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perf(linter): id-length: check if ident is ASCII before segmenting #14767

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Merged
graphite-app merged 1 commit into from
Oct 20, 2025
Merged

perf(linter): id-length: check if ident is ASCII before segmenting #14767

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13 changes: 9 additions & 4 deletions crates/oxc_linter/src/rules/eslint/id_length.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -216,10 +216,15 @@ impl IdLength {
return;
}

let segmenter = GraphemeClusterSegmenter::new();
let graphemes_length = segmenter.segment_str(&ident_name).count() - 1;
let is_too_long = self.is_too_long(graphemes_length);
let is_too_short = self.is_too_short(graphemes_length);
// If identifier is all ASCII, then we can use .len() instead of counting graphemes
let (is_too_long, is_too_short) = if ident_name.is_ascii() {
let ident_length = ident_name.len();
(self.is_too_long(ident_length), self.is_too_short(ident_length))
} else {
let segmenter = GraphemeClusterSegmenter::new();
let graphemes_length = segmenter.segment_str(&ident_name).count() - 1;
(self.is_too_long(graphemes_length), self.is_too_short(graphemes_length))
};

if !is_too_long && !is_too_short {
return;
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