From ee6b5cff4f0e43961be2ad932938200aef7825e4 Mon Sep 17 00:00:00 2001 From: Ali Bektas Date: Tue, 7 Jan 2025 22:57:40 +0100 Subject: [PATCH 01/75] Make Pat::Range's start and end Option --- .../crates/hir-def/src/expr_store.rs | 10 ++-- .../crates/hir-def/src/expr_store/lower.rs | 46 +++++++++++++------ .../crates/hir-def/src/expr_store/pretty.rs | 4 +- .../rust-analyzer/crates/hir-def/src/hir.rs | 4 +- .../crates/hir-ty/src/diagnostics/expr.rs | 4 +- .../hir-ty/src/mir/lower/pattern_matching.rs | 6 ++- 6 files changed, 48 insertions(+), 26 deletions(-) diff --git a/src/tools/rust-analyzer/crates/hir-def/src/expr_store.rs b/src/tools/rust-analyzer/crates/hir-def/src/expr_store.rs index 9df6eaade757a..5ff6a7ffe5669 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/expr_store.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/expr_store.rs @@ -112,9 +112,9 @@ pub struct ExpressionStoreSourceMap { // AST expressions can create patterns in destructuring assignments. Therefore, `ExprSource` can also map // to `PatId`, and `PatId` can also map to `ExprSource` (the other way around is unaffected). expr_map: FxHashMap, - expr_map_back: ArenaMap, + expr_map_back: ArenaMap, - pat_map: FxHashMap, + pat_map: FxHashMap, pat_map_back: ArenaMap, label_map: FxHashMap, @@ -606,12 +606,12 @@ impl Index for ExpressionStore { impl ExpressionStoreSourceMap { pub fn expr_or_pat_syntax(&self, id: ExprOrPatId) -> Result { match id { - ExprOrPatId::ExprId(id) => self.expr_syntax(id).map(|it| it.map(AstPtr::wrap_left)), + ExprOrPatId::ExprId(id) => self.expr_syntax(id), ExprOrPatId::PatId(id) => self.pat_syntax(id), } } - pub fn expr_syntax(&self, expr: ExprId) -> Result { + pub fn expr_syntax(&self, expr: ExprId) -> Result { self.expr_map_back.get(expr).cloned().ok_or(SyntheticSyntax) } @@ -633,7 +633,7 @@ impl ExpressionStoreSourceMap { self.pat_map_back.get(pat).cloned().ok_or(SyntheticSyntax) } - pub fn node_pat(&self, node: InFile<&ast::Pat>) -> Option { + pub fn node_pat(&self, node: InFile<&ast::Pat>) -> Option { self.pat_map.get(&node.map(AstPtr::new)).cloned() } diff --git a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower.rs b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower.rs index 88f770da02a4e..d2715ac8760b2 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower.rs @@ -1784,23 +1784,32 @@ impl ExprCollector<'_> { self.collect_macro_call(call, macro_ptr, true, |this, expanded_pat| { this.collect_pat_opt(expanded_pat, binding_list) }); - self.source_map.pat_map.insert(src, pat); + self.source_map.pat_map.insert(src, pat.into()); return pat; } None => Pat::Missing, }, // FIXME: implement in a way that also builds source map and calculates assoc resolutions in type inference. ast::Pat::RangePat(p) => { - let mut range_part_lower = |p: Option| { - p.and_then(|it| match &it { - ast::Pat::LiteralPat(it) => { - Some(Box::new(LiteralOrConst::Literal(pat_literal_to_hir(it)?.0))) - } - pat @ (ast::Pat::IdentPat(_) | ast::Pat::PathPat(_)) => { - let subpat = self.collect_pat(pat.clone(), binding_list); - Some(Box::new(LiteralOrConst::Const(subpat))) + let mut range_part_lower = |p: Option| -> Option { + p.and_then(|it| { + let ptr = PatPtr::new(&it); + match &it { + ast::Pat::LiteralPat(it) => { + // Some(Box::new(LiteralOrConst::Literal(pat_literal_to_hir(it)?.0))) + Some(self.alloc_expr_from_pat( + Expr::Literal(pat_literal_to_hir(it)?.0), + ptr, + )) + } + pat @ (ast::Pat::IdentPat(_) | ast::Pat::PathPat(_)) => { + // let subpat = self.collect_pat(pat.clone(), binding_list); + // Some(Box::new(LiteralOrConst::Const(subpat))) + // TODO + Some(self.missing_expr()) + } + _ => None, } - _ => None, }) }; let start = range_part_lower(p.start()); @@ -1863,7 +1872,7 @@ impl ExprCollector<'_> { } }); if let Some(pat) = pat.left() { - self.source_map.pat_map.insert(src, pat); + self.source_map.pat_map.insert(src, pat.into()); } pat } @@ -2490,7 +2499,7 @@ impl ExprCollector<'_> { fn alloc_expr(&mut self, expr: Expr, ptr: ExprPtr) -> ExprId { let src = self.expander.in_file(ptr); let id = self.store.exprs.alloc(expr); - self.source_map.expr_map_back.insert(id, src); + self.source_map.expr_map_back.insert(id, src.map(AstPtr::wrap_left)); self.source_map.expr_map.insert(src, id.into()); id } @@ -2502,7 +2511,7 @@ impl ExprCollector<'_> { fn alloc_expr_desugared_with_ptr(&mut self, expr: Expr, ptr: ExprPtr) -> ExprId { let src = self.expander.in_file(ptr); let id = self.store.exprs.alloc(expr); - self.source_map.expr_map_back.insert(id, src); + self.source_map.expr_map_back.insert(id, src.map(AstPtr::wrap_left)); // We intentionally don't fill this as it could overwrite a non-desugared entry // self.source_map.expr_map.insert(src, id); id @@ -2526,11 +2535,20 @@ impl ExprCollector<'_> { self.source_map.pat_map_back.insert(id, src.map(AstPtr::wrap_left)); id } + + fn alloc_expr_from_pat(&mut self, expr: Expr, ptr: PatPtr) -> ExprId { + let src = self.expander.in_file(ptr); + let id = self.body.exprs.alloc(expr); + self.source_map.pat_map.insert(src, id.into()); + self.source_map.expr_map_back.insert(id, src.map(AstPtr::wrap_right)); + id + } + fn alloc_pat(&mut self, pat: Pat, ptr: PatPtr) -> PatId { let src = self.expander.in_file(ptr); let id = self.store.pats.alloc(pat); self.source_map.pat_map_back.insert(id, src.map(AstPtr::wrap_right)); - self.source_map.pat_map.insert(src, id); + self.source_map.pat_map.insert(src, id.into()); id } // FIXME: desugared pats don't have ptr, that's wrong and should be fixed somehow. diff --git a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/pretty.rs b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/pretty.rs index 6a0b1e5197905..c28cfb24529c4 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/pretty.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/pretty.rs @@ -656,11 +656,11 @@ impl Printer<'_> { } Pat::Range { start, end } => { if let Some(start) = start { - self.print_literal_or_const(start); + self.print_expr(*start); } w!(self, "..="); if let Some(end) = end { - self.print_literal_or_const(end); + self.print_expr(*end); } } Pat::Slice { prefix, slice, suffix } => { diff --git a/src/tools/rust-analyzer/crates/hir-def/src/hir.rs b/src/tools/rust-analyzer/crates/hir-def/src/hir.rs index 0dcddf162b2fa..a964512beb2d3 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/hir.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/hir.rs @@ -571,8 +571,8 @@ pub enum Pat { ellipsis: bool, }, Range { - start: Option>, - end: Option>, + start: Option, + end: Option, }, Slice { prefix: Box<[PatId]>, diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/diagnostics/expr.rs b/src/tools/rust-analyzer/crates/hir-ty/src/diagnostics/expr.rs index 0b5f1319243f6..59aaf85164a0c 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/diagnostics/expr.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/diagnostics/expr.rs @@ -440,7 +440,9 @@ impl ExprValidator { return; }; let root = source_ptr.file_syntax(db.upcast()); - let ast::Expr::IfExpr(if_expr) = source_ptr.value.to_node(&root) else { + let either::Left(ast::Expr::IfExpr(if_expr)) = + source_ptr.value.to_node(&root) + else { return; }; let mut top_if_expr = if_expr; diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/mir/lower/pattern_matching.rs b/src/tools/rust-analyzer/crates/hir-ty/src/mir/lower/pattern_matching.rs index 2ffea34c85a10..d78d15288adc1 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/mir/lower/pattern_matching.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/mir/lower/pattern_matching.rs @@ -234,10 +234,12 @@ impl MirLowerCtx<'_> { }; if mode == MatchingMode::Check { if let Some(start) = start { - add_check(start, BinOp::Le)?; + // TODO + // add_check(start, BinOp::Le)?; } if let Some(end) = end { - add_check(end, BinOp::Ge)?; + // TODO + // add_check(end, BinOp::Ge)?; } } (current, current_else) From 31a56851449d0e8a65991d2e2a0ae637d5779d9c Mon Sep 17 00:00:00 2001 From: Ali Bektas Date: Wed, 8 Jan 2025 00:26:47 +0100 Subject: [PATCH 02/75] Make higher levels adapt Bodys exprs having ExprOrPatId values --- .../crates/hir/src/diagnostics.rs | 35 ++++++++++--------- .../crates/hir/src/has_source.rs | 4 +-- src/tools/rust-analyzer/crates/hir/src/lib.rs | 7 ++-- .../crates/hir/src/semantics/source_to_def.rs | 2 +- .../crates/hir/src/source_analyzer.rs | 2 +- .../src/handlers/mismatched_arg_count.rs | 2 +- .../src/handlers/unresolved_field.rs | 7 ++-- .../src/handlers/unresolved_method.rs | 6 ++-- 8 files changed, 32 insertions(+), 33 deletions(-) diff --git a/src/tools/rust-analyzer/crates/hir/src/diagnostics.rs b/src/tools/rust-analyzer/crates/hir/src/diagnostics.rs index 64e982c42d7f6..9a5e50af07908 100644 --- a/src/tools/rust-analyzer/crates/hir/src/diagnostics.rs +++ b/src/tools/rust-analyzer/crates/hir/src/diagnostics.rs @@ -6,6 +6,7 @@ use cfg::{CfgExpr, CfgOptions}; use either::Either; use hir_def::{ + body::ExprOrPatPtr, hir::ExprOrPatId, path::{hir_segment_to_ast_segment, ModPath}, type_ref::TypesSourceMap, @@ -115,14 +116,14 @@ diagnostics![ #[derive(Debug)] pub struct BreakOutsideOfLoop { - pub expr: InFile>, + pub expr: InFile>>, pub is_break: bool, pub bad_value_break: bool, } #[derive(Debug)] pub struct TypedHole { - pub expr: InFile>, + pub expr: InFile>>, pub expected: Type, } @@ -234,13 +235,13 @@ pub struct MismatchedTupleStructPatArgCount { #[derive(Debug)] pub struct ExpectedFunction { - pub call: InFile>, + pub call: InFile>>, pub found: Type, } #[derive(Debug)] pub struct UnresolvedField { - pub expr: InFile>, + pub expr: InFile>>, pub receiver: Type, pub name: Name, pub method_with_same_name_exists: bool, @@ -248,7 +249,7 @@ pub struct UnresolvedField { #[derive(Debug)] pub struct UnresolvedMethodCall { - pub expr: InFile>, + pub expr: InFile>>, pub receiver: Type, pub name: Name, pub field_with_same_name: Option, @@ -267,7 +268,7 @@ pub struct UnresolvedIdent { #[derive(Debug)] pub struct PrivateField { - pub expr: InFile>, + pub expr: InFile>>, pub field: Field, } @@ -302,7 +303,7 @@ pub struct ReplaceFilterMapNextWithFindMap { #[derive(Debug)] pub struct MismatchedArgCount { - pub call_expr: InFile>, + pub call_expr: InFile, pub expected: usize, pub found: usize, } @@ -395,13 +396,13 @@ pub struct RemoveUnnecessaryElse { #[derive(Debug)] pub struct CastToUnsized { - pub expr: InFile>, + pub expr: InFile>>, pub cast_ty: Type, } #[derive(Debug)] pub struct InvalidCast { - pub expr: InFile>, + pub expr: InFile>>, pub error: CastError, pub expr_ty: Type, pub cast_ty: Type, @@ -428,9 +429,7 @@ impl AnyDiagnostic { .collect(); let record = match record { - Either::Left(record_expr) => { - source_map.expr_syntax(record_expr).ok()?.map(AstPtr::wrap_left) - } + Either::Left(record_expr) => source_map.expr_syntax(record_expr).ok()?, Either::Right(record_pat) => source_map.pat_syntax(record_pat).ok()?, }; let file = record.file_id; @@ -474,7 +473,7 @@ impl AnyDiagnostic { return Some( ReplaceFilterMapNextWithFindMap { file: next_source_ptr.file_id, - next_expr: next_source_ptr.value, + next_expr: next_source_ptr.value.cast()?, } .into(), ); @@ -484,7 +483,9 @@ impl AnyDiagnostic { match source_map.expr_syntax(match_expr) { Ok(source_ptr) => { let root = source_ptr.file_syntax(db.upcast()); - if let ast::Expr::MatchExpr(match_expr) = &source_ptr.value.to_node(&root) { + if let Either::Left(ast::Expr::MatchExpr(match_expr)) = + &source_ptr.value.to_node(&root) + { match match_expr.expr() { Some(scrut_expr) if match_expr.match_arm_list().is_some() => { return Some( @@ -561,7 +562,7 @@ impl AnyDiagnostic { let pat_syntax = |pat| source_map.pat_syntax(pat).inspect_err(|_| stdx::never!("synthetic syntax")).ok(); let expr_or_pat_syntax = |id| match id { - ExprOrPatId::ExprId(expr) => expr_syntax(expr).map(|it| it.map(AstPtr::wrap_left)), + ExprOrPatId::ExprId(expr) => expr_syntax(expr), ExprOrPatId::PatId(pat) => pat_syntax(pat), }; Some(match d { @@ -633,7 +634,7 @@ impl AnyDiagnostic { &InferenceDiagnostic::UnresolvedIdent { id } => { let node = match id { ExprOrPatId::ExprId(id) => match source_map.expr_syntax(id) { - Ok(syntax) => syntax.map(|it| (it.wrap_left(), None)), + Ok(syntax) => syntax.map(|it| (it, None)), Err(SyntheticSyntax) => source_map .format_args_implicit_capture(id)? .map(|(node, range)| (node.wrap_left(), Some(range))), @@ -652,7 +653,7 @@ impl AnyDiagnostic { } &InferenceDiagnostic::MismatchedTupleStructPatArgCount { pat, expected, found } => { let expr_or_pat = match pat { - ExprOrPatId::ExprId(expr) => expr_syntax(expr)?.map(AstPtr::wrap_left), + ExprOrPatId::ExprId(expr) => expr_syntax(expr)?, ExprOrPatId::PatId(pat) => { let InFile { file_id, value } = pat_syntax(pat)?; diff --git a/src/tools/rust-analyzer/crates/hir/src/has_source.rs b/src/tools/rust-analyzer/crates/hir/src/has_source.rs index 82c90ac30101b..a34b4980832c8 100644 --- a/src/tools/rust-analyzer/crates/hir/src/has_source.rs +++ b/src/tools/rust-analyzer/crates/hir/src/has_source.rs @@ -248,7 +248,7 @@ impl HasSource for Param { let ast @ InFile { file_id, value } = source_map.expr_syntax(expr_id).ok()?; let root = db.parse_or_expand(file_id); match value.to_node(&root) { - ast::Expr::ClosureExpr(it) => it + Either::Left(ast::Expr::ClosureExpr(it)) => it .param_list()? .params() .nth(self.idx) @@ -301,7 +301,7 @@ impl HasSource for InlineAsmOperand { let root = src.file_syntax(db.upcast()); return src .map(|ast| match ast.to_node(&root) { - ast::Expr::AsmExpr(asm) => asm + Either::Left(ast::Expr::AsmExpr(asm)) => asm .asm_pieces() .filter_map(|it| match it { ast::AsmPiece::AsmOperandNamed(it) => Some(it), diff --git a/src/tools/rust-analyzer/crates/hir/src/lib.rs b/src/tools/rust-analyzer/crates/hir/src/lib.rs index 56090bc6b6057..26b2819913e25 100644 --- a/src/tools/rust-analyzer/crates/hir/src/lib.rs +++ b/src/tools/rust-analyzer/crates/hir/src/lib.rs @@ -1957,7 +1957,7 @@ impl DefWithBody { ExprOrPatId::PatId(pat) => source_map.pat_syntax(pat).map(Either::Right), }; let expr_or_pat = match expr_or_pat { - Ok(Either::Left(expr)) => expr.map(AstPtr::wrap_left), + Ok(Either::Left(expr)) => expr, Ok(Either::Right(InFile { file_id, value: pat })) => { // cast from Either -> Either<_, Pat> let Some(ptr) = AstPtr::try_from_raw(pat.syntax_node_ptr()) else { @@ -4592,10 +4592,7 @@ impl CaptureUsages { match span { mir::MirSpan::ExprId(expr) => { if let Ok(expr) = source_map.expr_syntax(expr) { - result.push(CaptureUsageSource { - is_ref, - source: expr.map(AstPtr::wrap_left), - }) + result.push(CaptureUsageSource { is_ref, source: expr }) } } mir::MirSpan::PatId(pat) => { diff --git a/src/tools/rust-analyzer/crates/hir/src/semantics/source_to_def.rs b/src/tools/rust-analyzer/crates/hir/src/semantics/source_to_def.rs index 3c9e7065c41df..29d3736bae72c 100644 --- a/src/tools/rust-analyzer/crates/hir/src/semantics/source_to_def.rs +++ b/src/tools/rust-analyzer/crates/hir/src/semantics/source_to_def.rs @@ -352,7 +352,7 @@ impl SourceToDefCtx<'_, '_> { let src = src.cloned().map(ast::Pat::from); let pat_id = source_map.node_pat(src.as_ref())?; // the pattern could resolve to a constant, verify that this is not the case - if let crate::Pat::Bind { id, .. } = body[pat_id] { + if let crate::Pat::Bind { id, .. } = body[pat_id.as_pat()?] { Some((container, id)) } else { None diff --git a/src/tools/rust-analyzer/crates/hir/src/source_analyzer.rs b/src/tools/rust-analyzer/crates/hir/src/source_analyzer.rs index ca239826d4fcf..cf756c679750c 100644 --- a/src/tools/rust-analyzer/crates/hir/src/source_analyzer.rs +++ b/src/tools/rust-analyzer/crates/hir/src/source_analyzer.rs @@ -142,7 +142,7 @@ impl SourceAnalyzer { fn pat_id(&self, pat: &ast::Pat) -> Option { // FIXME: macros, see `expr_id` let src = InFile { file_id: self.file_id, value: pat }; - self.body_source_map()?.node_pat(src) + self.body_source_map()?.node_pat(src).and_then(ExprOrPatId::as_pat) } fn binding_id_of_pat(&self, pat: &ast::IdentPat) -> Option { diff --git a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/mismatched_arg_count.rs b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/mismatched_arg_count.rs index 7126617cdeed3..0520bb3fe9b9b 100644 --- a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/mismatched_arg_count.rs +++ b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/mismatched_arg_count.rs @@ -40,7 +40,7 @@ pub(crate) fn mismatched_arg_count( Diagnostic::new( DiagnosticCode::RustcHardError("E0107"), message, - invalid_args_range(ctx, d.call_expr.map(AstPtr::wrap_left), d.expected, d.found), + invalid_args_range(ctx, d.call_expr, d.expected, d.found), ) } diff --git a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/unresolved_field.rs b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/unresolved_field.rs index 4accd181ca43f..dfb03eee732ab 100644 --- a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/unresolved_field.rs +++ b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/unresolved_field.rs @@ -1,5 +1,6 @@ use std::iter; +use either::Either; use hir::{db::ExpandDatabase, Adt, FileRange, HasSource, HirDisplay, InFile, Struct, Union}; use ide_db::text_edit::TextEdit; use ide_db::{ @@ -41,7 +42,7 @@ pub(crate) fn unresolved_field( ), adjusted_display_range(ctx, d.expr, &|expr| { Some( - match expr { + match expr.left()? { ast::Expr::MethodCallExpr(it) => it.name_ref(), ast::Expr::FieldExpr(it) => it.name_ref(), _ => None, @@ -72,7 +73,7 @@ fn fixes(ctx: &DiagnosticsContext<'_>, d: &hir::UnresolvedField) -> Option, d: &hir::UnresolvedField) -> Option { // Get the FileRange of the invalid field access let root = ctx.sema.db.parse_or_expand(d.expr.file_id); - let expr = d.expr.value.to_node(&root); + let expr = d.expr.value.to_node(&root).left()?; let error_range = ctx.sema.original_range_opt(expr.syntax())?; let field_name = d.name.as_str(); @@ -263,7 +264,7 @@ fn record_field_layout( // FIXME: We should fill out the call here, move the cursor and trigger signature help fn method_fix( ctx: &DiagnosticsContext<'_>, - expr_ptr: &InFile>, + expr_ptr: &InFile>>, ) -> Option { let root = ctx.sema.db.parse_or_expand(expr_ptr.file_id); let expr = expr_ptr.value.to_node(&root); diff --git a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/unresolved_method.rs b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/unresolved_method.rs index 4ab649cc16282..dd1b593e8f6e6 100644 --- a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/unresolved_method.rs +++ b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/unresolved_method.rs @@ -35,7 +35,7 @@ pub(crate) fn unresolved_method( ), adjusted_display_range(ctx, d.expr, &|expr| { Some( - match expr { + match expr.left()? { ast::Expr::MethodCallExpr(it) => it.name_ref(), ast::Expr::FieldExpr(it) => it.name_ref(), _ => None, @@ -85,7 +85,7 @@ fn field_fix( let expr_ptr = &d.expr; let root = ctx.sema.db.parse_or_expand(expr_ptr.file_id); let expr = expr_ptr.value.to_node(&root); - let (file_id, range) = match expr { + let (file_id, range) = match expr.left()? { ast::Expr::MethodCallExpr(mcall) => { let FileRange { range, file_id } = ctx.sema.original_range_opt(mcall.receiver()?.syntax())?; @@ -117,7 +117,7 @@ fn assoc_func_fix(ctx: &DiagnosticsContext<'_>, d: &hir::UnresolvedMethodCall) - let expr_ptr = &d.expr; let root = db.parse_or_expand(expr_ptr.file_id); - let expr: ast::Expr = expr_ptr.value.to_node(&root); + let expr: ast::Expr = expr_ptr.value.to_node(&root).left()?; let call = ast::MethodCallExpr::cast(expr.syntax().clone())?; let range = InFile::new(expr_ptr.file_id, call.syntax().text_range()) From 8a18dce223a84e32dff217a0ba641576203600be Mon Sep 17 00:00:00 2001 From: Ali Bektas Date: Wed, 8 Jan 2025 00:48:25 +0100 Subject: [PATCH 03/75] Add a test to monitor whats going on --- .../crates/hir-def/src/expr_store/lower.rs | 17 +++++--- .../crates/hir-def/src/expr_store/tests.rs | 43 +++++++++++++++++++ 2 files changed, 54 insertions(+), 6 deletions(-) diff --git a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower.rs b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower.rs index d2715ac8760b2..3f3beb21858cc 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower.rs @@ -44,8 +44,8 @@ use crate::{ FormatPlaceholder, FormatSign, FormatTrait, }, Array, Binding, BindingAnnotation, BindingId, BindingProblems, CaptureBy, ClosureKind, - Expr, ExprId, Item, Label, LabelId, Literal, LiteralOrConst, MatchArm, Movability, - OffsetOf, Pat, PatId, RecordFieldPat, RecordLitField, Statement, + Expr, ExprId, Item, Label, LabelId, Literal, MatchArm, Movability, OffsetOf, Pat, PatId, + RecordFieldPat, RecordLitField, Statement, }, item_scope::BuiltinShadowMode, lang_item::LangItem, @@ -1802,10 +1802,15 @@ impl ExprCollector<'_> { ptr, )) } - pat @ (ast::Pat::IdentPat(_) | ast::Pat::PathPat(_)) => { - // let subpat = self.collect_pat(pat.clone(), binding_list); - // Some(Box::new(LiteralOrConst::Const(subpat))) - // TODO + ast::Pat::IdentPat(_) => Some(self.missing_expr()), + ast::Pat::PathPat(p) => { + if let Some(path) = p.path() { + if let Some(parsed) = self.parse_path(path) { + return Some( + self.alloc_expr_from_pat(Expr::Path(parsed), ptr), + ); + } + } Some(self.missing_expr()) } _ => None, diff --git a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/tests.rs b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/tests.rs index 9bf1ddb479380..5ce9a67f9b6c7 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/tests.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/tests.rs @@ -460,3 +460,46 @@ async fn foo(a: (), b: i32) -> u32 { expect!["fn foo(�: (), �: i32) -> impl ::core::future::Future:: �"] .assert_eq(&printed); } + +fn abc() { + let (db, body, owner) = lower( + r#" +pub const L: i32 = 6; +mod x { + pub const R: i32 = 100; +} +const fn f(x: i32) -> i32 { + match x { + -1..=5 => x * 10, + L..=x::R => x * 100, + _ => x, + } +}"#, + ); + + for (pat_id, pat) in body.pats.iter() { + match pat { + Pat::Range { start, end } => { + let pretty = body.pretty_print_pat(&db, owner, pat_id, false, Edition::Edition2021); + eprintln!("RANGE {}", pretty); + + if let Some(start) = start { + eprintln!("START"); + let expr = body.exprs[*start].clone(); + dbg!(expr); + } else { + eprintln!("START is None"); + } + + if let Some(end) = end { + eprintln!("END"); + let expr = body.exprs[*end].clone(); + dbg!(expr); + } else { + eprintln!("END is None"); + } + } + _ => {} + } + } +} From d694b2086ce3f60591220ea1ef31b9bdd5738fea Mon Sep 17 00:00:00 2001 From: Chayim Refael Friedman Date: Wed, 22 Jan 2025 19:01:56 +0200 Subject: [PATCH 04/75] Make `rust-analyzer.files.excludeDirs` work, actually I have no idea what the original writer of the code thought but the logic just seems backwards. We should not exclude a file/directory if it is equal to an include! This also meant that we had to add a `root == path` check so this stuff will actually work, which in turn meant excludes (of root files) no longer worked... Also rename if to `rust-analyzer.files.exclude`, because it can exclude files as well. --- .../crates/rust-analyzer/src/config.rs | 8 ++--- .../rust-analyzer/tests/slow-tests/main.rs | 36 ++++++++++++++++++- .../crates/vfs-notify/src/lib.rs | 5 +-- .../docs/book/src/configuration_generated.md | 4 +-- .../rust-analyzer/editors/code/package.json | 4 +-- 5 files changed, 46 insertions(+), 11 deletions(-) diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/config.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/config.rs index 7656c07c94851..daddeae13aa4c 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/config.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/config.rs @@ -84,10 +84,10 @@ config_data! { completion_snippets_custom: FxHashMap = Config::completion_snippets_default(), - /// These directories will be ignored by rust-analyzer. They are + /// These paths (file/directories) will be ignored by rust-analyzer. They are /// relative to the workspace root, and globs are not supported. You may /// also need to add the folders to Code's `files.watcherExclude`. - files_excludeDirs: Vec = vec![], + files_exclude | files_excludeDirs: Vec = vec![], @@ -1787,7 +1787,7 @@ impl Config { fn discovered_projects(&self) -> Vec { let exclude_dirs: Vec<_> = - self.files_excludeDirs().iter().map(|p| self.root_path.join(p)).collect(); + self.files_exclude().iter().map(|p| self.root_path.join(p)).collect(); let mut projects = vec![]; for fs_proj in &self.discovered_projects_from_filesystem { @@ -1909,7 +1909,7 @@ impl Config { } _ => FilesWatcher::Server, }, - exclude: self.files_excludeDirs().iter().map(|it| self.root_path.join(it)).collect(), + exclude: self.files_exclude().iter().map(|it| self.root_path.join(it)).collect(), } } diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/tests/slow-tests/main.rs b/src/tools/rust-analyzer/crates/rust-analyzer/tests/slow-tests/main.rs index 2b3c0a47a220d..5ad28d0b909ed 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/tests/slow-tests/main.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/tests/slow-tests/main.rs @@ -1372,6 +1372,40 @@ pub fn foo() {} name = "bar" version = "0.0.0" +[dependencies] +foo = { path = "../foo" } + +//- /bar/src/lib.rs +"#, + ) + .root("foo") + .root("bar") + .root("baz") + .with_config(json!({ + "files": { + "exclude": ["foo"] + } + })) + .server() + .wait_until_workspace_is_loaded(); + + server.request::(Default::default(), json!([])); + + let server = Project::with_fixture( + r#" +//- /foo/Cargo.toml +[package] +name = "foo" +version = "0.0.0" + +//- /foo/src/lib.rs +pub fn foo() {} + +//- /bar/Cargo.toml +[package] +name = "bar" +version = "0.0.0" + //- /bar/src/lib.rs pub fn bar() {} @@ -1388,7 +1422,7 @@ version = "0.0.0" .root("baz") .with_config(json!({ "files": { - "excludeDirs": ["foo", "bar"] + "exclude": ["foo", "bar"] } })) .server() diff --git a/src/tools/rust-analyzer/crates/vfs-notify/src/lib.rs b/src/tools/rust-analyzer/crates/vfs-notify/src/lib.rs index 0ae8b7baf464a..320033417640a 100644 --- a/src/tools/rust-analyzer/crates/vfs-notify/src/lib.rs +++ b/src/tools/rust-analyzer/crates/vfs-notify/src/lib.rs @@ -280,8 +280,9 @@ impl NotifyActor { return false; } - root == path - || dirs.exclude.iter().chain(&dirs.include).all(|it| it != path) + // We want to filter out subdirectories that are roots themselves, because they will be visited separately. + dirs.exclude.iter().all(|it| it != path) + && (root == path || dirs.include.iter().all(|it| it != path)) }); let files = walkdir.filter_map(|it| it.ok()).filter_map(|entry| { diff --git a/src/tools/rust-analyzer/docs/book/src/configuration_generated.md b/src/tools/rust-analyzer/docs/book/src/configuration_generated.md index 49eb7248898e5..a7f54289b9644 100644 --- a/src/tools/rust-analyzer/docs/book/src/configuration_generated.md +++ b/src/tools/rust-analyzer/docs/book/src/configuration_generated.md @@ -470,9 +470,9 @@ The warnings will be indicated by a blue squiggly underline in code and a blue icon in the `Problems Panel`. -**rust-analyzer.files.excludeDirs** (default: []) +**rust-analyzer.files.exclude** (default: []) - These directories will be ignored by rust-analyzer. They are + These paths (file/directories) will be ignored by rust-analyzer. They are relative to the workspace root, and globs are not supported. You may also need to add the folders to Code's `files.watcherExclude`. diff --git a/src/tools/rust-analyzer/editors/code/package.json b/src/tools/rust-analyzer/editors/code/package.json index 57f4254b68996..5db8ca52a5875 100644 --- a/src/tools/rust-analyzer/editors/code/package.json +++ b/src/tools/rust-analyzer/editors/code/package.json @@ -1473,8 +1473,8 @@ { "title": "files", "properties": { - "rust-analyzer.files.excludeDirs": { - "markdownDescription": "These directories will be ignored by rust-analyzer. They are\nrelative to the workspace root, and globs are not supported. You may\nalso need to add the folders to Code's `files.watcherExclude`.", + "rust-analyzer.files.exclude": { + "markdownDescription": "These paths (file/directories) will be ignored by rust-analyzer. They are\nrelative to the workspace root, and globs are not supported. You may\nalso need to add the folders to Code's `files.watcherExclude`.", "default": [], "type": "array", "items": { From cee2df27b7a1ae72cecad3d1d4d16911db1e596d Mon Sep 17 00:00:00 2001 From: Chayim Refael Friedman Date: Tue, 4 Feb 2025 23:07:05 +0200 Subject: [PATCH 05/75] Refactor `TyLoweringContext::substs_from_args_and_bindings()` to always take a `GenericDefId` --- .../rust-analyzer/crates/hir-ty/src/infer.rs | 3 +- .../rust-analyzer/crates/hir-ty/src/lower.rs | 42 ++++++++----------- 2 files changed, 18 insertions(+), 27 deletions(-) diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/infer.rs b/src/tools/rust-analyzer/crates/hir-ty/src/infer.rs index 617ebba8811e2..cf6905a0b28f1 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/infer.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/infer.rs @@ -1625,8 +1625,7 @@ impl<'a> InferenceContext<'a> { None => path.segments().last().unwrap(), Some(n) => path.segments().get(path.segments().len() - n - 1).unwrap(), }; - let substs = - ctx.substs_from_path_segment(resolved_seg, Some(it.into()), true, None); + let substs = ctx.substs_from_path_segment(resolved_seg, it.into(), true, None); drop(ctx); let ty = self.db.ty(it.into()); let ty = self.insert_type_vars(ty.substitute(Interner, &substs)); diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/lower.rs b/src/tools/rust-analyzer/crates/hir-ty/src/lower.rs index db13e1fd35437..595929a8f41b6 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/lower.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/lower.rs @@ -592,7 +592,7 @@ impl<'a> TyLoweringContext<'a> { // this point (`trait_ref.substitution`). let substitution = self.substs_from_path_segment( segment, - Some(associated_ty.into()), + associated_ty.into(), false, None, ); @@ -1007,7 +1007,7 @@ impl<'a> TyLoweringContext<'a> { // that method to optionally take parent `Substitution` as we already know them at // this point (`t.substitution`). let substs = - self.substs_from_path_segment(segment, Some(associated_ty.into()), false, None); + self.substs_from_path_segment(segment, associated_ty.into(), false, None); let len_self = crate::generics::generics(self.db.upcast(), associated_ty.into()).len_self(); @@ -1037,9 +1037,9 @@ impl<'a> TyLoweringContext<'a> { infer_args: bool, ) -> Ty { let generic_def = match typeable { - TyDefId::BuiltinType(_) => None, - TyDefId::AdtId(it) => Some(it.into()), - TyDefId::TypeAliasId(it) => Some(it.into()), + TyDefId::BuiltinType(builtin) => return TyBuilder::builtin(builtin), + TyDefId::AdtId(it) => it.into(), + TyDefId::TypeAliasId(it) => it.into(), }; let substs = self.substs_from_path_segment(segment, generic_def, infer_args, None); self.db.ty(typeable).substitute(Interner, &substs) @@ -1058,11 +1058,11 @@ impl<'a> TyLoweringContext<'a> { ) -> Substitution { let last = path.segments().last(); let (segment, generic_def) = match resolved { - ValueTyDefId::FunctionId(it) => (last, Some(it.into())), - ValueTyDefId::StructId(it) => (last, Some(it.into())), - ValueTyDefId::UnionId(it) => (last, Some(it.into())), - ValueTyDefId::ConstId(it) => (last, Some(it.into())), - ValueTyDefId::StaticId(_) => (last, None), + ValueTyDefId::FunctionId(it) => (last, it.into()), + ValueTyDefId::StructId(it) => (last, it.into()), + ValueTyDefId::UnionId(it) => (last, it.into()), + ValueTyDefId::ConstId(it) => (last, it.into()), + ValueTyDefId::StaticId(_) => return Substitution::empty(Interner), ValueTyDefId::EnumVariantId(var) => { // the generic args for an enum variant may be either specified // on the segment referring to the enum, or on the segment @@ -1075,23 +1075,17 @@ impl<'a> TyLoweringContext<'a> { Some(segment) if segment.args_and_bindings.is_some() => Some(segment), _ => last, }; - (segment, Some(var.lookup(self.db.upcast()).parent.into())) + (segment, var.lookup(self.db.upcast()).parent.into()) } }; - if let Some(segment) = segment { - self.substs_from_path_segment(segment, generic_def, infer_args, None) - } else if let Some(generic_def) = generic_def { - // lang item - self.substs_from_args_and_bindings(None, Some(generic_def), infer_args, None) - } else { - Substitution::empty(Interner) - } + let args_and_bindings = segment.and_then(|it| it.args_and_bindings); + self.substs_from_args_and_bindings(args_and_bindings, generic_def, infer_args, None) } pub(super) fn substs_from_path_segment( &mut self, segment: PathSegment<'_>, - def: Option, + def: GenericDefId, infer_args: bool, explicit_self_ty: Option, ) -> Substitution { @@ -1106,12 +1100,10 @@ impl<'a> TyLoweringContext<'a> { fn substs_from_args_and_bindings( &mut self, args_and_bindings: Option<&GenericArgs>, - def: Option, + def: GenericDefId, infer_args: bool, explicit_self_ty: Option, ) -> Substitution { - let Some(def) = def else { return Substitution::empty(Interner) }; - // Order is // - Optional Self parameter // - Lifetime parameters @@ -1317,7 +1309,7 @@ impl<'a> TyLoweringContext<'a> { resolved: TraitId, explicit_self_ty: Ty, ) -> Substitution { - self.substs_from_path_segment(segment, Some(resolved.into()), false, Some(explicit_self_ty)) + self.substs_from_path_segment(segment, resolved.into(), false, Some(explicit_self_ty)) } pub(crate) fn lower_where_predicate<'b>( @@ -1445,7 +1437,7 @@ impl<'a> TyLoweringContext<'a> { let substitution = self.substs_from_path_segment( // FIXME: This is hack. We shouldn't really build `PathSegment` directly. PathSegment { name: &binding.name, args_and_bindings: binding.args.as_ref() }, - Some(associated_ty.into()), + associated_ty.into(), false, // this is not relevant Some(super_trait_ref.self_type_parameter(Interner)), ); From 54ad31b5b885bfcec5fd7d470ed03c0718656cac Mon Sep 17 00:00:00 2001 From: Chayim Refael Friedman Date: Tue, 4 Feb 2025 23:07:35 +0200 Subject: [PATCH 06/75] Fix incorrect terminology Lifetimes are elided in function signatures, and inferred in bodies. --- src/tools/rust-analyzer/crates/hir-ty/src/infer/expr.rs | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/infer/expr.rs b/src/tools/rust-analyzer/crates/hir-ty/src/infer/expr.rs index 86e5afdb50923..ab3c039ece37d 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/infer/expr.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/infer/expr.rs @@ -2132,8 +2132,8 @@ impl InferenceContext<'_> { for kind_id in def_generics.iter_self_id().take(self_params) { let arg = args.peek(); let arg = match (kind_id, arg) { - // Lifetimes can be elided. - // Once we have implemented lifetime elision correctly, + // Lifetimes can be inferred. + // Once we have implemented lifetime inference correctly, // this should be handled in a proper way. ( GenericParamId::LifetimeParamId(_), From 66599f1dd5ade8f87cfeca3b2334649820c659d9 Mon Sep 17 00:00:00 2001 From: Chayim Refael Friedman Date: Tue, 4 Feb 2025 23:07:48 +0200 Subject: [PATCH 07/75] Remove a no-longer-correct FIXME --- src/tools/rust-analyzer/crates/hir-ty/src/lower/diagnostics.rs | 1 - 1 file changed, 1 deletion(-) diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/lower/diagnostics.rs b/src/tools/rust-analyzer/crates/hir-ty/src/lower/diagnostics.rs index 7fe196cdbb59a..dac04307b7403 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/lower/diagnostics.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/lower/diagnostics.rs @@ -26,7 +26,6 @@ pub enum GenericArgsProhibitedReason { Static, /// When there is a generic enum, within the expression `Enum::Variant`, /// either `Enum` or `Variant` are allowed to have generic arguments, but not both. - // FIXME: This is not used now but it should be. EnumVariant, } From c7e331bfb8d131d52278785e2fe8338010020eb0 Mon Sep 17 00:00:00 2001 From: Chayim Refael Friedman Date: Tue, 4 Feb 2025 17:53:52 +0200 Subject: [PATCH 08/75] Do not include excluded files even when the client opens them This require a pretty big modification, because this is a new kind of file: exists - but ignore it. --- .../crates/load-cargo/src/lib.rs | 4 +- .../crates/rust-analyzer/src/config.rs | 6 +- .../crates/rust-analyzer/src/global_state.rs | 25 ++- .../src/handlers/notification.rs | 16 +- .../rust-analyzer/src/handlers/request.rs | 170 ++++++++++-------- .../src/integrated_benchmarks.rs | 14 +- .../crates/rust-analyzer/src/lib.rs | 11 ++ .../rust-analyzer/src/lsp/from_proto.rs | 30 ++-- .../crates/rust-analyzer/src/main_loop.rs | 31 ++-- .../crates/rust-analyzer/src/reload.rs | 4 +- src/tools/rust-analyzer/crates/vfs/src/lib.rs | 27 ++- 11 files changed, 217 insertions(+), 121 deletions(-) diff --git a/src/tools/rust-analyzer/crates/load-cargo/src/lib.rs b/src/tools/rust-analyzer/crates/load-cargo/src/lib.rs index 5654c04a59287..67ee9d1119971 100644 --- a/src/tools/rust-analyzer/crates/load-cargo/src/lib.rs +++ b/src/tools/rust-analyzer/crates/load-cargo/src/lib.rs @@ -94,7 +94,9 @@ pub fn load_workspace( let contents = loader.load_sync(path); let path = vfs::VfsPath::from(path.to_path_buf()); vfs.set_file_contents(path.clone(), contents); - vfs.file_id(&path) + vfs.file_id(&path).and_then(|(file_id, excluded)| { + (excluded == vfs::FileExcluded::No).then_some(file_id) + }) }, extra_env, ); diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/config.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/config.rs index daddeae13aa4c..758f60dc3e436 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/config.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/config.rs @@ -1909,10 +1909,14 @@ impl Config { } _ => FilesWatcher::Server, }, - exclude: self.files_exclude().iter().map(|it| self.root_path.join(it)).collect(), + exclude: self.excluded().collect(), } } + pub fn excluded(&self) -> impl Iterator + use<'_> { + self.files_exclude().iter().map(|it| self.root_path.join(it)) + } + pub fn notifications(&self) -> NotificationsConfig { NotificationsConfig { cargo_toml_not_found: self.notifications_cargoTomlNotFound().to_owned(), diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/global_state.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/global_state.rs index b52f64aaacecb..70105cda006b2 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/global_state.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/global_state.rs @@ -650,7 +650,8 @@ impl GlobalStateSnapshot { RwLockReadGuard::map(self.vfs.read(), |(it, _)| it) } - pub(crate) fn url_to_file_id(&self, url: &Url) -> anyhow::Result { + /// Returns `None` if the file was excluded. + pub(crate) fn url_to_file_id(&self, url: &Url) -> anyhow::Result> { url_to_file_id(&self.vfs_read(), url) } @@ -658,7 +659,8 @@ impl GlobalStateSnapshot { file_id_to_url(&self.vfs_read(), id) } - pub(crate) fn vfs_path_to_file_id(&self, vfs_path: &VfsPath) -> anyhow::Result { + /// Returns `None` if the file was excluded. + pub(crate) fn vfs_path_to_file_id(&self, vfs_path: &VfsPath) -> anyhow::Result> { vfs_path_to_file_id(&self.vfs_read(), vfs_path) } @@ -750,14 +752,21 @@ pub(crate) fn file_id_to_url(vfs: &vfs::Vfs, id: FileId) -> Url { url_from_abs_path(path) } -pub(crate) fn url_to_file_id(vfs: &vfs::Vfs, url: &Url) -> anyhow::Result { +/// Returns `None` if the file was excluded. +pub(crate) fn url_to_file_id(vfs: &vfs::Vfs, url: &Url) -> anyhow::Result> { let path = from_proto::vfs_path(url)?; - let res = vfs.file_id(&path).ok_or_else(|| anyhow::format_err!("file not found: {path}"))?; - Ok(res) + vfs_path_to_file_id(vfs, &path) } -pub(crate) fn vfs_path_to_file_id(vfs: &vfs::Vfs, vfs_path: &VfsPath) -> anyhow::Result { - let res = +/// Returns `None` if the file was excluded. +pub(crate) fn vfs_path_to_file_id( + vfs: &vfs::Vfs, + vfs_path: &VfsPath, +) -> anyhow::Result> { + let (file_id, excluded) = vfs.file_id(vfs_path).ok_or_else(|| anyhow::format_err!("file not found: {vfs_path}"))?; - Ok(res) + match excluded { + vfs::FileExcluded::Yes => Ok(None), + vfs::FileExcluded::No => Ok(Some(file_id)), + } } diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/handlers/notification.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/handlers/notification.rs index 48856d19e155d..55344a4d6ac60 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/handlers/notification.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/handlers/notification.rs @@ -22,6 +22,7 @@ use crate::{ mem_docs::DocumentData, reload, target_spec::TargetSpec, + try_default, }; pub(crate) fn handle_cancel(state: &mut GlobalState, params: CancelParams) -> anyhow::Result<()> { @@ -74,6 +75,14 @@ pub(crate) fn handle_did_open_text_document( tracing::error!("duplicate DidOpenTextDocument: {}", path); } + if let Some(abs_path) = path.as_path() { + if state.config.excluded().any(|excluded| abs_path.starts_with(&excluded)) { + tracing::trace!("opened excluded file {abs_path}"); + state.vfs.write().0.insert_excluded_file(path); + return Ok(()); + } + } + let contents = params.text_document.text.into_bytes(); state.vfs.write().0.set_file_contents(path, Some(contents)); if state.config.discover_workspace_config().is_some() { @@ -127,7 +136,8 @@ pub(crate) fn handle_did_close_text_document( tracing::error!("orphan DidCloseTextDocument: {}", path); } - if let Some(file_id) = state.vfs.read().0.file_id(&path) { + // Clear diagnostics also for excluded files, just in case. + if let Some((file_id, _)) = state.vfs.read().0.file_id(&path) { state.diagnostics.clear_native_for(file_id); } @@ -146,7 +156,7 @@ pub(crate) fn handle_did_save_text_document( ) -> anyhow::Result<()> { if let Ok(vfs_path) = from_proto::vfs_path(¶ms.text_document.uri) { let snap = state.snapshot(); - let file_id = snap.vfs_path_to_file_id(&vfs_path)?; + let file_id = try_default!(snap.vfs_path_to_file_id(&vfs_path)?); let sr = snap.analysis.source_root_id(file_id)?; if state.config.script_rebuild_on_save(Some(sr)) && state.build_deps_changed { @@ -290,7 +300,7 @@ fn run_flycheck(state: &mut GlobalState, vfs_path: VfsPath) -> bool { let _p = tracing::info_span!("run_flycheck").entered(); let file_id = state.vfs.read().0.file_id(&vfs_path); - if let Some(file_id) = file_id { + if let Some((file_id, vfs::FileExcluded::No)) = file_id { let world = state.snapshot(); let invocation_strategy_once = state.config.flycheck(None).invocation_strategy_once(); let may_flycheck_workspace = state.config.flycheck_workspace(None); diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/handlers/request.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/handlers/request.rs index ed028f1d37b67..a3cb8c9be61f3 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/handlers/request.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/handlers/request.rs @@ -53,6 +53,7 @@ use crate::{ }, target_spec::{CargoTargetSpec, TargetSpec}, test_runner::{CargoTestHandle, TestTarget}, + try_default, }; pub(crate) fn handle_workspace_reload(state: &mut GlobalState, _: ()) -> anyhow::Result<()> { @@ -83,7 +84,8 @@ pub(crate) fn handle_analyzer_status( let mut file_id = None; if let Some(tdi) = params.text_document { match from_proto::file_id(&snap, &tdi.uri) { - Ok(it) => file_id = Some(it), + Ok(Some(it)) => file_id = Some(it), + Ok(None) => {} Err(_) => format_to!(buf, "file {} not found in vfs", tdi.uri), } } @@ -141,7 +143,7 @@ pub(crate) fn handle_view_syntax_tree( params: lsp_ext::ViewSyntaxTreeParams, ) -> anyhow::Result { let _p = tracing::info_span!("handle_view_syntax_tree").entered(); - let id = from_proto::file_id(&snap, ¶ms.text_document.uri)?; + let id = try_default!(from_proto::file_id(&snap, ¶ms.text_document.uri)?); let res = snap.analysis.view_syntax_tree(id)?; Ok(res) } @@ -151,7 +153,7 @@ pub(crate) fn handle_view_hir( params: lsp_types::TextDocumentPositionParams, ) -> anyhow::Result { let _p = tracing::info_span!("handle_view_hir").entered(); - let position = from_proto::file_position(&snap, params)?; + let position = try_default!(from_proto::file_position(&snap, params)?); let res = snap.analysis.view_hir(position)?; Ok(res) } @@ -161,7 +163,7 @@ pub(crate) fn handle_view_mir( params: lsp_types::TextDocumentPositionParams, ) -> anyhow::Result { let _p = tracing::info_span!("handle_view_mir").entered(); - let position = from_proto::file_position(&snap, params)?; + let position = try_default!(from_proto::file_position(&snap, params)?); let res = snap.analysis.view_mir(position)?; Ok(res) } @@ -171,7 +173,7 @@ pub(crate) fn handle_interpret_function( params: lsp_types::TextDocumentPositionParams, ) -> anyhow::Result { let _p = tracing::info_span!("handle_interpret_function").entered(); - let position = from_proto::file_position(&snap, params)?; + let position = try_default!(from_proto::file_position(&snap, params)?); let res = snap.analysis.interpret_function(position)?; Ok(res) } @@ -180,7 +182,7 @@ pub(crate) fn handle_view_file_text( snap: GlobalStateSnapshot, params: lsp_types::TextDocumentIdentifier, ) -> anyhow::Result { - let file_id = from_proto::file_id(&snap, ¶ms.uri)?; + let file_id = try_default!(from_proto::file_id(&snap, ¶ms.uri)?); Ok(snap.analysis.file_text(file_id)?.to_string()) } @@ -189,7 +191,7 @@ pub(crate) fn handle_view_item_tree( params: lsp_ext::ViewItemTreeParams, ) -> anyhow::Result { let _p = tracing::info_span!("handle_view_item_tree").entered(); - let file_id = from_proto::file_id(&snap, ¶ms.text_document.uri)?; + let file_id = try_default!(from_proto::file_id(&snap, ¶ms.text_document.uri)?); let res = snap.analysis.view_item_tree(file_id)?; Ok(res) } @@ -315,7 +317,7 @@ pub(crate) fn handle_expand_macro( params: lsp_ext::ExpandMacroParams, ) -> anyhow::Result> { let _p = tracing::info_span!("handle_expand_macro").entered(); - let file_id = from_proto::file_id(&snap, ¶ms.text_document.uri)?; + let file_id = try_default!(from_proto::file_id(&snap, ¶ms.text_document.uri)?); let line_index = snap.file_line_index(file_id)?; let offset = from_proto::offset(&line_index, params.position)?; @@ -328,7 +330,7 @@ pub(crate) fn handle_selection_range( params: lsp_types::SelectionRangeParams, ) -> anyhow::Result>> { let _p = tracing::info_span!("handle_selection_range").entered(); - let file_id = from_proto::file_id(&snap, ¶ms.text_document.uri)?; + let file_id = try_default!(from_proto::file_id(&snap, ¶ms.text_document.uri)?); let line_index = snap.file_line_index(file_id)?; let res: anyhow::Result> = params .positions @@ -371,7 +373,7 @@ pub(crate) fn handle_matching_brace( params: lsp_ext::MatchingBraceParams, ) -> anyhow::Result> { let _p = tracing::info_span!("handle_matching_brace").entered(); - let file_id = from_proto::file_id(&snap, ¶ms.text_document.uri)?; + let file_id = try_default!(from_proto::file_id(&snap, ¶ms.text_document.uri)?); let line_index = snap.file_line_index(file_id)?; params .positions @@ -395,7 +397,7 @@ pub(crate) fn handle_join_lines( ) -> anyhow::Result> { let _p = tracing::info_span!("handle_join_lines").entered(); - let file_id = from_proto::file_id(&snap, ¶ms.text_document.uri)?; + let file_id = try_default!(from_proto::file_id(&snap, ¶ms.text_document.uri)?); let config = snap.config.join_lines(); let line_index = snap.file_line_index(file_id)?; @@ -419,7 +421,7 @@ pub(crate) fn handle_on_enter( params: lsp_types::TextDocumentPositionParams, ) -> anyhow::Result>> { let _p = tracing::info_span!("handle_on_enter").entered(); - let position = from_proto::file_position(&snap, params)?; + let position = try_default!(from_proto::file_position(&snap, params)?); let edit = match snap.analysis.on_enter(position)? { None => return Ok(None), Some(it) => it, @@ -439,7 +441,8 @@ pub(crate) fn handle_on_type_formatting( return Ok(None); } - let mut position = from_proto::file_position(&snap, params.text_document_position)?; + let mut position = + try_default!(from_proto::file_position(&snap, params.text_document_position)?); let line_index = snap.file_line_index(position.file_id)?; // in `ide`, the `on_type` invariant is that @@ -465,32 +468,33 @@ pub(crate) fn handle_on_type_formatting( Ok(Some(change)) } +pub(crate) fn empty_diagnostic_report() -> lsp_types::DocumentDiagnosticReportResult { + lsp_types::DocumentDiagnosticReportResult::Report(lsp_types::DocumentDiagnosticReport::Full( + lsp_types::RelatedFullDocumentDiagnosticReport { + related_documents: None, + full_document_diagnostic_report: lsp_types::FullDocumentDiagnosticReport { + result_id: Some("rust-analyzer".to_owned()), + items: vec![], + }, + }, + )) +} + pub(crate) fn handle_document_diagnostics( snap: GlobalStateSnapshot, params: lsp_types::DocumentDiagnosticParams, ) -> anyhow::Result { - let empty = || { - lsp_types::DocumentDiagnosticReportResult::Report( - lsp_types::DocumentDiagnosticReport::Full( - lsp_types::RelatedFullDocumentDiagnosticReport { - related_documents: None, - full_document_diagnostic_report: lsp_types::FullDocumentDiagnosticReport { - result_id: Some("rust-analyzer".to_owned()), - items: vec![], - }, - }, - ), - ) + let file_id = match from_proto::file_id(&snap, ¶ms.text_document.uri)? { + Some(it) => it, + None => return Ok(empty_diagnostic_report()), }; - - let file_id = from_proto::file_id(&snap, ¶ms.text_document.uri)?; let source_root = snap.analysis.source_root_id(file_id)?; if !snap.analysis.is_local_source_root(source_root)? { - return Ok(empty()); + return Ok(empty_diagnostic_report()); } let config = snap.config.diagnostics(Some(source_root)); if !config.enabled { - return Ok(empty()); + return Ok(empty_diagnostic_report()); } let line_index = snap.file_line_index(file_id)?; let supports_related = snap.config.text_document_diagnostic_related_document_support(); @@ -546,7 +550,7 @@ pub(crate) fn handle_document_symbol( params: lsp_types::DocumentSymbolParams, ) -> anyhow::Result> { let _p = tracing::info_span!("handle_document_symbol").entered(); - let file_id = from_proto::file_id(&snap, ¶ms.text_document.uri)?; + let file_id = try_default!(from_proto::file_id(&snap, ¶ms.text_document.uri)?); let line_index = snap.file_line_index(file_id)?; let mut parents: Vec<(lsp_types::DocumentSymbol, Option)> = Vec::new(); @@ -760,7 +764,7 @@ pub(crate) fn handle_will_rename_files( } }) .filter_map(|(file_id, new_name)| { - snap.analysis.will_rename_file(file_id, &new_name).ok()? + snap.analysis.will_rename_file(file_id?, &new_name).ok()? }) .collect(); @@ -782,7 +786,8 @@ pub(crate) fn handle_goto_definition( params: lsp_types::GotoDefinitionParams, ) -> anyhow::Result> { let _p = tracing::info_span!("handle_goto_definition").entered(); - let position = from_proto::file_position(&snap, params.text_document_position_params)?; + let position = + try_default!(from_proto::file_position(&snap, params.text_document_position_params)?); let nav_info = match snap.analysis.goto_definition(position)? { None => return Ok(None), Some(it) => it, @@ -797,7 +802,10 @@ pub(crate) fn handle_goto_declaration( params: lsp_types::request::GotoDeclarationParams, ) -> anyhow::Result> { let _p = tracing::info_span!("handle_goto_declaration").entered(); - let position = from_proto::file_position(&snap, params.text_document_position_params.clone())?; + let position = try_default!(from_proto::file_position( + &snap, + params.text_document_position_params.clone() + )?); let nav_info = match snap.analysis.goto_declaration(position)? { None => return handle_goto_definition(snap, params), Some(it) => it, @@ -812,7 +820,8 @@ pub(crate) fn handle_goto_implementation( params: lsp_types::request::GotoImplementationParams, ) -> anyhow::Result> { let _p = tracing::info_span!("handle_goto_implementation").entered(); - let position = from_proto::file_position(&snap, params.text_document_position_params)?; + let position = + try_default!(from_proto::file_position(&snap, params.text_document_position_params)?); let nav_info = match snap.analysis.goto_implementation(position)? { None => return Ok(None), Some(it) => it, @@ -827,7 +836,8 @@ pub(crate) fn handle_goto_type_definition( params: lsp_types::request::GotoTypeDefinitionParams, ) -> anyhow::Result> { let _p = tracing::info_span!("handle_goto_type_definition").entered(); - let position = from_proto::file_position(&snap, params.text_document_position_params)?; + let position = + try_default!(from_proto::file_position(&snap, params.text_document_position_params)?); let nav_info = match snap.analysis.goto_type_definition(position)? { None => return Ok(None), Some(it) => it, @@ -880,7 +890,7 @@ pub(crate) fn handle_parent_module( } // check if invoked at the crate root - let file_id = from_proto::file_id(&snap, ¶ms.text_document.uri)?; + let file_id = try_default!(from_proto::file_id(&snap, ¶ms.text_document.uri)?); let crate_id = match snap.analysis.crates_for(file_id)?.first() { Some(&crate_id) => crate_id, None => return Ok(None), @@ -904,7 +914,7 @@ pub(crate) fn handle_parent_module( } // locate parent module by semantics - let position = from_proto::file_position(&snap, params)?; + let position = try_default!(from_proto::file_position(&snap, params)?); let navs = snap.analysis.parent_module(position)?; let res = to_proto::goto_definition_response(&snap, None, navs)?; Ok(Some(res)) @@ -915,7 +925,7 @@ pub(crate) fn handle_runnables( params: lsp_ext::RunnablesParams, ) -> anyhow::Result> { let _p = tracing::info_span!("handle_runnables").entered(); - let file_id = from_proto::file_id(&snap, ¶ms.text_document.uri)?; + let file_id = try_default!(from_proto::file_id(&snap, ¶ms.text_document.uri)?); let source_root = snap.analysis.source_root_id(file_id).ok(); let line_index = snap.file_line_index(file_id)?; let offset = params.position.and_then(|it| from_proto::offset(&line_index, it).ok()); @@ -1035,7 +1045,7 @@ pub(crate) fn handle_related_tests( params: lsp_types::TextDocumentPositionParams, ) -> anyhow::Result> { let _p = tracing::info_span!("handle_related_tests").entered(); - let position = from_proto::file_position(&snap, params)?; + let position = try_default!(from_proto::file_position(&snap, params)?); let tests = snap.analysis.related_tests(position, None)?; let mut res = Vec::new(); @@ -1053,7 +1063,8 @@ pub(crate) fn handle_completion( lsp_types::CompletionParams { text_document_position, context,.. }: lsp_types::CompletionParams, ) -> anyhow::Result> { let _p = tracing::info_span!("handle_completion").entered(); - let mut position = from_proto::file_position(&snap, text_document_position.clone())?; + let mut position = + try_default!(from_proto::file_position(&snap, text_document_position.clone())?); let line_index = snap.file_line_index(position.file_id)?; let completion_trigger_character = context.and_then(|ctx| ctx.trigger_character).and_then(|s| s.chars().next()); @@ -1102,7 +1113,8 @@ pub(crate) fn handle_completion_resolve( let resolve_data: lsp_ext::CompletionResolveData = serde_json::from_value(data)?; - let file_id = from_proto::file_id(&snap, &resolve_data.position.text_document.uri)?; + let file_id = from_proto::file_id(&snap, &resolve_data.position.text_document.uri)? + .expect("we never provide completions for excluded files"); let line_index = snap.file_line_index(file_id)?; // FIXME: We should fix up the position when retrying the cancelled request instead let Ok(offset) = from_proto::offset(&line_index, resolve_data.position.position) else { @@ -1185,7 +1197,7 @@ pub(crate) fn handle_folding_range( params: FoldingRangeParams, ) -> anyhow::Result>> { let _p = tracing::info_span!("handle_folding_range").entered(); - let file_id = from_proto::file_id(&snap, ¶ms.text_document.uri)?; + let file_id = try_default!(from_proto::file_id(&snap, ¶ms.text_document.uri)?); let folds = snap.analysis.folding_ranges(file_id)?; let text = snap.analysis.file_text(file_id)?; let line_index = snap.file_line_index(file_id)?; @@ -1202,7 +1214,8 @@ pub(crate) fn handle_signature_help( params: lsp_types::SignatureHelpParams, ) -> anyhow::Result> { let _p = tracing::info_span!("handle_signature_help").entered(); - let position = from_proto::file_position(&snap, params.text_document_position_params)?; + let position = + try_default!(from_proto::file_position(&snap, params.text_document_position_params)?); let help = match snap.analysis.signature_help(position)? { Some(it) => it, None => return Ok(None), @@ -1221,7 +1234,7 @@ pub(crate) fn handle_hover( PositionOrRange::Position(position) => Range::new(position, position), PositionOrRange::Range(range) => range, }; - let file_range = from_proto::file_range(&snap, ¶ms.text_document, range)?; + let file_range = try_default!(from_proto::file_range(&snap, ¶ms.text_document, range)?); let hover = snap.config.hover(); let info = match snap.analysis.hover(&hover, file_range)? { @@ -1255,7 +1268,7 @@ pub(crate) fn handle_prepare_rename( params: lsp_types::TextDocumentPositionParams, ) -> anyhow::Result> { let _p = tracing::info_span!("handle_prepare_rename").entered(); - let position = from_proto::file_position(&snap, params)?; + let position = try_default!(from_proto::file_position(&snap, params)?); let change = snap.analysis.prepare_rename(position)?.map_err(to_proto::rename_error)?; @@ -1269,7 +1282,7 @@ pub(crate) fn handle_rename( params: RenameParams, ) -> anyhow::Result> { let _p = tracing::info_span!("handle_rename").entered(); - let position = from_proto::file_position(&snap, params.text_document_position)?; + let position = try_default!(from_proto::file_position(&snap, params.text_document_position)?); let mut change = snap.analysis.rename(position, ¶ms.new_name)?.map_err(to_proto::rename_error)?; @@ -1304,7 +1317,7 @@ pub(crate) fn handle_references( params: lsp_types::ReferenceParams, ) -> anyhow::Result>> { let _p = tracing::info_span!("handle_references").entered(); - let position = from_proto::file_position(&snap, params.text_document_position)?; + let position = try_default!(from_proto::file_position(&snap, params.text_document_position)?); let exclude_imports = snap.config.find_all_refs_exclude_imports(); let exclude_tests = snap.config.find_all_refs_exclude_tests(); @@ -1375,9 +1388,9 @@ pub(crate) fn handle_code_action( return Ok(None); } - let file_id = from_proto::file_id(&snap, ¶ms.text_document.uri)?; + let file_id = try_default!(from_proto::file_id(&snap, ¶ms.text_document.uri)?); let line_index = snap.file_line_index(file_id)?; - let frange = from_proto::file_range(&snap, ¶ms.text_document, params.range)?; + let frange = try_default!(from_proto::file_range(&snap, ¶ms.text_document, params.range)?); let source_root = snap.analysis.source_root_id(file_id)?; let mut assists_config = snap.config.assist(Some(source_root)); @@ -1455,7 +1468,8 @@ pub(crate) fn handle_code_action_resolve( return Err(invalid_params_error("code action without data".to_owned()).into()); }; - let file_id = from_proto::file_id(&snap, ¶ms.code_action_params.text_document.uri)?; + let file_id = from_proto::file_id(&snap, ¶ms.code_action_params.text_document.uri)? + .expect("we never provide code actions for excluded files"); if snap.file_version(file_id) != params.version { return Err(invalid_params_error("stale code action".to_owned()).into()); } @@ -1551,7 +1565,7 @@ pub(crate) fn handle_code_lens( return Ok(Some(Vec::default())); } - let file_id = from_proto::file_id(&snap, ¶ms.text_document.uri)?; + let file_id = try_default!(from_proto::file_id(&snap, ¶ms.text_document.uri)?); let target_spec = TargetSpec::for_file(&snap, file_id)?; let annotations = snap.analysis.annotations( @@ -1613,7 +1627,8 @@ pub(crate) fn handle_document_highlight( params: lsp_types::DocumentHighlightParams, ) -> anyhow::Result>> { let _p = tracing::info_span!("handle_document_highlight").entered(); - let position = from_proto::file_position(&snap, params.text_document_position_params)?; + let position = + try_default!(from_proto::file_position(&snap, params.text_document_position_params)?); let line_index = snap.file_line_index(position.file_id)?; let source_root = snap.analysis.source_root_id(position.file_id)?; @@ -1639,12 +1654,12 @@ pub(crate) fn handle_ssr( params: lsp_ext::SsrParams, ) -> anyhow::Result { let _p = tracing::info_span!("handle_ssr").entered(); - let selections = params + let selections = try_default!(params .selections .iter() .map(|range| from_proto::file_range(&snap, ¶ms.position.text_document, *range)) - .collect::, _>>()?; - let position = from_proto::file_position(&snap, params.position)?; + .collect::>, _>>()?); + let position = try_default!(from_proto::file_position(&snap, params.position)?); let source_change = snap.analysis.structural_search_replace( ¶ms.query, params.parse_only, @@ -1660,11 +1675,11 @@ pub(crate) fn handle_inlay_hints( ) -> anyhow::Result>> { let _p = tracing::info_span!("handle_inlay_hints").entered(); let document_uri = ¶ms.text_document.uri; - let FileRange { file_id, range } = from_proto::file_range( + let FileRange { file_id, range } = try_default!(from_proto::file_range( &snap, &TextDocumentIdentifier::new(document_uri.to_owned()), params.range, - )?; + )?); let line_index = snap.file_line_index(file_id)?; let range = TextRange::new( range.start().min(line_index.index.len()), @@ -1744,7 +1759,8 @@ pub(crate) fn handle_call_hierarchy_prepare( params: CallHierarchyPrepareParams, ) -> anyhow::Result>> { let _p = tracing::info_span!("handle_call_hierarchy_prepare").entered(); - let position = from_proto::file_position(&snap, params.text_document_position_params)?; + let position = + try_default!(from_proto::file_position(&snap, params.text_document_position_params)?); let nav_info = match snap.analysis.call_hierarchy(position)? { None => return Ok(None), @@ -1769,7 +1785,7 @@ pub(crate) fn handle_call_hierarchy_incoming( let item = params.item; let doc = TextDocumentIdentifier::new(item.uri); - let frange = from_proto::file_range(&snap, &doc, item.selection_range)?; + let frange = try_default!(from_proto::file_range(&snap, &doc, item.selection_range)?); let fpos = FilePosition { file_id: frange.file_id, offset: frange.range.start() }; let config = snap.config.call_hierarchy(); @@ -1807,7 +1823,7 @@ pub(crate) fn handle_call_hierarchy_outgoing( let item = params.item; let doc = TextDocumentIdentifier::new(item.uri); - let frange = from_proto::file_range(&snap, &doc, item.selection_range)?; + let frange = try_default!(from_proto::file_range(&snap, &doc, item.selection_range)?); let fpos = FilePosition { file_id: frange.file_id, offset: frange.range.start() }; let line_index = snap.file_line_index(fpos.file_id)?; @@ -1842,7 +1858,7 @@ pub(crate) fn handle_semantic_tokens_full( ) -> anyhow::Result> { let _p = tracing::info_span!("handle_semantic_tokens_full").entered(); - let file_id = from_proto::file_id(&snap, ¶ms.text_document.uri)?; + let file_id = try_default!(from_proto::file_id(&snap, ¶ms.text_document.uri)?); let text = snap.analysis.file_text(file_id)?; let line_index = snap.file_line_index(file_id)?; @@ -1872,7 +1888,7 @@ pub(crate) fn handle_semantic_tokens_full_delta( ) -> anyhow::Result> { let _p = tracing::info_span!("handle_semantic_tokens_full_delta").entered(); - let file_id = from_proto::file_id(&snap, ¶ms.text_document.uri)?; + let file_id = try_default!(from_proto::file_id(&snap, ¶ms.text_document.uri)?); let text = snap.analysis.file_text(file_id)?; let line_index = snap.file_line_index(file_id)?; @@ -1915,7 +1931,7 @@ pub(crate) fn handle_semantic_tokens_range( ) -> anyhow::Result> { let _p = tracing::info_span!("handle_semantic_tokens_range").entered(); - let frange = from_proto::file_range(&snap, ¶ms.text_document, params.range)?; + let frange = try_default!(from_proto::file_range(&snap, ¶ms.text_document, params.range)?); let text = snap.analysis.file_text(frange.file_id)?; let line_index = snap.file_line_index(frange.file_id)?; @@ -1940,7 +1956,7 @@ pub(crate) fn handle_open_docs( params: lsp_types::TextDocumentPositionParams, ) -> anyhow::Result { let _p = tracing::info_span!("handle_open_docs").entered(); - let position = from_proto::file_position(&snap, params)?; + let position = try_default!(from_proto::file_position(&snap, params)?); let ws_and_sysroot = snap.workspaces.iter().find_map(|ws| match &ws.kind { ProjectWorkspaceKind::Cargo { cargo, .. } @@ -1982,7 +1998,7 @@ pub(crate) fn handle_open_cargo_toml( params: lsp_ext::OpenCargoTomlParams, ) -> anyhow::Result> { let _p = tracing::info_span!("handle_open_cargo_toml").entered(); - let file_id = from_proto::file_id(&snap, ¶ms.text_document.uri)?; + let file_id = try_default!(from_proto::file_id(&snap, ¶ms.text_document.uri)?); let cargo_spec = match TargetSpec::for_file(&snap, file_id)? { Some(TargetSpec::Cargo(it)) => it, @@ -2000,8 +2016,8 @@ pub(crate) fn handle_move_item( params: lsp_ext::MoveItemParams, ) -> anyhow::Result> { let _p = tracing::info_span!("handle_move_item").entered(); - let file_id = from_proto::file_id(&snap, ¶ms.text_document.uri)?; - let range = from_proto::file_range(&snap, ¶ms.text_document, params.range)?; + let file_id = try_default!(from_proto::file_id(&snap, ¶ms.text_document.uri)?); + let range = try_default!(from_proto::file_range(&snap, ¶ms.text_document, params.range)?); let direction = match params.direction { lsp_ext::MoveItemDirection::Up => ide::Direction::Up, @@ -2022,7 +2038,7 @@ pub(crate) fn handle_view_recursive_memory_layout( params: lsp_types::TextDocumentPositionParams, ) -> anyhow::Result> { let _p = tracing::info_span!("handle_view_recursive_memory_layout").entered(); - let file_id = from_proto::file_id(&snap, ¶ms.text_document.uri)?; + let file_id = try_default!(from_proto::file_id(&snap, ¶ms.text_document.uri)?); let line_index = snap.file_line_index(file_id)?; let offset = from_proto::offset(&line_index, params.position)?; @@ -2210,7 +2226,7 @@ fn run_rustfmt( text_document: TextDocumentIdentifier, range: Option, ) -> anyhow::Result>> { - let file_id = from_proto::file_id(snap, &text_document.uri)?; + let file_id = try_default!(from_proto::file_id(snap, &text_document.uri)?); let file = snap.analysis.file_text(file_id)?; // Determine the edition of the crate the file belongs to (if there's multiple, we pick the @@ -2275,7 +2291,7 @@ fn run_rustfmt( .into()); } - let frange = from_proto::file_range(snap, &text_document, range)?; + let frange = try_default!(from_proto::file_range(snap, &text_document, range)?); let start_line = line_index.index.line_col(frange.range.start()).line; let end_line = line_index.index.line_col(frange.range.end()).line; @@ -2416,15 +2432,15 @@ pub(crate) fn internal_testing_fetch_config( state: GlobalStateSnapshot, params: InternalTestingFetchConfigParams, ) -> anyhow::Result> { - let source_root = params - .text_document - .map(|it| { + let source_root = match params.text_document { + Some(it) => Some( state .analysis - .source_root_id(from_proto::file_id(&state, &it.uri)?) - .map_err(anyhow::Error::from) - }) - .transpose()?; + .source_root_id(try_default!(from_proto::file_id(&state, &it.uri)?)) + .map_err(anyhow::Error::from)?, + ), + None => None, + }; Ok(Some(match params.config { InternalTestingFetchConfigOption::AssistEmitMustUse => { InternalTestingFetchConfigResponse::AssistEmitMustUse( diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/integrated_benchmarks.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/integrated_benchmarks.rs index 5cdc51a1c1995..c6aa8ba170778 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/integrated_benchmarks.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/integrated_benchmarks.rs @@ -25,6 +25,14 @@ use vfs::{AbsPathBuf, VfsPath}; use load_cargo::{load_workspace_at, LoadCargoConfig, ProcMacroServerChoice}; +#[track_caller] +fn file_id(vfs: &vfs::Vfs, path: &VfsPath) -> vfs::FileId { + match vfs.file_id(path) { + Some((file_id, vfs::FileExcluded::No)) => file_id, + None | Some((_, vfs::FileExcluded::Yes)) => panic!("can't find virtual file for {path}"), + } +} + #[test] fn integrated_highlighting_benchmark() { if std::env::var("RUN_SLOW_BENCHES").is_err() { @@ -62,7 +70,7 @@ fn integrated_highlighting_benchmark() { let file_id = { let file = workspace_to_load.join(file); let path = VfsPath::from(AbsPathBuf::assert(file)); - vfs.file_id(&path).unwrap_or_else(|| panic!("can't find virtual file for {path}")) + file_id(&vfs, &path) }; { @@ -130,7 +138,7 @@ fn integrated_completion_benchmark() { let file_id = { let file = workspace_to_load.join(file); let path = VfsPath::from(AbsPathBuf::assert(file)); - vfs.file_id(&path).unwrap_or_else(|| panic!("can't find virtual file for {path}")) + file_id(&vfs, &path) }; // kick off parsing and index population @@ -324,7 +332,7 @@ fn integrated_diagnostics_benchmark() { let file_id = { let file = workspace_to_load.join(file); let path = VfsPath::from(AbsPathBuf::assert(file)); - vfs.file_id(&path).unwrap_or_else(|| panic!("can't find virtual file for {path}")) + file_id(&vfs, &path) }; let diagnostics_config = DiagnosticsConfig { diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/lib.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/lib.rs index 1221f7c7012e7..27d6225cdb7e2 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/lib.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/lib.rs @@ -173,3 +173,14 @@ fn completion_item_hash(item: &CompletionItem, is_ref_completion: bool) -> [u8; hasher.finalize() } + +#[doc(hidden)] +macro_rules! try_default_ { + ($it:expr $(,)?) => { + match $it { + Some(it) => it, + None => return Ok(Default::default()), + } + }; +} +pub(crate) use try_default_ as try_default; diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/lsp/from_proto.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/lsp/from_proto.rs index 47e9961cf13fc..6375a1a054b7d 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/lsp/from_proto.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/lsp/from_proto.rs @@ -9,7 +9,7 @@ use vfs::AbsPathBuf; use crate::{ global_state::GlobalStateSnapshot, line_index::{LineIndex, PositionEncoding}, - lsp_ext, + lsp_ext, try_default, }; pub(crate) fn abs_path(url: &lsp_types::Url) -> anyhow::Result { @@ -61,37 +61,44 @@ pub(crate) fn text_range( } } -pub(crate) fn file_id(snap: &GlobalStateSnapshot, url: &lsp_types::Url) -> anyhow::Result { +/// Returns `None` if the file was excluded. +pub(crate) fn file_id( + snap: &GlobalStateSnapshot, + url: &lsp_types::Url, +) -> anyhow::Result> { snap.url_to_file_id(url) } +/// Returns `None` if the file was excluded. pub(crate) fn file_position( snap: &GlobalStateSnapshot, tdpp: lsp_types::TextDocumentPositionParams, -) -> anyhow::Result { - let file_id = file_id(snap, &tdpp.text_document.uri)?; +) -> anyhow::Result> { + let file_id = try_default!(file_id(snap, &tdpp.text_document.uri)?); let line_index = snap.file_line_index(file_id)?; let offset = offset(&line_index, tdpp.position)?; - Ok(FilePosition { file_id, offset }) + Ok(Some(FilePosition { file_id, offset })) } +/// Returns `None` if the file was excluded. pub(crate) fn file_range( snap: &GlobalStateSnapshot, text_document_identifier: &lsp_types::TextDocumentIdentifier, range: lsp_types::Range, -) -> anyhow::Result { +) -> anyhow::Result> { file_range_uri(snap, &text_document_identifier.uri, range) } +/// Returns `None` if the file was excluded. pub(crate) fn file_range_uri( snap: &GlobalStateSnapshot, document: &lsp_types::Url, range: lsp_types::Range, -) -> anyhow::Result { - let file_id = file_id(snap, document)?; +) -> anyhow::Result> { + let file_id = try_default!(file_id(snap, document)?); let line_index = snap.file_line_index(file_id)?; let range = text_range(&line_index, range)?; - Ok(FileRange { file_id, range }) + Ok(Some(FileRange { file_id, range })) } pub(crate) fn assist_kind(kind: lsp_types::CodeActionKind) -> Option { @@ -108,6 +115,7 @@ pub(crate) fn assist_kind(kind: lsp_types::CodeActionKind) -> Option Some(assist_kind) } +/// Returns `None` if the file was excluded. pub(crate) fn annotation( snap: &GlobalStateSnapshot, range: lsp_types::Range, @@ -121,7 +129,7 @@ pub(crate) fn annotation( return Ok(None); } let pos @ FilePosition { file_id, .. } = - file_position(snap, params.text_document_position_params)?; + try_default!(file_position(snap, params.text_document_position_params)?); let line_index = snap.file_line_index(file_id)?; Ok(Annotation { @@ -133,7 +141,7 @@ pub(crate) fn annotation( if snap.url_file_version(¶ms.text_document.uri) != Some(data.version) { return Ok(None); } - let pos @ FilePosition { file_id, .. } = file_position(snap, params)?; + let pos @ FilePosition { file_id, .. } = try_default!(file_position(snap, params)?); let line_index = snap.file_line_index(file_id)?; Ok(Annotation { diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/main_loop.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/main_loop.rs index ebc65373b5226..f5d9469f2622f 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/main_loop.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/main_loop.rs @@ -27,7 +27,10 @@ use crate::{ FetchWorkspaceResponse, GlobalState, }, hack_recover_crate_name, - handlers::dispatch::{NotificationDispatcher, RequestDispatcher}, + handlers::{ + dispatch::{NotificationDispatcher, RequestDispatcher}, + request::empty_diagnostic_report, + }, lsp::{ from_proto, to_proto, utils::{notification_is, Progress}, @@ -548,6 +551,9 @@ impl GlobalState { self.mem_docs .iter() .map(|path| vfs.file_id(path).unwrap()) + .filter_map(|(file_id, excluded)| { + (excluded == vfs::FileExcluded::No).then_some(file_id) + }) .filter(|&file_id| { let source_root = db.file_source_root(file_id); // Only publish diagnostics for files in the workspace, not from crates.io deps @@ -632,6 +638,9 @@ impl GlobalState { .mem_docs .iter() .map(|path| self.vfs.read().0.file_id(path).unwrap()) + .filter_map(|(file_id, excluded)| { + (excluded == vfs::FileExcluded::No).then_some(file_id) + }) .filter(|&file_id| { let source_root = db.file_source_root(file_id); !db.source_root(source_root).is_library @@ -879,7 +888,10 @@ impl GlobalState { self.task_pool.handle.spawn_with_sender(ThreadIntent::Worker, move |sender| { let _p = tracing::info_span!("GlobalState::check_if_indexed").entered(); tracing::debug!(?uri, "handling uri"); - let id = from_proto::file_id(&snap, &uri).expect("unable to get FileId"); + let Some(id) = from_proto::file_id(&snap, &uri).expect("unable to get FileId") + else { + return; + }; if let Ok(crates) = &snap.analysis.crates_for(id) { if crates.is_empty() { if snap.config.discover_workspace_config().is_some() { @@ -987,13 +999,14 @@ impl GlobalState { ); for diag in diagnostics { match url_to_file_id(&self.vfs.read().0, &diag.url) { - Ok(file_id) => self.diagnostics.add_check_diagnostic( + Ok(Some(file_id)) => self.diagnostics.add_check_diagnostic( id, &package_id, file_id, diag.diagnostic, diag.fix, ), + Ok(None) => {} Err(err) => { error!( "flycheck {id}: File with cargo diagnostic not found in VFS: {}", @@ -1115,17 +1128,7 @@ impl GlobalState { .on_latency_sensitive::(handlers::handle_semantic_tokens_range) // FIXME: Some of these NO_RETRY could be retries if the file they are interested didn't change. // All other request handlers - .on_with_vfs_default::(handlers::handle_document_diagnostics, || lsp_types::DocumentDiagnosticReportResult::Report( - lsp_types::DocumentDiagnosticReport::Full( - lsp_types::RelatedFullDocumentDiagnosticReport { - related_documents: None, - full_document_diagnostic_report: lsp_types::FullDocumentDiagnosticReport { - result_id: Some("rust-analyzer".to_owned()), - items: vec![], - }, - }, - ), - ), || lsp_server::ResponseError { + .on_with_vfs_default::(handlers::handle_document_diagnostics, empty_diagnostic_report, || lsp_server::ResponseError { code: lsp_server::ErrorCode::ServerCancelled as i32, message: "server cancelled the request".to_owned(), data: serde_json::to_value(lsp_types::DiagnosticServerCancellationData { diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/reload.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/reload.rs index d18e577047749..e3c003dbf8b1e 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/reload.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/reload.rs @@ -705,7 +705,9 @@ impl GlobalState { let load = |path: &AbsPath| { let vfs_path = vfs::VfsPath::from(path.to_path_buf()); self.crate_graph_file_dependencies.insert(vfs_path.clone()); - vfs.file_id(&vfs_path) + vfs.file_id(&vfs_path).and_then(|(file_id, excluded)| { + (excluded == vfs::FileExcluded::No).then_some(file_id) + }) }; ws_to_crate_graph(&self.workspaces, self.config.extra_env(None), load) diff --git a/src/tools/rust-analyzer/crates/vfs/src/lib.rs b/src/tools/rust-analyzer/crates/vfs/src/lib.rs index a26444e9ea230..3feca512e55a5 100644 --- a/src/tools/rust-analyzer/crates/vfs/src/lib.rs +++ b/src/tools/rust-analyzer/crates/vfs/src/lib.rs @@ -100,6 +100,9 @@ pub enum FileState { Exists(u64), /// The file is deleted. Deleted, + /// The file was specifically excluded by the user. We still include excluded files + /// when they're opened (without their contents). + Excluded, } /// Changed file in the [`Vfs`]. @@ -164,10 +167,22 @@ pub enum ChangeKind { Delete, } +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +pub enum FileExcluded { + Yes, + No, +} + impl Vfs { /// Id of the given path if it exists in the `Vfs` and is not deleted. - pub fn file_id(&self, path: &VfsPath) -> Option { - self.interner.get(path).filter(|&it| matches!(self.get(it), FileState::Exists(_))) + pub fn file_id(&self, path: &VfsPath) -> Option<(FileId, FileExcluded)> { + let file_id = self.interner.get(path)?; + let file_state = self.get(file_id); + match file_state { + FileState::Exists(_) => Some((file_id, FileExcluded::No)), + FileState::Deleted => None, + FileState::Excluded => Some((file_id, FileExcluded::Yes)), + } } /// File path corresponding to the given `file_id`. @@ -216,6 +231,7 @@ impl Vfs { } Change::Modify(v, new_hash) } + (FileState::Excluded, _) => return false, }; let mut set_data = |change_kind| { @@ -297,6 +313,13 @@ impl Vfs { fn get(&self, file_id: FileId) -> FileState { self.data[file_id.0 as usize] } + + /// We cannot ignore excluded files, because this will lead to errors when the client + /// requests semantic information for them, so we instead mark them specially. + pub fn insert_excluded_file(&mut self, path: VfsPath) { + let file_id = self.alloc_file_id(path); + self.data[file_id.0 as usize] = FileState::Excluded; + } } impl fmt::Debug for Vfs { From 720101002876ad6043735004b9ae20600a989fe8 Mon Sep 17 00:00:00 2001 From: Shoyu Vanilla Date: Sat, 8 Feb 2025 02:38:41 +0900 Subject: [PATCH 09/75] fix: Apply adjustments to proper expr when invoking `CoerceMany` --- .../rust-analyzer/crates/hir-ty/src/infer.rs | 24 +++++++++++- .../crates/hir-ty/src/infer/coerce.rs | 38 ++++++++++++++++--- .../crates/hir-ty/src/mir/eval/tests.rs | 33 ++++++++++++++++ .../crates/hir-ty/src/tests/coercion.rs | 3 +- 4 files changed, 89 insertions(+), 9 deletions(-) diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/infer.rs b/src/tools/rust-analyzer/crates/hir-ty/src/infer.rs index 617ebba8811e2..9f20117bf14fc 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/infer.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/infer.rs @@ -1239,7 +1239,29 @@ impl<'a> InferenceContext<'a> { } fn write_expr_adj(&mut self, expr: ExprId, adjustments: Vec) { - self.result.expr_adjustments.insert(expr, adjustments); + if adjustments.is_empty() { + return; + } + match self.result.expr_adjustments.entry(expr) { + std::collections::hash_map::Entry::Occupied(mut entry) => { + match (&mut entry.get_mut()[..], &adjustments[..]) { + ( + [Adjustment { kind: Adjust::NeverToAny, target }], + [.., Adjustment { target: new_target, .. }], + ) => { + // NeverToAny coercion can target any type, so instead of adding a new + // adjustment on top we can change the target. + *target = new_target.clone(); + } + _ => { + *entry.get_mut() = adjustments; + } + } + } + std::collections::hash_map::Entry::Vacant(entry) => { + entry.insert(adjustments); + } + } } fn write_method_resolution(&mut self, expr: ExprId, func: FunctionId, subst: Substitution) { diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/infer/coerce.rs b/src/tools/rust-analyzer/crates/hir-ty/src/infer/coerce.rs index d40816ba8ced2..b490a31f68fae 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/infer/coerce.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/infer/coerce.rs @@ -163,10 +163,27 @@ impl CoerceMany { // type is a type variable and the new one is `!`, trying it the other // way around first would mean we make the type variable `!`, instead of // just marking it as possibly diverging. - if let Ok(res) = ctx.coerce(expr, &expr_ty, &self.merged_ty(), CoerceNever::Yes) { - self.final_ty = Some(res); - } else if let Ok(res) = ctx.coerce(expr, &self.merged_ty(), &expr_ty, CoerceNever::Yes) { + // + // - [Comment from rustc](https://github.com/rust-lang/rust/blob/5ff18d0eaefd1bd9ab8ec33dab2404a44e7631ed/compiler/rustc_hir_typeck/src/coercion.rs#L1334-L1335) + // First try to coerce the new expression to the type of the previous ones, + // but only if the new expression has no coercion already applied to it. + if expr.is_none_or(|expr| !ctx.result.expr_adjustments.contains_key(&expr)) { + if let Ok(res) = ctx.coerce(expr, &expr_ty, &self.merged_ty(), CoerceNever::Yes) { + self.final_ty = Some(res); + if let Some(expr) = expr { + self.expressions.push(expr); + } + return; + } + } + + if let Ok((adjustments, res)) = + ctx.coerce_inner(&self.merged_ty(), &expr_ty, CoerceNever::Yes) + { self.final_ty = Some(res); + for &e in &self.expressions { + ctx.write_expr_adj(e, adjustments.clone()); + } } else { match cause { CoercionCause::Expr(id) => { @@ -244,14 +261,23 @@ impl InferenceContext<'_> { // between places and values. coerce_never: CoerceNever, ) -> Result { - let from_ty = self.resolve_ty_shallow(from_ty); - let to_ty = self.resolve_ty_shallow(to_ty); - let (adjustments, ty) = self.table.coerce(&from_ty, &to_ty, coerce_never)?; + let (adjustments, ty) = self.coerce_inner(from_ty, to_ty, coerce_never)?; if let Some(expr) = expr { self.write_expr_adj(expr, adjustments); } Ok(ty) } + + fn coerce_inner( + &mut self, + from_ty: &Ty, + to_ty: &Ty, + coerce_never: CoerceNever, + ) -> Result<(Vec, Ty), TypeError> { + let from_ty = self.resolve_ty_shallow(from_ty); + let to_ty = self.resolve_ty_shallow(to_ty); + self.table.coerce(&from_ty, &to_ty, coerce_never) + } } impl InferenceTable<'_> { diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/mir/eval/tests.rs b/src/tools/rust-analyzer/crates/hir-ty/src/mir/eval/tests.rs index f1e86daea233a..9625ae5f88ed9 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/mir/eval/tests.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/mir/eval/tests.rs @@ -912,3 +912,36 @@ fn main() { "", ); } + +#[test] +fn regression_19021() { + check_pass( + r#" +//- minicore: deref +use core::ops::Deref; + +#[lang = "owned_box"] +struct Box(T); + +impl Deref for Box { + type Target = T; + + fn deref(&self) -> &Self::Target { + &self.0 + } +} + +struct Foo; + +fn main() { + let x = Box(Foo); + let y = &Foo; + + || match x { + ref x => x, + _ => y, + }; +} +"#, + ); +} diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/tests/coercion.rs b/src/tools/rust-analyzer/crates/hir-ty/src/tests/coercion.rs index 7992f1feeeb1d..7e7c1f835c787 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/tests/coercion.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/tests/coercion.rs @@ -185,11 +185,10 @@ fn test() { let t = &mut 1; let x = match 1 { 1 => t as *mut i32, + //^^^^^^^^^^^^^ adjustments: Pointer(MutToConstPointer) 2 => t as &i32, //^^^^^^^^^ expected *mut i32, got &'? i32 _ => t as *const i32, - // ^^^^^^^^^^^^^^^ adjustments: Pointer(MutToConstPointer) - }; x; //^ type: *const i32 From 01794a4973c6e9b41af78cebd2f8adf9cdb36f9f Mon Sep 17 00:00:00 2001 From: Julian Eager Date: Sat, 8 Feb 2025 01:39:07 +0800 Subject: [PATCH 10/75] simplify panic_context --- .../crates/stdx/src/panic_context.rs | 40 +++++++++---------- 1 file changed, 18 insertions(+), 22 deletions(-) diff --git a/src/tools/rust-analyzer/crates/stdx/src/panic_context.rs b/src/tools/rust-analyzer/crates/stdx/src/panic_context.rs index 4ec74c0742aa4..a35d50b78dfb6 100644 --- a/src/tools/rust-analyzer/crates/stdx/src/panic_context.rs +++ b/src/tools/rust-analyzer/crates/stdx/src/panic_context.rs @@ -1,28 +1,25 @@ //! A micro-crate to enhance panic messages with context info. -//! -//! FIXME: upstream to ? use std::{cell::RefCell, panic, sync::Once}; -pub fn enter(context: String) -> PanicContext { - static ONCE: Once = Once::new(); - ONCE.call_once(PanicContext::init); - - with_ctx(|ctx| ctx.push(context)); - PanicContext { _priv: () } -} - +/// Dummy for leveraging RAII cleanup to pop frames. #[must_use] pub struct PanicContext { + // prevent arbitrary construction _priv: (), } -impl PanicContext { +impl Drop for PanicContext { + fn drop(&mut self) { + with_ctx(|ctx| assert!(ctx.pop().is_some())); + } +} + +pub fn enter(frame: String) -> PanicContext { #[allow(clippy::print_stderr)] - fn init() { + fn set_hook() { let default_hook = panic::take_hook(); - #[allow(deprecated)] - let hook = move |panic_info: &panic::PanicInfo<'_>| { + panic::set_hook(Box::new(move |panic_info| { with_ctx(|ctx| { if !ctx.is_empty() { eprintln!("Panic context:"); @@ -30,17 +27,16 @@ impl PanicContext { eprintln!("> {frame}\n"); } } - default_hook(panic_info); }); - }; - panic::set_hook(Box::new(hook)); + default_hook(panic_info); + })); } -} -impl Drop for PanicContext { - fn drop(&mut self) { - with_ctx(|ctx| assert!(ctx.pop().is_some())); - } + static SET_HOOK: Once = Once::new(); + SET_HOOK.call_once(set_hook); + + with_ctx(|ctx| ctx.push(frame)); + PanicContext { _priv: () } } fn with_ctx(f: impl FnOnce(&mut Vec)) { From 050c63a054bf29dbfc6161fb1ec12d89a319a87e Mon Sep 17 00:00:00 2001 From: Ali Bektas Date: Sun, 19 Jan 2025 23:58:49 +0100 Subject: [PATCH 11/75] Lower ast::Ident to hir::Path when lowering RangePats --- .../crates/hir-def/src/expr_store/lower.rs | 35 ++++---- .../crates/hir-def/src/expr_store/pretty.rs | 12 +-- .../crates/hir-def/src/expr_store/tests.rs | 88 ++++++++++++++++++- .../rust-analyzer/crates/hir-def/src/hir.rs | 14 +++ .../crates/hir-ty/src/mir/lower.rs | 29 +++--- .../hir-ty/src/mir/lower/pattern_matching.rs | 10 +-- .../rust-analyzer/crates/hir/src/semantics.rs | 1 + .../crates/hir/src/semantics/source_to_def.rs | 2 +- .../rust-analyzer/crates/ide-db/src/defs.rs | 6 +- 9 files changed, 139 insertions(+), 58 deletions(-) diff --git a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower.rs b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower.rs index 3f3beb21858cc..e4fcf949d9144 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower.rs @@ -1795,24 +1795,27 @@ impl ExprCollector<'_> { p.and_then(|it| { let ptr = PatPtr::new(&it); match &it { - ast::Pat::LiteralPat(it) => { - // Some(Box::new(LiteralOrConst::Literal(pat_literal_to_hir(it)?.0))) - Some(self.alloc_expr_from_pat( - Expr::Literal(pat_literal_to_hir(it)?.0), - ptr, - )) - } - ast::Pat::IdentPat(_) => Some(self.missing_expr()), - ast::Pat::PathPat(p) => { - if let Some(path) = p.path() { - if let Some(parsed) = self.parse_path(path) { - return Some( - self.alloc_expr_from_pat(Expr::Path(parsed), ptr), - ); - } + ast::Pat::LiteralPat(it) => Some(self.alloc_expr_from_pat( + Expr::Literal(pat_literal_to_hir(it)?.0), + ptr, + )), + ast::Pat::IdentPat(ident) => { + if ident.is_simple_ident() { + return ident + .name() + .and_then(|name| Some(name.as_name())) + .and_then(|hir_name| Some(Path::from(hir_name))) + .and_then(|path| { + Some(self.alloc_expr_from_pat(Expr::Path(path), ptr)) + }); } - Some(self.missing_expr()) + + None } + ast::Pat::PathPat(p) => p + .path() + .and_then(|path| self.parse_path(path)) + .map(|parsed| self.alloc_expr_from_pat(Expr::Path(parsed), ptr)), _ => None, } }) diff --git a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/pretty.rs b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/pretty.rs index c28cfb24529c4..82ad756dc2c6a 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/pretty.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/pretty.rs @@ -6,10 +6,7 @@ use itertools::Itertools; use span::Edition; use crate::{ - hir::{ - Array, BindingAnnotation, CaptureBy, ClosureKind, Literal, LiteralOrConst, Movability, - Statement, - }, + hir::{Array, BindingAnnotation, CaptureBy, ClosureKind, Literal, Movability, Statement}, pretty::{print_generic_args, print_path, print_type_ref}, }; @@ -757,13 +754,6 @@ impl Printer<'_> { } } - fn print_literal_or_const(&mut self, literal_or_const: &LiteralOrConst) { - match literal_or_const { - LiteralOrConst::Literal(l) => self.print_literal(l), - LiteralOrConst::Const(c) => self.print_pat(*c), - } - } - fn print_literal(&mut self, literal: &Literal) { match literal { Literal::String(it) => w!(self, "{:?}", it), diff --git a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/tests.rs b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/tests.rs index 5ce9a67f9b6c7..893645604418e 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/tests.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/tests.rs @@ -1,10 +1,12 @@ mod block; +use base_db::Upcast; use expect_test::{expect, Expect}; use la_arena::RawIdx; use test_fixture::WithFixture; +use tracing::Instrument; -use crate::{test_db::TestDB, ModuleDefId}; +use crate::{db::InternDatabase, test_db::TestDB, ModuleDefId}; use super::*; @@ -446,7 +448,6 @@ fn foo() { ); } -#[test] fn skip_skips_body() { let (db, body, owner) = lower( r#" @@ -461,7 +462,7 @@ async fn foo(a: (), b: i32) -> u32 { .assert_eq(&printed); } -fn abc() { +fn test1() { let (db, body, owner) = lower( r#" pub const L: i32 = 6; @@ -470,8 +471,46 @@ mod x { } const fn f(x: i32) -> i32 { match x { - -1..=5 => x * 10, L..=x::R => x * 100, + -1..=5 => x * 10, + _ => x, + } +}"#, + ); + + let pat = body + .pats + .iter() + .find_map(|pat| { + if let Pat::Range { .. } = pat.1 { + return Some(pat.1); + } + + None + }) + .unwrap(); + + match pat { + Pat::Range { start, end } => { + dbg!(&body.exprs[start.unwrap()]); + dbg!(&body.exprs[end.unwrap()]); + } + _ => {} + } +} + +#[test] +fn test2() { + let (db, body, owner) = lower( + r#" +pub const L: i32 = 6; +mod x { + pub const R: i32 = 100; +} +const fn f(x: i32) -> i32 { + match x { + -1..=5 => x * 10, + ::std::i32::MIN..=x::R => x * 100, _ => x, } }"#, @@ -503,3 +542,44 @@ const fn f(x: i32) -> i32 { } } } + +#[test] +fn test3() { + let (db, body, owner) = lower( + r#" +const A: u32 = 0; + +fn bar(v: u32) { + match v { + 0..=A => {} + _ => {} + } +}"#, + ); + + for (pat_id, pat) in body.pats.iter() { + match pat { + Pat::Range { start, end } => { + let pretty = body.pretty_print_pat(&db, owner, pat_id, false, Edition::Edition2021); + eprintln!("RANGE {}", pretty); + + if let Some(start) = start { + eprintln!("START"); + let expr = body.exprs[*start].clone(); + dbg!(expr); + } else { + eprintln!("START is None"); + } + + if let Some(end) = end { + eprintln!("END"); + let expr = body.exprs[*end].clone(); + dbg!(expr); + } else { + eprintln!("END is None"); + } + } + _ => {} + } + } +} diff --git a/src/tools/rust-analyzer/crates/hir-def/src/hir.rs b/src/tools/rust-analyzer/crates/hir-def/src/hir.rs index a964512beb2d3..6aca610a93875 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/hir.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/hir.rs @@ -55,12 +55,26 @@ impl ExprOrPatId { } } + pub fn is_expr(&self) -> bool { + match self { + Self::ExprId(_) => true, + _ => false, + } + } + pub fn as_pat(self) -> Option { match self { Self::PatId(v) => Some(v), _ => None, } } + + pub fn is_pat(&self) -> bool { + match self { + Self::PatId(_) => true, + _ => false, + } + } } stdx::impl_from!(ExprId, PatId for ExprOrPatId); diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/mir/lower.rs b/src/tools/rust-analyzer/crates/hir-ty/src/mir/lower.rs index cc6ed122af4bb..69b3b9c02a0cf 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/mir/lower.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/mir/lower.rs @@ -8,8 +8,8 @@ use hir_def::{ data::adt::{StructKind, VariantData}, expr_store::{Body, HygieneId}, hir::{ - ArithOp, Array, BinaryOp, BindingAnnotation, BindingId, ExprId, LabelId, Literal, - LiteralOrConst, MatchArm, Pat, PatId, RecordFieldPat, RecordLitField, + ArithOp, Array, BinaryOp, BindingAnnotation, BindingId, ExprId, LabelId, Literal, MatchArm, + Pat, PatId, RecordFieldPat, RecordLitField, }, lang_item::{LangItem, LangItemTarget}, path::Path, @@ -1358,20 +1358,10 @@ impl<'ctx> MirLowerCtx<'ctx> { Ok(()) } - fn lower_literal_or_const_to_operand( - &mut self, - ty: Ty, - loc: &LiteralOrConst, - ) -> Result { - match loc { - LiteralOrConst::Literal(l) => self.lower_literal_to_operand(ty, l), - LiteralOrConst::Const(c) => { - let c = match &self.body.pats[*c] { - Pat::Path(p) => p, - _ => not_supported!( - "only `char` and numeric types are allowed in range patterns" - ), - }; + fn lower_literal_or_const_to_operand(&mut self, ty: Ty, loc: &ExprId) -> Result { + match dbg!(&self.body.exprs[*loc]) { + Expr::Literal(l) => self.lower_literal_to_operand(ty, l), + Expr::Path(c) => { let edition = self.edition(); let unresolved_name = || MirLowerError::unresolved_path(self.db, c, edition, &self.body.types); @@ -1379,7 +1369,7 @@ impl<'ctx> MirLowerCtx<'ctx> { .resolver .resolve_path_in_value_ns(self.db.upcast(), c, HygieneId::ROOT) .ok_or_else(unresolved_name)?; - match pr { + dbg!(match dbg!(pr) { ResolveValueResult::ValueNs(v, _) => { if let ValueNs::ConstId(c) = v { self.lower_const_to_operand(Substitution::empty(Interner), c.into(), ty) @@ -1390,7 +1380,10 @@ impl<'ctx> MirLowerCtx<'ctx> { ResolveValueResult::Partial(_, _, _) => { not_supported!("associated constants in range pattern") } - } + }) + } + _ => { + not_supported!("only `char` and numeric types are allowed in range patterns"); } } } diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/mir/lower/pattern_matching.rs b/src/tools/rust-analyzer/crates/hir-ty/src/mir/lower/pattern_matching.rs index d78d15288adc1..289175feefb18 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/mir/lower/pattern_matching.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/mir/lower/pattern_matching.rs @@ -1,6 +1,6 @@ //! MIR lowering for patterns -use hir_def::{hir::LiteralOrConst, AssocItemId}; +use hir_def::{hir::ExprId, AssocItemId}; use crate::{ mir::{ @@ -207,7 +207,7 @@ impl MirLowerCtx<'_> { )? } Pat::Range { start, end } => { - let mut add_check = |l: &LiteralOrConst, binop| -> Result<()> { + let mut add_check = |l: &ExprId, binop| -> Result<()> { let lv = self.lower_literal_or_const_to_operand(self.infer[pattern].clone(), l)?; let else_target = *current_else.get_or_insert_with(|| self.new_basic_block()); @@ -234,12 +234,10 @@ impl MirLowerCtx<'_> { }; if mode == MatchingMode::Check { if let Some(start) = start { - // TODO - // add_check(start, BinOp::Le)?; + add_check(start, BinOp::Le)?; } if let Some(end) = end { - // TODO - // add_check(end, BinOp::Ge)?; + add_check(end, BinOp::Ge)?; } } (current, current_else) diff --git a/src/tools/rust-analyzer/crates/hir/src/semantics.rs b/src/tools/rust-analyzer/crates/hir/src/semantics.rs index 882a27182f015..90c6e7e7b3b43 100644 --- a/src/tools/rust-analyzer/crates/hir/src/semantics.rs +++ b/src/tools/rust-analyzer/crates/hir/src/semantics.rs @@ -1640,6 +1640,7 @@ impl<'db> SemanticsImpl<'db> { } pub fn to_def(&self, src: &T) -> Option { + dbg!(std::any::type_name::()); let src = self.find_file(src.syntax()).with_value(src); T::to_def(self, src) } diff --git a/src/tools/rust-analyzer/crates/hir/src/semantics/source_to_def.rs b/src/tools/rust-analyzer/crates/hir/src/semantics/source_to_def.rs index 29d3736bae72c..227a60bee242f 100644 --- a/src/tools/rust-analyzer/crates/hir/src/semantics/source_to_def.rs +++ b/src/tools/rust-analyzer/crates/hir/src/semantics/source_to_def.rs @@ -347,7 +347,7 @@ impl SourceToDefCtx<'_, '_> { &mut self, src: InFile<&ast::IdentPat>, ) -> Option<(DefWithBodyId, BindingId)> { - let container = self.find_pat_or_label_container(src.syntax_ref())?; + let container = dbg!(self.find_pat_or_label_container(src.syntax_ref()))?; let (body, source_map) = self.db.body_with_source_map(container); let src = src.cloned().map(ast::Pat::from); let pat_id = source_map.node_pat(src.as_ref())?; diff --git a/src/tools/rust-analyzer/crates/ide-db/src/defs.rs b/src/tools/rust-analyzer/crates/ide-db/src/defs.rs index bad536080567f..c45cb4294f0d1 100644 --- a/src/tools/rust-analyzer/crates/ide-db/src/defs.rs +++ b/src/tools/rust-analyzer/crates/ide-db/src/defs.rs @@ -20,6 +20,7 @@ use hir::{ }; use span::Edition; use stdx::{format_to, impl_from}; +use syntax::ToSmolStr; use syntax::{ ast::{self, AstNode}, match_ast, SyntaxKind, SyntaxNode, SyntaxToken, @@ -365,6 +366,7 @@ impl IdentClass { sema: &Semantics<'_, RootDatabase>, node: &SyntaxNode, ) -> Option { + dbg!(&node.to_smolstr()); match_ast! { match node { ast::Name(name) => NameClass::classify(sema, &name).map(IdentClass::NameClass), @@ -521,7 +523,7 @@ impl NameClass { let definition = match_ast! { match parent { ast::Item(it) => classify_item(sema, it)?, - ast::IdentPat(it) => return classify_ident_pat(sema, it), + ast::IdentPat(it) => return dbg!(classify_ident_pat(sema, it)), ast::Rename(it) => classify_rename(sema, it)?, ast::SelfParam(it) => Definition::Local(sema.to_def(&it)?), ast::RecordField(it) => Definition::Field(sema.to_def(&it)?), @@ -574,7 +576,7 @@ impl NameClass { return Some(NameClass::ConstReference(Definition::from(def))); } - let local = sema.to_def(&ident_pat)?; + let local = dbg!(sema.to_def(&ident_pat))?; let pat_parent = ident_pat.syntax().parent(); if let Some(record_pat_field) = pat_parent.and_then(ast::RecordPatField::cast) { if record_pat_field.name_ref().is_none() { From e402c8cd7e2a0f108f10a9718c28f76afe06d6e6 Mon Sep 17 00:00:00 2001 From: Ali Bektas Date: Tue, 21 Jan 2025 18:53:37 +0100 Subject: [PATCH 12/75] make SourceAnalyzer::pat_id return ExprOrPatId Not all patterns are mapped to Pats. As such, it was necessary to change the ret type Option to Option --- .../crates/hir-def/src/expr_store/tests.rs | 5 +-- .../crates/hir/src/source_analyzer.rs | 32 ++++++++++--------- 2 files changed, 18 insertions(+), 19 deletions(-) diff --git a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/tests.rs b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/tests.rs index 893645604418e..73eed744715d5 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/tests.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/tests.rs @@ -1,12 +1,9 @@ mod block; -use base_db::Upcast; +use crate::{test_db::TestDB, ModuleDefId}; use expect_test::{expect, Expect}; use la_arena::RawIdx; use test_fixture::WithFixture; -use tracing::Instrument; - -use crate::{db::InternDatabase, test_db::TestDB, ModuleDefId}; use super::*; diff --git a/src/tools/rust-analyzer/crates/hir/src/source_analyzer.rs b/src/tools/rust-analyzer/crates/hir/src/source_analyzer.rs index cf756c679750c..06fcebad65d1a 100644 --- a/src/tools/rust-analyzer/crates/hir/src/source_analyzer.rs +++ b/src/tools/rust-analyzer/crates/hir/src/source_analyzer.rs @@ -18,7 +18,7 @@ use hir_def::{ scope::{ExprScopes, ScopeId}, Body, BodySourceMap, HygieneId, }, - hir::{BindingId, Expr, ExprId, ExprOrPatId, Pat, PatId}, + hir::{BindingId, Expr, ExprId, ExprOrPatId, Pat}, lang_item::LangItem, lower::LowerCtx, nameres::MacroSubNs, @@ -139,15 +139,15 @@ impl SourceAnalyzer { sm.node_expr(src.as_ref()) } - fn pat_id(&self, pat: &ast::Pat) -> Option { + fn pat_id(&self, pat: &ast::Pat) -> Option { // FIXME: macros, see `expr_id` let src = InFile { file_id: self.file_id, value: pat }; - self.body_source_map()?.node_pat(src).and_then(ExprOrPatId::as_pat) + self.body_source_map()?.node_pat(src) } fn binding_id_of_pat(&self, pat: &ast::IdentPat) -> Option { let pat_id = self.pat_id(&pat.clone().into())?; - if let Pat::Bind { id, .. } = self.body()?.pats[pat_id] { + if let Pat::Bind { id, .. } = self.body()?.pats[pat_id.as_pat()?] { Some(id) } else { None @@ -212,8 +212,10 @@ impl SourceAnalyzer { ) -> Option<(Type, Option)> { let pat_id = self.pat_id(pat)?; let infer = self.infer.as_ref()?; - let coerced = - infer.pat_adjustments.get(&pat_id).and_then(|adjusts| adjusts.last().cloned()); + let coerced = infer + .pat_adjustments + .get(&pat_id.as_pat()?) + .and_then(|adjusts| adjusts.last().cloned()); let ty = infer[pat_id].clone(); let mk_ty = |ty| Type::new_with_resolver(db, &self.resolver, ty); Some((mk_ty(ty), coerced.map(mk_ty))) @@ -248,7 +250,7 @@ impl SourceAnalyzer { ) -> Option { let id = self.pat_id(&pat.clone().into())?; let infer = self.infer.as_ref()?; - infer.binding_modes.get(id).map(|bm| match bm { + infer.binding_modes.get(id.as_pat()?).map(|bm| match bm { hir_ty::BindingMode::Move => BindingMode::Move, hir_ty::BindingMode::Ref(hir_ty::Mutability::Mut) => BindingMode::Ref(Mutability::Mut), hir_ty::BindingMode::Ref(hir_ty::Mutability::Not) => { @@ -266,7 +268,7 @@ impl SourceAnalyzer { Some( infer .pat_adjustments - .get(&pat_id)? + .get(&pat_id.as_pat()?)? .iter() .map(|ty| Type::new_with_resolver(db, &self.resolver, ty.clone())) .collect(), @@ -649,10 +651,10 @@ impl SourceAnalyzer { let field_name = field.field_name()?.as_name(); let record_pat = ast::RecordPat::cast(field.syntax().parent().and_then(|p| p.parent())?)?; let pat_id = self.pat_id(&record_pat.into())?; - let variant = self.infer.as_ref()?.variant_resolution_for_pat(pat_id)?; + let variant = self.infer.as_ref()?.variant_resolution_for_pat(pat_id.as_pat()?)?; let variant_data = variant.variant_data(db.upcast()); let field = FieldId { parent: variant, local_id: variant_data.field(&field_name)? }; - let (adt, subst) = self.infer.as_ref()?.type_of_pat.get(pat_id)?.as_adt()?; + let (adt, subst) = self.infer.as_ref()?.type_of_pat.get(pat_id.as_pat()?)?.as_adt()?; let field_ty = db.field_types(variant).get(field.local_id)?.clone().substitute(Interner, subst); Some(( @@ -684,7 +686,7 @@ impl SourceAnalyzer { ) -> Option { let pat_id = self.pat_id(&pat.clone().into())?; let body = self.body()?; - let path = match &body[pat_id] { + let path = match &body[pat_id.as_pat()?] { Pat::Path(path) => path, _ => return None, }; @@ -783,7 +785,7 @@ impl SourceAnalyzer { prefer_value_ns = true; } else if let Some(path_pat) = parent().and_then(ast::PathPat::cast) { let pat_id = self.pat_id(&path_pat.into())?; - if let Some((assoc, subs)) = infer.assoc_resolutions_for_pat(pat_id) { + if let Some((assoc, subs)) = infer.assoc_resolutions_for_pat(pat_id.as_pat()?) { let (assoc, subst) = match assoc { AssocItemId::ConstId(const_id) => { let (konst, subst) = @@ -807,7 +809,7 @@ impl SourceAnalyzer { return Some((PathResolution::Def(AssocItem::from(assoc).into()), Some(subst))); } if let Some(VariantId::EnumVariantId(variant)) = - infer.variant_resolution_for_pat(pat_id) + infer.variant_resolution_for_pat(pat_id.as_pat()?) { return Some((PathResolution::Def(ModuleDef::Variant(variant.into())), None)); } @@ -824,7 +826,7 @@ impl SourceAnalyzer { || parent().and_then(ast::TupleStructPat::cast).map(ast::Pat::from); if let Some(pat) = record_pat.or_else(tuple_struct_pat) { let pat_id = self.pat_id(&pat)?; - let variant_res_for_pat = infer.variant_resolution_for_pat(pat_id); + let variant_res_for_pat = infer.variant_resolution_for_pat(pat_id.as_pat()?); if let Some(VariantId::EnumVariantId(variant)) = variant_res_for_pat { return Some(( PathResolution::Def(ModuleDef::Variant(variant.into())), @@ -1043,7 +1045,7 @@ impl SourceAnalyzer { let body = self.body()?; let infer = self.infer.as_ref()?; - let pat_id = self.pat_id(&pattern.clone().into())?; + let pat_id = self.pat_id(&pattern.clone().into())?.as_pat()?; let substs = infer.type_of_pat[pat_id].as_adt()?.1; let (variant, missing_fields, _exhaustive) = From 3e9633b4611ec61b81611963dde154508192e8b3 Mon Sep 17 00:00:00 2001 From: Ali Bektas Date: Tue, 21 Jan 2025 19:21:41 +0100 Subject: [PATCH 13/75] resolve_bind_pat_to_const does not early return if expr --- .../crates/hir-def/src/expr_store/tests.rs | 112 +++--------------- .../crates/hir/src/source_analyzer.rs | 15 ++- 2 files changed, 28 insertions(+), 99 deletions(-) diff --git a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/tests.rs b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/tests.rs index 73eed744715d5..b84043af687fe 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/tests.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/tests.rs @@ -1,6 +1,6 @@ mod block; -use crate::{test_db::TestDB, ModuleDefId}; +use crate::{hir::MatchArm, test_db::TestDB, ModuleDefId}; use expect_test::{expect, Expect}; use la_arena::RawIdx; use test_fixture::WithFixture; @@ -459,8 +459,9 @@ async fn foo(a: (), b: i32) -> u32 { .assert_eq(&printed); } -fn test1() { - let (db, body, owner) = lower( +#[test] +fn range_bounds_are_hir_exprs() { + let (_, body, _) = lower( r#" pub const L: i32 = 6; mod x { @@ -468,115 +469,34 @@ mod x { } const fn f(x: i32) -> i32 { match x { - L..=x::R => x * 100, -1..=5 => x * 10, + L..=x::R => x * 100, _ => x, } }"#, ); - let pat = body - .pats + let mtch_arms = body + .exprs .iter() - .find_map(|pat| { - if let Pat::Range { .. } = pat.1 { - return Some(pat.1); + .find_map(|(_, expr)| { + if let Expr::Match { arms, .. } = expr { + return Some(arms); } None }) .unwrap(); - match pat { + let MatchArm { pat, .. } = mtch_arms[1]; + match body.pats[pat] { Pat::Range { start, end } => { - dbg!(&body.exprs[start.unwrap()]); - dbg!(&body.exprs[end.unwrap()]); - } - _ => {} - } -} - -#[test] -fn test2() { - let (db, body, owner) = lower( - r#" -pub const L: i32 = 6; -mod x { - pub const R: i32 = 100; -} -const fn f(x: i32) -> i32 { - match x { - -1..=5 => x * 10, - ::std::i32::MIN..=x::R => x * 100, - _ => x, - } -}"#, - ); + let hir_start = &body.exprs[start.unwrap()]; + let hir_end = &body.exprs[end.unwrap()]; - for (pat_id, pat) in body.pats.iter() { - match pat { - Pat::Range { start, end } => { - let pretty = body.pretty_print_pat(&db, owner, pat_id, false, Edition::Edition2021); - eprintln!("RANGE {}", pretty); - - if let Some(start) = start { - eprintln!("START"); - let expr = body.exprs[*start].clone(); - dbg!(expr); - } else { - eprintln!("START is None"); - } - - if let Some(end) = end { - eprintln!("END"); - let expr = body.exprs[*end].clone(); - dbg!(expr); - } else { - eprintln!("END is None"); - } - } - _ => {} + assert!(matches!(hir_start, Expr::Path { .. })); + assert!(matches!(hir_end, Expr::Path { .. })); } - } -} - -#[test] -fn test3() { - let (db, body, owner) = lower( - r#" -const A: u32 = 0; - -fn bar(v: u32) { - match v { - 0..=A => {} _ => {} } -}"#, - ); - - for (pat_id, pat) in body.pats.iter() { - match pat { - Pat::Range { start, end } => { - let pretty = body.pretty_print_pat(&db, owner, pat_id, false, Edition::Edition2021); - eprintln!("RANGE {}", pretty); - - if let Some(start) = start { - eprintln!("START"); - let expr = body.exprs[*start].clone(); - dbg!(expr); - } else { - eprintln!("START is None"); - } - - if let Some(end) = end { - eprintln!("END"); - let expr = body.exprs[*end].clone(); - dbg!(expr); - } else { - eprintln!("END is None"); - } - } - _ => {} - } - } } diff --git a/src/tools/rust-analyzer/crates/hir/src/source_analyzer.rs b/src/tools/rust-analyzer/crates/hir/src/source_analyzer.rs index 06fcebad65d1a..8a1e4fba6b709 100644 --- a/src/tools/rust-analyzer/crates/hir/src/source_analyzer.rs +++ b/src/tools/rust-analyzer/crates/hir/src/source_analyzer.rs @@ -686,10 +686,19 @@ impl SourceAnalyzer { ) -> Option { let pat_id = self.pat_id(&pat.clone().into())?; let body = self.body()?; - let path = match &body[pat_id.as_pat()?] { - Pat::Path(path) => path, - _ => return None, + + let path = if pat_id.is_pat() { + match &body[pat_id.as_pat()?] { + Pat::Path(path) => path, + _ => return None, + } + } else { + match &body[pat_id.as_expr()?] { + Expr::Path(path) => path, + _ => return None, + } }; + let res = resolve_hir_path(db, &self.resolver, path, HygieneId::ROOT, TypesMap::EMPTY)?; match res { PathResolution::Def(def) => Some(def), From 0d544cf622f8bfcfc7c324a4ff5709e27604726b Mon Sep 17 00:00:00 2001 From: Ali Bektas Date: Tue, 21 Jan 2025 19:30:41 +0100 Subject: [PATCH 14/75] Remove dbg lines --- src/tools/rust-analyzer/crates/hir/src/semantics.rs | 1 - src/tools/rust-analyzer/crates/ide-db/src/defs.rs | 6 ++---- 2 files changed, 2 insertions(+), 5 deletions(-) diff --git a/src/tools/rust-analyzer/crates/hir/src/semantics.rs b/src/tools/rust-analyzer/crates/hir/src/semantics.rs index 90c6e7e7b3b43..882a27182f015 100644 --- a/src/tools/rust-analyzer/crates/hir/src/semantics.rs +++ b/src/tools/rust-analyzer/crates/hir/src/semantics.rs @@ -1640,7 +1640,6 @@ impl<'db> SemanticsImpl<'db> { } pub fn to_def(&self, src: &T) -> Option { - dbg!(std::any::type_name::()); let src = self.find_file(src.syntax()).with_value(src); T::to_def(self, src) } diff --git a/src/tools/rust-analyzer/crates/ide-db/src/defs.rs b/src/tools/rust-analyzer/crates/ide-db/src/defs.rs index c45cb4294f0d1..bad536080567f 100644 --- a/src/tools/rust-analyzer/crates/ide-db/src/defs.rs +++ b/src/tools/rust-analyzer/crates/ide-db/src/defs.rs @@ -20,7 +20,6 @@ use hir::{ }; use span::Edition; use stdx::{format_to, impl_from}; -use syntax::ToSmolStr; use syntax::{ ast::{self, AstNode}, match_ast, SyntaxKind, SyntaxNode, SyntaxToken, @@ -366,7 +365,6 @@ impl IdentClass { sema: &Semantics<'_, RootDatabase>, node: &SyntaxNode, ) -> Option { - dbg!(&node.to_smolstr()); match_ast! { match node { ast::Name(name) => NameClass::classify(sema, &name).map(IdentClass::NameClass), @@ -523,7 +521,7 @@ impl NameClass { let definition = match_ast! { match parent { ast::Item(it) => classify_item(sema, it)?, - ast::IdentPat(it) => return dbg!(classify_ident_pat(sema, it)), + ast::IdentPat(it) => return classify_ident_pat(sema, it), ast::Rename(it) => classify_rename(sema, it)?, ast::SelfParam(it) => Definition::Local(sema.to_def(&it)?), ast::RecordField(it) => Definition::Field(sema.to_def(&it)?), @@ -576,7 +574,7 @@ impl NameClass { return Some(NameClass::ConstReference(Definition::from(def))); } - let local = dbg!(sema.to_def(&ident_pat))?; + let local = sema.to_def(&ident_pat)?; let pat_parent = ident_pat.syntax().parent(); if let Some(record_pat_field) = pat_parent.and_then(ast::RecordPatField::cast) { if record_pat_field.name_ref().is_none() { From fcc796829e0cbd189af0e29f283fb433a148ad11 Mon Sep 17 00:00:00 2001 From: Ali Bektas Date: Tue, 21 Jan 2025 21:14:16 +0100 Subject: [PATCH 15/75] Remove fixme and add a missing test attribute --- src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower.rs | 1 - src/tools/rust-analyzer/crates/hir-def/src/expr_store/tests.rs | 1 + 2 files changed, 1 insertion(+), 1 deletion(-) diff --git a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower.rs b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower.rs index e4fcf949d9144..2be7b9963bb6e 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower.rs @@ -1789,7 +1789,6 @@ impl ExprCollector<'_> { } None => Pat::Missing, }, - // FIXME: implement in a way that also builds source map and calculates assoc resolutions in type inference. ast::Pat::RangePat(p) => { let mut range_part_lower = |p: Option| -> Option { p.and_then(|it| { diff --git a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/tests.rs b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/tests.rs index b84043af687fe..16bf46d3e3f95 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/tests.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/tests.rs @@ -445,6 +445,7 @@ fn foo() { ); } +#[test] fn skip_skips_body() { let (db, body, owner) = lower( r#" From bf2f2c4d71915a9b98d64e75c31264665a0399a7 Mon Sep 17 00:00:00 2001 From: Ali Bektas Date: Tue, 21 Jan 2025 23:22:39 +0100 Subject: [PATCH 16/75] Fix clippy errors --- .../crates/hir-def/src/expr_store/lower.rs | 8 ++++---- src/tools/rust-analyzer/crates/hir-def/src/hir.rs | 10 ++-------- src/tools/rust-analyzer/crates/hir-ty/src/mir/lower.rs | 6 +++--- .../crates/hir/src/semantics/source_to_def.rs | 2 +- 4 files changed, 10 insertions(+), 16 deletions(-) diff --git a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower.rs b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower.rs index 2be7b9963bb6e..95dd1e53ae78d 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower.rs @@ -1802,10 +1802,10 @@ impl ExprCollector<'_> { if ident.is_simple_ident() { return ident .name() - .and_then(|name| Some(name.as_name())) - .and_then(|hir_name| Some(Path::from(hir_name))) - .and_then(|path| { - Some(self.alloc_expr_from_pat(Expr::Path(path), ptr)) + .map(|name| name.as_name()) + .map(Path::from) + .map(|path| { + self.alloc_expr_from_pat(Expr::Path(path), ptr) }); } diff --git a/src/tools/rust-analyzer/crates/hir-def/src/hir.rs b/src/tools/rust-analyzer/crates/hir-def/src/hir.rs index 6aca610a93875..494644d8eff9d 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/hir.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/hir.rs @@ -56,10 +56,7 @@ impl ExprOrPatId { } pub fn is_expr(&self) -> bool { - match self { - Self::ExprId(_) => true, - _ => false, - } + matches!(self, Self::ExprId(_)) } pub fn as_pat(self) -> Option { @@ -70,10 +67,7 @@ impl ExprOrPatId { } pub fn is_pat(&self) -> bool { - match self { - Self::PatId(_) => true, - _ => false, - } + matches!(self, Self::PatId(_)) } } stdx::impl_from!(ExprId, PatId for ExprOrPatId); diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/mir/lower.rs b/src/tools/rust-analyzer/crates/hir-ty/src/mir/lower.rs index 69b3b9c02a0cf..f3f564459dea9 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/mir/lower.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/mir/lower.rs @@ -1359,7 +1359,7 @@ impl<'ctx> MirLowerCtx<'ctx> { } fn lower_literal_or_const_to_operand(&mut self, ty: Ty, loc: &ExprId) -> Result { - match dbg!(&self.body.exprs[*loc]) { + match &self.body.exprs[*loc] { Expr::Literal(l) => self.lower_literal_to_operand(ty, l), Expr::Path(c) => { let edition = self.edition(); @@ -1369,7 +1369,7 @@ impl<'ctx> MirLowerCtx<'ctx> { .resolver .resolve_path_in_value_ns(self.db.upcast(), c, HygieneId::ROOT) .ok_or_else(unresolved_name)?; - dbg!(match dbg!(pr) { + match pr { ResolveValueResult::ValueNs(v, _) => { if let ValueNs::ConstId(c) = v { self.lower_const_to_operand(Substitution::empty(Interner), c.into(), ty) @@ -1380,7 +1380,7 @@ impl<'ctx> MirLowerCtx<'ctx> { ResolveValueResult::Partial(_, _, _) => { not_supported!("associated constants in range pattern") } - }) + } } _ => { not_supported!("only `char` and numeric types are allowed in range patterns"); diff --git a/src/tools/rust-analyzer/crates/hir/src/semantics/source_to_def.rs b/src/tools/rust-analyzer/crates/hir/src/semantics/source_to_def.rs index 227a60bee242f..29d3736bae72c 100644 --- a/src/tools/rust-analyzer/crates/hir/src/semantics/source_to_def.rs +++ b/src/tools/rust-analyzer/crates/hir/src/semantics/source_to_def.rs @@ -347,7 +347,7 @@ impl SourceToDefCtx<'_, '_> { &mut self, src: InFile<&ast::IdentPat>, ) -> Option<(DefWithBodyId, BindingId)> { - let container = dbg!(self.find_pat_or_label_container(src.syntax_ref()))?; + let container = self.find_pat_or_label_container(src.syntax_ref())?; let (body, source_map) = self.db.body_with_source_map(container); let src = src.cloned().map(ast::Pat::from); let pat_id = source_map.node_pat(src.as_ref())?; From bc5f61c76914aa192c04e8c5ecfff07dd37adf11 Mon Sep 17 00:00:00 2001 From: Ali Bektas Date: Mon, 3 Feb 2025 12:07:52 +0100 Subject: [PATCH 17/75] Check if PatPtr resolves to ExprId --- .../crates/hir-def/src/expr_store/lower.rs | 22 ++++------ .../crates/hir/src/diagnostics.rs | 30 ++++++------- src/tools/rust-analyzer/crates/hir/src/lib.rs | 2 +- .../crates/hir/src/source_analyzer.rs | 43 +++++++++++-------- 4 files changed, 49 insertions(+), 48 deletions(-) diff --git a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower.rs b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower.rs index 95dd1e53ae78d..6e505a6b1126e 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower.rs @@ -1798,23 +1798,17 @@ impl ExprCollector<'_> { Expr::Literal(pat_literal_to_hir(it)?.0), ptr, )), - ast::Pat::IdentPat(ident) => { - if ident.is_simple_ident() { - return ident - .name() - .map(|name| name.as_name()) - .map(Path::from) - .map(|path| { - self.alloc_expr_from_pat(Expr::Path(path), ptr) - }); - } - - None - } + ast::Pat::IdentPat(ident) if ident.is_simple_ident() => ident + .name() + .map(|name| name.as_name()) + .map(Path::from) + .map(|path| self.alloc_expr_from_pat(Expr::Path(path), ptr)), ast::Pat::PathPat(p) => p .path() .and_then(|path| self.parse_path(path)) .map(|parsed| self.alloc_expr_from_pat(Expr::Path(parsed), ptr)), + // We only need to handle literal, ident (if bare) and path patterns here, + // as any other pattern as a range pattern operand is semantically invalid. _ => None, } }) @@ -2545,7 +2539,7 @@ impl ExprCollector<'_> { fn alloc_expr_from_pat(&mut self, expr: Expr, ptr: PatPtr) -> ExprId { let src = self.expander.in_file(ptr); - let id = self.body.exprs.alloc(expr); + let id = self.store.exprs.alloc(expr); self.source_map.pat_map.insert(src, id.into()); self.source_map.expr_map_back.insert(id, src.map(AstPtr::wrap_right)); id diff --git a/src/tools/rust-analyzer/crates/hir/src/diagnostics.rs b/src/tools/rust-analyzer/crates/hir/src/diagnostics.rs index 9a5e50af07908..5876529df96a8 100644 --- a/src/tools/rust-analyzer/crates/hir/src/diagnostics.rs +++ b/src/tools/rust-analyzer/crates/hir/src/diagnostics.rs @@ -6,7 +6,7 @@ use cfg::{CfgExpr, CfgOptions}; use either::Either; use hir_def::{ - body::ExprOrPatPtr, + expr_store::ExprOrPatPtr, hir::ExprOrPatId, path::{hir_segment_to_ast_segment, ModPath}, type_ref::TypesSourceMap, @@ -116,14 +116,14 @@ diagnostics![ #[derive(Debug)] pub struct BreakOutsideOfLoop { - pub expr: InFile>>, + pub expr: InFile, pub is_break: bool, pub bad_value_break: bool, } #[derive(Debug)] pub struct TypedHole { - pub expr: InFile>>, + pub expr: InFile, pub expected: Type, } @@ -222,26 +222,26 @@ pub struct NoSuchField { #[derive(Debug)] pub struct PrivateAssocItem { - pub expr_or_pat: InFile>>, + pub expr_or_pat: InFile, pub item: AssocItem, } #[derive(Debug)] pub struct MismatchedTupleStructPatArgCount { - pub expr_or_pat: InFile>>, + pub expr_or_pat: InFile, pub expected: usize, pub found: usize, } #[derive(Debug)] pub struct ExpectedFunction { - pub call: InFile>>, + pub call: InFile, pub found: Type, } #[derive(Debug)] pub struct UnresolvedField { - pub expr: InFile>>, + pub expr: InFile, pub receiver: Type, pub name: Name, pub method_with_same_name_exists: bool, @@ -249,7 +249,7 @@ pub struct UnresolvedField { #[derive(Debug)] pub struct UnresolvedMethodCall { - pub expr: InFile>>, + pub expr: InFile, pub receiver: Type, pub name: Name, pub field_with_same_name: Option, @@ -258,17 +258,17 @@ pub struct UnresolvedMethodCall { #[derive(Debug)] pub struct UnresolvedAssocItem { - pub expr_or_pat: InFile>>, + pub expr_or_pat: InFile, } #[derive(Debug)] pub struct UnresolvedIdent { - pub node: InFile<(AstPtr>, Option)>, + pub node: InFile<(ExprOrPatPtr, Option)>, } #[derive(Debug)] pub struct PrivateField { - pub expr: InFile>>, + pub expr: InFile, pub field: Field, } @@ -281,7 +281,7 @@ pub enum UnsafeLint { #[derive(Debug)] pub struct MissingUnsafe { - pub node: InFile>>, + pub node: InFile, pub lint: UnsafeLint, pub reason: UnsafetyReason, } @@ -322,7 +322,7 @@ pub struct NonExhaustiveLet { #[derive(Debug)] pub struct TypeMismatch { - pub expr_or_pat: InFile>>, + pub expr_or_pat: InFile, pub expected: Type, pub actual: Type, } @@ -396,13 +396,13 @@ pub struct RemoveUnnecessaryElse { #[derive(Debug)] pub struct CastToUnsized { - pub expr: InFile>>, + pub expr: InFile, pub cast_ty: Type, } #[derive(Debug)] pub struct InvalidCast { - pub expr: InFile>>, + pub expr: InFile, pub error: CastError, pub expr_ty: Type, pub cast_ty: Type, diff --git a/src/tools/rust-analyzer/crates/hir/src/lib.rs b/src/tools/rust-analyzer/crates/hir/src/lib.rs index 26b2819913e25..8b8203acb1466 100644 --- a/src/tools/rust-analyzer/crates/hir/src/lib.rs +++ b/src/tools/rust-analyzer/crates/hir/src/lib.rs @@ -2003,7 +2003,7 @@ impl DefWithBody { match source_map.expr_syntax(node) { Ok(node) => acc.push( MissingUnsafe { - node: node.map(|it| it.wrap_left()), + node, lint: UnsafeLint::DeprecatedSafe2024, reason: UnsafetyReason::UnsafeFnCall, } diff --git a/src/tools/rust-analyzer/crates/hir/src/source_analyzer.rs b/src/tools/rust-analyzer/crates/hir/src/source_analyzer.rs index 8a1e4fba6b709..9e7f2c194807e 100644 --- a/src/tools/rust-analyzer/crates/hir/src/source_analyzer.rs +++ b/src/tools/rust-analyzer/crates/hir/src/source_analyzer.rs @@ -210,13 +210,20 @@ impl SourceAnalyzer { db: &dyn HirDatabase, pat: &ast::Pat, ) -> Option<(Type, Option)> { - let pat_id = self.pat_id(pat)?; + let expr_or_pat_id = self.pat_id(pat)?; let infer = self.infer.as_ref()?; - let coerced = infer - .pat_adjustments - .get(&pat_id.as_pat()?) - .and_then(|adjusts| adjusts.last().cloned()); - let ty = infer[pat_id].clone(); + let coerced = match expr_or_pat_id { + ExprOrPatId::ExprId(idx) => infer + .expr_adjustments + .get(&idx) + .and_then(|adjusts| adjusts.last().cloned()) + .map(|adjust| adjust.target), + ExprOrPatId::PatId(idx) => { + infer.pat_adjustments.get(&idx).and_then(|adjusts| adjusts.last().cloned()) + } + }; + + let ty = infer[expr_or_pat_id].clone(); let mk_ty = |ty| Type::new_with_resolver(db, &self.resolver, ty); Some((mk_ty(ty), coerced.map(mk_ty))) } @@ -684,19 +691,18 @@ impl SourceAnalyzer { db: &dyn HirDatabase, pat: &ast::IdentPat, ) -> Option { - let pat_id = self.pat_id(&pat.clone().into())?; + let expr_or_pat_id = self.pat_id(&pat.clone().into())?; let body = self.body()?; - let path = if pat_id.is_pat() { - match &body[pat_id.as_pat()?] { - Pat::Path(path) => path, - _ => return None, - } - } else { - match &body[pat_id.as_expr()?] { + let path = match expr_or_pat_id { + ExprOrPatId::ExprId(idx) => match &body[idx] { Expr::Path(path) => path, _ => return None, - } + }, + ExprOrPatId::PatId(idx) => match &body[idx] { + Pat::Path(path) => path, + _ => return None, + }, }; let res = resolve_hir_path(db, &self.resolver, path, HygieneId::ROOT, TypesMap::EMPTY)?; @@ -793,8 +799,9 @@ impl SourceAnalyzer { } prefer_value_ns = true; } else if let Some(path_pat) = parent().and_then(ast::PathPat::cast) { - let pat_id = self.pat_id(&path_pat.into())?; - if let Some((assoc, subs)) = infer.assoc_resolutions_for_pat(pat_id.as_pat()?) { + let expr_or_pat_id = self.pat_id(&path_pat.into())?; + if let Some((assoc, subs)) = infer.assoc_resolutions_for_expr_or_pat(expr_or_pat_id) + { let (assoc, subst) = match assoc { AssocItemId::ConstId(const_id) => { let (konst, subst) = @@ -818,7 +825,7 @@ impl SourceAnalyzer { return Some((PathResolution::Def(AssocItem::from(assoc).into()), Some(subst))); } if let Some(VariantId::EnumVariantId(variant)) = - infer.variant_resolution_for_pat(pat_id.as_pat()?) + infer.variant_resolution_for_expr_or_pat(expr_or_pat_id) { return Some((PathResolution::Def(ModuleDef::Variant(variant.into())), None)); } From 9bd9bcf4964ee3eeed2bbb99567619c8fb3d70d6 Mon Sep 17 00:00:00 2001 From: jyn Date: Sun, 9 Feb 2025 14:12:00 -0500 Subject: [PATCH 18/75] fix off-by-one error --- .../rust-analyzer/.github/workflows/ci.yaml | 6 +- .../rust-analyzer/src/handlers/request.rs | 3 +- .../rust-analyzer/tests/slow-tests/main.rs | 74 ++++++++++++++++++- 3 files changed, 77 insertions(+), 6 deletions(-) diff --git a/src/tools/rust-analyzer/.github/workflows/ci.yaml b/src/tools/rust-analyzer/.github/workflows/ci.yaml index ec33009239c4f..81b55712d7f39 100644 --- a/src/tools/rust-analyzer/.github/workflows/ci.yaml +++ b/src/tools/rust-analyzer/.github/workflows/ci.yaml @@ -64,7 +64,11 @@ jobs: run: | rustup update --no-self-update ${{ env.RUST_CHANNEL }} rustup default ${{ env.RUST_CHANNEL }} - rustup component add --toolchain ${{ env.RUST_CHANNEL }} rustfmt rust-src + rustup component add --toolchain ${{ env.RUST_CHANNEL }} rust-src + # We always use a nightly rustfmt, regardless of channel, because we need + # --file-lines. + rustup toolchain add nightly --profile minimal + rustup component add --toolchain nightly rustfmt # https://github.com/actions-rust-lang/setup-rust-toolchain/blob/main/rust.json - name: Install Rust Problem Matcher if: matrix.os == 'ubuntu-latest' diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/handlers/request.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/handlers/request.rs index ed028f1d37b67..37e4a4940ba7d 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/handlers/request.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/handlers/request.rs @@ -2284,7 +2284,8 @@ fn run_rustfmt( cmd.arg( json!([{ "file": "stdin", - "range": [start_line, end_line] + // LineCol is 0-based, but rustfmt is 1-based. + "range": [start_line + 1, end_line + 1] }]) .to_string(), ); diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/tests/slow-tests/main.rs b/src/tools/rust-analyzer/crates/rust-analyzer/tests/slow-tests/main.rs index 2b3c0a47a220d..7f95641746e98 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/tests/slow-tests/main.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/tests/slow-tests/main.rs @@ -21,12 +21,14 @@ use lsp_types::{ notification::DidOpenTextDocument, request::{ CodeActionRequest, Completion, Formatting, GotoTypeDefinition, HoverRequest, - InlayHintRequest, InlayHintResolveRequest, WillRenameFiles, WorkspaceSymbolRequest, + InlayHintRequest, InlayHintResolveRequest, RangeFormatting, WillRenameFiles, + WorkspaceSymbolRequest, }, CodeActionContext, CodeActionParams, CompletionParams, DidOpenTextDocumentParams, - DocumentFormattingParams, FileRename, FormattingOptions, GotoDefinitionParams, HoverParams, - InlayHint, InlayHintLabel, InlayHintParams, PartialResultParams, Position, Range, - RenameFilesParams, TextDocumentItem, TextDocumentPositionParams, WorkDoneProgressParams, + DocumentFormattingParams, DocumentRangeFormattingParams, FileRename, FormattingOptions, + GotoDefinitionParams, HoverParams, InlayHint, InlayHintLabel, InlayHintParams, + PartialResultParams, Position, Range, RenameFilesParams, TextDocumentItem, + TextDocumentPositionParams, WorkDoneProgressParams, }; use rust_analyzer::lsp::ext::{OnEnter, Runnables, RunnablesParams}; use serde_json::json; @@ -660,6 +662,70 @@ fn main() {} ); } +#[test] +fn test_format_document_range() { + if skip_slow_tests() { + return; + } + + let server = Project::with_fixture( + r#" +//- /Cargo.toml +[package] +name = "foo" +version = "0.0.0" + +//- /src/lib.rs +fn main() { + let unit_offsets_cache = collect(dwarf.units ()) ?; +} +"#, + ) + .with_config(serde_json::json!({ + "rustfmt": { + "overrideCommand": [ "rustfmt", "+nightly", ], + "rangeFormatting": { "enable": true } + }, + })) + .server() + .wait_until_workspace_is_loaded(); + + server.request::( + DocumentRangeFormattingParams { + range: Range { + end: Position { line: 1, character: 0 }, + start: Position { line: 1, character: 0 }, + }, + text_document: server.doc_id("src/lib.rs"), + options: FormattingOptions { + tab_size: 4, + insert_spaces: false, + insert_final_newline: None, + trim_final_newlines: None, + trim_trailing_whitespace: None, + properties: HashMap::new(), + }, + work_done_progress_params: WorkDoneProgressParams::default(), + }, + json!([ + { + "newText": "", + "range": { + "start": { "character": 48, "line": 1 }, + "end": { "character": 50, "line": 1 }, + }, + }, + { + "newText": "", + "range": { + "start": { "character": 53, "line": 1 }, + "end": { "character": 55, "line": 1 }, + }, + } + ]), + ); +} + #[test] fn test_missing_module_code_action() { if skip_slow_tests() { From d2459e5c1ef0c24582f8b84ae150204d9ab2d1f8 Mon Sep 17 00:00:00 2001 From: jyn Date: Sun, 9 Feb 2025 14:12:21 -0500 Subject: [PATCH 19/75] fix target dir test --- .../rust-analyzer/crates/rust-analyzer/src/config.rs | 4 +++- src/tools/rust-analyzer/crates/test-utils/src/lib.rs | 9 ++++++++- 2 files changed, 11 insertions(+), 2 deletions(-) diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/config.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/config.rs index e915e55722bbb..2e9bb8c08e2f2 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/config.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/config.rs @@ -3798,8 +3798,10 @@ mod tests { (config, _, _) = config.apply_change(change); assert_eq!(config.cargo_targetDir(None), &Some(TargetDirectory::UseSubdirectory(true))); + let target = + Utf8PathBuf::from(std::env::var("CARGO_TARGET_DIR").unwrap_or("target".to_owned())); assert!( - matches!(config.flycheck(None), FlycheckConfig::CargoCommand { options, .. } if options.target_dir == Some(Utf8PathBuf::from("target/rust-analyzer"))) + matches!(config.flycheck(None), FlycheckConfig::CargoCommand { options, .. } if options.target_dir == Some(target.join("rust-analyzer"))) ); } diff --git a/src/tools/rust-analyzer/crates/test-utils/src/lib.rs b/src/tools/rust-analyzer/crates/test-utils/src/lib.rs index 36be9937d3fea..e7279fa1f6617 100644 --- a/src/tools/rust-analyzer/crates/test-utils/src/lib.rs +++ b/src/tools/rust-analyzer/crates/test-utils/src/lib.rs @@ -396,12 +396,19 @@ pub fn skip_slow_tests() -> bool { if should_skip { eprintln!("ignoring slow test"); } else { - let path = project_root().join("./target/.slow_tests_cookie"); + let path = target_dir().join(".slow_tests_cookie"); fs::write(path, ".").unwrap(); } should_skip } +pub fn target_dir() -> Utf8PathBuf { + match std::env::var("CARGO_TARGET_DIR") { + Ok(target) => Utf8PathBuf::from(target), + Err(_) => project_root().join("target"), + } +} + /// Returns the path to the root directory of `rust-analyzer` project. pub fn project_root() -> Utf8PathBuf { let dir = env!("CARGO_MANIFEST_DIR"); From b5ad702c621ca92a2a24088b6fb2e7fcf30638e9 Mon Sep 17 00:00:00 2001 From: Chayim Refael Friedman Date: Mon, 10 Feb 2025 01:28:28 +0200 Subject: [PATCH 20/75] Censor cfg_attr for attribute macros This is not documented (and I discovered that from experimenting and looking at the compiler's source code), but cfg_attrs *on the same level* as the attribute macro should be processed before it is expanded. cfg_attrs *below* should not (and this is contrary to what happens with derive macros, where both should be processed). --- .../src/macro_expansion_tests/proc_macros.rs | 20 ++++++- .../crates/hir-expand/src/cfg_process.rs | 56 +++++++++++-------- .../crates/test-fixture/src/lib.rs | 44 ++++++++++++++- 3 files changed, 96 insertions(+), 24 deletions(-) diff --git a/src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/proc_macros.rs b/src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/proc_macros.rs index 70e3e1ed4e9cd..a43c0eb9d70bb 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/proc_macros.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/proc_macros.rs @@ -5,7 +5,7 @@ //! in-memory macros. use expect_test::expect; -use crate::macro_expansion_tests::check; +use crate::macro_expansion_tests::{check, check_errors}; #[test] fn attribute_macro_attr_censoring() { @@ -216,3 +216,21 @@ struct S; #[doc = "doc attr"] struct S;"##]], ); } + +#[test] +fn cfg_evaluated_before_attr_macros() { + check_errors( + r#" +//- proc_macros: disallow_cfg + +use proc_macros::disallow_cfg; + +#[disallow_cfg] #[cfg(false)] fn foo() {} +// True cfg are kept. +// #[disallow_cfg] #[cfg(true)] fn bar() {} +#[disallow_cfg] #[cfg_attr(false, inline)] fn baz() {} +#[disallow_cfg] #[cfg_attr(true, inline)] fn qux() {} + "#, + expect![[r#""#]], + ); +} diff --git a/src/tools/rust-analyzer/crates/hir-expand/src/cfg_process.rs b/src/tools/rust-analyzer/crates/hir-expand/src/cfg_process.rs index 01a3103af82d4..626a82ae08eab 100644 --- a/src/tools/rust-analyzer/crates/hir-expand/src/cfg_process.rs +++ b/src/tools/rust-analyzer/crates/hir-expand/src/cfg_process.rs @@ -201,9 +201,6 @@ pub(crate) fn process_cfg_attrs( MacroDefKind::BuiltInAttr(_, expander) => expander.is_derive(), _ => false, }; - if !is_derive { - return None; - } let mut remove = FxHashSet::default(); let item = ast::Item::cast(node.clone())?; @@ -220,28 +217,43 @@ pub(crate) fn process_cfg_attrs( } } } - match item { - ast::Item::Struct(it) => match it.field_list()? { - ast::FieldList::RecordFieldList(fields) => { - process_has_attrs_with_possible_comma(db, fields.fields(), loc.krate, &mut remove)?; + + if is_derive { + // Only derives get their code cfg-clean, normal attribute macros process only the cfg at their level + // (cfg_attr is handled above, cfg is handled in the def map). + match item { + ast::Item::Struct(it) => match it.field_list()? { + ast::FieldList::RecordFieldList(fields) => { + process_has_attrs_with_possible_comma( + db, + fields.fields(), + loc.krate, + &mut remove, + )?; + } + ast::FieldList::TupleFieldList(fields) => { + process_has_attrs_with_possible_comma( + db, + fields.fields(), + loc.krate, + &mut remove, + )?; + } + }, + ast::Item::Enum(it) => { + process_enum(db, it.variant_list()?, loc.krate, &mut remove)?; } - ast::FieldList::TupleFieldList(fields) => { - process_has_attrs_with_possible_comma(db, fields.fields(), loc.krate, &mut remove)?; + ast::Item::Union(it) => { + process_has_attrs_with_possible_comma( + db, + it.record_field_list()?.fields(), + loc.krate, + &mut remove, + )?; } - }, - ast::Item::Enum(it) => { - process_enum(db, it.variant_list()?, loc.krate, &mut remove)?; - } - ast::Item::Union(it) => { - process_has_attrs_with_possible_comma( - db, - it.record_field_list()?.fields(), - loc.krate, - &mut remove, - )?; + // FIXME: Implement for other items if necessary. As we do not support #[cfg_eval] yet, we do not need to implement it for now + _ => {} } - // FIXME: Implement for other items if necessary. As we do not support #[cfg_eval] yet, we do not need to implement it for now - _ => {} } Some(remove) } diff --git a/src/tools/rust-analyzer/crates/test-fixture/src/lib.rs b/src/tools/rust-analyzer/crates/test-fixture/src/lib.rs index ca596583590a6..613f27c7958b4 100644 --- a/src/tools/rust-analyzer/crates/test-fixture/src/lib.rs +++ b/src/tools/rust-analyzer/crates/test-fixture/src/lib.rs @@ -17,7 +17,7 @@ use hir_expand::{ tt::{Leaf, TokenTree, TopSubtree, TopSubtreeBuilder, TtElement, TtIter}, FileRange, }; -use intern::Symbol; +use intern::{sym, Symbol}; use rustc_hash::FxHashMap; use span::{Edition, EditionedFileId, FileId, Span}; use stdx::itertools::Itertools; @@ -511,6 +511,21 @@ pub fn issue_18898(_attr: TokenStream, input: TokenStream) -> TokenStream { disabled: false, }, ), + ( + r#" +#[proc_macro_attribute] +pub fn disallow_cfg(_attr: TokenStream, input: TokenStream) -> TokenStream { + input +} +"# + .into(), + ProcMacro { + name: Symbol::intern("disallow_cfg"), + kind: ProcMacroKind::Attr, + expander: sync::Arc::new(DisallowCfgProcMacroExpander), + disabled: false, + }, + ), ]) } @@ -865,3 +880,30 @@ impl ProcMacroExpander for Issue18898ProcMacroExpander { }) } } + +// Reads ident type within string quotes, for issue #17479. +#[derive(Debug)] +struct DisallowCfgProcMacroExpander; +impl ProcMacroExpander for DisallowCfgProcMacroExpander { + fn expand( + &self, + subtree: &TopSubtree, + _: Option<&TopSubtree>, + _: &Env, + _: Span, + _: Span, + _: Span, + _: Option, + ) -> Result { + for tt in subtree.token_trees().flat_tokens() { + if let tt::TokenTree::Leaf(tt::Leaf::Ident(ident)) = tt { + if ident.sym == sym::cfg || ident.sym == sym::cfg_attr { + return Err(ProcMacroExpansionError::Panic( + "cfg or cfg_attr found in DisallowCfgProcMacroExpander".to_owned(), + )); + } + } + } + Ok(subtree.clone()) + } +} From ef8574aa0463c513a2b77a62b339f73fa8e5e9e0 Mon Sep 17 00:00:00 2001 From: Hayashi Mikihiro <34ttrweoewiwe28@gmail.com> Date: Mon, 10 Feb 2025 10:50:11 +0900 Subject: [PATCH 21/75] Shadowing BuiltinType by Module Signed-off-by: Hayashi Mikihiro <34ttrweoewiwe28@gmail.com> --- .../crates/hir/src/source_analyzer.rs | 39 ++++++++++++++++++- .../crates/ide/src/goto_definition.rs | 34 ++++++++++++++++ 2 files changed, 72 insertions(+), 1 deletion(-) diff --git a/src/tools/rust-analyzer/crates/hir/src/source_analyzer.rs b/src/tools/rust-analyzer/crates/hir/src/source_analyzer.rs index 23e7518883b56..c687e2d8a0cf4 100644 --- a/src/tools/rust-analyzer/crates/hir/src/source_analyzer.rs +++ b/src/tools/rust-analyzer/crates/hir/src/source_analyzer.rs @@ -866,7 +866,8 @@ impl SourceAnalyzer { // Case where path is a qualifier of another path, e.g. foo::bar::Baz where we are // trying to resolve foo::bar. - if path.parent_path().is_some() { + if let Some(parent_path) = path.parent_path() { + let parent_hir_path = Path::from_src(&mut ctx, parent_path); return match resolve_hir_path_qualifier(db, &self.resolver, &hir_path, &types_map) { None if meta_path.is_some() => path .first_segment() @@ -876,6 +877,42 @@ impl SourceAnalyzer { .map(PathResolution::ToolModule) }) .map(|it| (it, None)), + // Case the type name conflict with use module, + // e.g. + // ``` + // use std::str; + // fn main() { + // str::from_utf8(); // as module std::str + // str::len(); // as primitive type str + // str::no_exist_item(); // as primitive type str + // } + // ``` + Some(it) if matches!(it, PathResolution::Def(ModuleDef::BuiltinType(_))) => { + if let (Some(mod_path), Some(parent_hir_path)) = + (hir_path.mod_path(), parent_hir_path) + { + if let Some(ModuleDefId::ModuleId(id)) = self + .resolver + .resolve_module_path_in_items(db.upcast(), mod_path) + .take_types() + { + let parent_hir_name = + parent_hir_path.segments().get(1).map(|it| it.name); + let module = crate::Module { id }; + if module + .scope(db, None) + .into_iter() + .any(|(name, _)| Some(&name) == parent_hir_name) + { + return Some(( + PathResolution::Def(ModuleDef::Module(module)), + None, + )); + }; + } + } + Some((it, None)) + } // FIXME: We do not show substitutions for parts of path, because this is really complex // due to the interactions with associated items of `impl`s and associated items of associated // types. diff --git a/src/tools/rust-analyzer/crates/ide/src/goto_definition.rs b/src/tools/rust-analyzer/crates/ide/src/goto_definition.rs index bdafb701ff534..60a904233a9a5 100644 --- a/src/tools/rust-analyzer/crates/ide/src/goto_definition.rs +++ b/src/tools/rust-analyzer/crates/ide/src/goto_definition.rs @@ -3290,4 +3290,38 @@ fn main() { "#, ); } + + #[test] + fn shadow_builtin_type_by_module() { + check( + r#" +mod Foo{ +pub mod str { + // ^^^ + pub fn foo() {} +} +} + +fn main() { + use Foo::str; + let s = st$0r::foo(); +} +"#, + ); + } + + #[test] + fn not_goto_module_because_str_is_builtin_type() { + check( + r#" +mod str { +pub fn foo() {} +} + +fn main() { + let s = st$0r::f(); +} +"#, + ); + } } From 8f8e1c6f08ec25ea42b74c44b0a5c93fffb84610 Mon Sep 17 00:00:00 2001 From: austaras Date: Sun, 9 Feb 2025 20:40:41 +0800 Subject: [PATCH 22/75] pass struct fields to chalk --- .../crates/hir-ty/src/chalk_db.rs | 20 +++++++-------- .../crates/hir-ty/src/tests/coercion.rs | 25 ++++++++++++++++--- .../crates/hir-ty/src/tests/traits.rs | 12 ++++----- 3 files changed, 37 insertions(+), 20 deletions(-) diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/chalk_db.rs b/src/tools/rust-analyzer/crates/hir-ty/src/chalk_db.rs index c8ff6cba3dd18..6d4753ea3898c 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/chalk_db.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/chalk_db.rs @@ -768,23 +768,21 @@ pub(crate) fn adt_datum_query( phantom_data, }; - // this slows down rust-analyzer by quite a bit unfortunately, so enabling this is currently not worth it - let _variant_id_to_fields = |id: VariantId| { + let variant_id_to_fields = |id: VariantId| { let variant_data = &id.variant_data(db.upcast()); - let fields = if variant_data.fields().is_empty() { + let fields = if variant_data.fields().is_empty() || bound_vars_subst.is_empty(Interner) { vec![] } else { - let field_types = db.field_types(id); - variant_data - .fields() - .iter() - .map(|(idx, _)| field_types[idx].clone().substitute(Interner, &bound_vars_subst)) - .filter(|it| !it.contains_unknown()) - .collect() + // HACK: provide full struct type info slows down rust-analyzer by quite a bit unfortunately, + // so we trick chalk into thinking that our struct impl Unsize + if let Some(ty) = bound_vars_subst.at(Interner, 0).ty(Interner) { + vec![ty.clone()] + } else { + vec![] + } }; rust_ir::AdtVariantDatum { fields } }; - let variant_id_to_fields = |_: VariantId| rust_ir::AdtVariantDatum { fields: vec![] }; let (kind, variants) = match adt_id { hir_def::AdtId::StructId(id) => { diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/tests/coercion.rs b/src/tools/rust-analyzer/crates/hir-ty/src/tests/coercion.rs index 7992f1feeeb1d..a5978d905b119 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/tests/coercion.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/tests/coercion.rs @@ -536,7 +536,7 @@ fn test() { #[test] fn coerce_unsize_generic() { - check( + check_no_mismatches( r#" //- minicore: coerce_unsized struct Foo { t: T }; @@ -544,9 +544,7 @@ struct Bar(Foo); fn test() { let _: &Foo<[usize]> = &Foo { t: [1, 2, 3] }; - //^^^^^^^^^^^^^^^^^^^^^ expected &'? Foo<[usize]>, got &'? Foo<[i32; 3]> let _: &Bar<[usize]> = &Bar(Foo { t: [1, 2, 3] }); - //^^^^^^^^^^^^^^^^^^^^^^^^^^ expected &'? Bar<[usize]>, got &'? Bar<[i32; 3]> } "#, ); @@ -958,3 +956,24 @@ fn f() { "#, ); } + +#[test] +fn coerce_nested_unsized_struct() { + check_types( + r#" +//- minicore: fn, coerce_unsized, dispatch_from_dyn, sized +use core::marker::Unsize; + +struct Foo(T); + +fn need(_: &Foo i32>) { +} + +fn test() { + let callback = |x| x; + //^ i32 + need(&Foo(callback)); +} +"#, + ) +} diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/tests/traits.rs b/src/tools/rust-analyzer/crates/hir-ty/src/tests/traits.rs index dda7bfb2baf9a..f0eb41b1ce723 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/tests/traits.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/tests/traits.rs @@ -4694,21 +4694,21 @@ fn f() { Struct::::IS_SEND; //^^^^^^^^^^^^^^^^^^^^Yes Struct::::IS_SEND; - //^^^^^^^^^^^^^^^^^^^^Yes + //^^^^^^^^^^^^^^^^^^^^{unknown} Struct::<*const T>::IS_SEND; - //^^^^^^^^^^^^^^^^^^^^^^^^^^^Yes + //^^^^^^^^^^^^^^^^^^^^^^^^^^^{unknown} Enum::::IS_SEND; //^^^^^^^^^^^^^^^^^^Yes Enum::::IS_SEND; - //^^^^^^^^^^^^^^^^^^Yes + //^^^^^^^^^^^^^^^^^^{unknown} Enum::<*const T>::IS_SEND; - //^^^^^^^^^^^^^^^^^^^^^^^^^Yes + //^^^^^^^^^^^^^^^^^^^^^^^^^{unknown} Union::::IS_SEND; //^^^^^^^^^^^^^^^^^^^Yes Union::::IS_SEND; - //^^^^^^^^^^^^^^^^^^^Yes + //^^^^^^^^^^^^^^^^^^^{unknown} Union::<*const T>::IS_SEND; - //^^^^^^^^^^^^^^^^^^^^^^^^^^Yes + //^^^^^^^^^^^^^^^^^^^^^^^^^^{unknown} PhantomData::::IS_SEND; //^^^^^^^^^^^^^^^^^^^^^^^^^Yes PhantomData::::IS_SEND; From 724b85ef11213e128985a22c073c7373d80fd792 Mon Sep 17 00:00:00 2001 From: Chayim Refael Friedman Date: Mon, 10 Feb 2025 15:47:31 +0200 Subject: [PATCH 23/75] Fix postfix completions inside macros Previously the receiver text was taken directly from the AST, which in macros is missing trivia, leading to corruption (or just unintended replacement of user code). Now we upmap the range, and extract the original file text in it. --- .../ide-completion/src/completions/postfix.rs | 91 +++++++++++++------ 1 file changed, 64 insertions(+), 27 deletions(-) diff --git a/src/tools/rust-analyzer/crates/ide-completion/src/completions/postfix.rs b/src/tools/rust-analyzer/crates/ide-completion/src/completions/postfix.rs index 2c39a8fdfed73..28e2853096e0e 100644 --- a/src/tools/rust-analyzer/crates/ide-completion/src/completions/postfix.rs +++ b/src/tools/rust-analyzer/crates/ide-completion/src/completions/postfix.rs @@ -2,17 +2,18 @@ mod format_like; -use hir::ItemInNs; -use ide_db::text_edit::TextEdit; +use base_db::SourceDatabase; +use hir::{ItemInNs, Semantics}; use ide_db::{ documentation::{Documentation, HasDocs}, imports::insert_use::ImportScope, + text_edit::TextEdit, ty_filter::TryEnum, - SnippetCap, + RootDatabase, SnippetCap, }; use stdx::never; use syntax::{ - ast::{self, make, AstNode, AstToken}, + ast::{self, AstNode, AstToken}, SyntaxKind::{BLOCK_EXPR, EXPR_STMT, FOR_EXPR, IF_EXPR, LOOP_EXPR, STMT_LIST, WHILE_EXPR}, TextRange, TextSize, }; @@ -48,7 +49,8 @@ pub(crate) fn complete_postfix( }; let expr_ctx = &dot_access.ctx; - let receiver_text = get_receiver_text(dot_receiver, receiver_is_ambiguous_float_literal); + let receiver_text = + get_receiver_text(&ctx.sema, dot_receiver, receiver_is_ambiguous_float_literal); let cap = match ctx.config.snippet_cap { Some(it) => it, @@ -172,13 +174,15 @@ pub(crate) fn complete_postfix( // The rest of the postfix completions create an expression that moves an argument, // so it's better to consider references now to avoid breaking the compilation - let (dot_receiver, node_to_replace_with) = include_references(dot_receiver); - let receiver_text = - get_receiver_text(&node_to_replace_with, receiver_is_ambiguous_float_literal); - let postfix_snippet = match build_postfix_snippet_builder(ctx, cap, &dot_receiver) { - Some(it) => it, - None => return, - }; + let (dot_receiver_including_refs, prefix) = include_references(dot_receiver); + let mut receiver_text = + get_receiver_text(&ctx.sema, dot_receiver, receiver_is_ambiguous_float_literal); + receiver_text.insert_str(0, &prefix); + let postfix_snippet = + match build_postfix_snippet_builder(ctx, cap, &dot_receiver_including_refs) { + Some(it) => it, + None => return, + }; if !ctx.config.snippets.is_empty() { add_custom_postfix_completions(acc, ctx, &postfix_snippet, &receiver_text); @@ -222,7 +226,7 @@ pub(crate) fn complete_postfix( postfix_snippet("call", "function(expr)", &format!("${{1}}({receiver_text})")) .add_to(acc, ctx.db); - if let Some(parent) = dot_receiver.syntax().parent().and_then(|p| p.parent()) { + if let Some(parent) = dot_receiver_including_refs.syntax().parent().and_then(|p| p.parent()) { if matches!(parent.kind(), STMT_LIST | EXPR_STMT) { postfix_snippet("let", "let", &format!("let $0 = {receiver_text};")) .add_to(acc, ctx.db); @@ -231,9 +235,9 @@ pub(crate) fn complete_postfix( } } - if let ast::Expr::Literal(literal) = dot_receiver.clone() { + if let ast::Expr::Literal(literal) = dot_receiver_including_refs.clone() { if let Some(literal_text) = ast::String::cast(literal.token()) { - add_format_like_completions(acc, ctx, &dot_receiver, cap, &literal_text); + add_format_like_completions(acc, ctx, &dot_receiver_including_refs, cap, &literal_text); } } @@ -260,14 +264,20 @@ pub(crate) fn complete_postfix( } } -fn get_receiver_text(receiver: &ast::Expr, receiver_is_ambiguous_float_literal: bool) -> String { - let mut text = if receiver_is_ambiguous_float_literal { - let text = receiver.syntax().text(); - let without_dot = ..text.len() - TextSize::of('.'); - text.slice(without_dot).to_string() - } else { - receiver.to_string() +fn get_receiver_text( + sema: &Semantics<'_, RootDatabase>, + receiver: &ast::Expr, + receiver_is_ambiguous_float_literal: bool, +) -> String { + // Do not just call `receiver.to_string()`, as that will mess up whitespaces inside macros. + let Some(mut range) = sema.original_range_opt(receiver.syntax()) else { + return receiver.to_string(); }; + if receiver_is_ambiguous_float_literal { + range.range = TextRange::at(range.range.start(), range.range.len() - TextSize::of('.')) + } + let file_text = sema.db.file_text(range.file_id.file_id()); + let mut text = file_text[range.range].to_owned(); // The receiver texts should be interpreted as-is, as they are expected to be // normal Rust expressions. @@ -284,7 +294,7 @@ fn escape_snippet_bits(text: &mut String) { stdx::replace(text, '$', "\\$"); } -fn include_references(initial_element: &ast::Expr) -> (ast::Expr, ast::Expr) { +fn include_references(initial_element: &ast::Expr) -> (ast::Expr, String) { let mut resulting_element = initial_element.clone(); while let Some(field_expr) = resulting_element.syntax().parent().and_then(ast::FieldExpr::cast) @@ -292,7 +302,7 @@ fn include_references(initial_element: &ast::Expr) -> (ast::Expr, ast::Expr) { resulting_element = ast::Expr::from(field_expr); } - let mut new_element_opt = initial_element.clone(); + let mut prefix = String::new(); while let Some(parent_deref_element) = resulting_element.syntax().parent().and_then(ast::PrefixExpr::cast) @@ -303,7 +313,7 @@ fn include_references(initial_element: &ast::Expr) -> (ast::Expr, ast::Expr) { resulting_element = ast::Expr::from(parent_deref_element); - new_element_opt = make::expr_prefix(syntax::T![*], new_element_opt).into(); + prefix.insert(0, '*'); } if let Some(first_ref_expr) = resulting_element.syntax().parent().and_then(ast::RefExpr::cast) { @@ -317,7 +327,7 @@ fn include_references(initial_element: &ast::Expr) -> (ast::Expr, ast::Expr) { let exclusive = parent_ref_element.mut_token().is_some(); resulting_element = ast::Expr::from(parent_ref_element); - new_element_opt = make::expr_ref(new_element_opt, exclusive); + prefix.insert_str(0, if exclusive { "&mut " } else { "&" }); } } else { // If we do not find any ref expressions, restore @@ -325,7 +335,7 @@ fn include_references(initial_element: &ast::Expr) -> (ast::Expr, ast::Expr) { resulting_element = initial_element.clone(); } - (resulting_element, new_element_opt) + (resulting_element, prefix) } fn build_postfix_snippet_builder<'ctx>( @@ -901,4 +911,31 @@ fn main() { "#, ); } + + #[test] + fn inside_macro() { + check_edit( + "box", + r#" +macro_rules! assert { + ( $it:expr $(,)? ) => { $it }; +} + +fn foo() { + let a = true; + assert!(if a == false { true } else { false }.$0); +} + "#, + r#" +macro_rules! assert { + ( $it:expr $(,)? ) => { $it }; +} + +fn foo() { + let a = true; + assert!(Box::new(if a == false { true } else { false })); +} + "#, + ); + } } From 0dd7aad8c323630a728b7595914f1c09fbac142d Mon Sep 17 00:00:00 2001 From: Josh Rotenberg Date: Mon, 10 Feb 2025 15:14:00 -0800 Subject: [PATCH 24/75] add xtask codegen command as well --- src/tools/rust-analyzer/docs/book/README.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/tools/rust-analyzer/docs/book/README.md b/src/tools/rust-analyzer/docs/book/README.md index a9d10df664355..043524b2341b7 100644 --- a/src/tools/rust-analyzer/docs/book/README.md +++ b/src/tools/rust-analyzer/docs/book/README.md @@ -26,4 +26,4 @@ Start with the mdbook [User Guide](https://rust-lang.github.io/mdBook/guide/inst Four sections are generated dynamically: assists, configuration, diagnostics and features. Their content is found in the `generated.md` files of the respective book section, for example `src/configuration_generated.md`, and are included in the book via mdbook's [include](https://rust-lang.github.io/mdBook/format/mdbook.html#including-files) functionality. Generated files can be rebuilt by running the various -test cases that generate them, or by simply running all of the `rust-analyzer` tests with `cargo test`. +test cases that generate them, or by simply running all of the `rust-analyzer` tests with `cargo test` and `cargo xtask codegen`. From 7c68345e1b4ab3ca838bb8e8548253b029824da8 Mon Sep 17 00:00:00 2001 From: Josh Rotenberg Date: Mon, 10 Feb 2025 15:20:51 -0800 Subject: [PATCH 25/75] fix mdbook paths --- src/tools/rust-analyzer/docs/book/book.toml | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/src/tools/rust-analyzer/docs/book/book.toml b/src/tools/rust-analyzer/docs/book/book.toml index ba3c1dede5db7..a6f6a6ed784db 100644 --- a/src/tools/rust-analyzer/docs/book/book.toml +++ b/src/tools/rust-analyzer/docs/book/book.toml @@ -9,10 +9,10 @@ title = "rust-analyzer" edition = "2021" [output.html] -edit-url-template = "https://github.com/rust-lang/rust-analyzer/edit/master/manual/{path}" -git-repository-url = "https://github.com/rust-lang/rust-analyzer/tree/master/manual" +edit-url-template = "https://github.com/rust-lang/rust-analyzer/edit/master/docs/book/{path}" +git-repository-url = "https://github.com/rust-lang/rust-analyzer/tree/master/docs/book" mathjax-support = true -site-url = "/manual/" +site-url = "/book/" [output.html.playground] editable = true From b4014deb7e444aa6ea19ad5039040fda6f60b9cb Mon Sep 17 00:00:00 2001 From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com> Date: Tue, 11 Feb 2025 05:37:54 +0000 Subject: [PATCH 26/75] Bump esbuild from 0.18.12 to 0.25.0 in /editors/code Bumps [esbuild](https://github.com/evanw/esbuild) from 0.18.12 to 0.25.0. - [Release notes](https://github.com/evanw/esbuild/releases) - [Changelog](https://github.com/evanw/esbuild/blob/main/CHANGELOG-2023.md) - [Commits](https://github.com/evanw/esbuild/compare/v0.18.12...v0.25.0) --- updated-dependencies: - dependency-name: esbuild dependency-type: direct:development ... Signed-off-by: dependabot[bot] --- .../editors/code/package-lock.json | 307 +++++++++++------- .../rust-analyzer/editors/code/package.json | 2 +- 2 files changed, 193 insertions(+), 116 deletions(-) diff --git a/src/tools/rust-analyzer/editors/code/package-lock.json b/src/tools/rust-analyzer/editors/code/package-lock.json index 6027f813311c9..86a066454a5cb 100644 --- a/src/tools/rust-analyzer/editors/code/package-lock.json +++ b/src/tools/rust-analyzer/editors/code/package-lock.json @@ -23,7 +23,7 @@ "@typescript-eslint/parser": "^6.0.0", "@vscode/test-electron": "^2.3.8", "@vscode/vsce": "^3.0.0", - "esbuild": "^0.18.12", + "esbuild": "^0.25.0", "eslint": "^8.44.0", "eslint-config-prettier": "^8.8.0", "ovsx": "^0.8.2", @@ -256,356 +256,429 @@ "node": ">=16" } }, + "node_modules/@esbuild/aix-ppc64": { + "version": "0.25.0", + "resolved": "https://registry.npmjs.org/@esbuild/aix-ppc64/-/aix-ppc64-0.25.0.tgz", + "integrity": "sha512-O7vun9Sf8DFjH2UtqK8Ku3LkquL9SZL8OLY1T5NZkA34+wG3OQF7cl4Ql8vdNzM6fzBbYfLaiRLIOZ+2FOCgBQ==", + "cpu": [ + "ppc64" + ], + "dev": true, + "license": "MIT", + "optional": true, + "os": [ + "aix" + ], + "engines": { + "node": ">=18" + } + }, "node_modules/@esbuild/android-arm": { - 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"esbuild": "^0.18.12", + "esbuild": "^0.25.0", "eslint": "^8.44.0", "eslint-config-prettier": "^8.8.0", "ovsx": "^0.8.2", From 11c49a659570d4f9a5a05497fcf8808d7881ecbd Mon Sep 17 00:00:00 2001 From: asuto15 Date: Tue, 11 Feb 2025 15:06:56 +0900 Subject: [PATCH 27/75] Fix highlighting for extern crate in doc comments --- .../crates/ide/src/syntax_highlighting/highlight.rs | 1 + .../src/syntax_highlighting/test_data/highlight_doctest.html | 3 +++ .../rust-analyzer/crates/ide/src/syntax_highlighting/tests.rs | 3 +++ 3 files changed, 7 insertions(+) diff --git a/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/highlight.rs b/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/highlight.rs index 479c0b381a4bb..c6e11b9cbdf72 100644 --- a/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/highlight.rs +++ b/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/highlight.rs @@ -703,6 +703,7 @@ fn highlight_name_ref_by_syntax( }; match parent.kind() { + EXTERN_CRATE => HlTag::Symbol(SymbolKind::Module).into(), METHOD_CALL_EXPR => ast::MethodCallExpr::cast(parent) .and_then(|it| highlight_method_call(sema, krate, &it, edition)) .unwrap_or_else(|| SymbolKind::Method.into()), diff --git a/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/test_data/highlight_doctest.html b/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/test_data/highlight_doctest.html index 5ff96ae2a74f2..2f7bc65d14bbf 100644 --- a/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/test_data/highlight_doctest.html +++ b/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/test_data/highlight_doctest.html @@ -50,6 +50,9 @@ //! fn test() {} //! ``` +//! ```rust +//! extern crate Krate; +//! ``` mod outline_module; /// ``` diff --git a/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/tests.rs b/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/tests.rs index b9520ae2bba27..ad3d47639111d 100644 --- a/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/tests.rs +++ b/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/tests.rs @@ -722,6 +722,9 @@ fn test_highlight_doc_comment() { //! fn test() {} //! ``` +//! ```rust +//! extern crate Krate; +//! ``` mod outline_module; /// ``` From 6e6bdc311add561e3f71a3d49c781e0cac49eb26 Mon Sep 17 00:00:00 2001 From: gohome001 <3156514693@qq.com> Date: Tue, 11 Feb 2025 15:24:46 +0800 Subject: [PATCH 28/75] don't emit implicit drop inlay hints for macro --- .../crates/ide/src/inlay_hints/implicit_drop.rs | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/src/tools/rust-analyzer/crates/ide/src/inlay_hints/implicit_drop.rs b/src/tools/rust-analyzer/crates/ide/src/inlay_hints/implicit_drop.rs index 27c7c3d498187..8c91958d8c9e5 100644 --- a/src/tools/rust-analyzer/crates/ide/src/inlay_hints/implicit_drop.rs +++ b/src/tools/rust-analyzer/crates/ide/src/inlay_hints/implicit_drop.rs @@ -54,7 +54,8 @@ pub(super) fn hints( }; let range = match terminator.span { MirSpan::ExprId(e) => match source_map.expr_syntax(e) { - Ok(s) => { + // don't show inlay hint for macro + Ok(s) if !s.file_id.is_macro() => { let root = &s.file_syntax(sema.db); let expr = s.value.to_node(root); let expr = expr.syntax(); @@ -69,7 +70,7 @@ pub(super) fn hints( } } } - Err(_) => continue, + _ => continue, }, MirSpan::PatId(p) => match source_map.pat_syntax(p) { Ok(s) => s.value.text_range(), From 4036a7a77d04e48b0237baac07c7e4d9fc7dd6de Mon Sep 17 00:00:00 2001 From: gohome001 <3156514693@qq.com> Date: Tue, 11 Feb 2025 15:27:34 +0800 Subject: [PATCH 29/75] add test case for ignoring inlay hint for macro call --- .../ide/src/inlay_hints/implicit_drop.rs | 21 +++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/src/tools/rust-analyzer/crates/ide/src/inlay_hints/implicit_drop.rs b/src/tools/rust-analyzer/crates/ide/src/inlay_hints/implicit_drop.rs index 8c91958d8c9e5..58dc0fdf62cf4 100644 --- a/src/tools/rust-analyzer/crates/ide/src/inlay_hints/implicit_drop.rs +++ b/src/tools/rust-analyzer/crates/ide/src/inlay_hints/implicit_drop.rs @@ -229,6 +229,27 @@ mod tests { //^ drop(y) } //^ drop(x) +"#, + ); + } + + #[test] + fn ignore_inlay_hint_for_macro_call() { + check_with_config( + ONLY_DROP_CONFIG, + r#" + struct X; + + macro_rules! my_macro { + () => {{ + let bbb = X; + bbb + }}; + } + + fn test() -> X { + my_macro!() + } "#, ); } From d695e33c8304241a7feb6a81707e4ee7bc371e09 Mon Sep 17 00:00:00 2001 From: Wilfred Hughes Date: Tue, 11 Feb 2025 12:10:32 -0800 Subject: [PATCH 30/75] manual: Fix URLs to rustdoc pages Now that the manual lives at /manual/, we need to use absolute URLs to link to rustdoc content. --- src/tools/rust-analyzer/xtask/src/codegen.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/tools/rust-analyzer/xtask/src/codegen.rs b/src/tools/rust-analyzer/xtask/src/codegen.rs index 18f49643dc715..e84c259e9797a 100644 --- a/src/tools/rust-analyzer/xtask/src/codegen.rs +++ b/src/tools/rust-analyzer/xtask/src/codegen.rs @@ -117,7 +117,7 @@ impl fmt::Display for Location { let path = self.file.strip_prefix(project_root()).unwrap().display().to_string(); let path = path.replace('\\', "/"); let name = self.file.file_name().unwrap(); - write!(f, " [{}]({}#{}) ", name.to_str().unwrap(), path, self.line) + write!(f, " [{}](/{}#{}) ", name.to_str().unwrap(), path, self.line) } } From 3a7a47b3b676defd22ef3789eefff99ebddc2934 Mon Sep 17 00:00:00 2001 From: Josh Rotenberg Date: Tue, 11 Feb 2025 13:52:01 -0800 Subject: [PATCH 31/75] remove unused plugin config --- src/tools/rust-analyzer/docs/book/book.toml | 5 ----- 1 file changed, 5 deletions(-) diff --git a/src/tools/rust-analyzer/docs/book/book.toml b/src/tools/rust-analyzer/docs/book/book.toml index a6f6a6ed784db..5ca4badde874c 100644 --- a/src/tools/rust-analyzer/docs/book/book.toml +++ b/src/tools/rust-analyzer/docs/book/book.toml @@ -34,8 +34,3 @@ use-boolean-and = true [output.html.fold] enable = true level = 3 - -[preprocessor.toc] -command = "mdbook-toc" -renderer = ["html"] -max-level = 3 From 3a041fcc2cc514ef87f29d8aa8300a0f6a2fa0da Mon Sep 17 00:00:00 2001 From: Lukas Wirth Date: Wed, 12 Feb 2025 09:24:33 +0100 Subject: [PATCH 32/75] Propogate error types in mir type projections --- src/tools/rust-analyzer/crates/hir-ty/src/mir.rs | 11 +++++++++-- .../src/handlers/unused_variables.rs | 13 +++++++++++++ 2 files changed, 22 insertions(+), 2 deletions(-) diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/mir.rs b/src/tools/rust-analyzer/crates/hir-ty/src/mir.rs index 84d8950b1aa2f..41304bbd8a919 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/mir.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/mir.rs @@ -10,7 +10,7 @@ use crate::{ lang_items::is_box, mapping::ToChalk, CallableDefId, ClosureId, Const, ConstScalar, InferenceResult, Interner, MemoryMap, - Substitution, TraitEnvironment, Ty, TyKind, + Substitution, TraitEnvironment, Ty, TyExt, TyKind, }; use base_db::CrateId; use chalk_ir::Mutability; @@ -144,6 +144,13 @@ impl ProjectionElem { closure_field: impl FnOnce(ClosureId, &Substitution, usize) -> Ty, krate: CrateId, ) -> Ty { + // we only bail on mir building when there are type mismatches + // but error types may pop up resulting in us still attempting to build the mir + // so just propagate the error type + if base.is_unknown() { + return TyKind::Error.intern(Interner); + } + if matches!(base.kind(Interner), TyKind::Alias(_) | TyKind::AssociatedType(..)) { base = normalize( db, @@ -166,7 +173,7 @@ impl ProjectionElem { TyKind::Error.intern(Interner) } }, - ProjectionElem::Field(Either::Left(f)) => match &base.kind(Interner) { + ProjectionElem::Field(Either::Left(f)) => match base.kind(Interner) { TyKind::Adt(_, subst) => { db.field_types(f.parent)[f.local_id].clone().substitute(Interner, subst) } diff --git a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/unused_variables.rs b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/unused_variables.rs index 67ece5669419e..d5caf4de3367e 100644 --- a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/unused_variables.rs +++ b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/unused_variables.rs @@ -260,6 +260,19 @@ fn main() { let arr = [1, 2, 3, 4, 5]; let [_x, _y @ ..] = arr; } +"#, + ); + } + + // regression test as we used to panic in this scenario + #[test] + fn unknown_struct_pattern_param_type() { + check_diagnostics( + r#" +struct S { field : u32 } +fn f(S { field }: error) { + // ^^^^^ 💡 warn: unused variable +} "#, ); } From c12a2e750d3dab2897f7b1c7471f10487d1f0285 Mon Sep 17 00:00:00 2001 From: gohome001 <3156514693@qq.com> Date: Wed, 12 Feb 2025 17:18:42 +0800 Subject: [PATCH 33/75] minor: don't show drop hints for other pattern --- .../crates/ide/src/inlay_hints/implicit_drop.rs | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/src/tools/rust-analyzer/crates/ide/src/inlay_hints/implicit_drop.rs b/src/tools/rust-analyzer/crates/ide/src/inlay_hints/implicit_drop.rs index 58dc0fdf62cf4..390139d214eb0 100644 --- a/src/tools/rust-analyzer/crates/ide/src/inlay_hints/implicit_drop.rs +++ b/src/tools/rust-analyzer/crates/ide/src/inlay_hints/implicit_drop.rs @@ -73,8 +73,8 @@ pub(super) fn hints( _ => continue, }, MirSpan::PatId(p) => match source_map.pat_syntax(p) { - Ok(s) => s.value.text_range(), - Err(_) => continue, + Ok(s) if !s.file_id.is_macro() => s.value.text_range(), + _ => continue, }, MirSpan::BindingId(b) => { match source_map @@ -82,13 +82,13 @@ pub(super) fn hints( .iter() .find_map(|p| source_map.pat_syntax(*p).ok()) { - Some(s) => s.value.text_range(), - None => continue, + Some(s) if !s.file_id.is_macro() => s.value.text_range(), + _ => continue, } } MirSpan::SelfParam => match source_map.self_param_syntax() { - Some(s) => s.value.text_range(), - None => continue, + Some(s) if !s.file_id.is_macro() => s.value.text_range(), + _ => continue, }, MirSpan::Unknown => continue, }; From a09ece29254cd06a1ee9529622e47c9a72645cb1 Mon Sep 17 00:00:00 2001 From: Lukas Wirth Date: Fri, 7 Feb 2025 14:56:36 +0100 Subject: [PATCH 34/75] fix: Do not show safety hints for extern items lacking semantics --- .../crates/hir-def/src/dyn_map.rs | 7 ++-- .../crates/hir-def/src/item_scope.rs | 18 ++++++++- .../crates/hir-def/src/nameres/collector.rs | 24 +++++++----- .../rust-analyzer/crates/hir/src/from_id.rs | 1 + src/tools/rust-analyzer/crates/hir/src/lib.rs | 39 +++++++++++++++++-- .../rust-analyzer/crates/hir/src/semantics.rs | 1 + .../hir/src/semantics/child_by_source.rs | 3 ++ .../crates/hir/src/semantics/source_to_def.rs | 14 +++++-- .../rust-analyzer/crates/ide-db/src/defs.rs | 2 +- .../ide/src/inlay_hints/extern_block.rs | 19 +++++---- 10 files changed, 97 insertions(+), 31 deletions(-) diff --git a/src/tools/rust-analyzer/crates/hir-def/src/dyn_map.rs b/src/tools/rust-analyzer/crates/hir-def/src/dyn_map.rs index 0f73595347b12..e9318d146ddf3 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/dyn_map.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/dyn_map.rs @@ -31,9 +31,9 @@ pub mod keys { use crate::{ dyn_map::{DynMap, Policy}, - BlockId, ConstId, EnumId, EnumVariantId, ExternCrateId, FieldId, FunctionId, ImplId, - LifetimeParamId, Macro2Id, MacroRulesId, ProcMacroId, StaticId, StructId, TraitAliasId, - TraitId, TypeAliasId, TypeOrConstParamId, UnionId, UseId, + BlockId, ConstId, EnumId, EnumVariantId, ExternBlockId, ExternCrateId, FieldId, FunctionId, + ImplId, LifetimeParamId, Macro2Id, MacroRulesId, ProcMacroId, StaticId, StructId, + TraitAliasId, TraitId, TypeAliasId, TypeOrConstParamId, UnionId, UseId, }; pub type Key = crate::dyn_map::Key, V, AstPtrPolicy>; @@ -44,6 +44,7 @@ pub mod keys { pub const STATIC: Key = Key::new(); pub const TYPE_ALIAS: Key = Key::new(); pub const IMPL: Key = Key::new(); + pub const EXTERN_BLOCK: Key = Key::new(); pub const TRAIT: Key = Key::new(); pub const TRAIT_ALIAS: Key = Key::new(); pub const STRUCT: Key = Key::new(); diff --git a/src/tools/rust-analyzer/crates/hir-def/src/item_scope.rs b/src/tools/rust-analyzer/crates/hir-def/src/item_scope.rs index 65a39c565611b..0ca1eb9bcfe37 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/item_scope.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/item_scope.rs @@ -18,8 +18,8 @@ use crate::{ db::DefDatabase, per_ns::{Item, MacrosItem, PerNs, TypesItem, ValuesItem}, visibility::{Visibility, VisibilityExplicitness}, - AdtId, BuiltinType, ConstId, ExternCrateId, FxIndexMap, HasModule, ImplId, LocalModuleId, - Lookup, MacroId, ModuleDefId, ModuleId, TraitId, UseId, + AdtId, BuiltinType, ConstId, ExternBlockId, ExternCrateId, FxIndexMap, HasModule, ImplId, + LocalModuleId, Lookup, MacroId, ModuleDefId, ModuleId, TraitId, UseId, }; #[derive(Debug, Default)] @@ -158,6 +158,8 @@ pub struct ItemScope { declarations: Vec, impls: Vec, + #[allow(clippy::box_collection)] + extern_blocks: Option>>, unnamed_consts: Vec, /// Traits imported via `use Trait as _;`. unnamed_trait_imports: FxHashMap>, @@ -319,6 +321,10 @@ impl ItemScope { self.extern_crate_decls.iter().copied() } + pub fn extern_blocks(&self) -> impl Iterator + '_ { + self.extern_blocks.iter().flat_map(|it| it.iter()).copied() + } + pub fn use_decls(&self) -> impl ExactSizeIterator + '_ { self.use_decls.iter().copied() } @@ -469,6 +475,10 @@ impl ItemScope { self.impls.push(imp); } + pub(crate) fn define_extern_block(&mut self, extern_block: ExternBlockId) { + self.extern_blocks.get_or_insert_default().push(extern_block); + } + pub(crate) fn define_extern_crate_decl(&mut self, extern_crate: ExternCrateId) { self.extern_crate_decls.push(extern_crate); } @@ -806,7 +816,11 @@ impl ItemScope { use_imports_types, use_imports_macros, macro_invocations, + extern_blocks, } = self; + if let Some(it) = extern_blocks { + it.shrink_to_fit(); + } types.shrink_to_fit(); values.shrink_to_fit(); macros.shrink_to_fit(); diff --git a/src/tools/rust-analyzer/crates/hir-def/src/nameres/collector.rs b/src/tools/rust-analyzer/crates/hir-def/src/nameres/collector.rs index 06276335b7188..254c1379917ba 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/nameres/collector.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/nameres/collector.rs @@ -1759,16 +1759,20 @@ impl ModCollector<'_, '_> { ); } } - ModItem::ExternBlock(block) => self.collect( - &self.item_tree[block].children, - ItemContainerId::ExternBlockId( - ExternBlockLoc { - container: module, - id: ItemTreeId::new(self.tree_id, block), - } - .intern(db), - ), - ), + ModItem::ExternBlock(block) => { + let extern_block_id = ExternBlockLoc { + container: module, + id: ItemTreeId::new(self.tree_id, block), + } + .intern(db); + self.def_collector.def_map.modules[self.module_id] + .scope + .define_extern_block(extern_block_id); + self.collect( + &self.item_tree[block].children, + ItemContainerId::ExternBlockId(extern_block_id), + ) + } ModItem::MacroCall(mac) => self.collect_macro_call(&self.item_tree[mac], container), ModItem::MacroRules(id) => self.collect_macro_rules(id, module), ModItem::Macro2(id) => self.collect_macro_def(id, module), diff --git a/src/tools/rust-analyzer/crates/hir/src/from_id.rs b/src/tools/rust-analyzer/crates/hir/src/from_id.rs index 537401afdc34a..72df07ef8c0cc 100644 --- a/src/tools/rust-analyzer/crates/hir/src/from_id.rs +++ b/src/tools/rust-analyzer/crates/hir/src/from_id.rs @@ -49,6 +49,7 @@ from_id![ (hir_def::LifetimeParamId, crate::LifetimeParam), (hir_def::MacroId, crate::Macro), (hir_def::ExternCrateId, crate::ExternCrateDecl), + (hir_def::ExternBlockId, crate::ExternBlock), ]; impl From for Adt { diff --git a/src/tools/rust-analyzer/crates/hir/src/lib.rs b/src/tools/rust-analyzer/crates/hir/src/lib.rs index 56090bc6b6057..3c17ddb7b7dba 100644 --- a/src/tools/rust-analyzer/crates/hir/src/lib.rs +++ b/src/tools/rust-analyzer/crates/hir/src/lib.rs @@ -55,8 +55,8 @@ use hir_def::{ resolver::{HasResolver, Resolver}, type_ref::TypesSourceMap, AdtId, AssocItemId, AssocItemLoc, AttrDefId, CallableDefId, ConstId, ConstParamId, - CrateRootModuleId, DefWithBodyId, EnumId, EnumVariantId, ExternCrateId, FunctionId, - GenericDefId, GenericParamId, HasModule, ImplId, InTypeConstId, ItemContainerId, + CrateRootModuleId, DefWithBodyId, EnumId, EnumVariantId, ExternBlockId, ExternCrateId, + FunctionId, GenericDefId, GenericParamId, HasModule, ImplId, InTypeConstId, ItemContainerId, LifetimeParamId, LocalFieldId, Lookup, MacroExpander, MacroId, ModuleId, StaticId, StructId, SyntheticSyntax, TraitAliasId, TupleId, TypeAliasId, TypeOrConstParamId, TypeParamId, UnionId, }; @@ -2327,6 +2327,13 @@ impl Function { db.function_data(self.id).is_async() } + pub fn extern_block(self, db: &dyn HirDatabase) -> Option { + match self.id.lookup(db.upcast()).container { + ItemContainerId::ExternBlockId(id) => Some(ExternBlock { id }), + _ => None, + } + } + pub fn returns_impl_future(self, db: &dyn HirDatabase) -> bool { if self.is_async(db) { return true; @@ -2761,6 +2768,13 @@ impl Static { Type::from_value_def(db, self.id) } + pub fn extern_block(self, db: &dyn HirDatabase) -> Option { + match self.id.lookup(db.upcast()).container { + ItemContainerId::ExternBlockId(id) => Some(ExternBlock { id }), + _ => None, + } + } + /// Evaluate the static initializer. pub fn eval(self, db: &dyn HirDatabase) -> Result { db.const_eval(self.id.into(), Substitution::empty(Interner), None) @@ -2928,6 +2942,17 @@ impl HasVisibility for TypeAlias { } } +#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)] +pub struct ExternBlock { + pub(crate) id: ExternBlockId, +} + +impl ExternBlock { + pub fn module(self, db: &dyn HirDatabase) -> Module { + Module { id: self.id.module(db.upcast()) } + } +} + #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)] pub struct StaticLifetime; @@ -6180,9 +6205,15 @@ impl HasContainer for TraitAlias { } } +impl HasContainer for ExternBlock { + fn container(&self, db: &dyn HirDatabase) -> ItemContainer { + ItemContainer::Module(Module { id: self.id.lookup(db.upcast()).container }) + } +} + fn container_id_to_hir(c: ItemContainerId) -> ItemContainer { match c { - ItemContainerId::ExternBlockId(_id) => ItemContainer::ExternBlock(), + ItemContainerId::ExternBlockId(id) => ItemContainer::ExternBlock(ExternBlock { id }), ItemContainerId::ModuleId(id) => ItemContainer::Module(Module { id }), ItemContainerId::ImplId(id) => ItemContainer::Impl(Impl { id }), ItemContainerId::TraitId(id) => ItemContainer::Trait(Trait { id }), @@ -6194,7 +6225,7 @@ pub enum ItemContainer { Trait(Trait), Impl(Impl), Module(Module), - ExternBlock(), + ExternBlock(ExternBlock), Crate(CrateId), } diff --git a/src/tools/rust-analyzer/crates/hir/src/semantics.rs b/src/tools/rust-analyzer/crates/hir/src/semantics.rs index 882a27182f015..c9145f7d212d7 100644 --- a/src/tools/rust-analyzer/crates/hir/src/semantics.rs +++ b/src/tools/rust-analyzer/crates/hir/src/semantics.rs @@ -1998,6 +1998,7 @@ to_def_impls![ (crate::Adt, ast::Adt, adt_to_def), (crate::ExternCrateDecl, ast::ExternCrate, extern_crate_to_def), (crate::InlineAsmOperand, ast::AsmOperandNamed, asm_operand_to_def), + (crate::ExternBlock, ast::ExternBlock, extern_block_to_def), (MacroCallId, ast::MacroCall, macro_call_to_macro_call), ]; diff --git a/src/tools/rust-analyzer/crates/hir/src/semantics/child_by_source.rs b/src/tools/rust-analyzer/crates/hir/src/semantics/child_by_source.rs index d5dfb98571864..d0fdf5cbdf7a3 100644 --- a/src/tools/rust-analyzer/crates/hir/src/semantics/child_by_source.rs +++ b/src/tools/rust-analyzer/crates/hir/src/semantics/child_by_source.rs @@ -74,6 +74,9 @@ impl ChildBySource for ItemScope { fn child_by_source_to(&self, db: &dyn DefDatabase, res: &mut DynMap, file_id: HirFileId) { self.declarations().for_each(|item| add_module_def(db, res, file_id, item)); self.impls().for_each(|imp| insert_item_loc(db, res, file_id, imp, keys::IMPL)); + self.extern_blocks().for_each(|extern_block| { + insert_item_loc(db, res, file_id, extern_block, keys::EXTERN_BLOCK) + }); self.extern_crate_decls() .for_each(|ext| insert_item_loc(db, res, file_id, ext, keys::EXTERN_CRATE)); self.use_decls().for_each(|ext| insert_item_loc(db, res, file_id, ext, keys::USE)); diff --git a/src/tools/rust-analyzer/crates/hir/src/semantics/source_to_def.rs b/src/tools/rust-analyzer/crates/hir/src/semantics/source_to_def.rs index 3c9e7065c41df..4e61f5b5a35b1 100644 --- a/src/tools/rust-analyzer/crates/hir/src/semantics/source_to_def.rs +++ b/src/tools/rust-analyzer/crates/hir/src/semantics/source_to_def.rs @@ -92,10 +92,10 @@ use hir_def::{ DynMap, }, hir::{BindingId, Expr, LabelId}, - AdtId, BlockId, ConstId, ConstParamId, DefWithBodyId, EnumId, EnumVariantId, ExternCrateId, - FieldId, FunctionId, GenericDefId, GenericParamId, ImplId, LifetimeParamId, Lookup, MacroId, - ModuleId, StaticId, StructId, TraitAliasId, TraitId, TypeAliasId, TypeParamId, UnionId, UseId, - VariantId, + AdtId, BlockId, ConstId, ConstParamId, DefWithBodyId, EnumId, EnumVariantId, ExternBlockId, + ExternCrateId, FieldId, FunctionId, GenericDefId, GenericParamId, ImplId, LifetimeParamId, + Lookup, MacroId, ModuleId, StaticId, StructId, TraitAliasId, TraitId, TypeAliasId, TypeParamId, + UnionId, UseId, VariantId, }; use hir_expand::{ attrs::AttrId, name::AsName, ExpansionInfo, HirFileId, HirFileIdExt, InMacroFile, MacroCallId, @@ -308,6 +308,12 @@ impl SourceToDefCtx<'_, '_> { ) -> Option { self.to_def(src, keys::EXTERN_CRATE) } + pub(super) fn extern_block_to_def( + &mut self, + src: InFile<&ast::ExternBlock>, + ) -> Option { + self.to_def(src, keys::EXTERN_BLOCK) + } #[allow(dead_code)] pub(super) fn use_to_def(&mut self, src: InFile<&ast::Use>) -> Option { self.to_def(src, keys::USE) diff --git a/src/tools/rust-analyzer/crates/ide-db/src/defs.rs b/src/tools/rust-analyzer/crates/ide-db/src/defs.rs index bad536080567f..6f71c3d9bd7e3 100644 --- a/src/tools/rust-analyzer/crates/ide-db/src/defs.rs +++ b/src/tools/rust-analyzer/crates/ide-db/src/defs.rs @@ -108,7 +108,7 @@ impl Definition { ItemContainer::Trait(it) => Some(it.into()), ItemContainer::Impl(it) => Some(it.into()), ItemContainer::Module(it) => Some(it.into()), - ItemContainer::ExternBlock() | ItemContainer::Crate(_) => None, + ItemContainer::ExternBlock(_) | ItemContainer::Crate(_) => None, } } match self { diff --git a/src/tools/rust-analyzer/crates/ide/src/inlay_hints/extern_block.rs b/src/tools/rust-analyzer/crates/ide/src/inlay_hints/extern_block.rs index 2bc91b68ed8fc..652dff0bc56e7 100644 --- a/src/tools/rust-analyzer/crates/ide/src/inlay_hints/extern_block.rs +++ b/src/tools/rust-analyzer/crates/ide/src/inlay_hints/extern_block.rs @@ -7,7 +7,7 @@ use crate::{InlayHint, InlayHintsConfig}; pub(super) fn extern_block_hints( acc: &mut Vec, - FamousDefs(_sema, _): &FamousDefs<'_, '_>, + FamousDefs(sema, _): &FamousDefs<'_, '_>, config: &InlayHintsConfig, _file_id: EditionedFileId, extern_block: ast::ExternBlock, @@ -16,6 +16,7 @@ pub(super) fn extern_block_hints( return None; } let abi = extern_block.abi()?; + sema.to_def(&extern_block)?; acc.push(InlayHint { range: abi.syntax().text_range(), position: crate::InlayHintPosition::Before, @@ -33,7 +34,7 @@ pub(super) fn extern_block_hints( pub(super) fn fn_hints( acc: &mut Vec, - FamousDefs(_sema, _): &FamousDefs<'_, '_>, + FamousDefs(sema, _): &FamousDefs<'_, '_>, config: &InlayHintsConfig, _file_id: EditionedFileId, fn_: &ast::Fn, @@ -43,14 +44,16 @@ pub(super) fn fn_hints( if !implicit_unsafe { return None; } - let fn_ = fn_.fn_token()?; - acc.push(item_hint(config, extern_block, fn_)); + let fn_token = fn_.fn_token()?; + if sema.to_def(fn_).is_some_and(|def| def.extern_block(sema.db).is_some()) { + acc.push(item_hint(config, extern_block, fn_token)); + } Some(()) } pub(super) fn static_hints( acc: &mut Vec, - FamousDefs(_sema, _): &FamousDefs<'_, '_>, + FamousDefs(sema, _): &FamousDefs<'_, '_>, config: &InlayHintsConfig, _file_id: EditionedFileId, static_: &ast::Static, @@ -60,8 +63,10 @@ pub(super) fn static_hints( if !implicit_unsafe { return None; } - let static_ = static_.static_token()?; - acc.push(item_hint(config, extern_block, static_)); + let static_token = static_.static_token()?; + if sema.to_def(static_).is_some_and(|def| def.extern_block(sema.db).is_some()) { + acc.push(item_hint(config, extern_block, static_token)); + } Some(()) } From 0d8015cb23a99a014e7bc82c19cd81e8ffa536a3 Mon Sep 17 00:00:00 2001 From: roife Date: Mon, 13 Jan 2025 04:31:15 +0800 Subject: [PATCH 35/75] fix: handle character boundary in search mode --- .../crates/hir-def/src/import_map.rs | 20 +- .../docs/book/src/assists_generated.md | 3820 +++++++++++++++++ .../docs/book/src/diagnostics_generated.md | 516 +++ .../docs/book/src/features_generated.md | 940 ++++ 4 files changed, 5295 insertions(+), 1 deletion(-) create mode 100644 src/tools/rust-analyzer/docs/book/src/assists_generated.md create mode 100644 src/tools/rust-analyzer/docs/book/src/diagnostics_generated.md create mode 100644 src/tools/rust-analyzer/docs/book/src/features_generated.md diff --git a/src/tools/rust-analyzer/crates/hir-def/src/import_map.rs b/src/tools/rust-analyzer/crates/hir-def/src/import_map.rs index 6137bd34d64a0..d43776b8a66ad 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/import_map.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/import_map.rs @@ -320,7 +320,7 @@ impl SearchMode { }; match m { Some((index, _)) => { - name = &name[index + 1..]; + name = name[index..].strip_prefix(|_: char| true).unwrap_or_default(); true } None => false, @@ -1039,4 +1039,22 @@ pub mod fmt { "#]], ); } + + #[test] + fn unicode_fn_name() { + let ra_fixture = r#" + //- /main.rs crate:main deps:dep + //- /dep.rs crate:dep + pub fn あい() {} + "#; + + check_search( + ra_fixture, + "main", + Query::new("あ".to_owned()).fuzzy(), + expect![[r#" + dep::あい (f) + "#]], + ); + } } diff --git a/src/tools/rust-analyzer/docs/book/src/assists_generated.md b/src/tools/rust-analyzer/docs/book/src/assists_generated.md new file mode 100644 index 0000000000000..3617badeef55b --- /dev/null +++ b/src/tools/rust-analyzer/docs/book/src/assists_generated.md @@ -0,0 +1,3820 @@ +//! Generated by `cargo xtask codegen assists-doc-tests`, do not edit by hand. + +### `add_braces` +**Source:** [add_braces.rs](crates/ide-assists/src/handlers/add_braces.rs#8) + +Adds braces to lambda and match arm expressions. + +#### Before +```rust +fn foo(n: i32) -> i32 { + match n { + 1 =>┃ n + 1, + _ => 0 + } +} +``` + +#### After +```rust +fn foo(n: i32) -> i32 { + match n { + 1 => { + n + 1 + }, + _ => 0 + } +} +``` + + +### `add_explicit_type` +**Source:** [add_explicit_type.rs](crates/ide-assists/src/handlers/add_explicit_type.rs#7) + +Specify type for a let binding. + +#### Before +```rust +fn main() { + let x┃ = 92; +} +``` + +#### After +```rust +fn main() { + let x: i32 = 92; +} +``` + + +### `add_hash` +**Source:** [raw_string.rs](crates/ide-assists/src/handlers/raw_string.rs#89) + +Adds a hash to a raw string literal. + +#### Before +```rust +fn main() { + r#"Hello,┃ World!"#; +} +``` + +#### After +```rust +fn main() { + r##"Hello, World!"##; +} +``` + + +### `add_impl_default_members` +**Source:** [add_missing_impl_members.rs](crates/ide-assists/src/handlers/add_missing_impl_members.rs#58) + +Adds scaffold for overriding default impl members. + +#### Before +```rust +trait Trait { + type X; + fn foo(&self); + fn bar(&self) {} +} + +impl Trait for () { + type X = (); + fn foo(&self) {}┃ +} +``` + +#### After +```rust +trait Trait { + type X; + fn foo(&self); + fn bar(&self) {} +} + +impl Trait for () { + type X = (); + fn foo(&self) {} + + ┃fn bar(&self) {} +} +``` + + +### `add_impl_missing_members` +**Source:** [add_missing_impl_members.rs](crates/ide-assists/src/handlers/add_missing_impl_members.rs#16) + +Adds scaffold for required impl members. + +#### Before +```rust +trait Trait { + type X; + fn foo(&self) -> T; + fn bar(&self) {} +} + +impl Trait for () {┃ + +} +``` + +#### After +```rust +trait Trait { + type X; + fn foo(&self) -> T; + fn bar(&self) {} +} + +impl Trait for () { + ┃type X; + + fn foo(&self) -> u32 { + todo!() + } +} +``` + + +### `add_label_to_loop` +**Source:** [add_label_to_loop.rs](crates/ide-assists/src/handlers/add_label_to_loop.rs#9) + +Adds a label to a loop. + +#### Before +```rust +fn main() { + loop┃ { + break; + continue; + } +} +``` + +#### After +```rust +fn main() { + 'l: loop { + break 'l; + continue 'l; + } +} +``` + + +### `add_lifetime_to_type` +**Source:** [add_lifetime_to_type.rs](crates/ide-assists/src/handlers/add_lifetime_to_type.rs#5) + +Adds a new lifetime to a struct, enum or union. + +#### Before +```rust +struct Point { + x: &┃u32, + y: u32, +} +``` + +#### After +```rust +struct Point<'a> { + x: &'a u32, + y: u32, +} +``` + + +### `add_missing_match_arms` +**Source:** [add_missing_match_arms.rs](crates/ide-assists/src/handlers/add_missing_match_arms.rs#14) + +Adds missing clauses to a `match` expression. + +#### Before +```rust +enum Action { Move { distance: u32 }, Stop } + +fn handle(action: Action) { + match action { + ┃ + } +} +``` + +#### After +```rust +enum Action { Move { distance: u32 }, Stop } + +fn handle(action: Action) { + match action { + Action::Move { distance } => ${1:todo!()}, + Action::Stop => ${2:todo!()},┃ + } +} +``` + + +### `add_return_type` +**Source:** [add_return_type.rs](crates/ide-assists/src/handlers/add_return_type.rs#6) + +Adds the return type to a function or closure inferred from its tail expression if it doesn't have a return +type specified. This assists is useable in a functions or closures tail expression or return type position. + +#### Before +```rust +fn foo() { 4┃2i32 } +``` + +#### After +```rust +fn foo() -> i32 { 42i32 } +``` + + +### `add_turbo_fish` +**Source:** [add_turbo_fish.rs](crates/ide-assists/src/handlers/add_turbo_fish.rs#14) + +Adds `::<_>` to a call of a generic method or function. + +#### Before +```rust +fn make() -> T { todo!() } +fn main() { + let x = make┃(); +} +``` + +#### After +```rust +fn make() -> T { todo!() } +fn main() { + let x = make::<${0:_}>(); +} +``` + + +### `apply_demorgan` +**Source:** [apply_demorgan.rs](crates/ide-assists/src/handlers/apply_demorgan.rs#16) + +Apply [De Morgan's law](https://en.wikipedia.org/wiki/De_Morgan%27s_laws). +This transforms expressions of the form `!l || !r` into `!(l && r)`. +This also works with `&&`. This assist can only be applied with the cursor +on either `||` or `&&`. + +#### Before +```rust +fn main() { + if x != 4 ||┃ y < 3.14 {} +} +``` + +#### After +```rust +fn main() { + if !(x == 4 && y >= 3.14) {} +} +``` + + +### `apply_demorgan_iterator` +**Source:** [apply_demorgan.rs](crates/ide-assists/src/handlers/apply_demorgan.rs#132) + +Apply [De Morgan's law](https://en.wikipedia.org/wiki/De_Morgan%27s_laws) to +`Iterator::all` and `Iterator::any`. + +This transforms expressions of the form `!iter.any(|x| predicate(x))` into +`iter.all(|x| !predicate(x))` and vice versa. This also works the other way for +`Iterator::all` into `Iterator::any`. + +#### Before +```rust +fn main() { + let arr = [1, 2, 3]; + if !arr.into_iter().┃any(|num| num == 4) { + println!("foo"); + } +} +``` + +#### After +```rust +fn main() { + let arr = [1, 2, 3]; + if arr.into_iter().all(|num| num != 4) { + println!("foo"); + } +} +``` + + +### `auto_import` +**Source:** [auto_import.rs](crates/ide-assists/src/handlers/auto_import.rs#73) + +If the name is unresolved, provides all possible imports for it. + +#### Before +```rust +fn main() { + let map = HashMap┃::new(); +} +``` + +#### After +```rust +use std::collections::HashMap; + +fn main() { + let map = HashMap::new(); +} +``` + + +### `bind_unused_param` +**Source:** [bind_unused_param.rs](crates/ide-assists/src/handlers/bind_unused_param.rs#12) + +Binds unused function parameter to an underscore. + +#### Before +```rust +fn some_function(x: i32┃) {} +``` + +#### After +```rust +fn some_function(x: i32) { + let _ = x; +} +``` + + +### `bool_to_enum` +**Source:** [bool_to_enum.rs](crates/ide-assists/src/handlers/bool_to_enum.rs#29) + +This converts boolean local variables, fields, constants, and statics into a new +enum with two variants `Bool::True` and `Bool::False`, as well as replacing +all assignments with the variants and replacing all usages with `== Bool::True` or +`== Bool::False`. + +#### Before +```rust +fn main() { + let ┃bool = true; + + if bool { + println!("foo"); + } +} +``` + +#### After +```rust +#[derive(PartialEq, Eq)] +enum Bool { True, False } + +fn main() { + let bool = Bool::True; + + if bool == Bool::True { + println!("foo"); + } +} +``` + + +### `change_visibility` +**Source:** [change_visibility.rs](crates/ide-assists/src/handlers/change_visibility.rs#13) + +Adds or changes existing visibility specifier. + +#### Before +```rust +┃fn frobnicate() {} +``` + +#### After +```rust +pub(crate) fn frobnicate() {} +``` + + +### `comment_to_doc` +**Source:** [convert_comment_from_or_to_doc.rs](crates/ide-assists/src/handlers/convert_comment_from_or_to_doc.rs#9) + +Converts comments to documentation. + +#### Before +```rust +// Wow what ┃a nice module +// I sure hope this shows up when I hover over it +``` + +#### After +```rust +//! Wow what a nice module +//! I sure hope this shows up when I hover over it +``` + + +### `convert_bool_then_to_if` +**Source:** [convert_bool_then.rs](crates/ide-assists/src/handlers/convert_bool_then.rs#131) + +Converts a `bool::then` method call to an equivalent if expression. + +#### Before +```rust +fn main() { + (0 == 0).then┃(|| val) +} +``` + +#### After +```rust +fn main() { + if 0 == 0 { + Some(val) + } else { + None + } +} +``` + + +### `convert_closure_to_fn` +**Source:** [convert_closure_to_fn.rs](crates/ide-assists/src/handlers/convert_closure_to_fn.rs#25) + +This converts a closure to a freestanding function, changing all captures to parameters. + +#### Before +```rust +fn main() { + let mut s = String::new(); + let closure = |┃a| s.push_str(a); + closure("abc"); +} +``` + +#### After +```rust +fn main() { + let mut s = String::new(); + fn closure(a: &str, s: &mut String) { + s.push_str(a) + } + closure("abc", &mut s); +} +``` + + +### `convert_for_loop_with_for_each` +**Source:** [convert_iter_for_each_to_for.rs](crates/ide-assists/src/handlers/convert_iter_for_each_to_for.rs#76) + +Converts a for loop into a for_each loop on the Iterator. + +#### Before +```rust +fn main() { + let x = vec![1, 2, 3]; + for┃ v in x { + let y = v * 2; + } +} +``` + +#### After +```rust +fn main() { + let x = vec![1, 2, 3]; + x.into_iter().for_each(|v| { + let y = v * 2; + }); +} +``` + + +### `convert_from_to_tryfrom` +**Source:** [convert_from_to_tryfrom.rs](crates/ide-assists/src/handlers/convert_from_to_tryfrom.rs#10) + +Converts a From impl to a TryFrom impl, wrapping returns in `Ok`. + +#### Before +```rust +impl ┃From for Thing { + fn from(val: usize) -> Self { + Thing { + b: val.to_string(), + a: val + } + } +} +``` + +#### After +```rust +impl TryFrom for Thing { + type Error = ${0:()}; + + fn try_from(val: usize) -> Result { + Ok(Thing { + b: val.to_string(), + a: val + }) + } +} +``` + + +### `convert_if_to_bool_then` +**Source:** [convert_bool_then.rs](crates/ide-assists/src/handlers/convert_bool_then.rs#20) + +Converts an if expression into a corresponding `bool::then` call. + +#### Before +```rust +fn main() { + if┃ cond { + Some(val) + } else { + None + } +} +``` + +#### After +```rust +fn main() { + cond.then(|| val) +} +``` + + +### `convert_integer_literal` +**Source:** [convert_integer_literal.rs](crates/ide-assists/src/handlers/convert_integer_literal.rs#5) + +Converts the base of integer literals to other bases. + +#### Before +```rust +const _: i32 = 10┃; +``` + +#### After +```rust +const _: i32 = 0b1010; +``` + + +### `convert_into_to_from` +**Source:** [convert_into_to_from.rs](crates/ide-assists/src/handlers/convert_into_to_from.rs#8) + +Converts an Into impl to an equivalent From impl. + +#### Before +```rust +impl ┃Into for usize { + fn into(self) -> Thing { + Thing { + b: self.to_string(), + a: self + } + } +} +``` + +#### After +```rust +impl From for Thing { + fn from(val: usize) -> Self { + Thing { + b: val.to_string(), + a: val + } + } +} +``` + + +### `convert_iter_for_each_to_for` +**Source:** [convert_iter_for_each_to_for.rs](crates/ide-assists/src/handlers/convert_iter_for_each_to_for.rs#11) + +Converts an Iterator::for_each function into a for loop. + +#### Before +```rust +fn main() { + let iter = iter::repeat((9, 2)); + iter.for_each┃(|(x, y)| { + println!("x: {}, y: {}", x, y); + }); +} +``` + +#### After +```rust +fn main() { + let iter = iter::repeat((9, 2)); + for (x, y) in iter { + println!("x: {}, y: {}", x, y); + } +} +``` + + +### `convert_let_else_to_match` +**Source:** [convert_let_else_to_match.rs](crates/ide-assists/src/handlers/convert_let_else_to_match.rs#9) + +Converts let-else statement to let statement and match expression. + +#### Before +```rust +fn main() { + let Ok(mut x) = f() else┃ { return }; +} +``` + +#### After +```rust +fn main() { + let mut x = match f() { + Ok(x) => x, + _ => return, + }; +} +``` + + +### `convert_match_to_let_else` +**Source:** [convert_match_to_let_else.rs](crates/ide-assists/src/handlers/convert_match_to_let_else.rs#12) + +Converts let statement with match initializer to let-else statement. + +#### Before +```rust +fn foo(opt: Option<()>) { + let val┃ = match opt { + Some(it) => it, + None => return, + }; +} +``` + +#### After +```rust +fn foo(opt: Option<()>) { + let Some(val) = opt else { return }; +} +``` + + +### `convert_named_struct_to_tuple_struct` +**Source:** [convert_named_struct_to_tuple_struct.rs](crates/ide-assists/src/handlers/convert_named_struct_to_tuple_struct.rs#11) + +Converts struct with named fields to tuple struct, and analogously for enum variants with named +fields. + +#### Before +```rust +struct Point┃ { x: f32, y: f32 } + +impl Point { + pub fn new(x: f32, y: f32) -> Self { + Point { x, y } + } + + pub fn x(&self) -> f32 { + self.x + } + + pub fn y(&self) -> f32 { + self.y + } +} +``` + +#### After +```rust +struct Point(f32, f32); + +impl Point { + pub fn new(x: f32, y: f32) -> Self { + Point(x, y) + } + + pub fn x(&self) -> f32 { + self.0 + } + + pub fn y(&self) -> f32 { + self.1 + } +} +``` + + +### `convert_nested_function_to_closure` +**Source:** [convert_nested_function_to_closure.rs](crates/ide-assists/src/handlers/convert_nested_function_to_closure.rs#7) + +Converts a function that is defined within the body of another function into a closure. + +#### Before +```rust +fn main() { + fn fo┃o(label: &str, number: u64) { + println!("{}: {}", label, number); + } + + foo("Bar", 100); +} +``` + +#### After +```rust +fn main() { + let foo = |label: &str, number: u64| { + println!("{}: {}", label, number); + }; + + foo("Bar", 100); +} +``` + + +### `convert_to_guarded_return` +**Source:** [convert_to_guarded_return.rs](crates/ide-assists/src/handlers/convert_to_guarded_return.rs#24) + +Replace a large conditional with a guarded return. + +#### Before +```rust +fn main() { + ┃if cond { + foo(); + bar(); + } +} +``` + +#### After +```rust +fn main() { + if !cond { + return; + } + foo(); + bar(); +} +``` + + +### `convert_tuple_return_type_to_struct` +**Source:** [convert_tuple_return_type_to_struct.rs](crates/ide-assists/src/handlers/convert_tuple_return_type_to_struct.rs#20) + +This converts the return type of a function from a tuple type +into a tuple struct and updates the body accordingly. + +#### Before +```rust +fn bar() { + let (a, b, c) = foo(); +} + +fn foo() -> (┃u32, u32, u32) { + (1, 2, 3) +} +``` + +#### After +```rust +fn bar() { + let FooResult(a, b, c) = foo(); +} + +struct FooResult(u32, u32, u32); + +fn foo() -> FooResult { + FooResult(1, 2, 3) +} +``` + + +### `convert_tuple_struct_to_named_struct` +**Source:** [convert_tuple_struct_to_named_struct.rs](crates/ide-assists/src/handlers/convert_tuple_struct_to_named_struct.rs#10) + +Converts tuple struct to struct with named fields, and analogously for tuple enum variants. + +#### Before +```rust +struct Point┃(f32, f32); + +impl Point { + pub fn new(x: f32, y: f32) -> Self { + Point(x, y) + } + + pub fn x(&self) -> f32 { + self.0 + } + + pub fn y(&self) -> f32 { + self.1 + } +} +``` + +#### After +```rust +struct Point { field1: f32, field2: f32 } + +impl Point { + pub fn new(x: f32, y: f32) -> Self { + Point { field1: x, field2: y } + } + + pub fn x(&self) -> f32 { + self.field1 + } + + pub fn y(&self) -> f32 { + self.field2 + } +} +``` + + +### `convert_two_arm_bool_match_to_matches_macro` +**Source:** [convert_two_arm_bool_match_to_matches_macro.rs](crates/ide-assists/src/handlers/convert_two_arm_bool_match_to_matches_macro.rs#8) + +Convert 2-arm match that evaluates to a boolean into the equivalent matches! invocation. + +#### Before +```rust +fn main() { + match scrutinee┃ { + Some(val) if val.cond() => true, + _ => false, + } +} +``` + +#### After +```rust +fn main() { + matches!(scrutinee, Some(val) if val.cond()) +} +``` + + +### `convert_while_to_loop` +**Source:** [convert_while_to_loop.rs](crates/ide-assists/src/handlers/convert_while_to_loop.rs#20) + +Replace a while with a loop. + +#### Before +```rust +fn main() { + ┃while cond { + foo(); + } +} +``` + +#### After +```rust +fn main() { + loop { + if !cond { + break; + } + foo(); + } +} +``` + + +### `destructure_struct_binding` +**Source:** [destructure_struct_binding.rs](crates/ide-assists/src/handlers/destructure_struct_binding.rs#18) + +Destructures a struct binding in place. + +#### Before +```rust +struct Foo { + bar: i32, + baz: i32, +} +fn main() { + let ┃foo = Foo { bar: 1, baz: 2 }; + let bar2 = foo.bar; + let baz2 = &foo.baz; +} +``` + +#### After +```rust +struct Foo { + bar: i32, + baz: i32, +} +fn main() { + let Foo { bar, baz } = Foo { bar: 1, baz: 2 }; + let bar2 = bar; + let baz2 = &baz; +} +``` + + +### `destructure_tuple_binding` +**Source:** [destructure_tuple_binding.rs](crates/ide-assists/src/handlers/destructure_tuple_binding.rs#19) + +Destructures a tuple binding in place. + +#### Before +```rust +fn main() { + let ┃t = (1,2); + let v = t.0; +} +``` + +#### After +```rust +fn main() { + let (┃_0, _1) = (1,2); + let v = _0; +} +``` + + +### `desugar_async_into_impl_future` +**Source:** [toggle_async_sugar.rs](crates/ide-assists/src/handlers/toggle_async_sugar.rs#103) + +Rewrites asynchronous function from `async fn` into `-> impl Future`. +This action does not touch the function body and therefore `0` +block does not transform to `async { 0 }`. + +#### Before +```rust +pub as┃ync fn foo() -> usize { + 0 +} +``` + +#### After +```rust +pub fn foo() -> impl core::future::Future { + 0 +} +``` + + +### `desugar_doc_comment` +**Source:** [desugar_doc_comment.rs](crates/ide-assists/src/handlers/desugar_doc_comment.rs#14) + +Desugars doc-comments to the attribute form. + +#### Before +```rust +/// Multi-line┃ +/// comment +``` + +#### After +```rust +#[doc = r"Multi-line +comment"] +``` + + +### `expand_glob_import` +**Source:** [expand_glob_import.rs](crates/ide-assists/src/handlers/expand_glob_import.rs#18) + +Expands glob imports. + +#### Before +```rust +mod foo { + pub struct Bar; + pub struct Baz; +} + +use foo::*┃; + +fn qux(bar: Bar, baz: Baz) {} +``` + +#### After +```rust +mod foo { + pub struct Bar; + pub struct Baz; +} + +use foo::{Bar, Baz}; + +fn qux(bar: Bar, baz: Baz) {} +``` + + +### `explicit_enum_discriminant` +**Source:** [explicit_enum_discriminant.rs](crates/ide-assists/src/handlers/explicit_enum_discriminant.rs#11) + +Adds explicit discriminant to all enum variants. + +#### Before +```rust +enum TheEnum┃ { + Foo, + Bar, + Baz = 42, + Quux, +} +``` + +#### After +```rust +enum TheEnum { + Foo = 0, + Bar = 1, + Baz = 42, + Quux = 43, +} +``` + + +### `extract_constant` +**Source:** [extract_variable.rs](crates/ide-assists/src/handlers/extract_variable.rs#35) + +Extracts subexpression into a constant. + +#### Before +```rust +fn main() { + ┃(1 + 2)┃ * 4; +} +``` + +#### After +```rust +fn main() { + const ┃VAR_NAME: i32 = 1 + 2; + VAR_NAME * 4; +} +``` + + +### `extract_expressions_from_format_string` +**Source:** [extract_expressions_from_format_string.rs](crates/ide-assists/src/handlers/extract_expressions_from_format_string.rs#14) + +Move an expression out of a format string. + +#### Before +```rust +fn main() { + print!("{var} {x + 1}┃"); +} +``` + +#### After +```rust +fn main() { + print!("{var} {}"┃, x + 1); +} +``` + + +### `extract_function` +**Source:** [extract_function.rs](crates/ide-assists/src/handlers/extract_function.rs#39) + +Extracts selected statements and comments into new function. + +#### Before +```rust +fn main() { + let n = 1; + ┃let m = n + 2; + // calculate + let k = m + n;┃ + let g = 3; +} +``` + +#### After +```rust +fn main() { + let n = 1; + fun_name(n); + let g = 3; +} + +fn ┃fun_name(n: i32) { + let m = n + 2; + // calculate + let k = m + n; +} +``` + + +### `extract_module` +**Source:** [extract_module.rs](crates/ide-assists/src/handlers/extract_module.rs#29) + +Extracts a selected region as separate module. All the references, visibility and imports are +resolved. + +#### Before +```rust +┃fn foo(name: i32) -> i32 { + name + 1 +}┃ + +fn bar(name: i32) -> i32 { + name + 2 +} +``` + +#### After +```rust +mod modname { + pub(crate) fn foo(name: i32) -> i32 { + name + 1 + } +} + +fn bar(name: i32) -> i32 { + name + 2 +} +``` + + +### `extract_static` +**Source:** [extract_variable.rs](crates/ide-assists/src/handlers/extract_variable.rs#52) + +Extracts subexpression into a static. + +#### Before +```rust +fn main() { + ┃(1 + 2)┃ * 4; +} +``` + +#### After +```rust +fn main() { + static ┃VAR_NAME: i32 = 1 + 2; + VAR_NAME * 4; +} +``` + + +### `extract_struct_from_enum_variant` +**Source:** [extract_struct_from_enum_variant.rs](crates/ide-assists/src/handlers/extract_struct_from_enum_variant.rs#26) + +Extracts a struct from enum variant. + +#### Before +```rust +enum A { ┃One(u32, u32) } +``` + +#### After +```rust +struct One(u32, u32); + +enum A { One(One) } +``` + + +### `extract_type_alias` +**Source:** [extract_type_alias.rs](crates/ide-assists/src/handlers/extract_type_alias.rs#10) + +Extracts the selected type as a type alias. + +#### Before +```rust +struct S { + field: ┃(u8, u8, u8)┃, +} +``` + +#### After +```rust +type ┃Type = (u8, u8, u8); + +struct S { + field: Type, +} +``` + + +### `extract_variable` +**Source:** [extract_variable.rs](crates/ide-assists/src/handlers/extract_variable.rs#18) + +Extracts subexpression into a variable. + +#### Before +```rust +fn main() { + ┃(1 + 2)┃ * 4; +} +``` + +#### After +```rust +fn main() { + let ┃var_name = 1 + 2; + var_name * 4; +} +``` + + +### `fill_record_pattern_fields` +**Source:** [fill_record_pattern_fields.rs](crates/ide-assists/src/handlers/fill_record_pattern_fields.rs#8) + +Fills fields by replacing rest pattern in record patterns. + +#### Before +```rust +struct Bar { y: Y, z: Z } + +fn foo(bar: Bar) { + let Bar { ..┃ } = bar; +} +``` + +#### After +```rust +struct Bar { y: Y, z: Z } + +fn foo(bar: Bar) { + let Bar { y, z } = bar; +} +``` + + +### `fix_visibility` +**Source:** [fix_visibility.rs](crates/ide-assists/src/handlers/fix_visibility.rs#14) + +Makes inaccessible item public. + +#### Before +```rust +mod m { + fn frobnicate() {} +} +fn main() { + m::frobnicate┃(); +} +``` + +#### After +```rust +mod m { + ┃pub(crate) fn frobnicate() {} +} +fn main() { + m::frobnicate(); +} +``` + + +### `flip_binexpr` +**Source:** [flip_binexpr.rs](crates/ide-assists/src/handlers/flip_binexpr.rs#8) + +Flips operands of a binary expression. + +#### Before +```rust +fn main() { + let _ = 90 +┃ 2; +} +``` + +#### After +```rust +fn main() { + let _ = 2 + 90; +} +``` + + +### `flip_comma` +**Source:** [flip_comma.rs](crates/ide-assists/src/handlers/flip_comma.rs#10) + +Flips two comma-separated items. + +#### Before +```rust +fn main() { + ((1, 2),┃ (3, 4)); +} +``` + +#### After +```rust +fn main() { + ((3, 4), (1, 2)); +} +``` + + +### `flip_trait_bound` +**Source:** [flip_trait_bound.rs](crates/ide-assists/src/handlers/flip_trait_bound.rs#9) + +Flips two trait bounds. + +#### Before +```rust +fn foo() { } +``` + +#### After +```rust +fn foo() { } +``` + + +### `generate_constant` +**Source:** [generate_constant.rs](crates/ide-assists/src/handlers/generate_constant.rs#14) + +Generate a named constant. + +#### Before +```rust +struct S { i: usize } +impl S { pub fn new(n: usize) {} } +fn main() { + let v = S::new(CAPA┃CITY); +} +``` + +#### After +```rust +struct S { i: usize } +impl S { pub fn new(n: usize) {} } +fn main() { + const CAPACITY: usize = ┃; + let v = S::new(CAPACITY); +} +``` + + +### `generate_default_from_enum_variant` +**Source:** [generate_default_from_enum_variant.rs](crates/ide-assists/src/handlers/generate_default_from_enum_variant.rs#6) + +Adds a Default impl for an enum using a variant. + +#### Before +```rust +enum Version { + Undefined, + Minor┃, + Major, +} +``` + +#### After +```rust +enum Version { + Undefined, + Minor, + Major, +} + +impl Default for Version { + fn default() -> Self { + Self::Minor + } +} +``` + + +### `generate_default_from_new` +**Source:** [generate_default_from_new.rs](crates/ide-assists/src/handlers/generate_default_from_new.rs#13) + +Generates default implementation from new method. + +#### Before +```rust +struct Example { _inner: () } + +impl Example { + pub fn n┃ew() -> Self { + Self { _inner: () } + } +} +``` + +#### After +```rust +struct Example { _inner: () } + +impl Example { + pub fn new() -> Self { + Self { _inner: () } + } +} + +impl Default for Example { + fn default() -> Self { + Self::new() + } +} +``` + + +### `generate_delegate_methods` +**Source:** [generate_delegate_methods.rs](crates/ide-assists/src/handlers/generate_delegate_methods.rs#15) + +Generate delegate methods. + +#### Before +```rust +struct Age(u8); +impl Age { + fn age(&self) -> u8 { + self.0 + } +} + +struct Person { + ag┃e: Age, +} +``` + +#### After +```rust +struct Age(u8); +impl Age { + fn age(&self) -> u8 { + self.0 + } +} + +struct Person { + age: Age, +} + +impl Person { + ┃fn age(&self) -> u8 { + self.age.age() + } +} +``` + + +### `generate_delegate_trait` +**Source:** [generate_delegate_trait.rs](crates/ide-assists/src/handlers/generate_delegate_trait.rs#29) + +Generate delegate trait implementation for `StructField`s. + +#### Before +```rust +trait SomeTrait { + type T; + fn fn_(arg: u32) -> u32; + fn method_(&mut self) -> bool; +} +struct A; +impl SomeTrait for A { + type T = u32; + + fn fn_(arg: u32) -> u32 { + 42 + } + + fn method_(&mut self) -> bool { + false + } +} +struct B { + a┃: A, +} +``` + +#### After +```rust +trait SomeTrait { + type T; + fn fn_(arg: u32) -> u32; + fn method_(&mut self) -> bool; +} +struct A; +impl SomeTrait for A { + type T = u32; + + fn fn_(arg: u32) -> u32 { + 42 + } + + fn method_(&mut self) -> bool { + false + } +} +struct B { + a: A, +} + +impl SomeTrait for B { + type T = ::T; + + fn fn_(arg: u32) -> u32 { + ::fn_(arg) + } + + fn method_(&mut self) -> bool { + ::method_(&mut self.a) + } +} +``` + + +### `generate_deref` +**Source:** [generate_deref.rs](crates/ide-assists/src/handlers/generate_deref.rs#16) + +Generate `Deref` impl using the given struct field. + +#### Before +```rust +struct A; +struct B { + ┃a: A +} +``` + +#### After +```rust +struct A; +struct B { + a: A +} + +impl core::ops::Deref for B { + type Target = A; + + fn deref(&self) -> &Self::Target { + &self.a + } +} +``` + + +### `generate_derive` +**Source:** [generate_derive.rs](crates/ide-assists/src/handlers/generate_derive.rs#8) + +Adds a new `#[derive()]` clause to a struct or enum. + +#### Before +```rust +struct Point { + x: u32, + y: u32,┃ +} +``` + +#### After +```rust +#[derive(┃)] +struct Point { + x: u32, + y: u32, +} +``` + + +### `generate_doc_example` +**Source:** [generate_documentation_template.rs](crates/ide-assists/src/handlers/generate_documentation_template.rs#76) + +Generates a rustdoc example when editing an item's documentation. + +#### Before +```rust +/// Adds two numbers.┃ +pub fn add(a: i32, b: i32) -> i32 { a + b } +``` + +#### After +```rust +/// Adds two numbers. +/// +/// # Examples +/// +/// ``` +/// use ra_test_fixture::add; +/// +/// assert_eq!(add(a, b), ); +/// ``` +pub fn add(a: i32, b: i32) -> i32 { a + b } +``` + + +### `generate_documentation_template` +**Source:** [generate_documentation_template.rs](crates/ide-assists/src/handlers/generate_documentation_template.rs#13) + +Adds a documentation template above a function definition / declaration. + +#### Before +```rust +pub struct S; +impl S { + pub unsafe fn set_len┃(&mut self, len: usize) -> Result<(), std::io::Error> { + /* ... */ + } +} +``` + +#### After +```rust +pub struct S; +impl S { + /// Sets the length of this [`S`]. + /// + /// # Errors + /// + /// This function will return an error if . + /// + /// # Safety + /// + /// . + pub unsafe fn set_len(&mut self, len: usize) -> Result<(), std::io::Error> { + /* ... */ + } +} +``` + + +### `generate_enum_as_method` +**Source:** [generate_enum_projection_method.rs](crates/ide-assists/src/handlers/generate_enum_projection_method.rs#59) + +Generate an `as_` method for this enum variant. + +#### Before +```rust +enum Value { + Number(i32), + Text(String)┃, +} +``` + +#### After +```rust +enum Value { + Number(i32), + Text(String), +} + +impl Value { + fn as_text(&self) -> Option<&String> { + if let Self::Text(v) = self { + Some(v) + } else { + None + } + } +} +``` + + +### `generate_enum_is_method` +**Source:** [generate_enum_is_method.rs](crates/ide-assists/src/handlers/generate_enum_is_method.rs#11) + +Generate an `is_` method for this enum variant. + +#### Before +```rust +enum Version { + Undefined, + Minor┃, + Major, +} +``` + +#### After +```rust +enum Version { + Undefined, + Minor, + Major, +} + +impl Version { + /// Returns `true` if the version is [`Minor`]. + /// + /// [`Minor`]: Version::Minor + #[must_use] + fn is_minor(&self) -> bool { + matches!(self, Self::Minor) + } +} +``` + + +### `generate_enum_try_into_method` +**Source:** [generate_enum_projection_method.rs](crates/ide-assists/src/handlers/generate_enum_projection_method.rs#12) + +Generate a `try_into_` method for this enum variant. + +#### Before +```rust +enum Value { + Number(i32), + Text(String)┃, +} +``` + +#### After +```rust +enum Value { + Number(i32), + Text(String), +} + +impl Value { + fn try_into_text(self) -> Result { + if let Self::Text(v) = self { + Ok(v) + } else { + Err(self) + } + } +} +``` + + +### `generate_enum_variant` +**Source:** [generate_enum_variant.rs](crates/ide-assists/src/handlers/generate_enum_variant.rs#10) + +Adds a variant to an enum. + +#### Before +```rust +enum Countries { + Ghana, +} + +fn main() { + let country = Countries::Lesotho┃; +} +``` + +#### After +```rust +enum Countries { + Ghana, + Lesotho, +} + +fn main() { + let country = Countries::Lesotho; +} +``` + + +### `generate_fn_type_alias_named` +**Source:** [generate_fn_type_alias.rs](crates/ide-assists/src/handlers/generate_fn_type_alias.rs#10) + +Generate a type alias for the function with named parameters. + +#### Before +```rust +unsafe fn fo┃o(n: i32) -> i32 { 42i32 } +``` + +#### After +```rust +type ${0:FooFn} = unsafe fn(n: i32) -> i32; + +unsafe fn foo(n: i32) -> i32 { 42i32 } +``` + + +### `generate_fn_type_alias_unnamed` +**Source:** [generate_fn_type_alias.rs](crates/ide-assists/src/handlers/generate_fn_type_alias.rs#24) + +Generate a type alias for the function with unnamed parameters. + +#### Before +```rust +unsafe fn fo┃o(n: i32) -> i32 { 42i32 } +``` + +#### After +```rust +type ${0:FooFn} = unsafe fn(i32) -> i32; + +unsafe fn foo(n: i32) -> i32 { 42i32 } +``` + + +### `generate_from_impl_for_enum` +**Source:** [generate_from_impl_for_enum.rs](crates/ide-assists/src/handlers/generate_from_impl_for_enum.rs#8) + +Adds a From impl for this enum variant with one tuple field. + +#### Before +```rust +enum A { ┃One(u32) } +``` + +#### After +```rust +enum A { One(u32) } + +impl From for A { + fn from(v: u32) -> Self { + Self::One(v) + } +} +``` + + +### `generate_function` +**Source:** [generate_function.rs](crates/ide-assists/src/handlers/generate_function.rs#28) + +Adds a stub function with a signature matching the function under the cursor. + +#### Before +```rust +struct Baz; +fn baz() -> Baz { Baz } +fn foo() { + bar┃("", baz()); +} + +``` + +#### After +```rust +struct Baz; +fn baz() -> Baz { Baz } +fn foo() { + bar("", baz()); +} + +fn bar(arg: &str, baz: Baz) ${0:-> _} { + todo!() +} + +``` + + +### `generate_getter` +**Source:** [generate_getter_or_setter.rs](crates/ide-assists/src/handlers/generate_getter_or_setter.rs#73) + +Generate a getter method. + +#### Before +```rust +struct Person { + nam┃e: String, +} +``` + +#### After +```rust +struct Person { + name: String, +} + +impl Person { + fn ┃name(&self) -> &str { + &self.name + } +} +``` + + +### `generate_getter_mut` +**Source:** [generate_getter_or_setter.rs](crates/ide-assists/src/handlers/generate_getter_or_setter.rs#127) + +Generate a mut getter method. + +#### Before +```rust +struct Person { + nam┃e: String, +} +``` + +#### After +```rust +struct Person { + name: String, +} + +impl Person { + fn ┃name_mut(&mut self) -> &mut String { + &mut self.name + } +} +``` + + +### `generate_impl` +**Source:** [generate_impl.rs](crates/ide-assists/src/handlers/generate_impl.rs#20) + +Adds a new inherent impl for a type. + +#### Before +```rust +struct Ctx┃ { + data: T, +} +``` + +#### After +```rust +struct Ctx { + data: T, +} + +impl Ctx {┃} +``` + + +### `generate_is_empty_from_len` +**Source:** [generate_is_empty_from_len.rs](crates/ide-assists/src/handlers/generate_is_empty_from_len.rs#12) + +Generates is_empty implementation from the len method. + +#### Before +```rust +struct MyStruct { data: Vec } + +impl MyStruct { + #[must_use] + p┃ub fn len(&self) -> usize { + self.data.len() + } +} +``` + +#### After +```rust +struct MyStruct { data: Vec } + +impl MyStruct { + #[must_use] + pub fn len(&self) -> usize { + self.data.len() + } + + #[must_use] + pub fn is_empty(&self) -> bool { + self.len() == 0 + } +} +``` + + +### `generate_mut_trait_impl` +**Source:** [generate_mut_trait_impl.rs](crates/ide-assists/src/handlers/generate_mut_trait_impl.rs#12) + +Adds a IndexMut impl from the `Index` trait. + +#### Before +```rust +pub enum Axis { X = 0, Y = 1, Z = 2 } + +impl core::ops::Index┃ for [T; 3] { + type Output = T; + + fn index(&self, index: Axis) -> &Self::Output { + &self[index as usize] + } +} +``` + +#### After +```rust +pub enum Axis { X = 0, Y = 1, Z = 2 } + +┃impl core::ops::IndexMut for [T; 3] { + fn index_mut(&mut self, index: Axis) -> &mut Self::Output { + &self[index as usize] + } +} + +impl core::ops::Index for [T; 3] { + type Output = T; + + fn index(&self, index: Axis) -> &Self::Output { + &self[index as usize] + } +} +``` + + +### `generate_new` +**Source:** [generate_new.rs](crates/ide-assists/src/handlers/generate_new.rs#14) + +Adds a `fn new` for a type. + +#### Before +```rust +struct Ctx { + data: T,┃ +} +``` + +#### After +```rust +struct Ctx { + data: T, +} + +impl Ctx { + fn ┃new(data: T) -> Self { + Self { data } + } +} +``` + + +### `generate_setter` +**Source:** [generate_getter_or_setter.rs](crates/ide-assists/src/handlers/generate_getter_or_setter.rs#13) + +Generate a setter method. + +#### Before +```rust +struct Person { + nam┃e: String, +} +``` + +#### After +```rust +struct Person { + name: String, +} + +impl Person { + fn ┃set_name(&mut self, name: String) { + self.name = name; + } +} +``` + + +### `generate_trait_from_impl` +**Source:** [generate_trait_from_impl.rs](crates/ide-assists/src/handlers/generate_trait_from_impl.rs#18) + +Generate trait for an already defined inherent impl and convert impl to a trait impl. + +#### Before +```rust +struct Foo([i32; N]); + +macro_rules! const_maker { + ($t:ty, $v:tt) => { + const CONST: $t = $v; + }; +} + +impl Fo┃o { + // Used as an associated constant. + const CONST_ASSOC: usize = N * 4; + + fn create() -> Option<()> { + Some(()) + } + + const_maker! {i32, 7} +} +``` + +#### After +```rust +struct Foo([i32; N]); + +macro_rules! const_maker { + ($t:ty, $v:tt) => { + const CONST: $t = $v; + }; +} + +trait ${0:NewTrait} { + // Used as an associated constant. + const CONST_ASSOC: usize = N * 4; + + fn create() -> Option<()>; + + const_maker! {i32, 7} +} + +impl ${0:NewTrait} for Foo { + // Used as an associated constant. + const CONST_ASSOC: usize = N * 4; + + fn create() -> Option<()> { + Some(()) + } + + const_maker! {i32, 7} +} +``` + + +### `generate_trait_impl` +**Source:** [generate_impl.rs](crates/ide-assists/src/handlers/generate_impl.rs#66) + +Adds a new trait impl for a type. + +#### Before +```rust +struct ┃Ctx { + data: T, +} +``` + +#### After +```rust +struct Ctx { + data: T, +} + +impl ${0:_} for Ctx {} +``` + + +### `inline_call` +**Source:** [inline_call.rs](crates/ide-assists/src/handlers/inline_call.rs#170) + +Inlines a function or method body creating a `let` statement per parameter unless the parameter +can be inlined. The parameter will be inlined either if it the supplied argument is a simple local +or if the parameter is only accessed inside the function body once. + +#### Before +```rust +fn foo(name: Option<&str>) { + let name = name.unwrap┃(); +} +``` + +#### After +```rust +fn foo(name: Option<&str>) { + let name = match name { + Some(val) => val, + None => panic!("called `Option::unwrap()` on a `None` value"), + }; +} +``` + + +### `inline_const_as_literal` +**Source:** [inline_const_as_literal.rs](crates/ide-assists/src/handlers/inline_const_as_literal.rs#6) + +Evaluate and inline const variable as literal. + +#### Before +```rust +const STRING: &str = "Hello, World!"; + +fn something() -> &'static str { + STRING┃ +} +``` + +#### After +```rust +const STRING: &str = "Hello, World!"; + +fn something() -> &'static str { + "Hello, World!" +} +``` + + +### `inline_into_callers` +**Source:** [inline_call.rs](crates/ide-assists/src/handlers/inline_call.rs#32) + +Inline a function or method body into all of its callers where possible, creating a `let` statement per parameter +unless the parameter can be inlined. The parameter will be inlined either if it the supplied argument is a simple local +or if the parameter is only accessed inside the function body once. +If all calls can be inlined the function will be removed. + +#### Before +```rust +fn print(_: &str) {} +fn foo┃(word: &str) { + if !word.is_empty() { + print(word); + } +} +fn bar() { + foo("안녕하세요"); + foo("여러분"); +} +``` + +#### After +```rust +fn print(_: &str) {} + +fn bar() { + { + let word: &str = "안녕하세요"; + if !word.is_empty() { + print(word); + } + }; + { + let word: &str = "여러분"; + if !word.is_empty() { + print(word); + } + }; +} +``` + + +### `inline_local_variable` +**Source:** [inline_local_variable.rs](crates/ide-assists/src/handlers/inline_local_variable.rs#17) + +Inlines a local variable. + +#### Before +```rust +fn main() { + let x┃ = 1 + 2; + x * 4; +} +``` + +#### After +```rust +fn main() { + (1 + 2) * 4; +} +``` + + +### `inline_macro` +**Source:** [inline_macro.rs](crates/ide-assists/src/handlers/inline_macro.rs#7) + +Takes a macro and inlines it one step. + +#### Before +```rust +macro_rules! num { + (+$($t:tt)+) => (1 + num!($($t )+)); + (-$($t:tt)+) => (-1 + num!($($t )+)); + (+) => (1); + (-) => (-1); +} + +fn main() { + let number = num┃!(+ + + - + +); + println!("{number}"); +} +``` + +#### After +```rust +macro_rules! num { + (+$($t:tt)+) => (1 + num!($($t )+)); + (-$($t:tt)+) => (-1 + num!($($t )+)); + (+) => (1); + (-) => (-1); +} + +fn main() { + let number = 1+num!(+ + - + +); + println!("{number}"); +} +``` + + +### `inline_type_alias` +**Source:** [inline_type_alias.rs](crates/ide-assists/src/handlers/inline_type_alias.rs#106) + +Replace a type alias with its concrete type. + +#### Before +```rust +type A = Vec; + +fn main() { + let a: ┃A; +} +``` + +#### After +```rust +type A = Vec; + +fn main() { + let a: Vec; +} +``` + + +### `inline_type_alias_uses` +**Source:** [inline_type_alias.rs](crates/ide-assists/src/handlers/inline_type_alias.rs#24) + +Inline a type alias into all of its uses where possible. + +#### Before +```rust +type ┃A = i32; +fn id(x: A) -> A { + x +}; +fn foo() { + let _: A = 3; +} +``` + +#### After +```rust + +fn id(x: i32) -> i32 { + x +}; +fn foo() { + let _: i32 = 3; +} +``` + + +### `into_to_qualified_from` +**Source:** [into_to_qualified_from.rs](crates/ide-assists/src/handlers/into_to_qualified_from.rs#10) + +Convert an `into` method call to a fully qualified `from` call. + +#### Before +```rust +//- minicore: from +struct B; +impl From for B { + fn from(a: i32) -> Self { + B + } +} + +fn main() -> () { + let a = 3; + let b: B = a.in┃to(); +} +``` + +#### After +```rust +struct B; +impl From for B { + fn from(a: i32) -> Self { + B + } +} + +fn main() -> () { + let a = 3; + let b: B = B::from(a); +} +``` + + +### `introduce_named_generic` +**Source:** [introduce_named_generic.rs](crates/ide-assists/src/handlers/introduce_named_generic.rs#7) + +Replaces `impl Trait` function argument with the named generic. + +#### Before +```rust +fn foo(bar: ┃impl Bar) {} +``` + +#### After +```rust +fn foo<┃B: Bar>(bar: B) {} +``` + + +### `introduce_named_lifetime` +**Source:** [introduce_named_lifetime.rs](crates/ide-assists/src/handlers/introduce_named_lifetime.rs#13) + +Change an anonymous lifetime to a named lifetime. + +#### Before +```rust +impl Cursor<'_┃> { + fn node(self) -> &SyntaxNode { + match self { + Cursor::Replace(node) | Cursor::Before(node) => node, + } + } +} +``` + +#### After +```rust +impl<'a> Cursor<'a> { + fn node(self) -> &SyntaxNode { + match self { + Cursor::Replace(node) | Cursor::Before(node) => node, + } + } +} +``` + + +### `invert_if` +**Source:** [invert_if.rs](crates/ide-assists/src/handlers/invert_if.rs#13) + +This transforms if expressions of the form `if !x {A} else {B}` into `if x {B} else {A}` +This also works with `!=`. This assist can only be applied with the cursor on `if`. + +#### Before +```rust +fn main() { + if┃ !y { A } else { B } +} +``` + +#### After +```rust +fn main() { + if y { B } else { A } +} +``` + + +### `line_to_block` +**Source:** [convert_comment_block.rs](crates/ide-assists/src/handlers/convert_comment_block.rs#9) + +Converts comments between block and single-line form. + +#### Before +```rust + // Multi-line┃ + // comment +``` + +#### After +```rust + /* + Multi-line + comment + */ +``` + + +### `make_raw_string` +**Source:** [raw_string.rs](crates/ide-assists/src/handlers/raw_string.rs#7) + +Adds `r#` to a plain string literal. + +#### Before +```rust +fn main() { + "Hello,┃ World!"; +} +``` + +#### After +```rust +fn main() { + r#"Hello, World!"#; +} +``` + + +### `make_usual_string` +**Source:** [raw_string.rs](crates/ide-assists/src/handlers/raw_string.rs#47) + +Turns a raw string into a plain string. + +#### Before +```rust +fn main() { + r#"Hello,┃ "World!""#; +} +``` + +#### After +```rust +fn main() { + "Hello, \"World!\""; +} +``` + + +### `merge_imports` +**Source:** [merge_imports.rs](crates/ide-assists/src/handlers/merge_imports.rs#21) + +Merges neighbor imports with a common prefix. + +#### Before +```rust +use std::┃fmt::Formatter; +use std::io; +``` + +#### After +```rust +use std::{fmt::Formatter, io}; +``` + + +### `merge_match_arms` +**Source:** [merge_match_arms.rs](crates/ide-assists/src/handlers/merge_match_arms.rs#12) + +Merges the current match arm with the following if their bodies are identical. + +#### Before +```rust +enum Action { Move { distance: u32 }, Stop } + +fn handle(action: Action) { + match action { + ┃Action::Move(..) => foo(), + Action::Stop => foo(), + } +} +``` + +#### After +```rust +enum Action { Move { distance: u32 }, Stop } + +fn handle(action: Action) { + match action { + Action::Move(..) | Action::Stop => foo(), + } +} +``` + + +### `merge_nested_if` +**Source:** [merge_nested_if.rs](crates/ide-assists/src/handlers/merge_nested_if.rs#11) + +This transforms if expressions of the form `if x { if y {A} }` into `if x && y {A}` +This assist can only be applied with the cursor on `if`. + +#### Before +```rust +fn main() { + i┃f x == 3 { if y == 4 { 1 } } +} +``` + +#### After +```rust +fn main() { + if x == 3 && y == 4 { 1 } +} +``` + + +### `move_arm_cond_to_match_guard` +**Source:** [move_guard.rs](crates/ide-assists/src/handlers/move_guard.rs#69) + +Moves if expression from match arm body into a guard. + +#### Before +```rust +enum Action { Move { distance: u32 }, Stop } + +fn handle(action: Action) { + match action { + Action::Move { distance } => ┃if distance > 10 { foo() }, + _ => (), + } +} +``` + +#### After +```rust +enum Action { Move { distance: u32 }, Stop } + +fn handle(action: Action) { + match action { + Action::Move { distance } if distance > 10 => foo(), + _ => (), + } +} +``` + + +### `move_bounds_to_where_clause` +**Source:** [move_bounds.rs](crates/ide-assists/src/handlers/move_bounds.rs#12) + +Moves inline type bounds to a where clause. + +#### Before +```rust +fn apply U>(f: F, x: T) -> U { + f(x) +} +``` + +#### After +```rust +fn apply(f: F, x: T) -> U where F: FnOnce(T) -> U { + f(x) +} +``` + + +### `move_const_to_impl` +**Source:** [move_const_to_impl.rs](crates/ide-assists/src/handlers/move_const_to_impl.rs#14) + +Move a local constant item in a method to impl's associated constant. All the references will be +qualified with `Self::`. + +#### Before +```rust +struct S; +impl S { + fn foo() -> usize { + /// The answer. + const C┃: usize = 42; + + C * C + } +} +``` + +#### After +```rust +struct S; +impl S { + /// The answer. + const C: usize = 42; + + fn foo() -> usize { + Self::C * Self::C + } +} +``` + + +### `move_from_mod_rs` +**Source:** [move_from_mod_rs.rs](crates/ide-assists/src/handlers/move_from_mod_rs.rs#12) + +Moves xxx/mod.rs to xxx.rs. + +#### Before +```rust +//- /main.rs +mod a; +//- /a/mod.rs +┃fn t() {}┃ +``` + +#### After +```rust +fn t() {} +``` + + +### `move_guard_to_arm_body` +**Source:** [move_guard.rs](crates/ide-assists/src/handlers/move_guard.rs#8) + +Moves match guard into match arm body. + +#### Before +```rust +enum Action { Move { distance: u32 }, Stop } + +fn handle(action: Action) { + match action { + Action::Move { distance } ┃if distance > 10 => foo(), + _ => (), + } +} +``` + +#### After +```rust +enum Action { Move { distance: u32 }, Stop } + +fn handle(action: Action) { + match action { + Action::Move { distance } => if distance > 10 { + foo() + }, + _ => (), + } +} +``` + + +### `move_module_to_file` +**Source:** [move_module_to_file.rs](crates/ide-assists/src/handlers/move_module_to_file.rs#15) + +Moves inline module's contents to a separate file. + +#### Before +```rust +mod ┃foo { + fn t() {} +} +``` + +#### After +```rust +mod foo; +``` + + +### `move_to_mod_rs` +**Source:** [move_to_mod_rs.rs](crates/ide-assists/src/handlers/move_to_mod_rs.rs#12) + +Moves xxx.rs to xxx/mod.rs. + +#### Before +```rust +//- /main.rs +mod a; +//- /a.rs +┃fn t() {}┃ +``` + +#### After +```rust +fn t() {} +``` + + +### `normalize_import` +**Source:** [normalize_import.rs](crates/ide-assists/src/handlers/normalize_import.rs#9) + +Normalizes an import. + +#### Before +```rust +use┃ std::{io, {fmt::Formatter}}; +``` + +#### After +```rust +use std::{fmt::Formatter, io}; +``` + + +### `promote_local_to_const` +**Source:** [promote_local_to_const.rs](crates/ide-assists/src/handlers/promote_local_to_const.rs#17) + +Promotes a local variable to a const item changing its name to a `SCREAMING_SNAKE_CASE` variant +if the local uses no non-const expressions. + +#### Before +```rust +fn main() { + let foo┃ = true; + + if foo { + println!("It's true"); + } else { + println!("It's false"); + } +} +``` + +#### After +```rust +fn main() { + const ┃FOO: bool = true; + + if FOO { + println!("It's true"); + } else { + println!("It's false"); + } +} +``` + + +### `pull_assignment_up` +**Source:** [pull_assignment_up.rs](crates/ide-assists/src/handlers/pull_assignment_up.rs#11) + +Extracts variable assignment to outside an if or match statement. + +#### Before +```rust +fn main() { + let mut foo = 6; + + if true { + ┃foo = 5; + } else { + foo = 4; + } +} +``` + +#### After +```rust +fn main() { + let mut foo = 6; + + foo = if true { + 5 + } else { + 4 + }; +} +``` + + +### `qualify_method_call` +**Source:** [qualify_method_call.rs](crates/ide-assists/src/handlers/qualify_method_call.rs#10) + +Replaces the method call with a qualified function call. + +#### Before +```rust +struct Foo; +impl Foo { + fn foo(&self) {} +} +fn main() { + let foo = Foo; + foo.fo┃o(); +} +``` + +#### After +```rust +struct Foo; +impl Foo { + fn foo(&self) {} +} +fn main() { + let foo = Foo; + Foo::foo(&foo); +} +``` + + +### `qualify_path` +**Source:** [qualify_path.rs](crates/ide-assists/src/handlers/qualify_path.rs#24) + +If the name is unresolved, provides all possible qualified paths for it. + +#### Before +```rust +fn main() { + let map = HashMap┃::new(); +} +``` + +#### After +```rust +fn main() { + let map = std::collections::HashMap::new(); +} +``` + + +### `reformat_number_literal` +**Source:** [number_representation.rs](crates/ide-assists/src/handlers/number_representation.rs#7) + +Adds or removes separators from integer literal. + +#### Before +```rust +const _: i32 = 1012345┃; +``` + +#### After +```rust +const _: i32 = 1_012_345; +``` + + +### `remove_dbg` +**Source:** [remove_dbg.rs](crates/ide-assists/src/handlers/remove_dbg.rs#9) + +Removes `dbg!()` macro call. + +#### Before +```rust +fn main() { + let x = ┃dbg!(42 * dbg!(4 + 2));┃ +} +``` + +#### After +```rust +fn main() { + let x = 42 * (4 + 2); +} +``` + + +### `remove_hash` +**Source:** [raw_string.rs](crates/ide-assists/src/handlers/raw_string.rs#117) + +Removes a hash from a raw string literal. + +#### Before +```rust +fn main() { + r#"Hello,┃ World!"#; +} +``` + +#### After +```rust +fn main() { + r"Hello, World!"; +} +``` + + +### `remove_mut` +**Source:** [remove_mut.rs](crates/ide-assists/src/handlers/remove_mut.rs#5) + +Removes the `mut` keyword. + +#### Before +```rust +impl Walrus { + fn feed(&mut┃ self, amount: u32) {} +} +``` + +#### After +```rust +impl Walrus { + fn feed(&self, amount: u32) {} +} +``` + + +### `remove_parentheses` +**Source:** [remove_parentheses.rs](crates/ide-assists/src/handlers/remove_parentheses.rs#5) + +Removes redundant parentheses. + +#### Before +```rust +fn main() { + _ = ┃(2) + 2; +} +``` + +#### After +```rust +fn main() { + _ = 2 + 2; +} +``` + + +### `remove_unused_imports` +**Source:** [remove_unused_imports.rs](crates/ide-assists/src/handlers/remove_unused_imports.rs#17) + +Removes any use statements in the current selection that are unused. + +#### Before +```rust +struct X(); +mod foo { + use super::X┃; +} +``` + +#### After +```rust +struct X(); +mod foo { +} +``` + + +### `remove_unused_param` +**Source:** [remove_unused_param.rs](crates/ide-assists/src/handlers/remove_unused_param.rs#15) + +Removes unused function parameter. + +#### Before +```rust +fn frobnicate(x: i32┃) {} + +fn main() { + frobnicate(92); +} +``` + +#### After +```rust +fn frobnicate() {} + +fn main() { + frobnicate(); +} +``` + + +### `reorder_fields` +**Source:** [reorder_fields.rs](crates/ide-assists/src/handlers/reorder_fields.rs#8) + +Reorder the fields of record literals and record patterns in the same order as in +the definition. + +#### Before +```rust +struct Foo {foo: i32, bar: i32}; +const test: Foo = ┃Foo {bar: 0, foo: 1} +``` + +#### After +```rust +struct Foo {foo: i32, bar: i32}; +const test: Foo = Foo {foo: 1, bar: 0} +``` + + +### `reorder_impl_items` +**Source:** [reorder_impl_items.rs](crates/ide-assists/src/handlers/reorder_impl_items.rs#11) + +Reorder the items of an `impl Trait`. The items will be ordered +in the same order as in the trait definition. + +#### Before +```rust +trait Foo { + type A; + const B: u8; + fn c(); +} + +struct Bar; +┃impl Foo for Bar┃ { + const B: u8 = 17; + fn c() {} + type A = String; +} +``` + +#### After +```rust +trait Foo { + type A; + const B: u8; + fn c(); +} + +struct Bar; +impl Foo for Bar { + type A = String; + const B: u8 = 17; + fn c() {} +} +``` + + +### `replace_arith_with_checked` +**Source:** [replace_arith_op.rs](crates/ide-assists/src/handlers/replace_arith_op.rs#9) + +Replaces arithmetic on integers with the `checked_*` equivalent. + +#### Before +```rust +fn main() { + let x = 1 ┃+ 2; +} +``` + +#### After +```rust +fn main() { + let x = 1.checked_add(2); +} +``` + + +### `replace_arith_with_saturating` +**Source:** [replace_arith_op.rs](crates/ide-assists/src/handlers/replace_arith_op.rs#28) + +Replaces arithmetic on integers with the `saturating_*` equivalent. + +#### Before +```rust +fn main() { + let x = 1 ┃+ 2; +} +``` + +#### After +```rust +fn main() { + let x = 1.saturating_add(2); +} +``` + + +### `replace_arith_with_wrapping` +**Source:** [replace_arith_op.rs](crates/ide-assists/src/handlers/replace_arith_op.rs#50) + +Replaces arithmetic on integers with the `wrapping_*` equivalent. + +#### Before +```rust +fn main() { + let x = 1 ┃+ 2; +} +``` + +#### After +```rust +fn main() { + let x = 1.wrapping_add(2); +} +``` + + +### `replace_char_with_string` +**Source:** [replace_string_with_char.rs](crates/ide-assists/src/handlers/replace_string_with_char.rs#51) + +Replace a char literal with a string literal. + +#### Before +```rust +fn main() { + find('{┃'); +} +``` + +#### After +```rust +fn main() { + find("{"); +} +``` + + +### `replace_derive_with_manual_impl` +**Source:** [replace_derive_with_manual_impl.rs](crates/ide-assists/src/handlers/replace_derive_with_manual_impl.rs#20) + +Converts a `derive` impl into a manual one. + +#### Before +```rust +#[derive(Deb┃ug, Display)] +struct S; +``` + +#### After +```rust +#[derive(Display)] +struct S; + +impl Debug for S { + ┃fn fmt(&self, f: &mut Formatter) -> Result<()> { + f.debug_struct("S").finish() + } +} +``` + + +### `replace_if_let_with_match` +**Source:** [replace_if_let_with_match.rs](crates/ide-assists/src/handlers/replace_if_let_with_match.rs#20) + +Replaces a `if let` expression with a `match` expression. + +#### Before +```rust +enum Action { Move { distance: u32 }, Stop } + +fn handle(action: Action) { + ┃if let Action::Move { distance } = action { + foo(distance) + } else { + bar() + } +} +``` + +#### After +```rust +enum Action { Move { distance: u32 }, Stop } + +fn handle(action: Action) { + match action { + Action::Move { distance } => foo(distance), + _ => bar(), + } +} +``` + + +### `replace_is_some_with_if_let_some` +**Source:** [replace_is_method_with_if_let_method.rs](crates/ide-assists/src/handlers/replace_is_method_with_if_let_method.rs#9) + +Replace `if x.is_some()` with `if let Some(_tmp) = x` or `if x.is_ok()` with `if let Ok(_tmp) = x`. + +#### Before +```rust +fn main() { + let x = Some(1); + if x.is_som┃e() {} +} +``` + +#### After +```rust +fn main() { + let x = Some(1); + if let Some(${0:x1}) = x {} +} +``` + + +### `replace_let_with_if_let` +**Source:** [replace_let_with_if_let.rs](crates/ide-assists/src/handlers/replace_let_with_if_let.rs#9) + +Replaces `let` with an `if let`. + +#### Before +```rust + +fn main(action: Action) { + ┃let x = compute(); +} + +fn compute() -> Option { None } +``` + +#### After +```rust + +fn main(action: Action) { + if let Some(x) = compute() { + } +} + +fn compute() -> Option { None } +``` + + +### `replace_match_with_if_let` +**Source:** [replace_if_let_with_match.rs](crates/ide-assists/src/handlers/replace_if_let_with_match.rs#188) + +Replaces a binary `match` with a wildcard pattern and no guards with an `if let` expression. + +#### Before +```rust +enum Action { Move { distance: u32 }, Stop } + +fn handle(action: Action) { + ┃match action { + Action::Move { distance } => foo(distance), + _ => bar(), + } +} +``` + +#### After +```rust +enum Action { Move { distance: u32 }, Stop } + +fn handle(action: Action) { + if let Action::Move { distance } = action { + foo(distance) + } else { + bar() + } +} +``` + + +### `replace_named_generic_with_impl` +**Source:** [replace_named_generic_with_impl.rs](crates/ide-assists/src/handlers/replace_named_generic_with_impl.rs#18) + +Replaces named generic with an `impl Trait` in function argument. + +#### Before +```rust +fn new>(location: P) -> Self {} +``` + +#### After +```rust +fn new(location: impl AsRef) -> Self {} +``` + + +### `replace_qualified_name_with_use` +**Source:** [replace_qualified_name_with_use.rs](crates/ide-assists/src/handlers/replace_qualified_name_with_use.rs#13) + +Adds a use statement for a given fully-qualified name. + +#### Before +```rust +fn process(map: std::collections::┃HashMap) {} +``` + +#### After +```rust +use std::collections::HashMap; + +fn process(map: HashMap) {} +``` + + +### `replace_string_with_char` +**Source:** [replace_string_with_char.rs](crates/ide-assists/src/handlers/replace_string_with_char.rs#11) + +Replace string literal with char literal. + +#### Before +```rust +fn main() { + find("{┃"); +} +``` + +#### After +```rust +fn main() { + find('{'); +} +``` + + +### `replace_try_expr_with_match` +**Source:** [replace_try_expr_with_match.rs](crates/ide-assists/src/handlers/replace_try_expr_with_match.rs#18) + +Replaces a `try` expression with a `match` expression. + +#### Before +```rust +fn handle() { + let pat = Some(true)┃?; +} +``` + +#### After +```rust +fn handle() { + let pat = match Some(true) { + Some(it) => it, + None => return None, + }; +} +``` + + +### `replace_turbofish_with_explicit_type` +**Source:** [replace_turbofish_with_explicit_type.rs](crates/ide-assists/src/handlers/replace_turbofish_with_explicit_type.rs#12) + +Converts `::<_>` to an explicit type assignment. + +#### Before +```rust +fn make() -> T { ) } +fn main() { + let a = make┃::(); +} +``` + +#### After +```rust +fn make() -> T { ) } +fn main() { + let a: i32 = make(); +} +``` + + +### `replace_with_eager_method` +**Source:** [replace_method_eager_lazy.rs](crates/ide-assists/src/handlers/replace_method_eager_lazy.rs#89) + +Replace `unwrap_or_else` with `unwrap_or` and `ok_or_else` with `ok_or`. + +#### Before +```rust +fn foo() { + let a = Some(1); + a.unwra┃p_or_else(|| 2); +} +``` + +#### After +```rust +fn foo() { + let a = Some(1); + a.unwrap_or(2); +} +``` + + +### `replace_with_lazy_method` +**Source:** [replace_method_eager_lazy.rs](crates/ide-assists/src/handlers/replace_method_eager_lazy.rs#9) + +Replace `unwrap_or` with `unwrap_or_else` and `ok_or` with `ok_or_else`. + +#### Before +```rust +fn foo() { + let a = Some(1); + a.unwra┃p_or(2); +} +``` + +#### After +```rust +fn foo() { + let a = Some(1); + a.unwrap_or_else(|| 2); +} +``` + + +### `sort_items` +**Source:** [sort_items.rs](crates/ide-assists/src/handlers/sort_items.rs#12) + +Sorts item members alphabetically: fields, enum variants and methods. + +#### Before +```rust +struct ┃Foo┃ { second: u32, first: String } +``` + +#### After +```rust +struct Foo { first: String, second: u32 } +``` + +--- + +#### Before +```rust +trait ┃Bar┃ { + fn second(&self) -> u32; + fn first(&self) -> String; +} +``` + +#### After +```rust +trait Bar { + fn first(&self) -> String; + fn second(&self) -> u32; +} +``` + +--- + +#### Before +```rust +struct Baz; +impl ┃Baz┃ { + fn second(&self) -> u32; + fn first(&self) -> String; +} +``` + +#### After +```rust +struct Baz; +impl Baz { + fn first(&self) -> String; + fn second(&self) -> u32; +} +``` + +--- +There is a difference between sorting enum variants: + +#### Before +```rust +enum ┃Animal┃ { + Dog(String, f64), + Cat { weight: f64, name: String }, +} +``` + +#### After +```rust +enum Animal { + Cat { weight: f64, name: String }, + Dog(String, f64), +} +``` + +and sorting a single enum struct variant: + +#### Before +```rust +enum Animal { + Dog(String, f64), + Cat ┃{ weight: f64, name: String }┃, +} +``` + +#### After +```rust +enum Animal { + Dog(String, f64), + Cat { name: String, weight: f64 }, +} +``` + + +### `split_import` +**Source:** [split_import.rs](crates/ide-assists/src/handlers/split_import.rs#5) + +Wraps the tail of import into braces. + +#### Before +```rust +use std::┃collections::HashMap; +``` + +#### After +```rust +use std::{collections::HashMap}; +``` + + +### `sugar_impl_future_into_async` +**Source:** [toggle_async_sugar.rs](crates/ide-assists/src/handlers/toggle_async_sugar.rs#13) + +Rewrites asynchronous function from `-> impl Future` into `async fn`. +This action does not touch the function body and therefore `async { 0 }` +block does not transform to just `0`. + +#### Before +```rust +pub fn foo() -> impl core::future::F┃uture { + async { 0 } +} +``` + +#### After +```rust +pub async fn foo() -> usize { + async { 0 } +} +``` + + +### `toggle_ignore` +**Source:** [toggle_ignore.rs](crates/ide-assists/src/handlers/toggle_ignore.rs#8) + +Adds `#[ignore]` attribute to the test. + +#### Before +```rust +┃#[test] +fn arithmetics { + assert_eq!(2 + 2, 5); +} +``` + +#### After +```rust +#[test] +#[ignore] +fn arithmetics { + assert_eq!(2 + 2, 5); +} +``` + + +### `toggle_macro_delimiter` +**Source:** [toggle_macro_delimiter.rs](crates/ide-assists/src/handlers/toggle_macro_delimiter.rs#9) + +Change macro delimiters in the order of `( -> { -> [ -> (`. + +#### Before +```rust +macro_rules! sth { + () => {}; +} + +sth!┃( ); +``` + +#### After +```rust +macro_rules! sth { + () => {}; +} + +sth!{ } +``` + + +### `unmerge_match_arm` +**Source:** [unmerge_match_arm.rs](crates/ide-assists/src/handlers/unmerge_match_arm.rs#10) + +Splits the current match with a `|` pattern into two arms with identical bodies. + +#### Before +```rust +enum Action { Move { distance: u32 }, Stop } + +fn handle(action: Action) { + match action { + Action::Move(..) ┃| Action::Stop => foo(), + } +} +``` + +#### After +```rust +enum Action { Move { distance: u32 }, Stop } + +fn handle(action: Action) { + match action { + Action::Move(..) => foo(), + Action::Stop => foo(), + } +} +``` + + +### `unmerge_use` +**Source:** [unmerge_use.rs](crates/ide-assists/src/handlers/unmerge_use.rs#12) + +Extracts single use item from use list. + +#### Before +```rust +use std::fmt::{Debug, Display┃}; +``` + +#### After +```rust +use std::fmt::{Debug}; +use std::fmt::Display; +``` + + +### `unnecessary_async` +**Source:** [unnecessary_async.rs](crates/ide-assists/src/handlers/unnecessary_async.rs#17) + +Removes the `async` mark from functions which have no `.await` in their body. +Looks for calls to the functions and removes the `.await` on the call site. + +#### Before +```rust +pub asy┃nc fn foo() {} +pub async fn bar() { foo().await } +``` + +#### After +```rust +pub fn foo() {} +pub async fn bar() { foo() } +``` + + +### `unqualify_method_call` +**Source:** [unqualify_method_call.rs](crates/ide-assists/src/handlers/unqualify_method_call.rs#9) + +Transforms universal function call syntax into a method call. + +#### Before +```rust +fn main() { + std::ops::Add::add┃(1, 2); +} +``` + +#### After +```rust +use std::ops::Add; + +fn main() { + 1.add(2); +} +``` + + +### `unwrap_block` +**Source:** [unwrap_block.rs](crates/ide-assists/src/handlers/unwrap_block.rs#12) + +This assist removes if...else, for, while and loop control statements to just keep the body. + +#### Before +```rust +fn foo() { + if true {┃ + println!("foo"); + } +} +``` + +#### After +```rust +fn foo() { + println!("foo"); +} +``` + + +### `unwrap_option_return_type` +**Source:** [unwrap_return_type.rs](crates/ide-assists/src/handlers/unwrap_return_type.rs#13) + +Unwrap the function's return type. + +#### Before +```rust +fn foo() -> Option┃ { Some(42i32) } +``` + +#### After +```rust +fn foo() -> i32 { 42i32 } +``` + + +### `unwrap_result_return_type` +**Source:** [unwrap_return_type.rs](crates/ide-assists/src/handlers/unwrap_return_type.rs#26) + +Unwrap the function's return type. + +#### Before +```rust +fn foo() -> Result┃ { Ok(42i32) } +``` + +#### After +```rust +fn foo() -> i32 { 42i32 } +``` + + +### `unwrap_tuple` +**Source:** [unwrap_tuple.rs](crates/ide-assists/src/handlers/unwrap_tuple.rs#8) + +Unwrap the tuple to different variables. + +#### Before +```rust +fn main() { + ┃let (foo, bar) = ("Foo", "Bar"); +} +``` + +#### After +```rust +fn main() { + let foo = "Foo"; + let bar = "Bar"; +} +``` + + +### `wrap_return_type_in_option` +**Source:** [wrap_return_type.rs](crates/ide-assists/src/handlers/wrap_return_type.rs#16) + +Wrap the function's return type into Option. + +#### Before +```rust +fn foo() -> i32┃ { 42i32 } +``` + +#### After +```rust +fn foo() -> Option { Some(42i32) } +``` + + +### `wrap_return_type_in_result` +**Source:** [wrap_return_type.rs](crates/ide-assists/src/handlers/wrap_return_type.rs#29) + +Wrap the function's return type into Result. + +#### Before +```rust +fn foo() -> i32┃ { 42i32 } +``` + +#### After +```rust +fn foo() -> Result { Ok(42i32) } +``` + + +### `wrap_unwrap_cfg_attr` +**Source:** [wrap_unwrap_cfg_attr.rs](crates/ide-assists/src/handlers/wrap_unwrap_cfg_attr.rs#12) + +Wraps an attribute to a cfg_attr attribute or unwraps a cfg_attr attribute to the inner attributes. + +#### Before +```rust +#[derive┃(Debug)] +struct S { + field: i32 +} +``` + +#### After +```rust +#[cfg_attr(┃, derive(Debug))] +struct S { + field: i32 +} +``` diff --git a/src/tools/rust-analyzer/docs/book/src/diagnostics_generated.md b/src/tools/rust-analyzer/docs/book/src/diagnostics_generated.md new file mode 100644 index 0000000000000..d34c459ad0258 --- /dev/null +++ b/src/tools/rust-analyzer/docs/book/src/diagnostics_generated.md @@ -0,0 +1,516 @@ +//! Generated by `cargo xtask codegen diagnostics-docs`, do not edit by hand. + +#### attribute-expansion-disabled + +Source: [macro_error.rs](crates/ide-diagnostics/src/handlers/macro_error.rs#7) + + +This diagnostic is shown for attribute proc macros when attribute expansions have been disabled. + + + + +#### await-outside-of-async + +Source: [await_outside_of_async.rs](crates/ide-diagnostics/src/handlers/await_outside_of_async.rs#3) + + +This diagnostic is triggered if the `await` keyword is used outside of an async function or block + + + + +#### break-outside-of-loop + +Source: [break_outside_of_loop.rs](crates/ide-diagnostics/src/handlers/break_outside_of_loop.rs#3) + + +This diagnostic is triggered if the `break` keyword is used outside of a loop. + + + + +#### cast-to-unsized + +Source: [invalid_cast.rs](crates/ide-diagnostics/src/handlers/invalid_cast.rs#106) + + +This diagnostic is triggered when casting to an unsized type + + + + +#### expected-function + +Source: [expected_function.rs](crates/ide-diagnostics/src/handlers/expected_function.rs#5) + + +This diagnostic is triggered if a call is made on something that is not callable. + + + + +#### generic-args-prohibited + +Source: [generic_args_prohibited.rs](crates/ide-diagnostics/src/handlers/generic_args_prohibited.rs#10) + + +This diagnostic is shown when generic arguments are provided for a type that does not accept +generic arguments. + + + + +#### inactive-code + +Source: [inactive_code.rs](crates/ide-diagnostics/src/handlers/inactive_code.rs#6) + + +This diagnostic is shown for code with inactive `#[cfg]` attributes. + + + + +#### incoherent-impl + +Source: [incoherent_impl.rs](crates/ide-diagnostics/src/handlers/incoherent_impl.rs#6) + + +This diagnostic is triggered if the targe type of an impl is from a foreign crate. + + + + +#### incorrect-ident-case + +Source: [incorrect_case.rs](crates/ide-diagnostics/src/handlers/incorrect_case.rs#13) + + +This diagnostic is triggered if an item name doesn't follow [Rust naming convention](https://doc.rust-lang.org/1.0.0/style/style/naming/README.html). + + + + +#### invalid-cast + +Source: [invalid_cast.rs](crates/ide-diagnostics/src/handlers/invalid_cast.rs#18) + + +This diagnostic is triggered if the code contains an illegal cast + + + + +#### invalid-derive-target + +Source: [invalid_derive_target.rs](crates/ide-diagnostics/src/handlers/invalid_derive_target.rs#3) + + +This diagnostic is shown when the derive attribute is used on an item other than a `struct`, +`enum` or `union`. + + + + +#### macro-def-error + +Source: [macro_error.rs](crates/ide-diagnostics/src/handlers/macro_error.rs#24) + + +This diagnostic is shown for macro expansion errors. + + + + +#### macro-error + +Source: [macro_error.rs](crates/ide-diagnostics/src/handlers/macro_error.rs#3) + + +This diagnostic is shown for macro expansion errors. + + + + +#### malformed-derive + +Source: [malformed_derive.rs](crates/ide-diagnostics/src/handlers/malformed_derive.rs#3) + + +This diagnostic is shown when the derive attribute has invalid input. + + + + +#### mismatched-arg-count + +Source: [mismatched_arg_count.rs](crates/ide-diagnostics/src/handlers/mismatched_arg_count.rs#31) + + +This diagnostic is triggered if a function is invoked with an incorrect amount of arguments. + + + + +#### mismatched-tuple-struct-pat-arg-count + +Source: [mismatched_arg_count.rs](crates/ide-diagnostics/src/handlers/mismatched_arg_count.rs#11) + + +This diagnostic is triggered if a function is invoked with an incorrect amount of arguments. + + + + +#### missing-fields + +Source: [missing_fields.rs](crates/ide-diagnostics/src/handlers/missing_fields.rs#19) + + +This diagnostic is triggered if record lacks some fields that exist in the corresponding structure. + +Example: + +```rust +struct A { a: u8, b: u8 } + +let a = A { a: 10 }; +``` + + + + +#### missing-match-arm + +Source: [missing_match_arms.rs](crates/ide-diagnostics/src/handlers/missing_match_arms.rs#3) + + +This diagnostic is triggered if `match` block is missing one or more match arms. + + + + +#### missing-unsafe + +Source: [missing_unsafe.rs](crates/ide-diagnostics/src/handlers/missing_unsafe.rs#10) + + +This diagnostic is triggered if an operation marked as `unsafe` is used outside of an `unsafe` function or block. + + + + +#### moved-out-of-ref + +Source: [moved_out_of_ref.rs](crates/ide-diagnostics/src/handlers/moved_out_of_ref.rs#4) + + +This diagnostic is triggered on moving non copy things out of references. + + + + +#### need-mut + +Source: [mutability_errors.rs](crates/ide-diagnostics/src/handlers/mutability_errors.rs#8) + + +This diagnostic is triggered on mutating an immutable variable. + + + + +#### no-such-field + +Source: [no_such_field.rs](crates/ide-diagnostics/src/handlers/no_such_field.rs#12) + + +This diagnostic is triggered if created structure does not have field provided in record. + + + + +#### non-exhaustive-let + +Source: [non_exhaustive_let.rs](crates/ide-diagnostics/src/handlers/non_exhaustive_let.rs#3) + + +This diagnostic is triggered if a `let` statement without an `else` branch has a non-exhaustive +pattern. + + + + +#### private-assoc-item + +Source: [private_assoc_item.rs](crates/ide-diagnostics/src/handlers/private_assoc_item.rs#3) + + +This diagnostic is triggered if the referenced associated item is not visible from the current +module. + + + + +#### private-field + +Source: [private_field.rs](crates/ide-diagnostics/src/handlers/private_field.rs#3) + + +This diagnostic is triggered if the accessed field is not visible from the current module. + + + + +#### proc-macro-disabled + +Source: [macro_error.rs](crates/ide-diagnostics/src/handlers/macro_error.rs#11) + + +This diagnostic is shown for proc macros that have been specifically disabled via `rust-analyzer.procMacro.ignored`. + + + + +#### remove-trailing-return + +Source: [remove_trailing_return.rs](crates/ide-diagnostics/src/handlers/remove_trailing_return.rs#8) + + +This diagnostic is triggered when there is a redundant `return` at the end of a function +or closure. + + + + +#### remove-unnecessary-else + +Source: [remove_unnecessary_else.rs](crates/ide-diagnostics/src/handlers/remove_unnecessary_else.rs#17) + + +This diagnostic is triggered when there is an `else` block for an `if` expression whose +then branch diverges (e.g. ends with a `return`, `continue`, `break` e.t.c). + + + + +#### replace-filter-map-next-with-find-map + +Source: [replace_filter_map_next_with_find_map.rs](crates/ide-diagnostics/src/handlers/replace_filter_map_next_with_find_map.rs#11) + + +This diagnostic is triggered when `.filter_map(..).next()` is used, rather than the more concise `.find_map(..)`. + + + + +#### trait-impl-incorrect-safety + +Source: [trait_impl_incorrect_safety.rs](crates/ide-diagnostics/src/handlers/trait_impl_incorrect_safety.rs#6) + + +Diagnoses incorrect safety annotations of trait impls. + + + + +#### trait-impl-missing-assoc_item + +Source: [trait_impl_missing_assoc_item.rs](crates/ide-diagnostics/src/handlers/trait_impl_missing_assoc_item.rs#7) + + +Diagnoses missing trait items in a trait impl. + + + + +#### trait-impl-orphan + +Source: [trait_impl_orphan.rs](crates/ide-diagnostics/src/handlers/trait_impl_orphan.rs#5) + + +Only traits defined in the current crate can be implemented for arbitrary types + + + + +#### trait-impl-redundant-assoc_item + +Source: [trait_impl_redundant_assoc_item.rs](crates/ide-diagnostics/src/handlers/trait_impl_redundant_assoc_item.rs#12) + + +Diagnoses redundant trait items in a trait impl. + + + + +#### type-mismatch + +Source: [type_mismatch.rs](crates/ide-diagnostics/src/handlers/type_mismatch.rs#20) + + +This diagnostic is triggered when the type of an expression or pattern does not match +the expected type. + + + + +#### typed-hole + +Source: [typed_hole.rs](crates/ide-diagnostics/src/handlers/typed_hole.rs#18) + + +This diagnostic is triggered when an underscore expression is used in an invalid position. + + + + +#### undeclared-label + +Source: [undeclared_label.rs](crates/ide-diagnostics/src/handlers/undeclared_label.rs#3) + + + + + + +#### unimplemented-builtin-macro + +Source: [unimplemented_builtin_macro.rs](crates/ide-diagnostics/src/handlers/unimplemented_builtin_macro.rs#3) + + +This diagnostic is shown for builtin macros which are not yet implemented by rust-analyzer + + + + +#### unlinked-file + +Source: [unlinked_file.rs](crates/ide-diagnostics/src/handlers/unlinked_file.rs#20) + + +This diagnostic is shown for files that are not included in any crate, or files that are part of +crates rust-analyzer failed to discover. The file will not have IDE features available. + + + + +#### unnecessary-braces + +Source: [useless_braces.rs](crates/ide-diagnostics/src/handlers/useless_braces.rs#9) + + +Diagnostic for unnecessary braces in `use` items. + + + + +#### unreachable-label + +Source: [unreachable_label.rs](crates/ide-diagnostics/src/handlers/unreachable_label.rs#3) + + + + + + +#### unresolved-assoc-item + +Source: [unresolved_assoc_item.rs](crates/ide-diagnostics/src/handlers/unresolved_assoc_item.rs#3) + + +This diagnostic is triggered if the referenced associated item does not exist. + + + + +#### unresolved-extern-crate + +Source: [unresolved_extern_crate.rs](crates/ide-diagnostics/src/handlers/unresolved_extern_crate.rs#3) + + +This diagnostic is triggered if rust-analyzer is unable to discover referred extern crate. + + + + +#### unresolved-field + +Source: [unresolved_field.rs](crates/ide-diagnostics/src/handlers/unresolved_field.rs#23) + + +This diagnostic is triggered if a field does not exist on a given type. + + + + +#### unresolved-ident + +Source: [unresolved_ident.rs](crates/ide-diagnostics/src/handlers/unresolved_ident.rs#3) + + +This diagnostic is triggered if an expr-position ident is invalid. + + + + +#### unresolved-import + +Source: [unresolved_import.rs](crates/ide-diagnostics/src/handlers/unresolved_import.rs#3) + + +This diagnostic is triggered if rust-analyzer is unable to resolve a path in +a `use` declaration. + + + + +#### unresolved-macro-call + +Source: [unresolved_macro_call.rs](crates/ide-diagnostics/src/handlers/unresolved_macro_call.rs#3) + + +This diagnostic is triggered if rust-analyzer is unable to resolve the path +to a macro in a macro invocation. + + + + +#### unresolved-method + +Source: [unresolved_method.rs](crates/ide-diagnostics/src/handlers/unresolved_method.rs#15) + + +This diagnostic is triggered if a method does not exist on a given type. + + + + +#### unresolved-module + +Source: [unresolved_module.rs](crates/ide-diagnostics/src/handlers/unresolved_module.rs#8) + + +This diagnostic is triggered if rust-analyzer is unable to discover referred module. + + + + +#### unused-mut + +Source: [mutability_errors.rs](crates/ide-diagnostics/src/handlers/mutability_errors.rs#62) + + +This diagnostic is triggered when a mutable variable isn't actually mutated. + + + + +#### unused-variables + +Source: [unused_variables.rs](crates/ide-diagnostics/src/handlers/unused_variables.rs#13) + + +This diagnostic is triggered when a local variable is not used. + + diff --git a/src/tools/rust-analyzer/docs/book/src/features_generated.md b/src/tools/rust-analyzer/docs/book/src/features_generated.md new file mode 100644 index 0000000000000..2c5829b1f54c0 --- /dev/null +++ b/src/tools/rust-analyzer/docs/book/src/features_generated.md @@ -0,0 +1,940 @@ +//! Generated by `cargo xtask codegen feature-docs`, do not edit by hand. + +### Annotations +**Source:** [annotations.rs](crates/ide/src/annotations.rs#19) + +Provides user with annotations above items for looking up references or impl blocks +and running/debugging binaries. + +![Annotations](https://user-images.githubusercontent.com/48062697/113020672-b7c34f00-917a-11eb-8f6e-858735660a0e.png) + + +### Auto Import +**Source:** [auto_import.rs](crates/ide-assists/src/handlers/auto_import.rs#15) + +Using the `auto-import` assist it is possible to insert missing imports for unresolved items. +When inserting an import it will do so in a structured manner by keeping imports grouped, +separated by a newline in the following order: + +- `std` and `core` +- External Crates +- Current Crate, paths prefixed by `crate` +- Current Module, paths prefixed by `self` +- Super Module, paths prefixed by `super` + +Example: +```rust +use std::fs::File; + +use itertools::Itertools; +use syntax::ast; + +use crate::utils::insert_use; + +use self::auto_import; + +use super::AssistContext; +``` + +#### Import Granularity + +It is possible to configure how use-trees are merged with the `imports.granularity.group` setting. +It has the following configurations: + +- `crate`: Merge imports from the same crate into a single use statement. This kind of + nesting is only supported in Rust versions later than 1.24. +- `module`: Merge imports from the same module into a single use statement. +- `item`: Don't merge imports at all, creating one import per item. +- `preserve`: Do not change the granularity of any imports. For auto-import this has the same + effect as `item`. +- `one`: Merge all imports into a single use statement as long as they have the same visibility + and attributes. + +In `VS Code` the configuration for this is `rust-analyzer.imports.granularity.group`. + +#### Import Prefix + +The style of imports in the same crate is configurable through the `imports.prefix` setting. +It has the following configurations: + +- `crate`: This setting will force paths to be always absolute, starting with the `crate` + prefix, unless the item is defined outside of the current crate. +- `self`: This setting will force paths that are relative to the current module to always + start with `self`. This will result in paths that always start with either `crate`, `self`, + `super` or an extern crate identifier. +- `plain`: This setting does not impose any restrictions in imports. + +In `VS Code` the configuration for this is `rust-analyzer.imports.prefix`. + +![Auto Import](https://user-images.githubusercontent.com/48062697/113020673-b85be580-917a-11eb-9022-59585f35d4f8.gif) + + +### Completion With Autoimport +**Source:** [flyimport.rs](crates/ide-completion/src/completions/flyimport.rs#20) + +When completing names in the current scope, proposes additional imports from other modules or crates, +if they can be qualified in the scope, and their name contains all symbols from the completion input. + +To be considered applicable, the name must contain all input symbols in the given order, not necessarily adjacent. +If any input symbol is not lowercased, the name must contain all symbols in exact case; otherwise the containing is checked case-insensitively. + +``` +fn main() { + pda$0 +} +# pub mod std { pub mod marker { pub struct PhantomData { } } } +``` +-> +``` +use std::marker::PhantomData; + +fn main() { + PhantomData +} +# pub mod std { pub mod marker { pub struct PhantomData { } } } +``` + +Also completes associated items, that require trait imports. +If any unresolved and/or partially-qualified path precedes the input, it will be taken into account. +Currently, only the imports with their import path ending with the whole qualifier will be proposed +(no fuzzy matching for qualifier). + +``` +mod foo { + pub mod bar { + pub struct Item; + + impl Item { + pub const TEST_ASSOC: usize = 3; + } + } +} + +fn main() { + bar::Item::TEST_A$0 +} +``` +-> +``` +use foo::bar; + +mod foo { + pub mod bar { + pub struct Item; + + impl Item { + pub const TEST_ASSOC: usize = 3; + } + } +} + +fn main() { + bar::Item::TEST_ASSOC +} +``` + +NOTE: currently, if an assoc item comes from a trait that's not currently imported, and it also has an unresolved and/or partially-qualified path, +no imports will be proposed. + +#### Fuzzy search details + +To avoid an excessive amount of the results returned, completion input is checked for inclusion in the names only +(i.e. in `HashMap` in the `std::collections::HashMap` path). +For the same reasons, avoids searching for any path imports for inputs with their length less than 2 symbols +(but shows all associated items for any input length). + +#### Import configuration + +It is possible to configure how use-trees are merged with the `imports.granularity.group` setting. +Mimics the corresponding behavior of the `Auto Import` feature. + +#### LSP and performance implications + +The feature is enabled only if the LSP client supports LSP protocol version 3.16+ and reports the `additionalTextEdits` +(case-sensitive) resolve client capability in its client capabilities. +This way the server is able to defer the costly computations, doing them for a selected completion item only. +For clients with no such support, all edits have to be calculated on the completion request, including the fuzzy search completion ones, +which might be slow ergo the feature is automatically disabled. + +#### Feature toggle + +The feature can be forcefully turned off in the settings with the `rust-analyzer.completion.autoimport.enable` flag. +Note that having this flag set to `true` does not guarantee that the feature is enabled: your client needs to have the corresponding +capability enabled. + + +### Debug ItemTree +**Source:** [view_item_tree.rs](crates/ide/src/view_item_tree.rs#5) + +Displays the ItemTree of the currently open file, for debugging. + +| Editor | Action Name | +|---------|-------------| +| VS Code | **rust-analyzer: Debug ItemTree** | + + +### Expand Macro Recursively +**Source:** [expand_macro.rs](crates/ide/src/expand_macro.rs#18) + +Shows the full macro expansion of the macro at the current caret position. + +| Editor | Action Name | +|---------|-------------| +| VS Code | **rust-analyzer: Expand macro recursively at caret** | + +![Expand Macro Recursively](https://user-images.githubusercontent.com/48062697/113020648-b3973180-917a-11eb-84a9-ecb921293dc5.gif) + + +### Expand and Shrink Selection +**Source:** [extend_selection.rs](crates/ide/src/extend_selection.rs#15) + +Extends or shrinks the current selection to the encompassing syntactic construct +(expression, statement, item, module, etc). It works with multiple cursors. + +| Editor | Shortcut | +|---------|----------| +| VS Code | Alt+Shift+→, Alt+Shift+← | + +![Expand and Shrink Selection](https://user-images.githubusercontent.com/48062697/113020651-b42fc800-917a-11eb-8a4f-cf1a07859fac.gif) + + +### File Structure +**Source:** [file_structure.rs](crates/ide/src/file_structure.rs#26) + +Provides a tree of the symbols defined in the file. Can be used to + +* fuzzy search symbol in a file (super useful) +* draw breadcrumbs to describe the context around the cursor +* draw outline of the file + +| Editor | Shortcut | +|---------|----------| +| VS Code | Ctrl+Shift+O | + +![File Structure](https://user-images.githubusercontent.com/48062697/113020654-b42fc800-917a-11eb-8388-e7dc4d92b02e.gif) + + +### Find All References +**Source:** [references.rs](crates/ide/src/references.rs#42) + +Shows all references of the item at the cursor location + +| Editor | Shortcut | +|---------|----------| +| VS Code | Shift+Alt+F12 | + +![Find All References](https://user-images.githubusercontent.com/48062697/113020670-b7c34f00-917a-11eb-8003-370ac5f2b3cb.gif) + + +### Folding +**Source:** [folding_ranges.rs](crates/ide/src/folding_ranges.rs#36) + +Defines folding regions for curly braced blocks, runs of consecutive use, mod, const or static +items, and `region` / `endregion` comment markers. + + +### Format String Completion +**Source:** [format_like.rs](crates/ide-completion/src/completions/postfix/format_like.rs#0) + +`"Result {result} is {2 + 2}"` is expanded to the `"Result {} is {}", result, 2 + 2`. + +The following postfix snippets are available: + +* `format` -> `format!(...)` +* `panic` -> `panic!(...)` +* `println` -> `println!(...)` +* `log`: +** `logd` -> `log::debug!(...)` +** `logt` -> `log::trace!(...)` +** `logi` -> `log::info!(...)` +** `logw` -> `log::warn!(...)` +** `loge` -> `log::error!(...)` + +![Format String Completion](https://user-images.githubusercontent.com/48062697/113020656-b560f500-917a-11eb-87de-02991f61beb8.gif) + + +### Go to Declaration +**Source:** [goto_declaration.rs](crates/ide/src/goto_declaration.rs#13) + +Navigates to the declaration of an identifier. + +This is the same as `Go to Definition` with the following exceptions: +- outline modules will navigate to the `mod name;` item declaration +- trait assoc items will navigate to the assoc item of the trait declaration as opposed to the trait impl +- fields in patterns will navigate to the field declaration of the struct, union or variant + + +### Go to Definition +**Source:** [goto_definition.rs](crates/ide/src/goto_definition.rs#28) + +Navigates to the definition of an identifier. + +For outline modules, this will navigate to the source file of the module. + +| Editor | Shortcut | +|---------|----------| +| VS Code | F12 | + +![Go to Definition](https://user-images.githubusercontent.com/48062697/113065563-025fbe00-91b1-11eb-83e4-a5a703610b23.gif) + + +### Go to Implementation +**Source:** [goto_implementation.rs](crates/ide/src/goto_implementation.rs#11) + +Navigates to the impl items of types. + +| Editor | Shortcut | +|---------|----------| +| VS Code | Ctrl+F12 + +![Go to Implementation](https://user-images.githubusercontent.com/48062697/113065566-02f85480-91b1-11eb-9288-aaad8abd8841.gif) + + +### Go to Type Definition +**Source:** [goto_type_definition.rs](crates/ide/src/goto_type_definition.rs#7) + +Navigates to the type of an identifier. + +| Editor | Action Name | +|---------|-------------| +| VS Code | **Go to Type Definition** | + +![Go to Type Definition](https://user-images.githubusercontent.com/48062697/113020657-b560f500-917a-11eb-9007-0f809733a338.gif) + + +### Highlight Related +**Source:** [highlight_related.rs](crates/ide/src/highlight_related.rs#42) + +Highlights constructs related to the thing under the cursor: + +1. if on an identifier, highlights all references to that identifier in the current file + * additionally, if the identifier is a trait in a where clause, type parameter trait bound or use item, highlights all references to that trait's assoc items in the corresponding scope +1. if on an `async` or `await` token, highlights all yield points for that async context +1. if on a `return` or `fn` keyword, `?` character or `->` return type arrow, highlights all exit points for that context +1. if on a `break`, `loop`, `while` or `for` token, highlights all break points for that loop or block context +1. if on a `move` or `|` token that belongs to a closure, highlights all captures of the closure. + +Note: `?`, `|` and `->` do not currently trigger this behavior in the VSCode editor. + + +### Hover +**Source:** [hover.rs](crates/ide/src/hover.rs#116) + +Shows additional information, like the type of an expression or the documentation for a definition when "focusing" code. +Focusing is usually hovering with a mouse, but can also be triggered with a shortcut. + +![Hover](https://user-images.githubusercontent.com/48062697/113020658-b5f98b80-917a-11eb-9f88-3dbc27320c95.gif) + + +### Inlay Hints +**Source:** [inlay_hints.rs](crates/ide/src/inlay_hints.rs#41) + +rust-analyzer shows additional information inline with the source code. +Editors usually render this using read-only virtual text snippets interspersed with code. + +rust-analyzer by default shows hints for + +* types of local variables +* names of function arguments +* names of const generic parameters +* types of chained expressions + +Optionally, one can enable additional hints for + +* return types of closure expressions +* elided lifetimes +* compiler inserted reborrows +* names of generic type and lifetime parameters + +Note: inlay hints for function argument names are heuristically omitted to reduce noise and will not appear if +any of the +[following criteria](https://github.com/rust-lang/rust-analyzer/blob/6b8b8ff4c56118ddee6c531cde06add1aad4a6af/crates/ide/src/inlay_hints/param_name.rs#L92-L99) +are met: + +* the parameter name is a suffix of the function's name +* the argument is a qualified constructing or call expression where the qualifier is an ADT +* exact argument<->parameter match(ignoring leading underscore) or parameter is a prefix/suffix + of argument with _ splitting it off +* the parameter name starts with `ra_fixture` +* the parameter name is a +[well known name](https://github.com/rust-lang/rust-analyzer/blob/6b8b8ff4c56118ddee6c531cde06add1aad4a6af/crates/ide/src/inlay_hints/param_name.rs#L200) +in a unary function +* the parameter name is a +[single character](https://github.com/rust-lang/rust-analyzer/blob/6b8b8ff4c56118ddee6c531cde06add1aad4a6af/crates/ide/src/inlay_hints/param_name.rs#L201) +in a unary function + +![Inlay hints](https://user-images.githubusercontent.com/48062697/113020660-b5f98b80-917a-11eb-8d70-3be3fd558cdd.png) + + +### Interpret A Function, Static Or Const. +**Source:** [interpret.rs](crates/ide/src/interpret.rs#8) + +| Editor | Action Name | +|---------|-------------| +| VS Code | **rust-analyzer: Interpret** | + + +### Join Lines +**Source:** [join_lines.rs](crates/ide/src/join_lines.rs#20) + +Join selected lines into one, smartly fixing up whitespace, trailing commas, and braces. + +See [this gif](https://user-images.githubusercontent.com/1711539/124515923-4504e800-dde9-11eb-8d58-d97945a1a785.gif) for the cases handled specially by joined lines. + +| Editor | Action Name | +|---------|-------------| +| VS Code | **rust-analyzer: Join lines** | + +![Join Lines](https://user-images.githubusercontent.com/48062697/113020661-b6922200-917a-11eb-87c4-b75acc028f11.gif) + + +### Magic Completions +**Source:** [lib.rs](crates/ide-completion/src/lib.rs#78) + +In addition to usual reference completion, rust-analyzer provides some ✨magic✨ +completions as well: + +Keywords like `if`, `else` `while`, `loop` are completed with braces, and cursor +is placed at the appropriate position. Even though `if` is easy to type, you +still want to complete it, to get ` { }` for free! `return` is inserted with a +space or `;` depending on the return type of the function. + +When completing a function call, `()` are automatically inserted. If a function +takes arguments, the cursor is positioned inside the parenthesis. + +There are postfix completions, which can be triggered by typing something like +`foo().if`. The word after `.` determines postfix completion. Possible variants are: + +- `expr.if` -> `if expr {}` or `if let ... {}` for `Option` or `Result` +- `expr.match` -> `match expr {}` +- `expr.while` -> `while expr {}` or `while let ... {}` for `Option` or `Result` +- `expr.ref` -> `&expr` +- `expr.refm` -> `&mut expr` +- `expr.let` -> `let $0 = expr;` +- `expr.lete` -> `let $1 = expr else { $0 };` +- `expr.letm` -> `let mut $0 = expr;` +- `expr.not` -> `!expr` +- `expr.dbg` -> `dbg!(expr)` +- `expr.dbgr` -> `dbg!(&expr)` +- `expr.call` -> `(expr)` + +There also snippet completions: + +#### Expressions + +- `pd` -> `eprintln!(" = {:?}", );` +- `ppd` -> `eprintln!(" = {:#?}", );` + +#### Items + +- `tfn` -> `#[test] fn feature(){}` +- `tmod` -> +```rust +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn test_name() {} +} +``` + +And the auto import completions, enabled with the `rust-analyzer.completion.autoimport.enable` setting and the corresponding LSP client capabilities. +Those are the additional completion options with automatic `use` import and options from all project importable items, +fuzzy matched against the completion input. + +![Magic Completions](https://user-images.githubusercontent.com/48062697/113020667-b72ab880-917a-11eb-8778-716cf26a0eb3.gif) + + +### Matching Brace +**Source:** [matching_brace.rs](crates/ide/src/matching_brace.rs#6) + +If the cursor is on any brace (`<>(){}[]||`) which is a part of a brace-pair, +moves cursor to the matching brace. It uses the actual parser to determine +braces, so it won't confuse generics with comparisons. + +| Editor | Action Name | +|---------|-------------| +| VS Code | **rust-analyzer: Find matching brace** | + +![Matching Brace](https://user-images.githubusercontent.com/48062697/113065573-04298180-91b1-11eb-8dec-d4e2a202f304.gif) + + +### Memory Usage +**Source:** [apply_change.rs](crates/ide-db/src/apply_change.rs#43) + +Clears rust-analyzer's internal database and prints memory usage statistics. + +| Editor | Action Name | +|---------|-------------| +| VS Code | **rust-analyzer: Memory Usage (Clears Database)** + + +### Move Item +**Source:** [move_item.rs](crates/ide/src/move_item.rs#16) + +Move item under cursor or selection up and down. + +| Editor | Action Name | +|---------|-------------| +| VS Code | **rust-analyzer: Move item up** +| VS Code | **rust-analyzer: Move item down** + +![Move Item](https://user-images.githubusercontent.com/48062697/113065576-04298180-91b1-11eb-91ce-4505e99ed598.gif) + + +### On Enter +**Source:** [on_enter.rs](crates/ide/src/typing/on_enter.rs#17) + +rust-analyzer can override Enter key to make it smarter: + +- Enter inside triple-slash comments automatically inserts `///` +- Enter in the middle or after a trailing space in `//` inserts `//` +- Enter inside `//!` doc comments automatically inserts `//!` +- Enter after `{` indents contents and closing `}` of single-line block + +This action needs to be assigned to shortcut explicitly. + +Note that, depending on the other installed extensions, this feature can visibly slow down typing. +Similarly, if rust-analyzer crashes or stops responding, `Enter` might not work. +In that case, you can still press `Shift-Enter` to insert a newline. + +#### VS Code + +Add the following to `keybindings.json`: +```json +{ + "key": "Enter", + "command": "rust-analyzer.onEnter", + "when": "editorTextFocus && !suggestWidgetVisible && editorLangId == rust" +} +```` + +When using the Vim plugin: +```json +{ + "key": "Enter", + "command": "rust-analyzer.onEnter", + "when": "editorTextFocus && !suggestWidgetVisible && editorLangId == rust && vim.mode == 'Insert'" +} +```` + +![On Enter](https://user-images.githubusercontent.com/48062697/113065578-04c21800-91b1-11eb-82b8-22b8c481e645.gif) + + +### On Typing Assists +**Source:** [typing.rs](crates/ide/src/typing.rs#42) + +Some features trigger on typing certain characters: + +- typing `let =` tries to smartly add `;` if `=` is followed by an existing expression +- typing `=` between two expressions adds `;` when in statement position +- typing `=` to turn an assignment into an equality comparison removes `;` when in expression position +- typing `.` in a chain method call auto-indents +- typing `{` or `(` in front of an expression inserts a closing `}` or `)` after the expression +- typing `{` in a use item adds a closing `}` in the right place +- typing `>` to complete a return type `->` will insert a whitespace after it + +#### VS Code + +Add the following to `settings.json`: +```json +"editor.formatOnType": true, +``` + +![On Typing Assists](https://user-images.githubusercontent.com/48062697/113166163-69758500-923a-11eb-81ee-eb33ec380399.gif) +![On Typing Assists](https://user-images.githubusercontent.com/48062697/113171066-105c2000-923f-11eb-87ab-f4a263346567.gif) + + +### Open Docs +**Source:** [doc_links.rs](crates/ide/src/doc_links.rs#118) + +Retrieve a links to documentation for the given symbol. + +The simplest way to use this feature is via the context menu. Right-click on +the selected item. The context menu opens. Select **Open Docs**. + +| Editor | Action Name | +|---------|-------------| +| VS Code | **rust-analyzer: Open Docs** | + + +### Parent Module +**Source:** [parent_module.rs](crates/ide/src/parent_module.rs#14) + +Navigates to the parent module of the current module. + +| Editor | Action Name | +|---------|-------------| +| VS Code | **rust-analyzer: Locate parent module** | + +![Parent Module](https://user-images.githubusercontent.com/48062697/113065580-04c21800-91b1-11eb-9a32-00086161c0bd.gif) + + +### Related Tests +**Source:** [runnables.rs](crates/ide/src/runnables.rs#202) + +Provides a sneak peek of all tests where the current item is used. + +The simplest way to use this feature is via the context menu. Right-click on +the selected item. The context menu opens. Select **Peek Related Tests**. + +| Editor | Action Name | +|---------|-------------| +| VS Code | **rust-analyzer: Peek Related Tests** | + + +### Rename +**Source:** [rename.rs](crates/ide/src/rename.rs#70) + +Renames the item below the cursor and all of its references + +| Editor | Shortcut | +|---------|----------| +| VS Code | F2 | + +![Rename](https://user-images.githubusercontent.com/48062697/113065582-055aae80-91b1-11eb-8ade-2b58e6d81883.gif) + + +### Run +**Source:** [runnables.rs](crates/ide/src/runnables.rs#116) + +Shows a popup suggesting to run a test/benchmark/binary **at the current cursor +location**. Super useful for repeatedly running just a single test. Do bind this +to a shortcut! + +| Editor | Action Name | +|---------|-------------| +| VS Code | **rust-analyzer: Run** | + +![Run](https://user-images.githubusercontent.com/48062697/113065583-055aae80-91b1-11eb-958f-d67efcaf6a2f.gif) + + +### Semantic Syntax Highlighting +**Source:** [syntax_highlighting.rs](crates/ide/src/syntax_highlighting.rs#68) + +rust-analyzer highlights the code semantically. +For example, `Bar` in `foo::Bar` might be colored differently depending on whether `Bar` is an enum or a trait. +rust-analyzer does not specify colors directly, instead it assigns a tag (like `struct`) and a set of modifiers (like `declaration`) to each token. +It's up to the client to map those to specific colors. + +The general rule is that a reference to an entity gets colored the same way as the entity itself. +We also give special modifier for `mut` and `&mut` local variables. + + +#### Token Tags + +Rust-analyzer currently emits the following token tags: + +- For items: + +| | | +|-----------|--------------------------------| +| attribute | Emitted for attribute macros. | +|enum| Emitted for enums. | +|function| Emitted for free-standing functions. | +|derive| Emitted for derive macros. | +|macro| Emitted for function-like macros. | +|method| Emitted for associated functions, also knowns as methods. | +|namespace| Emitted for modules. | +|struct| Emitted for structs.| +|trait| Emitted for traits.| +|typeAlias| Emitted for type aliases and `Self` in `impl`s.| +|union| Emitted for unions.| + +- For literals: + +| | | +|-----------|--------------------------------| +| boolean| Emitted for the boolean literals `true` and `false`.| +| character| Emitted for character literals.| +| number| Emitted for numeric literals.| +| string| Emitted for string literals.| +| escapeSequence| Emitted for escaped sequences inside strings like `\n`.| +| formatSpecifier| Emitted for format specifiers `{:?}` in `format!`-like macros.| + +- For operators: + +| | | +|-----------|--------------------------------| +|operator| Emitted for general operators.| +|arithmetic| Emitted for the arithmetic operators `+`, `-`, `*`, `/`, `+=`, `-=`, `*=`, `/=`.| +|bitwise| Emitted for the bitwise operators `|`, `&`, `!`, `^`, `|=`, `&=`, `^=`.| +|comparison| Emitted for the comparison oerators `>`, `<`, `==`, `>=`, `<=`, `!=`.| +|logical| Emitted for the logical operatos `||`, `&&`, `!`.| + +- For punctuation: + +| | | +|-----------|--------------------------------| +|punctuation| Emitted for general punctuation.| +|attributeBracket| Emitted for attribute invocation brackets, that is the `#[` and `]` tokens.| +|angle| Emitted for `<>` angle brackets.| +|brace| Emitted for `{}` braces.| +|bracket| Emitted for `[]` brackets.| +|parenthesis| Emitted for `()` parentheses.| +|colon| Emitted for the `:` token.| +|comma| Emitted for the `,` token.| +|dot| Emitted for the `.` token.| +|semi| Emitted for the `;` token.| +|macroBang| Emitted for the `!` token in macro calls.| + +- + +| | | +|-----------|--------------------------------| +|builtinAttribute| Emitted for names to builtin attributes in attribute path, the `repr` in `#[repr(u8)]` for example.| +|builtinType| Emitted for builtin types like `u32`, `str` and `f32`.| +|comment| Emitted for comments.| +|constParameter| Emitted for const parameters.| +|deriveHelper| Emitted for derive helper attributes.| +|enumMember| Emitted for enum variants.| +|generic| Emitted for generic tokens that have no mapping.| +|keyword| Emitted for keywords.| +|label| Emitted for labels.| +|lifetime| Emitted for lifetimes.| +|parameter| Emitted for non-self function parameters.| +|property| Emitted for struct and union fields.| +|selfKeyword| Emitted for the self function parameter and self path-specifier.| +|selfTypeKeyword| Emitted for the Self type parameter.| +|toolModule| Emitted for tool modules.| +|typeParameter| Emitted for type parameters.| +|unresolvedReference| Emitted for unresolved references, names that rust-analyzer can't find the definition of.| +|variable| Emitted for locals, constants and statics.| + + +#### Token Modifiers + +Token modifiers allow to style some elements in the source code more precisely. + +Rust-analyzer currently emits the following token modifiers: + +| | | +|-----------|--------------------------------| +|async| Emitted for async functions and the `async` and `await` keywords.| +|attribute| Emitted for tokens inside attributes.| +|callable| Emitted for locals whose types implements one of the `Fn*` traits.| +|constant| Emitted for const.| +|consuming| Emitted for locals that are being consumed when use in a function call.| +|controlFlow| Emitted for control-flow related tokens, this includes th `?` operator.| +|crateRoot| Emitted for crate names, like `serde` and `crate.| +|declaration| Emitted for names of definitions, like `foo` in `fn foo(){}`.| +|defaultLibrary| Emitted for items from built-in crates (std, core, allc, test and proc_macro).| +|documentation| Emitted for documentation comment.| +|injected| Emitted for doc-string injected highlighting like rust source blocks in documentation.| +|intraDocLink| Emitted for intra doc links in doc-string.| +|library| Emitted for items that are defined outside of the current crae.| +|macro| Emitted for tokens inside macro call.| +|mutable| Emitted for mutable locals and statics as well as functions taking `&mut self`.| +|public| Emitted for items that are from the current crate and are `pub.| +|reference| Emitted for locals behind a reference and functions taking self` by reference.| +|static| Emitted for "static" functions, also known as functions that d not take a `self` param, as well as statics and consts.| +|trait| Emitted for associated trait item.| +|unsafe| Emitted for unsafe operations, like unsafe function calls, as ell as the `unsafe` token.| + +![Semantic Syntax Highlighting](https://user-images.githubusercontent.com/48062697/113164457-06cfb980-9239-11eb-819b-0f93e646acf8.png) +![Semantic Syntax Highlighting](https://user-images.githubusercontent.com/48062697/113187625-f7f50100-9250-11eb-825e-91c58f236071.png) + + +### Show Dependency Tree +**Source:** [fetch_crates.rs](crates/ide/src/fetch_crates.rs#13) + +Shows a view tree with all the dependencies of this project + +| Editor | Panel Name | +|---------|------------| +| VS Code | **Rust Dependencies** | + +![Show Dependency Tree](https://user-images.githubusercontent.com/5748995/229394139-2625beab-f4c9-484b-84ed-ad5dee0b1e1a.png) + + +### Show Syntax Tree +**Source:** [view_syntax_tree.rs](crates/ide/src/view_syntax_tree.rs#14) + +Shows a tree view with the syntax tree of the current file + +| Editor | Panel Name | +|---------|-------------| +| VS Code | **Rust Syntax Tree** | + + +### Status +**Source:** [status.rs](crates/ide/src/status.rs#28) + +Shows internal statistic about memory usage of rust-analyzer. + +| Editor | Action Name | +|---------|-------------| +| VS Code | **rust-analyzer: Status** | + +![Status](https://user-images.githubusercontent.com/48062697/113065584-05f34500-91b1-11eb-98cc-5c196f76be7f.gif) + + +### Structural Search and Replace +**Source:** [lib.rs](crates/ide-ssr/src/lib.rs#6) + +Search and replace with named wildcards that will match any expression, type, path, pattern or item. +The syntax for a structural search replace command is ` ==>> `. +A `$` placeholder in the search pattern will match any AST node and `$` will reference it in the replacement. +Within a macro call, a placeholder will match up until whatever token follows the placeholder. + +All paths in both the search pattern and the replacement template must resolve in the context +in which this command is invoked. Paths in the search pattern will then match the code if they +resolve to the same item, even if they're written differently. For example if we invoke the +command in the module `foo` with a pattern of `Bar`, then code in the parent module that refers +to `foo::Bar` will match. + +Paths in the replacement template will be rendered appropriately for the context in which the +replacement occurs. For example if our replacement template is `foo::Bar` and we match some +code in the `foo` module, we'll insert just `Bar`. + +Inherent method calls should generally be written in UFCS form. e.g. `foo::Bar::baz($s, $a)` will +match `$s.baz($a)`, provided the method call `baz` resolves to the method `foo::Bar::baz`. When a +placeholder is the receiver of a method call in the search pattern (e.g. `$s.foo()`), but not in +the replacement template (e.g. `bar($s)`), then *, & and &mut will be added as needed to mirror +whatever autoderef and autoref was happening implicitly in the matched code. + +The scope of the search / replace will be restricted to the current selection if any, otherwise +it will apply to the whole workspace. + +Placeholders may be given constraints by writing them as `${::...}`. + +Supported constraints: + +| Constraint | Restricts placeholder | +|---------------|------------------------| +| kind(literal) | Is a literal (e.g. `42` or `"forty two"`) | +| not(a) | Negates the constraint `a` | + +Available via the command `rust-analyzer.ssr`. + +```rust +// Using structural search replace command [foo($a, $b) ==>> ($a).foo($b)] + +// BEFORE +String::from(foo(y + 5, z)) + +// AFTER +String::from((y + 5).foo(z)) +``` + +| Editor | Action Name | +|---------|--------------| +| VS Code | **rust-analyzer: Structural Search Replace** | + +Also available as an assist, by writing a comment containing the structural +search and replace rule. You will only see the assist if the comment can +be parsed as a valid structural search and replace rule. + +```rust +// Place the cursor on the line below to see the assist 💡. +// foo($a, $b) ==>> ($a).foo($b) +``` + + +### User Snippet Completions +**Source:** [snippet.rs](crates/ide-completion/src/snippet.rs#5) + +rust-analyzer allows the user to define custom (postfix)-snippets that may depend on items to be accessible for the current scope to be applicable. + +A custom snippet can be defined by adding it to the `rust-analyzer.completion.snippets.custom` object respectively. + +```json +{ + "rust-analyzer.completion.snippets.custom": { + "thread spawn": { + "prefix": ["spawn", "tspawn"], + "body": [ + "thread::spawn(move || {", + "\t$0", + "});", + ], + "description": "Insert a thread::spawn call", + "requires": "std::thread", + "scope": "expr", + } + } +} +``` + +In the example above: + +* `"thread spawn"` is the name of the snippet. + +* `prefix` defines one or more trigger words that will trigger the snippets completion. +Using `postfix` will instead create a postfix snippet. + +* `body` is one or more lines of content joined via newlines for the final output. + +* `description` is an optional description of the snippet, if unset the snippet name will be used. + +* `requires` is an optional list of item paths that have to be resolvable in the current crate where the completion is rendered. + + +### View Crate Graph +**Source:** [view_crate_graph.rs](crates/ide/src/view_crate_graph.rs#8) + +Renders the currently loaded crate graph as an SVG graphic. Requires the `dot` tool, which +is part of graphviz, to be installed. + +Only workspace crates are included, no crates.io dependencies or sysroot crates. + +| Editor | Action Name | +|---------|-------------| +| VS Code | **rust-analyzer: View Crate Graph** | + + +### View Hir +**Source:** [view_hir.rs](crates/ide/src/view_hir.rs#5) + +| Editor | Action Name | +|---------|--------------| +| VS Code | **rust-analyzer: View Hir** + +![View Hir](https://user-images.githubusercontent.com/48062697/113065588-068bdb80-91b1-11eb-9a78-0b4ef1e972fb.gif) + + +### View Memory Layout +**Source:** [view_memory_layout.rs](crates/ide/src/view_memory_layout.rs#74) + +Displays the recursive memory layout of a datatype. + +| Editor | Action Name | +|---------|-------------| +| VS Code | **rust-analyzer: View Memory Layout** | + + +### View Mir +**Source:** [view_mir.rs](crates/ide/src/view_mir.rs#5) + +| Editor | Action Name | +|---------|-------------| +| VS Code | **rust-analyzer: View Mir** + + +### Workspace Symbol +**Source:** [symbol_index.rs](crates/ide-db/src/symbol_index.rs#174) + +Uses fuzzy-search to find types, modules and functions by name across your +project and dependencies. This is **the** most useful feature, which improves code +navigation tremendously. It mostly works on top of the built-in LSP +functionality, however `#` and `*` symbols can be used to narrow down the +search. Specifically, + +- `Foo` searches for `Foo` type in the current workspace +- `foo#` searches for `foo` function in the current workspace +- `Foo*` searches for `Foo` type among dependencies, including `stdlib` +- `foo#*` searches for `foo` function among dependencies + +That is, `#` switches from "types" to all symbols, `*` switches from the current +workspace to dependencies. + +Note that filtering does not currently work in VSCode due to the editor never +sending the special symbols to the language server. Instead, you can configure +the filtering via the `rust-analyzer.workspace.symbol.search.scope` and +`rust-analyzer.workspace.symbol.search.kind` settings. Symbols prefixed +with `__` are hidden from the search results unless configured otherwise. + +| Editor | Shortcut | +|---------|-----------| +| VS Code | Ctrl+T From f26f1dda44552500b9653d4ec81862275cbc0ccd Mon Sep 17 00:00:00 2001 From: Lukas Wirth Date: Wed, 12 Feb 2025 08:30:30 +0100 Subject: [PATCH 36/75] Spawn toolchain querying processes in parallel --- .../crates/project-model/src/sysroot.rs | 23 +- .../crates/project-model/src/tests.rs | 10 +- .../crates/project-model/src/workspace.rs | 294 ++++++++++++------ .../rust-analyzer/src/cli/rustc_tests.rs | 6 +- .../crates/rust-analyzer/src/reload.rs | 1 + .../rust-analyzer/tests/slow-tests/main.rs | 6 +- 6 files changed, 228 insertions(+), 112 deletions(-) diff --git a/src/tools/rust-analyzer/crates/project-model/src/sysroot.rs b/src/tools/rust-analyzer/crates/project-model/src/sysroot.rs index 8f633d24be9a2..4659d5288b1b6 100644 --- a/src/tools/rust-analyzer/crates/project-model/src/sysroot.rs +++ b/src/tools/rust-analyzer/crates/project-model/src/sysroot.rs @@ -34,14 +34,14 @@ pub struct Sysroot { } #[derive(Debug, Clone, Eq, PartialEq)] -pub(crate) enum SysrootWorkspace { +pub enum SysrootWorkspace { Workspace(CargoWorkspace), Stitched(Stitched), Empty, } #[derive(Debug, Clone, Eq, PartialEq)] -pub(crate) struct Stitched { +pub struct Stitched { crates: Arena, } @@ -227,18 +227,21 @@ impl Sysroot { } } - pub fn load_workspace(&mut self, sysroot_source_config: &SysrootSourceWorkspaceConfig) { + pub fn load_workspace( + &self, + sysroot_source_config: &SysrootSourceWorkspaceConfig, + ) -> Option { assert!(matches!(self.workspace, SysrootWorkspace::Empty), "workspace already loaded"); - let Self { root: _, src_root: Some(src_root), workspace, error: _ } = self else { return }; + let Self { root: _, src_root: Some(src_root), workspace: _, error: _ } = self else { + return None; + }; if let SysrootSourceWorkspaceConfig::CargoMetadata(cargo_config) = sysroot_source_config { let library_manifest = ManifestPath::try_from(src_root.join("Cargo.toml")).unwrap(); if fs::metadata(&library_manifest).is_ok() { if let Some(loaded) = Self::load_library_via_cargo(library_manifest, src_root, cargo_config) { - *workspace = loaded; - self.load_core_check(); - return; + return Some(loaded); } } } @@ -286,11 +289,11 @@ impl Sysroot { } } } - *workspace = SysrootWorkspace::Stitched(stitched); - self.load_core_check(); + Some(SysrootWorkspace::Stitched(stitched)) } - fn load_core_check(&mut self) { + pub fn set_workspace(&mut self, workspace: SysrootWorkspace) { + self.workspace = workspace; if self.error.is_none() { if let Some(src_root) = &self.src_root { let has_core = match &self.workspace { diff --git a/src/tools/rust-analyzer/crates/project-model/src/tests.rs b/src/tools/rust-analyzer/crates/project-model/src/tests.rs index 2856086543666..6d9e68f0043dc 100644 --- a/src/tools/rust-analyzer/crates/project-model/src/tests.rs +++ b/src/tools/rust-analyzer/crates/project-model/src/tests.rs @@ -125,7 +125,10 @@ fn get_fake_sysroot() -> Sysroot { let sysroot_dir = AbsPathBuf::assert(sysroot_path); let sysroot_src_dir = sysroot_dir.clone(); let mut sysroot = Sysroot::new(Some(sysroot_dir), Some(sysroot_src_dir)); - sysroot.load_workspace(&SysrootSourceWorkspaceConfig::default_cargo()); + let loaded_sysroot = sysroot.load_workspace(&SysrootSourceWorkspaceConfig::default_cargo()); + if let Some(loaded_sysroot) = loaded_sysroot { + sysroot.set_workspace(loaded_sysroot); + } sysroot } @@ -271,7 +274,10 @@ fn smoke_test_real_sysroot_cargo() { AbsPath::assert(Utf8Path::new(env!("CARGO_MANIFEST_DIR"))), &Default::default(), ); - sysroot.load_workspace(&SysrootSourceWorkspaceConfig::default_cargo()); + let loaded_sysroot = sysroot.load_workspace(&SysrootSourceWorkspaceConfig::default_cargo()); + if let Some(loaded_sysroot) = loaded_sysroot { + sysroot.set_workspace(loaded_sysroot); + } assert!(matches!(sysroot.workspace(), SysrootWorkspace::Workspace(_))); let project_workspace = ProjectWorkspace { kind: ProjectWorkspaceKind::Cargo { diff --git a/src/tools/rust-analyzer/crates/project-model/src/workspace.rs b/src/tools/rust-analyzer/crates/project-model/src/workspace.rs index dcd62753cb2f9..e21c373b75ffc 100644 --- a/src/tools/rust-analyzer/crates/project-model/src/workspace.rs +++ b/src/tools/rust-analyzer/crates/project-model/src/workspace.rs @@ -2,7 +2,7 @@ //! metadata` or `rust-project.json`) into representation stored in the salsa //! database -- `CrateGraph`. -use std::{collections::VecDeque, fmt, fs, iter, ops::Deref, sync}; +use std::{collections::VecDeque, fmt, fs, iter, ops::Deref, sync, thread}; use anyhow::Context; use base_db::{ @@ -186,7 +186,7 @@ impl ProjectWorkspace { let project_location = project_json.parent().to_path_buf(); let project_json: ProjectJson = ProjectJson::new(Some(project_json.clone()), &project_location, data); - ProjectWorkspace::load_inline(project_json, config) + ProjectWorkspace::load_inline(project_json, config, progress) } ProjectManifest::CargoScript(rust_file) => { ProjectWorkspace::load_detached_file(rust_file, config)? @@ -204,14 +204,28 @@ impl ProjectWorkspace { config: &CargoConfig, progress: &dyn Fn(String), ) -> Result { - let mut sysroot = match (&config.sysroot, &config.sysroot_src) { + progress("Discovering sysroot".to_owned()); + let CargoConfig { + features, + rustc_source, + extra_args, + extra_env, + set_test, + cfg_overrides, + extra_includes, + sysroot, + sysroot_src, + target, + .. + } = config; + let mut sysroot = match (sysroot, sysroot_src) { (Some(RustLibSource::Discover), None) => { - Sysroot::discover(cargo_toml.parent(), &config.extra_env) + Sysroot::discover(cargo_toml.parent(), extra_env) } (Some(RustLibSource::Discover), Some(sysroot_src)) => { Sysroot::discover_with_src_override( cargo_toml.parent(), - &config.extra_env, + extra_env, sysroot_src.clone(), ) } @@ -224,100 +238,147 @@ impl ProjectWorkspace { (None, _) => Sysroot::empty(), }; - let rustc_dir = match &config.rustc_source { - Some(RustLibSource::Path(path)) => ManifestPath::try_from(path.clone()) - .map_err(|p| Some(format!("rustc source path is not absolute: {p}"))), - Some(RustLibSource::Discover) => sysroot - .discover_rustc_src() - .ok_or_else(|| Some("Failed to discover rustc source for sysroot.".to_owned())), - None => Err(None), - }; - tracing::info!(workspace = %cargo_toml, src_root = ?sysroot.src_root(), root = ?sysroot.root(), "Using sysroot"); + progress("Querying project metadata".to_owned()); let toolchain_config = QueryConfig::Cargo(&sysroot, cargo_toml); let targets = - target_tuple::get(toolchain_config, config.target.as_deref(), &config.extra_env) - .unwrap_or_default(); - let toolchain = version::get(toolchain_config, &config.extra_env) - .inspect_err(|e| { - tracing::error!(%e, - "failed fetching toolchain version for {cargo_toml:?} workspace" - ) - }) - .ok() - .flatten(); - let rustc_cfg = - rustc_cfg::get(toolchain_config, targets.first().map(Deref::deref), &config.extra_env); - let cfg_overrides = config.cfg_overrides.clone(); - let data_layout = target_data_layout::get( - toolchain_config, - targets.first().map(Deref::deref), - &config.extra_env, - ); - if let Err(e) = &data_layout { - tracing::error!(%e, "failed fetching data layout for {cargo_toml:?} workspace"); - } - sysroot.load_workspace(&SysrootSourceWorkspaceConfig::CargoMetadata( - sysroot_metadata_config(&config.extra_env, &targets), - )); + target_tuple::get(toolchain_config, target.as_deref(), extra_env).unwrap_or_default(); + + // We spawn a bunch of processes to query various information about the workspace's + // toolchain and sysroot + // We can speed up loading a bit by spawning all of these processes in parallel (especially + // on systems were process spawning is delayed) + let join = thread::scope(|s| { + let workspace_dir = cargo_toml.parent(); + let toolchain = s.spawn(|| { + version::get(toolchain_config, extra_env) + .inspect_err(|e| { + tracing::error!(%e, + "failed fetching toolchain version for {cargo_toml:?} workspace" + ) + }) + .ok() + .flatten() + }); - let rustc = rustc_dir.and_then(|rustc_dir| { - info!(workspace = %cargo_toml, rustc_dir = %rustc_dir, "Using rustc source"); - match CargoWorkspace::fetch_metadata( - &rustc_dir, - cargo_toml.parent(), - &CargoMetadataConfig { - features: crate::CargoFeatures::default(), - targets: targets.clone(), - extra_args: config.extra_args.clone(), - extra_env: config.extra_env.clone(), - }, - &sysroot, - false, - progress, - ) { - Ok((meta, _error)) => { - let workspace = CargoWorkspace::new(meta, cargo_toml.clone(), Env::default()); - let build_scripts = WorkspaceBuildScripts::rustc_crates( - &workspace, - cargo_toml.parent(), - &config.extra_env, + let rustc_cfg = s.spawn(|| { + rustc_cfg::get(toolchain_config, targets.first().map(Deref::deref), extra_env) + }); + let data_layout = s.spawn(|| { + target_data_layout::get( + toolchain_config, + targets.first().map(Deref::deref), + extra_env, + ).inspect_err(|e| { + tracing::error!(%e, "failed fetching data layout for {cargo_toml:?} workspace") + }) + }); + + let rustc_dir = s.spawn(|| { + let rustc_dir = match rustc_source { + Some(RustLibSource::Path(path)) => ManifestPath::try_from(path.clone()) + .map_err(|p| Some(format!("rustc source path is not absolute: {p}"))), + Some(RustLibSource::Discover) => { + sysroot.discover_rustc_src().ok_or_else(|| { + Some("Failed to discover rustc source for sysroot.".to_owned()) + }) + } + None => Err(None), + }; + rustc_dir.and_then(|rustc_dir| { + info!(workspace = %cargo_toml, rustc_dir = %rustc_dir, "Using rustc source"); + match CargoWorkspace::fetch_metadata( + &rustc_dir, + workspace_dir, + &CargoMetadataConfig { + features: crate::CargoFeatures::default(), + targets: targets.clone(), + extra_args: extra_args.clone(), + extra_env: extra_env.clone(), + }, &sysroot, - ); - Ok(Box::new((workspace, build_scripts))) - } - Err(e) => { - tracing::error!( - %e, - "Failed to read Cargo metadata from rustc source at {rustc_dir}", - ); - Err(Some(format!( - "Failed to read Cargo metadata from rustc source at {rustc_dir}: {e}" - ))) - } - } + false, + &|_| (), + ) { + Ok((meta, _error)) => { + let workspace = + CargoWorkspace::new(meta, cargo_toml.clone(), Env::default()); + let build_scripts = WorkspaceBuildScripts::rustc_crates( + &workspace, + workspace_dir, + extra_env, + &sysroot, + ); + Ok(Box::new((workspace, build_scripts))) + } + Err(e) => { + tracing::error!( + %e, + "Failed to read Cargo metadata from rustc source at {rustc_dir}", + ); + Err(Some(format!( + "Failed to read Cargo metadata from rustc source at {rustc_dir}: {e}" + ))) + } + } + }) + }); + + let cargo_metadata = s.spawn(|| { + CargoWorkspace::fetch_metadata( + cargo_toml, + workspace_dir, + &CargoMetadataConfig { + features: features.clone(), + targets: targets.clone(), + extra_args: extra_args.clone(), + extra_env: extra_env.clone(), + }, + &sysroot, + false, + &|_| (), + ) + }); + let loaded_sysroot = s.spawn(|| { + sysroot.load_workspace(&SysrootSourceWorkspaceConfig::CargoMetadata( + sysroot_metadata_config(extra_env, &targets), + )) + }); + let cargo_config_extra_env = + s.spawn(|| cargo_config_env(cargo_toml, extra_env, &sysroot)); + thread::Result::Ok(( + toolchain.join()?, + rustc_cfg.join()?, + data_layout.join()?, + rustc_dir.join()?, + loaded_sysroot.join()?, + cargo_metadata.join()?, + cargo_config_extra_env.join()?, + )) }); - let (meta, error) = CargoWorkspace::fetch_metadata( - cargo_toml, - cargo_toml.parent(), - &CargoMetadataConfig { - features: config.features.clone(), - targets, - extra_args: config.extra_args.clone(), - extra_env: config.extra_env.clone(), - }, - &sysroot, - false, - progress, - ) - .with_context(|| { + let ( + toolchain, + rustc_cfg, + data_layout, + rustc, + loaded_sysroot, + cargo_metadata, + cargo_config_extra_env, + ) = match join { + Ok(it) => it, + Err(e) => std::panic::resume_unwind(e), + }; + + let (meta, error) = cargo_metadata.with_context(|| { format!( "Failed to read Cargo metadata from Cargo.toml file {cargo_toml}, {toolchain:?}", ) })?; - let cargo_config_extra_env = cargo_config_env(cargo_toml, &config.extra_env, &sysroot); let cargo = CargoWorkspace::new(meta, cargo_toml.clone(), cargo_config_extra_env); + if let Some(loaded_sysroot) = loaded_sysroot { + sysroot.set_workspace(loaded_sysroot); + } Ok(ProjectWorkspace { kind: ProjectWorkspaceKind::Cargo { @@ -325,33 +386,67 @@ impl ProjectWorkspace { build_scripts: WorkspaceBuildScripts::default(), rustc, error: error.map(Arc::new), - set_test: config.set_test, + set_test: *set_test, }, sysroot, rustc_cfg, - cfg_overrides, + cfg_overrides: cfg_overrides.clone(), toolchain, target_layout: data_layout.map(Arc::from).map_err(|it| Arc::from(it.to_string())), - extra_includes: config.extra_includes.clone(), + extra_includes: extra_includes.clone(), }) } - pub fn load_inline(project_json: ProjectJson, config: &CargoConfig) -> ProjectWorkspace { + pub fn load_inline( + project_json: ProjectJson, + config: &CargoConfig, + progress: &dyn Fn(String), + ) -> ProjectWorkspace { + progress("Discovering sysroot".to_owned()); let mut sysroot = Sysroot::new(project_json.sysroot.clone(), project_json.sysroot_src.clone()); - sysroot.load_workspace(&SysrootSourceWorkspaceConfig::Stitched); + let loaded_sysroot = sysroot.load_workspace(&SysrootSourceWorkspaceConfig::Stitched); + if let Some(loaded_sysroot) = loaded_sysroot { + sysroot.set_workspace(loaded_sysroot); + } + + tracing::info!(workspace = %project_json.manifest_or_root(), src_root = ?sysroot.src_root(), root = ?sysroot.root(), "Using sysroot"); + progress("Querying project metadata".to_owned()); let query_config = QueryConfig::Rustc(&sysroot, project_json.path().as_ref()); - let toolchain = version::get(query_config, &config.extra_env).ok().flatten(); + let targets = target_tuple::get(query_config, config.target.as_deref(), &config.extra_env) + .unwrap_or_default(); + + // We spawn a bunch of processes to query various information about the workspace's + // toolchain and sysroot + // We can speed up loading a bit by spawning all of these processes in parallel (especially + // on systems were process spawning is delayed) + let join = thread::scope(|s| { + let toolchain = + s.spawn(|| version::get(query_config, &config.extra_env).ok().flatten()); + let rustc_cfg = s.spawn(|| { + rustc_cfg::get(query_config, targets.first().map(Deref::deref), &config.extra_env) + }); + let data_layout = s.spawn(|| { + target_data_layout::get( + query_config, + targets.first().map(Deref::deref), + &config.extra_env, + ) + }); + thread::Result::Ok((toolchain.join()?, rustc_cfg.join()?, data_layout.join()?)) + }); + + let (toolchain, rustc_cfg, target_layout) = match join { + Ok(it) => it, + Err(e) => std::panic::resume_unwind(e), + }; - let target = config.target.as_deref(); - let rustc_cfg = rustc_cfg::get(query_config, target, &config.extra_env); - let data_layout = target_data_layout::get(query_config, target, &config.extra_env); ProjectWorkspace { kind: ProjectWorkspaceKind::Json(project_json), sysroot, rustc_cfg, toolchain, - target_layout: data_layout.map(Arc::from).map_err(|it| Arc::from(it.to_string())), + target_layout: target_layout.map(Arc::from).map_err(|it| Arc::from(it.to_string())), cfg_overrides: config.cfg_overrides.clone(), extra_includes: config.extra_includes.clone(), } @@ -374,9 +469,12 @@ impl ProjectWorkspace { .unwrap_or_default(); let rustc_cfg = rustc_cfg::get(query_config, None, &config.extra_env); let data_layout = target_data_layout::get(query_config, None, &config.extra_env); - sysroot.load_workspace(&SysrootSourceWorkspaceConfig::CargoMetadata( + let loaded_sysroot = sysroot.load_workspace(&SysrootSourceWorkspaceConfig::CargoMetadata( sysroot_metadata_config(&config.extra_env, &targets), )); + if let Some(loaded_sysroot) = loaded_sysroot { + sysroot.set_workspace(loaded_sysroot); + } let cargo_script = CargoWorkspace::fetch_metadata( detached_file, diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/rustc_tests.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/rustc_tests.rs index 199f61e70f027..59dec9a9f36f0 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/rustc_tests.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/rustc_tests.rs @@ -75,7 +75,11 @@ impl Tester { }; let mut sysroot = Sysroot::discover(tmp_file.parent().unwrap(), &cargo_config.extra_env); - sysroot.load_workspace(&SysrootSourceWorkspaceConfig::default_cargo()); + let loaded_sysroot = sysroot.load_workspace(&SysrootSourceWorkspaceConfig::default_cargo()); + if let Some(loaded_sysroot) = loaded_sysroot { + sysroot.set_workspace(loaded_sysroot); + } + let data_layout = target_data_layout::get( QueryConfig::Rustc(&sysroot, tmp_file.parent().unwrap().as_ref()), None, diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/reload.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/reload.rs index e3c003dbf8b1e..ba72ea35df662 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/reload.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/reload.rs @@ -316,6 +316,7 @@ impl GlobalState { let workspace = project_model::ProjectWorkspace::load_inline( it.clone(), &cargo_config, + &progress, ); Ok(workspace) } diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/tests/slow-tests/main.rs b/src/tools/rust-analyzer/crates/rust-analyzer/tests/slow-tests/main.rs index e764bd477034e..a33b9e46fed2b 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/tests/slow-tests/main.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/tests/slow-tests/main.rs @@ -1152,7 +1152,11 @@ fn resolve_proc_macro() { &AbsPathBuf::assert_utf8(std::env::current_dir().unwrap()), &Default::default(), ); - sysroot.load_workspace(&project_model::SysrootSourceWorkspaceConfig::default_cargo()); + let loaded_sysroot = + sysroot.load_workspace(&project_model::SysrootSourceWorkspaceConfig::default_cargo()); + if let Some(loaded_sysroot) = loaded_sysroot { + sysroot.set_workspace(loaded_sysroot); + } let proc_macro_server_path = sysroot.discover_proc_macro_srv().unwrap(); From d9256abe72cb6a0e08c34edad64f24cb1bfb89e2 Mon Sep 17 00:00:00 2001 From: Lukas Wirth Date: Wed, 12 Feb 2025 15:15:47 +0100 Subject: [PATCH 37/75] Improve error recovery when method-calling a field --- .../crates/hir-ty/src/infer/expr.rs | 204 +++++++++++------- .../rust-analyzer/crates/hir-ty/src/tests.rs | 2 +- .../crates/hir-ty/src/tests/diagnostics.rs | 25 +++ 3 files changed, 152 insertions(+), 79 deletions(-) diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/infer/expr.rs b/src/tools/rust-analyzer/crates/hir-ty/src/infer/expr.rs index 86e5afdb50923..41d739a078e66 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/infer/expr.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/infer/expr.rs @@ -489,78 +489,7 @@ impl InferenceContext<'_> { ty } - Expr::Call { callee, args, .. } => { - let callee_ty = self.infer_expr(*callee, &Expectation::none(), ExprIsRead::Yes); - let mut derefs = Autoderef::new(&mut self.table, callee_ty.clone(), false, true); - let (res, derefed_callee) = loop { - let Some((callee_deref_ty, _)) = derefs.next() else { - break (None, callee_ty.clone()); - }; - if let Some(res) = derefs.table.callable_sig(&callee_deref_ty, args.len()) { - break (Some(res), callee_deref_ty); - } - }; - // if the function is unresolved, we use is_varargs=true to - // suppress the arg count diagnostic here - let is_varargs = - derefed_callee.callable_sig(self.db).is_some_and(|sig| sig.is_varargs) - || res.is_none(); - let (param_tys, ret_ty) = match res { - Some((func, params, ret_ty)) => { - let mut adjustments = auto_deref_adjust_steps(&derefs); - if let TyKind::Closure(c, _) = - self.table.resolve_completely(callee_ty.clone()).kind(Interner) - { - if let Some(par) = self.current_closure { - self.closure_dependencies.entry(par).or_default().push(*c); - } - self.deferred_closures.entry(*c).or_default().push(( - derefed_callee.clone(), - callee_ty.clone(), - params.clone(), - tgt_expr, - )); - } - if let Some(fn_x) = func { - self.write_fn_trait_method_resolution( - fn_x, - &derefed_callee, - &mut adjustments, - &callee_ty, - ¶ms, - tgt_expr, - ); - } - self.write_expr_adj(*callee, adjustments); - (params, ret_ty) - } - None => { - self.push_diagnostic(InferenceDiagnostic::ExpectedFunction { - call_expr: tgt_expr, - found: callee_ty.clone(), - }); - (Vec::new(), self.err_ty()) - } - }; - let indices_to_skip = self.check_legacy_const_generics(derefed_callee, args); - self.register_obligations_for_call(&callee_ty); - - let expected_inputs = self.expected_inputs_for_expected_output( - expected, - ret_ty.clone(), - param_tys.clone(), - ); - - self.check_call_arguments( - tgt_expr, - args, - &expected_inputs, - ¶m_tys, - &indices_to_skip, - is_varargs, - ); - self.normalize_associated_types_in(ret_ty) - } + Expr::Call { callee, args, .. } => self.infer_call(tgt_expr, *callee, args, expected), Expr::MethodCall { receiver, args, method_name, generic_args } => self .infer_method_call( tgt_expr, @@ -1872,6 +1801,107 @@ impl InferenceContext<'_> { } } + fn infer_call( + &mut self, + tgt_expr: ExprId, + callee: ExprId, + args: &[ExprId], + expected: &Expectation, + ) -> Ty { + let callee_ty = self.infer_expr(callee, &Expectation::none(), ExprIsRead::Yes); + let mut derefs = Autoderef::new(&mut self.table, callee_ty.clone(), false, true); + let (res, derefed_callee) = loop { + let Some((callee_deref_ty, _)) = derefs.next() else { + break (None, callee_ty.clone()); + }; + if let Some(res) = derefs.table.callable_sig(&callee_deref_ty, args.len()) { + break (Some(res), callee_deref_ty); + } + }; + // if the function is unresolved, we use is_varargs=true to + // suppress the arg count diagnostic here + let is_varargs = + derefed_callee.callable_sig(self.db).is_some_and(|sig| sig.is_varargs) || res.is_none(); + let (param_tys, ret_ty) = match res { + Some((func, params, ret_ty)) => { + let mut adjustments = auto_deref_adjust_steps(&derefs); + if let TyKind::Closure(c, _) = + self.table.resolve_completely(callee_ty.clone()).kind(Interner) + { + if let Some(par) = self.current_closure { + self.closure_dependencies.entry(par).or_default().push(*c); + } + self.deferred_closures.entry(*c).or_default().push(( + derefed_callee.clone(), + callee_ty.clone(), + params.clone(), + tgt_expr, + )); + } + if let Some(fn_x) = func { + self.write_fn_trait_method_resolution( + fn_x, + &derefed_callee, + &mut adjustments, + &callee_ty, + ¶ms, + tgt_expr, + ); + } + self.write_expr_adj(callee, adjustments); + (params, ret_ty) + } + None => { + self.push_diagnostic(InferenceDiagnostic::ExpectedFunction { + call_expr: tgt_expr, + found: callee_ty.clone(), + }); + (Vec::new(), self.err_ty()) + } + }; + let indices_to_skip = self.check_legacy_const_generics(derefed_callee, args); + self.check_call( + tgt_expr, + args, + callee_ty, + ¶m_tys, + ret_ty, + &indices_to_skip, + is_varargs, + expected, + ) + } + + fn check_call( + &mut self, + tgt_expr: ExprId, + args: &[ExprId], + callee_ty: Ty, + param_tys: &[Ty], + ret_ty: Ty, + indices_to_skip: &[u32], + is_varargs: bool, + expected: &Expectation, + ) -> Ty { + self.register_obligations_for_call(&callee_ty); + + let expected_inputs = self.expected_inputs_for_expected_output( + expected, + ret_ty.clone(), + param_tys.to_owned(), + ); + + self.check_call_arguments( + tgt_expr, + args, + &expected_inputs, + param_tys, + indices_to_skip, + is_varargs, + ); + self.normalize_associated_types_in(ret_ty) + } + fn infer_method_call( &mut self, tgt_expr: ExprId, @@ -1939,14 +1969,32 @@ impl InferenceContext<'_> { expr: tgt_expr, receiver: receiver_ty.clone(), name: method_name.clone(), - field_with_same_name: field_with_same_name_exists, + field_with_same_name: field_with_same_name_exists.clone(), assoc_func_with_same_name, }); - ( - receiver_ty, - Binders::empty(Interner, self.err_ty()), - Substitution::empty(Interner), - ) + + return match field_with_same_name_exists { + Some(field_ty) => match field_ty.callable_sig(self.db) { + Some(sig) => self.check_call( + tgt_expr, + args, + field_ty, + sig.params(), + sig.ret().clone(), + &[], + true, + expected, + ), + None => { + self.check_call_arguments(tgt_expr, args, &[], &[], &[], true); + field_ty + } + }, + None => { + self.check_call_arguments(tgt_expr, args, &[], &[], &[], true); + self.err_ty() + } + }; } }; self.check_method_call(tgt_expr, args, method_ty, substs, receiver_ty, expected) diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/tests.rs b/src/tools/rust-analyzer/crates/hir-ty/src/tests.rs index 69ec35f406df4..f5a4d4ff35c36 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/tests.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/tests.rs @@ -117,7 +117,7 @@ fn check_impl( expected.trim_start_matches("adjustments:").trim().to_owned(), ); } else { - panic!("unexpected annotation: {expected}"); + panic!("unexpected annotation: {expected} @ {range:?}"); } had_annotations = true; } diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/tests/diagnostics.rs b/src/tools/rust-analyzer/crates/hir-ty/src/tests/diagnostics.rs index def06f2d59d2a..d0d31bf2a5a69 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/tests/diagnostics.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/tests/diagnostics.rs @@ -153,3 +153,28 @@ fn consume() -> Option<()> { "#, ); } + +#[test] +fn method_call_on_field() { + check( + r#" +struct S { + field: fn() -> u32, + field2: u32 +} + +fn main() { + let s = S { field: || 0, field2: 0 }; + s.field(0); + // ^ type: i32 + // ^^^^^^^^^^ type: u32 + s.field2(0); + // ^ type: i32 + // ^^^^^^^^^^^ type: u32 + s.not_a_field(0); + // ^ type: i32 + // ^^^^^^^^^^^^^^^^ type: {unknown} +} +"#, + ); +} From 875f3e2c883fd71eb5210f34790e705b45097442 Mon Sep 17 00:00:00 2001 From: Lukas Wirth Date: Wed, 12 Feb 2025 16:32:11 +0100 Subject: [PATCH 38/75] Rename sysroot src/lib related things --- .../crates/project-model/src/lib.rs | 10 +- .../crates/project-model/src/sysroot.rs | 158 ++++++++++-------- .../crates/project-model/src/tests.rs | 12 +- .../crates/project-model/src/workspace.rs | 37 ++-- .../rust-analyzer/src/cli/rustc_tests.rs | 6 +- .../rust-analyzer/tests/slow-tests/main.rs | 2 +- 6 files changed, 121 insertions(+), 104 deletions(-) diff --git a/src/tools/rust-analyzer/crates/project-model/src/lib.rs b/src/tools/rust-analyzer/crates/project-model/src/lib.rs index fc1fd7b877fcc..0c73447468241 100644 --- a/src/tools/rust-analyzer/crates/project-model/src/lib.rs +++ b/src/tools/rust-analyzer/crates/project-model/src/lib.rs @@ -260,19 +260,19 @@ fn parse_cfg(s: &str) -> Result { } #[derive(Clone, Debug, PartialEq, Eq)] -pub enum SysrootSourceWorkspaceConfig { +pub enum RustSourceWorkspaceConfig { CargoMetadata(CargoMetadataConfig), Stitched, } -impl Default for SysrootSourceWorkspaceConfig { +impl Default for RustSourceWorkspaceConfig { fn default() -> Self { - SysrootSourceWorkspaceConfig::default_cargo() + RustSourceWorkspaceConfig::default_cargo() } } -impl SysrootSourceWorkspaceConfig { +impl RustSourceWorkspaceConfig { pub fn default_cargo() -> Self { - SysrootSourceWorkspaceConfig::CargoMetadata(Default::default()) + RustSourceWorkspaceConfig::CargoMetadata(Default::default()) } } diff --git a/src/tools/rust-analyzer/crates/project-model/src/sysroot.rs b/src/tools/rust-analyzer/crates/project-model/src/sysroot.rs index 4659d5288b1b6..510c18dd147ef 100644 --- a/src/tools/rust-analyzer/crates/project-model/src/sysroot.rs +++ b/src/tools/rust-analyzer/crates/project-model/src/sysroot.rs @@ -22,19 +22,19 @@ use toolchain::{probe_for_binary, Tool}; use crate::{ cargo_workspace::CargoMetadataConfig, utf8_stdout, CargoWorkspace, ManifestPath, - SysrootSourceWorkspaceConfig, + RustSourceWorkspaceConfig, }; #[derive(Debug, Clone, PartialEq, Eq)] pub struct Sysroot { root: Option, - src_root: Option, - workspace: SysrootWorkspace, + rust_lib_src_root: Option, + workspace: RustLibSrcWorkspace, error: Option, } #[derive(Debug, Clone, Eq, PartialEq)] -pub enum SysrootWorkspace { +pub enum RustLibSrcWorkspace { Workspace(CargoWorkspace), Stitched(Stitched), Empty, @@ -42,18 +42,20 @@ pub enum SysrootWorkspace { #[derive(Debug, Clone, Eq, PartialEq)] pub struct Stitched { - crates: Arena, + crates: Arena, } -impl ops::Index for Stitched { - type Output = SysrootCrateData; - fn index(&self, index: SysrootCrate) -> &SysrootCrateData { +impl ops::Index for Stitched { + type Output = RustLibSrcCrateData; + fn index(&self, index: RustLibSrcCrate) -> &RustLibSrcCrateData { &self.crates[index] } } impl Stitched { - pub(crate) fn public_deps(&self) -> impl Iterator + '_ { + pub(crate) fn public_deps( + &self, + ) -> impl Iterator + '_ { // core is added as a dependency before std in order to // mimic rustcs dependency order [("core", true), ("alloc", false), ("std", true), ("test", false)].into_iter().filter_map( @@ -63,32 +65,37 @@ impl Stitched { ) } - pub(crate) fn proc_macro(&self) -> Option { + pub(crate) fn proc_macro(&self) -> Option { self.by_name("proc_macro") } - pub(crate) fn crates(&self) -> impl ExactSizeIterator + '_ { + pub(crate) fn crates(&self) -> impl ExactSizeIterator + '_ { self.crates.iter().map(|(id, _data)| id) } - fn by_name(&self, name: &str) -> Option { + fn by_name(&self, name: &str) -> Option { let (id, _data) = self.crates.iter().find(|(_id, data)| data.name == name)?; Some(id) } } -pub(crate) type SysrootCrate = Idx; +pub(crate) type RustLibSrcCrate = Idx; #[derive(Debug, Clone, Eq, PartialEq)] -pub(crate) struct SysrootCrateData { +pub(crate) struct RustLibSrcCrateData { pub(crate) name: String, pub(crate) root: ManifestPath, - pub(crate) deps: Vec, + pub(crate) deps: Vec, } impl Sysroot { pub const fn empty() -> Sysroot { - Sysroot { root: None, src_root: None, workspace: SysrootWorkspace::Empty, error: None } + Sysroot { + root: None, + rust_lib_src_root: None, + workspace: RustLibSrcWorkspace::Empty, + error: None, + } } /// Returns sysroot "root" directory, where `bin/`, `etc/`, `lib/`, `libexec/` @@ -100,15 +107,15 @@ impl Sysroot { /// Returns the sysroot "source" directory, where stdlib sources are located, like: /// `$HOME/.rustup/toolchains/nightly-2022-07-23-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library` - pub fn src_root(&self) -> Option<&AbsPath> { - self.src_root.as_deref() + pub fn rust_lib_src_root(&self) -> Option<&AbsPath> { + self.rust_lib_src_root.as_deref() } - pub fn is_empty(&self) -> bool { + pub fn is_rust_lib_src_empty(&self) -> bool { match &self.workspace { - SysrootWorkspace::Workspace(ws) => ws.packages().next().is_none(), - SysrootWorkspace::Stitched(stitched) => stitched.crates.is_empty(), - SysrootWorkspace::Empty => true, + RustLibSrcWorkspace::Workspace(ws) => ws.packages().next().is_none(), + RustLibSrcWorkspace::Stitched(stitched) => stitched.crates.is_empty(), + RustLibSrcWorkspace::Empty => true, } } @@ -118,13 +125,13 @@ impl Sysroot { pub fn num_packages(&self) -> usize { match &self.workspace { - SysrootWorkspace::Workspace(ws) => ws.packages().count(), - SysrootWorkspace::Stitched(c) => c.crates().count(), - SysrootWorkspace::Empty => 0, + RustLibSrcWorkspace::Workspace(ws) => ws.packages().count(), + RustLibSrcWorkspace::Stitched(c) => c.crates().count(), + RustLibSrcWorkspace::Empty => 0, } } - pub(crate) fn workspace(&self) -> &SysrootWorkspace { + pub(crate) fn workspace(&self) -> &RustLibSrcWorkspace { &self.workspace } } @@ -133,33 +140,33 @@ impl Sysroot { /// Attempts to discover the toolchain's sysroot from the given `dir`. pub fn discover(dir: &AbsPath, extra_env: &FxHashMap) -> Sysroot { let sysroot_dir = discover_sysroot_dir(dir, extra_env); - let sysroot_src_dir = sysroot_dir.as_ref().ok().map(|sysroot_dir| { - discover_sysroot_src_dir_or_add_component(sysroot_dir, dir, extra_env) + let rust_lib_src_dir = sysroot_dir.as_ref().ok().map(|sysroot_dir| { + discover_rust_lib_src_dir_or_add_component(sysroot_dir, dir, extra_env) }); - Sysroot::assemble(Some(sysroot_dir), sysroot_src_dir) + Sysroot::assemble(Some(sysroot_dir), rust_lib_src_dir) } pub fn discover_with_src_override( current_dir: &AbsPath, extra_env: &FxHashMap, - sysroot_src_dir: AbsPathBuf, + rust_lib_src_dir: AbsPathBuf, ) -> Sysroot { let sysroot_dir = discover_sysroot_dir(current_dir, extra_env); - Sysroot::assemble(Some(sysroot_dir), Some(Ok(sysroot_src_dir))) + Sysroot::assemble(Some(sysroot_dir), Some(Ok(rust_lib_src_dir))) } - pub fn discover_sysroot_src_dir(sysroot_dir: AbsPathBuf) -> Sysroot { - let sysroot_src_dir = discover_sysroot_src_dir(&sysroot_dir) + pub fn discover_rust_lib_src_dir(sysroot_dir: AbsPathBuf) -> Sysroot { + let rust_lib_src_dir = discover_rust_lib_src_dir(&sysroot_dir) .ok_or_else(|| format_err!("can't find standard library sources in {sysroot_dir}")); - Sysroot::assemble(Some(Ok(sysroot_dir)), Some(sysroot_src_dir)) + Sysroot::assemble(Some(Ok(sysroot_dir)), Some(rust_lib_src_dir)) } pub fn discover_rustc_src(&self) -> Option { get_rustc_src(self.root()?) } - pub fn new(sysroot_dir: Option, sysroot_src_dir: Option) -> Sysroot { - Self::assemble(sysroot_dir.map(Ok), sysroot_src_dir.map(Ok)) + pub fn new(sysroot_dir: Option, rust_lib_src_dir: Option) -> Sysroot { + Self::assemble(sysroot_dir.map(Ok), rust_lib_src_dir.map(Ok)) } /// Returns a command to run a tool preferring the cargo proxies if the sysroot exists. @@ -200,7 +207,7 @@ impl Sysroot { fn assemble( sysroot_dir: Option>, - sysroot_src_dir: Option>, + rust_lib_src_dir: Option>, ) -> Sysroot { let mut errors = String::new(); let root = match sysroot_dir { @@ -211,8 +218,8 @@ impl Sysroot { } None => None, }; - let src_root = match sysroot_src_dir { - Some(Ok(sysroot_src_dir)) => Some(sysroot_src_dir), + let rust_lib_src_root = match rust_lib_src_dir { + Some(Ok(rust_lib_src_dir)) => Some(rust_lib_src_dir), Some(Err(e)) => { format_to!(errors, "{e}\n"); None @@ -221,21 +228,22 @@ impl Sysroot { }; Sysroot { root, - src_root, - workspace: SysrootWorkspace::Empty, + rust_lib_src_root, + workspace: RustLibSrcWorkspace::Empty, error: errors.is_empty().not().then_some(errors), } } pub fn load_workspace( &self, - sysroot_source_config: &SysrootSourceWorkspaceConfig, - ) -> Option { - assert!(matches!(self.workspace, SysrootWorkspace::Empty), "workspace already loaded"); - let Self { root: _, src_root: Some(src_root), workspace: _, error: _ } = self else { + sysroot_source_config: &RustSourceWorkspaceConfig, + ) -> Option { + assert!(matches!(self.workspace, RustLibSrcWorkspace::Empty), "workspace already loaded"); + let Self { root: _, rust_lib_src_root: Some(src_root), workspace: _, error: _ } = self + else { return None; }; - if let SysrootSourceWorkspaceConfig::CargoMetadata(cargo_config) = sysroot_source_config { + if let RustSourceWorkspaceConfig::CargoMetadata(cargo_config) = sysroot_source_config { let library_manifest = ManifestPath::try_from(src_root.join("Cargo.toml")).unwrap(); if fs::metadata(&library_manifest).is_ok() { if let Some(loaded) = @@ -258,7 +266,7 @@ impl Sysroot { .find(|it| fs::metadata(it).is_ok()); if let Some(root) = root { - stitched.crates.alloc(SysrootCrateData { + stitched.crates.alloc(RustLibSrcCrateData { name: name.into(), root, deps: Vec::new(), @@ -289,21 +297,23 @@ impl Sysroot { } } } - Some(SysrootWorkspace::Stitched(stitched)) + Some(RustLibSrcWorkspace::Stitched(stitched)) } - pub fn set_workspace(&mut self, workspace: SysrootWorkspace) { + pub fn set_workspace(&mut self, workspace: RustLibSrcWorkspace) { self.workspace = workspace; if self.error.is_none() { - if let Some(src_root) = &self.src_root { + if let Some(src_root) = &self.rust_lib_src_root { let has_core = match &self.workspace { - SysrootWorkspace::Workspace(ws) => ws.packages().any(|p| ws[p].name == "core"), - SysrootWorkspace::Stitched(stitched) => stitched.by_name("core").is_some(), - SysrootWorkspace::Empty => true, + RustLibSrcWorkspace::Workspace(ws) => { + ws.packages().any(|p| ws[p].name == "core") + } + RustLibSrcWorkspace::Stitched(stitched) => stitched.by_name("core").is_some(), + RustLibSrcWorkspace::Empty => true, }; if !has_core { - let var_note = if env::var_os("RUST_SRC_PATH").is_some() { - " (env var `RUST_SRC_PATH` is set and may be incorrect, try unsetting it)" + let var_note = if env::var_os("rust_lib_src_PATH").is_some() { + " (env var `rust_lib_src_PATH` is set and may be incorrect, try unsetting it)" } else { ", try running `rustup component add rust-src` to possibly fix this" }; @@ -317,9 +327,9 @@ impl Sysroot { fn load_library_via_cargo( library_manifest: ManifestPath, - sysroot_src_dir: &AbsPathBuf, + rust_lib_src_dir: &AbsPathBuf, cargo_config: &CargoMetadataConfig, - ) -> Option { + ) -> Option { tracing::debug!("Loading library metadata: {library_manifest}"); let mut cargo_config = cargo_config.clone(); // the sysroot uses `public-dependency`, so we make cargo think it's a nightly @@ -330,7 +340,7 @@ impl Sysroot { let (mut res, _) = match CargoWorkspace::fetch_metadata( &library_manifest, - sysroot_src_dir, + rust_lib_src_dir, &cargo_config, &Sysroot::empty(), // Make sure we never attempt to write to the sysroot @@ -394,7 +404,7 @@ impl Sysroot { }); let cargo_workspace = CargoWorkspace::new(res, library_manifest, Default::default()); - Some(SysrootWorkspace::Workspace(cargo_workspace)) + Some(RustLibSrcWorkspace::Workspace(cargo_workspace)) } } @@ -410,36 +420,38 @@ fn discover_sysroot_dir( Ok(AbsPathBuf::assert(Utf8PathBuf::from(stdout))) } -fn discover_sysroot_src_dir(sysroot_path: &AbsPathBuf) -> Option { - if let Ok(path) = env::var("RUST_SRC_PATH") { +fn discover_rust_lib_src_dir(sysroot_path: &AbsPathBuf) -> Option { + if let Ok(path) = env::var("rust_lib_src_PATH") { if let Ok(path) = AbsPathBuf::try_from(path.as_str()) { let core = path.join("core"); if fs::metadata(&core).is_ok() { - tracing::debug!("Discovered sysroot by RUST_SRC_PATH: {path}"); + tracing::debug!("Discovered sysroot by rust_lib_src_PATH: {path}"); return Some(path); } - tracing::debug!("RUST_SRC_PATH is set, but is invalid (no core: {core:?}), ignoring"); + tracing::debug!( + "rust_lib_src_PATH is set, but is invalid (no core: {core:?}), ignoring" + ); } else { - tracing::debug!("RUST_SRC_PATH is set, but is invalid, ignoring"); + tracing::debug!("rust_lib_src_PATH is set, but is invalid, ignoring"); } } - get_rust_src(sysroot_path) + get_rust_lib_src(sysroot_path) } -fn discover_sysroot_src_dir_or_add_component( +fn discover_rust_lib_src_dir_or_add_component( sysroot_path: &AbsPathBuf, current_dir: &AbsPath, extra_env: &FxHashMap, ) -> Result { - discover_sysroot_src_dir(sysroot_path) + discover_rust_lib_src_dir(sysroot_path) .or_else(|| { let mut rustup = toolchain::command(Tool::Rustup.prefer_proxy(), current_dir); rustup.envs(extra_env); rustup.args(["component", "add", "rust-src"]); tracing::info!("adding rust-src component by {:?}", rustup); utf8_stdout(&mut rustup).ok()?; - get_rust_src(sysroot_path) + get_rust_lib_src(sysroot_path) }) .ok_or_else(|| { tracing::error!(%sysroot_path, "can't load standard library, try installing `rust-src`"); @@ -464,11 +476,11 @@ fn get_rustc_src(sysroot_path: &AbsPath) -> Option { } } -fn get_rust_src(sysroot_path: &AbsPath) -> Option { - let rust_src = sysroot_path.join("lib/rustlib/src/rust/library"); - tracing::debug!("checking sysroot library: {rust_src}"); - if fs::metadata(&rust_src).is_ok() { - Some(rust_src) +fn get_rust_lib_src(sysroot_path: &AbsPath) -> Option { + let rust_lib_src = sysroot_path.join("lib/rustlib/src/rust/library"); + tracing::debug!("checking sysroot library: {rust_lib_src}"); + if fs::metadata(&rust_lib_src).is_ok() { + Some(rust_lib_src) } else { None } diff --git a/src/tools/rust-analyzer/crates/project-model/src/tests.rs b/src/tools/rust-analyzer/crates/project-model/src/tests.rs index 6d9e68f0043dc..25e4368d95a8c 100644 --- a/src/tools/rust-analyzer/crates/project-model/src/tests.rs +++ b/src/tools/rust-analyzer/crates/project-model/src/tests.rs @@ -12,9 +12,9 @@ use span::FileId; use triomphe::Arc; use crate::{ - sysroot::SysrootWorkspace, workspace::ProjectWorkspaceKind, CargoWorkspace, CfgOverrides, - ManifestPath, ProjectJson, ProjectJsonData, ProjectWorkspace, Sysroot, - SysrootSourceWorkspaceConfig, WorkspaceBuildScripts, + sysroot::RustLibSrcWorkspace, workspace::ProjectWorkspaceKind, CargoWorkspace, CfgOverrides, + ManifestPath, ProjectJson, ProjectJsonData, ProjectWorkspace, RustSourceWorkspaceConfig, + Sysroot, WorkspaceBuildScripts, }; fn load_cargo(file: &str) -> (CrateGraph, ProcMacroPaths) { @@ -125,7 +125,7 @@ fn get_fake_sysroot() -> Sysroot { let sysroot_dir = AbsPathBuf::assert(sysroot_path); let sysroot_src_dir = sysroot_dir.clone(); let mut sysroot = Sysroot::new(Some(sysroot_dir), Some(sysroot_src_dir)); - let loaded_sysroot = sysroot.load_workspace(&SysrootSourceWorkspaceConfig::default_cargo()); + let loaded_sysroot = sysroot.load_workspace(&RustSourceWorkspaceConfig::default_cargo()); if let Some(loaded_sysroot) = loaded_sysroot { sysroot.set_workspace(loaded_sysroot); } @@ -274,11 +274,11 @@ fn smoke_test_real_sysroot_cargo() { AbsPath::assert(Utf8Path::new(env!("CARGO_MANIFEST_DIR"))), &Default::default(), ); - let loaded_sysroot = sysroot.load_workspace(&SysrootSourceWorkspaceConfig::default_cargo()); + let loaded_sysroot = sysroot.load_workspace(&RustSourceWorkspaceConfig::default_cargo()); if let Some(loaded_sysroot) = loaded_sysroot { sysroot.set_workspace(loaded_sysroot); } - assert!(matches!(sysroot.workspace(), SysrootWorkspace::Workspace(_))); + assert!(matches!(sysroot.workspace(), RustLibSrcWorkspace::Workspace(_))); let project_workspace = ProjectWorkspace { kind: ProjectWorkspaceKind::Cargo { cargo: cargo_workspace, diff --git a/src/tools/rust-analyzer/crates/project-model/src/workspace.rs b/src/tools/rust-analyzer/crates/project-model/src/workspace.rs index e21c373b75ffc..4f8449cb68c30 100644 --- a/src/tools/rust-analyzer/crates/project-model/src/workspace.rs +++ b/src/tools/rust-analyzer/crates/project-model/src/workspace.rs @@ -23,10 +23,10 @@ use crate::{ cargo_workspace::{CargoMetadataConfig, DepKind, PackageData, RustLibSource}, env::{cargo_config_env, inject_cargo_env, inject_cargo_package_env, inject_rustc_tool_env}, project_json::{Crate, CrateArrayIdx}, - sysroot::{SysrootCrate, SysrootWorkspace}, + sysroot::{RustLibSrcCrate, RustLibSrcWorkspace}, toolchain_info::{rustc_cfg, target_data_layout, target_tuple, version, QueryConfig}, CargoConfig, CargoWorkspace, CfgOverrides, InvocationStrategy, ManifestPath, Package, - ProjectJson, ProjectManifest, Sysroot, SysrootSourceWorkspaceConfig, TargetData, TargetKind, + ProjectJson, ProjectManifest, RustSourceWorkspaceConfig, Sysroot, TargetData, TargetKind, WorkspaceBuildScripts, }; use tracing::{debug, error, info}; @@ -230,7 +230,7 @@ impl ProjectWorkspace { ) } (Some(RustLibSource::Path(path)), None) => { - Sysroot::discover_sysroot_src_dir(path.clone()) + Sysroot::discover_rust_lib_src_dir(path.clone()) } (Some(RustLibSource::Path(sysroot)), Some(sysroot_src)) => { Sysroot::new(Some(sysroot.clone()), Some(sysroot_src.clone())) @@ -238,7 +238,7 @@ impl ProjectWorkspace { (None, _) => Sysroot::empty(), }; - tracing::info!(workspace = %cargo_toml, src_root = ?sysroot.src_root(), root = ?sysroot.root(), "Using sysroot"); + tracing::info!(workspace = %cargo_toml, src_root = ?sysroot.rust_lib_src_root(), root = ?sysroot.root(), "Using sysroot"); progress("Querying project metadata".to_owned()); let toolchain_config = QueryConfig::Cargo(&sysroot, cargo_toml); let targets = @@ -340,7 +340,7 @@ impl ProjectWorkspace { ) }); let loaded_sysroot = s.spawn(|| { - sysroot.load_workspace(&SysrootSourceWorkspaceConfig::CargoMetadata( + sysroot.load_workspace(&RustSourceWorkspaceConfig::CargoMetadata( sysroot_metadata_config(extra_env, &targets), )) }); @@ -405,12 +405,12 @@ impl ProjectWorkspace { progress("Discovering sysroot".to_owned()); let mut sysroot = Sysroot::new(project_json.sysroot.clone(), project_json.sysroot_src.clone()); - let loaded_sysroot = sysroot.load_workspace(&SysrootSourceWorkspaceConfig::Stitched); + let loaded_sysroot = sysroot.load_workspace(&RustSourceWorkspaceConfig::Stitched); if let Some(loaded_sysroot) = loaded_sysroot { sysroot.set_workspace(loaded_sysroot); } - tracing::info!(workspace = %project_json.manifest_or_root(), src_root = ?sysroot.src_root(), root = ?sysroot.root(), "Using sysroot"); + tracing::info!(workspace = %project_json.manifest_or_root(), src_root = ?sysroot.rust_lib_src_root(), root = ?sysroot.root(), "Using sysroot"); progress("Querying project metadata".to_owned()); let query_config = QueryConfig::Rustc(&sysroot, project_json.path().as_ref()); let targets = target_tuple::get(query_config, config.target.as_deref(), &config.extra_env) @@ -458,7 +458,7 @@ impl ProjectWorkspace { ) -> anyhow::Result { let dir = detached_file.parent(); let mut sysroot = match &config.sysroot { - Some(RustLibSource::Path(path)) => Sysroot::discover_sysroot_src_dir(path.clone()), + Some(RustLibSource::Path(path)) => Sysroot::discover_rust_lib_src_dir(path.clone()), Some(RustLibSource::Discover) => Sysroot::discover(dir, &config.extra_env), None => Sysroot::empty(), }; @@ -469,7 +469,7 @@ impl ProjectWorkspace { .unwrap_or_default(); let rustc_cfg = rustc_cfg::get(query_config, None, &config.extra_env); let data_layout = target_data_layout::get(query_config, None, &config.extra_env); - let loaded_sysroot = sysroot.load_workspace(&SysrootSourceWorkspaceConfig::CargoMetadata( + let loaded_sysroot = sysroot.load_workspace(&RustSourceWorkspaceConfig::CargoMetadata( sysroot_metadata_config(&config.extra_env, &targets), )); if let Some(loaded_sysroot) = loaded_sysroot { @@ -643,7 +643,7 @@ impl ProjectWorkspace { pub fn to_roots(&self) -> Vec { let mk_sysroot = || { let mut r = match self.sysroot.workspace() { - SysrootWorkspace::Workspace(ws) => ws + RustLibSrcWorkspace::Workspace(ws) => ws .packages() .filter_map(|pkg| { if ws[pkg].is_local { @@ -664,12 +664,17 @@ impl ProjectWorkspace { Some(PackageRoot { is_local: false, include, exclude }) }) .collect(), - SysrootWorkspace::Stitched(_) | SysrootWorkspace::Empty => vec![], + RustLibSrcWorkspace::Stitched(_) | RustLibSrcWorkspace::Empty => vec![], }; r.push(PackageRoot { is_local: false, - include: self.sysroot.src_root().map(|it| it.to_path_buf()).into_iter().collect(), + include: self + .sysroot + .rust_lib_src_root() + .map(|it| it.to_path_buf()) + .into_iter() + .collect(), exclude: Vec::new(), }); r @@ -1483,7 +1488,7 @@ fn sysroot_to_crate_graph( ) -> (SysrootPublicDeps, Option) { let _p = tracing::info_span!("sysroot_to_crate_graph").entered(); match sysroot.workspace() { - SysrootWorkspace::Workspace(cargo) => { + RustLibSrcWorkspace::Workspace(cargo) => { let (mut cg, mut pm) = cargo_to_crate_graph( load, None, @@ -1558,7 +1563,7 @@ fn sysroot_to_crate_graph( (SysrootPublicDeps { deps: pub_deps }, libproc_macro) } - SysrootWorkspace::Stitched(stitched) => { + RustLibSrcWorkspace::Stitched(stitched) => { let cfg_options = Arc::new({ let mut cfg_options = CfgOptions::default(); cfg_options.extend(rustc_cfg); @@ -1566,7 +1571,7 @@ fn sysroot_to_crate_graph( cfg_options.insert_atom(sym::miri.clone()); cfg_options }); - let sysroot_crates: FxHashMap = stitched + let sysroot_crates: FxHashMap = stitched .crates() .filter_map(|krate| { let file_id = load(&stitched[krate].root)?; @@ -1611,7 +1616,7 @@ fn sysroot_to_crate_graph( stitched.proc_macro().and_then(|it| sysroot_crates.get(&it).copied()); (public_deps, libproc_macro) } - SysrootWorkspace::Empty => (SysrootPublicDeps { deps: vec![] }, None), + RustLibSrcWorkspace::Empty => (SysrootPublicDeps { deps: vec![] }, None), } } diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/rustc_tests.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/rustc_tests.rs index 59dec9a9f36f0..b9b7ad1faf891 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/rustc_tests.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/rustc_tests.rs @@ -12,8 +12,8 @@ use paths::Utf8PathBuf; use profile::StopWatch; use project_model::toolchain_info::{target_data_layout, QueryConfig}; use project_model::{ - CargoConfig, ManifestPath, ProjectWorkspace, ProjectWorkspaceKind, RustLibSource, Sysroot, - SysrootSourceWorkspaceConfig, + CargoConfig, ManifestPath, ProjectWorkspace, ProjectWorkspaceKind, RustLibSource, + RustSourceWorkspaceConfig, Sysroot, }; use load_cargo::{load_workspace, LoadCargoConfig, ProcMacroServerChoice}; @@ -75,7 +75,7 @@ impl Tester { }; let mut sysroot = Sysroot::discover(tmp_file.parent().unwrap(), &cargo_config.extra_env); - let loaded_sysroot = sysroot.load_workspace(&SysrootSourceWorkspaceConfig::default_cargo()); + let loaded_sysroot = sysroot.load_workspace(&RustSourceWorkspaceConfig::default_cargo()); if let Some(loaded_sysroot) = loaded_sysroot { sysroot.set_workspace(loaded_sysroot); } diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/tests/slow-tests/main.rs b/src/tools/rust-analyzer/crates/rust-analyzer/tests/slow-tests/main.rs index a33b9e46fed2b..6f26bdc2cf026 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/tests/slow-tests/main.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/tests/slow-tests/main.rs @@ -1153,7 +1153,7 @@ fn resolve_proc_macro() { &Default::default(), ); let loaded_sysroot = - sysroot.load_workspace(&project_model::SysrootSourceWorkspaceConfig::default_cargo()); + sysroot.load_workspace(&project_model::RustSourceWorkspaceConfig::default_cargo()); if let Some(loaded_sysroot) = loaded_sysroot { sysroot.set_workspace(loaded_sysroot); } From 7ef1fcf972be411f4e4f6855b963904b90c6eb5e Mon Sep 17 00:00:00 2001 From: Wilfred Hughes Date: Tue, 11 Feb 2025 15:16:54 -0800 Subject: [PATCH 39/75] manual: Separate out installation and configuration pages Organise the installation content into: * VS Code instructions * Binary installation * Editor configuration --- .../rust-analyzer/docs/book/src/SUMMARY.md | 3 + .../docs/book/src/installation.md | 632 +----------------- .../docs/book/src/other_editors.md | 423 ++++++++++++ .../docs/book/src/rust_analyzer_binary.md | 74 ++ .../rust-analyzer/docs/book/src/vs_code.md | 121 ++++ 5 files changed, 635 insertions(+), 618 deletions(-) create mode 100644 src/tools/rust-analyzer/docs/book/src/other_editors.md create mode 100644 src/tools/rust-analyzer/docs/book/src/rust_analyzer_binary.md create mode 100644 src/tools/rust-analyzer/docs/book/src/vs_code.md diff --git a/src/tools/rust-analyzer/docs/book/src/SUMMARY.md b/src/tools/rust-analyzer/docs/book/src/SUMMARY.md index b3ed1e6df0a7a..9dc4f1f2d2a14 100644 --- a/src/tools/rust-analyzer/docs/book/src/SUMMARY.md +++ b/src/tools/rust-analyzer/docs/book/src/SUMMARY.md @@ -2,6 +2,9 @@ - [Introduction](README.md) - [Installation](installation.md) + - [VS Code](vs_code.md) + - [rust-analyzer Binary](rust_analyzer_binary.md) + - [Other Editors](other_editors.md) - [Troubleshooting](troubleshooting.md) - [Configuration](configuration.md) - [Non-Cargo Based Projects](non_cargo_based_projects.md) diff --git a/src/tools/rust-analyzer/docs/book/src/installation.md b/src/tools/rust-analyzer/docs/book/src/installation.md index 5b697e9bc33d4..3a4c0cf227749 100644 --- a/src/tools/rust-analyzer/docs/book/src/installation.md +++ b/src/tools/rust-analyzer/docs/book/src/installation.md @@ -1,19 +1,19 @@ # Installation -In theory, one should be able to just install the [`rust-analyzer` -binary](#rust-analyzer-language-server-binary) and have it automatically -work with any editor. We are not there yet, so some editor specific -setup is required. +To use rust-analyzer, you need a `rust-analyzer` binary, a text editor +that supports LSP, and the source code of the Rust standard library. -Additionally, rust-analyzer needs the sources of the standard library. -If the source code is not present, rust-analyzer will attempt to install -it automatically. +If you're [using VS Code](./vs_code.html), the extension bundles a +copy of the `rust-analyzer` binary. For other editors, you'll need to +[install the binary](./rust_analyzer_binary.html) and [configure your +editor](./other_editors.html). -To add the sources manually, run the following command: +## Rust Standard Library - $ rustup component add rust-src +rust-analyzer will attempt to install the standard library source code +automatically. You can also install it manually with `rustup`. -## Toolchain + $ rustup component add rust-src Only the latest stable standard library source is officially supported for use with rust-analyzer. If you are using an older toolchain or have @@ -25,620 +25,16 @@ If you are using an override in your project, you can still force rust-analyzer to use the stable toolchain via the environment variable `RUSTUP_TOOLCHAIN`. For example, with VS Code or coc-rust-analyzer: - { "rust-analyzer.server.extraEnv": { "RUSTUP_TOOLCHAIN": "stable" } } - -## VS Code - -This is the best supported editor at the moment. The rust-analyzer -plugin for VS Code is maintained [in -tree](https://github.com/rust-lang/rust-analyzer/tree/master/editors/code). - -You can install the latest release of the plugin from [the -marketplace](https://marketplace.visualstudio.com/items?itemName=rust-lang.rust-analyzer). - -Note that the plugin may cause conflicts with the [previous official -Rust -plugin](https://marketplace.visualstudio.com/items?itemName=rust-lang.rust). -The latter is no longer maintained and should be uninstalled. - -The server binary is stored in the extension install directory, which -starts with `rust-lang.rust-analyzer-` and is located under: - -- Linux: `~/.vscode/extensions` - -- Linux (Remote, such as WSL): `~/.vscode-server/extensions` - -- macOS: `~/.vscode/extensions` - -- Windows: `%USERPROFILE%\.vscode\extensions` - -As an exception, on NixOS, the extension makes a copy of the server and -stores it under -`~/.config/Code/User/globalStorage/rust-lang.rust-analyzer`. - -Note that we only support the two most recent versions of VS Code. - -### Updates - -The extension will be updated automatically as new versions become -available. It will ask your permission to download the matching language -server version binary if needed. - -#### Nightly - -We ship nightly releases for VS Code. To help us out by testing the -newest code, you can enable pre-release versions in the Code extension -page. - -### Manual installation - -Alternatively, download a VSIX corresponding to your platform from the -[releases](https://github.com/rust-lang/rust-analyzer/releases) page. - -Install the extension with the `Extensions: Install from VSIX` command -within VS Code, or from the command line via: - - $ code --install-extension /path/to/rust-analyzer.vsix - -If you are running an unsupported platform, you can install -`rust-analyzer-no-server.vsix` and compile or obtain a server binary. -Copy the server anywhere, then add the path to your settings.json, for -example: - - { "rust-analyzer.server.path": "~/.local/bin/rust-analyzer-linux" } - -### Building From Source - -Both the server and the Code plugin can be installed from source: - - $ git clone https://github.com/rust-lang/rust-analyzer.git && cd rust-analyzer - $ cargo xtask install - -You’ll need Cargo, nodejs (matching a supported version of VS Code) and -npm for this. - -Note that installing via `xtask install` does not work for VS Code -Remote, instead you’ll need to install the `.vsix` manually. - -If you’re not using Code, you can compile and install only the LSP -server: - - $ cargo xtask install --server - -Make sure that `.cargo/bin` is in `$PATH` and precedes paths where -`rust-analyzer` may also be installed. Specifically, `rustup` includes a -proxy called `rust-analyzer`, which can cause problems if you’re -planning to use a source build or even a downloaded binary. - -## rust-analyzer Language Server Binary - -Other editors generally require the `rust-analyzer` binary to be in -`$PATH`. You can download pre-built binaries from the -[releases](https://github.com/rust-lang/rust-analyzer/releases) page. -You will need to uncompress and rename the binary for your platform, -e.g. from `rust-analyzer-aarch64-apple-darwin.gz` on Mac OS to -`rust-analyzer`, make it executable, then move it into a directory in -your `$PATH`. - -On Linux to install the `rust-analyzer` binary into `~/.local/bin`, -these commands should work: - - $ mkdir -p ~/.local/bin - $ curl -L https://github.com/rust-lang/rust-analyzer/releases/latest/download/rust-analyzer-x86_64-unknown-linux-gnu.gz | gunzip -c - > ~/.local/bin/rust-analyzer - $ chmod +x ~/.local/bin/rust-analyzer - -Make sure that `~/.local/bin` is listed in the `$PATH` variable and use -the appropriate URL if you’re not on a `x86-64` system. - -You don’t have to use `~/.local/bin`, any other path like `~/.cargo/bin` -or `/usr/local/bin` will work just as well. - -Alternatively, you can install it from source using the command below. -You’ll need the latest stable version of the Rust toolchain. - - $ git clone https://github.com/rust-lang/rust-analyzer.git && cd rust-analyzer - $ cargo xtask install --server - -If your editor can’t find the binary even though the binary is on your -`$PATH`, the likely explanation is that it doesn’t see the same `$PATH` -as the shell, see [this -issue](https://github.com/rust-lang/rust-analyzer/issues/1811). On Unix, -running the editor from a shell or changing the `.desktop` file to set -the environment should help. - -### rustup - -`rust-analyzer` is available in `rustup`: - - $ rustup component add rust-analyzer - -### Arch Linux - -The `rust-analyzer` binary can be installed from the repos or AUR (Arch -User Repository): - -- [`rust-analyzer`](https://www.archlinux.org/packages/extra/x86_64/rust-analyzer/) - (built from latest tagged source) - -- [`rust-analyzer-git`](https://aur.archlinux.org/packages/rust-analyzer-git) - (latest Git version) - -Install it with pacman, for example: - - $ pacman -S rust-analyzer - -### Gentoo Linux - -`rust-analyzer` is installed when the `rust-analyzer` use flag is set for dev-lang/rust or dev-lang/rust-bin. You also need to set the `rust-src` use flag. - -### macOS - -The `rust-analyzer` binary can be installed via -[Homebrew](https://brew.sh/). - - $ brew install rust-analyzer - -### Windows - -It is recommended to install the latest Microsoft Visual C++ Redistributable prior to installation. -Download links can be found -[here](https://learn.microsoft.com/en-us/cpp/windows/latest-supported-vc-redist). - -## VS Code or VSCodium in Flatpak - -Setting up `rust-analyzer` with a Flatpak version of Code is not trivial -because of the Flatpak sandbox. While the sandbox can be disabled for -some directories, `/usr/bin` will always be mounted under -`/run/host/usr/bin`. This prevents access to the system’s C compiler, a -system-wide installation of Rust, or any other libraries you might want -to link to. Some compilers and libraries can be acquired as Flatpak -SDKs, such as `org.freedesktop.Sdk.Extension.rust-stable` or -`org.freedesktop.Sdk.Extension.llvm15`. - -If you use a Flatpak SDK for Rust, it must be in your `PATH`: - - * install the SDK extensions with `flatpak install org.freedesktop.Sdk.Extension.{llvm15,rust-stable}//23.08` - * enable SDK extensions in the editor with the environment variable `FLATPAK_ENABLE_SDK_EXT=llvm15,rust-stable` (this can be done using flatseal or `flatpak override`) - -If you want to use Flatpak in combination with `rustup`, the following -steps might help: - -- both Rust and `rustup` have to be installed using - . Distro packages *will not* work. - -- you need to launch Code, open a terminal and run `echo $PATH` - -- using - [Flatseal](https://flathub.org/apps/details/com.github.tchx84.Flatseal), - you must add an environment variable called `PATH`. Set its value to - the output from above, appending `:~/.cargo/bin`, where `~` is the - path to your home directory. You must replace `~`, as it won’t be - expanded otherwise. - -- while Flatseal is open, you must enable access to "All user files" - -A C compiler should already be available via `org.freedesktop.Sdk`. Any -other tools or libraries you will need to acquire from Flatpak. - -## Emacs - -Prerequisites: You have installed the [`rust-analyzer` -binary](#rust-analyzer-language-server-binary). - -To use `rust-analyzer`, you need to install and enable one of the two -popular LSP client implementations for Emacs, -[Eglot](https://github.com/joaotavora/eglot) or [LSP -Mode](https://github.com/emacs-lsp/lsp-mode). Both enable -`rust-analyzer` by default in rust buffers if it is available. - -### Eglot - -Eglot is the more minimalistic and lightweight LSP client for Emacs, -integrates well with existing Emacs functionality and is built into -Emacs starting from release 29. - -After installing Eglot, e.g. via `M-x package-install` (not needed from -Emacs 29), you can enable it via the `M-x eglot` command or load it -automatically in `rust-mode` via - - (add-hook 'rust-mode-hook 'eglot-ensure) - -To enable clippy, you will need to configure the initialization options -to pass the `check.command` setting. - - (add-to-list 'eglot-server-programs - '((rust-ts-mode rust-mode) . - ("rust-analyzer" :initializationOptions (:check (:command "clippy"))))) - -For more detailed instructions and options see the [Eglot -manual](https://joaotavora.github.io/eglot) (also available from Emacs -via `M-x info`) and the [Eglot -readme](https://github.com/joaotavora/eglot/blob/master/README.md). - -Eglot does not support the rust-analyzer extensions to the -language-server protocol and does not aim to do so in the future. The -[eglot-x](https://github.com/nemethf/eglot-x#rust-analyzer-extensions) -package adds experimental support for those LSP extensions. - -### LSP Mode - -LSP-mode is the original LSP-client for emacs. Compared to Eglot it has -a larger codebase and supports more features, like LSP protocol -extensions. With extension packages like [LSP -UI](https://github.com/emacs-lsp/lsp-mode) it offers a lot of visual -eyecandy. Further it integrates well with [DAP -mode](https://github.com/emacs-lsp/dap-mode) for support of the Debug -Adapter Protocol. - -You can install LSP-mode via `M-x package-install` and then run it via -the `M-x lsp` command or load it automatically in rust buffers with - - (add-hook 'rust-mode-hook 'lsp-deferred) - -For more information on how to set up LSP mode and its extension package -see the instructions in the [LSP mode -manual](https://emacs-lsp.github.io/lsp-mode/page/installation). Also -see the [rust-analyzer -section](https://emacs-lsp.github.io/lsp-mode/page/lsp-rust-analyzer/) -for `rust-analyzer` specific options and commands, which you can -optionally bind to keys. - -Note the excellent -[guide](https://robert.kra.hn/posts/2021-02-07_rust-with-emacs/) from -[@rksm](https://github.com/rksm) on how to set-up Emacs for Rust -development with LSP mode and several other packages. - -## Vim/Neovim - -Prerequisites: You have installed the [`rust-analyzer` -binary](#rust-analyzer-language-server-binary). Not needed if the -extension can install/update it on its own, coc-rust-analyzer is one -example. - -There are several LSP client implementations for Vim or Neovim: - -### coc-rust-analyzer - -1. Install coc.nvim by following the instructions at - [coc.nvim](https://github.com/neoclide/coc.nvim) (Node.js required) - -2. Run `:CocInstall coc-rust-analyzer` to install - [coc-rust-analyzer](https://github.com/fannheyward/coc-rust-analyzer), - this extension implements *most* of the features supported in the - VSCode extension: - - - automatically install and upgrade stable/nightly releases - - - same configurations as VSCode extension, - `rust-analyzer.server.path`, `rust-analyzer.cargo.features` etc. - - - same commands too, `rust-analyzer.analyzerStatus`, - `rust-analyzer.ssr` etc. - - - inlay hints for variables and method chaining, *Neovim Only* - -Note: for code actions, use `coc-codeaction-cursor` and -`coc-codeaction-selected`; `coc-codeaction` and `coc-codeaction-line` -are unlikely to be useful. - -### LanguageClient-neovim - -1. Install LanguageClient-neovim by following the instructions - [here](https://github.com/autozimu/LanguageClient-neovim) - - - The GitHub project wiki has extra tips on configuration - -2. Configure by adding this to your Vim/Neovim config file (replacing - the existing Rust-specific line if it exists): - - let g:LanguageClient_serverCommands = { - \ 'rust': ['rust-analyzer'], - \ } - -### YouCompleteMe - -Install YouCompleteMe by following the instructions -[here](https://github.com/ycm-core/YouCompleteMe#installation). - -rust-analyzer is the default in ycm, it should work out of the box. - -### ALE - -To use the LSP server in [ale](https://github.com/dense-analysis/ale): - - let g:ale_linters = {'rust': ['analyzer']} - -### nvim-lsp - -Neovim 0.5 has built-in language server support. For a quick start -configuration of rust-analyzer, use -[neovim/nvim-lspconfig](https://github.com/neovim/nvim-lspconfig#rust_analyzer). -Once `neovim/nvim-lspconfig` is installed, use -`lua require'lspconfig'.rust_analyzer.setup({})` in your `init.vim`. - -You can also pass LSP settings to the server: - - lua << EOF - local lspconfig = require'lspconfig' - - local on_attach = function(client) - require'completion'.on_attach(client) - end - - lspconfig.rust_analyzer.setup({ - on_attach = on_attach, - settings = { - ["rust-analyzer"] = { - imports = { - granularity = { - group = "module", - }, - prefix = "self", - }, - cargo = { - buildScripts = { - enable = true, - }, - }, - procMacro = { - enable = true - }, - } - } - }) - EOF - -If you're running Neovim 0.10 or later, you can enable inlay hints via `on_attach`: - -```vim -lspconfig.rust_analyzer.setup({ - on_attach = function(client, bufnr) - vim.lsp.inlay_hint.enable(true, { bufnr = bufnr }) - end -}) +```json +{ "rust-analyzer.server.extraEnv": { "RUSTUP_TOOLCHAIN": "stable" } } ``` -Note that the hints are only visible after `rust-analyzer` has finished loading **and** you have to -edit the file to trigger a re-render. - -See for more tips on -getting started. - -Check out for a batteries -included rust-analyzer setup for Neovim. - -### vim-lsp - -vim-lsp is installed by following [the plugin -instructions](https://github.com/prabirshrestha/vim-lsp). It can be as -simple as adding this line to your `.vimrc`: - - Plug 'prabirshrestha/vim-lsp' - -Next you need to register the `rust-analyzer` binary. If it is avim.lspvailable -in `$PATH`, you may want to add this to your `.vimrc`: - - if executable('rust-analyzer') - au User lsp_setup call lsp#register_server({ - \ 'name': 'Rust Language Server', - \ 'cmd': {server_info->['rust-analyzer']}, - \ 'whitelist': ['rust'], - \ }) - endif - -There is no dedicated UI for the server configuration, so you would need -to send any options as a value of the `initialization_options` field, as -described in the [Configuration](#configuration) section. Here is an -example of how to enable the proc-macro support: - - if executable('rust-analyzer') - au User lsp_setup call lsp#register_server({ - \ 'name': 'Rust Language Server', - \ 'cmd': {server_info->['rust-analyzer']}, - \ 'whitelist': ['rust'], - \ 'initialization_options': { - \ 'cargo': { - \ 'buildScripts': { - \ 'enable': v:true, - \ }, - \ }, - \ 'procMacro': { - \ 'enable': v:true, - \ }, - \ }, - \ }) - endif - -## Sublime Text - -### Sublime Text 4: - -- Follow the instructions in - [LSP-rust-analyzer](https://github.com/sublimelsp/LSP-rust-analyzer). - -Install -[LSP-file-watcher-chokidar](https://packagecontrol.io/packages/LSP-file-watcher-chokidar) -to enable file watching (`workspace/didChangeWatchedFiles`). - -### Sublime Text 3: - -- Install the [`rust-analyzer` - binary](#rust-analyzer-language-server-binary). - -- Install the [LSP package](https://packagecontrol.io/packages/LSP). - -- From the command palette, run `LSP: Enable Language Server Globally` - and select `rust-analyzer`. - -If it worked, you should see "rust-analyzer, Line X, Column Y" on the -left side of the status bar, and after waiting a bit, functionalities -like tooltips on hovering over variables should become available. - -If you get an error saying `No such file or directory: 'rust-analyzer'`, -see the [`rust-analyzer` binary](#rust-analyzer-language-server-binary) -section on installing the language server binary. - -## GNOME Builder - -GNOME Builder 3.37.1 and newer has native `rust-analyzer` support. If -the LSP binary is not available, GNOME Builder can install it when -opening a Rust file. - -## Eclipse IDE - -Support for Rust development in the Eclipse IDE is provided by [Eclipse -Corrosion](https://github.com/eclipse/corrosion). If available in PATH -or in some standard location, `rust-analyzer` is detected and powers -editing of Rust files without further configuration. If `rust-analyzer` -is not detected, Corrosion will prompt you for configuration of your -Rust toolchain and language server with a link to the *Window > -Preferences > Rust* preference page; from here a button allows to -download and configure `rust-analyzer`, but you can also reference -another installation. You’ll need to close and reopen all .rs and Cargo -files, or to restart the IDE, for this change to take effect. - -## Kate Text Editor - -Support for the language server protocol is built into Kate through the -LSP plugin, which is included by default. It is preconfigured to use -rust-analyzer for Rust sources since Kate 21.12. - -To change rust-analyzer config options, start from the following example -and put it into Kate’s "User Server Settings" tab (located under the LSP -Client settings): - - { - "servers": { - "rust": { - "initializationOptions": { - "cachePriming": { - "enable": false - }, - "check": { - "allTargets": false - }, - "checkOnSave": false - } - } - } - } - -Then click on apply, and restart the LSP server for your rust project. - -## juCi++ - -[juCi++](https://gitlab.com/cppit/jucipp) has built-in support for the -language server protocol, and since version 1.7.0 offers installation of -both Rust and rust-analyzer when opening a Rust file. - -## Kakoune - -[Kakoune](https://kakoune.org/) supports LSP with the help of -[`kak-lsp`](https://github.com/kak-lsp/kak-lsp). Follow the -[instructions](https://github.com/kak-lsp/kak-lsp#installation) to -install `kak-lsp`. To configure `kak-lsp`, refer to the [configuration -section](https://github.com/kak-lsp/kak-lsp#configuring-kak-lsp) which -is basically about copying the [configuration -file](https://github.com/kak-lsp/kak-lsp/blob/master/kak-lsp.toml) in -the right place (latest versions should use `rust-analyzer` by default). - -Finally, you need to configure Kakoune to talk to `kak-lsp` (see [Usage -section](https://github.com/kak-lsp/kak-lsp#usage)). A basic -configuration will only get you LSP but you can also activate inlay -diagnostics and auto-formatting on save. The following might help you -get all of this. - - eval %sh{kak-lsp --kakoune -s $kak_session} # Not needed if you load it with plug.kak. - hook global WinSetOption filetype=rust %{ - # Enable LSP - lsp-enable-window - - # Auto-formatting on save - hook window BufWritePre .* lsp-formatting-sync - - # Configure inlay hints (only on save) - hook window -group rust-inlay-hints BufWritePost .* rust-analyzer-inlay-hints - hook -once -always window WinSetOption filetype=.* %{ - remove-hooks window rust-inlay-hints - } - } - -## Helix - -[Helix](https://docs.helix-editor.com/) supports LSP by default. -However, it won’t install `rust-analyzer` automatically. You can follow -instructions for installing [`rust-analyzer` -binary](#rust-analyzer-language-server-binary). - -## Visual Studio 2022 - -There are multiple rust-analyzer extensions for Visual Studio 2022 on -Windows: - -### rust-analyzer.vs - -(License: Creative Commons Attribution-NonCommercial-ShareAlike 4.0 -International) - -[Visual Studio -Marketplace](https://marketplace.visualstudio.com/items?itemName=kitamstudios.RustAnalyzer) - -[GitHub](https://github.com/kitamstudios/rust-analyzer/) - -Support for Rust development in the Visual Studio IDE is enabled by the -[rust-analyzer](https://marketplace.visualstudio.com/items?itemName=kitamstudios.RustAnalyzer) -package. Either click on the download link or install from IDE’s -extension manager. For now [Visual Studio -2022](https://visualstudio.microsoft.com/downloads/) is required. All -editions are supported viz. Community, Professional & Enterprise. The -package aims to provide 0-friction installation and therefore comes -loaded with most things required including rust-analyzer binary. If -anything it needs is missing, appropriate errors / warnings will guide -the user. E.g. cargo.exe needs to be in path and the package will tell -you as much. This package is under rapid active development. So if you -encounter any issues please file it at -[rust-analyzer.vs](https://github.com/kitamstudios/rust-analyzer/). - -### VS\_RustAnalyzer - -(License: GPL) - -[Visual Studio -Marketplace](https://marketplace.visualstudio.com/items?itemName=cchharris.vsrustanalyzer) - -[GitHub](https://github.com/cchharris/VS-RustAnalyzer) - -### SourceGear Rust - -(License: closed source) - -[Visual Studio -Marketplace](https://marketplace.visualstudio.com/items?itemName=SourceGear.SourceGearRust) - -[GitHub (docs, issues, -discussions)](https://github.com/sourcegear/rust-vs-extension) - -- Free (no-cost) - -- Supports all editions of Visual Studio 2022 on Windows: Community, - Professional, or Enterprise - -## Lapce - -[Lapce](https://lapce.dev/) has a Rust plugin which you can install -directly. Unfortunately, it downloads an old version of `rust-analyzer`, -but you can set the server path under Settings. - ## Crates There is a package named `ra_ap_rust_analyzer` available on -[crates.io](https://crates.io/crates/ra_ap_rust-analyzer), for someone -who wants to use it programmatically. +[crates.io](https://crates.io/crates/ra_ap_rust-analyzer), for people +who want to use rust-analyzer programmatically. For more details, see [the publish workflow](https://github.com/rust-lang/rust-analyzer/blob/master/.github/workflows/autopublish.yaml). -## Zed - -[Zed](https://zed.dev) has native `rust-analyzer` support. If the LSP -binary is not available, Zed can install it when opening a Rust file. diff --git a/src/tools/rust-analyzer/docs/book/src/other_editors.md b/src/tools/rust-analyzer/docs/book/src/other_editors.md new file mode 100644 index 0000000000000..0a9a453e0137a --- /dev/null +++ b/src/tools/rust-analyzer/docs/book/src/other_editors.md @@ -0,0 +1,423 @@ +# Other Editors + +rust-analyzer works with any editor that supports the [Language Server +Protocol](https://microsoft.github.io/language-server-protocol/). + +This page assumes that you have already [installed the rust-analyzer +binary](./rust_analyzer_binary.html). + +## Emacs + +To use `rust-analyzer`, you need to install and enable one of the two +popular LSP client implementations for Emacs, +[Eglot](https://github.com/joaotavora/eglot) or [LSP +Mode](https://github.com/emacs-lsp/lsp-mode). Both enable +`rust-analyzer` by default in Rust buffers if it is available. + +### Eglot + +Eglot is the more minimalistic and lightweight LSP client for Emacs, +integrates well with existing Emacs functionality and is built into +Emacs starting from release 29. + +After installing Eglot, e.g. via `M-x package-install` (not needed from +Emacs 29), you can enable it via the `M-x eglot` command or load it +automatically in `rust-mode` via + +``` +(add-hook 'rust-mode-hook 'eglot-ensure) +``` + +To enable clippy, you will need to configure the initialization options +to pass the `check.command` setting. + +``` +(add-to-list 'eglot-server-programs + '((rust-ts-mode rust-mode) . + ("rust-analyzer" :initializationOptions (:check (:command "clippy"))))) +``` + +For more detailed instructions and options see the [Eglot +manual](https://joaotavora.github.io/eglot) (also available from Emacs +via `M-x info`) and the [Eglot +readme](https://github.com/joaotavora/eglot/blob/master/README.md). + +Eglot does not support the rust-analyzer extensions to the +language-server protocol and does not aim to do so in the future. The +[eglot-x](https://github.com/nemethf/eglot-x#rust-analyzer-extensions) +package adds experimental support for those LSP extensions. + +### LSP Mode + +LSP-mode is the original LSP-client for emacs. Compared to Eglot it has +a larger codebase and supports more features, like LSP protocol +extensions. With extension packages like [LSP +UI](https://github.com/emacs-lsp/lsp-mode) it offers a lot of visual +eyecandy. Further it integrates well with [DAP +mode](https://github.com/emacs-lsp/dap-mode) for support of the Debug +Adapter Protocol. + +You can install LSP-mode via `M-x package-install` and then run it via +the `M-x lsp` command or load it automatically in rust buffers with + +``` +(add-hook 'rust-mode-hook 'lsp-deferred) +``` + +For more information on how to set up LSP mode and its extension package +see the instructions in the [LSP mode +manual](https://emacs-lsp.github.io/lsp-mode/page/installation). Also +see the [rust-analyzer +section](https://emacs-lsp.github.io/lsp-mode/page/lsp-rust-analyzer/) +for `rust-analyzer` specific options and commands, which you can +optionally bind to keys. + +Note the excellent +[guide](https://robert.kra.hn/posts/2021-02-07_rust-with-emacs/) from +[@rksm](https://github.com/rksm) on how to set-up Emacs for Rust +development with LSP mode and several other packages. + +## Vim/Neovim + +There are several LSP client implementations for Vim or Neovim: + +### coc-rust-analyzer + +1. Install coc.nvim by following the instructions at + [coc.nvim](https://github.com/neoclide/coc.nvim) (Node.js required) + +2. Run `:CocInstall coc-rust-analyzer` to install + [coc-rust-analyzer](https://github.com/fannheyward/coc-rust-analyzer), + this extension implements *most* of the features supported in the + VSCode extension: + + - automatically install and upgrade stable/nightly releases + + - same configurations as VSCode extension, + `rust-analyzer.server.path`, `rust-analyzer.cargo.features` etc. + + - same commands too, `rust-analyzer.analyzerStatus`, + `rust-analyzer.ssr` etc. + + - inlay hints for variables and method chaining, *Neovim Only* + +Note: coc-rust-analyzer is capable of installing or updating the +rust-analyzer binary on its own. + +Note: for code actions, use `coc-codeaction-cursor` and +`coc-codeaction-selected`; `coc-codeaction` and `coc-codeaction-line` +are unlikely to be useful. + +### LanguageClient-neovim + +1. Install LanguageClient-neovim by following the instructions + [here](https://github.com/autozimu/LanguageClient-neovim) + + - The GitHub project wiki has extra tips on configuration + +2. Configure by adding this to your Vim/Neovim config file (replacing + the existing Rust-specific line if it exists): + + let g:LanguageClient_serverCommands = { + \ 'rust': ['rust-analyzer'], + \ } + +### YouCompleteMe + +Install YouCompleteMe by following the instructions +[here](https://github.com/ycm-core/YouCompleteMe#installation). + +rust-analyzer is the default in ycm, it should work out of the box. + +### ALE + +To use the LSP server in [ale](https://github.com/dense-analysis/ale): + + let g:ale_linters = {'rust': ['analyzer']} + +### nvim-lsp + +Neovim 0.5 has built-in language server support. For a quick start +configuration of rust-analyzer, use +[neovim/nvim-lspconfig](https://github.com/neovim/nvim-lspconfig#rust_analyzer). +Once `neovim/nvim-lspconfig` is installed, use +`lua require'lspconfig'.rust_analyzer.setup({})` in your `init.vim`. + +You can also pass LSP settings to the server: + +```lua +lua << EOF +local lspconfig = require'lspconfig' + +local on_attach = function(client) + require'completion'.on_attach(client) +end + +lspconfig.rust_analyzer.setup({ + on_attach = on_attach, + settings = { + ["rust-analyzer"] = { + imports = { + granularity = { + group = "module", + }, + prefix = "self", + }, + cargo = { + buildScripts = { + enable = true, + }, + }, + procMacro = { + enable = true + }, + } + } +}) +EOF +``` + +If you're running Neovim 0.10 or later, you can enable inlay hints via `on_attach`: + +```lua +lspconfig.rust_analyzer.setup({ + on_attach = function(client, bufnr) + vim.lsp.inlay_hint.enable(true, { bufnr = bufnr }) + end +}) +``` + +Note that the hints are only visible after `rust-analyzer` has finished loading **and** you have to +edit the file to trigger a re-render. + +See for more tips on +getting started. + +Check out for a batteries +included rust-analyzer setup for Neovim. + +### vim-lsp + +vim-lsp is installed by following [the plugin +instructions](https://github.com/prabirshrestha/vim-lsp). It can be as +simple as adding this line to your `.vimrc`: + + Plug 'prabirshrestha/vim-lsp' + +Next you need to register the `rust-analyzer` binary. If it is avim.lspvailable +in `$PATH`, you may want to add this to your `.vimrc`: + + if executable('rust-analyzer') + au User lsp_setup call lsp#register_server({ + \ 'name': 'Rust Language Server', + \ 'cmd': {server_info->['rust-analyzer']}, + \ 'whitelist': ['rust'], + \ }) + endif + +There is no dedicated UI for the server configuration, so you would need +to send any options as a value of the `initialization_options` field, as +described in the [Configuration](#configuration) section. Here is an +example of how to enable the proc-macro support: + + if executable('rust-analyzer') + au User lsp_setup call lsp#register_server({ + \ 'name': 'Rust Language Server', + \ 'cmd': {server_info->['rust-analyzer']}, + \ 'whitelist': ['rust'], + \ 'initialization_options': { + \ 'cargo': { + \ 'buildScripts': { + \ 'enable': v:true, + \ }, + \ }, + \ 'procMacro': { + \ 'enable': v:true, + \ }, + \ }, + \ }) + endif + +## Sublime Text + +### Sublime Text 4: + +- Follow the instructions in + [LSP-rust-analyzer](https://github.com/sublimelsp/LSP-rust-analyzer). + +Install +[LSP-file-watcher-chokidar](https://packagecontrol.io/packages/LSP-file-watcher-chokidar) +to enable file watching (`workspace/didChangeWatchedFiles`). + +### Sublime Text 3: + +- Install the [LSP package](https://packagecontrol.io/packages/LSP). + +- From the command palette, run `LSP: Enable Language Server Globally` + and select `rust-analyzer`. + +If it worked, you should see "rust-analyzer, Line X, Column Y" on the +left side of the status bar, and after waiting a bit, functionalities +like tooltips on hovering over variables should become available. + +If you get an error saying `No such file or directory: 'rust-analyzer'`, +see the [rust-analyzer binary installation](./rust_analyzer_binary.html) section. + +## GNOME Builder + +GNOME Builder 3.37.1 and newer has native `rust-analyzer` support. If +the LSP binary is not available, GNOME Builder can install it when +opening a Rust file. + +## Eclipse IDE + +Support for Rust development in the Eclipse IDE is provided by [Eclipse +Corrosion](https://github.com/eclipse/corrosion). If available in PATH +or in some standard location, `rust-analyzer` is detected and powers +editing of Rust files without further configuration. If `rust-analyzer` +is not detected, Corrosion will prompt you for configuration of your +Rust toolchain and language server with a link to the *Window > +Preferences > Rust* preference page; from here a button allows to +download and configure `rust-analyzer`, but you can also reference +another installation. You’ll need to close and reopen all .rs and Cargo +files, or to restart the IDE, for this change to take effect. + +## Kate Text Editor + +Support for the language server protocol is built into Kate through the +LSP plugin, which is included by default. It is preconfigured to use +rust-analyzer for Rust sources since Kate 21.12. + +To change rust-analyzer config options, start from the following example +and put it into Kate’s "User Server Settings" tab (located under the LSP +Client settings): + +```json +{ + "servers": { + "rust": { + "initializationOptions": { + "cachePriming": { + "enable": false + }, + "check": { + "allTargets": false + }, + "checkOnSave": false + } + } + } +} +``` + +Then click on apply, and restart the LSP server for your rust project. + +## juCi++ + +[juCi++](https://gitlab.com/cppit/jucipp) has built-in support for the +language server protocol, and since version 1.7.0 offers installation of +both Rust and rust-analyzer when opening a Rust file. + +## Kakoune + +[Kakoune](https://kakoune.org/) supports LSP with the help of +[`kak-lsp`](https://github.com/kak-lsp/kak-lsp). Follow the +[instructions](https://github.com/kak-lsp/kak-lsp#installation) to +install `kak-lsp`. To configure `kak-lsp`, refer to the [configuration +section](https://github.com/kak-lsp/kak-lsp#configuring-kak-lsp) which +is basically about copying the [configuration +file](https://github.com/kak-lsp/kak-lsp/blob/master/kak-lsp.toml) in +the right place (latest versions should use `rust-analyzer` by default). + +Finally, you need to configure Kakoune to talk to `kak-lsp` (see [Usage +section](https://github.com/kak-lsp/kak-lsp#usage)). A basic +configuration will only get you LSP but you can also activate inlay +diagnostics and auto-formatting on save. The following might help you +get all of this. + + eval %sh{kak-lsp --kakoune -s $kak_session} # Not needed if you load it with plug.kak. + hook global WinSetOption filetype=rust %{ + # Enable LSP + lsp-enable-window + + # Auto-formatting on save + hook window BufWritePre .* lsp-formatting-sync + + # Configure inlay hints (only on save) + hook window -group rust-inlay-hints BufWritePost .* rust-analyzer-inlay-hints + hook -once -always window WinSetOption filetype=.* %{ + remove-hooks window rust-inlay-hints + } + } + +## Helix + +[Helix](https://docs.helix-editor.com/) supports LSP by default. +However, it won’t install `rust-analyzer` automatically. You can follow +instructions for [installing the rust-analyzer +binary](./rust_analyzer_binary.html). + +## Visual Studio 2022 + +There are multiple rust-analyzer extensions for Visual Studio 2022 on +Windows: + +### rust-analyzer.vs + +(License: Creative Commons Attribution-NonCommercial-ShareAlike 4.0 +International) + +[Visual Studio +Marketplace](https://marketplace.visualstudio.com/items?itemName=kitamstudios.RustAnalyzer) + +[GitHub](https://github.com/kitamstudios/rust-analyzer/) + +Support for Rust development in the Visual Studio IDE is enabled by the +[rust-analyzer](https://marketplace.visualstudio.com/items?itemName=kitamstudios.RustAnalyzer) +package. Either click on the download link or install from IDE’s +extension manager. For now [Visual Studio +2022](https://visualstudio.microsoft.com/downloads/) is required. All +editions are supported viz. Community, Professional & Enterprise. The +package aims to provide 0-friction installation and therefore comes +loaded with most things required including rust-analyzer binary. If +anything it needs is missing, appropriate errors / warnings will guide +the user. E.g. cargo.exe needs to be in path and the package will tell +you as much. This package is under rapid active development. So if you +encounter any issues please file it at +[rust-analyzer.vs](https://github.com/kitamstudios/rust-analyzer/). + +### VS RustAnalyzer + +(License: GPL) + +[Visual Studio +Marketplace](https://marketplace.visualstudio.com/items?itemName=cchharris.vsrustanalyzer) + +[GitHub](https://github.com/cchharris/VS-RustAnalyzer) + +### SourceGear Rust + +(License: closed source) + +[Visual Studio +Marketplace](https://marketplace.visualstudio.com/items?itemName=SourceGear.SourceGearRust) + +[GitHub (docs, issues, +discussions)](https://github.com/sourcegear/rust-vs-extension) + +- Free (no-cost) + +- Supports all editions of Visual Studio 2022 on Windows: Community, + Professional, or Enterprise + +## Lapce + +[Lapce](https://lapce.dev/) has a Rust plugin which you can install +directly. Unfortunately, it downloads an old version of `rust-analyzer`, +but you can set the server path under Settings. + +## Zed + +[Zed](https://zed.dev) has native `rust-analyzer` support. If the +rust-analyzer binary is not available, Zed can install it when opening +a Rust file. diff --git a/src/tools/rust-analyzer/docs/book/src/rust_analyzer_binary.md b/src/tools/rust-analyzer/docs/book/src/rust_analyzer_binary.md new file mode 100644 index 0000000000000..c7ac3087ced74 --- /dev/null +++ b/src/tools/rust-analyzer/docs/book/src/rust_analyzer_binary.md @@ -0,0 +1,74 @@ +# rust-analyzer Binary + +Text editors require the `rust-analyzer` binary to be in +`$PATH`. You can download pre-built binaries from the +[releases](https://github.com/rust-lang/rust-analyzer/releases) page. +You will need to uncompress and rename the binary for your platform, +e.g. from `rust-analyzer-aarch64-apple-darwin.gz` on Mac OS to +`rust-analyzer`, make it executable, then move it into a directory in +your `$PATH`. + +On Linux to install the `rust-analyzer` binary into `~/.local/bin`, +these commands should work: + + $ mkdir -p ~/.local/bin + $ curl -L https://github.com/rust-lang/rust-analyzer/releases/latest/download/rust-analyzer-x86_64-unknown-linux-gnu.gz | gunzip -c - > ~/.local/bin/rust-analyzer + $ chmod +x ~/.local/bin/rust-analyzer + +Make sure that `~/.local/bin` is listed in the `$PATH` variable and use +the appropriate URL if you’re not on a `x86-64` system. + +You don’t have to use `~/.local/bin`, any other path like `~/.cargo/bin` +or `/usr/local/bin` will work just as well. + +Alternatively, you can install it from source using the command below. +You’ll need the latest stable version of the Rust toolchain. + + $ git clone https://github.com/rust-lang/rust-analyzer.git && cd rust-analyzer + $ cargo xtask install --server + +If your editor can’t find the binary even though the binary is on your +`$PATH`, the likely explanation is that it doesn’t see the same `$PATH` +as the shell, see [this +issue](https://github.com/rust-lang/rust-analyzer/issues/1811). On Unix, +running the editor from a shell or changing the `.desktop` file to set +the environment should help. + +### rustup + +`rust-analyzer` is available in `rustup`: + + $ rustup component add rust-analyzer + +### Arch Linux + +The `rust-analyzer` binary can be installed from the repos or AUR (Arch +User Repository): + +- [`rust-analyzer`](https://www.archlinux.org/packages/extra/x86_64/rust-analyzer/) + (built from latest tagged source) + +- [`rust-analyzer-git`](https://aur.archlinux.org/packages/rust-analyzer-git) + (latest Git version) + +Install it with pacman, for example: + + $ pacman -S rust-analyzer + +### Gentoo Linux + +`rust-analyzer` is installed when the `rust-analyzer` use flag is set for dev-lang/rust or dev-lang/rust-bin. You also need to set the `rust-src` use flag. + +### macOS + +The `rust-analyzer` binary can be installed via +[Homebrew](https://brew.sh/). + + $ brew install rust-analyzer + +### Windows + +It is recommended to install the latest Microsoft Visual C++ Redistributable prior to installation. +Download links can be found +[here](https://learn.microsoft.com/en-us/cpp/windows/latest-supported-vc-redist). + diff --git a/src/tools/rust-analyzer/docs/book/src/vs_code.md b/src/tools/rust-analyzer/docs/book/src/vs_code.md new file mode 100644 index 0000000000000..233b862d2c6b7 --- /dev/null +++ b/src/tools/rust-analyzer/docs/book/src/vs_code.md @@ -0,0 +1,121 @@ +# VS Code + +This is the best supported editor at the moment. The rust-analyzer +plugin for VS Code is maintained [in +tree](https://github.com/rust-lang/rust-analyzer/tree/master/editors/code). + +You can install the latest release of the plugin from [the +marketplace](https://marketplace.visualstudio.com/items?itemName=rust-lang.rust-analyzer). + +Note that the plugin may cause conflicts with the [previous official +Rust +plugin](https://marketplace.visualstudio.com/items?itemName=rust-lang.rust). +The latter is no longer maintained and should be uninstalled. + +The server binary is stored in the extension install directory, which +starts with `rust-lang.rust-analyzer-` and is located under: + +- Linux: `~/.vscode/extensions` + +- Linux (Remote, such as WSL): `~/.vscode-server/extensions` + +- macOS: `~/.vscode/extensions` + +- Windows: `%USERPROFILE%\.vscode\extensions` + +As an exception, on NixOS, the extension makes a copy of the server and +stores it under +`~/.config/Code/User/globalStorage/rust-lang.rust-analyzer`. + +Note that we only support the two most recent versions of VS Code. + +### Updates + +The extension will be updated automatically as new versions become +available. It will ask your permission to download the matching language +server version binary if needed. + +#### Nightly + +We ship nightly releases for VS Code. To help us out by testing the +newest code, you can enable pre-release versions in the Code extension +page. + +### Manual installation + +Alternatively, download a VSIX corresponding to your platform from the +[releases](https://github.com/rust-lang/rust-analyzer/releases) page. + +Install the extension with the `Extensions: Install from VSIX` command +within VS Code, or from the command line via: + + $ code --install-extension /path/to/rust-analyzer.vsix + +If you are running an unsupported platform, you can install +`rust-analyzer-no-server.vsix` and compile or obtain a server binary. +Copy the server anywhere, then add the path to your settings.json, for +example: + +```json +{ "rust-analyzer.server.path": "~/.local/bin/rust-analyzer-linux" } +``` + +### Building From Source + +Both the server and the Code plugin can be installed from source: + + $ git clone https://github.com/rust-lang/rust-analyzer.git && cd rust-analyzer + $ cargo xtask install + +You’ll need Cargo, nodejs (matching a supported version of VS Code) and +npm for this. + +Note that installing via `xtask install` does not work for VS Code +Remote, instead you’ll need to install the `.vsix` manually. + +If you’re not using Code, you can compile and install only the LSP +server: + + $ cargo xtask install --server + +Make sure that `.cargo/bin` is in `$PATH` and precedes paths where +`rust-analyzer` may also be installed. Specifically, `rustup` includes a +proxy called `rust-analyzer`, which can cause problems if you’re +planning to use a source build or even a downloaded binary. + +## VS Code or VSCodium in Flatpak + +Setting up `rust-analyzer` with a Flatpak version of Code is not trivial +because of the Flatpak sandbox. While the sandbox can be disabled for +some directories, `/usr/bin` will always be mounted under +`/run/host/usr/bin`. This prevents access to the system’s C compiler, a +system-wide installation of Rust, or any other libraries you might want +to link to. Some compilers and libraries can be acquired as Flatpak +SDKs, such as `org.freedesktop.Sdk.Extension.rust-stable` or +`org.freedesktop.Sdk.Extension.llvm15`. + +If you use a Flatpak SDK for Rust, it must be in your `PATH`: + + * install the SDK extensions with `flatpak install org.freedesktop.Sdk.Extension.{llvm15,rust-stable}//23.08` + * enable SDK extensions in the editor with the environment variable `FLATPAK_ENABLE_SDK_EXT=llvm15,rust-stable` (this can be done using flatseal or `flatpak override`) + +If you want to use Flatpak in combination with `rustup`, the following +steps might help: + +- both Rust and `rustup` have to be installed using + . Distro packages *will not* work. + +- you need to launch Code, open a terminal and run `echo $PATH` + +- using + [Flatseal](https://flathub.org/apps/details/com.github.tchx84.Flatseal), + you must add an environment variable called `PATH`. Set its value to + the output from above, appending `:~/.cargo/bin`, where `~` is the + path to your home directory. You must replace `~`, as it won’t be + expanded otherwise. + +- while Flatseal is open, you must enable access to "All user files" + +A C compiler should already be available via `org.freedesktop.Sdk`. Any +other tools or libraries you will need to acquire from Flatpak. + From d72b2df1526b9a2c168ffc851cc805db3f4fd8df Mon Sep 17 00:00:00 2001 From: asuto15 Date: Thu, 13 Feb 2025 03:58:20 +0900 Subject: [PATCH 40/75] Add modifiers to highlighting for extern crate --- .../ide/src/syntax_highlighting/highlight.rs | 19 ++++++++++++++++++- .../test_data/highlight_doctest.html | 8 +++++++- .../ide/src/syntax_highlighting/tests.rs | 6 ++++++ 3 files changed, 31 insertions(+), 2 deletions(-) diff --git a/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/highlight.rs b/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/highlight.rs index c6e11b9cbdf72..d580b3001c3eb 100644 --- a/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/highlight.rs +++ b/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/highlight.rs @@ -703,7 +703,24 @@ fn highlight_name_ref_by_syntax( }; match parent.kind() { - EXTERN_CRATE => HlTag::Symbol(SymbolKind::Module).into(), + EXTERN_CRATE => { + let mut h: Highlight = HlTag::Symbol(SymbolKind::Module).into(); + let is_crate_root = if let Some(extern_crate) = ast::ExternCrate::cast(parent.clone()) { + if let Some(first_segment) = extern_crate.name_ref() { + first_segment.syntax().text() == name.syntax().text() + } else { + false + } + } else { + false + }; + + if is_crate_root { + h |= HlMod::CrateRoot; + } + + h | HlMod::Library + }, METHOD_CALL_EXPR => ast::MethodCallExpr::cast(parent) .and_then(|it| highlight_method_call(sema, krate, &it, edition)) .unwrap_or_else(|| SymbolKind::Method.into()), diff --git a/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/test_data/highlight_doctest.html b/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/test_data/highlight_doctest.html index 2f7bc65d14bbf..9a55f7d01b90a 100644 --- a/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/test_data/highlight_doctest.html +++ b/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/test_data/highlight_doctest.html @@ -51,7 +51,13 @@ //! ``` //! ```rust -//! extern crate Krate; +//! extern crate self; +//! extern crate std; +//! extern crate core; +//! extern crate alloc; +//! extern crate proc_macro; +//! extern crate test; +//! extern crate Krate; //! ``` mod outline_module; diff --git a/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/tests.rs b/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/tests.rs index ad3d47639111d..364d0909243f1 100644 --- a/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/tests.rs +++ b/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/tests.rs @@ -723,6 +723,12 @@ fn test_highlight_doc_comment() { //! ``` //! ```rust +//! extern crate self; +//! extern crate std; +//! extern crate core; +//! extern crate alloc; +//! extern crate proc_macro; +//! extern crate test; //! extern crate Krate; //! ``` mod outline_module; From 21b0c22054d0a3e58d496b6b5fb920ca9468efed Mon Sep 17 00:00:00 2001 From: asuto15 Date: Thu, 13 Feb 2025 04:33:08 +0900 Subject: [PATCH 41/75] Delete useless comma --- .../crates/ide/src/syntax_highlighting/highlight.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/highlight.rs b/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/highlight.rs index d580b3001c3eb..8abaccd253685 100644 --- a/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/highlight.rs +++ b/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/highlight.rs @@ -720,7 +720,7 @@ fn highlight_name_ref_by_syntax( } h | HlMod::Library - }, + } METHOD_CALL_EXPR => ast::MethodCallExpr::cast(parent) .and_then(|it| highlight_method_call(sema, krate, &it, edition)) .unwrap_or_else(|| SymbolKind::Method.into()), From b3ef716d165c70f4f2cfb239813d8fdd5a1193f0 Mon Sep 17 00:00:00 2001 From: David Richey Date: Wed, 12 Feb 2025 13:16:38 -0600 Subject: [PATCH 42/75] Apply cfg.setTest to json projects --- .../crates/project-model/src/tests.rs | 5 +- .../crates/project-model/src/workspace.rs | 84 ++++++++++--------- .../output/rust_project_cfg_groups.txt | 2 + ...rust_project_hello_world_project_model.txt | 1 + .../rust-analyzer/src/cli/rustc_tests.rs | 2 +- 5 files changed, 50 insertions(+), 44 deletions(-) diff --git a/src/tools/rust-analyzer/crates/project-model/src/tests.rs b/src/tools/rust-analyzer/crates/project-model/src/tests.rs index 25e4368d95a8c..54eb0e3478a75 100644 --- a/src/tools/rust-analyzer/crates/project-model/src/tests.rs +++ b/src/tools/rust-analyzer/crates/project-model/src/tests.rs @@ -42,7 +42,6 @@ fn load_workspace_from_metadata(file: &str) -> ProjectWorkspace { build_scripts: WorkspaceBuildScripts::default(), rustc: Err(None), error: None, - set_test: true, }, cfg_overrides: Default::default(), sysroot: Sysroot::empty(), @@ -50,6 +49,7 @@ fn load_workspace_from_metadata(file: &str) -> ProjectWorkspace { toolchain: None, target_layout: Err("target_data_layout not loaded".into()), extra_includes: Vec::new(), + set_test: true, } } @@ -65,6 +65,7 @@ fn load_rust_project(file: &str) -> (CrateGraph, ProcMacroPaths) { target_layout: Err(Arc::from("test has no data layout")), cfg_overrides: Default::default(), extra_includes: Vec::new(), + set_test: true, }; to_crate_graph(project_workspace, &mut Default::default()) } @@ -285,7 +286,6 @@ fn smoke_test_real_sysroot_cargo() { build_scripts: WorkspaceBuildScripts::default(), rustc: Err(None), error: None, - set_test: true, }, sysroot, rustc_cfg: Vec::new(), @@ -293,6 +293,7 @@ fn smoke_test_real_sysroot_cargo() { toolchain: None, target_layout: Err("target_data_layout not loaded".into()), extra_includes: Vec::new(), + set_test: true, }; project_workspace.to_crate_graph( &mut { diff --git a/src/tools/rust-analyzer/crates/project-model/src/workspace.rs b/src/tools/rust-analyzer/crates/project-model/src/workspace.rs index 4f8449cb68c30..f5d46daa80fab 100644 --- a/src/tools/rust-analyzer/crates/project-model/src/workspace.rs +++ b/src/tools/rust-analyzer/crates/project-model/src/workspace.rs @@ -64,6 +64,8 @@ pub struct ProjectWorkspace { pub cfg_overrides: CfgOverrides, /// Additional includes to add for the VFS. pub extra_includes: Vec, + /// Set `cfg(test)` for local crates + pub set_test: bool, } #[derive(Clone)] @@ -79,7 +81,6 @@ pub enum ProjectWorkspaceKind { /// The rustc workspace loaded for this workspace. An `Err(None)` means loading has been /// disabled or was otherwise not requested. rustc: Result, Option>, - set_test: bool, }, /// Project workspace was specified using a `rust-project.json` file. Json(ProjectJson), @@ -98,7 +99,6 @@ pub enum ProjectWorkspaceKind { file: ManifestPath, /// Is this file a cargo script file? cargo: Option<(CargoWorkspace, WorkspaceBuildScripts, Option>)>, - set_test: bool, }, } @@ -113,9 +113,10 @@ impl fmt::Debug for ProjectWorkspace { target_layout, cfg_overrides, extra_includes, + set_test, } = self; match kind { - ProjectWorkspaceKind::Cargo { cargo, error: _, build_scripts, rustc, set_test } => f + ProjectWorkspaceKind::Cargo { cargo, error: _, build_scripts, rustc } => f .debug_struct("Cargo") .field("root", &cargo.workspace_root().file_name()) .field("n_packages", &cargo.packages().len()) @@ -141,11 +142,12 @@ impl fmt::Debug for ProjectWorkspace { .field("toolchain", &toolchain) .field("data_layout", &target_layout) .field("n_cfg_overrides", &cfg_overrides.len()) - .field("n_extra_includes", &extra_includes.len()); + .field("n_extra_includes", &extra_includes.len()) + .field("set_test", set_test); debug_struct.finish() } - ProjectWorkspaceKind::DetachedFile { file, cargo: cargo_script, set_test } => f + ProjectWorkspaceKind::DetachedFile { file, cargo: cargo_script } => f .debug_struct("DetachedFiles") .field("file", &file) .field("cargo_script", &cargo_script.is_some()) @@ -386,7 +388,6 @@ impl ProjectWorkspace { build_scripts: WorkspaceBuildScripts::default(), rustc, error: error.map(Arc::new), - set_test: *set_test, }, sysroot, rustc_cfg, @@ -394,6 +395,7 @@ impl ProjectWorkspace { toolchain, target_layout: data_layout.map(Arc::from).map_err(|it| Arc::from(it.to_string())), extra_includes: extra_includes.clone(), + set_test: *set_test, }) } @@ -449,6 +451,7 @@ impl ProjectWorkspace { target_layout: target_layout.map(Arc::from).map_err(|it| Arc::from(it.to_string())), cfg_overrides: config.cfg_overrides.clone(), extra_includes: config.extra_includes.clone(), + set_test: config.set_test, } } @@ -504,7 +507,6 @@ impl ProjectWorkspace { kind: ProjectWorkspaceKind::DetachedFile { file: detached_file.to_owned(), cargo: cargo_script, - set_test: config.set_test, }, sysroot, rustc_cfg, @@ -512,6 +514,7 @@ impl ProjectWorkspace { target_layout: data_layout.map(Arc::from).map_err(|it| Arc::from(it.to_string())), cfg_overrides: config.cfg_overrides.clone(), extra_includes: config.extra_includes.clone(), + set_test: config.set_test, }) } @@ -696,7 +699,7 @@ impl ProjectWorkspace { .into_iter() .chain(mk_sysroot()) .collect::>(), - ProjectWorkspaceKind::Cargo { cargo, rustc, build_scripts, error: _, set_test: _ } => { + ProjectWorkspaceKind::Cargo { cargo, rustc, build_scripts, error: _ } => { cargo .packages() .map(|pkg| { @@ -831,8 +834,9 @@ impl ProjectWorkspace { sysroot, extra_env, cfg_overrides, + self.set_test, ), - ProjectWorkspaceKind::Cargo { cargo, rustc, build_scripts, error: _, set_test } => { + ProjectWorkspaceKind::Cargo { cargo, rustc, build_scripts, error: _ } => { cargo_to_crate_graph( load, rustc.as_ref().map(|a| a.as_ref()).ok(), @@ -841,10 +845,10 @@ impl ProjectWorkspace { rustc_cfg.clone(), cfg_overrides, build_scripts, - *set_test, + self.set_test, ) } - ProjectWorkspaceKind::DetachedFile { file, cargo: cargo_script, set_test, .. } => { + ProjectWorkspaceKind::DetachedFile { file, cargo: cargo_script, .. } => { if let Some((cargo, build_scripts, _)) = cargo_script { cargo_to_crate_graph( &mut |path| load(path), @@ -854,7 +858,7 @@ impl ProjectWorkspace { rustc_cfg.clone(), cfg_overrides, build_scripts, - *set_test, + self.set_test, ) } else { detached_file_to_crate_graph( @@ -863,7 +867,7 @@ impl ProjectWorkspace { file, sysroot, cfg_overrides, - *set_test, + self.set_test, ) } } @@ -885,34 +889,22 @@ impl ProjectWorkspace { } = other; (match (kind, o_kind) { ( - ProjectWorkspaceKind::Cargo { - cargo, - rustc, - build_scripts: _, - error: _, - set_test: _, - }, + ProjectWorkspaceKind::Cargo { cargo, rustc, build_scripts: _, error: _ }, ProjectWorkspaceKind::Cargo { cargo: o_cargo, rustc: o_rustc, build_scripts: _, error: _, - set_test: _, }, ) => cargo == o_cargo && rustc == o_rustc, (ProjectWorkspaceKind::Json(project), ProjectWorkspaceKind::Json(o_project)) => { project == o_project } ( - ProjectWorkspaceKind::DetachedFile { - file, - cargo: Some((cargo_script, _, _)), - set_test: _, - }, + ProjectWorkspaceKind::DetachedFile { file, cargo: Some((cargo_script, _, _)) }, ProjectWorkspaceKind::DetachedFile { file: o_file, cargo: Some((o_cargo_script, _, _)), - set_test: _, }, ) => file == o_file && cargo_script == o_cargo_script, _ => return false, @@ -940,13 +932,13 @@ fn project_json_to_crate_graph( sysroot: &Sysroot, extra_env: &FxHashMap, override_cfg: &CfgOverrides, + set_test: bool, ) -> (CrateGraph, ProcMacroPaths) { let mut res = (CrateGraph::default(), ProcMacroPaths::default()); let (crate_graph, proc_macros) = &mut res; let (public_deps, libproc_macro) = sysroot_to_crate_graph(crate_graph, sysroot, rustc_cfg.clone(), load); - let r_a_cfg_flag = CfgAtom::Flag(sym::rust_analyzer.clone()); let mut cfg_cache: FxHashMap<&str, Vec> = FxHashMap::default(); let idx_to_crate_id: FxHashMap = project @@ -965,6 +957,7 @@ fn project_json_to_crate_graph( proc_macro_dylib_path, is_proc_macro, repository, + is_workspace_member, .. }, file_id, @@ -982,19 +975,28 @@ fn project_json_to_crate_graph( None => &rustc_cfg, }; - let mut cfg_options = target_cfgs - .iter() - .chain(cfg.iter()) - .chain(iter::once(&r_a_cfg_flag)) - .cloned() - .collect(); - override_cfg.apply( - &mut cfg_options, - display_name - .as_ref() - .map(|it| it.canonical_name().as_str()) - .unwrap_or_default(), - ); + let cfg_options = { + let mut cfg_options: CfgOptions = + target_cfgs.iter().chain(cfg.iter()).cloned().collect(); + + if *is_workspace_member { + if set_test { + // Add test cfg for local crates + cfg_options.insert_atom(sym::test.clone()); + } + cfg_options.insert_atom(sym::rust_analyzer.clone()); + } + + override_cfg.apply( + &mut cfg_options, + display_name + .as_ref() + .map(|it| it.canonical_name().as_str()) + .unwrap_or_default(), + ); + cfg_options + }; + let crate_graph_crate_id = crate_graph.add_crate_root( file_id, *edition, diff --git a/src/tools/rust-analyzer/crates/project-model/test_data/output/rust_project_cfg_groups.txt b/src/tools/rust-analyzer/crates/project-model/test_data/output/rust_project_cfg_groups.txt index 2026ab2b8c2fa..587d3c17827e0 100644 --- a/src/tools/rust-analyzer/crates/project-model/test_data/output/rust_project_cfg_groups.txt +++ b/src/tools/rust-analyzer/crates/project-model/test_data/output/rust_project_cfg_groups.txt @@ -420,6 +420,7 @@ "group1_other_cfg=other_config", "group2_cfg=yet_another_config", "rust_analyzer", + "test", "true", ], ), @@ -496,6 +497,7 @@ "group2_cfg=fourth_config", "group2_cfg=yet_another_config", "rust_analyzer", + "test", "true", "unrelated_cfg", ], diff --git a/src/tools/rust-analyzer/crates/project-model/test_data/output/rust_project_hello_world_project_model.txt b/src/tools/rust-analyzer/crates/project-model/test_data/output/rust_project_hello_world_project_model.txt index a0e14b8fcb22c..00805c79bccec 100644 --- a/src/tools/rust-analyzer/crates/project-model/test_data/output/rust_project_hello_world_project_model.txt +++ b/src/tools/rust-analyzer/crates/project-model/test_data/output/rust_project_hello_world_project_model.txt @@ -417,6 +417,7 @@ cfg_options: CfgOptions( [ "rust_analyzer", + "test", "true", ], ), diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/rustc_tests.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/rustc_tests.rs index b9b7ad1faf891..e9ca12deaf6e6 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/rustc_tests.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/rustc_tests.rs @@ -90,7 +90,6 @@ impl Tester { kind: ProjectWorkspaceKind::DetachedFile { file: ManifestPath::try_from(tmp_file).unwrap(), cargo: None, - set_test: true, }, sysroot, rustc_cfg: vec![], @@ -98,6 +97,7 @@ impl Tester { target_layout: data_layout.map(Arc::from).map_err(|it| Arc::from(it.to_string())), cfg_overrides: Default::default(), extra_includes: vec![], + set_test: true, }; let load_cargo_config = LoadCargoConfig { load_out_dirs_from_check: false, From 7c61ec72e7b8ae411135d20fc25baf0fdcb62d52 Mon Sep 17 00:00:00 2001 From: Shoyu Vanilla Date: Fri, 14 Feb 2025 02:36:05 +0900 Subject: [PATCH 43/75] internal: Remove mutable syntax tree usages from `add_missing_match_arms` assist --- .../src/handlers/add_missing_match_arms.rs | 130 +++++++++--------- .../crates/syntax/src/ast/edit_in_place.rs | 46 ------- .../crates/syntax/src/ast/make.rs | 3 +- 3 files changed, 66 insertions(+), 113 deletions(-) diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/add_missing_match_arms.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/add_missing_match_arms.rs index 5899ec5a00584..a9a2875a60c1d 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/add_missing_match_arms.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/add_missing_match_arms.rs @@ -6,7 +6,9 @@ use ide_db::syntax_helpers::suggest_name; use ide_db::RootDatabase; use ide_db::{famous_defs::FamousDefs, helpers::mod_path_to_ast}; use itertools::Itertools; -use syntax::ast::edit_in_place::Removable; +use syntax::ast::edit::IndentLevel; +use syntax::ast::edit_in_place::Indent; +use syntax::ast::syntax_factory::SyntaxFactory; use syntax::ast::{self, make, AstNode, MatchArmList, MatchExpr, Pat}; use crate::{utils, AssistContext, AssistId, AssistKind, Assists}; @@ -200,8 +202,8 @@ pub(crate) fn add_missing_match_arms(acc: &mut Assists, ctx: &AssistContext<'_>) AssistId("add_missing_match_arms", AssistKind::QuickFix), "Fill match arms", ctx.sema.original_range(match_expr.syntax()).range, - |edit| { - let new_match_arm_list = match_arm_list.clone_for_update(); + |builder| { + let make = SyntaxFactory::new(); // having any hidden variants means that we need a catch-all arm needs_catch_all_arm |= has_hidden_variants; @@ -211,89 +213,85 @@ pub(crate) fn add_missing_match_arms(acc: &mut Assists, ctx: &AssistContext<'_>) // filter out hidden patterns because they're handled by the catch-all arm !hidden }) - .map(|(pat, _)| { - make::match_arm(pat, None, make::ext::expr_todo()).clone_for_update() - }); + .map(|(pat, _)| make.match_arm(pat, None, make::ext::expr_todo())); - let catch_all_arm = new_match_arm_list + let mut arms: Vec<_> = match_arm_list .arms() - .find(|arm| matches!(arm.pat(), Some(ast::Pat::WildcardPat(_)))); - if let Some(arm) = catch_all_arm { - let is_empty_expr = arm.expr().is_none_or(|e| match e { - ast::Expr::BlockExpr(b) => { - b.statements().next().is_none() && b.tail_expr().is_none() + .filter(|arm| { + if matches!(arm.pat(), Some(ast::Pat::WildcardPat(_))) { + let is_empty_expr = arm.expr().is_none_or(|e| match e { + ast::Expr::BlockExpr(b) => { + b.statements().next().is_none() && b.tail_expr().is_none() + } + ast::Expr::TupleExpr(t) => t.fields().next().is_none(), + _ => false, + }); + if is_empty_expr { + false + } else { + cov_mark::hit!(add_missing_match_arms_empty_expr); + true + } + } else { + true } - ast::Expr::TupleExpr(t) => t.fields().next().is_none(), - _ => false, - }); - if is_empty_expr { - arm.remove(); - } else { - cov_mark::hit!(add_missing_match_arms_empty_expr); - } - } + }) + .collect(); - let mut added_arms = Vec::new(); - let mut todo_placeholders = Vec::new(); - for arm in missing_arms { - todo_placeholders.push(arm.expr().unwrap()); - added_arms.push(arm); - } + let first_new_arm_idx = arms.len(); + arms.extend(missing_arms); if needs_catch_all_arm && !has_catch_all_arm { cov_mark::hit!(added_wildcard_pattern); - let arm = - make::match_arm(make::wildcard_pat().into(), None, make::ext::expr_todo()) - .clone_for_update(); - todo_placeholders.push(arm.expr().unwrap()); - added_arms.push(arm); - } - - let first_new_arm = added_arms.first().cloned(); - let last_new_arm = added_arms.last().cloned(); - - for arm in added_arms { - new_match_arm_list.add_arm(arm); + let arm = make.match_arm(make::wildcard_pat().into(), None, make::ext::expr_todo()); + arms.push(arm); } - if let Some(cap) = ctx.config.snippet_cap { - if let Some(it) = first_new_arm - .and_then(|arm| arm.syntax().descendants().find_map(ast::WildcardPat::cast)) - { - edit.add_placeholder_snippet(cap, it); - } - - for placeholder in todo_placeholders { - edit.add_placeholder_snippet(cap, placeholder); - } - - if let Some(arm) = last_new_arm { - edit.add_tabstop_after(cap, arm); - } - } + let new_match_arm_list = make.match_arm_list(arms); - // FIXME: Hack for mutable syntax trees not having great support for macros + // FIXME: Hack for syntax trees not having great support for macros // Just replace the element that the original range came from let old_place = { // Find the original element let file = ctx.sema.parse(arm_list_range.file_id); let old_place = file.syntax().covering_element(arm_list_range.range); - // Make `old_place` mut match old_place { - syntax::SyntaxElement::Node(it) => { - syntax::SyntaxElement::from(edit.make_syntax_mut(it)) - } + syntax::SyntaxElement::Node(it) => it, syntax::SyntaxElement::Token(it) => { // If a token is found, it is '{' or '}' // The parent is `{ ... }` - let parent = it.parent().expect("Token must have a parent."); - syntax::SyntaxElement::from(edit.make_syntax_mut(parent)) + it.parent().expect("Token must have a parent.") } } }; - syntax::ted::replace(old_place, new_match_arm_list.syntax()); + let mut editor = builder.make_editor(&old_place); + new_match_arm_list.indent(IndentLevel::from_node(&old_place)); + editor.replace(old_place, new_match_arm_list.syntax()); + + if let Some(cap) = ctx.config.snippet_cap { + if let Some(it) = new_match_arm_list + .arms() + .nth(first_new_arm_idx) + .and_then(|arm| arm.syntax().descendants().find_map(ast::WildcardPat::cast)) + { + editor.add_annotation(it.syntax(), builder.make_placeholder_snippet(cap)); + } + + for arm in new_match_arm_list.arms().skip(first_new_arm_idx) { + if let Some(expr) = arm.expr() { + editor.add_annotation(expr.syntax(), builder.make_placeholder_snippet(cap)); + } + } + + if let Some(arm) = new_match_arm_list.arms().skip(first_new_arm_idx).last() { + editor.add_annotation(arm.syntax(), builder.make_tabstop_after(cap)); + } + } + + editor.add_mappings(make.finish_with_mappings()); + builder.add_file_edits(ctx.file_id(), editor); }, ) } @@ -1502,10 +1500,10 @@ enum Test { fn foo(t: Test) { m!(match t { - Test::A => ${1:todo!()}, - Test::B => ${2:todo!()}, - Test::C => ${3:todo!()},$0 -}); + Test::A => ${1:todo!()}, + Test::B => ${2:todo!()}, + Test::C => ${3:todo!()},$0 + }); }"#, ); } diff --git a/src/tools/rust-analyzer/crates/syntax/src/ast/edit_in_place.rs b/src/tools/rust-analyzer/crates/syntax/src/ast/edit_in_place.rs index 291fc646e2161..aedf810b79431 100644 --- a/src/tools/rust-analyzer/crates/syntax/src/ast/edit_in_place.rs +++ b/src/tools/rust-analyzer/crates/syntax/src/ast/edit_in_place.rs @@ -710,52 +710,6 @@ impl ast::Fn { } } -impl Removable for ast::MatchArm { - fn remove(&self) { - if let Some(sibling) = self.syntax().prev_sibling_or_token() { - if sibling.kind() == SyntaxKind::WHITESPACE { - ted::remove(sibling); - } - } - if let Some(sibling) = self.syntax().next_sibling_or_token() { - if sibling.kind() == T![,] { - ted::remove(sibling); - } - } - ted::remove(self.syntax()); - } -} - -impl ast::MatchArmList { - pub fn add_arm(&self, arm: ast::MatchArm) { - normalize_ws_between_braces(self.syntax()); - let mut elements = Vec::new(); - let position = match self.arms().last() { - Some(last_arm) => { - if needs_comma(&last_arm) { - ted::append_child(last_arm.syntax(), make::token(SyntaxKind::COMMA)); - } - Position::after(last_arm.syntax().clone()) - } - None => match self.l_curly_token() { - Some(it) => Position::after(it), - None => Position::last_child_of(self.syntax()), - }, - }; - let indent = IndentLevel::from_node(self.syntax()) + 1; - elements.push(make::tokens::whitespace(&format!("\n{indent}")).into()); - elements.push(arm.syntax().clone().into()); - if needs_comma(&arm) { - ted::append_child(arm.syntax(), make::token(SyntaxKind::COMMA)); - } - ted::insert_all(position, elements); - - fn needs_comma(arm: &ast::MatchArm) -> bool { - arm.expr().is_some_and(|e| !e.is_block_like()) && arm.comma_token().is_none() - } - } -} - impl ast::LetStmt { pub fn set_ty(&self, ty: Option) { match ty { diff --git a/src/tools/rust-analyzer/crates/syntax/src/ast/make.rs b/src/tools/rust-analyzer/crates/syntax/src/ast/make.rs index ff027ac5848b3..9dc2d83253049 100644 --- a/src/tools/rust-analyzer/crates/syntax/src/ast/make.rs +++ b/src/tools/rust-analyzer/crates/syntax/src/ast/make.rs @@ -837,7 +837,8 @@ pub fn match_guard(condition: ast::Expr) -> ast::MatchGuard { pub fn match_arm_list(arms: impl IntoIterator) -> ast::MatchArmList { let arms_str = arms.into_iter().fold(String::new(), |mut acc, arm| { - let needs_comma = arm.expr().is_none_or(|it| !it.is_block_like()); + let needs_comma = + arm.comma_token().is_none() && arm.expr().is_none_or(|it| !it.is_block_like()); let comma = if needs_comma { "," } else { "" }; let arm = arm.syntax(); format_to_acc!(acc, " {arm}{comma}\n") From bad69a3d044f651e1fa652558ef47f247f885bc3 Mon Sep 17 00:00:00 2001 From: Jacob Lifshay Date: Thu, 13 Feb 2025 18:45:31 -0800 Subject: [PATCH 44/75] add cargo's git checkouts to the list of paths to mark as read-only in vscode --- src/tools/rust-analyzer/editors/code/walkthrough-setup-tips.md | 1 + 1 file changed, 1 insertion(+) diff --git a/src/tools/rust-analyzer/editors/code/walkthrough-setup-tips.md b/src/tools/rust-analyzer/editors/code/walkthrough-setup-tips.md index fda4ac80023f0..aabe0dd662bd4 100644 --- a/src/tools/rust-analyzer/editors/code/walkthrough-setup-tips.md +++ b/src/tools/rust-analyzer/editors/code/walkthrough-setup-tips.md @@ -5,6 +5,7 @@ Add the following to settings.json to mark Rust library sources as read-only: ```json "files.readonlyInclude": { "**/.cargo/registry/src/**/*.rs": true, + "**/.cargo/git/checkouts/**/*.rs": true, "**/lib/rustlib/src/rust/library/**/*.rs": true, }, ``` From 36c314cfb7999a66a49932822a336aea47f62292 Mon Sep 17 00:00:00 2001 From: Pietro Albini Date: Fri, 14 Feb 2025 11:16:32 +0100 Subject: [PATCH 45/75] generate-copyright: pass the source root from bootstrap --- src/bootstrap/src/core/build_steps/run.rs | 1 + src/tools/generate-copyright/src/main.rs | 7 ++++--- 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/src/bootstrap/src/core/build_steps/run.rs b/src/bootstrap/src/core/build_steps/run.rs index 167b8a5b168c9..84c94a268a38c 100644 --- a/src/bootstrap/src/core/build_steps/run.rs +++ b/src/bootstrap/src/core/build_steps/run.rs @@ -217,6 +217,7 @@ impl Step for GenerateCopyright { cmd.env("DEST", &dest); cmd.env("DEST_LIBSTD", &dest_libstd); cmd.env("OUT_DIR", &builder.out); + cmd.env("SRC_DIR", &builder.src); cmd.env("CARGO", &builder.initial_cargo); // it is important that generate-copyright runs from the root of the // source tree, because it uses relative paths diff --git a/src/tools/generate-copyright/src/main.rs b/src/tools/generate-copyright/src/main.rs index 7a014989e6880..677ac76439e88 100644 --- a/src/tools/generate-copyright/src/main.rs +++ b/src/tools/generate-copyright/src/main.rs @@ -18,6 +18,7 @@ fn main() -> Result<(), Error> { let dest_file = env_path("DEST")?; let libstd_dest_file = env_path("DEST_LIBSTD")?; let out_dir = env_path("OUT_DIR")?; + let src_dir = env_path("SRC_DIR")?; let cargo = env_path("CARGO")?; let license_metadata = env_path("LICENSE_METADATA")?; @@ -27,7 +28,7 @@ fn main() -> Result<(), Error> { let mut collected_cargo_metadata = cargo_metadata::get_metadata_and_notices( &cargo, &out_dir.join("vendor"), - &root_path, + &src_dir, &[ Path::new("./Cargo.toml"), Path::new("./src/tools/cargo/Cargo.toml"), @@ -38,7 +39,7 @@ fn main() -> Result<(), Error> { let library_collected_cargo_metadata = cargo_metadata::get_metadata_and_notices( &cargo, &out_dir.join("library-vendor"), - &root_path, + &src_dir, &[Path::new("./library/Cargo.toml")], )?; @@ -54,7 +55,7 @@ fn main() -> Result<(), Error> { let library_collected_tree_metadata = Metadata { files: collected_tree_metadata .files - .trim_clone(&Path::new("./library"), &Path::new(".")) + .trim_clone(&src_dir.join("library"), &src_dir) .unwrap(), }; From 08b4f6d2c650d3e6e9010e8a27631962bf31dec7 Mon Sep 17 00:00:00 2001 From: Pietro Albini Date: Fri, 14 Feb 2025 11:16:47 +0100 Subject: [PATCH 46/75] generate-copyright: pass the list of manifests from bootstrap --- src/bootstrap/src/core/build_steps/run.rs | 15 ++++++++ .../generate-copyright/src/cargo_metadata.rs | 6 ++-- src/tools/generate-copyright/src/main.rs | 35 +++++++++++++++---- 3 files changed, 46 insertions(+), 10 deletions(-) diff --git a/src/bootstrap/src/core/build_steps/run.rs b/src/bootstrap/src/core/build_steps/run.rs index 84c94a268a38c..3f5e701e7e17a 100644 --- a/src/bootstrap/src/core/build_steps/run.rs +++ b/src/bootstrap/src/core/build_steps/run.rs @@ -9,6 +9,7 @@ use crate::Mode; use crate::core::build_steps::dist::distdir; use crate::core::build_steps::test; use crate::core::build_steps::tool::{self, SourceType, Tool}; +use crate::core::build_steps::vendor::default_paths_to_vendor; use crate::core::builder::{Builder, Kind, RunConfig, ShouldRun, Step}; use crate::core::config::TargetSelection; use crate::core::config::flags::get_completion; @@ -212,7 +213,21 @@ impl Step for GenerateCopyright { let dest = builder.out.join("COPYRIGHT.html"); let dest_libstd = builder.out.join("COPYRIGHT-library.html"); + let paths_to_vendor = default_paths_to_vendor(builder); + for (_, submodules) in &paths_to_vendor { + for submodule in submodules { + builder.build.require_submodule(submodule, None); + } + } + let cargo_manifests = paths_to_vendor + .into_iter() + .map(|(path, _submodules)| path.to_str().unwrap().to_string()) + .inspect(|path| assert!(!path.contains(','), "{path} contains a comma in its name")) + .collect::>() + .join(","); + let mut cmd = builder.tool_cmd(Tool::GenerateCopyright); + cmd.env("CARGO_MANIFESTS", &cargo_manifests); cmd.env("LICENSE_METADATA", &license_metadata); cmd.env("DEST", &dest); cmd.env("DEST_LIBSTD", &dest_libstd); diff --git a/src/tools/generate-copyright/src/cargo_metadata.rs b/src/tools/generate-copyright/src/cargo_metadata.rs index 51e353e9b229f..16c5b5e7104e2 100644 --- a/src/tools/generate-copyright/src/cargo_metadata.rs +++ b/src/tools/generate-copyright/src/cargo_metadata.rs @@ -54,7 +54,7 @@ pub fn get_metadata_and_notices( cargo: &Path, vendor_path: &Path, root_path: &Path, - manifest_paths: &[&Path], + manifest_paths: &[PathBuf], ) -> Result, Error> { let mut output = get_metadata(cargo, root_path, manifest_paths)?; @@ -77,7 +77,7 @@ pub fn get_metadata_and_notices( pub fn get_metadata( cargo: &Path, root_path: &Path, - manifest_paths: &[&Path], + manifest_paths: &[PathBuf], ) -> Result, Error> { let mut output = BTreeMap::new(); // Look at the metadata for each manifest @@ -114,7 +114,7 @@ pub fn get_metadata( } /// Run cargo-vendor, fetching into the given dir -fn run_cargo_vendor(cargo: &Path, dest: &Path, manifest_paths: &[&Path]) -> Result<(), Error> { +fn run_cargo_vendor(cargo: &Path, dest: &Path, manifest_paths: &[PathBuf]) -> Result<(), Error> { let mut vendor_command = std::process::Command::new(cargo); vendor_command.env("RUSTC_BOOTSTRAP", "1"); vendor_command.arg("vendor"); diff --git a/src/tools/generate-copyright/src/main.rs b/src/tools/generate-copyright/src/main.rs index 677ac76439e88..7b7cf0f4b6991 100644 --- a/src/tools/generate-copyright/src/main.rs +++ b/src/tools/generate-copyright/src/main.rs @@ -22,25 +22,35 @@ fn main() -> Result<(), Error> { let cargo = env_path("CARGO")?; let license_metadata = env_path("LICENSE_METADATA")?; - let root_path = std::path::absolute(".")?; + let cargo_manifests = env_string("CARGO_MANIFESTS")? + .split(",") + .map(|manifest| manifest.into()) + .collect::>(); + let library_manifests = cargo_manifests + .iter() + .filter(|path| { + if let Ok(stripped) = path.strip_prefix(&src_dir) { + stripped.starts_with("library") + } else { + panic!("manifest {path:?} not relative to source dir {src_dir:?}"); + } + }) + .cloned() + .collect::>(); // Scan Cargo dependencies let mut collected_cargo_metadata = cargo_metadata::get_metadata_and_notices( &cargo, &out_dir.join("vendor"), &src_dir, - &[ - Path::new("./Cargo.toml"), - Path::new("./src/tools/cargo/Cargo.toml"), - Path::new("./library/Cargo.toml"), - ], + &cargo_manifests, )?; let library_collected_cargo_metadata = cargo_metadata::get_metadata_and_notices( &cargo, &out_dir.join("library-vendor"), &src_dir, - &[Path::new("./library/Cargo.toml")], + &library_manifests, )?; for (key, value) in collected_cargo_metadata.iter_mut() { @@ -194,6 +204,17 @@ struct License { copyright: Vec, } +/// Grab an environment variable as string, or fail nicely. +fn env_string(var: &str) -> Result { + match std::env::var(var) { + Ok(var) => Ok(var), + Err(std::env::VarError::NotUnicode(_)) => { + anyhow::bail!("environment variable {var} is not utf-8") + } + Err(std::env::VarError::NotPresent) => anyhow::bail!("missing environment variable {var}"), + } +} + /// Grab an environment variable as a PathBuf, or fail nicely. fn env_path(var: &str) -> Result { if let Some(var) = std::env::var_os(var) { From 84485a8568f864befdf0eacb7eb275068403dd40 Mon Sep 17 00:00:00 2001 From: asuto15 Date: Sat, 15 Feb 2025 12:06:21 +0900 Subject: [PATCH 47/75] Delete library modifier to highlighting for extern crate --- .../ide/src/syntax_highlighting/highlight.rs | 19 +------------------ .../test_data/highlight_doctest.html | 12 ++++++------ 2 files changed, 7 insertions(+), 24 deletions(-) diff --git a/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/highlight.rs b/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/highlight.rs index 8abaccd253685..92211e9e3a9b0 100644 --- a/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/highlight.rs +++ b/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/highlight.rs @@ -703,24 +703,7 @@ fn highlight_name_ref_by_syntax( }; match parent.kind() { - EXTERN_CRATE => { - let mut h: Highlight = HlTag::Symbol(SymbolKind::Module).into(); - let is_crate_root = if let Some(extern_crate) = ast::ExternCrate::cast(parent.clone()) { - if let Some(first_segment) = extern_crate.name_ref() { - first_segment.syntax().text() == name.syntax().text() - } else { - false - } - } else { - false - }; - - if is_crate_root { - h |= HlMod::CrateRoot; - } - - h | HlMod::Library - } + EXTERN_CRATE => (HlTag::Symbol(SymbolKind::Module) | HlMod::CrateRoot).into(), METHOD_CALL_EXPR => ast::MethodCallExpr::cast(parent) .and_then(|it| highlight_method_call(sema, krate, &it, edition)) .unwrap_or_else(|| SymbolKind::Method.into()), diff --git a/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/test_data/highlight_doctest.html b/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/test_data/highlight_doctest.html index 9a55f7d01b90a..eb77c14c2a570 100644 --- a/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/test_data/highlight_doctest.html +++ b/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/test_data/highlight_doctest.html @@ -52,12 +52,12 @@ //! ```rust //! extern crate self; -//! extern crate std; -//! extern crate core; -//! extern crate alloc; -//! extern crate proc_macro; -//! extern crate test; -//! extern crate Krate; +//! extern crate std; +//! extern crate core; +//! extern crate alloc; +//! extern crate proc_macro; +//! extern crate test; +//! extern crate Krate; //! ``` mod outline_module; From eaf22bcdce02cca4d71fb6619f89fe048026a8bd Mon Sep 17 00:00:00 2001 From: asuto15 Date: Sat, 15 Feb 2025 13:18:18 +0900 Subject: [PATCH 48/75] fix: remove unnecessary conversion --- .../crates/ide/src/syntax_highlighting/highlight.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/highlight.rs b/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/highlight.rs index 92211e9e3a9b0..194fde1160119 100644 --- a/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/highlight.rs +++ b/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/highlight.rs @@ -703,7 +703,7 @@ fn highlight_name_ref_by_syntax( }; match parent.kind() { - EXTERN_CRATE => (HlTag::Symbol(SymbolKind::Module) | HlMod::CrateRoot).into(), + EXTERN_CRATE => HlTag::Symbol(SymbolKind::Module) | HlMod::CrateRoot, METHOD_CALL_EXPR => ast::MethodCallExpr::cast(parent) .and_then(|it| highlight_method_call(sema, krate, &it, edition)) .unwrap_or_else(|| SymbolKind::Method.into()), From ea10f8efa1d9515a2ced80a05245c5bd19e55040 Mon Sep 17 00:00:00 2001 From: Niklas Korz Date: Sat, 15 Feb 2025 12:04:48 +0100 Subject: [PATCH 49/75] boostrap: skip no_std targets in Std doc step --- src/bootstrap/src/core/build_steps/doc.rs | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/src/bootstrap/src/core/build_steps/doc.rs b/src/bootstrap/src/core/build_steps/doc.rs index dedcc139ae198..1f0787b9c63b7 100644 --- a/src/bootstrap/src/core/build_steps/doc.rs +++ b/src/bootstrap/src/core/build_steps/doc.rs @@ -580,6 +580,10 @@ impl Step for Std { fn make_run(run: RunConfig<'_>) { let crates = compile::std_crates_for_run_make(&run); + let target_is_no_std = run.builder.no_std(run.target).unwrap_or(false); + if crates.is_empty() && target_is_no_std { + return; + } run.builder.ensure(Std { stage: run.builder.top_stage, target: run.target, From 6e7838d81d99688575a1cfaa49b40fb6cae7b377 Mon Sep 17 00:00:00 2001 From: Olivier FAURE Date: Sat, 15 Feb 2025 13:23:32 +0100 Subject: [PATCH 50/75] Factor out business logic of expand_glob_import --- .../src/handlers/expand_glob_import.rs | 157 +++++++++--------- 1 file changed, 75 insertions(+), 82 deletions(-) diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/expand_glob_import.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/expand_glob_import.rs index 094fdc46eb762..ea82bdc902671 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/expand_glob_import.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/expand_glob_import.rs @@ -3,10 +3,11 @@ use hir::{AssocItem, Enum, HasVisibility, Module, ModuleDef, Name, PathResolutio use ide_db::{ defs::{Definition, NameRefClass}, search::SearchScope, + source_change::SourceChangeBuilder, }; use stdx::never; use syntax::{ - ast::{self, make}, + ast::{self, make, Use, UseTree}, ted, AstNode, Direction, SyntaxNode, SyntaxToken, T, }; @@ -43,6 +44,7 @@ use crate::{ pub(crate) fn expand_glob_import(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option<()> { let star = ctx.find_token_syntax_at_offset(T![*])?; let use_tree = star.parent().and_then(ast::UseTree::cast)?; + let use_item = star.parent_ancestors().find_map(ast::Use::cast)?; let (parent, mod_path) = find_parent_and_path(&star)?; let target_module = match ctx.sema.resolve_path(&mod_path)? { PathResolution::Def(ModuleDef::Module(it)) => Expandable::Module(it), @@ -53,8 +55,9 @@ pub(crate) fn expand_glob_import(acc: &mut Assists, ctx: &AssistContext<'_>) -> let current_scope = ctx.sema.scope(&star.parent()?)?; let current_module = current_scope.module(); - let refs_in_target = find_refs_in_mod(ctx, target_module, current_module)?; - let imported_defs = find_imported_defs(ctx, star)?; + if !is_visible_from(ctx, &target_module, current_module) { + return None; + } let target = parent.either(|n| n.syntax().clone(), |n| n.syntax().clone()); acc.add( @@ -62,37 +65,51 @@ pub(crate) fn expand_glob_import(acc: &mut Assists, ctx: &AssistContext<'_>) -> "Expand glob import", target.text_range(), |builder| { - let use_tree = builder.make_mut(use_tree); - - let names_to_import = find_names_to_import(ctx, refs_in_target, imported_defs); - let expanded = make::use_tree_list(names_to_import.iter().map(|n| { - let path = make::ext::ident_path( - &n.display(ctx.db(), current_module.krate().edition(ctx.db())).to_string(), - ); - make::use_tree(path, None, None, false) - })) - .clone_for_update(); - - match use_tree.star_token() { - Some(star) => { - let needs_braces = use_tree.path().is_some() && names_to_import.len() != 1; - if needs_braces { - ted::replace(star, expanded.syntax()) - } else { - let without_braces = expanded - .syntax() - .children_with_tokens() - .filter(|child| !matches!(child.kind(), T!['{'] | T!['}'])) - .collect(); - ted::replace_with_many(star, without_braces) - } - } - None => never!(), - } + build_expanded_import(ctx, builder, use_tree, use_item, target_module, current_module) }, ) } +fn build_expanded_import( + ctx: &AssistContext<'_>, + builder: &mut SourceChangeBuilder, + use_tree: UseTree, + use_item: Use, + target_module: Expandable, + current_module: Module, +) { + let refs_in_target = find_refs_in_mod(ctx, target_module, current_module); + let imported_defs = find_imported_defs(ctx, use_item); + + let use_tree = builder.make_mut(use_tree); + + let names_to_import = find_names_to_import(ctx, refs_in_target, imported_defs); + let expanded = make::use_tree_list(names_to_import.iter().map(|n| { + let path = make::ext::ident_path( + &n.display(ctx.db(), current_module.krate().edition(ctx.db())).to_string(), + ); + make::use_tree(path, None, None, false) + })) + .clone_for_update(); + + match use_tree.star_token() { + Some(star) => { + let needs_braces = use_tree.path().is_some() && names_to_import.len() != 1; + if needs_braces { + ted::replace(star, expanded.syntax()) + } else { + let without_braces = expanded + .syntax() + .children_with_tokens() + .filter(|child| !matches!(child.kind(), T!['{'] | T!['}'])) + .collect(); + ted::replace_with_many(star, without_braces) + } + } + None => never!(), + } +} + enum Expandable { Module(Module), Enum(Enum), @@ -176,36 +193,24 @@ impl Refs { } } -fn find_refs_in_mod( - ctx: &AssistContext<'_>, - expandable: Expandable, - visible_from: Module, -) -> Option { - if !is_expandable_visible_from(ctx, &expandable, visible_from) { - return None; - } - +fn find_refs_in_mod(ctx: &AssistContext<'_>, expandable: Expandable, visible_from: Module) -> Refs { match expandable { Expandable::Module(module) => { let module_scope = module.scope(ctx.db(), Some(visible_from)); let refs = module_scope.into_iter().filter_map(|(n, d)| Ref::from_scope_def(n, d)).collect(); - Some(Refs(refs)) + Refs(refs) } - Expandable::Enum(enm) => Some(Refs( + Expandable::Enum(enm) => Refs( enm.variants(ctx.db()) .into_iter() .map(|v| Ref { visible_name: v.name(ctx.db()), def: Definition::Variant(v) }) .collect(), - )), + ), } } -fn is_expandable_visible_from( - ctx: &AssistContext<'_>, - expandable: &Expandable, - from: Module, -) -> bool { +fn is_visible_from(ctx: &AssistContext<'_>, expandable: &Expandable, from: Module) -> bool { fn is_mod_visible_from(ctx: &AssistContext<'_>, module: Module, from: Module) -> bool { match module.parent(ctx.db()) { Some(parent) => { @@ -246,41 +251,29 @@ fn is_expandable_visible_from( // use foo::*$0; // use baz::Baz; // ↑ --------------- -fn find_imported_defs(ctx: &AssistContext<'_>, star: SyntaxToken) -> Option> { - let parent_use_item_syntax = star.parent_ancestors().find_map(|n| { - if ast::Use::can_cast(n.kind()) { - Some(n) - } else { - None - } - })?; - - Some( - [Direction::Prev, Direction::Next] - .into_iter() - .flat_map(|dir| { - parent_use_item_syntax - .siblings(dir.to_owned()) - .filter(|n| ast::Use::can_cast(n.kind())) - }) - .flat_map(|n| n.descendants().filter_map(ast::NameRef::cast)) - .filter_map(|r| match NameRefClass::classify(&ctx.sema, &r)? { - NameRefClass::Definition( - def @ (Definition::Macro(_) - | Definition::Module(_) - | Definition::Function(_) - | Definition::Adt(_) - | Definition::Variant(_) - | Definition::Const(_) - | Definition::Static(_) - | Definition::Trait(_) - | Definition::TypeAlias(_)), - _, - ) => Some(def), - _ => None, - }) - .collect(), - ) +fn find_imported_defs(ctx: &AssistContext<'_>, use_item: Use) -> Vec { + [Direction::Prev, Direction::Next] + .into_iter() + .flat_map(|dir| { + use_item.syntax().siblings(dir.to_owned()).filter(|n| ast::Use::can_cast(n.kind())) + }) + .flat_map(|n| n.descendants().filter_map(ast::NameRef::cast)) + .filter_map(|r| match NameRefClass::classify(&ctx.sema, &r)? { + NameRefClass::Definition( + def @ (Definition::Macro(_) + | Definition::Module(_) + | Definition::Function(_) + | Definition::Adt(_) + | Definition::Variant(_) + | Definition::Const(_) + | Definition::Static(_) + | Definition::Trait(_) + | Definition::TypeAlias(_)), + _, + ) => Some(def), + _ => None, + }) + .collect() } fn find_names_to_import( From 12530066a26262621616db9d53ed5d3b3872b606 Mon Sep 17 00:00:00 2001 From: Olivier FAURE Date: Sat, 15 Feb 2025 16:07:33 +0100 Subject: [PATCH 51/75] Implement expand_glob_reexport assist --- .../src/handlers/expand_glob_import.rs | 226 ++++++++++++++++-- .../crates/ide-assists/src/lib.rs | 1 + 2 files changed, 208 insertions(+), 19 deletions(-) diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/expand_glob_import.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/expand_glob_import.rs index ea82bdc902671..0b95d6177f904 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/expand_glob_import.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/expand_glob_import.rs @@ -7,7 +7,7 @@ use ide_db::{ }; use stdx::never; use syntax::{ - ast::{self, make, Use, UseTree}, + ast::{self, make, Use, UseTree, VisibilityKind}, ted, AstNode, Direction, SyntaxNode, SyntaxToken, T, }; @@ -65,7 +65,76 @@ pub(crate) fn expand_glob_import(acc: &mut Assists, ctx: &AssistContext<'_>) -> "Expand glob import", target.text_range(), |builder| { - build_expanded_import(ctx, builder, use_tree, use_item, target_module, current_module) + build_expanded_import( + ctx, + builder, + use_tree, + use_item, + target_module, + current_module, + false, + ) + }, + ) +} + +// Assist: expand_glob_reexport +// +// Expands non-private glob imports. +// +// ``` +// mod foo { +// pub struct Bar; +// pub struct Baz; +// } +// +// pub use foo::*$0; +// ``` +// -> +// ``` +// mod foo { +// pub struct Bar; +// pub struct Baz; +// } +// +// pub use foo::{Bar, Baz}; +// ``` +pub(crate) fn expand_glob_reexport(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option<()> { + let star = ctx.find_token_syntax_at_offset(T![*])?; + let use_tree = star.parent().and_then(ast::UseTree::cast)?; + let use_item = star.parent_ancestors().find_map(ast::Use::cast)?; + let (parent, mod_path) = find_parent_and_path(&star)?; + let target_module = match ctx.sema.resolve_path(&mod_path)? { + PathResolution::Def(ModuleDef::Module(it)) => Expandable::Module(it), + PathResolution::Def(ModuleDef::Adt(hir::Adt::Enum(e))) => Expandable::Enum(e), + _ => return None, + }; + + let current_scope = ctx.sema.scope(&star.parent()?)?; + let current_module = current_scope.module(); + + if let VisibilityKind::PubSelf = get_export_visibility_kind(&use_item) { + return None; + } + if !is_visible_from(ctx, &target_module, current_module) { + return None; + } + + let target = parent.either(|n| n.syntax().clone(), |n| n.syntax().clone()); + acc.add( + AssistId("expand_glob_reexport", AssistKind::RefactorRewrite), + "Expand glob reexport", + target.text_range(), + |builder| { + build_expanded_import( + ctx, + builder, + use_tree, + use_item, + target_module, + current_module, + true, + ) }, ) } @@ -77,13 +146,27 @@ fn build_expanded_import( use_item: Use, target_module: Expandable, current_module: Module, + reexport_public_items: bool, ) { - let refs_in_target = find_refs_in_mod(ctx, target_module, current_module); + let (must_be_pub, visible_from) = if !reexport_public_items { + (false, current_module) + } else { + match get_export_visibility_kind(&use_item) { + VisibilityKind::Pub => (true, current_module.krate().root_module()), + VisibilityKind::PubCrate => (false, current_module.krate().root_module()), + _ => (false, current_module), + } + }; + + let refs_in_target = find_refs_in_mod(ctx, target_module, visible_from, must_be_pub); let imported_defs = find_imported_defs(ctx, use_item); + let filtered_defs = + if reexport_public_items { refs_in_target } else { refs_in_target.used_refs(ctx) }; + let use_tree = builder.make_mut(use_tree); - let names_to_import = find_names_to_import(ctx, refs_in_target, imported_defs); + let names_to_import = find_names_to_import(filtered_defs, imported_defs); let expanded = make::use_tree_list(names_to_import.iter().map(|n| { let path = make::ext::ident_path( &n.display(ctx.db(), current_module.krate().edition(ctx.db())).to_string(), @@ -110,6 +193,21 @@ fn build_expanded_import( } } +fn get_export_visibility_kind(use_item: &Use) -> VisibilityKind { + use syntax::ast::HasVisibility as _; + match use_item.visibility() { + Some(vis) => match vis.kind() { + VisibilityKind::PubCrate => VisibilityKind::PubCrate, + VisibilityKind::Pub => VisibilityKind::Pub, + VisibilityKind::PubSelf => VisibilityKind::PubSelf, + // We don't handle pub(in ...) and pub(super) yet + VisibilityKind::In(_) => VisibilityKind::PubSelf, + VisibilityKind::PubSuper => VisibilityKind::PubSelf, + }, + None => VisibilityKind::PubSelf, + } +} + enum Expandable { Module(Module), Enum(Enum), @@ -147,14 +245,17 @@ struct Ref { // could be alias visible_name: Name, def: Definition, + is_pub: bool, } impl Ref { - fn from_scope_def(name: Name, scope_def: ScopeDef) -> Option { + fn from_scope_def(ctx: &AssistContext<'_>, name: Name, scope_def: ScopeDef) -> Option { match scope_def { - ScopeDef::ModuleDef(def) => { - Some(Ref { visible_name: name, def: Definition::from(def) }) - } + ScopeDef::ModuleDef(def) => Some(Ref { + visible_name: name, + def: Definition::from(def), + is_pub: matches!(def.visibility(ctx.db()), hir::Visibility::Public), + }), _ => None, } } @@ -193,18 +294,30 @@ impl Refs { } } -fn find_refs_in_mod(ctx: &AssistContext<'_>, expandable: Expandable, visible_from: Module) -> Refs { +fn find_refs_in_mod( + ctx: &AssistContext<'_>, + expandable: Expandable, + visible_from: Module, + must_be_pub: bool, +) -> Refs { match expandable { Expandable::Module(module) => { let module_scope = module.scope(ctx.db(), Some(visible_from)); - let refs = - module_scope.into_iter().filter_map(|(n, d)| Ref::from_scope_def(n, d)).collect(); + let refs = module_scope + .into_iter() + .filter_map(|(n, d)| Ref::from_scope_def(ctx, n, d)) + .filter(|r| !must_be_pub || r.is_pub) + .collect(); Refs(refs) } Expandable::Enum(enm) => Refs( enm.variants(ctx.db()) .into_iter() - .map(|v| Ref { visible_name: v.name(ctx.db()), def: Definition::Variant(v) }) + .map(|v| Ref { + visible_name: v.name(ctx.db()), + def: Definition::Variant(v), + is_pub: true, + }) .collect(), ), } @@ -276,13 +389,9 @@ fn find_imported_defs(ctx: &AssistContext<'_>, use_item: Use) -> Vec .collect() } -fn find_names_to_import( - ctx: &AssistContext<'_>, - refs_in_target: Refs, - imported_defs: Vec, -) -> Vec { - let used_refs = refs_in_target.used_refs(ctx).filter_out_by_defs(imported_defs); - used_refs.0.iter().map(|r| r.visible_name.clone()).collect() +fn find_names_to_import(refs_in_target: Refs, imported_defs: Vec) -> Vec { + let final_refs = refs_in_target.filter_out_by_defs(imported_defs); + final_refs.0.iter().map(|r| r.visible_name.clone()).collect() } #[cfg(test)] @@ -1029,4 +1138,83 @@ mod abc { }"#, ) } + + #[test] + fn expanding_glob_reexport() { + check_assist( + expand_glob_reexport, + r" +mod foo { + pub struct Bar; + pub struct Baz; + struct Qux; + + pub fn f() {} + + pub(crate) fn g() {} + pub(self) fn h() {} +} + +pub use foo::*$0; +", + r" +mod foo { + pub struct Bar; + pub struct Baz; + struct Qux; + + pub fn f() {} + + pub(crate) fn g() {} + pub(self) fn h() {} +} + +pub use foo::{Bar, Baz, f}; +", + ) + } + + #[test] + fn expanding_recursive_glob_reexport() { + check_assist( + expand_glob_reexport, + r" +mod foo { + pub use bar::*; + mod bar { + pub struct Bar; + pub struct Baz; + } +} + +pub use foo::*$0; +", + r" +mod foo { + pub use bar::*; + mod bar { + pub struct Bar; + pub struct Baz; + } +} + +pub use foo::{Bar, Baz}; +", + ) + } + + #[test] + fn expanding_reexport_is_not_applicable_for_private_import() { + check_assist_not_applicable( + expand_glob_reexport, + r" +mod foo { + pub struct Bar; + pub struct Baz; +} + +use foo::*$0; +", + ); + } } diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/lib.rs b/src/tools/rust-analyzer/crates/ide-assists/src/lib.rs index 5c95b25f28ddf..179742f91b4dc 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/lib.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/lib.rs @@ -270,6 +270,7 @@ mod handlers { destructure_tuple_binding::destructure_tuple_binding, destructure_struct_binding::destructure_struct_binding, expand_glob_import::expand_glob_import, + expand_glob_import::expand_glob_reexport, explicit_enum_discriminant::explicit_enum_discriminant, extract_expressions_from_format_string::extract_expressions_from_format_string, extract_struct_from_enum_variant::extract_struct_from_enum_variant, From 4c7b6099ca4eaad4f83280570673e79f70429ed4 Mon Sep 17 00:00:00 2001 From: Shoyu Vanilla Date: Fri, 14 Feb 2025 02:38:11 +0900 Subject: [PATCH 52/75] Temporarily ignore tests with comments --- .../ide-assists/src/handlers/add_missing_match_arms.rs | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/add_missing_match_arms.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/add_missing_match_arms.rs index a9a2875a60c1d..4a9e2256e9b0d 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/add_missing_match_arms.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/add_missing_match_arms.rs @@ -1375,6 +1375,9 @@ fn main() { ); } + // FIXME: Preserving comments is quite hard in the current transitional syntax editing model. + // Once we migrate to new trivia model addressed in #6854, remove the ignore attribute. + #[ignore] #[test] fn add_missing_match_arms_preserves_comments() { check_assist( @@ -1403,6 +1406,9 @@ fn foo(a: A) { ); } + // FIXME: Preserving comments is quite hard in the current transitional syntax editing model. + // Once we migrate to new trivia model addressed in #6854, remove the ignore attribute. + #[ignore] #[test] fn add_missing_match_arms_preserves_comments_empty() { check_assist( From 824b18248c72a8d9fa0fd8ad57b1292cc079fb9f Mon Sep 17 00:00:00 2001 From: Olivier FAURE Date: Sat, 15 Feb 2025 16:26:28 +0100 Subject: [PATCH 53/75] Re-generate doctests --- .../crates/ide-assists/src/tests/generated.rs | 23 +++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/tests/generated.rs b/src/tools/rust-analyzer/crates/ide-assists/src/tests/generated.rs index 4b0fa704a22ba..0662527a387da 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/tests/generated.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/tests/generated.rs @@ -909,6 +909,29 @@ fn qux(bar: Bar, baz: Baz) {} ) } +#[test] +fn doctest_expand_glob_reexport() { + check_doc_test( + "expand_glob_reexport", + r#####" +mod foo { + pub struct Bar; + pub struct Baz; +} + +pub use foo::*$0; +"#####, + r#####" +mod foo { + pub struct Bar; + pub struct Baz; +} + +pub use foo::{Bar, Baz}; +"#####, + ) +} + #[test] fn doctest_explicit_enum_discriminant() { check_doc_test( From af804d23e204ffaec33aa7dfcd17cc31f082a559 Mon Sep 17 00:00:00 2001 From: Lukas Wirth Date: Sun, 16 Feb 2025 10:51:58 +0100 Subject: [PATCH 54/75] Set `RUSTUP_TOOLCHAIN` when loading sysroot workspace --- .../crates/project-model/src/cargo_workspace.rs | 3 +++ src/tools/rust-analyzer/crates/project-model/src/sysroot.rs | 5 +++-- 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/src/tools/rust-analyzer/crates/project-model/src/cargo_workspace.rs b/src/tools/rust-analyzer/crates/project-model/src/cargo_workspace.rs index e4a6113462054..b5f4e43a115d7 100644 --- a/src/tools/rust-analyzer/crates/project-model/src/cargo_workspace.rs +++ b/src/tools/rust-analyzer/crates/project-model/src/cargo_workspace.rs @@ -277,6 +277,9 @@ impl CargoWorkspace { /// Fetches the metadata for the given `cargo_toml` manifest. /// A successful result may contain another metadata error if the initial fetching failed but /// the `--no-deps` retry succeeded. + /// + /// The sysroot is used to set the `RUSTUP_TOOLCHAIN` env var when invoking cargo + /// to ensure that the rustup proxy uses the correct toolchain. pub fn fetch_metadata( cargo_toml: &ManifestPath, current_dir: &AbsPath, diff --git a/src/tools/rust-analyzer/crates/project-model/src/sysroot.rs b/src/tools/rust-analyzer/crates/project-model/src/sysroot.rs index 510c18dd147ef..544ba43ba66f3 100644 --- a/src/tools/rust-analyzer/crates/project-model/src/sysroot.rs +++ b/src/tools/rust-analyzer/crates/project-model/src/sysroot.rs @@ -247,7 +247,7 @@ impl Sysroot { let library_manifest = ManifestPath::try_from(src_root.join("Cargo.toml")).unwrap(); if fs::metadata(&library_manifest).is_ok() { if let Some(loaded) = - Self::load_library_via_cargo(library_manifest, src_root, cargo_config) + self.load_library_via_cargo(library_manifest, src_root, cargo_config) { return Some(loaded); } @@ -326,6 +326,7 @@ impl Sysroot { } fn load_library_via_cargo( + &self, library_manifest: ManifestPath, rust_lib_src_dir: &AbsPathBuf, cargo_config: &CargoMetadataConfig, @@ -342,7 +343,7 @@ impl Sysroot { &library_manifest, rust_lib_src_dir, &cargo_config, - &Sysroot::empty(), + self, // Make sure we never attempt to write to the sysroot true, &|_| (), From 930918d827f2598098ec8c6bf9aaa5a1e061fb3b Mon Sep 17 00:00:00 2001 From: Lukas Wirth Date: Sun, 16 Feb 2025 10:51:58 +0100 Subject: [PATCH 55/75] Improve error recovery when method-calling an assoc function --- .../rust-analyzer/crates/hir-ty/src/infer.rs | 2 +- .../crates/hir-ty/src/infer/expr.rs | 91 ++++++++++++------- .../crates/hir-ty/src/tests/diagnostics.rs | 33 ++++++- .../hir-ty/src/tests/method_resolution.rs | 2 +- .../crates/hir/src/diagnostics.rs | 8 +- .../src/handlers/unresolved_method.rs | 47 +++++----- 6 files changed, 112 insertions(+), 71 deletions(-) diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/infer.rs b/src/tools/rust-analyzer/crates/hir-ty/src/infer.rs index 9f20117bf14fc..a8cd971b05796 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/infer.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/infer.rs @@ -236,7 +236,7 @@ pub enum InferenceDiagnostic { name: Name, /// Contains the type the field resolves to field_with_same_name: Option, - assoc_func_with_same_name: Option, + assoc_func_with_same_name: Option, }, UnresolvedAssocItem { id: ExprOrPatId, diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/infer/expr.rs b/src/tools/rust-analyzer/crates/hir-ty/src/infer/expr.rs index 41d739a078e66..bff88143475c0 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/infer/expr.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/infer/expr.rs @@ -1922,21 +1922,32 @@ impl InferenceContext<'_> { VisibleFromModule::Filter(self.resolver.module()), method_name, ); - let (receiver_ty, method_ty, substs) = match resolved { + match resolved { Some((adjust, func, visible)) => { - let (ty, adjustments) = adjust.apply(&mut self.table, receiver_ty); - let generics = generics(self.db.upcast(), func.into()); - let substs = self.substs_for_method_call(generics, generic_args); - self.write_expr_adj(receiver, adjustments); - self.write_method_resolution(tgt_expr, func, substs.clone()); if !visible { self.push_diagnostic(InferenceDiagnostic::PrivateAssocItem { id: tgt_expr.into(), item: func.into(), }) } - (ty, self.db.value_ty(func.into()).unwrap(), substs) + + let (ty, adjustments) = adjust.apply(&mut self.table, receiver_ty); + self.write_expr_adj(receiver, adjustments); + + let generics = generics(self.db.upcast(), func.into()); + let substs = self.substs_for_method_call(generics, generic_args); + self.write_method_resolution(tgt_expr, func, substs.clone()); + self.check_method_call( + tgt_expr, + args, + self.db.value_ty(func.into()).expect("we have a function def"), + substs, + ty, + expected, + ) } + // Failed to resolve, report diagnostic and try to resolve as call to field access or + // assoc function None => { let field_with_same_name_exists = match self.lookup_field(&receiver_ty, method_name) { @@ -1956,12 +1967,11 @@ impl InferenceContext<'_> { VisibleFromModule::Filter(self.resolver.module()), Some(method_name), method_resolution::LookupMode::Path, - |_ty, item, visible| { - if visible { - Some(item) - } else { - None + |_ty, item, visible| match item { + hir_def::AssocItemId::FunctionId(function_id) if visible => { + Some(function_id) } + _ => None, }, ); @@ -1973,31 +1983,41 @@ impl InferenceContext<'_> { assoc_func_with_same_name, }); - return match field_with_same_name_exists { - Some(field_ty) => match field_ty.callable_sig(self.db) { - Some(sig) => self.check_call( - tgt_expr, - args, - field_ty, - sig.params(), - sig.ret().clone(), - &[], - true, - expected, - ), - None => { - self.check_call_arguments(tgt_expr, args, &[], &[], &[], true); - field_ty - } - }, + let recovered = match assoc_func_with_same_name { + Some(f) => { + let generics = generics(self.db.upcast(), f.into()); + let substs = self.substs_for_method_call(generics, generic_args); + let f = self + .db + .value_ty(f.into()) + .expect("we have a function def") + .substitute(Interner, &substs); + let sig = f.callable_sig(self.db).expect("we have a function def"); + Some((f, sig, true)) + } + None => field_with_same_name_exists.and_then(|field_ty| { + let callable_sig = field_ty.callable_sig(self.db)?; + Some((field_ty, callable_sig, false)) + }), + }; + match recovered { + Some((callee_ty, sig, strip_first)) => self.check_call( + tgt_expr, + args, + callee_ty, + sig.params().get(strip_first as usize..).unwrap_or(&[]), + sig.ret().clone(), + &[], + true, + expected, + ), None => { self.check_call_arguments(tgt_expr, args, &[], &[], &[], true); self.err_ty() } - }; + } } - }; - self.check_method_call(tgt_expr, args, method_ty, substs, receiver_ty, expected) + } } fn check_method_call( @@ -2067,9 +2087,10 @@ impl InferenceContext<'_> { expected_inputs: &[Ty], param_tys: &[Ty], skip_indices: &[u32], - is_varargs: bool, + ignore_arg_param_mismatch: bool, ) { - let arg_count_mismatch = args.len() != param_tys.len() + skip_indices.len() && !is_varargs; + let arg_count_mismatch = + !ignore_arg_param_mismatch && args.len() != param_tys.len() + skip_indices.len(); if arg_count_mismatch { self.push_diagnostic(InferenceDiagnostic::MismatchedArgCount { call_expr: expr, @@ -2098,7 +2119,7 @@ impl InferenceContext<'_> { continue; } - while skip_indices.peek().is_some_and(|i| *i < idx as u32) { + while skip_indices.peek().is_some_and(|&i| i < idx as u32) { skip_indices.next(); } if skip_indices.peek().copied() == Some(idx as u32) { diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/tests/diagnostics.rs b/src/tools/rust-analyzer/crates/hir-ty/src/tests/diagnostics.rs index d0d31bf2a5a69..855034117c0d7 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/tests/diagnostics.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/tests/diagnostics.rs @@ -159,18 +159,18 @@ fn method_call_on_field() { check( r#" struct S { - field: fn() -> u32, + field: fn(f32) -> u32, field2: u32 } fn main() { - let s = S { field: || 0, field2: 0 }; + let s = S { field: |_| 0, field2: 0 }; s.field(0); - // ^ type: i32 + // ^ expected f32, got i32 // ^^^^^^^^^^ type: u32 s.field2(0); // ^ type: i32 - // ^^^^^^^^^^^ type: u32 + // ^^^^^^^^^^^ type: {unknown} s.not_a_field(0); // ^ type: i32 // ^^^^^^^^^^^^^^^^ type: {unknown} @@ -178,3 +178,28 @@ fn main() { "#, ); } + +#[test] +fn method_call_on_assoc() { + check( + r#" +struct S; + +impl S { + fn not_a_method() -> f32 { 0.0 } + fn not_a_method2(this: Self, param: f32) -> Self { this } + fn not_a_method3(param: f32) -> Self { S } +} + +fn main() { + S.not_a_method(0); + // ^^^^^^^^^^^^^^^^^ type: f32 + S.not_a_method2(0); + // ^ expected f32, got i32 + // ^^^^^^^^^^^^^^^^^^ type: S + S.not_a_method3(0); + // ^^^^^^^^^^^^^^^^^^ type: S +} +"#, + ); +} diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/tests/method_resolution.rs b/src/tools/rust-analyzer/crates/hir-ty/src/tests/method_resolution.rs index e5f791ea6ffcd..3a258ecad10a6 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/tests/method_resolution.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/tests/method_resolution.rs @@ -1210,7 +1210,7 @@ impl Slice { fn main() { let foo: Slice; foo.into_vec(); // we shouldn't crash on this at least -} //^^^^^^^^^^^^^^ {unknown} +} //^^^^^^^^^^^^^^ () "#, ); } diff --git a/src/tools/rust-analyzer/crates/hir/src/diagnostics.rs b/src/tools/rust-analyzer/crates/hir/src/diagnostics.rs index 5876529df96a8..307673f52c7d7 100644 --- a/src/tools/rust-analyzer/crates/hir/src/diagnostics.rs +++ b/src/tools/rust-analyzer/crates/hir/src/diagnostics.rs @@ -10,7 +10,7 @@ use hir_def::{ hir::ExprOrPatId, path::{hir_segment_to_ast_segment, ModPath}, type_ref::TypesSourceMap, - AssocItemId, DefWithBodyId, SyntheticSyntax, + DefWithBodyId, SyntheticSyntax, }; use hir_expand::{name::Name, HirFileId, InFile}; use hir_ty::{ @@ -25,7 +25,7 @@ use syntax::{ }; use triomphe::Arc; -use crate::{AssocItem, Field, Local, Trait, Type}; +use crate::{AssocItem, Field, Function, Local, Trait, Type}; pub use hir_def::VariantId; pub use hir_ty::{ @@ -253,7 +253,7 @@ pub struct UnresolvedMethodCall { pub receiver: Type, pub name: Name, pub field_with_same_name: Option, - pub assoc_func_with_same_name: Option, + pub assoc_func_with_same_name: Option, } #[derive(Debug)] @@ -623,7 +623,7 @@ impl AnyDiagnostic { field_with_same_name: field_with_same_name .clone() .map(|ty| Type::new(db, def, ty)), - assoc_func_with_same_name: *assoc_func_with_same_name, + assoc_func_with_same_name: assoc_func_with_same_name.map(Into::into), } .into() } diff --git a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/unresolved_method.rs b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/unresolved_method.rs index dd1b593e8f6e6..e4de107249bd5 100644 --- a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/unresolved_method.rs +++ b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/unresolved_method.rs @@ -1,4 +1,4 @@ -use hir::{db::ExpandDatabase, AssocItem, FileRange, HirDisplay, InFile}; +use hir::{db::ExpandDatabase, FileRange, HirDisplay, InFile}; use ide_db::text_edit::TextEdit; use ide_db::{ assists::{Assist, AssistId, AssistKind}, @@ -112,7 +112,7 @@ fn field_fix( } fn assoc_func_fix(ctx: &DiagnosticsContext<'_>, d: &hir::UnresolvedMethodCall) -> Option { - if let Some(assoc_item_id) = d.assoc_func_with_same_name { + if let Some(f) = d.assoc_func_with_same_name { let db = ctx.sema.db; let expr_ptr = &d.expr; @@ -127,30 +127,25 @@ fn assoc_func_fix(ctx: &DiagnosticsContext<'_>, d: &hir::UnresolvedMethodCall) - let receiver = call.receiver()?; let receiver_type = &ctx.sema.type_of_expr(&receiver)?.original; - let need_to_take_receiver_as_first_arg = match hir::AssocItem::from(assoc_item_id) { - AssocItem::Function(f) => { - let assoc_fn_params = f.assoc_fn_params(db); - if assoc_fn_params.is_empty() { - false - } else { - assoc_fn_params - .first() - .map(|first_arg| { - // For generic type, say `Box`, take `Box::into_raw(b: Self)` as example, - // type of `b` is `Self`, which is `Box`, containing unspecified generics. - // However, type of `receiver` is specified, it could be `Box` or something like that, - // so `first_arg.ty() == receiver_type` evaluate to `false` here. - // Here add `first_arg.ty().as_adt() == receiver_type.as_adt()` as guard, - // apply `.as_adt()` over `Box` or `Box` gets `Box`, so we get `true` here. - - // FIXME: it fails when type of `b` is `Box` with other generic param different from `receiver` - first_arg.ty() == receiver_type - || first_arg.ty().as_adt() == receiver_type.as_adt() - }) - .unwrap_or(false) - } - } - _ => false, + let assoc_fn_params = f.assoc_fn_params(db); + let need_to_take_receiver_as_first_arg = if assoc_fn_params.is_empty() { + false + } else { + assoc_fn_params + .first() + .map(|first_arg| { + // For generic type, say `Box`, take `Box::into_raw(b: Self)` as example, + // type of `b` is `Self`, which is `Box`, containing unspecified generics. + // However, type of `receiver` is specified, it could be `Box` or something like that, + // so `first_arg.ty() == receiver_type` evaluate to `false` here. + // Here add `first_arg.ty().as_adt() == receiver_type.as_adt()` as guard, + // apply `.as_adt()` over `Box` or `Box` gets `Box`, so we get `true` here. + + // FIXME: it fails when type of `b` is `Box` with other generic param different from `receiver` + first_arg.ty() == receiver_type + || first_arg.ty().as_adt() == receiver_type.as_adt() + }) + .unwrap_or(false) }; let mut receiver_type_adt_name = From b54269c2b1c858a489ea588b3679bd21f0d06bbb Mon Sep 17 00:00:00 2001 From: Lukas Wirth Date: Sun, 16 Feb 2025 12:20:41 +0100 Subject: [PATCH 56/75] fix: Stabilize sort order of runnables --- .../crates/ide/src/annotations.rs | 74 +++++++++++-------- .../rust-analyzer/crates/ide/src/runnables.rs | 4 +- 2 files changed, 45 insertions(+), 33 deletions(-) diff --git a/src/tools/rust-analyzer/crates/ide/src/annotations.rs b/src/tools/rust-analyzer/crates/ide/src/annotations.rs index 006e6e8246e1c..a0add4741f324 100644 --- a/src/tools/rust-analyzer/crates/ide/src/annotations.rs +++ b/src/tools/rust-analyzer/crates/ide/src/annotations.rs @@ -1,6 +1,6 @@ use hir::{HasSource, InFile, InRealFile, Semantics}; use ide_db::{ - defs::Definition, helpers::visit_file_defs, FileId, FilePosition, FileRange, FxHashSet, + defs::Definition, helpers::visit_file_defs, FileId, FilePosition, FileRange, FxIndexSet, RootDatabase, }; use itertools::Itertools; @@ -55,7 +55,7 @@ pub(crate) fn annotations( config: &AnnotationConfig, file_id: FileId, ) -> Vec { - let mut annotations = FxHashSet::default(); + let mut annotations = FxIndexSet::default(); if config.annotate_runnables { for runnable in runnables(db, file_id) { @@ -170,7 +170,19 @@ pub(crate) fn annotations( })); } - annotations.into_iter().sorted_by_key(|a| (a.range.start(), a.range.end())).collect() + annotations + .into_iter() + .sorted_by_key(|a| { + ( + a.range.start(), + a.range.end(), + match &a.kind { + AnnotationKind::Runnable(runnable) => Some(runnable.nav.name.clone()), + _ => None, + }, + ) + }) + .collect() } pub(crate) fn resolve_annotation(db: &RootDatabase, mut annotation: Annotation) -> Annotation { @@ -535,6 +547,20 @@ fn main() { ), }, }, + Annotation { + range: 69..73, + kind: HasReferences { + pos: FilePositionWrapper { + file_id: FileId( + 0, + ), + offset: 69, + }, + data: Some( + [], + ), + }, + }, Annotation { range: 69..73, kind: Runnable( @@ -559,20 +585,6 @@ fn main() { }, ), }, - Annotation { - range: 69..73, - kind: HasReferences { - pos: FilePositionWrapper { - file_id: FileId( - 0, - ), - offset: 69, - }, - data: Some( - [], - ), - }, - }, ] "#]], ); @@ -717,6 +729,20 @@ fn main() { ), }, }, + Annotation { + range: 61..65, + kind: HasReferences { + pos: FilePositionWrapper { + file_id: FileId( + 0, + ), + offset: 61, + }, + data: Some( + [], + ), + }, + }, Annotation { range: 61..65, kind: Runnable( @@ -741,20 +767,6 @@ fn main() { }, ), }, - Annotation { - range: 61..65, - kind: HasReferences { - pos: FilePositionWrapper { - file_id: FileId( - 0, - ), - offset: 61, - }, - data: Some( - [], - ), - }, - }, ] "#]], ); diff --git a/src/tools/rust-analyzer/crates/ide/src/runnables.rs b/src/tools/rust-analyzer/crates/ide/src/runnables.rs index 78c9f2309a0d4..16dd039eabbe5 100644 --- a/src/tools/rust-analyzer/crates/ide/src/runnables.rs +++ b/src/tools/rust-analyzer/crates/ide/src/runnables.rs @@ -13,7 +13,7 @@ use ide_db::{ documentation::docs_from_attrs, helpers::visit_file_defs, search::{FileReferenceNode, SearchScope}, - FilePosition, FxHashMap, FxHashSet, RootDatabase, SymbolKind, + FilePosition, FxHashMap, FxHashSet, FxIndexMap, RootDatabase, SymbolKind, }; use itertools::Itertools; use smallvec::SmallVec; @@ -130,7 +130,7 @@ pub(crate) fn runnables(db: &RootDatabase, file_id: FileId) -> Vec { let mut res = Vec::new(); // Record all runnables that come from macro expansions here instead. // In case an expansion creates multiple runnables we want to name them to avoid emitting a bunch of equally named runnables. - let mut in_macro_expansion = FxHashMap::>::default(); + let mut in_macro_expansion = FxIndexMap::>::default(); let mut add_opt = |runnable: Option, def| { if let Some(runnable) = runnable.filter(|runnable| runnable.nav.file_id == file_id) { if let Some(def) = def { From c5f49cf07194185a02a5dd353d3125775fe5ed82 Mon Sep 17 00:00:00 2001 From: Lukas Wirth Date: Sun, 16 Feb 2025 13:11:50 +0100 Subject: [PATCH 57/75] fix: Stabilize sort order of `related_tests` --- .../rust-analyzer/crates/ide/src/runnables.rs | 59 ++++++++++--------- .../ide/src/syntax_highlighting/tests.rs | 3 + 2 files changed, 35 insertions(+), 27 deletions(-) diff --git a/src/tools/rust-analyzer/crates/ide/src/runnables.rs b/src/tools/rust-analyzer/crates/ide/src/runnables.rs index 16dd039eabbe5..9e3b70fa8eae2 100644 --- a/src/tools/rust-analyzer/crates/ide/src/runnables.rs +++ b/src/tools/rust-analyzer/crates/ide/src/runnables.rs @@ -4,8 +4,8 @@ use arrayvec::ArrayVec; use ast::HasName; use cfg::{CfgAtom, CfgExpr}; use hir::{ - db::HirDatabase, sym, AsAssocItem, AttrsWithOwner, HasAttrs, HasCrate, HasSource, HirFileIdExt, - ModPath, Name, PathKind, Semantics, Symbol, + db::HirDatabase, sym, symbols::FxIndexSet, AsAssocItem, AttrsWithOwner, HasAttrs, HasCrate, + HasSource, HirFileIdExt, ModPath, Name, PathKind, Semantics, Symbol, }; use ide_assists::utils::{has_test_related_attribute, test_related_attribute_syn}; use ide_db::{ @@ -13,7 +13,7 @@ use ide_db::{ documentation::docs_from_attrs, helpers::visit_file_defs, search::{FileReferenceNode, SearchScope}, - FilePosition, FxHashMap, FxHashSet, FxIndexMap, RootDatabase, SymbolKind, + FilePosition, FxHashMap, FxIndexMap, RootDatabase, SymbolKind, }; use itertools::Itertools; use smallvec::SmallVec; @@ -182,20 +182,7 @@ pub(crate) fn runnables(db: &RootDatabase, file_id: FileId) -> Vec { r }) })); - res.sort_by(|Runnable { nav, kind, .. }, Runnable { nav: nav_b, kind: kind_b, .. }| { - // full_range.start < focus_range.start < name, should give us a decent unique ordering - nav.full_range - .start() - .cmp(&nav_b.full_range.start()) - .then_with(|| { - let t_0 = || TextSize::from(0); - nav.focus_range - .map_or_else(t_0, |it| it.start()) - .cmp(&nav_b.focus_range.map_or_else(t_0, |it| it.start())) - }) - .then_with(|| kind.disc().cmp(&kind_b.disc())) - .then_with(|| nav.name.cmp(&nav_b.name)) - }); + res.sort_by(cmp_runnables); res } @@ -215,12 +202,30 @@ pub(crate) fn related_tests( search_scope: Option, ) -> Vec { let sema = Semantics::new(db); - let mut res: FxHashSet = FxHashSet::default(); + let mut res: FxIndexSet = FxIndexSet::default(); let syntax = sema.parse_guess_edition(position.file_id).syntax().clone(); find_related_tests(&sema, &syntax, position, search_scope, &mut res); - res.into_iter().collect() + res.into_iter().sorted_by(cmp_runnables).collect() +} + +fn cmp_runnables( + Runnable { nav, kind, .. }: &Runnable, + Runnable { nav: nav_b, kind: kind_b, .. }: &Runnable, +) -> std::cmp::Ordering { + // full_range.start < focus_range.start < name, should give us a decent unique ordering + nav.full_range + .start() + .cmp(&nav_b.full_range.start()) + .then_with(|| { + let t_0 = || TextSize::from(0); + nav.focus_range + .map_or_else(t_0, |it| it.start()) + .cmp(&nav_b.focus_range.map_or_else(t_0, |it| it.start())) + }) + .then_with(|| kind.disc().cmp(&kind_b.disc())) + .then_with(|| nav.name.cmp(&nav_b.name)) } fn find_related_tests( @@ -228,7 +233,7 @@ fn find_related_tests( syntax: &SyntaxNode, position: FilePosition, search_scope: Option, - tests: &mut FxHashSet, + tests: &mut FxIndexSet, ) { // FIXME: why is this using references::find_defs, this should use ide_db::search let defs = match references::find_defs(sema, syntax, position.offset) { @@ -268,7 +273,7 @@ fn find_related_tests_in_module( syntax: &SyntaxNode, fn_def: &ast::Fn, parent_module: &hir::Module, - tests: &mut FxHashSet, + tests: &mut FxIndexSet, ) { let fn_name = match fn_def.name() { Some(it) => it, @@ -1501,18 +1506,18 @@ mod tests { file_id: FileId( 0, ), - full_range: 121..185, - focus_range: 136..145, - name: "foo2_test", + full_range: 52..115, + focus_range: 67..75, + name: "foo_test", kind: Function, }, NavigationTarget { file_id: FileId( 0, ), - full_range: 52..115, - focus_range: 67..75, - name: "foo_test", + full_range: 121..185, + focus_range: 136..145, + name: "foo2_test", kind: Function, }, ] diff --git a/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/tests.rs b/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/tests.rs index b9520ae2bba27..30b8fa74f81d7 100644 --- a/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/tests.rs +++ b/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/tests.rs @@ -1084,6 +1084,9 @@ pub struct Struct; ); } +// Rainbow highlighting uses a deterministic hash (fxhash) but the hashing does differ +// depending on the pointer width so only runs this on 64-bit targets. +#[cfg(target_pointer_width = "64")] #[test] fn test_rainbow_highlighting() { check_highlighting( From 2e7158b4587a42043c88ab653b305c378b602b76 Mon Sep 17 00:00:00 2001 From: Chayim Refael Friedman Date: Mon, 10 Feb 2025 11:33:02 +0200 Subject: [PATCH 58/75] Refactor path lowering And add a new diagnostic for non-`Fn` parenthesized generic args. Path lowering started to look like a mess, with each function carrying additional parameters for the diagnostic callback (since paths can occur both in type and in expression/pattern position, and their diagnostic handling is different) and the segment index, for the diagnostics report. So I refactored it from stateless functions on `TyLoweringContext` into stateful struct, `PathLoweringContext`, that tracks the process of lowering a path from resolution til assoc types selection. --- .../rust-analyzer/crates/hir-def/src/data.rs | 4 + .../rust-analyzer/crates/hir-def/src/path.rs | 10 +- .../crates/hir-def/src/resolver.rs | 3 +- .../crates/hir-expand/src/name.rs | 4 +- .../rust-analyzer/crates/hir-ty/src/infer.rs | 52 +- .../crates/hir-ty/src/infer/diagnostics.rs | 76 +- .../crates/hir-ty/src/infer/pat.rs | 14 +- .../crates/hir-ty/src/infer/path.rs | 150 +-- .../rust-analyzer/crates/hir-ty/src/lower.rs | 975 ++---------------- .../crates/hir-ty/src/lower/diagnostics.rs | 1 + .../crates/hir-ty/src/lower/path.rs | 911 ++++++++++++++++ .../crates/hir/src/diagnostics.rs | 16 +- ...nthesized_generic_args_without_fn_trait.rs | 59 ++ .../crates/ide-diagnostics/src/lib.rs | 8 +- .../test_data/highlight_general.html | 15 +- .../ide/src/syntax_highlighting/tests.rs | 15 +- .../crates/intern/src/symbol/symbols.rs | 33 +- .../crates/test-utils/src/minicore.rs | 6 + 18 files changed, 1220 insertions(+), 1132 deletions(-) create mode 100644 src/tools/rust-analyzer/crates/hir-ty/src/lower/path.rs create mode 100644 src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/parenthesized_generic_args_without_fn_trait.rs diff --git a/src/tools/rust-analyzer/crates/hir-def/src/data.rs b/src/tools/rust-analyzer/crates/hir-def/src/data.rs index c5bbd4edba9e4..bec662787728c 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/data.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/data.rs @@ -250,6 +250,7 @@ bitflags::bitflags! { const RUSTC_HAS_INCOHERENT_INHERENT_IMPLS = 1 << 3; const SKIP_ARRAY_DURING_METHOD_DISPATCH = 1 << 4; const SKIP_BOXED_SLICE_DURING_METHOD_DISPATCH = 1 << 5; + const RUSTC_PAREN_SUGAR = 1 << 6; } } @@ -294,6 +295,9 @@ impl TraitData { if attrs.by_key(&sym::rustc_has_incoherent_inherent_impls).exists() { flags |= TraitFlags::RUSTC_HAS_INCOHERENT_INHERENT_IMPLS; } + if attrs.by_key(&sym::rustc_paren_sugar).exists() { + flags |= TraitFlags::RUSTC_PAREN_SUGAR; + } let mut skip_array_during_method_dispatch = attrs.by_key(&sym::rustc_skip_array_during_method_dispatch).exists(); diff --git a/src/tools/rust-analyzer/crates/hir-def/src/path.rs b/src/tools/rust-analyzer/crates/hir-def/src/path.rs index e59c37104dd60..e6c2504d07a5a 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/path.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/path.rs @@ -173,10 +173,7 @@ impl Path { segments: path.mod_path().segments(), generic_args: Some(path.generic_args()), }, - Path::LangItem(_, seg) => PathSegments { - segments: seg.as_ref().map_or(&[], |seg| std::slice::from_ref(seg)), - generic_args: None, - }, + Path::LangItem(_, seg) => PathSegments { segments: seg.as_slice(), generic_args: None }, } } @@ -240,6 +237,11 @@ pub struct PathSegment<'a> { pub args_and_bindings: Option<&'a GenericArgs>, } +impl PathSegment<'_> { + pub const MISSING: PathSegment<'static> = + PathSegment { name: &Name::missing(), args_and_bindings: None }; +} + #[derive(Debug, Clone, Copy)] pub struct PathSegments<'a> { segments: &'a [Name], diff --git a/src/tools/rust-analyzer/crates/hir-def/src/resolver.rs b/src/tools/rust-analyzer/crates/hir-def/src/resolver.rs index 7e13ae2f7a1be..9dfb6e3cc4b78 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/resolver.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/resolver.rs @@ -327,8 +327,9 @@ impl Resolver { | LangItemTarget::ImplDef(_) | LangItemTarget::Static(_) => return None, }; + // Remaining segments start from 0 because lang paths have no segments other than the remaining. return Some(( - ResolveValueResult::Partial(type_ns, 1, None), + ResolveValueResult::Partial(type_ns, 0, None), ResolvePathResultPrefixInfo::default(), )); } diff --git a/src/tools/rust-analyzer/crates/hir-expand/src/name.rs b/src/tools/rust-analyzer/crates/hir-expand/src/name.rs index 21e5fb5ef9e1c..0758bd4515ef2 100644 --- a/src/tools/rust-analyzer/crates/hir-expand/src/name.rs +++ b/src/tools/rust-analyzer/crates/hir-expand/src/name.rs @@ -142,8 +142,8 @@ impl Name { /// Ideally, we want a `gensym` semantics for missing names -- each missing /// name is equal only to itself. It's not clear how to implement this in /// salsa though, so we punt on that bit for a moment. - pub fn missing() -> Name { - Name { symbol: sym::MISSING_NAME.clone(), ctx: () } + pub const fn missing() -> Name { + Name { symbol: sym::consts::MISSING_NAME, ctx: () } } /// Returns true if this is a fake name for things missing in the source code. See diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/infer.rs b/src/tools/rust-analyzer/crates/hir-ty/src/infer.rs index cf6905a0b28f1..3ac2d90468f45 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/infer.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/infer.rs @@ -16,7 +16,7 @@ pub(crate) mod cast; pub(crate) mod closure; mod coerce; -mod diagnostics; +pub(crate) mod diagnostics; mod expr; mod mutability; mod pat; @@ -1480,21 +1480,22 @@ impl<'a> InferenceContext<'a> { &self.diagnostics, InferenceTyDiagnosticSource::Body, ); + let mut path_ctx = ctx.at_path(path, node); let (resolution, unresolved) = if value_ns { - let Some(res) = ctx.resolve_path_in_value_ns(path, node, HygieneId::ROOT) else { + let Some(res) = path_ctx.resolve_path_in_value_ns(HygieneId::ROOT) else { return (self.err_ty(), None); }; match res { ResolveValueResult::ValueNs(value, _) => match value { ValueNs::EnumVariantId(var) => { - let substs = ctx.substs_from_path(path, var.into(), true); + let substs = path_ctx.substs_from_path(var.into(), true); drop(ctx); let ty = self.db.ty(var.lookup(self.db.upcast()).parent.into()); let ty = self.insert_type_vars(ty.substitute(Interner, &substs)); return (ty, Some(var.into())); } ValueNs::StructId(strukt) => { - let substs = ctx.substs_from_path(path, strukt.into(), true); + let substs = path_ctx.substs_from_path(strukt.into(), true); drop(ctx); let ty = self.db.ty(strukt.into()); let ty = self.insert_type_vars(ty.substitute(Interner, &substs)); @@ -1509,7 +1510,7 @@ impl<'a> InferenceContext<'a> { ResolveValueResult::Partial(typens, unresolved, _) => (typens, Some(unresolved)), } } else { - match ctx.resolve_path_in_type_ns(path, node) { + match path_ctx.resolve_path_in_type_ns() { Some((it, idx)) => (it, idx), None => return (self.err_ty(), None), } @@ -1520,21 +1521,21 @@ impl<'a> InferenceContext<'a> { }; return match resolution { TypeNs::AdtId(AdtId::StructId(strukt)) => { - let substs = ctx.substs_from_path(path, strukt.into(), true); + let substs = path_ctx.substs_from_path(strukt.into(), true); drop(ctx); let ty = self.db.ty(strukt.into()); let ty = self.insert_type_vars(ty.substitute(Interner, &substs)); forbid_unresolved_segments((ty, Some(strukt.into())), unresolved) } TypeNs::AdtId(AdtId::UnionId(u)) => { - let substs = ctx.substs_from_path(path, u.into(), true); + let substs = path_ctx.substs_from_path(u.into(), true); drop(ctx); let ty = self.db.ty(u.into()); let ty = self.insert_type_vars(ty.substitute(Interner, &substs)); forbid_unresolved_segments((ty, Some(u.into())), unresolved) } TypeNs::EnumVariantId(var) => { - let substs = ctx.substs_from_path(path, var.into(), true); + let substs = path_ctx.substs_from_path(var.into(), true); drop(ctx); let ty = self.db.ty(var.lookup(self.db.upcast()).parent.into()); let ty = self.insert_type_vars(ty.substitute(Interner, &substs)); @@ -1545,31 +1546,32 @@ impl<'a> InferenceContext<'a> { let substs = generics.placeholder_subst(self.db); let mut ty = self.db.impl_self_ty(impl_id).substitute(Interner, &substs); - let Some(mut remaining_idx) = unresolved else { + let Some(remaining_idx) = unresolved else { drop(ctx); return self.resolve_variant_on_alias(ty, None, mod_path); }; let mut remaining_segments = path.segments().skip(remaining_idx); + if remaining_segments.len() >= 2 { + path_ctx.ignore_last_segment(); + } + // We need to try resolving unresolved segments one by one because each may resolve // to a projection, which `TyLoweringContext` cannot handle on its own. let mut tried_resolving_once = false; - while !remaining_segments.is_empty() { - let resolved_segment = path.segments().get(remaining_idx - 1).unwrap(); - let current_segment = remaining_segments.take(1); - + while let Some(current_segment) = remaining_segments.first() { // If we can resolve to an enum variant, it takes priority over associated type // of the same name. if let Some((AdtId::EnumId(id), _)) = ty.as_adt() { let enum_data = self.db.enum_data(id); - let name = current_segment.first().unwrap().name; - if let Some(variant) = enum_data.variant(name) { + if let Some(variant) = enum_data.variant(current_segment.name) { return if remaining_segments.len() == 1 { (ty, Some(variant.into())) } else { // We still have unresolved paths, but enum variants never have // associated types! + // FIXME: Report an error. (self.err_ty(), None) }; } @@ -1578,23 +1580,13 @@ impl<'a> InferenceContext<'a> { if tried_resolving_once { // FIXME: with `inherent_associated_types` this is allowed, but our `lower_partly_resolved_path()` // will need to be updated to err at the correct segment. - // - // We need to stop here because otherwise the segment index passed to `lower_partly_resolved_path()` - // will be incorrect, and that can mess up error reporting. break; } // `lower_partly_resolved_path()` returns `None` as type namespace unless // `remaining_segments` is empty, which is never the case here. We don't know // which namespace the new `ty` is in until normalized anyway. - (ty, _) = ctx.lower_partly_resolved_path( - node, - resolution, - resolved_segment, - current_segment, - (remaining_idx - 1) as u32, - false, - ); + (ty, _) = path_ctx.lower_partly_resolved_path(resolution, false); tried_resolving_once = true; ty = self.table.insert_type_vars(ty); @@ -1604,8 +1596,6 @@ impl<'a> InferenceContext<'a> { return (self.err_ty(), None); } - // FIXME(inherent_associated_types): update `resolution` based on `ty` here. - remaining_idx += 1; remaining_segments = remaining_segments.skip(1); } drop(ctx); @@ -1621,11 +1611,7 @@ impl<'a> InferenceContext<'a> { (ty, variant) } TypeNs::TypeAliasId(it) => { - let resolved_seg = match unresolved { - None => path.segments().last().unwrap(), - Some(n) => path.segments().get(path.segments().len() - n - 1).unwrap(), - }; - let substs = ctx.substs_from_path_segment(resolved_seg, it.into(), true, None); + let substs = path_ctx.substs_from_path_segment(it.into(), true, None); drop(ctx); let ty = self.db.ty(it.into()); let ty = self.insert_type_vars(ty.substitute(Interner, &substs)); diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/infer/diagnostics.rs b/src/tools/rust-analyzer/crates/hir-ty/src/infer/diagnostics.rs index b85378531ad65..8c0446953a6b7 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/infer/diagnostics.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/infer/diagnostics.rs @@ -5,16 +5,13 @@ use std::cell::RefCell; use std::ops::{Deref, DerefMut}; -use hir_def::expr_store::HygieneId; -use hir_def::hir::ExprOrPatId; -use hir_def::path::{Path, PathSegment, PathSegments}; -use hir_def::resolver::{ResolveValueResult, Resolver, TypeNs}; -use hir_def::type_ref::TypesMap; -use hir_def::TypeOwnerId; +use either::Either; +use hir_def::{hir::ExprOrPatId, path::Path, resolver::Resolver, type_ref::TypesMap, TypeOwnerId}; -use crate::db::HirDatabase; use crate::{ - InferenceDiagnostic, InferenceTyDiagnosticSource, Ty, TyLoweringContext, TyLoweringDiagnostic, + db::HirDatabase, + lower::path::{PathDiagnosticCallback, PathLoweringContext}, + InferenceDiagnostic, InferenceTyDiagnosticSource, TyLoweringContext, TyLoweringDiagnostic, }; // Unfortunately, this struct needs to use interior mutability (but we encapsulate it) @@ -44,6 +41,11 @@ impl Diagnostics { } } +pub(crate) struct PathDiagnosticCallbackData<'a> { + node: ExprOrPatId, + diagnostics: &'a Diagnostics, +} + pub(super) struct InferenceTyLoweringContext<'a> { ctx: TyLoweringContext<'a>, diagnostics: &'a Diagnostics, @@ -51,6 +53,7 @@ pub(super) struct InferenceTyLoweringContext<'a> { } impl<'a> InferenceTyLoweringContext<'a> { + #[inline] pub(super) fn new( db: &'a dyn HirDatabase, resolver: &'a Resolver, @@ -62,65 +65,42 @@ impl<'a> InferenceTyLoweringContext<'a> { Self { ctx: TyLoweringContext::new(db, resolver, types_map, owner), diagnostics, source } } - pub(super) fn resolve_path_in_type_ns( - &mut self, - path: &Path, - node: ExprOrPatId, - ) -> Option<(TypeNs, Option)> { - let diagnostics = self.diagnostics; - self.ctx.resolve_path_in_type_ns(path, &mut |_, diag| { - diagnostics.push(InferenceDiagnostic::PathDiagnostic { node, diag }) - }) - } - - pub(super) fn resolve_path_in_value_ns( - &mut self, - path: &Path, - node: ExprOrPatId, - hygiene_id: HygieneId, - ) -> Option { - let diagnostics = self.diagnostics; - self.ctx.resolve_path_in_value_ns(path, hygiene_id, &mut |_, diag| { - diagnostics.push(InferenceDiagnostic::PathDiagnostic { node, diag }) - }) - } - - pub(super) fn lower_partly_resolved_path( - &mut self, + #[inline] + pub(super) fn at_path<'b>( + &'b mut self, + path: &'b Path, node: ExprOrPatId, - resolution: TypeNs, - resolved_segment: PathSegment<'_>, - remaining_segments: PathSegments<'_>, - resolved_segment_idx: u32, - infer_args: bool, - ) -> (Ty, Option) { - let diagnostics = self.diagnostics; - self.ctx.lower_partly_resolved_path( - resolution, - resolved_segment, - remaining_segments, - resolved_segment_idx, - infer_args, - &mut |_, diag| diagnostics.push(InferenceDiagnostic::PathDiagnostic { node, diag }), - ) + ) -> PathLoweringContext<'b, 'a> { + let on_diagnostic = PathDiagnosticCallback { + data: Either::Right(PathDiagnosticCallbackData { diagnostics: self.diagnostics, node }), + callback: |data, _, diag| { + let data = data.as_ref().right().unwrap(); + data.diagnostics + .push(InferenceDiagnostic::PathDiagnostic { node: data.node, diag }); + }, + }; + PathLoweringContext::new(&mut self.ctx, on_diagnostic, path) } } impl<'a> Deref for InferenceTyLoweringContext<'a> { type Target = TyLoweringContext<'a>; + #[inline] fn deref(&self) -> &Self::Target { &self.ctx } } impl DerefMut for InferenceTyLoweringContext<'_> { + #[inline] fn deref_mut(&mut self) -> &mut Self::Target { &mut self.ctx } } impl Drop for InferenceTyLoweringContext<'_> { + #[inline] fn drop(&mut self) { self.diagnostics .push_ty_diagnostics(self.source, std::mem::take(&mut self.ctx.diagnostics)); diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/infer/pat.rs b/src/tools/rust-analyzer/crates/hir-ty/src/infer/pat.rs index 5ff22bea34dea..d0fe00ecebdd8 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/infer/pat.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/infer/pat.rs @@ -564,9 +564,17 @@ impl InferenceContext<'_> { | Pat::Range { .. } | Pat::Slice { .. } => true, Pat::Or(pats) => pats.iter().all(|p| self.is_non_ref_pat(body, *p)), - Pat::Path(p) => { - let v = self.resolve_value_path_inner(p, pat.into()); - v.is_some_and(|x| !matches!(x.0, hir_def::resolver::ValueNs::ConstId(_))) + Pat::Path(path) => { + // A const is a reference pattern, but other value ns things aren't (see #16131). We don't need more than + // the hir-def resolver for this, because if there are segments left, this can only be an (associated) const. + // + // Do not use `TyLoweringContext`'s resolution, we want to ignore errors here (they'll be reported elsewhere). + let resolution = self.resolver.resolve_path_in_value_ns_fully( + self.db.upcast(), + path, + body.pat_path_hygiene(pat), + ); + resolution.is_some_and(|it| !matches!(it, hir_def::resolver::ValueNs::ConstId(_))) } Pat::ConstBlock(..) => false, Pat::Lit(expr) => !matches!( diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/infer/path.rs b/src/tools/rust-analyzer/crates/hir-ty/src/infer/path.rs index 36ec60a7a2f69..3794912ee980a 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/infer/path.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/infer/path.rs @@ -7,7 +7,6 @@ use hir_def::{ AdtId, AssocItemId, GenericDefId, ItemContainerId, Lookup, }; use hir_expand::name::Name; -use intern::sym; use stdx::never; use crate::{ @@ -94,7 +93,14 @@ impl InferenceContext<'_> { return Some(ValuePathResolution::NonGeneric(ty)); }; - let substs = self.with_body_ty_lowering(|ctx| ctx.substs_from_path(path, value_def, true)); + let substs = self.with_body_ty_lowering(|ctx| { + let mut path_ctx = ctx.at_path(path, id); + let last_segment = path.segments().len().checked_sub(1); + if let Some(last_segment) = last_segment { + path_ctx.set_current_segment(last_segment) + } + path_ctx.substs_from_path(value_def, true) + }); let substs = substs.as_slice(Interner); if let ValueNs::EnumVariantId(_) = value { @@ -156,15 +162,16 @@ impl InferenceContext<'_> { &self.diagnostics, InferenceTyDiagnosticSource::Body, ); + let mut path_ctx = ctx.at_path(path, id); let (value, self_subst) = if let Some(type_ref) = path.type_anchor() { let last = path.segments().last()?; - let (ty, orig_ns) = ctx.lower_ty_ext(type_ref); + let (ty, orig_ns) = path_ctx.ty_ctx().lower_ty_ext(type_ref); let ty = self.table.insert_type_vars(ty); let ty = self.table.normalize_associated_types_in(ty); - let remaining_segments_for_ty = path.segments().take(path.segments().len() - 1); - let (ty, _) = ctx.lower_ty_relative_path(ty, orig_ns, remaining_segments_for_ty); + path_ctx.ignore_last_segment(); + let (ty, _) = path_ctx.lower_ty_relative_path(ty, orig_ns); drop(ctx); let ty = self.table.insert_type_vars(ty); let ty = self.table.normalize_associated_types_in(ty); @@ -172,14 +179,52 @@ impl InferenceContext<'_> { } else { let hygiene = self.body.expr_or_pat_path_hygiene(id); // FIXME: report error, unresolved first path segment - let value_or_partial = ctx.resolve_path_in_value_ns(path, id, hygiene)?; - drop(ctx); + let value_or_partial = path_ctx.resolve_path_in_value_ns(hygiene)?; match value_or_partial { - ResolveValueResult::ValueNs(it, _) => (it, None), - ResolveValueResult::Partial(def, remaining_index, _) => self - .resolve_assoc_item(id, def, path, remaining_index, id) - .map(|(it, substs)| (it, Some(substs)))?, + ResolveValueResult::ValueNs(it, _) => { + drop(ctx); + (it, None) + } + ResolveValueResult::Partial(def, remaining_index, _) => { + // there may be more intermediate segments between the resolved one and + // the end. Only the last segment needs to be resolved to a value; from + // the segments before that, we need to get either a type or a trait ref. + + let remaining_segments = path.segments().skip(remaining_index); + let is_before_last = remaining_segments.len() == 1; + let last_segment = remaining_segments + .last() + .expect("there should be at least one segment here"); + + let (resolution, substs) = match (def, is_before_last) { + (TypeNs::TraitId(trait_), true) => { + let self_ty = self.table.new_type_var(); + let trait_ref = + path_ctx.lower_trait_ref_from_resolved_path(trait_, self_ty); + drop(ctx); + self.resolve_trait_assoc_item(trait_ref, last_segment, id) + } + (def, _) => { + // Either we already have a type (e.g. `Vec::new`), or we have a + // trait but it's not the last segment, so the next segment + // should resolve to an associated type of that trait (e.g. `::Item::default`) + path_ctx.ignore_last_segment(); + let (ty, _) = path_ctx.lower_partly_resolved_path(def, true); + drop(ctx); + if ty.is_unknown() { + return None; + } + + let ty = self.insert_type_vars(ty); + let ty = self.normalize_associated_types_in(ty); + + self.resolve_ty_assoc_item(ty, last_segment.name, id) + } + }?; + (resolution, Some(substs)) + } } }; Some((value, self_subst)) @@ -212,89 +257,6 @@ impl InferenceContext<'_> { } } - fn resolve_assoc_item( - &mut self, - node: ExprOrPatId, - def: TypeNs, - path: &Path, - remaining_index: usize, - id: ExprOrPatId, - ) -> Option<(ValueNs, Substitution)> { - // there may be more intermediate segments between the resolved one and - // the end. Only the last segment needs to be resolved to a value; from - // the segments before that, we need to get either a type or a trait ref. - - let _d; - let (resolved_segment, remaining_segments) = match path { - Path::Normal { .. } | Path::BarePath(_) => { - assert!(remaining_index < path.segments().len()); - ( - path.segments().get(remaining_index - 1).unwrap(), - path.segments().skip(remaining_index), - ) - } - Path::LangItem(..) => ( - PathSegment { - name: { - _d = Name::new_symbol_root(sym::Unknown.clone()); - &_d - }, - args_and_bindings: None, - }, - path.segments(), - ), - }; - let is_before_last = remaining_segments.len() == 1; - - match (def, is_before_last) { - (TypeNs::TraitId(trait_), true) => { - let segment = - remaining_segments.last().expect("there should be at least one segment here"); - let self_ty = self.table.new_type_var(); - let trait_ref = self.with_body_ty_lowering(|ctx| { - ctx.lower_trait_ref_from_resolved_path(trait_, resolved_segment, self_ty) - }); - self.resolve_trait_assoc_item(trait_ref, segment, id) - } - (def, _) => { - // Either we already have a type (e.g. `Vec::new`), or we have a - // trait but it's not the last segment, so the next segment - // should resolve to an associated type of that trait (e.g. `::Item::default`) - let remaining_segments_for_ty = - remaining_segments.take(remaining_segments.len() - 1); - let mut ctx = TyLoweringContext::new( - self.db, - &self.resolver, - &self.body.types, - self.owner.into(), - &self.diagnostics, - InferenceTyDiagnosticSource::Body, - ); - let (ty, _) = ctx.lower_partly_resolved_path( - node, - def, - resolved_segment, - remaining_segments_for_ty, - (remaining_index - 1) as u32, - true, - ); - drop(ctx); - if ty.is_unknown() { - return None; - } - - let ty = self.insert_type_vars(ty); - let ty = self.normalize_associated_types_in(ty); - - let segment = - remaining_segments.last().expect("there should be at least one segment here"); - - self.resolve_ty_assoc_item(ty, segment.name, id) - } - } - } - fn resolve_trait_assoc_item( &mut self, trait_ref: TraitRef, diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/lower.rs b/src/tools/rust-analyzer/crates/hir-ty/src/lower.rs index 595929a8f41b6..af73b5ed9a7b4 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/lower.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/lower.rs @@ -6,6 +6,7 @@ //! //! This usually involves resolving names, collecting generic arguments etc. pub(crate) mod diagnostics; +pub(crate) mod path; use std::{ cell::OnceCell, @@ -26,29 +27,26 @@ use hir_def::{ builtin_type::BuiltinType, data::{adt::StructKind, TraitFlags}, expander::Expander, - expr_store::HygieneId, generics::{ GenericParamDataRef, TypeOrConstParamData, TypeParamProvenance, WherePredicate, WherePredicateTypeTarget, }, lang_item::LangItem, nameres::MacroSubNs, - path::{GenericArg, GenericArgs, ModPath, Path, PathKind, PathSegment, PathSegments}, - resolver::{HasResolver, LifetimeNs, ResolveValueResult, Resolver, TypeNs, ValueNs}, + path::{GenericArg, ModPath, Path, PathKind}, + resolver::{HasResolver, LifetimeNs, Resolver, TypeNs}, type_ref::{ ConstRef, LifetimeRef, PathId, TraitBoundModifier, TraitRef as HirTraitRef, TypeBound, TypeRef, TypeRefId, TypesMap, TypesSourceMap, }, AdtId, AssocItemId, CallableDefId, ConstId, ConstParamId, DefWithBodyId, EnumId, EnumVariantId, - FunctionId, GenericDefId, GenericParamId, HasModule, ImplId, InTypeConstLoc, ItemContainerId, - LocalFieldId, Lookup, StaticId, StructId, TraitId, TypeAliasId, TypeOrConstParamId, - TypeOwnerId, UnionId, VariantId, + FunctionId, GenericDefId, GenericParamId, HasModule, ImplId, InTypeConstLoc, LocalFieldId, + Lookup, StaticId, StructId, TypeAliasId, TypeOrConstParamId, TypeOwnerId, UnionId, VariantId, }; use hir_expand::{name::Name, ExpandResult}; use la_arena::{Arena, ArenaMap}; use rustc_hash::FxHashSet; use rustc_pattern_analysis::Captures; -use smallvec::SmallVec; use stdx::{impl_from, never}; use syntax::ast; use triomphe::{Arc, ThinArc}; @@ -62,18 +60,19 @@ use crate::{ db::HirDatabase, error_lifetime, generics::{generics, trait_self_param_idx, Generics}, - lower::diagnostics::*, + lower::{ + diagnostics::*, + path::{PathDiagnosticCallback, PathLoweringContext}, + }, make_binders, mapping::{from_chalk_trait_id, lt_to_placeholder_idx, ToChalk}, - static_lifetime, to_assoc_type_id, to_chalk_trait_id, to_placeholder_idx, - utils::{ - all_super_trait_refs, associated_type_by_name_including_super_traits, InTypeConstIdMetadata, - }, - AliasEq, AliasTy, Binders, BoundVar, CallableSig, Const, ConstScalar, DebruijnIndex, DynTy, - FnAbi, FnPointer, FnSig, FnSubst, ImplTrait, ImplTraitId, ImplTraits, Interner, Lifetime, - LifetimeData, LifetimeOutlives, ParamKind, PolyFnSig, ProgramClause, ProjectionTy, - QuantifiedWhereClause, QuantifiedWhereClauses, Substitution, TraitEnvironment, TraitRef, - TraitRefExt, Ty, TyBuilder, TyKind, WhereClause, + static_lifetime, to_chalk_trait_id, to_placeholder_idx, + utils::{all_super_trait_refs, InTypeConstIdMetadata}, + AliasTy, Binders, BoundVar, CallableSig, Const, ConstScalar, DebruijnIndex, DynTy, FnAbi, + FnPointer, FnSig, FnSubst, ImplTrait, ImplTraitId, ImplTraits, Interner, Lifetime, + LifetimeData, LifetimeOutlives, ParamKind, PolyFnSig, ProgramClause, QuantifiedWhereClause, + QuantifiedWhereClauses, Substitution, TraitEnvironment, TraitRef, TraitRefExt, Ty, TyBuilder, + TyKind, WhereClause, }; #[derive(Debug, Default)] @@ -106,6 +105,8 @@ impl ImplTraitLoweringState { } } +pub(crate) struct PathDiagnosticCallbackData(TypeRefId); + #[derive(Debug)] pub struct TyLoweringContext<'a> { pub db: &'a dyn HirDatabase, @@ -527,9 +528,8 @@ impl<'a> TyLoweringContext<'a> { if path.segments().len() > 1 { return None; } - let resolution = match self - .resolve_path_in_type_ns(path, &mut Self::on_path_diagnostic_callback(type_ref_id)) - { + let mut ctx = self.at_path(PathId::from_type_ref_unchecked(type_ref_id)); + let resolution = match ctx.resolve_path_in_type_ns() { Some((it, None)) => it, _ => return None, }; @@ -539,409 +539,36 @@ impl<'a> TyLoweringContext<'a> { } } - pub(crate) fn lower_ty_relative_path( - &mut self, - ty: Ty, - // We need the original resolution to lower `Self::AssocTy` correctly - res: Option, - remaining_segments: PathSegments<'_>, - ) -> (Ty, Option) { - match remaining_segments.len() { - 0 => (ty, res), - 1 => { - // resolve unselected assoc types - let segment = remaining_segments.first().unwrap(); - (self.select_associated_type(res, segment), None) - } - _ => { - // FIXME report error (ambiguous associated type) - (TyKind::Error.intern(Interner), None) - } - } - } - - pub(crate) fn lower_partly_resolved_path( - &mut self, - resolution: TypeNs, - resolved_segment: PathSegment<'_>, - remaining_segments: PathSegments<'_>, - _resolved_segment_idx: u32, - infer_args: bool, - _on_diagnostic: &mut dyn FnMut(&mut Self, PathLoweringDiagnostic), - ) -> (Ty, Option) { - let ty = match resolution { - TypeNs::TraitId(trait_) => { - let ty = match remaining_segments.len() { - 1 => { - let trait_ref = self.lower_trait_ref_from_resolved_path( - trait_, - resolved_segment, - TyKind::Error.intern(Interner), - ); - let segment = remaining_segments.first().unwrap(); - let found = self - .db - .trait_data(trait_ref.hir_trait_id()) - .associated_type_by_name(segment.name); - - match found { - Some(associated_ty) => { - // FIXME: `substs_from_path_segment()` pushes `TyKind::Error` for every parent - // generic params. It's inefficient to splice the `Substitution`s, so we may want - // that method to optionally take parent `Substitution` as we already know them at - // this point (`trait_ref.substitution`). - let substitution = self.substs_from_path_segment( - segment, - associated_ty.into(), - false, - None, - ); - let len_self = - generics(self.db.upcast(), associated_ty.into()).len_self(); - let substitution = Substitution::from_iter( - Interner, - substitution - .iter(Interner) - .take(len_self) - .chain(trait_ref.substitution.iter(Interner)), - ); - TyKind::Alias(AliasTy::Projection(ProjectionTy { - associated_ty_id: to_assoc_type_id(associated_ty), - substitution, - })) - .intern(Interner) - } - None => { - // FIXME: report error (associated type not found) - TyKind::Error.intern(Interner) - } - } - } - 0 => { - // Trait object type without dyn; this should be handled in upstream. See - // `lower_path()`. - stdx::never!("unexpected fully resolved trait path"); - TyKind::Error.intern(Interner) - } - _ => { - // FIXME report error (ambiguous associated type) - TyKind::Error.intern(Interner) - } - }; - return (ty, None); - } - TypeNs::TraitAliasId(_) => { - // FIXME(trait_alias): Implement trait alias. - return (TyKind::Error.intern(Interner), None); - } - TypeNs::GenericParam(param_id) => match self.type_param_mode { - ParamLoweringMode::Placeholder => { - TyKind::Placeholder(to_placeholder_idx(self.db, param_id.into())) - } - ParamLoweringMode::Variable => { - let idx = match self - .generics() - .expect("generics in scope") - .type_or_const_param_idx(param_id.into()) - { - None => { - never!("no matching generics"); - return (TyKind::Error.intern(Interner), None); - } - Some(idx) => idx, - }; - - TyKind::BoundVar(BoundVar::new(self.in_binders, idx)) - } - } - .intern(Interner), - TypeNs::SelfType(impl_id) => { - let generics = self.generics().expect("impl should have generic param scope"); - - match self.type_param_mode { - ParamLoweringMode::Placeholder => { - // `def` can be either impl itself or item within, and we need impl itself - // now. - let generics = generics.parent_or_self(); - let subst = generics.placeholder_subst(self.db); - self.db.impl_self_ty(impl_id).substitute(Interner, &subst) - } - ParamLoweringMode::Variable => { - let starting_from = match generics.def() { - GenericDefId::ImplId(_) => 0, - // `def` is an item within impl. We need to substitute `BoundVar`s but - // remember that they are for parent (i.e. impl) generic params so they - // come after our own params. - _ => generics.len_self(), - }; - TyBuilder::impl_self_ty(self.db, impl_id) - .fill_with_bound_vars(self.in_binders, starting_from) - .build() - } - } - } - TypeNs::AdtSelfType(adt) => { - let generics = generics(self.db.upcast(), adt.into()); - let substs = match self.type_param_mode { - ParamLoweringMode::Placeholder => generics.placeholder_subst(self.db), - ParamLoweringMode::Variable => { - generics.bound_vars_subst(self.db, self.in_binders) - } - }; - self.db.ty(adt.into()).substitute(Interner, &substs) - } - - TypeNs::AdtId(it) => self.lower_path_inner(resolved_segment, it.into(), infer_args), - TypeNs::BuiltinType(it) => { - self.lower_path_inner(resolved_segment, it.into(), infer_args) - } - TypeNs::TypeAliasId(it) => { - self.lower_path_inner(resolved_segment, it.into(), infer_args) - } - // FIXME: report error - TypeNs::EnumVariantId(_) => return (TyKind::Error.intern(Interner), None), - }; - self.lower_ty_relative_path(ty, Some(resolution), remaining_segments) - } - - fn handle_type_ns_resolution( - &mut self, - resolution: &TypeNs, - resolved_segment: PathSegment<'_>, - resolved_segment_idx: usize, - on_diagnostic: &mut dyn FnMut(&mut Self, PathLoweringDiagnostic), - ) { - let mut prohibit_generics_on_resolved = |reason| { - if resolved_segment.args_and_bindings.is_some() { - on_diagnostic( - self, - PathLoweringDiagnostic::GenericArgsProhibited { - segment: resolved_segment_idx as u32, - reason, - }, - ); - } - }; - - match resolution { - TypeNs::SelfType(_) => { - prohibit_generics_on_resolved(GenericArgsProhibitedReason::SelfTy) - } - TypeNs::GenericParam(_) => { - prohibit_generics_on_resolved(GenericArgsProhibitedReason::TyParam) - } - TypeNs::AdtSelfType(_) => { - prohibit_generics_on_resolved(GenericArgsProhibitedReason::SelfTy) - } - TypeNs::BuiltinType(_) => { - prohibit_generics_on_resolved(GenericArgsProhibitedReason::PrimitiveTy) - } - TypeNs::AdtId(_) - | TypeNs::EnumVariantId(_) - | TypeNs::TypeAliasId(_) - | TypeNs::TraitId(_) - | TypeNs::TraitAliasId(_) => {} - } - } - - pub(crate) fn resolve_path_in_type_ns_fully( - &mut self, - path: &Path, - on_diagnostic: &mut dyn FnMut(&mut Self, PathLoweringDiagnostic), - ) -> Option { - let (res, unresolved) = self.resolve_path_in_type_ns(path, on_diagnostic)?; - if unresolved.is_some() { - return None; - } - Some(res) - } - - pub(crate) fn resolve_path_in_type_ns( - &mut self, - path: &Path, - on_diagnostic: &mut dyn FnMut(&mut Self, PathLoweringDiagnostic), - ) -> Option<(TypeNs, Option)> { - let (resolution, remaining_index, _, prefix_info) = - self.resolver.resolve_path_in_type_ns_with_prefix_info(self.db.upcast(), path)?; - let segments = path.segments(); - - match path { - // `segments.is_empty()` can occur with `self`. - Path::Normal(..) if !segments.is_empty() => (), - _ => return Some((resolution, remaining_index)), - }; - - let (module_segments, resolved_segment_idx, enum_segment) = match remaining_index { - None if prefix_info.enum_variant => { - (segments.strip_last_two(), segments.len() - 1, Some(segments.len() - 2)) - } - None => (segments.strip_last(), segments.len() - 1, None), - Some(i) => (segments.take(i - 1), i - 1, None), - }; - - for (i, mod_segment) in module_segments.iter().enumerate() { - if mod_segment.args_and_bindings.is_some() { - on_diagnostic( - self, - PathLoweringDiagnostic::GenericArgsProhibited { - segment: i as u32, - reason: GenericArgsProhibitedReason::Module, - }, - ); - } - } - - if let Some(enum_segment) = enum_segment { - if segments.get(enum_segment).is_some_and(|it| it.args_and_bindings.is_some()) - && segments.get(enum_segment + 1).is_some_and(|it| it.args_and_bindings.is_some()) - { - on_diagnostic( - self, - PathLoweringDiagnostic::GenericArgsProhibited { - segment: (enum_segment + 1) as u32, - reason: GenericArgsProhibitedReason::EnumVariant, - }, - ); - } - } - - self.handle_type_ns_resolution( - &resolution, - segments.get(resolved_segment_idx).expect("should have resolved segment"), - resolved_segment_idx, - on_diagnostic, - ); - - Some((resolution, remaining_index)) - } - - pub(crate) fn resolve_path_in_value_ns( - &mut self, - path: &Path, - hygiene_id: HygieneId, - on_diagnostic: &mut dyn FnMut(&mut Self, PathLoweringDiagnostic), - ) -> Option { - let (res, prefix_info) = self.resolver.resolve_path_in_value_ns_with_prefix_info( - self.db.upcast(), - path, - hygiene_id, - )?; - - let segments = path.segments(); - match path { - // `segments.is_empty()` can occur with `self`. - Path::Normal(..) if !segments.is_empty() => (), - _ => return Some(res), - }; - - let (mod_segments, enum_segment) = match res { - ResolveValueResult::Partial(_, unresolved_segment, _) => { - (segments.take(unresolved_segment - 1), None) - } - ResolveValueResult::ValueNs(ValueNs::EnumVariantId(_), _) - if prefix_info.enum_variant => - { - (segments.strip_last_two(), segments.len().checked_sub(2)) - } - ResolveValueResult::ValueNs(..) => (segments.strip_last(), None), - }; - for (i, mod_segment) in mod_segments.iter().enumerate() { - if mod_segment.args_and_bindings.is_some() { - on_diagnostic( - self, - PathLoweringDiagnostic::GenericArgsProhibited { - segment: i as u32, - reason: GenericArgsProhibitedReason::Module, - }, - ); - } - } - - if let Some(enum_segment) = enum_segment { - if segments.get(enum_segment).is_some_and(|it| it.args_and_bindings.is_some()) - && segments.get(enum_segment + 1).is_some_and(|it| it.args_and_bindings.is_some()) - { - on_diagnostic( - self, - PathLoweringDiagnostic::GenericArgsProhibited { - segment: (enum_segment + 1) as u32, - reason: GenericArgsProhibitedReason::EnumVariant, - }, - ); - } + #[inline] + fn on_path_diagnostic_callback(type_ref: TypeRefId) -> PathDiagnosticCallback<'static> { + PathDiagnosticCallback { + data: Either::Left(PathDiagnosticCallbackData(type_ref)), + callback: |data, this, diag| { + let type_ref = data.as_ref().left().unwrap().0; + this.push_diagnostic(type_ref, TyLoweringDiagnosticKind::PathDiagnostic(diag)) + }, } - - match &res { - ResolveValueResult::ValueNs(resolution, _) => { - let resolved_segment_idx = - segments.len().checked_sub(1).unwrap_or_else(|| panic!("{path:?}")); - let resolved_segment = segments.last().unwrap(); - - let mut prohibit_generics_on_resolved = |reason| { - if resolved_segment.args_and_bindings.is_some() { - on_diagnostic( - self, - PathLoweringDiagnostic::GenericArgsProhibited { - segment: resolved_segment_idx as u32, - reason, - }, - ); - } - }; - - match resolution { - ValueNs::ImplSelf(_) => { - prohibit_generics_on_resolved(GenericArgsProhibitedReason::SelfTy) - } - // FIXME: rustc generates E0107 (incorrect number of generic arguments) and not - // E0109 (generic arguments provided for a type that doesn't accept them) for - // consts and statics, presumably as a defense against future in which consts - // and statics can be generic, or just because it was easier for rustc implementors. - // That means we'll show the wrong error code. Because of us it's easier to do it - // this way :) - ValueNs::GenericParam(_) | ValueNs::ConstId(_) => { - prohibit_generics_on_resolved(GenericArgsProhibitedReason::Const) - } - ValueNs::StaticId(_) => { - prohibit_generics_on_resolved(GenericArgsProhibitedReason::Static) - } - ValueNs::FunctionId(_) | ValueNs::StructId(_) | ValueNs::EnumVariantId(_) => {} - ValueNs::LocalBinding(_) => {} - } - } - ResolveValueResult::Partial(resolution, unresolved_idx, _) => { - let resolved_segment_idx = unresolved_idx - 1; - let resolved_segment = segments.get(resolved_segment_idx).unwrap(); - self.handle_type_ns_resolution( - resolution, - resolved_segment, - resolved_segment_idx, - on_diagnostic, - ); - } - }; - Some(res) } - fn on_path_diagnostic_callback( - type_ref: TypeRefId, - ) -> impl FnMut(&mut Self, PathLoweringDiagnostic) { - move |this, diag| { - this.push_diagnostic(type_ref, TyLoweringDiagnosticKind::PathDiagnostic(diag)) - } + #[inline] + fn at_path(&mut self, path_id: PathId) -> PathLoweringContext<'_, 'a> { + PathLoweringContext::new( + self, + Self::on_path_diagnostic_callback(path_id.type_ref()), + &self.types_map[path_id], + ) } pub(crate) fn lower_path(&mut self, path: &Path, path_id: PathId) -> (Ty, Option) { // Resolve the path (in type namespace) if let Some(type_ref) = path.type_anchor() { let (ty, res) = self.lower_ty_ext(type_ref); - return self.lower_ty_relative_path(ty, res, path.segments()); + let mut ctx = self.at_path(path_id); + return ctx.lower_ty_relative_path(ty, res); } - let (resolution, remaining_index) = match self.resolve_path_in_type_ns( - path, - &mut Self::on_path_diagnostic_callback(path_id.type_ref()), - ) { + let mut ctx = self.at_path(path_id); + let (resolution, remaining_index) = match ctx.resolve_path_in_type_ns() { Some(it) => it, None => return (TyKind::Error.intern(Interner), None), }; @@ -953,346 +580,21 @@ impl<'a> TyLoweringContext<'a> { return (ty, None); } - let (resolved_segment_idx, resolved_segment, remaining_segments) = match remaining_index { - None => ( - path.segments().len() - 1, - path.segments().last().expect("resolved path has at least one element"), - PathSegments::EMPTY, - ), - Some(i) => (i - 1, path.segments().get(i - 1).unwrap(), path.segments().skip(i)), - }; - - self.lower_partly_resolved_path( - resolution, - resolved_segment, - remaining_segments, - resolved_segment_idx as u32, - false, - &mut Self::on_path_diagnostic_callback(path_id.type_ref()), - ) - } - - fn select_associated_type(&mut self, res: Option, segment: PathSegment<'_>) -> Ty { - let Some((generics, res)) = self.generics().zip(res) else { - return TyKind::Error.intern(Interner); - }; - let ty = named_associated_type_shorthand_candidates( - self.db, - generics.def(), - res, - Some(segment.name.clone()), - move |name, t, associated_ty| { - let generics = self.generics().unwrap(); - - if name != segment.name { - return None; - } - - let parent_subst = t.substitution.clone(); - let parent_subst = match self.type_param_mode { - ParamLoweringMode::Placeholder => { - // if we're lowering to placeholders, we have to put them in now. - let s = generics.placeholder_subst(self.db); - s.apply(parent_subst, Interner) - } - ParamLoweringMode::Variable => { - // We need to shift in the bound vars, since - // `named_associated_type_shorthand_candidates` does not do that. - parent_subst.shifted_in_from(Interner, self.in_binders) - } - }; - - // FIXME: `substs_from_path_segment()` pushes `TyKind::Error` for every parent - // generic params. It's inefficient to splice the `Substitution`s, so we may want - // that method to optionally take parent `Substitution` as we already know them at - // this point (`t.substitution`). - let substs = - self.substs_from_path_segment(segment, associated_ty.into(), false, None); - - let len_self = - crate::generics::generics(self.db.upcast(), associated_ty.into()).len_self(); - - let substs = Substitution::from_iter( - Interner, - substs.iter(Interner).take(len_self).chain(parent_subst.iter(Interner)), - ); - - Some( - TyKind::Alias(AliasTy::Projection(ProjectionTy { - associated_ty_id: to_assoc_type_id(associated_ty), - substitution: substs, - })) - .intern(Interner), - ) - }, - ); - - ty.unwrap_or_else(|| TyKind::Error.intern(Interner)) - } - - fn lower_path_inner( - &mut self, - segment: PathSegment<'_>, - typeable: TyDefId, - infer_args: bool, - ) -> Ty { - let generic_def = match typeable { - TyDefId::BuiltinType(builtin) => return TyBuilder::builtin(builtin), - TyDefId::AdtId(it) => it.into(), - TyDefId::TypeAliasId(it) => it.into(), - }; - let substs = self.substs_from_path_segment(segment, generic_def, infer_args, None); - self.db.ty(typeable).substitute(Interner, &substs) - } - - /// Collect generic arguments from a path into a `Substs`. See also - /// `create_substs_for_ast_path` and `def_to_ty` in rustc. - pub(super) fn substs_from_path( - &mut self, - path: &Path, - // Note that we don't call `db.value_type(resolved)` here, - // `ValueTyDefId` is just a convenient way to pass generics and - // special-case enum variants - resolved: ValueTyDefId, - infer_args: bool, - ) -> Substitution { - let last = path.segments().last(); - let (segment, generic_def) = match resolved { - ValueTyDefId::FunctionId(it) => (last, it.into()), - ValueTyDefId::StructId(it) => (last, it.into()), - ValueTyDefId::UnionId(it) => (last, it.into()), - ValueTyDefId::ConstId(it) => (last, it.into()), - ValueTyDefId::StaticId(_) => return Substitution::empty(Interner), - ValueTyDefId::EnumVariantId(var) => { - // the generic args for an enum variant may be either specified - // on the segment referring to the enum, or on the segment - // referring to the variant. So `Option::::None` and - // `Option::None::` are both allowed (though the former is - // preferred). See also `def_ids_for_path_segments` in rustc. - let len = path.segments().len(); - let penultimate = len.checked_sub(2).and_then(|idx| path.segments().get(idx)); - let segment = match penultimate { - Some(segment) if segment.args_and_bindings.is_some() => Some(segment), - _ => last, - }; - (segment, var.lookup(self.db.upcast()).parent.into()) - } - }; - let args_and_bindings = segment.and_then(|it| it.args_and_bindings); - self.substs_from_args_and_bindings(args_and_bindings, generic_def, infer_args, None) - } - - pub(super) fn substs_from_path_segment( - &mut self, - segment: PathSegment<'_>, - def: GenericDefId, - infer_args: bool, - explicit_self_ty: Option, - ) -> Substitution { - self.substs_from_args_and_bindings( - segment.args_and_bindings, - def, - infer_args, - explicit_self_ty, - ) - } - - fn substs_from_args_and_bindings( - &mut self, - args_and_bindings: Option<&GenericArgs>, - def: GenericDefId, - infer_args: bool, - explicit_self_ty: Option, - ) -> Substitution { - // Order is - // - Optional Self parameter - // - Lifetime parameters - // - Type or Const parameters - // - Parent parameters - let def_generics = generics(self.db.upcast(), def); - let ( - parent_params, - self_param, - type_params, - const_params, - impl_trait_params, - lifetime_params, - ) = def_generics.provenance_split(); - let item_len = - self_param as usize + type_params + const_params + impl_trait_params + lifetime_params; - let total_len = parent_params + item_len; - - let mut substs = Vec::new(); - - // we need to iterate the lifetime and type/const params separately as our order of them - // differs from the supplied syntax - - let ty_error = || TyKind::Error.intern(Interner).cast(Interner); - let mut def_toc_iter = def_generics.iter_self_type_or_consts_id(); - let fill_self_param = || { - if self_param { - let self_ty = explicit_self_ty.map(|x| x.cast(Interner)).unwrap_or_else(ty_error); - - if let Some(id) = def_toc_iter.next() { - assert!(matches!(id, GenericParamId::TypeParamId(_))); - substs.push(self_ty); - } - } - }; - let mut had_explicit_args = false; - - if let Some(&GenericArgs { ref args, has_self_type, .. }) = args_and_bindings { - // Fill in the self param first - if has_self_type && self_param { - had_explicit_args = true; - if let Some(id) = def_toc_iter.next() { - assert!(matches!(id, GenericParamId::TypeParamId(_))); - had_explicit_args = true; - if let GenericArg::Type(ty) = &args[0] { - substs.push(self.lower_ty(*ty).cast(Interner)); - } - } - } else { - fill_self_param() - }; - - // Then fill in the supplied lifetime args, or error lifetimes if there are too few - // (default lifetimes aren't a thing) - for arg in args - .iter() - .filter_map(|arg| match arg { - GenericArg::Lifetime(arg) => Some(self.lower_lifetime(arg)), - _ => None, - }) - .chain(iter::repeat(error_lifetime())) - .take(lifetime_params) - { - substs.push(arg.cast(Interner)); - } - - let skip = if has_self_type { 1 } else { 0 }; - // Fill in supplied type and const args - // Note if non-lifetime args are provided, it should be all of them, but we can't rely on that - for (arg, id) in args - .iter() - .filter(|arg| !matches!(arg, GenericArg::Lifetime(_))) - .skip(skip) - .take(type_params + const_params) - .zip(def_toc_iter) - { - had_explicit_args = true; - let arg = generic_arg_to_chalk( - self.db, - id, - arg, - self, - self.types_map, - |this, type_ref| this.lower_ty(type_ref), - |this, const_ref, ty| this.lower_const(const_ref, ty), - |this, lifetime_ref| this.lower_lifetime(lifetime_ref), - ); - substs.push(arg); - } - } else { - fill_self_param(); - } - - let param_to_err = |id| match id { - GenericParamId::ConstParamId(x) => unknown_const_as_generic(self.db.const_param_ty(x)), - GenericParamId::TypeParamId(_) => ty_error(), - GenericParamId::LifetimeParamId(_) => error_lifetime().cast(Interner), - }; - // handle defaults. In expression or pattern path segments without - // explicitly specified type arguments, missing type arguments are inferred - // (i.e. defaults aren't used). - // Generic parameters for associated types are not supposed to have defaults, so we just - // ignore them. - let is_assoc_ty = || match def { - GenericDefId::TypeAliasId(id) => { - matches!(id.lookup(self.db.upcast()).container, ItemContainerId::TraitId(_)) - } - _ => false, - }; - let fill_defaults = (!infer_args || had_explicit_args) && !is_assoc_ty(); - if fill_defaults { - let defaults = &*self.db.generic_defaults(def); - let (item, _parent) = defaults.split_at(item_len); - let parent_from = item_len - substs.len(); - - let mut rem = - def_generics.iter_id().skip(substs.len()).map(param_to_err).collect::>(); - // Fill in defaults for type/const params - for (idx, default_ty) in item[substs.len()..].iter().enumerate() { - // each default can depend on the previous parameters - let substs_so_far = Substitution::from_iter( - Interner, - substs.iter().cloned().chain(rem[idx..].iter().cloned()), - ); - substs.push(default_ty.clone().substitute(Interner, &substs_so_far)); - } - // Fill in remaining parent params - substs.extend(rem.drain(parent_from..)); - } else { - // Fill in remaining def params and parent params - substs.extend(def_generics.iter_id().skip(substs.len()).map(param_to_err)); - } - - assert_eq!(substs.len(), total_len, "expected {} substs, got {}", total_len, substs.len()); - Substitution::from_iter(Interner, substs) - } - - pub(crate) fn lower_trait_ref_from_resolved_path( - &mut self, - resolved: TraitId, - segment: PathSegment<'_>, - explicit_self_ty: Ty, - ) -> TraitRef { - let substs = self.trait_ref_substs_from_path(segment, resolved, explicit_self_ty); - TraitRef { trait_id: to_chalk_trait_id(resolved), substitution: substs } - } - - fn prohibit_generics( - &mut self, - path_id: PathId, - idx: u32, - segments: PathSegments<'_>, - reason: GenericArgsProhibitedReason, - ) { - segments.iter().zip(idx..).for_each(|(segment, idx)| { - if segment.args_and_bindings.is_some() { - self.push_diagnostic( - path_id.type_ref(), - TyLoweringDiagnosticKind::PathDiagnostic( - PathLoweringDiagnostic::GenericArgsProhibited { segment: idx, reason }, - ), - ); - } - }); + ctx.lower_partly_resolved_path(resolution, false) } fn lower_trait_ref_from_path( &mut self, path_id: PathId, explicit_self_ty: Ty, - ) -> Option { - let path = &self.types_map[path_id]; - let resolved = match self.resolve_path_in_type_ns_fully( - path, - &mut Self::on_path_diagnostic_callback(path_id.type_ref()), - )? { + ) -> Option<(TraitRef, PathLoweringContext<'_, 'a>)> { + let mut ctx = self.at_path(path_id); + let resolved = match ctx.resolve_path_in_type_ns_fully()? { // FIXME(trait_alias): We need to handle trait alias here. TypeNs::TraitId(tr) => tr, _ => return None, }; - // Do this after we verify it's indeed a trait to not confuse the user if they're not modules. - self.prohibit_generics( - path_id, - 0, - path.segments().strip_last(), - GenericArgsProhibitedReason::Module, - ); - let segment = path.segments().last().expect("path should have at least one segment"); - Some(self.lower_trait_ref_from_resolved_path(resolved, segment, explicit_self_ty)) + Some((ctx.lower_trait_ref_from_resolved_path(resolved, explicit_self_ty), ctx)) } fn lower_trait_ref( @@ -1300,16 +602,7 @@ impl<'a> TyLoweringContext<'a> { trait_ref: &HirTraitRef, explicit_self_ty: Ty, ) -> Option { - self.lower_trait_ref_from_path(trait_ref.path, explicit_self_ty) - } - - fn trait_ref_substs_from_path( - &mut self, - segment: PathSegment<'_>, - resolved: TraitId, - explicit_self_ty: Ty, - ) -> Substitution { - self.substs_from_path_segment(segment, resolved.into(), false, Some(explicit_self_ty)) + self.lower_trait_ref_from_path(trait_ref.path, explicit_self_ty).map(|it| it.0) } pub(crate) fn lower_where_predicate<'b>( @@ -1357,11 +650,18 @@ impl<'a> TyLoweringContext<'a> { self_ty: Ty, ignore_bindings: bool, ) -> impl Iterator + use<'b, 'a> { - let mut trait_ref = None; - let clause = match bound { - &TypeBound::Path(path, TraitBoundModifier::None) => { - trait_ref = self.lower_trait_ref_from_path(path, self_ty); - trait_ref.clone().map(WhereClause::Implemented).map(crate::wrap_empty_binders) + let mut assoc_bounds = None; + let mut clause = None; + match bound { + &TypeBound::Path(path, TraitBoundModifier::None) | &TypeBound::ForLifetime(_, path) => { + // FIXME Don't silently drop the hrtb lifetimes here + if let Some((trait_ref, ctx)) = self.lower_trait_ref_from_path(path, self_ty) { + if !ignore_bindings { + assoc_bounds = + ctx.assoc_type_bindings_from_type_bound(bound, trait_ref.clone()); + } + clause = Some(crate::wrap_empty_binders(WhereClause::Implemented(trait_ref))); + } } &TypeBound::Path(path, TraitBoundModifier::Maybe) => { let sized_trait = self @@ -1373,170 +673,21 @@ impl<'a> TyLoweringContext<'a> { // If we got another trait here ignore the bound completely. let trait_id = self .lower_trait_ref_from_path(path, self_ty.clone()) - .map(|trait_ref| trait_ref.hir_trait_id()); + .map(|(trait_ref, _)| trait_ref.hir_trait_id()); if trait_id == sized_trait { self.unsized_types.insert(self_ty); } - None - } - &TypeBound::ForLifetime(_, path) => { - // FIXME Don't silently drop the hrtb lifetimes here - trait_ref = self.lower_trait_ref_from_path(path, self_ty); - trait_ref.clone().map(WhereClause::Implemented).map(crate::wrap_empty_binders) } TypeBound::Lifetime(l) => { let lifetime = self.lower_lifetime(l); - Some(crate::wrap_empty_binders(WhereClause::TypeOutlives(TypeOutlives { + clause = Some(crate::wrap_empty_binders(WhereClause::TypeOutlives(TypeOutlives { ty: self_ty, lifetime, - }))) + }))); } - TypeBound::Use(_) | TypeBound::Error => None, - }; - clause.into_iter().chain( - trait_ref - .filter(move |_| !ignore_bindings) - .map(move |tr| self.assoc_type_bindings_from_type_bound(bound, tr)) - .into_iter() - .flatten(), - ) - } - - fn assoc_type_bindings_from_type_bound<'b>( - &'b mut self, - bound: &'b TypeBound, - trait_ref: TraitRef, - ) -> impl Iterator + use<'b, 'a> { - let last_segment = match bound { - &TypeBound::Path(path, TraitBoundModifier::None) | &TypeBound::ForLifetime(_, path) => { - self.types_map[path].segments().last() - } - TypeBound::Path(_, TraitBoundModifier::Maybe) - | TypeBound::Use(_) - | TypeBound::Error - | TypeBound::Lifetime(_) => None, - }; - last_segment - .into_iter() - .filter_map(|segment| segment.args_and_bindings) - .flat_map(|args_and_bindings| args_and_bindings.bindings.iter()) - .flat_map(move |binding| { - let found = associated_type_by_name_including_super_traits( - self.db, - trait_ref.clone(), - &binding.name, - ); - let (super_trait_ref, associated_ty) = match found { - None => return SmallVec::new(), - Some(t) => t, - }; - // FIXME: `substs_from_path_segment()` pushes `TyKind::Error` for every parent - // generic params. It's inefficient to splice the `Substitution`s, so we may want - // that method to optionally take parent `Substitution` as we already know them at - // this point (`super_trait_ref.substitution`). - let substitution = self.substs_from_path_segment( - // FIXME: This is hack. We shouldn't really build `PathSegment` directly. - PathSegment { name: &binding.name, args_and_bindings: binding.args.as_ref() }, - associated_ty.into(), - false, // this is not relevant - Some(super_trait_ref.self_type_parameter(Interner)), - ); - let self_params = generics(self.db.upcast(), associated_ty.into()).len_self(); - let substitution = Substitution::from_iter( - Interner, - substitution - .iter(Interner) - .take(self_params) - .chain(super_trait_ref.substitution.iter(Interner)), - ); - let projection_ty = ProjectionTy { - associated_ty_id: to_assoc_type_id(associated_ty), - substitution, - }; - let mut predicates: SmallVec<[_; 1]> = SmallVec::with_capacity( - binding.type_ref.as_ref().map_or(0, |_| 1) + binding.bounds.len(), - ); - if let Some(type_ref) = binding.type_ref { - match (&self.types_map[type_ref], self.impl_trait_mode.mode) { - (TypeRef::ImplTrait(_), ImplTraitLoweringMode::Disallowed) => (), - (_, ImplTraitLoweringMode::Disallowed | ImplTraitLoweringMode::Opaque) => { - let ty = self.lower_ty(type_ref); - let alias_eq = - AliasEq { alias: AliasTy::Projection(projection_ty.clone()), ty }; - predicates - .push(crate::wrap_empty_binders(WhereClause::AliasEq(alias_eq))); - } - (_, ImplTraitLoweringMode::Param | ImplTraitLoweringMode::Variable) => { - // Find the generic index for the target of our `bound` - let target_param_idx = self - .resolver - .where_predicates_in_scope() - .find_map(|(p, _)| match p { - WherePredicate::TypeBound { - target: WherePredicateTypeTarget::TypeOrConstParam(idx), - bound: b, - } if b == bound => Some(idx), - _ => None, - }); - let ty = if let Some(target_param_idx) = target_param_idx { - let mut counter = 0; - let generics = self.generics().expect("generics in scope"); - for (idx, data) in generics.iter_self_type_or_consts() { - // Count the number of `impl Trait` things that appear before - // the target of our `bound`. - // Our counter within `impl_trait_mode` should be that number - // to properly lower each types within `type_ref` - if data.type_param().is_some_and(|p| { - p.provenance == TypeParamProvenance::ArgumentImplTrait - }) { - counter += 1; - } - if idx == *target_param_idx { - break; - } - } - let mut ext = TyLoweringContext::new_maybe_unowned( - self.db, - self.resolver, - self.types_map, - self.types_source_map, - self.owner, - ) - .with_type_param_mode(self.type_param_mode); - match self.impl_trait_mode.mode { - ImplTraitLoweringMode::Param => { - ext.impl_trait_mode = - ImplTraitLoweringState::param(counter); - } - ImplTraitLoweringMode::Variable => { - ext.impl_trait_mode = - ImplTraitLoweringState::variable(counter); - } - _ => unreachable!(), - } - let ty = ext.lower_ty(type_ref); - self.diagnostics.extend(ext.diagnostics); - ty - } else { - self.lower_ty(type_ref) - }; - - let alias_eq = - AliasEq { alias: AliasTy::Projection(projection_ty.clone()), ty }; - predicates - .push(crate::wrap_empty_binders(WhereClause::AliasEq(alias_eq))); - } - } - } - for bound in binding.bounds.iter() { - predicates.extend(self.lower_type_bound( - bound, - TyKind::Alias(AliasTy::Projection(projection_ty.clone())).intern(Interner), - false, - )); - } - predicates - }) + TypeBound::Use(_) | TypeBound::Error => {} + } + clause.into_iter().chain(assoc_bounds.into_iter().flatten()) } fn lower_dyn_trait(&mut self, bounds: &[TypeBound]) -> Ty { diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/lower/diagnostics.rs b/src/tools/rust-analyzer/crates/hir-ty/src/lower/diagnostics.rs index dac04307b7403..5c77bcd0736ab 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/lower/diagnostics.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/lower/diagnostics.rs @@ -32,4 +32,5 @@ pub enum GenericArgsProhibitedReason { #[derive(Debug, PartialEq, Eq, Clone)] pub enum PathLoweringDiagnostic { GenericArgsProhibited { segment: u32, reason: GenericArgsProhibitedReason }, + ParenthesizedGenericArgsWithoutFnTrait { segment: u32 }, } diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/lower/path.rs b/src/tools/rust-analyzer/crates/hir-ty/src/lower/path.rs new file mode 100644 index 0000000000000..22c5bb9923f05 --- /dev/null +++ b/src/tools/rust-analyzer/crates/hir-ty/src/lower/path.rs @@ -0,0 +1,911 @@ +//! A wrapper around [`TyLoweringContext`] specifically for lowering paths. + +use std::iter; + +use chalk_ir::{cast::Cast, fold::Shift, BoundVar}; +use either::Either; +use hir_def::{ + data::TraitFlags, + expr_store::HygieneId, + generics::{TypeParamProvenance, WherePredicate, WherePredicateTypeTarget}, + path::{GenericArg, GenericArgs, Path, PathSegment, PathSegments}, + resolver::{ResolveValueResult, TypeNs, ValueNs}, + type_ref::{TypeBound, TypeRef}, + GenericDefId, GenericParamId, ItemContainerId, Lookup, TraitId, +}; +use smallvec::SmallVec; +use stdx::never; + +use crate::{ + consteval::unknown_const_as_generic, + error_lifetime, + generics::generics, + lower::{ + generic_arg_to_chalk, named_associated_type_shorthand_candidates, ImplTraitLoweringState, + }, + to_assoc_type_id, to_chalk_trait_id, to_placeholder_idx, + utils::associated_type_by_name_including_super_traits, + AliasEq, AliasTy, GenericArgsProhibitedReason, ImplTraitLoweringMode, Interner, + ParamLoweringMode, PathLoweringDiagnostic, ProjectionTy, QuantifiedWhereClause, Substitution, + TraitRef, Ty, TyBuilder, TyDefId, TyKind, TyLoweringContext, ValueTyDefId, WhereClause, +}; + +type CallbackData<'a> = Either< + super::PathDiagnosticCallbackData, + crate::infer::diagnostics::PathDiagnosticCallbackData<'a>, +>; + +// We cannot use `&mut dyn FnMut()` because of lifetime issues, and we don't want to use `Box` +// because of the allocation, so we create a lifetime-less callback, tailored for our needs. +pub(crate) struct PathDiagnosticCallback<'a> { + pub(crate) data: CallbackData<'a>, + pub(crate) callback: fn(&CallbackData<'_>, &mut TyLoweringContext<'_>, PathLoweringDiagnostic), +} + +pub(crate) struct PathLoweringContext<'a, 'b> { + ctx: &'a mut TyLoweringContext<'b>, + on_diagnostic: PathDiagnosticCallback<'a>, + path: &'a Path, + segments: PathSegments<'a>, + current_segment_idx: usize, + /// Contains the previous segment if `current_segment_idx == segments.len()` + current_or_prev_segment: PathSegment<'a>, +} + +impl<'a, 'b> PathLoweringContext<'a, 'b> { + #[inline] + pub(crate) fn new( + ctx: &'a mut TyLoweringContext<'b>, + on_diagnostic: PathDiagnosticCallback<'a>, + path: &'a Path, + ) -> Self { + let segments = path.segments(); + let first_segment = segments.first().unwrap_or(PathSegment::MISSING); + Self { + ctx, + on_diagnostic, + path, + segments, + current_segment_idx: 0, + current_or_prev_segment: first_segment, + } + } + + #[inline] + #[cold] + fn on_diagnostic(&mut self, diag: PathLoweringDiagnostic) { + (self.on_diagnostic.callback)(&self.on_diagnostic.data, self.ctx, diag); + } + + #[inline] + pub(crate) fn ty_ctx(&mut self) -> &mut TyLoweringContext<'b> { + self.ctx + } + + #[inline] + fn current_segment_u32(&self) -> u32 { + self.current_segment_idx as u32 + } + + #[inline] + fn skip_resolved_segment(&mut self) { + if !matches!(self.path, Path::LangItem(..)) { + // In lang items, the resolved "segment" is not one of the segments. Perhaps we should've put it + // point at -1, but I don't feel this is clearer. + self.current_segment_idx += 1; + } + self.update_current_segment(); + } + + #[inline] + fn update_current_segment(&mut self) { + self.current_or_prev_segment = + self.segments.get(self.current_segment_idx).unwrap_or(self.current_or_prev_segment); + } + + #[inline] + pub(crate) fn ignore_last_segment(&mut self) { + self.segments = self.segments.strip_last(); + } + + #[inline] + pub(crate) fn set_current_segment(&mut self, segment: usize) { + self.current_segment_idx = segment; + self.current_or_prev_segment = self + .segments + .get(segment) + .expect("invalid segment passed to PathLoweringContext::set_current_segment()"); + } + + pub(crate) fn lower_ty_relative_path( + &mut self, + ty: Ty, + // We need the original resolution to lower `Self::AssocTy` correctly + res: Option, + ) -> (Ty, Option) { + match self.segments.len() - self.current_segment_idx { + 0 => (ty, res), + 1 => { + // resolve unselected assoc types + (self.select_associated_type(res), None) + } + _ => { + // FIXME report error (ambiguous associated type) + (TyKind::Error.intern(Interner), None) + } + } + } + + fn prohibit_parenthesized_generic_args(&mut self) -> bool { + if let Some(generic_args) = self.current_or_prev_segment.args_and_bindings { + if generic_args.desugared_from_fn { + let segment = self.current_segment_u32(); + self.on_diagnostic( + PathLoweringDiagnostic::ParenthesizedGenericArgsWithoutFnTrait { segment }, + ); + return true; + } + } + false + } + + // When calling this, the current segment is the resolved segment (we don't advance it yet). + pub(crate) fn lower_partly_resolved_path( + &mut self, + resolution: TypeNs, + infer_args: bool, + ) -> (Ty, Option) { + let remaining_segments = self.segments.skip(self.current_segment_idx + 1); + + let ty = match resolution { + TypeNs::TraitId(trait_) => { + let ty = match remaining_segments.len() { + 1 => { + let trait_ref = self.lower_trait_ref_from_resolved_path( + trait_, + TyKind::Error.intern(Interner), + ); + + self.skip_resolved_segment(); + let segment = self.current_or_prev_segment; + let found = + self.ctx.db.trait_data(trait_).associated_type_by_name(segment.name); + + match found { + Some(associated_ty) => { + // FIXME: `substs_from_path_segment()` pushes `TyKind::Error` for every parent + // generic params. It's inefficient to splice the `Substitution`s, so we may want + // that method to optionally take parent `Substitution` as we already know them at + // this point (`trait_ref.substitution`). + let substitution = self.substs_from_path_segment( + associated_ty.into(), + false, + None, + ); + let len_self = + generics(self.ctx.db.upcast(), associated_ty.into()).len_self(); + let substitution = Substitution::from_iter( + Interner, + substitution + .iter(Interner) + .take(len_self) + .chain(trait_ref.substitution.iter(Interner)), + ); + TyKind::Alias(AliasTy::Projection(ProjectionTy { + associated_ty_id: to_assoc_type_id(associated_ty), + substitution, + })) + .intern(Interner) + } + None => { + // FIXME: report error (associated type not found) + TyKind::Error.intern(Interner) + } + } + } + 0 => { + // Trait object type without dyn; this should be handled in upstream. See + // `lower_path()`. + stdx::never!("unexpected fully resolved trait path"); + TyKind::Error.intern(Interner) + } + _ => { + // FIXME report error (ambiguous associated type) + TyKind::Error.intern(Interner) + } + }; + return (ty, None); + } + TypeNs::TraitAliasId(_) => { + // FIXME(trait_alias): Implement trait alias. + return (TyKind::Error.intern(Interner), None); + } + TypeNs::GenericParam(param_id) => match self.ctx.type_param_mode { + ParamLoweringMode::Placeholder => { + TyKind::Placeholder(to_placeholder_idx(self.ctx.db, param_id.into())) + } + ParamLoweringMode::Variable => { + let idx = match self + .ctx + .generics() + .expect("generics in scope") + .type_or_const_param_idx(param_id.into()) + { + None => { + never!("no matching generics"); + return (TyKind::Error.intern(Interner), None); + } + Some(idx) => idx, + }; + + TyKind::BoundVar(BoundVar::new(self.ctx.in_binders, idx)) + } + } + .intern(Interner), + TypeNs::SelfType(impl_id) => { + let generics = self.ctx.generics().expect("impl should have generic param scope"); + + match self.ctx.type_param_mode { + ParamLoweringMode::Placeholder => { + // `def` can be either impl itself or item within, and we need impl itself + // now. + let generics = generics.parent_or_self(); + let subst = generics.placeholder_subst(self.ctx.db); + self.ctx.db.impl_self_ty(impl_id).substitute(Interner, &subst) + } + ParamLoweringMode::Variable => { + let starting_from = match generics.def() { + GenericDefId::ImplId(_) => 0, + // `def` is an item within impl. We need to substitute `BoundVar`s but + // remember that they are for parent (i.e. impl) generic params so they + // come after our own params. + _ => generics.len_self(), + }; + TyBuilder::impl_self_ty(self.ctx.db, impl_id) + .fill_with_bound_vars(self.ctx.in_binders, starting_from) + .build() + } + } + } + TypeNs::AdtSelfType(adt) => { + let generics = generics(self.ctx.db.upcast(), adt.into()); + let substs = match self.ctx.type_param_mode { + ParamLoweringMode::Placeholder => generics.placeholder_subst(self.ctx.db), + ParamLoweringMode::Variable => { + generics.bound_vars_subst(self.ctx.db, self.ctx.in_binders) + } + }; + self.ctx.db.ty(adt.into()).substitute(Interner, &substs) + } + + TypeNs::AdtId(it) => self.lower_path_inner(it.into(), infer_args), + TypeNs::BuiltinType(it) => self.lower_path_inner(it.into(), infer_args), + TypeNs::TypeAliasId(it) => self.lower_path_inner(it.into(), infer_args), + // FIXME: report error + TypeNs::EnumVariantId(_) => return (TyKind::Error.intern(Interner), None), + }; + + self.skip_resolved_segment(); + self.lower_ty_relative_path(ty, Some(resolution)) + } + + fn handle_type_ns_resolution(&mut self, resolution: &TypeNs) { + let mut prohibit_generics_on_resolved = |reason| { + if self.current_or_prev_segment.args_and_bindings.is_some() { + let segment = self.current_segment_u32(); + self.on_diagnostic(PathLoweringDiagnostic::GenericArgsProhibited { + segment, + reason, + }); + } + }; + + match resolution { + TypeNs::SelfType(_) => { + prohibit_generics_on_resolved(GenericArgsProhibitedReason::SelfTy) + } + TypeNs::GenericParam(_) => { + prohibit_generics_on_resolved(GenericArgsProhibitedReason::TyParam) + } + TypeNs::AdtSelfType(_) => { + prohibit_generics_on_resolved(GenericArgsProhibitedReason::SelfTy) + } + TypeNs::BuiltinType(_) => { + prohibit_generics_on_resolved(GenericArgsProhibitedReason::PrimitiveTy) + } + TypeNs::AdtId(_) + | TypeNs::EnumVariantId(_) + | TypeNs::TypeAliasId(_) + | TypeNs::TraitId(_) + | TypeNs::TraitAliasId(_) => {} + } + } + + pub(crate) fn resolve_path_in_type_ns_fully(&mut self) -> Option { + let (res, unresolved) = self.resolve_path_in_type_ns()?; + if unresolved.is_some() { + return None; + } + Some(res) + } + + pub(crate) fn resolve_path_in_type_ns(&mut self) -> Option<(TypeNs, Option)> { + let (resolution, remaining_index, _, prefix_info) = self + .ctx + .resolver + .resolve_path_in_type_ns_with_prefix_info(self.ctx.db.upcast(), self.path)?; + + let segments = self.segments; + if segments.is_empty() || matches!(self.path, Path::LangItem(..)) { + // `segments.is_empty()` can occur with `self`. + return Some((resolution, remaining_index)); + } + + let (module_segments, resolved_segment_idx, enum_segment) = match remaining_index { + None if prefix_info.enum_variant => { + (segments.strip_last_two(), segments.len() - 1, Some(segments.len() - 2)) + } + None => (segments.strip_last(), segments.len() - 1, None), + Some(i) => (segments.take(i - 1), i - 1, None), + }; + + self.current_segment_idx = resolved_segment_idx; + self.current_or_prev_segment = + segments.get(resolved_segment_idx).expect("should have resolved segment"); + + if matches!(self.path, Path::BarePath(..)) { + // Bare paths cannot have generics, so skip them as an optimization. + return Some((resolution, remaining_index)); + } + + for (i, mod_segment) in module_segments.iter().enumerate() { + if mod_segment.args_and_bindings.is_some() { + self.on_diagnostic(PathLoweringDiagnostic::GenericArgsProhibited { + segment: i as u32, + reason: GenericArgsProhibitedReason::Module, + }); + } + } + + if let Some(enum_segment) = enum_segment { + if segments.get(enum_segment).is_some_and(|it| it.args_and_bindings.is_some()) + && segments.get(enum_segment + 1).is_some_and(|it| it.args_and_bindings.is_some()) + { + self.on_diagnostic(PathLoweringDiagnostic::GenericArgsProhibited { + segment: (enum_segment + 1) as u32, + reason: GenericArgsProhibitedReason::EnumVariant, + }); + } + } + + self.handle_type_ns_resolution(&resolution); + + Some((resolution, remaining_index)) + } + + pub(crate) fn resolve_path_in_value_ns( + &mut self, + hygiene_id: HygieneId, + ) -> Option { + let (res, prefix_info) = self.ctx.resolver.resolve_path_in_value_ns_with_prefix_info( + self.ctx.db.upcast(), + self.path, + hygiene_id, + )?; + + let segments = self.segments; + if segments.is_empty() || matches!(self.path, Path::LangItem(..)) { + // `segments.is_empty()` can occur with `self`. + return Some(res); + } + + let (mod_segments, enum_segment, resolved_segment_idx) = match res { + ResolveValueResult::Partial(_, unresolved_segment, _) => { + (segments.take(unresolved_segment - 1), None, unresolved_segment - 1) + } + ResolveValueResult::ValueNs(ValueNs::EnumVariantId(_), _) + if prefix_info.enum_variant => + { + (segments.strip_last_two(), segments.len().checked_sub(2), segments.len() - 1) + } + ResolveValueResult::ValueNs(..) => (segments.strip_last(), None, segments.len() - 1), + }; + + self.current_segment_idx = resolved_segment_idx; + self.current_or_prev_segment = + segments.get(resolved_segment_idx).expect("should have resolved segment"); + + for (i, mod_segment) in mod_segments.iter().enumerate() { + if mod_segment.args_and_bindings.is_some() { + self.on_diagnostic(PathLoweringDiagnostic::GenericArgsProhibited { + segment: i as u32, + reason: GenericArgsProhibitedReason::Module, + }); + } + } + + if let Some(enum_segment) = enum_segment { + if segments.get(enum_segment).is_some_and(|it| it.args_and_bindings.is_some()) + && segments.get(enum_segment + 1).is_some_and(|it| it.args_and_bindings.is_some()) + { + self.on_diagnostic(PathLoweringDiagnostic::GenericArgsProhibited { + segment: (enum_segment + 1) as u32, + reason: GenericArgsProhibitedReason::EnumVariant, + }); + } + } + + match &res { + ResolveValueResult::ValueNs(resolution, _) => { + let resolved_segment_idx = self.current_segment_u32(); + let resolved_segment = self.current_or_prev_segment; + + let mut prohibit_generics_on_resolved = |reason| { + if resolved_segment.args_and_bindings.is_some() { + self.on_diagnostic(PathLoweringDiagnostic::GenericArgsProhibited { + segment: resolved_segment_idx, + reason, + }); + } + }; + + match resolution { + ValueNs::ImplSelf(_) => { + prohibit_generics_on_resolved(GenericArgsProhibitedReason::SelfTy) + } + // FIXME: rustc generates E0107 (incorrect number of generic arguments) and not + // E0109 (generic arguments provided for a type that doesn't accept them) for + // consts and statics, presumably as a defense against future in which consts + // and statics can be generic, or just because it was easier for rustc implementors. + // That means we'll show the wrong error code. Because of us it's easier to do it + // this way :) + ValueNs::GenericParam(_) | ValueNs::ConstId(_) => { + prohibit_generics_on_resolved(GenericArgsProhibitedReason::Const) + } + ValueNs::StaticId(_) => { + prohibit_generics_on_resolved(GenericArgsProhibitedReason::Static) + } + ValueNs::FunctionId(_) | ValueNs::StructId(_) | ValueNs::EnumVariantId(_) => {} + ValueNs::LocalBinding(_) => {} + } + } + ResolveValueResult::Partial(resolution, _, _) => { + self.handle_type_ns_resolution(resolution); + } + }; + Some(res) + } + + fn select_associated_type(&mut self, res: Option) -> Ty { + let Some((generics, res)) = self.ctx.generics().zip(res) else { + return TyKind::Error.intern(Interner); + }; + let segment = self.current_or_prev_segment; + let ty = named_associated_type_shorthand_candidates( + self.ctx.db, + generics.def(), + res, + Some(segment.name.clone()), + move |name, t, associated_ty| { + let generics = self.ctx.generics().unwrap(); + + if name != segment.name { + return None; + } + + let parent_subst = t.substitution.clone(); + let parent_subst = match self.ctx.type_param_mode { + ParamLoweringMode::Placeholder => { + // if we're lowering to placeholders, we have to put them in now. + let s = generics.placeholder_subst(self.ctx.db); + s.apply(parent_subst, Interner) + } + ParamLoweringMode::Variable => { + // We need to shift in the bound vars, since + // `named_associated_type_shorthand_candidates` does not do that. + parent_subst.shifted_in_from(Interner, self.ctx.in_binders) + } + }; + + // FIXME: `substs_from_path_segment()` pushes `TyKind::Error` for every parent + // generic params. It's inefficient to splice the `Substitution`s, so we may want + // that method to optionally take parent `Substitution` as we already know them at + // this point (`t.substitution`). + let substs = self.substs_from_path_segment(associated_ty.into(), false, None); + + let len_self = + crate::generics::generics(self.ctx.db.upcast(), associated_ty.into()) + .len_self(); + + let substs = Substitution::from_iter( + Interner, + substs.iter(Interner).take(len_self).chain(parent_subst.iter(Interner)), + ); + + Some( + TyKind::Alias(AliasTy::Projection(ProjectionTy { + associated_ty_id: to_assoc_type_id(associated_ty), + substitution: substs, + })) + .intern(Interner), + ) + }, + ); + + ty.unwrap_or_else(|| TyKind::Error.intern(Interner)) + } + + fn lower_path_inner(&mut self, typeable: TyDefId, infer_args: bool) -> Ty { + let generic_def = match typeable { + TyDefId::BuiltinType(builtin) => return TyBuilder::builtin(builtin), + TyDefId::AdtId(it) => it.into(), + TyDefId::TypeAliasId(it) => it.into(), + }; + let substs = self.substs_from_path_segment(generic_def, infer_args, None); + self.ctx.db.ty(typeable).substitute(Interner, &substs) + } + + /// Collect generic arguments from a path into a `Substs`. See also + /// `create_substs_for_ast_path` and `def_to_ty` in rustc. + pub(crate) fn substs_from_path( + &mut self, + // Note that we don't call `db.value_type(resolved)` here, + // `ValueTyDefId` is just a convenient way to pass generics and + // special-case enum variants + resolved: ValueTyDefId, + infer_args: bool, + ) -> Substitution { + let prev_current_segment_idx = self.current_segment_idx; + let prev_current_segment = self.current_or_prev_segment; + + let generic_def = match resolved { + ValueTyDefId::FunctionId(it) => it.into(), + ValueTyDefId::StructId(it) => it.into(), + ValueTyDefId::UnionId(it) => it.into(), + ValueTyDefId::ConstId(it) => it.into(), + ValueTyDefId::StaticId(_) => return Substitution::empty(Interner), + ValueTyDefId::EnumVariantId(var) => { + // the generic args for an enum variant may be either specified + // on the segment referring to the enum, or on the segment + // referring to the variant. So `Option::::None` and + // `Option::None::` are both allowed (though the former is + // FIXME: This isn't strictly correct, enum variants may be used not through the enum + // (via `use Enum::Variant`). The resolver returns whether they were, but we don't have its result + // available here. The worst that can happen is that we will show some confusing diagnostics to the user, + // if generics exist on the module and they don't match with the variant. + // preferred). See also `def_ids_for_path_segments` in rustc. + // + // `wrapping_sub(1)` will return a number which `get` will return None for if current_segment_idx<2. + // This simplifies the code a bit. + let penultimate_idx = self.current_segment_idx.wrapping_sub(1); + let penultimate = self.segments.get(penultimate_idx); + if let Some(penultimate) = penultimate { + if self.current_or_prev_segment.args_and_bindings.is_none() + && penultimate.args_and_bindings.is_some() + { + self.current_segment_idx = penultimate_idx; + self.current_or_prev_segment = penultimate; + } + } + var.lookup(self.ctx.db.upcast()).parent.into() + } + }; + let result = self.substs_from_path_segment(generic_def, infer_args, None); + self.current_segment_idx = prev_current_segment_idx; + self.current_or_prev_segment = prev_current_segment; + result + } + + pub(crate) fn substs_from_path_segment( + &mut self, + def: GenericDefId, + infer_args: bool, + explicit_self_ty: Option, + ) -> Substitution { + let prohibit_parens = match def { + GenericDefId::TraitId(trait_) => { + let trait_data = self.ctx.db.trait_data(trait_); + !trait_data.flags.contains(TraitFlags::RUSTC_PAREN_SUGAR) + } + _ => true, + }; + if prohibit_parens && self.prohibit_parenthesized_generic_args() { + return TyBuilder::unknown_subst(self.ctx.db, def); + } + + self.substs_from_args_and_bindings( + self.current_or_prev_segment.args_and_bindings, + def, + infer_args, + explicit_self_ty, + ) + } + + pub(super) fn substs_from_args_and_bindings( + &mut self, + args_and_bindings: Option<&GenericArgs>, + def: GenericDefId, + infer_args: bool, + explicit_self_ty: Option, + ) -> Substitution { + // Order is + // - Optional Self parameter + // - Lifetime parameters + // - Type or Const parameters + // - Parent parameters + let def_generics = generics(self.ctx.db.upcast(), def); + let ( + parent_params, + self_param, + type_params, + const_params, + impl_trait_params, + lifetime_params, + ) = def_generics.provenance_split(); + let item_len = + self_param as usize + type_params + const_params + impl_trait_params + lifetime_params; + let total_len = parent_params + item_len; + + let mut substs = Vec::new(); + + // we need to iterate the lifetime and type/const params separately as our order of them + // differs from the supplied syntax + + let ty_error = || TyKind::Error.intern(Interner).cast(Interner); + let mut def_toc_iter = def_generics.iter_self_type_or_consts_id(); + let fill_self_param = || { + if self_param { + let self_ty = explicit_self_ty.map(|x| x.cast(Interner)).unwrap_or_else(ty_error); + + if let Some(id) = def_toc_iter.next() { + assert!(matches!(id, GenericParamId::TypeParamId(_))); + substs.push(self_ty); + } + } + }; + let mut had_explicit_args = false; + + if let Some(&GenericArgs { ref args, has_self_type, .. }) = args_and_bindings { + // Fill in the self param first + if has_self_type && self_param { + had_explicit_args = true; + if let Some(id) = def_toc_iter.next() { + assert!(matches!(id, GenericParamId::TypeParamId(_))); + had_explicit_args = true; + if let GenericArg::Type(ty) = &args[0] { + substs.push(self.ctx.lower_ty(*ty).cast(Interner)); + } + } + } else { + fill_self_param() + }; + + // Then fill in the supplied lifetime args, or error lifetimes if there are too few + // (default lifetimes aren't a thing) + for arg in args + .iter() + .filter_map(|arg| match arg { + GenericArg::Lifetime(arg) => Some(self.ctx.lower_lifetime(arg)), + _ => None, + }) + .chain(iter::repeat(error_lifetime())) + .take(lifetime_params) + { + substs.push(arg.cast(Interner)); + } + + let skip = if has_self_type { 1 } else { 0 }; + // Fill in supplied type and const args + // Note if non-lifetime args are provided, it should be all of them, but we can't rely on that + for (arg, id) in args + .iter() + .filter(|arg| !matches!(arg, GenericArg::Lifetime(_))) + .skip(skip) + .take(type_params + const_params) + .zip(def_toc_iter) + { + had_explicit_args = true; + let arg = generic_arg_to_chalk( + self.ctx.db, + id, + arg, + self.ctx, + self.ctx.types_map, + |ctx, type_ref| ctx.lower_ty(type_ref), + |ctx, const_ref, ty| ctx.lower_const(const_ref, ty), + |ctx, lifetime_ref| ctx.lower_lifetime(lifetime_ref), + ); + substs.push(arg); + } + } else { + fill_self_param(); + } + + let param_to_err = |id| match id { + GenericParamId::ConstParamId(x) => { + unknown_const_as_generic(self.ctx.db.const_param_ty(x)) + } + GenericParamId::TypeParamId(_) => ty_error(), + GenericParamId::LifetimeParamId(_) => error_lifetime().cast(Interner), + }; + // handle defaults. In expression or pattern path segments without + // explicitly specified type arguments, missing type arguments are inferred + // (i.e. defaults aren't used). + // Generic parameters for associated types are not supposed to have defaults, so we just + // ignore them. + let is_assoc_ty = || match def { + GenericDefId::TypeAliasId(id) => { + matches!(id.lookup(self.ctx.db.upcast()).container, ItemContainerId::TraitId(_)) + } + _ => false, + }; + let fill_defaults = (!infer_args || had_explicit_args) && !is_assoc_ty(); + if fill_defaults { + let defaults = &*self.ctx.db.generic_defaults(def); + let (item, _parent) = defaults.split_at(item_len); + let parent_from = item_len - substs.len(); + + let mut rem = + def_generics.iter_id().skip(substs.len()).map(param_to_err).collect::>(); + // Fill in defaults for type/const params + for (idx, default_ty) in item[substs.len()..].iter().enumerate() { + // each default can depend on the previous parameters + let substs_so_far = Substitution::from_iter( + Interner, + substs.iter().cloned().chain(rem[idx..].iter().cloned()), + ); + substs.push(default_ty.clone().substitute(Interner, &substs_so_far)); + } + // Fill in remaining parent params + substs.extend(rem.drain(parent_from..)); + } else { + // Fill in remaining def params and parent params + substs.extend(def_generics.iter_id().skip(substs.len()).map(param_to_err)); + } + + assert_eq!(substs.len(), total_len, "expected {} substs, got {}", total_len, substs.len()); + Substitution::from_iter(Interner, substs) + } + + pub(crate) fn lower_trait_ref_from_resolved_path( + &mut self, + resolved: TraitId, + explicit_self_ty: Ty, + ) -> TraitRef { + let substs = self.trait_ref_substs_from_path(resolved, explicit_self_ty); + TraitRef { trait_id: to_chalk_trait_id(resolved), substitution: substs } + } + + fn trait_ref_substs_from_path( + &mut self, + resolved: TraitId, + explicit_self_ty: Ty, + ) -> Substitution { + self.substs_from_path_segment(resolved.into(), false, Some(explicit_self_ty)) + } + + pub(super) fn assoc_type_bindings_from_type_bound<'c>( + mut self, + bound: &'c TypeBound, + trait_ref: TraitRef, + ) -> Option + use<'a, 'b, 'c>> { + self.current_or_prev_segment.args_and_bindings.map(|args_and_bindings| { + args_and_bindings.bindings.iter().flat_map(move |binding| { + let found = associated_type_by_name_including_super_traits( + self.ctx.db, + trait_ref.clone(), + &binding.name, + ); + let (super_trait_ref, associated_ty) = match found { + None => return SmallVec::new(), + Some(t) => t, + }; + // FIXME: `substs_from_path_segment()` pushes `TyKind::Error` for every parent + // generic params. It's inefficient to splice the `Substitution`s, so we may want + // that method to optionally take parent `Substitution` as we already know them at + // this point (`super_trait_ref.substitution`). + let substitution = self.substs_from_args_and_bindings( + binding.args.as_ref(), + associated_ty.into(), + false, // this is not relevant + Some(super_trait_ref.self_type_parameter(Interner)), + ); + let self_params = generics(self.ctx.db.upcast(), associated_ty.into()).len_self(); + let substitution = Substitution::from_iter( + Interner, + substitution + .iter(Interner) + .take(self_params) + .chain(super_trait_ref.substitution.iter(Interner)), + ); + let projection_ty = ProjectionTy { + associated_ty_id: to_assoc_type_id(associated_ty), + substitution, + }; + let mut predicates: SmallVec<[_; 1]> = SmallVec::with_capacity( + binding.type_ref.as_ref().map_or(0, |_| 1) + binding.bounds.len(), + ); + if let Some(type_ref) = binding.type_ref { + match (&self.ctx.types_map[type_ref], self.ctx.impl_trait_mode.mode) { + (TypeRef::ImplTrait(_), ImplTraitLoweringMode::Disallowed) => (), + (_, ImplTraitLoweringMode::Disallowed | ImplTraitLoweringMode::Opaque) => { + let ty = self.ctx.lower_ty(type_ref); + let alias_eq = + AliasEq { alias: AliasTy::Projection(projection_ty.clone()), ty }; + predicates + .push(crate::wrap_empty_binders(WhereClause::AliasEq(alias_eq))); + } + (_, ImplTraitLoweringMode::Param | ImplTraitLoweringMode::Variable) => { + // Find the generic index for the target of our `bound` + let target_param_idx = + self.ctx.resolver.where_predicates_in_scope().find_map(|(p, _)| { + match p { + WherePredicate::TypeBound { + target: WherePredicateTypeTarget::TypeOrConstParam(idx), + bound: b, + } if b == bound => Some(idx), + _ => None, + } + }); + let ty = if let Some(target_param_idx) = target_param_idx { + let mut counter = 0; + let generics = self.ctx.generics().expect("generics in scope"); + for (idx, data) in generics.iter_self_type_or_consts() { + // Count the number of `impl Trait` things that appear before + // the target of our `bound`. + // Our counter within `impl_trait_mode` should be that number + // to properly lower each types within `type_ref` + if data.type_param().is_some_and(|p| { + p.provenance == TypeParamProvenance::ArgumentImplTrait + }) { + counter += 1; + } + if idx == *target_param_idx { + break; + } + } + let mut ext = TyLoweringContext::new_maybe_unowned( + self.ctx.db, + self.ctx.resolver, + self.ctx.types_map, + self.ctx.types_source_map, + self.ctx.owner, + ) + .with_type_param_mode(self.ctx.type_param_mode); + match self.ctx.impl_trait_mode.mode { + ImplTraitLoweringMode::Param => { + ext.impl_trait_mode = + ImplTraitLoweringState::param(counter); + } + ImplTraitLoweringMode::Variable => { + ext.impl_trait_mode = + ImplTraitLoweringState::variable(counter); + } + _ => unreachable!(), + } + let ty = ext.lower_ty(type_ref); + self.ctx.diagnostics.extend(ext.diagnostics); + ty + } else { + self.ctx.lower_ty(type_ref) + }; + + let alias_eq = + AliasEq { alias: AliasTy::Projection(projection_ty.clone()), ty }; + predicates + .push(crate::wrap_empty_binders(WhereClause::AliasEq(alias_eq))); + } + } + } + for bound in binding.bounds.iter() { + predicates.extend(self.ctx.lower_type_bound( + bound, + TyKind::Alias(AliasTy::Projection(projection_ty.clone())).intern(Interner), + false, + )); + } + predicates + }) + }) + } +} diff --git a/src/tools/rust-analyzer/crates/hir/src/diagnostics.rs b/src/tools/rust-analyzer/crates/hir/src/diagnostics.rs index 64e982c42d7f6..f6c0bdc6a62c7 100644 --- a/src/tools/rust-analyzer/crates/hir/src/diagnostics.rs +++ b/src/tools/rust-analyzer/crates/hir/src/diagnostics.rs @@ -111,6 +111,7 @@ diagnostics![ UnusedMut, UnusedVariable, GenericArgsProhibited, + ParenthesizedGenericArgsWithoutFnTrait, ]; #[derive(Debug)] @@ -413,6 +414,11 @@ pub struct GenericArgsProhibited { pub reason: GenericArgsProhibitedReason, } +#[derive(Debug)] +pub struct ParenthesizedGenericArgsWithoutFnTrait { + pub args: InFile>, +} + impl AnyDiagnostic { pub(crate) fn body_validation_diagnostic( db: &dyn HirDatabase, @@ -702,8 +708,8 @@ impl AnyDiagnostic { diag: &PathLoweringDiagnostic, path: InFile, ) -> Option { - Some(match diag { - &PathLoweringDiagnostic::GenericArgsProhibited { segment, reason } => { + Some(match *diag { + PathLoweringDiagnostic::GenericArgsProhibited { segment, reason } => { let segment = hir_segment_to_ast_segment(&path.value, segment)?; let args = if let Some(generics) = segment.generic_arg_list() { AstPtr::new(&generics).wrap_left() @@ -713,6 +719,12 @@ impl AnyDiagnostic { let args = path.with_value(args); GenericArgsProhibited { args, reason }.into() } + PathLoweringDiagnostic::ParenthesizedGenericArgsWithoutFnTrait { segment } => { + let segment = hir_segment_to_ast_segment(&path.value, segment)?; + let args = AstPtr::new(&segment.parenthesized_arg_list()?); + let args = path.with_value(args); + ParenthesizedGenericArgsWithoutFnTrait { args }.into() + } }) } diff --git a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/parenthesized_generic_args_without_fn_trait.rs b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/parenthesized_generic_args_without_fn_trait.rs new file mode 100644 index 0000000000000..ccf5172341836 --- /dev/null +++ b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/parenthesized_generic_args_without_fn_trait.rs @@ -0,0 +1,59 @@ +use crate::{Diagnostic, DiagnosticCode, DiagnosticsContext}; + +// Diagnostic: parenthesized-generic-args-without-fn-trait +// +// This diagnostic is shown when a `Fn`-trait-style generic parameters (`Trait(A, B) -> C`) +// was used on non-`Fn` trait/type. +pub(crate) fn parenthesized_generic_args_without_fn_trait( + ctx: &DiagnosticsContext<'_>, + d: &hir::ParenthesizedGenericArgsWithoutFnTrait, +) -> Diagnostic { + Diagnostic::new_with_syntax_node_ptr( + ctx, + DiagnosticCode::RustcHardError("E0214"), + "parenthesized type parameters may only be used with a `Fn` trait", + d.args.map(Into::into), + ) +} + +#[cfg(test)] +mod tests { + use crate::tests::check_diagnostics; + + #[test] + fn fn_traits_work() { + check_diagnostics( + r#" +//- minicore: async_fn, fn +fn foo< + A: Fn(), + B: FnMut() -> i32, + C: FnOnce(&str, bool), + D: AsyncFn::(u32) -> u32, + E: AsyncFnMut(), + F: AsyncFnOnce() -> bool, +>() {} + "#, + ); + } + + #[test] + fn non_fn_trait() { + check_diagnostics( + r#" +struct Struct(T); +enum Enum { EnumVariant(T) } +type TypeAlias = bool; + +type Foo = TypeAlias() -> bool; + // ^^ error: parenthesized type parameters may only be used with a `Fn` trait + +fn foo(_a: Struct(i32)) { + // ^^^^^ error: parenthesized type parameters may only be used with a `Fn` trait + let _ = ::EnumVariant(0); + // ^^^^^^^ error: parenthesized type parameters may only be used with a `Fn` trait +} + "#, + ); + } +} diff --git a/src/tools/rust-analyzer/crates/ide-diagnostics/src/lib.rs b/src/tools/rust-analyzer/crates/ide-diagnostics/src/lib.rs index 50c91a69602c1..3ea41aa7e859c 100644 --- a/src/tools/rust-analyzer/crates/ide-diagnostics/src/lib.rs +++ b/src/tools/rust-analyzer/crates/ide-diagnostics/src/lib.rs @@ -43,6 +43,7 @@ mod handlers { pub(crate) mod mutability_errors; pub(crate) mod no_such_field; pub(crate) mod non_exhaustive_let; + pub(crate) mod parenthesized_generic_args_without_fn_trait; pub(crate) mod private_assoc_item; pub(crate) mod private_field; pub(crate) mod remove_trailing_return; @@ -466,7 +467,12 @@ pub fn semantic_diagnostics( Some(it) => it, None => continue, }, - AnyDiagnostic::GenericArgsProhibited(d) => handlers::generic_args_prohibited::generic_args_prohibited(&ctx, &d) + AnyDiagnostic::GenericArgsProhibited(d) => { + handlers::generic_args_prohibited::generic_args_prohibited(&ctx, &d) + } + AnyDiagnostic::ParenthesizedGenericArgsWithoutFnTrait(d) => { + handlers::parenthesized_generic_args_without_fn_trait::parenthesized_generic_args_without_fn_trait(&ctx, &d) + } }; res.push(d) } diff --git a/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/test_data/highlight_general.html b/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/test_data/highlight_general.html index 9be7c92fc798a..9477d0d1b8770 100644 --- a/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/test_data/highlight_general.html +++ b/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/test_data/highlight_general.html @@ -48,17 +48,6 @@ 
use inner::{self as inner_mod};
 mod inner {}
 
-pub mod ops {
-    #[lang = "fn_once"]
-    pub trait FnOnce<Args> {}
-
-    #[lang = "fn_mut"]
-    pub trait FnMut<Args>: FnOnce<Args> {}
-
-    #[lang = "fn"]
-    pub trait Fn<Args>: FnMut<Args> {}
-}
-
 struct Foo {
     x: u32,
 }
@@ -125,8 +114,8 @@
     FOO
 }
 
-use ops::Fn;
-fn baz<F: Fn() -> ()>(f: F) {
+use core::ops::Fn;
+fn baz<F: Fn() -> ()>(f: F) {
     f()
 }
 
diff --git a/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/tests.rs b/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/tests.rs
index b9520ae2bba27..75dc5235625b1 100644
--- a/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/tests.rs
+++ b/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/tests.rs
@@ -136,22 +136,11 @@ use self::foo as bar;
 fn test_highlighting() {
     check_highlighting(
         r#"
-//- minicore: derive, copy
+//- minicore: derive, copy, fn
 //- /main.rs crate:main deps:foo
 use inner::{self as inner_mod};
 mod inner {}
 
-pub mod ops {
-    #[lang = "fn_once"]
-    pub trait FnOnce {}
-
-    #[lang = "fn_mut"]
-    pub trait FnMut: FnOnce {}
-
-    #[lang = "fn"]
-    pub trait Fn: FnMut {}
-}
-
 struct Foo {
     x: u32,
 }
@@ -218,7 +207,7 @@ fn const_param() -> usize {
     FOO
 }
 
-use ops::Fn;
+use core::ops::Fn;
 fn baz ()>(f: F) {
     f()
 }
diff --git a/src/tools/rust-analyzer/crates/intern/src/symbol/symbols.rs b/src/tools/rust-analyzer/crates/intern/src/symbol/symbols.rs
index a53da69d9013b..1958e3f7b1d80 100644
--- a/src/tools/rust-analyzer/crates/intern/src/symbol/symbols.rs
+++ b/src/tools/rust-analyzer/crates/intern/src/symbol/symbols.rs
@@ -13,15 +13,35 @@ use crate::{
 
 macro_rules! define_symbols {
     (@WITH_NAME: $($alias:ident = $value:literal,)* @PLAIN: $($name:ident,)*) => {
-        // Ideally we would be emitting `const` here, but then we no longer have stable addresses
-        // which is what we are relying on for equality! In the future if consts can refer to
-        // statics we should swap these for `const`s and have the string literal being pointed
-        // to be statics to refer to such that their address is stable.
+        // We define symbols as both `const`s and `static`s because some const code requires const symbols,
+        // but code from before the transition relies on the lifetime of the predefined symbols and making them
+        // `const`s make it error (because now they're temporaries). In the future we probably should only
+        // use consts.
+
+        /// Predefined symbols as `const`s (instead of the default `static`s).
+        pub mod consts {
+            use super::{Symbol, TaggedArcPtr};
+
+            // The strings should be in `static`s so that symbol equality holds.
+            $(
+                pub const $name: Symbol = {
+                    static SYMBOL_STR: &str = stringify!($name);
+                    Symbol { repr: TaggedArcPtr::non_arc(&SYMBOL_STR) }
+                };
+            )*
+            $(
+                pub const $alias: Symbol = {
+                    static SYMBOL_STR: &str = $value;
+                    Symbol { repr: TaggedArcPtr::non_arc(&SYMBOL_STR) }
+                };
+            )*
+        }
+
         $(
-            pub static $name: Symbol = Symbol { repr: TaggedArcPtr::non_arc(&stringify!($name)) };
+            pub static $name: Symbol = consts::$name;
         )*
         $(
-            pub static $alias: Symbol = Symbol { repr: TaggedArcPtr::non_arc(&$value) };
+            pub static $alias: Symbol = consts::$alias;
         )*
 
 
@@ -427,6 +447,7 @@ define_symbols! {
     rustc_layout_scalar_valid_range_start,
     rustc_legacy_const_generics,
     rustc_macro_transparency,
+    rustc_paren_sugar,
     rustc_reallocator,
     rustc_reservation_impl,
     rustc_safe_intrinsic,
diff --git a/src/tools/rust-analyzer/crates/test-utils/src/minicore.rs b/src/tools/rust-analyzer/crates/test-utils/src/minicore.rs
index 4ed68d18e8071..202afebde70fb 100644
--- a/src/tools/rust-analyzer/crates/test-utils/src/minicore.rs
+++ b/src/tools/rust-analyzer/crates/test-utils/src/minicore.rs
@@ -647,18 +647,21 @@ pub mod ops {
 
         #[lang = "fn"]
         #[fundamental]
+        #[rustc_paren_sugar]
         pub trait Fn: FnMut {
             extern "rust-call" fn call(&self, args: Args) -> Self::Output;
         }
 
         #[lang = "fn_mut"]
         #[fundamental]
+        #[rustc_paren_sugar]
         pub trait FnMut: FnOnce {
             extern "rust-call" fn call_mut(&mut self, args: Args) -> Self::Output;
         }
 
         #[lang = "fn_once"]
         #[fundamental]
+        #[rustc_paren_sugar]
         pub trait FnOnce {
             #[lang = "fn_once_output"]
             type Output;
@@ -736,12 +739,14 @@ pub mod ops {
 
         #[lang = "async_fn"]
         #[fundamental]
+        #[rustc_paren_sugar]
         pub trait AsyncFn: AsyncFnMut {
             extern "rust-call" fn async_call(&self, args: Args) -> Self::CallRefFuture<'_>;
         }
 
         #[lang = "async_fn_mut"]
         #[fundamental]
+        #[rustc_paren_sugar]
         pub trait AsyncFnMut: AsyncFnOnce {
             #[lang = "call_ref_future"]
             type CallRefFuture<'a>: Future
@@ -752,6 +757,7 @@ pub mod ops {
 
         #[lang = "async_fn_once"]
         #[fundamental]
+        #[rustc_paren_sugar]
         pub trait AsyncFnOnce {
             #[lang = "async_fn_once_output"]
             type Output;

From 13003100f803419307ada53620d00aa51ea678db Mon Sep 17 00:00:00 2001
From: Nicholas Nethercote 
Date: Tue, 11 Feb 2025 16:33:17 +1100
Subject: [PATCH 59/75] Refactor `apply_effects_in_block`.

Very minor changes that will make the next few commits easier to follow.
---
 .../src/framework/direction.rs                | 20 +++++++------------
 1 file changed, 7 insertions(+), 13 deletions(-)

diff --git a/compiler/rustc_mir_dataflow/src/framework/direction.rs b/compiler/rustc_mir_dataflow/src/framework/direction.rs
index 07517d7edab01..528debcaba345 100644
--- a/compiler/rustc_mir_dataflow/src/framework/direction.rs
+++ b/compiler/rustc_mir_dataflow/src/framework/direction.rs
@@ -112,14 +112,11 @@ impl Direction for Backward {
 
                 mir::TerminatorKind::SwitchInt { targets: _, ref discr } => {
                     if let Some(mut data) = analysis.get_switch_int_data(block, discr) {
-                        let values = &body.basic_blocks.switch_sources()[&(block, pred)];
-                        let targets =
-                            values.iter().map(|&value| SwitchIntTarget { value, target: block });
-
                         let mut tmp = analysis.bottom_value(body);
-                        for target in targets {
-                            tmp.clone_from(&exit_state);
-                            analysis.apply_switch_int_edge_effect(&mut data, &mut tmp, target);
+                        for &value in &body.basic_blocks.switch_sources()[&(block, pred)] {
+                            tmp.clone_from(exit_state);
+                            let si_target = SwitchIntTarget { value, target: block };
+                            analysis.apply_switch_int_edge_effect(&mut data, &mut tmp, si_target);
                             propagate(pred, &tmp);
                         }
                     } else {
@@ -292,12 +289,9 @@ impl Direction for Forward {
                 if let Some(mut data) = analysis.get_switch_int_data(block, discr) {
                     let mut tmp = analysis.bottom_value(body);
                     for (value, target) in targets.iter() {
-                        tmp.clone_from(&exit_state);
-                        analysis.apply_switch_int_edge_effect(
-                            &mut data,
-                            &mut tmp,
-                            SwitchIntTarget { value: Some(value), target },
-                        );
+                        tmp.clone_from(exit_state);
+                        let si_target = SwitchIntTarget { value: Some(value), target };
+                        analysis.apply_switch_int_edge_effect(&mut data, &mut tmp, si_target);
                         propagate(target, &tmp);
                     }
 

From 23dbff88f6ecf7b92129ec3cfc41971b5cd9579c Mon Sep 17 00:00:00 2001
From: Nicholas Nethercote 
Date: Thu, 13 Feb 2025 10:46:34 +1100
Subject: [PATCH 60/75] Add a useful comment.

---
 compiler/rustc_middle/src/mir/basic_blocks.rs | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/compiler/rustc_middle/src/mir/basic_blocks.rs b/compiler/rustc_middle/src/mir/basic_blocks.rs
index c32cf5f825334..5c67083037609 100644
--- a/compiler/rustc_middle/src/mir/basic_blocks.rs
+++ b/compiler/rustc_middle/src/mir/basic_blocks.rs
@@ -20,6 +20,13 @@ pub struct BasicBlocks<'tcx> {
 // Typically 95%+ of basic blocks have 4 or fewer predecessors.
 type Predecessors = IndexVec>;
 
+/// Each `(target, switch)` entry in the map contains a list of switch values
+/// that lead to a `target` block from a `switch` block.
+///
+/// Note: this type is currently never instantiated, because it's only used for
+/// `BasicBlocks::switch_sources`, which is only called by backwards analyses
+/// that do `SwitchInt` handling, and we don't have any of those, not even in
+/// tests. See #95120 and #94576.
 type SwitchSources = FxHashMap<(BasicBlock, BasicBlock), SmallVec<[Option; 1]>>;
 
 #[derive(Clone, Default, Debug)]
@@ -70,8 +77,8 @@ impl<'tcx> BasicBlocks<'tcx> {
         })
     }
 
-    /// `switch_sources()[&(target, switch)]` returns a list of switch
-    /// values that lead to a `target` block from a `switch` block.
+    /// Returns info about switch values that lead from one block to another
+    /// block. See `SwitchSources`.
     #[inline]
     pub fn switch_sources(&self) -> &SwitchSources {
         self.cache.switch_sources.get_or_init(|| {

From 8403d39dce2b6875381974a3f413c0c610f2ca1a Mon Sep 17 00:00:00 2001
From: Nicholas Nethercote 
Date: Fri, 14 Feb 2025 09:54:01 +1100
Subject: [PATCH 61/75] Add `SwitchTargetValue`.

This is much clearer than `Option`.
---
 compiler/rustc_middle/src/mir/basic_blocks.rs | 20 ++++++++++++++++---
 compiler/rustc_middle/src/mir/mod.rs          |  2 +-
 .../src/framework/direction.rs                |  9 ++++++---
 .../rustc_mir_dataflow/src/framework/mod.rs   |  6 ++++--
 .../src/impls/initialized.rs                  |  8 +++++---
 5 files changed, 33 insertions(+), 12 deletions(-)

diff --git a/compiler/rustc_middle/src/mir/basic_blocks.rs b/compiler/rustc_middle/src/mir/basic_blocks.rs
index 5c67083037609..107c3198525a1 100644
--- a/compiler/rustc_middle/src/mir/basic_blocks.rs
+++ b/compiler/rustc_middle/src/mir/basic_blocks.rs
@@ -27,7 +27,15 @@ type Predecessors = IndexVec>;
 /// `BasicBlocks::switch_sources`, which is only called by backwards analyses
 /// that do `SwitchInt` handling, and we don't have any of those, not even in
 /// tests. See #95120 and #94576.
-type SwitchSources = FxHashMap<(BasicBlock, BasicBlock), SmallVec<[Option; 1]>>;
+type SwitchSources = FxHashMap<(BasicBlock, BasicBlock), SmallVec<[SwitchTargetValue; 1]>>;
+
+#[derive(Debug, Clone, Copy)]
+pub enum SwitchTargetValue {
+    // A normal switch value.
+    Normal(u128),
+    // The final "otherwise" fallback value.
+    Otherwise,
+}
 
 #[derive(Clone, Default, Debug)]
 struct Cache {
@@ -89,9 +97,15 @@ impl<'tcx> BasicBlocks<'tcx> {
                 }) = &data.terminator
                 {
                     for (value, target) in targets.iter() {
-                        switch_sources.entry((target, bb)).or_default().push(Some(value));
+                        switch_sources
+                            .entry((target, bb))
+                            .or_default()
+                            .push(SwitchTargetValue::Normal(value));
                     }
-                    switch_sources.entry((targets.otherwise(), bb)).or_default().push(None);
+                    switch_sources
+                        .entry((targets.otherwise(), bb))
+                        .or_default()
+                        .push(SwitchTargetValue::Otherwise);
                 }
             }
             switch_sources
diff --git a/compiler/rustc_middle/src/mir/mod.rs b/compiler/rustc_middle/src/mir/mod.rs
index 795cfcef2d36d..cc22cabcb3e80 100644
--- a/compiler/rustc_middle/src/mir/mod.rs
+++ b/compiler/rustc_middle/src/mir/mod.rs
@@ -7,7 +7,7 @@ use std::fmt::{self, Debug, Formatter};
 use std::ops::{Index, IndexMut};
 use std::{iter, mem};
 
-pub use basic_blocks::BasicBlocks;
+pub use basic_blocks::{BasicBlocks, SwitchTargetValue};
 use either::Either;
 use polonius_engine::Atom;
 use rustc_abi::{FieldIdx, VariantIdx};
diff --git a/compiler/rustc_mir_dataflow/src/framework/direction.rs b/compiler/rustc_mir_dataflow/src/framework/direction.rs
index 528debcaba345..02b2bbb35076f 100644
--- a/compiler/rustc_mir_dataflow/src/framework/direction.rs
+++ b/compiler/rustc_mir_dataflow/src/framework/direction.rs
@@ -1,6 +1,8 @@
 use std::ops::RangeInclusive;
 
-use rustc_middle::mir::{self, BasicBlock, CallReturnPlaces, Location, TerminatorEdges};
+use rustc_middle::mir::{
+    self, BasicBlock, CallReturnPlaces, Location, SwitchTargetValue, TerminatorEdges,
+};
 
 use super::visitor::ResultsVisitor;
 use super::{Analysis, Effect, EffectIndex, Results, SwitchIntTarget};
@@ -290,7 +292,8 @@ impl Direction for Forward {
                     let mut tmp = analysis.bottom_value(body);
                     for (value, target) in targets.iter() {
                         tmp.clone_from(exit_state);
-                        let si_target = SwitchIntTarget { value: Some(value), target };
+                        let si_target =
+                            SwitchIntTarget { value: SwitchTargetValue::Normal(value), target };
                         analysis.apply_switch_int_edge_effect(&mut data, &mut tmp, si_target);
                         propagate(target, &tmp);
                     }
@@ -302,7 +305,7 @@ impl Direction for Forward {
                     analysis.apply_switch_int_edge_effect(
                         &mut data,
                         exit_state,
-                        SwitchIntTarget { value: None, target: otherwise },
+                        SwitchIntTarget { value: SwitchTargetValue::Otherwise, target: otherwise },
                     );
                     propagate(otherwise, exit_state);
                 } else {
diff --git a/compiler/rustc_mir_dataflow/src/framework/mod.rs b/compiler/rustc_mir_dataflow/src/framework/mod.rs
index 60c5cb0cae8ad..14630991cd6c8 100644
--- a/compiler/rustc_mir_dataflow/src/framework/mod.rs
+++ b/compiler/rustc_mir_dataflow/src/framework/mod.rs
@@ -38,7 +38,9 @@ use rustc_data_structures::work_queue::WorkQueue;
 use rustc_index::bit_set::{DenseBitSet, MixedBitSet};
 use rustc_index::{Idx, IndexVec};
 use rustc_middle::bug;
-use rustc_middle::mir::{self, BasicBlock, CallReturnPlaces, Location, TerminatorEdges, traversal};
+use rustc_middle::mir::{
+    self, BasicBlock, CallReturnPlaces, Location, SwitchTargetValue, TerminatorEdges, traversal,
+};
 use rustc_middle::ty::TyCtxt;
 use tracing::error;
 
@@ -431,7 +433,7 @@ impl EffectIndex {
 }
 
 pub struct SwitchIntTarget {
-    pub value: Option,
+    pub value: SwitchTargetValue,
     pub target: BasicBlock,
 }
 
diff --git a/compiler/rustc_mir_dataflow/src/impls/initialized.rs b/compiler/rustc_mir_dataflow/src/impls/initialized.rs
index 3be450a0b3f47..f2fbadaac09d5 100644
--- a/compiler/rustc_mir_dataflow/src/impls/initialized.rs
+++ b/compiler/rustc_mir_dataflow/src/impls/initialized.rs
@@ -4,7 +4,9 @@ use rustc_abi::VariantIdx;
 use rustc_index::Idx;
 use rustc_index::bit_set::{DenseBitSet, MixedBitSet};
 use rustc_middle::bug;
-use rustc_middle::mir::{self, Body, CallReturnPlaces, Location, TerminatorEdges};
+use rustc_middle::mir::{
+    self, Body, CallReturnPlaces, Location, SwitchTargetValue, TerminatorEdges,
+};
 use rustc_middle::ty::util::Discr;
 use rustc_middle::ty::{self, TyCtxt};
 use tracing::{debug, instrument};
@@ -424,7 +426,7 @@ impl<'tcx> Analysis<'tcx> for MaybeInitializedPlaces<'_, 'tcx> {
         state: &mut Self::Domain,
         edge: SwitchIntTarget,
     ) {
-        if let Some(value) = edge.value {
+        if let SwitchTargetValue::Normal(value) = edge.value {
             // Kill all move paths that correspond to variants we know to be inactive along this
             // particular outgoing edge of a `SwitchInt`.
             drop_flag_effects::on_all_inactive_variants(
@@ -537,7 +539,7 @@ impl<'tcx> Analysis<'tcx> for MaybeUninitializedPlaces<'_, 'tcx> {
         state: &mut Self::Domain,
         edge: SwitchIntTarget,
     ) {
-        if let Some(value) = edge.value {
+        if let SwitchTargetValue::Normal(value) = edge.value {
             // Mark all move paths that correspond to variants other than this one as maybe
             // uninitialized (in reality, they are *definitely* uninitialized).
             drop_flag_effects::on_all_inactive_variants(

From db1ca60470d3d9bcb533ad1130e669dcd8c7ffd2 Mon Sep 17 00:00:00 2001
From: Nicholas Nethercote 
Date: Fri, 14 Feb 2025 10:57:06 +1100
Subject: [PATCH 62/75] Update and clarify the comment on `SwitchTargets`.

---
 compiler/rustc_middle/src/mir/syntax.rs | 30 ++++++++++++++++---------
 1 file changed, 19 insertions(+), 11 deletions(-)

diff --git a/compiler/rustc_middle/src/mir/syntax.rs b/compiler/rustc_middle/src/mir/syntax.rs
index 9cec8d832dd14..dfd40a9535ba1 100644
--- a/compiler/rustc_middle/src/mir/syntax.rs
+++ b/compiler/rustc_middle/src/mir/syntax.rs
@@ -1015,22 +1015,30 @@ impl TerminatorKind<'_> {
 
 #[derive(Debug, Clone, TyEncodable, TyDecodable, Hash, HashStable, PartialEq)]
 pub struct SwitchTargets {
-    /// Possible values. The locations to branch to in each case
-    /// are found in the corresponding indices from the `targets` vector.
+    /// Possible values. For each value, the location to branch to is found in
+    /// the corresponding element in the `targets` vector.
     pub(super) values: SmallVec<[Pu128; 1]>,
 
-    /// Possible branch sites. The last element of this vector is used
-    /// for the otherwise branch, so targets.len() == values.len() + 1
-    /// should hold.
+    /// Possible branch targets. The last element of this vector is used for
+    /// the "otherwise" branch, so `targets.len() == values.len() + 1` always
+    /// holds.
     //
-    // This invariant is quite non-obvious and also could be improved.
-    // One way to make this invariant is to have something like this instead:
+    // Note: This invariant is non-obvious and easy to violate. This would be a
+    // more rigorous representation:
     //
-    // branches: Vec<(ConstInt, BasicBlock)>,
-    // otherwise: Option // exhaustive if None
+    //   normal: SmallVec<[(Pu128, BasicBlock); 1]>,
+    //   otherwise: BasicBlock,
     //
-    // However we’ve decided to keep this as-is until we figure a case
-    // where some other approach seems to be strictly better than other.
+    // But it's important to have the targets in a sliceable type, because
+    // target slices show up elsewhere. E.g. `TerminatorKind::InlineAsm` has a
+    // boxed slice, and `TerminatorKind::FalseEdge` has a single target that
+    // can be converted to a slice with `slice::from_ref`.
+    //
+    // Why does this matter? In functions like `TerminatorKind::successors` we
+    // return `impl Iterator` and a non-slice-of-targets representation here
+    // causes problems because multiple different concrete iterator types would
+    // be involved and we would need a boxed trait object, which requires an
+    // allocation, which is expensive if done frequently.
     pub(super) targets: SmallVec<[BasicBlock; 2]>,
 }
 

From 3b81d9d42d07d3e2c4f9f0c714fb16d2527758fe Mon Sep 17 00:00:00 2001
From: Nicholas Nethercote 
Date: Fri, 14 Feb 2025 13:23:00 +1100
Subject: [PATCH 63/75] Remove `SwitchIntTarget`.

It's only passed to `Analysis::apply_switch_int_edge_effect`, and the
existing impls of that method only use the `value` field. So pass that
instead.
---
 .../rustc_mir_dataflow/src/framework/direction.rs    | 12 +++++-------
 compiler/rustc_mir_dataflow/src/framework/mod.rs     |  7 +------
 compiler/rustc_mir_dataflow/src/impls/initialized.rs |  9 ++++-----
 3 files changed, 10 insertions(+), 18 deletions(-)

diff --git a/compiler/rustc_mir_dataflow/src/framework/direction.rs b/compiler/rustc_mir_dataflow/src/framework/direction.rs
index 02b2bbb35076f..3d7f9e2d8e71b 100644
--- a/compiler/rustc_mir_dataflow/src/framework/direction.rs
+++ b/compiler/rustc_mir_dataflow/src/framework/direction.rs
@@ -5,7 +5,7 @@ use rustc_middle::mir::{
 };
 
 use super::visitor::ResultsVisitor;
-use super::{Analysis, Effect, EffectIndex, Results, SwitchIntTarget};
+use super::{Analysis, Effect, EffectIndex, Results};
 
 pub trait Direction {
     const IS_FORWARD: bool;
@@ -117,8 +117,7 @@ impl Direction for Backward {
                         let mut tmp = analysis.bottom_value(body);
                         for &value in &body.basic_blocks.switch_sources()[&(block, pred)] {
                             tmp.clone_from(exit_state);
-                            let si_target = SwitchIntTarget { value, target: block };
-                            analysis.apply_switch_int_edge_effect(&mut data, &mut tmp, si_target);
+                            analysis.apply_switch_int_edge_effect(&mut data, &mut tmp, value);
                             propagate(pred, &tmp);
                         }
                     } else {
@@ -292,9 +291,8 @@ impl Direction for Forward {
                     let mut tmp = analysis.bottom_value(body);
                     for (value, target) in targets.iter() {
                         tmp.clone_from(exit_state);
-                        let si_target =
-                            SwitchIntTarget { value: SwitchTargetValue::Normal(value), target };
-                        analysis.apply_switch_int_edge_effect(&mut data, &mut tmp, si_target);
+                        let value = SwitchTargetValue::Normal(value);
+                        analysis.apply_switch_int_edge_effect(&mut data, &mut tmp, value);
                         propagate(target, &tmp);
                     }
 
@@ -305,7 +303,7 @@ impl Direction for Forward {
                     analysis.apply_switch_int_edge_effect(
                         &mut data,
                         exit_state,
-                        SwitchIntTarget { value: SwitchTargetValue::Otherwise, target: otherwise },
+                        SwitchTargetValue::Otherwise,
                     );
                     propagate(otherwise, exit_state);
                 } else {
diff --git a/compiler/rustc_mir_dataflow/src/framework/mod.rs b/compiler/rustc_mir_dataflow/src/framework/mod.rs
index 14630991cd6c8..09f6cdb5c4a72 100644
--- a/compiler/rustc_mir_dataflow/src/framework/mod.rs
+++ b/compiler/rustc_mir_dataflow/src/framework/mod.rs
@@ -222,7 +222,7 @@ pub trait Analysis<'tcx> {
         &mut self,
         _data: &mut Self::SwitchIntData,
         _state: &mut Self::Domain,
-        _edge: SwitchIntTarget,
+        _value: SwitchTargetValue,
     ) {
         unreachable!();
     }
@@ -432,10 +432,5 @@ impl EffectIndex {
     }
 }
 
-pub struct SwitchIntTarget {
-    pub value: SwitchTargetValue,
-    pub target: BasicBlock,
-}
-
 #[cfg(test)]
 mod tests;
diff --git a/compiler/rustc_mir_dataflow/src/impls/initialized.rs b/compiler/rustc_mir_dataflow/src/impls/initialized.rs
index f2fbadaac09d5..f5ffc42d52ab0 100644
--- a/compiler/rustc_mir_dataflow/src/impls/initialized.rs
+++ b/compiler/rustc_mir_dataflow/src/impls/initialized.rs
@@ -12,7 +12,6 @@ use rustc_middle::ty::{self, TyCtxt};
 use tracing::{debug, instrument};
 
 use crate::drop_flag_effects::DropFlagState;
-use crate::framework::SwitchIntTarget;
 use crate::move_paths::{HasMoveData, InitIndex, InitKind, LookupResult, MoveData, MovePathIndex};
 use crate::{
     Analysis, GenKill, MaybeReachable, drop_flag_effects, drop_flag_effects_for_function_entry,
@@ -424,9 +423,9 @@ impl<'tcx> Analysis<'tcx> for MaybeInitializedPlaces<'_, 'tcx> {
         &mut self,
         data: &mut Self::SwitchIntData,
         state: &mut Self::Domain,
-        edge: SwitchIntTarget,
+        value: SwitchTargetValue,
     ) {
-        if let SwitchTargetValue::Normal(value) = edge.value {
+        if let SwitchTargetValue::Normal(value) = value {
             // Kill all move paths that correspond to variants we know to be inactive along this
             // particular outgoing edge of a `SwitchInt`.
             drop_flag_effects::on_all_inactive_variants(
@@ -537,9 +536,9 @@ impl<'tcx> Analysis<'tcx> for MaybeUninitializedPlaces<'_, 'tcx> {
         &mut self,
         data: &mut Self::SwitchIntData,
         state: &mut Self::Domain,
-        edge: SwitchIntTarget,
+        value: SwitchTargetValue,
     ) {
-        if let SwitchTargetValue::Normal(value) = edge.value {
+        if let SwitchTargetValue::Normal(value) = value {
             // Mark all move paths that correspond to variants other than this one as maybe
             // uninitialized (in reality, they are *definitely* uninitialized).
             drop_flag_effects::on_all_inactive_variants(

From 04ab8373c89d143feca797dfd5d501a98f59a43f Mon Sep 17 00:00:00 2001
From: Chayim Refael Friedman 
Date: Mon, 17 Feb 2025 02:26:02 +0200
Subject: [PATCH 64/75] Fix sorting of runnables

There were two mistakes: first, tests were sorted before test modules, and second, we re-sorted based on the name only, which cancelled the sort based on the kind.
---
 src/tools/rust-analyzer/crates/ide/src/annotations.rs | 9 +--------
 src/tools/rust-analyzer/crates/ide/src/runnables.rs   | 6 +++---
 2 files changed, 4 insertions(+), 11 deletions(-)

diff --git a/src/tools/rust-analyzer/crates/ide/src/annotations.rs b/src/tools/rust-analyzer/crates/ide/src/annotations.rs
index a0add4741f324..e47891bbdfe7e 100644
--- a/src/tools/rust-analyzer/crates/ide/src/annotations.rs
+++ b/src/tools/rust-analyzer/crates/ide/src/annotations.rs
@@ -173,14 +173,7 @@ pub(crate) fn annotations(
     annotations
         .into_iter()
         .sorted_by_key(|a| {
-            (
-                a.range.start(),
-                a.range.end(),
-                match &a.kind {
-                    AnnotationKind::Runnable(runnable) => Some(runnable.nav.name.clone()),
-                    _ => None,
-                },
-            )
+            (a.range.start(), a.range.end(), matches!(a.kind, AnnotationKind::Runnable(..)))
         })
         .collect()
 }
diff --git a/src/tools/rust-analyzer/crates/ide/src/runnables.rs b/src/tools/rust-analyzer/crates/ide/src/runnables.rs
index 9e3b70fa8eae2..509ae3204c36d 100644
--- a/src/tools/rust-analyzer/crates/ide/src/runnables.rs
+++ b/src/tools/rust-analyzer/crates/ide/src/runnables.rs
@@ -61,8 +61,8 @@ pub enum RunnableKind {
 
 #[derive(Debug, Clone, Hash, PartialEq, Eq, PartialOrd, Ord)]
 enum RunnableDiscKind {
-    Test,
     TestMod,
+    Test,
     DocTest,
     Bench,
     Bin,
@@ -1233,8 +1233,8 @@ gen_main!();
                     "(TestMod, NavigationTarget { file_id: FileId(0), full_range: 0..315, name: \"\", kind: Module })",
                     "(TestMod, NavigationTarget { file_id: FileId(0), full_range: 267..292, focus_range: 271..276, name: \"tests\", kind: Module, description: \"mod tests\" })",
                     "(Test, NavigationTarget { file_id: FileId(0), full_range: 283..290, name: \"foo_test\", kind: Function })",
-                    "(Test, NavigationTarget { file_id: FileId(0), full_range: 293..301, name: \"foo_test2\", kind: Function }, true)",
                     "(TestMod, NavigationTarget { file_id: FileId(0), full_range: 293..301, name: \"tests2\", kind: Module, description: \"mod tests2\" }, true)",
+                    "(Test, NavigationTarget { file_id: FileId(0), full_range: 293..301, name: \"foo_test2\", kind: Function }, true)",
                     "(Bin, NavigationTarget { file_id: FileId(0), full_range: 302..314, name: \"main\", kind: Function })",
                 ]
             "#]],
@@ -1263,10 +1263,10 @@ foo!();
 "#,
             expect![[r#"
                 [
+                    "(TestMod, NavigationTarget { file_id: FileId(0), full_range: 210..217, name: \"foo_tests\", kind: Module, description: \"mod foo_tests\" }, true)",
                     "(Test, NavigationTarget { file_id: FileId(0), full_range: 210..217, name: \"foo0\", kind: Function }, true)",
                     "(Test, NavigationTarget { file_id: FileId(0), full_range: 210..217, name: \"foo1\", kind: Function }, true)",
                     "(Test, NavigationTarget { file_id: FileId(0), full_range: 210..217, name: \"foo2\", kind: Function }, true)",
-                    "(TestMod, NavigationTarget { file_id: FileId(0), full_range: 210..217, name: \"foo_tests\", kind: Module, description: \"mod foo_tests\" }, true)",
                 ]
             "#]],
         );

From 9cbc31031444c1efee8ca9860f2b907c5c18d24e Mon Sep 17 00:00:00 2001
From: Nikita Popov 
Date: Mon, 17 Feb 2025 09:57:13 +0100
Subject: [PATCH 65/75] Update default loongarch code model in docs

Since https://github.com/rust-lang/rust/pull/130266 loongarch
defaults to medium code model.
---
 src/doc/rustc/src/platform-support/loongarch-none.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/doc/rustc/src/platform-support/loongarch-none.md b/src/doc/rustc/src/platform-support/loongarch-none.md
index 110a7cc3424d4..bafa85c26e290 100644
--- a/src/doc/rustc/src/platform-support/loongarch-none.md
+++ b/src/doc/rustc/src/platform-support/loongarch-none.md
@@ -32,7 +32,7 @@ By default, code generated with the soft-float target should run on any
 LoongArch64 hardware, with the hard-float target additionally requiring an FPU;
 enabling additional target features may raise this baseline.
 
-Code generated with the targets will use the `small` code model by default.
+Code generated with the targets will use the `medium` code model by default.
 You can change this using the `-C code-model=` option to rustc.
 
 On `loongarch64-unknown-none*`, `extern "C"` uses the [architecture's standard calling convention][lapcs].

From 6fa3ad1e5e037d9b4f120573b852f06591bbe6f0 Mon Sep 17 00:00:00 2001
From: klensy 
Date: Mon, 17 Feb 2025 12:32:26 +0300
Subject: [PATCH 66/75] correct comment

---
 compiler/rustc_middle/src/ty/typeck_results.rs | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/compiler/rustc_middle/src/ty/typeck_results.rs b/compiler/rustc_middle/src/ty/typeck_results.rs
index 1b5b791bb24ae..b8c73d2584379 100644
--- a/compiler/rustc_middle/src/ty/typeck_results.rs
+++ b/compiler/rustc_middle/src/ty/typeck_results.rs
@@ -147,9 +147,7 @@ pub struct TypeckResults<'tcx> {
     coercion_casts: ItemLocalSet,
 
     /// Set of trait imports actually used in the method resolution.
-    /// This is used for warning unused imports. During type
-    /// checking, this `Arc` should not be cloned: it must have a ref-count
-    /// of 1 so that we can insert things into the set mutably.
+    /// This is used for warning unused imports.
     pub used_trait_imports: UnordSet,
 
     /// If any errors occurred while type-checking this body,

From f46c7652d54168dc617861d195e3ef87c08bd9c4 Mon Sep 17 00:00:00 2001
From: Miguel Ojeda 
Date: Mon, 17 Feb 2025 10:41:59 +0100
Subject: [PATCH 67/75] CI: rfl: move job forward to Linux v6.14-rc3

Linux v6.14-rc3 contains commit 6273a058383e ("x86: rust: set
rustc-abi=x86-softfloat on rustc>=1.86.0"), which resolves the error
from https://github.com/rust-lang/rust/pull/136146.

Signed-off-by: Miguel Ojeda 
---
 src/ci/docker/scripts/rfl-build.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/ci/docker/scripts/rfl-build.sh b/src/ci/docker/scripts/rfl-build.sh
index 3eb85ab215e0b..573821c3e59cd 100755
--- a/src/ci/docker/scripts/rfl-build.sh
+++ b/src/ci/docker/scripts/rfl-build.sh
@@ -2,7 +2,7 @@
 
 set -euo pipefail
 
-LINUX_VERSION=50e57739141b41f731ab31f8380821c7969f9dc4
+LINUX_VERSION=v6.14-rc3
 
 # Build rustc, rustdoc, cargo, clippy-driver and rustfmt
 ../x.py build --stage 2 library rustdoc clippy rustfmt
@@ -28,7 +28,7 @@ rm -rf linux || true
 # Download Linux at a specific commit
 mkdir -p linux
 git -C linux init
-git -C linux remote add origin https://github.com/Darksonn/linux.git
+git -C linux remote add origin https://github.com/Rust-for-Linux/linux.git
 git -C linux fetch --depth 1 origin ${LINUX_VERSION}
 git -C linux checkout FETCH_HEAD
 

From b7a9a321265c0e9a597762c7c8107d4b7eba378b Mon Sep 17 00:00:00 2001
From: Chayim Refael Friedman 
Date: Mon, 17 Feb 2025 11:51:29 +0200
Subject: [PATCH 68/75] Fix detection of ref patterns for path patterns

I was wrong on #19127, I thought hir-def resolver is enough for them, but it turns out not because of paths like `::Variant` and `Type::AssocThatIsEnum::Variant`.
---
 .../crates/hir-ty/src/infer/diagnostics.rs    | 21 +++++++++++++++
 .../crates/hir-ty/src/infer/pat.rs            | 13 +++-------
 .../crates/hir-ty/src/infer/path.rs           | 26 ++++++++++++++-----
 .../src/handlers/type_mismatch.rs             | 21 +++++++++++++++
 4 files changed, 64 insertions(+), 17 deletions(-)

diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/infer/diagnostics.rs b/src/tools/rust-analyzer/crates/hir-ty/src/infer/diagnostics.rs
index 8c0446953a6b7..e4f5b5ed378dc 100644
--- a/src/tools/rust-analyzer/crates/hir-ty/src/infer/diagnostics.rs
+++ b/src/tools/rust-analyzer/crates/hir-ty/src/infer/diagnostics.rs
@@ -7,6 +7,7 @@ use std::ops::{Deref, DerefMut};
 
 use either::Either;
 use hir_def::{hir::ExprOrPatId, path::Path, resolver::Resolver, type_ref::TypesMap, TypeOwnerId};
+use la_arena::{Idx, RawIdx};
 
 use crate::{
     db::HirDatabase,
@@ -81,6 +82,26 @@ impl<'a> InferenceTyLoweringContext<'a> {
         };
         PathLoweringContext::new(&mut self.ctx, on_diagnostic, path)
     }
+
+    #[inline]
+    pub(super) fn at_path_forget_diagnostics<'b>(
+        &'b mut self,
+        path: &'b Path,
+    ) -> PathLoweringContext<'b, 'a> {
+        let on_diagnostic = PathDiagnosticCallback {
+            data: Either::Right(PathDiagnosticCallbackData {
+                diagnostics: self.diagnostics,
+                node: ExprOrPatId::ExprId(Idx::from_raw(RawIdx::from_u32(0))),
+            }),
+            callback: |_data, _, _diag| {},
+        };
+        PathLoweringContext::new(&mut self.ctx, on_diagnostic, path)
+    }
+
+    #[inline]
+    pub(super) fn forget_diagnostics(&mut self) {
+        self.ctx.diagnostics.clear();
+    }
 }
 
 impl<'a> Deref for InferenceTyLoweringContext<'a> {
diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/infer/pat.rs b/src/tools/rust-analyzer/crates/hir-ty/src/infer/pat.rs
index d0fe00ecebdd8..db93116f1071a 100644
--- a/src/tools/rust-analyzer/crates/hir-ty/src/infer/pat.rs
+++ b/src/tools/rust-analyzer/crates/hir-ty/src/infer/pat.rs
@@ -565,16 +565,9 @@ impl InferenceContext<'_> {
             | Pat::Slice { .. } => true,
             Pat::Or(pats) => pats.iter().all(|p| self.is_non_ref_pat(body, *p)),
             Pat::Path(path) => {
-                // A const is a reference pattern, but other value ns things aren't (see #16131). We don't need more than
-                // the hir-def resolver for this, because if there are segments left, this can only be an (associated) const.
-                //
-                // Do not use `TyLoweringContext`'s resolution, we want to ignore errors here (they'll be reported elsewhere).
-                let resolution = self.resolver.resolve_path_in_value_ns_fully(
-                    self.db.upcast(),
-                    path,
-                    body.pat_path_hygiene(pat),
-                );
-                resolution.is_some_and(|it| !matches!(it, hir_def::resolver::ValueNs::ConstId(_)))
+                // A const is a reference pattern, but other value ns things aren't (see #16131).
+                let resolved = self.resolve_value_path_inner(path, pat.into(), true);
+                resolved.is_some_and(|it| !matches!(it.0, hir_def::resolver::ValueNs::ConstId(_)))
             }
             Pat::ConstBlock(..) => false,
             Pat::Lit(expr) => !matches!(
diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/infer/path.rs b/src/tools/rust-analyzer/crates/hir-ty/src/infer/path.rs
index 3794912ee980a..6254bc12392b0 100644
--- a/src/tools/rust-analyzer/crates/hir-ty/src/infer/path.rs
+++ b/src/tools/rust-analyzer/crates/hir-ty/src/infer/path.rs
@@ -40,7 +40,7 @@ impl InferenceContext<'_> {
     }
 
     fn resolve_value_path(&mut self, path: &Path, id: ExprOrPatId) -> Option {
-        let (value, self_subst) = self.resolve_value_path_inner(path, id)?;
+        let (value, self_subst) = self.resolve_value_path_inner(path, id, false)?;
 
         let value_def: ValueTyDefId = match value {
             ValueNs::FunctionId(it) => it.into(),
@@ -152,6 +152,7 @@ impl InferenceContext<'_> {
         &mut self,
         path: &Path,
         id: ExprOrPatId,
+        no_diagnostics: bool,
     ) -> Option<(ValueNs, Option>)> {
         // Don't use `self.make_ty()` here as we need `orig_ns`.
         let mut ctx = TyLoweringContext::new(
@@ -162,7 +163,11 @@ impl InferenceContext<'_> {
             &self.diagnostics,
             InferenceTyDiagnosticSource::Body,
         );
-        let mut path_ctx = ctx.at_path(path, id);
+        let mut path_ctx = if no_diagnostics {
+            ctx.at_path_forget_diagnostics(path)
+        } else {
+            ctx.at_path(path, id)
+        };
         let (value, self_subst) = if let Some(type_ref) = path.type_anchor() {
             let last = path.segments().last()?;
 
@@ -172,7 +177,7 @@ impl InferenceContext<'_> {
 
             path_ctx.ignore_last_segment();
             let (ty, _) = path_ctx.lower_ty_relative_path(ty, orig_ns);
-            drop(ctx);
+            drop_ctx(ctx, no_diagnostics);
             let ty = self.table.insert_type_vars(ty);
             let ty = self.table.normalize_associated_types_in(ty);
             self.resolve_ty_assoc_item(ty, last.name, id).map(|(it, substs)| (it, Some(substs)))?
@@ -183,7 +188,7 @@ impl InferenceContext<'_> {
 
             match value_or_partial {
                 ResolveValueResult::ValueNs(it, _) => {
-                    drop(ctx);
+                    drop_ctx(ctx, no_diagnostics);
                     (it, None)
                 }
                 ResolveValueResult::Partial(def, remaining_index, _) => {
@@ -202,7 +207,7 @@ impl InferenceContext<'_> {
                             let self_ty = self.table.new_type_var();
                             let trait_ref =
                                 path_ctx.lower_trait_ref_from_resolved_path(trait_, self_ty);
-                            drop(ctx);
+                            drop_ctx(ctx, no_diagnostics);
                             self.resolve_trait_assoc_item(trait_ref, last_segment, id)
                         }
                         (def, _) => {
@@ -212,7 +217,7 @@ impl InferenceContext<'_> {
                             // as Iterator>::Item::default`)
                             path_ctx.ignore_last_segment();
                             let (ty, _) = path_ctx.lower_partly_resolved_path(def, true);
-                            drop(ctx);
+                            drop_ctx(ctx, no_diagnostics);
                             if ty.is_unknown() {
                                 return None;
                             }
@@ -227,7 +232,14 @@ impl InferenceContext<'_> {
                 }
             }
         };
-        Some((value, self_subst))
+        return Some((value, self_subst));
+
+        #[inline]
+        fn drop_ctx(mut ctx: TyLoweringContext<'_>, no_diagnostics: bool) {
+            if no_diagnostics {
+                ctx.forget_diagnostics();
+            }
+        }
     }
 
     fn add_required_obligations_for_value_path(&mut self, def: GenericDefId, subst: &Substitution) {
diff --git a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/type_mismatch.rs b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/type_mismatch.rs
index 73dcbc13b79a1..7cf8282d05292 100644
--- a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/type_mismatch.rs
+++ b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/type_mismatch.rs
@@ -1235,4 +1235,25 @@ fn f() {
 "#,
         );
     }
+
+    #[test]
+    fn complex_enum_variant_non_ref_pat() {
+        check_diagnostics(
+            r#"
+enum Enum { Variant }
+
+trait Trait {
+    type Assoc;
+}
+impl Trait for () {
+    type Assoc = Enum;
+}
+
+fn foo(v: &Enum) {
+    let ::Variant = v;
+    let <() as Trait>::Assoc::Variant = v;
+}
+    "#,
+        );
+    }
 }

From 33e7f9bc6681e32cc3b3b26ea85e21da225b89ee Mon Sep 17 00:00:00 2001
From: Pietro Albini 
Date: Mon, 17 Feb 2025 10:20:14 +0100
Subject: [PATCH 69/75] generate-copyright: pass the vendored sources from
 bootstrap

---
 src/bootstrap/src/core/build_steps/run.rs     | 17 +++++++-
 src/bootstrap/src/core/build_steps/vendor.rs  | 14 +++++--
 src/bootstrap/src/core/builder/cargo.rs       |  3 +-
 src/bootstrap/src/lib.rs                      |  7 ++++
 .../generate-copyright/src/cargo_metadata.rs  | 40 ++-----------------
 src/tools/generate-copyright/src/main.rs      | 12 ++----
 6 files changed, 41 insertions(+), 52 deletions(-)

diff --git a/src/bootstrap/src/core/build_steps/run.rs b/src/bootstrap/src/core/build_steps/run.rs
index 3f5e701e7e17a..2b17e02cae5a4 100644
--- a/src/bootstrap/src/core/build_steps/run.rs
+++ b/src/bootstrap/src/core/build_steps/run.rs
@@ -9,7 +9,7 @@ use crate::Mode;
 use crate::core::build_steps::dist::distdir;
 use crate::core::build_steps::test;
 use crate::core::build_steps::tool::{self, SourceType, Tool};
-use crate::core::build_steps::vendor::default_paths_to_vendor;
+use crate::core::build_steps::vendor::{Vendor, default_paths_to_vendor};
 use crate::core::builder::{Builder, Kind, RunConfig, ShouldRun, Step};
 use crate::core::config::TargetSelection;
 use crate::core::config::flags::get_completion;
@@ -226,13 +226,26 @@ impl Step for GenerateCopyright {
             .collect::>()
             .join(",");
 
+        let vendored_sources = if let Some(path) = builder.vendored_crates_path() {
+            path
+        } else {
+            let cache_dir = builder.out.join("tmp").join("generate-copyright-vendor");
+            builder.ensure(Vendor {
+                sync_args: Vec::new(),
+                versioned_dirs: true,
+                root_dir: builder.src.clone(),
+                output_dir: cache_dir.clone(),
+            });
+            cache_dir
+        };
+
         let mut cmd = builder.tool_cmd(Tool::GenerateCopyright);
         cmd.env("CARGO_MANIFESTS", &cargo_manifests);
         cmd.env("LICENSE_METADATA", &license_metadata);
         cmd.env("DEST", &dest);
         cmd.env("DEST_LIBSTD", &dest_libstd);
-        cmd.env("OUT_DIR", &builder.out);
         cmd.env("SRC_DIR", &builder.src);
+        cmd.env("VENDOR_DIR", &vendored_sources);
         cmd.env("CARGO", &builder.initial_cargo);
         // it is important that generate-copyright runs from the root of the
         // source tree, because it uses relative paths
diff --git a/src/bootstrap/src/core/build_steps/vendor.rs b/src/bootstrap/src/core/build_steps/vendor.rs
index 26d0f100ffd52..c68b55f358941 100644
--- a/src/bootstrap/src/core/build_steps/vendor.rs
+++ b/src/bootstrap/src/core/build_steps/vendor.rs
@@ -4,6 +4,8 @@ use crate::core::build_steps::tool::SUBMODULES_FOR_RUSTBOOK;
 use crate::core::builder::{Builder, RunConfig, ShouldRun, Step};
 use crate::utils::exec::command;
 
+pub const VENDOR_DIR: &str = "vendor";
+
 /// Returns the cargo workspaces to vendor for `x vendor` and dist tarballs.
 ///
 /// Returns a `Vec` of `(path_to_manifest, submodules_required)` where
@@ -29,9 +31,10 @@ pub fn default_paths_to_vendor(builder: &Builder<'_>) -> Vec<(PathBuf, Vec<&'sta
 
 #[derive(Debug, Clone, Hash, PartialEq, Eq)]
 pub(crate) struct Vendor {
-    sync_args: Vec,
-    versioned_dirs: bool,
-    root_dir: PathBuf,
+    pub(crate) sync_args: Vec,
+    pub(crate) versioned_dirs: bool,
+    pub(crate) root_dir: PathBuf,
+    pub(crate) output_dir: PathBuf,
 }
 
 impl Step for Vendor {
@@ -48,10 +51,13 @@ impl Step for Vendor {
             sync_args: run.builder.config.cmd.vendor_sync_args(),
             versioned_dirs: run.builder.config.cmd.vendor_versioned_dirs(),
             root_dir: run.builder.src.clone(),
+            output_dir: run.builder.src.join(VENDOR_DIR),
         });
     }
 
     fn run(self, builder: &Builder<'_>) -> Self::Output {
+        builder.info(&format!("Vendoring sources to {:?}", self.root_dir));
+
         let mut cmd = command(&builder.initial_cargo);
         cmd.arg("vendor");
 
@@ -81,7 +87,7 @@ impl Step for Vendor {
         // which uses the unstable `public-dependency` feature.
         cmd.env("RUSTC_BOOTSTRAP", "1");
 
-        cmd.current_dir(self.root_dir);
+        cmd.current_dir(self.root_dir).arg(&self.output_dir);
 
         cmd.run(builder);
     }
diff --git a/src/bootstrap/src/core/builder/cargo.rs b/src/bootstrap/src/core/builder/cargo.rs
index 59680af00622f..1ec3e601cad19 100644
--- a/src/bootstrap/src/core/builder/cargo.rs
+++ b/src/bootstrap/src/core/builder/cargo.rs
@@ -924,8 +924,7 @@ impl Builder<'_> {
 
         if self.config.rust_remap_debuginfo {
             let mut env_var = OsString::new();
-            if self.config.vendor {
-                let vendor = self.build.src.join("vendor");
+            if let Some(vendor) = self.build.vendored_crates_path() {
                 env_var.push(vendor);
                 env_var.push("=/rust/deps");
             } else {
diff --git a/src/bootstrap/src/lib.rs b/src/bootstrap/src/lib.rs
index 7cd8aacf0d6c8..e4a6e2b55e73d 100644
--- a/src/bootstrap/src/lib.rs
+++ b/src/bootstrap/src/lib.rs
@@ -50,6 +50,8 @@ pub use utils::change_tracker::{
     CONFIG_CHANGE_HISTORY, find_recent_config_change_ids, human_readable_changes,
 };
 
+use crate::core::build_steps::vendor::VENDOR_DIR;
+
 const LLVM_TOOLS: &[&str] = &[
     "llvm-cov",      // used to generate coverage report
     "llvm-nm",       // used to inspect binaries; it shows symbol names, their sizes and visibility
@@ -782,6 +784,11 @@ impl Build {
         self.out.join(target).join("md-doc")
     }
 
+    /// Path to the vendored Rust crates.
+    fn vendored_crates_path(&self) -> Option {
+        if self.config.vendor { Some(self.src.join(VENDOR_DIR)) } else { None }
+    }
+
     /// Returns `true` if this is an external version of LLVM not managed by bootstrap.
     /// In particular, we expect llvm sources to be available when this is false.
     ///
diff --git a/src/tools/generate-copyright/src/cargo_metadata.rs b/src/tools/generate-copyright/src/cargo_metadata.rs
index 16c5b5e7104e2..b717bd53eb1a7 100644
--- a/src/tools/generate-copyright/src/cargo_metadata.rs
+++ b/src/tools/generate-copyright/src/cargo_metadata.rs
@@ -11,10 +11,6 @@ pub enum Error {
     Io(#[from] std::io::Error),
     #[error("Failed get output from cargo-metadata: {0:?}")]
     GettingMetadata(#[from] cargo_metadata::Error),
-    #[error("Failed to run cargo vendor: {0:?}")]
-    LaunchingVendor(std::io::Error),
-    #[error("Failed to complete cargo vendor")]
-    RunningVendor,
     #[error("Bad path {0:?} whilst scraping files")]
     Scraping(PathBuf),
 }
@@ -43,13 +39,11 @@ pub struct PackageMetadata {
     pub is_in_libstd: Option,
 }
 
-/// Use `cargo metadata` and `cargo vendor` to get a list of dependencies and their license data.
+/// Use `cargo metadata` to get a list of dependencies and their license data. License files will
+/// also be pulled from the vendor path (generated by bootstrap).
 ///
-/// This will involve running `cargo vendor` into `vendor_path` so we can
-/// grab the license files.
-///
-/// Any dependency with a path beginning with `root_path` is ignored, as we
-/// assume `reuse` has covered it already.
+/// Any dependency with a path beginning with `root_path` is ignored, as we assume `reuse` has
+/// covered it already.
 pub fn get_metadata_and_notices(
     cargo: &Path,
     vendor_path: &Path,
@@ -58,10 +52,6 @@ pub fn get_metadata_and_notices(
 ) -> Result, Error> {
     let mut output = get_metadata(cargo, root_path, manifest_paths)?;
 
-    // Now do a cargo-vendor and grab everything
-    println!("Vendoring deps into {}...", vendor_path.display());
-    run_cargo_vendor(cargo, &vendor_path, manifest_paths)?;
-
     // Now for each dependency we found, go and grab any important looking files
     for (package, metadata) in output.iter_mut() {
         load_important_files(package, metadata, &vendor_path)?;
@@ -113,28 +103,6 @@ pub fn get_metadata(
     Ok(output)
 }
 
-/// Run cargo-vendor, fetching into the given dir
-fn run_cargo_vendor(cargo: &Path, dest: &Path, manifest_paths: &[PathBuf]) -> Result<(), Error> {
-    let mut vendor_command = std::process::Command::new(cargo);
-    vendor_command.env("RUSTC_BOOTSTRAP", "1");
-    vendor_command.arg("vendor");
-    vendor_command.arg("--quiet");
-    vendor_command.arg("--versioned-dirs");
-    for manifest_path in manifest_paths {
-        vendor_command.arg("-s");
-        vendor_command.arg(manifest_path);
-    }
-    vendor_command.arg(dest);
-
-    let vendor_status = vendor_command.status().map_err(Error::LaunchingVendor)?;
-
-    if !vendor_status.success() {
-        return Err(Error::RunningVendor);
-    }
-
-    Ok(())
-}
-
 /// Add important files off disk into this dependency.
 ///
 /// Maybe one-day Cargo.toml will contain enough information that we don't need
diff --git a/src/tools/generate-copyright/src/main.rs b/src/tools/generate-copyright/src/main.rs
index 7b7cf0f4b6991..79e90d88f4446 100644
--- a/src/tools/generate-copyright/src/main.rs
+++ b/src/tools/generate-copyright/src/main.rs
@@ -17,8 +17,8 @@ mod cargo_metadata;
 fn main() -> Result<(), Error> {
     let dest_file = env_path("DEST")?;
     let libstd_dest_file = env_path("DEST_LIBSTD")?;
-    let out_dir = env_path("OUT_DIR")?;
     let src_dir = env_path("SRC_DIR")?;
+    let vendor_dir = env_path("VENDOR_DIR")?;
     let cargo = env_path("CARGO")?;
     let license_metadata = env_path("LICENSE_METADATA")?;
 
@@ -39,16 +39,12 @@ fn main() -> Result<(), Error> {
         .collect::>();
 
     // Scan Cargo dependencies
-    let mut collected_cargo_metadata = cargo_metadata::get_metadata_and_notices(
-        &cargo,
-        &out_dir.join("vendor"),
-        &src_dir,
-        &cargo_manifests,
-    )?;
+    let mut collected_cargo_metadata =
+        cargo_metadata::get_metadata_and_notices(&cargo, &vendor_dir, &src_dir, &cargo_manifests)?;
 
     let library_collected_cargo_metadata = cargo_metadata::get_metadata_and_notices(
         &cargo,
-        &out_dir.join("library-vendor"),
+        &vendor_dir,
         &src_dir,
         &library_manifests,
     )?;

From a71de77ae9459e4f05ceb8695fce793b0ac00319 Mon Sep 17 00:00:00 2001
From: Pietro Albini 
Date: Mon, 17 Feb 2025 11:29:40 +0100
Subject: [PATCH 70/75] allow configuring jemalloc per target

---
 config.example.toml                           |  7 ++++++-
 src/bootstrap/src/core/build_steps/compile.rs |  2 +-
 src/bootstrap/src/core/build_steps/tool.rs    |  2 +-
 src/bootstrap/src/core/config/config.rs       | 10 ++++++++++
 src/bootstrap/src/lib.rs                      |  2 +-
 src/bootstrap/src/utils/change_tracker.rs     |  5 +++++
 6 files changed, 24 insertions(+), 4 deletions(-)

diff --git a/config.example.toml b/config.example.toml
index f5395375afe4c..fd27b24e46191 100644
--- a/config.example.toml
+++ b/config.example.toml
@@ -729,7 +729,8 @@
 #remap-debuginfo = false
 
 # Link the compiler and LLVM against `jemalloc` instead of the default libc allocator.
-# This option is only tested on Linux and OSX.
+# This option is only tested on Linux and OSX. It can also be configured per-target in the
+# [target.] section.
 #jemalloc = false
 
 # Run tests in various test suites with the "nll compare mode" in addition to
@@ -927,6 +928,10 @@
 # order to run `x check`.
 #optimized-compiler-builtins = build.optimized-compiler-builtins (bool)
 
+# Link the compiler and LLVM against `jemalloc` instead of the default libc allocator.
+# This overrides the global `rust.jemalloc` option. See that option for more info.
+#jemalloc = rust.jemalloc (bool)
+
 # =============================================================================
 # Distribution options
 #
diff --git a/src/bootstrap/src/core/build_steps/compile.rs b/src/bootstrap/src/core/build_steps/compile.rs
index 479327d63695c..64a9b51ed5d69 100644
--- a/src/bootstrap/src/core/build_steps/compile.rs
+++ b/src/bootstrap/src/core/build_steps/compile.rs
@@ -1260,7 +1260,7 @@ pub fn rustc_cargo_env(
 
     // Build jemalloc on AArch64 with support for page sizes up to 64K
     // See: https://github.com/rust-lang/rust/pull/135081
-    if builder.config.jemalloc
+    if builder.config.jemalloc(target)
         && target.starts_with("aarch64")
         && env::var_os("JEMALLOC_SYS_WITH_LG_PAGE").is_none()
     {
diff --git a/src/bootstrap/src/core/build_steps/tool.rs b/src/bootstrap/src/core/build_steps/tool.rs
index 1291a634a6f6f..9d08adaae6bd5 100644
--- a/src/bootstrap/src/core/build_steps/tool.rs
+++ b/src/bootstrap/src/core/build_steps/tool.rs
@@ -643,7 +643,7 @@ impl Step for Rustdoc {
         // to build rustdoc.
         //
         let mut features = Vec::new();
-        if builder.config.jemalloc {
+        if builder.config.jemalloc(target) {
             features.push("jemalloc".to_string());
         }
 
diff --git a/src/bootstrap/src/core/config/config.rs b/src/bootstrap/src/core/config/config.rs
index 62625fc3660f9..9389bed8e550d 100644
--- a/src/bootstrap/src/core/config/config.rs
+++ b/src/bootstrap/src/core/config/config.rs
@@ -325,6 +325,9 @@ pub struct Config {
     pub hosts: Vec,
     pub targets: Vec,
     pub local_rebuild: bool,
+    #[cfg(not(test))]
+    jemalloc: bool,
+    #[cfg(test)]
     pub jemalloc: bool,
     pub control_flow_guard: bool,
     pub ehcont_guard: bool,
@@ -643,6 +646,7 @@ pub struct Target {
     pub no_std: bool,
     pub codegen_backends: Option>,
     pub optimized_compiler_builtins: Option,
+    pub jemalloc: Option,
 }
 
 impl Target {
@@ -1234,6 +1238,7 @@ define_config! {
         codegen_backends: Option> = "codegen-backends",
         runner: Option = "runner",
         optimized_compiler_builtins: Option = "optimized-compiler-builtins",
+        jemalloc: Option = "jemalloc",
     }
 }
 
@@ -2161,6 +2166,7 @@ impl Config {
                 target.profiler = cfg.profiler;
                 target.rpath = cfg.rpath;
                 target.optimized_compiler_builtins = cfg.optimized_compiler_builtins;
+                target.jemalloc = cfg.jemalloc;
 
                 if let Some(ref backends) = cfg.codegen_backends {
                     let available_backends = ["llvm", "cranelift", "gcc"];
@@ -2726,6 +2732,10 @@ impl Config {
             .unwrap_or(&self.rust_codegen_backends)
     }
 
+    pub fn jemalloc(&self, target: TargetSelection) -> bool {
+        self.target_config.get(&target).and_then(|cfg| cfg.jemalloc).unwrap_or(self.jemalloc)
+    }
+
     pub fn default_codegen_backend(&self, target: TargetSelection) -> Option {
         self.codegen_backends(target).first().cloned()
     }
diff --git a/src/bootstrap/src/lib.rs b/src/bootstrap/src/lib.rs
index 7cd8aacf0d6c8..2adb5993b4f06 100644
--- a/src/bootstrap/src/lib.rs
+++ b/src/bootstrap/src/lib.rs
@@ -677,7 +677,7 @@ impl Build {
             crates.is_empty() || possible_features_by_crates.contains(feature)
         };
         let mut features = vec![];
-        if self.config.jemalloc && check("jemalloc") {
+        if self.config.jemalloc(target) && check("jemalloc") {
             features.push("jemalloc");
         }
         if (self.config.llvm_enabled(target) || kind == Kind::Check) && check("llvm") {
diff --git a/src/bootstrap/src/utils/change_tracker.rs b/src/bootstrap/src/utils/change_tracker.rs
index 9b23cf1843ef5..f215c3f6d0b39 100644
--- a/src/bootstrap/src/utils/change_tracker.rs
+++ b/src/bootstrap/src/utils/change_tracker.rs
@@ -350,4 +350,9 @@ pub const CONFIG_CHANGE_HISTORY: &[ChangeInfo] = &[
         severity: ChangeSeverity::Info,
         summary: "The llvm.ccache option has moved to build.ccache. llvm.ccache is now deprecated.",
     },
+    ChangeInfo {
+        change_id: 137170,
+        severity: ChangeSeverity::Info,
+        summary: "It is now possible to configure `jemalloc` for each target",
+    },
 ];

From 19fa3deab30f89b0c5fb0b7144a074d95a35ab5e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lauren=C8=9Biu=20Nicola?= 
Date: Mon, 17 Feb 2025 13:20:07 +0200
Subject: [PATCH 71/75] Preparing for merge from rust-lang/rust

---
 src/tools/rust-analyzer/rust-version | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/tools/rust-analyzer/rust-version b/src/tools/rust-analyzer/rust-version
index f414893b6cdf2..4006d06e4fe3e 100644
--- a/src/tools/rust-analyzer/rust-version
+++ b/src/tools/rust-analyzer/rust-version
@@ -1 +1 @@
-d9a4a47b8b3dc0bdff83360cea2013200d60d49c
+273465e1f2932a30a5b56ac95859cdc86f3f33fa

From 952bfae057206f01c3afd126752389eef353b56a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lauren=C8=9Biu=20Nicola?= 
Date: Mon, 17 Feb 2025 14:11:12 +0200
Subject: [PATCH 72/75] Bump rustc crates

---
 src/tools/rust-analyzer/Cargo.toml | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/tools/rust-analyzer/Cargo.toml b/src/tools/rust-analyzer/Cargo.toml
index 44c628e8294d1..924ffb8dd21d5 100644
--- a/src/tools/rust-analyzer/Cargo.toml
+++ b/src/tools/rust-analyzer/Cargo.toml
@@ -87,11 +87,11 @@ vfs-notify = { path = "./crates/vfs-notify", version = "0.0.0" }
 vfs = { path = "./crates/vfs", version = "0.0.0" }
 edition = { path = "./crates/edition", version = "0.0.0" }
 
-ra-ap-rustc_lexer = { version = "0.94", default-features = false }
-ra-ap-rustc_parse_format = { version = "0.94", default-features = false }
-ra-ap-rustc_index = { version = "0.94", default-features = false }
-ra-ap-rustc_abi = { version = "0.94", default-features = false }
-ra-ap-rustc_pattern_analysis = { version = "0.94", default-features = false }
+ra-ap-rustc_lexer = { version = "0.95", default-features = false }
+ra-ap-rustc_parse_format = { version = "0.95", default-features = false }
+ra-ap-rustc_index = { version = "0.95", default-features = false }
+ra-ap-rustc_abi = { version = "0.95", default-features = false }
+ra-ap-rustc_pattern_analysis = { version = "0.95", default-features = false }
 
 # local crates that aren't published to crates.io. These should not have versions.
 

From bce3d0ff1cc4182b096a86d31e5944b55c1a8105 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lauren=C8=9Biu=20Nicola?= 
Date: Mon, 17 Feb 2025 14:50:39 +0200
Subject: [PATCH 73/75] Update lockfile

---
 src/tools/rust-analyzer/Cargo.lock | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/src/tools/rust-analyzer/Cargo.lock b/src/tools/rust-analyzer/Cargo.lock
index 98268d8f84449..6d7f6042decab 100644
--- a/src/tools/rust-analyzer/Cargo.lock
+++ b/src/tools/rust-analyzer/Cargo.lock
@@ -1514,9 +1514,9 @@ dependencies = [
 
 [[package]]
 name = "ra-ap-rustc_abi"
-version = "0.94.0"
+version = "0.95.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2fa4333df7b71217edb44a36702cafd2bcfc9850677bdf78b32c9f2c98e5df40"
+checksum = "b40c4e339b71a8f075a829b1acaf32f870a11b466d9b8623d50b0ce33e65af95"
 dependencies = [
  "bitflags 2.7.0",
  "ra-ap-rustc_index",
@@ -1525,9 +1525,9 @@ dependencies = [
 
 [[package]]
 name = "ra-ap-rustc_index"
-version = "0.94.0"
+version = "0.95.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d200275ff3d952cc11108f4dc6a692473659758623d63f2bdcea6104a7f1cec8"
+checksum = "872072e2ba11d11147ebe9fde1608fe7f7d9b5c51dac524af28ee07c6dade468"
 dependencies = [
  "ra-ap-rustc_index_macros",
  "smallvec",
@@ -1535,9 +1535,9 @@ dependencies = [
 
 [[package]]
 name = "ra-ap-rustc_index_macros"
-version = "0.94.0"
+version = "0.95.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "06eb63df8c1ce2dcb07647305bed811c9c5ebd157def01a81c1b9479b8592b3b"
+checksum = "ffcd77debcaf2ad690a57c2d041c11eb33fe66869754b2c5f35c52954b46af0c"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1546,9 +1546,9 @@ dependencies = [
 
 [[package]]
 name = "ra-ap-rustc_lexer"
-version = "0.94.0"
+version = "0.95.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b7a4d402b2f85650e8c1f78e2e2defc241b03948d6e30d9f5254c9b82755cc4d"
+checksum = "49265cdf8823f8d246e476c79c60bd6e5b551c81ae76e1c8d6a5e0dc73df0bca"
 dependencies = [
  "memchr",
  "unicode-properties",
@@ -1557,9 +1557,9 @@ dependencies = [
 
 [[package]]
 name = "ra-ap-rustc_parse_format"
-version = "0.94.0"
+version = "0.95.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a23a382dbe392beb26360c1a8ce9193155ef74eeac59bcda0fa0a233e047323a"
+checksum = "b3da239fdc971176de0db45cb631d71475b52033a3d0027d91964da7be89eee6"
 dependencies = [
  "ra-ap-rustc_index",
  "ra-ap-rustc_lexer",
@@ -1567,9 +1567,9 @@ dependencies = [
 
 [[package]]
 name = "ra-ap-rustc_pattern_analysis"
-version = "0.94.0"
+version = "0.95.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d746955d67f315ab79767f1d0bbc17fee4f0970d4a00b9ad76bf09cc7d3cd17e"
+checksum = "56057d08fdfa0d95494e461bbdd5d4b3fdb349cca6be05ad7759bc964be1b8d4"
 dependencies = [
  "ra-ap-rustc_index",
  "rustc-hash 2.0.0",

From 711247413465fc015420574d6afe929186ab0bb4 Mon Sep 17 00:00:00 2001
From: Thalia Archibald 
Date: Sun, 16 Feb 2025 22:11:46 -0800
Subject: [PATCH 74/75] Use tell for ::stream_position

---
 library/std/src/fs.rs                     | 6 ++++++
 library/std/src/sys/pal/hermit/fs.rs      | 4 ++++
 library/std/src/sys/pal/solid/fs.rs       | 5 ++++-
 library/std/src/sys/pal/uefi/fs.rs        | 4 ++++
 library/std/src/sys/pal/unix/fs.rs        | 4 ++++
 library/std/src/sys/pal/unsupported/fs.rs | 4 ++++
 library/std/src/sys/pal/wasi/fs.rs        | 4 ++++
 library/std/src/sys/pal/windows/fs.rs     | 4 ++++
 8 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/library/std/src/fs.rs b/library/std/src/fs.rs
index 83b009c86dc08..6001a2e2f391f 100644
--- a/library/std/src/fs.rs
+++ b/library/std/src/fs.rs
@@ -1229,6 +1229,9 @@ impl Seek for &File {
     fn seek(&mut self, pos: SeekFrom) -> io::Result {
         self.inner.seek(pos)
     }
+    fn stream_position(&mut self) -> io::Result {
+        self.inner.tell()
+    }
 }
 
 #[stable(feature = "rust1", since = "1.0.0")]
@@ -1275,6 +1278,9 @@ impl Seek for File {
     fn seek(&mut self, pos: SeekFrom) -> io::Result {
         (&*self).seek(pos)
     }
+    fn stream_position(&mut self) -> io::Result {
+        (&*self).stream_position()
+    }
 }
 
 #[stable(feature = "io_traits_arc", since = "1.73.0")]
diff --git a/library/std/src/sys/pal/hermit/fs.rs b/library/std/src/sys/pal/hermit/fs.rs
index 783623552bb17..45fe7e093cdcb 100644
--- a/library/std/src/sys/pal/hermit/fs.rs
+++ b/library/std/src/sys/pal/hermit/fs.rs
@@ -425,6 +425,10 @@ impl File {
         Err(Error::from_raw_os_error(22))
     }
 
+    pub fn tell(&self) -> io::Result {
+        self.seek(SeekFrom::Current(0))
+    }
+
     pub fn duplicate(&self) -> io::Result {
         Err(Error::from_raw_os_error(22))
     }
diff --git a/library/std/src/sys/pal/solid/fs.rs b/library/std/src/sys/pal/solid/fs.rs
index cc424141ea80c..70b5400bde47a 100644
--- a/library/std/src/sys/pal/solid/fs.rs
+++ b/library/std/src/sys/pal/solid/fs.rs
@@ -452,8 +452,11 @@ impl File {
             abi::SOLID_FS_Lseek(self.fd.raw(), pos, whence)
         })
         .map_err(|e| e.as_io_error())?;
-
         // Get the new offset
+        self.tell()
+    }
+
+    pub fn tell(&self) -> io::Result {
         unsafe {
             let mut out_offset = MaybeUninit::uninit();
             error::SolidError::err_if_negative(abi::SOLID_FS_Ftell(
diff --git a/library/std/src/sys/pal/uefi/fs.rs b/library/std/src/sys/pal/uefi/fs.rs
index 9585ec24f687d..45e93deffa3a4 100644
--- a/library/std/src/sys/pal/uefi/fs.rs
+++ b/library/std/src/sys/pal/uefi/fs.rs
@@ -258,6 +258,10 @@ impl File {
         self.0
     }
 
+    pub fn tell(&self) -> io::Result {
+        self.0
+    }
+
     pub fn duplicate(&self) -> io::Result {
         self.0
     }
diff --git a/library/std/src/sys/pal/unix/fs.rs b/library/std/src/sys/pal/unix/fs.rs
index 00cfa7a7fcfda..e13ce580d451d 100644
--- a/library/std/src/sys/pal/unix/fs.rs
+++ b/library/std/src/sys/pal/unix/fs.rs
@@ -1438,6 +1438,10 @@ impl File {
         Ok(n as u64)
     }
 
+    pub fn tell(&self) -> io::Result {
+        self.seek(SeekFrom::Current(0))
+    }
+
     pub fn duplicate(&self) -> io::Result {
         self.0.duplicate().map(File)
     }
diff --git a/library/std/src/sys/pal/unsupported/fs.rs b/library/std/src/sys/pal/unsupported/fs.rs
index 9585ec24f687d..45e93deffa3a4 100644
--- a/library/std/src/sys/pal/unsupported/fs.rs
+++ b/library/std/src/sys/pal/unsupported/fs.rs
@@ -258,6 +258,10 @@ impl File {
         self.0
     }
 
+    pub fn tell(&self) -> io::Result {
+        self.0
+    }
+
     pub fn duplicate(&self) -> io::Result {
         self.0
     }
diff --git a/library/std/src/sys/pal/wasi/fs.rs b/library/std/src/sys/pal/wasi/fs.rs
index faf3edd5da6ce..513f038b5545b 100644
--- a/library/std/src/sys/pal/wasi/fs.rs
+++ b/library/std/src/sys/pal/wasi/fs.rs
@@ -517,6 +517,10 @@ impl File {
         self.fd.seek(pos)
     }
 
+    pub fn tell(&self) -> io::Result {
+        self.fd.tell()
+    }
+
     pub fn duplicate(&self) -> io::Result {
         // https://github.com/CraneStation/wasmtime/blob/master/docs/WASI-rationale.md#why-no-dup
         unsupported()
diff --git a/library/std/src/sys/pal/windows/fs.rs b/library/std/src/sys/pal/windows/fs.rs
index 62d4d727432c3..9b283a7a117b2 100644
--- a/library/std/src/sys/pal/windows/fs.rs
+++ b/library/std/src/sys/pal/windows/fs.rs
@@ -631,6 +631,10 @@ impl File {
         Ok(newpos as u64)
     }
 
+    pub fn tell(&self) -> io::Result {
+        self.seek(SeekFrom::Current(0))
+    }
+
     pub fn duplicate(&self) -> io::Result {
         Ok(Self { handle: self.handle.try_clone()? })
     }

From 92f31b95c92cb0a34413a52793a50c7d4334dbb2 Mon Sep 17 00:00:00 2001
From: Pietro Albini 
Date: Mon, 17 Feb 2025 10:29:51 +0100
Subject: [PATCH 75/75] use the shared vendor impl for plan source tarballs

---
 src/bootstrap/src/core/build_steps/dist.rs   | 28 +++++++-------------
 src/bootstrap/src/core/build_steps/vendor.rs | 10 +++++--
 2 files changed, 17 insertions(+), 21 deletions(-)

diff --git a/src/bootstrap/src/core/build_steps/dist.rs b/src/bootstrap/src/core/build_steps/dist.rs
index ae3761a97e50f..c33f11f684f4d 100644
--- a/src/bootstrap/src/core/build_steps/dist.rs
+++ b/src/bootstrap/src/core/build_steps/dist.rs
@@ -19,7 +19,7 @@ use object::read::archive::ArchiveFile;
 
 use crate::core::build_steps::doc::DocumentationFormat;
 use crate::core::build_steps::tool::{self, Tool};
-use crate::core::build_steps::vendor::default_paths_to_vendor;
+use crate::core::build_steps::vendor::{VENDOR_DIR, Vendor};
 use crate::core::build_steps::{compile, llvm};
 use crate::core::builder::{Builder, Kind, RunConfig, ShouldRun, Step};
 use crate::core::config::TargetSelection;
@@ -1050,19 +1050,6 @@ impl Step for PlainSourceTarball {
         if builder.config.dist_vendor {
             builder.require_and_update_all_submodules();
 
-            // Vendor all Cargo dependencies
-            let mut cmd = command(&builder.initial_cargo);
-            cmd.arg("vendor").arg("--versioned-dirs");
-
-            for (p, _) in default_paths_to_vendor(builder) {
-                cmd.arg("--sync").arg(p);
-            }
-
-            cmd
-                // Will read the libstd Cargo.toml which uses the unstable `public-dependency` feature.
-                .env("RUSTC_BOOTSTRAP", "1")
-                .current_dir(plain_dst_src);
-
             // Vendor packages that are required by opt-dist to collect PGO profiles.
             let pkgs_for_pgo_training = build_helper::LLVM_PGO_CRATES
                 .iter()
@@ -1074,15 +1061,18 @@ impl Step for PlainSourceTarball {
                     manifest_path.push("Cargo.toml");
                     manifest_path
                 });
-            for manifest_path in pkgs_for_pgo_training {
-                cmd.arg("--sync").arg(manifest_path);
-            }
 
-            let config = cmd.run_capture(builder).stdout();
+            // Vendor all Cargo dependencies
+            let vendor = builder.ensure(Vendor {
+                sync_args: pkgs_for_pgo_training.collect(),
+                versioned_dirs: true,
+                root_dir: plain_dst_src.into(),
+                output_dir: VENDOR_DIR.into(),
+            });
 
             let cargo_config_dir = plain_dst_src.join(".cargo");
             builder.create_dir(&cargo_config_dir);
-            builder.create(&cargo_config_dir.join("config.toml"), &config);
+            builder.create(&cargo_config_dir.join("config.toml"), &vendor.config);
         }
 
         // Delete extraneous directories
diff --git a/src/bootstrap/src/core/build_steps/vendor.rs b/src/bootstrap/src/core/build_steps/vendor.rs
index c68b55f358941..410dbc04f0306 100644
--- a/src/bootstrap/src/core/build_steps/vendor.rs
+++ b/src/bootstrap/src/core/build_steps/vendor.rs
@@ -38,7 +38,7 @@ pub(crate) struct Vendor {
 }
 
 impl Step for Vendor {
-    type Output = ();
+    type Output = VendorOutput;
     const DEFAULT: bool = true;
     const ONLY_HOSTS: bool = true;
 
@@ -89,6 +89,12 @@ impl Step for Vendor {
 
         cmd.current_dir(self.root_dir).arg(&self.output_dir);
 
-        cmd.run(builder);
+        let config = cmd.run_capture_stdout(builder);
+        VendorOutput { config: config.stdout() }
     }
 }
+
+#[derive(Debug, Clone)]
+pub(crate) struct VendorOutput {
+    pub(crate) config: String,
+}