1 /* Definitions for -*- C++ -*- parsing and type checking. 2 Copyright (C) 1987-2022 Free Software Foundation, Inc. 3 Contributed by Michael Tiemann (tiemann (at) cygnus.com) 4 5 This file is part of GCC. 6 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) 10 any later version. 11 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. 16 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/>. */ 20 21 #ifndef GCC_CP_TREE_H 22 #define GCC_CP_TREE_H 23 24 #include "tm.h" 25 #include "hard-reg-set.h" 26 #include "function.h" 27 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 31 in c-common.h. */ 32 #undef GCC_DIAG_STYLE 33 #define GCC_DIAG_STYLE __gcc_cxxdiag__ 34 #if defined(GCC_DIAGNOSTIC_CORE_H) || defined (GCC_C_COMMON_H) 35 #error \ 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. 39 #endif 40 #include "c-family/c-common.h" 41 #include "diagnostic.h" 42 43 /* A tree node, together with a location, so that we can track locations 44 (and ranges) during parsing. 45 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. */ 49 50 extern location_t cp_expr_location (const_tree); 51 52 class cp_expr 53 { 54 public: 55 cp_expr () : 56 m_value (NULL), m_loc (UNKNOWN_LOCATION) {} 57 58 cp_expr (tree value) : 59 m_value (value), m_loc (cp_expr_location (m_value)) {} 60 61 cp_expr (tree value, location_t loc): 62 m_value (value), m_loc (loc) 63 { 64 protected_set_expr_location (value, loc); 65 } 66 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; } 73 74 tree get_value () const { return m_value; } 75 location_t get_location () const { return m_loc; } 76 location_t get_start () const 77 { 78 source_range src_range = get_range_from_loc (line_table, m_loc); 79 return src_range.m_start; 80 } 81 location_t get_finish () const 82 { 83 source_range src_range = get_range_from_loc (line_table, m_loc); 84 return src_range.m_finish; 85 } 86 87 void set_location (location_t loc) 88 { 89 protected_set_expr_location (m_value, loc); 90 m_loc = loc; 91 } 92 93 void set_range (location_t start, location_t finish) 94 { 95 set_location (make_location (m_loc, start, finish)); 96 } 97 98 cp_expr& maybe_add_location_wrapper () 99 { 100 m_value = maybe_wrap_with_location (m_value, m_loc); 101 return *this; 102 } 103 104 private: 105 tree m_value; 106 location_t m_loc; 107 }; 108 109 inline bool 110 operator == (const cp_expr &lhs, tree rhs) 111 { 112 return lhs.get_value () == rhs; 113 } 114 115 116 enum cp_tree_index 118 { 119 CPTI_WCHAR_DECL, 120 CPTI_VTABLE_ENTRY_TYPE, 121 CPTI_DELTA_TYPE, 122 CPTI_VTABLE_INDEX_TYPE, 123 CPTI_CLEANUP_TYPE, 124 CPTI_VTT_PARM_TYPE, 125 126 CPTI_CLASS_TYPE, 127 CPTI_UNKNOWN_TYPE, 128 CPTI_INIT_LIST_TYPE, 129 CPTI_EXPLICIT_VOID_LIST, 130 CPTI_VTBL_TYPE, 131 CPTI_VTBL_PTR_TYPE, 132 CPTI_GLOBAL, 133 CPTI_ABORT_FNDECL, 134 CPTI_AGGR_TAG, 135 CPTI_CONV_OP_MARKER, 136 137 CPTI_CTOR_IDENTIFIER, 138 CPTI_COMPLETE_CTOR_IDENTIFIER, 139 CPTI_BASE_CTOR_IDENTIFIER, 140 CPTI_DTOR_IDENTIFIER, 141 CPTI_COMPLETE_DTOR_IDENTIFIER, 142 CPTI_BASE_DTOR_IDENTIFIER, 143 CPTI_DELETING_DTOR_IDENTIFIER, 144 CPTI_CONV_OP_IDENTIFIER, 145 CPTI_DELTA_IDENTIFIER, 146 CPTI_IN_CHARGE_IDENTIFIER, 147 CPTI_VTT_PARM_IDENTIFIER, 148 CPTI_AS_BASE_IDENTIFIER, 149 CPTI_THIS_IDENTIFIER, 150 CPTI_PFN_IDENTIFIER, 151 CPTI_VPTR_IDENTIFIER, 152 CPTI_GLOBAL_IDENTIFIER, 153 CPTI_ANON_IDENTIFIER, 154 CPTI_AUTO_IDENTIFIER, 155 CPTI_DECLTYPE_AUTO_IDENTIFIER, 156 CPTI_INIT_LIST_IDENTIFIER, 157 CPTI_FOR_RANGE__IDENTIFIER, 158 CPTI_FOR_BEGIN__IDENTIFIER, 159 CPTI_FOR_END__IDENTIFIER, 160 CPTI_FOR_RANGE_IDENTIFIER, 161 CPTI_FOR_BEGIN_IDENTIFIER, 162 CPTI_FOR_END_IDENTIFIER, 163 CPTI_ABI_TAG_IDENTIFIER, 164 CPTI_ALIGNED_IDENTIFIER, 165 CPTI_BEGIN_IDENTIFIER, 166 CPTI_END_IDENTIFIER, 167 CPTI_GET_IDENTIFIER, 168 CPTI_GNU_IDENTIFIER, 169 CPTI_TUPLE_ELEMENT_IDENTIFIER, 170 CPTI_TUPLE_SIZE_IDENTIFIER, 171 CPTI_TYPE_IDENTIFIER, 172 CPTI_VALUE_IDENTIFIER, 173 CPTI_FUN_IDENTIFIER, 174 CPTI_CLOSURE_IDENTIFIER, 175 CPTI_HEAP_UNINIT_IDENTIFIER, 176 CPTI_HEAP_IDENTIFIER, 177 CPTI_HEAP_DELETED_IDENTIFIER, 178 CPTI_HEAP_VEC_UNINIT_IDENTIFIER, 179 CPTI_HEAP_VEC_IDENTIFIER, 180 CPTI_OMP_IDENTIFIER, 181 182 CPTI_LANG_NAME_C, 183 CPTI_LANG_NAME_CPLUSPLUS, 184 185 CPTI_EMPTY_EXCEPT_SPEC, 186 CPTI_NOEXCEPT_TRUE_SPEC, 187 CPTI_NOEXCEPT_FALSE_SPEC, 188 CPTI_NOEXCEPT_DEFERRED_SPEC, 189 190 CPTI_NULLPTR, 191 CPTI_NULLPTR_TYPE, 192 193 CPTI_ANY_TARG, 194 195 CPTI_MODULE_HWM, 196 /* Nodes after here change during compilation, or should not be in 197 the module's global tree table. Such nodes must be locatable 198 via name lookup or type-construction, as those are the only 199 cross-TU matching capabilities remaining. */ 200 201 /* We must find these via the global namespace. */ 202 CPTI_STD, 203 CPTI_ABI, 204 205 /* These are created at init time, but the library/headers provide 206 definitions. */ 207 CPTI_ALIGN_TYPE, 208 CPTI_TERMINATE_FN, 209 CPTI_CALL_UNEXPECTED_FN, 210 211 /* These are lazily inited. */ 212 CPTI_CONST_TYPE_INFO_TYPE, 213 CPTI_GET_EXCEPTION_PTR_FN, 214 CPTI_BEGIN_CATCH_FN, 215 CPTI_END_CATCH_FN, 216 CPTI_ALLOCATE_EXCEPTION_FN, 217 CPTI_FREE_EXCEPTION_FN, 218 CPTI_THROW_FN, 219 CPTI_RETHROW_FN, 220 CPTI_ATEXIT_FN_PTR_TYPE, 221 CPTI_ATEXIT, 222 CPTI_DSO_HANDLE, 223 CPTI_DCAST, 224 225 CPTI_SOURCE_LOCATION_IMPL, 226 227 CPTI_FALLBACK_DFLOAT32_TYPE, 228 CPTI_FALLBACK_DFLOAT64_TYPE, 229 CPTI_FALLBACK_DFLOAT128_TYPE, 230 231 CPTI_MAX 232 }; 233 234 extern GTY(()) tree cp_global_trees[CPTI_MAX]; 235 236 #define wchar_decl_node cp_global_trees[CPTI_WCHAR_DECL] 237 #define vtable_entry_type cp_global_trees[CPTI_VTABLE_ENTRY_TYPE] 238 /* The type used to represent an offset by which to adjust the `this' 239 pointer in pointer-to-member types. */ 240 #define delta_type_node cp_global_trees[CPTI_DELTA_TYPE] 241 /* The type used to represent an index into the vtable. */ 242 #define vtable_index_type cp_global_trees[CPTI_VTABLE_INDEX_TYPE] 243 244 #define class_type_node cp_global_trees[CPTI_CLASS_TYPE] 245 #define unknown_type_node cp_global_trees[CPTI_UNKNOWN_TYPE] 246 #define init_list_type_node cp_global_trees[CPTI_INIT_LIST_TYPE] 247 #define explicit_void_list_node cp_global_trees[CPTI_EXPLICIT_VOID_LIST] 248 #define vtbl_type_node cp_global_trees[CPTI_VTBL_TYPE] 249 #define vtbl_ptr_type_node cp_global_trees[CPTI_VTBL_PTR_TYPE] 250 #define std_node cp_global_trees[CPTI_STD] 251 #define abi_node cp_global_trees[CPTI_ABI] 252 #define global_namespace cp_global_trees[CPTI_GLOBAL] 253 #define const_type_info_type_node cp_global_trees[CPTI_CONST_TYPE_INFO_TYPE] 254 #define conv_op_marker cp_global_trees[CPTI_CONV_OP_MARKER] 255 #define abort_fndecl cp_global_trees[CPTI_ABORT_FNDECL] 256 #define current_aggr cp_global_trees[CPTI_AGGR_TAG] 257 #define nullptr_node cp_global_trees[CPTI_NULLPTR] 258 #define nullptr_type_node cp_global_trees[CPTI_NULLPTR_TYPE] 259 /* std::align_val_t */ 260 #define align_type_node cp_global_trees[CPTI_ALIGN_TYPE] 261 262 /* We cache these tree nodes so as to call get_identifier less frequently. 263 For identifiers for functions, including special member functions such 264 as ctors and assignment operators, the nodes can be used (among other 265 things) to iterate over their overloads defined by/for a type. For 266 example: 267 268 tree ovlid = assign_op_identifier; 269 tree overloads = get_class_binding (type, ovlid); 270 for (ovl_iterator it (overloads); it; ++it) { ... } 271 272 iterates over the set of implicitly and explicitly defined overloads 273 of the assignment operator for type (including the copy and move 274 assignment operators, whether deleted or not). */ 275 276 /* The name of a constructor that takes an in-charge parameter to 277 decide whether or not to construct virtual base classes. */ 278 #define ctor_identifier cp_global_trees[CPTI_CTOR_IDENTIFIER] 279 /* The name of a constructor that constructs virtual base classes. */ 280 #define complete_ctor_identifier cp_global_trees[CPTI_COMPLETE_CTOR_IDENTIFIER] 281 /* The name of a constructor that does not construct virtual base classes. */ 282 #define base_ctor_identifier cp_global_trees[CPTI_BASE_CTOR_IDENTIFIER] 283 /* The name of a destructor that takes an in-charge parameter to 284 decide whether or not to destroy virtual base classes and whether 285 or not to delete the object. */ 286 #define dtor_identifier cp_global_trees[CPTI_DTOR_IDENTIFIER] 287 /* The name of a destructor that destroys virtual base classes. */ 288 #define complete_dtor_identifier cp_global_trees[CPTI_COMPLETE_DTOR_IDENTIFIER] 289 /* The name of a destructor that does not destroy virtual base 290 classes. */ 291 #define base_dtor_identifier cp_global_trees[CPTI_BASE_DTOR_IDENTIFIER] 292 /* The name of a destructor that destroys virtual base classes, and 293 then deletes the entire object. */ 294 #define deleting_dtor_identifier cp_global_trees[CPTI_DELETING_DTOR_IDENTIFIER] 295 296 /* The name used for conversion operators -- but note that actual 297 conversion functions use special identifiers outside the identifier 298 table. */ 299 #define conv_op_identifier cp_global_trees[CPTI_CONV_OP_IDENTIFIER] 300 301 #define delta_identifier cp_global_trees[CPTI_DELTA_IDENTIFIER] 302 #define in_charge_identifier cp_global_trees[CPTI_IN_CHARGE_IDENTIFIER] 303 /* The name of the parameter that contains a pointer to the VTT to use 304 for this subobject constructor or destructor. */ 305 #define vtt_parm_identifier cp_global_trees[CPTI_VTT_PARM_IDENTIFIER] 306 #define as_base_identifier cp_global_trees[CPTI_AS_BASE_IDENTIFIER] 307 #define this_identifier cp_global_trees[CPTI_THIS_IDENTIFIER] 308 #define pfn_identifier cp_global_trees[CPTI_PFN_IDENTIFIER] 309 #define vptr_identifier cp_global_trees[CPTI_VPTR_IDENTIFIER] 310 /* The name of the ::, std & anon namespaces. */ 311 #define global_identifier cp_global_trees[CPTI_GLOBAL_IDENTIFIER] 312 #define anon_identifier cp_global_trees[CPTI_ANON_IDENTIFIER] 313 /* auto and declspec(auto) identifiers. */ 314 #define auto_identifier cp_global_trees[CPTI_AUTO_IDENTIFIER] 315 #define decltype_auto_identifier cp_global_trees[CPTI_DECLTYPE_AUTO_IDENTIFIER] 316 #define init_list_identifier cp_global_trees[CPTI_INIT_LIST_IDENTIFIER] 317 #define for_range__identifier cp_global_trees[CPTI_FOR_RANGE__IDENTIFIER] 318 #define for_begin__identifier cp_global_trees[CPTI_FOR_BEGIN__IDENTIFIER] 319 #define for_end__identifier cp_global_trees[CPTI_FOR_END__IDENTIFIER] 320 #define for_range_identifier cp_global_trees[CPTI_FOR_RANGE_IDENTIFIER] 321 #define for_begin_identifier cp_global_trees[CPTI_FOR_BEGIN_IDENTIFIER] 322 #define for_end_identifier cp_global_trees[CPTI_FOR_END_IDENTIFIER] 323 #define abi_tag_identifier cp_global_trees[CPTI_ABI_TAG_IDENTIFIER] 324 #define aligned_identifier cp_global_trees[CPTI_ALIGNED_IDENTIFIER] 325 #define begin_identifier cp_global_trees[CPTI_BEGIN_IDENTIFIER] 326 #define end_identifier cp_global_trees[CPTI_END_IDENTIFIER] 327 #define get__identifier cp_global_trees[CPTI_GET_IDENTIFIER] 328 #define gnu_identifier cp_global_trees[CPTI_GNU_IDENTIFIER] 329 #define tuple_element_identifier cp_global_trees[CPTI_TUPLE_ELEMENT_IDENTIFIER] 330 #define tuple_size_identifier cp_global_trees[CPTI_TUPLE_SIZE_IDENTIFIER] 331 #define type_identifier cp_global_trees[CPTI_TYPE_IDENTIFIER] 332 #define value_identifier cp_global_trees[CPTI_VALUE_IDENTIFIER] 333 #define fun_identifier cp_global_trees[CPTI_FUN_IDENTIFIER] 334 #define closure_identifier cp_global_trees[CPTI_CLOSURE_IDENTIFIER] 335 #define heap_uninit_identifier cp_global_trees[CPTI_HEAP_UNINIT_IDENTIFIER] 336 #define heap_identifier cp_global_trees[CPTI_HEAP_IDENTIFIER] 337 #define heap_deleted_identifier cp_global_trees[CPTI_HEAP_DELETED_IDENTIFIER] 338 #define heap_vec_uninit_identifier cp_global_trees[CPTI_HEAP_VEC_UNINIT_IDENTIFIER] 339 #define heap_vec_identifier cp_global_trees[CPTI_HEAP_VEC_IDENTIFIER] 340 #define omp_identifier cp_global_trees[CPTI_OMP_IDENTIFIER] 341 #define lang_name_c cp_global_trees[CPTI_LANG_NAME_C] 342 #define lang_name_cplusplus cp_global_trees[CPTI_LANG_NAME_CPLUSPLUS] 343 344 /* Exception specifiers used for throw(), noexcept(true), 345 noexcept(false) and deferred noexcept. We rely on these being 346 uncloned. */ 347 #define empty_except_spec cp_global_trees[CPTI_EMPTY_EXCEPT_SPEC] 348 #define noexcept_true_spec cp_global_trees[CPTI_NOEXCEPT_TRUE_SPEC] 349 #define noexcept_false_spec cp_global_trees[CPTI_NOEXCEPT_FALSE_SPEC] 350 #define noexcept_deferred_spec cp_global_trees[CPTI_NOEXCEPT_DEFERRED_SPEC] 351 352 /* Exception handling function declarations. */ 353 #define terminate_fn cp_global_trees[CPTI_TERMINATE_FN] 354 #define call_unexpected_fn cp_global_trees[CPTI_CALL_UNEXPECTED_FN] 355 #define get_exception_ptr_fn cp_global_trees[CPTI_GET_EXCEPTION_PTR_FN] 356 #define begin_catch_fn cp_global_trees[CPTI_BEGIN_CATCH_FN] 357 #define end_catch_fn cp_global_trees[CPTI_END_CATCH_FN] 358 #define allocate_exception_fn cp_global_trees[CPTI_ALLOCATE_EXCEPTION_FN] 359 #define free_exception_fn cp_global_trees[CPTI_FREE_EXCEPTION_FN] 360 #define throw_fn cp_global_trees[CPTI_THROW_FN] 361 #define rethrow_fn cp_global_trees[CPTI_RETHROW_FN] 362 363 /* The type of the function-pointer argument to "__cxa_atexit" (or 364 "std::atexit", if "__cxa_atexit" is not being used). */ 365 #define atexit_fn_ptr_type_node cp_global_trees[CPTI_ATEXIT_FN_PTR_TYPE] 366 367 /* A pointer to `std::atexit'. */ 368 #define atexit_node cp_global_trees[CPTI_ATEXIT] 369 370 /* A pointer to `__dso_handle'. */ 371 #define dso_handle_node cp_global_trees[CPTI_DSO_HANDLE] 372 373 /* The declaration of the dynamic_cast runtime. */ 374 #define dynamic_cast_node cp_global_trees[CPTI_DCAST] 375 376 /* The type of a destructor. */ 377 #define cleanup_type cp_global_trees[CPTI_CLEANUP_TYPE] 378 379 /* The type of the vtt parameter passed to subobject constructors and 380 destructors. */ 381 #define vtt_parm_type cp_global_trees[CPTI_VTT_PARM_TYPE] 382 383 /* A node which matches any template argument. */ 384 #define any_targ_node cp_global_trees[CPTI_ANY_TARG] 385 386 /* std::source_location::__impl class. */ 387 #define source_location_impl cp_global_trees[CPTI_SOURCE_LOCATION_IMPL] 388 389 /* Node to indicate default access. This must be distinct from the 390 access nodes in tree.h. */ 391 392 #define access_default_node null_node 393 394 /* Variant of dfloat{32,64,128}_type_node only used for fundamental 395 rtti purposes if DFP is disabled. */ 396 #define fallback_dfloat32_type cp_global_trees[CPTI_FALLBACK_DFLOAT32_TYPE] 397 #define fallback_dfloat64_type cp_global_trees[CPTI_FALLBACK_DFLOAT64_TYPE] 398 #define fallback_dfloat128_type cp_global_trees[CPTI_FALLBACK_DFLOAT128_TYPE] 399 400 401 #include "name-lookup.h" 403 404 /* Usage of TREE_LANG_FLAG_?: 405 0: IDENTIFIER_KIND_BIT_0 (in IDENTIFIER_NODE) 406 NEW_EXPR_USE_GLOBAL (in NEW_EXPR). 407 COND_EXPR_IS_VEC_DELETE (in COND_EXPR). 408 DELETE_EXPR_USE_GLOBAL (in DELETE_EXPR). 409 CLEANUP_P (in TRY_BLOCK) 410 AGGR_INIT_VIA_CTOR_P (in AGGR_INIT_EXPR) 411 PTRMEM_OK_P (in ADDR_EXPR, OFFSET_REF, SCOPE_REF) 412 PAREN_STRING_LITERAL_P (in STRING_CST) 413 CP_DECL_THREAD_LOCAL_P (in VAR_DECL) 414 KOENIG_LOOKUP_P (in CALL_EXPR) 415 STATEMENT_LIST_NO_SCOPE (in STATEMENT_LIST). 416 EXPR_STMT_STMT_EXPR_RESULT (in EXPR_STMT) 417 STMT_EXPR_NO_SCOPE (in STMT_EXPR) 418 BIND_EXPR_TRY_BLOCK (in BIND_EXPR) 419 TYPENAME_IS_ENUM_P (in TYPENAME_TYPE) 420 OMP_FOR_GIMPLIFYING_P (in OMP_FOR, OMP_SIMD, OMP_DISTRIBUTE, 421 and OMP_TASKLOOP) 422 BASELINK_QUALIFIED_P (in BASELINK) 423 TARGET_EXPR_IMPLICIT_P (in TARGET_EXPR) 424 TEMPLATE_PARM_PARAMETER_PACK (in TEMPLATE_PARM_INDEX) 425 ATTR_IS_DEPENDENT (in the TREE_LIST for an attribute) 426 ABI_TAG_IMPLICIT (in the TREE_LIST for the argument of abi_tag) 427 LAMBDA_CAPTURE_EXPLICIT_P (in a TREE_LIST in LAMBDA_EXPR_CAPTURE_LIST) 428 PARENTHESIZED_LIST_P (in the TREE_LIST for a parameter-declaration-list) 429 CONSTRUCTOR_IS_DIRECT_INIT (in CONSTRUCTOR) 430 LAMBDA_EXPR_CAPTURES_THIS_P (in LAMBDA_EXPR) 431 DECLTYPE_FOR_LAMBDA_CAPTURE (in DECLTYPE_TYPE) 432 VEC_INIT_EXPR_IS_CONSTEXPR (in VEC_INIT_EXPR) 433 DECL_OVERRIDE_P (in FUNCTION_DECL) 434 IMPLICIT_CONV_EXPR_DIRECT_INIT (in IMPLICIT_CONV_EXPR) 435 TRANSACTION_EXPR_IS_STMT (in TRANSACTION_EXPR) 436 CONVERT_EXPR_VBASE_PATH (in CONVERT_EXPR) 437 PACK_EXPANSION_LOCAL_P (in *_PACK_EXPANSION) 438 TINFO_HAS_ACCESS_ERRORS (in TEMPLATE_INFO) 439 SIZEOF_EXPR_TYPE_P (in SIZEOF_EXPR) 440 COMPOUND_REQ_NOEXCEPT_P (in COMPOUND_REQ) 441 WILDCARD_PACK_P (in WILDCARD_DECL) 442 BLOCK_OUTER_CURLY_BRACE_P (in BLOCK) 443 FOLD_EXPR_MODOP_P (*_FOLD_EXPR) 444 IF_STMT_CONSTEXPR_P (IF_STMT) 445 DECL_NAMESPACE_INLINE_P (in NAMESPACE_DECL) 446 SWITCH_STMT_ALL_CASES_P (in SWITCH_STMT) 447 REINTERPRET_CAST_P (in NOP_EXPR) 448 ALIGNOF_EXPR_STD_P (in ALIGNOF_EXPR) 449 OVL_DEDUP_P (in OVERLOAD) 450 ATOMIC_CONSTR_MAP_INSTANTIATED_P (in ATOMIC_CONSTR) 451 1: IDENTIFIER_KIND_BIT_1 (in IDENTIFIER_NODE) 452 TI_PENDING_TEMPLATE_FLAG. 453 TEMPLATE_PARMS_FOR_INLINE. 454 DELETE_EXPR_USE_VEC (in DELETE_EXPR). 455 (TREE_CALLS_NEW) (in _EXPR or _REF) (commented-out). 456 ICS_ELLIPSIS_FLAG (in _CONV) 457 DECL_INITIALIZED_P (in VAR_DECL) 458 TYPENAME_IS_CLASS_P (in TYPENAME_TYPE) 459 STMT_IS_FULL_EXPR_P (in _STMT) 460 TARGET_EXPR_LIST_INIT_P (in TARGET_EXPR) 461 LAMBDA_EXPR_MUTABLE_P (in LAMBDA_EXPR) 462 DECL_FINAL_P (in FUNCTION_DECL) 463 QUALIFIED_NAME_IS_TEMPLATE (in SCOPE_REF) 464 CONSTRUCTOR_IS_DEPENDENT (in CONSTRUCTOR) 465 TINFO_USED_TEMPLATE_ID (in TEMPLATE_INFO) 466 PACK_EXPANSION_SIZEOF_P (in *_PACK_EXPANSION) 467 OVL_USING_P (in OVERLOAD) 468 IMPLICIT_CONV_EXPR_NONTYPE_ARG (in IMPLICIT_CONV_EXPR) 469 BASELINK_FUNCTIONS_MAYBE_INCOMPLETE_P (in BASELINK) 470 BIND_EXPR_VEC_DTOR (in BIND_EXPR) 471 ATOMIC_CONSTR_EXPR_FROM_CONCEPT_P (in ATOMIC_CONSTR) 472 2: IDENTIFIER_KIND_BIT_2 (in IDENTIFIER_NODE) 473 ICS_THIS_FLAG (in _CONV) 474 DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (in VAR_DECL) 475 STATEMENT_LIST_TRY_BLOCK (in STATEMENT_LIST) 476 TYPENAME_IS_RESOLVING_P (in TYPENAME_TYPE) 477 TARGET_EXPR_DIRECT_INIT_P (in TARGET_EXPR) 478 FNDECL_USED_AUTO (in FUNCTION_DECL) 479 DECLTYPE_FOR_LAMBDA_PROXY (in DECLTYPE_TYPE) 480 REF_PARENTHESIZED_P (in COMPONENT_REF, INDIRECT_REF, SCOPE_REF, 481 VIEW_CONVERT_EXPR, PAREN_EXPR) 482 AGGR_INIT_ZERO_FIRST (in AGGR_INIT_EXPR) 483 CONSTRUCTOR_MUTABLE_POISON (in CONSTRUCTOR) 484 OVL_HIDDEN_P (in OVERLOAD) 485 IF_STMT_CONSTEVAL_P (in IF_STMT) 486 SWITCH_STMT_NO_BREAK_P (in SWITCH_STMT) 487 LAMBDA_EXPR_CAPTURE_OPTIMIZED (in LAMBDA_EXPR) 488 IMPLICIT_CONV_EXPR_BRACED_INIT (in IMPLICIT_CONV_EXPR) 489 PACK_EXPANSION_AUTO_P (in *_PACK_EXPANSION) 490 3: IMPLICIT_RVALUE_P (in NON_LVALUE_EXPR or STATIC_CAST_EXPR) 491 ICS_BAD_FLAG (in _CONV) 492 FN_TRY_BLOCK_P (in TRY_BLOCK) 493 BIND_EXPR_BODY_BLOCK (in BIND_EXPR) 494 CALL_EXPR_ORDERED_ARGS (in CALL_EXPR, AGGR_INIT_EXPR) 495 DECLTYPE_FOR_REF_CAPTURE (in DECLTYPE_TYPE) 496 CONSTRUCTOR_C99_COMPOUND_LITERAL (in CONSTRUCTOR) 497 OVL_NESTED_P (in OVERLOAD) 498 DECL_MODULE_EXPORT_P (in _DECL) 499 PACK_EXPANSION_FORCE_EXTRA_ARGS_P (in *_PACK_EXPANSION) 500 4: IDENTIFIER_MARKED (IDENTIFIER_NODEs) 501 TREE_HAS_CONSTRUCTOR (in INDIRECT_REF, SAVE_EXPR, CONSTRUCTOR, 502 CALL_EXPR, or FIELD_DECL). 503 DECL_TINFO_P (in VAR_DECL, TYPE_DECL) 504 FUNCTION_REF_QUALIFIED (in FUNCTION_TYPE, METHOD_TYPE) 505 OVL_LOOKUP_P (in OVERLOAD) 506 LOOKUP_FOUND_P (in RECORD_TYPE, UNION_TYPE, ENUMERAL_TYPE, NAMESPACE_DECL) 507 FNDECL_MANIFESTLY_CONST_EVALUATED (in FUNCTION_DECL) 508 5: IDENTIFIER_VIRTUAL_P (in IDENTIFIER_NODE) 509 FUNCTION_RVALUE_QUALIFIED (in FUNCTION_TYPE, METHOD_TYPE) 510 CALL_EXPR_REVERSE_ARGS (in CALL_EXPR, AGGR_INIT_EXPR) 511 CONSTRUCTOR_PLACEHOLDER_BOUNDARY (in CONSTRUCTOR) 512 OVL_EXPORT_P (in OVERLOAD) 513 6: TYPE_MARKED_P (in _TYPE) 514 DECL_NONTRIVIALLY_INITIALIZED_P (in VAR_DECL) 515 RANGE_FOR_IVDEP (in RANGE_FOR_STMT) 516 CALL_EXPR_OPERATOR_SYNTAX (in CALL_EXPR, AGGR_INIT_EXPR) 517 CONSTRUCTOR_IS_DESIGNATED_INIT (in CONSTRUCTOR) 518 519 Usage of TYPE_LANG_FLAG_?: 520 0: TYPE_DEPENDENT_P 521 1: TYPE_HAS_USER_CONSTRUCTOR. 522 2: TYPE_HAS_LATE_RETURN_TYPE (in FUNCTION_TYPE, METHOD_TYPE) 523 TYPE_PTRMEMFUNC_FLAG (in RECORD_TYPE) 524 4: TYPE_HAS_NONTRIVIAL_DESTRUCTOR 525 5: CLASS_TYPE_P (in RECORD_TYPE and UNION_TYPE) 526 ENUM_FIXED_UNDERLYING_TYPE_P (in ENUMERAL_TYPE) 527 AUTO_IS_DECLTYPE (in TEMPLATE_TYPE_PARM) 528 6: TYPE_DEPENDENT_P_VALID 529 530 Usage of DECL_LANG_FLAG_?: 531 0: DECL_TEMPLATE_PARM_P (in PARM_DECL, CONST_DECL, TYPE_DECL, or TEMPLATE_DECL) 532 DECL_LOCAL_DECL_P (in FUNCTION_DECL, VAR_DECL) 533 DECL_MUTABLE_P (in FIELD_DECL) 534 DECL_DEPENDENT_P (in USING_DECL) 535 LABEL_DECL_BREAK (in LABEL_DECL) 536 1: C_TYPEDEF_EXPLICITLY_SIGNED (in TYPE_DECL). 537 DECL_TEMPLATE_INSTANTIATED (in a VAR_DECL or a FUNCTION_DECL) 538 DECL_MEMBER_TEMPLATE_P (in TEMPLATE_DECL) 539 USING_DECL_TYPENAME_P (in USING_DECL) 540 DECL_VLA_CAPTURE_P (in FIELD_DECL) 541 DECL_ARRAY_PARAMETER_P (in PARM_DECL) 542 LABEL_DECL_CONTINUE (in LABEL_DECL) 543 2: DECL_THIS_EXTERN (in VAR_DECL, FUNCTION_DECL or PARM_DECL) 544 DECL_IMPLICIT_TYPEDEF_P (in a TYPE_DECL) 545 DECL_CONSTRAINT_VAR_P (in a PARM_DECL) 546 TEMPLATE_DECL_COMPLEX_ALIAS_P (in TEMPLATE_DECL) 547 DECL_INSTANTIATING_NSDMI_P (in a FIELD_DECL) 548 LABEL_DECL_CDTOR (in LABEL_DECL) 549 USING_DECL_UNRELATED_P (in USING_DECL) 550 3: DECL_IN_AGGR_P. 551 4: DECL_C_BIT_FIELD (in a FIELD_DECL) 552 DECL_ANON_UNION_VAR_P (in a VAR_DECL) 553 DECL_SELF_REFERENCE_P (in a TYPE_DECL) 554 DECL_INVALID_OVERRIDER_P (in a FUNCTION_DECL) 555 DECL_UNINSTANIATED_TEMPLATE_FRIEND_P (in TEMPLATE_DECL) 556 5: DECL_INTERFACE_KNOWN. 557 6: DECL_THIS_STATIC (in VAR_DECL, FUNCTION_DECL or PARM_DECL) 558 DECL_FIELD_IS_BASE (in FIELD_DECL) 559 TYPE_DECL_ALIAS_P (in TYPE_DECL) 560 7: DECL_THUNK_P (in a member FUNCTION_DECL) 561 DECL_NORMAL_CAPTURE_P (in FIELD_DECL) 562 DECL_DECLARED_CONSTINIT_P (in VAR_DECL) 563 8: DECL_DECLARED_CONSTEXPR_P (in VAR_DECL, FUNCTION_DECL) 564 565 Usage of language-independent fields in a language-dependent manner: 566 567 TYPE_ALIAS_SET 568 This field is used by TYPENAME_TYPEs, TEMPLATE_TYPE_PARMs, and so 569 forth as a substitute for the mark bits provided in `lang_type'. 570 At present, only the six low-order bits are used. 571 572 TYPE_LANG_SLOT_1 573 For a FUNCTION_TYPE or METHOD_TYPE, this is TYPE_RAISES_EXCEPTIONS. 574 For a POINTER_TYPE (to a METHOD_TYPE), this is TYPE_PTRMEMFUNC_TYPE. 575 For an ENUMERAL_TYPE, BOUND_TEMPLATE_TEMPLATE_PARM_TYPE, 576 RECORD_TYPE or UNION_TYPE this is TYPE_TEMPLATE_INFO, 577 578 BINFO_VIRTUALS 579 For a binfo, this is a TREE_LIST. There is an entry for each 580 virtual function declared either in BINFO or its direct and 581 indirect primary bases. 582 583 The BV_DELTA of each node gives the amount by which to adjust the 584 `this' pointer when calling the function. If the method is an 585 overridden version of a base class method, then it is assumed 586 that, prior to adjustment, the this pointer points to an object 587 of the base class. 588 589 The BV_VCALL_INDEX of each node, if non-NULL, gives the vtable 590 index of the vcall offset for this entry. 591 592 The BV_FN is the declaration for the virtual function itself. 593 594 If BV_LOST_PRIMARY is set, it means that this entry is for a lost 595 primary virtual base and can be left null in the vtable. 596 597 BINFO_VTABLE 598 This is an expression with POINTER_TYPE that gives the value 599 to which the vptr should be initialized. Use get_vtbl_decl_for_binfo 600 to extract the VAR_DECL for the complete vtable. 601 602 DECL_VINDEX 603 This field is NULL for a non-virtual function. For a virtual 604 function, it is eventually set to an INTEGER_CST indicating the 605 index in the vtable at which this function can be found. When 606 a virtual function is declared, but before it is known what 607 function is overridden, this field is the error_mark_node. 608 609 Temporarily, it may be set to a TREE_LIST whose TREE_VALUE is 610 the virtual function this one overrides, and whose TREE_CHAIN is 611 the old DECL_VINDEX. */ 612 613 /* Language-specific tree checkers. */ 614 615 #define VAR_OR_FUNCTION_DECL_CHECK(NODE) \ 616 TREE_CHECK2(NODE,VAR_DECL,FUNCTION_DECL) 617 618 #define TYPE_FUNCTION_OR_TEMPLATE_DECL_CHECK(NODE) \ 619 TREE_CHECK3(NODE,TYPE_DECL,TEMPLATE_DECL,FUNCTION_DECL) 620 621 #define TYPE_FUNCTION_OR_TEMPLATE_DECL_P(NODE) \ 622 (TREE_CODE (NODE) == TYPE_DECL || TREE_CODE (NODE) == TEMPLATE_DECL \ 623 || TREE_CODE (NODE) == FUNCTION_DECL) 624 625 #define VAR_FUNCTION_OR_PARM_DECL_CHECK(NODE) \ 626 TREE_CHECK3(NODE,VAR_DECL,FUNCTION_DECL,PARM_DECL) 627 628 #define VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK(NODE) \ 629 TREE_CHECK4(NODE,VAR_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL) 630 631 #define VAR_TEMPL_TYPE_FIELD_OR_FUNCTION_DECL_CHECK(NODE) \ 632 TREE_CHECK5(NODE,VAR_DECL,FIELD_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL) 633 634 #define BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK(NODE) \ 635 TREE_CHECK(NODE,BOUND_TEMPLATE_TEMPLATE_PARM) 636 637 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007) 638 639 /* Returns t iff the node can have a TEMPLATE_INFO field. */ 640 641 inline tree 642 template_info_decl_check (const_tree t, const char* f, int l, const char* fn) 643 { 644 switch (TREE_CODE (t)) 645 { 646 case VAR_DECL: 647 case FUNCTION_DECL: 648 case FIELD_DECL: 649 case TYPE_DECL: 650 case CONCEPT_DECL: 651 case TEMPLATE_DECL: 652 return const_cast<tree>(t); 653 default: 654 break; 655 } 656 tree_check_failed (t, f, l, fn, 657 VAR_DECL, FUNCTION_DECL, FIELD_DECL, TYPE_DECL, 658 CONCEPT_DECL, TEMPLATE_DECL, 0); 659 gcc_unreachable (); 660 } 661 662 #define TEMPLATE_INFO_DECL_CHECK(NODE) \ 663 template_info_decl_check ((NODE), __FILE__, __LINE__, __FUNCTION__) 664 665 #define THUNK_FUNCTION_CHECK(NODE) __extension__ \ 666 ({ __typeof (NODE) const __t = (NODE); \ 667 if (TREE_CODE (__t) != FUNCTION_DECL || !__t->decl_common.lang_specific \ 668 || !__t->decl_common.lang_specific->u.fn.thunk_p) \ 669 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, 0); \ 670 __t; }) 671 672 #else /* ENABLE_TREE_CHECKING */ 673 674 #define TEMPLATE_INFO_DECL_CHECK(NODE) (NODE) 675 #define THUNK_FUNCTION_CHECK(NODE) (NODE) 676 677 #endif /* ENABLE_TREE_CHECKING */ 678 679 /* Language-dependent contents of an identifier. */ 681 682 struct GTY(()) lang_identifier { 683 struct c_common_identifier c_common; 684 cxx_binding *bindings; 685 }; 686 687 /* Return a typed pointer version of T if it designates a 688 C++ front-end identifier. */ 689 inline lang_identifier* 690 identifier_p (tree t) 691 { 692 if (TREE_CODE (t) == IDENTIFIER_NODE) 693 return (lang_identifier*) t; 694 return NULL; 695 } 696 697 #define LANG_IDENTIFIER_CAST(NODE) \ 698 ((struct lang_identifier*)IDENTIFIER_NODE_CHECK (NODE)) 699 700 struct GTY(()) template_parm_index { 701 struct tree_common common; 702 int index; 703 int level; 704 int orig_level; 705 tree decl; 706 }; 707 708 struct GTY(()) ptrmem_cst { 709 struct tree_common common; 710 tree member; 711 location_t locus; 712 }; 713 typedef struct ptrmem_cst * ptrmem_cst_t; 714 715 #define CLEANUP_P(NODE) TREE_LANG_FLAG_0 (TRY_BLOCK_CHECK (NODE)) 716 717 #define BIND_EXPR_TRY_BLOCK(NODE) \ 718 TREE_LANG_FLAG_0 (BIND_EXPR_CHECK (NODE)) 719 720 /* This BIND_EXPR is from build_vec_delete_1. */ 721 #define BIND_EXPR_VEC_DTOR(NODE) \ 722 TREE_LANG_FLAG_1 (BIND_EXPR_CHECK (NODE)) 723 724 /* Used to mark the block around the member initializers and cleanups. */ 725 #define BIND_EXPR_BODY_BLOCK(NODE) \ 726 TREE_LANG_FLAG_3 (BIND_EXPR_CHECK (NODE)) 727 #define FUNCTION_NEEDS_BODY_BLOCK(NODE) \ 728 (DECL_CONSTRUCTOR_P (NODE) || DECL_DESTRUCTOR_P (NODE) \ 729 || LAMBDA_FUNCTION_P (NODE)) 730 731 #define STATEMENT_LIST_NO_SCOPE(NODE) \ 732 TREE_LANG_FLAG_0 (STATEMENT_LIST_CHECK (NODE)) 733 #define STATEMENT_LIST_TRY_BLOCK(NODE) \ 734 TREE_LANG_FLAG_2 (STATEMENT_LIST_CHECK (NODE)) 735 736 /* Mark the outer curly brace BLOCK. */ 737 #define BLOCK_OUTER_CURLY_BRACE_P(NODE) TREE_LANG_FLAG_0 (BLOCK_CHECK (NODE)) 738 739 /* Nonzero if this statement should be considered a full-expression, 740 i.e., if temporaries created during this statement should have 741 their destructors run at the end of this statement. */ 742 #define STMT_IS_FULL_EXPR_P(NODE) TREE_LANG_FLAG_1 ((NODE)) 743 744 /* Marks the result of a statement expression. */ 745 #define EXPR_STMT_STMT_EXPR_RESULT(NODE) \ 746 TREE_LANG_FLAG_0 (EXPR_STMT_CHECK (NODE)) 747 748 /* Nonzero if this statement-expression does not have an associated scope. */ 749 #define STMT_EXPR_NO_SCOPE(NODE) \ 750 TREE_LANG_FLAG_0 (STMT_EXPR_CHECK (NODE)) 751 752 #define COND_EXPR_IS_VEC_DELETE(NODE) \ 753 TREE_LANG_FLAG_0 (COND_EXPR_CHECK (NODE)) 754 755 /* Nonzero if this NOP_EXPR is a reinterpret_cast. Such conversions 756 are not constexprs. Other NOP_EXPRs are. */ 757 #define REINTERPRET_CAST_P(NODE) \ 758 TREE_LANG_FLAG_0 (NOP_EXPR_CHECK (NODE)) 759 760 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, in the usual 761 sense of `same'. */ 762 #define same_type_p(TYPE1, TYPE2) \ 763 comptypes ((TYPE1), (TYPE2), COMPARE_STRICT) 764 765 /* Returns nonzero iff NODE is a declaration for the global function 766 `main'. */ 767 #define DECL_MAIN_P(NODE) \ 768 (DECL_EXTERN_C_FUNCTION_P (NODE) \ 769 && DECL_NAME (NODE) != NULL_TREE \ 770 && MAIN_NAME_P (DECL_NAME (NODE)) \ 771 && flag_hosted) 772 773 /* Lookup walker marking. */ 774 #define LOOKUP_SEEN_P(NODE) TREE_VISITED (NODE) 775 #define LOOKUP_FOUND_P(NODE) \ 776 TREE_LANG_FLAG_4 (TREE_CHECK4 (NODE,RECORD_TYPE,UNION_TYPE,ENUMERAL_TYPE,\ 777 NAMESPACE_DECL)) 778 779 /* These two accessors should only be used by OVL manipulators. 780 Other users should use iterators and convenience functions. */ 781 #define OVL_FUNCTION(NODE) \ 782 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->function) 783 #define OVL_CHAIN(NODE) \ 784 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->common.chain) 785 786 /* If set, this or a subsequent overload contains decls that need deduping. */ 787 #define OVL_DEDUP_P(NODE) TREE_LANG_FLAG_0 (OVERLOAD_CHECK (NODE)) 788 /* If set, this was imported in a using declaration. */ 789 #define OVL_USING_P(NODE) TREE_LANG_FLAG_1 (OVERLOAD_CHECK (NODE)) 790 /* If set, this overload is a hidden decl. */ 791 #define OVL_HIDDEN_P(NODE) TREE_LANG_FLAG_2 (OVERLOAD_CHECK (NODE)) 792 /* If set, this overload contains a nested overload. */ 793 #define OVL_NESTED_P(NODE) TREE_LANG_FLAG_3 (OVERLOAD_CHECK (NODE)) 794 /* If set, this overload was constructed during lookup. */ 795 #define OVL_LOOKUP_P(NODE) TREE_LANG_FLAG_4 (OVERLOAD_CHECK (NODE)) 796 /* If set, this OVL_USING_P overload is exported. */ 797 #define OVL_EXPORT_P(NODE) TREE_LANG_FLAG_5 (OVERLOAD_CHECK (NODE)) 798 799 /* The first decl of an overload. */ 800 #define OVL_FIRST(NODE) ovl_first (NODE) 801 /* The name of the overload set. */ 802 #define OVL_NAME(NODE) DECL_NAME (OVL_FIRST (NODE)) 803 804 /* Whether this is a set of overloaded functions. TEMPLATE_DECLS are 805 always wrapped in an OVERLOAD, so we don't need to check them 806 here. */ 807 #define OVL_P(NODE) \ 808 (TREE_CODE (NODE) == FUNCTION_DECL || TREE_CODE (NODE) == OVERLOAD) 809 /* Whether this is a single member overload. */ 810 #define OVL_SINGLE_P(NODE) \ 811 (TREE_CODE (NODE) != OVERLOAD || !OVL_CHAIN (NODE)) 812 813 /* OVL_HIDDEN_P nodes come before other nodes. */ 814 815 struct GTY(()) tree_overload { 816 struct tree_common common; 817 tree function; 818 }; 819 820 /* Iterator for a 1 dimensional overload. Permits iterating over the 821 outer level of a 2-d overload when explicitly enabled. */ 822 823 class ovl_iterator { 824 tree ovl; 825 const bool allow_inner; /* Only used when checking. */ 826 827 public: 828 explicit ovl_iterator (tree o, bool allow = false) 829 : ovl (o), allow_inner (allow) 830 { 831 } 832 833 public: 834 operator bool () const 835 { 836 return ovl; 837 } 838 ovl_iterator &operator++ () 839 { 840 ovl = TREE_CODE (ovl) != OVERLOAD ? NULL_TREE : OVL_CHAIN (ovl); 841 return *this; 842 } 843 tree operator* () const 844 { 845 tree fn = TREE_CODE (ovl) != OVERLOAD ? ovl : OVL_FUNCTION (ovl); 846 847 /* Check this is not an unexpected 2-dimensional overload. */ 848 gcc_checking_assert (allow_inner || TREE_CODE (fn) != OVERLOAD); 849 850 return fn; 851 } 852 bool operator== (const ovl_iterator &o) const 853 { 854 return ovl == o.ovl; 855 } 856 tree get_using () const 857 { 858 gcc_checking_assert (using_p ()); 859 return ovl; 860 } 861 862 public: 863 /* Whether this overload was introduced by a using decl. */ 864 bool using_p () const 865 { 866 return (TREE_CODE (ovl) == USING_DECL 867 || (TREE_CODE (ovl) == OVERLOAD && OVL_USING_P (ovl))); 868 } 869 /* Whether this using is being exported. */ 870 bool exporting_p () const 871 { 872 return OVL_EXPORT_P (get_using ()); 873 } 874 875 bool hidden_p () const 876 { 877 return TREE_CODE (ovl) == OVERLOAD && OVL_HIDDEN_P (ovl); 878 } 879 880 public: 881 tree remove_node (tree head) 882 { 883 return remove_node (head, ovl); 884 } 885 tree reveal_node (tree head) 886 { 887 return reveal_node (head, ovl); 888 } 889 890 protected: 891 /* If we have a nested overload, point at the inner overload and 892 return the next link on the outer one. */ 893 tree maybe_push () 894 { 895 tree r = NULL_TREE; 896 897 if (ovl && TREE_CODE (ovl) == OVERLOAD && OVL_NESTED_P (ovl)) 898 { 899 r = OVL_CHAIN (ovl); 900 ovl = OVL_FUNCTION (ovl); 901 } 902 return r; 903 } 904 /* Restore an outer nested overload. */ 905 void pop (tree outer) 906 { 907 gcc_checking_assert (!ovl); 908 ovl = outer; 909 } 910 911 private: 912 /* We make these static functions to avoid the address of the 913 iterator escaping the local context. */ 914 static tree remove_node (tree head, tree node); 915 static tree reveal_node (tree ovl, tree node); 916 }; 917 918 /* Treat a tree as a range of ovl_iterator, e.g. 919 for (tree f : ovl_range (fns)) { ... } */ 920 921 class ovl_range 922 { 923 tree t; 924 bool allow; 925 public: 926 explicit ovl_range (tree t, bool allow = false): t(t), allow(allow) { } 927 ovl_iterator begin() { return ovl_iterator (t, allow); } 928 ovl_iterator end() { return ovl_iterator (NULL_TREE, allow); } 929 }; 930 931 /* Iterator over a (potentially) 2 dimensional overload, which is 932 produced by name lookup. */ 933 934 class lkp_iterator : public ovl_iterator { 935 typedef ovl_iterator parent; 936 937 tree outer; 938 939 public: 940 explicit lkp_iterator (tree o) 941 : parent (o, true), outer (maybe_push ()) 942 { 943 } 944 945 public: 946 lkp_iterator &operator++ () 947 { 948 bool repush = !outer; 949 950 if (!parent::operator++ () && !repush) 951 { 952 pop (outer); 953 repush = true; 954 } 955 956 if (repush) 957 outer = maybe_push (); 958 959 return *this; 960 } 961 }; 962 963 /* Treat a tree as a range of lkp_iterator, e.g. 964 for (tree f : lkp_range (fns)) { ... } */ 965 966 class lkp_range 967 { 968 tree t; 969 public: 970 lkp_range (tree t): t(t) { } 971 lkp_iterator begin() { return lkp_iterator (t); } 972 lkp_iterator end() { return lkp_iterator (NULL_TREE); } 973 }; 974 975 /* hash traits for declarations. Hashes potential overload sets via 976 DECL_NAME. */ 977 978 struct named_decl_hash : ggc_remove <tree> { 979 typedef tree value_type; /* A DECL or OVERLOAD */ 980 typedef tree compare_type; /* An identifier. */ 981 982 inline static hashval_t hash (const value_type decl); 983 inline static bool equal (const value_type existing, compare_type candidate); 984 985 static const bool empty_zero_p = true; 986 static inline void mark_empty (value_type &p) {p = NULL_TREE;} 987 static inline bool is_empty (value_type p) {return !p;} 988 989 /* Nothing is deletable. Everything is insertable. */ 990 static bool is_deleted (value_type) { return false; } 991 static void mark_deleted (value_type) { gcc_unreachable (); } 992 }; 993 994 /* Simplified unique_ptr clone to release a tree vec on exit. */ 995 996 class releasing_vec 997 { 998 public: 999 typedef vec<tree, va_gc> vec_t; 1000 1001 releasing_vec (vec_t *v): v(v) { } 1002 releasing_vec (): v(make_tree_vector ()) { } 1003 1004 /* Copy ops are deliberately declared but not defined, 1005 copies must always be elided. */ 1006 releasing_vec (const releasing_vec &); 1007 releasing_vec &operator= (const releasing_vec &); 1008 1009 vec_t &operator* () const { return *v; } 1010 vec_t *operator-> () const { return v; } 1011 vec_t *get() const { return v; } 1012 operator vec_t *() const { return v; } 1013 vec_t ** operator& () { return &v; } 1014 1015 /* Breaks pointer/value consistency for convenience. This takes ptrdiff_t 1016 rather than unsigned to avoid ambiguity with the built-in operator[] 1017 (bootstrap/91828). */ 1018 tree& operator[] (ptrdiff_t i) const { return (*v)[i]; } 1019 1020 tree *begin() { return ::begin (v); } 1021 tree *end() { return ::end (v); } 1022 1023 void release () { release_tree_vector (v); v = NULL; } 1024 1025 ~releasing_vec () { release_tree_vector (v); } 1026 private: 1027 vec_t *v; 1028 }; 1029 /* Forwarding functions for vec_safe_* that might reallocate. */ 1030 inline tree* vec_safe_push (releasing_vec& r, const tree &t CXX_MEM_STAT_INFO) 1031 { return vec_safe_push (*&r, t PASS_MEM_STAT); } 1032 inline bool vec_safe_reserve (releasing_vec& r, unsigned n, bool e = false CXX_MEM_STAT_INFO) 1033 { return vec_safe_reserve (*&r, n, e PASS_MEM_STAT); } 1034 inline unsigned vec_safe_length (releasing_vec &r) 1035 { return r->length(); } 1036 inline void vec_safe_splice (releasing_vec &r, vec<tree, va_gc> *p CXX_MEM_STAT_INFO) 1037 { vec_safe_splice (*&r, p PASS_MEM_STAT); } 1038 void release_tree_vector (releasing_vec &); // cause link error 1039 1040 struct GTY(()) tree_template_decl { 1041 struct tree_decl_common common; 1042 tree arguments; 1043 tree result; 1044 }; 1045 1046 /* Returns true iff NODE is a BASELINK. */ 1047 #define BASELINK_P(NODE) \ 1048 (TREE_CODE (NODE) == BASELINK) 1049 /* The BINFO indicating the base in which lookup found the 1050 BASELINK_FUNCTIONS. */ 1051 #define BASELINK_BINFO(NODE) \ 1052 (((struct tree_baselink*) BASELINK_CHECK (NODE))->binfo) 1053 /* The functions referred to by the BASELINK; either a FUNCTION_DECL, 1054 a TEMPLATE_DECL, an OVERLOAD, or a TEMPLATE_ID_EXPR. */ 1055 #define BASELINK_FUNCTIONS(NODE) \ 1056 (((struct tree_baselink*) BASELINK_CHECK (NODE))->functions) 1057 /* If T is a BASELINK, grab the functions, otherwise just T, which is 1058 expected to already be a (list of) functions. */ 1059 #define MAYBE_BASELINK_FUNCTIONS(T) \ 1060 (BASELINK_P (T) ? BASELINK_FUNCTIONS (T) : T) 1061 /* The BINFO in which the search for the functions indicated by this baselink 1062 began. This base is used to determine the accessibility of functions 1063 selected by overload resolution. */ 1064 #define BASELINK_ACCESS_BINFO(NODE) \ 1065 (((struct tree_baselink*) BASELINK_CHECK (NODE))->access_binfo) 1066 /* For a type-conversion operator, the BASELINK_OPTYPE indicates the type 1067 to which the conversion should occur. This value is important if 1068 the BASELINK_FUNCTIONS include a template conversion operator -- 1069 the BASELINK_OPTYPE can be used to determine what type the user 1070 requested. */ 1071 #define BASELINK_OPTYPE(NODE) \ 1072 (TREE_CHAIN (BASELINK_CHECK (NODE))) 1073 /* Nonzero if this baselink was from a qualified lookup. */ 1074 #define BASELINK_QUALIFIED_P(NODE) \ 1075 TREE_LANG_FLAG_0 (BASELINK_CHECK (NODE)) 1076 /* Nonzero if the overload set for this baselink might be incomplete due 1077 to the lookup being performed from an incomplete-class context. */ 1078 #define BASELINK_FUNCTIONS_MAYBE_INCOMPLETE_P(NODE) \ 1079 TREE_LANG_FLAG_1 (BASELINK_CHECK (NODE)) 1080 1081 struct GTY(()) tree_baselink { 1082 struct tree_common common; 1083 tree binfo; 1084 tree functions; 1085 tree access_binfo; 1086 }; 1087 1088 /* The different kinds of ids that we encounter. */ 1089 1090 enum cp_id_kind 1091 { 1092 /* Not an id at all. */ 1093 CP_ID_KIND_NONE, 1094 /* An unqualified-id that is not a template-id. */ 1095 CP_ID_KIND_UNQUALIFIED, 1096 /* An unqualified-id that is a dependent name. */ 1097 CP_ID_KIND_UNQUALIFIED_DEPENDENT, 1098 /* An unqualified template-id. */ 1099 CP_ID_KIND_TEMPLATE_ID, 1100 /* A qualified-id. */ 1101 CP_ID_KIND_QUALIFIED 1102 }; 1103 1104 1105 /* The various kinds of C++0x warnings we encounter. */ 1106 1107 enum cpp0x_warn_str 1108 { 1109 /* extended initializer lists */ 1110 CPP0X_INITIALIZER_LISTS, 1111 /* explicit conversion operators */ 1112 CPP0X_EXPLICIT_CONVERSION, 1113 /* variadic templates */ 1114 CPP0X_VARIADIC_TEMPLATES, 1115 /* lambda expressions */ 1116 CPP0X_LAMBDA_EXPR, 1117 /* C++0x auto */ 1118 CPP0X_AUTO, 1119 /* scoped enums */ 1120 CPP0X_SCOPED_ENUMS, 1121 /* defaulted and deleted functions */ 1122 CPP0X_DEFAULTED_DELETED, 1123 /* inline namespaces */ 1124 CPP0X_INLINE_NAMESPACES, 1125 /* override controls, override/final */ 1126 CPP0X_OVERRIDE_CONTROLS, 1127 /* non-static data member initializers */ 1128 CPP0X_NSDMI, 1129 /* user defined literals */ 1130 CPP0X_USER_DEFINED_LITERALS, 1131 /* delegating constructors */ 1132 CPP0X_DELEGATING_CTORS, 1133 /* inheriting constructors */ 1134 CPP0X_INHERITING_CTORS, 1135 /* C++11 attributes */ 1136 CPP0X_ATTRIBUTES, 1137 /* ref-qualified member functions */ 1138 CPP0X_REF_QUALIFIER 1139 }; 1140 1141 /* The various kinds of operation used by composite_pointer_type. */ 1142 1143 enum composite_pointer_operation 1144 { 1145 /* comparison */ 1146 CPO_COMPARISON, 1147 /* conversion */ 1148 CPO_CONVERSION, 1149 /* conditional expression */ 1150 CPO_CONDITIONAL_EXPR 1151 }; 1152 1153 /* Possible cases of expression list used by build_x_compound_expr_from_list. */ 1154 enum expr_list_kind { 1155 ELK_INIT, /* initializer */ 1156 ELK_MEM_INIT, /* member initializer */ 1157 ELK_FUNC_CAST /* functional cast */ 1158 }; 1159 1160 /* Possible cases of implicit bad rhs conversions. */ 1161 enum impl_conv_rhs { 1162 ICR_DEFAULT_ARGUMENT, /* default argument */ 1163 ICR_CONVERTING, /* converting */ 1164 ICR_INIT, /* initialization */ 1165 ICR_ARGPASS, /* argument passing */ 1166 ICR_RETURN, /* return */ 1167 ICR_ASSIGN /* assignment */ 1168 }; 1169 1170 /* Possible cases of implicit or explicit bad conversions to void. */ 1171 enum impl_conv_void { 1172 ICV_CAST, /* (explicit) conversion to void */ 1173 ICV_SECOND_OF_COND, /* second operand of conditional expression */ 1174 ICV_THIRD_OF_COND, /* third operand of conditional expression */ 1175 ICV_RIGHT_OF_COMMA, /* right operand of comma operator */ 1176 ICV_LEFT_OF_COMMA, /* left operand of comma operator */ 1177 ICV_STATEMENT, /* statement */ 1178 ICV_THIRD_IN_FOR /* for increment expression */ 1179 }; 1180 1181 /* Possible invalid uses of an abstract class that might not have a 1182 specific associated declaration. */ 1183 enum GTY(()) abstract_class_use { 1184 ACU_UNKNOWN, /* unknown or decl provided */ 1185 ACU_CAST, /* cast to abstract class */ 1186 ACU_NEW, /* new-expression of abstract class */ 1187 ACU_THROW, /* throw-expression of abstract class */ 1188 ACU_CATCH, /* catch-parameter of abstract class */ 1189 ACU_ARRAY, /* array of abstract class */ 1190 ACU_RETURN, /* return type of abstract class */ 1191 ACU_PARM /* parameter type of abstract class */ 1192 }; 1193 1194 /* Macros for access to language-specific slots in an identifier. */ 1195 1196 /* Identifiers map directly to block or class-scope bindings. 1197 Namespace-scope bindings are held in hash tables on the respective 1198 namespaces. The identifier bindings are the innermost active 1199 binding, from whence you can get the decl and/or implicit-typedef 1200 of an elaborated type. When not bound to a local entity the 1201 values are NULL. */ 1202 #define IDENTIFIER_BINDING(NODE) \ 1203 (LANG_IDENTIFIER_CAST (NODE)->bindings) 1204 #define REAL_IDENTIFIER_TYPE_VALUE(NODE) TREE_TYPE (NODE) 1205 #define SET_IDENTIFIER_TYPE_VALUE(NODE,TYPE) (TREE_TYPE (NODE) = (TYPE)) 1206 1207 /* Kinds of identifiers. Values are carefully chosen. */ 1208 enum cp_identifier_kind { 1209 cik_normal = 0, /* Not a special identifier. */ 1210 cik_keyword = 1, /* A keyword. */ 1211 cik_ctor = 2, /* Constructor (in-chg, complete or base). */ 1212 cik_dtor = 3, /* Destructor (in-chg, deleting, complete or 1213 base). */ 1214 cik_simple_op = 4, /* Non-assignment operator name. */ 1215 cik_assign_op = 5, /* An assignment operator name. */ 1216 cik_conv_op = 6, /* Conversion operator name. */ 1217 cik_reserved_for_udlit = 7, /* Not yet in use */ 1218 cik_max 1219 }; 1220 1221 /* Kind bits. */ 1222 #define IDENTIFIER_KIND_BIT_0(NODE) \ 1223 TREE_LANG_FLAG_0 (IDENTIFIER_NODE_CHECK (NODE)) 1224 #define IDENTIFIER_KIND_BIT_1(NODE) \ 1225 TREE_LANG_FLAG_1 (IDENTIFIER_NODE_CHECK (NODE)) 1226 #define IDENTIFIER_KIND_BIT_2(NODE) \ 1227 TREE_LANG_FLAG_2 (IDENTIFIER_NODE_CHECK (NODE)) 1228 1229 /* Used by various search routines. */ 1230 #define IDENTIFIER_MARKED(NODE) \ 1231 TREE_LANG_FLAG_4 (IDENTIFIER_NODE_CHECK (NODE)) 1232 1233 /* Nonzero if this identifier is used as a virtual function name somewhere 1234 (optimizes searches). */ 1235 #define IDENTIFIER_VIRTUAL_P(NODE) \ 1236 TREE_LANG_FLAG_5 (IDENTIFIER_NODE_CHECK (NODE)) 1237 1238 /* True if this identifier is a reserved word. C_RID_CODE (node) is 1239 then the RID_* value of the keyword. Value 1. */ 1240 #define IDENTIFIER_KEYWORD_P(NODE) \ 1241 ((!IDENTIFIER_KIND_BIT_2 (NODE)) \ 1242 & (!IDENTIFIER_KIND_BIT_1 (NODE)) \ 1243 & IDENTIFIER_KIND_BIT_0 (NODE)) 1244 1245 /* True if this identifier is the name of a constructor or 1246 destructor. Value 2 or 3. */ 1247 #define IDENTIFIER_CDTOR_P(NODE) \ 1248 ((!IDENTIFIER_KIND_BIT_2 (NODE)) \ 1249 & IDENTIFIER_KIND_BIT_1 (NODE)) 1250 1251 /* True if this identifier is the name of a constructor. Value 2. */ 1252 #define IDENTIFIER_CTOR_P(NODE) \ 1253 (IDENTIFIER_CDTOR_P(NODE) \ 1254 & (!IDENTIFIER_KIND_BIT_0 (NODE))) 1255 1256 /* True if this identifier is the name of a destructor. Value 3. */ 1257 #define IDENTIFIER_DTOR_P(NODE) \ 1258 (IDENTIFIER_CDTOR_P(NODE) \ 1259 & IDENTIFIER_KIND_BIT_0 (NODE)) 1260 1261 /* True if this identifier is for any operator name (including 1262 conversions). Value 4, 5, 6 or 7. */ 1263 #define IDENTIFIER_ANY_OP_P(NODE) \ 1264 (IDENTIFIER_KIND_BIT_2 (NODE)) 1265 1266 /* True if this identifier is for an overloaded operator. Values 4, 5. */ 1267 #define IDENTIFIER_OVL_OP_P(NODE) \ 1268 (IDENTIFIER_ANY_OP_P (NODE) \ 1269 & (!IDENTIFIER_KIND_BIT_1 (NODE))) 1270 1271 /* True if this identifier is for any assignment. Values 5. */ 1272 #define IDENTIFIER_ASSIGN_OP_P(NODE) \ 1273 (IDENTIFIER_OVL_OP_P (NODE) \ 1274 & IDENTIFIER_KIND_BIT_0 (NODE)) 1275 1276 /* True if this identifier is the name of a type-conversion 1277 operator. Value 7. */ 1278 #define IDENTIFIER_CONV_OP_P(NODE) \ 1279 (IDENTIFIER_ANY_OP_P (NODE) \ 1280 & IDENTIFIER_KIND_BIT_1 (NODE) \ 1281 & (!IDENTIFIER_KIND_BIT_0 (NODE))) 1282 1283 /* True if this identifier is a new or delete operator. */ 1284 #define IDENTIFIER_NEWDEL_OP_P(NODE) \ 1285 (IDENTIFIER_OVL_OP_P (NODE) \ 1286 && IDENTIFIER_OVL_OP_FLAGS (NODE) & OVL_OP_FLAG_ALLOC) 1287 1288 /* True if this identifier is a new operator. */ 1289 #define IDENTIFIER_NEW_OP_P(NODE) \ 1290 (IDENTIFIER_OVL_OP_P (NODE) \ 1291 && (IDENTIFIER_OVL_OP_FLAGS (NODE) \ 1292 & (OVL_OP_FLAG_ALLOC | OVL_OP_FLAG_DELETE)) == OVL_OP_FLAG_ALLOC) 1293 1294 /* Access a C++-specific index for identifier NODE. 1295 Used to optimize operator mappings etc. */ 1296 #define IDENTIFIER_CP_INDEX(NODE) \ 1297 (IDENTIFIER_NODE_CHECK(NODE)->base.u.bits.address_space) 1298 1299 /* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */ 1300 #define C_TYPE_FIELDS_READONLY(TYPE) \ 1301 (LANG_TYPE_CLASS_CHECK (TYPE)->fields_readonly) 1302 1303 /* The tokens stored in the unparsed operand. */ 1304 1305 #define DEFPARSE_TOKENS(NODE) \ 1306 (((struct tree_deferred_parse *)DEFERRED_PARSE_CHECK (NODE))->tokens) 1307 #define DEFPARSE_INSTANTIATIONS(NODE) \ 1308 (((struct tree_deferred_parse *)DEFERRED_PARSE_CHECK (NODE))->instantiations) 1309 1310 struct GTY (()) tree_deferred_parse { 1311 struct tree_base base; 1312 struct cp_token_cache *tokens; 1313 vec<tree, va_gc> *instantiations; 1314 }; 1315 1316 1317 #define DEFERRED_NOEXCEPT_PATTERN(NODE) \ 1318 (((struct tree_deferred_noexcept *)DEFERRED_NOEXCEPT_CHECK (NODE))->pattern) 1319 #define DEFERRED_NOEXCEPT_ARGS(NODE) \ 1320 (((struct tree_deferred_noexcept *)DEFERRED_NOEXCEPT_CHECK (NODE))->args) 1321 #define DEFERRED_NOEXCEPT_SPEC_P(NODE) \ 1322 ((NODE) && (TREE_PURPOSE (NODE)) \ 1323 && (TREE_CODE (TREE_PURPOSE (NODE)) == DEFERRED_NOEXCEPT)) 1324 #define UNEVALUATED_NOEXCEPT_SPEC_P(NODE) \ 1325 (DEFERRED_NOEXCEPT_SPEC_P (NODE) \ 1326 && DEFERRED_NOEXCEPT_PATTERN (TREE_PURPOSE (NODE)) == NULL_TREE) 1327 #define UNPARSED_NOEXCEPT_SPEC_P(NODE) \ 1328 ((NODE) && (TREE_PURPOSE (NODE)) \ 1329 && (TREE_CODE (TREE_PURPOSE (NODE)) == DEFERRED_PARSE)) 1330 1331 struct GTY (()) tree_deferred_noexcept { 1332 struct tree_base base; 1333 tree pattern; 1334 tree args; 1335 }; 1336 1337 1338 /* The condition associated with the static assertion. This must be 1339 an integral constant expression. */ 1340 #define STATIC_ASSERT_CONDITION(NODE) \ 1341 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->condition) 1342 1343 /* The message associated with the static assertion. This must be a 1344 string constant, which will be emitted as an error message when the 1345 static assert condition is false. */ 1346 #define STATIC_ASSERT_MESSAGE(NODE) \ 1347 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->message) 1348 1349 /* Source location information for a static assertion. */ 1350 #define STATIC_ASSERT_SOURCE_LOCATION(NODE) \ 1351 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->location) 1352 1353 struct GTY (()) tree_static_assert { 1354 struct tree_common common; 1355 tree condition; 1356 tree message; 1357 location_t location; 1358 }; 1359 1360 struct GTY (()) tree_argument_pack_select { 1361 struct tree_common common; 1362 tree argument_pack; 1363 int index; 1364 }; 1365 1366 /* The different kinds of traits that we encounter. */ 1367 1368 enum cp_trait_kind 1369 { 1370 CPTK_BASES, 1371 CPTK_DIRECT_BASES, 1372 CPTK_HAS_NOTHROW_ASSIGN, 1373 CPTK_HAS_NOTHROW_CONSTRUCTOR, 1374 CPTK_HAS_NOTHROW_COPY, 1375 CPTK_HAS_TRIVIAL_ASSIGN, 1376 CPTK_HAS_TRIVIAL_CONSTRUCTOR, 1377 CPTK_HAS_TRIVIAL_COPY, 1378 CPTK_HAS_TRIVIAL_DESTRUCTOR, 1379 CPTK_HAS_UNIQUE_OBJ_REPRESENTATIONS, 1380 CPTK_HAS_VIRTUAL_DESTRUCTOR, 1381 CPTK_IS_ABSTRACT, 1382 CPTK_IS_AGGREGATE, 1383 CPTK_IS_BASE_OF, 1384 CPTK_IS_CLASS, 1385 CPTK_IS_EMPTY, 1386 CPTK_IS_ENUM, 1387 CPTK_IS_FINAL, 1388 CPTK_IS_LAYOUT_COMPATIBLE, 1389 CPTK_IS_LITERAL_TYPE, 1390 CPTK_IS_POINTER_INTERCONVERTIBLE_BASE_OF, 1391 CPTK_IS_POD, 1392 CPTK_IS_POLYMORPHIC, 1393 CPTK_IS_SAME_AS, 1394 CPTK_IS_STD_LAYOUT, 1395 CPTK_IS_TRIVIAL, 1396 CPTK_IS_TRIVIALLY_ASSIGNABLE, 1397 CPTK_IS_TRIVIALLY_CONSTRUCTIBLE, 1398 CPTK_IS_TRIVIALLY_COPYABLE, 1399 CPTK_IS_UNION, 1400 CPTK_UNDERLYING_TYPE, 1401 CPTK_IS_ASSIGNABLE, 1402 CPTK_IS_CONSTRUCTIBLE, 1403 CPTK_IS_NOTHROW_ASSIGNABLE, 1404 CPTK_IS_NOTHROW_CONSTRUCTIBLE 1405 }; 1406 1407 /* The types that we are processing. */ 1408 #define TRAIT_EXPR_TYPE1(NODE) \ 1409 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type1) 1410 1411 #define TRAIT_EXPR_TYPE2(NODE) \ 1412 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type2) 1413 1414 /* The specific trait that we are processing. */ 1415 #define TRAIT_EXPR_KIND(NODE) \ 1416 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->kind) 1417 1418 #define TRAIT_EXPR_LOCATION(NODE) \ 1419 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->locus) 1420 1421 struct GTY (()) tree_trait_expr { 1422 struct tree_common common; 1423 tree type1; 1424 tree type2; 1425 location_t locus; 1426 enum cp_trait_kind kind; 1427 }; 1428 1429 /* Identifiers used for lambda types are almost anonymous. Use this 1430 spare flag to distinguish them (they also have the anonymous flag). */ 1431 #define IDENTIFIER_LAMBDA_P(NODE) \ 1432 (IDENTIFIER_NODE_CHECK(NODE)->base.protected_flag) 1433 1434 /* Based off of TYPE_UNNAMED_P. */ 1435 #define LAMBDA_TYPE_P(NODE) \ 1436 (TREE_CODE (NODE) == RECORD_TYPE \ 1437 && TYPE_LINKAGE_IDENTIFIER (NODE) \ 1438 && IDENTIFIER_LAMBDA_P (TYPE_LINKAGE_IDENTIFIER (NODE))) 1439 1440 /* Test if FUNCTION_DECL is a lambda function. */ 1441 #define LAMBDA_FUNCTION_P(FNDECL) \ 1442 (DECL_DECLARES_FUNCTION_P (FNDECL) \ 1443 && DECL_OVERLOADED_OPERATOR_P (FNDECL) \ 1444 && DECL_OVERLOADED_OPERATOR_IS (FNDECL, CALL_EXPR) \ 1445 && LAMBDA_TYPE_P (CP_DECL_CONTEXT (FNDECL))) 1446 1447 enum cp_lambda_default_capture_mode_type { 1448 CPLD_NONE, 1449 CPLD_COPY, 1450 CPLD_REFERENCE 1451 }; 1452 1453 /* The method of default capture, if any. */ 1454 #define LAMBDA_EXPR_DEFAULT_CAPTURE_MODE(NODE) \ 1455 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->default_capture_mode) 1456 1457 /* The capture-list, including `this'. Each capture is stored as a FIELD_DECL 1458 * so that the name, type, and field are all together, whether or not it has 1459 * been added to the lambda's class type. 1460 TREE_LIST: 1461 TREE_PURPOSE: The FIELD_DECL for this capture. 1462 TREE_VALUE: The initializer. This is part of a GNU extension. */ 1463 #define LAMBDA_EXPR_CAPTURE_LIST(NODE) \ 1464 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->capture_list) 1465 1466 /* During parsing of the lambda-introducer, the node in the capture-list 1467 that holds the 'this' capture. During parsing of the body, the 1468 capture proxy for that node. */ 1469 #define LAMBDA_EXPR_THIS_CAPTURE(NODE) \ 1470 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->this_capture) 1471 1472 /* Predicate tracking whether `this' is in the effective capture set. */ 1473 #define LAMBDA_EXPR_CAPTURES_THIS_P(NODE) \ 1474 LAMBDA_EXPR_THIS_CAPTURE(NODE) 1475 1476 /* Predicate tracking whether the lambda was declared 'mutable'. */ 1477 #define LAMBDA_EXPR_MUTABLE_P(NODE) \ 1478 TREE_LANG_FLAG_1 (LAMBDA_EXPR_CHECK (NODE)) 1479 1480 /* True iff uses of a const variable capture were optimized away. */ 1481 #define LAMBDA_EXPR_CAPTURE_OPTIMIZED(NODE) \ 1482 TREE_LANG_FLAG_2 (LAMBDA_EXPR_CHECK (NODE)) 1483 1484 /* True if this TREE_LIST in LAMBDA_EXPR_CAPTURE_LIST is for an explicit 1485 capture. */ 1486 #define LAMBDA_CAPTURE_EXPLICIT_P(NODE) \ 1487 TREE_LANG_FLAG_0 (TREE_LIST_CHECK (NODE)) 1488 1489 /* The source location of the lambda. */ 1490 #define LAMBDA_EXPR_LOCATION(NODE) \ 1491 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->locus) 1492 1493 /* The mangling scope for the lambda: FUNCTION_DECL, PARM_DECL, VAR_DECL, 1494 FIELD_DECL or NULL_TREE. If this is NULL_TREE, we have no linkage. */ 1495 #define LAMBDA_EXPR_EXTRA_SCOPE(NODE) \ 1496 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->extra_scope) 1497 1498 /* If EXTRA_SCOPE, this is the number of the lambda within that scope. */ 1499 #define LAMBDA_EXPR_DISCRIMINATOR(NODE) \ 1500 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->discriminator) 1501 1502 /* During parsing of the lambda, a vector of capture proxies which need 1503 to be pushed once we're done processing a nested lambda. */ 1504 #define LAMBDA_EXPR_PENDING_PROXIES(NODE) \ 1505 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->pending_proxies) 1506 1507 /* If NODE was regenerated via tsubst_lambda_expr, this is a TEMPLATE_INFO 1508 whose TI_TEMPLATE is the immediate LAMBDA_EXPR from which NODE was 1509 regenerated, and TI_ARGS is the full set of template arguments used 1510 to regenerate NODE from the most general lambda. */ 1511 #define LAMBDA_EXPR_REGEN_INFO(NODE) \ 1512 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->regen_info) 1513 1514 /* The closure type of the lambda, which is also the type of the 1515 LAMBDA_EXPR. */ 1516 #define LAMBDA_EXPR_CLOSURE(NODE) \ 1517 (TREE_TYPE (LAMBDA_EXPR_CHECK (NODE))) 1518 1519 struct GTY (()) tree_lambda_expr 1520 { 1521 struct tree_typed typed; 1522 tree capture_list; 1523 tree this_capture; 1524 tree extra_scope; 1525 tree regen_info; 1526 vec<tree, va_gc> *pending_proxies; 1527 location_t locus; 1528 enum cp_lambda_default_capture_mode_type default_capture_mode : 8; 1529 short int discriminator; 1530 }; 1531 1532 /* Non-zero if this template specialization has access violations that 1533 should be rechecked when the function is instantiated outside argument 1534 deduction. */ 1535 #define TINFO_HAS_ACCESS_ERRORS(NODE) \ 1536 (TREE_LANG_FLAG_0 (TEMPLATE_INFO_CHECK (NODE))) 1537 #define FNDECL_HAS_ACCESS_ERRORS(NODE) \ 1538 (TINFO_HAS_ACCESS_ERRORS (DECL_TEMPLATE_INFO (NODE))) 1539 1540 /* Non-zero if this variable template specialization was specified using a 1541 template-id, so it's a partial or full specialization and not a definition 1542 of the member template of a particular class specialization. */ 1543 #define TINFO_USED_TEMPLATE_ID(NODE) \ 1544 (TREE_LANG_FLAG_1 (TEMPLATE_INFO_CHECK (NODE))) 1545 1546 /* The representation of a deferred access check. */ 1547 1548 struct GTY(()) deferred_access_check { 1549 /* The base class in which the declaration is referenced. */ 1550 tree binfo; 1551 /* The declaration whose access must be checked. */ 1552 tree decl; 1553 /* The declaration that should be used in the error message. */ 1554 tree diag_decl; 1555 /* The location of this access. */ 1556 location_t loc; 1557 }; 1558 1559 struct GTY(()) tree_template_info { 1560 struct tree_base base; 1561 tree tmpl; 1562 tree args; 1563 vec<deferred_access_check, va_gc> *deferred_access_checks; 1564 }; 1565 1566 // Constraint information for a C++ declaration. Constraint information is 1567 // comprised of: 1568 // 1569 // - a constraint expression introduced by the template header 1570 // - a constraint expression introduced by a function declarator 1571 // - the associated constraints, which are the conjunction of those, 1572 // and used for declaration matching 1573 // 1574 // The template and declarator requirements are kept to support pretty 1575 // printing constrained declarations. 1576 struct GTY(()) tree_constraint_info { 1577 struct tree_base base; 1578 tree template_reqs; 1579 tree declarator_reqs; 1580 tree associated_constr; 1581 }; 1582 1583 // Require that pointer P is non-null before returning. 1584 template<typename T> 1585 inline T* 1586 check_nonnull (T* p) 1587 { 1588 gcc_assert (p); 1589 return p; 1590 } 1591 1592 /* Returns true iff T is non-null and represents constraint info. */ 1593 inline tree_constraint_info * 1594 check_constraint_info (tree t) 1595 { 1596 if (t && TREE_CODE (t) == CONSTRAINT_INFO) 1597 return (tree_constraint_info *)t; 1598 return NULL; 1599 } 1600 1601 /* Access the expression describing the template constraints. This may be 1602 null if no constraints were introduced in the template parameter list, 1603 a requirements clause after the template parameter list, or constraints 1604 through a constrained-type-specifier. */ 1605 #define CI_TEMPLATE_REQS(NODE) \ 1606 check_constraint_info (check_nonnull (NODE))->template_reqs 1607 1608 /* Access the expression describing the trailing constraints. This is non-null 1609 for any implicit instantiation of a constrained declaration. For a 1610 templated declaration it is non-null only when a trailing requires-clause 1611 was specified. */ 1612 #define CI_DECLARATOR_REQS(NODE) \ 1613 check_constraint_info (check_nonnull (NODE))->declarator_reqs 1614 1615 /* The computed associated constraint expression for a declaration. */ 1616 #define CI_ASSOCIATED_CONSTRAINTS(NODE) \ 1617 check_constraint_info (check_nonnull (NODE))->associated_constr 1618 1619 /* Access the constraint-expression introduced by the requires-clause 1620 associate the template parameter list NODE. */ 1621 #define TEMPLATE_PARMS_CONSTRAINTS(NODE) \ 1622 TREE_TYPE (TREE_LIST_CHECK (NODE)) 1623 1624 /* Access the logical constraints on the template parameter declaration 1625 indicated by NODE. */ 1626 #define TEMPLATE_PARM_CONSTRAINTS(NODE) \ 1627 TREE_TYPE (TREE_LIST_CHECK (NODE)) 1628 1629 /* Non-zero if the noexcept is present in a compound requirement. */ 1630 #define COMPOUND_REQ_NOEXCEPT_P(NODE) \ 1631 TREE_LANG_FLAG_0 (TREE_CHECK (NODE, COMPOUND_REQ)) 1632 1633 /* A TREE_LIST whose TREE_VALUE is the constraints on the 'auto' placeholder 1634 type NODE, used in an argument deduction constraint. The TREE_PURPOSE 1635 holds the set of template parameters that were in-scope when this 'auto' 1636 was formed. */ 1637 #define PLACEHOLDER_TYPE_CONSTRAINTS_INFO(NODE) \ 1638 DECL_SIZE_UNIT (TYPE_NAME (NODE)) 1639 1640 /* The constraints on the 'auto' placeholder type NODE. */ 1641 #define PLACEHOLDER_TYPE_CONSTRAINTS(NODE) \ 1642 (PLACEHOLDER_TYPE_CONSTRAINTS_INFO (NODE) \ 1643 ? TREE_VALUE (PLACEHOLDER_TYPE_CONSTRAINTS_INFO (NODE)) \ 1644 : NULL_TREE) 1645 1646 /* True if NODE is a constraint. */ 1647 #define CONSTR_P(NODE) \ 1648 (TREE_CODE (NODE) == ATOMIC_CONSTR \ 1649 || TREE_CODE (NODE) == CONJ_CONSTR \ 1650 || TREE_CODE (NODE) == DISJ_CONSTR) 1651 1652 /* Valid for any normalized constraint. */ 1653 #define CONSTR_CHECK(NODE) \ 1654 TREE_CHECK3 (NODE, ATOMIC_CONSTR, CONJ_CONSTR, DISJ_CONSTR) 1655 1656 /* The CONSTR_INFO stores normalization data for a constraint. It refers to 1657 the original expression and the expression or declaration 1658 from which the constraint was normalized. 1659 1660 This is TREE_LIST whose TREE_PURPOSE is the original expression and whose 1661 TREE_VALUE is a list of contexts. */ 1662 #define CONSTR_INFO(NODE) \ 1663 TREE_TYPE (CONSTR_CHECK (NODE)) 1664 1665 /* The expression evaluated by the constraint. */ 1666 #define CONSTR_EXPR(NODE) \ 1667 TREE_PURPOSE (CONSTR_INFO (NODE)) 1668 1669 /* The expression or declaration from which this constraint was normalized. 1670 This is a TREE_LIST whose TREE_VALUE is either a template-id expression 1671 denoting a concept check or the declaration introducing the constraint. 1672 These are chained to other context objects. */ 1673 #define CONSTR_CONTEXT(NODE) \ 1674 TREE_VALUE (CONSTR_INFO (NODE)) 1675 1676 /* The parameter mapping for an atomic constraint. */ 1677 #define ATOMIC_CONSTR_MAP(NODE) \ 1678 TREE_OPERAND (TREE_CHECK (NODE, ATOMIC_CONSTR), 0) 1679 1680 /* Whether the parameter mapping of this atomic constraint 1681 is already instantiated with concrete template arguments. 1682 Used only in satisfy_atom and in the satisfaction cache. */ 1683 #define ATOMIC_CONSTR_MAP_INSTANTIATED_P(NODE) \ 1684 TREE_LANG_FLAG_0 (ATOMIC_CONSTR_CHECK (NODE)) 1685 1686 /* Whether the expression for this atomic constraint belongs to a 1687 concept definition. */ 1688 #define ATOMIC_CONSTR_EXPR_FROM_CONCEPT_P(NODE) \ 1689 TREE_LANG_FLAG_1 (ATOMIC_CONSTR_CHECK (NODE)) 1690 1691 /* The expression of an atomic constraint. */ 1692 #define ATOMIC_CONSTR_EXPR(NODE) \ 1693 CONSTR_EXPR (ATOMIC_CONSTR_CHECK (NODE)) 1694 1695 /* The concept of a concept check. */ 1696 #define CHECK_CONSTR_CONCEPT(NODE) \ 1697 TREE_OPERAND (TREE_CHECK (NODE, CHECK_CONSTR), 0) 1698 1699 /* The template arguments of a concept check. */ 1700 #define CHECK_CONSTR_ARGS(NODE) \ 1701 TREE_OPERAND (TREE_CHECK (NODE, CHECK_CONSTR), 1) 1702 1703 /* Whether a PARM_DECL represents a local parameter in a 1704 requires-expression. */ 1705 #define CONSTRAINT_VAR_P(NODE) \ 1706 DECL_LANG_FLAG_2 (TREE_CHECK (NODE, PARM_DECL)) 1707 1708 /* The concept constraining this constrained template-parameter. */ 1709 #define CONSTRAINED_PARM_CONCEPT(NODE) \ 1710 DECL_SIZE_UNIT (TYPE_DECL_CHECK (NODE)) 1711 /* Any extra template arguments specified for a constrained 1712 template-parameter. */ 1713 #define CONSTRAINED_PARM_EXTRA_ARGS(NODE) \ 1714 DECL_SIZE (TYPE_DECL_CHECK (NODE)) 1715 /* The first template parameter of CONSTRAINED_PARM_CONCEPT to be used as a 1716 prototype for the constrained parameter in finish_shorthand_constraint, 1717 attached for convenience. */ 1718 #define CONSTRAINED_PARM_PROTOTYPE(NODE) \ 1719 DECL_INITIAL (TYPE_DECL_CHECK (NODE)) 1720 1721 /* Module flags on FUNCTION,VAR,TYPE,CONCEPT or NAMESPACE 1722 A TEMPLATE_DECL holds them on the DECL_TEMPLATE_RESULT object -- 1723 it's just not practical to keep them consistent. */ 1724 #define DECL_MODULE_CHECK(NODE) \ 1725 TREE_NOT_CHECK (NODE, TEMPLATE_DECL) 1726 1727 /* In the purview of a module (including header unit). */ 1728 #define DECL_MODULE_PURVIEW_P(N) \ 1729 (DECL_LANG_SPECIFIC (DECL_MODULE_CHECK (N))->u.base.module_purview_p) 1730 1731 /* True if the live version of the decl was imported. */ 1732 #define DECL_MODULE_IMPORT_P(NODE) \ 1733 (DECL_LANG_SPECIFIC (DECL_MODULE_CHECK (NODE))->u.base.module_import_p) 1734 1735 /* True if this decl is in the entity hash & array. This means that 1736 some variant was imported, even if DECL_MODULE_IMPORT_P is false. */ 1737 #define DECL_MODULE_ENTITY_P(NODE) \ 1738 (DECL_LANG_SPECIFIC (DECL_MODULE_CHECK (NODE))->u.base.module_entity_p) 1739 1740 /* DECL that has attached decls for ODR-relatedness. */ 1741 #define DECL_MODULE_ATTACHMENTS_P(NODE) \ 1742 (DECL_LANG_SPECIFIC (TREE_CHECK2(NODE,FUNCTION_DECL,VAR_DECL))\ 1743 ->u.base.module_attached_p) 1744 1745 /* Whether this is an exported DECL. Held on any decl that can appear 1746 at namespace scope (function, var, type, template, const or 1747 namespace). templates copy from their template_result, consts have 1748 it for unscoped enums. */ 1749 #define DECL_MODULE_EXPORT_P(NODE) TREE_LANG_FLAG_3 (NODE) 1750 1751 1752 /* The list of local parameters introduced by this requires-expression, 1754 in the form of a chain of PARM_DECLs. */ 1755 #define REQUIRES_EXPR_PARMS(NODE) \ 1756 TREE_OPERAND (TREE_CHECK (NODE, REQUIRES_EXPR), 0) 1757 1758 /* A TREE_LIST of the requirements for this requires-expression. 1759 The requirements are stored in lexical order within the TREE_VALUE 1760 of each TREE_LIST node. The TREE_PURPOSE of each node is unused. */ 1761 #define REQUIRES_EXPR_REQS(NODE) \ 1762 TREE_OPERAND (TREE_CHECK (NODE, REQUIRES_EXPR), 1) 1763 1764 /* Like PACK_EXPANSION_EXTRA_ARGS, for requires-expressions. */ 1765 #define REQUIRES_EXPR_EXTRA_ARGS(NODE) \ 1766 TREE_OPERAND (TREE_CHECK (NODE, REQUIRES_EXPR), 2) 1767 1768 enum cp_tree_node_structure_enum { 1769 TS_CP_GENERIC, 1770 TS_CP_IDENTIFIER, 1771 TS_CP_TPI, 1772 TS_CP_PTRMEM, 1773 TS_CP_OVERLOAD, 1774 TS_CP_BINDING_VECTOR, 1775 TS_CP_BASELINK, 1776 TS_CP_TEMPLATE_DECL, 1777 TS_CP_DEFERRED_PARSE, 1778 TS_CP_DEFERRED_NOEXCEPT, 1779 TS_CP_STATIC_ASSERT, 1780 TS_CP_ARGUMENT_PACK_SELECT, 1781 TS_CP_TRAIT_EXPR, 1782 TS_CP_LAMBDA_EXPR, 1783 TS_CP_TEMPLATE_INFO, 1784 TS_CP_CONSTRAINT_INFO, 1785 TS_CP_USERDEF_LITERAL 1786 }; 1787 1788 /* The resulting tree type. */ 1789 union GTY((desc ("cp_tree_node_structure (&%h)"), 1790 chain_next ("(union lang_tree_node *) c_tree_chain_next (&%h.generic)"))) lang_tree_node { 1791 union tree_node GTY ((tag ("TS_CP_GENERIC"), 1792 desc ("tree_node_structure (&%h)"))) generic; 1793 struct template_parm_index GTY ((tag ("TS_CP_TPI"))) tpi; 1794 struct ptrmem_cst GTY ((tag ("TS_CP_PTRMEM"))) ptrmem; 1795 struct tree_overload GTY ((tag ("TS_CP_OVERLOAD"))) overload; 1796 struct tree_binding_vec GTY ((tag ("TS_CP_BINDING_VECTOR"))) binding_vec; 1797 struct tree_baselink GTY ((tag ("TS_CP_BASELINK"))) baselink; 1798 struct tree_template_decl GTY ((tag ("TS_CP_TEMPLATE_DECL"))) template_decl; 1799 struct tree_deferred_parse GTY ((tag ("TS_CP_DEFERRED_PARSE"))) deferred_parse; 1800 struct tree_deferred_noexcept GTY ((tag ("TS_CP_DEFERRED_NOEXCEPT"))) deferred_noexcept; 1801 struct lang_identifier GTY ((tag ("TS_CP_IDENTIFIER"))) identifier; 1802 struct tree_static_assert GTY ((tag ("TS_CP_STATIC_ASSERT"))) 1803 static_assertion; 1804 struct tree_argument_pack_select GTY ((tag ("TS_CP_ARGUMENT_PACK_SELECT"))) 1805 argument_pack_select; 1806 struct tree_trait_expr GTY ((tag ("TS_CP_TRAIT_EXPR"))) 1807 trait_expression; 1808 struct tree_lambda_expr GTY ((tag ("TS_CP_LAMBDA_EXPR"))) 1809 lambda_expression; 1810 struct tree_template_info GTY ((tag ("TS_CP_TEMPLATE_INFO"))) 1811 template_info; 1812 struct tree_constraint_info GTY ((tag ("TS_CP_CONSTRAINT_INFO"))) 1813 constraint_info; 1814 struct tree_userdef_literal GTY ((tag ("TS_CP_USERDEF_LITERAL"))) 1815 userdef_literal; 1816 }; 1817 1818 1819 struct GTY(()) omp_declare_target_attr { 1821 bool attr_syntax; 1822 }; 1823 1824 /* Global state. */ 1825 1826 struct GTY(()) saved_scope { 1827 vec<cxx_saved_binding, va_gc> *old_bindings; 1828 tree old_namespace; 1829 vec<tree, va_gc> *decl_ns_list; 1830 tree class_name; 1831 tree class_type; 1832 tree access_specifier; 1833 tree function_decl; 1834 vec<tree, va_gc> *lang_base; 1835 tree lang_name; 1836 tree template_parms; 1837 cp_binding_level *x_previous_class_level; 1838 tree x_saved_tree; 1839 1840 /* Only used for uses of this in trailing return type. */ 1841 tree x_current_class_ptr; 1842 tree x_current_class_ref; 1843 1844 int x_processing_template_decl; 1845 int x_processing_specialization; 1846 int x_processing_constraint; 1847 int suppress_location_wrappers; 1848 BOOL_BITFIELD x_processing_explicit_instantiation : 1; 1849 BOOL_BITFIELD need_pop_function_context : 1; 1850 1851 /* Nonzero if we are parsing the discarded statement of a constexpr 1852 if-statement. */ 1853 BOOL_BITFIELD discarded_stmt : 1; 1854 /* Nonzero if we are parsing or instantiating the compound-statement 1855 of consteval if statement. Also set while processing an immediate 1856 invocation. */ 1857 BOOL_BITFIELD consteval_if_p : 1; 1858 1859 int unevaluated_operand; 1860 int inhibit_evaluation_warnings; 1861 int noexcept_operand; 1862 int ref_temp_count; 1863 1864 struct stmt_tree_s x_stmt_tree; 1865 1866 cp_binding_level *class_bindings; 1867 cp_binding_level *bindings; 1868 1869 hash_map<tree, tree> *GTY((skip)) x_local_specializations; 1870 vec<omp_declare_target_attr, va_gc> *omp_declare_target_attribute; 1871 1872 struct saved_scope *prev; 1873 }; 1874 1875 extern GTY(()) struct saved_scope *scope_chain; 1876 1877 /* The current open namespace. */ 1878 1879 #define current_namespace scope_chain->old_namespace 1880 1881 /* The stack for namespaces of current declarations. */ 1882 1883 #define decl_namespace_list scope_chain->decl_ns_list 1884 1885 /* IDENTIFIER_NODE: name of current class */ 1886 1887 #define current_class_name scope_chain->class_name 1888 1889 /* _TYPE: the type of the current class */ 1890 1891 #define current_class_type scope_chain->class_type 1892 1893 /* When parsing a class definition, the access specifier most recently 1894 given by the user, or, if no access specifier was given, the 1895 default value appropriate for the kind of class (i.e., struct, 1896 class, or union). */ 1897 1898 #define current_access_specifier scope_chain->access_specifier 1899 1900 /* Pointer to the top of the language name stack. */ 1901 1902 #define current_lang_base scope_chain->lang_base 1903 #define current_lang_name scope_chain->lang_name 1904 1905 /* When parsing a template declaration, a TREE_LIST represents the 1906 active template parameters. Each node in the list represents one 1907 level of template parameters. The innermost level is first in the 1908 list. The depth of each level is stored as an INTEGER_CST in the 1909 TREE_PURPOSE of each node. The parameters for that level are 1910 stored in the TREE_VALUE. */ 1911 1912 #define current_template_parms scope_chain->template_parms 1913 #define current_template_depth \ 1914 (current_template_parms ? TMPL_PARMS_DEPTH (current_template_parms) : 0) 1915 1916 #define processing_template_decl scope_chain->x_processing_template_decl 1917 #define processing_specialization scope_chain->x_processing_specialization 1918 #define processing_explicit_instantiation scope_chain->x_processing_explicit_instantiation 1919 1920 #define in_discarded_stmt scope_chain->discarded_stmt 1921 #define in_consteval_if_p scope_chain->consteval_if_p 1922 1923 #define current_ref_temp_count scope_chain->ref_temp_count 1924 1925 /* RAII sentinel to handle clearing processing_template_decl and restoring 1926 it when done. */ 1927 1928 class processing_template_decl_sentinel 1929 { 1930 public: 1931 int saved; 1932 processing_template_decl_sentinel (bool reset = true) 1933 : saved (processing_template_decl) 1934 { 1935 if (reset) 1936 processing_template_decl = 0; 1937 } 1938 ~processing_template_decl_sentinel() 1939 { 1940 processing_template_decl = saved; 1941 } 1942 }; 1943 1944 /* RAII sentinel to disable certain warnings during template substitution 1945 and elsewhere. */ 1946 1947 class warning_sentinel 1948 { 1949 public: 1950 int &flag; 1951 int val; 1952 warning_sentinel(int& flag, bool suppress=true) 1953 : flag(flag), val(flag) { if (suppress) flag = 0; } 1954 ~warning_sentinel() { flag = val; } 1955 }; 1956 1957 /* RAII sentinel to temporarily override input_location. This will not set 1958 input_location to UNKNOWN_LOCATION or BUILTINS_LOCATION. */ 1959 1960 class iloc_sentinel 1961 { 1962 location_t saved_loc; 1963 public: 1964 iloc_sentinel (location_t loc): saved_loc (input_location) 1965 { 1966 if (loc >= RESERVED_LOCATION_COUNT) 1967 input_location = loc; 1968 } 1969 ~iloc_sentinel () 1970 { 1971 input_location = saved_loc; 1972 } 1973 }; 1974 1975 /* RAII sentinel that saves the value of a variable, optionally 1976 overrides it right away, and restores its value when the sentinel 1977 id destructed. */ 1978 1979 template <typename T> 1980 class temp_override 1981 { 1982 T& overridden_variable; 1983 T saved_value; 1984 public: 1985 temp_override(T& var) : overridden_variable (var), saved_value (var) {} 1986 temp_override(T& var, T overrider) 1987 : overridden_variable (var), saved_value (var) 1988 { 1989 overridden_variable = overrider; 1990 } 1991 ~temp_override() { overridden_variable = saved_value; } 1992 }; 1993 1994 /* Wrapping a template parameter in type_identity_t hides it from template 1995 argument deduction. */ 1996 #if __cpp_lib_type_identity 1997 using std::type_identity_t; 1998 #else 1999 template <typename T> 2000 struct type_identity { typedef T type; }; 2001 template <typename T> 2002 using type_identity_t = typename type_identity<T>::type; 2003 #endif 2004 2005 /* Object generator function for temp_override, so you don't need to write the 2006 type of the object as a template argument. 2007 2008 Use as auto x = make_temp_override (flag); */ 2009 2010 template <typename T> 2011 inline temp_override<T> 2012 make_temp_override (T& var) 2013 { 2014 return { var }; 2015 } 2016 2017 /* Likewise, but use as auto x = make_temp_override (flag, value); */ 2018 2019 template <typename T> 2020 inline temp_override<T> 2021 make_temp_override (T& var, type_identity_t<T> overrider) 2022 { 2023 return { var, overrider }; 2024 } 2025 2026 /* The cached class binding level, from the most recently exited 2027 class, or NULL if none. */ 2028 2029 #define previous_class_level scope_chain->x_previous_class_level 2030 2031 /* A map from local variable declarations in the body of the template 2032 presently being instantiated to the corresponding instantiated 2033 local variables. */ 2034 2035 #define local_specializations scope_chain->x_local_specializations 2036 2037 /* Nonzero if we are parsing the operand of a noexcept operator. */ 2038 2039 #define cp_noexcept_operand scope_chain->noexcept_operand 2040 2041 struct named_label_entry; /* Defined in decl.cc. */ 2042 2043 struct named_label_hash : ggc_remove <named_label_entry *> 2044 { 2045 typedef named_label_entry *value_type; 2046 typedef tree compare_type; /* An identifier. */ 2047 2048 inline static hashval_t hash (value_type); 2049 inline static bool equal (const value_type, compare_type); 2050 2051 static const bool empty_zero_p = true; 2052 inline static void mark_empty (value_type &p) {p = NULL;} 2053 inline static bool is_empty (value_type p) {return !p;} 2054 2055 /* Nothing is deletable. Everything is insertable. */ 2056 inline static bool is_deleted (value_type) { return false; } 2057 inline static void mark_deleted (value_type) { gcc_unreachable (); } 2058 }; 2059 2060 /* Global state pertinent to the current function. */ 2061 2062 struct GTY(()) language_function { 2063 struct c_language_function base; 2064 2065 tree x_cdtor_label; 2066 tree x_current_class_ptr; 2067 tree x_current_class_ref; 2068 tree x_eh_spec_block; 2069 tree x_in_charge_parm; 2070 tree x_vtt_parm; 2071 tree x_return_value; 2072 2073 BOOL_BITFIELD returns_value : 1; 2074 BOOL_BITFIELD returns_null : 1; 2075 BOOL_BITFIELD returns_abnormally : 1; 2076 BOOL_BITFIELD infinite_loop: 1; 2077 BOOL_BITFIELD x_in_function_try_handler : 1; 2078 BOOL_BITFIELD x_in_base_initializer : 1; 2079 2080 /* True if this function can throw an exception. */ 2081 BOOL_BITFIELD can_throw : 1; 2082 2083 BOOL_BITFIELD invalid_constexpr : 1; 2084 BOOL_BITFIELD throwing_cleanup : 1; 2085 BOOL_BITFIELD backward_goto : 1; 2086 2087 hash_table<named_label_hash> *x_named_labels; 2088 2089 cp_binding_level *bindings; 2090 2091 /* Tracking possibly infinite loops. This is a vec<tree> only because 2092 vec<bool> doesn't work with gtype. */ 2093 vec<tree, va_gc> *infinite_loops; 2094 }; 2095 2096 /* The current C++-specific per-function global variables. */ 2097 2098 #define cp_function_chain (cfun->language) 2099 2100 /* In a constructor destructor, the point at which all derived class 2101 destroying/construction has been done. I.e., just before a 2102 constructor returns, or before any base class destroying will be done 2103 in a destructor. */ 2104 2105 #define cdtor_label cp_function_chain->x_cdtor_label 2106 2107 /* When we're processing a member function, current_class_ptr is the 2108 PARM_DECL for the `this' pointer. The current_class_ref is an 2109 expression for `*this'. */ 2110 2111 #define current_class_ptr \ 2112 (*(cfun && cp_function_chain \ 2113 ? &cp_function_chain->x_current_class_ptr \ 2114 : &scope_chain->x_current_class_ptr)) 2115 #define current_class_ref \ 2116 (*(cfun && cp_function_chain \ 2117 ? &cp_function_chain->x_current_class_ref \ 2118 : &scope_chain->x_current_class_ref)) 2119 2120 /* The EH_SPEC_BLOCK for the exception-specifiers for the current 2121 function, if any. */ 2122 2123 #define current_eh_spec_block cp_function_chain->x_eh_spec_block 2124 2125 /* The `__in_chrg' parameter for the current function. Only used for 2126 constructors and destructors. */ 2127 2128 #define current_in_charge_parm cp_function_chain->x_in_charge_parm 2129 2130 /* The `__vtt_parm' parameter for the current function. Only used for 2131 constructors and destructors. */ 2132 2133 #define current_vtt_parm cp_function_chain->x_vtt_parm 2134 2135 /* A boolean flag to control whether we need to clean up the return value if a 2136 local destructor throws. Only used in functions that return by value a 2137 class with a destructor. Which 'tors don't, so we can use the same 2138 field as current_vtt_parm. */ 2139 2140 #define current_retval_sentinel current_vtt_parm 2141 2142 /* Set to 0 at beginning of a function definition, set to 1 if 2143 a return statement that specifies a return value is seen. */ 2144 2145 #define current_function_returns_value cp_function_chain->returns_value 2146 2147 /* Set to 0 at beginning of a function definition, set to 1 if 2148 a return statement with no argument is seen. */ 2149 2150 #define current_function_returns_null cp_function_chain->returns_null 2151 2152 /* Set to 0 at beginning of a function definition, set to 1 if 2153 a call to a noreturn function is seen. */ 2154 2155 #define current_function_returns_abnormally \ 2156 cp_function_chain->returns_abnormally 2157 2158 /* Set to 0 at beginning of a function definition, set to 1 if we see an 2159 obvious infinite loop. This can have false positives and false 2160 negatives, so it should only be used as a heuristic. */ 2161 2162 #define current_function_infinite_loop cp_function_chain->infinite_loop 2163 2164 /* Nonzero if we are processing a base initializer. Zero elsewhere. */ 2165 #define in_base_initializer cp_function_chain->x_in_base_initializer 2166 2167 #define in_function_try_handler cp_function_chain->x_in_function_try_handler 2168 2169 /* Expression always returned from function, or error_mark_node 2170 otherwise, for use by the automatic named return value optimization. */ 2171 2172 #define current_function_return_value \ 2173 (cp_function_chain->x_return_value) 2174 2175 /* In parser.cc. */ 2176 extern tree cp_literal_operator_id (const char *); 2177 2178 #define NON_ERROR(NODE) ((NODE) == error_mark_node ? NULL_TREE : (NODE)) 2179 2180 /* TRUE if a tree code represents a statement. */ 2181 extern bool statement_code_p[MAX_TREE_CODES]; 2182 2183 #define STATEMENT_CODE_P(CODE) statement_code_p[(int) (CODE)] 2184 2185 enum languages { lang_c, lang_cplusplus }; 2186 2187 /* Macros to make error reporting functions' lives easier. */ 2188 #define TYPE_LINKAGE_IDENTIFIER(NODE) \ 2189 (TYPE_IDENTIFIER (TYPE_MAIN_VARIANT (NODE))) 2190 #define TYPE_NAME_STRING(NODE) (IDENTIFIER_POINTER (TYPE_IDENTIFIER (NODE))) 2191 #define TYPE_NAME_LENGTH(NODE) (IDENTIFIER_LENGTH (TYPE_IDENTIFIER (NODE))) 2192 2193 /* Any kind of anonymous type. */ 2194 #define TYPE_ANON_P(NODE) \ 2195 (TYPE_LINKAGE_IDENTIFIER (NODE) \ 2196 && IDENTIFIER_ANON_P (TYPE_LINKAGE_IDENTIFIER (NODE))) 2197 2198 /* Nonzero if NODE, a TYPE, has no name for linkage purposes. */ 2199 #define TYPE_UNNAMED_P(NODE) \ 2200 (TYPE_ANON_P (NODE) \ 2201 && !IDENTIFIER_LAMBDA_P (TYPE_LINKAGE_IDENTIFIER (NODE))) 2202 2203 /* The _DECL for this _TYPE. */ 2204 #define TYPE_MAIN_DECL(NODE) (TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE))) 2205 2206 /* Nonzero if T is a type that could resolve to any kind of concrete type 2207 at instantiation time. */ 2208 #define WILDCARD_TYPE_P(T) \ 2209 (TREE_CODE (T) == TEMPLATE_TYPE_PARM \ 2210 || TREE_CODE (T) == TYPENAME_TYPE \ 2211 || TREE_CODE (T) == TYPEOF_TYPE \ 2212 || TREE_CODE (T) == BOUND_TEMPLATE_TEMPLATE_PARM \ 2213 || TREE_CODE (T) == DECLTYPE_TYPE \ 2214 || TREE_CODE (T) == DEPENDENT_OPERATOR_TYPE) 2215 2216 /* Nonzero if T is a class (or struct or union) type. Also nonzero 2217 for template type parameters, typename types, and instantiated 2218 template template parameters. Keep these checks in ascending code 2219 order. */ 2220 #define MAYBE_CLASS_TYPE_P(T) (WILDCARD_TYPE_P (T) || CLASS_TYPE_P (T)) 2221 2222 /* Set CLASS_TYPE_P for T to VAL. T must be a class, struct, or 2223 union type. */ 2224 #define SET_CLASS_TYPE_P(T, VAL) \ 2225 (TYPE_LANG_FLAG_5 (RECORD_OR_UNION_CHECK (T)) = (VAL)) 2226 2227 /* Nonzero if T is a class type. Zero for template type parameters, 2228 typename types, and so forth. */ 2229 #define CLASS_TYPE_P(T) \ 2230 (RECORD_OR_UNION_CODE_P (TREE_CODE (T)) && TYPE_LANG_FLAG_5 (T)) 2231 2232 /* Nonzero if T is a class type but not a union. */ 2233 #define NON_UNION_CLASS_TYPE_P(T) \ 2234 (TREE_CODE (T) == RECORD_TYPE && TYPE_LANG_FLAG_5 (T)) 2235 2236 /* Keep these checks in ascending code order. */ 2237 #define RECORD_OR_UNION_CODE_P(T) \ 2238 ((T) == RECORD_TYPE || (T) == UNION_TYPE) 2239 #define OVERLOAD_TYPE_P(T) \ 2240 (CLASS_TYPE_P (T) || TREE_CODE (T) == ENUMERAL_TYPE) 2241 2242 /* True if this type is dependent. This predicate is only valid if 2243 TYPE_DEPENDENT_P_VALID is true. */ 2244 #define TYPE_DEPENDENT_P(NODE) TYPE_LANG_FLAG_0 (NODE) 2245 2246 /* True if dependent_type_p has been called for this type, with the 2247 result that TYPE_DEPENDENT_P is valid. */ 2248 #define TYPE_DEPENDENT_P_VALID(NODE) TYPE_LANG_FLAG_6(NODE) 2249 2250 /* Nonzero if this type is const-qualified. */ 2251 #define CP_TYPE_CONST_P(NODE) \ 2252 ((cp_type_quals (NODE) & TYPE_QUAL_CONST) != 0) 2253 2254 /* Nonzero if this type is volatile-qualified. */ 2255 #define CP_TYPE_VOLATILE_P(NODE) \ 2256 ((cp_type_quals (NODE) & TYPE_QUAL_VOLATILE) != 0) 2257 2258 /* Nonzero if this type is restrict-qualified. */ 2259 #define CP_TYPE_RESTRICT_P(NODE) \ 2260 ((cp_type_quals (NODE) & TYPE_QUAL_RESTRICT) != 0) 2261 2262 /* Nonzero if this type is const-qualified, but not 2263 volatile-qualified. Other qualifiers are ignored. This macro is 2264 used to test whether or not it is OK to bind an rvalue to a 2265 reference. */ 2266 #define CP_TYPE_CONST_NON_VOLATILE_P(NODE) \ 2267 ((cp_type_quals (NODE) & (TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE)) \ 2268 == TYPE_QUAL_CONST) 2269 2270 #define FUNCTION_ARG_CHAIN(NODE) \ 2271 TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (NODE))) 2272 2273 /* Given a FUNCTION_DECL, returns the first TREE_LIST out of TYPE_ARG_TYPES 2274 which refers to a user-written parameter. */ 2275 #define FUNCTION_FIRST_USER_PARMTYPE(NODE) \ 2276 skip_artificial_parms_for ((NODE), TYPE_ARG_TYPES (TREE_TYPE (NODE))) 2277 2278 /* Similarly, but for DECL_ARGUMENTS. */ 2279 #define FUNCTION_FIRST_USER_PARM(NODE) \ 2280 skip_artificial_parms_for ((NODE), DECL_ARGUMENTS (NODE)) 2281 2282 /* Nonzero iff TYPE is derived from PARENT. Ignores accessibility and 2283 ambiguity issues. */ 2284 #define DERIVED_FROM_P(PARENT, TYPE) \ 2285 (lookup_base ((TYPE), (PARENT), ba_any, NULL, tf_none) != NULL_TREE) 2286 2287 /* Gives the visibility specification for a class type. */ 2288 #define CLASSTYPE_VISIBILITY(TYPE) \ 2289 DECL_VISIBILITY (TYPE_MAIN_DECL (TYPE)) 2290 #define CLASSTYPE_VISIBILITY_SPECIFIED(TYPE) \ 2291 DECL_VISIBILITY_SPECIFIED (TYPE_MAIN_DECL (TYPE)) 2292 2293 struct GTY (()) tree_pair_s { 2294 tree purpose; 2295 tree value; 2296 }; 2297 typedef tree_pair_s *tree_pair_p; 2298 2299 /* This structure provides additional information above and beyond 2300 what is provide in the ordinary tree_type. In the past, we used it 2301 for the types of class types, template parameters types, typename 2302 types, and so forth. However, there can be many (tens to hundreds 2303 of thousands) of template parameter types in a compilation, and 2304 there's no need for this additional information in that case. 2305 Therefore, we now use this data structure only for class types. 2306 2307 In the past, it was thought that there would be relatively few 2308 class types. However, in the presence of heavy use of templates, 2309 many (i.e., thousands) of classes can easily be generated. 2310 Therefore, we should endeavor to keep the size of this structure to 2311 a minimum. */ 2312 struct GTY(()) lang_type { 2313 unsigned char align; 2314 2315 unsigned has_type_conversion : 1; 2316 unsigned has_copy_ctor : 1; 2317 unsigned has_default_ctor : 1; 2318 unsigned const_needs_init : 1; 2319 unsigned ref_needs_init : 1; 2320 unsigned has_const_copy_assign : 1; 2321 unsigned use_template : 2; 2322 2323 unsigned has_mutable : 1; 2324 unsigned com_interface : 1; 2325 unsigned non_pod_class : 1; 2326 unsigned nearly_empty_p : 1; 2327 unsigned user_align : 1; 2328 unsigned has_copy_assign : 1; 2329 unsigned has_new : 1; 2330 unsigned has_array_new : 1; 2331 2332 unsigned gets_delete : 2; 2333 unsigned interface_only : 1; 2334 unsigned interface_unknown : 1; 2335 unsigned contains_empty_class_p : 1; 2336 unsigned anon_aggr : 1; 2337 unsigned non_zero_init : 1; 2338 unsigned empty_p : 1; 2339 /* 32 bits allocated. */ 2340 2341 unsigned vec_new_uses_cookie : 1; 2342 unsigned declared_class : 1; 2343 unsigned diamond_shaped : 1; 2344 unsigned repeated_base : 1; 2345 unsigned being_defined : 1; 2346 unsigned debug_requested : 1; 2347 unsigned fields_readonly : 1; 2348 unsigned ptrmemfunc_flag : 1; 2349 2350 unsigned lazy_default_ctor : 1; 2351 unsigned lazy_copy_ctor : 1; 2352 unsigned lazy_copy_assign : 1; 2353 unsigned lazy_destructor : 1; 2354 unsigned has_const_copy_ctor : 1; 2355 unsigned has_complex_copy_ctor : 1; 2356 unsigned has_complex_copy_assign : 1; 2357 unsigned non_aggregate : 1; 2358 2359 unsigned has_complex_dflt : 1; 2360 unsigned has_list_ctor : 1; 2361 unsigned non_std_layout : 1; 2362 unsigned is_literal : 1; 2363 unsigned lazy_move_ctor : 1; 2364 unsigned lazy_move_assign : 1; 2365 unsigned has_complex_move_ctor : 1; 2366 unsigned has_complex_move_assign : 1; 2367 2368 unsigned has_constexpr_ctor : 1; 2369 unsigned unique_obj_representations : 1; 2370 unsigned unique_obj_representations_set : 1; 2371 bool erroneous : 1; 2372 bool non_pod_aggregate : 1; 2373 2374 /* When adding a flag here, consider whether or not it ought to 2375 apply to a template instance if it applies to the template. If 2376 so, make sure to copy it in instantiate_class_template! */ 2377 2378 /* There are some bits left to fill out a 32-bit word. Keep track 2379 of this by updating the size of this bitfield whenever you add or 2380 remove a flag. */ 2381 unsigned dummy : 3; 2382 2383 tree primary_base; 2384 vec<tree_pair_s, va_gc> *vcall_indices; 2385 tree vtables; 2386 tree typeinfo_var; 2387 vec<tree, va_gc> *vbases; 2388 tree as_base; 2389 vec<tree, va_gc> *pure_virtuals; 2390 tree friend_classes; 2391 vec<tree, va_gc> * GTY((reorder ("resort_type_member_vec"))) members; 2392 tree key_method; 2393 tree decl_list; 2394 tree befriending_classes; 2395 /* In a RECORD_TYPE, information specific to Objective-C++, such 2396 as a list of adopted protocols or a pointer to a corresponding 2397 @interface. See objc/objc-act.h for details. */ 2398 tree objc_info; 2399 /* FIXME reuse another field? */ 2400 tree lambda_expr; 2401 }; 2402 2403 /* We used to have a variant type for lang_type. Keep the name of the 2404 checking accessor for the sole survivor. */ 2405 #define LANG_TYPE_CLASS_CHECK(NODE) (TYPE_LANG_SPECIFIC (NODE)) 2406 2407 /* Nonzero for _CLASSTYPE means that operator delete is defined. */ 2408 #define TYPE_GETS_DELETE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->gets_delete) 2409 #define TYPE_GETS_REG_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 1) 2410 #define TYPE_GETS_VEC_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 2) 2411 2412 /* Nonzero if `new NODE[x]' should cause the allocation of extra 2413 storage to indicate how many array elements are in use. */ 2414 #define TYPE_VEC_NEW_USES_COOKIE(NODE) \ 2415 (CLASS_TYPE_P (NODE) \ 2416 && LANG_TYPE_CLASS_CHECK (NODE)->vec_new_uses_cookie) 2417 2418 /* Nonzero means that this _CLASSTYPE node defines ways of converting 2419 itself to other types. */ 2420 #define TYPE_HAS_CONVERSION(NODE) \ 2421 (LANG_TYPE_CLASS_CHECK (NODE)->has_type_conversion) 2422 2423 /* Nonzero means that NODE (a class type) has a default constructor -- 2424 but that it has not yet been declared. */ 2425 #define CLASSTYPE_LAZY_DEFAULT_CTOR(NODE) \ 2426 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_default_ctor) 2427 2428 /* Nonzero means that NODE (a class type) has a copy constructor -- 2429 but that it has not yet been declared. */ 2430 #define CLASSTYPE_LAZY_COPY_CTOR(NODE) \ 2431 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_ctor) 2432 2433 /* Nonzero means that NODE (a class type) has a move constructor -- 2434 but that it has not yet been declared. */ 2435 #define CLASSTYPE_LAZY_MOVE_CTOR(NODE) \ 2436 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_move_ctor) 2437 2438 /* Nonzero means that NODE (a class type) has an assignment operator 2439 -- but that it has not yet been declared. */ 2440 #define CLASSTYPE_LAZY_COPY_ASSIGN(NODE) \ 2441 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_assign) 2442 2443 /* Nonzero means that NODE (a class type) has an assignment operator 2444 -- but that it has not yet been declared. */ 2445 #define CLASSTYPE_LAZY_MOVE_ASSIGN(NODE) \ 2446 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_move_assign) 2447 2448 /* Nonzero means that NODE (a class type) has a destructor -- but that 2449 it has not yet been declared. */ 2450 #define CLASSTYPE_LAZY_DESTRUCTOR(NODE) \ 2451 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_destructor) 2452 2453 /* Nonzero means that NODE (a class type) is final */ 2454 #define CLASSTYPE_FINAL(NODE) \ 2455 TYPE_FINAL_P (NODE) 2456 2457 2458 /* Nonzero means that this _CLASSTYPE node overloads operator=(X&). */ 2459 #define TYPE_HAS_COPY_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_copy_assign) 2460 2461 /* True iff the class type NODE has an "operator =" whose parameter 2462 has a parameter of type "const X&". */ 2463 #define TYPE_HAS_CONST_COPY_ASSIGN(NODE) \ 2464 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_copy_assign) 2465 2466 /* Nonzero means that this _CLASSTYPE node has an X(X&) constructor. */ 2467 #define TYPE_HAS_COPY_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_copy_ctor) 2468 #define TYPE_HAS_CONST_COPY_CTOR(NODE) \ 2469 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_copy_ctor) 2470 2471 /* Nonzero if this class has an X(initializer_list<T>) constructor. */ 2472 #define TYPE_HAS_LIST_CTOR(NODE) \ 2473 (LANG_TYPE_CLASS_CHECK (NODE)->has_list_ctor) 2474 2475 /* Nonzero if this class has a constexpr constructor other than a copy/move 2476 constructor. Note that a class can have constexpr constructors for 2477 static initialization even if it isn't a literal class. */ 2478 #define TYPE_HAS_CONSTEXPR_CTOR(NODE) \ 2479 (LANG_TYPE_CLASS_CHECK (NODE)->has_constexpr_ctor) 2480 2481 /* Nonzero if this class defines an overloaded operator new. (An 2482 operator new [] doesn't count.) */ 2483 #define TYPE_HAS_NEW_OPERATOR(NODE) \ 2484 (LANG_TYPE_CLASS_CHECK (NODE)->has_new) 2485 2486 /* Nonzero if this class defines an overloaded operator new[]. */ 2487 #define TYPE_HAS_ARRAY_NEW_OPERATOR(NODE) \ 2488 (LANG_TYPE_CLASS_CHECK (NODE)->has_array_new) 2489 2490 /* Nonzero means that this type is being defined. I.e., the left brace 2491 starting the definition of this type has been seen. */ 2492 #define TYPE_BEING_DEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->being_defined) 2493 2494 /* Nonzero means that this type is either complete or being defined, so we 2495 can do lookup in it. */ 2496 #define COMPLETE_OR_OPEN_TYPE_P(NODE) \ 2497 (COMPLETE_TYPE_P (NODE) || (CLASS_TYPE_P (NODE) && TYPE_BEING_DEFINED (NODE))) 2498 2499 /* Mark bits for repeated base checks. */ 2500 #define TYPE_MARKED_P(NODE) TREE_LANG_FLAG_6 (TYPE_CHECK (NODE)) 2501 2502 /* Nonzero if the class NODE has multiple paths to the same (virtual) 2503 base object. */ 2504 #define CLASSTYPE_DIAMOND_SHAPED_P(NODE) \ 2505 (LANG_TYPE_CLASS_CHECK(NODE)->diamond_shaped) 2506 2507 /* Nonzero if the class NODE has multiple instances of the same base 2508 type. */ 2509 #define CLASSTYPE_REPEATED_BASE_P(NODE) \ 2510 (LANG_TYPE_CLASS_CHECK(NODE)->repeated_base) 2511 2512 /* The member function with which the vtable will be emitted: 2513 the first noninline non-pure-virtual member function. NULL_TREE 2514 if there is no key function or if this is a class template */ 2515 #define CLASSTYPE_KEY_METHOD(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->key_method) 2516 2517 /* Vector of members. During definition, it is unordered and only 2518 member functions are present. After completion it is sorted and 2519 contains both member functions and non-functions. STAT_HACK is 2520 involved to preserve oneslot per name invariant. */ 2521 #define CLASSTYPE_MEMBER_VEC(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->members) 2522 2523 /* For class templates, this is a TREE_LIST of all member data, 2524 functions, types, and friends in the order of declaration. 2525 The TREE_PURPOSE of each TREE_LIST is NULL_TREE for a friend, 2526 and the RECORD_TYPE for the class template otherwise. */ 2527 #define CLASSTYPE_DECL_LIST(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->decl_list) 2528 2529 /* A FUNCTION_DECL or OVERLOAD for the constructors for NODE. These 2530 are the constructors that take an in-charge parameter. */ 2531 #define CLASSTYPE_CONSTRUCTORS(NODE) \ 2532 (get_class_binding_direct (NODE, ctor_identifier)) 2533 2534 /* A FUNCTION_DECL for the destructor for NODE. This is the 2535 destructors that take an in-charge parameter. If 2536 CLASSTYPE_LAZY_DESTRUCTOR is true, then this entry will be NULL 2537 until the destructor is created with lazily_declare_fn. */ 2538 #define CLASSTYPE_DESTRUCTOR(NODE) \ 2539 (get_class_binding_direct (NODE, dtor_identifier)) 2540 2541 /* Nonzero if NODE has a primary base class, i.e., a base class with 2542 which it shares the virtual function table pointer. */ 2543 #define CLASSTYPE_HAS_PRIMARY_BASE_P(NODE) \ 2544 (CLASSTYPE_PRIMARY_BINFO (NODE) != NULL_TREE) 2545 2546 /* If non-NULL, this is the binfo for the primary base class, i.e., 2547 the base class which contains the virtual function table pointer 2548 for this class. */ 2549 #define CLASSTYPE_PRIMARY_BINFO(NODE) \ 2550 (LANG_TYPE_CLASS_CHECK (NODE)->primary_base) 2551 2552 /* A vector of BINFOs for the direct and indirect virtual base classes 2553 that this type uses in a post-order depth-first left-to-right 2554 order. (In other words, these bases appear in the order that they 2555 should be initialized.) */ 2556 #define CLASSTYPE_VBASECLASSES(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->vbases) 2557 2558 /* The type corresponding to NODE when NODE is used as a base class, 2559 i.e., NODE without virtual base classes or tail padding. */ 2560 #define CLASSTYPE_AS_BASE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->as_base) 2561 2562 /* True iff NODE is the CLASSTYPE_AS_BASE version of some type. */ 2563 #define IS_FAKE_BASE_TYPE(NODE) \ 2564 (TREE_CODE (NODE) == RECORD_TYPE \ 2565 && TYPE_CONTEXT (NODE) && CLASS_TYPE_P (TYPE_CONTEXT (NODE)) \ 2566 && CLASSTYPE_AS_BASE (TYPE_CONTEXT (NODE)) == (NODE)) 2567 2568 /* These are the size and alignment of the type without its virtual 2569 base classes, for when we use this type as a base itself. */ 2570 #define CLASSTYPE_SIZE(NODE) TYPE_SIZE (CLASSTYPE_AS_BASE (NODE)) 2571 #define CLASSTYPE_SIZE_UNIT(NODE) TYPE_SIZE_UNIT (CLASSTYPE_AS_BASE (NODE)) 2572 #define CLASSTYPE_ALIGN(NODE) TYPE_ALIGN (CLASSTYPE_AS_BASE (NODE)) 2573 #define CLASSTYPE_USER_ALIGN(NODE) TYPE_USER_ALIGN (CLASSTYPE_AS_BASE (NODE)) 2574 2575 /* The alignment of NODE, without its virtual bases, in bytes. */ 2576 #define CLASSTYPE_ALIGN_UNIT(NODE) \ 2577 (CLASSTYPE_ALIGN (NODE) / BITS_PER_UNIT) 2578 2579 /* A vec<tree> of virtual functions which cannot be inherited by 2580 derived classes. When deriving from this type, the derived 2581 class must provide its own definition for each of these functions. */ 2582 #define CLASSTYPE_PURE_VIRTUALS(NODE) \ 2583 (LANG_TYPE_CLASS_CHECK (NODE)->pure_virtuals) 2584 2585 /* Nonzero means that this type is an abstract class type. */ 2586 #define ABSTRACT_CLASS_TYPE_P(NODE) \ 2587 (CLASS_TYPE_P (NODE) && CLASSTYPE_PURE_VIRTUALS(NODE)) 2588 2589 /* Nonzero means that this type has an X() constructor. */ 2590 #define TYPE_HAS_DEFAULT_CONSTRUCTOR(NODE) \ 2591 (LANG_TYPE_CLASS_CHECK (NODE)->has_default_ctor) 2592 2593 /* Nonzero means that this type contains a mutable member. */ 2594 #define CLASSTYPE_HAS_MUTABLE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_mutable) 2595 #define TYPE_HAS_MUTABLE_P(NODE) (cp_has_mutable_p (NODE)) 2596 2597 /* Nonzero means that this class type is not POD for the purpose of layout 2598 (as defined in the ABI). This is different from the language's POD. */ 2599 #define CLASSTYPE_NON_LAYOUT_POD_P(NODE) \ 2600 (LANG_TYPE_CLASS_CHECK (NODE)->non_pod_class) 2601 2602 /* Nonzero means that this class type is a non-standard-layout class. */ 2603 #define CLASSTYPE_NON_STD_LAYOUT(NODE) \ 2604 (LANG_TYPE_CLASS_CHECK (NODE)->non_std_layout) 2605 2606 /* Nonzero means that this class type does have unique object 2607 representations. */ 2608 #define CLASSTYPE_UNIQUE_OBJ_REPRESENTATIONS(NODE) \ 2609 (LANG_TYPE_CLASS_CHECK (NODE)->unique_obj_representations) 2610 2611 /* Nonzero means that this class type has 2612 CLASSTYPE_UNIQUE_OBJ_REPRESENTATIONS computed. */ 2613 #define CLASSTYPE_UNIQUE_OBJ_REPRESENTATIONS_SET(NODE) \ 2614 (LANG_TYPE_CLASS_CHECK (NODE)->unique_obj_representations_set) 2615 2616 /* Nonzero means that this class contains pod types whose default 2617 initialization is not a zero initialization (namely, pointers to 2618 data members). */ 2619 #define CLASSTYPE_NON_ZERO_INIT_P(NODE) \ 2620 (LANG_TYPE_CLASS_CHECK (NODE)->non_zero_init) 2621 2622 /* Nonzero if this class is "empty" in the sense of the C++ ABI. */ 2623 #define CLASSTYPE_EMPTY_P(NODE) \ 2624 (LANG_TYPE_CLASS_CHECK (NODE)->empty_p) 2625 2626 /* Nonzero if this class is "nearly empty", i.e., contains only a 2627 virtual function table pointer. */ 2628 #define CLASSTYPE_NEARLY_EMPTY_P(NODE) \ 2629 (LANG_TYPE_CLASS_CHECK (NODE)->nearly_empty_p) 2630 2631 /* Nonzero if this class contains an empty subobject. */ 2632 #define CLASSTYPE_CONTAINS_EMPTY_CLASS_P(NODE) \ 2633 (LANG_TYPE_CLASS_CHECK (NODE)->contains_empty_class_p) 2634 2635 /* A list of class types of which this type is a friend. The 2636 TREE_VALUE is normally a TYPE, but will be a TEMPLATE_DECL in the 2637 case of a template friend. */ 2638 #define CLASSTYPE_FRIEND_CLASSES(NODE) \ 2639 (LANG_TYPE_CLASS_CHECK (NODE)->friend_classes) 2640 2641 /* A list of the classes which grant friendship to this class. */ 2642 #define CLASSTYPE_BEFRIENDING_CLASSES(NODE) \ 2643 (LANG_TYPE_CLASS_CHECK (NODE)->befriending_classes) 2644 2645 /* The associated LAMBDA_EXPR that made this class. */ 2646 #define CLASSTYPE_LAMBDA_EXPR(NODE) \ 2647 (LANG_TYPE_CLASS_CHECK (NODE)->lambda_expr) 2648 /* The extra mangling scope for this closure type. */ 2649 #define LAMBDA_TYPE_EXTRA_SCOPE(NODE) \ 2650 (LAMBDA_EXPR_EXTRA_SCOPE (CLASSTYPE_LAMBDA_EXPR (NODE))) 2651 2652 /* Say whether this node was declared as a "class" or a "struct". */ 2653 #define CLASSTYPE_DECLARED_CLASS(NODE) \ 2654 (LANG_TYPE_CLASS_CHECK (NODE)->declared_class) 2655 2656 /* Nonzero if this class has const members 2657 which have no specified initialization. */ 2658 #define CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE) \ 2659 (TYPE_LANG_SPECIFIC (NODE) \ 2660 ? LANG_TYPE_CLASS_CHECK (NODE)->const_needs_init : 0) 2661 #define SET_CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE, VALUE) \ 2662 (LANG_TYPE_CLASS_CHECK (NODE)->const_needs_init = (VALUE)) 2663 2664 /* Nonzero if this class has ref members 2665 which have no specified initialization. */ 2666 #define CLASSTYPE_REF_FIELDS_NEED_INIT(NODE) \ 2667 (TYPE_LANG_SPECIFIC (NODE) \ 2668 ? LANG_TYPE_CLASS_CHECK (NODE)->ref_needs_init : 0) 2669 #define SET_CLASSTYPE_REF_FIELDS_NEED_INIT(NODE, VALUE) \ 2670 (LANG_TYPE_CLASS_CHECK (NODE)->ref_needs_init = (VALUE)) 2671 2672 /* Nonzero if this class is included from a header file which employs 2673 `#pragma interface', and it is not included in its implementation file. */ 2674 #define CLASSTYPE_INTERFACE_ONLY(NODE) \ 2675 (LANG_TYPE_CLASS_CHECK (NODE)->interface_only) 2676 2677 /* True if we have already determined whether or not vtables, VTTs, 2678 typeinfo, and other similar per-class data should be emitted in 2679 this translation unit. This flag does not indicate whether or not 2680 these items should be emitted; it only indicates that we know one 2681 way or the other. */ 2682 #define CLASSTYPE_INTERFACE_KNOWN(NODE) \ 2683 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown == 0) 2684 /* The opposite of CLASSTYPE_INTERFACE_KNOWN. */ 2685 #define CLASSTYPE_INTERFACE_UNKNOWN(NODE) \ 2686 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown) 2687 2688 #define SET_CLASSTYPE_INTERFACE_UNKNOWN_X(NODE,X) \ 2689 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = !!(X)) 2690 #define SET_CLASSTYPE_INTERFACE_UNKNOWN(NODE) \ 2691 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 1) 2692 #define SET_CLASSTYPE_INTERFACE_KNOWN(NODE) \ 2693 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 0) 2694 2695 /* Nonzero if a _DECL node requires us to output debug info for this class. */ 2696 #define CLASSTYPE_DEBUG_REQUESTED(NODE) \ 2697 (LANG_TYPE_CLASS_CHECK (NODE)->debug_requested) 2698 2699 /* True if we saw errors while instantiating this class. */ 2700 #define CLASSTYPE_ERRONEOUS(NODE) \ 2701 (LANG_TYPE_CLASS_CHECK (NODE)->erroneous) 2702 2703 /* True if this class is non-layout-POD only because it was not an aggregate 2704 before C++14. If we run out of bits in lang_type, this could be replaced 2705 with a hash_set only filled in when abi_version_crosses (17). */ 2706 #define CLASSTYPE_NON_POD_AGGREGATE(NODE) \ 2707 (LANG_TYPE_CLASS_CHECK (NODE)->non_pod_aggregate) 2708 2709 /* Additional macros for inheritance information. */ 2711 2712 /* Nonzero means that this class is on a path leading to a new vtable. */ 2713 #define BINFO_VTABLE_PATH_MARKED(NODE) BINFO_FLAG_1 (NODE) 2714 2715 /* Nonzero means B (a BINFO) has its own vtable. Any copies will not 2716 have this flag set. */ 2717 #define BINFO_NEW_VTABLE_MARKED(B) (BINFO_FLAG_2 (B)) 2718 2719 /* Compare a BINFO_TYPE with another type for equality. For a binfo, 2720 this is functionally equivalent to using same_type_p, but 2721 measurably faster. At least one of the arguments must be a 2722 BINFO_TYPE. The other can be a BINFO_TYPE or a regular type. If 2723 BINFO_TYPE(T) ever stops being the main variant of the class the 2724 binfo is for, this macro must change. */ 2725 #define SAME_BINFO_TYPE_P(A, B) ((A) == (B)) 2726 2727 /* Any subobject that needs a new vtable must have a vptr and must not 2728 be a non-virtual primary base (since it would then use the vtable from a 2729 derived class and never become non-primary.) */ 2730 #define SET_BINFO_NEW_VTABLE_MARKED(B) \ 2731 (BINFO_NEW_VTABLE_MARKED (B) = 1, \ 2732 gcc_assert (!BINFO_PRIMARY_P (B) || BINFO_VIRTUAL_P (B)), \ 2733 gcc_assert (TYPE_VFIELD (BINFO_TYPE (B)))) 2734 2735 /* Nonzero if this binfo is for a dependent base - one that should not 2736 be searched. */ 2737 #define BINFO_DEPENDENT_BASE_P(NODE) BINFO_FLAG_3 (NODE) 2738 2739 /* Nonzero if this binfo has lost its primary base binfo (because that 2740 is a nearly-empty virtual base that has been taken by some other 2741 base in the complete hierarchy. */ 2742 #define BINFO_LOST_PRIMARY_P(NODE) BINFO_FLAG_4 (NODE) 2743 2744 /* Nonzero if this BINFO is a primary base class. */ 2745 #define BINFO_PRIMARY_P(NODE) BINFO_FLAG_5(NODE) 2746 2747 /* A vec<tree_pair_s> of the vcall indices associated with the class 2749 NODE. The PURPOSE of each element is a FUNCTION_DECL for a virtual 2750 function. The VALUE is the index into the virtual table where the 2751 vcall offset for that function is stored, when NODE is a virtual 2752 base. */ 2753 #define CLASSTYPE_VCALL_INDICES(NODE) \ 2754 (LANG_TYPE_CLASS_CHECK (NODE)->vcall_indices) 2755 2756 /* The various vtables for the class NODE. The primary vtable will be 2757 first, followed by the construction vtables and VTT, if any. */ 2758 #define CLASSTYPE_VTABLES(NODE) \ 2759 (LANG_TYPE_CLASS_CHECK (NODE)->vtables) 2760 2761 /* The std::type_info variable representing this class, or NULL if no 2762 such variable has been created. This field is only set for the 2763 TYPE_MAIN_VARIANT of the class. */ 2764 #define CLASSTYPE_TYPEINFO_VAR(NODE) \ 2765 (LANG_TYPE_CLASS_CHECK (NODE)->typeinfo_var) 2766 2767 /* Accessor macros for the BINFO_VIRTUALS list. */ 2768 2769 /* The number of bytes by which to adjust the `this' pointer when 2770 calling this virtual function. Subtract this value from the this 2771 pointer. Always non-NULL, might be constant zero though. */ 2772 #define BV_DELTA(NODE) (TREE_PURPOSE (NODE)) 2773 2774 /* If non-NULL, the vtable index at which to find the vcall offset 2775 when calling this virtual function. Add the value at that vtable 2776 index to the this pointer. */ 2777 #define BV_VCALL_INDEX(NODE) (TREE_TYPE (NODE)) 2778 2779 /* The function to call. */ 2780 #define BV_FN(NODE) (TREE_VALUE (NODE)) 2781 2782 /* Whether or not this entry is for a lost primary virtual base. */ 2783 #define BV_LOST_PRIMARY(NODE) (TREE_LANG_FLAG_0 (NODE)) 2784 2785 /* For FUNCTION_TYPE or METHOD_TYPE, a list of the exceptions that 2787 this type can raise. Each TREE_VALUE is a _TYPE. The TREE_VALUE 2788 will be NULL_TREE to indicate a throw specification of `()', or 2789 no exceptions allowed. For a noexcept specification, TREE_VALUE 2790 is NULL_TREE and TREE_PURPOSE is the constant-expression. For 2791 a deferred noexcept-specification, TREE_PURPOSE is a DEFERRED_NOEXCEPT 2792 (for templates) or an OVERLOAD list of functions (for implicitly 2793 declared functions). */ 2794 #define TYPE_RAISES_EXCEPTIONS(NODE) \ 2795 TYPE_LANG_SLOT_1 (FUNC_OR_METHOD_CHECK (NODE)) 2796 2797 /* For FUNCTION_TYPE or METHOD_TYPE, return 1 iff it is declared `throw()' 2798 or noexcept(true). */ 2799 #define TYPE_NOTHROW_P(NODE) nothrow_spec_p (TYPE_RAISES_EXCEPTIONS (NODE)) 2800 2801 /* For FUNCTION_TYPE or METHOD_TYPE, true if NODE is noexcept. This is the 2802 case for things declared noexcept(true) and, with -fnothrow-opt, for 2803 throw() functions. */ 2804 #define TYPE_NOEXCEPT_P(NODE) type_noexcept_p (NODE) 2805 2806 /* The binding level associated with the namespace. */ 2807 #define NAMESPACE_LEVEL(NODE) \ 2808 (LANG_DECL_NS_CHECK (NODE)->level) 2809 2810 /* Discriminator values for lang_decl. */ 2812 2813 enum lang_decl_selector 2814 { 2815 lds_min, 2816 lds_fn, 2817 lds_ns, 2818 lds_parm, 2819 lds_decomp 2820 }; 2821 2822 /* Flags shared by all forms of DECL_LANG_SPECIFIC. 2823 2824 Some of the flags live here only to make lang_decl_min/fn smaller. Do 2825 not make this struct larger than 32 bits. */ 2826 2827 struct GTY(()) lang_decl_base { 2828 ENUM_BITFIELD(lang_decl_selector) selector : 3; 2829 ENUM_BITFIELD(languages) language : 1; 2830 unsigned use_template : 2; 2831 unsigned not_really_extern : 1; /* var or fn */ 2832 unsigned initialized_in_class : 1; /* var or fn */ 2833 2834 unsigned threadprivate_or_deleted_p : 1; /* var or fn */ 2835 /* anticipated_p is no longer used for anticipated_decls (fn, type 2836 or template). It is used as DECL_OMP_PRIVATIZED_MEMBER in 2837 var. */ 2838 unsigned anticipated_p : 1; 2839 unsigned friend_or_tls : 1; /* var, fn, type or template */ 2840 unsigned unknown_bound_p : 1; /* var */ 2841 unsigned odr_used : 1; /* var or fn */ 2842 unsigned concept_p : 1; /* applies to vars and functions */ 2843 unsigned var_declared_inline_p : 1; /* var */ 2844 unsigned dependent_init_p : 1; /* var */ 2845 2846 /* The following apply to VAR, FUNCTION, TYPE, CONCEPT, & NAMESPACE 2847 decls. */ 2848 // FIXME: Purview and Attachment are not the same thing, due to 2849 // linkage-declarations. The modules code presumes they are the 2850 // same. (For context, linkage-decl semantics was a very late 2851 // change). We need a module_attachment_p flag, and this will allow 2852 // some simplification of how we handle header unit entities. 2853 // Hurrah! 2854 unsigned module_purview_p : 1; /* in module purview (not GMF) */ 2855 unsigned module_import_p : 1; /* from an import */ 2856 unsigned module_entity_p : 1; /* is in the entitity ary & 2857 hash. */ 2858 /* VAR_DECL or FUNCTION_DECL has attached decls. */ 2859 unsigned module_attached_p : 1; 2860 2861 /* 12 spare bits. */ 2862 }; 2863 2864 /* True for DECL codes which have template info and access. */ 2865 #define LANG_DECL_HAS_MIN(NODE) \ 2866 (VAR_OR_FUNCTION_DECL_P (NODE) \ 2867 || TREE_CODE (NODE) == FIELD_DECL \ 2868 || TREE_CODE (NODE) == CONST_DECL \ 2869 || TREE_CODE (NODE) == TYPE_DECL \ 2870 || TREE_CODE (NODE) == TEMPLATE_DECL \ 2871 || TREE_CODE (NODE) == USING_DECL \ 2872 || TREE_CODE (NODE) == CONCEPT_DECL) 2873 2874 /* DECL_LANG_SPECIFIC for the above codes. */ 2875 2876 struct GTY(()) lang_decl_min { 2877 struct lang_decl_base base; /* 32-bits. */ 2878 2879 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is 2880 THUNK_ALIAS. 2881 In a FUNCTION_DECL for which DECL_THUNK_P does not hold, 2882 VAR_DECL, TYPE_DECL, or TEMPLATE_DECL, this is 2883 DECL_TEMPLATE_INFO. */ 2884 tree template_info; 2885 2886 /* In a DECL_THUNK_P FUNCTION_DECL, this is THUNK_VIRTUAL_OFFSET. 2887 In a lambda-capture proxy VAR_DECL, this is DECL_CAPTURED_VARIABLE. 2888 In a function-scope TREE_STATIC VAR_DECL or IMPLICIT_TYPEDEF_P TYPE_DECL, 2889 this is DECL_DISCRIMINATOR. 2890 In a DECL_LOCAL_DECL_P decl, this is the namespace decl it aliases. 2891 Otherwise, in a class-scope DECL, this is DECL_ACCESS. */ 2892 tree access; 2893 }; 2894 2895 /* Additional DECL_LANG_SPECIFIC information for functions. */ 2896 2897 struct GTY(()) lang_decl_fn { 2898 struct lang_decl_min min; 2899 2900 /* In a overloaded operator, this is the compressed operator code. */ 2901 unsigned ovl_op_code : 6; 2902 unsigned global_ctor_p : 1; 2903 unsigned global_dtor_p : 1; 2904 2905 unsigned static_function : 1; 2906 unsigned pure_virtual : 1; 2907 unsigned defaulted_p : 1; 2908 unsigned has_in_charge_parm_p : 1; 2909 unsigned has_vtt_parm_p : 1; 2910 unsigned pending_inline_p : 1; 2911 unsigned nonconverting : 1; 2912 unsigned thunk_p : 1; 2913 2914 unsigned this_thunk_p : 1; 2915 unsigned omp_declare_reduction_p : 1; 2916 unsigned has_dependent_explicit_spec_p : 1; 2917 unsigned immediate_fn_p : 1; 2918 unsigned maybe_deleted : 1; 2919 unsigned coroutine_p : 1; 2920 unsigned implicit_constexpr : 1; 2921 2922 unsigned spare : 9; 2923 2924 /* 32-bits padding on 64-bit host. */ 2925 2926 /* For a non-thunk function decl, this is a tree list of 2927 friendly classes. For a thunk function decl, it is the 2928 thunked to function decl. */ 2929 tree befriending_classes; 2930 2931 /* For a virtual FUNCTION_DECL for which 2932 DECL_THIS_THUNK_P does not hold, this is DECL_THUNKS. Both 2933 this pointer and result pointer adjusting thunks are 2934 chained here. This pointer thunks to return pointer thunks 2935 will be chained on the return pointer thunk. 2936 For a DECL_CONSTUCTOR_P FUNCTION_DECL, this is the base from 2937 whence we inherit. Otherwise, it is the class in which a 2938 (namespace-scope) friend is defined (if any). */ 2939 tree context; 2940 2941 union lang_decl_u5 2942 { 2943 /* In a non-thunk FUNCTION_DECL, this is DECL_CLONED_FUNCTION. */ 2944 tree GTY ((tag ("0"))) cloned_function; 2945 2946 /* In a FUNCTION_DECL for which THUNK_P holds this is the 2947 THUNK_FIXED_OFFSET. */ 2948 HOST_WIDE_INT GTY ((tag ("1"))) fixed_offset; 2949 } GTY ((desc ("%1.thunk_p"))) u5; 2950 2951 union lang_decl_u3 2952 { 2953 struct cp_token_cache * GTY ((tag ("1"))) pending_inline_info; 2954 tree GTY ((tag ("0"))) saved_auto_return_type; 2955 } GTY ((desc ("%1.pending_inline_p"))) u; 2956 2957 }; 2958 2959 /* DECL_LANG_SPECIFIC for namespaces. */ 2960 2961 struct GTY(()) lang_decl_ns { 2962 struct lang_decl_base base; /* 32 bits. */ 2963 cp_binding_level *level; 2964 2965 /* Inline children. Needs to be va_gc, because of PCH. */ 2966 vec<tree, va_gc> *inlinees; 2967 2968 /* Hash table of bound decls. It'd be nice to have this inline, but 2969 as the hash_map has a dtor, we can't then put this struct into a 2970 union (until moving to c++11). */ 2971 hash_table<named_decl_hash> *bindings; 2972 }; 2973 2974 /* DECL_LANG_SPECIFIC for parameters. */ 2975 2976 struct GTY(()) lang_decl_parm { 2977 struct lang_decl_base base; /* 32 bits. */ 2978 int level; 2979 int index; 2980 }; 2981 2982 /* Additional DECL_LANG_SPECIFIC information for structured bindings. */ 2983 2984 struct GTY(()) lang_decl_decomp { 2985 struct lang_decl_min min; 2986 /* The artificial underlying "e" variable of the structured binding 2987 variable. */ 2988 tree base; 2989 }; 2990 2991 /* DECL_LANG_SPECIFIC for all types. It would be nice to just make this a 2992 union rather than a struct containing a union as its only field, but 2993 tree.h declares it as a struct. */ 2994 2995 struct GTY(()) lang_decl { 2996 union GTY((desc ("%h.base.selector"))) lang_decl_u { 2997 /* Nothing of only the base type exists. */ 2998 struct lang_decl_base GTY ((default)) base; 2999 struct lang_decl_min GTY((tag ("lds_min"))) min; 3000 struct lang_decl_fn GTY ((tag ("lds_fn"))) fn; 3001 struct lang_decl_ns GTY((tag ("lds_ns"))) ns; 3002 struct lang_decl_parm GTY((tag ("lds_parm"))) parm; 3003 struct lang_decl_decomp GTY((tag ("lds_decomp"))) decomp; 3004 } u; 3005 }; 3006 3007 /* Looks through a template (if present) to find what it declares. */ 3008 #define STRIP_TEMPLATE(NODE) \ 3009 (TREE_CODE (NODE) == TEMPLATE_DECL ? DECL_TEMPLATE_RESULT (NODE) : NODE) 3010 3011 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007) 3012 3013 #define LANG_DECL_MIN_CHECK(NODE) __extension__ \ 3014 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 3015 if (!LANG_DECL_HAS_MIN (NODE)) \ 3016 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 3017 <->u.min; }) 3018 3019 /* We want to be able to check DECL_CONSTRUCTOR_P and such on a function 3020 template, not just on a FUNCTION_DECL. So when looking for things in 3021 lang_decl_fn, look down through a TEMPLATE_DECL into its result. */ 3022 #define LANG_DECL_FN_CHECK(NODE) __extension__ \ 3023 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE)); \ 3024 if (!DECL_DECLARES_FUNCTION_P (NODE) \ 3025 || lt->u.base.selector != lds_fn) \ 3026 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 3027 <->u.fn; }) 3028 3029 #define LANG_DECL_NS_CHECK(NODE) __extension__ \ 3030 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 3031 if (TREE_CODE (NODE) != NAMESPACE_DECL \ 3032 || lt->u.base.selector != lds_ns) \ 3033 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 3034 <->u.ns; }) 3035 3036 #define LANG_DECL_PARM_CHECK(NODE) __extension__ \ 3037 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 3038 if (TREE_CODE (NODE) != PARM_DECL \ 3039 || lt->u.base.selector != lds_parm) \ 3040 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 3041 <->u.parm; }) 3042 3043 #define LANG_DECL_DECOMP_CHECK(NODE) __extension__ \ 3044 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 3045 if (!VAR_P (NODE) \ 3046 || lt->u.base.selector != lds_decomp) \ 3047 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 3048 <->u.decomp; }) 3049 3050 #else 3051 3052 #define LANG_DECL_MIN_CHECK(NODE) \ 3053 (&DECL_LANG_SPECIFIC (NODE)->u.min) 3054 3055 #define LANG_DECL_FN_CHECK(NODE) \ 3056 (&DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE))->u.fn) 3057 3058 #define LANG_DECL_NS_CHECK(NODE) \ 3059 (&DECL_LANG_SPECIFIC (NODE)->u.ns) 3060 3061 #define LANG_DECL_PARM_CHECK(NODE) \ 3062 (&DECL_LANG_SPECIFIC (NODE)->u.parm) 3063 3064 #define LANG_DECL_DECOMP_CHECK(NODE) \ 3065 (&DECL_LANG_SPECIFIC (NODE)->u.decomp) 3066 3067 #endif /* ENABLE_TREE_CHECKING */ 3068 3069 /* For a FUNCTION_DECL or a VAR_DECL, the language linkage for the 3070 declaration. Some entities (like a member function in a local 3071 class, or a local variable) do not have linkage at all, and this 3072 macro should not be used in those cases. 3073 3074 Implementation note: A FUNCTION_DECL without DECL_LANG_SPECIFIC was 3075 created by language-independent code, and has C linkage. Most 3076 VAR_DECLs have C++ linkage, and do not have DECL_LANG_SPECIFIC, but 3077 we do create DECL_LANG_SPECIFIC for variables with non-C++ linkage. */ 3078 #define DECL_LANGUAGE(NODE) \ 3079 (DECL_LANG_SPECIFIC (NODE) \ 3080 ? DECL_LANG_SPECIFIC (NODE)->u.base.language \ 3081 : (TREE_CODE (NODE) == FUNCTION_DECL \ 3082 ? lang_c : lang_cplusplus)) 3083 3084 /* Set the language linkage for NODE to LANGUAGE. */ 3085 #define SET_DECL_LANGUAGE(NODE, LANGUAGE) \ 3086 (DECL_LANG_SPECIFIC (NODE)->u.base.language = (LANGUAGE)) 3087 3088 /* For FUNCTION_DECLs and TEMPLATE_DECLs: nonzero means that this function 3089 is a constructor. */ 3090 #define DECL_CONSTRUCTOR_P(NODE) \ 3091 DECL_CXX_CONSTRUCTOR_P (STRIP_TEMPLATE (NODE)) 3092 3093 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a complete 3094 object. */ 3095 #define DECL_COMPLETE_CONSTRUCTOR_P(NODE) \ 3096 (DECL_NAME (NODE) == complete_ctor_identifier) 3097 3098 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a base 3099 object. */ 3100 #define DECL_BASE_CONSTRUCTOR_P(NODE) \ 3101 (DECL_NAME (NODE) == base_ctor_identifier) 3102 3103 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor, but not either the 3104 specialized in-charge constructor or the specialized not-in-charge 3105 constructor. */ 3106 #define DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P(NODE) \ 3107 (DECL_NAME (NODE) == ctor_identifier) 3108 3109 /* Nonzero if NODE (a FUNCTION_DECL) is a copy constructor. */ 3110 #define DECL_COPY_CONSTRUCTOR_P(NODE) \ 3111 (DECL_CONSTRUCTOR_P (NODE) && copy_fn_p (NODE) > 0) 3112 3113 /* Nonzero if NODE (a FUNCTION_DECL) is a move constructor. */ 3114 #define DECL_MOVE_CONSTRUCTOR_P(NODE) \ 3115 (DECL_CONSTRUCTOR_P (NODE) && move_fn_p (NODE)) 3116 3117 /* Nonzero if NODE (a FUNCTION_DECL or TEMPLATE_DECL) 3118 is a destructor. */ 3119 #define DECL_DESTRUCTOR_P(NODE) \ 3120 DECL_CXX_DESTRUCTOR_P (STRIP_TEMPLATE (NODE)) 3121 3122 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor, but not the 3123 specialized in-charge constructor, in-charge deleting constructor, 3124 or the base destructor. */ 3125 #define DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P(NODE) \ 3126 (DECL_NAME (NODE) == dtor_identifier) 3127 3128 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete 3129 object. */ 3130 #define DECL_COMPLETE_DESTRUCTOR_P(NODE) \ 3131 (DECL_NAME (NODE) == complete_dtor_identifier) 3132 3133 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a base 3134 object. */ 3135 #define DECL_BASE_DESTRUCTOR_P(NODE) \ 3136 (DECL_NAME (NODE) == base_dtor_identifier) 3137 3138 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete 3139 object that deletes the object after it has been destroyed. */ 3140 #define DECL_DELETING_DESTRUCTOR_P(NODE) \ 3141 (DECL_NAME (NODE) == deleting_dtor_identifier) 3142 3143 /* Nonzero if either DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P or 3144 DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P is true of NODE. */ 3145 #define DECL_MAYBE_IN_CHARGE_CDTOR_P(NODE) \ 3146 (DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (NODE) \ 3147 || DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (NODE)) 3148 3149 /* Nonzero if NODE (a _DECL) is a cloned constructor or 3150 destructor. */ 3151 #define DECL_CLONED_FUNCTION_P(NODE) \ 3152 (DECL_NAME (NODE) \ 3153 && IDENTIFIER_CDTOR_P (DECL_NAME (NODE)) \ 3154 && !DECL_MAYBE_IN_CHARGE_CDTOR_P (NODE)) 3155 3156 /* If DECL_CLONED_FUNCTION_P holds, this is the function that was 3157 cloned. */ 3158 #define DECL_CLONED_FUNCTION(NODE) \ 3159 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (NODE))->u.fn.u5.cloned_function) 3160 3161 /* Perform an action for each clone of FN, if FN is a function with 3162 clones. This macro should be used like: 3163 3164 FOR_EACH_CLONE (clone, fn) 3165 { ... } 3166 3167 */ 3168 #define FOR_EACH_CLONE(CLONE, FN) \ 3169 if (!(TREE_CODE (FN) == FUNCTION_DECL \ 3170 && DECL_MAYBE_IN_CHARGE_CDTOR_P (FN))) \ 3171 ; \ 3172 else \ 3173 for (CLONE = DECL_CHAIN (FN); \ 3174 CLONE && DECL_CLONED_FUNCTION_P (CLONE); \ 3175 CLONE = DECL_CHAIN (CLONE)) 3176 3177 /* Nonzero if NODE has DECL_DISCRIMINATOR and not DECL_ACCESS. */ 3178 #define DECL_DISCRIMINATOR_P(NODE) \ 3179 (((TREE_CODE (NODE) == VAR_DECL && TREE_STATIC (NODE)) \ 3180 || DECL_IMPLICIT_TYPEDEF_P (NODE)) \ 3181 && DECL_FUNCTION_SCOPE_P (NODE)) 3182 3183 /* Discriminator for name mangling. */ 3184 #define DECL_DISCRIMINATOR(NODE) (LANG_DECL_MIN_CHECK (NODE)->access) 3185 3186 /* The index of a user-declared parameter in its function, starting at 1. 3187 All artificial parameters will have index 0. */ 3188 #define DECL_PARM_INDEX(NODE) \ 3189 (LANG_DECL_PARM_CHECK (NODE)->index) 3190 3191 /* The level of a user-declared parameter in its function, starting at 1. 3192 A parameter of the function will have level 1; a parameter of the first 3193 nested function declarator (i.e. t in void f (void (*p)(T t))) will have 3194 level 2. */ 3195 #define DECL_PARM_LEVEL(NODE) \ 3196 (LANG_DECL_PARM_CHECK (NODE)->level) 3197 3198 /* Nonzero if the VTT parm has been added to NODE. */ 3199 #define DECL_HAS_VTT_PARM_P(NODE) \ 3200 (LANG_DECL_FN_CHECK (NODE)->has_vtt_parm_p) 3201 3202 /* Nonzero if NODE is a user-defined conversion operator. */ 3203 #define DECL_CONV_FN_P(NODE) IDENTIFIER_CONV_OP_P (DECL_NAME (NODE)) 3204 3205 /* The type to which conversion operator FN converts to. */ 3206 #define DECL_CONV_FN_TYPE(FN) \ 3207 TREE_TYPE ((gcc_checking_assert (DECL_CONV_FN_P (FN)), DECL_NAME (FN))) 3208 3209 /* Nonzero if NODE, a static data member, was declared in its class as an 3210 array of unknown bound. */ 3211 #define VAR_HAD_UNKNOWN_BOUND(NODE) \ 3212 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE)) \ 3213 ? DECL_LANG_SPECIFIC (NODE)->u.base.unknown_bound_p \ 3214 : false) 3215 #define SET_VAR_HAD_UNKNOWN_BOUND(NODE) \ 3216 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))->u.base.unknown_bound_p = true) 3217 3218 /* True iff decl NODE is for an overloaded operator. */ 3219 #define DECL_OVERLOADED_OPERATOR_P(NODE) \ 3220 IDENTIFIER_ANY_OP_P (DECL_NAME (NODE)) 3221 3222 /* Nonzero if NODE is an assignment operator (including += and such). */ 3223 #define DECL_ASSIGNMENT_OPERATOR_P(NODE) \ 3224 IDENTIFIER_ASSIGN_OP_P (DECL_NAME (NODE)) 3225 3226 /* NODE is a function_decl for an overloaded operator. Return its 3227 compressed (raw) operator code. Note that this is not a TREE_CODE. */ 3228 #define DECL_OVERLOADED_OPERATOR_CODE_RAW(NODE) \ 3229 (LANG_DECL_FN_CHECK (NODE)->ovl_op_code) 3230 3231 /* DECL is an overloaded operator. Test whether it is for TREE_CODE 3232 (a literal constant). */ 3233 #define DECL_OVERLOADED_OPERATOR_IS(DECL, CODE) \ 3234 (DECL_OVERLOADED_OPERATOR_CODE_RAW (DECL) == OVL_OP_##CODE) 3235 3236 /* For FUNCTION_DECLs: nonzero means that this function is a 3237 constructor or a destructor with an extra in-charge parameter to 3238 control whether or not virtual bases are constructed. */ 3239 #define DECL_HAS_IN_CHARGE_PARM_P(NODE) \ 3240 (LANG_DECL_FN_CHECK (NODE)->has_in_charge_parm_p) 3241 3242 /* Nonzero if DECL is a declaration of __builtin_constant_p. */ 3243 #define DECL_IS_BUILTIN_CONSTANT_P(NODE) \ 3244 (TREE_CODE (NODE) == FUNCTION_DECL \ 3245 && DECL_BUILT_IN_CLASS (NODE) == BUILT_IN_NORMAL \ 3246 && DECL_FUNCTION_CODE (NODE) == BUILT_IN_CONSTANT_P) 3247 3248 /* Nonzero for _DECL means that this decl appears in (or will appear 3249 in) as a member in a RECORD_TYPE or UNION_TYPE node. It is also for 3250 detecting circularity in case members are multiply defined. In the 3251 case of a VAR_DECL, it means that no definition has been seen, even 3252 if an initializer has been. */ 3253 #define DECL_IN_AGGR_P(NODE) (DECL_LANG_FLAG_3 (NODE)) 3254 3255 /* Nonzero for a VAR_DECL means that the variable's initialization (if 3256 any) has been processed. (In general, DECL_INITIALIZED_P is 3257 !DECL_EXTERNAL, but static data members may be initialized even if 3258 not defined.) */ 3259 #define DECL_INITIALIZED_P(NODE) \ 3260 (TREE_LANG_FLAG_1 (VAR_DECL_CHECK (NODE))) 3261 3262 /* Nonzero for a VAR_DECL iff an explicit initializer was provided 3263 or a non-trivial constructor is called. */ 3264 #define DECL_NONTRIVIALLY_INITIALIZED_P(NODE) \ 3265 (TREE_LANG_FLAG_6 (VAR_DECL_CHECK (NODE))) 3266 3267 /* Nonzero for a VAR_DECL that was initialized with a 3268 constant-expression. */ 3269 #define DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P(NODE) \ 3270 (TREE_LANG_FLAG_2 (VAR_DECL_CHECK (NODE))) 3271 3272 /* Nonzero if the DECL was initialized in the class definition itself, 3273 rather than outside the class. This is used for both static member 3274 VAR_DECLS, and FUNCTION_DECLS that are defined in the class. */ 3275 #define DECL_INITIALIZED_IN_CLASS_P(DECL) \ 3276 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \ 3277 ->u.base.initialized_in_class) 3278 3279 /* Nonzero if the DECL is used in the sense of 3.2 [basic.def.odr]. 3280 Only available for decls with DECL_LANG_SPECIFIC. */ 3281 #define DECL_ODR_USED(DECL) \ 3282 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \ 3283 ->u.base.odr_used) 3284 3285 /* Nonzero for FUNCTION_DECL means that this is a friend that is 3286 either not pushed into a namespace/looked up in a class (because it 3287 is a dependent type, in an uninstantiated template), or it has 3288 /only/ been subject to hidden friend injection from one or more 3289 befriending classes. Once another decl matches, the flag is 3290 cleared. There are requirements on its default parms. */ 3291 #define DECL_UNIQUE_FRIEND_P(NODE) \ 3292 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (NODE)) \ 3293 ->u.base.friend_or_tls) 3294 3295 /* True of a TEMPLATE_DECL that is a template class friend. Such 3296 decls are not pushed until instantiated (as they may depend on 3297 parameters of the befriending class). DECL_CHAIN is the 3298 befriending class. */ 3299 #define DECL_UNINSTANTIATED_TEMPLATE_FRIEND_P(NODE) \ 3300 (DECL_LANG_FLAG_4 (TEMPLATE_DECL_CHECK (NODE))) 3301 3302 /* Nonzero if the thread-local variable was declared with __thread as 3303 opposed to thread_local. */ 3304 #define DECL_GNU_TLS_P(NODE) \ 3305 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE)) \ 3306 && DECL_LANG_SPECIFIC (NODE)->u.base.friend_or_tls) 3307 #define SET_DECL_GNU_TLS_P(NODE) \ 3308 (retrofit_lang_decl (VAR_DECL_CHECK (NODE)), \ 3309 DECL_LANG_SPECIFIC (NODE)->u.base.friend_or_tls = true) 3310 3311 /* A TREE_LIST of the types which have befriended this FUNCTION_DECL. */ 3312 #define DECL_BEFRIENDING_CLASSES(NODE) \ 3313 (LANG_DECL_FN_CHECK (NODE)->befriending_classes) 3314 3315 /* Nonzero for FUNCTION_DECL means that this decl is a static 3316 member function. */ 3317 #define DECL_STATIC_FUNCTION_P(NODE) \ 3318 (LANG_DECL_FN_CHECK (NODE)->static_function) 3319 3320 /* Nonzero for FUNCTION_DECL means that this decl is a non-static 3321 member function. */ 3322 #define DECL_NONSTATIC_MEMBER_FUNCTION_P(NODE) \ 3323 (TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE) 3324 3325 /* Nonzero for FUNCTION_DECL means that this decl is a member function 3326 (static or non-static). */ 3327 #define DECL_FUNCTION_MEMBER_P(NODE) \ 3328 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) || DECL_STATIC_FUNCTION_P (NODE)) 3329 3330 /* Nonzero for FUNCTION_DECL means that this member function 3331 has `this' as const X *const. */ 3332 #define DECL_CONST_MEMFUNC_P(NODE) \ 3333 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \ 3334 && CP_TYPE_CONST_P (TREE_TYPE (TREE_VALUE \ 3335 (TYPE_ARG_TYPES (TREE_TYPE (NODE)))))) 3336 3337 /* Nonzero for FUNCTION_DECL means that this member function 3338 has `this' as volatile X *const. */ 3339 #define DECL_VOLATILE_MEMFUNC_P(NODE) \ 3340 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \ 3341 && CP_TYPE_VOLATILE_P (TREE_TYPE (TREE_VALUE \ 3342 (TYPE_ARG_TYPES (TREE_TYPE (NODE)))))) 3343 3344 /* Nonzero for a DECL means that this member is a non-static member. */ 3345 #define DECL_NONSTATIC_MEMBER_P(NODE) \ 3346 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \ 3347 || TREE_CODE (NODE) == FIELD_DECL) 3348 3349 /* Nonzero for a FIELD_DECL means that this member object type 3350 is mutable. */ 3351 #define DECL_MUTABLE_P(NODE) (DECL_LANG_FLAG_0 (FIELD_DECL_CHECK (NODE))) 3352 3353 /* Nonzero for _DECL means that this constructor or conversion function is 3354 non-converting. */ 3355 #define DECL_NONCONVERTING_P(NODE) \ 3356 (LANG_DECL_FN_CHECK (NODE)->nonconverting) 3357 3358 /* Nonzero for FUNCTION_DECL means that this member function is a pure 3359 virtual function. */ 3360 #define DECL_PURE_VIRTUAL_P(NODE) \ 3361 (LANG_DECL_FN_CHECK (NODE)->pure_virtual) 3362 3363 /* Nonzero for FUNCTION_DECL means that this member function (either 3364 a constructor or a conversion function) has an explicit specifier 3365 with a value-dependent expression. */ 3366 #define DECL_HAS_DEPENDENT_EXPLICIT_SPEC_P(NODE) \ 3367 (LANG_DECL_FN_CHECK (NODE)->has_dependent_explicit_spec_p) 3368 3369 /* Nonzero for a defaulted FUNCTION_DECL for which we haven't decided yet if 3370 it's deleted; we will decide in synthesize_method. */ 3371 #define DECL_MAYBE_DELETED(NODE) \ 3372 (LANG_DECL_FN_CHECK (NODE)->maybe_deleted) 3373 3374 /* True (in a FUNCTION_DECL) if NODE is a virtual function that is an 3375 invalid overrider for a function from a base class. Once we have 3376 complained about an invalid overrider we avoid complaining about it 3377 again. */ 3378 #define DECL_INVALID_OVERRIDER_P(NODE) \ 3379 (DECL_LANG_FLAG_4 (NODE)) 3380 3381 /* True (in a FUNCTION_DECL) if NODE is a function declared with 3382 an override virt-specifier */ 3383 #define DECL_OVERRIDE_P(NODE) (TREE_LANG_FLAG_0 (NODE)) 3384 3385 /* The thunks associated with NODE, a FUNCTION_DECL. */ 3386 #define DECL_THUNKS(NODE) \ 3387 (DECL_VIRTUAL_P (NODE) ? LANG_DECL_FN_CHECK (NODE)->context : NULL_TREE) 3388 3389 /* Set DECL_THUNKS. */ 3390 #define SET_DECL_THUNKS(NODE,THUNKS) \ 3391 (LANG_DECL_FN_CHECK (NODE)->context = (THUNKS)) 3392 3393 /* If NODE, a FUNCTION_DECL, is a C++11 inheriting constructor, then this 3394 is the constructor it inherits from. */ 3395 #define DECL_INHERITED_CTOR(NODE) \ 3396 (DECL_DECLARES_FUNCTION_P (NODE) && DECL_CONSTRUCTOR_P (NODE) \ 3397 ? LANG_DECL_FN_CHECK (NODE)->context : NULL_TREE) 3398 3399 /* And this is the base that constructor comes from. */ 3400 #define DECL_INHERITED_CTOR_BASE(NODE) \ 3401 (DECL_INHERITED_CTOR (NODE) \ 3402 ? DECL_CONTEXT (flag_new_inheriting_ctors \ 3403 ? strip_inheriting_ctors (NODE) \ 3404 : DECL_INHERITED_CTOR (NODE)) \ 3405 : NULL_TREE) 3406 3407 /* Set the inherited base. */ 3408 #define SET_DECL_INHERITED_CTOR(NODE,INH) \ 3409 (LANG_DECL_FN_CHECK (NODE)->context = (INH)) 3410 3411 /* Nonzero if NODE is a thunk, rather than an ordinary function. */ 3412 #define DECL_THUNK_P(NODE) \ 3413 (TREE_CODE (NODE) == FUNCTION_DECL \ 3414 && DECL_LANG_SPECIFIC (NODE) \ 3415 && LANG_DECL_FN_CHECK (NODE)->thunk_p) 3416 3417 /* Set DECL_THUNK_P for node. */ 3418 #define SET_DECL_THUNK_P(NODE, THIS_ADJUSTING) \ 3419 (LANG_DECL_FN_CHECK (NODE)->thunk_p = 1, \ 3420 LANG_DECL_FN_CHECK (NODE)->this_thunk_p = (THIS_ADJUSTING)) 3421 3422 /* Nonzero if NODE is a this pointer adjusting thunk. */ 3423 #define DECL_THIS_THUNK_P(NODE) \ 3424 (DECL_THUNK_P (NODE) && LANG_DECL_FN_CHECK (NODE)->this_thunk_p) 3425 3426 /* Nonzero if NODE is a result pointer adjusting thunk. */ 3427 #define DECL_RESULT_THUNK_P(NODE) \ 3428 (DECL_THUNK_P (NODE) && !LANG_DECL_FN_CHECK (NODE)->this_thunk_p) 3429 3430 /* Nonzero if NODE is a FUNCTION_DECL, but not a thunk. */ 3431 #define DECL_NON_THUNK_FUNCTION_P(NODE) \ 3432 (TREE_CODE (NODE) == FUNCTION_DECL && !DECL_THUNK_P (NODE)) 3433 3434 /* Nonzero if NODE is `extern "C"'. */ 3435 #define DECL_EXTERN_C_P(NODE) \ 3436 (DECL_LANGUAGE (NODE) == lang_c) 3437 3438 /* Nonzero if NODE is an `extern "C"' function. */ 3439 #define DECL_EXTERN_C_FUNCTION_P(NODE) \ 3440 (DECL_NON_THUNK_FUNCTION_P (NODE) && DECL_EXTERN_C_P (NODE)) 3441 3442 /* Non-zero if this variable is declared `constinit' specifier. */ 3443 #define DECL_DECLARED_CONSTINIT_P(NODE) \ 3444 (DECL_LANG_FLAG_7 (VAR_DECL_CHECK (NODE))) 3445 3446 /* True if DECL is declared 'constexpr'. */ 3447 #define DECL_DECLARED_CONSTEXPR_P(DECL) \ 3448 DECL_LANG_FLAG_8 (VAR_OR_FUNCTION_DECL_CHECK (STRIP_TEMPLATE (DECL))) 3449 3450 /* True if FNDECL is an immediate function. */ 3451 #define DECL_IMMEDIATE_FUNCTION_P(NODE) \ 3452 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (STRIP_TEMPLATE (NODE))) \ 3453 ? LANG_DECL_FN_CHECK (NODE)->immediate_fn_p \ 3454 : false) 3455 #define SET_DECL_IMMEDIATE_FUNCTION_P(NODE) \ 3456 (retrofit_lang_decl (FUNCTION_DECL_CHECK (NODE)), \ 3457 LANG_DECL_FN_CHECK (NODE)->immediate_fn_p = true) 3458 3459 // True if NODE was declared as 'concept'. The flag implies that the 3460 // declaration is constexpr, that the declaration cannot be specialized or 3461 // refined, and that the result type must be convertible to bool. 3462 #define DECL_DECLARED_CONCEPT_P(NODE) \ 3463 (DECL_LANG_SPECIFIC (NODE)->u.base.concept_p) 3464 3465 /* Nonzero if this DECL is the __PRETTY_FUNCTION__ variable in a 3466 template function. */ 3467 #define DECL_PRETTY_FUNCTION_P(NODE) \ 3468 (DECL_NAME (NODE) \ 3469 && id_equal (DECL_NAME (NODE), "__PRETTY_FUNCTION__")) 3470 3471 /* For a DECL, true if it is __func__ or similar. */ 3472 #define DECL_FNAME_P(NODE) \ 3473 (VAR_P (NODE) && DECL_NAME (NODE) && DECL_ARTIFICIAL (NODE) \ 3474 && DECL_HAS_VALUE_EXPR_P (NODE) \ 3475 && (id_equal (DECL_NAME (NODE), "__PRETTY_FUNCTION__") \ 3476 || id_equal (DECL_NAME (NODE), "__FUNCTION__") \ 3477 || id_equal (DECL_NAME (NODE), "__func__"))) 3478 3479 /* Nonzero if the variable was declared to be thread-local. 3480 We need a special C++ version of this test because the middle-end 3481 DECL_THREAD_LOCAL_P uses the symtab, so we can't use it for 3482 templates. */ 3483 #define CP_DECL_THREAD_LOCAL_P(NODE) \ 3484 (TREE_LANG_FLAG_0 (VAR_DECL_CHECK (NODE))) 3485 3486 /* The _TYPE context in which this _DECL appears. This field holds the 3487 class where a virtual function instance is actually defined. */ 3488 #define DECL_CLASS_CONTEXT(NODE) \ 3489 (DECL_CLASS_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : NULL_TREE) 3490 3491 /* For a non-member friend function, the class (if any) in which this 3492 friend was defined. For example, given: 3493 3494 struct S { friend void f () { ... } }; 3495 3496 the DECL_FRIEND_CONTEXT for `f' will be `S'. */ 3497 #define DECL_FRIEND_CONTEXT(NODE) \ 3498 ((DECL_DECLARES_FUNCTION_P (NODE) && !DECL_VIRTUAL_P (NODE) \ 3499 && !DECL_CONSTRUCTOR_P (NODE)) \ 3500 ? LANG_DECL_FN_CHECK (NODE)->context \ 3501 : NULL_TREE) 3502 3503 /* Set the DECL_FRIEND_CONTEXT for NODE to CONTEXT. */ 3504 #define SET_DECL_FRIEND_CONTEXT(NODE, CONTEXT) \ 3505 (LANG_DECL_FN_CHECK (NODE)->context = (CONTEXT)) 3506 3507 #define CP_DECL_CONTEXT(NODE) \ 3508 (!DECL_FILE_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : global_namespace) 3509 #define CP_TYPE_CONTEXT(NODE) \ 3510 (!TYPE_FILE_SCOPE_P (NODE) ? TYPE_CONTEXT (NODE) : global_namespace) 3511 #define FROB_CONTEXT(NODE) \ 3512 ((NODE) == global_namespace ? DECL_CONTEXT (NODE) : (NODE)) 3513 3514 /* 1 iff NODE has namespace scope, including the global namespace. */ 3515 #define DECL_NAMESPACE_SCOPE_P(NODE) \ 3516 (!DECL_TEMPLATE_PARM_P (NODE) \ 3517 && TREE_CODE (CP_DECL_CONTEXT (NODE)) == NAMESPACE_DECL) 3518 3519 #define TYPE_NAMESPACE_SCOPE_P(NODE) \ 3520 (TREE_CODE (CP_TYPE_CONTEXT (NODE)) == NAMESPACE_DECL) 3521 3522 #define NAMESPACE_SCOPE_P(NODE) \ 3523 ((DECL_P (NODE) && DECL_NAMESPACE_SCOPE_P (NODE)) \ 3524 || (TYPE_P (NODE) && TYPE_NAMESPACE_SCOPE_P (NODE))) 3525 3526 /* 1 iff NODE is a class member. */ 3527 #define DECL_CLASS_SCOPE_P(NODE) \ 3528 (DECL_CONTEXT (NODE) && TYPE_P (DECL_CONTEXT (NODE))) 3529 3530 #define TYPE_CLASS_SCOPE_P(NODE) \ 3531 (TYPE_CONTEXT (NODE) && TYPE_P (TYPE_CONTEXT (NODE))) 3532 3533 /* 1 iff NODE is function-local. */ 3534 #define DECL_FUNCTION_SCOPE_P(NODE) \ 3535 (DECL_CONTEXT (NODE) \ 3536 && TREE_CODE (DECL_CONTEXT (NODE)) == FUNCTION_DECL) 3537 3538 #define TYPE_FUNCTION_SCOPE_P(NODE) \ 3539 (TYPE_CONTEXT (NODE) && TREE_CODE (TYPE_CONTEXT (NODE)) == FUNCTION_DECL) 3540 3541 /* 1 iff VAR_DECL node NODE is a type-info decl. This flag is set for 3542 both the primary typeinfo object and the associated NTBS name. */ 3543 #define DECL_TINFO_P(NODE) \ 3544 TREE_LANG_FLAG_4 (TREE_CHECK2 (NODE,VAR_DECL,TYPE_DECL)) 3545 3546 /* 1 iff VAR_DECL node NODE is virtual table or VTT. We forward to 3547 DECL_VIRTUAL_P from the common code, as that has the semantics we 3548 need. But we want a more descriptive name. */ 3549 #define DECL_VTABLE_OR_VTT_P(NODE) DECL_VIRTUAL_P (VAR_DECL_CHECK (NODE)) 3550 3551 /* 1 iff FUNCTION_TYPE or METHOD_TYPE has a ref-qualifier (either & or &&). */ 3552 #define FUNCTION_REF_QUALIFIED(NODE) \ 3553 TREE_LANG_FLAG_4 (FUNC_OR_METHOD_CHECK (NODE)) 3554 3555 /* 1 iff FUNCTION_TYPE or METHOD_TYPE has &&-ref-qualifier. */ 3556 #define FUNCTION_RVALUE_QUALIFIED(NODE) \ 3557 TREE_LANG_FLAG_5 (FUNC_OR_METHOD_CHECK (NODE)) 3558 3559 /* 1 iff NODE is function-local, but for types. */ 3560 #define LOCAL_CLASS_P(NODE) \ 3561 (decl_function_context (TYPE_MAIN_DECL (NODE)) != NULL_TREE) 3562 3563 /* The nesting depth of namespace, class or function. Makes is_ancestor much 3564 simpler. Only 8 bits available. */ 3565 #define SCOPE_DEPTH(NODE) \ 3566 (NAMESPACE_DECL_CHECK (NODE)->base.u.bits.address_space) 3567 3568 /* Whether the namepace is an inline namespace. */ 3569 #define DECL_NAMESPACE_INLINE_P(NODE) \ 3570 TREE_LANG_FLAG_0 (NAMESPACE_DECL_CHECK (NODE)) 3571 3572 /* In a NAMESPACE_DECL, a vector of inline namespaces. */ 3573 #define DECL_NAMESPACE_INLINEES(NODE) \ 3574 (LANG_DECL_NS_CHECK (NODE)->inlinees) 3575 3576 /* Pointer to hash_map from IDENTIFIERS to DECLS */ 3577 #define DECL_NAMESPACE_BINDINGS(NODE) \ 3578 (LANG_DECL_NS_CHECK (NODE)->bindings) 3579 3580 /* In a NAMESPACE_DECL, points to the original namespace if this is 3581 a namespace alias. */ 3582 #define DECL_NAMESPACE_ALIAS(NODE) \ 3583 DECL_ABSTRACT_ORIGIN (NAMESPACE_DECL_CHECK (NODE)) 3584 #define ORIGINAL_NAMESPACE(NODE) \ 3585 (DECL_NAMESPACE_ALIAS (NODE) ? DECL_NAMESPACE_ALIAS (NODE) : (NODE)) 3586 3587 /* Nonzero if NODE is the std namespace. */ 3588 #define DECL_NAMESPACE_STD_P(NODE) \ 3589 ((NODE) == std_node) 3590 3591 /* In a TREE_LIST in an attribute list, indicates that the attribute 3592 must be applied at instantiation time. */ 3593 #define ATTR_IS_DEPENDENT(NODE) TREE_LANG_FLAG_0 (TREE_LIST_CHECK (NODE)) 3594 3595 /* In a TREE_LIST in the argument of attribute abi_tag, indicates that the tag 3596 was inherited from a template parameter, not explicitly indicated. */ 3597 #define ABI_TAG_IMPLICIT(NODE) TREE_LANG_FLAG_0 (TREE_LIST_CHECK (NODE)) 3598 3599 /* In a TREE_LIST for a parameter-declaration-list, indicates that all the 3600 parameters in the list have declarators enclosed in (). */ 3601 #define PARENTHESIZED_LIST_P(NODE) TREE_LANG_FLAG_0 (TREE_LIST_CHECK (NODE)) 3602 3603 /* Non zero if this is a using decl for a dependent scope. */ 3604 #define DECL_DEPENDENT_P(NODE) DECL_LANG_FLAG_0 (USING_DECL_CHECK (NODE)) 3605 3606 /* The scope named in a using decl. */ 3607 #define USING_DECL_SCOPE(NODE) DECL_RESULT_FLD (USING_DECL_CHECK (NODE)) 3608 3609 /* The decls named by a using decl. */ 3610 #define USING_DECL_DECLS(NODE) DECL_INITIAL (USING_DECL_CHECK (NODE)) 3611 3612 /* Non zero if the using decl refers to a dependent type. */ 3613 #define USING_DECL_TYPENAME_P(NODE) DECL_LANG_FLAG_1 (USING_DECL_CHECK (NODE)) 3614 3615 /* True if member using decl NODE refers to a non-inherited NODE. */ 3616 #define USING_DECL_UNRELATED_P(NODE) DECL_LANG_FLAG_2 (USING_DECL_CHECK (NODE)) 3617 3618 /* True iff the CONST_DECL is a class-scope clone from C++20 using enum, 3619 created by handle_using_decl. */ 3620 #define CONST_DECL_USING_P(NODE) \ 3621 (TREE_CODE (NODE) == CONST_DECL \ 3622 && TREE_TYPE (NODE) \ 3623 && TREE_CODE (TREE_TYPE (NODE)) == ENUMERAL_TYPE \ 3624 && DECL_CONTEXT (NODE) != TREE_TYPE (NODE)) 3625 3626 /* In a FUNCTION_DECL, this is nonzero if this function was defined in 3627 the class definition. We have saved away the text of the function, 3628 but have not yet processed it. */ 3629 #define DECL_PENDING_INLINE_P(NODE) \ 3630 (LANG_DECL_FN_CHECK (NODE)->pending_inline_p) 3631 3632 /* If DECL_PENDING_INLINE_P holds, this is the saved text of the 3633 function. */ 3634 #define DECL_PENDING_INLINE_INFO(NODE) \ 3635 (LANG_DECL_FN_CHECK (NODE)->u.pending_inline_info) 3636 3637 /* Nonzero for TYPE_DECL means that it was written 'using name = type'. */ 3638 #define TYPE_DECL_ALIAS_P(NODE) \ 3639 DECL_LANG_FLAG_6 (TYPE_DECL_CHECK (NODE)) 3640 3641 /* Nonzero for TEMPLATE_DECL means that it is a 'complex' alias template. */ 3642 #define TEMPLATE_DECL_COMPLEX_ALIAS_P(NODE) \ 3643 DECL_LANG_FLAG_2 (TEMPLATE_DECL_CHECK (NODE)) 3644 3645 /* Nonzero for a type which is an alias for another type; i.e, a type 3646 which declaration was written 'using name-of-type = 3647 another-type'. */ 3648 #define TYPE_ALIAS_P(NODE) \ 3649 (TYPE_P (NODE) \ 3650 && TYPE_NAME (NODE) \ 3651 && TREE_CODE (TYPE_NAME (NODE)) == TYPE_DECL \ 3652 && TYPE_DECL_ALIAS_P (TYPE_NAME (NODE))) 3653 3654 /* If non-NULL for a VAR_DECL, FUNCTION_DECL, TYPE_DECL, TEMPLATE_DECL, 3655 or CONCEPT_DECL, the entity is either a template specialization (if 3656 DECL_USE_TEMPLATE is nonzero) or the abstract instance of the 3657 template itself. 3658 3659 In either case, DECL_TEMPLATE_INFO is a TEMPLATE_INFO, whose 3660 TI_TEMPLATE is the TEMPLATE_DECL of which this entity is a 3661 specialization or abstract instance. The TI_ARGS is the 3662 template arguments used to specialize the template. 3663 3664 Consider: 3665 3666 template <typename T> struct S { friend void f(T) {} }; 3667 3668 In this case, S<int>::f is, from the point of view of the compiler, 3669 an instantiation of a template -- but, from the point of view of 3670 the language, each instantiation of S results in a wholly unrelated 3671 global function f. In this case, DECL_TEMPLATE_INFO for S<int>::f 3672 will be non-NULL, but DECL_USE_TEMPLATE will be zero. 3673 3674 In a friend declaration, TI_TEMPLATE can be an overload set, or 3675 identifier. */ 3676 #define DECL_TEMPLATE_INFO(NODE) \ 3677 (DECL_LANG_SPECIFIC (TEMPLATE_INFO_DECL_CHECK (NODE)) \ 3678 ->u.min.template_info) 3679 3680 /* For a lambda capture proxy, its captured variable. */ 3681 #define DECL_CAPTURED_VARIABLE(NODE) \ 3682 (LANG_DECL_MIN_CHECK (NODE)->access) 3683 3684 /* For a VAR_DECL, indicates that the variable is actually a 3685 non-static data member of anonymous union that has been promoted to 3686 variable status. */ 3687 #define DECL_ANON_UNION_VAR_P(NODE) \ 3688 (DECL_LANG_FLAG_4 (VAR_DECL_CHECK (NODE))) 3689 3690 /* Template information for a RECORD_TYPE or UNION_TYPE. */ 3691 #define CLASSTYPE_TEMPLATE_INFO(NODE) \ 3692 (TYPE_LANG_SLOT_1 (RECORD_OR_UNION_CHECK (NODE))) 3693 3694 /* Template information for a template template parameter. */ 3695 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO(NODE) \ 3696 (TYPE_LANG_SLOT_1 (BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK (NODE))) 3697 3698 /* Template information for an ENUMERAL_, RECORD_, UNION_TYPE, or 3699 BOUND_TEMPLATE_TEMPLATE_PARM type. This ignores any alias 3700 templateness of NODE. It'd be nice if this could unconditionally 3701 access the slot, rather than return NULL if given a 3702 non-templatable type. */ 3703 #define TYPE_TEMPLATE_INFO(NODE) \ 3704 (TREE_CODE (NODE) == ENUMERAL_TYPE \ 3705 || TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM \ 3706 || RECORD_OR_UNION_TYPE_P (NODE) \ 3707 ? TYPE_LANG_SLOT_1 (NODE) : NULL_TREE) 3708 3709 /* Template information (if any) for an alias type. */ 3710 #define TYPE_ALIAS_TEMPLATE_INFO(NODE) \ 3711 (DECL_LANG_SPECIFIC (TYPE_NAME (NODE)) \ 3712 ? DECL_TEMPLATE_INFO (TYPE_NAME (NODE)) \ 3713 : NULL_TREE) 3714 3715 /* If NODE is a type alias, this accessor returns the template info 3716 for the alias template (if any). Otherwise behave as 3717 TYPE_TEMPLATE_INFO. */ 3718 #define TYPE_TEMPLATE_INFO_MAYBE_ALIAS(NODE) \ 3719 (typedef_variant_p (NODE) \ 3720 ? TYPE_ALIAS_TEMPLATE_INFO (NODE) \ 3721 : TYPE_TEMPLATE_INFO (NODE)) 3722 3723 /* Set the template information for a non-alias n ENUMERAL_, RECORD_, 3724 or UNION_TYPE to VAL. ALIAS's are dealt with separately. */ 3725 #define SET_TYPE_TEMPLATE_INFO(NODE, VAL) \ 3726 (TREE_CODE (NODE) == ENUMERAL_TYPE \ 3727 || (CLASS_TYPE_P (NODE) && !TYPE_ALIAS_P (NODE)) \ 3728 ? (TYPE_LANG_SLOT_1 (NODE) = (VAL)) \ 3729 : (DECL_TEMPLATE_INFO (TYPE_NAME (NODE)) = (VAL))) \ 3730 3731 #define TI_TEMPLATE(NODE) \ 3732 ((struct tree_template_info*)TEMPLATE_INFO_CHECK (NODE))->tmpl 3733 #define TI_ARGS(NODE) \ 3734 ((struct tree_template_info*)TEMPLATE_INFO_CHECK (NODE))->args 3735 #define TI_PENDING_TEMPLATE_FLAG(NODE) \ 3736 TREE_LANG_FLAG_1 (TEMPLATE_INFO_CHECK (NODE)) 3737 /* For a given TREE_VEC containing a template argument list, 3738 this property contains the number of arguments that are not 3739 defaulted. */ 3740 #define NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) \ 3741 TREE_CHAIN (TREE_VEC_CHECK (NODE)) 3742 3743 /* Below are the setter and getter of the NON_DEFAULT_TEMPLATE_ARGS_COUNT 3744 property. */ 3745 #define SET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE, INT_VALUE) \ 3746 NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) = build_int_cst (NULL_TREE, INT_VALUE) 3747 #if CHECKING_P 3748 #define GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) \ 3749 int_cst_value (NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE)) 3750 #else 3751 #define GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) \ 3752 NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE) \ 3753 ? int_cst_value (NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE)) \ 3754 : TREE_VEC_LENGTH (INNERMOST_TEMPLATE_ARGS (NODE)) 3755 #endif 3756 3757 /* The list of access checks that were deferred during parsing 3758 which need to be performed at template instantiation time. 3759 3760 FIXME this should be associated with the TEMPLATE_DECL, not the 3761 TEMPLATE_INFO. */ 3762 #define TI_DEFERRED_ACCESS_CHECKS(NODE) \ 3763 ((struct tree_template_info*)TEMPLATE_INFO_CHECK \ 3764 (NODE))->deferred_access_checks 3765 3766 /* We use TREE_VECs to hold template arguments. If there is only one 3767 level of template arguments, then the TREE_VEC contains the 3768 arguments directly. If there is more than one level of template 3769 arguments, then each entry in the TREE_VEC is itself a TREE_VEC, 3770 containing the template arguments for a single level. The first 3771 entry in the outer TREE_VEC is the outermost level of template 3772 parameters; the last is the innermost. 3773 3774 It is incorrect to ever form a template argument vector containing 3775 only one level of arguments, but which is a TREE_VEC containing as 3776 its only entry the TREE_VEC for that level. 3777 3778 For each TREE_VEC containing the template arguments for a single 3779 level, it's possible to get or set the number of non defaulted 3780 template arguments by using the accessor macros 3781 GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT or 3782 SET_NON_DEFAULT_TEMPLATE_ARGS_COUNT. */ 3783 3784 /* Nonzero if the template arguments is actually a vector of vectors, 3785 rather than just a vector. */ 3786 #define TMPL_ARGS_HAVE_MULTIPLE_LEVELS(NODE) \ 3787 (NODE && TREE_VEC_LENGTH (NODE) && TREE_VEC_ELT (NODE, 0) \ 3788 && TREE_CODE (TREE_VEC_ELT (NODE, 0)) == TREE_VEC) 3789 3790 /* The depth of a template argument vector. When called directly by 3791 the parser, we use a TREE_LIST rather than a TREE_VEC to represent 3792 template arguments. In that case, there is only one level of template 3793 arguments. We may even see NULL_TREE if there are 0 levels of 3794 template arguments, as in cp_parser_requires_expression. */ 3795 #define TMPL_ARGS_DEPTH(NODE) \ 3796 ((NODE) == NULL_TREE ? 0 \ 3797 : TMPL_ARGS_HAVE_MULTIPLE_LEVELS (NODE) ? TREE_VEC_LENGTH (NODE) \ 3798 : 1) 3799 3800 /* The LEVELth level of the template ARGS. The outermost level of 3801 args is level 1, not level 0. */ 3802 #define TMPL_ARGS_LEVEL(ARGS, LEVEL) \ 3803 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (ARGS) \ 3804 ? TREE_VEC_ELT (ARGS, (LEVEL) - 1) : (ARGS)) 3805 3806 /* Set the LEVELth level of the template ARGS to VAL. This macro does 3807 not work with single-level argument vectors. */ 3808 #define SET_TMPL_ARGS_LEVEL(ARGS, LEVEL, VAL) \ 3809 (TREE_VEC_ELT (ARGS, (LEVEL) - 1) = (VAL)) 3810 3811 /* Accesses the IDXth parameter in the LEVELth level of the ARGS. */ 3812 #define TMPL_ARG(ARGS, LEVEL, IDX) \ 3813 (TREE_VEC_ELT (TMPL_ARGS_LEVEL (ARGS, LEVEL), IDX)) 3814 3815 /* Given a single level of template arguments in NODE, return the 3816 number of arguments. */ 3817 #define NUM_TMPL_ARGS(NODE) \ 3818 (TREE_VEC_LENGTH (NODE)) 3819 3820 /* Returns the innermost level of template arguments in ARGS. */ 3821 #define INNERMOST_TEMPLATE_ARGS(NODE) \ 3822 (get_innermost_template_args ((NODE), 1)) 3823 3824 /* The number of levels of template parameters given by NODE. */ 3825 #define TMPL_PARMS_DEPTH(NODE) \ 3826 ((HOST_WIDE_INT) TREE_INT_CST_LOW (TREE_PURPOSE (NODE))) 3827 3828 /* The TEMPLATE_DECL instantiated or specialized by NODE. This 3829 TEMPLATE_DECL will be the immediate parent, not the most general 3830 template. For example, in: 3831 3832 template <class T> struct S { template <class U> void f(U); } 3833 3834 the FUNCTION_DECL for S<int>::f<double> will have, as its 3835 DECL_TI_TEMPLATE, `template <class U> S<int>::f<U>'. 3836 3837 As a special case, for a member friend template of a template 3838 class, this value will not be a TEMPLATE_DECL, but rather an 3839 IDENTIFIER_NODE or OVERLOAD indicating the name of the template and 3840 any explicit template arguments provided. For example, in: 3841 3842 template <class T> struct S { friend void f<int>(int, double); } 3843 3844 the DECL_TI_TEMPLATE will be an IDENTIFIER_NODE for `f' and the 3845 DECL_TI_ARGS will be {int}. 3846 3847 For a FIELD_DECL with a non-static data member initializer, this value 3848 is the FIELD_DECL it was instantiated from. */ 3849 #define DECL_TI_TEMPLATE(NODE) TI_TEMPLATE (DECL_TEMPLATE_INFO (NODE)) 3850 3851 /* The template arguments used to obtain this decl from the most 3852 general form of DECL_TI_TEMPLATE. For the example given for 3853 DECL_TI_TEMPLATE, the DECL_TI_ARGS will be {int, double}. These 3854 are always the full set of arguments required to instantiate this 3855 declaration from the most general template specialized here. */ 3856 #define DECL_TI_ARGS(NODE) TI_ARGS (DECL_TEMPLATE_INFO (NODE)) 3857 3858 /* The TEMPLATE_DECL associated with NODE, a class type. Even if NODE 3859 will be generated from a partial specialization, the TEMPLATE_DECL 3860 referred to here will be the original template. For example, 3861 given: 3862 3863 template <typename T> struct S {}; 3864 template <typename T> struct S<T*> {}; 3865 3866 the CLASSTYPE_TI_TEMPLATE for S<int*> will be S, not the S<T*>. 3867 3868 For a member class template, CLASSTYPE_TI_TEMPLATE always refers to the 3869 partial instantiation rather than the primary template. CLASSTYPE_TI_ARGS 3870 are for the primary template if the partial instantiation isn't 3871 specialized, or for the explicit specialization if it is, e.g. 3872 3873 template <class T> class C { template <class U> class D; } 3874 template <> template <class U> class C<int>::D; */ 3875 #define CLASSTYPE_TI_TEMPLATE(NODE) TI_TEMPLATE (CLASSTYPE_TEMPLATE_INFO (NODE)) 3876 #define CLASSTYPE_TI_ARGS(NODE) TI_ARGS (CLASSTYPE_TEMPLATE_INFO (NODE)) 3877 3878 /* For a template instantiation TYPE, returns the TYPE corresponding 3879 to the primary template. Otherwise returns TYPE itself. */ 3880 #define CLASSTYPE_PRIMARY_TEMPLATE_TYPE(TYPE) \ 3881 ((CLASSTYPE_USE_TEMPLATE ((TYPE)) \ 3882 && !CLASSTYPE_TEMPLATE_SPECIALIZATION ((TYPE))) \ 3883 ? TREE_TYPE (DECL_TEMPLATE_RESULT (DECL_PRIMARY_TEMPLATE \ 3884 (CLASSTYPE_TI_TEMPLATE ((TYPE))))) \ 3885 : (TYPE)) 3886 3887 /* Like CLASS_TI_TEMPLATE, but also works for ENUMERAL_TYPEs. */ 3888 #define TYPE_TI_TEMPLATE(NODE) \ 3889 (TI_TEMPLATE (TYPE_TEMPLATE_INFO (NODE))) 3890 3891 /* Like DECL_TI_ARGS, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */ 3892 #define TYPE_TI_ARGS(NODE) \ 3893 (TI_ARGS (TYPE_TEMPLATE_INFO (NODE))) 3894 3895 #define INNERMOST_TEMPLATE_PARMS(NODE) TREE_VALUE (NODE) 3896 3897 /* Nonzero if NODE (a TEMPLATE_DECL) is a member template, in the 3898 sense of [temp.mem]. */ 3899 #define DECL_MEMBER_TEMPLATE_P(NODE) \ 3900 (DECL_LANG_FLAG_1 (TEMPLATE_DECL_CHECK (NODE))) 3901 3902 /* Nonzero if the NODE corresponds to the template parameters for a 3903 member template, whose inline definition is being processed after 3904 the class definition is complete. */ 3905 #define TEMPLATE_PARMS_FOR_INLINE(NODE) TREE_LANG_FLAG_1 (NODE) 3906 3907 /* Determine if a declaration (PARM_DECL or FIELD_DECL) is a pack. */ 3908 #define DECL_PACK_P(NODE) \ 3909 (DECL_P (NODE) && PACK_EXPANSION_P (TREE_TYPE (NODE))) 3910 3911 /* Determines if NODE is an expansion of one or more parameter packs, 3912 e.g., a TYPE_PACK_EXPANSION or EXPR_PACK_EXPANSION. */ 3913 #define PACK_EXPANSION_P(NODE) \ 3914 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION \ 3915 || TREE_CODE (NODE) == EXPR_PACK_EXPANSION) 3916 3917 /* Extracts the type or expression pattern from a TYPE_PACK_EXPANSION or 3918 EXPR_PACK_EXPANSION. */ 3919 #define PACK_EXPANSION_PATTERN(NODE) \ 3920 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION ? TREE_TYPE (NODE) \ 3921 : TREE_OPERAND (NODE, 0)) 3922 3923 /* Sets the type or expression pattern for a TYPE_PACK_EXPANSION or 3924 EXPR_PACK_EXPANSION. */ 3925 #define SET_PACK_EXPANSION_PATTERN(NODE,VALUE) \ 3926 if (TREE_CODE (NODE) == TYPE_PACK_EXPANSION) \ 3927 TREE_TYPE (NODE) = VALUE; \ 3928 else \ 3929 TREE_OPERAND (NODE, 0) = VALUE 3930 3931 /* The list of parameter packs used in the PACK_EXPANSION_* node. The 3932 TREE_VALUE of each TREE_LIST contains the parameter packs. */ 3933 #define PACK_EXPANSION_PARAMETER_PACKS(NODE) \ 3934 *(TREE_CODE (NODE) == EXPR_PACK_EXPANSION \ 3935 ? &TREE_OPERAND (NODE, 1) \ 3936 : &TYPE_MIN_VALUE_RAW (TYPE_PACK_EXPANSION_CHECK (NODE))) 3937 3938 /* Any additional template args to be applied when substituting into 3939 the pattern, set by tsubst_pack_expansion for partial instantiations. 3940 If this is a TREE_LIST, the TREE_VALUE of the first element is the 3941 usual template argument TREE_VEC, and the TREE_PURPOSE of later elements 3942 are enclosing functions that provided function parameter packs we'll need 3943 to map appropriately. */ 3944 #define PACK_EXPANSION_EXTRA_ARGS(NODE) \ 3945 *(TREE_CODE (NODE) == TYPE_PACK_EXPANSION \ 3946 ? &TYPE_MAX_VALUE_RAW (NODE) \ 3947 : &TREE_OPERAND ((NODE), 2)) 3948 3949 /* True iff this pack expansion is within a function context. */ 3950 #define PACK_EXPANSION_LOCAL_P(NODE) TREE_LANG_FLAG_0 (NODE) 3951 3952 /* True iff this pack expansion is for sizeof.... */ 3953 #define PACK_EXPANSION_SIZEOF_P(NODE) TREE_LANG_FLAG_1 (NODE) 3954 3955 /* True iff this pack expansion is for auto... in lambda init-capture. */ 3956 #define PACK_EXPANSION_AUTO_P(NODE) TREE_LANG_FLAG_2 (NODE) 3957 3958 /* True if we must use PACK_EXPANSION_EXTRA_ARGS and avoid partial 3959 instantiation of this pack expansion. */ 3960 #define PACK_EXPANSION_FORCE_EXTRA_ARGS_P(NODE) TREE_LANG_FLAG_3 (NODE) 3961 3962 /* True iff the wildcard can match a template parameter pack. */ 3963 #define WILDCARD_PACK_P(NODE) TREE_LANG_FLAG_0 (NODE) 3964 3965 /* Determine if this is an argument pack. */ 3966 #define ARGUMENT_PACK_P(NODE) \ 3967 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK \ 3968 || TREE_CODE (NODE) == NONTYPE_ARGUMENT_PACK) 3969 3970 /* The arguments stored in an argument pack. Arguments are stored in a 3971 TREE_VEC, which may have length zero. */ 3972 #define ARGUMENT_PACK_ARGS(NODE) \ 3973 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK? TREE_TYPE (NODE) \ 3974 : TREE_OPERAND (NODE, 0)) 3975 3976 /* Set the arguments stored in an argument pack. VALUE must be a 3977 TREE_VEC. */ 3978 #define SET_ARGUMENT_PACK_ARGS(NODE,VALUE) \ 3979 if (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK) \ 3980 TREE_TYPE (NODE) = VALUE; \ 3981 else \ 3982 TREE_OPERAND (NODE, 0) = VALUE 3983 3984 /* Whether the argument pack is "incomplete", meaning that more 3985 arguments can still be deduced. Incomplete argument packs are only 3986 used when the user has provided an explicit template argument list 3987 for a variadic function template. Some of the explicit template 3988 arguments will be placed into the beginning of the argument pack, 3989 but additional arguments might still be deduced. */ 3990 #define ARGUMENT_PACK_INCOMPLETE_P(NODE) \ 3991 TREE_ADDRESSABLE (ARGUMENT_PACK_ARGS (NODE)) 3992 3993 /* When ARGUMENT_PACK_INCOMPLETE_P, stores the explicit template 3994 arguments used to fill this pack. */ 3995 #define ARGUMENT_PACK_EXPLICIT_ARGS(NODE) \ 3996 TREE_TYPE (ARGUMENT_PACK_ARGS (NODE)) 3997 3998 /* In an ARGUMENT_PACK_SELECT, the argument pack from which an 3999 argument will be selected. */ 4000 #define ARGUMENT_PACK_SELECT_FROM_PACK(NODE) \ 4001 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->argument_pack) 4002 4003 /* In an ARGUMENT_PACK_SELECT, the index of the argument we want to 4004 select. */ 4005 #define ARGUMENT_PACK_SELECT_INDEX(NODE) \ 4006 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->index) 4007 4008 #define FOLD_EXPR_CHECK(NODE) \ 4009 TREE_CHECK4 (NODE, UNARY_LEFT_FOLD_EXPR, UNARY_RIGHT_FOLD_EXPR, \ 4010 BINARY_LEFT_FOLD_EXPR, BINARY_RIGHT_FOLD_EXPR) 4011 4012 #define BINARY_FOLD_EXPR_CHECK(NODE) \ 4013 TREE_CHECK2 (NODE, BINARY_LEFT_FOLD_EXPR, BINARY_RIGHT_FOLD_EXPR) 4014 4015 /* True if NODE is UNARY_FOLD_EXPR or a BINARY_FOLD_EXPR */ 4016 #define FOLD_EXPR_P(NODE) \ 4017 (TREE_CODE (NODE) == UNARY_LEFT_FOLD_EXPR \ 4018 || TREE_CODE (NODE) == UNARY_RIGHT_FOLD_EXPR \ 4019 || TREE_CODE (NODE) == BINARY_LEFT_FOLD_EXPR \ 4020 || TREE_CODE (NODE) == BINARY_RIGHT_FOLD_EXPR) 4021 4022 /* True when NODE is a fold over a compound assignment operator. */ 4023 #define FOLD_EXPR_MODIFY_P(NODE) \ 4024 TREE_LANG_FLAG_0 (FOLD_EXPR_CHECK (NODE)) 4025 4026 /* An INTEGER_CST containing the tree code of the folded operator. */ 4027 #define FOLD_EXPR_OP_RAW(NODE) \ 4028 TREE_OPERAND (FOLD_EXPR_CHECK (NODE), 0) 4029 4030 /* The tree code of the folded operator. */ 4031 #define FOLD_EXPR_OP(NODE) \ 4032 ((enum tree_code) TREE_INT_CST_LOW (FOLD_EXPR_OP_RAW (NODE))) 4033 4034 /* The expression containing an unexpanded parameter pack. */ 4035 #define FOLD_EXPR_PACK(NODE) \ 4036 TREE_OPERAND (FOLD_EXPR_CHECK (NODE), 1) 4037 4038 /* In a binary fold expression, the argument with no unexpanded 4039 parameter packs. */ 4040 #define FOLD_EXPR_INIT(NODE) \ 4041 TREE_OPERAND (BINARY_FOLD_EXPR_CHECK (NODE), 2) 4042 4043 /* In a FUNCTION_DECL, the saved auto-return pattern. */ 4044 #define DECL_SAVED_AUTO_RETURN_TYPE(NODE) \ 4045 (LANG_DECL_FN_CHECK (FUNCTION_DECL_CHECK (NODE)) \ 4046 ->u.saved_auto_return_type) 4047 4048 /* True if NODE is an implicit INDIRECT_REF from convert_from_reference. */ 4049 #define REFERENCE_REF_P(NODE) \ 4050 (INDIRECT_REF_P (NODE) \ 4051 && TREE_TYPE (TREE_OPERAND (NODE, 0)) \ 4052 && TYPE_REF_P (TREE_TYPE (TREE_OPERAND ((NODE), 0)))) 4053 4054 /* True iff this represents an lvalue being treated as an rvalue during return 4055 or throw as per [class.copy.elision]. */ 4056 #define IMPLICIT_RVALUE_P(NODE) \ 4057 TREE_LANG_FLAG_3 (TREE_CHECK2 ((NODE), NON_LVALUE_EXPR, STATIC_CAST_EXPR)) 4058 4059 #define NEW_EXPR_USE_GLOBAL(NODE) \ 4060 TREE_LANG_FLAG_0 (NEW_EXPR_CHECK (NODE)) 4061 #define DELETE_EXPR_USE_GLOBAL(NODE) \ 4062 TREE_LANG_FLAG_0 (DELETE_EXPR_CHECK (NODE)) 4063 #define DELETE_EXPR_USE_VEC(NODE) \ 4064 TREE_LANG_FLAG_1 (DELETE_EXPR_CHECK (NODE)) 4065 4066 #define CALL_OR_AGGR_INIT_CHECK(NODE) \ 4067 TREE_CHECK2 ((NODE), CALL_EXPR, AGGR_INIT_EXPR) 4068 4069 /* In a CALL_EXPR appearing in a template, true if Koenig lookup 4070 should be performed at instantiation time. */ 4071 #define KOENIG_LOOKUP_P(NODE) TREE_LANG_FLAG_0 (CALL_EXPR_CHECK (NODE)) 4072 4073 /* True if the arguments to NODE should be evaluated in left-to-right 4074 order regardless of PUSH_ARGS_REVERSED. */ 4075 #define CALL_EXPR_ORDERED_ARGS(NODE) \ 4076 TREE_LANG_FLAG_3 (CALL_OR_AGGR_INIT_CHECK (NODE)) 4077 4078 /* True if the arguments to NODE should be evaluated in right-to-left 4079 order regardless of PUSH_ARGS_REVERSED. */ 4080 #define CALL_EXPR_REVERSE_ARGS(NODE) \ 4081 TREE_LANG_FLAG_5 (CALL_OR_AGGR_INIT_CHECK (NODE)) 4082 4083 /* True if CALL_EXPR was written as an operator expression, not a function 4084 call. */ 4085 #define CALL_EXPR_OPERATOR_SYNTAX(NODE) \ 4086 TREE_LANG_FLAG_6 (CALL_OR_AGGR_INIT_CHECK (NODE)) 4087 4088 /* A TREE_LIST containing the result of phase 1 name lookup of the operator 4089 overloads that are pertinent to the dependent operator expression whose 4090 type is NODE. Each TREE_PURPOSE is an IDENTIFIER_NODE and TREE_VALUE is 4091 the corresponding (possibly empty) lookup result. The TREE_TYPE of the 4092 first TREE_LIST node points back to NODE. */ 4093 #define DEPENDENT_OPERATOR_TYPE_SAVED_LOOKUPS(NODE) \ 4094 TYPE_VALUES_RAW (DEPENDENT_OPERATOR_TYPE_CHECK (NODE)) 4095 4096 /* Guarded helper for the above accessor macro that takes a (templated) 4097 operator expression instead of the type thereof. */ 4098 inline tree 4099 templated_operator_saved_lookups (tree t) 4100 { 4101 tree type = TREE_TYPE (EXPR_CHECK (t)); 4102 if (type && TREE_CODE (type) == DEPENDENT_OPERATOR_TYPE) 4103 return DEPENDENT_OPERATOR_TYPE_SAVED_LOOKUPS (type); 4104 else 4105 return NULL_TREE; 4106 } 4107 4108 /* Indicates whether a string literal has been parenthesized. Such 4109 usages are disallowed in certain circumstances. */ 4110 4111 #define PAREN_STRING_LITERAL_P(NODE) \ 4112 TREE_LANG_FLAG_0 (STRING_CST_CHECK (NODE)) 4113 4114 /* Indicates whether a COMPONENT_REF or a SCOPE_REF has been parenthesized, an 4115 INDIRECT_REF comes from parenthesizing a _DECL, or a PAREN_EXPR identifies a 4116 parenthesized initializer relevant for decltype(auto). Currently only set 4117 some of the time in C++14 mode. */ 4118 4119 #define REF_PARENTHESIZED_P(NODE) \ 4120 TREE_LANG_FLAG_2 (TREE_CHECK5 ((NODE), COMPONENT_REF, INDIRECT_REF, SCOPE_REF, VIEW_CONVERT_EXPR, PAREN_EXPR)) 4121 4122 /* Nonzero if this AGGR_INIT_EXPR provides for initialization via a 4123 constructor call, rather than an ordinary function call. */ 4124 #define AGGR_INIT_VIA_CTOR_P(NODE) \ 4125 TREE_LANG_FLAG_0 (AGGR_INIT_EXPR_CHECK (NODE)) 4126 4127 /* Nonzero if expanding this AGGR_INIT_EXPR should first zero-initialize 4128 the object. */ 4129 #define AGGR_INIT_ZERO_FIRST(NODE) \ 4130 TREE_LANG_FLAG_2 (AGGR_INIT_EXPR_CHECK (NODE)) 4131 4132 /* Nonzero means that the call is the jump from a thunk to the 4133 thunked-to function. */ 4134 #define AGGR_INIT_FROM_THUNK_P(NODE) \ 4135 (AGGR_INIT_EXPR_CHECK (NODE)->base.protected_flag) 4136 4137 /* AGGR_INIT_EXPR accessors. These are equivalent to the CALL_EXPR 4138 accessors, except for AGGR_INIT_EXPR_SLOT (which takes the place of 4139 CALL_EXPR_STATIC_CHAIN). */ 4140 4141 #define AGGR_INIT_EXPR_FN(NODE) TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 1) 4142 #define AGGR_INIT_EXPR_SLOT(NODE) \ 4143 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 2) 4144 #define AGGR_INIT_EXPR_ARG(NODE, I) \ 4145 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), (I) + 3) 4146 #define aggr_init_expr_nargs(NODE) (VL_EXP_OPERAND_LENGTH(NODE) - 3) 4147 4148 /* AGGR_INIT_EXPR_ARGP returns a pointer to the argument vector for NODE. 4149 We can't use &AGGR_INIT_EXPR_ARG (NODE, 0) because that will complain if 4150 the argument count is zero when checking is enabled. Instead, do 4151 the pointer arithmetic to advance past the 3 fixed operands in a 4152 AGGR_INIT_EXPR. That produces a valid pointer to just past the end of 4153 the operand array, even if it's not valid to dereference it. */ 4154 #define AGGR_INIT_EXPR_ARGP(NODE) \ 4155 (&(TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 0)) + 3) 4156 4157 /* Abstract iterators for AGGR_INIT_EXPRs. */ 4158 4159 /* Structure containing iterator state. */ 4160 struct aggr_init_expr_arg_iterator { 4161 tree t; /* the aggr_init_expr */ 4162 int n; /* argument count */ 4163 int i; /* next argument index */ 4164 }; 4165 4166 /* Initialize the abstract argument list iterator object ITER with the 4167 arguments from AGGR_INIT_EXPR node EXP. */ 4168 inline void 4169 init_aggr_init_expr_arg_iterator (tree exp, 4170 aggr_init_expr_arg_iterator *iter) 4171 { 4172 iter->t = exp; 4173 iter->n = aggr_init_expr_nargs (exp); 4174 iter->i = 0; 4175 } 4176 4177 /* Return the next argument from abstract argument list iterator object ITER, 4178 and advance its state. Return NULL_TREE if there are no more arguments. */ 4179 inline tree 4180 next_aggr_init_expr_arg (aggr_init_expr_arg_iterator *iter) 4181 { 4182 tree result; 4183 if (iter->i >= iter->n) 4184 return NULL_TREE; 4185 result = AGGR_INIT_EXPR_ARG (iter->t, iter->i); 4186 iter->i++; 4187 return result; 4188 } 4189 4190 /* Initialize the abstract argument list iterator object ITER, then advance 4191 past and return the first argument. Useful in for expressions, e.g. 4192 for (arg = first_aggr_init_expr_arg (exp, &iter); arg; 4193 arg = next_aggr_init_expr_arg (&iter)) */ 4194 inline tree 4195 first_aggr_init_expr_arg (tree exp, aggr_init_expr_arg_iterator *iter) 4196 { 4197 init_aggr_init_expr_arg_iterator (exp, iter); 4198 return next_aggr_init_expr_arg (iter); 4199 } 4200 4201 /* Test whether there are more arguments in abstract argument list iterator 4202 ITER, without changing its state. */ 4203 inline bool 4204 more_aggr_init_expr_args_p (const aggr_init_expr_arg_iterator *iter) 4205 { 4206 return (iter->i < iter->n); 4207 } 4208 4209 /* Iterate through each argument ARG of AGGR_INIT_EXPR CALL, using variable 4210 ITER (of type aggr_init_expr_arg_iterator) to hold the iteration state. */ 4211 #define FOR_EACH_AGGR_INIT_EXPR_ARG(arg, iter, call) \ 4212 for ((arg) = first_aggr_init_expr_arg ((call), &(iter)); (arg); \ 4213 (arg) = next_aggr_init_expr_arg (&(iter))) 4214 4215 /* VEC_INIT_EXPR accessors. */ 4216 #define VEC_INIT_EXPR_SLOT(NODE) TREE_OPERAND (VEC_INIT_EXPR_CHECK (NODE), 0) 4217 #define VEC_INIT_EXPR_INIT(NODE) TREE_OPERAND (VEC_INIT_EXPR_CHECK (NODE), 1) 4218 4219 /* Indicates that a VEC_INIT_EXPR is a potential constant expression. 4220 Only set when the current function is constexpr. */ 4221 #define VEC_INIT_EXPR_IS_CONSTEXPR(NODE) \ 4222 TREE_LANG_FLAG_0 (VEC_INIT_EXPR_CHECK (NODE)) 4223 4224 /* Indicates that a VEC_INIT_EXPR is expressing value-initialization. */ 4225 #define VEC_INIT_EXPR_VALUE_INIT(NODE) \ 4226 TREE_LANG_FLAG_1 (VEC_INIT_EXPR_CHECK (NODE)) 4227 4228 /* If T is a VEC_INIT_EXPR, return it, possibly stripping a TARGET_EXPR 4229 wrapper. Otherwise, return null. */ 4230 inline tree 4231 get_vec_init_expr (tree t) 4232 { 4233 if (t && TREE_CODE (t) == TARGET_EXPR) 4234 t = TARGET_EXPR_INITIAL (t); 4235 if (t && TREE_CODE (t) == VEC_INIT_EXPR) 4236 return t; 4237 return NULL_TREE; 4238 } 4239 4240 /* The condition under which this MUST_NOT_THROW_EXPR actually blocks 4241 exceptions. NULL_TREE means 'true'. */ 4242 #define MUST_NOT_THROW_COND(NODE) \ 4243 TREE_OPERAND (MUST_NOT_THROW_EXPR_CHECK (NODE), 1) 4244 4245 /* The TYPE_MAIN_DECL for a class template type is a TYPE_DECL, not a 4246 TEMPLATE_DECL. This macro determines whether or not a given class 4247 type is really a template type, as opposed to an instantiation or 4248 specialization of one. */ 4249 #define CLASSTYPE_IS_TEMPLATE(NODE) \ 4250 (CLASSTYPE_TEMPLATE_INFO (NODE) \ 4251 && !CLASSTYPE_USE_TEMPLATE (NODE) \ 4252 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE))) 4253 4254 /* The name used by the user to name the typename type. Typically, 4255 this is an IDENTIFIER_NODE, and the same as the DECL_NAME on the 4256 corresponding TYPE_DECL. However, this may also be a 4257 TEMPLATE_ID_EXPR if we had something like `typename X::Y<T>'. */ 4258 #define TYPENAME_TYPE_FULLNAME(NODE) \ 4259 (TYPE_VALUES_RAW (TYPENAME_TYPE_CHECK (NODE))) 4260 4261 /* True if a TYPENAME_TYPE was declared as an "enum". */ 4262 #define TYPENAME_IS_ENUM_P(NODE) \ 4263 (TREE_LANG_FLAG_0 (TYPENAME_TYPE_CHECK (NODE))) 4264 4265 /* True if a TYPENAME_TYPE was declared as a "class", "struct", or 4266 "union". */ 4267 #define TYPENAME_IS_CLASS_P(NODE) \ 4268 (TREE_LANG_FLAG_1 (TYPENAME_TYPE_CHECK (NODE))) 4269 4270 /* True if a TYPENAME_TYPE is in the process of being resolved. */ 4271 #define TYPENAME_IS_RESOLVING_P(NODE) \ 4272 (TREE_LANG_FLAG_2 (TYPENAME_TYPE_CHECK (NODE))) 4273 4274 /* [class.virtual] 4275 4276 A class that declares or inherits a virtual function is called a 4277 polymorphic class. */ 4278 #define TYPE_POLYMORPHIC_P(NODE) (TREE_LANG_FLAG_2 (NODE)) 4279 4280 /* Nonzero if this class has a virtual function table pointer. */ 4281 #define TYPE_CONTAINS_VPTR_P(NODE) \ 4282 (TYPE_POLYMORPHIC_P (NODE) || CLASSTYPE_VBASECLASSES (NODE)) 4283 4284 /* Nonzero if NODE is a FUNCTION_DECL or VARIABLE_DECL (for a decl 4285 with namespace scope) declared in a local scope. */ 4286 #define DECL_LOCAL_DECL_P(NODE) \ 4287 DECL_LANG_FLAG_0 (VAR_OR_FUNCTION_DECL_CHECK (NODE)) 4288 4289 /* The namespace-scope decl a DECL_LOCAL_DECL_P aliases. */ 4290 #define DECL_LOCAL_DECL_ALIAS(NODE) \ 4291 DECL_ACCESS ((gcc_checking_assert (DECL_LOCAL_DECL_P (NODE)), NODE)) 4292 4293 /* Nonzero if NODE is the target for genericization of 'return' stmts 4294 in constructors/destructors of targetm.cxx.cdtor_returns_this targets. */ 4295 #define LABEL_DECL_CDTOR(NODE) \ 4296 DECL_LANG_FLAG_2 (LABEL_DECL_CHECK (NODE)) 4297 4298 /* True if NODE was declared with auto in its return type, but it has 4299 started compilation and so the return type might have been changed by 4300 return type deduction; its declared return type should be found in 4301 DECL_SAVED_AUTO_RETURN_TYPE (NODE). */ 4302 #define FNDECL_USED_AUTO(NODE) \ 4303 TREE_LANG_FLAG_2 (FUNCTION_DECL_CHECK (NODE)) 4304 4305 /* True if NODE is needed for a manifestly constant-evaluated expression. 4306 This doesn't especially need to be a flag, since currently it's only 4307 used for error recovery; if we run out of function flags it could move 4308 to an attribute. */ 4309 #define FNDECL_MANIFESTLY_CONST_EVALUATED(NODE) \ 4310 TREE_LANG_FLAG_4 (FUNCTION_DECL_CHECK (NODE)) 4311 4312 /* True for artificial decls added for OpenMP privatized non-static 4313 data members. */ 4314 #define DECL_OMP_PRIVATIZED_MEMBER(NODE) \ 4315 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))->u.base.anticipated_p) 4316 4317 /* Nonzero if NODE is an artificial FUNCTION_DECL for 4318 #pragma omp declare reduction. */ 4319 #define DECL_OMP_DECLARE_REDUCTION_P(NODE) \ 4320 (LANG_DECL_FN_CHECK (DECL_COMMON_CHECK (NODE))->omp_declare_reduction_p) 4321 4322 /* Nonzero if DECL has been declared threadprivate by 4323 #pragma omp threadprivate. */ 4324 #define CP_DECL_THREADPRIVATE_P(DECL) \ 4325 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (DECL))->u.base.threadprivate_or_deleted_p) 4326 4327 /* Nonzero if NODE is a VAR_DECL which has been declared inline. */ 4328 #define DECL_VAR_DECLARED_INLINE_P(NODE) \ 4329 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE)) \ 4330 ? DECL_LANG_SPECIFIC (NODE)->u.base.var_declared_inline_p \ 4331 : false) 4332 #define SET_DECL_VAR_DECLARED_INLINE_P(NODE) \ 4333 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))->u.base.var_declared_inline_p \ 4334 = true) 4335 4336 /* True if NODE is a constant variable with a value-dependent initializer. */ 4337 #define DECL_DEPENDENT_INIT_P(NODE) \ 4338 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE)) \ 4339 && DECL_LANG_SPECIFIC (NODE)->u.base.dependent_init_p) 4340 #define SET_DECL_DEPENDENT_INIT_P(NODE, X) \ 4341 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))->u.base.dependent_init_p = (X)) 4342 4343 /* Nonzero if NODE is an artificial VAR_DECL for a C++17 structured binding 4344 declaration or one of VAR_DECLs for the user identifiers in it. */ 4345 #define DECL_DECOMPOSITION_P(NODE) \ 4346 (VAR_P (NODE) && DECL_LANG_SPECIFIC (NODE) \ 4347 ? DECL_LANG_SPECIFIC (NODE)->u.base.selector == lds_decomp \ 4348 : false) 4349 4350 /* The underlying artificial VAR_DECL for structured binding. */ 4351 #define DECL_DECOMP_BASE(NODE) \ 4352 (LANG_DECL_DECOMP_CHECK (NODE)->base) 4353 4354 /* Nonzero if NODE is an inline VAR_DECL. In C++17, static data members 4355 declared with constexpr specifier are implicitly inline variables. */ 4356 #define DECL_INLINE_VAR_P(NODE) \ 4357 (DECL_VAR_DECLARED_INLINE_P (NODE) \ 4358 || (cxx_dialect >= cxx17 \ 4359 && DECL_DECLARED_CONSTEXPR_P (NODE) \ 4360 && DECL_CLASS_SCOPE_P (NODE))) 4361 4362 /* Nonzero if DECL was declared with '= delete'. */ 4363 #define DECL_DELETED_FN(DECL) \ 4364 (LANG_DECL_FN_CHECK (DECL)->min.base.threadprivate_or_deleted_p) 4365 4366 /* Nonzero if DECL was declared with '= default' (maybe implicitly). */ 4367 #define DECL_DEFAULTED_FN(DECL) \ 4368 (LANG_DECL_FN_CHECK (DECL)->defaulted_p) 4369 4370 /* Nonzero if DECL is explicitly defaulted in the class body. */ 4371 #define DECL_DEFAULTED_IN_CLASS_P(DECL) \ 4372 (DECL_DEFAULTED_FN (DECL) && DECL_INITIALIZED_IN_CLASS_P (DECL)) 4373 /* Nonzero if DECL was defaulted outside the class body. */ 4374 #define DECL_DEFAULTED_OUTSIDE_CLASS_P(DECL) \ 4375 (DECL_DEFAULTED_FN (DECL) \ 4376 && !(DECL_ARTIFICIAL (DECL) || DECL_INITIALIZED_IN_CLASS_P (DECL))) 4377 4378 /* Record whether a typedef for type `int' was actually `signed int'. */ 4379 #define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP) 4380 4381 /* Returns nonzero if DECL has external linkage, as specified by the 4382 language standard. (This predicate may hold even when the 4383 corresponding entity is not actually given external linkage in the 4384 object file; see decl_linkage for details.) */ 4385 #define DECL_EXTERNAL_LINKAGE_P(DECL) \ 4386 (decl_linkage (DECL) == lk_external) 4387 4388 /* Keep these codes in ascending code order. */ 4389 4390 #define INTEGRAL_CODE_P(CODE) \ 4391 ((CODE) == ENUMERAL_TYPE \ 4392 || (CODE) == BOOLEAN_TYPE \ 4393 || (CODE) == INTEGER_TYPE) 4394 4395 /* [basic.fundamental] 4396 4397 Types bool, char, wchar_t, and the signed and unsigned integer types 4398 are collectively called integral types. 4399 4400 Note that INTEGRAL_TYPE_P, as defined in tree.h, allows enumeration 4401 types as well, which is incorrect in C++. Keep these checks in 4402 ascending code order. */ 4403 #define CP_INTEGRAL_TYPE_P(TYPE) \ 4404 (TREE_CODE (TYPE) == BOOLEAN_TYPE \ 4405 || TREE_CODE (TYPE) == INTEGER_TYPE) 4406 4407 /* Returns true if TYPE is an integral or enumeration name. Keep 4408 these checks in ascending code order. */ 4409 #define INTEGRAL_OR_ENUMERATION_TYPE_P(TYPE) \ 4410 (TREE_CODE (TYPE) == ENUMERAL_TYPE || CP_INTEGRAL_TYPE_P (TYPE)) 4411 4412 /* Returns true if TYPE is an integral or unscoped enumeration type. */ 4413 #define INTEGRAL_OR_UNSCOPED_ENUMERATION_TYPE_P(TYPE) \ 4414 (UNSCOPED_ENUM_P (TYPE) || CP_INTEGRAL_TYPE_P (TYPE)) 4415 4416 /* True if the class type TYPE is a literal type. */ 4417 #define CLASSTYPE_LITERAL_P(TYPE) \ 4418 (LANG_TYPE_CLASS_CHECK (TYPE)->is_literal) 4419 4420 /* [basic.fundamental] 4421 4422 Integral and floating types are collectively called arithmetic 4423 types. 4424 4425 As a GNU extension, we also accept complex types. 4426 4427 Keep these checks in ascending code order. */ 4428 #define ARITHMETIC_TYPE_P(TYPE) \ 4429 (CP_INTEGRAL_TYPE_P (TYPE) \ 4430 || TREE_CODE (TYPE) == REAL_TYPE \ 4431 || TREE_CODE (TYPE) == COMPLEX_TYPE) 4432 4433 /* True iff TYPE is cv decltype(nullptr). */ 4434 #define NULLPTR_TYPE_P(TYPE) (TREE_CODE (TYPE) == NULLPTR_TYPE) 4435 4436 /* [basic.types] 4437 4438 Arithmetic types, enumeration types, pointer types, 4439 pointer-to-member types, and std::nullptr_t are collectively called 4440 scalar types. 4441 4442 Keep these checks in ascending code order. */ 4443 #define SCALAR_TYPE_P(TYPE) \ 4444 (TYPE_PTRDATAMEM_P (TYPE) \ 4445 || TREE_CODE (TYPE) == ENUMERAL_TYPE \ 4446 || ARITHMETIC_TYPE_P (TYPE) \ 4447 || TYPE_PTR_P (TYPE) \ 4448 || TYPE_PTRMEMFUNC_P (TYPE) \ 4449 || NULLPTR_TYPE_P (TYPE)) 4450 4451 /* Determines whether this type is a C++0x scoped enumeration 4452 type. Scoped enumerations types are introduced via "enum class" or 4453 "enum struct", e.g., 4454 4455 enum class Color { 4456 Red, Green, Blue 4457 }; 4458 4459 Scoped enumeration types are different from normal (unscoped) 4460 enumeration types in several ways: 4461 4462 - The enumerators of a scoped enumeration type are only available 4463 within the scope of the enumeration type and not in the 4464 enclosing scope. For example, the Red color can be referred to 4465 with "Color::Red" but not "Red". 4466 4467 - Scoped enumerators and enumerations do not implicitly convert 4468 to integers or 'bool'. 4469 4470 - The underlying type of the enum is well-defined. */ 4471 #define SCOPED_ENUM_P(TYPE) \ 4472 (TREE_CODE (TYPE) == ENUMERAL_TYPE && ENUM_IS_SCOPED (TYPE)) 4473 4474 /* Determine whether this is an unscoped enumeration type. */ 4475 #define UNSCOPED_ENUM_P(TYPE) \ 4476 (TREE_CODE (TYPE) == ENUMERAL_TYPE && !ENUM_IS_SCOPED (TYPE)) 4477 4478 /* Set the flag indicating whether an ENUMERAL_TYPE is a C++0x scoped 4479 enumeration type (1) or a normal (unscoped) enumeration type 4480 (0). */ 4481 #define SET_SCOPED_ENUM_P(TYPE, VAL) \ 4482 (ENUM_IS_SCOPED (TYPE) = (VAL)) 4483 4484 #define SET_OPAQUE_ENUM_P(TYPE, VAL) \ 4485 (ENUM_IS_OPAQUE (TYPE) = (VAL)) 4486 4487 #define OPAQUE_ENUM_P(TYPE) \ 4488 (TREE_CODE (TYPE) == ENUMERAL_TYPE && ENUM_IS_OPAQUE (TYPE)) 4489 4490 /* Determines whether an ENUMERAL_TYPE has an explicit 4491 underlying type. */ 4492 #define ENUM_FIXED_UNDERLYING_TYPE_P(NODE) (TYPE_LANG_FLAG_5 (NODE)) 4493 4494 /* Returns the underlying type of the given enumeration type. The 4495 underlying type is determined in different ways, depending on the 4496 properties of the enum: 4497 4498 - In C++0x, the underlying type can be explicitly specified, e.g., 4499 4500 enum E1 : char { ... } // underlying type is char 4501 4502 - In a C++0x scoped enumeration, the underlying type is int 4503 unless otherwises specified: 4504 4505 enum class E2 { ... } // underlying type is int 4506 4507 - Otherwise, the underlying type is determined based on the 4508 values of the enumerators. In this case, the 4509 ENUM_UNDERLYING_TYPE will not be set until after the definition 4510 of the enumeration is completed by finish_enum. */ 4511 #define ENUM_UNDERLYING_TYPE(TYPE) \ 4512 TREE_TYPE (ENUMERAL_TYPE_CHECK (TYPE)) 4513 4514 /* [dcl.init.aggr] 4515 4516 An aggregate is an array or a class with no user-provided 4517 constructors, no brace-or-equal-initializers for non-static data 4518 members, no private or protected non-static data members, no 4519 base classes, and no virtual functions. 4520 4521 As an extension, we also treat vectors as aggregates. Keep these 4522 checks in ascending code order. */ 4523 #define CP_AGGREGATE_TYPE_P(TYPE) \ 4524 (gnu_vector_type_p (TYPE) \ 4525 || TREE_CODE (TYPE) == ARRAY_TYPE \ 4526 || (CLASS_TYPE_P (TYPE) && COMPLETE_TYPE_P (TYPE) && !CLASSTYPE_NON_AGGREGATE (TYPE))) 4527 4528 /* Nonzero for a class type means that the class type has a 4529 user-declared constructor. */ 4530 #define TYPE_HAS_USER_CONSTRUCTOR(NODE) (TYPE_LANG_FLAG_1 (NODE)) 4531 4532 /* Nonzero means that the FUNCTION_TYPE or METHOD_TYPE has a 4533 late-specified return type. */ 4534 #define TYPE_HAS_LATE_RETURN_TYPE(NODE) \ 4535 (TYPE_LANG_FLAG_2 (FUNC_OR_METHOD_CHECK (NODE))) 4536 4537 /* When appearing in an INDIRECT_REF, it means that the tree structure 4538 underneath is actually a call to a constructor. This is needed 4539 when the constructor must initialize local storage (which can 4540 be automatically destroyed), rather than allowing it to allocate 4541 space from the heap. 4542 4543 When appearing in a SAVE_EXPR, it means that underneath 4544 is a call to a constructor. 4545 4546 When appearing in a CONSTRUCTOR, the expression is an unconverted 4547 compound literal. 4548 4549 When appearing in a FIELD_DECL, it means that this field 4550 has been duly initialized in its constructor. */ 4551 #define TREE_HAS_CONSTRUCTOR(NODE) (TREE_LANG_FLAG_4 (NODE)) 4552 4553 /* True if NODE is a brace-enclosed initializer. */ 4554 #define BRACE_ENCLOSED_INITIALIZER_P(NODE) \ 4555 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_TYPE (NODE) == init_list_type_node) 4556 4557 /* True if NODE is a compound-literal, i.e., a brace-enclosed 4558 initializer cast to a particular type. This is mostly only set during 4559 template parsing; once the initializer has been digested into an actual 4560 value of the type, the expression is represented by a TARGET_EXPR. */ 4561 #define COMPOUND_LITERAL_P(NODE) \ 4562 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_HAS_CONSTRUCTOR (NODE)) 4563 4564 #define EMPTY_CONSTRUCTOR_P(NODE) (TREE_CODE (NODE) == CONSTRUCTOR \ 4565 && vec_safe_is_empty(CONSTRUCTOR_ELTS(NODE))\ 4566 && !TREE_HAS_CONSTRUCTOR (NODE)) 4567 4568 /* True if NODE is a init-list used as a direct-initializer, i.e. 4569 B b{1,2}, not B b({1,2}) or B b = {1,2}. */ 4570 #define CONSTRUCTOR_IS_DIRECT_INIT(NODE) (TREE_LANG_FLAG_0 (CONSTRUCTOR_CHECK (NODE))) 4571 4572 /* True if this CONSTRUCTOR is instantiation-dependent and needs to be 4573 substituted. */ 4574 #define CONSTRUCTOR_IS_DEPENDENT(NODE) \ 4575 (TREE_LANG_FLAG_1 (CONSTRUCTOR_CHECK (NODE))) 4576 4577 /* True if this CONSTRUCTOR should not be used as a variable initializer 4578 because it was loaded from a constexpr variable with mutable fields. */ 4579 #define CONSTRUCTOR_MUTABLE_POISON(NODE) \ 4580 (TREE_LANG_FLAG_2 (CONSTRUCTOR_CHECK (NODE))) 4581 4582 /* True if this typed CONSTRUCTOR represents C99 compound-literal syntax rather 4583 than C++11 functional cast syntax. */ 4584 #define CONSTRUCTOR_C99_COMPOUND_LITERAL(NODE) \ 4585 (TREE_LANG_FLAG_3 (CONSTRUCTOR_CHECK (NODE))) 4586 4587 /* True if this CONSTRUCTOR contains PLACEHOLDER_EXPRs referencing the 4588 CONSTRUCTOR's type not nested inside another CONSTRUCTOR marked with 4589 CONSTRUCTOR_PLACEHOLDER_BOUNDARY. */ 4590 #define CONSTRUCTOR_PLACEHOLDER_BOUNDARY(NODE) \ 4591 (TREE_LANG_FLAG_5 (CONSTRUCTOR_CHECK (NODE))) 4592 4593 #define DIRECT_LIST_INIT_P(NODE) \ 4594 (BRACE_ENCLOSED_INITIALIZER_P (NODE) && CONSTRUCTOR_IS_DIRECT_INIT (NODE)) 4595 4596 /* True if this is a designated initializer (when we allow initializer-clauses 4597 mixed with designated-initializer-clauses set whenever there is at least 4598 one designated-initializer-clause), or a C99 designator. */ 4599 #define CONSTRUCTOR_IS_DESIGNATED_INIT(NODE) \ 4600 (TREE_LANG_FLAG_6 (CONSTRUCTOR_CHECK (NODE))) 4601 4602 /* True if this CONSTRUCTOR comes from a parenthesized list of values, e.g. 4603 A(1, 2, 3). */ 4604 #define CONSTRUCTOR_IS_PAREN_INIT(NODE) \ 4605 (CONSTRUCTOR_CHECK(NODE)->base.private_flag) 4606 4607 /* True if reshape_init built this sub-CONSTRUCTOR to undo the brace elision 4608 of the original CONSTRUCTOR. This flag is used during C++20 aggregate 4609 CTAD. */ 4610 #define CONSTRUCTOR_BRACES_ELIDED_P(NODE) \ 4611 (CONSTRUCTOR_CHECK (NODE)->base.protected_flag) 4612 4613 /* True if NODE represents a conversion for direct-initialization in a 4614 template. Set by perform_implicit_conversion_flags. */ 4615 #define IMPLICIT_CONV_EXPR_DIRECT_INIT(NODE) \ 4616 (TREE_LANG_FLAG_0 (IMPLICIT_CONV_EXPR_CHECK (NODE))) 4617 4618 /* True if NODE represents a dependent conversion of a non-type template 4619 argument. Set by maybe_convert_nontype_argument. */ 4620 #define IMPLICIT_CONV_EXPR_NONTYPE_ARG(NODE) \ 4621 (TREE_LANG_FLAG_1 (IMPLICIT_CONV_EXPR_CHECK (NODE))) 4622 4623 /* True if NODE represents a conversion for braced-init-list in a 4624 template. Set by perform_implicit_conversion_flags. */ 4625 #define IMPLICIT_CONV_EXPR_BRACED_INIT(NODE) \ 4626 (TREE_LANG_FLAG_2 (IMPLICIT_CONV_EXPR_CHECK (NODE))) 4627 4628 /* Nonzero means that an object of this type cannot be initialized using 4629 an initializer list. */ 4630 #define CLASSTYPE_NON_AGGREGATE(NODE) \ 4631 (LANG_TYPE_CLASS_CHECK (NODE)->non_aggregate) 4632 #define TYPE_NON_AGGREGATE_CLASS(NODE) \ 4633 (CLASS_TYPE_P (NODE) && CLASSTYPE_NON_AGGREGATE (NODE)) 4634 4635 /* Nonzero if there is a non-trivial X::op=(cv X&) for this class. */ 4636 #define TYPE_HAS_COMPLEX_COPY_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_copy_assign) 4637 4638 /* Nonzero if there is a non-trivial X::X(cv X&) for this class. */ 4639 #define TYPE_HAS_COMPLEX_COPY_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_copy_ctor) 4640 4641 /* Nonzero if there is a non-trivial X::op=(X&&) for this class. */ 4642 #define TYPE_HAS_COMPLEX_MOVE_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_move_assign) 4643 4644 /* Nonzero if there is a non-trivial X::X(X&&) for this class. */ 4645 #define TYPE_HAS_COMPLEX_MOVE_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_move_ctor) 4646 4647 /* Nonzero if there is no trivial default constructor for this class. */ 4648 #define TYPE_HAS_COMPLEX_DFLT(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_dflt) 4649 4650 /* Nonzero if TYPE has a trivial destructor. From [class.dtor]: 4651 4652 A destructor is trivial if it is an implicitly declared 4653 destructor and if: 4654 4655 - all of the direct base classes of its class have trivial 4656 destructors, 4657 4658 - for all of the non-static data members of its class that are 4659 of class type (or array thereof), each such class has a 4660 trivial destructor. */ 4661 #define TYPE_HAS_TRIVIAL_DESTRUCTOR(NODE) \ 4662 (!TYPE_HAS_NONTRIVIAL_DESTRUCTOR (NODE)) 4663 4664 /* Nonzero for _TYPE node means that this type does not have a trivial 4665 destructor. Therefore, destroying an object of this type will 4666 involve a call to a destructor. This can apply to objects of 4667 ARRAY_TYPE if the type of the elements needs a destructor. */ 4668 #define TYPE_HAS_NONTRIVIAL_DESTRUCTOR(NODE) \ 4669 (TYPE_LANG_FLAG_4 (NODE)) 4670 4671 /* Nonzero for class type means that the default constructor is trivial. */ 4672 #define TYPE_HAS_TRIVIAL_DFLT(NODE) \ 4673 (TYPE_HAS_DEFAULT_CONSTRUCTOR (NODE) && ! TYPE_HAS_COMPLEX_DFLT (NODE)) 4674 4675 /* Nonzero for class type means that copy initialization of this type can use 4676 a bitwise copy. */ 4677 #define TYPE_HAS_TRIVIAL_COPY_CTOR(NODE) \ 4678 (TYPE_HAS_COPY_CTOR (NODE) && ! TYPE_HAS_COMPLEX_COPY_CTOR (NODE)) 4679 4680 /* Nonzero for class type means that assignment of this type can use 4681 a bitwise copy. */ 4682 #define TYPE_HAS_TRIVIAL_COPY_ASSIGN(NODE) \ 4683 (TYPE_HAS_COPY_ASSIGN (NODE) && ! TYPE_HAS_COMPLEX_COPY_ASSIGN (NODE)) 4684 4685 /* Returns true if NODE is a pointer-to-data-member. */ 4686 #define TYPE_PTRDATAMEM_P(NODE) \ 4687 (TREE_CODE (NODE) == OFFSET_TYPE) 4688 4689 /* Returns true if NODE is a pointer. */ 4690 #define TYPE_PTR_P(NODE) \ 4691 (TREE_CODE (NODE) == POINTER_TYPE) 4692 4693 /* Returns true if NODE is a reference. */ 4694 #define TYPE_REF_P(NODE) \ 4695 (TREE_CODE (NODE) == REFERENCE_TYPE) 4696 4697 /* Returns true if NODE is a pointer or a reference. */ 4698 #define INDIRECT_TYPE_P(NODE) \ 4699 (TYPE_PTR_P (NODE) || TYPE_REF_P (NODE)) 4700 4701 /* Returns true if NODE is an object type: 4702 4703 [basic.types] 4704 4705 An object type is a (possibly cv-qualified) type that is not a 4706 function type, not a reference type, and not a void type. 4707 4708 Keep these checks in ascending order, for speed. */ 4709 #define TYPE_OBJ_P(NODE) \ 4710 (!TYPE_REF_P (NODE) \ 4711 && !VOID_TYPE_P (NODE) \ 4712 && !FUNC_OR_METHOD_TYPE_P (NODE)) 4713 4714 /* Returns true if NODE is a pointer to an object. Keep these checks 4715 in ascending tree code order. */ 4716 #define TYPE_PTROB_P(NODE) \ 4717 (TYPE_PTR_P (NODE) && TYPE_OBJ_P (TREE_TYPE (NODE))) 4718 4719 /* Returns true if NODE is a reference to an object. Keep these checks 4720 in ascending tree code order. */ 4721 #define TYPE_REF_OBJ_P(NODE) \ 4722 (TYPE_REF_P (NODE) && TYPE_OBJ_P (TREE_TYPE (NODE))) 4723 4724 /* Returns true if NODE is a pointer to an object, or a pointer to 4725 void. Keep these checks in ascending tree code order. */ 4726 #define TYPE_PTROBV_P(NODE) \ 4727 (TYPE_PTR_P (NODE) \ 4728 && !FUNC_OR_METHOD_TYPE_P (TREE_TYPE (NODE))) 4729 4730 /* Returns true if NODE is a pointer to function type. */ 4731 #define TYPE_PTRFN_P(NODE) \ 4732 (TYPE_PTR_P (NODE) \ 4733 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE) 4734 4735 /* Returns true if NODE is a reference to function type. */ 4736 #define TYPE_REFFN_P(NODE) \ 4737 (TYPE_REF_P (NODE) \ 4738 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE) 4739 4740 /* Returns true if NODE is a pointer to member function type. */ 4741 #define TYPE_PTRMEMFUNC_P(NODE) \ 4742 (TREE_CODE (NODE) == RECORD_TYPE \ 4743 && TYPE_PTRMEMFUNC_FLAG (NODE)) 4744 4745 #define TYPE_PTRMEMFUNC_FLAG(NODE) \ 4746 (TYPE_LANG_FLAG_2 (RECORD_TYPE_CHECK (NODE))) 4747 4748 /* Returns true if NODE is a pointer-to-member. */ 4749 #define TYPE_PTRMEM_P(NODE) \ 4750 (TYPE_PTRDATAMEM_P (NODE) || TYPE_PTRMEMFUNC_P (NODE)) 4751 4752 /* Returns true if NODE is a pointer or a pointer-to-member. */ 4753 #define TYPE_PTR_OR_PTRMEM_P(NODE) \ 4754 (TYPE_PTR_P (NODE) || TYPE_PTRMEM_P (NODE)) 4755 4756 /* Indicates when overload resolution may resolve to a pointer to 4757 member function. [expr.unary.op]/3 */ 4758 #define PTRMEM_OK_P(NODE) \ 4759 TREE_LANG_FLAG_0 (TREE_CHECK3 ((NODE), ADDR_EXPR, OFFSET_REF, SCOPE_REF)) 4760 4761 /* Get the POINTER_TYPE to the METHOD_TYPE associated with this 4762 pointer to member function. TYPE_PTRMEMFUNC_P _must_ be true, 4763 before using this macro. */ 4764 #define TYPE_PTRMEMFUNC_FN_TYPE(NODE) \ 4765 (cp_build_qualified_type (TREE_TYPE (TYPE_FIELDS (NODE)),\ 4766 cp_type_quals (NODE))) 4767 4768 /* As above, but can be used in places that want an lvalue at the expense 4769 of not necessarily having the correct cv-qualifiers. */ 4770 #define TYPE_PTRMEMFUNC_FN_TYPE_RAW(NODE) \ 4771 (TREE_TYPE (TYPE_FIELDS (NODE))) 4772 4773 /* Returns `A' for a type like `int (A::*)(double)' */ 4774 #define TYPE_PTRMEMFUNC_OBJECT_TYPE(NODE) \ 4775 TYPE_METHOD_BASETYPE (TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE))) 4776 4777 /* The canonical internal RECORD_TYPE from the POINTER_TYPE to 4778 METHOD_TYPE. */ 4779 #define TYPE_PTRMEMFUNC_TYPE(NODE) \ 4780 TYPE_LANG_SLOT_1 (NODE) 4781 4782 /* For a pointer-to-member type of the form `T X::*', this is `X'. 4783 For a type like `void (X::*)() const', this type is `X', not `const 4784 X'. To get at the `const X' you have to look at the 4785 TYPE_PTRMEM_POINTED_TO_TYPE; there, the first parameter will have 4786 type `const X*'. */ 4787 #define TYPE_PTRMEM_CLASS_TYPE(NODE) \ 4788 (TYPE_PTRDATAMEM_P (NODE) \ 4789 ? TYPE_OFFSET_BASETYPE (NODE) \ 4790 : TYPE_PTRMEMFUNC_OBJECT_TYPE (NODE)) 4791 4792 /* For a pointer-to-member type of the form `T X::*', this is `T'. */ 4793 #define TYPE_PTRMEM_POINTED_TO_TYPE(NODE) \ 4794 (TYPE_PTRDATAMEM_P (NODE) \ 4795 ? TREE_TYPE (NODE) \ 4796 : TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE))) 4797 4798 /* For a pointer-to-member constant `X::Y' this is the RECORD_TYPE for 4799 `X'. */ 4800 #define PTRMEM_CST_CLASS(NODE) \ 4801 TYPE_PTRMEM_CLASS_TYPE (TREE_TYPE (PTRMEM_CST_CHECK (NODE))) 4802 4803 /* For a pointer-to-member constant `X::Y' this is the _DECL for 4804 `Y'. */ 4805 #define PTRMEM_CST_MEMBER(NODE) \ 4806 (((ptrmem_cst_t)PTRMEM_CST_CHECK (NODE))->member) 4807 4808 /* For a pointer-to-member constant `X::Y' this is a location where 4809 the address of the member has been taken. */ 4810 #define PTRMEM_CST_LOCATION(NODE) \ 4811 (((ptrmem_cst_t)PTRMEM_CST_CHECK (NODE))->locus) 4812 4813 /* The expression in question for a TYPEOF_TYPE. */ 4814 #define TYPEOF_TYPE_EXPR(NODE) (TYPE_VALUES_RAW (TYPEOF_TYPE_CHECK (NODE))) 4815 4816 /* The type in question for an UNDERLYING_TYPE. */ 4817 #define UNDERLYING_TYPE_TYPE(NODE) \ 4818 (TYPE_VALUES_RAW (UNDERLYING_TYPE_CHECK (NODE))) 4819 4820 /* The type in question for BASES. */ 4821 #define BASES_TYPE(NODE) \ 4822 (TYPE_VALUES_RAW (BASES_CHECK (NODE))) 4823 4824 #define BASES_DIRECT(NODE) \ 4825 TREE_LANG_FLAG_0 (BASES_CHECK (NODE)) 4826 4827 /* The expression in question for a DECLTYPE_TYPE. */ 4828 #define DECLTYPE_TYPE_EXPR(NODE) (TYPE_VALUES_RAW (DECLTYPE_TYPE_CHECK (NODE))) 4829 4830 /* Whether the DECLTYPE_TYPE_EXPR of NODE was originally parsed as an 4831 id-expression or a member-access expression. When false, it was 4832 parsed as a full expression. */ 4833 #define DECLTYPE_TYPE_ID_EXPR_OR_MEMBER_ACCESS_P(NODE) \ 4834 (DECLTYPE_TYPE_CHECK (NODE))->type_common.string_flag 4835 4836 /* These flags indicate that we want different semantics from normal 4837 decltype: lambda capture just drops references, 4838 lambda proxies look through implicit dereference. */ 4839 #define DECLTYPE_FOR_LAMBDA_CAPTURE(NODE) \ 4840 TREE_LANG_FLAG_0 (DECLTYPE_TYPE_CHECK (NODE)) 4841 #define DECLTYPE_FOR_LAMBDA_PROXY(NODE) \ 4842 TREE_LANG_FLAG_2 (DECLTYPE_TYPE_CHECK (NODE)) 4843 #define DECLTYPE_FOR_REF_CAPTURE(NODE) \ 4844 TREE_LANG_FLAG_3 (DECLTYPE_TYPE_CHECK (NODE)) 4845 4846 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `extern' was 4847 specified in its declaration. This can also be set for an 4848 erroneously declared PARM_DECL. */ 4849 #define DECL_THIS_EXTERN(NODE) \ 4850 DECL_LANG_FLAG_2 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE)) 4851 4852 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `static' was 4853 specified in its declaration. This can also be set for an 4854 erroneously declared PARM_DECL. */ 4855 #define DECL_THIS_STATIC(NODE) \ 4856 DECL_LANG_FLAG_6 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE)) 4857 4858 /* Nonzero for FIELD_DECL node means that this field is a lambda capture 4859 field for an array of runtime bound. */ 4860 #define DECL_VLA_CAPTURE_P(NODE) \ 4861 DECL_LANG_FLAG_1 (FIELD_DECL_CHECK (NODE)) 4862 4863 /* Nonzero for PARM_DECL node means that this is an array function 4864 parameter, i.e, a[] rather than *a. */ 4865 #define DECL_ARRAY_PARAMETER_P(NODE) \ 4866 DECL_LANG_FLAG_1 (PARM_DECL_CHECK (NODE)) 4867 4868 /* Nonzero for a FIELD_DECL who's NSMDI is currently being 4869 instantiated. */ 4870 #define DECL_INSTANTIATING_NSDMI_P(NODE) \ 4871 DECL_LANG_FLAG_2 (FIELD_DECL_CHECK (NODE)) 4872 4873 /* Nonzero for FIELD_DECL node means that this field is a base class 4874 of the parent object, as opposed to a member field. */ 4875 #define DECL_FIELD_IS_BASE(NODE) \ 4876 DECL_LANG_FLAG_6 (FIELD_DECL_CHECK (NODE)) 4877 4878 /* Nonzero for FIELD_DECL node means that this field is a simple (no 4879 explicit initializer) lambda capture field, making it invisible to 4880 name lookup in unevaluated contexts. */ 4881 #define DECL_NORMAL_CAPTURE_P(NODE) \ 4882 DECL_LANG_FLAG_7 (FIELD_DECL_CHECK (NODE)) 4883 4884 /* Nonzero if TYPE is an anonymous union or struct type. We have to use a 4885 flag for this because "A union for which objects or pointers are 4886 declared is not an anonymous union" [class.union]. */ 4887 #define ANON_AGGR_TYPE_P(NODE) \ 4888 (CLASS_TYPE_P (NODE) && LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr) 4889 #define SET_ANON_AGGR_TYPE_P(NODE) \ 4890 (LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr = 1) 4891 4892 /* Nonzero if TYPE is an anonymous union type. */ 4893 #define ANON_UNION_TYPE_P(NODE) \ 4894 (TREE_CODE (NODE) == UNION_TYPE && ANON_AGGR_TYPE_P (NODE)) 4895 4896 /* For an ANON_AGGR_TYPE_P the single FIELD_DECL it is used with. */ 4897 #define ANON_AGGR_TYPE_FIELD(NODE) \ 4898 (LANG_TYPE_CLASS_CHECK (NODE)->typeinfo_var) 4899 4900 /* Define fields and accessors for nodes representing declared names. */ 4901 4902 /* True if TYPE is an unnamed structured type with a typedef for 4903 linkage purposes. In that case TYPE_NAME and TYPE_STUB_DECL of the 4904 MAIN-VARIANT are different. */ 4905 #define TYPE_WAS_UNNAMED(NODE) \ 4906 (TYPE_NAME (TYPE_MAIN_VARIANT (NODE)) \ 4907 != TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE))) 4908 4909 /* C++: all of these are overloaded! These apply only to TYPE_DECLs. */ 4910 4911 /* The format of each node in the DECL_FRIENDLIST is as follows: 4912 4913 The TREE_PURPOSE will be the name of a function, i.e., an 4914 IDENTIFIER_NODE. The TREE_VALUE will be itself a TREE_LIST, whose 4915 TREE_VALUEs are friends with the given name. */ 4916 #define DECL_FRIENDLIST(NODE) (DECL_INITIAL (NODE)) 4917 #define FRIEND_NAME(LIST) (TREE_PURPOSE (LIST)) 4918 #define FRIEND_DECLS(LIST) (TREE_VALUE (LIST)) 4919 4920 /* The DECL_ACCESS, if non-NULL, is a TREE_LIST. The TREE_PURPOSE of 4921 each node is a type; the TREE_VALUE is the access granted for this 4922 DECL in that type. The DECL_ACCESS is set by access declarations. 4923 For example, if a member that would normally be public in a 4924 derived class is made protected, then the derived class and the 4925 protected_access_node will appear in the DECL_ACCESS for the node. */ 4926 #define DECL_ACCESS(NODE) (LANG_DECL_MIN_CHECK (NODE)->access) 4927 4928 /* Nonzero if the FUNCTION_DECL is a global constructor. */ 4929 #define DECL_GLOBAL_CTOR_P(NODE) \ 4930 (LANG_DECL_FN_CHECK (NODE)->global_ctor_p) 4931 4932 /* Nonzero if the FUNCTION_DECL is a global destructor. */ 4933 #define DECL_GLOBAL_DTOR_P(NODE) \ 4934 (LANG_DECL_FN_CHECK (NODE)->global_dtor_p) 4935 4936 /* Accessor macros for C++ template decl nodes. */ 4937 4938 /* The DECL_TEMPLATE_PARMS are a list. The TREE_PURPOSE of each node 4939 is a INT_CST whose TREE_INT_CST_LOW indicates the level of the 4940 template parameters, with 1 being the outermost set of template 4941 parameters. The TREE_VALUE is a vector, whose elements are the 4942 template parameters at each level. Each element in the vector is a 4943 TREE_LIST, whose TREE_VALUE is a PARM_DECL (if the parameter is a 4944 non-type parameter), or a TYPE_DECL (if the parameter is a type 4945 parameter) or a TEMPLATE_DECL (if the parameter is a template 4946 parameter). The TREE_PURPOSE is the default value, if any. The 4947 TEMPLATE_PARM_INDEX for the parameter is available as the 4948 DECL_INITIAL (for a PARM_DECL) or as the TREE_TYPE (for a 4949 TYPE_DECL). 4950 4951 FIXME: CONST_CAST_TREE is a hack that hopefully will go away after 4952 tree is converted to C++ class hiearchy. */ 4953 #define DECL_TEMPLATE_PARMS(NODE) \ 4954 ((struct tree_template_decl *)CONST_CAST_TREE (TEMPLATE_DECL_CHECK (NODE)))->arguments 4955 #define DECL_INNERMOST_TEMPLATE_PARMS(NODE) \ 4956 INNERMOST_TEMPLATE_PARMS (DECL_TEMPLATE_PARMS (NODE)) 4957 #define DECL_NTPARMS(NODE) \ 4958 TREE_VEC_LENGTH (DECL_INNERMOST_TEMPLATE_PARMS (NODE)) 4959 /* For function, method, class-data templates. 4960 4961 FIXME: CONST_CAST_TREE is a hack that hopefully will go away after 4962 tree is converted to C++ class hiearchy. */ 4963 #define DECL_TEMPLATE_RESULT(NODE) \ 4964 ((struct tree_template_decl *)CONST_CAST_TREE(TEMPLATE_DECL_CHECK (NODE)))->result 4965 /* For a function template at namespace scope, DECL_TEMPLATE_INSTANTIATIONS 4966 lists all instantiations and specializations of the function so that 4967 tsubst_friend_function can reassign them to another template if we find 4968 that the namespace-scope template is really a partial instantiation of a 4969 friend template. 4970 4971 For a class template the DECL_TEMPLATE_INSTANTIATIONS lists holds 4972 all instantiations and specializations of the class type, including 4973 partial instantiations and partial specializations, so that if we 4974 explicitly specialize a partial instantiation we can walk the list 4975 in maybe_process_partial_specialization and reassign them or complain 4976 as appropriate. 4977 4978 In both cases, the TREE_PURPOSE of each node contains the arguments 4979 used; the TREE_VALUE contains the generated variable. The template 4980 arguments are always complete. For example, given: 4981 4982 template <class T> struct S1 { 4983 template <class U> struct S2 {}; 4984 template <class U> struct S2<U*> {}; 4985 }; 4986 4987 the record for the partial specialization will contain, as its 4988 argument list, { {T}, {U*} }, and will be on the 4989 DECL_TEMPLATE_INSTANTIATIONS list for `template <class T> template 4990 <class U> struct S1<T>::S2'. 4991 4992 This list is not used for other templates. */ 4993 #define DECL_TEMPLATE_INSTANTIATIONS(NODE) \ 4994 DECL_SIZE_UNIT (TEMPLATE_DECL_CHECK (NODE)) 4995 4996 /* For a class template, this list contains the partial 4997 specializations of this template. (Full specializations are not 4998 recorded on this list.) The TREE_PURPOSE holds the arguments used 4999 in the partial specialization (e.g., for `template <class T> struct 5000 S<T*, int>' this will be `T*, int'.) The arguments will also include 5001 any outer template arguments. The TREE_VALUE holds the TEMPLATE_DECL 5002 for the partial specialization. The TREE_TYPE is the _TYPE node for 5003 the partial specialization. 5004 5005 This list is not used for other templates. */ 5006 #define DECL_TEMPLATE_SPECIALIZATIONS(NODE) \ 5007 DECL_SIZE (TEMPLATE_DECL_CHECK (NODE)) 5008 5009 /* Nonzero for a DECL which is actually a template parameter. Keep 5010 these checks in ascending tree code order. */ 5011 #define DECL_TEMPLATE_PARM_P(NODE) \ 5012 (DECL_LANG_FLAG_0 (NODE) \ 5013 && (TREE_CODE (NODE) == CONST_DECL \ 5014 || TREE_CODE (NODE) == PARM_DECL \ 5015 || TREE_CODE (NODE) == TYPE_DECL \ 5016 || TREE_CODE (NODE) == TEMPLATE_DECL)) 5017 5018 /* Nonzero for a raw template parameter node. */ 5019 #define TEMPLATE_PARM_P(NODE) \ 5020 (TREE_CODE (NODE) == TEMPLATE_TYPE_PARM \ 5021 || TREE_CODE (NODE) == TEMPLATE_TEMPLATE_PARM \ 5022 || TREE_CODE (NODE) == TEMPLATE_PARM_INDEX) 5023 5024 /* Mark NODE as a template parameter. */ 5025 #define SET_DECL_TEMPLATE_PARM_P(NODE) \ 5026 (DECL_LANG_FLAG_0 (NODE) = 1) 5027 5028 /* Nonzero if NODE is a template template parameter. */ 5029 #define DECL_TEMPLATE_TEMPLATE_PARM_P(NODE) \ 5030 (TREE_CODE (NODE) == TEMPLATE_DECL && DECL_TEMPLATE_PARM_P (NODE)) 5031 5032 /* Nonzero for a DECL that represents a function template. */ 5033 #define DECL_FUNCTION_TEMPLATE_P(NODE) \ 5034 (TREE_CODE (NODE) == TEMPLATE_DECL \ 5035 && DECL_TEMPLATE_RESULT (NODE) != NULL_TREE \ 5036 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == FUNCTION_DECL) 5037 5038 /* Nonzero for a DECL that represents a class template or alias 5039 template. */ 5040 #define DECL_TYPE_TEMPLATE_P(NODE) \ 5041 (TREE_CODE (NODE) == TEMPLATE_DECL \ 5042 && DECL_TEMPLATE_RESULT (NODE) != NULL_TREE \ 5043 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == TYPE_DECL) 5044 5045 /* Nonzero for a DECL that represents a class template. */ 5046 #define DECL_CLASS_TEMPLATE_P(NODE) \ 5047 (DECL_TYPE_TEMPLATE_P (NODE) \ 5048 && DECL_IMPLICIT_TYPEDEF_P (DECL_TEMPLATE_RESULT (NODE))) 5049 5050 /* Nonzero for a TEMPLATE_DECL that represents an alias template. */ 5051 #define DECL_ALIAS_TEMPLATE_P(NODE) \ 5052 (DECL_TYPE_TEMPLATE_P (NODE) \ 5053 && !DECL_ARTIFICIAL (DECL_TEMPLATE_RESULT (NODE))) 5054 5055 /* Nonzero for a NODE which declares a type. */ 5056 #define DECL_DECLARES_TYPE_P(NODE) \ 5057 (TREE_CODE (NODE) == TYPE_DECL || DECL_TYPE_TEMPLATE_P (NODE)) 5058 5059 /* Nonzero if NODE declares a function. */ 5060 #define DECL_DECLARES_FUNCTION_P(NODE) \ 5061 (TREE_CODE (NODE) == FUNCTION_DECL || DECL_FUNCTION_TEMPLATE_P (NODE)) 5062 5063 /* Nonzero if NODE is the typedef implicitly generated for a type when 5064 the type is declared. In C++, `struct S {};' is roughly 5065 equivalent to `struct S {}; typedef struct S S;' in C. 5066 DECL_IMPLICIT_TYPEDEF_P will hold for the typedef indicated in this 5067 example. In C++, there is a second implicit typedef for each 5068 class, called the injected-class-name, in the scope of `S' itself, so that 5069 you can say `S::S'. DECL_SELF_REFERENCE_P will hold for that typedef. */ 5070 #define DECL_IMPLICIT_TYPEDEF_P(NODE) \ 5071 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_2 (NODE)) 5072 #define SET_DECL_IMPLICIT_TYPEDEF_P(NODE) \ 5073 (DECL_LANG_FLAG_2 (NODE) = 1) 5074 #define DECL_SELF_REFERENCE_P(NODE) \ 5075 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_4 (NODE)) 5076 #define SET_DECL_SELF_REFERENCE_P(NODE) \ 5077 (DECL_LANG_FLAG_4 (NODE) = 1) 5078 5079 /* A `primary' template is one that has its own template header and is not 5080 a partial specialization. A member function of a class template is a 5081 template, but not primary. A member template is primary. Friend 5082 templates are primary, too. */ 5083 5084 /* Returns the primary template corresponding to these parameters. */ 5085 #define TPARMS_PRIMARY_TEMPLATE(NODE) (TREE_TYPE (NODE)) 5086 5087 #define DECL_PRIMARY_TEMPLATE(NODE) \ 5088 (TPARMS_PRIMARY_TEMPLATE (DECL_INNERMOST_TEMPLATE_PARMS (NODE))) 5089 5090 /* Returns nonzero if NODE is a primary template. */ 5091 #define PRIMARY_TEMPLATE_P(NODE) (DECL_PRIMARY_TEMPLATE (NODE) == (NODE)) 5092 5093 /* Nonzero iff NODE is a specialization of a template. The value 5094 indicates the type of specializations: 5095 5096 1=implicit instantiation 5097 5098 2=partial or explicit specialization, e.g.: 5099 5100 template <> int min<int> (int, int), 5101 5102 3=explicit instantiation, e.g.: 5103 5104 template int min<int> (int, int); 5105 5106 Note that NODE will be marked as a specialization even if the 5107 template it is instantiating is not a primary template. For 5108 example, given: 5109 5110 template <typename T> struct O { 5111 void f(); 5112 struct I {}; 5113 }; 5114 5115 both O<int>::f and O<int>::I will be marked as instantiations. 5116 5117 If DECL_USE_TEMPLATE is nonzero, then DECL_TEMPLATE_INFO will also 5118 be non-NULL. */ 5119 #define DECL_USE_TEMPLATE(NODE) (DECL_LANG_SPECIFIC (NODE)->u.base.use_template) 5120 5121 /* Like DECL_USE_TEMPLATE, but for class types. */ 5122 #define CLASSTYPE_USE_TEMPLATE(NODE) \ 5123 (LANG_TYPE_CLASS_CHECK (NODE)->use_template) 5124 5125 /* True if NODE is a specialization of a primary template. */ 5126 #define CLASSTYPE_SPECIALIZATION_OF_PRIMARY_TEMPLATE_P(NODE) \ 5127 (CLASS_TYPE_P (NODE) \ 5128 && CLASSTYPE_USE_TEMPLATE (NODE) \ 5129 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE))) 5130 5131 #define DECL_TEMPLATE_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) & 1) 5132 #define CLASSTYPE_TEMPLATE_INSTANTIATION(NODE) \ 5133 (CLASSTYPE_USE_TEMPLATE (NODE) & 1) 5134 5135 #define DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) == 2) 5136 #define SET_DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) = 2) 5137 5138 /* Returns true for an explicit or partial specialization of a class 5139 template. */ 5140 #define CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \ 5141 (CLASSTYPE_USE_TEMPLATE (NODE) == 2) 5142 #define SET_CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \ 5143 (CLASSTYPE_USE_TEMPLATE (NODE) = 2) 5144 5145 #define DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 1) 5146 #define SET_DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 1) 5147 #define CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \ 5148 (CLASSTYPE_USE_TEMPLATE (NODE) == 1) 5149 #define SET_CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \ 5150 (CLASSTYPE_USE_TEMPLATE (NODE) = 1) 5151 5152 #define DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 3) 5153 #define SET_DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 3) 5154 #define CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \ 5155 (CLASSTYPE_USE_TEMPLATE (NODE) == 3) 5156 #define SET_CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \ 5157 (CLASSTYPE_USE_TEMPLATE (NODE) = 3) 5158 5159 /* Nonzero if DECL is a friend function which is an instantiation 5160 from the point of view of the compiler, but not from the point of 5161 view of the language. For example given: 5162 template <class T> struct S { friend void f(T) {}; }; 5163 the declaration of `void f(int)' generated when S<int> is 5164 instantiated will not be a DECL_TEMPLATE_INSTANTIATION, but will be 5165 a DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION. */ 5166 #define DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION(DECL) \ 5167 (DECL_LANG_SPECIFIC (DECL) && DECL_TEMPLATE_INFO (DECL) \ 5168 && !DECL_USE_TEMPLATE (DECL)) 5169 5170 /* Nonzero if DECL is a function generated from a function 'temploid', 5171 i.e. template, member of class template, or dependent friend. */ 5172 #define DECL_TEMPLOID_INSTANTIATION(DECL) \ 5173 (DECL_TEMPLATE_INSTANTIATION (DECL) \ 5174 || DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (DECL)) 5175 5176 /* Nonzero if DECL is either defined implicitly by the compiler or 5177 generated from a temploid. */ 5178 #define DECL_GENERATED_P(DECL) \ 5179 (DECL_TEMPLOID_INSTANTIATION (DECL) || DECL_DEFAULTED_FN (DECL)) 5180 5181 /* Nonzero iff we are currently processing a declaration for an 5182 entity with its own template parameter list, and which is not a 5183 full specialization. */ 5184 #define PROCESSING_REAL_TEMPLATE_DECL_P() \ 5185 (!processing_template_parmlist \ 5186 && current_template_depth > template_class_depth (current_scope ())) 5187 5188 /* Nonzero if this VAR_DECL or FUNCTION_DECL has already been 5189 instantiated, i.e. its definition has been generated from the 5190 pattern given in the template. */ 5191 #define DECL_TEMPLATE_INSTANTIATED(NODE) \ 5192 DECL_LANG_FLAG_1 (VAR_OR_FUNCTION_DECL_CHECK (NODE)) 5193 5194 /* We know what we're doing with this decl now. */ 5195 #define DECL_INTERFACE_KNOWN(NODE) DECL_LANG_FLAG_5 (NODE) 5196 5197 /* DECL_EXTERNAL must be set on a decl until the decl is actually emitted, 5198 so that assemble_external will work properly. So we have this flag to 5199 tell us whether the decl is really not external. 5200 5201 This flag does not indicate whether or not the decl is defined in the 5202 current translation unit; it indicates whether or not we should emit the 5203 decl at the end of compilation if it is defined and needed. */ 5204 #define DECL_NOT_REALLY_EXTERN(NODE) \ 5205 (DECL_LANG_SPECIFIC (NODE)->u.base.not_really_extern) 5206 5207 #define DECL_REALLY_EXTERN(NODE) \ 5208 (DECL_EXTERNAL (NODE) \ 5209 && (!DECL_LANG_SPECIFIC (NODE) || !DECL_NOT_REALLY_EXTERN (NODE))) 5210 5211 /* A thunk is a stub function. 5212 5213 A thunk is an alternate entry point for an ordinary FUNCTION_DECL. 5214 The address of the ordinary FUNCTION_DECL is given by the 5215 DECL_INITIAL, which is always an ADDR_EXPR whose operand is a 5216 FUNCTION_DECL. The job of the thunk is to either adjust the this 5217 pointer before transferring control to the FUNCTION_DECL, or call 5218 FUNCTION_DECL and then adjust the result value. Note, the result 5219 pointer adjusting thunk must perform a call to the thunked 5220 function, (or be implemented via passing some invisible parameter 5221 to the thunked function, which is modified to perform the 5222 adjustment just before returning). 5223 5224 A thunk may perform either, or both, of the following operations: 5225 5226 o Adjust the this or result pointer by a constant offset. 5227 o Adjust the this or result pointer by looking up a vcall or vbase offset 5228 in the vtable. 5229 5230 A this pointer adjusting thunk converts from a base to a derived 5231 class, and hence adds the offsets. A result pointer adjusting thunk 5232 converts from a derived class to a base, and hence subtracts the 5233 offsets. If both operations are performed, then the constant 5234 adjustment is performed first for this pointer adjustment and last 5235 for the result pointer adjustment. 5236 5237 The constant adjustment is given by THUNK_FIXED_OFFSET. If the 5238 vcall or vbase offset is required, THUNK_VIRTUAL_OFFSET is 5239 used. For this pointer adjusting thunks, it is the vcall offset 5240 into the vtable. For result pointer adjusting thunks it is the 5241 binfo of the virtual base to convert to. Use that binfo's vbase 5242 offset. 5243 5244 It is possible to have equivalent covariant thunks. These are 5245 distinct virtual covariant thunks whose vbase offsets happen to 5246 have the same value. THUNK_ALIAS is used to pick one as the 5247 canonical thunk, which will get all the this pointer adjusting 5248 thunks attached to it. */ 5249 5250 /* An integer indicating how many bytes should be subtracted from the 5251 this or result pointer when this function is called. */ 5252 #define THUNK_FIXED_OFFSET(DECL) \ 5253 (DECL_LANG_SPECIFIC (THUNK_FUNCTION_CHECK (DECL))->u.fn.u5.fixed_offset) 5254 5255 /* A tree indicating how to perform the virtual adjustment. For a this 5256 adjusting thunk it is the number of bytes to be added to the vtable 5257 to find the vcall offset. For a result adjusting thunk, it is the 5258 binfo of the relevant virtual base. If NULL, then there is no 5259 virtual adjust. (The vptr is always located at offset zero from 5260 the this or result pointer.) (If the covariant type is within the 5261 class hierarchy being laid out, the vbase index is not yet known 5262 at the point we need to create the thunks, hence the need to use 5263 binfos.) */ 5264 5265 #define THUNK_VIRTUAL_OFFSET(DECL) \ 5266 (LANG_DECL_MIN_CHECK (FUNCTION_DECL_CHECK (DECL))->access) 5267 5268 /* A thunk which is equivalent to another thunk. */ 5269 #define THUNK_ALIAS(DECL) \ 5270 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->u.min.template_info) 5271 5272 /* For thunk NODE, this is the FUNCTION_DECL thunked to. It is 5273 possible for the target to be a thunk too. */ 5274 #define THUNK_TARGET(NODE) \ 5275 (LANG_DECL_FN_CHECK (NODE)->befriending_classes) 5276 5277 /* True for a SCOPE_REF iff the "template" keyword was used to 5278 indicate that the qualified name denotes a template. */ 5279 #define QUALIFIED_NAME_IS_TEMPLATE(NODE) \ 5280 (TREE_LANG_FLAG_1 (SCOPE_REF_CHECK (NODE))) 5281 5282 /* [coroutines] 5283 */ 5284 5285 /* True if NODE is a co-routine FUNCTION_DECL. */ 5286 #define DECL_COROUTINE_P(NODE) \ 5287 (LANG_DECL_FN_CHECK (DECL_COMMON_CHECK (NODE))->coroutine_p) 5288 5289 /* For a FUNCTION_DECL of a coroutine, this holds the ACTOR helper function 5290 decl. */ 5291 #define DECL_ACTOR_FN(NODE) \ 5292 (coro_get_actor_function ((NODE))) 5293 5294 /* For a FUNCTION_DECL of a coroutine, this holds the DESTROY helper function 5295 decl. */ 5296 #define DECL_DESTROY_FN(NODE) \ 5297 (coro_get_destroy_function ((NODE))) 5298 5299 /* For a FUNCTION_DECL of a coroutine helper (ACTOR or DESTROY), this points 5300 back to the original (ramp) function. */ 5301 #define DECL_RAMP_FN(NODE) \ 5302 (coro_get_ramp_function (NODE)) 5303 5304 /* True for an OMP_ATOMIC that has dependent parameters. These are stored 5305 as an expr in operand 1, and integer_zero_node or clauses in operand 0. */ 5306 #define OMP_ATOMIC_DEPENDENT_P(NODE) \ 5307 (TREE_CODE (TREE_OPERAND (OMP_ATOMIC_CHECK (NODE), 0)) == INTEGER_CST \ 5308 || TREE_CODE (TREE_OPERAND (OMP_ATOMIC_CHECK (NODE), 0)) == OMP_CLAUSE) 5309 5310 /* Used while gimplifying continue statements bound to OMP_FOR nodes. */ 5311 #define OMP_FOR_GIMPLIFYING_P(NODE) \ 5312 (TREE_LANG_FLAG_0 (OMP_LOOPING_CHECK (NODE))) 5313 5314 /* A language-specific token attached to the OpenMP data clauses to 5315 hold code (or code fragments) related to ctors, dtors, and op=. 5316 See semantics.cc for details. */ 5317 #define CP_OMP_CLAUSE_INFO(NODE) \ 5318 TREE_TYPE (OMP_CLAUSE_RANGE_CHECK (NODE, OMP_CLAUSE_PRIVATE, \ 5319 OMP_CLAUSE__CONDTEMP_)) 5320 5321 /* Nonzero if this transaction expression's body contains statements. */ 5322 #define TRANSACTION_EXPR_IS_STMT(NODE) \ 5323 TREE_LANG_FLAG_0 (TRANSACTION_EXPR_CHECK (NODE)) 5324 5325 /* These macros provide convenient access to the various _STMT nodes 5326 created when parsing template declarations. */ 5327 #define TRY_STMTS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 0) 5328 #define TRY_HANDLERS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 1) 5329 5330 #define EH_SPEC_STMTS(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 0) 5331 #define EH_SPEC_RAISES(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 1) 5332 5333 #define USING_STMT_NAMESPACE(NODE) TREE_OPERAND (USING_STMT_CHECK (NODE), 0) 5334 5335 /* Nonzero if this try block is a function try block. */ 5336 #define FN_TRY_BLOCK_P(NODE) TREE_LANG_FLAG_3 (TRY_BLOCK_CHECK (NODE)) 5337 #define HANDLER_PARMS(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 0) 5338 #define HANDLER_BODY(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 1) 5339 #define HANDLER_TYPE(NODE) TREE_TYPE (HANDLER_CHECK (NODE)) 5340 5341 /* CLEANUP_STMT accessors. The statement(s) covered, the cleanup to run 5342 and the VAR_DECL for which this cleanup exists. */ 5343 #define CLEANUP_BODY(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 0) 5344 #define CLEANUP_EXPR(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 1) 5345 #define CLEANUP_DECL(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 2) 5346 5347 /* IF_STMT accessors. These give access to the condition of the if 5348 statement, the then block of the if statement, and the else block 5349 of the if statement if it exists. */ 5350 #define IF_COND(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 0) 5351 #define THEN_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 1) 5352 #define ELSE_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 2) 5353 #define IF_SCOPE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 3) 5354 #define IF_STMT_CONSTEXPR_P(NODE) TREE_LANG_FLAG_0 (IF_STMT_CHECK (NODE)) 5355 #define IF_STMT_CONSTEVAL_P(NODE) TREE_LANG_FLAG_2 (IF_STMT_CHECK (NODE)) 5356 5357 /* Like PACK_EXPANSION_EXTRA_ARGS, for constexpr if. IF_SCOPE is used while 5358 building an IF_STMT; IF_STMT_EXTRA_ARGS is used after it is complete. */ 5359 #define IF_STMT_EXTRA_ARGS(NODE) IF_SCOPE (NODE) 5360 5361 /* RANGE_FOR_STMT accessors. These give access to the declarator, 5362 expression, body, and scope of the statement, respectively. */ 5363 #define RANGE_FOR_DECL(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 0) 5364 #define RANGE_FOR_EXPR(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 1) 5365 #define RANGE_FOR_BODY(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 2) 5366 #define RANGE_FOR_SCOPE(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 3) 5367 #define RANGE_FOR_UNROLL(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 4) 5368 #define RANGE_FOR_INIT_STMT(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 5) 5369 #define RANGE_FOR_IVDEP(NODE) TREE_LANG_FLAG_6 (RANGE_FOR_STMT_CHECK (NODE)) 5370 5371 /* STMT_EXPR accessor. */ 5372 #define STMT_EXPR_STMT(NODE) TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0) 5373 5374 /* EXPR_STMT accessor. This gives the expression associated with an 5375 expression statement. */ 5376 #define EXPR_STMT_EXPR(NODE) TREE_OPERAND (EXPR_STMT_CHECK (NODE), 0) 5377 5378 /* True if this TARGET_EXPR was created by build_cplus_new, and so we can 5379 discard it if it isn't useful. */ 5380 #define TARGET_EXPR_IMPLICIT_P(NODE) \ 5381 TREE_LANG_FLAG_0 (TARGET_EXPR_CHECK (NODE)) 5382 5383 /* True if this TARGET_EXPR is the result of list-initialization of a 5384 temporary. */ 5385 #define TARGET_EXPR_LIST_INIT_P(NODE) \ 5386 TREE_LANG_FLAG_1 (TARGET_EXPR_CHECK (NODE)) 5387 5388 /* True if this TARGET_EXPR expresses direct-initialization of an object 5389 to be named later. */ 5390 #define TARGET_EXPR_DIRECT_INIT_P(NODE) \ 5391 TREE_LANG_FLAG_2 (TARGET_EXPR_CHECK (NODE)) 5392 5393 /* True if NODE is a TARGET_EXPR that just expresses a copy of its INITIAL; if 5394 the initializer has void type, it's doing something more complicated. */ 5395 #define SIMPLE_TARGET_EXPR_P(NODE) \ 5396 (TREE_CODE (NODE) == TARGET_EXPR \ 5397 && TARGET_EXPR_INITIAL (NODE) \ 5398 && !VOID_TYPE_P (TREE_TYPE (TARGET_EXPR_INITIAL (NODE)))) 5399 5400 /* True if T is a TARGET_EXPR for which we'll need to replace_decl to use it as 5401 an initializer. */ 5402 inline bool 5403 target_expr_needs_replace (tree t) 5404 { 5405 if (!t || TREE_CODE (t) != TARGET_EXPR) 5406 return false; 5407 tree init = TARGET_EXPR_INITIAL (t); 5408 if (!init || !VOID_TYPE_P (TREE_TYPE (init))) 5409 return false; 5410 while (TREE_CODE (init) == COMPOUND_EXPR) 5411 init = TREE_OPERAND (init, 1); 5412 return TREE_CODE (init) != AGGR_INIT_EXPR; 5413 } 5414 5415 /* True if EXPR expresses direct-initialization of a TYPE. */ 5416 #define DIRECT_INIT_EXPR_P(TYPE,EXPR) \ 5417 (TREE_CODE (EXPR) == TARGET_EXPR && TREE_LANG_FLAG_2 (EXPR) \ 5418 && same_type_ignoring_top_level_qualifiers_p (TYPE, TREE_TYPE (EXPR))) 5419 5420 /* True if this CONVERT_EXPR is for a conversion to virtual base in 5421 an NSDMI, and should be re-evaluated when used in a constructor. */ 5422 #define CONVERT_EXPR_VBASE_PATH(NODE) \ 5423 TREE_LANG_FLAG_0 (CONVERT_EXPR_CHECK (NODE)) 5424 5425 /* True if SIZEOF_EXPR argument is type. */ 5426 #define SIZEOF_EXPR_TYPE_P(NODE) \ 5427 TREE_LANG_FLAG_0 (SIZEOF_EXPR_CHECK (NODE)) 5428 5429 /* True if the ALIGNOF_EXPR was spelled "alignof". */ 5430 #define ALIGNOF_EXPR_STD_P(NODE) \ 5431 TREE_LANG_FLAG_0 (ALIGNOF_EXPR_CHECK (NODE)) 5432 5433 /* OMP_DEPOBJ accessors. These give access to the depobj expression of the 5434 #pragma omp depobj directive and the clauses, respectively. If 5435 OMP_DEPOBJ_CLAUSES is INTEGER_CST, it is instead the update clause kind 5436 or OMP_CLAUSE_DEPEND_LAST for destroy clause. */ 5437 #define OMP_DEPOBJ_DEPOBJ(NODE) TREE_OPERAND (OMP_DEPOBJ_CHECK (NODE), 0) 5438 #define OMP_DEPOBJ_CLAUSES(NODE) TREE_OPERAND (OMP_DEPOBJ_CHECK (NODE), 1) 5439 5440 /* An enumeration of the kind of tags that C++ accepts. */ 5441 enum tag_types { 5442 none_type = 0, /* Not a tag type. */ 5443 record_type, /* "struct" types. */ 5444 class_type, /* "class" types. */ 5445 union_type, /* "union" types. */ 5446 enum_type, /* "enum" types. */ 5447 typename_type, /* "typename" types. */ 5448 scope_type /* namespace or tagged type name followed by :: */ 5449 }; 5450 5451 /* The various kinds of lvalues we distinguish. */ 5452 enum cp_lvalue_kind_flags { 5453 clk_none = 0, /* Things that are not an lvalue. */ 5454 clk_ordinary = 1, /* An ordinary lvalue. */ 5455 clk_rvalueref = 2,/* An xvalue (rvalue formed using an rvalue reference) */ 5456 clk_class = 4, /* A prvalue of class or array type. */ 5457 clk_bitfield = 8, /* An lvalue for a bit-field. */ 5458 clk_packed = 16, /* An lvalue for a packed field. */ 5459 clk_implicit_rval = 1<<5 /* An lvalue being treated as an xvalue. */ 5460 }; 5461 5462 /* This type is used for parameters and variables which hold 5463 combinations of the flags in enum cp_lvalue_kind_flags. */ 5464 typedef int cp_lvalue_kind; 5465 5466 /* Various kinds of template specialization, instantiation, etc. */ 5467 enum tmpl_spec_kind { 5468 tsk_none, /* Not a template at all. */ 5469 tsk_invalid_member_spec, /* An explicit member template 5470 specialization, but the enclosing 5471 classes have not all been explicitly 5472 specialized. */ 5473 tsk_invalid_expl_inst, /* An explicit instantiation containing 5474 template parameter lists. */ 5475 tsk_excessive_parms, /* A template declaration with too many 5476 template parameter lists. */ 5477 tsk_insufficient_parms, /* A template declaration with too few 5478 parameter lists. */ 5479 tsk_template, /* A template declaration. */ 5480 tsk_expl_spec, /* An explicit specialization. */ 5481 tsk_expl_inst /* An explicit instantiation. */ 5482 }; 5483 5484 /* The various kinds of access. BINFO_ACCESS depends on these being 5485 two bit quantities. The numerical values are important; they are 5486 used to initialize RTTI data structures, so changing them changes 5487 the ABI. */ 5488 enum access_kind { 5489 ak_none = 0, /* Inaccessible. */ 5490 ak_public = 1, /* Accessible, as a `public' thing. */ 5491 ak_protected = 2, /* Accessible, as a `protected' thing. */ 5492 ak_private = 3 /* Accessible, as a `private' thing. */ 5493 }; 5494 5495 /* The various kinds of special functions. If you add to this list, 5496 you should update special_function_p as well. */ 5497 enum special_function_kind { 5498 sfk_none = 0, /* Not a special function. This enumeral 5499 must have value zero; see 5500 special_function_p. */ 5501 /* The following are ordered, for use by member synthesis fns. */ 5502 sfk_destructor, /* A destructor. */ 5503 sfk_constructor, /* A constructor. */ 5504 sfk_inheriting_constructor, /* An inheriting constructor */ 5505 sfk_copy_constructor, /* A copy constructor. */ 5506 sfk_move_constructor, /* A move constructor. */ 5507 sfk_copy_assignment, /* A copy assignment operator. */ 5508 sfk_move_assignment, /* A move assignment operator. */ 5509 /* The following are unordered. */ 5510 sfk_complete_destructor, /* A destructor for complete objects. */ 5511 sfk_base_destructor, /* A destructor for base subobjects. */ 5512 sfk_deleting_destructor, /* A destructor for complete objects that 5513 deletes the object after it has been 5514 destroyed. */ 5515 sfk_conversion, /* A conversion operator. */ 5516 sfk_deduction_guide, /* A class template deduction guide. */ 5517 sfk_comparison, /* A comparison operator (e.g. ==, <, <=>). */ 5518 sfk_virtual_destructor /* Used by member synthesis fns. */ 5519 }; 5520 5521 /* The various kinds of linkage. From [basic.link], 5522 5523 A name is said to have linkage when it might denote the same 5524 object, reference, function, type, template, namespace or value 5525 as a name introduced in another scope: 5526 5527 -- When a name has external linkage, the entity it denotes can 5528 be referred to from scopes of other translation units or from 5529 other scopes of the same translation unit. 5530 5531 -- When a name has internal linkage, the entity it denotes can 5532 be referred to by names from other scopes in the same 5533 translation unit. 5534 5535 -- When a name has no linkage, the entity it denotes cannot be 5536 referred to by names from other scopes. */ 5537 5538 enum linkage_kind { 5539 lk_none, /* No linkage. */ 5540 lk_internal, /* Internal linkage. */ 5541 lk_external /* External linkage. */ 5542 }; 5543 5544 enum duration_kind { 5545 dk_static, 5546 dk_thread, 5547 dk_auto, 5548 dk_dynamic 5549 }; 5550 5551 /* Bitmask flags to control type substitution. */ 5552 enum tsubst_flags { 5553 tf_none = 0, /* nothing special */ 5554 tf_error = 1 << 0, /* give error messages */ 5555 tf_warning = 1 << 1, /* give warnings too */ 5556 tf_ignore_bad_quals = 1 << 2, /* ignore bad cvr qualifiers */ 5557 tf_keep_type_decl = 1 << 3, /* retain typedef type decls 5558 (make_typename_type use) */ 5559 tf_ptrmem_ok = 1 << 4, /* pointers to member ok (internal 5560 instantiate_type use) */ 5561 tf_user = 1 << 5, /* found template must be a user template 5562 (lookup_template_class use) */ 5563 tf_conv = 1 << 6, /* We are determining what kind of 5564 conversion might be permissible, 5565 not actually performing the 5566 conversion. */ 5567 tf_decltype = 1 << 7, /* We are the operand of decltype. 5568 Used to implement the special rules 5569 for calls in decltype (5.2.2/11). */ 5570 tf_partial = 1 << 8, /* Doing initial explicit argument 5571 substitution in fn_type_unification. */ 5572 tf_fndecl_type = 1 << 9, /* Substituting the type of a function 5573 declaration. */ 5574 tf_no_cleanup = 1 << 10, /* Do not build a cleanup 5575 (build_target_expr and friends) */ 5576 tf_norm = 1 << 11, /* Build diagnostic information during 5577 constraint normalization. */ 5578 tf_tst_ok = 1 << 12, /* Allow a typename-specifier to name 5579 a template (C++17 or later). */ 5580 tf_dguide = 1 << 13, /* Building a deduction guide from a ctor. */ 5581 /* Convenient substitution flags combinations. */ 5582 tf_warning_or_error = tf_warning | tf_error 5583 }; 5584 5585 /* This type is used for parameters and variables which hold 5586 combinations of the flags in enum tsubst_flags. */ 5587 typedef int tsubst_flags_t; 5588 5589 /* The kind of checking we can do looking in a class hierarchy. */ 5590 enum base_access_flags { 5591 ba_any = 0, /* Do not check access, allow an ambiguous base, 5592 prefer a non-virtual base */ 5593 ba_unique = 1 << 0, /* Must be a unique base. */ 5594 ba_check_bit = 1 << 1, /* Check access. */ 5595 ba_check = ba_unique | ba_check_bit, 5596 ba_ignore_scope = 1 << 2 /* Ignore access allowed by local scope. */ 5597 }; 5598 5599 /* This type is used for parameters and variables which hold 5600 combinations of the flags in enum base_access_flags. */ 5601 typedef int base_access; 5602 5603 /* The various kinds of access check during parsing. */ 5604 enum deferring_kind { 5605 dk_no_deferred = 0, /* Check access immediately */ 5606 dk_deferred = 1, /* Deferred check */ 5607 dk_no_check = 2 /* No access check */ 5608 }; 5609 5610 /* The kind of base we can find, looking in a class hierarchy. 5611 Values <0 indicate we failed. */ 5612 enum base_kind { 5613 bk_inaccessible = -3, /* The base is inaccessible */ 5614 bk_ambig = -2, /* The base is ambiguous */ 5615 bk_not_base = -1, /* It is not a base */ 5616 bk_same_type = 0, /* It is the same type */ 5617 bk_proper_base = 1, /* It is a proper base */ 5618 bk_via_virtual = 2 /* It is a proper base, but via a virtual 5619 path. This might not be the canonical 5620 binfo. */ 5621 }; 5622 5623 /* Node for "pointer to (virtual) function". 5624 This may be distinct from ptr_type_node so gdb can distinguish them. */ 5625 #define vfunc_ptr_type_node vtable_entry_type 5626 5627 5628 /* For building calls to `delete'. */ 5629 extern GTY(()) tree integer_two_node; 5630 5631 /* The number of function bodies which we are currently processing. 5632 (Zero if we are at namespace scope, one inside the body of a 5633 function, two inside the body of a function in a local class, etc.) */ 5634 extern int function_depth; 5635 5636 /* Nonzero if we are inside spec_hasher::equal, which affects 5637 comparison of PARM_DECLs in cp_tree_equal. */ 5638 extern int comparing_specializations; 5639 5640 /* Nonzero if we want different dependent aliases to compare as unequal. 5641 FIXME we should always do this except during deduction/ordering. */ 5642 extern int comparing_dependent_aliases; 5643 5644 /* In parser.cc. */ 5645 5646 /* Nonzero if we are parsing an unevaluated operand: an operand to 5647 sizeof, typeof, or alignof. This is a count since operands to 5648 sizeof can be nested. */ 5649 5650 extern int cp_unevaluated_operand; 5651 5652 /* RAII class used to inhibit the evaluation of operands during parsing 5653 and template instantiation. Evaluation warnings are also inhibited. */ 5654 5655 class cp_unevaluated 5656 { 5657 public: 5658 cp_unevaluated (); 5659 ~cp_unevaluated (); 5660 }; 5661 5662 /* The reverse: an RAII class used for nested contexts that are evaluated even 5663 if the enclosing context is not. */ 5664 5665 class cp_evaluated 5666 { 5667 public: 5668 int uneval; 5669 int inhibit; 5670 cp_evaluated (bool reset = true) 5671 : uneval(cp_unevaluated_operand), inhibit(c_inhibit_evaluation_warnings) 5672 { if (reset) 5673 cp_unevaluated_operand = c_inhibit_evaluation_warnings = 0; } 5674 ~cp_evaluated () 5675 { cp_unevaluated_operand = uneval; 5676 c_inhibit_evaluation_warnings = inhibit; } 5677 }; 5678 5679 /* in pt.cc */ 5680 5681 /* These values are used for the `STRICT' parameter to type_unification and 5682 fn_type_unification. Their meanings are described with the 5683 documentation for fn_type_unification. */ 5684 5685 enum unification_kind_t { 5686 DEDUCE_CALL, 5687 DEDUCE_CONV, 5688 DEDUCE_EXACT 5689 }; 5690 5691 // An RAII class used to create a new pointer map for local 5692 // specializations. When the stack goes out of scope, the 5693 // previous pointer map is restored. 5694 enum lss_policy { lss_blank, lss_copy, lss_nop }; 5695 class local_specialization_stack 5696 { 5697 public: 5698 local_specialization_stack (lss_policy = lss_blank); 5699 ~local_specialization_stack (); 5700 5701 hash_map<tree, tree> *saved; 5702 }; 5703 5704 /* Entry in the specialization hash table. */ 5705 struct GTY((for_user)) spec_entry 5706 { 5707 tree tmpl; /* The general template this is a specialization of. */ 5708 tree args; /* The args for this (maybe-partial) specialization. */ 5709 tree spec; /* The specialization itself. */ 5710 }; 5711 5712 /* in class.cc */ 5713 5714 extern int current_class_depth; 5715 5716 /* in decl.cc */ 5717 5718 /* An array of static vars & fns. */ 5719 extern GTY(()) vec<tree, va_gc> *static_decls; 5720 5721 /* An array of vtable-needing types that have no key function, or have 5722 an emitted key function. */ 5723 extern GTY(()) vec<tree, va_gc> *keyed_classes; 5724 5725 /* Here's where we control how name mangling takes place. */ 5727 5728 /* Cannot use '$' up front, because this confuses gdb 5729 (names beginning with '$' are gdb-local identifiers). 5730 5731 Note that all forms in which the '$' is significant are long enough 5732 for direct indexing (meaning that if we know there is a '$' 5733 at a particular location, we can index into the string at 5734 any other location that provides distinguishing characters). */ 5735 5736 /* Define NO_DOT_IN_LABEL in your favorite tm file if your assembler 5737 doesn't allow '.' in symbol names. */ 5738 #ifndef NO_DOT_IN_LABEL 5739 5740 #define JOINER '.' 5741 #define JOIN_STR "." 5742 5743 #define AUTO_TEMP_NAME "_.tmp_" 5744 #define VFIELD_BASE ".vf" 5745 #define VFIELD_NAME "_vptr." 5746 #define VFIELD_NAME_FORMAT "_vptr.%s" 5747 5748 #else /* NO_DOT_IN_LABEL */ 5749 5750 #ifndef NO_DOLLAR_IN_LABEL 5751 5752 #define JOINER '$' 5753 #define JOIN_STR "$" 5754 5755 #define AUTO_TEMP_NAME "_$tmp_" 5756 #define VFIELD_BASE "$vf" 5757 #define VFIELD_NAME "_vptr$" 5758 #define VFIELD_NAME_FORMAT "_vptr$%s" 5759 5760 #else /* NO_DOLLAR_IN_LABEL */ 5761 5762 #define JOIN_STR "_" 5763 5764 #define VTABLE_NAME "__vt_" 5765 #define VTABLE_NAME_P(ID_NODE) \ 5766 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VTABLE_NAME, \ 5767 sizeof (VTABLE_NAME) - 1)) 5768 #define VFIELD_BASE "__vfb" 5769 #define VFIELD_NAME "__vptr_" 5770 #define VFIELD_NAME_P(ID_NODE) \ 5771 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, \ 5772 sizeof (VFIELD_NAME) - 1)) 5773 #define VFIELD_NAME_FORMAT "__vptr_%s" 5774 5775 #endif /* NO_DOLLAR_IN_LABEL */ 5776 #endif /* NO_DOT_IN_LABEL */ 5777 5778 #define UDLIT_OP_ANSI_PREFIX "operator\"\"" 5779 #define UDLIT_OP_ANSI_FORMAT UDLIT_OP_ANSI_PREFIX "%s" 5780 #define UDLIT_OP_MANGLED_PREFIX "li" 5781 #define UDLIT_OP_MANGLED_FORMAT UDLIT_OP_MANGLED_PREFIX "%s" 5782 #define UDLIT_OPER_P(ID_NODE) \ 5783 (!strncmp (IDENTIFIER_POINTER (ID_NODE), \ 5784 UDLIT_OP_ANSI_PREFIX, \ 5785 sizeof (UDLIT_OP_ANSI_PREFIX) - 1)) 5786 #define UDLIT_OP_SUFFIX(ID_NODE) \ 5787 (IDENTIFIER_POINTER (ID_NODE) + sizeof (UDLIT_OP_ANSI_PREFIX) - 1) 5788 5789 #if !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) 5790 5791 #define VTABLE_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == 'v' \ 5792 && IDENTIFIER_POINTER (ID_NODE)[2] == 't' \ 5793 && IDENTIFIER_POINTER (ID_NODE)[3] == JOINER) 5794 5795 #define VFIELD_NAME_P(ID_NODE) \ 5796 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, sizeof(VFIELD_NAME)-1)) 5797 5798 #endif /* !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) */ 5799 5800 5801 /* Nonzero if we're done parsing and into end-of-file activities. 5803 Two if we're done with front-end processing. */ 5804 5805 extern int at_eof; 5806 5807 /* True if note_mangling_alias should enqueue mangling aliases for 5808 later generation, rather than emitting them right away. */ 5809 5810 extern bool defer_mangling_aliases; 5811 5812 /* True if noexcept is part of the type (i.e. in C++17). */ 5813 5814 extern bool flag_noexcept_type; 5815 5816 /* A list of namespace-scope objects which have constructors or 5817 destructors which reside in the global scope. The decl is stored 5818 in the TREE_VALUE slot and the initializer is stored in the 5819 TREE_PURPOSE slot. */ 5820 extern GTY(()) tree static_aggregates; 5821 /* Likewise, for thread local storage. */ 5822 extern GTY(()) tree tls_aggregates; 5823 5824 /* A hash-map mapping from variable decls to the dynamic initializer for 5825 the decl. This is currently only used by OpenMP. */ 5826 extern GTY(()) decl_tree_map *dynamic_initializers; 5827 5828 enum overload_flags { NO_SPECIAL = 0, DTOR_FLAG, TYPENAME_FLAG }; 5829 5830 /* These are uses as bits in flags passed to various functions to 5831 control their behavior. Despite the LOOKUP_ prefix, many of these 5832 do not control name lookup. ??? Functions using these flags should 5833 probably be modified to accept explicit boolean flags for the 5834 behaviors relevant to them. */ 5835 /* Check for access violations. */ 5836 #define LOOKUP_PROTECT (1 << 0) 5837 #define LOOKUP_NORMAL (LOOKUP_PROTECT) 5838 /* Even if the function found by lookup is a virtual function, it 5839 should be called directly. */ 5840 #define LOOKUP_NONVIRTUAL (1 << 1) 5841 /* Non-converting (i.e., "explicit") constructors are not tried. This flag 5842 indicates that we are not performing direct-initialization. */ 5843 #define LOOKUP_ONLYCONVERTING (1 << 2) 5844 #define LOOKUP_IMPLICIT (LOOKUP_NORMAL | LOOKUP_ONLYCONVERTING) 5845 /* If a temporary is created, it should be created so that it lives 5846 as long as the current variable bindings; otherwise it only lives 5847 until the end of the complete-expression. It also forces 5848 direct-initialization in cases where other parts of the compiler 5849 have already generated a temporary, such as reference 5850 initialization and the catch parameter. */ 5851 #define DIRECT_BIND (1 << 3) 5852 /* We're performing a user-defined conversion, so more user-defined 5853 conversions are not permitted (only built-in conversions). */ 5854 #define LOOKUP_NO_CONVERSION (1 << 4) 5855 /* The user has explicitly called a destructor. (Therefore, we do 5856 not need to check that the object is non-NULL before calling the 5857 destructor.) */ 5858 #define LOOKUP_DESTRUCTOR (1 << 5) 5859 /* Do not permit references to bind to temporaries. */ 5860 #define LOOKUP_NO_TEMP_BIND (1 << 6) 5861 /* We're trying to treat an lvalue as an rvalue. */ 5862 /* FIXME remove when we extend the P1825 semantics to all standard modes, the 5863 C++20 approach uses IMPLICIT_RVALUE_P instead. */ 5864 #define LOOKUP_PREFER_RVALUE (LOOKUP_NO_TEMP_BIND << 1) 5865 /* We're inside an init-list, so narrowing conversions are ill-formed. */ 5866 #define LOOKUP_NO_NARROWING (LOOKUP_PREFER_RVALUE << 1) 5867 /* We're looking up a constructor for list-initialization. */ 5868 #define LOOKUP_LIST_INIT_CTOR (LOOKUP_NO_NARROWING << 1) 5869 /* This is the first parameter of a copy constructor. */ 5870 #define LOOKUP_COPY_PARM (LOOKUP_LIST_INIT_CTOR << 1) 5871 /* We only want to consider list constructors. */ 5872 #define LOOKUP_LIST_ONLY (LOOKUP_COPY_PARM << 1) 5873 /* Return after determining which function to call and checking access. 5874 Used by sythesized_method_walk to determine which functions will 5875 be called to initialize subobjects, in order to determine exception 5876 specification and possible implicit delete. 5877 This is kind of a hack, but exiting early avoids problems with trying 5878 to perform argument conversions when the class isn't complete yet. */ 5879 #define LOOKUP_SPECULATIVE (LOOKUP_LIST_ONLY << 1) 5880 /* Used by calls from defaulted functions to limit the overload set to avoid 5881 cycles trying to declare them (core issue 1092). */ 5882 #define LOOKUP_DEFAULTED (LOOKUP_SPECULATIVE << 1) 5883 /* Used in calls to store_init_value to suppress its usual call to 5884 digest_init. */ 5885 #define LOOKUP_ALREADY_DIGESTED (LOOKUP_DEFAULTED << 1) 5886 /* Like LOOKUP_NO_TEMP_BIND, but also prevent binding to xvalues. */ 5887 #define LOOKUP_NO_RVAL_BIND (LOOKUP_ALREADY_DIGESTED << 1) 5888 /* Used by case_conversion to disregard non-integral conversions. */ 5889 #define LOOKUP_NO_NON_INTEGRAL (LOOKUP_NO_RVAL_BIND << 1) 5890 /* Used for delegating constructors in order to diagnose self-delegation. */ 5891 #define LOOKUP_DELEGATING_CONS (LOOKUP_NO_NON_INTEGRAL << 1) 5892 /* Allow initialization of a flexible array members. */ 5893 #define LOOKUP_ALLOW_FLEXARRAY_INIT (LOOKUP_DELEGATING_CONS << 1) 5894 /* We're looking for either a rewritten comparison operator candidate or the 5895 operator to use on the former's result. We distinguish between the two by 5896 knowing that comparisons other than == and <=> must be the latter, as must 5897 a <=> expression trying to rewrite to <=> without reversing. */ 5898 #define LOOKUP_REWRITTEN (LOOKUP_ALLOW_FLEXARRAY_INIT << 1) 5899 /* Reverse the order of the two arguments for comparison rewriting. First we 5900 swap the arguments in add_operator_candidates, then we swap the conversions 5901 in add_candidate (so that they correspond to the original order of the 5902 args), then we swap the conversions back in build_new_op_1 (so they 5903 correspond to the order of the args in the candidate). */ 5904 #define LOOKUP_REVERSED (LOOKUP_REWRITTEN << 1) 5905 /* We're initializing an aggregate from a parenthesized list of values. */ 5906 #define LOOKUP_AGGREGATE_PAREN_INIT (LOOKUP_REVERSED << 1) 5907 5908 /* These flags are used by the conversion code. 5909 CONV_IMPLICIT : Perform implicit conversions (standard and user-defined). 5910 CONV_STATIC : Perform the explicit conversions for static_cast. 5911 CONV_CONST : Perform the explicit conversions for const_cast. 5912 CONV_REINTERPRET: Perform the explicit conversions for reinterpret_cast. 5913 CONV_PRIVATE : Perform upcasts to private bases. 5914 CONV_FORCE_TEMP : Require a new temporary when converting to the same 5915 aggregate type. */ 5916 5917 #define CONV_IMPLICIT 1 5918 #define CONV_STATIC 2 5919 #define CONV_CONST 4 5920 #define CONV_REINTERPRET 8 5921 #define CONV_PRIVATE 16 5922 #define CONV_FORCE_TEMP 32 5923 #define CONV_FOLD 64 5924 #define CONV_OLD_CONVERT (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \ 5925 | CONV_REINTERPRET) 5926 #define CONV_C_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \ 5927 | CONV_REINTERPRET | CONV_PRIVATE | CONV_FORCE_TEMP) 5928 #define CONV_BACKEND_CONVERT (CONV_OLD_CONVERT | CONV_FOLD) 5929 5930 /* Used by build_expr_type_conversion to indicate which types are 5931 acceptable as arguments to the expression under consideration. */ 5932 5933 #define WANT_INT 1 /* integer types, including bool */ 5934 #define WANT_FLOAT 2 /* floating point types */ 5935 #define WANT_ENUM 4 /* enumerated types */ 5936 #define WANT_POINTER 8 /* pointer types */ 5937 #define WANT_NULL 16 /* null pointer constant */ 5938 #define WANT_VECTOR_OR_COMPLEX 32 /* vector or complex types */ 5939 #define WANT_ARITH (WANT_INT | WANT_FLOAT | WANT_VECTOR_OR_COMPLEX) 5940 5941 /* Used with comptypes, and related functions, to guide type 5942 comparison. */ 5943 5944 #define COMPARE_STRICT 0 /* Just check if the types are the 5945 same. */ 5946 #define COMPARE_BASE 1 /* Check to see if the second type is 5947 derived from the first. */ 5948 #define COMPARE_DERIVED 2 /* Like COMPARE_BASE, but in 5949 reverse. */ 5950 #define COMPARE_REDECLARATION 4 /* The comparison is being done when 5951 another declaration of an existing 5952 entity is seen. */ 5953 #define COMPARE_STRUCTURAL 8 /* The comparison is intended to be 5954 structural. The actual comparison 5955 will be identical to 5956 COMPARE_STRICT. */ 5957 5958 /* Used with start function. */ 5959 #define SF_DEFAULT 0 /* No flags. */ 5960 #define SF_PRE_PARSED 1 /* The function declaration has 5961 already been parsed. */ 5962 #define SF_INCLASS_INLINE 2 /* The function is an inline, defined 5963 in the class body. */ 5964 5965 /* Used with start_decl's initialized parameter. */ 5966 #define SD_UNINITIALIZED 0 5967 #define SD_INITIALIZED 1 5968 /* Like SD_INITIALIZED, but also mark the new decl as DECL_DECOMPOSITION_P. */ 5969 #define SD_DECOMPOSITION 2 5970 #define SD_DEFAULTED 3 5971 #define SD_DELETED 4 5972 5973 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, or if TYPE2 5974 is derived from TYPE1, or if TYPE2 is a pointer (reference) to a 5975 class derived from the type pointed to (referred to) by TYPE1. */ 5976 #define same_or_base_type_p(TYPE1, TYPE2) \ 5977 comptypes ((TYPE1), (TYPE2), COMPARE_BASE) 5978 5979 /* These macros are used to access a TEMPLATE_PARM_INDEX. */ 5980 #define TEMPLATE_PARM_INDEX_CAST(NODE) \ 5981 ((template_parm_index*)TEMPLATE_PARM_INDEX_CHECK (NODE)) 5982 #define TEMPLATE_PARM_IDX(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->index) 5983 #define TEMPLATE_PARM_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->level) 5984 #define TEMPLATE_PARM_DESCENDANTS(NODE) (TREE_CHAIN (NODE)) 5985 #define TEMPLATE_PARM_ORIG_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->orig_level) 5986 #define TEMPLATE_PARM_DECL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->decl) 5987 #define TEMPLATE_PARM_PARAMETER_PACK(NODE) \ 5988 (TREE_LANG_FLAG_0 (TEMPLATE_PARM_INDEX_CHECK (NODE))) 5989 5990 /* These macros are for accessing the fields of TEMPLATE_TYPE_PARM, 5991 TEMPLATE_TEMPLATE_PARM and BOUND_TEMPLATE_TEMPLATE_PARM nodes. */ 5992 #define TEMPLATE_TYPE_PARM_INDEX(NODE) \ 5993 (TYPE_VALUES_RAW (TREE_CHECK3 ((NODE), TEMPLATE_TYPE_PARM, \ 5994 TEMPLATE_TEMPLATE_PARM, \ 5995 BOUND_TEMPLATE_TEMPLATE_PARM))) 5996 #define TEMPLATE_TYPE_IDX(NODE) \ 5997 (TEMPLATE_PARM_IDX (TEMPLATE_TYPE_PARM_INDEX (NODE))) 5998 #define TEMPLATE_TYPE_LEVEL(NODE) \ 5999 (TEMPLATE_PARM_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE))) 6000 #define TEMPLATE_TYPE_ORIG_LEVEL(NODE) \ 6001 (TEMPLATE_PARM_ORIG_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE))) 6002 #define TEMPLATE_TYPE_DECL(NODE) \ 6003 (TEMPLATE_PARM_DECL (TEMPLATE_TYPE_PARM_INDEX (NODE))) 6004 #define TEMPLATE_TYPE_PARAMETER_PACK(NODE) \ 6005 (TEMPLATE_PARM_PARAMETER_PACK (TEMPLATE_TYPE_PARM_INDEX (NODE))) 6006 6007 /* For a C++17 class deduction placeholder, the template it represents. */ 6008 #define CLASS_PLACEHOLDER_TEMPLATE(NODE) \ 6009 (DECL_INITIAL (TYPE_NAME (TEMPLATE_TYPE_PARM_CHECK (NODE)))) 6010 6011 /* Contexts in which auto deduction occurs. These flags are 6012 used to control diagnostics in do_auto_deduction. */ 6013 6014 enum auto_deduction_context 6015 { 6016 adc_unspecified, /* Not given */ 6017 adc_variable_type, /* Variable initializer deduction */ 6018 adc_return_type, /* Return type deduction */ 6019 adc_unify, /* Template argument deduction */ 6020 adc_requirement, /* Argument deduction constraint */ 6021 adc_decomp_type /* Decomposition declaration initializer deduction */ 6022 }; 6023 6024 /* True iff this TEMPLATE_TYPE_PARM represents decltype(auto). */ 6025 #define AUTO_IS_DECLTYPE(NODE) \ 6026 (TYPE_LANG_FLAG_5 (TEMPLATE_TYPE_PARM_CHECK (NODE))) 6027 6028 /* These constants can used as bit flags in the process of tree formatting. 6029 6030 TFF_PLAIN_IDENTIFIER: unqualified part of a name. 6031 TFF_SCOPE: include the class and namespace scope of the name. 6032 TFF_CHASE_TYPEDEF: print the original type-id instead of the typedef-name. 6033 TFF_DECL_SPECIFIERS: print decl-specifiers. 6034 TFF_CLASS_KEY_OR_ENUM: precede a class-type name (resp. enum name) with 6035 a class-key (resp. `enum'). 6036 TFF_RETURN_TYPE: include function return type. 6037 TFF_FUNCTION_DEFAULT_ARGUMENTS: include function default parameter values. 6038 TFF_EXCEPTION_SPECIFICATION: show function exception specification. 6039 TFF_TEMPLATE_HEADER: show the template<...> header in a 6040 template-declaration. 6041 TFF_TEMPLATE_NAME: show only template-name. 6042 TFF_EXPR_IN_PARENS: parenthesize expressions. 6043 TFF_NO_FUNCTION_ARGUMENTS: don't show function arguments. 6044 TFF_UNQUALIFIED_NAME: do not print the qualifying scope of the 6045 top-level entity. 6046 TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS: do not omit template arguments 6047 identical to their defaults. 6048 TFF_NO_TEMPLATE_BINDINGS: do not print information about the template 6049 arguments for a function template specialization. 6050 TFF_POINTER: we are printing a pointer type. */ 6051 6052 #define TFF_PLAIN_IDENTIFIER (0) 6053 #define TFF_SCOPE (1) 6054 #define TFF_CHASE_TYPEDEF (1 << 1) 6055 #define TFF_DECL_SPECIFIERS (1 << 2) 6056 #define TFF_CLASS_KEY_OR_ENUM (1 << 3) 6057 #define TFF_RETURN_TYPE (1 << 4) 6058 #define TFF_FUNCTION_DEFAULT_ARGUMENTS (1 << 5) 6059 #define TFF_EXCEPTION_SPECIFICATION (1 << 6) 6060 #define TFF_TEMPLATE_HEADER (1 << 7) 6061 #define TFF_TEMPLATE_NAME (1 << 8) 6062 #define TFF_EXPR_IN_PARENS (1 << 9) 6063 #define TFF_NO_FUNCTION_ARGUMENTS (1 << 10) 6064 #define TFF_UNQUALIFIED_NAME (1 << 11) 6065 #define TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS (1 << 12) 6066 #define TFF_NO_TEMPLATE_BINDINGS (1 << 13) 6067 #define TFF_POINTER (1 << 14) 6068 6069 /* These constants can be used as bit flags to control strip_typedefs. 6070 6071 STF_USER_VISIBLE: use heuristics to try to avoid stripping user-facing 6072 aliases of internal details. This is intended for diagnostics, 6073 where it should (for example) give more useful "aka" types. 6074 6075 STF_STRIP_DEPENDENT: allow the stripping of aliases with dependent 6076 template parameters, relying on code elsewhere to report any 6077 appropriate diagnostics. */ 6078 const unsigned int STF_USER_VISIBLE = 1U; 6079 const unsigned int STF_STRIP_DEPENDENT = 1U << 1; 6080 6081 /* Returns the TEMPLATE_DECL associated to a TEMPLATE_TEMPLATE_PARM 6082 node. */ 6083 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_DECL(NODE) \ 6084 ((TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM) \ 6085 ? TYPE_TI_TEMPLATE (NODE) \ 6086 : TYPE_NAME (NODE)) 6087 6088 /* in lex.cc */ 6089 6090 extern void init_reswords (void); 6091 6092 /* Various flags for the overloaded operator information. */ 6093 enum ovl_op_flags { 6094 OVL_OP_FLAG_NONE = 0, /* Don't care. */ 6095 OVL_OP_FLAG_UNARY = 1, /* Is unary. */ 6096 OVL_OP_FLAG_BINARY = 2, /* Is binary. */ 6097 OVL_OP_FLAG_AMBIARY = 3, /* May be unary or binary. */ 6098 OVL_OP_FLAG_ALLOC = 4, /* operator new or delete. */ 6099 OVL_OP_FLAG_DELETE = 1, /* operator delete. */ 6100 OVL_OP_FLAG_VEC = 2 /* vector new or delete. */ 6101 }; 6102 6103 /* Compressed operator codes. Order is determined by operators.def 6104 and does not match that of tree_codes. */ 6105 enum ovl_op_code { 6106 OVL_OP_ERROR_MARK, 6107 OVL_OP_NOP_EXPR, 6108 #define DEF_OPERATOR(NAME, CODE, MANGLING, FLAGS) OVL_OP_##CODE, 6109 #define DEF_ASSN_OPERATOR(NAME, CODE, MANGLING) /* NOTHING */ 6110 #include "operators.def" 6111 OVL_OP_MAX 6112 }; 6113 6114 /* Make sure it fits in lang_decl_fn::ovl_op_code. */ 6115 STATIC_ASSERT (OVL_OP_MAX < (1 << 6)); 6116 6117 struct GTY(()) ovl_op_info_t { 6118 /* The IDENTIFIER_NODE for the operator. */ 6119 tree identifier; 6120 /* The name of the operator. */ 6121 const char *name; 6122 /* The mangled name of the operator. */ 6123 const char *mangled_name; 6124 /* The (regular) tree code. */ 6125 enum tree_code tree_code : 16; 6126 /* The (compressed) operator code. */ 6127 enum ovl_op_code ovl_op_code : 8; 6128 /* The ovl_op_flags of the operator */ 6129 unsigned flags : 8; 6130 }; 6131 6132 /* Overloaded operator info indexed by ass_op_p & ovl_op_code. */ 6133 extern GTY(()) ovl_op_info_t ovl_op_info[2][OVL_OP_MAX]; 6134 /* Mapping from tree_codes to ovl_op_codes. */ 6135 extern GTY(()) unsigned char ovl_op_mapping[MAX_TREE_CODES]; 6136 /* Mapping for ambi-ary operators from the binary to the unary. */ 6137 extern GTY(()) unsigned char ovl_op_alternate[OVL_OP_MAX]; 6138 6139 /* Given an ass_op_p boolean and a tree code, return a pointer to its 6140 overloaded operator info. Tree codes for non-overloaded operators 6141 map to the error-operator. */ 6142 #define OVL_OP_INFO(IS_ASS_P, TREE_CODE) \ 6143 (&ovl_op_info[(IS_ASS_P) != 0][ovl_op_mapping[(TREE_CODE)]]) 6144 /* Overloaded operator info for an identifier for which 6145 IDENTIFIER_OVL_OP_P is true. */ 6146 #define IDENTIFIER_OVL_OP_INFO(NODE) \ 6147 (&ovl_op_info[IDENTIFIER_KIND_BIT_0 (NODE)][IDENTIFIER_CP_INDEX (NODE)]) 6148 #define IDENTIFIER_OVL_OP_FLAGS(NODE) \ 6149 (IDENTIFIER_OVL_OP_INFO (NODE)->flags) 6150 6151 inline tree ovl_op_identifier (bool isass, tree_code code) 6152 { return OVL_OP_INFO(isass, code)->identifier; } 6153 inline tree ovl_op_identifier (tree_code code) { return ovl_op_identifier (false, code); } 6154 #define assign_op_identifier (ovl_op_info[true][OVL_OP_NOP_EXPR].identifier) 6155 #define call_op_identifier (ovl_op_info[false][OVL_OP_CALL_EXPR].identifier) 6156 6157 /* A type-qualifier, or bitmask therefore, using the TYPE_QUAL 6158 constants. */ 6159 6160 typedef int cp_cv_quals; 6161 6162 /* Non-static member functions have an optional virt-specifier-seq. 6163 There is a VIRT_SPEC value for each virt-specifier. 6164 They can be combined by bitwise-or to form the complete set of 6165 virt-specifiers for a member function. */ 6166 enum virt_specifier 6167 { 6168 VIRT_SPEC_UNSPECIFIED = 0x0, 6169 VIRT_SPEC_FINAL = 0x1, 6170 VIRT_SPEC_OVERRIDE = 0x2 6171 }; 6172 6173 /* A type-qualifier, or bitmask therefore, using the VIRT_SPEC 6174 constants. */ 6175 6176 typedef int cp_virt_specifiers; 6177 6178 /* Wherever there is a function-cv-qual, there could also be a ref-qualifier: 6179 6180 [dcl.fct] 6181 The return type, the parameter-type-list, the ref-qualifier, and 6182 the cv-qualifier-seq, but not the default arguments or the exception 6183 specification, are part of the function type. 6184 6185 REF_QUAL_NONE Ordinary member function with no ref-qualifier 6186 REF_QUAL_LVALUE Member function with the &-ref-qualifier 6187 REF_QUAL_RVALUE Member function with the &&-ref-qualifier */ 6188 6189 enum cp_ref_qualifier { 6190 REF_QUAL_NONE = 0, 6191 REF_QUAL_LVALUE = 1, 6192 REF_QUAL_RVALUE = 2 6193 }; 6194 6195 /* A storage class. */ 6196 6197 enum cp_storage_class { 6198 /* sc_none must be zero so that zeroing a cp_decl_specifier_seq 6199 sets the storage_class field to sc_none. */ 6200 sc_none = 0, 6201 sc_auto, 6202 sc_register, 6203 sc_static, 6204 sc_extern, 6205 sc_mutable 6206 }; 6207 6208 /* An individual decl-specifier. This is used to index the array of 6209 locations for the declspecs in struct cp_decl_specifier_seq 6210 below. */ 6211 6212 enum cp_decl_spec { 6213 ds_first, 6214 ds_signed = ds_first, 6215 ds_unsigned, 6216 ds_short, 6217 ds_long, 6218 ds_const, 6219 ds_volatile, 6220 ds_restrict, 6221 ds_inline, 6222 ds_virtual, 6223 ds_explicit, 6224 ds_friend, 6225 ds_typedef, 6226 ds_alias, 6227 ds_constexpr, 6228 ds_complex, 6229 ds_constinit, 6230 ds_consteval, 6231 ds_thread, 6232 ds_type_spec, 6233 ds_redefined_builtin_type_spec, 6234 ds_attribute, 6235 ds_std_attribute, 6236 ds_storage_class, 6237 ds_long_long, 6238 ds_concept, 6239 ds_last /* This enumerator must always be the last one. */ 6240 }; 6241 6242 /* A decl-specifier-seq. */ 6243 6244 struct cp_decl_specifier_seq { 6245 /* An array of locations for the declaration sepecifiers, indexed by 6246 enum cp_decl_spec_word. */ 6247 location_t locations[ds_last]; 6248 /* The primary type, if any, given by the decl-specifier-seq. 6249 Modifiers, like "short", "const", and "unsigned" are not 6250 reflected here. This field will be a TYPE, unless a typedef-name 6251 was used, in which case it will be a TYPE_DECL. */ 6252 tree type; 6253 /* The attributes, if any, provided with the specifier sequence. */ 6254 tree attributes; 6255 /* The c++11 attributes that follows the type specifier. */ 6256 tree std_attributes; 6257 /* If non-NULL, a built-in type that the user attempted to redefine 6258 to some other type. */ 6259 tree redefined_builtin_type; 6260 /* The explicit-specifier, if any. */ 6261 tree explicit_specifier; 6262 /* The storage class specified -- or sc_none if no storage class was 6263 explicitly specified. */ 6264 cp_storage_class storage_class; 6265 /* For the __intN declspec, this stores the index into the int_n_* arrays. */ 6266 int int_n_idx; 6267 /* True iff TYPE_SPEC defines a class or enum. */ 6268 BOOL_BITFIELD type_definition_p : 1; 6269 /* True iff multiple types were (erroneously) specified for this 6270 decl-specifier-seq. */ 6271 BOOL_BITFIELD multiple_types_p : 1; 6272 /* True iff multiple storage classes were (erroneously) specified 6273 for this decl-specifier-seq or a combination of a storage class 6274 with a typedef specifier. */ 6275 BOOL_BITFIELD conflicting_specifiers_p : 1; 6276 /* True iff at least one decl-specifier was found. */ 6277 BOOL_BITFIELD any_specifiers_p : 1; 6278 /* True iff at least one type-specifier was found. */ 6279 BOOL_BITFIELD any_type_specifiers_p : 1; 6280 /* True iff "int" was explicitly provided. */ 6281 BOOL_BITFIELD explicit_int_p : 1; 6282 /* True iff "__intN" was explicitly provided. */ 6283 BOOL_BITFIELD explicit_intN_p : 1; 6284 /* True iff "char" was explicitly provided. */ 6285 BOOL_BITFIELD explicit_char_p : 1; 6286 /* True iff ds_thread is set for __thread, not thread_local. */ 6287 BOOL_BITFIELD gnu_thread_keyword_p : 1; 6288 /* True iff the type is a decltype. */ 6289 BOOL_BITFIELD decltype_p : 1; 6290 /* True iff the alternate "__intN__" form of the __intN type has been 6291 used. */ 6292 BOOL_BITFIELD int_n_alt: 1; 6293 }; 6294 6295 /* The various kinds of declarators. */ 6296 6297 enum cp_declarator_kind { 6298 cdk_id, 6299 cdk_function, 6300 cdk_array, 6301 cdk_pointer, 6302 cdk_reference, 6303 cdk_ptrmem, 6304 cdk_decomp, 6305 cdk_error 6306 }; 6307 6308 /* A declarator. */ 6309 6310 typedef struct cp_declarator cp_declarator; 6311 6312 typedef struct cp_parameter_declarator cp_parameter_declarator; 6313 6314 /* A parameter, before it has been semantically analyzed. */ 6315 struct cp_parameter_declarator { 6316 /* The next parameter, or NULL_TREE if none. */ 6317 cp_parameter_declarator *next; 6318 /* The decl-specifiers-seq for the parameter. */ 6319 cp_decl_specifier_seq decl_specifiers; 6320 /* The declarator for the parameter. */ 6321 cp_declarator *declarator; 6322 /* The default-argument expression, or NULL_TREE, if none. */ 6323 tree default_argument; 6324 /* True iff this is a template parameter pack. */ 6325 bool template_parameter_pack_p; 6326 /* Location within source. */ 6327 location_t loc; 6328 }; 6329 6330 /* A declarator. */ 6331 struct cp_declarator { 6332 /* The kind of declarator. */ 6333 ENUM_BITFIELD (cp_declarator_kind) kind : 4; 6334 /* Whether we parsed an ellipsis (`...') just before the declarator, 6335 to indicate this is a parameter pack. */ 6336 BOOL_BITFIELD parameter_pack_p : 1; 6337 /* If this declarator is parenthesized, this the open-paren. It is 6338 UNKNOWN_LOCATION when not parenthesized. */ 6339 location_t parenthesized; 6340 /* Currently only set for cdk_id, cdk_decomp and cdk_function. */ 6341 location_t id_loc; 6342 /* If this declarator is part of an init-declarator, the location of the 6343 initializer. */ 6344 location_t init_loc; 6345 /* GNU Attributes that apply to this declarator. If the declarator 6346 is a pointer or a reference, these attribute apply to the type 6347 pointed to. */ 6348 tree attributes; 6349 /* Standard C++11 attributes that apply to this declarator. If the 6350 declarator is a pointer or a reference, these attributes apply 6351 to the pointer, rather than to the type pointed to. */ 6352 tree std_attributes; 6353 /* For all but cdk_id, cdk_decomp and cdk_error, the contained declarator. 6354 For cdk_id, cdk_decomp and cdk_error, guaranteed to be NULL. */ 6355 cp_declarator *declarator; 6356 union { 6357 /* For identifiers. */ 6358 struct { 6359 /* If non-NULL, the qualifying scope (a NAMESPACE_DECL or 6360 *_TYPE) for this identifier. */ 6361 tree qualifying_scope; 6362 /* The unqualified name of the entity -- an IDENTIFIER_NODE, 6363 BIT_NOT_EXPR, or TEMPLATE_ID_EXPR. */ 6364 tree unqualified_name; 6365 /* If this is the name of a function, what kind of special 6366 function (if any). */ 6367 special_function_kind sfk; 6368 } id; 6369 /* For functions. */ 6370 struct { 6371 /* The parameters to the function as a TREE_LIST of decl/default. */ 6372 tree parameters; 6373 /* The cv-qualifiers for the function. */ 6374 cp_cv_quals qualifiers; 6375 /* The virt-specifiers for the function. */ 6376 cp_virt_specifiers virt_specifiers; 6377 /* The ref-qualifier for the function. */ 6378 cp_ref_qualifier ref_qualifier; 6379 /* The transaction-safety qualifier for the function. */ 6380 tree tx_qualifier; 6381 /* The exception-specification for the function. */ 6382 tree exception_specification; 6383 /* The late-specified return type, if any. */ 6384 tree late_return_type; 6385 /* The trailing requires-clause, if any. */ 6386 tree requires_clause; 6387 location_t parens_loc; 6388 } function; 6389 /* For arrays. */ 6390 struct { 6391 /* The bounds to the array. */ 6392 tree bounds; 6393 } array; 6394 /* For cdk_pointer and cdk_ptrmem. */ 6395 struct { 6396 /* The cv-qualifiers for the pointer. */ 6397 cp_cv_quals qualifiers; 6398 /* For cdk_ptrmem, the class type containing the member. */ 6399 tree class_type; 6400 } pointer; 6401 /* For cdk_reference */ 6402 struct { 6403 /* The cv-qualifiers for the reference. These qualifiers are 6404 only used to diagnose ill-formed code. */ 6405 cp_cv_quals qualifiers; 6406 /* Whether this is an rvalue reference */ 6407 bool rvalue_ref; 6408 } reference; 6409 } u; 6410 }; 6411 6412 /* A level of template instantiation. */ 6413 struct GTY((chain_next ("%h.next"))) tinst_level { 6414 /* The immediately deeper level in the chain. */ 6415 struct tinst_level *next; 6416 6417 /* The original node. TLDCL can be a DECL (for a function or static 6418 data member), a TYPE (for a class), depending on what we were 6419 asked to instantiate, or a TREE_LIST with the template as PURPOSE 6420 and the template args as VALUE, if we are substituting for 6421 overload resolution. In all these cases, TARGS is NULL. 6422 However, to avoid creating TREE_LIST objects for substitutions if 6423 we can help, we store PURPOSE and VALUE in TLDCL and TARGS, 6424 respectively. So TLDCL stands for TREE_LIST or DECL (the 6425 template is a DECL too), whereas TARGS stands for the template 6426 arguments. */ 6427 tree tldcl, targs; 6428 6429 /* For modules we need to know (a) the modules on the path of 6430 instantiation and (b) the transitive imports along that path. 6431 Note that these two bitmaps may be inherited from NEXT, if this 6432 decl is in the same module as NEXT (or has no new information). */ 6433 bitmap path; 6434 bitmap visible; 6435 6436 private: 6437 /* Return TRUE iff the original node is a split list. */ 6438 bool split_list_p () const { return targs; } 6439 6440 /* Return TRUE iff the original node is a TREE_LIST object. */ 6441 bool tree_list_p () const 6442 { 6443 return !split_list_p () && TREE_CODE (tldcl) == TREE_LIST; 6444 } 6445 6446 /* Return TRUE iff the original node is not a list, split or not. */ 6447 bool not_list_p () const 6448 { 6449 return !split_list_p () && !tree_list_p (); 6450 } 6451 6452 /* Convert (in place) the original node from a split list to a 6453 TREE_LIST. */ 6454 tree to_list (); 6455 6456 public: 6457 /* Release storage for OBJ and node, if it's a TREE_LIST. */ 6458 static void free (tinst_level *obj); 6459 6460 /* Return TRUE iff the original node is a list, split or not. */ 6461 bool list_p () const { return !not_list_p (); } 6462 6463 /* Return the original node; if it's a split list, make it a 6464 TREE_LIST first, so that it can be returned as a single tree 6465 object. */ 6466 tree get_node () { 6467 if (!split_list_p ()) return tldcl; 6468 else return to_list (); 6469 } 6470 6471 /* Return the original node if it's a DECL or a TREE_LIST, but do 6472 NOT convert a split list to a TREE_LIST: return NULL instead. */ 6473 tree maybe_get_node () const { 6474 if (!split_list_p ()) return tldcl; 6475 else return NULL_TREE; 6476 } 6477 6478 /* The location where the template is instantiated. */ 6479 location_t locus; 6480 6481 /* errorcount + sorrycount when we pushed this level. */ 6482 unsigned short errors; 6483 6484 /* Count references to this object. If refcount reaches 6485 refcount_infinity value, we don't increment or decrement the 6486 refcount anymore, as the refcount isn't accurate anymore. 6487 The object can be still garbage collected if unreferenced from 6488 anywhere, which might keep referenced objects referenced longer than 6489 otherwise necessary. Hitting the infinity is rare though. */ 6490 unsigned short refcount; 6491 6492 /* Infinity value for the above refcount. */ 6493 static const unsigned short refcount_infinity = (unsigned short) ~0; 6494 }; 6495 6496 /* BUILT_IN_FRONTEND function codes. */ 6497 enum cp_built_in_function { 6498 CP_BUILT_IN_IS_CONSTANT_EVALUATED, 6499 CP_BUILT_IN_INTEGER_PACK, 6500 CP_BUILT_IN_IS_CORRESPONDING_MEMBER, 6501 CP_BUILT_IN_IS_POINTER_INTERCONVERTIBLE_WITH_CLASS, 6502 CP_BUILT_IN_SOURCE_LOCATION, 6503 CP_BUILT_IN_LAST 6504 }; 6505 6506 bool decl_spec_seq_has_spec_p (const cp_decl_specifier_seq *, cp_decl_spec); 6507 6508 /* Return the type of the `this' parameter of FNTYPE. */ 6509 6510 inline tree 6511 type_of_this_parm (const_tree fntype) 6512 { 6513 function_args_iterator iter; 6514 gcc_assert (TREE_CODE (fntype) == METHOD_TYPE); 6515 function_args_iter_init (&iter, fntype); 6516 return function_args_iter_cond (&iter); 6517 } 6518 6519 /* Return the class of the `this' parameter of FNTYPE. */ 6520 6521 inline tree 6522 class_of_this_parm (const_tree fntype) 6523 { 6524 return TREE_TYPE (type_of_this_parm (fntype)); 6525 } 6526 6527 /* A parameter list indicating for a function with no parameters, 6528 e.g "int f(void)". */ 6529 extern cp_parameter_declarator *no_parameters; 6530 6531 /* Various dump ids. */ 6532 extern int class_dump_id; 6533 extern int module_dump_id; 6534 extern int raw_dump_id; 6535 6536 /* in call.cc */ 6537 extern bool check_dtor_name (tree, tree); 6538 int magic_varargs_p (tree); 6539 6540 extern tree build_conditional_expr (const op_location_t &, 6541 tree, tree, tree, 6542 tsubst_flags_t); 6543 extern tree build_addr_func (tree, tsubst_flags_t); 6544 extern void set_flags_from_callee (tree); 6545 extern tree build_call_a (tree, int, tree*); 6546 extern tree build_call_n (tree, int, ...); 6547 extern bool null_ptr_cst_p (tree); 6548 extern bool null_member_pointer_value_p (tree); 6549 extern bool sufficient_parms_p (const_tree); 6550 extern tree type_decays_to (tree); 6551 extern tree extract_call_expr (tree); 6552 extern tree build_trivial_dtor_call (tree, bool = false); 6553 extern bool ref_conv_binds_directly_p (tree, tree); 6554 extern tree build_user_type_conversion (tree, tree, int, 6555 tsubst_flags_t); 6556 extern tree build_new_function_call (tree, vec<tree, va_gc> **, 6557 tsubst_flags_t); 6558 extern tree build_operator_new_call (tree, vec<tree, va_gc> **, 6559 tree *, tree *, tree, tree, 6560 tree *, tsubst_flags_t); 6561 extern tree build_new_method_call (tree, tree, 6562 vec<tree, va_gc> **, tree, 6563 int, tree *, tsubst_flags_t); 6564 extern tree build_special_member_call (tree, tree, 6565 vec<tree, va_gc> **, 6566 tree, int, tsubst_flags_t); 6567 extern tree build_new_op (const op_location_t &, 6568 enum tree_code, 6569 int, tree, tree, tree, tree, 6570 tree *, tsubst_flags_t); 6571 /* Wrapper that leaves out the usually-null op3 and overload parms. */ 6572 inline tree build_new_op (const op_location_t &loc, enum tree_code code, 6573 int flags, tree arg1, tree arg2, 6574 tsubst_flags_t complain) 6575 { 6576 return build_new_op (loc, code, flags, arg1, arg2, NULL_TREE, NULL_TREE, 6577 NULL, complain); 6578 } 6579 extern tree build_op_call (tree, vec<tree, va_gc> **, 6580 tsubst_flags_t); 6581 extern tree build_op_subscript (const op_location_t &, tree, 6582 vec<tree, va_gc> **, tree *, 6583 tsubst_flags_t); 6584 extern bool aligned_allocation_fn_p (tree); 6585 extern tree destroying_delete_p (tree); 6586 extern bool usual_deallocation_fn_p (tree); 6587 extern tree build_op_delete_call (enum tree_code, tree, tree, 6588 bool, tree, tree, 6589 tsubst_flags_t); 6590 extern bool can_convert (tree, tree, tsubst_flags_t); 6591 extern bool can_convert_standard (tree, tree, tsubst_flags_t); 6592 extern bool can_convert_arg (tree, tree, tree, int, 6593 tsubst_flags_t); 6594 extern bool can_convert_arg_bad (tree, tree, tree, int, 6595 tsubst_flags_t); 6596 extern int conv_flags (int, int, tree, tree, int); 6597 extern struct conversion * good_conversion (tree, tree, tree, int, tsubst_flags_t); 6598 extern location_t get_fndecl_argument_location (tree, int); 6599 extern void complain_about_bad_argument (location_t arg_loc, 6600 tree from_type, tree to_type, 6601 tree fndecl, int parmnum); 6602 extern void maybe_inform_about_fndecl_for_bogus_argument_init (tree, int); 6603 extern tree perform_dguide_overload_resolution (tree, const vec<tree, va_gc> *, 6604 tsubst_flags_t); 6605 6606 6607 /* A class for recording information about access failures (e.g. private 6608 fields), so that we can potentially supply a fix-it hint about 6609 an accessor (from a context in which the constness of the object 6610 is known). */ 6611 6612 class access_failure_info 6613 { 6614 public: 6615 access_failure_info () : m_was_inaccessible (false), 6616 m_basetype_path (NULL_TREE), 6617 m_decl (NULL_TREE), m_diag_decl (NULL_TREE) {} 6618 6619 void record_access_failure (tree basetype_path, tree decl, tree diag_decl); 6620 6621 bool was_inaccessible_p () const { return m_was_inaccessible; } 6622 tree get_decl () const { return m_decl; } 6623 tree get_diag_decl () const { return m_diag_decl; } 6624 tree get_any_accessor (bool const_p) const; 6625 void maybe_suggest_accessor (bool const_p) const; 6626 static void add_fixit_hint (rich_location *richloc, tree accessor); 6627 6628 private: 6629 bool m_was_inaccessible; 6630 tree m_basetype_path; 6631 tree m_decl; 6632 tree m_diag_decl; 6633 }; 6634 6635 extern void complain_about_access (tree, tree, tree, bool, 6636 access_kind); 6637 extern void push_defarg_context (tree); 6638 extern void pop_defarg_context (void); 6639 extern tree convert_default_arg (tree, tree, tree, int, 6640 tsubst_flags_t); 6641 extern tree convert_arg_to_ellipsis (tree, tsubst_flags_t); 6642 extern tree build_x_va_arg (location_t, tree, tree); 6643 extern tree cxx_type_promotes_to (tree); 6644 extern tree type_passed_as (tree); 6645 extern tree convert_for_arg_passing (tree, tree, tsubst_flags_t); 6646 extern bool is_properly_derived_from (tree, tree); 6647 extern tree initialize_reference (tree, tree, int, 6648 tsubst_flags_t); 6649 extern tree extend_ref_init_temps (tree, tree, 6650 vec<tree, va_gc>**, 6651 tree * = NULL); 6652 extern tree make_temporary_var_for_ref_to_temp (tree, tree); 6653 extern bool type_has_extended_temps (tree); 6654 extern tree strip_top_quals (tree); 6655 extern bool reference_related_p (tree, tree); 6656 extern bool reference_compatible_p (tree, tree); 6657 extern int remaining_arguments (tree); 6658 extern tree build_implicit_conv_flags (tree, tree, int); 6659 extern tree perform_implicit_conversion (tree, tree, tsubst_flags_t); 6660 extern tree perform_implicit_conversion_flags (tree, tree, tsubst_flags_t, int); 6661 extern tree build_converted_constant_expr (tree, tree, tsubst_flags_t); 6662 extern tree build_converted_constant_bool_expr (tree, tsubst_flags_t); 6663 extern tree perform_direct_initialization_if_possible (tree, tree, bool, 6664 tsubst_flags_t); 6665 extern vec<tree,va_gc> *resolve_args (vec<tree,va_gc>*, tsubst_flags_t); 6666 extern tree in_charge_arg_for_name (tree); 6667 extern bool in_immediate_context (); 6668 extern tree build_cxx_call (tree, int, tree *, 6669 tsubst_flags_t, 6670 tree = NULL_TREE); 6671 extern bool is_std_init_list (tree); 6672 extern bool is_list_ctor (tree); 6673 extern void validate_conversion_obstack (void); 6674 extern void mark_versions_used (tree); 6675 extern int unsafe_return_slot_p (tree); 6676 extern bool make_safe_copy_elision (tree, tree); 6677 extern bool cp_handle_deprecated_or_unavailable (tree, tsubst_flags_t = tf_warning_or_error); 6678 extern void cp_warn_deprecated_use_scopes (tree); 6679 extern tree get_function_version_dispatcher (tree); 6680 6681 /* in class.cc */ 6682 extern tree build_vfield_ref (tree, tree); 6683 extern tree build_if_in_charge (tree true_stmt, tree false_stmt = void_node); 6684 extern tree build_base_path (enum tree_code, tree, 6685 tree, int, tsubst_flags_t); 6686 extern tree convert_to_base (tree, tree, bool, bool, 6687 tsubst_flags_t); 6688 extern tree convert_to_base_statically (tree, tree); 6689 extern bool is_empty_base_ref (tree); 6690 extern tree build_vtbl_ref (tree, tree); 6691 extern tree build_vfn_ref (tree, tree); 6692 extern tree get_vtable_decl (tree, int); 6693 extern bool add_method (tree, tree, bool); 6694 extern tree declared_access (tree); 6695 extern bool maybe_push_used_methods (tree); 6696 extern tree currently_open_class (tree); 6697 extern tree currently_open_derived_class (tree); 6698 extern tree outermost_open_class (void); 6699 extern tree current_nonlambda_class_type (void); 6700 extern tree finish_struct (tree, tree); 6701 extern void finish_struct_1 (tree); 6702 extern int resolves_to_fixed_type_p (tree, int * = NULL); 6703 extern void init_class_processing (void); 6704 extern int is_empty_class (tree); 6705 extern bool is_really_empty_class (tree, bool); 6706 extern void pushclass (tree); 6707 extern void popclass (void); 6708 extern void push_nested_class (tree); 6709 extern void pop_nested_class (void); 6710 extern int current_lang_depth (void); 6711 extern void push_lang_context (tree); 6712 extern void pop_lang_context (void); 6713 extern tree instantiate_type (tree, tree, tsubst_flags_t); 6714 extern void build_self_reference (void); 6715 extern int same_signature_p (const_tree, const_tree); 6716 extern tree lookup_vfn_in_binfo (tree, tree); 6717 extern void maybe_add_class_template_decl_list (tree, tree, int); 6718 extern void unreverse_member_declarations (tree); 6719 extern bool is_empty_field (tree); 6720 extern void invalidate_class_lookup_cache (void); 6721 extern void maybe_note_name_used_in_class (tree, tree); 6722 extern void note_name_declared_in_class (tree, tree); 6723 extern tree get_vtbl_decl_for_binfo (tree); 6724 extern bool vptr_via_virtual_p (tree); 6725 extern void debug_class (tree); 6726 extern void debug_thunks (tree); 6727 extern void set_linkage_according_to_type (tree, tree); 6728 extern void determine_key_method (tree); 6729 extern void check_for_override (tree, tree); 6730 extern void push_class_stack (void); 6731 extern void pop_class_stack (void); 6732 extern bool default_ctor_p (const_tree); 6733 extern bool type_has_user_nondefault_constructor (tree); 6734 extern tree in_class_defaulted_default_constructor (tree); 6735 extern bool user_provided_p (tree); 6736 extern bool type_has_user_provided_constructor (tree); 6737 extern bool type_has_non_user_provided_default_constructor (tree); 6738 extern bool vbase_has_user_provided_move_assign (tree); 6739 extern tree default_init_uninitialized_part (tree); 6740 extern bool trivial_default_constructor_is_constexpr (tree); 6741 extern bool type_has_constexpr_default_constructor (tree); 6742 extern bool type_has_constexpr_destructor (tree); 6743 extern bool type_has_virtual_destructor (tree); 6744 extern bool classtype_has_move_assign_or_move_ctor_p (tree, bool user_declared); 6745 extern bool classtype_has_non_deleted_move_ctor (tree); 6746 extern tree classtype_has_depr_implicit_copy (tree); 6747 extern bool classtype_has_op (tree, tree_code); 6748 extern tree classtype_has_defaulted_op (tree, tree_code); 6749 extern bool type_build_ctor_call (tree); 6750 extern bool type_build_dtor_call (tree); 6751 extern void explain_non_literal_class (tree); 6752 extern void inherit_targ_abi_tags (tree); 6753 extern void defaulted_late_check (tree); 6754 extern bool defaultable_fn_check (tree); 6755 extern void check_abi_tags (tree); 6756 extern tree missing_abi_tags (tree); 6757 extern void fixup_type_variants (tree); 6758 extern void fixup_attribute_variants (tree); 6759 extern void build_cdtor_clones (tree, bool, bool, bool); 6760 extern void clone_cdtor (tree, bool); 6761 extern tree copy_operator_fn (tree, tree_code code); 6762 extern void adjust_clone_args (tree); 6763 extern void deduce_noexcept_on_destructor (tree); 6764 extern bool uniquely_derived_from_p (tree, tree); 6765 extern bool publicly_uniquely_derived_p (tree, tree); 6766 extern tree common_enclosing_class (tree, tree); 6767 6768 /* in cvt.cc */ 6769 extern tree convert_to_reference (tree, tree, int, int, tree, 6770 tsubst_flags_t); 6771 extern tree convert_from_reference (tree); 6772 extern tree force_rvalue (tree, tsubst_flags_t); 6773 extern tree ocp_convert (tree, tree, int, int, 6774 tsubst_flags_t); 6775 extern tree cp_convert (tree, tree, tsubst_flags_t); 6776 extern tree cp_convert_and_check (tree, tree, tsubst_flags_t); 6777 extern tree cp_fold_convert (tree, tree); 6778 extern tree cp_get_callee (tree); 6779 extern tree cp_get_callee_fndecl (tree); 6780 extern tree cp_get_callee_fndecl_nofold (tree); 6781 extern tree cp_get_fndecl_from_callee (tree, bool fold = true); 6782 extern tree convert_to_void (tree, impl_conv_void, 6783 tsubst_flags_t); 6784 extern tree convert_force (tree, tree, int, 6785 tsubst_flags_t); 6786 extern tree build_expr_type_conversion (int, tree, bool); 6787 extern tree type_promotes_to (tree); 6788 extern bool can_convert_qual (tree, tree); 6789 extern tree perform_qualification_conversions (tree, tree); 6790 extern bool tx_safe_fn_type_p (tree); 6791 extern tree tx_unsafe_fn_variant (tree); 6792 extern bool fnptr_conv_p (tree, tree); 6793 extern tree strip_fnptr_conv (tree); 6794 6795 /* in name-lookup.cc */ 6796 extern void maybe_push_cleanup_level (tree); 6797 extern tree maybe_push_decl (tree); 6798 extern tree current_decl_namespace (void); 6799 6800 /* decl.cc */ 6801 extern tree poplevel (int, int, int); 6802 extern void cxx_init_decl_processing (void); 6803 enum cp_tree_node_structure_enum cp_tree_node_structure 6804 (union lang_tree_node *); 6805 extern void finish_scope (void); 6806 extern void push_switch (tree); 6807 extern void pop_switch (void); 6808 extern void note_break_stmt (void); 6809 extern bool note_iteration_stmt_body_start (void); 6810 extern void note_iteration_stmt_body_end (bool); 6811 extern void determine_local_discriminator (tree); 6812 extern int decls_match (tree, tree, bool = true); 6813 extern bool maybe_version_functions (tree, tree, bool); 6814 extern bool merge_default_template_args (tree, tree, bool); 6815 extern tree duplicate_decls (tree, tree, 6816 bool hiding = false, 6817 bool was_hidden = false); 6818 extern tree declare_local_label (tree); 6819 extern tree define_label (location_t, tree); 6820 extern void check_goto (tree); 6821 extern bool check_omp_return (void); 6822 extern tree make_typename_type (tree, tree, enum tag_types, tsubst_flags_t); 6823 extern tree build_typename_type (tree, tree, tree, tag_types); 6824 extern tree make_unbound_class_template (tree, tree, tree, tsubst_flags_t); 6825 extern tree make_unbound_class_template_raw (tree, tree, tree); 6826 extern unsigned push_abi_namespace (tree node = abi_node); 6827 extern void pop_abi_namespace (unsigned flags, 6828 tree node = abi_node); 6829 extern tree build_library_fn_ptr (const char *, tree, int); 6830 extern tree build_cp_library_fn_ptr (const char *, tree, int); 6831 extern tree push_library_fn (tree, tree, tree, int); 6832 extern tree push_throw_library_fn (tree, tree); 6833 extern void warn_misplaced_attr_for_class_type (location_t location, 6834 tree class_type); 6835 extern tree check_tag_decl (cp_decl_specifier_seq *, bool); 6836 extern tree shadow_tag (cp_decl_specifier_seq *); 6837 extern tree groktypename (cp_decl_specifier_seq *, const cp_declarator *, bool); 6838 extern tree start_decl (const cp_declarator *, cp_decl_specifier_seq *, int, tree, tree, tree *); 6839 extern void start_decl_1 (tree, bool); 6840 extern bool check_array_initializer (tree, tree, tree); 6841 extern void omp_declare_variant_finalize (tree, tree); 6842 extern void cp_finish_decl (tree, tree, bool, tree, int); 6843 extern tree lookup_decomp_type (tree); 6844 extern void cp_maybe_mangle_decomp (tree, tree, unsigned int); 6845 extern void cp_finish_decomp (tree, tree, unsigned int); 6846 extern int cp_complete_array_type (tree *, tree, bool); 6847 extern int cp_complete_array_type_or_error (tree *, tree, bool, tsubst_flags_t); 6848 extern tree build_ptrmemfunc_type (tree); 6849 extern tree build_ptrmem_type (tree, tree); 6850 /* the grokdeclarator prototype is in decl.h */ 6851 extern tree build_this_parm (tree, tree, cp_cv_quals); 6852 extern tree grokparms (tree, tree *); 6853 extern int copy_fn_p (const_tree); 6854 extern bool move_fn_p (const_tree); 6855 extern bool move_signature_fn_p (const_tree); 6856 extern tree get_scope_of_declarator (const cp_declarator *); 6857 extern void grok_special_member_properties (tree); 6858 extern bool grok_ctor_properties (const_tree, const_tree); 6859 extern bool grok_op_properties (tree, bool); 6860 extern tree xref_tag (tag_types, tree, 6861 TAG_how = TAG_how::CURRENT_ONLY, 6862 bool tpl_header_p = false); 6863 extern void xref_basetypes (tree, tree); 6864 extern tree start_enum (tree, tree, tree, tree, bool, bool *); 6865 extern void finish_enum_value_list (tree); 6866 extern void finish_enum (tree); 6867 extern tree build_enumerator (tree, tree, tree, tree, location_t); 6868 extern tree lookup_enumerator (tree, tree); 6869 extern bool start_preparsed_function (tree, tree, int); 6870 extern bool start_function (cp_decl_specifier_seq *, 6871 const cp_declarator *, tree); 6872 extern tree begin_function_body (void); 6873 extern void finish_function_body (tree); 6874 extern tree outer_curly_brace_block (tree); 6875 extern tree finish_function (bool); 6876 extern tree grokmethod (cp_decl_specifier_seq *, const cp_declarator *, tree); 6877 extern void maybe_register_incomplete_var (tree); 6878 extern void maybe_commonize_var (tree); 6879 extern void complete_vars (tree); 6880 extern tree static_fn_type (tree); 6881 extern void revert_static_member_fn (tree); 6882 extern void fixup_anonymous_aggr (tree); 6883 extern tree compute_array_index_type (tree, tree, tsubst_flags_t); 6884 extern tree check_default_argument (tree, tree, tsubst_flags_t); 6885 extern int wrapup_namespace_globals (); 6886 extern tree create_implicit_typedef (tree, tree); 6887 extern int local_variable_p (const_tree); 6888 extern tree register_dtor_fn (tree); 6889 extern tmpl_spec_kind current_tmpl_spec_kind (int); 6890 extern tree cxx_builtin_function (tree decl); 6891 extern tree cxx_builtin_function_ext_scope (tree decl); 6892 extern tree cxx_simulate_builtin_function_decl (tree); 6893 extern tree check_elaborated_type_specifier (enum tag_types, tree, bool); 6894 extern void warn_extern_redeclared_static (tree, tree); 6895 extern tree cxx_comdat_group (tree); 6896 extern bool cp_missing_noreturn_ok_p (tree); 6897 extern bool is_direct_enum_init (tree, tree); 6898 extern void initialize_artificial_var (tree, vec<constructor_elt, va_gc> *); 6899 extern tree check_var_type (tree, tree, location_t); 6900 extern tree reshape_init (tree, tree, tsubst_flags_t); 6901 extern tree next_initializable_field (tree); 6902 extern tree next_subobject_field (tree); 6903 extern tree first_field (const_tree); 6904 extern tree fndecl_declared_return_type (tree); 6905 extern bool undeduced_auto_decl (tree); 6906 extern bool require_deduced_type (tree, tsubst_flags_t = tf_warning_or_error); 6907 6908 extern tree finish_case_label (location_t, tree, tree); 6909 extern tree cxx_maybe_build_cleanup (tree, tsubst_flags_t); 6910 extern bool check_array_designated_initializer (constructor_elt *, 6911 unsigned HOST_WIDE_INT); 6912 extern bool check_for_uninitialized_const_var (tree, bool, tsubst_flags_t); 6913 extern tree build_explicit_specifier (tree, tsubst_flags_t); 6914 extern void do_push_parm_decls (tree, tree, tree *); 6915 extern tree do_aggregate_paren_init (tree, tree); 6916 6917 /* in decl2.cc */ 6918 extern void record_mangling (tree, bool); 6919 extern void overwrite_mangling (tree, tree); 6920 extern void note_mangling_alias (tree, tree); 6921 extern void generate_mangling_aliases (void); 6922 extern tree build_memfn_type (tree, tree, cp_cv_quals, cp_ref_qualifier); 6923 extern tree build_pointer_ptrmemfn_type (tree); 6924 extern tree change_return_type (tree, tree); 6925 extern void maybe_retrofit_in_chrg (tree); 6926 extern void maybe_make_one_only (tree); 6927 extern bool vague_linkage_p (tree); 6928 extern void grokclassfn (tree, tree, 6929 enum overload_flags); 6930 extern tree grok_array_decl (location_t, tree, tree, 6931 vec<tree, va_gc> **, tsubst_flags_t); 6932 extern tree delete_sanity (location_t, tree, tree, bool, 6933 int, tsubst_flags_t); 6934 extern tree check_classfn (tree, tree, tree); 6935 extern void check_member_template (tree); 6936 extern tree grokfield (const cp_declarator *, cp_decl_specifier_seq *, 6937 tree, bool, tree, tree); 6938 extern tree grokbitfield (const cp_declarator *, cp_decl_specifier_seq *, 6939 tree, tree, tree); 6940 extern tree splice_template_attributes (tree *, tree); 6941 extern bool any_dependent_type_attributes_p (tree); 6942 extern tree cp_reconstruct_complex_type (tree, tree); 6943 extern bool attributes_naming_typedef_ok (tree); 6944 extern void cplus_decl_attributes (tree *, tree, int); 6945 extern void finish_anon_union (tree); 6946 extern void cxx_post_compilation_parsing_cleanups (void); 6947 extern tree coerce_new_type (tree, location_t); 6948 extern void coerce_delete_type (tree, location_t); 6949 extern void comdat_linkage (tree); 6950 extern void determine_visibility (tree); 6951 extern void constrain_class_visibility (tree); 6952 extern void reset_type_linkage (tree); 6953 extern void tentative_decl_linkage (tree); 6954 extern void import_export_decl (tree); 6955 extern tree build_cleanup (tree); 6956 extern tree build_offset_ref_call_from_tree (tree, vec<tree, va_gc> **, 6957 tsubst_flags_t); 6958 extern bool decl_defined_p (tree); 6959 extern bool decl_constant_var_p (tree); 6960 extern bool decl_maybe_constant_var_p (tree); 6961 extern void no_linkage_error (tree); 6962 extern void check_default_args (tree); 6963 extern bool mark_used (tree); 6964 extern bool mark_used (tree, tsubst_flags_t); 6965 extern bool mark_single_function (tree, tsubst_flags_t); 6966 extern void finish_static_data_member_decl (tree, tree, bool, tree, int); 6967 extern tree cp_build_parm_decl (tree, tree, tree); 6968 extern void copy_linkage (tree, tree); 6969 extern tree get_guard (tree); 6970 extern tree get_guard_cond (tree, bool); 6971 extern tree set_guard (tree); 6972 extern bool var_needs_tls_wrapper (tree); 6973 extern tree maybe_get_tls_wrapper_call (tree); 6974 extern void mark_needed (tree); 6975 extern bool decl_needed_p (tree); 6976 extern void note_vague_linkage_fn (tree); 6977 extern void note_variable_template_instantiation (tree); 6978 extern tree build_artificial_parm (tree, tree, tree); 6979 extern bool possibly_inlined_p (tree); 6980 extern int parm_index (tree); 6981 extern tree vtv_start_verification_constructor_init_function (void); 6982 extern tree vtv_finish_verification_constructor_init_function (tree); 6983 extern bool cp_omp_mappable_type (tree); 6984 extern bool cp_omp_emit_unmappable_type_notes (tree); 6985 extern void cp_check_const_attributes (tree); 6986 6987 /* in error.cc */ 6988 extern const char *type_as_string (tree, int); 6989 extern const char *type_as_string_translate (tree, int); 6990 extern const char *decl_as_string (tree, int); 6991 extern const char *decl_as_string_translate (tree, int); 6992 extern const char *decl_as_dwarf_string (tree, int); 6993 extern const char *expr_as_string (tree, int); 6994 extern const char *expr_to_string (tree); 6995 extern const char *lang_decl_name (tree, int, bool); 6996 extern const char *lang_decl_dwarf_name (tree, int, bool); 6997 extern const char *language_to_string (enum languages); 6998 extern const char *class_key_or_enum_as_string (tree); 6999 extern void maybe_warn_variadic_templates (void); 7000 extern void maybe_warn_cpp0x (cpp0x_warn_str str, 7001 location_t = input_location); 7002 extern bool pedwarn_cxx98 (location_t, int, const char *, ...) ATTRIBUTE_GCC_DIAG(3,4); 7003 extern location_t location_of (tree); 7004 extern void qualified_name_lookup_error (tree, tree, tree, 7005 location_t); 7006 7007 /* in except.cc */ 7008 extern void init_exception_processing (void); 7009 extern tree expand_start_catch_block (tree); 7010 extern void expand_end_catch_block (void); 7011 extern tree build_exc_ptr (void); 7012 extern tree build_throw (location_t, tree); 7013 extern int nothrow_libfn_p (const_tree); 7014 extern void check_handlers (tree); 7015 extern tree finish_noexcept_expr (tree, tsubst_flags_t); 7016 extern bool expr_noexcept_p (tree, tsubst_flags_t); 7017 extern void perform_deferred_noexcept_checks (void); 7018 extern bool nothrow_spec_p (const_tree); 7019 extern bool type_noexcept_p (const_tree); 7020 extern bool type_throw_all_p (const_tree); 7021 extern tree build_noexcept_spec (tree, tsubst_flags_t); 7022 extern void choose_personality_routine (enum languages); 7023 extern tree build_must_not_throw_expr (tree,tree); 7024 extern tree eh_type_info (tree); 7025 extern tree begin_eh_spec_block (void); 7026 extern void finish_eh_spec_block (tree, tree); 7027 extern tree build_eh_type_type (tree); 7028 extern tree cp_protect_cleanup_actions (void); 7029 extern void maybe_splice_retval_cleanup (tree, bool); 7030 extern tree maybe_set_retval_sentinel (void); 7031 7032 extern tree template_parms_to_args (tree); 7033 extern tree template_parms_level_to_args (tree); 7034 extern tree generic_targs_for (tree); 7035 extern tree outer_template_args (tree); 7036 7037 /* in expr.cc */ 7038 extern tree cplus_expand_constant (tree); 7039 extern tree mark_use (tree expr, bool rvalue_p, bool read_p, 7040 location_t = UNKNOWN_LOCATION, 7041 bool reject_builtin = true); 7042 extern tree mark_rvalue_use (tree, 7043 location_t = UNKNOWN_LOCATION, 7044 bool reject_builtin = true); 7045 extern tree mark_lvalue_use (tree); 7046 extern tree mark_lvalue_use_nonread (tree); 7047 extern tree mark_type_use (tree); 7048 extern tree mark_discarded_use (tree); 7049 extern void mark_exp_read (tree); 7050 7051 /* friend.cc */ 7052 extern int is_friend (tree, tree); 7053 extern void make_friend_class (tree, tree, bool); 7054 extern void add_friend (tree, tree, bool); 7055 extern tree do_friend (tree, tree, tree, 7056 enum overload_flags, bool); 7057 7058 extern void set_global_friend (tree); 7059 extern bool is_global_friend (tree); 7060 7061 /* in init.cc */ 7062 extern tree expand_member_init (tree); 7063 extern void emit_mem_initializers (tree); 7064 extern tree build_aggr_init (tree, tree, int, 7065 tsubst_flags_t); 7066 extern int is_class_type (tree, int); 7067 extern bool is_copy_initialization (tree); 7068 extern tree build_zero_init (tree, tree, bool); 7069 extern tree build_value_init (tree, tsubst_flags_t); 7070 extern tree build_value_init_noctor (tree, tsubst_flags_t); 7071 extern tree maybe_instantiate_nsdmi_init (tree, tsubst_flags_t); 7072 extern tree get_nsdmi (tree, bool, tsubst_flags_t); 7073 extern tree build_offset_ref (tree, tree, bool, 7074 tsubst_flags_t); 7075 extern tree throw_bad_array_new_length (void); 7076 extern bool type_has_new_extended_alignment (tree); 7077 extern unsigned malloc_alignment (void); 7078 extern tree build_new_constexpr_heap_type (tree, tree, tree); 7079 extern tree build_new (location_t, 7080 vec<tree, va_gc> **, tree, 7081 tree, vec<tree, va_gc> **, 7082 int, tsubst_flags_t); 7083 extern tree get_temp_regvar (tree, tree); 7084 extern tree build_vec_init (tree, tree, tree, bool, int, 7085 tsubst_flags_t, 7086 vec<tree, va_gc> ** = nullptr); 7087 extern tree build_delete (location_t, tree, tree, 7088 special_function_kind, 7089 int, int, tsubst_flags_t); 7090 extern void push_base_cleanups (void); 7091 extern tree build_vec_delete (location_t, tree, tree, 7092 special_function_kind, int, 7093 tsubst_flags_t); 7094 extern tree create_temporary_var (tree); 7095 extern void initialize_vtbl_ptrs (tree); 7096 extern tree scalar_constant_value (tree); 7097 extern tree decl_constant_value (tree, bool); 7098 extern tree decl_really_constant_value (tree, bool = true); 7099 extern int diagnose_uninitialized_cst_or_ref_member (tree, bool, bool); 7100 extern tree build_vtbl_address (tree); 7101 extern bool maybe_reject_flexarray_init (tree, tree); 7102 7103 /* in lex.cc */ 7104 extern void cxx_dup_lang_specific_decl (tree); 7105 extern tree unqualified_name_lookup_error (tree, 7106 location_t = UNKNOWN_LOCATION); 7107 extern tree unqualified_fn_lookup_error (cp_expr); 7108 extern tree make_conv_op_name (tree); 7109 extern tree build_lang_decl (enum tree_code, tree, tree); 7110 extern tree build_lang_decl_loc (location_t, enum tree_code, tree, tree); 7111 extern bool maybe_add_lang_decl_raw (tree, bool decomp_p); 7112 extern bool maybe_add_lang_type_raw (tree); 7113 extern void retrofit_lang_decl (tree); 7114 extern void fit_decomposition_lang_decl (tree, tree); 7115 extern tree copy_decl (tree CXX_MEM_STAT_INFO); 7116 extern tree copy_type (tree CXX_MEM_STAT_INFO); 7117 extern tree cxx_make_type (enum tree_code CXX_MEM_STAT_INFO); 7118 extern tree make_class_type (enum tree_code CXX_MEM_STAT_INFO); 7119 extern const char *get_identifier_kind_name (tree); 7120 extern void set_identifier_kind (tree, cp_identifier_kind); 7121 extern bool cxx_init (void); 7122 extern void cxx_finish (void); 7123 extern bool in_main_input_context (void); 7124 extern uintptr_t module_token_pre (cpp_reader *, const cpp_token *, uintptr_t); 7125 extern uintptr_t module_token_cdtor (cpp_reader *, uintptr_t); 7126 extern uintptr_t module_token_lang (int type, int keyword, tree value, 7127 location_t, uintptr_t); 7128 7129 /* in method.cc */ 7130 extern void init_method (void); 7131 extern tree make_thunk (tree, bool, tree, tree); 7132 extern void finish_thunk (tree); 7133 extern void use_thunk (tree, bool); 7134 extern bool trivial_fn_p (tree); 7135 extern tree forward_parm (tree); 7136 extern bool is_trivially_xible (enum tree_code, tree, tree); 7137 extern bool is_nothrow_xible (enum tree_code, tree, tree); 7138 extern bool is_xible (enum tree_code, tree, tree); 7139 extern tree get_defaulted_eh_spec (tree, tsubst_flags_t = tf_warning_or_error); 7140 extern bool maybe_explain_implicit_delete (tree); 7141 extern void explain_implicit_non_constexpr (tree); 7142 extern bool deduce_inheriting_ctor (tree); 7143 extern bool decl_remember_implicit_trigger_p (tree); 7144 extern void synthesize_method (tree); 7145 extern void maybe_synthesize_method (tree); 7146 extern tree lazily_declare_fn (special_function_kind, 7147 tree); 7148 extern tree skip_artificial_parms_for (const_tree, tree); 7149 extern int num_artificial_parms_for (const_tree); 7150 extern tree make_alias_for (tree, tree); 7151 extern tree get_copy_ctor (tree, tsubst_flags_t); 7152 extern tree get_copy_assign (tree); 7153 extern tree get_default_ctor (tree); 7154 extern tree get_dtor (tree, tsubst_flags_t); 7155 extern tree build_stub_object (tree); 7156 extern tree strip_inheriting_ctors (tree); 7157 extern tree inherited_ctor_binfo (tree); 7158 extern bool base_ctor_omit_inherited_parms (tree); 7159 extern bool ctor_omit_inherited_parms (tree); 7160 extern tree locate_ctor (tree); 7161 extern tree implicitly_declare_fn (special_function_kind, tree, 7162 bool, tree, tree); 7163 /* In module.cc */ 7164 class module_state; /* Forward declare. */ 7165 inline bool modules_p () { return flag_modules != 0; } 7166 7167 /* The kind of module or part thereof that we're in. */ 7168 enum module_kind_bits 7169 { 7170 MK_MODULE = 1 << 0, /* This TU is a module. */ 7171 MK_GLOBAL = 1 << 1, /* Entities are in the global module. */ 7172 MK_INTERFACE = 1 << 2, /* This TU is an interface. */ 7173 MK_PARTITION = 1 << 3, /* This TU is a partition. */ 7174 MK_EXPORTING = 1 << 4, /* We are in an export region. */ 7175 }; 7176 7177 /* We do lots of bit-manipulation, so an unsigned is easier. */ 7178 extern unsigned module_kind; 7179 7180 /* MK_MODULE & MK_GLOBAL have the following combined meanings: 7181 MODULE GLOBAL 7182 0 0 not a module 7183 0 1 GMF of named module (we've not yet seen module-decl) 7184 1 0 purview of named module 7185 1 1 header unit. */ 7186 7187 inline bool module_purview_p () 7188 { return module_kind & MK_MODULE; } 7189 inline bool global_purview_p () 7190 { return module_kind & MK_GLOBAL; } 7191 7192 inline bool not_module_p () 7193 { return (module_kind & (MK_MODULE | MK_GLOBAL)) == 0; } 7194 inline bool named_module_p () 7195 { /* This is a named module if exactly one of MODULE and GLOBAL is 7196 set. */ 7197 /* The divides are constant shifts! */ 7198 return ((module_kind / MK_MODULE) ^ (module_kind / MK_GLOBAL)) & 1; 7199 } 7200 inline bool header_module_p () 7201 { return (module_kind & (MK_MODULE | MK_GLOBAL)) == (MK_MODULE | MK_GLOBAL); } 7202 inline bool named_module_purview_p () 7203 { return (module_kind & (MK_MODULE | MK_GLOBAL)) == MK_MODULE; } 7204 inline bool module_interface_p () 7205 { return module_kind & MK_INTERFACE; } 7206 inline bool module_partition_p () 7207 { return module_kind & MK_PARTITION; } 7208 inline bool module_has_cmi_p () 7209 { return module_kind & (MK_INTERFACE | MK_PARTITION); } 7210 7211 /* We're currently exporting declarations. */ 7212 inline bool module_exporting_p () 7213 { return module_kind & MK_EXPORTING; } 7214 7215 extern module_state *get_module (tree name, module_state *parent = NULL, 7216 bool partition = false); 7217 extern bool module_may_redeclare (tree decl); 7218 7219 extern int module_initializer_kind (); 7220 extern void module_add_import_initializers (); 7221 7222 /* Where the namespace-scope decl was originally declared. */ 7223 extern void set_originating_module (tree, bool friend_p = false); 7224 extern tree get_originating_module_decl (tree) ATTRIBUTE_PURE; 7225 extern int get_originating_module (tree, bool for_mangle = false) ATTRIBUTE_PURE; 7226 extern unsigned get_importing_module (tree, bool = false) ATTRIBUTE_PURE; 7227 7228 /* Where current instance of the decl got declared/defined/instantiated. */ 7229 extern void set_instantiating_module (tree); 7230 extern void set_defining_module (tree); 7231 extern void maybe_attach_decl (tree ctx, tree decl); 7232 7233 extern void mangle_module (int m, bool include_partition); 7234 extern void mangle_module_fini (); 7235 extern void lazy_load_binding (unsigned mod, tree ns, tree id, 7236 binding_slot *bslot); 7237 extern void lazy_load_pendings (tree decl); 7238 extern module_state *preprocess_module (module_state *, location_t, 7239 bool in_purview, 7240 bool is_import, bool export_p, 7241 cpp_reader *reader); 7242 extern void preprocessed_module (cpp_reader *reader); 7243 extern void import_module (module_state *, location_t, bool export_p, 7244 tree attr, cpp_reader *); 7245 extern void declare_module (module_state *, location_t, bool export_p, 7246 tree attr, cpp_reader *); 7247 extern void init_modules (cpp_reader *); 7248 extern void fini_modules (); 7249 extern void maybe_check_all_macros (cpp_reader *); 7250 extern void finish_module_processing (cpp_reader *); 7251 extern char const *module_name (unsigned, bool header_ok); 7252 extern bitmap get_import_bitmap (); 7253 extern bitmap visible_instantiation_path (bitmap *); 7254 extern void module_begin_main_file (cpp_reader *, line_maps *, 7255 const line_map_ordinary *); 7256 extern void module_preprocess_options (cpp_reader *); 7257 extern bool handle_module_option (unsigned opt, const char *arg, int value); 7258 7259 /* In optimize.cc */ 7260 extern bool maybe_clone_body (tree); 7261 7262 /* In parser.cc */ 7263 extern tree cp_convert_range_for (tree, tree, tree, tree, unsigned int, bool, 7264 unsigned short); 7265 extern void cp_convert_omp_range_for (tree &, vec<tree, va_gc> *, tree &, 7266 tree &, tree &, tree &, tree &, tree &); 7267 extern void cp_finish_omp_range_for (tree, tree); 7268 extern bool parsing_nsdmi (void); 7269 extern bool parsing_function_declarator (); 7270 extern bool parsing_default_capturing_generic_lambda_in_template (void); 7271 extern void inject_this_parameter (tree, cp_cv_quals); 7272 extern location_t defparse_location (tree); 7273 extern void maybe_show_extern_c_location (void); 7274 extern bool literal_integer_zerop (const_tree); 7275 7276 /* in pt.cc */ 7277 extern tree canonical_type_parameter (tree); 7278 extern void push_access_scope (tree); 7279 extern void pop_access_scope (tree); 7280 extern bool check_template_shadow (tree); 7281 extern bool check_auto_in_tmpl_args (tree, tree); 7282 extern tree get_innermost_template_args (tree, int); 7283 extern void maybe_begin_member_template_processing (tree); 7284 extern void maybe_end_member_template_processing (void); 7285 extern tree finish_member_template_decl (tree); 7286 extern void begin_template_parm_list (void); 7287 extern bool begin_specialization (void); 7288 extern void reset_specialization (void); 7289 extern void end_specialization (void); 7290 extern void begin_explicit_instantiation (void); 7291 extern void end_explicit_instantiation (void); 7292 extern void check_unqualified_spec_or_inst (tree, location_t); 7293 extern tree check_explicit_specialization (tree, tree, int, int, 7294 tree = NULL_TREE); 7295 extern int num_template_headers_for_class (tree); 7296 extern void check_template_variable (tree); 7297 extern tree make_auto (void); 7298 extern tree make_decltype_auto (void); 7299 extern tree make_constrained_auto (tree, tree); 7300 extern tree make_constrained_decltype_auto (tree, tree); 7301 extern tree make_template_placeholder (tree); 7302 extern bool template_placeholder_p (tree); 7303 extern bool ctad_template_p (tree); 7304 extern tree do_auto_deduction (tree, tree, tree, 7305 tsubst_flags_t 7306 = tf_warning_or_error, 7307 auto_deduction_context 7308 = adc_unspecified, 7309 tree = NULL_TREE, 7310 int = LOOKUP_NORMAL, 7311 tree = NULL_TREE); 7312 extern tree type_uses_auto (tree); 7313 extern tree type_uses_auto_or_concept (tree); 7314 extern void append_type_to_template_for_access_check (tree, tree, tree, 7315 location_t); 7316 extern tree convert_generic_types_to_packs (tree, int, int); 7317 extern tree splice_late_return_type (tree, tree); 7318 extern bool is_auto (const_tree); 7319 extern tree process_template_parm (tree, location_t, tree, 7320 bool, bool); 7321 extern tree end_template_parm_list (tree); 7322 extern void end_template_parm_list (void); 7323 extern void end_template_decl (void); 7324 extern tree maybe_update_decl_type (tree, tree); 7325 extern bool check_default_tmpl_args (tree, tree, bool, bool, int); 7326 extern tree push_template_decl (tree, bool is_friend = false); 7327 extern tree add_inherited_template_parms (tree, tree); 7328 extern void template_parm_level_and_index (tree, int*, int*); 7329 extern bool redeclare_class_template (tree, tree, tree); 7330 extern tree lookup_template_class (tree, tree, tree, tree, 7331 int, tsubst_flags_t); 7332 extern tree lookup_template_function (tree, tree); 7333 extern tree lookup_template_variable (tree, tree); 7334 extern int uses_template_parms (tree); 7335 extern bool uses_template_parms_level (tree, int); 7336 extern bool uses_outer_template_parms_in_constraints (tree); 7337 extern bool in_template_function (void); 7338 extern bool need_generic_capture (void); 7339 extern tree instantiate_class_template (tree); 7340 extern tree instantiate_template (tree, tree, tsubst_flags_t); 7341 extern tree fn_type_unification (tree, tree, tree, 7342 const tree *, unsigned int, 7343 tree, unification_kind_t, int, 7344 struct conversion **, 7345 bool, bool); 7346 extern void mark_decl_instantiated (tree, int); 7347 extern int more_specialized_fn (tree, tree, int); 7348 extern void do_decl_instantiation (tree, tree); 7349 extern void do_type_instantiation (tree, tree, tsubst_flags_t); 7350 extern bool always_instantiate_p (tree); 7351 extern bool maybe_instantiate_noexcept (tree, tsubst_flags_t = tf_warning_or_error); 7352 extern tree instantiate_decl (tree, bool, bool); 7353 extern void maybe_instantiate_decl (tree); 7354 extern int comp_template_parms (const_tree, const_tree); 7355 extern bool template_heads_equivalent_p (const_tree, const_tree); 7356 extern bool builtin_pack_fn_p (tree); 7357 extern tree uses_parameter_packs (tree); 7358 extern bool template_parameter_pack_p (const_tree); 7359 extern bool function_parameter_pack_p (const_tree); 7360 extern bool function_parameter_expanded_from_pack_p (tree, tree); 7361 extern tree make_pack_expansion (tree, tsubst_flags_t = tf_warning_or_error); 7362 extern bool check_for_bare_parameter_packs (tree, location_t = UNKNOWN_LOCATION); 7363 extern tree build_template_info (tree, tree); 7364 extern tree get_template_info (const_tree); 7365 extern int template_class_depth (tree); 7366 extern int is_specialization_of (tree, tree); 7367 extern bool is_specialization_of_friend (tree, tree); 7368 extern int comp_template_args (tree, tree, tree * = NULL, 7369 tree * = NULL, bool = false); 7370 extern int template_args_equal (tree, tree, bool = false); 7371 extern tree maybe_process_partial_specialization (tree); 7372 extern tree most_specialized_instantiation (tree); 7373 extern tree most_specialized_partial_spec (tree, tsubst_flags_t); 7374 extern void print_candidates (tree); 7375 extern void instantiate_pending_templates (int); 7376 extern tree tsubst_default_argument (tree, int, tree, tree, 7377 tsubst_flags_t); 7378 extern tree tsubst (tree, tree, tsubst_flags_t, tree); 7379 extern tree tsubst_copy_and_build (tree, tree, tsubst_flags_t, 7380 tree, bool = false, bool = false); 7381 extern tree tsubst_expr (tree, tree, tsubst_flags_t, 7382 tree, bool); 7383 extern tree tsubst_pack_expansion (tree, tree, tsubst_flags_t, tree); 7384 extern tree tsubst_argument_pack (tree, tree, tsubst_flags_t, tree); 7385 extern tree tsubst_template_args (tree, tree, tsubst_flags_t, tree); 7386 extern tree tsubst_template_arg (tree, tree, tsubst_flags_t, tree); 7387 extern tree tsubst_function_parms (tree, tree, tsubst_flags_t, tree); 7388 extern tree most_general_template (tree); 7389 extern tree get_mostly_instantiated_function_type (tree); 7390 extern bool problematic_instantiation_changed (void); 7391 extern void record_last_problematic_instantiation (void); 7392 extern struct tinst_level *current_instantiation(void); 7393 extern bool instantiating_current_function_p (void); 7394 extern tree maybe_get_template_decl_from_type_decl (tree); 7395 extern int processing_template_parmlist; 7396 extern bool dependent_type_p (tree); 7397 extern bool dependent_scope_p (tree); 7398 extern bool dependentish_scope_p (tree); 7399 extern bool any_dependent_template_arguments_p (const_tree); 7400 extern bool any_erroneous_template_args_p (const_tree); 7401 extern bool dependent_template_p (tree); 7402 extern bool dependent_template_id_p (tree, tree); 7403 extern bool type_dependent_expression_p (tree); 7404 extern bool type_dependent_object_expression_p (tree); 7405 extern bool any_type_dependent_arguments_p (const vec<tree, va_gc> *); 7406 extern bool any_type_dependent_elements_p (const_tree); 7407 extern bool type_dependent_expression_p_push (tree); 7408 extern bool value_dependent_expression_p (tree); 7409 extern bool instantiation_dependent_uneval_expression_p (tree); 7410 extern bool any_value_dependent_elements_p (const_tree); 7411 extern bool dependent_omp_for_p (tree, tree, tree, tree); 7412 extern tree resolve_typename_type (tree, bool); 7413 extern tree template_for_substitution (tree); 7414 extern tree build_non_dependent_expr (tree); 7415 extern void make_args_non_dependent (vec<tree, va_gc> *); 7416 extern bool reregister_specialization (tree, tree, tree); 7417 extern tree instantiate_non_dependent_expr (tree); 7418 extern tree instantiate_non_dependent_expr_sfinae (tree, tsubst_flags_t); 7419 extern tree instantiate_non_dependent_expr_internal (tree, tsubst_flags_t); 7420 extern tree instantiate_non_dependent_or_null (tree); 7421 extern bool variable_template_specialization_p (tree); 7422 extern bool alias_type_or_template_p (tree); 7423 enum { nt_opaque = false, nt_transparent = true }; 7424 extern tree alias_template_specialization_p (const_tree, bool); 7425 extern tree dependent_alias_template_spec_p (const_tree, bool); 7426 extern bool template_parm_object_p (const_tree); 7427 extern tree tparm_object_argument (tree); 7428 extern bool explicit_class_specialization_p (tree); 7429 extern bool push_tinst_level (tree); 7430 extern bool push_tinst_level (tree, tree); 7431 extern bool push_tinst_level_loc (tree, location_t); 7432 extern bool push_tinst_level_loc (tree, tree, location_t); 7433 extern void pop_tinst_level (void); 7434 extern struct tinst_level *outermost_tinst_level(void); 7435 extern bool non_templated_friend_p (tree); 7436 extern void init_template_processing (void); 7437 extern void print_template_statistics (void); 7438 bool template_template_parameter_p (const_tree); 7439 bool template_type_parameter_p (const_tree); 7440 extern bool primary_template_specialization_p (const_tree); 7441 extern tree get_primary_template_innermost_parameters (const_tree); 7442 extern tree get_template_innermost_arguments (const_tree); 7443 extern tree get_template_argument_pack_elems (const_tree); 7444 extern tree get_function_template_decl (const_tree); 7445 extern tree resolve_nondeduced_context (tree, tsubst_flags_t); 7446 extern tree resolve_nondeduced_context_or_error (tree, tsubst_flags_t); 7447 extern hashval_t iterative_hash_template_arg (tree arg, hashval_t val); 7448 extern tree coerce_template_parms (tree, tree, tree); 7449 extern tree coerce_template_parms (tree, tree, tree, tsubst_flags_t); 7450 extern tree canonicalize_type_argument (tree, tsubst_flags_t); 7451 extern void register_local_specialization (tree, tree); 7452 extern tree retrieve_local_specialization (tree); 7453 extern tree extract_fnparm_pack (tree, tree *); 7454 extern tree template_parm_to_arg (tree); 7455 extern tree dguide_name (tree); 7456 extern bool dguide_name_p (tree); 7457 extern bool deduction_guide_p (const_tree); 7458 extern bool copy_guide_p (const_tree); 7459 extern bool template_guide_p (const_tree); 7460 extern bool builtin_guide_p (const_tree); 7461 extern void store_explicit_specifier (tree, tree); 7462 extern tree lookup_explicit_specifier (tree); 7463 extern void walk_specializations (bool, 7464 void (*)(bool, spec_entry *, 7465 void *), 7466 void *); 7467 extern tree match_mergeable_specialization (bool is_decl, spec_entry *); 7468 extern unsigned get_mergeable_specialization_flags (tree tmpl, tree spec); 7469 extern void add_mergeable_specialization (bool is_decl, bool is_alias, 7470 spec_entry *, 7471 tree outer, unsigned); 7472 extern tree add_to_template_args (tree, tree); 7473 extern tree add_outermost_template_args (tree, tree); 7474 extern tree add_extra_args (tree, tree, tsubst_flags_t, tree); 7475 extern tree build_extra_args (tree, tree, tsubst_flags_t); 7476 7477 /* in rtti.cc */ 7478 /* A vector of all tinfo decls that haven't been emitted yet. */ 7479 extern GTY(()) vec<tree, va_gc> *unemitted_tinfo_decls; 7480 7481 extern void init_rtti_processing (void); 7482 extern tree build_typeid (tree, tsubst_flags_t); 7483 extern tree get_tinfo_decl_direct (tree, tree, int); 7484 extern tree get_tinfo_decl (tree); 7485 extern tree get_typeid (tree, tsubst_flags_t); 7486 extern tree build_headof (tree); 7487 extern tree build_dynamic_cast (location_t, tree, tree, 7488 tsubst_flags_t); 7489 extern void emit_support_tinfos (void); 7490 extern bool emit_tinfo_decl (tree); 7491 extern unsigned get_pseudo_tinfo_index (tree); 7492 extern tree get_pseudo_tinfo_type (unsigned); 7493 extern tree build_if_nonnull (tree, tree, tsubst_flags_t); 7494 7495 /* in search.cc */ 7496 extern tree get_parent_with_private_access (tree decl, tree binfo); 7497 extern bool accessible_base_p (tree, tree, bool); 7498 extern tree lookup_base (tree, tree, base_access, 7499 base_kind *, tsubst_flags_t); 7500 extern tree dcast_base_hint (tree, tree); 7501 extern int accessible_p (tree, tree, bool); 7502 extern int accessible_in_template_p (tree, tree); 7503 extern tree lookup_field (tree, tree, int, bool); 7504 extern tree lookup_fnfields (tree, tree, int, tsubst_flags_t); 7505 extern tree lookup_member (tree, tree, int, bool, 7506 tsubst_flags_t, 7507 access_failure_info *afi = NULL); 7508 extern tree lookup_member_fuzzy (tree, tree, bool); 7509 extern tree locate_field_accessor (tree, tree, bool); 7510 extern int look_for_overrides (tree, tree); 7511 extern void get_pure_virtuals (tree); 7512 extern void maybe_suppress_debug_info (tree); 7513 extern void note_debug_info_needed (tree); 7514 extern tree current_scope (void); 7515 extern int at_function_scope_p (void); 7516 extern bool at_class_scope_p (void); 7517 extern bool at_namespace_scope_p (void); 7518 extern tree context_for_name_lookup (tree); 7519 extern tree lookup_conversions (tree); 7520 extern tree binfo_from_vbase (tree); 7521 extern tree binfo_for_vbase (tree, tree); 7522 extern tree look_for_overrides_here (tree, tree); 7523 #define dfs_skip_bases ((tree)1) 7524 extern tree dfs_walk_all (tree, tree (*) (tree, void *), 7525 tree (*) (tree, void *), void *); 7526 extern tree dfs_walk_once (tree, tree (*) (tree, void *), 7527 tree (*) (tree, void *), void *); 7528 extern tree binfo_via_virtual (tree, tree); 7529 extern bool binfo_direct_p (tree); 7530 extern tree build_baselink (tree, tree, tree, tree); 7531 extern tree adjust_result_of_qualified_name_lookup 7532 (tree, tree, tree); 7533 extern tree copied_binfo (tree, tree); 7534 extern tree original_binfo (tree, tree); 7535 extern bool shared_member_p (tree); 7536 extern bool any_dependent_bases_p (tree = current_nonlambda_class_type ()); 7537 extern bool maybe_check_overriding_exception_spec (tree, tree); 7538 7539 /* in semantics.cc */ 7540 extern void push_deferring_access_checks (deferring_kind); 7541 extern void resume_deferring_access_checks (void); 7542 extern void stop_deferring_access_checks (void); 7543 extern void pop_deferring_access_checks (void); 7544 extern vec<deferred_access_check, va_gc> *get_deferred_access_checks (void); 7545 extern void reopen_deferring_access_checks (vec<deferred_access_check, va_gc> *); 7546 extern void pop_to_parent_deferring_access_checks (void); 7547 extern bool perform_access_checks (vec<deferred_access_check, va_gc> *, 7548 tsubst_flags_t); 7549 extern bool perform_deferred_access_checks (tsubst_flags_t); 7550 extern bool perform_or_defer_access_check (tree, tree, tree, 7551 tsubst_flags_t, 7552 access_failure_info *afi = NULL); 7553 7554 /* RAII sentinel to ensures that deferred access checks are popped before 7555 a function returns. */ 7556 7557 class deferring_access_check_sentinel 7558 { 7559 public: 7560 deferring_access_check_sentinel (enum deferring_kind kind = dk_deferred) 7561 { 7562 push_deferring_access_checks (kind); 7563 } 7564 ~deferring_access_check_sentinel () 7565 { 7566 pop_deferring_access_checks (); 7567 } 7568 }; 7569 7570 extern int stmts_are_full_exprs_p (void); 7571 extern void init_cp_semantics (void); 7572 extern tree do_poplevel (tree); 7573 extern void break_maybe_infinite_loop (void); 7574 extern void add_decl_expr (tree); 7575 extern tree maybe_cleanup_point_expr_void (tree); 7576 extern tree finish_expr_stmt (tree); 7577 extern tree begin_if_stmt (void); 7578 extern tree finish_if_stmt_cond (tree, tree); 7579 extern tree finish_then_clause (tree); 7580 extern void begin_else_clause (tree); 7581 extern void finish_else_clause (tree); 7582 extern void finish_if_stmt (tree); 7583 extern tree begin_while_stmt (void); 7584 extern void finish_while_stmt_cond (tree, tree, bool, unsigned short); 7585 extern void finish_while_stmt (tree); 7586 extern tree begin_do_stmt (void); 7587 extern void finish_do_body (tree); 7588 extern void finish_do_stmt (tree, tree, bool, unsigned short); 7589 extern tree finish_return_stmt (tree); 7590 extern tree begin_for_scope (tree *); 7591 extern tree begin_for_stmt (tree, tree); 7592 extern void finish_init_stmt (tree); 7593 extern void finish_for_cond (tree, tree, bool, unsigned short); 7594 extern void finish_for_expr (tree, tree); 7595 extern void finish_for_stmt (tree); 7596 extern tree begin_range_for_stmt (tree, tree); 7597 extern void finish_range_for_decl (tree, tree, tree); 7598 extern void finish_range_for_stmt (tree); 7599 extern tree finish_break_stmt (void); 7600 extern tree finish_continue_stmt (void); 7601 extern tree begin_switch_stmt (void); 7602 extern void finish_switch_cond (tree, tree); 7603 extern void finish_switch_stmt (tree); 7604 extern tree finish_goto_stmt (tree); 7605 extern tree begin_try_block (void); 7606 extern void finish_try_block (tree); 7607 extern void finish_handler_sequence (tree); 7608 extern tree begin_function_try_block (tree *); 7609 extern void finish_function_try_block (tree); 7610 extern void finish_function_handler_sequence (tree, tree); 7611 extern void finish_cleanup_try_block (tree); 7612 extern tree begin_handler (void); 7613 extern void finish_handler_parms (tree, tree); 7614 extern void finish_handler (tree); 7615 extern void finish_cleanup (tree, tree); 7616 extern bool is_this_parameter (tree); 7617 7618 enum { 7619 BCS_NORMAL = 0, 7620 BCS_NO_SCOPE = 1, 7621 BCS_TRY_BLOCK = 2, 7622 BCS_FN_BODY = 4, 7623 BCS_TRANSACTION = 8 7624 }; 7625 extern tree begin_compound_stmt (unsigned int); 7626 7627 extern void finish_compound_stmt (tree); 7628 extern tree finish_asm_stmt (location_t, int, tree, tree, 7629 tree, tree, tree, bool); 7630 extern tree finish_label_stmt (tree); 7631 extern void finish_label_decl (tree); 7632 extern cp_expr finish_parenthesized_expr (cp_expr); 7633 extern tree force_paren_expr (tree, bool = false); 7634 inline tree force_paren_expr_uneval (tree t) 7635 { return force_paren_expr (t, true); } 7636 extern tree maybe_undo_parenthesized_ref (tree); 7637 extern tree maybe_strip_ref_conversion (tree); 7638 extern tree finish_non_static_data_member (tree, tree, tree); 7639 extern tree begin_stmt_expr (void); 7640 extern tree finish_stmt_expr_expr (tree, tree); 7641 extern tree finish_stmt_expr (tree, bool); 7642 extern tree stmt_expr_value_expr (tree); 7643 bool empty_expr_stmt_p (tree); 7644 extern cp_expr perform_koenig_lookup (cp_expr, vec<tree, va_gc> *, 7645 tsubst_flags_t); 7646 extern tree finish_call_expr (tree, vec<tree, va_gc> **, bool, 7647 bool, tsubst_flags_t); 7648 extern tree lookup_and_finish_template_variable (tree, tree, tsubst_flags_t = tf_warning_or_error); 7649 extern tree finish_template_variable (tree, tsubst_flags_t = tf_warning_or_error); 7650 extern cp_expr finish_increment_expr (cp_expr, enum tree_code); 7651 extern tree finish_this_expr (void); 7652 extern tree finish_pseudo_destructor_expr (tree, tree, tree, location_t); 7653 extern cp_expr finish_unary_op_expr (location_t, enum tree_code, cp_expr, 7654 tsubst_flags_t); 7655 /* Whether this call to finish_compound_literal represents a C++11 functional 7656 cast or a C99 compound literal. */ 7657 enum fcl_t { fcl_functional, fcl_c99 }; 7658 extern tree finish_compound_literal (tree, tree, tsubst_flags_t, fcl_t = fcl_functional); 7659 extern tree finish_fname (tree); 7660 extern void finish_translation_unit (void); 7661 extern tree finish_template_type_parm (tree, tree); 7662 extern tree finish_template_template_parm (tree, tree); 7663 extern tree begin_class_definition (tree); 7664 extern void finish_template_decl (tree); 7665 extern tree finish_template_type (tree, tree, int); 7666 extern tree finish_base_specifier (tree, tree, bool); 7667 extern void finish_member_declaration (tree); 7668 extern bool outer_automatic_var_p (tree); 7669 extern tree process_outer_var_ref (tree, tsubst_flags_t, bool force_use = false); 7670 extern cp_expr finish_id_expression (tree, tree, tree, 7671 cp_id_kind *, 7672 bool, bool, bool *, 7673 bool, bool, bool, bool, 7674 const char **, 7675 location_t); 7676 extern tree finish_typeof (tree); 7677 extern tree finish_underlying_type (tree); 7678 extern tree calculate_bases (tree, tsubst_flags_t); 7679 extern tree finish_bases (tree, bool); 7680 extern tree calculate_direct_bases (tree, tsubst_flags_t); 7681 extern tree finish_offsetof (tree, tree, location_t); 7682 extern void finish_decl_cleanup (tree, tree); 7683 extern void finish_eh_cleanup (tree); 7684 extern void emit_associated_thunks (tree); 7685 extern void finish_mem_initializers (tree); 7686 extern tree check_template_template_default_arg (tree); 7687 extern bool expand_or_defer_fn_1 (tree); 7688 extern void expand_or_defer_fn (tree); 7689 extern bool check_accessibility_of_qualified_id (tree, tree, tree, tsubst_flags_t); 7690 extern tree finish_qualified_id_expr (tree, tree, bool, bool, 7691 bool, bool, tsubst_flags_t); 7692 extern void simplify_aggr_init_expr (tree *); 7693 extern void finalize_nrv (tree *, tree, tree); 7694 extern tree omp_reduction_id (enum tree_code, tree, tree); 7695 extern tree cp_remove_omp_priv_cleanup_stmt (tree *, int *, void *); 7696 extern bool cp_check_omp_declare_reduction (tree); 7697 extern void finish_omp_declare_simd_methods (tree); 7698 extern tree finish_omp_clauses (tree, enum c_omp_region_type); 7699 extern tree push_omp_privatization_clauses (bool); 7700 extern void pop_omp_privatization_clauses (tree); 7701 extern void save_omp_privatization_clauses (vec<tree> &); 7702 extern void restore_omp_privatization_clauses (vec<tree> &); 7703 extern void finish_omp_threadprivate (tree); 7704 extern tree begin_omp_structured_block (void); 7705 extern tree finish_omp_structured_block (tree); 7706 extern tree finish_oacc_data (tree, tree); 7707 extern tree finish_oacc_host_data (tree, tree); 7708 extern tree finish_omp_construct (enum tree_code, tree, tree); 7709 extern tree begin_omp_parallel (void); 7710 extern tree finish_omp_parallel (tree, tree); 7711 extern tree begin_omp_task (void); 7712 extern tree finish_omp_task (tree, tree); 7713 extern tree finish_omp_for (location_t, enum tree_code, 7714 tree, tree, tree, tree, tree, 7715 tree, tree, vec<tree> *, tree); 7716 extern tree finish_omp_for_block (tree, tree); 7717 extern void finish_omp_atomic (location_t, enum tree_code, 7718 enum tree_code, tree, tree, 7719 tree, tree, tree, tree, tree, 7720 enum omp_memory_order, bool); 7721 extern void finish_omp_barrier (void); 7722 extern void finish_omp_depobj (location_t, tree, 7723 enum omp_clause_depend_kind, 7724 tree); 7725 extern void finish_omp_flush (int); 7726 extern void finish_omp_taskwait (void); 7727 extern void finish_omp_taskyield (void); 7728 extern void finish_omp_cancel (tree); 7729 extern void finish_omp_cancellation_point (tree); 7730 extern tree omp_privatize_field (tree, bool); 7731 extern tree begin_transaction_stmt (location_t, tree *, int); 7732 extern void finish_transaction_stmt (tree, tree, int, tree); 7733 extern tree build_transaction_expr (location_t, tree, int, tree); 7734 extern bool cxx_omp_create_clause_info (tree, tree, bool, bool, 7735 bool, bool); 7736 extern tree baselink_for_fns (tree); 7737 extern void finish_static_assert (tree, tree, location_t, 7738 bool, bool); 7739 extern tree finish_decltype_type (tree, bool, tsubst_flags_t); 7740 extern tree fold_builtin_is_corresponding_member (location_t, int, tree *); 7741 extern tree fold_builtin_is_pointer_inverconvertible_with_class (location_t, int, tree *); 7742 extern tree finish_trait_expr (location_t, enum cp_trait_kind, tree, tree); 7743 extern tree build_lambda_expr (void); 7744 extern tree build_lambda_object (tree); 7745 extern tree begin_lambda_type (tree); 7746 extern tree lambda_capture_field_type (tree, bool, bool); 7747 extern tree lambda_proxy_type (tree); 7748 extern tree lambda_function (tree); 7749 extern void apply_deduced_return_type (tree, tree); 7750 extern tree add_capture (tree, tree, tree, bool, bool); 7751 extern tree add_default_capture (tree, tree, tree); 7752 extern void insert_capture_proxy (tree); 7753 extern void insert_pending_capture_proxies (void); 7754 extern bool is_capture_proxy (tree); 7755 extern bool is_normal_capture_proxy (tree); 7756 extern bool is_constant_capture_proxy (tree); 7757 extern void register_capture_members (tree); 7758 extern tree lambda_expr_this_capture (tree, int); 7759 extern void maybe_generic_this_capture (tree, tree); 7760 extern tree maybe_resolve_dummy (tree, bool); 7761 extern tree current_nonlambda_function (void); 7762 extern tree nonlambda_method_basetype (void); 7763 extern tree current_nonlambda_scope (void); 7764 extern tree current_lambda_expr (void); 7765 extern bool generic_lambda_fn_p (tree); 7766 extern tree do_dependent_capture (tree, bool = false); 7767 extern bool lambda_fn_in_template_p (tree); 7768 extern void maybe_add_lambda_conv_op (tree); 7769 extern bool is_lambda_ignored_entity (tree); 7770 extern bool lambda_static_thunk_p (tree); 7771 extern bool call_from_lambda_thunk_p (tree); 7772 extern tree finish_builtin_launder (location_t, tree, 7773 tsubst_flags_t); 7774 extern tree cp_build_vec_convert (tree, location_t, tree, 7775 tsubst_flags_t); 7776 extern tree cp_build_bit_cast (location_t, tree, tree, 7777 tsubst_flags_t); 7778 extern void start_lambda_scope (tree); 7779 extern void record_lambda_scope (tree); 7780 extern void record_null_lambda_scope (tree); 7781 extern void finish_lambda_scope (void); 7782 extern tree start_lambda_function (tree fn, tree lambda_expr); 7783 extern void finish_lambda_function (tree body); 7784 extern bool regenerated_lambda_fn_p (tree); 7785 extern tree lambda_regenerating_args (tree); 7786 extern tree most_general_lambda (tree); 7787 extern tree finish_omp_target (location_t, tree, tree, bool); 7788 extern void finish_omp_target_clauses (location_t, tree, tree *); 7789 7790 /* in tree.cc */ 7791 extern int cp_tree_operand_length (const_tree); 7792 extern int cp_tree_code_length (enum tree_code); 7793 extern void cp_free_lang_data (tree t); 7794 extern tree force_target_expr (tree, tree, tsubst_flags_t); 7795 extern tree build_target_expr_with_type (tree, tree, tsubst_flags_t); 7796 extern void lang_check_failed (const char *, int, 7797 const char *) ATTRIBUTE_NORETURN 7798 ATTRIBUTE_COLD; 7799 extern tree stabilize_expr (tree, tree *); 7800 extern void stabilize_call (tree, tree *); 7801 extern bool stabilize_init (tree, tree *); 7802 extern tree add_stmt_to_compound (tree, tree); 7803 extern void init_tree (void); 7804 extern bool pod_type_p (const_tree); 7805 extern bool layout_pod_type_p (const_tree); 7806 extern bool std_layout_type_p (const_tree); 7807 extern bool trivial_type_p (const_tree); 7808 extern bool trivially_copyable_p (const_tree); 7809 extern bool type_has_unique_obj_representations (const_tree); 7810 extern bool scalarish_type_p (const_tree); 7811 extern bool structural_type_p (tree, bool = false); 7812 extern bool type_has_nontrivial_default_init (const_tree); 7813 extern bool type_has_nontrivial_copy_init (const_tree); 7814 extern void maybe_warn_parm_abi (tree, location_t); 7815 extern bool class_tmpl_impl_spec_p (const_tree); 7816 extern int zero_init_p (const_tree); 7817 extern bool zero_init_expr_p (tree); 7818 extern bool check_abi_tag_redeclaration (const_tree, const_tree, 7819 const_tree); 7820 extern bool check_abi_tag_args (tree, tree); 7821 extern tree strip_typedefs (tree, bool * = NULL, 7822 unsigned int = 0); 7823 extern tree strip_typedefs_expr (tree, bool * = NULL, 7824 unsigned int = 0); 7825 extern tree copy_binfo (tree, tree, tree, 7826 tree *, int); 7827 extern int member_p (const_tree); 7828 extern cp_lvalue_kind real_lvalue_p (const_tree); 7829 extern cp_lvalue_kind lvalue_kind (const_tree); 7830 extern bool glvalue_p (const_tree); 7831 extern bool obvalue_p (const_tree); 7832 extern bool xvalue_p (const_tree); 7833 extern bool bitfield_p (const_tree); 7834 extern tree cp_stabilize_reference (tree); 7835 extern bool builtin_valid_in_constant_expr_p (const_tree); 7836 extern tree build_min (enum tree_code, tree, ...); 7837 extern tree build_min_nt_loc (location_t, enum tree_code, 7838 ...); 7839 extern tree build_min_non_dep (enum tree_code, tree, ...); 7840 extern tree build_min_non_dep_op_overload (enum tree_code, tree, tree, ...); 7841 extern tree build_min_non_dep_op_overload (tree, tree, tree, 7842 vec<tree, va_gc> *); 7843 extern tree build_min_nt_call_vec (tree, vec<tree, va_gc> *); 7844 extern tree build_min_non_dep_call_vec (tree, tree, vec<tree, va_gc> *); 7845 extern vec<tree, va_gc>* vec_copy_and_insert (vec<tree, va_gc>*, tree, unsigned); 7846 extern tree build_cplus_new (tree, tree, tsubst_flags_t); 7847 extern tree build_local_temp (tree); 7848 extern bool is_local_temp (tree); 7849 extern tree build_aggr_init_expr (tree, tree); 7850 extern tree get_target_expr (tree); 7851 extern tree get_target_expr_sfinae (tree, tsubst_flags_t); 7852 extern tree build_cplus_array_type (tree, tree, int is_dep = -1); 7853 extern tree build_array_of_n_type (tree, int); 7854 extern bool array_of_runtime_bound_p (tree); 7855 extern bool vla_type_p (tree); 7856 extern tree build_array_copy (tree); 7857 extern tree build_vec_init_expr (tree, tree, tsubst_flags_t); 7858 extern tree expand_vec_init_expr (tree, tree, tsubst_flags_t, 7859 vec<tree,va_gc>** = nullptr); 7860 extern void diagnose_non_constexpr_vec_init (tree); 7861 extern tree hash_tree_cons (tree, tree, tree); 7862 extern tree hash_tree_chain (tree, tree); 7863 extern tree build_qualified_name (tree, tree, tree, bool); 7864 extern tree build_ref_qualified_type (tree, cp_ref_qualifier); 7865 extern tree make_binding_vec (tree, unsigned clusters CXX_MEM_STAT_INFO); 7866 inline tree ovl_first (tree) ATTRIBUTE_PURE; 7867 extern tree ovl_make (tree fn, 7868 tree next = NULL_TREE); 7869 extern tree ovl_insert (tree fn, tree maybe_ovl, 7870 int using_or_hidden = 0); 7871 extern tree ovl_skip_hidden (tree) ATTRIBUTE_PURE; 7872 extern void lookup_mark (tree lookup, bool val); 7873 extern tree lookup_add (tree fns, tree lookup); 7874 extern tree lookup_maybe_add (tree fns, tree lookup, 7875 bool deduping); 7876 extern int is_overloaded_fn (tree) ATTRIBUTE_PURE; 7877 extern bool really_overloaded_fn (tree) ATTRIBUTE_PURE; 7878 extern tree dependent_name (tree); 7879 extern tree call_expr_dependent_name (tree); 7880 extern tree maybe_get_fns (tree) ATTRIBUTE_PURE; 7881 extern tree get_fns (tree) ATTRIBUTE_PURE; 7882 extern tree get_first_fn (tree) ATTRIBUTE_PURE; 7883 extern tree ovl_scope (tree); 7884 extern const char *cxx_printable_name (tree, int); 7885 extern const char *cxx_printable_name_translate (tree, int); 7886 extern tree canonical_eh_spec (tree); 7887 extern tree build_cp_fntype_variant (tree, cp_ref_qualifier, tree, bool); 7888 extern tree build_exception_variant (tree, tree); 7889 extern void fixup_deferred_exception_variants (tree, tree); 7890 extern tree bind_template_template_parm (tree, tree); 7891 extern tree array_type_nelts_total (tree); 7892 extern tree array_type_nelts_top (tree); 7893 extern bool array_of_unknown_bound_p (const_tree); 7894 extern bool source_location_current_p (tree); 7895 extern tree break_out_target_exprs (tree, bool = false); 7896 extern tree build_ctor_subob_ref (tree, tree, tree); 7897 extern tree replace_placeholders (tree, tree, bool * = NULL); 7898 extern bool find_placeholders (tree); 7899 extern tree get_type_decl (tree); 7900 extern tree decl_namespace_context (tree); 7901 extern bool decl_anon_ns_mem_p (const_tree); 7902 extern tree lvalue_type (tree); 7903 extern tree error_type (tree); 7904 extern int varargs_function_p (const_tree); 7905 extern bool cp_tree_equal (tree, tree); 7906 extern tree no_linkage_check (tree, bool); 7907 extern void debug_binfo (tree); 7908 extern tree build_dummy_object (tree); 7909 extern tree maybe_dummy_object (tree, tree *); 7910 extern bool is_dummy_object (const_tree); 7911 extern bool is_byte_access_type (tree); 7912 extern bool is_byte_access_type_not_plain_char (tree); 7913 extern const struct attribute_spec cxx_attribute_table[]; 7914 extern tree make_ptrmem_cst (tree, tree); 7915 extern tree cp_build_type_attribute_variant (tree, tree); 7916 extern tree cp_build_reference_type (tree, bool); 7917 extern tree move (tree); 7918 extern tree cp_build_qualified_type_real (tree, int, tsubst_flags_t); 7919 #define cp_build_qualified_type(TYPE, QUALS) \ 7920 cp_build_qualified_type_real ((TYPE), (QUALS), tf_warning_or_error) 7921 extern bool cv_qualified_p (const_tree); 7922 extern tree cv_unqualified (tree); 7923 extern special_function_kind special_function_p (const_tree); 7924 extern special_function_kind special_memfn_p (const_tree); 7925 extern int count_trees (tree); 7926 extern int char_type_p (tree); 7927 extern void verify_stmt_tree (tree); 7928 extern linkage_kind decl_linkage (tree); 7929 extern duration_kind decl_storage_duration (tree); 7930 extern tree cp_walk_subtrees (tree*, int*, walk_tree_fn, 7931 void*, hash_set<tree> *); 7932 #define cp_walk_tree(tp,func,data,pset) \ 7933 walk_tree_1 (tp, func, data, pset, cp_walk_subtrees) 7934 #define cp_walk_tree_without_duplicates(tp,func,data) \ 7935 walk_tree_without_duplicates_1 (tp, func, data, cp_walk_subtrees) 7936 extern tree rvalue (tree); 7937 extern tree convert_bitfield_to_declared_type (tree); 7938 extern tree cp_save_expr (tree); 7939 extern bool cast_valid_in_integral_constant_expression_p (tree); 7940 extern bool cxx_type_hash_eq (const_tree, const_tree); 7941 extern tree cxx_copy_lang_qualifiers (const_tree, const_tree); 7942 7943 extern void cxx_print_statistics (void); 7944 extern bool maybe_warn_zero_as_null_pointer_constant (tree, location_t); 7945 7946 /* in ptree.cc */ 7947 extern void cxx_print_xnode (FILE *, tree, int); 7948 extern void cxx_print_decl (FILE *, tree, int); 7949 extern void cxx_print_type (FILE *, tree, int); 7950 extern void cxx_print_identifier (FILE *, tree, int); 7951 extern void cxx_print_error_function (diagnostic_context *, 7952 const char *, 7953 struct diagnostic_info *); 7954 7955 /* in typeck.cc */ 7956 /* Says how we should behave when comparing two arrays one of which 7957 has unknown bounds. */ 7958 enum compare_bounds_t { bounds_none, bounds_either, bounds_first }; 7959 7960 extern bool cxx_mark_addressable (tree, bool = false); 7961 extern int string_conv_p (const_tree, const_tree, int); 7962 extern tree cp_truthvalue_conversion (tree, tsubst_flags_t); 7963 extern tree contextual_conv_bool (tree, tsubst_flags_t); 7964 extern tree condition_conversion (tree); 7965 extern tree require_complete_type (tree); 7966 extern tree require_complete_type_sfinae (tree, tsubst_flags_t); 7967 extern tree complete_type (tree); 7968 extern tree complete_type_or_else (tree, tree); 7969 extern tree complete_type_or_maybe_complain (tree, tree, tsubst_flags_t); 7970 inline bool type_unknown_p (const_tree); 7971 enum { ce_derived, ce_type, ce_normal, ce_exact }; 7972 extern bool comp_except_specs (const_tree, const_tree, int); 7973 extern bool comptypes (tree, tree, int); 7974 extern bool same_type_ignoring_top_level_qualifiers_p (tree, tree); 7975 extern bool similar_type_p (tree, tree); 7976 extern bool next_common_initial_sequence (tree &, tree &); 7977 extern bool layout_compatible_type_p (tree, tree); 7978 extern bool compparms (const_tree, const_tree); 7979 extern int comp_cv_qualification (const_tree, const_tree); 7980 extern int comp_cv_qualification (int, int); 7981 extern int comp_cv_qual_signature (tree, tree); 7982 extern tree cxx_sizeof_or_alignof_expr (location_t, tree, 7983 enum tree_code, bool, bool); 7984 extern tree cxx_sizeof_or_alignof_type (location_t, tree, 7985 enum tree_code, bool, bool); 7986 extern tree cxx_alignas_expr (tree); 7987 extern tree cxx_sizeof_nowarn (tree); 7988 extern tree is_bitfield_expr_with_lowered_type (const_tree); 7989 extern tree unlowered_expr_type (const_tree); 7990 extern tree decay_conversion (tree, 7991 tsubst_flags_t, 7992 bool = true); 7993 extern tree build_class_member_access_expr (cp_expr, tree, tree, bool, 7994 tsubst_flags_t); 7995 extern tree finish_class_member_access_expr (cp_expr, tree, bool, 7996 tsubst_flags_t); 7997 extern tree lookup_destructor (tree, tree, tree, tsubst_flags_t); 7998 extern tree build_dependent_operator_type (tree, enum tree_code, bool); 7999 extern tree build_x_indirect_ref (location_t, tree, 8000 ref_operator, tree, 8001 tsubst_flags_t); 8002 extern tree cp_build_indirect_ref (location_t, tree, 8003 ref_operator, 8004 tsubst_flags_t); 8005 extern tree cp_build_fold_indirect_ref (tree); 8006 extern tree build_array_ref (location_t, tree, tree); 8007 extern tree cp_build_array_ref (location_t, tree, tree, 8008 tsubst_flags_t); 8009 extern tree get_member_function_from_ptrfunc (tree *, tree, tsubst_flags_t); 8010 extern tree cp_build_function_call_nary (tree, tsubst_flags_t, ...) 8011 ATTRIBUTE_SENTINEL; 8012 extern tree cp_build_function_call_vec (tree, vec<tree, va_gc> **, 8013 tsubst_flags_t, 8014 tree = NULL_TREE); 8015 extern tree build_x_binary_op (const op_location_t &, 8016 enum tree_code, tree, 8017 enum tree_code, tree, 8018 enum tree_code, tree, 8019 tree *, tsubst_flags_t); 8020 inline tree build_x_binary_op (const op_location_t &loc, 8021 enum tree_code code, tree arg1, tree arg2, 8022 tsubst_flags_t complain) 8023 { 8024 return build_x_binary_op (loc, code, arg1, TREE_CODE (arg1), arg2, 8025 TREE_CODE (arg2), NULL_TREE, NULL, complain); 8026 } 8027 extern tree build_x_array_ref (location_t, tree, tree, 8028 tsubst_flags_t); 8029 extern tree build_x_unary_op (location_t, 8030 enum tree_code, cp_expr, 8031 tree, tsubst_flags_t); 8032 extern tree cp_build_addressof (location_t, tree, 8033 tsubst_flags_t); 8034 extern tree cp_build_addr_expr (tree, tsubst_flags_t); 8035 extern tree cp_build_unary_op (enum tree_code, tree, bool, 8036 tsubst_flags_t); 8037 extern tree genericize_compound_lvalue (tree); 8038 extern tree unary_complex_lvalue (enum tree_code, tree); 8039 extern tree build_x_conditional_expr (location_t, tree, tree, tree, 8040 tsubst_flags_t); 8041 extern tree build_x_compound_expr_from_list (tree, expr_list_kind, 8042 tsubst_flags_t); 8043 extern tree build_x_compound_expr_from_vec (vec<tree, va_gc> *, 8044 const char *, tsubst_flags_t); 8045 extern tree build_x_compound_expr (location_t, tree, tree, 8046 tree, tsubst_flags_t); 8047 extern tree build_compound_expr (location_t, tree, tree); 8048 extern tree cp_build_compound_expr (tree, tree, tsubst_flags_t); 8049 extern tree build_static_cast (location_t, tree, tree, 8050 tsubst_flags_t); 8051 extern tree build_reinterpret_cast (location_t, tree, tree, 8052 tsubst_flags_t); 8053 extern tree build_const_cast (location_t, tree, tree, 8054 tsubst_flags_t); 8055 extern tree build_c_cast (location_t, tree, tree); 8056 extern cp_expr build_c_cast (location_t loc, tree type, 8057 cp_expr expr); 8058 extern tree cp_build_c_cast (location_t, tree, tree, 8059 tsubst_flags_t); 8060 extern cp_expr build_x_modify_expr (location_t, tree, 8061 enum tree_code, tree, 8062 tree, tsubst_flags_t); 8063 extern tree cp_build_modify_expr (location_t, tree, 8064 enum tree_code, tree, 8065 tsubst_flags_t); 8066 extern tree convert_for_initialization (tree, tree, tree, int, 8067 impl_conv_rhs, tree, int, 8068 tsubst_flags_t); 8069 extern int comp_ptr_ttypes (tree, tree); 8070 extern bool comp_ptr_ttypes_const (tree, tree, compare_bounds_t); 8071 extern bool error_type_p (const_tree); 8072 extern bool ptr_reasonably_similar (const_tree, const_tree); 8073 extern tree build_ptrmemfunc (tree, tree, int, bool, 8074 tsubst_flags_t); 8075 extern int cp_type_quals (const_tree); 8076 extern int type_memfn_quals (const_tree); 8077 extern cp_ref_qualifier type_memfn_rqual (const_tree); 8078 extern tree apply_memfn_quals (tree, cp_cv_quals, 8079 cp_ref_qualifier = REF_QUAL_NONE); 8080 extern bool cp_has_mutable_p (const_tree); 8081 extern bool at_least_as_qualified_p (const_tree, const_tree); 8082 extern void cp_apply_type_quals_to_decl (int, tree); 8083 extern tree build_ptrmemfunc1 (tree, tree, tree); 8084 extern void expand_ptrmemfunc_cst (tree, tree *, tree *); 8085 extern tree type_after_usual_arithmetic_conversions (tree, tree); 8086 extern tree common_pointer_type (tree, tree); 8087 extern tree composite_pointer_type (const op_location_t &, 8088 tree, tree, tree, tree, 8089 composite_pointer_operation, 8090 tsubst_flags_t); 8091 extern tree merge_types (tree, tree); 8092 extern tree strip_array_domain (tree); 8093 extern tree check_return_expr (tree, bool *); 8094 extern tree spaceship_type (tree, tsubst_flags_t = tf_warning_or_error); 8095 extern tree genericize_spaceship (location_t, tree, tree, tree); 8096 extern tree cp_build_binary_op (const op_location_t &, 8097 enum tree_code, tree, tree, 8098 tsubst_flags_t); 8099 extern tree build_x_vec_perm_expr (location_t, 8100 tree, tree, tree, 8101 tsubst_flags_t); 8102 extern tree build_x_shufflevector (location_t, 8103 vec<tree, va_gc> *, 8104 tsubst_flags_t); 8105 #define cxx_sizeof(T) cxx_sizeof_or_alignof_type (input_location, T, SIZEOF_EXPR, false, true) 8106 extern tree build_simple_component_ref (tree, tree); 8107 extern tree build_ptrmemfunc_access_expr (tree, tree); 8108 extern tree build_address (tree); 8109 extern tree build_nop (tree, tree); 8110 extern tree non_reference (tree); 8111 extern tree lookup_anon_field (tree, tree); 8112 extern bool invalid_nonstatic_memfn_p (location_t, tree, 8113 tsubst_flags_t); 8114 extern tree convert_member_func_to_ptr (tree, tree, tsubst_flags_t); 8115 extern tree convert_ptrmem (tree, tree, bool, bool, 8116 tsubst_flags_t); 8117 extern int lvalue_or_else (tree, enum lvalue_use, 8118 tsubst_flags_t); 8119 extern void check_template_keyword (tree); 8120 extern bool check_raw_literal_operator (const_tree decl); 8121 extern bool check_literal_operator_args (const_tree, bool *, bool *); 8122 extern void maybe_warn_about_useless_cast (location_t, tree, tree, 8123 tsubst_flags_t); 8124 extern tree cp_perform_integral_promotions (tree, tsubst_flags_t); 8125 8126 extern tree finish_left_unary_fold_expr (tree, int); 8127 extern tree finish_right_unary_fold_expr (tree, int); 8128 extern tree finish_binary_fold_expr (tree, tree, int); 8129 extern tree treat_lvalue_as_rvalue_p (tree, bool); 8130 extern bool decl_in_std_namespace_p (tree); 8131 8132 /* in typeck2.cc */ 8133 extern void require_complete_eh_spec_types (tree, tree); 8134 extern void cxx_incomplete_type_diagnostic (location_t, const_tree, 8135 const_tree, diagnostic_t); 8136 inline location_t 8137 loc_or_input_loc (location_t loc) 8138 { 8139 return loc == UNKNOWN_LOCATION ? input_location : loc; 8140 } 8141 8142 inline location_t 8143 cp_expr_loc_or_loc (const_tree t, location_t or_loc) 8144 { 8145 location_t loc = cp_expr_location (t); 8146 if (loc == UNKNOWN_LOCATION) 8147 loc = or_loc; 8148 return loc; 8149 } 8150 8151 inline location_t 8152 cp_expr_loc_or_input_loc (const_tree t) 8153 { 8154 return cp_expr_loc_or_loc (t, input_location); 8155 } 8156 8157 inline void 8158 cxx_incomplete_type_diagnostic (const_tree value, const_tree type, 8159 diagnostic_t diag_kind) 8160 { 8161 cxx_incomplete_type_diagnostic (cp_expr_loc_or_input_loc (value), 8162 value, type, diag_kind); 8163 } 8164 8165 extern void cxx_incomplete_type_error (location_t, const_tree, 8166 const_tree); 8167 inline void 8168 cxx_incomplete_type_error (const_tree value, const_tree type) 8169 { 8170 cxx_incomplete_type_diagnostic (value, type, DK_ERROR); 8171 } 8172 8173 extern void cxx_incomplete_type_inform (const_tree); 8174 extern tree error_not_base_type (tree, tree); 8175 extern tree binfo_or_else (tree, tree); 8176 extern void cxx_readonly_error (location_t, tree, 8177 enum lvalue_use); 8178 extern void complete_type_check_abstract (tree); 8179 extern int abstract_virtuals_error (tree, tree); 8180 extern int abstract_virtuals_error (abstract_class_use, tree); 8181 extern int abstract_virtuals_error_sfinae (tree, tree, tsubst_flags_t); 8182 extern int abstract_virtuals_error_sfinae (abstract_class_use, tree, tsubst_flags_t); 8183 8184 extern tree store_init_value (tree, tree, vec<tree, va_gc>**, int); 8185 extern tree split_nonconstant_init (tree, tree); 8186 extern bool check_narrowing (tree, tree, tsubst_flags_t, 8187 bool = false); 8188 extern bool ordinary_char_type_p (tree); 8189 extern bool array_string_literal_compatible_p (tree, tree); 8190 extern tree digest_init (tree, tree, tsubst_flags_t); 8191 extern tree digest_init_flags (tree, tree, int, tsubst_flags_t); 8192 extern tree digest_nsdmi_init (tree, tree, tsubst_flags_t); 8193 extern tree build_scoped_ref (tree, tree, tree *); 8194 extern tree build_x_arrow (location_t, tree, 8195 tsubst_flags_t); 8196 extern tree build_m_component_ref (tree, tree, tsubst_flags_t); 8197 extern tree build_functional_cast (location_t, tree, tree, 8198 tsubst_flags_t); 8199 extern tree add_exception_specifier (tree, tree, tsubst_flags_t); 8200 extern tree merge_exception_specifiers (tree, tree); 8201 8202 /* in mangle.cc */ 8203 extern void init_mangle (void); 8204 extern void mangle_decl (tree); 8205 extern const char *mangle_type_string (tree); 8206 extern tree mangle_typeinfo_for_type (tree); 8207 extern tree mangle_typeinfo_string_for_type (tree); 8208 extern tree mangle_vtbl_for_type (tree); 8209 extern tree mangle_vtt_for_type (tree); 8210 extern tree mangle_ctor_vtbl_for_type (tree, tree); 8211 extern tree mangle_thunk (tree, int, tree, tree, tree); 8212 extern tree mangle_guard_variable (tree); 8213 extern tree mangle_tls_init_fn (tree); 8214 extern tree mangle_tls_wrapper_fn (tree); 8215 extern bool decl_tls_wrapper_p (tree); 8216 extern tree mangle_ref_init_variable (tree); 8217 extern tree mangle_template_parm_object (tree); 8218 extern char *get_mangled_vtable_map_var_name (tree); 8219 extern bool mangle_return_type_p (tree); 8220 extern tree mangle_decomp (tree, vec<tree> &); 8221 extern void mangle_module_substitution (int); 8222 extern int mangle_module_component (tree id, bool partition); 8223 extern tree mangle_module_global_init (int); 8224 8225 /* in dump.cc */ 8226 extern bool cp_dump_tree (void *, tree); 8227 8228 /* In cp/cp-objcp-common.cc. */ 8229 8230 extern alias_set_type cxx_get_alias_set (tree); 8231 extern bool cxx_warn_unused_global_decl (const_tree); 8232 extern size_t cp_tree_size (enum tree_code); 8233 extern bool cp_var_mod_type_p (tree, tree); 8234 extern void cxx_initialize_diagnostics (diagnostic_context *); 8235 extern int cxx_types_compatible_p (tree, tree); 8236 extern bool cxx_block_may_fallthru (const_tree); 8237 8238 /* in cp-gimplify.cc */ 8239 extern int cp_gimplify_expr (tree *, gimple_seq *, 8240 gimple_seq *); 8241 extern void cp_genericize (tree); 8242 extern bool cxx_omp_const_qual_no_mutable (tree); 8243 extern enum omp_clause_default_kind cxx_omp_predetermined_sharing_1 (tree); 8244 extern enum omp_clause_default_kind cxx_omp_predetermined_sharing (tree); 8245 extern enum omp_clause_defaultmap_kind cxx_omp_predetermined_mapping (tree); 8246 extern tree cxx_omp_clause_default_ctor (tree, tree, tree); 8247 extern tree cxx_omp_clause_copy_ctor (tree, tree, tree); 8248 extern tree cxx_omp_clause_assign_op (tree, tree, tree); 8249 extern tree cxx_omp_clause_dtor (tree, tree); 8250 extern void cxx_omp_finish_clause (tree, gimple_seq *, bool); 8251 extern bool cxx_omp_privatize_by_reference (const_tree); 8252 extern bool cxx_omp_disregard_value_expr (tree, bool); 8253 extern void cp_fold_function (tree); 8254 extern tree cp_fold_maybe_rvalue (tree, bool); 8255 extern tree cp_fold_rvalue (tree); 8256 extern tree cp_fully_fold (tree); 8257 extern tree cp_fully_fold_init (tree); 8258 extern tree predeclare_vla (tree); 8259 extern void clear_fold_cache (void); 8260 extern tree lookup_hotness_attribute (tree); 8261 extern tree process_stmt_hotness_attribute (tree, location_t); 8262 extern bool simple_empty_class_p (tree, tree, tree_code); 8263 extern tree fold_builtin_source_location (location_t); 8264 8265 /* in name-lookup.cc */ 8266 extern tree strip_using_decl (tree); 8267 extern void diagnose_name_conflict (tree, tree); 8268 extern bool dependent_local_decl_p (tree); 8269 8270 /* Tell the binding oracle what kind of binding we are looking for. */ 8271 8272 enum cp_oracle_request 8273 { 8274 CP_ORACLE_IDENTIFIER 8275 }; 8276 8277 /* If this is non-NULL, then it is a "binding oracle" which can lazily 8278 create bindings when needed by the C compiler. The oracle is told 8279 the name and type of the binding to create. It can call pushdecl 8280 or the like to ensure the binding is visible; or do nothing, 8281 leaving the binding untouched. c-decl.cc takes note of when the 8282 oracle has been called and will not call it again if it fails to 8283 create a given binding. */ 8284 8285 typedef void cp_binding_oracle_function (enum cp_oracle_request, tree identifier); 8286 8287 extern cp_binding_oracle_function *cp_binding_oracle; 8288 8289 /* Set during diagnostics to record the failed constraint. This is a 8290 TREE_LIST whose VALUE is the constraint and whose PURPOSE are the 8291 instantiation arguments Defined in pt.cc. */ 8292 8293 extern tree current_failed_constraint; 8294 8295 /* An RAII class to manage the failed constraint. */ 8296 8297 struct diagnosing_failed_constraint 8298 { 8299 diagnosing_failed_constraint (tree, tree, bool); 8300 ~diagnosing_failed_constraint (); 8301 static bool replay_errors_p (); 8302 8303 bool diagnosing_error; 8304 }; 8305 8306 /* in constraint.cc */ 8307 8308 extern cp_expr finish_constraint_or_expr (location_t, cp_expr, cp_expr); 8309 extern cp_expr finish_constraint_and_expr (location_t, cp_expr, cp_expr); 8310 extern cp_expr finish_constraint_primary_expr (cp_expr); 8311 extern tree finish_concept_definition (cp_expr, tree); 8312 extern tree combine_constraint_expressions (tree, tree); 8313 extern tree append_constraint (tree, tree); 8314 extern tree get_constraints (const_tree); 8315 extern void set_constraints (tree, tree); 8316 extern void remove_constraints (tree); 8317 extern tree current_template_constraints (void); 8318 extern tree associate_classtype_constraints (tree); 8319 extern tree build_constraints (tree, tree); 8320 extern tree maybe_substitute_reqs_for (tree, const_tree); 8321 extern tree get_trailing_function_requirements (tree); 8322 extern tree get_shorthand_constraints (tree); 8323 8324 extern tree build_concept_id (tree); 8325 extern tree build_type_constraint (tree, tree, tsubst_flags_t); 8326 extern tree build_concept_check (tree, tree, tsubst_flags_t); 8327 extern tree build_concept_check (tree, tree, tree, tsubst_flags_t); 8328 8329 extern tree_pair finish_type_constraints (tree, tree, tsubst_flags_t); 8330 extern tree build_constrained_parameter (tree, tree, tree = NULL_TREE); 8331 extern void placeholder_extract_concept_and_args (tree, tree&, tree&); 8332 extern bool equivalent_placeholder_constraints (tree, tree); 8333 extern hashval_t hash_placeholder_constraint (tree); 8334 extern bool deduce_constrained_parameter (tree, tree&, tree&); 8335 extern tree resolve_constraint_check (tree); 8336 extern tree check_function_concept (tree); 8337 extern tree finish_template_introduction (tree, tree, location_t loc); 8338 extern bool valid_requirements_p (tree); 8339 extern tree finish_concept_name (tree); 8340 extern tree finish_shorthand_constraint (tree, tree); 8341 extern tree finish_requires_expr (location_t, tree, tree); 8342 extern tree finish_simple_requirement (location_t, tree); 8343 extern tree finish_type_requirement (location_t, tree); 8344 extern tree finish_compound_requirement (location_t, tree, tree, bool); 8345 extern tree finish_nested_requirement (location_t, tree); 8346 extern tree tsubst_requires_expr (tree, tree, tsubst_flags_t, tree); 8347 extern tree evaluate_requires_expr (tree); 8348 extern tree tsubst_constraint (tree, tree, tsubst_flags_t, tree); 8349 extern tree tsubst_constraint_info (tree, tree, tsubst_flags_t, tree); 8350 extern tree tsubst_parameter_mapping (tree, tree, tsubst_flags_t, tree); 8351 8352 struct processing_constraint_expression_sentinel 8353 { 8354 processing_constraint_expression_sentinel (); 8355 ~processing_constraint_expression_sentinel (); 8356 }; 8357 8358 extern bool processing_constraint_expression_p (); 8359 8360 extern tree unpack_concept_check (tree); 8361 extern tree evaluate_concept_check (tree); 8362 extern bool constraints_satisfied_p (tree, tree = NULL_TREE); 8363 extern bool* lookup_subsumption_result (tree, tree); 8364 extern bool save_subsumption_result (tree, tree, bool); 8365 extern tree find_template_parameters (tree, tree); 8366 extern bool equivalent_constraints (tree, tree); 8367 extern bool equivalently_constrained (tree, tree); 8368 extern bool strictly_subsumes (tree, tree); 8369 extern bool weakly_subsumes (tree, tree); 8370 extern int more_constrained (tree, tree); 8371 extern bool at_least_as_constrained (tree, tree); 8372 extern bool constraints_equivalent_p (tree, tree); 8373 extern bool atomic_constraints_identical_p (tree, tree); 8374 extern hashval_t iterative_hash_constraint (tree, hashval_t); 8375 extern hashval_t hash_atomic_constraint (tree); 8376 extern void diagnose_constraints (location_t, tree, tree); 8377 8378 extern void note_failed_type_completion_for_satisfaction (tree); 8379 8380 /* A structural hasher for ATOMIC_CONSTRs. */ 8381 8382 struct atom_hasher : default_hash_traits<tree> 8383 { 8384 static hashval_t hash (tree t) 8385 { 8386 return hash_atomic_constraint (t); 8387 } 8388 8389 static bool equal (tree t1, tree t2) 8390 { 8391 return atomic_constraints_identical_p (t1, t2); 8392 } 8393 }; 8394 8395 /* in logic.cc */ 8396 extern bool subsumes (tree, tree); 8397 8398 /* In class.cc */ 8399 extern void set_current_access_from_decl (tree); 8400 extern void cp_finish_injected_record_type (tree); 8401 8402 /* in vtable-class-hierarchy.cc */ 8403 extern void vtv_compute_class_hierarchy_transitive_closure (void); 8404 extern void vtv_generate_init_routine (void); 8405 extern void vtv_save_class_info (tree); 8406 extern void vtv_recover_class_info (void); 8407 extern void vtv_build_vtable_verify_fndecl (void); 8408 8409 /* In constexpr.cc */ 8410 /* Representation of entries in the constexpr function definition table. */ 8411 8412 struct GTY((for_user)) constexpr_fundef { 8413 tree decl; 8414 tree body; 8415 tree parms; 8416 tree result; 8417 }; 8418 8419 extern void fini_constexpr (void); 8420 extern bool literal_type_p (tree); 8421 extern void maybe_save_constexpr_fundef (tree); 8422 extern void register_constexpr_fundef (const constexpr_fundef &); 8423 extern constexpr_fundef *retrieve_constexpr_fundef (tree); 8424 extern bool is_valid_constexpr_fn (tree, bool); 8425 extern bool check_constexpr_ctor_body (tree, tree, bool); 8426 extern tree constexpr_fn_retval (tree); 8427 extern tree ensure_literal_type_for_constexpr_object (tree); 8428 extern bool potential_constant_expression (tree); 8429 extern bool is_constant_expression (tree); 8430 extern bool is_rvalue_constant_expression (tree); 8431 extern bool is_nondependent_constant_expression (tree); 8432 extern bool is_nondependent_static_init_expression (tree); 8433 extern bool is_static_init_expression (tree); 8434 extern bool potential_rvalue_constant_expression (tree); 8435 extern bool require_potential_constant_expression (tree); 8436 extern bool require_constant_expression (tree); 8437 extern bool require_rvalue_constant_expression (tree); 8438 extern bool require_potential_rvalue_constant_expression (tree); 8439 extern tree cxx_constant_value (tree, tree = NULL_TREE); 8440 extern tree cxx_constant_value_sfinae (tree, tree, tsubst_flags_t); 8441 extern void cxx_constant_dtor (tree, tree); 8442 extern tree cxx_constant_init (tree, tree = NULL_TREE); 8443 extern tree maybe_constant_value (tree, tree = NULL_TREE, bool = false); 8444 extern tree maybe_constant_init (tree, tree = NULL_TREE, bool = false); 8445 extern tree fold_non_dependent_expr (tree, 8446 tsubst_flags_t = tf_warning_or_error, 8447 bool = false, tree = NULL_TREE); 8448 extern tree maybe_fold_non_dependent_expr (tree, 8449 tsubst_flags_t = tf_warning_or_error); 8450 extern tree fold_non_dependent_init (tree, 8451 tsubst_flags_t = tf_warning_or_error, 8452 bool = false, tree = NULL_TREE); 8453 extern tree fold_simple (tree); 8454 extern tree fold_to_constant (tree); 8455 extern bool reduced_constant_expression_p (tree); 8456 extern bool is_instantiation_of_constexpr (tree); 8457 extern bool var_in_constexpr_fn (tree); 8458 extern bool var_in_maybe_constexpr_fn (tree); 8459 extern bool maybe_constexpr_fn (tree); 8460 extern void explain_invalid_constexpr_fn (tree); 8461 extern vec<tree> cx_error_context (void); 8462 extern tree fold_sizeof_expr (tree); 8463 extern void clear_cv_and_fold_caches (void); 8464 extern tree unshare_constructor (tree CXX_MEM_STAT_INFO); 8465 extern bool decl_implicit_constexpr_p (tree); 8466 extern bool replace_decl (tree *, tree, tree); 8467 8468 /* An RAII sentinel used to restrict constexpr evaluation so that it 8469 doesn't do anything that causes extra DECL_UID generation. */ 8470 8471 struct uid_sensitive_constexpr_evaluation_sentinel 8472 { 8473 temp_override<bool> ovr; 8474 uid_sensitive_constexpr_evaluation_sentinel (); 8475 }; 8476 8477 /* Used to determine whether uid_sensitive_constexpr_evaluation_p was 8478 called and returned true, indicating that we've restricted constexpr 8479 evaluation in order to avoid UID generation. We use this to control 8480 updates to the fold_cache and cv_cache. */ 8481 8482 struct uid_sensitive_constexpr_evaluation_checker 8483 { 8484 const unsigned saved_counter; 8485 uid_sensitive_constexpr_evaluation_checker (); 8486 bool evaluation_restricted_p () const; 8487 }; 8488 8489 void cp_tree_c_finish_parsing (); 8490 8491 /* In cp-ubsan.cc */ 8492 extern void cp_ubsan_maybe_instrument_member_call (tree); 8493 extern void cp_ubsan_instrument_member_accesses (tree *); 8494 extern tree cp_ubsan_maybe_instrument_downcast (location_t, tree, tree, tree); 8495 extern tree cp_ubsan_maybe_instrument_cast_to_vbase (location_t, tree, tree); 8496 extern void cp_ubsan_maybe_initialize_vtbl_ptrs (tree); 8497 8498 /* In coroutines.cc */ 8499 extern tree finish_co_return_stmt (location_t, tree); 8500 extern tree finish_co_await_expr (location_t, tree); 8501 extern tree finish_co_yield_expr (location_t, tree); 8502 extern tree coro_validate_builtin_call (tree, 8503 tsubst_flags_t = tf_warning_or_error); 8504 extern bool morph_fn_to_coro (tree, tree *, tree *); 8505 extern tree coro_get_actor_function (tree); 8506 extern tree coro_get_destroy_function (tree); 8507 extern tree coro_get_ramp_function (tree); 8508 8509 /* Inline bodies. */ 8510 8511 inline tree 8512 ovl_first (tree node) 8513 { 8514 while (TREE_CODE (node) == OVERLOAD) 8515 node = OVL_FUNCTION (node); 8516 return node; 8517 } 8518 8519 inline bool 8520 type_unknown_p (const_tree expr) 8521 { 8522 return TREE_TYPE (expr) == unknown_type_node; 8523 } 8524 8525 inline hashval_t 8526 named_decl_hash::hash (const value_type decl) 8527 { 8528 tree name = (TREE_CODE (decl) == BINDING_VECTOR 8529 ? BINDING_VECTOR_NAME (decl) : OVL_NAME (decl)); 8530 return name ? IDENTIFIER_HASH_VALUE (name) : 0; 8531 } 8532 8533 inline bool 8534 named_decl_hash::equal (const value_type existing, compare_type candidate) 8535 { 8536 tree name = (TREE_CODE (existing) == BINDING_VECTOR 8537 ? BINDING_VECTOR_NAME (existing) : OVL_NAME (existing)); 8538 return candidate == name; 8539 } 8540 8541 inline bool 8542 null_node_p (const_tree expr) 8543 { 8544 STRIP_ANY_LOCATION_WRAPPER (expr); 8545 return expr == null_node; 8546 } 8547 8548 /* True iff T is a variable template declaration. */ 8549 inline bool 8550 variable_template_p (tree t) 8551 { 8552 if (TREE_CODE (t) != TEMPLATE_DECL) 8553 return false; 8554 if (!PRIMARY_TEMPLATE_P (t)) 8555 return false; 8556 if (tree r = DECL_TEMPLATE_RESULT (t)) 8557 return VAR_P (r); 8558 return false; 8559 } 8560 8561 /* True iff T is a standard concept definition. This will return 8562 true for both the template and underlying declaration. */ 8563 8564 inline bool 8565 standard_concept_p (tree t) 8566 { 8567 if (TREE_CODE (t) == TEMPLATE_DECL) 8568 t = DECL_TEMPLATE_RESULT (t); 8569 return TREE_CODE (t) == CONCEPT_DECL; 8570 } 8571 8572 /* True iff T is a variable concept definition. This will return 8573 true for both the template and the underlying declaration. */ 8574 8575 inline bool 8576 variable_concept_p (tree t) 8577 { 8578 if (TREE_CODE (t) == TEMPLATE_DECL) 8579 t = DECL_TEMPLATE_RESULT (t); 8580 return VAR_P (t) && DECL_DECLARED_CONCEPT_P (t); 8581 } 8582 8583 /* True iff T is a function concept definition or an overload set 8584 containing multiple function concepts. This will return true for 8585 both the template and the underlying declaration. */ 8586 8587 inline bool 8588 function_concept_p (tree t) 8589 { 8590 if (TREE_CODE (t) == OVERLOAD) 8591 t = OVL_FIRST (t); 8592 if (TREE_CODE (t) == TEMPLATE_DECL) 8593 t = DECL_TEMPLATE_RESULT (t); 8594 return TREE_CODE (t) == FUNCTION_DECL && DECL_DECLARED_CONCEPT_P (t); 8595 } 8596 8597 /* True iff T is a standard, variable, or function concept. */ 8598 8599 inline bool 8600 concept_definition_p (tree t) 8601 { 8602 if (t == error_mark_node) 8603 return false; 8604 8605 /* Adjust for function concept overloads. */ 8606 if (TREE_CODE (t) == OVERLOAD) 8607 t = OVL_FIRST (t); 8608 8609 /* See through templates. */ 8610 if (TREE_CODE (t) == TEMPLATE_DECL) 8611 t = DECL_TEMPLATE_RESULT (t); 8612 8613 /* The obvious and easy case. */ 8614 if (TREE_CODE (t) == CONCEPT_DECL) 8615 return true; 8616 8617 /* Definitely not a concept. */ 8618 if (!VAR_OR_FUNCTION_DECL_P (t)) 8619 return false; 8620 if (!DECL_LANG_SPECIFIC (t)) 8621 return false; 8622 8623 return DECL_DECLARED_CONCEPT_P (t); 8624 } 8625 8626 /* Same as above, but for const trees. */ 8627 8628 inline bool 8629 concept_definition_p (const_tree t) 8630 { 8631 return concept_definition_p (const_cast<tree> (t)); 8632 } 8633 8634 /* True if t is an expression that checks a concept. */ 8635 8636 inline bool 8637 concept_check_p (const_tree t) 8638 { 8639 if (TREE_CODE (t) == CALL_EXPR) 8640 t = CALL_EXPR_FN (t); 8641 if (t && TREE_CODE (t) == TEMPLATE_ID_EXPR) 8642 return concept_definition_p (TREE_OPERAND (t, 0)); 8643 return false; 8644 } 8645 8646 /* Helpers for IMPLICIT_RVALUE_P to look through automatic dereference. */ 8647 8648 inline bool 8649 implicit_rvalue_p (const_tree t) 8650 { 8651 if (REFERENCE_REF_P (t)) 8652 t = TREE_OPERAND (t, 0); 8653 return ((TREE_CODE (t) == NON_LVALUE_EXPR 8654 || TREE_CODE (t) == STATIC_CAST_EXPR) 8655 && IMPLICIT_RVALUE_P (t)); 8656 } 8657 inline tree 8658 set_implicit_rvalue_p (tree ot) 8659 { 8660 tree t = ot; 8661 if (REFERENCE_REF_P (t)) 8662 t = TREE_OPERAND (t, 0); 8663 IMPLICIT_RVALUE_P (t) = 1; 8664 return ot; 8665 } 8666 8667 /* True if t is a "constrained auto" type-specifier. */ 8668 8669 inline bool 8670 is_constrained_auto (const_tree t) 8671 { 8672 return is_auto (t) && PLACEHOLDER_TYPE_CONSTRAINTS_INFO (t); 8673 } 8674 8675 /* True if CODE, a tree code, denotes a tree whose operand is not evaluated 8676 as per [expr.context], i.e., an operand to sizeof, typeof, decltype, or 8677 alignof. */ 8678 8679 inline bool 8680 unevaluated_p (tree_code code) 8681 { 8682 return (code == DECLTYPE_TYPE 8683 || code == ALIGNOF_EXPR 8684 || code == SIZEOF_EXPR 8685 || code == NOEXCEPT_EXPR 8686 || code == REQUIRES_EXPR); 8687 } 8688 8689 /* RAII class to push/pop the access scope for T. */ 8690 8691 struct push_access_scope_guard 8692 { 8693 tree decl; 8694 push_access_scope_guard (tree t) 8695 : decl (t) 8696 { 8697 if (VAR_OR_FUNCTION_DECL_P (decl) 8698 || TREE_CODE (decl) == TYPE_DECL) 8699 push_access_scope (decl); 8700 else 8701 decl = NULL_TREE; 8702 } 8703 ~push_access_scope_guard () 8704 { 8705 if (decl) 8706 pop_access_scope (decl); 8707 } 8708 }; 8709 8710 #if CHECKING_P 8711 namespace selftest { 8712 extern void run_cp_tests (void); 8713 8714 /* Declarations for specific families of tests within cp, 8715 by source file, in alphabetical order. */ 8716 extern void cp_pt_cc_tests (); 8717 extern void cp_tree_cc_tests (void); 8718 } // namespace selftest 8719 #endif /* #if CHECKING_P */ 8720 8721 /* -- end of C++ */ 8722 8723 #endif /* ! GCC_CP_TREE_H */ 8724
Indexes created Thu Jun 25 00:25:11 UTC 2026