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| author | Jacob Pratt <jacob@jhpratt.dev> | 2025-08-10 15:43:55 -0400 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-08-10 15:43:55 -0400 |
| commit | 733568ac7d66ff07bb7e6ada6a447e7f020fb3a2 (patch) | |
| tree | a5435a415bfd6c6608a11ba1070909bb7406d85c | |
| parent | adf522cefb725ec14ed52d8304c6fb7f0f1f5041 (diff) | |
| parent | cf1a1b7b76a937afae997594d931b64956e74a4f (diff) | |
| download | rust-733568ac7d66ff07bb7e6ada6a447e7f020fb3a2.tar.gz rust-733568ac7d66ff07bb7e6ada6a447e7f020fb3a2.zip | |
Rollup merge of #145152 - xizheyin:detect-confusion-type, r=lqd
Use `eq_ignore_ascii_case` to avoid heap alloc in `detect_confuse_type` A small optimization has been made, using `to_ascii_lowercase()` instead of `to_lowercase().to_string()`. r? compiler
| -rw-r--r-- | compiler/rustc_errors/src/emitter.rs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_errors/src/emitter.rs b/compiler/rustc_errors/src/emitter.rs index 0c839f94f7f..97c47fa9b9a 100644 --- a/compiler/rustc_errors/src/emitter.rs +++ b/compiler/rustc_errors/src/emitter.rs @@ -3546,7 +3546,7 @@ pub fn detect_confusion_type(sm: &SourceMap, suggested: &str, sp: Span) -> Confu for (f, s) in iter::zip(found.chars(), suggested.chars()) { if f != s { - if f.to_lowercase().to_string() == s.to_lowercase().to_string() { + if f.eq_ignore_ascii_case(&s) { // Check for case differences (any character that differs only in case) if ascii_confusables.contains(&f) || ascii_confusables.contains(&s) { has_case_diff = true; |