Avoid parsing const unsafe/extern functions as async

gcc/rust/ChangeLog: * parse/rust-parse-impl.h (Parser::parse_vis_item): Call parse_function instead of parse_async_item when finding UNSAFE or EXTERN_KW during lookahead. gcc/testsuite/ChangeLog: * rust/compile/func-const-unsafe.rs: New test. Signed-off-by: Owen Avery <[email protected]>
CohenArthur · Mar 27, 2024 · 01092b8 · 01092b8
1 parent fd621e1
commit 01092b8
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diff --git a/gcc/rust/parse/rust-parse-impl.h b/gcc/rust/parse/rust-parse-impl.h
@@ -1382,10 +1382,10 @@ Parser<ManagedTokenSource>::parse_vis_item (AST::AttrVec outer_attrs)
 	case IDENTIFIER:
 	case UNDERSCORE:
 	  return parse_const_item (std::move (vis), std::move (outer_attrs));
-	case UNSAFE:
-	case EXTERN_KW:
 	case ASYNC:
 	  return parse_async_item (std::move (vis), std::move (outer_attrs));
+	case UNSAFE:
+	case EXTERN_KW:
 	case FN_KW:
 	  return parse_function (std::move (vis), std::move (outer_attrs));
 	default:

diff --git a/gcc/testsuite/rust/compile/func-const-unsafe.rs b/gcc/testsuite/rust/compile/func-const-unsafe.rs
@@ -0,0 +1 @@
+pub const unsafe fn foo() {}