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| author | Matthias Krüger <matthias.krueger@famsik.de> | 2023-01-14 18:45:28 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-01-14 18:45:28 +0100 |
| commit | 9db8e6d5e9d6a4e87105ee556c54a4d30d1b261b (patch) | |
| tree | 4b7b368f79d8eb348fc91f5cbcf0e56717a4e83c /compiler/rustc_parse/src/parser/expr.rs | |
| parent | 14fbc214662c32be928479205154438ba58841ab (diff) | |
| parent | ea13023b367d56ac3a8fcb72c9bbe636cf9ae1e7 (diff) | |
| download | rust-9db8e6d5e9d6a4e87105ee556c54a4d30d1b261b.tar.gz rust-9db8e6d5e9d6a4e87105ee556c54a4d30d1b261b.zip | |
Rollup merge of #106849 - WaffleLapkin:unvec, r=Nilstrieb
Allocate one less vec while parsing arrays Probably does not matter, but imo a little bit nicer.
Diffstat (limited to 'compiler/rustc_parse/src/parser/expr.rs')
| -rw-r--r-- | compiler/rustc_parse/src/parser/expr.rs | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/compiler/rustc_parse/src/parser/expr.rs b/compiler/rustc_parse/src/parser/expr.rs index 645f8633941..d58afcd4c9f 100644 --- a/compiler/rustc_parse/src/parser/expr.rs +++ b/compiler/rustc_parse/src/parser/expr.rs @@ -1475,9 +1475,8 @@ impl<'a> Parser<'a> { } else if self.eat(&token::Comma) { // Vector with two or more elements. let sep = SeqSep::trailing_allowed(token::Comma); - let (remaining_exprs, _) = self.parse_seq_to_end(close, sep, |p| p.parse_expr())?; - let mut exprs = vec![first_expr]; - exprs.extend(remaining_exprs); + let (mut exprs, _) = self.parse_seq_to_end(close, sep, |p| p.parse_expr())?; + exprs.insert(0, first_expr); ExprKind::Array(exprs) } else { // Vector with one element |