diff --git a/compiler/rustc_ast/src/ast.rs b/compiler/rustc_ast/src/ast.rs index 1b831c454e6d5..5b7545b339663 100644 --- a/compiler/rustc_ast/src/ast.rs +++ b/compiler/rustc_ast/src/ast.rs @@ -1657,7 +1657,7 @@ pub enum ExprKind { Try(P), /// A `yield`, with an optional value to be yielded. - Yield(Option>), + Yield(YieldKind), /// A `do yeet` (aka `throw`/`fail`/`bail`/`raise`/whatever), /// with an optional value to be returned. @@ -1903,6 +1903,44 @@ pub enum MatchKind { Postfix, } +/// The kind of yield expression +#[derive(Clone, Encodable, Decodable, Debug)] +pub enum YieldKind { + /// yield expr { ... } + Prefix(Option>), + /// expr.yield { ... } + Postfix(P), +} + +impl YieldKind { + /// Returns the expression inside the yield expression, if any. + /// + /// For postfix yields, this is guaranteed to be `Some`. + pub const fn expr(&self) -> Option<&P> { + match self { + YieldKind::Prefix(expr) => expr.as_ref(), + YieldKind::Postfix(expr) => Some(expr), + } + } + + /// Returns a mutable reference to the expression being yielded, if any. + pub const fn expr_mut(&mut self) -> Option<&mut P> { + match self { + YieldKind::Prefix(expr) => expr.as_mut(), + YieldKind::Postfix(expr) => Some(expr), + } + } + + /// Returns true if both yields are prefix or both are postfix. + pub const fn same_kind(&self, other: &Self) -> bool { + match (self, other) { + (YieldKind::Prefix(_), YieldKind::Prefix(_)) => true, + (YieldKind::Postfix(_), YieldKind::Postfix(_)) => true, + _ => false, + } + } +} + /// A literal in a meta item. #[derive(Clone, Encodable, Decodable, Debug, HashStable_Generic)] pub struct MetaItemLit { diff --git a/compiler/rustc_ast/src/mut_visit.rs b/compiler/rustc_ast/src/mut_visit.rs index 4a1636e6aec0e..b159e136245da 100644 --- a/compiler/rustc_ast/src/mut_visit.rs +++ b/compiler/rustc_ast/src/mut_visit.rs @@ -1813,8 +1813,11 @@ pub fn walk_expr(vis: &mut T, Expr { kind, id, span, attrs, token ExprKind::Paren(expr) => { vis.visit_expr(expr); } - ExprKind::Yield(expr) => { - visit_opt(expr, |expr| vis.visit_expr(expr)); + ExprKind::Yield(kind) => { + let expr = kind.expr_mut(); + if let Some(expr) = expr { + vis.visit_expr(expr); + } } ExprKind::Try(expr) => vis.visit_expr(expr), ExprKind::TryBlock(body) => vis.visit_block(body), diff --git a/compiler/rustc_ast/src/util/classify.rs b/compiler/rustc_ast/src/util/classify.rs index e43d78f6e7217..989ebe14bf8fc 100644 --- a/compiler/rustc_ast/src/util/classify.rs +++ b/compiler/rustc_ast/src/util/classify.rs @@ -182,11 +182,14 @@ pub fn expr_trailing_brace(mut expr: &ast::Expr) -> Option> { | Range(_, Some(e), _) | Ret(Some(e)) | Unary(_, e) - | Yield(Some(e)) | Yeet(Some(e)) | Become(e) => { expr = e; } + Yield(kind) => match kind.expr() { + Some(e) => expr = e, + None => break None, + }, Closure(closure) => { expr = &closure.body; } @@ -217,7 +220,6 @@ pub fn expr_trailing_brace(mut expr: &ast::Expr) -> Option> { Break(_, None) | Range(_, None, _) | Ret(None) - | Yield(None) | Array(_) | Call(_, _) | MethodCall(_) @@ -237,7 +239,9 @@ pub fn expr_trailing_brace(mut expr: &ast::Expr) -> Option> { | Yeet(None) | UnsafeBinderCast(..) | Err(_) - | Dummy => break None, + | Dummy => { + break None; + } } } } diff --git a/compiler/rustc_ast/src/visit.rs b/compiler/rustc_ast/src/visit.rs index cfcb0e23cb5e6..ce8d6df75afb2 100644 --- a/compiler/rustc_ast/src/visit.rs +++ b/compiler/rustc_ast/src/visit.rs @@ -1269,8 +1269,8 @@ pub fn walk_expr<'a, V: Visitor<'a>>(visitor: &mut V, expression: &'a Expr) -> V try_visit!(visitor.visit_ty(container)); walk_list!(visitor, visit_ident, fields.iter()); } - ExprKind::Yield(optional_expression) => { - visit_opt!(visitor, visit_expr, optional_expression); + ExprKind::Yield(kind) => { + visit_opt!(visitor, visit_expr, kind.expr()); } ExprKind::Try(subexpression) => try_visit!(visitor.visit_expr(subexpression)), ExprKind::TryBlock(body) => try_visit!(visitor.visit_block(body)), diff --git a/compiler/rustc_ast_lowering/src/expr.rs b/compiler/rustc_ast_lowering/src/expr.rs index 5bb6704dde45a..7f3d060bb8a37 100644 --- a/compiler/rustc_ast_lowering/src/expr.rs +++ b/compiler/rustc_ast_lowering/src/expr.rs @@ -351,7 +351,7 @@ impl<'hir> LoweringContext<'_, 'hir> { rest, ) } - ExprKind::Yield(opt_expr) => self.lower_expr_yield(e.span, opt_expr.as_deref()), + ExprKind::Yield(kind) => self.lower_expr_yield(e.span, kind.expr().map(|x| &**x)), ExprKind::Err(guar) => hir::ExprKind::Err(*guar), ExprKind::UnsafeBinderCast(kind, expr, ty) => hir::ExprKind::UnsafeBinderCast( diff --git a/compiler/rustc_ast_lowering/src/lib.rs b/compiler/rustc_ast_lowering/src/lib.rs index e24b45c5b1947..e08850da4a7a8 100644 --- a/compiler/rustc_ast_lowering/src/lib.rs +++ b/compiler/rustc_ast_lowering/src/lib.rs @@ -1513,16 +1513,22 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> { })) } - fn lower_fn_params_to_names(&mut self, decl: &FnDecl) -> &'hir [Ident] { + fn lower_fn_params_to_names(&mut self, decl: &FnDecl) -> &'hir [Option] { self.arena.alloc_from_iter(decl.inputs.iter().map(|param| match param.pat.kind { - PatKind::Ident(_, ident, _) => self.lower_ident(ident), - PatKind::Wild => Ident::new(kw::Underscore, self.lower_span(param.pat.span)), + PatKind::Ident(_, ident, _) => { + if ident.name != kw::Empty { + Some(self.lower_ident(ident)) + } else { + None + } + } + PatKind::Wild => Some(Ident::new(kw::Underscore, self.lower_span(param.pat.span))), _ => { self.dcx().span_delayed_bug( param.pat.span, "non-ident/wild param pat must trigger an error", ); - Ident::new(kw::Empty, self.lower_span(param.pat.span)) + None } })) } diff --git a/compiler/rustc_ast_pretty/src/pprust/state/expr.rs b/compiler/rustc_ast_pretty/src/pprust/state/expr.rs index e3c41f117abb8..7d9dc89bd7567 100644 --- a/compiler/rustc_ast_pretty/src/pprust/state/expr.rs +++ b/compiler/rustc_ast_pretty/src/pprust/state/expr.rs @@ -8,7 +8,7 @@ use rustc_ast::util::literal::escape_byte_str_symbol; use rustc_ast::util::parser::{self, ExprPrecedence, Fixity}; use rustc_ast::{ self as ast, BlockCheckMode, FormatAlignment, FormatArgPosition, FormatArgsPiece, FormatCount, - FormatDebugHex, FormatSign, FormatTrait, token, + FormatDebugHex, FormatSign, FormatTrait, YieldKind, token, }; use crate::pp::Breaks::Inconsistent; @@ -761,7 +761,7 @@ impl<'a> State<'a> { self.print_expr(e, FixupContext::default()); self.pclose(); } - ast::ExprKind::Yield(e) => { + ast::ExprKind::Yield(YieldKind::Prefix(e)) => { self.word("yield"); if let Some(expr) = e { @@ -773,6 +773,14 @@ impl<'a> State<'a> { ); } } + ast::ExprKind::Yield(YieldKind::Postfix(e)) => { + self.print_expr_cond_paren( + e, + e.precedence() < ExprPrecedence::Unambiguous, + fixup.leftmost_subexpression_with_dot(), + ); + self.word(".yield"); + } ast::ExprKind::Try(e) => { self.print_expr_cond_paren( e, diff --git a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs index 2694a1eda78d7..978186f76a1f0 100644 --- a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs @@ -2514,12 +2514,12 @@ impl<'infcx, 'tcx> MirBorrowckCtxt<'_, 'infcx, 'tcx> { let ty::Tuple(params) = tupled_params.kind() else { return }; // Find the first argument with a matching type, get its name - let Some((_, this_name)) = - params.iter().zip(tcx.hir_body_param_names(closure.body)).find(|(param_ty, name)| { + let Some(this_name) = params.iter().zip(tcx.hir_body_param_names(closure.body)).find_map( + |(param_ty, name)| { // FIXME: also support deref for stuff like `Rc` arguments - param_ty.peel_refs() == local_ty && name != &Ident::empty() - }) - else { + if param_ty.peel_refs() == local_ty { name } else { None } + }, + ) else { return; }; @@ -3787,7 +3787,7 @@ impl<'infcx, 'tcx> MirBorrowckCtxt<'_, 'infcx, 'tcx> { method_args, *fn_span, call_source.from_hir_call(), - Some(self.infcx.tcx.fn_arg_names(method_did)[0]), + self.infcx.tcx.fn_arg_names(method_did)[0], ) { err.note(format!("borrow occurs due to deref coercion to `{deref_target_ty}`")); diff --git a/compiler/rustc_borrowck/src/diagnostics/mod.rs b/compiler/rustc_borrowck/src/diagnostics/mod.rs index 208d510db2e1f..899e145c2c049 100644 --- a/compiler/rustc_borrowck/src/diagnostics/mod.rs +++ b/compiler/rustc_borrowck/src/diagnostics/mod.rs @@ -1029,7 +1029,7 @@ impl<'infcx, 'tcx> MirBorrowckCtxt<'_, 'infcx, 'tcx> { method_args, *fn_span, call_source.from_hir_call(), - Some(self.infcx.tcx.fn_arg_names(method_did)[0]), + self.infcx.tcx.fn_arg_names(method_did)[0], ); return FnSelfUse { diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/ffi.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/ffi.rs index b617f4d37f5bf..f6000e7284002 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/ffi.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/ffi.rs @@ -146,6 +146,7 @@ pub(crate) struct CoverageSpan { #[derive(Clone, Debug, Default)] pub(crate) struct Regions { pub(crate) code_regions: Vec, + pub(crate) expansion_regions: Vec, pub(crate) branch_regions: Vec, pub(crate) mcdc_branch_regions: Vec, pub(crate) mcdc_decision_regions: Vec, @@ -154,10 +155,16 @@ pub(crate) struct Regions { impl Regions { /// Returns true if none of this structure's tables contain any regions. pub(crate) fn has_no_regions(&self) -> bool { - let Self { code_regions, branch_regions, mcdc_branch_regions, mcdc_decision_regions } = - self; + let Self { + code_regions, + expansion_regions, + branch_regions, + mcdc_branch_regions, + mcdc_decision_regions, + } = self; code_regions.is_empty() + && expansion_regions.is_empty() && branch_regions.is_empty() && mcdc_branch_regions.is_empty() && mcdc_decision_regions.is_empty() @@ -172,6 +179,14 @@ pub(crate) struct CodeRegion { pub(crate) counter: Counter, } +/// Must match the layout of `LLVMRustCoverageExpansionRegion`. +#[derive(Clone, Debug)] +#[repr(C)] +pub(crate) struct ExpansionRegion { + pub(crate) cov_span: CoverageSpan, + pub(crate) expanded_file_id: u32, +} + /// Must match the layout of `LLVMRustCoverageBranchRegion`. #[derive(Clone, Debug)] #[repr(C)] diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/llvm_cov.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/llvm_cov.rs index 2cd7fa3225acd..907d6d41a1fb5 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/llvm_cov.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/llvm_cov.rs @@ -63,8 +63,18 @@ pub(crate) fn write_function_mappings_to_buffer( expressions: &[ffi::CounterExpression], regions: &ffi::Regions, ) -> Vec { - let ffi::Regions { code_regions, branch_regions, mcdc_branch_regions, mcdc_decision_regions } = - regions; + let ffi::Regions { + code_regions, + expansion_regions, + branch_regions, + mcdc_branch_regions, + mcdc_decision_regions, + } = regions; + + // SAFETY: + // - All types are FFI-compatible and have matching representations in Rust/C++. + // - For pointer/length pairs, the pointer and length come from the same vector or slice. + // - C++ code does not retain any pointers after the call returns. llvm::build_byte_buffer(|buffer| unsafe { llvm::LLVMRustCoverageWriteFunctionMappingsToBuffer( virtual_file_mapping.as_ptr(), @@ -73,6 +83,8 @@ pub(crate) fn write_function_mappings_to_buffer( expressions.len(), code_regions.as_ptr(), code_regions.len(), + expansion_regions.as_ptr(), + expansion_regions.len(), branch_regions.as_ptr(), branch_regions.len(), mcdc_branch_regions.as_ptr(), diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs index 5b487bc1a8bde..048e1988c3278 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs @@ -120,12 +120,22 @@ fn fill_region_tables<'tcx>( // Associate that global file ID with a local file ID for this function. let local_file_id = covfun.virtual_file_mapping.local_id_for_global(global_file_id); - let ffi::Regions { code_regions, branch_regions, mcdc_branch_regions, mcdc_decision_regions } = - &mut covfun.regions; - - let make_cov_span = - |span: Span| spans::make_coverage_span(local_file_id, source_map, &source_file, span); + // In rare cases, _all_ of a function's spans are discarded, and coverage + // codegen needs to handle that gracefully to avoid #133606. + // It's hard for tests to trigger this organically, so instead we set + // `-Zcoverage-options=discard-all-spans-in-codegen` to force it to occur. let discard_all = tcx.sess.coverage_discard_all_spans_in_codegen(); + let make_coords = |span: Span| { + if discard_all { None } else { spans::make_coords(source_map, &source_file, span) } + }; + + let ffi::Regions { + code_regions, + expansion_regions: _, // FIXME(Zalathar): Fill out support for expansion regions + branch_regions, + mcdc_branch_regions, + mcdc_decision_regions, + } = &mut covfun.regions; // For each counter/region pair in this function+file, convert it to a // form suitable for FFI. @@ -140,17 +150,8 @@ fn fill_region_tables<'tcx>( ffi::Counter::from_term(term) }; - // Convert the `Span` into coordinates that we can pass to LLVM, or - // discard the span if conversion fails. In rare, cases _all_ of a - // function's spans are discarded, and the rest of coverage codegen - // needs to handle that gracefully to avoid a repeat of #133606. - // We don't have a good test case for triggering that organically, so - // instead we set `-Zcoverage-options=discard-all-spans-in-codegen` - // to force it to occur. - let Some(cov_span) = make_cov_span(span) else { continue }; - if discard_all { - continue; - } + let Some(coords) = make_coords(span) else { continue }; + let cov_span = coords.make_coverage_span(local_file_id); match *kind { MappingKind::Code { bcb } => { diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/spans.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/spans.rs index 3193be31ada9f..39a59560c9d3e 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/spans.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/spans.rs @@ -5,22 +5,40 @@ use tracing::debug; use crate::coverageinfo::ffi; use crate::coverageinfo::mapgen::LocalFileId; +/// Line and byte-column coordinates of a source code span within some file. +/// The file itself must be tracked separately. +#[derive(Clone, Copy, Debug)] +pub(crate) struct Coords { + /// 1-based starting line of the source code span. + pub(crate) start_line: u32, + /// 1-based starting column (in bytes) of the source code span. + pub(crate) start_col: u32, + /// 1-based ending line of the source code span. + pub(crate) end_line: u32, + /// 1-based ending column (in bytes) of the source code span. High bit must be unset. + pub(crate) end_col: u32, +} + +impl Coords { + /// Attaches a local file ID to these coordinates to produce an `ffi::CoverageSpan`. + pub(crate) fn make_coverage_span(&self, local_file_id: LocalFileId) -> ffi::CoverageSpan { + let &Self { start_line, start_col, end_line, end_col } = self; + let file_id = local_file_id.as_u32(); + ffi::CoverageSpan { file_id, start_line, start_col, end_line, end_col } + } +} + /// Converts the span into its start line and column, and end line and column. /// /// Line numbers and column numbers are 1-based. Unlike most column numbers emitted by /// the compiler, these column numbers are denoted in **bytes**, because that's what /// LLVM's `llvm-cov` tool expects to see in coverage maps. /// -/// Returns `None` if the conversion failed for some reason. This shouldn't happen, +/// Returns `None` if the conversion failed for some reason. This should be uncommon, /// but it's hard to rule out entirely (especially in the presence of complex macros /// or other expansions), and if it does happen then skipping a span or function is /// better than an ICE or `llvm-cov` failure that the user might have no way to avoid. -pub(crate) fn make_coverage_span( - file_id: LocalFileId, - source_map: &SourceMap, - file: &SourceFile, - span: Span, -) -> Option { +pub(crate) fn make_coords(source_map: &SourceMap, file: &SourceFile, span: Span) -> Option { let span = ensure_non_empty_span(source_map, span)?; let lo = span.lo(); @@ -44,8 +62,7 @@ pub(crate) fn make_coverage_span( start_line = source_map.doctest_offset_line(&file.name, start_line); end_line = source_map.doctest_offset_line(&file.name, end_line); - check_coverage_span(ffi::CoverageSpan { - file_id: file_id.as_u32(), + check_coords(Coords { start_line: start_line as u32, start_col: start_col as u32, end_line: end_line as u32, @@ -80,8 +97,8 @@ fn ensure_non_empty_span(source_map: &SourceMap, span: Span) -> Option { /// it will immediately exit with a fatal error. To prevent that from happening, /// discard regions that are improperly ordered, or might be interpreted in a /// way that makes them improperly ordered. -fn check_coverage_span(cov_span: ffi::CoverageSpan) -> Option { - let ffi::CoverageSpan { file_id: _, start_line, start_col, end_line, end_col } = cov_span; +fn check_coords(coords: Coords) -> Option { + let Coords { start_line, start_col, end_line, end_col } = coords; // Line/column coordinates are supposed to be 1-based. If we ever emit // coordinates of 0, `llvm-cov` might misinterpret them. @@ -94,17 +111,17 @@ fn check_coverage_span(cov_span: ffi::CoverageSpan) -> Option let is_ordered = (start_line, start_col) <= (end_line, end_col); if all_nonzero && end_col_has_high_bit_unset && is_ordered { - Some(cov_span) + Some(coords) } else { debug!( - ?cov_span, + ?coords, ?all_nonzero, ?end_col_has_high_bit_unset, ?is_ordered, "Skipping source region that would be misinterpreted or rejected by LLVM" ); // If this happens in a debug build, ICE to make it easier to notice. - debug_assert!(false, "Improper source region: {cov_span:?}"); + debug_assert!(false, "Improper source region: {coords:?}"); None } } diff --git a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs index 39087a4d6f41d..83efb3ea66039 100644 --- a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs +++ b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs @@ -2019,6 +2019,8 @@ unsafe extern "C" { NumExpressions: size_t, CodeRegions: *const crate::coverageinfo::ffi::CodeRegion, NumCodeRegions: size_t, + ExpansionRegions: *const crate::coverageinfo::ffi::ExpansionRegion, + NumExpansionRegions: size_t, BranchRegions: *const crate::coverageinfo::ffi::BranchRegion, NumBranchRegions: size_t, MCDCBranchRegions: *const crate::coverageinfo::ffi::MCDCBranchRegion, diff --git a/compiler/rustc_const_eval/messages.ftl b/compiler/rustc_const_eval/messages.ftl index ccf9b240d4088..dd481e04abbdc 100644 --- a/compiler/rustc_const_eval/messages.ftl +++ b/compiler/rustc_const_eval/messages.ftl @@ -93,7 +93,7 @@ const_eval_expected_inbounds_pointer = } const_eval_extern_static = - cannot access extern static ({$did}) + cannot access extern static `{$did}` const_eval_extern_type_field = `extern type` field does not have a known offset const_eval_fn_ptr_call = @@ -381,7 +381,7 @@ const_eval_thread_local_access = thread-local statics cannot be accessed at compile-time const_eval_thread_local_static = - cannot access thread local static ({$did}) + cannot access thread local static `{$did}` const_eval_too_generic = encountered overly generic constant const_eval_too_many_caller_args = diff --git a/compiler/rustc_const_eval/src/errors.rs b/compiler/rustc_const_eval/src/errors.rs index b020eeccf717f..e2675e2f4c900 100644 --- a/compiler/rustc_const_eval/src/errors.rs +++ b/compiler/rustc_const_eval/src/errors.rs @@ -898,6 +898,7 @@ impl ReportErrorExt for UnsupportedOpInfo { UnsupportedOpInfo::ExternStatic(_) => const_eval_extern_static, } } + fn add_args(self, diag: &mut Diag<'_, G>) { use UnsupportedOpInfo::*; @@ -917,9 +918,9 @@ impl ReportErrorExt for UnsupportedOpInfo { OverwritePartialPointer(ptr) | ReadPartialPointer(ptr) => { diag.arg("ptr", ptr); } - ThreadLocalStatic(did) | ExternStatic(did) => { - diag.arg("did", format!("{did:?}")); - } + ThreadLocalStatic(did) | ExternStatic(did) => rustc_middle::ty::tls::with(|tcx| { + diag.arg("did", tcx.def_path_str(did)); + }), } } } diff --git a/compiler/rustc_hir/src/hir.rs b/compiler/rustc_hir/src/hir.rs index b5857e359a2ce..751c379b21a64 100644 --- a/compiler/rustc_hir/src/hir.rs +++ b/compiler/rustc_hir/src/hir.rs @@ -2949,7 +2949,7 @@ impl<'hir> TraitItem<'hir> { #[derive(Debug, Clone, Copy, HashStable_Generic)] pub enum TraitFn<'hir> { /// No default body in the trait, just a signature. - Required(&'hir [Ident]), + Required(&'hir [Option]), /// Both signature and body are provided in the trait. Provided(BodyId), @@ -3354,7 +3354,9 @@ pub struct BareFnTy<'hir> { pub abi: ExternAbi, pub generic_params: &'hir [GenericParam<'hir>], pub decl: &'hir FnDecl<'hir>, - pub param_names: &'hir [Ident], + // `Option` because bare fn parameter names are optional. We also end up + // with `None` in some error cases, e.g. invalid parameter patterns. + pub param_names: &'hir [Option], } #[derive(Debug, Clone, Copy, HashStable_Generic)] @@ -4335,7 +4337,12 @@ impl ForeignItem<'_> { #[derive(Debug, Clone, Copy, HashStable_Generic)] pub enum ForeignItemKind<'hir> { /// A foreign function. - Fn(FnSig<'hir>, &'hir [Ident], &'hir Generics<'hir>), + /// + /// All argument idents are actually always present (i.e. `Some`), but + /// `&[Option]` is used because of code paths shared with `TraitFn` + /// and `BareFnTy`. The sharing is due to all of these cases not allowing + /// arbitrary patterns for parameters. + Fn(FnSig<'hir>, &'hir [Option], &'hir Generics<'hir>), /// A foreign static item (`static ext: u8`). Static(&'hir Ty<'hir>, Mutability, Safety), /// A foreign type. diff --git a/compiler/rustc_hir/src/intravisit.rs b/compiler/rustc_hir/src/intravisit.rs index b79ae1e7cc21e..506358341b501 100644 --- a/compiler/rustc_hir/src/intravisit.rs +++ b/compiler/rustc_hir/src/intravisit.rs @@ -655,7 +655,9 @@ pub fn walk_foreign_item<'v, V: Visitor<'v>>( ForeignItemKind::Fn(ref sig, param_names, ref generics) => { try_visit!(visitor.visit_generics(generics)); try_visit!(visitor.visit_fn_decl(sig.decl)); - walk_list!(visitor, visit_ident, param_names.iter().copied()); + for ident in param_names.iter().copied() { + visit_opt!(visitor, visit_ident, ident); + } } ForeignItemKind::Static(ref typ, _, _) => { try_visit!(visitor.visit_ty_unambig(typ)); @@ -1169,7 +1171,9 @@ pub fn walk_trait_item<'v, V: Visitor<'v>>( } TraitItemKind::Fn(ref sig, TraitFn::Required(param_names)) => { try_visit!(visitor.visit_fn_decl(sig.decl)); - walk_list!(visitor, visit_ident, param_names.iter().copied()); + for ident in param_names.iter().copied() { + visit_opt!(visitor, visit_ident, ident); + } } TraitItemKind::Fn(ref sig, TraitFn::Provided(body_id)) => { try_visit!(visitor.visit_fn( diff --git a/compiler/rustc_hir_analysis/src/check/compare_impl_item.rs b/compiler/rustc_hir_analysis/src/check/compare_impl_item.rs index ca820deebdfad..84d07c711fa40 100644 --- a/compiler/rustc_hir_analysis/src/check/compare_impl_item.rs +++ b/compiler/rustc_hir_analysis/src/check/compare_impl_item.rs @@ -1034,7 +1034,13 @@ fn report_trait_method_mismatch<'tcx>( let span = tcx .hir_body_param_names(body) .zip(sig.decl.inputs.iter()) - .map(|(param, ty)| param.span.to(ty.span)) + .map(|(param_name, ty)| { + if let Some(param_name) = param_name { + param_name.span.to(ty.span) + } else { + ty.span + } + }) .next() .unwrap_or(impl_err_span); diff --git a/compiler/rustc_hir_analysis/src/coherence/orphan.rs b/compiler/rustc_hir_analysis/src/coherence/orphan.rs index 0b7fc44460ead..74ba4ffe25ea1 100644 --- a/compiler/rustc_hir_analysis/src/coherence/orphan.rs +++ b/compiler/rustc_hir_analysis/src/coherence/orphan.rs @@ -3,11 +3,10 @@ use rustc_data_structures::fx::FxIndexSet; use rustc_errors::ErrorGuaranteed; -use rustc_infer::infer::{InferCtxt, TyCtxtInferExt}; +use rustc_infer::infer::{DefineOpaqueTypes, InferCtxt, TyCtxtInferExt}; use rustc_lint_defs::builtin::UNCOVERED_PARAM_IN_PROJECTION; use rustc_middle::ty::{ - self, Ty, TyCtxt, TypeFoldable, TypeFolder, TypeSuperFoldable, TypeSuperVisitable, - TypeVisitable, TypeVisitableExt, TypeVisitor, TypingMode, + self, Ty, TyCtxt, TypeSuperVisitable, TypeVisitable, TypeVisitableExt, TypeVisitor, TypingMode, }; use rustc_middle::{bug, span_bug}; use rustc_span::def_id::{DefId, LocalDefId}; @@ -356,13 +355,20 @@ fn orphan_check<'tcx>( }) } OrphanCheckErr::NonLocalInputType(tys) => { - let generics = tcx.generics_of(impl_def_id); - let tys = tys - .into_iter() - .map(|(ty, is_target_ty)| { - (ty.fold_with(&mut TyVarReplacer { infcx: &infcx, generics }), is_target_ty) - }) - .collect(); + let tys = infcx.probe(|_| { + // Map the unconstrained args back to their params, + // ignoring any type unification errors. + for (arg, id_arg) in + std::iter::zip(args, ty::GenericArgs::identity_for_item(tcx, impl_def_id)) + { + let _ = infcx.at(&cause, ty::ParamEnv::empty()).eq( + DefineOpaqueTypes::No, + arg, + id_arg, + ); + } + infcx.resolve_vars_if_possible(tys) + }); OrphanCheckErr::NonLocalInputType(tys) } }) @@ -536,40 +542,3 @@ impl<'tcx> TypeVisitor> for UncoveredTyParamCollector<'_, 'tcx> { } } } - -struct TyVarReplacer<'cx, 'tcx> { - infcx: &'cx InferCtxt<'tcx>, - generics: &'tcx ty::Generics, -} - -impl<'cx, 'tcx> TypeFolder> for TyVarReplacer<'cx, 'tcx> { - fn cx(&self) -> TyCtxt<'tcx> { - self.infcx.tcx - } - - fn fold_ty(&mut self, ty: Ty<'tcx>) -> Ty<'tcx> { - if !ty.has_type_flags(ty::TypeFlags::HAS_TY_INFER) { - return ty; - } - let ty::Infer(ty::TyVar(vid)) = *ty.kind() else { - return ty.super_fold_with(self); - }; - let origin = self.infcx.type_var_origin(vid); - if let Some(def_id) = origin.param_def_id { - // The generics of an `impl` don't have a parent, we can index directly. - let index = self.generics.param_def_id_to_index[&def_id]; - let name = self.generics.own_params[index as usize].name; - - Ty::new_param(self.infcx.tcx, index, name) - } else { - ty - } - } - - fn fold_const(&mut self, ct: ty::Const<'tcx>) -> ty::Const<'tcx> { - if !ct.has_type_flags(ty::TypeFlags::HAS_TY_INFER) { - return ct; - } - ct.super_fold_with(self) - } -} diff --git a/compiler/rustc_hir_analysis/src/hir_ty_lowering/cmse.rs b/compiler/rustc_hir_analysis/src/hir_ty_lowering/cmse.rs index 5fed2e352879c..170500c7a1628 100644 --- a/compiler/rustc_hir_analysis/src/hir_ty_lowering/cmse.rs +++ b/compiler/rustc_hir_analysis/src/hir_ty_lowering/cmse.rs @@ -49,10 +49,12 @@ pub(crate) fn validate_cmse_abi<'tcx>( Ok(Err(index)) => { // fn(x: u32, u32, u32, u16, y: u16) -> u32, // ^^^^^^ - let span = bare_fn_ty.param_names[index] - .span - .to(bare_fn_ty.decl.inputs[index].span) - .to(bare_fn_ty.decl.inputs.last().unwrap().span); + let span = if let Some(ident) = bare_fn_ty.param_names[index] { + ident.span.to(bare_fn_ty.decl.inputs[index].span) + } else { + bare_fn_ty.decl.inputs[index].span + } + .to(bare_fn_ty.decl.inputs.last().unwrap().span); let plural = bare_fn_ty.param_names.len() - index != 1; dcx.emit_err(errors::CmseInputsStackSpill { span, plural, abi }); } diff --git a/compiler/rustc_hir_pretty/src/lib.rs b/compiler/rustc_hir_pretty/src/lib.rs index 98b81dd3def34..ddaca89ccf82d 100644 --- a/compiler/rustc_hir_pretty/src/lib.rs +++ b/compiler/rustc_hir_pretty/src/lib.rs @@ -2,6 +2,7 @@ //! the definitions in this file have equivalents in `rustc_ast_pretty`. // tidy-alphabetical-start +#![feature(let_chains)] #![recursion_limit = "256"] // tidy-alphabetical-end @@ -898,7 +899,7 @@ impl<'a> State<'a> { ident: Ident, m: &hir::FnSig<'_>, generics: &hir::Generics<'_>, - arg_names: &[Ident], + arg_names: &[Option], body_id: Option, ) { self.print_fn(m.decl, m.header, Some(ident.name), generics, arg_names, body_id); @@ -2121,7 +2122,7 @@ impl<'a> State<'a> { header: hir::FnHeader, name: Option, generics: &hir::Generics<'_>, - arg_names: &[Ident], + arg_names: &[Option], body_id: Option, ) { self.print_fn_header_info(header); @@ -2141,7 +2142,7 @@ impl<'a> State<'a> { s.print_implicit_self(&decl.implicit_self); } else { if let Some(arg_name) = arg_names.get(i) { - if arg_name.name != kw::Empty { + if let Some(arg_name) = arg_name { s.word(arg_name.to_string()); s.word(":"); s.space(); @@ -2451,7 +2452,7 @@ impl<'a> State<'a> { decl: &hir::FnDecl<'_>, name: Option, generic_params: &[hir::GenericParam<'_>], - arg_names: &[Ident], + arg_names: &[Option], ) { self.ibox(INDENT_UNIT); self.print_formal_generic_params(generic_params); diff --git a/compiler/rustc_hir_typeck/src/closure.rs b/compiler/rustc_hir_typeck/src/closure.rs index fc1f9a7f2e072..a4776338f6c39 100644 --- a/compiler/rustc_hir_typeck/src/closure.rs +++ b/compiler/rustc_hir_typeck/src/closure.rs @@ -164,11 +164,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let resume_ty = liberated_sig.inputs().get(0).copied().unwrap_or(tcx.types.unit); let interior = self.next_ty_var(expr_span); - self.deferred_coroutine_interiors.borrow_mut().push(( - expr_def_id, - body.id(), - interior, - )); + self.deferred_coroutine_interiors.borrow_mut().push((expr_def_id, interior)); // Coroutines that come from coroutine closures have not yet determined // their kind ty, so make a fresh infer var which will be constrained diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs index 64886957ff37f..d75c2853ba080 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs @@ -633,18 +633,20 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let coroutines = std::mem::take(&mut *self.deferred_coroutine_interiors.borrow_mut()); debug!(?coroutines); - for &(expr_def_id, body_id, interior) in coroutines.iter() { - debug!(?expr_def_id); + let mut obligations = vec![]; + + for &(coroutine_def_id, interior) in coroutines.iter() { + debug!(?coroutine_def_id); // Create the `CoroutineWitness` type that we will unify with `interior`. let args = ty::GenericArgs::identity_for_item( self.tcx, - self.tcx.typeck_root_def_id(expr_def_id.to_def_id()), + self.tcx.typeck_root_def_id(coroutine_def_id.to_def_id()), ); - let witness = Ty::new_coroutine_witness(self.tcx, expr_def_id.to_def_id(), args); + let witness = Ty::new_coroutine_witness(self.tcx, coroutine_def_id.to_def_id(), args); // Unify `interior` with `witness` and collect all the resulting obligations. - let span = self.tcx.hir_body(body_id).value.span; + let span = self.tcx.hir_body_owned_by(coroutine_def_id).value.span; let ty::Infer(ty::InferTy::TyVar(_)) = interior.kind() else { span_bug!(span, "coroutine interior witness not infer: {:?}", interior.kind()) }; @@ -653,15 +655,20 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // Will never define opaque types, as all we do is instantiate a type variable. .eq(DefineOpaqueTypes::Yes, interior, witness) .expect("Failed to unify coroutine interior type"); - let mut obligations = ok.obligations; - // Also collect the obligations that were unstalled by this unification. + obligations.extend(ok.obligations); + } + + // FIXME: Use a real visitor for unstalled obligations in the new solver. + if !coroutines.is_empty() { obligations .extend(self.fulfillment_cx.borrow_mut().drain_unstalled_obligations(&self.infcx)); - - let obligations = obligations.into_iter().map(|o| (o.predicate, o.cause)); - self.typeck_results.borrow_mut().coroutine_stalled_predicates.extend(obligations); } + + self.typeck_results + .borrow_mut() + .coroutine_stalled_predicates + .extend(obligations.into_iter().map(|o| (o.predicate, o.cause))); } #[instrument(skip(self), level = "debug")] diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs index 90bdb3c4b3739..f4bd7ec701f8a 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs @@ -1135,7 +1135,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { && self.tcx.def_kind(fn_def_id).is_fn_like() && let self_implicit = matches!(call_expr.kind, hir::ExprKind::MethodCall(..)) as usize - && let Some(arg) = + && let Some(Some(arg)) = self.tcx.fn_arg_names(fn_def_id).get(expected_idx.as_usize() + self_implicit) && arg.name != kw::SelfLower { @@ -2678,7 +2678,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { params.get(is_method as usize..params.len() - sig.decl.c_variadic as usize)?; debug_assert_eq!(params.len(), fn_inputs.len()); Some(( - fn_inputs.zip(params.iter().map(|¶m| FnParam::Name(param))).collect(), + fn_inputs.zip(params.iter().map(|&ident| FnParam::Name(ident))).collect(), generics, )) } @@ -2709,14 +2709,20 @@ impl<'tcx> Visitor<'tcx> for FindClosureArg<'tcx> { #[derive(Clone, Copy)] enum FnParam<'hir> { Param(&'hir hir::Param<'hir>), - Name(Ident), + Name(Option), } impl FnParam<'_> { fn span(&self) -> Span { match self { Self::Param(param) => param.span, - Self::Name(ident) => ident.span, + Self::Name(ident) => { + if let Some(ident) = ident { + ident.span + } else { + DUMMY_SP + } + } } } @@ -2733,7 +2739,8 @@ impl FnParam<'_> { Some(ident.name) } FnParam::Name(ident) - if ident.name != kw::Empty && ident.name != kw::Underscore => + if let Some(ident) = ident + && ident.name != kw::Underscore => { Some(ident.name) } diff --git a/compiler/rustc_hir_typeck/src/method/suggest.rs b/compiler/rustc_hir_typeck/src/method/suggest.rs index cdfae51583b60..908c3ee2eb8e3 100644 --- a/compiler/rustc_hir_typeck/src/method/suggest.rs +++ b/compiler/rustc_hir_typeck/src/method/suggest.rs @@ -3766,7 +3766,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { { let self_first_arg = match method { hir::TraitFn::Required([ident, ..]) => { - ident.name == kw::SelfLower + matches!(ident, Some(Ident { name: kw::SelfLower, .. })) } hir::TraitFn::Provided(body_id) => { self.tcx.hir_body(*body_id).params.first().is_some_and( diff --git a/compiler/rustc_hir_typeck/src/typeck_root_ctxt.rs b/compiler/rustc_hir_typeck/src/typeck_root_ctxt.rs index 88f4f7caa95d8..5b4fc51cec885 100644 --- a/compiler/rustc_hir_typeck/src/typeck_root_ctxt.rs +++ b/compiler/rustc_hir_typeck/src/typeck_root_ctxt.rs @@ -59,7 +59,7 @@ pub(crate) struct TypeckRootCtxt<'tcx> { pub(super) deferred_asm_checks: RefCell, HirId)>>, - pub(super) deferred_coroutine_interiors: RefCell)>>, + pub(super) deferred_coroutine_interiors: RefCell)>>, pub(super) deferred_repeat_expr_checks: RefCell, Ty<'tcx>, ty::Const<'tcx>)>>, diff --git a/compiler/rustc_lint/src/nonstandard_style.rs b/compiler/rustc_lint/src/nonstandard_style.rs index 715e3506ab824..752636ccaf061 100644 --- a/compiler/rustc_lint/src/nonstandard_style.rs +++ b/compiler/rustc_lint/src/nonstandard_style.rs @@ -424,7 +424,9 @@ impl<'tcx> LateLintPass<'tcx> for NonSnakeCase { if let hir::TraitItemKind::Fn(_, hir::TraitFn::Required(pnames)) = item.kind { self.check_snake_case(cx, "trait method", &item.ident); for param_name in pnames { - self.check_snake_case(cx, "variable", param_name); + if let Some(param_name) = param_name { + self.check_snake_case(cx, "variable", param_name); + } } } } diff --git a/compiler/rustc_llvm/llvm-wrapper/CoverageMappingWrapper.cpp b/compiler/rustc_llvm/llvm-wrapper/CoverageMappingWrapper.cpp index 0471baa1f9cad..b8884486c3330 100644 --- a/compiler/rustc_llvm/llvm-wrapper/CoverageMappingWrapper.cpp +++ b/compiler/rustc_llvm/llvm-wrapper/CoverageMappingWrapper.cpp @@ -77,6 +77,13 @@ struct LLVMRustCoverageCodeRegion { LLVMRustCounter Count; }; +// Must match the layout of +// `rustc_codegen_llvm::coverageinfo::ffi::ExpansionRegion`. +struct LLVMRustCoverageExpansionRegion { + LLVMRustCoverageSpan Span; + uint32_t ExpandedFileID; +}; + // Must match the layout of // `rustc_codegen_llvm::coverageinfo::ffi::BranchRegion`. struct LLVMRustCoverageBranchRegion { @@ -151,6 +158,8 @@ extern "C" void LLVMRustCoverageWriteFunctionMappingsToBuffer( const unsigned *VirtualFileMappingIDs, size_t NumVirtualFileMappingIDs, const LLVMRustCounterExpression *RustExpressions, size_t NumExpressions, const LLVMRustCoverageCodeRegion *CodeRegions, size_t NumCodeRegions, + const LLVMRustCoverageExpansionRegion *ExpansionRegions, + size_t NumExpansionRegions, const LLVMRustCoverageBranchRegion *BranchRegions, size_t NumBranchRegions, const LLVMRustCoverageMCDCBranchRegion *MCDCBranchRegions, size_t NumMCDCBranchRegions, @@ -179,6 +188,13 @@ extern "C" void LLVMRustCoverageWriteFunctionMappingsToBuffer( Region.Span.ColumnStart, Region.Span.LineEnd, Region.Span.ColumnEnd)); } + // Expansion regions: + for (const auto &Region : ArrayRef(ExpansionRegions, NumExpansionRegions)) { + MappingRegions.push_back(coverage::CounterMappingRegion::makeExpansion( + Region.Span.FileID, Region.ExpandedFileID, Region.Span.LineStart, + Region.Span.ColumnStart, Region.Span.LineEnd, Region.Span.ColumnEnd)); + } + // Branch regions: for (const auto &Region : ArrayRef(BranchRegions, NumBranchRegions)) { MappingRegions.push_back(coverage::CounterMappingRegion::makeBranchRegion( diff --git a/compiler/rustc_metadata/src/rmeta/decoder.rs b/compiler/rustc_metadata/src/rmeta/decoder.rs index f6cf218db9d0b..4610a571da088 100644 --- a/compiler/rustc_metadata/src/rmeta/decoder.rs +++ b/compiler/rustc_metadata/src/rmeta/decoder.rs @@ -1318,7 +1318,7 @@ impl<'a> CrateMetadataRef<'a> { .expect("argument names not encoded for a function") .decode((self, sess)) .nth(0) - .is_some_and(|ident| ident.name == kw::SelfLower) + .is_some_and(|ident| matches!(ident, Some(Ident { name: kw::SelfLower, .. }))) } fn get_associated_item_or_field_def_ids(self, id: DefIndex) -> impl Iterator { diff --git a/compiler/rustc_metadata/src/rmeta/mod.rs b/compiler/rustc_metadata/src/rmeta/mod.rs index 5536c93f84a43..dc453b1e747ca 100644 --- a/compiler/rustc_metadata/src/rmeta/mod.rs +++ b/compiler/rustc_metadata/src/rmeta/mod.rs @@ -443,7 +443,7 @@ define_tables! { rendered_const: Table>, rendered_precise_capturing_args: Table>>, asyncness: Table, - fn_arg_names: Table>, + fn_arg_names: Table>>, coroutine_kind: Table, coroutine_for_closure: Table, coroutine_by_move_body_def_id: Table, diff --git a/compiler/rustc_middle/src/hir/map.rs b/compiler/rustc_middle/src/hir/map.rs index 2e589150d3ee6..f17efab81ec53 100644 --- a/compiler/rustc_middle/src/hir/map.rs +++ b/compiler/rustc_middle/src/hir/map.rs @@ -280,11 +280,11 @@ impl<'tcx> TyCtxt<'tcx> { }) } - pub fn hir_body_param_names(self, id: BodyId) -> impl Iterator { + pub fn hir_body_param_names(self, id: BodyId) -> impl Iterator> { self.hir_body(id).params.iter().map(|param| match param.pat.kind { - PatKind::Binding(_, _, ident, _) => ident, - PatKind::Wild => Ident::new(kw::Underscore, param.pat.span), - _ => Ident::empty(), + PatKind::Binding(_, _, ident, _) => Some(ident), + PatKind::Wild => Some(Ident::new(kw::Underscore, param.pat.span)), + _ => None, }) } diff --git a/compiler/rustc_middle/src/query/mod.rs b/compiler/rustc_middle/src/query/mod.rs index 94a5a3769a322..527c18addbe12 100644 --- a/compiler/rustc_middle/src/query/mod.rs +++ b/compiler/rustc_middle/src/query/mod.rs @@ -1410,7 +1410,7 @@ rustc_queries! { desc { |tcx| "computing target features for inline asm of `{}`", tcx.def_path_str(def_id) } } - query fn_arg_names(def_id: DefId) -> &'tcx [rustc_span::Ident] { + query fn_arg_names(def_id: DefId) -> &'tcx [Option] { desc { |tcx| "looking up function parameter names for `{}`", tcx.def_path_str(def_id) } separate_provide_extern } diff --git a/compiler/rustc_next_trait_solver/src/coherence.rs b/compiler/rustc_next_trait_solver/src/coherence.rs index 5329020360053..f8215a228f5b6 100644 --- a/compiler/rustc_next_trait_solver/src/coherence.rs +++ b/compiler/rustc_next_trait_solver/src/coherence.rs @@ -4,7 +4,8 @@ use std::ops::ControlFlow; use derive_where::derive_where; use rustc_type_ir::inherent::*; use rustc_type_ir::{ - self as ty, InferCtxtLike, Interner, TypeVisitable, TypeVisitableExt, TypeVisitor, + self as ty, InferCtxtLike, Interner, TrivialTypeTraversalImpls, TypeVisitable, + TypeVisitableExt, TypeVisitor, }; use tracing::instrument; @@ -95,6 +96,8 @@ pub fn trait_ref_is_local_or_fundamental(tcx: I, trait_ref: ty::Tra trait_ref.def_id.is_local() || tcx.trait_is_fundamental(trait_ref.def_id) } +TrivialTypeTraversalImpls! { IsFirstInputType, } + #[derive(Debug, Copy, Clone)] pub enum IsFirstInputType { No, diff --git a/compiler/rustc_parse/src/parser/expr.rs b/compiler/rustc_parse/src/parser/expr.rs index cd931888fbaa1..c48f91643e88a 100644 --- a/compiler/rustc_parse/src/parser/expr.rs +++ b/compiler/rustc_parse/src/parser/expr.rs @@ -17,6 +17,7 @@ use rustc_ast::{ self as ast, AnonConst, Arm, AttrStyle, AttrVec, BinOp, BinOpKind, BlockCheckMode, CaptureBy, ClosureBinder, DUMMY_NODE_ID, Expr, ExprField, ExprKind, FnDecl, FnRetTy, Label, MacCall, MetaItemLit, Movability, Param, RangeLimits, StmtKind, Ty, TyKind, UnOp, UnsafeBinderCastKind, + YieldKind, }; use rustc_ast_pretty::pprust; use rustc_data_structures::stack::ensure_sufficient_stack; @@ -1310,6 +1311,15 @@ impl<'a> Parser<'a> { return self.parse_match_block(lo, match_span, self_arg, MatchKind::Postfix); } + // Parse a postfix `yield`. + if self.eat_keyword(exp!(Yield)) { + let yield_span = self.prev_token.span; + self.psess.gated_spans.gate(sym::yield_expr, yield_span); + return Ok( + self.mk_expr(lo.to(yield_span), ExprKind::Yield(YieldKind::Postfix(self_arg))) + ); + } + let fn_span_lo = self.token.span; let mut seg = self.parse_path_segment(PathStyle::Expr, None)?; self.check_trailing_angle_brackets(&seg, &[exp!(OpenParen)]); @@ -1884,7 +1894,7 @@ impl<'a> Parser<'a> { /// Parse `"yield" expr?`. fn parse_expr_yield(&mut self) -> PResult<'a, P> { let lo = self.prev_token.span; - let kind = ExprKind::Yield(self.parse_expr_opt()?); + let kind = ExprKind::Yield(YieldKind::Prefix(self.parse_expr_opt()?)); let span = lo.to(self.prev_token.span); self.psess.gated_spans.gate(sym::yield_expr, span); let expr = self.mk_expr(span, kind); diff --git a/compiler/rustc_resolve/src/late/diagnostics.rs b/compiler/rustc_resolve/src/late/diagnostics.rs index bcfcc8000c718..3d666055a94fb 100644 --- a/compiler/rustc_resolve/src/late/diagnostics.rs +++ b/compiler/rustc_resolve/src/late/diagnostics.rs @@ -2217,12 +2217,11 @@ impl<'ast, 'ra: 'ast, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { .delegation_fn_sigs .get(&def_id) .is_some_and(|sig| sig.has_self), - None => self - .r - .tcx - .fn_arg_names(def_id) - .first() - .is_some_and(|ident| ident.name == kw::SelfLower), + None => { + self.r.tcx.fn_arg_names(def_id).first().is_some_and(|&ident| { + matches!(ident, Some(Ident { name: kw::SelfLower, .. })) + }) + } }; if has_self { return Some(AssocSuggestion::MethodWithSelf { called }); diff --git a/compiler/rustc_session/src/config.rs b/compiler/rustc_session/src/config.rs index 701d06e4fd403..43b78423c727f 100644 --- a/compiler/rustc_session/src/config.rs +++ b/compiler/rustc_session/src/config.rs @@ -2082,6 +2082,12 @@ fn emit_unknown_print_request_help(early_dcx: &EarlyDiagCtxt, req: &str) -> ! { let mut diag = early_dcx.early_struct_fatal(format!("unknown print request: `{req}`")); #[allow(rustc::diagnostic_outside_of_impl)] diag.help(format!("valid print requests are: {prints}")); + + if req == "lints" { + diag.help(format!("use `-Whelp` to print a list of lints")); + } + + diag.help(format!("for more information, see the rustc book: https://doc.rust-lang.org/rustc/command-line-arguments.html#--print-print-compiler-information")); diag.emit() } diff --git a/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs b/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs index 393d175ea4cd0..dc8022b95c313 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs @@ -1992,13 +1992,12 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { .iter() .enumerate() .map(|(i, ident)| { - if ident.name.is_empty() - || ident.name == kw::Underscore - || ident.name == kw::SelfLower + if let Some(ident) = ident + && !matches!(ident, Ident { name: kw::Underscore | kw::SelfLower, .. }) { - format!("arg{i}") - } else { format!("{ident}") + } else { + format!("arg{i}") } }) .collect(); diff --git a/compiler/rustc_type_ir/src/macros.rs b/compiler/rustc_type_ir/src/macros.rs index fab1a11304d57..c8c293121ca0a 100644 --- a/compiler/rustc_type_ir/src/macros.rs +++ b/compiler/rustc_type_ir/src/macros.rs @@ -1,10 +1,11 @@ /// Used for types that are `Copy` and which **do not care arena /// allocated data** (i.e., don't need to be folded). +#[macro_export] macro_rules! TrivialTypeTraversalImpls { ($($ty:ty,)+) => { $( - impl $crate::fold::TypeFoldable for $ty { - fn try_fold_with>( + impl $crate::TypeFoldable for $ty { + fn try_fold_with>( self, _: &mut F, ) -> ::std::result::Result { @@ -12,7 +13,7 @@ macro_rules! TrivialTypeTraversalImpls { } #[inline] - fn fold_with>( + fn fold_with>( self, _: &mut F, ) -> Self { @@ -20,14 +21,14 @@ macro_rules! TrivialTypeTraversalImpls { } } - impl $crate::visit::TypeVisitable for $ty { + impl $crate::TypeVisitable for $ty { #[inline] - fn visit_with>( + fn visit_with>( &self, _: &mut F) -> F::Result { - ::output() + ::output() } } )+ diff --git a/src/doc/rustc-dev-guide/src/notification-groups/about.md b/src/doc/rustc-dev-guide/src/notification-groups/about.md index 74629aa08acec..af305f0103ae8 100644 --- a/src/doc/rustc-dev-guide/src/notification-groups/about.md +++ b/src/doc/rustc-dev-guide/src/notification-groups/about.md @@ -23,7 +23,7 @@ Here's the list of the notification groups: - [ARM](./arm.md) - [Cleanup Crew](./cleanup-crew.md) - [Emscripten](./emscripten.md) -- [LLVM](./llvm.md) +- [LLVM Icebreakers](./llvm.md) - [RISC-V](./risc-v.md) - [WASI](./wasi.md) - [WebAssembly](./wasm.md) @@ -83,7 +83,7 @@ group. For example: @rustbot ping arm @rustbot ping cleanup-crew @rustbot ping emscripten -@rustbot ping llvm +@rustbot ping icebreakers-llvm @rustbot ping risc-v @rustbot ping wasi @rustbot ping wasm diff --git a/src/doc/rustc-dev-guide/src/notification-groups/llvm.md b/src/doc/rustc-dev-guide/src/notification-groups/llvm.md index 2eff63713a9c9..9d0087285438d 100644 --- a/src/doc/rustc-dev-guide/src/notification-groups/llvm.md +++ b/src/doc/rustc-dev-guide/src/notification-groups/llvm.md @@ -1,13 +1,16 @@ -# LLVM Notification group +# LLVM Icebreakers Notification group **Github Label:** [A-LLVM]
-**Ping command:** `@rustbot ping llvm` +**Ping command:** `@rustbot ping icebreakers-llvm` [A-LLVM]: https://github.com/rust-lang/rust/labels/A-LLVM -The "LLVM Notification Group" are focused on bugs that center around LLVM. -These bugs often arise because of LLVM optimizations gone awry, or as -the result of an LLVM upgrade. The goal here is: +*Note*: this notification group is *not* the same as the LLVM working group +(WG-llvm). + +The "LLVM Icebreakers Notification Group" are focused on bugs that center around +LLVM. These bugs often arise because of LLVM optimizations gone awry, or as the +result of an LLVM upgrade. The goal here is: - to determine whether the bug is a result of us generating invalid LLVM IR, or LLVM misoptimizing; diff --git a/src/librustdoc/clean/mod.rs b/src/librustdoc/clean/mod.rs index 4ecf702d7b6ef..de6dc088176ff 100644 --- a/src/librustdoc/clean/mod.rs +++ b/src/librustdoc/clean/mod.rs @@ -1088,7 +1088,7 @@ fn clean_fn_decl_legacy_const_generics(func: &mut Function, attrs: &[hir::Attrib enum FunctionArgs<'tcx> { Body(hir::BodyId), - Names(&'tcx [Ident]), + Names(&'tcx [Option]), } fn clean_function<'tcx>( @@ -1117,13 +1117,15 @@ fn clean_function<'tcx>( fn clean_args_from_types_and_names<'tcx>( cx: &mut DocContext<'tcx>, types: &[hir::Ty<'tcx>], - names: &[Ident], + names: &[Option], ) -> Arguments { - fn nonempty_name(ident: &Ident) -> Option { - if ident.name == kw::Underscore || ident.name == kw::Empty { - None - } else { + fn nonempty_name(ident: &Option) -> Option { + if let Some(ident) = ident + && ident.name != kw::Underscore + { Some(ident.name) + } else { + None } } @@ -1216,11 +1218,11 @@ fn clean_poly_fn_sig<'tcx>( .iter() .map(|t| Argument { type_: clean_middle_ty(t.map_bound(|t| *t), cx, None, None), - name: names - .next() - .map(|i| i.name) - .filter(|i| !i.is_empty()) - .unwrap_or(kw::Underscore), + name: if let Some(Some(ident)) = names.next() { + ident.name + } else { + kw::Underscore + }, is_const: false, }) .collect(), diff --git a/src/tools/clippy/clippy_lints/src/functions/renamed_function_params.rs b/src/tools/clippy/clippy_lints/src/functions/renamed_function_params.rs index 5ad83f886e2ec..041f6228fba2d 100644 --- a/src/tools/clippy/clippy_lints/src/functions/renamed_function_params.rs +++ b/src/tools/clippy/clippy_lints/src/functions/renamed_function_params.rs @@ -5,7 +5,7 @@ use rustc_hir::hir_id::OwnerId; use rustc_hir::{Impl, ImplItem, ImplItemKind, ImplItemRef, ItemKind, Node, TraitRef}; use rustc_lint::LateContext; use rustc_span::Span; -use rustc_span::symbol::{Ident, Symbol, kw}; +use rustc_span::symbol::{Ident, kw}; use super::RENAMED_FUNCTION_PARAMS; @@ -51,22 +51,33 @@ struct RenamedFnArgs(Vec<(Span, String)>); impl RenamedFnArgs { /// Comparing between an iterator of default names and one with current names, /// then collect the ones that got renamed. - fn new(default_names: &mut I, current_names: &mut T) -> Self + fn new(default_idents: &mut I1, current_idents: &mut I2) -> Self where - I: Iterator, - T: Iterator, + I1: Iterator>, + I2: Iterator>, { let mut renamed: Vec<(Span, String)> = vec![]; - debug_assert!(default_names.size_hint() == current_names.size_hint()); - while let (Some(def_name), Some(cur_name)) = (default_names.next(), current_names.next()) { - let current_name = cur_name.name; - let default_name = def_name.name; - if is_unused_or_empty_symbol(current_name) || is_unused_or_empty_symbol(default_name) { - continue; - } - if current_name != default_name { - renamed.push((cur_name.span, default_name.to_string())); + debug_assert!(default_idents.size_hint() == current_idents.size_hint()); + while let (Some(default_ident), Some(current_ident)) = + (default_idents.next(), current_idents.next()) + { + let has_name_to_check = |ident: Option| { + if let Some(ident) = ident + && ident.name != kw::Underscore + && !ident.name.as_str().starts_with('_') + { + Some(ident) + } else { + None + } + }; + + if let Some(default_ident) = has_name_to_check(default_ident) + && let Some(current_ident) = has_name_to_check(current_ident) + && default_ident.name != current_ident.name + { + renamed.push((current_ident.span, default_ident.to_string())); } } @@ -83,14 +94,6 @@ impl RenamedFnArgs { } } -fn is_unused_or_empty_symbol(symbol: Symbol) -> bool { - // FIXME: `body_param_names` currently returning empty symbols for `wild` as well, - // so we need to check if the symbol is empty first. - // Therefore the check of whether it's equal to [`kw::Underscore`] has no use for now, - // but it would be nice to keep it here just to be future-proof. - symbol.is_empty() || symbol == kw::Underscore || symbol.as_str().starts_with('_') -} - /// Get the [`trait_item_def_id`](ImplItemRef::trait_item_def_id) of a relevant impl item. fn trait_item_def_id_of_impl(items: &[ImplItemRef], target: OwnerId) -> Option { items.iter().find_map(|item| { diff --git a/src/tools/clippy/clippy_lints/src/lifetimes.rs b/src/tools/clippy/clippy_lints/src/lifetimes.rs index 3dd2de1fafc72..8d47c756fc53c 100644 --- a/src/tools/clippy/clippy_lints/src/lifetimes.rs +++ b/src/tools/clippy/clippy_lints/src/lifetimes.rs @@ -189,7 +189,7 @@ fn check_fn_inner<'tcx>( cx: &LateContext<'tcx>, sig: &'tcx FnSig<'_>, body: Option, - trait_sig: Option<&[Ident]>, + trait_sig: Option<&[Option]>, generics: &'tcx Generics<'_>, span: Span, report_extra_lifetimes: bool, @@ -264,7 +264,7 @@ fn could_use_elision<'tcx>( cx: &LateContext<'tcx>, func: &'tcx FnDecl<'_>, body: Option, - trait_sig: Option<&[Ident]>, + trait_sig: Option<&[Option]>, named_generics: &'tcx [GenericParam<'_>], msrv: Msrv, ) -> Option<(Vec, Vec)> { @@ -310,7 +310,7 @@ fn could_use_elision<'tcx>( let body = cx.tcx.hir_body(body_id); let first_ident = body.params.first().and_then(|param| param.pat.simple_ident()); - if non_elidable_self_type(cx, func, first_ident, msrv) { + if non_elidable_self_type(cx, func, Some(first_ident), msrv) { return None; } @@ -384,8 +384,8 @@ fn allowed_lts_from(named_generics: &[GenericParam<'_>]) -> FxIndexSet(cx: &LateContext<'tcx>, func: &FnDecl<'tcx>, ident: Option, msrv: Msrv) -> bool { - if let Some(ident) = ident +fn non_elidable_self_type<'tcx>(cx: &LateContext<'tcx>, func: &FnDecl<'tcx>, ident: Option>, msrv: Msrv) -> bool { + if let Some(Some(ident)) = ident && ident.name == kw::SelfLower && !func.implicit_self.has_implicit_self() && let Some(self_ty) = func.inputs.first() diff --git a/src/tools/clippy/clippy_utils/src/ast_utils/mod.rs b/src/tools/clippy/clippy_utils/src/ast_utils/mod.rs index 707312a97f3bc..54261079fcad8 100644 --- a/src/tools/clippy/clippy_utils/src/ast_utils/mod.rs +++ b/src/tools/clippy/clippy_utils/src/ast_utils/mod.rs @@ -201,7 +201,8 @@ pub fn eq_expr(l: &Expr, r: &Expr) -> bool { (Loop(lt, ll, _), Loop(rt, rl, _)) => eq_label(ll.as_ref(), rl.as_ref()) && eq_block(lt, rt), (Block(lb, ll), Block(rb, rl)) => eq_label(ll.as_ref(), rl.as_ref()) && eq_block(lb, rb), (TryBlock(l), TryBlock(r)) => eq_block(l, r), - (Yield(l), Yield(r)) | (Ret(l), Ret(r)) => eq_expr_opt(l.as_ref(), r.as_ref()), + (Yield(l), Yield(r)) => eq_expr_opt(l.expr(), r.expr()) && l.same_kind(r), + (Ret(l), Ret(r)) => eq_expr_opt(l.as_ref(), r.as_ref()), (Break(ll, le), Break(rl, re)) => eq_label(ll.as_ref(), rl.as_ref()) && eq_expr_opt(le.as_ref(), re.as_ref()), (Continue(ll), Continue(rl)) => eq_label(ll.as_ref(), rl.as_ref()), (Assign(l1, l2, _), Assign(r1, r2, _)) | (Index(l1, l2, _), Index(r1, r2, _)) => { @@ -688,7 +689,7 @@ pub fn eq_generics(l: &Generics, r: &Generics) -> bool { pub fn eq_where_predicate(l: &WherePredicate, r: &WherePredicate) -> bool { use WherePredicateKind::*; - over(&l.attrs, &r.attrs, eq_attr) + over(&l.attrs, &r.attrs, eq_attr) && match (&l.kind, &r.kind) { (BoundPredicate(l), BoundPredicate(r)) => { over(&l.bound_generic_params, &r.bound_generic_params, |l, r| { diff --git a/src/tools/rustfmt/src/chains.rs b/src/tools/rustfmt/src/chains.rs index fd2ef9cb1db9d..034ecde068a98 100644 --- a/src/tools/rustfmt/src/chains.rs +++ b/src/tools/rustfmt/src/chains.rs @@ -192,6 +192,7 @@ enum ChainItemKind { StructField(symbol::Ident), TupleField(symbol::Ident, bool), Await, + Yield, Comment(String, CommentPosition), } @@ -203,6 +204,7 @@ impl ChainItemKind { | ChainItemKind::StructField(..) | ChainItemKind::TupleField(..) | ChainItemKind::Await + | ChainItemKind::Yield | ChainItemKind::Comment(..) => false, } } @@ -257,6 +259,10 @@ impl ChainItemKind { let span = mk_sp(nested.span.hi(), expr.span.hi()); (ChainItemKind::Await, span) } + ast::ExprKind::Yield(ast::YieldKind::Postfix(ref nested)) => { + let span = mk_sp(nested.span.hi(), expr.span.hi()); + (ChainItemKind::Yield, span) + } _ => { return ( ChainItemKind::Parent { @@ -306,6 +312,7 @@ impl Rewrite for ChainItem { rewrite_ident(context, ident) ), ChainItemKind::Await => ".await".to_owned(), + ChainItemKind::Yield => ".yield".to_owned(), ChainItemKind::Comment(ref comment, _) => { rewrite_comment(comment, false, shape, context.config)? } @@ -508,7 +515,8 @@ impl Chain { }), ast::ExprKind::Field(ref subexpr, _) | ast::ExprKind::Try(ref subexpr) - | ast::ExprKind::Await(ref subexpr, _) => Some(SubExpr { + | ast::ExprKind::Await(ref subexpr, _) + | ast::ExprKind::Yield(ast::YieldKind::Postfix(ref subexpr)) => Some(SubExpr { expr: Self::convert_try(subexpr, context), is_method_call_receiver: false, }), diff --git a/src/tools/rustfmt/src/expr.rs b/src/tools/rustfmt/src/expr.rs index eff2d2e3ff4a3..e866f13efc73e 100644 --- a/src/tools/rustfmt/src/expr.rs +++ b/src/tools/rustfmt/src/expr.rs @@ -221,7 +221,7 @@ pub(crate) fn format_expr( Ok(format!("break{id_str}")) } } - ast::ExprKind::Yield(ref opt_expr) => { + ast::ExprKind::Yield(ast::YieldKind::Prefix(ref opt_expr)) => { if let Some(ref expr) = *opt_expr { rewrite_unary_prefix(context, "yield ", &**expr, shape) } else { @@ -243,7 +243,8 @@ pub(crate) fn format_expr( ast::ExprKind::Try(..) | ast::ExprKind::Field(..) | ast::ExprKind::MethodCall(..) - | ast::ExprKind::Await(_, _) => rewrite_chain(expr, context, shape), + | ast::ExprKind::Await(_, _) + | ast::ExprKind::Yield(ast::YieldKind::Postfix(_)) => rewrite_chain(expr, context, shape), ast::ExprKind::MacCall(ref mac) => { rewrite_macro(mac, None, context, shape, MacroPosition::Expression).or_else(|_| { wrap_str( diff --git a/src/tools/rustfmt/src/utils.rs b/src/tools/rustfmt/src/utils.rs index fe716c186389f..fcd475b1784f5 100644 --- a/src/tools/rustfmt/src/utils.rs +++ b/src/tools/rustfmt/src/utils.rs @@ -4,7 +4,7 @@ use rustc_ast::ast::{ self, Attribute, MetaItem, MetaItemInner, MetaItemKind, NodeId, Path, Visibility, VisibilityKind, }; -use rustc_ast::ptr; +use rustc_ast::{YieldKind, ptr}; use rustc_ast_pretty::pprust; use rustc_span::{BytePos, LocalExpnId, Span, Symbol, SyntaxContext, sym, symbol}; use unicode_width::UnicodeWidthStr; @@ -485,7 +485,9 @@ pub(crate) fn is_block_expr(context: &RewriteContext<'_>, expr: &ast::Expr, repr | ast::ExprKind::Index(_, ref expr, _) | ast::ExprKind::Unary(_, ref expr) | ast::ExprKind::Try(ref expr) - | ast::ExprKind::Yield(Some(ref expr)) => is_block_expr(context, expr, repr), + | ast::ExprKind::Yield(YieldKind::Prefix(Some(ref expr))) => { + is_block_expr(context, expr, repr) + } ast::ExprKind::Closure(ref closure) => is_block_expr(context, &closure.body, repr), // This can only be a string lit ast::ExprKind::Lit(_) => { @@ -515,7 +517,7 @@ pub(crate) fn is_block_expr(context: &RewriteContext<'_>, expr: &ast::Expr, repr | ast::ExprKind::Tup(..) | ast::ExprKind::Use(..) | ast::ExprKind::Type(..) - | ast::ExprKind::Yield(None) + | ast::ExprKind::Yield(..) | ast::ExprKind::Underscore => false, } } diff --git a/src/tools/rustfmt/tests/target/postfix-yield.rs b/src/tools/rustfmt/tests/target/postfix-yield.rs new file mode 100644 index 0000000000000..8ee34ec431226 --- /dev/null +++ b/src/tools/rustfmt/tests/target/postfix-yield.rs @@ -0,0 +1,17 @@ +// This demonstrates a proposed alternate or additional option of having yield in postfix position. +//@ edition: 2024 + +#![feature(gen_blocks, coroutines, coroutine_trait, yield_expr)] + +use std::ops::{Coroutine, CoroutineState}; +use std::pin::pin; + +fn main() { + let mut coro = pin!( + #[coroutine] + |_: i32| { + let x = 1.yield; + (x + 2).await; + } + ); +} diff --git a/tests/crashes/132826.rs b/tests/crashes/132826.rs deleted file mode 100644 index 9889cecdac541..0000000000000 --- a/tests/crashes/132826.rs +++ /dev/null @@ -1,10 +0,0 @@ -//@ known-bug: #132826 -pub trait MyTrait { - type Item; -} - -impl MyTrait for Vec { - type Item = Vec; -} - -impl From> for as MyTrait>::Item {} diff --git a/tests/pretty/postfix-yield.rs b/tests/pretty/postfix-yield.rs new file mode 100644 index 0000000000000..f76e8142ae86c --- /dev/null +++ b/tests/pretty/postfix-yield.rs @@ -0,0 +1,15 @@ +// This demonstrates a proposed alternate or additional option of having yield in postfix position. +//@ edition: 2024 +//@ pp-exact + +#![feature(gen_blocks, coroutines, coroutine_trait, yield_expr)] + +use std::ops::{Coroutine, CoroutineState}; +use std::pin::pin; + +fn main() { + let mut gn = gen { yield 1; 2.yield; (1 + 2).yield; }; + + let mut coro = + pin!(#[coroutine] |_: i32| { let x = 1.yield; (x + 2).yield; }); +} diff --git a/tests/ui/coherence/orphan-check-error-reporting-ty-var.rs b/tests/ui/coherence/orphan-check-error-reporting-ty-var.rs new file mode 100644 index 0000000000000..99a8345335448 --- /dev/null +++ b/tests/ui/coherence/orphan-check-error-reporting-ty-var.rs @@ -0,0 +1,17 @@ +// Regression test for #132826. + +// Make sure we don't try to resolve the variable `K1` in the generics of the impl +// (which only has `K2`). + +pub trait MyTrait { + type Item; +} + +impl MyTrait for Vec { + type Item = Vec; +} + +impl From> for as MyTrait>::Item {} +//~^ ERROR only traits defined in the current crate can be implemented for arbitrary types + +fn main() {} diff --git a/tests/ui/coherence/orphan-check-error-reporting-ty-var.stderr b/tests/ui/coherence/orphan-check-error-reporting-ty-var.stderr new file mode 100644 index 0000000000000..f229f8b2e385e --- /dev/null +++ b/tests/ui/coherence/orphan-check-error-reporting-ty-var.stderr @@ -0,0 +1,16 @@ +error[E0117]: only traits defined in the current crate can be implemented for arbitrary types + --> $DIR/orphan-check-error-reporting-ty-var.rs:14:1 + | +LL | impl From> for as MyTrait>::Item {} + | ^^^^^^^^^-------------^^^^^-------------------------- + | | | + | | `Vec` is not defined in the current crate + | `Vec` is not defined in the current crate + | + = note: impl doesn't have any local type before any uncovered type parameters + = note: for more information see https://doc.rust-lang.org/reference/items/implementations.html#orphan-rules + = note: define and implement a trait or new type instead + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0117`. diff --git a/tests/ui/consts/miri_unleashed/extern-static.stderr b/tests/ui/consts/miri_unleashed/extern-static.stderr index 0979a5e4fb197..4dbabbe44a2bb 100644 --- a/tests/ui/consts/miri_unleashed/extern-static.stderr +++ b/tests/ui/consts/miri_unleashed/extern-static.stderr @@ -2,13 +2,13 @@ error[E0080]: could not evaluate static initializer --> $DIR/extern-static.rs:11:25 | LL | unsafe { let _val = DATA; } - | ^^^^ cannot access extern static (DefId(0:4 ~ extern_static[c41e]::{extern#0}::DATA)) + | ^^^^ cannot access extern static `DATA` error[E0080]: could not evaluate static initializer --> $DIR/extern-static.rs:16:14 | LL | unsafe { DATA = 0; } - | ^^^^^^^^ cannot access extern static (DefId(0:4 ~ extern_static[c41e]::{extern#0}::DATA)) + | ^^^^^^^^ cannot access extern static `DATA` error: aborting due to 2 previous errors diff --git a/tests/ui/consts/miri_unleashed/tls.stderr b/tests/ui/consts/miri_unleashed/tls.stderr index a00b7eb13128c..ef83654430318 100644 --- a/tests/ui/consts/miri_unleashed/tls.stderr +++ b/tests/ui/consts/miri_unleashed/tls.stderr @@ -2,13 +2,13 @@ error[E0080]: could not evaluate static initializer --> $DIR/tls.rs:11:25 | LL | unsafe { let _val = A; } - | ^ cannot access thread local static (DefId(0:4 ~ tls[ca29]::A)) + | ^ cannot access thread local static `A` error[E0080]: could not evaluate static initializer --> $DIR/tls.rs:20:26 | LL | unsafe { let _val = &A; } - | ^ cannot access thread local static (DefId(0:4 ~ tls[ca29]::A)) + | ^ cannot access thread local static `A` warning: skipping const checks | diff --git a/tests/ui/coroutine/postfix-yield.rs b/tests/ui/coroutine/postfix-yield.rs new file mode 100644 index 0000000000000..ff843138c8c2c --- /dev/null +++ b/tests/ui/coroutine/postfix-yield.rs @@ -0,0 +1,34 @@ +// This demonstrates a proposed alternate or additional option of having yield in postfix position. + +//@ run-pass +//@ edition: 2024 + +#![feature(gen_blocks, coroutines, coroutine_trait, yield_expr)] + +use std::ops::{Coroutine, CoroutineState}; +use std::pin::pin; + +fn main() { + // generators (i.e. yield doesn't return anything useful) + let mut gn = gen { + yield 1; + 2.yield; + }; + + assert_eq!(gn.next(), Some(1)); + assert_eq!(gn.next(), Some(2)); + assert_eq!(gn.next(), None); + + //coroutines (i.e. yield returns something useful) + let mut coro = pin!( + #[coroutine] + |_: i32| { + let x = 1.yield; + (x + 2).yield; + } + ); + + assert_eq!(coro.as_mut().resume(0), CoroutineState::Yielded(1)); + assert_eq!(coro.as_mut().resume(2), CoroutineState::Yielded(4)); + assert_eq!(coro.as_mut().resume(3), CoroutineState::Complete(())); +} diff --git a/tests/ui/extern/issue-28324.stderr b/tests/ui/extern/issue-28324.stderr index 1fccb34fdf37b..93eb6ff8174e9 100644 --- a/tests/ui/extern/issue-28324.stderr +++ b/tests/ui/extern/issue-28324.stderr @@ -2,7 +2,7 @@ error[E0080]: could not evaluate static initializer --> $DIR/issue-28324.rs:5:23 | LL | pub static BAZ: u32 = *&error_message_count; - | ^^^^^^^^^^^^^^^^^^^^^ cannot access extern static (DefId(0:4 ~ issue_28324[8ec4]::{extern#0}::error_message_count)) + | ^^^^^^^^^^^^^^^^^^^^^ cannot access extern static `error_message_count` error[E0133]: use of extern static is unsafe and requires unsafe function or block --> $DIR/issue-28324.rs:5:25 diff --git a/tests/ui/invalid-compile-flags/print.stderr b/tests/ui/invalid-compile-flags/print.stderr index df0c3977dc8f6..4ea06a06539af 100644 --- a/tests/ui/invalid-compile-flags/print.stderr +++ b/tests/ui/invalid-compile-flags/print.stderr @@ -1,4 +1,5 @@ error: unknown print request: `yyyy` | = help: valid print requests are: `all-target-specs-json`, `calling-conventions`, `cfg`, `check-cfg`, `code-models`, `crate-name`, `deployment-target`, `file-names`, `host-tuple`, `link-args`, `native-static-libs`, `relocation-models`, `split-debuginfo`, `stack-protector-strategies`, `sysroot`, `target-cpus`, `target-features`, `target-libdir`, `target-list`, `target-spec-json`, `tls-models` + = help: for more information, see the rustc book: https://doc.rust-lang.org/rustc/command-line-arguments.html#--print-print-compiler-information diff --git a/tests/ui/rustc-print-info-issue-138612.rs b/tests/ui/rustc-print-info-issue-138612.rs new file mode 100644 index 0000000000000..65b595635b158 --- /dev/null +++ b/tests/ui/rustc-print-info-issue-138612.rs @@ -0,0 +1,2 @@ +//@ check-fail +//@ compile-flags: /dev/null --print lints diff --git a/tests/ui/rustc-print-info-issue-138612.stderr b/tests/ui/rustc-print-info-issue-138612.stderr new file mode 100644 index 0000000000000..4f7ed8219521d --- /dev/null +++ b/tests/ui/rustc-print-info-issue-138612.stderr @@ -0,0 +1,6 @@ +error: unknown print request: `lints` + | + = help: valid print requests are: `all-target-specs-json`, `calling-conventions`, `cfg`, `check-cfg`, `code-models`, `crate-name`, `deployment-target`, `file-names`, `host-tuple`, `link-args`, `native-static-libs`, `relocation-models`, `split-debuginfo`, `stack-protector-strategies`, `sysroot`, `target-cpus`, `target-features`, `target-libdir`, `target-list`, `target-spec-json`, `tls-models` + = help: use `-Whelp` to print a list of lints + = help: for more information, see the rustc book: https://doc.rust-lang.org/rustc/command-line-arguments.html#--print-print-compiler-information + diff --git a/tests/ui/statics/issue-14227.stderr b/tests/ui/statics/issue-14227.stderr index 0aeb973bff301..3551821a3dadb 100644 --- a/tests/ui/statics/issue-14227.stderr +++ b/tests/ui/statics/issue-14227.stderr @@ -2,7 +2,7 @@ error[E0080]: could not evaluate static initializer --> $DIR/issue-14227.rs:4:21 | LL | static CRASH: u32 = symbol; - | ^^^^^^ cannot access extern static (DefId(0:4 ~ issue_14227[1133]::{extern#0}::symbol)) + | ^^^^^^ cannot access extern static `symbol` error[E0133]: use of extern static is unsafe and requires unsafe function or block --> $DIR/issue-14227.rs:4:21 diff --git a/triagebot.toml b/triagebot.toml index cd488a7cdf65c..53cdd8b585b4a 100644 --- a/triagebot.toml +++ b/triagebot.toml @@ -47,7 +47,6 @@ add_labels = ["S-waiting-on-review"] [glacier] [ping.icebreakers-llvm] -alias = ["llvm", "llvms"] message = """\ Hey LLVM ICE-breakers! This bug has been identified as a good "LLVM ICE-breaking candidate". In case it's useful, here are some