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| 1 | +use std::backtrace::Backtrace; |
| 2 | +use std::borrow::Cow; |
| 3 | +use std::fmt; |
| 4 | +use std::num::ParseIntError; |
| 5 | +use std::path::{Path, PathBuf}; |
| 6 | +use std::process::ExitStatus; |
| 7 | + |
| 8 | +use rustc_ast as ast; |
| 9 | +use rustc_ast_pretty::pprust; |
| 10 | +use rustc_span::edition::Edition; |
| 11 | + |
| 12 | +use crate::{DiagArgValue, IntoDiagArg}; |
| 13 | + |
| 14 | +pub struct DiagArgFromDisplay<'a>(pub &'a dyn fmt::Display); |
| 15 | + |
| 16 | +impl IntoDiagArg for DiagArgFromDisplay<'_> { |
| 17 | + fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> DiagArgValue { |
| 18 | + self.0.to_string().into_diag_arg(path) |
| 19 | + } |
| 20 | +} |
| 21 | + |
| 22 | +impl<'a> From<&'a dyn fmt::Display> for DiagArgFromDisplay<'a> { |
| 23 | + fn from(t: &'a dyn fmt::Display) -> Self { |
| 24 | + DiagArgFromDisplay(t) |
| 25 | + } |
| 26 | +} |
| 27 | + |
| 28 | +impl<'a, T: fmt::Display> From<&'a T> for DiagArgFromDisplay<'a> { |
| 29 | + fn from(t: &'a T) -> Self { |
| 30 | + DiagArgFromDisplay(t) |
| 31 | + } |
| 32 | +} |
| 33 | + |
| 34 | +impl<'a, T: Clone + IntoDiagArg> IntoDiagArg for &'a T { |
| 35 | + fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> DiagArgValue { |
| 36 | + self.clone().into_diag_arg(path) |
| 37 | + } |
| 38 | +} |
| 39 | + |
| 40 | +#[macro_export] |
| 41 | +macro_rules! into_diag_arg_using_display { |
| 42 | + ($( $ty:ty ),+ $(,)?) => { |
| 43 | + $( |
| 44 | + impl $crate::IntoDiagArg for $ty { |
| 45 | + fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> $crate::DiagArgValue { |
| 46 | + self.to_string().into_diag_arg(path) |
| 47 | + } |
| 48 | + } |
| 49 | + )+ |
| 50 | + } |
| 51 | +} |
| 52 | + |
| 53 | +macro_rules! into_diag_arg_for_number { |
| 54 | + ($( $ty:ty ),+ $(,)?) => { |
| 55 | + $( |
| 56 | + impl $crate::IntoDiagArg for $ty { |
| 57 | + fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> $crate::DiagArgValue { |
| 58 | + // Convert to a string if it won't fit into `Number`. |
| 59 | + #[allow(irrefutable_let_patterns)] |
| 60 | + if let Ok(n) = TryInto::<i32>::try_into(self) { |
| 61 | + $crate::DiagArgValue::Number(n) |
| 62 | + } else { |
| 63 | + self.to_string().into_diag_arg(path) |
| 64 | + } |
| 65 | + } |
| 66 | + } |
| 67 | + )+ |
| 68 | + } |
| 69 | +} |
| 70 | + |
| 71 | +into_diag_arg_using_display!( |
| 72 | + ast::ParamKindOrd, |
| 73 | + std::io::Error, |
| 74 | + Box<dyn std::error::Error>, |
| 75 | + std::num::NonZero<u32>, |
| 76 | + Edition, |
| 77 | + rustc_span::Ident, |
| 78 | + rustc_span::MacroRulesNormalizedIdent, |
| 79 | + ParseIntError, |
| 80 | + ExitStatus, |
| 81 | +); |
| 82 | + |
| 83 | +into_diag_arg_for_number!(i8, u8, i16, u16, i32, u32, i64, u64, i128, u128, isize, usize); |
| 84 | + |
| 85 | +impl IntoDiagArg for bool { |
| 86 | + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { |
| 87 | + if self { |
| 88 | + DiagArgValue::Str(Cow::Borrowed("true")) |
| 89 | + } else { |
| 90 | + DiagArgValue::Str(Cow::Borrowed("false")) |
| 91 | + } |
| 92 | + } |
| 93 | +} |
| 94 | + |
| 95 | +impl IntoDiagArg for char { |
| 96 | + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { |
| 97 | + DiagArgValue::Str(Cow::Owned(format!("{self:?}"))) |
| 98 | + } |
| 99 | +} |
| 100 | + |
| 101 | +impl IntoDiagArg for Vec<char> { |
| 102 | + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { |
| 103 | + DiagArgValue::StrListSepByAnd( |
| 104 | + self.into_iter().map(|c| Cow::Owned(format!("{c:?}"))).collect(), |
| 105 | + ) |
| 106 | + } |
| 107 | +} |
| 108 | + |
| 109 | +impl IntoDiagArg for rustc_span::Symbol { |
| 110 | + fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> DiagArgValue { |
| 111 | + self.to_ident_string().into_diag_arg(path) |
| 112 | + } |
| 113 | +} |
| 114 | + |
| 115 | +impl<'a> IntoDiagArg for &'a str { |
| 116 | + fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> DiagArgValue { |
| 117 | + self.to_string().into_diag_arg(path) |
| 118 | + } |
| 119 | +} |
| 120 | + |
| 121 | +impl IntoDiagArg for String { |
| 122 | + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { |
| 123 | + DiagArgValue::Str(Cow::Owned(self)) |
| 124 | + } |
| 125 | +} |
| 126 | + |
| 127 | +impl<'a> IntoDiagArg for Cow<'a, str> { |
| 128 | + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { |
| 129 | + DiagArgValue::Str(Cow::Owned(self.into_owned())) |
| 130 | + } |
| 131 | +} |
| 132 | + |
| 133 | +impl<'a> IntoDiagArg for &'a Path { |
| 134 | + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { |
| 135 | + DiagArgValue::Str(Cow::Owned(self.display().to_string())) |
| 136 | + } |
| 137 | +} |
| 138 | + |
| 139 | +impl IntoDiagArg for PathBuf { |
| 140 | + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { |
| 141 | + DiagArgValue::Str(Cow::Owned(self.display().to_string())) |
| 142 | + } |
| 143 | +} |
| 144 | + |
| 145 | +impl IntoDiagArg for ast::Expr { |
| 146 | + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { |
| 147 | + DiagArgValue::Str(Cow::Owned(pprust::expr_to_string(&self))) |
| 148 | + } |
| 149 | +} |
| 150 | + |
| 151 | +impl IntoDiagArg for ast::Path { |
| 152 | + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { |
| 153 | + DiagArgValue::Str(Cow::Owned(pprust::path_to_string(&self))) |
| 154 | + } |
| 155 | +} |
| 156 | + |
| 157 | +impl IntoDiagArg for ast::token::Token { |
| 158 | + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { |
| 159 | + DiagArgValue::Str(pprust::token_to_string(&self)) |
| 160 | + } |
| 161 | +} |
| 162 | + |
| 163 | +impl IntoDiagArg for ast::token::TokenKind { |
| 164 | + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { |
| 165 | + DiagArgValue::Str(pprust::token_kind_to_string(&self)) |
| 166 | + } |
| 167 | +} |
| 168 | + |
| 169 | +impl IntoDiagArg for std::ffi::CString { |
| 170 | + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { |
| 171 | + DiagArgValue::Str(Cow::Owned(self.to_string_lossy().into_owned())) |
| 172 | + } |
| 173 | +} |
| 174 | + |
| 175 | +impl IntoDiagArg for rustc_data_structures::small_c_str::SmallCStr { |
| 176 | + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { |
| 177 | + DiagArgValue::Str(Cow::Owned(self.to_string_lossy().into_owned())) |
| 178 | + } |
| 179 | +} |
| 180 | + |
| 181 | +impl IntoDiagArg for ast::Visibility { |
| 182 | + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { |
| 183 | + let s = pprust::vis_to_string(&self); |
| 184 | + let s = s.trim_end().to_string(); |
| 185 | + DiagArgValue::Str(Cow::Owned(s)) |
| 186 | + } |
| 187 | +} |
| 188 | + |
| 189 | +impl IntoDiagArg for Backtrace { |
| 190 | + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { |
| 191 | + DiagArgValue::Str(Cow::from(self.to_string())) |
| 192 | + } |
| 193 | +} |
| 194 | + |
| 195 | +impl IntoDiagArg for ast::util::parser::ExprPrecedence { |
| 196 | + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { |
| 197 | + DiagArgValue::Number(self as i32) |
| 198 | + } |
| 199 | +} |
| 200 | + |
| 201 | +impl IntoDiagArg for ast::FloatTy { |
| 202 | + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { |
| 203 | + DiagArgValue::Str(Cow::Borrowed(self.name_str())) |
| 204 | + } |
| 205 | +} |
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