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 TARGET_EXPR_DIRECT_INIT_P (in TARGET_EXPR)
101 3: (TREE_REFERENCE_EXPR) (in NON_LVALUE_EXPR) (commented-out).
102 ICS_BAD_FLAG (in _CONV)
103 FN_TRY_BLOCK_P (in TRY_BLOCK)
104 IDENTIFIER_CTOR_OR_DTOR_P (in IDENTIFIER_NODE)
105 BIND_EXPR_BODY_BLOCK (in BIND_EXPR)
106 DECL_NON_TRIVIALLY_INITIALIZED_P (in VAR_DECL)
107 4: TREE_HAS_CONSTRUCTOR (in INDIRECT_REF, SAVE_EXPR, CONSTRUCTOR,
109 IDENTIFIER_TYPENAME_P (in IDENTIFIER_NODE)
110 DECL_TINFO_P (in VAR_DECL)
111 5: C_IS_RESERVED_WORD (in IDENTIFIER_NODE)
112 DECL_VTABLE_OR_VTT_P (in VAR_DECL)
113 6: IDENTIFIER_REPO_CHOSEN (in IDENTIFIER_NODE)
114 DECL_CONSTRUCTION_VTABLE_P (in VAR_DECL)
115 TYPE_MARKED_P (in _TYPE)
117 Usage of TYPE_LANG_FLAG_?:
119 1: TYPE_HAS_USER_CONSTRUCTOR.
122 4: TYPE_HAS_NONTRIVIAL_DESTRUCTOR
123 5: CLASS_TYPE_P (in RECORD_TYPE and UNION_TYPE)
124 SCOPED_ENUM_P (in ENUMERAL_TYPE)
125 6: TYPE_DEPENDENT_P_VALID
127 Usage of DECL_LANG_FLAG_?:
128 0: DECL_ERROR_REPORTED (in VAR_DECL).
129 DECL_TEMPLATE_PARM_P (in PARM_DECL, CONST_DECL, TYPE_DECL, or TEMPLATE_DECL)
130 DECL_LOCAL_FUNCTION_P (in FUNCTION_DECL)
131 DECL_MUTABLE_P (in FIELD_DECL)
132 DECL_DEPENDENT_P (in USING_DECL)
133 1: C_TYPEDEF_EXPLICITLY_SIGNED (in TYPE_DECL).
134 DECL_TEMPLATE_INSTANTIATED (in a VAR_DECL or a FUNCTION_DECL)
135 DECL_MEMBER_TEMPLATE_P (in TEMPLATE_DECL)
136 FUNCTION_PARAMETER_PACK_P (in PARM_DECL)
137 2: DECL_THIS_EXTERN (in VAR_DECL or FUNCTION_DECL).
138 DECL_IMPLICIT_TYPEDEF_P (in a TYPE_DECL)
140 4: DECL_C_BIT_FIELD (in a FIELD_DECL)
141 DECL_ANON_UNION_VAR_P (in a VAR_DECL)
142 DECL_SELF_REFERENCE_P (in a TYPE_DECL)
143 DECL_INVALID_OVERRIDER_P (in a FUNCTION_DECL)
144 5: DECL_INTERFACE_KNOWN.
145 6: DECL_THIS_STATIC (in VAR_DECL or FUNCTION_DECL).
146 DECL_FIELD_IS_BASE (in FIELD_DECL)
147 7: DECL_DEAD_FOR_LOCAL (in VAR_DECL).
148 DECL_THUNK_P (in a member FUNCTION_DECL)
149 DECL_NORMAL_CAPTURE_P (in FIELD_DECL)
150 8: DECL_DECLARED_CONSTEXPR_P (in VAR_DECL, FUNCTION_DECL)
152 Usage of language-independent fields in a language-dependent manner:
155 This field is used by TYPENAME_TYPEs, TEMPLATE_TYPE_PARMs, and so
156 forth as a substitute for the mark bits provided in `lang_type'.
157 At present, only the six low-order bits are used.
160 For an ENUMERAL_TYPE, this is ENUM_TEMPLATE_INFO.
161 For a FUNCTION_TYPE or METHOD_TYPE, this is TYPE_RAISES_EXCEPTIONS
164 For a binfo, this is a TREE_LIST. There is an entry for each
165 virtual function declared either in BINFO or its direct and
166 indirect primary bases.
168 The BV_DELTA of each node gives the amount by which to adjust the
169 `this' pointer when calling the function. If the method is an
170 overridden version of a base class method, then it is assumed
171 that, prior to adjustment, the this pointer points to an object
174 The BV_VCALL_INDEX of each node, if non-NULL, gives the vtable
175 index of the vcall offset for this entry.
177 The BV_FN is the declaration for the virtual function itself.
180 This is an expression with POINTER_TYPE that gives the value
181 to which the vptr should be initialized. Use get_vtbl_decl_for_binfo
182 to extract the VAR_DECL for the complete vtable.
185 This field is NULL for a non-virtual function. For a virtual
186 function, it is eventually set to an INTEGER_CST indicating the
187 index in the vtable at which this function can be found. When
188 a virtual function is declared, but before it is known what
189 function is overridden, this field is the error_mark_node.
191 Temporarily, it may be set to a TREE_LIST whose TREE_VALUE is
192 the virtual function this one overrides, and whose TREE_CHAIN is
193 the old DECL_VINDEX. */
195 /* Language-specific tree checkers. */
197 #define VAR_OR_FUNCTION_DECL_CHECK(NODE) \
198 TREE_CHECK2(NODE,VAR_DECL,FUNCTION_DECL)
200 #define VAR_FUNCTION_OR_PARM_DECL_CHECK(NODE) \
201 TREE_CHECK3(NODE,VAR_DECL,FUNCTION_DECL,PARM_DECL)
203 #define VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK(NODE) \
204 TREE_CHECK4(NODE,VAR_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL)
206 #define BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK(NODE) \
207 TREE_CHECK(NODE,BOUND_TEMPLATE_TEMPLATE_PARM)
209 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
210 #define THUNK_FUNCTION_CHECK(NODE) __extension__ \
211 ({ __typeof (NODE) const __t = (NODE); \
212 if (TREE_CODE (__t) != FUNCTION_DECL || !__t->decl_common.lang_specific \
213 || !__t->decl_common.lang_specific->u.fn.thunk_p) \
214 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, 0); \
217 #define THUNK_FUNCTION_CHECK(NODE) (NODE)
220 /* Language-dependent contents of an identifier. */
222 struct GTY(()) lang_identifier {
223 struct c_common_identifier c_common;
224 cxx_binding *namespace_bindings;
225 cxx_binding *bindings;
226 tree class_template_info;
230 /* In an IDENTIFIER_NODE, nonzero if this identifier is actually a
231 keyword. C_RID_CODE (node) is then the RID_* value of the keyword,
232 and C_RID_YYCODE is the token number wanted by Yacc. */
234 #define C_IS_RESERVED_WORD(ID) TREE_LANG_FLAG_5 (ID)
236 #define LANG_IDENTIFIER_CAST(NODE) \
237 ((struct lang_identifier*)IDENTIFIER_NODE_CHECK (NODE))
239 struct GTY(()) template_parm_index_s {
240 struct tree_common common;
246 typedef struct template_parm_index_s template_parm_index;
248 struct GTY(()) ptrmem_cst {
249 struct tree_common common;
250 /* This isn't used, but the middle-end expects all constants to have
255 typedef struct ptrmem_cst * ptrmem_cst_t;
257 #define IDENTIFIER_GLOBAL_VALUE(NODE) \
258 namespace_binding ((NODE), global_namespace)
259 #define SET_IDENTIFIER_GLOBAL_VALUE(NODE, VAL) \
260 set_namespace_binding ((NODE), global_namespace, (VAL))
261 #define IDENTIFIER_NAMESPACE_VALUE(NODE) \
262 namespace_binding ((NODE), current_namespace)
263 #define SET_IDENTIFIER_NAMESPACE_VALUE(NODE, VAL) \
264 set_namespace_binding ((NODE), current_namespace, (VAL))
266 #define CLEANUP_P(NODE) TREE_LANG_FLAG_0 (TRY_BLOCK_CHECK (NODE))
268 #define BIND_EXPR_TRY_BLOCK(NODE) \
269 TREE_LANG_FLAG_0 (BIND_EXPR_CHECK (NODE))
271 /* Used to mark the block around the member initializers and cleanups. */
272 #define BIND_EXPR_BODY_BLOCK(NODE) \
273 TREE_LANG_FLAG_3 (BIND_EXPR_CHECK (NODE))
274 #define FUNCTION_NEEDS_BODY_BLOCK(NODE) \
275 (DECL_CONSTRUCTOR_P (NODE) || DECL_DESTRUCTOR_P (NODE))
277 #define STATEMENT_LIST_NO_SCOPE(NODE) \
278 TREE_LANG_FLAG_0 (STATEMENT_LIST_CHECK (NODE))
279 #define STATEMENT_LIST_TRY_BLOCK(NODE) \
280 TREE_LANG_FLAG_2 (STATEMENT_LIST_CHECK (NODE))
282 /* Nonzero if this statement should be considered a full-expression,
283 i.e., if temporaries created during this statement should have
284 their destructors run at the end of this statement. */
285 #define STMT_IS_FULL_EXPR_P(NODE) TREE_LANG_FLAG_1 ((NODE))
287 /* Marks the result of a statement expression. */
288 #define EXPR_STMT_STMT_EXPR_RESULT(NODE) \
289 TREE_LANG_FLAG_0 (EXPR_STMT_CHECK (NODE))
291 /* Nonzero if this statement-expression does not have an associated scope. */
292 #define STMT_EXPR_NO_SCOPE(NODE) \
293 TREE_LANG_FLAG_0 (STMT_EXPR_CHECK (NODE))
295 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, in the usual
297 #define same_type_p(TYPE1, TYPE2) \
298 comptypes ((TYPE1), (TYPE2), COMPARE_STRICT)
300 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, ignoring
301 top-level qualifiers. */
302 #define same_type_ignoring_top_level_qualifiers_p(TYPE1, TYPE2) \
303 same_type_p (TYPE_MAIN_VARIANT (TYPE1), TYPE_MAIN_VARIANT (TYPE2))
305 /* Nonzero if we are presently building a statement tree, rather
306 than expanding each statement as we encounter it. */
307 #define building_stmt_tree() (cur_stmt_list != NULL_TREE)
309 /* Returns nonzero iff NODE is a declaration for the global function
311 #define DECL_MAIN_P(NODE) \
312 (DECL_EXTERN_C_FUNCTION_P (NODE) \
313 && DECL_NAME (NODE) != NULL_TREE \
314 && MAIN_NAME_P (DECL_NAME (NODE)) \
317 /* The overloaded FUNCTION_DECL. */
318 #define OVL_FUNCTION(NODE) \
319 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->function)
320 #define OVL_CHAIN(NODE) TREE_CHAIN (NODE)
321 /* Polymorphic access to FUNCTION and CHAIN. */
322 #define OVL_CURRENT(NODE) \
323 ((TREE_CODE (NODE) == OVERLOAD) ? OVL_FUNCTION (NODE) : (NODE))
324 #define OVL_NEXT(NODE) \
325 ((TREE_CODE (NODE) == OVERLOAD) ? TREE_CHAIN (NODE) : NULL_TREE)
326 /* If set, this was imported in a using declaration.
327 This is not to confuse with being used somewhere, which
328 is not important for this node. */
329 #define OVL_USED(NODE) TREE_USED (NODE)
331 struct GTY(()) tree_overload {
332 struct tree_common common;
336 /* Returns true iff NODE is a BASELINK. */
337 #define BASELINK_P(NODE) \
338 (TREE_CODE (NODE) == BASELINK)
339 /* The BINFO indicating the base from which the BASELINK_FUNCTIONS came. */
340 #define BASELINK_BINFO(NODE) \
341 (((struct tree_baselink*) BASELINK_CHECK (NODE))->binfo)
342 /* The functions referred to by the BASELINK; either a FUNCTION_DECL,
343 a TEMPLATE_DECL, an OVERLOAD, or a TEMPLATE_ID_EXPR. */
344 #define BASELINK_FUNCTIONS(NODE) \
345 (((struct tree_baselink*) BASELINK_CHECK (NODE))->functions)
346 /* The BINFO in which the search for the functions indicated by this baselink
347 began. This base is used to determine the accessibility of functions
348 selected by overload resolution. */
349 #define BASELINK_ACCESS_BINFO(NODE) \
350 (((struct tree_baselink*) BASELINK_CHECK (NODE))->access_binfo)
351 /* For a type-conversion operator, the BASELINK_OPTYPE indicates the type
352 to which the conversion should occur. This value is important if
353 the BASELINK_FUNCTIONS include a template conversion operator --
354 the BASELINK_OPTYPE can be used to determine what type the user
356 #define BASELINK_OPTYPE(NODE) \
357 (TREE_CHAIN (BASELINK_CHECK (NODE)))
358 /* Nonzero if this baselink was from a qualified lookup. */
359 #define BASELINK_QUALIFIED_P(NODE) \
360 TREE_LANG_FLAG_0 (BASELINK_CHECK (NODE))
362 struct GTY(()) tree_baselink {
363 struct tree_common common;
369 /* The different kinds of ids that we encounter. */
371 typedef enum cp_id_kind
373 /* Not an id at all. */
375 /* An unqualified-id that is not a template-id. */
376 CP_ID_KIND_UNQUALIFIED,
377 /* An unqualified-id that is a dependent name. */
378 CP_ID_KIND_UNQUALIFIED_DEPENDENT,
379 /* An unqualified template-id. */
380 CP_ID_KIND_TEMPLATE_ID,
381 /* A qualified-id. */
386 /* The various kinds of C++0x warnings we encounter. */
388 typedef enum cpp0x_warn_str
390 /* extended initializer lists */
391 CPP0X_INITIALIZER_LISTS,
392 /* explicit conversion operators */
393 CPP0X_EXPLICIT_CONVERSION,
394 /* variadic templates */
395 CPP0X_VARIADIC_TEMPLATES,
396 /* lambda expressions */
402 /* defaulted and deleted functions */
403 CPP0X_DEFAULTED_DELETED
407 /* Macros for access to language-specific slots in an identifier. */
409 #define IDENTIFIER_NAMESPACE_BINDINGS(NODE) \
410 (LANG_IDENTIFIER_CAST (NODE)->namespace_bindings)
411 #define IDENTIFIER_TEMPLATE(NODE) \
412 (LANG_IDENTIFIER_CAST (NODE)->class_template_info)
414 /* The IDENTIFIER_BINDING is the innermost cxx_binding for the
415 identifier. It's PREVIOUS is the next outermost binding. Each
416 VALUE field is a DECL for the associated declaration. Thus,
417 name lookup consists simply of pulling off the node at the front
418 of the list (modulo oddities for looking up the names of types,
419 and such.) You can use SCOPE field to determine the scope
420 that bound the name. */
421 #define IDENTIFIER_BINDING(NODE) \
422 (LANG_IDENTIFIER_CAST (NODE)->bindings)
424 /* TREE_TYPE only indicates on local and class scope the current
425 type. For namespace scope, the presence of a type in any namespace
426 is indicated with global_type_node, and the real type behind must
427 be found through lookup. */
428 #define IDENTIFIER_TYPE_VALUE(NODE) identifier_type_value (NODE)
429 #define REAL_IDENTIFIER_TYPE_VALUE(NODE) TREE_TYPE (NODE)
430 #define SET_IDENTIFIER_TYPE_VALUE(NODE,TYPE) (TREE_TYPE (NODE) = (TYPE))
431 #define IDENTIFIER_HAS_TYPE_VALUE(NODE) (IDENTIFIER_TYPE_VALUE (NODE) ? 1 : 0)
433 #define IDENTIFIER_LABEL_VALUE(NODE) \
434 (LANG_IDENTIFIER_CAST (NODE)->label_value)
435 #define SET_IDENTIFIER_LABEL_VALUE(NODE, VALUE) \
436 IDENTIFIER_LABEL_VALUE (NODE) = (VALUE)
438 /* Nonzero if this identifier is used as a virtual function name somewhere
439 (optimizes searches). */
440 #define IDENTIFIER_VIRTUAL_P(NODE) TREE_LANG_FLAG_1 (NODE)
442 /* Nonzero if this identifier is the prefix for a mangled C++ operator
444 #define IDENTIFIER_OPNAME_P(NODE) TREE_LANG_FLAG_2 (NODE)
446 /* Nonzero if this identifier is the name of a type-conversion
448 #define IDENTIFIER_TYPENAME_P(NODE) \
449 TREE_LANG_FLAG_4 (NODE)
451 /* Nonzero if this identifier is the name of a constructor or
453 #define IDENTIFIER_CTOR_OR_DTOR_P(NODE) \
454 TREE_LANG_FLAG_3 (NODE)
456 /* True iff NAME is the DECL_ASSEMBLER_NAME for an entity with vague
457 linkage which the prelinker has assigned to this translation
459 #define IDENTIFIER_REPO_CHOSEN(NAME) \
460 (TREE_LANG_FLAG_6 (NAME))
462 /* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */
463 #define C_TYPE_FIELDS_READONLY(TYPE) \
464 (LANG_TYPE_CLASS_CHECK (TYPE)->fields_readonly)
466 /* The tokens stored in the default argument. */
468 #define DEFARG_TOKENS(NODE) \
469 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->tokens)
470 #define DEFARG_INSTANTIATIONS(NODE) \
471 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->instantiations)
473 struct GTY (()) tree_default_arg {
474 struct tree_common common;
475 struct cp_token_cache *tokens;
476 VEC(tree,gc) *instantiations;
479 /* The condition associated with the static assertion. This must be
480 an integral constant expression. */
481 #define STATIC_ASSERT_CONDITION(NODE) \
482 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->condition)
484 /* The message associated with the static assertion. This must be a
485 string constant, which will be emitted as an error message when the
486 static assert condition is false. */
487 #define STATIC_ASSERT_MESSAGE(NODE) \
488 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->message)
490 /* Source location information for a static assertion. */
491 #define STATIC_ASSERT_SOURCE_LOCATION(NODE) \
492 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->location)
494 struct GTY (()) tree_static_assert {
495 struct tree_common common;
501 struct GTY (()) tree_argument_pack_select {
502 struct tree_common common;
507 /* The different kinds of traits that we encounter. */
509 typedef enum cp_trait_kind
511 CPTK_HAS_NOTHROW_ASSIGN,
512 CPTK_HAS_NOTHROW_CONSTRUCTOR,
513 CPTK_HAS_NOTHROW_COPY,
514 CPTK_HAS_TRIVIAL_ASSIGN,
515 CPTK_HAS_TRIVIAL_CONSTRUCTOR,
516 CPTK_HAS_TRIVIAL_COPY,
517 CPTK_HAS_TRIVIAL_DESTRUCTOR,
518 CPTK_HAS_VIRTUAL_DESTRUCTOR,
522 CPTK_IS_CONVERTIBLE_TO,
532 /* The types that we are processing. */
533 #define TRAIT_EXPR_TYPE1(NODE) \
534 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type1)
536 #define TRAIT_EXPR_TYPE2(NODE) \
537 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type2)
539 /* The specific trait that we are processing. */
540 #define TRAIT_EXPR_KIND(NODE) \
541 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->kind)
543 struct GTY (()) tree_trait_expr {
544 struct tree_common common;
547 enum cp_trait_kind kind;
550 /* Based off of TYPE_ANONYMOUS_P. */
551 #define LAMBDA_TYPE_P(NODE) \
552 (CLASS_TYPE_P (NODE) && LAMBDANAME_P (TYPE_LINKAGE_IDENTIFIER (NODE)))
554 /* Test if FUNCTION_DECL is a lambda function. */
555 #define LAMBDA_FUNCTION_P(FNDECL) \
556 (DECL_OVERLOADED_OPERATOR_P (FNDECL) == CALL_EXPR \
557 && LAMBDA_TYPE_P (CP_DECL_CONTEXT (FNDECL)))
559 enum cp_lambda_default_capture_mode_type {
565 /* The method of default capture, if any. */
566 #define LAMBDA_EXPR_DEFAULT_CAPTURE_MODE(NODE) \
567 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->default_capture_mode)
569 /* The capture-list, including `this'. Each capture is stored as a FIELD_DECL
570 * so that the name, type, and field are all together, whether or not it has
571 * been added to the lambda's class type.
573 TREE_PURPOSE: The FIELD_DECL for this capture.
574 TREE_VALUE: The initializer. This is part of a GNU extension. */
575 #define LAMBDA_EXPR_CAPTURE_LIST(NODE) \
576 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->capture_list)
578 /* The node in the capture-list that holds the 'this' capture. */
579 #define LAMBDA_EXPR_THIS_CAPTURE(NODE) \
580 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->this_capture)
582 /* Predicate tracking whether `this' is in the effective capture set. */
583 #define LAMBDA_EXPR_CAPTURES_THIS_P(NODE) \
584 LAMBDA_EXPR_THIS_CAPTURE(NODE)
586 /* Predicate tracking whether the lambda was declared 'mutable'. */
587 #define LAMBDA_EXPR_MUTABLE_P(NODE) \
588 TREE_LANG_FLAG_1 (LAMBDA_EXPR_CHECK (NODE))
590 /* True iff we should try to deduce the lambda return type from any return
592 #define LAMBDA_EXPR_DEDUCE_RETURN_TYPE_P(NODE) \
593 TREE_LANG_FLAG_2 (LAMBDA_EXPR_CHECK (NODE))
595 /* The return type in the expression.
596 * NULL_TREE indicates that none was specified. */
597 #define LAMBDA_EXPR_RETURN_TYPE(NODE) \
598 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->return_type)
600 /* The source location of the lambda. */
601 #define LAMBDA_EXPR_LOCATION(NODE) \
602 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->locus)
604 /* The mangling scope for the lambda: FUNCTION_DECL, PARM_DECL, VAR_DECL,
605 FIELD_DECL or NULL_TREE. If this is NULL_TREE, we have no linkage. */
606 #define LAMBDA_EXPR_EXTRA_SCOPE(NODE) \
607 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->extra_scope)
609 /* If EXTRA_SCOPE, this is the number of the lambda within that scope. */
610 #define LAMBDA_EXPR_DISCRIMINATOR(NODE) \
611 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->discriminator)
613 struct GTY (()) tree_lambda_expr
615 struct tree_common common;
617 enum cp_lambda_default_capture_mode_type default_capture_mode;
625 enum cp_tree_node_structure_enum {
636 TS_CP_ARGUMENT_PACK_SELECT,
642 /* The resulting tree type. */
643 union GTY((desc ("cp_tree_node_structure (&%h)"),
644 chain_next ("(union lang_tree_node *)TREE_CHAIN (&%h.generic)"))) lang_tree_node {
645 union tree_node GTY ((tag ("TS_CP_GENERIC"),
646 desc ("tree_node_structure (&%h)"))) generic;
647 struct template_parm_index_s GTY ((tag ("TS_CP_TPI"))) tpi;
648 struct ptrmem_cst GTY ((tag ("TS_CP_PTRMEM"))) ptrmem;
649 struct tree_overload GTY ((tag ("TS_CP_OVERLOAD"))) overload;
650 struct tree_baselink GTY ((tag ("TS_CP_BASELINK"))) baselink;
651 struct tree_default_arg GTY ((tag ("TS_CP_DEFAULT_ARG"))) default_arg;
652 struct lang_identifier GTY ((tag ("TS_CP_IDENTIFIER"))) identifier;
653 struct tree_static_assert GTY ((tag ("TS_CP_STATIC_ASSERT")))
655 struct tree_argument_pack_select GTY ((tag ("TS_CP_ARGUMENT_PACK_SELECT")))
656 argument_pack_select;
657 struct tree_trait_expr GTY ((tag ("TS_CP_TRAIT_EXPR")))
659 struct tree_lambda_expr GTY ((tag ("TS_CP_LAMBDA_EXPR")))
667 CPTI_JAVA_SHORT_TYPE,
670 CPTI_JAVA_FLOAT_TYPE,
671 CPTI_JAVA_DOUBLE_TYPE,
673 CPTI_JAVA_BOOLEAN_TYPE,
676 CPTI_VTABLE_ENTRY_TYPE,
678 CPTI_VTABLE_INDEX_TYPE,
689 CPTI_CONST_TYPE_INFO_TYPE,
690 CPTI_TYPE_INFO_PTR_TYPE,
692 CPTI_GLOBAL_DELETE_FNDECL,
695 CPTI_CTOR_IDENTIFIER,
696 CPTI_COMPLETE_CTOR_IDENTIFIER,
697 CPTI_BASE_CTOR_IDENTIFIER,
698 CPTI_DTOR_IDENTIFIER,
699 CPTI_COMPLETE_DTOR_IDENTIFIER,
700 CPTI_BASE_DTOR_IDENTIFIER,
701 CPTI_DELETING_DTOR_IDENTIFIER,
702 CPTI_DELTA_IDENTIFIER,
703 CPTI_IN_CHARGE_IDENTIFIER,
704 CPTI_VTT_PARM_IDENTIFIER,
705 CPTI_NELTS_IDENTIFIER,
706 CPTI_THIS_IDENTIFIER,
708 CPTI_VPTR_IDENTIFIER,
712 CPTI_LANG_NAME_CPLUSPLUS,
715 CPTI_EMPTY_EXCEPT_SPEC,
718 CPTI_CALL_UNEXPECTED,
719 CPTI_ATEXIT_FN_PTR_TYPE,
729 extern GTY(()) tree cp_global_trees[CPTI_MAX];
731 #define java_byte_type_node cp_global_trees[CPTI_JAVA_BYTE_TYPE]
732 #define java_short_type_node cp_global_trees[CPTI_JAVA_SHORT_TYPE]
733 #define java_int_type_node cp_global_trees[CPTI_JAVA_INT_TYPE]
734 #define java_long_type_node cp_global_trees[CPTI_JAVA_LONG_TYPE]
735 #define java_float_type_node cp_global_trees[CPTI_JAVA_FLOAT_TYPE]
736 #define java_double_type_node cp_global_trees[CPTI_JAVA_DOUBLE_TYPE]
737 #define java_char_type_node cp_global_trees[CPTI_JAVA_CHAR_TYPE]
738 #define java_boolean_type_node cp_global_trees[CPTI_JAVA_BOOLEAN_TYPE]
740 #define wchar_decl_node cp_global_trees[CPTI_WCHAR_DECL]
741 #define vtable_entry_type cp_global_trees[CPTI_VTABLE_ENTRY_TYPE]
742 /* The type used to represent an offset by which to adjust the `this'
743 pointer in pointer-to-member types. */
744 #define delta_type_node cp_global_trees[CPTI_DELTA_TYPE]
745 /* The type used to represent an index into the vtable. */
746 #define vtable_index_type cp_global_trees[CPTI_VTABLE_INDEX_TYPE]
748 #define class_type_node cp_global_trees[CPTI_CLASS_TYPE]
749 #define unknown_type_node cp_global_trees[CPTI_UNKNOWN_TYPE]
750 #define init_list_type_node cp_global_trees[CPTI_INIT_LIST_TYPE]
751 #define vtbl_type_node cp_global_trees[CPTI_VTBL_TYPE]
752 #define vtbl_ptr_type_node cp_global_trees[CPTI_VTBL_PTR_TYPE]
753 #define std_node cp_global_trees[CPTI_STD]
754 #define abi_node cp_global_trees[CPTI_ABI]
755 #define const_type_info_type_node cp_global_trees[CPTI_CONST_TYPE_INFO_TYPE]
756 #define type_info_ptr_type cp_global_trees[CPTI_TYPE_INFO_PTR_TYPE]
757 #define abort_fndecl cp_global_trees[CPTI_ABORT_FNDECL]
758 #define global_delete_fndecl cp_global_trees[CPTI_GLOBAL_DELETE_FNDECL]
759 #define current_aggr cp_global_trees[CPTI_AGGR_TAG]
761 /* We cache these tree nodes so as to call get_identifier less
764 /* The name of a constructor that takes an in-charge parameter to
765 decide whether or not to construct virtual base classes. */
766 #define ctor_identifier cp_global_trees[CPTI_CTOR_IDENTIFIER]
767 /* The name of a constructor that constructs virtual base classes. */
768 #define complete_ctor_identifier cp_global_trees[CPTI_COMPLETE_CTOR_IDENTIFIER]
769 /* The name of a constructor that does not construct virtual base classes. */
770 #define base_ctor_identifier cp_global_trees[CPTI_BASE_CTOR_IDENTIFIER]
771 /* The name of a destructor that takes an in-charge parameter to
772 decide whether or not to destroy virtual base classes and whether
773 or not to delete the object. */
774 #define dtor_identifier cp_global_trees[CPTI_DTOR_IDENTIFIER]
775 /* The name of a destructor that destroys virtual base classes. */
776 #define complete_dtor_identifier cp_global_trees[CPTI_COMPLETE_DTOR_IDENTIFIER]
777 /* The name of a destructor that does not destroy virtual base
779 #define base_dtor_identifier cp_global_trees[CPTI_BASE_DTOR_IDENTIFIER]
780 /* The name of a destructor that destroys virtual base classes, and
781 then deletes the entire object. */
782 #define deleting_dtor_identifier cp_global_trees[CPTI_DELETING_DTOR_IDENTIFIER]
783 #define delta_identifier cp_global_trees[CPTI_DELTA_IDENTIFIER]
784 #define in_charge_identifier cp_global_trees[CPTI_IN_CHARGE_IDENTIFIER]
785 /* The name of the parameter that contains a pointer to the VTT to use
786 for this subobject constructor or destructor. */
787 #define vtt_parm_identifier cp_global_trees[CPTI_VTT_PARM_IDENTIFIER]
788 #define nelts_identifier cp_global_trees[CPTI_NELTS_IDENTIFIER]
789 #define this_identifier cp_global_trees[CPTI_THIS_IDENTIFIER]
790 #define pfn_identifier cp_global_trees[CPTI_PFN_IDENTIFIER]
791 #define vptr_identifier cp_global_trees[CPTI_VPTR_IDENTIFIER]
792 /* The name of the std namespace. */
793 #define std_identifier cp_global_trees[CPTI_STD_IDENTIFIER]
794 #define lang_name_c cp_global_trees[CPTI_LANG_NAME_C]
795 #define lang_name_cplusplus cp_global_trees[CPTI_LANG_NAME_CPLUSPLUS]
796 #define lang_name_java cp_global_trees[CPTI_LANG_NAME_JAVA]
798 /* Exception specifier used for throw(). */
799 #define empty_except_spec cp_global_trees[CPTI_EMPTY_EXCEPT_SPEC]
801 /* If non-NULL, a POINTER_TYPE equivalent to (java::lang::Class*). */
802 #define jclass_node cp_global_trees[CPTI_JCLASS]
804 /* The declaration for `std::terminate'. */
805 #define terminate_node cp_global_trees[CPTI_TERMINATE]
807 /* The declaration for "__cxa_call_unexpected". */
808 #define call_unexpected_node cp_global_trees[CPTI_CALL_UNEXPECTED]
810 /* The type of the function-pointer argument to "__cxa_atexit" (or
811 "std::atexit", if "__cxa_atexit" is not being used). */
812 #define atexit_fn_ptr_type_node cp_global_trees[CPTI_ATEXIT_FN_PTR_TYPE]
814 /* A pointer to `std::atexit'. */
815 #define atexit_node cp_global_trees[CPTI_ATEXIT]
817 /* A pointer to `__dso_handle'. */
818 #define dso_handle_node cp_global_trees[CPTI_DSO_HANDLE]
820 /* The declaration of the dynamic_cast runtime. */
821 #define dynamic_cast_node cp_global_trees[CPTI_DCAST]
823 /* The type of a destructor. */
824 #define cleanup_type cp_global_trees[CPTI_CLEANUP_TYPE]
826 /* The type of the vtt parameter passed to subobject constructors and
828 #define vtt_parm_type cp_global_trees[CPTI_VTT_PARM_TYPE]
830 /* A TREE_LIST of the dynamic classes whose vtables may have to be
831 emitted in this translation unit. */
833 #define keyed_classes cp_global_trees[CPTI_KEYED_CLASSES]
835 /* Node to indicate default access. This must be distinct from the
836 access nodes in tree.h. */
838 #define access_default_node null_node
842 struct GTY(()) saved_scope {
843 VEC(cxx_saved_binding,gc) *old_bindings;
848 tree access_specifier;
850 VEC(tree,gc) *lang_base;
853 struct cp_binding_level *x_previous_class_level;
856 int x_processing_template_decl;
857 int x_processing_specialization;
858 BOOL_BITFIELD x_processing_explicit_instantiation : 1;
859 BOOL_BITFIELD need_pop_function_context : 1;
861 int unevaluated_operand;
862 int inhibit_evaluation_warnings;
864 struct stmt_tree_s x_stmt_tree;
866 struct cp_binding_level *class_bindings;
867 struct cp_binding_level *bindings;
869 struct saved_scope *prev;
872 /* The current open namespace. */
874 #define current_namespace scope_chain->old_namespace
876 /* The stack for namespaces of current declarations. */
878 #define decl_namespace_list scope_chain->decl_ns_list
880 /* IDENTIFIER_NODE: name of current class */
882 #define current_class_name scope_chain->class_name
884 /* _TYPE: the type of the current class */
886 #define current_class_type scope_chain->class_type
888 /* When parsing a class definition, the access specifier most recently
889 given by the user, or, if no access specifier was given, the
890 default value appropriate for the kind of class (i.e., struct,
893 #define current_access_specifier scope_chain->access_specifier
895 /* Pointer to the top of the language name stack. */
897 #define current_lang_base scope_chain->lang_base
898 #define current_lang_name scope_chain->lang_name
900 /* When parsing a template declaration, a TREE_LIST represents the
901 active template parameters. Each node in the list represents one
902 level of template parameters. The innermost level is first in the
903 list. The depth of each level is stored as an INTEGER_CST in the
904 TREE_PURPOSE of each node. The parameters for that level are
905 stored in the TREE_VALUE. */
907 #define current_template_parms scope_chain->template_parms
909 #define processing_template_decl scope_chain->x_processing_template_decl
910 #define processing_specialization scope_chain->x_processing_specialization
911 #define processing_explicit_instantiation scope_chain->x_processing_explicit_instantiation
913 /* The cached class binding level, from the most recently exited
914 class, or NULL if none. */
916 #define previous_class_level scope_chain->x_previous_class_level
918 /* A list of private types mentioned, for deferred access checking. */
920 extern GTY(()) struct saved_scope *scope_chain;
922 struct GTY(()) cxx_int_tree_map {
927 extern unsigned int cxx_int_tree_map_hash (const void *);
928 extern int cxx_int_tree_map_eq (const void *, const void *);
930 /* Global state pertinent to the current function. */
932 struct GTY(()) language_function {
933 struct c_language_function base;
936 tree x_current_class_ptr;
937 tree x_current_class_ref;
938 tree x_eh_spec_block;
939 tree x_in_charge_parm;
943 BOOL_BITFIELD returns_value : 1;
944 BOOL_BITFIELD returns_null : 1;
945 BOOL_BITFIELD returns_abnormally : 1;
946 BOOL_BITFIELD in_function_try_handler : 1;
947 BOOL_BITFIELD in_base_initializer : 1;
949 /* True if this function can throw an exception. */
950 BOOL_BITFIELD can_throw : 1;
952 htab_t GTY((param_is(struct named_label_entry))) x_named_labels;
953 struct cp_binding_level *bindings;
954 VEC(tree,gc) *x_local_names;
955 htab_t GTY((param_is (struct cxx_int_tree_map))) extern_decl_map;
958 /* The current C++-specific per-function global variables. */
960 #define cp_function_chain (cfun->language)
962 /* In a constructor destructor, the point at which all derived class
963 destroying/construction has been done. I.e., just before a
964 constructor returns, or before any base class destroying will be done
967 #define cdtor_label cp_function_chain->x_cdtor_label
969 /* When we're processing a member function, current_class_ptr is the
970 PARM_DECL for the `this' pointer. The current_class_ref is an
971 expression for `*this'. */
973 #define current_class_ptr \
974 (cfun ? cp_function_chain->x_current_class_ptr : NULL_TREE)
975 #define current_class_ref \
976 (cfun ? cp_function_chain->x_current_class_ref : NULL_TREE)
978 /* The EH_SPEC_BLOCK for the exception-specifiers for the current
981 #define current_eh_spec_block cp_function_chain->x_eh_spec_block
983 /* The `__in_chrg' parameter for the current function. Only used for
984 constructors and destructors. */
986 #define current_in_charge_parm cp_function_chain->x_in_charge_parm
988 /* The `__vtt_parm' parameter for the current function. Only used for
989 constructors and destructors. */
991 #define current_vtt_parm cp_function_chain->x_vtt_parm
993 /* Set to 0 at beginning of a function definition, set to 1 if
994 a return statement that specifies a return value is seen. */
996 #define current_function_returns_value cp_function_chain->returns_value
998 /* Set to 0 at beginning of a function definition, set to 1 if
999 a return statement with no argument is seen. */
1001 #define current_function_returns_null cp_function_chain->returns_null
1003 /* Set to 0 at beginning of a function definition, set to 1 if
1004 a call to a noreturn function is seen. */
1006 #define current_function_returns_abnormally \
1007 cp_function_chain->returns_abnormally
1009 /* Nonzero if we are processing a base initializer. Zero elsewhere. */
1010 #define in_base_initializer cp_function_chain->in_base_initializer
1012 #define in_function_try_handler cp_function_chain->in_function_try_handler
1014 /* Expression always returned from function, or error_mark_node
1015 otherwise, for use by the automatic named return value optimization. */
1017 #define current_function_return_value \
1018 (cp_function_chain->x_return_value)
1020 /* True if NAME is the IDENTIFIER_NODE for an overloaded "operator
1021 new" or "operator delete". */
1022 #define NEW_DELETE_OPNAME_P(NAME) \
1023 ((NAME) == ansi_opname (NEW_EXPR) \
1024 || (NAME) == ansi_opname (VEC_NEW_EXPR) \
1025 || (NAME) == ansi_opname (DELETE_EXPR) \
1026 || (NAME) == ansi_opname (VEC_DELETE_EXPR))
1028 #define ansi_opname(CODE) \
1029 (operator_name_info[(int) (CODE)].identifier)
1030 #define ansi_assopname(CODE) \
1031 (assignment_operator_name_info[(int) (CODE)].identifier)
1033 /* True if NODE is an erroneous expression. */
1035 #define error_operand_p(NODE) \
1036 ((NODE) == error_mark_node \
1037 || ((NODE) && TREE_TYPE ((NODE)) == error_mark_node))
1039 /* TRUE if a tree code represents a statement. */
1040 extern bool statement_code_p[MAX_TREE_CODES];
1042 #define STATEMENT_CODE_P(CODE) statement_code_p[(int) (CODE)]
1044 enum languages { lang_c, lang_cplusplus, lang_java };
1046 /* Macros to make error reporting functions' lives easier. */
1047 #define TYPE_IDENTIFIER(NODE) (DECL_NAME (TYPE_NAME (NODE)))
1048 #define TYPE_LINKAGE_IDENTIFIER(NODE) \
1049 (TYPE_IDENTIFIER (TYPE_MAIN_VARIANT (NODE)))
1050 #define TYPE_NAME_STRING(NODE) (IDENTIFIER_POINTER (TYPE_IDENTIFIER (NODE)))
1051 #define TYPE_NAME_LENGTH(NODE) (IDENTIFIER_LENGTH (TYPE_IDENTIFIER (NODE)))
1053 /* Nonzero if NODE has no name for linkage purposes. */
1054 #define TYPE_ANONYMOUS_P(NODE) \
1055 (TAGGED_TYPE_P (NODE) && ANON_AGGRNAME_P (TYPE_LINKAGE_IDENTIFIER (NODE)))
1057 /* The _DECL for this _TYPE. */
1058 #define TYPE_MAIN_DECL(NODE) (TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE)))
1060 /* Nonzero if T is a class (or struct or union) type. Also nonzero
1061 for template type parameters, typename types, and instantiated
1062 template template parameters. Keep these checks in ascending code
1064 #define MAYBE_CLASS_TYPE_P(T) \
1065 (TREE_CODE (T) == TEMPLATE_TYPE_PARM \
1066 || TREE_CODE (T) == TYPENAME_TYPE \
1067 || TREE_CODE (T) == TYPEOF_TYPE \
1068 || TREE_CODE (T) == BOUND_TEMPLATE_TEMPLATE_PARM \
1069 || TREE_CODE (T) == DECLTYPE_TYPE \
1070 || CLASS_TYPE_P (T))
1072 /* Set CLASS_TYPE_P for T to VAL. T must be a class, struct, or
1074 #define SET_CLASS_TYPE_P(T, VAL) \
1075 (TYPE_LANG_FLAG_5 (T) = (VAL))
1077 /* Nonzero if T is a class type. Zero for template type parameters,
1078 typename types, and so forth. */
1079 #define CLASS_TYPE_P(T) \
1080 (RECORD_OR_UNION_CODE_P (TREE_CODE (T)) && TYPE_LANG_FLAG_5 (T))
1082 /* Nonzero if T is a class type but not an union. */
1083 #define NON_UNION_CLASS_TYPE_P(T) \
1084 (CLASS_TYPE_P (T) && TREE_CODE (T) != UNION_TYPE)
1086 /* Keep these checks in ascending code order. */
1087 #define RECORD_OR_UNION_CODE_P(T) \
1088 ((T) == RECORD_TYPE || (T) == UNION_TYPE)
1089 #define TAGGED_TYPE_P(T) \
1090 (CLASS_TYPE_P (T) || TREE_CODE (T) == ENUMERAL_TYPE)
1091 #define IS_OVERLOAD_TYPE(T) TAGGED_TYPE_P (T)
1093 /* True if this a "Java" type, defined in 'extern "Java"'. */
1094 #define TYPE_FOR_JAVA(NODE) TYPE_LANG_FLAG_3 (NODE)
1096 /* True if this type is dependent. This predicate is only valid if
1097 TYPE_DEPENDENT_P_VALID is true. */
1098 #define TYPE_DEPENDENT_P(NODE) TYPE_LANG_FLAG_0 (NODE)
1100 /* True if dependent_type_p has been called for this type, with the
1101 result that TYPE_DEPENDENT_P is valid. */
1102 #define TYPE_DEPENDENT_P_VALID(NODE) TYPE_LANG_FLAG_6(NODE)
1104 /* Nonzero if this type is const-qualified. */
1105 #define CP_TYPE_CONST_P(NODE) \
1106 ((cp_type_quals (NODE) & TYPE_QUAL_CONST) != 0)
1108 /* Nonzero if this type is volatile-qualified. */
1109 #define CP_TYPE_VOLATILE_P(NODE) \
1110 ((cp_type_quals (NODE) & TYPE_QUAL_VOLATILE) != 0)
1112 /* Nonzero if this type is restrict-qualified. */
1113 #define CP_TYPE_RESTRICT_P(NODE) \
1114 ((cp_type_quals (NODE) & TYPE_QUAL_RESTRICT) != 0)
1116 /* Nonzero if this type is const-qualified, but not
1117 volatile-qualified. Other qualifiers are ignored. This macro is
1118 used to test whether or not it is OK to bind an rvalue to a
1120 #define CP_TYPE_CONST_NON_VOLATILE_P(NODE) \
1121 ((cp_type_quals (NODE) & (TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE)) \
1124 #define FUNCTION_ARG_CHAIN(NODE) \
1125 TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (NODE)))
1127 /* Given a FUNCTION_DECL, returns the first TREE_LIST out of TYPE_ARG_TYPES
1128 which refers to a user-written parameter. */
1129 #define FUNCTION_FIRST_USER_PARMTYPE(NODE) \
1130 skip_artificial_parms_for ((NODE), TYPE_ARG_TYPES (TREE_TYPE (NODE)))
1132 /* Similarly, but for DECL_ARGUMENTS. */
1133 #define FUNCTION_FIRST_USER_PARM(NODE) \
1134 skip_artificial_parms_for ((NODE), DECL_ARGUMENTS (NODE))
1136 /* Nonzero iff TYPE is derived from PARENT. Ignores accessibility and
1137 ambiguity issues. */
1138 #define DERIVED_FROM_P(PARENT, TYPE) \
1139 (lookup_base ((TYPE), (PARENT), ba_any, NULL) != NULL_TREE)
1140 /* Nonzero iff TYPE is uniquely derived from PARENT. Ignores
1142 #define UNIQUELY_DERIVED_FROM_P(PARENT, TYPE) \
1143 (lookup_base ((TYPE), (PARENT), ba_unique | ba_quiet, NULL) != NULL_TREE)
1144 /* Nonzero iff TYPE is publicly & uniquely derived from PARENT. */
1145 #define PUBLICLY_UNIQUELY_DERIVED_P(PARENT, TYPE) \
1146 (lookup_base ((TYPE), (PARENT), ba_ignore_scope | ba_check | ba_quiet, \
1149 /* Gives the visibility specification for a class type. */
1150 #define CLASSTYPE_VISIBILITY(TYPE) \
1151 DECL_VISIBILITY (TYPE_NAME (TYPE))
1152 #define CLASSTYPE_VISIBILITY_SPECIFIED(TYPE) \
1153 DECL_VISIBILITY_SPECIFIED (TYPE_NAME (TYPE))
1155 typedef struct GTY (()) tree_pair_s {
1159 typedef tree_pair_s *tree_pair_p;
1160 DEF_VEC_O (tree_pair_s);
1161 DEF_VEC_ALLOC_O (tree_pair_s,gc);
1163 /* This is a few header flags for 'struct lang_type'. Actually,
1164 all but the first are used only for lang_type_class; they
1165 are put in this structure to save space. */
1166 struct GTY(()) lang_type_header {
1167 BOOL_BITFIELD is_lang_type_class : 1;
1169 BOOL_BITFIELD has_type_conversion : 1;
1170 BOOL_BITFIELD has_init_ref : 1;
1171 BOOL_BITFIELD has_default_ctor : 1;
1172 BOOL_BITFIELD const_needs_init : 1;
1173 BOOL_BITFIELD ref_needs_init : 1;
1174 BOOL_BITFIELD has_const_assign_ref : 1;
1176 BOOL_BITFIELD spare : 1;
1179 /* This structure provides additional information above and beyond
1180 what is provide in the ordinary tree_type. In the past, we used it
1181 for the types of class types, template parameters types, typename
1182 types, and so forth. However, there can be many (tens to hundreds
1183 of thousands) of template parameter types in a compilation, and
1184 there's no need for this additional information in that case.
1185 Therefore, we now use this data structure only for class types.
1187 In the past, it was thought that there would be relatively few
1188 class types. However, in the presence of heavy use of templates,
1189 many (i.e., thousands) of classes can easily be generated.
1190 Therefore, we should endeavor to keep the size of this structure to
1192 struct GTY(()) lang_type_class {
1193 struct lang_type_header h;
1195 unsigned char align;
1197 unsigned has_mutable : 1;
1198 unsigned com_interface : 1;
1199 unsigned non_pod_class : 1;
1200 unsigned nearly_empty_p : 1;
1201 unsigned user_align : 1;
1202 unsigned has_assign_ref : 1;
1203 unsigned has_new : 1;
1204 unsigned has_array_new : 1;
1206 unsigned gets_delete : 2;
1207 unsigned interface_only : 1;
1208 unsigned interface_unknown : 1;
1209 unsigned contains_empty_class_p : 1;
1210 unsigned anon_aggr : 1;
1211 unsigned non_zero_init : 1;
1212 unsigned empty_p : 1;
1214 unsigned vec_new_uses_cookie : 1;
1215 unsigned declared_class : 1;
1216 unsigned diamond_shaped : 1;
1217 unsigned repeated_base : 1;
1218 unsigned being_defined : 1;
1219 unsigned java_interface : 1;
1220 unsigned debug_requested : 1;
1221 unsigned fields_readonly : 1;
1223 unsigned use_template : 2;
1224 unsigned ptrmemfunc_flag : 1;
1225 unsigned was_anonymous : 1;
1226 unsigned lazy_default_ctor : 1;
1227 unsigned lazy_copy_ctor : 1;
1228 unsigned lazy_assignment_op : 1;
1229 unsigned lazy_destructor : 1;
1231 unsigned has_const_init_ref : 1;
1232 unsigned has_complex_init_ref : 1;
1233 unsigned has_complex_assign_ref : 1;
1234 unsigned non_aggregate : 1;
1235 unsigned has_complex_dflt : 1;
1236 unsigned has_list_ctor : 1;
1237 unsigned non_std_layout : 1;
1238 unsigned lazy_move_ctor : 1;
1239 unsigned is_literal : 1;
1241 /* When adding a flag here, consider whether or not it ought to
1242 apply to a template instance if it applies to the template. If
1243 so, make sure to copy it in instantiate_class_template! */
1245 /* There are some bits left to fill out a 32-bit word. Keep track
1246 of this by updating the size of this bitfield whenever you add or
1251 VEC(tree_pair_s,gc) *vcall_indices;
1254 VEC(tree,gc) *vbases;
1255 binding_table nested_udts;
1257 VEC(tree,gc) *pure_virtuals;
1258 tree friend_classes;
1259 VEC(tree,gc) * GTY((reorder ("resort_type_method_vec"))) methods;
1263 tree befriending_classes;
1264 /* In a RECORD_TYPE, information specific to Objective-C++, such
1265 as a list of adopted protocols or a pointer to a corresponding
1266 @interface. See objc/objc-act.h for details. */
1268 /* sorted_fields is sorted based on a pointer, so we need to be able
1269 to resort it if pointers get rearranged. */
1270 struct sorted_fields_type * GTY ((reorder ("resort_sorted_fields")))
1272 /* FIXME reuse another field? */
1276 struct GTY(()) lang_type_ptrmem {
1277 struct lang_type_header h;
1281 struct GTY(()) lang_type {
1284 struct lang_type_header GTY((skip (""))) h;
1285 struct lang_type_class GTY((tag ("1"))) c;
1286 struct lang_type_ptrmem GTY((tag ("0"))) ptrmem;
1287 } GTY((desc ("%h.h.is_lang_type_class"))) u;
1290 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1292 #define LANG_TYPE_CLASS_CHECK(NODE) __extension__ \
1293 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1294 if (! lt->u.h.is_lang_type_class) \
1295 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1298 #define LANG_TYPE_PTRMEM_CHECK(NODE) __extension__ \
1299 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1300 if (lt->u.h.is_lang_type_class) \
1301 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1306 #define LANG_TYPE_CLASS_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.c)
1307 #define LANG_TYPE_PTRMEM_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.ptrmem)
1309 #endif /* ENABLE_TREE_CHECKING */
1311 /* Nonzero for _CLASSTYPE means that operator delete is defined. */
1312 #define TYPE_GETS_DELETE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->gets_delete)
1313 #define TYPE_GETS_REG_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 1)
1315 /* Nonzero if `new NODE[x]' should cause the allocation of extra
1316 storage to indicate how many array elements are in use. */
1317 #define TYPE_VEC_NEW_USES_COOKIE(NODE) \
1318 (CLASS_TYPE_P (NODE) \
1319 && LANG_TYPE_CLASS_CHECK (NODE)->vec_new_uses_cookie)
1321 /* Nonzero means that this _CLASSTYPE node defines ways of converting
1322 itself to other types. */
1323 #define TYPE_HAS_CONVERSION(NODE) \
1324 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_type_conversion)
1326 /* Nonzero means that NODE (a class type) has a default constructor --
1327 but that it has not yet been declared. */
1328 #define CLASSTYPE_LAZY_DEFAULT_CTOR(NODE) \
1329 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_default_ctor)
1331 /* Nonzero means that NODE (a class type) has a copy constructor --
1332 but that it has not yet been declared. */
1333 #define CLASSTYPE_LAZY_COPY_CTOR(NODE) \
1334 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_ctor)
1336 /* Nonzero means that NODE (a class type) has a move constructor --
1337 but that it has not yet been declared. */
1338 #define CLASSTYPE_LAZY_MOVE_CTOR(NODE) \
1339 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_move_ctor)
1341 /* Nonzero means that NODE (a class type) has an assignment operator
1342 -- but that it has not yet been declared. */
1343 #define CLASSTYPE_LAZY_ASSIGNMENT_OP(NODE) \
1344 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_assignment_op)
1346 /* Nonzero means that NODE (a class type) has a destructor -- but that
1347 it has not yet been declared. */
1348 #define CLASSTYPE_LAZY_DESTRUCTOR(NODE) \
1349 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_destructor)
1351 /* Nonzero means that this _CLASSTYPE node overloads operator=(X&). */
1352 #define TYPE_HAS_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_assign_ref)
1354 /* True iff the class type NODE has an "operator =" whose parameter
1355 has a parameter of type "const X&". */
1356 #define TYPE_HAS_CONST_ASSIGN_REF(NODE) \
1357 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_const_assign_ref)
1359 /* Nonzero means that this _CLASSTYPE node has an X(X&) constructor. */
1360 #define TYPE_HAS_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->h.has_init_ref)
1361 #define TYPE_HAS_CONST_INIT_REF(NODE) \
1362 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_init_ref)
1364 /* Nonzero if this class has an X(initializer_list<T>) constructor. */
1365 #define TYPE_HAS_LIST_CTOR(NODE) \
1366 (LANG_TYPE_CLASS_CHECK (NODE)->has_list_ctor)
1368 /* Nonzero if this class defines an overloaded operator new. (An
1369 operator new [] doesn't count.) */
1370 #define TYPE_HAS_NEW_OPERATOR(NODE) \
1371 (LANG_TYPE_CLASS_CHECK (NODE)->has_new)
1373 /* Nonzero if this class defines an overloaded operator new[]. */
1374 #define TYPE_HAS_ARRAY_NEW_OPERATOR(NODE) \
1375 (LANG_TYPE_CLASS_CHECK (NODE)->has_array_new)
1377 /* Nonzero means that this type is being defined. I.e., the left brace
1378 starting the definition of this type has been seen. */
1379 #define TYPE_BEING_DEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->being_defined)
1381 /* Mark bits for repeated base checks. */
1382 #define TYPE_MARKED_P(NODE) TREE_LANG_FLAG_6 (TYPE_CHECK (NODE))
1384 /* Nonzero if the class NODE has multiple paths to the same (virtual)
1386 #define CLASSTYPE_DIAMOND_SHAPED_P(NODE) \
1387 (LANG_TYPE_CLASS_CHECK(NODE)->diamond_shaped)
1389 /* Nonzero if the class NODE has multiple instances of the same base
1391 #define CLASSTYPE_REPEATED_BASE_P(NODE) \
1392 (LANG_TYPE_CLASS_CHECK(NODE)->repeated_base)
1394 /* The member function with which the vtable will be emitted:
1395 the first noninline non-pure-virtual member function. NULL_TREE
1396 if there is no key function or if this is a class template */
1397 #define CLASSTYPE_KEY_METHOD(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->key_method)
1399 /* Vector member functions defined in this class. Each element is
1400 either a FUNCTION_DECL, a TEMPLATE_DECL, or an OVERLOAD. All
1401 functions with the same name end up in the same slot. The first
1402 two elements are for constructors, and destructors, respectively.
1403 All template conversion operators to innermost template dependent
1404 types are overloaded on the next slot, if they exist. Note, the
1405 names for these functions will not all be the same. The
1406 non-template conversion operators & templated conversions to
1407 non-innermost template types are next, followed by ordinary member
1408 functions. There may be empty entries at the end of the vector.
1409 The conversion operators are unsorted. The ordinary member
1410 functions are sorted, once the class is complete. */
1411 #define CLASSTYPE_METHOD_VEC(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->methods)
1413 /* For class templates, this is a TREE_LIST of all member data,
1414 functions, types, and friends in the order of declaration.
1415 The TREE_PURPOSE of each TREE_LIST is NULL_TREE for a friend,
1416 and the RECORD_TYPE for the class template otherwise. */
1417 #define CLASSTYPE_DECL_LIST(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->decl_list)
1419 /* The slot in the CLASSTYPE_METHOD_VEC where constructors go. */
1420 #define CLASSTYPE_CONSTRUCTOR_SLOT 0
1422 /* The slot in the CLASSTYPE_METHOD_VEC where destructors go. */
1423 #define CLASSTYPE_DESTRUCTOR_SLOT 1
1425 /* The first slot in the CLASSTYPE_METHOD_VEC where conversion
1426 operators can appear. */
1427 #define CLASSTYPE_FIRST_CONVERSION_SLOT 2
1429 /* A FUNCTION_DECL or OVERLOAD for the constructors for NODE. These
1430 are the constructors that take an in-charge parameter. */
1431 #define CLASSTYPE_CONSTRUCTORS(NODE) \
1432 (VEC_index (tree, CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_CONSTRUCTOR_SLOT))
1434 /* A FUNCTION_DECL for the destructor for NODE. These are the
1435 destructors that take an in-charge parameter. If
1436 CLASSTYPE_LAZY_DESTRUCTOR is true, then this entry will be NULL
1437 until the destructor is created with lazily_declare_fn. */
1438 #define CLASSTYPE_DESTRUCTORS(NODE) \
1439 (CLASSTYPE_METHOD_VEC (NODE) \
1440 ? VEC_index (tree, CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_DESTRUCTOR_SLOT) \
1443 /* A dictionary of the nested user-defined-types (class-types, or enums)
1444 found within this class. This table includes nested member class
1446 #define CLASSTYPE_NESTED_UTDS(NODE) \
1447 (LANG_TYPE_CLASS_CHECK (NODE)->nested_udts)
1449 /* Nonzero if NODE has a primary base class, i.e., a base class with
1450 which it shares the virtual function table pointer. */
1451 #define CLASSTYPE_HAS_PRIMARY_BASE_P(NODE) \
1452 (CLASSTYPE_PRIMARY_BINFO (NODE) != NULL_TREE)
1454 /* If non-NULL, this is the binfo for the primary base class, i.e.,
1455 the base class which contains the virtual function table pointer
1457 #define CLASSTYPE_PRIMARY_BINFO(NODE) \
1458 (LANG_TYPE_CLASS_CHECK (NODE)->primary_base)
1460 /* A vector of BINFOs for the direct and indirect virtual base classes
1461 that this type uses in a post-order depth-first left-to-right
1462 order. (In other words, these bases appear in the order that they
1463 should be initialized.) */
1464 #define CLASSTYPE_VBASECLASSES(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->vbases)
1466 /* The type corresponding to NODE when NODE is used as a base class,
1467 i.e., NODE without virtual base classes. */
1469 #define CLASSTYPE_AS_BASE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->as_base)
1471 /* True iff NODE is the CLASSTYPE_AS_BASE version of some type. */
1473 #define IS_FAKE_BASE_TYPE(NODE) \
1474 (TREE_CODE (NODE) == RECORD_TYPE \
1475 && TYPE_CONTEXT (NODE) && CLASS_TYPE_P (TYPE_CONTEXT (NODE)) \
1476 && CLASSTYPE_AS_BASE (TYPE_CONTEXT (NODE)) == (NODE))
1478 /* These are the size and alignment of the type without its virtual
1479 base classes, for when we use this type as a base itself. */
1480 #define CLASSTYPE_SIZE(NODE) TYPE_SIZE (CLASSTYPE_AS_BASE (NODE))
1481 #define CLASSTYPE_SIZE_UNIT(NODE) TYPE_SIZE_UNIT (CLASSTYPE_AS_BASE (NODE))
1482 #define CLASSTYPE_ALIGN(NODE) TYPE_ALIGN (CLASSTYPE_AS_BASE (NODE))
1483 #define CLASSTYPE_USER_ALIGN(NODE) TYPE_USER_ALIGN (CLASSTYPE_AS_BASE (NODE))
1485 /* The alignment of NODE, without its virtual bases, in bytes. */
1486 #define CLASSTYPE_ALIGN_UNIT(NODE) \
1487 (CLASSTYPE_ALIGN (NODE) / BITS_PER_UNIT)
1489 /* True if this a Java interface type, declared with
1490 '__attribute__ ((java_interface))'. */
1491 #define TYPE_JAVA_INTERFACE(NODE) \
1492 (LANG_TYPE_CLASS_CHECK (NODE)->java_interface)
1494 /* A VEC(tree) of virtual functions which cannot be inherited by
1495 derived classes. When deriving from this type, the derived
1496 class must provide its own definition for each of these functions. */
1497 #define CLASSTYPE_PURE_VIRTUALS(NODE) \
1498 (LANG_TYPE_CLASS_CHECK (NODE)->pure_virtuals)
1500 /* Nonzero means that this type has an X() constructor. */
1501 #define TYPE_HAS_DEFAULT_CONSTRUCTOR(NODE) \
1502 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_default_ctor)
1504 /* Nonzero means that this type contains a mutable member. */
1505 #define CLASSTYPE_HAS_MUTABLE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_mutable)
1506 #define TYPE_HAS_MUTABLE_P(NODE) (cp_has_mutable_p (NODE))
1508 /* Nonzero means that this class type is not POD for the purpose of layout
1509 (as defined in the ABI). This is different from the language's POD. */
1510 #define CLASSTYPE_NON_LAYOUT_POD_P(NODE) \
1511 (LANG_TYPE_CLASS_CHECK (NODE)->non_pod_class)
1513 /* Nonzero means that this class type is a non-standard-layout class. */
1514 #define CLASSTYPE_NON_STD_LAYOUT(NODE) \
1515 (LANG_TYPE_CLASS_CHECK (NODE)->non_std_layout)
1517 /* Nonzero means that this class contains pod types whose default
1518 initialization is not a zero initialization (namely, pointers to
1520 #define CLASSTYPE_NON_ZERO_INIT_P(NODE) \
1521 (LANG_TYPE_CLASS_CHECK (NODE)->non_zero_init)
1523 /* Nonzero if this class is "empty" in the sense of the C++ ABI. */
1524 #define CLASSTYPE_EMPTY_P(NODE) \
1525 (LANG_TYPE_CLASS_CHECK (NODE)->empty_p)
1527 /* Nonzero if this class is "nearly empty", i.e., contains only a
1528 virtual function table pointer. */
1529 #define CLASSTYPE_NEARLY_EMPTY_P(NODE) \
1530 (LANG_TYPE_CLASS_CHECK (NODE)->nearly_empty_p)
1532 /* Nonzero if this class contains an empty subobject. */
1533 #define CLASSTYPE_CONTAINS_EMPTY_CLASS_P(NODE) \
1534 (LANG_TYPE_CLASS_CHECK (NODE)->contains_empty_class_p)
1536 /* A list of class types of which this type is a friend. The
1537 TREE_VALUE is normally a TYPE, but will be a TEMPLATE_DECL in the
1538 case of a template friend. */
1539 #define CLASSTYPE_FRIEND_CLASSES(NODE) \
1540 (LANG_TYPE_CLASS_CHECK (NODE)->friend_classes)
1542 /* A list of the classes which grant friendship to this class. */
1543 #define CLASSTYPE_BEFRIENDING_CLASSES(NODE) \
1544 (LANG_TYPE_CLASS_CHECK (NODE)->befriending_classes)
1546 /* The associated LAMBDA_EXPR that made this class. */
1547 #define CLASSTYPE_LAMBDA_EXPR(NODE) \
1548 (LANG_TYPE_CLASS_CHECK (NODE)->lambda_expr)
1549 /* The extra mangling scope for this closure type. */
1550 #define LAMBDA_TYPE_EXTRA_SCOPE(NODE) \
1551 (LAMBDA_EXPR_EXTRA_SCOPE (CLASSTYPE_LAMBDA_EXPR (NODE)))
1553 /* Say whether this node was declared as a "class" or a "struct". */
1554 #define CLASSTYPE_DECLARED_CLASS(NODE) \
1555 (LANG_TYPE_CLASS_CHECK (NODE)->declared_class)
1557 /* Nonzero if this class has const members
1558 which have no specified initialization. */
1559 #define CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE) \
1560 (TYPE_LANG_SPECIFIC (NODE) \
1561 ? LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init : 0)
1562 #define SET_CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE, VALUE) \
1563 (LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init = (VALUE))
1565 /* Nonzero if this class has ref members
1566 which have no specified initialization. */
1567 #define CLASSTYPE_REF_FIELDS_NEED_INIT(NODE) \
1568 (TYPE_LANG_SPECIFIC (NODE) \
1569 ? LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init : 0)
1570 #define SET_CLASSTYPE_REF_FIELDS_NEED_INIT(NODE, VALUE) \
1571 (LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init = (VALUE))
1573 /* Nonzero if this class is included from a header file which employs
1574 `#pragma interface', and it is not included in its implementation file. */
1575 #define CLASSTYPE_INTERFACE_ONLY(NODE) \
1576 (LANG_TYPE_CLASS_CHECK (NODE)->interface_only)
1578 /* True if we have already determined whether or not vtables, VTTs,
1579 typeinfo, and other similar per-class data should be emitted in
1580 this translation unit. This flag does not indicate whether or not
1581 these items should be emitted; it only indicates that we know one
1582 way or the other. */
1583 #define CLASSTYPE_INTERFACE_KNOWN(NODE) \
1584 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown == 0)
1585 /* The opposite of CLASSTYPE_INTERFACE_KNOWN. */
1586 #define CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1587 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown)
1589 #define SET_CLASSTYPE_INTERFACE_UNKNOWN_X(NODE,X) \
1590 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = !!(X))
1591 #define SET_CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1592 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 1)
1593 #define SET_CLASSTYPE_INTERFACE_KNOWN(NODE) \
1594 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 0)
1596 /* Nonzero if a _DECL node requires us to output debug info for this class. */
1597 #define CLASSTYPE_DEBUG_REQUESTED(NODE) \
1598 (LANG_TYPE_CLASS_CHECK (NODE)->debug_requested)
1600 /* Additional macros for inheritance information. */
1602 /* Nonzero means that this class is on a path leading to a new vtable. */
1603 #define BINFO_VTABLE_PATH_MARKED(NODE) BINFO_FLAG_1 (NODE)
1605 /* Nonzero means B (a BINFO) has its own vtable. Any copies will not
1606 have this flag set. */
1607 #define BINFO_NEW_VTABLE_MARKED(B) (BINFO_FLAG_2 (B))
1609 /* Compare a BINFO_TYPE with another type for equality. For a binfo,
1610 this is functionally equivalent to using same_type_p, but
1611 measurably faster. At least one of the arguments must be a
1612 BINFO_TYPE. The other can be a BINFO_TYPE or a regular type. If
1613 BINFO_TYPE(T) ever stops being the main variant of the class the
1614 binfo is for, this macro must change. */
1615 #define SAME_BINFO_TYPE_P(A, B) ((A) == (B))
1617 /* Any subobject that needs a new vtable must have a vptr and must not
1618 be a non-virtual primary base (since it would then use the vtable from a
1619 derived class and never become non-primary.) */
1620 #define SET_BINFO_NEW_VTABLE_MARKED(B) \
1621 (BINFO_NEW_VTABLE_MARKED (B) = 1, \
1622 gcc_assert (!BINFO_PRIMARY_P (B) || BINFO_VIRTUAL_P (B)), \
1623 gcc_assert (TYPE_VFIELD (BINFO_TYPE (B))))
1625 /* Nonzero if this binfo is for a dependent base - one that should not
1627 #define BINFO_DEPENDENT_BASE_P(NODE) BINFO_FLAG_3 (NODE)
1629 /* Nonzero if this binfo has lost its primary base binfo (because that
1630 is a nearly-empty virtual base that has been taken by some other
1631 base in the complete hierarchy. */
1632 #define BINFO_LOST_PRIMARY_P(NODE) BINFO_FLAG_4 (NODE)
1634 /* Nonzero if this BINFO is a primary base class. */
1635 #define BINFO_PRIMARY_P(NODE) BINFO_FLAG_5(NODE)
1637 /* Used by various search routines. */
1638 #define IDENTIFIER_MARKED(NODE) TREE_LANG_FLAG_0 (NODE)
1640 /* A VEC(tree_pair_s) of the vcall indices associated with the class
1641 NODE. The PURPOSE of each element is a FUNCTION_DECL for a virtual
1642 function. The VALUE is the index into the virtual table where the
1643 vcall offset for that function is stored, when NODE is a virtual
1645 #define CLASSTYPE_VCALL_INDICES(NODE) \
1646 (LANG_TYPE_CLASS_CHECK (NODE)->vcall_indices)
1648 /* The various vtables for the class NODE. The primary vtable will be
1649 first, followed by the construction vtables and VTT, if any. */
1650 #define CLASSTYPE_VTABLES(NODE) \
1651 (LANG_TYPE_CLASS_CHECK (NODE)->vtables)
1653 /* The std::type_info variable representing this class, or NULL if no
1654 such variable has been created. This field is only set for the
1655 TYPE_MAIN_VARIANT of the class. */
1656 #define CLASSTYPE_TYPEINFO_VAR(NODE) \
1657 (LANG_TYPE_CLASS_CHECK (NODE)->typeinfo_var)
1659 /* Accessor macros for the BINFO_VIRTUALS list. */
1661 /* The number of bytes by which to adjust the `this' pointer when
1662 calling this virtual function. Subtract this value from the this
1663 pointer. Always non-NULL, might be constant zero though. */
1664 #define BV_DELTA(NODE) (TREE_PURPOSE (NODE))
1666 /* If non-NULL, the vtable index at which to find the vcall offset
1667 when calling this virtual function. Add the value at that vtable
1668 index to the this pointer. */
1669 #define BV_VCALL_INDEX(NODE) (TREE_TYPE (NODE))
1671 /* The function to call. */
1672 #define BV_FN(NODE) (TREE_VALUE (NODE))
1675 /* For FUNCTION_TYPE or METHOD_TYPE, a list of the exceptions that
1676 this type can raise. Each TREE_VALUE is a _TYPE. The TREE_VALUE
1677 will be NULL_TREE to indicate a throw specification of `()', or
1678 no exceptions allowed. */
1679 #define TYPE_RAISES_EXCEPTIONS(NODE) TYPE_LANG_SLOT_1 (NODE)
1681 /* For FUNCTION_TYPE or METHOD_TYPE, return 1 iff it is declared `throw()'. */
1682 #define TYPE_NOTHROW_P(NODE) \
1683 (TYPE_RAISES_EXCEPTIONS (NODE) \
1684 && TREE_VALUE (TYPE_RAISES_EXCEPTIONS (NODE)) == NULL_TREE)
1686 /* The binding level associated with the namespace. */
1687 #define NAMESPACE_LEVEL(NODE) \
1688 (LANG_DECL_NS_CHECK (NODE)->level)
1690 /* Flags shared by all forms of DECL_LANG_SPECIFIC.
1692 Some of the flags live here only to make lang_decl_min/fn smaller. Do
1693 not make this struct larger than 32 bits; instead, make sel smaller. */
1695 struct GTY(()) lang_decl_base {
1696 unsigned selector : 16; /* Larger than necessary for faster access. */
1697 ENUM_BITFIELD(languages) language : 4;
1698 unsigned use_template : 2;
1699 unsigned not_really_extern : 1; /* var or fn */
1700 unsigned initialized_in_class : 1; /* var or fn */
1701 unsigned repo_available_p : 1; /* var or fn */
1702 unsigned threadprivate_or_deleted_p : 1; /* var or fn */
1703 unsigned anticipated_p : 1; /* fn or type */
1704 unsigned friend_attr : 1; /* fn or type */
1705 unsigned template_conv_p : 1; /* template only? */
1706 unsigned odr_used : 1; /* var or fn */
1711 /* True for DECL codes which have template info and access. */
1712 #define LANG_DECL_HAS_MIN(NODE) \
1713 (TREE_CODE (NODE) == FUNCTION_DECL \
1714 || TREE_CODE (NODE) == FIELD_DECL \
1715 || TREE_CODE (NODE) == VAR_DECL \
1716 || TREE_CODE (NODE) == CONST_DECL \
1717 || TREE_CODE (NODE) == TYPE_DECL \
1718 || TREE_CODE (NODE) == TEMPLATE_DECL \
1719 || TREE_CODE (NODE) == USING_DECL)
1721 /* DECL_LANG_SPECIFIC for the above codes. */
1723 struct GTY(()) lang_decl_min {
1724 struct lang_decl_base base;
1726 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
1728 In a FUNCTION_DECL for which DECL_THUNK_P does not hold,
1729 VAR_DECL, TYPE_DECL, or TEMPLATE_DECL, this is
1730 DECL_TEMPLATE_INFO. */
1733 union lang_decl_u2 {
1734 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
1735 THUNK_VIRTUAL_OFFSET.
1736 Otherwise this is DECL_ACCESS. */
1737 tree GTY ((tag ("0"))) access;
1739 /* For VAR_DECL in function, this is DECL_DISCRIMINATOR. */
1740 int GTY ((tag ("1"))) discriminator;
1741 } GTY ((desc ("%0.u.base.u2sel"))) u2;
1744 /* Additional DECL_LANG_SPECIFIC information for functions. */
1746 struct GTY(()) lang_decl_fn {
1747 struct lang_decl_min min;
1749 /* In an overloaded operator, this is the value of
1750 DECL_OVERLOADED_OPERATOR_P. */
1751 ENUM_BITFIELD (tree_code) operator_code : 16;
1753 unsigned global_ctor_p : 1;
1754 unsigned global_dtor_p : 1;
1755 unsigned constructor_attr : 1;
1756 unsigned destructor_attr : 1;
1757 unsigned assignment_operator_p : 1;
1758 unsigned static_function : 1;
1759 unsigned pure_virtual : 1;
1760 unsigned defaulted_p : 1;
1762 unsigned has_in_charge_parm_p : 1;
1763 unsigned has_vtt_parm_p : 1;
1764 unsigned pending_inline_p : 1;
1765 unsigned nonconverting : 1;
1766 unsigned thunk_p : 1;
1767 unsigned this_thunk_p : 1;
1768 unsigned hidden_friend_p : 1;
1771 /* For a non-thunk function decl, this is a tree list of
1772 friendly classes. For a thunk function decl, it is the
1773 thunked to function decl. */
1774 tree befriending_classes;
1776 /* For a non-virtual FUNCTION_DECL, this is
1777 DECL_FRIEND_CONTEXT. For a virtual FUNCTION_DECL for which
1778 DECL_THIS_THUNK_P does not hold, this is DECL_THUNKS. Both
1779 this pointer and result pointer adjusting thunks are
1780 chained here. This pointer thunks to return pointer thunks
1781 will be chained on the return pointer thunk. */
1786 /* In a non-thunk FUNCTION_DECL or TEMPLATE_DECL, this is
1787 DECL_CLONED_FUNCTION. */
1788 tree GTY ((tag ("0"))) cloned_function;
1790 /* In a FUNCTION_DECL for which THUNK_P holds this is the
1791 THUNK_FIXED_OFFSET. */
1792 HOST_WIDE_INT GTY ((tag ("1"))) fixed_offset;
1793 } GTY ((desc ("%1.thunk_p"))) u5;
1797 struct cp_token_cache * GTY ((tag ("1"))) pending_inline_info;
1798 struct language_function * GTY ((tag ("0")))
1799 saved_language_function;
1800 } GTY ((desc ("%1.pending_inline_p"))) u;
1804 /* DECL_LANG_SPECIFIC for namespaces. */
1806 struct GTY(()) lang_decl_ns {
1807 struct lang_decl_base base;
1808 struct cp_binding_level *level;
1811 /* DECL_LANG_SPECIFIC for parameters. */
1813 struct GTY(()) lang_decl_parm {
1814 struct lang_decl_base base;
1818 /* DECL_LANG_SPECIFIC for all types. It would be nice to just make this a
1819 union rather than a struct containing a union as its only field, but
1820 tree.h declares it as a struct. */
1822 struct GTY(()) lang_decl {
1823 union GTY((desc ("%h.base.selector"))) lang_decl_u {
1824 struct lang_decl_base GTY ((default)) base;
1825 struct lang_decl_min GTY((tag ("0"))) min;
1826 struct lang_decl_fn GTY ((tag ("1"))) fn;
1827 struct lang_decl_ns GTY((tag ("2"))) ns;
1828 struct lang_decl_parm GTY((tag ("3"))) parm;
1832 /* Looks through a template (if present) to find what it declares. */
1833 #define STRIP_TEMPLATE(NODE) \
1834 (TREE_CODE (NODE) == TEMPLATE_DECL ? DECL_TEMPLATE_RESULT (NODE) : NODE)
1836 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1838 #define LANG_DECL_MIN_CHECK(NODE) __extension__ \
1839 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
1840 if (!LANG_DECL_HAS_MIN (NODE)) \
1841 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1844 /* We want to be able to check DECL_CONSTRUCTOR_P and such on a function
1845 template, not just on a FUNCTION_DECL. So when looking for things in
1846 lang_decl_fn, look down through a TEMPLATE_DECL into its result. */
1847 #define LANG_DECL_FN_CHECK(NODE) __extension__ \
1848 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE)); \
1849 if (!DECL_DECLARES_FUNCTION_P (NODE) || lt->u.base.selector != 1) \
1850 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1853 #define LANG_DECL_NS_CHECK(NODE) __extension__ \
1854 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
1855 if (TREE_CODE (NODE) != NAMESPACE_DECL || lt->u.base.selector != 2) \
1856 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1859 #define LANG_DECL_PARM_CHECK(NODE) __extension__ \
1860 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
1861 if (TREE_CODE (NODE) != PARM_DECL) \
1862 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1865 #define LANG_DECL_U2_CHECK(NODE, TF) __extension__ \
1866 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
1867 if (!LANG_DECL_HAS_MIN (NODE) || lt->u.base.u2sel != TF) \
1868 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1873 #define LANG_DECL_MIN_CHECK(NODE) \
1874 (&DECL_LANG_SPECIFIC (NODE)->u.min)
1876 #define LANG_DECL_FN_CHECK(NODE) \
1877 (&DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE))->u.fn)
1879 #define LANG_DECL_NS_CHECK(NODE) \
1880 (&DECL_LANG_SPECIFIC (NODE)->u.ns)
1882 #define LANG_DECL_PARM_CHECK(NODE) \
1883 (&DECL_LANG_SPECIFIC (NODE)->u.parm)
1885 #define LANG_DECL_U2_CHECK(NODE, TF) \
1886 (&DECL_LANG_SPECIFIC (NODE)->u.min.u2)
1888 #endif /* ENABLE_TREE_CHECKING */
1890 /* For a FUNCTION_DECL or a VAR_DECL, the language linkage for the
1891 declaration. Some entities (like a member function in a local
1892 class, or a local variable) do not have linkage at all, and this
1893 macro should not be used in those cases.
1895 Implementation note: A FUNCTION_DECL without DECL_LANG_SPECIFIC was
1896 created by language-independent code, and has C linkage. Most
1897 VAR_DECLs have C++ linkage, and do not have DECL_LANG_SPECIFIC, but
1898 we do create DECL_LANG_SPECIFIC for variables with non-C++ linkage. */
1899 #define DECL_LANGUAGE(NODE) \
1900 (DECL_LANG_SPECIFIC (NODE) \
1901 ? DECL_LANG_SPECIFIC (NODE)->u.base.language \
1902 : (TREE_CODE (NODE) == FUNCTION_DECL \
1903 ? lang_c : lang_cplusplus))
1905 /* Set the language linkage for NODE to LANGUAGE. */
1906 #define SET_DECL_LANGUAGE(NODE, LANGUAGE) \
1907 (DECL_LANG_SPECIFIC (NODE)->u.base.language = (LANGUAGE))
1909 /* For FUNCTION_DECLs: nonzero means that this function is a constructor. */
1910 #define DECL_CONSTRUCTOR_P(NODE) \
1911 (LANG_DECL_FN_CHECK (NODE)->constructor_attr)
1913 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a complete
1915 #define DECL_COMPLETE_CONSTRUCTOR_P(NODE) \
1916 (DECL_CONSTRUCTOR_P (NODE) \
1917 && DECL_NAME (NODE) == complete_ctor_identifier)
1919 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a base
1921 #define DECL_BASE_CONSTRUCTOR_P(NODE) \
1922 (DECL_CONSTRUCTOR_P (NODE) \
1923 && DECL_NAME (NODE) == base_ctor_identifier)
1925 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor, but not either the
1926 specialized in-charge constructor or the specialized not-in-charge
1928 #define DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P(NODE) \
1929 (DECL_DECLARES_FUNCTION_P (NODE) && DECL_CONSTRUCTOR_P (NODE) \
1930 && !DECL_CLONED_FUNCTION_P (NODE))
1932 /* Nonzero if NODE (a FUNCTION_DECL) is a copy constructor. */
1933 #define DECL_COPY_CONSTRUCTOR_P(NODE) \
1934 (DECL_CONSTRUCTOR_P (NODE) && copy_fn_p (NODE) > 0)
1936 /* Nonzero if NODE (a FUNCTION_DECL) is a move constructor. */
1937 #define DECL_MOVE_CONSTRUCTOR_P(NODE) \
1938 (DECL_CONSTRUCTOR_P (NODE) && move_fn_p (NODE))
1940 /* Nonzero if NODE is a destructor. */
1941 #define DECL_DESTRUCTOR_P(NODE) \
1942 (LANG_DECL_FN_CHECK (NODE)->destructor_attr)
1944 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor, but not the
1945 specialized in-charge constructor, in-charge deleting constructor,
1946 or the base destructor. */
1947 #define DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P(NODE) \
1948 (DECL_DECLARES_FUNCTION_P (NODE) && DECL_DESTRUCTOR_P (NODE) \
1949 && !DECL_CLONED_FUNCTION_P (NODE))
1951 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
1953 #define DECL_COMPLETE_DESTRUCTOR_P(NODE) \
1954 (DECL_DESTRUCTOR_P (NODE) \
1955 && DECL_NAME (NODE) == complete_dtor_identifier)
1957 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a base
1959 #define DECL_BASE_DESTRUCTOR_P(NODE) \
1960 (DECL_DESTRUCTOR_P (NODE) \
1961 && DECL_NAME (NODE) == base_dtor_identifier)
1963 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
1964 object that deletes the object after it has been destroyed. */
1965 #define DECL_DELETING_DESTRUCTOR_P(NODE) \
1966 (DECL_DESTRUCTOR_P (NODE) \
1967 && DECL_NAME (NODE) == deleting_dtor_identifier)
1969 /* Nonzero if NODE (a FUNCTION_DECL) is a cloned constructor or
1971 #define DECL_CLONED_FUNCTION_P(NODE) (!!decl_cloned_function_p (NODE, true))
1973 /* If DECL_CLONED_FUNCTION_P holds, this is the function that was
1975 #define DECL_CLONED_FUNCTION(NODE) (*decl_cloned_function_p (NODE, false))
1977 /* Perform an action for each clone of FN, if FN is a function with
1978 clones. This macro should be used like:
1980 FOR_EACH_CLONE (clone, fn)
1984 #define FOR_EACH_CLONE(CLONE, FN) \
1985 if (TREE_CODE (FN) == FUNCTION_DECL \
1986 && (DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (FN) \
1987 || DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (FN))) \
1988 for (CLONE = TREE_CHAIN (FN); \
1989 CLONE && DECL_CLONED_FUNCTION_P (CLONE); \
1990 CLONE = TREE_CHAIN (CLONE))
1992 /* Nonzero if NODE has DECL_DISCRIMINATOR and not DECL_ACCESS. */
1993 #define DECL_DISCRIMINATOR_P(NODE) \
1994 (TREE_CODE (NODE) == VAR_DECL \
1995 && DECL_FUNCTION_SCOPE_P (NODE))
1997 /* Discriminator for name mangling. */
1998 #define DECL_DISCRIMINATOR(NODE) (LANG_DECL_U2_CHECK (NODE, 1)->discriminator)
2000 /* The index of a user-declared parameter in its function, starting at 1.
2001 All artificial parameters will have index 0. */
2002 #define DECL_PARM_INDEX(NODE) \
2003 (LANG_DECL_PARM_CHECK (NODE)->index)
2005 /* Nonzero if the VTT parm has been added to NODE. */
2006 #define DECL_HAS_VTT_PARM_P(NODE) \
2007 (LANG_DECL_FN_CHECK (NODE)->has_vtt_parm_p)
2009 /* Nonzero if NODE is a FUNCTION_DECL for which a VTT parameter is
2011 #define DECL_NEEDS_VTT_PARM_P(NODE) \
2012 (CLASSTYPE_VBASECLASSES (DECL_CONTEXT (NODE)) \
2013 && (DECL_BASE_CONSTRUCTOR_P (NODE) \
2014 || DECL_BASE_DESTRUCTOR_P (NODE)))
2016 /* Nonzero if NODE is a user-defined conversion operator. */
2017 #define DECL_CONV_FN_P(NODE) \
2018 (DECL_NAME (NODE) && IDENTIFIER_TYPENAME_P (DECL_NAME (NODE)))
2020 /* If FN is a conversion operator, the type to which it converts.
2021 Otherwise, NULL_TREE. */
2022 #define DECL_CONV_FN_TYPE(FN) \
2023 (DECL_CONV_FN_P (FN) ? TREE_TYPE (DECL_NAME (FN)) : NULL_TREE)
2025 /* Nonzero if NODE, which is a TEMPLATE_DECL, is a template
2026 conversion operator to a type dependent on the innermost template
2028 #define DECL_TEMPLATE_CONV_FN_P(NODE) \
2029 (DECL_LANG_SPECIFIC (TEMPLATE_DECL_CHECK (NODE))->u.base.template_conv_p)
2031 /* Set the overloaded operator code for NODE to CODE. */
2032 #define SET_OVERLOADED_OPERATOR_CODE(NODE, CODE) \
2033 (LANG_DECL_FN_CHECK (NODE)->operator_code = (CODE))
2035 /* If NODE is an overloaded operator, then this returns the TREE_CODE
2036 associated with the overloaded operator.
2037 DECL_ASSIGNMENT_OPERATOR_P must also be checked to determine
2038 whether or not NODE is an assignment operator. If NODE is not an
2039 overloaded operator, ERROR_MARK is returned. Since the numerical
2040 value of ERROR_MARK is zero, this macro can be used as a predicate
2041 to test whether or not NODE is an overloaded operator. */
2042 #define DECL_OVERLOADED_OPERATOR_P(NODE) \
2043 (IDENTIFIER_OPNAME_P (DECL_NAME (NODE)) \
2044 ? LANG_DECL_FN_CHECK (NODE)->operator_code : ERROR_MARK)
2046 /* Nonzero if NODE is an assignment operator (including += and such). */
2047 #define DECL_ASSIGNMENT_OPERATOR_P(NODE) \
2048 (LANG_DECL_FN_CHECK (NODE)->assignment_operator_p)
2050 /* For FUNCTION_DECLs: nonzero means that this function is a
2051 constructor or a destructor with an extra in-charge parameter to
2052 control whether or not virtual bases are constructed. */
2053 #define DECL_HAS_IN_CHARGE_PARM_P(NODE) \
2054 (LANG_DECL_FN_CHECK (NODE)->has_in_charge_parm_p)
2056 /* Nonzero if DECL is a declaration of __builtin_constant_p. */
2057 #define DECL_IS_BUILTIN_CONSTANT_P(NODE) \
2058 (TREE_CODE (NODE) == FUNCTION_DECL \
2059 && DECL_BUILT_IN_CLASS (NODE) == BUILT_IN_NORMAL \
2060 && DECL_FUNCTION_CODE (NODE) == BUILT_IN_CONSTANT_P)
2062 /* Nonzero for _DECL means that this decl appears in (or will appear
2063 in) as a member in a RECORD_TYPE or UNION_TYPE node. It is also for
2064 detecting circularity in case members are multiply defined. In the
2065 case of a VAR_DECL, it is also used to determine how program storage
2066 should be allocated. */
2067 #define DECL_IN_AGGR_P(NODE) (DECL_LANG_FLAG_3 (NODE))
2069 /* Nonzero for a VAR_DECL means that the variable's initialization (if
2070 any) has been processed. (In general, DECL_INITIALIZED_P is
2071 !DECL_EXTERN, but static data members may be initialized even if
2073 #define DECL_INITIALIZED_P(NODE) \
2074 (TREE_LANG_FLAG_1 (VAR_DECL_CHECK (NODE)))
2076 /* Nonzero for a VAR_DECL iff an explicit initializer was provided. */
2077 #define DECL_NONTRIVIALLY_INITIALIZED_P(NODE) \
2078 (TREE_LANG_FLAG_3 (VAR_DECL_CHECK (NODE)))
2080 /* Nonzero for a VAR_DECL that was initialized with a
2081 constant-expression. */
2082 #define DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P(NODE) \
2083 (TREE_LANG_FLAG_2 (VAR_DECL_CHECK (NODE)))
2085 /* Nonzero for a VAR_DECL that can be used in an integral constant
2090 An integral constant-expression can only involve ... const
2091 variables of static or enumeration types initialized with
2092 constant expressions ...
2094 The standard does not require that the expression be non-volatile.
2095 G++ implements the proposed correction in DR 457. */
2096 #define DECL_INTEGRAL_CONSTANT_VAR_P(NODE) \
2097 (TREE_CODE (NODE) == VAR_DECL \
2098 && CP_TYPE_CONST_NON_VOLATILE_P (TREE_TYPE (NODE)) \
2099 && INTEGRAL_OR_ENUMERATION_TYPE_P (TREE_TYPE (NODE)) \
2100 && DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (NODE))
2102 /* Nonzero if the DECL was initialized in the class definition itself,
2103 rather than outside the class. This is used for both static member
2104 VAR_DECLS, and FUNCTION_DECLS that are defined in the class. */
2105 #define DECL_INITIALIZED_IN_CLASS_P(DECL) \
2106 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \
2107 ->u.base.initialized_in_class)
2109 /* Nonzero if the DECL is used in the sense of 3.2 [basic.def.odr].
2110 Only available for decls with DECL_LANG_SPECIFIC. */
2111 #define DECL_ODR_USED(DECL) \
2112 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \
2115 /* Nonzero for DECL means that this decl is just a friend declaration,
2116 and should not be added to the list of members for this class. */
2117 #define DECL_FRIEND_P(NODE) (DECL_LANG_SPECIFIC (NODE)->u.base.friend_attr)
2119 /* A TREE_LIST of the types which have befriended this FUNCTION_DECL. */
2120 #define DECL_BEFRIENDING_CLASSES(NODE) \
2121 (LANG_DECL_FN_CHECK (NODE)->befriending_classes)
2123 /* Nonzero for FUNCTION_DECL means that this decl is a static
2125 #define DECL_STATIC_FUNCTION_P(NODE) \
2126 (LANG_DECL_FN_CHECK (NODE)->static_function)
2128 /* Nonzero for FUNCTION_DECL means that this decl is a non-static
2130 #define DECL_NONSTATIC_MEMBER_FUNCTION_P(NODE) \
2131 (TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE)
2133 /* Nonzero for FUNCTION_DECL means that this decl is a member function
2134 (static or non-static). */
2135 #define DECL_FUNCTION_MEMBER_P(NODE) \
2136 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) || DECL_STATIC_FUNCTION_P (NODE))
2138 /* Nonzero for FUNCTION_DECL means that this member function
2139 has `this' as const X *const. */
2140 #define DECL_CONST_MEMFUNC_P(NODE) \
2141 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
2142 && CP_TYPE_CONST_P (TREE_TYPE (TREE_VALUE \
2143 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
2145 /* Nonzero for FUNCTION_DECL means that this member function
2146 has `this' as volatile X *const. */
2147 #define DECL_VOLATILE_MEMFUNC_P(NODE) \
2148 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
2149 && CP_TYPE_VOLATILE_P (TREE_TYPE (TREE_VALUE \
2150 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
2152 /* Nonzero for a DECL means that this member is a non-static member. */
2153 #define DECL_NONSTATIC_MEMBER_P(NODE) \
2154 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
2155 || TREE_CODE (NODE) == FIELD_DECL)
2157 /* Nonzero for _DECL means that this member object type
2159 #define DECL_MUTABLE_P(NODE) (DECL_LANG_FLAG_0 (NODE))
2161 /* Nonzero for _DECL means that this constructor or conversion function is
2163 #define DECL_NONCONVERTING_P(NODE) \
2164 (LANG_DECL_FN_CHECK (NODE)->nonconverting)
2166 /* Nonzero for FUNCTION_DECL means that this member function is a pure
2167 virtual function. */
2168 #define DECL_PURE_VIRTUAL_P(NODE) \
2169 (LANG_DECL_FN_CHECK (NODE)->pure_virtual)
2171 /* True (in a FUNCTION_DECL) if NODE is a virtual function that is an
2172 invalid overrider for a function from a base class. Once we have
2173 complained about an invalid overrider we avoid complaining about it
2175 #define DECL_INVALID_OVERRIDER_P(NODE) \
2176 (DECL_LANG_FLAG_4 (NODE))
2178 /* The thunks associated with NODE, a FUNCTION_DECL. */
2179 #define DECL_THUNKS(NODE) \
2180 (LANG_DECL_FN_CHECK (NODE)->context)
2182 /* Nonzero if NODE is a thunk, rather than an ordinary function. */
2183 #define DECL_THUNK_P(NODE) \
2184 (TREE_CODE (NODE) == FUNCTION_DECL \
2185 && DECL_LANG_SPECIFIC (NODE) \
2186 && LANG_DECL_FN_CHECK (NODE)->thunk_p)
2188 /* Set DECL_THUNK_P for node. */
2189 #define SET_DECL_THUNK_P(NODE, THIS_ADJUSTING) \
2190 (LANG_DECL_FN_CHECK (NODE)->thunk_p = 1, \
2191 LANG_DECL_FN_CHECK (NODE)->this_thunk_p = (THIS_ADJUSTING))
2193 /* Nonzero if NODE is a this pointer adjusting thunk. */
2194 #define DECL_THIS_THUNK_P(NODE) \
2195 (DECL_THUNK_P (NODE) && LANG_DECL_FN_CHECK (NODE)->this_thunk_p)
2197 /* Nonzero if NODE is a result pointer adjusting thunk. */
2198 #define DECL_RESULT_THUNK_P(NODE) \
2199 (DECL_THUNK_P (NODE) && !LANG_DECL_FN_CHECK (NODE)->this_thunk_p)
2201 /* Nonzero if NODE is a FUNCTION_DECL, but not a thunk. */
2202 #define DECL_NON_THUNK_FUNCTION_P(NODE) \
2203 (TREE_CODE (NODE) == FUNCTION_DECL && !DECL_THUNK_P (NODE))
2205 /* Nonzero if NODE is `extern "C"'. */
2206 #define DECL_EXTERN_C_P(NODE) \
2207 (DECL_LANGUAGE (NODE) == lang_c)
2209 /* Nonzero if NODE is an `extern "C"' function. */
2210 #define DECL_EXTERN_C_FUNCTION_P(NODE) \
2211 (DECL_NON_THUNK_FUNCTION_P (NODE) && DECL_EXTERN_C_P (NODE))
2213 /* True iff DECL is an entity with vague linkage whose definition is
2214 available in this translation unit. */
2215 #define DECL_REPO_AVAILABLE_P(NODE) \
2216 (DECL_LANG_SPECIFIC (NODE)->u.base.repo_available_p)
2218 /* True if DECL is declared 'constexpr'. */
2219 #define DECL_DECLARED_CONSTEXPR_P(DECL) \
2220 DECL_LANG_FLAG_8 (VAR_OR_FUNCTION_DECL_CHECK (DECL))
2222 /* Nonzero if this DECL is the __PRETTY_FUNCTION__ variable in a
2223 template function. */
2224 #define DECL_PRETTY_FUNCTION_P(NODE) \
2225 (TREE_LANG_FLAG_0 (VAR_DECL_CHECK (NODE)))
2227 /* The _TYPE context in which this _DECL appears. This field holds the
2228 class where a virtual function instance is actually defined. */
2229 #define DECL_CLASS_CONTEXT(NODE) \
2230 (DECL_CLASS_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : NULL_TREE)
2232 /* For a non-member friend function, the class (if any) in which this
2233 friend was defined. For example, given:
2235 struct S { friend void f (); };
2237 the DECL_FRIEND_CONTEXT for `f' will be `S'. */
2238 #define DECL_FRIEND_CONTEXT(NODE) \
2239 ((DECL_DECLARES_FUNCTION_P (NODE) \
2240 && DECL_FRIEND_P (NODE) && !DECL_FUNCTION_MEMBER_P (NODE)) \
2241 ? LANG_DECL_FN_CHECK (NODE)->context \
2244 /* Set the DECL_FRIEND_CONTEXT for NODE to CONTEXT. */
2245 #define SET_DECL_FRIEND_CONTEXT(NODE, CONTEXT) \
2246 (LANG_DECL_FN_CHECK (NODE)->context = (CONTEXT))
2248 /* NULL_TREE in DECL_CONTEXT represents the global namespace. */
2249 #define CP_DECL_CONTEXT(NODE) \
2250 (DECL_CONTEXT (NODE) ? DECL_CONTEXT (NODE) : global_namespace)
2251 #define CP_TYPE_CONTEXT(NODE) \
2252 (TYPE_CONTEXT (NODE) ? TYPE_CONTEXT (NODE) : global_namespace)
2253 #define FROB_CONTEXT(NODE) ((NODE) == global_namespace ? NULL_TREE : (NODE))
2255 /* 1 iff NODE has namespace scope, including the global namespace. */
2256 #define DECL_NAMESPACE_SCOPE_P(NODE) \
2257 (!DECL_TEMPLATE_PARM_P (NODE) \
2258 && TREE_CODE (CP_DECL_CONTEXT (NODE)) == NAMESPACE_DECL)
2260 #define TYPE_NAMESPACE_SCOPE_P(NODE) \
2261 (TREE_CODE (CP_TYPE_CONTEXT (NODE)) == NAMESPACE_DECL)
2263 /* 1 iff NODE is a class member. */
2264 #define DECL_CLASS_SCOPE_P(NODE) \
2265 (DECL_CONTEXT (NODE) && TYPE_P (DECL_CONTEXT (NODE)))
2267 #define TYPE_CLASS_SCOPE_P(NODE) \
2268 (TYPE_CONTEXT (NODE) && TYPE_P (TYPE_CONTEXT (NODE)))
2270 /* 1 iff NODE is function-local. */
2271 #define DECL_FUNCTION_SCOPE_P(NODE) \
2272 (DECL_CONTEXT (NODE) \
2273 && TREE_CODE (DECL_CONTEXT (NODE)) == FUNCTION_DECL)
2275 #define TYPE_FUNCTION_SCOPE_P(NODE) \
2276 (TYPE_CONTEXT (NODE) && TREE_CODE (TYPE_CONTEXT (NODE)) == FUNCTION_DECL)
2278 /* 1 iff VAR_DECL node NODE is a type-info decl. This flag is set for
2279 both the primary typeinfo object and the associated NTBS name. */
2280 #define DECL_TINFO_P(NODE) TREE_LANG_FLAG_4 (VAR_DECL_CHECK (NODE))
2282 /* 1 iff VAR_DECL node NODE is virtual table or VTT. */
2283 #define DECL_VTABLE_OR_VTT_P(NODE) TREE_LANG_FLAG_5 (VAR_DECL_CHECK (NODE))
2285 /* Returns 1 iff VAR_DECL is a construction virtual table.
2286 DECL_VTABLE_OR_VTT_P will be true in this case and must be checked
2287 before using this macro. */
2288 #define DECL_CONSTRUCTION_VTABLE_P(NODE) \
2289 TREE_LANG_FLAG_6 (VAR_DECL_CHECK (NODE))
2291 /* 1 iff NODE is function-local, but for types. */
2292 #define LOCAL_CLASS_P(NODE) \
2293 (decl_function_context (TYPE_MAIN_DECL (NODE)) != NULL_TREE)
2295 /* For a NAMESPACE_DECL: the list of using namespace directives
2296 The PURPOSE is the used namespace, the value is the namespace
2297 that is the common ancestor. */
2298 #define DECL_NAMESPACE_USING(NODE) DECL_VINDEX (NAMESPACE_DECL_CHECK (NODE))
2300 /* In a NAMESPACE_DECL, the DECL_INITIAL is used to record all users
2301 of a namespace, to record the transitive closure of using namespace. */
2302 #define DECL_NAMESPACE_USERS(NODE) DECL_INITIAL (NAMESPACE_DECL_CHECK (NODE))
2304 /* In a NAMESPACE_DECL, the list of namespaces which have associated
2305 themselves with this one. */
2306 #define DECL_NAMESPACE_ASSOCIATIONS(NODE) \
2307 (NAMESPACE_DECL_CHECK (NODE)->decl_non_common.saved_tree)
2309 /* In a NAMESPACE_DECL, points to the original namespace if this is
2310 a namespace alias. */
2311 #define DECL_NAMESPACE_ALIAS(NODE) \
2312 DECL_ABSTRACT_ORIGIN (NAMESPACE_DECL_CHECK (NODE))
2313 #define ORIGINAL_NAMESPACE(NODE) \
2314 (DECL_NAMESPACE_ALIAS (NODE) ? DECL_NAMESPACE_ALIAS (NODE) : (NODE))
2316 /* Nonzero if NODE is the std namespace. */
2317 #define DECL_NAMESPACE_STD_P(NODE) \
2318 (TREE_CODE (NODE) == NAMESPACE_DECL \
2319 && CP_DECL_CONTEXT (NODE) == global_namespace \
2320 && DECL_NAME (NODE) == std_identifier)
2322 /* In a TREE_LIST concatenating using directives, indicate indirect
2324 #define TREE_INDIRECT_USING(NODE) (TREE_LIST_CHECK (NODE)->base.lang_flag_0)
2326 /* In a TREE_LIST in an attribute list, indicates that the attribute
2327 must be applied at instantiation time. */
2328 #define ATTR_IS_DEPENDENT(NODE) (TREE_LIST_CHECK (NODE)->base.lang_flag_0)
2330 extern tree decl_shadowed_for_var_lookup (tree);
2331 extern void decl_shadowed_for_var_insert (tree, tree);
2333 /* Non zero if this is a using decl for a dependent scope. */
2334 #define DECL_DEPENDENT_P(NODE) DECL_LANG_FLAG_0 (USING_DECL_CHECK (NODE))
2336 /* The scope named in a using decl. */
2337 #define USING_DECL_SCOPE(NODE) TREE_TYPE (USING_DECL_CHECK (NODE))
2339 /* The decls named by a using decl. */
2340 #define USING_DECL_DECLS(NODE) DECL_INITIAL (USING_DECL_CHECK (NODE))
2342 /* In a VAR_DECL, true if we have a shadowed local variable
2343 in the shadowed var table for this VAR_DECL. */
2344 #define DECL_HAS_SHADOWED_FOR_VAR_P(NODE) \
2345 (VAR_DECL_CHECK (NODE)->decl_with_vis.shadowed_for_var_p)
2347 /* In a VAR_DECL for a variable declared in a for statement,
2348 this is the shadowed (local) variable. */
2349 #define DECL_SHADOWED_FOR_VAR(NODE) \
2350 (DECL_HAS_SHADOWED_FOR_VAR_P(NODE) ? decl_shadowed_for_var_lookup (NODE) : NULL)
2352 #define SET_DECL_SHADOWED_FOR_VAR(NODE, VAL) \
2353 (decl_shadowed_for_var_insert (NODE, VAL))
2355 /* In a FUNCTION_DECL, this is nonzero if this function was defined in
2356 the class definition. We have saved away the text of the function,
2357 but have not yet processed it. */
2358 #define DECL_PENDING_INLINE_P(NODE) \
2359 (LANG_DECL_FN_CHECK (NODE)->pending_inline_p)
2361 /* If DECL_PENDING_INLINE_P holds, this is the saved text of the
2363 #define DECL_PENDING_INLINE_INFO(NODE) \
2364 (LANG_DECL_FN_CHECK (NODE)->u.pending_inline_info)
2366 /* For a class type: if this structure has many fields, we'll sort them
2367 and put them into a TREE_VEC. */
2368 #define CLASSTYPE_SORTED_FIELDS(NODE) \
2369 (LANG_TYPE_CLASS_CHECK (NODE)->sorted_fields)
2371 /* If non-NULL for a VAR_DECL, FUNCTION_DECL, TYPE_DECL or
2372 TEMPLATE_DECL, the entity is either a template specialization (if
2373 DECL_USE_TEMPLATE is nonzero) or the abstract instance of the
2376 In either case, DECL_TEMPLATE_INFO is a TREE_LIST, whose
2377 TREE_PURPOSE is the TEMPLATE_DECL of which this entity is a
2378 specialization or abstract instance. The TREE_VALUE is the
2379 template arguments used to specialize the template.
2383 template <typename T> struct S { friend void f(T) {} };
2385 In this case, S<int>::f is, from the point of view of the compiler,
2386 an instantiation of a template -- but, from the point of view of
2387 the language, each instantiation of S results in a wholly unrelated
2388 global function f. In this case, DECL_TEMPLATE_INFO for S<int>::f
2389 will be non-NULL, but DECL_USE_TEMPLATE will be zero. */
2390 #define DECL_TEMPLATE_INFO(NODE) \
2391 (DECL_LANG_SPECIFIC (VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK (NODE)) \
2392 ->u.min.template_info)
2394 /* For a VAR_DECL, indicates that the variable is actually a
2395 non-static data member of anonymous union that has been promoted to
2397 #define DECL_ANON_UNION_VAR_P(NODE) \
2398 (DECL_LANG_FLAG_4 (VAR_DECL_CHECK (NODE)))
2400 /* Template information for a RECORD_TYPE or UNION_TYPE. */
2401 #define CLASSTYPE_TEMPLATE_INFO(NODE) \
2402 (LANG_TYPE_CLASS_CHECK (RECORD_OR_UNION_CHECK (NODE))->template_info)
2404 /* Template information for an ENUMERAL_TYPE. Although an enumeration may
2405 not be a primary template, it may be declared within the scope of a
2406 primary template and the enumeration constants may depend on
2407 non-type template parameters. */
2408 #define ENUM_TEMPLATE_INFO(NODE) \
2409 (TYPE_LANG_SLOT_1 (ENUMERAL_TYPE_CHECK (NODE)))
2411 /* Template information for a template template parameter. */
2412 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO(NODE) \
2413 (LANG_TYPE_CLASS_CHECK (BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK (NODE)) \
2416 /* Template information for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2417 #define TYPE_TEMPLATE_INFO(NODE) \
2418 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2419 ? ENUM_TEMPLATE_INFO (NODE) : \
2420 (TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM \
2421 ? TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO (NODE) : \
2422 (TYPE_LANG_SPECIFIC (NODE) \
2423 ? CLASSTYPE_TEMPLATE_INFO (NODE) \
2426 /* Set the template information for an ENUMERAL_, RECORD_, or
2427 UNION_TYPE to VAL. */
2428 #define SET_TYPE_TEMPLATE_INFO(NODE, VAL) \
2429 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2430 ? (ENUM_TEMPLATE_INFO (NODE) = (VAL)) \
2431 : (CLASSTYPE_TEMPLATE_INFO (NODE) = (VAL)))
2433 #define TI_TEMPLATE(NODE) (TREE_PURPOSE (NODE))
2434 #define TI_ARGS(NODE) (TREE_VALUE (NODE))
2435 #define TI_PENDING_TEMPLATE_FLAG(NODE) TREE_LANG_FLAG_1 (NODE)
2436 /* The list of typedefs - used in the template - that need
2437 access checking at template instantiation time. */
2438 #define TI_TYPEDEFS_NEEDING_ACCESS_CHECKING(NODE) (TREE_CHAIN (NODE))
2440 /* We use TREE_VECs to hold template arguments. If there is only one
2441 level of template arguments, then the TREE_VEC contains the
2442 arguments directly. If there is more than one level of template
2443 arguments, then each entry in the TREE_VEC is itself a TREE_VEC,
2444 containing the template arguments for a single level. The first
2445 entry in the outer TREE_VEC is the outermost level of template
2446 parameters; the last is the innermost.
2448 It is incorrect to ever form a template argument vector containing
2449 only one level of arguments, but which is a TREE_VEC containing as
2450 its only entry the TREE_VEC for that level. */
2452 /* Nonzero if the template arguments is actually a vector of vectors,
2453 rather than just a vector. */
2454 #define TMPL_ARGS_HAVE_MULTIPLE_LEVELS(NODE) \
2455 (NODE && TREE_VEC_LENGTH (NODE) && TREE_VEC_ELT (NODE, 0) \
2456 && TREE_CODE (TREE_VEC_ELT (NODE, 0)) == TREE_VEC)
2458 /* The depth of a template argument vector. When called directly by
2459 the parser, we use a TREE_LIST rather than a TREE_VEC to represent
2460 template arguments. In fact, we may even see NULL_TREE if there
2461 are no template arguments. In both of those cases, there is only
2462 one level of template arguments. */
2463 #define TMPL_ARGS_DEPTH(NODE) \
2464 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (NODE) ? TREE_VEC_LENGTH (NODE) : 1)
2466 /* The LEVELth level of the template ARGS. The outermost level of
2467 args is level 1, not level 0. */
2468 #define TMPL_ARGS_LEVEL(ARGS, LEVEL) \
2469 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (ARGS) \
2470 ? TREE_VEC_ELT (ARGS, (LEVEL) - 1) : (ARGS))
2472 /* Set the LEVELth level of the template ARGS to VAL. This macro does
2473 not work with single-level argument vectors. */
2474 #define SET_TMPL_ARGS_LEVEL(ARGS, LEVEL, VAL) \
2475 (TREE_VEC_ELT (ARGS, (LEVEL) - 1) = (VAL))
2477 /* Accesses the IDXth parameter in the LEVELth level of the ARGS. */
2478 #define TMPL_ARG(ARGS, LEVEL, IDX) \
2479 (TREE_VEC_ELT (TMPL_ARGS_LEVEL (ARGS, LEVEL), IDX))
2481 /* Given a single level of template arguments in NODE, return the
2482 number of arguments. */
2483 #define NUM_TMPL_ARGS(NODE) \
2484 (TREE_VEC_LENGTH (NODE))
2486 /* Returns the innermost level of template arguments in ARGS. */
2487 #define INNERMOST_TEMPLATE_ARGS(NODE) \
2488 (get_innermost_template_args ((NODE), 1))
2490 /* The number of levels of template parameters given by NODE. */
2491 #define TMPL_PARMS_DEPTH(NODE) \
2492 ((HOST_WIDE_INT) TREE_INT_CST_LOW (TREE_PURPOSE (NODE)))
2494 /* The TEMPLATE_DECL instantiated or specialized by NODE. This
2495 TEMPLATE_DECL will be the immediate parent, not the most general
2496 template. For example, in:
2498 template <class T> struct S { template <class U> void f(U); }
2500 the FUNCTION_DECL for S<int>::f<double> will have, as its
2501 DECL_TI_TEMPLATE, `template <class U> S<int>::f<U>'.
2503 As a special case, for a member friend template of a template
2504 class, this value will not be a TEMPLATE_DECL, but rather an
2505 IDENTIFIER_NODE or OVERLOAD indicating the name of the template and
2506 any explicit template arguments provided. For example, in:
2508 template <class T> struct S { friend void f<int>(int, double); }
2510 the DECL_TI_TEMPLATE will be an IDENTIFIER_NODE for `f' and the
2511 DECL_TI_ARGS will be {int}. */
2512 #define DECL_TI_TEMPLATE(NODE) TI_TEMPLATE (DECL_TEMPLATE_INFO (NODE))
2514 /* The template arguments used to obtain this decl from the most
2515 general form of DECL_TI_TEMPLATE. For the example given for
2516 DECL_TI_TEMPLATE, the DECL_TI_ARGS will be {int, double}. These
2517 are always the full set of arguments required to instantiate this
2518 declaration from the most general template specialized here. */
2519 #define DECL_TI_ARGS(NODE) TI_ARGS (DECL_TEMPLATE_INFO (NODE))
2521 /* The TEMPLATE_DECL associated with NODE, a class type. Even if NODE
2522 will be generated from a partial specialization, the TEMPLATE_DECL
2523 referred to here will be the original template. For example,
2526 template <typename T> struct S {};
2527 template <typename T> struct S<T*> {};
2529 the CLASSTPYE_TI_TEMPLATE for S<int*> will be S, not the S<T*>. */
2530 #define CLASSTYPE_TI_TEMPLATE(NODE) TI_TEMPLATE (CLASSTYPE_TEMPLATE_INFO (NODE))
2531 #define CLASSTYPE_TI_ARGS(NODE) TI_ARGS (CLASSTYPE_TEMPLATE_INFO (NODE))
2533 /* For a template instantiation TYPE, returns the TYPE corresponding
2534 to the primary template. Otherwise returns TYPE itself. */
2535 #define CLASSTYPE_PRIMARY_TEMPLATE_TYPE(TYPE) \
2536 ((CLASSTYPE_USE_TEMPLATE ((TYPE)) \
2537 && !CLASSTYPE_TEMPLATE_SPECIALIZATION ((TYPE))) \
2538 ? TREE_TYPE (DECL_TEMPLATE_RESULT (DECL_PRIMARY_TEMPLATE \
2539 (CLASSTYPE_TI_TEMPLATE ((TYPE))))) \
2542 /* Like CLASS_TI_TEMPLATE, but also works for ENUMERAL_TYPEs. */
2543 #define TYPE_TI_TEMPLATE(NODE) \
2544 (TI_TEMPLATE (TYPE_TEMPLATE_INFO (NODE)))
2546 /* Like DECL_TI_ARGS, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2547 #define TYPE_TI_ARGS(NODE) \
2548 (TI_ARGS (TYPE_TEMPLATE_INFO (NODE)))
2550 #define INNERMOST_TEMPLATE_PARMS(NODE) TREE_VALUE (NODE)
2552 /* Nonzero if NODE (a TEMPLATE_DECL) is a member template, in the
2553 sense of [temp.mem]. */
2554 #define DECL_MEMBER_TEMPLATE_P(NODE) \
2555 (DECL_LANG_FLAG_1 (TEMPLATE_DECL_CHECK (NODE)))
2557 /* Nonzero if the NODE corresponds to the template parameters for a
2558 member template, whose inline definition is being processed after
2559 the class definition is complete. */
2560 #define TEMPLATE_PARMS_FOR_INLINE(NODE) TREE_LANG_FLAG_1 (NODE)
2562 /* Determine if a parameter (i.e., a PARM_DECL) is a function
2564 #define FUNCTION_PARAMETER_PACK_P(NODE) \
2565 (DECL_LANG_FLAG_1 (PARM_DECL_CHECK (NODE)))
2567 /* Determines if NODE is an expansion of one or more parameter packs,
2568 e.g., a TYPE_PACK_EXPANSION or EXPR_PACK_EXPANSION. */
2569 #define PACK_EXPANSION_P(NODE) \
2570 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION \
2571 || TREE_CODE (NODE) == EXPR_PACK_EXPANSION)
2573 /* Extracts the type or expression pattern from a TYPE_PACK_EXPANSION or
2574 EXPR_PACK_EXPANSION. */
2575 #define PACK_EXPANSION_PATTERN(NODE) \
2576 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION? TREE_TYPE (NODE) \
2577 : TREE_OPERAND (NODE, 0))
2579 /* Sets the type or expression pattern for a TYPE_PACK_EXPANSION or
2580 EXPR_PACK_EXPANSION. */
2581 #define SET_PACK_EXPANSION_PATTERN(NODE,VALUE) \
2582 if (TREE_CODE (NODE) == TYPE_PACK_EXPANSION) \
2583 TREE_TYPE (NODE) = VALUE; \
2585 TREE_OPERAND (NODE, 0) = VALUE
2587 /* The list of parameter packs used in the PACK_EXPANSION_* node. The
2588 TREE_VALUE of each TREE_LIST contains the parameter packs. */
2589 #define PACK_EXPANSION_PARAMETER_PACKS(NODE) TREE_CHAIN (NODE)
2591 /* Determine if this is an argument pack. */
2592 #define ARGUMENT_PACK_P(NODE) \
2593 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK \
2594 || TREE_CODE (NODE) == NONTYPE_ARGUMENT_PACK)
2596 /* The arguments stored in an argument pack. Arguments are stored in a
2597 TREE_VEC, which may have length zero. */
2598 #define ARGUMENT_PACK_ARGS(NODE) \
2599 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK? TREE_TYPE (NODE) \
2600 : TREE_OPERAND (NODE, 0))
2602 /* Set the arguments stored in an argument pack. VALUE must be a
2604 #define SET_ARGUMENT_PACK_ARGS(NODE,VALUE) \
2605 if (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK) \
2606 TREE_TYPE (NODE) = VALUE; \
2608 TREE_OPERAND (NODE, 0) = VALUE
2610 /* Whether the argument pack is "incomplete", meaning that more
2611 arguments can still be deduced. Incomplete argument packs are only
2612 used when the user has provided an explicit template argument list
2613 for a variadic function template. Some of the explicit template
2614 arguments will be placed into the beginning of the argument pack,
2615 but additional arguments might still be deduced. */
2616 #define ARGUMENT_PACK_INCOMPLETE_P(NODE) \
2617 TREE_LANG_FLAG_0 (ARGUMENT_PACK_ARGS (NODE))
2619 /* When ARGUMENT_PACK_INCOMPLETE_P, stores the explicit template
2620 arguments used to fill this pack. */
2621 #define ARGUMENT_PACK_EXPLICIT_ARGS(NODE) \
2622 TREE_TYPE (ARGUMENT_PACK_ARGS (NODE))
2624 /* In an ARGUMENT_PACK_SELECT, the argument pack from which an
2625 argument will be selected. */
2626 #define ARGUMENT_PACK_SELECT_FROM_PACK(NODE) \
2627 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->argument_pack)
2629 /* In an ARGUMENT_PACK_SELECT, the index of the argument we want to
2631 #define ARGUMENT_PACK_SELECT_INDEX(NODE) \
2632 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->index)
2634 /* In an ARGUMENT_PACK_SELECT, the actual underlying argument that the
2635 ARGUMENT_PACK_SELECT represents. */
2636 #define ARGUMENT_PACK_SELECT_ARG(NODE) \
2637 TREE_VEC_ELT (ARGUMENT_PACK_ARGS (ARGUMENT_PACK_SELECT_FROM_PACK (NODE)), \
2638 ARGUMENT_PACK_SELECT_INDEX (NODE));
2640 /* In a FUNCTION_DECL, the saved language-specific per-function data. */
2641 #define DECL_SAVED_FUNCTION_DATA(NODE) \
2642 (LANG_DECL_FN_CHECK (FUNCTION_DECL_CHECK (NODE)) \
2643 ->u.saved_language_function)
2645 /* Indicates an indirect_expr is for converting a reference. */
2646 #define REFERENCE_REF_P(NODE) \
2647 TREE_LANG_FLAG_0 (INDIRECT_REF_CHECK (NODE))
2649 #define NEW_EXPR_USE_GLOBAL(NODE) \
2650 TREE_LANG_FLAG_0 (NEW_EXPR_CHECK (NODE))
2651 #define DELETE_EXPR_USE_GLOBAL(NODE) \
2652 TREE_LANG_FLAG_0 (DELETE_EXPR_CHECK (NODE))
2653 #define DELETE_EXPR_USE_VEC(NODE) \
2654 TREE_LANG_FLAG_1 (DELETE_EXPR_CHECK (NODE))
2656 /* Indicates that this is a non-dependent COMPOUND_EXPR which will
2657 resolve to a function call. */
2658 #define COMPOUND_EXPR_OVERLOADED(NODE) \
2659 TREE_LANG_FLAG_0 (COMPOUND_EXPR_CHECK (NODE))
2661 /* In a CALL_EXPR appearing in a template, true if Koenig lookup
2662 should be performed at instantiation time. */
2663 #define KOENIG_LOOKUP_P(NODE) TREE_LANG_FLAG_0 (CALL_EXPR_CHECK (NODE))
2665 /* Indicates whether a string literal has been parenthesized. Such
2666 usages are disallowed in certain circumstances. */
2668 #define PAREN_STRING_LITERAL_P(NODE) \
2669 TREE_LANG_FLAG_0 (STRING_CST_CHECK (NODE))
2671 /* Nonzero if this AGGR_INIT_EXPR provides for initialization via a
2672 constructor call, rather than an ordinary function call. */
2673 #define AGGR_INIT_VIA_CTOR_P(NODE) \
2674 TREE_LANG_FLAG_0 (AGGR_INIT_EXPR_CHECK (NODE))
2676 /* Nonzero if expanding this AGGR_INIT_EXPR should first zero-initialize
2678 #define AGGR_INIT_ZERO_FIRST(NODE) \
2679 TREE_LANG_FLAG_2 (AGGR_INIT_EXPR_CHECK (NODE))
2681 /* AGGR_INIT_EXPR accessors. These are equivalent to the CALL_EXPR
2682 accessors, except for AGGR_INIT_EXPR_SLOT (which takes the place of
2683 CALL_EXPR_STATIC_CHAIN). */
2685 #define AGGR_INIT_EXPR_FN(NODE) TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 1)
2686 #define AGGR_INIT_EXPR_SLOT(NODE) \
2687 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 2)
2688 #define AGGR_INIT_EXPR_ARG(NODE, I) \
2689 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), (I) + 3)
2690 #define aggr_init_expr_nargs(NODE) (VL_EXP_OPERAND_LENGTH(NODE) - 3)
2692 /* AGGR_INIT_EXPR_ARGP returns a pointer to the argument vector for NODE.
2693 We can't use &AGGR_INIT_EXPR_ARG (NODE, 0) because that will complain if
2694 the argument count is zero when checking is enabled. Instead, do
2695 the pointer arithmetic to advance past the 3 fixed operands in a
2696 AGGR_INIT_EXPR. That produces a valid pointer to just past the end of
2697 the operand array, even if it's not valid to dereference it. */
2698 #define AGGR_INIT_EXPR_ARGP(NODE) \
2699 (&(TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 0)) + 3)
2701 /* Abstract iterators for AGGR_INIT_EXPRs. */
2703 /* Structure containing iterator state. */
2704 typedef struct GTY (()) aggr_init_expr_arg_iterator_d {
2705 tree t; /* the aggr_init_expr */
2706 int n; /* argument count */
2707 int i; /* next argument index */
2708 } aggr_init_expr_arg_iterator;
2710 /* Initialize the abstract argument list iterator object ITER with the
2711 arguments from AGGR_INIT_EXPR node EXP. */
2713 init_aggr_init_expr_arg_iterator (tree exp,
2714 aggr_init_expr_arg_iterator *iter)
2717 iter->n = aggr_init_expr_nargs (exp);
2721 /* Return the next argument from abstract argument list iterator object ITER,
2722 and advance its state. Return NULL_TREE if there are no more arguments. */
2724 next_aggr_init_expr_arg (aggr_init_expr_arg_iterator *iter)
2727 if (iter->i >= iter->n)
2729 result = AGGR_INIT_EXPR_ARG (iter->t, iter->i);
2734 /* Initialize the abstract argument list iterator object ITER, then advance
2735 past and return the first argument. Useful in for expressions, e.g.
2736 for (arg = first_aggr_init_expr_arg (exp, &iter); arg;
2737 arg = next_aggr_init_expr_arg (&iter)) */
2739 first_aggr_init_expr_arg (tree exp, aggr_init_expr_arg_iterator *iter)
2741 init_aggr_init_expr_arg_iterator (exp, iter);
2742 return next_aggr_init_expr_arg (iter);
2745 /* Test whether there are more arguments in abstract argument list iterator
2746 ITER, without changing its state. */
2748 more_aggr_init_expr_args_p (const aggr_init_expr_arg_iterator *iter)
2750 return (iter->i < iter->n);
2753 /* Iterate through each argument ARG of AGGR_INIT_EXPR CALL, using variable
2754 ITER (of type aggr_init_expr_arg_iterator) to hold the iteration state. */
2755 #define FOR_EACH_AGGR_INIT_EXPR_ARG(arg, iter, call) \
2756 for ((arg) = first_aggr_init_expr_arg ((call), &(iter)); (arg); \
2757 (arg) = next_aggr_init_expr_arg (&(iter)))
2759 /* VEC_INIT_EXPR accessors. */
2760 #define VEC_INIT_EXPR_SLOT(NODE) TREE_OPERAND (NODE, 0)
2761 #define VEC_INIT_EXPR_INIT(NODE) TREE_OPERAND (NODE, 1)
2763 /* The TYPE_MAIN_DECL for a class template type is a TYPE_DECL, not a
2764 TEMPLATE_DECL. This macro determines whether or not a given class
2765 type is really a template type, as opposed to an instantiation or
2766 specialization of one. */
2767 #define CLASSTYPE_IS_TEMPLATE(NODE) \
2768 (CLASSTYPE_TEMPLATE_INFO (NODE) \
2769 && !CLASSTYPE_USE_TEMPLATE (NODE) \
2770 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE)))
2772 /* The name used by the user to name the typename type. Typically,
2773 this is an IDENTIFIER_NODE, and the same as the DECL_NAME on the
2774 corresponding TYPE_DECL. However, this may also be a
2775 TEMPLATE_ID_EXPR if we had something like `typename X::Y<T>'. */
2776 #define TYPENAME_TYPE_FULLNAME(NODE) (TYPENAME_TYPE_CHECK (NODE))->type.values
2778 /* True if a TYPENAME_TYPE was declared as an "enum". */
2779 #define TYPENAME_IS_ENUM_P(NODE) \
2780 (TREE_LANG_FLAG_0 (TYPENAME_TYPE_CHECK (NODE)))
2782 /* True if a TYPENAME_TYPE was declared as a "class", "struct", or
2784 #define TYPENAME_IS_CLASS_P(NODE) \
2785 (TREE_LANG_FLAG_1 (TYPENAME_TYPE_CHECK (NODE)))
2787 /* True if a TYPENAME_TYPE is in the process of being resolved. */
2788 #define TYPENAME_IS_RESOLVING_P(NODE) \
2789 (TREE_LANG_FLAG_2 (TYPENAME_TYPE_CHECK (NODE)))
2791 /* Nonzero in INTEGER_CST means that this int is negative by dint of
2792 using a twos-complement negated operand. */
2793 #define TREE_NEGATED_INT(NODE) TREE_LANG_FLAG_0 (INTEGER_CST_CHECK (NODE))
2797 A class that declares or inherits a virtual function is called a
2798 polymorphic class. */
2799 #define TYPE_POLYMORPHIC_P(NODE) (TREE_LANG_FLAG_2 (NODE))
2801 /* Nonzero if this class has a virtual function table pointer. */
2802 #define TYPE_CONTAINS_VPTR_P(NODE) \
2803 (TYPE_POLYMORPHIC_P (NODE) || CLASSTYPE_VBASECLASSES (NODE))
2805 /* This flag is true of a local VAR_DECL if it was declared in a for
2806 statement, but we are no longer in the scope of the for. */
2807 #define DECL_DEAD_FOR_LOCAL(NODE) DECL_LANG_FLAG_7 (VAR_DECL_CHECK (NODE))
2809 /* This flag is set on a VAR_DECL that is a DECL_DEAD_FOR_LOCAL
2810 if we already emitted a warning about using it. */
2811 #define DECL_ERROR_REPORTED(NODE) DECL_LANG_FLAG_0 (VAR_DECL_CHECK (NODE))
2813 /* Nonzero if NODE is a FUNCTION_DECL (for a function with global
2814 scope) declared in a local scope. */
2815 #define DECL_LOCAL_FUNCTION_P(NODE) \
2816 DECL_LANG_FLAG_0 (FUNCTION_DECL_CHECK (NODE))
2818 /* Nonzero if NODE is a DECL which we know about but which has not
2819 been explicitly declared, such as a built-in function or a friend
2820 declared inside a class. In the latter case DECL_HIDDEN_FRIEND_P
2822 #define DECL_ANTICIPATED(NODE) \
2823 (DECL_LANG_SPECIFIC (DECL_COMMON_CHECK (NODE))->u.base.anticipated_p)
2825 /* Nonzero if NODE is a FUNCTION_DECL which was declared as a friend
2826 within a class but has not been declared in the surrounding scope.
2827 The function is invisible except via argument dependent lookup. */
2828 #define DECL_HIDDEN_FRIEND_P(NODE) \
2829 (LANG_DECL_FN_CHECK (DECL_COMMON_CHECK (NODE))->hidden_friend_p)
2831 /* Nonzero if DECL has been declared threadprivate by
2832 #pragma omp threadprivate. */
2833 #define CP_DECL_THREADPRIVATE_P(DECL) \
2834 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (DECL))->u.base.threadprivate_or_deleted_p)
2836 /* Nonzero if DECL was declared with '= delete'. */
2837 #define DECL_DELETED_FN(DECL) \
2838 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->u.base.threadprivate_or_deleted_p)
2840 /* Nonzero if DECL was declared with '= default' (maybe implicitly). */
2841 #define DECL_DEFAULTED_FN(DECL) \
2842 (LANG_DECL_FN_CHECK (DECL)->defaulted_p)
2844 /* Nonzero if DECL is explicitly defaulted in the class body. */
2845 #define DECL_DEFAULTED_IN_CLASS_P(DECL) \
2846 (DECL_DEFAULTED_FN (DECL) && DECL_INITIALIZED_IN_CLASS_P (DECL))
2847 /* Nonzero if DECL was defaulted outside the class body. */
2848 #define DECL_DEFAULTED_OUTSIDE_CLASS_P(DECL) \
2849 (DECL_DEFAULTED_FN (DECL) \
2850 && !(DECL_ARTIFICIAL (DECL) || DECL_INITIALIZED_IN_CLASS_P (DECL)))
2852 /* Record whether a typedef for type `int' was actually `signed int'. */
2853 #define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP)
2855 /* Returns nonzero if DECL has external linkage, as specified by the
2856 language standard. (This predicate may hold even when the
2857 corresponding entity is not actually given external linkage in the
2858 object file; see decl_linkage for details.) */
2859 #define DECL_EXTERNAL_LINKAGE_P(DECL) \
2860 (decl_linkage (DECL) == lk_external)
2862 /* Keep these codes in ascending code order. */
2864 #define INTEGRAL_CODE_P(CODE) \
2865 ((CODE) == ENUMERAL_TYPE \
2866 || (CODE) == BOOLEAN_TYPE \
2867 || (CODE) == INTEGER_TYPE)
2869 /* [basic.fundamental]
2871 Types bool, char, wchar_t, and the signed and unsigned integer types
2872 are collectively called integral types.
2874 Note that INTEGRAL_TYPE_P, as defined in tree.h, allows enumeration
2875 types as well, which is incorrect in C++. Keep these checks in
2876 ascending code order. */
2877 #define CP_INTEGRAL_TYPE_P(TYPE) \
2878 (TREE_CODE (TYPE) == BOOLEAN_TYPE \
2879 || TREE_CODE (TYPE) == INTEGER_TYPE)
2881 /* Returns true if TYPE is an integral or enumeration name. Keep
2882 these checks in ascending code order. */
2883 #define INTEGRAL_OR_ENUMERATION_TYPE_P(TYPE) \
2884 (TREE_CODE (TYPE) == ENUMERAL_TYPE || CP_INTEGRAL_TYPE_P (TYPE))
2886 /* Returns true if TYPE is an integral or unscoped enumeration type. */
2887 #define INTEGRAL_OR_UNSCOPED_ENUMERATION_TYPE_P(TYPE) \
2888 (UNSCOPED_ENUM_P (TYPE) || CP_INTEGRAL_TYPE_P (TYPE))
2890 /* True if the class type TYPE is a literal type. */
2891 #define CLASSTYPE_LITERAL_P(TYPE) \
2892 (LANG_TYPE_CLASS_CHECK (TYPE)->is_literal)
2894 /* [basic.fundamental]
2896 Integral and floating types are collectively called arithmetic
2899 As a GNU extension, we also accept complex types.
2901 Keep these checks in ascending code order. */
2902 #define ARITHMETIC_TYPE_P(TYPE) \
2903 (CP_INTEGRAL_TYPE_P (TYPE) \
2904 || TREE_CODE (TYPE) == REAL_TYPE \
2905 || TREE_CODE (TYPE) == COMPLEX_TYPE)
2909 Arithmetic types, enumeration types, pointer types, and
2910 pointer-to-member types, are collectively called scalar types.
2912 Keep these checks in ascending code order. */
2913 #define SCALAR_TYPE_P(TYPE) \
2914 (TYPE_PTRMEM_P (TYPE) \
2915 || TREE_CODE (TYPE) == ENUMERAL_TYPE \
2916 || ARITHMETIC_TYPE_P (TYPE) \
2917 || TYPE_PTR_P (TYPE) \
2918 || TYPE_PTRMEMFUNC_P (TYPE))
2920 /* Determines whether this type is a C++0x scoped enumeration
2921 type. Scoped enumerations types are introduced via "enum class" or
2922 "enum struct", e.g.,
2928 Scoped enumeration types are different from normal (unscoped)
2929 enumeration types in several ways:
2931 - The enumerators of a scoped enumeration type are only available
2932 within the scope of the enumeration type and not in the
2933 enclosing scope. For example, the Red color can be referred to
2934 with "Color::Red" but not "Red".
2936 - Scoped enumerators and enumerations do not implicitly convert
2937 to integers or 'bool'.
2939 - The underlying type of the enum is well-defined. */
2940 #define SCOPED_ENUM_P(TYPE) \
2941 (TREE_CODE (TYPE) == ENUMERAL_TYPE && TYPE_LANG_FLAG_5 (TYPE))
2943 /* Determine whether this is an unscoped enumeration type. */
2944 #define UNSCOPED_ENUM_P(TYPE) \
2945 (TREE_CODE (TYPE) == ENUMERAL_TYPE && !TYPE_LANG_FLAG_5 (TYPE))
2947 /* Set the flag indicating whether an ENUMERAL_TYPE is a C++0x scoped
2948 enumeration type (1) or a normal (unscoped) enumeration type
2950 #define SET_SCOPED_ENUM_P(TYPE, VAL) \
2951 (TYPE_LANG_FLAG_5 (ENUMERAL_TYPE_CHECK (TYPE)) = (VAL))
2953 /* Returns the underlying type of the given enumeration type. The
2954 underlying type is determined in different ways, depending on the
2955 properties of the enum:
2957 - In C++0x, the underlying type can be explicitly specified, e.g.,
2959 enum E1 : char { ... } // underlying type is char
2961 - In a C++0x scoped enumeration, the underlying type is int
2962 unless otherwises specified:
2964 enum class E2 { ... } // underlying type is int
2966 - Otherwise, the underlying type is determined based on the
2967 values of the enumerators. In this case, the
2968 ENUM_UNDERLYING_TYPE will not be set until after the definition
2969 of the enumeration is completed by finish_enum. */
2970 #define ENUM_UNDERLYING_TYPE(TYPE) \
2971 TREE_TYPE (ENUMERAL_TYPE_CHECK (TYPE))
2975 An aggregate is an array or a class with no user-declared
2976 constructors, no private or protected non-static data members, no
2977 base classes, and no virtual functions.
2979 As an extension, we also treat vectors as aggregates. Keep these
2980 checks in ascending code order. */
2981 #define CP_AGGREGATE_TYPE_P(TYPE) \
2982 (TREE_CODE (TYPE) == VECTOR_TYPE \
2983 ||TREE_CODE (TYPE) == ARRAY_TYPE \
2984 || (CLASS_TYPE_P (TYPE) && !CLASSTYPE_NON_AGGREGATE (TYPE)))
2986 /* Nonzero for a class type means that the class type has a
2987 user-declared constructor. */
2988 #define TYPE_HAS_USER_CONSTRUCTOR(NODE) (TYPE_LANG_FLAG_1 (NODE))
2990 /* When appearing in an INDIRECT_REF, it means that the tree structure
2991 underneath is actually a call to a constructor. This is needed
2992 when the constructor must initialize local storage (which can
2993 be automatically destroyed), rather than allowing it to allocate
2994 space from the heap.
2996 When appearing in a SAVE_EXPR, it means that underneath
2997 is a call to a constructor.
2999 When appearing in a CONSTRUCTOR, the expression is a
3002 When appearing in a FIELD_DECL, it means that this field
3003 has been duly initialized in its constructor. */
3004 #define TREE_HAS_CONSTRUCTOR(NODE) (TREE_LANG_FLAG_4 (NODE))
3006 /* True if NODE is a brace-enclosed initializer. */
3007 #define BRACE_ENCLOSED_INITIALIZER_P(NODE) \
3008 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_TYPE (NODE) == init_list_type_node)
3010 /* True if NODE is a compound-literal, i.e., a brace-enclosed
3011 initializer cast to a particular type. */
3012 #define COMPOUND_LITERAL_P(NODE) \
3013 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_HAS_CONSTRUCTOR (NODE))
3015 #define EMPTY_CONSTRUCTOR_P(NODE) (TREE_CODE (NODE) == CONSTRUCTOR \
3016 && VEC_empty (constructor_elt, \
3017 CONSTRUCTOR_ELTS (NODE)) \
3018 && !TREE_HAS_CONSTRUCTOR (NODE))
3020 /* True if NODE is a init-list used as a direct-initializer, i.e.
3021 B b{1,2}, not B b({1,2}) or B b = {1,2}. */
3022 #define CONSTRUCTOR_IS_DIRECT_INIT(NODE) (TREE_LANG_FLAG_0 (CONSTRUCTOR_CHECK (NODE)))
3024 /* Nonzero means that an object of this type can not be initialized using
3025 an initializer list. */
3026 #define CLASSTYPE_NON_AGGREGATE(NODE) \
3027 (LANG_TYPE_CLASS_CHECK (NODE)->non_aggregate)
3028 #define TYPE_NON_AGGREGATE_CLASS(NODE) \
3029 (CLASS_TYPE_P (NODE) && CLASSTYPE_NON_AGGREGATE (NODE))
3031 /* Nonzero if there is a user-defined X::op=(x&) for this class. */
3032 #define TYPE_HAS_COMPLEX_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_assign_ref)
3034 /* Nonzero if there is a user-defined X::X(x&) for this class. */
3035 #define TYPE_HAS_COMPLEX_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_init_ref)
3037 /* Nonzero if there is a user-defined default constructor for this class. */
3038 #define TYPE_HAS_COMPLEX_DFLT(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_dflt)
3040 /* Nonzero if TYPE has a trivial destructor. From [class.dtor]:
3042 A destructor is trivial if it is an implicitly declared
3045 - all of the direct base classes of its class have trivial
3048 - for all of the non-static data members of its class that are
3049 of class type (or array thereof), each such class has a
3050 trivial destructor. */
3051 #define TYPE_HAS_TRIVIAL_DESTRUCTOR(NODE) \
3052 (!TYPE_HAS_NONTRIVIAL_DESTRUCTOR (NODE))
3054 /* Nonzero for _TYPE node means that this type does not have a trivial
3055 destructor. Therefore, destroying an object of this type will
3056 involve a call to a destructor. This can apply to objects of
3057 ARRAY_TYPE is the type of the elements needs a destructor. */
3058 #define TYPE_HAS_NONTRIVIAL_DESTRUCTOR(NODE) \
3059 (TYPE_LANG_FLAG_4 (NODE))
3061 /* Nonzero for class type means that the default constructor is trivial. */
3062 #define TYPE_HAS_TRIVIAL_DFLT(NODE) \
3063 (TYPE_HAS_DEFAULT_CONSTRUCTOR (NODE) && ! TYPE_HAS_COMPLEX_DFLT (NODE))
3065 /* Nonzero for class type means that copy initialization of this type can use
3067 #define TYPE_HAS_TRIVIAL_INIT_REF(NODE) \
3068 (TYPE_HAS_INIT_REF (NODE) && ! TYPE_HAS_COMPLEX_INIT_REF (NODE))
3070 /* Nonzero for class type means that assignment of this type can use
3072 #define TYPE_HAS_TRIVIAL_ASSIGN_REF(NODE) \
3073 (TYPE_HAS_ASSIGN_REF (NODE) && ! TYPE_HAS_COMPLEX_ASSIGN_REF (NODE))
3075 /* Returns true if NODE is a pointer-to-data-member. */
3076 #define TYPE_PTRMEM_P(NODE) \
3077 (TREE_CODE (NODE) == OFFSET_TYPE)
3078 /* Returns true if NODE is a pointer. */
3079 #define TYPE_PTR_P(NODE) \
3080 (TREE_CODE (NODE) == POINTER_TYPE)
3082 /* Returns true if NODE is an object type:
3086 An object type is a (possibly cv-qualified) type that is not a
3087 function type, not a reference type, and not a void type.
3089 Keep these checks in ascending order, for speed. */
3090 #define TYPE_OBJ_P(NODE) \
3091 (TREE_CODE (NODE) != REFERENCE_TYPE \
3092 && TREE_CODE (NODE) != VOID_TYPE \
3093 && TREE_CODE (NODE) != FUNCTION_TYPE \
3094 && TREE_CODE (NODE) != METHOD_TYPE)
3096 /* Returns true if NODE is a pointer to an object. Keep these checks
3097 in ascending tree code order. */
3098 #define TYPE_PTROB_P(NODE) \
3099 (TYPE_PTR_P (NODE) && TYPE_OBJ_P (TREE_TYPE (NODE)))
3101 /* Returns true if NODE is a reference to an object. Keep these checks
3102 in ascending tree code order. */
3103 #define TYPE_REF_OBJ_P(NODE) \
3104 (TREE_CODE (NODE) == REFERENCE_TYPE && TYPE_OBJ_P (TREE_TYPE (NODE)))
3106 /* True if reference type NODE is an rvalue reference */
3107 #define TYPE_REF_IS_RVALUE(NODE) \
3108 TREE_LANG_FLAG_0 (REFERENCE_TYPE_CHECK (NODE))
3110 /* Returns true if NODE is a pointer to an object, or a pointer to
3111 void. Keep these checks in ascending tree code order. */
3112 #define TYPE_PTROBV_P(NODE) \
3113 (TYPE_PTR_P (NODE) \
3114 && !(TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE \
3115 || TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE))
3117 /* Returns true if NODE is a pointer to function. */
3118 #define TYPE_PTRFN_P(NODE) \
3119 (TREE_CODE (NODE) == POINTER_TYPE \
3120 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
3122 /* Returns true if NODE is a reference to function. */
3123 #define TYPE_REFFN_P(NODE) \
3124 (TREE_CODE (NODE) == REFERENCE_TYPE \
3125 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
3127 /* Nonzero for _TYPE node means that this type is a pointer to member
3129 #define TYPE_PTRMEMFUNC_P(NODE) \
3130 (TREE_CODE (NODE) == RECORD_TYPE \
3131 && TYPE_LANG_SPECIFIC (NODE) \
3132 && TYPE_PTRMEMFUNC_FLAG (NODE))
3134 #define TYPE_PTRMEMFUNC_FLAG(NODE) \
3135 (LANG_TYPE_CLASS_CHECK (NODE)->ptrmemfunc_flag)
3137 /* Returns true if NODE is a pointer-to-member. */
3138 #define TYPE_PTR_TO_MEMBER_P(NODE) \
3139 (TYPE_PTRMEM_P (NODE) || TYPE_PTRMEMFUNC_P (NODE))
3141 /* Indicates when overload resolution may resolve to a pointer to
3142 member function. [expr.unary.op]/3 */
3143 #define PTRMEM_OK_P(NODE) \
3144 TREE_LANG_FLAG_0 (TREE_CHECK2 ((NODE), ADDR_EXPR, OFFSET_REF))
3146 /* Get the POINTER_TYPE to the METHOD_TYPE associated with this
3147 pointer to member function. TYPE_PTRMEMFUNC_P _must_ be true,
3148 before using this macro. */
3149 #define TYPE_PTRMEMFUNC_FN_TYPE(NODE) \
3150 (TREE_TYPE (TYPE_FIELDS (NODE)))
3152 /* Returns `A' for a type like `int (A::*)(double)' */
3153 #define TYPE_PTRMEMFUNC_OBJECT_TYPE(NODE) \
3154 TYPE_METHOD_BASETYPE (TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
3156 /* These are use to manipulate the canonical RECORD_TYPE from the
3157 hashed POINTER_TYPE, and can only be used on the POINTER_TYPE. */
3158 #define TYPE_GET_PTRMEMFUNC_TYPE(NODE) \
3159 (TYPE_LANG_SPECIFIC (NODE) ? LANG_TYPE_PTRMEM_CHECK (NODE)->record : NULL)
3160 #define TYPE_SET_PTRMEMFUNC_TYPE(NODE, VALUE) \
3162 if (TYPE_LANG_SPECIFIC (NODE) == NULL) \
3164 TYPE_LANG_SPECIFIC (NODE) = GGC_CNEWVAR \
3165 (struct lang_type, sizeof (struct lang_type_ptrmem)); \
3166 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.h.is_lang_type_class = 0; \
3168 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.record = (VALUE); \
3171 /* For a pointer-to-member type of the form `T X::*', this is `X'.
3172 For a type like `void (X::*)() const', this type is `X', not `const
3173 X'. To get at the `const X' you have to look at the
3174 TYPE_PTRMEM_POINTED_TO_TYPE; there, the first parameter will have
3176 #define TYPE_PTRMEM_CLASS_TYPE(NODE) \
3177 (TYPE_PTRMEM_P (NODE) \
3178 ? TYPE_OFFSET_BASETYPE (NODE) \
3179 : TYPE_PTRMEMFUNC_OBJECT_TYPE (NODE))
3181 /* For a pointer-to-member type of the form `T X::*', this is `T'. */
3182 #define TYPE_PTRMEM_POINTED_TO_TYPE(NODE) \
3183 (TYPE_PTRMEM_P (NODE) \
3184 ? TREE_TYPE (NODE) \
3185 : TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
3187 /* For a pointer-to-member constant `X::Y' this is the RECORD_TYPE for
3189 #define PTRMEM_CST_CLASS(NODE) \
3190 TYPE_PTRMEM_CLASS_TYPE (TREE_TYPE (PTRMEM_CST_CHECK (NODE)))
3192 /* For a pointer-to-member constant `X::Y' this is the _DECL for
3194 #define PTRMEM_CST_MEMBER(NODE) (((ptrmem_cst_t)PTRMEM_CST_CHECK (NODE))->member)
3196 /* The expression in question for a TYPEOF_TYPE. */
3197 #define TYPEOF_TYPE_EXPR(NODE) (TYPEOF_TYPE_CHECK (NODE))->type.values
3199 /* The expression in question for a DECLTYPE_TYPE. */
3200 #define DECLTYPE_TYPE_EXPR(NODE) (DECLTYPE_TYPE_CHECK (NODE))->type.values
3202 /* Whether the DECLTYPE_TYPE_EXPR of NODE was originally parsed as an
3203 id-expression or a member-access expression. When false, it was
3204 parsed as a full expression. */
3205 #define DECLTYPE_TYPE_ID_EXPR_OR_MEMBER_ACCESS_P(NODE) \
3206 (DECLTYPE_TYPE_CHECK (NODE))->type.string_flag
3208 /* These flags indicate that we want different semantics from normal
3209 decltype: lambda capture just drops references, lambda return also does
3211 #define DECLTYPE_FOR_LAMBDA_CAPTURE(NODE) \
3212 TREE_LANG_FLAG_0 (DECLTYPE_TYPE_CHECK (NODE))
3213 #define DECLTYPE_FOR_LAMBDA_RETURN(NODE) \
3214 TREE_LANG_FLAG_1 (DECLTYPE_TYPE_CHECK (NODE))
3216 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `extern' was
3217 specified in its declaration. This can also be set for an
3218 erroneously declared PARM_DECL. */
3219 #define DECL_THIS_EXTERN(NODE) \
3220 DECL_LANG_FLAG_2 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
3222 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `static' was
3223 specified in its declaration. This can also be set for an
3224 erroneously declared PARM_DECL. */
3225 #define DECL_THIS_STATIC(NODE) \
3226 DECL_LANG_FLAG_6 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
3228 /* Nonzero for FIELD_DECL node means that this field is a base class
3229 of the parent object, as opposed to a member field. */
3230 #define DECL_FIELD_IS_BASE(NODE) \
3231 DECL_LANG_FLAG_6 (FIELD_DECL_CHECK (NODE))
3233 /* Nonzero for FIELD_DECL node means that this field is a simple (no
3234 explicit initializer) lambda capture field, making it invisible to
3235 name lookup in unevaluated contexts. */
3236 #define DECL_NORMAL_CAPTURE_P(NODE) \
3237 DECL_LANG_FLAG_7 (FIELD_DECL_CHECK (NODE))
3239 /* Nonzero if TYPE is an anonymous union or struct type. We have to use a
3240 flag for this because "A union for which objects or pointers are
3241 declared is not an anonymous union" [class.union]. */
3242 #define ANON_AGGR_TYPE_P(NODE) \
3243 (CLASS_TYPE_P (NODE) && LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr)
3244 #define SET_ANON_AGGR_TYPE_P(NODE) \
3245 (LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr = 1)
3247 /* Nonzero if TYPE is an anonymous union type. */
3248 #define ANON_UNION_TYPE_P(NODE) \
3249 (TREE_CODE (NODE) == UNION_TYPE && ANON_AGGR_TYPE_P (NODE))
3251 #define UNKNOWN_TYPE LANG_TYPE
3253 /* Define fields and accessors for nodes representing declared names. */
3255 #define TYPE_WAS_ANONYMOUS(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->was_anonymous)
3257 /* C++: all of these are overloaded! These apply only to TYPE_DECLs. */
3259 /* The format of each node in the DECL_FRIENDLIST is as follows:
3261 The TREE_PURPOSE will be the name of a function, i.e., an
3262 IDENTIFIER_NODE. The TREE_VALUE will be itself a TREE_LIST, whose
3263 TREE_VALUEs are friends with the given name. */
3264 #define DECL_FRIENDLIST(NODE) (DECL_INITIAL (NODE))
3265 #define FRIEND_NAME(LIST) (TREE_PURPOSE (LIST))
3266 #define FRIEND_DECLS(LIST) (TREE_VALUE (LIST))
3268 /* The DECL_ACCESS, if non-NULL, is a TREE_LIST. The TREE_PURPOSE of
3269 each node is a type; the TREE_VALUE is the access granted for this
3270 DECL in that type. The DECL_ACCESS is set by access declarations.
3271 For example, if a member that would normally be public in a
3272 derived class is made protected, then the derived class and the
3273 protected_access_node will appear in the DECL_ACCESS for the node. */
3274 #define DECL_ACCESS(NODE) (LANG_DECL_U2_CHECK (NODE, 0)->access)
3276 /* Nonzero if the FUNCTION_DECL is a global constructor. */
3277 #define DECL_GLOBAL_CTOR_P(NODE) \
3278 (LANG_DECL_FN_CHECK (NODE)->global_ctor_p)
3280 /* Nonzero if the FUNCTION_DECL is a global destructor. */
3281 #define DECL_GLOBAL_DTOR_P(NODE) \
3282 (LANG_DECL_FN_CHECK (NODE)->global_dtor_p)
3284 /* Accessor macros for C++ template decl nodes. */
3286 /* The DECL_TEMPLATE_PARMS are a list. The TREE_PURPOSE of each node
3287 is a INT_CST whose TREE_INT_CST_LOW indicates the level of the
3288 template parameters, with 1 being the outermost set of template
3289 parameters. The TREE_VALUE is a vector, whose elements are the
3290 template parameters at each level. Each element in the vector is a
3291 TREE_LIST, whose TREE_VALUE is a PARM_DECL (if the parameter is a
3292 non-type parameter), or a TYPE_DECL (if the parameter is a type
3293 parameter). The TREE_PURPOSE is the default value, if any. The
3294 TEMPLATE_PARM_INDEX for the parameter is available as the
3295 DECL_INITIAL (for a PARM_DECL) or as the TREE_TYPE (for a
3297 #define DECL_TEMPLATE_PARMS(NODE) DECL_NON_COMMON_CHECK (NODE)->decl_non_common.arguments
3298 #define DECL_INNERMOST_TEMPLATE_PARMS(NODE) \
3299 INNERMOST_TEMPLATE_PARMS (DECL_TEMPLATE_PARMS (NODE))
3300 #define DECL_NTPARMS(NODE) \
3301 TREE_VEC_LENGTH (DECL_INNERMOST_TEMPLATE_PARMS (NODE))
3302 /* For function, method, class-data templates. */
3303 #define DECL_TEMPLATE_RESULT(NODE) DECL_RESULT_FLD (NODE)
3304 /* For a function template at namespace scope, DECL_TEMPLATE_INSTANTIATIONS
3305 lists all instantiations and specializations of the function so that
3306 tsubst_friend_function can reassign them to another template if we find
3307 that the namespace-scope template is really a partial instantiation of a
3310 For a class template the DECL_TEMPLATE_INSTANTIATIONS lists holds
3311 all instantiations and specializations of the class type, including
3312 partial instantiations and partial specializations, so that if we
3313 explicitly specialize a partial instantiation we can walk the list
3314 in maybe_process_partial_specialization and reassign them or complain
3317 In both cases, the TREE_PURPOSE of each node contains the arguments
3318 used; the TREE_VALUE contains the generated variable. The template
3319 arguments are always complete. For example, given:
3321 template <class T> struct S1 {
3322 template <class U> struct S2 {};
3323 template <class U> struct S2<U*> {};
3326 the record for the partial specialization will contain, as its
3327 argument list, { {T}, {U*} }, and will be on the
3328 DECL_TEMPLATE_INSTANTIATIONS list for `template <class T> template
3329 <class U> struct S1<T>::S2'.
3331 This list is not used for other templates. */
3332 #define DECL_TEMPLATE_INSTANTIATIONS(NODE) DECL_VINDEX (NODE)
3333 /* For a class template, this list contains the partial
3334 specializations of this template. (Full specializations are not
3335 recorded on this list.) The TREE_PURPOSE holds the arguments used
3336 in the partial specialization (e.g., for `template <class T> struct
3337 S<T*, int>' this will be `T*'.) The arguments will also include
3338 any outer template arguments. The TREE_VALUE holds the innermost
3339 template parameters for the specialization (e.g., `T' in the
3340 example above.) The TREE_TYPE is the _TYPE node for the partial
3343 This list is not used for other templates. */
3344 #define DECL_TEMPLATE_SPECIALIZATIONS(NODE) DECL_SIZE (NODE)
3346 /* Nonzero for a DECL which is actually a template parameter. Keep
3347 these checks in ascending tree code order. */
3348 #define DECL_TEMPLATE_PARM_P(NODE) \
3349 (DECL_LANG_FLAG_0 (NODE) \
3350 && (TREE_CODE (NODE) == CONST_DECL \
3351 || TREE_CODE (NODE) == PARM_DECL \
3352 || TREE_CODE (NODE) == TYPE_DECL \
3353 || TREE_CODE (NODE) == TEMPLATE_DECL))
3355 /* Mark NODE as a template parameter. */
3356 #define SET_DECL_TEMPLATE_PARM_P(NODE) \
3357 (DECL_LANG_FLAG_0 (NODE) = 1)
3359 /* Nonzero if NODE is a template template parameter. */
3360 #define DECL_TEMPLATE_TEMPLATE_PARM_P(NODE) \
3361 (TREE_CODE (NODE) == TEMPLATE_DECL && DECL_TEMPLATE_PARM_P (NODE))
3363 /* Nonzero if NODE is a TEMPLATE_DECL representing an
3364 UNBOUND_CLASS_TEMPLATE tree node. */
3365 #define DECL_UNBOUND_CLASS_TEMPLATE_P(NODE) \
3366 (TREE_CODE (NODE) == TEMPLATE_DECL && !DECL_TEMPLATE_RESULT (NODE))
3368 #define DECL_FUNCTION_TEMPLATE_P(NODE) \
3369 (TREE_CODE (NODE) == TEMPLATE_DECL \
3370 && !DECL_UNBOUND_CLASS_TEMPLATE_P (NODE) \
3371 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == FUNCTION_DECL)
3373 /* Nonzero for a DECL that represents a template class. */
3374 #define DECL_CLASS_TEMPLATE_P(NODE) \
3375 (TREE_CODE (NODE) == TEMPLATE_DECL \
3376 && DECL_TEMPLATE_RESULT (NODE) != NULL_TREE \
3377 && DECL_IMPLICIT_TYPEDEF_P (DECL_TEMPLATE_RESULT (NODE)))
3379 /* Nonzero if NODE which declares a type. */
3380 #define DECL_DECLARES_TYPE_P(NODE) \
3381 (TREE_CODE (NODE) == TYPE_DECL || DECL_CLASS_TEMPLATE_P (NODE))
3383 /* Nonzero if NODE declares a function. */
3384 #define DECL_DECLARES_FUNCTION_P(NODE) \
3385 (TREE_CODE (NODE) == FUNCTION_DECL || DECL_FUNCTION_TEMPLATE_P (NODE))
3387 /* Nonzero if NODE is the typedef implicitly generated for a type when
3388 the type is declared. In C++, `struct S {};' is roughly
3389 equivalent to `struct S {}; typedef struct S S;' in C.
3390 DECL_IMPLICIT_TYPEDEF_P will hold for the typedef indicated in this
3391 example. In C++, there is a second implicit typedef for each
3392 class, in the scope of `S' itself, so that you can say `S::S'.
3393 DECL_SELF_REFERENCE_P will hold for that second typedef. */
3394 #define DECL_IMPLICIT_TYPEDEF_P(NODE) \
3395 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_2 (NODE))
3396 #define SET_DECL_IMPLICIT_TYPEDEF_P(NODE) \
3397 (DECL_LANG_FLAG_2 (NODE) = 1)
3398 #define DECL_SELF_REFERENCE_P(NODE) \
3399 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_4 (NODE))
3400 #define SET_DECL_SELF_REFERENCE_P(NODE) \
3401 (DECL_LANG_FLAG_4 (NODE) = 1)
3403 /* A `primary' template is one that has its own template header. A
3404 member function of a class template is a template, but not primary.
3405 A member template is primary. Friend templates are primary, too. */
3407 /* Returns the primary template corresponding to these parameters. */
3408 #define DECL_PRIMARY_TEMPLATE(NODE) \
3409 (TREE_TYPE (DECL_INNERMOST_TEMPLATE_PARMS (NODE)))
3411 /* Returns nonzero if NODE is a primary template. */
3412 #define PRIMARY_TEMPLATE_P(NODE) (DECL_PRIMARY_TEMPLATE (NODE) == (NODE))
3414 /* Nonzero iff NODE is a specialization of a template. The value
3415 indicates the type of specializations:
3417 1=implicit instantiation
3419 2=partial or explicit specialization, e.g.:
3421 template <> int min<int> (int, int),
3423 3=explicit instantiation, e.g.:
3425 template int min<int> (int, int);
3427 Note that NODE will be marked as a specialization even if the
3428 template it is instantiating is not a primary template. For
3431 template <typename T> struct O {
3436 both O<int>::f and O<int>::I will be marked as instantiations.
3438 If DECL_USE_TEMPLATE is nonzero, then DECL_TEMPLATE_INFO will also
3440 #define DECL_USE_TEMPLATE(NODE) (DECL_LANG_SPECIFIC (NODE)->u.base.use_template)
3442 /* Like DECL_USE_TEMPLATE, but for class types. */
3443 #define CLASSTYPE_USE_TEMPLATE(NODE) \
3444 (LANG_TYPE_CLASS_CHECK (NODE)->use_template)
3446 /* True if NODE is a specialization of a primary template. */
3447 #define CLASSTYPE_SPECIALIZATION_OF_PRIMARY_TEMPLATE_P(NODE) \
3448 (CLASS_TYPE_P (NODE) \
3449 && CLASSTYPE_USE_TEMPLATE (NODE) \
3450 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE)))
3452 #define DECL_TEMPLATE_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) & 1)
3453 #define CLASSTYPE_TEMPLATE_INSTANTIATION(NODE) \
3454 (CLASSTYPE_USE_TEMPLATE (NODE) & 1)
3456 #define DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) == 2)
3457 #define SET_DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) = 2)
3459 /* Returns true for an explicit or partial specialization of a class
3461 #define CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
3462 (CLASSTYPE_USE_TEMPLATE (NODE) == 2)
3463 #define SET_CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
3464 (CLASSTYPE_USE_TEMPLATE (NODE) = 2)
3466 #define DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 1)
3467 #define SET_DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 1)
3468 #define CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
3469 (CLASSTYPE_USE_TEMPLATE (NODE) == 1)
3470 #define SET_CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
3471 (CLASSTYPE_USE_TEMPLATE (NODE) = 1)
3473 #define DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 3)
3474 #define SET_DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 3)
3475 #define CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
3476 (CLASSTYPE_USE_TEMPLATE (NODE) == 3)
3477 #define SET_CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
3478 (CLASSTYPE_USE_TEMPLATE (NODE) = 3)
3480 /* Nonzero if DECL is a friend function which is an instantiation
3481 from the point of view of the compiler, but not from the point of
3482 view of the language. For example given:
3483 template <class T> struct S { friend void f(T) {}; };
3484 the declaration of `void f(int)' generated when S<int> is
3485 instantiated will not be a DECL_TEMPLATE_INSTANTIATION, but will be
3486 a DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION. */
3487 #define DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION(DECL) \
3488 (DECL_TEMPLATE_INFO (DECL) && !DECL_USE_TEMPLATE (DECL))
3490 /* Nonzero iff we are currently processing a declaration for an
3491 entity with its own template parameter list, and which is not a
3492 full specialization. */
3493 #define PROCESSING_REAL_TEMPLATE_DECL_P() \
3494 (processing_template_decl > template_class_depth (current_scope ()))
3496 /* Nonzero if this VAR_DECL or FUNCTION_DECL has already been
3497 instantiated, i.e. its definition has been generated from the
3498 pattern given in the template. */
3499 #define DECL_TEMPLATE_INSTANTIATED(NODE) \
3500 DECL_LANG_FLAG_1 (VAR_OR_FUNCTION_DECL_CHECK (NODE))
3502 /* We know what we're doing with this decl now. */
3503 #define DECL_INTERFACE_KNOWN(NODE) DECL_LANG_FLAG_5 (NODE)
3505 /* DECL_EXTERNAL must be set on a decl until the decl is actually emitted,
3506 so that assemble_external will work properly. So we have this flag to
3507 tell us whether the decl is really not external.
3509 This flag does not indicate whether or not the decl is defined in the
3510 current translation unit; it indicates whether or not we should emit the
3511 decl at the end of compilation if it is defined and needed. */
3512 #define DECL_NOT_REALLY_EXTERN(NODE) \
3513 (DECL_LANG_SPECIFIC (NODE)->u.base.not_really_extern)
3515 #define DECL_REALLY_EXTERN(NODE) \
3516 (DECL_EXTERNAL (NODE) && ! DECL_NOT_REALLY_EXTERN (NODE))
3518 /* A thunk is a stub function.
3520 A thunk is an alternate entry point for an ordinary FUNCTION_DECL.
3521 The address of the ordinary FUNCTION_DECL is given by the
3522 DECL_INITIAL, which is always an ADDR_EXPR whose operand is a
3523 FUNCTION_DECL. The job of the thunk is to either adjust the this
3524 pointer before transferring control to the FUNCTION_DECL, or call
3525 FUNCTION_DECL and then adjust the result value. Note, the result
3526 pointer adjusting thunk must perform a call to the thunked
3527 function, (or be implemented via passing some invisible parameter
3528 to the thunked function, which is modified to perform the
3529 adjustment just before returning).
3531 A thunk may perform either, or both, of the following operations:
3533 o Adjust the this or result pointer by a constant offset.
3534 o Adjust the this or result pointer by looking up a vcall or vbase offset
3537 A this pointer adjusting thunk converts from a base to a derived
3538 class, and hence adds the offsets. A result pointer adjusting thunk
3539 converts from a derived class to a base, and hence subtracts the
3540 offsets. If both operations are performed, then the constant
3541 adjustment is performed first for this pointer adjustment and last
3542 for the result pointer adjustment.
3544 The constant adjustment is given by THUNK_FIXED_OFFSET. If the
3545 vcall or vbase offset is required, THUNK_VIRTUAL_OFFSET is
3546 used. For this pointer adjusting thunks, it is the vcall offset
3547 into the vtable. For result pointer adjusting thunks it is the
3548 binfo of the virtual base to convert to. Use that binfo's vbase
3551 It is possible to have equivalent covariant thunks. These are
3552 distinct virtual covariant thunks whose vbase offsets happen to
3553 have the same value. THUNK_ALIAS is used to pick one as the
3554 canonical thunk, which will get all the this pointer adjusting
3555 thunks attached to it. */
3557 /* An integer indicating how many bytes should be subtracted from the
3558 this or result pointer when this function is called. */
3559 #define THUNK_FIXED_OFFSET(DECL) \
3560 (DECL_LANG_SPECIFIC (THUNK_FUNCTION_CHECK (DECL))->u.fn.u5.fixed_offset)
3562 /* A tree indicating how to perform the virtual adjustment. For a this
3563 adjusting thunk it is the number of bytes to be added to the vtable
3564 to find the vcall offset. For a result adjusting thunk, it is the
3565 binfo of the relevant virtual base. If NULL, then there is no
3566 virtual adjust. (The vptr is always located at offset zero from
3567 the this or result pointer.) (If the covariant type is within the
3568 class hierarchy being laid out, the vbase index is not yet known
3569 at the point we need to create the thunks, hence the need to use
3572 #define THUNK_VIRTUAL_OFFSET(DECL) \
3573 (LANG_DECL_U2_CHECK (FUNCTION_DECL_CHECK (DECL), 0)->access)
3575 /* A thunk which is equivalent to another thunk. */
3576 #define THUNK_ALIAS(DECL) \
3577 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->u.min.template_info)
3579 /* For thunk NODE, this is the FUNCTION_DECL thunked to. It is
3580 possible for the target to be a thunk too. */
3581 #define THUNK_TARGET(NODE) \
3582 (LANG_DECL_FN_CHECK (NODE)->befriending_classes)
3584 /* True for a SCOPE_REF iff the "template" keyword was used to
3585 indicate that the qualified name denotes a template. */
3586 #define QUALIFIED_NAME_IS_TEMPLATE(NODE) \
3587 (TREE_LANG_FLAG_0 (SCOPE_REF_CHECK (NODE)))
3589 /* True for an OMP_ATOMIC that has dependent parameters. These are stored
3590 as an expr in operand 1, and integer_zero_node in operand 0. */
3591 #define OMP_ATOMIC_DEPENDENT_P(NODE) \
3592 (TREE_CODE (TREE_OPERAND (OMP_ATOMIC_CHECK (NODE), 0)) == INTEGER_CST)
3594 /* Used while gimplifying continue statements bound to OMP_FOR nodes. */
3595 #define OMP_FOR_GIMPLIFYING_P(NODE) \
3596 (TREE_LANG_FLAG_0 (OMP_FOR_CHECK (NODE)))
3598 /* A language-specific token attached to the OpenMP data clauses to
3599 hold code (or code fragments) related to ctors, dtors, and op=.
3600 See semantics.c for details. */
3601 #define CP_OMP_CLAUSE_INFO(NODE) \
3602 TREE_TYPE (OMP_CLAUSE_RANGE_CHECK (NODE, OMP_CLAUSE_PRIVATE, \
3603 OMP_CLAUSE_COPYPRIVATE))
3605 /* These macros provide convenient access to the various _STMT nodes
3606 created when parsing template declarations. */
3607 #define TRY_STMTS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 0)
3608 #define TRY_HANDLERS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 1)
3610 #define EH_SPEC_STMTS(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 0)
3611 #define EH_SPEC_RAISES(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 1)
3613 #define USING_STMT_NAMESPACE(NODE) TREE_OPERAND (USING_STMT_CHECK (NODE), 0)
3615 /* Nonzero if this try block is a function try block. */
3616 #define FN_TRY_BLOCK_P(NODE) TREE_LANG_FLAG_3 (TRY_BLOCK_CHECK (NODE))
3617 #define HANDLER_PARMS(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 0)
3618 #define HANDLER_BODY(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 1)
3619 #define HANDLER_TYPE(NODE) TREE_TYPE (HANDLER_CHECK (NODE))
3621 /* CLEANUP_STMT accessors. The statement(s) covered, the cleanup to run
3622 and the VAR_DECL for which this cleanup exists. */
3623 #define CLEANUP_BODY(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 0)
3624 #define CLEANUP_EXPR(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 1)
3625 #define CLEANUP_DECL(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 2)
3627 /* IF_STMT accessors. These give access to the condition of the if
3628 statement, the then block of the if statement, and the else block
3629 of the if statement if it exists. */
3630 #define IF_COND(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 0)
3631 #define THEN_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 1)
3632 #define ELSE_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 2)
3634 /* WHILE_STMT accessors. These give access to the condition of the
3635 while statement and the body of the while statement, respectively. */
3636 #define WHILE_COND(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 0)
3637 #define WHILE_BODY(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 1)
3639 /* DO_STMT accessors. These give access to the condition of the do
3640 statement and the body of the do statement, respectively. */
3641 #define DO_COND(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 0)
3642 #define DO_BODY(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 1)
3644 /* FOR_STMT accessors. These give access to the init statement,
3645 condition, update expression, and body of the for statement,
3647 #define FOR_INIT_STMT(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 0)
3648 #define FOR_COND(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 1)
3649 #define FOR_EXPR(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 2)
3650 #define FOR_BODY(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 3)
3652 #define SWITCH_STMT_COND(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 0)
3653 #define SWITCH_STMT_BODY(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 1)
3654 #define SWITCH_STMT_TYPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 2)
3656 /* STMT_EXPR accessor. */
3657 #define STMT_EXPR_STMT(NODE) TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0)
3659 /* EXPR_STMT accessor. This gives the expression associated with an
3660 expression statement. */
3661 #define EXPR_STMT_EXPR(NODE) TREE_OPERAND (EXPR_STMT_CHECK (NODE), 0)
3663 /* True if this TARGET_EXPR was created by build_cplus_new, and so we can
3664 discard it if it isn't useful. */
3665 #define TARGET_EXPR_IMPLICIT_P(NODE) \
3666 TREE_LANG_FLAG_0 (TARGET_EXPR_CHECK (NODE))
3668 /* True if this TARGET_EXPR is the result of list-initialization of a
3670 #define TARGET_EXPR_LIST_INIT_P(NODE) \
3671 TREE_LANG_FLAG_1 (TARGET_EXPR_CHECK (NODE))
3673 /* True if this TARGET_EXPR expresses direct-initialization of an object
3674 to be named later. */
3675 #define TARGET_EXPR_DIRECT_INIT_P(NODE) \
3676 TREE_LANG_FLAG_2 (TARGET_EXPR_CHECK (NODE))
3678 /* True if EXPR expresses direct-initialization of a TYPE. */
3679 #define DIRECT_INIT_EXPR_P(TYPE,EXPR) \
3680 (TREE_CODE (EXPR) == TARGET_EXPR && TREE_LANG_FLAG_2 (EXPR) \
3681 && same_type_ignoring_top_level_qualifiers_p (TYPE, TREE_TYPE (EXPR)))
3683 /* An enumeration of the kind of tags that C++ accepts. */
3685 none_type = 0, /* Not a tag type. */
3686 record_type, /* "struct" types. */
3687 class_type, /* "class" types. */
3688 union_type, /* "union" types. */
3689 enum_type, /* "enum" types. */
3690 typename_type /* "typename" types. */
3693 /* The various kinds of lvalues we distinguish. */
3694 enum cp_lvalue_kind_flags {
3695 clk_none = 0, /* Things that are not an lvalue. */
3696 clk_ordinary = 1, /* An ordinary lvalue. */
3697 clk_rvalueref = 2,/* An rvalue formed using an rvalue reference */
3698 clk_class = 4, /* An rvalue of class-type. */
3699 clk_bitfield = 8, /* An lvalue for a bit-field. */
3700 clk_packed = 16 /* An lvalue for a packed field. */
3703 /* This type is used for parameters and variables which hold
3704 combinations of the flags in enum cp_lvalue_kind_flags. */
3705 typedef int cp_lvalue_kind;
3707 /* Various kinds of template specialization, instantiation, etc. */
3708 typedef enum tmpl_spec_kind {
3709 tsk_none, /* Not a template at all. */
3710 tsk_invalid_member_spec, /* An explicit member template
3711 specialization, but the enclosing
3712 classes have not all been explicitly
3714 tsk_invalid_expl_inst, /* An explicit instantiation containing
3715 template parameter lists. */
3716 tsk_excessive_parms, /* A template declaration with too many
3717 template parameter lists. */
3718 tsk_insufficient_parms, /* A template declaration with too few
3720 tsk_template, /* A template declaration. */
3721 tsk_expl_spec, /* An explicit specialization. */
3722 tsk_expl_inst /* An explicit instantiation. */
3725 /* The various kinds of access. BINFO_ACCESS depends on these being
3726 two bit quantities. The numerical values are important; they are
3727 used to initialize RTTI data structures, so changing them changes
3729 typedef enum access_kind {
3730 ak_none = 0, /* Inaccessible. */
3731 ak_public = 1, /* Accessible, as a `public' thing. */
3732 ak_protected = 2, /* Accessible, as a `protected' thing. */
3733 ak_private = 3 /* Accessible, as a `private' thing. */
3736 /* The various kinds of special functions. If you add to this list,
3737 you should update special_function_p as well. */
3738 typedef enum special_function_kind {
3739 sfk_none = 0, /* Not a special function. This enumeral
3740 must have value zero; see
3741 special_function_p. */
3742 sfk_constructor, /* A constructor. */
3743 sfk_copy_constructor, /* A copy constructor. */
3744 sfk_move_constructor, /* A move constructor. */
3745 sfk_assignment_operator, /* An assignment operator. */
3746 sfk_destructor, /* A destructor. */
3747 sfk_complete_destructor, /* A destructor for complete objects. */
3748 sfk_base_destructor, /* A destructor for base subobjects. */
3749 sfk_deleting_destructor, /* A destructor for complete objects that
3750 deletes the object after it has been
3752 sfk_conversion /* A conversion operator. */
3753 } special_function_kind;
3755 /* The various kinds of linkage. From [basic.link],
3757 A name is said to have linkage when it might denote the same
3758 object, reference, function, type, template, namespace or value
3759 as a name introduced in another scope:
3761 -- When a name has external linkage, the entity it denotes can
3762 be referred to from scopes of other translation units or from
3763 other scopes of the same translation unit.
3765 -- When a name has internal linkage, the entity it denotes can
3766 be referred to by names from other scopes in the same
3769 -- When a name has no linkage, the entity it denotes cannot be
3770 referred to by names from other scopes. */
3772 typedef enum linkage_kind {
3773 lk_none, /* No linkage. */
3774 lk_internal, /* Internal linkage. */
3775 lk_external /* External linkage. */
3778 /* Bitmask flags to control type substitution. */
3780 tf_none = 0, /* nothing special */
3781 tf_error = 1 << 0, /* give error messages */
3782 tf_warning = 1 << 1, /* give warnings too */
3783 tf_ignore_bad_quals = 1 << 2, /* ignore bad cvr qualifiers */
3784 tf_keep_type_decl = 1 << 3, /* retain typedef type decls
3785 (make_typename_type use) */
3786 tf_ptrmem_ok = 1 << 4, /* pointers to member ok (internal
3787 instantiate_type use) */
3788 tf_user = 1 << 5, /* found template must be a user template
3789 (lookup_template_class use) */
3790 tf_conv = 1 << 6, /* We are determining what kind of
3791 conversion might be permissible,
3792 not actually performing the
3794 tf_no_access_control = 1 << 7, /* Do not perform access checks, even
3795 when issuing other errors. */
3796 /* Do not instantiate classes (used by count_non_default_template_args). */
3797 tf_no_class_instantiations = 1 << 8,
3798 /* Convenient substitution flags combinations. */
3799 tf_warning_or_error = tf_warning | tf_error
3802 /* This type is used for parameters and variables which hold
3803 combinations of the flags in enum tsubst_flags. */
3804 typedef int tsubst_flags_t;
3806 /* The kind of checking we can do looking in a class hierarchy. */
3807 enum base_access_flags {
3808 ba_any = 0, /* Do not check access, allow an ambiguous base,
3809 prefer a non-virtual base */
3810 ba_unique = 1 << 0, /* Must be a unique base. */
3811 ba_check_bit = 1 << 1, /* Check access. */
3812 ba_check = ba_unique | ba_check_bit,
3813 ba_ignore_scope = 1 << 2, /* Ignore access allowed by local scope. */
3814 ba_quiet = 1 << 3 /* Do not issue error messages. */
3817 /* This type is used for parameters and variables which hold
3818 combinations of the flags in enum base_access_flags. */
3819 typedef int base_access;
3821 /* The various kinds of access check during parsing. */
3822 typedef enum deferring_kind {
3823 dk_no_deferred = 0, /* Check access immediately */
3824 dk_deferred = 1, /* Deferred check */
3825 dk_no_check = 2 /* No access check */
3828 /* The kind of base we can find, looking in a class hierarchy.
3829 Values <0 indicate we failed. */
3830 typedef enum base_kind {
3831 bk_inaccessible = -3, /* The base is inaccessible */
3832 bk_ambig = -2, /* The base is ambiguous */
3833 bk_not_base = -1, /* It is not a base */
3834 bk_same_type = 0, /* It is the same type */
3835 bk_proper_base = 1, /* It is a proper base */
3836 bk_via_virtual = 2 /* It is a proper base, but via a virtual
3837 path. This might not be the canonical
3841 /* Node for "pointer to (virtual) function".
3842 This may be distinct from ptr_type_node so gdb can distinguish them. */
3843 #define vfunc_ptr_type_node vtable_entry_type
3846 /* For building calls to `delete'. */
3847 extern GTY(()) tree integer_two_node;
3848 extern GTY(()) tree integer_three_node;
3850 /* The number of function bodies which we are currently processing.
3851 (Zero if we are at namespace scope, one inside the body of a
3852 function, two inside the body of a function in a local class, etc.) */
3853 extern int function_depth;
3857 /* Nonzero if we are parsing an unevaluated operand: an operand to
3858 sizeof, typeof, or alignof. This is a count since operands to
3859 sizeof can be nested. */
3861 extern int cp_unevaluated_operand;
3865 /* These values are used for the `STRICT' parameter to type_unification and
3866 fn_type_unification. Their meanings are described with the
3867 documentation for fn_type_unification. */
3869 typedef enum unification_kind_t {
3873 } unification_kind_t;
3877 extern int current_class_depth;
3879 /* An array of all local classes present in this translation unit, in
3880 declaration order. */
3881 extern GTY(()) VEC(tree,gc) *local_classes;
3883 /* Here's where we control how name mangling takes place. */
3885 /* Cannot use '$' up front, because this confuses gdb
3886 (names beginning with '$' are gdb-local identifiers).
3888 Note that all forms in which the '$' is significant are long enough
3889 for direct indexing (meaning that if we know there is a '$'
3890 at a particular location, we can index into the string at
3891 any other location that provides distinguishing characters). */
3893 /* Define NO_DOT_IN_LABEL in your favorite tm file if your assembler
3894 doesn't allow '.' in symbol names. */
3895 #ifndef NO_DOT_IN_LABEL
3899 #define AUTO_TEMP_NAME "_.tmp_"
3900 #define VFIELD_BASE ".vf"
3901 #define VFIELD_NAME "_vptr."
3902 #define VFIELD_NAME_FORMAT "_vptr.%s"
3904 #define ANON_AGGRNAME_FORMAT "._%d"
3906 #else /* NO_DOT_IN_LABEL */
3908 #ifndef NO_DOLLAR_IN_LABEL
3912 #define AUTO_TEMP_NAME "_$tmp_"
3913 #define VFIELD_BASE "$vf"
3914 #define VFIELD_NAME "_vptr$"
3915 #define VFIELD_NAME_FORMAT "_vptr$%s"
3916 #define ANON_AGGRNAME_FORMAT "$_%d"
3918 #else /* NO_DOLLAR_IN_LABEL */
3920 #define IN_CHARGE_NAME "__in_chrg"
3921 #define AUTO_TEMP_NAME "__tmp_"
3922 #define TEMP_NAME_P(ID_NODE) \
3923 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, \
3924 sizeof (AUTO_TEMP_NAME) - 1))
3925 #define VTABLE_NAME "__vt_"
3926 #define VTABLE_NAME_P(ID_NODE) \
3927 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VTABLE_NAME, \
3928 sizeof (VTABLE_NAME) - 1))
3929 #define VFIELD_BASE "__vfb"
3930 #define VFIELD_NAME "__vptr_"
3931 #define VFIELD_NAME_P(ID_NODE) \
3932 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, \
3933 sizeof (VFIELD_NAME) - 1))
3934 #define VFIELD_NAME_FORMAT "__vptr_%s"
3936 #define ANON_AGGRNAME_PREFIX "__anon_"
3937 #define ANON_AGGRNAME_P(ID_NODE) \
3938 (!strncmp (IDENTIFIER_POINTER (ID_NODE), ANON_AGGRNAME_PREFIX, \
3939 sizeof (ANON_AGGRNAME_PREFIX) - 1))
3940 #define ANON_AGGRNAME_FORMAT "__anon_%d"
3942 #endif /* NO_DOLLAR_IN_LABEL */
3943 #endif /* NO_DOT_IN_LABEL */
3945 #define THIS_NAME "this"
3947 #define IN_CHARGE_NAME "__in_chrg"
3949 #define VTBL_PTR_TYPE "__vtbl_ptr_type"
3950 #define VTABLE_DELTA_NAME "__delta"
3951 #define VTABLE_PFN_NAME "__pfn"
3953 #define LAMBDANAME_PREFIX "__lambda"
3954 #define LAMBDANAME_FORMAT LAMBDANAME_PREFIX "%d"
3955 #define LAMBDANAME_P(ID_NODE) \
3956 (!strncmp (IDENTIFIER_POINTER (ID_NODE), \
3957 LAMBDANAME_PREFIX, \
3958 sizeof (LAMBDANAME_PREFIX) - 1))
3960 #if !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL)
3962 #define VTABLE_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == 'v' \
3963 && IDENTIFIER_POINTER (ID_NODE)[2] == 't' \
3964 && IDENTIFIER_POINTER (ID_NODE)[3] == JOINER)
3966 #define TEMP_NAME_P(ID_NODE) \
3967 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, sizeof (AUTO_TEMP_NAME)-1))
3968 #define VFIELD_NAME_P(ID_NODE) \
3969 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, sizeof(VFIELD_NAME)-1))
3971 /* For anonymous aggregate types, we need some sort of name to
3972 hold on to. In practice, this should not appear, but it should
3973 not be harmful if it does. */
3974 #define ANON_AGGRNAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[0] == JOINER \
3975 && IDENTIFIER_POINTER (ID_NODE)[1] == '_')
3976 #endif /* !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) */
3979 /* Nonzero if we're done parsing and into end-of-file activities. */
3983 /* A list of namespace-scope objects which have constructors or
3984 destructors which reside in the global scope. The decl is stored
3985 in the TREE_VALUE slot and the initializer is stored in the
3986 TREE_PURPOSE slot. */
3987 extern GTY(()) tree static_aggregates;
3989 enum overload_flags { NO_SPECIAL = 0, DTOR_FLAG, TYPENAME_FLAG };
3991 /* These are uses as bits in flags passed to various functions to
3992 control their behavior. Despite the LOOKUP_ prefix, many of these
3993 do not control name lookup. ??? Functions using these flags should
3994 probably be modified to accept explicit boolean flags for the
3995 behaviors relevant to them. */
3996 /* Check for access violations. */
3997 #define LOOKUP_PROTECT (1 << 0)
3998 /* Complain if no suitable member function matching the arguments is
4000 #define LOOKUP_COMPLAIN (1 << 1)
4001 #define LOOKUP_NORMAL (LOOKUP_PROTECT | LOOKUP_COMPLAIN)
4002 /* Even if the function found by lookup is a virtual function, it
4003 should be called directly. */
4004 #define LOOKUP_NONVIRTUAL (1 << 2)
4005 /* Non-converting (i.e., "explicit") constructors are not tried. This flag
4006 indicates that we are not performing direct-initialization. */
4007 #define LOOKUP_ONLYCONVERTING (1 << 3)
4008 #define LOOKUP_IMPLICIT (LOOKUP_NORMAL | LOOKUP_ONLYCONVERTING)
4009 /* If a temporary is created, it should be created so that it lives
4010 as long as the current variable bindings; otherwise it only lives
4011 until the end of the complete-expression. It also forces
4012 direct-initialization in cases where other parts of the compiler
4013 have already generated a temporary, such as reference
4014 initialization and the catch parameter. */
4015 #define DIRECT_BIND (1 << 4)
4016 /* User-defined conversions are not permitted. (Built-in conversions
4018 #define LOOKUP_NO_CONVERSION (1 << 5)
4019 /* The user has explicitly called a destructor. (Therefore, we do
4020 not need to check that the object is non-NULL before calling the
4022 #define LOOKUP_DESTRUCTOR (1 << 6)
4023 /* Do not permit references to bind to temporaries. */
4024 #define LOOKUP_NO_TEMP_BIND (1 << 7)
4025 /* Do not accept objects, and possibly namespaces. */
4026 #define LOOKUP_PREFER_TYPES (1 << 8)
4027 /* Do not accept objects, and possibly types. */
4028 #define LOOKUP_PREFER_NAMESPACES (1 << 9)
4029 /* Accept types or namespaces. */
4030 #define LOOKUP_PREFER_BOTH (LOOKUP_PREFER_TYPES | LOOKUP_PREFER_NAMESPACES)
4031 /* Return friend declarations and un-declared builtin functions.
4032 (Normally, these entities are registered in the symbol table, but
4033 not found by lookup.) */
4034 #define LOOKUP_HIDDEN (LOOKUP_PREFER_NAMESPACES << 1)
4035 /* Prefer that the lvalue be treated as an rvalue. */
4036 #define LOOKUP_PREFER_RVALUE (LOOKUP_HIDDEN << 1)
4037 /* We're inside an init-list, so narrowing conversions are ill-formed. */
4038 #define LOOKUP_NO_NARROWING (LOOKUP_PREFER_RVALUE << 1)
4039 /* Avoid user-defined conversions for the first parameter of a copy
4041 #define LOOKUP_NO_COPY_CTOR_CONVERSION (LOOKUP_NO_NARROWING << 1)
4042 /* This is the first parameter of a copy constructor. */
4043 #define LOOKUP_COPY_PARM (LOOKUP_NO_COPY_CTOR_CONVERSION << 1)
4045 #define LOOKUP_NAMESPACES_ONLY(F) \
4046 (((F) & LOOKUP_PREFER_NAMESPACES) && !((F) & LOOKUP_PREFER_TYPES))
4047 #define LOOKUP_TYPES_ONLY(F) \
4048 (!((F) & LOOKUP_PREFER_NAMESPACES) && ((F) & LOOKUP_PREFER_TYPES))
4049 #define LOOKUP_QUALIFIERS_ONLY(F) ((F) & LOOKUP_PREFER_BOTH)
4052 /* These flags are used by the conversion code.
4053 CONV_IMPLICIT : Perform implicit conversions (standard and user-defined).
4054 CONV_STATIC : Perform the explicit conversions for static_cast.
4055 CONV_CONST : Perform the explicit conversions for const_cast.
4056 CONV_REINTERPRET: Perform the explicit conversions for reinterpret_cast.
4057 CONV_PRIVATE : Perform upcasts to private bases.
4058 CONV_FORCE_TEMP : Require a new temporary when converting to the same
4061 #define CONV_IMPLICIT 1
4062 #define CONV_STATIC 2
4063 #define CONV_CONST 4
4064 #define CONV_REINTERPRET 8
4065 #define CONV_PRIVATE 16
4066 /* #define CONV_NONCONVERTING 32 */
4067 #define CONV_FORCE_TEMP 64
4068 #define CONV_OLD_CONVERT (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
4070 #define CONV_C_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
4071 | CONV_REINTERPRET | CONV_PRIVATE | CONV_FORCE_TEMP)
4073 /* Used by build_expr_type_conversion to indicate which types are
4074 acceptable as arguments to the expression under consideration. */
4076 #define WANT_INT 1 /* integer types, including bool */
4077 #define WANT_FLOAT 2 /* floating point types */
4078 #define WANT_ENUM 4 /* enumerated types */
4079 #define WANT_POINTER 8 /* pointer types */
4080 #define WANT_NULL 16 /* null pointer constant */
4081 #define WANT_VECTOR 32 /* vector types */
4082 #define WANT_ARITH (WANT_INT | WANT_FLOAT | WANT_VECTOR)
4084 /* Used with comptypes, and related functions, to guide type
4087 #define COMPARE_STRICT 0 /* Just check if the types are the
4089 #define COMPARE_BASE 1 /* Check to see if the second type is
4090 derived from the first. */
4091 #define COMPARE_DERIVED 2 /* Like COMPARE_BASE, but in
4093 #define COMPARE_REDECLARATION 4 /* The comparison is being done when
4094 another declaration of an existing
4096 #define COMPARE_STRUCTURAL 8 /* The comparison is intended to be
4097 structural. The actual comparison
4098 will be identical to
4101 /* Used with push_overloaded_decl. */
4102 #define PUSH_GLOBAL 0 /* Push the DECL into namespace scope,
4103 regardless of the current scope. */
4104 #define PUSH_LOCAL 1 /* Push the DECL into the current
4106 #define PUSH_USING 2 /* We are pushing this DECL as the
4107 result of a using declaration. */
4109 /* Used with start function. */
4110 #define SF_DEFAULT 0 /* No flags. */
4111 #define SF_PRE_PARSED 1 /* The function declaration has
4112 already been parsed. */
4113 #define SF_INCLASS_INLINE 2 /* The function is an inline, defined
4114 in the class body. */
4116 /* Used with start_decl's initialized parameter. */
4117 #define SD_UNINITIALIZED 0
4118 #define SD_INITIALIZED 1
4119 #define SD_DEFAULTED 2
4120 #define SD_DELETED 3
4122 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, or if TYPE2
4123 is derived from TYPE1, or if TYPE2 is a pointer (reference) to a
4124 class derived from the type pointed to (referred to) by TYPE1. */
4125 #define same_or_base_type_p(TYPE1, TYPE2) \
4126 comptypes ((TYPE1), (TYPE2), COMPARE_BASE)
4128 /* These macros are used to access a TEMPLATE_PARM_INDEX. */
4129 #define TEMPLATE_PARM_INDEX_CAST(NODE) \
4130 ((template_parm_index*)TEMPLATE_PARM_INDEX_CHECK (NODE))
4131 #define TEMPLATE_PARM_IDX(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->index)
4132 #define TEMPLATE_PARM_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->level)
4133 #define TEMPLATE_PARM_DESCENDANTS(NODE) (TREE_CHAIN (NODE))
4134 #define TEMPLATE_PARM_ORIG_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->orig_level)
4135 #define TEMPLATE_PARM_DECL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->decl)
4136 #define TEMPLATE_PARM_PARAMETER_PACK(NODE) \
4137 (TREE_LANG_FLAG_0 (TEMPLATE_PARM_INDEX_CHECK (NODE)))
4139 /* These macros are for accessing the fields of TEMPLATE_TYPE_PARM,
4140 TEMPLATE_TEMPLATE_PARM and BOUND_TEMPLATE_TEMPLATE_PARM nodes. */
4141 #define TEMPLATE_TYPE_PARM_INDEX(NODE) \
4142 (TREE_CHECK3 ((NODE), TEMPLATE_TYPE_PARM, TEMPLATE_TEMPLATE_PARM, \
4143 BOUND_TEMPLATE_TEMPLATE_PARM))->type.values
4144 #define TEMPLATE_TYPE_IDX(NODE) \
4145 (TEMPLATE_PARM_IDX (TEMPLATE_TYPE_PARM_INDEX (NODE)))
4146 #define TEMPLATE_TYPE_LEVEL(NODE) \
4147 (TEMPLATE_PARM_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
4148 #define TEMPLATE_TYPE_ORIG_LEVEL(NODE) \
4149 (TEMPLATE_PARM_ORIG_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
4150 #define TEMPLATE_TYPE_DECL(NODE) \
4151 (TEMPLATE_PARM_DECL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
4152 #define TEMPLATE_TYPE_PARAMETER_PACK(NODE) \
4153 (TEMPLATE_PARM_PARAMETER_PACK (TEMPLATE_TYPE_PARM_INDEX (NODE)))
4155 /* These constants can used as bit flags in the process of tree formatting.
4157 TFF_PLAIN_IDENTIFIER: unqualified part of a name.
4158 TFF_SCOPE: include the class and namespace scope of the name.
4159 TFF_CHASE_TYPEDEF: print the original type-id instead of the typedef-name.
4160 TFF_DECL_SPECIFIERS: print decl-specifiers.
4161 TFF_CLASS_KEY_OR_ENUM: precede a class-type name (resp. enum name) with
4162 a class-key (resp. `enum').
4163 TFF_RETURN_TYPE: include function return type.
4164 TFF_FUNCTION_DEFAULT_ARGUMENTS: include function default parameter values.
4165 TFF_EXCEPTION_SPECIFICATION: show function exception specification.
4166 TFF_TEMPLATE_HEADER: show the template<...> header in a
4167 template-declaration.
4168 TFF_TEMPLATE_NAME: show only template-name.
4169 TFF_EXPR_IN_PARENS: parenthesize expressions.
4170 TFF_NO_FUNCTION_ARGUMENTS: don't show function arguments.
4171 TFF_UNQUALIFIED_NAME: do not print the qualifying scope of the
4173 TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS: do not omit template arguments
4174 identical to their defaults. */
4176 #define TFF_PLAIN_IDENTIFIER (0)
4177 #define TFF_SCOPE (1)
4178 #define TFF_CHASE_TYPEDEF (1 << 1)
4179 #define TFF_DECL_SPECIFIERS (1 << 2)
4180 #define TFF_CLASS_KEY_OR_ENUM (1 << 3)
4181 #define TFF_RETURN_TYPE (1 << 4)
4182 #define TFF_FUNCTION_DEFAULT_ARGUMENTS (1 << 5)
4183 #define TFF_EXCEPTION_SPECIFICATION (1 << 6)
4184 #define TFF_TEMPLATE_HEADER (1 << 7)
4185 #define TFF_TEMPLATE_NAME (1 << 8)
4186 #define TFF_EXPR_IN_PARENS (1 << 9)
4187 #define TFF_NO_FUNCTION_ARGUMENTS (1 << 10)
4188 #define TFF_UNQUALIFIED_NAME (1 << 11)
4189 #define TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS (1 << 12)
4191 /* Returns the TEMPLATE_DECL associated to a TEMPLATE_TEMPLATE_PARM
4193 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_DECL(NODE) \
4194 ((TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM) \
4195 ? TYPE_TI_TEMPLATE (NODE) \
4200 extern void init_reswords (void);
4202 typedef struct GTY(()) operator_name_info_t {
4203 /* The IDENTIFIER_NODE for the operator. */
4205 /* The name of the operator. */
4207 /* The mangled name of the operator. */
4208 const char *mangled_name;
4209 /* The arity of the operator. */
4211 } operator_name_info_t;
4213 /* A mapping from tree codes to operator name information. */
4214 extern GTY(()) operator_name_info_t operator_name_info
4215 [(int) MAX_TREE_CODES];
4216 /* Similar, but for assignment operators. */
4217 extern GTY(()) operator_name_info_t assignment_operator_name_info
4218 [(int) MAX_TREE_CODES];
4220 /* A type-qualifier, or bitmask therefore, using the TYPE_QUAL
4223 typedef int cp_cv_quals;
4225 /* A storage class. */
4227 typedef enum cp_storage_class {
4228 /* sc_none must be zero so that zeroing a cp_decl_specifier_seq
4229 sets the storage_class field to sc_none. */
4238 /* An individual decl-specifier. */
4240 typedef enum cp_decl_spec {
4242 ds_signed = ds_first,
4260 /* A decl-specifier-seq. */
4262 typedef struct cp_decl_specifier_seq {
4263 /* The number of times each of the keywords has been seen. */
4264 unsigned specs[(int) ds_last];
4265 /* The primary type, if any, given by the decl-specifier-seq.
4266 Modifiers, like "short", "const", and "unsigned" are not
4267 reflected here. This field will be a TYPE, unless a typedef-name
4268 was used, in which case it will be a TYPE_DECL. */
4270 /* The location of the primary type. Mainly used for error
4272 location_t type_location;
4273 /* The attributes, if any, provided with the specifier sequence. */
4275 /* If non-NULL, a built-in type that the user attempted to redefine
4276 to some other type. */
4277 tree redefined_builtin_type;
4278 /* The storage class specified -- or sc_none if no storage class was
4279 explicitly specified. */
4280 cp_storage_class storage_class;
4281 /* True iff TYPE_SPEC indicates a user-defined type. */
4282 BOOL_BITFIELD user_defined_type_p : 1;
4283 /* True iff multiple types were (erroneously) specified for this
4284 decl-specifier-seq. */
4285 BOOL_BITFIELD multiple_types_p : 1;
4286 /* True iff multiple storage classes were (erroneously) specified
4287 for this decl-specifier-seq or a combination of a storage class
4288 with a typedef specifier. */
4289 BOOL_BITFIELD conflicting_specifiers_p : 1;
4290 /* True iff at least one decl-specifier was found. */
4291 BOOL_BITFIELD any_specifiers_p : 1;
4292 /* True iff at least one type-specifier was found. */
4293 BOOL_BITFIELD any_type_specifiers_p : 1;
4294 /* True iff "int" was explicitly provided. */
4295 BOOL_BITFIELD explicit_int_p : 1;
4296 /* True iff "char" was explicitly provided. */
4297 BOOL_BITFIELD explicit_char_p : 1;
4298 } cp_decl_specifier_seq;
4300 /* The various kinds of declarators. */
4302 typedef enum cp_declarator_kind {
4310 } cp_declarator_kind;
4314 typedef struct cp_declarator cp_declarator;
4316 typedef struct cp_parameter_declarator cp_parameter_declarator;
4318 /* A parameter, before it has been semantically analyzed. */
4319 struct cp_parameter_declarator {
4320 /* The next parameter, or NULL_TREE if none. */
4321 cp_parameter_declarator *next;
4322 /* The decl-specifiers-seq for the parameter. */
4323 cp_decl_specifier_seq decl_specifiers;
4324 /* The declarator for the parameter. */
4325 cp_declarator *declarator;
4326 /* The default-argument expression, or NULL_TREE, if none. */
4327 tree default_argument;
4328 /* True iff this is the first parameter in the list and the
4329 parameter sequence ends with an ellipsis. */
4334 struct cp_declarator {
4335 /* The kind of declarator. */
4336 ENUM_BITFIELD (cp_declarator_kind) kind : 4;
4337 /* Whether we parsed an ellipsis (`...') just before the declarator,
4338 to indicate this is a parameter pack. */
4339 BOOL_BITFIELD parameter_pack_p : 1;
4340 /* Attributes that apply to this declarator. */
4342 /* For all but cdk_id and cdk_error, the contained declarator. For
4343 cdk_id and cdk_error, guaranteed to be NULL. */
4344 cp_declarator *declarator;
4345 location_t id_loc; /* Currently only set for cdk_id and cdk_function. */
4347 /* For identifiers. */
4349 /* If non-NULL, the qualifying scope (a NAMESPACE_DECL or
4350 *_TYPE) for this identifier. */
4351 tree qualifying_scope;
4352 /* The unqualified name of the entity -- an IDENTIFIER_NODE,
4353 BIT_NOT_EXPR, or TEMPLATE_ID_EXPR. */
4354 tree unqualified_name;
4355 /* If this is the name of a function, what kind of special
4356 function (if any). */
4357 special_function_kind sfk;
4359 /* For functions. */
4361 /* The parameters to the function as a TREE_LIST of decl/default. */
4363 /* The cv-qualifiers for the function. */
4364 cp_cv_quals qualifiers;
4365 /* The exception-specification for the function. */
4366 tree exception_specification;
4367 /* The late-specified return type, if any. */
4368 tree late_return_type;
4372 /* The bounds to the array. */
4375 /* For cdk_pointer and cdk_ptrmem. */
4377 /* The cv-qualifiers for the pointer. */
4378 cp_cv_quals qualifiers;
4379 /* For cdk_ptrmem, the class type containing the member. */
4382 /* For cdk_reference */
4384 /* The cv-qualifiers for the reference. These qualifiers are
4385 only used to diagnose ill-formed code. */
4386 cp_cv_quals qualifiers;
4387 /* Whether this is an rvalue reference */
4393 /* A level of template instantiation. */
4394 struct GTY(()) tinst_level {
4395 /* The immediately deeper level in the chain. */
4396 struct tinst_level *next;
4398 /* The original node. Can be either a DECL (for a function or static
4399 data member) or a TYPE (for a class), depending on what we were
4400 asked to instantiate. */
4403 /* The location where the template is instantiated. */
4406 /* True if the location is in a system header. */
4407 bool in_system_header_p;
4410 /* A parameter list indicating for a function with no parameters,
4411 e.g "int f(void)". */
4412 extern cp_parameter_declarator *no_parameters;
4414 /* True if we saw "#pragma GCC java_exceptions". */
4415 extern bool pragma_java_exceptions;
4418 extern bool check_dtor_name (tree, tree);
4420 extern tree build_conditional_expr (tree, tree, tree,
4422 extern tree build_addr_func (tree);
4423 extern tree build_call_a (tree, int, tree*);
4424 extern tree build_call_n (tree, int, ...);
4425 extern bool null_ptr_cst_p (tree);
4426 extern bool sufficient_parms_p (const_tree);
4427 extern tree type_decays_to (tree);
4428 extern tree build_user_type_conversion (tree, tree, int);
4429 extern tree build_new_function_call (tree, VEC(tree,gc) **, bool,
4431 extern tree build_operator_new_call (tree, VEC(tree,gc) **, tree *,
4433 extern tree build_new_method_call (tree, tree, VEC(tree,gc) **,
4436 extern tree build_special_member_call (tree, tree, VEC(tree,gc) **,
4437 tree, int, tsubst_flags_t);
4438 extern tree build_new_op (enum tree_code, int, tree,
4441 extern tree build_op_call (tree, VEC(tree,gc) **,
4443 extern tree build_op_delete_call (enum tree_code, tree, tree, bool, tree, tree);
4444 extern bool can_convert (tree, tree);
4445 extern bool can_convert_arg (tree, tree, tree, int);
4446 extern bool can_convert_arg_bad (tree, tree, tree, int);
4447 extern bool enforce_access (tree, tree, tree);
4448 extern tree convert_default_arg (tree, tree, tree, int);
4449 extern tree convert_arg_to_ellipsis (tree);
4450 extern tree build_x_va_arg (tree, tree);
4451 extern tree cxx_type_promotes_to (tree);
4452 extern tree type_passed_as (tree);
4453 extern tree convert_for_arg_passing (tree, tree);
4454 extern bool is_properly_derived_from (tree, tree);
4455 extern tree set_up_extended_ref_temp (tree, tree, tree *, tree *);
4456 extern tree initialize_reference (tree, tree, tree, tree *, tsubst_flags_t);
4457 extern tree make_temporary_var_for_ref_to_temp (tree, tree);
4458 extern tree strip_top_quals (tree);
4459 extern bool reference_related_p (tree, tree);
4460 extern tree perform_implicit_conversion (tree, tree, tsubst_flags_t);
4461 extern tree perform_implicit_conversion_flags (tree, tree, tsubst_flags_t, int);
4462 extern tree perform_direct_initialization_if_possible (tree, tree, bool,
4464 extern tree in_charge_arg_for_name (tree);
4465 extern tree build_cxx_call (tree, int, tree *);
4466 extern bool is_std_init_list (tree);
4467 extern bool is_list_ctor (tree);
4468 #ifdef ENABLE_CHECKING
4469 extern void validate_conversion_obstack (void);
4470 #endif /* ENABLE_CHECKING */
4473 extern tree build_vfield_ref (tree, tree);
4474 extern tree build_base_path (enum tree_code, tree,
4476 extern tree convert_to_base (tree, tree, bool, bool);
4477 extern tree convert_to_base_statically (tree, tree);
4478 extern tree build_vtbl_ref (tree, tree);
4479 extern tree build_vfn_ref (tree, tree);
4480 extern tree get_vtable_decl (tree, int);
4481 extern void resort_type_method_vec (void *, void *,
4482 gt_pointer_operator, void *);
4483 extern bool add_method (tree, tree, tree);
4484 extern bool currently_open_class (tree);
4485 extern tree currently_open_derived_class (tree);
4486 extern tree finish_struct (tree, tree);
4487 extern void finish_struct_1 (tree);
4488 extern int resolves_to_fixed_type_p (tree, int *);
4489 extern void init_class_processing (void);
4490 extern int is_empty_class (tree);
4491 extern bool is_really_empty_class (tree);
4492 extern void pushclass (tree);
4493 extern void popclass (void);
4494 extern void push_nested_class (tree);
4495 extern void pop_nested_class (void);
4496 extern int current_lang_depth (void);
4497 extern void push_lang_context (tree);
4498 extern void pop_lang_context (void);
4499 extern tree instantiate_type (tree, tree, tsubst_flags_t);
4500 extern void print_class_statistics (void);
4501 extern void build_self_reference (void);
4502 extern int same_signature_p (const_tree, const_tree);
4503 extern void maybe_add_class_template_decl_list (tree, tree, int);
4504 extern void unreverse_member_declarations (tree);
4505 extern void invalidate_class_lookup_cache (void);
4506 extern void maybe_note_name_used_in_class (tree, tree);
4507 extern void note_name_declared_in_class (tree, tree);
4508 extern tree get_vtbl_decl_for_binfo (tree);
4509 extern void debug_class (tree);
4510 extern void debug_thunks (tree);
4511 extern tree cp_fold_obj_type_ref (tree, tree);
4512 extern void set_linkage_according_to_type (tree, tree);
4513 extern void determine_key_method (tree);
4514 extern void check_for_override (tree, tree);
4515 extern void push_class_stack (void);
4516 extern void pop_class_stack (void);
4517 extern bool type_has_user_nondefault_constructor (tree);
4518 extern bool user_provided_p (tree);
4519 extern bool type_has_user_provided_constructor (tree);
4520 extern bool type_has_user_provided_default_constructor (tree);
4521 extern void defaulted_late_check (tree);
4522 extern bool defaultable_fn_check (tree);
4523 extern void fixup_type_variants (tree);
4524 extern tree* decl_cloned_function_p (const_tree, bool);
4525 extern void clone_function_decl (tree, int);
4526 extern void adjust_clone_args (tree);
4529 extern tree convert_to_reference (tree, tree, int, int, tree);
4530 extern tree convert_from_reference (tree);
4531 extern tree force_rvalue (tree);
4532 extern tree ocp_convert (tree, tree, int, int);
4533 extern tree cp_convert (tree, tree);
4534 extern tree cp_convert_and_check (tree, tree);
4535 extern tree cp_fold_convert (tree, tree);
4536 extern tree convert_to_void (tree, const char */*implicit context*/,
4538 extern tree convert_force (tree, tree, int);
4539 extern tree build_expr_type_conversion (int, tree, bool);
4540 extern tree type_promotes_to (tree);
4541 extern tree perform_qualification_conversions (tree, tree);
4543 /* in name-lookup.c */
4544 extern tree pushdecl (tree);
4545 extern tree pushdecl_maybe_friend (tree, bool);
4546 extern void maybe_push_cleanup_level (tree);
4547 extern tree pushtag (tree, tree, tag_scope);
4548 extern tree make_anon_name (void);
4549 extern tree pushdecl_top_level_maybe_friend (tree, bool);
4550 extern tree pushdecl_top_level_and_finish (tree, tree);
4551 extern tree check_for_out_of_scope_variable (tree);
4552 extern void print_other_binding_stack (struct cp_binding_level *);
4553 extern tree maybe_push_decl (tree);
4556 extern tree poplevel (int, int, int);
4557 extern void cxx_init_decl_processing (void);
4558 enum cp_tree_node_structure_enum cp_tree_node_structure
4559 (union lang_tree_node *);
4560 extern void finish_scope (void);
4561 extern void push_switch (tree);
4562 extern void pop_switch (void);
4563 extern tree make_lambda_name (void);
4564 extern int decls_match (tree, tree);
4565 extern tree duplicate_decls (tree, tree, bool);
4566 extern tree declare_local_label (tree);
4567 extern tree define_label (location_t, tree);
4568 extern void check_goto (tree);
4569 extern bool check_omp_return (void);
4570 extern tree make_typename_type (tree, tree, enum tag_types, tsubst_flags_t);
4571 extern tree make_unbound_class_template (tree, tree, tree, tsubst_flags_t);
4572 extern tree build_library_fn_ptr (const char *, tree);
4573 extern tree build_cp_library_fn_ptr (const char *, tree);
4574 extern tree push_library_fn (tree, tree, tree);
4575 extern tree push_void_library_fn (tree, tree);
4576 extern tree push_throw_library_fn (tree, tree);
4577 extern tree check_tag_decl (cp_decl_specifier_seq *);
4578 extern tree shadow_tag (cp_decl_specifier_seq *);
4579 extern tree groktypename (cp_decl_specifier_seq *, const cp_declarator *, bool);
4580 extern tree start_decl (const cp_declarator *, cp_decl_specifier_seq *, int, tree, tree, tree *);
4581 extern void start_decl_1 (tree, bool);
4582 extern bool check_array_initializer (tree, tree, tree);
4583 extern void cp_finish_decl (tree, tree, bool, tree, int);
4584 extern int cp_complete_array_type (tree *, tree, bool);
4585 extern tree build_ptrmemfunc_type (tree);
4586 extern tree build_ptrmem_type (tree, tree);
4587 /* the grokdeclarator prototype is in decl.h */
4588 extern tree build_this_parm (tree, cp_cv_quals);
4589 extern int copy_fn_p (const_tree);
4590 extern bool move_fn_p (const_tree);
4591 extern tree get_scope_of_declarator (const cp_declarator *);
4592 extern void grok_special_member_properties (tree);
4593 extern int grok_ctor_properties (const_tree, const_tree);
4594 extern bool grok_op_properties (tree, bool);
4595 extern tree xref_tag (enum tag_types, tree, tag_scope, bool);
4596 extern tree xref_tag_from_type (tree, tree, tag_scope);
4597 extern bool xref_basetypes (tree, tree);
4598 extern tree start_enum (tree, tree, bool);
4599 extern void finish_enum (tree);
4600 extern void build_enumerator (tree, tree, tree);
4601 extern tree lookup_enumerator (tree, tree);
4602 extern void start_preparsed_function (tree, tree, int);
4603 extern int start_function (cp_decl_specifier_seq *, const cp_declarator *, tree);
4604 extern tree begin_function_body (void);
4605 extern void finish_function_body (tree);
4606 extern tree outer_curly_brace_block (tree);
4607 extern tree finish_function (int);
4608 extern tree grokmethod (cp_decl_specifier_seq *, const cp_declarator *, tree);
4609 extern void maybe_register_incomplete_var (tree);
4610 extern void maybe_commonize_var (tree);
4611 extern void complete_vars (tree);
4612 extern void finish_stmt (void);
4613 extern void revert_static_member_fn (tree);
4614 extern void fixup_anonymous_aggr (tree);
4615 extern int check_static_variable_definition (tree, tree);
4616 extern tree compute_array_index_type (tree, tree);
4617 extern tree check_default_argument (tree, tree);
4618 typedef int (*walk_namespaces_fn) (tree, void *);
4619 extern int walk_namespaces (walk_namespaces_fn,
4621 extern int wrapup_globals_for_namespace (tree, void *);
4622 extern tree create_implicit_typedef (tree, tree);
4623 extern int local_variable_p (const_tree);
4624 extern tree register_dtor_fn (tree);
4625 extern tmpl_spec_kind current_tmpl_spec_kind (int);
4626 extern tree cp_fname_init (const char *, tree *);
4627 extern tree cxx_builtin_function (tree decl);
4628 extern tree cxx_builtin_function_ext_scope (tree decl);
4629 extern tree check_elaborated_type_specifier (enum tag_types, tree, bool);
4630 extern void warn_extern_redeclared_static (tree, tree);
4631 extern tree cxx_comdat_group (tree);
4632 extern bool cp_missing_noreturn_ok_p (tree);
4633 extern void initialize_artificial_var (tree, tree);
4634 extern tree check_var_type (tree, tree);
4635 extern tree reshape_init (tree, tree);
4637 extern bool defer_mark_used_calls;
4638 extern GTY(()) VEC(tree, gc) *deferred_mark_used_calls;
4639 extern tree finish_case_label (location_t, tree, tree);
4640 extern tree cxx_maybe_build_cleanup (tree);
4643 extern bool check_java_method (tree);
4644 extern tree build_memfn_type (tree, tree, cp_cv_quals);
4645 extern void maybe_retrofit_in_chrg (tree);
4646 extern void maybe_make_one_only (tree);
4647 extern bool vague_linkage_fn_p (tree);
4648 extern void grokclassfn (tree, tree,
4649 enum overload_flags);
4650 extern tree grok_array_decl (tree, tree);
4651 extern tree delete_sanity (tree, tree, bool, int);
4652 extern tree check_classfn (tree, tree, tree);
4653 extern void check_member_template (tree);
4654 extern tree grokfield (const cp_declarator *, cp_decl_specifier_seq *,
4655 tree, bool, tree, tree);
4656 extern tree grokbitfield (const cp_declarator *, cp_decl_specifier_seq *,
4658 extern tree cp_reconstruct_complex_type (tree, tree);
4659 extern void cplus_decl_attributes (tree *, tree, int);
4660 extern void finish_anon_union (tree);
4661 extern void cp_write_global_declarations (void);
4662 extern tree coerce_new_type (tree);
4663 extern tree coerce_delete_type (tree);
4664 extern void comdat_linkage (tree);
4665 extern void determine_visibility (tree);
4666 extern void constrain_class_visibility (tree);
4667 extern void import_export_decl (tree);
4668 extern tree build_cleanup (tree);
4669 extern tree build_offset_ref_call_from_tree (tree, VEC(tree,gc) **);
4670 extern void check_default_args (tree);
4671 extern void mark_used (tree);
4672 extern void finish_static_data_member_decl (tree, tree, bool, tree, int);
4673 extern tree cp_build_parm_decl (tree, tree);
4674 extern tree get_guard (tree);
4675 extern tree get_guard_cond (tree);
4676 extern tree set_guard (tree);
4677 extern tree cxx_callgraph_analyze_expr (tree *, int *);
4678 extern void mark_needed (tree);
4679 extern bool decl_needed_p (tree);
4680 extern void note_vague_linkage_fn (tree);
4681 extern tree build_artificial_parm (tree, tree);
4682 extern bool possibly_inlined_p (tree);
4683 extern int parm_index (tree);
4686 extern void init_error (void);
4687 extern const char *type_as_string (tree, int);
4688 extern const char *type_as_string_translate (tree, int);
4689 extern const char *decl_as_string (tree, int);
4690 extern const char *decl_as_string_translate (tree, int);
4691 extern const char *expr_as_string (tree, int);
4692 extern const char *lang_decl_name (tree, int, bool);
4693 extern const char *language_to_string (enum languages);
4694 extern const char *class_key_or_enum_as_string (tree);
4695 extern void print_instantiation_context (void);
4696 extern void maybe_warn_variadic_templates (void);
4697 extern void maybe_warn_cpp0x (cpp0x_warn_str str);
4698 extern bool pedwarn_cxx98 (location_t, int, const char *, ...) ATTRIBUTE_GCC_CXXDIAG(3,4);
4701 extern void init_exception_processing (void);
4702 extern tree expand_start_catch_block (tree);
4703 extern void expand_end_catch_block (void);
4704 extern tree build_exc_ptr (void);
4705 extern tree build_throw (tree);
4706 extern int nothrow_libfn_p (const_tree);
4707 extern void check_handlers (tree);
4708 extern void choose_personality_routine (enum languages);
4709 extern tree eh_type_info (tree);
4710 extern tree begin_eh_spec_block (void);
4711 extern void finish_eh_spec_block (tree, tree);
4712 extern tree build_eh_type_type (tree);
4715 extern tree cplus_expand_constant (tree);
4718 extern int is_friend (tree, tree);
4719 extern void make_friend_class (tree, tree, bool);
4720 extern void add_friend (tree, tree, bool);
4721 extern tree do_friend (tree, tree, tree, tree, enum overload_flags, bool);
4724 extern tree expand_member_init (tree);
4725 extern void emit_mem_initializers (tree);
4726 extern tree build_aggr_init (tree, tree, int,
4728 extern int is_class_type (tree, int);
4729 extern tree get_type_value (tree);
4730 extern tree build_zero_init (tree, tree, bool);
4731 extern tree build_value_init (tree);
4732 extern tree build_value_init_noctor (tree);
4733 extern tree build_offset_ref (tree, tree, bool);
4734 extern tree build_new (VEC(tree,gc) **, tree, tree,
4735 VEC(tree,gc) **, int,
4737 extern tree build_vec_init (tree, tree, tree, bool, int,
4739 extern tree build_delete (tree, tree,
4740 special_function_kind,
4742 extern void push_base_cleanups (void);
4743 extern tree build_vec_delete (tree, tree,
4744 special_function_kind, int);
4745 extern tree create_temporary_var (tree);
4746 extern void initialize_vtbl_ptrs (tree);
4747 extern tree build_java_class_ref (tree);
4748 extern tree integral_constant_value (tree);
4751 extern void cxx_dup_lang_specific_decl (tree);
4752 extern void yyungetc (int, int);
4754 extern tree unqualified_name_lookup_error (tree);
4755 extern tree unqualified_fn_lookup_error (tree);
4756 extern tree build_lang_decl (enum tree_code, tree, tree);
4757 extern void retrofit_lang_decl (tree);
4758 extern tree copy_decl (tree);
4759 extern tree copy_type (tree);
4760 extern tree cxx_make_type (enum tree_code);
4761 extern tree make_class_type (enum tree_code);
4762 extern bool cxx_init (void);
4763 extern void cxx_finish (void);
4764 extern bool in_main_input_context (void);
4767 extern void init_method (void);
4768 extern tree make_thunk (tree, bool, tree, tree);
4769 extern void finish_thunk (tree);
4770 extern void use_thunk (tree, bool);
4771 extern void synthesize_method (tree);
4772 extern tree lazily_declare_fn (special_function_kind,
4774 extern tree skip_artificial_parms_for (const_tree, tree);
4775 extern int num_artificial_parms_for (const_tree);
4776 extern tree make_alias_for (tree, tree);
4777 extern tree locate_copy (tree, void *);
4778 extern tree locate_ctor (tree, void *);
4779 extern tree locate_dtor (tree, void *);
4782 extern bool maybe_clone_body (tree);
4785 extern bool check_template_shadow (tree);
4786 extern tree get_innermost_template_args (tree, int);
4787 extern void maybe_begin_member_template_processing (tree);
4788 extern void maybe_end_member_template_processing (void);
4789 extern tree finish_member_template_decl (tree);
4790 extern void begin_template_parm_list (void);
4791 extern bool begin_specialization (void);
4792 extern void reset_specialization (void);
4793 extern void end_specialization (void);
4794 extern void begin_explicit_instantiation (void);
4795 extern void end_explicit_instantiation (void);
4796 extern tree check_explicit_specialization (tree, tree, int, int);
4797 extern tree make_auto (void);
4798 extern tree do_auto_deduction (tree, tree, tree);
4799 extern tree type_uses_auto (tree);
4800 extern void append_type_to_template_for_access_check (tree, tree, tree);
4801 extern tree splice_late_return_type (tree, tree);
4802 extern bool is_auto (const_tree);
4803 extern tree process_template_parm (tree, location_t, tree,
4805 extern tree end_template_parm_list (tree);
4806 extern void end_template_decl (void);
4807 extern bool check_default_tmpl_args (tree, tree, int, int, int);
4808 extern tree push_template_decl (tree);
4809 extern tree push_template_decl_real (tree, bool);
4810 extern bool redeclare_class_template (tree, tree);
4811 extern tree lookup_template_class (tree, tree, tree, tree,
4812 int, tsubst_flags_t);
4813 extern tree lookup_template_function (tree, tree);
4814 extern int uses_template_parms (tree);
4815 extern int uses_template_parms_level (tree, int);
4816 extern tree instantiate_class_template (tree);
4817 extern tree instantiate_template (tree, tree, tsubst_flags_t);
4818 extern int fn_type_unification (tree, tree, tree,
4819 const tree *, unsigned int,
4820 tree, unification_kind_t, int);
4821 extern void mark_decl_instantiated (tree, int);
4822 extern int more_specialized_fn (tree, tree, int);
4823 extern void do_decl_instantiation (tree, tree);
4824 extern void do_type_instantiation (tree, tree, tsubst_flags_t);
4825 extern bool always_instantiate_p (tree);
4826 extern tree instantiate_decl (tree, int, bool);
4827 extern int comp_template_parms (const_tree, const_tree);
4828 extern bool uses_parameter_packs (tree);
4829 extern bool template_parameter_pack_p (const_tree);
4830 extern bool function_parameter_pack_p (const_tree);
4831 extern bool function_parameter_expanded_from_pack_p (tree, tree);
4832 extern tree make_pack_expansion (tree);
4833 extern bool check_for_bare_parameter_packs (tree);
4834 extern tree get_template_info (const_tree);
4835 extern tree get_types_needing_access_check (tree);
4836 extern int template_class_depth (tree);
4837 extern int is_specialization_of (tree, tree);
4838 extern bool is_specialization_of_friend (tree, tree);
4839 extern tree get_pattern_parm (tree, tree);
4840 extern int comp_template_args (tree, tree);
4841 extern tree maybe_process_partial_specialization (tree);
4842 extern tree most_specialized_instantiation (tree);
4843 extern void print_candidates (tree);
4844 extern void instantiate_pending_templates (int);
4845 extern tree tsubst_default_argument (tree, tree, tree);
4846 extern tree tsubst (tree, tree, tsubst_flags_t, tree);
4847 extern tree tsubst_copy_and_build (tree, tree, tsubst_flags_t,
4849 extern tree most_general_template (tree);
4850 extern tree get_mostly_instantiated_function_type (tree);
4851 extern int problematic_instantiation_changed (void);
4852 extern void record_last_problematic_instantiation (void);
4853 extern struct tinst_level *current_instantiation(void);
4854 extern tree maybe_get_template_decl_from_type_decl (tree);
4855 extern int processing_template_parmlist;
4856 extern bool dependent_type_p (tree);
4857 extern bool dependent_scope_p (tree);
4858 extern bool any_dependent_template_arguments_p (const_tree);
4859 extern bool dependent_template_p (tree);
4860 extern bool dependent_template_id_p (tree, tree);
4861 extern bool type_dependent_expression_p (tree);
4862 extern bool any_type_dependent_arguments_p (const VEC(tree,gc) *);
4863 extern bool type_dependent_expression_p_push (tree);
4864 extern bool value_dependent_expression_p (tree);
4865 extern bool any_value_dependent_elements_p (const_tree);
4866 extern bool dependent_omp_for_p (tree, tree, tree, tree);
4867 extern tree resolve_typename_type (tree, bool);
4868 extern tree template_for_substitution (tree);
4869 extern tree build_non_dependent_expr (tree);
4870 extern void make_args_non_dependent (VEC(tree,gc) *);
4871 extern bool reregister_specialization (tree, tree, tree);
4872 extern tree fold_non_dependent_expr (tree);
4873 extern bool explicit_class_specialization_p (tree);
4874 extern struct tinst_level *outermost_tinst_level(void);
4875 extern bool parameter_of_template_p (tree, tree);
4876 extern void init_template_processing (void);
4877 bool template_template_parameter_p (const_tree);
4878 extern bool primary_template_instantiation_p (const_tree);
4879 extern tree get_primary_template_innermost_parameters (const_tree);
4880 extern tree get_template_innermost_arguments (const_tree);
4881 extern tree get_template_argument_pack_elems (const_tree);
4882 extern tree get_function_template_decl (const_tree);
4883 extern tree resolve_nondeduced_context (tree);
4886 extern void init_repo (void);
4887 extern int repo_emit_p (tree);
4888 extern bool repo_export_class_p (const_tree);
4889 extern void finish_repo (void);
4892 /* A vector of all tinfo decls that haven't been emitted yet. */
4893 extern GTY(()) VEC(tree,gc) *unemitted_tinfo_decls;
4895 extern void init_rtti_processing (void);
4896 extern tree build_typeid (tree);
4897 extern tree get_tinfo_decl (tree);
4898 extern tree get_typeid (tree);
4899 extern tree build_headof (tree);
4900 extern tree build_dynamic_cast (tree, tree, tsubst_flags_t);
4901 extern void emit_support_tinfos (void);
4902 extern bool emit_tinfo_decl (tree);
4905 extern bool accessible_base_p (tree, tree, bool);
4906 extern tree lookup_base (tree, tree, base_access,
4908 extern tree dcast_base_hint (tree, tree);
4909 extern int accessible_p (tree, tree, bool);
4910 extern tree lookup_field_1 (tree, tree, bool);
4911 extern tree lookup_field (tree, tree, int, bool);
4912 extern int lookup_fnfields_1 (tree, tree);
4913 extern int class_method_index_for_fn (tree, tree);
4914 extern tree lookup_fnfields (tree, tree, int);
4915 extern tree lookup_member (tree, tree, int, bool);
4916 extern int look_for_overrides (tree, tree);
4917 extern void get_pure_virtuals (tree);
4918 extern void maybe_suppress_debug_info (tree);
4919 extern void note_debug_info_needed (tree);
4920 extern void print_search_statistics (void);
4921 extern void reinit_search_statistics (void);
4922 extern tree current_scope (void);
4923 extern int at_function_scope_p (void);
4924 extern bool at_class_scope_p (void);
4925 extern bool at_namespace_scope_p (void);
4926 extern tree context_for_name_lookup (tree);
4927 extern tree lookup_conversions (tree);
4928 extern tree binfo_from_vbase (tree);
4929 extern tree binfo_for_vbase (tree, tree);
4930 extern tree look_for_overrides_here (tree, tree);
4931 #define dfs_skip_bases ((tree)1)
4932 extern tree dfs_walk_all (tree, tree (*) (tree, void *),
4933 tree (*) (tree, void *), void *);
4934 extern tree dfs_walk_once (tree, tree (*) (tree, void *),
4935 tree (*) (tree, void *), void *);
4936 extern tree binfo_via_virtual (tree, tree);
4937 extern tree build_baselink (tree, tree, tree, tree);
4938 extern tree adjust_result_of_qualified_name_lookup
4940 extern tree copied_binfo (tree, tree);
4941 extern tree original_binfo (tree, tree);
4942 extern int shared_member_p (tree);
4945 /* The representation of a deferred access check. */
4947 typedef struct GTY(()) deferred_access_check {
4948 /* The base class in which the declaration is referenced. */
4950 /* The declaration whose access must be checked. */
4952 /* The declaration that should be used in the error message. */
4954 } deferred_access_check;
4955 DEF_VEC_O(deferred_access_check);
4956 DEF_VEC_ALLOC_O(deferred_access_check,gc);
4958 /* in semantics.c */
4959 extern void push_deferring_access_checks (deferring_kind);
4960 extern void resume_deferring_access_checks (void);
4961 extern void stop_deferring_access_checks (void);
4962 extern void pop_deferring_access_checks (void);
4963 extern VEC (deferred_access_check,gc)* get_deferred_access_checks (void);
4964 extern void pop_to_parent_deferring_access_checks (void);
4965 extern void perform_access_checks (VEC (deferred_access_check,gc)*);
4966 extern void perform_deferred_access_checks (void);
4967 extern void perform_or_defer_access_check (tree, tree, tree);
4968 extern int stmts_are_full_exprs_p (void);
4969 extern void init_cp_semantics (void);
4970 extern tree do_poplevel (tree);
4971 extern void add_decl_expr (tree);
4972 extern tree finish_expr_stmt (tree);
4973 extern tree begin_if_stmt (void);
4974 extern void finish_if_stmt_cond (tree, tree);
4975 extern tree finish_then_clause (tree);
4976 extern void begin_else_clause (tree);
4977 extern void finish_else_clause (tree);
4978 extern void finish_if_stmt (tree);
4979 extern tree begin_while_stmt (void);
4980 extern void finish_while_stmt_cond (tree, tree);
4981 extern void finish_while_stmt (tree);
4982 extern tree begin_do_stmt (void);
4983 extern void finish_do_body (tree);
4984 extern void finish_do_stmt (tree, tree);
4985 extern tree finish_return_stmt (tree);
4986 extern tree begin_for_stmt (void);
4987 extern void finish_for_init_stmt (tree);
4988 extern void finish_for_cond (tree, tree);
4989 extern void finish_for_expr (tree, tree);
4990 extern void finish_for_stmt (tree);
4991 extern tree finish_break_stmt (void);
4992 extern tree finish_continue_stmt (void);
4993 extern tree begin_switch_stmt (void);
4994 extern void finish_switch_cond (tree, tree);
4995 extern void finish_switch_stmt (tree);
4996 extern tree finish_goto_stmt (tree);
4997 extern tree begin_try_block (void);
4998 extern void finish_try_block (tree);
4999 extern void finish_handler_sequence (tree);
5000 extern tree begin_function_try_block (tree *);
5001 extern void finish_function_try_block (tree);
5002 extern void finish_function_handler_sequence (tree, tree);
5003 extern void finish_cleanup_try_block (tree);
5004 extern tree begin_handler (void);
5005 extern void finish_handler_parms (tree, tree);
5006 extern void finish_handler (tree);
5007 extern void finish_cleanup (tree, tree);
5008 extern bool literal_type_p (tree);
5009 extern tree validate_constexpr_fundecl (tree);
5010 extern tree ensure_literal_type_for_constexpr_object (tree);
5017 extern tree begin_compound_stmt (unsigned int);
5019 extern void finish_compound_stmt (tree);
5020 extern tree finish_asm_stmt (int, tree, tree, tree, tree,
5022 extern tree finish_label_stmt (tree);
5023 extern void finish_label_decl (tree);
5024 extern tree finish_parenthesized_expr (tree);
5025 extern tree finish_non_static_data_member (tree, tree, tree);
5026 extern tree begin_stmt_expr (void);
5027 extern tree finish_stmt_expr_expr (tree, tree);
5028 extern tree finish_stmt_expr (tree, bool);
5029 extern tree stmt_expr_value_expr (tree);
5030 extern tree perform_koenig_lookup (tree, VEC(tree,gc) *);
5031 extern tree finish_call_expr (tree, VEC(tree,gc) **, bool,
5032 bool, tsubst_flags_t);
5033 extern tree finish_increment_expr (tree, enum tree_code);
5034 extern tree finish_this_expr (void);
5035 extern tree finish_pseudo_destructor_expr (tree, tree, tree);
5036 extern tree finish_unary_op_expr (enum tree_code, tree);
5037 extern tree finish_compound_literal (tree, tree);
5038 extern tree finish_fname (tree);
5039 extern void finish_translation_unit (void);
5040 extern tree finish_template_type_parm (tree, tree);
5041 extern tree finish_template_template_parm (tree, tree);
5042 extern tree begin_class_definition (tree, tree);
5043 extern void finish_template_decl (tree);
5044 extern tree finish_template_type (tree, tree, int);
5045 extern tree finish_base_specifier (tree, tree, bool);
5046 extern void finish_member_declaration (tree);
5047 extern void qualified_name_lookup_error (tree, tree, tree,
5049 extern tree finish_id_expression (tree, tree, tree,
5052 bool, bool, bool, bool,
5055 extern tree finish_typeof (tree);
5056 extern tree finish_offsetof (tree);
5057 extern void finish_decl_cleanup (tree, tree);
5058 extern void finish_eh_cleanup (tree);
5059 extern void emit_associated_thunks (tree);
5060 extern void finish_mem_initializers (tree);
5061 extern tree check_template_template_default_arg (tree);
5062 extern bool expand_or_defer_fn_1 (tree);
5063 extern void expand_or_defer_fn (tree);
5064 extern void check_accessibility_of_qualified_id (tree, tree, tree);
5065 extern tree finish_qualified_id_expr (tree, tree, bool, bool,
5067 extern void simplify_aggr_init_expr (tree *);
5068 extern void finalize_nrv (tree *, tree, tree);
5069 extern void note_decl_for_pch (tree);
5070 extern tree finish_omp_clauses (tree);
5071 extern void finish_omp_threadprivate (tree);
5072 extern tree begin_omp_structured_block (void);
5073 extern tree finish_omp_structured_block (tree);
5074 extern tree begin_omp_parallel (void);
5075 extern tree finish_omp_parallel (tree, tree);
5076 extern tree begin_omp_task (void);
5077 extern tree finish_omp_task (tree, tree);
5078 extern tree finish_omp_for (location_t, tree, tree,
5079 tree, tree, tree, tree, tree);
5080 extern void finish_omp_atomic (enum tree_code, tree, tree);
5081 extern void finish_omp_barrier (void);
5082 extern void finish_omp_flush (void);
5083 extern void finish_omp_taskwait (void);
5084 extern bool cxx_omp_create_clause_info (tree, tree, bool, bool, bool);
5085 extern tree baselink_for_fns (tree);
5086 extern void finish_static_assert (tree, tree, location_t,
5088 extern tree describable_type (tree);
5089 extern tree finish_decltype_type (tree, bool);
5090 extern tree finish_trait_expr (enum cp_trait_kind, tree, tree);
5091 extern tree build_lambda_expr (void);
5092 extern tree build_lambda_object (tree);
5093 extern tree begin_lambda_type (tree);
5094 extern tree lambda_capture_field_type (tree);
5095 extern tree lambda_return_type (tree);
5096 extern tree lambda_function (tree);
5097 extern void apply_lambda_return_type (tree, tree);
5098 extern tree add_capture (tree, tree, tree, bool, bool);
5099 extern tree add_default_capture (tree, tree, tree);
5100 extern tree lambda_expr_this_capture (tree);
5101 extern void maybe_add_lambda_conv_op (tree);
5104 void cp_free_lang_data (tree t);
5105 extern tree force_target_expr (tree, tree);
5106 extern tree build_target_expr_with_type (tree, tree);
5107 extern void lang_check_failed (const char *, int,
5108 const char *) ATTRIBUTE_NORETURN;
5109 extern tree stabilize_expr (tree, tree *);
5110 extern void stabilize_call (tree, tree *);
5111 extern void stabilize_aggr_init (tree, tree *);
5112 extern bool stabilize_init (tree, tree *);
5113 extern tree add_stmt_to_compound (tree, tree);
5114 extern void init_tree (void);
5115 extern bool pod_type_p (const_tree);
5116 extern bool layout_pod_type_p (const_tree);
5117 extern bool std_layout_type_p (const_tree);
5118 extern bool trivial_type_p (const_tree);
5119 extern bool type_has_nontrivial_default_init (const_tree);
5120 extern bool type_has_nontrivial_copy_init (const_tree);
5121 extern bool class_tmpl_impl_spec_p (const_tree);
5122 extern int zero_init_p (const_tree);
5123 extern tree strip_typedefs (tree);
5124 extern bool typedef_variant_p (tree);
5125 extern tree copy_binfo (tree, tree, tree,
5127 extern int member_p (const_tree);
5128 extern cp_lvalue_kind real_lvalue_p (tree);
5129 extern bool lvalue_or_rvalue_with_address_p (const_tree);
5130 extern bool builtin_valid_in_constant_expr_p (const_tree);
5131 extern tree build_min (enum tree_code, tree, ...);
5132 extern tree build_min_nt (enum tree_code, ...);
5133 extern tree build_min_non_dep (enum tree_code, tree, ...);
5134 extern tree build_min_non_dep_call_vec (tree, tree, VEC(tree,gc) *);
5135 extern tree build_cplus_new (tree, tree);
5136 extern tree build_aggr_init_expr (tree, tree);
5137 extern tree get_target_expr (tree);
5138 extern tree build_cplus_array_type (tree, tree);
5139 extern tree build_array_of_n_type (tree, int);
5140 extern tree build_array_copy (tree);
5141 extern tree hash_tree_cons (tree, tree, tree);
5142 extern tree hash_tree_chain (tree, tree);
5143 extern tree build_qualified_name (tree, tree, tree, bool);
5144 extern int is_overloaded_fn (tree);
5145 extern tree get_first_fn (tree);
5146 extern tree ovl_cons (tree, tree);
5147 extern tree build_overload (tree, tree);
5148 extern const char *cxx_printable_name (tree, int);
5149 extern const char *cxx_printable_name_translate (tree, int);
5150 extern tree build_exception_variant (tree, tree);
5151 extern tree bind_template_template_parm (tree, tree);
5152 extern tree array_type_nelts_total (tree);
5153 extern tree array_type_nelts_top (tree);
5154 extern tree break_out_target_exprs (tree);
5155 extern tree get_type_decl (tree);
5156 extern tree decl_namespace_context (tree);
5157 extern bool decl_anon_ns_mem_p (const_tree);
5158 extern tree lvalue_type (tree);
5159 extern tree error_type (tree);
5160 extern int varargs_function_p (const_tree);
5161 extern bool really_overloaded_fn (tree);
5162 extern bool cp_tree_equal (tree, tree);
5163 extern tree no_linkage_check (tree, bool);
5164 extern void debug_binfo (tree);
5165 extern tree build_dummy_object (tree);
5166 extern tree maybe_dummy_object (tree, tree *);
5167 extern int is_dummy_object (const_tree);
5168 extern const struct attribute_spec cxx_attribute_table[];
5169 extern tree make_ptrmem_cst (tree, tree);
5170 extern tree cp_build_type_attribute_variant (tree, tree);
5171 extern tree cp_build_reference_type (tree, bool);
5172 extern tree move (tree);
5173 extern tree cp_build_qualified_type_real (tree, int, tsubst_flags_t);
5174 #define cp_build_qualified_type(TYPE, QUALS) \
5175 cp_build_qualified_type_real ((TYPE), (QUALS), tf_warning_or_error)
5176 extern bool cv_qualified_p (const_tree);
5177 extern tree cv_unqualified (tree);
5178 extern special_function_kind special_function_p (const_tree);
5179 extern int count_trees (tree);
5180 extern int char_type_p (tree);
5181 extern void verify_stmt_tree (tree);
5182 extern linkage_kind decl_linkage (tree);
5183 extern tree cp_walk_subtrees (tree*, int*, walk_tree_fn,
5184 void*, struct pointer_set_t*);
5185 #define cp_walk_tree(a,b,c,d) \
5186 walk_tree_1 (a, b, c, d, cp_walk_subtrees)
5187 #define cp_walk_tree_without_duplicates(a,b,c) \
5188 walk_tree_without_duplicates_1 (a, b, c, cp_walk_subtrees)
5189 extern tree fold_if_not_in_template (tree);
5190 extern tree rvalue (tree);
5191 extern tree convert_bitfield_to_declared_type (tree);
5192 extern tree cp_save_expr (tree);
5193 extern bool cast_valid_in_integral_constant_expression_p (tree);
5194 extern bool cxx_type_hash_eq (const_tree, const_tree);
5196 extern void cxx_print_statistics (void);
5199 extern void cxx_print_xnode (FILE *, tree, int);
5200 extern void cxx_print_decl (FILE *, tree, int);
5201 extern void cxx_print_type (FILE *, tree, int);
5202 extern void cxx_print_identifier (FILE *, tree, int);
5203 extern void cxx_print_error_function (struct diagnostic_context *,
5205 struct diagnostic_info *);
5208 extern bool cxx_mark_addressable (tree);
5209 extern int string_conv_p (const_tree, const_tree, int);
5210 extern tree cp_truthvalue_conversion (tree);
5211 extern tree condition_conversion (tree);
5212 extern tree require_complete_type (tree);
5213 extern tree complete_type (tree);
5214 extern tree complete_type_or_else (tree, tree);
5215 extern int type_unknown_p (const_tree);
5216 extern bool comp_except_specs (const_tree, const_tree, bool);
5217 extern bool comptypes (tree, tree, int);
5218 extern bool compparms (const_tree, const_tree);
5219 extern int comp_cv_qualification (const_tree, const_tree);
5220 extern int comp_cv_qual_signature (tree, tree);
5221 extern tree cxx_sizeof_or_alignof_expr (tree, enum tree_code, bool);
5222 extern tree cxx_sizeof_or_alignof_type (tree, enum tree_code, bool);
5223 extern tree cxx_sizeof_nowarn (tree);
5224 extern tree is_bitfield_expr_with_lowered_type (const_tree);
5225 extern tree unlowered_expr_type (const_tree);
5226 extern tree decay_conversion (tree);
5227 extern tree build_class_member_access_expr (tree, tree, tree, bool,
5229 extern tree finish_class_member_access_expr (tree, tree, bool,
5231 extern tree build_x_indirect_ref (tree, const char *,
5233 extern tree cp_build_indirect_ref (tree, const char *,
5235 extern tree build_array_ref (location_t, tree, tree);
5236 extern tree get_member_function_from_ptrfunc (tree *, tree);
5237 extern tree cp_build_function_call (tree, tree, tsubst_flags_t);
5238 extern tree cp_build_function_call_vec (tree, VEC(tree,gc) **,
5240 extern tree build_x_binary_op (enum tree_code, tree,
5241 enum tree_code, tree,
5242 enum tree_code, bool *,
5244 extern tree build_x_array_ref (tree, tree, tsubst_flags_t);
5245 extern tree build_x_unary_op (enum tree_code, tree,
5247 extern tree cp_build_unary_op (enum tree_code, tree, int,
5249 extern tree unary_complex_lvalue (enum tree_code, tree);
5250 extern tree build_x_conditional_expr (tree, tree, tree,
5252 extern tree build_x_compound_expr_from_list (tree, const char *);
5253 extern tree build_x_compound_expr_from_vec (VEC(tree,gc) *, const char *);
5254 extern tree build_x_compound_expr (tree, tree, tsubst_flags_t);
5255 extern tree build_compound_expr (location_t, tree, tree);
5256 extern tree cp_build_compound_expr (tree, tree, tsubst_flags_t);
5257 extern tree build_static_cast (tree, tree, tsubst_flags_t);
5258 extern tree build_reinterpret_cast (tree, tree, tsubst_flags_t);
5259 extern tree build_const_cast (tree, tree, tsubst_flags_t);
5260 extern tree build_c_cast (location_t, tree, tree);
5261 extern tree cp_build_c_cast (tree, tree, tsubst_flags_t);
5262 extern tree build_x_modify_expr (tree, enum tree_code, tree,
5264 extern tree cp_build_modify_expr (tree, enum tree_code, tree,
5266 extern tree convert_for_initialization (tree, tree, tree, int,
5267 const char *, tree, int,
5269 extern int comp_ptr_ttypes (tree, tree);
5270 extern bool comp_ptr_ttypes_const (tree, tree);
5271 extern int ptr_reasonably_similar (const_tree, const_tree);
5272 extern tree build_ptrmemfunc (tree, tree, int, bool);
5273 extern int cp_type_quals (const_tree);
5274 extern bool cp_type_readonly (const_tree);
5275 extern bool cp_has_mutable_p (const_tree);
5276 extern bool at_least_as_qualified_p (const_tree, const_tree);
5277 extern void cp_apply_type_quals_to_decl (int, tree);
5278 extern tree build_ptrmemfunc1 (tree, tree, tree);
5279 extern void expand_ptrmemfunc_cst (tree, tree *, tree *);
5280 extern tree type_after_usual_arithmetic_conversions (tree, tree);
5281 extern tree common_pointer_type (tree, tree);
5282 extern tree composite_pointer_type (tree, tree, tree, tree,
5283 const char*, tsubst_flags_t);
5284 extern tree merge_types (tree, tree);
5285 extern tree check_return_expr (tree, bool *);
5286 extern tree cp_build_binary_op (location_t,
5287 enum tree_code, tree, tree,
5289 #define cxx_sizeof(T) cxx_sizeof_or_alignof_type (T, SIZEOF_EXPR, true)
5290 extern tree build_ptrmemfunc_access_expr (tree, tree);
5291 extern tree build_address (tree);
5292 extern tree build_typed_address (tree, tree);
5293 extern tree build_nop (tree, tree);
5294 extern tree non_reference (tree);
5295 extern tree lookup_anon_field (tree, tree);
5296 extern bool invalid_nonstatic_memfn_p (const_tree, tsubst_flags_t);
5297 extern tree convert_member_func_to_ptr (tree, tree);
5298 extern tree convert_ptrmem (tree, tree, bool, bool);
5299 extern int lvalue_or_else (tree, enum lvalue_use,
5301 extern void check_template_keyword (tree);
5304 extern void require_complete_eh_spec_types (tree, tree);
5305 extern void cxx_incomplete_type_diagnostic (const_tree, const_tree, diagnostic_t);
5306 #undef cxx_incomplete_type_error
5307 extern void cxx_incomplete_type_error (const_tree, const_tree);
5308 #define cxx_incomplete_type_error(V,T) \
5309 (cxx_incomplete_type_diagnostic ((V), (T), DK_ERROR))
5310 extern tree error_not_base_type (tree, tree);
5311 extern tree binfo_or_else (tree, tree);
5312 extern void readonly_error (tree, const char *);
5313 extern void complete_type_check_abstract (tree);
5314 extern int abstract_virtuals_error (tree, tree);
5316 extern tree store_init_value (tree, tree, int);
5317 extern void check_narrowing (tree, tree);
5318 extern tree digest_init (tree, tree);
5319 extern tree digest_init_flags (tree, tree, int);
5320 extern tree build_scoped_ref (tree, tree, tree *);
5321 extern tree build_x_arrow (tree);
5322 extern tree build_m_component_ref (tree, tree);
5323 extern tree build_functional_cast (tree, tree, tsubst_flags_t);
5324 extern tree add_exception_specifier (tree, tree, int);
5325 extern tree merge_exception_specifiers (tree, tree);
5328 extern void init_mangle (void);
5329 extern void mangle_decl (tree);
5330 extern const char *mangle_type_string (tree);
5331 extern tree mangle_typeinfo_for_type (tree);
5332 extern tree mangle_typeinfo_string_for_type (tree);
5333 extern tree mangle_vtbl_for_type (tree);
5334 extern tree mangle_vtt_for_type (tree);
5335 extern tree mangle_ctor_vtbl_for_type (tree, tree);
5336 extern tree mangle_thunk (tree, int, tree, tree);
5337 extern tree mangle_conv_op_name_for_type (tree);
5338 extern tree mangle_guard_variable (tree);
5339 extern tree mangle_ref_init_variable (tree);
5342 extern bool cp_dump_tree (void *, tree);
5344 /* In cp/cp-objcp-common.c. */
5346 extern alias_set_type cxx_get_alias_set (tree);
5347 extern bool cxx_warn_unused_global_decl (const_tree);
5348 extern tree cp_expr_size (const_tree);
5349 extern size_t cp_tree_size (enum tree_code);
5350 extern bool cp_var_mod_type_p (tree, tree);
5351 extern void cxx_initialize_diagnostics (struct diagnostic_context *);
5352 extern int cxx_types_compatible_p (tree, tree);
5353 extern void init_shadowed_var_for_decl (void);
5355 /* in cp-gimplify.c */
5356 extern int cp_gimplify_expr (tree *, gimple_seq *,
5358 extern void cp_genericize (tree);
5359 extern enum omp_clause_default_kind cxx_omp_predetermined_sharing (tree);
5360 extern tree cxx_omp_clause_default_ctor (tree, tree, tree);
5361 extern tree cxx_omp_clause_copy_ctor (tree, tree, tree);
5362 extern tree cxx_omp_clause_assign_op (tree, tree, tree);
5363 extern tree cxx_omp_clause_dtor (tree, tree);
5364 extern void cxx_omp_finish_clause (tree);
5365 extern bool cxx_omp_privatize_by_reference (const_tree);
5369 #endif /* ! GCC_CP_TREE_H */