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| author | Matthias Krüger <matthias.krueger@famsik.de> | 2023-03-01 01:21:56 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-03-01 01:21:56 +0100 |
| commit | 1c3cc8bba5d12ef3d21fee46c0b02e7390b381a4 (patch) | |
| tree | 95d9d6fb1d488d5ade07ddc4eeb20ab25d2f4fb0 /compiler/rustc_parse/src/parser/expr.rs | |
| parent | 32d70241003247d77c3d48541fb5331873c6f931 (diff) | |
| parent | 031206bc1d16edcc963a1d0987ad37448a4cc019 (diff) | |
| download | rust-1c3cc8bba5d12ef3d21fee46c0b02e7390b381a4.tar.gz rust-1c3cc8bba5d12ef3d21fee46c0b02e7390b381a4.zip | |
Rollup merge of #108496 - nx2k3:issue-108495-dec, r=WaffleLapkin
fix #108495, postfix decrement and prefix decrement has no warning Fixes #108495
Diffstat (limited to 'compiler/rustc_parse/src/parser/expr.rs')
| -rw-r--r-- | compiler/rustc_parse/src/parser/expr.rs | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/compiler/rustc_parse/src/parser/expr.rs b/compiler/rustc_parse/src/parser/expr.rs index 33254d034c9..24d4c17f5d8 100644 --- a/compiler/rustc_parse/src/parser/expr.rs +++ b/compiler/rustc_parse/src/parser/expr.rs @@ -282,6 +282,18 @@ impl<'a> Parser<'a> { continue; } + if self.prev_token == token::BinOp(token::Minus) + && self.token == token::BinOp(token::Minus) + && self.prev_token.span.between(self.token.span).is_empty() + && !self.look_ahead(1, |tok| tok.can_begin_expr()) + { + let op_span = self.prev_token.span.to(self.token.span); + // Eat the second `-` + self.bump(); + lhs = self.recover_from_postfix_decrement(lhs, op_span, starts_stmt)?; + continue; + } + let op = op.node; // Special cases: if op == AssocOp::As { |