1 /* Definitions for -*- C++ -*- parsing and type checking.
2 Copyright (C) 1987-2020 Free Software Foundation, Inc.
3 Contributed by Michael Tiemann (tiemann@cygnus.com)
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3, or (at your option)
12 GCC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING3. If not see
19 <http://www.gnu.org/licenses/>. */
25 #include "hard-reg-set.h"
28 /* In order for the format checking to accept the C++ front end
29 diagnostic framework extensions, you must include this file before
30 diagnostic-core.h, not after. We override the definition of GCC_DIAG_STYLE
33 #define GCC_DIAG_STYLE __gcc_cxxdiag__
34 #if defined(GCC_DIAGNOSTIC_CORE_H) || defined (GCC_C_COMMON_H)
36 In order for the format checking to accept the C++ front end diagnostic \
37 framework extensions, you must include this file before diagnostic-core.h and \
38 c-common.h, not after.
40 #include "c-family/c-common.h"
41 #include "diagnostic.h"
43 /* A tree node, together with a location, so that we can track locations
44 (and ranges) during parsing.
46 The location is redundant for node kinds that have locations,
47 but not all node kinds do (e.g. constants, and references to
48 params, locals, etc), so we stash a copy here. */
50 extern location_t
cp_expr_location (const_tree
);
56 m_value (NULL
), m_loc (UNKNOWN_LOCATION
) {}
58 cp_expr (tree value
) :
59 m_value (value
), m_loc (cp_expr_location (m_value
)) {}
61 cp_expr (tree value
, location_t loc
):
62 m_value (value
), m_loc (loc
)
64 protected_set_expr_location (value
, loc
);
67 /* Implicit conversions to tree. */
68 operator tree () const { return m_value
; }
69 tree
& operator* () { return m_value
; }
70 tree
operator* () const { return m_value
; }
71 tree
& operator-> () { return m_value
; }
72 tree
operator-> () const { return m_value
; }
74 tree
get_value () const { return m_value
; }
75 location_t
get_location () const { return m_loc
; }
76 location_t
get_start () const
78 source_range src_range
= get_range_from_loc (line_table
, m_loc
);
79 return src_range
.m_start
;
81 location_t
get_finish () const
83 source_range src_range
= get_range_from_loc (line_table
, m_loc
);
84 return src_range
.m_finish
;
87 void set_location (location_t loc
)
89 protected_set_expr_location (m_value
, loc
);
93 void set_range (location_t start
, location_t finish
)
95 set_location (make_location (m_loc
, start
, finish
));
98 cp_expr
& maybe_add_location_wrapper ()
100 m_value
= maybe_wrap_with_location (m_value
, m_loc
);
110 operator == (const cp_expr
&lhs
, tree rhs
)
112 return lhs
.get_value () == rhs
;
119 CPTI_VTABLE_ENTRY_TYPE
,
121 CPTI_VTABLE_INDEX_TYPE
,
134 CPTI_CONST_TYPE_INFO_TYPE
,
135 CPTI_TYPE_INFO_PTR_TYPE
,
140 CPTI_CTOR_IDENTIFIER
,
141 CPTI_COMPLETE_CTOR_IDENTIFIER
,
142 CPTI_BASE_CTOR_IDENTIFIER
,
143 CPTI_DTOR_IDENTIFIER
,
144 CPTI_COMPLETE_DTOR_IDENTIFIER
,
145 CPTI_BASE_DTOR_IDENTIFIER
,
146 CPTI_DELETING_DTOR_IDENTIFIER
,
147 CPTI_CONV_OP_IDENTIFIER
,
148 CPTI_DELTA_IDENTIFIER
,
149 CPTI_IN_CHARGE_IDENTIFIER
,
150 CPTI_VTT_PARM_IDENTIFIER
,
151 CPTI_AS_BASE_IDENTIFIER
,
152 CPTI_THIS_IDENTIFIER
,
154 CPTI_VPTR_IDENTIFIER
,
155 CPTI_GLOBAL_IDENTIFIER
,
156 CPTI_ANON_IDENTIFIER
,
157 CPTI_AUTO_IDENTIFIER
,
158 CPTI_DECLTYPE_AUTO_IDENTIFIER
,
159 CPTI_INIT_LIST_IDENTIFIER
,
160 CPTI_FOR_RANGE__IDENTIFIER
,
161 CPTI_FOR_BEGIN__IDENTIFIER
,
162 CPTI_FOR_END__IDENTIFIER
,
163 CPTI_FOR_RANGE_IDENTIFIER
,
164 CPTI_FOR_BEGIN_IDENTIFIER
,
165 CPTI_FOR_END_IDENTIFIER
,
166 CPTI_ABI_TAG_IDENTIFIER
,
167 CPTI_ALIGNED_IDENTIFIER
,
168 CPTI_BEGIN_IDENTIFIER
,
172 CPTI_TUPLE_ELEMENT_IDENTIFIER
,
173 CPTI_TUPLE_SIZE_IDENTIFIER
,
174 CPTI_TYPE_IDENTIFIER
,
175 CPTI_VALUE_IDENTIFIER
,
177 CPTI_CLOSURE_IDENTIFIER
,
178 CPTI_HEAP_UNINIT_IDENTIFIER
,
179 CPTI_HEAP_IDENTIFIER
,
180 CPTI_HEAP_DELETED_IDENTIFIER
,
183 CPTI_LANG_NAME_CPLUSPLUS
,
185 CPTI_EMPTY_EXCEPT_SPEC
,
186 CPTI_NOEXCEPT_TRUE_SPEC
,
187 CPTI_NOEXCEPT_FALSE_SPEC
,
188 CPTI_NOEXCEPT_DEFERRED_SPEC
,
191 CPTI_CALL_UNEXPECTED_FN
,
192 CPTI_GET_EXCEPTION_PTR_FN
,
195 CPTI_ALLOCATE_EXCEPTION_FN
,
196 CPTI_FREE_EXCEPTION_FN
,
199 CPTI_ATEXIT_FN_PTR_TYPE
,
211 CPTI_SOURCE_LOCATION_IMPL
,
213 CPTI_FALLBACK_DFLOAT32_TYPE
,
214 CPTI_FALLBACK_DFLOAT64_TYPE
,
215 CPTI_FALLBACK_DFLOAT128_TYPE
,
220 extern GTY(()) tree cp_global_trees
[CPTI_MAX
];
222 #define wchar_decl_node cp_global_trees[CPTI_WCHAR_DECL]
223 #define vtable_entry_type cp_global_trees[CPTI_VTABLE_ENTRY_TYPE]
224 /* The type used to represent an offset by which to adjust the `this'
225 pointer in pointer-to-member types. */
226 #define delta_type_node cp_global_trees[CPTI_DELTA_TYPE]
227 /* The type used to represent an index into the vtable. */
228 #define vtable_index_type cp_global_trees[CPTI_VTABLE_INDEX_TYPE]
230 #define class_type_node cp_global_trees[CPTI_CLASS_TYPE]
231 #define unknown_type_node cp_global_trees[CPTI_UNKNOWN_TYPE]
232 #define init_list_type_node cp_global_trees[CPTI_INIT_LIST_TYPE]
233 #define vtbl_type_node cp_global_trees[CPTI_VTBL_TYPE]
234 #define vtbl_ptr_type_node cp_global_trees[CPTI_VTBL_PTR_TYPE]
235 #define std_node cp_global_trees[CPTI_STD]
236 #define abi_node cp_global_trees[CPTI_ABI]
237 #define global_namespace cp_global_trees[CPTI_GLOBAL]
238 #define global_type_node cp_global_trees[CPTI_GLOBAL_TYPE]
239 #define const_type_info_type_node cp_global_trees[CPTI_CONST_TYPE_INFO_TYPE]
240 #define type_info_ptr_type cp_global_trees[CPTI_TYPE_INFO_PTR_TYPE]
241 #define conv_op_marker cp_global_trees[CPTI_CONV_OP_MARKER]
242 #define abort_fndecl cp_global_trees[CPTI_ABORT_FNDECL]
243 #define current_aggr cp_global_trees[CPTI_AGGR_TAG]
244 #define nullptr_node cp_global_trees[CPTI_NULLPTR]
245 #define nullptr_type_node cp_global_trees[CPTI_NULLPTR_TYPE]
246 /* std::align_val_t */
247 #define align_type_node cp_global_trees[CPTI_ALIGN_TYPE]
249 /* We cache these tree nodes so as to call get_identifier less frequently.
250 For identifiers for functions, including special member functions such
251 as ctors and assignment operators, the nodes can be used (among other
252 things) to iterate over their overloads defined by/for a type. For
255 tree ovlid = assign_op_identifier;
256 tree overloads = get_class_binding (type, ovlid);
257 for (ovl_iterator it (overloads); it; ++it) { ... }
259 iterates over the set of implicitly and explicitly defined overloads
260 of the assignment operator for type (including the copy and move
261 assignment operators, whether deleted or not). */
263 /* The name of a constructor that takes an in-charge parameter to
264 decide whether or not to construct virtual base classes. */
265 #define ctor_identifier cp_global_trees[CPTI_CTOR_IDENTIFIER]
266 /* The name of a constructor that constructs virtual base classes. */
267 #define complete_ctor_identifier cp_global_trees[CPTI_COMPLETE_CTOR_IDENTIFIER]
268 /* The name of a constructor that does not construct virtual base classes. */
269 #define base_ctor_identifier cp_global_trees[CPTI_BASE_CTOR_IDENTIFIER]
270 /* The name of a destructor that takes an in-charge parameter to
271 decide whether or not to destroy virtual base classes and whether
272 or not to delete the object. */
273 #define dtor_identifier cp_global_trees[CPTI_DTOR_IDENTIFIER]
274 /* The name of a destructor that destroys virtual base classes. */
275 #define complete_dtor_identifier cp_global_trees[CPTI_COMPLETE_DTOR_IDENTIFIER]
276 /* The name of a destructor that does not destroy virtual base
278 #define base_dtor_identifier cp_global_trees[CPTI_BASE_DTOR_IDENTIFIER]
279 /* The name of a destructor that destroys virtual base classes, and
280 then deletes the entire object. */
281 #define deleting_dtor_identifier cp_global_trees[CPTI_DELETING_DTOR_IDENTIFIER]
283 /* The name used for conversion operators -- but note that actual
284 conversion functions use special identifiers outside the identifier
286 #define conv_op_identifier cp_global_trees[CPTI_CONV_OP_IDENTIFIER]
288 #define delta_identifier cp_global_trees[CPTI_DELTA_IDENTIFIER]
289 #define in_charge_identifier cp_global_trees[CPTI_IN_CHARGE_IDENTIFIER]
290 /* The name of the parameter that contains a pointer to the VTT to use
291 for this subobject constructor or destructor. */
292 #define vtt_parm_identifier cp_global_trees[CPTI_VTT_PARM_IDENTIFIER]
293 #define as_base_identifier cp_global_trees[CPTI_AS_BASE_IDENTIFIER]
294 #define this_identifier cp_global_trees[CPTI_THIS_IDENTIFIER]
295 #define pfn_identifier cp_global_trees[CPTI_PFN_IDENTIFIER]
296 #define vptr_identifier cp_global_trees[CPTI_VPTR_IDENTIFIER]
297 /* The name of the ::, std & anon namespaces. */
298 #define global_identifier cp_global_trees[CPTI_GLOBAL_IDENTIFIER]
299 #define anon_identifier cp_global_trees[CPTI_ANON_IDENTIFIER]
300 /* auto and declspec(auto) identifiers. */
301 #define auto_identifier cp_global_trees[CPTI_AUTO_IDENTIFIER]
302 #define decltype_auto_identifier cp_global_trees[CPTI_DECLTYPE_AUTO_IDENTIFIER]
303 #define init_list_identifier cp_global_trees[CPTI_INIT_LIST_IDENTIFIER]
304 #define for_range__identifier cp_global_trees[CPTI_FOR_RANGE__IDENTIFIER]
305 #define for_begin__identifier cp_global_trees[CPTI_FOR_BEGIN__IDENTIFIER]
306 #define for_end__identifier cp_global_trees[CPTI_FOR_END__IDENTIFIER]
307 #define for_range_identifier cp_global_trees[CPTI_FOR_RANGE_IDENTIFIER]
308 #define for_begin_identifier cp_global_trees[CPTI_FOR_BEGIN_IDENTIFIER]
309 #define for_end_identifier cp_global_trees[CPTI_FOR_END_IDENTIFIER]
310 #define abi_tag_identifier cp_global_trees[CPTI_ABI_TAG_IDENTIFIER]
311 #define aligned_identifier cp_global_trees[CPTI_ALIGNED_IDENTIFIER]
312 #define begin_identifier cp_global_trees[CPTI_BEGIN_IDENTIFIER]
313 #define end_identifier cp_global_trees[CPTI_END_IDENTIFIER]
314 #define get__identifier cp_global_trees[CPTI_GET_IDENTIFIER]
315 #define gnu_identifier cp_global_trees[CPTI_GNU_IDENTIFIER]
316 #define tuple_element_identifier cp_global_trees[CPTI_TUPLE_ELEMENT_IDENTIFIER]
317 #define tuple_size_identifier cp_global_trees[CPTI_TUPLE_SIZE_IDENTIFIER]
318 #define type_identifier cp_global_trees[CPTI_TYPE_IDENTIFIER]
319 #define value_identifier cp_global_trees[CPTI_VALUE_IDENTIFIER]
320 #define fun_identifier cp_global_trees[CPTI_FUN_IDENTIFIER]
321 #define closure_identifier cp_global_trees[CPTI_CLOSURE_IDENTIFIER]
322 #define heap_uninit_identifier cp_global_trees[CPTI_HEAP_UNINIT_IDENTIFIER]
323 #define heap_identifier cp_global_trees[CPTI_HEAP_IDENTIFIER]
324 #define heap_deleted_identifier cp_global_trees[CPTI_HEAP_DELETED_IDENTIFIER]
325 #define lang_name_c cp_global_trees[CPTI_LANG_NAME_C]
326 #define lang_name_cplusplus cp_global_trees[CPTI_LANG_NAME_CPLUSPLUS]
328 /* Exception specifiers used for throw(), noexcept(true),
329 noexcept(false) and deferred noexcept. We rely on these being
331 #define empty_except_spec cp_global_trees[CPTI_EMPTY_EXCEPT_SPEC]
332 #define noexcept_true_spec cp_global_trees[CPTI_NOEXCEPT_TRUE_SPEC]
333 #define noexcept_false_spec cp_global_trees[CPTI_NOEXCEPT_FALSE_SPEC]
334 #define noexcept_deferred_spec cp_global_trees[CPTI_NOEXCEPT_DEFERRED_SPEC]
336 /* Exception handling function declarations. */
337 #define terminate_fn cp_global_trees[CPTI_TERMINATE_FN]
338 #define call_unexpected_fn cp_global_trees[CPTI_CALL_UNEXPECTED_FN]
339 #define get_exception_ptr_fn cp_global_trees[CPTI_GET_EXCEPTION_PTR_FN]
340 #define begin_catch_fn cp_global_trees[CPTI_BEGIN_CATCH_FN]
341 #define end_catch_fn cp_global_trees[CPTI_END_CATCH_FN]
342 #define allocate_exception_fn cp_global_trees[CPTI_ALLOCATE_EXCEPTION_FN]
343 #define free_exception_fn cp_global_trees[CPTI_FREE_EXCEPTION_FN]
344 #define throw_fn cp_global_trees[CPTI_THROW_FN]
345 #define rethrow_fn cp_global_trees[CPTI_RETHROW_FN]
347 /* The type of the function-pointer argument to "__cxa_atexit" (or
348 "std::atexit", if "__cxa_atexit" is not being used). */
349 #define atexit_fn_ptr_type_node cp_global_trees[CPTI_ATEXIT_FN_PTR_TYPE]
351 /* A pointer to `std::atexit'. */
352 #define atexit_node cp_global_trees[CPTI_ATEXIT]
354 /* A pointer to `__dso_handle'. */
355 #define dso_handle_node cp_global_trees[CPTI_DSO_HANDLE]
357 /* The declaration of the dynamic_cast runtime. */
358 #define dynamic_cast_node cp_global_trees[CPTI_DCAST]
360 /* The type of a destructor. */
361 #define cleanup_type cp_global_trees[CPTI_CLEANUP_TYPE]
363 /* The type of the vtt parameter passed to subobject constructors and
365 #define vtt_parm_type cp_global_trees[CPTI_VTT_PARM_TYPE]
367 /* A node which matches any template argument. */
368 #define any_targ_node cp_global_trees[CPTI_ANY_TARG]
370 /* std::source_location::__impl class. */
371 #define source_location_impl cp_global_trees[CPTI_SOURCE_LOCATION_IMPL]
373 /* Node to indicate default access. This must be distinct from the
374 access nodes in tree.h. */
376 #define access_default_node null_node
378 /* Variant of dfloat{32,64,128}_type_node only used for fundamental
379 rtti purposes if DFP is disabled. */
380 #define fallback_dfloat32_type cp_global_trees[CPTI_FALLBACK_DFLOAT32_TYPE]
381 #define fallback_dfloat64_type cp_global_trees[CPTI_FALLBACK_DFLOAT64_TYPE]
382 #define fallback_dfloat128_type cp_global_trees[CPTI_FALLBACK_DFLOAT128_TYPE]
385 #include "name-lookup.h"
387 /* Usage of TREE_LANG_FLAG_?:
388 0: IDENTIFIER_KIND_BIT_0 (in IDENTIFIER_NODE)
389 NEW_EXPR_USE_GLOBAL (in NEW_EXPR).
390 COND_EXPR_IS_VEC_DELETE (in COND_EXPR).
391 DELETE_EXPR_USE_GLOBAL (in DELETE_EXPR).
392 COMPOUND_EXPR_OVERLOADED (in COMPOUND_EXPR).
393 CLEANUP_P (in TRY_BLOCK)
394 AGGR_INIT_VIA_CTOR_P (in AGGR_INIT_EXPR)
395 PTRMEM_OK_P (in ADDR_EXPR, OFFSET_REF, SCOPE_REF)
396 PAREN_STRING_LITERAL_P (in STRING_CST)
397 CP_DECL_THREAD_LOCAL_P (in VAR_DECL)
398 KOENIG_LOOKUP_P (in CALL_EXPR)
399 STATEMENT_LIST_NO_SCOPE (in STATEMENT_LIST).
400 EXPR_STMT_STMT_EXPR_RESULT (in EXPR_STMT)
401 STMT_EXPR_NO_SCOPE (in STMT_EXPR)
402 BIND_EXPR_TRY_BLOCK (in BIND_EXPR)
403 TYPENAME_IS_ENUM_P (in TYPENAME_TYPE)
404 OMP_FOR_GIMPLIFYING_P (in OMP_FOR, OMP_SIMD, OMP_DISTRIBUTE,
406 BASELINK_QUALIFIED_P (in BASELINK)
407 TARGET_EXPR_IMPLICIT_P (in TARGET_EXPR)
408 TEMPLATE_PARM_PARAMETER_PACK (in TEMPLATE_PARM_INDEX)
409 ATTR_IS_DEPENDENT (in the TREE_LIST for an attribute)
410 ABI_TAG_IMPLICIT (in the TREE_LIST for the argument of abi_tag)
411 LAMBDA_CAPTURE_EXPLICIT_P (in a TREE_LIST in LAMBDA_EXPR_CAPTURE_LIST)
412 CONSTRUCTOR_IS_DIRECT_INIT (in CONSTRUCTOR)
413 LAMBDA_EXPR_CAPTURES_THIS_P (in LAMBDA_EXPR)
414 DECLTYPE_FOR_LAMBDA_CAPTURE (in DECLTYPE_TYPE)
415 VEC_INIT_EXPR_IS_CONSTEXPR (in VEC_INIT_EXPR)
416 DECL_OVERRIDE_P (in FUNCTION_DECL)
417 IMPLICIT_CONV_EXPR_DIRECT_INIT (in IMPLICIT_CONV_EXPR)
418 TRANSACTION_EXPR_IS_STMT (in TRANSACTION_EXPR)
419 CONVERT_EXPR_VBASE_PATH (in CONVERT_EXPR)
420 PACK_EXPANSION_LOCAL_P (in *_PACK_EXPANSION)
421 TINFO_HAS_ACCESS_ERRORS (in TEMPLATE_INFO)
422 SIZEOF_EXPR_TYPE_P (in SIZEOF_EXPR)
423 COMPOUND_REQ_NOEXCEPT_P (in COMPOUND_REQ)
424 WILDCARD_PACK_P (in WILDCARD_DECL)
425 BLOCK_OUTER_CURLY_BRACE_P (in BLOCK)
426 FOLD_EXPR_MODOP_P (*_FOLD_EXPR)
427 IF_STMT_CONSTEXPR_P (IF_STMT)
428 TEMPLATE_TYPE_PARM_FOR_CLASS (TEMPLATE_TYPE_PARM)
429 DECL_NAMESPACE_INLINE_P (in NAMESPACE_DECL)
430 SWITCH_STMT_ALL_CASES_P (in SWITCH_STMT)
431 REINTERPRET_CAST_P (in NOP_EXPR)
432 ALIGNOF_EXPR_STD_P (in ALIGNOF_EXPR)
433 OVL_DEDUP_P (in OVERLOAD)
434 1: IDENTIFIER_KIND_BIT_1 (in IDENTIFIER_NODE)
435 TI_PENDING_TEMPLATE_FLAG.
436 TEMPLATE_PARMS_FOR_INLINE.
437 DELETE_EXPR_USE_VEC (in DELETE_EXPR).
438 (TREE_CALLS_NEW) (in _EXPR or _REF) (commented-out).
439 ICS_ELLIPSIS_FLAG (in _CONV)
440 DECL_INITIALIZED_P (in VAR_DECL)
441 TYPENAME_IS_CLASS_P (in TYPENAME_TYPE)
442 STMT_IS_FULL_EXPR_P (in _STMT)
443 TARGET_EXPR_LIST_INIT_P (in TARGET_EXPR)
444 LAMBDA_EXPR_MUTABLE_P (in LAMBDA_EXPR)
445 DECL_FINAL_P (in FUNCTION_DECL)
446 QUALIFIED_NAME_IS_TEMPLATE (in SCOPE_REF)
447 CONSTRUCTOR_IS_DEPENDENT (in CONSTRUCTOR)
448 TINFO_USED_TEMPLATE_ID (in TEMPLATE_INFO)
449 PACK_EXPANSION_SIZEOF_P (in *_PACK_EXPANSION)
450 OVL_USING_P (in OVERLOAD)
451 IMPLICIT_CONV_EXPR_NONTYPE_ARG (in IMPLICIT_CONV_EXPR)
452 2: IDENTIFIER_KIND_BIT_2 (in IDENTIFIER_NODE)
453 ICS_THIS_FLAG (in _CONV)
454 DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (in VAR_DECL)
455 STATEMENT_LIST_TRY_BLOCK (in STATEMENT_LIST)
456 TYPENAME_IS_RESOLVING_P (in TYPE_NAME_TYPE)
457 TARGET_EXPR_DIRECT_INIT_P (in TARGET_EXPR)
458 FNDECL_USED_AUTO (in FUNCTION_DECL)
459 DECLTYPE_FOR_LAMBDA_PROXY (in DECLTYPE_TYPE)
460 REF_PARENTHESIZED_P (in COMPONENT_REF, INDIRECT_REF, SCOPE_REF, VIEW_CONVERT_EXPR)
461 AGGR_INIT_ZERO_FIRST (in AGGR_INIT_EXPR)
462 CONSTRUCTOR_MUTABLE_POISON (in CONSTRUCTOR)
463 OVL_HIDDEN_P (in OVERLOAD)
464 SWITCH_STMT_NO_BREAK_P (in SWITCH_STMT)
465 LAMBDA_EXPR_CAPTURE_OPTIMIZED (in LAMBDA_EXPR)
466 IMPLICIT_CONV_EXPR_BRACED_INIT (in IMPLICIT_CONV_EXPR)
467 CALL_FROM_NEW_OR_DELETE_P (in CALL_EXPR)
468 3: IMPLICIT_RVALUE_P (in NON_LVALUE_EXPR or STATIC_CAST_EXPR)
469 ICS_BAD_FLAG (in _CONV)
470 FN_TRY_BLOCK_P (in TRY_BLOCK)
471 BIND_EXPR_BODY_BLOCK (in BIND_EXPR)
472 CALL_EXPR_ORDERED_ARGS (in CALL_EXPR, AGGR_INIT_EXPR)
473 DECLTYPE_FOR_REF_CAPTURE (in DECLTYPE_TYPE)
474 CONSTRUCTOR_C99_COMPOUND_LITERAL (in CONSTRUCTOR)
475 OVL_NESTED_P (in OVERLOAD)
476 LAMBDA_EXPR_INSTANTIATED (in LAMBDA_EXPR)
477 Reserved for DECL_MODULE_EXPORT (in DECL_)
478 4: IDENTIFIER_MARKED (IDENTIFIER_NODEs)
479 TREE_HAS_CONSTRUCTOR (in INDIRECT_REF, SAVE_EXPR, CONSTRUCTOR,
480 CALL_EXPR, or FIELD_DECL).
481 DECL_TINFO_P (in VAR_DECL)
482 FUNCTION_REF_QUALIFIED (in FUNCTION_TYPE, METHOD_TYPE)
483 OVL_LOOKUP_P (in OVERLOAD)
484 LOOKUP_FOUND_P (in RECORD_TYPE, UNION_TYPE, NAMESPACE_DECL)
485 5: IDENTIFIER_VIRTUAL_P (in IDENTIFIER_NODE)
486 FUNCTION_RVALUE_QUALIFIED (in FUNCTION_TYPE, METHOD_TYPE)
487 CALL_EXPR_REVERSE_ARGS (in CALL_EXPR, AGGR_INIT_EXPR)
488 CONSTRUCTOR_PLACEHOLDER_BOUNDARY (in CONSTRUCTOR)
489 6: TYPE_MARKED_P (in _TYPE)
490 DECL_NONTRIVIALLY_INITIALIZED_P (in VAR_DECL)
491 RANGE_FOR_IVDEP (in RANGE_FOR_STMT)
492 CALL_EXPR_OPERATOR_SYNTAX (in CALL_EXPR, AGGR_INIT_EXPR)
493 CONSTRUCTOR_IS_DESIGNATED_INIT (in CONSTRUCTOR)
495 Usage of TYPE_LANG_FLAG_?:
497 1: TYPE_HAS_USER_CONSTRUCTOR.
498 2: TYPE_HAS_LATE_RETURN_TYPE (in FUNCTION_TYPE, METHOD_TYPE)
499 TYPE_PTRMEMFUNC_FLAG (in RECORD_TYPE)
500 4: TYPE_HAS_NONTRIVIAL_DESTRUCTOR
501 5: CLASS_TYPE_P (in RECORD_TYPE and UNION_TYPE)
502 ENUM_FIXED_UNDERLYING_TYPE_P (in ENUMERAL_TYPE)
503 AUTO_IS_DECLTYPE (in TEMPLATE_TYPE_PARM)
504 6: TYPE_DEPENDENT_P_VALID
506 Usage of DECL_LANG_FLAG_?:
507 0: DECL_TEMPLATE_PARM_P (in PARM_DECL, CONST_DECL, TYPE_DECL, or TEMPLATE_DECL)
508 DECL_LOCAL_DECL_P (in FUNCTION_DECL, VAR_DECL)
509 DECL_MUTABLE_P (in FIELD_DECL)
510 DECL_DEPENDENT_P (in USING_DECL)
511 LABEL_DECL_BREAK (in LABEL_DECL)
512 1: C_TYPEDEF_EXPLICITLY_SIGNED (in TYPE_DECL).
513 DECL_TEMPLATE_INSTANTIATED (in a VAR_DECL or a FUNCTION_DECL)
514 DECL_MEMBER_TEMPLATE_P (in TEMPLATE_DECL)
515 USING_DECL_TYPENAME_P (in USING_DECL)
516 DECL_VLA_CAPTURE_P (in FIELD_DECL)
517 DECL_ARRAY_PARAMETER_P (in PARM_DECL)
518 LABEL_DECL_CONTINUE (in LABEL_DECL)
519 2: DECL_THIS_EXTERN (in VAR_DECL, FUNCTION_DECL or PARM_DECL)
520 DECL_IMPLICIT_TYPEDEF_P (in a TYPE_DECL)
521 DECL_CONSTRAINT_VAR_P (in a PARM_DECL)
522 TEMPLATE_DECL_COMPLEX_ALIAS_P (in TEMPLATE_DECL)
523 DECL_INSTANTIATING_NSDMI_P (in a FIELD_DECL)
524 LABEL_DECL_CDTOR (in LABEL_DECL)
526 4: DECL_C_BIT_FIELD (in a FIELD_DECL)
527 DECL_ANON_UNION_VAR_P (in a VAR_DECL)
528 DECL_SELF_REFERENCE_P (in a TYPE_DECL)
529 DECL_INVALID_OVERRIDER_P (in a FUNCTION_DECL)
530 5: DECL_INTERFACE_KNOWN.
531 6: DECL_THIS_STATIC (in VAR_DECL, FUNCTION_DECL or PARM_DECL)
532 DECL_FIELD_IS_BASE (in FIELD_DECL)
533 TYPE_DECL_ALIAS_P (in TYPE_DECL)
534 7: DECL_THUNK_P (in a member FUNCTION_DECL)
535 DECL_NORMAL_CAPTURE_P (in FIELD_DECL)
536 DECL_DECLARED_CONSTINIT_P (in VAR_DECL)
537 8: DECL_DECLARED_CONSTEXPR_P (in VAR_DECL, FUNCTION_DECL)
539 Usage of language-independent fields in a language-dependent manner:
542 This field is used by TYPENAME_TYPEs, TEMPLATE_TYPE_PARMs, and so
543 forth as a substitute for the mark bits provided in `lang_type'.
544 At present, only the six low-order bits are used.
547 For a FUNCTION_TYPE or METHOD_TYPE, this is TYPE_RAISES_EXCEPTIONS.
548 For a POINTER_TYPE (to a METHOD_TYPE), this is TYPE_PTRMEMFUNC_TYPE.
549 For an ENUMERAL_TYPE, BOUND_TEMPLATE_TEMPLATE_PARM_TYPE,
550 RECORD_TYPE or UNION_TYPE this is TYPE_TEMPLATE_INFO,
553 For a binfo, this is a TREE_LIST. There is an entry for each
554 virtual function declared either in BINFO or its direct and
555 indirect primary bases.
557 The BV_DELTA of each node gives the amount by which to adjust the
558 `this' pointer when calling the function. If the method is an
559 overridden version of a base class method, then it is assumed
560 that, prior to adjustment, the this pointer points to an object
563 The BV_VCALL_INDEX of each node, if non-NULL, gives the vtable
564 index of the vcall offset for this entry.
566 The BV_FN is the declaration for the virtual function itself.
568 If BV_LOST_PRIMARY is set, it means that this entry is for a lost
569 primary virtual base and can be left null in the vtable.
572 This is an expression with POINTER_TYPE that gives the value
573 to which the vptr should be initialized. Use get_vtbl_decl_for_binfo
574 to extract the VAR_DECL for the complete vtable.
577 This field is NULL for a non-virtual function. For a virtual
578 function, it is eventually set to an INTEGER_CST indicating the
579 index in the vtable at which this function can be found. When
580 a virtual function is declared, but before it is known what
581 function is overridden, this field is the error_mark_node.
583 Temporarily, it may be set to a TREE_LIST whose TREE_VALUE is
584 the virtual function this one overrides, and whose TREE_CHAIN is
585 the old DECL_VINDEX. */
587 /* Language-specific tree checkers. */
589 #define VAR_OR_FUNCTION_DECL_CHECK(NODE) \
590 TREE_CHECK2(NODE,VAR_DECL,FUNCTION_DECL)
592 #define TYPE_FUNCTION_OR_TEMPLATE_DECL_CHECK(NODE) \
593 TREE_CHECK3(NODE,TYPE_DECL,TEMPLATE_DECL,FUNCTION_DECL)
595 #define TYPE_FUNCTION_OR_TEMPLATE_DECL_P(NODE) \
596 (TREE_CODE (NODE) == TYPE_DECL || TREE_CODE (NODE) == TEMPLATE_DECL \
597 || TREE_CODE (NODE) == FUNCTION_DECL)
599 #define VAR_FUNCTION_OR_PARM_DECL_CHECK(NODE) \
600 TREE_CHECK3(NODE,VAR_DECL,FUNCTION_DECL,PARM_DECL)
602 #define VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK(NODE) \
603 TREE_CHECK4(NODE,VAR_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL)
605 #define VAR_TEMPL_TYPE_FIELD_OR_FUNCTION_DECL_CHECK(NODE) \
606 TREE_CHECK5(NODE,VAR_DECL,FIELD_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL)
608 #define BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK(NODE) \
609 TREE_CHECK(NODE,BOUND_TEMPLATE_TEMPLATE_PARM)
611 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
613 /* Returns t iff the node can have a TEMPLATE_INFO field. */
616 template_info_decl_check (const_tree t
, const char* f
, int l
, const char* fn
)
618 switch (TREE_CODE (t
))
626 return const_cast<tree
>(t
);
630 tree_check_failed (t
, f
, l
, fn
,
631 VAR_DECL
, FUNCTION_DECL
, FIELD_DECL
, TYPE_DECL
,
632 CONCEPT_DECL
, TEMPLATE_DECL
, 0);
636 #define TEMPLATE_INFO_DECL_CHECK(NODE) \
637 template_info_decl_check ((NODE), __FILE__, __LINE__, __FUNCTION__)
639 #define THUNK_FUNCTION_CHECK(NODE) __extension__ \
640 ({ __typeof (NODE) const __t = (NODE); \
641 if (TREE_CODE (__t) != FUNCTION_DECL || !__t->decl_common.lang_specific \
642 || !__t->decl_common.lang_specific->u.fn.thunk_p) \
643 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, 0); \
646 #else /* ENABLE_TREE_CHECKING */
648 #define TEMPLATE_INFO_DECL_CHECK(NODE) (NODE)
649 #define THUNK_FUNCTION_CHECK(NODE) (NODE)
651 #endif /* ENABLE_TREE_CHECKING */
653 /* Language-dependent contents of an identifier. */
655 struct GTY(()) lang_identifier
{
656 struct c_common_identifier c_common
;
657 cxx_binding
*bindings
;
660 /* Return a typed pointer version of T if it designates a
661 C++ front-end identifier. */
662 inline lang_identifier
*
663 identifier_p (tree t
)
665 if (TREE_CODE (t
) == IDENTIFIER_NODE
)
666 return (lang_identifier
*) t
;
670 #define LANG_IDENTIFIER_CAST(NODE) \
671 ((struct lang_identifier*)IDENTIFIER_NODE_CHECK (NODE))
673 struct GTY(()) template_parm_index
{
674 struct tree_common common
;
681 struct GTY(()) ptrmem_cst
{
682 struct tree_common common
;
685 typedef struct ptrmem_cst
* ptrmem_cst_t
;
687 #define CLEANUP_P(NODE) TREE_LANG_FLAG_0 (TRY_BLOCK_CHECK (NODE))
689 #define BIND_EXPR_TRY_BLOCK(NODE) \
690 TREE_LANG_FLAG_0 (BIND_EXPR_CHECK (NODE))
692 /* Used to mark the block around the member initializers and cleanups. */
693 #define BIND_EXPR_BODY_BLOCK(NODE) \
694 TREE_LANG_FLAG_3 (BIND_EXPR_CHECK (NODE))
695 #define FUNCTION_NEEDS_BODY_BLOCK(NODE) \
696 (DECL_CONSTRUCTOR_P (NODE) || DECL_DESTRUCTOR_P (NODE) \
697 || LAMBDA_FUNCTION_P (NODE))
699 #define STATEMENT_LIST_NO_SCOPE(NODE) \
700 TREE_LANG_FLAG_0 (STATEMENT_LIST_CHECK (NODE))
701 #define STATEMENT_LIST_TRY_BLOCK(NODE) \
702 TREE_LANG_FLAG_2 (STATEMENT_LIST_CHECK (NODE))
704 /* Mark the outer curly brace BLOCK. */
705 #define BLOCK_OUTER_CURLY_BRACE_P(NODE) TREE_LANG_FLAG_0 (BLOCK_CHECK (NODE))
707 /* Nonzero if this statement should be considered a full-expression,
708 i.e., if temporaries created during this statement should have
709 their destructors run at the end of this statement. */
710 #define STMT_IS_FULL_EXPR_P(NODE) TREE_LANG_FLAG_1 ((NODE))
712 /* Marks the result of a statement expression. */
713 #define EXPR_STMT_STMT_EXPR_RESULT(NODE) \
714 TREE_LANG_FLAG_0 (EXPR_STMT_CHECK (NODE))
716 /* Nonzero if this statement-expression does not have an associated scope. */
717 #define STMT_EXPR_NO_SCOPE(NODE) \
718 TREE_LANG_FLAG_0 (STMT_EXPR_CHECK (NODE))
720 #define COND_EXPR_IS_VEC_DELETE(NODE) \
721 TREE_LANG_FLAG_0 (COND_EXPR_CHECK (NODE))
723 /* Nonzero if this NOP_EXPR is a reinterpret_cast. Such conversions
724 are not constexprs. Other NOP_EXPRs are. */
725 #define REINTERPRET_CAST_P(NODE) \
726 TREE_LANG_FLAG_0 (NOP_EXPR_CHECK (NODE))
728 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, in the usual
730 #define same_type_p(TYPE1, TYPE2) \
731 comptypes ((TYPE1), (TYPE2), COMPARE_STRICT)
733 /* Returns nonzero iff NODE is a declaration for the global function
735 #define DECL_MAIN_P(NODE) \
736 (DECL_EXTERN_C_FUNCTION_P (NODE) \
737 && DECL_NAME (NODE) != NULL_TREE \
738 && MAIN_NAME_P (DECL_NAME (NODE)) \
741 /* Lookup walker marking. */
742 #define LOOKUP_SEEN_P(NODE) TREE_VISITED(NODE)
743 #define LOOKUP_FOUND_P(NODE) \
744 TREE_LANG_FLAG_4 (TREE_CHECK3(NODE,RECORD_TYPE,UNION_TYPE,NAMESPACE_DECL))
746 /* These two accessors should only be used by OVL manipulators.
747 Other users should use iterators and convenience functions. */
748 #define OVL_FUNCTION(NODE) \
749 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->function)
750 #define OVL_CHAIN(NODE) \
751 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->common.chain)
753 /* If set, this or a subsequent overload contains decls that need deduping. */
754 #define OVL_DEDUP_P(NODE) TREE_LANG_FLAG_0 (OVERLOAD_CHECK (NODE))
755 /* If set, this was imported in a using declaration. */
756 #define OVL_USING_P(NODE) TREE_LANG_FLAG_1 (OVERLOAD_CHECK (NODE))
757 /* If set, this overload is a hidden decl. */
758 #define OVL_HIDDEN_P(NODE) TREE_LANG_FLAG_2 (OVERLOAD_CHECK (NODE))
759 /* If set, this overload contains a nested overload. */
760 #define OVL_NESTED_P(NODE) TREE_LANG_FLAG_3 (OVERLOAD_CHECK (NODE))
761 /* If set, this overload was constructed during lookup. */
762 #define OVL_LOOKUP_P(NODE) TREE_LANG_FLAG_4 (OVERLOAD_CHECK (NODE))
764 /* The first decl of an overload. */
765 #define OVL_FIRST(NODE) ovl_first (NODE)
766 /* The name of the overload set. */
767 #define OVL_NAME(NODE) DECL_NAME (OVL_FIRST (NODE))
769 /* Whether this is a set of overloaded functions. TEMPLATE_DECLS are
770 always wrapped in an OVERLOAD, so we don't need to check them
772 #define OVL_P(NODE) \
773 (TREE_CODE (NODE) == FUNCTION_DECL || TREE_CODE (NODE) == OVERLOAD)
774 /* Whether this is a single member overload. */
775 #define OVL_SINGLE_P(NODE) \
776 (TREE_CODE (NODE) != OVERLOAD || !OVL_CHAIN (NODE))
778 /* OVL_HIDDEN_P nodes come before other nodes. */
780 struct GTY(()) tree_overload
{
781 struct tree_common common
;
785 /* Iterator for a 1 dimensional overload. Permits iterating over the
786 outer level of a 2-d overload when explicitly enabled. */
790 const bool allow_inner
; /* Only used when checking. */
793 explicit ovl_iterator (tree o
, bool allow
= false)
794 : ovl (o
), allow_inner (allow
)
799 /* Do not duplicate. */
800 ovl_iterator
&operator= (const ovl_iterator
&);
801 ovl_iterator (const ovl_iterator
&);
804 operator bool () const
808 ovl_iterator
&operator++ ()
810 ovl
= TREE_CODE (ovl
) != OVERLOAD
? NULL_TREE
: OVL_CHAIN (ovl
);
813 tree
operator* () const
815 tree fn
= TREE_CODE (ovl
) != OVERLOAD
? ovl
: OVL_FUNCTION (ovl
);
817 /* Check this is not an unexpected 2-dimensional overload. */
818 gcc_checking_assert (allow_inner
|| TREE_CODE (fn
) != OVERLOAD
);
824 /* Whether this overload was introduced by a using decl. */
825 bool using_p () const
827 return (TREE_CODE (ovl
) == USING_DECL
828 || (TREE_CODE (ovl
) == OVERLOAD
&& OVL_USING_P (ovl
)));
830 bool hidden_p () const
832 return TREE_CODE (ovl
) == OVERLOAD
&& OVL_HIDDEN_P (ovl
);
836 tree
remove_node (tree head
)
838 return remove_node (head
, ovl
);
840 tree
reveal_node (tree head
)
842 return reveal_node (head
, ovl
);
846 /* If we have a nested overload, point at the inner overload and
847 return the next link on the outer one. */
852 if (ovl
&& TREE_CODE (ovl
) == OVERLOAD
&& OVL_NESTED_P (ovl
))
855 ovl
= OVL_FUNCTION (ovl
);
859 /* Restore an outer nested overload. */
860 void pop (tree outer
)
862 gcc_checking_assert (!ovl
);
867 /* We make these static functions to avoid the address of the
868 iterator escaping the local context. */
869 static tree
remove_node (tree head
, tree node
);
870 static tree
reveal_node (tree ovl
, tree node
);
873 /* Iterator over a (potentially) 2 dimensional overload, which is
874 produced by name lookup. */
876 class lkp_iterator
: public ovl_iterator
{
877 typedef ovl_iterator parent
;
882 explicit lkp_iterator (tree o
)
883 : parent (o
, true), outer (maybe_push ())
888 lkp_iterator
&operator++ ()
890 bool repush
= !outer
;
892 if (!parent::operator++ () && !repush
)
899 outer
= maybe_push ();
905 /* hash traits for declarations. Hashes potential overload sets via
908 struct named_decl_hash
: ggc_remove
<tree
> {
909 typedef tree value_type
; /* A DECL or OVERLOAD */
910 typedef tree compare_type
; /* An identifier. */
912 inline static hashval_t
hash (const value_type decl
);
913 inline static bool equal (const value_type existing
, compare_type candidate
);
915 static const bool empty_zero_p
= true;
916 static inline void mark_empty (value_type
&p
) {p
= NULL_TREE
;}
917 static inline bool is_empty (value_type p
) {return !p
;}
919 /* Nothing is deletable. Everything is insertable. */
920 static bool is_deleted (value_type
) { return false; }
921 static void mark_deleted (value_type
) { gcc_unreachable (); }
924 /* Simplified unique_ptr clone to release a tree vec on exit. */
929 typedef vec
<tree
, va_gc
> vec_t
;
931 releasing_vec (vec_t
*v
): v(v
) { }
932 releasing_vec (): v(make_tree_vector ()) { }
934 /* Copy ops are deliberately declared but not defined,
935 copies must always be elided. */
936 releasing_vec (const releasing_vec
&);
937 releasing_vec
&operator= (const releasing_vec
&);
939 vec_t
&operator* () const { return *v
; }
940 vec_t
*operator-> () const { return v
; }
941 vec_t
*get() const { return v
; }
942 operator vec_t
*() const { return v
; }
943 vec_t
** operator& () { return &v
; }
945 /* Breaks pointer/value consistency for convenience. */
946 tree
& operator[] (unsigned i
) const { return (*v
)[i
]; }
948 ~releasing_vec() { release_tree_vector (v
); }
952 /* Forwarding functions for vec_safe_* that might reallocate. */
953 inline tree
* vec_safe_push (releasing_vec
& r
, const tree
&t CXX_MEM_STAT_INFO
)
954 { return vec_safe_push (*&r
, t PASS_MEM_STAT
); }
955 inline bool vec_safe_reserve (releasing_vec
& r
, unsigned n
, bool e
= false CXX_MEM_STAT_INFO
)
956 { return vec_safe_reserve (*&r
, n
, e PASS_MEM_STAT
); }
957 inline unsigned vec_safe_length (releasing_vec
&r
)
958 { return r
->length(); }
959 inline void vec_safe_splice (releasing_vec
&r
, vec
<tree
, va_gc
> *p CXX_MEM_STAT_INFO
)
960 { vec_safe_splice (*&r
, p PASS_MEM_STAT
); }
961 void release_tree_vector (releasing_vec
&); // cause link error
963 struct GTY(()) tree_template_decl
{
964 struct tree_decl_common common
;
969 /* Returns true iff NODE is a BASELINK. */
970 #define BASELINK_P(NODE) \
971 (TREE_CODE (NODE) == BASELINK)
972 /* The BINFO indicating the base in which lookup found the
973 BASELINK_FUNCTIONS. */
974 #define BASELINK_BINFO(NODE) \
975 (((struct tree_baselink*) BASELINK_CHECK (NODE))->binfo)
976 /* The functions referred to by the BASELINK; either a FUNCTION_DECL,
977 a TEMPLATE_DECL, an OVERLOAD, or a TEMPLATE_ID_EXPR. */
978 #define BASELINK_FUNCTIONS(NODE) \
979 (((struct tree_baselink*) BASELINK_CHECK (NODE))->functions)
980 /* If T is a BASELINK, grab the functions, otherwise just T, which is
981 expected to already be a (list of) functions. */
982 #define MAYBE_BASELINK_FUNCTIONS(T) \
983 (BASELINK_P (T) ? BASELINK_FUNCTIONS (T) : T)
984 /* The BINFO in which the search for the functions indicated by this baselink
985 began. This base is used to determine the accessibility of functions
986 selected by overload resolution. */
987 #define BASELINK_ACCESS_BINFO(NODE) \
988 (((struct tree_baselink*) BASELINK_CHECK (NODE))->access_binfo)
989 /* For a type-conversion operator, the BASELINK_OPTYPE indicates the type
990 to which the conversion should occur. This value is important if
991 the BASELINK_FUNCTIONS include a template conversion operator --
992 the BASELINK_OPTYPE can be used to determine what type the user
994 #define BASELINK_OPTYPE(NODE) \
995 (TREE_CHAIN (BASELINK_CHECK (NODE)))
996 /* Nonzero if this baselink was from a qualified lookup. */
997 #define BASELINK_QUALIFIED_P(NODE) \
998 TREE_LANG_FLAG_0 (BASELINK_CHECK (NODE))
1000 struct GTY(()) tree_baselink
{
1001 struct tree_common common
;
1007 /* The different kinds of ids that we encounter. */
1011 /* Not an id at all. */
1013 /* An unqualified-id that is not a template-id. */
1014 CP_ID_KIND_UNQUALIFIED
,
1015 /* An unqualified-id that is a dependent name. */
1016 CP_ID_KIND_UNQUALIFIED_DEPENDENT
,
1017 /* An unqualified template-id. */
1018 CP_ID_KIND_TEMPLATE_ID
,
1019 /* A qualified-id. */
1020 CP_ID_KIND_QUALIFIED
1024 /* The various kinds of C++0x warnings we encounter. */
1028 /* extended initializer lists */
1029 CPP0X_INITIALIZER_LISTS
,
1030 /* explicit conversion operators */
1031 CPP0X_EXPLICIT_CONVERSION
,
1032 /* variadic templates */
1033 CPP0X_VARIADIC_TEMPLATES
,
1034 /* lambda expressions */
1040 /* defaulted and deleted functions */
1041 CPP0X_DEFAULTED_DELETED
,
1042 /* inline namespaces */
1043 CPP0X_INLINE_NAMESPACES
,
1044 /* override controls, override/final */
1045 CPP0X_OVERRIDE_CONTROLS
,
1046 /* non-static data member initializers */
1048 /* user defined literals */
1049 CPP0X_USER_DEFINED_LITERALS
,
1050 /* delegating constructors */
1051 CPP0X_DELEGATING_CTORS
,
1052 /* inheriting constructors */
1053 CPP0X_INHERITING_CTORS
,
1054 /* C++11 attributes */
1056 /* ref-qualified member functions */
1060 /* The various kinds of operation used by composite_pointer_type. */
1062 enum composite_pointer_operation
1068 /* conditional expression */
1069 CPO_CONDITIONAL_EXPR
1072 /* Possible cases of expression list used by build_x_compound_expr_from_list. */
1073 enum expr_list_kind
{
1074 ELK_INIT
, /* initializer */
1075 ELK_MEM_INIT
, /* member initializer */
1076 ELK_FUNC_CAST
/* functional cast */
1079 /* Possible cases of implicit bad rhs conversions. */
1080 enum impl_conv_rhs
{
1081 ICR_DEFAULT_ARGUMENT
, /* default argument */
1082 ICR_CONVERTING
, /* converting */
1083 ICR_INIT
, /* initialization */
1084 ICR_ARGPASS
, /* argument passing */
1085 ICR_RETURN
, /* return */
1086 ICR_ASSIGN
/* assignment */
1089 /* Possible cases of implicit or explicit bad conversions to void. */
1090 enum impl_conv_void
{
1091 ICV_CAST
, /* (explicit) conversion to void */
1092 ICV_SECOND_OF_COND
, /* second operand of conditional expression */
1093 ICV_THIRD_OF_COND
, /* third operand of conditional expression */
1094 ICV_RIGHT_OF_COMMA
, /* right operand of comma operator */
1095 ICV_LEFT_OF_COMMA
, /* left operand of comma operator */
1096 ICV_STATEMENT
, /* statement */
1097 ICV_THIRD_IN_FOR
/* for increment expression */
1100 /* Possible invalid uses of an abstract class that might not have a
1101 specific associated declaration. */
1102 enum GTY(()) abstract_class_use
{
1103 ACU_UNKNOWN
, /* unknown or decl provided */
1104 ACU_CAST
, /* cast to abstract class */
1105 ACU_NEW
, /* new-expression of abstract class */
1106 ACU_THROW
, /* throw-expression of abstract class */
1107 ACU_CATCH
, /* catch-parameter of abstract class */
1108 ACU_ARRAY
, /* array of abstract class */
1109 ACU_RETURN
, /* return type of abstract class */
1110 ACU_PARM
/* parameter type of abstract class */
1113 /* Macros for access to language-specific slots in an identifier. */
1115 /* The IDENTIFIER_BINDING is the innermost cxx_binding for the
1116 identifier. Its PREVIOUS is the next outermost binding. Each
1117 VALUE field is a DECL for the associated declaration. Thus,
1118 name lookup consists simply of pulling off the node at the front
1119 of the list (modulo oddities for looking up the names of types,
1120 and such.) You can use SCOPE field to determine the scope
1121 that bound the name. */
1122 #define IDENTIFIER_BINDING(NODE) \
1123 (LANG_IDENTIFIER_CAST (NODE)->bindings)
1125 /* TREE_TYPE only indicates on local and class scope the current
1126 type. For namespace scope, the presence of a type in any namespace
1127 is indicated with global_type_node, and the real type behind must
1128 be found through lookup. */
1129 #define IDENTIFIER_TYPE_VALUE(NODE) identifier_type_value (NODE)
1130 #define REAL_IDENTIFIER_TYPE_VALUE(NODE) TREE_TYPE (NODE)
1131 #define SET_IDENTIFIER_TYPE_VALUE(NODE,TYPE) (TREE_TYPE (NODE) = (TYPE))
1132 #define IDENTIFIER_HAS_TYPE_VALUE(NODE) (IDENTIFIER_TYPE_VALUE (NODE) ? 1 : 0)
1134 /* Kinds of identifiers. Values are carefully chosen. */
1135 enum cp_identifier_kind
{
1136 cik_normal
= 0, /* Not a special identifier. */
1137 cik_keyword
= 1, /* A keyword. */
1138 cik_ctor
= 2, /* Constructor (in-chg, complete or base). */
1139 cik_dtor
= 3, /* Destructor (in-chg, deleting, complete or
1141 cik_simple_op
= 4, /* Non-assignment operator name. */
1142 cik_assign_op
= 5, /* An assignment operator name. */
1143 cik_conv_op
= 6, /* Conversion operator name. */
1144 cik_reserved_for_udlit
= 7, /* Not yet in use */
1149 #define IDENTIFIER_KIND_BIT_0(NODE) \
1150 TREE_LANG_FLAG_0 (IDENTIFIER_NODE_CHECK (NODE))
1151 #define IDENTIFIER_KIND_BIT_1(NODE) \
1152 TREE_LANG_FLAG_1 (IDENTIFIER_NODE_CHECK (NODE))
1153 #define IDENTIFIER_KIND_BIT_2(NODE) \
1154 TREE_LANG_FLAG_2 (IDENTIFIER_NODE_CHECK (NODE))
1156 /* Used by various search routines. */
1157 #define IDENTIFIER_MARKED(NODE) \
1158 TREE_LANG_FLAG_4 (IDENTIFIER_NODE_CHECK (NODE))
1160 /* Nonzero if this identifier is used as a virtual function name somewhere
1161 (optimizes searches). */
1162 #define IDENTIFIER_VIRTUAL_P(NODE) \
1163 TREE_LANG_FLAG_5 (IDENTIFIER_NODE_CHECK (NODE))
1165 /* True if this identifier is a reserved word. C_RID_CODE (node) is
1166 then the RID_* value of the keyword. Value 1. */
1167 #define IDENTIFIER_KEYWORD_P(NODE) \
1168 ((!IDENTIFIER_KIND_BIT_2 (NODE)) \
1169 & (!IDENTIFIER_KIND_BIT_1 (NODE)) \
1170 & IDENTIFIER_KIND_BIT_0 (NODE))
1172 /* True if this identifier is the name of a constructor or
1173 destructor. Value 2 or 3. */
1174 #define IDENTIFIER_CDTOR_P(NODE) \
1175 ((!IDENTIFIER_KIND_BIT_2 (NODE)) \
1176 & IDENTIFIER_KIND_BIT_1 (NODE))
1178 /* True if this identifier is the name of a constructor. Value 2. */
1179 #define IDENTIFIER_CTOR_P(NODE) \
1180 (IDENTIFIER_CDTOR_P(NODE) \
1181 & (!IDENTIFIER_KIND_BIT_0 (NODE)))
1183 /* True if this identifier is the name of a destructor. Value 3. */
1184 #define IDENTIFIER_DTOR_P(NODE) \
1185 (IDENTIFIER_CDTOR_P(NODE) \
1186 & IDENTIFIER_KIND_BIT_0 (NODE))
1188 /* True if this identifier is for any operator name (including
1189 conversions). Value 4, 5, 6 or 7. */
1190 #define IDENTIFIER_ANY_OP_P(NODE) \
1191 (IDENTIFIER_KIND_BIT_2 (NODE))
1193 /* True if this identifier is for an overloaded operator. Values 4, 5. */
1194 #define IDENTIFIER_OVL_OP_P(NODE) \
1195 (IDENTIFIER_ANY_OP_P (NODE) \
1196 & (!IDENTIFIER_KIND_BIT_1 (NODE)))
1198 /* True if this identifier is for any assignment. Values 5. */
1199 #define IDENTIFIER_ASSIGN_OP_P(NODE) \
1200 (IDENTIFIER_OVL_OP_P (NODE) \
1201 & IDENTIFIER_KIND_BIT_0 (NODE))
1203 /* True if this identifier is the name of a type-conversion
1204 operator. Value 7. */
1205 #define IDENTIFIER_CONV_OP_P(NODE) \
1206 (IDENTIFIER_ANY_OP_P (NODE) \
1207 & IDENTIFIER_KIND_BIT_1 (NODE) \
1208 & (!IDENTIFIER_KIND_BIT_0 (NODE)))
1210 /* True if this identifier is a new or delete operator. */
1211 #define IDENTIFIER_NEWDEL_OP_P(NODE) \
1212 (IDENTIFIER_OVL_OP_P (NODE) \
1213 && IDENTIFIER_OVL_OP_FLAGS (NODE) & OVL_OP_FLAG_ALLOC)
1215 /* True if this identifier is a new operator. */
1216 #define IDENTIFIER_NEW_OP_P(NODE) \
1217 (IDENTIFIER_OVL_OP_P (NODE) \
1218 && (IDENTIFIER_OVL_OP_FLAGS (NODE) \
1219 & (OVL_OP_FLAG_ALLOC | OVL_OP_FLAG_DELETE)) == OVL_OP_FLAG_ALLOC)
1221 /* Access a C++-specific index for identifier NODE.
1222 Used to optimize operator mappings etc. */
1223 #define IDENTIFIER_CP_INDEX(NODE) \
1224 (IDENTIFIER_NODE_CHECK(NODE)->base.u.bits.address_space)
1226 /* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */
1227 #define C_TYPE_FIELDS_READONLY(TYPE) \
1228 (LANG_TYPE_CLASS_CHECK (TYPE)->fields_readonly)
1230 /* The tokens stored in the unparsed operand. */
1232 #define DEFPARSE_TOKENS(NODE) \
1233 (((struct tree_deferred_parse *)DEFERRED_PARSE_CHECK (NODE))->tokens)
1234 #define DEFPARSE_INSTANTIATIONS(NODE) \
1235 (((struct tree_deferred_parse *)DEFERRED_PARSE_CHECK (NODE))->instantiations)
1237 struct GTY (()) tree_deferred_parse
{
1238 struct tree_base base
;
1239 struct cp_token_cache
*tokens
;
1240 vec
<tree
, va_gc
> *instantiations
;
1244 #define DEFERRED_NOEXCEPT_PATTERN(NODE) \
1245 (((struct tree_deferred_noexcept *)DEFERRED_NOEXCEPT_CHECK (NODE))->pattern)
1246 #define DEFERRED_NOEXCEPT_ARGS(NODE) \
1247 (((struct tree_deferred_noexcept *)DEFERRED_NOEXCEPT_CHECK (NODE))->args)
1248 #define DEFERRED_NOEXCEPT_SPEC_P(NODE) \
1249 ((NODE) && (TREE_PURPOSE (NODE)) \
1250 && (TREE_CODE (TREE_PURPOSE (NODE)) == DEFERRED_NOEXCEPT))
1251 #define UNEVALUATED_NOEXCEPT_SPEC_P(NODE) \
1252 (DEFERRED_NOEXCEPT_SPEC_P (NODE) \
1253 && DEFERRED_NOEXCEPT_PATTERN (TREE_PURPOSE (NODE)) == NULL_TREE)
1254 #define UNPARSED_NOEXCEPT_SPEC_P(NODE) \
1255 ((NODE) && (TREE_PURPOSE (NODE)) \
1256 && (TREE_CODE (TREE_PURPOSE (NODE)) == DEFERRED_PARSE))
1258 struct GTY (()) tree_deferred_noexcept
{
1259 struct tree_base base
;
1265 /* The condition associated with the static assertion. This must be
1266 an integral constant expression. */
1267 #define STATIC_ASSERT_CONDITION(NODE) \
1268 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->condition)
1270 /* The message associated with the static assertion. This must be a
1271 string constant, which will be emitted as an error message when the
1272 static assert condition is false. */
1273 #define STATIC_ASSERT_MESSAGE(NODE) \
1274 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->message)
1276 /* Source location information for a static assertion. */
1277 #define STATIC_ASSERT_SOURCE_LOCATION(NODE) \
1278 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->location)
1280 struct GTY (()) tree_static_assert
{
1281 struct tree_common common
;
1284 location_t location
;
1287 struct GTY (()) tree_argument_pack_select
{
1288 struct tree_common common
;
1293 /* The different kinds of traits that we encounter. */
1299 CPTK_HAS_NOTHROW_ASSIGN
,
1300 CPTK_HAS_NOTHROW_CONSTRUCTOR
,
1301 CPTK_HAS_NOTHROW_COPY
,
1302 CPTK_HAS_TRIVIAL_ASSIGN
,
1303 CPTK_HAS_TRIVIAL_CONSTRUCTOR
,
1304 CPTK_HAS_TRIVIAL_COPY
,
1305 CPTK_HAS_TRIVIAL_DESTRUCTOR
,
1306 CPTK_HAS_UNIQUE_OBJ_REPRESENTATIONS
,
1307 CPTK_HAS_VIRTUAL_DESTRUCTOR
,
1315 CPTK_IS_LITERAL_TYPE
,
1317 CPTK_IS_POLYMORPHIC
,
1321 CPTK_IS_TRIVIALLY_ASSIGNABLE
,
1322 CPTK_IS_TRIVIALLY_CONSTRUCTIBLE
,
1323 CPTK_IS_TRIVIALLY_COPYABLE
,
1325 CPTK_UNDERLYING_TYPE
,
1327 CPTK_IS_CONSTRUCTIBLE
1330 /* The types that we are processing. */
1331 #define TRAIT_EXPR_TYPE1(NODE) \
1332 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type1)
1334 #define TRAIT_EXPR_TYPE2(NODE) \
1335 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type2)
1337 /* The specific trait that we are processing. */
1338 #define TRAIT_EXPR_KIND(NODE) \
1339 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->kind)
1341 #define TRAIT_EXPR_LOCATION(NODE) \
1342 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->locus)
1344 struct GTY (()) tree_trait_expr
{
1345 struct tree_common common
;
1349 enum cp_trait_kind kind
;
1352 /* Identifiers used for lambda types are almost anonymous. Use this
1353 spare flag to distinguish them (they also have the anonymous flag). */
1354 #define IDENTIFIER_LAMBDA_P(NODE) \
1355 (IDENTIFIER_NODE_CHECK(NODE)->base.protected_flag)
1357 /* Based off of TYPE_UNNAMED_P. */
1358 #define LAMBDA_TYPE_P(NODE) \
1359 (TREE_CODE (NODE) == RECORD_TYPE \
1360 && TYPE_LINKAGE_IDENTIFIER (NODE) \
1361 && IDENTIFIER_LAMBDA_P (TYPE_LINKAGE_IDENTIFIER (NODE)))
1363 /* Test if FUNCTION_DECL is a lambda function. */
1364 #define LAMBDA_FUNCTION_P(FNDECL) \
1365 (DECL_DECLARES_FUNCTION_P (FNDECL) \
1366 && DECL_OVERLOADED_OPERATOR_P (FNDECL) \
1367 && DECL_OVERLOADED_OPERATOR_IS (FNDECL, CALL_EXPR) \
1368 && LAMBDA_TYPE_P (CP_DECL_CONTEXT (FNDECL)))
1370 enum cp_lambda_default_capture_mode_type
{
1376 /* The method of default capture, if any. */
1377 #define LAMBDA_EXPR_DEFAULT_CAPTURE_MODE(NODE) \
1378 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->default_capture_mode)
1380 /* The capture-list, including `this'. Each capture is stored as a FIELD_DECL
1381 * so that the name, type, and field are all together, whether or not it has
1382 * been added to the lambda's class type.
1384 TREE_PURPOSE: The FIELD_DECL for this capture.
1385 TREE_VALUE: The initializer. This is part of a GNU extension. */
1386 #define LAMBDA_EXPR_CAPTURE_LIST(NODE) \
1387 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->capture_list)
1389 /* During parsing of the lambda-introducer, the node in the capture-list
1390 that holds the 'this' capture. During parsing of the body, the
1391 capture proxy for that node. */
1392 #define LAMBDA_EXPR_THIS_CAPTURE(NODE) \
1393 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->this_capture)
1395 /* Predicate tracking whether `this' is in the effective capture set. */
1396 #define LAMBDA_EXPR_CAPTURES_THIS_P(NODE) \
1397 LAMBDA_EXPR_THIS_CAPTURE(NODE)
1399 /* Predicate tracking whether the lambda was declared 'mutable'. */
1400 #define LAMBDA_EXPR_MUTABLE_P(NODE) \
1401 TREE_LANG_FLAG_1 (LAMBDA_EXPR_CHECK (NODE))
1403 /* True iff uses of a const variable capture were optimized away. */
1404 #define LAMBDA_EXPR_CAPTURE_OPTIMIZED(NODE) \
1405 TREE_LANG_FLAG_2 (LAMBDA_EXPR_CHECK (NODE))
1407 /* True iff this LAMBDA_EXPR was generated in tsubst_lambda_expr. */
1408 #define LAMBDA_EXPR_INSTANTIATED(NODE) \
1409 TREE_LANG_FLAG_3 (LAMBDA_EXPR_CHECK (NODE))
1411 /* True if this TREE_LIST in LAMBDA_EXPR_CAPTURE_LIST is for an explicit
1413 #define LAMBDA_CAPTURE_EXPLICIT_P(NODE) \
1414 TREE_LANG_FLAG_0 (TREE_LIST_CHECK (NODE))
1416 /* The source location of the lambda. */
1417 #define LAMBDA_EXPR_LOCATION(NODE) \
1418 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->locus)
1420 /* The mangling scope for the lambda: FUNCTION_DECL, PARM_DECL, VAR_DECL,
1421 FIELD_DECL or NULL_TREE. If this is NULL_TREE, we have no linkage. */
1422 #define LAMBDA_EXPR_EXTRA_SCOPE(NODE) \
1423 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->extra_scope)
1425 /* If EXTRA_SCOPE, this is the number of the lambda within that scope. */
1426 #define LAMBDA_EXPR_DISCRIMINATOR(NODE) \
1427 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->discriminator)
1429 /* During parsing of the lambda, a vector of capture proxies which need
1430 to be pushed once we're done processing a nested lambda. */
1431 #define LAMBDA_EXPR_PENDING_PROXIES(NODE) \
1432 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->pending_proxies)
1434 /* The closure type of the lambda, which is also the type of the
1436 #define LAMBDA_EXPR_CLOSURE(NODE) \
1437 (TREE_TYPE (LAMBDA_EXPR_CHECK (NODE)))
1439 struct GTY (()) tree_lambda_expr
1441 struct tree_typed typed
;
1445 vec
<tree
, va_gc
> *pending_proxies
;
1447 enum cp_lambda_default_capture_mode_type default_capture_mode
: 8;
1448 short int discriminator
;
1451 /* Non-zero if this template specialization has access violations that
1452 should be rechecked when the function is instantiated outside argument
1454 #define TINFO_HAS_ACCESS_ERRORS(NODE) \
1455 (TREE_LANG_FLAG_0 (TEMPLATE_INFO_CHECK (NODE)))
1456 #define FNDECL_HAS_ACCESS_ERRORS(NODE) \
1457 (TINFO_HAS_ACCESS_ERRORS (DECL_TEMPLATE_INFO (NODE)))
1459 /* Non-zero if this variable template specialization was specified using a
1460 template-id, so it's a partial or full specialization and not a definition
1461 of the member template of a particular class specialization. */
1462 #define TINFO_USED_TEMPLATE_ID(NODE) \
1463 (TREE_LANG_FLAG_1 (TEMPLATE_INFO_CHECK (NODE)))
1465 /* The representation of a deferred access check. */
1467 struct GTY(()) deferred_access_check
{
1468 /* The base class in which the declaration is referenced. */
1470 /* The declaration whose access must be checked. */
1472 /* The declaration that should be used in the error message. */
1474 /* The location of this access. */
1478 struct GTY(()) tree_template_info
{
1479 struct tree_base base
;
1482 vec
<deferred_access_check
, va_gc
> *deferred_access_checks
;
1485 // Constraint information for a C++ declaration. Constraint information is
1488 // - a constraint expression introduced by the template header
1489 // - a constraint expression introduced by a function declarator
1490 // - the associated constraints, which are the conjunction of those,
1491 // and used for declaration matching
1493 // The template and declarator requirements are kept to support pretty
1494 // printing constrained declarations.
1495 struct GTY(()) tree_constraint_info
{
1496 struct tree_base base
;
1498 tree declarator_reqs
;
1499 tree associated_constr
;
1502 // Require that pointer P is non-null before returning.
1503 template<typename T
>
1505 check_nonnull (T
* p
)
1511 /* Returns true iff T is non-null and represents constraint info. */
1512 inline tree_constraint_info
*
1513 check_constraint_info (tree t
)
1515 if (t
&& TREE_CODE (t
) == CONSTRAINT_INFO
)
1516 return (tree_constraint_info
*)t
;
1520 /* Access the expression describing the template constraints. This may be
1521 null if no constraints were introduced in the template parameter list,
1522 a requirements clause after the template parameter list, or constraints
1523 through a constrained-type-specifier. */
1524 #define CI_TEMPLATE_REQS(NODE) \
1525 check_constraint_info (check_nonnull (NODE))->template_reqs
1527 /* Access the expression describing the trailing constraints. This is non-null
1528 for any implicit instantiation of a constrained declaration. For a
1529 templated declaration it is non-null only when a trailing requires-clause
1531 #define CI_DECLARATOR_REQS(NODE) \
1532 check_constraint_info (check_nonnull (NODE))->declarator_reqs
1534 /* The computed associated constraint expression for a declaration. */
1535 #define CI_ASSOCIATED_CONSTRAINTS(NODE) \
1536 check_constraint_info (check_nonnull (NODE))->associated_constr
1538 /* Access the constraint-expression introduced by the requires-clause
1539 associate the template parameter list NODE. */
1540 #define TEMPLATE_PARMS_CONSTRAINTS(NODE) \
1541 TREE_TYPE (TREE_LIST_CHECK (NODE))
1543 /* Access the logical constraints on the template parameter declaration
1544 indicated by NODE. */
1545 #define TEMPLATE_PARM_CONSTRAINTS(NODE) \
1546 TREE_TYPE (TREE_LIST_CHECK (NODE))
1548 /* Non-zero if the noexcept is present in a compound requirement. */
1549 #define COMPOUND_REQ_NOEXCEPT_P(NODE) \
1550 TREE_LANG_FLAG_0 (TREE_CHECK (NODE, COMPOUND_REQ))
1552 /* The constraints on an 'auto' placeholder type, used in an argument deduction
1554 #define PLACEHOLDER_TYPE_CONSTRAINTS(NODE) \
1555 DECL_SIZE_UNIT (TYPE_NAME (NODE))
1557 /* True if NODE is a constraint. */
1558 #define CONSTR_P(NODE) \
1559 (TREE_CODE (NODE) == ATOMIC_CONSTR \
1560 || TREE_CODE (NODE) == CONJ_CONSTR \
1561 || TREE_CODE (NODE) == DISJ_CONSTR)
1563 /* Valid for any normalized constraint. */
1564 #define CONSTR_CHECK(NODE) \
1565 TREE_CHECK3 (NODE, ATOMIC_CONSTR, CONJ_CONSTR, DISJ_CONSTR)
1567 /* The CONSTR_INFO stores normalization data for a constraint. It refers to
1568 the original expression and the expression or declaration
1569 from which the constraint was normalized.
1571 This is TREE_LIST whose TREE_PURPOSE is the original expression and whose
1572 TREE_VALUE is a list of contexts. */
1573 #define CONSTR_INFO(NODE) \
1574 TREE_TYPE (CONSTR_CHECK (NODE))
1576 /* The expression evaluated by the constraint. */
1577 #define CONSTR_EXPR(NODE) \
1578 TREE_PURPOSE (CONSTR_INFO (NODE))
1580 /* The expression or declaration from which this constraint was normalized.
1581 This is a TREE_LIST whose TREE_VALUE is either a template-id expression
1582 denoting a concept check or the declaration introducing the constraint.
1583 These are chained to other context objects. */
1584 #define CONSTR_CONTEXT(NODE) \
1585 TREE_VALUE (CONSTR_INFO (NODE))
1587 /* The parameter mapping for an atomic constraint. */
1588 #define ATOMIC_CONSTR_MAP(NODE) \
1589 TREE_OPERAND (TREE_CHECK (NODE, ATOMIC_CONSTR), 0)
1591 /* The expression of an atomic constraint. */
1592 #define ATOMIC_CONSTR_EXPR(NODE) \
1593 CONSTR_EXPR (ATOMIC_CONSTR_CHECK (NODE))
1595 /* The concept of a concept check. */
1596 #define CHECK_CONSTR_CONCEPT(NODE) \
1597 TREE_OPERAND (TREE_CHECK (NODE, CHECK_CONSTR), 0)
1599 /* The template arguments of a concept check. */
1600 #define CHECK_CONSTR_ARGS(NODE) \
1601 TREE_OPERAND (TREE_CHECK (NODE, CHECK_CONSTR), 1)
1603 /* Whether a PARM_DECL represents a local parameter in a
1604 requires-expression. */
1605 #define CONSTRAINT_VAR_P(NODE) \
1606 DECL_LANG_FLAG_2 (TREE_CHECK (NODE, PARM_DECL))
1608 /* The concept constraining this constrained template-parameter. */
1609 #define CONSTRAINED_PARM_CONCEPT(NODE) \
1610 DECL_SIZE_UNIT (TYPE_DECL_CHECK (NODE))
1611 /* Any extra template arguments specified for a constrained
1612 template-parameter. */
1613 #define CONSTRAINED_PARM_EXTRA_ARGS(NODE) \
1614 DECL_SIZE (TYPE_DECL_CHECK (NODE))
1615 /* The first template parameter of CONSTRAINED_PARM_CONCEPT to be used as a
1616 prototype for the constrained parameter in finish_shorthand_constraint,
1617 attached for convenience. */
1618 #define CONSTRAINED_PARM_PROTOTYPE(NODE) \
1619 DECL_INITIAL (TYPE_DECL_CHECK (NODE))
1621 /* The list of local parameters introduced by this requires-expression,
1622 in the form of a chain of PARM_DECLs. */
1623 #define REQUIRES_EXPR_PARMS(NODE) \
1624 TREE_OPERAND (TREE_CHECK (NODE, REQUIRES_EXPR), 0)
1626 /* A TREE_LIST of the requirements for this requires-expression.
1627 The requirements are stored in lexical order within the TREE_VALUE
1628 of each TREE_LIST node. The TREE_PURPOSE of each node is unused. */
1629 #define REQUIRES_EXPR_REQS(NODE) \
1630 TREE_OPERAND (TREE_CHECK (NODE, REQUIRES_EXPR), 1)
1632 /* Like PACK_EXPANSION_EXTRA_ARGS, for requires-expressions. */
1633 #define REQUIRES_EXPR_EXTRA_ARGS(NODE) \
1634 TREE_OPERAND (TREE_CHECK (NODE, REQUIRES_EXPR), 2)
1636 enum cp_tree_node_structure_enum
{
1643 TS_CP_TEMPLATE_DECL
,
1644 TS_CP_DEFERRED_PARSE
,
1645 TS_CP_DEFERRED_NOEXCEPT
,
1646 TS_CP_STATIC_ASSERT
,
1647 TS_CP_ARGUMENT_PACK_SELECT
,
1650 TS_CP_TEMPLATE_INFO
,
1651 TS_CP_CONSTRAINT_INFO
,
1652 TS_CP_USERDEF_LITERAL
1655 /* The resulting tree type. */
1656 union GTY((desc ("cp_tree_node_structure (&%h)"),
1657 chain_next ("(union lang_tree_node *) c_tree_chain_next (&%h.generic)"))) lang_tree_node
{
1658 union tree_node
GTY ((tag ("TS_CP_GENERIC"),
1659 desc ("tree_node_structure (&%h)"))) generic
;
1660 struct template_parm_index
GTY ((tag ("TS_CP_TPI"))) tpi
;
1661 struct ptrmem_cst
GTY ((tag ("TS_CP_PTRMEM"))) ptrmem
;
1662 struct tree_overload
GTY ((tag ("TS_CP_OVERLOAD"))) overload
;
1663 struct tree_baselink
GTY ((tag ("TS_CP_BASELINK"))) baselink
;
1664 struct tree_template_decl
GTY ((tag ("TS_CP_TEMPLATE_DECL"))) template_decl
;
1665 struct tree_deferred_parse
GTY ((tag ("TS_CP_DEFERRED_PARSE"))) deferred_parse
;
1666 struct tree_deferred_noexcept
GTY ((tag ("TS_CP_DEFERRED_NOEXCEPT"))) deferred_noexcept
;
1667 struct lang_identifier
GTY ((tag ("TS_CP_IDENTIFIER"))) identifier
;
1668 struct tree_static_assert
GTY ((tag ("TS_CP_STATIC_ASSERT")))
1670 struct tree_argument_pack_select
GTY ((tag ("TS_CP_ARGUMENT_PACK_SELECT")))
1671 argument_pack_select
;
1672 struct tree_trait_expr
GTY ((tag ("TS_CP_TRAIT_EXPR")))
1674 struct tree_lambda_expr
GTY ((tag ("TS_CP_LAMBDA_EXPR")))
1676 struct tree_template_info
GTY ((tag ("TS_CP_TEMPLATE_INFO")))
1678 struct tree_constraint_info
GTY ((tag ("TS_CP_CONSTRAINT_INFO")))
1680 struct tree_userdef_literal
GTY ((tag ("TS_CP_USERDEF_LITERAL")))
1687 struct GTY(()) saved_scope
{
1688 vec
<cxx_saved_binding
, va_gc
> *old_bindings
;
1690 vec
<tree
, va_gc
> *decl_ns_list
;
1693 tree access_specifier
;
1695 vec
<tree
, va_gc
> *lang_base
;
1697 tree template_parms
;
1698 cp_binding_level
*x_previous_class_level
;
1701 /* Only used for uses of this in trailing return type. */
1702 tree x_current_class_ptr
;
1703 tree x_current_class_ref
;
1705 int x_processing_template_decl
;
1706 int x_processing_specialization
;
1707 int x_processing_constraint
;
1708 int suppress_location_wrappers
;
1709 BOOL_BITFIELD x_processing_explicit_instantiation
: 1;
1710 BOOL_BITFIELD need_pop_function_context
: 1;
1712 /* Nonzero if we are parsing the discarded statement of a constexpr
1714 BOOL_BITFIELD discarded_stmt
: 1;
1716 int unevaluated_operand
;
1717 int inhibit_evaluation_warnings
;
1718 int noexcept_operand
;
1719 /* If non-zero, implicit "omp declare target" attribute is added into the
1721 int omp_declare_target_attribute
;
1724 struct stmt_tree_s x_stmt_tree
;
1726 cp_binding_level
*class_bindings
;
1727 cp_binding_level
*bindings
;
1729 hash_map
<tree
, tree
> *GTY((skip
)) x_local_specializations
;
1731 struct saved_scope
*prev
;
1734 extern GTY(()) struct saved_scope
*scope_chain
;
1736 /* The current open namespace. */
1738 #define current_namespace scope_chain->old_namespace
1740 /* The stack for namespaces of current declarations. */
1742 #define decl_namespace_list scope_chain->decl_ns_list
1744 /* IDENTIFIER_NODE: name of current class */
1746 #define current_class_name scope_chain->class_name
1748 /* _TYPE: the type of the current class */
1750 #define current_class_type scope_chain->class_type
1752 /* When parsing a class definition, the access specifier most recently
1753 given by the user, or, if no access specifier was given, the
1754 default value appropriate for the kind of class (i.e., struct,
1755 class, or union). */
1757 #define current_access_specifier scope_chain->access_specifier
1759 /* Pointer to the top of the language name stack. */
1761 #define current_lang_base scope_chain->lang_base
1762 #define current_lang_name scope_chain->lang_name
1764 /* When parsing a template declaration, a TREE_LIST represents the
1765 active template parameters. Each node in the list represents one
1766 level of template parameters. The innermost level is first in the
1767 list. The depth of each level is stored as an INTEGER_CST in the
1768 TREE_PURPOSE of each node. The parameters for that level are
1769 stored in the TREE_VALUE. */
1771 #define current_template_parms scope_chain->template_parms
1773 #define processing_template_decl scope_chain->x_processing_template_decl
1774 #define processing_specialization scope_chain->x_processing_specialization
1775 #define processing_explicit_instantiation scope_chain->x_processing_explicit_instantiation
1777 #define in_discarded_stmt scope_chain->discarded_stmt
1779 #define current_ref_temp_count scope_chain->ref_temp_count
1781 /* RAII sentinel to handle clearing processing_template_decl and restoring
1784 class processing_template_decl_sentinel
1788 processing_template_decl_sentinel (bool reset
= true)
1789 : saved (processing_template_decl
)
1792 processing_template_decl
= 0;
1794 ~processing_template_decl_sentinel()
1796 processing_template_decl
= saved
;
1800 /* RAII sentinel to disable certain warnings during template substitution
1803 class warning_sentinel
1808 warning_sentinel(int& flag
, bool suppress
=true)
1809 : flag(flag
), val(flag
) { if (suppress
) flag
= 0; }
1810 ~warning_sentinel() { flag
= val
; }
1813 /* RAII sentinel to temporarily override input_location. This will not set
1814 input_location to UNKNOWN_LOCATION or BUILTINS_LOCATION. */
1818 location_t saved_loc
;
1820 iloc_sentinel (location_t loc
): saved_loc (input_location
)
1822 if (loc
>= RESERVED_LOCATION_COUNT
)
1823 input_location
= loc
;
1827 input_location
= saved_loc
;
1831 /* RAII sentinel that saves the value of a variable, optionally
1832 overrides it right away, and restores its value when the sentinel
1835 template <typename T
>
1838 T
& overridden_variable
;
1841 temp_override(T
& var
) : overridden_variable (var
), saved_value (var
) {}
1842 temp_override(T
& var
, T overrider
)
1843 : overridden_variable (var
), saved_value (var
)
1845 overridden_variable
= overrider
;
1847 ~temp_override() { overridden_variable
= saved_value
; }
1850 /* The cached class binding level, from the most recently exited
1851 class, or NULL if none. */
1853 #define previous_class_level scope_chain->x_previous_class_level
1855 /* A map from local variable declarations in the body of the template
1856 presently being instantiated to the corresponding instantiated
1859 #define local_specializations scope_chain->x_local_specializations
1861 /* Nonzero if we are parsing the operand of a noexcept operator. */
1863 #define cp_noexcept_operand scope_chain->noexcept_operand
1865 /* A list of private types mentioned, for deferred access checking. */
1867 struct GTY((for_user
)) cxx_int_tree_map
{
1872 struct cxx_int_tree_map_hasher
: ggc_ptr_hash
<cxx_int_tree_map
>
1874 static hashval_t
hash (cxx_int_tree_map
*);
1875 static bool equal (cxx_int_tree_map
*, cxx_int_tree_map
*);
1878 struct named_label_entry
; /* Defined in decl.c. */
1880 struct named_label_hash
: ggc_remove
<named_label_entry
*>
1882 typedef named_label_entry
*value_type
;
1883 typedef tree compare_type
; /* An identifier. */
1885 inline static hashval_t
hash (value_type
);
1886 inline static bool equal (const value_type
, compare_type
);
1888 static const bool empty_zero_p
= true;
1889 inline static void mark_empty (value_type
&p
) {p
= NULL
;}
1890 inline static bool is_empty (value_type p
) {return !p
;}
1892 /* Nothing is deletable. Everything is insertable. */
1893 inline static bool is_deleted (value_type
) { return false; }
1894 inline static void mark_deleted (value_type
) { gcc_unreachable (); }
1897 /* Global state pertinent to the current function. */
1899 struct GTY(()) language_function
{
1900 struct c_language_function base
;
1903 tree x_current_class_ptr
;
1904 tree x_current_class_ref
;
1905 tree x_eh_spec_block
;
1906 tree x_in_charge_parm
;
1908 tree x_return_value
;
1910 BOOL_BITFIELD returns_value
: 1;
1911 BOOL_BITFIELD returns_null
: 1;
1912 BOOL_BITFIELD returns_abnormally
: 1;
1913 BOOL_BITFIELD infinite_loop
: 1;
1914 BOOL_BITFIELD x_in_function_try_handler
: 1;
1915 BOOL_BITFIELD x_in_base_initializer
: 1;
1917 /* True if this function can throw an exception. */
1918 BOOL_BITFIELD can_throw
: 1;
1920 BOOL_BITFIELD invalid_constexpr
: 1;
1921 BOOL_BITFIELD throwing_cleanup
: 1;
1923 hash_table
<named_label_hash
> *x_named_labels
;
1925 cp_binding_level
*bindings
;
1927 /* Tracking possibly infinite loops. This is a vec<tree> only because
1928 vec<bool> doesn't work with gtype. */
1929 vec
<tree
, va_gc
> *infinite_loops
;
1930 hash_table
<cxx_int_tree_map_hasher
> *extern_decl_map
;
1933 /* The current C++-specific per-function global variables. */
1935 #define cp_function_chain (cfun->language)
1937 /* In a constructor destructor, the point at which all derived class
1938 destroying/construction has been done. I.e., just before a
1939 constructor returns, or before any base class destroying will be done
1942 #define cdtor_label cp_function_chain->x_cdtor_label
1944 /* When we're processing a member function, current_class_ptr is the
1945 PARM_DECL for the `this' pointer. The current_class_ref is an
1946 expression for `*this'. */
1948 #define current_class_ptr \
1949 (*(cfun && cp_function_chain \
1950 ? &cp_function_chain->x_current_class_ptr \
1951 : &scope_chain->x_current_class_ptr))
1952 #define current_class_ref \
1953 (*(cfun && cp_function_chain \
1954 ? &cp_function_chain->x_current_class_ref \
1955 : &scope_chain->x_current_class_ref))
1957 /* The EH_SPEC_BLOCK for the exception-specifiers for the current
1958 function, if any. */
1960 #define current_eh_spec_block cp_function_chain->x_eh_spec_block
1962 /* The `__in_chrg' parameter for the current function. Only used for
1963 constructors and destructors. */
1965 #define current_in_charge_parm cp_function_chain->x_in_charge_parm
1967 /* The `__vtt_parm' parameter for the current function. Only used for
1968 constructors and destructors. */
1970 #define current_vtt_parm cp_function_chain->x_vtt_parm
1972 /* A boolean flag to control whether we need to clean up the return value if a
1973 local destructor throws. Only used in functions that return by value a
1974 class with a destructor. Which 'tors don't, so we can use the same
1975 field as current_vtt_parm. */
1977 #define current_retval_sentinel current_vtt_parm
1979 /* Set to 0 at beginning of a function definition, set to 1 if
1980 a return statement that specifies a return value is seen. */
1982 #define current_function_returns_value cp_function_chain->returns_value
1984 /* Set to 0 at beginning of a function definition, set to 1 if
1985 a return statement with no argument is seen. */
1987 #define current_function_returns_null cp_function_chain->returns_null
1989 /* Set to 0 at beginning of a function definition, set to 1 if
1990 a call to a noreturn function is seen. */
1992 #define current_function_returns_abnormally \
1993 cp_function_chain->returns_abnormally
1995 /* Set to 0 at beginning of a function definition, set to 1 if we see an
1996 obvious infinite loop. This can have false positives and false
1997 negatives, so it should only be used as a heuristic. */
1999 #define current_function_infinite_loop cp_function_chain->infinite_loop
2001 /* Nonzero if we are processing a base initializer. Zero elsewhere. */
2002 #define in_base_initializer cp_function_chain->x_in_base_initializer
2004 #define in_function_try_handler cp_function_chain->x_in_function_try_handler
2006 /* Expression always returned from function, or error_mark_node
2007 otherwise, for use by the automatic named return value optimization. */
2009 #define current_function_return_value \
2010 (cp_function_chain->x_return_value)
2013 extern tree
cp_literal_operator_id (const char *);
2015 #define NON_ERROR(NODE) ((NODE) == error_mark_node ? NULL_TREE : (NODE))
2017 /* TRUE if a tree code represents a statement. */
2018 extern bool statement_code_p
[MAX_TREE_CODES
];
2020 #define STATEMENT_CODE_P(CODE) statement_code_p[(int) (CODE)]
2022 enum languages
{ lang_c
, lang_cplusplus
};
2024 /* Macros to make error reporting functions' lives easier. */
2025 #define TYPE_LINKAGE_IDENTIFIER(NODE) \
2026 (TYPE_IDENTIFIER (TYPE_MAIN_VARIANT (NODE)))
2027 #define TYPE_NAME_STRING(NODE) (IDENTIFIER_POINTER (TYPE_IDENTIFIER (NODE)))
2028 #define TYPE_NAME_LENGTH(NODE) (IDENTIFIER_LENGTH (TYPE_IDENTIFIER (NODE)))
2030 /* Any kind of anonymous type. */
2031 #define TYPE_ANON_P(NODE) \
2032 (TYPE_LINKAGE_IDENTIFIER (NODE) \
2033 && IDENTIFIER_ANON_P (TYPE_LINKAGE_IDENTIFIER (NODE)))
2035 /* Nonzero if NODE, a TYPE, has no name for linkage purposes. */
2036 #define TYPE_UNNAMED_P(NODE) \
2037 (TYPE_ANON_P (NODE) \
2038 && !IDENTIFIER_LAMBDA_P (TYPE_LINKAGE_IDENTIFIER (NODE)))
2040 /* The _DECL for this _TYPE. */
2041 #define TYPE_MAIN_DECL(NODE) (TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE)))
2043 /* Nonzero if T is a type that could resolve to any kind of concrete type
2044 at instantiation time. */
2045 #define WILDCARD_TYPE_P(T) \
2046 (TREE_CODE (T) == TEMPLATE_TYPE_PARM \
2047 || TREE_CODE (T) == TYPENAME_TYPE \
2048 || TREE_CODE (T) == TYPEOF_TYPE \
2049 || TREE_CODE (T) == BOUND_TEMPLATE_TEMPLATE_PARM \
2050 || TREE_CODE (T) == DECLTYPE_TYPE)
2052 /* Nonzero if T is a class (or struct or union) type. Also nonzero
2053 for template type parameters, typename types, and instantiated
2054 template template parameters. Keep these checks in ascending code
2056 #define MAYBE_CLASS_TYPE_P(T) (WILDCARD_TYPE_P (T) || CLASS_TYPE_P (T))
2058 /* Set CLASS_TYPE_P for T to VAL. T must be a class, struct, or
2060 #define SET_CLASS_TYPE_P(T, VAL) \
2061 (TYPE_LANG_FLAG_5 (RECORD_OR_UNION_CHECK (T)) = (VAL))
2063 /* Nonzero if T is a class type. Zero for template type parameters,
2064 typename types, and so forth. */
2065 #define CLASS_TYPE_P(T) \
2066 (RECORD_OR_UNION_CODE_P (TREE_CODE (T)) && TYPE_LANG_FLAG_5 (T))
2068 /* Nonzero if T is a class type but not an union. */
2069 #define NON_UNION_CLASS_TYPE_P(T) \
2070 (TREE_CODE (T) == RECORD_TYPE && TYPE_LANG_FLAG_5 (T))
2072 /* Keep these checks in ascending code order. */
2073 #define RECORD_OR_UNION_CODE_P(T) \
2074 ((T) == RECORD_TYPE || (T) == UNION_TYPE)
2075 #define OVERLOAD_TYPE_P(T) \
2076 (CLASS_TYPE_P (T) || TREE_CODE (T) == ENUMERAL_TYPE)
2078 /* True if this type is dependent. This predicate is only valid if
2079 TYPE_DEPENDENT_P_VALID is true. */
2080 #define TYPE_DEPENDENT_P(NODE) TYPE_LANG_FLAG_0 (NODE)
2082 /* True if dependent_type_p has been called for this type, with the
2083 result that TYPE_DEPENDENT_P is valid. */
2084 #define TYPE_DEPENDENT_P_VALID(NODE) TYPE_LANG_FLAG_6(NODE)
2086 /* Nonzero if this type is const-qualified. */
2087 #define CP_TYPE_CONST_P(NODE) \
2088 ((cp_type_quals (NODE) & TYPE_QUAL_CONST) != 0)
2090 /* Nonzero if this type is volatile-qualified. */
2091 #define CP_TYPE_VOLATILE_P(NODE) \
2092 ((cp_type_quals (NODE) & TYPE_QUAL_VOLATILE) != 0)
2094 /* Nonzero if this type is restrict-qualified. */
2095 #define CP_TYPE_RESTRICT_P(NODE) \
2096 ((cp_type_quals (NODE) & TYPE_QUAL_RESTRICT) != 0)
2098 /* Nonzero if this type is const-qualified, but not
2099 volatile-qualified. Other qualifiers are ignored. This macro is
2100 used to test whether or not it is OK to bind an rvalue to a
2102 #define CP_TYPE_CONST_NON_VOLATILE_P(NODE) \
2103 ((cp_type_quals (NODE) & (TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE)) \
2106 #define FUNCTION_ARG_CHAIN(NODE) \
2107 TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (NODE)))
2109 /* Given a FUNCTION_DECL, returns the first TREE_LIST out of TYPE_ARG_TYPES
2110 which refers to a user-written parameter. */
2111 #define FUNCTION_FIRST_USER_PARMTYPE(NODE) \
2112 skip_artificial_parms_for ((NODE), TYPE_ARG_TYPES (TREE_TYPE (NODE)))
2114 /* Similarly, but for DECL_ARGUMENTS. */
2115 #define FUNCTION_FIRST_USER_PARM(NODE) \
2116 skip_artificial_parms_for ((NODE), DECL_ARGUMENTS (NODE))
2118 /* Nonzero iff TYPE is derived from PARENT. Ignores accessibility and
2119 ambiguity issues. */
2120 #define DERIVED_FROM_P(PARENT, TYPE) \
2121 (lookup_base ((TYPE), (PARENT), ba_any, NULL, tf_none) != NULL_TREE)
2123 /* Gives the visibility specification for a class type. */
2124 #define CLASSTYPE_VISIBILITY(TYPE) \
2125 DECL_VISIBILITY (TYPE_MAIN_DECL (TYPE))
2126 #define CLASSTYPE_VISIBILITY_SPECIFIED(TYPE) \
2127 DECL_VISIBILITY_SPECIFIED (TYPE_MAIN_DECL (TYPE))
2129 struct GTY (()) tree_pair_s
{
2133 typedef tree_pair_s
*tree_pair_p
;
2135 /* This structure provides additional information above and beyond
2136 what is provide in the ordinary tree_type. In the past, we used it
2137 for the types of class types, template parameters types, typename
2138 types, and so forth. However, there can be many (tens to hundreds
2139 of thousands) of template parameter types in a compilation, and
2140 there's no need for this additional information in that case.
2141 Therefore, we now use this data structure only for class types.
2143 In the past, it was thought that there would be relatively few
2144 class types. However, in the presence of heavy use of templates,
2145 many (i.e., thousands) of classes can easily be generated.
2146 Therefore, we should endeavor to keep the size of this structure to
2148 struct GTY(()) lang_type
{
2149 unsigned char align
;
2151 unsigned has_type_conversion
: 1;
2152 unsigned has_copy_ctor
: 1;
2153 unsigned has_default_ctor
: 1;
2154 unsigned const_needs_init
: 1;
2155 unsigned ref_needs_init
: 1;
2156 unsigned has_const_copy_assign
: 1;
2157 unsigned use_template
: 2;
2159 unsigned has_mutable
: 1;
2160 unsigned com_interface
: 1;
2161 unsigned non_pod_class
: 1;
2162 unsigned nearly_empty_p
: 1;
2163 unsigned user_align
: 1;
2164 unsigned has_copy_assign
: 1;
2165 unsigned has_new
: 1;
2166 unsigned has_array_new
: 1;
2168 unsigned gets_delete
: 2;
2169 unsigned interface_only
: 1;
2170 unsigned interface_unknown
: 1;
2171 unsigned contains_empty_class_p
: 1;
2172 unsigned anon_aggr
: 1;
2173 unsigned non_zero_init
: 1;
2174 unsigned empty_p
: 1;
2175 /* 32 bits allocated. */
2177 unsigned vec_new_uses_cookie
: 1;
2178 unsigned declared_class
: 1;
2179 unsigned diamond_shaped
: 1;
2180 unsigned repeated_base
: 1;
2181 unsigned being_defined
: 1;
2182 unsigned debug_requested
: 1;
2183 unsigned fields_readonly
: 1;
2184 unsigned ptrmemfunc_flag
: 1;
2186 unsigned lazy_default_ctor
: 1;
2187 unsigned lazy_copy_ctor
: 1;
2188 unsigned lazy_copy_assign
: 1;
2189 unsigned lazy_destructor
: 1;
2190 unsigned has_const_copy_ctor
: 1;
2191 unsigned has_complex_copy_ctor
: 1;
2192 unsigned has_complex_copy_assign
: 1;
2193 unsigned non_aggregate
: 1;
2195 unsigned has_complex_dflt
: 1;
2196 unsigned has_list_ctor
: 1;
2197 unsigned non_std_layout
: 1;
2198 unsigned is_literal
: 1;
2199 unsigned lazy_move_ctor
: 1;
2200 unsigned lazy_move_assign
: 1;
2201 unsigned has_complex_move_ctor
: 1;
2202 unsigned has_complex_move_assign
: 1;
2204 unsigned has_constexpr_ctor
: 1;
2205 unsigned unique_obj_representations
: 1;
2206 unsigned unique_obj_representations_set
: 1;
2208 /* When adding a flag here, consider whether or not it ought to
2209 apply to a template instance if it applies to the template. If
2210 so, make sure to copy it in instantiate_class_template! */
2212 /* There are some bits left to fill out a 32-bit word. Keep track
2213 of this by updating the size of this bitfield whenever you add or
2218 vec
<tree_pair_s
, va_gc
> *vcall_indices
;
2221 vec
<tree
, va_gc
> *vbases
;
2222 binding_table nested_udts
;
2224 vec
<tree
, va_gc
> *pure_virtuals
;
2225 tree friend_classes
;
2226 vec
<tree
, va_gc
> * GTY((reorder ("resort_type_member_vec"))) members
;
2229 tree befriending_classes
;
2230 /* In a RECORD_TYPE, information specific to Objective-C++, such
2231 as a list of adopted protocols or a pointer to a corresponding
2232 @interface. See objc/objc-act.h for details. */
2234 /* FIXME reuse another field? */
2238 /* We used to have a variant type for lang_type. Keep the name of the
2239 checking accessor for the sole survivor. */
2240 #define LANG_TYPE_CLASS_CHECK(NODE) (TYPE_LANG_SPECIFIC (NODE))
2242 /* Nonzero for _CLASSTYPE means that operator delete is defined. */
2243 #define TYPE_GETS_DELETE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->gets_delete)
2244 #define TYPE_GETS_REG_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 1)
2246 /* Nonzero if `new NODE[x]' should cause the allocation of extra
2247 storage to indicate how many array elements are in use. */
2248 #define TYPE_VEC_NEW_USES_COOKIE(NODE) \
2249 (CLASS_TYPE_P (NODE) \
2250 && LANG_TYPE_CLASS_CHECK (NODE)->vec_new_uses_cookie)
2252 /* Nonzero means that this _CLASSTYPE node defines ways of converting
2253 itself to other types. */
2254 #define TYPE_HAS_CONVERSION(NODE) \
2255 (LANG_TYPE_CLASS_CHECK (NODE)->has_type_conversion)
2257 /* Nonzero means that NODE (a class type) has a default constructor --
2258 but that it has not yet been declared. */
2259 #define CLASSTYPE_LAZY_DEFAULT_CTOR(NODE) \
2260 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_default_ctor)
2262 /* Nonzero means that NODE (a class type) has a copy constructor --
2263 but that it has not yet been declared. */
2264 #define CLASSTYPE_LAZY_COPY_CTOR(NODE) \
2265 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_ctor)
2267 /* Nonzero means that NODE (a class type) has a move constructor --
2268 but that it has not yet been declared. */
2269 #define CLASSTYPE_LAZY_MOVE_CTOR(NODE) \
2270 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_move_ctor)
2272 /* Nonzero means that NODE (a class type) has an assignment operator
2273 -- but that it has not yet been declared. */
2274 #define CLASSTYPE_LAZY_COPY_ASSIGN(NODE) \
2275 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_assign)
2277 /* Nonzero means that NODE (a class type) has an assignment operator
2278 -- but that it has not yet been declared. */
2279 #define CLASSTYPE_LAZY_MOVE_ASSIGN(NODE) \
2280 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_move_assign)
2282 /* Nonzero means that NODE (a class type) has a destructor -- but that
2283 it has not yet been declared. */
2284 #define CLASSTYPE_LAZY_DESTRUCTOR(NODE) \
2285 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_destructor)
2287 /* Nonzero means that NODE (a class type) is final */
2288 #define CLASSTYPE_FINAL(NODE) \
2292 /* Nonzero means that this _CLASSTYPE node overloads operator=(X&). */
2293 #define TYPE_HAS_COPY_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_copy_assign)
2295 /* True iff the class type NODE has an "operator =" whose parameter
2296 has a parameter of type "const X&". */
2297 #define TYPE_HAS_CONST_COPY_ASSIGN(NODE) \
2298 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_copy_assign)
2300 /* Nonzero means that this _CLASSTYPE node has an X(X&) constructor. */
2301 #define TYPE_HAS_COPY_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_copy_ctor)
2302 #define TYPE_HAS_CONST_COPY_CTOR(NODE) \
2303 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_copy_ctor)
2305 /* Nonzero if this class has an X(initializer_list<T>) constructor. */
2306 #define TYPE_HAS_LIST_CTOR(NODE) \
2307 (LANG_TYPE_CLASS_CHECK (NODE)->has_list_ctor)
2309 /* Nonzero if this class has a constexpr constructor other than a copy/move
2310 constructor. Note that a class can have constexpr constructors for
2311 static initialization even if it isn't a literal class. */
2312 #define TYPE_HAS_CONSTEXPR_CTOR(NODE) \
2313 (LANG_TYPE_CLASS_CHECK (NODE)->has_constexpr_ctor)
2315 /* Nonzero if this class defines an overloaded operator new. (An
2316 operator new [] doesn't count.) */
2317 #define TYPE_HAS_NEW_OPERATOR(NODE) \
2318 (LANG_TYPE_CLASS_CHECK (NODE)->has_new)
2320 /* Nonzero if this class defines an overloaded operator new[]. */
2321 #define TYPE_HAS_ARRAY_NEW_OPERATOR(NODE) \
2322 (LANG_TYPE_CLASS_CHECK (NODE)->has_array_new)
2324 /* Nonzero means that this type is being defined. I.e., the left brace
2325 starting the definition of this type has been seen. */
2326 #define TYPE_BEING_DEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->being_defined)
2328 /* Nonzero means that this type is either complete or being defined, so we
2329 can do lookup in it. */
2330 #define COMPLETE_OR_OPEN_TYPE_P(NODE) \
2331 (COMPLETE_TYPE_P (NODE) || (CLASS_TYPE_P (NODE) && TYPE_BEING_DEFINED (NODE)))
2333 /* Mark bits for repeated base checks. */
2334 #define TYPE_MARKED_P(NODE) TREE_LANG_FLAG_6 (TYPE_CHECK (NODE))
2336 /* Nonzero if the class NODE has multiple paths to the same (virtual)
2338 #define CLASSTYPE_DIAMOND_SHAPED_P(NODE) \
2339 (LANG_TYPE_CLASS_CHECK(NODE)->diamond_shaped)
2341 /* Nonzero if the class NODE has multiple instances of the same base
2343 #define CLASSTYPE_REPEATED_BASE_P(NODE) \
2344 (LANG_TYPE_CLASS_CHECK(NODE)->repeated_base)
2346 /* The member function with which the vtable will be emitted:
2347 the first noninline non-pure-virtual member function. NULL_TREE
2348 if there is no key function or if this is a class template */
2349 #define CLASSTYPE_KEY_METHOD(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->key_method)
2351 /* Vector of members. During definition, it is unordered and only
2352 member functions are present. After completion it is sorted and
2353 contains both member functions and non-functions. STAT_HACK is
2354 involved to preserve oneslot per name invariant. */
2355 #define CLASSTYPE_MEMBER_VEC(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->members)
2357 /* For class templates, this is a TREE_LIST of all member data,
2358 functions, types, and friends in the order of declaration.
2359 The TREE_PURPOSE of each TREE_LIST is NULL_TREE for a friend,
2360 and the RECORD_TYPE for the class template otherwise. */
2361 #define CLASSTYPE_DECL_LIST(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->decl_list)
2363 /* A FUNCTION_DECL or OVERLOAD for the constructors for NODE. These
2364 are the constructors that take an in-charge parameter. */
2365 #define CLASSTYPE_CONSTRUCTORS(NODE) \
2366 (get_class_binding_direct (NODE, ctor_identifier))
2368 /* A FUNCTION_DECL for the destructor for NODE. This is the
2369 destructors that take an in-charge parameter. If
2370 CLASSTYPE_LAZY_DESTRUCTOR is true, then this entry will be NULL
2371 until the destructor is created with lazily_declare_fn. */
2372 #define CLASSTYPE_DESTRUCTOR(NODE) \
2373 (get_class_binding_direct (NODE, dtor_identifier))
2375 /* A dictionary of the nested user-defined-types (class-types, or enums)
2376 found within this class. This table includes nested member class
2378 #define CLASSTYPE_NESTED_UTDS(NODE) \
2379 (LANG_TYPE_CLASS_CHECK (NODE)->nested_udts)
2381 /* Nonzero if NODE has a primary base class, i.e., a base class with
2382 which it shares the virtual function table pointer. */
2383 #define CLASSTYPE_HAS_PRIMARY_BASE_P(NODE) \
2384 (CLASSTYPE_PRIMARY_BINFO (NODE) != NULL_TREE)
2386 /* If non-NULL, this is the binfo for the primary base class, i.e.,
2387 the base class which contains the virtual function table pointer
2389 #define CLASSTYPE_PRIMARY_BINFO(NODE) \
2390 (LANG_TYPE_CLASS_CHECK (NODE)->primary_base)
2392 /* A vector of BINFOs for the direct and indirect virtual base classes
2393 that this type uses in a post-order depth-first left-to-right
2394 order. (In other words, these bases appear in the order that they
2395 should be initialized.) */
2396 #define CLASSTYPE_VBASECLASSES(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->vbases)
2398 /* The type corresponding to NODE when NODE is used as a base class,
2399 i.e., NODE without virtual base classes or tail padding. */
2400 #define CLASSTYPE_AS_BASE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->as_base)
2402 /* True iff NODE is the CLASSTYPE_AS_BASE version of some type. */
2403 #define IS_FAKE_BASE_TYPE(NODE) \
2404 (TREE_CODE (NODE) == RECORD_TYPE \
2405 && TYPE_CONTEXT (NODE) && CLASS_TYPE_P (TYPE_CONTEXT (NODE)) \
2406 && CLASSTYPE_AS_BASE (TYPE_CONTEXT (NODE)) == (NODE))
2408 /* These are the size and alignment of the type without its virtual
2409 base classes, for when we use this type as a base itself. */
2410 #define CLASSTYPE_SIZE(NODE) TYPE_SIZE (CLASSTYPE_AS_BASE (NODE))
2411 #define CLASSTYPE_SIZE_UNIT(NODE) TYPE_SIZE_UNIT (CLASSTYPE_AS_BASE (NODE))
2412 #define CLASSTYPE_ALIGN(NODE) TYPE_ALIGN (CLASSTYPE_AS_BASE (NODE))
2413 #define CLASSTYPE_USER_ALIGN(NODE) TYPE_USER_ALIGN (CLASSTYPE_AS_BASE (NODE))
2415 /* The alignment of NODE, without its virtual bases, in bytes. */
2416 #define CLASSTYPE_ALIGN_UNIT(NODE) \
2417 (CLASSTYPE_ALIGN (NODE) / BITS_PER_UNIT)
2419 /* A vec<tree> of virtual functions which cannot be inherited by
2420 derived classes. When deriving from this type, the derived
2421 class must provide its own definition for each of these functions. */
2422 #define CLASSTYPE_PURE_VIRTUALS(NODE) \
2423 (LANG_TYPE_CLASS_CHECK (NODE)->pure_virtuals)
2425 /* Nonzero means that this type is an abstract class type. */
2426 #define ABSTRACT_CLASS_TYPE_P(NODE) \
2427 (CLASS_TYPE_P (NODE) && CLASSTYPE_PURE_VIRTUALS(NODE))
2429 /* Nonzero means that this type has an X() constructor. */
2430 #define TYPE_HAS_DEFAULT_CONSTRUCTOR(NODE) \
2431 (LANG_TYPE_CLASS_CHECK (NODE)->has_default_ctor)
2433 /* Nonzero means that this type contains a mutable member. */
2434 #define CLASSTYPE_HAS_MUTABLE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_mutable)
2435 #define TYPE_HAS_MUTABLE_P(NODE) (cp_has_mutable_p (NODE))
2437 /* Nonzero means that this class type is not POD for the purpose of layout
2438 (as defined in the ABI). This is different from the language's POD. */
2439 #define CLASSTYPE_NON_LAYOUT_POD_P(NODE) \
2440 (LANG_TYPE_CLASS_CHECK (NODE)->non_pod_class)
2442 /* Nonzero means that this class type is a non-standard-layout class. */
2443 #define CLASSTYPE_NON_STD_LAYOUT(NODE) \
2444 (LANG_TYPE_CLASS_CHECK (NODE)->non_std_layout)
2446 /* Nonzero means that this class type does have unique object
2448 #define CLASSTYPE_UNIQUE_OBJ_REPRESENTATIONS(NODE) \
2449 (LANG_TYPE_CLASS_CHECK (NODE)->unique_obj_representations)
2451 /* Nonzero means that this class type has
2452 CLASSTYPE_UNIQUE_OBJ_REPRESENTATIONS computed. */
2453 #define CLASSTYPE_UNIQUE_OBJ_REPRESENTATIONS_SET(NODE) \
2454 (LANG_TYPE_CLASS_CHECK (NODE)->unique_obj_representations_set)
2456 /* Nonzero means that this class contains pod types whose default
2457 initialization is not a zero initialization (namely, pointers to
2459 #define CLASSTYPE_NON_ZERO_INIT_P(NODE) \
2460 (LANG_TYPE_CLASS_CHECK (NODE)->non_zero_init)
2462 /* Nonzero if this class is "empty" in the sense of the C++ ABI. */
2463 #define CLASSTYPE_EMPTY_P(NODE) \
2464 (LANG_TYPE_CLASS_CHECK (NODE)->empty_p)
2466 /* Nonzero if this class is "nearly empty", i.e., contains only a
2467 virtual function table pointer. */
2468 #define CLASSTYPE_NEARLY_EMPTY_P(NODE) \
2469 (LANG_TYPE_CLASS_CHECK (NODE)->nearly_empty_p)
2471 /* Nonzero if this class contains an empty subobject. */
2472 #define CLASSTYPE_CONTAINS_EMPTY_CLASS_P(NODE) \
2473 (LANG_TYPE_CLASS_CHECK (NODE)->contains_empty_class_p)
2475 /* A list of class types of which this type is a friend. The
2476 TREE_VALUE is normally a TYPE, but will be a TEMPLATE_DECL in the
2477 case of a template friend. */
2478 #define CLASSTYPE_FRIEND_CLASSES(NODE) \
2479 (LANG_TYPE_CLASS_CHECK (NODE)->friend_classes)
2481 /* A list of the classes which grant friendship to this class. */
2482 #define CLASSTYPE_BEFRIENDING_CLASSES(NODE) \
2483 (LANG_TYPE_CLASS_CHECK (NODE)->befriending_classes)
2485 /* The associated LAMBDA_EXPR that made this class. */
2486 #define CLASSTYPE_LAMBDA_EXPR(NODE) \
2487 (LANG_TYPE_CLASS_CHECK (NODE)->lambda_expr)
2488 /* The extra mangling scope for this closure type. */
2489 #define LAMBDA_TYPE_EXTRA_SCOPE(NODE) \
2490 (LAMBDA_EXPR_EXTRA_SCOPE (CLASSTYPE_LAMBDA_EXPR (NODE)))
2492 /* Say whether this node was declared as a "class" or a "struct". */
2493 #define CLASSTYPE_DECLARED_CLASS(NODE) \
2494 (LANG_TYPE_CLASS_CHECK (NODE)->declared_class)
2496 /* Nonzero if this class has const members
2497 which have no specified initialization. */
2498 #define CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE) \
2499 (TYPE_LANG_SPECIFIC (NODE) \
2500 ? LANG_TYPE_CLASS_CHECK (NODE)->const_needs_init : 0)
2501 #define SET_CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE, VALUE) \
2502 (LANG_TYPE_CLASS_CHECK (NODE)->const_needs_init = (VALUE))
2504 /* Nonzero if this class has ref members
2505 which have no specified initialization. */
2506 #define CLASSTYPE_REF_FIELDS_NEED_INIT(NODE) \
2507 (TYPE_LANG_SPECIFIC (NODE) \
2508 ? LANG_TYPE_CLASS_CHECK (NODE)->ref_needs_init : 0)
2509 #define SET_CLASSTYPE_REF_FIELDS_NEED_INIT(NODE, VALUE) \
2510 (LANG_TYPE_CLASS_CHECK (NODE)->ref_needs_init = (VALUE))
2512 /* Nonzero if this class is included from a header file which employs
2513 `#pragma interface', and it is not included in its implementation file. */
2514 #define CLASSTYPE_INTERFACE_ONLY(NODE) \
2515 (LANG_TYPE_CLASS_CHECK (NODE)->interface_only)
2517 /* True if we have already determined whether or not vtables, VTTs,
2518 typeinfo, and other similar per-class data should be emitted in
2519 this translation unit. This flag does not indicate whether or not
2520 these items should be emitted; it only indicates that we know one
2521 way or the other. */
2522 #define CLASSTYPE_INTERFACE_KNOWN(NODE) \
2523 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown == 0)
2524 /* The opposite of CLASSTYPE_INTERFACE_KNOWN. */
2525 #define CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
2526 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown)
2528 #define SET_CLASSTYPE_INTERFACE_UNKNOWN_X(NODE,X) \
2529 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = !!(X))
2530 #define SET_CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
2531 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 1)
2532 #define SET_CLASSTYPE_INTERFACE_KNOWN(NODE) \
2533 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 0)
2535 /* Nonzero if a _DECL node requires us to output debug info for this class. */
2536 #define CLASSTYPE_DEBUG_REQUESTED(NODE) \
2537 (LANG_TYPE_CLASS_CHECK (NODE)->debug_requested)
2539 /* Additional macros for inheritance information. */
2541 /* Nonzero means that this class is on a path leading to a new vtable. */
2542 #define BINFO_VTABLE_PATH_MARKED(NODE) BINFO_FLAG_1 (NODE)
2544 /* Nonzero means B (a BINFO) has its own vtable. Any copies will not
2545 have this flag set. */
2546 #define BINFO_NEW_VTABLE_MARKED(B) (BINFO_FLAG_2 (B))
2548 /* Compare a BINFO_TYPE with another type for equality. For a binfo,
2549 this is functionally equivalent to using same_type_p, but
2550 measurably faster. At least one of the arguments must be a
2551 BINFO_TYPE. The other can be a BINFO_TYPE or a regular type. If
2552 BINFO_TYPE(T) ever stops being the main variant of the class the
2553 binfo is for, this macro must change. */
2554 #define SAME_BINFO_TYPE_P(A, B) ((A) == (B))
2556 /* Any subobject that needs a new vtable must have a vptr and must not
2557 be a non-virtual primary base (since it would then use the vtable from a
2558 derived class and never become non-primary.) */
2559 #define SET_BINFO_NEW_VTABLE_MARKED(B) \
2560 (BINFO_NEW_VTABLE_MARKED (B) = 1, \
2561 gcc_assert (!BINFO_PRIMARY_P (B) || BINFO_VIRTUAL_P (B)), \
2562 gcc_assert (TYPE_VFIELD (BINFO_TYPE (B))))
2564 /* Nonzero if this binfo is for a dependent base - one that should not
2566 #define BINFO_DEPENDENT_BASE_P(NODE) BINFO_FLAG_3 (NODE)
2568 /* Nonzero if this binfo has lost its primary base binfo (because that
2569 is a nearly-empty virtual base that has been taken by some other
2570 base in the complete hierarchy. */
2571 #define BINFO_LOST_PRIMARY_P(NODE) BINFO_FLAG_4 (NODE)
2573 /* Nonzero if this BINFO is a primary base class. */
2574 #define BINFO_PRIMARY_P(NODE) BINFO_FLAG_5(NODE)
2576 /* A vec<tree_pair_s> of the vcall indices associated with the class
2577 NODE. The PURPOSE of each element is a FUNCTION_DECL for a virtual
2578 function. The VALUE is the index into the virtual table where the
2579 vcall offset for that function is stored, when NODE is a virtual
2581 #define CLASSTYPE_VCALL_INDICES(NODE) \
2582 (LANG_TYPE_CLASS_CHECK (NODE)->vcall_indices)
2584 /* The various vtables for the class NODE. The primary vtable will be
2585 first, followed by the construction vtables and VTT, if any. */
2586 #define CLASSTYPE_VTABLES(NODE) \
2587 (LANG_TYPE_CLASS_CHECK (NODE)->vtables)
2589 /* The std::type_info variable representing this class, or NULL if no
2590 such variable has been created. This field is only set for the
2591 TYPE_MAIN_VARIANT of the class. */
2592 #define CLASSTYPE_TYPEINFO_VAR(NODE) \
2593 (LANG_TYPE_CLASS_CHECK (NODE)->typeinfo_var)
2595 /* Accessor macros for the BINFO_VIRTUALS list. */
2597 /* The number of bytes by which to adjust the `this' pointer when
2598 calling this virtual function. Subtract this value from the this
2599 pointer. Always non-NULL, might be constant zero though. */
2600 #define BV_DELTA(NODE) (TREE_PURPOSE (NODE))
2602 /* If non-NULL, the vtable index at which to find the vcall offset
2603 when calling this virtual function. Add the value at that vtable
2604 index to the this pointer. */
2605 #define BV_VCALL_INDEX(NODE) (TREE_TYPE (NODE))
2607 /* The function to call. */
2608 #define BV_FN(NODE) (TREE_VALUE (NODE))
2610 /* Whether or not this entry is for a lost primary virtual base. */
2611 #define BV_LOST_PRIMARY(NODE) (TREE_LANG_FLAG_0 (NODE))
2613 /* For FUNCTION_TYPE or METHOD_TYPE, a list of the exceptions that
2614 this type can raise. Each TREE_VALUE is a _TYPE. The TREE_VALUE
2615 will be NULL_TREE to indicate a throw specification of `()', or
2616 no exceptions allowed. For a noexcept specification, TREE_VALUE
2617 is NULL_TREE and TREE_PURPOSE is the constant-expression. For
2618 a deferred noexcept-specification, TREE_PURPOSE is a DEFERRED_NOEXCEPT
2619 (for templates) or an OVERLOAD list of functions (for implicitly
2620 declared functions). */
2621 #define TYPE_RAISES_EXCEPTIONS(NODE) \
2622 TYPE_LANG_SLOT_1 (FUNC_OR_METHOD_CHECK (NODE))
2624 /* For FUNCTION_TYPE or METHOD_TYPE, return 1 iff it is declared `throw()'
2625 or noexcept(true). */
2626 #define TYPE_NOTHROW_P(NODE) nothrow_spec_p (TYPE_RAISES_EXCEPTIONS (NODE))
2628 /* For FUNCTION_TYPE or METHOD_TYPE, true if NODE is noexcept. This is the
2629 case for things declared noexcept(true) and, with -fnothrow-opt, for
2630 throw() functions. */
2631 #define TYPE_NOEXCEPT_P(NODE) type_noexcept_p (NODE)
2633 /* The binding level associated with the namespace. */
2634 #define NAMESPACE_LEVEL(NODE) \
2635 (LANG_DECL_NS_CHECK (NODE)->level)
2637 /* Discriminator values for lang_decl. */
2639 enum lang_decl_selector
2648 /* Flags shared by all forms of DECL_LANG_SPECIFIC.
2650 Some of the flags live here only to make lang_decl_min/fn smaller. Do
2651 not make this struct larger than 32 bits; instead, make sel smaller. */
2653 struct GTY(()) lang_decl_base
{
2654 /* Larger than necessary for faster access. */
2655 ENUM_BITFIELD(lang_decl_selector
) selector
: 16;
2656 ENUM_BITFIELD(languages
) language
: 1;
2657 unsigned use_template
: 2;
2658 unsigned not_really_extern
: 1; /* var or fn */
2659 unsigned initialized_in_class
: 1; /* var or fn */
2660 unsigned threadprivate_or_deleted_p
: 1; /* var or fn */
2661 unsigned anticipated_p
: 1; /* fn, type or template */
2662 /* anticipated_p reused as DECL_OMP_PRIVATIZED_MEMBER in var */
2663 unsigned friend_or_tls
: 1; /* var, fn, type or template */
2664 unsigned unknown_bound_p
: 1; /* var */
2665 unsigned odr_used
: 1; /* var or fn */
2667 unsigned concept_p
: 1; /* applies to vars and functions */
2668 unsigned var_declared_inline_p
: 1; /* var */
2669 unsigned dependent_init_p
: 1; /* var */
2673 /* True for DECL codes which have template info and access. */
2674 #define LANG_DECL_HAS_MIN(NODE) \
2675 (VAR_OR_FUNCTION_DECL_P (NODE) \
2676 || TREE_CODE (NODE) == FIELD_DECL \
2677 || TREE_CODE (NODE) == CONST_DECL \
2678 || TREE_CODE (NODE) == TYPE_DECL \
2679 || TREE_CODE (NODE) == TEMPLATE_DECL \
2680 || TREE_CODE (NODE) == USING_DECL \
2681 || TREE_CODE (NODE) == CONCEPT_DECL)
2683 /* DECL_LANG_SPECIFIC for the above codes. */
2685 struct GTY(()) lang_decl_min
{
2686 struct lang_decl_base base
; /* 32-bits. */
2688 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
2690 In a FUNCTION_DECL for which DECL_THUNK_P does not hold,
2691 VAR_DECL, TYPE_DECL, or TEMPLATE_DECL, this is
2692 DECL_TEMPLATE_INFO. */
2695 /* In a DECL_THUNK_P FUNCTION_DECL, this is THUNK_VIRTUAL_OFFSET.
2696 In a lambda-capture proxy VAR_DECL, this is DECL_CAPTURED_VARIABLE.
2697 In a function-scope TREE_STATIC VAR_DECL or IMPLICIT_TYPEDEF_P TYPE_DECL,
2698 this is DECL_DISCRIMINATOR.
2699 Otherwise, in a class-scope DECL, this is DECL_ACCESS. */
2703 /* Additional DECL_LANG_SPECIFIC information for functions. */
2705 struct GTY(()) lang_decl_fn
{
2706 struct lang_decl_min min
;
2708 /* In a overloaded operator, this is the compressed operator code. */
2709 unsigned ovl_op_code
: 6;
2710 unsigned global_ctor_p
: 1;
2711 unsigned global_dtor_p
: 1;
2713 unsigned static_function
: 1;
2714 unsigned pure_virtual
: 1;
2715 unsigned defaulted_p
: 1;
2716 unsigned has_in_charge_parm_p
: 1;
2717 unsigned has_vtt_parm_p
: 1;
2718 unsigned pending_inline_p
: 1;
2719 unsigned nonconverting
: 1;
2720 unsigned thunk_p
: 1;
2722 unsigned this_thunk_p
: 1;
2723 unsigned hidden_friend_p
: 1;
2724 unsigned omp_declare_reduction_p
: 1;
2725 unsigned has_dependent_explicit_spec_p
: 1;
2726 unsigned immediate_fn_p
: 1;
2727 unsigned maybe_deleted
: 1;
2728 unsigned coroutine_p
: 1;
2732 /* 32-bits padding on 64-bit host. */
2734 /* For a non-thunk function decl, this is a tree list of
2735 friendly classes. For a thunk function decl, it is the
2736 thunked to function decl. */
2737 tree befriending_classes
;
2739 /* For a non-virtual FUNCTION_DECL, this is
2740 DECL_FRIEND_CONTEXT. For a virtual FUNCTION_DECL for which
2741 DECL_THIS_THUNK_P does not hold, this is DECL_THUNKS. Both
2742 this pointer and result pointer adjusting thunks are
2743 chained here. This pointer thunks to return pointer thunks
2744 will be chained on the return pointer thunk. */
2749 /* In a non-thunk FUNCTION_DECL, this is DECL_CLONED_FUNCTION. */
2750 tree
GTY ((tag ("0"))) cloned_function
;
2752 /* In a FUNCTION_DECL for which THUNK_P holds this is the
2753 THUNK_FIXED_OFFSET. */
2754 HOST_WIDE_INT
GTY ((tag ("1"))) fixed_offset
;
2755 } GTY ((desc ("%1.thunk_p"))) u5
;
2759 struct cp_token_cache
* GTY ((tag ("1"))) pending_inline_info
;
2760 tree
GTY ((tag ("0"))) saved_auto_return_type
;
2761 } GTY ((desc ("%1.pending_inline_p"))) u
;
2765 /* DECL_LANG_SPECIFIC for namespaces. */
2767 struct GTY(()) lang_decl_ns
{
2768 struct lang_decl_base base
; /* 32 bits. */
2769 cp_binding_level
*level
;
2771 /* Inline children. Needs to be va_gc, because of PCH. */
2772 vec
<tree
, va_gc
> *inlinees
;
2774 /* Hash table of bound decls. It'd be nice to have this inline, but
2775 as the hash_map has a dtor, we can't then put this struct into a
2776 union (until moving to c++11). */
2777 hash_table
<named_decl_hash
> *bindings
;
2780 /* DECL_LANG_SPECIFIC for parameters. */
2782 struct GTY(()) lang_decl_parm
{
2783 struct lang_decl_base base
; /* 32 bits. */
2788 /* Additional DECL_LANG_SPECIFIC information for structured bindings. */
2790 struct GTY(()) lang_decl_decomp
{
2791 struct lang_decl_min min
;
2792 /* The artificial underlying "e" variable of the structured binding
2797 /* DECL_LANG_SPECIFIC for all types. It would be nice to just make this a
2798 union rather than a struct containing a union as its only field, but
2799 tree.h declares it as a struct. */
2801 struct GTY(()) lang_decl
{
2802 union GTY((desc ("%h.base.selector"))) lang_decl_u
{
2803 /* Nothing of only the base type exists. */
2804 struct lang_decl_base
GTY ((default)) base
;
2805 struct lang_decl_min
GTY((tag ("lds_min"))) min
;
2806 struct lang_decl_fn
GTY ((tag ("lds_fn"))) fn
;
2807 struct lang_decl_ns
GTY((tag ("lds_ns"))) ns
;
2808 struct lang_decl_parm
GTY((tag ("lds_parm"))) parm
;
2809 struct lang_decl_decomp
GTY((tag ("lds_decomp"))) decomp
;
2813 /* Looks through a template (if present) to find what it declares. */
2814 #define STRIP_TEMPLATE(NODE) \
2815 (TREE_CODE (NODE) == TEMPLATE_DECL ? DECL_TEMPLATE_RESULT (NODE) : NODE)
2817 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
2819 #define LANG_DECL_MIN_CHECK(NODE) __extension__ \
2820 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
2821 if (!LANG_DECL_HAS_MIN (NODE)) \
2822 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
2825 /* We want to be able to check DECL_CONSTRUCTOR_P and such on a function
2826 template, not just on a FUNCTION_DECL. So when looking for things in
2827 lang_decl_fn, look down through a TEMPLATE_DECL into its result. */
2828 #define LANG_DECL_FN_CHECK(NODE) __extension__ \
2829 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE)); \
2830 if (!DECL_DECLARES_FUNCTION_P (NODE) \
2831 || lt->u.base.selector != lds_fn) \
2832 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
2835 #define LANG_DECL_NS_CHECK(NODE) __extension__ \
2836 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
2837 if (TREE_CODE (NODE) != NAMESPACE_DECL \
2838 || lt->u.base.selector != lds_ns) \
2839 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
2842 #define LANG_DECL_PARM_CHECK(NODE) __extension__ \
2843 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
2844 if (TREE_CODE (NODE) != PARM_DECL \
2845 || lt->u.base.selector != lds_parm) \
2846 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
2849 #define LANG_DECL_DECOMP_CHECK(NODE) __extension__ \
2850 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
2852 || lt->u.base.selector != lds_decomp) \
2853 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
2858 #define LANG_DECL_MIN_CHECK(NODE) \
2859 (&DECL_LANG_SPECIFIC (NODE)->u.min)
2861 #define LANG_DECL_FN_CHECK(NODE) \
2862 (&DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE))->u.fn)
2864 #define LANG_DECL_NS_CHECK(NODE) \
2865 (&DECL_LANG_SPECIFIC (NODE)->u.ns)
2867 #define LANG_DECL_PARM_CHECK(NODE) \
2868 (&DECL_LANG_SPECIFIC (NODE)->u.parm)
2870 #define LANG_DECL_DECOMP_CHECK(NODE) \
2871 (&DECL_LANG_SPECIFIC (NODE)->u.decomp)
2873 #endif /* ENABLE_TREE_CHECKING */
2875 /* For a FUNCTION_DECL or a VAR_DECL, the language linkage for the
2876 declaration. Some entities (like a member function in a local
2877 class, or a local variable) do not have linkage at all, and this
2878 macro should not be used in those cases.
2880 Implementation note: A FUNCTION_DECL without DECL_LANG_SPECIFIC was
2881 created by language-independent code, and has C linkage. Most
2882 VAR_DECLs have C++ linkage, and do not have DECL_LANG_SPECIFIC, but
2883 we do create DECL_LANG_SPECIFIC for variables with non-C++ linkage. */
2884 #define DECL_LANGUAGE(NODE) \
2885 (DECL_LANG_SPECIFIC (NODE) \
2886 ? DECL_LANG_SPECIFIC (NODE)->u.base.language \
2887 : (TREE_CODE (NODE) == FUNCTION_DECL \
2888 ? lang_c : lang_cplusplus))
2890 /* Set the language linkage for NODE to LANGUAGE. */
2891 #define SET_DECL_LANGUAGE(NODE, LANGUAGE) \
2892 (DECL_LANG_SPECIFIC (NODE)->u.base.language = (LANGUAGE))
2894 /* For FUNCTION_DECLs and TEMPLATE_DECLs: nonzero means that this function
2895 is a constructor. */
2896 #define DECL_CONSTRUCTOR_P(NODE) \
2897 DECL_CXX_CONSTRUCTOR_P (STRIP_TEMPLATE (NODE))
2899 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a complete
2901 #define DECL_COMPLETE_CONSTRUCTOR_P(NODE) \
2902 (DECL_NAME (NODE) == complete_ctor_identifier)
2904 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a base
2906 #define DECL_BASE_CONSTRUCTOR_P(NODE) \
2907 (DECL_NAME (NODE) == base_ctor_identifier)
2909 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor, but not either the
2910 specialized in-charge constructor or the specialized not-in-charge
2912 #define DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P(NODE) \
2913 (DECL_NAME (NODE) == ctor_identifier)
2915 /* Nonzero if NODE (a FUNCTION_DECL) is a copy constructor. */
2916 #define DECL_COPY_CONSTRUCTOR_P(NODE) \
2917 (DECL_CONSTRUCTOR_P (NODE) && copy_fn_p (NODE) > 0)
2919 /* Nonzero if NODE (a FUNCTION_DECL) is a move constructor. */
2920 #define DECL_MOVE_CONSTRUCTOR_P(NODE) \
2921 (DECL_CONSTRUCTOR_P (NODE) && move_fn_p (NODE))
2923 /* Nonzero if NODE (a FUNCTION_DECL or TEMPLATE_DECL)
2925 #define DECL_DESTRUCTOR_P(NODE) \
2926 DECL_CXX_DESTRUCTOR_P (STRIP_TEMPLATE (NODE))
2928 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor, but not the
2929 specialized in-charge constructor, in-charge deleting constructor,
2930 or the base destructor. */
2931 #define DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P(NODE) \
2932 (DECL_NAME (NODE) == dtor_identifier)
2934 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
2936 #define DECL_COMPLETE_DESTRUCTOR_P(NODE) \
2937 (DECL_NAME (NODE) == complete_dtor_identifier)
2939 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a base
2941 #define DECL_BASE_DESTRUCTOR_P(NODE) \
2942 (DECL_NAME (NODE) == base_dtor_identifier)
2944 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
2945 object that deletes the object after it has been destroyed. */
2946 #define DECL_DELETING_DESTRUCTOR_P(NODE) \
2947 (DECL_NAME (NODE) == deleting_dtor_identifier)
2949 /* Nonzero if either DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P or
2950 DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P is true of NODE. */
2951 #define DECL_MAYBE_IN_CHARGE_CDTOR_P(NODE) \
2952 (DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (NODE) \
2953 || DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (NODE))
2955 /* Nonzero if NODE (a _DECL) is a cloned constructor or
2957 #define DECL_CLONED_FUNCTION_P(NODE) \
2959 && IDENTIFIER_CDTOR_P (DECL_NAME (NODE)) \
2960 && !DECL_MAYBE_IN_CHARGE_CDTOR_P (NODE))
2962 /* If DECL_CLONED_FUNCTION_P holds, this is the function that was
2964 #define DECL_CLONED_FUNCTION(NODE) \
2965 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (NODE))->u.fn.u5.cloned_function)
2967 /* Perform an action for each clone of FN, if FN is a function with
2968 clones. This macro should be used like:
2970 FOR_EACH_CLONE (clone, fn)
2974 #define FOR_EACH_CLONE(CLONE, FN) \
2975 if (!(TREE_CODE (FN) == FUNCTION_DECL \
2976 && DECL_MAYBE_IN_CHARGE_CDTOR_P (FN))) \
2979 for (CLONE = DECL_CHAIN (FN); \
2980 CLONE && DECL_CLONED_FUNCTION_P (CLONE); \
2981 CLONE = DECL_CHAIN (CLONE))
2983 /* Nonzero if NODE has DECL_DISCRIMINATOR and not DECL_ACCESS. */
2984 #define DECL_DISCRIMINATOR_P(NODE) \
2985 (((TREE_CODE (NODE) == VAR_DECL && TREE_STATIC (NODE)) \
2986 || DECL_IMPLICIT_TYPEDEF_P (NODE)) \
2987 && DECL_FUNCTION_SCOPE_P (NODE))
2989 /* Discriminator for name mangling. */
2990 #define DECL_DISCRIMINATOR(NODE) (LANG_DECL_MIN_CHECK (NODE)->access)
2992 /* The index of a user-declared parameter in its function, starting at 1.
2993 All artificial parameters will have index 0. */
2994 #define DECL_PARM_INDEX(NODE) \
2995 (LANG_DECL_PARM_CHECK (NODE)->index)
2997 /* The level of a user-declared parameter in its function, starting at 1.
2998 A parameter of the function will have level 1; a parameter of the first
2999 nested function declarator (i.e. t in void f (void (*p)(T t))) will have
3001 #define DECL_PARM_LEVEL(NODE) \
3002 (LANG_DECL_PARM_CHECK (NODE)->level)
3004 /* Nonzero if the VTT parm has been added to NODE. */
3005 #define DECL_HAS_VTT_PARM_P(NODE) \
3006 (LANG_DECL_FN_CHECK (NODE)->has_vtt_parm_p)
3008 /* Nonzero if NODE is a user-defined conversion operator. */
3009 #define DECL_CONV_FN_P(NODE) IDENTIFIER_CONV_OP_P (DECL_NAME (NODE))
3011 /* The type to which conversion operator FN converts to. */
3012 #define DECL_CONV_FN_TYPE(FN) \
3013 TREE_TYPE ((gcc_checking_assert (DECL_CONV_FN_P (FN)), DECL_NAME (FN)))
3015 /* Nonzero if NODE, a static data member, was declared in its class as an
3016 array of unknown bound. */
3017 #define VAR_HAD_UNKNOWN_BOUND(NODE) \
3018 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE)) \
3019 ? DECL_LANG_SPECIFIC (NODE)->u.base.unknown_bound_p \
3021 #define SET_VAR_HAD_UNKNOWN_BOUND(NODE) \
3022 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))->u.base.unknown_bound_p = true)
3024 /* True iff decl NODE is for an overloaded operator. */
3025 #define DECL_OVERLOADED_OPERATOR_P(NODE) \
3026 IDENTIFIER_ANY_OP_P (DECL_NAME (NODE))
3028 /* Nonzero if NODE is an assignment operator (including += and such). */
3029 #define DECL_ASSIGNMENT_OPERATOR_P(NODE) \
3030 IDENTIFIER_ASSIGN_OP_P (DECL_NAME (NODE))
3032 /* NODE is a function_decl for an overloaded operator. Return its
3033 compressed (raw) operator code. Note that this is not a TREE_CODE. */
3034 #define DECL_OVERLOADED_OPERATOR_CODE_RAW(NODE) \
3035 (LANG_DECL_FN_CHECK (NODE)->ovl_op_code)
3037 /* DECL is an overloaded operator. Test whether it is for TREE_CODE
3038 (a literal constant). */
3039 #define DECL_OVERLOADED_OPERATOR_IS(DECL, CODE) \
3040 (DECL_OVERLOADED_OPERATOR_CODE_RAW (DECL) == OVL_OP_##CODE)
3042 /* For FUNCTION_DECLs: nonzero means that this function is a
3043 constructor or a destructor with an extra in-charge parameter to
3044 control whether or not virtual bases are constructed. */
3045 #define DECL_HAS_IN_CHARGE_PARM_P(NODE) \
3046 (LANG_DECL_FN_CHECK (NODE)->has_in_charge_parm_p)
3048 /* Nonzero if DECL is a declaration of __builtin_constant_p. */
3049 #define DECL_IS_BUILTIN_CONSTANT_P(NODE) \
3050 (TREE_CODE (NODE) == FUNCTION_DECL \
3051 && DECL_BUILT_IN_CLASS (NODE) == BUILT_IN_NORMAL \
3052 && DECL_FUNCTION_CODE (NODE) == BUILT_IN_CONSTANT_P)
3054 /* Nonzero for _DECL means that this decl appears in (or will appear
3055 in) as a member in a RECORD_TYPE or UNION_TYPE node. It is also for
3056 detecting circularity in case members are multiply defined. In the
3057 case of a VAR_DECL, it means that no definition has been seen, even
3058 if an initializer has been. */
3059 #define DECL_IN_AGGR_P(NODE) (DECL_LANG_FLAG_3 (NODE))
3061 /* Nonzero for a VAR_DECL means that the variable's initialization (if
3062 any) has been processed. (In general, DECL_INITIALIZED_P is
3063 !DECL_EXTERNAL, but static data members may be initialized even if
3065 #define DECL_INITIALIZED_P(NODE) \
3066 (TREE_LANG_FLAG_1 (VAR_DECL_CHECK (NODE)))
3068 /* Nonzero for a VAR_DECL iff an explicit initializer was provided
3069 or a non-trivial constructor is called. */
3070 #define DECL_NONTRIVIALLY_INITIALIZED_P(NODE) \
3071 (TREE_LANG_FLAG_6 (VAR_DECL_CHECK (NODE)))
3073 /* Nonzero for a VAR_DECL that was initialized with a
3074 constant-expression. */
3075 #define DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P(NODE) \
3076 (TREE_LANG_FLAG_2 (VAR_DECL_CHECK (NODE)))
3078 /* Nonzero if the DECL was initialized in the class definition itself,
3079 rather than outside the class. This is used for both static member
3080 VAR_DECLS, and FUNCTION_DECLS that are defined in the class. */
3081 #define DECL_INITIALIZED_IN_CLASS_P(DECL) \
3082 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \
3083 ->u.base.initialized_in_class)
3085 /* Nonzero if the DECL is used in the sense of 3.2 [basic.def.odr].
3086 Only available for decls with DECL_LANG_SPECIFIC. */
3087 #define DECL_ODR_USED(DECL) \
3088 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \
3091 /* Nonzero for DECL means that this decl is just a friend declaration,
3092 and should not be added to the list of members for this class. */
3093 #define DECL_FRIEND_P(NODE) \
3094 (DECL_LANG_SPECIFIC (TYPE_FUNCTION_OR_TEMPLATE_DECL_CHECK (NODE)) \
3095 ->u.base.friend_or_tls)
3097 /* Nonzero if the thread-local variable was declared with __thread as
3098 opposed to thread_local. */
3099 #define DECL_GNU_TLS_P(NODE) \
3100 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE)) \
3101 && DECL_LANG_SPECIFIC (NODE)->u.base.friend_or_tls)
3102 #define SET_DECL_GNU_TLS_P(NODE) \
3103 (retrofit_lang_decl (VAR_DECL_CHECK (NODE)), \
3104 DECL_LANG_SPECIFIC (NODE)->u.base.friend_or_tls = true)
3106 /* A TREE_LIST of the types which have befriended this FUNCTION_DECL. */
3107 #define DECL_BEFRIENDING_CLASSES(NODE) \
3108 (LANG_DECL_FN_CHECK (NODE)->befriending_classes)
3110 /* Nonzero for FUNCTION_DECL means that this decl is a static
3112 #define DECL_STATIC_FUNCTION_P(NODE) \
3113 (LANG_DECL_FN_CHECK (NODE)->static_function)
3115 /* Nonzero for FUNCTION_DECL means that this decl is a non-static
3117 #define DECL_NONSTATIC_MEMBER_FUNCTION_P(NODE) \
3118 (TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE)
3120 /* Nonzero for FUNCTION_DECL means that this decl is a member function
3121 (static or non-static). */
3122 #define DECL_FUNCTION_MEMBER_P(NODE) \
3123 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) || DECL_STATIC_FUNCTION_P (NODE))
3125 /* Nonzero for FUNCTION_DECL means that this member function
3126 has `this' as const X *const. */
3127 #define DECL_CONST_MEMFUNC_P(NODE) \
3128 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
3129 && CP_TYPE_CONST_P (TREE_TYPE (TREE_VALUE \
3130 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
3132 /* Nonzero for FUNCTION_DECL means that this member function
3133 has `this' as volatile X *const. */
3134 #define DECL_VOLATILE_MEMFUNC_P(NODE) \
3135 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
3136 && CP_TYPE_VOLATILE_P (TREE_TYPE (TREE_VALUE \
3137 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
3139 /* Nonzero for a DECL means that this member is a non-static member. */
3140 #define DECL_NONSTATIC_MEMBER_P(NODE) \
3141 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
3142 || TREE_CODE (NODE) == FIELD_DECL)
3144 /* Nonzero for a FIELD_DECL means that this member object type
3146 #define DECL_MUTABLE_P(NODE) (DECL_LANG_FLAG_0 (FIELD_DECL_CHECK (NODE)))
3148 /* Nonzero for _DECL means that this constructor or conversion function is
3150 #define DECL_NONCONVERTING_P(NODE) \
3151 (LANG_DECL_FN_CHECK (NODE)->nonconverting)
3153 /* Nonzero for FUNCTION_DECL means that this member function is a pure
3154 virtual function. */
3155 #define DECL_PURE_VIRTUAL_P(NODE) \
3156 (LANG_DECL_FN_CHECK (NODE)->pure_virtual)
3158 /* Nonzero for FUNCTION_DECL means that this member function (either
3159 a constructor or a conversion function) has an explicit specifier
3160 with a value-dependent expression. */
3161 #define DECL_HAS_DEPENDENT_EXPLICIT_SPEC_P(NODE) \
3162 (LANG_DECL_FN_CHECK (NODE)->has_dependent_explicit_spec_p)
3164 /* Nonzero for a defaulted FUNCTION_DECL for which we haven't decided yet if
3165 it's deleted; we will decide in synthesize_method. */
3166 #define DECL_MAYBE_DELETED(NODE) \
3167 (LANG_DECL_FN_CHECK (NODE)->maybe_deleted)
3169 /* True (in a FUNCTION_DECL) if NODE is a virtual function that is an
3170 invalid overrider for a function from a base class. Once we have
3171 complained about an invalid overrider we avoid complaining about it
3173 #define DECL_INVALID_OVERRIDER_P(NODE) \
3174 (DECL_LANG_FLAG_4 (NODE))
3176 /* True (in a FUNCTION_DECL) if NODE is a function declared with
3177 an override virt-specifier */
3178 #define DECL_OVERRIDE_P(NODE) (TREE_LANG_FLAG_0 (NODE))
3180 /* The thunks associated with NODE, a FUNCTION_DECL. */
3181 #define DECL_THUNKS(NODE) \
3182 (DECL_VIRTUAL_P (NODE) ? LANG_DECL_FN_CHECK (NODE)->context : NULL_TREE)
3184 /* Set DECL_THUNKS. */
3185 #define SET_DECL_THUNKS(NODE,THUNKS) \
3186 (LANG_DECL_FN_CHECK (NODE)->context = (THUNKS))
3188 /* If NODE, a FUNCTION_DECL, is a C++11 inheriting constructor, then this
3189 is the constructor it inherits from. */
3190 #define DECL_INHERITED_CTOR(NODE) \
3191 (DECL_DECLARES_FUNCTION_P (NODE) && DECL_CONSTRUCTOR_P (NODE) \
3192 ? LANG_DECL_FN_CHECK (NODE)->context : NULL_TREE)
3194 /* And this is the base that constructor comes from. */
3195 #define DECL_INHERITED_CTOR_BASE(NODE) \
3196 (DECL_INHERITED_CTOR (NODE) \
3197 ? DECL_CONTEXT (flag_new_inheriting_ctors \
3198 ? strip_inheriting_ctors (NODE) \
3199 : DECL_INHERITED_CTOR (NODE)) \
3202 /* Set the inherited base. */
3203 #define SET_DECL_INHERITED_CTOR(NODE,INH) \
3204 (LANG_DECL_FN_CHECK (NODE)->context = (INH))
3206 /* Nonzero if NODE is a thunk, rather than an ordinary function. */
3207 #define DECL_THUNK_P(NODE) \
3208 (TREE_CODE (NODE) == FUNCTION_DECL \
3209 && DECL_LANG_SPECIFIC (NODE) \
3210 && LANG_DECL_FN_CHECK (NODE)->thunk_p)
3212 /* Set DECL_THUNK_P for node. */
3213 #define SET_DECL_THUNK_P(NODE, THIS_ADJUSTING) \
3214 (LANG_DECL_FN_CHECK (NODE)->thunk_p = 1, \
3215 LANG_DECL_FN_CHECK (NODE)->this_thunk_p = (THIS_ADJUSTING))
3217 /* Nonzero if NODE is a this pointer adjusting thunk. */
3218 #define DECL_THIS_THUNK_P(NODE) \
3219 (DECL_THUNK_P (NODE) && LANG_DECL_FN_CHECK (NODE)->this_thunk_p)
3221 /* Nonzero if NODE is a result pointer adjusting thunk. */
3222 #define DECL_RESULT_THUNK_P(NODE) \
3223 (DECL_THUNK_P (NODE) && !LANG_DECL_FN_CHECK (NODE)->this_thunk_p)
3225 /* Nonzero if NODE is a FUNCTION_DECL, but not a thunk. */
3226 #define DECL_NON_THUNK_FUNCTION_P(NODE) \
3227 (TREE_CODE (NODE) == FUNCTION_DECL && !DECL_THUNK_P (NODE))
3229 /* Nonzero if NODE is `extern "C"'. */
3230 #define DECL_EXTERN_C_P(NODE) \
3231 (DECL_LANGUAGE (NODE) == lang_c)
3233 /* Nonzero if NODE is an `extern "C"' function. */
3234 #define DECL_EXTERN_C_FUNCTION_P(NODE) \
3235 (DECL_NON_THUNK_FUNCTION_P (NODE) && DECL_EXTERN_C_P (NODE))
3237 /* Non-zero if this variable is declared `constinit' specifier. */
3238 #define DECL_DECLARED_CONSTINIT_P(NODE) \
3239 (DECL_LANG_FLAG_7 (VAR_DECL_CHECK (NODE)))
3241 /* True if DECL is declared 'constexpr'. */
3242 #define DECL_DECLARED_CONSTEXPR_P(DECL) \
3243 DECL_LANG_FLAG_8 (VAR_OR_FUNCTION_DECL_CHECK (STRIP_TEMPLATE (DECL)))
3245 /* True if FNDECL is an immediate function. */
3246 #define DECL_IMMEDIATE_FUNCTION_P(NODE) \
3247 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (STRIP_TEMPLATE (NODE))) \
3248 ? LANG_DECL_FN_CHECK (NODE)->immediate_fn_p \
3250 #define SET_DECL_IMMEDIATE_FUNCTION_P(NODE) \
3251 (retrofit_lang_decl (FUNCTION_DECL_CHECK (NODE)), \
3252 LANG_DECL_FN_CHECK (NODE)->immediate_fn_p = true)
3254 // True if NODE was declared as 'concept'. The flag implies that the
3255 // declaration is constexpr, that the declaration cannot be specialized or
3256 // refined, and that the result type must be convertible to bool.
3257 #define DECL_DECLARED_CONCEPT_P(NODE) \
3258 (DECL_LANG_SPECIFIC (NODE)->u.base.concept_p)
3260 /* Nonzero if this DECL is the __PRETTY_FUNCTION__ variable in a
3261 template function. */
3262 #define DECL_PRETTY_FUNCTION_P(NODE) \
3264 && id_equal (DECL_NAME (NODE), "__PRETTY_FUNCTION__"))
3266 /* For a DECL, true if it is __func__ or similar. */
3267 #define DECL_FNAME_P(NODE) \
3268 (VAR_P (NODE) && DECL_NAME (NODE) && DECL_ARTIFICIAL (NODE) \
3269 && DECL_HAS_VALUE_EXPR_P (NODE) \
3270 && (id_equal (DECL_NAME (NODE), "__PRETTY_FUNCTION__") \
3271 || id_equal (DECL_NAME (NODE), "__FUNCTION__") \
3272 || id_equal (DECL_NAME (NODE), "__func__")))
3274 /* Nonzero if the variable was declared to be thread-local.
3275 We need a special C++ version of this test because the middle-end
3276 DECL_THREAD_LOCAL_P uses the symtab, so we can't use it for
3278 #define CP_DECL_THREAD_LOCAL_P(NODE) \
3279 (TREE_LANG_FLAG_0 (VAR_DECL_CHECK (NODE)))
3281 /* The _TYPE context in which this _DECL appears. This field holds the
3282 class where a virtual function instance is actually defined. */
3283 #define DECL_CLASS_CONTEXT(NODE) \
3284 (DECL_CLASS_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : NULL_TREE)
3286 /* For a non-member friend function, the class (if any) in which this
3287 friend was defined. For example, given:
3289 struct S { friend void f () { ... } };
3291 the DECL_FRIEND_CONTEXT for `f' will be `S'. */
3292 #define DECL_FRIEND_CONTEXT(NODE) \
3293 ((DECL_DECLARES_FUNCTION_P (NODE) \
3294 && DECL_FRIEND_P (NODE) && !DECL_FUNCTION_MEMBER_P (NODE)) \
3295 ? LANG_DECL_FN_CHECK (NODE)->context \
3298 /* Set the DECL_FRIEND_CONTEXT for NODE to CONTEXT. */
3299 #define SET_DECL_FRIEND_CONTEXT(NODE, CONTEXT) \
3300 (LANG_DECL_FN_CHECK (NODE)->context = (CONTEXT))
3302 #define CP_DECL_CONTEXT(NODE) \
3303 (!DECL_FILE_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : global_namespace)
3304 #define CP_TYPE_CONTEXT(NODE) \
3305 (!TYPE_FILE_SCOPE_P (NODE) ? TYPE_CONTEXT (NODE) : global_namespace)
3306 #define FROB_CONTEXT(NODE) \
3307 ((NODE) == global_namespace ? DECL_CONTEXT (NODE) : (NODE))
3309 /* 1 iff NODE has namespace scope, including the global namespace. */
3310 #define DECL_NAMESPACE_SCOPE_P(NODE) \
3311 (!DECL_TEMPLATE_PARM_P (NODE) \
3312 && TREE_CODE (CP_DECL_CONTEXT (NODE)) == NAMESPACE_DECL)
3314 #define TYPE_NAMESPACE_SCOPE_P(NODE) \
3315 (TREE_CODE (CP_TYPE_CONTEXT (NODE)) == NAMESPACE_DECL)
3317 #define NAMESPACE_SCOPE_P(NODE) \
3318 ((DECL_P (NODE) && DECL_NAMESPACE_SCOPE_P (NODE)) \
3319 || (TYPE_P (NODE) && TYPE_NAMESPACE_SCOPE_P (NODE)))
3321 /* 1 iff NODE is a class member. */
3322 #define DECL_CLASS_SCOPE_P(NODE) \
3323 (DECL_CONTEXT (NODE) && TYPE_P (DECL_CONTEXT (NODE)))
3325 #define TYPE_CLASS_SCOPE_P(NODE) \
3326 (TYPE_CONTEXT (NODE) && TYPE_P (TYPE_CONTEXT (NODE)))
3328 /* 1 iff NODE is function-local. */
3329 #define DECL_FUNCTION_SCOPE_P(NODE) \
3330 (DECL_CONTEXT (NODE) \
3331 && TREE_CODE (DECL_CONTEXT (NODE)) == FUNCTION_DECL)
3333 #define TYPE_FUNCTION_SCOPE_P(NODE) \
3334 (TYPE_CONTEXT (NODE) && TREE_CODE (TYPE_CONTEXT (NODE)) == FUNCTION_DECL)
3336 /* 1 iff VAR_DECL node NODE is a type-info decl. This flag is set for
3337 both the primary typeinfo object and the associated NTBS name. */
3338 #define DECL_TINFO_P(NODE) TREE_LANG_FLAG_4 (VAR_DECL_CHECK (NODE))
3340 /* 1 iff VAR_DECL node NODE is virtual table or VTT. We forward to
3341 DECL_VIRTUAL_P from the common code, as that has the semantics we
3342 need. But we want a more descriptive name. */
3343 #define DECL_VTABLE_OR_VTT_P(NODE) DECL_VIRTUAL_P (VAR_DECL_CHECK (NODE))
3345 /* 1 iff FUNCTION_TYPE or METHOD_TYPE has a ref-qualifier (either & or &&). */
3346 #define FUNCTION_REF_QUALIFIED(NODE) \
3347 TREE_LANG_FLAG_4 (FUNC_OR_METHOD_CHECK (NODE))
3349 /* 1 iff FUNCTION_TYPE or METHOD_TYPE has &&-ref-qualifier. */
3350 #define FUNCTION_RVALUE_QUALIFIED(NODE) \
3351 TREE_LANG_FLAG_5 (FUNC_OR_METHOD_CHECK (NODE))
3353 /* 1 iff NODE is function-local, but for types. */
3354 #define LOCAL_CLASS_P(NODE) \
3355 (decl_function_context (TYPE_MAIN_DECL (NODE)) != NULL_TREE)
3357 /* The nesting depth of namespace, class or function. Makes is_ancestor much
3358 simpler. Only 8 bits available. */
3359 #define SCOPE_DEPTH(NODE) \
3360 (NAMESPACE_DECL_CHECK (NODE)->base.u.bits.address_space)
3362 /* Whether the namepace is an inline namespace. */
3363 #define DECL_NAMESPACE_INLINE_P(NODE) \
3364 TREE_LANG_FLAG_0 (NAMESPACE_DECL_CHECK (NODE))
3366 /* In a NAMESPACE_DECL, a vector of inline namespaces. */
3367 #define DECL_NAMESPACE_INLINEES(NODE) \
3368 (LANG_DECL_NS_CHECK (NODE)->inlinees)
3370 /* Pointer to hash_map from IDENTIFIERS to DECLS */
3371 #define DECL_NAMESPACE_BINDINGS(NODE) \
3372 (LANG_DECL_NS_CHECK (NODE)->bindings)
3374 /* In a NAMESPACE_DECL, points to the original namespace if this is
3375 a namespace alias. */
3376 #define DECL_NAMESPACE_ALIAS(NODE) \
3377 DECL_ABSTRACT_ORIGIN (NAMESPACE_DECL_CHECK (NODE))
3378 #define ORIGINAL_NAMESPACE(NODE) \
3379 (DECL_NAMESPACE_ALIAS (NODE) ? DECL_NAMESPACE_ALIAS (NODE) : (NODE))
3381 /* Nonzero if NODE is the std namespace. */
3382 #define DECL_NAMESPACE_STD_P(NODE) \
3383 ((NODE) == std_node)
3385 /* In a TREE_LIST in an attribute list, indicates that the attribute
3386 must be applied at instantiation time. */
3387 #define ATTR_IS_DEPENDENT(NODE) TREE_LANG_FLAG_0 (TREE_LIST_CHECK (NODE))
3389 /* In a TREE_LIST in the argument of attribute abi_tag, indicates that the tag
3390 was inherited from a template parameter, not explicitly indicated. */
3391 #define ABI_TAG_IMPLICIT(NODE) TREE_LANG_FLAG_0 (TREE_LIST_CHECK (NODE))
3393 /* Non zero if this is a using decl for a dependent scope. */
3394 #define DECL_DEPENDENT_P(NODE) DECL_LANG_FLAG_0 (USING_DECL_CHECK (NODE))
3396 /* The scope named in a using decl. */
3397 #define USING_DECL_SCOPE(NODE) DECL_RESULT_FLD (USING_DECL_CHECK (NODE))
3399 /* The decls named by a using decl. */
3400 #define USING_DECL_DECLS(NODE) DECL_INITIAL (USING_DECL_CHECK (NODE))
3402 /* Non zero if the using decl refers to a dependent type. */
3403 #define USING_DECL_TYPENAME_P(NODE) DECL_LANG_FLAG_1 (USING_DECL_CHECK (NODE))
3405 /* In a FUNCTION_DECL, this is nonzero if this function was defined in
3406 the class definition. We have saved away the text of the function,
3407 but have not yet processed it. */
3408 #define DECL_PENDING_INLINE_P(NODE) \
3409 (LANG_DECL_FN_CHECK (NODE)->pending_inline_p)
3411 /* If DECL_PENDING_INLINE_P holds, this is the saved text of the
3413 #define DECL_PENDING_INLINE_INFO(NODE) \
3414 (LANG_DECL_FN_CHECK (NODE)->u.pending_inline_info)
3416 /* Nonzero for TYPE_DECL means that it was written 'using name = type'. */
3417 #define TYPE_DECL_ALIAS_P(NODE) \
3418 DECL_LANG_FLAG_6 (TYPE_DECL_CHECK (NODE))
3420 /* Nonzero for TEMPLATE_DECL means that it is a 'complex' alias template. */
3421 #define TEMPLATE_DECL_COMPLEX_ALIAS_P(NODE) \
3422 DECL_LANG_FLAG_2 (TEMPLATE_DECL_CHECK (NODE))
3424 /* Nonzero for a type which is an alias for another type; i.e, a type
3425 which declaration was written 'using name-of-type =
3427 #define TYPE_ALIAS_P(NODE) \
3429 && TYPE_NAME (NODE) \
3430 && TREE_CODE (TYPE_NAME (NODE)) == TYPE_DECL \
3431 && TYPE_DECL_ALIAS_P (TYPE_NAME (NODE)))
3433 /* If non-NULL for a VAR_DECL, FUNCTION_DECL, TYPE_DECL, TEMPLATE_DECL,
3434 or CONCEPT_DECL, the entity is either a template specialization (if
3435 DECL_USE_TEMPLATE is nonzero) or the abstract instance of the
3438 In either case, DECL_TEMPLATE_INFO is a TEMPLATE_INFO, whose
3439 TI_TEMPLATE is the TEMPLATE_DECL of which this entity is a
3440 specialization or abstract instance. The TI_ARGS is the
3441 template arguments used to specialize the template.
3445 template <typename T> struct S { friend void f(T) {} };
3447 In this case, S<int>::f is, from the point of view of the compiler,
3448 an instantiation of a template -- but, from the point of view of
3449 the language, each instantiation of S results in a wholly unrelated
3450 global function f. In this case, DECL_TEMPLATE_INFO for S<int>::f
3451 will be non-NULL, but DECL_USE_TEMPLATE will be zero.
3453 In a friend declaration, TI_TEMPLATE can be an overload set, or
3455 #define DECL_TEMPLATE_INFO(NODE) \
3456 (DECL_LANG_SPECIFIC (TEMPLATE_INFO_DECL_CHECK (NODE)) \
3457 ->u.min.template_info)
3459 /* For a lambda capture proxy, its captured variable. */
3460 #define DECL_CAPTURED_VARIABLE(NODE) \
3461 (LANG_DECL_MIN_CHECK (NODE)->access)
3463 /* For a VAR_DECL, indicates that the variable is actually a
3464 non-static data member of anonymous union that has been promoted to
3466 #define DECL_ANON_UNION_VAR_P(NODE) \
3467 (DECL_LANG_FLAG_4 (VAR_DECL_CHECK (NODE)))
3469 /* Template information for a RECORD_TYPE or UNION_TYPE. */
3470 #define CLASSTYPE_TEMPLATE_INFO(NODE) \
3471 (TYPE_LANG_SLOT_1 (RECORD_OR_UNION_CHECK (NODE)))
3473 /* Template information for a template template parameter. */
3474 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO(NODE) \
3475 (TYPE_LANG_SLOT_1 (BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK (NODE)))
3477 /* Template information for an ENUMERAL_, RECORD_, UNION_TYPE, or
3478 BOUND_TEMPLATE_TEMPLATE_PARM type. This ignores any alias
3479 templateness of NODE. It'd be nice if this could unconditionally
3480 access the slot, rather than return NULL if given a
3481 non-templatable type. */
3482 #define TYPE_TEMPLATE_INFO(NODE) \
3483 (TREE_CODE (NODE) == ENUMERAL_TYPE \
3484 || TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM \
3485 || RECORD_OR_UNION_TYPE_P (NODE) \
3486 ? TYPE_LANG_SLOT_1 (NODE) : NULL_TREE)
3488 /* Template information (if any) for an alias type. */
3489 #define TYPE_ALIAS_TEMPLATE_INFO(NODE) \
3490 (DECL_LANG_SPECIFIC (TYPE_NAME (NODE)) \
3491 ? DECL_TEMPLATE_INFO (TYPE_NAME (NODE)) \
3494 /* If NODE is a type alias, this accessor returns the template info
3495 for the alias template (if any). Otherwise behave as
3496 TYPE_TEMPLATE_INFO. */
3497 #define TYPE_TEMPLATE_INFO_MAYBE_ALIAS(NODE) \
3498 (typedef_variant_p (NODE) \
3499 ? TYPE_ALIAS_TEMPLATE_INFO (NODE) \
3500 : TYPE_TEMPLATE_INFO (NODE))
3502 /* Set the template information for a non-alias n ENUMERAL_, RECORD_,
3503 or UNION_TYPE to VAL. ALIAS's are dealt with separately. */
3504 #define SET_TYPE_TEMPLATE_INFO(NODE, VAL) \
3505 (gcc_checking_assert (TREE_CODE (NODE) == ENUMERAL_TYPE \
3506 || (CLASS_TYPE_P (NODE) && !TYPE_ALIAS_P (NODE))), \
3507 (TYPE_LANG_SLOT_1 (NODE) = (VAL))) \
3509 #define TI_TEMPLATE(NODE) \
3510 ((struct tree_template_info*)TEMPLATE_INFO_CHECK (NODE))->tmpl
3511 #define TI_ARGS(NODE) \
3512 ((struct tree_template_info*)TEMPLATE_INFO_CHECK (NODE))->args
3513 #define TI_PENDING_TEMPLATE_FLAG(NODE) \
3514 TREE_LANG_FLAG_1 (TEMPLATE_INFO_CHECK (NODE))
3515 /* For a given TREE_VEC containing a template argument list,
3516 this property contains the number of arguments that are not
3518 #define NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) \
3519 TREE_CHAIN (TREE_VEC_CHECK (NODE))
3521 /* Below are the setter and getter of the NON_DEFAULT_TEMPLATE_ARGS_COUNT
3523 #define SET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE, INT_VALUE) \
3524 NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) = build_int_cst (NULL_TREE, INT_VALUE)
3526 #define GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) \
3527 int_cst_value (NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE))
3529 #define GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) \
3530 NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE) \
3531 ? int_cst_value (NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE)) \
3532 : TREE_VEC_LENGTH (INNERMOST_TEMPLATE_ARGS (NODE))
3535 /* The list of access checks that were deferred during parsing
3536 which need to be performed at template instantiation time.
3538 FIXME this should be associated with the TEMPLATE_DECL, not the
3540 #define TI_DEFERRED_ACCESS_CHECKS(NODE) \
3541 ((struct tree_template_info*)TEMPLATE_INFO_CHECK \
3542 (NODE))->deferred_access_checks
3544 /* We use TREE_VECs to hold template arguments. If there is only one
3545 level of template arguments, then the TREE_VEC contains the
3546 arguments directly. If there is more than one level of template
3547 arguments, then each entry in the TREE_VEC is itself a TREE_VEC,
3548 containing the template arguments for a single level. The first
3549 entry in the outer TREE_VEC is the outermost level of template
3550 parameters; the last is the innermost.
3552 It is incorrect to ever form a template argument vector containing
3553 only one level of arguments, but which is a TREE_VEC containing as
3554 its only entry the TREE_VEC for that level.
3556 For each TREE_VEC containing the template arguments for a single
3557 level, it's possible to get or set the number of non defaulted
3558 template arguments by using the accessor macros
3559 GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT or
3560 SET_NON_DEFAULT_TEMPLATE_ARGS_COUNT. */
3562 /* Nonzero if the template arguments is actually a vector of vectors,
3563 rather than just a vector. */
3564 #define TMPL_ARGS_HAVE_MULTIPLE_LEVELS(NODE) \
3565 (NODE && TREE_VEC_LENGTH (NODE) && TREE_VEC_ELT (NODE, 0) \
3566 && TREE_CODE (TREE_VEC_ELT (NODE, 0)) == TREE_VEC)
3568 /* The depth of a template argument vector. When called directly by
3569 the parser, we use a TREE_LIST rather than a TREE_VEC to represent
3570 template arguments. In fact, we may even see NULL_TREE if there
3571 are no template arguments. In both of those cases, there is only
3572 one level of template arguments. */
3573 #define TMPL_ARGS_DEPTH(NODE) \
3574 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (NODE) ? TREE_VEC_LENGTH (NODE) : 1)
3576 /* The LEVELth level of the template ARGS. The outermost level of
3577 args is level 1, not level 0. */
3578 #define TMPL_ARGS_LEVEL(ARGS, LEVEL) \
3579 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (ARGS) \
3580 ? TREE_VEC_ELT (ARGS, (LEVEL) - 1) : (ARGS))
3582 /* Set the LEVELth level of the template ARGS to VAL. This macro does
3583 not work with single-level argument vectors. */
3584 #define SET_TMPL_ARGS_LEVEL(ARGS, LEVEL, VAL) \
3585 (TREE_VEC_ELT (ARGS, (LEVEL) - 1) = (VAL))
3587 /* Accesses the IDXth parameter in the LEVELth level of the ARGS. */
3588 #define TMPL_ARG(ARGS, LEVEL, IDX) \
3589 (TREE_VEC_ELT (TMPL_ARGS_LEVEL (ARGS, LEVEL), IDX))
3591 /* Given a single level of template arguments in NODE, return the
3592 number of arguments. */
3593 #define NUM_TMPL_ARGS(NODE) \
3594 (TREE_VEC_LENGTH (NODE))
3596 /* Returns the innermost level of template arguments in ARGS. */
3597 #define INNERMOST_TEMPLATE_ARGS(NODE) \
3598 (get_innermost_template_args ((NODE), 1))
3600 /* The number of levels of template parameters given by NODE. */
3601 #define TMPL_PARMS_DEPTH(NODE) \
3602 ((HOST_WIDE_INT) TREE_INT_CST_LOW (TREE_PURPOSE (NODE)))
3604 /* The TEMPLATE_DECL instantiated or specialized by NODE. This
3605 TEMPLATE_DECL will be the immediate parent, not the most general
3606 template. For example, in:
3608 template <class T> struct S { template <class U> void f(U); }
3610 the FUNCTION_DECL for S<int>::f<double> will have, as its
3611 DECL_TI_TEMPLATE, `template <class U> S<int>::f<U>'.
3613 As a special case, for a member friend template of a template
3614 class, this value will not be a TEMPLATE_DECL, but rather an
3615 IDENTIFIER_NODE or OVERLOAD indicating the name of the template and
3616 any explicit template arguments provided. For example, in:
3618 template <class T> struct S { friend void f<int>(int, double); }
3620 the DECL_TI_TEMPLATE will be an IDENTIFIER_NODE for `f' and the
3621 DECL_TI_ARGS will be {int}.
3623 For a FIELD_DECL with a non-static data member initializer, this value
3624 is the FIELD_DECL it was instantiated from. */
3625 #define DECL_TI_TEMPLATE(NODE) TI_TEMPLATE (DECL_TEMPLATE_INFO (NODE))
3627 /* The template arguments used to obtain this decl from the most
3628 general form of DECL_TI_TEMPLATE. For the example given for
3629 DECL_TI_TEMPLATE, the DECL_TI_ARGS will be {int, double}. These
3630 are always the full set of arguments required to instantiate this
3631 declaration from the most general template specialized here. */
3632 #define DECL_TI_ARGS(NODE) TI_ARGS (DECL_TEMPLATE_INFO (NODE))
3634 /* The TEMPLATE_DECL associated with NODE, a class type. Even if NODE
3635 will be generated from a partial specialization, the TEMPLATE_DECL
3636 referred to here will be the original template. For example,
3639 template <typename T> struct S {};
3640 template <typename T> struct S<T*> {};
3642 the CLASSTPYE_TI_TEMPLATE for S<int*> will be S, not the S<T*>.
3644 For a member class template, CLASSTYPE_TI_TEMPLATE always refers to the
3645 partial instantiation rather than the primary template. CLASSTYPE_TI_ARGS
3646 are for the primary template if the partial instantiation isn't
3647 specialized, or for the explicit specialization if it is, e.g.
3649 template <class T> class C { template <class U> class D; }
3650 template <> template <class U> class C<int>::D; */
3651 #define CLASSTYPE_TI_TEMPLATE(NODE) TI_TEMPLATE (CLASSTYPE_TEMPLATE_INFO (NODE))
3652 #define CLASSTYPE_TI_ARGS(NODE) TI_ARGS (CLASSTYPE_TEMPLATE_INFO (NODE))
3654 /* For a template instantiation TYPE, returns the TYPE corresponding
3655 to the primary template. Otherwise returns TYPE itself. */
3656 #define CLASSTYPE_PRIMARY_TEMPLATE_TYPE(TYPE) \
3657 ((CLASSTYPE_USE_TEMPLATE ((TYPE)) \
3658 && !CLASSTYPE_TEMPLATE_SPECIALIZATION ((TYPE))) \
3659 ? TREE_TYPE (DECL_TEMPLATE_RESULT (DECL_PRIMARY_TEMPLATE \
3660 (CLASSTYPE_TI_TEMPLATE ((TYPE))))) \
3663 /* Like CLASS_TI_TEMPLATE, but also works for ENUMERAL_TYPEs. */
3664 #define TYPE_TI_TEMPLATE(NODE) \
3665 (TI_TEMPLATE (TYPE_TEMPLATE_INFO (NODE)))
3667 /* Like DECL_TI_ARGS, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */
3668 #define TYPE_TI_ARGS(NODE) \
3669 (TI_ARGS (TYPE_TEMPLATE_INFO (NODE)))
3671 #define INNERMOST_TEMPLATE_PARMS(NODE) TREE_VALUE (NODE)
3673 /* Nonzero if NODE (a TEMPLATE_DECL) is a member template, in the
3674 sense of [temp.mem]. */
3675 #define DECL_MEMBER_TEMPLATE_P(NODE) \
3676 (DECL_LANG_FLAG_1 (TEMPLATE_DECL_CHECK (NODE)))
3678 /* Nonzero if the NODE corresponds to the template parameters for a
3679 member template, whose inline definition is being processed after
3680 the class definition is complete. */
3681 #define TEMPLATE_PARMS_FOR_INLINE(NODE) TREE_LANG_FLAG_1 (NODE)
3683 /* Determine if a declaration (PARM_DECL or FIELD_DECL) is a pack. */
3684 #define DECL_PACK_P(NODE) \
3685 (DECL_P (NODE) && PACK_EXPANSION_P (TREE_TYPE (NODE)))
3687 /* Determines if NODE is an expansion of one or more parameter packs,
3688 e.g., a TYPE_PACK_EXPANSION or EXPR_PACK_EXPANSION. */
3689 #define PACK_EXPANSION_P(NODE) \
3690 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION \
3691 || TREE_CODE (NODE) == EXPR_PACK_EXPANSION)
3693 /* Extracts the type or expression pattern from a TYPE_PACK_EXPANSION or
3694 EXPR_PACK_EXPANSION. */
3695 #define PACK_EXPANSION_PATTERN(NODE) \
3696 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION ? TREE_TYPE (NODE) \
3697 : TREE_OPERAND (NODE, 0))
3699 /* Sets the type or expression pattern for a TYPE_PACK_EXPANSION or
3700 EXPR_PACK_EXPANSION. */
3701 #define SET_PACK_EXPANSION_PATTERN(NODE,VALUE) \
3702 if (TREE_CODE (NODE) == TYPE_PACK_EXPANSION) \
3703 TREE_TYPE (NODE) = VALUE; \
3705 TREE_OPERAND (NODE, 0) = VALUE
3707 /* The list of parameter packs used in the PACK_EXPANSION_* node. The
3708 TREE_VALUE of each TREE_LIST contains the parameter packs. */
3709 #define PACK_EXPANSION_PARAMETER_PACKS(NODE) \
3710 *(TREE_CODE (NODE) == EXPR_PACK_EXPANSION \
3711 ? &TREE_OPERAND (NODE, 1) \
3712 : &TYPE_MIN_VALUE_RAW (TYPE_PACK_EXPANSION_CHECK (NODE)))
3714 /* Any additional template args to be applied when substituting into
3715 the pattern, set by tsubst_pack_expansion for partial instantiations.
3716 If this is a TREE_LIST, the TREE_VALUE of the first element is the
3717 usual template argument TREE_VEC, and the TREE_PURPOSE of later elements
3718 are enclosing functions that provided function parameter packs we'll need
3719 to map appropriately. */
3720 #define PACK_EXPANSION_EXTRA_ARGS(NODE) \
3721 *(TREE_CODE (NODE) == TYPE_PACK_EXPANSION \
3722 ? &TYPE_MAX_VALUE_RAW (NODE) \
3723 : &TREE_OPERAND ((NODE), 2))
3725 /* True iff this pack expansion is within a function context. */
3726 #define PACK_EXPANSION_LOCAL_P(NODE) TREE_LANG_FLAG_0 (NODE)
3728 /* True iff this pack expansion is for sizeof.... */
3729 #define PACK_EXPANSION_SIZEOF_P(NODE) TREE_LANG_FLAG_1 (NODE)
3731 /* True iff the wildcard can match a template parameter pack. */
3732 #define WILDCARD_PACK_P(NODE) TREE_LANG_FLAG_0 (NODE)
3734 /* Determine if this is an argument pack. */
3735 #define ARGUMENT_PACK_P(NODE) \
3736 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK \
3737 || TREE_CODE (NODE) == NONTYPE_ARGUMENT_PACK)
3739 /* The arguments stored in an argument pack. Arguments are stored in a
3740 TREE_VEC, which may have length zero. */
3741 #define ARGUMENT_PACK_ARGS(NODE) \
3742 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK? TREE_TYPE (NODE) \
3743 : TREE_OPERAND (NODE, 0))
3745 /* Set the arguments stored in an argument pack. VALUE must be a
3747 #define SET_ARGUMENT_PACK_ARGS(NODE,VALUE) \
3748 if (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK) \
3749 TREE_TYPE (NODE) = VALUE; \
3751 TREE_OPERAND (NODE, 0) = VALUE
3753 /* Whether the argument pack is "incomplete", meaning that more
3754 arguments can still be deduced. Incomplete argument packs are only
3755 used when the user has provided an explicit template argument list
3756 for a variadic function template. Some of the explicit template
3757 arguments will be placed into the beginning of the argument pack,
3758 but additional arguments might still be deduced. */
3759 #define ARGUMENT_PACK_INCOMPLETE_P(NODE) \
3760 TREE_ADDRESSABLE (ARGUMENT_PACK_ARGS (NODE))
3762 /* When ARGUMENT_PACK_INCOMPLETE_P, stores the explicit template
3763 arguments used to fill this pack. */
3764 #define ARGUMENT_PACK_EXPLICIT_ARGS(NODE) \
3765 TREE_TYPE (ARGUMENT_PACK_ARGS (NODE))
3767 /* In an ARGUMENT_PACK_SELECT, the argument pack from which an
3768 argument will be selected. */
3769 #define ARGUMENT_PACK_SELECT_FROM_PACK(NODE) \
3770 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->argument_pack)
3772 /* In an ARGUMENT_PACK_SELECT, the index of the argument we want to
3774 #define ARGUMENT_PACK_SELECT_INDEX(NODE) \
3775 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->index)
3777 #define FOLD_EXPR_CHECK(NODE) \
3778 TREE_CHECK4 (NODE, UNARY_LEFT_FOLD_EXPR, UNARY_RIGHT_FOLD_EXPR, \
3779 BINARY_LEFT_FOLD_EXPR, BINARY_RIGHT_FOLD_EXPR)
3781 #define BINARY_FOLD_EXPR_CHECK(NODE) \
3782 TREE_CHECK2 (NODE, BINARY_LEFT_FOLD_EXPR, BINARY_RIGHT_FOLD_EXPR)
3784 /* True if NODE is UNARY_FOLD_EXPR or a BINARY_FOLD_EXPR */
3785 #define FOLD_EXPR_P(NODE) \
3786 (TREE_CODE (NODE) == UNARY_LEFT_FOLD_EXPR \
3787 || TREE_CODE (NODE) == UNARY_RIGHT_FOLD_EXPR \
3788 || TREE_CODE (NODE) == BINARY_LEFT_FOLD_EXPR \
3789 || TREE_CODE (NODE) == BINARY_RIGHT_FOLD_EXPR)
3791 /* True when NODE is a fold over a compound assignment operator. */
3792 #define FOLD_EXPR_MODIFY_P(NODE) \
3793 TREE_LANG_FLAG_0 (FOLD_EXPR_CHECK (NODE))
3795 /* An INTEGER_CST containing the tree code of the folded operator. */
3796 #define FOLD_EXPR_OP(NODE) \
3797 TREE_OPERAND (FOLD_EXPR_CHECK (NODE), 0)
3799 /* The expression containing an unexpanded parameter pack. */
3800 #define FOLD_EXPR_PACK(NODE) \
3801 TREE_OPERAND (FOLD_EXPR_CHECK (NODE), 1)
3803 /* In a binary fold expression, the argument with no unexpanded
3805 #define FOLD_EXPR_INIT(NODE) \
3806 TREE_OPERAND (BINARY_FOLD_EXPR_CHECK (NODE), 2)
3808 /* In a FUNCTION_DECL, the saved auto-return pattern. */
3809 #define DECL_SAVED_AUTO_RETURN_TYPE(NODE) \
3810 (LANG_DECL_FN_CHECK (FUNCTION_DECL_CHECK (NODE)) \
3811 ->u.saved_auto_return_type)
3813 /* True if NODE is an implicit INDIRECT_REF from convert_from_reference. */
3814 #define REFERENCE_REF_P(NODE) \
3815 (INDIRECT_REF_P (NODE) \
3816 && TREE_TYPE (TREE_OPERAND (NODE, 0)) \
3817 && TYPE_REF_P (TREE_TYPE (TREE_OPERAND ((NODE), 0))))
3819 /* True iff this represents an lvalue being treated as an rvalue during return
3820 or throw as per [class.copy.elision]. */
3821 #define IMPLICIT_RVALUE_P(NODE) \
3822 TREE_LANG_FLAG_3 (TREE_CHECK2 ((NODE), NON_LVALUE_EXPR, STATIC_CAST_EXPR))
3824 #define NEW_EXPR_USE_GLOBAL(NODE) \
3825 TREE_LANG_FLAG_0 (NEW_EXPR_CHECK (NODE))
3826 #define DELETE_EXPR_USE_GLOBAL(NODE) \
3827 TREE_LANG_FLAG_0 (DELETE_EXPR_CHECK (NODE))
3828 #define DELETE_EXPR_USE_VEC(NODE) \
3829 TREE_LANG_FLAG_1 (DELETE_EXPR_CHECK (NODE))
3831 #define CALL_OR_AGGR_INIT_CHECK(NODE) \
3832 TREE_CHECK2 ((NODE), CALL_EXPR, AGGR_INIT_EXPR)
3834 /* Indicates that this is a non-dependent COMPOUND_EXPR which will
3835 resolve to a function call. */
3836 #define COMPOUND_EXPR_OVERLOADED(NODE) \
3837 TREE_LANG_FLAG_0 (COMPOUND_EXPR_CHECK (NODE))
3839 /* In a CALL_EXPR appearing in a template, true if Koenig lookup
3840 should be performed at instantiation time. */
3841 #define KOENIG_LOOKUP_P(NODE) TREE_LANG_FLAG_0 (CALL_EXPR_CHECK (NODE))
3843 /* In a CALL_EXPR, true for allocator calls from new or delete
3845 #define CALL_FROM_NEW_OR_DELETE_P(NODE) \
3846 TREE_LANG_FLAG_2 (CALL_EXPR_CHECK (NODE))
3848 /* True if the arguments to NODE should be evaluated in left-to-right
3849 order regardless of PUSH_ARGS_REVERSED. */
3850 #define CALL_EXPR_ORDERED_ARGS(NODE) \
3851 TREE_LANG_FLAG_3 (CALL_OR_AGGR_INIT_CHECK (NODE))
3853 /* True if the arguments to NODE should be evaluated in right-to-left
3854 order regardless of PUSH_ARGS_REVERSED. */
3855 #define CALL_EXPR_REVERSE_ARGS(NODE) \
3856 TREE_LANG_FLAG_5 (CALL_OR_AGGR_INIT_CHECK (NODE))
3858 /* True if CALL_EXPR was written as an operator expression, not a function
3860 #define CALL_EXPR_OPERATOR_SYNTAX(NODE) \
3861 TREE_LANG_FLAG_6 (CALL_OR_AGGR_INIT_CHECK (NODE))
3863 /* Indicates whether a string literal has been parenthesized. Such
3864 usages are disallowed in certain circumstances. */
3866 #define PAREN_STRING_LITERAL_P(NODE) \
3867 TREE_LANG_FLAG_0 (STRING_CST_CHECK (NODE))
3869 /* Indicates whether a COMPONENT_REF or a SCOPE_REF has been parenthesized, or
3870 an INDIRECT_REF comes from parenthesizing a _DECL. Currently only set some
3871 of the time in C++14 mode. */
3873 #define REF_PARENTHESIZED_P(NODE) \
3874 TREE_LANG_FLAG_2 (TREE_CHECK4 ((NODE), COMPONENT_REF, INDIRECT_REF, SCOPE_REF, VIEW_CONVERT_EXPR))
3876 /* Nonzero if this AGGR_INIT_EXPR provides for initialization via a
3877 constructor call, rather than an ordinary function call. */
3878 #define AGGR_INIT_VIA_CTOR_P(NODE) \
3879 TREE_LANG_FLAG_0 (AGGR_INIT_EXPR_CHECK (NODE))
3881 /* Nonzero if expanding this AGGR_INIT_EXPR should first zero-initialize
3883 #define AGGR_INIT_ZERO_FIRST(NODE) \
3884 TREE_LANG_FLAG_2 (AGGR_INIT_EXPR_CHECK (NODE))
3886 /* Nonzero means that the call is the jump from a thunk to the
3887 thunked-to function. */
3888 #define AGGR_INIT_FROM_THUNK_P(NODE) \
3889 (AGGR_INIT_EXPR_CHECK (NODE)->base.protected_flag)
3891 /* AGGR_INIT_EXPR accessors. These are equivalent to the CALL_EXPR
3892 accessors, except for AGGR_INIT_EXPR_SLOT (which takes the place of
3893 CALL_EXPR_STATIC_CHAIN). */
3895 #define AGGR_INIT_EXPR_FN(NODE) TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 1)
3896 #define AGGR_INIT_EXPR_SLOT(NODE) \
3897 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 2)
3898 #define AGGR_INIT_EXPR_ARG(NODE, I) \
3899 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), (I) + 3)
3900 #define aggr_init_expr_nargs(NODE) (VL_EXP_OPERAND_LENGTH(NODE) - 3)
3902 /* AGGR_INIT_EXPR_ARGP returns a pointer to the argument vector for NODE.
3903 We can't use &AGGR_INIT_EXPR_ARG (NODE, 0) because that will complain if
3904 the argument count is zero when checking is enabled. Instead, do
3905 the pointer arithmetic to advance past the 3 fixed operands in a
3906 AGGR_INIT_EXPR. That produces a valid pointer to just past the end of
3907 the operand array, even if it's not valid to dereference it. */
3908 #define AGGR_INIT_EXPR_ARGP(NODE) \
3909 (&(TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 0)) + 3)
3911 /* Abstract iterators for AGGR_INIT_EXPRs. */
3913 /* Structure containing iterator state. */
3914 struct aggr_init_expr_arg_iterator
{
3915 tree t
; /* the aggr_init_expr */
3916 int n
; /* argument count */
3917 int i
; /* next argument index */
3920 /* Initialize the abstract argument list iterator object ITER with the
3921 arguments from AGGR_INIT_EXPR node EXP. */
3923 init_aggr_init_expr_arg_iterator (tree exp
,
3924 aggr_init_expr_arg_iterator
*iter
)
3927 iter
->n
= aggr_init_expr_nargs (exp
);
3931 /* Return the next argument from abstract argument list iterator object ITER,
3932 and advance its state. Return NULL_TREE if there are no more arguments. */
3934 next_aggr_init_expr_arg (aggr_init_expr_arg_iterator
*iter
)
3937 if (iter
->i
>= iter
->n
)
3939 result
= AGGR_INIT_EXPR_ARG (iter
->t
, iter
->i
);
3944 /* Initialize the abstract argument list iterator object ITER, then advance
3945 past and return the first argument. Useful in for expressions, e.g.
3946 for (arg = first_aggr_init_expr_arg (exp, &iter); arg;
3947 arg = next_aggr_init_expr_arg (&iter)) */
3949 first_aggr_init_expr_arg (tree exp
, aggr_init_expr_arg_iterator
*iter
)
3951 init_aggr_init_expr_arg_iterator (exp
, iter
);
3952 return next_aggr_init_expr_arg (iter
);
3955 /* Test whether there are more arguments in abstract argument list iterator
3956 ITER, without changing its state. */
3958 more_aggr_init_expr_args_p (const aggr_init_expr_arg_iterator
*iter
)
3960 return (iter
->i
< iter
->n
);
3963 /* Iterate through each argument ARG of AGGR_INIT_EXPR CALL, using variable
3964 ITER (of type aggr_init_expr_arg_iterator) to hold the iteration state. */
3965 #define FOR_EACH_AGGR_INIT_EXPR_ARG(arg, iter, call) \
3966 for ((arg) = first_aggr_init_expr_arg ((call), &(iter)); (arg); \
3967 (arg) = next_aggr_init_expr_arg (&(iter)))
3969 /* VEC_INIT_EXPR accessors. */
3970 #define VEC_INIT_EXPR_SLOT(NODE) TREE_OPERAND (VEC_INIT_EXPR_CHECK (NODE), 0)
3971 #define VEC_INIT_EXPR_INIT(NODE) TREE_OPERAND (VEC_INIT_EXPR_CHECK (NODE), 1)
3973 /* Indicates that a VEC_INIT_EXPR is a potential constant expression.
3974 Only set when the current function is constexpr. */
3975 #define VEC_INIT_EXPR_IS_CONSTEXPR(NODE) \
3976 TREE_LANG_FLAG_0 (VEC_INIT_EXPR_CHECK (NODE))
3978 /* Indicates that a VEC_INIT_EXPR is expressing value-initialization. */
3979 #define VEC_INIT_EXPR_VALUE_INIT(NODE) \
3980 TREE_LANG_FLAG_1 (VEC_INIT_EXPR_CHECK (NODE))
3982 /* The condition under which this MUST_NOT_THROW_EXPR actually blocks
3983 exceptions. NULL_TREE means 'true'. */
3984 #define MUST_NOT_THROW_COND(NODE) \
3985 TREE_OPERAND (MUST_NOT_THROW_EXPR_CHECK (NODE), 1)
3987 /* The TYPE_MAIN_DECL for a class template type is a TYPE_DECL, not a
3988 TEMPLATE_DECL. This macro determines whether or not a given class
3989 type is really a template type, as opposed to an instantiation or
3990 specialization of one. */
3991 #define CLASSTYPE_IS_TEMPLATE(NODE) \
3992 (CLASSTYPE_TEMPLATE_INFO (NODE) \
3993 && !CLASSTYPE_USE_TEMPLATE (NODE) \
3994 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE)))
3996 /* The name used by the user to name the typename type. Typically,
3997 this is an IDENTIFIER_NODE, and the same as the DECL_NAME on the
3998 corresponding TYPE_DECL. However, this may also be a
3999 TEMPLATE_ID_EXPR if we had something like `typename X::Y<T>'. */
4000 #define TYPENAME_TYPE_FULLNAME(NODE) \
4001 (TYPE_VALUES_RAW (TYPENAME_TYPE_CHECK (NODE)))
4003 /* True if a TYPENAME_TYPE was declared as an "enum". */
4004 #define TYPENAME_IS_ENUM_P(NODE) \
4005 (TREE_LANG_FLAG_0 (TYPENAME_TYPE_CHECK (NODE)))
4007 /* True if a TYPENAME_TYPE was declared as a "class", "struct", or
4009 #define TYPENAME_IS_CLASS_P(NODE) \
4010 (TREE_LANG_FLAG_1 (TYPENAME_TYPE_CHECK (NODE)))
4012 /* True if a TYPENAME_TYPE is in the process of being resolved. */
4013 #define TYPENAME_IS_RESOLVING_P(NODE) \
4014 (TREE_LANG_FLAG_2 (TYPENAME_TYPE_CHECK (NODE)))
4018 A class that declares or inherits a virtual function is called a
4019 polymorphic class. */
4020 #define TYPE_POLYMORPHIC_P(NODE) (TREE_LANG_FLAG_2 (NODE))
4022 /* Nonzero if this class has a virtual function table pointer. */
4023 #define TYPE_CONTAINS_VPTR_P(NODE) \
4024 (TYPE_POLYMORPHIC_P (NODE) || CLASSTYPE_VBASECLASSES (NODE))
4026 /* Nonzero if NODE is a FUNCTION_DECL or VARIABLE_DECL (for a decl
4027 with namespace scope) declared in a local scope. */
4028 #define DECL_LOCAL_DECL_P(NODE) \
4029 DECL_LANG_FLAG_0 (VAR_OR_FUNCTION_DECL_CHECK (NODE))
4031 /* Nonzero if NODE is the target for genericization of 'break' stmts. */
4032 #define LABEL_DECL_BREAK(NODE) \
4033 DECL_LANG_FLAG_0 (LABEL_DECL_CHECK (NODE))
4035 /* Nonzero if NODE is the target for genericization of 'continue' stmts. */
4036 #define LABEL_DECL_CONTINUE(NODE) \
4037 DECL_LANG_FLAG_1 (LABEL_DECL_CHECK (NODE))
4039 /* Nonzero if NODE is the target for genericization of 'return' stmts
4040 in constructors/destructors of targetm.cxx.cdtor_returns_this targets. */
4041 #define LABEL_DECL_CDTOR(NODE) \
4042 DECL_LANG_FLAG_2 (LABEL_DECL_CHECK (NODE))
4044 /* True if NODE was declared with auto in its return type, but it has
4045 started compilation and so the return type might have been changed by
4046 return type deduction; its declared return type should be found in
4047 DECL_SAVED_AUTO_RETURN_TYPE (NODE). */
4048 #define FNDECL_USED_AUTO(NODE) \
4049 TREE_LANG_FLAG_2 (FUNCTION_DECL_CHECK (NODE))
4051 /* Nonzero if NODE is a DECL which we know about but which has not
4052 been explicitly declared, such as a built-in function or a friend
4053 declared inside a class. In the latter case DECL_HIDDEN_FRIEND_P
4055 #define DECL_ANTICIPATED(NODE) \
4056 (DECL_LANG_SPECIFIC (TYPE_FUNCTION_OR_TEMPLATE_DECL_CHECK (NODE)) \
4057 ->u.base.anticipated_p)
4059 /* Is DECL NODE a hidden name? */
4060 #define DECL_HIDDEN_P(NODE) \
4061 (DECL_LANG_SPECIFIC (NODE) && TYPE_FUNCTION_OR_TEMPLATE_DECL_P (NODE) \
4062 && DECL_ANTICIPATED (NODE))
4064 /* True if this is a hidden class type. */
4065 #define TYPE_HIDDEN_P(NODE) \
4066 (DECL_LANG_SPECIFIC (TYPE_NAME (NODE)) \
4067 && DECL_ANTICIPATED (TYPE_NAME (NODE)))
4069 /* True for artificial decls added for OpenMP privatized non-static
4071 #define DECL_OMP_PRIVATIZED_MEMBER(NODE) \
4072 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))->u.base.anticipated_p)
4074 /* Nonzero if NODE is a FUNCTION_DECL which was declared as a friend
4075 within a class but has not been declared in the surrounding scope.
4076 The function is invisible except via argument dependent lookup. */
4077 #define DECL_HIDDEN_FRIEND_P(NODE) \
4078 (LANG_DECL_FN_CHECK (DECL_COMMON_CHECK (NODE))->hidden_friend_p)
4080 /* Nonzero if NODE is an artificial FUNCTION_DECL for
4081 #pragma omp declare reduction. */
4082 #define DECL_OMP_DECLARE_REDUCTION_P(NODE) \
4083 (LANG_DECL_FN_CHECK (DECL_COMMON_CHECK (NODE))->omp_declare_reduction_p)
4085 /* Nonzero if DECL has been declared threadprivate by
4086 #pragma omp threadprivate. */
4087 #define CP_DECL_THREADPRIVATE_P(DECL) \
4088 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (DECL))->u.base.threadprivate_or_deleted_p)
4090 /* Nonzero if NODE is a VAR_DECL which has been declared inline. */
4091 #define DECL_VAR_DECLARED_INLINE_P(NODE) \
4092 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE)) \
4093 ? DECL_LANG_SPECIFIC (NODE)->u.base.var_declared_inline_p \
4095 #define SET_DECL_VAR_DECLARED_INLINE_P(NODE) \
4096 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))->u.base.var_declared_inline_p \
4099 /* True if NODE is a constant variable with a value-dependent initializer. */
4100 #define DECL_DEPENDENT_INIT_P(NODE) \
4101 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE)) \
4102 && DECL_LANG_SPECIFIC (NODE)->u.base.dependent_init_p)
4103 #define SET_DECL_DEPENDENT_INIT_P(NODE, X) \
4104 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))->u.base.dependent_init_p = (X))
4106 /* Nonzero if NODE is an artificial VAR_DECL for a C++17 structured binding
4107 declaration or one of VAR_DECLs for the user identifiers in it. */
4108 #define DECL_DECOMPOSITION_P(NODE) \
4109 (VAR_P (NODE) && DECL_LANG_SPECIFIC (NODE) \
4110 ? DECL_LANG_SPECIFIC (NODE)->u.base.selector == lds_decomp \
4113 /* The underlying artificial VAR_DECL for structured binding. */
4114 #define DECL_DECOMP_BASE(NODE) \
4115 (LANG_DECL_DECOMP_CHECK (NODE)->base)
4117 /* Nonzero if NODE is an inline VAR_DECL. In C++17, static data members
4118 declared with constexpr specifier are implicitly inline variables. */
4119 #define DECL_INLINE_VAR_P(NODE) \
4120 (DECL_VAR_DECLARED_INLINE_P (NODE) \
4121 || (cxx_dialect >= cxx17 \
4122 && DECL_DECLARED_CONSTEXPR_P (NODE) \
4123 && DECL_CLASS_SCOPE_P (NODE)))
4125 /* Nonzero if DECL was declared with '= delete'. */
4126 #define DECL_DELETED_FN(DECL) \
4127 (LANG_DECL_FN_CHECK (DECL)->min.base.threadprivate_or_deleted_p)
4129 /* Nonzero if DECL was declared with '= default' (maybe implicitly). */
4130 #define DECL_DEFAULTED_FN(DECL) \
4131 (LANG_DECL_FN_CHECK (DECL)->defaulted_p)
4133 /* Nonzero if DECL is explicitly defaulted in the class body. */
4134 #define DECL_DEFAULTED_IN_CLASS_P(DECL) \
4135 (DECL_DEFAULTED_FN (DECL) && DECL_INITIALIZED_IN_CLASS_P (DECL))
4136 /* Nonzero if DECL was defaulted outside the class body. */
4137 #define DECL_DEFAULTED_OUTSIDE_CLASS_P(DECL) \
4138 (DECL_DEFAULTED_FN (DECL) \
4139 && !(DECL_ARTIFICIAL (DECL) || DECL_INITIALIZED_IN_CLASS_P (DECL)))
4141 /* Record whether a typedef for type `int' was actually `signed int'. */
4142 #define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP)
4144 /* Returns nonzero if DECL has external linkage, as specified by the
4145 language standard. (This predicate may hold even when the
4146 corresponding entity is not actually given external linkage in the
4147 object file; see decl_linkage for details.) */
4148 #define DECL_EXTERNAL_LINKAGE_P(DECL) \
4149 (decl_linkage (DECL) == lk_external)
4151 /* Keep these codes in ascending code order. */
4153 #define INTEGRAL_CODE_P(CODE) \
4154 ((CODE) == ENUMERAL_TYPE \
4155 || (CODE) == BOOLEAN_TYPE \
4156 || (CODE) == INTEGER_TYPE)
4158 /* [basic.fundamental]
4160 Types bool, char, wchar_t, and the signed and unsigned integer types
4161 are collectively called integral types.
4163 Note that INTEGRAL_TYPE_P, as defined in tree.h, allows enumeration
4164 types as well, which is incorrect in C++. Keep these checks in
4165 ascending code order. */
4166 #define CP_INTEGRAL_TYPE_P(TYPE) \
4167 (TREE_CODE (TYPE) == BOOLEAN_TYPE \
4168 || TREE_CODE (TYPE) == INTEGER_TYPE)
4170 /* Returns true if TYPE is an integral or enumeration name. Keep
4171 these checks in ascending code order. */
4172 #define INTEGRAL_OR_ENUMERATION_TYPE_P(TYPE) \
4173 (TREE_CODE (TYPE) == ENUMERAL_TYPE || CP_INTEGRAL_TYPE_P (TYPE))
4175 /* Returns true if TYPE is an integral or unscoped enumeration type. */
4176 #define INTEGRAL_OR_UNSCOPED_ENUMERATION_TYPE_P(TYPE) \
4177 (UNSCOPED_ENUM_P (TYPE) || CP_INTEGRAL_TYPE_P (TYPE))
4179 /* True if the class type TYPE is a literal type. */
4180 #define CLASSTYPE_LITERAL_P(TYPE) \
4181 (LANG_TYPE_CLASS_CHECK (TYPE)->is_literal)
4183 /* [basic.fundamental]
4185 Integral and floating types are collectively called arithmetic
4188 As a GNU extension, we also accept complex types.
4190 Keep these checks in ascending code order. */
4191 #define ARITHMETIC_TYPE_P(TYPE) \
4192 (CP_INTEGRAL_TYPE_P (TYPE) \
4193 || TREE_CODE (TYPE) == REAL_TYPE \
4194 || TREE_CODE (TYPE) == COMPLEX_TYPE)
4196 /* True iff TYPE is cv decltype(nullptr). */
4197 #define NULLPTR_TYPE_P(TYPE) (TREE_CODE (TYPE) == NULLPTR_TYPE)
4201 Arithmetic types, enumeration types, pointer types,
4202 pointer-to-member types, and std::nullptr_t are collectively called
4205 Keep these checks in ascending code order. */
4206 #define SCALAR_TYPE_P(TYPE) \
4207 (TYPE_PTRDATAMEM_P (TYPE) \
4208 || TREE_CODE (TYPE) == ENUMERAL_TYPE \
4209 || ARITHMETIC_TYPE_P (TYPE) \
4210 || TYPE_PTR_P (TYPE) \
4211 || TYPE_PTRMEMFUNC_P (TYPE) \
4212 || NULLPTR_TYPE_P (TYPE))
4214 /* Determines whether this type is a C++0x scoped enumeration
4215 type. Scoped enumerations types are introduced via "enum class" or
4216 "enum struct", e.g.,
4222 Scoped enumeration types are different from normal (unscoped)
4223 enumeration types in several ways:
4225 - The enumerators of a scoped enumeration type are only available
4226 within the scope of the enumeration type and not in the
4227 enclosing scope. For example, the Red color can be referred to
4228 with "Color::Red" but not "Red".
4230 - Scoped enumerators and enumerations do not implicitly convert
4231 to integers or 'bool'.
4233 - The underlying type of the enum is well-defined. */
4234 #define SCOPED_ENUM_P(TYPE) \
4235 (TREE_CODE (TYPE) == ENUMERAL_TYPE && ENUM_IS_SCOPED (TYPE))
4237 /* Determine whether this is an unscoped enumeration type. */
4238 #define UNSCOPED_ENUM_P(TYPE) \
4239 (TREE_CODE (TYPE) == ENUMERAL_TYPE && !ENUM_IS_SCOPED (TYPE))
4241 /* Set the flag indicating whether an ENUMERAL_TYPE is a C++0x scoped
4242 enumeration type (1) or a normal (unscoped) enumeration type
4244 #define SET_SCOPED_ENUM_P(TYPE, VAL) \
4245 (ENUM_IS_SCOPED (TYPE) = (VAL))
4247 #define SET_OPAQUE_ENUM_P(TYPE, VAL) \
4248 (ENUM_IS_OPAQUE (TYPE) = (VAL))
4250 #define OPAQUE_ENUM_P(TYPE) \
4251 (TREE_CODE (TYPE) == ENUMERAL_TYPE && ENUM_IS_OPAQUE (TYPE))
4253 /* Determines whether an ENUMERAL_TYPE has an explicit
4255 #define ENUM_FIXED_UNDERLYING_TYPE_P(NODE) (TYPE_LANG_FLAG_5 (NODE))
4257 /* Returns the underlying type of the given enumeration type. The
4258 underlying type is determined in different ways, depending on the
4259 properties of the enum:
4261 - In C++0x, the underlying type can be explicitly specified, e.g.,
4263 enum E1 : char { ... } // underlying type is char
4265 - In a C++0x scoped enumeration, the underlying type is int
4266 unless otherwises specified:
4268 enum class E2 { ... } // underlying type is int
4270 - Otherwise, the underlying type is determined based on the
4271 values of the enumerators. In this case, the
4272 ENUM_UNDERLYING_TYPE will not be set until after the definition
4273 of the enumeration is completed by finish_enum. */
4274 #define ENUM_UNDERLYING_TYPE(TYPE) \
4275 TREE_TYPE (ENUMERAL_TYPE_CHECK (TYPE))
4279 An aggregate is an array or a class with no user-provided
4280 constructors, no brace-or-equal-initializers for non-static data
4281 members, no private or protected non-static data members, no
4282 base classes, and no virtual functions.
4284 As an extension, we also treat vectors as aggregates. Keep these
4285 checks in ascending code order. */
4286 #define CP_AGGREGATE_TYPE_P(TYPE) \
4287 (gnu_vector_type_p (TYPE) \
4288 || TREE_CODE (TYPE) == ARRAY_TYPE \
4289 || (CLASS_TYPE_P (TYPE) && COMPLETE_TYPE_P (TYPE) && !CLASSTYPE_NON_AGGREGATE (TYPE)))
4291 /* Nonzero for a class type means that the class type has a
4292 user-declared constructor. */
4293 #define TYPE_HAS_USER_CONSTRUCTOR(NODE) (TYPE_LANG_FLAG_1 (NODE))
4295 /* Nonzero means that the FUNCTION_TYPE or METHOD_TYPE has a
4296 late-specified return type. */
4297 #define TYPE_HAS_LATE_RETURN_TYPE(NODE) \
4298 (TYPE_LANG_FLAG_2 (FUNC_OR_METHOD_CHECK (NODE)))
4300 /* When appearing in an INDIRECT_REF, it means that the tree structure
4301 underneath is actually a call to a constructor. This is needed
4302 when the constructor must initialize local storage (which can
4303 be automatically destroyed), rather than allowing it to allocate
4304 space from the heap.
4306 When appearing in a SAVE_EXPR, it means that underneath
4307 is a call to a constructor.
4309 When appearing in a CONSTRUCTOR, the expression is a
4312 When appearing in a FIELD_DECL, it means that this field
4313 has been duly initialized in its constructor. */
4314 #define TREE_HAS_CONSTRUCTOR(NODE) (TREE_LANG_FLAG_4 (NODE))
4316 /* True if NODE is a brace-enclosed initializer. */
4317 #define BRACE_ENCLOSED_INITIALIZER_P(NODE) \
4318 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_TYPE (NODE) == init_list_type_node)
4320 /* True if NODE is a compound-literal, i.e., a brace-enclosed
4321 initializer cast to a particular type. */
4322 #define COMPOUND_LITERAL_P(NODE) \
4323 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_HAS_CONSTRUCTOR (NODE))
4325 #define EMPTY_CONSTRUCTOR_P(NODE) (TREE_CODE (NODE) == CONSTRUCTOR \
4326 && vec_safe_is_empty(CONSTRUCTOR_ELTS(NODE))\
4327 && !TREE_HAS_CONSTRUCTOR (NODE))
4329 /* True if NODE is a init-list used as a direct-initializer, i.e.
4330 B b{1,2}, not B b({1,2}) or B b = {1,2}. */
4331 #define CONSTRUCTOR_IS_DIRECT_INIT(NODE) (TREE_LANG_FLAG_0 (CONSTRUCTOR_CHECK (NODE)))
4333 /* True if this CONSTRUCTOR is instantiation-dependent and needs to be
4335 #define CONSTRUCTOR_IS_DEPENDENT(NODE) \
4336 (TREE_LANG_FLAG_1 (CONSTRUCTOR_CHECK (NODE)))
4338 /* True if this CONSTRUCTOR should not be used as a variable initializer
4339 because it was loaded from a constexpr variable with mutable fields. */
4340 #define CONSTRUCTOR_MUTABLE_POISON(NODE) \
4341 (TREE_LANG_FLAG_2 (CONSTRUCTOR_CHECK (NODE)))
4343 /* True if this typed CONSTRUCTOR represents C99 compound-literal syntax rather
4344 than C++11 functional cast syntax. */
4345 #define CONSTRUCTOR_C99_COMPOUND_LITERAL(NODE) \
4346 (TREE_LANG_FLAG_3 (CONSTRUCTOR_CHECK (NODE)))
4348 /* True if this CONSTRUCTOR contains PLACEHOLDER_EXPRs referencing the
4349 CONSTRUCTOR's type not nested inside another CONSTRUCTOR marked with
4350 CONSTRUCTOR_PLACEHOLDER_BOUNDARY. */
4351 #define CONSTRUCTOR_PLACEHOLDER_BOUNDARY(NODE) \
4352 (TREE_LANG_FLAG_5 (CONSTRUCTOR_CHECK (NODE)))
4354 #define DIRECT_LIST_INIT_P(NODE) \
4355 (BRACE_ENCLOSED_INITIALIZER_P (NODE) && CONSTRUCTOR_IS_DIRECT_INIT (NODE))
4357 /* True if this is a designated initializer (when we allow initializer-clauses
4358 mixed with designated-initializer-clauses set whenever there is at least
4359 one designated-initializer-clause), or a C99 designator. */
4360 #define CONSTRUCTOR_IS_DESIGNATED_INIT(NODE) \
4361 (TREE_LANG_FLAG_6 (CONSTRUCTOR_CHECK (NODE)))
4363 /* True if this CONSTRUCTOR comes from a parenthesized list of values, e.g.
4365 #define CONSTRUCTOR_IS_PAREN_INIT(NODE) \
4366 (CONSTRUCTOR_CHECK(NODE)->base.private_flag)
4368 /* True if NODE represents a conversion for direct-initialization in a
4369 template. Set by perform_implicit_conversion_flags. */
4370 #define IMPLICIT_CONV_EXPR_DIRECT_INIT(NODE) \
4371 (TREE_LANG_FLAG_0 (IMPLICIT_CONV_EXPR_CHECK (NODE)))
4373 /* True if NODE represents a dependent conversion of a non-type template
4374 argument. Set by maybe_convert_nontype_argument. */
4375 #define IMPLICIT_CONV_EXPR_NONTYPE_ARG(NODE) \
4376 (TREE_LANG_FLAG_1 (IMPLICIT_CONV_EXPR_CHECK (NODE)))
4378 /* True if NODE represents a conversion for braced-init-list in a
4379 template. Set by perform_implicit_conversion_flags. */
4380 #define IMPLICIT_CONV_EXPR_BRACED_INIT(NODE) \
4381 (TREE_LANG_FLAG_2 (IMPLICIT_CONV_EXPR_CHECK (NODE)))
4383 /* Nonzero means that an object of this type cannot be initialized using
4384 an initializer list. */
4385 #define CLASSTYPE_NON_AGGREGATE(NODE) \
4386 (LANG_TYPE_CLASS_CHECK (NODE)->non_aggregate)
4387 #define TYPE_NON_AGGREGATE_CLASS(NODE) \
4388 (CLASS_TYPE_P (NODE) && CLASSTYPE_NON_AGGREGATE (NODE))
4390 /* Nonzero if there is a non-trivial X::op=(cv X&) for this class. */
4391 #define TYPE_HAS_COMPLEX_COPY_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_copy_assign)
4393 /* Nonzero if there is a non-trivial X::X(cv X&) for this class. */
4394 #define TYPE_HAS_COMPLEX_COPY_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_copy_ctor)
4396 /* Nonzero if there is a non-trivial X::op=(X&&) for this class. */
4397 #define TYPE_HAS_COMPLEX_MOVE_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_move_assign)
4399 /* Nonzero if there is a non-trivial X::X(X&&) for this class. */
4400 #define TYPE_HAS_COMPLEX_MOVE_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_move_ctor)
4402 /* Nonzero if there is no trivial default constructor for this class. */
4403 #define TYPE_HAS_COMPLEX_DFLT(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_dflt)
4405 /* Nonzero if TYPE has a trivial destructor. From [class.dtor]:
4407 A destructor is trivial if it is an implicitly declared
4410 - all of the direct base classes of its class have trivial
4413 - for all of the non-static data members of its class that are
4414 of class type (or array thereof), each such class has a
4415 trivial destructor. */
4416 #define TYPE_HAS_TRIVIAL_DESTRUCTOR(NODE) \
4417 (!TYPE_HAS_NONTRIVIAL_DESTRUCTOR (NODE))
4419 /* Nonzero for _TYPE node means that this type does not have a trivial
4420 destructor. Therefore, destroying an object of this type will
4421 involve a call to a destructor. This can apply to objects of
4422 ARRAY_TYPE if the type of the elements needs a destructor. */
4423 #define TYPE_HAS_NONTRIVIAL_DESTRUCTOR(NODE) \
4424 (TYPE_LANG_FLAG_4 (NODE))
4426 /* Nonzero for class type means that the default constructor is trivial. */
4427 #define TYPE_HAS_TRIVIAL_DFLT(NODE) \
4428 (TYPE_HAS_DEFAULT_CONSTRUCTOR (NODE) && ! TYPE_HAS_COMPLEX_DFLT (NODE))
4430 /* Nonzero for class type means that copy initialization of this type can use
4432 #define TYPE_HAS_TRIVIAL_COPY_CTOR(NODE) \
4433 (TYPE_HAS_COPY_CTOR (NODE) && ! TYPE_HAS_COMPLEX_COPY_CTOR (NODE))
4435 /* Nonzero for class type means that assignment of this type can use
4437 #define TYPE_HAS_TRIVIAL_COPY_ASSIGN(NODE) \
4438 (TYPE_HAS_COPY_ASSIGN (NODE) && ! TYPE_HAS_COMPLEX_COPY_ASSIGN (NODE))
4440 /* Returns true if NODE is a pointer-to-data-member. */
4441 #define TYPE_PTRDATAMEM_P(NODE) \
4442 (TREE_CODE (NODE) == OFFSET_TYPE)
4444 /* Returns true if NODE is a pointer. */
4445 #define TYPE_PTR_P(NODE) \
4446 (TREE_CODE (NODE) == POINTER_TYPE)
4448 /* Returns true if NODE is a reference. */
4449 #define TYPE_REF_P(NODE) \
4450 (TREE_CODE (NODE) == REFERENCE_TYPE)
4452 /* Returns true if NODE is a pointer or a reference. */
4453 #define INDIRECT_TYPE_P(NODE) \
4454 (TYPE_PTR_P (NODE) || TYPE_REF_P (NODE))
4456 /* Returns true if NODE is an object type:
4460 An object type is a (possibly cv-qualified) type that is not a
4461 function type, not a reference type, and not a void type.
4463 Keep these checks in ascending order, for speed. */
4464 #define TYPE_OBJ_P(NODE) \
4465 (!TYPE_REF_P (NODE) \
4466 && !VOID_TYPE_P (NODE) \
4467 && !FUNC_OR_METHOD_TYPE_P (NODE))
4469 /* Returns true if NODE is a pointer to an object. Keep these checks
4470 in ascending tree code order. */
4471 #define TYPE_PTROB_P(NODE) \
4472 (TYPE_PTR_P (NODE) && TYPE_OBJ_P (TREE_TYPE (NODE)))
4474 /* Returns true if NODE is a reference to an object. Keep these checks
4475 in ascending tree code order. */
4476 #define TYPE_REF_OBJ_P(NODE) \
4477 (TYPE_REF_P (NODE) && TYPE_OBJ_P (TREE_TYPE (NODE)))
4479 /* Returns true if NODE is a pointer to an object, or a pointer to
4480 void. Keep these checks in ascending tree code order. */
4481 #define TYPE_PTROBV_P(NODE) \
4482 (TYPE_PTR_P (NODE) \
4483 && !FUNC_OR_METHOD_TYPE_P (TREE_TYPE (NODE)))
4485 /* Returns true if NODE is a pointer to function type. */
4486 #define TYPE_PTRFN_P(NODE) \
4487 (TYPE_PTR_P (NODE) \
4488 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
4490 /* Returns true if NODE is a reference to function type. */
4491 #define TYPE_REFFN_P(NODE) \
4492 (TYPE_REF_P (NODE) \
4493 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
4495 /* Returns true if NODE is a pointer to member function type. */
4496 #define TYPE_PTRMEMFUNC_P(NODE) \
4497 (TREE_CODE (NODE) == RECORD_TYPE \
4498 && TYPE_PTRMEMFUNC_FLAG (NODE))
4500 #define TYPE_PTRMEMFUNC_FLAG(NODE) \
4501 (TYPE_LANG_FLAG_2 (RECORD_TYPE_CHECK (NODE)))
4503 /* Returns true if NODE is a pointer-to-member. */
4504 #define TYPE_PTRMEM_P(NODE) \
4505 (TYPE_PTRDATAMEM_P (NODE) || TYPE_PTRMEMFUNC_P (NODE))
4507 /* Returns true if NODE is a pointer or a pointer-to-member. */
4508 #define TYPE_PTR_OR_PTRMEM_P(NODE) \
4509 (TYPE_PTR_P (NODE) || TYPE_PTRMEM_P (NODE))
4511 /* Indicates when overload resolution may resolve to a pointer to
4512 member function. [expr.unary.op]/3 */
4513 #define PTRMEM_OK_P(NODE) \
4514 TREE_LANG_FLAG_0 (TREE_CHECK3 ((NODE), ADDR_EXPR, OFFSET_REF, SCOPE_REF))
4516 /* Get the POINTER_TYPE to the METHOD_TYPE associated with this
4517 pointer to member function. TYPE_PTRMEMFUNC_P _must_ be true,
4518 before using this macro. */
4519 #define TYPE_PTRMEMFUNC_FN_TYPE(NODE) \
4520 (cp_build_qualified_type (TREE_TYPE (TYPE_FIELDS (NODE)),\
4521 cp_type_quals (NODE)))
4523 /* As above, but can be used in places that want an lvalue at the expense
4524 of not necessarily having the correct cv-qualifiers. */
4525 #define TYPE_PTRMEMFUNC_FN_TYPE_RAW(NODE) \
4526 (TREE_TYPE (TYPE_FIELDS (NODE)))
4528 /* Returns `A' for a type like `int (A::*)(double)' */
4529 #define TYPE_PTRMEMFUNC_OBJECT_TYPE(NODE) \
4530 TYPE_METHOD_BASETYPE (TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
4532 /* The canonical internal RECORD_TYPE from the POINTER_TYPE to
4534 #define TYPE_PTRMEMFUNC_TYPE(NODE) \
4535 TYPE_LANG_SLOT_1 (NODE)
4537 /* For a pointer-to-member type of the form `T X::*', this is `X'.
4538 For a type like `void (X::*)() const', this type is `X', not `const
4539 X'. To get at the `const X' you have to look at the
4540 TYPE_PTRMEM_POINTED_TO_TYPE; there, the first parameter will have
4542 #define TYPE_PTRMEM_CLASS_TYPE(NODE) \
4543 (TYPE_PTRDATAMEM_P (NODE) \
4544 ? TYPE_OFFSET_BASETYPE (NODE) \
4545 : TYPE_PTRMEMFUNC_OBJECT_TYPE (NODE))
4547 /* For a pointer-to-member type of the form `T X::*', this is `T'. */
4548 #define TYPE_PTRMEM_POINTED_TO_TYPE(NODE) \
4549 (TYPE_PTRDATAMEM_P (NODE) \
4550 ? TREE_TYPE (NODE) \
4551 : TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
4553 /* For a pointer-to-member constant `X::Y' this is the RECORD_TYPE for
4555 #define PTRMEM_CST_CLASS(NODE) \
4556 TYPE_PTRMEM_CLASS_TYPE (TREE_TYPE (PTRMEM_CST_CHECK (NODE)))
4558 /* For a pointer-to-member constant `X::Y' this is the _DECL for
4560 #define PTRMEM_CST_MEMBER(NODE) \
4561 (((ptrmem_cst_t)PTRMEM_CST_CHECK (NODE))->member)
4563 /* The expression in question for a TYPEOF_TYPE. */
4564 #define TYPEOF_TYPE_EXPR(NODE) (TYPE_VALUES_RAW (TYPEOF_TYPE_CHECK (NODE)))
4566 /* The type in question for an UNDERLYING_TYPE. */
4567 #define UNDERLYING_TYPE_TYPE(NODE) \
4568 (TYPE_VALUES_RAW (UNDERLYING_TYPE_CHECK (NODE)))
4570 /* The type in question for BASES. */
4571 #define BASES_TYPE(NODE) \
4572 (TYPE_VALUES_RAW (BASES_CHECK (NODE)))
4574 #define BASES_DIRECT(NODE) \
4575 TREE_LANG_FLAG_0 (BASES_CHECK (NODE))
4577 /* The expression in question for a DECLTYPE_TYPE. */
4578 #define DECLTYPE_TYPE_EXPR(NODE) (TYPE_VALUES_RAW (DECLTYPE_TYPE_CHECK (NODE)))
4580 /* Whether the DECLTYPE_TYPE_EXPR of NODE was originally parsed as an
4581 id-expression or a member-access expression. When false, it was
4582 parsed as a full expression. */
4583 #define DECLTYPE_TYPE_ID_EXPR_OR_MEMBER_ACCESS_P(NODE) \
4584 (DECLTYPE_TYPE_CHECK (NODE))->type_common.string_flag
4586 /* These flags indicate that we want different semantics from normal
4587 decltype: lambda capture just drops references,
4588 lambda proxies look through implicit dereference. */
4589 #define DECLTYPE_FOR_LAMBDA_CAPTURE(NODE) \
4590 TREE_LANG_FLAG_0 (DECLTYPE_TYPE_CHECK (NODE))
4591 #define DECLTYPE_FOR_LAMBDA_PROXY(NODE) \
4592 TREE_LANG_FLAG_2 (DECLTYPE_TYPE_CHECK (NODE))
4593 #define DECLTYPE_FOR_REF_CAPTURE(NODE) \
4594 TREE_LANG_FLAG_3 (DECLTYPE_TYPE_CHECK (NODE))
4596 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `extern' was
4597 specified in its declaration. This can also be set for an
4598 erroneously declared PARM_DECL. */
4599 #define DECL_THIS_EXTERN(NODE) \
4600 DECL_LANG_FLAG_2 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
4602 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `static' was
4603 specified in its declaration. This can also be set for an
4604 erroneously declared PARM_DECL. */
4605 #define DECL_THIS_STATIC(NODE) \
4606 DECL_LANG_FLAG_6 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
4608 /* Nonzero for FIELD_DECL node means that this field is a lambda capture
4609 field for an array of runtime bound. */
4610 #define DECL_VLA_CAPTURE_P(NODE) \
4611 DECL_LANG_FLAG_1 (FIELD_DECL_CHECK (NODE))
4613 /* Nonzero for PARM_DECL node means that this is an array function
4614 parameter, i.e, a[] rather than *a. */
4615 #define DECL_ARRAY_PARAMETER_P(NODE) \
4616 DECL_LANG_FLAG_1 (PARM_DECL_CHECK (NODE))
4618 /* Nonzero for a FIELD_DECL who's NSMDI is currently being
4620 #define DECL_INSTANTIATING_NSDMI_P(NODE) \
4621 DECL_LANG_FLAG_2 (FIELD_DECL_CHECK (NODE))
4623 /* Nonzero for FIELD_DECL node means that this field is a base class
4624 of the parent object, as opposed to a member field. */
4625 #define DECL_FIELD_IS_BASE(NODE) \
4626 DECL_LANG_FLAG_6 (FIELD_DECL_CHECK (NODE))
4628 /* Nonzero for FIELD_DECL node means that this field is a simple (no
4629 explicit initializer) lambda capture field, making it invisible to
4630 name lookup in unevaluated contexts. */
4631 #define DECL_NORMAL_CAPTURE_P(NODE) \
4632 DECL_LANG_FLAG_7 (FIELD_DECL_CHECK (NODE))
4634 /* Nonzero if TYPE is an anonymous union or struct type. We have to use a
4635 flag for this because "A union for which objects or pointers are
4636 declared is not an anonymous union" [class.union]. */
4637 #define ANON_AGGR_TYPE_P(NODE) \
4638 (CLASS_TYPE_P (NODE) && LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr)
4639 #define SET_ANON_AGGR_TYPE_P(NODE) \
4640 (LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr = 1)
4642 /* Nonzero if TYPE is an anonymous union type. */
4643 #define ANON_UNION_TYPE_P(NODE) \
4644 (TREE_CODE (NODE) == UNION_TYPE && ANON_AGGR_TYPE_P (NODE))
4646 /* Define fields and accessors for nodes representing declared names. */
4648 /* True if TYPE is an unnamed structured type with a typedef for
4649 linkage purposes. In that case TYPE_NAME and TYPE_STUB_DECL of the
4650 MAIN-VARIANT are different. */
4651 #define TYPE_WAS_UNNAMED(NODE) \
4652 (TYPE_NAME (TYPE_MAIN_VARIANT (NODE)) \
4653 != TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE)))
4655 /* C++: all of these are overloaded! These apply only to TYPE_DECLs. */
4657 /* The format of each node in the DECL_FRIENDLIST is as follows:
4659 The TREE_PURPOSE will be the name of a function, i.e., an
4660 IDENTIFIER_NODE. The TREE_VALUE will be itself a TREE_LIST, whose
4661 TREE_VALUEs are friends with the given name. */
4662 #define DECL_FRIENDLIST(NODE) (DECL_INITIAL (NODE))
4663 #define FRIEND_NAME(LIST) (TREE_PURPOSE (LIST))
4664 #define FRIEND_DECLS(LIST) (TREE_VALUE (LIST))
4666 /* The DECL_ACCESS, if non-NULL, is a TREE_LIST. The TREE_PURPOSE of
4667 each node is a type; the TREE_VALUE is the access granted for this
4668 DECL in that type. The DECL_ACCESS is set by access declarations.
4669 For example, if a member that would normally be public in a
4670 derived class is made protected, then the derived class and the
4671 protected_access_node will appear in the DECL_ACCESS for the node. */
4672 #define DECL_ACCESS(NODE) (LANG_DECL_MIN_CHECK (NODE)->access)
4674 /* Nonzero if the FUNCTION_DECL is a global constructor. */
4675 #define DECL_GLOBAL_CTOR_P(NODE) \
4676 (LANG_DECL_FN_CHECK (NODE)->global_ctor_p)
4678 /* Nonzero if the FUNCTION_DECL is a global destructor. */
4679 #define DECL_GLOBAL_DTOR_P(NODE) \
4680 (LANG_DECL_FN_CHECK (NODE)->global_dtor_p)
4682 /* Accessor macros for C++ template decl nodes. */
4684 /* The DECL_TEMPLATE_PARMS are a list. The TREE_PURPOSE of each node
4685 is a INT_CST whose TREE_INT_CST_LOW indicates the level of the
4686 template parameters, with 1 being the outermost set of template
4687 parameters. The TREE_VALUE is a vector, whose elements are the
4688 template parameters at each level. Each element in the vector is a
4689 TREE_LIST, whose TREE_VALUE is a PARM_DECL (if the parameter is a
4690 non-type parameter), or a TYPE_DECL (if the parameter is a type
4691 parameter) or a TEMPLATE_DECL (if the parameter is a template
4692 parameter). The TREE_PURPOSE is the default value, if any. The
4693 TEMPLATE_PARM_INDEX for the parameter is available as the
4694 DECL_INITIAL (for a PARM_DECL) or as the TREE_TYPE (for a
4697 FIXME: CONST_CAST_TREE is a hack that hopefully will go away after
4698 tree is converted to C++ class hiearchy. */
4699 #define DECL_TEMPLATE_PARMS(NODE) \
4700 ((struct tree_template_decl *)CONST_CAST_TREE (TEMPLATE_DECL_CHECK (NODE)))->arguments
4701 #define DECL_INNERMOST_TEMPLATE_PARMS(NODE) \
4702 INNERMOST_TEMPLATE_PARMS (DECL_TEMPLATE_PARMS (NODE))
4703 #define DECL_NTPARMS(NODE) \
4704 TREE_VEC_LENGTH (DECL_INNERMOST_TEMPLATE_PARMS (NODE))
4705 /* For function, method, class-data templates.
4707 FIXME: CONST_CAST_TREE is a hack that hopefully will go away after
4708 tree is converted to C++ class hiearchy. */
4709 #define DECL_TEMPLATE_RESULT(NODE) \
4710 ((struct tree_template_decl *)CONST_CAST_TREE(TEMPLATE_DECL_CHECK (NODE)))->result
4711 /* For a function template at namespace scope, DECL_TEMPLATE_INSTANTIATIONS
4712 lists all instantiations and specializations of the function so that
4713 tsubst_friend_function can reassign them to another template if we find
4714 that the namespace-scope template is really a partial instantiation of a
4717 For a class template the DECL_TEMPLATE_INSTANTIATIONS lists holds
4718 all instantiations and specializations of the class type, including
4719 partial instantiations and partial specializations, so that if we
4720 explicitly specialize a partial instantiation we can walk the list
4721 in maybe_process_partial_specialization and reassign them or complain
4724 In both cases, the TREE_PURPOSE of each node contains the arguments
4725 used; the TREE_VALUE contains the generated variable. The template
4726 arguments are always complete. For example, given:
4728 template <class T> struct S1 {
4729 template <class U> struct S2 {};
4730 template <class U> struct S2<U*> {};
4733 the record for the partial specialization will contain, as its
4734 argument list, { {T}, {U*} }, and will be on the
4735 DECL_TEMPLATE_INSTANTIATIONS list for `template <class T> template
4736 <class U> struct S1<T>::S2'.
4738 This list is not used for other templates. */
4739 #define DECL_TEMPLATE_INSTANTIATIONS(NODE) \
4740 DECL_SIZE_UNIT (TEMPLATE_DECL_CHECK (NODE))
4742 /* For a class template, this list contains the partial
4743 specializations of this template. (Full specializations are not
4744 recorded on this list.) The TREE_PURPOSE holds the arguments used
4745 in the partial specialization (e.g., for `template <class T> struct
4746 S<T*, int>' this will be `T*, int'.) The arguments will also include
4747 any outer template arguments. The TREE_VALUE holds the TEMPLATE_DECL
4748 for the partial specialization. The TREE_TYPE is the _TYPE node for
4749 the partial specialization.
4751 This list is not used for other templates. */
4752 #define DECL_TEMPLATE_SPECIALIZATIONS(NODE) \
4753 DECL_SIZE (TEMPLATE_DECL_CHECK (NODE))
4755 /* Nonzero for a DECL which is actually a template parameter. Keep
4756 these checks in ascending tree code order. */
4757 #define DECL_TEMPLATE_PARM_P(NODE) \
4758 (DECL_LANG_FLAG_0 (NODE) \
4759 && (TREE_CODE (NODE) == CONST_DECL \
4760 || TREE_CODE (NODE) == PARM_DECL \
4761 || TREE_CODE (NODE) == TYPE_DECL \
4762 || TREE_CODE (NODE) == TEMPLATE_DECL))
4764 /* Nonzero for a raw template parameter node. */
4765 #define TEMPLATE_PARM_P(NODE) \
4766 (TREE_CODE (NODE) == TEMPLATE_TYPE_PARM \
4767 || TREE_CODE (NODE) == TEMPLATE_TEMPLATE_PARM \
4768 || TREE_CODE (NODE) == TEMPLATE_PARM_INDEX)
4770 /* Mark NODE as a template parameter. */
4771 #define SET_DECL_TEMPLATE_PARM_P(NODE) \
4772 (DECL_LANG_FLAG_0 (NODE) = 1)
4774 /* Nonzero if NODE is a template template parameter. */
4775 #define DECL_TEMPLATE_TEMPLATE_PARM_P(NODE) \
4776 (TREE_CODE (NODE) == TEMPLATE_DECL && DECL_TEMPLATE_PARM_P (NODE))
4778 /* Nonzero for a DECL that represents a function template. */
4779 #define DECL_FUNCTION_TEMPLATE_P(NODE) \
4780 (TREE_CODE (NODE) == TEMPLATE_DECL \
4781 && DECL_TEMPLATE_RESULT (NODE) != NULL_TREE \
4782 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == FUNCTION_DECL)
4784 /* Nonzero for a DECL that represents a class template or alias
4786 #define DECL_TYPE_TEMPLATE_P(NODE) \
4787 (TREE_CODE (NODE) == TEMPLATE_DECL \
4788 && DECL_TEMPLATE_RESULT (NODE) != NULL_TREE \
4789 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == TYPE_DECL)
4791 /* Nonzero for a DECL that represents a class template. */
4792 #define DECL_CLASS_TEMPLATE_P(NODE) \
4793 (DECL_TYPE_TEMPLATE_P (NODE) \
4794 && DECL_IMPLICIT_TYPEDEF_P (DECL_TEMPLATE_RESULT (NODE)))
4796 /* Nonzero for a TEMPLATE_DECL that represents an alias template. */
4797 #define DECL_ALIAS_TEMPLATE_P(NODE) \
4798 (DECL_TYPE_TEMPLATE_P (NODE) \
4799 && !DECL_ARTIFICIAL (DECL_TEMPLATE_RESULT (NODE)))
4801 /* Nonzero for a NODE which declares a type. */
4802 #define DECL_DECLARES_TYPE_P(NODE) \
4803 (TREE_CODE (NODE) == TYPE_DECL || DECL_TYPE_TEMPLATE_P (NODE))
4805 /* Nonzero if NODE declares a function. */
4806 #define DECL_DECLARES_FUNCTION_P(NODE) \
4807 (TREE_CODE (NODE) == FUNCTION_DECL || DECL_FUNCTION_TEMPLATE_P (NODE))
4809 /* Nonzero if NODE is the typedef implicitly generated for a type when
4810 the type is declared. In C++, `struct S {};' is roughly
4811 equivalent to `struct S {}; typedef struct S S;' in C.
4812 DECL_IMPLICIT_TYPEDEF_P will hold for the typedef indicated in this
4813 example. In C++, there is a second implicit typedef for each
4814 class, called the injected-class-name, in the scope of `S' itself, so that
4815 you can say `S::S'. DECL_SELF_REFERENCE_P will hold for that typedef. */
4816 #define DECL_IMPLICIT_TYPEDEF_P(NODE) \
4817 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_2 (NODE))
4818 #define SET_DECL_IMPLICIT_TYPEDEF_P(NODE) \
4819 (DECL_LANG_FLAG_2 (NODE) = 1)
4820 #define DECL_SELF_REFERENCE_P(NODE) \
4821 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_4 (NODE))
4822 #define SET_DECL_SELF_REFERENCE_P(NODE) \
4823 (DECL_LANG_FLAG_4 (NODE) = 1)
4825 /* A `primary' template is one that has its own template header and is not
4826 a partial specialization. A member function of a class template is a
4827 template, but not primary. A member template is primary. Friend
4828 templates are primary, too. */
4830 /* Returns the primary template corresponding to these parameters. */
4831 #define TPARMS_PRIMARY_TEMPLATE(NODE) (TREE_TYPE (NODE))
4833 #define DECL_PRIMARY_TEMPLATE(NODE) \
4834 (TPARMS_PRIMARY_TEMPLATE (DECL_INNERMOST_TEMPLATE_PARMS (NODE)))
4836 /* Returns nonzero if NODE is a primary template. */
4837 #define PRIMARY_TEMPLATE_P(NODE) (DECL_PRIMARY_TEMPLATE (NODE) == (NODE))
4839 /* Nonzero iff NODE is a specialization of a template. The value
4840 indicates the type of specializations:
4842 1=implicit instantiation
4844 2=partial or explicit specialization, e.g.:
4846 template <> int min<int> (int, int),
4848 3=explicit instantiation, e.g.:
4850 template int min<int> (int, int);
4852 Note that NODE will be marked as a specialization even if the
4853 template it is instantiating is not a primary template. For
4856 template <typename T> struct O {
4861 both O<int>::f and O<int>::I will be marked as instantiations.
4863 If DECL_USE_TEMPLATE is nonzero, then DECL_TEMPLATE_INFO will also
4865 #define DECL_USE_TEMPLATE(NODE) (DECL_LANG_SPECIFIC (NODE)->u.base.use_template)
4867 /* Like DECL_USE_TEMPLATE, but for class types. */
4868 #define CLASSTYPE_USE_TEMPLATE(NODE) \
4869 (LANG_TYPE_CLASS_CHECK (NODE)->use_template)
4871 /* True if NODE is a specialization of a primary template. */
4872 #define CLASSTYPE_SPECIALIZATION_OF_PRIMARY_TEMPLATE_P(NODE) \
4873 (CLASS_TYPE_P (NODE) \
4874 && CLASSTYPE_USE_TEMPLATE (NODE) \
4875 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE)))
4877 #define DECL_TEMPLATE_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) & 1)
4878 #define CLASSTYPE_TEMPLATE_INSTANTIATION(NODE) \
4879 (CLASSTYPE_USE_TEMPLATE (NODE) & 1)
4881 #define DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) == 2)
4882 #define SET_DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) = 2)
4884 /* Returns true for an explicit or partial specialization of a class
4886 #define CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
4887 (CLASSTYPE_USE_TEMPLATE (NODE) == 2)
4888 #define SET_CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
4889 (CLASSTYPE_USE_TEMPLATE (NODE) = 2)
4891 #define DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 1)
4892 #define SET_DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 1)
4893 #define CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
4894 (CLASSTYPE_USE_TEMPLATE (NODE) == 1)
4895 #define SET_CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
4896 (CLASSTYPE_USE_TEMPLATE (NODE) = 1)
4898 #define DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 3)
4899 #define SET_DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 3)
4900 #define CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
4901 (CLASSTYPE_USE_TEMPLATE (NODE) == 3)
4902 #define SET_CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
4903 (CLASSTYPE_USE_TEMPLATE (NODE) = 3)
4905 /* Nonzero if DECL is a friend function which is an instantiation
4906 from the point of view of the compiler, but not from the point of
4907 view of the language. For example given:
4908 template <class T> struct S { friend void f(T) {}; };
4909 the declaration of `void f(int)' generated when S<int> is
4910 instantiated will not be a DECL_TEMPLATE_INSTANTIATION, but will be
4911 a DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION. */
4912 #define DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION(DECL) \
4913 (DECL_LANG_SPECIFIC (DECL) && DECL_TEMPLATE_INFO (DECL) \
4914 && !DECL_USE_TEMPLATE (DECL))
4916 /* Nonzero if DECL is a function generated from a function 'temploid',
4917 i.e. template, member of class template, or dependent friend. */
4918 #define DECL_TEMPLOID_INSTANTIATION(DECL) \
4919 (DECL_TEMPLATE_INSTANTIATION (DECL) \
4920 || DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (DECL))
4922 /* Nonzero if DECL is either defined implicitly by the compiler or
4923 generated from a temploid. */
4924 #define DECL_GENERATED_P(DECL) \
4925 (DECL_TEMPLOID_INSTANTIATION (DECL) || DECL_DEFAULTED_FN (DECL))
4927 /* Nonzero iff we are currently processing a declaration for an
4928 entity with its own template parameter list, and which is not a
4929 full specialization. */
4930 #define PROCESSING_REAL_TEMPLATE_DECL_P() \
4931 (!processing_template_parmlist \
4932 && processing_template_decl > template_class_depth (current_scope ()))
4934 /* Nonzero if this VAR_DECL or FUNCTION_DECL has already been
4935 instantiated, i.e. its definition has been generated from the
4936 pattern given in the template. */
4937 #define DECL_TEMPLATE_INSTANTIATED(NODE) \
4938 DECL_LANG_FLAG_1 (VAR_OR_FUNCTION_DECL_CHECK (NODE))
4940 /* We know what we're doing with this decl now. */
4941 #define DECL_INTERFACE_KNOWN(NODE) DECL_LANG_FLAG_5 (NODE)
4943 /* DECL_EXTERNAL must be set on a decl until the decl is actually emitted,
4944 so that assemble_external will work properly. So we have this flag to
4945 tell us whether the decl is really not external.
4947 This flag does not indicate whether or not the decl is defined in the
4948 current translation unit; it indicates whether or not we should emit the
4949 decl at the end of compilation if it is defined and needed. */
4950 #define DECL_NOT_REALLY_EXTERN(NODE) \
4951 (DECL_LANG_SPECIFIC (NODE)->u.base.not_really_extern)
4953 #define DECL_REALLY_EXTERN(NODE) \
4954 (DECL_EXTERNAL (NODE) \
4955 && (!DECL_LANG_SPECIFIC (NODE) || !DECL_NOT_REALLY_EXTERN (NODE)))
4957 /* A thunk is a stub function.
4959 A thunk is an alternate entry point for an ordinary FUNCTION_DECL.
4960 The address of the ordinary FUNCTION_DECL is given by the
4961 DECL_INITIAL, which is always an ADDR_EXPR whose operand is a
4962 FUNCTION_DECL. The job of the thunk is to either adjust the this
4963 pointer before transferring control to the FUNCTION_DECL, or call
4964 FUNCTION_DECL and then adjust the result value. Note, the result
4965 pointer adjusting thunk must perform a call to the thunked
4966 function, (or be implemented via passing some invisible parameter
4967 to the thunked function, which is modified to perform the
4968 adjustment just before returning).
4970 A thunk may perform either, or both, of the following operations:
4972 o Adjust the this or result pointer by a constant offset.
4973 o Adjust the this or result pointer by looking up a vcall or vbase offset
4976 A this pointer adjusting thunk converts from a base to a derived
4977 class, and hence adds the offsets. A result pointer adjusting thunk
4978 converts from a derived class to a base, and hence subtracts the
4979 offsets. If both operations are performed, then the constant
4980 adjustment is performed first for this pointer adjustment and last
4981 for the result pointer adjustment.
4983 The constant adjustment is given by THUNK_FIXED_OFFSET. If the
4984 vcall or vbase offset is required, THUNK_VIRTUAL_OFFSET is
4985 used. For this pointer adjusting thunks, it is the vcall offset
4986 into the vtable. For result pointer adjusting thunks it is the
4987 binfo of the virtual base to convert to. Use that binfo's vbase
4990 It is possible to have equivalent covariant thunks. These are
4991 distinct virtual covariant thunks whose vbase offsets happen to
4992 have the same value. THUNK_ALIAS is used to pick one as the
4993 canonical thunk, which will get all the this pointer adjusting
4994 thunks attached to it. */
4996 /* An integer indicating how many bytes should be subtracted from the
4997 this or result pointer when this function is called. */
4998 #define THUNK_FIXED_OFFSET(DECL) \
4999 (DECL_LANG_SPECIFIC (THUNK_FUNCTION_CHECK (DECL))->u.fn.u5.fixed_offset)
5001 /* A tree indicating how to perform the virtual adjustment. For a this
5002 adjusting thunk it is the number of bytes to be added to the vtable
5003 to find the vcall offset. For a result adjusting thunk, it is the
5004 binfo of the relevant virtual base. If NULL, then there is no
5005 virtual adjust. (The vptr is always located at offset zero from
5006 the this or result pointer.) (If the covariant type is within the
5007 class hierarchy being laid out, the vbase index is not yet known
5008 at the point we need to create the thunks, hence the need to use
5011 #define THUNK_VIRTUAL_OFFSET(DECL) \
5012 (LANG_DECL_MIN_CHECK (FUNCTION_DECL_CHECK (DECL))->access)
5014 /* A thunk which is equivalent to another thunk. */
5015 #define THUNK_ALIAS(DECL) \
5016 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->u.min.template_info)
5018 /* For thunk NODE, this is the FUNCTION_DECL thunked to. It is
5019 possible for the target to be a thunk too. */
5020 #define THUNK_TARGET(NODE) \
5021 (LANG_DECL_FN_CHECK (NODE)->befriending_classes)
5023 /* True for a SCOPE_REF iff the "template" keyword was used to
5024 indicate that the qualified name denotes a template. */
5025 #define QUALIFIED_NAME_IS_TEMPLATE(NODE) \
5026 (TREE_LANG_FLAG_1 (SCOPE_REF_CHECK (NODE)))
5031 /* True if NODE is a co-routine FUNCTION_DECL. */
5032 #define DECL_COROUTINE_P(NODE) \
5033 (LANG_DECL_FN_CHECK (DECL_COMMON_CHECK (NODE))->coroutine_p)
5035 /* True for an OMP_ATOMIC that has dependent parameters. These are stored
5036 as an expr in operand 1, and integer_zero_node or clauses in operand 0. */
5037 #define OMP_ATOMIC_DEPENDENT_P(NODE) \
5038 (TREE_CODE (TREE_OPERAND (OMP_ATOMIC_CHECK (NODE), 0)) == INTEGER_CST \
5039 || TREE_CODE (TREE_OPERAND (OMP_ATOMIC_CHECK (NODE), 0)) == OMP_CLAUSE)
5041 /* Used while gimplifying continue statements bound to OMP_FOR nodes. */
5042 #define OMP_FOR_GIMPLIFYING_P(NODE) \
5043 (TREE_LANG_FLAG_0 (OMP_LOOPING_CHECK (NODE)))
5045 /* A language-specific token attached to the OpenMP data clauses to
5046 hold code (or code fragments) related to ctors, dtors, and op=.
5047 See semantics.c for details. */
5048 #define CP_OMP_CLAUSE_INFO(NODE) \
5049 TREE_TYPE (OMP_CLAUSE_RANGE_CHECK (NODE, OMP_CLAUSE_PRIVATE, \
5050 OMP_CLAUSE__CONDTEMP_))
5052 /* Nonzero if this transaction expression's body contains statements. */
5053 #define TRANSACTION_EXPR_IS_STMT(NODE) \
5054 TREE_LANG_FLAG_0 (TRANSACTION_EXPR_CHECK (NODE))
5056 /* These macros provide convenient access to the various _STMT nodes
5057 created when parsing template declarations. */
5058 #define TRY_STMTS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 0)
5059 #define TRY_HANDLERS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 1)
5061 #define EH_SPEC_STMTS(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 0)
5062 #define EH_SPEC_RAISES(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 1)
5064 #define USING_STMT_NAMESPACE(NODE) TREE_OPERAND (USING_STMT_CHECK (NODE), 0)
5066 /* Nonzero if this try block is a function try block. */
5067 #define FN_TRY_BLOCK_P(NODE) TREE_LANG_FLAG_3 (TRY_BLOCK_CHECK (NODE))
5068 #define HANDLER_PARMS(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 0)
5069 #define HANDLER_BODY(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 1)
5070 #define HANDLER_TYPE(NODE) TREE_TYPE (HANDLER_CHECK (NODE))
5072 /* CLEANUP_STMT accessors. The statement(s) covered, the cleanup to run
5073 and the VAR_DECL for which this cleanup exists. */
5074 #define CLEANUP_BODY(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 0)
5075 #define CLEANUP_EXPR(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 1)
5076 #define CLEANUP_DECL(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 2)
5078 /* IF_STMT accessors. These give access to the condition of the if
5079 statement, the then block of the if statement, and the else block
5080 of the if statement if it exists. */
5081 #define IF_COND(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 0)
5082 #define THEN_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 1)
5083 #define ELSE_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 2)
5084 #define IF_SCOPE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 3)
5085 #define IF_STMT_CONSTEXPR_P(NODE) TREE_LANG_FLAG_0 (IF_STMT_CHECK (NODE))
5087 /* Like PACK_EXPANSION_EXTRA_ARGS, for constexpr if. IF_SCOPE is used while
5088 building an IF_STMT; IF_STMT_EXTRA_ARGS is used after it is complete. */
5089 #define IF_STMT_EXTRA_ARGS(NODE) IF_SCOPE (NODE)
5091 /* WHILE_STMT accessors. These give access to the condition of the
5092 while statement and the body of the while statement, respectively. */
5093 #define WHILE_COND(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 0)
5094 #define WHILE_BODY(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 1)
5096 /* DO_STMT accessors. These give access to the condition of the do
5097 statement and the body of the do statement, respectively. */
5098 #define DO_COND(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 0)
5099 #define DO_BODY(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 1)
5101 /* FOR_STMT accessors. These give access to the init statement,
5102 condition, update expression, and body of the for statement,
5104 #define FOR_INIT_STMT(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 0)
5105 #define FOR_COND(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 1)
5106 #define FOR_EXPR(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 2)
5107 #define FOR_BODY(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 3)
5108 #define FOR_SCOPE(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 4)
5110 /* RANGE_FOR_STMT accessors. These give access to the declarator,
5111 expression, body, and scope of the statement, respectively. */
5112 #define RANGE_FOR_DECL(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 0)
5113 #define RANGE_FOR_EXPR(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 1)
5114 #define RANGE_FOR_BODY(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 2)
5115 #define RANGE_FOR_SCOPE(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 3)
5116 #define RANGE_FOR_UNROLL(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 4)
5117 #define RANGE_FOR_INIT_STMT(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 5)
5118 #define RANGE_FOR_IVDEP(NODE) TREE_LANG_FLAG_6 (RANGE_FOR_STMT_CHECK (NODE))
5120 #define SWITCH_STMT_COND(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 0)
5121 #define SWITCH_STMT_BODY(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 1)
5122 #define SWITCH_STMT_TYPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 2)
5123 #define SWITCH_STMT_SCOPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 3)
5124 /* True if there are case labels for all possible values of switch cond, either
5125 because there is a default: case label or because the case label ranges cover
5127 #define SWITCH_STMT_ALL_CASES_P(NODE) \
5128 TREE_LANG_FLAG_0 (SWITCH_STMT_CHECK (NODE))
5129 /* True if the body of a switch stmt contains no BREAK_STMTs. */
5130 #define SWITCH_STMT_NO_BREAK_P(NODE) \
5131 TREE_LANG_FLAG_2 (SWITCH_STMT_CHECK (NODE))
5133 /* STMT_EXPR accessor. */
5134 #define STMT_EXPR_STMT(NODE) TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0)
5136 /* EXPR_STMT accessor. This gives the expression associated with an
5137 expression statement. */
5138 #define EXPR_STMT_EXPR(NODE) TREE_OPERAND (EXPR_STMT_CHECK (NODE), 0)
5140 /* True if this TARGET_EXPR was created by build_cplus_new, and so we can
5141 discard it if it isn't useful. */
5142 #define TARGET_EXPR_IMPLICIT_P(NODE) \
5143 TREE_LANG_FLAG_0 (TARGET_EXPR_CHECK (NODE))
5145 /* True if this TARGET_EXPR is the result of list-initialization of a
5147 #define TARGET_EXPR_LIST_INIT_P(NODE) \
5148 TREE_LANG_FLAG_1 (TARGET_EXPR_CHECK (NODE))
5150 /* True if this TARGET_EXPR expresses direct-initialization of an object
5151 to be named later. */
5152 #define TARGET_EXPR_DIRECT_INIT_P(NODE) \
5153 TREE_LANG_FLAG_2 (TARGET_EXPR_CHECK (NODE))
5155 /* True if NODE is a TARGET_EXPR that just expresses a copy of its INITIAL; if
5156 the initializer has void type, it's doing something more complicated. */
5157 #define SIMPLE_TARGET_EXPR_P(NODE) \
5158 (TREE_CODE (NODE) == TARGET_EXPR \
5159 && TARGET_EXPR_INITIAL (NODE) \
5160 && !VOID_TYPE_P (TREE_TYPE (TARGET_EXPR_INITIAL (NODE))))
5162 /* True if EXPR expresses direct-initialization of a TYPE. */
5163 #define DIRECT_INIT_EXPR_P(TYPE,EXPR) \
5164 (TREE_CODE (EXPR) == TARGET_EXPR && TREE_LANG_FLAG_2 (EXPR) \
5165 && same_type_ignoring_top_level_qualifiers_p (TYPE, TREE_TYPE (EXPR)))
5167 /* True if this CONVERT_EXPR is for a conversion to virtual base in
5168 an NSDMI, and should be re-evaluated when used in a constructor. */
5169 #define CONVERT_EXPR_VBASE_PATH(NODE) \
5170 TREE_LANG_FLAG_0 (CONVERT_EXPR_CHECK (NODE))
5172 /* True if SIZEOF_EXPR argument is type. */
5173 #define SIZEOF_EXPR_TYPE_P(NODE) \
5174 TREE_LANG_FLAG_0 (SIZEOF_EXPR_CHECK (NODE))
5176 /* True if the ALIGNOF_EXPR was spelled "alignof". */
5177 #define ALIGNOF_EXPR_STD_P(NODE) \
5178 TREE_LANG_FLAG_0 (ALIGNOF_EXPR_CHECK (NODE))
5180 /* OMP_DEPOBJ accessors. These give access to the depobj expression of the
5181 #pragma omp depobj directive and the clauses, respectively. If
5182 OMP_DEPOBJ_CLAUSES is INTEGER_CST, it is instead the update clause kind
5183 or OMP_CLAUSE_DEPEND_LAST for destroy clause. */
5184 #define OMP_DEPOBJ_DEPOBJ(NODE) TREE_OPERAND (OMP_DEPOBJ_CHECK (NODE), 0)
5185 #define OMP_DEPOBJ_CLAUSES(NODE) TREE_OPERAND (OMP_DEPOBJ_CHECK (NODE), 1)
5187 /* An enumeration of the kind of tags that C++ accepts. */
5189 none_type
= 0, /* Not a tag type. */
5190 record_type
, /* "struct" types. */
5191 class_type
, /* "class" types. */
5192 union_type
, /* "union" types. */
5193 enum_type
, /* "enum" types. */
5194 typename_type
, /* "typename" types. */
5195 scope_type
/* namespace or tagged type name followed by :: */
5198 /* The various kinds of lvalues we distinguish. */
5199 enum cp_lvalue_kind_flags
{
5200 clk_none
= 0, /* Things that are not an lvalue. */
5201 clk_ordinary
= 1, /* An ordinary lvalue. */
5202 clk_rvalueref
= 2,/* An xvalue (rvalue formed using an rvalue reference) */
5203 clk_class
= 4, /* A prvalue of class or array type. */
5204 clk_bitfield
= 8, /* An lvalue for a bit-field. */
5205 clk_packed
= 16, /* An lvalue for a packed field. */
5206 clk_implicit_rval
= 1<<5 /* An lvalue being treated as an xvalue. */
5209 /* This type is used for parameters and variables which hold
5210 combinations of the flags in enum cp_lvalue_kind_flags. */
5211 typedef int cp_lvalue_kind
;
5213 /* Various kinds of template specialization, instantiation, etc. */
5214 enum tmpl_spec_kind
{
5215 tsk_none
, /* Not a template at all. */
5216 tsk_invalid_member_spec
, /* An explicit member template
5217 specialization, but the enclosing
5218 classes have not all been explicitly
5220 tsk_invalid_expl_inst
, /* An explicit instantiation containing
5221 template parameter lists. */
5222 tsk_excessive_parms
, /* A template declaration with too many
5223 template parameter lists. */
5224 tsk_insufficient_parms
, /* A template declaration with too few
5226 tsk_template
, /* A template declaration. */
5227 tsk_expl_spec
, /* An explicit specialization. */
5228 tsk_expl_inst
/* An explicit instantiation. */
5231 /* The various kinds of access. BINFO_ACCESS depends on these being
5232 two bit quantities. The numerical values are important; they are
5233 used to initialize RTTI data structures, so changing them changes
5236 ak_none
= 0, /* Inaccessible. */
5237 ak_public
= 1, /* Accessible, as a `public' thing. */
5238 ak_protected
= 2, /* Accessible, as a `protected' thing. */
5239 ak_private
= 3 /* Accessible, as a `private' thing. */
5242 /* The various kinds of special functions. If you add to this list,
5243 you should update special_function_p as well. */
5244 enum special_function_kind
{
5245 sfk_none
= 0, /* Not a special function. This enumeral
5246 must have value zero; see
5247 special_function_p. */
5248 /* The following are ordered, for use by member synthesis fns. */
5249 sfk_destructor
, /* A destructor. */
5250 sfk_constructor
, /* A constructor. */
5251 sfk_inheriting_constructor
, /* An inheriting constructor */
5252 sfk_copy_constructor
, /* A copy constructor. */
5253 sfk_move_constructor
, /* A move constructor. */
5254 sfk_copy_assignment
, /* A copy assignment operator. */
5255 sfk_move_assignment
, /* A move assignment operator. */
5256 /* The following are unordered. */
5257 sfk_complete_destructor
, /* A destructor for complete objects. */
5258 sfk_base_destructor
, /* A destructor for base subobjects. */
5259 sfk_deleting_destructor
, /* A destructor for complete objects that
5260 deletes the object after it has been
5262 sfk_conversion
, /* A conversion operator. */
5263 sfk_deduction_guide
, /* A class template deduction guide. */
5264 sfk_comparison
, /* A comparison operator (e.g. ==, <, <=>). */
5265 sfk_virtual_destructor
/* Used by member synthesis fns. */
5268 /* The various kinds of linkage. From [basic.link],
5270 A name is said to have linkage when it might denote the same
5271 object, reference, function, type, template, namespace or value
5272 as a name introduced in another scope:
5274 -- When a name has external linkage, the entity it denotes can
5275 be referred to from scopes of other translation units or from
5276 other scopes of the same translation unit.
5278 -- When a name has internal linkage, the entity it denotes can
5279 be referred to by names from other scopes in the same
5282 -- When a name has no linkage, the entity it denotes cannot be
5283 referred to by names from other scopes. */
5286 lk_none
, /* No linkage. */
5287 lk_internal
, /* Internal linkage. */
5288 lk_external
/* External linkage. */
5291 enum duration_kind
{
5298 /* Bitmask flags to control type substitution. */
5300 tf_none
= 0, /* nothing special */
5301 tf_error
= 1 << 0, /* give error messages */
5302 tf_warning
= 1 << 1, /* give warnings too */
5303 tf_ignore_bad_quals
= 1 << 2, /* ignore bad cvr qualifiers */
5304 tf_keep_type_decl
= 1 << 3, /* retain typedef type decls
5305 (make_typename_type use) */
5306 tf_ptrmem_ok
= 1 << 4, /* pointers to member ok (internal
5307 instantiate_type use) */
5308 tf_user
= 1 << 5, /* found template must be a user template
5309 (lookup_template_class use) */
5310 tf_conv
= 1 << 6, /* We are determining what kind of
5311 conversion might be permissible,
5312 not actually performing the
5314 tf_decltype
= 1 << 7, /* We are the operand of decltype.
5315 Used to implement the special rules
5316 for calls in decltype (5.2.2/11). */
5317 tf_partial
= 1 << 8, /* Doing initial explicit argument
5318 substitution in fn_type_unification. */
5319 tf_fndecl_type
= 1 << 9, /* Substituting the type of a function
5321 tf_no_cleanup
= 1 << 10, /* Do not build a cleanup
5322 (build_target_expr and friends) */
5323 tf_norm
= 1 << 11, /* Build diagnostic information during
5324 constraint normalization. */
5325 /* Convenient substitution flags combinations. */
5326 tf_warning_or_error
= tf_warning
| tf_error
5329 /* This type is used for parameters and variables which hold
5330 combinations of the flags in enum tsubst_flags. */
5331 typedef int tsubst_flags_t
;
5333 /* The kind of checking we can do looking in a class hierarchy. */
5334 enum base_access_flags
{
5335 ba_any
= 0, /* Do not check access, allow an ambiguous base,
5336 prefer a non-virtual base */
5337 ba_unique
= 1 << 0, /* Must be a unique base. */
5338 ba_check_bit
= 1 << 1, /* Check access. */
5339 ba_check
= ba_unique
| ba_check_bit
,
5340 ba_ignore_scope
= 1 << 2 /* Ignore access allowed by local scope. */
5343 /* This type is used for parameters and variables which hold
5344 combinations of the flags in enum base_access_flags. */
5345 typedef int base_access
;
5347 /* The various kinds of access check during parsing. */
5348 enum deferring_kind
{
5349 dk_no_deferred
= 0, /* Check access immediately */
5350 dk_deferred
= 1, /* Deferred check */
5351 dk_no_check
= 2 /* No access check */
5354 /* The kind of base we can find, looking in a class hierarchy.
5355 Values <0 indicate we failed. */
5357 bk_inaccessible
= -3, /* The base is inaccessible */
5358 bk_ambig
= -2, /* The base is ambiguous */
5359 bk_not_base
= -1, /* It is not a base */
5360 bk_same_type
= 0, /* It is the same type */
5361 bk_proper_base
= 1, /* It is a proper base */
5362 bk_via_virtual
= 2 /* It is a proper base, but via a virtual
5363 path. This might not be the canonical
5367 /* Node for "pointer to (virtual) function".
5368 This may be distinct from ptr_type_node so gdb can distinguish them. */
5369 #define vfunc_ptr_type_node vtable_entry_type
5372 /* For building calls to `delete'. */
5373 extern GTY(()) tree integer_two_node
;
5375 /* The number of function bodies which we are currently processing.
5376 (Zero if we are at namespace scope, one inside the body of a
5377 function, two inside the body of a function in a local class, etc.) */
5378 extern int function_depth
;
5380 /* Nonzero if we are inside eq_specializations, which affects
5381 comparison of PARM_DECLs in cp_tree_equal and alias specializations
5382 in structrual_comptypes. */
5383 extern int comparing_specializations
;
5387 /* Nonzero if we are parsing an unevaluated operand: an operand to
5388 sizeof, typeof, or alignof. This is a count since operands to
5389 sizeof can be nested. */
5391 extern int cp_unevaluated_operand
;
5393 /* RAII class used to inhibit the evaluation of operands during parsing
5394 and template instantiation. Evaluation warnings are also inhibited. */
5396 class cp_unevaluated
5403 /* The reverse: an RAII class used for nested contexts that are evaluated even
5404 if the enclosing context is not. */
5412 : uneval(cp_unevaluated_operand
), inhibit(c_inhibit_evaluation_warnings
)
5413 { cp_unevaluated_operand
= c_inhibit_evaluation_warnings
= 0; }
5415 { cp_unevaluated_operand
= uneval
;
5416 c_inhibit_evaluation_warnings
= inhibit
; }
5421 /* These values are used for the `STRICT' parameter to type_unification and
5422 fn_type_unification. Their meanings are described with the
5423 documentation for fn_type_unification. */
5425 enum unification_kind_t
{
5431 // An RAII class used to create a new pointer map for local
5432 // specializations. When the stack goes out of scope, the
5433 // previous pointer map is restored.
5434 enum lss_policy
{ lss_blank
, lss_copy
, lss_nop
};
5435 class local_specialization_stack
5438 local_specialization_stack (lss_policy
= lss_blank
);
5439 ~local_specialization_stack ();
5441 hash_map
<tree
, tree
> *saved
;
5446 extern int current_class_depth
;
5450 /* An array of static vars & fns. */
5451 extern GTY(()) vec
<tree
, va_gc
> *static_decls
;
5453 /* An array of vtable-needing types that have no key function, or have
5454 an emitted key function. */
5455 extern GTY(()) vec
<tree
, va_gc
> *keyed_classes
;
5457 /* Here's where we control how name mangling takes place. */
5459 /* Cannot use '$' up front, because this confuses gdb
5460 (names beginning with '$' are gdb-local identifiers).
5462 Note that all forms in which the '$' is significant are long enough
5463 for direct indexing (meaning that if we know there is a '$'
5464 at a particular location, we can index into the string at
5465 any other location that provides distinguishing characters). */
5467 /* Define NO_DOT_IN_LABEL in your favorite tm file if your assembler
5468 doesn't allow '.' in symbol names. */
5469 #ifndef NO_DOT_IN_LABEL
5473 #define AUTO_TEMP_NAME "_.tmp_"
5474 #define VFIELD_BASE ".vf"
5475 #define VFIELD_NAME "_vptr."
5476 #define VFIELD_NAME_FORMAT "_vptr.%s"
5478 #else /* NO_DOT_IN_LABEL */
5480 #ifndef NO_DOLLAR_IN_LABEL
5484 #define AUTO_TEMP_NAME "_$tmp_"
5485 #define VFIELD_BASE "$vf"
5486 #define VFIELD_NAME "_vptr$"
5487 #define VFIELD_NAME_FORMAT "_vptr$%s"
5489 #else /* NO_DOLLAR_IN_LABEL */
5491 #define VTABLE_NAME "__vt_"
5492 #define VTABLE_NAME_P(ID_NODE) \
5493 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VTABLE_NAME, \
5494 sizeof (VTABLE_NAME) - 1))
5495 #define VFIELD_BASE "__vfb"
5496 #define VFIELD_NAME "__vptr_"
5497 #define VFIELD_NAME_P(ID_NODE) \
5498 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, \
5499 sizeof (VFIELD_NAME) - 1))
5500 #define VFIELD_NAME_FORMAT "__vptr_%s"
5502 #endif /* NO_DOLLAR_IN_LABEL */
5503 #endif /* NO_DOT_IN_LABEL */
5505 #define UDLIT_OP_ANSI_PREFIX "operator\"\""
5506 #define UDLIT_OP_ANSI_FORMAT UDLIT_OP_ANSI_PREFIX "%s"
5507 #define UDLIT_OP_MANGLED_PREFIX "li"
5508 #define UDLIT_OP_MANGLED_FORMAT UDLIT_OP_MANGLED_PREFIX "%s"
5509 #define UDLIT_OPER_P(ID_NODE) \
5510 (!strncmp (IDENTIFIER_POINTER (ID_NODE), \
5511 UDLIT_OP_ANSI_PREFIX, \
5512 sizeof (UDLIT_OP_ANSI_PREFIX) - 1))
5513 #define UDLIT_OP_SUFFIX(ID_NODE) \
5514 (IDENTIFIER_POINTER (ID_NODE) + sizeof (UDLIT_OP_ANSI_PREFIX) - 1)
5516 #if !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL)
5518 #define VTABLE_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == 'v' \
5519 && IDENTIFIER_POINTER (ID_NODE)[2] == 't' \
5520 && IDENTIFIER_POINTER (ID_NODE)[3] == JOINER)
5522 #define VFIELD_NAME_P(ID_NODE) \
5523 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, sizeof(VFIELD_NAME)-1))
5525 #endif /* !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) */
5528 /* Nonzero if we're done parsing and into end-of-file activities.
5529 Two if we're done with front-end processing. */
5533 /* True if note_mangling_alias should enqueue mangling aliases for
5534 later generation, rather than emitting them right away. */
5536 extern bool defer_mangling_aliases
;
5538 /* True if noexcept is part of the type (i.e. in C++17). */
5540 extern bool flag_noexcept_type
;
5542 /* A list of namespace-scope objects which have constructors or
5543 destructors which reside in the global scope. The decl is stored
5544 in the TREE_VALUE slot and the initializer is stored in the
5545 TREE_PURPOSE slot. */
5546 extern GTY(()) tree static_aggregates
;
5547 /* Likewise, for thread local storage. */
5548 extern GTY(()) tree tls_aggregates
;
5550 enum overload_flags
{ NO_SPECIAL
= 0, DTOR_FLAG
, TYPENAME_FLAG
};
5552 /* These are uses as bits in flags passed to various functions to
5553 control their behavior. Despite the LOOKUP_ prefix, many of these
5554 do not control name lookup. ??? Functions using these flags should
5555 probably be modified to accept explicit boolean flags for the
5556 behaviors relevant to them. */
5557 /* Check for access violations. */
5558 #define LOOKUP_PROTECT (1 << 0)
5559 #define LOOKUP_NORMAL (LOOKUP_PROTECT)
5560 /* Even if the function found by lookup is a virtual function, it
5561 should be called directly. */
5562 #define LOOKUP_NONVIRTUAL (1 << 1)
5563 /* Non-converting (i.e., "explicit") constructors are not tried. This flag
5564 indicates that we are not performing direct-initialization. */
5565 #define LOOKUP_ONLYCONVERTING (1 << 2)
5566 #define LOOKUP_IMPLICIT (LOOKUP_NORMAL | LOOKUP_ONLYCONVERTING)
5567 /* If a temporary is created, it should be created so that it lives
5568 as long as the current variable bindings; otherwise it only lives
5569 until the end of the complete-expression. It also forces
5570 direct-initialization in cases where other parts of the compiler
5571 have already generated a temporary, such as reference
5572 initialization and the catch parameter. */
5573 #define DIRECT_BIND (1 << 3)
5574 /* We're performing a user-defined conversion, so more user-defined
5575 conversions are not permitted (only built-in conversions). */
5576 #define LOOKUP_NO_CONVERSION (1 << 4)
5577 /* The user has explicitly called a destructor. (Therefore, we do
5578 not need to check that the object is non-NULL before calling the
5580 #define LOOKUP_DESTRUCTOR (1 << 5)
5581 /* Do not permit references to bind to temporaries. */
5582 #define LOOKUP_NO_TEMP_BIND (1 << 6)
5583 /* We're trying to treat an lvalue as an rvalue. */
5584 /* FIXME remove when we extend the P1825 semantics to all standard modes, the
5585 C++20 approach uses IMPLICIT_RVALUE_P instead. */
5586 #define LOOKUP_PREFER_RVALUE (LOOKUP_NO_TEMP_BIND << 1)
5587 /* We're inside an init-list, so narrowing conversions are ill-formed. */
5588 #define LOOKUP_NO_NARROWING (LOOKUP_PREFER_RVALUE << 1)
5589 /* We're looking up a constructor for list-initialization. */
5590 #define LOOKUP_LIST_INIT_CTOR (LOOKUP_NO_NARROWING << 1)
5591 /* This is the first parameter of a copy constructor. */
5592 #define LOOKUP_COPY_PARM (LOOKUP_LIST_INIT_CTOR << 1)
5593 /* We only want to consider list constructors. */
5594 #define LOOKUP_LIST_ONLY (LOOKUP_COPY_PARM << 1)
5595 /* Return after determining which function to call and checking access.
5596 Used by sythesized_method_walk to determine which functions will
5597 be called to initialize subobjects, in order to determine exception
5598 specification and possible implicit delete.
5599 This is kind of a hack, but exiting early avoids problems with trying
5600 to perform argument conversions when the class isn't complete yet. */
5601 #define LOOKUP_SPECULATIVE (LOOKUP_LIST_ONLY << 1)
5602 /* Used by calls from defaulted functions to limit the overload set to avoid
5603 cycles trying to declare them (core issue 1092). */
5604 #define LOOKUP_DEFAULTED (LOOKUP_SPECULATIVE << 1)
5605 /* Used in calls to store_init_value to suppress its usual call to
5607 #define LOOKUP_ALREADY_DIGESTED (LOOKUP_DEFAULTED << 1)
5608 /* Like LOOKUP_NO_TEMP_BIND, but also prevent binding to xvalues. */
5609 #define LOOKUP_NO_RVAL_BIND (LOOKUP_ALREADY_DIGESTED << 1)
5610 /* Used by case_conversion to disregard non-integral conversions. */
5611 #define LOOKUP_NO_NON_INTEGRAL (LOOKUP_NO_RVAL_BIND << 1)
5612 /* Used for delegating constructors in order to diagnose self-delegation. */
5613 #define LOOKUP_DELEGATING_CONS (LOOKUP_NO_NON_INTEGRAL << 1)
5614 /* Allow initialization of a flexible array members. */
5615 #define LOOKUP_ALLOW_FLEXARRAY_INIT (LOOKUP_DELEGATING_CONS << 1)
5616 /* We're looking for either a rewritten comparison operator candidate or the
5617 operator to use on the former's result. We distinguish between the two by
5618 knowing that comparisons other than == and <=> must be the latter, as must
5619 a <=> expression trying to rewrite to <=> without reversing. */
5620 #define LOOKUP_REWRITTEN (LOOKUP_ALLOW_FLEXARRAY_INIT << 1)
5621 /* Reverse the order of the two arguments for comparison rewriting. First we
5622 swap the arguments in add_operator_candidates, then we swap the conversions
5623 in add_candidate (so that they correspond to the original order of the
5624 args), then we swap the conversions back in build_new_op_1 (so they
5625 correspond to the order of the args in the candidate). */
5626 #define LOOKUP_REVERSED (LOOKUP_REWRITTEN << 1)
5627 /* We're initializing an aggregate from a parenthesized list of values. */
5628 #define LOOKUP_AGGREGATE_PAREN_INIT (LOOKUP_REVERSED << 1)
5630 /* These flags are used by the conversion code.
5631 CONV_IMPLICIT : Perform implicit conversions (standard and user-defined).
5632 CONV_STATIC : Perform the explicit conversions for static_cast.
5633 CONV_CONST : Perform the explicit conversions for const_cast.
5634 CONV_REINTERPRET: Perform the explicit conversions for reinterpret_cast.
5635 CONV_PRIVATE : Perform upcasts to private bases.
5636 CONV_FORCE_TEMP : Require a new temporary when converting to the same
5639 #define CONV_IMPLICIT 1
5640 #define CONV_STATIC 2
5641 #define CONV_CONST 4
5642 #define CONV_REINTERPRET 8
5643 #define CONV_PRIVATE 16
5644 #define CONV_FORCE_TEMP 32
5645 #define CONV_FOLD 64
5646 #define CONV_OLD_CONVERT (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
5648 #define CONV_C_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
5649 | CONV_REINTERPRET | CONV_PRIVATE | CONV_FORCE_TEMP)
5650 #define CONV_BACKEND_CONVERT (CONV_OLD_CONVERT | CONV_FOLD)
5652 /* Used by build_expr_type_conversion to indicate which types are
5653 acceptable as arguments to the expression under consideration. */
5655 #define WANT_INT 1 /* integer types, including bool */
5656 #define WANT_FLOAT 2 /* floating point types */
5657 #define WANT_ENUM 4 /* enumerated types */
5658 #define WANT_POINTER 8 /* pointer types */
5659 #define WANT_NULL 16 /* null pointer constant */
5660 #define WANT_VECTOR_OR_COMPLEX 32 /* vector or complex types */
5661 #define WANT_ARITH (WANT_INT | WANT_FLOAT | WANT_VECTOR_OR_COMPLEX)
5663 /* Used with comptypes, and related functions, to guide type
5666 #define COMPARE_STRICT 0 /* Just check if the types are the
5668 #define COMPARE_BASE 1 /* Check to see if the second type is
5669 derived from the first. */
5670 #define COMPARE_DERIVED 2 /* Like COMPARE_BASE, but in
5672 #define COMPARE_REDECLARATION 4 /* The comparison is being done when
5673 another declaration of an existing
5675 #define COMPARE_STRUCTURAL 8 /* The comparison is intended to be
5676 structural. The actual comparison
5677 will be identical to
5680 /* Used with start function. */
5681 #define SF_DEFAULT 0 /* No flags. */
5682 #define SF_PRE_PARSED 1 /* The function declaration has
5683 already been parsed. */
5684 #define SF_INCLASS_INLINE 2 /* The function is an inline, defined
5685 in the class body. */
5687 /* Used with start_decl's initialized parameter. */
5688 #define SD_UNINITIALIZED 0
5689 #define SD_INITIALIZED 1
5690 /* Like SD_INITIALIZED, but also mark the new decl as DECL_DECOMPOSITION_P. */
5691 #define SD_DECOMPOSITION 2
5692 #define SD_DEFAULTED 3
5693 #define SD_DELETED 4
5695 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, or if TYPE2
5696 is derived from TYPE1, or if TYPE2 is a pointer (reference) to a
5697 class derived from the type pointed to (referred to) by TYPE1. */
5698 #define same_or_base_type_p(TYPE1, TYPE2) \
5699 comptypes ((TYPE1), (TYPE2), COMPARE_BASE)
5701 /* These macros are used to access a TEMPLATE_PARM_INDEX. */
5702 #define TEMPLATE_PARM_INDEX_CAST(NODE) \
5703 ((template_parm_index*)TEMPLATE_PARM_INDEX_CHECK (NODE))
5704 #define TEMPLATE_PARM_IDX(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->index)
5705 #define TEMPLATE_PARM_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->level)
5706 #define TEMPLATE_PARM_DESCENDANTS(NODE) (TREE_CHAIN (NODE))
5707 #define TEMPLATE_PARM_ORIG_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->orig_level)
5708 #define TEMPLATE_PARM_DECL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->decl)
5709 #define TEMPLATE_PARM_PARAMETER_PACK(NODE) \
5710 (TREE_LANG_FLAG_0 (TEMPLATE_PARM_INDEX_CHECK (NODE)))
5712 /* These macros are for accessing the fields of TEMPLATE_TYPE_PARM,
5713 TEMPLATE_TEMPLATE_PARM and BOUND_TEMPLATE_TEMPLATE_PARM nodes. */
5714 #define TEMPLATE_TYPE_PARM_INDEX(NODE) \
5715 (TYPE_VALUES_RAW (TREE_CHECK3 ((NODE), TEMPLATE_TYPE_PARM, \
5716 TEMPLATE_TEMPLATE_PARM, \
5717 BOUND_TEMPLATE_TEMPLATE_PARM)))
5718 #define TEMPLATE_TYPE_IDX(NODE) \
5719 (TEMPLATE_PARM_IDX (TEMPLATE_TYPE_PARM_INDEX (NODE)))
5720 #define TEMPLATE_TYPE_LEVEL(NODE) \
5721 (TEMPLATE_PARM_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
5722 #define TEMPLATE_TYPE_ORIG_LEVEL(NODE) \
5723 (TEMPLATE_PARM_ORIG_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
5724 #define TEMPLATE_TYPE_DECL(NODE) \
5725 (TEMPLATE_PARM_DECL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
5726 #define TEMPLATE_TYPE_PARAMETER_PACK(NODE) \
5727 (TEMPLATE_PARM_PARAMETER_PACK (TEMPLATE_TYPE_PARM_INDEX (NODE)))
5729 /* For a C++17 class deduction placeholder, the template it represents. */
5730 #define CLASS_PLACEHOLDER_TEMPLATE(NODE) \
5731 (DECL_INITIAL (TYPE_NAME (TEMPLATE_TYPE_PARM_CHECK (NODE))))
5733 /* Contexts in which auto deduction occurs. These flags are
5734 used to control diagnostics in do_auto_deduction. */
5736 enum auto_deduction_context
5738 adc_unspecified
, /* Not given */
5739 adc_variable_type
, /* Variable initializer deduction */
5740 adc_return_type
, /* Return type deduction */
5741 adc_unify
, /* Template argument deduction */
5742 adc_requirement
, /* Argument deduction constraint */
5743 adc_decomp_type
/* Decomposition declaration initializer deduction */
5746 /* True if this type-parameter belongs to a class template, used by C++17
5747 class template argument deduction. */
5748 #define TEMPLATE_TYPE_PARM_FOR_CLASS(NODE) \
5749 (TREE_LANG_FLAG_0 (TEMPLATE_TYPE_PARM_CHECK (NODE)))
5751 /* True iff this TEMPLATE_TYPE_PARM represents decltype(auto). */
5752 #define AUTO_IS_DECLTYPE(NODE) \
5753 (TYPE_LANG_FLAG_5 (TEMPLATE_TYPE_PARM_CHECK (NODE)))
5755 /* These constants can used as bit flags in the process of tree formatting.
5757 TFF_PLAIN_IDENTIFIER: unqualified part of a name.
5758 TFF_SCOPE: include the class and namespace scope of the name.
5759 TFF_CHASE_TYPEDEF: print the original type-id instead of the typedef-name.
5760 TFF_DECL_SPECIFIERS: print decl-specifiers.
5761 TFF_CLASS_KEY_OR_ENUM: precede a class-type name (resp. enum name) with
5762 a class-key (resp. `enum').
5763 TFF_RETURN_TYPE: include function return type.
5764 TFF_FUNCTION_DEFAULT_ARGUMENTS: include function default parameter values.
5765 TFF_EXCEPTION_SPECIFICATION: show function exception specification.
5766 TFF_TEMPLATE_HEADER: show the template<...> header in a
5767 template-declaration.
5768 TFF_TEMPLATE_NAME: show only template-name.
5769 TFF_EXPR_IN_PARENS: parenthesize expressions.
5770 TFF_NO_FUNCTION_ARGUMENTS: don't show function arguments.
5771 TFF_UNQUALIFIED_NAME: do not print the qualifying scope of the
5773 TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS: do not omit template arguments
5774 identical to their defaults.
5775 TFF_NO_TEMPLATE_BINDINGS: do not print information about the template
5776 arguments for a function template specialization.
5777 TFF_POINTER: we are printing a pointer type. */
5779 #define TFF_PLAIN_IDENTIFIER (0)
5780 #define TFF_SCOPE (1)
5781 #define TFF_CHASE_TYPEDEF (1 << 1)
5782 #define TFF_DECL_SPECIFIERS (1 << 2)
5783 #define TFF_CLASS_KEY_OR_ENUM (1 << 3)
5784 #define TFF_RETURN_TYPE (1 << 4)
5785 #define TFF_FUNCTION_DEFAULT_ARGUMENTS (1 << 5)
5786 #define TFF_EXCEPTION_SPECIFICATION (1 << 6)
5787 #define TFF_TEMPLATE_HEADER (1 << 7)
5788 #define TFF_TEMPLATE_NAME (1 << 8)
5789 #define TFF_EXPR_IN_PARENS (1 << 9)
5790 #define TFF_NO_FUNCTION_ARGUMENTS (1 << 10)
5791 #define TFF_UNQUALIFIED_NAME (1 << 11)
5792 #define TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS (1 << 12)
5793 #define TFF_NO_TEMPLATE_BINDINGS (1 << 13)
5794 #define TFF_POINTER (1 << 14)
5796 /* These constants can be used as bit flags to control strip_typedefs.
5798 STF_USER_VISIBLE: use heuristics to try to avoid stripping user-facing
5799 aliases of internal details. This is intended for diagnostics,
5800 where it should (for example) give more useful "aka" types.
5802 STF_STRIP_DEPENDENT: allow the stripping of aliases with dependent
5803 template parameters, relying on code elsewhere to report any
5804 appropriate diagnostics. */
5805 const unsigned int STF_USER_VISIBLE
= 1U;
5806 const unsigned int STF_STRIP_DEPENDENT
= 1U << 1;
5808 /* Returns the TEMPLATE_DECL associated to a TEMPLATE_TEMPLATE_PARM
5810 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_DECL(NODE) \
5811 ((TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM) \
5812 ? TYPE_TI_TEMPLATE (NODE) \
5817 extern void init_reswords (void);
5819 /* Various flags for the overloaded operator information. */
5821 OVL_OP_FLAG_NONE
= 0, /* Don't care. */
5822 OVL_OP_FLAG_UNARY
= 1, /* Is unary. */
5823 OVL_OP_FLAG_BINARY
= 2, /* Is binary. */
5824 OVL_OP_FLAG_AMBIARY
= 3, /* May be unary or binary. */
5825 OVL_OP_FLAG_ALLOC
= 4, /* operator new or delete. */
5826 OVL_OP_FLAG_DELETE
= 1, /* operator delete. */
5827 OVL_OP_FLAG_VEC
= 2 /* vector new or delete. */
5830 /* Compressed operator codes. Order is determined by operators.def
5831 and does not match that of tree_codes. */
5835 #define DEF_OPERATOR(NAME, CODE, MANGLING, FLAGS) OVL_OP_##CODE,
5836 #define DEF_ASSN_OPERATOR(NAME, CODE, MANGLING) /* NOTHING */
5837 #include "operators.def"
5841 struct GTY(()) ovl_op_info_t
{
5842 /* The IDENTIFIER_NODE for the operator. */
5844 /* The name of the operator. */
5846 /* The mangled name of the operator. */
5847 const char *mangled_name
;
5848 /* The (regular) tree code. */
5849 enum tree_code tree_code
: 16;
5850 /* The (compressed) operator code. */
5851 enum ovl_op_code ovl_op_code
: 8;
5852 /* The ovl_op_flags of the operator */
5856 /* Overloaded operator info indexed by ass_op_p & ovl_op_code. */
5857 extern GTY(()) ovl_op_info_t ovl_op_info
[2][OVL_OP_MAX
];
5858 /* Mapping from tree_codes to ovl_op_codes. */
5859 extern GTY(()) unsigned char ovl_op_mapping
[MAX_TREE_CODES
];
5860 /* Mapping for ambi-ary operators from the binary to the unary. */
5861 extern GTY(()) unsigned char ovl_op_alternate
[OVL_OP_MAX
];
5863 /* Given an ass_op_p boolean and a tree code, return a pointer to its
5864 overloaded operator info. Tree codes for non-overloaded operators
5865 map to the error-operator. */
5866 #define OVL_OP_INFO(IS_ASS_P, TREE_CODE) \
5867 (&ovl_op_info[(IS_ASS_P) != 0][ovl_op_mapping[(TREE_CODE)]])
5868 /* Overloaded operator info for an identifier for which
5869 IDENTIFIER_OVL_OP_P is true. */
5870 #define IDENTIFIER_OVL_OP_INFO(NODE) \
5871 (&ovl_op_info[IDENTIFIER_KIND_BIT_0 (NODE)][IDENTIFIER_CP_INDEX (NODE)])
5872 #define IDENTIFIER_OVL_OP_FLAGS(NODE) \
5873 (IDENTIFIER_OVL_OP_INFO (NODE)->flags)
5875 inline tree
ovl_op_identifier (bool isass
, tree_code code
)
5876 { return OVL_OP_INFO(isass
, code
)->identifier
; }
5877 inline tree
ovl_op_identifier (tree_code code
) { return ovl_op_identifier (false, code
); }
5878 #define assign_op_identifier (ovl_op_info[true][OVL_OP_NOP_EXPR].identifier)
5879 #define call_op_identifier (ovl_op_info[false][OVL_OP_CALL_EXPR].identifier)
5881 /* A type-qualifier, or bitmask therefore, using the TYPE_QUAL
5884 typedef int cp_cv_quals
;
5886 /* Non-static member functions have an optional virt-specifier-seq.
5887 There is a VIRT_SPEC value for each virt-specifier.
5888 They can be combined by bitwise-or to form the complete set of
5889 virt-specifiers for a member function. */
5892 VIRT_SPEC_UNSPECIFIED
= 0x0,
5893 VIRT_SPEC_FINAL
= 0x1,
5894 VIRT_SPEC_OVERRIDE
= 0x2
5897 /* A type-qualifier, or bitmask therefore, using the VIRT_SPEC
5900 typedef int cp_virt_specifiers
;
5902 /* Wherever there is a function-cv-qual, there could also be a ref-qualifier:
5905 The return type, the parameter-type-list, the ref-qualifier, and
5906 the cv-qualifier-seq, but not the default arguments or the exception
5907 specification, are part of the function type.
5909 REF_QUAL_NONE Ordinary member function with no ref-qualifier
5910 REF_QUAL_LVALUE Member function with the &-ref-qualifier
5911 REF_QUAL_RVALUE Member function with the &&-ref-qualifier */
5913 enum cp_ref_qualifier
{
5915 REF_QUAL_LVALUE
= 1,
5919 /* A storage class. */
5921 enum cp_storage_class
{
5922 /* sc_none must be zero so that zeroing a cp_decl_specifier_seq
5923 sets the storage_class field to sc_none. */
5932 /* An individual decl-specifier. This is used to index the array of
5933 locations for the declspecs in struct cp_decl_specifier_seq
5938 ds_signed
= ds_first
,
5957 ds_redefined_builtin_type_spec
,
5963 ds_last
/* This enumerator must always be the last one. */
5966 /* A decl-specifier-seq. */
5968 struct cp_decl_specifier_seq
{
5969 /* An array of locations for the declaration sepecifiers, indexed by
5970 enum cp_decl_spec_word. */
5971 location_t locations
[ds_last
];
5972 /* The primary type, if any, given by the decl-specifier-seq.
5973 Modifiers, like "short", "const", and "unsigned" are not
5974 reflected here. This field will be a TYPE, unless a typedef-name
5975 was used, in which case it will be a TYPE_DECL. */
5977 /* The attributes, if any, provided with the specifier sequence. */
5979 /* The c++11 attributes that follows the type specifier. */
5980 tree std_attributes
;
5981 /* If non-NULL, a built-in type that the user attempted to redefine
5982 to some other type. */
5983 tree redefined_builtin_type
;
5984 /* The explicit-specifier, if any. */
5985 tree explicit_specifier
;
5986 /* The storage class specified -- or sc_none if no storage class was
5987 explicitly specified. */
5988 cp_storage_class storage_class
;
5989 /* For the __intN declspec, this stores the index into the int_n_* arrays. */
5991 /* True iff TYPE_SPEC defines a class or enum. */
5992 BOOL_BITFIELD type_definition_p
: 1;
5993 /* True iff multiple types were (erroneously) specified for this
5994 decl-specifier-seq. */
5995 BOOL_BITFIELD multiple_types_p
: 1;
5996 /* True iff multiple storage classes were (erroneously) specified
5997 for this decl-specifier-seq or a combination of a storage class
5998 with a typedef specifier. */
5999 BOOL_BITFIELD conflicting_specifiers_p
: 1;
6000 /* True iff at least one decl-specifier was found. */
6001 BOOL_BITFIELD any_specifiers_p
: 1;
6002 /* True iff at least one type-specifier was found. */
6003 BOOL_BITFIELD any_type_specifiers_p
: 1;
6004 /* True iff "int" was explicitly provided. */
6005 BOOL_BITFIELD explicit_int_p
: 1;
6006 /* True iff "__intN" was explicitly provided. */
6007 BOOL_BITFIELD explicit_intN_p
: 1;
6008 /* True iff "char" was explicitly provided. */
6009 BOOL_BITFIELD explicit_char_p
: 1;
6010 /* True iff ds_thread is set for __thread, not thread_local. */
6011 BOOL_BITFIELD gnu_thread_keyword_p
: 1;
6012 /* True iff the type is a decltype. */
6013 BOOL_BITFIELD decltype_p
: 1;
6014 /* True iff the alternate "__intN__" form of the __intN type has been
6016 BOOL_BITFIELD int_n_alt
: 1;
6019 /* The various kinds of declarators. */
6021 enum cp_declarator_kind
{
6034 typedef struct cp_declarator cp_declarator
;
6036 typedef struct cp_parameter_declarator cp_parameter_declarator
;
6038 /* A parameter, before it has been semantically analyzed. */
6039 struct cp_parameter_declarator
{
6040 /* The next parameter, or NULL_TREE if none. */
6041 cp_parameter_declarator
*next
;
6042 /* The decl-specifiers-seq for the parameter. */
6043 cp_decl_specifier_seq decl_specifiers
;
6044 /* The declarator for the parameter. */
6045 cp_declarator
*declarator
;
6046 /* The default-argument expression, or NULL_TREE, if none. */
6047 tree default_argument
;
6048 /* True iff this is a template parameter pack. */
6049 bool template_parameter_pack_p
;
6050 /* Location within source. */
6055 struct cp_declarator
{
6056 /* The kind of declarator. */
6057 ENUM_BITFIELD (cp_declarator_kind
) kind
: 4;
6058 /* Whether we parsed an ellipsis (`...') just before the declarator,
6059 to indicate this is a parameter pack. */
6060 BOOL_BITFIELD parameter_pack_p
: 1;
6061 /* If this declarator is parenthesized, this the open-paren. It is
6062 UNKNOWN_LOCATION when not parenthesized. */
6063 location_t parenthesized
;
6065 location_t id_loc
; /* Currently only set for cdk_id, cdk_decomp and
6067 /* GNU Attributes that apply to this declarator. If the declarator
6068 is a pointer or a reference, these attribute apply to the type
6071 /* Standard C++11 attributes that apply to this declarator. If the
6072 declarator is a pointer or a reference, these attributes apply
6073 to the pointer, rather than to the type pointed to. */
6074 tree std_attributes
;
6075 /* For all but cdk_id, cdk_decomp and cdk_error, the contained declarator.
6076 For cdk_id, cdk_decomp and cdk_error, guaranteed to be NULL. */
6077 cp_declarator
*declarator
;
6079 /* For identifiers. */
6081 /* If non-NULL, the qualifying scope (a NAMESPACE_DECL or
6082 *_TYPE) for this identifier. */
6083 tree qualifying_scope
;
6084 /* The unqualified name of the entity -- an IDENTIFIER_NODE,
6085 BIT_NOT_EXPR, or TEMPLATE_ID_EXPR. */
6086 tree unqualified_name
;
6087 /* If this is the name of a function, what kind of special
6088 function (if any). */
6089 special_function_kind sfk
;
6091 /* For functions. */
6093 /* The parameters to the function as a TREE_LIST of decl/default. */
6095 /* The cv-qualifiers for the function. */
6096 cp_cv_quals qualifiers
;
6097 /* The virt-specifiers for the function. */
6098 cp_virt_specifiers virt_specifiers
;
6099 /* The ref-qualifier for the function. */
6100 cp_ref_qualifier ref_qualifier
;
6101 /* The transaction-safety qualifier for the function. */
6103 /* The exception-specification for the function. */
6104 tree exception_specification
;
6105 /* The late-specified return type, if any. */
6106 tree late_return_type
;
6107 /* The trailing requires-clause, if any. */
6108 tree requires_clause
;
6112 /* The bounds to the array. */
6115 /* For cdk_pointer and cdk_ptrmem. */
6117 /* The cv-qualifiers for the pointer. */
6118 cp_cv_quals qualifiers
;
6119 /* For cdk_ptrmem, the class type containing the member. */
6122 /* For cdk_reference */
6124 /* The cv-qualifiers for the reference. These qualifiers are
6125 only used to diagnose ill-formed code. */
6126 cp_cv_quals qualifiers
;
6127 /* Whether this is an rvalue reference */
6133 /* A level of template instantiation. */
6134 struct GTY((chain_next ("%h.next"))) tinst_level
{
6135 /* The immediately deeper level in the chain. */
6136 struct tinst_level
*next
;
6138 /* The original node. TLDCL can be a DECL (for a function or static
6139 data member), a TYPE (for a class), depending on what we were
6140 asked to instantiate, or a TREE_LIST with the template as PURPOSE
6141 and the template args as VALUE, if we are substituting for
6142 overload resolution. In all these cases, TARGS is NULL.
6143 However, to avoid creating TREE_LIST objects for substitutions if
6144 we can help, we store PURPOSE and VALUE in TLDCL and TARGS,
6145 respectively. So TLDCL stands for TREE_LIST or DECL (the
6146 template is a DECL too), whereas TARGS stands for the template
6151 /* Return TRUE iff the original node is a split list. */
6152 bool split_list_p () const { return targs
; }
6154 /* Return TRUE iff the original node is a TREE_LIST object. */
6155 bool tree_list_p () const
6157 return !split_list_p () && TREE_CODE (tldcl
) == TREE_LIST
;
6160 /* Return TRUE iff the original node is not a list, split or not. */
6161 bool not_list_p () const
6163 return !split_list_p () && !tree_list_p ();
6166 /* Convert (in place) the original node from a split list to a
6171 /* Release storage for OBJ and node, if it's a TREE_LIST. */
6172 static void free (tinst_level
*obj
);
6174 /* Return TRUE iff the original node is a list, split or not. */
6175 bool list_p () const { return !not_list_p (); }
6177 /* Return the original node; if it's a split list, make it a
6178 TREE_LIST first, so that it can be returned as a single tree
6181 if (!split_list_p ()) return tldcl
;
6182 else return to_list ();
6185 /* Return the original node if it's a DECL or a TREE_LIST, but do
6186 NOT convert a split list to a TREE_LIST: return NULL instead. */
6187 tree
maybe_get_node () const {
6188 if (!split_list_p ()) return tldcl
;
6189 else return NULL_TREE
;
6192 /* The location where the template is instantiated. */
6195 /* errorcount + sorrycount when we pushed this level. */
6196 unsigned short errors
;
6198 /* Count references to this object. If refcount reaches
6199 refcount_infinity value, we don't increment or decrement the
6200 refcount anymore, as the refcount isn't accurate anymore.
6201 The object can be still garbage collected if unreferenced from
6202 anywhere, which might keep referenced objects referenced longer than
6203 otherwise necessary. Hitting the infinity is rare though. */
6204 unsigned short refcount
;
6206 /* Infinity value for the above refcount. */
6207 static const unsigned short refcount_infinity
= (unsigned short) ~0;
6210 /* BUILT_IN_FRONTEND function codes. */
6211 enum cp_built_in_function
{
6212 CP_BUILT_IN_IS_CONSTANT_EVALUATED
,
6213 CP_BUILT_IN_INTEGER_PACK
,
6214 CP_BUILT_IN_SOURCE_LOCATION
,
6218 bool decl_spec_seq_has_spec_p (const cp_decl_specifier_seq
*, cp_decl_spec
);
6220 /* Return the type of the `this' parameter of FNTYPE. */
6223 type_of_this_parm (const_tree fntype
)
6225 function_args_iterator iter
;
6226 gcc_assert (TREE_CODE (fntype
) == METHOD_TYPE
);
6227 function_args_iter_init (&iter
, fntype
);
6228 return function_args_iter_cond (&iter
);
6231 /* Return the class of the `this' parameter of FNTYPE. */
6234 class_of_this_parm (const_tree fntype
)
6236 return TREE_TYPE (type_of_this_parm (fntype
));
6239 /* A parameter list indicating for a function with no parameters,
6240 e.g "int f(void)". */
6241 extern cp_parameter_declarator
*no_parameters
;
6243 /* Various dump ids. */
6244 extern int class_dump_id
;
6245 extern int raw_dump_id
;
6248 extern bool check_dtor_name (tree
, tree
);
6249 int magic_varargs_p (tree
);
6251 extern tree
build_conditional_expr (const op_location_t
&,
6254 extern tree
build_addr_func (tree
, tsubst_flags_t
);
6255 extern void set_flags_from_callee (tree
);
6256 extern tree
build_call_a (tree
, int, tree
*);
6257 extern tree
build_call_n (tree
, int, ...);
6258 extern bool null_ptr_cst_p (tree
);
6259 extern bool null_member_pointer_value_p (tree
);
6260 extern bool sufficient_parms_p (const_tree
);
6261 extern tree
type_decays_to (tree
);
6262 extern tree
extract_call_expr (tree
);
6263 extern tree
build_trivial_dtor_call (tree
, bool = false);
6264 extern tree
build_user_type_conversion (tree
, tree
, int,
6266 extern tree
build_new_function_call (tree
, vec
<tree
, va_gc
> **,
6268 extern tree
build_operator_new_call (tree
, vec
<tree
, va_gc
> **,
6269 tree
*, tree
*, tree
, tree
,
6270 tree
*, tsubst_flags_t
);
6271 extern tree
build_new_method_call (tree
, tree
,
6272 vec
<tree
, va_gc
> **, tree
,
6273 int, tree
*, tsubst_flags_t
);
6274 extern tree
build_special_member_call (tree
, tree
,
6275 vec
<tree
, va_gc
> **,
6276 tree
, int, tsubst_flags_t
);
6277 extern tree
build_new_op (const op_location_t
&,
6279 int, tree
, tree
, tree
, tree
*,
6281 extern tree
build_op_call (tree
, vec
<tree
, va_gc
> **,
6283 extern bool aligned_allocation_fn_p (tree
);
6284 extern tree
destroying_delete_p (tree
);
6285 extern bool usual_deallocation_fn_p (tree
);
6286 extern tree
build_op_delete_call (enum tree_code
, tree
, tree
,
6289 extern bool can_convert (tree
, tree
, tsubst_flags_t
);
6290 extern bool can_convert_standard (tree
, tree
, tsubst_flags_t
);
6291 extern bool can_convert_arg (tree
, tree
, tree
, int,
6293 extern bool can_convert_arg_bad (tree
, tree
, tree
, int,
6295 extern int conv_flags (int, int, tree
, tree
, int);
6296 extern struct conversion
* good_conversion (tree
, tree
, tree
, int, tsubst_flags_t
);
6297 extern location_t
get_fndecl_argument_location (tree
, int);
6298 extern void complain_about_bad_argument (location_t arg_loc
,
6299 tree from_type
, tree to_type
,
6300 tree fndecl
, int parmnum
);
6301 extern void maybe_inform_about_fndecl_for_bogus_argument_init (tree
, int);
6304 /* A class for recording information about access failures (e.g. private
6305 fields), so that we can potentially supply a fix-it hint about
6306 an accessor (from a context in which the constness of the object
6309 class access_failure_info
6312 access_failure_info () : m_was_inaccessible (false),
6313 m_basetype_path (NULL_TREE
),
6314 m_decl (NULL_TREE
), m_diag_decl (NULL_TREE
) {}
6316 void record_access_failure (tree basetype_path
, tree decl
, tree diag_decl
);
6318 bool was_inaccessible_p () const { return m_was_inaccessible
; }
6319 tree
get_decl () const { return m_decl
; }
6320 tree
get_diag_decl () const { return m_diag_decl
; }
6321 tree
get_any_accessor (bool const_p
) const;
6322 void maybe_suggest_accessor (bool const_p
) const;
6323 static void add_fixit_hint (rich_location
*richloc
, tree accessor
);
6326 bool m_was_inaccessible
;
6327 tree m_basetype_path
;
6332 extern void complain_about_access (tree
, tree
, bool);
6333 extern void push_defarg_context (tree
);
6334 extern void pop_defarg_context (void);
6335 extern tree
convert_default_arg (tree
, tree
, tree
, int,
6337 extern tree
convert_arg_to_ellipsis (tree
, tsubst_flags_t
);
6338 extern tree
build_x_va_arg (location_t
, tree
, tree
);
6339 extern tree
cxx_type_promotes_to (tree
);
6340 extern tree
type_passed_as (tree
);
6341 extern tree
convert_for_arg_passing (tree
, tree
, tsubst_flags_t
);
6342 extern bool is_properly_derived_from (tree
, tree
);
6343 extern tree
initialize_reference (tree
, tree
, int,
6345 extern tree
extend_ref_init_temps (tree
, tree
,
6348 extern tree
make_temporary_var_for_ref_to_temp (tree
, tree
);
6349 extern bool type_has_extended_temps (tree
);
6350 extern tree
strip_top_quals (tree
);
6351 extern bool reference_related_p (tree
, tree
);
6352 extern bool reference_compatible_p (tree
, tree
);
6353 extern int remaining_arguments (tree
);
6354 extern tree
perform_implicit_conversion (tree
, tree
, tsubst_flags_t
);
6355 extern tree
perform_implicit_conversion_flags (tree
, tree
, tsubst_flags_t
, int);
6356 extern tree
build_converted_constant_expr (tree
, tree
, tsubst_flags_t
);
6357 extern tree
build_converted_constant_bool_expr (tree
, tsubst_flags_t
);
6358 extern tree
perform_direct_initialization_if_possible (tree
, tree
, bool,
6360 extern vec
<tree
,va_gc
> *resolve_args (vec
<tree
,va_gc
>*, tsubst_flags_t
);
6361 extern tree
in_charge_arg_for_name (tree
);
6362 extern tree
build_cxx_call (tree
, int, tree
*,
6365 extern bool is_std_init_list (tree
);
6366 extern bool is_list_ctor (tree
);
6367 extern void validate_conversion_obstack (void);
6368 extern void mark_versions_used (tree
);
6369 extern bool unsafe_return_slot_p (tree
);
6370 extern bool cp_warn_deprecated_use (tree
, tsubst_flags_t
= tf_warning_or_error
);
6371 extern void cp_warn_deprecated_use_scopes (tree
);
6372 extern tree
get_function_version_dispatcher (tree
);
6375 extern tree
build_vfield_ref (tree
, tree
);
6376 extern tree
build_if_in_charge (tree true_stmt
, tree false_stmt
= void_node
);
6377 extern tree
build_base_path (enum tree_code
, tree
,
6378 tree
, int, tsubst_flags_t
);
6379 extern tree
convert_to_base (tree
, tree
, bool, bool,
6381 extern tree
convert_to_base_statically (tree
, tree
);
6382 extern tree
build_vtbl_ref (tree
, tree
);
6383 extern tree
build_vfn_ref (tree
, tree
);
6384 extern tree
get_vtable_decl (tree
, int);
6385 extern bool add_method (tree
, tree
, bool);
6386 extern tree
declared_access (tree
);
6387 extern tree
currently_open_class (tree
);
6388 extern tree
currently_open_derived_class (tree
);
6389 extern tree
outermost_open_class (void);
6390 extern tree
current_nonlambda_class_type (void);
6391 extern tree
finish_struct (tree
, tree
);
6392 extern void finish_struct_1 (tree
);
6393 extern int resolves_to_fixed_type_p (tree
, int * = NULL
);
6394 extern void init_class_processing (void);
6395 extern int is_empty_class (tree
);
6396 extern bool is_really_empty_class (tree
, bool);
6397 extern void pushclass (tree
);
6398 extern void popclass (void);
6399 extern void push_nested_class (tree
);
6400 extern void pop_nested_class (void);
6401 extern int current_lang_depth (void);
6402 extern void push_lang_context (tree
);
6403 extern void pop_lang_context (void);
6404 extern tree
instantiate_type (tree
, tree
, tsubst_flags_t
);
6405 extern void build_self_reference (void);
6406 extern int same_signature_p (const_tree
, const_tree
);
6407 extern tree
lookup_vfn_in_binfo (tree
, tree
);
6408 extern void maybe_add_class_template_decl_list (tree
, tree
, int);
6409 extern void unreverse_member_declarations (tree
);
6410 extern void invalidate_class_lookup_cache (void);
6411 extern void maybe_note_name_used_in_class (tree
, tree
);
6412 extern void note_name_declared_in_class (tree
, tree
);
6413 extern tree
get_vtbl_decl_for_binfo (tree
);
6414 extern bool vptr_via_virtual_p (tree
);
6415 extern void debug_class (tree
);
6416 extern void debug_thunks (tree
);
6417 extern void set_linkage_according_to_type (tree
, tree
);
6418 extern void determine_key_method (tree
);
6419 extern void check_for_override (tree
, tree
);
6420 extern void push_class_stack (void);
6421 extern void pop_class_stack (void);
6422 extern bool default_ctor_p (const_tree
);
6423 extern bool type_has_user_nondefault_constructor (tree
);
6424 extern tree
in_class_defaulted_default_constructor (tree
);
6425 extern bool user_provided_p (tree
);
6426 extern bool type_has_user_provided_constructor (tree
);
6427 extern bool type_has_non_user_provided_default_constructor (tree
);
6428 extern bool vbase_has_user_provided_move_assign (tree
);
6429 extern tree
default_init_uninitialized_part (tree
);
6430 extern bool trivial_default_constructor_is_constexpr (tree
);
6431 extern bool type_has_constexpr_default_constructor (tree
);
6432 extern bool type_has_constexpr_destructor (tree
);
6433 extern bool type_has_virtual_destructor (tree
);
6434 extern bool classtype_has_move_assign_or_move_ctor_p (tree
, bool user_declared
);
6435 extern bool classtype_has_non_deleted_move_ctor (tree
);
6436 extern bool classtype_has_non_deleted_copy_ctor (tree
);
6437 extern tree
classtype_has_depr_implicit_copy (tree
);
6438 extern bool classtype_has_op (tree
, tree_code
);
6439 extern tree
classtype_has_defaulted_op (tree
, tree_code
);
6440 extern bool type_build_ctor_call (tree
);
6441 extern bool type_build_dtor_call (tree
);
6442 extern void explain_non_literal_class (tree
);
6443 extern void inherit_targ_abi_tags (tree
);
6444 extern void defaulted_late_check (tree
);
6445 extern bool defaultable_fn_check (tree
);
6446 extern void check_abi_tags (tree
);
6447 extern tree
missing_abi_tags (tree
);
6448 extern void fixup_type_variants (tree
);
6449 extern void fixup_attribute_variants (tree
);
6450 extern void clone_cdtor (tree
, bool);
6451 extern tree
copy_operator_fn (tree
, tree_code code
);
6452 extern void adjust_clone_args (tree
);
6453 extern void deduce_noexcept_on_destructor (tree
);
6454 extern bool uniquely_derived_from_p (tree
, tree
);
6455 extern bool publicly_uniquely_derived_p (tree
, tree
);
6456 extern tree
common_enclosing_class (tree
, tree
);
6459 extern tree
convert_to_reference (tree
, tree
, int, int, tree
,
6461 extern tree
convert_from_reference (tree
);
6462 extern tree
force_rvalue (tree
, tsubst_flags_t
);
6463 extern tree
ocp_convert (tree
, tree
, int, int,
6465 extern tree
cp_convert (tree
, tree
, tsubst_flags_t
);
6466 extern tree
cp_convert_and_check (tree
, tree
, tsubst_flags_t
);
6467 extern tree
cp_fold_convert (tree
, tree
);
6468 extern tree
cp_get_callee (tree
);
6469 extern tree
cp_get_callee_fndecl (tree
);
6470 extern tree
cp_get_callee_fndecl_nofold (tree
);
6471 extern tree
cp_get_fndecl_from_callee (tree
, bool fold
= true);
6472 extern tree
convert_to_void (tree
, impl_conv_void
,
6474 extern tree
convert_force (tree
, tree
, int,
6476 extern tree
build_expr_type_conversion (int, tree
, bool);
6477 extern tree
type_promotes_to (tree
);
6478 extern bool can_convert_qual (tree
, tree
);
6479 extern tree
perform_qualification_conversions (tree
, tree
);
6480 extern bool tx_safe_fn_type_p (tree
);
6481 extern tree
tx_unsafe_fn_variant (tree
);
6482 extern bool fnptr_conv_p (tree
, tree
);
6483 extern tree
strip_fnptr_conv (tree
);
6485 /* in name-lookup.c */
6486 extern void maybe_push_cleanup_level (tree
);
6487 extern tree
maybe_push_decl (tree
);
6488 extern tree
current_decl_namespace (void);
6491 extern tree
poplevel (int, int, int);
6492 extern void cxx_init_decl_processing (void);
6493 enum cp_tree_node_structure_enum cp_tree_node_structure
6494 (union lang_tree_node
*);
6495 extern void finish_scope (void);
6496 extern void push_switch (tree
);
6497 extern void pop_switch (void);
6498 extern void note_break_stmt (void);
6499 extern bool note_iteration_stmt_body_start (void);
6500 extern void note_iteration_stmt_body_end (bool);
6501 extern void determine_local_discriminator (tree
);
6502 extern int decls_match (tree
, tree
, bool = true);
6503 extern bool maybe_version_functions (tree
, tree
, bool);
6504 extern tree
duplicate_decls (tree
, tree
, bool);
6505 extern tree
declare_local_label (tree
);
6506 extern tree
define_label (location_t
, tree
);
6507 extern void check_goto (tree
);
6508 extern bool check_omp_return (void);
6509 extern tree
make_typename_type (tree
, tree
, enum tag_types
, tsubst_flags_t
);
6510 extern tree
build_typename_type (tree
, tree
, tree
, tag_types
);
6511 extern tree
make_unbound_class_template (tree
, tree
, tree
, tsubst_flags_t
);
6512 extern tree
build_library_fn_ptr (const char *, tree
, int);
6513 extern tree
build_cp_library_fn_ptr (const char *, tree
, int);
6514 extern tree
push_library_fn (tree
, tree
, tree
, int);
6515 extern tree
push_void_library_fn (tree
, tree
, int);
6516 extern tree
push_throw_library_fn (tree
, tree
);
6517 extern void warn_misplaced_attr_for_class_type (location_t location
,
6519 extern tree
check_tag_decl (cp_decl_specifier_seq
*, bool);
6520 extern tree
shadow_tag (cp_decl_specifier_seq
*);
6521 extern tree
groktypename (cp_decl_specifier_seq
*, const cp_declarator
*, bool);
6522 extern tree
start_decl (const cp_declarator
*, cp_decl_specifier_seq
*, int, tree
, tree
, tree
*);
6523 extern void start_decl_1 (tree
, bool);
6524 extern bool check_array_initializer (tree
, tree
, tree
);
6525 extern void omp_declare_variant_finalize (tree
, tree
);
6526 extern void cp_finish_decl (tree
, tree
, bool, tree
, int);
6527 extern tree
lookup_decomp_type (tree
);
6528 extern void cp_maybe_mangle_decomp (tree
, tree
, unsigned int);
6529 extern void cp_finish_decomp (tree
, tree
, unsigned int);
6530 extern int cp_complete_array_type (tree
*, tree
, bool);
6531 extern int cp_complete_array_type_or_error (tree
*, tree
, bool, tsubst_flags_t
);
6532 extern tree
build_ptrmemfunc_type (tree
);
6533 extern tree
build_ptrmem_type (tree
, tree
);
6534 /* the grokdeclarator prototype is in decl.h */
6535 extern tree
build_this_parm (tree
, tree
, cp_cv_quals
);
6536 extern tree
grokparms (tree
, tree
*);
6537 extern int copy_fn_p (const_tree
);
6538 extern bool move_fn_p (const_tree
);
6539 extern bool move_signature_fn_p (const_tree
);
6540 extern tree
get_scope_of_declarator (const cp_declarator
*);
6541 extern void grok_special_member_properties (tree
);
6542 extern bool grok_ctor_properties (const_tree
, const_tree
);
6543 extern bool grok_op_properties (tree
, bool);
6544 extern tree
xref_tag (enum tag_types
, tree
, tag_scope
, bool);
6545 extern tree
xref_tag_from_type (tree
, tree
, tag_scope
);
6546 extern void xref_basetypes (tree
, tree
);
6547 extern tree
start_enum (tree
, tree
, tree
, tree
, bool, bool *);
6548 extern void finish_enum_value_list (tree
);
6549 extern void finish_enum (tree
);
6550 extern void build_enumerator (tree
, tree
, tree
, tree
, location_t
);
6551 extern tree
lookup_enumerator (tree
, tree
);
6552 extern bool start_preparsed_function (tree
, tree
, int);
6553 extern bool start_function (cp_decl_specifier_seq
*,
6554 const cp_declarator
*, tree
);
6555 extern tree
begin_function_body (void);
6556 extern void finish_function_body (tree
);
6557 extern tree
outer_curly_brace_block (tree
);
6558 extern tree
finish_function (bool);
6559 extern tree
grokmethod (cp_decl_specifier_seq
*, const cp_declarator
*, tree
);
6560 extern void maybe_register_incomplete_var (tree
);
6561 extern void maybe_commonize_var (tree
);
6562 extern void complete_vars (tree
);
6563 extern tree
static_fn_type (tree
);
6564 extern void revert_static_member_fn (tree
);
6565 extern void fixup_anonymous_aggr (tree
);
6566 extern tree
compute_array_index_type (tree
, tree
, tsubst_flags_t
);
6567 extern tree
check_default_argument (tree
, tree
, tsubst_flags_t
);
6568 extern int wrapup_namespace_globals ();
6569 extern tree
create_implicit_typedef (tree
, tree
);
6570 extern int local_variable_p (const_tree
);
6571 extern tree
register_dtor_fn (tree
);
6572 extern tmpl_spec_kind
current_tmpl_spec_kind (int);
6573 extern tree
cp_fname_init (const char *, tree
*);
6574 extern tree
cxx_builtin_function (tree decl
);
6575 extern tree
cxx_builtin_function_ext_scope (tree decl
);
6576 extern tree
cxx_simulate_builtin_function_decl (tree
);
6577 extern tree
check_elaborated_type_specifier (enum tag_types
, tree
, bool);
6578 extern void warn_extern_redeclared_static (tree
, tree
);
6579 extern tree
cxx_comdat_group (tree
);
6580 extern bool cp_missing_noreturn_ok_p (tree
);
6581 extern bool is_direct_enum_init (tree
, tree
);
6582 extern void initialize_artificial_var (tree
, vec
<constructor_elt
, va_gc
> *);
6583 extern tree
check_var_type (tree
, tree
, location_t
);
6584 extern tree
reshape_init (tree
, tree
, tsubst_flags_t
);
6585 extern tree
next_initializable_field (tree
);
6586 extern tree
fndecl_declared_return_type (tree
);
6587 extern bool undeduced_auto_decl (tree
);
6588 extern bool require_deduced_type (tree
, tsubst_flags_t
= tf_warning_or_error
);
6590 extern tree
finish_case_label (location_t
, tree
, tree
);
6591 extern tree
cxx_maybe_build_cleanup (tree
, tsubst_flags_t
);
6592 extern bool check_array_designated_initializer (constructor_elt
*,
6593 unsigned HOST_WIDE_INT
);
6594 extern bool check_for_uninitialized_const_var (tree
, bool, tsubst_flags_t
);
6595 extern tree
build_explicit_specifier (tree
, tsubst_flags_t
);
6596 extern void do_push_parm_decls (tree
, tree
, tree
*);
6597 extern tree
do_aggregate_paren_init (tree
, tree
);
6600 extern void record_mangling (tree
, bool);
6601 extern void overwrite_mangling (tree
, tree
);
6602 extern void note_mangling_alias (tree
, tree
);
6603 extern void generate_mangling_aliases (void);
6604 extern tree
build_memfn_type (tree
, tree
, cp_cv_quals
, cp_ref_qualifier
);
6605 extern tree
build_pointer_ptrmemfn_type (tree
);
6606 extern tree
change_return_type (tree
, tree
);
6607 extern void maybe_retrofit_in_chrg (tree
);
6608 extern void maybe_make_one_only (tree
);
6609 extern bool vague_linkage_p (tree
);
6610 extern void grokclassfn (tree
, tree
,
6611 enum overload_flags
);
6612 extern tree
grok_array_decl (location_t
, tree
, tree
, bool);
6613 extern tree
delete_sanity (location_t
, tree
, tree
, bool,
6614 int, tsubst_flags_t
);
6615 extern tree
check_classfn (tree
, tree
, tree
);
6616 extern void check_member_template (tree
);
6617 extern tree
grokfield (const cp_declarator
*, cp_decl_specifier_seq
*,
6618 tree
, bool, tree
, tree
);
6619 extern tree
grokbitfield (const cp_declarator
*, cp_decl_specifier_seq
*,
6621 extern tree
splice_template_attributes (tree
*, tree
);
6622 extern bool any_dependent_type_attributes_p (tree
);
6623 extern tree
cp_reconstruct_complex_type (tree
, tree
);
6624 extern bool attributes_naming_typedef_ok (tree
);
6625 extern void cplus_decl_attributes (tree
*, tree
, int);
6626 extern void finish_anon_union (tree
);
6627 extern void cxx_post_compilation_parsing_cleanups (void);
6628 extern tree
coerce_new_type (tree
, location_t
);
6629 extern void coerce_delete_type (tree
, location_t
);
6630 extern void comdat_linkage (tree
);
6631 extern void determine_visibility (tree
);
6632 extern void constrain_class_visibility (tree
);
6633 extern void reset_type_linkage (tree
);
6634 extern void tentative_decl_linkage (tree
);
6635 extern void import_export_decl (tree
);
6636 extern tree
build_cleanup (tree
);
6637 extern tree
build_offset_ref_call_from_tree (tree
, vec
<tree
, va_gc
> **,
6639 extern bool decl_defined_p (tree
);
6640 extern bool decl_constant_var_p (tree
);
6641 extern bool decl_maybe_constant_var_p (tree
);
6642 extern void no_linkage_error (tree
);
6643 extern void check_default_args (tree
);
6644 extern bool mark_used (tree
);
6645 extern bool mark_used (tree
, tsubst_flags_t
);
6646 extern void finish_static_data_member_decl (tree
, tree
, bool, tree
, int);
6647 extern tree
cp_build_parm_decl (tree
, tree
, tree
);
6648 extern void copy_linkage (tree
, tree
);
6649 extern tree
get_guard (tree
);
6650 extern tree
get_guard_cond (tree
, bool);
6651 extern tree
set_guard (tree
);
6652 extern tree
maybe_get_tls_wrapper_call (tree
);
6653 extern void mark_needed (tree
);
6654 extern bool decl_needed_p (tree
);
6655 extern void note_vague_linkage_fn (tree
);
6656 extern void note_variable_template_instantiation (tree
);
6657 extern tree
build_artificial_parm (tree
, tree
, tree
);
6658 extern bool possibly_inlined_p (tree
);
6659 extern int parm_index (tree
);
6660 extern tree
vtv_start_verification_constructor_init_function (void);
6661 extern tree
vtv_finish_verification_constructor_init_function (tree
);
6662 extern bool cp_omp_mappable_type (tree
);
6663 extern bool cp_omp_emit_unmappable_type_notes (tree
);
6664 extern void cp_check_const_attributes (tree
);
6667 extern const char *type_as_string (tree
, int);
6668 extern const char *type_as_string_translate (tree
, int);
6669 extern const char *decl_as_string (tree
, int);
6670 extern const char *decl_as_string_translate (tree
, int);
6671 extern const char *decl_as_dwarf_string (tree
, int);
6672 extern const char *expr_as_string (tree
, int);
6673 extern const char *expr_to_string (tree
);
6674 extern const char *lang_decl_name (tree
, int, bool);
6675 extern const char *lang_decl_dwarf_name (tree
, int, bool);
6676 extern const char *language_to_string (enum languages
);
6677 extern const char *class_key_or_enum_as_string (tree
);
6678 extern void maybe_warn_variadic_templates (void);
6679 extern void maybe_warn_cpp0x (cpp0x_warn_str str
);
6680 extern bool pedwarn_cxx98 (location_t
, int, const char *, ...) ATTRIBUTE_GCC_DIAG(3,4);
6681 extern location_t
location_of (tree
);
6682 extern void qualified_name_lookup_error (tree
, tree
, tree
,
6686 extern void init_exception_processing (void);
6687 extern tree
expand_start_catch_block (tree
);
6688 extern void expand_end_catch_block (void);
6689 extern tree
build_exc_ptr (void);
6690 extern tree
build_throw (location_t
, tree
);
6691 extern int nothrow_libfn_p (const_tree
);
6692 extern void check_handlers (tree
);
6693 extern tree
finish_noexcept_expr (tree
, tsubst_flags_t
);
6694 extern bool expr_noexcept_p (tree
, tsubst_flags_t
);
6695 extern void perform_deferred_noexcept_checks (void);
6696 extern bool nothrow_spec_p (const_tree
);
6697 extern bool type_noexcept_p (const_tree
);
6698 extern bool type_throw_all_p (const_tree
);
6699 extern tree
build_noexcept_spec (tree
, tsubst_flags_t
);
6700 extern void choose_personality_routine (enum languages
);
6701 extern tree
build_must_not_throw_expr (tree
,tree
);
6702 extern tree
eh_type_info (tree
);
6703 extern tree
begin_eh_spec_block (void);
6704 extern void finish_eh_spec_block (tree
, tree
);
6705 extern tree
build_eh_type_type (tree
);
6706 extern tree
cp_protect_cleanup_actions (void);
6707 extern void maybe_splice_retval_cleanup (tree
);
6708 extern tree
maybe_set_retval_sentinel (void);
6710 extern tree
template_parms_to_args (tree
);
6711 extern tree
template_parms_level_to_args (tree
);
6712 extern tree
generic_targs_for (tree
);
6715 extern tree
cplus_expand_constant (tree
);
6716 extern tree
mark_use (tree expr
, bool rvalue_p
, bool read_p
,
6717 location_t
= UNKNOWN_LOCATION
,
6718 bool reject_builtin
= true);
6719 extern tree
mark_rvalue_use (tree
,
6720 location_t
= UNKNOWN_LOCATION
,
6721 bool reject_builtin
= true);
6722 extern tree
mark_lvalue_use (tree
);
6723 extern tree
mark_lvalue_use_nonread (tree
);
6724 extern tree
mark_type_use (tree
);
6725 extern tree
mark_discarded_use (tree
);
6726 extern void mark_exp_read (tree
);
6729 extern int is_friend (tree
, tree
);
6730 extern void make_friend_class (tree
, tree
, bool);
6731 extern void add_friend (tree
, tree
, bool);
6732 extern tree
do_friend (tree
, tree
, tree
, tree
,
6733 enum overload_flags
, bool);
6735 extern void set_global_friend (tree
);
6736 extern bool is_global_friend (tree
);
6739 extern tree
expand_member_init (tree
);
6740 extern void emit_mem_initializers (tree
);
6741 extern tree
build_aggr_init (tree
, tree
, int,
6743 extern int is_class_type (tree
, int);
6744 extern tree
get_type_value (tree
);
6745 extern tree
build_zero_init (tree
, tree
, bool);
6746 extern tree
build_value_init (tree
, tsubst_flags_t
);
6747 extern tree
build_value_init_noctor (tree
, tsubst_flags_t
);
6748 extern tree
get_nsdmi (tree
, bool, tsubst_flags_t
);
6749 extern tree
build_offset_ref (tree
, tree
, bool,
6751 extern tree
throw_bad_array_new_length (void);
6752 extern bool type_has_new_extended_alignment (tree
);
6753 extern unsigned malloc_alignment (void);
6754 extern tree
build_new_constexpr_heap_type (tree
, tree
, tree
);
6755 extern tree
build_new (location_t
,
6756 vec
<tree
, va_gc
> **, tree
,
6757 tree
, vec
<tree
, va_gc
> **,
6758 int, tsubst_flags_t
);
6759 extern tree
get_temp_regvar (tree
, tree
);
6760 extern tree
build_vec_init (tree
, tree
, tree
, bool, int,
6762 extern tree
build_delete (location_t
, tree
, tree
,
6763 special_function_kind
,
6764 int, int, tsubst_flags_t
);
6765 extern void push_base_cleanups (void);
6766 extern tree
build_vec_delete (location_t
, tree
, tree
,
6767 special_function_kind
, int,
6769 extern tree
create_temporary_var (tree
);
6770 extern void initialize_vtbl_ptrs (tree
);
6771 extern tree
scalar_constant_value (tree
);
6772 extern tree
decl_constant_value (tree
, bool);
6773 extern tree
decl_really_constant_value (tree
, bool = true);
6774 extern int diagnose_uninitialized_cst_or_ref_member (tree
, bool, bool);
6775 extern tree
build_vtbl_address (tree
);
6776 extern bool maybe_reject_flexarray_init (tree
, tree
);
6779 extern void cxx_dup_lang_specific_decl (tree
);
6780 extern tree
unqualified_name_lookup_error (tree
,
6781 location_t
= UNKNOWN_LOCATION
);
6782 extern tree
unqualified_fn_lookup_error (cp_expr
);
6783 extern tree
make_conv_op_name (tree
);
6784 extern tree
build_lang_decl (enum tree_code
, tree
, tree
);
6785 extern tree
build_lang_decl_loc (location_t
, enum tree_code
, tree
, tree
);
6786 extern void retrofit_lang_decl (tree
);
6787 extern void fit_decomposition_lang_decl (tree
, tree
);
6788 extern tree
copy_decl (tree CXX_MEM_STAT_INFO
);
6789 extern tree
copy_type (tree CXX_MEM_STAT_INFO
);
6790 extern tree
cxx_make_type (enum tree_code CXX_MEM_STAT_INFO
);
6791 extern tree
make_class_type (enum tree_code CXX_MEM_STAT_INFO
);
6792 extern const char *get_identifier_kind_name (tree
);
6793 extern void set_identifier_kind (tree
, cp_identifier_kind
);
6794 extern bool cxx_init (void);
6795 extern void cxx_finish (void);
6796 extern bool in_main_input_context (void);
6799 extern void init_method (void);
6800 extern tree
make_thunk (tree
, bool, tree
, tree
);
6801 extern void finish_thunk (tree
);
6802 extern void use_thunk (tree
, bool);
6803 extern bool trivial_fn_p (tree
);
6804 extern tree
forward_parm (tree
);
6805 extern bool is_trivially_xible (enum tree_code
, tree
, tree
);
6806 extern bool is_xible (enum tree_code
, tree
, tree
);
6807 extern tree
get_defaulted_eh_spec (tree
, tsubst_flags_t
= tf_warning_or_error
);
6808 extern bool maybe_explain_implicit_delete (tree
);
6809 extern void explain_implicit_non_constexpr (tree
);
6810 extern void deduce_inheriting_ctor (tree
);
6811 extern bool decl_remember_implicit_trigger_p (tree
);
6812 extern void synthesize_method (tree
);
6813 extern tree
lazily_declare_fn (special_function_kind
,
6815 extern tree
skip_artificial_parms_for (const_tree
, tree
);
6816 extern int num_artificial_parms_for (const_tree
);
6817 extern tree
make_alias_for (tree
, tree
);
6818 extern tree
get_copy_ctor (tree
, tsubst_flags_t
);
6819 extern tree
get_copy_assign (tree
);
6820 extern tree
get_default_ctor (tree
);
6821 extern tree
get_dtor (tree
, tsubst_flags_t
);
6822 extern tree
strip_inheriting_ctors (tree
);
6823 extern tree
inherited_ctor_binfo (tree
);
6824 extern bool ctor_omit_inherited_parms (tree
);
6825 extern tree
locate_ctor (tree
);
6826 extern tree
implicitly_declare_fn (special_function_kind
, tree
,
6830 extern bool maybe_clone_body (tree
);
6833 extern tree
cp_convert_range_for (tree
, tree
, tree
, tree
, unsigned int, bool,
6835 extern void cp_convert_omp_range_for (tree
&, vec
<tree
, va_gc
> *, tree
&,
6836 tree
&, tree
&, tree
&, tree
&, tree
&);
6837 extern void cp_finish_omp_range_for (tree
, tree
);
6838 extern bool parsing_nsdmi (void);
6839 extern bool parsing_default_capturing_generic_lambda_in_template (void);
6840 extern void inject_this_parameter (tree
, cp_cv_quals
);
6841 extern location_t
defparse_location (tree
);
6842 extern void maybe_show_extern_c_location (void);
6843 extern bool literal_integer_zerop (const_tree
);
6846 extern void push_access_scope (tree
);
6847 extern void pop_access_scope (tree
);
6848 extern bool check_template_shadow (tree
);
6849 extern bool check_auto_in_tmpl_args (tree
, tree
);
6850 extern tree
get_innermost_template_args (tree
, int);
6851 extern void maybe_begin_member_template_processing (tree
);
6852 extern void maybe_end_member_template_processing (void);
6853 extern tree
finish_member_template_decl (tree
);
6854 extern void begin_template_parm_list (void);
6855 extern bool begin_specialization (void);
6856 extern void reset_specialization (void);
6857 extern void end_specialization (void);
6858 extern void begin_explicit_instantiation (void);
6859 extern void end_explicit_instantiation (void);
6860 extern void check_unqualified_spec_or_inst (tree
, location_t
);
6861 extern tree
check_explicit_specialization (tree
, tree
, int, int,
6863 extern int num_template_headers_for_class (tree
);
6864 extern void check_template_variable (tree
);
6865 extern tree
make_auto (void);
6866 extern tree
make_decltype_auto (void);
6867 extern tree
make_constrained_auto (tree
, tree
);
6868 extern tree
make_constrained_decltype_auto (tree
, tree
);
6869 extern tree
make_template_placeholder (tree
);
6870 extern bool template_placeholder_p (tree
);
6871 extern bool ctad_template_p (tree
);
6872 extern tree
do_auto_deduction (tree
, tree
, tree
,
6874 = tf_warning_or_error
,
6875 auto_deduction_context
6878 int = LOOKUP_NORMAL
);
6879 extern tree
type_uses_auto (tree
);
6880 extern tree
type_uses_auto_or_concept (tree
);
6881 extern void append_type_to_template_for_access_check (tree
, tree
, tree
,
6883 extern tree
convert_generic_types_to_packs (tree
, int, int);
6884 extern tree
splice_late_return_type (tree
, tree
);
6885 extern bool is_auto (const_tree
);
6886 extern tree
process_template_parm (tree
, location_t
, tree
,
6888 extern tree
end_template_parm_list (tree
);
6889 extern void end_template_parm_list (void);
6890 extern void end_template_decl (void);
6891 extern tree
maybe_update_decl_type (tree
, tree
);
6892 extern bool check_default_tmpl_args (tree
, tree
, bool, bool, int);
6893 extern tree
push_template_decl (tree
);
6894 extern tree
push_template_decl_real (tree
, bool);
6895 extern tree
add_inherited_template_parms (tree
, tree
);
6896 extern void template_parm_level_and_index (tree
, int*, int*);
6897 extern bool redeclare_class_template (tree
, tree
, tree
);
6898 extern tree
lookup_template_class (tree
, tree
, tree
, tree
,
6899 int, tsubst_flags_t
);
6900 extern tree
lookup_template_function (tree
, tree
);
6901 extern tree
lookup_template_variable (tree
, tree
);
6902 extern int uses_template_parms (tree
);
6903 extern bool uses_template_parms_level (tree
, int);
6904 extern bool in_template_function (void);
6905 extern bool need_generic_capture (void);
6906 extern tree
instantiate_class_template (tree
);
6907 extern tree
instantiate_template (tree
, tree
, tsubst_flags_t
);
6908 extern tree
fn_type_unification (tree
, tree
, tree
,
6909 const tree
*, unsigned int,
6910 tree
, unification_kind_t
, int,
6911 struct conversion
**,
6913 extern void mark_decl_instantiated (tree
, int);
6914 extern int more_specialized_fn (tree
, tree
, int);
6915 extern void do_decl_instantiation (tree
, tree
);
6916 extern void do_type_instantiation (tree
, tree
, tsubst_flags_t
);
6917 extern bool always_instantiate_p (tree
);
6918 extern bool maybe_instantiate_noexcept (tree
, tsubst_flags_t
= tf_warning_or_error
);
6919 extern tree
instantiate_decl (tree
, bool, bool);
6920 extern void maybe_instantiate_decl (tree
);
6921 extern int comp_template_parms (const_tree
, const_tree
);
6922 extern bool template_heads_equivalent_p (const_tree
, const_tree
);
6923 extern bool builtin_pack_fn_p (tree
);
6924 extern tree
uses_parameter_packs (tree
);
6925 extern bool template_parameter_pack_p (const_tree
);
6926 extern bool function_parameter_pack_p (const_tree
);
6927 extern bool function_parameter_expanded_from_pack_p (tree
, tree
);
6928 extern tree
make_pack_expansion (tree
, tsubst_flags_t
= tf_warning_or_error
);
6929 extern bool check_for_bare_parameter_packs (tree
, location_t
= UNKNOWN_LOCATION
);
6930 extern tree
build_template_info (tree
, tree
);
6931 extern tree
get_template_info (const_tree
);
6932 extern int template_class_depth (tree
);
6933 extern int is_specialization_of (tree
, tree
);
6934 extern bool is_specialization_of_friend (tree
, tree
);
6935 extern tree
get_pattern_parm (tree
, tree
);
6936 extern int comp_template_args (tree
, tree
, tree
* = NULL
,
6937 tree
* = NULL
, bool = false);
6938 extern int template_args_equal (tree
, tree
, bool = false);
6939 extern tree
maybe_process_partial_specialization (tree
);
6940 extern tree
most_specialized_instantiation (tree
);
6941 extern tree
most_specialized_partial_spec (tree
, tsubst_flags_t
);
6942 extern void print_candidates (tree
);
6943 extern void instantiate_pending_templates (int);
6944 extern tree
tsubst_default_argument (tree
, int, tree
, tree
,
6946 extern tree
tsubst (tree
, tree
, tsubst_flags_t
, tree
);
6947 extern tree
tsubst_copy_and_build (tree
, tree
, tsubst_flags_t
,
6948 tree
, bool = false, bool = false);
6949 extern tree
tsubst_expr (tree
, tree
, tsubst_flags_t
,
6951 extern tree
tsubst_pack_expansion (tree
, tree
, tsubst_flags_t
, tree
);
6952 extern tree
tsubst_argument_pack (tree
, tree
, tsubst_flags_t
, tree
);
6953 extern tree
tsubst_template_args (tree
, tree
, tsubst_flags_t
, tree
);
6954 extern tree
tsubst_template_arg (tree
, tree
, tsubst_flags_t
, tree
);
6955 extern tree
tsubst_function_parms (tree
, tree
, tsubst_flags_t
, tree
);
6956 extern tree
most_general_template (tree
);
6957 extern tree
get_mostly_instantiated_function_type (tree
);
6958 extern bool problematic_instantiation_changed (void);
6959 extern void record_last_problematic_instantiation (void);
6960 extern struct tinst_level
*current_instantiation(void);
6961 extern bool instantiating_current_function_p (void);
6962 extern tree
maybe_get_template_decl_from_type_decl (tree
);
6963 extern int processing_template_parmlist
;
6964 extern bool dependent_type_p (tree
);
6965 extern bool dependent_scope_p (tree
);
6966 extern bool any_dependent_template_arguments_p (const_tree
);
6967 extern bool any_erroneous_template_args_p (const_tree
);
6968 extern bool dependent_template_p (tree
);
6969 extern bool dependent_template_id_p (tree
, tree
);
6970 extern bool type_dependent_expression_p (tree
);
6971 extern bool type_dependent_object_expression_p (tree
);
6972 extern bool any_type_dependent_arguments_p (const vec
<tree
, va_gc
> *);
6973 extern bool any_type_dependent_elements_p (const_tree
);
6974 extern bool type_dependent_expression_p_push (tree
);
6975 extern bool value_dependent_expression_p (tree
);
6976 extern bool instantiation_dependent_expression_p (tree
);
6977 extern bool instantiation_dependent_uneval_expression_p (tree
);
6978 extern bool any_value_dependent_elements_p (const_tree
);
6979 extern bool dependent_omp_for_p (tree
, tree
, tree
, tree
);
6980 extern tree
resolve_typename_type (tree
, bool);
6981 extern tree
template_for_substitution (tree
);
6982 extern tree
build_non_dependent_expr (tree
);
6983 extern void make_args_non_dependent (vec
<tree
, va_gc
> *);
6984 extern bool reregister_specialization (tree
, tree
, tree
);
6985 extern tree
instantiate_non_dependent_expr (tree
);
6986 extern tree
instantiate_non_dependent_expr_sfinae (tree
, tsubst_flags_t
);
6987 extern tree
instantiate_non_dependent_expr_internal (tree
, tsubst_flags_t
);
6988 extern tree
instantiate_non_dependent_or_null (tree
);
6989 extern bool variable_template_specialization_p (tree
);
6990 extern bool alias_type_or_template_p (tree
);
6991 enum { nt_opaque
= false, nt_transparent
= true };
6992 extern tree
alias_template_specialization_p (const_tree
, bool);
6993 extern tree
dependent_alias_template_spec_p (const_tree
, bool);
6994 extern bool template_parm_object_p (const_tree
);
6995 extern tree
tparm_object_argument (tree
);
6996 extern bool explicit_class_specialization_p (tree
);
6997 extern bool push_tinst_level (tree
);
6998 extern bool push_tinst_level (tree
, tree
);
6999 extern bool push_tinst_level_loc (tree
, location_t
);
7000 extern bool push_tinst_level_loc (tree
, tree
, location_t
);
7001 extern void pop_tinst_level (void);
7002 extern struct tinst_level
*outermost_tinst_level(void);
7003 extern void init_template_processing (void);
7004 extern void print_template_statistics (void);
7005 bool template_template_parameter_p (const_tree
);
7006 bool template_type_parameter_p (const_tree
);
7007 extern bool primary_template_specialization_p (const_tree
);
7008 extern tree
get_primary_template_innermost_parameters (const_tree
);
7009 extern tree
get_template_parms_at_level (tree
, int);
7010 extern tree
get_template_innermost_arguments (const_tree
);
7011 extern tree
get_template_argument_pack_elems (const_tree
);
7012 extern tree
get_function_template_decl (const_tree
);
7013 extern tree
resolve_nondeduced_context (tree
, tsubst_flags_t
);
7014 extern tree
resolve_nondeduced_context_or_error (tree
, tsubst_flags_t
);
7015 extern hashval_t
iterative_hash_template_arg (tree arg
, hashval_t val
);
7016 extern tree
coerce_template_parms (tree
, tree
, tree
);
7017 extern tree
coerce_template_parms (tree
, tree
, tree
, tsubst_flags_t
);
7018 extern tree
canonicalize_type_argument (tree
, tsubst_flags_t
);
7019 extern void register_local_specialization (tree
, tree
);
7020 extern tree
retrieve_local_specialization (tree
);
7021 extern tree
extract_fnparm_pack (tree
, tree
*);
7022 extern tree
template_parm_to_arg (tree
);
7023 extern tree
dguide_name (tree
);
7024 extern bool dguide_name_p (tree
);
7025 extern bool deduction_guide_p (const_tree
);
7026 extern bool copy_guide_p (const_tree
);
7027 extern bool template_guide_p (const_tree
);
7028 extern bool builtin_guide_p (const_tree
);
7029 extern void store_explicit_specifier (tree
, tree
);
7030 extern tree
add_outermost_template_args (tree
, tree
);
7031 extern tree
add_extra_args (tree
, tree
);
7032 extern tree
build_extra_args (tree
, tree
, tsubst_flags_t
);
7035 /* A vector of all tinfo decls that haven't been emitted yet. */
7036 extern GTY(()) vec
<tree
, va_gc
> *unemitted_tinfo_decls
;
7038 extern void init_rtti_processing (void);
7039 extern tree
build_typeid (tree
, tsubst_flags_t
);
7040 extern tree
get_tinfo_decl (tree
);
7041 extern tree
get_typeid (tree
, tsubst_flags_t
);
7042 extern tree
build_headof (tree
);
7043 extern tree
build_dynamic_cast (location_t
, tree
, tree
,
7045 extern void emit_support_tinfos (void);
7046 extern bool emit_tinfo_decl (tree
);
7049 extern bool accessible_base_p (tree
, tree
, bool);
7050 extern tree
lookup_base (tree
, tree
, base_access
,
7051 base_kind
*, tsubst_flags_t
);
7052 extern tree
dcast_base_hint (tree
, tree
);
7053 extern int accessible_p (tree
, tree
, bool);
7054 extern int accessible_in_template_p (tree
, tree
);
7055 extern tree
lookup_field (tree
, tree
, int, bool);
7056 extern tree
lookup_fnfields (tree
, tree
, int, tsubst_flags_t
);
7057 extern tree
lookup_member (tree
, tree
, int, bool,
7059 access_failure_info
*afi
= NULL
);
7060 extern tree
lookup_member_fuzzy (tree
, tree
, bool);
7061 extern tree
locate_field_accessor (tree
, tree
, bool);
7062 extern int look_for_overrides (tree
, tree
);
7063 extern void get_pure_virtuals (tree
);
7064 extern void maybe_suppress_debug_info (tree
);
7065 extern void note_debug_info_needed (tree
);
7066 extern tree
current_scope (void);
7067 extern int at_function_scope_p (void);
7068 extern bool at_class_scope_p (void);
7069 extern bool at_namespace_scope_p (void);
7070 extern tree
context_for_name_lookup (tree
);
7071 extern tree
lookup_conversions (tree
);
7072 extern tree
binfo_from_vbase (tree
);
7073 extern tree
binfo_for_vbase (tree
, tree
);
7074 extern tree
look_for_overrides_here (tree
, tree
);
7075 #define dfs_skip_bases ((tree)1)
7076 extern tree
dfs_walk_all (tree
, tree (*) (tree
, void *),
7077 tree (*) (tree
, void *), void *);
7078 extern tree
dfs_walk_once (tree
, tree (*) (tree
, void *),
7079 tree (*) (tree
, void *), void *);
7080 extern tree
binfo_via_virtual (tree
, tree
);
7081 extern bool binfo_direct_p (tree
);
7082 extern tree
build_baselink (tree
, tree
, tree
, tree
);
7083 extern tree adjust_result_of_qualified_name_lookup
7085 extern tree
copied_binfo (tree
, tree
);
7086 extern tree
original_binfo (tree
, tree
);
7087 extern int shared_member_p (tree
);
7088 extern bool any_dependent_bases_p (tree
= current_nonlambda_class_type ());
7089 extern bool maybe_check_overriding_exception_spec (tree
, tree
);
7091 /* in semantics.c */
7092 extern void push_deferring_access_checks (deferring_kind
);
7093 extern void resume_deferring_access_checks (void);
7094 extern void stop_deferring_access_checks (void);
7095 extern void pop_deferring_access_checks (void);
7096 extern vec
<deferred_access_check
, va_gc
> *get_deferred_access_checks (void);
7097 extern void reopen_deferring_access_checks (vec
<deferred_access_check
, va_gc
> *);
7098 extern void pop_to_parent_deferring_access_checks (void);
7099 extern bool perform_access_checks (vec
<deferred_access_check
, va_gc
> *,
7101 extern bool perform_deferred_access_checks (tsubst_flags_t
);
7102 extern bool perform_or_defer_access_check (tree
, tree
, tree
,
7104 access_failure_info
*afi
= NULL
);
7106 /* RAII sentinel to ensures that deferred access checks are popped before
7107 a function returns. */
7109 class deferring_access_check_sentinel
7112 deferring_access_check_sentinel (enum deferring_kind kind
= dk_deferred
)
7114 push_deferring_access_checks (kind
);
7116 ~deferring_access_check_sentinel ()
7118 pop_deferring_access_checks ();
7122 extern int stmts_are_full_exprs_p (void);
7123 extern void init_cp_semantics (void);
7124 extern tree
do_poplevel (tree
);
7125 extern void break_maybe_infinite_loop (void);
7126 extern void add_decl_expr (tree
);
7127 extern tree
maybe_cleanup_point_expr_void (tree
);
7128 extern tree
finish_expr_stmt (tree
);
7129 extern tree
begin_if_stmt (void);
7130 extern tree
finish_if_stmt_cond (tree
, tree
);
7131 extern tree
finish_then_clause (tree
);
7132 extern void begin_else_clause (tree
);
7133 extern void finish_else_clause (tree
);
7134 extern void finish_if_stmt (tree
);
7135 extern tree
begin_while_stmt (void);
7136 extern void finish_while_stmt_cond (tree
, tree
, bool, unsigned short);
7137 extern void finish_while_stmt (tree
);
7138 extern tree
begin_do_stmt (void);
7139 extern void finish_do_body (tree
);
7140 extern void finish_do_stmt (tree
, tree
, bool, unsigned short);
7141 extern tree
finish_return_stmt (tree
);
7142 extern tree
begin_for_scope (tree
*);
7143 extern tree
begin_for_stmt (tree
, tree
);
7144 extern void finish_init_stmt (tree
);
7145 extern void finish_for_cond (tree
, tree
, bool, unsigned short);
7146 extern void finish_for_expr (tree
, tree
);
7147 extern void finish_for_stmt (tree
);
7148 extern tree
begin_range_for_stmt (tree
, tree
);
7149 extern void finish_range_for_decl (tree
, tree
, tree
);
7150 extern void finish_range_for_stmt (tree
);
7151 extern tree
finish_break_stmt (void);
7152 extern tree
finish_continue_stmt (void);
7153 extern tree
begin_switch_stmt (void);
7154 extern void finish_switch_cond (tree
, tree
);
7155 extern void finish_switch_stmt (tree
);
7156 extern tree
finish_goto_stmt (tree
);
7157 extern tree
begin_try_block (void);
7158 extern void finish_try_block (tree
);
7159 extern void finish_handler_sequence (tree
);
7160 extern tree
begin_function_try_block (tree
*);
7161 extern void finish_function_try_block (tree
);
7162 extern void finish_function_handler_sequence (tree
, tree
);
7163 extern void finish_cleanup_try_block (tree
);
7164 extern tree
begin_handler (void);
7165 extern void finish_handler_parms (tree
, tree
);
7166 extern void finish_handler (tree
);
7167 extern void finish_cleanup (tree
, tree
);
7168 extern bool is_this_parameter (tree
);
7177 extern tree
begin_compound_stmt (unsigned int);
7179 extern void finish_compound_stmt (tree
);
7180 extern tree
finish_asm_stmt (location_t
, int, tree
, tree
,
7181 tree
, tree
, tree
, bool);
7182 extern tree
finish_label_stmt (tree
);
7183 extern void finish_label_decl (tree
);
7184 extern cp_expr
finish_parenthesized_expr (cp_expr
);
7185 extern tree
force_paren_expr (tree
, bool = false);
7186 inline tree
force_paren_expr_uneval (tree t
)
7187 { return force_paren_expr (t
, true); }
7188 extern tree
maybe_undo_parenthesized_ref (tree
);
7189 extern tree
maybe_strip_ref_conversion (tree
);
7190 extern tree
finish_non_static_data_member (tree
, tree
, tree
);
7191 extern tree
begin_stmt_expr (void);
7192 extern tree
finish_stmt_expr_expr (tree
, tree
);
7193 extern tree
finish_stmt_expr (tree
, bool);
7194 extern tree
stmt_expr_value_expr (tree
);
7195 bool empty_expr_stmt_p (tree
);
7196 extern cp_expr
perform_koenig_lookup (cp_expr
, vec
<tree
, va_gc
> *,
7198 extern tree
finish_call_expr (tree
, vec
<tree
, va_gc
> **, bool,
7199 bool, tsubst_flags_t
);
7200 extern tree
lookup_and_finish_template_variable (tree
, tree
, tsubst_flags_t
= tf_warning_or_error
);
7201 extern tree
finish_template_variable (tree
, tsubst_flags_t
= tf_warning_or_error
);
7202 extern cp_expr
finish_increment_expr (cp_expr
, enum tree_code
);
7203 extern tree
finish_this_expr (void);
7204 extern tree
finish_pseudo_destructor_expr (tree
, tree
, tree
, location_t
);
7205 extern cp_expr
finish_unary_op_expr (location_t
, enum tree_code
, cp_expr
,
7207 /* Whether this call to finish_compound_literal represents a C++11 functional
7208 cast or a C99 compound literal. */
7209 enum fcl_t
{ fcl_functional
, fcl_c99
};
7210 extern tree
finish_compound_literal (tree
, tree
, tsubst_flags_t
, fcl_t
= fcl_functional
);
7211 extern tree
finish_fname (tree
);
7212 extern void finish_translation_unit (void);
7213 extern tree
finish_template_type_parm (tree
, tree
);
7214 extern tree
finish_template_template_parm (tree
, tree
);
7215 extern tree
begin_class_definition (tree
);
7216 extern void finish_template_decl (tree
);
7217 extern tree
finish_template_type (tree
, tree
, int);
7218 extern tree
finish_base_specifier (tree
, tree
, bool);
7219 extern void finish_member_declaration (tree
);
7220 extern bool outer_automatic_var_p (tree
);
7221 extern tree
process_outer_var_ref (tree
, tsubst_flags_t
, bool force_use
= false);
7222 extern cp_expr
finish_id_expression (tree
, tree
, tree
,
7225 bool, bool, bool, bool,
7228 extern tree
finish_typeof (tree
);
7229 extern tree
finish_underlying_type (tree
);
7230 extern tree
calculate_bases (tree
, tsubst_flags_t
);
7231 extern tree
finish_bases (tree
, bool);
7232 extern tree
calculate_direct_bases (tree
, tsubst_flags_t
);
7233 extern tree
finish_offsetof (tree
, tree
, location_t
);
7234 extern void finish_decl_cleanup (tree
, tree
);
7235 extern void finish_eh_cleanup (tree
);
7236 extern void emit_associated_thunks (tree
);
7237 extern void finish_mem_initializers (tree
);
7238 extern tree
check_template_template_default_arg (tree
);
7239 extern bool expand_or_defer_fn_1 (tree
);
7240 extern void expand_or_defer_fn (tree
);
7241 extern bool check_accessibility_of_qualified_id (tree
, tree
, tree
, tsubst_flags_t
);
7242 extern tree
finish_qualified_id_expr (tree
, tree
, bool, bool,
7243 bool, bool, tsubst_flags_t
);
7244 extern void simplify_aggr_init_expr (tree
*);
7245 extern void finalize_nrv (tree
*, tree
, tree
);
7246 extern tree
omp_reduction_id (enum tree_code
, tree
, tree
);
7247 extern tree
cp_remove_omp_priv_cleanup_stmt (tree
*, int *, void *);
7248 extern bool cp_check_omp_declare_reduction (tree
);
7249 extern void finish_omp_declare_simd_methods (tree
);
7250 extern tree
finish_omp_clauses (tree
, enum c_omp_region_type
);
7251 extern tree
push_omp_privatization_clauses (bool);
7252 extern void pop_omp_privatization_clauses (tree
);
7253 extern void save_omp_privatization_clauses (vec
<tree
> &);
7254 extern void restore_omp_privatization_clauses (vec
<tree
> &);
7255 extern void finish_omp_threadprivate (tree
);
7256 extern tree
begin_omp_structured_block (void);
7257 extern tree
finish_omp_structured_block (tree
);
7258 extern tree
finish_oacc_data (tree
, tree
);
7259 extern tree
finish_oacc_host_data (tree
, tree
);
7260 extern tree
finish_omp_construct (enum tree_code
, tree
, tree
);
7261 extern tree
begin_omp_parallel (void);
7262 extern tree
finish_omp_parallel (tree
, tree
);
7263 extern tree
begin_omp_task (void);
7264 extern tree
finish_omp_task (tree
, tree
);
7265 extern tree
finish_omp_for (location_t
, enum tree_code
,
7266 tree
, tree
, tree
, tree
, tree
,
7267 tree
, tree
, vec
<tree
> *, tree
);
7268 extern tree
finish_omp_for_block (tree
, tree
);
7269 extern void finish_omp_atomic (location_t
, enum tree_code
,
7270 enum tree_code
, tree
, tree
,
7271 tree
, tree
, tree
, tree
,
7272 enum omp_memory_order
);
7273 extern void finish_omp_barrier (void);
7274 extern void finish_omp_depobj (location_t
, tree
,
7275 enum omp_clause_depend_kind
,
7277 extern void finish_omp_flush (int);
7278 extern void finish_omp_taskwait (void);
7279 extern void finish_omp_taskyield (void);
7280 extern void finish_omp_cancel (tree
);
7281 extern void finish_omp_cancellation_point (tree
);
7282 extern tree
omp_privatize_field (tree
, bool);
7283 extern tree
begin_transaction_stmt (location_t
, tree
*, int);
7284 extern void finish_transaction_stmt (tree
, tree
, int, tree
);
7285 extern tree
build_transaction_expr (location_t
, tree
, int, tree
);
7286 extern bool cxx_omp_create_clause_info (tree
, tree
, bool, bool,
7288 extern tree
baselink_for_fns (tree
);
7289 extern void finish_static_assert (tree
, tree
, location_t
,
7291 extern tree
finish_decltype_type (tree
, bool, tsubst_flags_t
);
7292 extern tree
finish_trait_expr (location_t
, enum cp_trait_kind
, tree
, tree
);
7293 extern tree
build_lambda_expr (void);
7294 extern tree
build_lambda_object (tree
);
7295 extern tree
begin_lambda_type (tree
);
7296 extern tree
lambda_capture_field_type (tree
, bool, bool);
7297 extern tree
lambda_return_type (tree
);
7298 extern tree
lambda_proxy_type (tree
);
7299 extern tree
lambda_function (tree
);
7300 extern void apply_deduced_return_type (tree
, tree
);
7301 extern tree
add_capture (tree
, tree
, tree
, bool, bool);
7302 extern tree
add_default_capture (tree
, tree
, tree
);
7303 extern void insert_capture_proxy (tree
);
7304 extern void insert_pending_capture_proxies (void);
7305 extern bool is_capture_proxy (tree
);
7306 extern bool is_normal_capture_proxy (tree
);
7307 extern bool is_constant_capture_proxy (tree
);
7308 extern void register_capture_members (tree
);
7309 extern tree
lambda_expr_this_capture (tree
, int);
7310 extern void maybe_generic_this_capture (tree
, tree
);
7311 extern tree
maybe_resolve_dummy (tree
, bool);
7312 extern tree
current_nonlambda_function (void);
7313 extern tree
nonlambda_method_basetype (void);
7314 extern tree
current_nonlambda_scope (void);
7315 extern tree
current_lambda_expr (void);
7316 extern bool generic_lambda_fn_p (tree
);
7317 extern tree
do_dependent_capture (tree
, bool = false);
7318 extern bool lambda_fn_in_template_p (tree
);
7319 extern void maybe_add_lambda_conv_op (tree
);
7320 extern bool is_lambda_ignored_entity (tree
);
7321 extern bool lambda_static_thunk_p (tree
);
7322 extern tree
finish_builtin_launder (location_t
, tree
,
7324 extern tree
cp_build_vec_convert (tree
, location_t
, tree
,
7326 extern void start_lambda_scope (tree
);
7327 extern void record_lambda_scope (tree
);
7328 extern void record_null_lambda_scope (tree
);
7329 extern void finish_lambda_scope (void);
7330 extern tree
start_lambda_function (tree fn
, tree lambda_expr
);
7331 extern void finish_lambda_function (tree body
);
7334 extern int cp_tree_operand_length (const_tree
);
7335 extern int cp_tree_code_length (enum tree_code
);
7336 extern void cp_free_lang_data (tree t
);
7337 extern tree
force_target_expr (tree
, tree
, tsubst_flags_t
);
7338 extern tree
build_target_expr_with_type (tree
, tree
, tsubst_flags_t
);
7339 extern void lang_check_failed (const char *, int,
7340 const char *) ATTRIBUTE_NORETURN
7342 extern tree
stabilize_expr (tree
, tree
*);
7343 extern void stabilize_call (tree
, tree
*);
7344 extern bool stabilize_init (tree
, tree
*);
7345 extern tree
add_stmt_to_compound (tree
, tree
);
7346 extern void init_tree (void);
7347 extern bool pod_type_p (const_tree
);
7348 extern bool layout_pod_type_p (const_tree
);
7349 extern bool std_layout_type_p (const_tree
);
7350 extern bool trivial_type_p (const_tree
);
7351 extern bool trivially_copyable_p (const_tree
);
7352 extern bool type_has_unique_obj_representations (const_tree
);
7353 extern bool scalarish_type_p (const_tree
);
7354 extern bool structural_type_p (tree
, bool = false);
7355 extern bool type_has_nontrivial_default_init (const_tree
);
7356 extern bool type_has_nontrivial_copy_init (const_tree
);
7357 extern void maybe_warn_parm_abi (tree
, location_t
);
7358 extern bool class_tmpl_impl_spec_p (const_tree
);
7359 extern int zero_init_p (const_tree
);
7360 extern bool zero_init_expr_p (tree
);
7361 extern bool check_abi_tag_redeclaration (const_tree
, const_tree
,
7363 extern bool check_abi_tag_args (tree
, tree
);
7364 extern tree
strip_typedefs (tree
, bool * = NULL
,
7366 extern tree
strip_typedefs_expr (tree
, bool * = NULL
,
7368 extern tree
copy_binfo (tree
, tree
, tree
,
7370 extern int member_p (const_tree
);
7371 extern cp_lvalue_kind
real_lvalue_p (const_tree
);
7372 extern cp_lvalue_kind
lvalue_kind (const_tree
);
7373 extern bool glvalue_p (const_tree
);
7374 extern bool obvalue_p (const_tree
);
7375 extern bool xvalue_p (const_tree
);
7376 extern bool bitfield_p (const_tree
);
7377 extern tree
cp_stabilize_reference (tree
);
7378 extern bool builtin_valid_in_constant_expr_p (const_tree
);
7379 extern tree
build_min (enum tree_code
, tree
, ...);
7380 extern tree
build_min_nt_loc (location_t
, enum tree_code
,
7382 extern tree
build_min_non_dep (enum tree_code
, tree
, ...);
7383 extern tree
build_min_non_dep_op_overload (enum tree_code
, tree
, tree
, ...);
7384 extern tree
build_min_nt_call_vec (tree
, vec
<tree
, va_gc
> *);
7385 extern tree
build_min_non_dep_call_vec (tree
, tree
, vec
<tree
, va_gc
> *);
7386 extern vec
<tree
, va_gc
>* vec_copy_and_insert (vec
<tree
, va_gc
>*, tree
, unsigned);
7387 extern tree
build_cplus_new (tree
, tree
, tsubst_flags_t
);
7388 extern tree
build_local_temp (tree
);
7389 extern bool is_local_temp (tree
);
7390 extern tree
build_aggr_init_expr (tree
, tree
);
7391 extern tree
get_target_expr (tree
);
7392 extern tree
get_target_expr_sfinae (tree
, tsubst_flags_t
);
7393 extern tree
build_cplus_array_type (tree
, tree
);
7394 extern tree
build_array_of_n_type (tree
, int);
7395 extern bool array_of_runtime_bound_p (tree
);
7396 extern bool vla_type_p (tree
);
7397 extern tree
build_array_copy (tree
);
7398 extern tree
build_vec_init_expr (tree
, tree
, tsubst_flags_t
);
7399 extern void diagnose_non_constexpr_vec_init (tree
);
7400 extern tree
hash_tree_cons (tree
, tree
, tree
);
7401 extern tree
hash_tree_chain (tree
, tree
);
7402 extern tree
build_qualified_name (tree
, tree
, tree
, bool);
7403 extern tree
build_ref_qualified_type (tree
, cp_ref_qualifier
);
7404 inline tree
ovl_first (tree
) ATTRIBUTE_PURE
;
7405 extern tree
ovl_make (tree fn
,
7406 tree next
= NULL_TREE
);
7407 extern tree
ovl_insert (tree fn
, tree maybe_ovl
,
7408 bool using_p
= false);
7409 extern tree
ovl_skip_hidden (tree
) ATTRIBUTE_PURE
;
7410 extern void lookup_mark (tree lookup
, bool val
);
7411 extern tree
lookup_add (tree fns
, tree lookup
);
7412 extern tree
lookup_maybe_add (tree fns
, tree lookup
,
7414 extern int is_overloaded_fn (tree
) ATTRIBUTE_PURE
;
7415 extern bool really_overloaded_fn (tree
) ATTRIBUTE_PURE
;
7416 extern tree
dependent_name (tree
);
7417 extern tree
maybe_get_fns (tree
) ATTRIBUTE_PURE
;
7418 extern tree
get_fns (tree
) ATTRIBUTE_PURE
;
7419 extern tree
get_first_fn (tree
) ATTRIBUTE_PURE
;
7420 extern tree
ovl_scope (tree
);
7421 extern const char *cxx_printable_name (tree
, int);
7422 extern const char *cxx_printable_name_translate (tree
, int);
7423 extern tree
canonical_eh_spec (tree
);
7424 extern tree
build_cp_fntype_variant (tree
, cp_ref_qualifier
, tree
, bool);
7425 extern tree
build_exception_variant (tree
, tree
);
7426 extern tree
bind_template_template_parm (tree
, tree
);
7427 extern tree
array_type_nelts_total (tree
);
7428 extern tree
array_type_nelts_top (tree
);
7429 extern bool array_of_unknown_bound_p (const_tree
);
7430 extern tree
break_out_target_exprs (tree
, bool = false);
7431 extern tree
build_ctor_subob_ref (tree
, tree
, tree
);
7432 extern tree
replace_placeholders (tree
, tree
, bool * = NULL
);
7433 extern bool find_placeholders (tree
);
7434 extern tree
get_type_decl (tree
);
7435 extern tree
decl_namespace_context (tree
);
7436 extern bool decl_anon_ns_mem_p (const_tree
);
7437 extern tree
lvalue_type (tree
);
7438 extern tree
error_type (tree
);
7439 extern int varargs_function_p (const_tree
);
7440 extern bool cp_tree_equal (tree
, tree
);
7441 extern tree
no_linkage_check (tree
, bool);
7442 extern void debug_binfo (tree
);
7443 extern tree
build_dummy_object (tree
);
7444 extern tree
maybe_dummy_object (tree
, tree
*);
7445 extern bool is_dummy_object (const_tree
);
7446 extern bool is_byte_access_type (tree
);
7447 extern const struct attribute_spec cxx_attribute_table
[];
7448 extern tree
make_ptrmem_cst (tree
, tree
);
7449 extern tree
cp_build_type_attribute_variant (tree
, tree
);
7450 extern tree
cp_build_reference_type (tree
, bool);
7451 extern tree
move (tree
);
7452 extern tree
cp_build_qualified_type_real (tree
, int, tsubst_flags_t
);
7453 #define cp_build_qualified_type(TYPE, QUALS) \
7454 cp_build_qualified_type_real ((TYPE), (QUALS), tf_warning_or_error)
7455 extern bool cv_qualified_p (const_tree
);
7456 extern tree
cv_unqualified (tree
);
7457 extern special_function_kind
special_function_p (const_tree
);
7458 extern special_function_kind
special_memfn_p (const_tree
);
7459 extern int count_trees (tree
);
7460 extern int char_type_p (tree
);
7461 extern void verify_stmt_tree (tree
);
7462 extern linkage_kind
decl_linkage (tree
);
7463 extern duration_kind
decl_storage_duration (tree
);
7464 extern tree
cp_walk_subtrees (tree
*, int*, walk_tree_fn
,
7465 void*, hash_set
<tree
> *);
7466 #define cp_walk_tree(tp,func,data,pset) \
7467 walk_tree_1 (tp, func, data, pset, cp_walk_subtrees)
7468 #define cp_walk_tree_without_duplicates(tp,func,data) \
7469 walk_tree_without_duplicates_1 (tp, func, data, cp_walk_subtrees)
7470 extern tree
rvalue (tree
);
7471 extern tree
convert_bitfield_to_declared_type (tree
);
7472 extern tree
cp_save_expr (tree
);
7473 extern bool cast_valid_in_integral_constant_expression_p (tree
);
7474 extern bool cxx_type_hash_eq (const_tree
, const_tree
);
7475 extern tree
cxx_copy_lang_qualifiers (const_tree
, const_tree
);
7477 extern void cxx_print_statistics (void);
7478 extern bool maybe_warn_zero_as_null_pointer_constant (tree
, location_t
);
7481 extern void cxx_print_xnode (FILE *, tree
, int);
7482 extern void cxx_print_decl (FILE *, tree
, int);
7483 extern void cxx_print_type (FILE *, tree
, int);
7484 extern void cxx_print_identifier (FILE *, tree
, int);
7485 extern void cxx_print_error_function (diagnostic_context
*,
7487 struct diagnostic_info
*);
7490 /* Says how we should behave when comparing two arrays one of which
7491 has unknown bounds. */
7492 enum compare_bounds_t
{ bounds_none
, bounds_either
, bounds_first
};
7494 extern bool cxx_mark_addressable (tree
, bool = false);
7495 extern int string_conv_p (const_tree
, const_tree
, int);
7496 extern tree
cp_truthvalue_conversion (tree
, tsubst_flags_t
);
7497 extern tree
contextual_conv_bool (tree
, tsubst_flags_t
);
7498 extern tree
condition_conversion (tree
);
7499 extern tree
require_complete_type (tree
);
7500 extern tree
require_complete_type_sfinae (tree
, tsubst_flags_t
);
7501 extern tree
complete_type (tree
);
7502 extern tree
complete_type_or_else (tree
, tree
);
7503 extern tree
complete_type_or_maybe_complain (tree
, tree
, tsubst_flags_t
);
7504 inline bool type_unknown_p (const_tree
);
7505 enum { ce_derived
, ce_type
, ce_normal
, ce_exact
};
7506 extern bool comp_except_specs (const_tree
, const_tree
, int);
7507 extern bool comptypes (tree
, tree
, int);
7508 extern bool same_type_ignoring_top_level_qualifiers_p (tree
, tree
);
7509 extern bool similar_type_p (tree
, tree
);
7510 extern bool compparms (const_tree
, const_tree
);
7511 extern int comp_cv_qualification (const_tree
, const_tree
);
7512 extern int comp_cv_qualification (int, int);
7513 extern int comp_cv_qual_signature (tree
, tree
);
7514 extern tree
cxx_sizeof_or_alignof_expr (location_t
, tree
,
7515 enum tree_code
, bool);
7516 extern tree
cxx_sizeof_or_alignof_type (location_t
, tree
,
7517 enum tree_code
, bool, bool);
7518 extern tree
cxx_alignas_expr (tree
);
7519 extern tree
cxx_sizeof_nowarn (tree
);
7520 extern tree
is_bitfield_expr_with_lowered_type (const_tree
);
7521 extern tree
unlowered_expr_type (const_tree
);
7522 extern tree
decay_conversion (tree
,
7525 extern tree
build_class_member_access_expr (cp_expr
, tree
, tree
, bool,
7527 extern tree
finish_class_member_access_expr (cp_expr
, tree
, bool,
7529 extern tree
lookup_destructor (tree
, tree
, tree
, tsubst_flags_t
);
7530 extern tree
build_x_indirect_ref (location_t
, tree
,
7533 extern tree
cp_build_indirect_ref (location_t
, tree
,
7536 extern tree
cp_build_fold_indirect_ref (tree
);
7537 extern tree
build_array_ref (location_t
, tree
, tree
);
7538 extern tree
cp_build_array_ref (location_t
, tree
, tree
,
7540 extern tree
get_member_function_from_ptrfunc (tree
*, tree
, tsubst_flags_t
);
7541 extern tree
cp_build_function_call_nary (tree
, tsubst_flags_t
, ...)
7543 extern tree
cp_build_function_call_vec (tree
, vec
<tree
, va_gc
> **,
7546 extern tree
build_x_binary_op (const op_location_t
&,
7547 enum tree_code
, tree
,
7548 enum tree_code
, tree
,
7549 enum tree_code
, tree
*,
7551 inline tree
build_x_binary_op (const op_location_t
&loc
,
7552 enum tree_code code
, tree arg1
, tree arg2
,
7553 tsubst_flags_t complain
)
7555 return build_x_binary_op (loc
, code
, arg1
, TREE_CODE (arg1
), arg2
,
7556 TREE_CODE (arg2
), NULL
, complain
);
7558 extern tree
build_x_array_ref (location_t
, tree
, tree
,
7560 extern tree
build_x_unary_op (location_t
,
7561 enum tree_code
, cp_expr
,
7563 extern tree
cp_build_addressof (location_t
, tree
,
7565 extern tree
cp_build_addr_expr (tree
, tsubst_flags_t
);
7566 extern tree
cp_build_unary_op (enum tree_code
, tree
, bool,
7568 extern tree
genericize_compound_lvalue (tree
);
7569 extern tree
unary_complex_lvalue (enum tree_code
, tree
);
7570 extern tree
build_x_conditional_expr (location_t
, tree
, tree
, tree
,
7572 extern tree
build_x_compound_expr_from_list (tree
, expr_list_kind
,
7574 extern tree
build_x_compound_expr_from_vec (vec
<tree
, va_gc
> *,
7575 const char *, tsubst_flags_t
);
7576 extern tree
build_x_compound_expr (location_t
, tree
, tree
,
7578 extern tree
build_compound_expr (location_t
, tree
, tree
);
7579 extern tree
cp_build_compound_expr (tree
, tree
, tsubst_flags_t
);
7580 extern tree
build_static_cast (location_t
, tree
, tree
,
7582 extern tree
build_reinterpret_cast (location_t
, tree
, tree
,
7584 extern tree
build_const_cast (location_t
, tree
, tree
,
7586 extern tree
build_c_cast (location_t
, tree
, tree
);
7587 extern cp_expr
build_c_cast (location_t loc
, tree type
,
7589 extern tree
cp_build_c_cast (location_t
, tree
, tree
,
7591 extern cp_expr
build_x_modify_expr (location_t
, tree
,
7592 enum tree_code
, tree
,
7594 extern tree
cp_build_modify_expr (location_t
, tree
,
7595 enum tree_code
, tree
,
7597 extern tree
convert_for_initialization (tree
, tree
, tree
, int,
7598 impl_conv_rhs
, tree
, int,
7600 extern int comp_ptr_ttypes (tree
, tree
);
7601 extern bool comp_ptr_ttypes_const (tree
, tree
, compare_bounds_t
);
7602 extern bool error_type_p (const_tree
);
7603 extern bool ptr_reasonably_similar (const_tree
, const_tree
);
7604 extern tree
build_ptrmemfunc (tree
, tree
, int, bool,
7606 extern int cp_type_quals (const_tree
);
7607 extern int type_memfn_quals (const_tree
);
7608 extern cp_ref_qualifier
type_memfn_rqual (const_tree
);
7609 extern tree
apply_memfn_quals (tree
, cp_cv_quals
,
7610 cp_ref_qualifier
= REF_QUAL_NONE
);
7611 extern bool cp_has_mutable_p (const_tree
);
7612 extern bool at_least_as_qualified_p (const_tree
, const_tree
);
7613 extern void cp_apply_type_quals_to_decl (int, tree
);
7614 extern tree
build_ptrmemfunc1 (tree
, tree
, tree
);
7615 extern void expand_ptrmemfunc_cst (tree
, tree
*, tree
*);
7616 extern tree
type_after_usual_arithmetic_conversions (tree
, tree
);
7617 extern tree
common_pointer_type (tree
, tree
);
7618 extern tree
composite_pointer_type (const op_location_t
&,
7619 tree
, tree
, tree
, tree
,
7620 composite_pointer_operation
,
7622 extern tree
merge_types (tree
, tree
);
7623 extern tree
strip_array_domain (tree
);
7624 extern tree
check_return_expr (tree
, bool *);
7625 extern tree
spaceship_type (tree
, tsubst_flags_t
= tf_warning_or_error
);
7626 extern tree
genericize_spaceship (tree
, tree
, tree
);
7627 extern tree
cp_build_binary_op (const op_location_t
&,
7628 enum tree_code
, tree
, tree
,
7630 extern tree
build_x_vec_perm_expr (location_t
,
7633 #define cxx_sizeof(T) cxx_sizeof_or_alignof_type (input_location, T, SIZEOF_EXPR, false, true)
7634 extern tree
build_simple_component_ref (tree
, tree
);
7635 extern tree
build_ptrmemfunc_access_expr (tree
, tree
);
7636 extern tree
build_address (tree
);
7637 extern tree
build_nop (tree
, tree
);
7638 extern tree
non_reference (tree
);
7639 extern tree
lookup_anon_field (tree
, tree
);
7640 extern bool invalid_nonstatic_memfn_p (location_t
, tree
,
7642 extern tree
convert_member_func_to_ptr (tree
, tree
, tsubst_flags_t
);
7643 extern tree
convert_ptrmem (tree
, tree
, bool, bool,
7645 extern int lvalue_or_else (tree
, enum lvalue_use
,
7647 extern void check_template_keyword (tree
);
7648 extern bool check_raw_literal_operator (const_tree decl
);
7649 extern bool check_literal_operator_args (const_tree
, bool *, bool *);
7650 extern void maybe_warn_about_useless_cast (location_t
, tree
, tree
,
7652 extern tree
cp_perform_integral_promotions (tree
, tsubst_flags_t
);
7654 extern tree
finish_left_unary_fold_expr (tree
, int);
7655 extern tree
finish_right_unary_fold_expr (tree
, int);
7656 extern tree
finish_binary_fold_expr (tree
, tree
, int);
7657 extern tree
treat_lvalue_as_rvalue_p (tree
, bool);
7658 extern bool decl_in_std_namespace_p (tree
);
7661 extern void require_complete_eh_spec_types (tree
, tree
);
7662 extern void cxx_incomplete_type_diagnostic (location_t
, const_tree
,
7663 const_tree
, diagnostic_t
);
7666 cp_expr_loc_or_loc (const_tree t
, location_t or_loc
)
7668 location_t loc
= cp_expr_location (t
);
7669 if (loc
== UNKNOWN_LOCATION
)
7675 cp_expr_loc_or_input_loc (const_tree t
)
7677 return cp_expr_loc_or_loc (t
, input_location
);
7681 cxx_incomplete_type_diagnostic (const_tree value
, const_tree type
,
7682 diagnostic_t diag_kind
)
7684 cxx_incomplete_type_diagnostic (cp_expr_loc_or_input_loc (value
),
7685 value
, type
, diag_kind
);
7688 extern void cxx_incomplete_type_error (location_t
, const_tree
,
7691 cxx_incomplete_type_error (const_tree value
, const_tree type
)
7693 cxx_incomplete_type_diagnostic (value
, type
, DK_ERROR
);
7696 extern void cxx_incomplete_type_inform (const_tree
);
7697 extern tree
error_not_base_type (tree
, tree
);
7698 extern tree
binfo_or_else (tree
, tree
);
7699 extern void cxx_readonly_error (location_t
, tree
,
7701 extern void complete_type_check_abstract (tree
);
7702 extern int abstract_virtuals_error (tree
, tree
);
7703 extern int abstract_virtuals_error (abstract_class_use
, tree
);
7704 extern int abstract_virtuals_error_sfinae (tree
, tree
, tsubst_flags_t
);
7705 extern int abstract_virtuals_error_sfinae (abstract_class_use
, tree
, tsubst_flags_t
);
7707 extern tree
store_init_value (tree
, tree
, vec
<tree
, va_gc
>**, int);
7708 extern tree
split_nonconstant_init (tree
, tree
);
7709 extern bool check_narrowing (tree
, tree
, tsubst_flags_t
,
7711 extern bool ordinary_char_type_p (tree
);
7712 extern tree
digest_init (tree
, tree
, tsubst_flags_t
);
7713 extern tree
digest_init_flags (tree
, tree
, int, tsubst_flags_t
);
7714 extern tree
digest_nsdmi_init (tree
, tree
, tsubst_flags_t
);
7715 extern tree
build_scoped_ref (tree
, tree
, tree
*);
7716 extern tree
build_x_arrow (location_t
, tree
,
7718 extern tree
build_m_component_ref (tree
, tree
, tsubst_flags_t
);
7719 extern tree
build_functional_cast (location_t
, tree
, tree
,
7721 extern tree
add_exception_specifier (tree
, tree
, tsubst_flags_t
);
7722 extern tree
merge_exception_specifiers (tree
, tree
);
7725 extern void init_mangle (void);
7726 extern void mangle_decl (tree
);
7727 extern const char *mangle_type_string (tree
);
7728 extern tree
mangle_typeinfo_for_type (tree
);
7729 extern tree
mangle_typeinfo_string_for_type (tree
);
7730 extern tree
mangle_vtbl_for_type (tree
);
7731 extern tree
mangle_vtt_for_type (tree
);
7732 extern tree
mangle_ctor_vtbl_for_type (tree
, tree
);
7733 extern tree
mangle_thunk (tree
, int, tree
, tree
, tree
);
7734 extern tree
mangle_guard_variable (tree
);
7735 extern tree
mangle_tls_init_fn (tree
);
7736 extern tree
mangle_tls_wrapper_fn (tree
);
7737 extern bool decl_tls_wrapper_p (tree
);
7738 extern tree
mangle_ref_init_variable (tree
);
7739 extern tree
mangle_template_parm_object (tree
);
7740 extern char *get_mangled_vtable_map_var_name (tree
);
7741 extern bool mangle_return_type_p (tree
);
7742 extern tree
mangle_decomp (tree
, vec
<tree
> &);
7745 extern bool cp_dump_tree (void *, tree
);
7747 /* In cp/cp-objcp-common.c. */
7749 extern alias_set_type
cxx_get_alias_set (tree
);
7750 extern bool cxx_warn_unused_global_decl (const_tree
);
7751 extern size_t cp_tree_size (enum tree_code
);
7752 extern bool cp_var_mod_type_p (tree
, tree
);
7753 extern void cxx_initialize_diagnostics (diagnostic_context
*);
7754 extern int cxx_types_compatible_p (tree
, tree
);
7755 extern bool cxx_block_may_fallthru (const_tree
);
7757 /* in cp-gimplify.c */
7758 extern int cp_gimplify_expr (tree
*, gimple_seq
*,
7760 extern void cp_genericize (tree
);
7761 extern bool cxx_omp_const_qual_no_mutable (tree
);
7762 extern enum omp_clause_default_kind
cxx_omp_predetermined_sharing_1 (tree
);
7763 extern enum omp_clause_default_kind
cxx_omp_predetermined_sharing (tree
);
7764 extern enum omp_clause_defaultmap_kind
cxx_omp_predetermined_mapping (tree
);
7765 extern tree
cxx_omp_clause_default_ctor (tree
, tree
, tree
);
7766 extern tree
cxx_omp_clause_copy_ctor (tree
, tree
, tree
);
7767 extern tree
cxx_omp_clause_assign_op (tree
, tree
, tree
);
7768 extern tree
cxx_omp_clause_dtor (tree
, tree
);
7769 extern void cxx_omp_finish_clause (tree
, gimple_seq
*, bool);
7770 extern bool cxx_omp_privatize_by_reference (const_tree
);
7771 extern bool cxx_omp_disregard_value_expr (tree
, bool);
7772 extern void cp_fold_function (tree
);
7773 extern tree
cp_fold_maybe_rvalue (tree
, bool);
7774 extern tree
cp_fold_rvalue (tree
);
7775 extern tree
cp_fully_fold (tree
);
7776 extern tree
cp_fully_fold_init (tree
);
7777 extern tree
predeclare_vla (tree
);
7778 extern void clear_fold_cache (void);
7779 extern tree
lookup_hotness_attribute (tree
);
7780 extern tree
process_stmt_hotness_attribute (tree
, location_t
);
7781 extern bool simple_empty_class_p (tree
, tree
, tree_code
);
7782 extern tree
fold_builtin_source_location (location_t
);
7784 /* in name-lookup.c */
7785 extern tree
strip_using_decl (tree
);
7787 /* Tell the binding oracle what kind of binding we are looking for. */
7789 enum cp_oracle_request
7791 CP_ORACLE_IDENTIFIER
7794 /* If this is non-NULL, then it is a "binding oracle" which can lazily
7795 create bindings when needed by the C compiler. The oracle is told
7796 the name and type of the binding to create. It can call pushdecl
7797 or the like to ensure the binding is visible; or do nothing,
7798 leaving the binding untouched. c-decl.c takes note of when the
7799 oracle has been called and will not call it again if it fails to
7800 create a given binding. */
7802 typedef void cp_binding_oracle_function (enum cp_oracle_request
, tree identifier
);
7804 extern cp_binding_oracle_function
*cp_binding_oracle
;
7806 /* Set during diagnostics to record the failed constraint. This is a
7807 TREE_LIST whose VALUE is the constraint and whose PURPOSE are the
7808 instantiation arguments Defined in pt.c. */
7810 extern tree current_failed_constraint
;
7812 /* An RAII class to manage the failed constraint. */
7814 struct diagnosing_failed_constraint
7816 diagnosing_failed_constraint (tree
, tree
, bool);
7817 ~diagnosing_failed_constraint ();
7818 static bool replay_errors_p ();
7820 bool diagnosing_error
;
7823 /* in constraint.cc */
7825 extern cp_expr
finish_constraint_or_expr (location_t
, cp_expr
, cp_expr
);
7826 extern cp_expr
finish_constraint_and_expr (location_t
, cp_expr
, cp_expr
);
7827 extern cp_expr
finish_constraint_primary_expr (cp_expr
);
7828 extern tree
finish_concept_definition (cp_expr
, tree
);
7829 extern tree
combine_constraint_expressions (tree
, tree
);
7830 extern tree
append_constraint (tree
, tree
);
7831 extern tree
get_constraints (const_tree
);
7832 extern void set_constraints (tree
, tree
);
7833 extern void remove_constraints (tree
);
7834 extern tree
current_template_constraints (void);
7835 extern tree
associate_classtype_constraints (tree
);
7836 extern tree
build_constraints (tree
, tree
);
7837 extern tree
maybe_substitute_reqs_for (tree
, const_tree
);
7838 extern tree
get_template_head_requirements (tree
);
7839 extern tree
get_trailing_function_requirements (tree
);
7840 extern tree
get_shorthand_constraints (tree
);
7842 extern tree
build_concept_id (tree
);
7843 extern tree
build_type_constraint (tree
, tree
, tsubst_flags_t
);
7844 extern tree
build_concept_check (tree
, tree
, tsubst_flags_t
);
7845 extern tree
build_concept_check (tree
, tree
, tree
, tsubst_flags_t
);
7847 extern tree_pair
finish_type_constraints (tree
, tree
, tsubst_flags_t
);
7848 extern tree
build_constrained_parameter (tree
, tree
, tree
= NULL_TREE
);
7849 extern void placeholder_extract_concept_and_args (tree
, tree
&, tree
&);
7850 extern bool equivalent_placeholder_constraints (tree
, tree
);
7851 extern hashval_t
hash_placeholder_constraint (tree
);
7852 extern bool deduce_constrained_parameter (tree
, tree
&, tree
&);
7853 extern tree
resolve_constraint_check (tree
);
7854 extern tree
check_function_concept (tree
);
7855 extern tree
finish_template_introduction (tree
, tree
, location_t loc
);
7856 extern bool valid_requirements_p (tree
);
7857 extern tree
finish_concept_name (tree
);
7858 extern tree
finish_shorthand_constraint (tree
, tree
);
7859 extern tree
finish_requires_expr (location_t
, tree
, tree
);
7860 extern tree
finish_simple_requirement (location_t
, tree
);
7861 extern tree
finish_type_requirement (location_t
, tree
);
7862 extern tree
finish_compound_requirement (location_t
, tree
, tree
, bool);
7863 extern tree
finish_nested_requirement (location_t
, tree
);
7864 extern void check_constrained_friend (tree
, tree
);
7865 extern tree
tsubst_requires_expr (tree
, tree
, tsubst_flags_t
, tree
);
7866 extern tree
tsubst_constraint (tree
, tree
, tsubst_flags_t
, tree
);
7867 extern tree
tsubst_constraint_info (tree
, tree
, tsubst_flags_t
, tree
);
7868 extern tree
tsubst_parameter_mapping (tree
, tree
, tsubst_flags_t
, tree
);
7869 extern tree
get_mapped_args (tree
);
7871 struct processing_constraint_expression_sentinel
7873 processing_constraint_expression_sentinel ();
7874 ~processing_constraint_expression_sentinel ();
7877 extern bool processing_constraint_expression_p ();
7879 extern tree
unpack_concept_check (tree
);
7880 extern tree
evaluate_concept_check (tree
, tsubst_flags_t
);
7881 extern tree
satisfy_constraint_expression (tree
);
7882 extern bool constraints_satisfied_p (tree
);
7883 extern bool constraints_satisfied_p (tree
, tree
);
7884 extern void clear_satisfaction_cache ();
7885 extern bool* lookup_subsumption_result (tree
, tree
);
7886 extern bool save_subsumption_result (tree
, tree
, bool);
7887 extern tree
find_template_parameters (tree
, tree
);
7888 extern bool equivalent_constraints (tree
, tree
);
7889 extern bool equivalently_constrained (tree
, tree
);
7890 extern bool subsumes_constraints (tree
, tree
);
7891 extern bool strictly_subsumes (tree
, tree
, tree
);
7892 extern bool weakly_subsumes (tree
, tree
, tree
);
7893 extern int more_constrained (tree
, tree
);
7894 extern bool at_least_as_constrained (tree
, tree
);
7895 extern bool constraints_equivalent_p (tree
, tree
);
7896 extern bool atomic_constraints_identical_p (tree
, tree
);
7897 extern hashval_t
iterative_hash_constraint (tree
, hashval_t
);
7898 extern hashval_t
hash_atomic_constraint (tree
);
7899 extern void diagnose_constraints (location_t
, tree
, tree
);
7902 extern bool subsumes (tree
, tree
);
7905 extern void cp_finish_injected_record_type (tree
);
7907 /* in vtable-class-hierarchy.c */
7908 extern void vtv_compute_class_hierarchy_transitive_closure (void);
7909 extern void vtv_generate_init_routine (void);
7910 extern void vtv_save_class_info (tree
);
7911 extern void vtv_recover_class_info (void);
7912 extern void vtv_build_vtable_verify_fndecl (void);
7914 /* In constexpr.c */
7915 extern void fini_constexpr (void);
7916 extern bool literal_type_p (tree
);
7917 extern tree
register_constexpr_fundef (tree
, tree
);
7918 extern bool is_valid_constexpr_fn (tree
, bool);
7919 extern bool check_constexpr_ctor_body (tree
, tree
, bool);
7920 extern tree
constexpr_fn_retval (tree
);
7921 extern tree
ensure_literal_type_for_constexpr_object (tree
);
7922 extern bool potential_constant_expression (tree
);
7923 extern bool is_constant_expression (tree
);
7924 extern bool is_rvalue_constant_expression (tree
);
7925 extern bool is_nondependent_constant_expression (tree
);
7926 extern bool is_nondependent_static_init_expression (tree
);
7927 extern bool is_static_init_expression (tree
);
7928 extern bool potential_rvalue_constant_expression (tree
);
7929 extern bool require_potential_constant_expression (tree
);
7930 extern bool require_constant_expression (tree
);
7931 extern bool require_rvalue_constant_expression (tree
);
7932 extern bool require_potential_rvalue_constant_expression (tree
);
7933 extern tree
cxx_constant_value (tree
, tree
= NULL_TREE
);
7934 extern void cxx_constant_dtor (tree
, tree
);
7935 extern tree
cxx_constant_init (tree
, tree
= NULL_TREE
);
7936 extern tree
maybe_constant_value (tree
, tree
= NULL_TREE
, bool = false);
7937 extern tree
maybe_constant_init (tree
, tree
= NULL_TREE
, bool = false);
7938 extern tree
fold_non_dependent_expr (tree
,
7939 tsubst_flags_t
= tf_warning_or_error
,
7940 bool = false, tree
= NULL_TREE
);
7941 extern tree
maybe_fold_non_dependent_expr (tree
,
7942 tsubst_flags_t
= tf_warning_or_error
);
7943 extern tree
fold_non_dependent_init (tree
,
7944 tsubst_flags_t
= tf_warning_or_error
,
7946 extern tree
fold_simple (tree
);
7947 extern bool reduced_constant_expression_p (tree
);
7948 extern bool is_instantiation_of_constexpr (tree
);
7949 extern bool var_in_constexpr_fn (tree
);
7950 extern bool var_in_maybe_constexpr_fn (tree
);
7951 extern void explain_invalid_constexpr_fn (tree
);
7952 extern vec
<tree
> cx_error_context (void);
7953 extern tree
fold_sizeof_expr (tree
);
7954 extern void clear_cv_and_fold_caches (bool = true);
7955 extern tree
unshare_constructor (tree CXX_MEM_STAT_INFO
);
7957 /* An RAII sentinel used to restrict constexpr evaluation so that it
7958 doesn't do anything that causes extra DECL_UID generation. */
7960 struct uid_sensitive_constexpr_evaluation_sentinel
7962 temp_override
<bool> ovr
;
7963 uid_sensitive_constexpr_evaluation_sentinel ();
7966 /* Used to determine whether uid_sensitive_constexpr_evaluation_p was
7967 called and returned true, indicating that we've restricted constexpr
7968 evaluation in order to avoid UID generation. We use this to control
7969 updates to the fold_cache and cv_cache. */
7971 struct uid_sensitive_constexpr_evaluation_checker
7973 const unsigned saved_counter
;
7974 uid_sensitive_constexpr_evaluation_checker ();
7975 bool evaluation_restricted_p () const;
7979 extern void cp_ubsan_maybe_instrument_member_call (tree
);
7980 extern void cp_ubsan_instrument_member_accesses (tree
*);
7981 extern tree
cp_ubsan_maybe_instrument_downcast (location_t
, tree
, tree
, tree
);
7982 extern tree
cp_ubsan_maybe_instrument_cast_to_vbase (location_t
, tree
, tree
);
7983 extern void cp_ubsan_maybe_initialize_vtbl_ptrs (tree
);
7985 /* In coroutines.cc */
7986 extern tree
finish_co_return_stmt (location_t
, tree
);
7987 extern tree
finish_co_await_expr (location_t
, tree
);
7988 extern tree
finish_co_yield_expr (location_t
, tree
);
7989 extern tree
coro_validate_builtin_call (tree
,
7990 tsubst_flags_t
= tf_warning_or_error
);
7991 extern bool morph_fn_to_coro (tree
, tree
*, tree
*);
7993 /* Inline bodies. */
7996 ovl_first (tree node
)
7998 while (TREE_CODE (node
) == OVERLOAD
)
7999 node
= OVL_FUNCTION (node
);
8004 type_unknown_p (const_tree expr
)
8006 return TREE_TYPE (expr
) == unknown_type_node
;
8010 named_decl_hash::hash (const value_type decl
)
8012 tree name
= OVL_NAME (decl
);
8013 return name
? IDENTIFIER_HASH_VALUE (name
) : 0;
8017 named_decl_hash::equal (const value_type existing
, compare_type candidate
)
8019 tree name
= OVL_NAME (existing
);
8020 return candidate
== name
;
8024 null_node_p (const_tree expr
)
8026 STRIP_ANY_LOCATION_WRAPPER (expr
);
8027 return expr
== null_node
;
8030 /* True iff T is a variable template declaration. */
8032 variable_template_p (tree t
)
8034 if (TREE_CODE (t
) != TEMPLATE_DECL
)
8036 if (!PRIMARY_TEMPLATE_P (t
))
8038 if (tree r
= DECL_TEMPLATE_RESULT (t
))
8043 /* True iff T is a standard concept definition. This will return
8044 true for both the template and underlying declaration. */
8047 standard_concept_p (tree t
)
8049 if (TREE_CODE (t
) == TEMPLATE_DECL
)
8050 t
= DECL_TEMPLATE_RESULT (t
);
8051 return TREE_CODE (t
) == CONCEPT_DECL
;
8054 /* True iff T is a variable concept definition. This will return
8055 true for both the template and the underlying declaration. */
8058 variable_concept_p (tree t
)
8060 if (TREE_CODE (t
) == TEMPLATE_DECL
)
8061 t
= DECL_TEMPLATE_RESULT (t
);
8062 return VAR_P (t
) && DECL_DECLARED_CONCEPT_P (t
);
8065 /* True iff T is a function concept definition or an overload set
8066 containing multiple function concepts. This will return true for
8067 both the template and the underlying declaration. */
8070 function_concept_p (tree t
)
8072 if (TREE_CODE (t
) == OVERLOAD
)
8074 if (TREE_CODE (t
) == TEMPLATE_DECL
)
8075 t
= DECL_TEMPLATE_RESULT (t
);
8076 return TREE_CODE (t
) == FUNCTION_DECL
&& DECL_DECLARED_CONCEPT_P (t
);
8079 /* True iff T is a standard, variable, or function concept. */
8082 concept_definition_p (tree t
)
8084 if (t
== error_mark_node
)
8087 /* Adjust for function concept overloads. */
8088 if (TREE_CODE (t
) == OVERLOAD
)
8091 /* See through templates. */
8092 if (TREE_CODE (t
) == TEMPLATE_DECL
)
8093 t
= DECL_TEMPLATE_RESULT (t
);
8095 /* The obvious and easy case. */
8096 if (TREE_CODE (t
) == CONCEPT_DECL
)
8099 /* Definitely not a concept. */
8100 if (!VAR_OR_FUNCTION_DECL_P (t
))
8102 if (!DECL_LANG_SPECIFIC (t
))
8105 return DECL_DECLARED_CONCEPT_P (t
);
8108 /* Same as above, but for const trees. */
8111 concept_definition_p (const_tree t
)
8113 return concept_definition_p (const_cast<tree
> (t
));
8116 /* True if t is an expression that checks a concept. */
8119 concept_check_p (const_tree t
)
8121 if (TREE_CODE (t
) == CALL_EXPR
)
8122 t
= CALL_EXPR_FN (t
);
8123 if (t
&& TREE_CODE (t
) == TEMPLATE_ID_EXPR
)
8124 return concept_definition_p (TREE_OPERAND (t
, 0));
8128 /* Helpers for IMPLICIT_RVALUE_P to look through automatic dereference. */
8131 implicit_rvalue_p (const_tree t
)
8133 if (REFERENCE_REF_P (t
))
8134 t
= TREE_OPERAND (t
, 0);
8135 return ((TREE_CODE (t
) == NON_LVALUE_EXPR
8136 || TREE_CODE (t
) == STATIC_CAST_EXPR
)
8137 && IMPLICIT_RVALUE_P (t
));
8140 set_implicit_rvalue_p (tree ot
)
8143 if (REFERENCE_REF_P (t
))
8144 t
= TREE_OPERAND (t
, 0);
8145 IMPLICIT_RVALUE_P (t
) = 1;
8149 /* True if t is a "constrained auto" type-specifier. */
8152 is_constrained_auto (const_tree t
)
8154 return is_auto (t
) && PLACEHOLDER_TYPE_CONSTRAINTS (t
);
8157 /* RAII class to push/pop class scope T; if T is not a class, do nothing. */
8159 struct push_nested_class_guard
8162 push_nested_class_guard (tree t
)
8163 : push (t
&& CLASS_TYPE_P (t
))
8166 push_nested_class (t
);
8168 ~push_nested_class_guard ()
8171 pop_nested_class ();
8176 namespace selftest
{
8177 extern void run_cp_tests (void);
8179 /* Declarations for specific families of tests within cp,
8180 by source file, in alphabetical order. */
8181 extern void cp_pt_c_tests ();
8182 extern void cp_tree_c_tests (void);
8183 } // namespace selftest
8184 #endif /* #if CHECKING_P */
8188 #endif /* ! GCC_CP_TREE_H */