/* A token's value and its associated deferred access checks and
qualifying scope. */
-struct tree_check GTY(())
-{
+struct GTY(()) tree_check {
/* The value associated with the token. */
tree value;
/* The checks that have been associated with value. */
/* A C++ token. */
-typedef struct cp_token GTY (())
-{
+typedef struct GTY (()) cp_token {
/* The kind of token. */
ENUM_BITFIELD (cpp_ttype) type : 8;
/* If this token is a keyword, this value indicates which keyword.
it to the parser. Tokens are never added to the cp_lexer after
it is created. */
-typedef struct cp_lexer GTY (())
-{
+typedef struct GTY (()) cp_lexer {
/* The memory allocated for the buffer. NULL if this lexer does not
own the token buffer. */
cp_token * GTY ((length ("%h.buffer_length"))) buffer;
a cp_token_cache, since everything in here is referenced through
a lexer. */
-typedef struct cp_token_cache GTY(())
-{
+typedef struct GTY(()) cp_token_cache {
/* The beginning of the token range. */
cp_token * GTY((skip)) first;
static FILE *cp_lexer_debug_stream;
#endif /* ENABLE_CHECKING */
+/* Nonzero if we are parsing an unevaluated operand: an operand to
+ sizeof, typeof, or alignof. */
+int cp_unevaluated_operand;
+
/* Create a new main C++ lexer, the lexer that gets tokens from the
preprocessor. */
token->type = CPP_KEYWORD;
/* Record which keyword. */
token->keyword = C_RID_CODE (token->u.value);
- /* Update the value. Some keywords are mapped to particular
- entities, rather than simply having the value of the
- corresponding IDENTIFIER_NODE. For example, `__const' is
- mapped to `const'. */
- token->u.value = ridpointers[token->keyword];
}
else
{
/* Warn about the C++0x keyword (but still treat it as
an identifier). */
warning (OPT_Wc__0x_compat,
- "identifier %<%s%> will become a keyword in C++0x",
- IDENTIFIER_POINTER (token->u.value));
+ "identifier %qE will become a keyword in C++0x",
+ token->u.value);
/* Clear out the C_RID_CODE so we don't warn about this
particular identifier-turned-keyword again. */
else if (token->type == CPP_PRAGMA)
{
/* We smuggled the cpp_token->u.pragma value in an INTEGER_CST. */
- token->pragma_kind = TREE_INT_CST_LOW (token->u.value);
+ token->pragma_kind = ((enum pragma_kind)
+ TREE_INT_CST_LOW (token->u.value));
token->u.value = NULL_TREE;
}
}
/* Flags that are passed to some parsing functions. These values can
be bitwise-ored together. */
-typedef enum cp_parser_flags
+enum
{
/* No flags. */
CP_PARSER_FLAGS_NONE = 0x0,
CP_PARSER_FLAGS_OPTIONAL = 0x1,
/* When parsing a type-specifier, do not allow user-defined types. */
CP_PARSER_FLAGS_NO_USER_DEFINED_TYPES = 0x2
-} cp_parser_flags;
+};
+
+/* This type is used for parameters and variables which hold
+ combinations of the above flags. */
+typedef int cp_parser_flags;
/* The different kinds of declarators we want to parse. */
/* Tree code for the binary operation we are parsing. */
enum tree_code tree_type;
/* Precedence of the binary operation we are parsing. */
- int prec;
+ enum cp_parser_prec prec;
} cp_parser_expression_stack_entry;
/* The stack for storing partial expressions. We only need NUM_PREC_VALUES
cp_parser_expression_stack[NUM_PREC_VALUES];
/* Context that is saved and restored when parsing tentatively. */
-typedef struct cp_parser_context GTY (())
-{
+typedef struct GTY (()) cp_parser_context {
/* If this is a tentative parsing context, the status of the
tentative parse. */
enum cp_parser_status_kind status;
/* The cp_parser structure represents the C++ parser. */
-typedef struct cp_parser GTY(())
-{
+typedef struct GTY(()) cp_parser {
/* The lexer from which we are obtaining tokens. */
cp_lexer *lexer;
(cp_parser *, tree, bool);
static tree cp_parser_postfix_dot_deref_expression
(cp_parser *, enum cpp_ttype, tree, bool, cp_id_kind *, location_t);
-static tree cp_parser_parenthesized_expression_list
+static VEC(tree,gc) *cp_parser_parenthesized_expression_list
(cp_parser *, bool, bool, bool, bool *);
static void cp_parser_pseudo_destructor_name
(cp_parser *, tree *, tree *);
(cp_token *);
static tree cp_parser_new_expression
(cp_parser *);
-static tree cp_parser_new_placement
+static VEC(tree,gc) *cp_parser_new_placement
(cp_parser *);
static tree cp_parser_new_type_id
(cp_parser *, tree *);
(cp_parser *);
static cp_declarator *cp_parser_direct_new_declarator
(cp_parser *);
-static tree cp_parser_new_initializer
+static VEC(tree,gc) *cp_parser_new_initializer
(cp_parser *);
static tree cp_parser_delete_expression
(cp_parser *);
CPP_KEYWORD, keywords are treated like
identifiers. */
(token->type == CPP_KEYWORD ? CPP_NAME : token->type),
- token->u.value);
+ token->u.value, token->flags);
}
}
cp_parser_check_decl_spec (cp_decl_specifier_seq *decl_specs,
location_t location)
{
- cp_decl_spec ds;
+ int ds;
for (ds = ds_first; ds != ds_last; ++ds)
{
- unsigned count = decl_specs->specs[(int)ds];
+ unsigned count = decl_specs->specs[ds];
if (count < 2)
continue;
/* The "long" specifier is a special case because of "long long". */
"__complex",
"__thread"
};
- error ("%Hduplicate %qs", &location, decl_spec_names[(int)ds]);
+ error ("%Hduplicate %qs", &location, decl_spec_names[ds]);
}
}
}
bool is_builtin_constant_p;
bool saved_integral_constant_expression_p = false;
bool saved_non_integral_constant_expression_p = false;
- tree args;
+ VEC(tree,gc) *args;
is_member_access = false;
= saved_non_integral_constant_expression_p;
}
- if (args == error_mark_node)
+ if (args == NULL)
{
postfix_expression = error_mark_node;
break;
"a function call"))
{
postfix_expression = error_mark_node;
+ release_tree_vector (args);
break;
}
{
if (TREE_CODE (postfix_expression) == IDENTIFIER_NODE)
{
- if (args)
+ if (!VEC_empty (tree, args))
{
koenig_p = true;
if (!any_type_dependent_arguments_p (args))
/* We do not perform argument-dependent lookup if
normal lookup finds a non-function, in accordance
with the expected resolution of DR 218. */
- else if (args && is_overloaded_fn (postfix_expression))
+ else if (!VEC_empty (tree, args)
+ && is_overloaded_fn (postfix_expression))
{
tree fn = get_first_fn (postfix_expression);
|| any_type_dependent_arguments_p (args)))
{
postfix_expression
- = build_nt_call_list (postfix_expression, args);
+ = build_nt_call_vec (postfix_expression, args);
+ release_tree_vector (args);
break;
}
{
postfix_expression
= (build_new_method_call
- (instance, fn, args, NULL_TREE,
+ (instance, fn, &args, NULL_TREE,
(idk == CP_ID_KIND_QUALIFIED
? LOOKUP_NONVIRTUAL : LOOKUP_NORMAL),
/*fn_p=*/NULL,
}
else
postfix_expression
- = finish_call_expr (postfix_expression, args,
+ = finish_call_expr (postfix_expression, &args,
/*disallow_virtual=*/false,
/*koenig_p=*/false,
tf_warning_or_error);
|| TREE_CODE (postfix_expression) == MEMBER_REF
|| TREE_CODE (postfix_expression) == DOTSTAR_EXPR)
postfix_expression = (build_offset_ref_call_from_tree
- (postfix_expression, args));
+ (postfix_expression, &args));
else if (idk == CP_ID_KIND_QUALIFIED)
/* A call to a static class member, or a namespace-scope
function. */
postfix_expression
- = finish_call_expr (postfix_expression, args,
+ = finish_call_expr (postfix_expression, &args,
/*disallow_virtual=*/true,
koenig_p,
tf_warning_or_error);
else
/* All other function calls. */
postfix_expression
- = finish_call_expr (postfix_expression, args,
+ = finish_call_expr (postfix_expression, &args,
/*disallow_virtual=*/false,
koenig_p,
tf_warning_or_error);
/* The POSTFIX_EXPRESSION is certainly no longer an id. */
idk = CP_ID_KIND_NONE;
+
+ release_tree_vector (args);
}
break;
ALLOW_EXPANSION_P is true if this expression allows expansion of an
argument pack.
- Returns a TREE_LIST. The TREE_VALUE of each node is a
- representation of an assignment-expression. Note that a TREE_LIST
- is returned even if there is only a single expression in the list.
- error_mark_node is returned if the ( and or ) are
- missing. NULL_TREE is returned on no expressions. The parentheses
- are eaten. IS_ATTRIBUTE_LIST is true if this is really an attribute
- list being parsed. If NON_CONSTANT_P is non-NULL, *NON_CONSTANT_P
- indicates whether or not all of the expressions in the list were
- constant. */
+ Returns a vector of trees. Each element is a representation of an
+ assignment-expression. NULL is returned if the ( and or ) are
+ missing. An empty, but allocated, vector is returned on no
+ expressions. The parentheses are eaten. IS_ATTRIBUTE_LIST is true
+ if this is really an attribute list being parsed. If
+ NON_CONSTANT_P is non-NULL, *NON_CONSTANT_P indicates whether or
+ not all of the expressions in the list were constant. */
-static tree
+static VEC(tree,gc) *
cp_parser_parenthesized_expression_list (cp_parser* parser,
bool is_attribute_list,
bool cast_p,
bool allow_expansion_p,
bool *non_constant_p)
{
- tree expression_list = NULL_TREE;
+ VEC(tree,gc) *expression_list;
bool fold_expr_p = is_attribute_list;
tree identifier = NULL_TREE;
bool saved_greater_than_is_operator_p;
*non_constant_p = false;
if (!cp_parser_require (parser, CPP_OPEN_PAREN, "%<(%>"))
- return error_mark_node;
+ return NULL;
+
+ expression_list = make_tree_vector ();
/* Within a parenthesized expression, a `>' token is always
the greater-than operator. */
expressions to the list, so that we can still tell if
the correct form for a parenthesized expression-list
is found. That gives better errors. */
- expression_list = tree_cons (NULL_TREE, expr, expression_list);
+ VEC_safe_push (tree, gc, expression_list, expr);
if (expr == error_mark_node)
goto skip_comma;
{
parser->greater_than_is_operator_p
= saved_greater_than_is_operator_p;
- return error_mark_node;
+ return NULL;
}
}
parser->greater_than_is_operator_p
= saved_greater_than_is_operator_p;
- /* We built up the list in reverse order so we must reverse it now. */
- expression_list = nreverse (expression_list);
if (identifier)
- expression_list = tree_cons (NULL_TREE, identifier, expression_list);
+ VEC_safe_insert (tree, gc, expression_list, 0, identifier);
return expression_list;
}
cp_parser_new_expression (cp_parser* parser)
{
bool global_scope_p;
- tree placement;
+ VEC(tree,gc) *placement;
tree type;
- tree initializer;
+ VEC(tree,gc) *initializer;
tree nelts;
+ tree ret;
/* Look for the optional `::' operator. */
global_scope_p
placement = cp_parser_new_placement (parser);
/* If that didn't work out, there's no new-placement. */
if (!cp_parser_parse_definitely (parser))
- placement = NULL_TREE;
+ {
+ if (placement != NULL)
+ release_tree_vector (placement);
+ placement = NULL;
+ }
/* If the next token is a `(', then we have a parenthesized
type-id. */
|| cp_lexer_next_token_is (parser->lexer, CPP_OPEN_BRACE))
initializer = cp_parser_new_initializer (parser);
else
- initializer = NULL_TREE;
+ initializer = NULL;
/* A new-expression may not appear in an integral constant
expression. */
if (cp_parser_non_integral_constant_expression (parser, "%<new%>"))
- return error_mark_node;
+ ret = error_mark_node;
+ else
+ {
+ /* Create a representation of the new-expression. */
+ ret = build_new (&placement, type, nelts, &initializer, global_scope_p,
+ tf_warning_or_error);
+ }
- /* Create a representation of the new-expression. */
- return build_new (placement, type, nelts, initializer, global_scope_p,
- tf_warning_or_error);
+ if (placement != NULL)
+ release_tree_vector (placement);
+ if (initializer != NULL)
+ release_tree_vector (initializer);
+
+ return ret;
}
/* Parse a new-placement.
Returns the same representation as for an expression-list. */
-static tree
+static VEC(tree,gc) *
cp_parser_new_placement (cp_parser* parser)
{
- tree expression_list;
+ VEC(tree,gc) *expression_list;
/* Parse the expression-list. */
expression_list = (cp_parser_parenthesized_expression_list
( expression-list [opt] )
braced-init-list
- Returns a representation of the expression-list. If there is no
- expression-list, VOID_ZERO_NODE is returned. */
+ Returns a representation of the expression-list. */
-static tree
+static VEC(tree,gc) *
cp_parser_new_initializer (cp_parser* parser)
{
- tree expression_list;
+ VEC(tree,gc) *expression_list;
if (cp_lexer_next_token_is (parser->lexer, CPP_OPEN_BRACE))
{
+ tree t;
bool expr_non_constant_p;
maybe_warn_cpp0x ("extended initializer lists");
- expression_list = cp_parser_braced_list (parser, &expr_non_constant_p);
- CONSTRUCTOR_IS_DIRECT_INIT (expression_list) = 1;
- expression_list = build_tree_list (NULL_TREE, expression_list);
+ t = cp_parser_braced_list (parser, &expr_non_constant_p);
+ CONSTRUCTOR_IS_DIRECT_INIT (t) = 1;
+ expression_list = make_tree_vector_single (t);
}
else
expression_list = (cp_parser_parenthesized_expression_list
(parser, false, /*cast_p=*/false, /*allow_expansion_p=*/true,
/*non_constant_p=*/NULL));
- if (!expression_list)
- expression_list = void_zero_node;
return expression_list;
}
return error_mark_node;
/* Perform the cast. */
- expr = build_c_cast (type, expr);
+ expr = build_c_cast (input_location, type, expr);
return expr;
}
else
cp_lexer_consume_token (parser->lexer);
if (cp_parser_allow_gnu_extensions_p (parser)
&& cp_lexer_next_token_is (parser->lexer, CPP_COLON))
- /* Implicit true clause. */
- expr = NULL_TREE;
+ {
+ /* Implicit true clause. */
+ expr = NULL_TREE;
+ c_inhibit_evaluation_warnings += logical_or_expr == truthvalue_true_node;
+ }
else
- /* Parse the expression. */
- expr = cp_parser_expression (parser, /*cast_p=*/false, NULL);
+ {
+ /* Parse the expression. */
+ c_inhibit_evaluation_warnings += logical_or_expr == truthvalue_false_node;
+ expr = cp_parser_expression (parser, /*cast_p=*/false, NULL);
+ c_inhibit_evaluation_warnings +=
+ ((logical_or_expr == truthvalue_true_node)
+ - (logical_or_expr == truthvalue_false_node));
+ }
/* The next token should be a `:'. */
cp_parser_require (parser, CPP_COLON, "%<:%>");
/* Parse the assignment-expression. */
assignment_expr = cp_parser_assignment_expression (parser, /*cast_p=*/false, NULL);
+ c_inhibit_evaluation_warnings -= logical_or_expr == truthvalue_true_node;
/* Build the conditional-expression. */
return build_x_conditional_expr (logical_or_expr,
cp_parser_label_for_labeled_statement (cp_parser* parser)
{
cp_token *token;
+ tree label = NULL_TREE;
/* The next token should be an identifier. */
token = cp_lexer_peek_token (parser->lexer);
expr_hi = NULL_TREE;
if (parser->in_switch_statement_p)
- finish_case_label (expr, expr_hi);
+ finish_case_label (token->location, expr, expr_hi);
else
error ("%Hcase label %qE not within a switch statement",
&token->location, expr);
cp_lexer_consume_token (parser->lexer);
if (parser->in_switch_statement_p)
- finish_case_label (NULL_TREE, NULL_TREE);
+ finish_case_label (token->location, NULL_TREE, NULL_TREE);
else
error ("%Hcase label not within a switch statement", &token->location);
break;
default:
/* Anything else must be an ordinary label. */
- finish_label_stmt (cp_parser_identifier (parser));
+ label = finish_label_stmt (cp_parser_identifier (parser));
break;
}
/* Require the `:' token. */
cp_parser_require (parser, CPP_COLON, "%<:%>");
+
+ /* An ordinary label may optionally be followed by attributes.
+ However, this is only permitted if the attributes are then
+ followed by a semicolon. This is because, for backward
+ compatibility, when parsing
+ lab: __attribute__ ((unused)) int i;
+ we want the attribute to attach to "i", not "lab". */
+ if (label != NULL_TREE
+ && cp_lexer_next_token_is_keyword (parser->lexer, RID_ATTRIBUTE))
+ {
+ tree attrs;
+
+ cp_parser_parse_tentatively (parser);
+ attrs = cp_parser_attributes_opt (parser);
+ if (attrs == NULL_TREE
+ || cp_lexer_next_token_is_not (parser->lexer, CPP_SEMICOLON))
+ cp_parser_abort_tentative_parse (parser);
+ else if (!cp_parser_parse_definitely (parser))
+ ;
+ else
+ cplus_decl_attributes (&label, attrs, 0);
+ }
}
/* Parse an expression-statement.
if (cp_lexer_next_token_is (parser->lexer, CPP_SEMICOLON))
{
location_t loc = cp_lexer_peek_token (parser->lexer)->location;
- add_stmt (build_empty_stmt ());
+ add_stmt (build_empty_stmt (loc));
cp_lexer_consume_token (parser->lexer);
if (!cp_lexer_next_token_is_keyword (parser->lexer, RID_ELSE))
warning_at (loc, OPT_Wempty_body, "suggest braces around "
/* Parse the else-clause. */
if (cp_lexer_next_token_is (parser->lexer, CPP_SEMICOLON))
{
- warning_at (cp_lexer_peek_token (parser->lexer)->location,
+ location_t loc;
+ loc = cp_lexer_peek_token (parser->lexer)->location;
+ warning_at (loc,
OPT_Wempty_body, "suggest braces around "
"empty body in an %<else%> statement");
- add_stmt (build_empty_stmt ());
+ add_stmt (build_empty_stmt (loc));
cp_lexer_consume_token (parser->lexer);
}
else
/* Mark if () ; with a special NOP_EXPR. */
if (cp_lexer_next_token_is (parser->lexer, CPP_SEMICOLON))
{
+ location_t loc = cp_lexer_peek_token (parser->lexer)->location;
cp_lexer_consume_token (parser->lexer);
- statement = add_stmt (build_empty_stmt ());
+ statement = add_stmt (build_empty_stmt (loc));
}
/* if a compound is opened, we simply parse the statement directly. */
else if (cp_lexer_next_token_is (parser->lexer, CPP_OPEN_BRACE))
parser->integral_constant_expression_p = false;
/* Do not actually evaluate the expression. */
- ++skip_evaluation;
+ ++cp_unevaluated_operand;
+
+ /* Do not warn about problems with the expression. */
+ ++c_inhibit_evaluation_warnings;
/* Parse the opening `('. */
if (!cp_parser_require (parser, CPP_OPEN_PAREN, "%<(%>"))
}
/* Go back to evaluating expressions. */
- --skip_evaluation;
+ --cp_unevaluated_operand;
+ --c_inhibit_evaluation_warnings;
/* Restore the old message and the integral constant expression
flags. */
expression_list = build_tree_list (NULL_TREE, expression_list);
}
else
- expression_list
- = cp_parser_parenthesized_expression_list (parser, false,
- /*cast_p=*/false,
- /*allow_expansion_p=*/true,
- /*non_constant_p=*/NULL);
+ {
+ VEC(tree,gc)* vec;
+ vec = cp_parser_parenthesized_expression_list (parser, false,
+ /*cast_p=*/false,
+ /*allow_expansion_p=*/true,
+ /*non_constant_p=*/NULL);
+ if (vec == NULL)
+ return error_mark_node;
+ expression_list = build_tree_list_vec (vec);
+ release_tree_vector (vec);
+ }
+
if (expression_list == error_mark_node)
return error_mark_node;
if (!expression_list)
tree parameter;
bool is_non_type;
bool is_parameter_pack;
+ location_t parm_loc;
/* Parse the template-parameter. */
+ parm_loc = cp_lexer_peek_token (parser->lexer)->location;
parameter = cp_parser_template_parameter (parser,
&is_non_type,
&is_parameter_pack);
/* Add it to the list. */
if (parameter != error_mark_node)
parameter_list = process_template_parm (parameter_list,
+ parm_loc,
parameter,
is_non_type,
is_parameter_pack);
argument pack. */
if (cp_lexer_next_token_is (parser->lexer, CPP_ELLIPSIS))
{
+ if (argument == error_mark_node)
+ {
+ cp_token *token = cp_lexer_peek_token (parser->lexer);
+ error ("%Hexpected parameter pack before %<...%>",
+ &token->location);
+ }
/* Consume the `...' token. */
cp_lexer_consume_token (parser->lexer);
&non_constant_p);
if (!non_constant_p)
bounds = fold_non_dependent_expr (bounds);
- else if (processing_template_decl)
- {
- /* Remember this wasn't a constant-expression. */
- bounds = build_nop (TREE_TYPE (bounds), bounds);
- TREE_SIDE_EFFECTS (bounds) = 1;
- }
-
/* Normally, the array bound must be an integral constant
expression. However, as an extension, we allow VLAs
in function scopes. */
&token->location);
bounds = error_mark_node;
}
+ else if (processing_template_decl && !error_operand_p (bounds))
+ {
+ /* Remember this wasn't a constant-expression. */
+ bounds = build_nop (TREE_TYPE (bounds), bounds);
+ TREE_SIDE_EFFECTS (bounds) = 1;
+ }
}
else
bounds = NULL_TREE;
}
else if (first && dcl_kind != CP_PARSER_DECLARATOR_ABSTRACT)
{
- tree qualifying_scope;
- tree unqualified_name;
- special_function_kind sfk;
- bool abstract_ok;
- bool pack_expansion_p = false;
- cp_token *declarator_id_start_token;
-
- /* Parse a declarator-id */
- abstract_ok = (dcl_kind == CP_PARSER_DECLARATOR_EITHER);
- if (abstract_ok)
- {
- cp_parser_parse_tentatively (parser);
+ {
+ tree qualifying_scope;
+ tree unqualified_name;
+ special_function_kind sfk;
+ bool abstract_ok;
+ bool pack_expansion_p = false;
+ cp_token *declarator_id_start_token;
+
+ /* Parse a declarator-id */
+ abstract_ok = (dcl_kind == CP_PARSER_DECLARATOR_EITHER);
+ if (abstract_ok)
+ {
+ cp_parser_parse_tentatively (parser);
- /* If we see an ellipsis, we should be looking at a
- parameter pack. */
- if (token->type == CPP_ELLIPSIS)
- {
- /* Consume the `...' */
- cp_lexer_consume_token (parser->lexer);
+ /* If we see an ellipsis, we should be looking at a
+ parameter pack. */
+ if (token->type == CPP_ELLIPSIS)
+ {
+ /* Consume the `...' */
+ cp_lexer_consume_token (parser->lexer);
- pack_expansion_p = true;
- }
- }
+ pack_expansion_p = true;
+ }
+ }
- declarator_id_start_token = cp_lexer_peek_token (parser->lexer);
- unqualified_name
- = cp_parser_declarator_id (parser, /*optional_p=*/abstract_ok);
- qualifying_scope = parser->scope;
- if (abstract_ok)
- {
- bool okay = false;
-
- if (!unqualified_name && pack_expansion_p)
- {
- /* Check whether an error occurred. */
- okay = !cp_parser_error_occurred (parser);
-
- /* We already consumed the ellipsis to mark a
- parameter pack, but we have no way to report it,
- so abort the tentative parse. We will be exiting
- immediately anyway. */
- cp_parser_abort_tentative_parse (parser);
- }
- else
- okay = cp_parser_parse_definitely (parser);
-
- if (!okay)
- unqualified_name = error_mark_node;
- else if (unqualified_name
- && (qualifying_scope
- || (TREE_CODE (unqualified_name)
- != IDENTIFIER_NODE)))
- {
- cp_parser_error (parser, "expected unqualified-id");
- unqualified_name = error_mark_node;
- }
- }
+ declarator_id_start_token = cp_lexer_peek_token (parser->lexer);
+ unqualified_name
+ = cp_parser_declarator_id (parser, /*optional_p=*/abstract_ok);
+ qualifying_scope = parser->scope;
+ if (abstract_ok)
+ {
+ bool okay = false;
- if (!unqualified_name)
- return NULL;
- if (unqualified_name == error_mark_node)
- {
- declarator = cp_error_declarator;
- pack_expansion_p = false;
- declarator->parameter_pack_p = false;
- break;
- }
+ if (!unqualified_name && pack_expansion_p)
+ {
+ /* Check whether an error occurred. */
+ okay = !cp_parser_error_occurred (parser);
+
+ /* We already consumed the ellipsis to mark a
+ parameter pack, but we have no way to report it,
+ so abort the tentative parse. We will be exiting
+ immediately anyway. */
+ cp_parser_abort_tentative_parse (parser);
+ }
+ else
+ okay = cp_parser_parse_definitely (parser);
- if (qualifying_scope && at_namespace_scope_p ()
- && TREE_CODE (qualifying_scope) == TYPENAME_TYPE)
- {
- /* In the declaration of a member of a template class
- outside of the class itself, the SCOPE will sometimes
- be a TYPENAME_TYPE. For example, given:
-
- template <typename T>
- int S<T>::R::i = 3;
-
- the SCOPE will be a TYPENAME_TYPE for `S<T>::R'. In
- this context, we must resolve S<T>::R to an ordinary
- type, rather than a typename type.
-
- The reason we normally avoid resolving TYPENAME_TYPEs
- is that a specialization of `S' might render
- `S<T>::R' not a type. However, if `S' is
- specialized, then this `i' will not be used, so there
- is no harm in resolving the types here. */
- tree type;
+ if (!okay)
+ unqualified_name = error_mark_node;
+ else if (unqualified_name
+ && (qualifying_scope
+ || (TREE_CODE (unqualified_name)
+ != IDENTIFIER_NODE)))
+ {
+ cp_parser_error (parser, "expected unqualified-id");
+ unqualified_name = error_mark_node;
+ }
+ }
- /* Resolve the TYPENAME_TYPE. */
- type = resolve_typename_type (qualifying_scope,
- /*only_current_p=*/false);
- /* If that failed, the declarator is invalid. */
- if (TREE_CODE (type) == TYPENAME_TYPE)
- error ("%H%<%T::%E%> is not a type",
- &declarator_id_start_token->location,
- TYPE_CONTEXT (qualifying_scope),
- TYPE_IDENTIFIER (qualifying_scope));
- qualifying_scope = type;
- }
+ if (!unqualified_name)
+ return NULL;
+ if (unqualified_name == error_mark_node)
+ {
+ declarator = cp_error_declarator;
+ pack_expansion_p = false;
+ declarator->parameter_pack_p = false;
+ break;
+ }
- sfk = sfk_none;
+ if (qualifying_scope && at_namespace_scope_p ()
+ && TREE_CODE (qualifying_scope) == TYPENAME_TYPE)
+ {
+ /* In the declaration of a member of a template class
+ outside of the class itself, the SCOPE will sometimes
+ be a TYPENAME_TYPE. For example, given:
+
+ template <typename T>
+ int S<T>::R::i = 3;
+
+ the SCOPE will be a TYPENAME_TYPE for `S<T>::R'. In
+ this context, we must resolve S<T>::R to an ordinary
+ type, rather than a typename type.
+
+ The reason we normally avoid resolving TYPENAME_TYPEs
+ is that a specialization of `S' might render
+ `S<T>::R' not a type. However, if `S' is
+ specialized, then this `i' will not be used, so there
+ is no harm in resolving the types here. */
+ tree type;
+
+ /* Resolve the TYPENAME_TYPE. */
+ type = resolve_typename_type (qualifying_scope,
+ /*only_current_p=*/false);
+ /* If that failed, the declarator is invalid. */
+ if (TREE_CODE (type) == TYPENAME_TYPE)
+ error ("%H%<%T::%E%> is not a type",
+ &declarator_id_start_token->location,
+ TYPE_CONTEXT (qualifying_scope),
+ TYPE_IDENTIFIER (qualifying_scope));
+ qualifying_scope = type;
+ }
- if (unqualified_name)
- {
- tree class_type;
+ sfk = sfk_none;
- if (qualifying_scope
- && CLASS_TYPE_P (qualifying_scope))
- class_type = qualifying_scope;
- else
- class_type = current_class_type;
+ if (unqualified_name)
+ {
+ tree class_type;
- if (TREE_CODE (unqualified_name) == TYPE_DECL)
- {
- tree name_type = TREE_TYPE (unqualified_name);
- if (class_type && same_type_p (name_type, class_type))
- {
- if (qualifying_scope
- && CLASSTYPE_USE_TEMPLATE (name_type))
- {
- error ("%Hinvalid use of constructor as a template",
- &declarator_id_start_token->location);
- inform (input_location, "use %<%T::%D%> instead of %<%T::%D%> to "
- "name the constructor in a qualified name",
- class_type,
- DECL_NAME (TYPE_TI_TEMPLATE (class_type)),
- class_type, name_type);
- declarator = cp_error_declarator;
- break;
- }
- else
- unqualified_name = constructor_name (class_type);
- }
- else
- {
- /* We do not attempt to print the declarator
- here because we do not have enough
- information about its original syntactic
- form. */
- cp_parser_error (parser, "invalid declarator");
- declarator = cp_error_declarator;
- break;
- }
- }
+ if (qualifying_scope
+ && CLASS_TYPE_P (qualifying_scope))
+ class_type = qualifying_scope;
+ else
+ class_type = current_class_type;
- if (class_type)
- {
- if (TREE_CODE (unqualified_name) == BIT_NOT_EXPR)
- sfk = sfk_destructor;
- else if (IDENTIFIER_TYPENAME_P (unqualified_name))
- sfk = sfk_conversion;
- else if (/* There's no way to declare a constructor
- for an anonymous type, even if the type
- got a name for linkage purposes. */
- !TYPE_WAS_ANONYMOUS (class_type)
- && constructor_name_p (unqualified_name,
- class_type))
- {
- unqualified_name = constructor_name (class_type);
- sfk = sfk_constructor;
- }
+ if (TREE_CODE (unqualified_name) == TYPE_DECL)
+ {
+ tree name_type = TREE_TYPE (unqualified_name);
+ if (class_type && same_type_p (name_type, class_type))
+ {
+ if (qualifying_scope
+ && CLASSTYPE_USE_TEMPLATE (name_type))
+ {
+ error ("%Hinvalid use of constructor as a template",
+ &declarator_id_start_token->location);
+ inform (input_location, "use %<%T::%D%> instead of %<%T::%D%> to "
+ "name the constructor in a qualified name",
+ class_type,
+ DECL_NAME (TYPE_TI_TEMPLATE (class_type)),
+ class_type, name_type);
+ declarator = cp_error_declarator;
+ break;
+ }
+ else
+ unqualified_name = constructor_name (class_type);
+ }
+ else
+ {
+ /* We do not attempt to print the declarator
+ here because we do not have enough
+ information about its original syntactic
+ form. */
+ cp_parser_error (parser, "invalid declarator");
+ declarator = cp_error_declarator;
+ break;
+ }
+ }
- if (ctor_dtor_or_conv_p && sfk != sfk_none)
- *ctor_dtor_or_conv_p = -1;
- }
- }
- declarator = make_id_declarator (qualifying_scope,
- unqualified_name,
- sfk);
- declarator->id_loc = token->location;
- declarator->parameter_pack_p = pack_expansion_p;
+ if (class_type)
+ {
+ if (TREE_CODE (unqualified_name) == BIT_NOT_EXPR)
+ sfk = sfk_destructor;
+ else if (IDENTIFIER_TYPENAME_P (unqualified_name))
+ sfk = sfk_conversion;
+ else if (/* There's no way to declare a constructor
+ for an anonymous type, even if the type
+ got a name for linkage purposes. */
+ !TYPE_WAS_ANONYMOUS (class_type)
+ && constructor_name_p (unqualified_name,
+ class_type))
+ {
+ unqualified_name = constructor_name (class_type);
+ sfk = sfk_constructor;
+ }
- if (pack_expansion_p)
- maybe_warn_variadic_templates ();
+ if (ctor_dtor_or_conv_p && sfk != sfk_none)
+ *ctor_dtor_or_conv_p = -1;
+ }
+ }
+ declarator = make_id_declarator (qualifying_scope,
+ unqualified_name,
+ sfk);
+ declarator->id_loc = token->location;
+ declarator->parameter_pack_p = pack_expansion_p;
+
+ if (pack_expansion_p)
+ maybe_warn_variadic_templates ();
+ }
handle_declarator:;
scope = get_scope_of_declarator (declarator);
if (type_specifier_seq.type
&& type_uses_auto (type_specifier_seq.type))
{
- error ("invalid use of %<auto%>");
- return error_mark_node;
+ /* A type-id with type 'auto' is only ok if the abstract declarator
+ is a function declarator with a late-specified return type. */
+ if (abstract_declarator
+ && abstract_declarator->kind == cdk_function
+ && abstract_declarator->u.function.late_return_type)
+ /* OK */;
+ else
+ {
+ error ("invalid use of %<auto%>");
+ return error_mark_node;
+ }
}
return groktypename (&type_specifier_seq, abstract_declarator,
init = cp_parser_initializer_clause (parser, non_constant_p);
}
else if (token->type == CPP_OPEN_PAREN)
- init = cp_parser_parenthesized_expression_list (parser, false,
- /*cast_p=*/false,
- /*allow_expansion_p=*/true,
- non_constant_p);
+ {
+ VEC(tree,gc) *vec;
+ vec = cp_parser_parenthesized_expression_list (parser, false,
+ /*cast_p=*/false,
+ /*allow_expansion_p=*/true,
+ non_constant_p);
+ if (vec == NULL)
+ return error_mark_node;
+ init = build_tree_list_vec (vec);
+ release_tree_vector (vec);
+ }
else if (token->type == CPP_OPEN_BRACE)
{
maybe_warn_cpp0x ("extended initializer lists");
know it is an anonymous aggregate. */
fixup_anonymous_aggr (type);
/* And make the corresponding data member. */
- decl = build_decl (FIELD_DECL, NULL_TREE, type);
+ decl = build_decl (decl_spec_token_start->location,
+ FIELD_DECL, NULL_TREE, type);
/* Add it to the class. */
finish_member_declaration (decl);
}
/* Save away the identifier that indicates which attribute
this is. */
- identifier = token->u.value;
+ identifier = (token->type == CPP_KEYWORD)
+ /* For keywords, use the canonical spelling, not the
+ parsed identifier. */
+ ? ridpointers[(int) token->keyword]
+ : token->u.value;
+
attribute = build_tree_list (identifier, NULL_TREE);
/* Peek at the next token. */
/* If it's an `(', then parse the attribute arguments. */
if (token->type == CPP_OPEN_PAREN)
{
- arguments = cp_parser_parenthesized_expression_list
- (parser, true, /*cast_p=*/false,
- /*allow_expansion_p=*/false,
- /*non_constant_p=*/NULL);
+ VEC(tree,gc) *vec;
+ vec = cp_parser_parenthesized_expression_list
+ (parser, true, /*cast_p=*/false,
+ /*allow_expansion_p=*/false,
+ /*non_constant_p=*/NULL);
+ if (vec == NULL)
+ arguments = error_mark_node;
+ else
+ {
+ arguments = build_tree_list_vec (vec);
+ release_tree_vector (vec);
+ }
/* Save the arguments away. */
TREE_VALUE (attribute) = arguments;
}
static tree
cp_parser_functional_cast (cp_parser* parser, tree type)
{
+ VEC(tree,gc) *vec;
tree expression_list;
tree cast;
bool nonconst_p;
return finish_compound_literal (type, expression_list);
}
- expression_list
- = cp_parser_parenthesized_expression_list (parser, false,
- /*cast_p=*/true,
- /*allow_expansion_p=*/true,
- /*non_constant_p=*/NULL);
+
+ vec = cp_parser_parenthesized_expression_list (parser, false,
+ /*cast_p=*/true,
+ /*allow_expansion_p=*/true,
+ /*non_constant_p=*/NULL);
+ if (vec == NULL)
+ expression_list = error_mark_node;
+ else
+ {
+ expression_list = build_tree_list_vec (vec);
+ release_tree_vector (vec);
+ }
cast = build_functional_cast (type, expression_list,
tf_warning_or_error);
tree saved_qualifying_scope;
tree saved_object_scope;
bool saved_greater_than_is_operator_p;
- bool saved_skip_evaluation;
+ int saved_unevaluated_operand;
+ int saved_inhibit_evaluation_warnings;
/* [temp.names]
saved_object_scope = parser->object_scope;
/* We need to evaluate the template arguments, even though this
template-id may be nested within a "sizeof". */
- saved_skip_evaluation = skip_evaluation;
- skip_evaluation = false;
+ saved_unevaluated_operand = cp_unevaluated_operand;
+ cp_unevaluated_operand = 0;
+ saved_inhibit_evaluation_warnings = c_inhibit_evaluation_warnings;
+ c_inhibit_evaluation_warnings = 0;
/* Parse the template-argument-list itself. */
if (cp_lexer_next_token_is (parser->lexer, CPP_GREATER)
|| cp_lexer_next_token_is (parser->lexer, CPP_RSHIFT))
parser->scope = saved_scope;
parser->qualifying_scope = saved_qualifying_scope;
parser->object_scope = saved_object_scope;
- skip_evaluation = saved_skip_evaluation;
+ cp_unevaluated_operand = saved_unevaluated_operand;
+ c_inhibit_evaluation_warnings = saved_inhibit_evaluation_warnings;
return arguments;
}
}
/* Do not actually evaluate the expression. */
- ++skip_evaluation;
+ ++cp_unevaluated_operand;
+ ++c_inhibit_evaluation_warnings;
/* If it's a `(', then we might be looking at the type-id
construction. */
if (cp_lexer_next_token_is (parser->lexer, CPP_OPEN_PAREN))
expr = make_pack_expansion (expr);
/* Go back to evaluating expressions. */
- --skip_evaluation;
+ --cp_unevaluated_operand;
+ --c_inhibit_evaluation_warnings;
/* Free the message we created. */
free (tmp);
tree sel_seq = NULL_TREE;
bool maybe_unary_selector_p = true;
cp_token *token;
+ location_t loc = cp_lexer_peek_token (parser->lexer)->location;
cp_lexer_consume_token (parser->lexer); /* Eat '@selector'. */
cp_parser_require (parser, CPP_OPEN_PAREN, "%<(%>");
finish_selector:
cp_parser_require (parser, CPP_CLOSE_PAREN, "%<)%>");
- return objc_build_selector_expr (sel_seq);
+ return objc_build_selector_expr (loc, sel_seq);
}
/* Parse a list of identifiers.
static tree
cp_parser_objc_throw_statement (cp_parser *parser) {
tree expr = NULL_TREE;
+ location_t loc = cp_lexer_peek_token (parser->lexer)->location;
cp_parser_require_keyword (parser, RID_AT_THROW, "%<@throw%>");
cp_parser_consume_semicolon_at_end_of_statement (parser);
- return objc_build_throw_stmt (expr);
+ return objc_build_throw_stmt (loc, expr);
}
/* Parse an Objective-C statement. */
cp_parser_name_lookup_error (parser, name, decl, NULL, token->location);
else if (kind != 0)
{
- tree u = build_omp_clause (kind);
+ tree u = build_omp_clause (token->location, kind);
OMP_CLAUSE_DECL (u) = decl;
OMP_CLAUSE_CHAIN (u) = list;
list = u;
}
check_no_duplicate_clause (list, OMP_CLAUSE_COLLAPSE, "collapse", location);
- c = build_omp_clause (OMP_CLAUSE_COLLAPSE);
+ c = build_omp_clause (loc, OMP_CLAUSE_COLLAPSE);
OMP_CLAUSE_CHAIN (c) = list;
OMP_CLAUSE_COLLAPSE_EXPR (c) = num;
return list;
check_no_duplicate_clause (list, OMP_CLAUSE_DEFAULT, "default", location);
- c = build_omp_clause (OMP_CLAUSE_DEFAULT);
+ c = build_omp_clause (location, OMP_CLAUSE_DEFAULT);
OMP_CLAUSE_CHAIN (c) = list;
OMP_CLAUSE_DEFAULT_KIND (c) = kind;
check_no_duplicate_clause (list, OMP_CLAUSE_IF, "if", location);
- c = build_omp_clause (OMP_CLAUSE_IF);
+ c = build_omp_clause (location, OMP_CLAUSE_IF);
OMP_CLAUSE_IF_EXPR (c) = t;
OMP_CLAUSE_CHAIN (c) = list;
check_no_duplicate_clause (list, OMP_CLAUSE_NOWAIT, "nowait", location);
- c = build_omp_clause (OMP_CLAUSE_NOWAIT);
+ c = build_omp_clause (location, OMP_CLAUSE_NOWAIT);
OMP_CLAUSE_CHAIN (c) = list;
return c;
}
check_no_duplicate_clause (list, OMP_CLAUSE_NUM_THREADS,
"num_threads", location);
- c = build_omp_clause (OMP_CLAUSE_NUM_THREADS);
+ c = build_omp_clause (location, OMP_CLAUSE_NUM_THREADS);
OMP_CLAUSE_NUM_THREADS_EXPR (c) = t;
OMP_CLAUSE_CHAIN (c) = list;
check_no_duplicate_clause (list, OMP_CLAUSE_ORDERED,
"ordered", location);
- c = build_omp_clause (OMP_CLAUSE_ORDERED);
+ c = build_omp_clause (location, OMP_CLAUSE_ORDERED);
OMP_CLAUSE_CHAIN (c) = list;
return c;
}
if (!cp_parser_require (parser, CPP_OPEN_PAREN, "%<(%>"))
return list;
- c = build_omp_clause (OMP_CLAUSE_SCHEDULE);
+ c = build_omp_clause (location, OMP_CLAUSE_SCHEDULE);
if (cp_lexer_next_token_is (parser->lexer, CPP_NAME))
{
check_no_duplicate_clause (list, OMP_CLAUSE_UNTIED, "untied", location);
- c = build_omp_clause (OMP_CLAUSE_UNTIED);
+ c = build_omp_clause (location, OMP_CLAUSE_UNTIED);
OMP_CLAUSE_CHAIN (c) = list;
return c;
}
cp_parser_require_pragma_eol (parser, pragma_tok);
stmt = cp_parser_omp_structured_block (parser);
- return c_finish_omp_critical (stmt, name);
+ return c_finish_omp_critical (input_location, stmt, name);
}
/* OpenMP 2.5:
{
/* Add lastprivate (decl) clause to OMP_FOR_CLAUSES,
change it to shared (decl) in OMP_PARALLEL_CLAUSES. */
- tree l = build_omp_clause (OMP_CLAUSE_LASTPRIVATE);
+ tree l = build_omp_clause (loc, OMP_CLAUSE_LASTPRIVATE);
OMP_CLAUSE_DECL (l) = real_decl;
OMP_CLAUSE_CHAIN (l) = clauses;
CP_OMP_CLAUSE_INFO (l) = CP_OMP_CLAUSE_INFO (*c);
}
if (c == NULL)
{
- c = build_omp_clause (OMP_CLAUSE_PRIVATE);
+ c = build_omp_clause (loc, OMP_CLAUSE_PRIVATE);
OMP_CLAUSE_DECL (c) = decl;
c = finish_omp_clauses (c);
if (c)
cp_parser_omp_master (cp_parser *parser, cp_token *pragma_tok)
{
cp_parser_require_pragma_eol (parser, pragma_tok);
- return c_finish_omp_master (cp_parser_omp_structured_block (parser));
+ return c_finish_omp_master (input_location,
+ cp_parser_omp_structured_block (parser));
}
/* OpenMP 2.5:
static tree
cp_parser_omp_ordered (cp_parser *parser, cp_token *pragma_tok)
{
+ location_t loc = cp_lexer_peek_token (parser->lexer)->location;
cp_parser_require_pragma_eol (parser, pragma_tok);
- return c_finish_omp_ordered (cp_parser_omp_structured_block (parser));
+ return c_finish_omp_ordered (loc, cp_parser_omp_structured_block (parser));
}
/* OpenMP 2.5:
tree stmt, clauses, par_clause, ws_clause, block;
unsigned int mask = OMP_PARALLEL_CLAUSE_MASK;
unsigned int save;
+ location_t loc = cp_lexer_peek_token (parser->lexer)->location;
if (cp_lexer_next_token_is_keyword (parser->lexer, RID_FOR))
{
break;
case PRAGMA_OMP_PARALLEL_FOR:
- c_split_parallel_clauses (clauses, &par_clause, &ws_clause);
+ c_split_parallel_clauses (loc, clauses, &par_clause, &ws_clause);
cp_parser_omp_for_loop (parser, ws_clause, &par_clause);
break;
case PRAGMA_OMP_PARALLEL_SECTIONS:
- c_split_parallel_clauses (clauses, &par_clause, &ws_clause);
+ c_split_parallel_clauses (loc, clauses, &par_clause, &ws_clause);
stmt = cp_parser_omp_sections_scope (parser);
if (stmt)
OMP_SECTIONS_CLAUSES (stmt) = ws_clause;
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