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Auto merge of #121142 - GuillaumeGomez:rollup-5qmksjw, r=GuillaumeGomez

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Rollup of 8 pull requests

Successful merges:

 - #120449 (Document requirements for unsized {Rc,Arc}::from_raw)
 - #120505 (Fix BTreeMap's Cursor::remove_{next,prev})
 - #120672 (std::thread update freebsd stack guard handling.)
 - #121088 (Implicitly enable evex512 if avx512 is enabled)
 - #121104 (Ignore unsized types when trying to determine the size of the original type)
 - #121107 (Fix msg for verbose suggestions with confusable capitalization)
 - #121113 (Continue compilation even if inherent impl checks fail)
 - #121120 (Add `ErrorGuaranteed` to `ast::LitKind::Err`, `token::LitKind::Err`.)

r? `@ghost`
`@rustbot` modify labels: rollup
This commit is contained in:
bors 2024-02-15 17:00:55 +00:00
commit cbddf31863
58 changed files with 630 additions and 277 deletions
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58
compiler/rustc_session/src/errors.rs
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@ -3,7 +3,8 @@ use std::num::NonZeroU32;
use rustc_ast::token;
use rustc_ast::util::literal::LitError;
use rustc_errors::{
codes::*, DiagCtxt, DiagnosticBuilder, DiagnosticMessage, IntoDiagnostic, Level, MultiSpan,
codes::*, DiagCtxt, DiagnosticBuilder, DiagnosticMessage, ErrorGuaranteed, IntoDiagnostic,
Level, MultiSpan,
};
use rustc_macros::Diagnostic;
use rustc_span::{Span, Symbol};
@ -344,7 +345,12 @@ pub(crate) struct BinaryFloatLiteralNotSupported {
pub span: Span,
}
pub fn report_lit_error(sess: &ParseSess, err: LitError, lit: token::Lit, span: Span) {
pub fn report_lit_error(
sess: &ParseSess,
err: LitError,
lit: token::Lit,
span: Span,
) -> ErrorGuaranteed {
// Checks if `s` looks like i32 or u1234 etc.
fn looks_like_width_suffix(first_chars: &[char], s: &str) -> bool {
s.len() > 1 && s.starts_with(first_chars) && s[1..].chars().all(|c| c.is_ascii_digit())
@ -372,47 +378,37 @@ pub fn report_lit_error(sess: &ParseSess, err: LitError, lit: token::Lit, span:
valid.then(|| format!("0{}{}", base_char.to_ascii_lowercase(), &suffix[1..]))
}
let token::Lit { kind, symbol, suffix, .. } = lit;
let dcx = &sess.dcx;
match err {
// `LexerError` is an error, but it was already reported
// by lexer, so here we don't report it the second time.
LitError::LexerError => {}
LitError::InvalidSuffix => {
if let Some(suffix) = suffix {
dcx.emit_err(InvalidLiteralSuffix { span, kind: kind.descr(), suffix });
}
LitError::InvalidSuffix(suffix) => {
dcx.emit_err(InvalidLiteralSuffix { span, kind: lit.kind.descr(), suffix })
}
LitError::InvalidIntSuffix => {
let suf = suffix.expect("suffix error with no suffix");
let suf = suf.as_str();
LitError::InvalidIntSuffix(suffix) => {
let suf = suffix.as_str();
if looks_like_width_suffix(&['i', 'u'], suf) {
// If it looks like a width, try to be helpful.
dcx.emit_err(InvalidIntLiteralWidth { span, width: suf[1..].into() });
} else if let Some(fixed) = fix_base_capitalisation(symbol.as_str(), suf) {
dcx.emit_err(InvalidNumLiteralBasePrefix { span, fixed });
dcx.emit_err(InvalidIntLiteralWidth { span, width: suf[1..].into() })
} else if let Some(fixed) = fix_base_capitalisation(lit.symbol.as_str(), suf) {
dcx.emit_err(InvalidNumLiteralBasePrefix { span, fixed })
} else {
dcx.emit_err(InvalidNumLiteralSuffix { span, suffix: suf.to_string() });
dcx.emit_err(InvalidNumLiteralSuffix { span, suffix: suf.to_string() })
}
}
LitError::InvalidFloatSuffix => {
let suf = suffix.expect("suffix error with no suffix");
let suf = suf.as_str();
LitError::InvalidFloatSuffix(suffix) => {
let suf = suffix.as_str();
if looks_like_width_suffix(&['f'], suf) {
// If it looks like a width, try to be helpful.
dcx.emit_err(InvalidFloatLiteralWidth { span, width: suf[1..].to_string() });
dcx.emit_err(InvalidFloatLiteralWidth { span, width: suf[1..].to_string() })
} else {
dcx.emit_err(InvalidFloatLiteralSuffix { span, suffix: suf.to_string() });
dcx.emit_err(InvalidFloatLiteralSuffix { span, suffix: suf.to_string() })
}
}
LitError::NonDecimalFloat(base) => {
match base {
16 => dcx.emit_err(HexadecimalFloatLiteralNotSupported { span }),
8 => dcx.emit_err(OctalFloatLiteralNotSupported { span }),
2 => dcx.emit_err(BinaryFloatLiteralNotSupported { span }),
_ => unreachable!(),
};
}
LitError::NonDecimalFloat(base) => match base {
16 => dcx.emit_err(HexadecimalFloatLiteralNotSupported { span }),
8 => dcx.emit_err(OctalFloatLiteralNotSupported { span }),
2 => dcx.emit_err(BinaryFloatLiteralNotSupported { span }),
_ => unreachable!(),
},
LitError::IntTooLarge(base) => {
let max = u128::MAX;
let limit = match base {
@ -421,7 +417,7 @@ pub fn report_lit_error(sess: &ParseSess, err: LitError, lit: token::Lit, span:
16 => format!("{max:#x}"),
_ => format!("{max}"),
};
dcx.emit_err(IntLiteralTooLarge { span, limit });
dcx.emit_err(IntLiteralTooLarge { span, limit })
}
}
}