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re PR c++/15786 (Bad error message for frequently occuring error.)

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PR c++/15786
	* parser.c (cp_parser_declarator): Add member_p parameter.
	(cp_parser_condition): Adjust calls to cp_parser_declarator.
	(cp_parser_explicit_instantiation): Likewise.
	(cp_parser_init_declarator): Likewise.
	(cp_parser_direct_declarator): Add member_p parameter.  Do not
	parse tentatively when parsing the parameters to a member.
	(cp_parser_type_id): Adjust calls to cp_parser_declarator.
	(cp_parser_parameter_declaration): Likewise.
	(cp_parser_member_declaration): Likewise.
	(cp_parser_exception_declaration): Likewise.

	PR c++/15876
	* g++.dg/parse/error22.C: New test.

From-SVN: r88914
This commit is contained in:
Mark Mitchell 2004-10-12 01:52:19 +00:00 committed by Mark Mitchell
parent 5a1e5472f5
commit db86dd1469
4 changed files with 59 additions and 18 deletions
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12
gcc/cp/ChangeLog
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@ -1,5 +1,17 @@
2004-10-11 Mark Mitchell <mark@codesourcery.com>
PR c++/15786
* parser.c (cp_parser_declarator): Add member_p parameter.
(cp_parser_condition): Adjust calls to cp_parser_declarator.
(cp_parser_explicit_instantiation): Likewise.
(cp_parser_init_declarator): Likewise.
(cp_parser_direct_declarator): Add member_p parameter. Do not
parse tentatively when parsing the parameters to a member.
(cp_parser_type_id): Adjust calls to cp_parser_declarator.
(cp_parser_parameter_declaration): Likewise.
(cp_parser_member_declaration): Likewise.
(cp_parser_exception_declaration): Likewise.
PR c++/17936
* cp-tree.h (CLASSTYPE_TEMPLATE_SPECIALIZATION): Add a comment.
* pt.c (optimize_specialization_lookup_p): Do not optimize lookups

57
gcc/cp/parser.c
View File

@ -1543,9 +1543,9 @@ static void cp_parser_linkage_specification
static tree cp_parser_init_declarator
(cp_parser *, cp_decl_specifier_seq *, bool, bool, int, bool *);
static cp_declarator *cp_parser_declarator
(cp_parser *, cp_parser_declarator_kind, int *, bool *);
(cp_parser *, cp_parser_declarator_kind, int *, bool *, bool);
static cp_declarator *cp_parser_direct_declarator
(cp_parser *, cp_parser_declarator_kind, int *);
(cp_parser *, cp_parser_declarator_kind, int *, bool);
static enum tree_code cp_parser_ptr_operator
(cp_parser *, tree *, cp_cv_quals *);
static cp_cv_quals cp_parser_cv_qualifier_seq_opt
@ -6275,7 +6275,8 @@ cp_parser_condition (cp_parser* parser)
/* Parse the declarator. */
declarator = cp_parser_declarator (parser, CP_PARSER_DECLARATOR_NAMED,
/*ctor_dtor_or_conv_p=*/NULL,
/*parenthesized_p=*/NULL);
/*parenthesized_p=*/NULL,
/*member_p=*/false);
/* Parse the attributes. */
attributes = cp_parser_attributes_opt (parser);
/* Parse the asm-specification. */
@ -9072,7 +9073,8 @@ cp_parser_explicit_instantiation (cp_parser* parser)
declarator
= cp_parser_declarator (parser, CP_PARSER_DECLARATOR_NAMED,
/*ctor_dtor_or_conv_p=*/NULL,
/*parenthesized_p=*/NULL);
/*parenthesized_p=*/NULL,
/*member_p=*/false);
cp_parser_check_for_definition_in_return_type (declarator,
declares_class_or_enum);
if (declarator != cp_error_declarator)
@ -10489,7 +10491,8 @@ cp_parser_init_declarator (cp_parser* parser,
declarator
= cp_parser_declarator (parser, CP_PARSER_DECLARATOR_NAMED,
&ctor_dtor_or_conv_p,
/*parenthesized_p=*/NULL);
/*parenthesized_p=*/NULL,
/*member_p=*/false);
/* Gather up the deferred checks. */
stop_deferring_access_checks ();
@ -10749,13 +10752,16 @@ cp_parser_init_declarator (cp_parser* parser,
expression, not a declaration.)
If PARENTHESIZED_P is non-NULL, *PARENTHESIZED_P is set to true iff
the declarator is a direct-declarator of the form "(...)". */
the declarator is a direct-declarator of the form "(...)".
MEMBER_P is true iff this declarator is a member-declarator. */
static cp_declarator *
cp_parser_declarator (cp_parser* parser,
cp_parser_declarator_kind dcl_kind,
int* ctor_dtor_or_conv_p,
bool* parenthesized_p)
bool* parenthesized_p,
bool member_p)
{
cp_token *token;
cp_declarator *declarator;
@ -10796,7 +10802,8 @@ cp_parser_declarator (cp_parser* parser,
/* Parse the dependent declarator. */
declarator = cp_parser_declarator (parser, dcl_kind,
/*ctor_dtor_or_conv_p=*/NULL,
/*parenthesized_p=*/NULL);
/*parenthesized_p=*/NULL,
/*member_p=*/false);
/* If we are parsing an abstract-declarator, we must handle the
case where the dependent declarator is absent. */
@ -10821,7 +10828,8 @@ cp_parser_declarator (cp_parser* parser,
*parenthesized_p = cp_lexer_next_token_is (parser->lexer,
CPP_OPEN_PAREN);
declarator = cp_parser_direct_declarator (parser, dcl_kind,
ctor_dtor_or_conv_p);
ctor_dtor_or_conv_p,
member_p);
}
if (attributes && declarator != cp_error_declarator)
@ -10854,13 +10862,14 @@ cp_parser_declarator (cp_parser* parser,
we are parsing a direct-declarator. It is
CP_PARSER_DECLARATOR_EITHER, if we can accept either - in the case
of ambiguity we prefer an abstract declarator, as per
[dcl.ambig.res]. CTOR_DTOR_OR_CONV_P is as for
[dcl.ambig.res]. CTOR_DTOR_OR_CONV_P and MEMBER_P are as for
cp_parser_declarator. */
static cp_declarator *
cp_parser_direct_declarator (cp_parser* parser,
cp_parser_declarator_kind dcl_kind,
int* ctor_dtor_or_conv_p)
int* ctor_dtor_or_conv_p,
bool member_p)
{
cp_token *token;
cp_declarator *declarator = NULL;
@ -10919,7 +10928,14 @@ cp_parser_direct_declarator (cp_parser* parser,
cp_parameter_declarator *params;
unsigned saved_num_template_parameter_lists;
cp_parser_parse_tentatively (parser);
/* In a member-declarator, the only valid interpretation
of a parenthesis is the start of a
parameter-declaration-clause. (It is invalid to
initialize a static data member with a parenthesized
initializer; only the "=" form of initialization is
permitted.) */
if (!member_p)
cp_parser_parse_tentatively (parser);
/* Consume the `('. */
cp_lexer_consume_token (parser->lexer);
@ -10945,7 +10961,7 @@ cp_parser_direct_declarator (cp_parser* parser,
/* If all went well, parse the cv-qualifier-seq and the
exception-specification. */
if (cp_parser_parse_definitely (parser))
if (member_p || cp_parser_parse_definitely (parser))
{
cp_cv_quals cv_quals;
tree exception_specification;
@ -10993,7 +11009,8 @@ cp_parser_direct_declarator (cp_parser* parser,
parser->in_type_id_in_expr_p = true;
declarator
= cp_parser_declarator (parser, dcl_kind, ctor_dtor_or_conv_p,
/*parenthesized_p=*/NULL);
/*parenthesized_p=*/NULL,
member_p);
parser->in_type_id_in_expr_p = saved_in_type_id_in_expr_p;
first = false;
/* Expect a `)'. */
@ -11420,7 +11437,8 @@ cp_parser_type_id (cp_parser* parser)
/* Look for the declarator. */
abstract_declarator
= cp_parser_declarator (parser, CP_PARSER_DECLARATOR_ABSTRACT, NULL,
/*parenthesized_p=*/NULL);
/*parenthesized_p=*/NULL,
/*member_p=*/false);
/* Check to see if there really was a declarator. */
if (!cp_parser_parse_definitely (parser))
abstract_declarator = NULL;
@ -11774,7 +11792,8 @@ cp_parser_parameter_declaration (cp_parser *parser,
declarator = cp_parser_declarator (parser,
CP_PARSER_DECLARATOR_EITHER,
/*ctor_dtor_or_conv_p=*/NULL,
parenthesized_p);
parenthesized_p,
/*member_p=*/false);
parser->default_arg_ok_p = saved_default_arg_ok_p;
/* After the declarator, allow more attributes. */
decl_specifiers.attributes
@ -13090,7 +13109,8 @@ cp_parser_member_declaration (cp_parser* parser)
declarator
= cp_parser_declarator (parser, CP_PARSER_DECLARATOR_NAMED,
&ctor_dtor_or_conv_p,
/*parenthesized_p=*/NULL);
/*parenthesized_p=*/NULL,
/*member_p=*/true);
/* If something went wrong parsing the declarator, make sure
that we at least consume some tokens. */
@ -13707,7 +13727,8 @@ cp_parser_exception_declaration (cp_parser* parser)
else
declarator = cp_parser_declarator (parser, CP_PARSER_DECLARATOR_EITHER,
/*ctor_dtor_or_conv_p=*/NULL,
/*parenthesized_p=*/NULL);
/*parenthesized_p=*/NULL,
/*member_p=*/false);
/* Restore the saved message. */
parser->type_definition_forbidden_message = saved_message;

3
gcc/testsuite/ChangeLog
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@ -1,5 +1,8 @@
2004-10-11 Mark Mitchell <mark@codesourcery.com>
PR c++/15876
* g++.dg/parse/error22.C: New test.
PR c++/17936
* g++.dg/template/spec18.C: New test.

5
gcc/testsuite/g++.dg/parse/error22.C Normal file
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@ -0,0 +1,5 @@
// PR c++/15786
struct A {
void foo(bar* p); /* { dg-error "declared" } */
};