PR c++/18368

	* parser.c (cp_parser_check_for_definition_in_return_type): Take
	the defined type as a parameter, and inform the user about the
	possibility of a missing semicolon.
	(cp_parser_explicit_instantiation): Adjust call to
	cp_parser_check_for_definition_in_return_type.
	(cp_parser_init_declarator): Likewise.
	(cp_parser_member_declaration): Likewise.

	PR c++/18674
	* cp-tree.def (TYPENAME_TYPE): Remove discussion of implicit
	typename from comments.
	* cp-tree.h (TYPENAME_IS_ENUM_P): New macro.
	(TYPENAME_IS_CLASS_P): Likewise.
	(make_typename_type): Change prototype.
	* decl.c (struct_typename_info): New type.
	(typename_compare): Expect the second argument to be a
	typename_info, not a tree.
	(build_typename_type): Add tag_type parameter.  Do not create a
	new type until necessary.
	(make_typename_type): Add tag_type parameter.
	* error.c (TYPENAME_TYPE): Print tags other than "typename" if
	appropriate.
	* friend.c (make_friend_class): Adjust call to make_typename_type.
	* parser.c (cp_parser_make_typename_type): Likewise.
	(cp_parser_primary_expression): Adjust call to
	cp_parser_lookup_name.
	(cp_parser_unqualified_id): Adjust calls to cp_parser_class_name.
	(cp_parser_class_or_namespace_name): Likewise.
	(cp_parser_postfix_expression): Adjust calls to
	make_typename_type.
	(cp_parser_mem_initializer_id): Adjust calls to
	cp_parser_class_name.
	(cp_parser_type_parameter): Adjust calls to cp_parser_lookup_name.
	(cp_parser_template_name): Likewise.
	(cp_parser_template_argument): Likewise.
	(cp_parser_type_name): Adjust call to cp_parser_class_name.
	(cp_parser_elaborated_type_specifier): Adjust calls to
	make_typename_type and cp_parser_lookup_name.
	(cp_parser_namespace_name): Likewise.
	(cp_parser_class_name): Replace type_p parameter with tag_type.
	Adjust calls to make_typename_type and cp_parser_lookup_name.
	(cp_parser_class_head): Adjust calls to cp_parser_class_name.
	(cp_parser_base_specifier): Likewise.
	(cp_parser_lookup_name): Replace is_type parameter with tag_type.
	Adjust calls to make_typename_type and lookup_qualified_name.
	(cp_parser_lookup_name_simple): Adjust call to
	cp_parser_lookup_name.
	(cp_parser_constructor_declarator_p): Adjust call to
	cp_parser_class_name.
	* pt.c (convert_template_argument): Adjust all to
	make_typename_type.
	(tsubst_decl): Do not pre-substitute the type of the declaration.
	(tsubst): Hand off declarations more quickly.  Adjust call to
	make_typename_type.

	PR c++/18512
	* parser.c (cp_parser_postfix_dot_deref_expression): Robustify.

	PR c++/18674
	* g++.old-deja/g++.brendan/crash16.C: Adjust error messages.
	* g++.old-deja/g++.law/ctors5.C: Likewise.
	* g++.old-deja/g++.other/crash25.C: Likewise.

	PR c++/18674
	* g++.dg/template/error16.C: New test.

	PR c++/18512
	* g++.dg/template/crash29.C: New test.


git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@91483 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 1 insertions, 3 deletions

diff --git a/gcc/cp/cp-tree.def b/gcc/cp/cp-tree.def
index 2335e2f7043..a01ed7666f3 100644
--- a/gcc/cp/cp-tree.def
+++ b/gcc/cp/cp-tree.def
@@ -182,9 +182,7 @@ DEFTREECODE (BOUND_TEMPLATE_TEMPLATE_PARM, "bound_template_template_parm",
 /* A type designated by `typename T::t'.  TYPE_CONTEXT is `T',
    TYPE_NAME is an IDENTIFIER_NODE for `t'.  If the type was named via
    template-id, TYPENAME_TYPE_FULLNAME will hold the TEMPLATE_ID_EXPR.
-   If TREE_TYPE is present, this type was generated by the implicit
-   typename extension, and the TREE_TYPE is a _TYPE from a baseclass
-   of `T'.  */
+   TREE_TYPE is always NULL.  */
 DEFTREECODE (TYPENAME_TYPE, "typename_type", tcc_type, 0)
 
 /* For template template argument of the form `T::template C'.