1 /* Definitions for -*- C++ -*- parsing and type checking. 2 Copyright (C) 1987-2024 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 #include "tristate.h" 28 #include "contracts.h" 29 30 /* In order for the format checking to accept the C++ front end 31 diagnostic framework extensions, you must include this file before 32 diagnostic-core.h, not after. We override the definition of GCC_DIAG_STYLE 33 in c-common.h. */ 34 #undef GCC_DIAG_STYLE 35 #define GCC_DIAG_STYLE __gcc_cxxdiag__ 36 #if defined(GCC_DIAGNOSTIC_CORE_H) || defined (GCC_C_COMMON_H) 37 #error \ 38 In order for the format checking to accept the C++ front end diagnostic \ 39 framework extensions, you must include this file before diagnostic-core.h and \ 40 c-common.h, not after. 41 #endif 42 #include "c-family/c-common.h" 43 #include "diagnostic.h" 44 45 /* A tree node, together with a location, so that we can track locations 46 (and ranges) during parsing. 47 48 The location is redundant for node kinds that have locations, 49 but not all node kinds do (e.g. constants, and references to 50 params, locals, etc), so we stash a copy here. */ 51 52 inline location_t cp_expr_location (const_tree); 53 54 class cp_expr 55 { 56 public: 57 cp_expr () : 58 m_value (NULL), m_loc (UNKNOWN_LOCATION), 59 m_decimal (false) 60 {} 61 62 cp_expr (tree value) : 63 m_value (value), m_loc (cp_expr_location (m_value)), 64 m_decimal (false) 65 {} 66 67 cp_expr (tree value, location_t loc): 68 m_value (value), m_loc (loc), m_decimal (false) 69 { 70 protected_set_expr_location (value, loc); 71 } 72 73 cp_expr (tree value, location_t loc, bool decimal): 74 m_value (value), m_loc (loc), m_decimal (decimal) 75 { 76 protected_set_expr_location (value, loc); 77 } 78 79 /* Implicit conversions to tree. */ 80 operator tree () const { return m_value; } 81 tree & operator* () { return m_value; } 82 tree operator* () const { return m_value; } 83 tree & operator-> () { return m_value; } 84 tree operator-> () const { return m_value; } 85 86 tree get_value () const { return m_value; } 87 location_t get_location () const { return m_loc; } 88 location_t get_start () const 89 { 90 source_range src_range = get_range_from_loc (line_table, m_loc); 91 return src_range.m_start; 92 } 93 location_t get_finish () const 94 { 95 source_range src_range = get_range_from_loc (line_table, m_loc); 96 return src_range.m_finish; 97 } 98 99 void set_location (location_t loc) 100 { 101 protected_set_expr_location (m_value, loc); 102 m_loc = loc; 103 } 104 105 void set_range (location_t start, location_t finish) 106 { 107 set_location (make_location (m_loc, start, finish)); 108 } 109 110 cp_expr& maybe_add_location_wrapper () 111 { 112 m_value = maybe_wrap_with_location (m_value, m_loc); 113 return *this; 114 } 115 116 bool decimal_p () const { return m_decimal; } 117 118 private: 119 tree m_value; 120 location_t m_loc; 121 bool m_decimal : 1; 122 }; 123 124 inline bool 125 operator == (const cp_expr &lhs, tree rhs) 126 { 127 return lhs.get_value () == rhs; 128 } 129 130 131 enum cp_tree_index 133 { 134 CPTI_WCHAR_DECL, 135 CPTI_VTABLE_ENTRY_TYPE, 136 CPTI_DELTA_TYPE, 137 CPTI_VTABLE_INDEX_TYPE, 138 CPTI_CLEANUP_TYPE, 139 CPTI_VTT_PARM_TYPE, 140 141 CPTI_CLASS_TYPE, 142 CPTI_UNKNOWN_TYPE, 143 CPTI_INIT_LIST_TYPE, 144 CPTI_EXPLICIT_VOID_LIST, 145 CPTI_VTBL_TYPE, 146 CPTI_VTBL_PTR_TYPE, 147 CPTI_GLOBAL, 148 CPTI_ABORT_FNDECL, 149 CPTI_AGGR_TAG, 150 CPTI_CONV_OP_MARKER, 151 152 CPTI_CTOR_IDENTIFIER, 153 CPTI_COMPLETE_CTOR_IDENTIFIER, 154 CPTI_BASE_CTOR_IDENTIFIER, 155 CPTI_DTOR_IDENTIFIER, 156 CPTI_COMPLETE_DTOR_IDENTIFIER, 157 CPTI_BASE_DTOR_IDENTIFIER, 158 CPTI_DELETING_DTOR_IDENTIFIER, 159 CPTI_CONV_OP_IDENTIFIER, 160 CPTI_DELTA_IDENTIFIER, 161 CPTI_IN_CHARGE_IDENTIFIER, 162 CPTI_VTT_PARM_IDENTIFIER, 163 CPTI_AS_BASE_IDENTIFIER, 164 CPTI_THIS_IDENTIFIER, 165 CPTI_PFN_IDENTIFIER, 166 CPTI_VPTR_IDENTIFIER, 167 CPTI_GLOBAL_IDENTIFIER, 168 CPTI_ANON_IDENTIFIER, 169 CPTI_AUTO_IDENTIFIER, 170 CPTI_DECLTYPE_AUTO_IDENTIFIER, 171 CPTI_INIT_LIST_IDENTIFIER, 172 CPTI_FOR_RANGE__IDENTIFIER, 173 CPTI_FOR_BEGIN__IDENTIFIER, 174 CPTI_FOR_END__IDENTIFIER, 175 CPTI_FOR_RANGE_IDENTIFIER, 176 CPTI_FOR_BEGIN_IDENTIFIER, 177 CPTI_FOR_END_IDENTIFIER, 178 CPTI_ABI_TAG_IDENTIFIER, 179 CPTI_ALIGNED_IDENTIFIER, 180 CPTI_BEGIN_IDENTIFIER, 181 CPTI_END_IDENTIFIER, 182 CPTI_GET_IDENTIFIER, 183 CPTI_GNU_IDENTIFIER, 184 CPTI_TUPLE_ELEMENT_IDENTIFIER, 185 CPTI_TUPLE_SIZE_IDENTIFIER, 186 CPTI_TYPE_IDENTIFIER, 187 CPTI_VALUE_IDENTIFIER, 188 CPTI_FUN_IDENTIFIER, 189 CPTI_CLOSURE_IDENTIFIER, 190 CPTI_HEAP_UNINIT_IDENTIFIER, 191 CPTI_HEAP_IDENTIFIER, 192 CPTI_HEAP_DELETED_IDENTIFIER, 193 CPTI_HEAP_VEC_UNINIT_IDENTIFIER, 194 CPTI_HEAP_VEC_IDENTIFIER, 195 CPTI_OMP_IDENTIFIER, 196 197 CPTI_LANG_NAME_C, 198 CPTI_LANG_NAME_CPLUSPLUS, 199 200 CPTI_EMPTY_EXCEPT_SPEC, 201 CPTI_NOEXCEPT_TRUE_SPEC, 202 CPTI_NOEXCEPT_FALSE_SPEC, 203 CPTI_NOEXCEPT_DEFERRED_SPEC, 204 205 CPTI_ANY_TARG, 206 207 CPTI_MODULE_HWM, 208 /* Nodes after here change during compilation, or should not be in 209 the module's global tree table. Such nodes must be locatable 210 via name lookup or type-construction, as those are the only 211 cross-TU matching capabilities remaining. */ 212 213 /* We must find these via the global namespace. */ 214 CPTI_STD, 215 CPTI_ABI, 216 217 /* These are created at init time, but the library/headers provide 218 definitions. */ 219 CPTI_ALIGN_TYPE, 220 CPTI_TERMINATE_FN, 221 CPTI_CALL_TERMINATE_FN, 222 CPTI_CALL_UNEXPECTED_FN, 223 224 /* These are lazily inited. */ 225 CPTI_CONST_TYPE_INFO_TYPE, 226 CPTI_GET_EXCEPTION_PTR_FN, 227 CPTI_BEGIN_CATCH_FN, 228 CPTI_END_CATCH_FN, 229 CPTI_ALLOCATE_EXCEPTION_FN, 230 CPTI_FREE_EXCEPTION_FN, 231 CPTI_THROW_FN, 232 CPTI_RETHROW_FN, 233 CPTI_ATEXIT_FN_PTR_TYPE, 234 CPTI_ATEXIT, 235 CPTI_THREAD_ATEXIT, 236 CPTI_DSO_HANDLE, 237 CPTI_DCAST, 238 239 CPTI_PSEUDO_CONTRACT_VIOLATION, 240 241 CPTI_MAX 242 }; 243 244 extern GTY(()) tree cp_global_trees[CPTI_MAX]; 245 246 #define wchar_decl_node cp_global_trees[CPTI_WCHAR_DECL] 247 #define vtable_entry_type cp_global_trees[CPTI_VTABLE_ENTRY_TYPE] 248 /* The type used to represent an offset by which to adjust the `this' 249 pointer in pointer-to-member types. */ 250 #define delta_type_node cp_global_trees[CPTI_DELTA_TYPE] 251 /* The type used to represent an index into the vtable. */ 252 #define vtable_index_type cp_global_trees[CPTI_VTABLE_INDEX_TYPE] 253 254 #define class_type_node cp_global_trees[CPTI_CLASS_TYPE] 255 #define unknown_type_node cp_global_trees[CPTI_UNKNOWN_TYPE] 256 #define init_list_type_node cp_global_trees[CPTI_INIT_LIST_TYPE] 257 #define explicit_void_list_node cp_global_trees[CPTI_EXPLICIT_VOID_LIST] 258 #define vtbl_type_node cp_global_trees[CPTI_VTBL_TYPE] 259 #define vtbl_ptr_type_node cp_global_trees[CPTI_VTBL_PTR_TYPE] 260 #define std_node cp_global_trees[CPTI_STD] 261 #define abi_node cp_global_trees[CPTI_ABI] 262 #define global_namespace cp_global_trees[CPTI_GLOBAL] 263 #define const_type_info_type_node cp_global_trees[CPTI_CONST_TYPE_INFO_TYPE] 264 #define conv_op_marker cp_global_trees[CPTI_CONV_OP_MARKER] 265 #define abort_fndecl cp_global_trees[CPTI_ABORT_FNDECL] 266 #define current_aggr cp_global_trees[CPTI_AGGR_TAG] 267 /* std::align_val_t */ 268 #define align_type_node cp_global_trees[CPTI_ALIGN_TYPE] 269 #define pseudo_contract_violation_type cp_global_trees[CPTI_PSEUDO_CONTRACT_VIOLATION] 270 271 /* We cache these tree nodes so as to call get_identifier less frequently. 272 For identifiers for functions, including special member functions such 273 as ctors and assignment operators, the nodes can be used (among other 274 things) to iterate over their overloads defined by/for a type. For 275 example: 276 277 tree ovlid = assign_op_identifier; 278 tree overloads = get_class_binding (type, ovlid); 279 for (ovl_iterator it (overloads); it; ++it) { ... } 280 281 iterates over the set of implicitly and explicitly defined overloads 282 of the assignment operator for type (including the copy and move 283 assignment operators, whether deleted or not). */ 284 285 /* The name of a constructor that takes an in-charge parameter to 286 decide whether or not to construct virtual base classes. */ 287 #define ctor_identifier cp_global_trees[CPTI_CTOR_IDENTIFIER] 288 /* The name of a constructor that constructs virtual base classes. */ 289 #define complete_ctor_identifier cp_global_trees[CPTI_COMPLETE_CTOR_IDENTIFIER] 290 /* The name of a constructor that does not construct virtual base classes. */ 291 #define base_ctor_identifier cp_global_trees[CPTI_BASE_CTOR_IDENTIFIER] 292 /* The name of a destructor that takes an in-charge parameter to 293 decide whether or not to destroy virtual base classes and whether 294 or not to delete the object. */ 295 #define dtor_identifier cp_global_trees[CPTI_DTOR_IDENTIFIER] 296 /* The name of a destructor that destroys virtual base classes. */ 297 #define complete_dtor_identifier cp_global_trees[CPTI_COMPLETE_DTOR_IDENTIFIER] 298 /* The name of a destructor that does not destroy virtual base 299 classes. */ 300 #define base_dtor_identifier cp_global_trees[CPTI_BASE_DTOR_IDENTIFIER] 301 /* The name of a destructor that destroys virtual base classes, and 302 then deletes the entire object. */ 303 #define deleting_dtor_identifier cp_global_trees[CPTI_DELETING_DTOR_IDENTIFIER] 304 305 /* The name used for conversion operators -- but note that actual 306 conversion functions use special identifiers outside the identifier 307 table. */ 308 #define conv_op_identifier cp_global_trees[CPTI_CONV_OP_IDENTIFIER] 309 310 #define delta_identifier cp_global_trees[CPTI_DELTA_IDENTIFIER] 311 #define in_charge_identifier cp_global_trees[CPTI_IN_CHARGE_IDENTIFIER] 312 /* The name of the parameter that contains a pointer to the VTT to use 313 for this subobject constructor or destructor. */ 314 #define vtt_parm_identifier cp_global_trees[CPTI_VTT_PARM_IDENTIFIER] 315 #define as_base_identifier cp_global_trees[CPTI_AS_BASE_IDENTIFIER] 316 #define this_identifier cp_global_trees[CPTI_THIS_IDENTIFIER] 317 #define pfn_identifier cp_global_trees[CPTI_PFN_IDENTIFIER] 318 #define vptr_identifier cp_global_trees[CPTI_VPTR_IDENTIFIER] 319 /* The name of the ::, std & anon namespaces. */ 320 #define global_identifier cp_global_trees[CPTI_GLOBAL_IDENTIFIER] 321 #define anon_identifier cp_global_trees[CPTI_ANON_IDENTIFIER] 322 /* auto and declspec(auto) identifiers. */ 323 #define auto_identifier cp_global_trees[CPTI_AUTO_IDENTIFIER] 324 #define decltype_auto_identifier cp_global_trees[CPTI_DECLTYPE_AUTO_IDENTIFIER] 325 #define init_list_identifier cp_global_trees[CPTI_INIT_LIST_IDENTIFIER] 326 #define for_range__identifier cp_global_trees[CPTI_FOR_RANGE__IDENTIFIER] 327 #define for_begin__identifier cp_global_trees[CPTI_FOR_BEGIN__IDENTIFIER] 328 #define for_end__identifier cp_global_trees[CPTI_FOR_END__IDENTIFIER] 329 #define for_range_identifier cp_global_trees[CPTI_FOR_RANGE_IDENTIFIER] 330 #define for_begin_identifier cp_global_trees[CPTI_FOR_BEGIN_IDENTIFIER] 331 #define for_end_identifier cp_global_trees[CPTI_FOR_END_IDENTIFIER] 332 #define abi_tag_identifier cp_global_trees[CPTI_ABI_TAG_IDENTIFIER] 333 #define aligned_identifier cp_global_trees[CPTI_ALIGNED_IDENTIFIER] 334 #define begin_identifier cp_global_trees[CPTI_BEGIN_IDENTIFIER] 335 #define end_identifier cp_global_trees[CPTI_END_IDENTIFIER] 336 #define get__identifier cp_global_trees[CPTI_GET_IDENTIFIER] 337 #define gnu_identifier cp_global_trees[CPTI_GNU_IDENTIFIER] 338 #define tuple_element_identifier cp_global_trees[CPTI_TUPLE_ELEMENT_IDENTIFIER] 339 #define tuple_size_identifier cp_global_trees[CPTI_TUPLE_SIZE_IDENTIFIER] 340 #define type_identifier cp_global_trees[CPTI_TYPE_IDENTIFIER] 341 #define value_identifier cp_global_trees[CPTI_VALUE_IDENTIFIER] 342 #define fun_identifier cp_global_trees[CPTI_FUN_IDENTIFIER] 343 #define closure_identifier cp_global_trees[CPTI_CLOSURE_IDENTIFIER] 344 #define heap_uninit_identifier cp_global_trees[CPTI_HEAP_UNINIT_IDENTIFIER] 345 #define heap_identifier cp_global_trees[CPTI_HEAP_IDENTIFIER] 346 #define heap_deleted_identifier cp_global_trees[CPTI_HEAP_DELETED_IDENTIFIER] 347 #define heap_vec_uninit_identifier cp_global_trees[CPTI_HEAP_VEC_UNINIT_IDENTIFIER] 348 #define heap_vec_identifier cp_global_trees[CPTI_HEAP_VEC_IDENTIFIER] 349 #define omp_identifier cp_global_trees[CPTI_OMP_IDENTIFIER] 350 #define lang_name_c cp_global_trees[CPTI_LANG_NAME_C] 351 #define lang_name_cplusplus cp_global_trees[CPTI_LANG_NAME_CPLUSPLUS] 352 353 /* Exception specifiers used for throw(), noexcept(true), 354 noexcept(false) and deferred noexcept. We rely on these being 355 uncloned. */ 356 #define empty_except_spec cp_global_trees[CPTI_EMPTY_EXCEPT_SPEC] 357 #define noexcept_true_spec cp_global_trees[CPTI_NOEXCEPT_TRUE_SPEC] 358 #define noexcept_false_spec cp_global_trees[CPTI_NOEXCEPT_FALSE_SPEC] 359 #define noexcept_deferred_spec cp_global_trees[CPTI_NOEXCEPT_DEFERRED_SPEC] 360 361 /* Exception handling function declarations. */ 362 #define terminate_fn cp_global_trees[CPTI_TERMINATE_FN] 363 #define call_unexpected_fn cp_global_trees[CPTI_CALL_UNEXPECTED_FN] 364 #define call_terminate_fn cp_global_trees[CPTI_CALL_TERMINATE_FN] 365 #define get_exception_ptr_fn cp_global_trees[CPTI_GET_EXCEPTION_PTR_FN] 366 #define begin_catch_fn cp_global_trees[CPTI_BEGIN_CATCH_FN] 367 #define end_catch_fn cp_global_trees[CPTI_END_CATCH_FN] 368 #define allocate_exception_fn cp_global_trees[CPTI_ALLOCATE_EXCEPTION_FN] 369 #define free_exception_fn cp_global_trees[CPTI_FREE_EXCEPTION_FN] 370 #define throw_fn cp_global_trees[CPTI_THROW_FN] 371 #define rethrow_fn cp_global_trees[CPTI_RETHROW_FN] 372 373 /* The type of the function-pointer argument to "std::atexit". */ 374 #define atexit_fn_ptr_type_node cp_global_trees[CPTI_ATEXIT_FN_PTR_TYPE] 375 376 /* A pointer to `std::atexit'. */ 377 #define atexit_node cp_global_trees[CPTI_ATEXIT] 378 379 /* A pointer to `__cxa_thread_atexit'. */ 380 #define thread_atexit_node cp_global_trees[CPTI_THREAD_ATEXIT] 381 382 /* A pointer to `__dso_handle'. */ 383 #define dso_handle_node cp_global_trees[CPTI_DSO_HANDLE] 384 385 /* The declaration of the dynamic_cast runtime. */ 386 #define dynamic_cast_node cp_global_trees[CPTI_DCAST] 387 388 /* The type of a destructor, passed to __cxa_atexit, __cxa_thread_atexit 389 or __cxa_throw. */ 390 #define cleanup_type cp_global_trees[CPTI_CLEANUP_TYPE] 391 392 /* The type of the vtt parameter passed to subobject constructors and 393 destructors. */ 394 #define vtt_parm_type cp_global_trees[CPTI_VTT_PARM_TYPE] 395 396 /* A node which matches any template argument. */ 397 #define any_targ_node cp_global_trees[CPTI_ANY_TARG] 398 399 /* Node to indicate default access. This must be distinct from the 400 access nodes in tree.h. */ 401 402 #define access_default_node null_node 403 404 #include "name-lookup.h" 406 407 /* Usage of TREE_LANG_FLAG_?: 408 0: IDENTIFIER_KIND_BIT_0 (in IDENTIFIER_NODE) 409 NEW_EXPR_USE_GLOBAL (in NEW_EXPR). 410 COND_EXPR_IS_VEC_DELETE (in COND_EXPR). 411 DELETE_EXPR_USE_GLOBAL (in DELETE_EXPR). 412 CLEANUP_P (in TRY_BLOCK) 413 AGGR_INIT_VIA_CTOR_P (in AGGR_INIT_EXPR) 414 PTRMEM_OK_P (in ADDR_EXPR, OFFSET_REF, SCOPE_REF) 415 PAREN_STRING_LITERAL_P (in STRING_CST) 416 CP_DECL_THREAD_LOCAL_P (in VAR_DECL) 417 KOENIG_LOOKUP_P (in CALL_EXPR) 418 STATEMENT_LIST_NO_SCOPE (in STATEMENT_LIST). 419 EXPR_STMT_STMT_EXPR_RESULT (in EXPR_STMT) 420 STMT_EXPR_NO_SCOPE (in STMT_EXPR) 421 BIND_EXPR_TRY_BLOCK (in BIND_EXPR) 422 TYPENAME_IS_ENUM_P (in TYPENAME_TYPE) 423 OMP_FOR_GIMPLIFYING_P (in OMP_FOR, OMP_SIMD, OMP_DISTRIBUTE, 424 and OMP_TASKLOOP) 425 BASELINK_QUALIFIED_P (in BASELINK) 426 TARGET_EXPR_IMPLICIT_P (in TARGET_EXPR) 427 TEMPLATE_PARM_PARAMETER_PACK (in TEMPLATE_PARM_INDEX) 428 ATTR_IS_DEPENDENT (in the TREE_LIST for an attribute) 429 ABI_TAG_IMPLICIT (in the TREE_LIST for the argument of abi_tag) 430 LAMBDA_CAPTURE_EXPLICIT_P (in a TREE_LIST in LAMBDA_EXPR_CAPTURE_LIST) 431 PARENTHESIZED_LIST_P (in the TREE_LIST for a parameter-declaration-list) 432 CONSTRUCTOR_IS_DIRECT_INIT (in CONSTRUCTOR) 433 LAMBDA_EXPR_CAPTURES_THIS_P (in LAMBDA_EXPR) 434 DECLTYPE_FOR_LAMBDA_CAPTURE (in DECLTYPE_TYPE) 435 VEC_INIT_EXPR_IS_CONSTEXPR (in VEC_INIT_EXPR) 436 DECL_OVERRIDE_P (in FUNCTION_DECL) 437 IMPLICIT_CONV_EXPR_DIRECT_INIT (in IMPLICIT_CONV_EXPR) 438 TRANSACTION_EXPR_IS_STMT (in TRANSACTION_EXPR) 439 CONVERT_EXPR_VBASE_PATH (in CONVERT_EXPR) 440 PACK_EXPANSION_LOCAL_P (in *_PACK_EXPANSION) 441 TINFO_HAS_ACCESS_ERRORS (in TEMPLATE_INFO) 442 SIZEOF_EXPR_TYPE_P (in SIZEOF_EXPR) 443 COMPOUND_REQ_NOEXCEPT_P (in COMPOUND_REQ) 444 WILDCARD_PACK_P (in WILDCARD_DECL) 445 BLOCK_OUTER_CURLY_BRACE_P (in BLOCK) 446 FOLD_EXPR_MODOP_P (*_FOLD_EXPR) 447 IF_STMT_CONSTEXPR_P (IF_STMT) 448 DECL_NAMESPACE_INLINE_P (in NAMESPACE_DECL) 449 SWITCH_STMT_ALL_CASES_P (in SWITCH_STMT) 450 REINTERPRET_CAST_P (in NOP_EXPR) 451 ALIGNOF_EXPR_STD_P (in ALIGNOF_EXPR) 452 OVL_DEDUP_P (in OVERLOAD) 453 INIT_EXPR_NRV_P (in INIT_EXPR) 454 ATOMIC_CONSTR_MAP_INSTANTIATED_P (in ATOMIC_CONSTR) 455 contract_semantic (in ASSERTION_, PRECONDITION_, POSTCONDITION_STMT) 456 RETURN_EXPR_LOCAL_ADDR_P (in RETURN_EXPR) 457 1: IDENTIFIER_KIND_BIT_1 (in IDENTIFIER_NODE) 458 TI_PENDING_TEMPLATE_FLAG. 459 TEMPLATE_PARMS_FOR_INLINE. 460 DELETE_EXPR_USE_VEC (in DELETE_EXPR). 461 ICS_ELLIPSIS_FLAG (in _CONV) 462 DECL_INITIALIZED_P (in VAR_DECL) 463 TYPENAME_IS_CLASS_P (in TYPENAME_TYPE) 464 STMT_IS_FULL_EXPR_P (in _STMT) 465 TARGET_EXPR_LIST_INIT_P (in TARGET_EXPR) 466 DECL_FINAL_P (in FUNCTION_DECL) 467 QUALIFIED_NAME_IS_TEMPLATE (in SCOPE_REF) 468 CONSTRUCTOR_IS_DEPENDENT (in CONSTRUCTOR) 469 TINFO_USED_TEMPLATE_ID (in TEMPLATE_INFO) 470 PACK_EXPANSION_SIZEOF_P (in *_PACK_EXPANSION) 471 OVL_USING_P (in OVERLOAD) 472 IMPLICIT_CONV_EXPR_NONTYPE_ARG (in IMPLICIT_CONV_EXPR) 473 BASELINK_FUNCTIONS_MAYBE_INCOMPLETE_P (in BASELINK) 474 BIND_EXPR_VEC_DTOR (in BIND_EXPR) 475 ATOMIC_CONSTR_EXPR_FROM_CONCEPT_P (in ATOMIC_CONSTR) 476 2: IDENTIFIER_KIND_BIT_2 (in IDENTIFIER_NODE) 477 ICS_THIS_FLAG (in _CONV) 478 DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (in VAR_DECL) 479 STATEMENT_LIST_TRY_BLOCK (in STATEMENT_LIST) 480 TYPENAME_IS_RESOLVING_P (in TYPENAME_TYPE) 481 TARGET_EXPR_DIRECT_INIT_P (in TARGET_EXPR) 482 FNDECL_USED_AUTO (in FUNCTION_DECL) 483 DECLTYPE_FOR_LAMBDA_PROXY (in DECLTYPE_TYPE) 484 REF_PARENTHESIZED_P (in COMPONENT_REF, INDIRECT_REF, SCOPE_REF, 485 VIEW_CONVERT_EXPR, PAREN_EXPR) 486 AGGR_INIT_ZERO_FIRST (in AGGR_INIT_EXPR) 487 CONSTRUCTOR_MUTABLE_POISON (in CONSTRUCTOR) 488 OVL_HIDDEN_P (in OVERLOAD) 489 IF_STMT_CONSTEVAL_P (in IF_STMT) 490 SWITCH_STMT_NO_BREAK_P (in SWITCH_STMT) 491 LAMBDA_EXPR_CAPTURE_OPTIMIZED (in LAMBDA_EXPR) 492 IMPLICIT_CONV_EXPR_BRACED_INIT (in IMPLICIT_CONV_EXPR) 493 PACK_EXPANSION_AUTO_P (in *_PACK_EXPANSION) 494 contract_semantic (in ASSERTION_, PRECONDITION_, POSTCONDITION_STMT) 495 3: IMPLICIT_RVALUE_P (in NON_LVALUE_EXPR or STATIC_CAST_EXPR) 496 ICS_BAD_FLAG (in _CONV) 497 FN_TRY_BLOCK_P (in TRY_BLOCK) 498 BIND_EXPR_BODY_BLOCK (in BIND_EXPR) 499 CALL_EXPR_ORDERED_ARGS (in CALL_EXPR, AGGR_INIT_EXPR) 500 DECLTYPE_FOR_REF_CAPTURE (in DECLTYPE_TYPE) 501 CONSTRUCTOR_C99_COMPOUND_LITERAL (in CONSTRUCTOR) 502 OVL_NESTED_P (in OVERLOAD) 503 DECL_MODULE_EXPORT_P (in _DECL) 504 PACK_EXPANSION_FORCE_EXTRA_ARGS_P (in *_PACK_EXPANSION) 505 LAMBDA_EXPR_STATIC_P (in LAMBDA_EXPR) 506 TARGET_EXPR_ELIDING_P (in TARGET_EXPR) 507 contract_semantic (in ASSERTION_, PRECONDITION_, POSTCONDITION_STMT) 508 4: IDENTIFIER_MARKED (IDENTIFIER_NODEs) 509 TREE_HAS_CONSTRUCTOR (in INDIRECT_REF, SAVE_EXPR, CONSTRUCTOR, 510 CALL_EXPR, or FIELD_DECL). 511 DECL_TINFO_P (in VAR_DECL, TYPE_DECL) 512 FUNCTION_REF_QUALIFIED (in FUNCTION_TYPE, METHOD_TYPE) 513 OVL_LOOKUP_P (in OVERLOAD) 514 LOOKUP_FOUND_P (in RECORD_TYPE, UNION_TYPE, ENUMERAL_TYPE, NAMESPACE_DECL) 515 FNDECL_MANIFESTLY_CONST_EVALUATED (in FUNCTION_DECL) 516 5: IDENTIFIER_VIRTUAL_P (in IDENTIFIER_NODE) 517 FUNCTION_RVALUE_QUALIFIED (in FUNCTION_TYPE, METHOD_TYPE) 518 CALL_EXPR_REVERSE_ARGS (in CALL_EXPR, AGGR_INIT_EXPR) 519 CONSTRUCTOR_PLACEHOLDER_BOUNDARY (in CONSTRUCTOR) 520 OVL_EXPORT_P (in OVERLOAD) 521 DECL_NTTP_OBJECT_P (in VAR_DECL) 522 6: TYPE_MARKED_P (in _TYPE) 523 DECL_NONTRIVIALLY_INITIALIZED_P (in VAR_DECL) 524 RANGE_FOR_IVDEP (in RANGE_FOR_STMT) 525 CALL_EXPR_OPERATOR_SYNTAX (in CALL_EXPR, AGGR_INIT_EXPR) 526 CONSTRUCTOR_IS_DESIGNATED_INIT (in CONSTRUCTOR) 527 OVL_NAME_INDEPENDENT_DECL_P (in OVERLOAD) 528 529 Usage of TYPE_LANG_FLAG_?: 530 0: TYPE_DEPENDENT_P 531 1: TYPE_HAS_USER_CONSTRUCTOR. 532 2: TYPE_HAS_LATE_RETURN_TYPE (in FUNCTION_TYPE, METHOD_TYPE) 533 TYPE_PTRMEMFUNC_FLAG (in RECORD_TYPE) 534 4: TYPE_HAS_NONTRIVIAL_DESTRUCTOR 535 5: CLASS_TYPE_P (in RECORD_TYPE and UNION_TYPE) 536 ENUM_FIXED_UNDERLYING_TYPE_P (in ENUMERAL_TYPE) 537 AUTO_IS_DECLTYPE (in TEMPLATE_TYPE_PARM) 538 TEMPLATE_TEMPLATE_PARM_SIMPLE_P (in TEMPLATE_TEMPLATE_PARM) 539 6: TYPE_DEPENDENT_P_VALID 540 541 Usage of DECL_LANG_FLAG_?: 542 0: DECL_TEMPLATE_PARM_P (in PARM_DECL, CONST_DECL, TYPE_DECL, or TEMPLATE_DECL) 543 DECL_LOCAL_DECL_P (in FUNCTION_DECL, VAR_DECL) 544 DECL_MUTABLE_P (in FIELD_DECL) 545 DECL_DEPENDENT_P (in USING_DECL) 546 LABEL_DECL_BREAK (in LABEL_DECL) 547 1: C_TYPEDEF_EXPLICITLY_SIGNED (in TYPE_DECL). 548 DECL_TEMPLATE_INSTANTIATED (in a VAR_DECL or a FUNCTION_DECL) 549 DECL_MEMBER_TEMPLATE_P (in TEMPLATE_DECL) 550 USING_DECL_TYPENAME_P (in USING_DECL) 551 DECL_VLA_CAPTURE_P (in FIELD_DECL) 552 DECL_ARRAY_PARAMETER_P (in PARM_DECL) 553 LABEL_DECL_CONTINUE (in LABEL_DECL) 554 2: DECL_THIS_EXTERN (in VAR_DECL, FUNCTION_DECL or PARM_DECL) 555 DECL_IMPLICIT_TYPEDEF_P (in a TYPE_DECL) 556 DECL_CONSTRAINT_VAR_P (in a PARM_DECL) 557 DECL_INSTANTIATING_NSDMI_P (in a FIELD_DECL) 558 USING_DECL_UNRELATED_P (in USING_DECL) 559 3: DECL_IN_AGGR_P. 560 4: DECL_C_BIT_FIELD (in a FIELD_DECL) 561 DECL_ANON_UNION_VAR_P (in a VAR_DECL) 562 DECL_SELF_REFERENCE_P (in a TYPE_DECL) 563 DECL_INVALID_OVERRIDER_P (in a FUNCTION_DECL) 564 DECL_UNINSTANIATED_TEMPLATE_FRIEND_P (in TEMPLATE_DECL) 565 5: DECL_INTERFACE_KNOWN. 566 6: DECL_THIS_STATIC (in VAR_DECL, FUNCTION_DECL or PARM_DECL) 567 DECL_FIELD_IS_BASE (in FIELD_DECL) 568 TYPE_DECL_ALIAS_P (in TYPE_DECL) 569 7: DECL_THUNK_P (in a member FUNCTION_DECL) 570 DECL_NORMAL_CAPTURE_P (in FIELD_DECL) 571 DECL_DECLARED_CONSTINIT_P (in VAR_DECL) 572 8: DECL_DECLARED_CONSTEXPR_P (in VAR_DECL, FUNCTION_DECL) 573 574 Usage of language-independent fields in a language-dependent manner: 575 576 TYPE_ALIAS_SET 577 This field is used by TYPENAME_TYPEs, TEMPLATE_TYPE_PARMs, and so 578 forth as a substitute for the mark bits provided in `lang_type'. 579 At present, only the six low-order bits are used. 580 581 TYPE_LANG_SLOT_1 582 For a FUNCTION_TYPE or METHOD_TYPE, this is TYPE_RAISES_EXCEPTIONS. 583 For a POINTER_TYPE (to a METHOD_TYPE), this is TYPE_PTRMEMFUNC_TYPE. 584 For an ENUMERAL_TYPE, BOUND_TEMPLATE_TEMPLATE_PARM_TYPE, 585 RECORD_TYPE or UNION_TYPE this is TYPE_TEMPLATE_INFO, 586 587 BINFO_VIRTUALS 588 For a binfo, this is a TREE_LIST. There is an entry for each 589 virtual function declared either in BINFO or its direct and 590 indirect primary bases. 591 592 The BV_DELTA of each node gives the amount by which to adjust the 593 `this' pointer when calling the function. If the method is an 594 overridden version of a base class method, then it is assumed 595 that, prior to adjustment, the this pointer points to an object 596 of the base class. 597 598 The BV_VCALL_INDEX of each node, if non-NULL, gives the vtable 599 index of the vcall offset for this entry. 600 601 The BV_FN is the declaration for the virtual function itself. 602 603 If BV_LOST_PRIMARY is set, it means that this entry is for a lost 604 primary virtual base and can be left null in the vtable. 605 606 BINFO_VTABLE 607 This is an expression with POINTER_TYPE that gives the value 608 to which the vptr should be initialized. Use get_vtbl_decl_for_binfo 609 to extract the VAR_DECL for the complete vtable. 610 611 DECL_VINDEX 612 This field is NULL for a non-virtual function. For a virtual 613 function, it is eventually set to an INTEGER_CST indicating the 614 index in the vtable at which this function can be found. When 615 a virtual function is declared, but before it is known what 616 function is overridden, this field is the error_mark_node. 617 618 Temporarily, it may be set to a TREE_LIST whose TREE_VALUE is 619 the virtual function this one overrides, and whose TREE_CHAIN is 620 the old DECL_VINDEX. */ 621 622 /* Language-specific tree checkers. */ 623 624 #define VAR_OR_FUNCTION_DECL_CHECK(NODE) \ 625 TREE_CHECK2(NODE,VAR_DECL,FUNCTION_DECL) 626 627 #define TYPE_FUNCTION_OR_TEMPLATE_DECL_CHECK(NODE) \ 628 TREE_CHECK3(NODE,TYPE_DECL,TEMPLATE_DECL,FUNCTION_DECL) 629 630 #define TYPE_FUNCTION_OR_TEMPLATE_DECL_P(NODE) \ 631 (TREE_CODE (NODE) == TYPE_DECL || TREE_CODE (NODE) == TEMPLATE_DECL \ 632 || TREE_CODE (NODE) == FUNCTION_DECL) 633 634 #define VAR_FUNCTION_OR_PARM_DECL_CHECK(NODE) \ 635 TREE_CHECK3(NODE,VAR_DECL,FUNCTION_DECL,PARM_DECL) 636 637 #define VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK(NODE) \ 638 TREE_CHECK4(NODE,VAR_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL) 639 640 #define VAR_TEMPL_TYPE_FIELD_OR_FUNCTION_DECL_CHECK(NODE) \ 641 TREE_CHECK5(NODE,VAR_DECL,FIELD_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL) 642 643 #define BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK(NODE) \ 644 TREE_CHECK(NODE,BOUND_TEMPLATE_TEMPLATE_PARM) 645 646 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007) 647 648 /* Returns t iff the node can have a TEMPLATE_INFO field. */ 649 650 inline tree 651 template_info_decl_check (const_tree t, const char* f, int l, const char* fn) 652 { 653 switch (TREE_CODE (t)) 654 { 655 case VAR_DECL: 656 case FUNCTION_DECL: 657 case FIELD_DECL: 658 case TYPE_DECL: 659 case CONCEPT_DECL: 660 case TEMPLATE_DECL: 661 return const_cast<tree>(t); 662 default: 663 break; 664 } 665 tree_check_failed (t, f, l, fn, 666 VAR_DECL, FUNCTION_DECL, FIELD_DECL, TYPE_DECL, 667 CONCEPT_DECL, TEMPLATE_DECL, 0); 668 gcc_unreachable (); 669 } 670 671 #define TEMPLATE_INFO_DECL_CHECK(NODE) \ 672 template_info_decl_check ((NODE), __FILE__, __LINE__, __FUNCTION__) 673 674 #define THUNK_FUNCTION_CHECK(NODE) __extension__ \ 675 ({ __typeof (NODE) const __t = (NODE); \ 676 if (TREE_CODE (__t) != FUNCTION_DECL || !__t->decl_common.lang_specific \ 677 || !__t->decl_common.lang_specific->u.fn.thunk_p) \ 678 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, 0); \ 679 __t; }) 680 681 #define DECL_TEMPLATE_PARM_CHECK(NODE) \ 682 decl_template_parm_check ((NODE), __FILE__, __LINE__, __FUNCTION__) 683 684 #else /* ENABLE_TREE_CHECKING */ 685 686 #define TEMPLATE_INFO_DECL_CHECK(NODE) (NODE) 687 #define THUNK_FUNCTION_CHECK(NODE) (NODE) 688 #define DECL_TEMPLATE_PARM_CHECK(NODE) (NODE) 689 690 #endif /* ENABLE_TREE_CHECKING */ 691 692 /* Language-dependent contents of an identifier. */ 694 695 struct GTY(()) lang_identifier { 696 struct c_common_identifier c_common; 697 cxx_binding *bindings; 698 }; 699 700 /* Return a typed pointer version of T if it designates a 701 C++ front-end identifier. */ 702 inline lang_identifier* 703 identifier_p (tree t) 704 { 705 if (TREE_CODE (t) == IDENTIFIER_NODE) 706 return (lang_identifier*) t; 707 return NULL; 708 } 709 710 #define LANG_IDENTIFIER_CAST(NODE) \ 711 ((struct lang_identifier*)IDENTIFIER_NODE_CHECK (NODE)) 712 713 struct GTY(()) template_parm_index { 714 struct tree_common common; 715 int index; 716 int level; 717 int orig_level; 718 tree decl; 719 }; 720 721 struct GTY(()) ptrmem_cst { 722 struct tree_common common; 723 tree member; 724 location_t locus; 725 }; 726 typedef struct ptrmem_cst * ptrmem_cst_t; 727 728 #define CLEANUP_P(NODE) TREE_LANG_FLAG_0 (TRY_BLOCK_CHECK (NODE)) 729 730 #define BIND_EXPR_TRY_BLOCK(NODE) \ 731 TREE_LANG_FLAG_0 (BIND_EXPR_CHECK (NODE)) 732 733 /* This BIND_EXPR is from build_vec_delete_1. */ 734 #define BIND_EXPR_VEC_DTOR(NODE) \ 735 TREE_LANG_FLAG_1 (BIND_EXPR_CHECK (NODE)) 736 737 /* Used to mark the block around the member initializers and cleanups. */ 738 #define BIND_EXPR_BODY_BLOCK(NODE) \ 739 TREE_LANG_FLAG_3 (BIND_EXPR_CHECK (NODE)) 740 #define FUNCTION_NEEDS_BODY_BLOCK(NODE) \ 741 (DECL_CONSTRUCTOR_P (NODE) || DECL_DESTRUCTOR_P (NODE) \ 742 || LAMBDA_FUNCTION_P (NODE)) 743 744 #define STATEMENT_LIST_NO_SCOPE(NODE) \ 745 TREE_LANG_FLAG_0 (STATEMENT_LIST_CHECK (NODE)) 746 #define STATEMENT_LIST_TRY_BLOCK(NODE) \ 747 TREE_LANG_FLAG_2 (STATEMENT_LIST_CHECK (NODE)) 748 749 /* Mark the outer curly brace BLOCK. */ 750 #define BLOCK_OUTER_CURLY_BRACE_P(NODE) TREE_LANG_FLAG_0 (BLOCK_CHECK (NODE)) 751 752 /* Nonzero if this statement should be considered a full-expression, 753 i.e., if temporaries created during this statement should have 754 their destructors run at the end of this statement. */ 755 #define STMT_IS_FULL_EXPR_P(NODE) TREE_LANG_FLAG_1 ((NODE)) 756 757 /* Marks the result of a statement expression. */ 758 #define EXPR_STMT_STMT_EXPR_RESULT(NODE) \ 759 TREE_LANG_FLAG_0 (EXPR_STMT_CHECK (NODE)) 760 761 /* Nonzero if this statement-expression does not have an associated scope. */ 762 #define STMT_EXPR_NO_SCOPE(NODE) \ 763 TREE_LANG_FLAG_0 (STMT_EXPR_CHECK (NODE)) 764 765 #define COND_EXPR_IS_VEC_DELETE(NODE) \ 766 TREE_LANG_FLAG_0 (COND_EXPR_CHECK (NODE)) 767 768 /* Nonzero if this NOP_EXPR is a reinterpret_cast. Such conversions 769 are not constexprs. Other NOP_EXPRs are. */ 770 #define REINTERPRET_CAST_P(NODE) \ 771 TREE_LANG_FLAG_0 (NOP_EXPR_CHECK (NODE)) 772 773 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, in the usual 774 sense of `same'. */ 775 #define same_type_p(TYPE1, TYPE2) \ 776 comptypes ((TYPE1), (TYPE2), COMPARE_STRICT) 777 778 /* Returns nonzero iff NODE is a declaration for the global function 779 `main'. */ 780 #define DECL_MAIN_ANY_P(NODE) \ 781 (DECL_EXTERN_C_FUNCTION_P (NODE) \ 782 && DECL_NAME (NODE) != NULL_TREE \ 783 && MAIN_NAME_P (DECL_NAME (NODE))) 784 785 /* Nonzero iff NODE is a declaration for `int main', or we are hosted. */ 786 #define DECL_MAIN_FREESTANDING_P(NODE) \ 787 (DECL_MAIN_ANY_P(NODE) \ 788 && (flag_hosted \ 789 || TYPE_MAIN_VARIANT (TREE_TYPE (TREE_TYPE (NODE))) \ 790 == integer_type_node)) 791 792 /* Nonzero iff NODE is a declaration for `main', and we are hosted. */ 793 #define DECL_MAIN_P(NODE) (DECL_MAIN_ANY_P(NODE) && flag_hosted) 794 795 /* Lookup walker marking. */ 796 #define LOOKUP_SEEN_P(NODE) TREE_VISITED (NODE) 797 #define LOOKUP_FOUND_P(NODE) \ 798 TREE_LANG_FLAG_4 (TREE_CHECK4 (NODE,RECORD_TYPE,UNION_TYPE,ENUMERAL_TYPE,\ 799 NAMESPACE_DECL)) 800 801 /* These two accessors should only be used by OVL manipulators. 802 Other users should use iterators and convenience functions. */ 803 #define OVL_FUNCTION(NODE) \ 804 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->function) 805 #define OVL_CHAIN(NODE) \ 806 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->common.chain) 807 808 /* If set, this or a subsequent overload contains decls that need deduping. */ 809 #define OVL_DEDUP_P(NODE) TREE_LANG_FLAG_0 (OVERLOAD_CHECK (NODE)) 810 /* If set, this was imported in a using declaration. */ 811 #define OVL_USING_P(NODE) TREE_LANG_FLAG_1 (OVERLOAD_CHECK (NODE)) 812 /* If set, this overload is a hidden decl. */ 813 #define OVL_HIDDEN_P(NODE) TREE_LANG_FLAG_2 (OVERLOAD_CHECK (NODE)) 814 /* If set, this overload contains a nested overload. */ 815 #define OVL_NESTED_P(NODE) TREE_LANG_FLAG_3 (OVERLOAD_CHECK (NODE)) 816 /* If set, this overload was constructed during lookup. */ 817 #define OVL_LOOKUP_P(NODE) TREE_LANG_FLAG_4 (OVERLOAD_CHECK (NODE)) 818 /* If set, this OVL_USING_P overload is exported. */ 819 #define OVL_EXPORT_P(NODE) TREE_LANG_FLAG_5 (OVERLOAD_CHECK (NODE)) 820 /* If set, this overload includes name-independent declarations. */ 821 #define OVL_NAME_INDEPENDENT_DECL_P(NODE) \ 822 TREE_LANG_FLAG_6 (OVERLOAD_CHECK (NODE)) 823 824 /* The first decl of an overload. */ 825 #define OVL_FIRST(NODE) ovl_first (NODE) 826 /* The name of the overload set. */ 827 #define OVL_NAME(NODE) DECL_NAME (OVL_FIRST (NODE)) 828 829 /* Whether this is a set of overloaded functions. TEMPLATE_DECLS are 830 always wrapped in an OVERLOAD, so we don't need to check them 831 here. */ 832 #define OVL_P(NODE) \ 833 (TREE_CODE (NODE) == FUNCTION_DECL || TREE_CODE (NODE) == OVERLOAD) 834 /* Whether this is a single member overload. */ 835 #define OVL_SINGLE_P(NODE) \ 836 (TREE_CODE (NODE) != OVERLOAD || !OVL_CHAIN (NODE)) 837 838 /* OVL_HIDDEN_P nodes come before other nodes. */ 839 840 struct GTY(()) tree_overload { 841 struct tree_common common; 842 tree function; 843 }; 844 845 /* Iterator for a 1 dimensional overload. Permits iterating over the 846 outer level of a 2-d overload when explicitly enabled. */ 847 848 class ovl_iterator { 849 tree ovl; 850 const bool allow_inner; /* Only used when checking. */ 851 852 public: 853 explicit ovl_iterator (tree o, bool allow = false) 854 : ovl (o), allow_inner (allow) 855 { 856 } 857 858 public: 859 operator bool () const 860 { 861 return ovl; 862 } 863 ovl_iterator &operator++ () 864 { 865 ovl = TREE_CODE (ovl) != OVERLOAD ? NULL_TREE : OVL_CHAIN (ovl); 866 return *this; 867 } 868 tree operator* () const 869 { 870 tree fn = TREE_CODE (ovl) != OVERLOAD ? ovl : OVL_FUNCTION (ovl); 871 872 /* Check this is not an unexpected 2-dimensional overload. */ 873 gcc_checking_assert (allow_inner || TREE_CODE (fn) != OVERLOAD); 874 875 return fn; 876 } 877 bool operator== (const ovl_iterator &o) const 878 { 879 return ovl == o.ovl; 880 } 881 tree get_using () const 882 { 883 gcc_checking_assert (using_p ()); 884 return ovl; 885 } 886 887 public: 888 /* Whether this overload was introduced by a using decl. */ 889 bool using_p () const 890 { 891 return (TREE_CODE (ovl) == USING_DECL 892 || (TREE_CODE (ovl) == OVERLOAD && OVL_USING_P (ovl))); 893 } 894 /* Whether this using is being exported. */ 895 bool exporting_p () const 896 { 897 return OVL_EXPORT_P (get_using ()); 898 } 899 900 bool hidden_p () const 901 { 902 return TREE_CODE (ovl) == OVERLOAD && OVL_HIDDEN_P (ovl); 903 } 904 905 public: 906 tree remove_node (tree head) 907 { 908 return remove_node (head, ovl); 909 } 910 tree reveal_node (tree head) 911 { 912 return reveal_node (head, ovl); 913 } 914 915 protected: 916 /* If we have a nested overload, point at the inner overload and 917 return the next link on the outer one. */ 918 tree maybe_push () 919 { 920 tree r = NULL_TREE; 921 922 if (ovl && TREE_CODE (ovl) == OVERLOAD && OVL_NESTED_P (ovl)) 923 { 924 r = OVL_CHAIN (ovl); 925 ovl = OVL_FUNCTION (ovl); 926 } 927 return r; 928 } 929 /* Restore an outer nested overload. */ 930 void pop (tree outer) 931 { 932 gcc_checking_assert (!ovl); 933 ovl = outer; 934 } 935 936 private: 937 /* We make these static functions to avoid the address of the 938 iterator escaping the local context. */ 939 static tree remove_node (tree head, tree node); 940 static tree reveal_node (tree ovl, tree node); 941 }; 942 943 /* Treat a tree as a range of ovl_iterator, e.g. 944 for (tree f : ovl_range (fns)) { ... } */ 945 946 class ovl_range 947 { 948 tree t; 949 bool allow; 950 public: 951 explicit ovl_range (tree t, bool allow = false): t(t), allow(allow) { } 952 ovl_iterator begin() { return ovl_iterator (t, allow); } 953 ovl_iterator end() { return ovl_iterator (NULL_TREE, allow); } 954 }; 955 956 /* Iterator over a (potentially) 2 dimensional overload, which is 957 produced by name lookup. */ 958 959 class lkp_iterator : public ovl_iterator { 960 typedef ovl_iterator parent; 961 962 tree outer; 963 964 public: 965 explicit lkp_iterator (tree o) 966 : parent (o, true), outer (maybe_push ()) 967 { 968 } 969 970 public: 971 lkp_iterator &operator++ () 972 { 973 bool repush = !outer; 974 975 if (!parent::operator++ () && !repush) 976 { 977 pop (outer); 978 repush = true; 979 } 980 981 if (repush) 982 outer = maybe_push (); 983 984 return *this; 985 } 986 }; 987 988 /* Treat a tree as a range of lkp_iterator, e.g. 989 for (tree f : lkp_range (fns)) { ... } */ 990 991 class lkp_range 992 { 993 tree t; 994 public: 995 lkp_range (tree t): t(t) { } 996 lkp_iterator begin() { return lkp_iterator (t); } 997 lkp_iterator end() { return lkp_iterator (NULL_TREE); } 998 }; 999 1000 /* hash traits for declarations. Hashes potential overload sets via 1001 DECL_NAME. */ 1002 1003 struct named_decl_hash : ggc_remove <tree> { 1004 typedef tree value_type; /* A DECL or OVERLOAD */ 1005 typedef tree compare_type; /* An identifier. */ 1006 1007 inline static hashval_t hash (const value_type decl); 1008 inline static bool equal (const value_type existing, compare_type candidate); 1009 1010 static const bool empty_zero_p = true; 1011 static inline void mark_empty (value_type &p) {p = NULL_TREE;} 1012 static inline bool is_empty (value_type p) {return !p;} 1013 1014 /* Nothing is deletable. Everything is insertable. */ 1015 static bool is_deleted (value_type) { return false; } 1016 static void mark_deleted (value_type) { gcc_unreachable (); } 1017 }; 1018 1019 /* Simplified unique_ptr clone to release a tree vec on exit. */ 1020 1021 class releasing_vec 1022 { 1023 public: 1024 typedef vec<tree, va_gc> vec_t; 1025 1026 releasing_vec (vec_t *v): v(v) { } 1027 releasing_vec (): v(make_tree_vector ()) { } 1028 1029 /* Copy ops are deliberately declared but not defined, 1030 copies must always be elided. */ 1031 releasing_vec (const releasing_vec &); 1032 releasing_vec &operator= (const releasing_vec &); 1033 1034 vec_t &operator* () const { return *v; } 1035 vec_t *operator-> () const { return v; } 1036 vec_t *get() const { return v; } 1037 operator vec_t *() const { return v; } 1038 vec_t ** operator& () { return &v; } 1039 1040 /* Breaks pointer/value consistency for convenience. This takes ptrdiff_t 1041 rather than unsigned to avoid ambiguity with the built-in operator[] 1042 (bootstrap/91828). */ 1043 tree& operator[] (ptrdiff_t i) const { return (*v)[i]; } 1044 1045 tree *begin() { return ::begin (v); } 1046 tree *end() { return ::end (v); } 1047 1048 void release () { release_tree_vector (v); v = NULL; } 1049 1050 ~releasing_vec () { release_tree_vector (v); } 1051 private: 1052 vec_t *v; 1053 }; 1054 /* Forwarding functions for vec_safe_* that might reallocate. */ 1055 inline tree* vec_safe_push (releasing_vec& r, const tree &t CXX_MEM_STAT_INFO) 1056 { return vec_safe_push (*&r, t PASS_MEM_STAT); } 1057 inline bool vec_safe_reserve (releasing_vec& r, unsigned n, bool e = false CXX_MEM_STAT_INFO) 1058 { return vec_safe_reserve (*&r, n, e PASS_MEM_STAT); } 1059 inline unsigned vec_safe_length (releasing_vec &r) 1060 { return r->length(); } 1061 inline void vec_safe_splice (releasing_vec &r, vec<tree, va_gc> *p CXX_MEM_STAT_INFO) 1062 { vec_safe_splice (*&r, p PASS_MEM_STAT); } 1063 void release_tree_vector (releasing_vec &); // cause link error 1064 1065 struct GTY(()) tree_template_decl { 1066 struct tree_decl_common common; 1067 tree arguments; 1068 tree result; 1069 }; 1070 1071 /* Returns true iff NODE is a BASELINK. */ 1072 #define BASELINK_P(NODE) \ 1073 (TREE_CODE (NODE) == BASELINK) 1074 /* The BINFO indicating the base in which lookup found the 1075 BASELINK_FUNCTIONS. */ 1076 #define BASELINK_BINFO(NODE) \ 1077 (((struct tree_baselink*) BASELINK_CHECK (NODE))->binfo) 1078 /* The functions referred to by the BASELINK; either a FUNCTION_DECL, 1079 a TEMPLATE_DECL, an OVERLOAD, or a TEMPLATE_ID_EXPR. */ 1080 #define BASELINK_FUNCTIONS(NODE) \ 1081 (((struct tree_baselink*) BASELINK_CHECK (NODE))->functions) 1082 /* If T is a BASELINK, grab the functions, otherwise just T, which is 1083 expected to already be a (list of) functions. */ 1084 #define MAYBE_BASELINK_FUNCTIONS(T) \ 1085 (BASELINK_P (T) ? BASELINK_FUNCTIONS (T) : T) 1086 /* The BINFO in which the search for the functions indicated by this baselink 1087 began. This base is used to determine the accessibility of functions 1088 selected by overload resolution. */ 1089 #define BASELINK_ACCESS_BINFO(NODE) \ 1090 (((struct tree_baselink*) BASELINK_CHECK (NODE))->access_binfo) 1091 /* For a type-conversion operator, the BASELINK_OPTYPE indicates the type 1092 to which the conversion should occur. This value is important if 1093 the BASELINK_FUNCTIONS include a template conversion operator -- 1094 the BASELINK_OPTYPE can be used to determine what type the user 1095 requested. */ 1096 #define BASELINK_OPTYPE(NODE) \ 1097 (TREE_CHAIN (BASELINK_CHECK (NODE))) 1098 /* Nonzero if this baselink was from a qualified lookup. */ 1099 #define BASELINK_QUALIFIED_P(NODE) \ 1100 TREE_LANG_FLAG_0 (BASELINK_CHECK (NODE)) 1101 /* Nonzero if the overload set for this baselink might be incomplete due 1102 to the lookup being performed from an incomplete-class context. */ 1103 #define BASELINK_FUNCTIONS_MAYBE_INCOMPLETE_P(NODE) \ 1104 TREE_LANG_FLAG_1 (BASELINK_CHECK (NODE)) 1105 1106 struct GTY(()) tree_baselink { 1107 struct tree_common common; 1108 tree binfo; 1109 tree functions; 1110 tree access_binfo; 1111 }; 1112 1113 /* The different kinds of ids that we encounter. */ 1114 1115 enum cp_id_kind 1116 { 1117 /* Not an id at all. */ 1118 CP_ID_KIND_NONE, 1119 /* An unqualified-id that is not a template-id. */ 1120 CP_ID_KIND_UNQUALIFIED, 1121 /* An unqualified-id that is a dependent name. */ 1122 CP_ID_KIND_UNQUALIFIED_DEPENDENT, 1123 /* An unqualified template-id. */ 1124 CP_ID_KIND_TEMPLATE_ID, 1125 /* A qualified-id. */ 1126 CP_ID_KIND_QUALIFIED 1127 }; 1128 1129 1130 /* The various kinds of C++0x warnings we encounter. */ 1131 1132 enum cpp0x_warn_str 1133 { 1134 /* extended initializer lists */ 1135 CPP0X_INITIALIZER_LISTS, 1136 /* explicit conversion operators */ 1137 CPP0X_EXPLICIT_CONVERSION, 1138 /* variadic templates */ 1139 CPP0X_VARIADIC_TEMPLATES, 1140 /* lambda expressions */ 1141 CPP0X_LAMBDA_EXPR, 1142 /* C++0x auto */ 1143 CPP0X_AUTO, 1144 /* scoped enums */ 1145 CPP0X_SCOPED_ENUMS, 1146 /* defaulted and deleted functions */ 1147 CPP0X_DEFAULTED_DELETED, 1148 /* inline namespaces */ 1149 CPP0X_INLINE_NAMESPACES, 1150 /* override controls, override/final */ 1151 CPP0X_OVERRIDE_CONTROLS, 1152 /* non-static data member initializers */ 1153 CPP0X_NSDMI, 1154 /* user defined literals */ 1155 CPP0X_USER_DEFINED_LITERALS, 1156 /* delegating constructors */ 1157 CPP0X_DELEGATING_CTORS, 1158 /* inheriting constructors */ 1159 CPP0X_INHERITING_CTORS, 1160 /* C++11 attributes */ 1161 CPP0X_ATTRIBUTES, 1162 /* ref-qualified member functions */ 1163 CPP0X_REF_QUALIFIER 1164 }; 1165 1166 /* The various kinds of operation used by composite_pointer_type. */ 1167 1168 enum composite_pointer_operation 1169 { 1170 /* comparison */ 1171 CPO_COMPARISON, 1172 /* conversion */ 1173 CPO_CONVERSION, 1174 /* conditional expression */ 1175 CPO_CONDITIONAL_EXPR 1176 }; 1177 1178 /* Possible cases of expression list used by build_x_compound_expr_from_list. */ 1179 enum expr_list_kind { 1180 ELK_INIT, /* initializer */ 1181 ELK_MEM_INIT, /* member initializer */ 1182 ELK_FUNC_CAST /* functional cast */ 1183 }; 1184 1185 /* Possible cases of implicit bad rhs conversions. */ 1186 enum impl_conv_rhs { 1187 ICR_DEFAULT_ARGUMENT, /* default argument */ 1188 ICR_CONVERTING, /* converting */ 1189 ICR_INIT, /* initialization */ 1190 ICR_ARGPASS, /* argument passing */ 1191 ICR_RETURN, /* return */ 1192 ICR_ASSIGN /* assignment */ 1193 }; 1194 1195 /* Possible cases of implicit or explicit bad conversions to void. */ 1196 enum impl_conv_void { 1197 ICV_CAST, /* (explicit) conversion to void */ 1198 ICV_SECOND_OF_COND, /* second operand of conditional expression */ 1199 ICV_THIRD_OF_COND, /* third operand of conditional expression */ 1200 ICV_RIGHT_OF_COMMA, /* right operand of comma operator */ 1201 ICV_LEFT_OF_COMMA, /* left operand of comma operator */ 1202 ICV_STATEMENT, /* statement */ 1203 ICV_THIRD_IN_FOR /* for increment expression */ 1204 }; 1205 1206 /* Possible invalid uses of an abstract class that might not have a 1207 specific associated declaration. */ 1208 enum GTY(()) abstract_class_use { 1209 ACU_UNKNOWN, /* unknown or decl provided */ 1210 ACU_CAST, /* cast to abstract class */ 1211 ACU_NEW, /* new-expression of abstract class */ 1212 ACU_THROW, /* throw-expression of abstract class */ 1213 ACU_CATCH, /* catch-parameter of abstract class */ 1214 ACU_ARRAY, /* array of abstract class */ 1215 ACU_RETURN, /* return type of abstract class */ 1216 ACU_PARM /* parameter type of abstract class */ 1217 }; 1218 1219 /* Macros for access to language-specific slots in an identifier. */ 1220 1221 /* Identifiers map directly to block or class-scope bindings. 1222 Namespace-scope bindings are held in hash tables on the respective 1223 namespaces. The identifier bindings are the innermost active 1224 binding, from whence you can get the decl and/or implicit-typedef 1225 of an elaborated type. When not bound to a local entity the 1226 values are NULL. */ 1227 #define IDENTIFIER_BINDING(NODE) \ 1228 (LANG_IDENTIFIER_CAST (NODE)->bindings) 1229 #define REAL_IDENTIFIER_TYPE_VALUE(NODE) TREE_TYPE (NODE) 1230 #define SET_IDENTIFIER_TYPE_VALUE(NODE,TYPE) (TREE_TYPE (NODE) = (TYPE)) 1231 1232 /* Kinds of identifiers. Values are carefully chosen. */ 1233 enum cp_identifier_kind { 1234 cik_normal = 0, /* Not a special identifier. */ 1235 cik_keyword = 1, /* A keyword. */ 1236 cik_ctor = 2, /* Constructor (in-chg, complete or base). */ 1237 cik_dtor = 3, /* Destructor (in-chg, deleting, complete or 1238 base). */ 1239 cik_simple_op = 4, /* Non-assignment operator name. */ 1240 cik_assign_op = 5, /* An assignment operator name. */ 1241 cik_conv_op = 6, /* Conversion operator name. */ 1242 cik_trait = 7, /* Built-in trait name. */ 1243 cik_max 1244 }; 1245 1246 /* Kind bits. */ 1247 #define IDENTIFIER_KIND_BIT_0(NODE) \ 1248 TREE_LANG_FLAG_0 (IDENTIFIER_NODE_CHECK (NODE)) 1249 #define IDENTIFIER_KIND_BIT_1(NODE) \ 1250 TREE_LANG_FLAG_1 (IDENTIFIER_NODE_CHECK (NODE)) 1251 #define IDENTIFIER_KIND_BIT_2(NODE) \ 1252 TREE_LANG_FLAG_2 (IDENTIFIER_NODE_CHECK (NODE)) 1253 1254 /* Used by various search routines. */ 1255 #define IDENTIFIER_MARKED(NODE) \ 1256 TREE_LANG_FLAG_4 (IDENTIFIER_NODE_CHECK (NODE)) 1257 1258 /* Nonzero if this identifier is used as a virtual function name somewhere 1259 (optimizes searches). */ 1260 #define IDENTIFIER_VIRTUAL_P(NODE) \ 1261 TREE_LANG_FLAG_5 (IDENTIFIER_NODE_CHECK (NODE)) 1262 1263 /* True if this identifier is a reserved word. C_RID_CODE (node) is 1264 then the RID_* value of the keyword. Value 1. */ 1265 #define IDENTIFIER_KEYWORD_P(NODE) \ 1266 ((!IDENTIFIER_KIND_BIT_2 (NODE)) \ 1267 & (!IDENTIFIER_KIND_BIT_1 (NODE)) \ 1268 & IDENTIFIER_KIND_BIT_0 (NODE)) 1269 1270 /* True if this identifier is the name of a constructor or 1271 destructor. Value 2 or 3. */ 1272 #define IDENTIFIER_CDTOR_P(NODE) \ 1273 ((!IDENTIFIER_KIND_BIT_2 (NODE)) \ 1274 & IDENTIFIER_KIND_BIT_1 (NODE)) 1275 1276 /* True if this identifier is the name of a constructor. Value 2. */ 1277 #define IDENTIFIER_CTOR_P(NODE) \ 1278 (IDENTIFIER_CDTOR_P(NODE) \ 1279 & (!IDENTIFIER_KIND_BIT_0 (NODE))) 1280 1281 /* True if this identifier is the name of a destructor. Value 3. */ 1282 #define IDENTIFIER_DTOR_P(NODE) \ 1283 (IDENTIFIER_CDTOR_P(NODE) \ 1284 & IDENTIFIER_KIND_BIT_0 (NODE)) 1285 1286 /* True if this identifier is for any operator name (including 1287 conversions). Value 4, 5, or 6. */ 1288 #define IDENTIFIER_ANY_OP_P(NODE) \ 1289 (IDENTIFIER_KIND_BIT_2 (NODE) && !IDENTIFIER_TRAIT_P (NODE)) 1290 1291 /* True if this identifier is for an overloaded operator. Values 4, 5. */ 1292 #define IDENTIFIER_OVL_OP_P(NODE) \ 1293 (IDENTIFIER_ANY_OP_P (NODE) \ 1294 & (!IDENTIFIER_KIND_BIT_1 (NODE))) 1295 1296 /* True if this identifier is for any assignment. Values 5. */ 1297 #define IDENTIFIER_ASSIGN_OP_P(NODE) \ 1298 (IDENTIFIER_OVL_OP_P (NODE) \ 1299 & IDENTIFIER_KIND_BIT_0 (NODE)) 1300 1301 /* True if this identifier is the name of a type-conversion 1302 operator. Value 6. */ 1303 #define IDENTIFIER_CONV_OP_P(NODE) \ 1304 (IDENTIFIER_ANY_OP_P (NODE) \ 1305 & IDENTIFIER_KIND_BIT_1 (NODE) \ 1306 & (!IDENTIFIER_KIND_BIT_0 (NODE))) 1307 1308 /* True if this identifier is the name of a built-in trait. */ 1309 #define IDENTIFIER_TRAIT_P(NODE) \ 1310 (IDENTIFIER_KIND_BIT_0 (NODE) \ 1311 & IDENTIFIER_KIND_BIT_1 (NODE) \ 1312 & IDENTIFIER_KIND_BIT_2 (NODE)) 1313 1314 /* True if this identifier is a new or delete operator. */ 1315 #define IDENTIFIER_NEWDEL_OP_P(NODE) \ 1316 (IDENTIFIER_OVL_OP_P (NODE) \ 1317 && IDENTIFIER_OVL_OP_FLAGS (NODE) & OVL_OP_FLAG_ALLOC) 1318 1319 /* True if this identifier is a new operator. */ 1320 #define IDENTIFIER_NEW_OP_P(NODE) \ 1321 (IDENTIFIER_OVL_OP_P (NODE) \ 1322 && (IDENTIFIER_OVL_OP_FLAGS (NODE) \ 1323 & (OVL_OP_FLAG_ALLOC | OVL_OP_FLAG_DELETE)) == OVL_OP_FLAG_ALLOC) 1324 1325 /* Access a C++-specific index for identifier NODE. 1326 Used to optimize operator mappings etc. */ 1327 #define IDENTIFIER_CP_INDEX(NODE) \ 1328 (IDENTIFIER_NODE_CHECK(NODE)->base.u.bits.address_space) 1329 1330 /* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */ 1331 #define C_TYPE_FIELDS_READONLY(TYPE) \ 1332 (LANG_TYPE_CLASS_CHECK (TYPE)->fields_readonly) 1333 1334 /* The tokens stored in the unparsed operand. */ 1335 1336 #define DEFPARSE_TOKENS(NODE) \ 1337 (((struct tree_deferred_parse *)DEFERRED_PARSE_CHECK (NODE))->tokens) 1338 #define DEFPARSE_INSTANTIATIONS(NODE) \ 1339 (((struct tree_deferred_parse *)DEFERRED_PARSE_CHECK (NODE))->instantiations) 1340 1341 struct GTY (()) tree_deferred_parse { 1342 struct tree_base base; 1343 struct cp_token_cache *tokens; 1344 vec<tree, va_gc> *instantiations; 1345 }; 1346 1347 1348 #define DEFERRED_NOEXCEPT_PATTERN(NODE) \ 1349 (((struct tree_deferred_noexcept *)DEFERRED_NOEXCEPT_CHECK (NODE))->pattern) 1350 #define DEFERRED_NOEXCEPT_ARGS(NODE) \ 1351 (((struct tree_deferred_noexcept *)DEFERRED_NOEXCEPT_CHECK (NODE))->args) 1352 #define DEFERRED_NOEXCEPT_SPEC_P(NODE) \ 1353 ((NODE) && (TREE_PURPOSE (NODE)) \ 1354 && (TREE_CODE (TREE_PURPOSE (NODE)) == DEFERRED_NOEXCEPT)) 1355 #define UNEVALUATED_NOEXCEPT_SPEC_P(NODE) \ 1356 (DEFERRED_NOEXCEPT_SPEC_P (NODE) \ 1357 && DEFERRED_NOEXCEPT_PATTERN (TREE_PURPOSE (NODE)) == NULL_TREE) 1358 #define UNPARSED_NOEXCEPT_SPEC_P(NODE) \ 1359 ((NODE) && (TREE_PURPOSE (NODE)) \ 1360 && (TREE_CODE (TREE_PURPOSE (NODE)) == DEFERRED_PARSE)) 1361 1362 struct GTY (()) tree_deferred_noexcept { 1363 struct tree_base base; 1364 tree pattern; 1365 tree args; 1366 }; 1367 1368 1369 /* The condition associated with the static assertion. This must be 1370 an integral constant expression. */ 1371 #define STATIC_ASSERT_CONDITION(NODE) \ 1372 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->condition) 1373 1374 /* The message associated with the static assertion. This must be a 1375 string constant, which will be emitted as an error message when the 1376 static assert condition is false. */ 1377 #define STATIC_ASSERT_MESSAGE(NODE) \ 1378 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->message) 1379 1380 /* Source location information for a static assertion. */ 1381 #define STATIC_ASSERT_SOURCE_LOCATION(NODE) \ 1382 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->location) 1383 1384 struct GTY (()) tree_static_assert { 1385 struct tree_common common; 1386 tree condition; 1387 tree message; 1388 location_t location; 1389 }; 1390 1391 struct GTY (()) tree_argument_pack_select { 1392 struct tree_common common; 1393 tree argument_pack; 1394 int index; 1395 }; 1396 1397 /* The different kinds of traits that we encounter. The size is limited to 1398 addr_space_t since a trait is looked up by IDENTIFIER_CP_INDEX. */ 1399 enum cp_trait_kind : addr_space_t { 1400 #define DEFTRAIT(TCC, CODE, NAME, ARITY) \ 1401 CPTK_##CODE, 1402 #include "cp-trait.def" 1403 #undef DEFTRAIT 1404 }; 1405 1406 /* The trait type. */ 1407 struct cp_trait { 1408 const char *name; 1409 cp_trait_kind kind; 1410 short arity; 1411 bool type; 1412 }; 1413 1414 /* The trait table indexed by cp_trait_kind. */ 1415 extern const struct cp_trait cp_traits[]; 1416 1417 /* The types that we are processing. */ 1418 #define TRAIT_EXPR_TYPE1(NODE) \ 1419 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type1) 1420 1421 #define TRAIT_EXPR_TYPE2(NODE) \ 1422 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type2) 1423 1424 /* The specific trait that we are processing. */ 1425 #define TRAIT_EXPR_KIND(NODE) \ 1426 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->kind) 1427 1428 #define TRAIT_EXPR_LOCATION(NODE) \ 1429 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->locus) 1430 1431 struct GTY (()) tree_trait_expr { 1432 struct tree_common common; 1433 tree type1; 1434 tree type2; 1435 location_t locus; 1436 enum cp_trait_kind kind; 1437 }; 1438 1439 /* An INTEGER_CST containing the kind of the trait type NODE. */ 1440 #define TRAIT_TYPE_KIND_RAW(NODE) \ 1441 TYPE_VALUES_RAW (TRAIT_TYPE_CHECK (NODE)) 1442 1443 /* The kind of the trait type NODE. */ 1444 #define TRAIT_TYPE_KIND(NODE) \ 1445 ((enum cp_trait_kind) TREE_INT_CST_LOW (TRAIT_TYPE_KIND_RAW (NODE))) 1446 1447 /* The first argument of the trait type NODE. */ 1448 #define TRAIT_TYPE_TYPE1(NODE) \ 1449 TYPE_MIN_VALUE_RAW (TRAIT_TYPE_CHECK (NODE)) 1450 1451 /* The rest of the arguments of the trait type NODE. */ 1452 #define TRAIT_TYPE_TYPE2(NODE) \ 1453 TYPE_MAX_VALUE_RAW (TRAIT_TYPE_CHECK (NODE)) 1454 1455 /* Identifiers used for lambda types are almost anonymous. Use this 1456 spare flag to distinguish them (they also have the anonymous flag). */ 1457 #define IDENTIFIER_LAMBDA_P(NODE) \ 1458 (IDENTIFIER_NODE_CHECK(NODE)->base.protected_flag) 1459 1460 /* Based off of TYPE_UNNAMED_P. */ 1461 #define LAMBDA_TYPE_P(NODE) \ 1462 (TREE_CODE (NODE) == RECORD_TYPE \ 1463 && TYPE_LINKAGE_IDENTIFIER (NODE) \ 1464 && IDENTIFIER_LAMBDA_P (TYPE_LINKAGE_IDENTIFIER (NODE))) 1465 1466 /* Test if FUNCTION_DECL is a lambda function. */ 1467 #define LAMBDA_FUNCTION_P(FNDECL) \ 1468 (DECL_DECLARES_FUNCTION_P (FNDECL) \ 1469 && DECL_OVERLOADED_OPERATOR_P (FNDECL) \ 1470 && DECL_OVERLOADED_OPERATOR_IS (FNDECL, CALL_EXPR) \ 1471 && LAMBDA_TYPE_P (CP_DECL_CONTEXT (FNDECL))) 1472 1473 enum cp_lambda_default_capture_mode_type { 1474 CPLD_NONE, 1475 CPLD_COPY, 1476 CPLD_REFERENCE 1477 }; 1478 1479 /* The method of default capture, if any. */ 1480 #define LAMBDA_EXPR_DEFAULT_CAPTURE_MODE(NODE) \ 1481 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->default_capture_mode) 1482 1483 /* The capture-list, including `this'. Each capture is stored as a FIELD_DECL 1484 * so that the name, type, and field are all together, whether or not it has 1485 * been added to the lambda's class type. 1486 TREE_LIST: 1487 TREE_PURPOSE: The FIELD_DECL for this capture. 1488 TREE_VALUE: The initializer. This is part of a GNU extension. */ 1489 #define LAMBDA_EXPR_CAPTURE_LIST(NODE) \ 1490 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->capture_list) 1491 1492 /* During parsing of the lambda-introducer, the node in the capture-list 1493 that holds the 'this' capture. During parsing of the body, the 1494 capture proxy for that node. */ 1495 #define LAMBDA_EXPR_THIS_CAPTURE(NODE) \ 1496 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->this_capture) 1497 1498 /* Predicate tracking whether `this' is in the effective capture set. */ 1499 #define LAMBDA_EXPR_CAPTURES_THIS_P(NODE) \ 1500 LAMBDA_EXPR_THIS_CAPTURE(NODE) 1501 1502 /* True iff uses of a const variable capture were optimized away. */ 1503 #define LAMBDA_EXPR_CAPTURE_OPTIMIZED(NODE) \ 1504 TREE_LANG_FLAG_2 (LAMBDA_EXPR_CHECK (NODE)) 1505 1506 /* Predicate tracking whether the lambda was declared 'static'. */ 1507 #define LAMBDA_EXPR_STATIC_P(NODE) \ 1508 TREE_LANG_FLAG_3 (LAMBDA_EXPR_CHECK (NODE)) 1509 1510 /* True if this TREE_LIST in LAMBDA_EXPR_CAPTURE_LIST is for an explicit 1511 capture. */ 1512 #define LAMBDA_CAPTURE_EXPLICIT_P(NODE) \ 1513 TREE_LANG_FLAG_0 (TREE_LIST_CHECK (NODE)) 1514 1515 /* The source location of the lambda. */ 1516 #define LAMBDA_EXPR_LOCATION(NODE) \ 1517 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->locus) 1518 1519 /* The mangling scope for the lambda: FUNCTION_DECL, PARM_DECL, VAR_DECL, 1520 FIELD_DECL or NULL_TREE. If this is NULL_TREE, we have no linkage. */ 1521 #define LAMBDA_EXPR_EXTRA_SCOPE(NODE) \ 1522 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->extra_scope) 1523 1524 /* Lambdas in the same extra scope might need a discriminating count. 1525 For ABI 17, we have single per-scope count, for ABI 18, we have 1526 per-scope, per-signature numbering. */ 1527 #define LAMBDA_EXPR_SCOPE_ONLY_DISCRIMINATOR(NODE) \ 1528 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->discriminator_scope) 1529 #define LAMBDA_EXPR_SCOPE_SIG_DISCRIMINATOR(NODE) \ 1530 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->discriminator_sig) 1531 1532 /* During parsing of the lambda, a vector of capture proxies which need 1533 to be pushed once we're done processing a nested lambda. */ 1534 #define LAMBDA_EXPR_PENDING_PROXIES(NODE) \ 1535 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->pending_proxies) 1536 1537 /* If NODE was regenerated via tsubst_lambda_expr, this is a TEMPLATE_INFO 1538 whose TI_TEMPLATE is the immediate LAMBDA_EXPR from which NODE was 1539 regenerated, and TI_ARGS is the full set of template arguments used 1540 to regenerate NODE from the most general lambda. */ 1541 #define LAMBDA_EXPR_REGEN_INFO(NODE) \ 1542 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->regen_info) 1543 1544 /* Like PACK_EXPANSION_EXTRA_ARGS, for lambda-expressions. */ 1545 #define LAMBDA_EXPR_EXTRA_ARGS(NODE) \ 1546 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->extra_args) 1547 1548 /* The closure type of the lambda, which is also the type of the 1549 LAMBDA_EXPR. */ 1550 #define LAMBDA_EXPR_CLOSURE(NODE) \ 1551 (TREE_TYPE (LAMBDA_EXPR_CHECK (NODE))) 1552 1553 struct GTY (()) tree_lambda_expr 1554 { 1555 struct tree_typed typed; 1556 tree capture_list; 1557 tree this_capture; 1558 tree extra_scope; 1559 tree regen_info; 1560 tree extra_args; 1561 vec<tree, va_gc> *pending_proxies; 1562 location_t locus; 1563 enum cp_lambda_default_capture_mode_type default_capture_mode : 2; 1564 unsigned discriminator_scope : 15; // Per-scope discriminator 1565 unsigned discriminator_sig : 15; // Per-scope, per-signature discriminator 1566 }; 1567 1568 /* Non-zero if this template specialization has access violations that 1569 should be rechecked when the function is instantiated outside argument 1570 deduction. */ 1571 #define TINFO_HAS_ACCESS_ERRORS(NODE) \ 1572 (TREE_LANG_FLAG_0 (TEMPLATE_INFO_CHECK (NODE))) 1573 #define FNDECL_HAS_ACCESS_ERRORS(NODE) \ 1574 (TINFO_HAS_ACCESS_ERRORS (DECL_TEMPLATE_INFO (NODE))) 1575 1576 /* Non-zero if this variable template specialization was specified using a 1577 template-id, so it's a partial or full specialization and not a definition 1578 of the member template of a particular class specialization. */ 1579 #define TINFO_USED_TEMPLATE_ID(NODE) \ 1580 (TREE_LANG_FLAG_1 (TEMPLATE_INFO_CHECK (NODE))) 1581 1582 /* The representation of a deferred access check. */ 1583 1584 struct GTY(()) deferred_access_check { 1585 /* The base class in which the declaration is referenced. */ 1586 tree binfo; 1587 /* The declaration whose access must be checked. */ 1588 tree decl; 1589 /* The declaration that should be used in the error message. */ 1590 tree diag_decl; 1591 /* The location of this access. */ 1592 location_t loc; 1593 }; 1594 1595 struct GTY(()) tree_template_info { 1596 struct tree_base base; 1597 tree tmpl; 1598 tree args; 1599 tree partial; 1600 vec<deferred_access_check, va_gc> *deferred_access_checks; 1601 }; 1602 1603 // Constraint information for a C++ declaration. Constraint information is 1604 // comprised of: 1605 // 1606 // - a constraint expression introduced by the template header 1607 // - a constraint expression introduced by a function declarator 1608 // - the associated constraints, which are the conjunction of those, 1609 // and used for declaration matching 1610 // 1611 // The template and declarator requirements are kept to support pretty 1612 // printing constrained declarations. 1613 struct GTY(()) tree_constraint_info { 1614 struct tree_base base; 1615 tree template_reqs; 1616 tree declarator_reqs; 1617 tree associated_constr; 1618 }; 1619 1620 // Require that pointer P is non-null before returning. 1621 template<typename T> 1622 inline T* 1623 check_nonnull (T* p) 1624 { 1625 gcc_assert (p); 1626 return p; 1627 } 1628 1629 /* Returns true iff T is non-null and represents constraint info. */ 1630 inline tree_constraint_info * 1631 check_constraint_info (tree t) 1632 { 1633 if (t && TREE_CODE (t) == CONSTRAINT_INFO) 1634 return (tree_constraint_info *)t; 1635 return NULL; 1636 } 1637 1638 /* Access the expression describing the template constraints. This may be 1639 null if no constraints were introduced in the template parameter list, 1640 a requirements clause after the template parameter list, or constraints 1641 through a constrained-type-specifier. */ 1642 #define CI_TEMPLATE_REQS(NODE) \ 1643 check_constraint_info (check_nonnull (NODE))->template_reqs 1644 1645 /* Access the expression describing the trailing constraints. This is non-null 1646 for any implicit instantiation of a constrained declaration. For a 1647 templated declaration it is non-null only when a trailing requires-clause 1648 was specified. */ 1649 #define CI_DECLARATOR_REQS(NODE) \ 1650 check_constraint_info (check_nonnull (NODE))->declarator_reqs 1651 1652 /* The computed associated constraint expression for a declaration. */ 1653 #define CI_ASSOCIATED_CONSTRAINTS(NODE) \ 1654 check_constraint_info (check_nonnull (NODE))->associated_constr 1655 1656 /* Access the constraint-expression introduced by the requires-clause 1657 associate the template parameter list NODE. */ 1658 #define TEMPLATE_PARMS_CONSTRAINTS(NODE) \ 1659 TREE_TYPE (TREE_LIST_CHECK (NODE)) 1660 1661 /* Access the logical constraints on the template parameter declaration 1662 indicated by NODE. */ 1663 #define TEMPLATE_PARM_CONSTRAINTS(NODE) \ 1664 TREE_TYPE (TREE_LIST_CHECK (NODE)) 1665 1666 /* Non-zero if the noexcept is present in a compound requirement. */ 1667 #define COMPOUND_REQ_NOEXCEPT_P(NODE) \ 1668 TREE_LANG_FLAG_0 (TREE_CHECK (NODE, COMPOUND_REQ)) 1669 1670 /* A TREE_LIST whose TREE_VALUE is the constraints on the 'auto' placeholder 1671 type NODE, used in an argument deduction constraint. The TREE_PURPOSE 1672 holds the set of template parameters that were in-scope when this 'auto' 1673 was formed. */ 1674 #define PLACEHOLDER_TYPE_CONSTRAINTS_INFO(NODE) \ 1675 DECL_SIZE_UNIT (TYPE_NAME (TEMPLATE_TYPE_PARM_CHECK (NODE))) 1676 1677 /* The constraints on the 'auto' placeholder type NODE. */ 1678 #define PLACEHOLDER_TYPE_CONSTRAINTS(NODE) \ 1679 (PLACEHOLDER_TYPE_CONSTRAINTS_INFO (NODE) \ 1680 ? TREE_VALUE (PLACEHOLDER_TYPE_CONSTRAINTS_INFO (NODE)) \ 1681 : NULL_TREE) 1682 1683 /* True if NODE is a constraint. */ 1684 #define CONSTR_P(NODE) \ 1685 (TREE_CODE (NODE) == ATOMIC_CONSTR \ 1686 || TREE_CODE (NODE) == CONJ_CONSTR \ 1687 || TREE_CODE (NODE) == DISJ_CONSTR) 1688 1689 /* Valid for any normalized constraint. */ 1690 #define CONSTR_CHECK(NODE) \ 1691 TREE_CHECK3 (NODE, ATOMIC_CONSTR, CONJ_CONSTR, DISJ_CONSTR) 1692 1693 /* The CONSTR_INFO stores normalization data for a constraint. It refers to 1694 the original expression and the expression or declaration 1695 from which the constraint was normalized. 1696 1697 This is TREE_LIST whose TREE_PURPOSE is the original expression and whose 1698 TREE_VALUE is a list of contexts. */ 1699 #define CONSTR_INFO(NODE) \ 1700 TREE_TYPE (CONSTR_CHECK (NODE)) 1701 1702 /* The expression evaluated by the constraint. */ 1703 #define CONSTR_EXPR(NODE) \ 1704 TREE_PURPOSE (CONSTR_INFO (NODE)) 1705 1706 /* The expression or declaration from which this constraint was normalized. 1707 This is a TREE_LIST whose TREE_VALUE is either a template-id expression 1708 denoting a concept check or the declaration introducing the constraint. 1709 These are chained to other context objects. */ 1710 #define CONSTR_CONTEXT(NODE) \ 1711 TREE_VALUE (CONSTR_INFO (NODE)) 1712 1713 /* The parameter mapping for an atomic constraint. */ 1714 #define ATOMIC_CONSTR_MAP(NODE) \ 1715 TREE_OPERAND (TREE_CHECK (NODE, ATOMIC_CONSTR), 0) 1716 1717 /* Whether the parameter mapping of this atomic constraint 1718 is already instantiated with concrete template arguments. 1719 Used only in satisfy_atom and in the satisfaction cache. */ 1720 #define ATOMIC_CONSTR_MAP_INSTANTIATED_P(NODE) \ 1721 TREE_LANG_FLAG_0 (ATOMIC_CONSTR_CHECK (NODE)) 1722 1723 /* Whether the expression for this atomic constraint belongs to a 1724 concept definition. */ 1725 #define ATOMIC_CONSTR_EXPR_FROM_CONCEPT_P(NODE) \ 1726 TREE_LANG_FLAG_1 (ATOMIC_CONSTR_CHECK (NODE)) 1727 1728 /* The expression of an atomic constraint. */ 1729 #define ATOMIC_CONSTR_EXPR(NODE) \ 1730 CONSTR_EXPR (ATOMIC_CONSTR_CHECK (NODE)) 1731 1732 /* The concept of a concept check. */ 1733 #define CHECK_CONSTR_CONCEPT(NODE) \ 1734 TREE_OPERAND (TREE_CHECK (NODE, CHECK_CONSTR), 0) 1735 1736 /* The template arguments of a concept check. */ 1737 #define CHECK_CONSTR_ARGS(NODE) \ 1738 TREE_OPERAND (TREE_CHECK (NODE, CHECK_CONSTR), 1) 1739 1740 /* Whether a PARM_DECL represents a local parameter in a 1741 requires-expression. */ 1742 #define CONSTRAINT_VAR_P(NODE) \ 1743 DECL_LANG_FLAG_2 (TREE_CHECK (NODE, PARM_DECL)) 1744 1745 /* The concept constraining this constrained template-parameter. */ 1746 #define CONSTRAINED_PARM_CONCEPT(NODE) \ 1747 DECL_SIZE_UNIT (TYPE_DECL_CHECK (NODE)) 1748 /* Any extra template arguments specified for a constrained 1749 template-parameter. */ 1750 #define CONSTRAINED_PARM_EXTRA_ARGS(NODE) \ 1751 DECL_SIZE (TYPE_DECL_CHECK (NODE)) 1752 /* The first template parameter of CONSTRAINED_PARM_CONCEPT to be used as a 1753 prototype for the constrained parameter in finish_shorthand_constraint, 1754 attached for convenience. */ 1755 #define CONSTRAINED_PARM_PROTOTYPE(NODE) \ 1756 DECL_INITIAL (TYPE_DECL_CHECK (NODE)) 1757 1758 /* Module flags on FUNCTION,VAR,TYPE,CONCEPT or NAMESPACE 1759 A TEMPLATE_DECL holds them on the DECL_TEMPLATE_RESULT object -- 1760 it's just not practical to keep them consistent. */ 1761 #define DECL_MODULE_CHECK(NODE) \ 1762 TREE_NOT_CHECK (NODE, TEMPLATE_DECL) 1763 1764 /* In the purview of a named module (or in the purview of the 1765 header-unit being compiled). */ 1766 #define DECL_MODULE_PURVIEW_P(N) \ 1767 (DECL_LANG_SPECIFIC (DECL_MODULE_CHECK (N))->u.base.module_purview_p) 1768 1769 /* Attached to the named module it is in the purview of. Decls 1770 attached to the global module will have this false. */ 1771 #define DECL_MODULE_ATTACH_P(N) \ 1772 (DECL_LANG_SPECIFIC (DECL_MODULE_CHECK (N))->u.base.module_attach_p) 1773 1774 /* True if the live version of the decl was imported. */ 1775 #define DECL_MODULE_IMPORT_P(NODE) \ 1776 (DECL_LANG_SPECIFIC (DECL_MODULE_CHECK (NODE))->u.base.module_import_p) 1777 1778 /* True if this decl is in the entity hash & array. This means that 1779 some variant was imported, even if DECL_MODULE_IMPORT_P is false. */ 1780 #define DECL_MODULE_ENTITY_P(NODE) \ 1781 (DECL_LANG_SPECIFIC (DECL_MODULE_CHECK (NODE))->u.base.module_entity_p) 1782 1783 /* DECL that has attached decls for ODR-relatedness. */ 1784 #define DECL_MODULE_KEYED_DECLS_P(NODE) \ 1785 (DECL_LANG_SPECIFIC (DECL_MODULE_CHECK (NODE))->u.base.module_keyed_decls_p) 1786 1787 /* Whether this is an exported DECL. Held on any decl that can appear 1788 at namespace scope (function, var, type, template, const or 1789 namespace). templates copy from their template_result, consts have 1790 it for unscoped enums. */ 1791 #define DECL_MODULE_EXPORT_P(NODE) TREE_LANG_FLAG_3 (NODE) 1792 1793 1794 /* The list of local parameters introduced by this requires-expression, 1796 in the form of a chain of PARM_DECLs. */ 1797 #define REQUIRES_EXPR_PARMS(NODE) \ 1798 TREE_OPERAND (TREE_CHECK (NODE, REQUIRES_EXPR), 0) 1799 1800 /* A TREE_LIST of the requirements for this requires-expression. 1801 The requirements are stored in lexical order within the TREE_VALUE 1802 of each TREE_LIST node. The TREE_PURPOSE of each node is unused. */ 1803 #define REQUIRES_EXPR_REQS(NODE) \ 1804 TREE_OPERAND (TREE_CHECK (NODE, REQUIRES_EXPR), 1) 1805 1806 /* Like PACK_EXPANSION_EXTRA_ARGS, for requires-expressions. */ 1807 #define REQUIRES_EXPR_EXTRA_ARGS(NODE) \ 1808 TREE_OPERAND (TREE_CHECK (NODE, REQUIRES_EXPR), 2) 1809 1810 enum cp_tree_node_structure_enum { 1811 TS_CP_GENERIC, 1812 TS_CP_IDENTIFIER, 1813 TS_CP_TPI, 1814 TS_CP_PTRMEM, 1815 TS_CP_OVERLOAD, 1816 TS_CP_BINDING_VECTOR, 1817 TS_CP_BASELINK, 1818 TS_CP_TEMPLATE_DECL, 1819 TS_CP_DEFERRED_PARSE, 1820 TS_CP_DEFERRED_NOEXCEPT, 1821 TS_CP_STATIC_ASSERT, 1822 TS_CP_ARGUMENT_PACK_SELECT, 1823 TS_CP_TRAIT_EXPR, 1824 TS_CP_LAMBDA_EXPR, 1825 TS_CP_TEMPLATE_INFO, 1826 TS_CP_CONSTRAINT_INFO, 1827 TS_CP_USERDEF_LITERAL 1828 }; 1829 1830 /* The resulting tree type. */ 1831 union GTY((desc ("cp_tree_node_structure (&%h)"), 1832 chain_next ("(union lang_tree_node *) c_tree_chain_next (&%h.generic)"))) lang_tree_node { 1833 union tree_node GTY ((tag ("TS_CP_GENERIC"), 1834 desc ("tree_node_structure (&%h)"))) generic; 1835 struct template_parm_index GTY ((tag ("TS_CP_TPI"))) tpi; 1836 struct ptrmem_cst GTY ((tag ("TS_CP_PTRMEM"))) ptrmem; 1837 struct tree_overload GTY ((tag ("TS_CP_OVERLOAD"))) overload; 1838 struct tree_binding_vec GTY ((tag ("TS_CP_BINDING_VECTOR"))) binding_vec; 1839 struct tree_baselink GTY ((tag ("TS_CP_BASELINK"))) baselink; 1840 struct tree_template_decl GTY ((tag ("TS_CP_TEMPLATE_DECL"))) template_decl; 1841 struct tree_deferred_parse GTY ((tag ("TS_CP_DEFERRED_PARSE"))) deferred_parse; 1842 struct tree_deferred_noexcept GTY ((tag ("TS_CP_DEFERRED_NOEXCEPT"))) deferred_noexcept; 1843 struct lang_identifier GTY ((tag ("TS_CP_IDENTIFIER"))) identifier; 1844 struct tree_static_assert GTY ((tag ("TS_CP_STATIC_ASSERT"))) 1845 static_assertion; 1846 struct tree_argument_pack_select GTY ((tag ("TS_CP_ARGUMENT_PACK_SELECT"))) 1847 argument_pack_select; 1848 struct tree_trait_expr GTY ((tag ("TS_CP_TRAIT_EXPR"))) 1849 trait_expression; 1850 struct tree_lambda_expr GTY ((tag ("TS_CP_LAMBDA_EXPR"))) 1851 lambda_expression; 1852 struct tree_template_info GTY ((tag ("TS_CP_TEMPLATE_INFO"))) 1853 template_info; 1854 struct tree_constraint_info GTY ((tag ("TS_CP_CONSTRAINT_INFO"))) 1855 constraint_info; 1856 struct tree_userdef_literal GTY ((tag ("TS_CP_USERDEF_LITERAL"))) 1857 userdef_literal; 1858 }; 1859 1860 1861 struct GTY(()) cp_omp_declare_target_attr { 1863 bool attr_syntax; 1864 int device_type; 1865 bool indirect; 1866 }; 1867 1868 struct GTY(()) cp_omp_begin_assumes_data { 1869 bool attr_syntax; 1870 }; 1871 1872 /* Global state. */ 1873 1874 struct GTY(()) saved_scope { 1875 vec<cxx_saved_binding, va_gc> *old_bindings; 1876 tree old_namespace; 1877 vec<tree, va_gc> *decl_ns_list; 1878 tree class_name; 1879 tree class_type; 1880 tree access_specifier; 1881 tree function_decl; 1882 vec<tree, va_gc> *lang_base; 1883 tree lang_name; 1884 tree template_parms; 1885 cp_binding_level *x_previous_class_level; 1886 tree x_saved_tree; 1887 1888 /* Only used for uses of this in trailing return type. */ 1889 tree x_current_class_ptr; 1890 tree x_current_class_ref; 1891 1892 int x_processing_template_decl; 1893 int x_processing_specialization; 1894 int x_processing_constraint; 1895 int x_processing_contract_condition; 1896 int suppress_location_wrappers; 1897 BOOL_BITFIELD x_processing_explicit_instantiation : 1; 1898 BOOL_BITFIELD need_pop_function_context : 1; 1899 1900 /* Nonzero if we are parsing the discarded statement of a constexpr 1901 if-statement. */ 1902 BOOL_BITFIELD discarded_stmt : 1; 1903 /* Nonzero if we are parsing or instantiating the compound-statement 1904 of consteval if statement. Also set while processing an immediate 1905 invocation. */ 1906 BOOL_BITFIELD consteval_if_p : 1; 1907 1908 int unevaluated_operand; 1909 int inhibit_evaluation_warnings; 1910 int noexcept_operand; 1911 int ref_temp_count; 1912 1913 struct stmt_tree_s x_stmt_tree; 1914 1915 cp_binding_level *class_bindings; 1916 cp_binding_level *bindings; 1917 1918 hash_map<tree, tree> *GTY((skip)) x_local_specializations; 1919 vec<cp_omp_declare_target_attr, va_gc> *omp_declare_target_attribute; 1920 vec<cp_omp_begin_assumes_data, va_gc> *omp_begin_assumes; 1921 1922 struct saved_scope *prev; 1923 }; 1924 1925 extern GTY(()) struct saved_scope *scope_chain; 1926 1927 /* The current open namespace. */ 1928 1929 #define current_namespace scope_chain->old_namespace 1930 1931 /* The stack for namespaces of current declarations. */ 1932 1933 #define decl_namespace_list scope_chain->decl_ns_list 1934 1935 /* IDENTIFIER_NODE: name of current class */ 1936 1937 #define current_class_name scope_chain->class_name 1938 1939 /* _TYPE: the type of the current class */ 1940 1941 #define current_class_type scope_chain->class_type 1942 1943 /* When parsing a class definition, the access specifier most recently 1944 given by the user, or, if no access specifier was given, the 1945 default value appropriate for the kind of class (i.e., struct, 1946 class, or union). */ 1947 1948 #define current_access_specifier scope_chain->access_specifier 1949 1950 /* Pointer to the top of the language name stack. */ 1951 1952 #define current_lang_base scope_chain->lang_base 1953 #define current_lang_name scope_chain->lang_name 1954 1955 /* When parsing a template declaration, a TREE_LIST represents the 1956 active template parameters. Each node in the list represents one 1957 level of template parameters. The innermost level is first in the 1958 list. The depth of each level is stored as an INTEGER_CST in the 1959 TREE_PURPOSE of each node. The parameters for that level are 1960 stored in the TREE_VALUE. */ 1961 1962 #define current_template_parms scope_chain->template_parms 1963 #define current_template_depth \ 1964 (current_template_parms ? TMPL_PARMS_DEPTH (current_template_parms) : 0) 1965 #define in_template_context (current_template_parms != NULL_TREE) 1966 1967 #define processing_template_decl scope_chain->x_processing_template_decl 1968 #define processing_specialization scope_chain->x_processing_specialization 1969 #define processing_explicit_instantiation scope_chain->x_processing_explicit_instantiation 1970 1971 /* Nonzero if we are parsing the conditional expression of a contract 1972 condition. These expressions appear outside the paramter list (like a 1973 trailing return type), but are potentially evaluated. */ 1974 1975 #define processing_contract_condition scope_chain->x_processing_contract_condition 1976 1977 #define in_discarded_stmt scope_chain->discarded_stmt 1978 #define in_consteval_if_p scope_chain->consteval_if_p 1979 1980 #define current_ref_temp_count scope_chain->ref_temp_count 1981 1982 /* RAII sentinel to handle clearing processing_template_decl and restoring 1983 it when done. */ 1984 1985 class processing_template_decl_sentinel 1986 { 1987 public: 1988 int saved; 1989 processing_template_decl_sentinel (bool reset = true) 1990 : saved (processing_template_decl) 1991 { 1992 if (reset) 1993 processing_template_decl = 0; 1994 } 1995 ~processing_template_decl_sentinel() 1996 { 1997 processing_template_decl = saved; 1998 } 1999 }; 2000 2001 /* RAII sentinel to disable certain warnings during template substitution 2002 and elsewhere. */ 2003 2004 class warning_sentinel 2005 { 2006 public: 2007 int &flag; 2008 int val; 2009 warning_sentinel(int& flag, bool suppress=true) 2010 : flag(flag), val(flag) { if (suppress) flag = 0; } 2011 ~warning_sentinel() { flag = val; } 2012 }; 2013 2014 /* RAII sentinel to temporarily override input_location. This will not set 2015 input_location to UNKNOWN_LOCATION or BUILTINS_LOCATION. */ 2016 2017 class iloc_sentinel 2018 { 2019 location_t saved_loc; 2020 public: 2021 iloc_sentinel (location_t loc): saved_loc (input_location) 2022 { 2023 if (loc >= RESERVED_LOCATION_COUNT) 2024 input_location = loc; 2025 } 2026 ~iloc_sentinel () 2027 { 2028 input_location = saved_loc; 2029 } 2030 }; 2031 2032 /* RAII sentinel that saves the value of a variable, optionally 2033 overrides it right away, and restores its value when the sentinel 2034 id destructed. */ 2035 2036 template <typename T> 2037 class temp_override 2038 { 2039 T& overridden_variable; 2040 T saved_value; 2041 public: 2042 temp_override(T& var) : overridden_variable (var), saved_value (var) {} 2043 temp_override(T& var, T overrider) 2044 : overridden_variable (var), saved_value (var) 2045 { 2046 overridden_variable = overrider; 2047 } 2048 ~temp_override() { overridden_variable = saved_value; } 2049 }; 2050 2051 /* Wrapping a template parameter in type_identity_t hides it from template 2052 argument deduction. */ 2053 #if __cpp_lib_type_identity 2054 using std::type_identity_t; 2055 #else 2056 template <typename T> 2057 struct type_identity { typedef T type; }; 2058 template <typename T> 2059 using type_identity_t = typename type_identity<T>::type; 2060 #endif 2061 2062 /* Object generator function for temp_override, so you don't need to write the 2063 type of the object as a template argument. 2064 2065 Use as auto x = make_temp_override (flag); */ 2066 2067 template <typename T> 2068 inline temp_override<T> 2069 make_temp_override (T& var) 2070 { 2071 return { var }; 2072 } 2073 2074 /* Likewise, but use as auto x = make_temp_override (flag, value); */ 2075 2076 template <typename T> 2077 inline temp_override<T> 2078 make_temp_override (T& var, type_identity_t<T> overrider) 2079 { 2080 return { var, overrider }; 2081 } 2082 2083 /* temp_override for in_consteval_if_p, which can't use make_temp_override 2084 because it is a bitfield. */ 2085 2086 struct in_consteval_if_p_temp_override { 2087 bool save_in_consteval_if_p; 2088 in_consteval_if_p_temp_override () 2089 : save_in_consteval_if_p (in_consteval_if_p) {} 2090 void reset () { in_consteval_if_p = save_in_consteval_if_p; } 2091 ~in_consteval_if_p_temp_override () 2092 { reset (); } 2093 }; 2094 2095 /* The cached class binding level, from the most recently exited 2096 class, or NULL if none. */ 2097 2098 #define previous_class_level scope_chain->x_previous_class_level 2099 2100 /* A map from local variable declarations in the body of the template 2101 presently being instantiated to the corresponding instantiated 2102 local variables. */ 2103 2104 #define local_specializations scope_chain->x_local_specializations 2105 2106 /* Nonzero if we are parsing the operand of a noexcept operator. */ 2107 2108 #define cp_noexcept_operand scope_chain->noexcept_operand 2109 2110 struct named_label_entry; /* Defined in decl.cc. */ 2111 2112 struct named_label_hash : ggc_remove <named_label_entry *> 2113 { 2114 typedef named_label_entry *value_type; 2115 typedef tree compare_type; /* An identifier. */ 2116 2117 inline static hashval_t hash (value_type); 2118 inline static bool equal (const value_type, compare_type); 2119 2120 static const bool empty_zero_p = true; 2121 inline static void mark_empty (value_type &p) {p = NULL;} 2122 inline static bool is_empty (value_type p) {return !p;} 2123 2124 /* Nothing is deletable. Everything is insertable. */ 2125 inline static bool is_deleted (value_type) { return false; } 2126 inline static void mark_deleted (value_type) { gcc_unreachable (); } 2127 }; 2128 2129 /* Global state pertinent to the current function. */ 2130 2131 struct GTY(()) language_function { 2132 struct c_language_function base; 2133 2134 tree x_current_class_ptr; 2135 tree x_current_class_ref; 2136 tree x_eh_spec_block; 2137 tree x_in_charge_parm; 2138 tree x_vtt_parm; 2139 tree x_return_value; 2140 2141 BOOL_BITFIELD returns_value : 1; 2142 BOOL_BITFIELD returns_null : 1; 2143 BOOL_BITFIELD returns_abnormally : 1; 2144 BOOL_BITFIELD infinite_loop: 1; 2145 BOOL_BITFIELD x_in_function_try_handler : 1; 2146 BOOL_BITFIELD x_in_base_initializer : 1; 2147 2148 /* True if this function can throw an exception. */ 2149 BOOL_BITFIELD can_throw : 1; 2150 2151 BOOL_BITFIELD invalid_constexpr : 1; 2152 BOOL_BITFIELD throwing_cleanup : 1; 2153 2154 hash_table<named_label_hash> *x_named_labels; 2155 2156 cp_binding_level *bindings; 2157 2158 /* Tracking possibly infinite loops. This is a vec<tree> only because 2159 vec<bool> doesn't work with gtype. */ 2160 vec<tree, va_gc> *infinite_loops; 2161 }; 2162 2163 /* The current C++-specific per-function global variables. */ 2164 2165 #define cp_function_chain (cfun->language) 2166 2167 /* When we're processing a member function, current_class_ptr is the 2168 PARM_DECL for the `this' pointer. The current_class_ref is an 2169 expression for `*this'. */ 2170 2171 #define current_class_ptr \ 2172 (*(cfun && cp_function_chain \ 2173 ? &cp_function_chain->x_current_class_ptr \ 2174 : &scope_chain->x_current_class_ptr)) 2175 #define current_class_ref \ 2176 (*(cfun && cp_function_chain \ 2177 ? &cp_function_chain->x_current_class_ref \ 2178 : &scope_chain->x_current_class_ref)) 2179 2180 /* The EH_SPEC_BLOCK for the exception-specifiers for the current 2181 function, if any. */ 2182 2183 #define current_eh_spec_block cp_function_chain->x_eh_spec_block 2184 2185 /* The `__in_chrg' parameter for the current function. Only used for 2186 constructors and destructors. */ 2187 2188 #define current_in_charge_parm cp_function_chain->x_in_charge_parm 2189 2190 /* The `__vtt_parm' parameter for the current function. Only used for 2191 constructors and destructors. */ 2192 2193 #define current_vtt_parm cp_function_chain->x_vtt_parm 2194 2195 /* A boolean flag to control whether we need to clean up the return value if a 2196 local destructor throws. Only used in functions that return by value a 2197 class with a destructor. Which 'tors don't, so we can use the same 2198 field as current_vtt_parm. */ 2199 2200 #define current_retval_sentinel current_vtt_parm 2201 2202 /* Set to 0 at beginning of a function definition, set to 1 if 2203 a return statement that specifies a return value is seen. */ 2204 2205 #define current_function_returns_value cp_function_chain->returns_value 2206 2207 /* Set to 0 at beginning of a function definition, set to 1 if 2208 a return statement with no argument is seen. */ 2209 2210 #define current_function_returns_null cp_function_chain->returns_null 2211 2212 /* Set to 0 at beginning of a function definition, set to 1 if 2213 a call to a noreturn function is seen. */ 2214 2215 #define current_function_returns_abnormally \ 2216 cp_function_chain->returns_abnormally 2217 2218 /* Set to 0 at beginning of a function definition, set to 1 if we see an 2219 obvious infinite loop. This can have false positives and false 2220 negatives, so it should only be used as a heuristic. */ 2221 2222 #define current_function_infinite_loop cp_function_chain->infinite_loop 2223 2224 /* Nonzero if we are processing a base initializer. Zero elsewhere. */ 2225 #define in_base_initializer cp_function_chain->x_in_base_initializer 2226 2227 #define in_function_try_handler cp_function_chain->x_in_function_try_handler 2228 2229 /* Expression always returned from function, or error_mark_node 2230 otherwise, for use by the automatic named return value optimization. */ 2231 2232 #define current_function_return_value \ 2233 (cp_function_chain->x_return_value) 2234 2235 /* In parser.cc. */ 2236 extern tree cp_literal_operator_id (const char *); 2237 2238 #define NON_ERROR(NODE) ((NODE) == error_mark_node ? NULL_TREE : (NODE)) 2239 2240 /* TRUE if a tree code represents a statement. */ 2241 extern bool statement_code_p[MAX_TREE_CODES]; 2242 2243 #define STATEMENT_CODE_P(CODE) statement_code_p[(int) (CODE)] 2244 2245 enum languages { lang_c, lang_cplusplus }; 2246 2247 /* Macros to make error reporting functions' lives easier. */ 2248 #define TYPE_LINKAGE_IDENTIFIER(NODE) \ 2249 (TYPE_IDENTIFIER (TYPE_MAIN_VARIANT (NODE))) 2250 #define TYPE_NAME_STRING(NODE) (IDENTIFIER_POINTER (TYPE_IDENTIFIER (NODE))) 2251 #define TYPE_NAME_LENGTH(NODE) (IDENTIFIER_LENGTH (TYPE_IDENTIFIER (NODE))) 2252 2253 /* Any kind of anonymous type. */ 2254 #define TYPE_ANON_P(NODE) \ 2255 (TYPE_LINKAGE_IDENTIFIER (NODE) \ 2256 && IDENTIFIER_ANON_P (TYPE_LINKAGE_IDENTIFIER (NODE))) 2257 2258 /* Nonzero if NODE, a TYPE, has no name for linkage purposes. */ 2259 #define TYPE_UNNAMED_P(NODE) \ 2260 (TYPE_ANON_P (NODE) \ 2261 && !IDENTIFIER_LAMBDA_P (TYPE_LINKAGE_IDENTIFIER (NODE))) 2262 2263 /* The _DECL for this _TYPE. */ 2264 #define TYPE_MAIN_DECL(NODE) (TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE))) 2265 2266 /* Nonzero if T is a type that could resolve to any kind of concrete type 2267 at instantiation time. */ 2268 #define WILDCARD_TYPE_P(T) \ 2269 (TREE_CODE (T) == TEMPLATE_TYPE_PARM \ 2270 || TREE_CODE (T) == TYPENAME_TYPE \ 2271 || TREE_CODE (T) == TYPEOF_TYPE \ 2272 || TREE_CODE (T) == BOUND_TEMPLATE_TEMPLATE_PARM \ 2273 || TREE_CODE (T) == DECLTYPE_TYPE \ 2274 || TREE_CODE (T) == TRAIT_TYPE \ 2275 || TREE_CODE (T) == DEPENDENT_OPERATOR_TYPE) 2276 2277 /* Nonzero if T is a class (or struct or union) type. Also nonzero 2278 for template type parameters, typename types, and instantiated 2279 template template parameters. Keep these checks in ascending code 2280 order. */ 2281 #define MAYBE_CLASS_TYPE_P(T) (WILDCARD_TYPE_P (T) || CLASS_TYPE_P (T)) 2282 2283 /* Set CLASS_TYPE_P for T to VAL. T must be a class, struct, or 2284 union type. */ 2285 #define SET_CLASS_TYPE_P(T, VAL) \ 2286 (TYPE_LANG_FLAG_5 (RECORD_OR_UNION_CHECK (T)) = (VAL)) 2287 2288 /* Nonzero if T is a class type. Zero for template type parameters, 2289 typename types, and so forth. */ 2290 #define CLASS_TYPE_P(T) \ 2291 (RECORD_OR_UNION_CODE_P (TREE_CODE (T)) && TYPE_LANG_FLAG_5 (T)) 2292 2293 /* Nonzero if T is a class type but not a union. */ 2294 #define NON_UNION_CLASS_TYPE_P(T) \ 2295 (TREE_CODE (T) == RECORD_TYPE && TYPE_LANG_FLAG_5 (T)) 2296 2297 /* Keep these checks in ascending code order. */ 2298 #define RECORD_OR_UNION_CODE_P(T) \ 2299 ((T) == RECORD_TYPE || (T) == UNION_TYPE) 2300 #define OVERLOAD_TYPE_P(T) \ 2301 (CLASS_TYPE_P (T) || TREE_CODE (T) == ENUMERAL_TYPE) 2302 2303 /* True if this type is dependent. This predicate is only valid if 2304 TYPE_DEPENDENT_P_VALID is true. */ 2305 #define TYPE_DEPENDENT_P(NODE) TYPE_LANG_FLAG_0 (NODE) 2306 2307 /* True if dependent_type_p has been called for this type, with the 2308 result that TYPE_DEPENDENT_P is valid. */ 2309 #define TYPE_DEPENDENT_P_VALID(NODE) TYPE_LANG_FLAG_6(NODE) 2310 2311 /* Nonzero if this type is const-qualified. */ 2312 #define CP_TYPE_CONST_P(NODE) \ 2313 ((cp_type_quals (NODE) & TYPE_QUAL_CONST) != 0) 2314 2315 /* Nonzero if this type is volatile-qualified. */ 2316 #define CP_TYPE_VOLATILE_P(NODE) \ 2317 ((cp_type_quals (NODE) & TYPE_QUAL_VOLATILE) != 0) 2318 2319 /* Nonzero if this type is restrict-qualified. */ 2320 #define CP_TYPE_RESTRICT_P(NODE) \ 2321 ((cp_type_quals (NODE) & TYPE_QUAL_RESTRICT) != 0) 2322 2323 /* Nonzero if this type is const-qualified, but not 2324 volatile-qualified. Other qualifiers are ignored. This macro is 2325 used to test whether or not it is OK to bind an rvalue to a 2326 reference. */ 2327 #define CP_TYPE_CONST_NON_VOLATILE_P(NODE) \ 2328 ((cp_type_quals (NODE) & (TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE)) \ 2329 == TYPE_QUAL_CONST) 2330 2331 #define FUNCTION_ARG_CHAIN(NODE) \ 2332 TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (NODE))) 2333 2334 /* Given a FUNCTION_DECL, returns the first TREE_LIST out of TYPE_ARG_TYPES 2335 which refers to a user-written parameter. */ 2336 #define FUNCTION_FIRST_USER_PARMTYPE(NODE) \ 2337 skip_artificial_parms_for ((NODE), TYPE_ARG_TYPES (TREE_TYPE (NODE))) 2338 2339 /* Similarly, but for DECL_ARGUMENTS. */ 2340 #define FUNCTION_FIRST_USER_PARM(NODE) \ 2341 skip_artificial_parms_for ((NODE), DECL_ARGUMENTS (NODE)) 2342 2343 /* Nonzero iff TYPE is derived from PARENT. Ignores accessibility and 2344 ambiguity issues. */ 2345 #define DERIVED_FROM_P(PARENT, TYPE) \ 2346 (lookup_base ((TYPE), (PARENT), ba_any, NULL, tf_none) != NULL_TREE) 2347 2348 /* Gives the visibility specification for a class type. */ 2349 #define CLASSTYPE_VISIBILITY(TYPE) \ 2350 DECL_VISIBILITY (TYPE_MAIN_DECL (TYPE)) 2351 #define CLASSTYPE_VISIBILITY_SPECIFIED(TYPE) \ 2352 DECL_VISIBILITY_SPECIFIED (TYPE_MAIN_DECL (TYPE)) 2353 2354 struct GTY (()) tree_pair_s { 2355 tree purpose; 2356 tree value; 2357 }; 2358 typedef tree_pair_s *tree_pair_p; 2359 2360 /* This structure provides additional information above and beyond 2361 what is provide in the ordinary tree_type. In the past, we used it 2362 for the types of class types, template parameters types, typename 2363 types, and so forth. However, there can be many (tens to hundreds 2364 of thousands) of template parameter types in a compilation, and 2365 there's no need for this additional information in that case. 2366 Therefore, we now use this data structure only for class types. 2367 2368 In the past, it was thought that there would be relatively few 2369 class types. However, in the presence of heavy use of templates, 2370 many (i.e., thousands) of classes can easily be generated. 2371 Therefore, we should endeavor to keep the size of this structure to 2372 a minimum. */ 2373 struct GTY(()) lang_type { 2374 unsigned char align; 2375 2376 unsigned has_type_conversion : 1; 2377 unsigned has_copy_ctor : 1; 2378 unsigned has_default_ctor : 1; 2379 unsigned const_needs_init : 1; 2380 unsigned ref_needs_init : 1; 2381 unsigned has_const_copy_assign : 1; 2382 unsigned use_template : 2; 2383 2384 unsigned has_mutable : 1; 2385 unsigned com_interface : 1; 2386 unsigned non_pod_class : 1; 2387 unsigned nearly_empty_p : 1; 2388 unsigned user_align : 1; 2389 unsigned has_copy_assign : 1; 2390 unsigned has_new : 1; 2391 unsigned has_array_new : 1; 2392 2393 unsigned gets_delete : 2; 2394 unsigned interface_only : 1; 2395 unsigned interface_unknown : 1; 2396 unsigned contains_empty_class_p : 1; 2397 unsigned anon_aggr : 1; 2398 unsigned non_zero_init : 1; 2399 unsigned empty_p : 1; 2400 /* 32 bits allocated. */ 2401 2402 unsigned vec_new_uses_cookie : 1; 2403 unsigned declared_class : 1; 2404 unsigned diamond_shaped : 1; 2405 unsigned repeated_base : 1; 2406 unsigned being_defined : 1; 2407 unsigned debug_requested : 1; 2408 unsigned fields_readonly : 1; 2409 unsigned ptrmemfunc_flag : 1; 2410 2411 unsigned lazy_default_ctor : 1; 2412 unsigned lazy_copy_ctor : 1; 2413 unsigned lazy_copy_assign : 1; 2414 unsigned lazy_destructor : 1; 2415 unsigned has_const_copy_ctor : 1; 2416 unsigned has_complex_copy_ctor : 1; 2417 unsigned has_complex_copy_assign : 1; 2418 unsigned non_aggregate : 1; 2419 2420 unsigned has_complex_dflt : 1; 2421 unsigned has_list_ctor : 1; 2422 unsigned non_std_layout : 1; 2423 unsigned is_literal : 1; 2424 unsigned lazy_move_ctor : 1; 2425 unsigned lazy_move_assign : 1; 2426 unsigned has_complex_move_ctor : 1; 2427 unsigned has_complex_move_assign : 1; 2428 2429 unsigned has_constexpr_ctor : 1; 2430 unsigned unique_obj_representations : 1; 2431 unsigned unique_obj_representations_set : 1; 2432 bool erroneous : 1; 2433 bool non_pod_aggregate : 1; 2434 2435 /* When adding a flag here, consider whether or not it ought to 2436 apply to a template instance if it applies to the template. If 2437 so, make sure to copy it in instantiate_class_template! */ 2438 2439 /* There are some bits left to fill out a 32-bit word. Keep track 2440 of this by updating the size of this bitfield whenever you add or 2441 remove a flag. */ 2442 unsigned dummy : 3; 2443 2444 tree primary_base; 2445 vec<tree_pair_s, va_gc> *vcall_indices; 2446 tree vtables; 2447 tree typeinfo_var; 2448 vec<tree, va_gc> *vbases; 2449 tree as_base; 2450 vec<tree, va_gc> *pure_virtuals; 2451 tree friend_classes; 2452 vec<tree, va_gc> * GTY((reorder ("resort_type_member_vec"))) members; 2453 tree key_method; 2454 tree decl_list; 2455 tree befriending_classes; 2456 /* In a RECORD_TYPE, information specific to Objective-C++, such 2457 as a list of adopted protocols or a pointer to a corresponding 2458 @interface. See objc/objc-act.h for details. */ 2459 tree objc_info; 2460 /* FIXME reuse another field? */ 2461 tree lambda_expr; 2462 }; 2463 2464 /* We used to have a variant type for lang_type. Keep the name of the 2465 checking accessor for the sole survivor. */ 2466 #define LANG_TYPE_CLASS_CHECK(NODE) (TYPE_LANG_SPECIFIC (NODE)) 2467 2468 /* Nonzero for _CLASSTYPE means that operator delete is defined. */ 2469 #define TYPE_GETS_DELETE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->gets_delete) 2470 #define TYPE_GETS_REG_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 1) 2471 #define TYPE_GETS_VEC_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 2) 2472 2473 /* Nonzero if `new NODE[x]' should cause the allocation of extra 2474 storage to indicate how many array elements are in use. */ 2475 #define TYPE_VEC_NEW_USES_COOKIE(NODE) \ 2476 (CLASS_TYPE_P (NODE) \ 2477 && LANG_TYPE_CLASS_CHECK (NODE)->vec_new_uses_cookie) 2478 2479 /* Nonzero means that this _CLASSTYPE node defines ways of converting 2480 itself to other types. */ 2481 #define TYPE_HAS_CONVERSION(NODE) \ 2482 (LANG_TYPE_CLASS_CHECK (NODE)->has_type_conversion) 2483 2484 /* Nonzero means that NODE (a class type) has a default constructor -- 2485 but that it has not yet been declared. */ 2486 #define CLASSTYPE_LAZY_DEFAULT_CTOR(NODE) \ 2487 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_default_ctor) 2488 2489 /* Nonzero means that NODE (a class type) has a copy constructor -- 2490 but that it has not yet been declared. */ 2491 #define CLASSTYPE_LAZY_COPY_CTOR(NODE) \ 2492 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_ctor) 2493 2494 /* Nonzero means that NODE (a class type) has a move constructor -- 2495 but that it has not yet been declared. */ 2496 #define CLASSTYPE_LAZY_MOVE_CTOR(NODE) \ 2497 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_move_ctor) 2498 2499 /* Nonzero means that NODE (a class type) has an assignment operator 2500 -- but that it has not yet been declared. */ 2501 #define CLASSTYPE_LAZY_COPY_ASSIGN(NODE) \ 2502 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_assign) 2503 2504 /* Nonzero means that NODE (a class type) has an assignment operator 2505 -- but that it has not yet been declared. */ 2506 #define CLASSTYPE_LAZY_MOVE_ASSIGN(NODE) \ 2507 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_move_assign) 2508 2509 /* Nonzero means that NODE (a class type) has a destructor -- but that 2510 it has not yet been declared. */ 2511 #define CLASSTYPE_LAZY_DESTRUCTOR(NODE) \ 2512 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_destructor) 2513 2514 /* Nonzero means that NODE (a class type) is final */ 2515 #define CLASSTYPE_FINAL(NODE) \ 2516 TYPE_FINAL_P (NODE) 2517 2518 2519 /* Nonzero means that this _CLASSTYPE node overloads operator=(X&). */ 2520 #define TYPE_HAS_COPY_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_copy_assign) 2521 2522 /* True iff the class type NODE has an "operator =" whose parameter 2523 has a parameter of type "const X&". */ 2524 #define TYPE_HAS_CONST_COPY_ASSIGN(NODE) \ 2525 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_copy_assign) 2526 2527 /* Nonzero means that this _CLASSTYPE node has an X(X&) constructor. */ 2528 #define TYPE_HAS_COPY_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_copy_ctor) 2529 #define TYPE_HAS_CONST_COPY_CTOR(NODE) \ 2530 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_copy_ctor) 2531 2532 /* Nonzero if this class has an X(initializer_list<T>) constructor. */ 2533 #define TYPE_HAS_LIST_CTOR(NODE) \ 2534 (LANG_TYPE_CLASS_CHECK (NODE)->has_list_ctor) 2535 2536 /* Nonzero if this class has a constexpr constructor other than a copy/move 2537 constructor. Note that a class can have constexpr constructors for 2538 static initialization even if it isn't a literal class. */ 2539 #define TYPE_HAS_CONSTEXPR_CTOR(NODE) \ 2540 (LANG_TYPE_CLASS_CHECK (NODE)->has_constexpr_ctor) 2541 2542 /* Nonzero if this class defines an overloaded operator new. (An 2543 operator new [] doesn't count.) */ 2544 #define TYPE_HAS_NEW_OPERATOR(NODE) \ 2545 (LANG_TYPE_CLASS_CHECK (NODE)->has_new) 2546 2547 /* Nonzero if this class defines an overloaded operator new[]. */ 2548 #define TYPE_HAS_ARRAY_NEW_OPERATOR(NODE) \ 2549 (LANG_TYPE_CLASS_CHECK (NODE)->has_array_new) 2550 2551 /* Nonzero means that this type is being defined. I.e., the left brace 2552 starting the definition of this type has been seen. */ 2553 #define TYPE_BEING_DEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->being_defined) 2554 2555 /* Nonzero means that this type is either complete or being defined, so we 2556 can do lookup in it. */ 2557 #define COMPLETE_OR_OPEN_TYPE_P(NODE) \ 2558 (COMPLETE_TYPE_P (NODE) || (CLASS_TYPE_P (NODE) && TYPE_BEING_DEFINED (NODE))) 2559 2560 /* Mark bits for repeated base checks. */ 2561 #define TYPE_MARKED_P(NODE) TREE_LANG_FLAG_6 (TYPE_CHECK (NODE)) 2562 2563 /* Nonzero if the class NODE has multiple paths to the same (virtual) 2564 base object. */ 2565 #define CLASSTYPE_DIAMOND_SHAPED_P(NODE) \ 2566 (LANG_TYPE_CLASS_CHECK(NODE)->diamond_shaped) 2567 2568 /* Nonzero if the class NODE has multiple instances of the same base 2569 type. */ 2570 #define CLASSTYPE_REPEATED_BASE_P(NODE) \ 2571 (LANG_TYPE_CLASS_CHECK(NODE)->repeated_base) 2572 2573 /* The member function with which the vtable will be emitted: 2574 the first noninline non-pure-virtual member function. NULL_TREE 2575 if there is no key function or if this is a class template */ 2576 #define CLASSTYPE_KEY_METHOD(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->key_method) 2577 2578 /* Vector of members. During definition, it is unordered and only 2579 member functions are present. After completion it is sorted and 2580 contains both member functions and non-functions. STAT_HACK is 2581 involved to preserve oneslot per name invariant. */ 2582 #define CLASSTYPE_MEMBER_VEC(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->members) 2583 2584 /* For class templates, this is a TREE_LIST of all member data, 2585 functions, types, and friends in the order of declaration. 2586 The TREE_PURPOSE of each TREE_LIST is NULL_TREE for a friend, 2587 and the RECORD_TYPE for the class template otherwise. */ 2588 #define CLASSTYPE_DECL_LIST(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->decl_list) 2589 2590 /* A FUNCTION_DECL or OVERLOAD for the constructors for NODE. These 2591 are the constructors that take an in-charge parameter. */ 2592 #define CLASSTYPE_CONSTRUCTORS(NODE) \ 2593 (get_class_binding_direct (NODE, ctor_identifier)) 2594 2595 /* A FUNCTION_DECL for the destructor for NODE. This is the 2596 destructors that take an in-charge parameter. If 2597 CLASSTYPE_LAZY_DESTRUCTOR is true, then this entry will be NULL 2598 until the destructor is created with lazily_declare_fn. */ 2599 #define CLASSTYPE_DESTRUCTOR(NODE) \ 2600 (get_class_binding_direct (NODE, dtor_identifier)) 2601 2602 /* Nonzero if NODE has a primary base class, i.e., a base class with 2603 which it shares the virtual function table pointer. */ 2604 #define CLASSTYPE_HAS_PRIMARY_BASE_P(NODE) \ 2605 (CLASSTYPE_PRIMARY_BINFO (NODE) != NULL_TREE) 2606 2607 /* If non-NULL, this is the binfo for the primary base class, i.e., 2608 the base class which contains the virtual function table pointer 2609 for this class. */ 2610 #define CLASSTYPE_PRIMARY_BINFO(NODE) \ 2611 (LANG_TYPE_CLASS_CHECK (NODE)->primary_base) 2612 2613 /* A vector of BINFOs for the direct and indirect virtual base classes 2614 that this type uses in a post-order depth-first left-to-right 2615 order. (In other words, these bases appear in the order that they 2616 should be initialized.) */ 2617 #define CLASSTYPE_VBASECLASSES(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->vbases) 2618 2619 /* The type corresponding to NODE when NODE is used as a base class, 2620 i.e., NODE without virtual base classes or tail padding. */ 2621 #define CLASSTYPE_AS_BASE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->as_base) 2622 2623 /* True iff NODE is the CLASSTYPE_AS_BASE version of some type. */ 2624 #define IS_FAKE_BASE_TYPE(NODE) \ 2625 (TREE_CODE (NODE) == RECORD_TYPE \ 2626 && TYPE_CONTEXT (NODE) && CLASS_TYPE_P (TYPE_CONTEXT (NODE)) \ 2627 && CLASSTYPE_AS_BASE (TYPE_CONTEXT (NODE)) == (NODE)) 2628 2629 /* These are the size and alignment of the type without its virtual 2630 base classes, for when we use this type as a base itself. */ 2631 #define CLASSTYPE_SIZE(NODE) TYPE_SIZE (CLASSTYPE_AS_BASE (NODE)) 2632 #define CLASSTYPE_SIZE_UNIT(NODE) TYPE_SIZE_UNIT (CLASSTYPE_AS_BASE (NODE)) 2633 #define CLASSTYPE_ALIGN(NODE) TYPE_ALIGN (CLASSTYPE_AS_BASE (NODE)) 2634 #define CLASSTYPE_USER_ALIGN(NODE) TYPE_USER_ALIGN (CLASSTYPE_AS_BASE (NODE)) 2635 2636 /* The alignment of NODE, without its virtual bases, in bytes. */ 2637 #define CLASSTYPE_ALIGN_UNIT(NODE) \ 2638 (CLASSTYPE_ALIGN (NODE) / BITS_PER_UNIT) 2639 2640 /* A vec<tree> of virtual functions which cannot be inherited by 2641 derived classes. When deriving from this type, the derived 2642 class must provide its own definition for each of these functions. */ 2643 #define CLASSTYPE_PURE_VIRTUALS(NODE) \ 2644 (LANG_TYPE_CLASS_CHECK (NODE)->pure_virtuals) 2645 2646 /* Nonzero means that this type is an abstract class type. */ 2647 #define ABSTRACT_CLASS_TYPE_P(NODE) \ 2648 (CLASS_TYPE_P (NODE) && CLASSTYPE_PURE_VIRTUALS(NODE)) 2649 2650 /* Nonzero means that this type has an X() constructor. */ 2651 #define TYPE_HAS_DEFAULT_CONSTRUCTOR(NODE) \ 2652 (LANG_TYPE_CLASS_CHECK (NODE)->has_default_ctor) 2653 2654 /* Nonzero means that this type contains a mutable member. */ 2655 #define CLASSTYPE_HAS_MUTABLE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_mutable) 2656 #define TYPE_HAS_MUTABLE_P(NODE) (cp_has_mutable_p (NODE)) 2657 2658 /* Nonzero means that this class type is not POD for the purpose of layout 2659 (as defined in the ABI). This is different from the language's POD. */ 2660 #define CLASSTYPE_NON_LAYOUT_POD_P(NODE) \ 2661 (LANG_TYPE_CLASS_CHECK (NODE)->non_pod_class) 2662 2663 /* Nonzero means that this class type is a non-standard-layout class. */ 2664 #define CLASSTYPE_NON_STD_LAYOUT(NODE) \ 2665 (LANG_TYPE_CLASS_CHECK (NODE)->non_std_layout) 2666 2667 /* Nonzero means that this class type does have unique object 2668 representations. */ 2669 #define CLASSTYPE_UNIQUE_OBJ_REPRESENTATIONS(NODE) \ 2670 (LANG_TYPE_CLASS_CHECK (NODE)->unique_obj_representations) 2671 2672 /* Nonzero means that this class type has 2673 CLASSTYPE_UNIQUE_OBJ_REPRESENTATIONS computed. */ 2674 #define CLASSTYPE_UNIQUE_OBJ_REPRESENTATIONS_SET(NODE) \ 2675 (LANG_TYPE_CLASS_CHECK (NODE)->unique_obj_representations_set) 2676 2677 /* Nonzero means that this class contains pod types whose default 2678 initialization is not a zero initialization (namely, pointers to 2679 data members). */ 2680 #define CLASSTYPE_NON_ZERO_INIT_P(NODE) \ 2681 (LANG_TYPE_CLASS_CHECK (NODE)->non_zero_init) 2682 2683 /* Nonzero if this class is "empty" in the sense of the C++ ABI. */ 2684 #define CLASSTYPE_EMPTY_P(NODE) \ 2685 (LANG_TYPE_CLASS_CHECK (NODE)->empty_p) 2686 2687 /* Nonzero if this class is "nearly empty", i.e., contains only a 2688 virtual function table pointer. */ 2689 #define CLASSTYPE_NEARLY_EMPTY_P(NODE) \ 2690 (LANG_TYPE_CLASS_CHECK (NODE)->nearly_empty_p) 2691 2692 /* Nonzero if this class contains an empty subobject. */ 2693 #define CLASSTYPE_CONTAINS_EMPTY_CLASS_P(NODE) \ 2694 (LANG_TYPE_CLASS_CHECK (NODE)->contains_empty_class_p) 2695 2696 /* A list of class types of which this type is a friend. The 2697 TREE_VALUE is normally a TYPE, but will be a TEMPLATE_DECL in the 2698 case of a template friend. */ 2699 #define CLASSTYPE_FRIEND_CLASSES(NODE) \ 2700 (LANG_TYPE_CLASS_CHECK (NODE)->friend_classes) 2701 2702 /* A list of the classes which grant friendship to this class. */ 2703 #define CLASSTYPE_BEFRIENDING_CLASSES(NODE) \ 2704 (LANG_TYPE_CLASS_CHECK (NODE)->befriending_classes) 2705 2706 /* The associated LAMBDA_EXPR that made this class. */ 2707 #define CLASSTYPE_LAMBDA_EXPR(NODE) \ 2708 (LANG_TYPE_CLASS_CHECK (NODE)->lambda_expr) 2709 /* The extra mangling scope for this closure type. */ 2710 #define LAMBDA_TYPE_EXTRA_SCOPE(NODE) \ 2711 (LAMBDA_EXPR_EXTRA_SCOPE (CLASSTYPE_LAMBDA_EXPR (NODE))) 2712 2713 /* Say whether this node was declared as a "class" or a "struct". */ 2714 #define CLASSTYPE_DECLARED_CLASS(NODE) \ 2715 (LANG_TYPE_CLASS_CHECK (NODE)->declared_class) 2716 2717 /* Nonzero if this class has const members 2718 which have no specified initialization. */ 2719 #define CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE) \ 2720 (TYPE_LANG_SPECIFIC (NODE) \ 2721 ? LANG_TYPE_CLASS_CHECK (NODE)->const_needs_init : 0) 2722 #define SET_CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE, VALUE) \ 2723 (LANG_TYPE_CLASS_CHECK (NODE)->const_needs_init = (VALUE)) 2724 2725 /* Nonzero if this class has ref members 2726 which have no specified initialization. */ 2727 #define CLASSTYPE_REF_FIELDS_NEED_INIT(NODE) \ 2728 (TYPE_LANG_SPECIFIC (NODE) \ 2729 ? LANG_TYPE_CLASS_CHECK (NODE)->ref_needs_init : 0) 2730 #define SET_CLASSTYPE_REF_FIELDS_NEED_INIT(NODE, VALUE) \ 2731 (LANG_TYPE_CLASS_CHECK (NODE)->ref_needs_init = (VALUE)) 2732 2733 /* Nonzero if this class is included from a header file which employs 2734 `#pragma interface', and it is not included in its implementation file. */ 2735 #define CLASSTYPE_INTERFACE_ONLY(NODE) \ 2736 (LANG_TYPE_CLASS_CHECK (NODE)->interface_only) 2737 2738 /* True if we have already determined whether or not vtables, VTTs, 2739 typeinfo, and other similar per-class data should be emitted in 2740 this translation unit. This flag does not indicate whether or not 2741 these items should be emitted; it only indicates that we know one 2742 way or the other. */ 2743 #define CLASSTYPE_INTERFACE_KNOWN(NODE) \ 2744 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown == 0) 2745 /* The opposite of CLASSTYPE_INTERFACE_KNOWN. */ 2746 #define CLASSTYPE_INTERFACE_UNKNOWN(NODE) \ 2747 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown) 2748 2749 #define SET_CLASSTYPE_INTERFACE_UNKNOWN_X(NODE,X) \ 2750 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = !!(X)) 2751 #define SET_CLASSTYPE_INTERFACE_UNKNOWN(NODE) \ 2752 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 1) 2753 #define SET_CLASSTYPE_INTERFACE_KNOWN(NODE) \ 2754 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 0) 2755 2756 /* Nonzero if a _DECL node requires us to output debug info for this class. */ 2757 #define CLASSTYPE_DEBUG_REQUESTED(NODE) \ 2758 (LANG_TYPE_CLASS_CHECK (NODE)->debug_requested) 2759 2760 /* True if we saw errors while instantiating this class. */ 2761 #define CLASSTYPE_ERRONEOUS(NODE) \ 2762 (LANG_TYPE_CLASS_CHECK (NODE)->erroneous) 2763 2764 /* True if this class is non-layout-POD only because it was not an aggregate 2765 before C++14. If we run out of bits in lang_type, this could be replaced 2766 with a hash_set only filled in when abi_version_crosses (17). */ 2767 #define CLASSTYPE_NON_POD_AGGREGATE(NODE) \ 2768 (LANG_TYPE_CLASS_CHECK (NODE)->non_pod_aggregate) 2769 2770 /* Additional macros for inheritance information. */ 2772 2773 /* Nonzero means that this class is on a path leading to a new vtable. */ 2774 #define BINFO_VTABLE_PATH_MARKED(NODE) BINFO_FLAG_1 (NODE) 2775 2776 /* Nonzero means B (a BINFO) has its own vtable. Any copies will not 2777 have this flag set. */ 2778 #define BINFO_NEW_VTABLE_MARKED(B) (BINFO_FLAG_2 (B)) 2779 2780 /* Compare a BINFO_TYPE with another type for equality. For a binfo, 2781 this is functionally equivalent to using same_type_p, but 2782 measurably faster. At least one of the arguments must be a 2783 BINFO_TYPE. The other can be a BINFO_TYPE or a regular type. If 2784 BINFO_TYPE(T) ever stops being the main variant of the class the 2785 binfo is for, this macro must change. */ 2786 #define SAME_BINFO_TYPE_P(A, B) ((A) == (B)) 2787 2788 /* Any subobject that needs a new vtable must have a vptr and must not 2789 be a non-virtual primary base (since it would then use the vtable from a 2790 derived class and never become non-primary.) */ 2791 #define SET_BINFO_NEW_VTABLE_MARKED(B) \ 2792 (BINFO_NEW_VTABLE_MARKED (B) = 1, \ 2793 gcc_assert (!BINFO_PRIMARY_P (B) || BINFO_VIRTUAL_P (B)), \ 2794 gcc_assert (TYPE_VFIELD (BINFO_TYPE (B)))) 2795 2796 /* Nonzero if this binfo is for a dependent base - one that should not 2797 be searched. */ 2798 #define BINFO_DEPENDENT_BASE_P(NODE) BINFO_FLAG_3 (NODE) 2799 2800 /* Nonzero if this binfo has lost its primary base binfo (because that 2801 is a nearly-empty virtual base that has been taken by some other 2802 base in the complete hierarchy. */ 2803 #define BINFO_LOST_PRIMARY_P(NODE) BINFO_FLAG_4 (NODE) 2804 2805 /* Nonzero if this BINFO is a primary base class. */ 2806 #define BINFO_PRIMARY_P(NODE) BINFO_FLAG_5(NODE) 2807 2808 /* A vec<tree_pair_s> of the vcall indices associated with the class 2810 NODE. The PURPOSE of each element is a FUNCTION_DECL for a virtual 2811 function. The VALUE is the index into the virtual table where the 2812 vcall offset for that function is stored, when NODE is a virtual 2813 base. */ 2814 #define CLASSTYPE_VCALL_INDICES(NODE) \ 2815 (LANG_TYPE_CLASS_CHECK (NODE)->vcall_indices) 2816 2817 /* The various vtables for the class NODE. The primary vtable will be 2818 first, followed by the construction vtables and VTT, if any. */ 2819 #define CLASSTYPE_VTABLES(NODE) \ 2820 (LANG_TYPE_CLASS_CHECK (NODE)->vtables) 2821 2822 /* The std::type_info variable representing this class, or NULL if no 2823 such variable has been created. This field is only set for the 2824 TYPE_MAIN_VARIANT of the class. */ 2825 #define CLASSTYPE_TYPEINFO_VAR(NODE) \ 2826 (LANG_TYPE_CLASS_CHECK (NODE)->typeinfo_var) 2827 2828 /* Accessor macros for the BINFO_VIRTUALS list. */ 2829 2830 /* The number of bytes by which to adjust the `this' pointer when 2831 calling this virtual function. Subtract this value from the this 2832 pointer. Always non-NULL, might be constant zero though. */ 2833 #define BV_DELTA(NODE) (TREE_PURPOSE (NODE)) 2834 2835 /* If non-NULL, the vtable index at which to find the vcall offset 2836 when calling this virtual function. Add the value at that vtable 2837 index to the this pointer. */ 2838 #define BV_VCALL_INDEX(NODE) (TREE_TYPE (NODE)) 2839 2840 /* The function to call. */ 2841 #define BV_FN(NODE) (TREE_VALUE (NODE)) 2842 2843 /* Whether or not this entry is for a lost primary virtual base. */ 2844 #define BV_LOST_PRIMARY(NODE) (TREE_LANG_FLAG_0 (NODE)) 2845 2846 /* For FUNCTION_TYPE or METHOD_TYPE, a list of the exceptions that 2848 this type can raise. Each TREE_VALUE is a _TYPE. The TREE_VALUE 2849 will be NULL_TREE to indicate a throw specification of `()', or 2850 no exceptions allowed. For a noexcept specification, TREE_VALUE 2851 is NULL_TREE and TREE_PURPOSE is the constant-expression. For 2852 a deferred noexcept-specification, TREE_PURPOSE is a DEFERRED_NOEXCEPT 2853 (for templates) or an OVERLOAD list of functions (for implicitly 2854 declared functions). */ 2855 #define TYPE_RAISES_EXCEPTIONS(NODE) \ 2856 TYPE_LANG_SLOT_1 (FUNC_OR_METHOD_CHECK (NODE)) 2857 2858 /* For FUNCTION_TYPE or METHOD_TYPE, return 1 iff it is declared `throw()' 2859 or noexcept(true). */ 2860 #define TYPE_NOTHROW_P(NODE) nothrow_spec_p (TYPE_RAISES_EXCEPTIONS (NODE)) 2861 2862 /* For FUNCTION_TYPE or METHOD_TYPE, true if NODE is noexcept. This is the 2863 case for things declared noexcept(true) and, with -fnothrow-opt, for 2864 throw() functions. */ 2865 #define TYPE_NOEXCEPT_P(NODE) type_noexcept_p (NODE) 2866 2867 /* The binding level associated with the namespace. */ 2868 #define NAMESPACE_LEVEL(NODE) \ 2869 (LANG_DECL_NS_CHECK (NODE)->level) 2870 2871 /* Discriminator values for lang_decl. */ 2873 2874 enum lang_decl_selector 2875 { 2876 lds_min, 2877 lds_fn, 2878 lds_ns, 2879 lds_parm, 2880 lds_decomp 2881 }; 2882 2883 /* Flags shared by all forms of DECL_LANG_SPECIFIC. 2884 2885 Some of the flags live here only to make lang_decl_min/fn smaller. Do 2886 not make this struct larger than 32 bits. */ 2887 2888 struct GTY(()) lang_decl_base { 2889 ENUM_BITFIELD(lang_decl_selector) selector : 3; 2890 ENUM_BITFIELD(languages) language : 1; 2891 unsigned use_template : 2; 2892 unsigned not_really_extern : 1; /* var or fn */ 2893 unsigned initialized_in_class : 1; /* var or fn */ 2894 2895 unsigned threadprivate_or_deleted_p : 1; /* var or fn */ 2896 /* anticipated_p is no longer used for anticipated_decls (fn, type 2897 or template). It is used as DECL_OMP_PRIVATIZED_MEMBER in 2898 var. */ 2899 unsigned anticipated_p : 1; 2900 unsigned friend_or_tls : 1; /* var, fn, type or template */ 2901 unsigned unknown_bound_p : 1; /* var */ 2902 unsigned odr_used : 1; /* var or fn */ 2903 unsigned concept_p : 1; /* applies to vars and functions */ 2904 unsigned var_declared_inline_p : 1; /* var */ 2905 unsigned dependent_init_p : 1; /* var */ 2906 2907 /* The following four apply to VAR, FUNCTION, TYPE, CONCEPT, & NAMESPACE 2908 decls. */ 2909 unsigned module_purview_p : 1; /* in named-module purview */ 2910 unsigned module_attach_p : 1; /* attached to named module */ 2911 unsigned module_import_p : 1; /* from an import */ 2912 unsigned module_entity_p : 1; /* is in the entitity ary & hash */ 2913 2914 unsigned module_keyed_decls_p : 1; /* has keys, applies to all decls */ 2915 2916 /* 11 spare bits. */ 2917 }; 2918 2919 /* True for DECL codes which have template info and access. */ 2920 #define LANG_DECL_HAS_MIN(NODE) \ 2921 (VAR_OR_FUNCTION_DECL_P (NODE) \ 2922 || TREE_CODE (NODE) == FIELD_DECL \ 2923 || TREE_CODE (NODE) == CONST_DECL \ 2924 || TREE_CODE (NODE) == TYPE_DECL \ 2925 || TREE_CODE (NODE) == TEMPLATE_DECL \ 2926 || TREE_CODE (NODE) == USING_DECL \ 2927 || TREE_CODE (NODE) == CONCEPT_DECL) 2928 2929 /* DECL_LANG_SPECIFIC for the above codes. */ 2930 2931 struct GTY(()) lang_decl_min { 2932 struct lang_decl_base base; /* 32-bits. */ 2933 2934 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is 2935 THUNK_ALIAS. 2936 In a FUNCTION_DECL for which DECL_THUNK_P does not hold, 2937 VAR_DECL, TYPE_DECL, or TEMPLATE_DECL, this is 2938 DECL_TEMPLATE_INFO. */ 2939 tree template_info; 2940 2941 /* In a DECL_THUNK_P FUNCTION_DECL, this is THUNK_VIRTUAL_OFFSET. 2942 In a lambda-capture proxy VAR_DECL, this is DECL_CAPTURED_VARIABLE. 2943 In a function-scope TREE_STATIC VAR_DECL or IMPLICIT_TYPEDEF_P TYPE_DECL, 2944 this is DECL_DISCRIMINATOR. 2945 In a DECL_LOCAL_DECL_P decl, this is the namespace decl it aliases. 2946 Otherwise, in a class-scope DECL, this is DECL_ACCESS. */ 2947 tree access; 2948 }; 2949 2950 /* Additional DECL_LANG_SPECIFIC information for functions. */ 2951 2952 struct GTY(()) lang_decl_fn { 2953 struct lang_decl_min min; 2954 2955 /* In a overloaded operator, this is the compressed operator code. */ 2956 unsigned ovl_op_code : 6; 2957 unsigned global_ctor_p : 1; 2958 unsigned global_dtor_p : 1; 2959 2960 unsigned static_function : 1; 2961 unsigned pure_virtual : 1; 2962 unsigned defaulted_p : 1; 2963 unsigned has_in_charge_parm_p : 1; 2964 unsigned has_vtt_parm_p : 1; 2965 unsigned pending_inline_p : 1; 2966 unsigned nonconverting : 1; 2967 unsigned thunk_p : 1; 2968 2969 unsigned this_thunk_p : 1; 2970 unsigned omp_declare_reduction_p : 1; 2971 unsigned has_dependent_explicit_spec_p : 1; 2972 unsigned immediate_fn_p : 1; 2973 unsigned maybe_deleted : 1; 2974 unsigned coroutine_p : 1; 2975 unsigned implicit_constexpr : 1; 2976 unsigned escalated_p : 1; 2977 unsigned xobj_func : 1; 2978 2979 unsigned spare : 7; 2980 2981 /* 32-bits padding on 64-bit host. */ 2982 2983 /* For a non-thunk function decl, this is a tree list of 2984 friendly classes. For a thunk function decl, it is the 2985 thunked to function decl. */ 2986 tree befriending_classes; 2987 2988 /* For a virtual FUNCTION_DECL for which 2989 DECL_THIS_THUNK_P does not hold, this is DECL_THUNKS. Both 2990 this pointer and result pointer adjusting thunks are 2991 chained here. This pointer thunks to return pointer thunks 2992 will be chained on the return pointer thunk. 2993 For a DECL_CONSTRUCTOR_P or deduction_guide_p FUNCTION_DECL, 2994 this is the base from whence we inherit. 2995 Otherwise, it is the class in which a (namespace-scope) friend 2996 is defined (if any). */ 2997 tree context; 2998 2999 union lang_decl_u5 3000 { 3001 /* In a non-thunk FUNCTION_DECL, this is DECL_CLONED_FUNCTION. */ 3002 tree GTY ((tag ("0"))) cloned_function; 3003 3004 /* In a FUNCTION_DECL for which THUNK_P holds this is the 3005 THUNK_FIXED_OFFSET. */ 3006 HOST_WIDE_INT GTY ((tag ("1"))) fixed_offset; 3007 } GTY ((desc ("%1.thunk_p"))) u5; 3008 3009 union lang_decl_u3 3010 { 3011 struct cp_token_cache * GTY ((tag ("1"))) pending_inline_info; 3012 tree GTY ((tag ("0"))) saved_auto_return_type; 3013 } GTY ((desc ("%1.pending_inline_p"))) u; 3014 3015 }; 3016 3017 /* DECL_LANG_SPECIFIC for namespaces. */ 3018 3019 struct GTY(()) lang_decl_ns { 3020 struct lang_decl_base base; /* 32 bits. */ 3021 cp_binding_level *level; 3022 3023 /* Inline children. Needs to be va_gc, because of PCH. */ 3024 vec<tree, va_gc> *inlinees; 3025 3026 /* Hash table of bound decls. It'd be nice to have this inline, but 3027 as the hash_map has a dtor, we can't then put this struct into a 3028 union (until moving to c++11). */ 3029 hash_table<named_decl_hash> *bindings; 3030 }; 3031 3032 /* DECL_LANG_SPECIFIC for parameters. */ 3033 3034 struct GTY(()) lang_decl_parm { 3035 struct lang_decl_base base; /* 32 bits. */ 3036 int level; 3037 int index; 3038 }; 3039 3040 /* Additional DECL_LANG_SPECIFIC information for structured bindings. */ 3041 3042 struct GTY(()) lang_decl_decomp { 3043 struct lang_decl_min min; 3044 /* The artificial underlying "e" variable of the structured binding 3045 variable. */ 3046 tree base; 3047 }; 3048 3049 /* DECL_LANG_SPECIFIC for all types. It would be nice to just make this a 3050 union rather than a struct containing a union as its only field, but 3051 tree.h declares it as a struct. */ 3052 3053 struct GTY(()) lang_decl { 3054 union GTY((desc ("%h.base.selector"))) lang_decl_u { 3055 /* Nothing of only the base type exists. */ 3056 struct lang_decl_base GTY ((default)) base; 3057 struct lang_decl_min GTY((tag ("lds_min"))) min; 3058 struct lang_decl_fn GTY ((tag ("lds_fn"))) fn; 3059 struct lang_decl_ns GTY((tag ("lds_ns"))) ns; 3060 struct lang_decl_parm GTY((tag ("lds_parm"))) parm; 3061 struct lang_decl_decomp GTY((tag ("lds_decomp"))) decomp; 3062 } u; 3063 }; 3064 3065 /* Looks through a template (if present) to find what it declares. */ 3066 #define STRIP_TEMPLATE(NODE) \ 3067 (TREE_CODE (NODE) == TEMPLATE_DECL ? DECL_TEMPLATE_RESULT (NODE) : NODE) 3068 3069 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007) 3070 3071 #define LANG_DECL_MIN_CHECK(NODE) __extension__ \ 3072 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 3073 if (!LANG_DECL_HAS_MIN (NODE)) \ 3074 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 3075 <->u.min; }) 3076 3077 /* We want to be able to check DECL_CONSTRUCTOR_P and such on a function 3078 template, not just on a FUNCTION_DECL. So when looking for things in 3079 lang_decl_fn, look down through a TEMPLATE_DECL into its result. */ 3080 #define LANG_DECL_FN_CHECK(NODE) __extension__ \ 3081 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE)); \ 3082 if (!DECL_DECLARES_FUNCTION_P (NODE) \ 3083 || lt->u.base.selector != lds_fn) \ 3084 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 3085 <->u.fn; }) 3086 3087 #define LANG_DECL_NS_CHECK(NODE) __extension__ \ 3088 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 3089 if (TREE_CODE (NODE) != NAMESPACE_DECL \ 3090 || lt->u.base.selector != lds_ns) \ 3091 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 3092 <->u.ns; }) 3093 3094 #define LANG_DECL_PARM_CHECK(NODE) __extension__ \ 3095 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 3096 if (TREE_CODE (NODE) != PARM_DECL \ 3097 || lt->u.base.selector != lds_parm) \ 3098 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 3099 <->u.parm; }) 3100 3101 #define LANG_DECL_DECOMP_CHECK(NODE) __extension__ \ 3102 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 3103 if (!VAR_P (NODE) \ 3104 || lt->u.base.selector != lds_decomp) \ 3105 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 3106 <->u.decomp; }) 3107 3108 #else 3109 3110 #define LANG_DECL_MIN_CHECK(NODE) \ 3111 (&DECL_LANG_SPECIFIC (NODE)->u.min) 3112 3113 #define LANG_DECL_FN_CHECK(NODE) \ 3114 (&DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE))->u.fn) 3115 3116 #define LANG_DECL_NS_CHECK(NODE) \ 3117 (&DECL_LANG_SPECIFIC (NODE)->u.ns) 3118 3119 #define LANG_DECL_PARM_CHECK(NODE) \ 3120 (&DECL_LANG_SPECIFIC (NODE)->u.parm) 3121 3122 #define LANG_DECL_DECOMP_CHECK(NODE) \ 3123 (&DECL_LANG_SPECIFIC (NODE)->u.decomp) 3124 3125 #endif /* ENABLE_TREE_CHECKING */ 3126 3127 /* For a FUNCTION_DECL or a VAR_DECL, the language linkage for the 3128 declaration. Some entities (like a member function in a local 3129 class, or a local variable) do not have linkage at all, and this 3130 macro should not be used in those cases. 3131 3132 Implementation note: A FUNCTION_DECL without DECL_LANG_SPECIFIC was 3133 created by language-independent code, and has C linkage. Most 3134 VAR_DECLs have C++ linkage, and do not have DECL_LANG_SPECIFIC, but 3135 we do create DECL_LANG_SPECIFIC for variables with non-C++ linkage. */ 3136 #define DECL_LANGUAGE(NODE) \ 3137 (DECL_LANG_SPECIFIC (NODE) \ 3138 ? DECL_LANG_SPECIFIC (NODE)->u.base.language \ 3139 : (TREE_CODE (NODE) == FUNCTION_DECL \ 3140 ? lang_c : lang_cplusplus)) 3141 3142 /* Set the language linkage for NODE to LANGUAGE. */ 3143 #define SET_DECL_LANGUAGE(NODE, LANGUAGE) \ 3144 (DECL_LANG_SPECIFIC (NODE)->u.base.language = (LANGUAGE)) 3145 3146 /* For FUNCTION_DECLs and TEMPLATE_DECLs: nonzero means that this function 3147 is a constructor. */ 3148 #define DECL_CONSTRUCTOR_P(NODE) \ 3149 DECL_CXX_CONSTRUCTOR_P (STRIP_TEMPLATE (NODE)) 3150 3151 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a complete 3152 object. */ 3153 #define DECL_COMPLETE_CONSTRUCTOR_P(NODE) \ 3154 (DECL_NAME (NODE) == complete_ctor_identifier) 3155 3156 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a base 3157 object. */ 3158 #define DECL_BASE_CONSTRUCTOR_P(NODE) \ 3159 (DECL_NAME (NODE) == base_ctor_identifier) 3160 3161 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor, but not either the 3162 specialized in-charge constructor or the specialized not-in-charge 3163 constructor. */ 3164 #define DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P(NODE) \ 3165 (DECL_NAME (NODE) == ctor_identifier) 3166 3167 /* Nonzero if NODE (a FUNCTION_DECL) is a copy constructor. */ 3168 #define DECL_COPY_CONSTRUCTOR_P(NODE) \ 3169 (DECL_CONSTRUCTOR_P (NODE) && copy_fn_p (NODE) > 0) 3170 3171 /* Nonzero if NODE (a FUNCTION_DECL) is a move constructor. */ 3172 #define DECL_MOVE_CONSTRUCTOR_P(NODE) \ 3173 (DECL_CONSTRUCTOR_P (NODE) && move_fn_p (NODE)) 3174 3175 /* Nonzero if NODE (a FUNCTION_DECL or TEMPLATE_DECL) 3176 is a destructor. */ 3177 #define DECL_DESTRUCTOR_P(NODE) \ 3178 DECL_CXX_DESTRUCTOR_P (STRIP_TEMPLATE (NODE)) 3179 3180 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor, but not the 3181 specialized in-charge constructor, in-charge deleting constructor, 3182 or the base destructor. */ 3183 #define DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P(NODE) \ 3184 (DECL_NAME (NODE) == dtor_identifier) 3185 3186 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete 3187 object. */ 3188 #define DECL_COMPLETE_DESTRUCTOR_P(NODE) \ 3189 (DECL_NAME (NODE) == complete_dtor_identifier) 3190 3191 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a base 3192 object. */ 3193 #define DECL_BASE_DESTRUCTOR_P(NODE) \ 3194 (DECL_NAME (NODE) == base_dtor_identifier) 3195 3196 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete 3197 object that deletes the object after it has been destroyed. */ 3198 #define DECL_DELETING_DESTRUCTOR_P(NODE) \ 3199 (DECL_NAME (NODE) == deleting_dtor_identifier) 3200 3201 /* Nonzero if either DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P or 3202 DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P is true of NODE. */ 3203 #define DECL_MAYBE_IN_CHARGE_CDTOR_P(NODE) \ 3204 (DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (NODE) \ 3205 || DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (NODE)) 3206 3207 /* Nonzero if NODE (a _DECL) is a cloned constructor or 3208 destructor. */ 3209 #define DECL_CLONED_FUNCTION_P(NODE) \ 3210 (DECL_NAME (NODE) \ 3211 && IDENTIFIER_CDTOR_P (DECL_NAME (NODE)) \ 3212 && !DECL_MAYBE_IN_CHARGE_CDTOR_P (NODE)) 3213 3214 /* If DECL_CLONED_FUNCTION_P holds, this is the function that was 3215 cloned. */ 3216 #define DECL_CLONED_FUNCTION(NODE) \ 3217 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (NODE))->u.fn.u5.cloned_function) 3218 3219 /* Perform an action for each clone of FN, if FN is a function with 3220 clones. This macro should be used like: 3221 3222 FOR_EACH_CLONE (clone, fn) 3223 { ... } 3224 3225 */ 3226 #define FOR_EACH_CLONE(CLONE, FN) \ 3227 if (!(TREE_CODE (FN) == FUNCTION_DECL \ 3228 && DECL_MAYBE_IN_CHARGE_CDTOR_P (FN))) \ 3229 ; \ 3230 else \ 3231 for (CLONE = DECL_CHAIN (FN); \ 3232 CLONE && DECL_CLONED_FUNCTION_P (CLONE); \ 3233 CLONE = DECL_CHAIN (CLONE)) 3234 3235 /* Nonzero if NODE has DECL_DISCRIMINATOR and not DECL_ACCESS. */ 3236 #define DECL_DISCRIMINATOR_P(NODE) \ 3237 (((VAR_P (NODE) && TREE_STATIC (NODE)) \ 3238 || DECL_IMPLICIT_TYPEDEF_P (NODE)) \ 3239 && DECL_FUNCTION_SCOPE_P (NODE)) 3240 3241 /* Discriminator for name mangling. */ 3242 #define DECL_DISCRIMINATOR(NODE) (LANG_DECL_MIN_CHECK (NODE)->access) 3243 3244 /* The index of a user-declared parameter in its function, starting at 1. 3245 All artificial parameters will have index 0. */ 3246 #define DECL_PARM_INDEX(NODE) \ 3247 (LANG_DECL_PARM_CHECK (NODE)->index) 3248 3249 /* The level of a user-declared parameter in its function, starting at 1. 3250 A parameter of the function will have level 1; a parameter of the first 3251 nested function declarator (i.e. t in void f (void (*p)(T t))) will have 3252 level 2. */ 3253 #define DECL_PARM_LEVEL(NODE) \ 3254 (LANG_DECL_PARM_CHECK (NODE)->level) 3255 3256 /* Nonzero if the VTT parm has been added to NODE. */ 3257 #define DECL_HAS_VTT_PARM_P(NODE) \ 3258 (LANG_DECL_FN_CHECK (NODE)->has_vtt_parm_p) 3259 3260 /* Nonzero if NODE is a user-defined conversion operator. */ 3261 #define DECL_CONV_FN_P(NODE) IDENTIFIER_CONV_OP_P (DECL_NAME (NODE)) 3262 3263 /* The type to which conversion operator FN converts to. */ 3264 #define DECL_CONV_FN_TYPE(FN) \ 3265 TREE_TYPE ((gcc_checking_assert (DECL_CONV_FN_P (FN)), DECL_NAME (FN))) 3266 3267 /* Nonzero if NODE, a templated variable, was declared as an 3268 array of unknown bound. */ 3269 #define VAR_HAD_UNKNOWN_BOUND(NODE) \ 3270 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE)) \ 3271 ? DECL_LANG_SPECIFIC (NODE)->u.base.unknown_bound_p \ 3272 : false) 3273 #define SET_VAR_HAD_UNKNOWN_BOUND(NODE) \ 3274 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))->u.base.unknown_bound_p = true) 3275 3276 /* True iff decl NODE is for an overloaded operator. */ 3277 #define DECL_OVERLOADED_OPERATOR_P(NODE) \ 3278 IDENTIFIER_ANY_OP_P (DECL_NAME (NODE)) 3279 3280 /* Nonzero if NODE is an assignment operator (including += and such). */ 3281 #define DECL_ASSIGNMENT_OPERATOR_P(NODE) \ 3282 IDENTIFIER_ASSIGN_OP_P (DECL_NAME (NODE)) 3283 3284 /* NODE is a function_decl for an overloaded operator. Return its 3285 compressed (raw) operator code. Note that this is not a TREE_CODE. */ 3286 #define DECL_OVERLOADED_OPERATOR_CODE_RAW(NODE) \ 3287 (LANG_DECL_FN_CHECK (NODE)->ovl_op_code) 3288 3289 /* DECL is an overloaded operator. Test whether it is for TREE_CODE 3290 (a literal constant). */ 3291 #define DECL_OVERLOADED_OPERATOR_IS(DECL, CODE) \ 3292 (DECL_OVERLOADED_OPERATOR_CODE_RAW (DECL) == OVL_OP_##CODE) 3293 3294 /* For FUNCTION_DECLs: nonzero means that this function is a 3295 constructor or a destructor with an extra in-charge parameter to 3296 control whether or not virtual bases are constructed. */ 3297 #define DECL_HAS_IN_CHARGE_PARM_P(NODE) \ 3298 (LANG_DECL_FN_CHECK (NODE)->has_in_charge_parm_p) 3299 3300 /* Nonzero if DECL is a declaration of __builtin_constant_p. */ 3301 #define DECL_IS_BUILTIN_CONSTANT_P(NODE) \ 3302 (TREE_CODE (NODE) == FUNCTION_DECL \ 3303 && DECL_BUILT_IN_CLASS (NODE) == BUILT_IN_NORMAL \ 3304 && DECL_FUNCTION_CODE (NODE) == BUILT_IN_CONSTANT_P) 3305 3306 /* Nonzero for _DECL means that this decl appears in (or will appear 3307 in) as a member in a RECORD_TYPE or UNION_TYPE node. It is also for 3308 detecting circularity in case members are multiply defined. In the 3309 case of a VAR_DECL, it means that no definition has been seen, even 3310 if an initializer has been. */ 3311 #define DECL_IN_AGGR_P(NODE) (DECL_LANG_FLAG_3 (NODE)) 3312 3313 /* Nonzero for a VAR_DECL means that the variable's initialization (if 3314 any) has been processed. (In general, DECL_INITIALIZED_P is 3315 !DECL_EXTERNAL, but static data members may be initialized even if 3316 not defined.) */ 3317 #define DECL_INITIALIZED_P(NODE) \ 3318 (TREE_LANG_FLAG_1 (VAR_DECL_CHECK (NODE))) 3319 3320 /* Nonzero for a VAR_DECL iff an explicit initializer was provided 3321 or a non-trivial constructor is called. */ 3322 #define DECL_NONTRIVIALLY_INITIALIZED_P(NODE) \ 3323 (TREE_LANG_FLAG_6 (VAR_DECL_CHECK (NODE))) 3324 3325 /* Nonzero for a VAR_DECL that was initialized with a 3326 constant-expression. */ 3327 #define DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P(NODE) \ 3328 (TREE_LANG_FLAG_2 (VAR_DECL_CHECK (NODE))) 3329 3330 /* Nonzero if the DECL was initialized in the class definition itself, 3331 rather than outside the class. This is used for both static member 3332 VAR_DECLS, and FUNCTION_DECLS that are defined in the class. */ 3333 #define DECL_INITIALIZED_IN_CLASS_P(DECL) \ 3334 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \ 3335 ->u.base.initialized_in_class) 3336 3337 /* Nonzero if the DECL is used in the sense of 3.2 [basic.def.odr]. 3338 Only available for decls with DECL_LANG_SPECIFIC. */ 3339 #define DECL_ODR_USED(DECL) \ 3340 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \ 3341 ->u.base.odr_used) 3342 3343 /* Nonzero for FUNCTION_DECL means that this is a friend that is 3344 either not pushed into a namespace/looked up in a class (because it 3345 is a dependent type, in an uninstantiated template), or it has 3346 /only/ been subject to hidden friend injection from one or more 3347 befriending classes. Once another decl matches, the flag is 3348 cleared. There are requirements on its default parms. */ 3349 #define DECL_UNIQUE_FRIEND_P(NODE) \ 3350 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (NODE)) \ 3351 ->u.base.friend_or_tls) 3352 3353 /* True of a TEMPLATE_DECL that is a template class friend. Such 3354 decls are not pushed until instantiated (as they may depend on 3355 parameters of the befriending class). DECL_CHAIN is the 3356 befriending class. */ 3357 #define DECL_UNINSTANTIATED_TEMPLATE_FRIEND_P(NODE) \ 3358 (DECL_LANG_FLAG_4 (TEMPLATE_DECL_CHECK (NODE))) 3359 3360 /* Nonzero if the thread-local variable was declared with __thread as 3361 opposed to thread_local. */ 3362 #define DECL_GNU_TLS_P(NODE) \ 3363 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE)) \ 3364 && DECL_LANG_SPECIFIC (NODE)->u.base.friend_or_tls) 3365 #define SET_DECL_GNU_TLS_P(NODE) \ 3366 (retrofit_lang_decl (VAR_DECL_CHECK (NODE)), \ 3367 DECL_LANG_SPECIFIC (NODE)->u.base.friend_or_tls = true) 3368 3369 /* A TREE_LIST of the types which have befriended this FUNCTION_DECL. */ 3370 #define DECL_BEFRIENDING_CLASSES(NODE) \ 3371 (LANG_DECL_FN_CHECK (NODE)->befriending_classes) 3372 3373 /* Nonzero for FUNCTION_DECL means that this decl is a static 3374 member function. */ 3375 #define DECL_STATIC_FUNCTION_P(NODE) \ 3376 (LANG_DECL_FN_CHECK (NODE)->static_function) 3377 3378 /* Nonzero for FUNCTION_DECL means that this decl is a non-static member 3379 function. C++23 explicit object member functions are also considered 3380 non-static, but most former uses of this macro meant implicit object member 3381 function. Instead of this macro, use DECL_IOBJ_MEMBER_FUNCTION_P or 3382 DECL_OBJECT_MEMBER_FUNCTION_P. */ 3383 #define DECL_NONSTATIC_MEMBER_FUNCTION_P(NODE) did_you_mean_object_or_iobj 3384 3385 /* Nonzero for FUNCTION_DECL means that this decl is an implicit object 3386 member function. */ 3387 #define DECL_IOBJ_MEMBER_FUNCTION_P(NODE) \ 3388 (TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE) 3389 3390 /* Simple member access, only valid for FUNCTION_DECL nodes. */ 3391 #define DECL_FUNCTION_XOBJ_FLAG(NODE) \ 3392 (LANG_DECL_FN_CHECK (NODE)->xobj_func) 3393 3394 /* Nonzero if NODE is an xobj member function, 3395 safely evaluates to false for all non FUNCTION_DECL nodes. */ 3396 #define DECL_XOBJ_MEMBER_FUNCTION_P(NODE) \ 3397 (TREE_CODE (STRIP_TEMPLATE (NODE)) == FUNCTION_DECL \ 3398 && DECL_FUNCTION_XOBJ_FLAG (NODE) == 1) 3399 3400 /* Nonzero if NODE is a member function with an object argument, 3401 in other words, a non-static member function. */ 3402 #define DECL_OBJECT_MEMBER_FUNCTION_P(NODE) \ 3403 (DECL_IOBJ_MEMBER_FUNCTION_P (NODE) || DECL_XOBJ_MEMBER_FUNCTION_P (NODE)) 3404 3405 /* Nonzero for FUNCTION_DECL means that this decl is a member function 3406 (static or non-static). */ 3407 #define DECL_FUNCTION_MEMBER_P(NODE) \ 3408 (DECL_OBJECT_MEMBER_FUNCTION_P (NODE) || DECL_STATIC_FUNCTION_P (NODE)) \ 3409 3410 /* Nonzero for FUNCTION_DECL means that this member function 3411 has `this' as const X *const. */ 3412 #define DECL_CONST_MEMFUNC_P(NODE) \ 3413 (DECL_IOBJ_MEMBER_FUNCTION_P (NODE) \ 3414 && CP_TYPE_CONST_P (TREE_TYPE (TREE_VALUE \ 3415 (TYPE_ARG_TYPES (TREE_TYPE (NODE)))))) 3416 3417 /* Nonzero for FUNCTION_DECL means that this member function 3418 has `this' as volatile X *const. */ 3419 #define DECL_VOLATILE_MEMFUNC_P(NODE) \ 3420 (DECL_IOBJ_MEMBER_FUNCTION_P (NODE) \ 3421 && CP_TYPE_VOLATILE_P (TREE_TYPE (TREE_VALUE \ 3422 (TYPE_ARG_TYPES (TREE_TYPE (NODE)))))) 3423 3424 /* Nonzero for a DECL means that this member is a non-static member. */ 3425 #define DECL_NONSTATIC_MEMBER_P(NODE) \ 3426 (DECL_OBJECT_MEMBER_FUNCTION_P (NODE) \ 3427 || TREE_CODE (NODE) == FIELD_DECL) 3428 3429 /* Nonzero for a FIELD_DECL means that this member object type 3430 is mutable. */ 3431 #define DECL_MUTABLE_P(NODE) (DECL_LANG_FLAG_0 (FIELD_DECL_CHECK (NODE))) 3432 3433 /* Nonzero for _DECL means that this constructor or conversion function is 3434 non-converting. */ 3435 #define DECL_NONCONVERTING_P(NODE) \ 3436 (LANG_DECL_FN_CHECK (NODE)->nonconverting) 3437 3438 /* Nonzero for FUNCTION_DECL means that this member function is a pure 3439 virtual function. */ 3440 #define DECL_PURE_VIRTUAL_P(NODE) \ 3441 (LANG_DECL_FN_CHECK (NODE)->pure_virtual) 3442 3443 /* Nonzero for FUNCTION_DECL means that this member function (either 3444 a constructor or a conversion function) has an explicit specifier 3445 with a value-dependent expression. */ 3446 #define DECL_HAS_DEPENDENT_EXPLICIT_SPEC_P(NODE) \ 3447 (LANG_DECL_FN_CHECK (NODE)->has_dependent_explicit_spec_p) 3448 3449 /* Nonzero for a defaulted FUNCTION_DECL for which we haven't decided yet if 3450 it's deleted; we will decide in synthesize_method. */ 3451 #define DECL_MAYBE_DELETED(NODE) \ 3452 (LANG_DECL_FN_CHECK (NODE)->maybe_deleted) 3453 3454 /* Nonzero for FUNCTION_DECL means that this function's body has been 3455 checked for immediate-escalating expressions and maybe promoted. It 3456 does *not* mean the function is consteval. It must not be set in 3457 a function that was marked consteval by the user, so that we can 3458 distinguish between explicitly consteval functions and promoted consteval 3459 functions. */ 3460 #define DECL_ESCALATION_CHECKED_P(NODE) (LANG_DECL_FN_CHECK (NODE)->escalated_p) 3461 3462 /* True (in a FUNCTION_DECL) if NODE is a virtual function that is an 3463 invalid overrider for a function from a base class. Once we have 3464 complained about an invalid overrider we avoid complaining about it 3465 again. */ 3466 #define DECL_INVALID_OVERRIDER_P(NODE) \ 3467 (DECL_LANG_FLAG_4 (NODE)) 3468 3469 /* True (in a FUNCTION_DECL) if NODE is a function declared with 3470 an override virt-specifier */ 3471 #define DECL_OVERRIDE_P(NODE) (TREE_LANG_FLAG_0 (NODE)) 3472 3473 /* The thunks associated with NODE, a FUNCTION_DECL. */ 3474 #define DECL_THUNKS(NODE) \ 3475 (DECL_VIRTUAL_P (NODE) ? LANG_DECL_FN_CHECK (NODE)->context : NULL_TREE) 3476 3477 /* Set DECL_THUNKS. */ 3478 #define SET_DECL_THUNKS(NODE,THUNKS) \ 3479 (LANG_DECL_FN_CHECK (NODE)->context = (THUNKS)) 3480 3481 /* If NODE, a FUNCTION_DECL, is a C++11 inheriting constructor, then this 3482 is the constructor it inherits from. */ 3483 #define DECL_INHERITED_CTOR(NODE) \ 3484 (DECL_DECLARES_FUNCTION_P (NODE) && DECL_CONSTRUCTOR_P (NODE) \ 3485 ? LANG_DECL_FN_CHECK (NODE)->context : NULL_TREE) 3486 3487 /* And this is the base that constructor comes from. */ 3488 #define DECL_INHERITED_CTOR_BASE(NODE) \ 3489 (DECL_INHERITED_CTOR (NODE) \ 3490 ? DECL_CONTEXT (flag_new_inheriting_ctors \ 3491 ? strip_inheriting_ctors (NODE) \ 3492 : DECL_INHERITED_CTOR (NODE)) \ 3493 : NULL_TREE) 3494 3495 /* Set the inherited base. */ 3496 #define SET_DECL_INHERITED_CTOR(NODE,INH) \ 3497 (LANG_DECL_FN_CHECK (NODE)->context = (INH)) 3498 3499 /* Nonzero if NODE is a thunk, rather than an ordinary function. */ 3500 #define DECL_THUNK_P(NODE) \ 3501 (TREE_CODE (NODE) == FUNCTION_DECL \ 3502 && DECL_LANG_SPECIFIC (NODE) \ 3503 && LANG_DECL_FN_CHECK (NODE)->thunk_p) 3504 3505 /* Set DECL_THUNK_P for node. */ 3506 #define SET_DECL_THUNK_P(NODE, THIS_ADJUSTING) \ 3507 (LANG_DECL_FN_CHECK (NODE)->thunk_p = 1, \ 3508 LANG_DECL_FN_CHECK (NODE)->this_thunk_p = (THIS_ADJUSTING)) 3509 3510 /* Nonzero if NODE is a this pointer adjusting thunk. */ 3511 #define DECL_THIS_THUNK_P(NODE) \ 3512 (DECL_THUNK_P (NODE) && LANG_DECL_FN_CHECK (NODE)->this_thunk_p) 3513 3514 /* Nonzero if NODE is a result pointer adjusting thunk. */ 3515 #define DECL_RESULT_THUNK_P(NODE) \ 3516 (DECL_THUNK_P (NODE) && !LANG_DECL_FN_CHECK (NODE)->this_thunk_p) 3517 3518 /* Nonzero if NODE is a FUNCTION_DECL, but not a thunk. */ 3519 #define DECL_NON_THUNK_FUNCTION_P(NODE) \ 3520 (TREE_CODE (NODE) == FUNCTION_DECL && !DECL_THUNK_P (NODE)) 3521 3522 /* Nonzero if NODE is `extern "C"'. */ 3523 #define DECL_EXTERN_C_P(NODE) \ 3524 (DECL_LANGUAGE (NODE) == lang_c) 3525 3526 /* Nonzero if NODE is an `extern "C"' function. */ 3527 #define DECL_EXTERN_C_FUNCTION_P(NODE) \ 3528 (DECL_NON_THUNK_FUNCTION_P (NODE) && DECL_EXTERN_C_P (NODE)) 3529 3530 /* Non-zero if this variable is declared `constinit' specifier. */ 3531 #define DECL_DECLARED_CONSTINIT_P(NODE) \ 3532 (DECL_LANG_FLAG_7 (VAR_DECL_CHECK (NODE))) 3533 3534 /* True if DECL is declared 'constexpr'. */ 3535 #define DECL_DECLARED_CONSTEXPR_P(DECL) \ 3536 DECL_LANG_FLAG_8 (VAR_OR_FUNCTION_DECL_CHECK (STRIP_TEMPLATE (DECL))) 3537 3538 /* True if FNDECL is an immediate function. */ 3539 #define DECL_IMMEDIATE_FUNCTION_P(NODE) \ 3540 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (STRIP_TEMPLATE (NODE))) \ 3541 ? LANG_DECL_FN_CHECK (NODE)->immediate_fn_p \ 3542 : false) 3543 #define SET_DECL_IMMEDIATE_FUNCTION_P(NODE) \ 3544 (retrofit_lang_decl (FUNCTION_DECL_CHECK (NODE)), \ 3545 LANG_DECL_FN_CHECK (NODE)->immediate_fn_p = true) 3546 3547 // True if NODE was declared as 'concept'. The flag implies that the 3548 // declaration is constexpr, that the declaration cannot be specialized or 3549 // refined, and that the result type must be convertible to bool. 3550 #define DECL_DECLARED_CONCEPT_P(NODE) \ 3551 (DECL_LANG_SPECIFIC (NODE)->u.base.concept_p) 3552 3553 /* Nonzero if this DECL is the __PRETTY_FUNCTION__ variable in a 3554 template function. */ 3555 #define DECL_PRETTY_FUNCTION_P(NODE) \ 3556 (DECL_NAME (NODE) \ 3557 && id_equal (DECL_NAME (NODE), "__PRETTY_FUNCTION__")) 3558 3559 /* For a DECL, true if it is __func__ or similar. */ 3560 #define DECL_FNAME_P(NODE) \ 3561 (VAR_P (NODE) && DECL_NAME (NODE) && DECL_ARTIFICIAL (NODE) \ 3562 && DECL_HAS_VALUE_EXPR_P (NODE) \ 3563 && (id_equal (DECL_NAME (NODE), "__PRETTY_FUNCTION__") \ 3564 || id_equal (DECL_NAME (NODE), "__FUNCTION__") \ 3565 || id_equal (DECL_NAME (NODE), "__func__"))) 3566 3567 /* Nonzero if the variable was declared to be thread-local. 3568 We need a special C++ version of this test because the middle-end 3569 DECL_THREAD_LOCAL_P uses the symtab, so we can't use it for 3570 templates. */ 3571 #define CP_DECL_THREAD_LOCAL_P(NODE) \ 3572 (TREE_LANG_FLAG_0 (VAR_DECL_CHECK (NODE))) 3573 3574 /* The _TYPE context in which this _DECL appears. This field holds the 3575 class where a virtual function instance is actually defined. */ 3576 #define DECL_CLASS_CONTEXT(NODE) \ 3577 (DECL_CLASS_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : NULL_TREE) 3578 3579 /* For a non-member friend function, the class (if any) in which this 3580 friend was defined. For example, given: 3581 3582 struct S { friend void f () { ... } }; 3583 3584 the DECL_FRIEND_CONTEXT for `f' will be `S'. */ 3585 #define DECL_FRIEND_CONTEXT(NODE) \ 3586 ((DECL_DECLARES_FUNCTION_P (NODE) && !DECL_VIRTUAL_P (NODE) \ 3587 && !DECL_CONSTRUCTOR_P (NODE) \ 3588 && (cxx_dialect < cxx23 || !deduction_guide_p (NODE))) \ 3589 ? LANG_DECL_FN_CHECK (NODE)->context \ 3590 : NULL_TREE) 3591 3592 /* Set the DECL_FRIEND_CONTEXT for NODE to CONTEXT. */ 3593 #define SET_DECL_FRIEND_CONTEXT(NODE, CONTEXT) \ 3594 (LANG_DECL_FN_CHECK (NODE)->context = (CONTEXT)) 3595 3596 #define CP_DECL_CONTEXT(NODE) \ 3597 (!DECL_FILE_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : global_namespace) 3598 #define CP_TYPE_CONTEXT(NODE) \ 3599 (!TYPE_FILE_SCOPE_P (NODE) ? TYPE_CONTEXT (NODE) : global_namespace) 3600 #define FROB_CONTEXT(NODE) \ 3601 ((NODE) == global_namespace ? DECL_CONTEXT (NODE) : (NODE)) 3602 3603 /* 1 iff NODE has namespace scope, including the global namespace. */ 3604 #define DECL_NAMESPACE_SCOPE_P(NODE) \ 3605 (!DECL_TEMPLATE_PARM_P (NODE) \ 3606 && TREE_CODE (CP_DECL_CONTEXT (NODE)) == NAMESPACE_DECL) 3607 3608 #define TYPE_NAMESPACE_SCOPE_P(NODE) \ 3609 (TREE_CODE (CP_TYPE_CONTEXT (NODE)) == NAMESPACE_DECL) 3610 3611 #define NAMESPACE_SCOPE_P(NODE) \ 3612 ((DECL_P (NODE) && DECL_NAMESPACE_SCOPE_P (NODE)) \ 3613 || (TYPE_P (NODE) && TYPE_NAMESPACE_SCOPE_P (NODE))) 3614 3615 /* 1 iff NODE is a class member. */ 3616 #define DECL_CLASS_SCOPE_P(NODE) \ 3617 (DECL_CONTEXT (NODE) && TYPE_P (DECL_CONTEXT (NODE))) 3618 3619 #define TYPE_CLASS_SCOPE_P(NODE) \ 3620 (TYPE_CONTEXT (NODE) && TYPE_P (TYPE_CONTEXT (NODE))) 3621 3622 /* 1 iff NODE is function-local. */ 3623 #define DECL_FUNCTION_SCOPE_P(NODE) \ 3624 (DECL_CONTEXT (NODE) \ 3625 && TREE_CODE (DECL_CONTEXT (NODE)) == FUNCTION_DECL) 3626 3627 #define TYPE_FUNCTION_SCOPE_P(NODE) \ 3628 (TYPE_CONTEXT (NODE) && TREE_CODE (TYPE_CONTEXT (NODE)) == FUNCTION_DECL) 3629 3630 /* 1 iff VAR_DECL node NODE is a type-info decl. This flag is set for 3631 both the primary typeinfo object and the associated NTBS name. */ 3632 #define DECL_TINFO_P(NODE) \ 3633 TREE_LANG_FLAG_4 (TREE_CHECK2 (NODE,VAR_DECL,TYPE_DECL)) 3634 3635 /* true iff VAR_DECL node NODE is a NTTP object decl. */ 3636 #define DECL_NTTP_OBJECT_P(NODE) \ 3637 TREE_LANG_FLAG_5 (TREE_CHECK (NODE,VAR_DECL)) 3638 3639 /* 1 iff VAR_DECL node NODE is virtual table or VTT. We forward to 3640 DECL_VIRTUAL_P from the common code, as that has the semantics we 3641 need. But we want a more descriptive name. */ 3642 #define DECL_VTABLE_OR_VTT_P(NODE) DECL_VIRTUAL_P (VAR_DECL_CHECK (NODE)) 3643 3644 /* 1 iff a _DECL for a template parameter came from 3645 synthesize_implicit_template_parm. */ 3646 #define DECL_IMPLICIT_TEMPLATE_PARM_P(NODE) \ 3647 DECL_VIRTUAL_P (DECL_TEMPLATE_PARM_CHECK (NODE)) 3648 3649 /* 1 iff FUNCTION_TYPE or METHOD_TYPE has a ref-qualifier (either & or &&). */ 3650 #define FUNCTION_REF_QUALIFIED(NODE) \ 3651 TREE_LANG_FLAG_4 (FUNC_OR_METHOD_CHECK (NODE)) 3652 3653 /* 1 iff FUNCTION_TYPE or METHOD_TYPE has &&-ref-qualifier. */ 3654 #define FUNCTION_RVALUE_QUALIFIED(NODE) \ 3655 TREE_LANG_FLAG_5 (FUNC_OR_METHOD_CHECK (NODE)) 3656 3657 /* 1 iff NODE is function-local, but for types. */ 3658 #define LOCAL_CLASS_P(NODE) \ 3659 (decl_function_context (TYPE_MAIN_DECL (NODE)) != NULL_TREE) 3660 3661 /* The nesting depth of namespace, class or function. Makes is_ancestor much 3662 simpler. Only 8 bits available. */ 3663 #define SCOPE_DEPTH(NODE) \ 3664 (NAMESPACE_DECL_CHECK (NODE)->base.u.bits.address_space) 3665 3666 /* Whether the namepace is an inline namespace. */ 3667 #define DECL_NAMESPACE_INLINE_P(NODE) \ 3668 TREE_LANG_FLAG_0 (NAMESPACE_DECL_CHECK (NODE)) 3669 3670 /* In a NAMESPACE_DECL, a vector of inline namespaces. */ 3671 #define DECL_NAMESPACE_INLINEES(NODE) \ 3672 (LANG_DECL_NS_CHECK (NODE)->inlinees) 3673 3674 /* Pointer to hash_map from IDENTIFIERS to DECLS */ 3675 #define DECL_NAMESPACE_BINDINGS(NODE) \ 3676 (LANG_DECL_NS_CHECK (NODE)->bindings) 3677 3678 /* In a NAMESPACE_DECL, points to the original namespace if this is 3679 a namespace alias. */ 3680 #define DECL_NAMESPACE_ALIAS(NODE) \ 3681 DECL_ABSTRACT_ORIGIN (NAMESPACE_DECL_CHECK (NODE)) 3682 #define ORIGINAL_NAMESPACE(NODE) \ 3683 (DECL_NAMESPACE_ALIAS (NODE) ? DECL_NAMESPACE_ALIAS (NODE) : (NODE)) 3684 3685 /* Nonzero if NODE is the std namespace. */ 3686 #define DECL_NAMESPACE_STD_P(NODE) \ 3687 ((NODE) == std_node) 3688 3689 /* In a TREE_LIST in an attribute list, indicates that the attribute 3690 must be applied at instantiation time. */ 3691 #define ATTR_IS_DEPENDENT(NODE) TREE_LANG_FLAG_0 (TREE_LIST_CHECK (NODE)) 3692 3693 /* In a TREE_LIST in the argument of attribute abi_tag, indicates that the tag 3694 was inherited from a template parameter, not explicitly indicated. */ 3695 #define ABI_TAG_IMPLICIT(NODE) TREE_LANG_FLAG_0 (TREE_LIST_CHECK (NODE)) 3696 3697 /* In a TREE_LIST for a parameter-declaration-list, indicates that all the 3698 parameters in the list have declarators enclosed in (). */ 3699 #define PARENTHESIZED_LIST_P(NODE) TREE_LANG_FLAG_0 (TREE_LIST_CHECK (NODE)) 3700 3701 /* Non zero if this is a using decl for a dependent scope. */ 3702 #define DECL_DEPENDENT_P(NODE) DECL_LANG_FLAG_0 (USING_DECL_CHECK (NODE)) 3703 3704 /* The scope named in a using decl. */ 3705 #define USING_DECL_SCOPE(NODE) DECL_RESULT_FLD (USING_DECL_CHECK (NODE)) 3706 3707 /* The decls named by a using decl. */ 3708 #define USING_DECL_DECLS(NODE) DECL_INITIAL (USING_DECL_CHECK (NODE)) 3709 3710 /* Non zero if the using decl refers to a dependent type. */ 3711 #define USING_DECL_TYPENAME_P(NODE) DECL_LANG_FLAG_1 (USING_DECL_CHECK (NODE)) 3712 3713 /* True if member using decl NODE refers to a non-inherited NODE. */ 3714 #define USING_DECL_UNRELATED_P(NODE) DECL_LANG_FLAG_2 (USING_DECL_CHECK (NODE)) 3715 3716 /* True iff the CONST_DECL is a class-scope clone from C++20 using enum, 3717 created by handle_using_decl. */ 3718 #define CONST_DECL_USING_P(NODE) \ 3719 (TREE_CODE (NODE) == CONST_DECL \ 3720 && TREE_TYPE (NODE) \ 3721 && TREE_CODE (TREE_TYPE (NODE)) == ENUMERAL_TYPE \ 3722 && DECL_CONTEXT (NODE) != TREE_TYPE (NODE)) 3723 3724 /* In a FUNCTION_DECL, this is nonzero if this function was defined in 3725 the class definition. We have saved away the text of the function, 3726 but have not yet processed it. */ 3727 #define DECL_PENDING_INLINE_P(NODE) \ 3728 (LANG_DECL_FN_CHECK (NODE)->pending_inline_p) 3729 3730 /* If DECL_PENDING_INLINE_P holds, this is the saved text of the 3731 function. */ 3732 #define DECL_PENDING_INLINE_INFO(NODE) \ 3733 (LANG_DECL_FN_CHECK (NODE)->u.pending_inline_info) 3734 3735 /* Nonzero for TYPE_DECL means that it was written 'using name = type'. */ 3736 #define TYPE_DECL_ALIAS_P(NODE) \ 3737 DECL_LANG_FLAG_6 (TYPE_DECL_CHECK (NODE)) 3738 3739 /* Nonzero for a type which is an alias for another type; i.e, a type 3740 which declaration was written 'using name-of-type = 3741 another-type'. */ 3742 #define TYPE_ALIAS_P(NODE) \ 3743 (TYPE_P (NODE) \ 3744 && TYPE_NAME (NODE) \ 3745 && TREE_CODE (TYPE_NAME (NODE)) == TYPE_DECL \ 3746 && TYPE_DECL_ALIAS_P (TYPE_NAME (NODE))) 3747 3748 /* If non-NULL for a VAR_DECL, FUNCTION_DECL, TYPE_DECL, TEMPLATE_DECL, 3749 or CONCEPT_DECL, the entity is either a template specialization (if 3750 DECL_USE_TEMPLATE is nonzero) or the abstract instance of the 3751 template itself. 3752 3753 In either case, DECL_TEMPLATE_INFO is a TEMPLATE_INFO, whose 3754 TI_TEMPLATE is the TEMPLATE_DECL of which this entity is a 3755 specialization or abstract instance. The TI_ARGS is the 3756 template arguments used to specialize the template. 3757 3758 Consider: 3759 3760 template <typename T> struct S { friend void f(T) {} }; 3761 3762 In this case, S<int>::f is, from the point of view of the compiler, 3763 an instantiation of a template -- but, from the point of view of 3764 the language, each instantiation of S results in a wholly unrelated 3765 global function f. In this case, DECL_TEMPLATE_INFO for S<int>::f 3766 will be non-NULL, but DECL_USE_TEMPLATE will be zero. 3767 3768 In a friend declaration, TI_TEMPLATE can be an overload set, or 3769 identifier. */ 3770 #define DECL_TEMPLATE_INFO(NODE) \ 3771 (DECL_LANG_SPECIFIC (TEMPLATE_INFO_DECL_CHECK (NODE)) \ 3772 ->u.min.template_info) 3773 3774 /* For a lambda capture proxy, its captured variable. */ 3775 #define DECL_CAPTURED_VARIABLE(NODE) \ 3776 (LANG_DECL_MIN_CHECK (NODE)->access) 3777 3778 /* For a VAR_DECL, indicates that the variable is actually a 3779 non-static data member of anonymous union that has been promoted to 3780 variable status. */ 3781 #define DECL_ANON_UNION_VAR_P(NODE) \ 3782 (DECL_LANG_FLAG_4 (VAR_DECL_CHECK (NODE))) 3783 3784 /* Template information for a RECORD_TYPE or UNION_TYPE. */ 3785 #define CLASSTYPE_TEMPLATE_INFO(NODE) \ 3786 (TYPE_LANG_SLOT_1 (RECORD_OR_UNION_CHECK (NODE))) 3787 3788 /* Template information for a template template parameter. */ 3789 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO(NODE) \ 3790 (TYPE_LANG_SLOT_1 (BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK (NODE))) 3791 3792 /* Template information for an ENUMERAL_, RECORD_, UNION_TYPE, or 3793 BOUND_TEMPLATE_TEMPLATE_PARM type. This ignores any alias 3794 templateness of NODE. It'd be nice if this could unconditionally 3795 access the slot, rather than return NULL if given a 3796 non-templatable type. */ 3797 #define TYPE_TEMPLATE_INFO(NODE) \ 3798 (TREE_CODE (NODE) == ENUMERAL_TYPE \ 3799 || TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM \ 3800 || RECORD_OR_UNION_TYPE_P (NODE) \ 3801 ? TYPE_LANG_SLOT_1 (NODE) : NULL_TREE) 3802 3803 /* Template information (if any) for an alias type. */ 3804 #define TYPE_ALIAS_TEMPLATE_INFO(NODE) \ 3805 (DECL_LANG_SPECIFIC (TYPE_NAME (NODE)) \ 3806 ? DECL_TEMPLATE_INFO (TYPE_NAME (NODE)) \ 3807 : NULL_TREE) 3808 3809 /* If NODE is a type alias, this accessor returns the template info 3810 for the alias template (if any). Otherwise behave as 3811 TYPE_TEMPLATE_INFO. */ 3812 #define TYPE_TEMPLATE_INFO_MAYBE_ALIAS(NODE) \ 3813 (typedef_variant_p (NODE) \ 3814 ? TYPE_ALIAS_TEMPLATE_INFO (NODE) \ 3815 : TYPE_TEMPLATE_INFO (NODE)) 3816 3817 /* Set the template information for a non-alias n ENUMERAL_, RECORD_, 3818 or UNION_TYPE to VAL. ALIAS's are dealt with separately. */ 3819 #define SET_TYPE_TEMPLATE_INFO(NODE, VAL) \ 3820 (TREE_CODE (NODE) == ENUMERAL_TYPE \ 3821 || (CLASS_TYPE_P (NODE) && !TYPE_ALIAS_P (NODE)) \ 3822 ? (TYPE_LANG_SLOT_1 (NODE) = (VAL)) \ 3823 : (DECL_TEMPLATE_INFO (TYPE_NAME (NODE)) = (VAL))) \ 3824 3825 #define TI_TEMPLATE(NODE) \ 3826 ((struct tree_template_info*)TEMPLATE_INFO_CHECK (NODE))->tmpl 3827 #define TI_ARGS(NODE) \ 3828 ((struct tree_template_info*)TEMPLATE_INFO_CHECK (NODE))->args 3829 #define TI_PENDING_TEMPLATE_FLAG(NODE) \ 3830 TREE_LANG_FLAG_1 (TEMPLATE_INFO_CHECK (NODE)) 3831 3832 /* For a class or variable template specialization, this contains the 3833 TEMPLATE_INFO result of most_specialized_partial_spec, i.e. the selected 3834 partial template specialization and arguments relative to it. */ 3835 #define TI_PARTIAL_INFO(NODE) \ 3836 (gcc_checking_assert (PRIMARY_TEMPLATE_P (TI_TEMPLATE (NODE))), \ 3837 ((struct tree_template_info*)NODE)->partial) 3838 3839 /* For a given TREE_VEC containing a template argument list, 3840 this property contains the number of arguments that are not 3841 defaulted. */ 3842 #define NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) \ 3843 TREE_CHAIN (TREE_VEC_CHECK (NODE)) 3844 3845 /* Below are the setter and getter of the NON_DEFAULT_TEMPLATE_ARGS_COUNT 3846 property. */ 3847 #define SET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE, INT_VALUE) \ 3848 NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) = build_int_cst (NULL_TREE, INT_VALUE) 3849 #if CHECKING_P 3850 #define GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) \ 3851 int_cst_value (NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE)) 3852 #else 3853 #define GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) \ 3854 NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE) \ 3855 ? int_cst_value (NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE)) \ 3856 : TREE_VEC_LENGTH (INNERMOST_TEMPLATE_ARGS (NODE)) 3857 #endif 3858 3859 /* True iff NODE represents the template args for a type-constraint, 3860 in which case the first one represents the constrained type. 3861 Currently only set during mangling. */ 3862 #define TEMPLATE_ARGS_TYPE_CONSTRAINT_P(NODE) \ 3863 TREE_PRIVATE (TREE_VEC_CHECK (NODE)) 3864 3865 /* The list of access checks that were deferred during parsing 3866 which need to be performed at template instantiation time. 3867 3868 FIXME this should be associated with the TEMPLATE_DECL, not the 3869 TEMPLATE_INFO. */ 3870 #define TI_DEFERRED_ACCESS_CHECKS(NODE) \ 3871 ((struct tree_template_info*)TEMPLATE_INFO_CHECK \ 3872 (NODE))->deferred_access_checks 3873 3874 /* We use TREE_VECs to hold template arguments. If there is only one 3875 level of template arguments, then the TREE_VEC contains the 3876 arguments directly. If there is more than one level of template 3877 arguments, then each entry in the TREE_VEC is itself a TREE_VEC, 3878 containing the template arguments for a single level. The first 3879 entry in the outer TREE_VEC is the outermost level of template 3880 parameters; the last is the innermost. 3881 3882 It is incorrect to ever form a template argument vector containing 3883 only one level of arguments, but which is a TREE_VEC containing as 3884 its only entry the TREE_VEC for that level. 3885 3886 For each TREE_VEC containing the template arguments for a single 3887 level, it's possible to get or set the number of non defaulted 3888 template arguments by using the accessor macros 3889 GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT or 3890 SET_NON_DEFAULT_TEMPLATE_ARGS_COUNT. */ 3891 3892 /* Nonzero if the template arguments is actually a vector of vectors, 3893 rather than just a vector. */ 3894 #define TMPL_ARGS_HAVE_MULTIPLE_LEVELS(NODE) \ 3895 (NODE && TREE_VEC_LENGTH (NODE) && TREE_VEC_ELT (NODE, 0) \ 3896 && TREE_CODE (TREE_VEC_ELT (NODE, 0)) == TREE_VEC) 3897 3898 /* The depth of a template argument vector. When called directly by 3899 the parser, we use a TREE_LIST rather than a TREE_VEC to represent 3900 template arguments. In that case, there is only one level of template 3901 arguments. We may even see NULL_TREE if there are 0 levels of 3902 template arguments, as in cp_parser_requires_expression. */ 3903 #define TMPL_ARGS_DEPTH(NODE) \ 3904 ((NODE) == NULL_TREE ? 0 \ 3905 : TMPL_ARGS_HAVE_MULTIPLE_LEVELS (NODE) ? TREE_VEC_LENGTH (NODE) \ 3906 : 1) 3907 3908 /* The LEVELth level of the template ARGS. The outermost level of 3909 args is level 1, not level 0. */ 3910 #define TMPL_ARGS_LEVEL(ARGS, LEVEL) \ 3911 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (ARGS) \ 3912 ? TREE_VEC_ELT (ARGS, (LEVEL) - 1) \ 3913 : (gcc_checking_assert ((LEVEL) == 1), (ARGS))) 3914 3915 /* Set the LEVELth level of the template ARGS to VAL. This macro does 3916 not work with single-level argument vectors. */ 3917 #define SET_TMPL_ARGS_LEVEL(ARGS, LEVEL, VAL) \ 3918 (TREE_VEC_ELT (ARGS, (LEVEL) - 1) = (VAL)) 3919 3920 /* Accesses the IDXth parameter in the LEVELth level of the ARGS. */ 3921 #define TMPL_ARG(ARGS, LEVEL, IDX) \ 3922 (TREE_VEC_ELT (TMPL_ARGS_LEVEL (ARGS, LEVEL), IDX)) 3923 3924 /* Given a single level of template arguments in NODE, return the 3925 number of arguments. */ 3926 #define NUM_TMPL_ARGS(NODE) \ 3927 (TREE_VEC_LENGTH (NODE)) 3928 3929 /* Returns the innermost level of template arguments in ARGS. */ 3930 #define INNERMOST_TEMPLATE_ARGS(NODE) \ 3931 (get_innermost_template_args ((NODE), 1)) 3932 3933 /* The number of levels of template parameters given by NODE. */ 3934 #define TMPL_PARMS_DEPTH(NODE) \ 3935 ((HOST_WIDE_INT) TREE_INT_CST_LOW (TREE_PURPOSE (NODE))) 3936 3937 /* The TEMPLATE_DECL instantiated or specialized by NODE. This 3938 TEMPLATE_DECL will be the immediate parent, not the most general 3939 template. For example, in: 3940 3941 template <class T> struct S { template <class U> void f(U); } 3942 3943 the FUNCTION_DECL for S<int>::f<double> will have, as its 3944 DECL_TI_TEMPLATE, `template <class U> S<int>::f<U>'. 3945 3946 As a special case, for a member friend template of a template 3947 class, this value will not be a TEMPLATE_DECL, but rather an 3948 IDENTIFIER_NODE or OVERLOAD indicating the name of the template and 3949 any explicit template arguments provided. For example, in: 3950 3951 template <class T> struct S { friend void f<int>(int, double); } 3952 3953 the DECL_TI_TEMPLATE will be an IDENTIFIER_NODE for `f' and the 3954 DECL_TI_ARGS will be {int}. 3955 3956 For a FIELD_DECL with a non-static data member initializer, this value 3957 is the FIELD_DECL it was instantiated from. */ 3958 #define DECL_TI_TEMPLATE(NODE) TI_TEMPLATE (DECL_TEMPLATE_INFO (NODE)) 3959 3960 /* The template arguments used to obtain this decl from the most 3961 general form of DECL_TI_TEMPLATE. For the example given for 3962 DECL_TI_TEMPLATE, the DECL_TI_ARGS will be {int, double}. These 3963 are always the full set of arguments required to instantiate this 3964 declaration from the most general template specialized here. */ 3965 #define DECL_TI_ARGS(NODE) TI_ARGS (DECL_TEMPLATE_INFO (NODE)) 3966 3967 /* The TEMPLATE_DECL associated with NODE, a class type. Even if NODE 3968 will be generated from a partial specialization, the TEMPLATE_DECL 3969 referred to here will be the original template. For example, 3970 given: 3971 3972 template <typename T> struct S {}; 3973 template <typename T> struct S<T*> {}; 3974 3975 the CLASSTYPE_TI_TEMPLATE for S<int*> will be S, not the S<T*>. 3976 3977 For a member class template, CLASSTYPE_TI_TEMPLATE always refers to the 3978 partial instantiation rather than the primary template. CLASSTYPE_TI_ARGS 3979 are for the primary template if the partial instantiation isn't 3980 specialized, or for the explicit specialization if it is, e.g. 3981 3982 template <class T> class C { template <class U> class D; } 3983 template <> template <class U> class C<int>::D; */ 3984 #define CLASSTYPE_TI_TEMPLATE(NODE) TI_TEMPLATE (CLASSTYPE_TEMPLATE_INFO (NODE)) 3985 #define CLASSTYPE_TI_ARGS(NODE) TI_ARGS (CLASSTYPE_TEMPLATE_INFO (NODE)) 3986 3987 /* For a template instantiation TYPE, returns the TYPE corresponding 3988 to the primary template. Otherwise returns TYPE itself. */ 3989 #define CLASSTYPE_PRIMARY_TEMPLATE_TYPE(TYPE) \ 3990 ((CLASSTYPE_USE_TEMPLATE ((TYPE)) \ 3991 && !CLASSTYPE_TEMPLATE_SPECIALIZATION ((TYPE))) \ 3992 ? TREE_TYPE (DECL_TEMPLATE_RESULT (DECL_PRIMARY_TEMPLATE \ 3993 (CLASSTYPE_TI_TEMPLATE ((TYPE))))) \ 3994 : (TYPE)) 3995 3996 /* Like CLASS_TI_TEMPLATE, but also works for ENUMERAL_TYPEs. */ 3997 #define TYPE_TI_TEMPLATE(NODE) \ 3998 (TI_TEMPLATE (TYPE_TEMPLATE_INFO (NODE))) 3999 4000 /* Like DECL_TI_ARGS, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */ 4001 #define TYPE_TI_ARGS(NODE) \ 4002 (TI_ARGS (TYPE_TEMPLATE_INFO (NODE))) 4003 4004 #define INNERMOST_TEMPLATE_PARMS(NODE) TREE_VALUE (NODE) 4005 4006 /* Nonzero if NODE (a TEMPLATE_DECL) is a member template, in the 4007 sense of [temp.mem]. */ 4008 #define DECL_MEMBER_TEMPLATE_P(NODE) \ 4009 (DECL_LANG_FLAG_1 (TEMPLATE_DECL_CHECK (NODE))) 4010 4011 /* Nonzero if the NODE corresponds to the template parameters for a 4012 member template, whose inline definition is being processed after 4013 the class definition is complete. */ 4014 #define TEMPLATE_PARMS_FOR_INLINE(NODE) TREE_LANG_FLAG_1 (NODE) 4015 4016 /* Determine if a declaration (PARM_DECL or FIELD_DECL) is a pack. */ 4017 #define DECL_PACK_P(NODE) \ 4018 (DECL_P (NODE) && PACK_EXPANSION_P (TREE_TYPE (NODE))) 4019 4020 /* Determines if NODE is an expansion of one or more parameter packs, 4021 e.g., a TYPE_PACK_EXPANSION or EXPR_PACK_EXPANSION. */ 4022 #define PACK_EXPANSION_P(NODE) \ 4023 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION \ 4024 || TREE_CODE (NODE) == EXPR_PACK_EXPANSION) 4025 4026 #define PACK_EXPANSION_CHECK(NODE) \ 4027 TREE_CHECK2 (NODE, TYPE_PACK_EXPANSION, EXPR_PACK_EXPANSION) 4028 4029 /* Extracts the type or expression pattern from a TYPE_PACK_EXPANSION or 4030 EXPR_PACK_EXPANSION. */ 4031 #define PACK_EXPANSION_PATTERN(NODE) \ 4032 (TREE_CODE (PACK_EXPANSION_CHECK (NODE)) == TYPE_PACK_EXPANSION \ 4033 ? TREE_TYPE (NODE) : TREE_OPERAND (NODE, 0)) 4034 4035 /* The list of parameter packs used in the PACK_EXPANSION_* node. The 4036 TREE_VALUE of each TREE_LIST contains the parameter packs. */ 4037 #define PACK_EXPANSION_PARAMETER_PACKS(NODE) \ 4038 *(TREE_CODE (PACK_EXPANSION_CHECK (NODE)) == EXPR_PACK_EXPANSION \ 4039 ? &TREE_OPERAND (NODE, 1) \ 4040 : &TYPE_MIN_VALUE_RAW (TYPE_PACK_EXPANSION_CHECK (NODE))) 4041 4042 /* Any additional template args to be applied when substituting into 4043 the pattern, set by tsubst_pack_expansion for partial instantiations. 4044 If this is a TREE_LIST, the TREE_VALUE of the first element is the 4045 usual template argument TREE_VEC, and the TREE_PURPOSE of later elements 4046 are enclosing functions that provided function parameter packs we'll need 4047 to map appropriately. */ 4048 #define PACK_EXPANSION_EXTRA_ARGS(NODE) \ 4049 *(TREE_CODE (PACK_EXPANSION_CHECK (NODE)) == TYPE_PACK_EXPANSION \ 4050 ? &TYPE_MAX_VALUE_RAW (NODE) \ 4051 : &TREE_OPERAND ((NODE), 2)) 4052 4053 /* True iff this pack expansion is within a function context. */ 4054 #define PACK_EXPANSION_LOCAL_P(NODE) \ 4055 TREE_LANG_FLAG_0 (PACK_EXPANSION_CHECK (NODE)) 4056 4057 /* True iff this pack expansion is for sizeof.... */ 4058 #define PACK_EXPANSION_SIZEOF_P(NODE) \ 4059 TREE_LANG_FLAG_1 (PACK_EXPANSION_CHECK (NODE)) 4060 4061 /* True iff this pack expansion is for auto... in lambda init-capture. */ 4062 #define PACK_EXPANSION_AUTO_P(NODE) \ 4063 TREE_LANG_FLAG_2 (PACK_EXPANSION_CHECK (NODE)) 4064 4065 /* True if we must use PACK_EXPANSION_EXTRA_ARGS and avoid partial 4066 instantiation of this pack expansion. */ 4067 #define PACK_EXPANSION_FORCE_EXTRA_ARGS_P(NODE) \ 4068 TREE_LANG_FLAG_3 (PACK_EXPANSION_CHECK (NODE)) 4069 4070 /* True iff the wildcard can match a template parameter pack. */ 4071 #define WILDCARD_PACK_P(NODE) TREE_LANG_FLAG_0 (NODE) 4072 4073 /* Determine if this is an argument pack. */ 4074 #define ARGUMENT_PACK_P(NODE) \ 4075 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK \ 4076 || TREE_CODE (NODE) == NONTYPE_ARGUMENT_PACK) 4077 4078 #define ARGUMENT_PACK_CHECK(NODE) \ 4079 TREE_CHECK2 (NODE, TYPE_ARGUMENT_PACK, NONTYPE_ARGUMENT_PACK) 4080 4081 /* The arguments stored in an argument pack. Arguments are stored in a 4082 TREE_VEC, which may have length zero. */ 4083 #define ARGUMENT_PACK_ARGS(NODE) \ 4084 (TREE_CODE (ARGUMENT_PACK_CHECK (NODE)) == TYPE_ARGUMENT_PACK \ 4085 ? TREE_TYPE (NODE) : TREE_OPERAND (NODE, 0)) 4086 4087 /* Whether the argument pack is "incomplete", meaning that more 4088 arguments can still be deduced. Incomplete argument packs are only 4089 used when the user has provided an explicit template argument list 4090 for a variadic function template. Some of the explicit template 4091 arguments will be placed into the beginning of the argument pack, 4092 but additional arguments might still be deduced. */ 4093 #define ARGUMENT_PACK_INCOMPLETE_P(NODE) \ 4094 TREE_ADDRESSABLE (ARGUMENT_PACK_ARGS (NODE)) 4095 4096 /* When ARGUMENT_PACK_INCOMPLETE_P, stores the explicit template 4097 arguments used to fill this pack. */ 4098 #define ARGUMENT_PACK_EXPLICIT_ARGS(NODE) \ 4099 TREE_TYPE (ARGUMENT_PACK_ARGS (NODE)) 4100 4101 /* In an ARGUMENT_PACK_SELECT, the argument pack from which an 4102 argument will be selected. */ 4103 #define ARGUMENT_PACK_SELECT_FROM_PACK(NODE) \ 4104 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->argument_pack) 4105 4106 /* In an ARGUMENT_PACK_SELECT, the index of the argument we want to 4107 select. */ 4108 #define ARGUMENT_PACK_SELECT_INDEX(NODE) \ 4109 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->index) 4110 4111 #define FOLD_EXPR_CHECK(NODE) \ 4112 TREE_CHECK4 (NODE, UNARY_LEFT_FOLD_EXPR, UNARY_RIGHT_FOLD_EXPR, \ 4113 BINARY_LEFT_FOLD_EXPR, BINARY_RIGHT_FOLD_EXPR) 4114 4115 #define BINARY_FOLD_EXPR_CHECK(NODE) \ 4116 TREE_CHECK2 (NODE, BINARY_LEFT_FOLD_EXPR, BINARY_RIGHT_FOLD_EXPR) 4117 4118 /* True if NODE is UNARY_FOLD_EXPR or a BINARY_FOLD_EXPR */ 4119 #define FOLD_EXPR_P(NODE) \ 4120 (TREE_CODE (NODE) == UNARY_LEFT_FOLD_EXPR \ 4121 || TREE_CODE (NODE) == UNARY_RIGHT_FOLD_EXPR \ 4122 || TREE_CODE (NODE) == BINARY_LEFT_FOLD_EXPR \ 4123 || TREE_CODE (NODE) == BINARY_RIGHT_FOLD_EXPR) 4124 4125 /* True when NODE is a fold over a compound assignment operator. */ 4126 #define FOLD_EXPR_MODIFY_P(NODE) \ 4127 TREE_LANG_FLAG_0 (FOLD_EXPR_CHECK (NODE)) 4128 4129 /* An INTEGER_CST containing the tree code of the folded operator. */ 4130 #define FOLD_EXPR_OP_RAW(NODE) \ 4131 TREE_OPERAND (FOLD_EXPR_CHECK (NODE), 0) 4132 4133 /* The tree code of the folded operator. */ 4134 #define FOLD_EXPR_OP(NODE) \ 4135 ((enum tree_code) TREE_INT_CST_LOW (FOLD_EXPR_OP_RAW (NODE))) 4136 4137 /* The expression containing an unexpanded parameter pack. */ 4138 #define FOLD_EXPR_PACK(NODE) \ 4139 TREE_OPERAND (FOLD_EXPR_CHECK (NODE), 1) 4140 4141 /* In a binary fold expression, the argument with no unexpanded 4142 parameter packs. */ 4143 #define FOLD_EXPR_INIT(NODE) \ 4144 TREE_OPERAND (BINARY_FOLD_EXPR_CHECK (NODE), 2) 4145 4146 /* In a FUNCTION_DECL, the saved auto-return pattern. */ 4147 #define DECL_SAVED_AUTO_RETURN_TYPE(NODE) \ 4148 (LANG_DECL_FN_CHECK (FUNCTION_DECL_CHECK (NODE)) \ 4149 ->u.saved_auto_return_type) 4150 4151 /* In a RETURN_EXPR, whether the expression refers to the address 4152 of a local variable. */ 4153 #define RETURN_EXPR_LOCAL_ADDR_P(NODE) \ 4154 TREE_LANG_FLAG_0 (RETURN_EXPR_CHECK (NODE)) 4155 4156 /* True if NODE is an implicit INDIRECT_REF from convert_from_reference. */ 4157 #define REFERENCE_REF_P(NODE) \ 4158 (INDIRECT_REF_P (NODE) \ 4159 && TREE_TYPE (TREE_OPERAND (NODE, 0)) \ 4160 && TYPE_REF_P (TREE_TYPE (TREE_OPERAND ((NODE), 0)))) 4161 4162 /* Look through an implicit INDIRECT_REF from convert_from_reference. */ 4163 #define STRIP_REFERENCE_REF(NODE) \ 4164 (REFERENCE_REF_P (NODE) ? TREE_OPERAND (NODE, 0) : NODE) 4165 4166 /* True iff this represents an lvalue being treated as an rvalue during return 4167 or throw as per [class.copy.elision]. */ 4168 #define IMPLICIT_RVALUE_P(NODE) \ 4169 TREE_LANG_FLAG_3 (TREE_CHECK2 ((NODE), NON_LVALUE_EXPR, STATIC_CAST_EXPR)) 4170 4171 #define NEW_EXPR_USE_GLOBAL(NODE) \ 4172 TREE_LANG_FLAG_0 (NEW_EXPR_CHECK (NODE)) 4173 #define DELETE_EXPR_USE_GLOBAL(NODE) \ 4174 TREE_LANG_FLAG_0 (DELETE_EXPR_CHECK (NODE)) 4175 #define DELETE_EXPR_USE_VEC(NODE) \ 4176 TREE_LANG_FLAG_1 (DELETE_EXPR_CHECK (NODE)) 4177 4178 /* True iff this represents returning a potential named return value. */ 4179 #define INIT_EXPR_NRV_P(NODE) \ 4180 TREE_LANG_FLAG_0 (INIT_EXPR_CHECK (NODE)) 4181 4182 #define CALL_OR_AGGR_INIT_CHECK(NODE) \ 4183 TREE_CHECK2 ((NODE), CALL_EXPR, AGGR_INIT_EXPR) 4184 4185 /* In a CALL_EXPR appearing in a template, true if Koenig lookup 4186 should be performed at instantiation time. */ 4187 #define KOENIG_LOOKUP_P(NODE) TREE_LANG_FLAG_0 (CALL_EXPR_CHECK (NODE)) 4188 4189 /* True if the arguments to NODE should be evaluated in left-to-right 4190 order regardless of PUSH_ARGS_REVERSED. */ 4191 #define CALL_EXPR_ORDERED_ARGS(NODE) \ 4192 TREE_LANG_FLAG_3 (CALL_OR_AGGR_INIT_CHECK (NODE)) 4193 4194 /* True if the arguments to NODE should be evaluated in right-to-left 4195 order regardless of PUSH_ARGS_REVERSED. */ 4196 #define CALL_EXPR_REVERSE_ARGS(NODE) \ 4197 TREE_LANG_FLAG_5 (CALL_OR_AGGR_INIT_CHECK (NODE)) 4198 4199 /* True if CALL_EXPR was written as an operator expression, not a function 4200 call. */ 4201 #define CALL_EXPR_OPERATOR_SYNTAX(NODE) \ 4202 TREE_LANG_FLAG_6 (CALL_OR_AGGR_INIT_CHECK (NODE)) 4203 4204 /* A TREE_LIST containing the result of phase 1 name lookup of the operator 4205 overloads that are pertinent to the dependent operator expression whose 4206 type is NODE. Each TREE_PURPOSE is an IDENTIFIER_NODE and TREE_VALUE is 4207 the corresponding (possibly empty) lookup result. The TREE_TYPE of the 4208 first TREE_LIST node points back to NODE. */ 4209 #define DEPENDENT_OPERATOR_TYPE_SAVED_LOOKUPS(NODE) \ 4210 TYPE_VALUES_RAW (DEPENDENT_OPERATOR_TYPE_CHECK (NODE)) 4211 4212 /* Guarded helper for the above accessor macro that takes a (templated) 4213 operator expression instead of the type thereof. */ 4214 inline tree 4215 templated_operator_saved_lookups (tree t) 4216 { 4217 tree type = TREE_TYPE (EXPR_CHECK (t)); 4218 if (type && TREE_CODE (type) == DEPENDENT_OPERATOR_TYPE) 4219 return DEPENDENT_OPERATOR_TYPE_SAVED_LOOKUPS (type); 4220 else 4221 return NULL_TREE; 4222 } 4223 4224 /* Indicates whether a string literal has been parenthesized. Such 4225 usages are disallowed in certain circumstances. */ 4226 4227 #define PAREN_STRING_LITERAL_P(NODE) \ 4228 TREE_LANG_FLAG_0 (STRING_CST_CHECK (NODE)) 4229 4230 /* Indicates whether a COMPONENT_REF or a SCOPE_REF has been parenthesized, an 4231 INDIRECT_REF comes from parenthesizing a _DECL, or a PAREN_EXPR identifies a 4232 parenthesized initializer relevant for decltype(auto). Currently only set 4233 some of the time in C++14 mode. */ 4234 4235 #define REF_PARENTHESIZED_P(NODE) \ 4236 TREE_LANG_FLAG_2 (TREE_CHECK5 ((NODE), COMPONENT_REF, INDIRECT_REF, SCOPE_REF, VIEW_CONVERT_EXPR, PAREN_EXPR)) 4237 4238 /* Nonzero if this AGGR_INIT_EXPR provides for initialization via a 4239 constructor call, rather than an ordinary function call. */ 4240 #define AGGR_INIT_VIA_CTOR_P(NODE) \ 4241 TREE_LANG_FLAG_0 (AGGR_INIT_EXPR_CHECK (NODE)) 4242 4243 /* Nonzero if expanding this AGGR_INIT_EXPR should first zero-initialize 4244 the object. */ 4245 #define AGGR_INIT_ZERO_FIRST(NODE) \ 4246 TREE_LANG_FLAG_2 (AGGR_INIT_EXPR_CHECK (NODE)) 4247 4248 /* Nonzero means that the call is the jump from a thunk to the 4249 thunked-to function. */ 4250 #define AGGR_INIT_FROM_THUNK_P(NODE) \ 4251 (AGGR_INIT_EXPR_CHECK (NODE)->base.protected_flag) 4252 4253 /* AGGR_INIT_EXPR accessors. These are equivalent to the CALL_EXPR 4254 accessors, except for AGGR_INIT_EXPR_SLOT (which takes the place of 4255 CALL_EXPR_STATIC_CHAIN). */ 4256 4257 #define AGGR_INIT_EXPR_FN(NODE) TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 1) 4258 #define AGGR_INIT_EXPR_SLOT(NODE) \ 4259 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 2) 4260 #define AGGR_INIT_EXPR_ARG(NODE, I) \ 4261 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), (I) + 3) 4262 #define aggr_init_expr_nargs(NODE) (VL_EXP_OPERAND_LENGTH(NODE) - 3) 4263 4264 /* AGGR_INIT_EXPR_ARGP returns a pointer to the argument vector for NODE. 4265 We can't use &AGGR_INIT_EXPR_ARG (NODE, 0) because that will complain if 4266 the argument count is zero when checking is enabled. Instead, do 4267 the pointer arithmetic to advance past the 3 fixed operands in a 4268 AGGR_INIT_EXPR. That produces a valid pointer to just past the end of 4269 the operand array, even if it's not valid to dereference it. */ 4270 #define AGGR_INIT_EXPR_ARGP(NODE) \ 4271 (&(TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 0)) + 3) 4272 4273 /* Abstract iterators for AGGR_INIT_EXPRs. */ 4274 4275 /* Structure containing iterator state. */ 4276 struct aggr_init_expr_arg_iterator { 4277 tree t; /* the aggr_init_expr */ 4278 int n; /* argument count */ 4279 int i; /* next argument index */ 4280 }; 4281 4282 /* Initialize the abstract argument list iterator object ITER with the 4283 arguments from AGGR_INIT_EXPR node EXP. */ 4284 inline void 4285 init_aggr_init_expr_arg_iterator (tree exp, 4286 aggr_init_expr_arg_iterator *iter) 4287 { 4288 iter->t = exp; 4289 iter->n = aggr_init_expr_nargs (exp); 4290 iter->i = 0; 4291 } 4292 4293 /* Return the next argument from abstract argument list iterator object ITER, 4294 and advance its state. Return NULL_TREE if there are no more arguments. */ 4295 inline tree 4296 next_aggr_init_expr_arg (aggr_init_expr_arg_iterator *iter) 4297 { 4298 tree result; 4299 if (iter->i >= iter->n) 4300 return NULL_TREE; 4301 result = AGGR_INIT_EXPR_ARG (iter->t, iter->i); 4302 iter->i++; 4303 return result; 4304 } 4305 4306 /* Initialize the abstract argument list iterator object ITER, then advance 4307 past and return the first argument. Useful in for expressions, e.g. 4308 for (arg = first_aggr_init_expr_arg (exp, &iter); arg; 4309 arg = next_aggr_init_expr_arg (&iter)) */ 4310 inline tree 4311 first_aggr_init_expr_arg (tree exp, aggr_init_expr_arg_iterator *iter) 4312 { 4313 init_aggr_init_expr_arg_iterator (exp, iter); 4314 return next_aggr_init_expr_arg (iter); 4315 } 4316 4317 /* Test whether there are more arguments in abstract argument list iterator 4318 ITER, without changing its state. */ 4319 inline bool 4320 more_aggr_init_expr_args_p (const aggr_init_expr_arg_iterator *iter) 4321 { 4322 return (iter->i < iter->n); 4323 } 4324 4325 /* Iterate through each argument ARG of AGGR_INIT_EXPR CALL, using variable 4326 ITER (of type aggr_init_expr_arg_iterator) to hold the iteration state. */ 4327 #define FOR_EACH_AGGR_INIT_EXPR_ARG(arg, iter, call) \ 4328 for ((arg) = first_aggr_init_expr_arg ((call), &(iter)); (arg); \ 4329 (arg) = next_aggr_init_expr_arg (&(iter))) 4330 4331 /* We have an expression tree T that represents a call, either CALL_EXPR 4332 or AGGR_INIT_EXPR. Return a reference to the Nth argument. */ 4333 4334 inline tree& 4335 get_nth_callarg (tree t, int n) 4336 { 4337 switch (TREE_CODE (t)) 4338 { 4339 case CALL_EXPR: 4340 return CALL_EXPR_ARG (t, n); 4341 4342 case AGGR_INIT_EXPR: 4343 return AGGR_INIT_EXPR_ARG (t, n); 4344 4345 default: 4346 gcc_unreachable (); 4347 } 4348 } 4349 4350 /* VEC_INIT_EXPR accessors. */ 4351 #define VEC_INIT_EXPR_SLOT(NODE) TREE_OPERAND (VEC_INIT_EXPR_CHECK (NODE), 0) 4352 #define VEC_INIT_EXPR_INIT(NODE) TREE_OPERAND (VEC_INIT_EXPR_CHECK (NODE), 1) 4353 4354 /* Indicates that a VEC_INIT_EXPR is a potential constant expression. 4355 Only set when the current function is constexpr. */ 4356 #define VEC_INIT_EXPR_IS_CONSTEXPR(NODE) \ 4357 TREE_LANG_FLAG_0 (VEC_INIT_EXPR_CHECK (NODE)) 4358 4359 /* Indicates that a VEC_INIT_EXPR is expressing value-initialization. */ 4360 #define VEC_INIT_EXPR_VALUE_INIT(NODE) \ 4361 TREE_LANG_FLAG_1 (VEC_INIT_EXPR_CHECK (NODE)) 4362 4363 /* If T is a VEC_INIT_EXPR, return it, possibly stripping a TARGET_EXPR 4364 wrapper. Otherwise, return null. */ 4365 inline tree 4366 get_vec_init_expr (tree t) 4367 { 4368 if (t && TREE_CODE (t) == TARGET_EXPR) 4369 t = TARGET_EXPR_INITIAL (t); 4370 if (t && TREE_CODE (t) == VEC_INIT_EXPR) 4371 return t; 4372 return NULL_TREE; 4373 } 4374 4375 /* The condition under which this MUST_NOT_THROW_EXPR actually blocks 4376 exceptions. NULL_TREE means 'true'. */ 4377 #define MUST_NOT_THROW_COND(NODE) \ 4378 TREE_OPERAND (MUST_NOT_THROW_EXPR_CHECK (NODE), 1) 4379 4380 /* The TYPE_MAIN_DECL for a class template type is a TYPE_DECL, not a 4381 TEMPLATE_DECL. This macro determines whether or not a given class 4382 type is really a template type, as opposed to an instantiation or 4383 specialization of one. */ 4384 #define CLASSTYPE_IS_TEMPLATE(NODE) \ 4385 (CLASSTYPE_TEMPLATE_INFO (NODE) \ 4386 && !CLASSTYPE_USE_TEMPLATE (NODE) \ 4387 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE))) 4388 4389 /* The name used by the user to name the typename type. Typically, 4390 this is an IDENTIFIER_NODE, and the same as the DECL_NAME on the 4391 corresponding TYPE_DECL. However, this may also be a 4392 TEMPLATE_ID_EXPR if we had something like `typename X::Y<T>'. */ 4393 #define TYPENAME_TYPE_FULLNAME(NODE) \ 4394 (TYPE_VALUES_RAW (TYPENAME_TYPE_CHECK (NODE))) 4395 4396 /* True if a TYPENAME_TYPE was declared as an "enum". */ 4397 #define TYPENAME_IS_ENUM_P(NODE) \ 4398 (TREE_LANG_FLAG_0 (TYPENAME_TYPE_CHECK (NODE))) 4399 4400 /* True if a TYPENAME_TYPE was declared as a "class", "struct", or 4401 "union". */ 4402 #define TYPENAME_IS_CLASS_P(NODE) \ 4403 (TREE_LANG_FLAG_1 (TYPENAME_TYPE_CHECK (NODE))) 4404 4405 /* True if a TYPENAME_TYPE is in the process of being resolved. */ 4406 #define TYPENAME_IS_RESOLVING_P(NODE) \ 4407 (TREE_LANG_FLAG_2 (TYPENAME_TYPE_CHECK (NODE))) 4408 4409 /* [class.virtual] 4410 4411 A class that declares or inherits a virtual function is called a 4412 polymorphic class. */ 4413 #define TYPE_POLYMORPHIC_P(NODE) (TREE_LANG_FLAG_2 (NODE)) 4414 4415 /* Nonzero if this class has a virtual function table pointer. */ 4416 #define TYPE_CONTAINS_VPTR_P(NODE) \ 4417 (TYPE_POLYMORPHIC_P (NODE) || CLASSTYPE_VBASECLASSES (NODE)) 4418 4419 /* Nonzero if NODE is a FUNCTION_DECL or VARIABLE_DECL (for a decl 4420 with namespace scope) declared in a local scope. */ 4421 #define DECL_LOCAL_DECL_P(NODE) \ 4422 DECL_LANG_FLAG_0 (VAR_OR_FUNCTION_DECL_CHECK (NODE)) 4423 4424 /* The namespace-scope decl a DECL_LOCAL_DECL_P aliases. */ 4425 #define DECL_LOCAL_DECL_ALIAS(NODE) \ 4426 DECL_ACCESS ((gcc_checking_assert (DECL_LOCAL_DECL_P (NODE)), NODE)) 4427 4428 /* True if NODE was declared with auto in its return type, but it has 4429 started compilation and so the return type might have been changed by 4430 return type deduction; its declared return type should be found in 4431 DECL_SAVED_AUTO_RETURN_TYPE (NODE). */ 4432 #define FNDECL_USED_AUTO(NODE) \ 4433 TREE_LANG_FLAG_2 (FUNCTION_DECL_CHECK (NODE)) 4434 4435 /* True if NODE is needed for a manifestly constant-evaluated expression. 4436 This doesn't especially need to be a flag, since currently it's only 4437 used for error recovery; if we run out of function flags it could move 4438 to an attribute. */ 4439 #define FNDECL_MANIFESTLY_CONST_EVALUATED(NODE) \ 4440 TREE_LANG_FLAG_4 (FUNCTION_DECL_CHECK (NODE)) 4441 4442 /* True for artificial decls added for OpenMP privatized non-static 4443 data members. */ 4444 #define DECL_OMP_PRIVATIZED_MEMBER(NODE) \ 4445 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))->u.base.anticipated_p) 4446 4447 /* Nonzero if NODE is an artificial FUNCTION_DECL for 4448 #pragma omp declare reduction. */ 4449 #define DECL_OMP_DECLARE_REDUCTION_P(NODE) \ 4450 (LANG_DECL_FN_CHECK (DECL_COMMON_CHECK (NODE))->omp_declare_reduction_p) 4451 4452 /* Nonzero if DECL has been declared threadprivate by 4453 #pragma omp threadprivate. */ 4454 #define CP_DECL_THREADPRIVATE_P(DECL) \ 4455 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (DECL))->u.base.threadprivate_or_deleted_p) 4456 4457 /* Nonzero if NODE is a VAR_DECL which has been declared inline. */ 4458 #define DECL_VAR_DECLARED_INLINE_P(NODE) \ 4459 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE)) \ 4460 ? DECL_LANG_SPECIFIC (NODE)->u.base.var_declared_inline_p \ 4461 : false) 4462 #define SET_DECL_VAR_DECLARED_INLINE_P(NODE) \ 4463 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))->u.base.var_declared_inline_p \ 4464 = true) 4465 4466 /* True if NODE is a constant variable with a value-dependent initializer. */ 4467 #define DECL_DEPENDENT_INIT_P(NODE) \ 4468 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE)) \ 4469 && DECL_LANG_SPECIFIC (NODE)->u.base.dependent_init_p) 4470 #define SET_DECL_DEPENDENT_INIT_P(NODE, X) \ 4471 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))->u.base.dependent_init_p = (X)) 4472 4473 /* Nonzero if NODE is an artificial VAR_DECL for a C++17 structured binding 4474 declaration or one of VAR_DECLs for the user identifiers in it. */ 4475 #define DECL_DECOMPOSITION_P(NODE) \ 4476 (VAR_P (NODE) && DECL_LANG_SPECIFIC (NODE) \ 4477 ? DECL_LANG_SPECIFIC (NODE)->u.base.selector == lds_decomp \ 4478 : false) 4479 4480 /* The underlying artificial VAR_DECL for structured binding. */ 4481 #define DECL_DECOMP_BASE(NODE) \ 4482 (LANG_DECL_DECOMP_CHECK (NODE)->base) 4483 4484 /* Nonzero if NODE is an inline VAR_DECL. In C++17, static data members 4485 declared with constexpr specifier are implicitly inline variables. */ 4486 #define DECL_INLINE_VAR_P(NODE) \ 4487 (DECL_VAR_DECLARED_INLINE_P (NODE) \ 4488 || (cxx_dialect >= cxx17 \ 4489 && DECL_DECLARED_CONSTEXPR_P (NODE) \ 4490 && DECL_CLASS_SCOPE_P (NODE))) 4491 4492 /* Nonzero if DECL was declared with '= delete'. */ 4493 #define DECL_DELETED_FN(DECL) \ 4494 (LANG_DECL_FN_CHECK (DECL)->min.base.threadprivate_or_deleted_p) 4495 4496 /* Nonzero if DECL was declared with '= default' (maybe implicitly). */ 4497 #define DECL_DEFAULTED_FN(DECL) \ 4498 (LANG_DECL_FN_CHECK (DECL)->defaulted_p) 4499 4500 /* Nonzero if DECL is explicitly defaulted in the class body. */ 4501 #define DECL_DEFAULTED_IN_CLASS_P(DECL) \ 4502 (DECL_DEFAULTED_FN (DECL) && DECL_INITIALIZED_IN_CLASS_P (DECL)) 4503 /* Nonzero if DECL was defaulted outside the class body. */ 4504 #define DECL_DEFAULTED_OUTSIDE_CLASS_P(DECL) \ 4505 (DECL_DEFAULTED_FN (DECL) \ 4506 && !(DECL_ARTIFICIAL (DECL) || DECL_INITIALIZED_IN_CLASS_P (DECL))) 4507 4508 /* Record whether a typedef for type `int' was actually `signed int'. */ 4509 #define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP) 4510 4511 /* Returns nonzero if DECL has external linkage, as specified by the 4512 language standard. (This predicate may hold even when the 4513 corresponding entity is not actually given external linkage in the 4514 object file; see decl_linkage for details.) */ 4515 #define DECL_EXTERNAL_LINKAGE_P(DECL) \ 4516 (decl_linkage (DECL) == lk_external) 4517 4518 /* Keep these codes in ascending code order. */ 4519 4520 #define INTEGRAL_CODE_P(CODE) \ 4521 ((CODE) == ENUMERAL_TYPE \ 4522 || (CODE) == BOOLEAN_TYPE \ 4523 || (CODE) == INTEGER_TYPE) 4524 4525 /* [basic.fundamental] 4526 4527 Types bool, char, wchar_t, and the signed and unsigned integer types 4528 are collectively called integral types. 4529 4530 Note that INTEGRAL_TYPE_P, as defined in tree.h, allows enumeration 4531 types as well, which is incorrect in C++. Keep these checks in 4532 ascending code order. */ 4533 #define CP_INTEGRAL_TYPE_P(TYPE) \ 4534 (TREE_CODE (TYPE) == BOOLEAN_TYPE \ 4535 || TREE_CODE (TYPE) == INTEGER_TYPE) 4536 4537 /* Returns true if TYPE is an integral or enumeration name. Keep 4538 these checks in ascending code order. */ 4539 #define INTEGRAL_OR_ENUMERATION_TYPE_P(TYPE) \ 4540 (TREE_CODE (TYPE) == ENUMERAL_TYPE || CP_INTEGRAL_TYPE_P (TYPE)) 4541 4542 /* Returns true if TYPE is an integral or unscoped enumeration type. */ 4543 #define INTEGRAL_OR_UNSCOPED_ENUMERATION_TYPE_P(TYPE) \ 4544 (UNSCOPED_ENUM_P (TYPE) || CP_INTEGRAL_TYPE_P (TYPE)) 4545 4546 /* True if the class type TYPE is a literal type. */ 4547 #define CLASSTYPE_LITERAL_P(TYPE) \ 4548 (LANG_TYPE_CLASS_CHECK (TYPE)->is_literal) 4549 4550 /* [basic.fundamental] 4551 4552 Integral and floating types are collectively called arithmetic 4553 types. 4554 4555 As a GNU extension, we also accept complex types. 4556 4557 Keep these checks in ascending code order. */ 4558 #define ARITHMETIC_TYPE_P(TYPE) \ 4559 (CP_INTEGRAL_TYPE_P (TYPE) \ 4560 || SCALAR_FLOAT_TYPE_P (TYPE) \ 4561 || TREE_CODE (TYPE) == COMPLEX_TYPE) 4562 4563 /* [basic.types] 4564 4565 Arithmetic types, enumeration types, pointer types, 4566 pointer-to-member types, and std::nullptr_t are collectively called 4567 scalar types. 4568 4569 Keep these checks in ascending code order. */ 4570 #define SCALAR_TYPE_P(TYPE) \ 4571 (TYPE_PTRDATAMEM_P (TYPE) \ 4572 || TREE_CODE (TYPE) == ENUMERAL_TYPE \ 4573 || ARITHMETIC_TYPE_P (TYPE) \ 4574 || TYPE_PTR_P (TYPE) \ 4575 || TYPE_PTRMEMFUNC_P (TYPE) \ 4576 || NULLPTR_TYPE_P (TYPE)) 4577 4578 /* Determines whether this type is a C++0x scoped enumeration 4579 type. Scoped enumerations types are introduced via "enum class" or 4580 "enum struct", e.g., 4581 4582 enum class Color { 4583 Red, Green, Blue 4584 }; 4585 4586 Scoped enumeration types are different from normal (unscoped) 4587 enumeration types in several ways: 4588 4589 - The enumerators of a scoped enumeration type are only available 4590 within the scope of the enumeration type and not in the 4591 enclosing scope. For example, the Red color can be referred to 4592 with "Color::Red" but not "Red". 4593 4594 - Scoped enumerators and enumerations do not implicitly convert 4595 to integers or 'bool'. 4596 4597 - The underlying type of the enum is well-defined. */ 4598 #define SCOPED_ENUM_P(TYPE) \ 4599 (TREE_CODE (TYPE) == ENUMERAL_TYPE && ENUM_IS_SCOPED (TYPE)) 4600 4601 /* Determine whether this is an unscoped enumeration type. */ 4602 #define UNSCOPED_ENUM_P(TYPE) \ 4603 (TREE_CODE (TYPE) == ENUMERAL_TYPE && !ENUM_IS_SCOPED (TYPE)) 4604 4605 /* Set the flag indicating whether an ENUMERAL_TYPE is a C++0x scoped 4606 enumeration type (1) or a normal (unscoped) enumeration type 4607 (0). */ 4608 #define SET_SCOPED_ENUM_P(TYPE, VAL) \ 4609 (ENUM_IS_SCOPED (TYPE) = (VAL)) 4610 4611 #define SET_OPAQUE_ENUM_P(TYPE, VAL) \ 4612 (ENUM_IS_OPAQUE (TYPE) = (VAL)) 4613 4614 #define OPAQUE_ENUM_P(TYPE) \ 4615 (TREE_CODE (TYPE) == ENUMERAL_TYPE && ENUM_IS_OPAQUE (TYPE)) 4616 4617 /* [dcl.init.aggr] 4618 4619 An aggregate is an array or a class with no user-provided 4620 constructors, no brace-or-equal-initializers for non-static data 4621 members, no private or protected non-static data members, no 4622 base classes, and no virtual functions. 4623 4624 As an extension, we also treat vectors as aggregates. Keep these 4625 checks in ascending code order. */ 4626 #define CP_AGGREGATE_TYPE_P(TYPE) \ 4627 (gnu_vector_type_p (TYPE) \ 4628 || TREE_CODE (TYPE) == ARRAY_TYPE \ 4629 || (CLASS_TYPE_P (TYPE) && COMPLETE_TYPE_P (TYPE) && !CLASSTYPE_NON_AGGREGATE (TYPE))) 4630 4631 /* Nonzero for a class type means that the class type has a 4632 user-declared constructor. */ 4633 #define TYPE_HAS_USER_CONSTRUCTOR(NODE) (TYPE_LANG_FLAG_1 (NODE)) 4634 4635 /* Nonzero means that the FUNCTION_TYPE or METHOD_TYPE has a 4636 late-specified return type. */ 4637 #define TYPE_HAS_LATE_RETURN_TYPE(NODE) \ 4638 (TYPE_LANG_FLAG_2 (FUNC_OR_METHOD_CHECK (NODE))) 4639 4640 /* When appearing in an INDIRECT_REF, it means that the tree structure 4641 underneath is actually a call to a constructor. This is needed 4642 when the constructor must initialize local storage (which can 4643 be automatically destroyed), rather than allowing it to allocate 4644 space from the heap. 4645 4646 When appearing in a SAVE_EXPR, it means that underneath 4647 is a call to a constructor. 4648 4649 When appearing in a CONSTRUCTOR, the expression is an unconverted 4650 compound literal. 4651 4652 When appearing in a CALL_EXPR, it means that it is a call to 4653 a constructor. 4654 4655 When appearing in a FIELD_DECL, it means that this field 4656 has been duly initialized in its constructor. */ 4657 #define TREE_HAS_CONSTRUCTOR(NODE) (TREE_LANG_FLAG_4 (NODE)) 4658 4659 /* True if NODE is a brace-enclosed initializer. */ 4660 #define BRACE_ENCLOSED_INITIALIZER_P(NODE) \ 4661 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_TYPE (NODE) == init_list_type_node) 4662 4663 /* True if NODE is a compound-literal, i.e., a brace-enclosed 4664 initializer cast to a particular type. This is mostly only set during 4665 template parsing; once the initializer has been digested into an actual 4666 value of the type, the expression is represented by a TARGET_EXPR. */ 4667 #define COMPOUND_LITERAL_P(NODE) \ 4668 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_HAS_CONSTRUCTOR (NODE)) 4669 4670 #define EMPTY_CONSTRUCTOR_P(NODE) (TREE_CODE (NODE) == CONSTRUCTOR \ 4671 && vec_safe_is_empty(CONSTRUCTOR_ELTS(NODE))\ 4672 && !TREE_HAS_CONSTRUCTOR (NODE)) 4673 4674 /* True if NODE is a init-list used as a direct-initializer, i.e. 4675 B b{1,2}, not B b({1,2}) or B b = {1,2}. */ 4676 #define CONSTRUCTOR_IS_DIRECT_INIT(NODE) (TREE_LANG_FLAG_0 (CONSTRUCTOR_CHECK (NODE))) 4677 4678 /* True if this CONSTRUCTOR is instantiation-dependent and needs to be 4679 substituted. */ 4680 #define CONSTRUCTOR_IS_DEPENDENT(NODE) \ 4681 (TREE_LANG_FLAG_1 (CONSTRUCTOR_CHECK (NODE))) 4682 4683 /* True if this CONSTRUCTOR should not be used as a variable initializer 4684 because it was loaded from a constexpr variable with mutable fields. */ 4685 #define CONSTRUCTOR_MUTABLE_POISON(NODE) \ 4686 (TREE_LANG_FLAG_2 (CONSTRUCTOR_CHECK (NODE))) 4687 4688 /* True if this typed CONSTRUCTOR represents C99 compound-literal syntax rather 4689 than C++11 functional cast syntax. */ 4690 #define CONSTRUCTOR_C99_COMPOUND_LITERAL(NODE) \ 4691 (TREE_LANG_FLAG_3 (CONSTRUCTOR_CHECK (NODE))) 4692 4693 /* True if this CONSTRUCTOR contains PLACEHOLDER_EXPRs referencing the 4694 CONSTRUCTOR's type not nested inside another CONSTRUCTOR marked with 4695 CONSTRUCTOR_PLACEHOLDER_BOUNDARY. */ 4696 #define CONSTRUCTOR_PLACEHOLDER_BOUNDARY(NODE) \ 4697 (TREE_LANG_FLAG_5 (CONSTRUCTOR_CHECK (NODE))) 4698 4699 #define DIRECT_LIST_INIT_P(NODE) \ 4700 (BRACE_ENCLOSED_INITIALIZER_P (NODE) && CONSTRUCTOR_IS_DIRECT_INIT (NODE)) 4701 4702 /* True if this is a designated initializer (when we allow initializer-clauses 4703 mixed with designated-initializer-clauses set whenever there is at least 4704 one designated-initializer-clause), or a C99 designator. */ 4705 #define CONSTRUCTOR_IS_DESIGNATED_INIT(NODE) \ 4706 (TREE_LANG_FLAG_6 (CONSTRUCTOR_CHECK (NODE))) 4707 4708 /* True if this CONSTRUCTOR comes from a parenthesized list of values, e.g. 4709 A(1, 2, 3). */ 4710 #define CONSTRUCTOR_IS_PAREN_INIT(NODE) \ 4711 (CONSTRUCTOR_CHECK(NODE)->base.private_flag) 4712 4713 /* True if reshape_init built this sub-CONSTRUCTOR to undo the brace elision 4714 of the original CONSTRUCTOR. This flag is used during C++20 aggregate 4715 CTAD. */ 4716 #define CONSTRUCTOR_BRACES_ELIDED_P(NODE) \ 4717 (CONSTRUCTOR_CHECK (NODE)->base.protected_flag) 4718 4719 /* True if NODE represents a conversion for direct-initialization in a 4720 template. Set by perform_implicit_conversion_flags. */ 4721 #define IMPLICIT_CONV_EXPR_DIRECT_INIT(NODE) \ 4722 (TREE_LANG_FLAG_0 (IMPLICIT_CONV_EXPR_CHECK (NODE))) 4723 4724 /* True if NODE represents a dependent conversion of a non-type template 4725 argument. Set by maybe_convert_nontype_argument. */ 4726 #define IMPLICIT_CONV_EXPR_NONTYPE_ARG(NODE) \ 4727 (TREE_LANG_FLAG_1 (IMPLICIT_CONV_EXPR_CHECK (NODE))) 4728 4729 /* True if NODE represents a conversion for braced-init-list in a 4730 template. Set by perform_implicit_conversion_flags. */ 4731 #define IMPLICIT_CONV_EXPR_BRACED_INIT(NODE) \ 4732 (TREE_LANG_FLAG_2 (IMPLICIT_CONV_EXPR_CHECK (NODE))) 4733 4734 /* True if NODE represents a conversion forced to be represented in 4735 maybe_convert_nontype_argument, i.e. for an alias template. */ 4736 #define IMPLICIT_CONV_EXPR_FORCED(NODE) \ 4737 (TREE_LANG_FLAG_3 (IMPLICIT_CONV_EXPR_CHECK (NODE))) 4738 4739 /* Nonzero means that an object of this type cannot be initialized using 4740 an initializer list. */ 4741 #define CLASSTYPE_NON_AGGREGATE(NODE) \ 4742 (LANG_TYPE_CLASS_CHECK (NODE)->non_aggregate) 4743 #define TYPE_NON_AGGREGATE_CLASS(NODE) \ 4744 (CLASS_TYPE_P (NODE) && CLASSTYPE_NON_AGGREGATE (NODE)) 4745 4746 /* Nonzero if there is a non-trivial X::op=(cv X&) for this class. */ 4747 #define TYPE_HAS_COMPLEX_COPY_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_copy_assign) 4748 4749 /* Nonzero if there is a non-trivial X::X(cv X&) for this class. */ 4750 #define TYPE_HAS_COMPLEX_COPY_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_copy_ctor) 4751 4752 /* Nonzero if there is a non-trivial X::op=(X&&) for this class. */ 4753 #define TYPE_HAS_COMPLEX_MOVE_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_move_assign) 4754 4755 /* Nonzero if there is a non-trivial X::X(X&&) for this class. */ 4756 #define TYPE_HAS_COMPLEX_MOVE_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_move_ctor) 4757 4758 /* Nonzero if there is no trivial default constructor for this class. */ 4759 #define TYPE_HAS_COMPLEX_DFLT(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_dflt) 4760 4761 /* Nonzero if TYPE has a trivial destructor. From [class.dtor]: 4762 4763 A destructor is trivial if it is an implicitly declared 4764 destructor and if: 4765 4766 - all of the direct base classes of its class have trivial 4767 destructors, 4768 4769 - for all of the non-static data members of its class that are 4770 of class type (or array thereof), each such class has a 4771 trivial destructor. */ 4772 #define TYPE_HAS_TRIVIAL_DESTRUCTOR(NODE) \ 4773 (!TYPE_HAS_NONTRIVIAL_DESTRUCTOR (NODE)) 4774 4775 /* Nonzero for _TYPE node means that this type does not have a trivial 4776 destructor. Therefore, destroying an object of this type will 4777 involve a call to a destructor. This can apply to objects of 4778 ARRAY_TYPE if the type of the elements needs a destructor. */ 4779 #define TYPE_HAS_NONTRIVIAL_DESTRUCTOR(NODE) \ 4780 (TYPE_LANG_FLAG_4 (NODE)) 4781 4782 /* Nonzero for class type means that the default constructor is trivial. */ 4783 #define TYPE_HAS_TRIVIAL_DFLT(NODE) \ 4784 (TYPE_HAS_DEFAULT_CONSTRUCTOR (NODE) && ! TYPE_HAS_COMPLEX_DFLT (NODE)) 4785 4786 /* Nonzero for class type means that copy initialization of this type can use 4787 a bitwise copy. */ 4788 #define TYPE_HAS_TRIVIAL_COPY_CTOR(NODE) \ 4789 (TYPE_HAS_COPY_CTOR (NODE) && ! TYPE_HAS_COMPLEX_COPY_CTOR (NODE)) 4790 4791 /* Nonzero for class type means that assignment of this type can use 4792 a bitwise copy. */ 4793 #define TYPE_HAS_TRIVIAL_COPY_ASSIGN(NODE) \ 4794 (TYPE_HAS_COPY_ASSIGN (NODE) && ! TYPE_HAS_COMPLEX_COPY_ASSIGN (NODE)) 4795 4796 /* Returns true if NODE is a pointer-to-data-member. */ 4797 #define TYPE_PTRDATAMEM_P(NODE) \ 4798 (TREE_CODE (NODE) == OFFSET_TYPE) 4799 4800 /* Returns true if NODE is a pointer. */ 4801 #define TYPE_PTR_P(NODE) \ 4802 (TREE_CODE (NODE) == POINTER_TYPE) 4803 4804 /* Returns true if NODE is a reference. */ 4805 #define TYPE_REF_P(NODE) \ 4806 (TREE_CODE (NODE) == REFERENCE_TYPE) 4807 4808 /* Returns true if NODE is a pointer or a reference. */ 4809 #define INDIRECT_TYPE_P(NODE) \ 4810 (TYPE_PTR_P (NODE) || TYPE_REF_P (NODE)) 4811 4812 /* Returns true if NODE is an object type: 4813 4814 [basic.types] 4815 4816 An object type is a (possibly cv-qualified) type that is not a 4817 function type, not a reference type, and not a void type. 4818 4819 Keep these checks in ascending order, for speed. */ 4820 #define TYPE_OBJ_P(NODE) \ 4821 (!TYPE_REF_P (NODE) \ 4822 && !VOID_TYPE_P (NODE) \ 4823 && !FUNC_OR_METHOD_TYPE_P (NODE)) 4824 4825 /* Returns true if NODE is a pointer to an object. Keep these checks 4826 in ascending tree code order. */ 4827 #define TYPE_PTROB_P(NODE) \ 4828 (TYPE_PTR_P (NODE) && TYPE_OBJ_P (TREE_TYPE (NODE))) 4829 4830 /* Returns true if NODE is a reference to an object. Keep these checks 4831 in ascending tree code order. */ 4832 #define TYPE_REF_OBJ_P(NODE) \ 4833 (TYPE_REF_P (NODE) && TYPE_OBJ_P (TREE_TYPE (NODE))) 4834 4835 /* Returns true if NODE is a pointer to an object, or a pointer to 4836 void. Keep these checks in ascending tree code order. */ 4837 #define TYPE_PTROBV_P(NODE) \ 4838 (TYPE_PTR_P (NODE) \ 4839 && !FUNC_OR_METHOD_TYPE_P (TREE_TYPE (NODE))) 4840 4841 /* Returns true if NODE is a pointer to function type. */ 4842 #define TYPE_PTRFN_P(NODE) \ 4843 (TYPE_PTR_P (NODE) \ 4844 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE) 4845 4846 /* Returns true if NODE is a reference to function type. */ 4847 #define TYPE_REFFN_P(NODE) \ 4848 (TYPE_REF_P (NODE) \ 4849 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE) 4850 4851 /* Returns true if NODE is a pointer to member function type. */ 4852 #define TYPE_PTRMEMFUNC_P(NODE) \ 4853 (TREE_CODE (NODE) == RECORD_TYPE \ 4854 && TYPE_PTRMEMFUNC_FLAG (NODE)) 4855 4856 #define TYPE_PTRMEMFUNC_FLAG(NODE) \ 4857 (TYPE_LANG_FLAG_2 (RECORD_TYPE_CHECK (NODE))) 4858 4859 /* Returns true if NODE is a pointer-to-member. */ 4860 #define TYPE_PTRMEM_P(NODE) \ 4861 (TYPE_PTRDATAMEM_P (NODE) || TYPE_PTRMEMFUNC_P (NODE)) 4862 4863 /* Returns true if NODE is a pointer or a pointer-to-member. */ 4864 #define TYPE_PTR_OR_PTRMEM_P(NODE) \ 4865 (TYPE_PTR_P (NODE) || TYPE_PTRMEM_P (NODE)) 4866 4867 /* Indicates when overload resolution may resolve to a pointer to 4868 member function. [expr.unary.op]/3 */ 4869 #define PTRMEM_OK_P(NODE) \ 4870 TREE_LANG_FLAG_0 (TREE_CHECK3 ((NODE), ADDR_EXPR, OFFSET_REF, SCOPE_REF)) 4871 4872 /* True if this ADDR_EXPR denotes a function call; that is, it's 4873 fn() rather than &fn. */ 4874 #define ADDR_EXPR_DENOTES_CALL_P(NODE) \ 4875 (ADDR_EXPR_CHECK(NODE)->base.protected_flag) 4876 4877 /* Get the POINTER_TYPE to the METHOD_TYPE associated with this 4878 pointer to member function. TYPE_PTRMEMFUNC_P _must_ be true, 4879 before using this macro. */ 4880 #define TYPE_PTRMEMFUNC_FN_TYPE(NODE) \ 4881 (cp_build_qualified_type (TREE_TYPE (TYPE_FIELDS (NODE)),\ 4882 cp_type_quals (NODE))) 4883 4884 /* As above, but can be used in places that want an lvalue at the expense 4885 of not necessarily having the correct cv-qualifiers. */ 4886 #define TYPE_PTRMEMFUNC_FN_TYPE_RAW(NODE) \ 4887 (TREE_TYPE (TYPE_FIELDS (NODE))) 4888 4889 /* Returns `A' for a type like `int (A::*)(double)' */ 4890 #define TYPE_PTRMEMFUNC_OBJECT_TYPE(NODE) \ 4891 TYPE_METHOD_BASETYPE (TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE))) 4892 4893 /* The canonical internal RECORD_TYPE from the POINTER_TYPE to 4894 METHOD_TYPE. */ 4895 #define TYPE_PTRMEMFUNC_TYPE(NODE) \ 4896 TYPE_LANG_SLOT_1 (NODE) 4897 4898 /* For a pointer-to-member type of the form `T X::*', this is `X'. 4899 For a type like `void (X::*)() const', this type is `X', not `const 4900 X'. To get at the `const X' you have to look at the 4901 TYPE_PTRMEM_POINTED_TO_TYPE; there, the first parameter will have 4902 type `const X*'. */ 4903 #define TYPE_PTRMEM_CLASS_TYPE(NODE) \ 4904 (TYPE_PTRDATAMEM_P (NODE) \ 4905 ? TYPE_OFFSET_BASETYPE (NODE) \ 4906 : TYPE_PTRMEMFUNC_OBJECT_TYPE (NODE)) 4907 4908 /* For a pointer-to-member type of the form `T X::*', this is `T'. */ 4909 #define TYPE_PTRMEM_POINTED_TO_TYPE(NODE) \ 4910 (TYPE_PTRDATAMEM_P (NODE) \ 4911 ? TREE_TYPE (NODE) \ 4912 : TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE))) 4913 4914 /* For a pointer-to-member constant `X::Y' this is the RECORD_TYPE for 4915 `X'. */ 4916 #define PTRMEM_CST_CLASS(NODE) \ 4917 TYPE_PTRMEM_CLASS_TYPE (TREE_TYPE (PTRMEM_CST_CHECK (NODE))) 4918 4919 /* For a pointer-to-member constant `X::Y' this is the _DECL for 4920 `Y'. */ 4921 #define PTRMEM_CST_MEMBER(NODE) \ 4922 (((ptrmem_cst_t)PTRMEM_CST_CHECK (NODE))->member) 4923 4924 /* For a pointer-to-member constant `X::Y' this is a location where 4925 the address of the member has been taken. */ 4926 #define PTRMEM_CST_LOCATION(NODE) \ 4927 (((ptrmem_cst_t)PTRMEM_CST_CHECK (NODE))->locus) 4928 4929 /* The expression in question for a TYPEOF_TYPE. */ 4930 #define TYPEOF_TYPE_EXPR(NODE) (TYPE_VALUES_RAW (TYPEOF_TYPE_CHECK (NODE))) 4931 4932 /* The type in question for an UNDERLYING_TYPE. */ 4933 #define UNDERLYING_TYPE_TYPE(NODE) \ 4934 (TYPE_VALUES_RAW (UNDERLYING_TYPE_CHECK (NODE))) 4935 4936 /* The type in question for BASES. */ 4937 #define BASES_TYPE(NODE) \ 4938 (TYPE_VALUES_RAW (BASES_CHECK (NODE))) 4939 4940 #define BASES_DIRECT(NODE) \ 4941 TREE_LANG_FLAG_0 (BASES_CHECK (NODE)) 4942 4943 /* The expression in question for a DECLTYPE_TYPE. */ 4944 #define DECLTYPE_TYPE_EXPR(NODE) (TYPE_VALUES_RAW (DECLTYPE_TYPE_CHECK (NODE))) 4945 4946 /* Whether the DECLTYPE_TYPE_EXPR of NODE was originally parsed as an 4947 id-expression or a member-access expression. When false, it was 4948 parsed as a full expression. */ 4949 #define DECLTYPE_TYPE_ID_EXPR_OR_MEMBER_ACCESS_P(NODE) \ 4950 (DECLTYPE_TYPE_CHECK (NODE))->type_common.string_flag 4951 4952 /* These flags indicate that we want different semantics from normal 4953 decltype: lambda capture just drops references, 4954 lambda proxies look through implicit dereference. */ 4955 #define DECLTYPE_FOR_LAMBDA_CAPTURE(NODE) \ 4956 TREE_LANG_FLAG_0 (DECLTYPE_TYPE_CHECK (NODE)) 4957 #define DECLTYPE_FOR_LAMBDA_PROXY(NODE) \ 4958 TREE_LANG_FLAG_2 (DECLTYPE_TYPE_CHECK (NODE)) 4959 #define DECLTYPE_FOR_REF_CAPTURE(NODE) \ 4960 TREE_LANG_FLAG_3 (DECLTYPE_TYPE_CHECK (NODE)) 4961 4962 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `extern' was 4963 specified in its declaration. This can also be set for an 4964 erroneously declared PARM_DECL. */ 4965 #define DECL_THIS_EXTERN(NODE) \ 4966 DECL_LANG_FLAG_2 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE)) 4967 4968 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `static' was 4969 specified in its declaration. This can also be set for an 4970 erroneously declared PARM_DECL. */ 4971 #define DECL_THIS_STATIC(NODE) \ 4972 DECL_LANG_FLAG_6 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE)) 4973 4974 /* Nonzero for FIELD_DECL node means that this field is a lambda capture 4975 field for an array of runtime bound. */ 4976 #define DECL_VLA_CAPTURE_P(NODE) \ 4977 DECL_LANG_FLAG_1 (FIELD_DECL_CHECK (NODE)) 4978 4979 /* Nonzero for PARM_DECL node means that this is an array function 4980 parameter, i.e, a[] rather than *a. */ 4981 #define DECL_ARRAY_PARAMETER_P(NODE) \ 4982 DECL_LANG_FLAG_1 (PARM_DECL_CHECK (NODE)) 4983 4984 /* Nonzero for a FIELD_DECL who's NSMDI is currently being 4985 instantiated. */ 4986 #define DECL_INSTANTIATING_NSDMI_P(NODE) \ 4987 DECL_LANG_FLAG_2 (FIELD_DECL_CHECK (NODE)) 4988 4989 /* Nonzero for FIELD_DECL node means that this field is a base class 4990 of the parent object, as opposed to a member field. */ 4991 #define DECL_FIELD_IS_BASE(NODE) \ 4992 DECL_LANG_FLAG_6 (FIELD_DECL_CHECK (NODE)) 4993 4994 /* Nonzero for FIELD_DECL node means that this field is a simple (no 4995 explicit initializer) lambda capture field, making it invisible to 4996 name lookup in unevaluated contexts. */ 4997 #define DECL_NORMAL_CAPTURE_P(NODE) \ 4998 DECL_LANG_FLAG_7 (FIELD_DECL_CHECK (NODE)) 4999 5000 /* Nonzero if TYPE is an anonymous union or struct type. We have to use a 5001 flag for this because "A union for which objects or pointers are 5002 declared is not an anonymous union" [class.union]. */ 5003 #define ANON_AGGR_TYPE_P(NODE) \ 5004 (CLASS_TYPE_P (NODE) && LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr) 5005 #define SET_ANON_AGGR_TYPE_P(NODE) \ 5006 (LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr = 1) 5007 5008 /* Nonzero if TYPE is an anonymous union type. */ 5009 #define ANON_UNION_TYPE_P(NODE) \ 5010 (TREE_CODE (NODE) == UNION_TYPE && ANON_AGGR_TYPE_P (NODE)) 5011 5012 /* For an ANON_AGGR_TYPE_P the single FIELD_DECL it is used with. */ 5013 #define ANON_AGGR_TYPE_FIELD(NODE) \ 5014 (LANG_TYPE_CLASS_CHECK (NODE)->typeinfo_var) 5015 5016 /* Define fields and accessors for nodes representing declared names. */ 5017 5018 /* True if TYPE is an unnamed structured type with a typedef for 5019 linkage purposes. In that case TYPE_NAME and TYPE_STUB_DECL of the 5020 MAIN-VARIANT are different. */ 5021 #define TYPE_WAS_UNNAMED(NODE) \ 5022 (TYPE_NAME (TYPE_MAIN_VARIANT (NODE)) \ 5023 != TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE))) 5024 5025 /* C++: all of these are overloaded! These apply only to TYPE_DECLs. */ 5026 5027 /* The format of each node in the DECL_FRIENDLIST is as follows: 5028 5029 The TREE_PURPOSE will be the name of a function, i.e., an 5030 IDENTIFIER_NODE. The TREE_VALUE will be itself a TREE_LIST, whose 5031 TREE_VALUEs are friends with the given name. */ 5032 #define DECL_FRIENDLIST(NODE) (DECL_INITIAL (NODE)) 5033 #define FRIEND_NAME(LIST) (TREE_PURPOSE (LIST)) 5034 #define FRIEND_DECLS(LIST) (TREE_VALUE (LIST)) 5035 5036 /* The DECL_ACCESS, if non-NULL, is a TREE_LIST. The TREE_PURPOSE of 5037 each node is a type; the TREE_VALUE is the access granted for this 5038 DECL in that type. The DECL_ACCESS is set by access declarations. 5039 For example, if a member that would normally be public in a 5040 derived class is made protected, then the derived class and the 5041 protected_access_node will appear in the DECL_ACCESS for the node. */ 5042 #define DECL_ACCESS(NODE) (LANG_DECL_MIN_CHECK (NODE)->access) 5043 5044 /* Nonzero if the FUNCTION_DECL is a global constructor. */ 5045 #define DECL_GLOBAL_CTOR_P(NODE) \ 5046 (LANG_DECL_FN_CHECK (NODE)->global_ctor_p) 5047 5048 /* Nonzero if the FUNCTION_DECL is a global destructor. */ 5049 #define DECL_GLOBAL_DTOR_P(NODE) \ 5050 (LANG_DECL_FN_CHECK (NODE)->global_dtor_p) 5051 5052 /* Accessor macros for C++ template decl nodes. */ 5053 5054 /* The DECL_TEMPLATE_PARMS are a list. The TREE_PURPOSE of each node 5055 is a INT_CST whose TREE_INT_CST_LOW indicates the level of the 5056 template parameters, with 1 being the outermost set of template 5057 parameters. The TREE_TYPE is TEMPLATE_PARMS_CONSTRAINTS. 5058 The TREE_VALUE is a vector, whose elements are the 5059 template parameters at each level. Each element in the vector is a 5060 TREE_LIST, whose TREE_VALUE is a PARM_DECL (if the parameter is a 5061 non-type parameter), or a TYPE_DECL (if the parameter is a type 5062 parameter) or a TEMPLATE_DECL (if the parameter is a template 5063 parameter). The TREE_PURPOSE is the default value, if any. 5064 The TREE_TYPE is TEMPLATE_PARM_CONSTRAINTS. The 5065 TEMPLATE_PARM_INDEX for the parameter is available as the 5066 DECL_INITIAL (for a PARM_DECL) or as the TREE_TYPE (for a 5067 TYPE_DECL). 5068 5069 FIXME: CONST_CAST_TREE is a hack that hopefully will go away after 5070 tree is converted to C++ class hiearchy. */ 5071 #define DECL_TEMPLATE_PARMS(NODE) \ 5072 ((struct tree_template_decl *)CONST_CAST_TREE (TEMPLATE_DECL_CHECK (NODE)))->arguments 5073 #define DECL_INNERMOST_TEMPLATE_PARMS(NODE) \ 5074 INNERMOST_TEMPLATE_PARMS (DECL_TEMPLATE_PARMS (NODE)) 5075 #define DECL_NTPARMS(NODE) \ 5076 TREE_VEC_LENGTH (DECL_INNERMOST_TEMPLATE_PARMS (NODE)) 5077 /* For function, method, class-data templates. 5078 5079 FIXME: CONST_CAST_TREE is a hack that hopefully will go away after 5080 tree is converted to C++ class hiearchy. */ 5081 #define DECL_TEMPLATE_RESULT(NODE) \ 5082 ((struct tree_template_decl *)CONST_CAST_TREE(TEMPLATE_DECL_CHECK (NODE)))->result 5083 /* For a function template at namespace scope, DECL_TEMPLATE_INSTANTIATIONS 5084 lists all instantiations and specializations of the function so that 5085 tsubst_friend_function can reassign them to another template if we find 5086 that the namespace-scope template is really a partial instantiation of a 5087 friend template. 5088 5089 For a class template the DECL_TEMPLATE_INSTANTIATIONS lists holds 5090 all instantiations and specializations of the class type, including 5091 partial instantiations and partial specializations, so that if we 5092 explicitly specialize a partial instantiation we can walk the list 5093 in maybe_process_partial_specialization and reassign them or complain 5094 as appropriate. 5095 5096 In both cases, the TREE_PURPOSE of each node contains the arguments 5097 used; the TREE_VALUE contains the generated variable. The template 5098 arguments are always complete. For example, given: 5099 5100 template <class T> struct S1 { 5101 template <class U> struct S2 {}; 5102 template <class U> struct S2<U*> {}; 5103 }; 5104 5105 the record for the partial specialization will contain, as its 5106 argument list, { {T}, {U*} }, and will be on the 5107 DECL_TEMPLATE_INSTANTIATIONS list for `template <class T> template 5108 <class U> struct S1<T>::S2'. 5109 5110 This list is not used for other templates. */ 5111 #define DECL_TEMPLATE_INSTANTIATIONS(NODE) \ 5112 DECL_SIZE_UNIT (TEMPLATE_DECL_CHECK (NODE)) 5113 5114 /* For a class template, this list contains the partial 5115 specializations of this template. (Full specializations are not 5116 recorded on this list.) The TREE_PURPOSE holds the arguments used 5117 in the partial specialization (e.g., for `template <class T> struct 5118 S<T*, int>' this will be `T*, int'.) The arguments will also include 5119 any outer template arguments. The TREE_VALUE holds the TEMPLATE_DECL 5120 for the partial specialization. The TREE_TYPE is the _TYPE node for 5121 the partial specialization. 5122 5123 This list is not used for other templates. */ 5124 #define DECL_TEMPLATE_SPECIALIZATIONS(NODE) \ 5125 DECL_SIZE (TEMPLATE_DECL_CHECK (NODE)) 5126 5127 /* Nonzero for a DECL which is actually a template parameter. Keep 5128 these checks in ascending tree code order. */ 5129 #define DECL_TEMPLATE_PARM_P(NODE) \ 5130 (DECL_LANG_FLAG_0 (NODE) \ 5131 && (TREE_CODE (NODE) == CONST_DECL \ 5132 || TREE_CODE (NODE) == PARM_DECL \ 5133 || TREE_CODE (NODE) == TYPE_DECL \ 5134 || TREE_CODE (NODE) == TEMPLATE_DECL)) 5135 5136 #if ENABLE_TREE_CHECKING 5137 inline tree 5138 decl_template_parm_check (const_tree t, const char *f, int l, const char *fn) 5139 { 5140 if (!DECL_TEMPLATE_PARM_P (t)) 5141 tree_check_failed (t, f, l, fn, 0); 5142 return const_cast<tree>(t); 5143 } 5144 #endif 5145 5146 /* Nonzero for a raw template parameter node. */ 5147 #define TEMPLATE_PARM_P(NODE) \ 5148 (TREE_CODE (NODE) == TEMPLATE_TYPE_PARM \ 5149 || TREE_CODE (NODE) == TEMPLATE_TEMPLATE_PARM \ 5150 || TREE_CODE (NODE) == TEMPLATE_PARM_INDEX) 5151 5152 /* Mark NODE as a template parameter. */ 5153 #define SET_DECL_TEMPLATE_PARM_P(NODE) \ 5154 (DECL_LANG_FLAG_0 (NODE) = 1) 5155 5156 /* Nonzero if NODE is a template template parameter. */ 5157 #define DECL_TEMPLATE_TEMPLATE_PARM_P(NODE) \ 5158 (TREE_CODE (NODE) == TEMPLATE_DECL && DECL_TEMPLATE_PARM_P (NODE)) 5159 5160 /* Nonzero for a DECL that represents a function template. */ 5161 #define DECL_FUNCTION_TEMPLATE_P(NODE) \ 5162 (TREE_CODE (NODE) == TEMPLATE_DECL \ 5163 && DECL_TEMPLATE_RESULT (NODE) != NULL_TREE \ 5164 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == FUNCTION_DECL) 5165 5166 /* Nonzero for a DECL that represents a class template or alias 5167 template. */ 5168 #define DECL_TYPE_TEMPLATE_P(NODE) \ 5169 (TREE_CODE (NODE) == TEMPLATE_DECL \ 5170 && DECL_TEMPLATE_RESULT (NODE) != NULL_TREE \ 5171 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == TYPE_DECL) 5172 5173 /* Nonzero for a DECL that represents a class template. */ 5174 #define DECL_CLASS_TEMPLATE_P(NODE) \ 5175 (DECL_TYPE_TEMPLATE_P (NODE) \ 5176 && DECL_IMPLICIT_TYPEDEF_P (DECL_TEMPLATE_RESULT (NODE))) 5177 5178 /* Nonzero for a TEMPLATE_DECL that represents an alias template. */ 5179 #define DECL_ALIAS_TEMPLATE_P(NODE) \ 5180 (DECL_TYPE_TEMPLATE_P (NODE) \ 5181 && !DECL_ARTIFICIAL (DECL_TEMPLATE_RESULT (NODE))) 5182 5183 /* Nonzero for a NODE which declares a type. */ 5184 #define DECL_DECLARES_TYPE_P(NODE) \ 5185 (TREE_CODE (NODE) == TYPE_DECL || DECL_TYPE_TEMPLATE_P (NODE)) 5186 5187 /* Nonzero if NODE declares a function. */ 5188 #define DECL_DECLARES_FUNCTION_P(NODE) \ 5189 (TREE_CODE (NODE) == FUNCTION_DECL || DECL_FUNCTION_TEMPLATE_P (NODE)) 5190 5191 /* Nonzero if NODE is the typedef implicitly generated for a type when 5192 the type is declared. In C++, `struct S {};' is roughly 5193 equivalent to `struct S {}; typedef struct S S;' in C. 5194 DECL_IMPLICIT_TYPEDEF_P will hold for the typedef indicated in this 5195 example. In C++, there is a second implicit typedef for each 5196 class, called the injected-class-name, in the scope of `S' itself, so that 5197 you can say `S::S'. DECL_SELF_REFERENCE_P will hold for that typedef. */ 5198 #define DECL_IMPLICIT_TYPEDEF_P(NODE) \ 5199 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_2 (NODE)) 5200 #define SET_DECL_IMPLICIT_TYPEDEF_P(NODE) \ 5201 (DECL_LANG_FLAG_2 (NODE) = 1) 5202 #define DECL_SELF_REFERENCE_P(NODE) \ 5203 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_4 (NODE)) 5204 #define SET_DECL_SELF_REFERENCE_P(NODE) \ 5205 (DECL_LANG_FLAG_4 (NODE) = 1) 5206 5207 /* A `primary' template is one that has its own template header and is not 5208 a partial specialization. A member function of a class template is a 5209 template, but not primary. A member template is primary. Friend 5210 templates are primary, too. */ 5211 5212 /* Returns the primary template corresponding to these parameters. */ 5213 #define TPARMS_PRIMARY_TEMPLATE(NODE) (TREE_TYPE (TREE_VEC_CHECK (NODE))) 5214 5215 #define DECL_PRIMARY_TEMPLATE(NODE) \ 5216 (TPARMS_PRIMARY_TEMPLATE (DECL_INNERMOST_TEMPLATE_PARMS (NODE))) 5217 5218 /* Returns nonzero if NODE is a primary template. */ 5219 #define PRIMARY_TEMPLATE_P(NODE) (DECL_PRIMARY_TEMPLATE (NODE) == (NODE)) 5220 5221 /* Nonzero iff NODE is a specialization of a template. The value 5222 indicates the type of specializations: 5223 5224 1=implicit instantiation 5225 5226 2=partial or explicit specialization, e.g.: 5227 5228 template <> int min<int> (int, int), 5229 5230 3=explicit instantiation, e.g.: 5231 5232 template int min<int> (int, int); 5233 5234 Note that NODE will be marked as a specialization even if the 5235 template it is instantiating is not a primary template. For 5236 example, given: 5237 5238 template <typename T> struct O { 5239 void f(); 5240 struct I {}; 5241 }; 5242 5243 both O<int>::f and O<int>::I will be marked as instantiations. 5244 5245 If DECL_USE_TEMPLATE is nonzero, then DECL_TEMPLATE_INFO will also 5246 be non-NULL. */ 5247 #define DECL_USE_TEMPLATE(NODE) (DECL_LANG_SPECIFIC (NODE)->u.base.use_template) 5248 5249 /* Like DECL_USE_TEMPLATE, but for class types. */ 5250 #define CLASSTYPE_USE_TEMPLATE(NODE) \ 5251 (LANG_TYPE_CLASS_CHECK (NODE)->use_template) 5252 5253 /* True if NODE is a specialization of a primary template. */ 5254 #define CLASSTYPE_SPECIALIZATION_OF_PRIMARY_TEMPLATE_P(NODE) \ 5255 (CLASS_TYPE_P (NODE) \ 5256 && CLASSTYPE_USE_TEMPLATE (NODE) \ 5257 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE))) 5258 5259 #define DECL_TEMPLATE_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) & 1) 5260 #define CLASSTYPE_TEMPLATE_INSTANTIATION(NODE) \ 5261 (CLASSTYPE_USE_TEMPLATE (NODE) & 1) 5262 5263 #define DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) == 2) 5264 #define SET_DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) = 2) 5265 5266 /* Returns true for an explicit or partial specialization of a class 5267 template. */ 5268 #define CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \ 5269 (CLASSTYPE_USE_TEMPLATE (NODE) == 2) 5270 #define SET_CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \ 5271 (CLASSTYPE_USE_TEMPLATE (NODE) = 2) 5272 5273 #define DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 1) 5274 #define SET_DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 1) 5275 #define CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \ 5276 (CLASSTYPE_USE_TEMPLATE (NODE) == 1) 5277 #define SET_CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \ 5278 (CLASSTYPE_USE_TEMPLATE (NODE) = 1) 5279 5280 #define DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 3) 5281 #define SET_DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 3) 5282 #define CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \ 5283 (CLASSTYPE_USE_TEMPLATE (NODE) == 3) 5284 #define SET_CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \ 5285 (CLASSTYPE_USE_TEMPLATE (NODE) = 3) 5286 5287 /* Nonzero if DECL is a friend function which is an instantiation 5288 from the point of view of the compiler, but not from the point of 5289 view of the language. For example given: 5290 template <class T> struct S { friend void f(T) {}; }; 5291 the declaration of `void f(int)' generated when S<int> is 5292 instantiated will not be a DECL_TEMPLATE_INSTANTIATION, but will be 5293 a DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION. */ 5294 #define DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION(DECL) \ 5295 (DECL_LANG_SPECIFIC (DECL) && DECL_TEMPLATE_INFO (DECL) \ 5296 && !DECL_USE_TEMPLATE (DECL)) 5297 5298 /* Nonzero if DECL is a function generated from a function 'temploid', 5299 i.e. template, member of class template, or dependent friend. */ 5300 #define DECL_TEMPLOID_INSTANTIATION(DECL) \ 5301 (DECL_TEMPLATE_INSTANTIATION (DECL) \ 5302 || DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (DECL)) 5303 5304 /* Nonzero if DECL is either defined implicitly by the compiler or 5305 generated from a temploid. */ 5306 #define DECL_GENERATED_P(DECL) \ 5307 (DECL_TEMPLOID_INSTANTIATION (DECL) || DECL_DEFAULTED_FN (DECL)) 5308 5309 /* Nonzero iff we are currently processing a declaration for an 5310 entity with its own template parameter list, and which is not a 5311 full specialization. */ 5312 #define PROCESSING_REAL_TEMPLATE_DECL_P() \ 5313 (!processing_template_parmlist \ 5314 && current_template_depth > template_class_depth (current_scope ())) 5315 5316 /* Nonzero if this VAR_DECL or FUNCTION_DECL has already been 5317 instantiated, i.e. its definition has been generated from the 5318 pattern given in the template. */ 5319 #define DECL_TEMPLATE_INSTANTIATED(NODE) \ 5320 DECL_LANG_FLAG_1 (VAR_OR_FUNCTION_DECL_CHECK (NODE)) 5321 5322 /* We know what we're doing with this decl now. */ 5323 #define DECL_INTERFACE_KNOWN(NODE) DECL_LANG_FLAG_5 (NODE) 5324 5325 /* DECL_EXTERNAL must be set on a decl until the decl is actually emitted, 5326 so that assemble_external will work properly. So we have this flag to 5327 tell us whether the decl is really not external. 5328 5329 This flag does not indicate whether or not the decl is defined in the 5330 current translation unit; it indicates whether or not we should emit the 5331 decl at the end of compilation if it is defined and needed. */ 5332 #define DECL_NOT_REALLY_EXTERN(NODE) \ 5333 (DECL_LANG_SPECIFIC (NODE)->u.base.not_really_extern) 5334 5335 #define DECL_REALLY_EXTERN(NODE) \ 5336 (DECL_EXTERNAL (NODE) \ 5337 && (!DECL_LANG_SPECIFIC (NODE) || !DECL_NOT_REALLY_EXTERN (NODE))) 5338 5339 /* A thunk is a stub function. 5340 5341 A thunk is an alternate entry point for an ordinary FUNCTION_DECL. 5342 The address of the ordinary FUNCTION_DECL is given by the 5343 DECL_INITIAL, which is always an ADDR_EXPR whose operand is a 5344 FUNCTION_DECL. The job of the thunk is to either adjust the this 5345 pointer before transferring control to the FUNCTION_DECL, or call 5346 FUNCTION_DECL and then adjust the result value. Note, the result 5347 pointer adjusting thunk must perform a call to the thunked 5348 function, (or be implemented via passing some invisible parameter 5349 to the thunked function, which is modified to perform the 5350 adjustment just before returning). 5351 5352 A thunk may perform either, or both, of the following operations: 5353 5354 o Adjust the this or result pointer by a constant offset. 5355 o Adjust the this or result pointer by looking up a vcall or vbase offset 5356 in the vtable. 5357 5358 A this pointer adjusting thunk converts from a base to a derived 5359 class, and hence adds the offsets. A result pointer adjusting thunk 5360 converts from a derived class to a base, and hence subtracts the 5361 offsets. If both operations are performed, then the constant 5362 adjustment is performed first for this pointer adjustment and last 5363 for the result pointer adjustment. 5364 5365 The constant adjustment is given by THUNK_FIXED_OFFSET. If the 5366 vcall or vbase offset is required, THUNK_VIRTUAL_OFFSET is 5367 used. For this pointer adjusting thunks, it is the vcall offset 5368 into the vtable. For result pointer adjusting thunks it is the 5369 binfo of the virtual base to convert to. Use that binfo's vbase 5370 offset. 5371 5372 It is possible to have equivalent covariant thunks. These are 5373 distinct virtual covariant thunks whose vbase offsets happen to 5374 have the same value. THUNK_ALIAS is used to pick one as the 5375 canonical thunk, which will get all the this pointer adjusting 5376 thunks attached to it. */ 5377 5378 /* An integer indicating how many bytes should be subtracted from the 5379 this or result pointer when this function is called. */ 5380 #define THUNK_FIXED_OFFSET(DECL) \ 5381 (DECL_LANG_SPECIFIC (THUNK_FUNCTION_CHECK (DECL))->u.fn.u5.fixed_offset) 5382 5383 /* A tree indicating how to perform the virtual adjustment. For a this 5384 adjusting thunk it is the number of bytes to be added to the vtable 5385 to find the vcall offset. For a result adjusting thunk, it is the 5386 binfo of the relevant virtual base. If NULL, then there is no 5387 virtual adjust. (The vptr is always located at offset zero from 5388 the this or result pointer.) (If the covariant type is within the 5389 class hierarchy being laid out, the vbase index is not yet known 5390 at the point we need to create the thunks, hence the need to use 5391 binfos.) */ 5392 5393 #define THUNK_VIRTUAL_OFFSET(DECL) \ 5394 (LANG_DECL_MIN_CHECK (FUNCTION_DECL_CHECK (DECL))->access) 5395 5396 /* A thunk which is equivalent to another thunk. */ 5397 #define THUNK_ALIAS(DECL) \ 5398 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->u.min.template_info) 5399 5400 /* For thunk NODE, this is the FUNCTION_DECL thunked to. It is 5401 possible for the target to be a thunk too. */ 5402 #define THUNK_TARGET(NODE) \ 5403 (LANG_DECL_FN_CHECK (NODE)->befriending_classes) 5404 5405 /* True for a SCOPE_REF iff the "template" keyword was used to 5406 indicate that the qualified name denotes a template. */ 5407 #define QUALIFIED_NAME_IS_TEMPLATE(NODE) \ 5408 (TREE_LANG_FLAG_1 (SCOPE_REF_CHECK (NODE))) 5409 5410 /* [coroutines] 5411 */ 5412 5413 /* True if NODE is a co-routine FUNCTION_DECL. */ 5414 #define DECL_COROUTINE_P(NODE) \ 5415 (LANG_DECL_FN_CHECK (DECL_COMMON_CHECK (NODE))->coroutine_p) 5416 5417 /* For a FUNCTION_DECL of a coroutine, this holds the ACTOR helper function 5418 decl. */ 5419 #define DECL_ACTOR_FN(NODE) \ 5420 (coro_get_actor_function ((NODE))) 5421 5422 /* For a FUNCTION_DECL of a coroutine, this holds the DESTROY helper function 5423 decl. */ 5424 #define DECL_DESTROY_FN(NODE) \ 5425 (coro_get_destroy_function ((NODE))) 5426 5427 /* For a FUNCTION_DECL of a coroutine helper (ACTOR or DESTROY), this points 5428 back to the original (ramp) function. */ 5429 #define DECL_RAMP_FN(NODE) \ 5430 (coro_get_ramp_function (NODE)) 5431 5432 /* True for an OMP_ATOMIC that has dependent parameters. These are stored 5433 as an expr in operand 1, and integer_zero_node or clauses in operand 0. */ 5434 #define OMP_ATOMIC_DEPENDENT_P(NODE) \ 5435 (TREE_CODE (TREE_OPERAND (OMP_ATOMIC_CHECK (NODE), 0)) == INTEGER_CST \ 5436 || TREE_CODE (TREE_OPERAND (OMP_ATOMIC_CHECK (NODE), 0)) == OMP_CLAUSE) 5437 5438 /* Used while gimplifying continue statements bound to OMP_FOR nodes. */ 5439 #define OMP_FOR_GIMPLIFYING_P(NODE) \ 5440 (TREE_LANG_FLAG_0 (OMP_LOOPING_CHECK (NODE))) 5441 5442 /* A language-specific token attached to the OpenMP data clauses to 5443 hold code (or code fragments) related to ctors, dtors, and op=. 5444 See semantics.cc for details. */ 5445 #define CP_OMP_CLAUSE_INFO(NODE) \ 5446 TREE_TYPE (OMP_CLAUSE_RANGE_CHECK (NODE, OMP_CLAUSE_PRIVATE, \ 5447 OMP_CLAUSE__CONDTEMP_)) 5448 5449 /* Nonzero if this transaction expression's body contains statements. */ 5450 #define TRANSACTION_EXPR_IS_STMT(NODE) \ 5451 TREE_LANG_FLAG_0 (TRANSACTION_EXPR_CHECK (NODE)) 5452 5453 /* These macros provide convenient access to the various _STMT nodes 5454 created when parsing template declarations. */ 5455 #define TRY_STMTS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 0) 5456 #define TRY_HANDLERS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 1) 5457 5458 #define EH_SPEC_STMTS(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 0) 5459 #define EH_SPEC_RAISES(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 1) 5460 5461 #define USING_STMT_NAMESPACE(NODE) TREE_OPERAND (USING_STMT_CHECK (NODE), 0) 5462 5463 /* Nonzero if this try block is a function try block. */ 5464 #define FN_TRY_BLOCK_P(NODE) TREE_LANG_FLAG_3 (TRY_BLOCK_CHECK (NODE)) 5465 #define HANDLER_PARMS(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 0) 5466 #define HANDLER_BODY(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 1) 5467 #define HANDLER_TYPE(NODE) TREE_TYPE (HANDLER_CHECK (NODE)) 5468 5469 /* CLEANUP_STMT accessors. The statement(s) covered, the cleanup to run 5470 and the VAR_DECL for which this cleanup exists. */ 5471 #define CLEANUP_BODY(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 0) 5472 #define CLEANUP_EXPR(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 1) 5473 #define CLEANUP_DECL(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 2) 5474 5475 /* IF_STMT accessors. These give access to the condition of the if 5476 statement, the then block of the if statement, and the else block 5477 of the if statement if it exists. */ 5478 #define IF_COND(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 0) 5479 #define THEN_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 1) 5480 #define ELSE_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 2) 5481 #define IF_SCOPE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 3) 5482 #define IF_STMT_CONSTEXPR_P(NODE) TREE_LANG_FLAG_0 (IF_STMT_CHECK (NODE)) 5483 #define IF_STMT_CONSTEVAL_P(NODE) TREE_LANG_FLAG_2 (IF_STMT_CHECK (NODE)) 5484 5485 /* Like PACK_EXPANSION_EXTRA_ARGS, for constexpr if. IF_SCOPE is used while 5486 building an IF_STMT; IF_STMT_EXTRA_ARGS is used after it is complete. */ 5487 #define IF_STMT_EXTRA_ARGS(NODE) IF_SCOPE (NODE) 5488 5489 /* RANGE_FOR_STMT accessors. These give access to the declarator, 5490 expression, body, and scope of the statement, respectively. */ 5491 #define RANGE_FOR_DECL(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 0) 5492 #define RANGE_FOR_EXPR(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 1) 5493 #define RANGE_FOR_BODY(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 2) 5494 #define RANGE_FOR_SCOPE(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 3) 5495 #define RANGE_FOR_UNROLL(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 4) 5496 #define RANGE_FOR_INIT_STMT(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 5) 5497 #define RANGE_FOR_IVDEP(NODE) TREE_LANG_FLAG_6 (RANGE_FOR_STMT_CHECK (NODE)) 5498 #define RANGE_FOR_NOVECTOR(NODE) TREE_LANG_FLAG_5 (RANGE_FOR_STMT_CHECK (NODE)) 5499 5500 /* STMT_EXPR accessor. */ 5501 #define STMT_EXPR_STMT(NODE) TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0) 5502 5503 /* EXPR_STMT accessor. This gives the expression associated with an 5504 expression statement. */ 5505 #define EXPR_STMT_EXPR(NODE) TREE_OPERAND (EXPR_STMT_CHECK (NODE), 0) 5506 5507 /* True if this TARGET_EXPR was created by build_cplus_new, and so we can 5508 discard it if it isn't useful. */ 5509 #define TARGET_EXPR_IMPLICIT_P(NODE) \ 5510 TREE_LANG_FLAG_0 (TARGET_EXPR_CHECK (NODE)) 5511 5512 /* True if this TARGET_EXPR is the result of list-initialization of a 5513 temporary. */ 5514 #define TARGET_EXPR_LIST_INIT_P(NODE) \ 5515 TREE_LANG_FLAG_1 (TARGET_EXPR_CHECK (NODE)) 5516 5517 /* True if this TARGET_EXPR expresses direct-initialization of an object 5518 to be named later. */ 5519 #define TARGET_EXPR_DIRECT_INIT_P(NODE) \ 5520 TREE_LANG_FLAG_2 (TARGET_EXPR_CHECK (NODE)) 5521 5522 /* True if we expect this TARGET_EXPR to be used as an initializer, not to 5523 materialize as a temporary. */ 5524 #define TARGET_EXPR_ELIDING_P(NODE) \ 5525 TREE_LANG_FLAG_3 (TARGET_EXPR_CHECK (NODE)) 5526 5527 /* True if NODE is a TARGET_EXPR that just expresses a copy of its INITIAL; if 5528 the initializer has void type, it's doing something more complicated. */ 5529 #define SIMPLE_TARGET_EXPR_P(NODE) \ 5530 (TREE_CODE (NODE) == TARGET_EXPR \ 5531 && TARGET_EXPR_INITIAL (NODE) \ 5532 && !VOID_TYPE_P (TREE_TYPE (TARGET_EXPR_INITIAL (NODE)))) 5533 5534 /* True if T is a TARGET_EXPR for which we'll need to replace_decl to use it as 5535 an initializer. */ 5536 inline bool 5537 target_expr_needs_replace (tree t) 5538 { 5539 if (!t || TREE_CODE (t) != TARGET_EXPR) 5540 return false; 5541 tree init = TARGET_EXPR_INITIAL (t); 5542 if (!init || !VOID_TYPE_P (TREE_TYPE (init))) 5543 return false; 5544 while (TREE_CODE (init) == COMPOUND_EXPR) 5545 init = TREE_OPERAND (init, 1); 5546 return (TREE_CODE (init) != AGGR_INIT_EXPR 5547 && TREE_CODE (init) != VEC_INIT_EXPR); 5548 } 5549 5550 /* True if EXPR expresses direct-initialization of a TYPE. */ 5551 #define DIRECT_INIT_EXPR_P(TYPE,EXPR) \ 5552 (TREE_CODE (EXPR) == TARGET_EXPR && TREE_LANG_FLAG_2 (EXPR) \ 5553 && same_type_ignoring_top_level_qualifiers_p (TYPE, TREE_TYPE (EXPR))) 5554 5555 /* True if this CONVERT_EXPR is for a conversion to virtual base in 5556 an NSDMI, and should be re-evaluated when used in a constructor. */ 5557 #define CONVERT_EXPR_VBASE_PATH(NODE) \ 5558 TREE_LANG_FLAG_0 (CONVERT_EXPR_CHECK (NODE)) 5559 5560 /* True if SIZEOF_EXPR argument is type. */ 5561 #define SIZEOF_EXPR_TYPE_P(NODE) \ 5562 TREE_LANG_FLAG_0 (SIZEOF_EXPR_CHECK (NODE)) 5563 5564 /* True if the ALIGNOF_EXPR was spelled "alignof". */ 5565 #define ALIGNOF_EXPR_STD_P(NODE) \ 5566 TREE_LANG_FLAG_0 (ALIGNOF_EXPR_CHECK (NODE)) 5567 5568 /* OMP_DEPOBJ accessors. These give access to the depobj expression of the 5569 #pragma omp depobj directive and the clauses, respectively. If 5570 OMP_DEPOBJ_CLAUSES is INTEGER_CST, it is instead the update clause kind 5571 or OMP_CLAUSE_DEPEND_LAST for destroy clause. */ 5572 #define OMP_DEPOBJ_DEPOBJ(NODE) TREE_OPERAND (OMP_DEPOBJ_CHECK (NODE), 0) 5573 #define OMP_DEPOBJ_CLAUSES(NODE) TREE_OPERAND (OMP_DEPOBJ_CHECK (NODE), 1) 5574 5575 /* An enumeration of the kind of tags that C++ accepts. */ 5576 enum tag_types { 5577 none_type = 0, /* Not a tag type. */ 5578 record_type, /* "struct" types. */ 5579 class_type, /* "class" types. */ 5580 union_type, /* "union" types. */ 5581 enum_type, /* "enum" types. */ 5582 typename_type, /* "typename" types. */ 5583 scope_type /* namespace or tagged type name followed by :: */ 5584 }; 5585 5586 /* The various kinds of lvalues we distinguish. */ 5587 enum cp_lvalue_kind_flags { 5588 clk_none = 0, /* Things that are not an lvalue. */ 5589 clk_ordinary = 1, /* An ordinary lvalue. */ 5590 clk_rvalueref = 2,/* An xvalue (rvalue formed using an rvalue reference) */ 5591 clk_class = 4, /* A prvalue of class or array type. */ 5592 clk_bitfield = 8, /* An lvalue for a bit-field. */ 5593 clk_packed = 16, /* An lvalue for a packed field. */ 5594 clk_implicit_rval = 1<<5, /* An lvalue being treated as an xvalue. */ 5595 clk_mergeable = 1<<6 5596 }; 5597 5598 /* This type is used for parameters and variables which hold 5599 combinations of the flags in enum cp_lvalue_kind_flags. */ 5600 typedef int cp_lvalue_kind; 5601 5602 /* Various kinds of template specialization, instantiation, etc. */ 5603 enum tmpl_spec_kind { 5604 tsk_none, /* Not a template at all. */ 5605 tsk_invalid_member_spec, /* An explicit member template 5606 specialization, but the enclosing 5607 classes have not all been explicitly 5608 specialized. */ 5609 tsk_invalid_expl_inst, /* An explicit instantiation containing 5610 template parameter lists. */ 5611 tsk_excessive_parms, /* A template declaration with too many 5612 template parameter lists. */ 5613 tsk_insufficient_parms, /* A template declaration with too few 5614 parameter lists. */ 5615 tsk_template, /* A template declaration. */ 5616 tsk_expl_spec, /* An explicit specialization. */ 5617 tsk_expl_inst /* An explicit instantiation. */ 5618 }; 5619 5620 /* The various kinds of access. BINFO_ACCESS depends on these being 5621 two bit quantities. The numerical values are important; they are 5622 used to initialize RTTI data structures, so changing them changes 5623 the ABI. */ 5624 enum access_kind { 5625 ak_none = 0, /* Inaccessible. */ 5626 ak_public = 1, /* Accessible, as a `public' thing. */ 5627 ak_protected = 2, /* Accessible, as a `protected' thing. */ 5628 ak_private = 3 /* Accessible, as a `private' thing. */ 5629 }; 5630 5631 /* The various kinds of special functions. If you add to this list, 5632 you should update special_function_p as well. */ 5633 enum special_function_kind { 5634 sfk_none = 0, /* Not a special function. This enumeral 5635 must have value zero; see 5636 special_function_p. */ 5637 /* The following are ordered, for use by member synthesis fns. */ 5638 sfk_destructor, /* A destructor. */ 5639 sfk_constructor, /* A constructor. */ 5640 sfk_inheriting_constructor, /* An inheriting constructor */ 5641 sfk_copy_constructor, /* A copy constructor. */ 5642 sfk_move_constructor, /* A move constructor. */ 5643 sfk_copy_assignment, /* A copy assignment operator. */ 5644 sfk_move_assignment, /* A move assignment operator. */ 5645 /* The following are unordered. */ 5646 sfk_complete_destructor, /* A destructor for complete objects. */ 5647 sfk_base_destructor, /* A destructor for base subobjects. */ 5648 sfk_deleting_destructor, /* A destructor for complete objects that 5649 deletes the object after it has been 5650 destroyed. */ 5651 sfk_conversion, /* A conversion operator. */ 5652 sfk_deduction_guide, /* A class template deduction guide. */ 5653 sfk_comparison, /* A comparison operator (e.g. ==, <, <=>). */ 5654 sfk_virtual_destructor /* Used by member synthesis fns. */ 5655 }; 5656 5657 /* The various kinds of linkage. From [basic.link], 5658 5659 A name is said to have linkage when it might denote the same 5660 object, reference, function, type, template, namespace or value 5661 as a name introduced in another scope: 5662 5663 -- When a name has external linkage, the entity it denotes can 5664 be referred to from scopes of other translation units or from 5665 other scopes of the same translation unit. 5666 5667 -- When a name has internal linkage, the entity it denotes can 5668 be referred to by names from other scopes in the same 5669 translation unit. 5670 5671 -- When a name has no linkage, the entity it denotes cannot be 5672 referred to by names from other scopes. */ 5673 5674 enum linkage_kind { 5675 lk_none, /* No linkage. */ 5676 lk_internal, /* Internal linkage. */ 5677 lk_external /* External linkage. */ 5678 }; 5679 5680 enum duration_kind { 5681 dk_static, 5682 dk_thread, 5683 dk_auto, 5684 dk_dynamic 5685 }; 5686 5687 /* Bitmask flags to control type substitution. */ 5688 enum tsubst_flags { 5689 tf_none = 0, /* nothing special */ 5690 tf_error = 1 << 0, /* give error messages */ 5691 tf_warning = 1 << 1, /* give warnings too */ 5692 tf_ignore_bad_quals = 1 << 2, /* ignore bad cvr qualifiers */ 5693 tf_keep_type_decl = 1 << 3, /* retain typedef type decls 5694 (make_typename_type use) */ 5695 tf_ptrmem_ok = 1 << 4, /* pointers to member ok (internal 5696 instantiate_type use) */ 5697 tf_user = 1 << 5, /* found template must be a user template 5698 (lookup_template_class use) */ 5699 tf_conv = 1 << 6, /* We are determining what kind of 5700 conversion might be permissible, 5701 not actually performing the 5702 conversion. */ 5703 tf_decltype = 1 << 7, /* We are the operand of decltype. 5704 Used to implement the special rules 5705 for calls in decltype (5.2.2/11). */ 5706 tf_partial = 1 << 8, /* Doing initial explicit argument 5707 substitution in fn_type_unification. */ 5708 tf_fndecl_type = 1 << 9, /* Substituting the type of a function 5709 declaration. */ 5710 tf_no_cleanup = 1 << 10, /* Do not build a cleanup 5711 (build_target_expr and friends) */ 5712 tf_norm = 1 << 11, /* Build diagnostic information during 5713 constraint normalization. */ 5714 tf_tst_ok = 1 << 12, /* Allow a typename-specifier to name 5715 a template (C++17 or later). */ 5716 tf_dguide = 1 << 13, /* Building a deduction guide from a ctor. */ 5717 tf_qualifying_scope = 1 << 14, /* Substituting the LHS of the :: operator. 5718 Affects TYPENAME_TYPE resolution from 5719 make_typename_type. */ 5720 tf_no_name_lookup = 1 << 15, /* Don't look up the terminal name of an 5721 outermost id-expression, or resolve its 5722 constituent template-ids or qualified-ids. */ 5723 /* Convenient substitution flags combinations. */ 5724 tf_warning_or_error = tf_warning | tf_error 5725 }; 5726 5727 /* This type is used for parameters and variables which hold 5728 combinations of the flags in enum tsubst_flags. */ 5729 typedef int tsubst_flags_t; 5730 5731 /* The kind of checking we can do looking in a class hierarchy. */ 5732 enum base_access_flags { 5733 ba_any = 0, /* Do not check access, allow an ambiguous base, 5734 prefer a non-virtual base */ 5735 ba_unique = 1 << 0, /* Must be a unique base. */ 5736 ba_check_bit = 1 << 1, /* Check access. */ 5737 ba_check = ba_unique | ba_check_bit, 5738 ba_ignore_scope = 1 << 2 /* Ignore access allowed by local scope. */ 5739 }; 5740 5741 /* This type is used for parameters and variables which hold 5742 combinations of the flags in enum base_access_flags. */ 5743 typedef int base_access; 5744 5745 /* The various kinds of access check during parsing. */ 5746 enum deferring_kind { 5747 dk_no_deferred = 0, /* Check access immediately */ 5748 dk_deferred = 1, /* Deferred check */ 5749 dk_no_check = 2 /* No access check */ 5750 }; 5751 5752 /* The kind of base we can find, looking in a class hierarchy. 5753 Values <0 indicate we failed. */ 5754 enum base_kind { 5755 bk_inaccessible = -3, /* The base is inaccessible */ 5756 bk_ambig = -2, /* The base is ambiguous */ 5757 bk_not_base = -1, /* It is not a base */ 5758 bk_same_type = 0, /* It is the same type */ 5759 bk_proper_base = 1, /* It is a proper base */ 5760 bk_via_virtual = 2 /* It is a proper base, but via a virtual 5761 path. This might not be the canonical 5762 binfo. */ 5763 }; 5764 5765 /* Node for "pointer to (virtual) function". 5766 This may be distinct from ptr_type_node so gdb can distinguish them. */ 5767 #define vfunc_ptr_type_node vtable_entry_type 5768 5769 5770 /* For building calls to `delete'. */ 5771 extern GTY(()) tree integer_two_node; 5772 5773 /* The number of function bodies which we are currently processing. 5774 (Zero if we are at namespace scope, one inside the body of a 5775 function, two inside the body of a function in a local class, etc.) */ 5776 extern int function_depth; 5777 5778 /* Nonzero if we are inside spec_hasher::equal, which affects 5779 comparison of PARM_DECLs in cp_tree_equal. */ 5780 extern int comparing_specializations; 5781 5782 /* Nonzero if we want different dependent aliases to compare as unequal. 5783 FIXME we should always do this except during deduction/ordering. */ 5784 extern int comparing_dependent_aliases; 5785 5786 /* Nonzero if we want to consider different member expressions to compare 5787 equal if they designate the same entity. This is set when comparing 5788 contract conditions of overrides. */ 5789 extern bool comparing_override_contracts; 5790 5791 /* In parser.cc. */ 5792 5793 /* Nonzero if we are parsing an unevaluated operand: an operand to 5794 sizeof, typeof, or alignof. This is a count since operands to 5795 sizeof can be nested. */ 5796 5797 extern int cp_unevaluated_operand; 5798 5799 /* RAII class used to inhibit the evaluation of operands during parsing 5800 and template instantiation. Evaluation warnings are also inhibited. */ 5801 5802 class cp_unevaluated 5803 { 5804 public: 5805 cp_unevaluated (); 5806 ~cp_unevaluated (); 5807 }; 5808 5809 /* The reverse: an RAII class used for nested contexts that are evaluated even 5810 if the enclosing context is not. */ 5811 5812 class cp_evaluated 5813 { 5814 public: 5815 int uneval; 5816 int inhibit; 5817 cp_evaluated (bool reset = true) 5818 : uneval(cp_unevaluated_operand), inhibit(c_inhibit_evaluation_warnings) 5819 { if (reset) 5820 cp_unevaluated_operand = c_inhibit_evaluation_warnings = 0; } 5821 ~cp_evaluated () 5822 { cp_unevaluated_operand = uneval; 5823 c_inhibit_evaluation_warnings = inhibit; } 5824 }; 5825 5826 /* in pt.cc */ 5827 5828 /* These values are used for the `STRICT' parameter to type_unification and 5829 fn_type_unification. Their meanings are described with the 5830 documentation for fn_type_unification. */ 5831 5832 enum unification_kind_t { 5833 DEDUCE_CALL, 5834 DEDUCE_CONV, 5835 DEDUCE_EXACT 5836 }; 5837 5838 // An RAII class used to create a new pointer map for local 5839 // specializations. When the stack goes out of scope, the 5840 // previous pointer map is restored. 5841 enum lss_policy { lss_blank, lss_copy, lss_nop }; 5842 class local_specialization_stack 5843 { 5844 public: 5845 local_specialization_stack (lss_policy = lss_blank); 5846 ~local_specialization_stack (); 5847 5848 hash_map<tree, tree> *saved; 5849 }; 5850 5851 /* Entry in the specialization hash table. */ 5852 struct GTY((for_user)) spec_entry 5853 { 5854 tree tmpl; /* The general template this is a specialization of. */ 5855 tree args; /* The args for this (maybe-partial) specialization. */ 5856 tree spec; /* The specialization itself. */ 5857 }; 5858 5859 /* in class.cc */ 5860 5861 extern int current_class_depth; 5862 5863 /* in decl.cc */ 5864 5865 /* An array of static vars & fns. */ 5866 extern GTY(()) vec<tree, va_gc> *static_decls; 5867 5868 /* An array of vtable-needing types that have no key function, or have 5869 an emitted key function. */ 5870 extern GTY(()) vec<tree, va_gc> *keyed_classes; 5871 5872 /* Here's where we control how name mangling takes place. */ 5874 5875 /* Cannot use '$' up front, because this confuses gdb 5876 (names beginning with '$' are gdb-local identifiers). 5877 5878 Note that all forms in which the '$' is significant are long enough 5879 for direct indexing (meaning that if we know there is a '$' 5880 at a particular location, we can index into the string at 5881 any other location that provides distinguishing characters). */ 5882 5883 /* Define NO_DOT_IN_LABEL in your favorite tm file if your assembler 5884 doesn't allow '.' in symbol names. */ 5885 #ifndef NO_DOT_IN_LABEL 5886 5887 #define JOINER '.' 5888 #define JOIN_STR "." 5889 5890 #define AUTO_TEMP_NAME "_.tmp_" 5891 #define VFIELD_BASE ".vf" 5892 #define VFIELD_NAME "_vptr." 5893 #define VFIELD_NAME_FORMAT "_vptr.%s" 5894 5895 #else /* NO_DOT_IN_LABEL */ 5896 5897 #ifndef NO_DOLLAR_IN_LABEL 5898 5899 #define JOINER '$' 5900 #define JOIN_STR "$" 5901 5902 #define AUTO_TEMP_NAME "_$tmp_" 5903 #define VFIELD_BASE "$vf" 5904 #define VFIELD_NAME "_vptr$" 5905 #define VFIELD_NAME_FORMAT "_vptr$%s" 5906 5907 #else /* NO_DOLLAR_IN_LABEL */ 5908 5909 #define JOIN_STR "_" 5910 5911 #define VTABLE_NAME "__vt_" 5912 #define VTABLE_NAME_P(ID_NODE) \ 5913 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VTABLE_NAME, \ 5914 sizeof (VTABLE_NAME) - 1)) 5915 #define VFIELD_BASE "__vfb" 5916 #define VFIELD_NAME "__vptr_" 5917 #define VFIELD_NAME_P(ID_NODE) \ 5918 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, \ 5919 sizeof (VFIELD_NAME) - 1)) 5920 #define VFIELD_NAME_FORMAT "__vptr_%s" 5921 5922 #endif /* NO_DOLLAR_IN_LABEL */ 5923 #endif /* NO_DOT_IN_LABEL */ 5924 5925 #define UDLIT_OP_ANSI_PREFIX "operator\"\"" 5926 #define UDLIT_OP_ANSI_FORMAT UDLIT_OP_ANSI_PREFIX "%s" 5927 #define UDLIT_OP_MANGLED_PREFIX "li" 5928 #define UDLIT_OP_MANGLED_FORMAT UDLIT_OP_MANGLED_PREFIX "%s" 5929 #define UDLIT_OPER_P(ID_NODE) \ 5930 (!strncmp (IDENTIFIER_POINTER (ID_NODE), \ 5931 UDLIT_OP_ANSI_PREFIX, \ 5932 sizeof (UDLIT_OP_ANSI_PREFIX) - 1)) 5933 #define UDLIT_OP_SUFFIX(ID_NODE) \ 5934 (IDENTIFIER_POINTER (ID_NODE) + sizeof (UDLIT_OP_ANSI_PREFIX) - 1) 5935 5936 #if !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) 5937 5938 #define VTABLE_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == 'v' \ 5939 && IDENTIFIER_POINTER (ID_NODE)[2] == 't' \ 5940 && IDENTIFIER_POINTER (ID_NODE)[3] == JOINER) 5941 5942 #define VFIELD_NAME_P(ID_NODE) \ 5943 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, sizeof(VFIELD_NAME)-1)) 5944 5945 #endif /* !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) */ 5946 5947 5948 /* Nonzero if we're done parsing and into end-of-file activities. 5950 2 if all templates have been instantiated. 5951 3 if we're done with front-end processing. */ 5952 5953 extern int at_eof; 5954 5955 /* True if note_mangling_alias should enqueue mangling aliases for 5956 later generation, rather than emitting them right away. */ 5957 5958 extern bool defer_mangling_aliases; 5959 5960 /* True if noexcept is part of the type (i.e. in C++17). */ 5961 5962 extern bool flag_noexcept_type; 5963 5964 /* A list of namespace-scope objects which have constructors or 5965 destructors which reside in the global scope. The decl is stored 5966 in the TREE_VALUE slot and the initializer is stored in the 5967 TREE_PURPOSE slot. */ 5968 extern GTY(()) tree static_aggregates; 5969 /* Likewise, for thread local storage. */ 5970 extern GTY(()) tree tls_aggregates; 5971 5972 /* A hash-map mapping from variable decls to the dynamic initializer for 5973 the decl. This is currently only used by OpenMP. */ 5974 extern GTY(()) decl_tree_map *dynamic_initializers; 5975 5976 enum overload_flags { NO_SPECIAL = 0, DTOR_FLAG, TYPENAME_FLAG }; 5977 5978 /* These are uses as bits in flags passed to various functions to 5979 control their behavior. Despite the LOOKUP_ prefix, many of these 5980 do not control name lookup. ??? Functions using these flags should 5981 probably be modified to accept explicit boolean flags for the 5982 behaviors relevant to them. */ 5983 /* Check for access violations. */ 5984 #define LOOKUP_PROTECT (1 << 0) 5985 #define LOOKUP_NORMAL (LOOKUP_PROTECT) 5986 /* Even if the function found by lookup is a virtual function, it 5987 should be called directly. */ 5988 #define LOOKUP_NONVIRTUAL (1 << 1) 5989 /* Non-converting (i.e., "explicit") constructors are not tried. This flag 5990 indicates that we are not performing direct-initialization. */ 5991 #define LOOKUP_ONLYCONVERTING (1 << 2) 5992 #define LOOKUP_IMPLICIT (LOOKUP_NORMAL | LOOKUP_ONLYCONVERTING) 5993 /* If a temporary is created, it should be created so that it lives 5994 as long as the current variable bindings; otherwise it only lives 5995 until the end of the complete-expression. It also forces 5996 direct-initialization in cases where other parts of the compiler 5997 have already generated a temporary, such as reference 5998 initialization and the catch parameter. */ 5999 #define DIRECT_BIND (1 << 3) 6000 /* We're performing a user-defined conversion, so more user-defined 6001 conversions are not permitted (only built-in conversions). */ 6002 #define LOOKUP_NO_CONVERSION (1 << 4) 6003 /* The user has explicitly called a destructor. (Therefore, we do 6004 not need to check that the object is non-NULL before calling the 6005 destructor.) */ 6006 #define LOOKUP_DESTRUCTOR (1 << 5) 6007 /* Do not permit references to bind to temporaries. */ 6008 #define LOOKUP_NO_TEMP_BIND (1 << 6) 6009 /* We're inside an init-list, so narrowing conversions are ill-formed. */ 6010 #define LOOKUP_NO_NARROWING (LOOKUP_NO_TEMP_BIND << 1) 6011 /* We're looking up a constructor for list-initialization. */ 6012 #define LOOKUP_LIST_INIT_CTOR (LOOKUP_NO_NARROWING << 1) 6013 /* This is the first parameter of a copy constructor. */ 6014 #define LOOKUP_COPY_PARM (LOOKUP_LIST_INIT_CTOR << 1) 6015 /* We only want to consider list constructors. */ 6016 #define LOOKUP_LIST_ONLY (LOOKUP_COPY_PARM << 1) 6017 /* Return after determining which function to call and checking access. 6018 Used by sythesized_method_walk to determine which functions will 6019 be called to initialize subobjects, in order to determine exception 6020 specification and possible implicit delete. 6021 This is kind of a hack, but exiting early avoids problems with trying 6022 to perform argument conversions when the class isn't complete yet. */ 6023 #define LOOKUP_SPECULATIVE (LOOKUP_LIST_ONLY << 1) 6024 /* Used by calls from defaulted functions to limit the overload set to avoid 6025 cycles trying to declare them (core issue 1092). */ 6026 #define LOOKUP_DEFAULTED (LOOKUP_SPECULATIVE << 1) 6027 /* Used in calls to store_init_value to suppress its usual call to 6028 digest_init. */ 6029 #define LOOKUP_ALREADY_DIGESTED (LOOKUP_DEFAULTED << 1) 6030 /* Like LOOKUP_NO_TEMP_BIND, but also prevent binding to xvalues. */ 6031 #define LOOKUP_NO_RVAL_BIND (LOOKUP_ALREADY_DIGESTED << 1) 6032 /* Used by case_conversion to disregard non-integral conversions. */ 6033 #define LOOKUP_NO_NON_INTEGRAL (LOOKUP_NO_RVAL_BIND << 1) 6034 /* Used for delegating constructors in order to diagnose self-delegation. */ 6035 #define LOOKUP_DELEGATING_CONS (LOOKUP_NO_NON_INTEGRAL << 1) 6036 /* Allow initialization of a flexible array members. */ 6037 #define LOOKUP_ALLOW_FLEXARRAY_INIT (LOOKUP_DELEGATING_CONS << 1) 6038 /* We're looking for either a rewritten comparison operator candidate or the 6039 operator to use on the former's result. We distinguish between the two by 6040 knowing that comparisons other than == and <=> must be the latter, as must 6041 a <=> expression trying to rewrite to <=> without reversing. */ 6042 #define LOOKUP_REWRITTEN (LOOKUP_ALLOW_FLEXARRAY_INIT << 1) 6043 /* Reverse the order of the two arguments for comparison rewriting. First we 6044 swap the arguments in add_operator_candidates, then we swap the conversions 6045 in add_candidate (so that they correspond to the original order of the 6046 args), then we swap the conversions back in build_new_op_1 (so they 6047 correspond to the order of the args in the candidate). */ 6048 #define LOOKUP_REVERSED (LOOKUP_REWRITTEN << 1) 6049 /* We're initializing an aggregate from a parenthesized list of values. */ 6050 #define LOOKUP_AGGREGATE_PAREN_INIT (LOOKUP_REVERSED << 1) 6051 /* We're computing conversions as part of a first pass of overload resolution 6052 wherein we don't try to distinguish an unviable candidate from a 6053 non-strictly viable candidate and thus can avoid computing unnecessary 6054 bad conversions. */ 6055 #define LOOKUP_SHORTCUT_BAD_CONVS (LOOKUP_AGGREGATE_PAREN_INIT << 1) 6056 6057 /* These flags are used by the conversion code. 6058 CONV_IMPLICIT : Perform implicit conversions (standard and user-defined). 6059 CONV_STATIC : Perform the explicit conversions for static_cast. 6060 CONV_CONST : Perform the explicit conversions for const_cast. 6061 CONV_REINTERPRET: Perform the explicit conversions for reinterpret_cast. 6062 CONV_PRIVATE : Perform upcasts to private bases. 6063 CONV_FORCE_TEMP : Require a new temporary when converting to the same 6064 aggregate type. */ 6065 6066 #define CONV_IMPLICIT 1 6067 #define CONV_STATIC 2 6068 #define CONV_CONST 4 6069 #define CONV_REINTERPRET 8 6070 #define CONV_PRIVATE 16 6071 #define CONV_FORCE_TEMP 32 6072 #define CONV_FOLD 64 6073 #define CONV_OLD_CONVERT (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \ 6074 | CONV_REINTERPRET) 6075 #define CONV_C_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \ 6076 | CONV_REINTERPRET | CONV_PRIVATE | CONV_FORCE_TEMP) 6077 #define CONV_BACKEND_CONVERT (CONV_OLD_CONVERT | CONV_FOLD) 6078 6079 /* Used by build_expr_type_conversion to indicate which types are 6080 acceptable as arguments to the expression under consideration. */ 6081 6082 #define WANT_INT 1 /* integer types, including bool */ 6083 #define WANT_FLOAT 2 /* floating point types */ 6084 #define WANT_ENUM 4 /* enumerated types */ 6085 #define WANT_POINTER 8 /* pointer types */ 6086 #define WANT_NULL 16 /* null pointer constant */ 6087 #define WANT_VECTOR_OR_COMPLEX 32 /* vector or complex types */ 6088 #define WANT_ARITH (WANT_INT | WANT_FLOAT | WANT_VECTOR_OR_COMPLEX) 6089 6090 /* Used with comptypes, and related functions, to guide type 6091 comparison. */ 6092 6093 #define COMPARE_STRICT 0 /* Just check if the types are the 6094 same. */ 6095 #define COMPARE_BASE 1 /* Check to see if the second type is 6096 derived from the first. */ 6097 #define COMPARE_DERIVED 2 /* Like COMPARE_BASE, but in 6098 reverse. */ 6099 #define COMPARE_REDECLARATION 4 /* The comparison is being done when 6100 another declaration of an existing 6101 entity is seen. */ 6102 #define COMPARE_STRUCTURAL 8 /* The comparison is intended to be 6103 structural. The actual comparison 6104 will be identical to 6105 COMPARE_STRICT. */ 6106 6107 /* Used with start function. */ 6108 #define SF_DEFAULT 0 /* No flags. */ 6109 #define SF_PRE_PARSED 1 /* The function declaration has 6110 already been parsed. */ 6111 #define SF_INCLASS_INLINE 2 /* The function is an inline, defined 6112 in the class body. */ 6113 6114 /* Used with start_decl's initialized parameter. */ 6115 #define SD_UNINITIALIZED 0 6116 #define SD_INITIALIZED 1 6117 /* Like SD_INITIALIZED, but also mark the new decl as DECL_DECOMPOSITION_P. */ 6118 #define SD_DECOMPOSITION 2 6119 #define SD_DEFAULTED 3 6120 #define SD_DELETED 4 6121 6122 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, or if TYPE2 6123 is derived from TYPE1, or if TYPE2 is a pointer (reference) to a 6124 class derived from the type pointed to (referred to) by TYPE1. */ 6125 #define same_or_base_type_p(TYPE1, TYPE2) \ 6126 comptypes ((TYPE1), (TYPE2), COMPARE_BASE) 6127 6128 /* These macros are used to access a TEMPLATE_PARM_INDEX. */ 6129 #define TEMPLATE_PARM_INDEX_CAST(NODE) \ 6130 ((template_parm_index*)TEMPLATE_PARM_INDEX_CHECK (NODE)) 6131 #define TEMPLATE_PARM_IDX(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->index) 6132 #define TEMPLATE_PARM_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->level) 6133 #define TEMPLATE_PARM_DESCENDANTS(NODE) (TREE_CHAIN (TEMPLATE_PARM_INDEX_CHECK (NODE))) 6134 #define TEMPLATE_PARM_ORIG_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->orig_level) 6135 #define TEMPLATE_PARM_DECL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->decl) 6136 #define TEMPLATE_PARM_PARAMETER_PACK(NODE) \ 6137 (TREE_LANG_FLAG_0 (TEMPLATE_PARM_INDEX_CHECK (NODE))) 6138 6139 /* These macros are for accessing the fields of TEMPLATE_TYPE_PARM, 6140 TEMPLATE_TEMPLATE_PARM and BOUND_TEMPLATE_TEMPLATE_PARM nodes. */ 6141 #define TEMPLATE_TYPE_PARM_INDEX(NODE) \ 6142 (TYPE_VALUES_RAW (TREE_CHECK3 ((NODE), TEMPLATE_TYPE_PARM, \ 6143 TEMPLATE_TEMPLATE_PARM, \ 6144 BOUND_TEMPLATE_TEMPLATE_PARM))) 6145 #define TEMPLATE_TYPE_IDX(NODE) \ 6146 (TEMPLATE_PARM_IDX (TEMPLATE_TYPE_PARM_INDEX (NODE))) 6147 #define TEMPLATE_TYPE_LEVEL(NODE) \ 6148 (TEMPLATE_PARM_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE))) 6149 #define TEMPLATE_TYPE_ORIG_LEVEL(NODE) \ 6150 (TEMPLATE_PARM_ORIG_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE))) 6151 #define TEMPLATE_TYPE_DESCENDANTS(NODE) \ 6152 (TEMPLATE_PARM_DESCENDANTS (TEMPLATE_TYPE_PARM_INDEX (NODE))) 6153 #define TEMPLATE_TYPE_DECL(NODE) \ 6154 (TEMPLATE_PARM_DECL (TEMPLATE_TYPE_PARM_INDEX (NODE))) 6155 #define TEMPLATE_TYPE_PARAMETER_PACK(NODE) \ 6156 (TEMPLATE_PARM_PARAMETER_PACK (TEMPLATE_TYPE_PARM_INDEX (NODE))) 6157 6158 /* For a C++17 class deduction placeholder, the template it represents. */ 6159 #define CLASS_PLACEHOLDER_TEMPLATE(NODE) \ 6160 (DECL_INITIAL (TYPE_NAME (TEMPLATE_TYPE_PARM_CHECK (NODE)))) 6161 6162 /* True iff the template parameters of this TEMPLATE_TEMPLATE_PARM don't 6163 use any outer template parameters. */ 6164 #define TEMPLATE_TEMPLATE_PARM_SIMPLE_P(NODE) \ 6165 (TYPE_LANG_FLAG_5 (TEMPLATE_TEMPLATE_PARM_CHECK (NODE))) 6166 6167 /* Contexts in which auto deduction occurs. These flags are 6168 used to control diagnostics in do_auto_deduction. */ 6169 6170 enum auto_deduction_context 6171 { 6172 adc_unspecified, /* Not given */ 6173 adc_variable_type, /* Variable initializer deduction */ 6174 adc_return_type, /* Return type deduction */ 6175 adc_unify, /* Template argument deduction */ 6176 adc_requirement, /* Argument deduction constraint */ 6177 adc_decomp_type /* Decomposition declaration initializer deduction */ 6178 }; 6179 6180 /* True iff this TEMPLATE_TYPE_PARM represents decltype(auto). */ 6181 #define AUTO_IS_DECLTYPE(NODE) \ 6182 (TYPE_LANG_FLAG_5 (TEMPLATE_TYPE_PARM_CHECK (NODE))) 6183 6184 /* These constants can used as bit flags in the process of tree formatting. 6185 6186 TFF_PLAIN_IDENTIFIER: unqualified part of a name. 6187 TFF_SCOPE: include the class and namespace scope of the name. 6188 TFF_CHASE_TYPEDEF: print the original type-id instead of the typedef-name. 6189 TFF_DECL_SPECIFIERS: print decl-specifiers. 6190 TFF_CLASS_KEY_OR_ENUM: precede a class-type name (resp. enum name) with 6191 a class-key (resp. `enum'). 6192 TFF_RETURN_TYPE: include function return type. 6193 TFF_FUNCTION_DEFAULT_ARGUMENTS: include function default parameter values. 6194 TFF_EXCEPTION_SPECIFICATION: show function exception specification. 6195 TFF_TEMPLATE_HEADER: show the template<...> header in a 6196 template-declaration. 6197 TFF_TEMPLATE_NAME: show only template-name. 6198 TFF_EXPR_IN_PARENS: parenthesize expressions. 6199 TFF_NO_FUNCTION_ARGUMENTS: don't show function arguments. 6200 TFF_UNQUALIFIED_NAME: do not print the qualifying scope of the 6201 top-level entity. 6202 TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS: do not omit template arguments 6203 identical to their defaults. 6204 TFF_NO_TEMPLATE_BINDINGS: do not print information about the template 6205 arguments for a function template specialization. 6206 TFF_POINTER: we are printing a pointer type. 6207 TFF_XOBJ_FUNC: we are printing an explicit object member function's 6208 parameters. */ 6209 6210 #define TFF_PLAIN_IDENTIFIER (0) 6211 #define TFF_SCOPE (1) 6212 #define TFF_CHASE_TYPEDEF (1 << 1) 6213 #define TFF_DECL_SPECIFIERS (1 << 2) 6214 #define TFF_CLASS_KEY_OR_ENUM (1 << 3) 6215 #define TFF_RETURN_TYPE (1 << 4) 6216 #define TFF_FUNCTION_DEFAULT_ARGUMENTS (1 << 5) 6217 #define TFF_EXCEPTION_SPECIFICATION (1 << 6) 6218 #define TFF_TEMPLATE_HEADER (1 << 7) 6219 #define TFF_TEMPLATE_NAME (1 << 8) 6220 #define TFF_EXPR_IN_PARENS (1 << 9) 6221 #define TFF_NO_FUNCTION_ARGUMENTS (1 << 10) 6222 #define TFF_UNQUALIFIED_NAME (1 << 11) 6223 #define TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS (1 << 12) 6224 #define TFF_NO_TEMPLATE_BINDINGS (1 << 13) 6225 #define TFF_POINTER (1 << 14) 6226 #define TFF_XOBJ_FUNC (1 << 15) 6227 6228 /* These constants can be used as bit flags to control strip_typedefs. 6229 6230 STF_USER_VISIBLE: use heuristics to try to avoid stripping user-facing 6231 aliases of internal details. This is intended for diagnostics, 6232 where it should (for example) give more useful "aka" types. 6233 6234 STF_STRIP_DEPENDENT: allow the stripping of aliases with dependent 6235 template parameters, relying on code elsewhere to report any 6236 appropriate diagnostics. */ 6237 const unsigned int STF_USER_VISIBLE = 1U; 6238 const unsigned int STF_STRIP_DEPENDENT = 1U << 1; 6239 6240 /* Returns the TEMPLATE_DECL associated to a TEMPLATE_TEMPLATE_PARM 6241 node. */ 6242 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_DECL(NODE) \ 6243 ((TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM) \ 6244 ? TYPE_TI_TEMPLATE (NODE) \ 6245 : TYPE_NAME (TEMPLATE_TEMPLATE_PARM_CHECK (NODE))) 6246 6247 /* in lex.cc */ 6248 6249 extern void init_reswords (void); 6250 6251 /* Various flags for the overloaded operator information. */ 6252 enum ovl_op_flags { 6253 OVL_OP_FLAG_NONE = 0, /* Don't care. */ 6254 OVL_OP_FLAG_UNARY = 1, /* Is unary. */ 6255 OVL_OP_FLAG_BINARY = 2, /* Is binary. */ 6256 OVL_OP_FLAG_AMBIARY = 3, /* May be unary or binary. */ 6257 OVL_OP_FLAG_ALLOC = 4, /* operator new or delete. */ 6258 OVL_OP_FLAG_DELETE = 1, /* operator delete. */ 6259 OVL_OP_FLAG_VEC = 2 /* vector new or delete. */ 6260 }; 6261 6262 /* Compressed operator codes. Order is determined by operators.def 6263 and does not match that of tree_codes. */ 6264 enum ovl_op_code { 6265 OVL_OP_ERROR_MARK, 6266 OVL_OP_NOP_EXPR, 6267 #define DEF_OPERATOR(NAME, CODE, MANGLING, FLAGS) OVL_OP_##CODE, 6268 #define DEF_ASSN_OPERATOR(NAME, CODE, MANGLING) /* NOTHING */ 6269 #include "operators.def" 6270 OVL_OP_MAX 6271 }; 6272 6273 /* Make sure it fits in lang_decl_fn::ovl_op_code. */ 6274 STATIC_ASSERT (OVL_OP_MAX < (1 << 6)); 6275 6276 struct GTY(()) ovl_op_info_t { 6277 /* The IDENTIFIER_NODE for the operator. */ 6278 tree identifier; 6279 /* The name of the operator. */ 6280 const char *name; 6281 /* The mangled name of the operator. */ 6282 const char *mangled_name; 6283 /* The (regular) tree code. */ 6284 enum tree_code tree_code : 16; 6285 /* The (compressed) operator code. */ 6286 enum ovl_op_code ovl_op_code : 8; 6287 /* The ovl_op_flags of the operator */ 6288 unsigned flags : 8; 6289 }; 6290 6291 /* Overloaded operator info indexed by ass_op_p & ovl_op_code. */ 6292 extern GTY(()) ovl_op_info_t ovl_op_info[2][OVL_OP_MAX]; 6293 /* Mapping from tree_codes to ovl_op_codes. */ 6294 extern GTY(()) unsigned char ovl_op_mapping[MAX_TREE_CODES]; 6295 /* Mapping for ambi-ary operators from the binary to the unary. */ 6296 extern GTY(()) unsigned char ovl_op_alternate[OVL_OP_MAX]; 6297 6298 /* Given an ass_op_p boolean and a tree code, return a pointer to its 6299 overloaded operator info. Tree codes for non-overloaded operators 6300 map to the error-operator. */ 6301 #define OVL_OP_INFO(IS_ASS_P, TREE_CODE) \ 6302 (&ovl_op_info[(IS_ASS_P) != 0][ovl_op_mapping[(TREE_CODE)]]) 6303 /* Overloaded operator info for an identifier for which 6304 IDENTIFIER_OVL_OP_P is true. */ 6305 #define IDENTIFIER_OVL_OP_INFO(NODE) \ 6306 (&ovl_op_info[IDENTIFIER_KIND_BIT_0 (NODE)][IDENTIFIER_CP_INDEX (NODE)]) 6307 #define IDENTIFIER_OVL_OP_FLAGS(NODE) \ 6308 (IDENTIFIER_OVL_OP_INFO (NODE)->flags) 6309 6310 inline tree ovl_op_identifier (bool isass, tree_code code) 6311 { return OVL_OP_INFO(isass, code)->identifier; } 6312 inline tree ovl_op_identifier (tree_code code) { return ovl_op_identifier (false, code); } 6313 #define assign_op_identifier (ovl_op_info[true][OVL_OP_NOP_EXPR].identifier) 6314 #define call_op_identifier (ovl_op_info[false][OVL_OP_CALL_EXPR].identifier) 6315 6316 /* A type-qualifier, or bitmask therefore, using the TYPE_QUAL 6317 constants. */ 6318 6319 typedef int cp_cv_quals; 6320 6321 /* Non-static member functions have an optional virt-specifier-seq. 6322 There is a VIRT_SPEC value for each virt-specifier. 6323 They can be combined by bitwise-or to form the complete set of 6324 virt-specifiers for a member function. */ 6325 enum virt_specifier 6326 { 6327 VIRT_SPEC_UNSPECIFIED = 0x0, 6328 VIRT_SPEC_FINAL = 0x1, 6329 VIRT_SPEC_OVERRIDE = 0x2 6330 }; 6331 6332 /* A type-qualifier, or bitmask therefore, using the VIRT_SPEC 6333 constants. */ 6334 6335 typedef int cp_virt_specifiers; 6336 6337 /* Wherever there is a function-cv-qual, there could also be a ref-qualifier: 6338 6339 [dcl.fct] 6340 The return type, the parameter-type-list, the ref-qualifier, and 6341 the cv-qualifier-seq, but not the default arguments or the exception 6342 specification, are part of the function type. 6343 6344 REF_QUAL_NONE Ordinary member function with no ref-qualifier 6345 REF_QUAL_LVALUE Member function with the &-ref-qualifier 6346 REF_QUAL_RVALUE Member function with the &&-ref-qualifier */ 6347 6348 enum cp_ref_qualifier { 6349 REF_QUAL_NONE = 0, 6350 REF_QUAL_LVALUE = 1, 6351 REF_QUAL_RVALUE = 2 6352 }; 6353 6354 /* A storage class. */ 6355 6356 enum cp_storage_class { 6357 /* sc_none must be zero so that zeroing a cp_decl_specifier_seq 6358 sets the storage_class field to sc_none. */ 6359 sc_none = 0, 6360 sc_auto, 6361 sc_register, 6362 sc_static, 6363 sc_extern, 6364 sc_mutable 6365 }; 6366 6367 /* An individual decl-specifier. This is used to index the array of 6368 locations for the declspecs in struct cp_decl_specifier_seq 6369 below. 6370 A subset of these enums also corresponds to elements of 6371 cp_parser_set_decl_spec_type:decl_spec_names in parser.cc. */ 6372 6373 enum cp_decl_spec { 6374 ds_first, 6375 ds_signed = ds_first, /* Index of first element of decl_spec_names. */ 6376 ds_unsigned, 6377 ds_short, 6378 ds_long, 6379 ds_const, 6380 ds_volatile, 6381 ds_restrict, 6382 ds_inline, 6383 ds_virtual, 6384 ds_explicit, 6385 ds_friend, 6386 ds_typedef, 6387 ds_alias, 6388 ds_constexpr, 6389 ds_complex, 6390 ds_constinit, 6391 ds_consteval, 6392 ds_this, /* Index of last element of decl_spec_names. */ 6393 ds_thread, 6394 ds_type_spec, 6395 ds_redefined_builtin_type_spec, 6396 ds_attribute, 6397 ds_std_attribute, 6398 ds_storage_class, 6399 ds_long_long, 6400 ds_concept, 6401 ds_last /* This enumerator must always be the last one. */ 6402 }; 6403 6404 /* A decl-specifier-seq. */ 6405 6406 struct cp_decl_specifier_seq { 6407 /* An array of locations for the declaration sepecifiers, indexed by 6408 enum cp_decl_spec_word. */ 6409 location_t locations[ds_last]; 6410 /* The primary type, if any, given by the decl-specifier-seq. 6411 Modifiers, like "short", "const", and "unsigned" are not 6412 reflected here. This field will be a TYPE, unless a typedef-name 6413 was used, in which case it will be a TYPE_DECL. */ 6414 tree type; 6415 /* The attributes, if any, provided with the specifier sequence. */ 6416 tree attributes; 6417 /* The c++11 attributes that follows the type specifier. */ 6418 tree std_attributes; 6419 /* If non-NULL, a built-in type that the user attempted to redefine 6420 to some other type. */ 6421 tree redefined_builtin_type; 6422 /* The explicit-specifier, if any. */ 6423 tree explicit_specifier; 6424 /* The storage class specified -- or sc_none if no storage class was 6425 explicitly specified. */ 6426 cp_storage_class storage_class; 6427 /* For the __intN declspec, this stores the index into the int_n_* arrays. */ 6428 int int_n_idx; 6429 /* True iff TYPE_SPEC defines a class or enum. */ 6430 BOOL_BITFIELD type_definition_p : 1; 6431 /* True iff multiple types were (erroneously) specified for this 6432 decl-specifier-seq. */ 6433 BOOL_BITFIELD multiple_types_p : 1; 6434 /* True iff multiple storage classes were (erroneously) specified 6435 for this decl-specifier-seq or a combination of a storage class 6436 with a typedef specifier. */ 6437 BOOL_BITFIELD conflicting_specifiers_p : 1; 6438 /* True iff at least one decl-specifier was found. */ 6439 BOOL_BITFIELD any_specifiers_p : 1; 6440 /* True iff at least one type-specifier was found. */ 6441 BOOL_BITFIELD any_type_specifiers_p : 1; 6442 /* True iff "int" was explicitly provided. */ 6443 BOOL_BITFIELD explicit_int_p : 1; 6444 /* True iff "__intN" was explicitly provided. */ 6445 BOOL_BITFIELD explicit_intN_p : 1; 6446 /* True iff "char" was explicitly provided. */ 6447 BOOL_BITFIELD explicit_char_p : 1; 6448 /* True iff ds_thread is set for __thread, not thread_local. */ 6449 BOOL_BITFIELD gnu_thread_keyword_p : 1; 6450 /* True iff the type is a decltype. */ 6451 BOOL_BITFIELD decltype_p : 1; 6452 /* True iff the alternate "__intN__" form of the __intN type has been 6453 used. */ 6454 BOOL_BITFIELD int_n_alt: 1; 6455 }; 6456 6457 /* The various kinds of declarators. */ 6458 6459 enum cp_declarator_kind { 6460 cdk_id, 6461 cdk_function, 6462 cdk_array, 6463 cdk_pointer, 6464 cdk_reference, 6465 cdk_ptrmem, 6466 cdk_decomp, 6467 cdk_error 6468 }; 6469 6470 /* A declarator. */ 6471 6472 typedef struct cp_declarator cp_declarator; 6473 6474 typedef struct cp_parameter_declarator cp_parameter_declarator; 6475 6476 /* A parameter, before it has been semantically analyzed. */ 6477 struct cp_parameter_declarator { 6478 /* The next parameter, or NULL_TREE if none. */ 6479 cp_parameter_declarator *next; 6480 /* The decl-specifiers-seq for the parameter. */ 6481 cp_decl_specifier_seq decl_specifiers; 6482 /* The declarator for the parameter. */ 6483 cp_declarator *declarator; 6484 /* The default-argument expression, or NULL_TREE, if none. */ 6485 tree default_argument; 6486 /* True iff this is a template parameter pack. */ 6487 bool template_parameter_pack_p; 6488 /* Location within source. */ 6489 location_t loc; 6490 }; 6491 6492 /* A declarator. */ 6493 struct cp_declarator { 6494 /* The kind of declarator. */ 6495 ENUM_BITFIELD (cp_declarator_kind) kind : 4; 6496 /* Whether we parsed an ellipsis (`...') just before the declarator, 6497 to indicate this is a parameter pack. */ 6498 BOOL_BITFIELD parameter_pack_p : 1; 6499 /* If this declarator is parenthesized, this the open-paren. It is 6500 UNKNOWN_LOCATION when not parenthesized. */ 6501 location_t parenthesized; 6502 /* Currently only set for cdk_id, cdk_decomp and cdk_function. */ 6503 location_t id_loc; 6504 /* If this declarator is part of an init-declarator, the location of the 6505 initializer. */ 6506 location_t init_loc; 6507 /* GNU Attributes that apply to this declarator. If the declarator 6508 is a pointer or a reference, these attribute apply to the type 6509 pointed to. */ 6510 tree attributes; 6511 /* Standard C++11 attributes that apply to this declarator. If the 6512 declarator is a pointer or a reference, these attributes apply 6513 to the pointer, rather than to the type pointed to. */ 6514 tree std_attributes; 6515 /* For all but cdk_id, cdk_decomp and cdk_error, the contained declarator. 6516 For cdk_id, cdk_decomp and cdk_error, guaranteed to be NULL. */ 6517 cp_declarator *declarator; 6518 union { 6519 /* For identifiers. */ 6520 struct { 6521 /* If non-NULL, the qualifying scope (a NAMESPACE_DECL or 6522 *_TYPE) for this identifier. */ 6523 tree qualifying_scope; 6524 /* The unqualified name of the entity -- an IDENTIFIER_NODE, 6525 BIT_NOT_EXPR, or TEMPLATE_ID_EXPR. */ 6526 tree unqualified_name; 6527 /* If this is the name of a function, what kind of special 6528 function (if any). */ 6529 special_function_kind sfk; 6530 } id; 6531 /* For functions. */ 6532 struct { 6533 /* The parameters to the function as a TREE_LIST of decl/default. */ 6534 tree parameters; 6535 /* The cv-qualifiers for the function. */ 6536 cp_cv_quals qualifiers; 6537 /* The virt-specifiers for the function. */ 6538 cp_virt_specifiers virt_specifiers; 6539 /* The ref-qualifier for the function. */ 6540 cp_ref_qualifier ref_qualifier; 6541 /* The transaction-safety qualifier for the function. */ 6542 tree tx_qualifier; 6543 /* The exception-specification for the function. */ 6544 tree exception_specification; 6545 /* The late-specified return type, if any. */ 6546 tree late_return_type; 6547 /* The trailing requires-clause, if any. */ 6548 tree requires_clause; 6549 location_t parens_loc; 6550 } function; 6551 /* For arrays. */ 6552 struct { 6553 /* The bounds to the array. */ 6554 tree bounds; 6555 } array; 6556 /* For cdk_pointer and cdk_ptrmem. */ 6557 struct { 6558 /* The cv-qualifiers for the pointer. */ 6559 cp_cv_quals qualifiers; 6560 /* For cdk_ptrmem, the class type containing the member. */ 6561 tree class_type; 6562 } pointer; 6563 /* For cdk_reference */ 6564 struct { 6565 /* The cv-qualifiers for the reference. These qualifiers are 6566 only used to diagnose ill-formed code. */ 6567 cp_cv_quals qualifiers; 6568 /* Whether this is an rvalue reference */ 6569 bool rvalue_ref; 6570 } reference; 6571 } u; 6572 }; 6573 6574 /* A level of template instantiation. */ 6575 struct GTY((chain_next ("%h.next"))) tinst_level { 6576 /* The immediately deeper level in the chain. */ 6577 struct tinst_level *next; 6578 6579 /* The original node. TLDCL can be a DECL (for a function or static 6580 data member), a TYPE (for a class), depending on what we were 6581 asked to instantiate, or a TREE_LIST with the template as PURPOSE 6582 and the template args as VALUE, if we are substituting for 6583 overload resolution. In all these cases, TARGS is NULL. 6584 However, to avoid creating TREE_LIST objects for substitutions if 6585 we can help, we store PURPOSE and VALUE in TLDCL and TARGS, 6586 respectively. So TLDCL stands for TREE_LIST or DECL (the 6587 template is a DECL too), whereas TARGS stands for the template 6588 arguments. */ 6589 tree tldcl, targs; 6590 6591 /* For modules we need to know (a) the modules on the path of 6592 instantiation and (b) the transitive imports along that path. 6593 Note that these two bitmaps may be inherited from NEXT, if this 6594 decl is in the same module as NEXT (or has no new information). */ 6595 bitmap path; 6596 bitmap visible; 6597 6598 private: 6599 /* Return TRUE iff the original node is a split list. */ 6600 bool split_list_p () const { return targs; } 6601 6602 /* Return TRUE iff the original node is a TREE_LIST object. */ 6603 bool tree_list_p () const 6604 { 6605 return !split_list_p () && TREE_CODE (tldcl) == TREE_LIST; 6606 } 6607 6608 /* Return TRUE iff the original node is not a list, split or not. */ 6609 bool not_list_p () const 6610 { 6611 return !split_list_p () && !tree_list_p (); 6612 } 6613 6614 /* Convert (in place) the original node from a split list to a 6615 TREE_LIST. */ 6616 tree to_list (); 6617 6618 public: 6619 /* Release storage for OBJ and node, if it's a TREE_LIST. */ 6620 static void free (tinst_level *obj); 6621 6622 /* Return TRUE iff the original node is a list, split or not. */ 6623 bool list_p () const { return !not_list_p (); } 6624 6625 /* Return the original node; if it's a split list, make it a 6626 TREE_LIST first, so that it can be returned as a single tree 6627 object. */ 6628 tree get_node () { 6629 if (!split_list_p ()) return tldcl; 6630 else return to_list (); 6631 } 6632 6633 /* Return the original node if it's a DECL or a TREE_LIST, but do 6634 NOT convert a split list to a TREE_LIST: return NULL instead. */ 6635 tree maybe_get_node () const { 6636 if (!split_list_p ()) return tldcl; 6637 else return NULL_TREE; 6638 } 6639 6640 /* The location where the template is instantiated. */ 6641 location_t locus; 6642 6643 /* errorcount + sorrycount when we pushed this level. */ 6644 unsigned short errors; 6645 6646 /* Count references to this object. If refcount reaches 6647 refcount_infinity value, we don't increment or decrement the 6648 refcount anymore, as the refcount isn't accurate anymore. 6649 The object can be still garbage collected if unreferenced from 6650 anywhere, which might keep referenced objects referenced longer than 6651 otherwise necessary. Hitting the infinity is rare though. */ 6652 unsigned short refcount; 6653 6654 /* Infinity value for the above refcount. */ 6655 static const unsigned short refcount_infinity = (unsigned short) ~0; 6656 }; 6657 6658 /* BUILT_IN_FRONTEND function codes. */ 6659 enum cp_built_in_function { 6660 CP_BUILT_IN_IS_CONSTANT_EVALUATED, 6661 CP_BUILT_IN_INTEGER_PACK, 6662 CP_BUILT_IN_IS_CORRESPONDING_MEMBER, 6663 CP_BUILT_IN_IS_POINTER_INTERCONVERTIBLE_WITH_CLASS, 6664 CP_BUILT_IN_SOURCE_LOCATION, 6665 CP_BUILT_IN_LAST 6666 }; 6667 6668 bool decl_spec_seq_has_spec_p (const cp_decl_specifier_seq *, cp_decl_spec); 6669 6670 /* Return the type of the `this' parameter of FNTYPE. */ 6671 6672 inline tree 6673 type_of_this_parm (const_tree fntype) 6674 { 6675 function_args_iterator iter; 6676 gcc_assert (TREE_CODE (fntype) == METHOD_TYPE); 6677 function_args_iter_init (&iter, fntype); 6678 return function_args_iter_cond (&iter); 6679 } 6680 6681 /* Return the class of the `this' parameter of FNTYPE. */ 6682 6683 inline tree 6684 class_of_this_parm (const_tree fntype) 6685 { 6686 return TREE_TYPE (type_of_this_parm (fntype)); 6687 } 6688 6689 /* A parameter list indicating for a function with no parameters, 6690 e.g "int f(void)". */ 6691 extern cp_parameter_declarator *no_parameters; 6692 6693 /* Various dump ids. */ 6694 extern int class_dump_id; 6695 extern int module_dump_id; 6696 extern int raw_dump_id; 6697 6698 /* Whether the current context is manifestly constant-evaluated. 6699 Used by the constexpr machinery to control folding of 6700 __builtin_is_constant_evaluated. */ 6701 6702 enum class mce_value 6703 { 6704 /* Unknown, so treat __builtin_is_constant_evaluated as non-constant. */ 6705 mce_unknown = 0, 6706 /* Fold it to true. */ 6707 mce_true = 1, 6708 /* Fold it to false. Primarily used during cp_fold_function and 6709 cp_fully_fold_init. */ 6710 mce_false = -1, 6711 }; 6712 constexpr mce_value mce_unknown = mce_value::mce_unknown; 6713 constexpr mce_value mce_true = mce_value::mce_true; 6714 constexpr mce_value mce_false = mce_value::mce_false; 6715 6716 /* in call.cc */ 6717 extern bool check_dtor_name (tree, tree); 6718 int magic_varargs_p (tree); 6719 6720 extern tree build_conditional_expr (const op_location_t &, 6721 tree, tree, tree, 6722 tsubst_flags_t); 6723 extern tree build_addr_func (tree, tsubst_flags_t); 6724 extern void set_flags_from_callee (tree); 6725 extern tree build_call_a (tree, int, tree*); 6726 extern tree build_call_n (tree, int, ...); 6727 extern bool null_ptr_cst_p (tree); 6728 extern bool null_member_pointer_value_p (tree); 6729 extern bool sufficient_parms_p (const_tree); 6730 extern tree type_decays_to (tree); 6731 extern tree extract_call_expr (tree); 6732 extern tree build_trivial_dtor_call (tree, bool = false); 6733 extern tristate ref_conv_binds_to_temporary (tree, tree, bool = false); 6734 extern tree build_user_type_conversion (tree, tree, int, 6735 tsubst_flags_t); 6736 extern tree build_new_function_call (tree, vec<tree, va_gc> **, 6737 tsubst_flags_t); 6738 extern tree build_operator_new_call (tree, vec<tree, va_gc> **, 6739 tree *, tree *, tree, tree, 6740 tree *, tsubst_flags_t); 6741 extern tree build_new_method_call (tree, tree, 6742 vec<tree, va_gc> **, tree, 6743 int, tree *, tsubst_flags_t); 6744 extern tree build_special_member_call (tree, tree, 6745 vec<tree, va_gc> **, 6746 tree, int, tsubst_flags_t); 6747 extern tree build_new_op (const op_location_t &, 6748 enum tree_code, 6749 int, tree, tree, tree, tree, 6750 tree *, tsubst_flags_t); 6751 /* Wrapper that leaves out the usually-null op3 and overload parms. */ 6752 inline tree build_new_op (const op_location_t &loc, enum tree_code code, 6753 int flags, tree arg1, tree arg2, 6754 tsubst_flags_t complain) 6755 { 6756 return build_new_op (loc, code, flags, arg1, arg2, NULL_TREE, NULL_TREE, 6757 NULL, complain); 6758 } 6759 extern tree keep_unused_object_arg (tree, tree, tree); 6760 extern tree build_op_call (tree, vec<tree, va_gc> **, 6761 tsubst_flags_t); 6762 extern tree build_op_subscript (const op_location_t &, tree, 6763 vec<tree, va_gc> **, tree *, 6764 tsubst_flags_t); 6765 extern bool aligned_allocation_fn_p (tree); 6766 extern tree destroying_delete_p (tree); 6767 extern bool usual_deallocation_fn_p (tree); 6768 extern tree build_op_delete_call (enum tree_code, tree, tree, 6769 bool, tree, tree, 6770 tsubst_flags_t); 6771 extern bool can_convert (tree, tree, tsubst_flags_t); 6772 extern bool can_convert_standard (tree, tree, tsubst_flags_t); 6773 extern bool can_convert_arg (tree, tree, tree, int, 6774 tsubst_flags_t); 6775 extern bool can_convert_arg_bad (tree, tree, tree, int, 6776 tsubst_flags_t); 6777 extern int conv_flags (int, int, tree, tree, int); 6778 extern struct conversion * good_conversion (tree, tree, tree, int, tsubst_flags_t); 6779 extern location_t get_fndecl_argument_location (tree, int); 6780 extern void complain_about_bad_argument (location_t arg_loc, 6781 tree from_type, tree to_type, 6782 tree fndecl, int parmnum); 6783 extern void maybe_inform_about_fndecl_for_bogus_argument_init (tree, int); 6784 extern tree perform_dguide_overload_resolution (tree, const vec<tree, va_gc> *, 6785 tsubst_flags_t); 6786 6787 6788 /* A class for recording information about access failures (e.g. private 6789 fields), so that we can potentially supply a fix-it hint about 6790 an accessor (from a context in which the constness of the object 6791 is known). */ 6792 6793 class access_failure_info 6794 { 6795 public: 6796 access_failure_info () : m_was_inaccessible (false), 6797 m_basetype_path (NULL_TREE), 6798 m_decl (NULL_TREE), m_diag_decl (NULL_TREE) {} 6799 6800 void record_access_failure (tree basetype_path, tree decl, tree diag_decl); 6801 6802 bool was_inaccessible_p () const { return m_was_inaccessible; } 6803 tree get_decl () const { return m_decl; } 6804 tree get_diag_decl () const { return m_diag_decl; } 6805 tree get_any_accessor (bool const_p) const; 6806 void maybe_suggest_accessor (bool const_p) const; 6807 static void add_fixit_hint (rich_location *richloc, tree accessor); 6808 6809 private: 6810 bool m_was_inaccessible; 6811 tree m_basetype_path; 6812 tree m_decl; 6813 tree m_diag_decl; 6814 }; 6815 6816 extern void complain_about_access (tree, tree, tree, bool, 6817 access_kind); 6818 extern void push_defarg_context (tree); 6819 extern void pop_defarg_context (void); 6820 extern tree convert_default_arg (tree, tree, tree, int, 6821 tsubst_flags_t); 6822 extern tree convert_arg_to_ellipsis (tree, tsubst_flags_t); 6823 extern tree build_x_va_arg (location_t, tree, tree); 6824 extern tree cxx_type_promotes_to (tree); 6825 extern tree type_passed_as (tree); 6826 extern tree convert_for_arg_passing (tree, tree, tsubst_flags_t); 6827 extern bool is_properly_derived_from (tree, tree); 6828 extern tree initialize_reference (tree, tree, int, 6829 tsubst_flags_t); 6830 extern tree extend_ref_init_temps (tree, tree, 6831 vec<tree, va_gc>**, 6832 tree * = NULL); 6833 extern tree make_temporary_var_for_ref_to_temp (tree, tree); 6834 extern bool type_has_extended_temps (tree); 6835 extern tree strip_top_quals (tree); 6836 extern bool reference_related_p (tree, tree); 6837 extern bool reference_compatible_p (tree, tree); 6838 extern int remaining_arguments (tree); 6839 extern tree build_implicit_conv_flags (tree, tree, int); 6840 extern tree perform_implicit_conversion (tree, tree, tsubst_flags_t); 6841 extern tree perform_implicit_conversion_flags (tree, tree, tsubst_flags_t, int); 6842 extern tree build_converted_constant_expr (tree, tree, tsubst_flags_t); 6843 extern tree build_converted_constant_bool_expr (tree, tsubst_flags_t); 6844 extern tree perform_direct_initialization_if_possible (tree, tree, bool, 6845 tsubst_flags_t); 6846 extern vec<tree,va_gc> *resolve_args (vec<tree,va_gc>*, tsubst_flags_t); 6847 extern tree in_charge_arg_for_name (tree); 6848 extern bool in_immediate_context (); 6849 extern bool immediate_invocation_p (tree); 6850 extern tree build_cxx_call (tree, int, tree *, 6851 tsubst_flags_t, 6852 tree = NULL_TREE); 6853 extern bool is_std_init_list (tree); 6854 extern bool is_list_ctor (tree); 6855 extern void validate_conversion_obstack (void); 6856 extern void mark_versions_used (tree); 6857 extern int unsafe_return_slot_p (tree); 6858 extern bool unsafe_copy_elision_p (tree, tree); 6859 extern bool make_safe_copy_elision (tree, tree); 6860 extern bool cp_handle_deprecated_or_unavailable (tree, tsubst_flags_t = tf_warning_or_error); 6861 extern void cp_warn_deprecated_use_scopes (tree); 6862 extern tree get_function_version_dispatcher (tree); 6863 extern bool any_template_arguments_need_structural_equality_p (tree); 6864 extern void maybe_show_nonconverting_candidate (tree, tree, tree, int); 6865 extern bool conv_binds_to_reference_parm_p (tree, tree); 6866 6867 /* in class.cc */ 6868 extern tree build_vfield_ref (tree, tree); 6869 extern tree build_if_in_charge (tree true_stmt, tree false_stmt = void_node); 6870 extern tree build_base_path (enum tree_code, tree, 6871 tree, int, tsubst_flags_t); 6872 extern tree convert_to_base (tree, tree, bool, bool, 6873 tsubst_flags_t); 6874 extern tree convert_to_base_statically (tree, tree); 6875 extern bool is_empty_base_ref (tree); 6876 extern tree build_vtbl_ref (tree, tree); 6877 extern tree build_vfn_ref (tree, tree); 6878 extern tree get_vtable_decl (tree, int); 6879 extern bool object_parms_correspond (tree, tree, tree); 6880 extern bool iobj_parm_corresponds_to (tree, tree, tree); 6881 extern bool add_method (tree, tree, bool); 6882 extern tree declared_access (tree); 6883 extern bool maybe_push_used_methods (tree); 6884 extern tree currently_open_class (tree); 6885 extern tree currently_open_derived_class (tree); 6886 extern tree outermost_open_class (void); 6887 extern tree current_nonlambda_class_type (void); 6888 extern tree finish_struct (tree, tree); 6889 extern void finish_struct_1 (tree); 6890 extern int resolves_to_fixed_type_p (tree, int * = NULL); 6891 extern void init_class_processing (void); 6892 extern int is_empty_class (tree); 6893 extern bool is_really_empty_class (tree, bool); 6894 extern void pushclass (tree); 6895 extern void popclass (void); 6896 extern void push_nested_class (tree); 6897 extern void pop_nested_class (void); 6898 extern int current_lang_depth (void); 6899 extern void push_lang_context (tree); 6900 extern void pop_lang_context (void); 6901 extern tree instantiate_type (tree, tree, tsubst_flags_t); 6902 extern void build_self_reference (void); 6903 extern int same_signature_p (const_tree, const_tree); 6904 extern tree lookup_vfn_in_binfo (tree, tree); 6905 extern void maybe_add_class_template_decl_list (tree, tree, int); 6906 extern void unreverse_member_declarations (tree); 6907 extern bool is_empty_field (tree); 6908 extern void invalidate_class_lookup_cache (void); 6909 extern void maybe_note_name_used_in_class (tree, tree); 6910 extern void note_name_declared_in_class (tree, tree); 6911 extern tree get_vtbl_decl_for_binfo (tree); 6912 extern bool vptr_via_virtual_p (tree); 6913 extern void debug_class (tree); 6914 extern void debug_thunks (tree); 6915 extern void set_linkage_according_to_type (tree, tree); 6916 extern void determine_key_method (tree); 6917 extern void check_for_override (tree, tree); 6918 extern void push_class_stack (void); 6919 extern void pop_class_stack (void); 6920 extern bool default_ctor_p (const_tree); 6921 extern bool type_has_user_nondefault_constructor (tree); 6922 extern tree in_class_defaulted_default_constructor (tree); 6923 extern bool user_provided_p (tree); 6924 extern bool type_has_user_provided_constructor (tree); 6925 extern bool type_has_non_user_provided_default_constructor (tree); 6926 extern bool vbase_has_user_provided_move_assign (tree); 6927 extern tree default_init_uninitialized_part (tree); 6928 extern bool trivial_default_constructor_is_constexpr (tree); 6929 extern bool type_has_constexpr_default_constructor (tree); 6930 extern bool type_has_constexpr_destructor (tree); 6931 extern bool type_has_virtual_destructor (tree); 6932 extern bool type_has_non_deleted_trivial_default_ctor (tree); 6933 extern bool classtype_has_move_assign_or_move_ctor_p (tree, bool user_declared); 6934 extern bool classtype_has_non_deleted_move_ctor (tree); 6935 extern tree classtype_has_depr_implicit_copy (tree); 6936 extern bool classtype_has_op (tree, tree_code); 6937 extern tree classtype_has_defaulted_op (tree, tree_code); 6938 extern bool type_build_ctor_call (tree); 6939 extern bool type_build_dtor_call (tree); 6940 extern void explain_non_literal_class (tree); 6941 extern void inherit_targ_abi_tags (tree); 6942 extern void defaulted_late_check (tree); 6943 extern bool defaultable_fn_check (tree); 6944 extern void check_abi_tags (tree); 6945 extern tree missing_abi_tags (tree); 6946 extern void fixup_type_variants (tree); 6947 extern void fixup_attribute_variants (tree); 6948 extern void build_cdtor_clones (tree, bool, bool, bool); 6949 extern void clone_cdtor (tree, bool); 6950 extern tree copy_operator_fn (tree, tree_code code); 6951 extern void adjust_clone_args (tree); 6952 extern void deduce_noexcept_on_destructor (tree); 6953 extern bool uniquely_derived_from_p (tree, tree); 6954 extern bool publicly_uniquely_derived_p (tree, tree); 6955 extern tree common_enclosing_class (tree, tree); 6956 6957 /* in cvt.cc */ 6958 extern tree convert_to_reference (tree, tree, int, int, tree, 6959 tsubst_flags_t); 6960 extern tree convert_from_reference (tree); 6961 extern tree force_rvalue (tree, tsubst_flags_t); 6962 extern tree force_lvalue (tree, tsubst_flags_t); 6963 extern tree ocp_convert (tree, tree, int, int, 6964 tsubst_flags_t); 6965 extern tree cp_convert (tree, tree, tsubst_flags_t); 6966 extern tree cp_convert_and_check (tree, tree, tsubst_flags_t); 6967 extern tree cp_fold_convert (tree, tree); 6968 extern tree cp_get_callee (tree); 6969 extern tree cp_get_callee_fndecl (tree); 6970 extern tree cp_get_callee_fndecl_nofold (tree); 6971 extern tree cp_get_fndecl_from_callee (tree, bool fold = true); 6972 extern tree convert_to_void (tree, impl_conv_void, 6973 tsubst_flags_t); 6974 extern tree convert_force (tree, tree, int, 6975 tsubst_flags_t); 6976 extern tree build_expr_type_conversion (int, tree, bool); 6977 extern tree type_promotes_to (tree); 6978 extern bool can_convert_qual (tree, tree); 6979 extern tree perform_qualification_conversions (tree, tree); 6980 extern bool tx_safe_fn_type_p (tree); 6981 extern tree tx_unsafe_fn_variant (tree); 6982 extern bool fnptr_conv_p (tree, tree); 6983 extern tree strip_fnptr_conv (tree); 6984 6985 /* in name-lookup.cc */ 6986 extern void maybe_push_cleanup_level (tree); 6987 extern tree maybe_push_decl (tree); 6988 extern tree current_decl_namespace (void); 6989 6990 /* decl.cc */ 6991 extern tree poplevel (int, int, int); 6992 extern void cxx_init_decl_processing (void); 6993 enum cp_tree_node_structure_enum cp_tree_node_structure 6994 (union lang_tree_node *); 6995 extern void finish_scope (void); 6996 extern void push_switch (tree); 6997 extern void pop_switch (void); 6998 extern void note_break_stmt (void); 6999 extern bool note_iteration_stmt_body_start (void); 7000 extern void note_iteration_stmt_body_end (bool); 7001 extern void determine_local_discriminator (tree, tree = NULL_TREE); 7002 extern bool member_like_constrained_friend_p (tree); 7003 extern bool fns_correspond (tree, tree); 7004 extern int decls_match (tree, tree, bool = true); 7005 extern bool maybe_version_functions (tree, tree, bool); 7006 extern bool merge_default_template_args (tree, tree, bool); 7007 extern tree duplicate_decls (tree, tree, 7008 bool hiding = false, 7009 bool was_hidden = false); 7010 extern void mark_label_addressed (tree); 7011 extern tree declare_local_label (tree); 7012 extern tree define_label (location_t, tree); 7013 extern void check_goto (tree); 7014 extern bool check_omp_return (void); 7015 extern tree make_typename_type (tree, tree, enum tag_types, tsubst_flags_t); 7016 extern tree build_typename_type (tree, tree, tree, tag_types); 7017 extern tree make_unbound_class_template (tree, tree, tree, tsubst_flags_t); 7018 extern tree make_unbound_class_template_raw (tree, tree, tree); 7019 extern unsigned push_abi_namespace (tree node = abi_node); 7020 extern void pop_abi_namespace (unsigned flags, 7021 tree node = abi_node); 7022 extern tree build_library_fn_ptr (const char *, tree, int); 7023 extern tree build_cp_library_fn_ptr (const char *, tree, int); 7024 extern tree push_library_fn (tree, tree, tree, int); 7025 extern tree push_throw_library_fn (tree, tree); 7026 extern void warn_misplaced_attr_for_class_type (location_t location, 7027 tree class_type); 7028 extern tree check_tag_decl (cp_decl_specifier_seq *, bool); 7029 extern tree shadow_tag (cp_decl_specifier_seq *); 7030 extern tree groktypename (cp_decl_specifier_seq *, const cp_declarator *, bool); 7031 extern tree start_decl (const cp_declarator *, cp_decl_specifier_seq *, int, tree, tree, tree *); 7032 extern void start_decl_1 (tree, bool); 7033 extern bool check_array_initializer (tree, tree, tree); 7034 extern void omp_declare_variant_finalize (tree, tree); 7035 struct cp_decomp { tree decl; unsigned int count; }; 7036 extern void cp_finish_decl (tree, tree, bool, tree, int, cp_decomp * = nullptr); 7037 extern tree lookup_decomp_type (tree); 7038 extern void cp_finish_decomp (tree, cp_decomp *); 7039 extern int cp_complete_array_type (tree *, tree, bool); 7040 extern int cp_complete_array_type_or_error (tree *, tree, bool, tsubst_flags_t); 7041 extern tree build_ptrmemfunc_type (tree); 7042 extern tree build_ptrmem_type (tree, tree); 7043 /* the grokdeclarator prototype is in decl.h */ 7044 extern tree build_this_parm (tree, tree, cp_cv_quals); 7045 extern tree grokparms (tree, tree *); 7046 extern int copy_fn_p (const_tree); 7047 extern bool move_fn_p (const_tree); 7048 extern bool move_signature_fn_p (const_tree); 7049 extern tree get_scope_of_declarator (const cp_declarator *); 7050 extern void grok_special_member_properties (tree); 7051 extern bool grok_ctor_properties (const_tree, const_tree); 7052 extern bool grok_op_properties (tree, bool); 7053 extern tree xref_tag (tag_types, tree, 7054 TAG_how = TAG_how::CURRENT_ONLY, 7055 bool tpl_header_p = false); 7056 extern void xref_basetypes (tree, tree); 7057 extern tree start_enum (tree, tree, tree, tree, bool, bool *); 7058 extern void finish_enum_value_list (tree); 7059 extern void finish_enum (tree); 7060 extern tree build_enumerator (tree, tree, tree, tree, location_t); 7061 extern tree lookup_enumerator (tree, tree); 7062 extern bool start_preparsed_function (tree, tree, int); 7063 extern bool start_function (cp_decl_specifier_seq *, 7064 const cp_declarator *, tree); 7065 extern tree maybe_prepare_return_this (tree); 7066 extern void maybe_return_this (void); 7067 extern tree begin_function_body (void); 7068 extern void finish_function_body (tree); 7069 extern tree outer_curly_brace_block (tree); 7070 extern tree finish_function (bool); 7071 extern tree grokmethod (cp_decl_specifier_seq *, const cp_declarator *, tree); 7072 extern void maybe_register_incomplete_var (tree); 7073 extern void maybe_commonize_var (tree); 7074 extern void complete_vars (tree); 7075 extern tree static_fn_type (tree); 7076 extern void revert_static_member_fn (tree); 7077 extern void fixup_anonymous_aggr (tree); 7078 extern tree compute_array_index_type (tree, tree, tsubst_flags_t); 7079 extern tree check_default_argument (tree, tree, tsubst_flags_t); 7080 extern int wrapup_namespace_globals (); 7081 extern tree create_implicit_typedef (tree, tree); 7082 extern int local_variable_p (const_tree); 7083 extern tree get_cxa_atexit_fn_ptr_type (); 7084 extern tree register_dtor_fn (tree); 7085 extern tmpl_spec_kind current_tmpl_spec_kind (int); 7086 extern tree cxx_builtin_function (tree decl); 7087 extern tree cxx_builtin_function_ext_scope (tree decl); 7088 extern tree cxx_simulate_builtin_function_decl (tree); 7089 extern tree check_elaborated_type_specifier (enum tag_types, tree, bool); 7090 extern void warn_extern_redeclared_static (tree, tree); 7091 extern tree cxx_comdat_group (tree); 7092 extern bool cp_missing_noreturn_ok_p (tree); 7093 extern bool is_direct_enum_init (tree, tree); 7094 extern void initialize_artificial_var (tree, vec<constructor_elt, va_gc> *); 7095 extern tree check_var_type (tree, tree, location_t); 7096 extern tree reshape_init (tree, tree, tsubst_flags_t); 7097 extern tree next_aggregate_field (tree); 7098 extern tree next_subobject_field (tree); 7099 extern tree first_field (const_tree); 7100 extern tree fndecl_declared_return_type (tree); 7101 extern bool undeduced_auto_decl (tree); 7102 extern bool require_deduced_type (tree, tsubst_flags_t = tf_warning_or_error); 7103 7104 extern tree finish_case_label (location_t, tree, tree); 7105 extern tree cxx_maybe_build_cleanup (tree, tsubst_flags_t); 7106 extern bool check_array_designated_initializer (constructor_elt *, 7107 unsigned HOST_WIDE_INT); 7108 extern bool check_for_uninitialized_const_var (tree, bool, tsubst_flags_t); 7109 extern tree build_explicit_specifier (tree, tsubst_flags_t); 7110 extern void do_push_parm_decls (tree, tree, tree *); 7111 extern tree do_aggregate_paren_init (tree, tree); 7112 7113 /* in decl2.cc */ 7114 extern void record_mangling (tree, bool); 7115 extern void overwrite_mangling (tree, tree); 7116 extern void note_mangling_alias (tree, tree); 7117 extern void generate_mangling_aliases (void); 7118 extern tree build_memfn_type (tree, tree, cp_cv_quals, cp_ref_qualifier); 7119 extern tree build_pointer_ptrmemfn_type (tree); 7120 extern tree change_return_type (tree, tree); 7121 extern void maybe_retrofit_in_chrg (tree); 7122 extern void maybe_make_one_only (tree); 7123 extern bool vague_linkage_p (tree); 7124 extern void grokclassfn (tree, tree, 7125 enum overload_flags); 7126 extern tree grok_array_decl (location_t, tree, tree, 7127 vec<tree, va_gc> **, tsubst_flags_t); 7128 extern tree grok_omp_array_section (location_t, tree, tree, tree); 7129 extern tree delete_sanity (location_t, tree, tree, bool, 7130 int, tsubst_flags_t); 7131 extern tree check_classfn (tree, tree, tree); 7132 extern void check_member_template (tree); 7133 extern tree grokfield (const cp_declarator *, cp_decl_specifier_seq *, 7134 tree, bool, tree, tree); 7135 extern tree grokbitfield (const cp_declarator *, cp_decl_specifier_seq *, 7136 tree, tree, tree); 7137 extern tree splice_template_attributes (tree *, tree); 7138 extern bool any_dependent_type_attributes_p (tree); 7139 extern tree cp_reconstruct_complex_type (tree, tree); 7140 extern bool attributes_naming_typedef_ok (tree); 7141 extern void cplus_decl_attributes (tree *, tree, int); 7142 extern void finish_anon_union (tree); 7143 extern void cxx_post_compilation_parsing_cleanups (void); 7144 extern tree coerce_new_type (tree, location_t); 7145 extern void coerce_delete_type (tree, location_t); 7146 extern void comdat_linkage (tree); 7147 extern void determine_visibility (tree); 7148 extern void constrain_class_visibility (tree); 7149 extern void reset_type_linkage (tree); 7150 extern void tentative_decl_linkage (tree); 7151 extern void import_export_decl (tree); 7152 extern tree build_cleanup (tree); 7153 extern tree build_offset_ref_call_from_tree (tree, vec<tree, va_gc> **, 7154 tsubst_flags_t); 7155 extern bool decl_defined_p (tree); 7156 extern bool decl_constant_var_p (tree); 7157 extern bool decl_maybe_constant_var_p (tree); 7158 extern void no_linkage_error (tree); 7159 extern void check_default_args (tree); 7160 extern bool mark_used (tree, 7161 tsubst_flags_t = tf_warning_or_error); 7162 extern bool mark_single_function (tree, tsubst_flags_t); 7163 extern void finish_static_data_member_decl (tree, tree, bool, tree, int); 7164 extern tree cp_build_parm_decl (tree, tree, tree); 7165 extern void copy_linkage (tree, tree); 7166 extern tree get_guard (tree); 7167 extern tree get_guard_cond (tree, bool); 7168 extern tree set_guard (tree); 7169 extern bool var_needs_tls_wrapper (tree); 7170 extern tree maybe_get_tls_wrapper_call (tree); 7171 extern void mark_needed (tree); 7172 extern bool decl_needed_p (tree); 7173 extern void note_vague_linkage_fn (tree); 7174 extern void note_vague_linkage_variable (tree); 7175 extern tree build_artificial_parm (tree, tree, tree); 7176 extern bool possibly_inlined_p (tree); 7177 extern int parm_index (tree); 7178 extern tree vtv_start_verification_constructor_init_function (void); 7179 extern tree vtv_finish_verification_constructor_init_function (tree); 7180 extern void cp_check_const_attributes (tree); 7181 extern void maybe_propagate_warmth_attributes (tree, tree); 7182 7183 /* in error.cc */ 7184 extern const char *type_as_string (tree, int); 7185 extern const char *type_as_string_translate (tree, int); 7186 extern const char *decl_as_string (tree, int); 7187 extern const char *decl_as_string_translate (tree, int); 7188 extern const char *decl_as_dwarf_string (tree, int); 7189 extern const char *expr_as_string (tree, int); 7190 extern const char *expr_to_string (tree); 7191 extern const char *lang_decl_name (tree, int, bool); 7192 extern const char *lang_decl_dwarf_name (tree, int, bool); 7193 extern const char *language_to_string (enum languages); 7194 extern const char *class_key_or_enum_as_string (tree); 7195 extern void maybe_warn_variadic_templates (void); 7196 extern void maybe_warn_cpp0x (cpp0x_warn_str str, 7197 location_t = input_location); 7198 extern bool pedwarn_cxx98 (location_t, int, const char *, ...) ATTRIBUTE_GCC_DIAG(3,4); 7199 extern location_t location_of (tree); 7200 extern void qualified_name_lookup_error (tree, tree, tree, 7201 location_t); 7202 7203 /* in except.cc */ 7204 extern void init_exception_processing (void); 7205 extern tree expand_start_catch_block (tree); 7206 extern void expand_end_catch_block (void); 7207 extern tree build_exc_ptr (void); 7208 extern tree build_throw (location_t, tree, 7209 tsubst_flags_t); 7210 extern int nothrow_libfn_p (const_tree); 7211 extern void check_handlers (tree); 7212 extern tree finish_noexcept_expr (tree, tsubst_flags_t); 7213 extern bool expr_noexcept_p (tree, tsubst_flags_t); 7214 extern void perform_deferred_noexcept_checks (void); 7215 extern bool nothrow_spec_p (const_tree); 7216 extern bool type_noexcept_p (const_tree); 7217 extern bool type_throw_all_p (const_tree); 7218 extern tree build_noexcept_spec (tree, tsubst_flags_t); 7219 extern void choose_personality_routine (enum languages); 7220 extern tree build_must_not_throw_expr (tree,tree); 7221 extern tree eh_type_info (tree); 7222 extern tree begin_eh_spec_block (void); 7223 extern void finish_eh_spec_block (tree, tree); 7224 extern tree build_eh_type_type (tree); 7225 extern tree cp_protect_cleanup_actions (void); 7226 extern void maybe_splice_retval_cleanup (tree, bool); 7227 extern tree maybe_set_retval_sentinel (void); 7228 7229 extern tree template_parms_to_args (tree); 7230 extern tree template_parms_level_to_args (tree); 7231 extern tree generic_targs_for (tree); 7232 extern tree outer_template_args (const_tree); 7233 7234 /* in expr.cc */ 7235 extern tree cplus_expand_constant (tree); 7236 extern tree mark_use (tree expr, bool rvalue_p, bool read_p, 7237 location_t = UNKNOWN_LOCATION, 7238 bool reject_builtin = true); 7239 extern tree mark_rvalue_use (tree, 7240 location_t = UNKNOWN_LOCATION, 7241 bool reject_builtin = true); 7242 extern tree mark_lvalue_use (tree); 7243 extern tree mark_lvalue_use_nonread (tree); 7244 extern tree mark_type_use (tree); 7245 extern tree mark_discarded_use (tree); 7246 extern void mark_exp_read (tree); 7247 7248 /* friend.cc */ 7249 extern int is_friend (tree, tree); 7250 extern void make_friend_class (tree, tree, bool); 7251 extern void add_friend (tree, tree, bool); 7252 extern tree do_friend (tree, tree, tree, 7253 enum overload_flags, bool); 7254 7255 extern void set_global_friend (tree); 7256 extern bool is_global_friend (tree); 7257 7258 /* in init.cc */ 7259 extern tree find_temps_r (tree *, int *, void *); 7260 extern tree expand_member_init (tree); 7261 extern void emit_mem_initializers (tree); 7262 extern tree build_aggr_init (tree, tree, int, 7263 tsubst_flags_t); 7264 extern int is_class_type (tree, int); 7265 extern bool is_copy_initialization (tree); 7266 extern tree build_zero_init (tree, tree, bool); 7267 extern tree build_value_init (tree, tsubst_flags_t); 7268 extern tree build_value_init_noctor (tree, tsubst_flags_t); 7269 extern tree maybe_instantiate_nsdmi_init (tree, tsubst_flags_t); 7270 extern tree get_nsdmi (tree, bool, tsubst_flags_t); 7271 extern tree build_offset_ref (tree, tree, bool, 7272 tsubst_flags_t); 7273 extern tree throw_bad_array_new_length (void); 7274 extern bool type_has_new_extended_alignment (tree); 7275 extern unsigned malloc_alignment (void); 7276 extern tree build_new_constexpr_heap_type (tree, tree, tree); 7277 extern tree build_new (location_t, 7278 vec<tree, va_gc> **, tree, 7279 tree, vec<tree, va_gc> **, 7280 int, tsubst_flags_t); 7281 extern tree get_temp_regvar (tree, tree); 7282 extern tree build_vec_init (tree, tree, tree, bool, int, 7283 tsubst_flags_t, 7284 vec<tree, va_gc> ** = nullptr); 7285 extern tree build_delete (location_t, tree, tree, 7286 special_function_kind, 7287 int, int, tsubst_flags_t); 7288 extern void push_base_cleanups (void); 7289 extern tree build_vec_delete (location_t, tree, tree, 7290 special_function_kind, int, 7291 tsubst_flags_t); 7292 extern tree create_temporary_var (tree); 7293 extern void initialize_vtbl_ptrs (tree); 7294 extern tree scalar_constant_value (tree); 7295 extern tree decl_constant_value (tree, bool); 7296 extern tree decl_really_constant_value (tree, bool = true); 7297 extern int diagnose_uninitialized_cst_or_ref_member (tree, bool, bool); 7298 extern tree build_vtbl_address (tree); 7299 extern bool maybe_reject_flexarray_init (tree, tree); 7300 7301 /* in lex.cc */ 7302 extern void cxx_dup_lang_specific_decl (tree); 7303 extern tree unqualified_name_lookup_error (tree, 7304 location_t = UNKNOWN_LOCATION); 7305 extern tree unqualified_fn_lookup_error (cp_expr); 7306 extern tree make_conv_op_name (tree); 7307 extern tree build_lang_decl (enum tree_code, tree, tree); 7308 extern tree build_lang_decl_loc (location_t, enum tree_code, tree, tree); 7309 extern bool maybe_add_lang_decl_raw (tree, bool decomp_p); 7310 extern bool maybe_add_lang_type_raw (tree); 7311 extern void retrofit_lang_decl (tree); 7312 extern void fit_decomposition_lang_decl (tree, tree); 7313 extern tree copy_decl (tree CXX_MEM_STAT_INFO); 7314 extern tree copy_type (tree CXX_MEM_STAT_INFO); 7315 extern tree cxx_make_type (enum tree_code CXX_MEM_STAT_INFO); 7316 extern tree make_class_type (enum tree_code CXX_MEM_STAT_INFO); 7317 extern const char *get_identifier_kind_name (tree); 7318 extern void set_identifier_kind (tree, cp_identifier_kind); 7319 extern bool cxx_init (void); 7320 extern void cxx_finish (void); 7321 extern bool in_main_input_context (void); 7322 extern uintptr_t module_token_pre (cpp_reader *, const cpp_token *, uintptr_t); 7323 extern uintptr_t module_token_cdtor (cpp_reader *, uintptr_t); 7324 extern uintptr_t module_token_lang (int type, int keyword, tree value, 7325 location_t, uintptr_t); 7326 7327 /* in method.cc */ 7328 extern void init_method (void); 7329 extern tree make_thunk (tree, bool, tree, tree); 7330 extern void finish_thunk (tree); 7331 extern void use_thunk (tree, bool); 7332 extern bool trivial_fn_p (tree); 7333 extern tree forward_parm (tree); 7334 extern bool is_trivially_xible (enum tree_code, tree, tree); 7335 extern bool is_nothrow_xible (enum tree_code, tree, tree); 7336 extern bool is_xible (enum tree_code, tree, tree); 7337 extern bool is_convertible (tree, tree); 7338 extern bool is_nothrow_convertible (tree, tree); 7339 extern bool ref_xes_from_temporary (tree, tree, bool); 7340 extern tree get_defaulted_eh_spec (tree, tsubst_flags_t = tf_warning_or_error); 7341 extern bool maybe_explain_implicit_delete (tree); 7342 extern void explain_implicit_non_constexpr (tree); 7343 extern bool deduce_inheriting_ctor (tree); 7344 extern bool decl_remember_implicit_trigger_p (tree); 7345 extern void synthesize_method (tree); 7346 extern void maybe_synthesize_method (tree); 7347 extern tree lazily_declare_fn (special_function_kind, 7348 tree); 7349 extern tree skip_artificial_parms_for (const_tree, tree); 7350 extern int num_artificial_parms_for (const_tree); 7351 extern tree make_alias_for (tree, tree); 7352 extern tree get_copy_ctor (tree, tsubst_flags_t); 7353 extern tree get_copy_assign (tree); 7354 extern tree get_default_ctor (tree); 7355 extern tree get_dtor (tree, tsubst_flags_t); 7356 extern tree build_stub_object (tree); 7357 extern tree strip_inheriting_ctors (tree); 7358 extern tree inherited_ctor_binfo (tree); 7359 extern bool base_ctor_omit_inherited_parms (tree); 7360 extern bool ctor_omit_inherited_parms (tree); 7361 extern tree locate_ctor (tree); 7362 extern tree implicitly_declare_fn (special_function_kind, tree, 7363 bool, tree, tree); 7364 /* In module.cc */ 7365 class module_state; /* Forward declare. */ 7366 inline bool modules_p () { return flag_modules != 0; } 7367 7368 /* The kind of module or part thereof that we're in. */ 7369 enum module_kind_bits 7370 { 7371 MK_NAMED = 1 << 0, // TU is a named module 7372 MK_HEADER = 1 << 1, // TU is a header unit 7373 MK_INTERFACE = 1 << 2, // TU is an interface 7374 MK_PARTITION = 1 << 3, // TU is a partition 7375 7376 MK_PURVIEW = 1 << 4, // In purview of current module 7377 MK_ATTACH = 1 << 5, // Attaching to named module 7378 7379 MK_EXPORTING = 1 << 6, /* We are in an export region. */ 7380 }; 7381 7382 /* We do lots of bit-manipulation, so an unsigned is easier. */ 7383 extern unsigned module_kind; 7384 7385 inline bool module_p () 7386 { return module_kind & (MK_NAMED | MK_HEADER); } 7387 inline bool named_module_p () 7388 { return module_kind & MK_NAMED; } 7389 inline bool header_module_p () 7390 { return module_kind & MK_HEADER; } 7391 inline bool module_interface_p () 7392 { return module_kind & MK_INTERFACE; } 7393 inline bool module_partition_p () 7394 { return module_kind & MK_PARTITION; } 7395 inline bool module_has_cmi_p () 7396 { return module_kind & (MK_INTERFACE | MK_PARTITION); } 7397 7398 inline bool module_purview_p () 7399 { return module_kind & MK_PURVIEW; } 7400 inline bool module_attach_p () 7401 { return module_kind & MK_ATTACH; } 7402 7403 inline bool named_module_purview_p () 7404 { return named_module_p () && module_purview_p (); } 7405 inline bool named_module_attach_p () 7406 { return named_module_p () && module_attach_p (); } 7407 7408 /* We don't know if this TU will have a CMI while parsing the GMF, 7409 so tentatively assume that it might, for the purpose of determining 7410 whether no-linkage decls could be used by an importer. */ 7411 inline bool module_maybe_has_cmi_p () 7412 { return module_has_cmi_p () || (named_module_p () && !module_purview_p ()); } 7413 7414 /* We're currently exporting declarations. */ 7415 inline bool module_exporting_p () 7416 { return module_kind & MK_EXPORTING; } 7417 7418 extern module_state *get_module (tree name, module_state *parent = NULL, 7419 bool partition = false); 7420 extern bool module_may_redeclare (tree olddecl, tree newdecl = NULL); 7421 7422 extern bool module_global_init_needed (); 7423 extern bool module_determine_import_inits (); 7424 extern void module_add_import_initializers (); 7425 7426 /* Where the namespace-scope decl was originally declared. */ 7427 extern void set_originating_module (tree, bool friend_p = false); 7428 extern tree get_originating_module_decl (tree) ATTRIBUTE_PURE; 7429 extern int get_originating_module (tree, bool for_mangle = false) ATTRIBUTE_PURE; 7430 extern unsigned get_importing_module (tree, bool = false) ATTRIBUTE_PURE; 7431 7432 /* Where current instance of the decl got declared/defined/instantiated. */ 7433 extern void set_instantiating_module (tree); 7434 extern void set_defining_module (tree); 7435 extern void maybe_key_decl (tree ctx, tree decl); 7436 extern void propagate_defining_module (tree decl, tree orig); 7437 extern void remove_defining_module (tree decl); 7438 7439 extern void mangle_module (int m, bool include_partition); 7440 extern void mangle_module_fini (); 7441 extern void lazy_load_binding (unsigned mod, tree ns, tree id, 7442 binding_slot *bslot); 7443 extern void lazy_load_pendings (tree decl); 7444 extern module_state *preprocess_module (module_state *, location_t, 7445 bool in_purview, 7446 bool is_import, bool export_p, 7447 cpp_reader *reader); 7448 extern void preprocessed_module (cpp_reader *reader); 7449 extern void import_module (module_state *, location_t, bool export_p, 7450 tree attr, cpp_reader *); 7451 extern void declare_module (module_state *, location_t, bool export_p, 7452 tree attr, cpp_reader *); 7453 extern void init_modules (cpp_reader *); 7454 extern void fini_modules (cpp_reader *, void *cookie, bool); 7455 extern void maybe_check_all_macros (cpp_reader *); 7456 extern void *finish_module_processing (cpp_reader *); 7457 extern char const *module_name (unsigned, bool header_ok); 7458 extern bitmap get_import_bitmap (); 7459 extern bitmap visible_instantiation_path (bitmap *); 7460 extern void module_begin_main_file (cpp_reader *, line_maps *, 7461 const line_map_ordinary *); 7462 extern void module_preprocess_options (cpp_reader *); 7463 extern bool handle_module_option (unsigned opt, const char *arg, int value); 7464 7465 /* In optimize.cc */ 7466 extern tree clone_attrs (tree); 7467 extern bool maybe_clone_body (tree); 7468 7469 /* In parser.cc */ 7470 extern tree cp_convert_range_for (tree, tree, tree, cp_decomp *, bool, 7471 tree, bool); 7472 extern void cp_convert_omp_range_for (tree &, tree &, tree &, 7473 tree &, tree &, tree &, tree &, tree &); 7474 extern void cp_finish_omp_range_for (tree, tree); 7475 extern bool cp_maybe_parse_omp_decl (tree, tree); 7476 extern bool parsing_nsdmi (void); 7477 extern bool parsing_function_declarator (); 7478 extern bool parsing_default_capturing_generic_lambda_in_template (void); 7479 extern void inject_this_parameter (tree, cp_cv_quals); 7480 extern location_t defparse_location (tree); 7481 extern void maybe_show_extern_c_location (void); 7482 extern bool literal_integer_zerop (const_tree); 7483 extern tree attr_chainon (tree, tree); 7484 7485 /* in pt.cc */ 7486 extern tree canonical_type_parameter (tree); 7487 extern void push_access_scope (tree); 7488 extern void pop_access_scope (tree); 7489 extern bool check_template_shadow (tree); 7490 extern bool check_auto_in_tmpl_args (tree, tree); 7491 extern tree get_innermost_template_args (tree, int); 7492 extern void maybe_begin_member_template_processing (tree); 7493 extern void maybe_end_member_template_processing (void); 7494 extern tree finish_member_template_decl (tree); 7495 extern void begin_template_parm_list (void); 7496 extern bool begin_specialization (void); 7497 extern void reset_specialization (void); 7498 extern void end_specialization (void); 7499 extern void begin_explicit_instantiation (void); 7500 extern void end_explicit_instantiation (void); 7501 extern void check_unqualified_spec_or_inst (tree, location_t); 7502 extern tree check_explicit_specialization (tree, tree, int, int, 7503 tree = NULL_TREE); 7504 extern int num_template_headers_for_class (tree); 7505 extern void check_template_variable (tree); 7506 extern tree make_auto (void); 7507 extern tree make_decltype_auto (void); 7508 extern tree make_constrained_auto (tree, tree); 7509 extern tree make_constrained_decltype_auto (tree, tree); 7510 extern tree make_template_placeholder (tree); 7511 extern tree make_cast_auto (void); 7512 extern bool template_placeholder_p (tree); 7513 extern bool ctad_template_p (tree); 7514 extern bool unparenthesized_id_or_class_member_access_p (tree); 7515 extern tree do_auto_deduction (tree, tree, tree, 7516 tsubst_flags_t 7517 = tf_warning_or_error, 7518 auto_deduction_context 7519 = adc_unspecified, 7520 tree = NULL_TREE, 7521 int = LOOKUP_NORMAL, 7522 tree = NULL_TREE); 7523 extern tree type_uses_auto (tree); 7524 extern tree type_uses_auto_or_concept (tree); 7525 extern void append_type_to_template_for_access_check (tree, tree, tree, 7526 location_t); 7527 extern tree convert_generic_types_to_packs (tree, int, int); 7528 extern tree splice_late_return_type (tree, tree); 7529 extern bool is_auto (const_tree); 7530 extern tree process_template_parm (tree, location_t, tree, 7531 bool, bool); 7532 extern tree end_template_parm_list (tree); 7533 extern void end_template_parm_list (void); 7534 extern void end_template_decl (void); 7535 extern tree maybe_update_decl_type (tree, tree); 7536 extern bool check_default_tmpl_args (tree, tree, bool, bool, int); 7537 extern tree push_template_decl (tree, bool is_friend = false); 7538 extern tree add_inherited_template_parms (tree, tree); 7539 extern void template_parm_level_and_index (tree, int*, int*); 7540 extern bool redeclare_class_template (tree, tree, tree); 7541 extern tree lookup_template_class (tree, tree, tree, tree, 7542 int, tsubst_flags_t); 7543 extern tree lookup_template_function (tree, tree); 7544 extern tree lookup_template_variable (tree, tree, tsubst_flags_t); 7545 extern bool uses_template_parms (tree); 7546 extern bool uses_template_parms_level (tree, int); 7547 extern bool uses_outer_template_parms_in_constraints (tree, tree = NULL_TREE); 7548 extern bool need_generic_capture (void); 7549 extern tree instantiate_class_template (tree); 7550 extern tree instantiate_template (tree, tree, tsubst_flags_t); 7551 extern tree fn_type_unification (tree, tree, tree, 7552 const tree *, unsigned int, 7553 tree, unification_kind_t, int, 7554 struct conversion **, 7555 bool, bool); 7556 extern void mark_decl_instantiated (tree, int); 7557 extern int more_specialized_fn (tree, tree, int); 7558 extern tree type_targs_deducible_from (tree, tree); 7559 extern void do_decl_instantiation (tree, tree); 7560 extern void do_type_instantiation (tree, tree, tsubst_flags_t); 7561 extern bool always_instantiate_p (tree); 7562 extern bool maybe_instantiate_noexcept (tree, tsubst_flags_t = tf_warning_or_error); 7563 extern tree instantiate_decl (tree, bool, bool); 7564 extern void maybe_instantiate_decl (tree); 7565 extern int comp_template_parms (const_tree, const_tree); 7566 extern bool template_heads_equivalent_p (const_tree, const_tree); 7567 extern bool builtin_pack_fn_p (tree); 7568 extern tree uses_parameter_packs (tree); 7569 extern bool template_parameter_pack_p (const_tree); 7570 extern bool function_parameter_pack_p (const_tree); 7571 extern bool function_parameter_expanded_from_pack_p (tree, tree); 7572 extern tree make_pack_expansion (tree, tsubst_flags_t = tf_warning_or_error); 7573 extern bool check_for_bare_parameter_packs (tree, location_t = UNKNOWN_LOCATION); 7574 extern tree build_template_info (tree, tree); 7575 extern tree get_template_info (const_tree); 7576 extern int template_class_depth (tree); 7577 extern int is_specialization_of (tree, tree); 7578 extern bool is_specialization_of_friend (tree, tree); 7579 extern bool comp_template_args (tree, tree, tree * = NULL, 7580 tree * = NULL); 7581 extern int template_args_equal (tree, tree); 7582 extern tree maybe_process_partial_specialization (tree); 7583 extern tree most_specialized_instantiation (tree); 7584 extern tree most_specialized_partial_spec (tree, tsubst_flags_t, bool = false); 7585 extern void print_candidates (tree); 7586 extern void instantiate_pending_templates (int); 7587 extern tree tsubst_default_argument (tree, int, tree, tree, 7588 tsubst_flags_t); 7589 extern tree tsubst (tree, tree, tsubst_flags_t, tree); 7590 extern tree tsubst_expr (tree, tree, tsubst_flags_t, tree); 7591 extern tree tsubst_pack_expansion (tree, tree, tsubst_flags_t, tree); 7592 extern tree tsubst_argument_pack (tree, tree, tsubst_flags_t, tree); 7593 extern tree tsubst_template_args (tree, tree, tsubst_flags_t, tree); 7594 extern tree tsubst_template_arg (tree, tree, tsubst_flags_t, tree); 7595 extern tree tsubst_function_parms (tree, tree, tsubst_flags_t, tree); 7596 extern tree most_general_template (const_tree); 7597 extern tree get_mostly_instantiated_function_type (tree); 7598 extern bool problematic_instantiation_changed (void); 7599 extern void record_last_problematic_instantiation (void); 7600 extern struct tinst_level *current_instantiation(void); 7601 extern bool instantiating_current_function_p (void); 7602 extern tree maybe_get_template_decl_from_type_decl (tree); 7603 extern int processing_template_parmlist; 7604 extern bool dependent_type_p (tree); 7605 extern bool dependent_scope_p (tree); 7606 extern bool dependentish_scope_p (tree); 7607 extern bool any_dependent_template_arguments_p (const_tree); 7608 extern bool any_erroneous_template_args_p (const_tree); 7609 extern bool dependent_template_p (tree); 7610 extern bool dependent_template_id_p (tree, tree); 7611 extern bool type_dependent_expression_p (tree); 7612 extern bool type_dependent_object_expression_p (tree); 7613 extern bool any_type_dependent_arguments_p (const vec<tree, va_gc> *); 7614 extern bool any_type_dependent_elements_p (const_tree); 7615 extern bool type_dependent_expression_p_push (tree); 7616 extern bool value_dependent_expression_p (tree); 7617 extern bool instantiation_dependent_uneval_expression_p (tree); 7618 extern bool any_value_dependent_elements_p (const_tree); 7619 extern bool dependent_omp_for_p (tree, tree, tree, tree); 7620 extern tree resolve_typename_type (tree, bool); 7621 extern tree template_for_substitution (tree); 7622 extern bool reregister_specialization (tree, tree, tree); 7623 extern tree instantiate_non_dependent_expr (tree, tsubst_flags_t = tf_error); 7624 extern tree instantiate_non_dependent_expr_internal (tree, tsubst_flags_t); 7625 extern tree instantiate_non_dependent_or_null (tree); 7626 extern bool variable_template_specialization_p (tree); 7627 extern bool alias_type_or_template_p (tree); 7628 enum { nt_opaque = false, nt_transparent = true }; 7629 extern tree alias_template_specialization_p (const_tree, bool); 7630 extern tree dependent_alias_template_spec_p (const_tree, bool); 7631 extern tree get_template_parm_object (tree expr, tree mangle); 7632 extern tree tparm_object_argument (tree); 7633 extern bool explicit_class_specialization_p (tree); 7634 extern bool push_tinst_level (tree); 7635 extern bool push_tinst_level (tree, tree); 7636 extern bool push_tinst_level_loc (tree, location_t); 7637 extern bool push_tinst_level_loc (tree, tree, location_t); 7638 extern void pop_tinst_level (void); 7639 extern struct tinst_level *outermost_tinst_level(void); 7640 extern bool non_templated_friend_p (tree); 7641 extern void init_template_processing (void); 7642 extern void print_template_statistics (void); 7643 bool template_template_parameter_p (const_tree); 7644 bool template_type_parameter_p (const_tree); 7645 extern bool primary_template_specialization_p (const_tree); 7646 extern tree get_primary_template_innermost_parameters (const_tree); 7647 extern tree get_template_innermost_arguments (const_tree); 7648 extern tree get_template_argument_pack_elems (const_tree); 7649 extern tree get_function_template_decl (const_tree); 7650 extern tree resolve_nondeduced_context (tree, tsubst_flags_t); 7651 extern tree resolve_nondeduced_context_or_error (tree, tsubst_flags_t); 7652 extern hashval_t iterative_hash_template_arg (tree arg, hashval_t val); 7653 extern tree coerce_template_parms (tree, tree, tree, tsubst_flags_t, 7654 bool = true); 7655 extern tree canonicalize_type_argument (tree, tsubst_flags_t); 7656 extern void register_local_identity (tree); 7657 extern void register_local_specialization (tree, tree); 7658 extern tree retrieve_local_specialization (tree); 7659 extern void register_parameter_specializations (tree, tree); 7660 extern tree extract_fnparm_pack (tree, tree *); 7661 extern tree template_parm_to_arg (tree); 7662 extern tree dguide_name (tree); 7663 extern bool dguide_name_p (tree); 7664 extern bool deduction_guide_p (const_tree); 7665 extern bool copy_guide_p (const_tree); 7666 extern bool template_guide_p (const_tree); 7667 extern bool builtin_guide_p (const_tree); 7668 extern bool inherited_guide_p (const_tree); 7669 extern void store_explicit_specifier (tree, tree); 7670 extern tree lookup_explicit_specifier (tree); 7671 extern tree lookup_imported_hidden_friend (tree); 7672 extern void walk_specializations (bool, 7673 void (*)(bool, spec_entry *, 7674 void *), 7675 void *); 7676 extern tree match_mergeable_specialization (bool is_decl, spec_entry *); 7677 extern unsigned get_mergeable_specialization_flags (tree tmpl, tree spec); 7678 extern void add_mergeable_specialization (bool is_decl, spec_entry *, 7679 tree outer, unsigned); 7680 extern tree add_to_template_args (tree, tree); 7681 extern tree add_outermost_template_args (tree, tree); 7682 extern tree add_extra_args (tree, tree, tsubst_flags_t, tree); 7683 extern tree build_extra_args (tree, tree, tsubst_flags_t); 7684 7685 /* in rtti.cc */ 7686 /* A vector of all tinfo decls that haven't been emitted yet. */ 7687 extern GTY(()) vec<tree, va_gc> *unemitted_tinfo_decls; 7688 7689 extern void init_rtti_processing (void); 7690 extern tree build_typeid (tree, tsubst_flags_t); 7691 extern tree get_tinfo_decl_direct (tree, tree, int); 7692 extern tree get_tinfo_decl (tree); 7693 extern tree get_typeid (tree, tsubst_flags_t); 7694 extern tree build_headof (tree); 7695 extern tree build_dynamic_cast (location_t, tree, tree, 7696 tsubst_flags_t); 7697 extern void emit_support_tinfos (void); 7698 extern bool emit_tinfo_decl (tree); 7699 extern unsigned get_pseudo_tinfo_index (tree); 7700 extern tree get_pseudo_tinfo_type (unsigned); 7701 extern tree build_if_nonnull (tree, tree, tsubst_flags_t); 7702 7703 /* in search.cc */ 7704 extern tree get_parent_with_private_access (tree decl, tree binfo); 7705 extern bool accessible_base_p (tree, tree, bool); 7706 extern tree lookup_base (tree, tree, base_access, 7707 base_kind *, tsubst_flags_t, 7708 HOST_WIDE_INT = -1); 7709 extern tree dcast_base_hint (tree, tree); 7710 extern int accessible_p (tree, tree, bool); 7711 extern int accessible_in_template_p (tree, tree); 7712 extern tree lookup_field (tree, tree, int, bool); 7713 extern tree lookup_fnfields (tree, tree, int, tsubst_flags_t); 7714 extern tree lookup_member (tree, tree, int, bool, 7715 tsubst_flags_t, 7716 access_failure_info *afi = NULL); 7717 extern tree lookup_member_fuzzy (tree, tree, bool); 7718 extern tree locate_field_accessor (tree, tree, bool); 7719 extern int look_for_overrides (tree, tree); 7720 extern void get_pure_virtuals (tree); 7721 extern void maybe_suppress_debug_info (tree); 7722 extern void note_debug_info_needed (tree); 7723 extern tree current_scope (void); 7724 extern int at_function_scope_p (void); 7725 extern bool at_class_scope_p (void); 7726 extern bool at_namespace_scope_p (void); 7727 extern tree context_for_name_lookup (tree); 7728 extern tree type_context_for_name_lookup (tree); 7729 extern tree lookup_conversions (tree); 7730 extern tree binfo_from_vbase (tree); 7731 extern tree binfo_for_vbase (tree, tree); 7732 extern tree look_for_overrides_here (tree, tree); 7733 #define dfs_skip_bases ((tree)1) 7734 extern tree dfs_walk_all (tree, tree (*) (tree, void *), 7735 tree (*) (tree, void *), void *); 7736 extern tree dfs_walk_once (tree, tree (*) (tree, void *), 7737 tree (*) (tree, void *), void *); 7738 extern tree binfo_via_virtual (tree, tree); 7739 extern bool binfo_direct_p (tree); 7740 extern tree build_baselink (tree, tree, tree, tree); 7741 extern tree adjust_result_of_qualified_name_lookup 7742 (tree, tree, tree); 7743 extern tree copied_binfo (tree, tree); 7744 extern tree original_binfo (tree, tree); 7745 extern bool shared_member_p (tree); 7746 extern bool any_dependent_bases_p (tree = current_nonlambda_class_type ()); 7747 extern bool maybe_check_overriding_exception_spec (tree, tree); 7748 7749 /* in semantics.cc */ 7750 extern void push_deferring_access_checks (deferring_kind); 7751 extern void resume_deferring_access_checks (void); 7752 extern void stop_deferring_access_checks (void); 7753 extern void pop_deferring_access_checks (void); 7754 extern vec<deferred_access_check, va_gc> *get_deferred_access_checks (void); 7755 extern void reopen_deferring_access_checks (vec<deferred_access_check, va_gc> *); 7756 extern void pop_to_parent_deferring_access_checks (void); 7757 extern bool perform_access_checks (vec<deferred_access_check, va_gc> *, 7758 tsubst_flags_t); 7759 extern bool perform_deferred_access_checks (tsubst_flags_t); 7760 extern bool perform_or_defer_access_check (tree, tree, tree, 7761 tsubst_flags_t, 7762 access_failure_info *afi = NULL); 7763 7764 /* RAII sentinel to ensures that deferred access checks are popped before 7765 a function returns. */ 7766 7767 class deferring_access_check_sentinel 7768 { 7769 public: 7770 deferring_access_check_sentinel (enum deferring_kind kind = dk_deferred) 7771 { 7772 push_deferring_access_checks (kind); 7773 } 7774 ~deferring_access_check_sentinel () 7775 { 7776 pop_deferring_access_checks (); 7777 } 7778 }; 7779 7780 extern int stmts_are_full_exprs_p (void); 7781 extern void init_cp_semantics (void); 7782 extern tree do_poplevel (tree); 7783 extern void break_maybe_infinite_loop (void); 7784 extern void add_decl_expr (tree); 7785 extern tree maybe_cleanup_point_expr_void (tree); 7786 extern tree finish_expr_stmt (tree); 7787 extern tree begin_if_stmt (void); 7788 extern tree finish_if_stmt_cond (tree, tree); 7789 extern tree finish_then_clause (tree); 7790 extern void begin_else_clause (tree); 7791 extern void finish_else_clause (tree); 7792 extern void finish_if_stmt (tree); 7793 extern tree begin_while_stmt (void); 7794 extern void finish_while_stmt_cond (tree, tree, bool, tree, bool); 7795 extern void finish_while_stmt (tree); 7796 extern tree begin_do_stmt (void); 7797 extern void finish_do_body (tree); 7798 extern void finish_do_stmt (tree, tree, bool, tree, bool); 7799 extern tree finish_return_stmt (tree); 7800 extern tree begin_for_scope (tree *); 7801 extern tree begin_for_stmt (tree, tree); 7802 extern void finish_init_stmt (tree); 7803 extern void finish_for_cond (tree, tree, bool, tree, bool); 7804 extern void finish_for_expr (tree, tree); 7805 extern void finish_for_stmt (tree); 7806 extern tree begin_range_for_stmt (tree, tree); 7807 extern void finish_range_for_decl (tree, tree, tree); 7808 extern void finish_range_for_stmt (tree); 7809 extern tree finish_break_stmt (void); 7810 extern tree finish_continue_stmt (void); 7811 extern tree begin_switch_stmt (void); 7812 extern void finish_switch_cond (tree, tree); 7813 extern void finish_switch_stmt (tree); 7814 extern tree finish_goto_stmt (tree); 7815 extern tree begin_try_block (void); 7816 extern void finish_try_block (tree); 7817 extern void finish_handler_sequence (tree); 7818 extern tree begin_function_try_block (tree *); 7819 extern void finish_function_try_block (tree); 7820 extern void finish_function_handler_sequence (tree, tree); 7821 extern void finish_cleanup_try_block (tree); 7822 extern tree begin_handler (void); 7823 extern void finish_handler_parms (tree, tree); 7824 extern void finish_handler (tree); 7825 extern void finish_cleanup (tree, tree); 7826 extern bool is_this_parameter (tree); 7827 extern bool is_object_parameter (tree); 7828 7829 enum { 7830 BCS_NORMAL = 0, 7831 BCS_NO_SCOPE = 1, 7832 BCS_TRY_BLOCK = 2, 7833 BCS_FN_BODY = 4, 7834 BCS_TRANSACTION = 8, 7835 BCS_STMT_EXPR = 16 7836 }; 7837 extern tree begin_compound_stmt (unsigned int); 7838 7839 extern void finish_compound_stmt (tree); 7840 extern tree finish_asm_stmt (location_t, int, tree, tree, 7841 tree, tree, tree, bool); 7842 extern tree finish_label_stmt (tree); 7843 extern void finish_label_decl (tree); 7844 extern cp_expr finish_parenthesized_expr (cp_expr); 7845 extern tree force_paren_expr (tree, bool = false); 7846 inline tree force_paren_expr_uneval (tree t) 7847 { return force_paren_expr (t, true); } 7848 extern tree maybe_undo_parenthesized_ref (tree); 7849 extern tree finish_non_static_data_member (tree, tree, tree, 7850 tsubst_flags_t = tf_warning_or_error); 7851 extern tree begin_stmt_expr (void); 7852 extern tree finish_stmt_expr_expr (tree, tree); 7853 extern tree finish_stmt_expr (tree, bool); 7854 extern tree stmt_expr_value_expr (tree); 7855 bool empty_expr_stmt_p (tree); 7856 extern cp_expr perform_koenig_lookup (cp_expr, vec<tree, va_gc> *, 7857 tsubst_flags_t); 7858 extern tree finish_call_expr (tree, vec<tree, va_gc> **, bool, 7859 bool, tsubst_flags_t); 7860 extern tree lookup_and_finish_template_variable (tree, tree, tsubst_flags_t = tf_warning_or_error); 7861 extern tree finish_template_variable (tree, tsubst_flags_t = tf_warning_or_error); 7862 extern cp_expr finish_increment_expr (cp_expr, enum tree_code); 7863 extern tree finish_this_expr (void); 7864 extern tree finish_pseudo_destructor_expr (tree, tree, tree, location_t); 7865 extern cp_expr finish_unary_op_expr (location_t, enum tree_code, cp_expr, 7866 tsubst_flags_t); 7867 /* Whether this call to finish_compound_literal represents a C++11 functional 7868 cast or a C99 compound literal. */ 7869 enum fcl_t { fcl_functional, fcl_c99 }; 7870 extern tree finish_compound_literal (tree, tree, tsubst_flags_t, fcl_t = fcl_functional); 7871 extern tree finish_fname (tree); 7872 extern void finish_translation_unit (void); 7873 extern tree finish_template_type_parm (tree, tree); 7874 extern tree finish_template_template_parm (tree, tree); 7875 extern tree begin_class_definition (tree); 7876 extern void finish_template_decl (tree); 7877 extern tree finish_template_type (tree, tree, int); 7878 extern tree finish_base_specifier (tree, tree, bool); 7879 extern void finish_member_declaration (tree); 7880 extern bool outer_automatic_var_p (tree); 7881 extern tree process_outer_var_ref (tree, tsubst_flags_t, bool force_use = false); 7882 extern cp_expr finish_id_expression (tree, tree, tree, 7883 cp_id_kind *, 7884 bool, bool, bool *, 7885 bool, bool, bool, bool, 7886 const char **, 7887 location_t); 7888 extern tree finish_typeof (tree); 7889 extern tree finish_underlying_type (tree); 7890 extern tree calculate_bases (tree, tsubst_flags_t); 7891 extern tree finish_bases (tree, bool); 7892 extern tree calculate_direct_bases (tree, tsubst_flags_t); 7893 extern tree finish_offsetof (tree, tree, location_t); 7894 extern void finish_decl_cleanup (tree, tree); 7895 extern void finish_eh_cleanup (tree); 7896 extern void emit_associated_thunks (tree); 7897 extern void finish_mem_initializers (tree); 7898 extern tree check_template_template_default_arg (tree); 7899 extern bool expand_or_defer_fn_1 (tree); 7900 extern void expand_or_defer_fn (tree); 7901 extern bool check_accessibility_of_qualified_id (tree, tree, tree, tsubst_flags_t); 7902 extern tree finish_qualified_id_expr (tree, tree, bool, bool, 7903 bool, bool, tsubst_flags_t); 7904 extern void simplify_aggr_init_expr (tree *); 7905 extern void finalize_nrv (tree, tree); 7906 extern tree omp_reduction_id (enum tree_code, tree, tree); 7907 extern tree cp_remove_omp_priv_cleanup_stmt (tree *, int *, void *); 7908 extern bool cp_check_omp_declare_reduction (tree); 7909 extern void finish_omp_declare_simd_methods (tree); 7910 extern tree finish_omp_clauses (tree, enum c_omp_region_type); 7911 extern tree push_omp_privatization_clauses (bool); 7912 extern void pop_omp_privatization_clauses (tree); 7913 extern void save_omp_privatization_clauses (vec<tree> &); 7914 extern void restore_omp_privatization_clauses (vec<tree> &); 7915 extern void finish_omp_threadprivate (tree); 7916 extern tree begin_omp_structured_block (void); 7917 extern tree finish_omp_structured_block (tree); 7918 extern tree finish_oacc_data (tree, tree); 7919 extern tree finish_oacc_host_data (tree, tree); 7920 extern tree finish_omp_construct (enum tree_code, tree, tree); 7921 extern tree begin_omp_parallel (void); 7922 extern tree finish_omp_parallel (tree, tree); 7923 extern tree begin_omp_task (void); 7924 extern tree finish_omp_task (tree, tree); 7925 extern tree finish_omp_for (location_t, enum tree_code, 7926 tree, tree, tree, tree, tree, 7927 tree, tree, vec<tree> *, tree); 7928 extern tree finish_omp_for_block (tree, tree); 7929 extern void finish_omp_atomic (location_t, enum tree_code, 7930 enum tree_code, tree, tree, 7931 tree, tree, tree, tree, tree, 7932 enum omp_memory_order, bool); 7933 extern void finish_omp_barrier (void); 7934 extern void finish_omp_depobj (location_t, tree, 7935 enum omp_clause_depend_kind, 7936 tree); 7937 extern void finish_omp_flush (int); 7938 extern void finish_omp_taskwait (void); 7939 extern void finish_omp_taskyield (void); 7940 extern void finish_omp_cancel (tree); 7941 extern void finish_omp_cancellation_point (tree); 7942 extern tree omp_privatize_field (tree, bool); 7943 extern tree begin_transaction_stmt (location_t, tree *, int); 7944 extern void finish_transaction_stmt (tree, tree, int, tree); 7945 extern tree build_transaction_expr (location_t, tree, int, tree); 7946 extern bool cxx_omp_create_clause_info (tree, tree, bool, bool, 7947 bool, bool); 7948 extern tree baselink_for_fns (tree); 7949 extern void finish_static_assert (tree, tree, location_t, 7950 bool, bool); 7951 extern tree finish_decltype_type (tree, bool, tsubst_flags_t); 7952 extern tree fold_builtin_is_corresponding_member (location_t, int, tree *); 7953 extern tree fold_builtin_is_pointer_inverconvertible_with_class (location_t, int, tree *); 7954 extern tree finish_trait_expr (location_t, enum cp_trait_kind, tree, tree); 7955 extern tree finish_trait_type (enum cp_trait_kind, tree, tree, tsubst_flags_t); 7956 extern tree build_lambda_expr (void); 7957 extern tree build_lambda_object (tree); 7958 extern tree begin_lambda_type (tree); 7959 extern tree lambda_capture_field_type (tree, bool, bool); 7960 extern tree lambda_proxy_type (tree); 7961 extern tree lambda_function (tree); 7962 extern void apply_deduced_return_type (tree, tree); 7963 extern tree add_capture (tree, tree, tree, bool, bool, unsigned *); 7964 extern tree add_default_capture (tree, tree, tree); 7965 extern void insert_capture_proxy (tree); 7966 extern void insert_pending_capture_proxies (void); 7967 extern bool is_capture_proxy (tree); 7968 extern bool is_normal_capture_proxy (tree); 7969 extern bool is_constant_capture_proxy (tree); 7970 extern void register_capture_members (tree); 7971 extern tree lambda_expr_this_capture (tree, int); 7972 extern void maybe_generic_this_capture (tree, tree); 7973 extern tree maybe_resolve_dummy (tree, bool); 7974 extern tree current_nonlambda_function (void); 7975 extern tree nonlambda_method_basetype (void); 7976 extern tree current_nonlambda_scope (void); 7977 extern tree current_lambda_expr (void); 7978 extern bool generic_lambda_fn_p (tree); 7979 extern tree do_dependent_capture (tree, bool = false); 7980 extern bool lambda_fn_in_template_p (tree); 7981 extern void maybe_add_lambda_conv_op (tree); 7982 extern bool is_lambda_ignored_entity (tree); 7983 extern bool lambda_static_thunk_p (tree); 7984 extern bool call_from_lambda_thunk_p (tree); 7985 extern tree finish_builtin_launder (location_t, tree, 7986 tsubst_flags_t); 7987 extern tree cp_build_vec_convert (tree, location_t, tree, 7988 tsubst_flags_t); 7989 extern tree cp_build_bit_cast (location_t, tree, tree, 7990 tsubst_flags_t); 7991 extern void start_lambda_scope (tree decl); 7992 extern void finish_lambda_scope (void); 7993 extern void record_lambda_scope (tree lambda); 7994 extern void record_lambda_scope_discriminator (tree lambda); 7995 extern void record_lambda_scope_sig_discriminator (tree lambda, tree fn); 7996 extern tree start_lambda_function (tree fn, tree lambda_expr); 7997 extern void finish_lambda_function (tree body); 7998 extern bool regenerated_lambda_fn_p (tree); 7999 extern tree lambda_regenerating_args (tree); 8000 extern tree most_general_lambda (tree); 8001 extern tree finish_omp_target (location_t, tree, tree, bool); 8002 extern void finish_omp_target_clauses (location_t, tree, tree *); 8003 extern void maybe_warn_unparenthesized_assignment (tree, bool, tsubst_flags_t); 8004 extern tree cp_check_pragma_unroll (location_t, tree); 8005 8006 /* in tree.cc */ 8007 extern int cp_tree_operand_length (const_tree); 8008 extern int cp_tree_code_length (enum tree_code); 8009 extern void cp_free_lang_data (tree t); 8010 extern tree force_target_expr (tree, tree, tsubst_flags_t); 8011 extern tree build_target_expr_with_type (tree, tree, tsubst_flags_t); 8012 extern void lang_check_failed (const char *, int, 8013 const char *) ATTRIBUTE_NORETURN 8014 ATTRIBUTE_COLD; 8015 extern tree stabilize_expr (tree, tree *); 8016 extern void stabilize_call (tree, tree *); 8017 extern bool stabilize_init (tree, tree *); 8018 extern tree add_stmt_to_compound (tree, tree); 8019 extern void init_tree (void); 8020 extern bool pod_type_p (const_tree); 8021 extern bool layout_pod_type_p (const_tree); 8022 extern bool std_layout_type_p (const_tree); 8023 extern bool trivial_type_p (const_tree); 8024 extern bool trivially_copyable_p (const_tree); 8025 extern bool type_has_unique_obj_representations (const_tree); 8026 extern bool scalarish_type_p (const_tree); 8027 extern bool structural_type_p (tree, bool = false); 8028 extern bool type_has_nontrivial_default_init (const_tree); 8029 extern bool type_has_nontrivial_copy_init (const_tree); 8030 extern void maybe_warn_parm_abi (tree, location_t); 8031 extern bool class_tmpl_impl_spec_p (const_tree); 8032 extern int zero_init_p (const_tree); 8033 extern bool zero_init_expr_p (tree); 8034 extern bool check_abi_tag_redeclaration (const_tree, const_tree, 8035 const_tree); 8036 extern bool check_abi_tag_args (tree, tree); 8037 extern tree strip_typedefs (tree, bool * = NULL, 8038 unsigned int = 0); 8039 extern tree strip_typedefs_expr (tree, bool * = NULL, 8040 unsigned int = 0); 8041 extern tree copy_binfo (tree, tree, tree, 8042 tree *, int); 8043 extern int member_p (const_tree); 8044 extern cp_lvalue_kind real_lvalue_p (const_tree); 8045 extern cp_lvalue_kind lvalue_kind (const_tree); 8046 extern bool glvalue_p (const_tree); 8047 extern bool obvalue_p (const_tree); 8048 extern bool xvalue_p (const_tree); 8049 extern bool bitfield_p (const_tree); 8050 extern bool non_mergeable_glvalue_p (const_tree); 8051 extern tree cp_stabilize_reference (tree); 8052 extern bool builtin_valid_in_constant_expr_p (const_tree); 8053 extern tree build_min (enum tree_code, tree, ...); 8054 extern tree build_min_nt_loc (location_t, enum tree_code, 8055 ...); 8056 extern tree build_min_non_dep (enum tree_code, tree, ...); 8057 extern tree build_min_non_dep_op_overload (enum tree_code, tree, tree, ...); 8058 extern tree build_min_non_dep_op_overload (tree, tree, tree, 8059 vec<tree, va_gc> *); 8060 extern tree build_min_nt_call_vec (tree, vec<tree, va_gc> *); 8061 extern tree build_min_non_dep_call_vec (tree, tree, vec<tree, va_gc> *); 8062 extern vec<tree, va_gc>* vec_copy_and_insert (vec<tree, va_gc>*, tree, unsigned); 8063 extern tree build_cplus_new (tree, tree, tsubst_flags_t); 8064 extern tree build_local_temp (tree); 8065 extern bool is_local_temp (tree); 8066 extern tree build_aggr_init_expr (tree, tree); 8067 extern tree get_target_expr (tree, 8068 tsubst_flags_t = tf_warning_or_error); 8069 extern tree build_cplus_array_type (tree, tree, int is_dep = -1); 8070 extern tree build_array_of_n_type (tree, int); 8071 extern bool array_of_runtime_bound_p (tree); 8072 extern bool vla_type_p (tree); 8073 extern tree build_array_copy (tree); 8074 extern tree build_vec_init_expr (tree, tree, tsubst_flags_t); 8075 extern tree expand_vec_init_expr (tree, tree, tsubst_flags_t, 8076 vec<tree,va_gc>** = nullptr); 8077 extern void diagnose_non_constexpr_vec_init (tree); 8078 extern tree hash_tree_cons (tree, tree, tree); 8079 extern tree hash_tree_chain (tree, tree); 8080 extern tree build_qualified_name (tree, tree, tree, bool); 8081 extern tree build_ref_qualified_type (tree, cp_ref_qualifier); 8082 extern tree make_binding_vec (tree, unsigned clusters CXX_MEM_STAT_INFO); 8083 inline tree ovl_first (tree) ATTRIBUTE_PURE; 8084 extern tree ovl_make (tree fn, 8085 tree next = NULL_TREE); 8086 extern tree ovl_insert (tree fn, tree maybe_ovl, 8087 int using_or_hidden = 0); 8088 extern tree ovl_skip_hidden (tree) ATTRIBUTE_PURE; 8089 extern void lookup_mark (tree lookup, bool val); 8090 extern tree lookup_add (tree fns, tree lookup); 8091 extern tree lookup_maybe_add (tree fns, tree lookup, 8092 bool deduping); 8093 extern int is_overloaded_fn (tree) ATTRIBUTE_PURE; 8094 extern bool really_overloaded_fn (tree) ATTRIBUTE_PURE; 8095 extern tree dependent_name (tree); 8096 extern tree call_expr_dependent_name (tree); 8097 extern tree maybe_get_fns (tree) ATTRIBUTE_PURE; 8098 extern tree get_fns (tree) ATTRIBUTE_PURE; 8099 extern tree get_first_fn (tree) ATTRIBUTE_PURE; 8100 extern tree ovl_scope (tree); 8101 extern const char *cxx_printable_name (tree, int); 8102 extern const char *cxx_printable_name_translate (tree, int); 8103 extern tree canonical_eh_spec (tree); 8104 extern tree build_cp_fntype_variant (tree, cp_ref_qualifier, tree, bool); 8105 extern tree build_exception_variant (tree, tree); 8106 extern void fixup_deferred_exception_variants (tree, tree); 8107 extern tree bind_template_template_parm (tree, tree); 8108 extern tree array_type_nelts_total (tree); 8109 extern tree array_type_nelts_top (tree); 8110 extern bool array_of_unknown_bound_p (const_tree); 8111 extern tree break_out_target_exprs (tree, bool = false); 8112 extern tree build_ctor_subob_ref (tree, tree, tree); 8113 extern tree replace_placeholders (tree, tree, bool * = NULL); 8114 extern bool find_placeholders (tree); 8115 extern tree get_type_decl (tree); 8116 extern tree decl_namespace_context (tree); 8117 extern bool decl_anon_ns_mem_p (tree); 8118 extern bool decl_internal_context_p (const_tree); 8119 extern tree lvalue_type (tree); 8120 extern tree error_type (tree); 8121 extern int varargs_function_p (const_tree); 8122 extern bool cp_tree_equal (tree, tree); 8123 extern tree no_linkage_check (tree, bool); 8124 extern void debug_binfo (tree); 8125 extern tree build_dummy_object (tree); 8126 extern tree maybe_dummy_object (tree, tree *); 8127 extern bool is_dummy_object (const_tree); 8128 extern bool is_byte_access_type (tree); 8129 extern bool is_byte_access_type_not_plain_char (tree); 8130 extern const struct scoped_attribute_specs cxx_gnu_attribute_table; 8131 extern const struct scoped_attribute_specs std_attribute_table; 8132 extern tree make_ptrmem_cst (tree, tree); 8133 extern tree cp_build_type_attribute_variant (tree, tree); 8134 extern tree cp_build_reference_type (tree, bool); 8135 extern tree move (tree); 8136 extern tree cp_build_qualified_type (tree, int, 8137 tsubst_flags_t = tf_warning_or_error); 8138 extern bool cv_qualified_p (const_tree); 8139 extern tree cv_unqualified (tree); 8140 extern special_function_kind special_function_p (const_tree); 8141 extern special_function_kind special_memfn_p (const_tree); 8142 extern int count_trees (tree); 8143 extern int char_type_p (tree); 8144 extern void verify_stmt_tree (tree); 8145 extern linkage_kind decl_linkage (tree); 8146 extern duration_kind decl_storage_duration (tree); 8147 extern tree cp_walk_subtrees (tree*, int*, walk_tree_fn, 8148 void*, hash_set<tree> *); 8149 #define cp_walk_tree(tp,func,data,pset) \ 8150 walk_tree_1 (tp, func, data, pset, cp_walk_subtrees) 8151 #define cp_walk_tree_without_duplicates(tp,func,data) \ 8152 walk_tree_without_duplicates_1 (tp, func, data, cp_walk_subtrees) 8153 extern tree rvalue (tree); 8154 extern tree convert_bitfield_to_declared_type (tree); 8155 extern tree cp_save_expr (tree); 8156 extern bool cast_valid_in_integral_constant_expression_p (tree); 8157 extern bool cxx_type_hash_eq (const_tree, const_tree); 8158 extern tree cxx_copy_lang_qualifiers (const_tree, const_tree); 8159 8160 extern void cxx_print_statistics (void); 8161 extern bool maybe_warn_zero_as_null_pointer_constant (tree, location_t); 8162 8163 /* in ptree.cc */ 8164 extern void cxx_print_xnode (FILE *, tree, int); 8165 extern void cxx_print_decl (FILE *, tree, int); 8166 extern void cxx_print_type (FILE *, tree, int); 8167 extern void cxx_print_identifier (FILE *, tree, int); 8168 extern void cxx_print_error_function (diagnostic_context *, 8169 const char *, 8170 const diagnostic_info *); 8171 8172 /* in typeck.cc */ 8173 /* Says how we should behave when comparing two arrays one of which 8174 has unknown bounds. */ 8175 enum compare_bounds_t { bounds_none, bounds_either, bounds_first }; 8176 8177 extern bool cxx_mark_addressable (tree, bool = false); 8178 extern int string_conv_p (const_tree, const_tree, int); 8179 extern tree cp_truthvalue_conversion (tree, tsubst_flags_t); 8180 extern tree contextual_conv_bool (tree, tsubst_flags_t); 8181 extern tree condition_conversion (tree); 8182 extern tree require_complete_type (tree, 8183 tsubst_flags_t = tf_warning_or_error); 8184 extern tree complete_type (tree); 8185 extern tree complete_type_or_else (tree, tree); 8186 extern tree complete_type_or_maybe_complain (tree, tree, tsubst_flags_t); 8187 extern int cp_compare_floating_point_conversion_ranks (tree, tree); 8188 inline bool type_unknown_p (const_tree); 8189 enum { ce_derived, ce_type, ce_normal, ce_exact }; 8190 extern bool comp_except_specs (const_tree, const_tree, int); 8191 extern bool comptypes (tree, tree, int); 8192 extern bool same_type_ignoring_top_level_qualifiers_p (tree, tree); 8193 extern bool similar_type_p (tree, tree); 8194 extern bool next_common_initial_sequence (tree &, tree &); 8195 extern bool layout_compatible_type_p (tree, tree); 8196 extern bool compparms (const_tree, const_tree); 8197 extern int comp_cv_qualification (const_tree, const_tree); 8198 extern int comp_cv_qualification (int, int); 8199 extern int comp_cv_qual_signature (tree, tree); 8200 extern tree cxx_sizeof_or_alignof_expr (location_t, tree, 8201 enum tree_code, bool, bool); 8202 extern tree cxx_sizeof_or_alignof_type (location_t, tree, 8203 enum tree_code, bool, bool); 8204 extern tree cxx_alignas_expr (tree); 8205 extern tree cxx_sizeof_nowarn (tree); 8206 extern tree is_bitfield_expr_with_lowered_type (const_tree); 8207 extern tree unlowered_expr_type (const_tree); 8208 extern tree decay_conversion (tree, 8209 tsubst_flags_t, 8210 bool = true); 8211 extern tree build_class_member_access_expr (cp_expr, tree, tree, bool, 8212 tsubst_flags_t); 8213 extern tree finish_class_member_access_expr (cp_expr, tree, bool, 8214 tsubst_flags_t); 8215 extern tree lookup_destructor (tree, tree, tree, tsubst_flags_t); 8216 extern tree build_dependent_operator_type (tree, enum tree_code, bool); 8217 extern tree build_x_indirect_ref (location_t, tree, 8218 ref_operator, tree, 8219 tsubst_flags_t); 8220 extern tree cp_build_indirect_ref (location_t, tree, 8221 ref_operator, 8222 tsubst_flags_t); 8223 extern tree cp_build_fold_indirect_ref (tree); 8224 extern tree build_array_ref (location_t, tree, tree); 8225 extern tree cp_build_array_ref (location_t, tree, tree, 8226 tsubst_flags_t); 8227 extern tree get_member_function_from_ptrfunc (tree *, tree, tsubst_flags_t); 8228 extern tree cp_build_function_call_nary (tree, tsubst_flags_t, ...) 8229 ATTRIBUTE_SENTINEL; 8230 extern tree cp_build_function_call_vec (tree, vec<tree, va_gc> **, 8231 tsubst_flags_t, 8232 tree = NULL_TREE); 8233 extern tree build_x_binary_op (const op_location_t &, 8234 enum tree_code, tree, 8235 enum tree_code, tree, 8236 enum tree_code, tree, 8237 tree *, tsubst_flags_t); 8238 inline tree build_x_binary_op (const op_location_t &loc, 8239 enum tree_code code, tree arg1, tree arg2, 8240 tsubst_flags_t complain) 8241 { 8242 return build_x_binary_op (loc, code, arg1, TREE_CODE (arg1), arg2, 8243 TREE_CODE (arg2), NULL_TREE, NULL, complain); 8244 } 8245 extern tree build_x_array_ref (location_t, tree, tree, 8246 tsubst_flags_t); 8247 extern tree build_omp_array_section (location_t, tree, tree, tree); 8248 extern tree build_x_unary_op (location_t, 8249 enum tree_code, cp_expr, 8250 tree, tsubst_flags_t); 8251 extern tree cp_build_addressof (location_t, tree, 8252 tsubst_flags_t); 8253 extern tree cp_build_addr_expr (tree, tsubst_flags_t); 8254 extern tree cp_build_unary_op (enum tree_code, tree, bool, 8255 tsubst_flags_t); 8256 extern tree genericize_compound_lvalue (tree); 8257 extern tree unary_complex_lvalue (enum tree_code, tree); 8258 extern tree build_x_conditional_expr (location_t, tree, tree, tree, 8259 tsubst_flags_t); 8260 extern tree build_x_compound_expr_from_list (tree, expr_list_kind, 8261 tsubst_flags_t); 8262 extern tree build_x_compound_expr_from_vec (vec<tree, va_gc> *, 8263 const char *, tsubst_flags_t); 8264 extern tree build_x_compound_expr (location_t, tree, tree, 8265 tree, tsubst_flags_t); 8266 extern tree build_compound_expr (location_t, tree, tree); 8267 extern tree cp_build_compound_expr (tree, tree, tsubst_flags_t); 8268 extern tree build_static_cast (location_t, tree, tree, 8269 tsubst_flags_t); 8270 extern tree build_reinterpret_cast (location_t, tree, tree, 8271 tsubst_flags_t); 8272 extern tree build_const_cast (location_t, tree, tree, 8273 tsubst_flags_t); 8274 extern tree build_c_cast (location_t, tree, tree); 8275 extern cp_expr build_c_cast (location_t loc, tree type, 8276 cp_expr expr); 8277 extern tree cp_build_c_cast (location_t, tree, tree, 8278 tsubst_flags_t); 8279 extern cp_expr build_x_modify_expr (location_t, tree, 8280 enum tree_code, tree, 8281 tree, tsubst_flags_t); 8282 extern tree cp_build_modify_expr (location_t, tree, 8283 enum tree_code, tree, 8284 tsubst_flags_t); 8285 extern tree convert_for_initialization (tree, tree, tree, int, 8286 impl_conv_rhs, tree, int, 8287 tsubst_flags_t); 8288 extern int comp_ptr_ttypes (tree, tree); 8289 extern bool comp_ptr_ttypes_const (tree, tree, compare_bounds_t); 8290 extern bool error_type_p (const_tree); 8291 extern bool ptr_reasonably_similar (const_tree, const_tree); 8292 extern tree build_ptrmemfunc (tree, tree, int, bool, 8293 tsubst_flags_t); 8294 extern int cp_type_quals (const_tree); 8295 extern int type_memfn_quals (const_tree); 8296 extern cp_ref_qualifier type_memfn_rqual (const_tree); 8297 extern tree apply_memfn_quals (tree, cp_cv_quals, 8298 cp_ref_qualifier = REF_QUAL_NONE); 8299 extern bool cp_has_mutable_p (const_tree); 8300 extern bool at_least_as_qualified_p (const_tree, const_tree); 8301 extern void cp_apply_type_quals_to_decl (int, tree); 8302 extern tree build_ptrmemfunc1 (tree, tree, tree); 8303 extern void expand_ptrmemfunc_cst (tree, tree *, tree *); 8304 extern tree type_after_usual_arithmetic_conversions (tree, tree); 8305 extern tree common_pointer_type (tree, tree); 8306 extern tree composite_pointer_type (const op_location_t &, 8307 tree, tree, tree, tree, 8308 composite_pointer_operation, 8309 tsubst_flags_t); 8310 extern tree merge_types (tree, tree); 8311 extern tree strip_array_domain (tree); 8312 extern tree check_return_expr (tree, bool *, bool *); 8313 extern tree spaceship_type (tree, tsubst_flags_t = tf_warning_or_error); 8314 extern tree genericize_spaceship (location_t, tree, tree, tree); 8315 extern tree cp_build_binary_op (const op_location_t &, 8316 enum tree_code, tree, tree, 8317 tsubst_flags_t); 8318 extern tree build_x_vec_perm_expr (location_t, 8319 tree, tree, tree, 8320 tsubst_flags_t); 8321 extern tree build_x_shufflevector (location_t, 8322 vec<tree, va_gc> *, 8323 tsubst_flags_t); 8324 #define cxx_sizeof(T) cxx_sizeof_or_alignof_type (input_location, T, SIZEOF_EXPR, false, true) 8325 extern tree build_simple_component_ref (tree, tree); 8326 extern tree build_ptrmemfunc_access_expr (tree, tree); 8327 extern tree build_address (tree); 8328 extern tree build_nop (tree, tree); 8329 extern tree non_reference (tree); 8330 extern tree lookup_anon_field (tree, tree); 8331 extern bool invalid_nonstatic_memfn_p (location_t, tree, 8332 tsubst_flags_t); 8333 extern tree convert_member_func_to_ptr (tree, tree, tsubst_flags_t); 8334 extern tree convert_ptrmem (tree, tree, bool, bool, 8335 tsubst_flags_t); 8336 extern int lvalue_or_else (tree, enum lvalue_use, 8337 tsubst_flags_t); 8338 extern void check_template_keyword (tree); 8339 extern bool check_raw_literal_operator (const_tree decl); 8340 extern bool check_literal_operator_args (const_tree, bool *, bool *); 8341 extern void maybe_warn_about_useless_cast (location_t, tree, tree, 8342 tsubst_flags_t); 8343 extern tree cp_perform_integral_promotions (tree, tsubst_flags_t); 8344 8345 extern tree finish_left_unary_fold_expr (location_t, tree, int); 8346 extern tree finish_right_unary_fold_expr (location_t, tree, int); 8347 extern tree finish_binary_fold_expr (location_t, tree, tree, int); 8348 extern tree treat_lvalue_as_rvalue_p (tree, bool); 8349 extern bool decl_in_std_namespace_p (tree); 8350 extern void maybe_warn_pessimizing_move (tree, tree, bool); 8351 8352 /* in typeck2.cc */ 8353 extern void require_complete_eh_spec_types (tree, tree); 8354 extern bool cxx_incomplete_type_diagnostic (location_t, const_tree, 8355 const_tree, diagnostic_t); 8356 inline location_t 8357 loc_or_input_loc (location_t loc) 8358 { 8359 return loc == UNKNOWN_LOCATION ? input_location : loc; 8360 } 8361 8362 /* Like EXPR_LOCATION, but also handle some tcc_exceptional that have 8363 locations. */ 8364 8365 inline location_t 8366 cp_expr_location (const_tree t_) 8367 { 8368 tree t = CONST_CAST_TREE (t_); 8369 if (t == NULL_TREE) 8370 return UNKNOWN_LOCATION; 8371 switch (TREE_CODE (t)) 8372 { 8373 case LAMBDA_EXPR: 8374 return LAMBDA_EXPR_LOCATION (t); 8375 case STATIC_ASSERT: 8376 return STATIC_ASSERT_SOURCE_LOCATION (t); 8377 case TRAIT_EXPR: 8378 return TRAIT_EXPR_LOCATION (t); 8379 case PTRMEM_CST: 8380 return PTRMEM_CST_LOCATION (t); 8381 default: 8382 return EXPR_LOCATION (t); 8383 } 8384 } 8385 8386 inline location_t 8387 cp_expr_loc_or_loc (const_tree t, location_t or_loc) 8388 { 8389 location_t loc = cp_expr_location (t); 8390 if (loc == UNKNOWN_LOCATION) 8391 loc = or_loc; 8392 return loc; 8393 } 8394 8395 inline location_t 8396 cp_expr_loc_or_input_loc (const_tree t) 8397 { 8398 return cp_expr_loc_or_loc (t, input_location); 8399 } 8400 8401 inline bool 8402 cxx_incomplete_type_diagnostic (const_tree value, const_tree type, 8403 diagnostic_t diag_kind) 8404 { 8405 return cxx_incomplete_type_diagnostic (cp_expr_loc_or_input_loc (value), 8406 value, type, diag_kind); 8407 } 8408 8409 extern void cxx_incomplete_type_error (location_t, const_tree, 8410 const_tree); 8411 inline void 8412 cxx_incomplete_type_error (const_tree value, const_tree type) 8413 { 8414 cxx_incomplete_type_diagnostic (value, type, DK_ERROR); 8415 } 8416 8417 extern void cxx_incomplete_type_inform (const_tree); 8418 extern tree error_not_base_type (tree, tree); 8419 extern tree binfo_or_else (tree, tree); 8420 extern void cxx_readonly_error (location_t, tree, 8421 enum lvalue_use); 8422 extern void complete_type_check_abstract (tree); 8423 extern int abstract_virtuals_error (tree, tree, 8424 tsubst_flags_t = tf_warning_or_error); 8425 extern int abstract_virtuals_error (abstract_class_use, tree, 8426 tsubst_flags_t = tf_warning_or_error); 8427 8428 extern tree store_init_value (tree, tree, vec<tree, va_gc>**, int); 8429 extern tree build_disable_temp_cleanup (tree); 8430 extern tree split_nonconstant_init (tree, tree); 8431 extern bool check_narrowing (tree, tree, tsubst_flags_t, 8432 bool = false); 8433 extern bool ordinary_char_type_p (tree); 8434 extern bool array_string_literal_compatible_p (tree, tree); 8435 extern tree digest_init (tree, tree, tsubst_flags_t); 8436 extern tree digest_init_flags (tree, tree, int, tsubst_flags_t); 8437 extern tree digest_nsdmi_init (tree, tree, tsubst_flags_t); 8438 extern tree build_scoped_ref (tree, tree, tree *); 8439 extern tree build_x_arrow (location_t, tree, 8440 tsubst_flags_t); 8441 extern tree build_m_component_ref (tree, tree, tsubst_flags_t); 8442 extern tree build_functional_cast (location_t, tree, tree, 8443 tsubst_flags_t); 8444 extern tree add_exception_specifier (tree, tree, tsubst_flags_t); 8445 extern tree merge_exception_specifiers (tree, tree); 8446 extern void set_target_expr_eliding (tree); 8447 extern tree cp_build_init_expr (location_t, tree, tree); 8448 inline tree cp_build_init_expr (tree t, tree i) 8449 { return cp_build_init_expr (input_location, t, i); } 8450 8451 /* in mangle.cc */ 8452 extern void init_mangle (void); 8453 extern void mangle_decl (tree); 8454 extern const char *mangle_type_string (tree); 8455 extern tree mangle_typeinfo_for_type (tree); 8456 extern tree mangle_typeinfo_string_for_type (tree); 8457 extern tree mangle_vtbl_for_type (tree); 8458 extern tree mangle_vtt_for_type (tree); 8459 extern tree mangle_ctor_vtbl_for_type (tree, tree); 8460 extern tree mangle_thunk (tree, int, tree, tree, tree); 8461 extern tree mangle_guard_variable (tree); 8462 extern tree mangle_tls_init_fn (tree); 8463 extern tree mangle_tls_wrapper_fn (tree); 8464 extern bool decl_tls_wrapper_p (tree); 8465 extern tree mangle_ref_init_variable (tree); 8466 extern tree mangle_template_parm_object (tree); 8467 extern char *get_mangled_vtable_map_var_name (tree); 8468 extern bool mangle_return_type_p (tree); 8469 extern tree mangle_decomp (tree, vec<tree> &); 8470 extern void mangle_module_substitution (int); 8471 extern int mangle_module_component (tree id, bool partition); 8472 extern tree mangle_module_global_init (int); 8473 8474 /* in dump.cc */ 8475 extern bool cp_dump_tree (void *, tree); 8476 8477 /* In cp/cp-objcp-common.cc. */ 8478 8479 extern alias_set_type cxx_get_alias_set (tree); 8480 extern bool cxx_warn_unused_global_decl (const_tree); 8481 extern size_t cp_tree_size (enum tree_code); 8482 extern bool cp_var_mod_type_p (tree, tree); 8483 extern void cxx_initialize_diagnostics (diagnostic_context *); 8484 extern int cxx_types_compatible_p (tree, tree); 8485 extern bool cxx_block_may_fallthru (const_tree); 8486 8487 /* in cp-gimplify.cc */ 8488 extern int cp_gimplify_expr (tree *, gimple_seq *, 8489 gimple_seq *); 8490 extern void cp_genericize (tree); 8491 extern bool cxx_omp_const_qual_no_mutable (tree); 8492 extern enum omp_clause_default_kind cxx_omp_predetermined_sharing_1 (tree); 8493 extern enum omp_clause_default_kind cxx_omp_predetermined_sharing (tree); 8494 extern enum omp_clause_defaultmap_kind cxx_omp_predetermined_mapping (tree); 8495 extern tree cxx_omp_clause_default_ctor (tree, tree, tree); 8496 extern tree cxx_omp_clause_copy_ctor (tree, tree, tree); 8497 extern tree cxx_omp_clause_assign_op (tree, tree, tree); 8498 extern tree cxx_omp_clause_dtor (tree, tree); 8499 extern void cxx_omp_finish_clause (tree, gimple_seq *, bool); 8500 extern bool cxx_omp_privatize_by_reference (const_tree); 8501 extern bool cxx_omp_disregard_value_expr (tree, bool); 8502 extern void cp_fold_function (tree); 8503 extern tree cp_fold_maybe_rvalue (tree, bool); 8504 extern tree cp_fold_rvalue (tree); 8505 extern tree cp_fully_fold (tree); 8506 extern tree cp_fully_fold_init (tree); 8507 extern tree predeclare_vla (tree); 8508 extern void clear_fold_cache (void); 8509 extern tree lookup_hotness_attribute (tree); 8510 extern tree process_stmt_hotness_attribute (tree, location_t); 8511 extern tree build_assume_call (location_t, tree); 8512 extern tree process_stmt_assume_attribute (tree, tree, location_t); 8513 extern bool simple_empty_class_p (tree, tree, tree_code); 8514 extern tree fold_builtin_source_location (const_tree); 8515 extern tree get_source_location_impl_type (); 8516 extern tree cp_fold_immediate (tree *, mce_value, 8517 tree = current_function_decl); 8518 extern void process_and_check_pending_immediate_escalating_fns (); 8519 8520 /* in name-lookup.cc */ 8521 extern tree strip_using_decl (tree); 8522 extern void diagnose_name_conflict (tree, tree); 8523 extern bool dependent_local_decl_p (tree); 8524 8525 /* Tell the binding oracle what kind of binding we are looking for. */ 8526 8527 enum cp_oracle_request 8528 { 8529 CP_ORACLE_IDENTIFIER 8530 }; 8531 8532 /* If this is non-NULL, then it is a "binding oracle" which can lazily 8533 create bindings when needed by the C compiler. The oracle is told 8534 the name and type of the binding to create. It can call pushdecl 8535 or the like to ensure the binding is visible; or do nothing, 8536 leaving the binding untouched. c-decl.cc takes note of when the 8537 oracle has been called and will not call it again if it fails to 8538 create a given binding. */ 8539 8540 typedef void cp_binding_oracle_function (enum cp_oracle_request, tree identifier); 8541 8542 extern cp_binding_oracle_function *cp_binding_oracle; 8543 8544 /* Set during diagnostics to record the failed constraint. This is a 8545 TREE_LIST whose VALUE is the constraint and whose PURPOSE are the 8546 instantiation arguments Defined in pt.cc. */ 8547 8548 extern tree current_failed_constraint; 8549 8550 /* An RAII class to manage the failed constraint. */ 8551 8552 struct diagnosing_failed_constraint 8553 { 8554 diagnosing_failed_constraint (tree, tree, bool); 8555 ~diagnosing_failed_constraint (); 8556 static bool replay_errors_p (); 8557 8558 bool diagnosing_error; 8559 }; 8560 8561 /* in constraint.cc */ 8562 8563 extern cp_expr finish_constraint_or_expr (location_t, cp_expr, cp_expr); 8564 extern cp_expr finish_constraint_and_expr (location_t, cp_expr, cp_expr); 8565 extern cp_expr finish_constraint_primary_expr (cp_expr); 8566 extern tree finish_concept_definition (cp_expr, tree, tree); 8567 extern tree combine_constraint_expressions (tree, tree); 8568 extern tree append_constraint (tree, tree); 8569 extern tree get_constraints (const_tree); 8570 extern void set_constraints (tree, tree); 8571 extern void remove_constraints (tree); 8572 extern tree current_template_constraints (void); 8573 extern tree associate_classtype_constraints (tree); 8574 extern tree build_constraints (tree, tree); 8575 extern tree maybe_substitute_reqs_for (tree, const_tree); 8576 extern tree get_trailing_function_requirements (tree); 8577 extern tree get_shorthand_constraints (tree); 8578 8579 extern tree build_concept_id (tree); 8580 extern tree build_type_constraint (tree, tree, tsubst_flags_t); 8581 extern tree build_concept_check (tree, tree, tsubst_flags_t); 8582 extern tree build_concept_check (tree, tree, tree, tsubst_flags_t); 8583 8584 extern tree_pair finish_type_constraints (tree, tree, tsubst_flags_t); 8585 extern tree build_constrained_parameter (tree, tree, tree = NULL_TREE); 8586 extern void placeholder_extract_concept_and_args (tree, tree&, tree&); 8587 extern bool equivalent_placeholder_constraints (tree, tree); 8588 extern hashval_t hash_placeholder_constraint (tree); 8589 extern bool deduce_constrained_parameter (tree, tree&, tree&); 8590 extern tree resolve_constraint_check (tree); 8591 extern tree check_function_concept (tree); 8592 extern tree finish_template_introduction (tree, tree, location_t loc); 8593 extern bool valid_requirements_p (tree); 8594 extern tree finish_concept_name (tree); 8595 extern tree finish_shorthand_constraint (tree, tree); 8596 extern tree finish_requires_expr (location_t, tree, tree); 8597 extern tree finish_simple_requirement (location_t, tree); 8598 extern tree finish_type_requirement (location_t, tree); 8599 extern tree finish_compound_requirement (location_t, tree, tree, bool); 8600 extern tree finish_nested_requirement (location_t, tree); 8601 extern tree tsubst_requires_expr (tree, tree, tsubst_flags_t, tree); 8602 extern tree evaluate_requires_expr (tree); 8603 extern tree tsubst_constraint (tree, tree, tsubst_flags_t, tree); 8604 extern tree tsubst_constraint_info (tree, tree, tsubst_flags_t, tree); 8605 extern tree tsubst_parameter_mapping (tree, tree, tsubst_flags_t, tree); 8606 8607 struct processing_constraint_expression_sentinel 8608 { 8609 processing_constraint_expression_sentinel (); 8610 ~processing_constraint_expression_sentinel (); 8611 }; 8612 8613 extern bool processing_constraint_expression_p (); 8614 8615 extern tree unpack_concept_check (tree); 8616 extern tree get_concept_check_template (tree); 8617 extern tree evaluate_concept_check (tree); 8618 extern bool constraints_satisfied_p (tree, tree = NULL_TREE); 8619 extern bool* lookup_subsumption_result (tree, tree); 8620 extern bool save_subsumption_result (tree, tree, bool); 8621 extern tree find_template_parameters (tree, tree); 8622 extern bool equivalent_constraints (tree, tree); 8623 extern bool equivalently_constrained (tree, tree); 8624 extern bool strictly_subsumes (tree, tree); 8625 extern bool ttp_subsumes (tree, tree); 8626 extern int more_constrained (tree, tree); 8627 extern bool at_least_as_constrained (tree, tree); 8628 extern bool constraints_equivalent_p (tree, tree); 8629 extern bool atomic_constraints_identical_p (tree, tree); 8630 extern hashval_t iterative_hash_constraint (tree, hashval_t); 8631 extern hashval_t hash_atomic_constraint (tree); 8632 extern void diagnose_constraints (location_t, tree, tree); 8633 8634 extern void note_failed_type_completion_for_satisfaction (tree); 8635 8636 /* A structural hasher for ATOMIC_CONSTRs. */ 8637 8638 struct atom_hasher : default_hash_traits<tree> 8639 { 8640 static hashval_t hash (tree t) 8641 { 8642 ++comparing_specializations; 8643 hashval_t val = hash_atomic_constraint (t); 8644 --comparing_specializations; 8645 return val; 8646 } 8647 8648 static bool equal (tree t1, tree t2) 8649 { 8650 ++comparing_specializations; 8651 bool eq = atomic_constraints_identical_p (t1, t2); 8652 --comparing_specializations; 8653 return eq; 8654 } 8655 }; 8656 8657 /* in logic.cc */ 8658 extern bool subsumes (tree, tree); 8659 8660 /* In class.cc */ 8661 extern void set_current_access_from_decl (tree); 8662 extern void cp_finish_injected_record_type (tree); 8663 8664 /* in vtable-class-hierarchy.cc */ 8665 extern void vtv_compute_class_hierarchy_transitive_closure (void); 8666 extern void vtv_generate_init_routine (void); 8667 extern void vtv_save_class_info (tree); 8668 extern void vtv_recover_class_info (void); 8669 extern void vtv_build_vtable_verify_fndecl (void); 8670 8671 /* In constexpr.cc */ 8672 /* Representation of entries in the constexpr function definition table. */ 8673 8674 struct GTY((for_user)) constexpr_fundef { 8675 tree decl; 8676 tree body; 8677 tree parms; 8678 tree result; 8679 }; 8680 8681 extern void fini_constexpr (void); 8682 extern bool literal_type_p (tree); 8683 extern void maybe_save_constexpr_fundef (tree); 8684 extern void register_constexpr_fundef (const constexpr_fundef &); 8685 extern constexpr_fundef *retrieve_constexpr_fundef (tree); 8686 extern bool is_valid_constexpr_fn (tree, bool); 8687 extern bool check_constexpr_ctor_body (tree, tree, bool); 8688 extern tree constexpr_fn_retval (tree); 8689 extern tree ensure_literal_type_for_constexpr_object (tree); 8690 extern bool potential_constant_expression (tree); 8691 extern bool is_constant_expression (tree); 8692 extern bool is_rvalue_constant_expression (tree); 8693 extern bool is_nondependent_constant_expression (tree); 8694 extern bool is_nondependent_static_init_expression (tree); 8695 extern bool is_static_init_expression (tree); 8696 extern bool is_std_class (tree, const char *); 8697 extern bool is_std_allocator (tree); 8698 extern bool potential_rvalue_constant_expression (tree); 8699 extern bool require_potential_constant_expression (tree); 8700 extern bool require_constant_expression (tree); 8701 extern bool require_rvalue_constant_expression (tree); 8702 extern bool require_potential_rvalue_constant_expression (tree); 8703 extern bool require_potential_rvalue_constant_expression_fncheck (tree); 8704 extern tree cxx_constant_value (tree, tree = NULL_TREE, 8705 tsubst_flags_t = tf_error); 8706 inline tree cxx_constant_value (tree t, tsubst_flags_t complain) 8707 { return cxx_constant_value (t, NULL_TREE, complain); } 8708 extern void cxx_constant_dtor (tree, tree); 8709 extern tree cxx_constant_init (tree, tree = NULL_TREE); 8710 extern tree maybe_constant_value (tree, tree = NULL_TREE, mce_value = mce_unknown); 8711 extern tree maybe_constant_init (tree, tree = NULL_TREE, bool = false); 8712 extern tree fold_non_dependent_expr (tree, 8713 tsubst_flags_t = tf_warning_or_error, 8714 bool = false, tree = NULL_TREE); 8715 extern tree maybe_fold_non_dependent_expr (tree, 8716 tsubst_flags_t = tf_warning_or_error); 8717 extern tree fold_non_dependent_init (tree, 8718 tsubst_flags_t = tf_warning_or_error, 8719 bool = false, tree = NULL_TREE); 8720 extern tree fold_simple (tree); 8721 extern tree fold_to_constant (tree); 8722 extern bool reduced_constant_expression_p (tree); 8723 extern bool is_instantiation_of_constexpr (tree); 8724 extern bool var_in_constexpr_fn (tree); 8725 extern bool var_in_maybe_constexpr_fn (tree); 8726 extern bool maybe_constexpr_fn (tree); 8727 extern void explain_invalid_constexpr_fn (tree); 8728 extern vec<tree> cx_error_context (void); 8729 extern tree fold_sizeof_expr (tree); 8730 extern void clear_cv_and_fold_caches (void); 8731 extern tree unshare_constructor (tree CXX_MEM_STAT_INFO); 8732 extern bool decl_implicit_constexpr_p (tree); 8733 struct constexpr_ctx; 8734 extern tree find_failing_clause (const constexpr_ctx *ctx, tree); 8735 extern void diagnose_failing_condition (tree, location_t, bool, 8736 const constexpr_ctx * = nullptr); 8737 extern bool replace_decl (tree *, tree, tree); 8738 8739 /* An RAII sentinel used to restrict constexpr evaluation so that it 8740 doesn't do anything that causes extra DECL_UID generation. */ 8741 8742 struct uid_sensitive_constexpr_evaluation_sentinel 8743 { 8744 temp_override<bool> ovr; 8745 uid_sensitive_constexpr_evaluation_sentinel (); 8746 }; 8747 8748 /* Used to determine whether uid_sensitive_constexpr_evaluation_p was 8749 called and returned true, indicating that we've restricted constexpr 8750 evaluation in order to avoid UID generation. We use this to control 8751 updates to the fold_cache and cv_cache. */ 8752 8753 struct uid_sensitive_constexpr_evaluation_checker 8754 { 8755 const unsigned saved_counter; 8756 uid_sensitive_constexpr_evaluation_checker (); 8757 bool evaluation_restricted_p () const; 8758 }; 8759 8760 void cp_tree_c_finish_parsing (); 8761 8762 /* In cp-ubsan.cc */ 8763 extern void cp_ubsan_maybe_instrument_member_call (tree); 8764 extern void cp_ubsan_instrument_member_accesses (tree *); 8765 extern tree cp_ubsan_maybe_instrument_downcast (location_t, tree, tree, tree); 8766 extern tree cp_ubsan_maybe_instrument_cast_to_vbase (location_t, tree, tree); 8767 extern void cp_ubsan_maybe_initialize_vtbl_ptrs (tree); 8768 8769 /* In coroutines.cc */ 8770 extern tree finish_co_return_stmt (location_t, tree); 8771 extern tree finish_co_await_expr (location_t, tree); 8772 extern tree finish_co_yield_expr (location_t, tree); 8773 extern tree coro_validate_builtin_call (tree, 8774 tsubst_flags_t = tf_warning_or_error); 8775 extern bool morph_fn_to_coro (tree, tree *, tree *); 8776 extern tree coro_get_actor_function (tree); 8777 extern tree coro_get_destroy_function (tree); 8778 extern tree coro_get_ramp_function (tree); 8779 8780 extern tree co_await_get_resume_call (tree await_expr); 8781 8782 /* contracts.cc */ 8783 extern tree make_postcondition_variable (cp_expr); 8784 extern tree make_postcondition_variable (cp_expr, tree); 8785 extern tree grok_contract (tree, tree, tree, cp_expr, location_t); 8786 extern tree finish_contract_condition (cp_expr); 8787 8788 /* Return the first contract in ATTRS, or NULL_TREE if there are none. */ 8789 8790 inline tree 8791 find_contract (tree attrs) 8792 { 8793 while (attrs && !cxx_contract_attribute_p (attrs)) 8794 attrs = TREE_CHAIN (attrs); 8795 return attrs; 8796 } 8797 8798 inline void 8799 set_decl_contracts (tree decl, tree contract_attrs) 8800 { 8801 remove_contract_attributes (decl); 8802 DECL_ATTRIBUTES (decl) = chainon (DECL_ATTRIBUTES (decl), contract_attrs); 8803 } 8804 8805 /* Returns the computed semantic of the node. */ 8806 8807 inline contract_semantic 8808 get_contract_semantic (const_tree t) 8809 { 8810 return (contract_semantic) (TREE_LANG_FLAG_3 (CONTRACT_CHECK (t)) 8811 | (TREE_LANG_FLAG_2 (t) << 1) 8812 | (TREE_LANG_FLAG_0 ((t)) << 2)); 8813 } 8814 8815 /* Sets the computed semantic of the node. */ 8816 8817 inline void 8818 set_contract_semantic (tree t, contract_semantic semantic) 8819 { 8820 TREE_LANG_FLAG_3 (CONTRACT_CHECK (t)) = semantic & 0x01; 8821 TREE_LANG_FLAG_2 (t) = (semantic & 0x02) >> 1; 8822 TREE_LANG_FLAG_0 (t) = (semantic & 0x04) >> 2; 8823 } 8824 8825 /* Inline bodies. */ 8826 8827 inline tree 8828 ovl_first (tree node) 8829 { 8830 while (TREE_CODE (node) == OVERLOAD) 8831 node = OVL_FUNCTION (node); 8832 return node; 8833 } 8834 8835 inline bool 8836 type_unknown_p (const_tree expr) 8837 { 8838 return TREE_TYPE (expr) == unknown_type_node; 8839 } 8840 8841 inline hashval_t 8842 named_decl_hash::hash (const value_type decl) 8843 { 8844 tree name = (TREE_CODE (decl) == BINDING_VECTOR 8845 ? BINDING_VECTOR_NAME (decl) : OVL_NAME (decl)); 8846 return name ? IDENTIFIER_HASH_VALUE (name) : 0; 8847 } 8848 8849 inline bool 8850 named_decl_hash::equal (const value_type existing, compare_type candidate) 8851 { 8852 tree name = (TREE_CODE (existing) == BINDING_VECTOR 8853 ? BINDING_VECTOR_NAME (existing) : OVL_NAME (existing)); 8854 return candidate == name; 8855 } 8856 8857 inline bool 8858 null_node_p (const_tree expr) 8859 { 8860 STRIP_ANY_LOCATION_WRAPPER (expr); 8861 return expr == null_node; 8862 } 8863 8864 /* True iff T is a variable template declaration. */ 8865 inline bool 8866 variable_template_p (tree t) 8867 { 8868 if (TREE_CODE (t) != TEMPLATE_DECL) 8869 return false; 8870 if (!PRIMARY_TEMPLATE_P (t)) 8871 return false; 8872 if (tree r = DECL_TEMPLATE_RESULT (t)) 8873 return VAR_P (r); 8874 return false; 8875 } 8876 8877 /* True iff T is a standard concept definition. This will return 8878 true for both the template and underlying declaration. */ 8879 8880 inline bool 8881 standard_concept_p (tree t) 8882 { 8883 if (TREE_CODE (t) == TEMPLATE_DECL) 8884 t = DECL_TEMPLATE_RESULT (t); 8885 return TREE_CODE (t) == CONCEPT_DECL; 8886 } 8887 8888 /* True iff T is a variable concept definition. This will return 8889 true for both the template and the underlying declaration. */ 8890 8891 inline bool 8892 variable_concept_p (tree t) 8893 { 8894 if (TREE_CODE (t) == TEMPLATE_DECL) 8895 t = DECL_TEMPLATE_RESULT (t); 8896 return VAR_P (t) && DECL_DECLARED_CONCEPT_P (t); 8897 } 8898 8899 /* True iff T is a function concept definition or an overload set 8900 containing multiple function concepts. This will return true for 8901 both the template and the underlying declaration. */ 8902 8903 inline bool 8904 function_concept_p (tree t) 8905 { 8906 if (TREE_CODE (t) == OVERLOAD) 8907 t = OVL_FIRST (t); 8908 if (TREE_CODE (t) == TEMPLATE_DECL) 8909 t = DECL_TEMPLATE_RESULT (t); 8910 return TREE_CODE (t) == FUNCTION_DECL && DECL_DECLARED_CONCEPT_P (t); 8911 } 8912 8913 /* True iff T is a standard, variable, or function concept. */ 8914 8915 inline bool 8916 concept_definition_p (tree t) 8917 { 8918 if (t == error_mark_node) 8919 return false; 8920 8921 /* Adjust for function concept overloads. */ 8922 if (TREE_CODE (t) == OVERLOAD) 8923 t = OVL_FIRST (t); 8924 8925 /* See through templates. */ 8926 if (TREE_CODE (t) == TEMPLATE_DECL) 8927 t = DECL_TEMPLATE_RESULT (t); 8928 8929 /* The obvious and easy case. */ 8930 if (TREE_CODE (t) == CONCEPT_DECL) 8931 return true; 8932 8933 /* Definitely not a concept. */ 8934 if (!VAR_OR_FUNCTION_DECL_P (t)) 8935 return false; 8936 if (!DECL_LANG_SPECIFIC (t)) 8937 return false; 8938 8939 return DECL_DECLARED_CONCEPT_P (t); 8940 } 8941 8942 /* Same as above, but for const trees. */ 8943 8944 inline bool 8945 concept_definition_p (const_tree t) 8946 { 8947 return concept_definition_p (const_cast<tree> (t)); 8948 } 8949 8950 /* True if t is an expression that checks a concept. */ 8951 8952 inline bool 8953 concept_check_p (const_tree t) 8954 { 8955 if (TREE_CODE (t) == CALL_EXPR) 8956 t = CALL_EXPR_FN (t); 8957 if (t && TREE_CODE (t) == TEMPLATE_ID_EXPR) 8958 return concept_definition_p (TREE_OPERAND (t, 0)); 8959 return false; 8960 } 8961 8962 /* Helpers for IMPLICIT_RVALUE_P to look through automatic dereference. */ 8963 8964 inline bool 8965 implicit_rvalue_p (const_tree t) 8966 { 8967 if (REFERENCE_REF_P (t)) 8968 t = TREE_OPERAND (t, 0); 8969 return ((TREE_CODE (t) == NON_LVALUE_EXPR 8970 || TREE_CODE (t) == STATIC_CAST_EXPR) 8971 && IMPLICIT_RVALUE_P (t)); 8972 } 8973 inline tree 8974 set_implicit_rvalue_p (tree ot) 8975 { 8976 tree t = ot; 8977 if (REFERENCE_REF_P (t)) 8978 t = TREE_OPERAND (t, 0); 8979 IMPLICIT_RVALUE_P (t) = 1; 8980 return ot; 8981 } 8982 8983 /* True if t is a "constrained auto" type-specifier. */ 8984 8985 inline bool 8986 is_constrained_auto (const_tree t) 8987 { 8988 return is_auto (t) && PLACEHOLDER_TYPE_CONSTRAINTS_INFO (t); 8989 } 8990 8991 /* True if CODE, a tree code, denotes a tree whose operand is not evaluated 8992 as per [expr.context], i.e., an operand to sizeof, typeof, decltype, or 8993 alignof. */ 8994 8995 inline bool 8996 unevaluated_p (tree_code code) 8997 { 8998 return (code == DECLTYPE_TYPE 8999 || code == ALIGNOF_EXPR 9000 || code == SIZEOF_EXPR 9001 || code == NOEXCEPT_EXPR 9002 || code == REQUIRES_EXPR); 9003 } 9004 9005 /* RAII class to push/pop the access scope for T. */ 9006 9007 struct push_access_scope_guard 9008 { 9009 tree decl; 9010 push_access_scope_guard (tree t) 9011 : decl (t) 9012 { 9013 if (VAR_OR_FUNCTION_DECL_P (decl) 9014 || TREE_CODE (decl) == TYPE_DECL) 9015 push_access_scope (decl); 9016 else 9017 decl = NULL_TREE; 9018 } 9019 ~push_access_scope_guard () 9020 { 9021 if (decl) 9022 pop_access_scope (decl); 9023 } 9024 }; 9025 9026 /* True if TYPE is an extended floating-point type. */ 9027 9028 inline bool 9029 extended_float_type_p (tree type) 9030 { 9031 type = TYPE_MAIN_VARIANT (type); 9032 for (int i = 0; i < NUM_FLOATN_NX_TYPES; ++i) 9033 if (type == FLOATN_TYPE_NODE (i)) 9034 return true; 9035 if (type == bfloat16_type_node) 9036 return true; 9037 return false; 9038 } 9039 9040 /* True if DECL is name-independent declaration. */ 9041 9042 inline bool 9043 name_independent_decl_p (tree decl) 9044 { 9045 return ((VAR_P (decl) || TREE_CODE (decl) == FIELD_DECL) 9046 && DECL_NAME (decl) 9047 && id_equal (DECL_NAME (decl), "_") 9048 && !TREE_STATIC (decl) 9049 && !DECL_EXTERNAL (decl)); 9050 } 9051 9052 #if CHECKING_P 9053 namespace selftest { 9054 extern void run_cp_tests (void); 9055 9056 /* Declarations for specific families of tests within cp, 9057 by source file, in alphabetical order. */ 9058 extern void cp_pt_cc_tests (); 9059 extern void cp_tree_cc_tests (void); 9060 } // namespace selftest 9061 #endif /* #if CHECKING_P */ 9062 9063 /* -- end of C++ */ 9064 9065 #endif /* ! GCC_CP_TREE_H */ 9066
Indexes created Mon Jun 15 00:25:07 UTC 2026