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julius |
/* Definitions for C parsing and type checking.
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Copyright (C) 1987, 1993, 1994, 1995, 1997, 1998, 1999, 2000, 2001,
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2002, 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#ifndef GCC_C_TREE_H
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#define GCC_C_TREE_H
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#include "c-common.h"
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#include "toplev.h"
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#include "diagnostic.h"
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/* struct lang_identifier is private to c-decl.c, but langhooks.c needs to
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know how big it is. This is sanity-checked in c-decl.c. */
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#define C_SIZEOF_STRUCT_LANG_IDENTIFIER \
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(sizeof (struct c_common_identifier) + 3 * sizeof (void *))
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/* Language-specific declaration information. */
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struct lang_decl GTY(())
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{
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char dummy;
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};
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/* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */
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#define C_TYPE_FIELDS_READONLY(TYPE) TREE_LANG_FLAG_1 (TYPE)
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/* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is volatile. */
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#define C_TYPE_FIELDS_VOLATILE(TYPE) TREE_LANG_FLAG_2 (TYPE)
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/* In a RECORD_TYPE or UNION_TYPE or ENUMERAL_TYPE
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nonzero if the definition of the type has already started. */
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#define C_TYPE_BEING_DEFINED(TYPE) TYPE_LANG_FLAG_0 (TYPE)
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/* In an incomplete RECORD_TYPE or UNION_TYPE, a list of variable
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declarations whose type would be completed by completing that type. */
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#define C_TYPE_INCOMPLETE_VARS(TYPE) TYPE_VFIELD (TYPE)
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/* In an IDENTIFIER_NODE, nonzero if this identifier is actually a
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keyword. C_RID_CODE (node) is then the RID_* value of the keyword,
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and C_RID_YYCODE is the token number wanted by Yacc. */
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#define C_IS_RESERVED_WORD(ID) TREE_LANG_FLAG_0 (ID)
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struct lang_type GTY(())
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{
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/* In a RECORD_TYPE, a sorted array of the fields of the type. */
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struct sorted_fields_type * GTY ((reorder ("resort_sorted_fields"))) s;
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/* In an ENUMERAL_TYPE, the min and max values. */
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tree enum_min;
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tree enum_max;
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/* In a RECORD_TYPE, information specific to Objective-C, such
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as a list of adopted protocols or a pointer to a corresponding
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@interface. See objc/objc-act.h for details. */
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tree objc_info;
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};
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/* Record whether a type or decl was written with nonconstant size.
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Note that TYPE_SIZE may have simplified to a constant. */
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#define C_TYPE_VARIABLE_SIZE(TYPE) TYPE_LANG_FLAG_1 (TYPE)
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#define C_DECL_VARIABLE_SIZE(TYPE) DECL_LANG_FLAG_0 (TYPE)
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/* Record whether a typedef for type `int' was actually `signed int'. */
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#define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP)
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/* For a FUNCTION_DECL, nonzero if it was defined without an explicit
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return type. */
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#define C_FUNCTION_IMPLICIT_INT(EXP) DECL_LANG_FLAG_1 (EXP)
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/* For a FUNCTION_DECL, nonzero if it was an implicit declaration. */
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#define C_DECL_IMPLICIT(EXP) DECL_LANG_FLAG_2 (EXP)
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/* For FUNCTION_DECLs, evaluates true if the decl is built-in but has
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been declared. */
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#define C_DECL_DECLARED_BUILTIN(EXP) \
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DECL_LANG_FLAG_3 (FUNCTION_DECL_CHECK (EXP))
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/* For FUNCTION_DECLs, evaluates true if the decl is built-in, has a
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built-in prototype and does not have a non-built-in prototype. */
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#define C_DECL_BUILTIN_PROTOTYPE(EXP) \
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DECL_LANG_FLAG_6 (FUNCTION_DECL_CHECK (EXP))
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/* Record whether a decl was declared register. This is strictly a
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front-end flag, whereas DECL_REGISTER is used for code generation;
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they may differ for structures with volatile fields. */
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#define C_DECL_REGISTER(EXP) DECL_LANG_FLAG_4 (EXP)
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/* Record whether a decl was used in an expression anywhere except an
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unevaluated operand of sizeof / typeof / alignof. This is only
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used for functions declared static but not defined, though outside
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sizeof and typeof it is set for other function decls as well. */
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#define C_DECL_USED(EXP) DECL_LANG_FLAG_5 (FUNCTION_DECL_CHECK (EXP))
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/* Record whether a label was defined in a statement expression which
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has finished and so can no longer be jumped to. */
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#define C_DECL_UNJUMPABLE_STMT_EXPR(EXP) \
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DECL_LANG_FLAG_6 (LABEL_DECL_CHECK (EXP))
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/* Record whether a label was the subject of a goto from outside the
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current level of statement expression nesting and so cannot be
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defined right now. */
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#define C_DECL_UNDEFINABLE_STMT_EXPR(EXP) \
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DECL_LANG_FLAG_7 (LABEL_DECL_CHECK (EXP))
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/* Record whether a label was defined in the scope of an identifier
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with variably modified type which has finished and so can no longer
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be jumped to. */
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#define C_DECL_UNJUMPABLE_VM(EXP) \
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DECL_LANG_FLAG_3 (LABEL_DECL_CHECK (EXP))
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/* Record whether a label was the subject of a goto from outside the
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current level of scopes of identifiers with variably modified type
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and so cannot be defined right now. */
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#define C_DECL_UNDEFINABLE_VM(EXP) \
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DECL_LANG_FLAG_5 (LABEL_DECL_CHECK (EXP))
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/* Record whether a variable has been declared threadprivate by
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#pragma omp threadprivate. */
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#define C_DECL_THREADPRIVATE_P(DECL) DECL_LANG_FLAG_3 (VAR_DECL_CHECK (DECL))
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/* Nonzero for a decl which either doesn't exist or isn't a prototype.
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N.B. Could be simplified if all built-in decls had complete prototypes
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(but this is presently difficult because some of them need FILE*). */
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#define C_DECL_ISNT_PROTOTYPE(EXP) \
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(EXP == 0 \
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|| (TYPE_ARG_TYPES (TREE_TYPE (EXP)) == 0 \
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&& !DECL_BUILT_IN (EXP)))
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/* For FUNCTION_TYPE, a hidden list of types of arguments. The same as
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TYPE_ARG_TYPES for functions with prototypes, but created for functions
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without prototypes. */
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#define TYPE_ACTUAL_ARG_TYPES(NODE) TYPE_LANG_SLOT_1 (NODE)
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/* Record parser information about an expression that is irrelevant
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for code generation alongside a tree representing its value. */
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struct c_expr
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{
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/* The value of the expression. */
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tree value;
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/* Record the original binary operator of an expression, which may
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have been changed by fold, STRING_CST for unparenthesized string
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constants, or ERROR_MARK for other expressions (including
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parenthesized expressions). */
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enum tree_code original_code;
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};
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/* A kind of type specifier. Note that this information is currently
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only used to distinguish tag definitions, tag references and typeof
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uses. */
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enum c_typespec_kind {
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/* A reserved keyword type specifier. */
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ctsk_resword,
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/* A reference to a tag, previously declared, such as "struct foo".
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This includes where the previous declaration was as a different
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kind of tag, in which case this is only valid if shadowing that
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tag in an inner scope. */
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ctsk_tagref,
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/* A reference to a tag, not previously declared in a visible
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scope. */
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ctsk_tagfirstref,
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/* A definition of a tag such as "struct foo { int a; }". */
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ctsk_tagdef,
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/* A typedef name. */
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ctsk_typedef,
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/* An ObjC-specific kind of type specifier. */
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ctsk_objc,
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/* A typeof specifier. */
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ctsk_typeof
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};
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/* A type specifier: this structure is created in the parser and
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passed to declspecs_add_type only. */
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struct c_typespec {
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/* What kind of type specifier this is. */
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enum c_typespec_kind kind;
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/* The specifier itself. */
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tree spec;
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};
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/* A storage class specifier. */
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enum c_storage_class {
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csc_none,
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csc_auto,
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csc_extern,
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csc_register,
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csc_static,
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csc_typedef
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};
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/* A type specifier keyword "void", "_Bool", "char", "int", "float",
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"double", or none of these. */
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enum c_typespec_keyword {
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cts_none,
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cts_void,
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cts_bool,
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cts_char,
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cts_int,
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cts_float,
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cts_double,
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cts_dfloat32,
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cts_dfloat64,
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cts_dfloat128
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};
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/* A sequence of declaration specifiers in C. */
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struct c_declspecs {
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/* The type specified, if a single type specifier such as a struct,
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union or enum specifier, typedef name or typeof specifies the
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whole type, or NULL_TREE if none or a keyword such as "void" or
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"char" is used. Does not include qualifiers. */
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tree type;
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/* The attributes from a typedef decl. */
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tree decl_attr;
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/* When parsing, the attributes. Outside the parser, this will be
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NULL; attributes (possibly from multiple lists) will be passed
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separately. */
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tree attrs;
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/* Any type specifier keyword used such as "int", not reflecting
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modifiers such as "short", or cts_none if none. */
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enum c_typespec_keyword typespec_word;
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/* The storage class specifier, or csc_none if none. */
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enum c_storage_class storage_class;
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/* Whether any declaration specifiers have been seen at all. */
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BOOL_BITFIELD declspecs_seen_p : 1;
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/* Whether a type specifier has been seen. */
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BOOL_BITFIELD type_seen_p : 1;
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/* Whether something other than a storage class specifier or
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attribute has been seen. This is used to warn for the
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obsolescent usage of storage class specifiers other than at the
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start of the list. (Doing this properly would require function
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specifiers to be handled separately from storage class
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specifiers.) */
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BOOL_BITFIELD non_sc_seen_p : 1;
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/* Whether the type is specified by a typedef or typeof name. */
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BOOL_BITFIELD typedef_p : 1;
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/* Whether a struct, union or enum type either had its content
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defined by a type specifier in the list or was the first visible
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declaration of its tag. */
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BOOL_BITFIELD tag_defined_p : 1;
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/* Whether the type is explicitly "signed" or specified by a typedef
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whose type is explicitly "signed". */
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256 |
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BOOL_BITFIELD explicit_signed_p : 1;
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257 |
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/* Whether the specifiers include a deprecated typedef. */
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BOOL_BITFIELD deprecated_p : 1;
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259 |
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/* Whether the type defaulted to "int" because there were no type
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260 |
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specifiers. */
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BOOL_BITFIELD default_int_p;
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262 |
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/* Whether "long" was specified. */
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263 |
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BOOL_BITFIELD long_p : 1;
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264 |
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/* Whether "long" was specified more than once. */
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BOOL_BITFIELD long_long_p : 1;
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266 |
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/* Whether "short" was specified. */
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267 |
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BOOL_BITFIELD short_p : 1;
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268 |
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/* Whether "signed" was specified. */
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269 |
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BOOL_BITFIELD signed_p : 1;
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270 |
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/* Whether "unsigned" was specified. */
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271 |
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BOOL_BITFIELD unsigned_p : 1;
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272 |
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/* Whether "complex" was specified. */
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273 |
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BOOL_BITFIELD complex_p : 1;
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274 |
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/* Whether "inline" was specified. */
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275 |
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BOOL_BITFIELD inline_p : 1;
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276 |
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/* Whether "__thread" was specified. */
|
277 |
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BOOL_BITFIELD thread_p : 1;
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278 |
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/* Whether "const" was specified. */
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279 |
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BOOL_BITFIELD const_p : 1;
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280 |
|
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/* Whether "volatile" was specified. */
|
281 |
|
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BOOL_BITFIELD volatile_p : 1;
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282 |
|
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/* Whether "restrict" was specified. */
|
283 |
|
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BOOL_BITFIELD restrict_p : 1;
|
284 |
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};
|
285 |
|
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|
286 |
|
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/* The various kinds of declarators in C. */
|
287 |
|
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enum c_declarator_kind {
|
288 |
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/* An identifier. */
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289 |
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cdk_id,
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290 |
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/* A function. */
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291 |
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cdk_function,
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/* An array. */
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293 |
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cdk_array,
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294 |
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/* A pointer. */
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295 |
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cdk_pointer,
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296 |
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/* Parenthesized declarator with nested attributes. */
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297 |
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cdk_attrs
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298 |
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};
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299 |
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|
300 |
|
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/* Information about the parameters in a function declarator. */
|
301 |
|
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struct c_arg_info {
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302 |
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/* A list of parameter decls. */
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303 |
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tree parms;
|
304 |
|
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/* A list of structure, union and enum tags defined. */
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305 |
|
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tree tags;
|
306 |
|
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/* A list of argument types to go in the FUNCTION_TYPE. */
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307 |
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tree types;
|
308 |
|
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/* A list of non-parameter decls (notably enumeration constants)
|
309 |
|
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defined with the parameters. */
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310 |
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tree others;
|
311 |
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/* A list of VLA sizes from the parameters. In a function
|
312 |
|
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definition, these are used to ensure that side-effects in sizes
|
313 |
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of arrays converted to pointers (such as a parameter int i[n++])
|
314 |
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take place; otherwise, they are ignored. */
|
315 |
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tree pending_sizes;
|
316 |
|
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/* True when these arguments had [*]. */
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317 |
|
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BOOL_BITFIELD had_vla_unspec : 1;
|
318 |
|
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};
|
319 |
|
|
|
320 |
|
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/* A declarator. */
|
321 |
|
|
struct c_declarator {
|
322 |
|
|
/* The kind of declarator. */
|
323 |
|
|
enum c_declarator_kind kind;
|
324 |
|
|
/* Except for cdk_id, the contained declarator. For cdk_id, NULL. */
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325 |
|
|
struct c_declarator *declarator;
|
326 |
|
|
location_t id_loc; /* Currently only set for cdk_id. */
|
327 |
|
|
union {
|
328 |
|
|
/* For identifiers, an IDENTIFIER_NODE or NULL_TREE if an abstract
|
329 |
|
|
declarator. */
|
330 |
|
|
tree id;
|
331 |
|
|
/* For functions. */
|
332 |
|
|
struct c_arg_info *arg_info;
|
333 |
|
|
/* For arrays. */
|
334 |
|
|
struct {
|
335 |
|
|
/* The array dimension, or NULL for [] and [*]. */
|
336 |
|
|
tree dimen;
|
337 |
|
|
/* The qualifiers inside []. */
|
338 |
|
|
int quals;
|
339 |
|
|
/* The attributes (currently ignored) inside []. */
|
340 |
|
|
tree attrs;
|
341 |
|
|
/* Whether [static] was used. */
|
342 |
|
|
BOOL_BITFIELD static_p : 1;
|
343 |
|
|
/* Whether [*] was used. */
|
344 |
|
|
BOOL_BITFIELD vla_unspec_p : 1;
|
345 |
|
|
} array;
|
346 |
|
|
/* For pointers, the qualifiers on the pointer type. */
|
347 |
|
|
int pointer_quals;
|
348 |
|
|
/* For attributes. */
|
349 |
|
|
tree attrs;
|
350 |
|
|
} u;
|
351 |
|
|
};
|
352 |
|
|
|
353 |
|
|
/* A type name. */
|
354 |
|
|
struct c_type_name {
|
355 |
|
|
/* The declaration specifiers. */
|
356 |
|
|
struct c_declspecs *specs;
|
357 |
|
|
/* The declarator. */
|
358 |
|
|
struct c_declarator *declarator;
|
359 |
|
|
};
|
360 |
|
|
|
361 |
|
|
/* A parameter. */
|
362 |
|
|
struct c_parm {
|
363 |
|
|
/* The declaration specifiers, minus any prefix attributes. */
|
364 |
|
|
struct c_declspecs *specs;
|
365 |
|
|
/* The attributes. */
|
366 |
|
|
tree attrs;
|
367 |
|
|
/* The declarator. */
|
368 |
|
|
struct c_declarator *declarator;
|
369 |
|
|
};
|
370 |
|
|
|
371 |
|
|
/* Save and restore the variables in this file and elsewhere
|
372 |
|
|
that keep track of the progress of compilation of the current function.
|
373 |
|
|
Used for nested functions. */
|
374 |
|
|
|
375 |
|
|
struct language_function GTY(())
|
376 |
|
|
{
|
377 |
|
|
struct c_language_function base;
|
378 |
|
|
tree x_break_label;
|
379 |
|
|
tree x_cont_label;
|
380 |
|
|
struct c_switch * GTY((skip)) x_switch_stack;
|
381 |
|
|
struct c_arg_info * GTY((skip)) arg_info;
|
382 |
|
|
int returns_value;
|
383 |
|
|
int returns_null;
|
384 |
|
|
int returns_abnormally;
|
385 |
|
|
int warn_about_return_type;
|
386 |
|
|
int extern_inline;
|
387 |
|
|
};
|
388 |
|
|
|
389 |
|
|
/* Save lists of labels used or defined in particular contexts.
|
390 |
|
|
Allocated on the parser obstack. */
|
391 |
|
|
|
392 |
|
|
struct c_label_list
|
393 |
|
|
{
|
394 |
|
|
/* The label at the head of the list. */
|
395 |
|
|
tree label;
|
396 |
|
|
/* The rest of the list. */
|
397 |
|
|
struct c_label_list *next;
|
398 |
|
|
};
|
399 |
|
|
|
400 |
|
|
/* Statement expression context. */
|
401 |
|
|
|
402 |
|
|
struct c_label_context_se
|
403 |
|
|
{
|
404 |
|
|
/* The labels defined at this level of nesting. */
|
405 |
|
|
struct c_label_list *labels_def;
|
406 |
|
|
/* The labels used at this level of nesting. */
|
407 |
|
|
struct c_label_list *labels_used;
|
408 |
|
|
/* The next outermost context. */
|
409 |
|
|
struct c_label_context_se *next;
|
410 |
|
|
};
|
411 |
|
|
|
412 |
|
|
/* Context of variably modified declarations. */
|
413 |
|
|
|
414 |
|
|
struct c_label_context_vm
|
415 |
|
|
{
|
416 |
|
|
/* The labels defined at this level of nesting. */
|
417 |
|
|
struct c_label_list *labels_def;
|
418 |
|
|
/* The labels used at this level of nesting. */
|
419 |
|
|
struct c_label_list *labels_used;
|
420 |
|
|
/* The scope of this context. Multiple contexts may be at the same
|
421 |
|
|
numbered scope, since each variably modified declaration starts a
|
422 |
|
|
new context. */
|
423 |
|
|
unsigned scope;
|
424 |
|
|
/* The next outermost context. */
|
425 |
|
|
struct c_label_context_vm *next;
|
426 |
|
|
};
|
427 |
|
|
|
428 |
|
|
|
429 |
|
|
/* in c-parser.c */
|
430 |
|
|
extern void c_parse_init (void);
|
431 |
|
|
|
432 |
|
|
/* in c-aux-info.c */
|
433 |
|
|
extern void gen_aux_info_record (tree, int, int, int);
|
434 |
|
|
|
435 |
|
|
/* in c-decl.c */
|
436 |
|
|
extern struct obstack parser_obstack;
|
437 |
|
|
extern tree c_break_label;
|
438 |
|
|
extern tree c_cont_label;
|
439 |
|
|
|
440 |
|
|
extern int global_bindings_p (void);
|
441 |
|
|
extern void push_scope (void);
|
442 |
|
|
extern tree pop_scope (void);
|
443 |
|
|
extern void insert_block (tree);
|
444 |
|
|
extern void c_expand_body (tree);
|
445 |
|
|
|
446 |
|
|
extern void c_init_decl_processing (void);
|
447 |
|
|
extern void c_dup_lang_specific_decl (tree);
|
448 |
|
|
extern void c_print_identifier (FILE *, tree, int);
|
449 |
|
|
extern int quals_from_declspecs (const struct c_declspecs *);
|
450 |
|
|
extern struct c_declarator *build_array_declarator (tree, struct c_declspecs *,
|
451 |
|
|
bool, bool);
|
452 |
|
|
extern tree build_enumerator (tree, tree);
|
453 |
|
|
extern tree check_for_loop_decls (void);
|
454 |
|
|
extern void mark_forward_parm_decls (void);
|
455 |
|
|
extern void declare_parm_level (void);
|
456 |
|
|
extern void undeclared_variable (tree, location_t);
|
457 |
|
|
extern tree declare_label (tree);
|
458 |
|
|
extern tree define_label (location_t, tree);
|
459 |
|
|
extern void c_maybe_initialize_eh (void);
|
460 |
|
|
extern void finish_decl (tree, tree, tree);
|
461 |
|
|
extern tree finish_enum (tree, tree, tree);
|
462 |
|
|
extern void finish_function (void);
|
463 |
|
|
extern tree finish_struct (tree, tree, tree);
|
464 |
|
|
extern struct c_arg_info *get_parm_info (bool);
|
465 |
|
|
extern tree grokfield (struct c_declarator *, struct c_declspecs *, tree);
|
466 |
|
|
extern tree groktypename (struct c_type_name *);
|
467 |
|
|
extern tree grokparm (const struct c_parm *);
|
468 |
|
|
extern tree implicitly_declare (tree);
|
469 |
|
|
extern void keep_next_level (void);
|
470 |
|
|
extern void pending_xref_error (void);
|
471 |
|
|
extern void c_push_function_context (struct function *);
|
472 |
|
|
extern void c_pop_function_context (struct function *);
|
473 |
|
|
extern void push_parm_decl (const struct c_parm *);
|
474 |
|
|
extern struct c_declarator *set_array_declarator_inner (struct c_declarator *,
|
475 |
|
|
struct c_declarator *,
|
476 |
|
|
bool);
|
477 |
|
|
extern tree builtin_function (const char *, tree, int, enum built_in_class,
|
478 |
|
|
const char *, tree);
|
479 |
|
|
extern void shadow_tag (const struct c_declspecs *);
|
480 |
|
|
extern void shadow_tag_warned (const struct c_declspecs *, int);
|
481 |
|
|
extern tree start_enum (tree);
|
482 |
|
|
extern int start_function (struct c_declspecs *, struct c_declarator *, tree);
|
483 |
|
|
extern tree start_decl (struct c_declarator *, struct c_declspecs *, bool,
|
484 |
|
|
tree);
|
485 |
|
|
extern tree start_struct (enum tree_code, tree);
|
486 |
|
|
extern void store_parm_decls (void);
|
487 |
|
|
extern void store_parm_decls_from (struct c_arg_info *);
|
488 |
|
|
extern tree xref_tag (enum tree_code, tree);
|
489 |
|
|
extern struct c_typespec parser_xref_tag (enum tree_code, tree);
|
490 |
|
|
extern int c_expand_decl (tree);
|
491 |
|
|
extern struct c_parm *build_c_parm (struct c_declspecs *, tree,
|
492 |
|
|
struct c_declarator *);
|
493 |
|
|
extern struct c_declarator *build_attrs_declarator (tree,
|
494 |
|
|
struct c_declarator *);
|
495 |
|
|
extern struct c_declarator *build_function_declarator (struct c_arg_info *,
|
496 |
|
|
struct c_declarator *);
|
497 |
|
|
extern struct c_declarator *build_id_declarator (tree);
|
498 |
|
|
extern struct c_declarator *make_pointer_declarator (struct c_declspecs *,
|
499 |
|
|
struct c_declarator *);
|
500 |
|
|
extern struct c_declspecs *build_null_declspecs (void);
|
501 |
|
|
extern struct c_declspecs *declspecs_add_qual (struct c_declspecs *, tree);
|
502 |
|
|
extern struct c_declspecs *declspecs_add_type (struct c_declspecs *,
|
503 |
|
|
struct c_typespec);
|
504 |
|
|
extern struct c_declspecs *declspecs_add_scspec (struct c_declspecs *, tree);
|
505 |
|
|
extern struct c_declspecs *declspecs_add_attrs (struct c_declspecs *, tree);
|
506 |
|
|
extern struct c_declspecs *finish_declspecs (struct c_declspecs *);
|
507 |
|
|
|
508 |
|
|
/* in c-objc-common.c */
|
509 |
|
|
extern int c_disregard_inline_limits (tree);
|
510 |
|
|
extern int c_cannot_inline_tree_fn (tree *);
|
511 |
|
|
extern bool c_objc_common_init (void);
|
512 |
|
|
extern bool c_missing_noreturn_ok_p (tree);
|
513 |
|
|
extern tree c_objc_common_truthvalue_conversion (tree expr);
|
514 |
|
|
extern bool c_warn_unused_global_decl (tree);
|
515 |
|
|
extern void c_initialize_diagnostics (diagnostic_context *);
|
516 |
|
|
extern bool c_vla_unspec_p (tree x, tree fn);
|
517 |
|
|
|
518 |
|
|
#define c_build_type_variant(TYPE, CONST_P, VOLATILE_P) \
|
519 |
|
|
c_build_qualified_type ((TYPE), \
|
520 |
|
|
((CONST_P) ? TYPE_QUAL_CONST : 0) | \
|
521 |
|
|
((VOLATILE_P) ? TYPE_QUAL_VOLATILE : 0))
|
522 |
|
|
|
523 |
|
|
/* in c-typeck.c */
|
524 |
|
|
extern int in_alignof;
|
525 |
|
|
extern int in_sizeof;
|
526 |
|
|
extern int in_typeof;
|
527 |
|
|
|
528 |
|
|
extern struct c_switch *c_switch_stack;
|
529 |
|
|
extern struct c_label_context_se *label_context_stack_se;
|
530 |
|
|
extern struct c_label_context_vm *label_context_stack_vm;
|
531 |
|
|
|
532 |
|
|
extern tree require_complete_type (tree);
|
533 |
|
|
extern int same_translation_unit_p (tree, tree);
|
534 |
|
|
extern int comptypes (tree, tree);
|
535 |
|
|
extern bool c_vla_type_p (tree);
|
536 |
|
|
extern bool c_mark_addressable (tree);
|
537 |
|
|
extern void c_incomplete_type_error (tree, tree);
|
538 |
|
|
extern tree c_type_promotes_to (tree);
|
539 |
|
|
extern struct c_expr default_function_array_conversion (struct c_expr);
|
540 |
|
|
extern tree composite_type (tree, tree);
|
541 |
|
|
extern tree build_component_ref (tree, tree);
|
542 |
|
|
extern tree build_array_ref (tree, tree);
|
543 |
|
|
extern tree build_external_ref (tree, int, location_t);
|
544 |
|
|
extern void pop_maybe_used (bool);
|
545 |
|
|
extern struct c_expr c_expr_sizeof_expr (struct c_expr);
|
546 |
|
|
extern struct c_expr c_expr_sizeof_type (struct c_type_name *);
|
547 |
|
|
extern struct c_expr parser_build_unary_op (enum tree_code, struct c_expr);
|
548 |
|
|
extern struct c_expr parser_build_binary_op (enum tree_code, struct c_expr,
|
549 |
|
|
struct c_expr);
|
550 |
|
|
extern tree build_conditional_expr (tree, tree, tree);
|
551 |
|
|
extern tree build_compound_expr (tree, tree);
|
552 |
|
|
extern tree c_cast_expr (struct c_type_name *, tree);
|
553 |
|
|
extern tree build_c_cast (tree, tree);
|
554 |
|
|
extern void store_init_value (tree, tree);
|
555 |
|
|
extern void error_init (const char *);
|
556 |
|
|
extern void pedwarn_init (const char *);
|
557 |
|
|
extern void maybe_warn_string_init (tree, struct c_expr);
|
558 |
|
|
extern void start_init (tree, tree, int);
|
559 |
|
|
extern void finish_init (void);
|
560 |
|
|
extern void really_start_incremental_init (tree);
|
561 |
|
|
extern void push_init_level (int);
|
562 |
|
|
extern struct c_expr pop_init_level (int);
|
563 |
|
|
extern void set_init_index (tree, tree);
|
564 |
|
|
extern void set_init_label (tree);
|
565 |
|
|
extern void process_init_element (struct c_expr);
|
566 |
|
|
extern tree build_compound_literal (tree, tree);
|
567 |
|
|
extern tree c_start_case (tree);
|
568 |
|
|
extern void c_finish_case (tree);
|
569 |
|
|
extern tree build_asm_expr (tree, tree, tree, tree, bool);
|
570 |
|
|
extern tree build_asm_stmt (tree, tree);
|
571 |
|
|
extern tree c_convert_parm_for_inlining (tree, tree, tree, int);
|
572 |
|
|
extern int c_types_compatible_p (tree, tree);
|
573 |
|
|
extern tree c_begin_compound_stmt (bool);
|
574 |
|
|
extern tree c_end_compound_stmt (tree, bool);
|
575 |
|
|
extern void c_finish_if_stmt (location_t, tree, tree, tree, bool);
|
576 |
|
|
extern void c_finish_loop (location_t, tree, tree, tree, tree, tree, bool);
|
577 |
|
|
extern tree c_begin_stmt_expr (void);
|
578 |
|
|
extern tree c_finish_stmt_expr (tree);
|
579 |
|
|
extern tree c_process_expr_stmt (tree);
|
580 |
|
|
extern tree c_finish_expr_stmt (tree);
|
581 |
|
|
extern tree c_finish_return (tree);
|
582 |
|
|
extern tree c_finish_bc_stmt (tree *, bool);
|
583 |
|
|
extern tree c_finish_goto_label (tree);
|
584 |
|
|
extern tree c_finish_goto_ptr (tree);
|
585 |
|
|
extern void c_begin_vm_scope (unsigned int);
|
586 |
|
|
extern void c_end_vm_scope (unsigned int);
|
587 |
|
|
extern tree c_expr_to_decl (tree, bool *, bool *, bool *);
|
588 |
|
|
extern tree c_begin_omp_parallel (void);
|
589 |
|
|
extern tree c_finish_omp_parallel (tree, tree);
|
590 |
|
|
extern tree c_finish_omp_clauses (tree);
|
591 |
|
|
|
592 |
|
|
/* Set to 0 at beginning of a function definition, set to 1 if
|
593 |
|
|
a return statement that specifies a return value is seen. */
|
594 |
|
|
|
595 |
|
|
extern int current_function_returns_value;
|
596 |
|
|
|
597 |
|
|
/* Set to 0 at beginning of a function definition, set to 1 if
|
598 |
|
|
a return statement with no argument is seen. */
|
599 |
|
|
|
600 |
|
|
extern int current_function_returns_null;
|
601 |
|
|
|
602 |
|
|
/* Set to 0 at beginning of a function definition, set to 1 if
|
603 |
|
|
a call to a noreturn function is seen. */
|
604 |
|
|
|
605 |
|
|
extern int current_function_returns_abnormally;
|
606 |
|
|
|
607 |
|
|
/* Nonzero means we are reading code that came from a system header file. */
|
608 |
|
|
|
609 |
|
|
extern int system_header_p;
|
610 |
|
|
|
611 |
|
|
/* True means global_bindings_p should return false even if the scope stack
|
612 |
|
|
says we are in file scope. */
|
613 |
|
|
|
614 |
|
|
extern bool c_override_global_bindings_to_false;
|
615 |
|
|
|
616 |
|
|
/* True means we've initialized exception handling. */
|
617 |
|
|
extern bool c_eh_initialized_p;
|
618 |
|
|
|
619 |
|
|
/* In c-decl.c */
|
620 |
|
|
extern void c_finish_incomplete_decl (tree);
|
621 |
|
|
extern void c_write_global_declarations (void);
|
622 |
|
|
|
623 |
|
|
/* In order for the format checking to accept the C frontend
|
624 |
|
|
diagnostic framework extensions, you must include this file before
|
625 |
|
|
toplev.h, not after. */
|
626 |
|
|
#if GCC_VERSION >= 4001
|
627 |
|
|
#define ATTRIBUTE_GCC_CDIAG(m, n) __attribute__ ((__format__ (GCC_DIAG_STYLE, m ,n))) ATTRIBUTE_NONNULL(m)
|
628 |
|
|
#else
|
629 |
|
|
#define ATTRIBUTE_GCC_CDIAG(m, n) ATTRIBUTE_NONNULL(m)
|
630 |
|
|
#endif
|
631 |
|
|
|
632 |
|
|
extern void pedwarn_c90 (const char *, ...) ATTRIBUTE_GCC_CDIAG(1,2);
|
633 |
|
|
extern void pedwarn_c99 (const char *, ...) ATTRIBUTE_GCC_CDIAG(1,2);
|
634 |
|
|
|
635 |
|
|
#endif /* ! GCC_C_TREE_H */
|