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)
48 In order for the format checking to accept the C++ front end diagnostic \
49 framework extensions, you must include this file before toplev.h, not after.
52 #include "diagnostic.h"
54 /* Usage of TREE_LANG_FLAG_?:
55 0: IDENTIFIER_MARKED (IDENTIFIER_NODEs)
56 NEW_EXPR_USE_GLOBAL (in NEW_EXPR).
57 DELETE_EXPR_USE_GLOBAL (in DELETE_EXPR).
58 COMPOUND_EXPR_OVERLOADED (in COMPOUND_EXPR).
59 TREE_INDIRECT_USING (in NAMESPACE_DECL).
60 CLEANUP_P (in TRY_BLOCK)
61 AGGR_INIT_VIA_CTOR_P (in AGGR_INIT_EXPR)
62 PTRMEM_OK_P (in ADDR_EXPR, OFFSET_REF)
63 PAREN_STRING_LITERAL (in STRING_CST)
64 DECL_PRETTY_FUNCTION_P (in VAR_DECL)
65 KOENIG_LOOKUP_P (in CALL_EXPR)
66 STATEMENT_LIST_NO_SCOPE (in STATEMENT_LIST).
67 EXPR_STMT_STMT_EXPR_RESULT (in EXPR_STMT)
68 STMT_EXPR_NO_SCOPE (in STMT_EXPR)
69 BIND_EXPR_TRY_BLOCK (in BIND_EXPR)
70 TYPENAME_IS_ENUM_P (in TYPENAME_TYPE)
71 REFERENCE_REF_P (in INDIRECT_EXPR)
72 QUALIFIED_NAME_IS_TEMPLATE (in SCOPE_REF)
73 OMP_FOR_GIMPLIFYING_P (in OMP_FOR)
74 BASELINK_QUALIFIED_P (in BASELINK)
75 TARGET_EXPR_IMPLICIT_P (in TARGET_EXPR)
76 TEMPLATE_PARM_PARAMETER_PACK (in TEMPLATE_PARM_INDEX)
77 TYPE_REF_IS_RVALUE (in REFERENCE_TYPE)
78 ATTR_IS_DEPENDENT (in the TREE_LIST for an attribute)
79 CONSTRUCTOR_IS_DIRECT_INIT (in CONSTRUCTOR)
80 LAMBDA_EXPR_CAPTURES_THIS_P (in LAMBDA_EXPR)
81 DECLTYPE_FOR_LAMBDA_CAPTURE (in DECLTYPE_TYPE)
82 1: IDENTIFIER_VIRTUAL_P (in IDENTIFIER_NODE)
83 TI_PENDING_TEMPLATE_FLAG.
84 TEMPLATE_PARMS_FOR_INLINE.
85 DELETE_EXPR_USE_VEC (in DELETE_EXPR).
86 (TREE_CALLS_NEW) (in _EXPR or _REF) (commented-out).
87 ICS_ELLIPSIS_FLAG (in _CONV)
88 DECL_INITIALIZED_P (in VAR_DECL)
89 TYPENAME_IS_CLASS_P (in TYPENAME_TYPE)
90 STMT_IS_FULL_EXPR_P (in _STMT)
91 TARGET_EXPR_LIST_INIT_P (in TARGET_EXPR)
92 LAMBDA_EXPR_MUTABLE_P (in LAMBDA_EXPR)
93 DECLTYPE_FOR_LAMBDA_RETURN (in DECLTYPE_TYPE)
94 2: IDENTIFIER_OPNAME_P (in IDENTIFIER_NODE)
95 ICS_THIS_FLAG (in _CONV)
96 DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (in VAR_DECL)
97 STATEMENT_LIST_TRY_BLOCK (in STATEMENT_LIST)
98 TYPENAME_IS_RESOLVING_P (in TYPE_NAME_TYPE)
99 LAMBDA_EXPR_DEDUCE_RETURN_TYPE_P (in LAMBDA_EXPR)
100 3: (TREE_REFERENCE_EXPR) (in NON_LVALUE_EXPR) (commented-out).
101 ICS_BAD_FLAG (in _CONV)
102 FN_TRY_BLOCK_P (in TRY_BLOCK)
103 IDENTIFIER_CTOR_OR_DTOR_P (in IDENTIFIER_NODE)
104 BIND_EXPR_BODY_BLOCK (in BIND_EXPR)
105 DECL_NON_TRIVIALLY_INITIALIZED_P (in VAR_DECL)
106 4: TREE_HAS_CONSTRUCTOR (in INDIRECT_REF, SAVE_EXPR, CONSTRUCTOR,
108 IDENTIFIER_TYPENAME_P (in IDENTIFIER_NODE)
109 DECL_TINFO_P (in VAR_DECL)
110 5: C_IS_RESERVED_WORD (in IDENTIFIER_NODE)
111 DECL_VTABLE_OR_VTT_P (in VAR_DECL)
112 6: IDENTIFIER_REPO_CHOSEN (in IDENTIFIER_NODE)
113 DECL_CONSTRUCTION_VTABLE_P (in VAR_DECL)
114 TYPE_MARKED_P (in _TYPE)
115 7: DECL_DEAD_FOR_LOCAL (in VAR_DECL)
116 8: DECL_DECLARED_CONSTEXPR_P (in VAR_DECL, FUNCTION_DECL)
118 Usage of TYPE_LANG_FLAG_?:
120 1: TYPE_HAS_USER_CONSTRUCTOR.
123 4: TYPE_HAS_NONTRIVIAL_DESTRUCTOR
124 5: CLASS_TYPE_P (in RECORD_TYPE and UNION_TYPE)
125 SCOPED_ENUM_P (in ENUMERAL_TYPE)
126 6: TYPE_DEPENDENT_P_VALID
128 Usage of DECL_LANG_FLAG_?:
129 0: DECL_ERROR_REPORTED (in VAR_DECL).
130 DECL_TEMPLATE_PARM_P (in PARM_DECL, CONST_DECL, TYPE_DECL, or TEMPLATE_DECL)
131 DECL_LOCAL_FUNCTION_P (in FUNCTION_DECL)
132 DECL_MUTABLE_P (in FIELD_DECL)
133 DECL_DEPENDENT_P (in USING_DECL)
134 1: C_TYPEDEF_EXPLICITLY_SIGNED (in TYPE_DECL).
135 DECL_TEMPLATE_INSTANTIATED (in a VAR_DECL or a FUNCTION_DECL)
136 DECL_MEMBER_TEMPLATE_P (in TEMPLATE_DECL)
137 FUNCTION_PARAMETER_PACK_P (in PARM_DECL)
138 2: DECL_THIS_EXTERN (in VAR_DECL or FUNCTION_DECL).
139 DECL_IMPLICIT_TYPEDEF_P (in a TYPE_DECL)
141 4: DECL_C_BIT_FIELD (in a FIELD_DECL)
142 DECL_ANON_UNION_VAR_P (in a VAR_DECL)
143 DECL_SELF_REFERENCE_P (in a TYPE_DECL)
144 DECL_INVALID_OVERRIDER_P (in a FUNCTION_DECL)
145 5: DECL_INTERFACE_KNOWN.
146 6: DECL_THIS_STATIC (in VAR_DECL or FUNCTION_DECL).
147 DECL_FIELD_IS_BASE (in FIELD_DECL)
148 7: DECL_DEAD_FOR_LOCAL (in VAR_DECL).
149 DECL_THUNK_P (in a member FUNCTION_DECL)
151 Usage of language-independent fields in a language-dependent manner:
154 This field is used by TYPENAME_TYPEs, TEMPLATE_TYPE_PARMs, and so
155 forth as a substitute for the mark bits provided in `lang_type'.
156 At present, only the six low-order bits are used.
159 For an ENUMERAL_TYPE, this is ENUM_TEMPLATE_INFO.
160 For a FUNCTION_TYPE or METHOD_TYPE, this is TYPE_RAISES_EXCEPTIONS
163 For a binfo, this is a TREE_LIST. There is an entry for each
164 virtual function declared either in BINFO or its direct and
165 indirect primary bases.
167 The BV_DELTA of each node gives the amount by which to adjust the
168 `this' pointer when calling the function. If the method is an
169 overridden version of a base class method, then it is assumed
170 that, prior to adjustment, the this pointer points to an object
173 The BV_VCALL_INDEX of each node, if non-NULL, gives the vtable
174 index of the vcall offset for this entry.
176 The BV_FN is the declaration for the virtual function itself.
179 This is an expression with POINTER_TYPE that gives the value
180 to which the vptr should be initialized. Use get_vtbl_decl_for_binfo
181 to extract the VAR_DECL for the complete vtable.
184 This field is NULL for a non-virtual function. For a virtual
185 function, it is eventually set to an INTEGER_CST indicating the
186 index in the vtable at which this function can be found. When
187 a virtual function is declared, but before it is known what
188 function is overridden, this field is the error_mark_node.
190 Temporarily, it may be set to a TREE_LIST whose TREE_VALUE is
191 the virtual function this one overrides, and whose TREE_CHAIN is
192 the old DECL_VINDEX. */
194 /* Language-specific tree checkers. */
196 #define VAR_OR_FUNCTION_DECL_CHECK(NODE) \
197 TREE_CHECK2(NODE,VAR_DECL,FUNCTION_DECL)
199 #define VAR_FUNCTION_OR_PARM_DECL_CHECK(NODE) \
200 TREE_CHECK3(NODE,VAR_DECL,FUNCTION_DECL,PARM_DECL)
202 #define VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK(NODE) \
203 TREE_CHECK4(NODE,VAR_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL)
205 #define BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK(NODE) \
206 TREE_CHECK(NODE,BOUND_TEMPLATE_TEMPLATE_PARM)
208 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
209 #define THUNK_FUNCTION_CHECK(NODE) __extension__ \
210 ({ __typeof (NODE) const __t = (NODE); \
211 if (TREE_CODE (__t) != FUNCTION_DECL || !__t->decl_common.lang_specific \
212 || !__t->decl_common.lang_specific->u.fn.thunk_p) \
213 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, 0); \
216 #define THUNK_FUNCTION_CHECK(NODE) (NODE)
219 /* Language-dependent contents of an identifier. */
221 struct GTY(()) lang_identifier {
222 struct c_common_identifier c_common;
223 cxx_binding *namespace_bindings;
224 cxx_binding *bindings;
225 tree class_template_info;
229 /* In an IDENTIFIER_NODE, nonzero if this identifier is actually a
230 keyword. C_RID_CODE (node) is then the RID_* value of the keyword,
231 and C_RID_YYCODE is the token number wanted by Yacc. */
233 #define C_IS_RESERVED_WORD(ID) TREE_LANG_FLAG_5 (ID)
235 #define LANG_IDENTIFIER_CAST(NODE) \
236 ((struct lang_identifier*)IDENTIFIER_NODE_CHECK (NODE))
238 struct GTY(()) template_parm_index_s {
239 struct tree_common common;
245 typedef struct template_parm_index_s template_parm_index;
247 struct GTY(()) ptrmem_cst {
248 struct tree_common common;
249 /* This isn't used, but the middle-end expects all constants to have
254 typedef struct ptrmem_cst * ptrmem_cst_t;
256 #define IDENTIFIER_GLOBAL_VALUE(NODE) \
257 namespace_binding ((NODE), global_namespace)
258 #define SET_IDENTIFIER_GLOBAL_VALUE(NODE, VAL) \
259 set_namespace_binding ((NODE), global_namespace, (VAL))
260 #define IDENTIFIER_NAMESPACE_VALUE(NODE) \
261 namespace_binding ((NODE), current_namespace)
262 #define SET_IDENTIFIER_NAMESPACE_VALUE(NODE, VAL) \
263 set_namespace_binding ((NODE), current_namespace, (VAL))
265 #define CLEANUP_P(NODE) TREE_LANG_FLAG_0 (TRY_BLOCK_CHECK (NODE))
267 #define BIND_EXPR_TRY_BLOCK(NODE) \
268 TREE_LANG_FLAG_0 (BIND_EXPR_CHECK (NODE))
270 /* Used to mark the block around the member initializers and cleanups. */
271 #define BIND_EXPR_BODY_BLOCK(NODE) \
272 TREE_LANG_FLAG_3 (BIND_EXPR_CHECK (NODE))
273 #define FUNCTION_NEEDS_BODY_BLOCK(NODE) \
274 (DECL_CONSTRUCTOR_P (NODE) || DECL_DESTRUCTOR_P (NODE))
276 #define STATEMENT_LIST_NO_SCOPE(NODE) \
277 TREE_LANG_FLAG_0 (STATEMENT_LIST_CHECK (NODE))
278 #define STATEMENT_LIST_TRY_BLOCK(NODE) \
279 TREE_LANG_FLAG_2 (STATEMENT_LIST_CHECK (NODE))
281 /* Nonzero if this statement should be considered a full-expression,
282 i.e., if temporaries created during this statement should have
283 their destructors run at the end of this statement. */
284 #define STMT_IS_FULL_EXPR_P(NODE) TREE_LANG_FLAG_1 ((NODE))
286 /* Marks the result of a statement expression. */
287 #define EXPR_STMT_STMT_EXPR_RESULT(NODE) \
288 TREE_LANG_FLAG_0 (EXPR_STMT_CHECK (NODE))
290 /* Nonzero if this statement-expression does not have an associated scope. */
291 #define STMT_EXPR_NO_SCOPE(NODE) \
292 TREE_LANG_FLAG_0 (STMT_EXPR_CHECK (NODE))
294 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, in the usual
296 #define same_type_p(TYPE1, TYPE2) \
297 comptypes ((TYPE1), (TYPE2), COMPARE_STRICT)
299 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, ignoring
300 top-level qualifiers. */
301 #define same_type_ignoring_top_level_qualifiers_p(TYPE1, TYPE2) \
302 same_type_p (TYPE_MAIN_VARIANT (TYPE1), TYPE_MAIN_VARIANT (TYPE2))
304 /* Nonzero if we are presently building a statement tree, rather
305 than expanding each statement as we encounter it. */
306 #define building_stmt_tree() (cur_stmt_list != NULL_TREE)
308 /* Returns nonzero iff NODE is a declaration for the global function
310 #define DECL_MAIN_P(NODE) \
311 (DECL_EXTERN_C_FUNCTION_P (NODE) \
312 && DECL_NAME (NODE) != NULL_TREE \
313 && MAIN_NAME_P (DECL_NAME (NODE)) \
316 /* The overloaded FUNCTION_DECL. */
317 #define OVL_FUNCTION(NODE) \
318 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->function)
319 #define OVL_CHAIN(NODE) TREE_CHAIN (NODE)
320 /* Polymorphic access to FUNCTION and CHAIN. */
321 #define OVL_CURRENT(NODE) \
322 ((TREE_CODE (NODE) == OVERLOAD) ? OVL_FUNCTION (NODE) : (NODE))
323 #define OVL_NEXT(NODE) \
324 ((TREE_CODE (NODE) == OVERLOAD) ? TREE_CHAIN (NODE) : NULL_TREE)
325 /* If set, this was imported in a using declaration.
326 This is not to confuse with being used somewhere, which
327 is not important for this node. */
328 #define OVL_USED(NODE) TREE_USED (NODE)
330 struct GTY(()) tree_overload {
331 struct tree_common common;
335 /* Returns true iff NODE is a BASELINK. */
336 #define BASELINK_P(NODE) \
337 (TREE_CODE (NODE) == BASELINK)
338 /* The BINFO indicating the base from which the BASELINK_FUNCTIONS came. */
339 #define BASELINK_BINFO(NODE) \
340 (((struct tree_baselink*) BASELINK_CHECK (NODE))->binfo)
341 /* The functions referred to by the BASELINK; either a FUNCTION_DECL,
342 a TEMPLATE_DECL, an OVERLOAD, or a TEMPLATE_ID_EXPR. */
343 #define BASELINK_FUNCTIONS(NODE) \
344 (((struct tree_baselink*) BASELINK_CHECK (NODE))->functions)
345 /* The BINFO in which the search for the functions indicated by this baselink
346 began. This base is used to determine the accessibility of functions
347 selected by overload resolution. */
348 #define BASELINK_ACCESS_BINFO(NODE) \
349 (((struct tree_baselink*) BASELINK_CHECK (NODE))->access_binfo)
350 /* For a type-conversion operator, the BASELINK_OPTYPE indicates the type
351 to which the conversion should occur. This value is important if
352 the BASELINK_FUNCTIONS include a template conversion operator --
353 the BASELINK_OPTYPE can be used to determine what type the user
355 #define BASELINK_OPTYPE(NODE) \
356 (TREE_CHAIN (BASELINK_CHECK (NODE)))
357 /* Nonzero if this baselink was from a qualified lookup. */
358 #define BASELINK_QUALIFIED_P(NODE) \
359 TREE_LANG_FLAG_0 (BASELINK_CHECK (NODE))
361 struct GTY(()) tree_baselink {
362 struct tree_common common;
368 /* The different kinds of ids that we encounter. */
370 typedef enum cp_id_kind
372 /* Not an id at all. */
374 /* An unqualified-id that is not a template-id. */
375 CP_ID_KIND_UNQUALIFIED,
376 /* An unqualified-id that is a dependent name. */
377 CP_ID_KIND_UNQUALIFIED_DEPENDENT,
378 /* An unqualified template-id. */
379 CP_ID_KIND_TEMPLATE_ID,
380 /* A qualified-id. */
384 /* Macros for access to language-specific slots in an identifier. */
386 #define IDENTIFIER_NAMESPACE_BINDINGS(NODE) \
387 (LANG_IDENTIFIER_CAST (NODE)->namespace_bindings)
388 #define IDENTIFIER_TEMPLATE(NODE) \
389 (LANG_IDENTIFIER_CAST (NODE)->class_template_info)
391 /* The IDENTIFIER_BINDING is the innermost cxx_binding for the
392 identifier. It's PREVIOUS is the next outermost binding. Each
393 VALUE field is a DECL for the associated declaration. Thus,
394 name lookup consists simply of pulling off the node at the front
395 of the list (modulo oddities for looking up the names of types,
396 and such.) You can use SCOPE field to determine the scope
397 that bound the name. */
398 #define IDENTIFIER_BINDING(NODE) \
399 (LANG_IDENTIFIER_CAST (NODE)->bindings)
401 /* TREE_TYPE only indicates on local and class scope the current
402 type. For namespace scope, the presence of a type in any namespace
403 is indicated with global_type_node, and the real type behind must
404 be found through lookup. */
405 #define IDENTIFIER_TYPE_VALUE(NODE) identifier_type_value (NODE)
406 #define REAL_IDENTIFIER_TYPE_VALUE(NODE) TREE_TYPE (NODE)
407 #define SET_IDENTIFIER_TYPE_VALUE(NODE,TYPE) (TREE_TYPE (NODE) = (TYPE))
408 #define IDENTIFIER_HAS_TYPE_VALUE(NODE) (IDENTIFIER_TYPE_VALUE (NODE) ? 1 : 0)
410 #define IDENTIFIER_LABEL_VALUE(NODE) \
411 (LANG_IDENTIFIER_CAST (NODE)->label_value)
412 #define SET_IDENTIFIER_LABEL_VALUE(NODE, VALUE) \
413 IDENTIFIER_LABEL_VALUE (NODE) = (VALUE)
415 /* Nonzero if this identifier is used as a virtual function name somewhere
416 (optimizes searches). */
417 #define IDENTIFIER_VIRTUAL_P(NODE) TREE_LANG_FLAG_1 (NODE)
419 /* Nonzero if this identifier is the prefix for a mangled C++ operator
421 #define IDENTIFIER_OPNAME_P(NODE) TREE_LANG_FLAG_2 (NODE)
423 /* Nonzero if this identifier is the name of a type-conversion
425 #define IDENTIFIER_TYPENAME_P(NODE) \
426 TREE_LANG_FLAG_4 (NODE)
428 /* Nonzero if this identifier is the name of a constructor or
430 #define IDENTIFIER_CTOR_OR_DTOR_P(NODE) \
431 TREE_LANG_FLAG_3 (NODE)
433 /* True iff NAME is the DECL_ASSEMBLER_NAME for an entity with vague
434 linkage which the prelinker has assigned to this translation
436 #define IDENTIFIER_REPO_CHOSEN(NAME) \
437 (TREE_LANG_FLAG_6 (NAME))
439 /* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */
440 #define C_TYPE_FIELDS_READONLY(TYPE) \
441 (LANG_TYPE_CLASS_CHECK (TYPE)->fields_readonly)
443 /* The tokens stored in the default argument. */
445 #define DEFARG_TOKENS(NODE) \
446 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->tokens)
447 #define DEFARG_INSTANTIATIONS(NODE) \
448 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->instantiations)
450 struct GTY (()) tree_default_arg {
451 struct tree_common common;
452 struct cp_token_cache *tokens;
453 VEC(tree,gc) *instantiations;
456 /* The condition associated with the static assertion. This must be
457 an integral constant expression. */
458 #define STATIC_ASSERT_CONDITION(NODE) \
459 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->condition)
461 /* The message associated with the static assertion. This must be a
462 string constant, which will be emitted as an error message when the
463 static assert condition is false. */
464 #define STATIC_ASSERT_MESSAGE(NODE) \
465 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->message)
467 /* Source location information for a static assertion. */
468 #define STATIC_ASSERT_SOURCE_LOCATION(NODE) \
469 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->location)
471 struct GTY (()) tree_static_assert {
472 struct tree_common common;
478 struct GTY (()) tree_argument_pack_select {
479 struct tree_common common;
484 /* The different kinds of traits that we encounter. */
486 typedef enum cp_trait_kind
488 CPTK_HAS_NOTHROW_ASSIGN,
489 CPTK_HAS_NOTHROW_CONSTRUCTOR,
490 CPTK_HAS_NOTHROW_COPY,
491 CPTK_HAS_TRIVIAL_ASSIGN,
492 CPTK_HAS_TRIVIAL_CONSTRUCTOR,
493 CPTK_HAS_TRIVIAL_COPY,
494 CPTK_HAS_TRIVIAL_DESTRUCTOR,
495 CPTK_HAS_VIRTUAL_DESTRUCTOR,
499 CPTK_IS_CONVERTIBLE_TO,
509 /* The types that we are processing. */
510 #define TRAIT_EXPR_TYPE1(NODE) \
511 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type1)
513 #define TRAIT_EXPR_TYPE2(NODE) \
514 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type2)
516 /* The specific trait that we are processing. */
517 #define TRAIT_EXPR_KIND(NODE) \
518 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->kind)
520 struct GTY (()) tree_trait_expr {
521 struct tree_common common;
524 enum cp_trait_kind kind;
527 /* Based off of TYPE_ANONYMOUS_P. */
528 #define LAMBDA_TYPE_P(NODE) \
529 (CLASS_TYPE_P (NODE) && LAMBDANAME_P (TYPE_LINKAGE_IDENTIFIER (NODE)))
531 /* Test if FUNCTION_DECL is a lambda function. */
532 #define LAMBDA_FUNCTION_P(FNDECL) \
533 (DECL_OVERLOADED_OPERATOR_P (FNDECL) == CALL_EXPR \
534 && LAMBDA_TYPE_P (CP_DECL_CONTEXT (FNDECL)))
536 enum cp_lambda_default_capture_mode_type {
542 /* The method of default capture, if any. */
543 #define LAMBDA_EXPR_DEFAULT_CAPTURE_MODE(NODE) \
544 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->default_capture_mode)
546 /* The capture-list, including `this'. Each capture is stored as a FIELD_DECL
547 * so that the name, type, and field are all together, whether or not it has
548 * been added to the lambda's class type.
550 TREE_PURPOSE: The FIELD_DECL for this capture.
551 TREE_VALUE: The initializer. This is part of a GNU extension. */
552 #define LAMBDA_EXPR_CAPTURE_LIST(NODE) \
553 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->capture_list)
555 /* The node in the capture-list that holds the 'this' capture. */
556 #define LAMBDA_EXPR_THIS_CAPTURE(NODE) \
557 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->this_capture)
559 /* Predicate tracking whether `this' is in the effective capture set. */
560 #define LAMBDA_EXPR_CAPTURES_THIS_P(NODE) \
561 LAMBDA_EXPR_THIS_CAPTURE(NODE)
563 /* Predicate tracking whether the lambda was declared 'mutable'. */
564 #define LAMBDA_EXPR_MUTABLE_P(NODE) \
565 TREE_LANG_FLAG_1 (LAMBDA_EXPR_CHECK (NODE))
567 /* True iff we should try to deduce the lambda return type from any return
569 #define LAMBDA_EXPR_DEDUCE_RETURN_TYPE_P(NODE) \
570 TREE_LANG_FLAG_2 (LAMBDA_EXPR_CHECK (NODE))
572 /* The return type in the expression.
573 * NULL_TREE indicates that none was specified. */
574 #define LAMBDA_EXPR_RETURN_TYPE(NODE) \
575 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->return_type)
577 /* The source location of the lambda. */
578 #define LAMBDA_EXPR_LOCATION(NODE) \
579 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->locus)
581 /* The mangling scope for the lambda: FUNCTION_DECL, PARM_DECL, VAR_DECL,
582 FIELD_DECL or NULL_TREE. If this is NULL_TREE, we have no linkage. */
583 #define LAMBDA_EXPR_EXTRA_SCOPE(NODE) \
584 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->extra_scope)
586 /* If EXTRA_SCOPE, this is the number of the lambda within that scope. */
587 #define LAMBDA_EXPR_DISCRIMINATOR(NODE) \
588 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->discriminator)
590 struct GTY (()) tree_lambda_expr
592 struct tree_common common;
594 enum cp_lambda_default_capture_mode_type default_capture_mode;
602 enum cp_tree_node_structure_enum {
613 TS_CP_ARGUMENT_PACK_SELECT,
619 /* The resulting tree type. */
620 union GTY((desc ("cp_tree_node_structure (&%h)"),
621 chain_next ("(union lang_tree_node *)TREE_CHAIN (&%h.generic)"))) lang_tree_node {
622 union tree_node GTY ((tag ("TS_CP_GENERIC"),
623 desc ("tree_node_structure (&%h)"))) generic;
624 struct template_parm_index_s GTY ((tag ("TS_CP_TPI"))) tpi;
625 struct ptrmem_cst GTY ((tag ("TS_CP_PTRMEM"))) ptrmem;
626 struct tree_overload GTY ((tag ("TS_CP_OVERLOAD"))) overload;
627 struct tree_baselink GTY ((tag ("TS_CP_BASELINK"))) baselink;
628 struct tree_default_arg GTY ((tag ("TS_CP_DEFAULT_ARG"))) default_arg;
629 struct lang_identifier GTY ((tag ("TS_CP_IDENTIFIER"))) identifier;
630 struct tree_static_assert GTY ((tag ("TS_CP_STATIC_ASSERT")))
632 struct tree_argument_pack_select GTY ((tag ("TS_CP_ARGUMENT_PACK_SELECT")))
633 argument_pack_select;
634 struct tree_trait_expr GTY ((tag ("TS_CP_TRAIT_EXPR")))
636 struct tree_lambda_expr GTY ((tag ("TS_CP_LAMBDA_EXPR")))
644 CPTI_JAVA_SHORT_TYPE,
647 CPTI_JAVA_FLOAT_TYPE,
648 CPTI_JAVA_DOUBLE_TYPE,
650 CPTI_JAVA_BOOLEAN_TYPE,
653 CPTI_VTABLE_ENTRY_TYPE,
655 CPTI_VTABLE_INDEX_TYPE,
666 CPTI_CONST_TYPE_INFO_TYPE,
667 CPTI_TYPE_INFO_PTR_TYPE,
669 CPTI_GLOBAL_DELETE_FNDECL,
672 CPTI_CTOR_IDENTIFIER,
673 CPTI_COMPLETE_CTOR_IDENTIFIER,
674 CPTI_BASE_CTOR_IDENTIFIER,
675 CPTI_DTOR_IDENTIFIER,
676 CPTI_COMPLETE_DTOR_IDENTIFIER,
677 CPTI_BASE_DTOR_IDENTIFIER,
678 CPTI_DELETING_DTOR_IDENTIFIER,
679 CPTI_DELTA_IDENTIFIER,
680 CPTI_IN_CHARGE_IDENTIFIER,
681 CPTI_VTT_PARM_IDENTIFIER,
682 CPTI_NELTS_IDENTIFIER,
683 CPTI_THIS_IDENTIFIER,
685 CPTI_VPTR_IDENTIFIER,
689 CPTI_LANG_NAME_CPLUSPLUS,
692 CPTI_EMPTY_EXCEPT_SPEC,
695 CPTI_CALL_UNEXPECTED,
696 CPTI_ATEXIT_FN_PTR_TYPE,
706 extern GTY(()) tree cp_global_trees[CPTI_MAX];
708 #define java_byte_type_node cp_global_trees[CPTI_JAVA_BYTE_TYPE]
709 #define java_short_type_node cp_global_trees[CPTI_JAVA_SHORT_TYPE]
710 #define java_int_type_node cp_global_trees[CPTI_JAVA_INT_TYPE]
711 #define java_long_type_node cp_global_trees[CPTI_JAVA_LONG_TYPE]
712 #define java_float_type_node cp_global_trees[CPTI_JAVA_FLOAT_TYPE]
713 #define java_double_type_node cp_global_trees[CPTI_JAVA_DOUBLE_TYPE]
714 #define java_char_type_node cp_global_trees[CPTI_JAVA_CHAR_TYPE]
715 #define java_boolean_type_node cp_global_trees[CPTI_JAVA_BOOLEAN_TYPE]
717 #define wchar_decl_node cp_global_trees[CPTI_WCHAR_DECL]
718 #define vtable_entry_type cp_global_trees[CPTI_VTABLE_ENTRY_TYPE]
719 /* The type used to represent an offset by which to adjust the `this'
720 pointer in pointer-to-member types. */
721 #define delta_type_node cp_global_trees[CPTI_DELTA_TYPE]
722 /* The type used to represent an index into the vtable. */
723 #define vtable_index_type cp_global_trees[CPTI_VTABLE_INDEX_TYPE]
725 #define class_type_node cp_global_trees[CPTI_CLASS_TYPE]
726 #define unknown_type_node cp_global_trees[CPTI_UNKNOWN_TYPE]
727 #define init_list_type_node cp_global_trees[CPTI_INIT_LIST_TYPE]
728 #define vtbl_type_node cp_global_trees[CPTI_VTBL_TYPE]
729 #define vtbl_ptr_type_node cp_global_trees[CPTI_VTBL_PTR_TYPE]
730 #define std_node cp_global_trees[CPTI_STD]
731 #define abi_node cp_global_trees[CPTI_ABI]
732 #define const_type_info_type_node cp_global_trees[CPTI_CONST_TYPE_INFO_TYPE]
733 #define type_info_ptr_type cp_global_trees[CPTI_TYPE_INFO_PTR_TYPE]
734 #define abort_fndecl cp_global_trees[CPTI_ABORT_FNDECL]
735 #define global_delete_fndecl cp_global_trees[CPTI_GLOBAL_DELETE_FNDECL]
736 #define current_aggr cp_global_trees[CPTI_AGGR_TAG]
738 /* We cache these tree nodes so as to call get_identifier less
741 /* The name of a constructor that takes an in-charge parameter to
742 decide whether or not to construct virtual base classes. */
743 #define ctor_identifier cp_global_trees[CPTI_CTOR_IDENTIFIER]
744 /* The name of a constructor that constructs virtual base classes. */
745 #define complete_ctor_identifier cp_global_trees[CPTI_COMPLETE_CTOR_IDENTIFIER]
746 /* The name of a constructor that does not construct virtual base classes. */
747 #define base_ctor_identifier cp_global_trees[CPTI_BASE_CTOR_IDENTIFIER]
748 /* The name of a destructor that takes an in-charge parameter to
749 decide whether or not to destroy virtual base classes and whether
750 or not to delete the object. */
751 #define dtor_identifier cp_global_trees[CPTI_DTOR_IDENTIFIER]
752 /* The name of a destructor that destroys virtual base classes. */
753 #define complete_dtor_identifier cp_global_trees[CPTI_COMPLETE_DTOR_IDENTIFIER]
754 /* The name of a destructor that does not destroy virtual base
756 #define base_dtor_identifier cp_global_trees[CPTI_BASE_DTOR_IDENTIFIER]
757 /* The name of a destructor that destroys virtual base classes, and
758 then deletes the entire object. */
759 #define deleting_dtor_identifier cp_global_trees[CPTI_DELETING_DTOR_IDENTIFIER]
760 #define delta_identifier cp_global_trees[CPTI_DELTA_IDENTIFIER]
761 #define in_charge_identifier cp_global_trees[CPTI_IN_CHARGE_IDENTIFIER]
762 /* The name of the parameter that contains a pointer to the VTT to use
763 for this subobject constructor or destructor. */
764 #define vtt_parm_identifier cp_global_trees[CPTI_VTT_PARM_IDENTIFIER]
765 #define nelts_identifier cp_global_trees[CPTI_NELTS_IDENTIFIER]
766 #define this_identifier cp_global_trees[CPTI_THIS_IDENTIFIER]
767 #define pfn_identifier cp_global_trees[CPTI_PFN_IDENTIFIER]
768 #define vptr_identifier cp_global_trees[CPTI_VPTR_IDENTIFIER]
769 /* The name of the std namespace. */
770 #define std_identifier cp_global_trees[CPTI_STD_IDENTIFIER]
771 #define lang_name_c cp_global_trees[CPTI_LANG_NAME_C]
772 #define lang_name_cplusplus cp_global_trees[CPTI_LANG_NAME_CPLUSPLUS]
773 #define lang_name_java cp_global_trees[CPTI_LANG_NAME_JAVA]
775 /* Exception specifier used for throw(). */
776 #define empty_except_spec cp_global_trees[CPTI_EMPTY_EXCEPT_SPEC]
778 /* If non-NULL, a POINTER_TYPE equivalent to (java::lang::Class*). */
779 #define jclass_node cp_global_trees[CPTI_JCLASS]
781 /* The declaration for `std::terminate'. */
782 #define terminate_node cp_global_trees[CPTI_TERMINATE]
784 /* The declaration for "__cxa_call_unexpected". */
785 #define call_unexpected_node cp_global_trees[CPTI_CALL_UNEXPECTED]
787 /* The type of the function-pointer argument to "__cxa_atexit" (or
788 "std::atexit", if "__cxa_atexit" is not being used). */
789 #define atexit_fn_ptr_type_node cp_global_trees[CPTI_ATEXIT_FN_PTR_TYPE]
791 /* A pointer to `std::atexit'. */
792 #define atexit_node cp_global_trees[CPTI_ATEXIT]
794 /* A pointer to `__dso_handle'. */
795 #define dso_handle_node cp_global_trees[CPTI_DSO_HANDLE]
797 /* The declaration of the dynamic_cast runtime. */
798 #define dynamic_cast_node cp_global_trees[CPTI_DCAST]
800 /* The type of a destructor. */
801 #define cleanup_type cp_global_trees[CPTI_CLEANUP_TYPE]
803 /* The type of the vtt parameter passed to subobject constructors and
805 #define vtt_parm_type cp_global_trees[CPTI_VTT_PARM_TYPE]
807 /* A TREE_LIST of the dynamic classes whose vtables may have to be
808 emitted in this translation unit. */
810 #define keyed_classes cp_global_trees[CPTI_KEYED_CLASSES]
812 /* Node to indicate default access. This must be distinct from the
813 access nodes in tree.h. */
815 #define access_default_node null_node
819 struct GTY(()) saved_scope {
820 VEC(cxx_saved_binding,gc) *old_bindings;
825 tree access_specifier;
827 VEC(tree,gc) *lang_base;
830 struct cp_binding_level *x_previous_class_level;
833 int x_processing_template_decl;
834 int x_processing_specialization;
835 BOOL_BITFIELD x_processing_explicit_instantiation : 1;
836 BOOL_BITFIELD need_pop_function_context : 1;
838 int unevaluated_operand;
839 int inhibit_evaluation_warnings;
841 struct stmt_tree_s x_stmt_tree;
843 struct cp_binding_level *class_bindings;
844 struct cp_binding_level *bindings;
846 struct saved_scope *prev;
849 /* The current open namespace. */
851 #define current_namespace scope_chain->old_namespace
853 /* The stack for namespaces of current declarations. */
855 #define decl_namespace_list scope_chain->decl_ns_list
857 /* IDENTIFIER_NODE: name of current class */
859 #define current_class_name scope_chain->class_name
861 /* _TYPE: the type of the current class */
863 #define current_class_type scope_chain->class_type
865 /* When parsing a class definition, the access specifier most recently
866 given by the user, or, if no access specifier was given, the
867 default value appropriate for the kind of class (i.e., struct,
870 #define current_access_specifier scope_chain->access_specifier
872 /* Pointer to the top of the language name stack. */
874 #define current_lang_base scope_chain->lang_base
875 #define current_lang_name scope_chain->lang_name
877 /* When parsing a template declaration, a TREE_LIST represents the
878 active template parameters. Each node in the list represents one
879 level of template parameters. The innermost level is first in the
880 list. The depth of each level is stored as an INTEGER_CST in the
881 TREE_PURPOSE of each node. The parameters for that level are
882 stored in the TREE_VALUE. */
884 #define current_template_parms scope_chain->template_parms
886 #define processing_template_decl scope_chain->x_processing_template_decl
887 #define processing_specialization scope_chain->x_processing_specialization
888 #define processing_explicit_instantiation scope_chain->x_processing_explicit_instantiation
890 /* The cached class binding level, from the most recently exited
891 class, or NULL if none. */
893 #define previous_class_level scope_chain->x_previous_class_level
895 /* A list of private types mentioned, for deferred access checking. */
897 extern GTY(()) struct saved_scope *scope_chain;
899 struct GTY(()) cxx_int_tree_map {
904 extern unsigned int cxx_int_tree_map_hash (const void *);
905 extern int cxx_int_tree_map_eq (const void *, const void *);
907 /* Global state pertinent to the current function. */
909 struct GTY(()) language_function {
910 struct c_language_function base;
913 tree x_current_class_ptr;
914 tree x_current_class_ref;
915 tree x_eh_spec_block;
916 tree x_in_charge_parm;
920 BOOL_BITFIELD returns_value : 1;
921 BOOL_BITFIELD returns_null : 1;
922 BOOL_BITFIELD returns_abnormally : 1;
923 BOOL_BITFIELD in_function_try_handler : 1;
924 BOOL_BITFIELD in_base_initializer : 1;
926 /* True if this function can throw an exception. */
927 BOOL_BITFIELD can_throw : 1;
929 htab_t GTY((param_is(struct named_label_entry))) x_named_labels;
930 struct cp_binding_level *bindings;
931 VEC(tree,gc) *x_local_names;
932 htab_t GTY((param_is (struct cxx_int_tree_map))) extern_decl_map;
935 /* The current C++-specific per-function global variables. */
937 #define cp_function_chain (cfun->language)
939 /* In a constructor destructor, the point at which all derived class
940 destroying/construction has been done. I.e., just before a
941 constructor returns, or before any base class destroying will be done
944 #define cdtor_label cp_function_chain->x_cdtor_label
946 /* When we're processing a member function, current_class_ptr is the
947 PARM_DECL for the `this' pointer. The current_class_ref is an
948 expression for `*this'. */
950 #define current_class_ptr \
951 (cfun ? cp_function_chain->x_current_class_ptr : NULL_TREE)
952 #define current_class_ref \
953 (cfun ? cp_function_chain->x_current_class_ref : NULL_TREE)
955 /* The EH_SPEC_BLOCK for the exception-specifiers for the current
958 #define current_eh_spec_block cp_function_chain->x_eh_spec_block
960 /* The `__in_chrg' parameter for the current function. Only used for
961 constructors and destructors. */
963 #define current_in_charge_parm cp_function_chain->x_in_charge_parm
965 /* The `__vtt_parm' parameter for the current function. Only used for
966 constructors and destructors. */
968 #define current_vtt_parm cp_function_chain->x_vtt_parm
970 /* Set to 0 at beginning of a function definition, set to 1 if
971 a return statement that specifies a return value is seen. */
973 #define current_function_returns_value cp_function_chain->returns_value
975 /* Set to 0 at beginning of a function definition, set to 1 if
976 a return statement with no argument is seen. */
978 #define current_function_returns_null cp_function_chain->returns_null
980 /* Set to 0 at beginning of a function definition, set to 1 if
981 a call to a noreturn function is seen. */
983 #define current_function_returns_abnormally \
984 cp_function_chain->returns_abnormally
986 /* Nonzero if we are processing a base initializer. Zero elsewhere. */
987 #define in_base_initializer cp_function_chain->in_base_initializer
989 #define in_function_try_handler cp_function_chain->in_function_try_handler
991 /* Expression always returned from function, or error_mark_node
992 otherwise, for use by the automatic named return value optimization. */
994 #define current_function_return_value \
995 (cp_function_chain->x_return_value)
997 /* True if NAME is the IDENTIFIER_NODE for an overloaded "operator
998 new" or "operator delete". */
999 #define NEW_DELETE_OPNAME_P(NAME) \
1000 ((NAME) == ansi_opname (NEW_EXPR) \
1001 || (NAME) == ansi_opname (VEC_NEW_EXPR) \
1002 || (NAME) == ansi_opname (DELETE_EXPR) \
1003 || (NAME) == ansi_opname (VEC_DELETE_EXPR))
1005 #define ansi_opname(CODE) \
1006 (operator_name_info[(int) (CODE)].identifier)
1007 #define ansi_assopname(CODE) \
1008 (assignment_operator_name_info[(int) (CODE)].identifier)
1010 /* True if NODE is an erroneous expression. */
1012 #define error_operand_p(NODE) \
1013 ((NODE) == error_mark_node \
1014 || ((NODE) && TREE_TYPE ((NODE)) == error_mark_node))
1016 /* TRUE if a tree code represents a statement. */
1017 extern bool statement_code_p[MAX_TREE_CODES];
1019 #define STATEMENT_CODE_P(CODE) statement_code_p[(int) (CODE)]
1021 enum languages { lang_c, lang_cplusplus, lang_java };
1023 /* Macros to make error reporting functions' lives easier. */
1024 #define TYPE_IDENTIFIER(NODE) (DECL_NAME (TYPE_NAME (NODE)))
1025 #define TYPE_LINKAGE_IDENTIFIER(NODE) \
1026 (TYPE_IDENTIFIER (TYPE_MAIN_VARIANT (NODE)))
1027 #define TYPE_NAME_STRING(NODE) (IDENTIFIER_POINTER (TYPE_IDENTIFIER (NODE)))
1028 #define TYPE_NAME_LENGTH(NODE) (IDENTIFIER_LENGTH (TYPE_IDENTIFIER (NODE)))
1030 /* Nonzero if NODE has no name for linkage purposes. */
1031 #define TYPE_ANONYMOUS_P(NODE) \
1032 (TAGGED_TYPE_P (NODE) && ANON_AGGRNAME_P (TYPE_LINKAGE_IDENTIFIER (NODE)))
1034 /* The _DECL for this _TYPE. */
1035 #define TYPE_MAIN_DECL(NODE) (TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE)))
1037 /* Nonzero if T is a class (or struct or union) type. Also nonzero
1038 for template type parameters, typename types, and instantiated
1039 template template parameters. Keep these checks in ascending code
1041 #define MAYBE_CLASS_TYPE_P(T) \
1042 (TREE_CODE (T) == TEMPLATE_TYPE_PARM \
1043 || TREE_CODE (T) == TYPENAME_TYPE \
1044 || TREE_CODE (T) == TYPEOF_TYPE \
1045 || TREE_CODE (T) == BOUND_TEMPLATE_TEMPLATE_PARM \
1046 || TREE_CODE (T) == DECLTYPE_TYPE \
1047 || CLASS_TYPE_P (T))
1049 /* Set CLASS_TYPE_P for T to VAL. T must be a class, struct, or
1051 #define SET_CLASS_TYPE_P(T, VAL) \
1052 (TYPE_LANG_FLAG_5 (T) = (VAL))
1054 /* Nonzero if T is a class type. Zero for template type parameters,
1055 typename types, and so forth. */
1056 #define CLASS_TYPE_P(T) \
1057 (RECORD_OR_UNION_CODE_P (TREE_CODE (T)) && TYPE_LANG_FLAG_5 (T))
1059 /* Nonzero if T is a class type but not an union. */
1060 #define NON_UNION_CLASS_TYPE_P(T) \
1061 (CLASS_TYPE_P (T) && TREE_CODE (T) != UNION_TYPE)
1063 /* Keep these checks in ascending code order. */
1064 #define RECORD_OR_UNION_CODE_P(T) \
1065 ((T) == RECORD_TYPE || (T) == UNION_TYPE)
1066 #define TAGGED_TYPE_P(T) \
1067 (CLASS_TYPE_P (T) || TREE_CODE (T) == ENUMERAL_TYPE)
1068 #define IS_OVERLOAD_TYPE(T) TAGGED_TYPE_P (T)
1070 /* True if this a "Java" type, defined in 'extern "Java"'. */
1071 #define TYPE_FOR_JAVA(NODE) TYPE_LANG_FLAG_3 (NODE)
1073 /* True if this type is dependent. This predicate is only valid if
1074 TYPE_DEPENDENT_P_VALID is true. */
1075 #define TYPE_DEPENDENT_P(NODE) TYPE_LANG_FLAG_0 (NODE)
1077 /* True if dependent_type_p has been called for this type, with the
1078 result that TYPE_DEPENDENT_P is valid. */
1079 #define TYPE_DEPENDENT_P_VALID(NODE) TYPE_LANG_FLAG_6(NODE)
1081 /* Nonzero if this type is const-qualified. */
1082 #define CP_TYPE_CONST_P(NODE) \
1083 ((cp_type_quals (NODE) & TYPE_QUAL_CONST) != 0)
1085 /* Nonzero if this type is volatile-qualified. */
1086 #define CP_TYPE_VOLATILE_P(NODE) \
1087 ((cp_type_quals (NODE) & TYPE_QUAL_VOLATILE) != 0)
1089 /* Nonzero if this type is restrict-qualified. */
1090 #define CP_TYPE_RESTRICT_P(NODE) \
1091 ((cp_type_quals (NODE) & TYPE_QUAL_RESTRICT) != 0)
1093 /* Nonzero if this type is const-qualified, but not
1094 volatile-qualified. Other qualifiers are ignored. This macro is
1095 used to test whether or not it is OK to bind an rvalue to a
1097 #define CP_TYPE_CONST_NON_VOLATILE_P(NODE) \
1098 ((cp_type_quals (NODE) & (TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE)) \
1101 #define FUNCTION_ARG_CHAIN(NODE) \
1102 TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (NODE)))
1104 /* Given a FUNCTION_DECL, returns the first TREE_LIST out of TYPE_ARG_TYPES
1105 which refers to a user-written parameter. */
1106 #define FUNCTION_FIRST_USER_PARMTYPE(NODE) \
1107 skip_artificial_parms_for ((NODE), TYPE_ARG_TYPES (TREE_TYPE (NODE)))
1109 /* Similarly, but for DECL_ARGUMENTS. */
1110 #define FUNCTION_FIRST_USER_PARM(NODE) \
1111 skip_artificial_parms_for ((NODE), DECL_ARGUMENTS (NODE))
1113 /* Nonzero iff TYPE is derived from PARENT. Ignores accessibility and
1114 ambiguity issues. */
1115 #define DERIVED_FROM_P(PARENT, TYPE) \
1116 (lookup_base ((TYPE), (PARENT), ba_any, NULL) != NULL_TREE)
1117 /* Nonzero iff TYPE is uniquely derived from PARENT. Ignores
1119 #define UNIQUELY_DERIVED_FROM_P(PARENT, TYPE) \
1120 (lookup_base ((TYPE), (PARENT), ba_unique | ba_quiet, NULL) != NULL_TREE)
1121 /* Nonzero iff TYPE is publicly & uniquely derived from PARENT. */
1122 #define PUBLICLY_UNIQUELY_DERIVED_P(PARENT, TYPE) \
1123 (lookup_base ((TYPE), (PARENT), ba_ignore_scope | ba_check | ba_quiet, \
1126 /* Gives the visibility specification for a class type. */
1127 #define CLASSTYPE_VISIBILITY(TYPE) \
1128 DECL_VISIBILITY (TYPE_NAME (TYPE))
1129 #define CLASSTYPE_VISIBILITY_SPECIFIED(TYPE) \
1130 DECL_VISIBILITY_SPECIFIED (TYPE_NAME (TYPE))
1132 typedef struct GTY (()) tree_pair_s {
1136 typedef tree_pair_s *tree_pair_p;
1137 DEF_VEC_O (tree_pair_s);
1138 DEF_VEC_ALLOC_O (tree_pair_s,gc);
1140 /* This is a few header flags for 'struct lang_type'. Actually,
1141 all but the first are used only for lang_type_class; they
1142 are put in this structure to save space. */
1143 struct GTY(()) lang_type_header {
1144 BOOL_BITFIELD is_lang_type_class : 1;
1146 BOOL_BITFIELD has_type_conversion : 1;
1147 BOOL_BITFIELD has_init_ref : 1;
1148 BOOL_BITFIELD has_default_ctor : 1;
1149 BOOL_BITFIELD const_needs_init : 1;
1150 BOOL_BITFIELD ref_needs_init : 1;
1151 BOOL_BITFIELD has_const_assign_ref : 1;
1153 BOOL_BITFIELD spare : 1;
1156 /* This structure provides additional information above and beyond
1157 what is provide in the ordinary tree_type. In the past, we used it
1158 for the types of class types, template parameters types, typename
1159 types, and so forth. However, there can be many (tens to hundreds
1160 of thousands) of template parameter types in a compilation, and
1161 there's no need for this additional information in that case.
1162 Therefore, we now use this data structure only for class types.
1164 In the past, it was thought that there would be relatively few
1165 class types. However, in the presence of heavy use of templates,
1166 many (i.e., thousands) of classes can easily be generated.
1167 Therefore, we should endeavor to keep the size of this structure to
1169 struct GTY(()) lang_type_class {
1170 struct lang_type_header h;
1172 unsigned char align;
1174 unsigned has_mutable : 1;
1175 unsigned com_interface : 1;
1176 unsigned non_pod_class : 1;
1177 unsigned nearly_empty_p : 1;
1178 unsigned user_align : 1;
1179 unsigned has_assign_ref : 1;
1180 unsigned has_new : 1;
1181 unsigned has_array_new : 1;
1183 unsigned gets_delete : 2;
1184 unsigned interface_only : 1;
1185 unsigned interface_unknown : 1;
1186 unsigned contains_empty_class_p : 1;
1187 unsigned anon_aggr : 1;
1188 unsigned non_zero_init : 1;
1189 unsigned empty_p : 1;
1191 unsigned vec_new_uses_cookie : 1;
1192 unsigned declared_class : 1;
1193 unsigned diamond_shaped : 1;
1194 unsigned repeated_base : 1;
1195 unsigned being_defined : 1;
1196 unsigned java_interface : 1;
1197 unsigned debug_requested : 1;
1198 unsigned fields_readonly : 1;
1200 unsigned use_template : 2;
1201 unsigned ptrmemfunc_flag : 1;
1202 unsigned was_anonymous : 1;
1203 unsigned lazy_default_ctor : 1;
1204 unsigned lazy_copy_ctor : 1;
1205 unsigned lazy_assignment_op : 1;
1206 unsigned lazy_destructor : 1;
1208 unsigned has_const_init_ref : 1;
1209 unsigned has_complex_init_ref : 1;
1210 unsigned has_complex_assign_ref : 1;
1211 unsigned non_aggregate : 1;
1212 unsigned has_complex_dflt : 1;
1213 unsigned has_list_ctor : 1;
1214 unsigned non_std_layout : 1;
1215 unsigned lazy_move_ctor : 1;
1216 unsigned is_literal : 1;
1218 /* When adding a flag here, consider whether or not it ought to
1219 apply to a template instance if it applies to the template. If
1220 so, make sure to copy it in instantiate_class_template! */
1222 /* There are some bits left to fill out a 32-bit word. Keep track
1223 of this by updating the size of this bitfield whenever you add or
1228 VEC(tree_pair_s,gc) *vcall_indices;
1231 VEC(tree,gc) *vbases;
1232 binding_table nested_udts;
1234 VEC(tree,gc) *pure_virtuals;
1235 tree friend_classes;
1236 VEC(tree,gc) * GTY((reorder ("resort_type_method_vec"))) methods;
1240 tree befriending_classes;
1241 /* In a RECORD_TYPE, information specific to Objective-C++, such
1242 as a list of adopted protocols or a pointer to a corresponding
1243 @interface. See objc/objc-act.h for details. */
1245 /* sorted_fields is sorted based on a pointer, so we need to be able
1246 to resort it if pointers get rearranged. */
1247 struct sorted_fields_type * GTY ((reorder ("resort_sorted_fields")))
1249 /* FIXME reuse another field? */
1253 struct GTY(()) lang_type_ptrmem {
1254 struct lang_type_header h;
1258 struct GTY(()) lang_type {
1261 struct lang_type_header GTY((skip (""))) h;
1262 struct lang_type_class GTY((tag ("1"))) c;
1263 struct lang_type_ptrmem GTY((tag ("0"))) ptrmem;
1264 } GTY((desc ("%h.h.is_lang_type_class"))) u;
1267 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1269 #define LANG_TYPE_CLASS_CHECK(NODE) __extension__ \
1270 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1271 if (! lt->u.h.is_lang_type_class) \
1272 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1275 #define LANG_TYPE_PTRMEM_CHECK(NODE) __extension__ \
1276 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1277 if (lt->u.h.is_lang_type_class) \
1278 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1283 #define LANG_TYPE_CLASS_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.c)
1284 #define LANG_TYPE_PTRMEM_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.ptrmem)
1286 #endif /* ENABLE_TREE_CHECKING */
1288 /* Nonzero for _CLASSTYPE means that operator delete is defined. */
1289 #define TYPE_GETS_DELETE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->gets_delete)
1290 #define TYPE_GETS_REG_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 1)
1292 /* Nonzero if `new NODE[x]' should cause the allocation of extra
1293 storage to indicate how many array elements are in use. */
1294 #define TYPE_VEC_NEW_USES_COOKIE(NODE) \
1295 (CLASS_TYPE_P (NODE) \
1296 && LANG_TYPE_CLASS_CHECK (NODE)->vec_new_uses_cookie)
1298 /* Nonzero means that this _CLASSTYPE node defines ways of converting
1299 itself to other types. */
1300 #define TYPE_HAS_CONVERSION(NODE) \
1301 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_type_conversion)
1303 /* Nonzero means that NODE (a class type) has a default constructor --
1304 but that it has not yet been declared. */
1305 #define CLASSTYPE_LAZY_DEFAULT_CTOR(NODE) \
1306 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_default_ctor)
1308 /* Nonzero means that NODE (a class type) has a copy constructor --
1309 but that it has not yet been declared. */
1310 #define CLASSTYPE_LAZY_COPY_CTOR(NODE) \
1311 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_ctor)
1313 /* Nonzero means that NODE (a class type) has a move constructor --
1314 but that it has not yet been declared. */
1315 #define CLASSTYPE_LAZY_MOVE_CTOR(NODE) \
1316 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_move_ctor)
1318 /* Nonzero means that NODE (a class type) has an assignment operator
1319 -- but that it has not yet been declared. */
1320 #define CLASSTYPE_LAZY_ASSIGNMENT_OP(NODE) \
1321 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_assignment_op)
1323 /* Nonzero means that NODE (a class type) has a destructor -- but that
1324 it has not yet been declared. */
1325 #define CLASSTYPE_LAZY_DESTRUCTOR(NODE) \
1326 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_destructor)
1328 /* Nonzero means that this _CLASSTYPE node overloads operator=(X&). */
1329 #define TYPE_HAS_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_assign_ref)
1331 /* True iff the class type NODE has an "operator =" whose parameter
1332 has a parameter of type "const X&". */
1333 #define TYPE_HAS_CONST_ASSIGN_REF(NODE) \
1334 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_const_assign_ref)
1336 /* Nonzero means that this _CLASSTYPE node has an X(X&) constructor. */
1337 #define TYPE_HAS_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->h.has_init_ref)
1338 #define TYPE_HAS_CONST_INIT_REF(NODE) \
1339 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_init_ref)
1341 /* Nonzero if this class has an X(initializer_list<T>) constructor. */
1342 #define TYPE_HAS_LIST_CTOR(NODE) \
1343 (LANG_TYPE_CLASS_CHECK (NODE)->has_list_ctor)
1345 /* Nonzero if this class defines an overloaded operator new. (An
1346 operator new [] doesn't count.) */
1347 #define TYPE_HAS_NEW_OPERATOR(NODE) \
1348 (LANG_TYPE_CLASS_CHECK (NODE)->has_new)
1350 /* Nonzero if this class defines an overloaded operator new[]. */
1351 #define TYPE_HAS_ARRAY_NEW_OPERATOR(NODE) \
1352 (LANG_TYPE_CLASS_CHECK (NODE)->has_array_new)
1354 /* Nonzero means that this type is being defined. I.e., the left brace
1355 starting the definition of this type has been seen. */
1356 #define TYPE_BEING_DEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->being_defined)
1358 /* Mark bits for repeated base checks. */
1359 #define TYPE_MARKED_P(NODE) TREE_LANG_FLAG_6 (TYPE_CHECK (NODE))
1361 /* Nonzero if the class NODE has multiple paths to the same (virtual)
1363 #define CLASSTYPE_DIAMOND_SHAPED_P(NODE) \
1364 (LANG_TYPE_CLASS_CHECK(NODE)->diamond_shaped)
1366 /* Nonzero if the class NODE has multiple instances of the same base
1368 #define CLASSTYPE_REPEATED_BASE_P(NODE) \
1369 (LANG_TYPE_CLASS_CHECK(NODE)->repeated_base)
1371 /* The member function with which the vtable will be emitted:
1372 the first noninline non-pure-virtual member function. NULL_TREE
1373 if there is no key function or if this is a class template */
1374 #define CLASSTYPE_KEY_METHOD(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->key_method)
1376 /* Vector member functions defined in this class. Each element is
1377 either a FUNCTION_DECL, a TEMPLATE_DECL, or an OVERLOAD. All
1378 functions with the same name end up in the same slot. The first
1379 two elements are for constructors, and destructors, respectively.
1380 All template conversion operators to innermost template dependent
1381 types are overloaded on the next slot, if they exist. Note, the
1382 names for these functions will not all be the same. The
1383 non-template conversion operators & templated conversions to
1384 non-innermost template types are next, followed by ordinary member
1385 functions. There may be empty entries at the end of the vector.
1386 The conversion operators are unsorted. The ordinary member
1387 functions are sorted, once the class is complete. */
1388 #define CLASSTYPE_METHOD_VEC(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->methods)
1390 /* For class templates, this is a TREE_LIST of all member data,
1391 functions, types, and friends in the order of declaration.
1392 The TREE_PURPOSE of each TREE_LIST is NULL_TREE for a friend,
1393 and the RECORD_TYPE for the class template otherwise. */
1394 #define CLASSTYPE_DECL_LIST(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->decl_list)
1396 /* The slot in the CLASSTYPE_METHOD_VEC where constructors go. */
1397 #define CLASSTYPE_CONSTRUCTOR_SLOT 0
1399 /* The slot in the CLASSTYPE_METHOD_VEC where destructors go. */
1400 #define CLASSTYPE_DESTRUCTOR_SLOT 1
1402 /* The first slot in the CLASSTYPE_METHOD_VEC where conversion
1403 operators can appear. */
1404 #define CLASSTYPE_FIRST_CONVERSION_SLOT 2
1406 /* A FUNCTION_DECL or OVERLOAD for the constructors for NODE. These
1407 are the constructors that take an in-charge parameter. */
1408 #define CLASSTYPE_CONSTRUCTORS(NODE) \
1409 (VEC_index (tree, CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_CONSTRUCTOR_SLOT))
1411 /* A FUNCTION_DECL for the destructor for NODE. These are the
1412 destructors that take an in-charge parameter. If
1413 CLASSTYPE_LAZY_DESTRUCTOR is true, then this entry will be NULL
1414 until the destructor is created with lazily_declare_fn. */
1415 #define CLASSTYPE_DESTRUCTORS(NODE) \
1416 (CLASSTYPE_METHOD_VEC (NODE) \
1417 ? VEC_index (tree, CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_DESTRUCTOR_SLOT) \
1420 /* A dictionary of the nested user-defined-types (class-types, or enums)
1421 found within this class. This table includes nested member class
1423 #define CLASSTYPE_NESTED_UTDS(NODE) \
1424 (LANG_TYPE_CLASS_CHECK (NODE)->nested_udts)
1426 /* Nonzero if NODE has a primary base class, i.e., a base class with
1427 which it shares the virtual function table pointer. */
1428 #define CLASSTYPE_HAS_PRIMARY_BASE_P(NODE) \
1429 (CLASSTYPE_PRIMARY_BINFO (NODE) != NULL_TREE)
1431 /* If non-NULL, this is the binfo for the primary base class, i.e.,
1432 the base class which contains the virtual function table pointer
1434 #define CLASSTYPE_PRIMARY_BINFO(NODE) \
1435 (LANG_TYPE_CLASS_CHECK (NODE)->primary_base)
1437 /* A vector of BINFOs for the direct and indirect virtual base classes
1438 that this type uses in a post-order depth-first left-to-right
1439 order. (In other words, these bases appear in the order that they
1440 should be initialized.) */
1441 #define CLASSTYPE_VBASECLASSES(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->vbases)
1443 /* The type corresponding to NODE when NODE is used as a base class,
1444 i.e., NODE without virtual base classes. */
1446 #define CLASSTYPE_AS_BASE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->as_base)
1448 /* True iff NODE is the CLASSTYPE_AS_BASE version of some type. */
1450 #define IS_FAKE_BASE_TYPE(NODE) \
1451 (TREE_CODE (NODE) == RECORD_TYPE \
1452 && TYPE_CONTEXT (NODE) && CLASS_TYPE_P (TYPE_CONTEXT (NODE)) \
1453 && CLASSTYPE_AS_BASE (TYPE_CONTEXT (NODE)) == (NODE))
1455 /* These are the size and alignment of the type without its virtual
1456 base classes, for when we use this type as a base itself. */
1457 #define CLASSTYPE_SIZE(NODE) TYPE_SIZE (CLASSTYPE_AS_BASE (NODE))
1458 #define CLASSTYPE_SIZE_UNIT(NODE) TYPE_SIZE_UNIT (CLASSTYPE_AS_BASE (NODE))
1459 #define CLASSTYPE_ALIGN(NODE) TYPE_ALIGN (CLASSTYPE_AS_BASE (NODE))
1460 #define CLASSTYPE_USER_ALIGN(NODE) TYPE_USER_ALIGN (CLASSTYPE_AS_BASE (NODE))
1462 /* The alignment of NODE, without its virtual bases, in bytes. */
1463 #define CLASSTYPE_ALIGN_UNIT(NODE) \
1464 (CLASSTYPE_ALIGN (NODE) / BITS_PER_UNIT)
1466 /* True if this a Java interface type, declared with
1467 '__attribute__ ((java_interface))'. */
1468 #define TYPE_JAVA_INTERFACE(NODE) \
1469 (LANG_TYPE_CLASS_CHECK (NODE)->java_interface)
1471 /* A VEC(tree) of virtual functions which cannot be inherited by
1472 derived classes. When deriving from this type, the derived
1473 class must provide its own definition for each of these functions. */
1474 #define CLASSTYPE_PURE_VIRTUALS(NODE) \
1475 (LANG_TYPE_CLASS_CHECK (NODE)->pure_virtuals)
1477 /* Nonzero means that this type has an X() constructor. */
1478 #define TYPE_HAS_DEFAULT_CONSTRUCTOR(NODE) \
1479 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_default_ctor)
1481 /* Nonzero means that this type contains a mutable member. */
1482 #define CLASSTYPE_HAS_MUTABLE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_mutable)
1483 #define TYPE_HAS_MUTABLE_P(NODE) (cp_has_mutable_p (NODE))
1485 /* Nonzero means that this class type is not POD for the purpose of layout
1486 (as defined in the ABI). This is different from the language's POD. */
1487 #define CLASSTYPE_NON_LAYOUT_POD_P(NODE) \
1488 (LANG_TYPE_CLASS_CHECK (NODE)->non_pod_class)
1490 /* Nonzero means that this class type is a non-standard-layout class. */
1491 #define CLASSTYPE_NON_STD_LAYOUT(NODE) \
1492 (LANG_TYPE_CLASS_CHECK (NODE)->non_std_layout)
1494 /* Nonzero means that this class contains pod types whose default
1495 initialization is not a zero initialization (namely, pointers to
1497 #define CLASSTYPE_NON_ZERO_INIT_P(NODE) \
1498 (LANG_TYPE_CLASS_CHECK (NODE)->non_zero_init)
1500 /* Nonzero if this class is "empty" in the sense of the C++ ABI. */
1501 #define CLASSTYPE_EMPTY_P(NODE) \
1502 (LANG_TYPE_CLASS_CHECK (NODE)->empty_p)
1504 /* Nonzero if this class is "nearly empty", i.e., contains only a
1505 virtual function table pointer. */
1506 #define CLASSTYPE_NEARLY_EMPTY_P(NODE) \
1507 (LANG_TYPE_CLASS_CHECK (NODE)->nearly_empty_p)
1509 /* Nonzero if this class contains an empty subobject. */
1510 #define CLASSTYPE_CONTAINS_EMPTY_CLASS_P(NODE) \
1511 (LANG_TYPE_CLASS_CHECK (NODE)->contains_empty_class_p)
1513 /* A list of class types of which this type is a friend. The
1514 TREE_VALUE is normally a TYPE, but will be a TEMPLATE_DECL in the
1515 case of a template friend. */
1516 #define CLASSTYPE_FRIEND_CLASSES(NODE) \
1517 (LANG_TYPE_CLASS_CHECK (NODE)->friend_classes)
1519 /* A list of the classes which grant friendship to this class. */
1520 #define CLASSTYPE_BEFRIENDING_CLASSES(NODE) \
1521 (LANG_TYPE_CLASS_CHECK (NODE)->befriending_classes)
1523 /* The associated LAMBDA_EXPR that made this class. */
1524 #define CLASSTYPE_LAMBDA_EXPR(NODE) \
1525 (LANG_TYPE_CLASS_CHECK (NODE)->lambda_expr)
1526 /* The extra mangling scope for this closure type. */
1527 #define LAMBDA_TYPE_EXTRA_SCOPE(NODE) \
1528 (LAMBDA_EXPR_EXTRA_SCOPE (CLASSTYPE_LAMBDA_EXPR (NODE)))
1530 /* Say whether this node was declared as a "class" or a "struct". */
1531 #define CLASSTYPE_DECLARED_CLASS(NODE) \
1532 (LANG_TYPE_CLASS_CHECK (NODE)->declared_class)
1534 /* Nonzero if this class has const members
1535 which have no specified initialization. */
1536 #define CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE) \
1537 (TYPE_LANG_SPECIFIC (NODE) \
1538 ? LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init : 0)
1539 #define SET_CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE, VALUE) \
1540 (LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init = (VALUE))
1542 /* Nonzero if this class has ref members
1543 which have no specified initialization. */
1544 #define CLASSTYPE_REF_FIELDS_NEED_INIT(NODE) \
1545 (TYPE_LANG_SPECIFIC (NODE) \
1546 ? LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init : 0)
1547 #define SET_CLASSTYPE_REF_FIELDS_NEED_INIT(NODE, VALUE) \
1548 (LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init = (VALUE))
1550 /* Nonzero if this class is included from a header file which employs
1551 `#pragma interface', and it is not included in its implementation file. */
1552 #define CLASSTYPE_INTERFACE_ONLY(NODE) \
1553 (LANG_TYPE_CLASS_CHECK (NODE)->interface_only)
1555 /* True if we have already determined whether or not vtables, VTTs,
1556 typeinfo, and other similar per-class data should be emitted in
1557 this translation unit. This flag does not indicate whether or not
1558 these items should be emitted; it only indicates that we know one
1559 way or the other. */
1560 #define CLASSTYPE_INTERFACE_KNOWN(NODE) \
1561 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown == 0)
1562 /* The opposite of CLASSTYPE_INTERFACE_KNOWN. */
1563 #define CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1564 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown)
1566 #define SET_CLASSTYPE_INTERFACE_UNKNOWN_X(NODE,X) \
1567 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = !!(X))
1568 #define SET_CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1569 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 1)
1570 #define SET_CLASSTYPE_INTERFACE_KNOWN(NODE) \
1571 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 0)
1573 /* Nonzero if a _DECL node requires us to output debug info for this class. */
1574 #define CLASSTYPE_DEBUG_REQUESTED(NODE) \
1575 (LANG_TYPE_CLASS_CHECK (NODE)->debug_requested)
1577 /* Additional macros for inheritance information. */
1579 /* Nonzero means that this class is on a path leading to a new vtable. */
1580 #define BINFO_VTABLE_PATH_MARKED(NODE) BINFO_FLAG_1 (NODE)
1582 /* Nonzero means B (a BINFO) has its own vtable. Any copies will not
1583 have this flag set. */
1584 #define BINFO_NEW_VTABLE_MARKED(B) (BINFO_FLAG_2 (B))
1586 /* Compare a BINFO_TYPE with another type for equality. For a binfo,
1587 this is functionally equivalent to using same_type_p, but
1588 measurably faster. At least one of the arguments must be a
1589 BINFO_TYPE. The other can be a BINFO_TYPE or a regular type. If
1590 BINFO_TYPE(T) ever stops being the main variant of the class the
1591 binfo is for, this macro must change. */
1592 #define SAME_BINFO_TYPE_P(A, B) ((A) == (B))
1594 /* Any subobject that needs a new vtable must have a vptr and must not
1595 be a non-virtual primary base (since it would then use the vtable from a
1596 derived class and never become non-primary.) */
1597 #define SET_BINFO_NEW_VTABLE_MARKED(B) \
1598 (BINFO_NEW_VTABLE_MARKED (B) = 1, \
1599 gcc_assert (!BINFO_PRIMARY_P (B) || BINFO_VIRTUAL_P (B)), \
1600 gcc_assert (TYPE_VFIELD (BINFO_TYPE (B))))
1602 /* Nonzero if this binfo is for a dependent base - one that should not
1604 #define BINFO_DEPENDENT_BASE_P(NODE) BINFO_FLAG_3 (NODE)
1606 /* Nonzero if this binfo has lost its primary base binfo (because that
1607 is a nearly-empty virtual base that has been taken by some other
1608 base in the complete hierarchy. */
1609 #define BINFO_LOST_PRIMARY_P(NODE) BINFO_FLAG_4 (NODE)
1611 /* Nonzero if this BINFO is a primary base class. */
1612 #define BINFO_PRIMARY_P(NODE) BINFO_FLAG_5(NODE)
1614 /* Used by various search routines. */
1615 #define IDENTIFIER_MARKED(NODE) TREE_LANG_FLAG_0 (NODE)
1617 /* A VEC(tree_pair_s) of the vcall indices associated with the class
1618 NODE. The PURPOSE of each element is a FUNCTION_DECL for a virtual
1619 function. The VALUE is the index into the virtual table where the
1620 vcall offset for that function is stored, when NODE is a virtual
1622 #define CLASSTYPE_VCALL_INDICES(NODE) \
1623 (LANG_TYPE_CLASS_CHECK (NODE)->vcall_indices)
1625 /* The various vtables for the class NODE. The primary vtable will be
1626 first, followed by the construction vtables and VTT, if any. */
1627 #define CLASSTYPE_VTABLES(NODE) \
1628 (LANG_TYPE_CLASS_CHECK (NODE)->vtables)
1630 /* The std::type_info variable representing this class, or NULL if no
1631 such variable has been created. This field is only set for the
1632 TYPE_MAIN_VARIANT of the class. */
1633 #define CLASSTYPE_TYPEINFO_VAR(NODE) \
1634 (LANG_TYPE_CLASS_CHECK (NODE)->typeinfo_var)
1636 /* Accessor macros for the BINFO_VIRTUALS list. */
1638 /* The number of bytes by which to adjust the `this' pointer when
1639 calling this virtual function. Subtract this value from the this
1640 pointer. Always non-NULL, might be constant zero though. */
1641 #define BV_DELTA(NODE) (TREE_PURPOSE (NODE))
1643 /* If non-NULL, the vtable index at which to find the vcall offset
1644 when calling this virtual function. Add the value at that vtable
1645 index to the this pointer. */
1646 #define BV_VCALL_INDEX(NODE) (TREE_TYPE (NODE))
1648 /* The function to call. */
1649 #define BV_FN(NODE) (TREE_VALUE (NODE))
1652 /* For FUNCTION_TYPE or METHOD_TYPE, a list of the exceptions that
1653 this type can raise. Each TREE_VALUE is a _TYPE. The TREE_VALUE
1654 will be NULL_TREE to indicate a throw specification of `()', or
1655 no exceptions allowed. */
1656 #define TYPE_RAISES_EXCEPTIONS(NODE) TYPE_LANG_SLOT_1 (NODE)
1658 /* For FUNCTION_TYPE or METHOD_TYPE, return 1 iff it is declared `throw()'. */
1659 #define TYPE_NOTHROW_P(NODE) \
1660 (TYPE_RAISES_EXCEPTIONS (NODE) \
1661 && TREE_VALUE (TYPE_RAISES_EXCEPTIONS (NODE)) == NULL_TREE)
1663 /* The binding level associated with the namespace. */
1664 #define NAMESPACE_LEVEL(NODE) \
1665 (LANG_DECL_NS_CHECK (NODE)->level)
1667 /* Flags shared by all forms of DECL_LANG_SPECIFIC.
1669 Some of the flags live here only to make lang_decl_min/fn smaller. Do
1670 not make this struct larger than 32 bits; instead, make sel smaller. */
1672 struct GTY(()) lang_decl_base {
1673 unsigned selector : 16; /* Larger than necessary for faster access. */
1674 ENUM_BITFIELD(languages) language : 4;
1675 unsigned use_template : 2;
1676 unsigned not_really_extern : 1; /* var or fn */
1677 unsigned initialized_in_class : 1; /* var or fn */
1678 unsigned repo_available_p : 1; /* var or fn */
1679 unsigned threadprivate_or_deleted_p : 1; /* var or fn */
1680 unsigned anticipated_p : 1; /* fn or type */
1681 unsigned friend_attr : 1; /* fn or type */
1682 unsigned template_conv_p : 1; /* template only? */
1683 unsigned odr_used : 1; /* var or fn */
1688 /* True for DECL codes which have template info and access. */
1689 #define LANG_DECL_HAS_MIN(NODE) \
1690 (TREE_CODE (NODE) == FUNCTION_DECL \
1691 || TREE_CODE (NODE) == FIELD_DECL \
1692 || TREE_CODE (NODE) == VAR_DECL \
1693 || TREE_CODE (NODE) == CONST_DECL \
1694 || TREE_CODE (NODE) == TYPE_DECL \
1695 || TREE_CODE (NODE) == TEMPLATE_DECL \
1696 || TREE_CODE (NODE) == USING_DECL)
1698 /* DECL_LANG_SPECIFIC for the above codes. */
1700 struct GTY(()) lang_decl_min {
1701 struct lang_decl_base base;
1703 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
1705 In a FUNCTION_DECL for which DECL_THUNK_P does not hold,
1706 VAR_DECL, TYPE_DECL, or TEMPLATE_DECL, this is
1707 DECL_TEMPLATE_INFO. */
1710 union lang_decl_u2 {
1711 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
1712 THUNK_VIRTUAL_OFFSET.
1713 Otherwise this is DECL_ACCESS. */
1714 tree GTY ((tag ("0"))) access;
1716 /* For VAR_DECL in function, this is DECL_DISCRIMINATOR. */
1717 int GTY ((tag ("1"))) discriminator;
1718 } GTY ((desc ("%0.u.base.u2sel"))) u2;
1721 /* Additional DECL_LANG_SPECIFIC information for functions. */
1723 struct GTY(()) lang_decl_fn {
1724 struct lang_decl_min min;
1726 /* In an overloaded operator, this is the value of
1727 DECL_OVERLOADED_OPERATOR_P. */
1728 ENUM_BITFIELD (tree_code) operator_code : 16;
1730 unsigned global_ctor_p : 1;
1731 unsigned global_dtor_p : 1;
1732 unsigned constructor_attr : 1;
1733 unsigned destructor_attr : 1;
1734 unsigned assignment_operator_p : 1;
1735 unsigned static_function : 1;
1736 unsigned pure_virtual : 1;
1737 unsigned defaulted_p : 1;
1739 unsigned has_in_charge_parm_p : 1;
1740 unsigned has_vtt_parm_p : 1;
1741 unsigned pending_inline_p : 1;
1742 unsigned nonconverting : 1;
1743 unsigned thunk_p : 1;
1744 unsigned this_thunk_p : 1;
1745 unsigned hidden_friend_p : 1;
1748 /* For a non-thunk function decl, this is a tree list of
1749 friendly classes. For a thunk function decl, it is the
1750 thunked to function decl. */
1751 tree befriending_classes;
1753 /* For a non-virtual FUNCTION_DECL, this is
1754 DECL_FRIEND_CONTEXT. For a virtual FUNCTION_DECL for which
1755 DECL_THIS_THUNK_P does not hold, this is DECL_THUNKS. Both
1756 this pointer and result pointer adjusting thunks are
1757 chained here. This pointer thunks to return pointer thunks
1758 will be chained on the return pointer thunk. */
1763 /* In a non-thunk FUNCTION_DECL or TEMPLATE_DECL, this is
1764 DECL_CLONED_FUNCTION. */
1765 tree GTY ((tag ("0"))) cloned_function;
1767 /* In a FUNCTION_DECL for which THUNK_P holds this is the
1768 THUNK_FIXED_OFFSET. */
1769 HOST_WIDE_INT GTY ((tag ("1"))) fixed_offset;
1770 } GTY ((desc ("%1.thunk_p"))) u5;
1774 struct cp_token_cache * GTY ((tag ("1"))) pending_inline_info;
1775 struct language_function * GTY ((tag ("0")))
1776 saved_language_function;
1777 } GTY ((desc ("%1.pending_inline_p"))) u;
1781 /* DECL_LANG_SPECIFIC for namespaces. */
1783 struct GTY(()) lang_decl_ns {
1784 struct lang_decl_base base;
1785 struct cp_binding_level *level;
1788 /* DECL_LANG_SPECIFIC for parameters. */
1790 struct GTY(()) lang_decl_parm {
1791 struct lang_decl_base base;
1795 /* DECL_LANG_SPECIFIC for all types. It would be nice to just make this a
1796 union rather than a struct containing a union as its only field, but
1797 tree.h declares it as a struct. */
1799 struct GTY(()) lang_decl {
1800 union GTY((desc ("%h.base.selector"))) lang_decl_u {
1801 struct lang_decl_base GTY ((default)) base;
1802 struct lang_decl_min GTY((tag ("0"))) min;
1803 struct lang_decl_fn GTY ((tag ("1"))) fn;
1804 struct lang_decl_ns GTY((tag ("2"))) ns;
1805 struct lang_decl_parm GTY((tag ("3"))) parm;
1809 /* Looks through a template (if present) to find what it declares. */
1810 #define STRIP_TEMPLATE(NODE) \
1811 (TREE_CODE (NODE) == TEMPLATE_DECL ? DECL_TEMPLATE_RESULT (NODE) : NODE)
1813 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1815 #define LANG_DECL_MIN_CHECK(NODE) __extension__ \
1816 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
1817 if (!LANG_DECL_HAS_MIN (NODE)) \
1818 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1821 /* We want to be able to check DECL_CONSTRUCTOR_P and such on a function
1822 template, not just on a FUNCTION_DECL. So when looking for things in
1823 lang_decl_fn, look down through a TEMPLATE_DECL into its result. */
1824 #define LANG_DECL_FN_CHECK(NODE) __extension__ \
1825 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE)); \
1826 if (!DECL_DECLARES_FUNCTION_P (NODE) || lt->u.base.selector != 1) \
1827 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1830 #define LANG_DECL_NS_CHECK(NODE) __extension__ \
1831 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
1832 if (TREE_CODE (NODE) != NAMESPACE_DECL || lt->u.base.selector != 2) \
1833 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1836 #define LANG_DECL_PARM_CHECK(NODE) __extension__ \
1837 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
1838 if (TREE_CODE (NODE) != PARM_DECL) \
1839 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1842 #define LANG_DECL_U2_CHECK(NODE, TF) __extension__ \
1843 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
1844 if (!LANG_DECL_HAS_MIN (NODE) || lt->u.base.u2sel != TF) \
1845 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1850 #define LANG_DECL_MIN_CHECK(NODE) \
1851 (&DECL_LANG_SPECIFIC (NODE)->u.min)
1853 #define LANG_DECL_FN_CHECK(NODE) \
1854 (&DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE))->u.fn)
1856 #define LANG_DECL_NS_CHECK(NODE) \
1857 (&DECL_LANG_SPECIFIC (NODE)->u.ns)
1859 #define LANG_DECL_PARM_CHECK(NODE) \
1860 (&DECL_LANG_SPECIFIC (NODE)->u.parm)
1862 #define LANG_DECL_U2_CHECK(NODE, TF) \
1863 (&DECL_LANG_SPECIFIC (NODE)->u.min.u2)
1865 #endif /* ENABLE_TREE_CHECKING */
1867 /* For a FUNCTION_DECL or a VAR_DECL, the language linkage for the
1868 declaration. Some entities (like a member function in a local
1869 class, or a local variable) do not have linkage at all, and this
1870 macro should not be used in those cases.
1872 Implementation note: A FUNCTION_DECL without DECL_LANG_SPECIFIC was
1873 created by language-independent code, and has C linkage. Most
1874 VAR_DECLs have C++ linkage, and do not have DECL_LANG_SPECIFIC, but
1875 we do create DECL_LANG_SPECIFIC for variables with non-C++ linkage. */
1876 #define DECL_LANGUAGE(NODE) \
1877 (DECL_LANG_SPECIFIC (NODE) \
1878 ? DECL_LANG_SPECIFIC (NODE)->u.base.language \
1879 : (TREE_CODE (NODE) == FUNCTION_DECL \
1880 ? lang_c : lang_cplusplus))
1882 /* Set the language linkage for NODE to LANGUAGE. */
1883 #define SET_DECL_LANGUAGE(NODE, LANGUAGE) \
1884 (DECL_LANG_SPECIFIC (NODE)->u.base.language = (LANGUAGE))
1886 /* For FUNCTION_DECLs: nonzero means that this function is a constructor. */
1887 #define DECL_CONSTRUCTOR_P(NODE) \
1888 (LANG_DECL_FN_CHECK (NODE)->constructor_attr)
1890 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a complete
1892 #define DECL_COMPLETE_CONSTRUCTOR_P(NODE) \
1893 (DECL_CONSTRUCTOR_P (NODE) \
1894 && DECL_NAME (NODE) == complete_ctor_identifier)
1896 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a base
1898 #define DECL_BASE_CONSTRUCTOR_P(NODE) \
1899 (DECL_CONSTRUCTOR_P (NODE) \
1900 && DECL_NAME (NODE) == base_ctor_identifier)
1902 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor, but not either the
1903 specialized in-charge constructor or the specialized not-in-charge
1905 #define DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P(NODE) \
1906 (DECL_DECLARES_FUNCTION_P (NODE) && DECL_CONSTRUCTOR_P (NODE) \
1907 && !DECL_CLONED_FUNCTION_P (NODE))
1909 /* Nonzero if NODE (a FUNCTION_DECL) is a copy constructor. */
1910 #define DECL_COPY_CONSTRUCTOR_P(NODE) \
1911 (DECL_CONSTRUCTOR_P (NODE) && copy_fn_p (NODE) > 0)
1913 /* Nonzero if NODE (a FUNCTION_DECL) is a move constructor. */
1914 #define DECL_MOVE_CONSTRUCTOR_P(NODE) \
1915 (DECL_CONSTRUCTOR_P (NODE) && move_fn_p (NODE))
1917 /* Nonzero if NODE is a destructor. */
1918 #define DECL_DESTRUCTOR_P(NODE) \
1919 (LANG_DECL_FN_CHECK (NODE)->destructor_attr)
1921 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor, but not the
1922 specialized in-charge constructor, in-charge deleting constructor,
1923 or the base destructor. */
1924 #define DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P(NODE) \
1925 (DECL_DECLARES_FUNCTION_P (NODE) && DECL_DESTRUCTOR_P (NODE) \
1926 && !DECL_CLONED_FUNCTION_P (NODE))
1928 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
1930 #define DECL_COMPLETE_DESTRUCTOR_P(NODE) \
1931 (DECL_DESTRUCTOR_P (NODE) \
1932 && DECL_NAME (NODE) == complete_dtor_identifier)
1934 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a base
1936 #define DECL_BASE_DESTRUCTOR_P(NODE) \
1937 (DECL_DESTRUCTOR_P (NODE) \
1938 && DECL_NAME (NODE) == base_dtor_identifier)
1940 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
1941 object that deletes the object after it has been destroyed. */
1942 #define DECL_DELETING_DESTRUCTOR_P(NODE) \
1943 (DECL_DESTRUCTOR_P (NODE) \
1944 && DECL_NAME (NODE) == deleting_dtor_identifier)
1946 /* Nonzero if NODE (a FUNCTION_DECL) is a cloned constructor or
1948 #define DECL_CLONED_FUNCTION_P(NODE) (!!decl_cloned_function_p (NODE, true))
1950 /* If DECL_CLONED_FUNCTION_P holds, this is the function that was
1952 #define DECL_CLONED_FUNCTION(NODE) (*decl_cloned_function_p (NODE, false))
1954 /* Perform an action for each clone of FN, if FN is a function with
1955 clones. This macro should be used like:
1957 FOR_EACH_CLONE (clone, fn)
1961 #define FOR_EACH_CLONE(CLONE, FN) \
1962 if (TREE_CODE (FN) == FUNCTION_DECL \
1963 && (DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (FN) \
1964 || DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (FN))) \
1965 for (CLONE = TREE_CHAIN (FN); \
1966 CLONE && DECL_CLONED_FUNCTION_P (CLONE); \
1967 CLONE = TREE_CHAIN (CLONE))
1969 /* Nonzero if NODE has DECL_DISCRIMINATOR and not DECL_ACCESS. */
1970 #define DECL_DISCRIMINATOR_P(NODE) \
1971 (TREE_CODE (NODE) == VAR_DECL \
1972 && DECL_FUNCTION_SCOPE_P (NODE))
1974 /* Discriminator for name mangling. */
1975 #define DECL_DISCRIMINATOR(NODE) (LANG_DECL_U2_CHECK (NODE, 1)->discriminator)
1977 /* The index of a user-declared parameter in its function, starting at 1.
1978 All artificial parameters will have index 0. */
1979 #define DECL_PARM_INDEX(NODE) \
1980 (LANG_DECL_PARM_CHECK (NODE)->index)
1982 /* Nonzero if the VTT parm has been added to NODE. */
1983 #define DECL_HAS_VTT_PARM_P(NODE) \
1984 (LANG_DECL_FN_CHECK (NODE)->has_vtt_parm_p)
1986 /* Nonzero if NODE is a FUNCTION_DECL for which a VTT parameter is
1988 #define DECL_NEEDS_VTT_PARM_P(NODE) \
1989 (CLASSTYPE_VBASECLASSES (DECL_CONTEXT (NODE)) \
1990 && (DECL_BASE_CONSTRUCTOR_P (NODE) \
1991 || DECL_BASE_DESTRUCTOR_P (NODE)))
1993 /* Nonzero if NODE is a user-defined conversion operator. */
1994 #define DECL_CONV_FN_P(NODE) \
1995 (DECL_NAME (NODE) && IDENTIFIER_TYPENAME_P (DECL_NAME (NODE)))
1997 /* If FN is a conversion operator, the type to which it converts.
1998 Otherwise, NULL_TREE. */
1999 #define DECL_CONV_FN_TYPE(FN) \
2000 (DECL_CONV_FN_P (FN) ? TREE_TYPE (DECL_NAME (FN)) : NULL_TREE)
2002 /* Nonzero if NODE, which is a TEMPLATE_DECL, is a template
2003 conversion operator to a type dependent on the innermost template
2005 #define DECL_TEMPLATE_CONV_FN_P(NODE) \
2006 (DECL_LANG_SPECIFIC (TEMPLATE_DECL_CHECK (NODE))->u.base.template_conv_p)
2008 /* Set the overloaded operator code for NODE to CODE. */
2009 #define SET_OVERLOADED_OPERATOR_CODE(NODE, CODE) \
2010 (LANG_DECL_FN_CHECK (NODE)->operator_code = (CODE))
2012 /* If NODE is an overloaded operator, then this returns the TREE_CODE
2013 associated with the overloaded operator.
2014 DECL_ASSIGNMENT_OPERATOR_P must also be checked to determine
2015 whether or not NODE is an assignment operator. If NODE is not an
2016 overloaded operator, ERROR_MARK is returned. Since the numerical
2017 value of ERROR_MARK is zero, this macro can be used as a predicate
2018 to test whether or not NODE is an overloaded operator. */
2019 #define DECL_OVERLOADED_OPERATOR_P(NODE) \
2020 (IDENTIFIER_OPNAME_P (DECL_NAME (NODE)) \
2021 ? LANG_DECL_FN_CHECK (NODE)->operator_code : ERROR_MARK)
2023 /* Nonzero if NODE is an assignment operator (including += and such). */
2024 #define DECL_ASSIGNMENT_OPERATOR_P(NODE) \
2025 (LANG_DECL_FN_CHECK (NODE)->assignment_operator_p)
2027 /* For FUNCTION_DECLs: nonzero means that this function is a
2028 constructor or a destructor with an extra in-charge parameter to
2029 control whether or not virtual bases are constructed. */
2030 #define DECL_HAS_IN_CHARGE_PARM_P(NODE) \
2031 (LANG_DECL_FN_CHECK (NODE)->has_in_charge_parm_p)
2033 /* Nonzero if DECL is a declaration of __builtin_constant_p. */
2034 #define DECL_IS_BUILTIN_CONSTANT_P(NODE) \
2035 (TREE_CODE (NODE) == FUNCTION_DECL \
2036 && DECL_BUILT_IN_CLASS (NODE) == BUILT_IN_NORMAL \
2037 && DECL_FUNCTION_CODE (NODE) == BUILT_IN_CONSTANT_P)
2039 /* Nonzero for _DECL means that this decl appears in (or will appear
2040 in) as a member in a RECORD_TYPE or UNION_TYPE node. It is also for
2041 detecting circularity in case members are multiply defined. In the
2042 case of a VAR_DECL, it is also used to determine how program storage
2043 should be allocated. */
2044 #define DECL_IN_AGGR_P(NODE) (DECL_LANG_FLAG_3 (NODE))
2046 /* Nonzero for a VAR_DECL means that the variable's initialization (if
2047 any) has been processed. (In general, DECL_INITIALIZED_P is
2048 !DECL_EXTERN, but static data members may be initialized even if
2050 #define DECL_INITIALIZED_P(NODE) \
2051 (TREE_LANG_FLAG_1 (VAR_DECL_CHECK (NODE)))
2053 /* Nonzero for a VAR_DECL iff an explicit initializer was provided. */
2054 #define DECL_NONTRIVIALLY_INITIALIZED_P(NODE) \
2055 (TREE_LANG_FLAG_3 (VAR_DECL_CHECK (NODE)))
2057 /* Nonzero for a VAR_DECL that was initialized with a
2058 constant-expression. */
2059 #define DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P(NODE) \
2060 (TREE_LANG_FLAG_2 (VAR_DECL_CHECK (NODE)))
2062 /* Nonzero for a VAR_DECL that can be used in an integral constant
2067 An integral constant-expression can only involve ... const
2068 variables of static or enumeration types initialized with
2069 constant expressions ...
2071 The standard does not require that the expression be non-volatile.
2072 G++ implements the proposed correction in DR 457. */
2073 #define DECL_INTEGRAL_CONSTANT_VAR_P(NODE) \
2074 (TREE_CODE (NODE) == VAR_DECL \
2075 && CP_TYPE_CONST_NON_VOLATILE_P (TREE_TYPE (NODE)) \
2076 && INTEGRAL_OR_ENUMERATION_TYPE_P (TREE_TYPE (NODE)) \
2077 && DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (NODE))
2079 /* Nonzero if the DECL was initialized in the class definition itself,
2080 rather than outside the class. This is used for both static member
2081 VAR_DECLS, and FUNCTION_DECLS that are defined in the class. */
2082 #define DECL_INITIALIZED_IN_CLASS_P(DECL) \
2083 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \
2084 ->u.base.initialized_in_class)
2086 /* Nonzero if the DECL is used in the sense of 3.2 [basic.def.odr].
2087 Only available for decls with DECL_LANG_SPECIFIC. */
2088 #define DECL_ODR_USED(DECL) \
2089 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \
2092 /* Nonzero for DECL means that this decl is just a friend declaration,
2093 and should not be added to the list of members for this class. */
2094 #define DECL_FRIEND_P(NODE) (DECL_LANG_SPECIFIC (NODE)->u.base.friend_attr)
2096 /* A TREE_LIST of the types which have befriended this FUNCTION_DECL. */
2097 #define DECL_BEFRIENDING_CLASSES(NODE) \
2098 (LANG_DECL_FN_CHECK (NODE)->befriending_classes)
2100 /* Nonzero for FUNCTION_DECL means that this decl is a static
2102 #define DECL_STATIC_FUNCTION_P(NODE) \
2103 (LANG_DECL_FN_CHECK (NODE)->static_function)
2105 /* Nonzero for FUNCTION_DECL means that this decl is a non-static
2107 #define DECL_NONSTATIC_MEMBER_FUNCTION_P(NODE) \
2108 (TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE)
2110 /* Nonzero for FUNCTION_DECL means that this decl is a member function
2111 (static or non-static). */
2112 #define DECL_FUNCTION_MEMBER_P(NODE) \
2113 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) || DECL_STATIC_FUNCTION_P (NODE))
2115 /* Nonzero for FUNCTION_DECL means that this member function
2116 has `this' as const X *const. */
2117 #define DECL_CONST_MEMFUNC_P(NODE) \
2118 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
2119 && CP_TYPE_CONST_P (TREE_TYPE (TREE_VALUE \
2120 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
2122 /* Nonzero for FUNCTION_DECL means that this member function
2123 has `this' as volatile X *const. */
2124 #define DECL_VOLATILE_MEMFUNC_P(NODE) \
2125 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
2126 && CP_TYPE_VOLATILE_P (TREE_TYPE (TREE_VALUE \
2127 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
2129 /* Nonzero for a DECL means that this member is a non-static member. */
2130 #define DECL_NONSTATIC_MEMBER_P(NODE) \
2131 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
2132 || TREE_CODE (NODE) == FIELD_DECL)
2134 /* Nonzero for _DECL means that this member object type
2136 #define DECL_MUTABLE_P(NODE) (DECL_LANG_FLAG_0 (NODE))
2138 /* Nonzero for _DECL means that this constructor or conversion function is
2140 #define DECL_NONCONVERTING_P(NODE) \
2141 (LANG_DECL_FN_CHECK (NODE)->nonconverting)
2143 /* Nonzero for FUNCTION_DECL means that this member function is a pure
2144 virtual function. */
2145 #define DECL_PURE_VIRTUAL_P(NODE) \
2146 (LANG_DECL_FN_CHECK (NODE)->pure_virtual)
2148 /* True (in a FUNCTION_DECL) if NODE is a virtual function that is an
2149 invalid overrider for a function from a base class. Once we have
2150 complained about an invalid overrider we avoid complaining about it
2152 #define DECL_INVALID_OVERRIDER_P(NODE) \
2153 (DECL_LANG_FLAG_4 (NODE))
2155 /* The thunks associated with NODE, a FUNCTION_DECL. */
2156 #define DECL_THUNKS(NODE) \
2157 (LANG_DECL_FN_CHECK (NODE)->context)
2159 /* Nonzero if NODE is a thunk, rather than an ordinary function. */
2160 #define DECL_THUNK_P(NODE) \
2161 (TREE_CODE (NODE) == FUNCTION_DECL \
2162 && DECL_LANG_SPECIFIC (NODE) \
2163 && LANG_DECL_FN_CHECK (NODE)->thunk_p)
2165 /* Set DECL_THUNK_P for node. */
2166 #define SET_DECL_THUNK_P(NODE, THIS_ADJUSTING) \
2167 (LANG_DECL_FN_CHECK (NODE)->thunk_p = 1, \
2168 LANG_DECL_FN_CHECK (NODE)->this_thunk_p = (THIS_ADJUSTING))
2170 /* Nonzero if NODE is a this pointer adjusting thunk. */
2171 #define DECL_THIS_THUNK_P(NODE) \
2172 (DECL_THUNK_P (NODE) && LANG_DECL_FN_CHECK (NODE)->this_thunk_p)
2174 /* Nonzero if NODE is a result pointer adjusting thunk. */
2175 #define DECL_RESULT_THUNK_P(NODE) \
2176 (DECL_THUNK_P (NODE) && !LANG_DECL_FN_CHECK (NODE)->this_thunk_p)
2178 /* Nonzero if NODE is a FUNCTION_DECL, but not a thunk. */
2179 #define DECL_NON_THUNK_FUNCTION_P(NODE) \
2180 (TREE_CODE (NODE) == FUNCTION_DECL && !DECL_THUNK_P (NODE))
2182 /* Nonzero if NODE is `extern "C"'. */
2183 #define DECL_EXTERN_C_P(NODE) \
2184 (DECL_LANGUAGE (NODE) == lang_c)
2186 /* Nonzero if NODE is an `extern "C"' function. */
2187 #define DECL_EXTERN_C_FUNCTION_P(NODE) \
2188 (DECL_NON_THUNK_FUNCTION_P (NODE) && DECL_EXTERN_C_P (NODE))
2190 /* True iff DECL is an entity with vague linkage whose definition is
2191 available in this translation unit. */
2192 #define DECL_REPO_AVAILABLE_P(NODE) \
2193 (DECL_LANG_SPECIFIC (NODE)->u.base.repo_available_p)
2195 /* True if DECL is declared 'constexpr'. */
2196 #define DECL_DECLARED_CONSTEXPR_P(DECL) \
2197 DECL_LANG_FLAG_8 (VAR_OR_FUNCTION_DECL_CHECK (DECL))
2199 /* Nonzero if this DECL is the __PRETTY_FUNCTION__ variable in a
2200 template function. */
2201 #define DECL_PRETTY_FUNCTION_P(NODE) \
2202 (TREE_LANG_FLAG_0 (VAR_DECL_CHECK (NODE)))
2204 /* The _TYPE context in which this _DECL appears. This field holds the
2205 class where a virtual function instance is actually defined. */
2206 #define DECL_CLASS_CONTEXT(NODE) \
2207 (DECL_CLASS_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : NULL_TREE)
2209 /* For a non-member friend function, the class (if any) in which this
2210 friend was defined. For example, given:
2212 struct S { friend void f (); };
2214 the DECL_FRIEND_CONTEXT for `f' will be `S'. */
2215 #define DECL_FRIEND_CONTEXT(NODE) \
2216 ((DECL_DECLARES_FUNCTION_P (NODE) \
2217 && DECL_FRIEND_P (NODE) && !DECL_FUNCTION_MEMBER_P (NODE)) \
2218 ? LANG_DECL_FN_CHECK (NODE)->context \
2221 /* Set the DECL_FRIEND_CONTEXT for NODE to CONTEXT. */
2222 #define SET_DECL_FRIEND_CONTEXT(NODE, CONTEXT) \
2223 (LANG_DECL_FN_CHECK (NODE)->context = (CONTEXT))
2225 /* NULL_TREE in DECL_CONTEXT represents the global namespace. */
2226 #define CP_DECL_CONTEXT(NODE) \
2227 (DECL_CONTEXT (NODE) ? DECL_CONTEXT (NODE) : global_namespace)
2228 #define CP_TYPE_CONTEXT(NODE) \
2229 (TYPE_CONTEXT (NODE) ? TYPE_CONTEXT (NODE) : global_namespace)
2230 #define FROB_CONTEXT(NODE) ((NODE) == global_namespace ? NULL_TREE : (NODE))
2232 /* 1 iff NODE has namespace scope, including the global namespace. */
2233 #define DECL_NAMESPACE_SCOPE_P(NODE) \
2234 (!DECL_TEMPLATE_PARM_P (NODE) \
2235 && TREE_CODE (CP_DECL_CONTEXT (NODE)) == NAMESPACE_DECL)
2237 #define TYPE_NAMESPACE_SCOPE_P(NODE) \
2238 (TREE_CODE (CP_TYPE_CONTEXT (NODE)) == NAMESPACE_DECL)
2240 /* 1 iff NODE is a class member. */
2241 #define DECL_CLASS_SCOPE_P(NODE) \
2242 (DECL_CONTEXT (NODE) && TYPE_P (DECL_CONTEXT (NODE)))
2244 #define TYPE_CLASS_SCOPE_P(NODE) \
2245 (TYPE_CONTEXT (NODE) && TYPE_P (TYPE_CONTEXT (NODE)))
2247 /* 1 iff NODE is function-local. */
2248 #define DECL_FUNCTION_SCOPE_P(NODE) \
2249 (DECL_CONTEXT (NODE) \
2250 && TREE_CODE (DECL_CONTEXT (NODE)) == FUNCTION_DECL)
2252 /* 1 iff VAR_DECL node NODE is a type-info decl. This flag is set for
2253 both the primary typeinfo object and the associated NTBS name. */
2254 #define DECL_TINFO_P(NODE) TREE_LANG_FLAG_4 (VAR_DECL_CHECK (NODE))
2256 /* 1 iff VAR_DECL node NODE is virtual table or VTT. */
2257 #define DECL_VTABLE_OR_VTT_P(NODE) TREE_LANG_FLAG_5 (VAR_DECL_CHECK (NODE))
2259 /* Returns 1 iff VAR_DECL is a construction virtual table.
2260 DECL_VTABLE_OR_VTT_P will be true in this case and must be checked
2261 before using this macro. */
2262 #define DECL_CONSTRUCTION_VTABLE_P(NODE) \
2263 TREE_LANG_FLAG_6 (VAR_DECL_CHECK (NODE))
2265 /* 1 iff NODE is function-local, but for types. */
2266 #define LOCAL_CLASS_P(NODE) \
2267 (decl_function_context (TYPE_MAIN_DECL (NODE)) != NULL_TREE)
2269 /* For a NAMESPACE_DECL: the list of using namespace directives
2270 The PURPOSE is the used namespace, the value is the namespace
2271 that is the common ancestor. */
2272 #define DECL_NAMESPACE_USING(NODE) DECL_VINDEX (NAMESPACE_DECL_CHECK (NODE))
2274 /* In a NAMESPACE_DECL, the DECL_INITIAL is used to record all users
2275 of a namespace, to record the transitive closure of using namespace. */
2276 #define DECL_NAMESPACE_USERS(NODE) DECL_INITIAL (NAMESPACE_DECL_CHECK (NODE))
2278 /* In a NAMESPACE_DECL, the list of namespaces which have associated
2279 themselves with this one. */
2280 #define DECL_NAMESPACE_ASSOCIATIONS(NODE) \
2281 (NAMESPACE_DECL_CHECK (NODE)->decl_non_common.saved_tree)
2283 /* In a NAMESPACE_DECL, points to the original namespace if this is
2284 a namespace alias. */
2285 #define DECL_NAMESPACE_ALIAS(NODE) \
2286 DECL_ABSTRACT_ORIGIN (NAMESPACE_DECL_CHECK (NODE))
2287 #define ORIGINAL_NAMESPACE(NODE) \
2288 (DECL_NAMESPACE_ALIAS (NODE) ? DECL_NAMESPACE_ALIAS (NODE) : (NODE))
2290 /* Nonzero if NODE is the std namespace. */
2291 #define DECL_NAMESPACE_STD_P(NODE) \
2292 (TREE_CODE (NODE) == NAMESPACE_DECL \
2293 && CP_DECL_CONTEXT (NODE) == global_namespace \
2294 && DECL_NAME (NODE) == std_identifier)
2296 /* In a TREE_LIST concatenating using directives, indicate indirect
2298 #define TREE_INDIRECT_USING(NODE) (TREE_LIST_CHECK (NODE)->base.lang_flag_0)
2300 /* In a TREE_LIST in an attribute list, indicates that the attribute
2301 must be applied at instantiation time. */
2302 #define ATTR_IS_DEPENDENT(NODE) (TREE_LIST_CHECK (NODE)->base.lang_flag_0)
2304 extern tree decl_shadowed_for_var_lookup (tree);
2305 extern void decl_shadowed_for_var_insert (tree, tree);
2307 /* Non zero if this is a using decl for a dependent scope. */
2308 #define DECL_DEPENDENT_P(NODE) DECL_LANG_FLAG_0 (USING_DECL_CHECK (NODE))
2310 /* The scope named in a using decl. */
2311 #define USING_DECL_SCOPE(NODE) TREE_TYPE (USING_DECL_CHECK (NODE))
2313 /* The decls named by a using decl. */
2314 #define USING_DECL_DECLS(NODE) DECL_INITIAL (USING_DECL_CHECK (NODE))
2316 /* In a VAR_DECL, true if we have a shadowed local variable
2317 in the shadowed var table for this VAR_DECL. */
2318 #define DECL_HAS_SHADOWED_FOR_VAR_P(NODE) \
2319 (VAR_DECL_CHECK (NODE)->decl_with_vis.shadowed_for_var_p)
2321 /* In a VAR_DECL for a variable declared in a for statement,
2322 this is the shadowed (local) variable. */
2323 #define DECL_SHADOWED_FOR_VAR(NODE) \
2324 (DECL_HAS_SHADOWED_FOR_VAR_P(NODE) ? decl_shadowed_for_var_lookup (NODE) : NULL)
2326 #define SET_DECL_SHADOWED_FOR_VAR(NODE, VAL) \
2327 (decl_shadowed_for_var_insert (NODE, VAL))
2329 /* In a FUNCTION_DECL, this is nonzero if this function was defined in
2330 the class definition. We have saved away the text of the function,
2331 but have not yet processed it. */
2332 #define DECL_PENDING_INLINE_P(NODE) \
2333 (LANG_DECL_FN_CHECK (NODE)->pending_inline_p)
2335 /* If DECL_PENDING_INLINE_P holds, this is the saved text of the
2337 #define DECL_PENDING_INLINE_INFO(NODE) \
2338 (LANG_DECL_FN_CHECK (NODE)->u.pending_inline_info)
2340 /* For a class type: if this structure has many fields, we'll sort them
2341 and put them into a TREE_VEC. */
2342 #define CLASSTYPE_SORTED_FIELDS(NODE) \
2343 (LANG_TYPE_CLASS_CHECK (NODE)->sorted_fields)
2345 /* If non-NULL for a VAR_DECL, FUNCTION_DECL, TYPE_DECL or
2346 TEMPLATE_DECL, the entity is either a template specialization (if
2347 DECL_USE_TEMPLATE is nonzero) or the abstract instance of the
2350 In either case, DECL_TEMPLATE_INFO is a TREE_LIST, whose
2351 TREE_PURPOSE is the TEMPLATE_DECL of which this entity is a
2352 specialization or abstract instance. The TREE_VALUE is the
2353 template arguments used to specialize the template.
2357 template <typename T> struct S { friend void f(T) {} };
2359 In this case, S<int>::f is, from the point of view of the compiler,
2360 an instantiation of a template -- but, from the point of view of
2361 the language, each instantiation of S results in a wholly unrelated
2362 global function f. In this case, DECL_TEMPLATE_INFO for S<int>::f
2363 will be non-NULL, but DECL_USE_TEMPLATE will be zero. */
2364 #define DECL_TEMPLATE_INFO(NODE) \
2365 (DECL_LANG_SPECIFIC (VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK (NODE)) \
2366 ->u.min.template_info)
2368 /* For a VAR_DECL, indicates that the variable is actually a
2369 non-static data member of anonymous union that has been promoted to
2371 #define DECL_ANON_UNION_VAR_P(NODE) \
2372 (DECL_LANG_FLAG_4 (VAR_DECL_CHECK (NODE)))
2374 /* Template information for a RECORD_TYPE or UNION_TYPE. */
2375 #define CLASSTYPE_TEMPLATE_INFO(NODE) \
2376 (LANG_TYPE_CLASS_CHECK (RECORD_OR_UNION_CHECK (NODE))->template_info)
2378 /* Template information for an ENUMERAL_TYPE. Although an enumeration may
2379 not be a primary template, it may be declared within the scope of a
2380 primary template and the enumeration constants may depend on
2381 non-type template parameters. */
2382 #define ENUM_TEMPLATE_INFO(NODE) \
2383 (TYPE_LANG_SLOT_1 (ENUMERAL_TYPE_CHECK (NODE)))
2385 /* Template information for a template template parameter. */
2386 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO(NODE) \
2387 (LANG_TYPE_CLASS_CHECK (BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK (NODE)) \
2390 /* Template information for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2391 #define TYPE_TEMPLATE_INFO(NODE) \
2392 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2393 ? ENUM_TEMPLATE_INFO (NODE) : \
2394 (TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM \
2395 ? TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO (NODE) : \
2396 (TYPE_LANG_SPECIFIC (NODE) \
2397 ? CLASSTYPE_TEMPLATE_INFO (NODE) \
2400 /* Set the template information for an ENUMERAL_, RECORD_, or
2401 UNION_TYPE to VAL. */
2402 #define SET_TYPE_TEMPLATE_INFO(NODE, VAL) \
2403 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2404 ? (ENUM_TEMPLATE_INFO (NODE) = (VAL)) \
2405 : (CLASSTYPE_TEMPLATE_INFO (NODE) = (VAL)))
2407 #define TI_TEMPLATE(NODE) (TREE_PURPOSE (NODE))
2408 #define TI_ARGS(NODE) (TREE_VALUE (NODE))
2409 #define TI_PENDING_TEMPLATE_FLAG(NODE) TREE_LANG_FLAG_1 (NODE)
2410 /* The list of typedefs - used in the template - that need
2411 access checking at template instantiation time. */
2412 #define TI_TYPEDEFS_NEEDING_ACCESS_CHECKING(NODE) (TREE_CHAIN (NODE))
2414 /* We use TREE_VECs to hold template arguments. If there is only one
2415 level of template arguments, then the TREE_VEC contains the
2416 arguments directly. If there is more than one level of template
2417 arguments, then each entry in the TREE_VEC is itself a TREE_VEC,
2418 containing the template arguments for a single level. The first
2419 entry in the outer TREE_VEC is the outermost level of template
2420 parameters; the last is the innermost.
2422 It is incorrect to ever form a template argument vector containing
2423 only one level of arguments, but which is a TREE_VEC containing as
2424 its only entry the TREE_VEC for that level. */
2426 /* Nonzero if the template arguments is actually a vector of vectors,
2427 rather than just a vector. */
2428 #define TMPL_ARGS_HAVE_MULTIPLE_LEVELS(NODE) \
2429 (NODE && TREE_VEC_LENGTH (NODE) && TREE_VEC_ELT (NODE, 0) \
2430 && TREE_CODE (TREE_VEC_ELT (NODE, 0)) == TREE_VEC)
2432 /* The depth of a template argument vector. When called directly by
2433 the parser, we use a TREE_LIST rather than a TREE_VEC to represent
2434 template arguments. In fact, we may even see NULL_TREE if there
2435 are no template arguments. In both of those cases, there is only
2436 one level of template arguments. */
2437 #define TMPL_ARGS_DEPTH(NODE) \
2438 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (NODE) ? TREE_VEC_LENGTH (NODE) : 1)
2440 /* The LEVELth level of the template ARGS. The outermost level of
2441 args is level 1, not level 0. */
2442 #define TMPL_ARGS_LEVEL(ARGS, LEVEL) \
2443 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (ARGS) \
2444 ? TREE_VEC_ELT (ARGS, (LEVEL) - 1) : (ARGS))
2446 /* Set the LEVELth level of the template ARGS to VAL. This macro does
2447 not work with single-level argument vectors. */
2448 #define SET_TMPL_ARGS_LEVEL(ARGS, LEVEL, VAL) \
2449 (TREE_VEC_ELT (ARGS, (LEVEL) - 1) = (VAL))
2451 /* Accesses the IDXth parameter in the LEVELth level of the ARGS. */
2452 #define TMPL_ARG(ARGS, LEVEL, IDX) \
2453 (TREE_VEC_ELT (TMPL_ARGS_LEVEL (ARGS, LEVEL), IDX))
2455 /* Given a single level of template arguments in NODE, return the
2456 number of arguments. */
2457 #define NUM_TMPL_ARGS(NODE) \
2458 (TREE_VEC_LENGTH (NODE))
2460 /* Returns the innermost level of template arguments in ARGS. */
2461 #define INNERMOST_TEMPLATE_ARGS(NODE) \
2462 (get_innermost_template_args ((NODE), 1))
2464 /* The number of levels of template parameters given by NODE. */
2465 #define TMPL_PARMS_DEPTH(NODE) \
2466 ((HOST_WIDE_INT) TREE_INT_CST_LOW (TREE_PURPOSE (NODE)))
2468 /* The TEMPLATE_DECL instantiated or specialized by NODE. This
2469 TEMPLATE_DECL will be the immediate parent, not the most general
2470 template. For example, in:
2472 template <class T> struct S { template <class U> void f(U); }
2474 the FUNCTION_DECL for S<int>::f<double> will have, as its
2475 DECL_TI_TEMPLATE, `template <class U> S<int>::f<U>'.
2477 As a special case, for a member friend template of a template
2478 class, this value will not be a TEMPLATE_DECL, but rather an
2479 IDENTIFIER_NODE or OVERLOAD indicating the name of the template and
2480 any explicit template arguments provided. For example, in:
2482 template <class T> struct S { friend void f<int>(int, double); }
2484 the DECL_TI_TEMPLATE will be an IDENTIFIER_NODE for `f' and the
2485 DECL_TI_ARGS will be {int}. */
2486 #define DECL_TI_TEMPLATE(NODE) TI_TEMPLATE (DECL_TEMPLATE_INFO (NODE))
2488 /* The template arguments used to obtain this decl from the most
2489 general form of DECL_TI_TEMPLATE. For the example given for
2490 DECL_TI_TEMPLATE, the DECL_TI_ARGS will be {int, double}. These
2491 are always the full set of arguments required to instantiate this
2492 declaration from the most general template specialized here. */
2493 #define DECL_TI_ARGS(NODE) TI_ARGS (DECL_TEMPLATE_INFO (NODE))
2495 /* The TEMPLATE_DECL associated with NODE, a class type. Even if NODE
2496 will be generated from a partial specialization, the TEMPLATE_DECL
2497 referred to here will be the original template. For example,
2500 template <typename T> struct S {};
2501 template <typename T> struct S<T*> {};
2503 the CLASSTPYE_TI_TEMPLATE for S<int*> will be S, not the S<T*>. */
2504 #define CLASSTYPE_TI_TEMPLATE(NODE) TI_TEMPLATE (CLASSTYPE_TEMPLATE_INFO (NODE))
2505 #define CLASSTYPE_TI_ARGS(NODE) TI_ARGS (CLASSTYPE_TEMPLATE_INFO (NODE))
2507 /* For a template instantiation TYPE, returns the TYPE corresponding
2508 to the primary template. Otherwise returns TYPE itself. */
2509 #define CLASSTYPE_PRIMARY_TEMPLATE_TYPE(TYPE) \
2510 ((CLASSTYPE_USE_TEMPLATE ((TYPE)) \
2511 && !CLASSTYPE_TEMPLATE_SPECIALIZATION ((TYPE))) \
2512 ? TREE_TYPE (DECL_TEMPLATE_RESULT (DECL_PRIMARY_TEMPLATE \
2513 (CLASSTYPE_TI_TEMPLATE ((TYPE))))) \
2516 /* Like CLASS_TI_TEMPLATE, but also works for ENUMERAL_TYPEs. */
2517 #define TYPE_TI_TEMPLATE(NODE) \
2518 (TI_TEMPLATE (TYPE_TEMPLATE_INFO (NODE)))
2520 /* Like DECL_TI_ARGS, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2521 #define TYPE_TI_ARGS(NODE) \
2522 (TI_ARGS (TYPE_TEMPLATE_INFO (NODE)))
2524 #define INNERMOST_TEMPLATE_PARMS(NODE) TREE_VALUE (NODE)
2526 /* Nonzero if NODE (a TEMPLATE_DECL) is a member template, in the
2527 sense of [temp.mem]. */
2528 #define DECL_MEMBER_TEMPLATE_P(NODE) \
2529 (DECL_LANG_FLAG_1 (TEMPLATE_DECL_CHECK (NODE)))
2531 /* Nonzero if the NODE corresponds to the template parameters for a
2532 member template, whose inline definition is being processed after
2533 the class definition is complete. */
2534 #define TEMPLATE_PARMS_FOR_INLINE(NODE) TREE_LANG_FLAG_1 (NODE)
2536 /* Determine if a parameter (i.e., a PARM_DECL) is a function
2538 #define FUNCTION_PARAMETER_PACK_P(NODE) \
2539 (DECL_LANG_FLAG_1 (PARM_DECL_CHECK (NODE)))
2541 /* Determines if NODE is an expansion of one or more parameter packs,
2542 e.g., a TYPE_PACK_EXPANSION or EXPR_PACK_EXPANSION. */
2543 #define PACK_EXPANSION_P(NODE) \
2544 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION \
2545 || TREE_CODE (NODE) == EXPR_PACK_EXPANSION)
2547 /* Extracts the type or expression pattern from a TYPE_PACK_EXPANSION or
2548 EXPR_PACK_EXPANSION. */
2549 #define PACK_EXPANSION_PATTERN(NODE) \
2550 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION? TREE_TYPE (NODE) \
2551 : TREE_OPERAND (NODE, 0))
2553 /* Sets the type or expression pattern for a TYPE_PACK_EXPANSION or
2554 EXPR_PACK_EXPANSION. */
2555 #define SET_PACK_EXPANSION_PATTERN(NODE,VALUE) \
2556 if (TREE_CODE (NODE) == TYPE_PACK_EXPANSION) \
2557 TREE_TYPE (NODE) = VALUE; \
2559 TREE_OPERAND (NODE, 0) = VALUE
2561 /* The list of parameter packs used in the PACK_EXPANSION_* node. The
2562 TREE_VALUE of each TREE_LIST contains the parameter packs. */
2563 #define PACK_EXPANSION_PARAMETER_PACKS(NODE) TREE_CHAIN (NODE)
2565 /* Determine if this is an argument pack. */
2566 #define ARGUMENT_PACK_P(NODE) \
2567 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK \
2568 || TREE_CODE (NODE) == NONTYPE_ARGUMENT_PACK)
2570 /* The arguments stored in an argument pack. Arguments are stored in a
2571 TREE_VEC, which may have length zero. */
2572 #define ARGUMENT_PACK_ARGS(NODE) \
2573 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK? TREE_TYPE (NODE) \
2574 : TREE_OPERAND (NODE, 0))
2576 /* Set the arguments stored in an argument pack. VALUE must be a
2578 #define SET_ARGUMENT_PACK_ARGS(NODE,VALUE) \
2579 if (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK) \
2580 TREE_TYPE (NODE) = VALUE; \
2582 TREE_OPERAND (NODE, 0) = VALUE
2584 /* Whether the argument pack is "incomplete", meaning that more
2585 arguments can still be deduced. Incomplete argument packs are only
2586 used when the user has provided an explicit template argument list
2587 for a variadic function template. Some of the explicit template
2588 arguments will be placed into the beginning of the argument pack,
2589 but additional arguments might still be deduced. */
2590 #define ARGUMENT_PACK_INCOMPLETE_P(NODE) \
2591 TREE_LANG_FLAG_0 (ARGUMENT_PACK_ARGS (NODE))
2593 /* When ARGUMENT_PACK_INCOMPLETE_P, stores the explicit template
2594 arguments used to fill this pack. */
2595 #define ARGUMENT_PACK_EXPLICIT_ARGS(NODE) \
2596 TREE_TYPE (ARGUMENT_PACK_ARGS (NODE))
2598 /* In an ARGUMENT_PACK_SELECT, the argument pack from which an
2599 argument will be selected. */
2600 #define ARGUMENT_PACK_SELECT_FROM_PACK(NODE) \
2601 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->argument_pack)
2603 /* In an ARGUMENT_PACK_SELECT, the index of the argument we want to
2605 #define ARGUMENT_PACK_SELECT_INDEX(NODE) \
2606 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->index)
2608 /* In an ARGUMENT_PACK_SELECT, the actual underlying argument that the
2609 ARGUMENT_PACK_SELECT represents. */
2610 #define ARGUMENT_PACK_SELECT_ARG(NODE) \
2611 TREE_VEC_ELT (ARGUMENT_PACK_ARGS (ARGUMENT_PACK_SELECT_FROM_PACK (NODE)), \
2612 ARGUMENT_PACK_SELECT_INDEX (NODE));
2614 /* In a FUNCTION_DECL, the saved language-specific per-function data. */
2615 #define DECL_SAVED_FUNCTION_DATA(NODE) \
2616 (LANG_DECL_FN_CHECK (FUNCTION_DECL_CHECK (NODE)) \
2617 ->u.saved_language_function)
2619 /* Indicates an indirect_expr is for converting a reference. */
2620 #define REFERENCE_REF_P(NODE) \
2621 TREE_LANG_FLAG_0 (INDIRECT_REF_CHECK (NODE))
2623 #define NEW_EXPR_USE_GLOBAL(NODE) \
2624 TREE_LANG_FLAG_0 (NEW_EXPR_CHECK (NODE))
2625 #define DELETE_EXPR_USE_GLOBAL(NODE) \
2626 TREE_LANG_FLAG_0 (DELETE_EXPR_CHECK (NODE))
2627 #define DELETE_EXPR_USE_VEC(NODE) \
2628 TREE_LANG_FLAG_1 (DELETE_EXPR_CHECK (NODE))
2630 /* Indicates that this is a non-dependent COMPOUND_EXPR which will
2631 resolve to a function call. */
2632 #define COMPOUND_EXPR_OVERLOADED(NODE) \
2633 TREE_LANG_FLAG_0 (COMPOUND_EXPR_CHECK (NODE))
2635 /* In a CALL_EXPR appearing in a template, true if Koenig lookup
2636 should be performed at instantiation time. */
2637 #define KOENIG_LOOKUP_P(NODE) TREE_LANG_FLAG_0 (CALL_EXPR_CHECK (NODE))
2639 /* Indicates whether a string literal has been parenthesized. Such
2640 usages are disallowed in certain circumstances. */
2642 #define PAREN_STRING_LITERAL_P(NODE) \
2643 TREE_LANG_FLAG_0 (STRING_CST_CHECK (NODE))
2645 /* Nonzero if this AGGR_INIT_EXPR provides for initialization via a
2646 constructor call, rather than an ordinary function call. */
2647 #define AGGR_INIT_VIA_CTOR_P(NODE) \
2648 TREE_LANG_FLAG_0 (AGGR_INIT_EXPR_CHECK (NODE))
2650 /* Nonzero if expanding this AGGR_INIT_EXPR should first zero-initialize
2652 #define AGGR_INIT_ZERO_FIRST(NODE) \
2653 TREE_LANG_FLAG_2 (AGGR_INIT_EXPR_CHECK (NODE))
2655 /* AGGR_INIT_EXPR accessors. These are equivalent to the CALL_EXPR
2656 accessors, except for AGGR_INIT_EXPR_SLOT (which takes the place of
2657 CALL_EXPR_STATIC_CHAIN). */
2659 #define AGGR_INIT_EXPR_FN(NODE) TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 1)
2660 #define AGGR_INIT_EXPR_SLOT(NODE) \
2661 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 2)
2662 #define AGGR_INIT_EXPR_ARG(NODE, I) \
2663 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), (I) + 3)
2664 #define aggr_init_expr_nargs(NODE) (VL_EXP_OPERAND_LENGTH(NODE) - 3)
2666 /* AGGR_INIT_EXPR_ARGP returns a pointer to the argument vector for NODE.
2667 We can't use &AGGR_INIT_EXPR_ARG (NODE, 0) because that will complain if
2668 the argument count is zero when checking is enabled. Instead, do
2669 the pointer arithmetic to advance past the 3 fixed operands in a
2670 AGGR_INIT_EXPR. That produces a valid pointer to just past the end of
2671 the operand array, even if it's not valid to dereference it. */
2672 #define AGGR_INIT_EXPR_ARGP(NODE) \
2673 (&(TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 0)) + 3)
2675 /* Abstract iterators for AGGR_INIT_EXPRs. */
2677 /* Structure containing iterator state. */
2678 typedef struct GTY (()) aggr_init_expr_arg_iterator_d {
2679 tree t; /* the aggr_init_expr */
2680 int n; /* argument count */
2681 int i; /* next argument index */
2682 } aggr_init_expr_arg_iterator;
2684 /* Initialize the abstract argument list iterator object ITER with the
2685 arguments from AGGR_INIT_EXPR node EXP. */
2687 init_aggr_init_expr_arg_iterator (tree exp,
2688 aggr_init_expr_arg_iterator *iter)
2691 iter->n = aggr_init_expr_nargs (exp);
2695 /* Return the next argument from abstract argument list iterator object ITER,
2696 and advance its state. Return NULL_TREE if there are no more arguments. */
2698 next_aggr_init_expr_arg (aggr_init_expr_arg_iterator *iter)
2701 if (iter->i >= iter->n)
2703 result = AGGR_INIT_EXPR_ARG (iter->t, iter->i);
2708 /* Initialize the abstract argument list iterator object ITER, then advance
2709 past and return the first argument. Useful in for expressions, e.g.
2710 for (arg = first_aggr_init_expr_arg (exp, &iter); arg;
2711 arg = next_aggr_init_expr_arg (&iter)) */
2713 first_aggr_init_expr_arg (tree exp, aggr_init_expr_arg_iterator *iter)
2715 init_aggr_init_expr_arg_iterator (exp, iter);
2716 return next_aggr_init_expr_arg (iter);
2719 /* Test whether there are more arguments in abstract argument list iterator
2720 ITER, without changing its state. */
2722 more_aggr_init_expr_args_p (const aggr_init_expr_arg_iterator *iter)
2724 return (iter->i < iter->n);
2727 /* Iterate through each argument ARG of AGGR_INIT_EXPR CALL, using variable
2728 ITER (of type aggr_init_expr_arg_iterator) to hold the iteration state. */
2729 #define FOR_EACH_AGGR_INIT_EXPR_ARG(arg, iter, call) \
2730 for ((arg) = first_aggr_init_expr_arg ((call), &(iter)); (arg); \
2731 (arg) = next_aggr_init_expr_arg (&(iter)))
2733 /* VEC_INIT_EXPR accessors. */
2734 #define VEC_INIT_EXPR_SLOT(NODE) TREE_OPERAND (NODE, 0)
2735 #define VEC_INIT_EXPR_INIT(NODE) TREE_OPERAND (NODE, 1)
2737 /* The TYPE_MAIN_DECL for a class template type is a TYPE_DECL, not a
2738 TEMPLATE_DECL. This macro determines whether or not a given class
2739 type is really a template type, as opposed to an instantiation or
2740 specialization of one. */
2741 #define CLASSTYPE_IS_TEMPLATE(NODE) \
2742 (CLASSTYPE_TEMPLATE_INFO (NODE) \
2743 && !CLASSTYPE_USE_TEMPLATE (NODE) \
2744 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE)))
2746 /* The name used by the user to name the typename type. Typically,
2747 this is an IDENTIFIER_NODE, and the same as the DECL_NAME on the
2748 corresponding TYPE_DECL. However, this may also be a
2749 TEMPLATE_ID_EXPR if we had something like `typename X::Y<T>'. */
2750 #define TYPENAME_TYPE_FULLNAME(NODE) (TYPENAME_TYPE_CHECK (NODE))->type.values
2752 /* True if a TYPENAME_TYPE was declared as an "enum". */
2753 #define TYPENAME_IS_ENUM_P(NODE) \
2754 (TREE_LANG_FLAG_0 (TYPENAME_TYPE_CHECK (NODE)))
2756 /* True if a TYPENAME_TYPE was declared as a "class", "struct", or
2758 #define TYPENAME_IS_CLASS_P(NODE) \
2759 (TREE_LANG_FLAG_1 (TYPENAME_TYPE_CHECK (NODE)))
2761 /* True if a TYPENAME_TYPE is in the process of being resolved. */
2762 #define TYPENAME_IS_RESOLVING_P(NODE) \
2763 (TREE_LANG_FLAG_2 (TYPENAME_TYPE_CHECK (NODE)))
2765 /* Nonzero in INTEGER_CST means that this int is negative by dint of
2766 using a twos-complement negated operand. */
2767 #define TREE_NEGATED_INT(NODE) TREE_LANG_FLAG_0 (INTEGER_CST_CHECK (NODE))
2771 A class that declares or inherits a virtual function is called a
2772 polymorphic class. */
2773 #define TYPE_POLYMORPHIC_P(NODE) (TREE_LANG_FLAG_2 (NODE))
2775 /* Nonzero if this class has a virtual function table pointer. */
2776 #define TYPE_CONTAINS_VPTR_P(NODE) \
2777 (TYPE_POLYMORPHIC_P (NODE) || CLASSTYPE_VBASECLASSES (NODE))
2779 /* This flag is true of a local VAR_DECL if it was declared in a for
2780 statement, but we are no longer in the scope of the for. */
2781 #define DECL_DEAD_FOR_LOCAL(NODE) DECL_LANG_FLAG_7 (VAR_DECL_CHECK (NODE))
2783 /* This flag is set on a VAR_DECL that is a DECL_DEAD_FOR_LOCAL
2784 if we already emitted a warning about using it. */
2785 #define DECL_ERROR_REPORTED(NODE) DECL_LANG_FLAG_0 (VAR_DECL_CHECK (NODE))
2787 /* Nonzero if NODE is a FUNCTION_DECL (for a function with global
2788 scope) declared in a local scope. */
2789 #define DECL_LOCAL_FUNCTION_P(NODE) \
2790 DECL_LANG_FLAG_0 (FUNCTION_DECL_CHECK (NODE))
2792 /* Nonzero if NODE is a DECL which we know about but which has not
2793 been explicitly declared, such as a built-in function or a friend
2794 declared inside a class. In the latter case DECL_HIDDEN_FRIEND_P
2796 #define DECL_ANTICIPATED(NODE) \
2797 (DECL_LANG_SPECIFIC (DECL_COMMON_CHECK (NODE))->u.base.anticipated_p)
2799 /* Nonzero if NODE is a FUNCTION_DECL which was declared as a friend
2800 within a class but has not been declared in the surrounding scope.
2801 The function is invisible except via argument dependent lookup. */
2802 #define DECL_HIDDEN_FRIEND_P(NODE) \
2803 (LANG_DECL_FN_CHECK (DECL_COMMON_CHECK (NODE))->hidden_friend_p)
2805 /* Nonzero if DECL has been declared threadprivate by
2806 #pragma omp threadprivate. */
2807 #define CP_DECL_THREADPRIVATE_P(DECL) \
2808 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (DECL))->u.base.threadprivate_or_deleted_p)
2810 /* Nonzero if DECL was declared with '= delete'. */
2811 #define DECL_DELETED_FN(DECL) \
2812 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->u.base.threadprivate_or_deleted_p)
2814 /* Nonzero if DECL was declared with '= default'. */
2815 #define DECL_DEFAULTED_FN(DECL) \
2816 (LANG_DECL_FN_CHECK (DECL)->defaulted_p)
2818 /* Record whether a typedef for type `int' was actually `signed int'. */
2819 #define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP)
2821 /* Returns nonzero if DECL has external linkage, as specified by the
2822 language standard. (This predicate may hold even when the
2823 corresponding entity is not actually given external linkage in the
2824 object file; see decl_linkage for details.) */
2825 #define DECL_EXTERNAL_LINKAGE_P(DECL) \
2826 (decl_linkage (DECL) == lk_external)
2828 /* Keep these codes in ascending code order. */
2830 #define INTEGRAL_CODE_P(CODE) \
2831 ((CODE) == ENUMERAL_TYPE \
2832 || (CODE) == BOOLEAN_TYPE \
2833 || (CODE) == INTEGER_TYPE)
2835 /* [basic.fundamental]
2837 Types bool, char, wchar_t, and the signed and unsigned integer types
2838 are collectively called integral types.
2840 Note that INTEGRAL_TYPE_P, as defined in tree.h, allows enumeration
2841 types as well, which is incorrect in C++. Keep these checks in
2842 ascending code order. */
2843 #define CP_INTEGRAL_TYPE_P(TYPE) \
2844 (TREE_CODE (TYPE) == BOOLEAN_TYPE \
2845 || TREE_CODE (TYPE) == INTEGER_TYPE)
2847 /* Returns true if TYPE is an integral or enumeration name. Keep
2848 these checks in ascending code order. */
2849 #define INTEGRAL_OR_ENUMERATION_TYPE_P(TYPE) \
2850 (TREE_CODE (TYPE) == ENUMERAL_TYPE || CP_INTEGRAL_TYPE_P (TYPE))
2852 /* Returns true if TYPE is an integral or unscoped enumeration type. */
2853 #define INTEGRAL_OR_UNSCOPED_ENUMERATION_TYPE_P(TYPE) \
2854 (UNSCOPED_ENUM_P (TYPE) || CP_INTEGRAL_TYPE_P (TYPE))
2856 /* True if the class type TYPE is a literal type. */
2857 #define CLASSTYPE_LITERAL_P(TYPE) \
2858 (LANG_TYPE_CLASS_CHECK (TYPE)->is_literal)
2860 /* [basic.fundamental]
2862 Integral and floating types are collectively called arithmetic
2865 As a GNU extension, we also accept complex types.
2867 Keep these checks in ascending code order. */
2868 #define ARITHMETIC_TYPE_P(TYPE) \
2869 (CP_INTEGRAL_TYPE_P (TYPE) \
2870 || TREE_CODE (TYPE) == REAL_TYPE \
2871 || TREE_CODE (TYPE) == COMPLEX_TYPE)
2875 Arithmetic types, enumeration types, pointer types, and
2876 pointer-to-member types, are collectively called scalar types.
2878 Keep these checks in ascending code order. */
2879 #define SCALAR_TYPE_P(TYPE) \
2880 (TYPE_PTRMEM_P (TYPE) \
2881 || TREE_CODE (TYPE) == ENUMERAL_TYPE \
2882 || ARITHMETIC_TYPE_P (TYPE) \
2883 || TYPE_PTR_P (TYPE) \
2884 || TYPE_PTRMEMFUNC_P (TYPE))
2886 /* Determines whether this type is a C++0x scoped enumeration
2887 type. Scoped enumerations types are introduced via "enum class" or
2888 "enum struct", e.g.,
2894 Scoped enumeration types are different from normal (unscoped)
2895 enumeration types in several ways:
2897 - The enumerators of a scoped enumeration type are only available
2898 within the scope of the enumeration type and not in the
2899 enclosing scope. For example, the Red color can be referred to
2900 with "Color::Red" but not "Red".
2902 - Scoped enumerators and enumerations do not implicitly convert
2903 to integers or 'bool'.
2905 - The underlying type of the enum is well-defined. */
2906 #define SCOPED_ENUM_P(TYPE) \
2907 (TREE_CODE (TYPE) == ENUMERAL_TYPE && TYPE_LANG_FLAG_5 (TYPE))
2909 /* Determine whether this is an unscoped enumeration type. */
2910 #define UNSCOPED_ENUM_P(TYPE) \
2911 (TREE_CODE (TYPE) == ENUMERAL_TYPE && !TYPE_LANG_FLAG_5 (TYPE))
2913 /* Set the flag indicating whether an ENUMERAL_TYPE is a C++0x scoped
2914 enumeration type (1) or a normal (unscoped) enumeration type
2916 #define SET_SCOPED_ENUM_P(TYPE, VAL) \
2917 (TYPE_LANG_FLAG_5 (ENUMERAL_TYPE_CHECK (TYPE)) = (VAL))
2919 /* Returns the underlying type of the given enumeration type. The
2920 underlying type is determined in different ways, depending on the
2921 properties of the enum:
2923 - In C++0x, the underlying type can be explicitly specified, e.g.,
2925 enum E1 : char { ... } // underlying type is char
2927 - In a C++0x scoped enumeration, the underlying type is int
2928 unless otherwises specified:
2930 enum class E2 { ... } // underlying type is int
2932 - Otherwise, the underlying type is determined based on the
2933 values of the enumerators. In this case, the
2934 ENUM_UNDERLYING_TYPE will not be set until after the definition
2935 of the enumeration is completed by finish_enum. */
2936 #define ENUM_UNDERLYING_TYPE(TYPE) \
2937 TREE_TYPE (ENUMERAL_TYPE_CHECK (TYPE))
2941 An aggregate is an array or a class with no user-declared
2942 constructors, no private or protected non-static data members, no
2943 base classes, and no virtual functions.
2945 As an extension, we also treat vectors as aggregates. Keep these
2946 checks in ascending code order. */
2947 #define CP_AGGREGATE_TYPE_P(TYPE) \
2948 (TREE_CODE (TYPE) == VECTOR_TYPE \
2949 ||TREE_CODE (TYPE) == ARRAY_TYPE \
2950 || (CLASS_TYPE_P (TYPE) && !CLASSTYPE_NON_AGGREGATE (TYPE)))
2952 /* Nonzero for a class type means that the class type has a
2953 user-declared constructor. */
2954 #define TYPE_HAS_USER_CONSTRUCTOR(NODE) (TYPE_LANG_FLAG_1 (NODE))
2956 /* When appearing in an INDIRECT_REF, it means that the tree structure
2957 underneath is actually a call to a constructor. This is needed
2958 when the constructor must initialize local storage (which can
2959 be automatically destroyed), rather than allowing it to allocate
2960 space from the heap.
2962 When appearing in a SAVE_EXPR, it means that underneath
2963 is a call to a constructor.
2965 When appearing in a CONSTRUCTOR, the expression is a
2968 When appearing in a FIELD_DECL, it means that this field
2969 has been duly initialized in its constructor. */
2970 #define TREE_HAS_CONSTRUCTOR(NODE) (TREE_LANG_FLAG_4 (NODE))
2972 /* True if NODE is a brace-enclosed initializer. */
2973 #define BRACE_ENCLOSED_INITIALIZER_P(NODE) \
2974 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_TYPE (NODE) == init_list_type_node)
2976 /* True if NODE is a compound-literal, i.e., a brace-enclosed
2977 initializer cast to a particular type. */
2978 #define COMPOUND_LITERAL_P(NODE) \
2979 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_HAS_CONSTRUCTOR (NODE))
2981 #define EMPTY_CONSTRUCTOR_P(NODE) (TREE_CODE (NODE) == CONSTRUCTOR \
2982 && VEC_empty (constructor_elt, \
2983 CONSTRUCTOR_ELTS (NODE)) \
2984 && !TREE_HAS_CONSTRUCTOR (NODE))
2986 /* True if NODE is a init-list used as a direct-initializer, i.e.
2987 B b{1,2}, not B b({1,2}) or B b = {1,2}. */
2988 #define CONSTRUCTOR_IS_DIRECT_INIT(NODE) (TREE_LANG_FLAG_0 (CONSTRUCTOR_CHECK (NODE)))
2990 /* Nonzero means that an object of this type can not be initialized using
2991 an initializer list. */
2992 #define CLASSTYPE_NON_AGGREGATE(NODE) \
2993 (LANG_TYPE_CLASS_CHECK (NODE)->non_aggregate)
2994 #define TYPE_NON_AGGREGATE_CLASS(NODE) \
2995 (CLASS_TYPE_P (NODE) && CLASSTYPE_NON_AGGREGATE (NODE))
2997 /* Nonzero if there is a user-defined X::op=(x&) for this class. */
2998 #define TYPE_HAS_COMPLEX_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_assign_ref)
3000 /* Nonzero if there is a user-defined X::X(x&) for this class. */
3001 #define TYPE_HAS_COMPLEX_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_init_ref)
3003 /* Nonzero if there is a user-defined default constructor for this class. */
3004 #define TYPE_HAS_COMPLEX_DFLT(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_dflt)
3006 /* Nonzero if TYPE has a trivial destructor. From [class.dtor]:
3008 A destructor is trivial if it is an implicitly declared
3011 - all of the direct base classes of its class have trivial
3014 - for all of the non-static data members of its class that are
3015 of class type (or array thereof), each such class has a
3016 trivial destructor. */
3017 #define TYPE_HAS_TRIVIAL_DESTRUCTOR(NODE) \
3018 (!TYPE_HAS_NONTRIVIAL_DESTRUCTOR (NODE))
3020 /* Nonzero for _TYPE node means that this type does not have a trivial
3021 destructor. Therefore, destroying an object of this type will
3022 involve a call to a destructor. This can apply to objects of
3023 ARRAY_TYPE is the type of the elements needs a destructor. */
3024 #define TYPE_HAS_NONTRIVIAL_DESTRUCTOR(NODE) \
3025 (TYPE_LANG_FLAG_4 (NODE))
3027 /* Nonzero for class type means that the default constructor is trivial. */
3028 #define TYPE_HAS_TRIVIAL_DFLT(NODE) \
3029 (TYPE_HAS_DEFAULT_CONSTRUCTOR (NODE) && ! TYPE_HAS_COMPLEX_DFLT (NODE))
3031 /* Nonzero for class type means that copy initialization of this type can use
3033 #define TYPE_HAS_TRIVIAL_INIT_REF(NODE) \
3034 (TYPE_HAS_INIT_REF (NODE) && ! TYPE_HAS_COMPLEX_INIT_REF (NODE))
3036 /* Nonzero for class type means that assignment of this type can use
3038 #define TYPE_HAS_TRIVIAL_ASSIGN_REF(NODE) \
3039 (TYPE_HAS_ASSIGN_REF (NODE) && ! TYPE_HAS_COMPLEX_ASSIGN_REF (NODE))
3041 /* Returns true if NODE is a pointer-to-data-member. */
3042 #define TYPE_PTRMEM_P(NODE) \
3043 (TREE_CODE (NODE) == OFFSET_TYPE)
3044 /* Returns true if NODE is a pointer. */
3045 #define TYPE_PTR_P(NODE) \
3046 (TREE_CODE (NODE) == POINTER_TYPE)
3048 /* Returns true if NODE is an object type:
3052 An object type is a (possibly cv-qualified) type that is not a
3053 function type, not a reference type, and not a void type.
3055 Keep these checks in ascending order, for speed. */
3056 #define TYPE_OBJ_P(NODE) \
3057 (TREE_CODE (NODE) != REFERENCE_TYPE \
3058 && TREE_CODE (NODE) != VOID_TYPE \
3059 && TREE_CODE (NODE) != FUNCTION_TYPE \
3060 && TREE_CODE (NODE) != METHOD_TYPE)
3062 /* Returns true if NODE is a pointer to an object. Keep these checks
3063 in ascending tree code order. */
3064 #define TYPE_PTROB_P(NODE) \
3065 (TYPE_PTR_P (NODE) && TYPE_OBJ_P (TREE_TYPE (NODE)))
3067 /* Returns true if NODE is a reference to an object. Keep these checks
3068 in ascending tree code order. */
3069 #define TYPE_REF_OBJ_P(NODE) \
3070 (TREE_CODE (NODE) == REFERENCE_TYPE && TYPE_OBJ_P (TREE_TYPE (NODE)))
3072 /* True if reference type NODE is an rvalue reference */
3073 #define TYPE_REF_IS_RVALUE(NODE) \
3074 TREE_LANG_FLAG_0 (REFERENCE_TYPE_CHECK (NODE))
3076 /* Returns true if NODE is a pointer to an object, or a pointer to
3077 void. Keep these checks in ascending tree code order. */
3078 #define TYPE_PTROBV_P(NODE) \
3079 (TYPE_PTR_P (NODE) \
3080 && !(TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE \
3081 || TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE))
3083 /* Returns true if NODE is a pointer to function. */
3084 #define TYPE_PTRFN_P(NODE) \
3085 (TREE_CODE (NODE) == POINTER_TYPE \
3086 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
3088 /* Returns true if NODE is a reference to function. */
3089 #define TYPE_REFFN_P(NODE) \
3090 (TREE_CODE (NODE) == REFERENCE_TYPE \
3091 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
3093 /* Nonzero for _TYPE node means that this type is a pointer to member
3095 #define TYPE_PTRMEMFUNC_P(NODE) \
3096 (TREE_CODE (NODE) == RECORD_TYPE \
3097 && TYPE_LANG_SPECIFIC (NODE) \
3098 && TYPE_PTRMEMFUNC_FLAG (NODE))
3100 #define TYPE_PTRMEMFUNC_FLAG(NODE) \
3101 (LANG_TYPE_CLASS_CHECK (NODE)->ptrmemfunc_flag)
3103 /* Returns true if NODE is a pointer-to-member. */
3104 #define TYPE_PTR_TO_MEMBER_P(NODE) \
3105 (TYPE_PTRMEM_P (NODE) || TYPE_PTRMEMFUNC_P (NODE))
3107 /* Indicates when overload resolution may resolve to a pointer to
3108 member function. [expr.unary.op]/3 */
3109 #define PTRMEM_OK_P(NODE) \
3110 TREE_LANG_FLAG_0 (TREE_CHECK2 ((NODE), ADDR_EXPR, OFFSET_REF))
3112 /* Get the POINTER_TYPE to the METHOD_TYPE associated with this
3113 pointer to member function. TYPE_PTRMEMFUNC_P _must_ be true,
3114 before using this macro. */
3115 #define TYPE_PTRMEMFUNC_FN_TYPE(NODE) \
3116 (TREE_TYPE (TYPE_FIELDS (NODE)))
3118 /* Returns `A' for a type like `int (A::*)(double)' */
3119 #define TYPE_PTRMEMFUNC_OBJECT_TYPE(NODE) \
3120 TYPE_METHOD_BASETYPE (TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
3122 /* These are use to manipulate the canonical RECORD_TYPE from the
3123 hashed POINTER_TYPE, and can only be used on the POINTER_TYPE. */
3124 #define TYPE_GET_PTRMEMFUNC_TYPE(NODE) \
3125 (TYPE_LANG_SPECIFIC (NODE) ? LANG_TYPE_PTRMEM_CHECK (NODE)->record : NULL)
3126 #define TYPE_SET_PTRMEMFUNC_TYPE(NODE, VALUE) \
3128 if (TYPE_LANG_SPECIFIC (NODE) == NULL) \
3130 TYPE_LANG_SPECIFIC (NODE) = GGC_CNEWVAR \
3131 (struct lang_type, sizeof (struct lang_type_ptrmem)); \
3132 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.h.is_lang_type_class = 0; \
3134 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.record = (VALUE); \
3137 /* For a pointer-to-member type of the form `T X::*', this is `X'.
3138 For a type like `void (X::*)() const', this type is `X', not `const
3139 X'. To get at the `const X' you have to look at the
3140 TYPE_PTRMEM_POINTED_TO_TYPE; there, the first parameter will have
3142 #define TYPE_PTRMEM_CLASS_TYPE(NODE) \
3143 (TYPE_PTRMEM_P (NODE) \
3144 ? TYPE_OFFSET_BASETYPE (NODE) \
3145 : TYPE_PTRMEMFUNC_OBJECT_TYPE (NODE))
3147 /* For a pointer-to-member type of the form `T X::*', this is `T'. */
3148 #define TYPE_PTRMEM_POINTED_TO_TYPE(NODE) \
3149 (TYPE_PTRMEM_P (NODE) \
3150 ? TREE_TYPE (NODE) \
3151 : TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
3153 /* For a pointer-to-member constant `X::Y' this is the RECORD_TYPE for
3155 #define PTRMEM_CST_CLASS(NODE) \
3156 TYPE_PTRMEM_CLASS_TYPE (TREE_TYPE (PTRMEM_CST_CHECK (NODE)))
3158 /* For a pointer-to-member constant `X::Y' this is the _DECL for
3160 #define PTRMEM_CST_MEMBER(NODE) (((ptrmem_cst_t)PTRMEM_CST_CHECK (NODE))->member)
3162 /* The expression in question for a TYPEOF_TYPE. */
3163 #define TYPEOF_TYPE_EXPR(NODE) (TYPEOF_TYPE_CHECK (NODE))->type.values
3165 /* The expression in question for a DECLTYPE_TYPE. */
3166 #define DECLTYPE_TYPE_EXPR(NODE) (DECLTYPE_TYPE_CHECK (NODE))->type.values
3168 /* Whether the DECLTYPE_TYPE_EXPR of NODE was originally parsed as an
3169 id-expression or a member-access expression. When false, it was
3170 parsed as a full expression. */
3171 #define DECLTYPE_TYPE_ID_EXPR_OR_MEMBER_ACCESS_P(NODE) \
3172 (DECLTYPE_TYPE_CHECK (NODE))->type.string_flag
3174 /* These flags indicate that we want different semantics from normal
3175 decltype: lambda capture just drops references, lambda return also does
3177 #define DECLTYPE_FOR_LAMBDA_CAPTURE(NODE) \
3178 TREE_LANG_FLAG_0 (DECLTYPE_TYPE_CHECK (NODE))
3179 #define DECLTYPE_FOR_LAMBDA_RETURN(NODE) \
3180 TREE_LANG_FLAG_1 (DECLTYPE_TYPE_CHECK (NODE))
3182 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `extern' was
3183 specified in its declaration. This can also be set for an
3184 erroneously declared PARM_DECL. */
3185 #define DECL_THIS_EXTERN(NODE) \
3186 DECL_LANG_FLAG_2 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
3188 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `static' was
3189 specified in its declaration. This can also be set for an
3190 erroneously declared PARM_DECL. */
3191 #define DECL_THIS_STATIC(NODE) \
3192 DECL_LANG_FLAG_6 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
3194 /* Nonzero for FIELD_DECL node means that this field is a base class
3195 of the parent object, as opposed to a member field. */
3196 #define DECL_FIELD_IS_BASE(NODE) \
3197 DECL_LANG_FLAG_6 (FIELD_DECL_CHECK (NODE))
3199 /* Nonzero if TYPE is an anonymous union or struct type. We have to use a
3200 flag for this because "A union for which objects or pointers are
3201 declared is not an anonymous union" [class.union]. */
3202 #define ANON_AGGR_TYPE_P(NODE) \
3203 (CLASS_TYPE_P (NODE) && LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr)
3204 #define SET_ANON_AGGR_TYPE_P(NODE) \
3205 (LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr = 1)
3207 /* Nonzero if TYPE is an anonymous union type. */
3208 #define ANON_UNION_TYPE_P(NODE) \
3209 (TREE_CODE (NODE) == UNION_TYPE && ANON_AGGR_TYPE_P (NODE))
3211 #define UNKNOWN_TYPE LANG_TYPE
3213 /* Define fields and accessors for nodes representing declared names. */
3215 #define TYPE_WAS_ANONYMOUS(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->was_anonymous)
3217 /* C++: all of these are overloaded! These apply only to TYPE_DECLs. */
3219 /* The format of each node in the DECL_FRIENDLIST is as follows:
3221 The TREE_PURPOSE will be the name of a function, i.e., an
3222 IDENTIFIER_NODE. The TREE_VALUE will be itself a TREE_LIST, whose
3223 TREE_VALUEs are friends with the given name. */
3224 #define DECL_FRIENDLIST(NODE) (DECL_INITIAL (NODE))
3225 #define FRIEND_NAME(LIST) (TREE_PURPOSE (LIST))
3226 #define FRIEND_DECLS(LIST) (TREE_VALUE (LIST))
3228 /* The DECL_ACCESS, if non-NULL, is a TREE_LIST. The TREE_PURPOSE of
3229 each node is a type; the TREE_VALUE is the access granted for this
3230 DECL in that type. The DECL_ACCESS is set by access declarations.
3231 For example, if a member that would normally be public in a
3232 derived class is made protected, then the derived class and the
3233 protected_access_node will appear in the DECL_ACCESS for the node. */
3234 #define DECL_ACCESS(NODE) (LANG_DECL_U2_CHECK (NODE, 0)->access)
3236 /* Nonzero if the FUNCTION_DECL is a global constructor. */
3237 #define DECL_GLOBAL_CTOR_P(NODE) \
3238 (LANG_DECL_FN_CHECK (NODE)->global_ctor_p)
3240 /* Nonzero if the FUNCTION_DECL is a global destructor. */
3241 #define DECL_GLOBAL_DTOR_P(NODE) \
3242 (LANG_DECL_FN_CHECK (NODE)->global_dtor_p)
3244 /* Accessor macros for C++ template decl nodes. */
3246 /* The DECL_TEMPLATE_PARMS are a list. The TREE_PURPOSE of each node
3247 is a INT_CST whose TREE_INT_CST_LOW indicates the level of the
3248 template parameters, with 1 being the outermost set of template
3249 parameters. The TREE_VALUE is a vector, whose elements are the
3250 template parameters at each level. Each element in the vector is a
3251 TREE_LIST, whose TREE_VALUE is a PARM_DECL (if the parameter is a
3252 non-type parameter), or a TYPE_DECL (if the parameter is a type
3253 parameter). The TREE_PURPOSE is the default value, if any. The
3254 TEMPLATE_PARM_INDEX for the parameter is available as the
3255 DECL_INITIAL (for a PARM_DECL) or as the TREE_TYPE (for a
3257 #define DECL_TEMPLATE_PARMS(NODE) DECL_NON_COMMON_CHECK (NODE)->decl_non_common.arguments
3258 #define DECL_INNERMOST_TEMPLATE_PARMS(NODE) \
3259 INNERMOST_TEMPLATE_PARMS (DECL_TEMPLATE_PARMS (NODE))
3260 #define DECL_NTPARMS(NODE) \
3261 TREE_VEC_LENGTH (DECL_INNERMOST_TEMPLATE_PARMS (NODE))
3262 /* For function, method, class-data templates. */
3263 #define DECL_TEMPLATE_RESULT(NODE) DECL_RESULT_FLD (NODE)
3264 /* For a function template at namespace scope, DECL_TEMPLATE_INSTANTIATIONS
3265 lists all instantiations and specializations of the function so that
3266 tsubst_friend_function can reassign them to another template if we find
3267 that the namespace-scope template is really a partial instantiation of a
3270 For a class template the DECL_TEMPLATE_INSTANTIATIONS lists holds
3271 all instantiations and specializations of the class type, including
3272 partial instantiations and partial specializations, so that if we
3273 explicitly specialize a partial instantiation we can walk the list
3274 in maybe_process_partial_specialization and reassign them or complain
3277 In both cases, the TREE_PURPOSE of each node contains the arguments
3278 used; the TREE_VALUE contains the generated variable. The template
3279 arguments are always complete. For example, given:
3281 template <class T> struct S1 {
3282 template <class U> struct S2 {};
3283 template <class U> struct S2<U*> {};
3286 the record for the partial specialization will contain, as its
3287 argument list, { {T}, {U*} }, and will be on the
3288 DECL_TEMPLATE_INSTANTIATIONS list for `template <class T> template
3289 <class U> struct S1<T>::S2'.
3291 This list is not used for other templates. */
3292 #define DECL_TEMPLATE_INSTANTIATIONS(NODE) DECL_VINDEX (NODE)
3293 /* For a class template, this list contains the partial
3294 specializations of this template. (Full specializations are not
3295 recorded on this list.) The TREE_PURPOSE holds the arguments used
3296 in the partial specialization (e.g., for `template <class T> struct
3297 S<T*, int>' this will be `T*'.) The arguments will also include
3298 any outer template arguments. The TREE_VALUE holds the innermost
3299 template parameters for the specialization (e.g., `T' in the
3300 example above.) The TREE_TYPE is the _TYPE node for the partial
3303 This list is not used for other templates. */
3304 #define DECL_TEMPLATE_SPECIALIZATIONS(NODE) DECL_SIZE (NODE)
3306 /* Nonzero for a DECL which is actually a template parameter. Keep
3307 these checks in ascending tree code order. */
3308 #define DECL_TEMPLATE_PARM_P(NODE) \
3309 (DECL_LANG_FLAG_0 (NODE) \
3310 && (TREE_CODE (NODE) == CONST_DECL \
3311 || TREE_CODE (NODE) == PARM_DECL \
3312 || TREE_CODE (NODE) == TYPE_DECL \
3313 || TREE_CODE (NODE) == TEMPLATE_DECL))
3315 /* Mark NODE as a template parameter. */
3316 #define SET_DECL_TEMPLATE_PARM_P(NODE) \
3317 (DECL_LANG_FLAG_0 (NODE) = 1)
3319 /* Nonzero if NODE is a template template parameter. */
3320 #define DECL_TEMPLATE_TEMPLATE_PARM_P(NODE) \
3321 (TREE_CODE (NODE) == TEMPLATE_DECL && DECL_TEMPLATE_PARM_P (NODE))
3323 /* Nonzero if NODE is a TEMPLATE_DECL representing an
3324 UNBOUND_CLASS_TEMPLATE tree node. */
3325 #define DECL_UNBOUND_CLASS_TEMPLATE_P(NODE) \
3326 (TREE_CODE (NODE) == TEMPLATE_DECL && !DECL_TEMPLATE_RESULT (NODE))
3328 #define DECL_FUNCTION_TEMPLATE_P(NODE) \
3329 (TREE_CODE (NODE) == TEMPLATE_DECL \
3330 && !DECL_UNBOUND_CLASS_TEMPLATE_P (NODE) \
3331 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == FUNCTION_DECL)
3333 /* Nonzero for a DECL that represents a template class. */
3334 #define DECL_CLASS_TEMPLATE_P(NODE) \
3335 (TREE_CODE (NODE) == TEMPLATE_DECL \
3336 && DECL_TEMPLATE_RESULT (NODE) != NULL_TREE \
3337 && DECL_IMPLICIT_TYPEDEF_P (DECL_TEMPLATE_RESULT (NODE)))
3339 /* Nonzero if NODE which declares a type. */
3340 #define DECL_DECLARES_TYPE_P(NODE) \
3341 (TREE_CODE (NODE) == TYPE_DECL || DECL_CLASS_TEMPLATE_P (NODE))
3343 /* Nonzero if NODE declares a function. */
3344 #define DECL_DECLARES_FUNCTION_P(NODE) \
3345 (TREE_CODE (NODE) == FUNCTION_DECL || DECL_FUNCTION_TEMPLATE_P (NODE))
3347 /* Nonzero if NODE is the typedef implicitly generated for a type when
3348 the type is declared. In C++, `struct S {};' is roughly
3349 equivalent to `struct S {}; typedef struct S S;' in C.
3350 DECL_IMPLICIT_TYPEDEF_P will hold for the typedef indicated in this
3351 example. In C++, there is a second implicit typedef for each
3352 class, in the scope of `S' itself, so that you can say `S::S'.
3353 DECL_SELF_REFERENCE_P will hold for that second typedef. */
3354 #define DECL_IMPLICIT_TYPEDEF_P(NODE) \
3355 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_2 (NODE))
3356 #define SET_DECL_IMPLICIT_TYPEDEF_P(NODE) \
3357 (DECL_LANG_FLAG_2 (NODE) = 1)
3358 #define DECL_SELF_REFERENCE_P(NODE) \
3359 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_4 (NODE))
3360 #define SET_DECL_SELF_REFERENCE_P(NODE) \
3361 (DECL_LANG_FLAG_4 (NODE) = 1)
3363 /* A `primary' template is one that has its own template header. A
3364 member function of a class template is a template, but not primary.
3365 A member template is primary. Friend templates are primary, too. */
3367 /* Returns the primary template corresponding to these parameters. */
3368 #define DECL_PRIMARY_TEMPLATE(NODE) \
3369 (TREE_TYPE (DECL_INNERMOST_TEMPLATE_PARMS (NODE)))
3371 /* Returns nonzero if NODE is a primary template. */
3372 #define PRIMARY_TEMPLATE_P(NODE) (DECL_PRIMARY_TEMPLATE (NODE) == (NODE))
3374 /* Nonzero iff NODE is a specialization of a template. The value
3375 indicates the type of specializations:
3377 1=implicit instantiation
3379 2=partial or explicit specialization, e.g.:
3381 template <> int min<int> (int, int),
3383 3=explicit instantiation, e.g.:
3385 template int min<int> (int, int);
3387 Note that NODE will be marked as a specialization even if the
3388 template it is instantiating is not a primary template. For
3391 template <typename T> struct O {
3396 both O<int>::f and O<int>::I will be marked as instantiations.
3398 If DECL_USE_TEMPLATE is nonzero, then DECL_TEMPLATE_INFO will also
3400 #define DECL_USE_TEMPLATE(NODE) (DECL_LANG_SPECIFIC (NODE)->u.base.use_template)
3402 /* Like DECL_USE_TEMPLATE, but for class types. */
3403 #define CLASSTYPE_USE_TEMPLATE(NODE) \
3404 (LANG_TYPE_CLASS_CHECK (NODE)->use_template)
3406 /* True if NODE is a specialization of a primary template. */
3407 #define CLASSTYPE_SPECIALIZATION_OF_PRIMARY_TEMPLATE_P(NODE) \
3408 (CLASS_TYPE_P (NODE) \
3409 && CLASSTYPE_USE_TEMPLATE (NODE) \
3410 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE)))
3412 #define DECL_TEMPLATE_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) & 1)
3413 #define CLASSTYPE_TEMPLATE_INSTANTIATION(NODE) \
3414 (CLASSTYPE_USE_TEMPLATE (NODE) & 1)
3416 #define DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) == 2)
3417 #define SET_DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) = 2)
3419 /* Returns true for an explicit or partial specialization of a class
3421 #define CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
3422 (CLASSTYPE_USE_TEMPLATE (NODE) == 2)
3423 #define SET_CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
3424 (CLASSTYPE_USE_TEMPLATE (NODE) = 2)
3426 #define DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 1)
3427 #define SET_DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 1)
3428 #define CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
3429 (CLASSTYPE_USE_TEMPLATE (NODE) == 1)
3430 #define SET_CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
3431 (CLASSTYPE_USE_TEMPLATE (NODE) = 1)
3433 #define DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 3)
3434 #define SET_DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 3)
3435 #define CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
3436 (CLASSTYPE_USE_TEMPLATE (NODE) == 3)
3437 #define SET_CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
3438 (CLASSTYPE_USE_TEMPLATE (NODE) = 3)
3440 /* Nonzero if DECL is a friend function which is an instantiation
3441 from the point of view of the compiler, but not from the point of
3442 view of the language. For example given:
3443 template <class T> struct S { friend void f(T) {}; };
3444 the declaration of `void f(int)' generated when S<int> is
3445 instantiated will not be a DECL_TEMPLATE_INSTANTIATION, but will be
3446 a DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION. */
3447 #define DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION(DECL) \
3448 (DECL_TEMPLATE_INFO (DECL) && !DECL_USE_TEMPLATE (DECL))
3450 /* Nonzero iff we are currently processing a declaration for an
3451 entity with its own template parameter list, and which is not a
3452 full specialization. */
3453 #define PROCESSING_REAL_TEMPLATE_DECL_P() \
3454 (processing_template_decl > template_class_depth (current_scope ()))
3456 /* Nonzero if this VAR_DECL or FUNCTION_DECL has already been
3457 instantiated, i.e. its definition has been generated from the
3458 pattern given in the template. */
3459 #define DECL_TEMPLATE_INSTANTIATED(NODE) \
3460 DECL_LANG_FLAG_1 (VAR_OR_FUNCTION_DECL_CHECK (NODE))
3462 /* We know what we're doing with this decl now. */
3463 #define DECL_INTERFACE_KNOWN(NODE) DECL_LANG_FLAG_5 (NODE)
3465 /* DECL_EXTERNAL must be set on a decl until the decl is actually emitted,
3466 so that assemble_external will work properly. So we have this flag to
3467 tell us whether the decl is really not external.
3469 This flag does not indicate whether or not the decl is defined in the
3470 current translation unit; it indicates whether or not we should emit the
3471 decl at the end of compilation if it is defined and needed. */
3472 #define DECL_NOT_REALLY_EXTERN(NODE) \
3473 (DECL_LANG_SPECIFIC (NODE)->u.base.not_really_extern)
3475 #define DECL_REALLY_EXTERN(NODE) \
3476 (DECL_EXTERNAL (NODE) && ! DECL_NOT_REALLY_EXTERN (NODE))
3478 /* A thunk is a stub function.
3480 A thunk is an alternate entry point for an ordinary FUNCTION_DECL.
3481 The address of the ordinary FUNCTION_DECL is given by the
3482 DECL_INITIAL, which is always an ADDR_EXPR whose operand is a
3483 FUNCTION_DECL. The job of the thunk is to either adjust the this
3484 pointer before transferring control to the FUNCTION_DECL, or call
3485 FUNCTION_DECL and then adjust the result value. Note, the result
3486 pointer adjusting thunk must perform a call to the thunked
3487 function, (or be implemented via passing some invisible parameter
3488 to the thunked function, which is modified to perform the
3489 adjustment just before returning).
3491 A thunk may perform either, or both, of the following operations:
3493 o Adjust the this or result pointer by a constant offset.
3494 o Adjust the this or result pointer by looking up a vcall or vbase offset
3497 A this pointer adjusting thunk converts from a base to a derived
3498 class, and hence adds the offsets. A result pointer adjusting thunk
3499 converts from a derived class to a base, and hence subtracts the
3500 offsets. If both operations are performed, then the constant
3501 adjustment is performed first for this pointer adjustment and last
3502 for the result pointer adjustment.
3504 The constant adjustment is given by THUNK_FIXED_OFFSET. If the
3505 vcall or vbase offset is required, THUNK_VIRTUAL_OFFSET is
3506 used. For this pointer adjusting thunks, it is the vcall offset
3507 into the vtable. For result pointer adjusting thunks it is the
3508 binfo of the virtual base to convert to. Use that binfo's vbase
3511 It is possible to have equivalent covariant thunks. These are
3512 distinct virtual covariant thunks whose vbase offsets happen to
3513 have the same value. THUNK_ALIAS is used to pick one as the
3514 canonical thunk, which will get all the this pointer adjusting
3515 thunks attached to it. */
3517 /* An integer indicating how many bytes should be subtracted from the
3518 this or result pointer when this function is called. */
3519 #define THUNK_FIXED_OFFSET(DECL) \
3520 (DECL_LANG_SPECIFIC (THUNK_FUNCTION_CHECK (DECL))->u.fn.u5.fixed_offset)
3522 /* A tree indicating how to perform the virtual adjustment. For a this
3523 adjusting thunk it is the number of bytes to be added to the vtable
3524 to find the vcall offset. For a result adjusting thunk, it is the
3525 binfo of the relevant virtual base. If NULL, then there is no
3526 virtual adjust. (The vptr is always located at offset zero from
3527 the this or result pointer.) (If the covariant type is within the
3528 class hierarchy being laid out, the vbase index is not yet known
3529 at the point we need to create the thunks, hence the need to use
3532 #define THUNK_VIRTUAL_OFFSET(DECL) \
3533 (LANG_DECL_U2_CHECK (FUNCTION_DECL_CHECK (DECL), 0)->access)
3535 /* A thunk which is equivalent to another thunk. */
3536 #define THUNK_ALIAS(DECL) \
3537 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->u.min.template_info)
3539 /* For thunk NODE, this is the FUNCTION_DECL thunked to. It is
3540 possible for the target to be a thunk too. */
3541 #define THUNK_TARGET(NODE) \
3542 (LANG_DECL_FN_CHECK (NODE)->befriending_classes)
3544 /* True for a SCOPE_REF iff the "template" keyword was used to
3545 indicate that the qualified name denotes a template. */
3546 #define QUALIFIED_NAME_IS_TEMPLATE(NODE) \
3547 (TREE_LANG_FLAG_0 (SCOPE_REF_CHECK (NODE)))
3549 /* True for an OMP_ATOMIC that has dependent parameters. These are stored
3550 as an expr in operand 1, and integer_zero_node in operand 0. */
3551 #define OMP_ATOMIC_DEPENDENT_P(NODE) \
3552 (TREE_CODE (TREE_OPERAND (OMP_ATOMIC_CHECK (NODE), 0)) == INTEGER_CST)
3554 /* Used while gimplifying continue statements bound to OMP_FOR nodes. */
3555 #define OMP_FOR_GIMPLIFYING_P(NODE) \
3556 (TREE_LANG_FLAG_0 (OMP_FOR_CHECK (NODE)))
3558 /* A language-specific token attached to the OpenMP data clauses to
3559 hold code (or code fragments) related to ctors, dtors, and op=.
3560 See semantics.c for details. */
3561 #define CP_OMP_CLAUSE_INFO(NODE) \
3562 TREE_TYPE (OMP_CLAUSE_RANGE_CHECK (NODE, OMP_CLAUSE_PRIVATE, \
3563 OMP_CLAUSE_COPYPRIVATE))
3565 /* These macros provide convenient access to the various _STMT nodes
3566 created when parsing template declarations. */
3567 #define TRY_STMTS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 0)
3568 #define TRY_HANDLERS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 1)
3570 #define EH_SPEC_STMTS(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 0)
3571 #define EH_SPEC_RAISES(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 1)
3573 #define USING_STMT_NAMESPACE(NODE) TREE_OPERAND (USING_STMT_CHECK (NODE), 0)
3575 /* Nonzero if this try block is a function try block. */
3576 #define FN_TRY_BLOCK_P(NODE) TREE_LANG_FLAG_3 (TRY_BLOCK_CHECK (NODE))
3577 #define HANDLER_PARMS(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 0)
3578 #define HANDLER_BODY(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 1)
3579 #define HANDLER_TYPE(NODE) TREE_TYPE (HANDLER_CHECK (NODE))
3581 /* CLEANUP_STMT accessors. The statement(s) covered, the cleanup to run
3582 and the VAR_DECL for which this cleanup exists. */
3583 #define CLEANUP_BODY(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 0)
3584 #define CLEANUP_EXPR(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 1)
3585 #define CLEANUP_DECL(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 2)
3587 /* IF_STMT accessors. These give access to the condition of the if
3588 statement, the then block of the if statement, and the else block
3589 of the if statement if it exists. */
3590 #define IF_COND(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 0)
3591 #define THEN_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 1)
3592 #define ELSE_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 2)
3594 /* WHILE_STMT accessors. These give access to the condition of the
3595 while statement and the body of the while statement, respectively. */
3596 #define WHILE_COND(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 0)
3597 #define WHILE_BODY(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 1)
3599 /* DO_STMT accessors. These give access to the condition of the do
3600 statement and the body of the do statement, respectively. */
3601 #define DO_COND(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 0)
3602 #define DO_BODY(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 1)
3604 /* FOR_STMT accessors. These give access to the init statement,
3605 condition, update expression, and body of the for statement,
3607 #define FOR_INIT_STMT(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 0)
3608 #define FOR_COND(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 1)
3609 #define FOR_EXPR(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 2)
3610 #define FOR_BODY(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 3)
3612 #define SWITCH_STMT_COND(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 0)
3613 #define SWITCH_STMT_BODY(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 1)
3614 #define SWITCH_STMT_TYPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 2)
3616 /* STMT_EXPR accessor. */
3617 #define STMT_EXPR_STMT(NODE) TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0)
3619 /* EXPR_STMT accessor. This gives the expression associated with an
3620 expression statement. */
3621 #define EXPR_STMT_EXPR(NODE) TREE_OPERAND (EXPR_STMT_CHECK (NODE), 0)
3623 /* True if this TARGET_EXPR was created by build_cplus_new, and so we can
3624 discard it if it isn't useful. */
3625 #define TARGET_EXPR_IMPLICIT_P(NODE) \
3626 TREE_LANG_FLAG_0 (TARGET_EXPR_CHECK (NODE))
3628 /* True if this TARGET_EXPR is the result of list-initialization of a
3630 #define TARGET_EXPR_LIST_INIT_P(NODE) \
3631 TREE_LANG_FLAG_1 (TARGET_EXPR_CHECK (NODE))
3633 /* An enumeration of the kind of tags that C++ accepts. */
3635 none_type = 0, /* Not a tag type. */
3636 record_type, /* "struct" types. */
3637 class_type, /* "class" types. */
3638 union_type, /* "union" types. */
3639 enum_type, /* "enum" types. */
3640 typename_type /* "typename" types. */
3643 /* The various kinds of lvalues we distinguish. */
3644 enum cp_lvalue_kind_flags {
3645 clk_none = 0, /* Things that are not an lvalue. */
3646 clk_ordinary = 1, /* An ordinary lvalue. */
3647 clk_rvalueref = 2,/* An rvalue formed using an rvalue reference */
3648 clk_class = 4, /* An rvalue of class-type. */
3649 clk_bitfield = 8, /* An lvalue for a bit-field. */
3650 clk_packed = 16 /* An lvalue for a packed field. */
3653 /* This type is used for parameters and variables which hold
3654 combinations of the flags in enum cp_lvalue_kind_flags. */
3655 typedef int cp_lvalue_kind;
3657 /* Various kinds of template specialization, instantiation, etc. */
3658 typedef enum tmpl_spec_kind {
3659 tsk_none, /* Not a template at all. */
3660 tsk_invalid_member_spec, /* An explicit member template
3661 specialization, but the enclosing
3662 classes have not all been explicitly
3664 tsk_invalid_expl_inst, /* An explicit instantiation containing
3665 template parameter lists. */
3666 tsk_excessive_parms, /* A template declaration with too many
3667 template parameter lists. */
3668 tsk_insufficient_parms, /* A template declaration with too few
3670 tsk_template, /* A template declaration. */
3671 tsk_expl_spec, /* An explicit specialization. */
3672 tsk_expl_inst /* An explicit instantiation. */
3675 /* The various kinds of access. BINFO_ACCESS depends on these being
3676 two bit quantities. The numerical values are important; they are
3677 used to initialize RTTI data structures, so changing them changes
3679 typedef enum access_kind {
3680 ak_none = 0, /* Inaccessible. */
3681 ak_public = 1, /* Accessible, as a `public' thing. */
3682 ak_protected = 2, /* Accessible, as a `protected' thing. */
3683 ak_private = 3 /* Accessible, as a `private' thing. */
3686 /* The various kinds of special functions. If you add to this list,
3687 you should update special_function_p as well. */
3688 typedef enum special_function_kind {
3689 sfk_none = 0, /* Not a special function. This enumeral
3690 must have value zero; see
3691 special_function_p. */
3692 sfk_constructor, /* A constructor. */
3693 sfk_copy_constructor, /* A copy constructor. */
3694 sfk_move_constructor, /* A move constructor. */
3695 sfk_assignment_operator, /* An assignment operator. */
3696 sfk_destructor, /* A destructor. */
3697 sfk_complete_destructor, /* A destructor for complete objects. */
3698 sfk_base_destructor, /* A destructor for base subobjects. */
3699 sfk_deleting_destructor, /* A destructor for complete objects that
3700 deletes the object after it has been
3702 sfk_conversion /* A conversion operator. */
3703 } special_function_kind;
3705 /* The various kinds of linkage. From [basic.link],
3707 A name is said to have linkage when it might denote the same
3708 object, reference, function, type, template, namespace or value
3709 as a name introduced in another scope:
3711 -- When a name has external linkage, the entity it denotes can
3712 be referred to from scopes of other translation units or from
3713 other scopes of the same translation unit.
3715 -- When a name has internal linkage, the entity it denotes can
3716 be referred to by names from other scopes in the same
3719 -- When a name has no linkage, the entity it denotes cannot be
3720 referred to by names from other scopes. */
3722 typedef enum linkage_kind {
3723 lk_none, /* No linkage. */
3724 lk_internal, /* Internal linkage. */
3725 lk_external /* External linkage. */
3728 /* Bitmask flags to control type substitution. */
3730 tf_none = 0, /* nothing special */
3731 tf_error = 1 << 0, /* give error messages */
3732 tf_warning = 1 << 1, /* give warnings too */
3733 tf_ignore_bad_quals = 1 << 2, /* ignore bad cvr qualifiers */
3734 tf_keep_type_decl = 1 << 3, /* retain typedef type decls
3735 (make_typename_type use) */
3736 tf_ptrmem_ok = 1 << 4, /* pointers to member ok (internal
3737 instantiate_type use) */
3738 tf_user = 1 << 5, /* found template must be a user template
3739 (lookup_template_class use) */
3740 tf_conv = 1 << 6, /* We are determining what kind of
3741 conversion might be permissible,
3742 not actually performing the
3744 tf_no_access_control = 1 << 7, /* Do not perform access checks, even
3745 when issuing other errors. */
3746 /* Do not instantiate classes (used by count_non_default_template_args). */
3747 tf_no_class_instantiations = 1 << 8,
3748 /* Convenient substitution flags combinations. */
3749 tf_warning_or_error = tf_warning | tf_error
3752 /* This type is used for parameters and variables which hold
3753 combinations of the flags in enum tsubst_flags. */
3754 typedef int tsubst_flags_t;
3756 /* The kind of checking we can do looking in a class hierarchy. */
3757 enum base_access_flags {
3758 ba_any = 0, /* Do not check access, allow an ambiguous base,
3759 prefer a non-virtual base */
3760 ba_unique = 1 << 0, /* Must be a unique base. */
3761 ba_check_bit = 1 << 1, /* Check access. */
3762 ba_check = ba_unique | ba_check_bit,
3763 ba_ignore_scope = 1 << 2, /* Ignore access allowed by local scope. */
3764 ba_quiet = 1 << 3 /* Do not issue error messages. */
3767 /* This type is used for parameters and variables which hold
3768 combinations of the flags in enum base_access_flags. */
3769 typedef int base_access;
3771 /* The various kinds of access check during parsing. */
3772 typedef enum deferring_kind {
3773 dk_no_deferred = 0, /* Check access immediately */
3774 dk_deferred = 1, /* Deferred check */
3775 dk_no_check = 2 /* No access check */
3778 /* The kind of base we can find, looking in a class hierarchy.
3779 Values <0 indicate we failed. */
3780 typedef enum base_kind {
3781 bk_inaccessible = -3, /* The base is inaccessible */
3782 bk_ambig = -2, /* The base is ambiguous */
3783 bk_not_base = -1, /* It is not a base */
3784 bk_same_type = 0, /* It is the same type */
3785 bk_proper_base = 1, /* It is a proper base */
3786 bk_via_virtual = 2 /* It is a proper base, but via a virtual
3787 path. This might not be the canonical
3791 /* Node for "pointer to (virtual) function".
3792 This may be distinct from ptr_type_node so gdb can distinguish them. */
3793 #define vfunc_ptr_type_node vtable_entry_type
3796 /* For building calls to `delete'. */
3797 extern GTY(()) tree integer_two_node;
3798 extern GTY(()) tree integer_three_node;
3800 /* The number of function bodies which we are currently processing.
3801 (Zero if we are at namespace scope, one inside the body of a
3802 function, two inside the body of a function in a local class, etc.) */
3803 extern int function_depth;
3807 /* Nonzero if we are parsing an unevaluated operand: an operand to
3808 sizeof, typeof, or alignof. This is a count since operands to
3809 sizeof can be nested. */
3811 extern int cp_unevaluated_operand;
3815 /* These values are used for the `STRICT' parameter to type_unification and
3816 fn_type_unification. Their meanings are described with the
3817 documentation for fn_type_unification. */
3819 typedef enum unification_kind_t {
3823 } unification_kind_t;
3827 extern int current_class_depth;
3829 /* An array of all local classes present in this translation unit, in
3830 declaration order. */
3831 extern GTY(()) VEC(tree,gc) *local_classes;
3833 /* Here's where we control how name mangling takes place. */
3835 /* Cannot use '$' up front, because this confuses gdb
3836 (names beginning with '$' are gdb-local identifiers).
3838 Note that all forms in which the '$' is significant are long enough
3839 for direct indexing (meaning that if we know there is a '$'
3840 at a particular location, we can index into the string at
3841 any other location that provides distinguishing characters). */
3843 /* Define NO_DOT_IN_LABEL in your favorite tm file if your assembler
3844 doesn't allow '.' in symbol names. */
3845 #ifndef NO_DOT_IN_LABEL
3849 #define AUTO_TEMP_NAME "_.tmp_"
3850 #define VFIELD_BASE ".vf"
3851 #define VFIELD_NAME "_vptr."
3852 #define VFIELD_NAME_FORMAT "_vptr.%s"
3854 #define ANON_AGGRNAME_FORMAT "._%d"
3856 #else /* NO_DOT_IN_LABEL */
3858 #ifndef NO_DOLLAR_IN_LABEL
3862 #define AUTO_TEMP_NAME "_$tmp_"
3863 #define VFIELD_BASE "$vf"
3864 #define VFIELD_NAME "_vptr$"
3865 #define VFIELD_NAME_FORMAT "_vptr$%s"
3866 #define ANON_AGGRNAME_FORMAT "$_%d"
3868 #else /* NO_DOLLAR_IN_LABEL */
3870 #define IN_CHARGE_NAME "__in_chrg"
3871 #define AUTO_TEMP_NAME "__tmp_"
3872 #define TEMP_NAME_P(ID_NODE) \
3873 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, \
3874 sizeof (AUTO_TEMP_NAME) - 1))
3875 #define VTABLE_NAME "__vt_"
3876 #define VTABLE_NAME_P(ID_NODE) \
3877 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VTABLE_NAME, \
3878 sizeof (VTABLE_NAME) - 1))
3879 #define VFIELD_BASE "__vfb"
3880 #define VFIELD_NAME "__vptr_"
3881 #define VFIELD_NAME_P(ID_NODE) \
3882 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, \
3883 sizeof (VFIELD_NAME) - 1))
3884 #define VFIELD_NAME_FORMAT "__vptr_%s"
3886 #define ANON_AGGRNAME_PREFIX "__anon_"
3887 #define ANON_AGGRNAME_P(ID_NODE) \
3888 (!strncmp (IDENTIFIER_POINTER (ID_NODE), ANON_AGGRNAME_PREFIX, \
3889 sizeof (ANON_AGGRNAME_PREFIX) - 1))
3890 #define ANON_AGGRNAME_FORMAT "__anon_%d"
3892 #endif /* NO_DOLLAR_IN_LABEL */
3893 #endif /* NO_DOT_IN_LABEL */
3895 #define THIS_NAME "this"
3897 #define IN_CHARGE_NAME "__in_chrg"
3899 #define VTBL_PTR_TYPE "__vtbl_ptr_type"
3900 #define VTABLE_DELTA_NAME "__delta"
3901 #define VTABLE_PFN_NAME "__pfn"
3903 #define LAMBDANAME_PREFIX "__lambda"
3904 #define LAMBDANAME_FORMAT LAMBDANAME_PREFIX "%d"
3905 #define LAMBDANAME_P(ID_NODE) \
3906 (!strncmp (IDENTIFIER_POINTER (ID_NODE), \
3907 LAMBDANAME_PREFIX, \
3908 sizeof (LAMBDANAME_PREFIX) - 1))
3910 #if !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL)
3912 #define VTABLE_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == 'v' \
3913 && IDENTIFIER_POINTER (ID_NODE)[2] == 't' \
3914 && IDENTIFIER_POINTER (ID_NODE)[3] == JOINER)
3916 #define TEMP_NAME_P(ID_NODE) \
3917 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, sizeof (AUTO_TEMP_NAME)-1))
3918 #define VFIELD_NAME_P(ID_NODE) \
3919 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, sizeof(VFIELD_NAME)-1))
3921 /* For anonymous aggregate types, we need some sort of name to
3922 hold on to. In practice, this should not appear, but it should
3923 not be harmful if it does. */
3924 #define ANON_AGGRNAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[0] == JOINER \
3925 && IDENTIFIER_POINTER (ID_NODE)[1] == '_')
3926 #endif /* !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) */
3929 /* Nonzero if we're done parsing and into end-of-file activities. */
3933 /* A list of namespace-scope objects which have constructors or
3934 destructors which reside in the global scope. The decl is stored
3935 in the TREE_VALUE slot and the initializer is stored in the
3936 TREE_PURPOSE slot. */
3937 extern GTY(()) tree static_aggregates;
3939 enum overload_flags { NO_SPECIAL = 0, DTOR_FLAG, TYPENAME_FLAG };
3941 /* These are uses as bits in flags passed to various functions to
3942 control their behavior. Despite the LOOKUP_ prefix, many of these
3943 do not control name lookup. ??? Functions using these flags should
3944 probably be modified to accept explicit boolean flags for the
3945 behaviors relevant to them. */
3946 /* Check for access violations. */
3947 #define LOOKUP_PROTECT (1 << 0)
3948 /* Complain if no suitable member function matching the arguments is
3950 #define LOOKUP_COMPLAIN (1 << 1)
3951 #define LOOKUP_NORMAL (LOOKUP_PROTECT | LOOKUP_COMPLAIN)
3952 /* Even if the function found by lookup is a virtual function, it
3953 should be called directly. */
3954 #define LOOKUP_NONVIRTUAL (1 << 2)
3955 /* Non-converting (i.e., "explicit") constructors are not tried. This flag
3956 indicates that we are not performing direct-initialization. */
3957 #define LOOKUP_ONLYCONVERTING (1 << 3)
3958 #define LOOKUP_IMPLICIT (LOOKUP_NORMAL | LOOKUP_ONLYCONVERTING)
3959 /* If a temporary is created, it should be created so that it lives
3960 as long as the current variable bindings; otherwise it only lives
3961 until the end of the complete-expression. It also forces
3962 direct-initialization in cases where other parts of the compiler
3963 have already generated a temporary, such as reference
3964 initialization and the catch parameter. */
3965 #define DIRECT_BIND (1 << 4)
3966 /* User-defined conversions are not permitted. (Built-in conversions
3968 #define LOOKUP_NO_CONVERSION (1 << 5)
3969 /* The user has explicitly called a destructor. (Therefore, we do
3970 not need to check that the object is non-NULL before calling the
3972 #define LOOKUP_DESTRUCTOR (1 << 6)
3973 /* Do not permit references to bind to temporaries. */
3974 #define LOOKUP_NO_TEMP_BIND (1 << 7)
3975 /* Do not accept objects, and possibly namespaces. */
3976 #define LOOKUP_PREFER_TYPES (1 << 8)
3977 /* Do not accept objects, and possibly types. */
3978 #define LOOKUP_PREFER_NAMESPACES (1 << 9)
3979 /* Accept types or namespaces. */
3980 #define LOOKUP_PREFER_BOTH (LOOKUP_PREFER_TYPES | LOOKUP_PREFER_NAMESPACES)
3981 /* Return friend declarations and un-declared builtin functions.
3982 (Normally, these entities are registered in the symbol table, but
3983 not found by lookup.) */
3984 #define LOOKUP_HIDDEN (LOOKUP_PREFER_NAMESPACES << 1)
3985 /* Prefer that the lvalue be treated as an rvalue. */
3986 #define LOOKUP_PREFER_RVALUE (LOOKUP_HIDDEN << 1)
3987 /* We're inside an init-list, so narrowing conversions are ill-formed. */
3988 #define LOOKUP_NO_NARROWING (LOOKUP_PREFER_RVALUE << 1)
3989 /* Avoid user-defined conversions for the first parameter of a copy
3991 #define LOOKUP_NO_COPY_CTOR_CONVERSION (LOOKUP_NO_NARROWING << 1)
3992 /* This is the first parameter of a copy constructor. */
3993 #define LOOKUP_COPY_PARM (LOOKUP_NO_COPY_CTOR_CONVERSION << 1)
3995 #define LOOKUP_NAMESPACES_ONLY(F) \
3996 (((F) & LOOKUP_PREFER_NAMESPACES) && !((F) & LOOKUP_PREFER_TYPES))
3997 #define LOOKUP_TYPES_ONLY(F) \
3998 (!((F) & LOOKUP_PREFER_NAMESPACES) && ((F) & LOOKUP_PREFER_TYPES))
3999 #define LOOKUP_QUALIFIERS_ONLY(F) ((F) & LOOKUP_PREFER_BOTH)
4002 /* These flags are used by the conversion code.
4003 CONV_IMPLICIT : Perform implicit conversions (standard and user-defined).
4004 CONV_STATIC : Perform the explicit conversions for static_cast.
4005 CONV_CONST : Perform the explicit conversions for const_cast.
4006 CONV_REINTERPRET: Perform the explicit conversions for reinterpret_cast.
4007 CONV_PRIVATE : Perform upcasts to private bases.
4008 CONV_FORCE_TEMP : Require a new temporary when converting to the same
4011 #define CONV_IMPLICIT 1
4012 #define CONV_STATIC 2
4013 #define CONV_CONST 4
4014 #define CONV_REINTERPRET 8
4015 #define CONV_PRIVATE 16
4016 /* #define CONV_NONCONVERTING 32 */
4017 #define CONV_FORCE_TEMP 64
4018 #define CONV_OLD_CONVERT (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
4020 #define CONV_C_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
4021 | CONV_REINTERPRET | CONV_PRIVATE | CONV_FORCE_TEMP)
4023 /* Used by build_expr_type_conversion to indicate which types are
4024 acceptable as arguments to the expression under consideration. */
4026 #define WANT_INT 1 /* integer types, including bool */
4027 #define WANT_FLOAT 2 /* floating point types */
4028 #define WANT_ENUM 4 /* enumerated types */
4029 #define WANT_POINTER 8 /* pointer types */
4030 #define WANT_NULL 16 /* null pointer constant */
4031 #define WANT_VECTOR 32 /* vector types */
4032 #define WANT_ARITH (WANT_INT | WANT_FLOAT | WANT_VECTOR)
4034 /* Used with comptypes, and related functions, to guide type
4037 #define COMPARE_STRICT 0 /* Just check if the types are the
4039 #define COMPARE_BASE 1 /* Check to see if the second type is
4040 derived from the first. */
4041 #define COMPARE_DERIVED 2 /* Like COMPARE_BASE, but in
4043 #define COMPARE_REDECLARATION 4 /* The comparison is being done when
4044 another declaration of an existing
4046 #define COMPARE_STRUCTURAL 8 /* The comparison is intended to be
4047 structural. The actual comparison
4048 will be identical to
4051 /* Used with push_overloaded_decl. */
4052 #define PUSH_GLOBAL 0 /* Push the DECL into namespace scope,
4053 regardless of the current scope. */
4054 #define PUSH_LOCAL 1 /* Push the DECL into the current
4056 #define PUSH_USING 2 /* We are pushing this DECL as the
4057 result of a using declaration. */
4059 /* Used with start function. */
4060 #define SF_DEFAULT 0 /* No flags. */
4061 #define SF_PRE_PARSED 1 /* The function declaration has
4062 already been parsed. */
4063 #define SF_INCLASS_INLINE 2 /* The function is an inline, defined
4064 in the class body. */
4066 /* Used with start_decl's initialized parameter. */
4067 #define SD_UNINITIALIZED 0
4068 #define SD_INITIALIZED 1
4069 #define SD_DEFAULTED 2
4070 #define SD_DELETED 3
4072 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, or if TYPE2
4073 is derived from TYPE1, or if TYPE2 is a pointer (reference) to a
4074 class derived from the type pointed to (referred to) by TYPE1. */
4075 #define same_or_base_type_p(TYPE1, TYPE2) \
4076 comptypes ((TYPE1), (TYPE2), COMPARE_BASE)
4078 /* These macros are used to access a TEMPLATE_PARM_INDEX. */
4079 #define TEMPLATE_PARM_INDEX_CAST(NODE) \
4080 ((template_parm_index*)TEMPLATE_PARM_INDEX_CHECK (NODE))
4081 #define TEMPLATE_PARM_IDX(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->index)
4082 #define TEMPLATE_PARM_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->level)
4083 #define TEMPLATE_PARM_DESCENDANTS(NODE) (TREE_CHAIN (NODE))
4084 #define TEMPLATE_PARM_ORIG_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->orig_level)
4085 #define TEMPLATE_PARM_DECL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->decl)
4086 #define TEMPLATE_PARM_PARAMETER_PACK(NODE) \
4087 (TREE_LANG_FLAG_0 (TEMPLATE_PARM_INDEX_CHECK (NODE)))
4089 /* These macros are for accessing the fields of TEMPLATE_TYPE_PARM,
4090 TEMPLATE_TEMPLATE_PARM and BOUND_TEMPLATE_TEMPLATE_PARM nodes. */
4091 #define TEMPLATE_TYPE_PARM_INDEX(NODE) \
4092 (TREE_CHECK3 ((NODE), TEMPLATE_TYPE_PARM, TEMPLATE_TEMPLATE_PARM, \
4093 BOUND_TEMPLATE_TEMPLATE_PARM))->type.values
4094 #define TEMPLATE_TYPE_IDX(NODE) \
4095 (TEMPLATE_PARM_IDX (TEMPLATE_TYPE_PARM_INDEX (NODE)))
4096 #define TEMPLATE_TYPE_LEVEL(NODE) \
4097 (TEMPLATE_PARM_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
4098 #define TEMPLATE_TYPE_ORIG_LEVEL(NODE) \
4099 (TEMPLATE_PARM_ORIG_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
4100 #define TEMPLATE_TYPE_DECL(NODE) \
4101 (TEMPLATE_PARM_DECL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
4102 #define TEMPLATE_TYPE_PARAMETER_PACK(NODE) \
4103 (TEMPLATE_PARM_PARAMETER_PACK (TEMPLATE_TYPE_PARM_INDEX (NODE)))
4105 /* These constants can used as bit flags in the process of tree formatting.
4107 TFF_PLAIN_IDENTIFIER: unqualified part of a name.
4108 TFF_SCOPE: include the class and namespace scope of the name.
4109 TFF_CHASE_TYPEDEF: print the original type-id instead of the typedef-name.
4110 TFF_DECL_SPECIFIERS: print decl-specifiers.
4111 TFF_CLASS_KEY_OR_ENUM: precede a class-type name (resp. enum name) with
4112 a class-key (resp. `enum').
4113 TFF_RETURN_TYPE: include function return type.
4114 TFF_FUNCTION_DEFAULT_ARGUMENTS: include function default parameter values.
4115 TFF_EXCEPTION_SPECIFICATION: show function exception specification.
4116 TFF_TEMPLATE_HEADER: show the template<...> header in a
4117 template-declaration.
4118 TFF_TEMPLATE_NAME: show only template-name.
4119 TFF_EXPR_IN_PARENS: parenthesize expressions.
4120 TFF_NO_FUNCTION_ARGUMENTS: don't show function arguments.
4121 TFF_UNQUALIFIED_NAME: do not print the qualifying scope of the
4123 TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS: do not omit template arguments
4124 identical to their defaults. */
4126 #define TFF_PLAIN_IDENTIFIER (0)
4127 #define TFF_SCOPE (1)
4128 #define TFF_CHASE_TYPEDEF (1 << 1)
4129 #define TFF_DECL_SPECIFIERS (1 << 2)
4130 #define TFF_CLASS_KEY_OR_ENUM (1 << 3)
4131 #define TFF_RETURN_TYPE (1 << 4)
4132 #define TFF_FUNCTION_DEFAULT_ARGUMENTS (1 << 5)
4133 #define TFF_EXCEPTION_SPECIFICATION (1 << 6)
4134 #define TFF_TEMPLATE_HEADER (1 << 7)
4135 #define TFF_TEMPLATE_NAME (1 << 8)
4136 #define TFF_EXPR_IN_PARENS (1 << 9)
4137 #define TFF_NO_FUNCTION_ARGUMENTS (1 << 10)
4138 #define TFF_UNQUALIFIED_NAME (1 << 11)
4139 #define TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS (1 << 12)
4141 /* Returns the TEMPLATE_DECL associated to a TEMPLATE_TEMPLATE_PARM
4143 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_DECL(NODE) \
4144 ((TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM) \
4145 ? TYPE_TI_TEMPLATE (NODE) \
4150 extern void init_reswords (void);
4152 typedef struct GTY(()) operator_name_info_t {
4153 /* The IDENTIFIER_NODE for the operator. */
4155 /* The name of the operator. */
4157 /* The mangled name of the operator. */
4158 const char *mangled_name;
4159 /* The arity of the operator. */
4161 } operator_name_info_t;
4163 /* A mapping from tree codes to operator name information. */
4164 extern GTY(()) operator_name_info_t operator_name_info
4165 [(int) MAX_TREE_CODES];
4166 /* Similar, but for assignment operators. */
4167 extern GTY(()) operator_name_info_t assignment_operator_name_info
4168 [(int) MAX_TREE_CODES];
4170 /* A type-qualifier, or bitmask therefore, using the TYPE_QUAL
4173 typedef int cp_cv_quals;
4175 /* A storage class. */
4177 typedef enum cp_storage_class {
4178 /* sc_none must be zero so that zeroing a cp_decl_specifier_seq
4179 sets the storage_class field to sc_none. */
4188 /* An individual decl-specifier. */
4190 typedef enum cp_decl_spec {
4192 ds_signed = ds_first,
4210 /* A decl-specifier-seq. */
4212 typedef struct cp_decl_specifier_seq {
4213 /* The number of times each of the keywords has been seen. */
4214 unsigned specs[(int) ds_last];
4215 /* The primary type, if any, given by the decl-specifier-seq.
4216 Modifiers, like "short", "const", and "unsigned" are not
4217 reflected here. This field will be a TYPE, unless a typedef-name
4218 was used, in which case it will be a TYPE_DECL. */
4220 /* The location of the primary type. Mainly used for error
4222 location_t type_location;
4223 /* The attributes, if any, provided with the specifier sequence. */
4225 /* If non-NULL, a built-in type that the user attempted to redefine
4226 to some other type. */
4227 tree redefined_builtin_type;
4228 /* The storage class specified -- or sc_none if no storage class was
4229 explicitly specified. */
4230 cp_storage_class storage_class;
4231 /* True iff TYPE_SPEC indicates a user-defined type. */
4232 BOOL_BITFIELD user_defined_type_p : 1;
4233 /* True iff multiple types were (erroneously) specified for this
4234 decl-specifier-seq. */
4235 BOOL_BITFIELD multiple_types_p : 1;
4236 /* True iff multiple storage classes were (erroneously) specified
4237 for this decl-specifier-seq or a combination of a storage class
4238 with a typedef specifier. */
4239 BOOL_BITFIELD conflicting_specifiers_p : 1;
4240 /* True iff at least one decl-specifier was found. */
4241 BOOL_BITFIELD any_specifiers_p : 1;
4242 /* True iff "int" was explicitly provided. */
4243 BOOL_BITFIELD explicit_int_p : 1;
4244 /* True iff "char" was explicitly provided. */
4245 BOOL_BITFIELD explicit_char_p : 1;
4246 } cp_decl_specifier_seq;
4248 /* The various kinds of declarators. */
4250 typedef enum cp_declarator_kind {
4258 } cp_declarator_kind;
4262 typedef struct cp_declarator cp_declarator;
4264 typedef struct cp_parameter_declarator cp_parameter_declarator;
4266 /* A parameter, before it has been semantically analyzed. */
4267 struct cp_parameter_declarator {
4268 /* The next parameter, or NULL_TREE if none. */
4269 cp_parameter_declarator *next;
4270 /* The decl-specifiers-seq for the parameter. */
4271 cp_decl_specifier_seq decl_specifiers;
4272 /* The declarator for the parameter. */
4273 cp_declarator *declarator;
4274 /* The default-argument expression, or NULL_TREE, if none. */
4275 tree default_argument;
4276 /* True iff this is the first parameter in the list and the
4277 parameter sequence ends with an ellipsis. */
4282 struct cp_declarator {
4283 /* The kind of declarator. */
4284 ENUM_BITFIELD (cp_declarator_kind) kind : 4;
4285 /* Whether we parsed an ellipsis (`...') just before the declarator,
4286 to indicate this is a parameter pack. */
4287 BOOL_BITFIELD parameter_pack_p : 1;
4288 /* Attributes that apply to this declarator. */
4290 /* For all but cdk_id and cdk_error, the contained declarator. For
4291 cdk_id and cdk_error, guaranteed to be NULL. */
4292 cp_declarator *declarator;
4293 location_t id_loc; /* Currently only set for cdk_id and cdk_function. */
4295 /* For identifiers. */
4297 /* If non-NULL, the qualifying scope (a NAMESPACE_DECL or
4298 *_TYPE) for this identifier. */
4299 tree qualifying_scope;
4300 /* The unqualified name of the entity -- an IDENTIFIER_NODE,
4301 BIT_NOT_EXPR, or TEMPLATE_ID_EXPR. */
4302 tree unqualified_name;
4303 /* If this is the name of a function, what kind of special
4304 function (if any). */
4305 special_function_kind sfk;
4307 /* For functions. */
4309 /* The parameters to the function as a TREE_LIST of decl/default. */
4311 /* The cv-qualifiers for the function. */
4312 cp_cv_quals qualifiers;
4313 /* The exception-specification for the function. */
4314 tree exception_specification;
4315 /* The late-specified return type, if any. */
4316 tree late_return_type;
4320 /* The bounds to the array. */
4323 /* For cdk_pointer and cdk_ptrmem. */
4325 /* The cv-qualifiers for the pointer. */
4326 cp_cv_quals qualifiers;
4327 /* For cdk_ptrmem, the class type containing the member. */
4330 /* For cdk_reference */
4332 /* The cv-qualifiers for the reference. These qualifiers are
4333 only used to diagnose ill-formed code. */
4334 cp_cv_quals qualifiers;
4335 /* Whether this is an rvalue reference */
4341 /* A level of template instantiation. */
4342 struct GTY(()) tinst_level {
4343 /* The immediately deeper level in the chain. */
4344 struct tinst_level *next;
4346 /* The original node. Can be either a DECL (for a function or static
4347 data member) or a TYPE (for a class), depending on what we were
4348 asked to instantiate. */
4351 /* The location where the template is instantiated. */
4354 /* True if the location is in a system header. */
4355 bool in_system_header_p;
4358 /* A parameter list indicating for a function with no parameters,
4359 e.g "int f(void)". */
4360 extern cp_parameter_declarator *no_parameters;
4362 /* True if we saw "#pragma GCC java_exceptions". */
4363 extern bool pragma_java_exceptions;
4366 extern bool check_dtor_name (tree, tree);
4368 extern tree build_conditional_expr (tree, tree, tree,
4370 extern tree build_addr_func (tree);
4371 extern tree build_call_a (tree, int, tree*);
4372 extern tree build_call_n (tree, int, ...);
4373 extern bool null_ptr_cst_p (tree);
4374 extern bool sufficient_parms_p (const_tree);
4375 extern tree type_decays_to (tree);
4376 extern tree build_user_type_conversion (tree, tree, int);
4377 extern tree build_new_function_call (tree, VEC(tree,gc) **, bool,
4379 extern tree build_operator_new_call (tree, VEC(tree,gc) **, tree *,
4381 extern tree build_new_method_call (tree, tree, VEC(tree,gc) **,
4384 extern tree build_special_member_call (tree, tree, VEC(tree,gc) **,
4385 tree, int, tsubst_flags_t);
4386 extern tree build_new_op (enum tree_code, int, tree,
4389 extern tree build_op_call (tree, VEC(tree,gc) **,
4391 extern tree build_op_delete_call (enum tree_code, tree, tree, bool, tree, tree);
4392 extern bool can_convert (tree, tree);
4393 extern bool can_convert_arg (tree, tree, tree, int);
4394 extern bool can_convert_arg_bad (tree, tree, tree, int);
4395 extern bool enforce_access (tree, tree, tree);
4396 extern tree convert_default_arg (tree, tree, tree, int);
4397 extern tree convert_arg_to_ellipsis (tree);
4398 extern tree build_x_va_arg (tree, tree);
4399 extern tree cxx_type_promotes_to (tree);
4400 extern tree type_passed_as (tree);
4401 extern tree convert_for_arg_passing (tree, tree);
4402 extern bool is_properly_derived_from (tree, tree);
4403 extern tree set_up_extended_ref_temp (tree, tree, tree *, tree *);
4404 extern tree initialize_reference (tree, tree, tree, tree *);
4405 extern tree make_temporary_var_for_ref_to_temp (tree, tree);
4406 extern tree strip_top_quals (tree);
4407 extern bool reference_related_p (tree, tree);
4408 extern tree perform_implicit_conversion (tree, tree, tsubst_flags_t);
4409 extern tree perform_implicit_conversion_flags (tree, tree, tsubst_flags_t, int);
4410 extern tree perform_direct_initialization_if_possible (tree, tree, bool,
4412 extern tree in_charge_arg_for_name (tree);
4413 extern tree build_cxx_call (tree, int, tree *);
4414 extern bool is_std_init_list (tree);
4415 extern bool is_list_ctor (tree);
4416 #ifdef ENABLE_CHECKING
4417 extern void validate_conversion_obstack (void);
4418 #endif /* ENABLE_CHECKING */
4421 extern tree build_vfield_ref (tree, tree);
4422 extern tree build_base_path (enum tree_code, tree,
4424 extern tree convert_to_base (tree, tree, bool, bool);
4425 extern tree convert_to_base_statically (tree, tree);
4426 extern tree build_vtbl_ref (tree, tree);
4427 extern tree build_vfn_ref (tree, tree);
4428 extern tree get_vtable_decl (tree, int);
4429 extern void resort_type_method_vec (void *, void *,
4430 gt_pointer_operator, void *);
4431 extern bool add_method (tree, tree, tree);
4432 extern bool currently_open_class (tree);
4433 extern tree currently_open_derived_class (tree);
4434 extern tree finish_struct (tree, tree);
4435 extern void finish_struct_1 (tree);
4436 extern int resolves_to_fixed_type_p (tree, int *);
4437 extern void init_class_processing (void);
4438 extern int is_empty_class (tree);
4439 extern bool is_really_empty_class (tree);
4440 extern void pushclass (tree);
4441 extern void popclass (void);
4442 extern void push_nested_class (tree);
4443 extern void pop_nested_class (void);
4444 extern int current_lang_depth (void);
4445 extern void push_lang_context (tree);
4446 extern void pop_lang_context (void);
4447 extern tree instantiate_type (tree, tree, tsubst_flags_t);
4448 extern void print_class_statistics (void);
4449 extern void build_self_reference (void);
4450 extern int same_signature_p (const_tree, const_tree);
4451 extern void maybe_add_class_template_decl_list (tree, tree, int);
4452 extern void unreverse_member_declarations (tree);
4453 extern void invalidate_class_lookup_cache (void);
4454 extern void maybe_note_name_used_in_class (tree, tree);
4455 extern void note_name_declared_in_class (tree, tree);
4456 extern tree get_vtbl_decl_for_binfo (tree);
4457 extern void debug_class (tree);
4458 extern void debug_thunks (tree);
4459 extern tree cp_fold_obj_type_ref (tree, tree);
4460 extern void set_linkage_according_to_type (tree, tree);
4461 extern void determine_key_method (tree);
4462 extern void check_for_override (tree, tree);
4463 extern void push_class_stack (void);
4464 extern void pop_class_stack (void);
4465 extern bool type_has_user_nondefault_constructor (tree);
4466 extern bool type_has_user_provided_constructor (tree);
4467 extern bool type_has_user_provided_default_constructor (tree);
4468 extern bool defaultable_fn_p (tree);
4469 extern void fixup_type_variants (tree);
4470 extern tree* decl_cloned_function_p (const_tree, bool);
4471 extern void clone_function_decl (tree, int);
4472 extern void adjust_clone_args (tree);
4475 extern tree convert_to_reference (tree, tree, int, int, tree);
4476 extern tree convert_from_reference (tree);
4477 extern tree force_rvalue (tree);
4478 extern tree ocp_convert (tree, tree, int, int);
4479 extern tree cp_convert (tree, tree);
4480 extern tree cp_convert_and_check (tree, tree);
4481 extern tree cp_fold_convert (tree, tree);
4482 extern tree convert_to_void (tree, const char */*implicit context*/,
4484 extern tree convert_force (tree, tree, int);
4485 extern tree build_expr_type_conversion (int, tree, bool);
4486 extern tree type_promotes_to (tree);
4487 extern tree perform_qualification_conversions (tree, tree);
4489 /* in name-lookup.c */
4490 extern tree get_anonymous_namespace_name (void);
4491 extern tree pushdecl (tree);
4492 extern tree pushdecl_maybe_friend (tree, bool);
4493 extern void maybe_push_cleanup_level (tree);
4494 extern tree pushtag (tree, tree, tag_scope);
4495 extern tree make_anon_name (void);
4496 extern tree pushdecl_top_level_maybe_friend (tree, bool);
4497 extern tree pushdecl_top_level_and_finish (tree, tree);
4498 extern tree check_for_out_of_scope_variable (tree);
4499 extern void print_other_binding_stack (struct cp_binding_level *);
4500 extern tree maybe_push_decl (tree);
4503 extern tree poplevel (int, int, int);
4504 extern void cxx_init_decl_processing (void);
4505 enum cp_tree_node_structure_enum cp_tree_node_structure
4506 (union lang_tree_node *);
4507 extern void finish_scope (void);
4508 extern void push_switch (tree);
4509 extern void pop_switch (void);
4510 extern tree make_lambda_name (void);
4511 extern int decls_match (tree, tree);
4512 extern tree duplicate_decls (tree, tree, bool);
4513 extern tree declare_local_label (tree);
4514 extern tree define_label (location_t, tree);
4515 extern void check_goto (tree);
4516 extern bool check_omp_return (void);
4517 extern tree make_typename_type (tree, tree, enum tag_types, tsubst_flags_t);
4518 extern tree make_unbound_class_template (tree, tree, tree, tsubst_flags_t);
4519 extern tree build_library_fn_ptr (const char *, tree);
4520 extern tree build_cp_library_fn_ptr (const char *, tree);
4521 extern tree push_library_fn (tree, tree, tree);
4522 extern tree push_void_library_fn (tree, tree);
4523 extern tree push_throw_library_fn (tree, tree);
4524 extern tree check_tag_decl (cp_decl_specifier_seq *);
4525 extern tree shadow_tag (cp_decl_specifier_seq *);
4526 extern tree groktypename (cp_decl_specifier_seq *, const cp_declarator *, bool);
4527 extern tree start_decl (const cp_declarator *, cp_decl_specifier_seq *, int, tree, tree, tree *);
4528 extern void start_decl_1 (tree, bool);
4529 extern bool check_array_initializer (tree, tree, tree);
4530 extern void cp_finish_decl (tree, tree, bool, tree, int);
4531 extern int cp_complete_array_type (tree *, tree, bool);
4532 extern tree build_ptrmemfunc_type (tree);
4533 extern tree build_ptrmem_type (tree, tree);
4534 /* the grokdeclarator prototype is in decl.h */
4535 extern tree build_this_parm (tree, cp_cv_quals);
4536 extern int copy_fn_p (const_tree);
4537 extern bool move_fn_p (const_tree);
4538 extern tree get_scope_of_declarator (const cp_declarator *);
4539 extern void grok_special_member_properties (tree);
4540 extern int grok_ctor_properties (const_tree, const_tree);
4541 extern bool grok_op_properties (tree, bool);
4542 extern tree xref_tag (enum tag_types, tree, tag_scope, bool);
4543 extern tree xref_tag_from_type (tree, tree, tag_scope);
4544 extern bool xref_basetypes (tree, tree);
4545 extern tree start_enum (tree, tree, bool);
4546 extern void finish_enum (tree);
4547 extern void build_enumerator (tree, tree, tree);
4548 extern tree lookup_enumerator (tree, tree);
4549 extern void start_preparsed_function (tree, tree, int);
4550 extern int start_function (cp_decl_specifier_seq *, const cp_declarator *, tree);
4551 extern tree begin_function_body (void);
4552 extern void finish_function_body (tree);
4553 extern tree outer_curly_brace_block (tree);
4554 extern tree finish_function (int);
4555 extern tree grokmethod (cp_decl_specifier_seq *, const cp_declarator *, tree);
4556 extern void maybe_register_incomplete_var (tree);
4557 extern void maybe_commonize_var (tree);
4558 extern void complete_vars (tree);
4559 extern void finish_stmt (void);
4560 extern void revert_static_member_fn (tree);
4561 extern void fixup_anonymous_aggr (tree);
4562 extern int check_static_variable_definition (tree, tree);
4563 extern tree compute_array_index_type (tree, tree);
4564 extern tree check_default_argument (tree, tree);
4565 typedef int (*walk_namespaces_fn) (tree, void *);
4566 extern int walk_namespaces (walk_namespaces_fn,
4568 extern int wrapup_globals_for_namespace (tree, void *);
4569 extern tree create_implicit_typedef (tree, tree);
4570 extern int local_variable_p (const_tree);
4571 extern tree register_dtor_fn (tree);
4572 extern tmpl_spec_kind current_tmpl_spec_kind (int);
4573 extern tree cp_fname_init (const char *, tree *);
4574 extern tree cxx_builtin_function (tree decl);
4575 extern tree cxx_builtin_function_ext_scope (tree decl);
4576 extern tree check_elaborated_type_specifier (enum tag_types, tree, bool);
4577 extern void warn_extern_redeclared_static (tree, tree);
4578 extern tree cxx_comdat_group (tree);
4579 extern bool cp_missing_noreturn_ok_p (tree);
4580 extern void initialize_artificial_var (tree, tree);
4581 extern tree check_var_type (tree, tree);
4582 extern tree reshape_init (tree, tree);
4584 extern bool defer_mark_used_calls;
4585 extern GTY(()) VEC(tree, gc) *deferred_mark_used_calls;
4586 extern tree finish_case_label (location_t, tree, tree);
4587 extern tree cxx_maybe_build_cleanup (tree);
4590 extern bool check_java_method (tree);
4591 extern tree build_memfn_type (tree, tree, cp_cv_quals);
4592 extern void maybe_retrofit_in_chrg (tree);
4593 extern void maybe_make_one_only (tree);
4594 extern bool vague_linkage_fn_p (tree);
4595 extern void grokclassfn (tree, tree,
4596 enum overload_flags);
4597 extern tree grok_array_decl (tree, tree);
4598 extern tree delete_sanity (tree, tree, bool, int);
4599 extern tree check_classfn (tree, tree, tree);
4600 extern void check_member_template (tree);
4601 extern tree grokfield (const cp_declarator *, cp_decl_specifier_seq *,
4602 tree, bool, tree, tree);
4603 extern tree grokbitfield (const cp_declarator *, cp_decl_specifier_seq *,
4605 extern tree cp_reconstruct_complex_type (tree, tree);
4606 extern void cplus_decl_attributes (tree *, tree, int);
4607 extern void finish_anon_union (tree);
4608 extern void cp_write_global_declarations (void);
4609 extern tree coerce_new_type (tree);
4610 extern tree coerce_delete_type (tree);
4611 extern void comdat_linkage (tree);
4612 extern void determine_visibility (tree);
4613 extern void constrain_class_visibility (tree);
4614 extern void import_export_decl (tree);
4615 extern tree build_cleanup (tree);
4616 extern tree build_offset_ref_call_from_tree (tree, VEC(tree,gc) **);
4617 extern void check_default_args (tree);
4618 extern void mark_used (tree);
4619 extern void finish_static_data_member_decl (tree, tree, bool, tree, int);
4620 extern tree cp_build_parm_decl (tree, tree);
4621 extern tree get_guard (tree);
4622 extern tree get_guard_cond (tree);
4623 extern tree set_guard (tree);
4624 extern tree cxx_callgraph_analyze_expr (tree *, int *);
4625 extern void mark_needed (tree);
4626 extern bool decl_needed_p (tree);
4627 extern void note_vague_linkage_fn (tree);
4628 extern tree build_artificial_parm (tree, tree);
4629 extern bool possibly_inlined_p (tree);
4630 extern int parm_index (tree);
4633 extern void init_error (void);
4634 extern const char *type_as_string (tree, int);
4635 extern const char *type_as_string_translate (tree, int);
4636 extern const char *decl_as_string (tree, int);
4637 extern const char *decl_as_string_translate (tree, int);
4638 extern const char *expr_as_string (tree, int);
4639 extern const char *lang_decl_name (tree, int, bool);
4640 extern const char *language_to_string (enum languages);
4641 extern const char *class_key_or_enum_as_string (tree);
4642 extern void print_instantiation_context (void);
4643 extern void maybe_warn_variadic_templates (void);
4644 extern void maybe_warn_cpp0x (const char *);
4645 extern bool pedwarn_cxx98 (location_t, int, const char *, ...) ATTRIBUTE_GCC_CXXDIAG(3,4);
4648 extern void init_exception_processing (void);
4649 extern tree expand_start_catch_block (tree);
4650 extern void expand_end_catch_block (void);
4651 extern tree build_exc_ptr (void);
4652 extern tree build_throw (tree);
4653 extern int nothrow_libfn_p (const_tree);
4654 extern void check_handlers (tree);
4655 extern void choose_personality_routine (enum languages);
4656 extern tree eh_type_info (tree);
4657 extern tree begin_eh_spec_block (void);
4658 extern void finish_eh_spec_block (tree, tree);
4659 extern tree build_eh_type_type (tree);
4662 extern tree cplus_expand_constant (tree);
4665 extern int is_friend (tree, tree);
4666 extern void make_friend_class (tree, tree, bool);
4667 extern void add_friend (tree, tree, bool);
4668 extern tree do_friend (tree, tree, tree, tree, enum overload_flags, bool);
4671 extern tree expand_member_init (tree);
4672 extern void emit_mem_initializers (tree);
4673 extern tree build_aggr_init (tree, tree, int,
4675 extern int is_class_type (tree, int);
4676 extern tree get_type_value (tree);
4677 extern tree build_zero_init (tree, tree, bool);
4678 extern tree build_value_init (tree);
4679 extern tree build_value_init_noctor (tree);
4680 extern tree build_offset_ref (tree, tree, bool);
4681 extern tree build_new (VEC(tree,gc) **, tree, tree,
4682 VEC(tree,gc) **, int,
4684 extern tree build_vec_init (tree, tree, tree, bool, int,
4686 extern tree build_delete (tree, tree,
4687 special_function_kind,
4689 extern void push_base_cleanups (void);
4690 extern tree build_vec_delete (tree, tree,
4691 special_function_kind, int);
4692 extern tree create_temporary_var (tree);
4693 extern void initialize_vtbl_ptrs (tree);
4694 extern tree build_java_class_ref (tree);
4695 extern tree integral_constant_value (tree);
4698 extern void cxx_dup_lang_specific_decl (tree);
4699 extern void yyungetc (int, int);
4701 extern tree unqualified_name_lookup_error (tree);
4702 extern tree unqualified_fn_lookup_error (tree);
4703 extern tree build_lang_decl (enum tree_code, tree, tree);
4704 extern void retrofit_lang_decl (tree);
4705 extern tree copy_decl (tree);
4706 extern tree copy_type (tree);
4707 extern tree cxx_make_type (enum tree_code);
4708 extern tree make_class_type (enum tree_code);
4709 extern bool cxx_init (void);
4710 extern void cxx_finish (void);
4711 extern bool in_main_input_context (void);
4714 extern void init_method (void);
4715 extern tree make_thunk (tree, bool, tree, tree);
4716 extern void finish_thunk (tree);
4717 extern void use_thunk (tree, bool);
4718 extern void synthesize_method (tree);
4719 extern tree lazily_declare_fn (special_function_kind,
4721 extern tree skip_artificial_parms_for (const_tree, tree);
4722 extern int num_artificial_parms_for (const_tree);
4723 extern tree make_alias_for (tree, tree);
4724 extern tree locate_copy (tree, void *);
4725 extern tree locate_ctor (tree, void *);
4726 extern tree locate_dtor (tree, void *);
4729 extern bool maybe_clone_body (tree);
4732 extern bool check_template_shadow (tree);
4733 extern tree get_innermost_template_args (tree, int);
4734 extern void maybe_begin_member_template_processing (tree);
4735 extern void maybe_end_member_template_processing (void);
4736 extern tree finish_member_template_decl (tree);
4737 extern void begin_template_parm_list (void);
4738 extern bool begin_specialization (void);
4739 extern void reset_specialization (void);
4740 extern void end_specialization (void);
4741 extern void begin_explicit_instantiation (void);
4742 extern void end_explicit_instantiation (void);
4743 extern tree check_explicit_specialization (tree, tree, int, int);
4744 extern tree make_auto (void);
4745 extern tree do_auto_deduction (tree, tree, tree);
4746 extern tree type_uses_auto (tree);
4747 extern void append_type_to_template_for_access_check (tree, tree, tree);
4748 extern tree splice_late_return_type (tree, tree);
4749 extern bool is_auto (const_tree);
4750 extern tree process_template_parm (tree, location_t, tree,
4752 extern tree end_template_parm_list (tree);
4753 extern void end_template_decl (void);
4754 extern bool check_default_tmpl_args (tree, tree, int, int, int);
4755 extern tree push_template_decl (tree);
4756 extern tree push_template_decl_real (tree, bool);
4757 extern bool redeclare_class_template (tree, tree);
4758 extern tree lookup_template_class (tree, tree, tree, tree,
4759 int, tsubst_flags_t);
4760 extern tree lookup_template_function (tree, tree);
4761 extern int uses_template_parms (tree);
4762 extern int uses_template_parms_level (tree, int);
4763 extern tree instantiate_class_template (tree);
4764 extern tree instantiate_template (tree, tree, tsubst_flags_t);
4765 extern int fn_type_unification (tree, tree, tree,
4766 const tree *, unsigned int,
4767 tree, unification_kind_t, int);
4768 extern void mark_decl_instantiated (tree, int);
4769 extern int more_specialized_fn (tree, tree, int);
4770 extern void do_decl_instantiation (tree, tree);
4771 extern void do_type_instantiation (tree, tree, tsubst_flags_t);
4772 extern bool always_instantiate_p (tree);
4773 extern tree instantiate_decl (tree, int, bool);
4774 extern int comp_template_parms (const_tree, const_tree);
4775 extern bool uses_parameter_packs (tree);
4776 extern bool template_parameter_pack_p (const_tree);
4777 extern bool function_parameter_pack_p (const_tree);
4778 extern bool function_parameter_expanded_from_pack_p (tree, tree);
4779 extern tree make_pack_expansion (tree);
4780 extern bool check_for_bare_parameter_packs (tree);
4781 extern tree get_template_info (const_tree);
4782 extern tree get_types_needing_access_check (tree);
4783 extern int template_class_depth (tree);
4784 extern int is_specialization_of (tree, tree);
4785 extern bool is_specialization_of_friend (tree, tree);
4786 extern tree get_pattern_parm (tree, tree);
4787 extern int comp_template_args (tree, tree);
4788 extern tree maybe_process_partial_specialization (tree);
4789 extern tree most_specialized_instantiation (tree);
4790 extern void print_candidates (tree);
4791 extern void instantiate_pending_templates (int);
4792 extern tree tsubst_default_argument (tree, tree, tree);
4793 extern tree tsubst (tree, tree, tsubst_flags_t, tree);
4794 extern tree tsubst_copy_and_build (tree, tree, tsubst_flags_t,
4796 extern tree most_general_template (tree);
4797 extern tree get_mostly_instantiated_function_type (tree);
4798 extern int problematic_instantiation_changed (void);
4799 extern void record_last_problematic_instantiation (void);
4800 extern struct tinst_level *current_instantiation(void);
4801 extern tree maybe_get_template_decl_from_type_decl (tree);
4802 extern int processing_template_parmlist;
4803 extern bool dependent_type_p (tree);
4804 extern bool dependent_scope_p (tree);
4805 extern bool any_dependent_template_arguments_p (const_tree);
4806 extern bool dependent_template_p (tree);
4807 extern bool dependent_template_id_p (tree, tree);
4808 extern bool type_dependent_expression_p (tree);
4809 extern bool any_type_dependent_arguments_p (const VEC(tree,gc) *);
4810 extern bool type_dependent_expression_p_push (tree);
4811 extern bool value_dependent_expression_p (tree);
4812 extern bool any_value_dependent_elements_p (const_tree);
4813 extern bool dependent_omp_for_p (tree, tree, tree, tree);
4814 extern tree resolve_typename_type (tree, bool);
4815 extern tree template_for_substitution (tree);
4816 extern tree build_non_dependent_expr (tree);
4817 extern void make_args_non_dependent (VEC(tree,gc) *);
4818 extern bool reregister_specialization (tree, tree, tree);
4819 extern tree fold_non_dependent_expr (tree);
4820 extern bool explicit_class_specialization_p (tree);
4821 extern struct tinst_level *outermost_tinst_level(void);
4822 extern bool parameter_of_template_p (tree, tree);
4823 extern void init_template_processing (void);
4824 bool template_template_parameter_p (const_tree);
4825 extern tree get_primary_template_innermost_parameters (const_tree);
4826 extern tree get_template_innermost_arguments (const_tree);
4827 extern tree get_template_argument_pack_elems (const_tree);
4828 extern tree get_function_template_decl (const_tree);
4830 extern void init_repo (void);
4831 extern int repo_emit_p (tree);
4832 extern bool repo_export_class_p (const_tree);
4833 extern void finish_repo (void);
4836 /* A vector of all tinfo decls that haven't been emitted yet. */
4837 extern GTY(()) VEC(tree,gc) *unemitted_tinfo_decls;
4839 extern void init_rtti_processing (void);
4840 extern tree build_typeid (tree);
4841 extern tree get_tinfo_decl (tree);
4842 extern tree get_typeid (tree);
4843 extern tree build_headof (tree);
4844 extern tree build_dynamic_cast (tree, tree, tsubst_flags_t);
4845 extern void emit_support_tinfos (void);
4846 extern bool emit_tinfo_decl (tree);
4849 extern bool accessible_base_p (tree, tree, bool);
4850 extern tree lookup_base (tree, tree, base_access,
4852 extern tree dcast_base_hint (tree, tree);
4853 extern int accessible_p (tree, tree, bool);
4854 extern tree lookup_field_1 (tree, tree, bool);
4855 extern tree lookup_field (tree, tree, int, bool);
4856 extern int lookup_fnfields_1 (tree, tree);
4857 extern int class_method_index_for_fn (tree, tree);
4858 extern tree lookup_fnfields (tree, tree, int);
4859 extern tree lookup_member (tree, tree, int, bool);
4860 extern int look_for_overrides (tree, tree);
4861 extern void get_pure_virtuals (tree);
4862 extern void maybe_suppress_debug_info (tree);
4863 extern void note_debug_info_needed (tree);
4864 extern void print_search_statistics (void);
4865 extern void reinit_search_statistics (void);
4866 extern tree current_scope (void);
4867 extern int at_function_scope_p (void);
4868 extern bool at_class_scope_p (void);
4869 extern bool at_namespace_scope_p (void);
4870 extern tree context_for_name_lookup (tree);
4871 extern tree lookup_conversions (tree);
4872 extern tree binfo_from_vbase (tree);
4873 extern tree binfo_for_vbase (tree, tree);
4874 extern tree look_for_overrides_here (tree, tree);
4875 #define dfs_skip_bases ((tree)1)
4876 extern tree dfs_walk_all (tree, tree (*) (tree, void *),
4877 tree (*) (tree, void *), void *);
4878 extern tree dfs_walk_once (tree, tree (*) (tree, void *),
4879 tree (*) (tree, void *), void *);
4880 extern tree binfo_via_virtual (tree, tree);
4881 extern tree build_baselink (tree, tree, tree, tree);
4882 extern tree adjust_result_of_qualified_name_lookup
4884 extern tree copied_binfo (tree, tree);
4885 extern tree original_binfo (tree, tree);
4886 extern int shared_member_p (tree);
4889 /* The representation of a deferred access check. */
4891 typedef struct GTY(()) deferred_access_check {
4892 /* The base class in which the declaration is referenced. */
4894 /* The declaration whose access must be checked. */
4896 /* The declaration that should be used in the error message. */
4898 } deferred_access_check;
4899 DEF_VEC_O(deferred_access_check);
4900 DEF_VEC_ALLOC_O(deferred_access_check,gc);
4902 /* in semantics.c */
4903 extern void push_deferring_access_checks (deferring_kind);
4904 extern void resume_deferring_access_checks (void);
4905 extern void stop_deferring_access_checks (void);
4906 extern void pop_deferring_access_checks (void);
4907 extern VEC (deferred_access_check,gc)* get_deferred_access_checks (void);
4908 extern void pop_to_parent_deferring_access_checks (void);
4909 extern void perform_access_checks (VEC (deferred_access_check,gc)*);
4910 extern void perform_deferred_access_checks (void);
4911 extern void perform_or_defer_access_check (tree, tree, tree);
4912 extern int stmts_are_full_exprs_p (void);
4913 extern void init_cp_semantics (void);
4914 extern tree do_poplevel (tree);
4915 extern void add_decl_expr (tree);
4916 extern tree finish_expr_stmt (tree);
4917 extern tree begin_if_stmt (void);
4918 extern void finish_if_stmt_cond (tree, tree);
4919 extern tree finish_then_clause (tree);
4920 extern void begin_else_clause (tree);
4921 extern void finish_else_clause (tree);
4922 extern void finish_if_stmt (tree);
4923 extern tree begin_while_stmt (void);
4924 extern void finish_while_stmt_cond (tree, tree);
4925 extern void finish_while_stmt (tree);
4926 extern tree begin_do_stmt (void);
4927 extern void finish_do_body (tree);
4928 extern void finish_do_stmt (tree, tree);
4929 extern tree finish_return_stmt (tree);
4930 extern tree begin_for_stmt (void);
4931 extern void finish_for_init_stmt (tree);
4932 extern void finish_for_cond (tree, tree);
4933 extern void finish_for_expr (tree, tree);
4934 extern void finish_for_stmt (tree);
4935 extern tree finish_break_stmt (void);
4936 extern tree finish_continue_stmt (void);
4937 extern tree begin_switch_stmt (void);
4938 extern void finish_switch_cond (tree, tree);
4939 extern void finish_switch_stmt (tree);
4940 extern tree finish_goto_stmt (tree);
4941 extern tree begin_try_block (void);
4942 extern void finish_try_block (tree);
4943 extern void finish_handler_sequence (tree);
4944 extern tree begin_function_try_block (tree *);
4945 extern void finish_function_try_block (tree);
4946 extern void finish_function_handler_sequence (tree, tree);
4947 extern void finish_cleanup_try_block (tree);
4948 extern tree begin_handler (void);
4949 extern void finish_handler_parms (tree, tree);
4950 extern void finish_handler (tree);
4951 extern void finish_cleanup (tree, tree);
4952 extern bool literal_type_p (tree);
4953 extern tree validate_constexpr_fundecl (tree);
4954 extern tree ensure_literal_type_for_constexpr_object (tree);
4961 extern tree begin_compound_stmt (unsigned int);
4963 extern void finish_compound_stmt (tree);
4964 extern tree finish_asm_stmt (int, tree, tree, tree, tree,
4966 extern tree finish_label_stmt (tree);
4967 extern void finish_label_decl (tree);
4968 extern tree finish_parenthesized_expr (tree);
4969 extern tree finish_non_static_data_member (tree, tree, tree);
4970 extern tree begin_stmt_expr (void);
4971 extern tree finish_stmt_expr_expr (tree, tree);
4972 extern tree finish_stmt_expr (tree, bool);
4973 extern tree stmt_expr_value_expr (tree);
4974 extern tree perform_koenig_lookup (tree, VEC(tree,gc) *);
4975 extern tree finish_call_expr (tree, VEC(tree,gc) **, bool,
4976 bool, tsubst_flags_t);
4977 extern tree finish_increment_expr (tree, enum tree_code);
4978 extern tree finish_this_expr (void);
4979 extern tree finish_pseudo_destructor_expr (tree, tree, tree);
4980 extern tree finish_unary_op_expr (enum tree_code, tree);
4981 extern tree finish_compound_literal (tree, tree);
4982 extern tree finish_fname (tree);
4983 extern void finish_translation_unit (void);
4984 extern tree finish_template_type_parm (tree, tree);
4985 extern tree finish_template_template_parm (tree, tree);
4986 extern tree begin_class_definition (tree, tree);
4987 extern void finish_template_decl (tree);
4988 extern tree finish_template_type (tree, tree, int);
4989 extern tree finish_base_specifier (tree, tree, bool);
4990 extern void finish_member_declaration (tree);
4991 extern void qualified_name_lookup_error (tree, tree, tree,
4993 extern tree finish_id_expression (tree, tree, tree,
4996 bool, bool, bool, bool,
4999 extern tree finish_typeof (tree);
5000 extern tree finish_offsetof (tree);
5001 extern void finish_decl_cleanup (tree, tree);
5002 extern void finish_eh_cleanup (tree);
5003 extern void emit_associated_thunks (tree);
5004 extern void finish_mem_initializers (tree);
5005 extern tree check_template_template_default_arg (tree);
5006 extern void expand_or_defer_fn (tree);
5007 extern void check_accessibility_of_qualified_id (tree, tree, tree);
5008 extern tree finish_qualified_id_expr (tree, tree, bool, bool,
5010 extern void simplify_aggr_init_expr (tree *);
5011 extern void finalize_nrv (tree *, tree, tree);
5012 extern void note_decl_for_pch (tree);
5013 extern tree finish_omp_clauses (tree);
5014 extern void finish_omp_threadprivate (tree);
5015 extern tree begin_omp_structured_block (void);
5016 extern tree finish_omp_structured_block (tree);
5017 extern tree begin_omp_parallel (void);
5018 extern tree finish_omp_parallel (tree, tree);
5019 extern tree begin_omp_task (void);
5020 extern tree finish_omp_task (tree, tree);
5021 extern tree finish_omp_for (location_t, tree, tree,
5022 tree, tree, tree, tree, tree);
5023 extern void finish_omp_atomic (enum tree_code, tree, tree);
5024 extern void finish_omp_barrier (void);
5025 extern void finish_omp_flush (void);
5026 extern void finish_omp_taskwait (void);
5027 extern bool cxx_omp_create_clause_info (tree, tree, bool, bool, bool);
5028 extern tree baselink_for_fns (tree);
5029 extern void finish_static_assert (tree, tree, location_t,
5031 extern tree describable_type (tree);
5032 extern tree finish_decltype_type (tree, bool);
5033 extern tree finish_trait_expr (enum cp_trait_kind, tree, tree);
5034 extern tree build_lambda_expr (void);
5035 extern tree build_lambda_object (tree);
5036 extern tree begin_lambda_type (tree);
5037 extern tree lambda_capture_field_type (tree);
5038 extern tree lambda_return_type (tree);
5039 extern tree lambda_function (tree);
5040 extern void apply_lambda_return_type (tree, tree);
5041 extern tree add_capture (tree, tree, tree, bool);
5042 extern tree add_default_capture (tree, tree, tree);
5043 extern tree lambda_expr_this_capture (tree);
5046 void cp_free_lang_data (tree t);
5047 extern tree force_target_expr (tree, tree);
5048 extern tree build_target_expr_with_type (tree, tree);
5049 extern void lang_check_failed (const char *, int,
5050 const char *) ATTRIBUTE_NORETURN;
5051 extern tree stabilize_expr (tree, tree *);
5052 extern void stabilize_call (tree, tree *);
5053 extern void stabilize_aggr_init (tree, tree *);
5054 extern bool stabilize_init (tree, tree *);
5055 extern tree add_stmt_to_compound (tree, tree);
5056 extern void init_tree (void);
5057 extern bool pod_type_p (const_tree);
5058 extern bool layout_pod_type_p (const_tree);
5059 extern bool std_layout_type_p (const_tree);
5060 extern bool trivial_type_p (const_tree);
5061 extern bool type_has_nontrivial_default_init (const_tree);
5062 extern bool type_has_nontrivial_copy_init (const_tree);
5063 extern bool class_tmpl_impl_spec_p (const_tree);
5064 extern int zero_init_p (const_tree);
5065 extern tree strip_typedefs (tree);
5066 extern tree copy_binfo (tree, tree, tree,
5068 extern int member_p (const_tree);
5069 extern cp_lvalue_kind real_lvalue_p (tree);
5070 extern bool lvalue_or_rvalue_with_address_p (const_tree);
5071 extern bool builtin_valid_in_constant_expr_p (const_tree);
5072 extern tree build_min (enum tree_code, tree, ...);
5073 extern tree build_min_nt (enum tree_code, ...);
5074 extern tree build_min_non_dep (enum tree_code, tree, ...);
5075 extern tree build_min_non_dep_call_vec (tree, tree, VEC(tree,gc) *);
5076 extern tree build_cplus_new (tree, tree);
5077 extern tree build_aggr_init_expr (tree, tree);
5078 extern tree get_target_expr (tree);
5079 extern tree build_cplus_array_type (tree, tree);
5080 extern tree build_array_of_n_type (tree, int);
5081 extern tree build_array_copy (tree);
5082 extern tree hash_tree_cons (tree, tree, tree);
5083 extern tree hash_tree_chain (tree, tree);
5084 extern tree build_qualified_name (tree, tree, tree, bool);
5085 extern int is_overloaded_fn (tree);
5086 extern tree get_first_fn (tree);
5087 extern tree ovl_cons (tree, tree);
5088 extern tree build_overload (tree, tree);
5089 extern const char *cxx_printable_name (tree, int);
5090 extern const char *cxx_printable_name_translate (tree, int);
5091 extern tree build_exception_variant (tree, tree);
5092 extern tree bind_template_template_parm (tree, tree);
5093 extern tree array_type_nelts_total (tree);
5094 extern tree array_type_nelts_top (tree);
5095 extern tree break_out_target_exprs (tree);
5096 extern tree get_type_decl (tree);
5097 extern tree decl_namespace_context (tree);
5098 extern bool decl_anon_ns_mem_p (const_tree);
5099 extern tree lvalue_type (tree);
5100 extern tree error_type (tree);
5101 extern int varargs_function_p (const_tree);
5102 extern bool really_overloaded_fn (tree);
5103 extern bool cp_tree_equal (tree, tree);
5104 extern tree no_linkage_check (tree, bool);
5105 extern void debug_binfo (tree);
5106 extern tree build_dummy_object (tree);
5107 extern tree maybe_dummy_object (tree, tree *);
5108 extern int is_dummy_object (const_tree);
5109 extern const struct attribute_spec cxx_attribute_table[];
5110 extern tree make_ptrmem_cst (tree, tree);
5111 extern tree cp_build_type_attribute_variant (tree, tree);
5112 extern tree cp_build_reference_type (tree, bool);
5113 extern tree move (tree);
5114 extern tree cp_build_qualified_type_real (tree, int, tsubst_flags_t);
5115 #define cp_build_qualified_type(TYPE, QUALS) \
5116 cp_build_qualified_type_real ((TYPE), (QUALS), tf_warning_or_error)
5117 extern special_function_kind special_function_p (const_tree);
5118 extern int count_trees (tree);
5119 extern int char_type_p (tree);
5120 extern void verify_stmt_tree (tree);
5121 extern linkage_kind decl_linkage (tree);
5122 extern tree cp_walk_subtrees (tree*, int*, walk_tree_fn,
5123 void*, struct pointer_set_t*);
5124 #define cp_walk_tree(a,b,c,d) \
5125 walk_tree_1 (a, b, c, d, cp_walk_subtrees)
5126 #define cp_walk_tree_without_duplicates(a,b,c) \
5127 walk_tree_without_duplicates_1 (a, b, c, cp_walk_subtrees)
5128 extern tree fold_if_not_in_template (tree);
5129 extern tree rvalue (tree);
5130 extern tree convert_bitfield_to_declared_type (tree);
5131 extern tree cp_save_expr (tree);
5132 extern bool cast_valid_in_integral_constant_expression_p (tree);
5133 extern bool cxx_type_hash_eq (const_tree, const_tree);
5135 extern void cxx_print_statistics (void);
5138 extern void cxx_print_xnode (FILE *, tree, int);
5139 extern void cxx_print_decl (FILE *, tree, int);
5140 extern void cxx_print_type (FILE *, tree, int);
5141 extern void cxx_print_identifier (FILE *, tree, int);
5142 extern void cxx_print_error_function (struct diagnostic_context *,
5144 struct diagnostic_info *);
5147 extern bool cxx_mark_addressable (tree);
5148 extern int string_conv_p (const_tree, const_tree, int);
5149 extern tree cp_truthvalue_conversion (tree);
5150 extern tree condition_conversion (tree);
5151 extern tree require_complete_type (tree);
5152 extern tree complete_type (tree);
5153 extern tree complete_type_or_else (tree, tree);
5154 extern int type_unknown_p (const_tree);
5155 extern bool comp_except_specs (const_tree, const_tree, bool);
5156 extern bool comptypes (tree, tree, int);
5157 extern bool compparms (const_tree, const_tree);
5158 extern int comp_cv_qualification (const_tree, const_tree);
5159 extern int comp_cv_qual_signature (tree, tree);
5160 extern tree cxx_sizeof_or_alignof_expr (tree, enum tree_code, bool);
5161 extern tree cxx_sizeof_or_alignof_type (tree, enum tree_code, bool);
5162 extern tree cxx_sizeof_nowarn (tree);
5163 extern tree is_bitfield_expr_with_lowered_type (const_tree);
5164 extern tree unlowered_expr_type (const_tree);
5165 extern tree decay_conversion (tree);
5166 extern tree build_class_member_access_expr (tree, tree, tree, bool,
5168 extern tree finish_class_member_access_expr (tree, tree, bool,
5170 extern tree build_x_indirect_ref (tree, const char *,
5172 extern tree cp_build_indirect_ref (tree, const char *,
5174 extern tree build_array_ref (location_t, tree, tree);
5175 extern tree get_member_function_from_ptrfunc (tree *, tree);
5176 extern tree cp_build_function_call (tree, tree, tsubst_flags_t);
5177 extern tree cp_build_function_call_vec (tree, VEC(tree,gc) **,
5179 extern tree build_x_binary_op (enum tree_code, tree,
5180 enum tree_code, tree,
5181 enum tree_code, bool *,
5183 extern tree build_x_array_ref (tree, tree, tsubst_flags_t);
5184 extern tree build_x_unary_op (enum tree_code, tree,
5186 extern tree cp_build_unary_op (enum tree_code, tree, int,
5188 extern tree unary_complex_lvalue (enum tree_code, tree);
5189 extern tree build_x_conditional_expr (tree, tree, tree,
5191 extern tree build_x_compound_expr_from_list (tree, const char *);
5192 extern tree build_x_compound_expr_from_vec (VEC(tree,gc) *, const char *);
5193 extern tree build_x_compound_expr (tree, tree, tsubst_flags_t);
5194 extern tree build_compound_expr (location_t, tree, tree);
5195 extern tree cp_build_compound_expr (tree, tree, tsubst_flags_t);
5196 extern tree build_static_cast (tree, tree, tsubst_flags_t);
5197 extern tree build_reinterpret_cast (tree, tree, tsubst_flags_t);
5198 extern tree build_const_cast (tree, tree, tsubst_flags_t);
5199 extern tree build_c_cast (location_t, tree, tree);
5200 extern tree cp_build_c_cast (tree, tree, tsubst_flags_t);
5201 extern tree build_x_modify_expr (tree, enum tree_code, tree,
5203 extern tree cp_build_modify_expr (tree, enum tree_code, tree,
5205 extern tree convert_for_initialization (tree, tree, tree, int,
5206 const char *, tree, int,
5208 extern int comp_ptr_ttypes (tree, tree);
5209 extern bool comp_ptr_ttypes_const (tree, tree);
5210 extern int ptr_reasonably_similar (const_tree, const_tree);
5211 extern tree build_ptrmemfunc (tree, tree, int, bool);
5212 extern int cp_type_quals (const_tree);
5213 extern bool cp_type_readonly (const_tree);
5214 extern bool cp_has_mutable_p (const_tree);
5215 extern bool at_least_as_qualified_p (const_tree, const_tree);
5216 extern void cp_apply_type_quals_to_decl (int, tree);
5217 extern tree build_ptrmemfunc1 (tree, tree, tree);
5218 extern void expand_ptrmemfunc_cst (tree, tree *, tree *);
5219 extern tree type_after_usual_arithmetic_conversions (tree, tree);
5220 extern tree common_pointer_type (tree, tree);
5221 extern tree composite_pointer_type (tree, tree, tree, tree,
5222 const char*, tsubst_flags_t);
5223 extern tree merge_types (tree, tree);
5224 extern tree check_return_expr (tree, bool *);
5225 extern tree cp_build_binary_op (location_t,
5226 enum tree_code, tree, tree,
5228 #define cxx_sizeof(T) cxx_sizeof_or_alignof_type (T, SIZEOF_EXPR, true)
5229 extern tree build_ptrmemfunc_access_expr (tree, tree);
5230 extern tree build_address (tree);
5231 extern tree build_typed_address (tree, tree);
5232 extern tree build_nop (tree, tree);
5233 extern tree non_reference (tree);
5234 extern tree lookup_anon_field (tree, tree);
5235 extern bool invalid_nonstatic_memfn_p (const_tree, tsubst_flags_t);
5236 extern tree convert_member_func_to_ptr (tree, tree);
5237 extern tree convert_ptrmem (tree, tree, bool, bool);
5238 extern int lvalue_or_else (tree, enum lvalue_use,
5240 extern void check_template_keyword (tree);
5243 extern void require_complete_eh_spec_types (tree, tree);
5244 extern void cxx_incomplete_type_diagnostic (const_tree, const_tree, diagnostic_t);
5245 #undef cxx_incomplete_type_error
5246 extern void cxx_incomplete_type_error (const_tree, const_tree);
5247 #define cxx_incomplete_type_error(V,T) \
5248 (cxx_incomplete_type_diagnostic ((V), (T), DK_ERROR))
5249 extern tree error_not_base_type (tree, tree);
5250 extern tree binfo_or_else (tree, tree);
5251 extern void readonly_error (tree, const char *);
5252 extern void complete_type_check_abstract (tree);
5253 extern int abstract_virtuals_error (tree, tree);
5255 extern tree store_init_value (tree, tree, int);
5256 extern void check_narrowing (tree, tree);
5257 extern tree digest_init (tree, tree);
5258 extern tree digest_init_flags (tree, tree, int);
5259 extern tree build_scoped_ref (tree, tree, tree *);
5260 extern tree build_x_arrow (tree);
5261 extern tree build_m_component_ref (tree, tree);
5262 extern tree build_functional_cast (tree, tree, tsubst_flags_t);
5263 extern tree add_exception_specifier (tree, tree, int);
5264 extern tree merge_exception_specifiers (tree, tree);
5267 extern void init_mangle (void);
5268 extern void mangle_decl (tree);
5269 extern const char *mangle_type_string_for_rtti (tree);
5270 extern tree mangle_typeinfo_for_type (tree);
5271 extern tree mangle_typeinfo_string_for_type (tree);
5272 extern tree mangle_vtbl_for_type (tree);
5273 extern tree mangle_vtt_for_type (tree);
5274 extern tree mangle_ctor_vtbl_for_type (tree, tree);
5275 extern tree mangle_thunk (tree, int, tree, tree);
5276 extern tree mangle_conv_op_name_for_type (tree);
5277 extern tree mangle_guard_variable (tree);
5278 extern tree mangle_ref_init_variable (tree);
5281 extern bool cp_dump_tree (void *, tree);
5283 /* In cp/cp-objcp-common.c. */
5285 extern alias_set_type cxx_get_alias_set (tree);
5286 extern bool cxx_warn_unused_global_decl (const_tree);
5287 extern tree cp_expr_size (const_tree);
5288 extern size_t cp_tree_size (enum tree_code);
5289 extern bool cp_var_mod_type_p (tree, tree);
5290 extern void cxx_initialize_diagnostics (struct diagnostic_context *);
5291 extern int cxx_types_compatible_p (tree, tree);
5292 extern void init_shadowed_var_for_decl (void);
5294 /* in cp-gimplify.c */
5295 extern int cp_gimplify_expr (tree *, gimple_seq *,
5297 extern void cp_genericize (tree);
5298 extern enum omp_clause_default_kind cxx_omp_predetermined_sharing (tree);
5299 extern tree cxx_omp_clause_default_ctor (tree, tree, tree);
5300 extern tree cxx_omp_clause_copy_ctor (tree, tree, tree);
5301 extern tree cxx_omp_clause_assign_op (tree, tree, tree);
5302 extern tree cxx_omp_clause_dtor (tree, tree);
5303 extern void cxx_omp_finish_clause (tree);
5304 extern bool cxx_omp_privatize_by_reference (const_tree);
5307 extern bool no_linkage_lambda_type_p (tree);
5311 #endif /* ! GCC_CP_TREE_H */