From bd07165690481aaa4c99b9c3ab6e20fbebae8f54 Mon Sep 17 00:00:00 2001 From: Vadim Petrochenkov Date: Sun, 24 Jan 2021 16:41:12 +0300 Subject: [PATCH] parser: Collect tokens for values in key-value attributes --- compiler/rustc_parse/src/parser/mod.rs | 8 ++------ src/test/ui/ast-json/ast-json-noexpand-output.stdout | 2 +- src/test/ui/ast-json/ast-json-output.stdout | 2 +- src/test/ui/attributes/key-value-non-ascii.rs | 4 ++++ src/test/ui/attributes/key-value-non-ascii.stderr | 8 ++++++++ 5 files changed, 16 insertions(+), 8 deletions(-) create mode 100644 src/test/ui/attributes/key-value-non-ascii.rs create mode 100644 src/test/ui/attributes/key-value-non-ascii.stderr diff --git a/compiler/rustc_parse/src/parser/mod.rs b/compiler/rustc_parse/src/parser/mod.rs index f11c6591de909..c575c8219641c 100644 --- a/compiler/rustc_parse/src/parser/mod.rs +++ b/compiler/rustc_parse/src/parser/mod.rs @@ -980,12 +980,8 @@ impl<'a> Parser<'a> { } } - // The value here is never passed to macros as tokens by itself (not as a part - // of the whole attribute), so we don't collect tokens here. If this changes, - // then token will need to be collected. One catch here is that we are using - // a nonterminal for keeping the expression, but this nonterminal should not - // be wrapped into a group when converting to token stream. - let expr = self.parse_expr()?; + // Collect tokens because they are used during lowering to HIR. + let expr = self.collect_tokens(|this| this.parse_expr())?; let span = expr.span; match &expr.kind { diff --git a/src/test/ui/ast-json/ast-json-noexpand-output.stdout b/src/test/ui/ast-json/ast-json-noexpand-output.stdout index 9c29a5f2337cd..02342af8dc53e 100644 --- a/src/test/ui/ast-json/ast-json-noexpand-output.stdout +++ b/src/test/ui/ast-json/ast-json-noexpand-output.stdout @@ -1 +1 @@ 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Use a \xHH escape for a non-ASCII byte + --> $DIR/key-value-non-ascii.rs:3:19 + | +LL | #[rustc_dummy = b"ffi.rs"] + | ^ + +error: aborting due to previous error +