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[pushed] c++: correct object scope handling

Message ID 20210915040516.957484-1-jason@redhat.com
State Committed
Commit ba9b07d0259b38a9eccd4eb0df327d3aaabad3c6
Headers show
Series [pushed] c++: correct object scope handling | expand

Commit Message

Jason Merrill Sept. 15, 2021, 4:05 a.m. UTC
The way cp_parser_lookup_name handles object scope (i.e. the scope on the
RHS of a . or -> expression) is a bit subtle: before the lookup it's in
parser->context->object type, and after the lookup it's in
parser->object_scope.  But a couple of places that elide lookups were
failing to do the same transform.

I'm not aware of this breaking anything currently.

Tested x86_64-pc-linux-gnu, applying to trunk.


	* parser.c (cp_parser_template_name): Move object type.
	(cp_parser_pre_parsed_nested_name_specifier): Likewise.
 gcc/cp/parser.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

base-commit: bd55fa102715c7442c050b193dadfdb5337e2377
prerequisite-patch-id: 6aead84b2823eea91fa3886a64c032aa4882cec3
diff mbox series


diff --git a/gcc/cp/parser.c b/gcc/cp/parser.c
index ab1dc81b997..7a0b6234350 100644
--- a/gcc/cp/parser.c
+++ b/gcc/cp/parser.c
@@ -18405,6 +18405,7 @@  cp_parser_template_name (cp_parser* parser,
 	      /* We're optimizing away the call to cp_parser_lookup_name, but
 		 we still need to do this.  */
+	      parser->object_scope = parser->context->object_type;
 	      parser->context->object_type = NULL_TREE;
 	      return identifier;
@@ -33575,7 +33576,8 @@  cp_parser_pre_parsed_nested_name_specifier (cp_parser *parser)
   /* Set the scope from the stored value.  */
   parser->scope = saved_checks_value (check_value);
   parser->qualifying_scope = check_value->qualifying_scope;
-  parser->object_scope = NULL_TREE;
+  parser->object_scope = parser->context->object_type;
+  parser->context->object_type = NULL_TREE;
 /* Consume tokens up through a non-nested END token.  Returns TRUE if we