diff options
Diffstat (limited to 'gcc/cp/parser.cc')
| -rw-r--r-- | gcc/cp/parser.cc | 42 |
1 files changed, 29 insertions, 13 deletions
diff --git a/gcc/cp/parser.cc b/gcc/cp/parser.cc index 32c6a42..d96fdf8 100644 --- a/gcc/cp/parser.cc +++ b/gcc/cp/parser.cc @@ -2519,7 +2519,7 @@ static cp_expr cp_parser_id_expression static cp_expr cp_parser_unqualified_id (cp_parser *, bool, bool, bool, bool); static tree cp_parser_nested_name_specifier_opt - (cp_parser *, bool, bool, bool, bool, bool = false); + (cp_parser *, bool, bool, bool, bool, bool = false, bool = false); static tree cp_parser_nested_name_specifier (cp_parser *, bool, bool, bool, bool); static tree cp_parser_qualifying_entity @@ -7242,18 +7242,22 @@ check_template_keyword_in_nested_name_spec (tree name) nested-name-specifier template [opt] simple-template-id :: PARSER->SCOPE should be set appropriately before this function is - called. TYPENAME_KEYWORD_P is TRUE if the `typename' keyword is in - effect. TYPE_P is TRUE if we non-type bindings should be ignored - in name lookups. + called. TYPENAME_KEYWORD_P is true if the `typename' keyword is in + effect. TYPE_P is true if we non-type bindings should be ignored + in name lookups. TEMPLATE_KEYWORD_P is true if the `template' keyword + was seen. GLOBAL_P is true if `::' has already been parsed. + TODO: This function doesn't handle the C++14 change to make `::' + a nested-name-specifier by itself. If it did, GLOBAL_P could probably + go. Sets PARSER->SCOPE to the class (TYPE) or namespace (NAMESPACE_DECL) specified by the nested-name-specifier, or leaves it unchanged if there is no nested-name-specifier. Returns the new scope iff there is a nested-name-specifier, or NULL_TREE otherwise. - If CHECK_DEPENDENCY_P is FALSE, names are looked up in dependent scopes. + If CHECK_DEPENDENCY_P is false, names are looked up in dependent scopes. - If IS_DECLARATION is TRUE, the nested-name-specifier is known to be + If IS_DECLARATION is true, the nested-name-specifier is known to be part of a declaration and/or decl-specifier. */ static tree @@ -7262,7 +7266,8 @@ cp_parser_nested_name_specifier_opt (cp_parser *parser, bool check_dependency_p, bool type_p, bool is_declaration, - bool template_keyword_p /* = false */) + bool template_keyword_p /* = false */, + bool global_p /* = false */) { bool success = false; cp_token_position start = 0; @@ -7310,8 +7315,9 @@ cp_parser_nested_name_specifier_opt (cp_parser *parser, /* Spot cases that cannot be the beginning of a nested-name-specifier. On the second and subsequent times - through the loop, we look for the `template' keyword. */ - if (success && token->keyword == RID_TEMPLATE) + (or the first, if '::' has already been parsed) through the + loop, we look for the `template' keyword. */ + if ((success || global_p) && token->keyword == RID_TEMPLATE) ; /* A template-id can start a nested-name-specifier. */ else if (token->type == CPP_TEMPLATE_ID) @@ -7359,8 +7365,11 @@ cp_parser_nested_name_specifier_opt (cp_parser *parser, cp_parser_parse_tentatively (parser); /* Look for the optional `template' keyword, if this isn't the - first time through the loop. */ - if (success) + first time through the loop, or if we've already parsed '::'; + this is then the + nested-name-specifier template [opt] simple-template-id :: + production. */ + if (success || global_p) { template_keyword_p = cp_parser_optional_template_keyword (parser); /* DR1710: "In a qualified-id used as the name in @@ -11829,6 +11838,7 @@ cp_parser_lambda_expression (cp_parser* parser) bool auto_is_implicit_function_template_parm_p = parser->auto_is_implicit_function_template_parm_p; bool saved_omp_array_section_p = parser->omp_array_section_p; + bool saved_in_targ = parser->in_template_argument_list_p; parser->num_template_parameter_lists = 0; parser->in_statement = 0; @@ -11838,6 +11848,7 @@ cp_parser_lambda_expression (cp_parser* parser) parser->implicit_template_scope = 0; parser->auto_is_implicit_function_template_parm_p = false; parser->omp_array_section_p = false; + parser->in_template_argument_list_p = false; /* Inside the lambda, outside unevaluated context do not apply. */ cp_evaluated ev; @@ -11892,6 +11903,7 @@ cp_parser_lambda_expression (cp_parser* parser) parser->auto_is_implicit_function_template_parm_p = auto_is_implicit_function_template_parm_p; parser->omp_array_section_p = saved_omp_array_section_p; + parser->in_template_argument_list_p = saved_in_targ; } /* This lambda shouldn't have any proxies left at this point. */ @@ -21167,7 +21179,9 @@ cp_parser_simple_type_specifier (cp_parser* parser, /*typename_keyword_p=*/false, /*check_dependency_p=*/true, /*type_p=*/false, - /*is_declaration=*/false) + /*is_declaration=*/false, + /*template_keyword_p=*/false, + global_p) != NULL_TREE); /* If we have seen a nested-name-specifier, and the next token is `template', then we are using the template-id production. */ @@ -35928,7 +35942,9 @@ cp_parser_check_class_key (cp_parser *parser, location_t key_loc, return; bool seen_as_union = TREE_CODE (type) == UNION_TYPE; - if (seen_as_union != (class_key == union_type)) + if (class_key != typename_type + && TREE_CODE (type) != TYPENAME_TYPE + && seen_as_union != (class_key == union_type)) { auto_diagnostic_group d; if (permerror (input_location, "%qs tag used in naming %q#T", |