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perf(parser): get and check lookahead token (#4534)

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lucab 2024-07-29 16:45:39 +00:00
parent d914b14275
commit 0870ee1f9f
1 changed files with 2 additions and 2 deletions
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4
crates/oxc_parser/src/lexer/mod.rs
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@ -170,8 +170,8 @@ impl<'a> Lexer<'a> {
let n = n as usize;
debug_assert!(n > 0);
if self.lookahead.len() > n - 1 {
return self.lookahead[n - 1].token;
if let Some(lookahead) = self.lookahead.get(n - 1) {
return lookahead.token;
}
let position = self.source.position();