/* C++ Parser.
Copyright (C) 2000, 2001, 2002, 2003, 2004,
- 2005, 2007, 2008 Free Software Foundation, Inc.
+ 2005, 2007, 2008, 2009 Free Software Foundation, Inc.
Written by Mark Mitchell <mark@codesourcery.com>.
This file is part of GCC.
static tree cp_parser_qualifying_entity
(cp_parser *, bool, bool, bool, bool, bool);
static tree cp_parser_postfix_expression
- (cp_parser *, bool, bool, bool);
+ (cp_parser *, bool, bool, bool, cp_id_kind *);
static tree cp_parser_postfix_open_square_expression
(cp_parser *, tree, bool);
static tree cp_parser_postfix_dot_deref_expression
static void cp_parser_pseudo_destructor_name
(cp_parser *, tree *, tree *);
static tree cp_parser_unary_expression
- (cp_parser *, bool, bool);
+ (cp_parser *, bool, bool, cp_id_kind *);
static enum tree_code cp_parser_unary_operator
(cp_token *);
static tree cp_parser_new_expression
static tree cp_parser_delete_expression
(cp_parser *);
static tree cp_parser_cast_expression
- (cp_parser *, bool, bool);
+ (cp_parser *, bool, bool, cp_id_kind *);
static tree cp_parser_binary_expression
- (cp_parser *, bool, enum cp_parser_prec);
+ (cp_parser *, bool, enum cp_parser_prec, cp_id_kind *);
static tree cp_parser_question_colon_clause
(cp_parser *, tree);
static tree cp_parser_assignment_expression
- (cp_parser *, bool);
+ (cp_parser *, bool, cp_id_kind *);
static enum tree_code cp_parser_assignment_operator_opt
(cp_parser *);
static tree cp_parser_expression
- (cp_parser *, bool);
+ (cp_parser *, bool, cp_id_kind *);
static tree cp_parser_constant_expression
(cp_parser *, bool, bool *);
static tree cp_parser_builtin_offsetof
else
{
/* Parse the parenthesized expression. */
- expr = cp_parser_expression (parser, cast_p);
+ expr = cp_parser_expression (parser, cast_p, idk);
/* Let the front end know that this expression was
enclosed in parentheses. This matters in case, for
example, the expression is of the form `A::B', since
case RID_FUNCTION_NAME:
case RID_PRETTY_FUNCTION_NAME:
case RID_C99_FUNCTION_NAME:
- /* The symbols __FUNCTION__, __PRETTY_FUNCTION__, and
- __func__ are the names of variables -- but they are
- treated specially. Therefore, they are handled here,
- rather than relying on the generic id-expression logic
- below. Grammatically, these names are id-expressions.
+ {
+ const char *name;
- Consume the token. */
- token = cp_lexer_consume_token (parser->lexer);
- /* Look up the name. */
- return finish_fname (token->u.value);
+ /* The symbols __FUNCTION__, __PRETTY_FUNCTION__, and
+ __func__ are the names of variables -- but they are
+ treated specially. Therefore, they are handled here,
+ rather than relying on the generic id-expression logic
+ below. Grammatically, these names are id-expressions.
+
+ Consume the token. */
+ token = cp_lexer_consume_token (parser->lexer);
+
+ switch (token->keyword)
+ {
+ case RID_FUNCTION_NAME:
+ name = "%<__FUNCTION__%>";
+ break;
+ case RID_PRETTY_FUNCTION_NAME:
+ name = "%<__PRETTY_FUNCTION__%>";
+ break;
+ case RID_C99_FUNCTION_NAME:
+ name = "%<__func__%>";
+ break;
+ default:
+ gcc_unreachable ();
+ }
+
+ if (cp_parser_non_integral_constant_expression (parser, name))
+ return error_mark_node;
+
+ /* Look up the name. */
+ return finish_fname (token->u.value);
+ }
case RID_VA_ARG:
{
cp_parser_require (parser, CPP_OPEN_PAREN, "%<(%>");
/* Now, parse the assignment-expression. */
expression = cp_parser_assignment_expression (parser,
- /*cast_p=*/false);
+ /*cast_p=*/false, NULL);
/* Look for the `,'. */
cp_parser_require (parser, CPP_COMMA, "%<,%>");
/* Parse the type-id. */
parser->scope = NULL_TREE;
parser->object_scope = NULL_TREE;
parser->qualifying_scope = NULL_TREE;
+ if (processing_template_decl)
+ cp_parser_parse_tentatively (parser);
type_decl
= cp_parser_class_name (parser,
/*typename_keyword_p=*/false,
/*check_dependency=*/false,
/*class_head_p=*/false,
declarator_p);
+ if (processing_template_decl
+ && ! cp_parser_parse_definitely (parser))
+ {
+ /* We couldn't find a type with this name, so just accept
+ it and check for a match at instantiation time. */
+ type_decl = cp_parser_identifier (parser);
+ return build_nt (BIT_NOT_EXPR, type_decl);
+ }
}
/* If an error occurred, assume that the name of the
destructor is the same as the name of the qualifying
static tree
cp_parser_postfix_expression (cp_parser *parser, bool address_p, bool cast_p,
- bool member_access_only_p)
+ bool member_access_only_p,
+ cp_id_kind * pidk_return)
{
cp_token *token;
enum rid keyword;
/* And the expression which is being cast. */
cp_parser_require (parser, CPP_OPEN_PAREN, "%<(%>");
- expression = cp_parser_expression (parser, /*cast_p=*/true);
+ expression = cp_parser_expression (parser, /*cast_p=*/true, & idk);
cp_parser_require (parser, CPP_CLOSE_PAREN, "%<)%>");
/* Only type conversions to integral or enumeration types
tree expression;
/* Look for an expression. */
- expression = cp_parser_expression (parser, /*cast_p=*/false);
+ expression = cp_parser_expression (parser, /*cast_p=*/false, & idk);
/* Compute its typeid. */
postfix_expression = build_typeid (expression);
/* Look for the `)' token. */
}
if (BASELINK_P (fn))
+ {
postfix_expression
= (build_new_method_call
(instance, fn, args, NULL_TREE,
? LOOKUP_NONVIRTUAL : LOOKUP_NORMAL),
/*fn_p=*/NULL,
tf_warning_or_error));
+ }
else
postfix_expression
= finish_call_expr (postfix_expression, args,
break;
default:
+ if (pidk_return != NULL)
+ * pidk_return = idk;
if (member_access_only_p)
return is_member_access? postfix_expression : error_mark_node;
else
if (for_offsetof)
index = cp_parser_constant_expression (parser, false, NULL);
else
- index = cp_parser_expression (parser, /*cast_p=*/false);
+ index = cp_parser_expression (parser, /*cast_p=*/false, NULL);
/* Look for the closing `]'. */
cp_parser_require (parser, CPP_CLOSE_SQUARE, "%<]%>");
parser->qualifying_scope = NULL_TREE;
parser->object_scope = NULL_TREE;
*idk = CP_ID_KIND_NONE;
+
/* Enter the scope corresponding to the type of the object
given by the POSTFIX_EXPRESSION. */
if (!dependent_p && TREE_TYPE (postfix_expression) != NULL_TREE)
*non_constant_p = true;
}
else
- expr = cp_parser_assignment_expression (parser, cast_p);
+ expr = cp_parser_assignment_expression (parser, cast_p, NULL);
if (fold_expr_p)
expr = fold_non_dependent_expr (expr);
/*typename_keyword_p=*/false,
/*check_dependency_p=*/true,
/*type_p=*/false,
- /*is_declaration=*/true)
+ /*is_declaration=*/false)
!= NULL_TREE);
/* Now, if we saw a nested-name-specifier, we might be doing the
second production. */
Returns a representation of the expression. */
static tree
-cp_parser_unary_expression (cp_parser *parser, bool address_p, bool cast_p)
+cp_parser_unary_expression (cp_parser *parser, bool address_p, bool cast_p,
+ cp_id_kind * pidk)
{
cp_token *token;
enum tree_code unary_operator;
cast_expression
= cp_parser_cast_expression (parser,
unary_operator == ADDR_EXPR,
- /*cast_p=*/false);
+ /*cast_p=*/false, pidk);
/* Now, build an appropriate representation. */
switch (unary_operator)
{
}
return cp_parser_postfix_expression (parser, address_p, cast_p,
- /*member_access_only_p=*/false);
+ /*member_access_only_p=*/false,
+ pidk);
}
/* Returns ERROR_MARK if TOKEN is not a unary-operator. If TOKEN is a
if (!declarator)
{
cp_token *token = cp_lexer_peek_token (parser->lexer);
- expression = cp_parser_expression (parser, /*cast_p=*/false);
+ expression = cp_parser_expression (parser, /*cast_p=*/false, NULL);
/* The standard requires that the expression have integral
type. DR 74 adds enumeration types. We believe that the
real intent is that these expressions be handled like the
case CPP_XOR:
case CPP_OR:
case CPP_OR_OR:
+ case CPP_EOF:
return false;
/* '[' may start a primary-expression in obj-c++. */
Returns a representation of the expression. */
static tree
-cp_parser_cast_expression (cp_parser *parser, bool address_p, bool cast_p)
+cp_parser_cast_expression (cp_parser *parser, bool address_p, bool cast_p,
+ cp_id_kind * pidk)
{
/* If it's a `(', then we might be looking at a cast. */
if (cp_lexer_next_token_is (parser->lexer, CPP_OPEN_PAREN))
cp_parser_parse_definitely (parser);
expr = cp_parser_cast_expression (parser,
/*address_p=*/false,
- /*cast_p=*/true);
+ /*cast_p=*/true, pidk);
/* Warn about old-style casts, if so requested. */
if (warn_old_style_cast
/* If we get here, then it's not a cast, so it must be a
unary-expression. */
- return cp_parser_unary_expression (parser, address_p, cast_p);
+ return cp_parser_unary_expression (parser, address_p, cast_p, pidk);
}
/* Parse a binary expression of the general form:
static tree
cp_parser_binary_expression (cp_parser* parser, bool cast_p,
- enum cp_parser_prec prec)
+ enum cp_parser_prec prec,
+ cp_id_kind * pidk)
{
cp_parser_expression_stack stack;
cp_parser_expression_stack_entry *sp = &stack[0];
bool overloaded_p;
/* Parse the first expression. */
- lhs = cp_parser_cast_expression (parser, /*address_p=*/false, cast_p);
+ lhs = cp_parser_cast_expression (parser, /*address_p=*/false, cast_p, pidk);
lhs_type = ERROR_MARK;
for (;;)
expr = NULL_TREE;
else
/* Parse the expression. */
- expr = cp_parser_expression (parser, /*cast_p=*/false);
+ expr = cp_parser_expression (parser, /*cast_p=*/false, NULL);
/* 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);
+ assignment_expr = cp_parser_assignment_expression (parser, /*cast_p=*/false, NULL);
/* Build the conditional-expression. */
return build_x_conditional_expr (logical_or_expr,
Returns a representation for the expression. */
static tree
-cp_parser_assignment_expression (cp_parser* parser, bool cast_p)
+cp_parser_assignment_expression (cp_parser* parser, bool cast_p,
+ cp_id_kind * pidk)
{
tree expr;
else
{
/* Parse the binary expressions (logical-or-expression). */
- expr = cp_parser_binary_expression (parser, cast_p, PREC_NOT_OPERATOR);
+ expr = cp_parser_binary_expression (parser, cast_p, PREC_NOT_OPERATOR, pidk);
/* If the next token is a `?' then we're actually looking at a
conditional-expression. */
if (cp_lexer_next_token_is (parser->lexer, CPP_QUERY))
Returns a representation of the expression. */
static tree
-cp_parser_expression (cp_parser* parser, bool cast_p)
+cp_parser_expression (cp_parser* parser, bool cast_p, cp_id_kind * pidk)
{
tree expression = NULL_TREE;
/* Parse the next assignment-expression. */
assignment_expression
- = cp_parser_assignment_expression (parser, cast_p);
+ = cp_parser_assignment_expression (parser, cast_p, pidk);
/* If this is the first assignment-expression, we can just
save it away. */
if (!expression)
For example, cp_parser_initializer_clauses uses this function to
determine whether a particular assignment-expression is in fact
constant. */
- expression = cp_parser_assignment_expression (parser, /*cast_p=*/false);
+ expression = cp_parser_assignment_expression (parser, /*cast_p=*/false, NULL);
/* Restore the old settings. */
parser->integral_constant_expression_p
= saved_integral_constant_expression_p;
offsetof-member-designator:
id-expression
| offsetof-member-designator "." id-expression
- | offsetof-member-designator "[" expression "]" */
+ | offsetof-member-designator "[" expression "]"
+ | offsetof-member-designator "->" id-expression */
static tree
cp_parser_builtin_offsetof (cp_parser *parser)
expr = cp_parser_postfix_open_square_expression (parser, expr, true);
break;
+ case CPP_DEREF:
+ /* offsetof-member-designator "->" identifier */
+ expr = grok_array_decl (expr, integer_zero_node);
+ /* FALLTHRU */
+
case CPP_DOT:
/* offsetof-member-designator "." identifier */
cp_lexer_consume_token (parser->lexer);
- expr = cp_parser_postfix_dot_deref_expression (parser, CPP_DOT, expr,
- true, &dummy,
+ expr = cp_parser_postfix_dot_deref_expression (parser, CPP_DOT,
+ expr, true, &dummy,
token->location);
break;
/* If the next token is a ';', then there is no expression
statement. */
if (cp_lexer_next_token_is_not (parser->lexer, CPP_SEMICOLON))
- statement = cp_parser_expression (parser, /*cast_p=*/false);
+ statement = cp_parser_expression (parser, /*cast_p=*/false, NULL);
/* Consume the final `;'. */
cp_parser_consume_semicolon_at_end_of_statement (parser);
else
{
/* Consume the `='. */
- cp_lexer_consume_token (parser->lexer);
+ cp_parser_require (parser, CPP_EQ, "%<=%>");
initializer = cp_parser_initializer_clause (parser, &non_constant_p);
}
if (BRACE_ENCLOSED_INITIALIZER_P (initializer))
cp_parser_abort_tentative_parse (parser);
/* Otherwise, we are looking at an expression. */
- return cp_parser_expression (parser, /*cast_p=*/false);
-}
-
-/* We check for a ) immediately followed by ; with no whitespacing
- between. This is used to issue a warning for:
-
- while (...);
-
- and:
-
- for (...);
-
- as the semicolon is probably extraneous.
-
- On parse errors, the next token might not be a ), so do nothing in
- that case. */
-
-static void
-check_empty_body (cp_parser* parser, const char* type)
-{
- cp_token *token;
- cp_token *close_paren;
- expanded_location close_loc;
- expanded_location semi_loc;
-
- close_paren = cp_lexer_peek_token (parser->lexer);
- if (close_paren->type != CPP_CLOSE_PAREN)
- return;
-
- close_loc = expand_location (close_paren->location);
- token = cp_lexer_peek_nth_token (parser->lexer, 2);
-
- if (token->type != CPP_SEMICOLON
- || (token->flags & PREV_WHITE))
- return;
-
- semi_loc = expand_location (token->location);
- if (close_loc.line == semi_loc.line
- && close_loc.column+1 == semi_loc.column)
- warning (OPT_Wempty_body,
- "suggest a space before %<;%> or explicit braces around empty "
- "body in %<%s%> statement",
- type);
+ return cp_parser_expression (parser, /*cast_p=*/false, NULL);
}
/* Parse an iteration-statement.
/* Parse the condition. */
condition = cp_parser_condition (parser);
finish_while_stmt_cond (condition, statement);
- check_empty_body (parser, "while");
/* Look for the `)'. */
cp_parser_require (parser, CPP_CLOSE_PAREN, "%<)%>");
/* Parse the dependent statement. */
/* Look for the `('. */
cp_parser_require (parser, CPP_OPEN_PAREN, "%<(%>");
/* Parse the expression. */
- expression = cp_parser_expression (parser, /*cast_p=*/false);
+ expression = cp_parser_expression (parser, /*cast_p=*/false, NULL);
/* We're done with the do-statement. */
finish_do_stmt (expression, statement);
/* Look for the `)'. */
/* If there's an expression, process it. */
if (cp_lexer_next_token_is_not (parser->lexer, CPP_CLOSE_PAREN))
- expression = cp_parser_expression (parser, /*cast_p=*/false);
+ expression = cp_parser_expression (parser, /*cast_p=*/false, NULL);
finish_for_expr (expression, statement);
- check_empty_body (parser, "for");
/* Look for the `)'. */
cp_parser_require (parser, CPP_CLOSE_PAREN, "%<)%>");
expr = cp_parser_braced_list (parser, &expr_non_constant_p);
}
else if (cp_lexer_next_token_is_not (parser->lexer, CPP_SEMICOLON))
- expr = cp_parser_expression (parser, /*cast_p=*/false);
+ expr = cp_parser_expression (parser, /*cast_p=*/false, NULL);
else
/* If the next token is a `;', then there is no
expression. */
/* Consume the '*' token. */
cp_lexer_consume_token (parser->lexer);
/* Parse the dependent expression. */
- finish_goto_stmt (cp_parser_expression (parser, /*cast_p=*/false));
+ finish_goto_stmt (cp_parser_expression (parser, /*cast_p=*/false, NULL));
}
else
finish_goto_stmt (cp_parser_identifier (parser));
/* Avoid calling cp_parser_compound_statement, so that we
don't create a new scope. Do everything else by hand. */
cp_parser_require (parser, CPP_OPEN_BRACE, "%<{%>");
+ /* If the next keyword is `__label__' we have a label declaration. */
+ while (cp_lexer_next_token_is_keyword (parser->lexer, RID_LABEL))
+ cp_parser_label_declaration (parser);
+ /* Parse an (optional) statement-seq. */
cp_parser_statement_seq_opt (parser, NULL_TREE);
cp_parser_require (parser, CPP_CLOSE_BRACE, "%<}%>");
}
(After "int (" we might be looking at a functional cast.) */
if (decl_specifiers.any_specifiers_p
&& cp_lexer_next_token_is_not (parser->lexer, CPP_OPEN_PAREN)
- && cp_lexer_next_token_is_not (parser->lexer, CPP_OPEN_BRACE))
+ && cp_lexer_next_token_is_not (parser->lexer, CPP_OPEN_BRACE)
+ && !cp_parser_error_occurred (parser))
cp_parser_commit_to_tentative_parse (parser);
/* Keep going until we hit the `;' at the end of the simple
/* Parse a class member access. */
expr = cp_parser_postfix_expression (parser, /*address_p=*/false,
/*cast_p=*/false,
- /*member_access_only_p=*/true);
+ /*member_access_only_p=*/true, NULL);
if (expr
&& expr != error_mark_node
cp_parser_abort_tentative_parse (parser);
/* Parse a full expression. */
- expr = cp_parser_expression (parser, /*cast_p=*/false);
+ expr = cp_parser_expression (parser, /*cast_p=*/false, NULL);
}
/* Go back to evaluating expressions. */
/*initialized=*/0, &attributes);
if (attributes)
cplus_decl_attributes (&type_specified, attributes, /*flags=*/0);
+
+ /* Don't give this error when parsing tentatively. This happens to
+ work because we always parse this definitively once. */
+ if (! cp_parser_uncommitted_to_tentative_parse_p (parser)
+ && type_uses_auto (type_specified))
+ {
+ error ("invalid use of %<auto%> in conversion operator");
+ return error_mark_node;
+ }
+
return type_specified;
}
tree type;
tree attributes;
bool scoped_enum_p = false;
+ bool has_underlying_type = false;
tree underlying_type = NULL_TREE;
/* Parse tentatively so that we can back up if we don't find a
scoped_enum_p = true;
}
-
+
attributes = cp_parser_attributes_opt (parser);
if (cp_lexer_next_token_is (parser->lexer, CPP_NAME))
{
cp_decl_specifier_seq type_specifiers;
+ /* At this point this is surely not elaborated type specifier. */
+ if (!cp_parser_parse_definitely (parser))
+ return NULL_TREE;
+
if (cxx_dialect == cxx98)
maybe_warn_cpp0x ("scoped enums");
/* Consume the `:'. */
cp_lexer_consume_token (parser->lexer);
+ has_underlying_type = true;
+
/* Parse the type-specifier-seq. */
cp_parser_type_specifier_seq (parser, /*is_condition=*/false,
&type_specifiers);
- if (type_specifiers.type == error_mark_node)
- return error_mark_node;
-
+
/* If that didn't work, stop. */
if (type_specifiers.type != error_mark_node)
{
if (underlying_type == error_mark_node)
underlying_type = NULL_TREE;
}
- else
- cp_parser_error (parser, "expected underlying type of enumeration");
}
/* Look for the `{' but don't consume it yet. */
if (!cp_lexer_next_token_is (parser->lexer, CPP_OPEN_BRACE))
- cp_parser_simulate_error (parser);
+ {
+ cp_parser_error (parser, "expected %<{%>");
+ if (has_underlying_type)
+ return NULL_TREE;
+ }
- if (!cp_parser_parse_definitely (parser))
+ if (!has_underlying_type && !cp_parser_parse_definitely (parser))
return NULL_TREE;
/* Issue an error message if type-definitions are forbidden here. */
if (!cp_parser_parse_definitely (parser))
abstract_declarator = NULL;
+ if (type_specifier_seq.type
+ && type_uses_auto (type_specifier_seq.type))
+ {
+ error ("invalid use of %<auto%>");
+ return error_mark_node;
+ }
+
return groktypename (&type_specifier_seq, abstract_declarator);
}
if (template_parm_p)
push_deferring_access_checks (dk_no_deferred);
default_argument
- = cp_parser_assignment_expression (parser, /*cast_p=*/false);
+ = cp_parser_assignment_expression (parser, /*cast_p=*/false, NULL);
if (template_parm_p)
pop_deferring_access_checks ();
/* Restore saved state. */
tree scope;
bool typename_p;
cp_token *token;
+ tree identifier = NULL_TREE;
/* All class-names start with an identifier. */
token = cp_lexer_peek_token (parser->lexer);
&& !cp_parser_nth_token_starts_template_argument_list_p (parser, 2))
{
cp_token *identifier_token;
- tree identifier;
bool ambiguous_p;
/* Look for the identifier. */
if (decl == error_mark_node)
cp_parser_error (parser, "expected class-name");
+ else if (identifier && !parser->scope)
+ maybe_note_name_used_in_class (identifier, decl);
return decl;
}
bool nested_name_specifier_p;
unsigned saved_num_template_parameter_lists;
bool saved_in_function_body;
+ bool saved_in_unbraced_linkage_specification_p;
tree old_scope = NULL_TREE;
tree scope = NULL_TREE;
tree bases;
/* We are not in a function body. */
saved_in_function_body = parser->in_function_body;
parser->in_function_body = false;
+ /* We are not immediately inside an extern "lang" block. */
+ saved_in_unbraced_linkage_specification_p
+ = parser->in_unbraced_linkage_specification_p;
+ parser->in_unbraced_linkage_specification_p = false;
/* Start the class. */
if (nested_name_specifier_p)
parser->in_function_body = saved_in_function_body;
parser->num_template_parameter_lists
= saved_num_template_parameter_lists;
+ parser->in_unbraced_linkage_specification_p
+ = saved_in_unbraced_linkage_specification_p;
return type;
}
if (!cp_parser_require (parser, CPP_EQ, "%<=%>"))
return error_mark_node;
/* Look for the `0' token. */
- token = cp_lexer_consume_token (parser->lexer);
+ token = cp_lexer_peek_token (parser->lexer);
+
+ if (token->type == CPP_EOF
+ || token->type == CPP_PRAGMA_EOL)
+ return error_mark_node;
+
+ cp_lexer_consume_token (parser->lexer);
/* Accept = default or = delete in c++0x mode. */
if (token->keyword == RID_DEFAULT
expression = NULL_TREE;
else
expression = cp_parser_assignment_expression (parser,
- /*cast_p=*/false);
+ /*cast_p=*/false, NULL);
return build_throw (expression);
}
/* Look for the `('. */
cp_parser_require (parser, CPP_OPEN_PAREN, "%<(%>");
/* Parse the expression. */
- expression = cp_parser_expression (parser, /*cast_p=*/false);
+ expression = cp_parser_expression (parser, /*cast_p=*/false, NULL);
/* Look for the `)'. */
cp_parser_require (parser, CPP_CLOSE_PAREN, "%<)%>");
cp_parser_simple_cast_expression (cp_parser *parser)
{
return cp_parser_cast_expression (parser, /*address_p=*/false,
- /*cast_p=*/false);
+ /*cast_p=*/false, NULL);
}
/* Parse a functional cast to TYPE. Returns an expression
cp_parser_push_lexer_for_tokens (parser, tokens);
/* Parse the assignment-expression. */
- parsed_arg = cp_parser_assignment_expression (parser, /*cast_p=*/false);
+ parsed_arg = cp_parser_assignment_expression (parser, /*cast_p=*/false, NULL);
if (!processing_template_decl)
parsed_arg = check_default_argument (TREE_VALUE (parm), parsed_arg);
looking at the unary-expression production. */
if (!expr)
expr = cp_parser_unary_expression (parser, /*address_p=*/false,
- /*cast_p=*/false);
+ /*cast_p=*/false, NULL);
if (pack_expansion_p)
/* Build a pack expansion. */
/* An Objective-C message receiver may be either (1) a type
or (2) an expression. */
cp_parser_parse_tentatively (parser);
- rcv = cp_parser_expression (parser, false);
+ rcv = cp_parser_expression (parser, false, NULL);
if (cp_parser_parse_definitely (parser))
return rcv;
maybe_unary_selector_p = false;
cp_parser_require (parser, CPP_COLON, "%<:%>");
- arg = cp_parser_assignment_expression (parser, false);
+ arg = cp_parser_assignment_expression (parser, false, NULL);
sel_args
= chainon (sel_args,
tree arg;
cp_lexer_consume_token (parser->lexer);
- arg = cp_parser_assignment_expression (parser, false);
+ arg = cp_parser_assignment_expression (parser, false, NULL);
addl_args
= chainon (addl_args,
location = cp_lexer_peek_token (parser->lexer)->location;
cp_parser_require (parser, CPP_OPEN_PAREN, "%<(%>");
- lock = cp_parser_expression (parser, false);
+ lock = cp_parser_expression (parser, false, NULL);
cp_parser_require (parser, CPP_CLOSE_PAREN, "%<)%>");
/* NB: The @synchronized block needs to be wrapped in its own STATEMENT_LIST
cp_parser_require_keyword (parser, RID_AT_THROW, "%<@throw%>");
if (cp_lexer_next_token_is_not (parser->lexer, CPP_SEMICOLON))
- expr = cp_parser_assignment_expression (parser, false);
+ expr = cp_parser_assignment_expression (parser, false, NULL);
cp_parser_consume_semicolon_at_end_of_statement (parser);
if (!cp_parser_require (parser, CPP_OPEN_PAREN, "%<(%>"))
return list;
- t = cp_parser_expression (parser, false);
+ t = cp_parser_expression (parser, false, NULL);
if (t == error_mark_node
|| !cp_parser_require (parser, CPP_CLOSE_PAREN, "%<)%>"))
cp_lexer_consume_token (parser->lexer);
token = cp_lexer_peek_token (parser->lexer);
- t = cp_parser_assignment_expression (parser, false);
+ t = cp_parser_assignment_expression (parser, false, NULL);
if (t == error_mark_node)
goto resync_fail;
cp_parser_require_pragma_eol (parser, pragma_tok);
lhs = cp_parser_unary_expression (parser, /*address_p=*/false,
- /*cast_p=*/false);
+ /*cast_p=*/false, NULL);
switch (TREE_CODE (lhs))
{
case ERROR_MARK:
}
cp_lexer_consume_token (parser->lexer);
- rhs = cp_parser_expression (parser, false);
+ rhs = cp_parser_expression (parser, false, NULL);
if (rhs == error_mark_node)
goto saw_error;
break;
static tree
cp_parser_omp_for_cond (cp_parser *parser, tree decl)
{
- tree lhs = cp_parser_cast_expression (parser, false, false), rhs;
+ tree lhs = cp_parser_cast_expression (parser, false, false, NULL), rhs;
enum tree_code op;
cp_token *token;
cp_lexer_consume_token (parser->lexer);
rhs = cp_parser_binary_expression (parser, false,
- PREC_RELATIONAL_EXPRESSION);
+ PREC_RELATIONAL_EXPRESSION, NULL);
if (rhs == error_mark_node
|| cp_lexer_next_token_is_not (parser->lexer, CPP_SEMICOLON))
{
op = (token->type == CPP_PLUS_PLUS
? PREINCREMENT_EXPR : PREDECREMENT_EXPR);
cp_lexer_consume_token (parser->lexer);
- lhs = cp_parser_cast_expression (parser, false, false);
+ lhs = cp_parser_cast_expression (parser, false, false, NULL);
if (lhs != decl)
return error_mark_node;
return build2 (op, TREE_TYPE (decl), decl, NULL_TREE);
if (op != NOP_EXPR)
{
- rhs = cp_parser_assignment_expression (parser, false);
+ rhs = cp_parser_assignment_expression (parser, false, NULL);
rhs = build2 (op, TREE_TYPE (decl), decl, rhs);
return build2 (MODIFY_EXPR, TREE_TYPE (decl), decl, rhs);
}
lhs = cp_parser_binary_expression (parser, false,
- PREC_ADDITIVE_EXPRESSION);
+ PREC_ADDITIVE_EXPRESSION, NULL);
token = cp_lexer_peek_token (parser->lexer);
decl_first = lhs == decl;
if (decl_first)
op = token->type == CPP_PLUS ? PLUS_EXPR : MINUS_EXPR;
cp_lexer_consume_token (parser->lexer);
rhs = cp_parser_binary_expression (parser, false,
- PREC_ADDITIVE_EXPRESSION);
+ PREC_ADDITIVE_EXPRESSION, NULL);
token = cp_lexer_peek_token (parser->lexer);
if (token->type == CPP_PLUS || token->type == CPP_MINUS || decl_first)
{
else
{
- tree pushed_scope;
+ tree pushed_scope, auto_node;
decl = start_decl (declarator, &type_specifiers,
- /*initialized_p=*/false, attributes,
+ SD_INITIALIZED, attributes,
/*prefix_attributes=*/NULL_TREE,
&pushed_scope);
+ auto_node = type_uses_auto (TREE_TYPE (decl));
if (cp_lexer_next_token_is_not (parser->lexer, CPP_EQ))
{
if (cp_lexer_next_token_is (parser->lexer,
cp_parser_skip_to_end_of_statement (parser);
}
else if (CLASS_TYPE_P (TREE_TYPE (decl))
- || type_dependent_expression_p (decl))
+ || type_dependent_expression_p (decl)
+ || auto_node)
{
bool is_direct_init, is_non_constant_init;
&is_direct_init,
&is_non_constant_init);
+ if (auto_node && describable_type (init))
+ {
+ TREE_TYPE (decl)
+ = do_auto_deduction (TREE_TYPE (decl), init,
+ auto_node);
+
+ if (!CLASS_TYPE_P (TREE_TYPE (decl))
+ && !type_dependent_expression_p (decl))
+ goto non_class;
+ }
+
cp_finish_decl (decl, init, !is_non_constant_init,
asm_specification,
LOOKUP_ONLYCONVERTING);
{
/* Consume '='. */
cp_lexer_consume_token (parser->lexer);
- init = cp_parser_assignment_expression (parser, false);
+ init = cp_parser_assignment_expression (parser, false, NULL);
+ non_class:
if (TREE_CODE (TREE_TYPE (decl)) == REFERENCE_TYPE)
init = error_mark_node;
else
cp_parser_parse_definitely (parser);
cp_parser_require (parser, CPP_EQ, "%<=%>");
- rhs = cp_parser_assignment_expression (parser, false);
+ rhs = cp_parser_assignment_expression (parser, false, NULL);
finish_expr_stmt (build_x_modify_expr (decl, NOP_EXPR,
rhs,
tf_warning_or_error));
{
decl = NULL;
cp_parser_abort_tentative_parse (parser);
- init = cp_parser_expression (parser, false);
+ init = cp_parser_expression (parser, false, NULL);
if (init)
{
if (TREE_CODE (init) == MODIFY_EXPR
|| CLASS_TYPE_P (TREE_TYPE (decl))))
incr = cp_parser_omp_for_incr (parser, decl);
else
- incr = cp_parser_expression (parser, false);
+ incr = cp_parser_expression (parser, false, NULL);
}
if (!cp_parser_require (parser, CPP_CLOSE_PAREN, "%<)%>"))
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