bjoernager/rust
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dedup for duplicate suggestions

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This commit is contained in:
bohan 2023-11-21 02:42:09 +08:00
parent c9808f8702
commit 199098b71b
3 changed files with 36 additions and 4 deletions
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9
compiler/rustc_errors/src/diagnostic.rs
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@ -622,17 +622,18 @@ impl Diagnostic {
pub fn multipart_suggestion_with_style(
&mut self,
msg: impl Into<SubdiagnosticMessage>,
suggestion: Vec<(Span, String)>,
mut suggestion: Vec<(Span, String)>,
applicability: Applicability,
style: SuggestionStyle,
) -> &mut Self {
let mut parts = suggestion
suggestion.sort_unstable();
suggestion.dedup();
let parts = suggestion
.into_iter()
.map(|(span, snippet)| SubstitutionPart { snippet, span })
.collect::<Vec<_>>();
parts.sort_unstable_by_key(|part| part.span);
assert!(!parts.is_empty());
debug_assert_eq!(
parts.iter().find(|part| part.span.is_empty() && part.snippet.is_empty()),