1 /* Definitions for C++ parsing and type checking.
2 Copyright (C) 1987, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
4 Free Software Foundation, Inc.
5 Contributed by Michael Tiemann (tiemann@cygnus.com)
7 This file is part of GCC.
9 GCC is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3, or (at your option)
14 GCC is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with GCC; see the file COPYING3. If not see
21 <http://www.gnu.org/licenses/>. */
29 #include "splay-tree.h"
33 #include "name-lookup.h"
35 /* In order for the format checking to accept the C++ front end
36 diagnostic framework extensions, you must include this file before
37 toplev.h, not after. We override the definition of GCC_DIAG_STYLE
40 #define GCC_DIAG_STYLE __gcc_cxxdiag__
41 #if GCC_VERSION >= 4001
42 #define ATTRIBUTE_GCC_CXXDIAG(m, n) __attribute__ ((__format__ (GCC_DIAG_STYLE, m, n))) ATTRIBUTE_NONNULL(m)
44 #define ATTRIBUTE_GCC_CXXDIAG(m, n) ATTRIBUTE_NONNULL(m)
46 extern void cp_cpp_error (cpp_reader *, int,
47 const char *, va_list *)
48 ATTRIBUTE_GCC_CXXDIAG(3,0);
51 In order for the format checking to accept the C++ front end diagnostic \
52 framework extensions, you must include this file before toplev.h, not after.
55 #include "diagnostic.h"
57 /* Usage of TREE_LANG_FLAG_?:
58 0: IDENTIFIER_MARKED (IDENTIFIER_NODEs)
59 NEW_EXPR_USE_GLOBAL (in NEW_EXPR).
60 DELETE_EXPR_USE_GLOBAL (in DELETE_EXPR).
61 COMPOUND_EXPR_OVERLOADED (in COMPOUND_EXPR).
62 TREE_INDIRECT_USING (in NAMESPACE_DECL).
63 CLEANUP_P (in TRY_BLOCK)
64 AGGR_INIT_VIA_CTOR_P (in AGGR_INIT_EXPR)
65 PTRMEM_OK_P (in ADDR_EXPR, OFFSET_REF)
66 PAREN_STRING_LITERAL (in STRING_CST)
67 DECL_PRETTY_FUNCTION_P (in VAR_DECL)
68 KOENIG_LOOKUP_P (in CALL_EXPR)
69 STATEMENT_LIST_NO_SCOPE (in STATEMENT_LIST).
70 EXPR_STMT_STMT_EXPR_RESULT (in EXPR_STMT)
71 STMT_EXPR_NO_SCOPE (in STMT_EXPR)
72 BIND_EXPR_TRY_BLOCK (in BIND_EXPR)
73 TYPENAME_IS_ENUM_P (in TYPENAME_TYPE)
74 REFERENCE_REF_P (in INDIRECT_EXPR)
75 QUALIFIED_NAME_IS_TEMPLATE (in SCOPE_REF)
76 OMP_FOR_GIMPLIFYING_P (in OMP_FOR)
77 BASELINK_QUALIFIED_P (in BASELINK)
78 TARGET_EXPR_IMPLICIT_P (in TARGET_EXPR)
79 TEMPLATE_PARM_PARAMETER_PACK (in TEMPLATE_PARM_INDEX)
80 TYPE_REF_IS_RVALUE (in REFERENCE_TYPE)
81 ATTR_IS_DEPENDENT (in the TREE_LIST for an attribute)
82 CONSTRUCTOR_IS_DIRECT_INIT (in CONSTRUCTOR)
83 1: IDENTIFIER_VIRTUAL_P (in IDENTIFIER_NODE)
84 TI_PENDING_TEMPLATE_FLAG.
85 TEMPLATE_PARMS_FOR_INLINE.
86 DELETE_EXPR_USE_VEC (in DELETE_EXPR).
87 (TREE_CALLS_NEW) (in _EXPR or _REF) (commented-out).
88 ICS_ELLIPSIS_FLAG (in _CONV)
89 DECL_INITIALIZED_P (in VAR_DECL)
90 TYPENAME_IS_CLASS_P (in TYPENAME_TYPE)
91 STMT_IS_FULL_EXPR_P (in _STMT)
92 TARGET_EXPR_LIST_INIT_P (in TARGET_EXPR)
93 2: IDENTIFIER_OPNAME_P (in IDENTIFIER_NODE)
94 ICS_THIS_FLAG (in _CONV)
95 DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (in VAR_DECL)
96 STATEMENT_LIST_TRY_BLOCK (in STATEMENT_LIST)
97 TYPENAME_IS_RESOLVING_P (in TYPE_NAME_TYPE)
98 3: (TREE_REFERENCE_EXPR) (in NON_LVALUE_EXPR) (commented-out).
99 ICS_BAD_FLAG (in _CONV)
100 FN_TRY_BLOCK_P (in TRY_BLOCK)
101 IDENTIFIER_CTOR_OR_DTOR_P (in IDENTIFIER_NODE)
102 BIND_EXPR_BODY_BLOCK (in BIND_EXPR)
103 DECL_NON_TRIVIALLY_INITIALIZED_P (in VAR_DECL)
104 4: TREE_HAS_CONSTRUCTOR (in INDIRECT_REF, SAVE_EXPR, CONSTRUCTOR,
106 IDENTIFIER_TYPENAME_P (in IDENTIFIER_NODE)
107 DECL_TINFO_P (in VAR_DECL)
108 5: C_IS_RESERVED_WORD (in IDENTIFIER_NODE)
109 DECL_VTABLE_OR_VTT_P (in VAR_DECL)
110 6: IDENTIFIER_REPO_CHOSEN (in IDENTIFIER_NODE)
111 DECL_CONSTRUCTION_VTABLE_P (in VAR_DECL)
112 TYPE_MARKED_P (in _TYPE)
114 Usage of TYPE_LANG_FLAG_?:
116 1: TYPE_HAS_USER_CONSTRUCTOR.
119 4: TYPE_HAS_NONTRIVIAL_DESTRUCTOR
120 5: CLASS_TYPE_P (in RECORD_TYPE and UNION_TYPE)
121 SCOPED_ENUM_P (in ENUMERAL_TYPE)
122 6: TYPE_DEPENDENT_P_VALID
124 Usage of DECL_LANG_FLAG_?:
125 0: DECL_ERROR_REPORTED (in VAR_DECL).
126 DECL_TEMPLATE_PARM_P (in PARM_DECL, CONST_DECL, TYPE_DECL, or TEMPLATE_DECL)
127 DECL_LOCAL_FUNCTION_P (in FUNCTION_DECL)
128 DECL_MUTABLE_P (in FIELD_DECL)
129 DECL_DEPENDENT_P (in USING_DECL)
130 1: C_TYPEDEF_EXPLICITLY_SIGNED (in TYPE_DECL).
131 DECL_TEMPLATE_INSTANTIATED (in a VAR_DECL or a FUNCTION_DECL)
132 DECL_MEMBER_TEMPLATE_P (in TEMPLATE_DECL)
133 FUNCTION_PARAMETER_PACK_P (in PARM_DECL)
134 2: DECL_THIS_EXTERN (in VAR_DECL or FUNCTION_DECL).
135 DECL_IMPLICIT_TYPEDEF_P (in a TYPE_DECL)
137 4: DECL_C_BIT_FIELD (in a FIELD_DECL)
138 DECL_ANON_UNION_VAR_P (in a VAR_DECL)
139 DECL_SELF_REFERENCE_P (in a TYPE_DECL)
140 DECL_INVALID_OVERRIDER_P (in a FUNCTION_DECL)
141 5: DECL_INTERFACE_KNOWN.
142 6: DECL_THIS_STATIC (in VAR_DECL or FUNCTION_DECL).
143 DECL_FIELD_IS_BASE (in FIELD_DECL)
144 7: DECL_DEAD_FOR_LOCAL (in VAR_DECL).
145 DECL_THUNK_P (in a member FUNCTION_DECL)
147 Usage of language-independent fields in a language-dependent manner:
150 This field is used by TYPENAME_TYPEs, TEMPLATE_TYPE_PARMs, and so
151 forth as a substitute for the mark bits provided in `lang_type'.
152 At present, only the six low-order bits are used.
155 For an ENUMERAL_TYPE, this is ENUM_TEMPLATE_INFO.
156 For a FUNCTION_TYPE or METHOD_TYPE, this is TYPE_RAISES_EXCEPTIONS
159 For a binfo, this is a TREE_LIST. There is an entry for each
160 virtual function declared either in BINFO or its direct and
161 indirect primary bases.
163 The BV_DELTA of each node gives the amount by which to adjust the
164 `this' pointer when calling the function. If the method is an
165 overridden version of a base class method, then it is assumed
166 that, prior to adjustment, the this pointer points to an object
169 The BV_VCALL_INDEX of each node, if non-NULL, gives the vtable
170 index of the vcall offset for this entry.
172 The BV_FN is the declaration for the virtual function itself.
175 This is an expression with POINTER_TYPE that gives the value
176 to which the vptr should be initialized. Use get_vtbl_decl_for_binfo
177 to extract the VAR_DECL for the complete vtable.
180 This field is NULL for a non-virtual function. For a virtual
181 function, it is eventually set to an INTEGER_CST indicating the
182 index in the vtable at which this function can be found. When
183 a virtual function is declared, but before it is known what
184 function is overridden, this field is the error_mark_node.
186 Temporarily, it may be set to a TREE_LIST whose TREE_VALUE is
187 the virtual function this one overrides, and whose TREE_CHAIN is
188 the old DECL_VINDEX. */
190 /* Language-specific tree checkers. */
192 #define VAR_OR_FUNCTION_DECL_CHECK(NODE) \
193 TREE_CHECK2(NODE,VAR_DECL,FUNCTION_DECL)
195 #define VAR_FUNCTION_OR_PARM_DECL_CHECK(NODE) \
196 TREE_CHECK3(NODE,VAR_DECL,FUNCTION_DECL,PARM_DECL)
198 #define VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK(NODE) \
199 TREE_CHECK4(NODE,VAR_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL)
201 #define BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK(NODE) \
202 TREE_CHECK(NODE,BOUND_TEMPLATE_TEMPLATE_PARM)
204 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
205 #define NON_THUNK_FUNCTION_CHECK(NODE) __extension__ \
206 ({ __typeof(NODE) const __t = (NODE); \
207 if (TREE_CODE (__t) != FUNCTION_DECL && \
208 TREE_CODE (__t) != TEMPLATE_DECL && __t->decl_common.lang_specific \
209 && __t->decl_common.lang_specific->decl_flags.thunk_p) \
210 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, 0); \
212 #define THUNK_FUNCTION_CHECK(NODE) __extension__ \
213 ({ __typeof (NODE) const __t = (NODE); \
214 if (TREE_CODE (__t) != FUNCTION_DECL || !__t->decl_common.lang_specific \
215 || !__t->decl_common.lang_specific->decl_flags.thunk_p) \
216 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, 0); \
219 #define NON_THUNK_FUNCTION_CHECK(NODE) (NODE)
220 #define THUNK_FUNCTION_CHECK(NODE) (NODE)
223 /* Language-dependent contents of an identifier. */
225 struct lang_identifier GTY(())
227 struct c_common_identifier c_common;
228 cxx_binding *namespace_bindings;
229 cxx_binding *bindings;
230 tree class_template_info;
234 /* In an IDENTIFIER_NODE, nonzero if this identifier is actually a
235 keyword. C_RID_CODE (node) is then the RID_* value of the keyword,
236 and C_RID_YYCODE is the token number wanted by Yacc. */
238 #define C_IS_RESERVED_WORD(ID) TREE_LANG_FLAG_5 (ID)
240 #define LANG_IDENTIFIER_CAST(NODE) \
241 ((struct lang_identifier*)IDENTIFIER_NODE_CHECK (NODE))
243 struct template_parm_index_s GTY(())
245 struct tree_common common;
251 typedef struct template_parm_index_s template_parm_index;
253 struct ptrmem_cst GTY(())
255 struct tree_common common;
256 /* This isn't used, but the middle-end expects all constants to have
261 typedef struct ptrmem_cst * ptrmem_cst_t;
263 #define IDENTIFIER_GLOBAL_VALUE(NODE) \
264 namespace_binding ((NODE), global_namespace)
265 #define SET_IDENTIFIER_GLOBAL_VALUE(NODE, VAL) \
266 set_namespace_binding ((NODE), global_namespace, (VAL))
267 #define IDENTIFIER_NAMESPACE_VALUE(NODE) \
268 namespace_binding ((NODE), current_namespace)
269 #define SET_IDENTIFIER_NAMESPACE_VALUE(NODE, VAL) \
270 set_namespace_binding ((NODE), current_namespace, (VAL))
272 #define CLEANUP_P(NODE) TREE_LANG_FLAG_0 (TRY_BLOCK_CHECK (NODE))
274 #define BIND_EXPR_TRY_BLOCK(NODE) \
275 TREE_LANG_FLAG_0 (BIND_EXPR_CHECK (NODE))
277 /* Used to mark the block around the member initializers and cleanups. */
278 #define BIND_EXPR_BODY_BLOCK(NODE) \
279 TREE_LANG_FLAG_3 (BIND_EXPR_CHECK (NODE))
280 #define FUNCTION_NEEDS_BODY_BLOCK(NODE) \
281 (DECL_CONSTRUCTOR_P (NODE) || DECL_DESTRUCTOR_P (NODE))
283 #define STATEMENT_LIST_NO_SCOPE(NODE) \
284 TREE_LANG_FLAG_0 (STATEMENT_LIST_CHECK (NODE))
285 #define STATEMENT_LIST_TRY_BLOCK(NODE) \
286 TREE_LANG_FLAG_2 (STATEMENT_LIST_CHECK (NODE))
288 /* Nonzero if this statement should be considered a full-expression,
289 i.e., if temporaries created during this statement should have
290 their destructors run at the end of this statement. */
291 #define STMT_IS_FULL_EXPR_P(NODE) TREE_LANG_FLAG_1 ((NODE))
293 /* Marks the result of a statement expression. */
294 #define EXPR_STMT_STMT_EXPR_RESULT(NODE) \
295 TREE_LANG_FLAG_0 (EXPR_STMT_CHECK (NODE))
297 /* Nonzero if this statement-expression does not have an associated scope. */
298 #define STMT_EXPR_NO_SCOPE(NODE) \
299 TREE_LANG_FLAG_0 (STMT_EXPR_CHECK (NODE))
301 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, in the usual
303 #define same_type_p(TYPE1, TYPE2) \
304 comptypes ((TYPE1), (TYPE2), COMPARE_STRICT)
306 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, ignoring
307 top-level qualifiers. */
308 #define same_type_ignoring_top_level_qualifiers_p(TYPE1, TYPE2) \
309 same_type_p (TYPE_MAIN_VARIANT (TYPE1), TYPE_MAIN_VARIANT (TYPE2))
311 /* Nonzero if we are presently building a statement tree, rather
312 than expanding each statement as we encounter it. */
313 #define building_stmt_tree() (cur_stmt_list != NULL_TREE)
315 /* Returns nonzero iff NODE is a declaration for the global function
317 #define DECL_MAIN_P(NODE) \
318 (DECL_EXTERN_C_FUNCTION_P (NODE) \
319 && DECL_NAME (NODE) != NULL_TREE \
320 && MAIN_NAME_P (DECL_NAME (NODE)) \
323 /* The overloaded FUNCTION_DECL. */
324 #define OVL_FUNCTION(NODE) \
325 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->function)
326 #define OVL_CHAIN(NODE) TREE_CHAIN (NODE)
327 /* Polymorphic access to FUNCTION and CHAIN. */
328 #define OVL_CURRENT(NODE) \
329 ((TREE_CODE (NODE) == OVERLOAD) ? OVL_FUNCTION (NODE) : (NODE))
330 #define OVL_NEXT(NODE) \
331 ((TREE_CODE (NODE) == OVERLOAD) ? TREE_CHAIN (NODE) : NULL_TREE)
332 /* If set, this was imported in a using declaration.
333 This is not to confuse with being used somewhere, which
334 is not important for this node. */
335 #define OVL_USED(NODE) TREE_USED (NODE)
337 struct tree_overload GTY(())
339 struct tree_common common;
343 /* Returns true iff NODE is a BASELINK. */
344 #define BASELINK_P(NODE) \
345 (TREE_CODE (NODE) == BASELINK)
346 /* The BINFO indicating the base from which the BASELINK_FUNCTIONS came. */
347 #define BASELINK_BINFO(NODE) \
348 (((struct tree_baselink*) BASELINK_CHECK (NODE))->binfo)
349 /* The functions referred to by the BASELINK; either a FUNCTION_DECL,
350 a TEMPLATE_DECL, an OVERLOAD, or a TEMPLATE_ID_EXPR. */
351 #define BASELINK_FUNCTIONS(NODE) \
352 (((struct tree_baselink*) BASELINK_CHECK (NODE))->functions)
353 /* The BINFO in which the search for the functions indicated by this baselink
354 began. This base is used to determine the accessibility of functions
355 selected by overload resolution. */
356 #define BASELINK_ACCESS_BINFO(NODE) \
357 (((struct tree_baselink*) BASELINK_CHECK (NODE))->access_binfo)
358 /* For a type-conversion operator, the BASELINK_OPTYPE indicates the type
359 to which the conversion should occur. This value is important if
360 the BASELINK_FUNCTIONS include a template conversion operator --
361 the BASELINK_OPTYPE can be used to determine what type the user
363 #define BASELINK_OPTYPE(NODE) \
364 (TREE_CHAIN (BASELINK_CHECK (NODE)))
365 /* Nonzero if this baselink was from a qualified lookup. */
366 #define BASELINK_QUALIFIED_P(NODE) \
367 TREE_LANG_FLAG_0 (BASELINK_CHECK (NODE))
369 struct tree_baselink GTY(())
371 struct tree_common common;
377 /* The different kinds of ids that we encounter. */
379 typedef enum cp_id_kind
381 /* Not an id at all. */
383 /* An unqualified-id that is not a template-id. */
384 CP_ID_KIND_UNQUALIFIED,
385 /* An unqualified-id that is a dependent name. */
386 CP_ID_KIND_UNQUALIFIED_DEPENDENT,
387 /* An unqualified template-id. */
388 CP_ID_KIND_TEMPLATE_ID,
389 /* A qualified-id. */
393 /* Macros for access to language-specific slots in an identifier. */
395 #define IDENTIFIER_NAMESPACE_BINDINGS(NODE) \
396 (LANG_IDENTIFIER_CAST (NODE)->namespace_bindings)
397 #define IDENTIFIER_TEMPLATE(NODE) \
398 (LANG_IDENTIFIER_CAST (NODE)->class_template_info)
400 /* The IDENTIFIER_BINDING is the innermost cxx_binding for the
401 identifier. It's PREVIOUS is the next outermost binding. Each
402 VALUE field is a DECL for the associated declaration. Thus,
403 name lookup consists simply of pulling off the node at the front
404 of the list (modulo oddities for looking up the names of types,
405 and such.) You can use SCOPE field to determine the scope
406 that bound the name. */
407 #define IDENTIFIER_BINDING(NODE) \
408 (LANG_IDENTIFIER_CAST (NODE)->bindings)
410 /* TREE_TYPE only indicates on local and class scope the current
411 type. For namespace scope, the presence of a type in any namespace
412 is indicated with global_type_node, and the real type behind must
413 be found through lookup. */
414 #define IDENTIFIER_TYPE_VALUE(NODE) identifier_type_value (NODE)
415 #define REAL_IDENTIFIER_TYPE_VALUE(NODE) TREE_TYPE (NODE)
416 #define SET_IDENTIFIER_TYPE_VALUE(NODE,TYPE) (TREE_TYPE (NODE) = (TYPE))
417 #define IDENTIFIER_HAS_TYPE_VALUE(NODE) (IDENTIFIER_TYPE_VALUE (NODE) ? 1 : 0)
419 #define IDENTIFIER_LABEL_VALUE(NODE) \
420 (LANG_IDENTIFIER_CAST (NODE)->label_value)
421 #define SET_IDENTIFIER_LABEL_VALUE(NODE, VALUE) \
422 IDENTIFIER_LABEL_VALUE (NODE) = (VALUE)
424 /* Nonzero if this identifier is used as a virtual function name somewhere
425 (optimizes searches). */
426 #define IDENTIFIER_VIRTUAL_P(NODE) TREE_LANG_FLAG_1 (NODE)
428 /* Nonzero if this identifier is the prefix for a mangled C++ operator
430 #define IDENTIFIER_OPNAME_P(NODE) TREE_LANG_FLAG_2 (NODE)
432 /* Nonzero if this identifier is the name of a type-conversion
434 #define IDENTIFIER_TYPENAME_P(NODE) \
435 TREE_LANG_FLAG_4 (NODE)
437 /* Nonzero if this identifier is the name of a constructor or
439 #define IDENTIFIER_CTOR_OR_DTOR_P(NODE) \
440 TREE_LANG_FLAG_3 (NODE)
442 /* True iff NAME is the DECL_ASSEMBLER_NAME for an entity with vague
443 linkage which the prelinker has assigned to this translation
445 #define IDENTIFIER_REPO_CHOSEN(NAME) \
446 (TREE_LANG_FLAG_6 (NAME))
448 /* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */
449 #define C_TYPE_FIELDS_READONLY(TYPE) \
450 (LANG_TYPE_CLASS_CHECK (TYPE)->fields_readonly)
452 /* The tokens stored in the default argument. */
454 #define DEFARG_TOKENS(NODE) \
455 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->tokens)
456 #define DEFARG_INSTANTIATIONS(NODE) \
457 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->instantiations)
459 struct tree_default_arg GTY (())
461 struct tree_common common;
462 struct cp_token_cache *tokens;
463 VEC(tree,gc) *instantiations;
466 /* The condition associated with the static assertion. This must be
467 an integral constant expression. */
468 #define STATIC_ASSERT_CONDITION(NODE) \
469 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->condition)
471 /* The message associated with the static assertion. This must be a
472 string constant, which will be emitted as an error message when the
473 static assert condition is false. */
474 #define STATIC_ASSERT_MESSAGE(NODE) \
475 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->message)
477 /* Source location information for a static assertion. */
478 #define STATIC_ASSERT_SOURCE_LOCATION(NODE) \
479 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->location)
481 struct tree_static_assert GTY (())
483 struct tree_common common;
489 struct tree_argument_pack_select GTY (())
491 struct tree_common common;
496 /* The different kinds of traits that we encounter. */
498 typedef enum cp_trait_kind
500 CPTK_HAS_NOTHROW_ASSIGN,
501 CPTK_HAS_NOTHROW_CONSTRUCTOR,
502 CPTK_HAS_NOTHROW_COPY,
503 CPTK_HAS_TRIVIAL_ASSIGN,
504 CPTK_HAS_TRIVIAL_CONSTRUCTOR,
505 CPTK_HAS_TRIVIAL_COPY,
506 CPTK_HAS_TRIVIAL_DESTRUCTOR,
507 CPTK_HAS_VIRTUAL_DESTRUCTOR,
511 CPTK_IS_CONVERTIBLE_TO,
519 /* The types that we are processing. */
520 #define TRAIT_EXPR_TYPE1(NODE) \
521 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type1)
523 #define TRAIT_EXPR_TYPE2(NODE) \
524 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type2)
526 /* The specific trait that we are processing. */
527 #define TRAIT_EXPR_KIND(NODE) \
528 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->kind)
530 struct tree_trait_expr GTY (())
532 struct tree_common common;
535 enum cp_trait_kind kind;
538 enum cp_tree_node_structure_enum {
549 TS_CP_ARGUMENT_PACK_SELECT,
554 /* The resulting tree type. */
555 union lang_tree_node GTY((desc ("cp_tree_node_structure (&%h)"),
556 chain_next ("(union lang_tree_node *)TREE_CHAIN (&%h.generic)")))
558 union tree_node GTY ((tag ("TS_CP_GENERIC"),
559 desc ("tree_node_structure (&%h)"))) generic;
560 struct template_parm_index_s GTY ((tag ("TS_CP_TPI"))) tpi;
561 struct ptrmem_cst GTY ((tag ("TS_CP_PTRMEM"))) ptrmem;
562 struct tree_overload GTY ((tag ("TS_CP_OVERLOAD"))) overload;
563 struct tree_baselink GTY ((tag ("TS_CP_BASELINK"))) baselink;
564 struct tree_default_arg GTY ((tag ("TS_CP_DEFAULT_ARG"))) default_arg;
565 struct lang_identifier GTY ((tag ("TS_CP_IDENTIFIER"))) identifier;
566 struct tree_static_assert GTY ((tag ("TS_CP_STATIC_ASSERT")))
568 struct tree_argument_pack_select GTY ((tag ("TS_CP_ARGUMENT_PACK_SELECT")))
569 argument_pack_select;
570 struct tree_trait_expr GTY ((tag ("TS_CP_TRAIT_EXPR")))
578 CPTI_JAVA_SHORT_TYPE,
581 CPTI_JAVA_FLOAT_TYPE,
582 CPTI_JAVA_DOUBLE_TYPE,
584 CPTI_JAVA_BOOLEAN_TYPE,
587 CPTI_VTABLE_ENTRY_TYPE,
589 CPTI_VTABLE_INDEX_TYPE,
600 CPTI_CONST_TYPE_INFO_TYPE,
601 CPTI_TYPE_INFO_PTR_TYPE,
603 CPTI_GLOBAL_DELETE_FNDECL,
606 CPTI_CTOR_IDENTIFIER,
607 CPTI_COMPLETE_CTOR_IDENTIFIER,
608 CPTI_BASE_CTOR_IDENTIFIER,
609 CPTI_DTOR_IDENTIFIER,
610 CPTI_COMPLETE_DTOR_IDENTIFIER,
611 CPTI_BASE_DTOR_IDENTIFIER,
612 CPTI_DELETING_DTOR_IDENTIFIER,
613 CPTI_DELTA_IDENTIFIER,
614 CPTI_IN_CHARGE_IDENTIFIER,
615 CPTI_VTT_PARM_IDENTIFIER,
616 CPTI_NELTS_IDENTIFIER,
617 CPTI_THIS_IDENTIFIER,
619 CPTI_VPTR_IDENTIFIER,
623 CPTI_LANG_NAME_CPLUSPLUS,
626 CPTI_EMPTY_EXCEPT_SPEC,
629 CPTI_CALL_UNEXPECTED,
630 CPTI_ATEXIT_FN_PTR_TYPE,
640 extern GTY(()) tree cp_global_trees[CPTI_MAX];
642 #define java_byte_type_node cp_global_trees[CPTI_JAVA_BYTE_TYPE]
643 #define java_short_type_node cp_global_trees[CPTI_JAVA_SHORT_TYPE]
644 #define java_int_type_node cp_global_trees[CPTI_JAVA_INT_TYPE]
645 #define java_long_type_node cp_global_trees[CPTI_JAVA_LONG_TYPE]
646 #define java_float_type_node cp_global_trees[CPTI_JAVA_FLOAT_TYPE]
647 #define java_double_type_node cp_global_trees[CPTI_JAVA_DOUBLE_TYPE]
648 #define java_char_type_node cp_global_trees[CPTI_JAVA_CHAR_TYPE]
649 #define java_boolean_type_node cp_global_trees[CPTI_JAVA_BOOLEAN_TYPE]
651 #define wchar_decl_node cp_global_trees[CPTI_WCHAR_DECL]
652 #define vtable_entry_type cp_global_trees[CPTI_VTABLE_ENTRY_TYPE]
653 /* The type used to represent an offset by which to adjust the `this'
654 pointer in pointer-to-member types. */
655 #define delta_type_node cp_global_trees[CPTI_DELTA_TYPE]
656 /* The type used to represent an index into the vtable. */
657 #define vtable_index_type cp_global_trees[CPTI_VTABLE_INDEX_TYPE]
659 #define class_type_node cp_global_trees[CPTI_CLASS_TYPE]
660 #define unknown_type_node cp_global_trees[CPTI_UNKNOWN_TYPE]
661 #define init_list_type_node cp_global_trees[CPTI_INIT_LIST_TYPE]
662 #define vtbl_type_node cp_global_trees[CPTI_VTBL_TYPE]
663 #define vtbl_ptr_type_node cp_global_trees[CPTI_VTBL_PTR_TYPE]
664 #define std_node cp_global_trees[CPTI_STD]
665 #define abi_node cp_global_trees[CPTI_ABI]
666 #define const_type_info_type_node cp_global_trees[CPTI_CONST_TYPE_INFO_TYPE]
667 #define type_info_ptr_type cp_global_trees[CPTI_TYPE_INFO_PTR_TYPE]
668 #define abort_fndecl cp_global_trees[CPTI_ABORT_FNDECL]
669 #define global_delete_fndecl cp_global_trees[CPTI_GLOBAL_DELETE_FNDECL]
670 #define current_aggr cp_global_trees[CPTI_AGGR_TAG]
672 /* We cache these tree nodes so as to call get_identifier less
675 /* The name of a constructor that takes an in-charge parameter to
676 decide whether or not to construct virtual base classes. */
677 #define ctor_identifier cp_global_trees[CPTI_CTOR_IDENTIFIER]
678 /* The name of a constructor that constructs virtual base classes. */
679 #define complete_ctor_identifier cp_global_trees[CPTI_COMPLETE_CTOR_IDENTIFIER]
680 /* The name of a constructor that does not construct virtual base classes. */
681 #define base_ctor_identifier cp_global_trees[CPTI_BASE_CTOR_IDENTIFIER]
682 /* The name of a destructor that takes an in-charge parameter to
683 decide whether or not to destroy virtual base classes and whether
684 or not to delete the object. */
685 #define dtor_identifier cp_global_trees[CPTI_DTOR_IDENTIFIER]
686 /* The name of a destructor that destroys virtual base classes. */
687 #define complete_dtor_identifier cp_global_trees[CPTI_COMPLETE_DTOR_IDENTIFIER]
688 /* The name of a destructor that does not destroy virtual base
690 #define base_dtor_identifier cp_global_trees[CPTI_BASE_DTOR_IDENTIFIER]
691 /* The name of a destructor that destroys virtual base classes, and
692 then deletes the entire object. */
693 #define deleting_dtor_identifier cp_global_trees[CPTI_DELETING_DTOR_IDENTIFIER]
694 #define delta_identifier cp_global_trees[CPTI_DELTA_IDENTIFIER]
695 #define in_charge_identifier cp_global_trees[CPTI_IN_CHARGE_IDENTIFIER]
696 /* The name of the parameter that contains a pointer to the VTT to use
697 for this subobject constructor or destructor. */
698 #define vtt_parm_identifier cp_global_trees[CPTI_VTT_PARM_IDENTIFIER]
699 #define nelts_identifier cp_global_trees[CPTI_NELTS_IDENTIFIER]
700 #define this_identifier cp_global_trees[CPTI_THIS_IDENTIFIER]
701 #define pfn_identifier cp_global_trees[CPTI_PFN_IDENTIFIER]
702 #define vptr_identifier cp_global_trees[CPTI_VPTR_IDENTIFIER]
703 /* The name of the std namespace. */
704 #define std_identifier cp_global_trees[CPTI_STD_IDENTIFIER]
705 #define lang_name_c cp_global_trees[CPTI_LANG_NAME_C]
706 #define lang_name_cplusplus cp_global_trees[CPTI_LANG_NAME_CPLUSPLUS]
707 #define lang_name_java cp_global_trees[CPTI_LANG_NAME_JAVA]
709 /* Exception specifier used for throw(). */
710 #define empty_except_spec cp_global_trees[CPTI_EMPTY_EXCEPT_SPEC]
712 /* If non-NULL, a POINTER_TYPE equivalent to (java::lang::Class*). */
713 #define jclass_node cp_global_trees[CPTI_JCLASS]
715 /* The declaration for `std::terminate'. */
716 #define terminate_node cp_global_trees[CPTI_TERMINATE]
718 /* The declaration for "__cxa_call_unexpected". */
719 #define call_unexpected_node cp_global_trees[CPTI_CALL_UNEXPECTED]
721 /* The type of the function-pointer argument to "__cxa_atexit" (or
722 "std::atexit", if "__cxa_atexit" is not being used). */
723 #define atexit_fn_ptr_type_node cp_global_trees[CPTI_ATEXIT_FN_PTR_TYPE]
725 /* A pointer to `std::atexit'. */
726 #define atexit_node cp_global_trees[CPTI_ATEXIT]
728 /* A pointer to `__dso_handle'. */
729 #define dso_handle_node cp_global_trees[CPTI_DSO_HANDLE]
731 /* The declaration of the dynamic_cast runtime. */
732 #define dynamic_cast_node cp_global_trees[CPTI_DCAST]
734 /* The type of a destructor. */
735 #define cleanup_type cp_global_trees[CPTI_CLEANUP_TYPE]
737 /* The type of the vtt parameter passed to subobject constructors and
739 #define vtt_parm_type cp_global_trees[CPTI_VTT_PARM_TYPE]
741 /* A TREE_LIST of the dynamic classes whose vtables may have to be
742 emitted in this translation unit. */
744 #define keyed_classes cp_global_trees[CPTI_KEYED_CLASSES]
746 /* Node to indicate default access. This must be distinct from the
747 access nodes in tree.h. */
749 #define access_default_node null_node
753 struct saved_scope GTY(())
755 VEC(cxx_saved_binding,gc) *old_bindings;
760 tree access_specifier;
762 VEC(tree,gc) *lang_base;
765 struct cp_binding_level *x_previous_class_level;
768 int x_processing_template_decl;
769 int x_processing_specialization;
770 BOOL_BITFIELD x_processing_explicit_instantiation : 1;
771 BOOL_BITFIELD need_pop_function_context : 1;
772 BOOL_BITFIELD skip_evaluation : 1;
774 struct stmt_tree_s x_stmt_tree;
776 struct cp_binding_level *class_bindings;
777 struct cp_binding_level *bindings;
779 struct saved_scope *prev;
782 /* The current open namespace. */
784 #define current_namespace scope_chain->old_namespace
786 /* The stack for namespaces of current declarations. */
788 #define decl_namespace_list scope_chain->decl_ns_list
790 /* IDENTIFIER_NODE: name of current class */
792 #define current_class_name scope_chain->class_name
794 /* _TYPE: the type of the current class */
796 #define current_class_type scope_chain->class_type
798 /* When parsing a class definition, the access specifier most recently
799 given by the user, or, if no access specifier was given, the
800 default value appropriate for the kind of class (i.e., struct,
803 #define current_access_specifier scope_chain->access_specifier
805 /* Pointer to the top of the language name stack. */
807 #define current_lang_base scope_chain->lang_base
808 #define current_lang_name scope_chain->lang_name
810 /* When parsing a template declaration, a TREE_LIST represents the
811 active template parameters. Each node in the list represents one
812 level of template parameters. The innermost level is first in the
813 list. The depth of each level is stored as an INTEGER_CST in the
814 TREE_PURPOSE of each node. The parameters for that level are
815 stored in the TREE_VALUE. */
817 #define current_template_parms scope_chain->template_parms
819 #define processing_template_decl scope_chain->x_processing_template_decl
820 #define processing_specialization scope_chain->x_processing_specialization
821 #define processing_explicit_instantiation scope_chain->x_processing_explicit_instantiation
823 /* The cached class binding level, from the most recently exited
824 class, or NULL if none. */
826 #define previous_class_level scope_chain->x_previous_class_level
828 /* A list of private types mentioned, for deferred access checking. */
830 extern GTY(()) struct saved_scope *scope_chain;
832 struct cxx_int_tree_map GTY(())
838 extern unsigned int cxx_int_tree_map_hash (const void *);
839 extern int cxx_int_tree_map_eq (const void *, const void *);
841 /* Global state pertinent to the current function. */
843 struct language_function GTY(())
845 struct c_language_function base;
848 tree x_current_class_ptr;
849 tree x_current_class_ref;
850 tree x_eh_spec_block;
851 tree x_in_charge_parm;
855 BOOL_BITFIELD returns_value : 1;
856 BOOL_BITFIELD returns_null : 1;
857 BOOL_BITFIELD returns_abnormally : 1;
858 BOOL_BITFIELD in_function_try_handler : 1;
859 BOOL_BITFIELD in_base_initializer : 1;
861 /* True if this function can throw an exception. */
862 BOOL_BITFIELD can_throw : 1;
864 htab_t GTY((param_is(struct named_label_entry))) x_named_labels;
865 struct cp_binding_level *bindings;
866 VEC(tree,gc) *x_local_names;
867 htab_t GTY((param_is (struct cxx_int_tree_map))) extern_decl_map;
870 /* The current C++-specific per-function global variables. */
872 #define cp_function_chain (cfun->language)
874 /* In a constructor destructor, the point at which all derived class
875 destroying/construction has been done. I.e., just before a
876 constructor returns, or before any base class destroying will be done
879 #define cdtor_label cp_function_chain->x_cdtor_label
881 /* When we're processing a member function, current_class_ptr is the
882 PARM_DECL for the `this' pointer. The current_class_ref is an
883 expression for `*this'. */
885 #define current_class_ptr \
886 (cfun ? cp_function_chain->x_current_class_ptr : NULL_TREE)
887 #define current_class_ref \
888 (cfun ? cp_function_chain->x_current_class_ref : NULL_TREE)
890 /* The EH_SPEC_BLOCK for the exception-specifiers for the current
893 #define current_eh_spec_block cp_function_chain->x_eh_spec_block
895 /* The `__in_chrg' parameter for the current function. Only used for
896 constructors and destructors. */
898 #define current_in_charge_parm cp_function_chain->x_in_charge_parm
900 /* The `__vtt_parm' parameter for the current function. Only used for
901 constructors and destructors. */
903 #define current_vtt_parm cp_function_chain->x_vtt_parm
905 /* Set to 0 at beginning of a function definition, set to 1 if
906 a return statement that specifies a return value is seen. */
908 #define current_function_returns_value cp_function_chain->returns_value
910 /* Set to 0 at beginning of a function definition, set to 1 if
911 a return statement with no argument is seen. */
913 #define current_function_returns_null cp_function_chain->returns_null
915 /* Set to 0 at beginning of a function definition, set to 1 if
916 a call to a noreturn function is seen. */
918 #define current_function_returns_abnormally \
919 cp_function_chain->returns_abnormally
921 /* Nonzero if we are processing a base initializer. Zero elsewhere. */
922 #define in_base_initializer cp_function_chain->in_base_initializer
924 #define in_function_try_handler cp_function_chain->in_function_try_handler
926 /* Expression always returned from function, or error_mark_node
927 otherwise, for use by the automatic named return value optimization. */
929 #define current_function_return_value \
930 (cp_function_chain->x_return_value)
932 /* True if NAME is the IDENTIFIER_NODE for an overloaded "operator
933 new" or "operator delete". */
934 #define NEW_DELETE_OPNAME_P(NAME) \
935 ((NAME) == ansi_opname (NEW_EXPR) \
936 || (NAME) == ansi_opname (VEC_NEW_EXPR) \
937 || (NAME) == ansi_opname (DELETE_EXPR) \
938 || (NAME) == ansi_opname (VEC_DELETE_EXPR))
940 #define ansi_opname(CODE) \
941 (operator_name_info[(int) (CODE)].identifier)
942 #define ansi_assopname(CODE) \
943 (assignment_operator_name_info[(int) (CODE)].identifier)
945 /* True if NODE is an erroneous expression. */
947 #define error_operand_p(NODE) \
948 ((NODE) == error_mark_node \
949 || ((NODE) && TREE_TYPE ((NODE)) == error_mark_node))
951 /* TRUE if a tree code represents a statement. */
952 extern bool statement_code_p[MAX_TREE_CODES];
954 #define STATEMENT_CODE_P(CODE) statement_code_p[(int) (CODE)]
956 enum languages { lang_c, lang_cplusplus, lang_java };
958 /* Macros to make error reporting functions' lives easier. */
959 #define TYPE_IDENTIFIER(NODE) (DECL_NAME (TYPE_NAME (NODE)))
960 #define TYPE_LINKAGE_IDENTIFIER(NODE) \
961 (TYPE_IDENTIFIER (TYPE_MAIN_VARIANT (NODE)))
962 #define TYPE_NAME_STRING(NODE) (IDENTIFIER_POINTER (TYPE_IDENTIFIER (NODE)))
963 #define TYPE_NAME_LENGTH(NODE) (IDENTIFIER_LENGTH (TYPE_IDENTIFIER (NODE)))
965 /* Nonzero if NODE has no name for linkage purposes. */
966 #define TYPE_ANONYMOUS_P(NODE) \
967 (TAGGED_TYPE_P (NODE) && ANON_AGGRNAME_P (TYPE_LINKAGE_IDENTIFIER (NODE)))
969 /* The _DECL for this _TYPE. */
970 #define TYPE_MAIN_DECL(NODE) (TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE)))
972 /* Nonzero if T is a class (or struct or union) type. Also nonzero
973 for template type parameters, typename types, and instantiated
974 template template parameters. Keep these checks in ascending code
976 #define MAYBE_CLASS_TYPE_P(T) \
977 (TREE_CODE (T) == TEMPLATE_TYPE_PARM \
978 || TREE_CODE (T) == TYPENAME_TYPE \
979 || TREE_CODE (T) == TYPEOF_TYPE \
980 || TREE_CODE (T) == BOUND_TEMPLATE_TEMPLATE_PARM \
981 || TREE_CODE (T) == DECLTYPE_TYPE \
984 /* Set CLASS_TYPE_P for T to VAL. T must be a class, struct, or
986 #define SET_CLASS_TYPE_P(T, VAL) \
987 (TYPE_LANG_FLAG_5 (T) = (VAL))
989 /* Nonzero if T is a class type. Zero for template type parameters,
990 typename types, and so forth. */
991 #define CLASS_TYPE_P(T) \
992 (RECORD_OR_UNION_CODE_P (TREE_CODE (T)) && TYPE_LANG_FLAG_5 (T))
994 /* Nonzero if T is a class type but not an union. */
995 #define NON_UNION_CLASS_TYPE_P(T) \
996 (CLASS_TYPE_P (T) && TREE_CODE (T) != UNION_TYPE)
998 /* Keep these checks in ascending code order. */
999 #define RECORD_OR_UNION_CODE_P(T) \
1000 ((T) == RECORD_TYPE || (T) == UNION_TYPE)
1001 #define TAGGED_TYPE_P(T) \
1002 (CLASS_TYPE_P (T) || TREE_CODE (T) == ENUMERAL_TYPE)
1003 #define IS_OVERLOAD_TYPE(T) TAGGED_TYPE_P (T)
1005 /* True if this a "Java" type, defined in 'extern "Java"'. */
1006 #define TYPE_FOR_JAVA(NODE) TYPE_LANG_FLAG_3 (NODE)
1008 /* True if this type is dependent. This predicate is only valid if
1009 TYPE_DEPENDENT_P_VALID is true. */
1010 #define TYPE_DEPENDENT_P(NODE) TYPE_LANG_FLAG_0 (NODE)
1012 /* True if dependent_type_p has been called for this type, with the
1013 result that TYPE_DEPENDENT_P is valid. */
1014 #define TYPE_DEPENDENT_P_VALID(NODE) TYPE_LANG_FLAG_6(NODE)
1016 /* Nonzero if this type is const-qualified. */
1017 #define CP_TYPE_CONST_P(NODE) \
1018 ((cp_type_quals (NODE) & TYPE_QUAL_CONST) != 0)
1020 /* Nonzero if this type is volatile-qualified. */
1021 #define CP_TYPE_VOLATILE_P(NODE) \
1022 ((cp_type_quals (NODE) & TYPE_QUAL_VOLATILE) != 0)
1024 /* Nonzero if this type is restrict-qualified. */
1025 #define CP_TYPE_RESTRICT_P(NODE) \
1026 ((cp_type_quals (NODE) & TYPE_QUAL_RESTRICT) != 0)
1028 /* Nonzero if this type is const-qualified, but not
1029 volatile-qualified. Other qualifiers are ignored. This macro is
1030 used to test whether or not it is OK to bind an rvalue to a
1032 #define CP_TYPE_CONST_NON_VOLATILE_P(NODE) \
1033 ((cp_type_quals (NODE) & (TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE)) \
1036 #define FUNCTION_ARG_CHAIN(NODE) \
1037 TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (NODE)))
1039 /* Given a FUNCTION_DECL, returns the first TREE_LIST out of TYPE_ARG_TYPES
1040 which refers to a user-written parameter. */
1041 #define FUNCTION_FIRST_USER_PARMTYPE(NODE) \
1042 skip_artificial_parms_for ((NODE), TYPE_ARG_TYPES (TREE_TYPE (NODE)))
1044 /* Similarly, but for DECL_ARGUMENTS. */
1045 #define FUNCTION_FIRST_USER_PARM(NODE) \
1046 skip_artificial_parms_for ((NODE), DECL_ARGUMENTS (NODE))
1048 /* Nonzero iff TYPE is derived from PARENT. Ignores accessibility and
1049 ambiguity issues. */
1050 #define DERIVED_FROM_P(PARENT, TYPE) \
1051 (lookup_base ((TYPE), (PARENT), ba_any, NULL) != NULL_TREE)
1052 /* Nonzero iff TYPE is uniquely derived from PARENT. Ignores
1054 #define UNIQUELY_DERIVED_FROM_P(PARENT, TYPE) \
1055 (lookup_base ((TYPE), (PARENT), ba_unique | ba_quiet, NULL) != NULL_TREE)
1056 /* Nonzero iff TYPE is publicly & uniquely derived from PARENT. */
1057 #define PUBLICLY_UNIQUELY_DERIVED_P(PARENT, TYPE) \
1058 (lookup_base ((TYPE), (PARENT), ba_ignore_scope | ba_check | ba_quiet, \
1061 /* Gives the visibility specification for a class type. */
1062 #define CLASSTYPE_VISIBILITY(TYPE) \
1063 DECL_VISIBILITY (TYPE_NAME (TYPE))
1064 #define CLASSTYPE_VISIBILITY_SPECIFIED(TYPE) \
1065 DECL_VISIBILITY_SPECIFIED (TYPE_NAME (TYPE))
1067 typedef struct tree_pair_s GTY (())
1072 typedef tree_pair_s *tree_pair_p;
1073 DEF_VEC_O (tree_pair_s);
1074 DEF_VEC_ALLOC_O (tree_pair_s,gc);
1076 /* This is a few header flags for 'struct lang_type'. Actually,
1077 all but the first are used only for lang_type_class; they
1078 are put in this structure to save space. */
1079 struct lang_type_header GTY(())
1081 BOOL_BITFIELD is_lang_type_class : 1;
1083 BOOL_BITFIELD has_type_conversion : 1;
1084 BOOL_BITFIELD has_init_ref : 1;
1085 BOOL_BITFIELD has_default_ctor : 1;
1086 BOOL_BITFIELD const_needs_init : 1;
1087 BOOL_BITFIELD ref_needs_init : 1;
1088 BOOL_BITFIELD has_const_assign_ref : 1;
1090 BOOL_BITFIELD spare : 1;
1093 /* This structure provides additional information above and beyond
1094 what is provide in the ordinary tree_type. In the past, we used it
1095 for the types of class types, template parameters types, typename
1096 types, and so forth. However, there can be many (tens to hundreds
1097 of thousands) of template parameter types in a compilation, and
1098 there's no need for this additional information in that case.
1099 Therefore, we now use this data structure only for class types.
1101 In the past, it was thought that there would be relatively few
1102 class types. However, in the presence of heavy use of templates,
1103 many (i.e., thousands) of classes can easily be generated.
1104 Therefore, we should endeavor to keep the size of this structure to
1106 struct lang_type_class GTY(())
1108 struct lang_type_header h;
1110 unsigned char align;
1112 unsigned has_mutable : 1;
1113 unsigned com_interface : 1;
1114 unsigned non_pod_class : 1;
1115 unsigned nearly_empty_p : 1;
1116 unsigned user_align : 1;
1117 unsigned has_assign_ref : 1;
1118 unsigned has_new : 1;
1119 unsigned has_array_new : 1;
1121 unsigned gets_delete : 2;
1122 unsigned interface_only : 1;
1123 unsigned interface_unknown : 1;
1124 unsigned contains_empty_class_p : 1;
1125 unsigned anon_aggr : 1;
1126 unsigned non_zero_init : 1;
1127 unsigned empty_p : 1;
1129 unsigned vec_new_uses_cookie : 1;
1130 unsigned declared_class : 1;
1131 unsigned diamond_shaped : 1;
1132 unsigned repeated_base : 1;
1133 unsigned being_defined : 1;
1134 unsigned java_interface : 1;
1135 unsigned debug_requested : 1;
1136 unsigned fields_readonly : 1;
1138 unsigned use_template : 2;
1139 unsigned ptrmemfunc_flag : 1;
1140 unsigned was_anonymous : 1;
1141 unsigned lazy_default_ctor : 1;
1142 unsigned lazy_copy_ctor : 1;
1143 unsigned lazy_assignment_op : 1;
1144 unsigned lazy_destructor : 1;
1146 unsigned has_const_init_ref : 1;
1147 unsigned has_complex_init_ref : 1;
1148 unsigned has_complex_assign_ref : 1;
1149 unsigned non_aggregate : 1;
1150 unsigned has_complex_dflt : 1;
1151 unsigned has_list_ctor : 1;
1153 /* When adding a flag here, consider whether or not it ought to
1154 apply to a template instance if it applies to the template. If
1155 so, make sure to copy it in instantiate_class_template! */
1157 /* There are some bits left to fill out a 32-bit word. Keep track
1158 of this by updating the size of this bitfield whenever you add or
1160 unsigned dummy : 10;
1163 VEC(tree_pair_s,gc) *vcall_indices;
1166 VEC(tree,gc) *vbases;
1167 binding_table nested_udts;
1169 VEC(tree,gc) *pure_virtuals;
1170 tree friend_classes;
1171 VEC(tree,gc) * GTY((reorder ("resort_type_method_vec"))) methods;
1175 tree befriending_classes;
1176 /* In a RECORD_TYPE, information specific to Objective-C++, such
1177 as a list of adopted protocols or a pointer to a corresponding
1178 @interface. See objc/objc-act.h for details. */
1182 struct lang_type_ptrmem GTY(())
1184 struct lang_type_header h;
1188 struct lang_type GTY(())
1192 struct lang_type_header GTY((skip (""))) h;
1193 struct lang_type_class GTY((tag ("1"))) c;
1194 struct lang_type_ptrmem GTY((tag ("0"))) ptrmem;
1195 } GTY((desc ("%h.h.is_lang_type_class"))) u;
1198 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1200 #define LANG_TYPE_CLASS_CHECK(NODE) __extension__ \
1201 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1202 if (! lt->u.h.is_lang_type_class) \
1203 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1206 #define LANG_TYPE_PTRMEM_CHECK(NODE) __extension__ \
1207 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1208 if (lt->u.h.is_lang_type_class) \
1209 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1214 #define LANG_TYPE_CLASS_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.c)
1215 #define LANG_TYPE_PTRMEM_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.ptrmem)
1217 #endif /* ENABLE_TREE_CHECKING */
1219 /* Fields used for storing information before the class is defined.
1220 After the class is defined, these fields hold other information. */
1222 /* VEC(tree) of friends which were defined inline in this class
1224 #define CLASSTYPE_INLINE_FRIENDS(NODE) CLASSTYPE_PURE_VIRTUALS (NODE)
1226 /* Nonzero for _CLASSTYPE means that operator delete is defined. */
1227 #define TYPE_GETS_DELETE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->gets_delete)
1228 #define TYPE_GETS_REG_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 1)
1230 /* Nonzero if `new NODE[x]' should cause the allocation of extra
1231 storage to indicate how many array elements are in use. */
1232 #define TYPE_VEC_NEW_USES_COOKIE(NODE) \
1233 (CLASS_TYPE_P (NODE) \
1234 && LANG_TYPE_CLASS_CHECK (NODE)->vec_new_uses_cookie)
1236 /* Nonzero means that this _CLASSTYPE node defines ways of converting
1237 itself to other types. */
1238 #define TYPE_HAS_CONVERSION(NODE) \
1239 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_type_conversion)
1241 /* Nonzero means that NODE (a class type) has a default constructor --
1242 but that it has not yet been declared. */
1243 #define CLASSTYPE_LAZY_DEFAULT_CTOR(NODE) \
1244 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_default_ctor)
1246 /* Nonzero means that NODE (a class type) has a copy constructor --
1247 but that it has not yet been declared. */
1248 #define CLASSTYPE_LAZY_COPY_CTOR(NODE) \
1249 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_ctor)
1251 /* Nonzero means that NODE (a class type) has an assignment operator
1252 -- but that it has not yet been declared. */
1253 #define CLASSTYPE_LAZY_ASSIGNMENT_OP(NODE) \
1254 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_assignment_op)
1256 /* Nonzero means that NODE (a class type) has a destructor -- but that
1257 it has not yet been declared. */
1258 #define CLASSTYPE_LAZY_DESTRUCTOR(NODE) \
1259 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_destructor)
1261 /* Nonzero means that this _CLASSTYPE node overloads operator=(X&). */
1262 #define TYPE_HAS_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_assign_ref)
1264 /* True iff the class type NODE has an "operator =" whose parameter
1265 has a parameter of type "const X&". */
1266 #define TYPE_HAS_CONST_ASSIGN_REF(NODE) \
1267 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_const_assign_ref)
1269 /* Nonzero means that this _CLASSTYPE node has an X(X&) constructor. */
1270 #define TYPE_HAS_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->h.has_init_ref)
1271 #define TYPE_HAS_CONST_INIT_REF(NODE) \
1272 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_init_ref)
1274 /* Nonzero if this class has an X(initializer_list<T>) constructor. */
1275 #define TYPE_HAS_LIST_CTOR(NODE) \
1276 (LANG_TYPE_CLASS_CHECK (NODE)->has_list_ctor)
1278 /* Nonzero if this class defines an overloaded operator new. (An
1279 operator new [] doesn't count.) */
1280 #define TYPE_HAS_NEW_OPERATOR(NODE) \
1281 (LANG_TYPE_CLASS_CHECK (NODE)->has_new)
1283 /* Nonzero if this class defines an overloaded operator new[]. */
1284 #define TYPE_HAS_ARRAY_NEW_OPERATOR(NODE) \
1285 (LANG_TYPE_CLASS_CHECK (NODE)->has_array_new)
1287 /* Nonzero means that this type is being defined. I.e., the left brace
1288 starting the definition of this type has been seen. */
1289 #define TYPE_BEING_DEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->being_defined)
1291 /* Mark bits for repeated base checks. */
1292 #define TYPE_MARKED_P(NODE) TREE_LANG_FLAG_6 (TYPE_CHECK (NODE))
1294 /* Nonzero if the class NODE has multiple paths to the same (virtual)
1296 #define CLASSTYPE_DIAMOND_SHAPED_P(NODE) \
1297 (LANG_TYPE_CLASS_CHECK(NODE)->diamond_shaped)
1299 /* Nonzero if the class NODE has multiple instances of the same base
1301 #define CLASSTYPE_REPEATED_BASE_P(NODE) \
1302 (LANG_TYPE_CLASS_CHECK(NODE)->repeated_base)
1304 /* The member function with which the vtable will be emitted:
1305 the first noninline non-pure-virtual member function. NULL_TREE
1306 if there is no key function or if this is a class template */
1307 #define CLASSTYPE_KEY_METHOD(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->key_method)
1309 /* Vector member functions defined in this class. Each element is
1310 either a FUNCTION_DECL, a TEMPLATE_DECL, or an OVERLOAD. All
1311 functions with the same name end up in the same slot. The first
1312 two elements are for constructors, and destructors, respectively.
1313 All template conversion operators to innermost template dependent
1314 types are overloaded on the next slot, if they exist. Note, the
1315 names for these functions will not all be the same. The
1316 non-template conversion operators & templated conversions to
1317 non-innermost template types are next, followed by ordinary member
1318 functions. There may be empty entries at the end of the vector.
1319 The conversion operators are unsorted. The ordinary member
1320 functions are sorted, once the class is complete. */
1321 #define CLASSTYPE_METHOD_VEC(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->methods)
1323 /* For class templates, this is a TREE_LIST of all member data,
1324 functions, types, and friends in the order of declaration.
1325 The TREE_PURPOSE of each TREE_LIST is NULL_TREE for a friend,
1326 and the RECORD_TYPE for the class template otherwise. */
1327 #define CLASSTYPE_DECL_LIST(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->decl_list)
1329 /* The slot in the CLASSTYPE_METHOD_VEC where constructors go. */
1330 #define CLASSTYPE_CONSTRUCTOR_SLOT 0
1332 /* The slot in the CLASSTYPE_METHOD_VEC where destructors go. */
1333 #define CLASSTYPE_DESTRUCTOR_SLOT 1
1335 /* The first slot in the CLASSTYPE_METHOD_VEC where conversion
1336 operators can appear. */
1337 #define CLASSTYPE_FIRST_CONVERSION_SLOT 2
1339 /* A FUNCTION_DECL or OVERLOAD for the constructors for NODE. These
1340 are the constructors that take an in-charge parameter. */
1341 #define CLASSTYPE_CONSTRUCTORS(NODE) \
1342 (VEC_index (tree, CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_CONSTRUCTOR_SLOT))
1344 /* A FUNCTION_DECL for the destructor for NODE. These are the
1345 destructors that take an in-charge parameter. If
1346 CLASSTYPE_LAZY_DESTRUCTOR is true, then this entry will be NULL
1347 until the destructor is created with lazily_declare_fn. */
1348 #define CLASSTYPE_DESTRUCTORS(NODE) \
1349 (CLASSTYPE_METHOD_VEC (NODE) \
1350 ? VEC_index (tree, CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_DESTRUCTOR_SLOT) \
1353 /* A dictionary of the nested user-defined-types (class-types, or enums)
1354 found within this class. This table includes nested member class
1356 #define CLASSTYPE_NESTED_UTDS(NODE) \
1357 (LANG_TYPE_CLASS_CHECK (NODE)->nested_udts)
1359 /* Nonzero if NODE has a primary base class, i.e., a base class with
1360 which it shares the virtual function table pointer. */
1361 #define CLASSTYPE_HAS_PRIMARY_BASE_P(NODE) \
1362 (CLASSTYPE_PRIMARY_BINFO (NODE) != NULL_TREE)
1364 /* If non-NULL, this is the binfo for the primary base class, i.e.,
1365 the base class which contains the virtual function table pointer
1367 #define CLASSTYPE_PRIMARY_BINFO(NODE) \
1368 (LANG_TYPE_CLASS_CHECK (NODE)->primary_base)
1370 /* A vector of BINFOs for the direct and indirect virtual base classes
1371 that this type uses in a post-order depth-first left-to-right
1372 order. (In other words, these bases appear in the order that they
1373 should be initialized.) */
1374 #define CLASSTYPE_VBASECLASSES(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->vbases)
1376 /* The type corresponding to NODE when NODE is used as a base class,
1377 i.e., NODE without virtual base classes. */
1379 #define CLASSTYPE_AS_BASE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->as_base)
1381 /* True iff NODE is the CLASSTYPE_AS_BASE version of some type. */
1383 #define IS_FAKE_BASE_TYPE(NODE) \
1384 (TREE_CODE (NODE) == RECORD_TYPE \
1385 && TYPE_CONTEXT (NODE) && CLASS_TYPE_P (TYPE_CONTEXT (NODE)) \
1386 && CLASSTYPE_AS_BASE (TYPE_CONTEXT (NODE)) == (NODE))
1388 /* These are the size and alignment of the type without its virtual
1389 base classes, for when we use this type as a base itself. */
1390 #define CLASSTYPE_SIZE(NODE) TYPE_SIZE (CLASSTYPE_AS_BASE (NODE))
1391 #define CLASSTYPE_SIZE_UNIT(NODE) TYPE_SIZE_UNIT (CLASSTYPE_AS_BASE (NODE))
1392 #define CLASSTYPE_ALIGN(NODE) TYPE_ALIGN (CLASSTYPE_AS_BASE (NODE))
1393 #define CLASSTYPE_USER_ALIGN(NODE) TYPE_USER_ALIGN (CLASSTYPE_AS_BASE (NODE))
1395 /* The alignment of NODE, without its virtual bases, in bytes. */
1396 #define CLASSTYPE_ALIGN_UNIT(NODE) \
1397 (CLASSTYPE_ALIGN (NODE) / BITS_PER_UNIT)
1399 /* True if this a Java interface type, declared with
1400 '__attribute__ ((java_interface))'. */
1401 #define TYPE_JAVA_INTERFACE(NODE) \
1402 (LANG_TYPE_CLASS_CHECK (NODE)->java_interface)
1404 /* A VEC(tree) of virtual functions which cannot be inherited by
1405 derived classes. When deriving from this type, the derived
1406 class must provide its own definition for each of these functions. */
1407 #define CLASSTYPE_PURE_VIRTUALS(NODE) \
1408 (LANG_TYPE_CLASS_CHECK (NODE)->pure_virtuals)
1410 /* Nonzero means that this type has an X() constructor. */
1411 #define TYPE_HAS_DEFAULT_CONSTRUCTOR(NODE) \
1412 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_default_ctor)
1414 /* Nonzero means that this type contains a mutable member. */
1415 #define CLASSTYPE_HAS_MUTABLE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_mutable)
1416 #define TYPE_HAS_MUTABLE_P(NODE) (cp_has_mutable_p (NODE))
1418 /* Nonzero means that this class type is a non-POD class. */
1419 #define CLASSTYPE_NON_POD_P(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->non_pod_class)
1421 /* Nonzero means that this class contains pod types whose default
1422 initialization is not a zero initialization (namely, pointers to
1424 #define CLASSTYPE_NON_ZERO_INIT_P(NODE) \
1425 (LANG_TYPE_CLASS_CHECK (NODE)->non_zero_init)
1427 /* Nonzero if this class is "empty" in the sense of the C++ ABI. */
1428 #define CLASSTYPE_EMPTY_P(NODE) \
1429 (LANG_TYPE_CLASS_CHECK (NODE)->empty_p)
1431 /* Nonzero if this class is "nearly empty", i.e., contains only a
1432 virtual function table pointer. */
1433 #define CLASSTYPE_NEARLY_EMPTY_P(NODE) \
1434 (LANG_TYPE_CLASS_CHECK (NODE)->nearly_empty_p)
1436 /* Nonzero if this class contains an empty subobject. */
1437 #define CLASSTYPE_CONTAINS_EMPTY_CLASS_P(NODE) \
1438 (LANG_TYPE_CLASS_CHECK (NODE)->contains_empty_class_p)
1440 /* A list of class types of which this type is a friend. The
1441 TREE_VALUE is normally a TYPE, but will be a TEMPLATE_DECL in the
1442 case of a template friend. */
1443 #define CLASSTYPE_FRIEND_CLASSES(NODE) \
1444 (LANG_TYPE_CLASS_CHECK (NODE)->friend_classes)
1446 /* A list of the classes which grant friendship to this class. */
1447 #define CLASSTYPE_BEFRIENDING_CLASSES(NODE) \
1448 (LANG_TYPE_CLASS_CHECK (NODE)->befriending_classes)
1450 /* Say whether this node was declared as a "class" or a "struct". */
1451 #define CLASSTYPE_DECLARED_CLASS(NODE) \
1452 (LANG_TYPE_CLASS_CHECK (NODE)->declared_class)
1454 /* Nonzero if this class has const members
1455 which have no specified initialization. */
1456 #define CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE) \
1457 (TYPE_LANG_SPECIFIC (NODE) \
1458 ? LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init : 0)
1459 #define SET_CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE, VALUE) \
1460 (LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init = (VALUE))
1462 /* Nonzero if this class has ref members
1463 which have no specified initialization. */
1464 #define CLASSTYPE_REF_FIELDS_NEED_INIT(NODE) \
1465 (TYPE_LANG_SPECIFIC (NODE) \
1466 ? LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init : 0)
1467 #define SET_CLASSTYPE_REF_FIELDS_NEED_INIT(NODE, VALUE) \
1468 (LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init = (VALUE))
1470 /* Nonzero if this class is included from a header file which employs
1471 `#pragma interface', and it is not included in its implementation file. */
1472 #define CLASSTYPE_INTERFACE_ONLY(NODE) \
1473 (LANG_TYPE_CLASS_CHECK (NODE)->interface_only)
1475 /* True if we have already determined whether or not vtables, VTTs,
1476 typeinfo, and other similar per-class data should be emitted in
1477 this translation unit. This flag does not indicate whether or not
1478 these items should be emitted; it only indicates that we know one
1479 way or the other. */
1480 #define CLASSTYPE_INTERFACE_KNOWN(NODE) \
1481 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown == 0)
1482 /* The opposite of CLASSTYPE_INTERFACE_KNOWN. */
1483 #define CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1484 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown)
1486 #define SET_CLASSTYPE_INTERFACE_UNKNOWN_X(NODE,X) \
1487 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = !!(X))
1488 #define SET_CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1489 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 1)
1490 #define SET_CLASSTYPE_INTERFACE_KNOWN(NODE) \
1491 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 0)
1493 /* Nonzero if a _DECL node requires us to output debug info for this class. */
1494 #define CLASSTYPE_DEBUG_REQUESTED(NODE) \
1495 (LANG_TYPE_CLASS_CHECK (NODE)->debug_requested)
1497 /* Additional macros for inheritance information. */
1499 /* Nonzero means that this class is on a path leading to a new vtable. */
1500 #define BINFO_VTABLE_PATH_MARKED(NODE) BINFO_FLAG_1 (NODE)
1502 /* Nonzero means B (a BINFO) has its own vtable. Any copies will not
1503 have this flag set. */
1504 #define BINFO_NEW_VTABLE_MARKED(B) (BINFO_FLAG_2 (B))
1506 /* Compare a BINFO_TYPE with another type for equality. For a binfo,
1507 this is functionally equivalent to using same_type_p, but
1508 measurably faster. At least one of the arguments must be a
1509 BINFO_TYPE. The other can be a BINFO_TYPE or a regular type. If
1510 BINFO_TYPE(T) ever stops being the main variant of the class the
1511 binfo is for, this macro must change. */
1512 #define SAME_BINFO_TYPE_P(A, B) ((A) == (B))
1514 /* Any subobject that needs a new vtable must have a vptr and must not
1515 be a non-virtual primary base (since it would then use the vtable from a
1516 derived class and never become non-primary.) */
1517 #define SET_BINFO_NEW_VTABLE_MARKED(B) \
1518 (BINFO_NEW_VTABLE_MARKED (B) = 1, \
1519 gcc_assert (!BINFO_PRIMARY_P (B) || BINFO_VIRTUAL_P (B)), \
1520 gcc_assert (TYPE_VFIELD (BINFO_TYPE (B))))
1522 /* Nonzero if this binfo is for a dependent base - one that should not
1524 #define BINFO_DEPENDENT_BASE_P(NODE) BINFO_FLAG_3 (NODE)
1526 /* Nonzero if this binfo has lost its primary base binfo (because that
1527 is a nearly-empty virtual base that has been taken by some other
1528 base in the complete hierarchy. */
1529 #define BINFO_LOST_PRIMARY_P(NODE) BINFO_FLAG_4 (NODE)
1531 /* Nonzero if this BINFO is a primary base class. */
1532 #define BINFO_PRIMARY_P(NODE) BINFO_FLAG_5(NODE)
1534 /* Used by various search routines. */
1535 #define IDENTIFIER_MARKED(NODE) TREE_LANG_FLAG_0 (NODE)
1537 /* A VEC(tree_pair_s) of the vcall indices associated with the class
1538 NODE. The PURPOSE of each element is a FUNCTION_DECL for a virtual
1539 function. The VALUE is the index into the virtual table where the
1540 vcall offset for that function is stored, when NODE is a virtual
1542 #define CLASSTYPE_VCALL_INDICES(NODE) \
1543 (LANG_TYPE_CLASS_CHECK (NODE)->vcall_indices)
1545 /* The various vtables for the class NODE. The primary vtable will be
1546 first, followed by the construction vtables and VTT, if any. */
1547 #define CLASSTYPE_VTABLES(NODE) \
1548 (LANG_TYPE_CLASS_CHECK (NODE)->vtables)
1550 /* The std::type_info variable representing this class, or NULL if no
1551 such variable has been created. This field is only set for the
1552 TYPE_MAIN_VARIANT of the class. */
1553 #define CLASSTYPE_TYPEINFO_VAR(NODE) \
1554 (LANG_TYPE_CLASS_CHECK (NODE)->typeinfo_var)
1556 /* Accessor macros for the BINFO_VIRTUALS list. */
1558 /* The number of bytes by which to adjust the `this' pointer when
1559 calling this virtual function. Subtract this value from the this
1560 pointer. Always non-NULL, might be constant zero though. */
1561 #define BV_DELTA(NODE) (TREE_PURPOSE (NODE))
1563 /* If non-NULL, the vtable index at which to find the vcall offset
1564 when calling this virtual function. Add the value at that vtable
1565 index to the this pointer. */
1566 #define BV_VCALL_INDEX(NODE) (TREE_TYPE (NODE))
1568 /* The function to call. */
1569 #define BV_FN(NODE) (TREE_VALUE (NODE))
1572 /* For FUNCTION_TYPE or METHOD_TYPE, a list of the exceptions that
1573 this type can raise. Each TREE_VALUE is a _TYPE. The TREE_VALUE
1574 will be NULL_TREE to indicate a throw specification of `()', or
1575 no exceptions allowed. */
1576 #define TYPE_RAISES_EXCEPTIONS(NODE) TYPE_LANG_SLOT_1 (NODE)
1578 /* For FUNCTION_TYPE or METHOD_TYPE, return 1 iff it is declared `throw()'. */
1579 #define TYPE_NOTHROW_P(NODE) \
1580 (TYPE_RAISES_EXCEPTIONS (NODE) \
1581 && TREE_VALUE (TYPE_RAISES_EXCEPTIONS (NODE)) == NULL_TREE)
1583 /* The binding level associated with the namespace. */
1584 #define NAMESPACE_LEVEL(NODE) \
1585 (DECL_LANG_SPECIFIC (NODE)->decl_flags.u.level)
1588 /* If a DECL has DECL_LANG_SPECIFIC, it is either a lang_decl_flags or
1589 a lang_decl (which has lang_decl_flags as its initial prefix).
1590 This macro is nonzero for tree nodes whose DECL_LANG_SPECIFIC is
1591 the full lang_decl, and not just lang_decl_flags. Keep these
1592 checks in ascending code order. */
1593 #define CAN_HAVE_FULL_LANG_DECL_P(NODE) \
1594 (!(TREE_CODE (NODE) == FIELD_DECL \
1595 || TREE_CODE (NODE) == VAR_DECL \
1596 || TREE_CODE (NODE) == CONST_DECL \
1597 || TREE_CODE (NODE) == USING_DECL))
1599 struct lang_decl_flags GTY(())
1601 ENUM_BITFIELD(languages) language : 4;
1602 unsigned global_ctor_p : 1;
1603 unsigned global_dtor_p : 1;
1604 unsigned anticipated_p : 1;
1605 unsigned template_conv_p : 1;
1607 unsigned operator_attr : 1;
1608 unsigned constructor_attr : 1;
1609 unsigned destructor_attr : 1;
1610 unsigned friend_attr : 1;
1611 unsigned static_function : 1;
1612 unsigned pure_virtual : 1;
1613 unsigned has_in_charge_parm_p : 1;
1614 unsigned has_vtt_parm_p : 1;
1616 unsigned deferred : 1;
1617 unsigned use_template : 2;
1618 unsigned nonconverting : 1;
1619 unsigned not_really_extern : 1;
1620 unsigned initialized_in_class : 1;
1621 unsigned assignment_operator_p : 1;
1625 unsigned can_be_full : 1;
1626 unsigned thunk_p : 1;
1627 unsigned this_thunk_p : 1;
1628 unsigned repo_available_p : 1;
1629 unsigned hidden_friend_p : 1;
1630 unsigned threadprivate_or_deleted_p : 1;
1631 unsigned defaulted_p : 1;
1634 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
1636 In a FUNCTION_DECL for which DECL_THUNK_P does not hold,
1637 VAR_DECL, TYPE_DECL, or TEMPLATE_DECL, this is
1638 DECL_TEMPLATE_INFO. */
1639 tree GTY ((tag ("0"))) template_info;
1641 /* In a NAMESPACE_DECL, this is NAMESPACE_LEVEL. */
1642 struct cp_binding_level * GTY ((tag ("1"))) level;
1643 } GTY ((desc ("%1.u1sel"))) u;
1645 union lang_decl_u2 {
1646 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
1647 THUNK_VIRTUAL_OFFSET.
1648 Otherwise this is DECL_ACCESS. */
1649 tree GTY ((tag ("0"))) access;
1651 /* For VAR_DECL in function, this is DECL_DISCRIMINATOR. */
1652 int GTY ((tag ("1"))) discriminator;
1653 } GTY ((desc ("%1.u2sel"))) u2;
1656 /* sorted_fields is sorted based on a pointer, so we need to be able
1657 to resort it if pointers get rearranged. */
1659 struct lang_decl GTY(())
1661 struct lang_decl_flags decl_flags;
1665 struct full_lang_decl
1667 /* In an overloaded operator, this is the value of
1668 DECL_OVERLOADED_OPERATOR_P. */
1669 ENUM_BITFIELD (tree_code) operator_code : 16;
1672 unsigned pending_inline_p : 1;
1673 unsigned spare : 14;
1675 /* For a non-thunk function decl, this is a tree list of
1676 friendly classes. For a thunk function decl, it is the
1677 thunked to function decl. */
1678 tree befriending_classes;
1680 /* For a non-virtual FUNCTION_DECL, this is
1681 DECL_FRIEND_CONTEXT. For a virtual FUNCTION_DECL for which
1682 DECL_THIS_THUNK_P does not hold, this is DECL_THUNKS. Both
1683 this pointer and result pointer adjusting thunks are
1684 chained here. This pointer thunks to return pointer thunks
1685 will be chained on the return pointer thunk. */
1690 /* In a non-thunk FUNCTION_DECL or TEMPLATE_DECL, this is
1691 DECL_CLONED_FUNCTION. */
1692 tree GTY ((tag ("0"))) cloned_function;
1694 /* In a FUNCTION_DECL for which THUNK_P holds this is the
1695 THUNK_FIXED_OFFSET. */
1696 HOST_WIDE_INT GTY ((tag ("1"))) fixed_offset;
1697 } GTY ((desc ("%0.decl_flags.thunk_p"))) u5;
1701 struct sorted_fields_type * GTY ((tag ("0"), reorder ("resort_sorted_fields")))
1703 struct cp_token_cache * GTY ((tag ("2"))) pending_inline_info;
1704 struct language_function * GTY ((tag ("1")))
1705 saved_language_function;
1706 } GTY ((desc ("%1.u3sel + %1.pending_inline_p"))) u;
1707 } GTY ((tag ("1"))) f;
1708 } GTY ((desc ("%1.decl_flags.can_be_full"))) u;
1711 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1713 #define LANG_DECL_U2_CHECK(NODE, TF) __extension__ \
1714 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
1715 if (lt->decl_flags.u2sel != TF) \
1716 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1717 <->decl_flags.u2; })
1721 #define LANG_DECL_U2_CHECK(NODE, TF) \
1722 (&DECL_LANG_SPECIFIC (NODE)->decl_flags.u2)
1724 #endif /* ENABLE_TREE_CHECKING */
1726 /* For a FUNCTION_DECL or a VAR_DECL, the language linkage for the
1727 declaration. Some entities (like a member function in a local
1728 class, or a local variable) do not have linkage at all, and this
1729 macro should not be used in those cases.
1731 Implementation note: A FUNCTION_DECL without DECL_LANG_SPECIFIC was
1732 created by language-independent code, and has C linkage. Most
1733 VAR_DECLs have C++ linkage, and do not have DECL_LANG_SPECIFIC, but
1734 we do create DECL_LANG_SPECIFIC for variables with non-C++ linkage. */
1735 #define DECL_LANGUAGE(NODE) \
1736 (DECL_LANG_SPECIFIC (NODE) \
1737 ? DECL_LANG_SPECIFIC (NODE)->decl_flags.language \
1738 : (TREE_CODE (NODE) == FUNCTION_DECL \
1739 ? lang_c : lang_cplusplus))
1741 /* Set the language linkage for NODE to LANGUAGE. */
1742 #define SET_DECL_LANGUAGE(NODE, LANGUAGE) \
1743 (DECL_LANG_SPECIFIC (NODE)->decl_flags.language = (LANGUAGE))
1745 /* For FUNCTION_DECLs: nonzero means that this function is a constructor. */
1746 #define DECL_CONSTRUCTOR_P(NODE) \
1747 (DECL_LANG_SPECIFIC (NODE)->decl_flags.constructor_attr)
1749 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a complete
1751 #define DECL_COMPLETE_CONSTRUCTOR_P(NODE) \
1752 (DECL_CONSTRUCTOR_P (NODE) \
1753 && DECL_NAME (NODE) == complete_ctor_identifier)
1755 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a base
1757 #define DECL_BASE_CONSTRUCTOR_P(NODE) \
1758 (DECL_CONSTRUCTOR_P (NODE) \
1759 && DECL_NAME (NODE) == base_ctor_identifier)
1761 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor, but not either the
1762 specialized in-charge constructor or the specialized not-in-charge
1764 #define DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P(NODE) \
1765 (DECL_CONSTRUCTOR_P (NODE) && !DECL_CLONED_FUNCTION_P (NODE))
1767 /* Nonzero if NODE (a FUNCTION_DECL) is a copy constructor. */
1768 #define DECL_COPY_CONSTRUCTOR_P(NODE) \
1769 (DECL_CONSTRUCTOR_P (NODE) && copy_fn_p (NODE) > 0)
1771 /* Nonzero if NODE (a FUNCTION_DECL) is a move constructor. */
1772 #define DECL_MOVE_CONSTRUCTOR_P(NODE) \
1773 (DECL_CONSTRUCTOR_P (NODE) && move_fn_p (NODE))
1775 /* Nonzero if NODE is a destructor. */
1776 #define DECL_DESTRUCTOR_P(NODE) \
1777 (DECL_LANG_SPECIFIC (NODE)->decl_flags.destructor_attr)
1779 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor, but not the
1780 specialized in-charge constructor, in-charge deleting constructor,
1781 or the base destructor. */
1782 #define DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P(NODE) \
1783 (DECL_DESTRUCTOR_P (NODE) && !DECL_CLONED_FUNCTION_P (NODE))
1785 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
1787 #define DECL_COMPLETE_DESTRUCTOR_P(NODE) \
1788 (DECL_DESTRUCTOR_P (NODE) \
1789 && DECL_NAME (NODE) == complete_dtor_identifier)
1791 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a base
1793 #define DECL_BASE_DESTRUCTOR_P(NODE) \
1794 (DECL_DESTRUCTOR_P (NODE) \
1795 && DECL_NAME (NODE) == base_dtor_identifier)
1797 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
1798 object that deletes the object after it has been destroyed. */
1799 #define DECL_DELETING_DESTRUCTOR_P(NODE) \
1800 (DECL_DESTRUCTOR_P (NODE) \
1801 && DECL_NAME (NODE) == deleting_dtor_identifier)
1803 /* Nonzero if NODE (a FUNCTION_DECL) is a cloned constructor or
1805 #define DECL_CLONED_FUNCTION_P(NODE) \
1806 ((TREE_CODE (NODE) == FUNCTION_DECL \
1807 || TREE_CODE (NODE) == TEMPLATE_DECL) \
1808 && DECL_LANG_SPECIFIC (NODE) \
1809 && !DECL_LANG_SPECIFIC (NODE)->decl_flags.thunk_p \
1810 && DECL_CLONED_FUNCTION (NODE) != NULL_TREE)
1812 /* If DECL_CLONED_FUNCTION_P holds, this is the function that was
1814 #define DECL_CLONED_FUNCTION(NODE) \
1815 (DECL_LANG_SPECIFIC (NON_THUNK_FUNCTION_CHECK(NODE))->u.f.u5.cloned_function)
1817 /* Perform an action for each clone of FN, if FN is a function with
1818 clones. This macro should be used like:
1820 FOR_EACH_CLONE (clone, fn)
1824 #define FOR_EACH_CLONE(CLONE, FN) \
1825 if (TREE_CODE (FN) == FUNCTION_DECL \
1826 && (DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (FN) \
1827 || DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (FN))) \
1828 for (CLONE = TREE_CHAIN (FN); \
1829 CLONE && DECL_CLONED_FUNCTION_P (CLONE); \
1830 CLONE = TREE_CHAIN (CLONE))
1832 /* Nonzero if NODE has DECL_DISCRIMINATOR and not DECL_ACCESS. */
1833 #define DECL_DISCRIMINATOR_P(NODE) \
1834 (TREE_CODE (NODE) == VAR_DECL \
1835 && DECL_FUNCTION_SCOPE_P (NODE))
1837 /* Discriminator for name mangling. */
1838 #define DECL_DISCRIMINATOR(NODE) (LANG_DECL_U2_CHECK (NODE, 1)->discriminator)
1840 /* Nonzero if the VTT parm has been added to NODE. */
1841 #define DECL_HAS_VTT_PARM_P(NODE) \
1842 (DECL_LANG_SPECIFIC (NODE)->decl_flags.has_vtt_parm_p)
1844 /* Nonzero if NODE is a FUNCTION_DECL for which a VTT parameter is
1846 #define DECL_NEEDS_VTT_PARM_P(NODE) \
1847 (CLASSTYPE_VBASECLASSES (DECL_CONTEXT (NODE)) \
1848 && (DECL_BASE_CONSTRUCTOR_P (NODE) \
1849 || DECL_BASE_DESTRUCTOR_P (NODE)))
1851 /* Nonzero if NODE is a user-defined conversion operator. */
1852 #define DECL_CONV_FN_P(NODE) \
1853 (DECL_NAME (NODE) && IDENTIFIER_TYPENAME_P (DECL_NAME (NODE)))
1855 /* If FN is a conversion operator, the type to which it converts.
1856 Otherwise, NULL_TREE. */
1857 #define DECL_CONV_FN_TYPE(FN) \
1858 (DECL_CONV_FN_P (FN) ? TREE_TYPE (DECL_NAME (FN)) : NULL_TREE)
1860 /* Nonzero if NODE, which is a TEMPLATE_DECL, is a template
1861 conversion operator to a type dependent on the innermost template
1863 #define DECL_TEMPLATE_CONV_FN_P(NODE) \
1864 (DECL_LANG_SPECIFIC (NODE)->decl_flags.template_conv_p)
1866 /* Set the overloaded operator code for NODE to CODE. */
1867 #define SET_OVERLOADED_OPERATOR_CODE(NODE, CODE) \
1868 (DECL_LANG_SPECIFIC (NODE)->u.f.operator_code = (CODE))
1870 /* If NODE is an overloaded operator, then this returns the TREE_CODE
1871 associated with the overloaded operator.
1872 DECL_ASSIGNMENT_OPERATOR_P must also be checked to determine
1873 whether or not NODE is an assignment operator. If NODE is not an
1874 overloaded operator, ERROR_MARK is returned. Since the numerical
1875 value of ERROR_MARK is zero, this macro can be used as a predicate
1876 to test whether or not NODE is an overloaded operator. */
1877 #define DECL_OVERLOADED_OPERATOR_P(NODE) \
1878 (IDENTIFIER_OPNAME_P (DECL_NAME (NODE)) \
1879 ? DECL_LANG_SPECIFIC (NODE)->u.f.operator_code : ERROR_MARK)
1881 /* Nonzero if NODE is an assignment operator (including += and such). */
1882 #define DECL_ASSIGNMENT_OPERATOR_P(NODE) \
1883 (DECL_LANG_SPECIFIC (NODE)->decl_flags.assignment_operator_p)
1885 /* For FUNCTION_DECLs: nonzero means that this function is a
1886 constructor or a destructor with an extra in-charge parameter to
1887 control whether or not virtual bases are constructed. */
1888 #define DECL_HAS_IN_CHARGE_PARM_P(NODE) \
1889 (DECL_LANG_SPECIFIC (NODE)->decl_flags.has_in_charge_parm_p)
1891 /* Nonzero if DECL is a declaration of __builtin_constant_p. */
1892 #define DECL_IS_BUILTIN_CONSTANT_P(NODE) \
1893 (TREE_CODE (NODE) == FUNCTION_DECL \
1894 && DECL_BUILT_IN_CLASS (NODE) == BUILT_IN_NORMAL \
1895 && DECL_FUNCTION_CODE (NODE) == BUILT_IN_CONSTANT_P)
1897 /* Nonzero for _DECL means that this decl appears in (or will appear
1898 in) as a member in a RECORD_TYPE or UNION_TYPE node. It is also for
1899 detecting circularity in case members are multiply defined. In the
1900 case of a VAR_DECL, it is also used to determine how program storage
1901 should be allocated. */
1902 #define DECL_IN_AGGR_P(NODE) (DECL_LANG_FLAG_3 (NODE))
1904 /* Nonzero for a VAR_DECL means that the variable's initialization (if
1905 any) has been processed. (In general, DECL_INITIALIZED_P is
1906 !DECL_EXTERN, but static data members may be initialized even if
1908 #define DECL_INITIALIZED_P(NODE) \
1909 (TREE_LANG_FLAG_1 (VAR_DECL_CHECK (NODE)))
1911 /* Nonzero for a VAR_DECL iff an explicit initializer was provided. */
1912 #define DECL_NONTRIVIALLY_INITIALIZED_P(NODE) \
1913 (TREE_LANG_FLAG_3 (VAR_DECL_CHECK (NODE)))
1915 /* Nonzero for a VAR_DECL that was initialized with a
1916 constant-expression. */
1917 #define DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P(NODE) \
1918 (TREE_LANG_FLAG_2 (VAR_DECL_CHECK (NODE)))
1920 /* Nonzero for a VAR_DECL that can be used in an integral constant
1925 An integral constant-expression can only involve ... const
1926 variables of static or enumeration types initialized with
1927 constant expressions ...
1929 The standard does not require that the expression be non-volatile.
1930 G++ implements the proposed correction in DR 457. */
1931 #define DECL_INTEGRAL_CONSTANT_VAR_P(NODE) \
1932 (TREE_CODE (NODE) == VAR_DECL \
1933 && CP_TYPE_CONST_NON_VOLATILE_P (TREE_TYPE (NODE)) \
1934 && INTEGRAL_OR_ENUMERATION_TYPE_P (TREE_TYPE (NODE)) \
1935 && DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (NODE))
1937 /* Nonzero if the DECL was initialized in the class definition itself,
1938 rather than outside the class. This is used for both static member
1939 VAR_DECLS, and FUNCTION_DECLS that are defined in the class. */
1940 #define DECL_INITIALIZED_IN_CLASS_P(DECL) \
1941 (DECL_LANG_SPECIFIC (DECL)->decl_flags.initialized_in_class)
1943 /* Nonzero for DECL means that this decl is just a friend declaration,
1944 and should not be added to the list of members for this class. */
1945 #define DECL_FRIEND_P(NODE) (DECL_LANG_SPECIFIC (NODE)->decl_flags.friend_attr)
1947 /* A TREE_LIST of the types which have befriended this FUNCTION_DECL. */
1948 #define DECL_BEFRIENDING_CLASSES(NODE) \
1949 (DECL_LANG_SPECIFIC (NODE)->u.f.befriending_classes)
1951 /* Nonzero for FUNCTION_DECL means that this decl is a static
1953 #define DECL_STATIC_FUNCTION_P(NODE) \
1954 (DECL_LANG_SPECIFIC (NODE)->decl_flags.static_function)
1956 /* Nonzero for FUNCTION_DECL means that this decl is a non-static
1958 #define DECL_NONSTATIC_MEMBER_FUNCTION_P(NODE) \
1959 (TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE)
1961 /* Nonzero for FUNCTION_DECL means that this decl is a member function
1962 (static or non-static). */
1963 #define DECL_FUNCTION_MEMBER_P(NODE) \
1964 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) || DECL_STATIC_FUNCTION_P (NODE))
1966 /* Nonzero for FUNCTION_DECL means that this member function
1967 has `this' as const X *const. */
1968 #define DECL_CONST_MEMFUNC_P(NODE) \
1969 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
1970 && CP_TYPE_CONST_P (TREE_TYPE (TREE_VALUE \
1971 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
1973 /* Nonzero for FUNCTION_DECL means that this member function
1974 has `this' as volatile X *const. */
1975 #define DECL_VOLATILE_MEMFUNC_P(NODE) \
1976 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
1977 && CP_TYPE_VOLATILE_P (TREE_TYPE (TREE_VALUE \
1978 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
1980 /* Nonzero for a DECL means that this member is a non-static member. */
1981 #define DECL_NONSTATIC_MEMBER_P(NODE) \
1982 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
1983 || TREE_CODE (NODE) == FIELD_DECL)
1985 /* Nonzero for _DECL means that this member object type
1987 #define DECL_MUTABLE_P(NODE) (DECL_LANG_FLAG_0 (NODE))
1989 /* Nonzero for _DECL means that this constructor is a non-converting
1991 #define DECL_NONCONVERTING_P(NODE) \
1992 (DECL_LANG_SPECIFIC (NODE)->decl_flags.nonconverting)
1994 /* Nonzero for FUNCTION_DECL means that this member function is a pure
1995 virtual function. */
1996 #define DECL_PURE_VIRTUAL_P(NODE) \
1997 (DECL_LANG_SPECIFIC (NODE)->decl_flags.pure_virtual)
1999 /* True (in a FUNCTION_DECL) if NODE is a virtual function that is an
2000 invalid overrider for a function from a base class. Once we have
2001 complained about an invalid overrider we avoid complaining about it
2003 #define DECL_INVALID_OVERRIDER_P(NODE) \
2004 (DECL_LANG_FLAG_4 (NODE))
2006 /* The thunks associated with NODE, a FUNCTION_DECL. */
2007 #define DECL_THUNKS(NODE) \
2008 (DECL_LANG_SPECIFIC (NODE)->u.f.context)
2010 /* Nonzero if NODE is a thunk, rather than an ordinary function. */
2011 #define DECL_THUNK_P(NODE) \
2012 (TREE_CODE (NODE) == FUNCTION_DECL \
2013 && DECL_LANG_SPECIFIC (NODE) \
2014 && DECL_LANG_SPECIFIC (NODE)->decl_flags.thunk_p)
2016 /* Set DECL_THUNK_P for node. */
2017 #define SET_DECL_THUNK_P(NODE, THIS_ADJUSTING) \
2018 (DECL_LANG_SPECIFIC (NODE)->decl_flags.thunk_p = 1, \
2019 DECL_LANG_SPECIFIC (NODE)->u.f.u3sel = 1, \
2020 DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p = (THIS_ADJUSTING))
2022 /* Nonzero if NODE is a this pointer adjusting thunk. */
2023 #define DECL_THIS_THUNK_P(NODE) \
2024 (DECL_THUNK_P (NODE) && DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p)
2026 /* Nonzero if NODE is a result pointer adjusting thunk. */
2027 #define DECL_RESULT_THUNK_P(NODE) \
2028 (DECL_THUNK_P (NODE) && !DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p)
2030 /* Nonzero if NODE is a FUNCTION_DECL, but not a thunk. */
2031 #define DECL_NON_THUNK_FUNCTION_P(NODE) \
2032 (TREE_CODE (NODE) == FUNCTION_DECL && !DECL_THUNK_P (NODE))
2034 /* Nonzero if NODE is `extern "C"'. */
2035 #define DECL_EXTERN_C_P(NODE) \
2036 (DECL_LANGUAGE (NODE) == lang_c)
2038 /* Nonzero if NODE is an `extern "C"' function. */
2039 #define DECL_EXTERN_C_FUNCTION_P(NODE) \
2040 (DECL_NON_THUNK_FUNCTION_P (NODE) && DECL_EXTERN_C_P (NODE))
2042 /* True iff DECL is an entity with vague linkage whose definition is
2043 available in this translation unit. */
2044 #define DECL_REPO_AVAILABLE_P(NODE) \
2045 (DECL_LANG_SPECIFIC (NODE)->decl_flags.repo_available_p)
2047 /* Nonzero if this DECL is the __PRETTY_FUNCTION__ variable in a
2048 template function. */
2049 #define DECL_PRETTY_FUNCTION_P(NODE) \
2050 (TREE_LANG_FLAG_0 (VAR_DECL_CHECK (NODE)))
2052 /* The _TYPE context in which this _DECL appears. This field holds the
2053 class where a virtual function instance is actually defined. */
2054 #define DECL_CLASS_CONTEXT(NODE) \
2055 (DECL_CLASS_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : NULL_TREE)
2057 /* For a non-member friend function, the class (if any) in which this
2058 friend was defined. For example, given:
2060 struct S { friend void f (); };
2062 the DECL_FRIEND_CONTEXT for `f' will be `S'. */
2063 #define DECL_FRIEND_CONTEXT(NODE) \
2064 ((DECL_FRIEND_P (NODE) && !DECL_FUNCTION_MEMBER_P (NODE)) \
2065 ? DECL_LANG_SPECIFIC (NODE)->u.f.context \
2068 /* Set the DECL_FRIEND_CONTEXT for NODE to CONTEXT. */
2069 #define SET_DECL_FRIEND_CONTEXT(NODE, CONTEXT) \
2070 (DECL_LANG_SPECIFIC (NODE)->u.f.context = (CONTEXT))
2072 /* NULL_TREE in DECL_CONTEXT represents the global namespace. */
2073 #define CP_DECL_CONTEXT(NODE) \
2074 (DECL_CONTEXT (NODE) ? DECL_CONTEXT (NODE) : global_namespace)
2075 #define CP_TYPE_CONTEXT(NODE) \
2076 (TYPE_CONTEXT (NODE) ? TYPE_CONTEXT (NODE) : global_namespace)
2077 #define FROB_CONTEXT(NODE) ((NODE) == global_namespace ? NULL_TREE : (NODE))
2079 /* 1 iff NODE has namespace scope, including the global namespace. */
2080 #define DECL_NAMESPACE_SCOPE_P(NODE) \
2081 (!DECL_TEMPLATE_PARM_P (NODE) \
2082 && TREE_CODE (CP_DECL_CONTEXT (NODE)) == NAMESPACE_DECL)
2084 /* 1 iff NODE is a class member. */
2085 #define DECL_CLASS_SCOPE_P(NODE) \
2086 (DECL_CONTEXT (NODE) && TYPE_P (DECL_CONTEXT (NODE)))
2088 #define TYPE_CLASS_SCOPE_P(NODE) \
2089 (TYPE_CONTEXT (NODE) && TYPE_P (TYPE_CONTEXT (NODE)))
2091 /* 1 iff NODE is function-local. */
2092 #define DECL_FUNCTION_SCOPE_P(NODE) \
2093 (DECL_CONTEXT (NODE) \
2094 && TREE_CODE (DECL_CONTEXT (NODE)) == FUNCTION_DECL)
2096 /* 1 iff VAR_DECL node NODE is a type-info decl. This flag is set for
2097 both the primary typeinfo object and the associated NTBS name. */
2098 #define DECL_TINFO_P(NODE) TREE_LANG_FLAG_4 (VAR_DECL_CHECK (NODE))
2100 /* 1 iff VAR_DECL node NODE is virtual table or VTT. */
2101 #define DECL_VTABLE_OR_VTT_P(NODE) TREE_LANG_FLAG_5 (VAR_DECL_CHECK (NODE))
2103 /* Returns 1 iff VAR_DECL is a construction virtual table.
2104 DECL_VTABLE_OR_VTT_P will be true in this case and must be checked
2105 before using this macro. */
2106 #define DECL_CONSTRUCTION_VTABLE_P(NODE) \
2107 TREE_LANG_FLAG_6 (VAR_DECL_CHECK (NODE))
2109 /* 1 iff NODE is function-local, but for types. */
2110 #define LOCAL_CLASS_P(NODE) \
2111 (decl_function_context (TYPE_MAIN_DECL (NODE)) != NULL_TREE)
2113 /* For a NAMESPACE_DECL: the list of using namespace directives
2114 The PURPOSE is the used namespace, the value is the namespace
2115 that is the common ancestor. */
2116 #define DECL_NAMESPACE_USING(NODE) DECL_VINDEX (NAMESPACE_DECL_CHECK (NODE))
2118 /* In a NAMESPACE_DECL, the DECL_INITIAL is used to record all users
2119 of a namespace, to record the transitive closure of using namespace. */
2120 #define DECL_NAMESPACE_USERS(NODE) DECL_INITIAL (NAMESPACE_DECL_CHECK (NODE))
2122 /* In a NAMESPACE_DECL, the list of namespaces which have associated
2123 themselves with this one. */
2124 #define DECL_NAMESPACE_ASSOCIATIONS(NODE) \
2125 (NAMESPACE_DECL_CHECK (NODE)->decl_non_common.saved_tree)
2127 /* In a NAMESPACE_DECL, points to the original namespace if this is
2128 a namespace alias. */
2129 #define DECL_NAMESPACE_ALIAS(NODE) \
2130 DECL_ABSTRACT_ORIGIN (NAMESPACE_DECL_CHECK (NODE))
2131 #define ORIGINAL_NAMESPACE(NODE) \
2132 (DECL_NAMESPACE_ALIAS (NODE) ? DECL_NAMESPACE_ALIAS (NODE) : (NODE))
2134 /* Nonzero if NODE is the std namespace. */
2135 #define DECL_NAMESPACE_STD_P(NODE) \
2136 (TREE_CODE (NODE) == NAMESPACE_DECL \
2137 && CP_DECL_CONTEXT (NODE) == global_namespace \
2138 && DECL_NAME (NODE) == std_identifier)
2140 /* In a TREE_LIST concatenating using directives, indicate indirect
2142 #define TREE_INDIRECT_USING(NODE) (TREE_LIST_CHECK (NODE)->base.lang_flag_0)
2144 /* In a TREE_LIST in an attribute list, indicates that the attribute
2145 must be applied at instantiation time. */
2146 #define ATTR_IS_DEPENDENT(NODE) (TREE_LIST_CHECK (NODE)->base.lang_flag_0)
2148 extern tree decl_shadowed_for_var_lookup (tree);
2149 extern void decl_shadowed_for_var_insert (tree, tree);
2151 /* Non zero if this is a using decl for a dependent scope. */
2152 #define DECL_DEPENDENT_P(NODE) DECL_LANG_FLAG_0 (USING_DECL_CHECK (NODE))
2154 /* The scope named in a using decl. */
2155 #define USING_DECL_SCOPE(NODE) TREE_TYPE (USING_DECL_CHECK (NODE))
2157 /* The decls named by a using decl. */
2158 #define USING_DECL_DECLS(NODE) DECL_INITIAL (USING_DECL_CHECK (NODE))
2160 /* In a VAR_DECL, true if we have a shadowed local variable
2161 in the shadowed var table for this VAR_DECL. */
2162 #define DECL_HAS_SHADOWED_FOR_VAR_P(NODE) \
2163 (VAR_DECL_CHECK (NODE)->decl_with_vis.shadowed_for_var_p)
2165 /* In a VAR_DECL for a variable declared in a for statement,
2166 this is the shadowed (local) variable. */
2167 #define DECL_SHADOWED_FOR_VAR(NODE) \
2168 (DECL_HAS_SHADOWED_FOR_VAR_P(NODE) ? decl_shadowed_for_var_lookup (NODE) : NULL)
2170 #define SET_DECL_SHADOWED_FOR_VAR(NODE, VAL) \
2171 (decl_shadowed_for_var_insert (NODE, VAL))
2173 /* In a FUNCTION_DECL, this is nonzero if this function was defined in
2174 the class definition. We have saved away the text of the function,
2175 but have not yet processed it. */
2176 #define DECL_PENDING_INLINE_P(NODE) \
2177 (DECL_LANG_SPECIFIC (NODE)->u.f.pending_inline_p)
2179 /* If DECL_PENDING_INLINE_P holds, this is the saved text of the
2181 #define DECL_PENDING_INLINE_INFO(NODE) \
2182 (DECL_LANG_SPECIFIC (NODE)->u.f.u.pending_inline_info)
2184 /* For a TYPE_DECL: if this structure has many fields, we'll sort them
2185 and put them into a TREE_VEC. */
2186 #define DECL_SORTED_FIELDS(NODE) \
2187 (DECL_LANG_SPECIFIC (TYPE_DECL_CHECK (NODE))->u.f.u.sorted_fields)
2189 /* True if on the deferred_fns (see decl2.c) list. */
2190 #define DECL_DEFERRED_FN(DECL) \
2191 (DECL_LANG_SPECIFIC (DECL)->decl_flags.deferred)
2193 /* If non-NULL for a VAR_DECL, FUNCTION_DECL, TYPE_DECL or
2194 TEMPLATE_DECL, the entity is either a template specialization (if
2195 DECL_USE_TEMPLATE is nonzero) or the abstract instance of the
2198 In either case, DECL_TEMPLATE_INFO is a TREE_LIST, whose
2199 TREE_PURPOSE is the TEMPLATE_DECL of which this entity is a
2200 specialization or abstract instance. The TREE_VALUE is the
2201 template arguments used to specialize the template.
2205 template <typename T> struct S { friend void f(T) {} };
2207 In this case, S<int>::f is, from the point of view of the compiler,
2208 an instantiation of a template -- but, from the point of view of
2209 the language, each instantiation of S results in a wholly unrelated
2210 global function f. In this case, DECL_TEMPLATE_INFO for S<int>::f
2211 will be non-NULL, but DECL_USE_TEMPLATE will be zero. */
2212 #define DECL_TEMPLATE_INFO(NODE) \
2213 (DECL_LANG_SPECIFIC (VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK (NODE)) \
2214 ->decl_flags.u.template_info)
2216 /* For a VAR_DECL, indicates that the variable is actually a
2217 non-static data member of anonymous union that has been promoted to
2219 #define DECL_ANON_UNION_VAR_P(NODE) \
2220 (DECL_LANG_FLAG_4 (VAR_DECL_CHECK (NODE)))
2222 /* Template information for a RECORD_TYPE or UNION_TYPE. */
2223 #define CLASSTYPE_TEMPLATE_INFO(NODE) \
2224 (LANG_TYPE_CLASS_CHECK (RECORD_OR_UNION_CHECK (NODE))->template_info)
2226 /* Template information for an ENUMERAL_TYPE. Although an enumeration may
2227 not be a primary template, it may be declared within the scope of a
2228 primary template and the enumeration constants may depend on
2229 non-type template parameters. */
2230 #define ENUM_TEMPLATE_INFO(NODE) \
2231 (TYPE_LANG_SLOT_1 (ENUMERAL_TYPE_CHECK (NODE)))
2233 /* Template information for a template template parameter. */
2234 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO(NODE) \
2235 (LANG_TYPE_CLASS_CHECK (BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK (NODE)) \
2238 /* Template information for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2239 #define TYPE_TEMPLATE_INFO(NODE) \
2240 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2241 ? ENUM_TEMPLATE_INFO (NODE) : \
2242 (TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM \
2243 ? TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO (NODE) : \
2244 (TYPE_LANG_SPECIFIC (NODE) \
2245 ? CLASSTYPE_TEMPLATE_INFO (NODE) \
2248 /* Set the template information for an ENUMERAL_, RECORD_, or
2249 UNION_TYPE to VAL. */
2250 #define SET_TYPE_TEMPLATE_INFO(NODE, VAL) \
2251 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2252 ? (ENUM_TEMPLATE_INFO (NODE) = (VAL)) \
2253 : (CLASSTYPE_TEMPLATE_INFO (NODE) = (VAL)))
2255 #define TI_TEMPLATE(NODE) (TREE_PURPOSE (NODE))
2256 #define TI_ARGS(NODE) (TREE_VALUE (NODE))
2257 #define TI_PENDING_TEMPLATE_FLAG(NODE) TREE_LANG_FLAG_1 (NODE)
2259 /* We use TREE_VECs to hold template arguments. If there is only one
2260 level of template arguments, then the TREE_VEC contains the
2261 arguments directly. If there is more than one level of template
2262 arguments, then each entry in the TREE_VEC is itself a TREE_VEC,
2263 containing the template arguments for a single level. The first
2264 entry in the outer TREE_VEC is the outermost level of template
2265 parameters; the last is the innermost.
2267 It is incorrect to ever form a template argument vector containing
2268 only one level of arguments, but which is a TREE_VEC containing as
2269 its only entry the TREE_VEC for that level. */
2271 /* Nonzero if the template arguments is actually a vector of vectors,
2272 rather than just a vector. */
2273 #define TMPL_ARGS_HAVE_MULTIPLE_LEVELS(NODE) \
2274 (NODE && TREE_VEC_LENGTH (NODE) && TREE_VEC_ELT (NODE, 0) \
2275 && TREE_CODE (TREE_VEC_ELT (NODE, 0)) == TREE_VEC)
2277 /* The depth of a template argument vector. When called directly by
2278 the parser, we use a TREE_LIST rather than a TREE_VEC to represent
2279 template arguments. In fact, we may even see NULL_TREE if there
2280 are no template arguments. In both of those cases, there is only
2281 one level of template arguments. */
2282 #define TMPL_ARGS_DEPTH(NODE) \
2283 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (NODE) ? TREE_VEC_LENGTH (NODE) : 1)
2285 /* The LEVELth level of the template ARGS. The outermost level of
2286 args is level 1, not level 0. */
2287 #define TMPL_ARGS_LEVEL(ARGS, LEVEL) \
2288 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (ARGS) \
2289 ? TREE_VEC_ELT (ARGS, (LEVEL) - 1) : (ARGS))
2291 /* Set the LEVELth level of the template ARGS to VAL. This macro does
2292 not work with single-level argument vectors. */
2293 #define SET_TMPL_ARGS_LEVEL(ARGS, LEVEL, VAL) \
2294 (TREE_VEC_ELT (ARGS, (LEVEL) - 1) = (VAL))
2296 /* Accesses the IDXth parameter in the LEVELth level of the ARGS. */
2297 #define TMPL_ARG(ARGS, LEVEL, IDX) \
2298 (TREE_VEC_ELT (TMPL_ARGS_LEVEL (ARGS, LEVEL), IDX))
2300 /* Given a single level of template arguments in NODE, return the
2301 number of arguments. */
2302 #define NUM_TMPL_ARGS(NODE) \
2303 (TREE_VEC_LENGTH (NODE))
2305 /* Returns the innermost level of template arguments in ARGS. */
2306 #define INNERMOST_TEMPLATE_ARGS(NODE) \
2307 (get_innermost_template_args ((NODE), 1))
2309 /* The number of levels of template parameters given by NODE. */
2310 #define TMPL_PARMS_DEPTH(NODE) \
2311 ((HOST_WIDE_INT) TREE_INT_CST_LOW (TREE_PURPOSE (NODE)))
2313 /* The TEMPLATE_DECL instantiated or specialized by NODE. This
2314 TEMPLATE_DECL will be the immediate parent, not the most general
2315 template. For example, in:
2317 template <class T> struct S { template <class U> void f(U); }
2319 the FUNCTION_DECL for S<int>::f<double> will have, as its
2320 DECL_TI_TEMPLATE, `template <class U> S<int>::f<U>'.
2322 As a special case, for a member friend template of a template
2323 class, this value will not be a TEMPLATE_DECL, but rather an
2324 IDENTIFIER_NODE or OVERLOAD indicating the name of the template and
2325 any explicit template arguments provided. For example, in:
2327 template <class T> struct S { friend void f<int>(int, double); }
2329 the DECL_TI_TEMPLATE will be an IDENTIFIER_NODE for `f' and the
2330 DECL_TI_ARGS will be {int}. */
2331 #define DECL_TI_TEMPLATE(NODE) TI_TEMPLATE (DECL_TEMPLATE_INFO (NODE))
2333 /* The template arguments used to obtain this decl from the most
2334 general form of DECL_TI_TEMPLATE. For the example given for
2335 DECL_TI_TEMPLATE, the DECL_TI_ARGS will be {int, double}. These
2336 are always the full set of arguments required to instantiate this
2337 declaration from the most general template specialized here. */
2338 #define DECL_TI_ARGS(NODE) TI_ARGS (DECL_TEMPLATE_INFO (NODE))
2340 /* The TEMPLATE_DECL associated with NODE, a class type. Even if NODE
2341 will be generated from a partial specialization, the TEMPLATE_DECL
2342 referred to here will be the original template. For example,
2345 template <typename T> struct S {};
2346 template <typename T> struct S<T*> {};
2348 the CLASSTPYE_TI_TEMPLATE for S<int*> will be S, not the S<T*>. */
2349 #define CLASSTYPE_TI_TEMPLATE(NODE) TI_TEMPLATE (CLASSTYPE_TEMPLATE_INFO (NODE))
2350 #define CLASSTYPE_TI_ARGS(NODE) TI_ARGS (CLASSTYPE_TEMPLATE_INFO (NODE))
2352 /* For a template instantiation TYPE, returns the TYPE corresponding
2353 to the primary template. Otherwise returns TYPE itself. */
2354 #define CLASSTYPE_PRIMARY_TEMPLATE_TYPE(TYPE) \
2355 ((CLASSTYPE_USE_TEMPLATE ((TYPE)) \
2356 && !CLASSTYPE_TEMPLATE_SPECIALIZATION ((TYPE))) \
2357 ? TREE_TYPE (DECL_TEMPLATE_RESULT (DECL_PRIMARY_TEMPLATE \
2358 (CLASSTYPE_TI_TEMPLATE ((TYPE))))) \
2361 /* Like CLASS_TI_TEMPLATE, but also works for ENUMERAL_TYPEs. */
2362 #define TYPE_TI_TEMPLATE(NODE) \
2363 (TI_TEMPLATE (TYPE_TEMPLATE_INFO (NODE)))
2365 /* Like DECL_TI_ARGS, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2366 #define TYPE_TI_ARGS(NODE) \
2367 (TI_ARGS (TYPE_TEMPLATE_INFO (NODE)))
2369 #define INNERMOST_TEMPLATE_PARMS(NODE) TREE_VALUE (NODE)
2371 /* Nonzero if NODE (a TEMPLATE_DECL) is a member template, in the
2372 sense of [temp.mem]. */
2373 #define DECL_MEMBER_TEMPLATE_P(NODE) \
2374 (DECL_LANG_FLAG_1 (TEMPLATE_DECL_CHECK (NODE)))
2376 /* Nonzero if the NODE corresponds to the template parameters for a
2377 member template, whose inline definition is being processed after
2378 the class definition is complete. */
2379 #define TEMPLATE_PARMS_FOR_INLINE(NODE) TREE_LANG_FLAG_1 (NODE)
2381 /* Determine if a parameter (i.e., a PARM_DECL) is a function
2383 #define FUNCTION_PARAMETER_PACK_P(NODE) \
2384 (DECL_LANG_FLAG_1 (PARM_DECL_CHECK (NODE)))
2386 /* Determines if NODE is an expansion of one or more parameter packs,
2387 e.g., a TYPE_PACK_EXPANSION or EXPR_PACK_EXPANSION. */
2388 #define PACK_EXPANSION_P(NODE) \
2389 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION \
2390 || TREE_CODE (NODE) == EXPR_PACK_EXPANSION)
2392 /* Extracts the type or expression pattern from a TYPE_PACK_EXPANSION or
2393 EXPR_PACK_EXPANSION. */
2394 #define PACK_EXPANSION_PATTERN(NODE) \
2395 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION? TREE_TYPE (NODE) \
2396 : TREE_OPERAND (NODE, 0))
2398 /* Sets the type or expression pattern for a TYPE_PACK_EXPANSION or
2399 EXPR_PACK_EXPANSION. */
2400 #define SET_PACK_EXPANSION_PATTERN(NODE,VALUE) \
2401 if (TREE_CODE (NODE) == TYPE_PACK_EXPANSION) \
2402 TREE_TYPE (NODE) = VALUE; \
2404 TREE_OPERAND (NODE, 0) = VALUE
2406 /* The list of parameter packs used in the PACK_EXPANSION_* node. The
2407 TREE_VALUE of each TREE_LIST contains the parameter packs. */
2408 #define PACK_EXPANSION_PARAMETER_PACKS(NODE) TREE_CHAIN (NODE)
2410 /* Determine if this is an argument pack. */
2411 #define ARGUMENT_PACK_P(NODE) \
2412 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK \
2413 || TREE_CODE (NODE) == NONTYPE_ARGUMENT_PACK)
2415 /* The arguments stored in an argument pack. Arguments are stored in a
2416 TREE_VEC, which may have length zero. */
2417 #define ARGUMENT_PACK_ARGS(NODE) \
2418 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK? TREE_TYPE (NODE) \
2419 : TREE_OPERAND (NODE, 0))
2421 /* Set the arguments stored in an argument pack. VALUE must be a
2423 #define SET_ARGUMENT_PACK_ARGS(NODE,VALUE) \
2424 if (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK) \
2425 TREE_TYPE (NODE) = VALUE; \
2427 TREE_OPERAND (NODE, 0) = VALUE
2429 /* Whether the argument pack is "incomplete", meaning that more
2430 arguments can still be deduced. Incomplete argument packs are only
2431 used when the user has provided an explicit template argument list
2432 for a variadic function template. Some of the explicit template
2433 arguments will be placed into the beginning of the argument pack,
2434 but additional arguments might still be deduced. */
2435 #define ARGUMENT_PACK_INCOMPLETE_P(NODE) \
2436 TREE_LANG_FLAG_0 (ARGUMENT_PACK_ARGS (NODE))
2438 /* When ARGUMENT_PACK_INCOMPLETE_P, stores the explicit template
2439 arguments used to fill this pack. */
2440 #define ARGUMENT_PACK_EXPLICIT_ARGS(NODE) \
2441 TREE_TYPE (ARGUMENT_PACK_ARGS (NODE))
2443 /* In an ARGUMENT_PACK_SELECT, the argument pack from which an
2444 argument will be selected. */
2445 #define ARGUMENT_PACK_SELECT_FROM_PACK(NODE) \
2446 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->argument_pack)
2448 /* In an ARGUMENT_PACK_SELECT, the index of the argument we want to
2450 #define ARGUMENT_PACK_SELECT_INDEX(NODE) \
2451 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->index)
2453 /* In an ARGUMENT_PACK_SELECT, the actual underlying argument that the
2454 ARGUMENT_PACK_SELECT represents. */
2455 #define ARGUMENT_PACK_SELECT_ARG(NODE) \
2456 TREE_VEC_ELT (ARGUMENT_PACK_ARGS (ARGUMENT_PACK_SELECT_FROM_PACK (NODE)), \
2457 ARGUMENT_PACK_SELECT_INDEX (NODE));
2459 /* In a FUNCTION_DECL, the saved language-specific per-function data. */
2460 #define DECL_SAVED_FUNCTION_DATA(NODE) \
2461 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (NODE)) \
2462 ->u.f.u.saved_language_function)
2464 /* Indicates an indirect_expr is for converting a reference. */
2465 #define REFERENCE_REF_P(NODE) \
2466 TREE_LANG_FLAG_0 (INDIRECT_REF_CHECK (NODE))
2468 #define NEW_EXPR_USE_GLOBAL(NODE) \
2469 TREE_LANG_FLAG_0 (NEW_EXPR_CHECK (NODE))
2470 #define DELETE_EXPR_USE_GLOBAL(NODE) \
2471 TREE_LANG_FLAG_0 (DELETE_EXPR_CHECK (NODE))
2472 #define DELETE_EXPR_USE_VEC(NODE) \
2473 TREE_LANG_FLAG_1 (DELETE_EXPR_CHECK (NODE))
2475 /* Indicates that this is a non-dependent COMPOUND_EXPR which will
2476 resolve to a function call. */
2477 #define COMPOUND_EXPR_OVERLOADED(NODE) \
2478 TREE_LANG_FLAG_0 (COMPOUND_EXPR_CHECK (NODE))
2480 /* In a CALL_EXPR appearing in a template, true if Koenig lookup
2481 should be performed at instantiation time. */
2482 #define KOENIG_LOOKUP_P(NODE) TREE_LANG_FLAG_0 (CALL_EXPR_CHECK (NODE))
2484 /* Indicates whether a string literal has been parenthesized. Such
2485 usages are disallowed in certain circumstances. */
2487 #define PAREN_STRING_LITERAL_P(NODE) \
2488 TREE_LANG_FLAG_0 (STRING_CST_CHECK (NODE))
2490 /* Nonzero if this AGGR_INIT_EXPR provides for initialization via a
2491 constructor call, rather than an ordinary function call. */
2492 #define AGGR_INIT_VIA_CTOR_P(NODE) \
2493 TREE_LANG_FLAG_0 (AGGR_INIT_EXPR_CHECK (NODE))
2495 /* Nonzero if expanding this AGGR_INIT_EXPR should first zero-initialize
2497 #define AGGR_INIT_ZERO_FIRST(NODE) \
2498 TREE_LANG_FLAG_2 (AGGR_INIT_EXPR_CHECK (NODE))
2500 /* AGGR_INIT_EXPR accessors. These are equivalent to the CALL_EXPR
2501 accessors, except for AGGR_INIT_EXPR_SLOT (which takes the place of
2502 CALL_EXPR_STATIC_CHAIN). */
2504 #define AGGR_INIT_EXPR_FN(NODE) TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 1)
2505 #define AGGR_INIT_EXPR_SLOT(NODE) \
2506 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 2)
2507 #define AGGR_INIT_EXPR_ARG(NODE, I) \
2508 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), (I) + 3)
2509 #define aggr_init_expr_nargs(NODE) (VL_EXP_OPERAND_LENGTH(NODE) - 3)
2511 /* AGGR_INIT_EXPR_ARGP returns a pointer to the argument vector for NODE.
2512 We can't use &AGGR_INIT_EXPR_ARG (NODE, 0) because that will complain if
2513 the argument count is zero when checking is enabled. Instead, do
2514 the pointer arithmetic to advance past the 3 fixed operands in a
2515 AGGR_INIT_EXPR. That produces a valid pointer to just past the end of
2516 the operand array, even if it's not valid to dereference it. */
2517 #define AGGR_INIT_EXPR_ARGP(NODE) \
2518 (&(TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 0)) + 3)
2520 /* Abstract iterators for AGGR_INIT_EXPRs. */
2522 /* Structure containing iterator state. */
2523 typedef struct aggr_init_expr_arg_iterator_d GTY (())
2525 tree t; /* the aggr_init_expr */
2526 int n; /* argument count */
2527 int i; /* next argument index */
2528 } aggr_init_expr_arg_iterator;
2530 /* Initialize the abstract argument list iterator object ITER with the
2531 arguments from AGGR_INIT_EXPR node EXP. */
2533 init_aggr_init_expr_arg_iterator (tree exp,
2534 aggr_init_expr_arg_iterator *iter)
2537 iter->n = aggr_init_expr_nargs (exp);
2541 /* Return the next argument from abstract argument list iterator object ITER,
2542 and advance its state. Return NULL_TREE if there are no more arguments. */
2544 next_aggr_init_expr_arg (aggr_init_expr_arg_iterator *iter)
2547 if (iter->i >= iter->n)
2549 result = AGGR_INIT_EXPR_ARG (iter->t, iter->i);
2554 /* Initialize the abstract argument list iterator object ITER, then advance
2555 past and return the first argument. Useful in for expressions, e.g.
2556 for (arg = first_aggr_init_expr_arg (exp, &iter); arg;
2557 arg = next_aggr_init_expr_arg (&iter)) */
2559 first_aggr_init_expr_arg (tree exp, aggr_init_expr_arg_iterator *iter)
2561 init_aggr_init_expr_arg_iterator (exp, iter);
2562 return next_aggr_init_expr_arg (iter);
2565 /* Test whether there are more arguments in abstract argument list iterator
2566 ITER, without changing its state. */
2568 more_aggr_init_expr_args_p (const aggr_init_expr_arg_iterator *iter)
2570 return (iter->i < iter->n);
2573 /* Iterate through each argument ARG of AGGR_INIT_EXPR CALL, using variable
2574 ITER (of type aggr_init_expr_arg_iterator) to hold the iteration state. */
2575 #define FOR_EACH_AGGR_INIT_EXPR_ARG(arg, iter, call) \
2576 for ((arg) = first_aggr_init_expr_arg ((call), &(iter)); (arg); \
2577 (arg) = next_aggr_init_expr_arg (&(iter)))
2579 /* The TYPE_MAIN_DECL for a class template type is a TYPE_DECL, not a
2580 TEMPLATE_DECL. This macro determines whether or not a given class
2581 type is really a template type, as opposed to an instantiation or
2582 specialization of one. */
2583 #define CLASSTYPE_IS_TEMPLATE(NODE) \
2584 (CLASSTYPE_TEMPLATE_INFO (NODE) \
2585 && !CLASSTYPE_USE_TEMPLATE (NODE) \
2586 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE)))
2588 /* The name used by the user to name the typename type. Typically,
2589 this is an IDENTIFIER_NODE, and the same as the DECL_NAME on the
2590 corresponding TYPE_DECL. However, this may also be a
2591 TEMPLATE_ID_EXPR if we had something like `typename X::Y<T>'. */
2592 #define TYPENAME_TYPE_FULLNAME(NODE) (TYPENAME_TYPE_CHECK (NODE))->type.values
2594 /* True if a TYPENAME_TYPE was declared as an "enum". */
2595 #define TYPENAME_IS_ENUM_P(NODE) \
2596 (TREE_LANG_FLAG_0 (TYPENAME_TYPE_CHECK (NODE)))
2598 /* True if a TYPENAME_TYPE was declared as a "class", "struct", or
2600 #define TYPENAME_IS_CLASS_P(NODE) \
2601 (TREE_LANG_FLAG_1 (TYPENAME_TYPE_CHECK (NODE)))
2603 /* True if a TYPENAME_TYPE is in the process of being resolved. */
2604 #define TYPENAME_IS_RESOLVING_P(NODE) \
2605 (TREE_LANG_FLAG_2 (TYPENAME_TYPE_CHECK (NODE)))
2607 /* Nonzero in INTEGER_CST means that this int is negative by dint of
2608 using a twos-complement negated operand. */
2609 #define TREE_NEGATED_INT(NODE) TREE_LANG_FLAG_0 (INTEGER_CST_CHECK (NODE))
2613 A class that declares or inherits a virtual function is called a
2614 polymorphic class. */
2615 #define TYPE_POLYMORPHIC_P(NODE) (TREE_LANG_FLAG_2 (NODE))
2617 /* Nonzero if this class has a virtual function table pointer. */
2618 #define TYPE_CONTAINS_VPTR_P(NODE) \
2619 (TYPE_POLYMORPHIC_P (NODE) || CLASSTYPE_VBASECLASSES (NODE))
2621 /* This flag is true of a local VAR_DECL if it was declared in a for
2622 statement, but we are no longer in the scope of the for. */
2623 #define DECL_DEAD_FOR_LOCAL(NODE) DECL_LANG_FLAG_7 (VAR_DECL_CHECK (NODE))
2625 /* This flag is set on a VAR_DECL that is a DECL_DEAD_FOR_LOCAL
2626 if we already emitted a warning about using it. */
2627 #define DECL_ERROR_REPORTED(NODE) DECL_LANG_FLAG_0 (VAR_DECL_CHECK (NODE))
2629 /* Nonzero if NODE is a FUNCTION_DECL (for a function with global
2630 scope) declared in a local scope. */
2631 #define DECL_LOCAL_FUNCTION_P(NODE) \
2632 DECL_LANG_FLAG_0 (FUNCTION_DECL_CHECK (NODE))
2634 /* Nonzero if NODE is a DECL which we know about but which has not
2635 been explicitly declared, such as a built-in function or a friend
2636 declared inside a class. In the latter case DECL_HIDDEN_FRIEND_P
2638 #define DECL_ANTICIPATED(NODE) \
2639 (DECL_LANG_SPECIFIC (DECL_COMMON_CHECK (NODE))->decl_flags.anticipated_p)
2641 /* Nonzero if NODE is a FUNCTION_DECL which was declared as a friend
2642 within a class but has not been declared in the surrounding scope.
2643 The function is invisible except via argument dependent lookup. */
2644 #define DECL_HIDDEN_FRIEND_P(NODE) \
2645 (DECL_LANG_SPECIFIC (DECL_COMMON_CHECK (NODE))->decl_flags.hidden_friend_p)
2647 /* Nonzero if DECL has been declared threadprivate by
2648 #pragma omp threadprivate. */
2649 #define CP_DECL_THREADPRIVATE_P(DECL) \
2650 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (DECL))->decl_flags.threadprivate_or_deleted_p)
2652 /* Nonzero if DECL was declared with '= delete'. */
2653 #define DECL_DELETED_FN(DECL) \
2654 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->decl_flags.threadprivate_or_deleted_p)
2656 /* Nonzero if DECL was declared with '= default'. */
2657 #define DECL_DEFAULTED_FN(DECL) \
2658 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->decl_flags.defaulted_p)
2660 /* Record whether a typedef for type `int' was actually `signed int'. */
2661 #define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP)
2663 /* Returns nonzero if DECL has external linkage, as specified by the
2664 language standard. (This predicate may hold even when the
2665 corresponding entity is not actually given external linkage in the
2666 object file; see decl_linkage for details.) */
2667 #define DECL_EXTERNAL_LINKAGE_P(DECL) \
2668 (decl_linkage (DECL) == lk_external)
2670 /* Keep these codes in ascending code order. */
2672 #define INTEGRAL_CODE_P(CODE) \
2673 ((CODE) == ENUMERAL_TYPE \
2674 || (CODE) == BOOLEAN_TYPE \
2675 || (CODE) == INTEGER_TYPE)
2677 /* [basic.fundamental]
2679 Types bool, char, wchar_t, and the signed and unsigned integer types
2680 are collectively called integral types.
2682 Note that INTEGRAL_TYPE_P, as defined in tree.h, allows enumeration
2683 types as well, which is incorrect in C++. Keep these checks in
2684 ascending code order. */
2685 #define CP_INTEGRAL_TYPE_P(TYPE) \
2686 (TREE_CODE (TYPE) == BOOLEAN_TYPE \
2687 || TREE_CODE (TYPE) == INTEGER_TYPE)
2689 /* Returns true if TYPE is an integral or enumeration name. Keep
2690 these checks in ascending code order. */
2691 #define INTEGRAL_OR_ENUMERATION_TYPE_P(TYPE) \
2692 (TREE_CODE (TYPE) == ENUMERAL_TYPE || CP_INTEGRAL_TYPE_P (TYPE))
2694 /* Returns true if TYPE is an integral or unscoped enumeration type. */
2695 #define INTEGRAL_OR_UNSCOPED_ENUMERATION_TYPE_P(TYPE) \
2696 (UNSCOPED_ENUM_P (TYPE) || CP_INTEGRAL_TYPE_P (TYPE))
2698 /* [basic.fundamental]
2700 Integral and floating types are collectively called arithmetic
2703 As a GNU extension, we also accept complex types.
2705 Keep these checks in ascending code order. */
2706 #define ARITHMETIC_TYPE_P(TYPE) \
2707 (CP_INTEGRAL_TYPE_P (TYPE) \
2708 || TREE_CODE (TYPE) == REAL_TYPE \
2709 || TREE_CODE (TYPE) == COMPLEX_TYPE)
2713 Arithmetic types, enumeration types, pointer types, and
2714 pointer-to-member types, are collectively called scalar types.
2716 Keep these checks in ascending code order. */
2717 #define SCALAR_TYPE_P(TYPE) \
2718 (TYPE_PTRMEM_P (TYPE) \
2719 || TREE_CODE (TYPE) == ENUMERAL_TYPE \
2720 || ARITHMETIC_TYPE_P (TYPE) \
2721 || TYPE_PTR_P (TYPE) \
2722 || TYPE_PTRMEMFUNC_P (TYPE))
2724 /* Determines whether this type is a C++0x scoped enumeration
2725 type. Scoped enumerations types are introduced via "enum class" or
2726 "enum struct", e.g.,
2732 Scoped enumeration types are different from normal (unscoped)
2733 enumeration types in several ways:
2735 - The enumerators of a scoped enumeration type are only available
2736 within the scope of the enumeration type and not in the
2737 enclosing scope. For example, the Red color can be referred to
2738 with "Color::Red" but not "Red".
2740 - Scoped enumerators and enumerations do not implicitly convert
2741 to integers or 'bool'.
2743 - The underlying type of the enum is well-defined. */
2744 #define SCOPED_ENUM_P(TYPE) \
2745 (TREE_CODE (TYPE) == ENUMERAL_TYPE && TYPE_LANG_FLAG_5 (TYPE))
2747 /* Determine whether this is an unscoped enumeration type. */
2748 #define UNSCOPED_ENUM_P(TYPE) \
2749 (TREE_CODE (TYPE) == ENUMERAL_TYPE && !TYPE_LANG_FLAG_5 (TYPE))
2751 /* Set the flag indicating whether an ENUMERAL_TYPE is a C++0x scoped
2752 enumeration type (1) or a normal (unscoped) enumeration type
2754 #define SET_SCOPED_ENUM_P(TYPE, VAL) \
2755 (TYPE_LANG_FLAG_5 (ENUMERAL_TYPE_CHECK (TYPE)) = (VAL))
2757 /* Returns the underlying type of the given enumeration type. The
2758 underlying type is determined in different ways, depending on the
2759 properties of the enum:
2761 - In C++0x, the underlying type can be explicitly specified, e.g.,
2763 enum E1 : char { ... } // underlying type is char
2765 - In a C++0x scoped enumeration, the underlying type is int
2766 unless otherwises specified:
2768 enum class E2 { ... } // underlying type is int
2770 - Otherwise, the underlying type is determined based on the
2771 values of the enumerators. In this case, the
2772 ENUM_UNDERLYING_TYPE will not be set until after the definition
2773 of the enumeration is completed by finish_enum. */
2774 #define ENUM_UNDERLYING_TYPE(TYPE) \
2775 TREE_TYPE (ENUMERAL_TYPE_CHECK (TYPE))
2779 An aggregate is an array or a class with no user-declared
2780 constructors, no private or protected non-static data members, no
2781 base classes, and no virtual functions.
2783 As an extension, we also treat vectors as aggregates. Keep these
2784 checks in ascending code order. */
2785 #define CP_AGGREGATE_TYPE_P(TYPE) \
2786 (TREE_CODE (TYPE) == VECTOR_TYPE \
2787 ||TREE_CODE (TYPE) == ARRAY_TYPE \
2788 || (CLASS_TYPE_P (TYPE) && !CLASSTYPE_NON_AGGREGATE (TYPE)))
2790 /* Nonzero for a class type means that the class type has a
2791 user-declared constructor. */
2792 #define TYPE_HAS_USER_CONSTRUCTOR(NODE) (TYPE_LANG_FLAG_1 (NODE))
2794 /* When appearing in an INDIRECT_REF, it means that the tree structure
2795 underneath is actually a call to a constructor. This is needed
2796 when the constructor must initialize local storage (which can
2797 be automatically destroyed), rather than allowing it to allocate
2798 space from the heap.
2800 When appearing in a SAVE_EXPR, it means that underneath
2801 is a call to a constructor.
2803 When appearing in a CONSTRUCTOR, the expression is a
2806 When appearing in a FIELD_DECL, it means that this field
2807 has been duly initialized in its constructor. */
2808 #define TREE_HAS_CONSTRUCTOR(NODE) (TREE_LANG_FLAG_4 (NODE))
2810 /* True if NODE is a brace-enclosed initializer. */
2811 #define BRACE_ENCLOSED_INITIALIZER_P(NODE) \
2812 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_TYPE (NODE) == init_list_type_node)
2814 /* True if NODE is a compound-literal, i.e., a brace-enclosed
2815 initializer cast to a particular type. */
2816 #define COMPOUND_LITERAL_P(NODE) \
2817 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_HAS_CONSTRUCTOR (NODE))
2819 #define EMPTY_CONSTRUCTOR_P(NODE) (TREE_CODE (NODE) == CONSTRUCTOR \
2820 && VEC_empty (constructor_elt, \
2821 CONSTRUCTOR_ELTS (NODE)) \
2822 && !TREE_HAS_CONSTRUCTOR (NODE))
2824 /* True if NODE is a init-list used as a direct-initializer, i.e.
2825 B b{1,2}, not B b({1,2}) or B b = {1,2}. */
2826 #define CONSTRUCTOR_IS_DIRECT_INIT(NODE) (TREE_LANG_FLAG_0 (CONSTRUCTOR_CHECK (NODE)))
2828 /* Nonzero means that an object of this type can not be initialized using
2829 an initializer list. */
2830 #define CLASSTYPE_NON_AGGREGATE(NODE) \
2831 (LANG_TYPE_CLASS_CHECK (NODE)->non_aggregate)
2832 #define TYPE_NON_AGGREGATE_CLASS(NODE) \
2833 (CLASS_TYPE_P (NODE) && CLASSTYPE_NON_AGGREGATE (NODE))
2835 /* Nonzero if there is a user-defined X::op=(x&) for this class. */
2836 #define TYPE_HAS_COMPLEX_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_assign_ref)
2838 /* Nonzero if there is a user-defined X::X(x&) for this class. */
2839 #define TYPE_HAS_COMPLEX_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_init_ref)
2841 /* Nonzero if there is a user-defined default constructor for this class. */
2842 #define TYPE_HAS_COMPLEX_DFLT(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_dflt)
2844 /* Nonzero if TYPE has a trivial destructor. From [class.dtor]:
2846 A destructor is trivial if it is an implicitly declared
2849 - all of the direct base classes of its class have trivial
2852 - for all of the non-static data members of its class that are
2853 of class type (or array thereof), each such class has a
2854 trivial destructor. */
2855 #define TYPE_HAS_TRIVIAL_DESTRUCTOR(NODE) \
2856 (!TYPE_HAS_NONTRIVIAL_DESTRUCTOR (NODE))
2858 /* Nonzero for _TYPE node means that this type does not have a trivial
2859 destructor. Therefore, destroying an object of this type will
2860 involve a call to a destructor. This can apply to objects of
2861 ARRAY_TYPE is the type of the elements needs a destructor. */
2862 #define TYPE_HAS_NONTRIVIAL_DESTRUCTOR(NODE) \
2863 (TYPE_LANG_FLAG_4 (NODE))
2865 /* Nonzero for class type means that the default constructor is trivial. */
2866 #define TYPE_HAS_TRIVIAL_DFLT(NODE) \
2867 (TYPE_HAS_DEFAULT_CONSTRUCTOR (NODE) && ! TYPE_HAS_COMPLEX_DFLT (NODE))
2869 /* Nonzero for class type means that copy initialization of this type can use
2871 #define TYPE_HAS_TRIVIAL_INIT_REF(NODE) \
2872 (TYPE_HAS_INIT_REF (NODE) && ! TYPE_HAS_COMPLEX_INIT_REF (NODE))
2874 /* Nonzero for class type means that assignment of this type can use
2876 #define TYPE_HAS_TRIVIAL_ASSIGN_REF(NODE) \
2877 (TYPE_HAS_ASSIGN_REF (NODE) && ! TYPE_HAS_COMPLEX_ASSIGN_REF (NODE))
2879 /* Returns true if NODE is a pointer-to-data-member. */
2880 #define TYPE_PTRMEM_P(NODE) \
2881 (TREE_CODE (NODE) == OFFSET_TYPE)
2882 /* Returns true if NODE is a pointer. */
2883 #define TYPE_PTR_P(NODE) \
2884 (TREE_CODE (NODE) == POINTER_TYPE)
2886 /* Returns true if NODE is an object type:
2890 An object type is a (possibly cv-qualified) type that is not a
2891 function type, not a reference type, and not a void type.
2893 Keep these checks in ascending order, for speed. */
2894 #define TYPE_OBJ_P(NODE) \
2895 (TREE_CODE (NODE) != REFERENCE_TYPE \
2896 && TREE_CODE (NODE) != VOID_TYPE \
2897 && TREE_CODE (NODE) != FUNCTION_TYPE \
2898 && TREE_CODE (NODE) != METHOD_TYPE)
2900 /* Returns true if NODE is a pointer to an object. Keep these checks
2901 in ascending tree code order. */
2902 #define TYPE_PTROB_P(NODE) \
2903 (TYPE_PTR_P (NODE) && TYPE_OBJ_P (TREE_TYPE (NODE)))
2905 /* Returns true if NODE is a reference to an object. Keep these checks
2906 in ascending tree code order. */
2907 #define TYPE_REF_OBJ_P(NODE) \
2908 (TREE_CODE (NODE) == REFERENCE_TYPE && TYPE_OBJ_P (TREE_TYPE (NODE)))
2910 /* True if reference type NODE is an rvalue reference */
2911 #define TYPE_REF_IS_RVALUE(NODE) \
2912 TREE_LANG_FLAG_0 (REFERENCE_TYPE_CHECK (NODE))
2914 /* Returns true if NODE is a pointer to an object, or a pointer to
2915 void. Keep these checks in ascending tree code order. */
2916 #define TYPE_PTROBV_P(NODE) \
2917 (TYPE_PTR_P (NODE) \
2918 && !(TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE \
2919 || TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE))
2921 /* Returns true if NODE is a pointer to function. */
2922 #define TYPE_PTRFN_P(NODE) \
2923 (TREE_CODE (NODE) == POINTER_TYPE \
2924 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
2926 /* Returns true if NODE is a reference to function. */
2927 #define TYPE_REFFN_P(NODE) \
2928 (TREE_CODE (NODE) == REFERENCE_TYPE \
2929 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
2931 /* Nonzero for _TYPE node means that this type is a pointer to member
2933 #define TYPE_PTRMEMFUNC_P(NODE) \
2934 (TREE_CODE (NODE) == RECORD_TYPE \
2935 && TYPE_LANG_SPECIFIC (NODE) \
2936 && TYPE_PTRMEMFUNC_FLAG (NODE))
2938 #define TYPE_PTRMEMFUNC_FLAG(NODE) \
2939 (LANG_TYPE_CLASS_CHECK (NODE)->ptrmemfunc_flag)
2941 /* Returns true if NODE is a pointer-to-member. */
2942 #define TYPE_PTR_TO_MEMBER_P(NODE) \
2943 (TYPE_PTRMEM_P (NODE) || TYPE_PTRMEMFUNC_P (NODE))
2945 /* Indicates when overload resolution may resolve to a pointer to
2946 member function. [expr.unary.op]/3 */
2947 #define PTRMEM_OK_P(NODE) \
2948 TREE_LANG_FLAG_0 (TREE_CHECK2 ((NODE), ADDR_EXPR, OFFSET_REF))
2950 /* Get the POINTER_TYPE to the METHOD_TYPE associated with this
2951 pointer to member function. TYPE_PTRMEMFUNC_P _must_ be true,
2952 before using this macro. */
2953 #define TYPE_PTRMEMFUNC_FN_TYPE(NODE) \
2954 (TREE_TYPE (TYPE_FIELDS (NODE)))
2956 /* Returns `A' for a type like `int (A::*)(double)' */
2957 #define TYPE_PTRMEMFUNC_OBJECT_TYPE(NODE) \
2958 TYPE_METHOD_BASETYPE (TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
2960 /* These are use to manipulate the canonical RECORD_TYPE from the
2961 hashed POINTER_TYPE, and can only be used on the POINTER_TYPE. */
2962 #define TYPE_GET_PTRMEMFUNC_TYPE(NODE) \
2963 (TYPE_LANG_SPECIFIC (NODE) ? LANG_TYPE_PTRMEM_CHECK (NODE)->record : NULL)
2964 #define TYPE_SET_PTRMEMFUNC_TYPE(NODE, VALUE) \
2966 if (TYPE_LANG_SPECIFIC (NODE) == NULL) \
2968 TYPE_LANG_SPECIFIC (NODE) = GGC_CNEWVAR \
2969 (struct lang_type, sizeof (struct lang_type_ptrmem)); \
2970 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.h.is_lang_type_class = 0; \
2972 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.record = (VALUE); \
2975 /* For a pointer-to-member type of the form `T X::*', this is `X'.
2976 For a type like `void (X::*)() const', this type is `X', not `const
2977 X'. To get at the `const X' you have to look at the
2978 TYPE_PTRMEM_POINTED_TO_TYPE; there, the first parameter will have
2980 #define TYPE_PTRMEM_CLASS_TYPE(NODE) \
2981 (TYPE_PTRMEM_P (NODE) \
2982 ? TYPE_OFFSET_BASETYPE (NODE) \
2983 : TYPE_PTRMEMFUNC_OBJECT_TYPE (NODE))
2985 /* For a pointer-to-member type of the form `T X::*', this is `T'. */
2986 #define TYPE_PTRMEM_POINTED_TO_TYPE(NODE) \
2987 (TYPE_PTRMEM_P (NODE) \
2988 ? TREE_TYPE (NODE) \
2989 : TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
2991 /* For a pointer-to-member constant `X::Y' this is the RECORD_TYPE for
2993 #define PTRMEM_CST_CLASS(NODE) \
2994 TYPE_PTRMEM_CLASS_TYPE (TREE_TYPE (PTRMEM_CST_CHECK (NODE)))
2996 /* For a pointer-to-member constant `X::Y' this is the _DECL for
2998 #define PTRMEM_CST_MEMBER(NODE) (((ptrmem_cst_t)PTRMEM_CST_CHECK (NODE))->member)
3000 /* The expression in question for a TYPEOF_TYPE. */
3001 #define TYPEOF_TYPE_EXPR(NODE) (TYPEOF_TYPE_CHECK (NODE))->type.values
3003 /* The expression in question for a DECLTYPE_TYPE. */
3004 #define DECLTYPE_TYPE_EXPR(NODE) (DECLTYPE_TYPE_CHECK (NODE))->type.values
3006 /* Whether the DECLTYPE_TYPE_EXPR of NODE was originally parsed as an
3007 id-expression or a member-access expression. When false, it was
3008 parsed as a full expression. */
3009 #define DECLTYPE_TYPE_ID_EXPR_OR_MEMBER_ACCESS_P(NODE) \
3010 (DECLTYPE_TYPE_CHECK (NODE))->type.string_flag
3012 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `extern' was
3013 specified in its declaration. This can also be set for an
3014 erroneously declared PARM_DECL. */
3015 #define DECL_THIS_EXTERN(NODE) \
3016 DECL_LANG_FLAG_2 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
3018 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `static' was
3019 specified in its declaration. This can also be set for an
3020 erroneously declared PARM_DECL. */
3021 #define DECL_THIS_STATIC(NODE) \
3022 DECL_LANG_FLAG_6 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
3024 /* Nonzero for FIELD_DECL node means that this field is a base class
3025 of the parent object, as opposed to a member field. */
3026 #define DECL_FIELD_IS_BASE(NODE) \
3027 DECL_LANG_FLAG_6 (FIELD_DECL_CHECK (NODE))
3029 /* Nonzero if TYPE is an anonymous union or struct type. We have to use a
3030 flag for this because "A union for which objects or pointers are
3031 declared is not an anonymous union" [class.union]. */
3032 #define ANON_AGGR_TYPE_P(NODE) \
3033 (CLASS_TYPE_P (NODE) && LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr)
3034 #define SET_ANON_AGGR_TYPE_P(NODE) \
3035 (LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr = 1)
3037 /* Nonzero if TYPE is an anonymous union type. */
3038 #define ANON_UNION_TYPE_P(NODE) \
3039 (TREE_CODE (NODE) == UNION_TYPE && ANON_AGGR_TYPE_P (NODE))
3041 #define UNKNOWN_TYPE LANG_TYPE
3043 /* Define fields and accessors for nodes representing declared names. */
3045 #define TYPE_WAS_ANONYMOUS(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->was_anonymous)
3047 /* C++: all of these are overloaded! These apply only to TYPE_DECLs. */
3049 /* The format of each node in the DECL_FRIENDLIST is as follows:
3051 The TREE_PURPOSE will be the name of a function, i.e., an
3052 IDENTIFIER_NODE. The TREE_VALUE will be itself a TREE_LIST, whose
3053 TREE_VALUEs are friends with the given name. */
3054 #define DECL_FRIENDLIST(NODE) (DECL_INITIAL (NODE))
3055 #define FRIEND_NAME(LIST) (TREE_PURPOSE (LIST))
3056 #define FRIEND_DECLS(LIST) (TREE_VALUE (LIST))
3058 /* The DECL_ACCESS, if non-NULL, is a TREE_LIST. The TREE_PURPOSE of
3059 each node is a type; the TREE_VALUE is the access granted for this
3060 DECL in that type. The DECL_ACCESS is set by access declarations.
3061 For example, if a member that would normally be public in a
3062 derived class is made protected, then the derived class and the
3063 protected_access_node will appear in the DECL_ACCESS for the node. */
3064 #define DECL_ACCESS(NODE) (LANG_DECL_U2_CHECK (NODE, 0)->access)
3066 /* Nonzero if the FUNCTION_DECL is a global constructor. */
3067 #define DECL_GLOBAL_CTOR_P(NODE) \
3068 (DECL_LANG_SPECIFIC (NODE)->decl_flags.global_ctor_p)
3070 /* Nonzero if the FUNCTION_DECL is a global destructor. */
3071 #define DECL_GLOBAL_DTOR_P(NODE) \
3072 (DECL_LANG_SPECIFIC (NODE)->decl_flags.global_dtor_p)
3074 /* Accessor macros for C++ template decl nodes. */
3076 /* The DECL_TEMPLATE_PARMS are a list. The TREE_PURPOSE of each node
3077 is a INT_CST whose TREE_INT_CST_LOW indicates the level of the
3078 template parameters, with 1 being the outermost set of template
3079 parameters. The TREE_VALUE is a vector, whose elements are the
3080 template parameters at each level. Each element in the vector is a
3081 TREE_LIST, whose TREE_VALUE is a PARM_DECL (if the parameter is a
3082 non-type parameter), or a TYPE_DECL (if the parameter is a type
3083 parameter). The TREE_PURPOSE is the default value, if any. The
3084 TEMPLATE_PARM_INDEX for the parameter is available as the
3085 DECL_INITIAL (for a PARM_DECL) or as the TREE_TYPE (for a
3087 #define DECL_TEMPLATE_PARMS(NODE) DECL_NON_COMMON_CHECK (NODE)->decl_non_common.arguments
3088 #define DECL_INNERMOST_TEMPLATE_PARMS(NODE) \
3089 INNERMOST_TEMPLATE_PARMS (DECL_TEMPLATE_PARMS (NODE))
3090 #define DECL_NTPARMS(NODE) \
3091 TREE_VEC_LENGTH (DECL_INNERMOST_TEMPLATE_PARMS (NODE))
3092 /* For function, method, class-data templates. */
3093 #define DECL_TEMPLATE_RESULT(NODE) DECL_RESULT_FLD (NODE)
3094 /* For a static member variable template, the
3095 DECL_TEMPLATE_INSTANTIATIONS list contains the explicitly and
3096 implicitly generated instantiations of the variable. There are no
3097 partial instantiations of static member variables, so all of these
3098 will be full instantiations.
3100 For a class template the DECL_TEMPLATE_INSTANTIATIONS lists holds
3101 all instantiations and specializations of the class type, including
3102 partial instantiations and partial specializations.
3104 In both cases, the TREE_PURPOSE of each node contains the arguments
3105 used; the TREE_VALUE contains the generated variable. The template
3106 arguments are always complete. For example, given:
3108 template <class T> struct S1 {
3109 template <class U> struct S2 {};
3110 template <class U> struct S2<U*> {};
3113 the record for the partial specialization will contain, as its
3114 argument list, { {T}, {U*} }, and will be on the
3115 DECL_TEMPLATE_INSTANTIATIONS list for `template <class T> template
3116 <class U> struct S1<T>::S2'.
3118 This list is not used for function templates. */
3119 #define DECL_TEMPLATE_INSTANTIATIONS(NODE) DECL_VINDEX (NODE)
3120 /* For a function template, the DECL_TEMPLATE_SPECIALIZATIONS lists
3121 contains all instantiations and specializations of the function,
3122 including partial instantiations. For a partial instantiation
3123 which is a specialization, this list holds only full
3124 specializations of the template that are instantiations of the
3125 partial instantiation. For example, given:
3127 template <class T> struct S {
3128 template <class U> void f(U);
3129 template <> void f(T);
3132 the `S<int>::f<int>(int)' function will appear on the
3133 DECL_TEMPLATE_SPECIALIZATIONS list for both `template <class T>
3134 template <class U> void S<T>::f(U)' and `template <class T> void
3135 S<int>::f(T)'. In the latter case, however, it will have only the
3136 innermost set of arguments (T, in this case). The DECL_TI_TEMPLATE
3137 for the function declaration will point at the specialization, not
3138 the fully general template.
3140 For a class template, this list contains the partial
3141 specializations of this template. (Full specializations are not
3142 recorded on this list.) The TREE_PURPOSE holds the arguments used
3143 in the partial specialization (e.g., for `template <class T> struct
3144 S<T*, int>' this will be `T*'.) The arguments will also include
3145 any outer template arguments. The TREE_VALUE holds the innermost
3146 template parameters for the specialization (e.g., `T' in the
3147 example above.) The TREE_TYPE is the _TYPE node for the partial
3150 This list is not used for static variable templates. */
3151 #define DECL_TEMPLATE_SPECIALIZATIONS(NODE) DECL_SIZE (NODE)
3153 /* Nonzero for a DECL which is actually a template parameter. Keep
3154 these checks in ascending tree code order. */
3155 #define DECL_TEMPLATE_PARM_P(NODE) \
3156 (DECL_LANG_FLAG_0 (NODE) \
3157 && (TREE_CODE (NODE) == CONST_DECL \
3158 || TREE_CODE (NODE) == PARM_DECL \
3159 || TREE_CODE (NODE) == TYPE_DECL \
3160 || TREE_CODE (NODE) == TEMPLATE_DECL))
3162 /* Mark NODE as a template parameter. */
3163 #define SET_DECL_TEMPLATE_PARM_P(NODE) \
3164 (DECL_LANG_FLAG_0 (NODE) = 1)
3166 /* Nonzero if NODE is a template template parameter. */
3167 #define DECL_TEMPLATE_TEMPLATE_PARM_P(NODE) \
3168 (TREE_CODE (NODE) == TEMPLATE_DECL && DECL_TEMPLATE_PARM_P (NODE))
3170 /* Nonzero if NODE is a TEMPLATE_DECL representing an
3171 UNBOUND_CLASS_TEMPLATE tree node. */
3172 #define DECL_UNBOUND_CLASS_TEMPLATE_P(NODE) \
3173 (TREE_CODE (NODE) == TEMPLATE_DECL && !DECL_TEMPLATE_RESULT (NODE))
3175 #define DECL_FUNCTION_TEMPLATE_P(NODE) \
3176 (TREE_CODE (NODE) == TEMPLATE_DECL \
3177 && !DECL_UNBOUND_CLASS_TEMPLATE_P (NODE) \
3178 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == FUNCTION_DECL)
3180 /* Nonzero for a DECL that represents a template class. */
3181 #define DECL_CLASS_TEMPLATE_P(NODE) \
3182 (TREE_CODE (NODE) == TEMPLATE_DECL \
3183 && !DECL_UNBOUND_CLASS_TEMPLATE_P (NODE) \
3184 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == TYPE_DECL \
3185 && !DECL_TEMPLATE_TEMPLATE_PARM_P (NODE))
3187 /* Nonzero if NODE which declares a type. */
3188 #define DECL_DECLARES_TYPE_P(NODE) \
3189 (TREE_CODE (NODE) == TYPE_DECL || DECL_CLASS_TEMPLATE_P (NODE))
3191 /* Nonzero if NODE is the typedef implicitly generated for a type when
3192 the type is declared. In C++, `struct S {};' is roughly
3193 equivalent to `struct S {}; typedef struct S S;' in C.
3194 DECL_IMPLICIT_TYPEDEF_P will hold for the typedef indicated in this
3195 example. In C++, there is a second implicit typedef for each
3196 class, in the scope of `S' itself, so that you can say `S::S'.
3197 DECL_SELF_REFERENCE_P will hold for that second typedef. */
3198 #define DECL_IMPLICIT_TYPEDEF_P(NODE) \
3199 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_2 (NODE))
3200 #define SET_DECL_IMPLICIT_TYPEDEF_P(NODE) \
3201 (DECL_LANG_FLAG_2 (NODE) = 1)
3202 #define DECL_SELF_REFERENCE_P(NODE) \
3203 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_4 (NODE))
3204 #define SET_DECL_SELF_REFERENCE_P(NODE) \
3205 (DECL_LANG_FLAG_4 (NODE) = 1)
3207 /* A `primary' template is one that has its own template header. A
3208 member function of a class template is a template, but not primary.
3209 A member template is primary. Friend templates are primary, too. */
3211 /* Returns the primary template corresponding to these parameters. */
3212 #define DECL_PRIMARY_TEMPLATE(NODE) \
3213 (TREE_TYPE (DECL_INNERMOST_TEMPLATE_PARMS (NODE)))
3215 /* Returns nonzero if NODE is a primary template. */
3216 #define PRIMARY_TEMPLATE_P(NODE) (DECL_PRIMARY_TEMPLATE (NODE) == (NODE))
3218 /* Nonzero iff NODE is a specialization of a template. The value
3219 indicates the type of specializations:
3221 1=implicit instantiation
3223 2=partial or explicit specialization, e.g.:
3225 template <> int min<int> (int, int),
3227 3=explicit instantiation, e.g.:
3229 template int min<int> (int, int);
3231 Note that NODE will be marked as a specialization even if the
3232 template it is instantiating is not a primary template. For
3235 template <typename T> struct O {
3240 both O<int>::f and O<int>::I will be marked as instantiations.
3242 If DECL_USE_TEMPLATE is nonzero, then DECL_TEMPLATE_INFO will also
3244 #define DECL_USE_TEMPLATE(NODE) (DECL_LANG_SPECIFIC (NODE)->decl_flags.use_template)
3246 /* Like DECL_USE_TEMPLATE, but for class types. */
3247 #define CLASSTYPE_USE_TEMPLATE(NODE) \
3248 (LANG_TYPE_CLASS_CHECK (NODE)->use_template)
3250 /* True if NODE is a specialization of a primary template. */
3251 #define CLASSTYPE_SPECIALIZATION_OF_PRIMARY_TEMPLATE_P(NODE) \
3252 (CLASS_TYPE_P (NODE) \
3253 && CLASSTYPE_USE_TEMPLATE (NODE) \
3254 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (arg)))
3256 #define DECL_TEMPLATE_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) & 1)
3257 #define CLASSTYPE_TEMPLATE_INSTANTIATION(NODE) \
3258 (CLASSTYPE_USE_TEMPLATE (NODE) & 1)
3260 #define DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) == 2)
3261 #define SET_DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) = 2)
3263 /* Returns true for an explicit or partial specialization of a class
3265 #define CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
3266 (CLASSTYPE_USE_TEMPLATE (NODE) == 2)
3267 #define SET_CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
3268 (CLASSTYPE_USE_TEMPLATE (NODE) = 2)
3270 #define DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 1)
3271 #define SET_DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 1)
3272 #define CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
3273 (CLASSTYPE_USE_TEMPLATE (NODE) == 1)
3274 #define SET_CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
3275 (CLASSTYPE_USE_TEMPLATE (NODE) = 1)
3277 #define DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 3)
3278 #define SET_DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 3)
3279 #define CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
3280 (CLASSTYPE_USE_TEMPLATE (NODE) == 3)
3281 #define SET_CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
3282 (CLASSTYPE_USE_TEMPLATE (NODE) = 3)
3284 /* Nonzero if DECL is a friend function which is an instantiation
3285 from the point of view of the compiler, but not from the point of
3286 view of the language. For example given:
3287 template <class T> struct S { friend void f(T) {}; };
3288 the declaration of `void f(int)' generated when S<int> is
3289 instantiated will not be a DECL_TEMPLATE_INSTANTIATION, but will be
3290 a DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION. */
3291 #define DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION(DECL) \
3292 (DECL_TEMPLATE_INFO (DECL) && !DECL_USE_TEMPLATE (DECL))
3294 /* Nonzero iff we are currently processing a declaration for an
3295 entity with its own template parameter list, and which is not a
3296 full specialization. */
3297 #define PROCESSING_REAL_TEMPLATE_DECL_P() \
3298 (processing_template_decl > template_class_depth (current_scope ()))
3300 /* Nonzero if this VAR_DECL or FUNCTION_DECL has already been
3301 instantiated, i.e. its definition has been generated from the
3302 pattern given in the template. */
3303 #define DECL_TEMPLATE_INSTANTIATED(NODE) \
3304 DECL_LANG_FLAG_1 (VAR_OR_FUNCTION_DECL_CHECK (NODE))
3306 /* We know what we're doing with this decl now. */
3307 #define DECL_INTERFACE_KNOWN(NODE) DECL_LANG_FLAG_5 (NODE)
3309 /* DECL_EXTERNAL must be set on a decl until the decl is actually emitted,
3310 so that assemble_external will work properly. So we have this flag to
3311 tell us whether the decl is really not external.
3313 This flag does not indicate whether or not the decl is defined in the
3314 current translation unit; it indicates whether or not we should emit the
3315 decl at the end of compilation if it is defined and needed. */
3316 #define DECL_NOT_REALLY_EXTERN(NODE) \
3317 (DECL_LANG_SPECIFIC (NODE)->decl_flags.not_really_extern)
3319 #define DECL_REALLY_EXTERN(NODE) \
3320 (DECL_EXTERNAL (NODE) && ! DECL_NOT_REALLY_EXTERN (NODE))
3322 /* A thunk is a stub function.
3324 A thunk is an alternate entry point for an ordinary FUNCTION_DECL.
3325 The address of the ordinary FUNCTION_DECL is given by the
3326 DECL_INITIAL, which is always an ADDR_EXPR whose operand is a
3327 FUNCTION_DECL. The job of the thunk is to either adjust the this
3328 pointer before transferring control to the FUNCTION_DECL, or call
3329 FUNCTION_DECL and then adjust the result value. Note, the result
3330 pointer adjusting thunk must perform a call to the thunked
3331 function, (or be implemented via passing some invisible parameter
3332 to the thunked function, which is modified to perform the
3333 adjustment just before returning).
3335 A thunk may perform either, or both, of the following operations:
3337 o Adjust the this or result pointer by a constant offset.
3338 o Adjust the this or result pointer by looking up a vcall or vbase offset
3341 A this pointer adjusting thunk converts from a base to a derived
3342 class, and hence adds the offsets. A result pointer adjusting thunk
3343 converts from a derived class to a base, and hence subtracts the
3344 offsets. If both operations are performed, then the constant
3345 adjustment is performed first for this pointer adjustment and last
3346 for the result pointer adjustment.
3348 The constant adjustment is given by THUNK_FIXED_OFFSET. If the
3349 vcall or vbase offset is required, THUNK_VIRTUAL_OFFSET is
3350 used. For this pointer adjusting thunks, it is the vcall offset
3351 into the vtable. For result pointer adjusting thunks it is the
3352 binfo of the virtual base to convert to. Use that binfo's vbase
3355 It is possible to have equivalent covariant thunks. These are
3356 distinct virtual covariant thunks whose vbase offsets happen to
3357 have the same value. THUNK_ALIAS is used to pick one as the
3358 canonical thunk, which will get all the this pointer adjusting
3359 thunks attached to it. */
3361 /* An integer indicating how many bytes should be subtracted from the
3362 this or result pointer when this function is called. */
3363 #define THUNK_FIXED_OFFSET(DECL) \
3364 (DECL_LANG_SPECIFIC (THUNK_FUNCTION_CHECK (DECL))->u.f.u5.fixed_offset)
3366 /* A tree indicating how to perform the virtual adjustment. For a this
3367 adjusting thunk it is the number of bytes to be added to the vtable
3368 to find the vcall offset. For a result adjusting thunk, it is the
3369 binfo of the relevant virtual base. If NULL, then there is no
3370 virtual adjust. (The vptr is always located at offset zero from
3371 the this or result pointer.) (If the covariant type is within the
3372 class hierarchy being laid out, the vbase index is not yet known
3373 at the point we need to create the thunks, hence the need to use
3376 #define THUNK_VIRTUAL_OFFSET(DECL) \
3377 (LANG_DECL_U2_CHECK (FUNCTION_DECL_CHECK (DECL), 0)->access)
3379 /* A thunk which is equivalent to another thunk. */
3380 #define THUNK_ALIAS(DECL) \
3381 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->decl_flags.u.template_info)
3383 /* For thunk NODE, this is the FUNCTION_DECL thunked to. It is
3384 possible for the target to be a thunk too. */
3385 #define THUNK_TARGET(NODE) \
3386 (DECL_LANG_SPECIFIC (NODE)->u.f.befriending_classes)
3388 /* True for a SCOPE_REF iff the "template" keyword was used to
3389 indicate that the qualified name denotes a template. */
3390 #define QUALIFIED_NAME_IS_TEMPLATE(NODE) \
3391 (TREE_LANG_FLAG_0 (SCOPE_REF_CHECK (NODE)))
3393 /* True for an OMP_ATOMIC that has dependent parameters. These are stored
3394 as an expr in operand 1, and integer_zero_node in operand 0. */
3395 #define OMP_ATOMIC_DEPENDENT_P(NODE) \
3396 (TREE_CODE (TREE_OPERAND (OMP_ATOMIC_CHECK (NODE), 0)) == INTEGER_CST)
3398 /* Used while gimplifying continue statements bound to OMP_FOR nodes. */
3399 #define OMP_FOR_GIMPLIFYING_P(NODE) \
3400 (TREE_LANG_FLAG_0 (OMP_FOR_CHECK (NODE)))
3402 /* A language-specific token attached to the OpenMP data clauses to
3403 hold code (or code fragments) related to ctors, dtors, and op=.
3404 See semantics.c for details. */
3405 #define CP_OMP_CLAUSE_INFO(NODE) \
3406 TREE_TYPE (OMP_CLAUSE_RANGE_CHECK (NODE, OMP_CLAUSE_PRIVATE, \
3407 OMP_CLAUSE_COPYPRIVATE))
3409 /* These macros provide convenient access to the various _STMT nodes
3410 created when parsing template declarations. */
3411 #define TRY_STMTS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 0)
3412 #define TRY_HANDLERS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 1)
3414 #define EH_SPEC_STMTS(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 0)
3415 #define EH_SPEC_RAISES(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 1)
3417 #define USING_STMT_NAMESPACE(NODE) TREE_OPERAND (USING_STMT_CHECK (NODE), 0)
3419 /* Nonzero if this try block is a function try block. */
3420 #define FN_TRY_BLOCK_P(NODE) TREE_LANG_FLAG_3 (TRY_BLOCK_CHECK (NODE))
3421 #define HANDLER_PARMS(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 0)
3422 #define HANDLER_BODY(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 1)
3423 #define HANDLER_TYPE(NODE) TREE_TYPE (HANDLER_CHECK (NODE))
3425 /* CLEANUP_STMT accessors. The statement(s) covered, the cleanup to run
3426 and the VAR_DECL for which this cleanup exists. */
3427 #define CLEANUP_BODY(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 0)
3428 #define CLEANUP_EXPR(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 1)
3429 #define CLEANUP_DECL(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 2)
3431 /* IF_STMT accessors. These give access to the condition of the if
3432 statement, the then block of the if statement, and the else block
3433 of the if statement if it exists. */
3434 #define IF_COND(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 0)
3435 #define THEN_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 1)
3436 #define ELSE_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 2)
3438 /* WHILE_STMT accessors. These give access to the condition of the
3439 while statement and the body of the while statement, respectively. */
3440 #define WHILE_COND(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 0)
3441 #define WHILE_BODY(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 1)
3443 /* DO_STMT accessors. These give access to the condition of the do
3444 statement and the body of the do statement, respectively. */
3445 #define DO_COND(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 0)
3446 #define DO_BODY(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 1)
3448 /* FOR_STMT accessors. These give access to the init statement,
3449 condition, update expression, and body of the for statement,
3451 #define FOR_INIT_STMT(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 0)
3452 #define FOR_COND(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 1)
3453 #define FOR_EXPR(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 2)
3454 #define FOR_BODY(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 3)
3456 #define SWITCH_STMT_COND(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 0)
3457 #define SWITCH_STMT_BODY(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 1)
3458 #define SWITCH_STMT_TYPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 2)
3460 /* STMT_EXPR accessor. */
3461 #define STMT_EXPR_STMT(NODE) TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0)
3463 /* EXPR_STMT accessor. This gives the expression associated with an
3464 expression statement. */
3465 #define EXPR_STMT_EXPR(NODE) TREE_OPERAND (EXPR_STMT_CHECK (NODE), 0)
3467 /* True if this TARGET_EXPR was created by build_cplus_new, and so we can
3468 discard it if it isn't useful. */
3469 #define TARGET_EXPR_IMPLICIT_P(NODE) \
3470 TREE_LANG_FLAG_0 (TARGET_EXPR_CHECK (NODE))
3472 /* True if this TARGET_EXPR is the result of list-initialization of a
3474 #define TARGET_EXPR_LIST_INIT_P(NODE) \
3475 TREE_LANG_FLAG_1 (TARGET_EXPR_CHECK (NODE))
3477 /* An enumeration of the kind of tags that C++ accepts. */
3479 none_type = 0, /* Not a tag type. */
3480 record_type, /* "struct" types. */
3481 class_type, /* "class" types. */
3482 union_type, /* "union" types. */
3483 enum_type, /* "enum" types. */
3484 typename_type /* "typename" types. */
3487 /* The various kinds of lvalues we distinguish. */
3488 typedef enum cp_lvalue_kind {
3489 clk_none = 0, /* Things that are not an lvalue. */
3490 clk_ordinary = 1, /* An ordinary lvalue. */
3491 clk_rvalueref = 2,/* An rvalue formed using an rvalue reference */
3492 clk_class = 4, /* An rvalue of class-type. */
3493 clk_bitfield = 8, /* An lvalue for a bit-field. */
3494 clk_packed = 16 /* An lvalue for a packed field. */
3497 /* Various kinds of template specialization, instantiation, etc. */
3498 typedef enum tmpl_spec_kind {
3499 tsk_none, /* Not a template at all. */
3500 tsk_invalid_member_spec, /* An explicit member template
3501 specialization, but the enclosing
3502 classes have not all been explicitly
3504 tsk_invalid_expl_inst, /* An explicit instantiation containing
3505 template parameter lists. */
3506 tsk_excessive_parms, /* A template declaration with too many
3507 template parameter lists. */
3508 tsk_insufficient_parms, /* A template declaration with too few
3510 tsk_template, /* A template declaration. */
3511 tsk_expl_spec, /* An explicit specialization. */
3512 tsk_expl_inst /* An explicit instantiation. */
3515 /* The various kinds of access. BINFO_ACCESS depends on these being
3516 two bit quantities. The numerical values are important; they are
3517 used to initialize RTTI data structures, so changing them changes
3519 typedef enum access_kind {
3520 ak_none = 0, /* Inaccessible. */
3521 ak_public = 1, /* Accessible, as a `public' thing. */
3522 ak_protected = 2, /* Accessible, as a `protected' thing. */
3523 ak_private = 3 /* Accessible, as a `private' thing. */
3526 /* The various kinds of special functions. If you add to this list,
3527 you should update special_function_p as well. */
3528 typedef enum special_function_kind {
3529 sfk_none = 0, /* Not a special function. This enumeral
3530 must have value zero; see
3531 special_function_p. */
3532 sfk_constructor, /* A constructor. */
3533 sfk_copy_constructor, /* A copy constructor. */
3534 sfk_assignment_operator, /* An assignment operator. */
3535 sfk_destructor, /* A destructor. */
3536 sfk_complete_destructor, /* A destructor for complete objects. */
3537 sfk_base_destructor, /* A destructor for base subobjects. */
3538 sfk_deleting_destructor, /* A destructor for complete objects that
3539 deletes the object after it has been
3541 sfk_conversion /* A conversion operator. */
3542 } special_function_kind;
3544 /* The various kinds of linkage. From [basic.link],
3546 A name is said to have linkage when it might denote the same
3547 object, reference, function, type, template, namespace or value
3548 as a name introduced in another scope:
3550 -- When a name has external linkage, the entity it denotes can
3551 be referred to from scopes of other translation units or from
3552 other scopes of the same translation unit.
3554 -- When a name has internal linkage, the entity it denotes can
3555 be referred to by names from other scopes in the same
3558 -- When a name has no linkage, the entity it denotes cannot be
3559 referred to by names from other scopes. */
3561 typedef enum linkage_kind {
3562 lk_none, /* No linkage. */
3563 lk_internal, /* Internal linkage. */
3564 lk_external /* External linkage. */
3567 /* Bitmask flags to control type substitution. */
3568 typedef enum tsubst_flags_t {
3569 tf_none = 0, /* nothing special */
3570 tf_error = 1 << 0, /* give error messages */
3571 tf_warning = 1 << 1, /* give warnings too */
3572 tf_ignore_bad_quals = 1 << 2, /* ignore bad cvr qualifiers */
3573 tf_keep_type_decl = 1 << 3, /* retain typedef type decls
3574 (make_typename_type use) */
3575 tf_ptrmem_ok = 1 << 4, /* pointers to member ok (internal
3576 instantiate_type use) */
3577 tf_user = 1 << 5, /* found template must be a user template
3578 (lookup_template_class use) */
3579 tf_conv = 1 << 6, /* We are determining what kind of
3580 conversion might be permissible,
3581 not actually performing the
3583 tf_no_access_control = 1 << 7, /* Do not perform access checks, even
3584 when issuing other errors. */
3585 /* Convenient substitution flags combinations. */
3586 tf_warning_or_error = tf_warning | tf_error
3589 /* The kind of checking we can do looking in a class hierarchy. */
3590 typedef enum base_access {
3591 ba_any = 0, /* Do not check access, allow an ambiguous base,
3592 prefer a non-virtual base */
3593 ba_unique = 1 << 0, /* Must be a unique base. */
3594 ba_check_bit = 1 << 1, /* Check access. */
3595 ba_check = ba_unique | ba_check_bit,
3596 ba_ignore_scope = 1 << 2, /* Ignore access allowed by local scope. */
3597 ba_quiet = 1 << 3 /* Do not issue error messages. */
3600 /* The various kinds of access check during parsing. */
3601 typedef enum deferring_kind {
3602 dk_no_deferred = 0, /* Check access immediately */
3603 dk_deferred = 1, /* Deferred check */
3604 dk_no_check = 2 /* No access check */
3607 /* The kind of base we can find, looking in a class hierarchy.
3608 Values <0 indicate we failed. */
3609 typedef enum base_kind {
3610 bk_inaccessible = -3, /* The base is inaccessible */
3611 bk_ambig = -2, /* The base is ambiguous */
3612 bk_not_base = -1, /* It is not a base */
3613 bk_same_type = 0, /* It is the same type */
3614 bk_proper_base = 1, /* It is a proper base */
3615 bk_via_virtual = 2 /* It is a proper base, but via a virtual
3616 path. This might not be the canonical
3620 /* Node for "pointer to (virtual) function".
3621 This may be distinct from ptr_type_node so gdb can distinguish them. */
3622 #define vfunc_ptr_type_node vtable_entry_type
3625 /* For building calls to `delete'. */
3626 extern GTY(()) tree integer_two_node;
3627 extern GTY(()) tree integer_three_node;
3629 /* The number of function bodies which we are currently processing.
3630 (Zero if we are at namespace scope, one inside the body of a
3631 function, two inside the body of a function in a local class, etc.) */
3632 extern int function_depth;
3636 /* These values are used for the `STRICT' parameter to type_unification and
3637 fn_type_unification. Their meanings are described with the
3638 documentation for fn_type_unification. */
3640 typedef enum unification_kind_t {
3644 } unification_kind_t;
3648 extern int current_class_depth;
3650 /* An array of all local classes present in this translation unit, in
3651 declaration order. */
3652 extern GTY(()) VEC(tree,gc) *local_classes;
3654 /* Here's where we control how name mangling takes place. */
3656 /* Cannot use '$' up front, because this confuses gdb
3657 (names beginning with '$' are gdb-local identifiers).
3659 Note that all forms in which the '$' is significant are long enough
3660 for direct indexing (meaning that if we know there is a '$'
3661 at a particular location, we can index into the string at
3662 any other location that provides distinguishing characters). */
3664 /* Define NO_DOT_IN_LABEL in your favorite tm file if your assembler
3665 doesn't allow '.' in symbol names. */
3666 #ifndef NO_DOT_IN_LABEL
3670 #define AUTO_TEMP_NAME "_.tmp_"
3671 #define VFIELD_BASE ".vf"
3672 #define VFIELD_NAME "_vptr."
3673 #define VFIELD_NAME_FORMAT "_vptr.%s"
3675 #define ANON_AGGRNAME_FORMAT "._%d"
3677 #else /* NO_DOT_IN_LABEL */
3679 #ifndef NO_DOLLAR_IN_LABEL
3683 #define AUTO_TEMP_NAME "_$tmp_"
3684 #define VFIELD_BASE "$vf"
3685 #define VFIELD_NAME "_vptr$"
3686 #define VFIELD_NAME_FORMAT "_vptr$%s"
3687 #define ANON_AGGRNAME_FORMAT "$_%d"
3689 #else /* NO_DOLLAR_IN_LABEL */
3691 #define IN_CHARGE_NAME "__in_chrg"
3692 #define AUTO_TEMP_NAME "__tmp_"
3693 #define TEMP_NAME_P(ID_NODE) \
3694 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, \
3695 sizeof (AUTO_TEMP_NAME) - 1))
3696 #define VTABLE_NAME "__vt_"
3697 #define VTABLE_NAME_P(ID_NODE) \
3698 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VTABLE_NAME, \
3699 sizeof (VTABLE_NAME) - 1))
3700 #define VFIELD_BASE "__vfb"
3701 #define VFIELD_NAME "__vptr_"
3702 #define VFIELD_NAME_P(ID_NODE) \
3703 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, \
3704 sizeof (VFIELD_NAME) - 1))
3705 #define VFIELD_NAME_FORMAT "__vptr_%s"
3707 #define ANON_AGGRNAME_PREFIX "__anon_"
3708 #define ANON_AGGRNAME_P(ID_NODE) \
3709 (!strncmp (IDENTIFIER_POINTER (ID_NODE), ANON_AGGRNAME_PREFIX, \
3710 sizeof (ANON_AGGRNAME_PREFIX) - 1))
3711 #define ANON_AGGRNAME_FORMAT "__anon_%d"
3713 #endif /* NO_DOLLAR_IN_LABEL */
3714 #endif /* NO_DOT_IN_LABEL */
3716 #define THIS_NAME "this"
3718 #define IN_CHARGE_NAME "__in_chrg"
3720 #define VTBL_PTR_TYPE "__vtbl_ptr_type"
3721 #define VTABLE_DELTA_NAME "__delta"
3722 #define VTABLE_PFN_NAME "__pfn"
3724 #if !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL)
3726 #define VTABLE_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == 'v' \
3727 && IDENTIFIER_POINTER (ID_NODE)[2] == 't' \
3728 && IDENTIFIER_POINTER (ID_NODE)[3] == JOINER)
3730 #define TEMP_NAME_P(ID_NODE) \
3731 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, sizeof (AUTO_TEMP_NAME)-1))
3732 #define VFIELD_NAME_P(ID_NODE) \
3733 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, sizeof(VFIELD_NAME)-1))
3735 /* For anonymous aggregate types, we need some sort of name to
3736 hold on to. In practice, this should not appear, but it should
3737 not be harmful if it does. */
3738 #define ANON_AGGRNAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[0] == JOINER \
3739 && IDENTIFIER_POINTER (ID_NODE)[1] == '_')
3740 #endif /* !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) */
3743 /* Nonzero if we're done parsing and into end-of-file activities. */
3747 /* A list of namespace-scope objects which have constructors or
3748 destructors which reside in the global scope. The decl is stored
3749 in the TREE_VALUE slot and the initializer is stored in the
3750 TREE_PURPOSE slot. */
3751 extern GTY(()) tree static_aggregates;
3753 enum overload_flags { NO_SPECIAL = 0, DTOR_FLAG, OP_FLAG, TYPENAME_FLAG };
3755 /* These are uses as bits in flags passed to various functions to
3756 control their behavior. Despite the LOOKUP_ prefix, many of these
3757 do not control name lookup. ??? Functions using these flags should
3758 probably be modified to accept explicit boolean flags for the
3759 behaviors relevant to them. */
3760 /* Check for access violations. */
3761 #define LOOKUP_PROTECT (1 << 0)
3762 /* Complain if no suitable member function matching the arguments is
3764 #define LOOKUP_COMPLAIN (1 << 1)
3765 #define LOOKUP_NORMAL (LOOKUP_PROTECT | LOOKUP_COMPLAIN)
3766 /* Even if the function found by lookup is a virtual function, it
3767 should be called directly. */
3768 #define LOOKUP_NONVIRTUAL (1 << 2)
3769 /* Non-converting (i.e., "explicit") constructors are not tried. */
3770 #define LOOKUP_ONLYCONVERTING (1 << 3)
3771 /* If a temporary is created, it should be created so that it lives
3772 as long as the current variable bindings; otherwise it only lives
3773 until the end of the complete-expression. It also forces
3774 direct-initialization in cases where other parts of the compiler
3775 have already generated a temporary, such as reference
3776 initialization and the catch parameter. */
3777 #define DIRECT_BIND (1 << 4)
3778 /* User-defined conversions are not permitted. (Built-in conversions
3780 #define LOOKUP_NO_CONVERSION (1 << 5)
3781 /* The user has explicitly called a destructor. (Therefore, we do
3782 not need to check that the object is non-NULL before calling the
3784 #define LOOKUP_DESTRUCTOR (1 << 6)
3785 /* Do not permit references to bind to temporaries. */
3786 #define LOOKUP_NO_TEMP_BIND (1 << 7)
3787 /* Do not accept objects, and possibly namespaces. */
3788 #define LOOKUP_PREFER_TYPES (1 << 8)
3789 /* Do not accept objects, and possibly types. */
3790 #define LOOKUP_PREFER_NAMESPACES (1 << 9)
3791 /* Accept types or namespaces. */
3792 #define LOOKUP_PREFER_BOTH (LOOKUP_PREFER_TYPES | LOOKUP_PREFER_NAMESPACES)
3793 /* Return friend declarations and un-declared builtin functions.
3794 (Normally, these entities are registered in the symbol table, but
3795 not found by lookup.) */
3796 #define LOOKUP_HIDDEN (LOOKUP_PREFER_NAMESPACES << 1)
3797 /* Prefer that the lvalue be treated as an rvalue. */
3798 #define LOOKUP_PREFER_RVALUE (LOOKUP_HIDDEN << 1)
3799 /* We're inside an init-list, so narrowing conversions are ill-formed. */
3800 #define LOOKUP_NO_NARROWING (LOOKUP_PREFER_RVALUE << 1)
3801 /* Avoid user-defined conversions for the first parameter of a copy
3803 #define LOOKUP_NO_COPY_CTOR_CONVERSION (LOOKUP_NO_NARROWING << 1)
3805 #define LOOKUP_NAMESPACES_ONLY(F) \
3806 (((F) & LOOKUP_PREFER_NAMESPACES) && !((F) & LOOKUP_PREFER_TYPES))
3807 #define LOOKUP_TYPES_ONLY(F) \
3808 (!((F) & LOOKUP_PREFER_NAMESPACES) && ((F) & LOOKUP_PREFER_TYPES))
3809 #define LOOKUP_QUALIFIERS_ONLY(F) ((F) & LOOKUP_PREFER_BOTH)
3812 /* These flags are used by the conversion code.
3813 CONV_IMPLICIT : Perform implicit conversions (standard and user-defined).
3814 CONV_STATIC : Perform the explicit conversions for static_cast.
3815 CONV_CONST : Perform the explicit conversions for const_cast.
3816 CONV_REINTERPRET: Perform the explicit conversions for reinterpret_cast.
3817 CONV_PRIVATE : Perform upcasts to private bases.
3818 CONV_FORCE_TEMP : Require a new temporary when converting to the same
3821 #define CONV_IMPLICIT 1
3822 #define CONV_STATIC 2
3823 #define CONV_CONST 4
3824 #define CONV_REINTERPRET 8
3825 #define CONV_PRIVATE 16
3826 /* #define CONV_NONCONVERTING 32 */
3827 #define CONV_FORCE_TEMP 64
3828 #define CONV_OLD_CONVERT (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
3830 #define CONV_C_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
3831 | CONV_REINTERPRET | CONV_PRIVATE | CONV_FORCE_TEMP)
3833 /* Used by build_expr_type_conversion to indicate which types are
3834 acceptable as arguments to the expression under consideration. */
3836 #define WANT_INT 1 /* integer types, including bool */
3837 #define WANT_FLOAT 2 /* floating point types */
3838 #define WANT_ENUM 4 /* enumerated types */
3839 #define WANT_POINTER 8 /* pointer types */
3840 #define WANT_NULL 16 /* null pointer constant */
3841 #define WANT_VECTOR 32 /* vector types */
3842 #define WANT_ARITH (WANT_INT | WANT_FLOAT | WANT_VECTOR)
3844 /* Used with comptypes, and related functions, to guide type
3847 #define COMPARE_STRICT 0 /* Just check if the types are the
3849 #define COMPARE_BASE 1 /* Check to see if the second type is
3850 derived from the first. */
3851 #define COMPARE_DERIVED 2 /* Like COMPARE_BASE, but in
3853 #define COMPARE_REDECLARATION 4 /* The comparison is being done when
3854 another declaration of an existing
3856 #define COMPARE_STRUCTURAL 8 /* The comparison is intended to be
3857 structural. The actual comparison
3858 will be identical to
3861 /* Used with push_overloaded_decl. */
3862 #define PUSH_GLOBAL 0 /* Push the DECL into namespace scope,
3863 regardless of the current scope. */
3864 #define PUSH_LOCAL 1 /* Push the DECL into the current
3866 #define PUSH_USING 2 /* We are pushing this DECL as the
3867 result of a using declaration. */
3869 /* Used with start function. */
3870 #define SF_DEFAULT 0 /* No flags. */
3871 #define SF_PRE_PARSED 1 /* The function declaration has
3872 already been parsed. */
3873 #define SF_INCLASS_INLINE 2 /* The function is an inline, defined
3874 in the class body. */
3876 /* Used with start_decl's initialized parameter. */
3877 #define SD_UNINITIALIZED 0
3878 #define SD_INITIALIZED 1
3879 #define SD_DEFAULTED 2
3880 #define SD_DELETED 3
3882 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, or if TYPE2
3883 is derived from TYPE1, or if TYPE2 is a pointer (reference) to a
3884 class derived from the type pointed to (referred to) by TYPE1. */
3885 #define same_or_base_type_p(TYPE1, TYPE2) \
3886 comptypes ((TYPE1), (TYPE2), COMPARE_BASE)
3888 /* These macros are used to access a TEMPLATE_PARM_INDEX. */
3889 #define TEMPLATE_PARM_INDEX_CAST(NODE) \
3890 ((template_parm_index*)TEMPLATE_PARM_INDEX_CHECK (NODE))
3891 #define TEMPLATE_PARM_IDX(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->index)
3892 #define TEMPLATE_PARM_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->level)
3893 #define TEMPLATE_PARM_DESCENDANTS(NODE) (TREE_CHAIN (NODE))
3894 #define TEMPLATE_PARM_ORIG_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->orig_level)
3895 #define TEMPLATE_PARM_DECL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->decl)
3896 #define TEMPLATE_PARM_PARAMETER_PACK(NODE) \
3897 (TREE_LANG_FLAG_0 (TEMPLATE_PARM_INDEX_CHECK (NODE)))
3899 /* These macros are for accessing the fields of TEMPLATE_TYPE_PARM,
3900 TEMPLATE_TEMPLATE_PARM and BOUND_TEMPLATE_TEMPLATE_PARM nodes. */
3901 #define TEMPLATE_TYPE_PARM_INDEX(NODE) \
3902 (TREE_CHECK3 ((NODE), TEMPLATE_TYPE_PARM, TEMPLATE_TEMPLATE_PARM, \
3903 BOUND_TEMPLATE_TEMPLATE_PARM))->type.values
3904 #define TEMPLATE_TYPE_IDX(NODE) \
3905 (TEMPLATE_PARM_IDX (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3906 #define TEMPLATE_TYPE_LEVEL(NODE) \
3907 (TEMPLATE_PARM_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3908 #define TEMPLATE_TYPE_ORIG_LEVEL(NODE) \
3909 (TEMPLATE_PARM_ORIG_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3910 #define TEMPLATE_TYPE_DECL(NODE) \
3911 (TEMPLATE_PARM_DECL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3912 #define TEMPLATE_TYPE_PARAMETER_PACK(NODE) \
3913 (TEMPLATE_PARM_PARAMETER_PACK (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3915 /* These constants can used as bit flags in the process of tree formatting.
3917 TFF_PLAIN_IDENTIFIER: unqualified part of a name.
3918 TFF_SCOPE: include the class and namespace scope of the name.
3919 TFF_CHASE_TYPEDEF: print the original type-id instead of the typedef-name.
3920 TFF_DECL_SPECIFIERS: print decl-specifiers.
3921 TFF_CLASS_KEY_OR_ENUM: precede a class-type name (resp. enum name) with
3922 a class-key (resp. `enum').
3923 TFF_RETURN_TYPE: include function return type.
3924 TFF_FUNCTION_DEFAULT_ARGUMENTS: include function default parameter values.
3925 TFF_EXCEPTION_SPECIFICATION: show function exception specification.
3926 TFF_TEMPLATE_HEADER: show the template<...> header in a
3927 template-declaration.
3928 TFF_TEMPLATE_NAME: show only template-name.
3929 TFF_EXPR_IN_PARENS: parenthesize expressions.
3930 TFF_NO_FUNCTION_ARGUMENTS: don't show function arguments.
3931 TFF_UNQUALIFIED_NAME: do not print the qualifying scope of the
3932 top-level entity. */
3934 #define TFF_PLAIN_IDENTIFIER (0)
3935 #define TFF_SCOPE (1)
3936 #define TFF_CHASE_TYPEDEF (1 << 1)
3937 #define TFF_DECL_SPECIFIERS (1 << 2)
3938 #define TFF_CLASS_KEY_OR_ENUM (1 << 3)
3939 #define TFF_RETURN_TYPE (1 << 4)
3940 #define TFF_FUNCTION_DEFAULT_ARGUMENTS (1 << 5)
3941 #define TFF_EXCEPTION_SPECIFICATION (1 << 6)
3942 #define TFF_TEMPLATE_HEADER (1 << 7)
3943 #define TFF_TEMPLATE_NAME (1 << 8)
3944 #define TFF_EXPR_IN_PARENS (1 << 9)
3945 #define TFF_NO_FUNCTION_ARGUMENTS (1 << 10)
3946 #define TFF_UNQUALIFIED_NAME (1 << 11)
3948 /* Returns the TEMPLATE_DECL associated to a TEMPLATE_TEMPLATE_PARM
3950 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_DECL(NODE) \
3951 ((TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM) \
3952 ? TYPE_TI_TEMPLATE (NODE) \
3957 extern void init_reswords (void);
3959 /* Indexed by TREE_CODE, these tables give C-looking names to
3960 operators represented by TREE_CODES. For example,
3961 opname_tab[(int) MINUS_EXPR] == "-". */
3962 extern const char **opname_tab, **assignop_tab;
3964 typedef struct operator_name_info_t GTY(())
3966 /* The IDENTIFIER_NODE for the operator. */
3968 /* The name of the operator. */
3970 /* The mangled name of the operator. */
3971 const char *mangled_name;
3972 /* The arity of the operator. */
3974 } operator_name_info_t;
3976 /* A mapping from tree codes to operator name information. */
3977 extern GTY(()) operator_name_info_t operator_name_info
3978 [(int) MAX_TREE_CODES];
3979 /* Similar, but for assignment operators. */
3980 extern GTY(()) operator_name_info_t assignment_operator_name_info
3981 [(int) MAX_TREE_CODES];
3983 /* A type-qualifier, or bitmask therefore, using the TYPE_QUAL
3986 typedef int cp_cv_quals;
3988 /* A storage class. */
3990 typedef enum cp_storage_class {
3991 /* sc_none must be zero so that zeroing a cp_decl_specifier_seq
3992 sets the storage_class field to sc_none. */
4001 /* An individual decl-specifier. */
4003 typedef enum cp_decl_spec {
4005 ds_signed = ds_first,
4022 /* A decl-specifier-seq. */
4024 typedef struct cp_decl_specifier_seq {
4025 /* The number of times each of the keywords has been seen. */
4026 unsigned specs[(int) ds_last];
4027 /* The primary type, if any, given by the decl-specifier-seq.
4028 Modifiers, like "short", "const", and "unsigned" are not
4029 reflected here. This field will be a TYPE, unless a typedef-name
4030 was used, in which case it will be a TYPE_DECL. */
4032 /* The location of the primary type. Mainly used for error
4034 location_t type_location;
4035 /* The attributes, if any, provided with the specifier sequence. */
4037 /* If non-NULL, a built-in type that the user attempted to redefine
4038 to some other type. */
4039 tree redefined_builtin_type;
4040 /* The storage class specified -- or sc_none if no storage class was
4041 explicitly specified. */
4042 cp_storage_class storage_class;
4043 /* True iff TYPE_SPEC indicates a user-defined type. */
4044 BOOL_BITFIELD user_defined_type_p : 1;
4045 /* True iff multiple types were (erroneously) specified for this
4046 decl-specifier-seq. */
4047 BOOL_BITFIELD multiple_types_p : 1;
4048 /* True iff multiple storage classes were (erroneously) specified
4049 for this decl-specifier-seq or a combination of a storage class
4050 with a typedef specifier. */
4051 BOOL_BITFIELD conflicting_specifiers_p : 1;
4052 /* True iff at least one decl-specifier was found. */
4053 BOOL_BITFIELD any_specifiers_p : 1;
4054 /* True iff "int" was explicitly provided. */
4055 BOOL_BITFIELD explicit_int_p : 1;
4056 /* True iff "char" was explicitly provided. */
4057 BOOL_BITFIELD explicit_char_p : 1;
4058 } cp_decl_specifier_seq;
4060 /* The various kinds of declarators. */
4062 typedef enum cp_declarator_kind {
4070 } cp_declarator_kind;
4074 typedef struct cp_declarator cp_declarator;
4076 typedef struct cp_parameter_declarator cp_parameter_declarator;
4078 /* A parameter, before it has been semantically analyzed. */
4079 struct cp_parameter_declarator {
4080 /* The next parameter, or NULL_TREE if none. */
4081 cp_parameter_declarator *next;
4082 /* The decl-specifiers-seq for the parameter. */
4083 cp_decl_specifier_seq decl_specifiers;
4084 /* The declarator for the parameter. */
4085 cp_declarator *declarator;
4086 /* The default-argument expression, or NULL_TREE, if none. */
4087 tree default_argument;
4088 /* True iff this is the first parameter in the list and the
4089 parameter sequence ends with an ellipsis. */
4094 struct cp_declarator {
4095 /* The kind of declarator. */
4096 ENUM_BITFIELD (cp_declarator_kind) kind : 4;
4097 /* Whether we parsed an ellipsis (`...') just before the declarator,
4098 to indicate this is a parameter pack. */
4099 BOOL_BITFIELD parameter_pack_p : 1;
4100 /* Attributes that apply to this declarator. */
4102 /* For all but cdk_id and cdk_error, the contained declarator. For
4103 cdk_id and cdk_error, guaranteed to be NULL. */
4104 cp_declarator *declarator;
4105 location_t id_loc; /* Currently only set for cdk_id and cdk_function. */
4107 /* For identifiers. */
4109 /* If non-NULL, the qualifying scope (a NAMESPACE_DECL or
4110 *_TYPE) for this identifier. */
4111 tree qualifying_scope;
4112 /* The unqualified name of the entity -- an IDENTIFIER_NODE,
4113 BIT_NOT_EXPR, or TEMPLATE_ID_EXPR. */
4114 tree unqualified_name;
4115 /* If this is the name of a function, what kind of special
4116 function (if any). */
4117 special_function_kind sfk;
4119 /* For functions. */
4121 /* The parameters to the function as a TREE_LIST of decl/default. */
4123 /* The cv-qualifiers for the function. */
4124 cp_cv_quals qualifiers;
4125 /* The exception-specification for the function. */
4126 tree exception_specification;
4127 /* The late-specified return type, if any. */
4128 tree late_return_type;
4132 /* The bounds to the array. */
4135 /* For cdk_pointer and cdk_ptrmem. */
4137 /* The cv-qualifiers for the pointer. */
4138 cp_cv_quals qualifiers;
4139 /* For cdk_ptrmem, the class type containing the member. */
4142 /* For cdk_reference */
4144 /* The cv-qualifiers for the reference. These qualifiers are
4145 only used to diagnose ill-formed code. */
4146 cp_cv_quals qualifiers;
4147 /* Whether this is an rvalue reference */
4153 /* A level of template instantiation. */
4154 struct tinst_level GTY(())
4156 /* The immediately deeper level in the chain. */
4157 struct tinst_level *next;
4159 /* The original node. Can be either a DECL (for a function or static
4160 data member) or a TYPE (for a class), depending on what we were
4161 asked to instantiate. */
4164 /* The location where the template is instantiated. */
4167 /* True if the location is in a system header. */
4168 bool in_system_header_p;
4171 /* A parameter list indicating for a function with no parameters,
4172 e.g "int f(void)". */
4173 extern cp_parameter_declarator *no_parameters;
4175 /* True if we saw "#pragma GCC java_exceptions". */
4176 extern bool pragma_java_exceptions;
4179 extern bool check_dtor_name (tree, tree);
4181 extern tree build_vfield_ref (tree, tree);
4182 extern tree build_conditional_expr (tree, tree, tree,
4184 extern tree build_addr_func (tree);
4185 extern tree build_call_a (tree, int, tree*);
4186 extern tree build_call_n (tree, int, ...);
4187 extern bool null_ptr_cst_p (tree);
4188 extern bool sufficient_parms_p (const_tree);
4189 extern tree type_decays_to (tree);
4190 extern tree build_user_type_conversion (tree, tree, int);
4191 extern tree build_new_function_call (tree, tree, bool,
4193 extern tree build_operator_new_call (tree, tree, tree *, tree *,
4195 extern tree build_new_method_call (tree, tree, tree, tree, int,
4196 tree *, tsubst_flags_t);
4197 extern tree build_special_member_call (tree, tree, tree, tree, int,
4199 extern tree build_new_op (enum tree_code, int, tree,
4202 extern tree build_op_delete_call (enum tree_code, tree, tree, bool, tree, tree);
4203 extern bool can_convert (tree, tree);
4204 extern bool can_convert_arg (tree, tree, tree, int);
4205 extern bool can_convert_arg_bad (tree, tree, tree);
4206 extern bool enforce_access (tree, tree, tree);
4207 extern tree convert_default_arg (tree, tree, tree, int);
4208 extern tree convert_arg_to_ellipsis (tree);
4209 extern tree build_x_va_arg (tree, tree);
4210 extern tree cxx_type_promotes_to (tree);
4211 extern tree type_passed_as (tree);
4212 extern tree convert_for_arg_passing (tree, tree);
4213 extern bool is_properly_derived_from (tree, tree);
4214 extern tree set_up_extended_ref_temp (tree, tree, tree *, tree *);
4215 extern tree initialize_reference (tree, tree, tree, tree *);
4216 extern tree make_temporary_var_for_ref_to_temp (tree, tree);
4217 extern tree strip_top_quals (tree);
4218 extern tree perform_implicit_conversion (tree, tree, tsubst_flags_t);
4219 extern tree perform_direct_initialization_if_possible (tree, tree, bool,
4221 extern tree in_charge_arg_for_name (tree);
4222 extern tree build_cxx_call (tree, int, tree *);
4223 extern bool is_std_init_list (tree);
4224 extern bool is_list_ctor (tree);
4225 #ifdef ENABLE_CHECKING
4226 extern void validate_conversion_obstack (void);
4227 #endif /* ENABLE_CHECKING */
4230 extern tree build_base_path (enum tree_code, tree,
4232 extern tree convert_to_base (tree, tree, bool, bool);
4233 extern tree convert_to_base_statically (tree, tree);
4234 extern tree build_vtbl_ref (tree, tree);
4235 extern tree build_vfn_ref (tree, tree);
4236 extern tree get_vtable_decl (tree, int);
4237 extern void resort_type_method_vec (void *, void *,
4238 gt_pointer_operator, void *);
4239 extern bool add_method (tree, tree, tree);
4240 extern bool currently_open_class (tree);
4241 extern tree currently_open_derived_class (tree);
4242 extern tree finish_struct (tree, tree);
4243 extern void finish_struct_1 (tree);
4244 extern int resolves_to_fixed_type_p (tree, int *);
4245 extern void init_class_processing (void);
4246 extern int is_empty_class (tree);
4247 extern bool is_really_empty_class (tree);
4248 extern void pushclass (tree);
4249 extern void popclass (void);
4250 extern void push_nested_class (tree);
4251 extern void pop_nested_class (void);
4252 extern int current_lang_depth (void);
4253 extern void push_lang_context (tree);
4254 extern void pop_lang_context (void);
4255 extern tree instantiate_type (tree, tree, tsubst_flags_t);
4256 extern void print_class_statistics (void);
4257 extern void cxx_print_statistics (void);
4258 extern void cxx_print_xnode (FILE *, tree, int);
4259 extern void cxx_print_decl (FILE *, tree, int);
4260 extern void cxx_print_type (FILE *, tree, int);
4261 extern void cxx_print_identifier (FILE *, tree, int);
4262 extern void cxx_print_error_function (struct diagnostic_context *,
4264 struct diagnostic_info *);
4265 extern void build_self_reference (void);
4266 extern int same_signature_p (const_tree, const_tree);
4267 extern void maybe_add_class_template_decl_list (tree, tree, int);
4268 extern void unreverse_member_declarations (tree);
4269 extern void invalidate_class_lookup_cache (void);
4270 extern void maybe_note_name_used_in_class (tree, tree);
4271 extern void note_name_declared_in_class (tree, tree);
4272 extern tree get_vtbl_decl_for_binfo (tree);
4273 extern void debug_class (tree);
4274 extern void debug_thunks (tree);
4275 extern tree cp_fold_obj_type_ref (tree, tree);
4276 extern void set_linkage_according_to_type (tree, tree);
4277 extern void determine_key_method (tree);
4278 extern void check_for_override (tree, tree);
4279 extern void push_class_stack (void);
4280 extern void pop_class_stack (void);
4281 extern bool type_has_user_nondefault_constructor (tree);
4282 extern bool type_has_user_provided_constructor (tree);
4283 extern bool type_has_user_provided_default_constructor (tree);
4284 extern bool defaultable_fn_p (tree);
4287 extern tree convert_to_reference (tree, tree, int, int, tree);
4288 extern tree convert_from_reference (tree);
4289 extern tree force_rvalue (tree);
4290 extern tree ocp_convert (tree, tree, int, int);
4291 extern tree cp_convert (tree, tree);
4292 extern tree cp_convert_and_check (tree, tree);
4293 extern tree convert_to_void (tree, const char */*implicit context*/,
4295 extern tree convert_force (tree, tree, int);
4296 extern tree build_expr_type_conversion (int, tree, bool);
4297 extern tree type_promotes_to (tree);
4298 extern tree perform_qualification_conversions (tree, tree);
4299 extern void clone_function_decl (tree, int);
4300 extern void adjust_clone_args (tree);
4303 extern tree poplevel (int, int, int);
4304 extern void insert_block (tree);
4305 extern tree pushdecl (tree);
4306 extern tree pushdecl_maybe_friend (tree, bool);
4307 extern void cxx_init_decl_processing (void);
4308 enum cp_tree_node_structure_enum cp_tree_node_structure
4309 (union lang_tree_node *);
4310 extern bool cxx_mark_addressable (tree);
4311 extern void maybe_push_cleanup_level (tree);
4312 extern void finish_scope (void);
4313 extern void push_switch (tree);
4314 extern void pop_switch (void);
4315 extern tree pushtag (tree, tree, tag_scope);
4316 extern tree make_anon_name (void);
4317 extern int decls_match (tree, tree);
4318 extern tree duplicate_decls (tree, tree, bool);
4319 extern tree pushdecl_top_level_maybe_friend (tree, bool);
4320 extern tree pushdecl_top_level_and_finish (tree, tree);
4321 extern tree declare_local_label (tree);
4322 extern tree define_label (location_t, tree);
4323 extern void check_goto (tree);
4324 extern bool check_omp_return (void);
4325 extern tree make_typename_type (tree, tree, enum tag_types, tsubst_flags_t);
4326 extern tree make_unbound_class_template (tree, tree, tree, tsubst_flags_t);
4327 extern tree check_for_out_of_scope_variable (tree);
4328 extern tree build_library_fn_ptr (const char *, tree);
4329 extern tree build_cp_library_fn_ptr (const char *, tree);
4330 extern tree push_library_fn (tree, tree, tree);
4331 extern tree push_void_library_fn (tree, tree);
4332 extern tree push_throw_library_fn (tree, tree);
4333 extern tree check_tag_decl (cp_decl_specifier_seq *);
4334 extern tree shadow_tag (cp_decl_specifier_seq *);
4335 extern tree groktypename (cp_decl_specifier_seq *, const cp_declarator *, bool);
4336 extern tree start_decl (const cp_declarator *, cp_decl_specifier_seq *, int, tree, tree, tree *);
4337 extern void start_decl_1 (tree, bool);
4338 extern bool check_array_initializer (tree, tree, tree);
4339 extern void cp_finish_decl (tree, tree, bool, tree, int);
4340 extern void finish_decl (tree, tree, tree);
4341 extern int cp_complete_array_type (tree *, tree, bool);
4342 extern tree build_ptrmemfunc_type (tree);
4343 extern tree build_ptrmem_type (tree, tree);
4344 /* the grokdeclarator prototype is in decl.h */
4345 extern tree build_this_parm (tree, cp_cv_quals);
4346 extern int copy_fn_p (const_tree);
4347 extern bool move_fn_p (const_tree);
4348 extern tree get_scope_of_declarator (const cp_declarator *);
4349 extern void grok_special_member_properties (tree);
4350 extern int grok_ctor_properties (const_tree, const_tree);
4351 extern bool grok_op_properties (tree, bool);
4352 extern tree xref_tag (enum tag_types, tree, tag_scope, bool);
4353 extern tree xref_tag_from_type (tree, tree, tag_scope);
4354 extern bool xref_basetypes (tree, tree);
4355 extern tree start_enum (tree, tree, bool);
4356 extern void finish_enum (tree);
4357 extern void build_enumerator (tree, tree, tree);
4358 extern tree lookup_enumerator (tree, tree);
4359 extern void start_preparsed_function (tree, tree, int);
4360 extern int start_function (cp_decl_specifier_seq *, const cp_declarator *, tree);
4361 extern tree begin_function_body (void);
4362 extern void finish_function_body (tree);
4363 extern tree outer_curly_brace_block (tree);
4364 extern tree finish_function (int);
4365 extern tree start_method (cp_decl_specifier_seq *, const cp_declarator *, tree);
4366 extern tree finish_method (tree);
4367 extern void maybe_register_incomplete_var (tree);
4368 extern void maybe_commonize_var (tree);
4369 extern void complete_vars (tree);
4370 extern void finish_stmt (void);
4371 extern void print_other_binding_stack (struct cp_binding_level *);
4372 extern void revert_static_member_fn (tree);
4373 extern void fixup_anonymous_aggr (tree);
4374 extern int check_static_variable_definition (tree, tree);
4375 extern tree compute_array_index_type (tree, tree);
4376 extern tree check_default_argument (tree, tree);
4377 typedef int (*walk_namespaces_fn) (tree, void *);
4378 extern int walk_namespaces (walk_namespaces_fn,
4380 extern int wrapup_globals_for_namespace (tree, void *);
4381 extern tree create_implicit_typedef (tree, tree);
4382 extern tree maybe_push_decl (tree);
4383 extern tree force_target_expr (tree, tree);
4384 extern tree build_target_expr_with_type (tree, tree);
4385 extern int local_variable_p (const_tree);
4386 extern tree register_dtor_fn (tree);
4387 extern tmpl_spec_kind current_tmpl_spec_kind (int);
4388 extern tree cp_fname_init (const char *, tree *);
4389 extern tree cxx_builtin_function (tree decl);
4390 extern tree cxx_builtin_function_ext_scope (tree decl);
4391 extern tree check_elaborated_type_specifier (enum tag_types, tree, bool);
4392 extern void warn_extern_redeclared_static (tree, tree);
4393 extern const char *cxx_comdat_group (tree);
4394 extern bool cp_missing_noreturn_ok_p (tree);
4395 extern void initialize_artificial_var (tree, tree);
4396 extern tree check_var_type (tree, tree);
4397 extern tree reshape_init (tree, tree);
4399 extern bool defer_mark_used_calls;
4400 extern GTY(()) VEC(tree, gc) *deferred_mark_used_calls;
4403 extern bool check_java_method (tree);
4404 extern tree build_memfn_type (tree, tree, cp_cv_quals);
4405 extern void maybe_retrofit_in_chrg (tree);
4406 extern void maybe_make_one_only (tree);
4407 extern void grokclassfn (tree, tree,
4408 enum overload_flags);
4409 extern tree grok_array_decl (tree, tree);
4410 extern tree delete_sanity (tree, tree, bool, int);
4411 extern tree check_classfn (tree, tree, tree);
4412 extern void check_member_template (tree);
4413 extern tree grokfield (const cp_declarator *, cp_decl_specifier_seq *,
4414 tree, bool, tree, tree);
4415 extern tree grokbitfield (const cp_declarator *, cp_decl_specifier_seq *,
4417 extern tree cp_reconstruct_complex_type (tree, tree);
4418 extern void cplus_decl_attributes (tree *, tree, int);
4419 extern void finish_anon_union (tree);
4420 extern void cp_write_global_declarations (void);
4421 extern tree coerce_new_type (tree);
4422 extern tree coerce_delete_type (tree);
4423 extern void comdat_linkage (tree);
4424 extern void determine_visibility (tree);
4425 extern void constrain_class_visibility (tree);
4426 extern void update_member_visibility (tree);
4427 extern void import_export_decl (tree);
4428 extern tree build_cleanup (tree);
4429 extern tree build_offset_ref_call_from_tree (tree, tree);
4430 extern void check_default_args (tree);
4431 extern void mark_used (tree);
4432 extern void finish_static_data_member_decl (tree, tree, bool, tree, int);
4433 extern tree cp_build_parm_decl (tree, tree);
4434 extern tree get_guard (tree);
4435 extern tree get_guard_cond (tree);
4436 extern tree set_guard (tree);
4437 extern tree cxx_callgraph_analyze_expr (tree *, int *);
4438 extern void mark_needed (tree);
4439 extern bool decl_needed_p (tree);
4440 extern void note_vague_linkage_fn (tree);
4441 extern tree build_artificial_parm (tree, tree);
4442 extern bool possibly_inlined_p (tree);
4443 extern int parm_index (tree);
4446 extern void init_error (void);
4447 extern const char *type_as_string (tree, int);
4448 extern const char *decl_as_string (tree, int);
4449 extern const char *expr_as_string (tree, int);
4450 extern const char *lang_decl_name (tree, int);
4451 extern const char *language_to_string (enum languages);
4452 extern const char *class_key_or_enum_as_string (tree);
4453 extern void print_instantiation_context (void);
4454 extern void maybe_warn_variadic_templates (void);
4455 extern void maybe_warn_cpp0x (const char *);
4458 extern void init_exception_processing (void);
4459 extern tree expand_start_catch_block (tree);
4460 extern void expand_end_catch_block (void);
4461 extern tree build_exc_ptr (void);
4462 extern tree build_throw (tree);
4463 extern int nothrow_libfn_p (const_tree);
4464 extern void check_handlers (tree);
4465 extern void choose_personality_routine (enum languages);
4466 extern tree eh_type_info (tree);
4469 extern tree cplus_expand_constant (tree);
4472 extern int is_friend (tree, tree);
4473 extern void make_friend_class (tree, tree, bool);
4474 extern void add_friend (tree, tree, bool);
4475 extern tree do_friend (tree, tree, tree, tree, enum overload_flags, bool);
4478 extern tree expand_member_init (tree);
4479 extern void emit_mem_initializers (tree);
4480 extern tree build_aggr_init (tree, tree, int,
4482 extern int is_class_type (tree, int);
4483 extern tree get_type_value (tree);
4484 extern tree build_zero_init (tree, tree, bool);
4485 extern tree build_value_init (tree);
4486 extern tree build_value_init_noctor (tree);
4487 extern tree build_offset_ref (tree, tree, bool);
4488 extern tree build_new (tree, tree, tree, tree, int,
4490 extern tree build_vec_init (tree, tree, tree, bool, int,
4492 extern tree build_delete (tree, tree,
4493 special_function_kind,
4495 extern void push_base_cleanups (void);
4496 extern tree build_vec_delete (tree, tree,
4497 special_function_kind, int);
4498 extern tree create_temporary_var (tree);
4499 extern void initialize_vtbl_ptrs (tree);
4500 extern tree build_java_class_ref (tree);
4501 extern tree integral_constant_value (tree);
4504 extern void cxx_dup_lang_specific_decl (tree);
4505 extern void yyungetc (int, int);
4507 extern tree unqualified_name_lookup_error (tree);
4508 extern tree unqualified_fn_lookup_error (tree);
4509 extern tree build_lang_decl (enum tree_code, tree, tree);
4510 extern void retrofit_lang_decl (tree);
4511 extern tree copy_decl (tree);
4512 extern tree copy_type (tree);
4513 extern tree cxx_make_type (enum tree_code);
4514 extern tree make_class_type (enum tree_code);
4515 extern void yyerror (const char *);
4516 extern void yyhook (int);
4517 extern bool cxx_init (void);
4518 extern void cxx_finish (void);
4519 extern bool in_main_input_context (void);
4522 extern void init_method (void);
4523 extern tree make_thunk (tree, bool, tree, tree);
4524 extern void finish_thunk (tree);
4525 extern void use_thunk (tree, bool);
4526 extern void synthesize_method (tree);
4527 extern tree lazily_declare_fn (special_function_kind,
4529 extern tree skip_artificial_parms_for (const_tree, tree);
4530 extern int num_artificial_parms_for (const_tree);
4531 extern tree make_alias_for (tree, tree);
4532 extern tree locate_copy (tree, void *);
4533 extern tree locate_ctor (tree, void *);
4534 extern tree locate_dtor (tree, void *);
4537 extern bool maybe_clone_body (tree);
4540 extern bool check_template_shadow (tree);
4541 extern tree get_innermost_template_args (tree, int);
4542 extern void maybe_begin_member_template_processing (tree);
4543 extern void maybe_end_member_template_processing (void);
4544 extern tree finish_member_template_decl (tree);
4545 extern void begin_template_parm_list (void);
4546 extern bool begin_specialization (void);
4547 extern void reset_specialization (void);
4548 extern void end_specialization (void);
4549 extern void begin_explicit_instantiation (void);
4550 extern void end_explicit_instantiation (void);
4551 extern tree check_explicit_specialization (tree, tree, int, int);
4552 extern tree make_auto (void);
4553 extern tree do_auto_deduction (tree, tree, tree);
4554 extern tree type_uses_auto (tree);
4555 extern tree splice_late_return_type (tree, tree);
4556 extern bool is_auto (const_tree);
4557 extern tree process_template_parm (tree, tree, bool, bool);
4558 extern tree end_template_parm_list (tree);
4559 extern void end_template_decl (void);
4560 extern bool check_default_tmpl_args (tree, tree, int, int, int);
4561 extern tree push_template_decl (tree);
4562 extern tree push_template_decl_real (tree, bool);
4563 extern bool redeclare_class_template (tree, tree);
4564 extern tree lookup_template_class (tree, tree, tree, tree,
4565 int, tsubst_flags_t);
4566 extern tree lookup_template_function (tree, tree);
4567 extern int uses_template_parms (tree);
4568 extern int uses_template_parms_level (tree, int);
4569 extern tree instantiate_class_template (tree);
4570 extern tree instantiate_template (tree, tree, tsubst_flags_t);
4571 extern int fn_type_unification (tree, tree, tree, tree,
4572 tree, unification_kind_t, int);
4573 extern void mark_decl_instantiated (tree, int);
4574 extern int more_specialized_fn (tree, tree, int);
4575 extern void do_decl_instantiation (tree, tree);
4576 extern void do_type_instantiation (tree, tree, tsubst_flags_t);
4577 extern tree instantiate_decl (tree, int, bool);
4578 extern int comp_template_parms (const_tree, const_tree);
4579 extern bool uses_parameter_packs (tree);
4580 extern bool template_parameter_pack_p (const_tree);
4581 extern tree make_pack_expansion (tree);
4582 extern bool check_for_bare_parameter_packs (tree);
4583 extern tree get_template_info (tree);
4584 extern int template_class_depth (tree);
4585 extern int is_specialization_of (tree, tree);
4586 extern bool is_specialization_of_friend (tree, tree);
4587 extern int comp_template_args (tree, tree);
4588 extern tree maybe_process_partial_specialization (tree);
4589 extern tree most_specialized_instantiation (tree);
4590 extern void print_candidates (tree);
4591 extern void instantiate_pending_templates (int);
4592 extern tree tsubst_default_argument (tree, tree, tree);
4593 extern tree tsubst_copy_and_build (tree, tree, tsubst_flags_t,
4595 extern tree most_general_template (tree);
4596 extern tree get_mostly_instantiated_function_type (tree);
4597 extern int problematic_instantiation_changed (void);
4598 extern void record_last_problematic_instantiation (void);
4599 extern struct tinst_level *current_instantiation(void);
4600 extern tree maybe_get_template_decl_from_type_decl (tree);
4601 extern int processing_template_parmlist;
4602 extern bool dependent_type_p (tree);
4603 extern bool dependent_scope_p (tree);
4604 extern bool any_dependent_template_arguments_p (const_tree);
4605 extern bool dependent_template_p (tree);
4606 extern bool dependent_template_id_p (tree, tree);
4607 extern bool type_dependent_expression_p (tree);
4608 extern bool any_type_dependent_arguments_p (const_tree);
4609 extern bool type_dependent_expression_p_push (tree);
4610 extern bool value_dependent_expression_p (tree);
4611 extern bool any_value_dependent_elements_p (const_tree);
4612 extern bool dependent_omp_for_p (tree, tree, tree, tree);
4613 extern tree resolve_typename_type (tree, bool);
4614 extern tree template_for_substitution (tree);
4615 extern tree build_non_dependent_expr (tree);
4616 extern tree build_non_dependent_args (tree);
4617 extern bool reregister_specialization (tree, tree, tree);
4618 extern tree fold_non_dependent_expr (tree);
4619 extern bool explicit_class_specialization_p (tree);
4620 extern struct tinst_level *outermost_tinst_level(void);
4621 extern bool parameter_of_template_p (tree, tree);
4624 extern void init_repo (void);
4625 extern int repo_emit_p (tree);
4626 extern bool repo_export_class_p (const_tree);
4627 extern void finish_repo (void);
4630 /* A vector of all tinfo decls that haven't been emitted yet. */
4631 extern GTY(()) VEC(tree,gc) *unemitted_tinfo_decls;
4633 extern void init_rtti_processing (void);
4634 extern tree build_typeid (tree);
4635 extern tree get_tinfo_decl (tree);
4636 extern tree get_typeid (tree);
4637 extern tree build_headof (tree);
4638 extern tree build_dynamic_cast (tree, tree, tsubst_flags_t);
4639 extern void emit_support_tinfos (void);
4640 extern bool emit_tinfo_decl (tree);
4643 extern bool accessible_base_p (tree, tree, bool);
4644 extern tree lookup_base (tree, tree, base_access,
4646 extern tree dcast_base_hint (tree, tree);
4647 extern int accessible_p (tree, tree, bool);
4648 extern tree lookup_field_1 (tree, tree, bool);
4649 extern tree lookup_field (tree, tree, int, bool);
4650 extern int lookup_fnfields_1 (tree, tree);
4651 extern int class_method_index_for_fn (tree, tree);
4652 extern tree lookup_fnfields (tree, tree, int);
4653 extern tree lookup_member (tree, tree, int, bool);
4654 extern int look_for_overrides (tree, tree);
4655 extern void get_pure_virtuals (tree);
4656 extern void maybe_suppress_debug_info (tree);
4657 extern void note_debug_info_needed (tree);
4658 extern void print_search_statistics (void);
4659 extern void reinit_search_statistics (void);
4660 extern tree current_scope (void);
4661 extern int at_function_scope_p (void);
4662 extern bool at_class_scope_p (void);
4663 extern bool at_namespace_scope_p (void);
4664 extern tree context_for_name_lookup (tree);
4665 extern tree lookup_conversions (tree);
4666 extern tree binfo_from_vbase (tree);
4667 extern tree binfo_for_vbase (tree, tree);
4668 extern tree look_for_overrides_here (tree, tree);
4669 #define dfs_skip_bases ((tree)1)
4670 extern tree dfs_walk_all (tree, tree (*) (tree, void *),
4671 tree (*) (tree, void *), void *);
4672 extern tree dfs_walk_once (tree, tree (*) (tree, void *),
4673 tree (*) (tree, void *), void *);
4674 extern tree binfo_via_virtual (tree, tree);
4675 extern tree build_baselink (tree, tree, tree, tree);
4676 extern tree adjust_result_of_qualified_name_lookup
4678 extern tree copied_binfo (tree, tree);
4679 extern tree original_binfo (tree, tree);
4680 extern int shared_member_p (tree);
4683 /* The representation of a deferred access check. */
4685 typedef struct deferred_access_check GTY(())
4687 /* The base class in which the declaration is referenced. */
4689 /* The declaration whose access must be checked. */
4691 /* The declaration that should be used in the error message. */
4693 } deferred_access_check;
4694 DEF_VEC_O(deferred_access_check);
4695 DEF_VEC_ALLOC_O(deferred_access_check,gc);
4697 /* in semantics.c */
4698 extern void push_deferring_access_checks (deferring_kind);
4699 extern void resume_deferring_access_checks (void);
4700 extern void stop_deferring_access_checks (void);
4701 extern void pop_deferring_access_checks (void);
4702 extern VEC (deferred_access_check,gc)* get_deferred_access_checks (void);
4703 extern void pop_to_parent_deferring_access_checks (void);
4704 extern void perform_access_checks (VEC (deferred_access_check,gc)*);
4705 extern void perform_deferred_access_checks (void);
4706 extern void perform_or_defer_access_check (tree, tree, tree);
4707 extern int stmts_are_full_exprs_p (void);
4708 extern void init_cp_semantics (void);
4709 extern tree do_poplevel (tree);
4710 extern void add_decl_expr (tree);
4711 extern tree finish_expr_stmt (tree);
4712 extern tree begin_if_stmt (void);
4713 extern void finish_if_stmt_cond (tree, tree);
4714 extern tree finish_then_clause (tree);
4715 extern void begin_else_clause (tree);
4716 extern void finish_else_clause (tree);
4717 extern void finish_if_stmt (tree);
4718 extern tree begin_while_stmt (void);
4719 extern void finish_while_stmt_cond (tree, tree);
4720 extern void finish_while_stmt (tree);
4721 extern tree begin_do_stmt (void);
4722 extern void finish_do_body (tree);
4723 extern void finish_do_stmt (tree, tree);
4724 extern tree finish_return_stmt (tree);
4725 extern tree begin_for_stmt (void);
4726 extern void finish_for_init_stmt (tree);
4727 extern void finish_for_cond (tree, tree);
4728 extern void finish_for_expr (tree, tree);
4729 extern void finish_for_stmt (tree);
4730 extern tree finish_break_stmt (void);
4731 extern tree finish_continue_stmt (void);
4732 extern tree begin_switch_stmt (void);
4733 extern void finish_switch_cond (tree, tree);
4734 extern void finish_switch_stmt (tree);
4735 extern tree finish_case_label (tree, tree);
4736 extern tree finish_goto_stmt (tree);
4737 extern tree begin_try_block (void);
4738 extern void finish_try_block (tree);
4739 extern tree begin_eh_spec_block (void);
4740 extern void finish_eh_spec_block (tree, tree);
4741 extern void finish_handler_sequence (tree);
4742 extern tree begin_function_try_block (tree *);
4743 extern void finish_function_try_block (tree);
4744 extern void finish_function_handler_sequence (tree, tree);
4745 extern void finish_cleanup_try_block (tree);
4746 extern tree begin_handler (void);
4747 extern void finish_handler_parms (tree, tree);
4748 extern void finish_handler (tree);
4749 extern void finish_cleanup (tree, tree);
4756 extern tree begin_compound_stmt (unsigned int);
4758 extern void finish_compound_stmt (tree);
4759 extern tree finish_asm_stmt (int, tree, tree, tree, tree);
4760 extern tree finish_label_stmt (tree);
4761 extern void finish_label_decl (tree);
4762 extern tree finish_parenthesized_expr (tree);
4763 extern tree finish_non_static_data_member (tree, tree, tree);
4764 extern tree begin_stmt_expr (void);
4765 extern tree finish_stmt_expr_expr (tree, tree);
4766 extern tree finish_stmt_expr (tree, bool);
4767 extern tree stmt_expr_value_expr (tree);
4768 extern tree perform_koenig_lookup (tree, tree);
4769 extern tree finish_call_expr (tree, tree, bool, bool,
4771 extern tree finish_increment_expr (tree, enum tree_code);
4772 extern tree finish_this_expr (void);
4773 extern tree finish_pseudo_destructor_expr (tree, tree, tree);
4774 extern tree finish_unary_op_expr (enum tree_code, tree);
4775 extern tree finish_compound_literal (tree, tree);
4776 extern tree finish_fname (tree);
4777 extern void finish_translation_unit (void);
4778 extern tree finish_template_type_parm (tree, tree);
4779 extern tree finish_template_template_parm (tree, tree);
4780 extern tree begin_class_definition (tree, tree);
4781 extern void finish_template_decl (tree);
4782 extern tree finish_template_type (tree, tree, int);
4783 extern tree finish_base_specifier (tree, tree, bool);
4784 extern void finish_member_declaration (tree);
4785 extern void qualified_name_lookup_error (tree, tree, tree,
4787 extern void check_template_keyword (tree);
4788 extern tree finish_id_expression (tree, tree, tree,
4791 bool, bool, bool, bool,
4794 extern tree finish_typeof (tree);
4795 extern tree finish_offsetof (tree);
4796 extern void finish_decl_cleanup (tree, tree);
4797 extern void finish_eh_cleanup (tree);
4798 extern void emit_associated_thunks (tree);
4799 extern void finish_mem_initializers (tree);
4800 extern tree check_template_template_default_arg (tree);
4801 extern void expand_or_defer_fn (tree);
4802 extern void check_accessibility_of_qualified_id (tree, tree, tree);
4803 extern tree finish_qualified_id_expr (tree, tree, bool, bool,
4805 extern void simplify_aggr_init_expr (tree *);
4806 extern void finalize_nrv (tree *, tree, tree);
4807 extern void note_decl_for_pch (tree);
4808 extern tree finish_omp_clauses (tree);
4809 extern void finish_omp_threadprivate (tree);
4810 extern tree begin_omp_structured_block (void);
4811 extern tree finish_omp_structured_block (tree);
4812 extern tree begin_omp_parallel (void);
4813 extern tree finish_omp_parallel (tree, tree);
4814 extern tree begin_omp_task (void);
4815 extern tree finish_omp_task (tree, tree);
4816 extern tree finish_omp_for (location_t, tree, tree,
4817 tree, tree, tree, tree, tree);
4818 extern void finish_omp_atomic (enum tree_code, tree, tree);
4819 extern void finish_omp_barrier (void);
4820 extern void finish_omp_flush (void);
4821 extern void finish_omp_taskwait (void);
4822 extern enum omp_clause_default_kind cxx_omp_predetermined_sharing (tree);
4823 extern tree cxx_omp_clause_default_ctor (tree, tree, tree);
4824 extern tree cxx_omp_clause_copy_ctor (tree, tree, tree);
4825 extern tree cxx_omp_clause_assign_op (tree, tree, tree);
4826 extern tree cxx_omp_clause_dtor (tree, tree);
4827 extern void cxx_omp_finish_clause (tree);
4828 extern bool cxx_omp_privatize_by_reference (const_tree);
4829 extern bool cxx_omp_create_clause_info (tree, tree, bool, bool, bool);
4830 extern tree baselink_for_fns (tree);
4831 extern void finish_static_assert (tree, tree, location_t,
4833 extern tree describable_type (tree);
4834 extern tree finish_decltype_type (tree, bool);
4835 extern tree finish_trait_expr (enum cp_trait_kind, tree, tree);
4838 extern void lang_check_failed (const char *, int,
4839 const char *) ATTRIBUTE_NORETURN;
4840 extern tree stabilize_expr (tree, tree *);
4841 extern void stabilize_call (tree, tree *);
4842 extern void stabilize_aggr_init (tree, tree *);
4843 extern bool stabilize_init (tree, tree *);
4844 extern tree add_stmt_to_compound (tree, tree);
4845 extern tree cxx_maybe_build_cleanup (tree);
4846 extern void init_tree (void);
4847 extern int pod_type_p (const_tree);
4848 extern bool class_tmpl_impl_spec_p (const_tree);
4849 extern int zero_init_p (const_tree);
4850 extern tree canonical_type_variant (tree);
4851 extern tree copy_binfo (tree, tree, tree,
4853 extern int member_p (const_tree);
4854 extern cp_lvalue_kind real_lvalue_p (tree);
4855 extern bool lvalue_or_rvalue_with_address_p (tree);
4856 extern bool builtin_valid_in_constant_expr_p (const_tree);
4857 extern tree build_min (enum tree_code, tree, ...);
4858 extern tree build_min_nt (enum tree_code, ...);
4859 extern tree build_min_non_dep (enum tree_code, tree, ...);
4860 extern tree build_min_non_dep_call_list (tree, tree, tree);
4861 extern tree build_cplus_new (tree, tree);
4862 extern tree build_aggr_init_expr (tree, tree);
4863 extern tree get_target_expr (tree);
4864 extern tree build_cplus_array_type (tree, tree);
4865 extern tree build_array_of_n_type (tree, int);
4866 extern tree hash_tree_cons (tree, tree, tree);
4867 extern tree hash_tree_chain (tree, tree);
4868 extern tree build_qualified_name (tree, tree, tree, bool);
4869 extern int is_overloaded_fn (tree);
4870 extern tree get_first_fn (tree);
4871 extern tree ovl_cons (tree, tree);
4872 extern tree build_overload (tree, tree);
4873 extern const char *cxx_printable_name (tree, int);
4874 extern tree build_exception_variant (tree, tree);
4875 extern tree bind_template_template_parm (tree, tree);
4876 extern tree array_type_nelts_total (tree);
4877 extern tree array_type_nelts_top (tree);
4878 extern tree break_out_target_exprs (tree);
4879 extern tree get_type_decl (tree);
4880 extern tree decl_namespace_context (tree);
4881 extern bool decl_anon_ns_mem_p (const_tree);
4882 extern tree lvalue_type (tree);
4883 extern tree error_type (tree);
4884 extern int varargs_function_p (const_tree);
4885 extern bool really_overloaded_fn (tree);
4886 extern bool cp_tree_equal (tree, tree);
4887 extern tree no_linkage_check (tree, bool);
4888 extern void debug_binfo (tree);
4889 extern tree build_dummy_object (tree);
4890 extern tree maybe_dummy_object (tree, tree *);
4891 extern int is_dummy_object (const_tree);
4892 extern const struct attribute_spec cxx_attribute_table[];
4893 extern tree make_ptrmem_cst (tree, tree);
4894 extern tree cp_build_type_attribute_variant (tree, tree);
4895 extern tree cp_build_reference_type (tree, bool);
4896 extern tree cp_build_qualified_type_real (tree, int, tsubst_flags_t);
4897 #define cp_build_qualified_type(TYPE, QUALS) \
4898 cp_build_qualified_type_real ((TYPE), (QUALS), tf_warning_or_error)
4899 extern special_function_kind special_function_p (const_tree);
4900 extern int count_trees (tree);
4901 extern int char_type_p (tree);
4902 extern void verify_stmt_tree (tree);
4903 extern linkage_kind decl_linkage (tree);
4904 extern tree cp_walk_subtrees (tree*, int*, walk_tree_fn,
4905 void*, struct pointer_set_t*);
4906 #define cp_walk_tree(a,b,c,d) \
4907 walk_tree_1 (a, b, c, d, cp_walk_subtrees)
4908 #define cp_walk_tree_without_duplicates(a,b,c) \
4909 walk_tree_without_duplicates_1 (a, b, c, cp_walk_subtrees)
4910 extern tree fold_if_not_in_template (tree);
4911 extern tree rvalue (tree);
4912 extern tree convert_bitfield_to_declared_type (tree);
4913 extern tree cp_save_expr (tree);
4914 extern bool cast_valid_in_integral_constant_expression_p (tree);
4915 extern bool cxx_type_hash_eq (const_tree, const_tree);
4918 extern int string_conv_p (const_tree, const_tree, int);
4919 extern tree cp_truthvalue_conversion (tree);
4920 extern tree condition_conversion (tree);
4921 extern tree require_complete_type (tree);
4922 extern tree complete_type (tree);
4923 extern tree complete_type_or_else (tree, tree);
4924 extern int type_unknown_p (const_tree);
4925 extern bool comp_except_specs (const_tree, const_tree, bool);
4926 extern bool comptypes (tree, tree, int);
4927 extern bool compparms (const_tree, const_tree);
4928 extern int comp_cv_qualification (const_tree, const_tree);
4929 extern int comp_cv_qual_signature (tree, tree);
4930 extern tree cxx_sizeof_or_alignof_expr (tree, enum tree_code, bool);
4931 extern tree cxx_sizeof_or_alignof_type (tree, enum tree_code, bool);
4932 extern tree cxx_sizeof_nowarn (tree);
4933 extern tree is_bitfield_expr_with_lowered_type (const_tree);
4934 extern tree unlowered_expr_type (const_tree);
4935 extern tree decay_conversion (tree);
4936 extern tree build_class_member_access_expr (tree, tree, tree, bool,
4938 extern tree finish_class_member_access_expr (tree, tree, bool,
4940 extern tree build_x_indirect_ref (tree, const char *,
4942 extern tree cp_build_indirect_ref (tree, const char *,
4944 extern tree build_array_ref (tree, tree, location_t);
4945 extern tree get_member_function_from_ptrfunc (tree *, tree);
4946 extern tree cp_build_function_call (tree, tree, tsubst_flags_t);
4947 extern tree build_x_binary_op (enum tree_code, tree,
4948 enum tree_code, tree,
4949 enum tree_code, bool *,
4951 extern tree build_x_array_ref (tree, tree, tsubst_flags_t);
4952 extern tree build_x_unary_op (enum tree_code, tree,
4954 extern tree cp_build_unary_op (enum tree_code, tree, int,
4956 extern tree unary_complex_lvalue (enum tree_code, tree);
4957 extern tree build_x_conditional_expr (tree, tree, tree,
4959 extern tree build_x_compound_expr_from_list (tree, const char *);
4960 extern tree build_x_compound_expr (tree, tree, tsubst_flags_t);
4961 extern tree build_compound_expr (tree, tree);
4962 extern tree cp_build_compound_expr (tree, tree, tsubst_flags_t);
4963 extern tree build_static_cast (tree, tree, tsubst_flags_t);
4964 extern tree build_reinterpret_cast (tree, tree, tsubst_flags_t);
4965 extern tree build_const_cast (tree, tree, tsubst_flags_t);
4966 extern tree build_c_cast (tree, tree);
4967 extern tree cp_build_c_cast (tree, tree, tsubst_flags_t);
4968 extern tree build_x_modify_expr (tree, enum tree_code, tree,
4970 extern tree cp_build_modify_expr (tree, enum tree_code, tree,
4972 extern tree convert_for_initialization (tree, tree, tree, int,
4973 const char *, tree, int,
4975 extern int comp_ptr_ttypes (tree, tree);
4976 extern bool comp_ptr_ttypes_const (tree, tree);
4977 extern int ptr_reasonably_similar (const_tree, const_tree);
4978 extern tree build_ptrmemfunc (tree, tree, int, bool);
4979 extern int cp_type_quals (const_tree);
4980 extern bool cp_type_readonly (const_tree);
4981 extern bool cp_has_mutable_p (const_tree);
4982 extern bool at_least_as_qualified_p (const_tree, const_tree);
4983 extern void cp_apply_type_quals_to_decl (int, tree);
4984 extern tree build_ptrmemfunc1 (tree, tree, tree);
4985 extern void expand_ptrmemfunc_cst (tree, tree *, tree *);
4986 extern tree type_after_usual_arithmetic_conversions (tree, tree);
4987 extern tree common_pointer_type (tree, tree);
4988 extern tree composite_pointer_type (tree, tree, tree, tree,
4989 const char*, tsubst_flags_t);
4990 extern tree merge_types (tree, tree);
4991 extern tree check_return_expr (tree, bool *);
4992 extern tree cp_build_binary_op (location_t,
4993 enum tree_code, tree, tree,
4995 #define cxx_sizeof(T) cxx_sizeof_or_alignof_type (T, SIZEOF_EXPR, true)
4996 extern tree build_ptrmemfunc_access_expr (tree, tree);
4997 extern tree build_address (tree);
4998 extern tree build_nop (tree, tree);
4999 extern tree non_reference (tree);
5000 extern tree lookup_anon_field (tree, tree);
5001 extern bool invalid_nonstatic_memfn_p (const_tree, tsubst_flags_t);
5002 extern tree convert_member_func_to_ptr (tree, tree);
5003 extern tree convert_ptrmem (tree, tree, bool, bool);
5004 extern int lvalue_or_else (tree, enum lvalue_use,
5006 extern int lvalue_p (tree);
5009 extern void require_complete_eh_spec_types (tree, tree);
5010 extern void cxx_incomplete_type_diagnostic (const_tree, const_tree, diagnostic_t);
5011 #undef cxx_incomplete_type_error
5012 extern void cxx_incomplete_type_error (const_tree, const_tree);
5013 #define cxx_incomplete_type_error(V,T) \
5014 (cxx_incomplete_type_diagnostic ((V), (T), DK_ERROR))
5015 extern tree error_not_base_type (tree, tree);
5016 extern tree binfo_or_else (tree, tree);
5017 extern void readonly_error (tree, const char *);
5018 extern void complete_type_check_abstract (tree);
5019 extern int abstract_virtuals_error (tree, tree);
5021 extern tree store_init_value (tree, tree);
5022 extern void check_narrowing (tree, tree);
5023 extern tree digest_init (tree, tree);
5024 extern tree build_scoped_ref (tree, tree, tree *);
5025 extern tree build_x_arrow (tree);
5026 extern tree build_m_component_ref (tree, tree);
5027 extern tree build_functional_cast (tree, tree, tsubst_flags_t);
5028 extern tree add_exception_specifier (tree, tree, int);
5029 extern tree merge_exception_specifiers (tree, tree);
5032 extern void init_mangle (void);
5033 extern void mangle_decl (tree);
5034 extern const char *mangle_type_string (tree);
5035 extern tree mangle_typeinfo_for_type (tree);
5036 extern tree mangle_typeinfo_string_for_type (tree);
5037 extern tree mangle_vtbl_for_type (tree);
5038 extern tree mangle_vtt_for_type (tree);
5039 extern tree mangle_ctor_vtbl_for_type (tree, tree);
5040 extern tree mangle_thunk (tree, int, tree, tree);
5041 extern tree mangle_conv_op_name_for_type (tree);
5042 extern tree mangle_guard_variable (tree);
5043 extern tree mangle_ref_init_variable (tree);
5044 extern tree mangle_compound_literal (void);
5047 extern bool cp_dump_tree (void *, tree);
5049 /* In cp/cp-objcp-common.c. */
5051 extern alias_set_type cxx_get_alias_set (tree);
5052 extern bool cxx_warn_unused_global_decl (const_tree);
5053 extern tree cp_expr_size (const_tree);
5054 extern size_t cp_tree_size (enum tree_code);
5055 extern bool cp_var_mod_type_p (tree, tree);
5056 extern void cxx_initialize_diagnostics (struct diagnostic_context *);
5057 extern int cxx_types_compatible_p (tree, tree);
5058 extern void init_shadowed_var_for_decl (void);
5059 extern tree cxx_staticp (tree);
5061 /* in cp-gimplify.c */
5062 extern int cp_gimplify_expr (tree *, gimple_seq *,
5064 extern void cp_genericize (tree);
5068 #endif /* ! GCC_CP_TREE_H */