1 /* Definitions for C++ parsing and type checking. 2 Copyright (C) 1987-2020 Free Software Foundation, Inc. 3 Contributed by Michael Tiemann (tiemann@cygnus.com) 4 5 This file is part of GCC. 6 7 GCC is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3, or (at your option) 10 any later version. 11 12 GCC is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with GCC; see the file COPYING3. If not see 19 <http://www.gnu.org/licenses/>. */ 20 21 #ifndef GCC_CP_TREE_H 22 #define GCC_CP_TREE_H 23 24 #include "tm.h" 25 #include "hard-reg-set.h" 26 #include "function.h" 27 28 /* In order for the format checking to accept the C++ front end 29 diagnostic framework extensions, you must include this file before 30 diagnostic-core.h, not after. We override the definition of GCC_DIAG_STYLE 31 in c-common.h. */ 32 #undef GCC_DIAG_STYLE 33 #define GCC_DIAG_STYLE __gcc_cxxdiag__ 34 #if defined(GCC_DIAGNOSTIC_CORE_H) || defined (GCC_C_COMMON_H) 35 #error \ 36 In order for the format checking to accept the C++ front end diagnostic \ 37 framework extensions, you must include this file before diagnostic-core.h and \ 38 c-common.h, not after. 39 #endif 40 #include "c-family/c-common.h" 41 #include "diagnostic.h" 42 43 /* A tree node, together with a location, so that we can track locations 44 (and ranges) during parsing. 45 46 The location is redundant for node kinds that have locations, 47 but not all node kinds do (e.g. constants, and references to 48 params, locals, etc), so we stash a copy here. */ 49 50 extern location_t cp_expr_location (const_tree); 51 52 class cp_expr 53 { 54 public: 55 cp_expr () : 56 m_value (NULL), m_loc (UNKNOWN_LOCATION) {} 57 58 cp_expr (tree value) : 59 m_value (value), m_loc (cp_expr_location (m_value)) {} 60 61 cp_expr (tree value, location_t loc): 62 m_value (value), m_loc (loc) 63 { 64 protected_set_expr_location (value, loc); 65 } 66 67 /* Implicit conversions to tree. */ 68 operator tree () const { return m_value; } 69 tree & operator* () { return m_value; } 70 tree operator* () const { return m_value; } 71 tree & operator-> () { return m_value; } 72 tree operator-> () const { return m_value; } 73 74 tree get_value () const { return m_value; } 75 location_t get_location () const { return m_loc; } 76 location_t get_start () const 77 { 78 source_range src_range = get_range_from_loc (line_table, m_loc); 79 return src_range.m_start; 80 } 81 location_t get_finish () const 82 { 83 source_range src_range = get_range_from_loc (line_table, m_loc); 84 return src_range.m_finish; 85 } 86 87 void set_location (location_t loc) 88 { 89 protected_set_expr_location (m_value, loc); 90 m_loc = loc; 91 } 92 93 void set_range (location_t start, location_t finish) 94 { 95 set_location (make_location (m_loc, start, finish)); 96 } 97 98 cp_expr& maybe_add_location_wrapper () 99 { 100 m_value = maybe_wrap_with_location (m_value, m_loc); 101 return *this; 102 } 103 104 private: 105 tree m_value; 106 location_t m_loc; 107 }; 108 109 inline bool 110 operator == (const cp_expr &lhs, tree rhs) 111 { 112 return lhs.get_value () == rhs; 113 } 114 115 116 enum cp_tree_index 117 { 118 CPTI_WCHAR_DECL, 119 CPTI_VTABLE_ENTRY_TYPE, 120 CPTI_DELTA_TYPE, 121 CPTI_VTABLE_INDEX_TYPE, 122 CPTI_CLEANUP_TYPE, 123 CPTI_VTT_PARM_TYPE, 124 125 CPTI_CLASS_TYPE, 126 CPTI_UNKNOWN_TYPE, 127 CPTI_INIT_LIST_TYPE, 128 CPTI_VTBL_TYPE, 129 CPTI_VTBL_PTR_TYPE, 130 CPTI_STD, 131 CPTI_ABI, 132 CPTI_GLOBAL, 133 CPTI_GLOBAL_TYPE, 134 CPTI_CONST_TYPE_INFO_TYPE, 135 CPTI_TYPE_INFO_PTR_TYPE, 136 CPTI_ABORT_FNDECL, 137 CPTI_AGGR_TAG, 138 CPTI_CONV_OP_MARKER, 139 140 CPTI_CTOR_IDENTIFIER, 141 CPTI_COMPLETE_CTOR_IDENTIFIER, 142 CPTI_BASE_CTOR_IDENTIFIER, 143 CPTI_DTOR_IDENTIFIER, 144 CPTI_COMPLETE_DTOR_IDENTIFIER, 145 CPTI_BASE_DTOR_IDENTIFIER, 146 CPTI_DELETING_DTOR_IDENTIFIER, 147 CPTI_CONV_OP_IDENTIFIER, 148 CPTI_DELTA_IDENTIFIER, 149 CPTI_IN_CHARGE_IDENTIFIER, 150 CPTI_VTT_PARM_IDENTIFIER, 151 CPTI_THIS_IDENTIFIER, 152 CPTI_PFN_IDENTIFIER, 153 CPTI_VPTR_IDENTIFIER, 154 CPTI_GLOBAL_IDENTIFIER, 155 CPTI_ANON_IDENTIFIER, 156 CPTI_AUTO_IDENTIFIER, 157 CPTI_DECLTYPE_AUTO_IDENTIFIER, 158 CPTI_INIT_LIST_IDENTIFIER, 159 CPTI_FOR_RANGE__IDENTIFIER, 160 CPTI_FOR_BEGIN__IDENTIFIER, 161 CPTI_FOR_END__IDENTIFIER, 162 CPTI_FOR_RANGE_IDENTIFIER, 163 CPTI_FOR_BEGIN_IDENTIFIER, 164 CPTI_FOR_END_IDENTIFIER, 165 CPTI_ABI_TAG_IDENTIFIER, 166 CPTI_ALIGNED_IDENTIFIER, 167 CPTI_BEGIN_IDENTIFIER, 168 CPTI_END_IDENTIFIER, 169 CPTI_GET_IDENTIFIER, 170 CPTI_GNU_IDENTIFIER, 171 CPTI_TUPLE_ELEMENT_IDENTIFIER, 172 CPTI_TUPLE_SIZE_IDENTIFIER, 173 CPTI_TYPE_IDENTIFIER, 174 CPTI_VALUE_IDENTIFIER, 175 CPTI_FUN_IDENTIFIER, 176 CPTI_CLOSURE_IDENTIFIER, 177 CPTI_HEAP_UNINIT_IDENTIFIER, 178 CPTI_HEAP_IDENTIFIER, 179 CPTI_HEAP_DELETED_IDENTIFIER, 180 181 CPTI_LANG_NAME_C, 182 CPTI_LANG_NAME_CPLUSPLUS, 183 184 CPTI_EMPTY_EXCEPT_SPEC, 185 CPTI_NOEXCEPT_TRUE_SPEC, 186 CPTI_NOEXCEPT_FALSE_SPEC, 187 CPTI_NOEXCEPT_DEFERRED_SPEC, 188 189 CPTI_TERMINATE_FN, 190 CPTI_CALL_UNEXPECTED_FN, 191 CPTI_GET_EXCEPTION_PTR_FN, 192 CPTI_BEGIN_CATCH_FN, 193 CPTI_END_CATCH_FN, 194 CPTI_ALLOCATE_EXCEPTION_FN, 195 CPTI_FREE_EXCEPTION_FN, 196 CPTI_THROW_FN, 197 CPTI_RETHROW_FN, 198 CPTI_ATEXIT_FN_PTR_TYPE, 199 CPTI_ATEXIT, 200 CPTI_DSO_HANDLE, 201 CPTI_DCAST, 202 203 CPTI_NULLPTR, 204 CPTI_NULLPTR_TYPE, 205 206 CPTI_ALIGN_TYPE, 207 208 CPTI_ANY_TARG, 209 210 CPTI_SOURCE_LOCATION_IMPL, 211 212 CPTI_FALLBACK_DFLOAT32_TYPE, 213 CPTI_FALLBACK_DFLOAT64_TYPE, 214 CPTI_FALLBACK_DFLOAT128_TYPE, 215 216 CPTI_MAX 217 }; 218 219 extern GTY(()) tree cp_global_trees[CPTI_MAX]; 220 221 #define wchar_decl_node cp_global_trees[CPTI_WCHAR_DECL] 222 #define vtable_entry_type cp_global_trees[CPTI_VTABLE_ENTRY_TYPE] 223 /* The type used to represent an offset by which to adjust the `this' 224 pointer in pointer-to-member types. */ 225 #define delta_type_node cp_global_trees[CPTI_DELTA_TYPE] 226 /* The type used to represent an index into the vtable. */ 227 #define vtable_index_type cp_global_trees[CPTI_VTABLE_INDEX_TYPE] 228 229 #define class_type_node cp_global_trees[CPTI_CLASS_TYPE] 230 #define unknown_type_node cp_global_trees[CPTI_UNKNOWN_TYPE] 231 #define init_list_type_node cp_global_trees[CPTI_INIT_LIST_TYPE] 232 #define vtbl_type_node cp_global_trees[CPTI_VTBL_TYPE] 233 #define vtbl_ptr_type_node cp_global_trees[CPTI_VTBL_PTR_TYPE] 234 #define std_node cp_global_trees[CPTI_STD] 235 #define abi_node cp_global_trees[CPTI_ABI] 236 #define global_namespace cp_global_trees[CPTI_GLOBAL] 237 #define global_type_node cp_global_trees[CPTI_GLOBAL_TYPE] 238 #define const_type_info_type_node cp_global_trees[CPTI_CONST_TYPE_INFO_TYPE] 239 #define type_info_ptr_type cp_global_trees[CPTI_TYPE_INFO_PTR_TYPE] 240 #define conv_op_marker cp_global_trees[CPTI_CONV_OP_MARKER] 241 #define abort_fndecl cp_global_trees[CPTI_ABORT_FNDECL] 242 #define current_aggr cp_global_trees[CPTI_AGGR_TAG] 243 #define nullptr_node cp_global_trees[CPTI_NULLPTR] 244 #define nullptr_type_node cp_global_trees[CPTI_NULLPTR_TYPE] 245 /* std::align_val_t */ 246 #define align_type_node cp_global_trees[CPTI_ALIGN_TYPE] 247 248 /* We cache these tree nodes so as to call get_identifier less frequently. 249 For identifiers for functions, including special member functions such 250 as ctors and assignment operators, the nodes can be used (among other 251 things) to iterate over their overloads defined by/for a type. For 252 example: 253 254 tree ovlid = assign_op_identifier; 255 tree overloads = get_class_binding (type, ovlid); 256 for (ovl_iterator it (overloads); it; ++it) { ... } 257 258 iterates over the set of implicitly and explicitly defined overloads 259 of the assignment operator for type (including the copy and move 260 assignment operators, whether deleted or not). */ 261 262 /* The name of a constructor that takes an in-charge parameter to 263 decide whether or not to construct virtual base classes. */ 264 #define ctor_identifier cp_global_trees[CPTI_CTOR_IDENTIFIER] 265 /* The name of a constructor that constructs virtual base classes. */ 266 #define complete_ctor_identifier cp_global_trees[CPTI_COMPLETE_CTOR_IDENTIFIER] 267 /* The name of a constructor that does not construct virtual base classes. */ 268 #define base_ctor_identifier cp_global_trees[CPTI_BASE_CTOR_IDENTIFIER] 269 /* The name of a destructor that takes an in-charge parameter to 270 decide whether or not to destroy virtual base classes and whether 271 or not to delete the object. */ 272 #define dtor_identifier cp_global_trees[CPTI_DTOR_IDENTIFIER] 273 /* The name of a destructor that destroys virtual base classes. */ 274 #define complete_dtor_identifier cp_global_trees[CPTI_COMPLETE_DTOR_IDENTIFIER] 275 /* The name of a destructor that does not destroy virtual base 276 classes. */ 277 #define base_dtor_identifier cp_global_trees[CPTI_BASE_DTOR_IDENTIFIER] 278 /* The name of a destructor that destroys virtual base classes, and 279 then deletes the entire object. */ 280 #define deleting_dtor_identifier cp_global_trees[CPTI_DELETING_DTOR_IDENTIFIER] 281 282 /* The name used for conversion operators -- but note that actual 283 conversion functions use special identifiers outside the identifier 284 table. */ 285 #define conv_op_identifier cp_global_trees[CPTI_CONV_OP_IDENTIFIER] 286 287 #define delta_identifier cp_global_trees[CPTI_DELTA_IDENTIFIER] 288 #define in_charge_identifier cp_global_trees[CPTI_IN_CHARGE_IDENTIFIER] 289 /* The name of the parameter that contains a pointer to the VTT to use 290 for this subobject constructor or destructor. */ 291 #define vtt_parm_identifier cp_global_trees[CPTI_VTT_PARM_IDENTIFIER] 292 #define this_identifier cp_global_trees[CPTI_THIS_IDENTIFIER] 293 #define pfn_identifier cp_global_trees[CPTI_PFN_IDENTIFIER] 294 #define vptr_identifier cp_global_trees[CPTI_VPTR_IDENTIFIER] 295 /* The name of the ::, std & anon namespaces. */ 296 #define global_identifier cp_global_trees[CPTI_GLOBAL_IDENTIFIER] 297 #define anon_identifier cp_global_trees[CPTI_ANON_IDENTIFIER] 298 /* auto and declspec(auto) identifiers. */ 299 #define auto_identifier cp_global_trees[CPTI_AUTO_IDENTIFIER] 300 #define decltype_auto_identifier cp_global_trees[CPTI_DECLTYPE_AUTO_IDENTIFIER] 301 #define init_list_identifier cp_global_trees[CPTI_INIT_LIST_IDENTIFIER] 302 #define for_range__identifier cp_global_trees[CPTI_FOR_RANGE__IDENTIFIER] 303 #define for_begin__identifier cp_global_trees[CPTI_FOR_BEGIN__IDENTIFIER] 304 #define for_end__identifier cp_global_trees[CPTI_FOR_END__IDENTIFIER] 305 #define for_range_identifier cp_global_trees[CPTI_FOR_RANGE_IDENTIFIER] 306 #define for_begin_identifier cp_global_trees[CPTI_FOR_BEGIN_IDENTIFIER] 307 #define for_end_identifier cp_global_trees[CPTI_FOR_END_IDENTIFIER] 308 #define abi_tag_identifier cp_global_trees[CPTI_ABI_TAG_IDENTIFIER] 309 #define aligned_identifier cp_global_trees[CPTI_ALIGNED_IDENTIFIER] 310 #define begin_identifier cp_global_trees[CPTI_BEGIN_IDENTIFIER] 311 #define end_identifier cp_global_trees[CPTI_END_IDENTIFIER] 312 #define get__identifier cp_global_trees[CPTI_GET_IDENTIFIER] 313 #define gnu_identifier cp_global_trees[CPTI_GNU_IDENTIFIER] 314 #define tuple_element_identifier cp_global_trees[CPTI_TUPLE_ELEMENT_IDENTIFIER] 315 #define tuple_size_identifier cp_global_trees[CPTI_TUPLE_SIZE_IDENTIFIER] 316 #define type_identifier cp_global_trees[CPTI_TYPE_IDENTIFIER] 317 #define value_identifier cp_global_trees[CPTI_VALUE_IDENTIFIER] 318 #define fun_identifier cp_global_trees[CPTI_FUN_IDENTIFIER] 319 #define closure_identifier cp_global_trees[CPTI_CLOSURE_IDENTIFIER] 320 #define heap_uninit_identifier cp_global_trees[CPTI_HEAP_UNINIT_IDENTIFIER] 321 #define heap_identifier cp_global_trees[CPTI_HEAP_IDENTIFIER] 322 #define heap_deleted_identifier cp_global_trees[CPTI_HEAP_DELETED_IDENTIFIER] 323 #define lang_name_c cp_global_trees[CPTI_LANG_NAME_C] 324 #define lang_name_cplusplus cp_global_trees[CPTI_LANG_NAME_CPLUSPLUS] 325 326 /* Exception specifiers used for throw(), noexcept(true), 327 noexcept(false) and deferred noexcept. We rely on these being 328 uncloned. */ 329 #define empty_except_spec cp_global_trees[CPTI_EMPTY_EXCEPT_SPEC] 330 #define noexcept_true_spec cp_global_trees[CPTI_NOEXCEPT_TRUE_SPEC] 331 #define noexcept_false_spec cp_global_trees[CPTI_NOEXCEPT_FALSE_SPEC] 332 #define noexcept_deferred_spec cp_global_trees[CPTI_NOEXCEPT_DEFERRED_SPEC] 333 334 /* Exception handling function declarations. */ 335 #define terminate_fn cp_global_trees[CPTI_TERMINATE_FN] 336 #define call_unexpected_fn cp_global_trees[CPTI_CALL_UNEXPECTED_FN] 337 #define get_exception_ptr_fn cp_global_trees[CPTI_GET_EXCEPTION_PTR_FN] 338 #define begin_catch_fn cp_global_trees[CPTI_BEGIN_CATCH_FN] 339 #define end_catch_fn cp_global_trees[CPTI_END_CATCH_FN] 340 #define allocate_exception_fn cp_global_trees[CPTI_ALLOCATE_EXCEPTION_FN] 341 #define free_exception_fn cp_global_trees[CPTI_FREE_EXCEPTION_FN] 342 #define throw_fn cp_global_trees[CPTI_THROW_FN] 343 #define rethrow_fn cp_global_trees[CPTI_RETHROW_FN] 344 345 /* The type of the function-pointer argument to "__cxa_atexit" (or 346 "std::atexit", if "__cxa_atexit" is not being used). */ 347 #define atexit_fn_ptr_type_node cp_global_trees[CPTI_ATEXIT_FN_PTR_TYPE] 348 349 /* A pointer to `std::atexit'. */ 350 #define atexit_node cp_global_trees[CPTI_ATEXIT] 351 352 /* A pointer to `__dso_handle'. */ 353 #define dso_handle_node cp_global_trees[CPTI_DSO_HANDLE] 354 355 /* The declaration of the dynamic_cast runtime. */ 356 #define dynamic_cast_node cp_global_trees[CPTI_DCAST] 357 358 /* The type of a destructor. */ 359 #define cleanup_type cp_global_trees[CPTI_CLEANUP_TYPE] 360 361 /* The type of the vtt parameter passed to subobject constructors and 362 destructors. */ 363 #define vtt_parm_type cp_global_trees[CPTI_VTT_PARM_TYPE] 364 365 /* A node which matches any template argument. */ 366 #define any_targ_node cp_global_trees[CPTI_ANY_TARG] 367 368 /* std::source_location::__impl class. */ 369 #define source_location_impl cp_global_trees[CPTI_SOURCE_LOCATION_IMPL] 370 371 /* Node to indicate default access. This must be distinct from the 372 access nodes in tree.h. */ 373 374 #define access_default_node null_node 375 376 /* Variant of dfloat{32,64,128}_type_node only used for fundamental 377 rtti purposes if DFP is disabled. */ 378 #define fallback_dfloat32_type cp_global_trees[CPTI_FALLBACK_DFLOAT32_TYPE] 379 #define fallback_dfloat64_type cp_global_trees[CPTI_FALLBACK_DFLOAT64_TYPE] 380 #define fallback_dfloat128_type cp_global_trees[CPTI_FALLBACK_DFLOAT128_TYPE] 381 382 383 #include "name-lookup.h" 384 385 /* Usage of TREE_LANG_FLAG_?: 386 0: IDENTIFIER_KIND_BIT_0 (in IDENTIFIER_NODE) 387 NEW_EXPR_USE_GLOBAL (in NEW_EXPR). 388 COND_EXPR_IS_VEC_DELETE (in COND_EXPR). 389 DELETE_EXPR_USE_GLOBAL (in DELETE_EXPR). 390 COMPOUND_EXPR_OVERLOADED (in COMPOUND_EXPR). 391 CLEANUP_P (in TRY_BLOCK) 392 AGGR_INIT_VIA_CTOR_P (in AGGR_INIT_EXPR) 393 PTRMEM_OK_P (in ADDR_EXPR, OFFSET_REF, SCOPE_REF) 394 PAREN_STRING_LITERAL (in STRING_CST) 395 CP_DECL_THREAD_LOCAL_P (in VAR_DECL) 396 KOENIG_LOOKUP_P (in CALL_EXPR) 397 STATEMENT_LIST_NO_SCOPE (in STATEMENT_LIST). 398 EXPR_STMT_STMT_EXPR_RESULT (in EXPR_STMT) 399 STMT_EXPR_NO_SCOPE (in STMT_EXPR) 400 BIND_EXPR_TRY_BLOCK (in BIND_EXPR) 401 TYPENAME_IS_ENUM_P (in TYPENAME_TYPE) 402 OMP_FOR_GIMPLIFYING_P (in OMP_FOR, OMP_SIMD, OMP_DISTRIBUTE, 403 and OMP_TASKLOOP) 404 BASELINK_QUALIFIED_P (in BASELINK) 405 TARGET_EXPR_IMPLICIT_P (in TARGET_EXPR) 406 TEMPLATE_PARM_PARAMETER_PACK (in TEMPLATE_PARM_INDEX) 407 ATTR_IS_DEPENDENT (in the TREE_LIST for an attribute) 408 ABI_TAG_IMPLICIT (in the TREE_LIST for the argument of abi_tag) 409 LAMBDA_CAPTURE_EXPLICIT_P (in a TREE_LIST in LAMBDA_EXPR_CAPTURE_LIST) 410 CONSTRUCTOR_IS_DIRECT_INIT (in CONSTRUCTOR) 411 LAMBDA_EXPR_CAPTURES_THIS_P (in LAMBDA_EXPR) 412 DECLTYPE_FOR_LAMBDA_CAPTURE (in DECLTYPE_TYPE) 413 VEC_INIT_EXPR_IS_CONSTEXPR (in VEC_INIT_EXPR) 414 DECL_OVERRIDE_P (in FUNCTION_DECL) 415 IMPLICIT_CONV_EXPR_DIRECT_INIT (in IMPLICIT_CONV_EXPR) 416 TRANSACTION_EXPR_IS_STMT (in TRANSACTION_EXPR) 417 CONVERT_EXPR_VBASE_PATH (in CONVERT_EXPR) 418 PACK_EXPANSION_LOCAL_P (in *_PACK_EXPANSION) 419 TINFO_HAS_ACCESS_ERRORS (in TEMPLATE_INFO) 420 SIZEOF_EXPR_TYPE_P (in SIZEOF_EXPR) 421 COMPOUND_REQ_NOEXCEPT_P (in COMPOUND_REQ) 422 WILDCARD_PACK_P (in WILDCARD_DECL) 423 BLOCK_OUTER_CURLY_BRACE_P (in BLOCK) 424 FOLD_EXPR_MODOP_P (*_FOLD_EXPR) 425 IF_STMT_CONSTEXPR_P (IF_STMT) 426 TEMPLATE_TYPE_PARM_FOR_CLASS (TEMPLATE_TYPE_PARM) 427 DECL_NAMESPACE_INLINE_P (in NAMESPACE_DECL) 428 SWITCH_STMT_ALL_CASES_P (in SWITCH_STMT) 429 REINTERPRET_CAST_P (in NOP_EXPR) 430 ALIGNOF_EXPR_STD_P (in ALIGNOF_EXPR) 431 OVL_DEDUP_P (in OVERLOAD) 432 1: IDENTIFIER_KIND_BIT_1 (in IDENTIFIER_NODE) 433 TI_PENDING_TEMPLATE_FLAG. 434 TEMPLATE_PARMS_FOR_INLINE. 435 DELETE_EXPR_USE_VEC (in DELETE_EXPR). 436 (TREE_CALLS_NEW) (in _EXPR or _REF) (commented-out). 437 ICS_ELLIPSIS_FLAG (in _CONV) 438 DECL_INITIALIZED_P (in VAR_DECL) 439 TYPENAME_IS_CLASS_P (in TYPENAME_TYPE) 440 STMT_IS_FULL_EXPR_P (in _STMT) 441 TARGET_EXPR_LIST_INIT_P (in TARGET_EXPR) 442 LAMBDA_EXPR_MUTABLE_P (in LAMBDA_EXPR) 443 DECL_FINAL_P (in FUNCTION_DECL) 444 QUALIFIED_NAME_IS_TEMPLATE (in SCOPE_REF) 445 CONSTRUCTOR_IS_DEPENDENT (in CONSTRUCTOR) 446 TINFO_USED_TEMPLATE_ID (in TEMPLATE_INFO) 447 PACK_EXPANSION_SIZEOF_P (in *_PACK_EXPANSION) 448 OVL_USING_P (in OVERLOAD) 449 IMPLICIT_CONV_EXPR_NONTYPE_ARG (in IMPLICIT_CONV_EXPR) 450 2: IDENTIFIER_KIND_BIT_2 (in IDENTIFIER_NODE) 451 ICS_THIS_FLAG (in _CONV) 452 DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (in VAR_DECL) 453 STATEMENT_LIST_TRY_BLOCK (in STATEMENT_LIST) 454 TYPENAME_IS_RESOLVING_P (in TYPE_NAME_TYPE) 455 TARGET_EXPR_DIRECT_INIT_P (in TARGET_EXPR) 456 FNDECL_USED_AUTO (in FUNCTION_DECL) 457 DECLTYPE_FOR_LAMBDA_PROXY (in DECLTYPE_TYPE) 458 REF_PARENTHESIZED_P (in COMPONENT_REF, INDIRECT_REF, SCOPE_REF, VIEW_CONVERT_EXPR) 459 AGGR_INIT_ZERO_FIRST (in AGGR_INIT_EXPR) 460 CONSTRUCTOR_MUTABLE_POISON (in CONSTRUCTOR) 461 OVL_HIDDEN_P (in OVERLOAD) 462 SWITCH_STMT_NO_BREAK_P (in SWITCH_STMT) 463 LAMBDA_EXPR_CAPTURE_OPTIMIZED (in LAMBDA_EXPR) 464 IMPLICIT_CONV_EXPR_BRACED_INIT (in IMPLICIT_CONV_EXPR) 465 TINFO_VAR_DECLARED_CONSTINIT (in TEMPLATE_INFO) 466 CALL_FROM_NEW_OR_DELETE_P (in CALL_EXPR) 467 3: (TREE_REFERENCE_EXPR) (in NON_LVALUE_EXPR) (commented-out). 468 ICS_BAD_FLAG (in _CONV) 469 FN_TRY_BLOCK_P (in TRY_BLOCK) 470 BIND_EXPR_BODY_BLOCK (in BIND_EXPR) 471 CALL_EXPR_ORDERED_ARGS (in CALL_EXPR, AGGR_INIT_EXPR) 472 DECLTYPE_FOR_REF_CAPTURE (in DECLTYPE_TYPE) 473 CONSTRUCTOR_C99_COMPOUND_LITERAL (in CONSTRUCTOR) 474 OVL_NESTED_P (in OVERLOAD) 475 LAMBDA_EXPR_INSTANTIATED (in LAMBDA_EXPR) 476 Reserved for DECL_MODULE_EXPORT (in DECL_) 477 4: IDENTIFIER_MARKED (IDENTIFIER_NODEs) 478 TREE_HAS_CONSTRUCTOR (in INDIRECT_REF, SAVE_EXPR, CONSTRUCTOR, 479 CALL_EXPR, or FIELD_DECL). 480 DECL_TINFO_P (in VAR_DECL) 481 FUNCTION_REF_QUALIFIED (in FUNCTION_TYPE, METHOD_TYPE) 482 OVL_LOOKUP_P (in OVERLOAD) 483 LOOKUP_FOUND_P (in RECORD_TYPE, UNION_TYPE, NAMESPACE_DECL) 484 5: IDENTIFIER_VIRTUAL_P (in IDENTIFIER_NODE) 485 FUNCTION_RVALUE_QUALIFIED (in FUNCTION_TYPE, METHOD_TYPE) 486 CALL_EXPR_REVERSE_ARGS (in CALL_EXPR, AGGR_INIT_EXPR) 487 CONSTRUCTOR_PLACEHOLDER_BOUNDARY (in CONSTRUCTOR) 488 6: TYPE_MARKED_P (in _TYPE) 489 DECL_NON_TRIVIALLY_INITIALIZED_P (in VAR_DECL) 490 RANGE_FOR_IVDEP (in RANGE_FOR_STMT) 491 CALL_EXPR_OPERATOR_SYNTAX (in CALL_EXPR, AGGR_INIT_EXPR) 492 CONSTRUCTOR_IS_DESIGNATED_INIT (in CONSTRUCTOR) 493 494 Usage of TYPE_LANG_FLAG_?: 495 0: TYPE_DEPENDENT_P 496 1: TYPE_HAS_USER_CONSTRUCTOR. 497 2: TYPE_HAS_LATE_RETURN_TYPE (in FUNCTION_TYPE, METHOD_TYPE) 498 TYPE_PTRMEMFUNC_FLAG (in RECORD_TYPE) 499 4: TYPE_HAS_NONTRIVIAL_DESTRUCTOR 500 5: CLASS_TYPE_P (in RECORD_TYPE and UNION_TYPE) 501 ENUM_FIXED_UNDERLYING_TYPE_P (in ENUMERAL_TYPE) 502 AUTO_IS_DECLTYPE (in TEMPLATE_TYPE_PARM) 503 6: TYPE_DEPENDENT_P_VALID 504 505 Usage of DECL_LANG_FLAG_?: 506 0: DECL_TEMPLATE_PARM_P (in PARM_DECL, CONST_DECL, TYPE_DECL, or TEMPLATE_DECL) 507 DECL_LOCAL_FUNCTION_P (in FUNCTION_DECL) 508 DECL_MUTABLE_P (in FIELD_DECL) 509 DECL_DEPENDENT_P (in USING_DECL) 510 LABEL_DECL_BREAK (in LABEL_DECL) 511 1: C_TYPEDEF_EXPLICITLY_SIGNED (in TYPE_DECL). 512 DECL_TEMPLATE_INSTANTIATED (in a VAR_DECL or a FUNCTION_DECL) 513 DECL_MEMBER_TEMPLATE_P (in TEMPLATE_DECL) 514 USING_DECL_TYPENAME_P (in USING_DECL) 515 DECL_VLA_CAPTURE_P (in FIELD_DECL) 516 DECL_ARRAY_PARAMETER_P (in PARM_DECL) 517 LABEL_DECL_CONTINUE (in LABEL_DECL) 518 2: DECL_THIS_EXTERN (in VAR_DECL or FUNCTION_DECL). 519 DECL_IMPLICIT_TYPEDEF_P (in a TYPE_DECL) 520 DECL_CONSTRAINT_VAR_P (in a PARM_DECL) 521 TEMPLATE_DECL_COMPLEX_ALIAS_P (in TEMPLATE_DECL) 522 DECL_INSTANTIATING_NSDMI_P (in a FIELD_DECL) 523 LABEL_DECL_CDTOR (in LABEL_DECL) 524 3: DECL_IN_AGGR_P. 525 4: DECL_C_BIT_FIELD (in a FIELD_DECL) 526 DECL_ANON_UNION_VAR_P (in a VAR_DECL) 527 DECL_SELF_REFERENCE_P (in a TYPE_DECL) 528 DECL_INVALID_OVERRIDER_P (in a FUNCTION_DECL) 529 5: DECL_INTERFACE_KNOWN. 530 6: DECL_THIS_STATIC (in VAR_DECL or FUNCTION_DECL). 531 DECL_FIELD_IS_BASE (in FIELD_DECL) 532 TYPE_DECL_ALIAS_P (in TYPE_DECL) 533 7: DECL_THUNK_P (in a member FUNCTION_DECL) 534 DECL_NORMAL_CAPTURE_P (in FIELD_DECL) 535 8: DECL_DECLARED_CONSTEXPR_P (in VAR_DECL, FUNCTION_DECL) 536 537 Usage of language-independent fields in a language-dependent manner: 538 539 TYPE_ALIAS_SET 540 This field is used by TYPENAME_TYPEs, TEMPLATE_TYPE_PARMs, and so 541 forth as a substitute for the mark bits provided in `lang_type'. 542 At present, only the six low-order bits are used. 543 544 TYPE_LANG_SLOT_1 545 For a FUNCTION_TYPE or METHOD_TYPE, this is TYPE_RAISES_EXCEPTIONS. 546 For a POINTER_TYPE (to a METHOD_TYPE), this is TYPE_PTRMEMFUNC_TYPE. 547 For an ENUMERAL_TYPE, BOUND_TEMPLATE_TEMPLATE_PARM_TYPE, 548 RECORD_TYPE or UNION_TYPE this is TYPE_TEMPLATE_INFO, 549 550 BINFO_VIRTUALS 551 For a binfo, this is a TREE_LIST. There is an entry for each 552 virtual function declared either in BINFO or its direct and 553 indirect primary bases. 554 555 The BV_DELTA of each node gives the amount by which to adjust the 556 `this' pointer when calling the function. If the method is an 557 overridden version of a base class method, then it is assumed 558 that, prior to adjustment, the this pointer points to an object 559 of the base class. 560 561 The BV_VCALL_INDEX of each node, if non-NULL, gives the vtable 562 index of the vcall offset for this entry. 563 564 The BV_FN is the declaration for the virtual function itself. 565 566 If BV_LOST_PRIMARY is set, it means that this entry is for a lost 567 primary virtual base and can be left null in the vtable. 568 569 BINFO_VTABLE 570 This is an expression with POINTER_TYPE that gives the value 571 to which the vptr should be initialized. Use get_vtbl_decl_for_binfo 572 to extract the VAR_DECL for the complete vtable. 573 574 DECL_VINDEX 575 This field is NULL for a non-virtual function. For a virtual 576 function, it is eventually set to an INTEGER_CST indicating the 577 index in the vtable at which this function can be found. When 578 a virtual function is declared, but before it is known what 579 function is overridden, this field is the error_mark_node. 580 581 Temporarily, it may be set to a TREE_LIST whose TREE_VALUE is 582 the virtual function this one overrides, and whose TREE_CHAIN is 583 the old DECL_VINDEX. */ 584 585 /* Language-specific tree checkers. */ 586 587 #define VAR_OR_FUNCTION_DECL_CHECK(NODE) \ 588 TREE_CHECK2(NODE,VAR_DECL,FUNCTION_DECL) 589 590 #define TYPE_FUNCTION_OR_TEMPLATE_DECL_CHECK(NODE) \ 591 TREE_CHECK3(NODE,TYPE_DECL,TEMPLATE_DECL,FUNCTION_DECL) 592 593 #define TYPE_FUNCTION_OR_TEMPLATE_DECL_P(NODE) \ 594 (TREE_CODE (NODE) == TYPE_DECL || TREE_CODE (NODE) == TEMPLATE_DECL \ 595 || TREE_CODE (NODE) == FUNCTION_DECL) 596 597 #define VAR_FUNCTION_OR_PARM_DECL_CHECK(NODE) \ 598 TREE_CHECK3(NODE,VAR_DECL,FUNCTION_DECL,PARM_DECL) 599 600 #define VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK(NODE) \ 601 TREE_CHECK4(NODE,VAR_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL) 602 603 #define VAR_TEMPL_TYPE_FIELD_OR_FUNCTION_DECL_CHECK(NODE) \ 604 TREE_CHECK5(NODE,VAR_DECL,FIELD_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL) 605 606 #define BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK(NODE) \ 607 TREE_CHECK(NODE,BOUND_TEMPLATE_TEMPLATE_PARM) 608 609 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007) 610 611 /* Returns t iff the node can have a TEMPLATE_INFO field. */ 612 613 inline tree 614 template_info_decl_check (const_tree t, const char* f, int l, const char* fn) 615 { 616 switch (TREE_CODE (t)) 617 { 618 case VAR_DECL: 619 case FUNCTION_DECL: 620 case FIELD_DECL: 621 case TYPE_DECL: 622 case CONCEPT_DECL: 623 case TEMPLATE_DECL: 624 return const_cast<tree>(t); 625 default: 626 break; 627 } 628 tree_check_failed (t, f, l, fn, 629 VAR_DECL, FUNCTION_DECL, FIELD_DECL, TYPE_DECL, 630 CONCEPT_DECL, TEMPLATE_DECL, 0); 631 gcc_unreachable (); 632 } 633 634 #define TEMPLATE_INFO_DECL_CHECK(NODE) \ 635 template_info_decl_check ((NODE), __FILE__, __LINE__, __FUNCTION__) 636 637 #define THUNK_FUNCTION_CHECK(NODE) __extension__ \ 638 ({ __typeof (NODE) const __t = (NODE); \ 639 if (TREE_CODE (__t) != FUNCTION_DECL || !__t->decl_common.lang_specific \ 640 || !__t->decl_common.lang_specific->u.fn.thunk_p) \ 641 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, 0); \ 642 __t; }) 643 644 #else /* ENABLE_TREE_CHECKING */ 645 646 #define TEMPLATE_INFO_DECL_CHECK(NODE) (NODE) 647 #define THUNK_FUNCTION_CHECK(NODE) (NODE) 648 649 #endif /* ENABLE_TREE_CHECKING */ 650 651 /* Language-dependent contents of an identifier. */ 652 653 struct GTY(()) lang_identifier { 654 struct c_common_identifier c_common; 655 cxx_binding *bindings; 656 }; 657 658 /* Return a typed pointer version of T if it designates a 659 C++ front-end identifier. */ 660 inline lang_identifier* 661 identifier_p (tree t) 662 { 663 if (TREE_CODE (t) == IDENTIFIER_NODE) 664 return (lang_identifier*) t; 665 return NULL; 666 } 667 668 #define LANG_IDENTIFIER_CAST(NODE) \ 669 ((struct lang_identifier*)IDENTIFIER_NODE_CHECK (NODE)) 670 671 struct GTY(()) template_parm_index { 672 struct tree_common common; 673 int index; 674 int level; 675 int orig_level; 676 tree decl; 677 }; 678 679 struct GTY(()) ptrmem_cst { 680 struct tree_common common; 681 tree member; 682 }; 683 typedef struct ptrmem_cst * ptrmem_cst_t; 684 685 #define CLEANUP_P(NODE) TREE_LANG_FLAG_0 (TRY_BLOCK_CHECK (NODE)) 686 687 #define BIND_EXPR_TRY_BLOCK(NODE) \ 688 TREE_LANG_FLAG_0 (BIND_EXPR_CHECK (NODE)) 689 690 /* Used to mark the block around the member initializers and cleanups. */ 691 #define BIND_EXPR_BODY_BLOCK(NODE) \ 692 TREE_LANG_FLAG_3 (BIND_EXPR_CHECK (NODE)) 693 #define FUNCTION_NEEDS_BODY_BLOCK(NODE) \ 694 (DECL_CONSTRUCTOR_P (NODE) || DECL_DESTRUCTOR_P (NODE) \ 695 || LAMBDA_FUNCTION_P (NODE)) 696 697 #define STATEMENT_LIST_NO_SCOPE(NODE) \ 698 TREE_LANG_FLAG_0 (STATEMENT_LIST_CHECK (NODE)) 699 #define STATEMENT_LIST_TRY_BLOCK(NODE) \ 700 TREE_LANG_FLAG_2 (STATEMENT_LIST_CHECK (NODE)) 701 702 /* Mark the outer curly brace BLOCK. */ 703 #define BLOCK_OUTER_CURLY_BRACE_P(NODE) TREE_LANG_FLAG_0 (BLOCK_CHECK (NODE)) 704 705 /* Nonzero if this statement should be considered a full-expression, 706 i.e., if temporaries created during this statement should have 707 their destructors run at the end of this statement. */ 708 #define STMT_IS_FULL_EXPR_P(NODE) TREE_LANG_FLAG_1 ((NODE)) 709 710 /* Marks the result of a statement expression. */ 711 #define EXPR_STMT_STMT_EXPR_RESULT(NODE) \ 712 TREE_LANG_FLAG_0 (EXPR_STMT_CHECK (NODE)) 713 714 /* Nonzero if this statement-expression does not have an associated scope. */ 715 #define STMT_EXPR_NO_SCOPE(NODE) \ 716 TREE_LANG_FLAG_0 (STMT_EXPR_CHECK (NODE)) 717 718 #define COND_EXPR_IS_VEC_DELETE(NODE) \ 719 TREE_LANG_FLAG_0 (COND_EXPR_CHECK (NODE)) 720 721 /* Nonzero if this NOP_EXPR is a reinterpret_cast. Such conversions 722 are not constexprs. Other NOP_EXPRs are. */ 723 #define REINTERPRET_CAST_P(NODE) \ 724 TREE_LANG_FLAG_0 (NOP_EXPR_CHECK (NODE)) 725 726 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, in the usual 727 sense of `same'. */ 728 #define same_type_p(TYPE1, TYPE2) \ 729 comptypes ((TYPE1), (TYPE2), COMPARE_STRICT) 730 731 /* Returns nonzero iff NODE is a declaration for the global function 732 `main'. */ 733 #define DECL_MAIN_P(NODE) \ 734 (DECL_EXTERN_C_FUNCTION_P (NODE) \ 735 && DECL_NAME (NODE) != NULL_TREE \ 736 && MAIN_NAME_P (DECL_NAME (NODE)) \ 737 && flag_hosted) 738 739 /* Lookup walker marking. */ 740 #define LOOKUP_SEEN_P(NODE) TREE_VISITED(NODE) 741 #define LOOKUP_FOUND_P(NODE) \ 742 TREE_LANG_FLAG_4 (TREE_CHECK3(NODE,RECORD_TYPE,UNION_TYPE,NAMESPACE_DECL)) 743 744 /* These two accessors should only be used by OVL manipulators. 745 Other users should use iterators and convenience functions. */ 746 #define OVL_FUNCTION(NODE) \ 747 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->function) 748 #define OVL_CHAIN(NODE) \ 749 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->common.chain) 750 751 /* If set, this or a subsequent overload contains decls that need deduping. */ 752 #define OVL_DEDUP_P(NODE) TREE_LANG_FLAG_0 (OVERLOAD_CHECK (NODE)) 753 /* If set, this was imported in a using declaration. */ 754 #define OVL_USING_P(NODE) TREE_LANG_FLAG_1 (OVERLOAD_CHECK (NODE)) 755 /* If set, this overload is a hidden decl. */ 756 #define OVL_HIDDEN_P(NODE) TREE_LANG_FLAG_2 (OVERLOAD_CHECK (NODE)) 757 /* If set, this overload contains a nested overload. */ 758 #define OVL_NESTED_P(NODE) TREE_LANG_FLAG_3 (OVERLOAD_CHECK (NODE)) 759 /* If set, this overload was constructed during lookup. */ 760 #define OVL_LOOKUP_P(NODE) TREE_LANG_FLAG_4 (OVERLOAD_CHECK (NODE)) 761 762 /* The first decl of an overload. */ 763 #define OVL_FIRST(NODE) ovl_first (NODE) 764 /* The name of the overload set. */ 765 #define OVL_NAME(NODE) DECL_NAME (OVL_FIRST (NODE)) 766 767 /* Whether this is a set of overloaded functions. TEMPLATE_DECLS are 768 always wrapped in an OVERLOAD, so we don't need to check them 769 here. */ 770 #define OVL_P(NODE) \ 771 (TREE_CODE (NODE) == FUNCTION_DECL || TREE_CODE (NODE) == OVERLOAD) 772 /* Whether this is a single member overload. */ 773 #define OVL_SINGLE_P(NODE) \ 774 (TREE_CODE (NODE) != OVERLOAD || !OVL_CHAIN (NODE)) 775 776 /* OVL_HIDDEN_P nodes come before other nodes. */ 777 778 struct GTY(()) tree_overload { 779 struct tree_common common; 780 tree function; 781 }; 782 783 /* Iterator for a 1 dimensional overload. Permits iterating over the 784 outer level of a 2-d overload when explicitly enabled. */ 785 786 class ovl_iterator 787 { 788 tree ovl; 789 const bool allow_inner; /* Only used when checking. */ 790 791 public: 792 explicit ovl_iterator (tree o, bool allow = false) 793 : ovl (o), allow_inner (allow) 794 { 795 } 796 797 private: 798 /* Do not duplicate. */ 799 ovl_iterator &operator= (const ovl_iterator &); 800 ovl_iterator (const ovl_iterator &); 801 802 public: 803 operator bool () const 804 { 805 return ovl; 806 } 807 ovl_iterator &operator++ () 808 { 809 ovl = TREE_CODE (ovl) != OVERLOAD ? NULL_TREE : OVL_CHAIN (ovl); 810 return *this; 811 } 812 tree operator* () const 813 { 814 tree fn = TREE_CODE (ovl) != OVERLOAD ? ovl : OVL_FUNCTION (ovl); 815 816 /* Check this is not an unexpected 2-dimensional overload. */ 817 gcc_checking_assert (allow_inner || TREE_CODE (fn) != OVERLOAD); 818 819 return fn; 820 } 821 822 public: 823 /* Whether this overload was introduced by a using decl. */ 824 bool using_p () const 825 { 826 return (TREE_CODE (ovl) == USING_DECL 827 || (TREE_CODE (ovl) == OVERLOAD && OVL_USING_P (ovl))); 828 } 829 bool hidden_p () const 830 { 831 return TREE_CODE (ovl) == OVERLOAD && OVL_HIDDEN_P (ovl); 832 } 833 834 public: 835 tree remove_node (tree head) 836 { 837 return remove_node (head, ovl); 838 } 839 tree reveal_node (tree head) 840 { 841 return reveal_node (head, ovl); 842 } 843 844 protected: 845 /* If we have a nested overload, point at the inner overload and 846 return the next link on the outer one. */ 847 tree maybe_push () 848 { 849 tree r = NULL_TREE; 850 851 if (ovl && TREE_CODE (ovl) == OVERLOAD && OVL_NESTED_P (ovl)) 852 { 853 r = OVL_CHAIN (ovl); 854 ovl = OVL_FUNCTION (ovl); 855 } 856 return r; 857 } 858 /* Restore an outer nested overload. */ 859 void pop (tree outer) 860 { 861 gcc_checking_assert (!ovl); 862 ovl = outer; 863 } 864 865 private: 866 /* We make these static functions to avoid the address of the 867 iterator escaping the local context. */ 868 static tree remove_node (tree head, tree node); 869 static tree reveal_node (tree ovl, tree node); 870 }; 871 872 /* Iterator over a (potentially) 2 dimensional overload, which is 873 produced by name lookup. */ 874 875 class lkp_iterator : public ovl_iterator 876 { 877 typedef ovl_iterator parent; 878 879 tree outer; 880 881 public: 882 explicit lkp_iterator (tree o) 883 : parent (o, true), outer (maybe_push ()) 884 { 885 } 886 887 public: 888 lkp_iterator &operator++ () 889 { 890 bool repush = !outer; 891 892 if (!parent::operator++ () && !repush) 893 { 894 pop (outer); 895 repush = true; 896 } 897 898 if (repush) 899 outer = maybe_push (); 900 901 return *this; 902 } 903 }; 904 905 /* hash traits for declarations. Hashes potential overload sets via 906 DECL_NAME. */ 907 908 struct named_decl_hash : ggc_remove <tree> 909 { 910 typedef tree value_type; /* A DECL or OVERLOAD */ 911 typedef tree compare_type; /* An identifier. */ 912 913 inline static hashval_t hash (const value_type decl); 914 inline static bool equal (const value_type existing, compare_type candidate); 915 916 static const bool empty_zero_p = true; 917 static inline void mark_empty (value_type &p) {p = NULL_TREE;} 918 static inline bool is_empty (value_type p) {return !p;} 919 920 /* Nothing is deletable. Everything is insertable. */ 921 static bool is_deleted (value_type) { return false; } 922 static void mark_deleted (value_type) { gcc_unreachable (); } 923 }; 924 925 /* Simplified unique_ptr clone to release a tree vec on exit. */ 926 927 class releasing_vec 928 { 929 public: 930 typedef vec<tree, va_gc> vec_t; 931 932 releasing_vec (vec_t *v): v(v) { } 933 releasing_vec (): v(make_tree_vector ()) { } 934 935 /* Copy ops are deliberately declared but not defined, 936 copies must always be elided. */ 937 releasing_vec (const releasing_vec &); 938 releasing_vec &operator= (const releasing_vec &); 939 940 vec_t &operator* () const { return *v; } 941 vec_t *operator-> () const { return v; } 942 vec_t *get() const { return v; } 943 operator vec_t *() const { return v; } 944 vec_t ** operator& () { return &v; } 945 946 /* Breaks pointer/value consistency for convenience. */ 947 tree& operator[] (unsigned i) const { return (*v)[i]; } 948 949 ~releasing_vec() { release_tree_vector (v); } 950 private: 951 vec_t *v; 952 }; 953 /* Forwarding functions for vec_safe_* that might reallocate. */ 954 inline tree* vec_safe_push (releasing_vec& r, const tree &t CXX_MEM_STAT_INFO) 955 { return vec_safe_push (*&r, t PASS_MEM_STAT); } 956 inline bool vec_safe_reserve (releasing_vec& r, unsigned n, bool e = false CXX_MEM_STAT_INFO) 957 { return vec_safe_reserve (*&r, n, e PASS_MEM_STAT); } 958 inline unsigned vec_safe_length (releasing_vec &r) 959 { return r->length(); } 960 inline void vec_safe_splice (releasing_vec &r, vec<tree, va_gc> *p CXX_MEM_STAT_INFO) 961 { vec_safe_splice (*&r, p PASS_MEM_STAT); } 962 void release_tree_vector (releasing_vec &); // cause link error 963 964 struct GTY(()) tree_template_decl { 965 struct tree_decl_common common; 966 tree arguments; 967 tree result; 968 }; 969 970 /* Returns true iff NODE is a BASELINK. */ 971 #define BASELINK_P(NODE) \ 972 (TREE_CODE (NODE) == BASELINK) 973 /* The BINFO indicating the base in which lookup found the 974 BASELINK_FUNCTIONS. */ 975 #define BASELINK_BINFO(NODE) \ 976 (((struct tree_baselink*) BASELINK_CHECK (NODE))->binfo) 977 /* The functions referred to by the BASELINK; either a FUNCTION_DECL, 978 a TEMPLATE_DECL, an OVERLOAD, or a TEMPLATE_ID_EXPR. */ 979 #define BASELINK_FUNCTIONS(NODE) \ 980 (((struct tree_baselink*) BASELINK_CHECK (NODE))->functions) 981 /* If T is a BASELINK, grab the functions, otherwise just T, which is 982 expected to already be a (list of) functions. */ 983 #define MAYBE_BASELINK_FUNCTIONS(T) \ 984 (BASELINK_P (T) ? BASELINK_FUNCTIONS (T) : T) 985 /* The BINFO in which the search for the functions indicated by this baselink 986 began. This base is used to determine the accessibility of functions 987 selected by overload resolution. */ 988 #define BASELINK_ACCESS_BINFO(NODE) \ 989 (((struct tree_baselink*) BASELINK_CHECK (NODE))->access_binfo) 990 /* For a type-conversion operator, the BASELINK_OPTYPE indicates the type 991 to which the conversion should occur. This value is important if 992 the BASELINK_FUNCTIONS include a template conversion operator -- 993 the BASELINK_OPTYPE can be used to determine what type the user 994 requested. */ 995 #define BASELINK_OPTYPE(NODE) \ 996 (TREE_CHAIN (BASELINK_CHECK (NODE))) 997 /* Nonzero if this baselink was from a qualified lookup. */ 998 #define BASELINK_QUALIFIED_P(NODE) \ 999 TREE_LANG_FLAG_0 (BASELINK_CHECK (NODE)) 1000 1001 struct GTY(()) tree_baselink { 1002 struct tree_common common; 1003 tree binfo; 1004 tree functions; 1005 tree access_binfo; 1006 }; 1007 1008 /* The different kinds of ids that we encounter. */ 1009 1010 enum cp_id_kind 1011 { 1012 /* Not an id at all. */ 1013 CP_ID_KIND_NONE, 1014 /* An unqualified-id that is not a template-id. */ 1015 CP_ID_KIND_UNQUALIFIED, 1016 /* An unqualified-id that is a dependent name. */ 1017 CP_ID_KIND_UNQUALIFIED_DEPENDENT, 1018 /* An unqualified template-id. */ 1019 CP_ID_KIND_TEMPLATE_ID, 1020 /* A qualified-id. */ 1021 CP_ID_KIND_QUALIFIED 1022 }; 1023 1024 1025 /* The various kinds of C++0x warnings we encounter. */ 1026 1027 enum cpp0x_warn_str 1028 { 1029 /* extended initializer lists */ 1030 CPP0X_INITIALIZER_LISTS, 1031 /* explicit conversion operators */ 1032 CPP0X_EXPLICIT_CONVERSION, 1033 /* variadic templates */ 1034 CPP0X_VARIADIC_TEMPLATES, 1035 /* lambda expressions */ 1036 CPP0X_LAMBDA_EXPR, 1037 /* C++0x auto */ 1038 CPP0X_AUTO, 1039 /* scoped enums */ 1040 CPP0X_SCOPED_ENUMS, 1041 /* defaulted and deleted functions */ 1042 CPP0X_DEFAULTED_DELETED, 1043 /* inline namespaces */ 1044 CPP0X_INLINE_NAMESPACES, 1045 /* override controls, override/final */ 1046 CPP0X_OVERRIDE_CONTROLS, 1047 /* non-static data member initializers */ 1048 CPP0X_NSDMI, 1049 /* user defined literals */ 1050 CPP0X_USER_DEFINED_LITERALS, 1051 /* delegating constructors */ 1052 CPP0X_DELEGATING_CTORS, 1053 /* inheriting constructors */ 1054 CPP0X_INHERITING_CTORS, 1055 /* C++11 attributes */ 1056 CPP0X_ATTRIBUTES, 1057 /* ref-qualified member functions */ 1058 CPP0X_REF_QUALIFIER 1059 }; 1060 1061 /* The various kinds of operation used by composite_pointer_type. */ 1062 1063 enum composite_pointer_operation 1064 { 1065 /* comparison */ 1066 CPO_COMPARISON, 1067 /* conversion */ 1068 CPO_CONVERSION, 1069 /* conditional expression */ 1070 CPO_CONDITIONAL_EXPR 1071 }; 1072 1073 /* Possible cases of expression list used by build_x_compound_expr_from_list. */ 1074 enum expr_list_kind { 1075 ELK_INIT, /* initializer */ 1076 ELK_MEM_INIT, /* member initializer */ 1077 ELK_FUNC_CAST /* functional cast */ 1078 }; 1079 1080 /* Possible cases of implicit bad rhs conversions. */ 1081 enum impl_conv_rhs { 1082 ICR_DEFAULT_ARGUMENT, /* default argument */ 1083 ICR_CONVERTING, /* converting */ 1084 ICR_INIT, /* initialization */ 1085 ICR_ARGPASS, /* argument passing */ 1086 ICR_RETURN, /* return */ 1087 ICR_ASSIGN /* assignment */ 1088 }; 1089 1090 /* Possible cases of implicit or explicit bad conversions to void. */ 1091 enum impl_conv_void { 1092 ICV_CAST, /* (explicit) conversion to void */ 1093 ICV_SECOND_OF_COND, /* second operand of conditional expression */ 1094 ICV_THIRD_OF_COND, /* third operand of conditional expression */ 1095 ICV_RIGHT_OF_COMMA, /* right operand of comma operator */ 1096 ICV_LEFT_OF_COMMA, /* left operand of comma operator */ 1097 ICV_STATEMENT, /* statement */ 1098 ICV_THIRD_IN_FOR /* for increment expression */ 1099 }; 1100 1101 /* Possible invalid uses of an abstract class that might not have a 1102 specific associated declaration. */ 1103 enum GTY(()) abstract_class_use { 1104 ACU_UNKNOWN, /* unknown or decl provided */ 1105 ACU_CAST, /* cast to abstract class */ 1106 ACU_NEW, /* new-expression of abstract class */ 1107 ACU_THROW, /* throw-expression of abstract class */ 1108 ACU_CATCH, /* catch-parameter of abstract class */ 1109 ACU_ARRAY, /* array of abstract class */ 1110 ACU_RETURN, /* return type of abstract class */ 1111 ACU_PARM /* parameter type of abstract class */ 1112 }; 1113 1114 /* Macros for access to language-specific slots in an identifier. */ 1115 1116 /* The IDENTIFIER_BINDING is the innermost cxx_binding for the 1117 identifier. Its PREVIOUS is the next outermost binding. Each 1118 VALUE field is a DECL for the associated declaration. Thus, 1119 name lookup consists simply of pulling off the node at the front 1120 of the list (modulo oddities for looking up the names of types, 1121 and such.) You can use SCOPE field to determine the scope 1122 that bound the name. */ 1123 #define IDENTIFIER_BINDING(NODE) \ 1124 (LANG_IDENTIFIER_CAST (NODE)->bindings) 1125 1126 /* TREE_TYPE only indicates on local and class scope the current 1127 type. For namespace scope, the presence of a type in any namespace 1128 is indicated with global_type_node, and the real type behind must 1129 be found through lookup. */ 1130 #define IDENTIFIER_TYPE_VALUE(NODE) identifier_type_value (NODE) 1131 #define REAL_IDENTIFIER_TYPE_VALUE(NODE) TREE_TYPE (NODE) 1132 #define SET_IDENTIFIER_TYPE_VALUE(NODE,TYPE) (TREE_TYPE (NODE) = (TYPE)) 1133 #define IDENTIFIER_HAS_TYPE_VALUE(NODE) (IDENTIFIER_TYPE_VALUE (NODE) ? 1 : 0) 1134 1135 /* Kinds of identifiers. Values are carefully chosen. */ 1136 enum cp_identifier_kind { 1137 cik_normal = 0, /* Not a special identifier. */ 1138 cik_keyword = 1, /* A keyword. */ 1139 cik_ctor = 2, /* Constructor (in-chg, complete or base). */ 1140 cik_dtor = 3, /* Destructor (in-chg, deleting, complete or 1141 base). */ 1142 cik_simple_op = 4, /* Non-assignment operator name. */ 1143 cik_assign_op = 5, /* An assignment operator name. */ 1144 cik_conv_op = 6, /* Conversion operator name. */ 1145 cik_reserved_for_udlit = 7, /* Not yet in use */ 1146 cik_max 1147 }; 1148 1149 /* Kind bits. */ 1150 #define IDENTIFIER_KIND_BIT_0(NODE) \ 1151 TREE_LANG_FLAG_0 (IDENTIFIER_NODE_CHECK (NODE)) 1152 #define IDENTIFIER_KIND_BIT_1(NODE) \ 1153 TREE_LANG_FLAG_1 (IDENTIFIER_NODE_CHECK (NODE)) 1154 #define IDENTIFIER_KIND_BIT_2(NODE) \ 1155 TREE_LANG_FLAG_2 (IDENTIFIER_NODE_CHECK (NODE)) 1156 1157 /* Used by various search routines. */ 1158 #define IDENTIFIER_MARKED(NODE) \ 1159 TREE_LANG_FLAG_4 (IDENTIFIER_NODE_CHECK (NODE)) 1160 1161 /* Nonzero if this identifier is used as a virtual function name somewhere 1162 (optimizes searches). */ 1163 #define IDENTIFIER_VIRTUAL_P(NODE) \ 1164 TREE_LANG_FLAG_5 (IDENTIFIER_NODE_CHECK (NODE)) 1165 1166 /* True if this identifier is a reserved word. C_RID_CODE (node) is 1167 then the RID_* value of the keyword. Value 1. */ 1168 #define IDENTIFIER_KEYWORD_P(NODE) \ 1169 ((!IDENTIFIER_KIND_BIT_2 (NODE)) \ 1170 & (!IDENTIFIER_KIND_BIT_1 (NODE)) \ 1171 & IDENTIFIER_KIND_BIT_0 (NODE)) 1172 1173 /* True if this identifier is the name of a constructor or 1174 destructor. Value 2 or 3. */ 1175 #define IDENTIFIER_CDTOR_P(NODE) \ 1176 ((!IDENTIFIER_KIND_BIT_2 (NODE)) \ 1177 & IDENTIFIER_KIND_BIT_1 (NODE)) 1178 1179 /* True if this identifier is the name of a constructor. Value 2. */ 1180 #define IDENTIFIER_CTOR_P(NODE) \ 1181 (IDENTIFIER_CDTOR_P(NODE) \ 1182 & (!IDENTIFIER_KIND_BIT_0 (NODE))) 1183 1184 /* True if this identifier is the name of a destructor. Value 3. */ 1185 #define IDENTIFIER_DTOR_P(NODE) \ 1186 (IDENTIFIER_CDTOR_P(NODE) \ 1187 & IDENTIFIER_KIND_BIT_0 (NODE)) 1188 1189 /* True if this identifier is for any operator name (including 1190 conversions). Value 4, 5, 6 or 7. */ 1191 #define IDENTIFIER_ANY_OP_P(NODE) \ 1192 (IDENTIFIER_KIND_BIT_2 (NODE)) 1193 1194 /* True if this identifier is for an overloaded operator. Values 4, 5. */ 1195 #define IDENTIFIER_OVL_OP_P(NODE) \ 1196 (IDENTIFIER_ANY_OP_P (NODE) \ 1197 & (!IDENTIFIER_KIND_BIT_1 (NODE))) 1198 1199 /* True if this identifier is for any assignment. Values 5. */ 1200 #define IDENTIFIER_ASSIGN_OP_P(NODE) \ 1201 (IDENTIFIER_OVL_OP_P (NODE) \ 1202 & IDENTIFIER_KIND_BIT_0 (NODE)) 1203 1204 /* True if this identifier is the name of a type-conversion 1205 operator. Value 7. */ 1206 #define IDENTIFIER_CONV_OP_P(NODE) \ 1207 (IDENTIFIER_ANY_OP_P (NODE) \ 1208 & IDENTIFIER_KIND_BIT_1 (NODE) \ 1209 & (!IDENTIFIER_KIND_BIT_0 (NODE))) 1210 1211 /* True if this identifier is a new or delete operator. */ 1212 #define IDENTIFIER_NEWDEL_OP_P(NODE) \ 1213 (IDENTIFIER_OVL_OP_P (NODE) \ 1214 && IDENTIFIER_OVL_OP_FLAGS (NODE) & OVL_OP_FLAG_ALLOC) 1215 1216 /* True if this identifier is a new operator. */ 1217 #define IDENTIFIER_NEW_OP_P(NODE) \ 1218 (IDENTIFIER_OVL_OP_P (NODE) \ 1219 && (IDENTIFIER_OVL_OP_FLAGS (NODE) \ 1220 & (OVL_OP_FLAG_ALLOC | OVL_OP_FLAG_DELETE)) == OVL_OP_FLAG_ALLOC) 1221 1222 /* Access a C++-specific index for identifier NODE. 1223 Used to optimize operator mappings etc. */ 1224 #define IDENTIFIER_CP_INDEX(NODE) \ 1225 (IDENTIFIER_NODE_CHECK(NODE)->base.u.bits.address_space) 1226 1227 /* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */ 1228 #define C_TYPE_FIELDS_READONLY(TYPE) \ 1229 (LANG_TYPE_CLASS_CHECK (TYPE)->fields_readonly) 1230 1231 /* The tokens stored in the unparsed operand. */ 1232 1233 #define DEFPARSE_TOKENS(NODE) \ 1234 (((struct tree_deferred_parse *)DEFERRED_PARSE_CHECK (NODE))->tokens) 1235 #define DEFPARSE_INSTANTIATIONS(NODE) \ 1236 (((struct tree_deferred_parse *)DEFERRED_PARSE_CHECK (NODE))->instantiations) 1237 1238 struct GTY (()) tree_deferred_parse { 1239 struct tree_base base; 1240 struct cp_token_cache *tokens; 1241 vec<tree, va_gc> *instantiations; 1242 }; 1243 1244 1245 #define DEFERRED_NOEXCEPT_PATTERN(NODE) \ 1246 (((struct tree_deferred_noexcept *)DEFERRED_NOEXCEPT_CHECK (NODE))->pattern) 1247 #define DEFERRED_NOEXCEPT_ARGS(NODE) \ 1248 (((struct tree_deferred_noexcept *)DEFERRED_NOEXCEPT_CHECK (NODE))->args) 1249 #define DEFERRED_NOEXCEPT_SPEC_P(NODE) \ 1250 ((NODE) && (TREE_PURPOSE (NODE)) \ 1251 && (TREE_CODE (TREE_PURPOSE (NODE)) == DEFERRED_NOEXCEPT)) 1252 #define UNEVALUATED_NOEXCEPT_SPEC_P(NODE) \ 1253 (DEFERRED_NOEXCEPT_SPEC_P (NODE) \ 1254 && DEFERRED_NOEXCEPT_PATTERN (TREE_PURPOSE (NODE)) == NULL_TREE) 1255 #define UNPARSED_NOEXCEPT_SPEC_P(NODE) \ 1256 ((NODE) && (TREE_PURPOSE (NODE)) \ 1257 && (TREE_CODE (TREE_PURPOSE (NODE)) == DEFERRED_PARSE)) 1258 1259 struct GTY (()) tree_deferred_noexcept { 1260 struct tree_base base; 1261 tree pattern; 1262 tree args; 1263 }; 1264 1265 1266 /* The condition associated with the static assertion. This must be 1267 an integral constant expression. */ 1268 #define STATIC_ASSERT_CONDITION(NODE) \ 1269 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->condition) 1270 1271 /* The message associated with the static assertion. This must be a 1272 string constant, which will be emitted as an error message when the 1273 static assert condition is false. */ 1274 #define STATIC_ASSERT_MESSAGE(NODE) \ 1275 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->message) 1276 1277 /* Source location information for a static assertion. */ 1278 #define STATIC_ASSERT_SOURCE_LOCATION(NODE) \ 1279 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->location) 1280 1281 struct GTY (()) tree_static_assert { 1282 struct tree_common common; 1283 tree condition; 1284 tree message; 1285 location_t location; 1286 }; 1287 1288 struct GTY (()) tree_argument_pack_select { 1289 struct tree_common common; 1290 tree argument_pack; 1291 int index; 1292 }; 1293 1294 /* The different kinds of traits that we encounter. */ 1295 1296 enum cp_trait_kind 1297 { 1298 CPTK_BASES, 1299 CPTK_DIRECT_BASES, 1300 CPTK_HAS_NOTHROW_ASSIGN, 1301 CPTK_HAS_NOTHROW_CONSTRUCTOR, 1302 CPTK_HAS_NOTHROW_COPY, 1303 CPTK_HAS_TRIVIAL_ASSIGN, 1304 CPTK_HAS_TRIVIAL_CONSTRUCTOR, 1305 CPTK_HAS_TRIVIAL_COPY, 1306 CPTK_HAS_TRIVIAL_DESTRUCTOR, 1307 CPTK_HAS_UNIQUE_OBJ_REPRESENTATIONS, 1308 CPTK_HAS_VIRTUAL_DESTRUCTOR, 1309 CPTK_IS_ABSTRACT, 1310 CPTK_IS_AGGREGATE, 1311 CPTK_IS_BASE_OF, 1312 CPTK_IS_CLASS, 1313 CPTK_IS_EMPTY, 1314 CPTK_IS_ENUM, 1315 CPTK_IS_FINAL, 1316 CPTK_IS_LITERAL_TYPE, 1317 CPTK_IS_POD, 1318 CPTK_IS_POLYMORPHIC, 1319 CPTK_IS_SAME_AS, 1320 CPTK_IS_STD_LAYOUT, 1321 CPTK_IS_TRIVIAL, 1322 CPTK_IS_TRIVIALLY_ASSIGNABLE, 1323 CPTK_IS_TRIVIALLY_CONSTRUCTIBLE, 1324 CPTK_IS_TRIVIALLY_COPYABLE, 1325 CPTK_IS_UNION, 1326 CPTK_UNDERLYING_TYPE, 1327 CPTK_IS_ASSIGNABLE, 1328 CPTK_IS_CONSTRUCTIBLE 1329 }; 1330 1331 /* The types that we are processing. */ 1332 #define TRAIT_EXPR_TYPE1(NODE) \ 1333 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type1) 1334 1335 #define TRAIT_EXPR_TYPE2(NODE) \ 1336 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type2) 1337 1338 /* The specific trait that we are processing. */ 1339 #define TRAIT_EXPR_KIND(NODE) \ 1340 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->kind) 1341 1342 #define TRAIT_EXPR_LOCATION(NODE) \ 1343 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->locus) 1344 1345 struct GTY (()) tree_trait_expr { 1346 struct tree_common common; 1347 tree type1; 1348 tree type2; 1349 location_t locus; 1350 enum cp_trait_kind kind; 1351 }; 1352 1353 /* Identifiers used for lambda types are almost anonymous. Use this 1354 spare flag to distinguish them (they also have the anonymous flag). */ 1355 #define IDENTIFIER_LAMBDA_P(NODE) \ 1356 (IDENTIFIER_NODE_CHECK(NODE)->base.protected_flag) 1357 1358 /* Based off of TYPE_UNNAMED_P. */ 1359 #define LAMBDA_TYPE_P(NODE) \ 1360 (TREE_CODE (NODE) == RECORD_TYPE \ 1361 && TYPE_LINKAGE_IDENTIFIER (NODE) \ 1362 && IDENTIFIER_LAMBDA_P (TYPE_LINKAGE_IDENTIFIER (NODE))) 1363 1364 /* Test if FUNCTION_DECL is a lambda function. */ 1365 #define LAMBDA_FUNCTION_P(FNDECL) \ 1366 (DECL_DECLARES_FUNCTION_P (FNDECL) \ 1367 && DECL_OVERLOADED_OPERATOR_P (FNDECL) \ 1368 && DECL_OVERLOADED_OPERATOR_IS (FNDECL, CALL_EXPR) \ 1369 && LAMBDA_TYPE_P (CP_DECL_CONTEXT (FNDECL))) 1370 1371 enum cp_lambda_default_capture_mode_type { 1372 CPLD_NONE, 1373 CPLD_COPY, 1374 CPLD_REFERENCE 1375 }; 1376 1377 /* The method of default capture, if any. */ 1378 #define LAMBDA_EXPR_DEFAULT_CAPTURE_MODE(NODE) \ 1379 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->default_capture_mode) 1380 1381 /* The capture-list, including `this'. Each capture is stored as a FIELD_DECL 1382 * so that the name, type, and field are all together, whether or not it has 1383 * been added to the lambda's class type. 1384 TREE_LIST: 1385 TREE_PURPOSE: The FIELD_DECL for this capture. 1386 TREE_VALUE: The initializer. This is part of a GNU extension. */ 1387 #define LAMBDA_EXPR_CAPTURE_LIST(NODE) \ 1388 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->capture_list) 1389 1390 /* During parsing of the lambda-introducer, the node in the capture-list 1391 that holds the 'this' capture. During parsing of the body, the 1392 capture proxy for that node. */ 1393 #define LAMBDA_EXPR_THIS_CAPTURE(NODE) \ 1394 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->this_capture) 1395 1396 /* Predicate tracking whether `this' is in the effective capture set. */ 1397 #define LAMBDA_EXPR_CAPTURES_THIS_P(NODE) \ 1398 LAMBDA_EXPR_THIS_CAPTURE(NODE) 1399 1400 /* Predicate tracking whether the lambda was declared 'mutable'. */ 1401 #define LAMBDA_EXPR_MUTABLE_P(NODE) \ 1402 TREE_LANG_FLAG_1 (LAMBDA_EXPR_CHECK (NODE)) 1403 1404 /* True iff uses of a const variable capture were optimized away. */ 1405 #define LAMBDA_EXPR_CAPTURE_OPTIMIZED(NODE) \ 1406 TREE_LANG_FLAG_2 (LAMBDA_EXPR_CHECK (NODE)) 1407 1408 /* True iff this LAMBDA_EXPR was generated in tsubst_lambda_expr. */ 1409 #define LAMBDA_EXPR_INSTANTIATED(NODE) \ 1410 TREE_LANG_FLAG_3 (LAMBDA_EXPR_CHECK (NODE)) 1411 1412 /* True if this TREE_LIST in LAMBDA_EXPR_CAPTURE_LIST is for an explicit 1413 capture. */ 1414 #define LAMBDA_CAPTURE_EXPLICIT_P(NODE) \ 1415 TREE_LANG_FLAG_0 (TREE_LIST_CHECK (NODE)) 1416 1417 /* The source location of the lambda. */ 1418 #define LAMBDA_EXPR_LOCATION(NODE) \ 1419 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->locus) 1420 1421 /* The mangling scope for the lambda: FUNCTION_DECL, PARM_DECL, VAR_DECL, 1422 FIELD_DECL or NULL_TREE. If this is NULL_TREE, we have no linkage. */ 1423 #define LAMBDA_EXPR_EXTRA_SCOPE(NODE) \ 1424 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->extra_scope) 1425 1426 /* If EXTRA_SCOPE, this is the number of the lambda within that scope. */ 1427 #define LAMBDA_EXPR_DISCRIMINATOR(NODE) \ 1428 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->discriminator) 1429 1430 /* During parsing of the lambda, a vector of capture proxies which need 1431 to be pushed once we're done processing a nested lambda. */ 1432 #define LAMBDA_EXPR_PENDING_PROXIES(NODE) \ 1433 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->pending_proxies) 1434 1435 /* The closure type of the lambda, which is also the type of the 1436 LAMBDA_EXPR. */ 1437 #define LAMBDA_EXPR_CLOSURE(NODE) \ 1438 (TREE_TYPE (LAMBDA_EXPR_CHECK (NODE))) 1439 1440 struct GTY (()) tree_lambda_expr 1441 { 1442 struct tree_typed typed; 1443 tree capture_list; 1444 tree this_capture; 1445 tree extra_scope; 1446 vec<tree, va_gc> *pending_proxies; 1447 location_t locus; 1448 enum cp_lambda_default_capture_mode_type default_capture_mode; 1449 int discriminator; 1450 }; 1451 1452 /* A (typedef,context,usage location) triplet. 1453 It represents a typedef used through a 1454 context at a given source location. 1455 e.g. 1456 struct foo { 1457 typedef int myint; 1458 }; 1459 1460 struct bar { 1461 foo::myint v; // #1<-- this location. 1462 }; 1463 1464 In bar, the triplet will be (myint, foo, #1). 1465 */ 1466 struct GTY(()) qualified_typedef_usage_s { 1467 tree typedef_decl; 1468 tree context; 1469 location_t locus; 1470 }; 1471 typedef struct qualified_typedef_usage_s qualified_typedef_usage_t; 1472 1473 /* Non-zero if this template specialization has access violations that 1474 should be rechecked when the function is instantiated outside argument 1475 deduction. */ 1476 #define TINFO_HAS_ACCESS_ERRORS(NODE) \ 1477 (TREE_LANG_FLAG_0 (TEMPLATE_INFO_CHECK (NODE))) 1478 #define FNDECL_HAS_ACCESS_ERRORS(NODE) \ 1479 (TINFO_HAS_ACCESS_ERRORS (DECL_TEMPLATE_INFO (NODE))) 1480 1481 /* Non-zero if this variable template specialization was specified using a 1482 template-id, so it's a partial or full specialization and not a definition 1483 of the member template of a particular class specialization. */ 1484 #define TINFO_USED_TEMPLATE_ID(NODE) \ 1485 (TREE_LANG_FLAG_1 (TEMPLATE_INFO_CHECK (NODE))) 1486 1487 /* Non-zero if this variable template specialization was declared with the 1488 `constinit' specifier. */ 1489 #define TINFO_VAR_DECLARED_CONSTINIT(NODE) \ 1490 (TREE_LANG_FLAG_2 (TEMPLATE_INFO_CHECK (NODE))) 1491 1492 struct GTY(()) tree_template_info { 1493 struct tree_base base; 1494 tree tmpl; 1495 tree args; 1496 vec<qualified_typedef_usage_t, va_gc> *typedefs_needing_access_checking; 1497 }; 1498 1499 // Constraint information for a C++ declaration. Constraint information is 1500 // comprised of: 1501 // 1502 // - a constraint expression introduced by the template header 1503 // - a constraint expression introduced by a function declarator 1504 // - the associated constraints, which are the conjunction of those, 1505 // and used for declaration matching 1506 // 1507 // The template and declarator requirements are kept to support pretty 1508 // printing constrained declarations. 1509 struct GTY(()) tree_constraint_info { 1510 struct tree_base base; 1511 tree template_reqs; 1512 tree declarator_reqs; 1513 tree associated_constr; 1514 }; 1515 1516 // Require that pointer P is non-null before returning. 1517 template<typename T> 1518 inline T* 1519 check_nonnull (T* p) 1520 { 1521 gcc_assert (p); 1522 return p; 1523 } 1524 1525 /* Returns true iff T is non-null and represents constraint info. */ 1526 inline tree_constraint_info * 1527 check_constraint_info (tree t) 1528 { 1529 if (t && TREE_CODE (t) == CONSTRAINT_INFO) 1530 return (tree_constraint_info *)t; 1531 return NULL; 1532 } 1533 1534 /* Access the expression describing the template constraints. This may be 1535 null if no constraints were introduced in the template parameter list, 1536 a requirements clause after the template parameter list, or constraints 1537 through a constrained-type-specifier. */ 1538 #define CI_TEMPLATE_REQS(NODE) \ 1539 check_constraint_info (check_nonnull (NODE))->template_reqs 1540 1541 /* Access the expression describing the trailing constraints. This is non-null 1542 for any implicit instantiation of a constrained declaration. For a 1543 templated declaration it is non-null only when a trailing requires-clause 1544 was specified. */ 1545 #define CI_DECLARATOR_REQS(NODE) \ 1546 check_constraint_info (check_nonnull (NODE))->declarator_reqs 1547 1548 /* The computed associated constraint expression for a declaration. */ 1549 #define CI_ASSOCIATED_CONSTRAINTS(NODE) \ 1550 check_constraint_info (check_nonnull (NODE))->associated_constr 1551 1552 /* Access the constraint-expression introduced by the requires-clause 1553 associate the template parameter list NODE. */ 1554 #define TEMPLATE_PARMS_CONSTRAINTS(NODE) \ 1555 TREE_TYPE (TREE_LIST_CHECK (NODE)) 1556 1557 /* Access the logical constraints on the template parameter declaration 1558 indicated by NODE. */ 1559 #define TEMPLATE_PARM_CONSTRAINTS(NODE) \ 1560 TREE_TYPE (TREE_LIST_CHECK (NODE)) 1561 1562 /* Non-zero if the noexcept is present in a compound requirement. */ 1563 #define COMPOUND_REQ_NOEXCEPT_P(NODE) \ 1564 TREE_LANG_FLAG_0 (TREE_CHECK (NODE, COMPOUND_REQ)) 1565 1566 /* The constraints on an 'auto' placeholder type, used in an argument deduction 1567 constraint. */ 1568 #define PLACEHOLDER_TYPE_CONSTRAINTS(NODE) \ 1569 DECL_SIZE_UNIT (TYPE_NAME (NODE)) 1570 1571 /* True if NODE is a constraint. */ 1572 #define CONSTR_P(NODE) \ 1573 (TREE_CODE (NODE) == ATOMIC_CONSTR \ 1574 || TREE_CODE (NODE) == CONJ_CONSTR \ 1575 || TREE_CODE (NODE) == DISJ_CONSTR) 1576 1577 /* Valid for any normalized constraint. */ 1578 #define CONSTR_CHECK(NODE) \ 1579 TREE_CHECK3 (NODE, ATOMIC_CONSTR, CONJ_CONSTR, DISJ_CONSTR) 1580 1581 /* The CONSTR_INFO stores normalization data for a constraint. It refers to 1582 the original expression and the expression or declaration 1583 from which the constraint was normalized. 1584 1585 This is TREE_LIST whose TREE_PURPOSE is the original expression and whose 1586 TREE_VALUE is a list of contexts. */ 1587 #define CONSTR_INFO(NODE) \ 1588 TREE_TYPE (CONSTR_CHECK (NODE)) 1589 1590 /* The expression evaluated by the constraint. */ 1591 #define CONSTR_EXPR(NODE) \ 1592 TREE_PURPOSE (CONSTR_INFO (NODE)) 1593 1594 /* The expression or declaration from which this constraint was normalized. 1595 This is a TREE_LIST whose TREE_VALUE is either a template-id expression 1596 denoting a concept check or the declaration introducing the constraint. 1597 These are chained to other context objects. */ 1598 #define CONSTR_CONTEXT(NODE) \ 1599 TREE_VALUE (CONSTR_INFO (NODE)) 1600 1601 /* The parameter mapping for an atomic constraint. */ 1602 #define ATOMIC_CONSTR_MAP(NODE) \ 1603 TREE_OPERAND (TREE_CHECK (NODE, ATOMIC_CONSTR), 0) 1604 1605 /* The expression of an atomic constraint. */ 1606 #define ATOMIC_CONSTR_EXPR(NODE) \ 1607 CONSTR_EXPR (ATOMIC_CONSTR_CHECK (NODE)) 1608 1609 /* The concept of a concept check. */ 1610 #define CHECK_CONSTR_CONCEPT(NODE) \ 1611 TREE_OPERAND (TREE_CHECK (NODE, CHECK_CONSTR), 0) 1612 1613 /* The template arguments of a concept check. */ 1614 #define CHECK_CONSTR_ARGS(NODE) \ 1615 TREE_OPERAND (TREE_CHECK (NODE, CHECK_CONSTR), 1) 1616 1617 /* Whether a PARM_DECL represents a local parameter in a 1618 requires-expression. */ 1619 #define CONSTRAINT_VAR_P(NODE) \ 1620 DECL_LANG_FLAG_2 (TREE_CHECK (NODE, PARM_DECL)) 1621 1622 /* The concept constraining this constrained template-parameter. */ 1623 #define CONSTRAINED_PARM_CONCEPT(NODE) \ 1624 DECL_SIZE_UNIT (TYPE_DECL_CHECK (NODE)) 1625 /* Any extra template arguments specified for a constrained 1626 template-parameter. */ 1627 #define CONSTRAINED_PARM_EXTRA_ARGS(NODE) \ 1628 DECL_SIZE (TYPE_DECL_CHECK (NODE)) 1629 /* The first template parameter of CONSTRAINED_PARM_CONCEPT to be used as a 1630 prototype for the constrained parameter in finish_shorthand_constraint, 1631 attached for convenience. */ 1632 #define CONSTRAINED_PARM_PROTOTYPE(NODE) \ 1633 DECL_INITIAL (TYPE_DECL_CHECK (NODE)) 1634 1635 enum cp_tree_node_structure_enum { 1636 TS_CP_GENERIC, 1637 TS_CP_IDENTIFIER, 1638 TS_CP_TPI, 1639 TS_CP_PTRMEM, 1640 TS_CP_OVERLOAD, 1641 TS_CP_BASELINK, 1642 TS_CP_TEMPLATE_DECL, 1643 TS_CP_DEFERRED_PARSE, 1644 TS_CP_DEFERRED_NOEXCEPT, 1645 TS_CP_STATIC_ASSERT, 1646 TS_CP_ARGUMENT_PACK_SELECT, 1647 TS_CP_TRAIT_EXPR, 1648 TS_CP_LAMBDA_EXPR, 1649 TS_CP_TEMPLATE_INFO, 1650 TS_CP_CONSTRAINT_INFO, 1651 TS_CP_USERDEF_LITERAL 1652 }; 1653 1654 /* The resulting tree type. */ 1655 union GTY((desc ("cp_tree_node_structure (&%h)"), 1656 chain_next ("(union lang_tree_node *) c_tree_chain_next (&%h.generic)"))) lang_tree_node { 1657 union tree_node GTY ((tag ("TS_CP_GENERIC"), 1658 desc ("tree_node_structure (&%h)"))) generic; 1659 struct template_parm_index GTY ((tag ("TS_CP_TPI"))) tpi; 1660 struct ptrmem_cst GTY ((tag ("TS_CP_PTRMEM"))) ptrmem; 1661 struct tree_overload GTY ((tag ("TS_CP_OVERLOAD"))) overload; 1662 struct tree_baselink GTY ((tag ("TS_CP_BASELINK"))) baselink; 1663 struct tree_template_decl GTY ((tag ("TS_CP_TEMPLATE_DECL"))) template_decl; 1664 struct tree_deferred_parse GTY ((tag ("TS_CP_DEFERRED_PARSE"))) deferred_parse; 1665 struct tree_deferred_noexcept GTY ((tag ("TS_CP_DEFERRED_NOEXCEPT"))) deferred_noexcept; 1666 struct lang_identifier GTY ((tag ("TS_CP_IDENTIFIER"))) identifier; 1667 struct tree_static_assert GTY ((tag ("TS_CP_STATIC_ASSERT"))) 1668 static_assertion; 1669 struct tree_argument_pack_select GTY ((tag ("TS_CP_ARGUMENT_PACK_SELECT"))) 1670 argument_pack_select; 1671 struct tree_trait_expr GTY ((tag ("TS_CP_TRAIT_EXPR"))) 1672 trait_expression; 1673 struct tree_lambda_expr GTY ((tag ("TS_CP_LAMBDA_EXPR"))) 1674 lambda_expression; 1675 struct tree_template_info GTY ((tag ("TS_CP_TEMPLATE_INFO"))) 1676 template_info; 1677 struct tree_constraint_info GTY ((tag ("TS_CP_CONSTRAINT_INFO"))) 1678 constraint_info; 1679 struct tree_userdef_literal GTY ((tag ("TS_CP_USERDEF_LITERAL"))) 1680 userdef_literal; 1681 }; 1682 1683 1684 /* Global state. */ 1685 1686 struct GTY(()) saved_scope { 1687 vec<cxx_saved_binding, va_gc> *old_bindings; 1688 tree old_namespace; 1689 vec<tree, va_gc> *decl_ns_list; 1690 tree class_name; 1691 tree class_type; 1692 tree access_specifier; 1693 tree function_decl; 1694 vec<tree, va_gc> *lang_base; 1695 tree lang_name; 1696 tree template_parms; 1697 cp_binding_level *x_previous_class_level; 1698 tree x_saved_tree; 1699 1700 /* Only used for uses of this in trailing return type. */ 1701 tree x_current_class_ptr; 1702 tree x_current_class_ref; 1703 1704 int x_processing_template_decl; 1705 int x_processing_specialization; 1706 int x_processing_constraint; 1707 int suppress_location_wrappers; 1708 BOOL_BITFIELD x_processing_explicit_instantiation : 1; 1709 BOOL_BITFIELD need_pop_function_context : 1; 1710 1711 /* Nonzero if we are parsing the discarded statement of a constexpr 1712 if-statement. */ 1713 BOOL_BITFIELD discarded_stmt : 1; 1714 1715 int unevaluated_operand; 1716 int inhibit_evaluation_warnings; 1717 int noexcept_operand; 1718 /* If non-zero, implicit "omp declare target" attribute is added into the 1719 attribute lists. */ 1720 int omp_declare_target_attribute; 1721 int ref_temp_count; 1722 1723 struct stmt_tree_s x_stmt_tree; 1724 1725 cp_binding_level *class_bindings; 1726 cp_binding_level *bindings; 1727 1728 hash_map<tree, tree> *GTY((skip)) x_local_specializations; 1729 1730 struct saved_scope *prev; 1731 }; 1732 1733 extern GTY(()) struct saved_scope *scope_chain; 1734 1735 /* The current open namespace. */ 1736 1737 #define current_namespace scope_chain->old_namespace 1738 1739 /* The stack for namespaces of current declarations. */ 1740 1741 #define decl_namespace_list scope_chain->decl_ns_list 1742 1743 /* IDENTIFIER_NODE: name of current class */ 1744 1745 #define current_class_name scope_chain->class_name 1746 1747 /* _TYPE: the type of the current class */ 1748 1749 #define current_class_type scope_chain->class_type 1750 1751 /* When parsing a class definition, the access specifier most recently 1752 given by the user, or, if no access specifier was given, the 1753 default value appropriate for the kind of class (i.e., struct, 1754 class, or union). */ 1755 1756 #define current_access_specifier scope_chain->access_specifier 1757 1758 /* Pointer to the top of the language name stack. */ 1759 1760 #define current_lang_base scope_chain->lang_base 1761 #define current_lang_name scope_chain->lang_name 1762 1763 /* When parsing a template declaration, a TREE_LIST represents the 1764 active template parameters. Each node in the list represents one 1765 level of template parameters. The innermost level is first in the 1766 list. The depth of each level is stored as an INTEGER_CST in the 1767 TREE_PURPOSE of each node. The parameters for that level are 1768 stored in the TREE_VALUE. */ 1769 1770 #define current_template_parms scope_chain->template_parms 1771 1772 #define processing_template_decl scope_chain->x_processing_template_decl 1773 #define processing_specialization scope_chain->x_processing_specialization 1774 #define processing_explicit_instantiation scope_chain->x_processing_explicit_instantiation 1775 1776 #define in_discarded_stmt scope_chain->discarded_stmt 1777 1778 #define current_ref_temp_count scope_chain->ref_temp_count 1779 1780 /* RAII sentinel to handle clearing processing_template_decl and restoring 1781 it when done. */ 1782 1783 class processing_template_decl_sentinel 1784 { 1785 public: 1786 int saved; 1787 processing_template_decl_sentinel (bool reset = true) 1788 : saved (processing_template_decl) 1789 { 1790 if (reset) 1791 processing_template_decl = 0; 1792 } 1793 ~processing_template_decl_sentinel() 1794 { 1795 processing_template_decl = saved; 1796 } 1797 }; 1798 1799 /* RAII sentinel to disable certain warnings during template substitution 1800 and elsewhere. */ 1801 1802 class warning_sentinel 1803 { 1804 public: 1805 int &flag; 1806 int val; 1807 warning_sentinel(int& flag, bool suppress=true) 1808 : flag(flag), val(flag) { if (suppress) flag = 0; } 1809 ~warning_sentinel() { flag = val; } 1810 }; 1811 1812 /* RAII sentinel to temporarily override input_location. This will not set 1813 input_location to UNKNOWN_LOCATION or BUILTINS_LOCATION. */ 1814 1815 class iloc_sentinel 1816 { 1817 location_t saved_loc; 1818 public: 1819 iloc_sentinel (location_t loc): saved_loc (input_location) 1820 { 1821 if (loc >= RESERVED_LOCATION_COUNT) 1822 input_location = loc; 1823 } 1824 ~iloc_sentinel () 1825 { 1826 input_location = saved_loc; 1827 } 1828 }; 1829 1830 /* RAII sentinel that saves the value of a variable, optionally 1831 overrides it right away, and restores its value when the sentinel 1832 id destructed. */ 1833 1834 template <typename T> 1835 class temp_override 1836 { 1837 T& overridden_variable; 1838 T saved_value; 1839 public: 1840 temp_override(T& var) : overridden_variable (var), saved_value (var) {} 1841 temp_override(T& var, T overrider) 1842 : overridden_variable (var), saved_value (var) 1843 { 1844 overridden_variable = overrider; 1845 } 1846 ~temp_override() { overridden_variable = saved_value; } 1847 }; 1848 1849 /* The cached class binding level, from the most recently exited 1850 class, or NULL if none. */ 1851 1852 #define previous_class_level scope_chain->x_previous_class_level 1853 1854 /* A map from local variable declarations in the body of the template 1855 presently being instantiated to the corresponding instantiated 1856 local variables. */ 1857 1858 #define local_specializations scope_chain->x_local_specializations 1859 1860 /* Nonzero if we are parsing the operand of a noexcept operator. */ 1861 1862 #define cp_noexcept_operand scope_chain->noexcept_operand 1863 1864 /* A list of private types mentioned, for deferred access checking. */ 1865 1866 struct GTY((for_user)) cxx_int_tree_map { 1867 unsigned int uid; 1868 tree to; 1869 }; 1870 1871 struct cxx_int_tree_map_hasher : ggc_ptr_hash<cxx_int_tree_map> 1872 { 1873 static hashval_t hash (cxx_int_tree_map *); 1874 static bool equal (cxx_int_tree_map *, cxx_int_tree_map *); 1875 }; 1876 1877 struct named_label_entry; /* Defined in decl.c. */ 1878 1879 struct named_label_hash : ggc_remove <named_label_entry *> 1880 { 1881 typedef named_label_entry *value_type; 1882 typedef tree compare_type; /* An identifier. */ 1883 1884 inline static hashval_t hash (value_type); 1885 inline static bool equal (const value_type, compare_type); 1886 1887 static const bool empty_zero_p = true; 1888 inline static void mark_empty (value_type &p) {p = NULL;} 1889 inline static bool is_empty (value_type p) {return !p;} 1890 1891 /* Nothing is deletable. Everything is insertable. */ 1892 inline static bool is_deleted (value_type) { return false; } 1893 inline static void mark_deleted (value_type) { gcc_unreachable (); } 1894 }; 1895 1896 /* Global state pertinent to the current function. */ 1897 1898 struct GTY(()) language_function { 1899 struct c_language_function base; 1900 1901 tree x_cdtor_label; 1902 tree x_current_class_ptr; 1903 tree x_current_class_ref; 1904 tree x_eh_spec_block; 1905 tree x_in_charge_parm; 1906 tree x_vtt_parm; 1907 tree x_return_value; 1908 1909 BOOL_BITFIELD returns_value : 1; 1910 BOOL_BITFIELD returns_null : 1; 1911 BOOL_BITFIELD returns_abnormally : 1; 1912 BOOL_BITFIELD infinite_loop: 1; 1913 BOOL_BITFIELD x_in_function_try_handler : 1; 1914 BOOL_BITFIELD x_in_base_initializer : 1; 1915 1916 /* True if this function can throw an exception. */ 1917 BOOL_BITFIELD can_throw : 1; 1918 1919 BOOL_BITFIELD invalid_constexpr : 1; 1920 BOOL_BITFIELD throwing_cleanup : 1; 1921 1922 hash_table<named_label_hash> *x_named_labels; 1923 1924 cp_binding_level *bindings; 1925 1926 /* Tracking possibly infinite loops. This is a vec<tree> only because 1927 vec<bool> doesn't work with gtype. */ 1928 vec<tree, va_gc> *infinite_loops; 1929 hash_table<cxx_int_tree_map_hasher> *extern_decl_map; 1930 }; 1931 1932 /* The current C++-specific per-function global variables. */ 1933 1934 #define cp_function_chain (cfun->language) 1935 1936 /* In a constructor destructor, the point at which all derived class 1937 destroying/construction has been done. I.e., just before a 1938 constructor returns, or before any base class destroying will be done 1939 in a destructor. */ 1940 1941 #define cdtor_label cp_function_chain->x_cdtor_label 1942 1943 /* When we're processing a member function, current_class_ptr is the 1944 PARM_DECL for the `this' pointer. The current_class_ref is an 1945 expression for `*this'. */ 1946 1947 #define current_class_ptr \ 1948 (*(cfun && cp_function_chain \ 1949 ? &cp_function_chain->x_current_class_ptr \ 1950 : &scope_chain->x_current_class_ptr)) 1951 #define current_class_ref \ 1952 (*(cfun && cp_function_chain \ 1953 ? &cp_function_chain->x_current_class_ref \ 1954 : &scope_chain->x_current_class_ref)) 1955 1956 /* The EH_SPEC_BLOCK for the exception-specifiers for the current 1957 function, if any. */ 1958 1959 #define current_eh_spec_block cp_function_chain->x_eh_spec_block 1960 1961 /* The `__in_chrg' parameter for the current function. Only used for 1962 constructors and destructors. */ 1963 1964 #define current_in_charge_parm cp_function_chain->x_in_charge_parm 1965 1966 /* The `__vtt_parm' parameter for the current function. Only used for 1967 constructors and destructors. */ 1968 1969 #define current_vtt_parm cp_function_chain->x_vtt_parm 1970 1971 /* A boolean flag to control whether we need to clean up the return value if a 1972 local destructor throws. Only used in functions that return by value a 1973 class with a destructor. Which 'tors don't, so we can use the same 1974 field as current_vtt_parm. */ 1975 1976 #define current_retval_sentinel current_vtt_parm 1977 1978 /* Set to 0 at beginning of a function definition, set to 1 if 1979 a return statement that specifies a return value is seen. */ 1980 1981 #define current_function_returns_value cp_function_chain->returns_value 1982 1983 /* Set to 0 at beginning of a function definition, set to 1 if 1984 a return statement with no argument is seen. */ 1985 1986 #define current_function_returns_null cp_function_chain->returns_null 1987 1988 /* Set to 0 at beginning of a function definition, set to 1 if 1989 a call to a noreturn function is seen. */ 1990 1991 #define current_function_returns_abnormally \ 1992 cp_function_chain->returns_abnormally 1993 1994 /* Set to 0 at beginning of a function definition, set to 1 if we see an 1995 obvious infinite loop. This can have false positives and false 1996 negatives, so it should only be used as a heuristic. */ 1997 1998 #define current_function_infinite_loop cp_function_chain->infinite_loop 1999 2000 /* Nonzero if we are processing a base initializer. Zero elsewhere. */ 2001 #define in_base_initializer cp_function_chain->x_in_base_initializer 2002 2003 #define in_function_try_handler cp_function_chain->x_in_function_try_handler 2004 2005 /* Expression always returned from function, or error_mark_node 2006 otherwise, for use by the automatic named return value optimization. */ 2007 2008 #define current_function_return_value \ 2009 (cp_function_chain->x_return_value) 2010 2011 /* In parser.c. */ 2012 extern tree cp_literal_operator_id (const char *); 2013 2014 #define NON_ERROR(NODE) ((NODE) == error_mark_node ? NULL_TREE : (NODE)) 2015 2016 /* TRUE if a tree code represents a statement. */ 2017 extern bool statement_code_p[MAX_TREE_CODES]; 2018 2019 #define STATEMENT_CODE_P(CODE) statement_code_p[(int) (CODE)] 2020 2021 enum languages { lang_c, lang_cplusplus }; 2022 2023 /* Macros to make error reporting functions' lives easier. */ 2024 #define TYPE_LINKAGE_IDENTIFIER(NODE) \ 2025 (TYPE_IDENTIFIER (TYPE_MAIN_VARIANT (NODE))) 2026 #define TYPE_NAME_STRING(NODE) (IDENTIFIER_POINTER (TYPE_IDENTIFIER (NODE))) 2027 #define TYPE_NAME_LENGTH(NODE) (IDENTIFIER_LENGTH (TYPE_IDENTIFIER (NODE))) 2028 2029 /* Any kind of anonymous type. */ 2030 #define TYPE_ANON_P(NODE) \ 2031 (TYPE_LINKAGE_IDENTIFIER (NODE) \ 2032 && IDENTIFIER_ANON_P (TYPE_LINKAGE_IDENTIFIER (NODE))) 2033 2034 /* Nonzero if NODE, a TYPE, has no name for linkage purposes. */ 2035 #define TYPE_UNNAMED_P(NODE) \ 2036 (TYPE_ANON_P (NODE) \ 2037 && !IDENTIFIER_LAMBDA_P (TYPE_LINKAGE_IDENTIFIER (NODE))) 2038 2039 /* The _DECL for this _TYPE. */ 2040 #define TYPE_MAIN_DECL(NODE) (TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE))) 2041 2042 /* Nonzero if T is a type that could resolve to any kind of concrete type 2043 at instantiation time. */ 2044 #define WILDCARD_TYPE_P(T) \ 2045 (TREE_CODE (T) == TEMPLATE_TYPE_PARM \ 2046 || TREE_CODE (T) == TYPENAME_TYPE \ 2047 || TREE_CODE (T) == TYPEOF_TYPE \ 2048 || TREE_CODE (T) == BOUND_TEMPLATE_TEMPLATE_PARM \ 2049 || TREE_CODE (T) == DECLTYPE_TYPE) 2050 2051 /* Nonzero if T is a class (or struct or union) type. Also nonzero 2052 for template type parameters, typename types, and instantiated 2053 template template parameters. Keep these checks in ascending code 2054 order. */ 2055 #define MAYBE_CLASS_TYPE_P(T) (WILDCARD_TYPE_P (T) || CLASS_TYPE_P (T)) 2056 2057 /* Set CLASS_TYPE_P for T to VAL. T must be a class, struct, or 2058 union type. */ 2059 #define SET_CLASS_TYPE_P(T, VAL) \ 2060 (TYPE_LANG_FLAG_5 (RECORD_OR_UNION_CHECK (T)) = (VAL)) 2061 2062 /* Nonzero if T is a class type. Zero for template type parameters, 2063 typename types, and so forth. */ 2064 #define CLASS_TYPE_P(T) \ 2065 (RECORD_OR_UNION_CODE_P (TREE_CODE (T)) && TYPE_LANG_FLAG_5 (T)) 2066 2067 /* Nonzero if T is a class type but not an union. */ 2068 #define NON_UNION_CLASS_TYPE_P(T) \ 2069 (TREE_CODE (T) == RECORD_TYPE && TYPE_LANG_FLAG_5 (T)) 2070 2071 /* Keep these checks in ascending code order. */ 2072 #define RECORD_OR_UNION_CODE_P(T) \ 2073 ((T) == RECORD_TYPE || (T) == UNION_TYPE) 2074 #define OVERLOAD_TYPE_P(T) \ 2075 (CLASS_TYPE_P (T) || TREE_CODE (T) == ENUMERAL_TYPE) 2076 2077 /* True if this type is dependent. This predicate is only valid if 2078 TYPE_DEPENDENT_P_VALID is true. */ 2079 #define TYPE_DEPENDENT_P(NODE) TYPE_LANG_FLAG_0 (NODE) 2080 2081 /* True if dependent_type_p has been called for this type, with the 2082 result that TYPE_DEPENDENT_P is valid. */ 2083 #define TYPE_DEPENDENT_P_VALID(NODE) TYPE_LANG_FLAG_6(NODE) 2084 2085 /* Nonzero if this type is const-qualified. */ 2086 #define CP_TYPE_CONST_P(NODE) \ 2087 ((cp_type_quals (NODE) & TYPE_QUAL_CONST) != 0) 2088 2089 /* Nonzero if this type is volatile-qualified. */ 2090 #define CP_TYPE_VOLATILE_P(NODE) \ 2091 ((cp_type_quals (NODE) & TYPE_QUAL_VOLATILE) != 0) 2092 2093 /* Nonzero if this type is restrict-qualified. */ 2094 #define CP_TYPE_RESTRICT_P(NODE) \ 2095 ((cp_type_quals (NODE) & TYPE_QUAL_RESTRICT) != 0) 2096 2097 /* Nonzero if this type is const-qualified, but not 2098 volatile-qualified. Other qualifiers are ignored. This macro is 2099 used to test whether or not it is OK to bind an rvalue to a 2100 reference. */ 2101 #define CP_TYPE_CONST_NON_VOLATILE_P(NODE) \ 2102 ((cp_type_quals (NODE) & (TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE)) \ 2103 == TYPE_QUAL_CONST) 2104 2105 #define FUNCTION_ARG_CHAIN(NODE) \ 2106 TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (NODE))) 2107 2108 /* Given a FUNCTION_DECL, returns the first TREE_LIST out of TYPE_ARG_TYPES 2109 which refers to a user-written parameter. */ 2110 #define FUNCTION_FIRST_USER_PARMTYPE(NODE) \ 2111 skip_artificial_parms_for ((NODE), TYPE_ARG_TYPES (TREE_TYPE (NODE))) 2112 2113 /* Similarly, but for DECL_ARGUMENTS. */ 2114 #define FUNCTION_FIRST_USER_PARM(NODE) \ 2115 skip_artificial_parms_for ((NODE), DECL_ARGUMENTS (NODE)) 2116 2117 /* Nonzero iff TYPE is derived from PARENT. Ignores accessibility and 2118 ambiguity issues. */ 2119 #define DERIVED_FROM_P(PARENT, TYPE) \ 2120 (lookup_base ((TYPE), (PARENT), ba_any, NULL, tf_none) != NULL_TREE) 2121 2122 /* Gives the visibility specification for a class type. */ 2123 #define CLASSTYPE_VISIBILITY(TYPE) \ 2124 DECL_VISIBILITY (TYPE_MAIN_DECL (TYPE)) 2125 #define CLASSTYPE_VISIBILITY_SPECIFIED(TYPE) \ 2126 DECL_VISIBILITY_SPECIFIED (TYPE_MAIN_DECL (TYPE)) 2127 2128 struct GTY (()) tree_pair_s { 2129 tree purpose; 2130 tree value; 2131 }; 2132 typedef tree_pair_s *tree_pair_p; 2133 2134 /* This structure provides additional information above and beyond 2135 what is provide in the ordinary tree_type. In the past, we used it 2136 for the types of class types, template parameters types, typename 2137 types, and so forth. However, there can be many (tens to hundreds 2138 of thousands) of template parameter types in a compilation, and 2139 there's no need for this additional information in that case. 2140 Therefore, we now use this data structure only for class types. 2141 2142 In the past, it was thought that there would be relatively few 2143 class types. However, in the presence of heavy use of templates, 2144 many (i.e., thousands) of classes can easily be generated. 2145 Therefore, we should endeavor to keep the size of this structure to 2146 a minimum. */ 2147 struct GTY(()) lang_type { 2148 unsigned char align; 2149 2150 unsigned has_type_conversion : 1; 2151 unsigned has_copy_ctor : 1; 2152 unsigned has_default_ctor : 1; 2153 unsigned const_needs_init : 1; 2154 unsigned ref_needs_init : 1; 2155 unsigned has_const_copy_assign : 1; 2156 unsigned use_template : 2; 2157 2158 unsigned has_mutable : 1; 2159 unsigned com_interface : 1; 2160 unsigned non_pod_class : 1; 2161 unsigned nearly_empty_p : 1; 2162 unsigned user_align : 1; 2163 unsigned has_copy_assign : 1; 2164 unsigned has_new : 1; 2165 unsigned has_array_new : 1; 2166 2167 unsigned gets_delete : 2; 2168 unsigned interface_only : 1; 2169 unsigned interface_unknown : 1; 2170 unsigned contains_empty_class_p : 1; 2171 unsigned anon_aggr : 1; 2172 unsigned non_zero_init : 1; 2173 unsigned empty_p : 1; 2174 /* 32 bits allocated. */ 2175 2176 unsigned vec_new_uses_cookie : 1; 2177 unsigned declared_class : 1; 2178 unsigned diamond_shaped : 1; 2179 unsigned repeated_base : 1; 2180 unsigned being_defined : 1; 2181 unsigned debug_requested : 1; 2182 unsigned fields_readonly : 1; 2183 unsigned ptrmemfunc_flag : 1; 2184 2185 unsigned lazy_default_ctor : 1; 2186 unsigned lazy_copy_ctor : 1; 2187 unsigned lazy_copy_assign : 1; 2188 unsigned lazy_destructor : 1; 2189 unsigned has_const_copy_ctor : 1; 2190 unsigned has_complex_copy_ctor : 1; 2191 unsigned has_complex_copy_assign : 1; 2192 unsigned non_aggregate : 1; 2193 2194 unsigned has_complex_dflt : 1; 2195 unsigned has_list_ctor : 1; 2196 unsigned non_std_layout : 1; 2197 unsigned is_literal : 1; 2198 unsigned lazy_move_ctor : 1; 2199 unsigned lazy_move_assign : 1; 2200 unsigned has_complex_move_ctor : 1; 2201 unsigned has_complex_move_assign : 1; 2202 2203 unsigned has_constexpr_ctor : 1; 2204 unsigned unique_obj_representations : 1; 2205 unsigned unique_obj_representations_set : 1; 2206 2207 /* When adding a flag here, consider whether or not it ought to 2208 apply to a template instance if it applies to the template. If 2209 so, make sure to copy it in instantiate_class_template! */ 2210 2211 /* There are some bits left to fill out a 32-bit word. Keep track 2212 of this by updating the size of this bitfield whenever you add or 2213 remove a flag. */ 2214 unsigned dummy : 5; 2215 2216 tree primary_base; 2217 vec<tree_pair_s, va_gc> *vcall_indices; 2218 tree vtables; 2219 tree typeinfo_var; 2220 vec<tree, va_gc> *vbases; 2221 binding_table nested_udts; 2222 tree as_base; 2223 vec<tree, va_gc> *pure_virtuals; 2224 tree friend_classes; 2225 vec<tree, va_gc> * GTY((reorder ("resort_type_member_vec"))) members; 2226 tree key_method; 2227 tree decl_list; 2228 tree befriending_classes; 2229 /* In a RECORD_TYPE, information specific to Objective-C++, such 2230 as a list of adopted protocols or a pointer to a corresponding 2231 @interface. See objc/objc-act.h for details. */ 2232 tree objc_info; 2233 /* FIXME reuse another field? */ 2234 tree lambda_expr; 2235 }; 2236 2237 /* We used to have a variant type for lang_type. Keep the name of the 2238 checking accessor for the sole survivor. */ 2239 #define LANG_TYPE_CLASS_CHECK(NODE) (TYPE_LANG_SPECIFIC (NODE)) 2240 2241 /* Nonzero for _CLASSTYPE means that operator delete is defined. */ 2242 #define TYPE_GETS_DELETE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->gets_delete) 2243 #define TYPE_GETS_REG_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 1) 2244 2245 /* Nonzero if `new NODE[x]' should cause the allocation of extra 2246 storage to indicate how many array elements are in use. */ 2247 #define TYPE_VEC_NEW_USES_COOKIE(NODE) \ 2248 (CLASS_TYPE_P (NODE) \ 2249 && LANG_TYPE_CLASS_CHECK (NODE)->vec_new_uses_cookie) 2250 2251 /* Nonzero means that this _CLASSTYPE node defines ways of converting 2252 itself to other types. */ 2253 #define TYPE_HAS_CONVERSION(NODE) \ 2254 (LANG_TYPE_CLASS_CHECK (NODE)->has_type_conversion) 2255 2256 /* Nonzero means that NODE (a class type) has a default constructor -- 2257 but that it has not yet been declared. */ 2258 #define CLASSTYPE_LAZY_DEFAULT_CTOR(NODE) \ 2259 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_default_ctor) 2260 2261 /* Nonzero means that NODE (a class type) has a copy constructor -- 2262 but that it has not yet been declared. */ 2263 #define CLASSTYPE_LAZY_COPY_CTOR(NODE) \ 2264 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_ctor) 2265 2266 /* Nonzero means that NODE (a class type) has a move constructor -- 2267 but that it has not yet been declared. */ 2268 #define CLASSTYPE_LAZY_MOVE_CTOR(NODE) \ 2269 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_move_ctor) 2270 2271 /* Nonzero means that NODE (a class type) has an assignment operator 2272 -- but that it has not yet been declared. */ 2273 #define CLASSTYPE_LAZY_COPY_ASSIGN(NODE) \ 2274 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_assign) 2275 2276 /* Nonzero means that NODE (a class type) has an assignment operator 2277 -- but that it has not yet been declared. */ 2278 #define CLASSTYPE_LAZY_MOVE_ASSIGN(NODE) \ 2279 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_move_assign) 2280 2281 /* Nonzero means that NODE (a class type) has a destructor -- but that 2282 it has not yet been declared. */ 2283 #define CLASSTYPE_LAZY_DESTRUCTOR(NODE) \ 2284 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_destructor) 2285 2286 /* Nonzero means that NODE (a class type) is final */ 2287 #define CLASSTYPE_FINAL(NODE) \ 2288 TYPE_FINAL_P (NODE) 2289 2290 2291 /* Nonzero means that this _CLASSTYPE node overloads operator=(X&). */ 2292 #define TYPE_HAS_COPY_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_copy_assign) 2293 2294 /* True iff the class type NODE has an "operator =" whose parameter 2295 has a parameter of type "const X&". */ 2296 #define TYPE_HAS_CONST_COPY_ASSIGN(NODE) \ 2297 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_copy_assign) 2298 2299 /* Nonzero means that this _CLASSTYPE node has an X(X&) constructor. */ 2300 #define TYPE_HAS_COPY_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_copy_ctor) 2301 #define TYPE_HAS_CONST_COPY_CTOR(NODE) \ 2302 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_copy_ctor) 2303 2304 /* Nonzero if this class has an X(initializer_list<T>) constructor. */ 2305 #define TYPE_HAS_LIST_CTOR(NODE) \ 2306 (LANG_TYPE_CLASS_CHECK (NODE)->has_list_ctor) 2307 2308 /* Nonzero if this class has a constexpr constructor other than a copy/move 2309 constructor. Note that a class can have constexpr constructors for 2310 static initialization even if it isn't a literal class. */ 2311 #define TYPE_HAS_CONSTEXPR_CTOR(NODE) \ 2312 (LANG_TYPE_CLASS_CHECK (NODE)->has_constexpr_ctor) 2313 2314 /* Nonzero if this class defines an overloaded operator new. (An 2315 operator new [] doesn't count.) */ 2316 #define TYPE_HAS_NEW_OPERATOR(NODE) \ 2317 (LANG_TYPE_CLASS_CHECK (NODE)->has_new) 2318 2319 /* Nonzero if this class defines an overloaded operator new[]. */ 2320 #define TYPE_HAS_ARRAY_NEW_OPERATOR(NODE) \ 2321 (LANG_TYPE_CLASS_CHECK (NODE)->has_array_new) 2322 2323 /* Nonzero means that this type is being defined. I.e., the left brace 2324 starting the definition of this type has been seen. */ 2325 #define TYPE_BEING_DEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->being_defined) 2326 2327 /* Nonzero means that this type is either complete or being defined, so we 2328 can do lookup in it. */ 2329 #define COMPLETE_OR_OPEN_TYPE_P(NODE) \ 2330 (COMPLETE_TYPE_P (NODE) || (CLASS_TYPE_P (NODE) && TYPE_BEING_DEFINED (NODE))) 2331 2332 /* Mark bits for repeated base checks. */ 2333 #define TYPE_MARKED_P(NODE) TREE_LANG_FLAG_6 (TYPE_CHECK (NODE)) 2334 2335 /* Nonzero if the class NODE has multiple paths to the same (virtual) 2336 base object. */ 2337 #define CLASSTYPE_DIAMOND_SHAPED_P(NODE) \ 2338 (LANG_TYPE_CLASS_CHECK(NODE)->diamond_shaped) 2339 2340 /* Nonzero if the class NODE has multiple instances of the same base 2341 type. */ 2342 #define CLASSTYPE_REPEATED_BASE_P(NODE) \ 2343 (LANG_TYPE_CLASS_CHECK(NODE)->repeated_base) 2344 2345 /* The member function with which the vtable will be emitted: 2346 the first noninline non-pure-virtual member function. NULL_TREE 2347 if there is no key function or if this is a class template */ 2348 #define CLASSTYPE_KEY_METHOD(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->key_method) 2349 2350 /* Vector of members. During definition, it is unordered and only 2351 member functions are present. After completion it is sorted and 2352 contains both member functions and non-functions. STAT_HACK is 2353 involved to preserve oneslot per name invariant. */ 2354 #define CLASSTYPE_MEMBER_VEC(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->members) 2355 2356 /* For class templates, this is a TREE_LIST of all member data, 2357 functions, types, and friends in the order of declaration. 2358 The TREE_PURPOSE of each TREE_LIST is NULL_TREE for a friend, 2359 and the RECORD_TYPE for the class template otherwise. */ 2360 #define CLASSTYPE_DECL_LIST(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->decl_list) 2361 2362 /* A FUNCTION_DECL or OVERLOAD for the constructors for NODE. These 2363 are the constructors that take an in-charge parameter. */ 2364 #define CLASSTYPE_CONSTRUCTORS(NODE) \ 2365 (get_class_binding_direct (NODE, ctor_identifier)) 2366 2367 /* A FUNCTION_DECL for the destructor for NODE. This is the 2368 destructors that take an in-charge parameter. If 2369 CLASSTYPE_LAZY_DESTRUCTOR is true, then this entry will be NULL 2370 until the destructor is created with lazily_declare_fn. */ 2371 #define CLASSTYPE_DESTRUCTOR(NODE) \ 2372 (get_class_binding_direct (NODE, dtor_identifier)) 2373 2374 /* A dictionary of the nested user-defined-types (class-types, or enums) 2375 found within this class. This table includes nested member class 2376 templates. */ 2377 #define CLASSTYPE_NESTED_UTDS(NODE) \ 2378 (LANG_TYPE_CLASS_CHECK (NODE)->nested_udts) 2379 2380 /* Nonzero if NODE has a primary base class, i.e., a base class with 2381 which it shares the virtual function table pointer. */ 2382 #define CLASSTYPE_HAS_PRIMARY_BASE_P(NODE) \ 2383 (CLASSTYPE_PRIMARY_BINFO (NODE) != NULL_TREE) 2384 2385 /* If non-NULL, this is the binfo for the primary base class, i.e., 2386 the base class which contains the virtual function table pointer 2387 for this class. */ 2388 #define CLASSTYPE_PRIMARY_BINFO(NODE) \ 2389 (LANG_TYPE_CLASS_CHECK (NODE)->primary_base) 2390 2391 /* A vector of BINFOs for the direct and indirect virtual base classes 2392 that this type uses in a post-order depth-first left-to-right 2393 order. (In other words, these bases appear in the order that they 2394 should be initialized.) */ 2395 #define CLASSTYPE_VBASECLASSES(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->vbases) 2396 2397 /* The type corresponding to NODE when NODE is used as a base class, 2398 i.e., NODE without virtual base classes or tail padding. */ 2399 #define CLASSTYPE_AS_BASE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->as_base) 2400 2401 /* True iff NODE is the CLASSTYPE_AS_BASE version of some type. */ 2402 #define IS_FAKE_BASE_TYPE(NODE) \ 2403 (TREE_CODE (NODE) == RECORD_TYPE \ 2404 && TYPE_CONTEXT (NODE) && CLASS_TYPE_P (TYPE_CONTEXT (NODE)) \ 2405 && CLASSTYPE_AS_BASE (TYPE_CONTEXT (NODE)) == (NODE)) 2406 2407 /* These are the size and alignment of the type without its virtual 2408 base classes, for when we use this type as a base itself. */ 2409 #define CLASSTYPE_SIZE(NODE) TYPE_SIZE (CLASSTYPE_AS_BASE (NODE)) 2410 #define CLASSTYPE_SIZE_UNIT(NODE) TYPE_SIZE_UNIT (CLASSTYPE_AS_BASE (NODE)) 2411 #define CLASSTYPE_ALIGN(NODE) TYPE_ALIGN (CLASSTYPE_AS_BASE (NODE)) 2412 #define CLASSTYPE_USER_ALIGN(NODE) TYPE_USER_ALIGN (CLASSTYPE_AS_BASE (NODE)) 2413 2414 /* The alignment of NODE, without its virtual bases, in bytes. */ 2415 #define CLASSTYPE_ALIGN_UNIT(NODE) \ 2416 (CLASSTYPE_ALIGN (NODE) / BITS_PER_UNIT) 2417 2418 /* A vec<tree> of virtual functions which cannot be inherited by 2419 derived classes. When deriving from this type, the derived 2420 class must provide its own definition for each of these functions. */ 2421 #define CLASSTYPE_PURE_VIRTUALS(NODE) \ 2422 (LANG_TYPE_CLASS_CHECK (NODE)->pure_virtuals) 2423 2424 /* Nonzero means that this type is an abstract class type. */ 2425 #define ABSTRACT_CLASS_TYPE_P(NODE) \ 2426 (CLASS_TYPE_P (NODE) && CLASSTYPE_PURE_VIRTUALS(NODE)) 2427 2428 /* Nonzero means that this type has an X() constructor. */ 2429 #define TYPE_HAS_DEFAULT_CONSTRUCTOR(NODE) \ 2430 (LANG_TYPE_CLASS_CHECK (NODE)->has_default_ctor) 2431 2432 /* Nonzero means that this type contains a mutable member. */ 2433 #define CLASSTYPE_HAS_MUTABLE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_mutable) 2434 #define TYPE_HAS_MUTABLE_P(NODE) (cp_has_mutable_p (NODE)) 2435 2436 /* Nonzero means that this class type is not POD for the purpose of layout 2437 (as defined in the ABI). This is different from the language's POD. */ 2438 #define CLASSTYPE_NON_LAYOUT_POD_P(NODE) \ 2439 (LANG_TYPE_CLASS_CHECK (NODE)->non_pod_class) 2440 2441 /* Nonzero means that this class type is a non-standard-layout class. */ 2442 #define CLASSTYPE_NON_STD_LAYOUT(NODE) \ 2443 (LANG_TYPE_CLASS_CHECK (NODE)->non_std_layout) 2444 2445 /* Nonzero means that this class type does have unique object 2446 representations. */ 2447 #define CLASSTYPE_UNIQUE_OBJ_REPRESENTATIONS(NODE) \ 2448 (LANG_TYPE_CLASS_CHECK (NODE)->unique_obj_representations) 2449 2450 /* Nonzero means that this class type has 2451 CLASSTYPE_UNIQUE_OBJ_REPRESENTATIONS computed. */ 2452 #define CLASSTYPE_UNIQUE_OBJ_REPRESENTATIONS_SET(NODE) \ 2453 (LANG_TYPE_CLASS_CHECK (NODE)->unique_obj_representations_set) 2454 2455 /* Nonzero means that this class contains pod types whose default 2456 initialization is not a zero initialization (namely, pointers to 2457 data members). */ 2458 #define CLASSTYPE_NON_ZERO_INIT_P(NODE) \ 2459 (LANG_TYPE_CLASS_CHECK (NODE)->non_zero_init) 2460 2461 /* Nonzero if this class is "empty" in the sense of the C++ ABI. */ 2462 #define CLASSTYPE_EMPTY_P(NODE) \ 2463 (LANG_TYPE_CLASS_CHECK (NODE)->empty_p) 2464 2465 /* Nonzero if this class is "nearly empty", i.e., contains only a 2466 virtual function table pointer. */ 2467 #define CLASSTYPE_NEARLY_EMPTY_P(NODE) \ 2468 (LANG_TYPE_CLASS_CHECK (NODE)->nearly_empty_p) 2469 2470 /* Nonzero if this class contains an empty subobject. */ 2471 #define CLASSTYPE_CONTAINS_EMPTY_CLASS_P(NODE) \ 2472 (LANG_TYPE_CLASS_CHECK (NODE)->contains_empty_class_p) 2473 2474 /* A list of class types of which this type is a friend. The 2475 TREE_VALUE is normally a TYPE, but will be a TEMPLATE_DECL in the 2476 case of a template friend. */ 2477 #define CLASSTYPE_FRIEND_CLASSES(NODE) \ 2478 (LANG_TYPE_CLASS_CHECK (NODE)->friend_classes) 2479 2480 /* A list of the classes which grant friendship to this class. */ 2481 #define CLASSTYPE_BEFRIENDING_CLASSES(NODE) \ 2482 (LANG_TYPE_CLASS_CHECK (NODE)->befriending_classes) 2483 2484 /* The associated LAMBDA_EXPR that made this class. */ 2485 #define CLASSTYPE_LAMBDA_EXPR(NODE) \ 2486 (LANG_TYPE_CLASS_CHECK (NODE)->lambda_expr) 2487 /* The extra mangling scope for this closure type. */ 2488 #define LAMBDA_TYPE_EXTRA_SCOPE(NODE) \ 2489 (LAMBDA_EXPR_EXTRA_SCOPE (CLASSTYPE_LAMBDA_EXPR (NODE))) 2490 2491 /* Say whether this node was declared as a "class" or a "struct". */ 2492 #define CLASSTYPE_DECLARED_CLASS(NODE) \ 2493 (LANG_TYPE_CLASS_CHECK (NODE)->declared_class) 2494 2495 /* Nonzero if this class has const members 2496 which have no specified initialization. */ 2497 #define CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE) \ 2498 (TYPE_LANG_SPECIFIC (NODE) \ 2499 ? LANG_TYPE_CLASS_CHECK (NODE)->const_needs_init : 0) 2500 #define SET_CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE, VALUE) \ 2501 (LANG_TYPE_CLASS_CHECK (NODE)->const_needs_init = (VALUE)) 2502 2503 /* Nonzero if this class has ref members 2504 which have no specified initialization. */ 2505 #define CLASSTYPE_REF_FIELDS_NEED_INIT(NODE) \ 2506 (TYPE_LANG_SPECIFIC (NODE) \ 2507 ? LANG_TYPE_CLASS_CHECK (NODE)->ref_needs_init : 0) 2508 #define SET_CLASSTYPE_REF_FIELDS_NEED_INIT(NODE, VALUE) \ 2509 (LANG_TYPE_CLASS_CHECK (NODE)->ref_needs_init = (VALUE)) 2510 2511 /* Nonzero if this class is included from a header file which employs 2512 `#pragma interface', and it is not included in its implementation file. */ 2513 #define CLASSTYPE_INTERFACE_ONLY(NODE) \ 2514 (LANG_TYPE_CLASS_CHECK (NODE)->interface_only) 2515 2516 /* True if we have already determined whether or not vtables, VTTs, 2517 typeinfo, and other similar per-class data should be emitted in 2518 this translation unit. This flag does not indicate whether or not 2519 these items should be emitted; it only indicates that we know one 2520 way or the other. */ 2521 #define CLASSTYPE_INTERFACE_KNOWN(NODE) \ 2522 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown == 0) 2523 /* The opposite of CLASSTYPE_INTERFACE_KNOWN. */ 2524 #define CLASSTYPE_INTERFACE_UNKNOWN(NODE) \ 2525 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown) 2526 2527 #define SET_CLASSTYPE_INTERFACE_UNKNOWN_X(NODE,X) \ 2528 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = !!(X)) 2529 #define SET_CLASSTYPE_INTERFACE_UNKNOWN(NODE) \ 2530 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 1) 2531 #define SET_CLASSTYPE_INTERFACE_KNOWN(NODE) \ 2532 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 0) 2533 2534 /* Nonzero if a _DECL node requires us to output debug info for this class. */ 2535 #define CLASSTYPE_DEBUG_REQUESTED(NODE) \ 2536 (LANG_TYPE_CLASS_CHECK (NODE)->debug_requested) 2537 2538 /* Additional macros for inheritance information. */ 2539 2540 /* Nonzero means that this class is on a path leading to a new vtable. */ 2541 #define BINFO_VTABLE_PATH_MARKED(NODE) BINFO_FLAG_1 (NODE) 2542 2543 /* Nonzero means B (a BINFO) has its own vtable. Any copies will not 2544 have this flag set. */ 2545 #define BINFO_NEW_VTABLE_MARKED(B) (BINFO_FLAG_2 (B)) 2546 2547 /* Compare a BINFO_TYPE with another type for equality. For a binfo, 2548 this is functionally equivalent to using same_type_p, but 2549 measurably faster. At least one of the arguments must be a 2550 BINFO_TYPE. The other can be a BINFO_TYPE or a regular type. If 2551 BINFO_TYPE(T) ever stops being the main variant of the class the 2552 binfo is for, this macro must change. */ 2553 #define SAME_BINFO_TYPE_P(A, B) ((A) == (B)) 2554 2555 /* Any subobject that needs a new vtable must have a vptr and must not 2556 be a non-virtual primary base (since it would then use the vtable from a 2557 derived class and never become non-primary.) */ 2558 #define SET_BINFO_NEW_VTABLE_MARKED(B) \ 2559 (BINFO_NEW_VTABLE_MARKED (B) = 1, \ 2560 gcc_assert (!BINFO_PRIMARY_P (B) || BINFO_VIRTUAL_P (B)), \ 2561 gcc_assert (TYPE_VFIELD (BINFO_TYPE (B)))) 2562 2563 /* Nonzero if this binfo is for a dependent base - one that should not 2564 be searched. */ 2565 #define BINFO_DEPENDENT_BASE_P(NODE) BINFO_FLAG_3 (NODE) 2566 2567 /* Nonzero if this binfo has lost its primary base binfo (because that 2568 is a nearly-empty virtual base that has been taken by some other 2569 base in the complete hierarchy. */ 2570 #define BINFO_LOST_PRIMARY_P(NODE) BINFO_FLAG_4 (NODE) 2571 2572 /* Nonzero if this BINFO is a primary base class. */ 2573 #define BINFO_PRIMARY_P(NODE) BINFO_FLAG_5(NODE) 2574 2575 /* A vec<tree_pair_s> of the vcall indices associated with the class 2576 NODE. The PURPOSE of each element is a FUNCTION_DECL for a virtual 2577 function. The VALUE is the index into the virtual table where the 2578 vcall offset for that function is stored, when NODE is a virtual 2579 base. */ 2580 #define CLASSTYPE_VCALL_INDICES(NODE) \ 2581 (LANG_TYPE_CLASS_CHECK (NODE)->vcall_indices) 2582 2583 /* The various vtables for the class NODE. The primary vtable will be 2584 first, followed by the construction vtables and VTT, if any. */ 2585 #define CLASSTYPE_VTABLES(NODE) \ 2586 (LANG_TYPE_CLASS_CHECK (NODE)->vtables) 2587 2588 /* The std::type_info variable representing this class, or NULL if no 2589 such variable has been created. This field is only set for the 2590 TYPE_MAIN_VARIANT of the class. */ 2591 #define CLASSTYPE_TYPEINFO_VAR(NODE) \ 2592 (LANG_TYPE_CLASS_CHECK (NODE)->typeinfo_var) 2593 2594 /* Accessor macros for the BINFO_VIRTUALS list. */ 2595 2596 /* The number of bytes by which to adjust the `this' pointer when 2597 calling this virtual function. Subtract this value from the this 2598 pointer. Always non-NULL, might be constant zero though. */ 2599 #define BV_DELTA(NODE) (TREE_PURPOSE (NODE)) 2600 2601 /* If non-NULL, the vtable index at which to find the vcall offset 2602 when calling this virtual function. Add the value at that vtable 2603 index to the this pointer. */ 2604 #define BV_VCALL_INDEX(NODE) (TREE_TYPE (NODE)) 2605 2606 /* The function to call. */ 2607 #define BV_FN(NODE) (TREE_VALUE (NODE)) 2608 2609 /* Whether or not this entry is for a lost primary virtual base. */ 2610 #define BV_LOST_PRIMARY(NODE) (TREE_LANG_FLAG_0 (NODE)) 2611 2612 /* For FUNCTION_TYPE or METHOD_TYPE, a list of the exceptions that 2613 this type can raise. Each TREE_VALUE is a _TYPE. The TREE_VALUE 2614 will be NULL_TREE to indicate a throw specification of `()', or 2615 no exceptions allowed. For a noexcept specification, TREE_VALUE 2616 is NULL_TREE and TREE_PURPOSE is the constant-expression. For 2617 a deferred noexcept-specification, TREE_PURPOSE is a DEFERRED_NOEXCEPT 2618 (for templates) or an OVERLOAD list of functions (for implicitly 2619 declared functions). */ 2620 #define TYPE_RAISES_EXCEPTIONS(NODE) \ 2621 TYPE_LANG_SLOT_1 (FUNC_OR_METHOD_CHECK (NODE)) 2622 2623 /* For FUNCTION_TYPE or METHOD_TYPE, return 1 iff it is declared `throw()' 2624 or noexcept(true). */ 2625 #define TYPE_NOTHROW_P(NODE) nothrow_spec_p (TYPE_RAISES_EXCEPTIONS (NODE)) 2626 2627 /* For FUNCTION_TYPE or METHOD_TYPE, true if NODE is noexcept. This is the 2628 case for things declared noexcept(true) and, with -fnothrow-opt, for 2629 throw() functions. */ 2630 #define TYPE_NOEXCEPT_P(NODE) type_noexcept_p (NODE) 2631 2632 /* The binding level associated with the namespace. */ 2633 #define NAMESPACE_LEVEL(NODE) \ 2634 (LANG_DECL_NS_CHECK (NODE)->level) 2635 2636 /* Discriminator values for lang_decl. */ 2637 2638 enum lang_decl_selector 2639 { 2640 lds_min, 2641 lds_fn, 2642 lds_ns, 2643 lds_parm, 2644 lds_decomp 2645 }; 2646 2647 /* Flags shared by all forms of DECL_LANG_SPECIFIC. 2648 2649 Some of the flags live here only to make lang_decl_min/fn smaller. Do 2650 not make this struct larger than 32 bits; instead, make sel smaller. */ 2651 2652 struct GTY(()) lang_decl_base { 2653 /* Larger than necessary for faster access. */ 2654 ENUM_BITFIELD(lang_decl_selector) selector : 16; 2655 ENUM_BITFIELD(languages) language : 1; 2656 unsigned use_template : 2; 2657 unsigned not_really_extern : 1; /* var or fn */ 2658 unsigned initialized_in_class : 1; /* var or fn */ 2659 unsigned threadprivate_or_deleted_p : 1; /* var or fn */ 2660 unsigned anticipated_p : 1; /* fn, type or template */ 2661 /* anticipated_p reused as DECL_OMP_PRIVATIZED_MEMBER in var */ 2662 unsigned friend_or_tls : 1; /* var, fn, type or template */ 2663 unsigned unknown_bound_p : 1; /* var */ 2664 unsigned odr_used : 1; /* var or fn */ 2665 unsigned spare : 1; 2666 unsigned concept_p : 1; /* applies to vars and functions */ 2667 unsigned var_declared_inline_p : 1; /* var */ 2668 unsigned dependent_init_p : 1; /* var */ 2669 /* 2 spare bits */ 2670 }; 2671 2672 /* True for DECL codes which have template info and access. */ 2673 #define LANG_DECL_HAS_MIN(NODE) \ 2674 (VAR_OR_FUNCTION_DECL_P (NODE) \ 2675 || TREE_CODE (NODE) == FIELD_DECL \ 2676 || TREE_CODE (NODE) == CONST_DECL \ 2677 || TREE_CODE (NODE) == TYPE_DECL \ 2678 || TREE_CODE (NODE) == TEMPLATE_DECL \ 2679 || TREE_CODE (NODE) == USING_DECL \ 2680 || TREE_CODE (NODE) == CONCEPT_DECL) 2681 2682 /* DECL_LANG_SPECIFIC for the above codes. */ 2683 2684 struct GTY(()) lang_decl_min { 2685 struct lang_decl_base base; 2686 2687 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is 2688 THUNK_ALIAS. 2689 In a FUNCTION_DECL for which DECL_THUNK_P does not hold, 2690 VAR_DECL, TYPE_DECL, or TEMPLATE_DECL, this is 2691 DECL_TEMPLATE_INFO. */ 2692 tree template_info; 2693 2694 /* In a DECL_THUNK_P FUNCTION_DECL, this is THUNK_VIRTUAL_OFFSET. 2695 In a lambda-capture proxy VAR_DECL, this is DECL_CAPTURED_VARIABLE. 2696 In a function-scope TREE_STATIC VAR_DECL or IMPLICIT_TYPEDEF_P TYPE_DECL, 2697 this is DECL_DISCRIMINATOR. 2698 Otherwise, in a class-scope DECL, this is DECL_ACCESS. */ 2699 tree access; 2700 }; 2701 2702 /* Additional DECL_LANG_SPECIFIC information for functions. */ 2703 2704 struct GTY(()) lang_decl_fn { 2705 struct lang_decl_min min; 2706 2707 /* In a overloaded operator, this is the compressed operator code. */ 2708 unsigned ovl_op_code : 6; 2709 unsigned global_ctor_p : 1; 2710 unsigned global_dtor_p : 1; 2711 2712 unsigned static_function : 1; 2713 unsigned pure_virtual : 1; 2714 unsigned defaulted_p : 1; 2715 unsigned has_in_charge_parm_p : 1; 2716 unsigned has_vtt_parm_p : 1; 2717 unsigned pending_inline_p : 1; 2718 unsigned nonconverting : 1; 2719 unsigned thunk_p : 1; 2720 2721 unsigned this_thunk_p : 1; 2722 unsigned hidden_friend_p : 1; 2723 unsigned omp_declare_reduction_p : 1; 2724 unsigned has_dependent_explicit_spec_p : 1; 2725 unsigned immediate_fn_p : 1; 2726 unsigned maybe_deleted : 1; 2727 unsigned coroutine_p : 1; 2728 2729 unsigned spare : 9; 2730 2731 /* 32-bits padding on 64-bit host. */ 2732 2733 /* For a non-thunk function decl, this is a tree list of 2734 friendly classes. For a thunk function decl, it is the 2735 thunked to function decl. */ 2736 tree befriending_classes; 2737 2738 /* For a non-virtual FUNCTION_DECL, this is 2739 DECL_FRIEND_CONTEXT. For a virtual FUNCTION_DECL for which 2740 DECL_THIS_THUNK_P does not hold, this is DECL_THUNKS. Both 2741 this pointer and result pointer adjusting thunks are 2742 chained here. This pointer thunks to return pointer thunks 2743 will be chained on the return pointer thunk. */ 2744 tree context; 2745 2746 union lang_decl_u5 2747 { 2748 /* In a non-thunk FUNCTION_DECL or TEMPLATE_DECL, this is 2749 DECL_CLONED_FUNCTION. */ 2750 tree GTY ((tag ("0"))) cloned_function; 2751 2752 /* In a FUNCTION_DECL for which THUNK_P holds this is the 2753 THUNK_FIXED_OFFSET. */ 2754 HOST_WIDE_INT GTY ((tag ("1"))) fixed_offset; 2755 } GTY ((desc ("%1.thunk_p"))) u5; 2756 2757 union lang_decl_u3 2758 { 2759 struct cp_token_cache * GTY ((tag ("1"))) pending_inline_info; 2760 tree GTY ((tag ("0"))) saved_auto_return_type; 2761 } GTY ((desc ("%1.pending_inline_p"))) u; 2762 2763 }; 2764 2765 /* DECL_LANG_SPECIFIC for namespaces. */ 2766 2767 struct GTY(()) lang_decl_ns { 2768 struct lang_decl_base base; 2769 cp_binding_level *level; 2770 2771 /* Inline children. These need to be va_gc, because of PCH. */ 2772 vec<tree, va_gc> *inlinees; 2773 2774 /* Hash table of bound decls. It'd be nice to have this inline, but 2775 as the hash_map has a dtor, we can't then put this struct into a 2776 union (until moving to c++11). */ 2777 hash_table<named_decl_hash> *bindings; 2778 }; 2779 2780 /* DECL_LANG_SPECIFIC for parameters. */ 2781 2782 struct GTY(()) lang_decl_parm { 2783 struct lang_decl_base base; 2784 int level; 2785 int index; 2786 }; 2787 2788 /* Additional DECL_LANG_SPECIFIC information for structured bindings. */ 2789 2790 struct GTY(()) lang_decl_decomp { 2791 struct lang_decl_min min; 2792 /* The artificial underlying "e" variable of the structured binding 2793 variable. */ 2794 tree base; 2795 }; 2796 2797 /* DECL_LANG_SPECIFIC for all types. It would be nice to just make this a 2798 union rather than a struct containing a union as its only field, but 2799 tree.h declares it as a struct. */ 2800 2801 struct GTY(()) lang_decl { 2802 union GTY((desc ("%h.base.selector"))) lang_decl_u { 2803 /* Nothing of only the base type exists. */ 2804 struct lang_decl_base GTY ((default)) base; 2805 struct lang_decl_min GTY((tag ("lds_min"))) min; 2806 struct lang_decl_fn GTY ((tag ("lds_fn"))) fn; 2807 struct lang_decl_ns GTY((tag ("lds_ns"))) ns; 2808 struct lang_decl_parm GTY((tag ("lds_parm"))) parm; 2809 struct lang_decl_decomp GTY((tag ("lds_decomp"))) decomp; 2810 } u; 2811 }; 2812 2813 /* Looks through a template (if present) to find what it declares. */ 2814 #define STRIP_TEMPLATE(NODE) \ 2815 (TREE_CODE (NODE) == TEMPLATE_DECL ? DECL_TEMPLATE_RESULT (NODE) : NODE) 2816 2817 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007) 2818 2819 #define LANG_DECL_MIN_CHECK(NODE) __extension__ \ 2820 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 2821 if (!LANG_DECL_HAS_MIN (NODE)) \ 2822 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 2823 <->u.min; }) 2824 2825 /* We want to be able to check DECL_CONSTRUCTOR_P and such on a function 2826 template, not just on a FUNCTION_DECL. So when looking for things in 2827 lang_decl_fn, look down through a TEMPLATE_DECL into its result. */ 2828 #define LANG_DECL_FN_CHECK(NODE) __extension__ \ 2829 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE)); \ 2830 if (!DECL_DECLARES_FUNCTION_P (NODE) \ 2831 || lt->u.base.selector != lds_fn) \ 2832 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 2833 <->u.fn; }) 2834 2835 #define LANG_DECL_NS_CHECK(NODE) __extension__ \ 2836 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 2837 if (TREE_CODE (NODE) != NAMESPACE_DECL \ 2838 || lt->u.base.selector != lds_ns) \ 2839 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 2840 <->u.ns; }) 2841 2842 #define LANG_DECL_PARM_CHECK(NODE) __extension__ \ 2843 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 2844 if (TREE_CODE (NODE) != PARM_DECL \ 2845 || lt->u.base.selector != lds_parm) \ 2846 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 2847 <->u.parm; }) 2848 2849 #define LANG_DECL_DECOMP_CHECK(NODE) __extension__ \ 2850 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 2851 if (!VAR_P (NODE) \ 2852 || lt->u.base.selector != lds_decomp) \ 2853 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 2854 <->u.decomp; }) 2855 2856 #else 2857 2858 #define LANG_DECL_MIN_CHECK(NODE) \ 2859 (&DECL_LANG_SPECIFIC (NODE)->u.min) 2860 2861 #define LANG_DECL_FN_CHECK(NODE) \ 2862 (&DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE))->u.fn) 2863 2864 #define LANG_DECL_NS_CHECK(NODE) \ 2865 (&DECL_LANG_SPECIFIC (NODE)->u.ns) 2866 2867 #define LANG_DECL_PARM_CHECK(NODE) \ 2868 (&DECL_LANG_SPECIFIC (NODE)->u.parm) 2869 2870 #define LANG_DECL_DECOMP_CHECK(NODE) \ 2871 (&DECL_LANG_SPECIFIC (NODE)->u.decomp) 2872 2873 #endif /* ENABLE_TREE_CHECKING */ 2874 2875 /* For a FUNCTION_DECL or a VAR_DECL, the language linkage for the 2876 declaration. Some entities (like a member function in a local 2877 class, or a local variable) do not have linkage at all, and this 2878 macro should not be used in those cases. 2879 2880 Implementation note: A FUNCTION_DECL without DECL_LANG_SPECIFIC was 2881 created by language-independent code, and has C linkage. Most 2882 VAR_DECLs have C++ linkage, and do not have DECL_LANG_SPECIFIC, but 2883 we do create DECL_LANG_SPECIFIC for variables with non-C++ linkage. */ 2884 #define DECL_LANGUAGE(NODE) \ 2885 (DECL_LANG_SPECIFIC (NODE) \ 2886 ? DECL_LANG_SPECIFIC (NODE)->u.base.language \ 2887 : (TREE_CODE (NODE) == FUNCTION_DECL \ 2888 ? lang_c : lang_cplusplus)) 2889 2890 /* Set the language linkage for NODE to LANGUAGE. */ 2891 #define SET_DECL_LANGUAGE(NODE, LANGUAGE) \ 2892 (DECL_LANG_SPECIFIC (NODE)->u.base.language = (LANGUAGE)) 2893 2894 /* For FUNCTION_DECLs and TEMPLATE_DECLs: nonzero means that this function 2895 is a constructor. */ 2896 #define DECL_CONSTRUCTOR_P(NODE) \ 2897 DECL_CXX_CONSTRUCTOR_P (STRIP_TEMPLATE (NODE)) 2898 2899 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a complete 2900 object. */ 2901 #define DECL_COMPLETE_CONSTRUCTOR_P(NODE) \ 2902 (DECL_NAME (NODE) == complete_ctor_identifier) 2903 2904 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a base 2905 object. */ 2906 #define DECL_BASE_CONSTRUCTOR_P(NODE) \ 2907 (DECL_NAME (NODE) == base_ctor_identifier) 2908 2909 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor, but not either the 2910 specialized in-charge constructor or the specialized not-in-charge 2911 constructor. */ 2912 #define DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P(NODE) \ 2913 (DECL_NAME (NODE) == ctor_identifier) 2914 2915 /* Nonzero if NODE (a FUNCTION_DECL) is a copy constructor. */ 2916 #define DECL_COPY_CONSTRUCTOR_P(NODE) \ 2917 (DECL_CONSTRUCTOR_P (NODE) && copy_fn_p (NODE) > 0) 2918 2919 /* Nonzero if NODE (a FUNCTION_DECL) is a move constructor. */ 2920 #define DECL_MOVE_CONSTRUCTOR_P(NODE) \ 2921 (DECL_CONSTRUCTOR_P (NODE) && move_fn_p (NODE)) 2922 2923 /* Nonzero if NODE (a FUNCTION_DECL or TEMPLATE_DECL) 2924 is a destructor. */ 2925 #define DECL_DESTRUCTOR_P(NODE) \ 2926 DECL_CXX_DESTRUCTOR_P (STRIP_TEMPLATE (NODE)) 2927 2928 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor, but not the 2929 specialized in-charge constructor, in-charge deleting constructor, 2930 or the base destructor. */ 2931 #define DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P(NODE) \ 2932 (DECL_NAME (NODE) == dtor_identifier) 2933 2934 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete 2935 object. */ 2936 #define DECL_COMPLETE_DESTRUCTOR_P(NODE) \ 2937 (DECL_NAME (NODE) == complete_dtor_identifier) 2938 2939 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a base 2940 object. */ 2941 #define DECL_BASE_DESTRUCTOR_P(NODE) \ 2942 (DECL_NAME (NODE) == base_dtor_identifier) 2943 2944 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete 2945 object that deletes the object after it has been destroyed. */ 2946 #define DECL_DELETING_DESTRUCTOR_P(NODE) \ 2947 (DECL_NAME (NODE) == deleting_dtor_identifier) 2948 2949 /* Nonzero if either DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P or 2950 DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P is true of NODE. */ 2951 #define DECL_MAYBE_IN_CHARGE_CDTOR_P(NODE) \ 2952 (DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (NODE) \ 2953 || DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (NODE)) 2954 2955 /* Nonzero if NODE (a _DECL) is a cloned constructor or 2956 destructor. */ 2957 #define DECL_CLONED_FUNCTION_P(NODE) \ 2958 (DECL_NAME (NODE) \ 2959 && IDENTIFIER_CDTOR_P (DECL_NAME (NODE)) \ 2960 && !DECL_MAYBE_IN_CHARGE_CDTOR_P (NODE)) 2961 2962 /* If DECL_CLONED_FUNCTION_P holds, this is the function that was 2963 cloned. */ 2964 #define DECL_CLONED_FUNCTION(NODE) \ 2965 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (NODE))->u.fn.u5.cloned_function) 2966 2967 /* Perform an action for each clone of FN, if FN is a function with 2968 clones. This macro should be used like: 2969 2970 FOR_EACH_CLONE (clone, fn) 2971 { ... } 2972 2973 */ 2974 #define FOR_EACH_CLONE(CLONE, FN) \ 2975 if (!(TREE_CODE (FN) == FUNCTION_DECL \ 2976 && DECL_MAYBE_IN_CHARGE_CDTOR_P (FN))) \ 2977 ; \ 2978 else \ 2979 for (CLONE = DECL_CHAIN (FN); \ 2980 CLONE && DECL_CLONED_FUNCTION_P (CLONE); \ 2981 CLONE = DECL_CHAIN (CLONE)) 2982 2983 /* Nonzero if NODE has DECL_DISCRIMINATOR and not DECL_ACCESS. */ 2984 #define DECL_DISCRIMINATOR_P(NODE) \ 2985 (((TREE_CODE (NODE) == VAR_DECL && TREE_STATIC (NODE)) \ 2986 || DECL_IMPLICIT_TYPEDEF_P (NODE)) \ 2987 && DECL_FUNCTION_SCOPE_P (NODE)) 2988 2989 /* Discriminator for name mangling. */ 2990 #define DECL_DISCRIMINATOR(NODE) (LANG_DECL_MIN_CHECK (NODE)->access) 2991 2992 /* The index of a user-declared parameter in its function, starting at 1. 2993 All artificial parameters will have index 0. */ 2994 #define DECL_PARM_INDEX(NODE) \ 2995 (LANG_DECL_PARM_CHECK (NODE)->index) 2996 2997 /* The level of a user-declared parameter in its function, starting at 1. 2998 A parameter of the function will have level 1; a parameter of the first 2999 nested function declarator (i.e. t in void f (void (*p)(T t))) will have 3000 level 2. */ 3001 #define DECL_PARM_LEVEL(NODE) \ 3002 (LANG_DECL_PARM_CHECK (NODE)->level) 3003 3004 /* Nonzero if the VTT parm has been added to NODE. */ 3005 #define DECL_HAS_VTT_PARM_P(NODE) \ 3006 (LANG_DECL_FN_CHECK (NODE)->has_vtt_parm_p) 3007 3008 /* Nonzero if NODE is a FUNCTION_DECL for which a VTT parameter is 3009 required. */ 3010 #define DECL_NEEDS_VTT_PARM_P(NODE) \ 3011 (CLASSTYPE_VBASECLASSES (DECL_CONTEXT (NODE)) \ 3012 && (DECL_BASE_CONSTRUCTOR_P (NODE) \ 3013 || DECL_BASE_DESTRUCTOR_P (NODE))) 3014 3015 /* Nonzero if NODE is a user-defined conversion operator. */ 3016 #define DECL_CONV_FN_P(NODE) IDENTIFIER_CONV_OP_P (DECL_NAME (NODE)) 3017 3018 /* The type to which conversion operator FN converts to. */ 3019 #define DECL_CONV_FN_TYPE(FN) \ 3020 TREE_TYPE ((gcc_checking_assert (DECL_CONV_FN_P (FN)), DECL_NAME (FN))) 3021 3022 /* Nonzero if NODE, a static data member, was declared in its class as an 3023 array of unknown bound. */ 3024 #define VAR_HAD_UNKNOWN_BOUND(NODE) \ 3025 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE)) \ 3026 ? DECL_LANG_SPECIFIC (NODE)->u.base.unknown_bound_p \ 3027 : false) 3028 #define SET_VAR_HAD_UNKNOWN_BOUND(NODE) \ 3029 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))->u.base.unknown_bound_p = true) 3030 3031 /* True iff decl NODE is for an overloaded operator. */ 3032 #define DECL_OVERLOADED_OPERATOR_P(NODE) \ 3033 IDENTIFIER_ANY_OP_P (DECL_NAME (NODE)) 3034 3035 /* Nonzero if NODE is an assignment operator (including += and such). */ 3036 #define DECL_ASSIGNMENT_OPERATOR_P(NODE) \ 3037 IDENTIFIER_ASSIGN_OP_P (DECL_NAME (NODE)) 3038 3039 /* NODE is a function_decl for an overloaded operator. Return its 3040 compressed (raw) operator code. Note that this is not a TREE_CODE. */ 3041 #define DECL_OVERLOADED_OPERATOR_CODE_RAW(NODE) \ 3042 (LANG_DECL_FN_CHECK (NODE)->ovl_op_code) 3043 3044 /* DECL is an overloaded operator. Test whether it is for TREE_CODE 3045 (a literal constant). */ 3046 #define DECL_OVERLOADED_OPERATOR_IS(DECL, CODE) \ 3047 (DECL_OVERLOADED_OPERATOR_CODE_RAW (DECL) == OVL_OP_##CODE) 3048 3049 /* For FUNCTION_DECLs: nonzero means that this function is a 3050 constructor or a destructor with an extra in-charge parameter to 3051 control whether or not virtual bases are constructed. */ 3052 #define DECL_HAS_IN_CHARGE_PARM_P(NODE) \ 3053 (LANG_DECL_FN_CHECK (NODE)->has_in_charge_parm_p) 3054 3055 /* Nonzero if DECL is a declaration of __builtin_constant_p. */ 3056 #define DECL_IS_BUILTIN_CONSTANT_P(NODE) \ 3057 (TREE_CODE (NODE) == FUNCTION_DECL \ 3058 && DECL_BUILT_IN_CLASS (NODE) == BUILT_IN_NORMAL \ 3059 && DECL_FUNCTION_CODE (NODE) == BUILT_IN_CONSTANT_P) 3060 3061 /* Nonzero for _DECL means that this decl appears in (or will appear 3062 in) as a member in a RECORD_TYPE or UNION_TYPE node. It is also for 3063 detecting circularity in case members are multiply defined. In the 3064 case of a VAR_DECL, it means that no definition has been seen, even 3065 if an initializer has been. */ 3066 #define DECL_IN_AGGR_P(NODE) (DECL_LANG_FLAG_3 (NODE)) 3067 3068 /* Nonzero for a VAR_DECL means that the variable's initialization (if 3069 any) has been processed. (In general, DECL_INITIALIZED_P is 3070 !DECL_EXTERNAL, but static data members may be initialized even if 3071 not defined.) */ 3072 #define DECL_INITIALIZED_P(NODE) \ 3073 (TREE_LANG_FLAG_1 (VAR_DECL_CHECK (NODE))) 3074 3075 /* Nonzero for a VAR_DECL iff an explicit initializer was provided 3076 or a non-trivial constructor is called. */ 3077 #define DECL_NONTRIVIALLY_INITIALIZED_P(NODE) \ 3078 (TREE_LANG_FLAG_6 (VAR_DECL_CHECK (NODE))) 3079 3080 /* Nonzero for a VAR_DECL that was initialized with a 3081 constant-expression. */ 3082 #define DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P(NODE) \ 3083 (TREE_LANG_FLAG_2 (VAR_DECL_CHECK (NODE))) 3084 3085 /* Nonzero if the DECL was initialized in the class definition itself, 3086 rather than outside the class. This is used for both static member 3087 VAR_DECLS, and FUNCTION_DECLS that are defined in the class. */ 3088 #define DECL_INITIALIZED_IN_CLASS_P(DECL) \ 3089 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \ 3090 ->u.base.initialized_in_class) 3091 3092 /* Nonzero if the DECL is used in the sense of 3.2 [basic.def.odr]. 3093 Only available for decls with DECL_LANG_SPECIFIC. */ 3094 #define DECL_ODR_USED(DECL) \ 3095 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \ 3096 ->u.base.odr_used) 3097 3098 /* Nonzero for DECL means that this decl is just a friend declaration, 3099 and should not be added to the list of members for this class. */ 3100 #define DECL_FRIEND_P(NODE) \ 3101 (DECL_LANG_SPECIFIC (TYPE_FUNCTION_OR_TEMPLATE_DECL_CHECK (NODE)) \ 3102 ->u.base.friend_or_tls) 3103 3104 /* Nonzero if the thread-local variable was declared with __thread as 3105 opposed to thread_local. */ 3106 #define DECL_GNU_TLS_P(NODE) \ 3107 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE)) \ 3108 && DECL_LANG_SPECIFIC (NODE)->u.base.friend_or_tls) 3109 #define SET_DECL_GNU_TLS_P(NODE) \ 3110 (retrofit_lang_decl (VAR_DECL_CHECK (NODE)), \ 3111 DECL_LANG_SPECIFIC (NODE)->u.base.friend_or_tls = true) 3112 3113 /* A TREE_LIST of the types which have befriended this FUNCTION_DECL. */ 3114 #define DECL_BEFRIENDING_CLASSES(NODE) \ 3115 (LANG_DECL_FN_CHECK (NODE)->befriending_classes) 3116 3117 /* Nonzero for FUNCTION_DECL means that this decl is a static 3118 member function. */ 3119 #define DECL_STATIC_FUNCTION_P(NODE) \ 3120 (LANG_DECL_FN_CHECK (NODE)->static_function) 3121 3122 /* Nonzero for FUNCTION_DECL means that this decl is a non-static 3123 member function. */ 3124 #define DECL_NONSTATIC_MEMBER_FUNCTION_P(NODE) \ 3125 (TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE) 3126 3127 /* Nonzero for FUNCTION_DECL means that this decl is a member function 3128 (static or non-static). */ 3129 #define DECL_FUNCTION_MEMBER_P(NODE) \ 3130 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) || DECL_STATIC_FUNCTION_P (NODE)) 3131 3132 /* Nonzero for FUNCTION_DECL means that this member function 3133 has `this' as const X *const. */ 3134 #define DECL_CONST_MEMFUNC_P(NODE) \ 3135 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \ 3136 && CP_TYPE_CONST_P (TREE_TYPE (TREE_VALUE \ 3137 (TYPE_ARG_TYPES (TREE_TYPE (NODE)))))) 3138 3139 /* Nonzero for FUNCTION_DECL means that this member function 3140 has `this' as volatile X *const. */ 3141 #define DECL_VOLATILE_MEMFUNC_P(NODE) \ 3142 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \ 3143 && CP_TYPE_VOLATILE_P (TREE_TYPE (TREE_VALUE \ 3144 (TYPE_ARG_TYPES (TREE_TYPE (NODE)))))) 3145 3146 /* Nonzero for a DECL means that this member is a non-static member. */ 3147 #define DECL_NONSTATIC_MEMBER_P(NODE) \ 3148 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \ 3149 || TREE_CODE (NODE) == FIELD_DECL) 3150 3151 /* Nonzero for a FIELD_DECL means that this member object type 3152 is mutable. */ 3153 #define DECL_MUTABLE_P(NODE) (DECL_LANG_FLAG_0 (FIELD_DECL_CHECK (NODE))) 3154 3155 /* Nonzero for _DECL means that this constructor or conversion function is 3156 non-converting. */ 3157 #define DECL_NONCONVERTING_P(NODE) \ 3158 (LANG_DECL_FN_CHECK (NODE)->nonconverting) 3159 3160 /* Nonzero for FUNCTION_DECL means that this member function is a pure 3161 virtual function. */ 3162 #define DECL_PURE_VIRTUAL_P(NODE) \ 3163 (LANG_DECL_FN_CHECK (NODE)->pure_virtual) 3164 3165 /* Nonzero for FUNCTION_DECL means that this member function (either 3166 a constructor or a conversion function) has an explicit specifier 3167 with a value-dependent expression. */ 3168 #define DECL_HAS_DEPENDENT_EXPLICIT_SPEC_P(NODE) \ 3169 (LANG_DECL_FN_CHECK (NODE)->has_dependent_explicit_spec_p) 3170 3171 /* Nonzero for a defaulted FUNCTION_DECL for which we haven't decided yet if 3172 it's deleted; we will decide in synthesize_method. */ 3173 #define DECL_MAYBE_DELETED(NODE) \ 3174 (LANG_DECL_FN_CHECK (NODE)->maybe_deleted) 3175 3176 /* True (in a FUNCTION_DECL) if NODE is a virtual function that is an 3177 invalid overrider for a function from a base class. Once we have 3178 complained about an invalid overrider we avoid complaining about it 3179 again. */ 3180 #define DECL_INVALID_OVERRIDER_P(NODE) \ 3181 (DECL_LANG_FLAG_4 (NODE)) 3182 3183 /* True (in a FUNCTION_DECL) if NODE is a function declared with 3184 an override virt-specifier */ 3185 #define DECL_OVERRIDE_P(NODE) (TREE_LANG_FLAG_0 (NODE)) 3186 3187 /* The thunks associated with NODE, a FUNCTION_DECL. */ 3188 #define DECL_THUNKS(NODE) \ 3189 (DECL_VIRTUAL_P (NODE) ? LANG_DECL_FN_CHECK (NODE)->context : NULL_TREE) 3190 3191 /* Set DECL_THUNKS. */ 3192 #define SET_DECL_THUNKS(NODE,THUNKS) \ 3193 (LANG_DECL_FN_CHECK (NODE)->context = (THUNKS)) 3194 3195 /* If NODE, a FUNCTION_DECL, is a C++11 inheriting constructor, then this 3196 is the constructor it inherits from. */ 3197 #define DECL_INHERITED_CTOR(NODE) \ 3198 (DECL_DECLARES_FUNCTION_P (NODE) && DECL_CONSTRUCTOR_P (NODE) \ 3199 ? LANG_DECL_FN_CHECK (NODE)->context : NULL_TREE) 3200 3201 /* And this is the base that constructor comes from. */ 3202 #define DECL_INHERITED_CTOR_BASE(NODE) \ 3203 (DECL_INHERITED_CTOR (NODE) \ 3204 ? DECL_CONTEXT (flag_new_inheriting_ctors \ 3205 ? strip_inheriting_ctors (NODE) \ 3206 : DECL_INHERITED_CTOR (NODE)) \ 3207 : NULL_TREE) 3208 3209 /* Set the inherited base. */ 3210 #define SET_DECL_INHERITED_CTOR(NODE,INH) \ 3211 (LANG_DECL_FN_CHECK (NODE)->context = (INH)) 3212 3213 /* Nonzero if NODE is a thunk, rather than an ordinary function. */ 3214 #define DECL_THUNK_P(NODE) \ 3215 (TREE_CODE (NODE) == FUNCTION_DECL \ 3216 && DECL_LANG_SPECIFIC (NODE) \ 3217 && LANG_DECL_FN_CHECK (NODE)->thunk_p) 3218 3219 /* Set DECL_THUNK_P for node. */ 3220 #define SET_DECL_THUNK_P(NODE, THIS_ADJUSTING) \ 3221 (LANG_DECL_FN_CHECK (NODE)->thunk_p = 1, \ 3222 LANG_DECL_FN_CHECK (NODE)->this_thunk_p = (THIS_ADJUSTING)) 3223 3224 /* Nonzero if NODE is a this pointer adjusting thunk. */ 3225 #define DECL_THIS_THUNK_P(NODE) \ 3226 (DECL_THUNK_P (NODE) && LANG_DECL_FN_CHECK (NODE)->this_thunk_p) 3227 3228 /* Nonzero if NODE is a result pointer adjusting thunk. */ 3229 #define DECL_RESULT_THUNK_P(NODE) \ 3230 (DECL_THUNK_P (NODE) && !LANG_DECL_FN_CHECK (NODE)->this_thunk_p) 3231 3232 /* Nonzero if NODE is a FUNCTION_DECL, but not a thunk. */ 3233 #define DECL_NON_THUNK_FUNCTION_P(NODE) \ 3234 (TREE_CODE (NODE) == FUNCTION_DECL && !DECL_THUNK_P (NODE)) 3235 3236 /* Nonzero if NODE is `extern "C"'. */ 3237 #define DECL_EXTERN_C_P(NODE) \ 3238 (DECL_LANGUAGE (NODE) == lang_c) 3239 3240 /* Nonzero if NODE is an `extern "C"' function. */ 3241 #define DECL_EXTERN_C_FUNCTION_P(NODE) \ 3242 (DECL_NON_THUNK_FUNCTION_P (NODE) && DECL_EXTERN_C_P (NODE)) 3243 3244 /* True if DECL is declared 'constexpr'. */ 3245 #define DECL_DECLARED_CONSTEXPR_P(DECL) \ 3246 DECL_LANG_FLAG_8 (VAR_OR_FUNCTION_DECL_CHECK (STRIP_TEMPLATE (DECL))) 3247 3248 /* True if FNDECL is an immediate function. */ 3249 #define DECL_IMMEDIATE_FUNCTION_P(NODE) \ 3250 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (STRIP_TEMPLATE (NODE))) \ 3251 ? LANG_DECL_FN_CHECK (NODE)->immediate_fn_p \ 3252 : false) 3253 #define SET_DECL_IMMEDIATE_FUNCTION_P(NODE) \ 3254 (retrofit_lang_decl (FUNCTION_DECL_CHECK (NODE)), \ 3255 LANG_DECL_FN_CHECK (NODE)->immediate_fn_p = true) 3256 3257 // True if NODE was declared as 'concept'. The flag implies that the 3258 // declaration is constexpr, that the declaration cannot be specialized or 3259 // refined, and that the result type must be convertible to bool. 3260 #define DECL_DECLARED_CONCEPT_P(NODE) \ 3261 (DECL_LANG_SPECIFIC (NODE)->u.base.concept_p) 3262 3263 /* Nonzero if this DECL is the __PRETTY_FUNCTION__ variable in a 3264 template function. */ 3265 #define DECL_PRETTY_FUNCTION_P(NODE) \ 3266 (DECL_NAME (NODE) \ 3267 && id_equal (DECL_NAME (NODE), "__PRETTY_FUNCTION__")) 3268 3269 /* For a DECL, true if it is __func__ or similar. */ 3270 #define DECL_FNAME_P(NODE) \ 3271 (VAR_P (NODE) && DECL_NAME (NODE) && DECL_ARTIFICIAL (NODE) \ 3272 && DECL_HAS_VALUE_EXPR_P (NODE) \ 3273 && (id_equal (DECL_NAME (NODE), "__PRETTY_FUNCTION__") \ 3274 || id_equal (DECL_NAME (NODE), "__FUNCTION__") \ 3275 || id_equal (DECL_NAME (NODE), "__func__"))) 3276 3277 /* Nonzero if the variable was declared to be thread-local. 3278 We need a special C++ version of this test because the middle-end 3279 DECL_THREAD_LOCAL_P uses the symtab, so we can't use it for 3280 templates. */ 3281 #define CP_DECL_THREAD_LOCAL_P(NODE) \ 3282 (TREE_LANG_FLAG_0 (VAR_DECL_CHECK (NODE))) 3283 3284 /* The _TYPE context in which this _DECL appears. This field holds the 3285 class where a virtual function instance is actually defined. */ 3286 #define DECL_CLASS_CONTEXT(NODE) \ 3287 (DECL_CLASS_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : NULL_TREE) 3288 3289 /* For a non-member friend function, the class (if any) in which this 3290 friend was defined. For example, given: 3291 3292 struct S { friend void f () { ... } }; 3293 3294 the DECL_FRIEND_CONTEXT for `f' will be `S'. */ 3295 #define DECL_FRIEND_CONTEXT(NODE) \ 3296 ((DECL_DECLARES_FUNCTION_P (NODE) \ 3297 && DECL_FRIEND_P (NODE) && !DECL_FUNCTION_MEMBER_P (NODE)) \ 3298 ? LANG_DECL_FN_CHECK (NODE)->context \ 3299 : NULL_TREE) 3300 3301 /* Set the DECL_FRIEND_CONTEXT for NODE to CONTEXT. */ 3302 #define SET_DECL_FRIEND_CONTEXT(NODE, CONTEXT) \ 3303 (LANG_DECL_FN_CHECK (NODE)->context = (CONTEXT)) 3304 3305 #define CP_DECL_CONTEXT(NODE) \ 3306 (!DECL_FILE_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : global_namespace) 3307 #define CP_TYPE_CONTEXT(NODE) \ 3308 (!TYPE_FILE_SCOPE_P (NODE) ? TYPE_CONTEXT (NODE) : global_namespace) 3309 #define FROB_CONTEXT(NODE) \ 3310 ((NODE) == global_namespace ? DECL_CONTEXT (NODE) : (NODE)) 3311 3312 /* 1 iff NODE has namespace scope, including the global namespace. */ 3313 #define DECL_NAMESPACE_SCOPE_P(NODE) \ 3314 (!DECL_TEMPLATE_PARM_P (NODE) \ 3315 && TREE_CODE (CP_DECL_CONTEXT (NODE)) == NAMESPACE_DECL) 3316 3317 #define TYPE_NAMESPACE_SCOPE_P(NODE) \ 3318 (TREE_CODE (CP_TYPE_CONTEXT (NODE)) == NAMESPACE_DECL) 3319 3320 #define NAMESPACE_SCOPE_P(NODE) \ 3321 ((DECL_P (NODE) && DECL_NAMESPACE_SCOPE_P (NODE)) \ 3322 || (TYPE_P (NODE) && TYPE_NAMESPACE_SCOPE_P (NODE))) 3323 3324 /* 1 iff NODE is a class member. */ 3325 #define DECL_CLASS_SCOPE_P(NODE) \ 3326 (DECL_CONTEXT (NODE) && TYPE_P (DECL_CONTEXT (NODE))) 3327 3328 #define TYPE_CLASS_SCOPE_P(NODE) \ 3329 (TYPE_CONTEXT (NODE) && TYPE_P (TYPE_CONTEXT (NODE))) 3330 3331 /* 1 iff NODE is function-local. */ 3332 #define DECL_FUNCTION_SCOPE_P(NODE) \ 3333 (DECL_CONTEXT (NODE) \ 3334 && TREE_CODE (DECL_CONTEXT (NODE)) == FUNCTION_DECL) 3335 3336 #define TYPE_FUNCTION_SCOPE_P(NODE) \ 3337 (TYPE_CONTEXT (NODE) && TREE_CODE (TYPE_CONTEXT (NODE)) == FUNCTION_DECL) 3338 3339 /* 1 iff VAR_DECL node NODE is a type-info decl. This flag is set for 3340 both the primary typeinfo object and the associated NTBS name. */ 3341 #define DECL_TINFO_P(NODE) TREE_LANG_FLAG_4 (VAR_DECL_CHECK (NODE)) 3342 3343 /* 1 iff VAR_DECL node NODE is virtual table or VTT. We forward to 3344 DECL_VIRTUAL_P from the common code, as that has the semantics we 3345 need. But we want a more descriptive name. */ 3346 #define DECL_VTABLE_OR_VTT_P(NODE) DECL_VIRTUAL_P (VAR_DECL_CHECK (NODE)) 3347 3348 /* 1 iff FUNCTION_TYPE or METHOD_TYPE has a ref-qualifier (either & or &&). */ 3349 #define FUNCTION_REF_QUALIFIED(NODE) \ 3350 TREE_LANG_FLAG_4 (FUNC_OR_METHOD_CHECK (NODE)) 3351 3352 /* 1 iff FUNCTION_TYPE or METHOD_TYPE has &&-ref-qualifier. */ 3353 #define FUNCTION_RVALUE_QUALIFIED(NODE) \ 3354 TREE_LANG_FLAG_5 (FUNC_OR_METHOD_CHECK (NODE)) 3355 3356 /* 1 iff NODE is function-local, but for types. */ 3357 #define LOCAL_CLASS_P(NODE) \ 3358 (decl_function_context (TYPE_MAIN_DECL (NODE)) != NULL_TREE) 3359 3360 /* The nesting depth of namespace, class or function. Makes is_ancestor much 3361 simpler. Only 8 bits available. */ 3362 #define SCOPE_DEPTH(NODE) \ 3363 (NAMESPACE_DECL_CHECK (NODE)->base.u.bits.address_space) 3364 3365 /* Whether the namepace is an inline namespace. */ 3366 #define DECL_NAMESPACE_INLINE_P(NODE) \ 3367 TREE_LANG_FLAG_0 (NAMESPACE_DECL_CHECK (NODE)) 3368 3369 /* In a NAMESPACE_DECL, a vector of inline namespaces. */ 3370 #define DECL_NAMESPACE_INLINEES(NODE) \ 3371 (LANG_DECL_NS_CHECK (NODE)->inlinees) 3372 3373 /* Pointer to hash_map from IDENTIFIERS to DECLS */ 3374 #define DECL_NAMESPACE_BINDINGS(NODE) \ 3375 (LANG_DECL_NS_CHECK (NODE)->bindings) 3376 3377 /* In a NAMESPACE_DECL, points to the original namespace if this is 3378 a namespace alias. */ 3379 #define DECL_NAMESPACE_ALIAS(NODE) \ 3380 DECL_ABSTRACT_ORIGIN (NAMESPACE_DECL_CHECK (NODE)) 3381 #define ORIGINAL_NAMESPACE(NODE) \ 3382 (DECL_NAMESPACE_ALIAS (NODE) ? DECL_NAMESPACE_ALIAS (NODE) : (NODE)) 3383 3384 /* Nonzero if NODE is the std namespace. */ 3385 #define DECL_NAMESPACE_STD_P(NODE) \ 3386 ((NODE) == std_node) 3387 3388 /* In a TREE_LIST in an attribute list, indicates that the attribute 3389 must be applied at instantiation time. */ 3390 #define ATTR_IS_DEPENDENT(NODE) TREE_LANG_FLAG_0 (TREE_LIST_CHECK (NODE)) 3391 3392 /* In a TREE_LIST in the argument of attribute abi_tag, indicates that the tag 3393 was inherited from a template parameter, not explicitly indicated. */ 3394 #define ABI_TAG_IMPLICIT(NODE) TREE_LANG_FLAG_0 (TREE_LIST_CHECK (NODE)) 3395 3396 /* Non zero if this is a using decl for a dependent scope. */ 3397 #define DECL_DEPENDENT_P(NODE) DECL_LANG_FLAG_0 (USING_DECL_CHECK (NODE)) 3398 3399 /* The scope named in a using decl. */ 3400 #define USING_DECL_SCOPE(NODE) DECL_RESULT_FLD (USING_DECL_CHECK (NODE)) 3401 3402 /* The decls named by a using decl. */ 3403 #define USING_DECL_DECLS(NODE) DECL_INITIAL (USING_DECL_CHECK (NODE)) 3404 3405 /* Non zero if the using decl refers to a dependent type. */ 3406 #define USING_DECL_TYPENAME_P(NODE) DECL_LANG_FLAG_1 (USING_DECL_CHECK (NODE)) 3407 3408 /* In a FUNCTION_DECL, this is nonzero if this function was defined in 3409 the class definition. We have saved away the text of the function, 3410 but have not yet processed it. */ 3411 #define DECL_PENDING_INLINE_P(NODE) \ 3412 (LANG_DECL_FN_CHECK (NODE)->pending_inline_p) 3413 3414 /* If DECL_PENDING_INLINE_P holds, this is the saved text of the 3415 function. */ 3416 #define DECL_PENDING_INLINE_INFO(NODE) \ 3417 (LANG_DECL_FN_CHECK (NODE)->u.pending_inline_info) 3418 3419 /* Nonzero for TYPE_DECL means that it was written 'using name = type'. */ 3420 #define TYPE_DECL_ALIAS_P(NODE) \ 3421 DECL_LANG_FLAG_6 (TYPE_DECL_CHECK (NODE)) 3422 3423 /* Nonzero for TEMPLATE_DECL means that it is a 'complex' alias template. */ 3424 #define TEMPLATE_DECL_COMPLEX_ALIAS_P(NODE) \ 3425 DECL_LANG_FLAG_2 (TEMPLATE_DECL_CHECK (NODE)) 3426 3427 /* Nonzero for a type which is an alias for another type; i.e, a type 3428 which declaration was written 'using name-of-type = 3429 another-type'. */ 3430 #define TYPE_ALIAS_P(NODE) \ 3431 (TYPE_P (NODE) \ 3432 && TYPE_NAME (NODE) \ 3433 && TREE_CODE (TYPE_NAME (NODE)) == TYPE_DECL \ 3434 && TYPE_DECL_ALIAS_P (TYPE_NAME (NODE))) 3435 3436 /* If non-NULL for a VAR_DECL, FUNCTION_DECL, TYPE_DECL, TEMPLATE_DECL, 3437 or CONCEPT_DECL, the entity is either a template specialization (if 3438 DECL_USE_TEMPLATE is nonzero) or the abstract instance of the 3439 template itself. 3440 3441 In either case, DECL_TEMPLATE_INFO is a TEMPLATE_INFO, whose 3442 TI_TEMPLATE is the TEMPLATE_DECL of which this entity is a 3443 specialization or abstract instance. The TI_ARGS is the 3444 template arguments used to specialize the template. 3445 3446 Consider: 3447 3448 template <typename T> struct S { friend void f(T) {} }; 3449 3450 In this case, S<int>::f is, from the point of view of the compiler, 3451 an instantiation of a template -- but, from the point of view of 3452 the language, each instantiation of S results in a wholly unrelated 3453 global function f. In this case, DECL_TEMPLATE_INFO for S<int>::f 3454 will be non-NULL, but DECL_USE_TEMPLATE will be zero. */ 3455 #define DECL_TEMPLATE_INFO(NODE) \ 3456 (DECL_LANG_SPECIFIC (TEMPLATE_INFO_DECL_CHECK (NODE)) \ 3457 ->u.min.template_info) 3458 3459 /* For a lambda capture proxy, its captured variable. */ 3460 #define DECL_CAPTURED_VARIABLE(NODE) \ 3461 (LANG_DECL_MIN_CHECK (NODE)->access) 3462 3463 /* For a VAR_DECL, indicates that the variable is actually a 3464 non-static data member of anonymous union that has been promoted to 3465 variable status. */ 3466 #define DECL_ANON_UNION_VAR_P(NODE) \ 3467 (DECL_LANG_FLAG_4 (VAR_DECL_CHECK (NODE))) 3468 3469 /* Template information for a RECORD_TYPE or UNION_TYPE. */ 3470 #define CLASSTYPE_TEMPLATE_INFO(NODE) \ 3471 (TYPE_LANG_SLOT_1 (RECORD_OR_UNION_CHECK (NODE))) 3472 3473 /* Template information for a template template parameter. */ 3474 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO(NODE) \ 3475 (TYPE_LANG_SLOT_1 (BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK (NODE))) 3476 3477 /* Template information for an ENUMERAL_, RECORD_, UNION_TYPE, or 3478 BOUND_TEMPLATE_TEMPLATE_PARM type. This ignores any alias 3479 templateness of NODE. It'd be nice if this could unconditionally 3480 access the slot, rather than return NULL if given a 3481 non-templatable type. */ 3482 #define TYPE_TEMPLATE_INFO(NODE) \ 3483 (TREE_CODE (NODE) == ENUMERAL_TYPE \ 3484 || TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM \ 3485 || RECORD_OR_UNION_TYPE_P (NODE) \ 3486 ? TYPE_LANG_SLOT_1 (NODE) : NULL_TREE) 3487 3488 /* Template information (if any) for an alias type. */ 3489 #define TYPE_ALIAS_TEMPLATE_INFO(NODE) \ 3490 (DECL_LANG_SPECIFIC (TYPE_NAME (NODE)) \ 3491 ? DECL_TEMPLATE_INFO (TYPE_NAME (NODE)) \ 3492 : NULL_TREE) 3493 3494 /* If NODE is a type alias, this accessor returns the template info 3495 for the alias template (if any). Otherwise behave as 3496 TYPE_TEMPLATE_INFO. */ 3497 #define TYPE_TEMPLATE_INFO_MAYBE_ALIAS(NODE) \ 3498 (typedef_variant_p (NODE) \ 3499 ? TYPE_ALIAS_TEMPLATE_INFO (NODE) \ 3500 : TYPE_TEMPLATE_INFO (NODE)) 3501 3502 /* Set the template information for an ENUMERAL_, RECORD_, or 3503 UNION_TYPE to VAL. */ 3504 #define SET_TYPE_TEMPLATE_INFO(NODE, VAL) \ 3505 (TREE_CODE (NODE) == ENUMERAL_TYPE \ 3506 || (CLASS_TYPE_P (NODE) && !TYPE_ALIAS_P (NODE)) \ 3507 ? (TYPE_LANG_SLOT_1 (NODE) = (VAL)) \ 3508 : (DECL_TEMPLATE_INFO (TYPE_NAME (NODE)) = (VAL))) 3509 3510 #define TI_TEMPLATE(NODE) \ 3511 ((struct tree_template_info*)TEMPLATE_INFO_CHECK (NODE))->tmpl 3512 #define TI_ARGS(NODE) \ 3513 ((struct tree_template_info*)TEMPLATE_INFO_CHECK (NODE))->args 3514 #define TI_PENDING_TEMPLATE_FLAG(NODE) \ 3515 TREE_LANG_FLAG_1 (TEMPLATE_INFO_CHECK (NODE)) 3516 /* For a given TREE_VEC containing a template argument list, 3517 this property contains the number of arguments that are not 3518 defaulted. */ 3519 #define NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) \ 3520 TREE_CHAIN (TREE_VEC_CHECK (NODE)) 3521 3522 /* Below are the setter and getter of the NON_DEFAULT_TEMPLATE_ARGS_COUNT 3523 property. */ 3524 #define SET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE, INT_VALUE) \ 3525 NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) = build_int_cst (NULL_TREE, INT_VALUE) 3526 #if CHECKING_P 3527 #define GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) \ 3528 int_cst_value (NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE)) 3529 #else 3530 #define GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) \ 3531 NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE) \ 3532 ? int_cst_value (NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE)) \ 3533 : TREE_VEC_LENGTH (INNERMOST_TEMPLATE_ARGS (NODE)) 3534 #endif 3535 /* The list of typedefs - used in the template - that need 3536 access checking at template instantiation time. 3537 3538 FIXME this should be associated with the TEMPLATE_DECL, not the 3539 TEMPLATE_INFO. */ 3540 #define TI_TYPEDEFS_NEEDING_ACCESS_CHECKING(NODE) \ 3541 ((struct tree_template_info*)TEMPLATE_INFO_CHECK \ 3542 (NODE))->typedefs_needing_access_checking 3543 3544 /* We use TREE_VECs to hold template arguments. If there is only one 3545 level of template arguments, then the TREE_VEC contains the 3546 arguments directly. If there is more than one level of template 3547 arguments, then each entry in the TREE_VEC is itself a TREE_VEC, 3548 containing the template arguments for a single level. The first 3549 entry in the outer TREE_VEC is the outermost level of template 3550 parameters; the last is the innermost. 3551 3552 It is incorrect to ever form a template argument vector containing 3553 only one level of arguments, but which is a TREE_VEC containing as 3554 its only entry the TREE_VEC for that level. 3555 3556 For each TREE_VEC containing the template arguments for a single 3557 level, it's possible to get or set the number of non defaulted 3558 template arguments by using the accessor macros 3559 GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT or 3560 SET_NON_DEFAULT_TEMPLATE_ARGS_COUNT. */ 3561 3562 /* Nonzero if the template arguments is actually a vector of vectors, 3563 rather than just a vector. */ 3564 #define TMPL_ARGS_HAVE_MULTIPLE_LEVELS(NODE) \ 3565 (NODE && TREE_VEC_LENGTH (NODE) && TREE_VEC_ELT (NODE, 0) \ 3566 && TREE_CODE (TREE_VEC_ELT (NODE, 0)) == TREE_VEC) 3567 3568 /* The depth of a template argument vector. When called directly by 3569 the parser, we use a TREE_LIST rather than a TREE_VEC to represent 3570 template arguments. In fact, we may even see NULL_TREE if there 3571 are no template arguments. In both of those cases, there is only 3572 one level of template arguments. */ 3573 #define TMPL_ARGS_DEPTH(NODE) \ 3574 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (NODE) ? TREE_VEC_LENGTH (NODE) : 1) 3575 3576 /* The LEVELth level of the template ARGS. The outermost level of 3577 args is level 1, not level 0. */ 3578 #define TMPL_ARGS_LEVEL(ARGS, LEVEL) \ 3579 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (ARGS) \ 3580 ? TREE_VEC_ELT (ARGS, (LEVEL) - 1) : (ARGS)) 3581 3582 /* Set the LEVELth level of the template ARGS to VAL. This macro does 3583 not work with single-level argument vectors. */ 3584 #define SET_TMPL_ARGS_LEVEL(ARGS, LEVEL, VAL) \ 3585 (TREE_VEC_ELT (ARGS, (LEVEL) - 1) = (VAL)) 3586 3587 /* Accesses the IDXth parameter in the LEVELth level of the ARGS. */ 3588 #define TMPL_ARG(ARGS, LEVEL, IDX) \ 3589 (TREE_VEC_ELT (TMPL_ARGS_LEVEL (ARGS, LEVEL), IDX)) 3590 3591 /* Given a single level of template arguments in NODE, return the 3592 number of arguments. */ 3593 #define NUM_TMPL_ARGS(NODE) \ 3594 (TREE_VEC_LENGTH (NODE)) 3595 3596 /* Returns the innermost level of template arguments in ARGS. */ 3597 #define INNERMOST_TEMPLATE_ARGS(NODE) \ 3598 (get_innermost_template_args ((NODE), 1)) 3599 3600 /* The number of levels of template parameters given by NODE. */ 3601 #define TMPL_PARMS_DEPTH(NODE) \ 3602 ((HOST_WIDE_INT) TREE_INT_CST_LOW (TREE_PURPOSE (NODE))) 3603 3604 /* The TEMPLATE_DECL instantiated or specialized by NODE. This 3605 TEMPLATE_DECL will be the immediate parent, not the most general 3606 template. For example, in: 3607 3608 template <class T> struct S { template <class U> void f(U); } 3609 3610 the FUNCTION_DECL for S<int>::f<double> will have, as its 3611 DECL_TI_TEMPLATE, `template <class U> S<int>::f<U>'. 3612 3613 As a special case, for a member friend template of a template 3614 class, this value will not be a TEMPLATE_DECL, but rather an 3615 IDENTIFIER_NODE or OVERLOAD indicating the name of the template and 3616 any explicit template arguments provided. For example, in: 3617 3618 template <class T> struct S { friend void f<int>(int, double); } 3619 3620 the DECL_TI_TEMPLATE will be an IDENTIFIER_NODE for `f' and the 3621 DECL_TI_ARGS will be {int}. 3622 3623 For a FIELD_DECL with a non-static data member initializer, this value 3624 is the FIELD_DECL it was instantiated from. */ 3625 #define DECL_TI_TEMPLATE(NODE) TI_TEMPLATE (DECL_TEMPLATE_INFO (NODE)) 3626 3627 /* The template arguments used to obtain this decl from the most 3628 general form of DECL_TI_TEMPLATE. For the example given for 3629 DECL_TI_TEMPLATE, the DECL_TI_ARGS will be {int, double}. These 3630 are always the full set of arguments required to instantiate this 3631 declaration from the most general template specialized here. */ 3632 #define DECL_TI_ARGS(NODE) TI_ARGS (DECL_TEMPLATE_INFO (NODE)) 3633 3634 /* The TEMPLATE_DECL associated with NODE, a class type. Even if NODE 3635 will be generated from a partial specialization, the TEMPLATE_DECL 3636 referred to here will be the original template. For example, 3637 given: 3638 3639 template <typename T> struct S {}; 3640 template <typename T> struct S<T*> {}; 3641 3642 the CLASSTPYE_TI_TEMPLATE for S<int*> will be S, not the S<T*>. 3643 3644 For a member class template, CLASSTYPE_TI_TEMPLATE always refers to the 3645 partial instantiation rather than the primary template. CLASSTYPE_TI_ARGS 3646 are for the primary template if the partial instantiation isn't 3647 specialized, or for the explicit specialization if it is, e.g. 3648 3649 template <class T> class C { template <class U> class D; } 3650 template <> template <class U> class C<int>::D; */ 3651 #define CLASSTYPE_TI_TEMPLATE(NODE) TI_TEMPLATE (CLASSTYPE_TEMPLATE_INFO (NODE)) 3652 #define CLASSTYPE_TI_ARGS(NODE) TI_ARGS (CLASSTYPE_TEMPLATE_INFO (NODE)) 3653 3654 /* For a template instantiation TYPE, returns the TYPE corresponding 3655 to the primary template. Otherwise returns TYPE itself. */ 3656 #define CLASSTYPE_PRIMARY_TEMPLATE_TYPE(TYPE) \ 3657 ((CLASSTYPE_USE_TEMPLATE ((TYPE)) \ 3658 && !CLASSTYPE_TEMPLATE_SPECIALIZATION ((TYPE))) \ 3659 ? TREE_TYPE (DECL_TEMPLATE_RESULT (DECL_PRIMARY_TEMPLATE \ 3660 (CLASSTYPE_TI_TEMPLATE ((TYPE))))) \ 3661 : (TYPE)) 3662 3663 /* Like CLASS_TI_TEMPLATE, but also works for ENUMERAL_TYPEs. */ 3664 #define TYPE_TI_TEMPLATE(NODE) \ 3665 (TI_TEMPLATE (TYPE_TEMPLATE_INFO (NODE))) 3666 3667 /* Like DECL_TI_ARGS, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */ 3668 #define TYPE_TI_ARGS(NODE) \ 3669 (TI_ARGS (TYPE_TEMPLATE_INFO (NODE))) 3670 3671 #define INNERMOST_TEMPLATE_PARMS(NODE) TREE_VALUE (NODE) 3672 3673 /* Nonzero if NODE (a TEMPLATE_DECL) is a member template, in the 3674 sense of [temp.mem]. */ 3675 #define DECL_MEMBER_TEMPLATE_P(NODE) \ 3676 (DECL_LANG_FLAG_1 (TEMPLATE_DECL_CHECK (NODE))) 3677 3678 /* Nonzero if the NODE corresponds to the template parameters for a 3679 member template, whose inline definition is being processed after 3680 the class definition is complete. */ 3681 #define TEMPLATE_PARMS_FOR_INLINE(NODE) TREE_LANG_FLAG_1 (NODE) 3682 3683 /* Determine if a declaration (PARM_DECL or FIELD_DECL) is a pack. */ 3684 #define DECL_PACK_P(NODE) \ 3685 (DECL_P (NODE) && PACK_EXPANSION_P (TREE_TYPE (NODE))) 3686 3687 /* Determines if NODE is an expansion of one or more parameter packs, 3688 e.g., a TYPE_PACK_EXPANSION or EXPR_PACK_EXPANSION. */ 3689 #define PACK_EXPANSION_P(NODE) \ 3690 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION \ 3691 || TREE_CODE (NODE) == EXPR_PACK_EXPANSION) 3692 3693 /* Extracts the type or expression pattern from a TYPE_PACK_EXPANSION or 3694 EXPR_PACK_EXPANSION. */ 3695 #define PACK_EXPANSION_PATTERN(NODE) \ 3696 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION ? TREE_TYPE (NODE) \ 3697 : TREE_OPERAND (NODE, 0)) 3698 3699 /* Sets the type or expression pattern for a TYPE_PACK_EXPANSION or 3700 EXPR_PACK_EXPANSION. */ 3701 #define SET_PACK_EXPANSION_PATTERN(NODE,VALUE) \ 3702 if (TREE_CODE (NODE) == TYPE_PACK_EXPANSION) \ 3703 TREE_TYPE (NODE) = VALUE; \ 3704 else \ 3705 TREE_OPERAND (NODE, 0) = VALUE 3706 3707 /* The list of parameter packs used in the PACK_EXPANSION_* node. The 3708 TREE_VALUE of each TREE_LIST contains the parameter packs. */ 3709 #define PACK_EXPANSION_PARAMETER_PACKS(NODE) \ 3710 *(TREE_CODE (NODE) == EXPR_PACK_EXPANSION \ 3711 ? &TREE_OPERAND (NODE, 1) \ 3712 : &TYPE_MIN_VALUE_RAW (TYPE_PACK_EXPANSION_CHECK (NODE))) 3713 3714 /* Any additional template args to be applied when substituting into 3715 the pattern, set by tsubst_pack_expansion for partial instantiations. 3716 If this is a TREE_LIST, the TREE_VALUE of the first element is the 3717 usual template argument TREE_VEC, and the TREE_PURPOSE of later elements 3718 are enclosing functions that provided function parameter packs we'll need 3719 to map appropriately. */ 3720 #define PACK_EXPANSION_EXTRA_ARGS(NODE) \ 3721 *(TREE_CODE (NODE) == TYPE_PACK_EXPANSION \ 3722 ? &TYPE_MAX_VALUE_RAW (NODE) \ 3723 : &TREE_OPERAND ((NODE), 2)) 3724 3725 /* True iff this pack expansion is within a function context. */ 3726 #define PACK_EXPANSION_LOCAL_P(NODE) TREE_LANG_FLAG_0 (NODE) 3727 3728 /* True iff this pack expansion is for sizeof.... */ 3729 #define PACK_EXPANSION_SIZEOF_P(NODE) TREE_LANG_FLAG_1 (NODE) 3730 3731 /* True iff the wildcard can match a template parameter pack. */ 3732 #define WILDCARD_PACK_P(NODE) TREE_LANG_FLAG_0 (NODE) 3733 3734 /* Determine if this is an argument pack. */ 3735 #define ARGUMENT_PACK_P(NODE) \ 3736 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK \ 3737 || TREE_CODE (NODE) == NONTYPE_ARGUMENT_PACK) 3738 3739 /* The arguments stored in an argument pack. Arguments are stored in a 3740 TREE_VEC, which may have length zero. */ 3741 #define ARGUMENT_PACK_ARGS(NODE) \ 3742 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK? TREE_TYPE (NODE) \ 3743 : TREE_OPERAND (NODE, 0)) 3744 3745 /* Set the arguments stored in an argument pack. VALUE must be a 3746 TREE_VEC. */ 3747 #define SET_ARGUMENT_PACK_ARGS(NODE,VALUE) \ 3748 if (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK) \ 3749 TREE_TYPE (NODE) = VALUE; \ 3750 else \ 3751 TREE_OPERAND (NODE, 0) = VALUE 3752 3753 /* Whether the argument pack is "incomplete", meaning that more 3754 arguments can still be deduced. Incomplete argument packs are only 3755 used when the user has provided an explicit template argument list 3756 for a variadic function template. Some of the explicit template 3757 arguments will be placed into the beginning of the argument pack, 3758 but additional arguments might still be deduced. */ 3759 #define ARGUMENT_PACK_INCOMPLETE_P(NODE) \ 3760 TREE_ADDRESSABLE (ARGUMENT_PACK_ARGS (NODE)) 3761 3762 /* When ARGUMENT_PACK_INCOMPLETE_P, stores the explicit template 3763 arguments used to fill this pack. */ 3764 #define ARGUMENT_PACK_EXPLICIT_ARGS(NODE) \ 3765 TREE_TYPE (ARGUMENT_PACK_ARGS (NODE)) 3766 3767 /* In an ARGUMENT_PACK_SELECT, the argument pack from which an 3768 argument will be selected. */ 3769 #define ARGUMENT_PACK_SELECT_FROM_PACK(NODE) \ 3770 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->argument_pack) 3771 3772 /* In an ARGUMENT_PACK_SELECT, the index of the argument we want to 3773 select. */ 3774 #define ARGUMENT_PACK_SELECT_INDEX(NODE) \ 3775 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->index) 3776 3777 #define FOLD_EXPR_CHECK(NODE) \ 3778 TREE_CHECK4 (NODE, UNARY_LEFT_FOLD_EXPR, UNARY_RIGHT_FOLD_EXPR, \ 3779 BINARY_LEFT_FOLD_EXPR, BINARY_RIGHT_FOLD_EXPR) 3780 3781 #define BINARY_FOLD_EXPR_CHECK(NODE) \ 3782 TREE_CHECK2 (NODE, BINARY_LEFT_FOLD_EXPR, BINARY_RIGHT_FOLD_EXPR) 3783 3784 /* True if NODE is UNARY_FOLD_EXPR or a BINARY_FOLD_EXPR */ 3785 #define FOLD_EXPR_P(NODE) \ 3786 (TREE_CODE (NODE) == UNARY_LEFT_FOLD_EXPR \ 3787 || TREE_CODE (NODE) == UNARY_RIGHT_FOLD_EXPR \ 3788 || TREE_CODE (NODE) == BINARY_LEFT_FOLD_EXPR \ 3789 || TREE_CODE (NODE) == BINARY_RIGHT_FOLD_EXPR) 3790 3791 /* True when NODE is a fold over a compound assignment operator. */ 3792 #define FOLD_EXPR_MODIFY_P(NODE) \ 3793 TREE_LANG_FLAG_0 (FOLD_EXPR_CHECK (NODE)) 3794 3795 /* An INTEGER_CST containing the tree code of the folded operator. */ 3796 #define FOLD_EXPR_OP(NODE) \ 3797 TREE_OPERAND (FOLD_EXPR_CHECK (NODE), 0) 3798 3799 /* The expression containing an unexpanded parameter pack. */ 3800 #define FOLD_EXPR_PACK(NODE) \ 3801 TREE_OPERAND (FOLD_EXPR_CHECK (NODE), 1) 3802 3803 /* In a binary fold expression, the argument with no unexpanded 3804 parameter packs. */ 3805 #define FOLD_EXPR_INIT(NODE) \ 3806 TREE_OPERAND (BINARY_FOLD_EXPR_CHECK (NODE), 2) 3807 3808 /* In a FUNCTION_DECL, the saved auto-return pattern. */ 3809 #define DECL_SAVED_AUTO_RETURN_TYPE(NODE) \ 3810 (LANG_DECL_FN_CHECK (FUNCTION_DECL_CHECK (NODE)) \ 3811 ->u.saved_auto_return_type) 3812 3813 /* True if NODE is an implicit INDIRECT_REF from convert_from_reference. */ 3814 #define REFERENCE_REF_P(NODE) \ 3815 (INDIRECT_REF_P (NODE) \ 3816 && TREE_TYPE (TREE_OPERAND (NODE, 0)) \ 3817 && TYPE_REF_P (TREE_TYPE (TREE_OPERAND ((NODE), 0)))) 3818 3819 #define NEW_EXPR_USE_GLOBAL(NODE) \ 3820 TREE_LANG_FLAG_0 (NEW_EXPR_CHECK (NODE)) 3821 #define DELETE_EXPR_USE_GLOBAL(NODE) \ 3822 TREE_LANG_FLAG_0 (DELETE_EXPR_CHECK (NODE)) 3823 #define DELETE_EXPR_USE_VEC(NODE) \ 3824 TREE_LANG_FLAG_1 (DELETE_EXPR_CHECK (NODE)) 3825 3826 #define CALL_OR_AGGR_INIT_CHECK(NODE) \ 3827 TREE_CHECK2 ((NODE), CALL_EXPR, AGGR_INIT_EXPR) 3828 3829 /* Indicates that this is a non-dependent COMPOUND_EXPR which will 3830 resolve to a function call. */ 3831 #define COMPOUND_EXPR_OVERLOADED(NODE) \ 3832 TREE_LANG_FLAG_0 (COMPOUND_EXPR_CHECK (NODE)) 3833 3834 /* In a CALL_EXPR appearing in a template, true if Koenig lookup 3835 should be performed at instantiation time. */ 3836 #define KOENIG_LOOKUP_P(NODE) TREE_LANG_FLAG_0 (CALL_EXPR_CHECK (NODE)) 3837 3838 /* In a CALL_EXPR, true for allocator calls from new or delete 3839 expressions. */ 3840 #define CALL_FROM_NEW_OR_DELETE_P(NODE) \ 3841 TREE_LANG_FLAG_2 (CALL_EXPR_CHECK (NODE)) 3842 3843 /* True if the arguments to NODE should be evaluated in left-to-right 3844 order regardless of PUSH_ARGS_REVERSED. */ 3845 #define CALL_EXPR_ORDERED_ARGS(NODE) \ 3846 TREE_LANG_FLAG_3 (CALL_OR_AGGR_INIT_CHECK (NODE)) 3847 3848 /* True if the arguments to NODE should be evaluated in right-to-left 3849 order regardless of PUSH_ARGS_REVERSED. */ 3850 #define CALL_EXPR_REVERSE_ARGS(NODE) \ 3851 TREE_LANG_FLAG_5 (CALL_OR_AGGR_INIT_CHECK (NODE)) 3852 3853 /* True if CALL_EXPR was written as an operator expression, not a function 3854 call. */ 3855 #define CALL_EXPR_OPERATOR_SYNTAX(NODE) \ 3856 TREE_LANG_FLAG_6 (CALL_OR_AGGR_INIT_CHECK (NODE)) 3857 3858 /* Indicates whether a string literal has been parenthesized. Such 3859 usages are disallowed in certain circumstances. */ 3860 3861 #define PAREN_STRING_LITERAL_P(NODE) \ 3862 TREE_LANG_FLAG_0 (STRING_CST_CHECK (NODE)) 3863 3864 /* Indicates whether a COMPONENT_REF or a SCOPE_REF has been parenthesized, or 3865 an INDIRECT_REF comes from parenthesizing a _DECL. Currently only set some 3866 of the time in C++14 mode. */ 3867 3868 #define REF_PARENTHESIZED_P(NODE) \ 3869 TREE_LANG_FLAG_2 (TREE_CHECK4 ((NODE), COMPONENT_REF, INDIRECT_REF, SCOPE_REF, VIEW_CONVERT_EXPR)) 3870 3871 /* Nonzero if this AGGR_INIT_EXPR provides for initialization via a 3872 constructor call, rather than an ordinary function call. */ 3873 #define AGGR_INIT_VIA_CTOR_P(NODE) \ 3874 TREE_LANG_FLAG_0 (AGGR_INIT_EXPR_CHECK (NODE)) 3875 3876 /* Nonzero if expanding this AGGR_INIT_EXPR should first zero-initialize 3877 the object. */ 3878 #define AGGR_INIT_ZERO_FIRST(NODE) \ 3879 TREE_LANG_FLAG_2 (AGGR_INIT_EXPR_CHECK (NODE)) 3880 3881 /* Nonzero means that the call is the jump from a thunk to the 3882 thunked-to function. */ 3883 #define AGGR_INIT_FROM_THUNK_P(NODE) \ 3884 (AGGR_INIT_EXPR_CHECK (NODE)->base.protected_flag) 3885 3886 /* AGGR_INIT_EXPR accessors. These are equivalent to the CALL_EXPR 3887 accessors, except for AGGR_INIT_EXPR_SLOT (which takes the place of 3888 CALL_EXPR_STATIC_CHAIN). */ 3889 3890 #define AGGR_INIT_EXPR_FN(NODE) TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 1) 3891 #define AGGR_INIT_EXPR_SLOT(NODE) \ 3892 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 2) 3893 #define AGGR_INIT_EXPR_ARG(NODE, I) \ 3894 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), (I) + 3) 3895 #define aggr_init_expr_nargs(NODE) (VL_EXP_OPERAND_LENGTH(NODE) - 3) 3896 3897 /* AGGR_INIT_EXPR_ARGP returns a pointer to the argument vector for NODE. 3898 We can't use &AGGR_INIT_EXPR_ARG (NODE, 0) because that will complain if 3899 the argument count is zero when checking is enabled. Instead, do 3900 the pointer arithmetic to advance past the 3 fixed operands in a 3901 AGGR_INIT_EXPR. That produces a valid pointer to just past the end of 3902 the operand array, even if it's not valid to dereference it. */ 3903 #define AGGR_INIT_EXPR_ARGP(NODE) \ 3904 (&(TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 0)) + 3) 3905 3906 /* Abstract iterators for AGGR_INIT_EXPRs. */ 3907 3908 /* Structure containing iterator state. */ 3909 struct aggr_init_expr_arg_iterator { 3910 tree t; /* the aggr_init_expr */ 3911 int n; /* argument count */ 3912 int i; /* next argument index */ 3913 }; 3914 3915 /* Initialize the abstract argument list iterator object ITER with the 3916 arguments from AGGR_INIT_EXPR node EXP. */ 3917 inline void 3918 init_aggr_init_expr_arg_iterator (tree exp, 3919 aggr_init_expr_arg_iterator *iter) 3920 { 3921 iter->t = exp; 3922 iter->n = aggr_init_expr_nargs (exp); 3923 iter->i = 0; 3924 } 3925 3926 /* Return the next argument from abstract argument list iterator object ITER, 3927 and advance its state. Return NULL_TREE if there are no more arguments. */ 3928 inline tree 3929 next_aggr_init_expr_arg (aggr_init_expr_arg_iterator *iter) 3930 { 3931 tree result; 3932 if (iter->i >= iter->n) 3933 return NULL_TREE; 3934 result = AGGR_INIT_EXPR_ARG (iter->t, iter->i); 3935 iter->i++; 3936 return result; 3937 } 3938 3939 /* Initialize the abstract argument list iterator object ITER, then advance 3940 past and return the first argument. Useful in for expressions, e.g. 3941 for (arg = first_aggr_init_expr_arg (exp, &iter); arg; 3942 arg = next_aggr_init_expr_arg (&iter)) */ 3943 inline tree 3944 first_aggr_init_expr_arg (tree exp, aggr_init_expr_arg_iterator *iter) 3945 { 3946 init_aggr_init_expr_arg_iterator (exp, iter); 3947 return next_aggr_init_expr_arg (iter); 3948 } 3949 3950 /* Test whether there are more arguments in abstract argument list iterator 3951 ITER, without changing its state. */ 3952 inline bool 3953 more_aggr_init_expr_args_p (const aggr_init_expr_arg_iterator *iter) 3954 { 3955 return (iter->i < iter->n); 3956 } 3957 3958 /* Iterate through each argument ARG of AGGR_INIT_EXPR CALL, using variable 3959 ITER (of type aggr_init_expr_arg_iterator) to hold the iteration state. */ 3960 #define FOR_EACH_AGGR_INIT_EXPR_ARG(arg, iter, call) \ 3961 for ((arg) = first_aggr_init_expr_arg ((call), &(iter)); (arg); \ 3962 (arg) = next_aggr_init_expr_arg (&(iter))) 3963 3964 /* VEC_INIT_EXPR accessors. */ 3965 #define VEC_INIT_EXPR_SLOT(NODE) TREE_OPERAND (VEC_INIT_EXPR_CHECK (NODE), 0) 3966 #define VEC_INIT_EXPR_INIT(NODE) TREE_OPERAND (VEC_INIT_EXPR_CHECK (NODE), 1) 3967 3968 /* Indicates that a VEC_INIT_EXPR is a potential constant expression. 3969 Only set when the current function is constexpr. */ 3970 #define VEC_INIT_EXPR_IS_CONSTEXPR(NODE) \ 3971 TREE_LANG_FLAG_0 (VEC_INIT_EXPR_CHECK (NODE)) 3972 3973 /* Indicates that a VEC_INIT_EXPR is expressing value-initialization. */ 3974 #define VEC_INIT_EXPR_VALUE_INIT(NODE) \ 3975 TREE_LANG_FLAG_1 (VEC_INIT_EXPR_CHECK (NODE)) 3976 3977 /* The condition under which this MUST_NOT_THROW_EXPR actually blocks 3978 exceptions. NULL_TREE means 'true'. */ 3979 #define MUST_NOT_THROW_COND(NODE) \ 3980 TREE_OPERAND (MUST_NOT_THROW_EXPR_CHECK (NODE), 1) 3981 3982 /* The TYPE_MAIN_DECL for a class template type is a TYPE_DECL, not a 3983 TEMPLATE_DECL. This macro determines whether or not a given class 3984 type is really a template type, as opposed to an instantiation or 3985 specialization of one. */ 3986 #define CLASSTYPE_IS_TEMPLATE(NODE) \ 3987 (CLASSTYPE_TEMPLATE_INFO (NODE) \ 3988 && !CLASSTYPE_USE_TEMPLATE (NODE) \ 3989 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE))) 3990 3991 /* The name used by the user to name the typename type. Typically, 3992 this is an IDENTIFIER_NODE, and the same as the DECL_NAME on the 3993 corresponding TYPE_DECL. However, this may also be a 3994 TEMPLATE_ID_EXPR if we had something like `typename X::Y<T>'. */ 3995 #define TYPENAME_TYPE_FULLNAME(NODE) \ 3996 (TYPE_VALUES_RAW (TYPENAME_TYPE_CHECK (NODE))) 3997 3998 /* True if a TYPENAME_TYPE was declared as an "enum". */ 3999 #define TYPENAME_IS_ENUM_P(NODE) \ 4000 (TREE_LANG_FLAG_0 (TYPENAME_TYPE_CHECK (NODE))) 4001 4002 /* True if a TYPENAME_TYPE was declared as a "class", "struct", or 4003 "union". */ 4004 #define TYPENAME_IS_CLASS_P(NODE) \ 4005 (TREE_LANG_FLAG_1 (TYPENAME_TYPE_CHECK (NODE))) 4006 4007 /* True if a TYPENAME_TYPE is in the process of being resolved. */ 4008 #define TYPENAME_IS_RESOLVING_P(NODE) \ 4009 (TREE_LANG_FLAG_2 (TYPENAME_TYPE_CHECK (NODE))) 4010 4011 /* [class.virtual] 4012 4013 A class that declares or inherits a virtual function is called a 4014 polymorphic class. */ 4015 #define TYPE_POLYMORPHIC_P(NODE) (TREE_LANG_FLAG_2 (NODE)) 4016 4017 /* Nonzero if this class has a virtual function table pointer. */ 4018 #define TYPE_CONTAINS_VPTR_P(NODE) \ 4019 (TYPE_POLYMORPHIC_P (NODE) || CLASSTYPE_VBASECLASSES (NODE)) 4020 4021 /* Nonzero if NODE is a FUNCTION_DECL (for a function with global 4022 scope) declared in a local scope. */ 4023 #define DECL_LOCAL_FUNCTION_P(NODE) \ 4024 DECL_LANG_FLAG_0 (FUNCTION_DECL_CHECK (NODE)) 4025 4026 /* Nonzero if NODE is the target for genericization of 'break' stmts. */ 4027 #define LABEL_DECL_BREAK(NODE) \ 4028 DECL_LANG_FLAG_0 (LABEL_DECL_CHECK (NODE)) 4029 4030 /* Nonzero if NODE is the target for genericization of 'continue' stmts. */ 4031 #define LABEL_DECL_CONTINUE(NODE) \ 4032 DECL_LANG_FLAG_1 (LABEL_DECL_CHECK (NODE)) 4033 4034 /* Nonzero if NODE is the target for genericization of 'return' stmts 4035 in constructors/destructors of targetm.cxx.cdtor_returns_this targets. */ 4036 #define LABEL_DECL_CDTOR(NODE) \ 4037 DECL_LANG_FLAG_2 (LABEL_DECL_CHECK (NODE)) 4038 4039 /* True if NODE was declared with auto in its return type, but it has 4040 started compilation and so the return type might have been changed by 4041 return type deduction; its declared return type should be found in 4042 DECL_SAVED_AUTO_RETURN_TYPE (NODE). */ 4043 #define FNDECL_USED_AUTO(NODE) \ 4044 TREE_LANG_FLAG_2 (FUNCTION_DECL_CHECK (NODE)) 4045 4046 /* Nonzero if NODE is a DECL which we know about but which has not 4047 been explicitly declared, such as a built-in function or a friend 4048 declared inside a class. In the latter case DECL_HIDDEN_FRIEND_P 4049 will be set. */ 4050 #define DECL_ANTICIPATED(NODE) \ 4051 (DECL_LANG_SPECIFIC (TYPE_FUNCTION_OR_TEMPLATE_DECL_CHECK (NODE)) \ 4052 ->u.base.anticipated_p) 4053 4054 /* Is DECL NODE a hidden name? */ 4055 #define DECL_HIDDEN_P(NODE) \ 4056 (DECL_LANG_SPECIFIC (NODE) && TYPE_FUNCTION_OR_TEMPLATE_DECL_P (NODE) \ 4057 && DECL_ANTICIPATED (NODE)) 4058 4059 /* True if this is a hidden class type. */ 4060 #define TYPE_HIDDEN_P(NODE) \ 4061 (DECL_LANG_SPECIFIC (TYPE_NAME (NODE)) \ 4062 && DECL_ANTICIPATED (TYPE_NAME (NODE))) 4063 4064 /* True for artificial decls added for OpenMP privatized non-static 4065 data members. */ 4066 #define DECL_OMP_PRIVATIZED_MEMBER(NODE) \ 4067 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))->u.base.anticipated_p) 4068 4069 /* Nonzero if NODE is a FUNCTION_DECL which was declared as a friend 4070 within a class but has not been declared in the surrounding scope. 4071 The function is invisible except via argument dependent lookup. */ 4072 #define DECL_HIDDEN_FRIEND_P(NODE) \ 4073 (LANG_DECL_FN_CHECK (DECL_COMMON_CHECK (NODE))->hidden_friend_p) 4074 4075 /* Nonzero if NODE is an artificial FUNCTION_DECL for 4076 #pragma omp declare reduction. */ 4077 #define DECL_OMP_DECLARE_REDUCTION_P(NODE) \ 4078 (LANG_DECL_FN_CHECK (DECL_COMMON_CHECK (NODE))->omp_declare_reduction_p) 4079 4080 /* Nonzero if DECL has been declared threadprivate by 4081 #pragma omp threadprivate. */ 4082 #define CP_DECL_THREADPRIVATE_P(DECL) \ 4083 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (DECL))->u.base.threadprivate_or_deleted_p) 4084 4085 /* Nonzero if NODE is a VAR_DECL which has been declared inline. */ 4086 #define DECL_VAR_DECLARED_INLINE_P(NODE) \ 4087 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE)) \ 4088 ? DECL_LANG_SPECIFIC (NODE)->u.base.var_declared_inline_p \ 4089 : false) 4090 #define SET_DECL_VAR_DECLARED_INLINE_P(NODE) \ 4091 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))->u.base.var_declared_inline_p \ 4092 = true) 4093 4094 /* True if NODE is a constant variable with a value-dependent initializer. */ 4095 #define DECL_DEPENDENT_INIT_P(NODE) \ 4096 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE)) \ 4097 && DECL_LANG_SPECIFIC (NODE)->u.base.dependent_init_p) 4098 #define SET_DECL_DEPENDENT_INIT_P(NODE, X) \ 4099 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))->u.base.dependent_init_p = (X)) 4100 4101 /* Nonzero if NODE is an artificial VAR_DECL for a C++17 structured binding 4102 declaration or one of VAR_DECLs for the user identifiers in it. */ 4103 #define DECL_DECOMPOSITION_P(NODE) \ 4104 (VAR_P (NODE) && DECL_LANG_SPECIFIC (NODE) \ 4105 ? DECL_LANG_SPECIFIC (NODE)->u.base.selector == lds_decomp \ 4106 : false) 4107 4108 /* The underlying artificial VAR_DECL for structured binding. */ 4109 #define DECL_DECOMP_BASE(NODE) \ 4110 (LANG_DECL_DECOMP_CHECK (NODE)->base) 4111 4112 /* Nonzero if NODE is an inline VAR_DECL. In C++17, static data members 4113 declared with constexpr specifier are implicitly inline variables. */ 4114 #define DECL_INLINE_VAR_P(NODE) \ 4115 (DECL_VAR_DECLARED_INLINE_P (NODE) \ 4116 || (cxx_dialect >= cxx17 \ 4117 && DECL_DECLARED_CONSTEXPR_P (NODE) \ 4118 && DECL_CLASS_SCOPE_P (NODE))) 4119 4120 /* Nonzero if DECL was declared with '= delete'. */ 4121 #define DECL_DELETED_FN(DECL) \ 4122 (LANG_DECL_FN_CHECK (DECL)->min.base.threadprivate_or_deleted_p) 4123 4124 /* Nonzero if DECL was declared with '= default' (maybe implicitly). */ 4125 #define DECL_DEFAULTED_FN(DECL) \ 4126 (LANG_DECL_FN_CHECK (DECL)->defaulted_p) 4127 4128 /* Nonzero if DECL is explicitly defaulted in the class body. */ 4129 #define DECL_DEFAULTED_IN_CLASS_P(DECL) \ 4130 (DECL_DEFAULTED_FN (DECL) && DECL_INITIALIZED_IN_CLASS_P (DECL)) 4131 /* Nonzero if DECL was defaulted outside the class body. */ 4132 #define DECL_DEFAULTED_OUTSIDE_CLASS_P(DECL) \ 4133 (DECL_DEFAULTED_FN (DECL) \ 4134 && !(DECL_ARTIFICIAL (DECL) || DECL_INITIALIZED_IN_CLASS_P (DECL))) 4135 4136 /* Record whether a typedef for type `int' was actually `signed int'. */ 4137 #define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP) 4138 4139 /* Returns nonzero if DECL has external linkage, as specified by the 4140 language standard. (This predicate may hold even when the 4141 corresponding entity is not actually given external linkage in the 4142 object file; see decl_linkage for details.) */ 4143 #define DECL_EXTERNAL_LINKAGE_P(DECL) \ 4144 (decl_linkage (DECL) == lk_external) 4145 4146 /* Keep these codes in ascending code order. */ 4147 4148 #define INTEGRAL_CODE_P(CODE) \ 4149 ((CODE) == ENUMERAL_TYPE \ 4150 || (CODE) == BOOLEAN_TYPE \ 4151 || (CODE) == INTEGER_TYPE) 4152 4153 /* [basic.fundamental] 4154 4155 Types bool, char, wchar_t, and the signed and unsigned integer types 4156 are collectively called integral types. 4157 4158 Note that INTEGRAL_TYPE_P, as defined in tree.h, allows enumeration 4159 types as well, which is incorrect in C++. Keep these checks in 4160 ascending code order. */ 4161 #define CP_INTEGRAL_TYPE_P(TYPE) \ 4162 (TREE_CODE (TYPE) == BOOLEAN_TYPE \ 4163 || TREE_CODE (TYPE) == INTEGER_TYPE) 4164 4165 /* Returns true if TYPE is an integral or enumeration name. Keep 4166 these checks in ascending code order. */ 4167 #define INTEGRAL_OR_ENUMERATION_TYPE_P(TYPE) \ 4168 (TREE_CODE (TYPE) == ENUMERAL_TYPE || CP_INTEGRAL_TYPE_P (TYPE)) 4169 4170 /* Returns true if TYPE is an integral or unscoped enumeration type. */ 4171 #define INTEGRAL_OR_UNSCOPED_ENUMERATION_TYPE_P(TYPE) \ 4172 (UNSCOPED_ENUM_P (TYPE) || CP_INTEGRAL_TYPE_P (TYPE)) 4173 4174 /* True if the class type TYPE is a literal type. */ 4175 #define CLASSTYPE_LITERAL_P(TYPE) \ 4176 (LANG_TYPE_CLASS_CHECK (TYPE)->is_literal) 4177 4178 /* [basic.fundamental] 4179 4180 Integral and floating types are collectively called arithmetic 4181 types. 4182 4183 As a GNU extension, we also accept complex types. 4184 4185 Keep these checks in ascending code order. */ 4186 #define ARITHMETIC_TYPE_P(TYPE) \ 4187 (CP_INTEGRAL_TYPE_P (TYPE) \ 4188 || TREE_CODE (TYPE) == REAL_TYPE \ 4189 || TREE_CODE (TYPE) == COMPLEX_TYPE) 4190 4191 /* True iff TYPE is cv decltype(nullptr). */ 4192 #define NULLPTR_TYPE_P(TYPE) (TREE_CODE (TYPE) == NULLPTR_TYPE) 4193 4194 /* [basic.types] 4195 4196 Arithmetic types, enumeration types, pointer types, 4197 pointer-to-member types, and std::nullptr_t are collectively called 4198 scalar types. 4199 4200 Keep these checks in ascending code order. */ 4201 #define SCALAR_TYPE_P(TYPE) \ 4202 (TYPE_PTRDATAMEM_P (TYPE) \ 4203 || TREE_CODE (TYPE) == ENUMERAL_TYPE \ 4204 || ARITHMETIC_TYPE_P (TYPE) \ 4205 || TYPE_PTR_P (TYPE) \ 4206 || TYPE_PTRMEMFUNC_P (TYPE) \ 4207 || NULLPTR_TYPE_P (TYPE)) 4208 4209 /* Determines whether this type is a C++0x scoped enumeration 4210 type. Scoped enumerations types are introduced via "enum class" or 4211 "enum struct", e.g., 4212 4213 enum class Color { 4214 Red, Green, Blue 4215 }; 4216 4217 Scoped enumeration types are different from normal (unscoped) 4218 enumeration types in several ways: 4219 4220 - The enumerators of a scoped enumeration type are only available 4221 within the scope of the enumeration type and not in the 4222 enclosing scope. For example, the Red color can be referred to 4223 with "Color::Red" but not "Red". 4224 4225 - Scoped enumerators and enumerations do not implicitly convert 4226 to integers or 'bool'. 4227 4228 - The underlying type of the enum is well-defined. */ 4229 #define SCOPED_ENUM_P(TYPE) \ 4230 (TREE_CODE (TYPE) == ENUMERAL_TYPE && ENUM_IS_SCOPED (TYPE)) 4231 4232 /* Determine whether this is an unscoped enumeration type. */ 4233 #define UNSCOPED_ENUM_P(TYPE) \ 4234 (TREE_CODE (TYPE) == ENUMERAL_TYPE && !ENUM_IS_SCOPED (TYPE)) 4235 4236 /* Set the flag indicating whether an ENUMERAL_TYPE is a C++0x scoped 4237 enumeration type (1) or a normal (unscoped) enumeration type 4238 (0). */ 4239 #define SET_SCOPED_ENUM_P(TYPE, VAL) \ 4240 (ENUM_IS_SCOPED (TYPE) = (VAL)) 4241 4242 #define SET_OPAQUE_ENUM_P(TYPE, VAL) \ 4243 (ENUM_IS_OPAQUE (TYPE) = (VAL)) 4244 4245 #define OPAQUE_ENUM_P(TYPE) \ 4246 (TREE_CODE (TYPE) == ENUMERAL_TYPE && ENUM_IS_OPAQUE (TYPE)) 4247 4248 /* Determines whether an ENUMERAL_TYPE has an explicit 4249 underlying type. */ 4250 #define ENUM_FIXED_UNDERLYING_TYPE_P(NODE) (TYPE_LANG_FLAG_5 (NODE)) 4251 4252 /* Returns the underlying type of the given enumeration type. The 4253 underlying type is determined in different ways, depending on the 4254 properties of the enum: 4255 4256 - In C++0x, the underlying type can be explicitly specified, e.g., 4257 4258 enum E1 : char { ... } // underlying type is char 4259 4260 - In a C++0x scoped enumeration, the underlying type is int 4261 unless otherwises specified: 4262 4263 enum class E2 { ... } // underlying type is int 4264 4265 - Otherwise, the underlying type is determined based on the 4266 values of the enumerators. In this case, the 4267 ENUM_UNDERLYING_TYPE will not be set until after the definition 4268 of the enumeration is completed by finish_enum. */ 4269 #define ENUM_UNDERLYING_TYPE(TYPE) \ 4270 TREE_TYPE (ENUMERAL_TYPE_CHECK (TYPE)) 4271 4272 /* [dcl.init.aggr] 4273 4274 An aggregate is an array or a class with no user-provided 4275 constructors, no brace-or-equal-initializers for non-static data 4276 members, no private or protected non-static data members, no 4277 base classes, and no virtual functions. 4278 4279 As an extension, we also treat vectors as aggregates. Keep these 4280 checks in ascending code order. */ 4281 #define CP_AGGREGATE_TYPE_P(TYPE) \ 4282 (gnu_vector_type_p (TYPE) \ 4283 || TREE_CODE (TYPE) == ARRAY_TYPE \ 4284 || (CLASS_TYPE_P (TYPE) && COMPLETE_TYPE_P (TYPE) && !CLASSTYPE_NON_AGGREGATE (TYPE))) 4285 4286 /* Nonzero for a class type means that the class type has a 4287 user-declared constructor. */ 4288 #define TYPE_HAS_USER_CONSTRUCTOR(NODE) (TYPE_LANG_FLAG_1 (NODE)) 4289 4290 /* Nonzero means that the FUNCTION_TYPE or METHOD_TYPE has a 4291 late-specified return type. */ 4292 #define TYPE_HAS_LATE_RETURN_TYPE(NODE) \ 4293 (TYPE_LANG_FLAG_2 (FUNC_OR_METHOD_CHECK (NODE))) 4294 4295 /* When appearing in an INDIRECT_REF, it means that the tree structure 4296 underneath is actually a call to a constructor. This is needed 4297 when the constructor must initialize local storage (which can 4298 be automatically destroyed), rather than allowing it to allocate 4299 space from the heap. 4300 4301 When appearing in a SAVE_EXPR, it means that underneath 4302 is a call to a constructor. 4303 4304 When appearing in a CONSTRUCTOR, the expression is a 4305 compound literal. 4306 4307 When appearing in a FIELD_DECL, it means that this field 4308 has been duly initialized in its constructor. */ 4309 #define TREE_HAS_CONSTRUCTOR(NODE) (TREE_LANG_FLAG_4 (NODE)) 4310 4311 /* True if NODE is a brace-enclosed initializer. */ 4312 #define BRACE_ENCLOSED_INITIALIZER_P(NODE) \ 4313 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_TYPE (NODE) == init_list_type_node) 4314 4315 /* True if NODE is a compound-literal, i.e., a brace-enclosed 4316 initializer cast to a particular type. */ 4317 #define COMPOUND_LITERAL_P(NODE) \ 4318 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_HAS_CONSTRUCTOR (NODE)) 4319 4320 #define EMPTY_CONSTRUCTOR_P(NODE) (TREE_CODE (NODE) == CONSTRUCTOR \ 4321 && vec_safe_is_empty(CONSTRUCTOR_ELTS(NODE))\ 4322 && !TREE_HAS_CONSTRUCTOR (NODE)) 4323 4324 /* True if NODE is a init-list used as a direct-initializer, i.e. 4325 B b{1,2}, not B b({1,2}) or B b = {1,2}. */ 4326 #define CONSTRUCTOR_IS_DIRECT_INIT(NODE) (TREE_LANG_FLAG_0 (CONSTRUCTOR_CHECK (NODE))) 4327 4328 /* True if this CONSTRUCTOR is instantiation-dependent and needs to be 4329 substituted. */ 4330 #define CONSTRUCTOR_IS_DEPENDENT(NODE) \ 4331 (TREE_LANG_FLAG_1 (CONSTRUCTOR_CHECK (NODE))) 4332 4333 /* True if this CONSTRUCTOR should not be used as a variable initializer 4334 because it was loaded from a constexpr variable with mutable fields. */ 4335 #define CONSTRUCTOR_MUTABLE_POISON(NODE) \ 4336 (TREE_LANG_FLAG_2 (CONSTRUCTOR_CHECK (NODE))) 4337 4338 /* True if this typed CONSTRUCTOR represents C99 compound-literal syntax rather 4339 than C++11 functional cast syntax. */ 4340 #define CONSTRUCTOR_C99_COMPOUND_LITERAL(NODE) \ 4341 (TREE_LANG_FLAG_3 (CONSTRUCTOR_CHECK (NODE))) 4342 4343 /* True if this CONSTRUCTOR contains PLACEHOLDER_EXPRs referencing the 4344 CONSTRUCTOR's type not nested inside another CONSTRUCTOR marked with 4345 CONSTRUCTOR_PLACEHOLDER_BOUNDARY. */ 4346 #define CONSTRUCTOR_PLACEHOLDER_BOUNDARY(NODE) \ 4347 (TREE_LANG_FLAG_5 (CONSTRUCTOR_CHECK (NODE))) 4348 4349 #define DIRECT_LIST_INIT_P(NODE) \ 4350 (BRACE_ENCLOSED_INITIALIZER_P (NODE) && CONSTRUCTOR_IS_DIRECT_INIT (NODE)) 4351 4352 /* True if this is a designated initializer (when we allow initializer-clauses 4353 mixed with designated-initializer-clauses set whenever there is at least 4354 one designated-initializer-clause), or a C99 designator. */ 4355 #define CONSTRUCTOR_IS_DESIGNATED_INIT(NODE) \ 4356 (TREE_LANG_FLAG_6 (CONSTRUCTOR_CHECK (NODE))) 4357 4358 /* True if this CONSTRUCTOR comes from a parenthesized list of values, e.g. 4359 A(1, 2, 3). */ 4360 #define CONSTRUCTOR_IS_PAREN_INIT(NODE) \ 4361 (CONSTRUCTOR_CHECK(NODE)->base.private_flag) 4362 4363 /* True if NODE represents a conversion for direct-initialization in a 4364 template. Set by perform_implicit_conversion_flags. */ 4365 #define IMPLICIT_CONV_EXPR_DIRECT_INIT(NODE) \ 4366 (TREE_LANG_FLAG_0 (IMPLICIT_CONV_EXPR_CHECK (NODE))) 4367 4368 /* True if NODE represents a dependent conversion of a non-type template 4369 argument. Set by maybe_convert_nontype_argument. */ 4370 #define IMPLICIT_CONV_EXPR_NONTYPE_ARG(NODE) \ 4371 (TREE_LANG_FLAG_1 (IMPLICIT_CONV_EXPR_CHECK (NODE))) 4372 4373 /* True if NODE represents a conversion for braced-init-list in a 4374 template. Set by perform_implicit_conversion_flags. */ 4375 #define IMPLICIT_CONV_EXPR_BRACED_INIT(NODE) \ 4376 (TREE_LANG_FLAG_2 (IMPLICIT_CONV_EXPR_CHECK (NODE))) 4377 4378 /* Nonzero means that an object of this type cannot be initialized using 4379 an initializer list. */ 4380 #define CLASSTYPE_NON_AGGREGATE(NODE) \ 4381 (LANG_TYPE_CLASS_CHECK (NODE)->non_aggregate) 4382 #define TYPE_NON_AGGREGATE_CLASS(NODE) \ 4383 (CLASS_TYPE_P (NODE) && CLASSTYPE_NON_AGGREGATE (NODE)) 4384 4385 /* Nonzero if there is a non-trivial X::op=(cv X&) for this class. */ 4386 #define TYPE_HAS_COMPLEX_COPY_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_copy_assign) 4387 4388 /* Nonzero if there is a non-trivial X::X(cv X&) for this class. */ 4389 #define TYPE_HAS_COMPLEX_COPY_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_copy_ctor) 4390 4391 /* Nonzero if there is a non-trivial X::op=(X&&) for this class. */ 4392 #define TYPE_HAS_COMPLEX_MOVE_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_move_assign) 4393 4394 /* Nonzero if there is a non-trivial X::X(X&&) for this class. */ 4395 #define TYPE_HAS_COMPLEX_MOVE_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_move_ctor) 4396 4397 /* Nonzero if there is no trivial default constructor for this class. */ 4398 #define TYPE_HAS_COMPLEX_DFLT(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_dflt) 4399 4400 /* Nonzero if TYPE has a trivial destructor. From [class.dtor]: 4401 4402 A destructor is trivial if it is an implicitly declared 4403 destructor and if: 4404 4405 - all of the direct base classes of its class have trivial 4406 destructors, 4407 4408 - for all of the non-static data members of its class that are 4409 of class type (or array thereof), each such class has a 4410 trivial destructor. */ 4411 #define TYPE_HAS_TRIVIAL_DESTRUCTOR(NODE) \ 4412 (!TYPE_HAS_NONTRIVIAL_DESTRUCTOR (NODE)) 4413 4414 /* Nonzero for _TYPE node means that this type does not have a trivial 4415 destructor. Therefore, destroying an object of this type will 4416 involve a call to a destructor. This can apply to objects of 4417 ARRAY_TYPE if the type of the elements needs a destructor. */ 4418 #define TYPE_HAS_NONTRIVIAL_DESTRUCTOR(NODE) \ 4419 (TYPE_LANG_FLAG_4 (NODE)) 4420 4421 /* Nonzero for class type means that the default constructor is trivial. */ 4422 #define TYPE_HAS_TRIVIAL_DFLT(NODE) \ 4423 (TYPE_HAS_DEFAULT_CONSTRUCTOR (NODE) && ! TYPE_HAS_COMPLEX_DFLT (NODE)) 4424 4425 /* Nonzero for class type means that copy initialization of this type can use 4426 a bitwise copy. */ 4427 #define TYPE_HAS_TRIVIAL_COPY_CTOR(NODE) \ 4428 (TYPE_HAS_COPY_CTOR (NODE) && ! TYPE_HAS_COMPLEX_COPY_CTOR (NODE)) 4429 4430 /* Nonzero for class type means that assignment of this type can use 4431 a bitwise copy. */ 4432 #define TYPE_HAS_TRIVIAL_COPY_ASSIGN(NODE) \ 4433 (TYPE_HAS_COPY_ASSIGN (NODE) && ! TYPE_HAS_COMPLEX_COPY_ASSIGN (NODE)) 4434 4435 /* Returns true if NODE is a pointer-to-data-member. */ 4436 #define TYPE_PTRDATAMEM_P(NODE) \ 4437 (TREE_CODE (NODE) == OFFSET_TYPE) 4438 4439 /* Returns true if NODE is a pointer. */ 4440 #define TYPE_PTR_P(NODE) \ 4441 (TREE_CODE (NODE) == POINTER_TYPE) 4442 4443 /* Returns true if NODE is a reference. */ 4444 #define TYPE_REF_P(NODE) \ 4445 (TREE_CODE (NODE) == REFERENCE_TYPE) 4446 4447 /* Returns true if NODE is a pointer or a reference. */ 4448 #define INDIRECT_TYPE_P(NODE) \ 4449 (TYPE_PTR_P (NODE) || TYPE_REF_P (NODE)) 4450 4451 /* Returns true if NODE is an object type: 4452 4453 [basic.types] 4454 4455 An object type is a (possibly cv-qualified) type that is not a 4456 function type, not a reference type, and not a void type. 4457 4458 Keep these checks in ascending order, for speed. */ 4459 #define TYPE_OBJ_P(NODE) \ 4460 (!TYPE_REF_P (NODE) \ 4461 && !VOID_TYPE_P (NODE) \ 4462 && !FUNC_OR_METHOD_TYPE_P (NODE)) 4463 4464 /* Returns true if NODE is a pointer to an object. Keep these checks 4465 in ascending tree code order. */ 4466 #define TYPE_PTROB_P(NODE) \ 4467 (TYPE_PTR_P (NODE) && TYPE_OBJ_P (TREE_TYPE (NODE))) 4468 4469 /* Returns true if NODE is a reference to an object. Keep these checks 4470 in ascending tree code order. */ 4471 #define TYPE_REF_OBJ_P(NODE) \ 4472 (TYPE_REF_P (NODE) && TYPE_OBJ_P (TREE_TYPE (NODE))) 4473 4474 /* Returns true if NODE is a pointer to an object, or a pointer to 4475 void. Keep these checks in ascending tree code order. */ 4476 #define TYPE_PTROBV_P(NODE) \ 4477 (TYPE_PTR_P (NODE) \ 4478 && !FUNC_OR_METHOD_TYPE_P (TREE_TYPE (NODE))) 4479 4480 /* Returns true if NODE is a pointer to function type. */ 4481 #define TYPE_PTRFN_P(NODE) \ 4482 (TYPE_PTR_P (NODE) \ 4483 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE) 4484 4485 /* Returns true if NODE is a reference to function type. */ 4486 #define TYPE_REFFN_P(NODE) \ 4487 (TYPE_REF_P (NODE) \ 4488 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE) 4489 4490 /* Returns true if NODE is a pointer to member function type. */ 4491 #define TYPE_PTRMEMFUNC_P(NODE) \ 4492 (TREE_CODE (NODE) == RECORD_TYPE \ 4493 && TYPE_PTRMEMFUNC_FLAG (NODE)) 4494 4495 #define TYPE_PTRMEMFUNC_FLAG(NODE) \ 4496 (TYPE_LANG_FLAG_2 (RECORD_TYPE_CHECK (NODE))) 4497 4498 /* Returns true if NODE is a pointer-to-member. */ 4499 #define TYPE_PTRMEM_P(NODE) \ 4500 (TYPE_PTRDATAMEM_P (NODE) || TYPE_PTRMEMFUNC_P (NODE)) 4501 4502 /* Returns true if NODE is a pointer or a pointer-to-member. */ 4503 #define TYPE_PTR_OR_PTRMEM_P(NODE) \ 4504 (TYPE_PTR_P (NODE) || TYPE_PTRMEM_P (NODE)) 4505 4506 /* Indicates when overload resolution may resolve to a pointer to 4507 member function. [expr.unary.op]/3 */ 4508 #define PTRMEM_OK_P(NODE) \ 4509 TREE_LANG_FLAG_0 (TREE_CHECK3 ((NODE), ADDR_EXPR, OFFSET_REF, SCOPE_REF)) 4510 4511 /* Get the POINTER_TYPE to the METHOD_TYPE associated with this 4512 pointer to member function. TYPE_PTRMEMFUNC_P _must_ be true, 4513 before using this macro. */ 4514 #define TYPE_PTRMEMFUNC_FN_TYPE(NODE) \ 4515 (cp_build_qualified_type (TREE_TYPE (TYPE_FIELDS (NODE)),\ 4516 cp_type_quals (NODE))) 4517 4518 /* As above, but can be used in places that want an lvalue at the expense 4519 of not necessarily having the correct cv-qualifiers. */ 4520 #define TYPE_PTRMEMFUNC_FN_TYPE_RAW(NODE) \ 4521 (TREE_TYPE (TYPE_FIELDS (NODE))) 4522 4523 /* Returns `A' for a type like `int (A::*)(double)' */ 4524 #define TYPE_PTRMEMFUNC_OBJECT_TYPE(NODE) \ 4525 TYPE_METHOD_BASETYPE (TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE))) 4526 4527 /* The canonical internal RECORD_TYPE from the POINTER_TYPE to 4528 METHOD_TYPE. */ 4529 #define TYPE_PTRMEMFUNC_TYPE(NODE) \ 4530 TYPE_LANG_SLOT_1 (NODE) 4531 4532 /* For a pointer-to-member type of the form `T X::*', this is `X'. 4533 For a type like `void (X::*)() const', this type is `X', not `const 4534 X'. To get at the `const X' you have to look at the 4535 TYPE_PTRMEM_POINTED_TO_TYPE; there, the first parameter will have 4536 type `const X*'. */ 4537 #define TYPE_PTRMEM_CLASS_TYPE(NODE) \ 4538 (TYPE_PTRDATAMEM_P (NODE) \ 4539 ? TYPE_OFFSET_BASETYPE (NODE) \ 4540 : TYPE_PTRMEMFUNC_OBJECT_TYPE (NODE)) 4541 4542 /* For a pointer-to-member type of the form `T X::*', this is `T'. */ 4543 #define TYPE_PTRMEM_POINTED_TO_TYPE(NODE) \ 4544 (TYPE_PTRDATAMEM_P (NODE) \ 4545 ? TREE_TYPE (NODE) \ 4546 : TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE))) 4547 4548 /* For a pointer-to-member constant `X::Y' this is the RECORD_TYPE for 4549 `X'. */ 4550 #define PTRMEM_CST_CLASS(NODE) \ 4551 TYPE_PTRMEM_CLASS_TYPE (TREE_TYPE (PTRMEM_CST_CHECK (NODE))) 4552 4553 /* For a pointer-to-member constant `X::Y' this is the _DECL for 4554 `Y'. */ 4555 #define PTRMEM_CST_MEMBER(NODE) \ 4556 (((ptrmem_cst_t)PTRMEM_CST_CHECK (NODE))->member) 4557 4558 /* The expression in question for a TYPEOF_TYPE. */ 4559 #define TYPEOF_TYPE_EXPR(NODE) (TYPE_VALUES_RAW (TYPEOF_TYPE_CHECK (NODE))) 4560 4561 /* The type in question for an UNDERLYING_TYPE. */ 4562 #define UNDERLYING_TYPE_TYPE(NODE) \ 4563 (TYPE_VALUES_RAW (UNDERLYING_TYPE_CHECK (NODE))) 4564 4565 /* The type in question for BASES. */ 4566 #define BASES_TYPE(NODE) \ 4567 (TYPE_VALUES_RAW (BASES_CHECK (NODE))) 4568 4569 #define BASES_DIRECT(NODE) \ 4570 TREE_LANG_FLAG_0 (BASES_CHECK (NODE)) 4571 4572 /* The expression in question for a DECLTYPE_TYPE. */ 4573 #define DECLTYPE_TYPE_EXPR(NODE) (TYPE_VALUES_RAW (DECLTYPE_TYPE_CHECK (NODE))) 4574 4575 /* Whether the DECLTYPE_TYPE_EXPR of NODE was originally parsed as an 4576 id-expression or a member-access expression. When false, it was 4577 parsed as a full expression. */ 4578 #define DECLTYPE_TYPE_ID_EXPR_OR_MEMBER_ACCESS_P(NODE) \ 4579 (DECLTYPE_TYPE_CHECK (NODE))->type_common.string_flag 4580 4581 /* These flags indicate that we want different semantics from normal 4582 decltype: lambda capture just drops references, 4583 lambda proxies look through implicit dereference. */ 4584 #define DECLTYPE_FOR_LAMBDA_CAPTURE(NODE) \ 4585 TREE_LANG_FLAG_0 (DECLTYPE_TYPE_CHECK (NODE)) 4586 #define DECLTYPE_FOR_LAMBDA_PROXY(NODE) \ 4587 TREE_LANG_FLAG_2 (DECLTYPE_TYPE_CHECK (NODE)) 4588 #define DECLTYPE_FOR_REF_CAPTURE(NODE) \ 4589 TREE_LANG_FLAG_3 (DECLTYPE_TYPE_CHECK (NODE)) 4590 4591 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `extern' was 4592 specified in its declaration. This can also be set for an 4593 erroneously declared PARM_DECL. */ 4594 #define DECL_THIS_EXTERN(NODE) \ 4595 DECL_LANG_FLAG_2 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE)) 4596 4597 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `static' was 4598 specified in its declaration. This can also be set for an 4599 erroneously declared PARM_DECL. */ 4600 #define DECL_THIS_STATIC(NODE) \ 4601 DECL_LANG_FLAG_6 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE)) 4602 4603 /* Nonzero for FIELD_DECL node means that this field is a lambda capture 4604 field for an array of runtime bound. */ 4605 #define DECL_VLA_CAPTURE_P(NODE) \ 4606 DECL_LANG_FLAG_1 (FIELD_DECL_CHECK (NODE)) 4607 4608 /* Nonzero for PARM_DECL node means that this is an array function 4609 parameter, i.e, a[] rather than *a. */ 4610 #define DECL_ARRAY_PARAMETER_P(NODE) \ 4611 DECL_LANG_FLAG_1 (PARM_DECL_CHECK (NODE)) 4612 4613 /* Nonzero for a FIELD_DECL who's NSMDI is currently being 4614 instantiated. */ 4615 #define DECL_INSTANTIATING_NSDMI_P(NODE) \ 4616 DECL_LANG_FLAG_2 (FIELD_DECL_CHECK (NODE)) 4617 4618 /* Nonzero for FIELD_DECL node means that this field is a base class 4619 of the parent object, as opposed to a member field. */ 4620 #define DECL_FIELD_IS_BASE(NODE) \ 4621 DECL_LANG_FLAG_6 (FIELD_DECL_CHECK (NODE)) 4622 4623 /* Nonzero for FIELD_DECL node means that this field is a simple (no 4624 explicit initializer) lambda capture field, making it invisible to 4625 name lookup in unevaluated contexts. */ 4626 #define DECL_NORMAL_CAPTURE_P(NODE) \ 4627 DECL_LANG_FLAG_7 (FIELD_DECL_CHECK (NODE)) 4628 4629 /* Nonzero if TYPE is an anonymous union or struct type. We have to use a 4630 flag for this because "A union for which objects or pointers are 4631 declared is not an anonymous union" [class.union]. */ 4632 #define ANON_AGGR_TYPE_P(NODE) \ 4633 (CLASS_TYPE_P (NODE) && LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr) 4634 #define SET_ANON_AGGR_TYPE_P(NODE) \ 4635 (LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr = 1) 4636 4637 /* Nonzero if TYPE is an anonymous union type. */ 4638 #define ANON_UNION_TYPE_P(NODE) \ 4639 (TREE_CODE (NODE) == UNION_TYPE && ANON_AGGR_TYPE_P (NODE)) 4640 4641 /* Define fields and accessors for nodes representing declared names. */ 4642 4643 /* True if TYPE is an unnamed structured type with a typedef for 4644 linkage purposes. In that case TYPE_NAME and TYPE_STUB_DECL of the 4645 MAIN-VARIANT are different. */ 4646 #define TYPE_WAS_UNNAMED(NODE) \ 4647 (TYPE_NAME (TYPE_MAIN_VARIANT (NODE)) \ 4648 != TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE))) 4649 4650 /* C++: all of these are overloaded! These apply only to TYPE_DECLs. */ 4651 4652 /* The format of each node in the DECL_FRIENDLIST is as follows: 4653 4654 The TREE_PURPOSE will be the name of a function, i.e., an 4655 IDENTIFIER_NODE. The TREE_VALUE will be itself a TREE_LIST, whose 4656 TREE_VALUEs are friends with the given name. */ 4657 #define DECL_FRIENDLIST(NODE) (DECL_INITIAL (NODE)) 4658 #define FRIEND_NAME(LIST) (TREE_PURPOSE (LIST)) 4659 #define FRIEND_DECLS(LIST) (TREE_VALUE (LIST)) 4660 4661 /* The DECL_ACCESS, if non-NULL, is a TREE_LIST. The TREE_PURPOSE of 4662 each node is a type; the TREE_VALUE is the access granted for this 4663 DECL in that type. The DECL_ACCESS is set by access declarations. 4664 For example, if a member that would normally be public in a 4665 derived class is made protected, then the derived class and the 4666 protected_access_node will appear in the DECL_ACCESS for the node. */ 4667 #define DECL_ACCESS(NODE) (LANG_DECL_MIN_CHECK (NODE)->access) 4668 4669 /* Nonzero if the FUNCTION_DECL is a global constructor. */ 4670 #define DECL_GLOBAL_CTOR_P(NODE) \ 4671 (LANG_DECL_FN_CHECK (NODE)->global_ctor_p) 4672 4673 /* Nonzero if the FUNCTION_DECL is a global destructor. */ 4674 #define DECL_GLOBAL_DTOR_P(NODE) \ 4675 (LANG_DECL_FN_CHECK (NODE)->global_dtor_p) 4676 4677 /* Accessor macros for C++ template decl nodes. */ 4678 4679 /* The DECL_TEMPLATE_PARMS are a list. The TREE_PURPOSE of each node 4680 is a INT_CST whose TREE_INT_CST_LOW indicates the level of the 4681 template parameters, with 1 being the outermost set of template 4682 parameters. The TREE_VALUE is a vector, whose elements are the 4683 template parameters at each level. Each element in the vector is a 4684 TREE_LIST, whose TREE_VALUE is a PARM_DECL (if the parameter is a 4685 non-type parameter), or a TYPE_DECL (if the parameter is a type 4686 parameter). The TREE_PURPOSE is the default value, if any. The 4687 TEMPLATE_PARM_INDEX for the parameter is available as the 4688 DECL_INITIAL (for a PARM_DECL) or as the TREE_TYPE (for a 4689 TYPE_DECL). 4690 4691 FIXME: CONST_CAST_TREE is a hack that hopefully will go away after 4692 tree is converted to C++ class hiearchy. */ 4693 #define DECL_TEMPLATE_PARMS(NODE) \ 4694 ((struct tree_template_decl *)CONST_CAST_TREE (TEMPLATE_DECL_CHECK (NODE)))->arguments 4695 #define DECL_INNERMOST_TEMPLATE_PARMS(NODE) \ 4696 INNERMOST_TEMPLATE_PARMS (DECL_TEMPLATE_PARMS (NODE)) 4697 #define DECL_NTPARMS(NODE) \ 4698 TREE_VEC_LENGTH (DECL_INNERMOST_TEMPLATE_PARMS (NODE)) 4699 /* For function, method, class-data templates. 4700 4701 FIXME: CONST_CAST_TREE is a hack that hopefully will go away after 4702 tree is converted to C++ class hiearchy. */ 4703 #define DECL_TEMPLATE_RESULT(NODE) \ 4704 ((struct tree_template_decl *)CONST_CAST_TREE(TEMPLATE_DECL_CHECK (NODE)))->result 4705 /* For a function template at namespace scope, DECL_TEMPLATE_INSTANTIATIONS 4706 lists all instantiations and specializations of the function so that 4707 tsubst_friend_function can reassign them to another template if we find 4708 that the namespace-scope template is really a partial instantiation of a 4709 friend template. 4710 4711 For a class template the DECL_TEMPLATE_INSTANTIATIONS lists holds 4712 all instantiations and specializations of the class type, including 4713 partial instantiations and partial specializations, so that if we 4714 explicitly specialize a partial instantiation we can walk the list 4715 in maybe_process_partial_specialization and reassign them or complain 4716 as appropriate. 4717 4718 In both cases, the TREE_PURPOSE of each node contains the arguments 4719 used; the TREE_VALUE contains the generated variable. The template 4720 arguments are always complete. For example, given: 4721 4722 template <class T> struct S1 { 4723 template <class U> struct S2 {}; 4724 template <class U> struct S2<U*> {}; 4725 }; 4726 4727 the record for the partial specialization will contain, as its 4728 argument list, { {T}, {U*} }, and will be on the 4729 DECL_TEMPLATE_INSTANTIATIONS list for `template <class T> template 4730 <class U> struct S1<T>::S2'. 4731 4732 This list is not used for other templates. */ 4733 #define DECL_TEMPLATE_INSTANTIATIONS(NODE) \ 4734 DECL_SIZE_UNIT (TEMPLATE_DECL_CHECK (NODE)) 4735 4736 /* For a class template, this list contains the partial 4737 specializations of this template. (Full specializations are not 4738 recorded on this list.) The TREE_PURPOSE holds the arguments used 4739 in the partial specialization (e.g., for `template <class T> struct 4740 S<T*, int>' this will be `T*, int'.) The arguments will also include 4741 any outer template arguments. The TREE_VALUE holds the TEMPLATE_DECL 4742 for the partial specialization. The TREE_TYPE is the _TYPE node for 4743 the partial specialization. 4744 4745 This list is not used for other templates. */ 4746 #define DECL_TEMPLATE_SPECIALIZATIONS(NODE) \ 4747 DECL_SIZE (TEMPLATE_DECL_CHECK (NODE)) 4748 4749 /* Nonzero for a DECL which is actually a template parameter. Keep 4750 these checks in ascending tree code order. */ 4751 #define DECL_TEMPLATE_PARM_P(NODE) \ 4752 (DECL_LANG_FLAG_0 (NODE) \ 4753 && (TREE_CODE (NODE) == CONST_DECL \ 4754 || TREE_CODE (NODE) == PARM_DECL \ 4755 || TREE_CODE (NODE) == TYPE_DECL \ 4756 || TREE_CODE (NODE) == TEMPLATE_DECL)) 4757 4758 /* Nonzero for a raw template parameter node. */ 4759 #define TEMPLATE_PARM_P(NODE) \ 4760 (TREE_CODE (NODE) == TEMPLATE_TYPE_PARM \ 4761 || TREE_CODE (NODE) == TEMPLATE_TEMPLATE_PARM \ 4762 || TREE_CODE (NODE) == TEMPLATE_PARM_INDEX) 4763 4764 /* Mark NODE as a template parameter. */ 4765 #define SET_DECL_TEMPLATE_PARM_P(NODE) \ 4766 (DECL_LANG_FLAG_0 (NODE) = 1) 4767 4768 /* Nonzero if NODE is a template template parameter. */ 4769 #define DECL_TEMPLATE_TEMPLATE_PARM_P(NODE) \ 4770 (TREE_CODE (NODE) == TEMPLATE_DECL && DECL_TEMPLATE_PARM_P (NODE)) 4771 4772 /* Nonzero for a DECL that represents a function template. */ 4773 #define DECL_FUNCTION_TEMPLATE_P(NODE) \ 4774 (TREE_CODE (NODE) == TEMPLATE_DECL \ 4775 && DECL_TEMPLATE_RESULT (NODE) != NULL_TREE \ 4776 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == FUNCTION_DECL) 4777 4778 /* Nonzero for a DECL that represents a class template or alias 4779 template. */ 4780 #define DECL_TYPE_TEMPLATE_P(NODE) \ 4781 (TREE_CODE (NODE) == TEMPLATE_DECL \ 4782 && DECL_TEMPLATE_RESULT (NODE) != NULL_TREE \ 4783 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == TYPE_DECL) 4784 4785 /* Nonzero for a DECL that represents a class template. */ 4786 #define DECL_CLASS_TEMPLATE_P(NODE) \ 4787 (DECL_TYPE_TEMPLATE_P (NODE) \ 4788 && DECL_IMPLICIT_TYPEDEF_P (DECL_TEMPLATE_RESULT (NODE))) 4789 4790 /* Nonzero for a TEMPLATE_DECL that represents an alias template. */ 4791 #define DECL_ALIAS_TEMPLATE_P(NODE) \ 4792 (DECL_TYPE_TEMPLATE_P (NODE) \ 4793 && !DECL_ARTIFICIAL (DECL_TEMPLATE_RESULT (NODE))) 4794 4795 /* Nonzero for a NODE which declares a type. */ 4796 #define DECL_DECLARES_TYPE_P(NODE) \ 4797 (TREE_CODE (NODE) == TYPE_DECL || DECL_TYPE_TEMPLATE_P (NODE)) 4798 4799 /* Nonzero if NODE declares a function. */ 4800 #define DECL_DECLARES_FUNCTION_P(NODE) \ 4801 (TREE_CODE (NODE) == FUNCTION_DECL || DECL_FUNCTION_TEMPLATE_P (NODE)) 4802 4803 /* Nonzero if NODE is the typedef implicitly generated for a type when 4804 the type is declared. In C++, `struct S {};' is roughly 4805 equivalent to `struct S {}; typedef struct S S;' in C. 4806 DECL_IMPLICIT_TYPEDEF_P will hold for the typedef indicated in this 4807 example. In C++, there is a second implicit typedef for each 4808 class, called the injected-class-name, in the scope of `S' itself, so that 4809 you can say `S::S'. DECL_SELF_REFERENCE_P will hold for that typedef. */ 4810 #define DECL_IMPLICIT_TYPEDEF_P(NODE) \ 4811 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_2 (NODE)) 4812 #define SET_DECL_IMPLICIT_TYPEDEF_P(NODE) \ 4813 (DECL_LANG_FLAG_2 (NODE) = 1) 4814 #define DECL_SELF_REFERENCE_P(NODE) \ 4815 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_4 (NODE)) 4816 #define SET_DECL_SELF_REFERENCE_P(NODE) \ 4817 (DECL_LANG_FLAG_4 (NODE) = 1) 4818 4819 /* A `primary' template is one that has its own template header and is not 4820 a partial specialization. A member function of a class template is a 4821 template, but not primary. A member template is primary. Friend 4822 templates are primary, too. */ 4823 4824 /* Returns the primary template corresponding to these parameters. */ 4825 #define DECL_PRIMARY_TEMPLATE(NODE) \ 4826 (TREE_TYPE (DECL_INNERMOST_TEMPLATE_PARMS (NODE))) 4827 4828 /* Returns nonzero if NODE is a primary template. */ 4829 #define PRIMARY_TEMPLATE_P(NODE) (DECL_PRIMARY_TEMPLATE (NODE) == (NODE)) 4830 4831 /* Nonzero iff NODE is a specialization of a template. The value 4832 indicates the type of specializations: 4833 4834 1=implicit instantiation 4835 4836 2=partial or explicit specialization, e.g.: 4837 4838 template <> int min<int> (int, int), 4839 4840 3=explicit instantiation, e.g.: 4841 4842 template int min<int> (int, int); 4843 4844 Note that NODE will be marked as a specialization even if the 4845 template it is instantiating is not a primary template. For 4846 example, given: 4847 4848 template <typename T> struct O { 4849 void f(); 4850 struct I {}; 4851 }; 4852 4853 both O<int>::f and O<int>::I will be marked as instantiations. 4854 4855 If DECL_USE_TEMPLATE is nonzero, then DECL_TEMPLATE_INFO will also 4856 be non-NULL. */ 4857 #define DECL_USE_TEMPLATE(NODE) (DECL_LANG_SPECIFIC (NODE)->u.base.use_template) 4858 4859 /* Like DECL_USE_TEMPLATE, but for class types. */ 4860 #define CLASSTYPE_USE_TEMPLATE(NODE) \ 4861 (LANG_TYPE_CLASS_CHECK (NODE)->use_template) 4862 4863 /* True if NODE is a specialization of a primary template. */ 4864 #define CLASSTYPE_SPECIALIZATION_OF_PRIMARY_TEMPLATE_P(NODE) \ 4865 (CLASS_TYPE_P (NODE) \ 4866 && CLASSTYPE_USE_TEMPLATE (NODE) \ 4867 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE))) 4868 4869 #define DECL_TEMPLATE_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) & 1) 4870 #define CLASSTYPE_TEMPLATE_INSTANTIATION(NODE) \ 4871 (CLASSTYPE_USE_TEMPLATE (NODE) & 1) 4872 4873 #define DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) == 2) 4874 #define SET_DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) = 2) 4875 4876 /* Returns true for an explicit or partial specialization of a class 4877 template. */ 4878 #define CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \ 4879 (CLASSTYPE_USE_TEMPLATE (NODE) == 2) 4880 #define SET_CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \ 4881 (CLASSTYPE_USE_TEMPLATE (NODE) = 2) 4882 4883 #define DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 1) 4884 #define SET_DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 1) 4885 #define CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \ 4886 (CLASSTYPE_USE_TEMPLATE (NODE) == 1) 4887 #define SET_CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \ 4888 (CLASSTYPE_USE_TEMPLATE (NODE) = 1) 4889 4890 #define DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 3) 4891 #define SET_DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 3) 4892 #define CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \ 4893 (CLASSTYPE_USE_TEMPLATE (NODE) == 3) 4894 #define SET_CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \ 4895 (CLASSTYPE_USE_TEMPLATE (NODE) = 3) 4896 4897 /* Nonzero if DECL is a friend function which is an instantiation 4898 from the point of view of the compiler, but not from the point of 4899 view of the language. For example given: 4900 template <class T> struct S { friend void f(T) {}; }; 4901 the declaration of `void f(int)' generated when S<int> is 4902 instantiated will not be a DECL_TEMPLATE_INSTANTIATION, but will be 4903 a DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION. */ 4904 #define DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION(DECL) \ 4905 (DECL_LANG_SPECIFIC (DECL) && DECL_TEMPLATE_INFO (DECL) \ 4906 && !DECL_USE_TEMPLATE (DECL)) 4907 4908 /* Nonzero if DECL is a function generated from a function 'temploid', 4909 i.e. template, member of class template, or dependent friend. */ 4910 #define DECL_TEMPLOID_INSTANTIATION(DECL) \ 4911 (DECL_TEMPLATE_INSTANTIATION (DECL) \ 4912 || DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (DECL)) 4913 4914 /* Nonzero if DECL is either defined implicitly by the compiler or 4915 generated from a temploid. */ 4916 #define DECL_GENERATED_P(DECL) \ 4917 (DECL_TEMPLOID_INSTANTIATION (DECL) || DECL_DEFAULTED_FN (DECL)) 4918 4919 /* Nonzero iff we are currently processing a declaration for an 4920 entity with its own template parameter list, and which is not a 4921 full specialization. */ 4922 #define PROCESSING_REAL_TEMPLATE_DECL_P() \ 4923 (!processing_template_parmlist \ 4924 && processing_template_decl > template_class_depth (current_scope ())) 4925 4926 /* Nonzero if this VAR_DECL or FUNCTION_DECL has already been 4927 instantiated, i.e. its definition has been generated from the 4928 pattern given in the template. */ 4929 #define DECL_TEMPLATE_INSTANTIATED(NODE) \ 4930 DECL_LANG_FLAG_1 (VAR_OR_FUNCTION_DECL_CHECK (NODE)) 4931 4932 /* We know what we're doing with this decl now. */ 4933 #define DECL_INTERFACE_KNOWN(NODE) DECL_LANG_FLAG_5 (NODE) 4934 4935 /* DECL_EXTERNAL must be set on a decl until the decl is actually emitted, 4936 so that assemble_external will work properly. So we have this flag to 4937 tell us whether the decl is really not external. 4938 4939 This flag does not indicate whether or not the decl is defined in the 4940 current translation unit; it indicates whether or not we should emit the 4941 decl at the end of compilation if it is defined and needed. */ 4942 #define DECL_NOT_REALLY_EXTERN(NODE) \ 4943 (DECL_LANG_SPECIFIC (NODE)->u.base.not_really_extern) 4944 4945 #define DECL_REALLY_EXTERN(NODE) \ 4946 (DECL_EXTERNAL (NODE) \ 4947 && (!DECL_LANG_SPECIFIC (NODE) || !DECL_NOT_REALLY_EXTERN (NODE))) 4948 4949 /* A thunk is a stub function. 4950 4951 A thunk is an alternate entry point for an ordinary FUNCTION_DECL. 4952 The address of the ordinary FUNCTION_DECL is given by the 4953 DECL_INITIAL, which is always an ADDR_EXPR whose operand is a 4954 FUNCTION_DECL. The job of the thunk is to either adjust the this 4955 pointer before transferring control to the FUNCTION_DECL, or call 4956 FUNCTION_DECL and then adjust the result value. Note, the result 4957 pointer adjusting thunk must perform a call to the thunked 4958 function, (or be implemented via passing some invisible parameter 4959 to the thunked function, which is modified to perform the 4960 adjustment just before returning). 4961 4962 A thunk may perform either, or both, of the following operations: 4963 4964 o Adjust the this or result pointer by a constant offset. 4965 o Adjust the this or result pointer by looking up a vcall or vbase offset 4966 in the vtable. 4967 4968 A this pointer adjusting thunk converts from a base to a derived 4969 class, and hence adds the offsets. A result pointer adjusting thunk 4970 converts from a derived class to a base, and hence subtracts the 4971 offsets. If both operations are performed, then the constant 4972 adjustment is performed first for this pointer adjustment and last 4973 for the result pointer adjustment. 4974 4975 The constant adjustment is given by THUNK_FIXED_OFFSET. If the 4976 vcall or vbase offset is required, THUNK_VIRTUAL_OFFSET is 4977 used. For this pointer adjusting thunks, it is the vcall offset 4978 into the vtable. For result pointer adjusting thunks it is the 4979 binfo of the virtual base to convert to. Use that binfo's vbase 4980 offset. 4981 4982 It is possible to have equivalent covariant thunks. These are 4983 distinct virtual covariant thunks whose vbase offsets happen to 4984 have the same value. THUNK_ALIAS is used to pick one as the 4985 canonical thunk, which will get all the this pointer adjusting 4986 thunks attached to it. */ 4987 4988 /* An integer indicating how many bytes should be subtracted from the 4989 this or result pointer when this function is called. */ 4990 #define THUNK_FIXED_OFFSET(DECL) \ 4991 (DECL_LANG_SPECIFIC (THUNK_FUNCTION_CHECK (DECL))->u.fn.u5.fixed_offset) 4992 4993 /* A tree indicating how to perform the virtual adjustment. For a this 4994 adjusting thunk it is the number of bytes to be added to the vtable 4995 to find the vcall offset. For a result adjusting thunk, it is the 4996 binfo of the relevant virtual base. If NULL, then there is no 4997 virtual adjust. (The vptr is always located at offset zero from 4998 the this or result pointer.) (If the covariant type is within the 4999 class hierarchy being laid out, the vbase index is not yet known 5000 at the point we need to create the thunks, hence the need to use 5001 binfos.) */ 5002 5003 #define THUNK_VIRTUAL_OFFSET(DECL) \ 5004 (LANG_DECL_MIN_CHECK (FUNCTION_DECL_CHECK (DECL))->access) 5005 5006 /* A thunk which is equivalent to another thunk. */ 5007 #define THUNK_ALIAS(DECL) \ 5008 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->u.min.template_info) 5009 5010 /* For thunk NODE, this is the FUNCTION_DECL thunked to. It is 5011 possible for the target to be a thunk too. */ 5012 #define THUNK_TARGET(NODE) \ 5013 (LANG_DECL_FN_CHECK (NODE)->befriending_classes) 5014 5015 /* True for a SCOPE_REF iff the "template" keyword was used to 5016 indicate that the qualified name denotes a template. */ 5017 #define QUALIFIED_NAME_IS_TEMPLATE(NODE) \ 5018 (TREE_LANG_FLAG_1 (SCOPE_REF_CHECK (NODE))) 5019 5020 /* [coroutines] 5021 */ 5022 5023 /* True if NODE is a co-routine FUNCTION_DECL. */ 5024 #define DECL_COROUTINE_P(NODE) \ 5025 (LANG_DECL_FN_CHECK (DECL_COMMON_CHECK (NODE))->coroutine_p) 5026 5027 /* True for an OMP_ATOMIC that has dependent parameters. These are stored 5028 as an expr in operand 1, and integer_zero_node or clauses in operand 0. */ 5029 #define OMP_ATOMIC_DEPENDENT_P(NODE) \ 5030 (TREE_CODE (TREE_OPERAND (OMP_ATOMIC_CHECK (NODE), 0)) == INTEGER_CST \ 5031 || TREE_CODE (TREE_OPERAND (OMP_ATOMIC_CHECK (NODE), 0)) == OMP_CLAUSE) 5032 5033 /* Used while gimplifying continue statements bound to OMP_FOR nodes. */ 5034 #define OMP_FOR_GIMPLIFYING_P(NODE) \ 5035 (TREE_LANG_FLAG_0 (OMP_LOOPING_CHECK (NODE))) 5036 5037 /* A language-specific token attached to the OpenMP data clauses to 5038 hold code (or code fragments) related to ctors, dtors, and op=. 5039 See semantics.c for details. */ 5040 #define CP_OMP_CLAUSE_INFO(NODE) \ 5041 TREE_TYPE (OMP_CLAUSE_RANGE_CHECK (NODE, OMP_CLAUSE_PRIVATE, \ 5042 OMP_CLAUSE__CONDTEMP_)) 5043 5044 /* Nonzero if this transaction expression's body contains statements. */ 5045 #define TRANSACTION_EXPR_IS_STMT(NODE) \ 5046 TREE_LANG_FLAG_0 (TRANSACTION_EXPR_CHECK (NODE)) 5047 5048 /* These macros provide convenient access to the various _STMT nodes 5049 created when parsing template declarations. */ 5050 #define TRY_STMTS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 0) 5051 #define TRY_HANDLERS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 1) 5052 5053 #define EH_SPEC_STMTS(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 0) 5054 #define EH_SPEC_RAISES(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 1) 5055 5056 #define USING_STMT_NAMESPACE(NODE) TREE_OPERAND (USING_STMT_CHECK (NODE), 0) 5057 5058 /* Nonzero if this try block is a function try block. */ 5059 #define FN_TRY_BLOCK_P(NODE) TREE_LANG_FLAG_3 (TRY_BLOCK_CHECK (NODE)) 5060 #define HANDLER_PARMS(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 0) 5061 #define HANDLER_BODY(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 1) 5062 #define HANDLER_TYPE(NODE) TREE_TYPE (HANDLER_CHECK (NODE)) 5063 5064 /* CLEANUP_STMT accessors. The statement(s) covered, the cleanup to run 5065 and the VAR_DECL for which this cleanup exists. */ 5066 #define CLEANUP_BODY(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 0) 5067 #define CLEANUP_EXPR(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 1) 5068 #define CLEANUP_DECL(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 2) 5069 5070 /* IF_STMT accessors. These give access to the condition of the if 5071 statement, the then block of the if statement, and the else block 5072 of the if statement if it exists. */ 5073 #define IF_COND(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 0) 5074 #define THEN_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 1) 5075 #define ELSE_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 2) 5076 #define IF_SCOPE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 3) 5077 #define IF_STMT_CONSTEXPR_P(NODE) TREE_LANG_FLAG_0 (IF_STMT_CHECK (NODE)) 5078 5079 /* Like PACK_EXPANSION_EXTRA_ARGS, for constexpr if. IF_SCOPE is used while 5080 building an IF_STMT; IF_STMT_EXTRA_ARGS is used after it is complete. */ 5081 #define IF_STMT_EXTRA_ARGS(NODE) IF_SCOPE (NODE) 5082 5083 /* WHILE_STMT accessors. These give access to the condition of the 5084 while statement and the body of the while statement, respectively. */ 5085 #define WHILE_COND(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 0) 5086 #define WHILE_BODY(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 1) 5087 5088 /* DO_STMT accessors. These give access to the condition of the do 5089 statement and the body of the do statement, respectively. */ 5090 #define DO_COND(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 0) 5091 #define DO_BODY(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 1) 5092 5093 /* FOR_STMT accessors. These give access to the init statement, 5094 condition, update expression, and body of the for statement, 5095 respectively. */ 5096 #define FOR_INIT_STMT(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 0) 5097 #define FOR_COND(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 1) 5098 #define FOR_EXPR(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 2) 5099 #define FOR_BODY(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 3) 5100 #define FOR_SCOPE(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 4) 5101 5102 /* RANGE_FOR_STMT accessors. These give access to the declarator, 5103 expression, body, and scope of the statement, respectively. */ 5104 #define RANGE_FOR_DECL(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 0) 5105 #define RANGE_FOR_EXPR(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 1) 5106 #define RANGE_FOR_BODY(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 2) 5107 #define RANGE_FOR_SCOPE(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 3) 5108 #define RANGE_FOR_UNROLL(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 4) 5109 #define RANGE_FOR_INIT_STMT(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 5) 5110 #define RANGE_FOR_IVDEP(NODE) TREE_LANG_FLAG_6 (RANGE_FOR_STMT_CHECK (NODE)) 5111 5112 #define SWITCH_STMT_COND(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 0) 5113 #define SWITCH_STMT_BODY(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 1) 5114 #define SWITCH_STMT_TYPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 2) 5115 #define SWITCH_STMT_SCOPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 3) 5116 /* True if there are case labels for all possible values of switch cond, either 5117 because there is a default: case label or because the case label ranges cover 5118 all values. */ 5119 #define SWITCH_STMT_ALL_CASES_P(NODE) \ 5120 TREE_LANG_FLAG_0 (SWITCH_STMT_CHECK (NODE)) 5121 /* True if the body of a switch stmt contains no BREAK_STMTs. */ 5122 #define SWITCH_STMT_NO_BREAK_P(NODE) \ 5123 TREE_LANG_FLAG_2 (SWITCH_STMT_CHECK (NODE)) 5124 5125 /* STMT_EXPR accessor. */ 5126 #define STMT_EXPR_STMT(NODE) TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0) 5127 5128 /* EXPR_STMT accessor. This gives the expression associated with an 5129 expression statement. */ 5130 #define EXPR_STMT_EXPR(NODE) TREE_OPERAND (EXPR_STMT_CHECK (NODE), 0) 5131 5132 /* True if this TARGET_EXPR was created by build_cplus_new, and so we can 5133 discard it if it isn't useful. */ 5134 #define TARGET_EXPR_IMPLICIT_P(NODE) \ 5135 TREE_LANG_FLAG_0 (TARGET_EXPR_CHECK (NODE)) 5136 5137 /* True if this TARGET_EXPR is the result of list-initialization of a 5138 temporary. */ 5139 #define TARGET_EXPR_LIST_INIT_P(NODE) \ 5140 TREE_LANG_FLAG_1 (TARGET_EXPR_CHECK (NODE)) 5141 5142 /* True if this TARGET_EXPR expresses direct-initialization of an object 5143 to be named later. */ 5144 #define TARGET_EXPR_DIRECT_INIT_P(NODE) \ 5145 TREE_LANG_FLAG_2 (TARGET_EXPR_CHECK (NODE)) 5146 5147 /* True if NODE is a TARGET_EXPR that just expresses a copy of its INITIAL; if 5148 the initializer has void type, it's doing something more complicated. */ 5149 #define SIMPLE_TARGET_EXPR_P(NODE) \ 5150 (TREE_CODE (NODE) == TARGET_EXPR \ 5151 && TARGET_EXPR_INITIAL (NODE) \ 5152 && !VOID_TYPE_P (TREE_TYPE (TARGET_EXPR_INITIAL (NODE)))) 5153 5154 /* True if EXPR expresses direct-initialization of a TYPE. */ 5155 #define DIRECT_INIT_EXPR_P(TYPE,EXPR) \ 5156 (TREE_CODE (EXPR) == TARGET_EXPR && TREE_LANG_FLAG_2 (EXPR) \ 5157 && same_type_ignoring_top_level_qualifiers_p (TYPE, TREE_TYPE (EXPR))) 5158 5159 /* True if this CONVERT_EXPR is for a conversion to virtual base in 5160 an NSDMI, and should be re-evaluated when used in a constructor. */ 5161 #define CONVERT_EXPR_VBASE_PATH(NODE) \ 5162 TREE_LANG_FLAG_0 (CONVERT_EXPR_CHECK (NODE)) 5163 5164 /* True if SIZEOF_EXPR argument is type. */ 5165 #define SIZEOF_EXPR_TYPE_P(NODE) \ 5166 TREE_LANG_FLAG_0 (SIZEOF_EXPR_CHECK (NODE)) 5167 5168 /* True if the ALIGNOF_EXPR was spelled "alignof". */ 5169 #define ALIGNOF_EXPR_STD_P(NODE) \ 5170 TREE_LANG_FLAG_0 (ALIGNOF_EXPR_CHECK (NODE)) 5171 5172 /* OMP_DEPOBJ accessors. These give access to the depobj expression of the 5173 #pragma omp depobj directive and the clauses, respectively. If 5174 OMP_DEPOBJ_CLAUSES is INTEGER_CST, it is instead the update clause kind 5175 or OMP_CLAUSE_DEPEND_LAST for destroy clause. */ 5176 #define OMP_DEPOBJ_DEPOBJ(NODE) TREE_OPERAND (OMP_DEPOBJ_CHECK (NODE), 0) 5177 #define OMP_DEPOBJ_CLAUSES(NODE) TREE_OPERAND (OMP_DEPOBJ_CHECK (NODE), 1) 5178 5179 /* An enumeration of the kind of tags that C++ accepts. */ 5180 enum tag_types { 5181 none_type = 0, /* Not a tag type. */ 5182 record_type, /* "struct" types. */ 5183 class_type, /* "class" types. */ 5184 union_type, /* "union" types. */ 5185 enum_type, /* "enum" types. */ 5186 typename_type, /* "typename" types. */ 5187 scope_type /* namespace or tagged type name followed by :: */ 5188 }; 5189 5190 /* The various kinds of lvalues we distinguish. */ 5191 enum cp_lvalue_kind_flags { 5192 clk_none = 0, /* Things that are not an lvalue. */ 5193 clk_ordinary = 1, /* An ordinary lvalue. */ 5194 clk_rvalueref = 2,/* An xvalue (rvalue formed using an rvalue reference) */ 5195 clk_class = 4, /* A prvalue of class or array type. */ 5196 clk_bitfield = 8, /* An lvalue for a bit-field. */ 5197 clk_packed = 16 /* An lvalue for a packed field. */ 5198 }; 5199 5200 /* This type is used for parameters and variables which hold 5201 combinations of the flags in enum cp_lvalue_kind_flags. */ 5202 typedef int cp_lvalue_kind; 5203 5204 /* Various kinds of template specialization, instantiation, etc. */ 5205 enum tmpl_spec_kind { 5206 tsk_none, /* Not a template at all. */ 5207 tsk_invalid_member_spec, /* An explicit member template 5208 specialization, but the enclosing 5209 classes have not all been explicitly 5210 specialized. */ 5211 tsk_invalid_expl_inst, /* An explicit instantiation containing 5212 template parameter lists. */ 5213 tsk_excessive_parms, /* A template declaration with too many 5214 template parameter lists. */ 5215 tsk_insufficient_parms, /* A template declaration with too few 5216 parameter lists. */ 5217 tsk_template, /* A template declaration. */ 5218 tsk_expl_spec, /* An explicit specialization. */ 5219 tsk_expl_inst /* An explicit instantiation. */ 5220 }; 5221 5222 /* The various kinds of access. BINFO_ACCESS depends on these being 5223 two bit quantities. The numerical values are important; they are 5224 used to initialize RTTI data structures, so changing them changes 5225 the ABI. */ 5226 enum access_kind { 5227 ak_none = 0, /* Inaccessible. */ 5228 ak_public = 1, /* Accessible, as a `public' thing. */ 5229 ak_protected = 2, /* Accessible, as a `protected' thing. */ 5230 ak_private = 3 /* Accessible, as a `private' thing. */ 5231 }; 5232 5233 /* The various kinds of special functions. If you add to this list, 5234 you should update special_function_p as well. */ 5235 enum special_function_kind { 5236 sfk_none = 0, /* Not a special function. This enumeral 5237 must have value zero; see 5238 special_function_p. */ 5239 /* The following are ordered, for use by member synthesis fns. */ 5240 sfk_destructor, /* A destructor. */ 5241 sfk_constructor, /* A constructor. */ 5242 sfk_inheriting_constructor, /* An inheriting constructor */ 5243 sfk_copy_constructor, /* A copy constructor. */ 5244 sfk_move_constructor, /* A move constructor. */ 5245 sfk_copy_assignment, /* A copy assignment operator. */ 5246 sfk_move_assignment, /* A move assignment operator. */ 5247 /* The following are unordered. */ 5248 sfk_complete_destructor, /* A destructor for complete objects. */ 5249 sfk_base_destructor, /* A destructor for base subobjects. */ 5250 sfk_deleting_destructor, /* A destructor for complete objects that 5251 deletes the object after it has been 5252 destroyed. */ 5253 sfk_conversion, /* A conversion operator. */ 5254 sfk_deduction_guide, /* A class template deduction guide. */ 5255 sfk_comparison, /* A comparison operator (e.g. ==, <, <=>). */ 5256 sfk_virtual_destructor /* Used by member synthesis fns. */ 5257 }; 5258 5259 /* The various kinds of linkage. From [basic.link], 5260 5261 A name is said to have linkage when it might denote the same 5262 object, reference, function, type, template, namespace or value 5263 as a name introduced in another scope: 5264 5265 -- When a name has external linkage, the entity it denotes can 5266 be referred to from scopes of other translation units or from 5267 other scopes of the same translation unit. 5268 5269 -- When a name has internal linkage, the entity it denotes can 5270 be referred to by names from other scopes in the same 5271 translation unit. 5272 5273 -- When a name has no linkage, the entity it denotes cannot be 5274 referred to by names from other scopes. */ 5275 5276 enum linkage_kind { 5277 lk_none, /* No linkage. */ 5278 lk_internal, /* Internal linkage. */ 5279 lk_external /* External linkage. */ 5280 }; 5281 5282 enum duration_kind { 5283 dk_static, 5284 dk_thread, 5285 dk_auto, 5286 dk_dynamic 5287 }; 5288 5289 /* Bitmask flags to control type substitution. */ 5290 enum tsubst_flags { 5291 tf_none = 0, /* nothing special */ 5292 tf_error = 1 << 0, /* give error messages */ 5293 tf_warning = 1 << 1, /* give warnings too */ 5294 tf_ignore_bad_quals = 1 << 2, /* ignore bad cvr qualifiers */ 5295 tf_keep_type_decl = 1 << 3, /* retain typedef type decls 5296 (make_typename_type use) */ 5297 tf_ptrmem_ok = 1 << 4, /* pointers to member ok (internal 5298 instantiate_type use) */ 5299 tf_user = 1 << 5, /* found template must be a user template 5300 (lookup_template_class use) */ 5301 tf_conv = 1 << 6, /* We are determining what kind of 5302 conversion might be permissible, 5303 not actually performing the 5304 conversion. */ 5305 tf_decltype = 1 << 7, /* We are the operand of decltype. 5306 Used to implement the special rules 5307 for calls in decltype (5.2.2/11). */ 5308 tf_partial = 1 << 8, /* Doing initial explicit argument 5309 substitution in fn_type_unification. */ 5310 tf_fndecl_type = 1 << 9, /* Substituting the type of a function 5311 declaration. */ 5312 tf_no_cleanup = 1 << 10, /* Do not build a cleanup 5313 (build_target_expr and friends) */ 5314 tf_norm = 1 << 11, /* Build diagnostic information during 5315 constraint normalization. */ 5316 /* Convenient substitution flags combinations. */ 5317 tf_warning_or_error = tf_warning | tf_error 5318 }; 5319 5320 /* This type is used for parameters and variables which hold 5321 combinations of the flags in enum tsubst_flags. */ 5322 typedef int tsubst_flags_t; 5323 5324 /* The kind of checking we can do looking in a class hierarchy. */ 5325 enum base_access_flags { 5326 ba_any = 0, /* Do not check access, allow an ambiguous base, 5327 prefer a non-virtual base */ 5328 ba_unique = 1 << 0, /* Must be a unique base. */ 5329 ba_check_bit = 1 << 1, /* Check access. */ 5330 ba_check = ba_unique | ba_check_bit, 5331 ba_ignore_scope = 1 << 2 /* Ignore access allowed by local scope. */ 5332 }; 5333 5334 /* This type is used for parameters and variables which hold 5335 combinations of the flags in enum base_access_flags. */ 5336 typedef int base_access; 5337 5338 /* The various kinds of access check during parsing. */ 5339 enum deferring_kind { 5340 dk_no_deferred = 0, /* Check access immediately */ 5341 dk_deferred = 1, /* Deferred check */ 5342 dk_no_check = 2 /* No access check */ 5343 }; 5344 5345 /* The kind of base we can find, looking in a class hierarchy. 5346 Values <0 indicate we failed. */ 5347 enum base_kind { 5348 bk_inaccessible = -3, /* The base is inaccessible */ 5349 bk_ambig = -2, /* The base is ambiguous */ 5350 bk_not_base = -1, /* It is not a base */ 5351 bk_same_type = 0, /* It is the same type */ 5352 bk_proper_base = 1, /* It is a proper base */ 5353 bk_via_virtual = 2 /* It is a proper base, but via a virtual 5354 path. This might not be the canonical 5355 binfo. */ 5356 }; 5357 5358 /* Node for "pointer to (virtual) function". 5359 This may be distinct from ptr_type_node so gdb can distinguish them. */ 5360 #define vfunc_ptr_type_node vtable_entry_type 5361 5362 5363 /* For building calls to `delete'. */ 5364 extern GTY(()) tree integer_two_node; 5365 5366 /* The number of function bodies which we are currently processing. 5367 (Zero if we are at namespace scope, one inside the body of a 5368 function, two inside the body of a function in a local class, etc.) */ 5369 extern int function_depth; 5370 5371 /* Nonzero if we are inside eq_specializations, which affects comparison of 5372 PARM_DECLs in cp_tree_equal. */ 5373 extern int comparing_specializations; 5374 5375 /* In parser.c. */ 5376 5377 /* Nonzero if we are parsing an unevaluated operand: an operand to 5378 sizeof, typeof, or alignof. This is a count since operands to 5379 sizeof can be nested. */ 5380 5381 extern int cp_unevaluated_operand; 5382 5383 /* RAII class used to inhibit the evaluation of operands during parsing 5384 and template instantiation. Evaluation warnings are also inhibited. */ 5385 5386 class cp_unevaluated 5387 { 5388 public: 5389 cp_unevaluated (); 5390 ~cp_unevaluated (); 5391 }; 5392 5393 /* The reverse: an RAII class used for nested contexts that are evaluated even 5394 if the enclosing context is not. */ 5395 5396 class cp_evaluated 5397 { 5398 public: 5399 int uneval; 5400 int inhibit; 5401 cp_evaluated () 5402 : uneval(cp_unevaluated_operand), inhibit(c_inhibit_evaluation_warnings) 5403 { cp_unevaluated_operand = c_inhibit_evaluation_warnings = 0; } 5404 ~cp_evaluated () 5405 { cp_unevaluated_operand = uneval; 5406 c_inhibit_evaluation_warnings = inhibit; } 5407 }; 5408 5409 /* in pt.c */ 5410 5411 /* These values are used for the `STRICT' parameter to type_unification and 5412 fn_type_unification. Their meanings are described with the 5413 documentation for fn_type_unification. */ 5414 5415 enum unification_kind_t { 5416 DEDUCE_CALL, 5417 DEDUCE_CONV, 5418 DEDUCE_EXACT 5419 }; 5420 5421 // An RAII class used to create a new pointer map for local 5422 // specializations. When the stack goes out of scope, the 5423 // previous pointer map is restored. 5424 enum lss_policy { lss_blank, lss_copy, lss_nop }; 5425 class local_specialization_stack 5426 { 5427 public: 5428 local_specialization_stack (lss_policy = lss_blank); 5429 ~local_specialization_stack (); 5430 5431 hash_map<tree, tree> *saved; 5432 }; 5433 5434 /* in class.c */ 5435 5436 extern int current_class_depth; 5437 5438 /* in decl.c */ 5439 5440 /* An array of static vars & fns. */ 5441 extern GTY(()) vec<tree, va_gc> *static_decls; 5442 5443 /* An array of vtable-needing types that have no key function, or have 5444 an emitted key function. */ 5445 extern GTY(()) vec<tree, va_gc> *keyed_classes; 5446 5447 /* Here's where we control how name mangling takes place. */ 5448 5449 /* Cannot use '$' up front, because this confuses gdb 5450 (names beginning with '$' are gdb-local identifiers). 5451 5452 Note that all forms in which the '$' is significant are long enough 5453 for direct indexing (meaning that if we know there is a '$' 5454 at a particular location, we can index into the string at 5455 any other location that provides distinguishing characters). */ 5456 5457 /* Define NO_DOT_IN_LABEL in your favorite tm file if your assembler 5458 doesn't allow '.' in symbol names. */ 5459 #ifndef NO_DOT_IN_LABEL 5460 5461 #define JOINER '.' 5462 5463 #define AUTO_TEMP_NAME "_.tmp_" 5464 #define VFIELD_BASE ".vf" 5465 #define VFIELD_NAME "_vptr." 5466 #define VFIELD_NAME_FORMAT "_vptr.%s" 5467 5468 #else /* NO_DOT_IN_LABEL */ 5469 5470 #ifndef NO_DOLLAR_IN_LABEL 5471 5472 #define JOINER '$' 5473 5474 #define AUTO_TEMP_NAME "_$tmp_" 5475 #define VFIELD_BASE "$vf" 5476 #define VFIELD_NAME "_vptr$" 5477 #define VFIELD_NAME_FORMAT "_vptr$%s" 5478 5479 #else /* NO_DOLLAR_IN_LABEL */ 5480 5481 #define VTABLE_NAME "__vt_" 5482 #define VTABLE_NAME_P(ID_NODE) \ 5483 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VTABLE_NAME, \ 5484 sizeof (VTABLE_NAME) - 1)) 5485 #define VFIELD_BASE "__vfb" 5486 #define VFIELD_NAME "__vptr_" 5487 #define VFIELD_NAME_P(ID_NODE) \ 5488 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, \ 5489 sizeof (VFIELD_NAME) - 1)) 5490 #define VFIELD_NAME_FORMAT "__vptr_%s" 5491 5492 #endif /* NO_DOLLAR_IN_LABEL */ 5493 #endif /* NO_DOT_IN_LABEL */ 5494 5495 #define UDLIT_OP_ANSI_PREFIX "operator\"\"" 5496 #define UDLIT_OP_ANSI_FORMAT UDLIT_OP_ANSI_PREFIX "%s" 5497 #define UDLIT_OP_MANGLED_PREFIX "li" 5498 #define UDLIT_OP_MANGLED_FORMAT UDLIT_OP_MANGLED_PREFIX "%s" 5499 #define UDLIT_OPER_P(ID_NODE) \ 5500 (!strncmp (IDENTIFIER_POINTER (ID_NODE), \ 5501 UDLIT_OP_ANSI_PREFIX, \ 5502 sizeof (UDLIT_OP_ANSI_PREFIX) - 1)) 5503 #define UDLIT_OP_SUFFIX(ID_NODE) \ 5504 (IDENTIFIER_POINTER (ID_NODE) + sizeof (UDLIT_OP_ANSI_PREFIX) - 1) 5505 5506 #if !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) 5507 5508 #define VTABLE_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == 'v' \ 5509 && IDENTIFIER_POINTER (ID_NODE)[2] == 't' \ 5510 && IDENTIFIER_POINTER (ID_NODE)[3] == JOINER) 5511 5512 #define VFIELD_NAME_P(ID_NODE) \ 5513 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, sizeof(VFIELD_NAME)-1)) 5514 5515 #endif /* !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) */ 5516 5517 5518 /* Nonzero if we're done parsing and into end-of-file activities. 5519 Two if we're done with front-end processing. */ 5520 5521 extern int at_eof; 5522 5523 /* True if note_mangling_alias should enqueue mangling aliases for 5524 later generation, rather than emitting them right away. */ 5525 5526 extern bool defer_mangling_aliases; 5527 5528 /* True if noexcept is part of the type (i.e. in C++17). */ 5529 5530 extern bool flag_noexcept_type; 5531 5532 /* A list of namespace-scope objects which have constructors or 5533 destructors which reside in the global scope. The decl is stored 5534 in the TREE_VALUE slot and the initializer is stored in the 5535 TREE_PURPOSE slot. */ 5536 extern GTY(()) tree static_aggregates; 5537 /* Likewise, for thread local storage. */ 5538 extern GTY(()) tree tls_aggregates; 5539 5540 enum overload_flags { NO_SPECIAL = 0, DTOR_FLAG, TYPENAME_FLAG }; 5541 5542 /* These are uses as bits in flags passed to various functions to 5543 control their behavior. Despite the LOOKUP_ prefix, many of these 5544 do not control name lookup. ??? Functions using these flags should 5545 probably be modified to accept explicit boolean flags for the 5546 behaviors relevant to them. */ 5547 /* Check for access violations. */ 5548 #define LOOKUP_PROTECT (1 << 0) 5549 #define LOOKUP_NORMAL (LOOKUP_PROTECT) 5550 /* Even if the function found by lookup is a virtual function, it 5551 should be called directly. */ 5552 #define LOOKUP_NONVIRTUAL (1 << 1) 5553 /* Non-converting (i.e., "explicit") constructors are not tried. This flag 5554 indicates that we are not performing direct-initialization. */ 5555 #define LOOKUP_ONLYCONVERTING (1 << 2) 5556 #define LOOKUP_IMPLICIT (LOOKUP_NORMAL | LOOKUP_ONLYCONVERTING) 5557 /* If a temporary is created, it should be created so that it lives 5558 as long as the current variable bindings; otherwise it only lives 5559 until the end of the complete-expression. It also forces 5560 direct-initialization in cases where other parts of the compiler 5561 have already generated a temporary, such as reference 5562 initialization and the catch parameter. */ 5563 #define DIRECT_BIND (1 << 3) 5564 /* We're performing a user-defined conversion, so more user-defined 5565 conversions are not permitted (only built-in conversions). */ 5566 #define LOOKUP_NO_CONVERSION (1 << 4) 5567 /* The user has explicitly called a destructor. (Therefore, we do 5568 not need to check that the object is non-NULL before calling the 5569 destructor.) */ 5570 #define LOOKUP_DESTRUCTOR (1 << 5) 5571 /* Do not permit references to bind to temporaries. */ 5572 #define LOOKUP_NO_TEMP_BIND (1 << 6) 5573 /* Do not accept objects, and possibly namespaces. */ 5574 #define LOOKUP_PREFER_TYPES (1 << 7) 5575 /* Do not accept objects, and possibly types. */ 5576 #define LOOKUP_PREFER_NAMESPACES (1 << 8) 5577 /* Accept types or namespaces. */ 5578 #define LOOKUP_PREFER_BOTH (LOOKUP_PREFER_TYPES | LOOKUP_PREFER_NAMESPACES) 5579 /* Return friend declarations and un-declared builtin functions. 5580 (Normally, these entities are registered in the symbol table, but 5581 not found by lookup.) */ 5582 #define LOOKUP_HIDDEN (LOOKUP_PREFER_NAMESPACES << 1) 5583 /* We're trying to treat an lvalue as an rvalue. */ 5584 #define LOOKUP_PREFER_RVALUE (LOOKUP_HIDDEN << 1) 5585 /* We're inside an init-list, so narrowing conversions are ill-formed. */ 5586 #define LOOKUP_NO_NARROWING (LOOKUP_PREFER_RVALUE << 1) 5587 /* We're looking up a constructor for list-initialization. */ 5588 #define LOOKUP_LIST_INIT_CTOR (LOOKUP_NO_NARROWING << 1) 5589 /* This is the first parameter of a copy constructor. */ 5590 #define LOOKUP_COPY_PARM (LOOKUP_LIST_INIT_CTOR << 1) 5591 /* We only want to consider list constructors. */ 5592 #define LOOKUP_LIST_ONLY (LOOKUP_COPY_PARM << 1) 5593 /* Return after determining which function to call and checking access. 5594 Used by sythesized_method_walk to determine which functions will 5595 be called to initialize subobjects, in order to determine exception 5596 specification and possible implicit delete. 5597 This is kind of a hack, but exiting early avoids problems with trying 5598 to perform argument conversions when the class isn't complete yet. */ 5599 #define LOOKUP_SPECULATIVE (LOOKUP_LIST_ONLY << 1) 5600 /* Used by calls from defaulted functions to limit the overload set to avoid 5601 cycles trying to declare them (core issue 1092). */ 5602 #define LOOKUP_DEFAULTED (LOOKUP_SPECULATIVE << 1) 5603 /* Used in calls to store_init_value to suppress its usual call to 5604 digest_init. */ 5605 #define LOOKUP_ALREADY_DIGESTED (LOOKUP_DEFAULTED << 1) 5606 /* An instantiation with explicit template arguments. */ 5607 #define LOOKUP_EXPLICIT_TMPL_ARGS (LOOKUP_ALREADY_DIGESTED << 1) 5608 /* Like LOOKUP_NO_TEMP_BIND, but also prevent binding to xvalues. */ 5609 #define LOOKUP_NO_RVAL_BIND (LOOKUP_EXPLICIT_TMPL_ARGS << 1) 5610 /* Used by case_conversion to disregard non-integral conversions. */ 5611 #define LOOKUP_NO_NON_INTEGRAL (LOOKUP_NO_RVAL_BIND << 1) 5612 /* Used for delegating constructors in order to diagnose self-delegation. */ 5613 #define LOOKUP_DELEGATING_CONS (LOOKUP_NO_NON_INTEGRAL << 1) 5614 /* Allow initialization of a flexible array members. */ 5615 #define LOOKUP_ALLOW_FLEXARRAY_INIT (LOOKUP_DELEGATING_CONS << 1) 5616 /* Require constant initialization of a non-constant variable. */ 5617 #define LOOKUP_CONSTINIT (LOOKUP_ALLOW_FLEXARRAY_INIT << 1) 5618 /* We're looking for either a rewritten comparison operator candidate or the 5619 operator to use on the former's result. We distinguish between the two by 5620 knowing that comparisons other than == and <=> must be the latter, as must 5621 a <=> expression trying to rewrite to <=> without reversing. */ 5622 #define LOOKUP_REWRITTEN (LOOKUP_CONSTINIT << 1) 5623 /* Reverse the order of the two arguments for comparison rewriting. First we 5624 swap the arguments in add_operator_candidates, then we swap the conversions 5625 in add_candidate (so that they correspond to the original order of the 5626 args), then we swap the conversions back in build_new_op_1 (so they 5627 correspond to the order of the args in the candidate). */ 5628 #define LOOKUP_REVERSED (LOOKUP_REWRITTEN << 1) 5629 /* We're initializing an aggregate from a parenthesized list of values. */ 5630 #define LOOKUP_AGGREGATE_PAREN_INIT (LOOKUP_REVERSED << 1) 5631 5632 #define LOOKUP_NAMESPACES_ONLY(F) \ 5633 (((F) & LOOKUP_PREFER_NAMESPACES) && !((F) & LOOKUP_PREFER_TYPES)) 5634 #define LOOKUP_TYPES_ONLY(F) \ 5635 (!((F) & LOOKUP_PREFER_NAMESPACES) && ((F) & LOOKUP_PREFER_TYPES)) 5636 #define LOOKUP_QUALIFIERS_ONLY(F) ((F) & LOOKUP_PREFER_BOTH) 5637 5638 5639 /* These flags are used by the conversion code. 5640 CONV_IMPLICIT : Perform implicit conversions (standard and user-defined). 5641 CONV_STATIC : Perform the explicit conversions for static_cast. 5642 CONV_CONST : Perform the explicit conversions for const_cast. 5643 CONV_REINTERPRET: Perform the explicit conversions for reinterpret_cast. 5644 CONV_PRIVATE : Perform upcasts to private bases. 5645 CONV_FORCE_TEMP : Require a new temporary when converting to the same 5646 aggregate type. */ 5647 5648 #define CONV_IMPLICIT 1 5649 #define CONV_STATIC 2 5650 #define CONV_CONST 4 5651 #define CONV_REINTERPRET 8 5652 #define CONV_PRIVATE 16 5653 #define CONV_FORCE_TEMP 32 5654 #define CONV_FOLD 64 5655 #define CONV_OLD_CONVERT (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \ 5656 | CONV_REINTERPRET) 5657 #define CONV_C_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \ 5658 | CONV_REINTERPRET | CONV_PRIVATE | CONV_FORCE_TEMP) 5659 #define CONV_BACKEND_CONVERT (CONV_OLD_CONVERT | CONV_FOLD) 5660 5661 /* Used by build_expr_type_conversion to indicate which types are 5662 acceptable as arguments to the expression under consideration. */ 5663 5664 #define WANT_INT 1 /* integer types, including bool */ 5665 #define WANT_FLOAT 2 /* floating point types */ 5666 #define WANT_ENUM 4 /* enumerated types */ 5667 #define WANT_POINTER 8 /* pointer types */ 5668 #define WANT_NULL 16 /* null pointer constant */ 5669 #define WANT_VECTOR_OR_COMPLEX 32 /* vector or complex types */ 5670 #define WANT_ARITH (WANT_INT | WANT_FLOAT | WANT_VECTOR_OR_COMPLEX) 5671 5672 /* Used with comptypes, and related functions, to guide type 5673 comparison. */ 5674 5675 #define COMPARE_STRICT 0 /* Just check if the types are the 5676 same. */ 5677 #define COMPARE_BASE 1 /* Check to see if the second type is 5678 derived from the first. */ 5679 #define COMPARE_DERIVED 2 /* Like COMPARE_BASE, but in 5680 reverse. */ 5681 #define COMPARE_REDECLARATION 4 /* The comparison is being done when 5682 another declaration of an existing 5683 entity is seen. */ 5684 #define COMPARE_STRUCTURAL 8 /* The comparison is intended to be 5685 structural. The actual comparison 5686 will be identical to 5687 COMPARE_STRICT. */ 5688 5689 /* Used with start function. */ 5690 #define SF_DEFAULT 0 /* No flags. */ 5691 #define SF_PRE_PARSED 1 /* The function declaration has 5692 already been parsed. */ 5693 #define SF_INCLASS_INLINE 2 /* The function is an inline, defined 5694 in the class body. */ 5695 5696 /* Used with start_decl's initialized parameter. */ 5697 #define SD_UNINITIALIZED 0 5698 #define SD_INITIALIZED 1 5699 #define SD_DEFAULTED 2 5700 #define SD_DELETED 3 5701 5702 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, or if TYPE2 5703 is derived from TYPE1, or if TYPE2 is a pointer (reference) to a 5704 class derived from the type pointed to (referred to) by TYPE1. */ 5705 #define same_or_base_type_p(TYPE1, TYPE2) \ 5706 comptypes ((TYPE1), (TYPE2), COMPARE_BASE) 5707 5708 /* These macros are used to access a TEMPLATE_PARM_INDEX. */ 5709 #define TEMPLATE_PARM_INDEX_CAST(NODE) \ 5710 ((template_parm_index*)TEMPLATE_PARM_INDEX_CHECK (NODE)) 5711 #define TEMPLATE_PARM_IDX(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->index) 5712 #define TEMPLATE_PARM_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->level) 5713 #define TEMPLATE_PARM_DESCENDANTS(NODE) (TREE_CHAIN (NODE)) 5714 #define TEMPLATE_PARM_ORIG_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->orig_level) 5715 #define TEMPLATE_PARM_DECL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->decl) 5716 #define TEMPLATE_PARM_PARAMETER_PACK(NODE) \ 5717 (TREE_LANG_FLAG_0 (TEMPLATE_PARM_INDEX_CHECK (NODE))) 5718 5719 /* These macros are for accessing the fields of TEMPLATE_TYPE_PARM, 5720 TEMPLATE_TEMPLATE_PARM and BOUND_TEMPLATE_TEMPLATE_PARM nodes. */ 5721 #define TEMPLATE_TYPE_PARM_INDEX(NODE) \ 5722 (TYPE_VALUES_RAW (TREE_CHECK3 ((NODE), TEMPLATE_TYPE_PARM, \ 5723 TEMPLATE_TEMPLATE_PARM, \ 5724 BOUND_TEMPLATE_TEMPLATE_PARM))) 5725 #define TEMPLATE_TYPE_IDX(NODE) \ 5726 (TEMPLATE_PARM_IDX (TEMPLATE_TYPE_PARM_INDEX (NODE))) 5727 #define TEMPLATE_TYPE_LEVEL(NODE) \ 5728 (TEMPLATE_PARM_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE))) 5729 #define TEMPLATE_TYPE_ORIG_LEVEL(NODE) \ 5730 (TEMPLATE_PARM_ORIG_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE))) 5731 #define TEMPLATE_TYPE_DECL(NODE) \ 5732 (TEMPLATE_PARM_DECL (TEMPLATE_TYPE_PARM_INDEX (NODE))) 5733 #define TEMPLATE_TYPE_PARAMETER_PACK(NODE) \ 5734 (TEMPLATE_PARM_PARAMETER_PACK (TEMPLATE_TYPE_PARM_INDEX (NODE))) 5735 5736 /* For a C++17 class deduction placeholder, the template it represents. */ 5737 #define CLASS_PLACEHOLDER_TEMPLATE(NODE) \ 5738 (DECL_INITIAL (TYPE_NAME (TEMPLATE_TYPE_PARM_CHECK (NODE)))) 5739 5740 /* Contexts in which auto deduction occurs. These flags are 5741 used to control diagnostics in do_auto_deduction. */ 5742 5743 enum auto_deduction_context 5744 { 5745 adc_unspecified, /* Not given */ 5746 adc_variable_type, /* Variable initializer deduction */ 5747 adc_return_type, /* Return type deduction */ 5748 adc_unify, /* Template argument deduction */ 5749 adc_requirement, /* Argument deduction constraint */ 5750 adc_decomp_type /* Decomposition declaration initializer deduction */ 5751 }; 5752 5753 /* True if this type-parameter belongs to a class template, used by C++17 5754 class template argument deduction. */ 5755 #define TEMPLATE_TYPE_PARM_FOR_CLASS(NODE) \ 5756 (TREE_LANG_FLAG_0 (TEMPLATE_TYPE_PARM_CHECK (NODE))) 5757 5758 /* True iff this TEMPLATE_TYPE_PARM represents decltype(auto). */ 5759 #define AUTO_IS_DECLTYPE(NODE) \ 5760 (TYPE_LANG_FLAG_5 (TEMPLATE_TYPE_PARM_CHECK (NODE))) 5761 5762 /* These constants can used as bit flags in the process of tree formatting. 5763 5764 TFF_PLAIN_IDENTIFIER: unqualified part of a name. 5765 TFF_SCOPE: include the class and namespace scope of the name. 5766 TFF_CHASE_TYPEDEF: print the original type-id instead of the typedef-name. 5767 TFF_DECL_SPECIFIERS: print decl-specifiers. 5768 TFF_CLASS_KEY_OR_ENUM: precede a class-type name (resp. enum name) with 5769 a class-key (resp. `enum'). 5770 TFF_RETURN_TYPE: include function return type. 5771 TFF_FUNCTION_DEFAULT_ARGUMENTS: include function default parameter values. 5772 TFF_EXCEPTION_SPECIFICATION: show function exception specification. 5773 TFF_TEMPLATE_HEADER: show the template<...> header in a 5774 template-declaration. 5775 TFF_TEMPLATE_NAME: show only template-name. 5776 TFF_EXPR_IN_PARENS: parenthesize expressions. 5777 TFF_NO_FUNCTION_ARGUMENTS: don't show function arguments. 5778 TFF_UNQUALIFIED_NAME: do not print the qualifying scope of the 5779 top-level entity. 5780 TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS: do not omit template arguments 5781 identical to their defaults. 5782 TFF_NO_TEMPLATE_BINDINGS: do not print information about the template 5783 arguments for a function template specialization. 5784 TFF_POINTER: we are printing a pointer type. */ 5785 5786 #define TFF_PLAIN_IDENTIFIER (0) 5787 #define TFF_SCOPE (1) 5788 #define TFF_CHASE_TYPEDEF (1 << 1) 5789 #define TFF_DECL_SPECIFIERS (1 << 2) 5790 #define TFF_CLASS_KEY_OR_ENUM (1 << 3) 5791 #define TFF_RETURN_TYPE (1 << 4) 5792 #define TFF_FUNCTION_DEFAULT_ARGUMENTS (1 << 5) 5793 #define TFF_EXCEPTION_SPECIFICATION (1 << 6) 5794 #define TFF_TEMPLATE_HEADER (1 << 7) 5795 #define TFF_TEMPLATE_NAME (1 << 8) 5796 #define TFF_EXPR_IN_PARENS (1 << 9) 5797 #define TFF_NO_FUNCTION_ARGUMENTS (1 << 10) 5798 #define TFF_UNQUALIFIED_NAME (1 << 11) 5799 #define TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS (1 << 12) 5800 #define TFF_NO_TEMPLATE_BINDINGS (1 << 13) 5801 #define TFF_POINTER (1 << 14) 5802 5803 /* These constants can be used as bit flags to control strip_typedefs. 5804 5805 STF_USER_VISIBLE: use heuristics to try to avoid stripping user-facing 5806 aliases of internal details. This is intended for diagnostics, 5807 where it should (for example) give more useful "aka" types. 5808 5809 STF_STRIP_DEPENDENT: allow the stripping of aliases with dependent 5810 template parameters, relying on code elsewhere to report any 5811 appropriate diagnostics. */ 5812 const unsigned int STF_USER_VISIBLE = 1U; 5813 const unsigned int STF_STRIP_DEPENDENT = 1U << 1; 5814 5815 /* Returns the TEMPLATE_DECL associated to a TEMPLATE_TEMPLATE_PARM 5816 node. */ 5817 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_DECL(NODE) \ 5818 ((TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM) \ 5819 ? TYPE_TI_TEMPLATE (NODE) \ 5820 : TYPE_NAME (NODE)) 5821 5822 /* in lex.c */ 5823 5824 extern void init_reswords (void); 5825 5826 /* Various flags for the overloaded operator information. */ 5827 enum ovl_op_flags 5828 { 5829 OVL_OP_FLAG_NONE = 0, /* Don't care. */ 5830 OVL_OP_FLAG_UNARY = 1, /* Is unary. */ 5831 OVL_OP_FLAG_BINARY = 2, /* Is binary. */ 5832 OVL_OP_FLAG_AMBIARY = 3, /* May be unary or binary. */ 5833 OVL_OP_FLAG_ALLOC = 4, /* operator new or delete. */ 5834 OVL_OP_FLAG_DELETE = 1, /* operator delete. */ 5835 OVL_OP_FLAG_VEC = 2 /* vector new or delete. */ 5836 }; 5837 5838 /* Compressed operator codes. Order is determined by operators.def 5839 and does not match that of tree_codes. */ 5840 enum ovl_op_code 5841 { 5842 OVL_OP_ERROR_MARK, 5843 OVL_OP_NOP_EXPR, 5844 #define DEF_OPERATOR(NAME, CODE, MANGLING, FLAGS) OVL_OP_##CODE, 5845 #define DEF_ASSN_OPERATOR(NAME, CODE, MANGLING) /* NOTHING */ 5846 #include "operators.def" 5847 OVL_OP_MAX 5848 }; 5849 5850 struct GTY(()) ovl_op_info_t { 5851 /* The IDENTIFIER_NODE for the operator. */ 5852 tree identifier; 5853 /* The name of the operator. */ 5854 const char *name; 5855 /* The mangled name of the operator. */ 5856 const char *mangled_name; 5857 /* The (regular) tree code. */ 5858 enum tree_code tree_code : 16; 5859 /* The (compressed) operator code. */ 5860 enum ovl_op_code ovl_op_code : 8; 5861 /* The ovl_op_flags of the operator */ 5862 unsigned flags : 8; 5863 }; 5864 5865 /* Overloaded operator info indexed by ass_op_p & ovl_op_code. */ 5866 extern GTY(()) ovl_op_info_t ovl_op_info[2][OVL_OP_MAX]; 5867 /* Mapping from tree_codes to ovl_op_codes. */ 5868 extern GTY(()) unsigned char ovl_op_mapping[MAX_TREE_CODES]; 5869 /* Mapping for ambi-ary operators from the binary to the unary. */ 5870 extern GTY(()) unsigned char ovl_op_alternate[OVL_OP_MAX]; 5871 5872 /* Given an ass_op_p boolean and a tree code, return a pointer to its 5873 overloaded operator info. Tree codes for non-overloaded operators 5874 map to the error-operator. */ 5875 #define OVL_OP_INFO(IS_ASS_P, TREE_CODE) \ 5876 (&ovl_op_info[(IS_ASS_P) != 0][ovl_op_mapping[(TREE_CODE)]]) 5877 /* Overloaded operator info for an identifier for which 5878 IDENTIFIER_OVL_OP_P is true. */ 5879 #define IDENTIFIER_OVL_OP_INFO(NODE) \ 5880 (&ovl_op_info[IDENTIFIER_KIND_BIT_0 (NODE)][IDENTIFIER_CP_INDEX (NODE)]) 5881 #define IDENTIFIER_OVL_OP_FLAGS(NODE) \ 5882 (IDENTIFIER_OVL_OP_INFO (NODE)->flags) 5883 5884 inline tree ovl_op_identifier (bool isass, tree_code code) 5885 { return OVL_OP_INFO(isass, code)->identifier; } 5886 inline tree ovl_op_identifier (tree_code code) { return ovl_op_identifier (false, code); } 5887 #define assign_op_identifier (ovl_op_info[true][OVL_OP_NOP_EXPR].identifier) 5888 #define call_op_identifier (ovl_op_info[false][OVL_OP_CALL_EXPR].identifier) 5889 5890 /* A type-qualifier, or bitmask therefore, using the TYPE_QUAL 5891 constants. */ 5892 5893 typedef int cp_cv_quals; 5894 5895 /* Non-static member functions have an optional virt-specifier-seq. 5896 There is a VIRT_SPEC value for each virt-specifier. 5897 They can be combined by bitwise-or to form the complete set of 5898 virt-specifiers for a member function. */ 5899 enum virt_specifier 5900 { 5901 VIRT_SPEC_UNSPECIFIED = 0x0, 5902 VIRT_SPEC_FINAL = 0x1, 5903 VIRT_SPEC_OVERRIDE = 0x2 5904 }; 5905 5906 /* A type-qualifier, or bitmask therefore, using the VIRT_SPEC 5907 constants. */ 5908 5909 typedef int cp_virt_specifiers; 5910 5911 /* Wherever there is a function-cv-qual, there could also be a ref-qualifier: 5912 5913 [dcl.fct] 5914 The return type, the parameter-type-list, the ref-qualifier, and 5915 the cv-qualifier-seq, but not the default arguments or the exception 5916 specification, are part of the function type. 5917 5918 REF_QUAL_NONE Ordinary member function with no ref-qualifier 5919 REF_QUAL_LVALUE Member function with the &-ref-qualifier 5920 REF_QUAL_RVALUE Member function with the &&-ref-qualifier */ 5921 5922 enum cp_ref_qualifier { 5923 REF_QUAL_NONE = 0, 5924 REF_QUAL_LVALUE = 1, 5925 REF_QUAL_RVALUE = 2 5926 }; 5927 5928 /* A storage class. */ 5929 5930 enum cp_storage_class { 5931 /* sc_none must be zero so that zeroing a cp_decl_specifier_seq 5932 sets the storage_class field to sc_none. */ 5933 sc_none = 0, 5934 sc_auto, 5935 sc_register, 5936 sc_static, 5937 sc_extern, 5938 sc_mutable 5939 }; 5940 5941 /* An individual decl-specifier. This is used to index the array of 5942 locations for the declspecs in struct cp_decl_specifier_seq 5943 below. */ 5944 5945 enum cp_decl_spec { 5946 ds_first, 5947 ds_signed = ds_first, 5948 ds_unsigned, 5949 ds_short, 5950 ds_long, 5951 ds_const, 5952 ds_volatile, 5953 ds_restrict, 5954 ds_inline, 5955 ds_virtual, 5956 ds_explicit, 5957 ds_friend, 5958 ds_typedef, 5959 ds_alias, 5960 ds_constexpr, 5961 ds_complex, 5962 ds_constinit, 5963 ds_consteval, 5964 ds_thread, 5965 ds_type_spec, 5966 ds_redefined_builtin_type_spec, 5967 ds_attribute, 5968 ds_std_attribute, 5969 ds_storage_class, 5970 ds_long_long, 5971 ds_concept, 5972 ds_last /* This enumerator must always be the last one. */ 5973 }; 5974 5975 /* A decl-specifier-seq. */ 5976 5977 struct cp_decl_specifier_seq { 5978 /* An array of locations for the declaration sepecifiers, indexed by 5979 enum cp_decl_spec_word. */ 5980 location_t locations[ds_last]; 5981 /* The primary type, if any, given by the decl-specifier-seq. 5982 Modifiers, like "short", "const", and "unsigned" are not 5983 reflected here. This field will be a TYPE, unless a typedef-name 5984 was used, in which case it will be a TYPE_DECL. */ 5985 tree type; 5986 /* The attributes, if any, provided with the specifier sequence. */ 5987 tree attributes; 5988 /* The c++11 attributes that follows the type specifier. */ 5989 tree std_attributes; 5990 /* If non-NULL, a built-in type that the user attempted to redefine 5991 to some other type. */ 5992 tree redefined_builtin_type; 5993 /* The explicit-specifier, if any. */ 5994 tree explicit_specifier; 5995 /* The storage class specified -- or sc_none if no storage class was 5996 explicitly specified. */ 5997 cp_storage_class storage_class; 5998 /* For the __intN declspec, this stores the index into the int_n_* arrays. */ 5999 int int_n_idx; 6000 /* True iff TYPE_SPEC defines a class or enum. */ 6001 BOOL_BITFIELD type_definition_p : 1; 6002 /* True iff multiple types were (erroneously) specified for this 6003 decl-specifier-seq. */ 6004 BOOL_BITFIELD multiple_types_p : 1; 6005 /* True iff multiple storage classes were (erroneously) specified 6006 for this decl-specifier-seq or a combination of a storage class 6007 with a typedef specifier. */ 6008 BOOL_BITFIELD conflicting_specifiers_p : 1; 6009 /* True iff at least one decl-specifier was found. */ 6010 BOOL_BITFIELD any_specifiers_p : 1; 6011 /* True iff at least one type-specifier was found. */ 6012 BOOL_BITFIELD any_type_specifiers_p : 1; 6013 /* True iff "int" was explicitly provided. */ 6014 BOOL_BITFIELD explicit_int_p : 1; 6015 /* True iff "__intN" was explicitly provided. */ 6016 BOOL_BITFIELD explicit_intN_p : 1; 6017 /* True iff "char" was explicitly provided. */ 6018 BOOL_BITFIELD explicit_char_p : 1; 6019 /* True iff ds_thread is set for __thread, not thread_local. */ 6020 BOOL_BITFIELD gnu_thread_keyword_p : 1; 6021 /* True iff the type is a decltype. */ 6022 BOOL_BITFIELD decltype_p : 1; 6023 /* True iff the alternate "__intN__" form of the __intN type has been 6024 used. */ 6025 BOOL_BITFIELD int_n_alt: 1; 6026 }; 6027 6028 /* The various kinds of declarators. */ 6029 6030 enum cp_declarator_kind { 6031 cdk_id, 6032 cdk_function, 6033 cdk_array, 6034 cdk_pointer, 6035 cdk_reference, 6036 cdk_ptrmem, 6037 cdk_decomp, 6038 cdk_error 6039 }; 6040 6041 /* A declarator. */ 6042 6043 typedef struct cp_declarator cp_declarator; 6044 6045 typedef struct cp_parameter_declarator cp_parameter_declarator; 6046 6047 /* A parameter, before it has been semantically analyzed. */ 6048 struct cp_parameter_declarator { 6049 /* The next parameter, or NULL_TREE if none. */ 6050 cp_parameter_declarator *next; 6051 /* The decl-specifiers-seq for the parameter. */ 6052 cp_decl_specifier_seq decl_specifiers; 6053 /* The declarator for the parameter. */ 6054 cp_declarator *declarator; 6055 /* The default-argument expression, or NULL_TREE, if none. */ 6056 tree default_argument; 6057 /* True iff this is a template parameter pack. */ 6058 bool template_parameter_pack_p; 6059 /* Location within source. */ 6060 location_t loc; 6061 }; 6062 6063 /* A declarator. */ 6064 struct cp_declarator { 6065 /* The kind of declarator. */ 6066 ENUM_BITFIELD (cp_declarator_kind) kind : 4; 6067 /* Whether we parsed an ellipsis (`...') just before the declarator, 6068 to indicate this is a parameter pack. */ 6069 BOOL_BITFIELD parameter_pack_p : 1; 6070 /* If this declarator is parenthesized, this the open-paren. It is 6071 UNKNOWN_LOCATION when not parenthesized. */ 6072 location_t parenthesized; 6073 6074 location_t id_loc; /* Currently only set for cdk_id, cdk_decomp and 6075 cdk_function. */ 6076 /* GNU Attributes that apply to this declarator. If the declarator 6077 is a pointer or a reference, these attribute apply to the type 6078 pointed to. */ 6079 tree attributes; 6080 /* Standard C++11 attributes that apply to this declarator. If the 6081 declarator is a pointer or a reference, these attributes apply 6082 to the pointer, rather than to the type pointed to. */ 6083 tree std_attributes; 6084 /* For all but cdk_id, cdk_decomp and cdk_error, the contained declarator. 6085 For cdk_id, cdk_decomp and cdk_error, guaranteed to be NULL. */ 6086 cp_declarator *declarator; 6087 union { 6088 /* For identifiers. */ 6089 struct { 6090 /* If non-NULL, the qualifying scope (a NAMESPACE_DECL or 6091 *_TYPE) for this identifier. */ 6092 tree qualifying_scope; 6093 /* The unqualified name of the entity -- an IDENTIFIER_NODE, 6094 BIT_NOT_EXPR, or TEMPLATE_ID_EXPR. */ 6095 tree unqualified_name; 6096 /* If this is the name of a function, what kind of special 6097 function (if any). */ 6098 special_function_kind sfk; 6099 } id; 6100 /* For functions. */ 6101 struct { 6102 /* The parameters to the function as a TREE_LIST of decl/default. */ 6103 tree parameters; 6104 /* The cv-qualifiers for the function. */ 6105 cp_cv_quals qualifiers; 6106 /* The virt-specifiers for the function. */ 6107 cp_virt_specifiers virt_specifiers; 6108 /* The ref-qualifier for the function. */ 6109 cp_ref_qualifier ref_qualifier; 6110 /* The transaction-safety qualifier for the function. */ 6111 tree tx_qualifier; 6112 /* The exception-specification for the function. */ 6113 tree exception_specification; 6114 /* The late-specified return type, if any. */ 6115 tree late_return_type; 6116 /* The trailing requires-clause, if any. */ 6117 tree requires_clause; 6118 } function; 6119 /* For arrays. */ 6120 struct { 6121 /* The bounds to the array. */ 6122 tree bounds; 6123 } array; 6124 /* For cdk_pointer and cdk_ptrmem. */ 6125 struct { 6126 /* The cv-qualifiers for the pointer. */ 6127 cp_cv_quals qualifiers; 6128 /* For cdk_ptrmem, the class type containing the member. */ 6129 tree class_type; 6130 } pointer; 6131 /* For cdk_reference */ 6132 struct { 6133 /* The cv-qualifiers for the reference. These qualifiers are 6134 only used to diagnose ill-formed code. */ 6135 cp_cv_quals qualifiers; 6136 /* Whether this is an rvalue reference */ 6137 bool rvalue_ref; 6138 } reference; 6139 } u; 6140 }; 6141 6142 /* A level of template instantiation. */ 6143 struct GTY((chain_next ("%h.next"))) tinst_level { 6144 /* The immediately deeper level in the chain. */ 6145 struct tinst_level *next; 6146 6147 /* The original node. TLDCL can be a DECL (for a function or static 6148 data member), a TYPE (for a class), depending on what we were 6149 asked to instantiate, or a TREE_LIST with the template as PURPOSE 6150 and the template args as VALUE, if we are substituting for 6151 overload resolution. In all these cases, TARGS is NULL. 6152 However, to avoid creating TREE_LIST objects for substitutions if 6153 we can help, we store PURPOSE and VALUE in TLDCL and TARGS, 6154 respectively. So TLDCL stands for TREE_LIST or DECL (the 6155 template is a DECL too), whereas TARGS stands for the template 6156 arguments. */ 6157 tree tldcl, targs; 6158 6159 private: 6160 /* Return TRUE iff the original node is a split list. */ 6161 bool split_list_p () const { return targs; } 6162 6163 /* Return TRUE iff the original node is a TREE_LIST object. */ 6164 bool tree_list_p () const 6165 { 6166 return !split_list_p () && TREE_CODE (tldcl) == TREE_LIST; 6167 } 6168 6169 /* Return TRUE iff the original node is not a list, split or not. */ 6170 bool not_list_p () const 6171 { 6172 return !split_list_p () && !tree_list_p (); 6173 } 6174 6175 /* Convert (in place) the original node from a split list to a 6176 TREE_LIST. */ 6177 tree to_list (); 6178 6179 public: 6180 /* Release storage for OBJ and node, if it's a TREE_LIST. */ 6181 static void free (tinst_level *obj); 6182 6183 /* Return TRUE iff the original node is a list, split or not. */ 6184 bool list_p () const { return !not_list_p (); } 6185 6186 /* Return the original node; if it's a split list, make it a 6187 TREE_LIST first, so that it can be returned as a single tree 6188 object. */ 6189 tree get_node () { 6190 if (!split_list_p ()) return tldcl; 6191 else return to_list (); 6192 } 6193 6194 /* Return the original node if it's a DECL or a TREE_LIST, but do 6195 NOT convert a split list to a TREE_LIST: return NULL instead. */ 6196 tree maybe_get_node () const { 6197 if (!split_list_p ()) return tldcl; 6198 else return NULL_TREE; 6199 } 6200 6201 /* The location where the template is instantiated. */ 6202 location_t locus; 6203 6204 /* errorcount + sorrycount when we pushed this level. */ 6205 unsigned short errors; 6206 6207 /* Count references to this object. If refcount reaches 6208 refcount_infinity value, we don't increment or decrement the 6209 refcount anymore, as the refcount isn't accurate anymore. 6210 The object can be still garbage collected if unreferenced from 6211 anywhere, which might keep referenced objects referenced longer than 6212 otherwise necessary. Hitting the infinity is rare though. */ 6213 unsigned short refcount; 6214 6215 /* Infinity value for the above refcount. */ 6216 static const unsigned short refcount_infinity = (unsigned short) ~0; 6217 }; 6218 6219 /* BUILT_IN_FRONTEND function codes. */ 6220 enum cp_built_in_function { 6221 CP_BUILT_IN_IS_CONSTANT_EVALUATED, 6222 CP_BUILT_IN_INTEGER_PACK, 6223 CP_BUILT_IN_SOURCE_LOCATION, 6224 CP_BUILT_IN_LAST 6225 }; 6226 6227 bool decl_spec_seq_has_spec_p (const cp_decl_specifier_seq *, cp_decl_spec); 6228 6229 /* Return the type of the `this' parameter of FNTYPE. */ 6230 6231 inline tree 6232 type_of_this_parm (const_tree fntype) 6233 { 6234 function_args_iterator iter; 6235 gcc_assert (TREE_CODE (fntype) == METHOD_TYPE); 6236 function_args_iter_init (&iter, fntype); 6237 return function_args_iter_cond (&iter); 6238 } 6239 6240 /* Return the class of the `this' parameter of FNTYPE. */ 6241 6242 inline tree 6243 class_of_this_parm (const_tree fntype) 6244 { 6245 return TREE_TYPE (type_of_this_parm (fntype)); 6246 } 6247 6248 /* A parameter list indicating for a function with no parameters, 6249 e.g "int f(void)". */ 6250 extern cp_parameter_declarator *no_parameters; 6251 6252 /* Various dump ids. */ 6253 extern int class_dump_id; 6254 extern int raw_dump_id; 6255 6256 /* in call.c */ 6257 extern bool check_dtor_name (tree, tree); 6258 int magic_varargs_p (tree); 6259 6260 extern tree build_conditional_expr (const op_location_t &, 6261 tree, tree, tree, 6262 tsubst_flags_t); 6263 extern tree build_addr_func (tree, tsubst_flags_t); 6264 extern void set_flags_from_callee (tree); 6265 extern tree build_call_a (tree, int, tree*); 6266 extern tree build_call_n (tree, int, ...); 6267 extern bool null_ptr_cst_p (tree); 6268 extern bool null_member_pointer_value_p (tree); 6269 extern bool sufficient_parms_p (const_tree); 6270 extern tree type_decays_to (tree); 6271 extern tree extract_call_expr (tree); 6272 extern tree build_trivial_dtor_call (tree); 6273 extern tree build_user_type_conversion (tree, tree, int, 6274 tsubst_flags_t); 6275 extern tree build_new_function_call (tree, vec<tree, va_gc> **, 6276 tsubst_flags_t); 6277 extern tree build_operator_new_call (tree, vec<tree, va_gc> **, 6278 tree *, tree *, tree, tree, 6279 tree *, tsubst_flags_t); 6280 extern tree build_new_method_call (tree, tree, 6281 vec<tree, va_gc> **, tree, 6282 int, tree *, tsubst_flags_t); 6283 extern tree build_special_member_call (tree, tree, 6284 vec<tree, va_gc> **, 6285 tree, int, tsubst_flags_t); 6286 extern tree build_new_op (const op_location_t &, 6287 enum tree_code, 6288 int, tree, tree, tree, tree *, 6289 tsubst_flags_t); 6290 extern tree build_op_call (tree, vec<tree, va_gc> **, 6291 tsubst_flags_t); 6292 extern bool aligned_allocation_fn_p (tree); 6293 extern tree destroying_delete_p (tree); 6294 extern bool usual_deallocation_fn_p (tree); 6295 extern tree build_op_delete_call (enum tree_code, tree, tree, 6296 bool, tree, tree, 6297 tsubst_flags_t); 6298 extern bool can_convert (tree, tree, tsubst_flags_t); 6299 extern bool can_convert_standard (tree, tree, tsubst_flags_t); 6300 extern bool can_convert_arg (tree, tree, tree, int, 6301 tsubst_flags_t); 6302 extern bool can_convert_arg_bad (tree, tree, tree, int, 6303 tsubst_flags_t); 6304 extern int conv_flags (int, int, tree, tree, int); 6305 extern struct conversion * good_conversion (tree, tree, tree, int, tsubst_flags_t); 6306 extern location_t get_fndecl_argument_location (tree, int); 6307 extern void complain_about_bad_argument (location_t arg_loc, 6308 tree from_type, tree to_type, 6309 tree fndecl, int parmnum); 6310 extern void maybe_inform_about_fndecl_for_bogus_argument_init (tree, int); 6311 6312 6313 /* A class for recording information about access failures (e.g. private 6314 fields), so that we can potentially supply a fix-it hint about 6315 an accessor (from a context in which the constness of the object 6316 is known). */ 6317 6318 class access_failure_info 6319 { 6320 public: 6321 access_failure_info () : m_was_inaccessible (false), 6322 m_basetype_path (NULL_TREE), 6323 m_decl (NULL_TREE), m_diag_decl (NULL_TREE) {} 6324 6325 void record_access_failure (tree basetype_path, tree decl, tree diag_decl); 6326 6327 bool was_inaccessible_p () const { return m_was_inaccessible; } 6328 tree get_decl () const { return m_decl; } 6329 tree get_diag_decl () const { return m_diag_decl; } 6330 tree get_any_accessor (bool const_p) const; 6331 void maybe_suggest_accessor (bool const_p) const; 6332 static void add_fixit_hint (rich_location *richloc, tree accessor); 6333 6334 private: 6335 bool m_was_inaccessible; 6336 tree m_basetype_path; 6337 tree m_decl; 6338 tree m_diag_decl; 6339 }; 6340 6341 extern void complain_about_access (tree, tree, bool); 6342 extern bool enforce_access (tree, tree, tree, 6343 tsubst_flags_t, 6344 access_failure_info *afi = NULL); 6345 extern void push_defarg_context (tree); 6346 extern void pop_defarg_context (void); 6347 extern tree convert_default_arg (tree, tree, tree, int, 6348 tsubst_flags_t); 6349 extern tree convert_arg_to_ellipsis (tree, tsubst_flags_t); 6350 extern tree build_x_va_arg (location_t, tree, tree); 6351 extern tree cxx_type_promotes_to (tree); 6352 extern tree type_passed_as (tree); 6353 extern tree convert_for_arg_passing (tree, tree, tsubst_flags_t); 6354 extern bool is_properly_derived_from (tree, tree); 6355 extern tree initialize_reference (tree, tree, int, 6356 tsubst_flags_t); 6357 extern tree extend_ref_init_temps (tree, tree, 6358 vec<tree, va_gc>**, 6359 tree * = NULL); 6360 extern tree make_temporary_var_for_ref_to_temp (tree, tree); 6361 extern bool type_has_extended_temps (tree); 6362 extern tree strip_top_quals (tree); 6363 extern bool reference_related_p (tree, tree); 6364 extern bool reference_compatible_p (tree, tree); 6365 extern int remaining_arguments (tree); 6366 extern tree perform_implicit_conversion (tree, tree, tsubst_flags_t); 6367 extern tree perform_implicit_conversion_flags (tree, tree, tsubst_flags_t, int); 6368 extern tree build_converted_constant_expr (tree, tree, tsubst_flags_t); 6369 extern tree build_converted_constant_bool_expr (tree, tsubst_flags_t); 6370 extern tree perform_direct_initialization_if_possible (tree, tree, bool, 6371 tsubst_flags_t); 6372 extern vec<tree,va_gc> *resolve_args (vec<tree,va_gc>*, tsubst_flags_t); 6373 extern tree in_charge_arg_for_name (tree); 6374 extern tree build_cxx_call (tree, int, tree *, 6375 tsubst_flags_t, 6376 tree = NULL_TREE); 6377 extern bool is_std_init_list (tree); 6378 extern bool is_list_ctor (tree); 6379 extern void validate_conversion_obstack (void); 6380 extern void mark_versions_used (tree); 6381 extern bool unsafe_return_slot_p (tree); 6382 extern bool cp_warn_deprecated_use (tree, tsubst_flags_t = tf_warning_or_error); 6383 extern void cp_warn_deprecated_use_scopes (tree); 6384 extern tree get_function_version_dispatcher (tree); 6385 6386 /* in class.c */ 6387 extern tree build_vfield_ref (tree, tree); 6388 extern tree build_if_in_charge (tree true_stmt, tree false_stmt = void_node); 6389 extern tree build_base_path (enum tree_code, tree, 6390 tree, int, tsubst_flags_t); 6391 extern tree convert_to_base (tree, tree, bool, bool, 6392 tsubst_flags_t); 6393 extern tree convert_to_base_statically (tree, tree); 6394 extern tree build_vtbl_ref (tree, tree); 6395 extern tree build_vfn_ref (tree, tree); 6396 extern tree get_vtable_decl (tree, int); 6397 extern bool add_method (tree, tree, bool); 6398 extern tree declared_access (tree); 6399 extern tree currently_open_class (tree); 6400 extern tree currently_open_derived_class (tree); 6401 extern tree outermost_open_class (void); 6402 extern tree current_nonlambda_class_type (void); 6403 extern tree finish_struct (tree, tree); 6404 extern void finish_struct_1 (tree); 6405 extern int resolves_to_fixed_type_p (tree, int * = NULL); 6406 extern void init_class_processing (void); 6407 extern int is_empty_class (tree); 6408 extern bool is_really_empty_class (tree, bool); 6409 extern void pushclass (tree); 6410 extern void popclass (void); 6411 extern void push_nested_class (tree); 6412 extern void pop_nested_class (void); 6413 extern int current_lang_depth (void); 6414 extern void push_lang_context (tree); 6415 extern void pop_lang_context (void); 6416 extern tree instantiate_type (tree, tree, tsubst_flags_t); 6417 extern void build_self_reference (void); 6418 extern int same_signature_p (const_tree, const_tree); 6419 extern tree lookup_vfn_in_binfo (tree, tree); 6420 extern void maybe_add_class_template_decl_list (tree, tree, int); 6421 extern void unreverse_member_declarations (tree); 6422 extern void invalidate_class_lookup_cache (void); 6423 extern void maybe_note_name_used_in_class (tree, tree); 6424 extern void note_name_declared_in_class (tree, tree); 6425 extern tree get_vtbl_decl_for_binfo (tree); 6426 extern bool vptr_via_virtual_p (tree); 6427 extern void debug_class (tree); 6428 extern void debug_thunks (tree); 6429 extern void set_linkage_according_to_type (tree, tree); 6430 extern void determine_key_method (tree); 6431 extern void check_for_override (tree, tree); 6432 extern void push_class_stack (void); 6433 extern void pop_class_stack (void); 6434 extern bool default_ctor_p (const_tree); 6435 extern bool type_has_user_nondefault_constructor (tree); 6436 extern tree in_class_defaulted_default_constructor (tree); 6437 extern bool user_provided_p (tree); 6438 extern bool type_has_user_provided_constructor (tree); 6439 extern bool type_has_non_user_provided_default_constructor (tree); 6440 extern bool vbase_has_user_provided_move_assign (tree); 6441 extern tree default_init_uninitialized_part (tree); 6442 extern bool trivial_default_constructor_is_constexpr (tree); 6443 extern bool type_has_constexpr_default_constructor (tree); 6444 extern bool type_has_constexpr_destructor (tree); 6445 extern bool type_has_virtual_destructor (tree); 6446 extern bool classtype_has_move_assign_or_move_ctor_p (tree, bool user_declared); 6447 extern bool classtype_has_non_deleted_move_ctor (tree); 6448 extern bool classtype_has_non_deleted_copy_ctor (tree); 6449 extern tree classtype_has_depr_implicit_copy (tree); 6450 extern bool classtype_has_op (tree, tree_code); 6451 extern tree classtype_has_defaulted_op (tree, tree_code); 6452 extern bool type_build_ctor_call (tree); 6453 extern bool type_build_dtor_call (tree); 6454 extern void explain_non_literal_class (tree); 6455 extern void inherit_targ_abi_tags (tree); 6456 extern void defaulted_late_check (tree); 6457 extern bool defaultable_fn_check (tree); 6458 extern void check_abi_tags (tree); 6459 extern tree missing_abi_tags (tree); 6460 extern void fixup_type_variants (tree); 6461 extern void fixup_attribute_variants (tree); 6462 extern tree copy_fndecl_with_name (tree, tree); 6463 extern void clone_function_decl (tree, bool); 6464 extern void adjust_clone_args (tree); 6465 extern void deduce_noexcept_on_destructor (tree); 6466 extern bool uniquely_derived_from_p (tree, tree); 6467 extern bool publicly_uniquely_derived_p (tree, tree); 6468 extern tree common_enclosing_class (tree, tree); 6469 6470 /* in cvt.c */ 6471 extern tree convert_to_reference (tree, tree, int, int, tree, 6472 tsubst_flags_t); 6473 extern tree convert_from_reference (tree); 6474 extern tree force_rvalue (tree, tsubst_flags_t); 6475 extern tree ocp_convert (tree, tree, int, int, 6476 tsubst_flags_t); 6477 extern tree cp_convert (tree, tree, tsubst_flags_t); 6478 extern tree cp_convert_and_check (tree, tree, tsubst_flags_t); 6479 extern tree cp_fold_convert (tree, tree); 6480 extern tree cp_get_callee (tree); 6481 extern tree cp_get_callee_fndecl (tree); 6482 extern tree cp_get_callee_fndecl_nofold (tree); 6483 extern tree cp_get_fndecl_from_callee (tree, bool fold = true); 6484 extern tree convert_to_void (tree, impl_conv_void, 6485 tsubst_flags_t); 6486 extern tree convert_force (tree, tree, int, 6487 tsubst_flags_t); 6488 extern tree build_expr_type_conversion (int, tree, bool); 6489 extern tree type_promotes_to (tree); 6490 extern bool can_convert_qual (tree, tree); 6491 extern tree perform_qualification_conversions (tree, tree); 6492 extern bool tx_safe_fn_type_p (tree); 6493 extern tree tx_unsafe_fn_variant (tree); 6494 extern bool fnptr_conv_p (tree, tree); 6495 extern tree strip_fnptr_conv (tree); 6496 6497 /* in name-lookup.c */ 6498 extern void maybe_push_cleanup_level (tree); 6499 extern tree maybe_push_decl (tree); 6500 extern tree current_decl_namespace (void); 6501 6502 /* decl.c */ 6503 extern tree poplevel (int, int, int); 6504 extern void cxx_init_decl_processing (void); 6505 enum cp_tree_node_structure_enum cp_tree_node_structure 6506 (union lang_tree_node *); 6507 extern void finish_scope (void); 6508 extern void push_switch (tree); 6509 extern void pop_switch (void); 6510 extern void note_break_stmt (void); 6511 extern bool note_iteration_stmt_body_start (void); 6512 extern void note_iteration_stmt_body_end (bool); 6513 extern void determine_local_discriminator (tree); 6514 extern int decls_match (tree, tree, bool = true); 6515 extern bool maybe_version_functions (tree, tree, bool); 6516 extern tree duplicate_decls (tree, tree, bool); 6517 extern tree declare_local_label (tree); 6518 extern tree define_label (location_t, tree); 6519 extern void check_goto (tree); 6520 extern bool check_omp_return (void); 6521 extern tree make_typename_type (tree, tree, enum tag_types, tsubst_flags_t); 6522 extern tree build_typename_type (tree, tree, tree, tag_types); 6523 extern tree make_unbound_class_template (tree, tree, tree, tsubst_flags_t); 6524 extern tree build_library_fn_ptr (const char *, tree, int); 6525 extern tree build_cp_library_fn_ptr (const char *, tree, int); 6526 extern tree push_library_fn (tree, tree, tree, int); 6527 extern tree push_void_library_fn (tree, tree, int); 6528 extern tree push_throw_library_fn (tree, tree); 6529 extern void warn_misplaced_attr_for_class_type (location_t location, 6530 tree class_type); 6531 extern tree check_tag_decl (cp_decl_specifier_seq *, bool); 6532 extern tree shadow_tag (cp_decl_specifier_seq *); 6533 extern tree groktypename (cp_decl_specifier_seq *, const cp_declarator *, bool); 6534 extern tree start_decl (const cp_declarator *, cp_decl_specifier_seq *, int, tree, tree, tree *); 6535 extern void start_decl_1 (tree, bool); 6536 extern bool check_array_initializer (tree, tree, tree); 6537 extern void omp_declare_variant_finalize (tree, tree); 6538 extern void cp_finish_decl (tree, tree, bool, tree, int); 6539 extern tree lookup_decomp_type (tree); 6540 extern void cp_maybe_mangle_decomp (tree, tree, unsigned int); 6541 extern void cp_finish_decomp (tree, tree, unsigned int); 6542 extern int cp_complete_array_type (tree *, tree, bool); 6543 extern int cp_complete_array_type_or_error (tree *, tree, bool, tsubst_flags_t); 6544 extern tree build_ptrmemfunc_type (tree); 6545 extern tree build_ptrmem_type (tree, tree); 6546 /* the grokdeclarator prototype is in decl.h */ 6547 extern tree build_this_parm (tree, tree, cp_cv_quals); 6548 extern tree grokparms (tree, tree *); 6549 extern int copy_fn_p (const_tree); 6550 extern bool move_fn_p (const_tree); 6551 extern bool move_signature_fn_p (const_tree); 6552 extern tree get_scope_of_declarator (const cp_declarator *); 6553 extern void grok_special_member_properties (tree); 6554 extern bool grok_ctor_properties (const_tree, const_tree); 6555 extern bool grok_op_properties (tree, bool); 6556 extern tree xref_tag (enum tag_types, tree, tag_scope, bool); 6557 extern tree xref_tag_from_type (tree, tree, tag_scope); 6558 extern void xref_basetypes (tree, tree); 6559 extern tree start_enum (tree, tree, tree, tree, bool, bool *); 6560 extern void finish_enum_value_list (tree); 6561 extern void finish_enum (tree); 6562 extern void build_enumerator (tree, tree, tree, tree, location_t); 6563 extern tree lookup_enumerator (tree, tree); 6564 extern bool start_preparsed_function (tree, tree, int); 6565 extern bool start_function (cp_decl_specifier_seq *, 6566 const cp_declarator *, tree); 6567 extern tree begin_function_body (void); 6568 extern void finish_function_body (tree); 6569 extern tree outer_curly_brace_block (tree); 6570 extern tree finish_function (bool); 6571 extern tree grokmethod (cp_decl_specifier_seq *, const cp_declarator *, tree); 6572 extern void maybe_register_incomplete_var (tree); 6573 extern void maybe_commonize_var (tree); 6574 extern void complete_vars (tree); 6575 extern tree static_fn_type (tree); 6576 extern void revert_static_member_fn (tree); 6577 extern void fixup_anonymous_aggr (tree); 6578 extern tree compute_array_index_type (tree, tree, tsubst_flags_t); 6579 extern tree check_default_argument (tree, tree, tsubst_flags_t); 6580 extern int wrapup_namespace_globals (); 6581 extern tree create_implicit_typedef (tree, tree); 6582 extern int local_variable_p (const_tree); 6583 extern tree register_dtor_fn (tree); 6584 extern tmpl_spec_kind current_tmpl_spec_kind (int); 6585 extern tree cp_fname_init (const char *, tree *); 6586 extern tree cxx_builtin_function (tree decl); 6587 extern tree cxx_builtin_function_ext_scope (tree decl); 6588 extern tree cxx_simulate_builtin_function_decl (tree); 6589 extern tree check_elaborated_type_specifier (enum tag_types, tree, bool); 6590 extern void warn_extern_redeclared_static (tree, tree); 6591 extern tree cxx_comdat_group (tree); 6592 extern bool cp_missing_noreturn_ok_p (tree); 6593 extern bool is_direct_enum_init (tree, tree); 6594 extern void initialize_artificial_var (tree, vec<constructor_elt, va_gc> *); 6595 extern tree check_var_type (tree, tree, location_t); 6596 extern tree reshape_init (tree, tree, tsubst_flags_t); 6597 extern tree next_initializable_field (tree); 6598 extern tree fndecl_declared_return_type (tree); 6599 extern bool undeduced_auto_decl (tree); 6600 extern bool require_deduced_type (tree, tsubst_flags_t = tf_warning_or_error); 6601 6602 extern tree finish_case_label (location_t, tree, tree); 6603 extern tree cxx_maybe_build_cleanup (tree, tsubst_flags_t); 6604 extern bool check_array_designated_initializer (constructor_elt *, 6605 unsigned HOST_WIDE_INT); 6606 extern bool check_for_uninitialized_const_var (tree, bool, tsubst_flags_t); 6607 extern tree build_explicit_specifier (tree, tsubst_flags_t); 6608 extern void do_push_parm_decls (tree, tree, tree *); 6609 6610 /* in decl2.c */ 6611 extern void record_mangling (tree, bool); 6612 extern void overwrite_mangling (tree, tree); 6613 extern void note_mangling_alias (tree, tree); 6614 extern void generate_mangling_aliases (void); 6615 extern tree build_memfn_type (tree, tree, cp_cv_quals, cp_ref_qualifier); 6616 extern tree build_pointer_ptrmemfn_type (tree); 6617 extern tree change_return_type (tree, tree); 6618 extern void maybe_retrofit_in_chrg (tree); 6619 extern void maybe_make_one_only (tree); 6620 extern bool vague_linkage_p (tree); 6621 extern void grokclassfn (tree, tree, 6622 enum overload_flags); 6623 extern tree grok_array_decl (location_t, tree, tree, bool); 6624 extern tree delete_sanity (location_t, tree, tree, bool, 6625 int, tsubst_flags_t); 6626 extern tree check_classfn (tree, tree, tree); 6627 extern void check_member_template (tree); 6628 extern tree grokfield (const cp_declarator *, cp_decl_specifier_seq *, 6629 tree, bool, tree, tree); 6630 extern tree grokbitfield (const cp_declarator *, cp_decl_specifier_seq *, 6631 tree, tree, tree); 6632 extern tree splice_template_attributes (tree *, tree); 6633 extern bool any_dependent_type_attributes_p (tree); 6634 extern tree cp_reconstruct_complex_type (tree, tree); 6635 extern bool attributes_naming_typedef_ok (tree); 6636 extern void cplus_decl_attributes (tree *, tree, int); 6637 extern void finish_anon_union (tree); 6638 extern void cxx_post_compilation_parsing_cleanups (void); 6639 extern tree coerce_new_type (tree, location_t); 6640 extern void coerce_delete_type (tree, location_t); 6641 extern void comdat_linkage (tree); 6642 extern void determine_visibility (tree); 6643 extern void constrain_class_visibility (tree); 6644 extern void reset_type_linkage (tree); 6645 extern void tentative_decl_linkage (tree); 6646 extern void import_export_decl (tree); 6647 extern tree build_cleanup (tree); 6648 extern tree build_offset_ref_call_from_tree (tree, vec<tree, va_gc> **, 6649 tsubst_flags_t); 6650 extern bool decl_defined_p (tree); 6651 extern bool decl_constant_var_p (tree); 6652 extern bool decl_maybe_constant_var_p (tree); 6653 extern void no_linkage_error (tree); 6654 extern void check_default_args (tree); 6655 extern bool mark_used (tree); 6656 extern bool mark_used (tree, tsubst_flags_t); 6657 extern void finish_static_data_member_decl (tree, tree, bool, tree, int); 6658 extern tree cp_build_parm_decl (tree, tree, tree); 6659 extern void copy_linkage (tree, tree); 6660 extern tree get_guard (tree); 6661 extern tree get_guard_cond (tree, bool); 6662 extern tree set_guard (tree); 6663 extern tree maybe_get_tls_wrapper_call (tree); 6664 extern void mark_needed (tree); 6665 extern bool decl_needed_p (tree); 6666 extern void note_vague_linkage_fn (tree); 6667 extern void note_variable_template_instantiation (tree); 6668 extern tree build_artificial_parm (tree, tree, tree); 6669 extern bool possibly_inlined_p (tree); 6670 extern int parm_index (tree); 6671 extern tree vtv_start_verification_constructor_init_function (void); 6672 extern tree vtv_finish_verification_constructor_init_function (tree); 6673 extern bool cp_omp_mappable_type (tree); 6674 extern bool cp_omp_emit_unmappable_type_notes (tree); 6675 extern void cp_check_const_attributes (tree); 6676 6677 /* in error.c */ 6678 extern const char *type_as_string (tree, int); 6679 extern const char *type_as_string_translate (tree, int); 6680 extern const char *decl_as_string (tree, int); 6681 extern const char *decl_as_string_translate (tree, int); 6682 extern const char *decl_as_dwarf_string (tree, int); 6683 extern const char *expr_as_string (tree, int); 6684 extern const char *expr_to_string (tree); 6685 extern const char *lang_decl_name (tree, int, bool); 6686 extern const char *lang_decl_dwarf_name (tree, int, bool); 6687 extern const char *language_to_string (enum languages); 6688 extern const char *class_key_or_enum_as_string (tree); 6689 extern void maybe_warn_variadic_templates (void); 6690 extern void maybe_warn_cpp0x (cpp0x_warn_str str); 6691 extern bool pedwarn_cxx98 (location_t, int, const char *, ...) ATTRIBUTE_GCC_DIAG(3,4); 6692 extern location_t location_of (tree); 6693 extern void qualified_name_lookup_error (tree, tree, tree, 6694 location_t); 6695 6696 /* in except.c */ 6697 extern void init_exception_processing (void); 6698 extern tree expand_start_catch_block (tree); 6699 extern void expand_end_catch_block (void); 6700 extern tree build_exc_ptr (void); 6701 extern tree build_throw (location_t, tree); 6702 extern int nothrow_libfn_p (const_tree); 6703 extern void check_handlers (tree); 6704 extern tree finish_noexcept_expr (tree, tsubst_flags_t); 6705 extern bool expr_noexcept_p (tree, tsubst_flags_t); 6706 extern void perform_deferred_noexcept_checks (void); 6707 extern bool nothrow_spec_p (const_tree); 6708 extern bool type_noexcept_p (const_tree); 6709 extern bool type_throw_all_p (const_tree); 6710 extern tree build_noexcept_spec (tree, tsubst_flags_t); 6711 extern void choose_personality_routine (enum languages); 6712 extern tree build_must_not_throw_expr (tree,tree); 6713 extern tree eh_type_info (tree); 6714 extern tree begin_eh_spec_block (void); 6715 extern void finish_eh_spec_block (tree, tree); 6716 extern tree build_eh_type_type (tree); 6717 extern tree cp_protect_cleanup_actions (void); 6718 extern void maybe_splice_retval_cleanup (tree); 6719 extern tree maybe_set_retval_sentinel (void); 6720 6721 extern tree template_parms_to_args (tree); 6722 extern tree template_parms_level_to_args (tree); 6723 extern tree generic_targs_for (tree); 6724 6725 /* in expr.c */ 6726 extern tree cplus_expand_constant (tree); 6727 extern tree mark_use (tree expr, bool rvalue_p, bool read_p, 6728 location_t = UNKNOWN_LOCATION, 6729 bool reject_builtin = true); 6730 extern tree mark_rvalue_use (tree, 6731 location_t = UNKNOWN_LOCATION, 6732 bool reject_builtin = true); 6733 extern tree mark_lvalue_use (tree); 6734 extern tree mark_lvalue_use_nonread (tree); 6735 extern tree mark_type_use (tree); 6736 extern tree mark_discarded_use (tree); 6737 extern void mark_exp_read (tree); 6738 6739 /* friend.c */ 6740 extern int is_friend (tree, tree); 6741 extern void make_friend_class (tree, tree, bool); 6742 extern void add_friend (tree, tree, bool); 6743 extern tree do_friend (tree, tree, tree, tree, 6744 enum overload_flags, bool); 6745 6746 extern void set_global_friend (tree); 6747 extern bool is_global_friend (tree); 6748 6749 /* in init.c */ 6750 extern tree expand_member_init (tree); 6751 extern void emit_mem_initializers (tree); 6752 extern tree build_aggr_init (tree, tree, int, 6753 tsubst_flags_t); 6754 extern int is_class_type (tree, int); 6755 extern tree get_type_value (tree); 6756 extern tree build_zero_init (tree, tree, bool); 6757 extern tree build_value_init (tree, tsubst_flags_t); 6758 extern tree build_value_init_noctor (tree, tsubst_flags_t); 6759 extern tree get_nsdmi (tree, bool, tsubst_flags_t); 6760 extern tree build_offset_ref (tree, tree, bool, 6761 tsubst_flags_t); 6762 extern tree throw_bad_array_new_length (void); 6763 extern bool type_has_new_extended_alignment (tree); 6764 extern unsigned malloc_alignment (void); 6765 extern tree build_new_constexpr_heap_type (tree, tree, tree); 6766 extern tree build_new (location_t, 6767 vec<tree, va_gc> **, tree, 6768 tree, vec<tree, va_gc> **, 6769 int, tsubst_flags_t); 6770 extern tree get_temp_regvar (tree, tree); 6771 extern tree build_vec_init (tree, tree, tree, bool, int, 6772 tsubst_flags_t); 6773 extern tree build_delete (location_t, tree, tree, 6774 special_function_kind, 6775 int, int, tsubst_flags_t); 6776 extern void push_base_cleanups (void); 6777 extern tree build_vec_delete (location_t, tree, tree, 6778 special_function_kind, int, 6779 tsubst_flags_t); 6780 extern tree create_temporary_var (tree); 6781 extern void initialize_vtbl_ptrs (tree); 6782 extern tree scalar_constant_value (tree); 6783 extern tree decl_constant_value (tree, bool); 6784 extern tree decl_really_constant_value (tree, bool = true); 6785 extern int diagnose_uninitialized_cst_or_ref_member (tree, bool, bool); 6786 extern tree build_vtbl_address (tree); 6787 extern bool maybe_reject_flexarray_init (tree, tree); 6788 6789 /* in lex.c */ 6790 extern void cxx_dup_lang_specific_decl (tree); 6791 extern void yyungetc (int, int); 6792 6793 extern tree unqualified_name_lookup_error (tree, 6794 location_t = UNKNOWN_LOCATION); 6795 extern tree unqualified_fn_lookup_error (cp_expr); 6796 extern tree make_conv_op_name (tree); 6797 extern tree build_lang_decl (enum tree_code, tree, tree); 6798 extern tree build_lang_decl_loc (location_t, enum tree_code, tree, tree); 6799 extern void retrofit_lang_decl (tree); 6800 extern void fit_decomposition_lang_decl (tree, tree); 6801 extern tree copy_decl (tree CXX_MEM_STAT_INFO); 6802 extern tree copy_type (tree CXX_MEM_STAT_INFO); 6803 extern tree cxx_make_type (enum tree_code CXX_MEM_STAT_INFO); 6804 extern tree make_class_type (enum tree_code CXX_MEM_STAT_INFO); 6805 extern const char *get_identifier_kind_name (tree); 6806 extern void set_identifier_kind (tree, cp_identifier_kind); 6807 extern bool cxx_init (void); 6808 extern void cxx_finish (void); 6809 extern bool in_main_input_context (void); 6810 6811 /* in method.c */ 6812 extern void init_method (void); 6813 extern tree make_thunk (tree, bool, tree, tree); 6814 extern void finish_thunk (tree); 6815 extern void use_thunk (tree, bool); 6816 extern bool trivial_fn_p (tree); 6817 extern tree forward_parm (tree); 6818 extern bool is_trivially_xible (enum tree_code, tree, tree); 6819 extern bool is_xible (enum tree_code, tree, tree); 6820 extern tree get_defaulted_eh_spec (tree, tsubst_flags_t = tf_warning_or_error); 6821 extern void after_nsdmi_defaulted_late_checks (tree); 6822 extern bool maybe_explain_implicit_delete (tree); 6823 extern void explain_implicit_non_constexpr (tree); 6824 extern void deduce_inheriting_ctor (tree); 6825 extern bool decl_remember_implicit_trigger_p (tree); 6826 extern void synthesize_method (tree); 6827 extern tree lazily_declare_fn (special_function_kind, 6828 tree); 6829 extern tree skip_artificial_parms_for (const_tree, tree); 6830 extern int num_artificial_parms_for (const_tree); 6831 extern tree make_alias_for (tree, tree); 6832 extern tree get_copy_ctor (tree, tsubst_flags_t); 6833 extern tree get_copy_assign (tree); 6834 extern tree get_default_ctor (tree); 6835 extern tree get_dtor (tree, tsubst_flags_t); 6836 extern tree strip_inheriting_ctors (tree); 6837 extern tree inherited_ctor_binfo (tree); 6838 extern bool ctor_omit_inherited_parms (tree); 6839 extern tree locate_ctor (tree); 6840 extern tree implicitly_declare_fn (special_function_kind, tree, 6841 bool, tree, tree); 6842 6843 /* In optimize.c */ 6844 extern bool maybe_clone_body (tree); 6845 6846 /* In parser.c */ 6847 extern tree cp_convert_range_for (tree, tree, tree, tree, unsigned int, bool, 6848 unsigned short); 6849 extern void cp_convert_omp_range_for (tree &, vec<tree, va_gc> *, tree &, 6850 tree &, tree &, tree &, tree &, tree &); 6851 extern void cp_finish_omp_range_for (tree, tree); 6852 extern bool parsing_nsdmi (void); 6853 extern bool parsing_default_capturing_generic_lambda_in_template (void); 6854 extern void inject_this_parameter (tree, cp_cv_quals); 6855 extern location_t defparse_location (tree); 6856 extern void maybe_show_extern_c_location (void); 6857 extern bool literal_integer_zerop (const_tree); 6858 6859 /* in pt.c */ 6860 extern void push_access_scope (tree); 6861 extern void pop_access_scope (tree); 6862 extern bool check_template_shadow (tree); 6863 extern bool check_auto_in_tmpl_args (tree, tree); 6864 extern tree get_innermost_template_args (tree, int); 6865 extern void maybe_begin_member_template_processing (tree); 6866 extern void maybe_end_member_template_processing (void); 6867 extern tree finish_member_template_decl (tree); 6868 extern void begin_template_parm_list (void); 6869 extern bool begin_specialization (void); 6870 extern void reset_specialization (void); 6871 extern void end_specialization (void); 6872 extern void begin_explicit_instantiation (void); 6873 extern void end_explicit_instantiation (void); 6874 extern void check_unqualified_spec_or_inst (tree, location_t); 6875 extern tree check_explicit_specialization (tree, tree, int, int, 6876 tree = NULL_TREE); 6877 extern int num_template_headers_for_class (tree); 6878 extern void check_template_variable (tree); 6879 extern tree make_auto (void); 6880 extern tree make_decltype_auto (void); 6881 extern tree make_constrained_auto (tree, tree); 6882 extern tree make_constrained_decltype_auto (tree, tree); 6883 extern tree make_template_placeholder (tree); 6884 extern bool template_placeholder_p (tree); 6885 extern bool ctad_template_p (tree); 6886 extern tree do_auto_deduction (tree, tree, tree, 6887 tsubst_flags_t 6888 = tf_warning_or_error, 6889 auto_deduction_context 6890 = adc_unspecified, 6891 tree = NULL_TREE, 6892 int = LOOKUP_NORMAL); 6893 extern tree type_uses_auto (tree); 6894 extern tree type_uses_auto_or_concept (tree); 6895 extern void append_type_to_template_for_access_check (tree, tree, tree, 6896 location_t); 6897 extern tree convert_generic_types_to_packs (tree, int, int); 6898 extern tree splice_late_return_type (tree, tree); 6899 extern bool is_auto (const_tree); 6900 extern tree process_template_parm (tree, location_t, tree, 6901 bool, bool); 6902 extern tree end_template_parm_list (tree); 6903 extern void end_template_parm_list (void); 6904 extern void end_template_decl (void); 6905 extern tree maybe_update_decl_type (tree, tree); 6906 extern bool check_default_tmpl_args (tree, tree, bool, bool, int); 6907 extern tree push_template_decl (tree); 6908 extern tree push_template_decl_real (tree, bool); 6909 extern tree add_inherited_template_parms (tree, tree); 6910 extern void template_parm_level_and_index (tree, int*, int*); 6911 extern bool redeclare_class_template (tree, tree, tree); 6912 extern tree lookup_template_class (tree, tree, tree, tree, 6913 int, tsubst_flags_t); 6914 extern tree lookup_template_function (tree, tree); 6915 extern tree lookup_template_variable (tree, tree); 6916 extern int uses_template_parms (tree); 6917 extern bool uses_template_parms_level (tree, int); 6918 extern bool in_template_function (void); 6919 extern bool need_generic_capture (void); 6920 extern tree instantiate_class_template (tree); 6921 extern tree instantiate_template (tree, tree, tsubst_flags_t); 6922 extern tree fn_type_unification (tree, tree, tree, 6923 const tree *, unsigned int, 6924 tree, unification_kind_t, int, 6925 struct conversion **, 6926 bool, bool); 6927 extern void mark_decl_instantiated (tree, int); 6928 extern int more_specialized_fn (tree, tree, int); 6929 extern void do_decl_instantiation (tree, tree); 6930 extern void do_type_instantiation (tree, tree, tsubst_flags_t); 6931 extern bool always_instantiate_p (tree); 6932 extern bool maybe_instantiate_noexcept (tree, tsubst_flags_t = tf_warning_or_error); 6933 extern tree instantiate_decl (tree, bool, bool); 6934 extern int comp_template_parms (const_tree, const_tree); 6935 extern bool template_heads_equivalent_p (const_tree, const_tree); 6936 extern bool builtin_pack_fn_p (tree); 6937 extern tree uses_parameter_packs (tree); 6938 extern bool template_parameter_pack_p (const_tree); 6939 extern bool function_parameter_pack_p (const_tree); 6940 extern bool function_parameter_expanded_from_pack_p (tree, tree); 6941 extern tree make_pack_expansion (tree, tsubst_flags_t = tf_warning_or_error); 6942 extern bool check_for_bare_parameter_packs (tree, location_t = UNKNOWN_LOCATION); 6943 extern tree build_template_info (tree, tree); 6944 extern tree get_template_info (const_tree); 6945 extern vec<qualified_typedef_usage_t, va_gc> *get_types_needing_access_check (tree); 6946 extern int template_class_depth (tree); 6947 extern int is_specialization_of (tree, tree); 6948 extern bool is_specialization_of_friend (tree, tree); 6949 extern tree get_pattern_parm (tree, tree); 6950 extern int comp_template_args (tree, tree, tree * = NULL, 6951 tree * = NULL, bool = false); 6952 extern int template_args_equal (tree, tree, bool = false); 6953 extern tree maybe_process_partial_specialization (tree); 6954 extern tree most_specialized_instantiation (tree); 6955 extern tree most_specialized_partial_spec (tree, tsubst_flags_t); 6956 extern void print_candidates (tree); 6957 extern void instantiate_pending_templates (int); 6958 extern tree tsubst_default_argument (tree, int, tree, tree, 6959 tsubst_flags_t); 6960 extern tree tsubst (tree, tree, tsubst_flags_t, tree); 6961 extern tree tsubst_copy_and_build (tree, tree, tsubst_flags_t, 6962 tree, bool, bool); 6963 extern tree tsubst_expr (tree, tree, tsubst_flags_t, 6964 tree, bool); 6965 extern tree tsubst_pack_expansion (tree, tree, tsubst_flags_t, tree); 6966 extern tree tsubst_argument_pack (tree, tree, tsubst_flags_t, tree); 6967 extern tree tsubst_template_args (tree, tree, tsubst_flags_t, tree); 6968 extern tree tsubst_template_arg (tree, tree, tsubst_flags_t, tree); 6969 extern tree tsubst_function_parms (tree, tree, tsubst_flags_t, tree); 6970 extern tree most_general_template (tree); 6971 extern tree get_mostly_instantiated_function_type (tree); 6972 extern bool problematic_instantiation_changed (void); 6973 extern void record_last_problematic_instantiation (void); 6974 extern struct tinst_level *current_instantiation(void); 6975 extern bool instantiating_current_function_p (void); 6976 extern tree maybe_get_template_decl_from_type_decl (tree); 6977 extern int processing_template_parmlist; 6978 extern bool dependent_type_p (tree); 6979 extern bool dependent_scope_p (tree); 6980 extern bool any_dependent_template_arguments_p (const_tree); 6981 extern bool any_erroneous_template_args_p (const_tree); 6982 extern bool dependent_template_p (tree); 6983 extern bool dependent_template_id_p (tree, tree); 6984 extern bool type_dependent_expression_p (tree); 6985 extern bool type_dependent_object_expression_p (tree); 6986 extern bool any_type_dependent_arguments_p (const vec<tree, va_gc> *); 6987 extern bool any_type_dependent_elements_p (const_tree); 6988 extern bool type_dependent_expression_p_push (tree); 6989 extern bool value_dependent_expression_p (tree); 6990 extern bool instantiation_dependent_expression_p (tree); 6991 extern bool instantiation_dependent_uneval_expression_p (tree); 6992 extern bool any_value_dependent_elements_p (const_tree); 6993 extern bool dependent_omp_for_p (tree, tree, tree, tree); 6994 extern tree resolve_typename_type (tree, bool); 6995 extern tree template_for_substitution (tree); 6996 extern tree build_non_dependent_expr (tree); 6997 extern void make_args_non_dependent (vec<tree, va_gc> *); 6998 extern bool reregister_specialization (tree, tree, tree); 6999 extern tree instantiate_non_dependent_expr (tree); 7000 extern tree instantiate_non_dependent_expr_sfinae (tree, tsubst_flags_t); 7001 extern tree instantiate_non_dependent_expr_internal (tree, tsubst_flags_t); 7002 extern tree instantiate_non_dependent_or_null (tree); 7003 extern bool variable_template_specialization_p (tree); 7004 extern bool alias_type_or_template_p (tree); 7005 enum { nt_opaque = false, nt_transparent = true }; 7006 extern tree alias_template_specialization_p (const_tree, bool); 7007 extern tree dependent_alias_template_spec_p (const_tree, bool); 7008 extern bool template_parm_object_p (const_tree); 7009 extern tree tparm_object_argument (tree); 7010 extern bool explicit_class_specialization_p (tree); 7011 extern bool push_tinst_level (tree); 7012 extern bool push_tinst_level_loc (tree, location_t); 7013 extern void pop_tinst_level (void); 7014 extern struct tinst_level *outermost_tinst_level(void); 7015 extern void init_template_processing (void); 7016 extern void print_template_statistics (void); 7017 bool template_template_parameter_p (const_tree); 7018 bool template_type_parameter_p (const_tree); 7019 extern bool primary_template_specialization_p (const_tree); 7020 extern tree get_primary_template_innermost_parameters (const_tree); 7021 extern tree get_template_parms_at_level (tree, int); 7022 extern tree get_template_innermost_arguments (const_tree); 7023 extern tree get_template_argument_pack_elems (const_tree); 7024 extern tree get_function_template_decl (const_tree); 7025 extern tree resolve_nondeduced_context (tree, tsubst_flags_t); 7026 extern tree resolve_nondeduced_context_or_error (tree, tsubst_flags_t); 7027 extern hashval_t iterative_hash_template_arg (tree arg, hashval_t val); 7028 extern tree coerce_template_parms (tree, tree, tree); 7029 extern tree coerce_template_parms (tree, tree, tree, tsubst_flags_t); 7030 extern tree canonicalize_type_argument (tree, tsubst_flags_t); 7031 extern void register_local_specialization (tree, tree); 7032 extern tree retrieve_local_specialization (tree); 7033 extern tree extract_fnparm_pack (tree, tree *); 7034 extern tree template_parm_to_arg (tree); 7035 extern tree dguide_name (tree); 7036 extern bool dguide_name_p (tree); 7037 extern bool deduction_guide_p (const_tree); 7038 extern bool copy_guide_p (const_tree); 7039 extern bool template_guide_p (const_tree); 7040 extern void store_explicit_specifier (tree, tree); 7041 extern tree add_outermost_template_args (tree, tree); 7042 7043 /* in rtti.c */ 7044 /* A vector of all tinfo decls that haven't been emitted yet. */ 7045 extern GTY(()) vec<tree, va_gc> *unemitted_tinfo_decls; 7046 7047 extern void init_rtti_processing (void); 7048 extern tree build_typeid (tree, tsubst_flags_t); 7049 extern tree get_tinfo_decl (tree); 7050 extern tree get_typeid (tree, tsubst_flags_t); 7051 extern tree build_headof (tree); 7052 extern tree build_dynamic_cast (location_t, tree, tree, 7053 tsubst_flags_t); 7054 extern void emit_support_tinfos (void); 7055 extern bool emit_tinfo_decl (tree); 7056 7057 /* in search.c */ 7058 extern bool accessible_base_p (tree, tree, bool); 7059 extern tree lookup_base (tree, tree, base_access, 7060 base_kind *, tsubst_flags_t); 7061 extern tree dcast_base_hint (tree, tree); 7062 extern int accessible_p (tree, tree, bool); 7063 extern int accessible_in_template_p (tree, tree); 7064 extern tree lookup_field (tree, tree, int, bool); 7065 extern tree lookup_fnfields (tree, tree, int); 7066 extern tree lookup_member (tree, tree, int, bool, 7067 tsubst_flags_t, 7068 access_failure_info *afi = NULL); 7069 extern tree lookup_member_fuzzy (tree, tree, bool); 7070 extern tree locate_field_accessor (tree, tree, bool); 7071 extern int look_for_overrides (tree, tree); 7072 extern void get_pure_virtuals (tree); 7073 extern void maybe_suppress_debug_info (tree); 7074 extern void note_debug_info_needed (tree); 7075 extern tree current_scope (void); 7076 extern int at_function_scope_p (void); 7077 extern bool at_class_scope_p (void); 7078 extern bool at_namespace_scope_p (void); 7079 extern tree context_for_name_lookup (tree); 7080 extern tree lookup_conversions (tree); 7081 extern tree binfo_from_vbase (tree); 7082 extern tree binfo_for_vbase (tree, tree); 7083 extern tree look_for_overrides_here (tree, tree); 7084 #define dfs_skip_bases ((tree)1) 7085 extern tree dfs_walk_all (tree, tree (*) (tree, void *), 7086 tree (*) (tree, void *), void *); 7087 extern tree dfs_walk_once (tree, tree (*) (tree, void *), 7088 tree (*) (tree, void *), void *); 7089 extern tree binfo_via_virtual (tree, tree); 7090 extern bool binfo_direct_p (tree); 7091 extern tree build_baselink (tree, tree, tree, tree); 7092 extern tree adjust_result_of_qualified_name_lookup 7093 (tree, tree, tree); 7094 extern tree copied_binfo (tree, tree); 7095 extern tree original_binfo (tree, tree); 7096 extern int shared_member_p (tree); 7097 extern bool any_dependent_bases_p (tree = current_nonlambda_class_type ()); 7098 extern bool maybe_check_overriding_exception_spec (tree, tree); 7099 7100 /* The representation of a deferred access check. */ 7101 7102 struct GTY(()) deferred_access_check { 7103 /* The base class in which the declaration is referenced. */ 7104 tree binfo; 7105 /* The declaration whose access must be checked. */ 7106 tree decl; 7107 /* The declaration that should be used in the error message. */ 7108 tree diag_decl; 7109 /* The location of this access. */ 7110 location_t loc; 7111 }; 7112 7113 /* in semantics.c */ 7114 extern void push_deferring_access_checks (deferring_kind); 7115 extern void resume_deferring_access_checks (void); 7116 extern void stop_deferring_access_checks (void); 7117 extern void pop_deferring_access_checks (void); 7118 extern vec<deferred_access_check, va_gc> *get_deferred_access_checks (void); 7119 extern void reopen_deferring_access_checks (vec<deferred_access_check, va_gc> *); 7120 extern void pop_to_parent_deferring_access_checks (void); 7121 extern bool perform_access_checks (vec<deferred_access_check, va_gc> *, 7122 tsubst_flags_t); 7123 extern bool perform_deferred_access_checks (tsubst_flags_t); 7124 extern bool perform_or_defer_access_check (tree, tree, tree, 7125 tsubst_flags_t, 7126 access_failure_info *afi = NULL); 7127 7128 /* RAII sentinel to ensures that deferred access checks are popped before 7129 a function returns. */ 7130 7131 class deferring_access_check_sentinel 7132 { 7133 public: 7134 deferring_access_check_sentinel (enum deferring_kind kind = dk_deferred) 7135 { 7136 push_deferring_access_checks (kind); 7137 } 7138 ~deferring_access_check_sentinel () 7139 { 7140 pop_deferring_access_checks (); 7141 } 7142 }; 7143 7144 extern int stmts_are_full_exprs_p (void); 7145 extern void init_cp_semantics (void); 7146 extern tree do_poplevel (tree); 7147 extern void break_maybe_infinite_loop (void); 7148 extern void add_decl_expr (tree); 7149 extern tree maybe_cleanup_point_expr_void (tree); 7150 extern tree finish_expr_stmt (tree); 7151 extern tree begin_if_stmt (void); 7152 extern tree finish_if_stmt_cond (tree, tree); 7153 extern tree finish_then_clause (tree); 7154 extern void begin_else_clause (tree); 7155 extern void finish_else_clause (tree); 7156 extern void finish_if_stmt (tree); 7157 extern tree begin_while_stmt (void); 7158 extern void finish_while_stmt_cond (tree, tree, bool, unsigned short); 7159 extern void finish_while_stmt (tree); 7160 extern tree begin_do_stmt (void); 7161 extern void finish_do_body (tree); 7162 extern void finish_do_stmt (tree, tree, bool, unsigned short); 7163 extern tree finish_return_stmt (tree); 7164 extern tree begin_for_scope (tree *); 7165 extern tree begin_for_stmt (tree, tree); 7166 extern void finish_init_stmt (tree); 7167 extern void finish_for_cond (tree, tree, bool, unsigned short); 7168 extern void finish_for_expr (tree, tree); 7169 extern void finish_for_stmt (tree); 7170 extern tree begin_range_for_stmt (tree, tree); 7171 extern void finish_range_for_decl (tree, tree, tree); 7172 extern void finish_range_for_stmt (tree); 7173 extern tree finish_break_stmt (void); 7174 extern tree finish_continue_stmt (void); 7175 extern tree begin_switch_stmt (void); 7176 extern void finish_switch_cond (tree, tree); 7177 extern void finish_switch_stmt (tree); 7178 extern tree finish_goto_stmt (tree); 7179 extern tree begin_try_block (void); 7180 extern void finish_try_block (tree); 7181 extern void finish_handler_sequence (tree); 7182 extern tree begin_function_try_block (tree *); 7183 extern void finish_function_try_block (tree); 7184 extern void finish_function_handler_sequence (tree, tree); 7185 extern void finish_cleanup_try_block (tree); 7186 extern tree begin_handler (void); 7187 extern void finish_handler_parms (tree, tree); 7188 extern void finish_handler (tree); 7189 extern void finish_cleanup (tree, tree); 7190 extern bool is_this_parameter (tree); 7191 7192 enum { 7193 BCS_NORMAL = 0, 7194 BCS_NO_SCOPE = 1, 7195 BCS_TRY_BLOCK = 2, 7196 BCS_FN_BODY = 4, 7197 BCS_TRANSACTION = 8 7198 }; 7199 extern tree begin_compound_stmt (unsigned int); 7200 7201 extern void finish_compound_stmt (tree); 7202 extern tree finish_asm_stmt (location_t, int, tree, tree, 7203 tree, tree, tree, bool); 7204 extern tree finish_label_stmt (tree); 7205 extern void finish_label_decl (tree); 7206 extern cp_expr finish_parenthesized_expr (cp_expr); 7207 extern tree force_paren_expr (tree, bool = false); 7208 inline tree force_paren_expr_uneval (tree t) 7209 { return force_paren_expr (t, true); } 7210 extern tree maybe_undo_parenthesized_ref (tree); 7211 extern tree maybe_strip_ref_conversion (tree); 7212 extern tree finish_non_static_data_member (tree, tree, tree); 7213 extern tree begin_stmt_expr (void); 7214 extern tree finish_stmt_expr_expr (tree, tree); 7215 extern tree finish_stmt_expr (tree, bool); 7216 extern tree stmt_expr_value_expr (tree); 7217 bool empty_expr_stmt_p (tree); 7218 extern cp_expr perform_koenig_lookup (cp_expr, vec<tree, va_gc> *, 7219 tsubst_flags_t); 7220 extern tree finish_call_expr (tree, vec<tree, va_gc> **, bool, 7221 bool, tsubst_flags_t); 7222 extern tree lookup_and_finish_template_variable (tree, tree, tsubst_flags_t = tf_warning_or_error); 7223 extern tree finish_template_variable (tree, tsubst_flags_t = tf_warning_or_error); 7224 extern cp_expr finish_increment_expr (cp_expr, enum tree_code); 7225 extern tree finish_this_expr (void); 7226 extern tree finish_pseudo_destructor_expr (tree, tree, tree, location_t); 7227 extern cp_expr finish_unary_op_expr (location_t, enum tree_code, cp_expr, 7228 tsubst_flags_t); 7229 /* Whether this call to finish_compound_literal represents a C++11 functional 7230 cast or a C99 compound literal. */ 7231 enum fcl_t { fcl_functional, fcl_c99 }; 7232 extern tree finish_compound_literal (tree, tree, tsubst_flags_t, fcl_t = fcl_functional); 7233 extern tree finish_fname (tree); 7234 extern void finish_translation_unit (void); 7235 extern tree finish_template_type_parm (tree, tree); 7236 extern tree finish_template_template_parm (tree, tree); 7237 extern tree begin_class_definition (tree); 7238 extern void finish_template_decl (tree); 7239 extern tree finish_template_type (tree, tree, int); 7240 extern tree finish_base_specifier (tree, tree, bool); 7241 extern void finish_member_declaration (tree); 7242 extern bool outer_automatic_var_p (tree); 7243 extern tree process_outer_var_ref (tree, tsubst_flags_t, bool force_use = false); 7244 extern cp_expr finish_id_expression (tree, tree, tree, 7245 cp_id_kind *, 7246 bool, bool, bool *, 7247 bool, bool, bool, bool, 7248 const char **, 7249 location_t); 7250 extern tree finish_typeof (tree); 7251 extern tree finish_underlying_type (tree); 7252 extern tree calculate_bases (tree, tsubst_flags_t); 7253 extern tree finish_bases (tree, bool); 7254 extern tree calculate_direct_bases (tree, tsubst_flags_t); 7255 extern tree finish_offsetof (tree, tree, location_t); 7256 extern void finish_decl_cleanup (tree, tree); 7257 extern void finish_eh_cleanup (tree); 7258 extern void emit_associated_thunks (tree); 7259 extern void finish_mem_initializers (tree); 7260 extern tree check_template_template_default_arg (tree); 7261 extern bool expand_or_defer_fn_1 (tree); 7262 extern void expand_or_defer_fn (tree); 7263 extern void add_typedef_to_current_template_for_access_check (tree, tree, 7264 location_t); 7265 extern void check_accessibility_of_qualified_id (tree, tree, tree); 7266 extern tree finish_qualified_id_expr (tree, tree, bool, bool, 7267 bool, bool, tsubst_flags_t); 7268 extern void simplify_aggr_init_expr (tree *); 7269 extern void finalize_nrv (tree *, tree, tree); 7270 extern tree omp_reduction_id (enum tree_code, tree, tree); 7271 extern tree cp_remove_omp_priv_cleanup_stmt (tree *, int *, void *); 7272 extern void cp_check_omp_declare_reduction (tree); 7273 extern void finish_omp_declare_simd_methods (tree); 7274 extern tree finish_omp_clauses (tree, enum c_omp_region_type); 7275 extern tree push_omp_privatization_clauses (bool); 7276 extern void pop_omp_privatization_clauses (tree); 7277 extern void save_omp_privatization_clauses (vec<tree> &); 7278 extern void restore_omp_privatization_clauses (vec<tree> &); 7279 extern void finish_omp_threadprivate (tree); 7280 extern tree begin_omp_structured_block (void); 7281 extern tree finish_omp_structured_block (tree); 7282 extern tree finish_oacc_data (tree, tree); 7283 extern tree finish_oacc_host_data (tree, tree); 7284 extern tree finish_omp_construct (enum tree_code, tree, tree); 7285 extern tree begin_omp_parallel (void); 7286 extern tree finish_omp_parallel (tree, tree); 7287 extern tree begin_omp_task (void); 7288 extern tree finish_omp_task (tree, tree); 7289 extern tree finish_omp_for (location_t, enum tree_code, 7290 tree, tree, tree, tree, tree, 7291 tree, tree, vec<tree> *, tree); 7292 extern tree finish_omp_for_block (tree, tree); 7293 extern void finish_omp_atomic (location_t, enum tree_code, 7294 enum tree_code, tree, tree, 7295 tree, tree, tree, tree, 7296 enum omp_memory_order); 7297 extern void finish_omp_barrier (void); 7298 extern void finish_omp_depobj (location_t, tree, 7299 enum omp_clause_depend_kind, 7300 tree); 7301 extern void finish_omp_flush (int); 7302 extern void finish_omp_taskwait (void); 7303 extern void finish_omp_taskyield (void); 7304 extern void finish_omp_cancel (tree); 7305 extern void finish_omp_cancellation_point (tree); 7306 extern tree omp_privatize_field (tree, bool); 7307 extern tree begin_transaction_stmt (location_t, tree *, int); 7308 extern void finish_transaction_stmt (tree, tree, int, tree); 7309 extern tree build_transaction_expr (location_t, tree, int, tree); 7310 extern bool cxx_omp_create_clause_info (tree, tree, bool, bool, 7311 bool, bool); 7312 extern tree baselink_for_fns (tree); 7313 extern void finish_static_assert (tree, tree, location_t, 7314 bool); 7315 extern tree finish_decltype_type (tree, bool, tsubst_flags_t); 7316 extern tree finish_trait_expr (location_t, enum cp_trait_kind, tree, tree); 7317 extern tree build_lambda_expr (void); 7318 extern tree build_lambda_object (tree); 7319 extern tree begin_lambda_type (tree); 7320 extern tree lambda_capture_field_type (tree, bool, bool); 7321 extern tree lambda_return_type (tree); 7322 extern tree lambda_proxy_type (tree); 7323 extern tree lambda_function (tree); 7324 extern void apply_deduced_return_type (tree, tree); 7325 extern tree add_capture (tree, tree, tree, bool, bool); 7326 extern tree add_default_capture (tree, tree, tree); 7327 extern void insert_capture_proxy (tree); 7328 extern void insert_pending_capture_proxies (void); 7329 extern bool is_capture_proxy (tree); 7330 extern bool is_normal_capture_proxy (tree); 7331 extern bool is_constant_capture_proxy (tree); 7332 extern void register_capture_members (tree); 7333 extern tree lambda_expr_this_capture (tree, int); 7334 extern void maybe_generic_this_capture (tree, tree); 7335 extern tree maybe_resolve_dummy (tree, bool); 7336 extern tree current_nonlambda_function (void); 7337 extern tree nonlambda_method_basetype (void); 7338 extern tree current_nonlambda_scope (void); 7339 extern tree current_lambda_expr (void); 7340 extern bool generic_lambda_fn_p (tree); 7341 extern tree do_dependent_capture (tree, bool = false); 7342 extern bool lambda_fn_in_template_p (tree); 7343 extern void maybe_add_lambda_conv_op (tree); 7344 extern bool is_lambda_ignored_entity (tree); 7345 extern bool lambda_static_thunk_p (tree); 7346 extern tree finish_builtin_launder (location_t, tree, 7347 tsubst_flags_t); 7348 extern tree cp_build_vec_convert (tree, location_t, tree, 7349 tsubst_flags_t); 7350 extern void start_lambda_scope (tree); 7351 extern void record_lambda_scope (tree); 7352 extern void record_null_lambda_scope (tree); 7353 extern void finish_lambda_scope (void); 7354 extern tree start_lambda_function (tree fn, tree lambda_expr); 7355 extern void finish_lambda_function (tree body); 7356 7357 /* in tree.c */ 7358 extern int cp_tree_operand_length (const_tree); 7359 extern int cp_tree_code_length (enum tree_code); 7360 extern void cp_free_lang_data (tree t); 7361 extern tree force_target_expr (tree, tree, tsubst_flags_t); 7362 extern tree build_target_expr_with_type (tree, tree, tsubst_flags_t); 7363 extern void lang_check_failed (const char *, int, 7364 const char *) ATTRIBUTE_NORETURN 7365 ATTRIBUTE_COLD; 7366 extern tree stabilize_expr (tree, tree *); 7367 extern void stabilize_call (tree, tree *); 7368 extern bool stabilize_init (tree, tree *); 7369 extern tree add_stmt_to_compound (tree, tree); 7370 extern void init_tree (void); 7371 extern bool pod_type_p (const_tree); 7372 extern bool layout_pod_type_p (const_tree); 7373 extern bool std_layout_type_p (const_tree); 7374 extern bool trivial_type_p (const_tree); 7375 extern bool trivially_copyable_p (const_tree); 7376 extern bool type_has_unique_obj_representations (const_tree); 7377 extern bool scalarish_type_p (const_tree); 7378 extern bool structural_type_p (tree, bool = false); 7379 extern bool type_has_nontrivial_default_init (const_tree); 7380 extern bool type_has_nontrivial_copy_init (const_tree); 7381 extern void maybe_warn_parm_abi (tree, location_t); 7382 extern bool class_tmpl_impl_spec_p (const_tree); 7383 extern int zero_init_p (const_tree); 7384 extern bool zero_init_expr_p (tree); 7385 extern bool check_abi_tag_redeclaration (const_tree, const_tree, 7386 const_tree); 7387 extern bool check_abi_tag_args (tree, tree); 7388 extern tree strip_typedefs (tree, bool * = NULL, 7389 unsigned int = 0); 7390 extern tree strip_typedefs_expr (tree, bool * = NULL, 7391 unsigned int = 0); 7392 extern tree copy_binfo (tree, tree, tree, 7393 tree *, int); 7394 extern int member_p (const_tree); 7395 extern cp_lvalue_kind real_lvalue_p (const_tree); 7396 extern cp_lvalue_kind lvalue_kind (const_tree); 7397 extern bool glvalue_p (const_tree); 7398 extern bool obvalue_p (const_tree); 7399 extern bool xvalue_p (const_tree); 7400 extern bool bitfield_p (const_tree); 7401 extern tree cp_stabilize_reference (tree); 7402 extern bool builtin_valid_in_constant_expr_p (const_tree); 7403 extern tree build_min (enum tree_code, tree, ...); 7404 extern tree build_min_nt_loc (location_t, enum tree_code, 7405 ...); 7406 extern tree build_min_non_dep (enum tree_code, tree, ...); 7407 extern tree build_min_non_dep_op_overload (enum tree_code, tree, tree, ...); 7408 extern tree build_min_nt_call_vec (tree, vec<tree, va_gc> *); 7409 extern tree build_min_non_dep_call_vec (tree, tree, vec<tree, va_gc> *); 7410 extern vec<tree, va_gc>* vec_copy_and_insert (vec<tree, va_gc>*, tree, unsigned); 7411 extern tree build_cplus_new (tree, tree, tsubst_flags_t); 7412 extern tree build_local_temp (tree); 7413 extern bool is_local_temp (tree); 7414 extern tree build_aggr_init_expr (tree, tree); 7415 extern tree get_target_expr (tree); 7416 extern tree get_target_expr_sfinae (tree, tsubst_flags_t); 7417 extern tree build_cplus_array_type (tree, tree); 7418 extern tree build_array_of_n_type (tree, int); 7419 extern bool array_of_runtime_bound_p (tree); 7420 extern bool vla_type_p (tree); 7421 extern tree build_array_copy (tree); 7422 extern tree build_vec_init_expr (tree, tree, tsubst_flags_t); 7423 extern void diagnose_non_constexpr_vec_init (tree); 7424 extern tree hash_tree_cons (tree, tree, tree); 7425 extern tree hash_tree_chain (tree, tree); 7426 extern tree build_qualified_name (tree, tree, tree, bool); 7427 extern tree build_ref_qualified_type (tree, cp_ref_qualifier); 7428 inline tree ovl_first (tree) ATTRIBUTE_PURE; 7429 extern tree ovl_make (tree fn, 7430 tree next = NULL_TREE); 7431 extern tree ovl_insert (tree fn, tree maybe_ovl, 7432 bool using_p = false); 7433 extern tree ovl_skip_hidden (tree) ATTRIBUTE_PURE; 7434 extern void lookup_mark (tree lookup, bool val); 7435 extern tree lookup_add (tree fns, tree lookup); 7436 extern tree lookup_maybe_add (tree fns, tree lookup, 7437 bool deduping); 7438 extern int is_overloaded_fn (tree) ATTRIBUTE_PURE; 7439 extern bool really_overloaded_fn (tree) ATTRIBUTE_PURE; 7440 extern tree dependent_name (tree); 7441 extern tree maybe_get_fns (tree) ATTRIBUTE_PURE; 7442 extern tree get_fns (tree) ATTRIBUTE_PURE; 7443 extern tree get_first_fn (tree) ATTRIBUTE_PURE; 7444 extern tree ovl_scope (tree); 7445 extern const char *cxx_printable_name (tree, int); 7446 extern const char *cxx_printable_name_translate (tree, int); 7447 extern tree canonical_eh_spec (tree); 7448 extern tree build_cp_fntype_variant (tree, cp_ref_qualifier, tree, bool); 7449 extern tree build_exception_variant (tree, tree); 7450 extern tree bind_template_template_parm (tree, tree); 7451 extern tree array_type_nelts_total (tree); 7452 extern tree array_type_nelts_top (tree); 7453 extern bool array_of_unknown_bound_p (const_tree); 7454 extern tree break_out_target_exprs (tree, bool = false); 7455 extern tree build_ctor_subob_ref (tree, tree, tree); 7456 extern tree replace_placeholders (tree, tree, bool * = NULL); 7457 extern bool find_placeholders (tree); 7458 extern tree get_type_decl (tree); 7459 extern tree decl_namespace_context (tree); 7460 extern bool decl_anon_ns_mem_p (const_tree); 7461 extern tree lvalue_type (tree); 7462 extern tree error_type (tree); 7463 extern int varargs_function_p (const_tree); 7464 extern bool cp_tree_equal (tree, tree); 7465 extern tree no_linkage_check (tree, bool); 7466 extern void debug_binfo (tree); 7467 extern tree build_dummy_object (tree); 7468 extern tree maybe_dummy_object (tree, tree *); 7469 extern int is_dummy_object (const_tree); 7470 extern const struct attribute_spec cxx_attribute_table[]; 7471 extern tree make_ptrmem_cst (tree, tree); 7472 extern tree cp_build_type_attribute_variant (tree, tree); 7473 extern tree cp_build_reference_type (tree, bool); 7474 extern tree move (tree); 7475 extern tree cp_build_qualified_type_real (tree, int, tsubst_flags_t); 7476 #define cp_build_qualified_type(TYPE, QUALS) \ 7477 cp_build_qualified_type_real ((TYPE), (QUALS), tf_warning_or_error) 7478 extern bool cv_qualified_p (const_tree); 7479 extern tree cv_unqualified (tree); 7480 extern special_function_kind special_function_p (const_tree); 7481 extern special_function_kind special_memfn_p (const_tree); 7482 extern int count_trees (tree); 7483 extern int char_type_p (tree); 7484 extern void verify_stmt_tree (tree); 7485 extern linkage_kind decl_linkage (tree); 7486 extern duration_kind decl_storage_duration (tree); 7487 extern tree cp_walk_subtrees (tree*, int*, walk_tree_fn, 7488 void*, hash_set<tree> *); 7489 #define cp_walk_tree(tp,func,data,pset) \ 7490 walk_tree_1 (tp, func, data, pset, cp_walk_subtrees) 7491 #define cp_walk_tree_without_duplicates(tp,func,data) \ 7492 walk_tree_without_duplicates_1 (tp, func, data, cp_walk_subtrees) 7493 extern tree rvalue (tree); 7494 extern tree convert_bitfield_to_declared_type (tree); 7495 extern tree cp_save_expr (tree); 7496 extern bool cast_valid_in_integral_constant_expression_p (tree); 7497 extern bool cxx_type_hash_eq (const_tree, const_tree); 7498 extern tree cxx_copy_lang_qualifiers (const_tree, const_tree); 7499 7500 extern void cxx_print_statistics (void); 7501 extern bool maybe_warn_zero_as_null_pointer_constant (tree, location_t); 7502 7503 /* in ptree.c */ 7504 extern void cxx_print_xnode (FILE *, tree, int); 7505 extern void cxx_print_decl (FILE *, tree, int); 7506 extern void cxx_print_type (FILE *, tree, int); 7507 extern void cxx_print_identifier (FILE *, tree, int); 7508 extern void cxx_print_error_function (diagnostic_context *, 7509 const char *, 7510 struct diagnostic_info *); 7511 7512 /* in typeck.c */ 7513 /* Says how we should behave when comparing two arrays one of which 7514 has unknown bounds. */ 7515 enum compare_bounds_t { bounds_none, bounds_either, bounds_first }; 7516 7517 extern bool cxx_mark_addressable (tree, bool = false); 7518 extern int string_conv_p (const_tree, const_tree, int); 7519 extern tree cp_truthvalue_conversion (tree, tsubst_flags_t); 7520 extern tree contextual_conv_bool (tree, tsubst_flags_t); 7521 extern tree condition_conversion (tree); 7522 extern tree require_complete_type (tree); 7523 extern tree require_complete_type_sfinae (tree, tsubst_flags_t); 7524 extern tree complete_type (tree); 7525 extern tree complete_type_or_else (tree, tree); 7526 extern tree complete_type_or_maybe_complain (tree, tree, tsubst_flags_t); 7527 inline bool type_unknown_p (const_tree); 7528 enum { ce_derived, ce_type, ce_normal, ce_exact }; 7529 extern bool comp_except_specs (const_tree, const_tree, int); 7530 extern bool comptypes (tree, tree, int); 7531 extern bool same_type_ignoring_top_level_qualifiers_p (tree, tree); 7532 extern bool similar_type_p (tree, tree); 7533 extern bool compparms (const_tree, const_tree); 7534 extern int comp_cv_qualification (const_tree, const_tree); 7535 extern int comp_cv_qualification (int, int); 7536 extern int comp_cv_qual_signature (tree, tree); 7537 extern tree cxx_sizeof_or_alignof_expr (location_t, tree, 7538 enum tree_code, bool); 7539 extern tree cxx_sizeof_or_alignof_type (location_t, tree, 7540 enum tree_code, bool, bool); 7541 extern tree cxx_alignas_expr (tree); 7542 extern tree cxx_sizeof_nowarn (tree); 7543 extern tree is_bitfield_expr_with_lowered_type (const_tree); 7544 extern tree unlowered_expr_type (const_tree); 7545 extern tree decay_conversion (tree, 7546 tsubst_flags_t, 7547 bool = true); 7548 extern tree build_class_member_access_expr (cp_expr, tree, tree, bool, 7549 tsubst_flags_t); 7550 extern tree finish_class_member_access_expr (cp_expr, tree, bool, 7551 tsubst_flags_t); 7552 extern tree lookup_destructor (tree, tree, tree, tsubst_flags_t); 7553 extern tree build_x_indirect_ref (location_t, tree, 7554 ref_operator, 7555 tsubst_flags_t); 7556 extern tree cp_build_indirect_ref (location_t, tree, 7557 ref_operator, 7558 tsubst_flags_t); 7559 extern tree cp_build_fold_indirect_ref (tree); 7560 extern tree build_array_ref (location_t, tree, tree); 7561 extern tree cp_build_array_ref (location_t, tree, tree, 7562 tsubst_flags_t); 7563 extern tree get_member_function_from_ptrfunc (tree *, tree, tsubst_flags_t); 7564 extern tree cp_build_function_call_nary (tree, tsubst_flags_t, ...) 7565 ATTRIBUTE_SENTINEL; 7566 extern tree cp_build_function_call_vec (tree, vec<tree, va_gc> **, 7567 tsubst_flags_t, 7568 tree = NULL_TREE); 7569 extern tree build_x_binary_op (const op_location_t &, 7570 enum tree_code, tree, 7571 enum tree_code, tree, 7572 enum tree_code, tree *, 7573 tsubst_flags_t); 7574 inline tree build_x_binary_op (const op_location_t &loc, 7575 enum tree_code code, tree arg1, tree arg2, 7576 tsubst_flags_t complain) 7577 { 7578 return build_x_binary_op (loc, code, arg1, TREE_CODE (arg1), arg2, 7579 TREE_CODE (arg2), NULL, complain); 7580 } 7581 extern tree build_x_array_ref (location_t, tree, tree, 7582 tsubst_flags_t); 7583 extern tree build_x_unary_op (location_t, 7584 enum tree_code, cp_expr, 7585 tsubst_flags_t); 7586 extern tree cp_build_addressof (location_t, tree, 7587 tsubst_flags_t); 7588 extern tree cp_build_addr_expr (tree, tsubst_flags_t); 7589 extern tree cp_build_unary_op (enum tree_code, tree, bool, 7590 tsubst_flags_t); 7591 extern tree genericize_compound_lvalue (tree); 7592 extern tree unary_complex_lvalue (enum tree_code, tree); 7593 extern tree build_x_conditional_expr (location_t, tree, tree, tree, 7594 tsubst_flags_t); 7595 extern tree build_x_compound_expr_from_list (tree, expr_list_kind, 7596 tsubst_flags_t); 7597 extern tree build_x_compound_expr_from_vec (vec<tree, va_gc> *, 7598 const char *, tsubst_flags_t); 7599 extern tree build_x_compound_expr (location_t, tree, tree, 7600 tsubst_flags_t); 7601 extern tree build_compound_expr (location_t, tree, tree); 7602 extern tree cp_build_compound_expr (tree, tree, tsubst_flags_t); 7603 extern tree build_static_cast (location_t, tree, tree, 7604 tsubst_flags_t); 7605 extern tree build_reinterpret_cast (location_t, tree, tree, 7606 tsubst_flags_t); 7607 extern tree build_const_cast (location_t, tree, tree, 7608 tsubst_flags_t); 7609 extern tree build_c_cast (location_t, tree, tree); 7610 extern cp_expr build_c_cast (location_t loc, tree type, 7611 cp_expr expr); 7612 extern tree cp_build_c_cast (location_t, tree, tree, 7613 tsubst_flags_t); 7614 extern cp_expr build_x_modify_expr (location_t, tree, 7615 enum tree_code, tree, 7616 tsubst_flags_t); 7617 extern tree cp_build_modify_expr (location_t, tree, 7618 enum tree_code, tree, 7619 tsubst_flags_t); 7620 extern tree convert_for_initialization (tree, tree, tree, int, 7621 impl_conv_rhs, tree, int, 7622 tsubst_flags_t); 7623 extern int comp_ptr_ttypes (tree, tree); 7624 extern bool comp_ptr_ttypes_const (tree, tree, compare_bounds_t); 7625 extern bool error_type_p (const_tree); 7626 extern bool ptr_reasonably_similar (const_tree, const_tree); 7627 extern tree build_ptrmemfunc (tree, tree, int, bool, 7628 tsubst_flags_t); 7629 extern int cp_type_quals (const_tree); 7630 extern int type_memfn_quals (const_tree); 7631 extern cp_ref_qualifier type_memfn_rqual (const_tree); 7632 extern tree apply_memfn_quals (tree, cp_cv_quals, 7633 cp_ref_qualifier = REF_QUAL_NONE); 7634 extern bool cp_has_mutable_p (const_tree); 7635 extern bool at_least_as_qualified_p (const_tree, const_tree); 7636 extern void cp_apply_type_quals_to_decl (int, tree); 7637 extern tree build_ptrmemfunc1 (tree, tree, tree); 7638 extern void expand_ptrmemfunc_cst (tree, tree *, tree *); 7639 extern tree type_after_usual_arithmetic_conversions (tree, tree); 7640 extern tree common_pointer_type (tree, tree); 7641 extern tree composite_pointer_type (const op_location_t &, 7642 tree, tree, tree, tree, 7643 composite_pointer_operation, 7644 tsubst_flags_t); 7645 extern tree merge_types (tree, tree); 7646 extern tree strip_array_domain (tree); 7647 extern tree check_return_expr (tree, bool *); 7648 extern tree spaceship_type (tree, tsubst_flags_t = tf_warning_or_error); 7649 extern tree genericize_spaceship (tree, tree, tree); 7650 extern tree cp_build_binary_op (const op_location_t &, 7651 enum tree_code, tree, tree, 7652 tsubst_flags_t); 7653 extern tree build_x_vec_perm_expr (location_t, 7654 tree, tree, tree, 7655 tsubst_flags_t); 7656 #define cxx_sizeof(T) cxx_sizeof_or_alignof_type (input_location, T, SIZEOF_EXPR, false, true) 7657 extern tree build_simple_component_ref (tree, tree); 7658 extern tree build_ptrmemfunc_access_expr (tree, tree); 7659 extern tree build_address (tree); 7660 extern tree build_nop (tree, tree); 7661 extern tree non_reference (tree); 7662 extern tree lookup_anon_field (tree, tree); 7663 extern bool invalid_nonstatic_memfn_p (location_t, tree, 7664 tsubst_flags_t); 7665 extern tree convert_member_func_to_ptr (tree, tree, tsubst_flags_t); 7666 extern tree convert_ptrmem (tree, tree, bool, bool, 7667 tsubst_flags_t); 7668 extern int lvalue_or_else (tree, enum lvalue_use, 7669 tsubst_flags_t); 7670 extern void check_template_keyword (tree); 7671 extern bool check_raw_literal_operator (const_tree decl); 7672 extern bool check_literal_operator_args (const_tree, bool *, bool *); 7673 extern void maybe_warn_about_useless_cast (location_t, tree, tree, 7674 tsubst_flags_t); 7675 extern tree cp_perform_integral_promotions (tree, tsubst_flags_t); 7676 7677 extern tree finish_left_unary_fold_expr (tree, int); 7678 extern tree finish_right_unary_fold_expr (tree, int); 7679 extern tree finish_binary_fold_expr (tree, tree, int); 7680 extern bool treat_lvalue_as_rvalue_p (tree, bool); 7681 extern bool decl_in_std_namespace_p (tree); 7682 7683 /* in typeck2.c */ 7684 extern void require_complete_eh_spec_types (tree, tree); 7685 extern void cxx_incomplete_type_diagnostic (location_t, const_tree, 7686 const_tree, diagnostic_t); 7687 7688 inline location_t 7689 cp_expr_loc_or_loc (const_tree t, location_t or_loc) 7690 { 7691 location_t loc = cp_expr_location (t); 7692 if (loc == UNKNOWN_LOCATION) 7693 loc = or_loc; 7694 return loc; 7695 } 7696 7697 inline location_t 7698 cp_expr_loc_or_input_loc (const_tree t) 7699 { 7700 return cp_expr_loc_or_loc (t, input_location); 7701 } 7702 7703 inline void 7704 cxx_incomplete_type_diagnostic (const_tree value, const_tree type, 7705 diagnostic_t diag_kind) 7706 { 7707 cxx_incomplete_type_diagnostic (cp_expr_loc_or_input_loc (value), 7708 value, type, diag_kind); 7709 } 7710 7711 extern void cxx_incomplete_type_error (location_t, const_tree, 7712 const_tree); 7713 inline void 7714 cxx_incomplete_type_error (const_tree value, const_tree type) 7715 { 7716 cxx_incomplete_type_diagnostic (value, type, DK_ERROR); 7717 } 7718 7719 extern void cxx_incomplete_type_inform (const_tree); 7720 extern tree error_not_base_type (tree, tree); 7721 extern tree binfo_or_else (tree, tree); 7722 extern void cxx_readonly_error (location_t, tree, 7723 enum lvalue_use); 7724 extern void complete_type_check_abstract (tree); 7725 extern int abstract_virtuals_error (tree, tree); 7726 extern int abstract_virtuals_error (abstract_class_use, tree); 7727 extern int abstract_virtuals_error_sfinae (tree, tree, tsubst_flags_t); 7728 extern int abstract_virtuals_error_sfinae (abstract_class_use, tree, tsubst_flags_t); 7729 7730 extern tree store_init_value (tree, tree, vec<tree, va_gc>**, int); 7731 extern tree split_nonconstant_init (tree, tree); 7732 extern bool check_narrowing (tree, tree, tsubst_flags_t, 7733 bool = false); 7734 extern bool ordinary_char_type_p (tree); 7735 extern tree digest_init (tree, tree, tsubst_flags_t); 7736 extern tree digest_init_flags (tree, tree, int, tsubst_flags_t); 7737 extern tree digest_nsdmi_init (tree, tree, tsubst_flags_t); 7738 extern tree build_scoped_ref (tree, tree, tree *); 7739 extern tree build_x_arrow (location_t, tree, 7740 tsubst_flags_t); 7741 extern tree build_m_component_ref (tree, tree, tsubst_flags_t); 7742 extern tree build_functional_cast (location_t, tree, tree, 7743 tsubst_flags_t); 7744 extern tree add_exception_specifier (tree, tree, tsubst_flags_t); 7745 extern tree merge_exception_specifiers (tree, tree); 7746 7747 /* in mangle.c */ 7748 extern void init_mangle (void); 7749 extern void mangle_decl (tree); 7750 extern const char *mangle_type_string (tree); 7751 extern tree mangle_typeinfo_for_type (tree); 7752 extern tree mangle_typeinfo_string_for_type (tree); 7753 extern tree mangle_vtbl_for_type (tree); 7754 extern tree mangle_vtt_for_type (tree); 7755 extern tree mangle_ctor_vtbl_for_type (tree, tree); 7756 extern tree mangle_thunk (tree, int, tree, tree, tree); 7757 extern tree mangle_guard_variable (tree); 7758 extern tree mangle_tls_init_fn (tree); 7759 extern tree mangle_tls_wrapper_fn (tree); 7760 extern bool decl_tls_wrapper_p (tree); 7761 extern tree mangle_ref_init_variable (tree); 7762 extern tree mangle_template_parm_object (tree); 7763 extern char * get_mangled_vtable_map_var_name (tree); 7764 extern bool mangle_return_type_p (tree); 7765 extern tree mangle_decomp (tree, vec<tree> &); 7766 7767 /* in dump.c */ 7768 extern bool cp_dump_tree (void *, tree); 7769 7770 /* In cp/cp-objcp-common.c. */ 7771 7772 extern alias_set_type cxx_get_alias_set (tree); 7773 extern bool cxx_warn_unused_global_decl (const_tree); 7774 extern size_t cp_tree_size (enum tree_code); 7775 extern bool cp_var_mod_type_p (tree, tree); 7776 extern void cxx_initialize_diagnostics (diagnostic_context *); 7777 extern int cxx_types_compatible_p (tree, tree); 7778 extern bool cxx_block_may_fallthru (const_tree); 7779 7780 /* in cp-gimplify.c */ 7781 extern int cp_gimplify_expr (tree *, gimple_seq *, 7782 gimple_seq *); 7783 extern void cp_genericize (tree); 7784 extern bool cxx_omp_const_qual_no_mutable (tree); 7785 extern enum omp_clause_default_kind cxx_omp_predetermined_sharing_1 (tree); 7786 extern enum omp_clause_default_kind cxx_omp_predetermined_sharing (tree); 7787 extern tree cxx_omp_clause_default_ctor (tree, tree, tree); 7788 extern tree cxx_omp_clause_copy_ctor (tree, tree, tree); 7789 extern tree cxx_omp_clause_assign_op (tree, tree, tree); 7790 extern tree cxx_omp_clause_dtor (tree, tree); 7791 extern void cxx_omp_finish_clause (tree, gimple_seq *); 7792 extern bool cxx_omp_privatize_by_reference (const_tree); 7793 extern bool cxx_omp_disregard_value_expr (tree, bool); 7794 extern void cp_fold_function (tree); 7795 extern tree cp_fold_maybe_rvalue (tree, bool); 7796 extern tree cp_fold_rvalue (tree); 7797 extern tree cp_fully_fold (tree); 7798 extern tree cp_fully_fold_init (tree); 7799 extern void clear_fold_cache (void); 7800 extern tree lookup_hotness_attribute (tree); 7801 extern tree process_stmt_hotness_attribute (tree, location_t); 7802 extern bool simple_empty_class_p (tree, tree, tree_code); 7803 extern tree fold_builtin_source_location (location_t); 7804 7805 /* in name-lookup.c */ 7806 extern tree strip_using_decl (tree); 7807 7808 /* Tell the binding oracle what kind of binding we are looking for. */ 7809 7810 enum cp_oracle_request 7811 { 7812 CP_ORACLE_IDENTIFIER 7813 }; 7814 7815 /* If this is non-NULL, then it is a "binding oracle" which can lazily 7816 create bindings when needed by the C compiler. The oracle is told 7817 the name and type of the binding to create. It can call pushdecl 7818 or the like to ensure the binding is visible; or do nothing, 7819 leaving the binding untouched. c-decl.c takes note of when the 7820 oracle has been called and will not call it again if it fails to 7821 create a given binding. */ 7822 7823 typedef void cp_binding_oracle_function (enum cp_oracle_request, tree identifier); 7824 7825 extern cp_binding_oracle_function *cp_binding_oracle; 7826 7827 /* Set during diagnostics to record the failed constraint. This is a 7828 TREE_LIST whose VALUE is the constraint and whose PURPOSE are the 7829 instantiation arguments Defined in pt.c. */ 7830 7831 extern tree current_failed_constraint; 7832 7833 /* An RAII class to manage the failed constraint. */ 7834 7835 struct diagnosing_failed_constraint 7836 { 7837 diagnosing_failed_constraint (tree, tree, bool); 7838 ~diagnosing_failed_constraint (); 7839 static bool replay_errors_p (); 7840 7841 bool diagnosing_error; 7842 }; 7843 7844 /* in constraint.cc */ 7845 7846 extern cp_expr finish_constraint_or_expr (location_t, cp_expr, cp_expr); 7847 extern cp_expr finish_constraint_and_expr (location_t, cp_expr, cp_expr); 7848 extern cp_expr finish_constraint_primary_expr (cp_expr); 7849 extern tree finish_concept_definition (cp_expr, tree); 7850 extern tree combine_constraint_expressions (tree, tree); 7851 extern tree append_constraint (tree, tree); 7852 extern tree get_constraints (const_tree); 7853 extern void set_constraints (tree, tree); 7854 extern void remove_constraints (tree); 7855 extern tree current_template_constraints (void); 7856 extern tree associate_classtype_constraints (tree); 7857 extern tree build_constraints (tree, tree); 7858 extern tree maybe_substitute_reqs_for (tree, const_tree); 7859 extern tree get_template_head_requirements (tree); 7860 extern tree get_trailing_function_requirements (tree); 7861 extern tree get_shorthand_constraints (tree); 7862 7863 extern tree build_concept_id (tree); 7864 extern tree build_type_constraint (tree, tree, tsubst_flags_t); 7865 extern tree build_concept_check (tree, tree, tsubst_flags_t); 7866 extern tree build_concept_check (tree, tree, tree, tsubst_flags_t); 7867 7868 extern tree_pair finish_type_constraints (tree, tree, tsubst_flags_t); 7869 extern tree build_constrained_parameter (tree, tree, tree = NULL_TREE); 7870 extern void placeholder_extract_concept_and_args (tree, tree&, tree&); 7871 extern bool equivalent_placeholder_constraints (tree, tree); 7872 extern hashval_t hash_placeholder_constraint (tree); 7873 extern bool deduce_constrained_parameter (tree, tree&, tree&); 7874 extern tree resolve_constraint_check (tree); 7875 extern tree check_function_concept (tree); 7876 extern tree finish_template_introduction (tree, tree, location_t loc); 7877 extern bool valid_requirements_p (tree); 7878 extern tree finish_concept_name (tree); 7879 extern tree finish_shorthand_constraint (tree, tree); 7880 extern tree finish_requires_expr (location_t, tree, tree); 7881 extern tree finish_simple_requirement (location_t, tree); 7882 extern tree finish_type_requirement (location_t, tree); 7883 extern tree finish_compound_requirement (location_t, tree, tree, bool); 7884 extern tree finish_nested_requirement (location_t, tree); 7885 extern void check_constrained_friend (tree, tree); 7886 extern tree tsubst_requires_expr (tree, tree, tsubst_flags_t, tree); 7887 extern tree tsubst_constraint (tree, tree, tsubst_flags_t, tree); 7888 extern tree tsubst_constraint_info (tree, tree, tsubst_flags_t, tree); 7889 extern tree tsubst_parameter_mapping (tree, tree, tsubst_flags_t, tree); 7890 extern tree get_mapped_args (tree); 7891 7892 struct processing_constraint_expression_sentinel 7893 { 7894 processing_constraint_expression_sentinel (); 7895 ~processing_constraint_expression_sentinel (); 7896 }; 7897 7898 extern bool processing_constraint_expression_p (); 7899 7900 extern tree unpack_concept_check (tree); 7901 extern tree evaluate_concept_check (tree, tsubst_flags_t); 7902 extern tree satisfy_constraint_expression (tree); 7903 extern bool constraints_satisfied_p (tree); 7904 extern bool constraints_satisfied_p (tree, tree); 7905 extern void clear_satisfaction_cache (); 7906 extern bool* lookup_subsumption_result (tree, tree); 7907 extern bool save_subsumption_result (tree, tree, bool); 7908 extern tree find_template_parameters (tree, tree); 7909 extern bool equivalent_constraints (tree, tree); 7910 extern bool equivalently_constrained (tree, tree); 7911 extern bool subsumes_constraints (tree, tree); 7912 extern bool strictly_subsumes (tree, tree, tree); 7913 extern bool weakly_subsumes (tree, tree, tree); 7914 extern int more_constrained (tree, tree); 7915 extern bool at_least_as_constrained (tree, tree); 7916 extern bool constraints_equivalent_p (tree, tree); 7917 extern bool atomic_constraints_identical_p (tree, tree); 7918 extern hashval_t iterative_hash_constraint (tree, hashval_t); 7919 extern hashval_t hash_atomic_constraint (tree); 7920 extern void diagnose_constraints (location_t, tree, tree); 7921 7922 /* in logic.cc */ 7923 extern bool subsumes (tree, tree); 7924 7925 /* In class.c */ 7926 extern void cp_finish_injected_record_type (tree); 7927 7928 /* in vtable-class-hierarchy.c */ 7929 extern void vtv_compute_class_hierarchy_transitive_closure (void); 7930 extern void vtv_generate_init_routine (void); 7931 extern void vtv_save_class_info (tree); 7932 extern void vtv_recover_class_info (void); 7933 extern void vtv_build_vtable_verify_fndecl (void); 7934 7935 /* In constexpr.c */ 7936 extern void fini_constexpr (void); 7937 extern bool literal_type_p (tree); 7938 extern tree register_constexpr_fundef (tree, tree); 7939 extern bool is_valid_constexpr_fn (tree, bool); 7940 extern bool check_constexpr_ctor_body (tree, tree, bool); 7941 extern tree constexpr_fn_retval (tree); 7942 extern tree ensure_literal_type_for_constexpr_object (tree); 7943 extern bool potential_constant_expression (tree); 7944 extern bool is_constant_expression (tree); 7945 extern bool is_nondependent_constant_expression (tree); 7946 extern bool is_nondependent_static_init_expression (tree); 7947 extern bool is_static_init_expression (tree); 7948 extern bool potential_rvalue_constant_expression (tree); 7949 extern bool require_potential_constant_expression (tree); 7950 extern bool require_constant_expression (tree); 7951 extern bool require_rvalue_constant_expression (tree); 7952 extern bool require_potential_rvalue_constant_expression (tree); 7953 extern tree cxx_constant_value (tree, tree = NULL_TREE); 7954 extern void cxx_constant_dtor (tree, tree); 7955 extern tree cxx_constant_init (tree, tree = NULL_TREE); 7956 extern tree maybe_constant_value (tree, tree = NULL_TREE, bool = false, bool = false); 7957 extern tree maybe_constant_init (tree, tree = NULL_TREE, bool = false); 7958 extern tree fold_non_dependent_expr (tree, 7959 tsubst_flags_t = tf_warning_or_error, 7960 bool = false, tree = NULL_TREE); 7961 extern tree maybe_fold_non_dependent_expr (tree, 7962 tsubst_flags_t = tf_warning_or_error); 7963 extern tree fold_non_dependent_init (tree, 7964 tsubst_flags_t = tf_warning_or_error, 7965 bool = false, tree = NULL_TREE); 7966 extern tree fold_simple (tree); 7967 extern bool reduced_constant_expression_p (tree); 7968 extern bool is_instantiation_of_constexpr (tree); 7969 extern bool var_in_constexpr_fn (tree); 7970 extern bool var_in_maybe_constexpr_fn (tree); 7971 extern void explain_invalid_constexpr_fn (tree); 7972 extern vec<tree> cx_error_context (void); 7973 extern tree fold_sizeof_expr (tree); 7974 extern void clear_cv_and_fold_caches (bool = true); 7975 extern tree unshare_constructor (tree CXX_MEM_STAT_INFO); 7976 7977 /* In cp-ubsan.c */ 7978 extern void cp_ubsan_maybe_instrument_member_call (tree); 7979 extern void cp_ubsan_instrument_member_accesses (tree *); 7980 extern tree cp_ubsan_maybe_instrument_downcast (location_t, tree, tree, tree); 7981 extern tree cp_ubsan_maybe_instrument_cast_to_vbase (location_t, tree, tree); 7982 extern void cp_ubsan_maybe_initialize_vtbl_ptrs (tree); 7983 7984 /* In coroutines.cc */ 7985 extern tree finish_co_return_stmt (location_t, tree); 7986 extern tree finish_co_await_expr (location_t, tree); 7987 extern tree finish_co_yield_expr (location_t, tree); 7988 extern tree coro_validate_builtin_call (tree, 7989 tsubst_flags_t = tf_warning_or_error); 7990 extern bool morph_fn_to_coro (tree, tree *, tree *); 7991 7992 /* Inline bodies. */ 7993 7994 inline tree 7995 ovl_first (tree node) 7996 { 7997 while (TREE_CODE (node) == OVERLOAD) 7998 node = OVL_FUNCTION (node); 7999 return node; 8000 } 8001 8002 inline bool 8003 type_unknown_p (const_tree expr) 8004 { 8005 return TREE_TYPE (expr) == unknown_type_node; 8006 } 8007 8008 inline hashval_t 8009 named_decl_hash::hash (const value_type decl) 8010 { 8011 tree name = OVL_NAME (decl); 8012 return name ? IDENTIFIER_HASH_VALUE (name) : 0; 8013 } 8014 8015 inline bool 8016 named_decl_hash::equal (const value_type existing, compare_type candidate) 8017 { 8018 tree name = OVL_NAME (existing); 8019 return candidate == name; 8020 } 8021 8022 inline bool 8023 null_node_p (const_tree expr) 8024 { 8025 STRIP_ANY_LOCATION_WRAPPER (expr); 8026 return expr == null_node; 8027 } 8028 8029 /* True iff T is a variable template declaration. */ 8030 inline bool 8031 variable_template_p (tree t) 8032 { 8033 if (TREE_CODE (t) != TEMPLATE_DECL) 8034 return false; 8035 if (!PRIMARY_TEMPLATE_P (t)) 8036 return false; 8037 if (tree r = DECL_TEMPLATE_RESULT (t)) 8038 return VAR_P (r); 8039 return false; 8040 } 8041 8042 /* True iff T is a standard concept definition. This will return 8043 true for both the template and underlying declaration. */ 8044 8045 inline bool 8046 standard_concept_p (tree t) 8047 { 8048 if (TREE_CODE (t) == TEMPLATE_DECL) 8049 t = DECL_TEMPLATE_RESULT (t); 8050 return TREE_CODE (t) == CONCEPT_DECL; 8051 } 8052 8053 /* True iff T is a variable concept definition. This will return 8054 true for both the template and the underlying declaration. */ 8055 8056 inline bool 8057 variable_concept_p (tree t) 8058 { 8059 if (TREE_CODE (t) == TEMPLATE_DECL) 8060 t = DECL_TEMPLATE_RESULT (t); 8061 return VAR_P (t) && DECL_DECLARED_CONCEPT_P (t); 8062 } 8063 8064 /* True iff T is a function concept definition or an overload set 8065 containing multiple function concepts. This will return true for 8066 both the template and the underlying declaration. */ 8067 8068 inline bool 8069 function_concept_p (tree t) 8070 { 8071 if (TREE_CODE (t) == OVERLOAD) 8072 t = OVL_FIRST (t); 8073 if (TREE_CODE (t) == TEMPLATE_DECL) 8074 t = DECL_TEMPLATE_RESULT (t); 8075 return TREE_CODE (t) == FUNCTION_DECL && DECL_DECLARED_CONCEPT_P (t); 8076 } 8077 8078 /* True iff T is a standard, variable, or function concept. */ 8079 8080 inline bool 8081 concept_definition_p (tree t) 8082 { 8083 if (t == error_mark_node) 8084 return false; 8085 8086 /* Adjust for function concept overloads. */ 8087 if (TREE_CODE (t) == OVERLOAD) 8088 t = OVL_FIRST (t); 8089 8090 /* See through templates. */ 8091 if (TREE_CODE (t) == TEMPLATE_DECL) 8092 t = DECL_TEMPLATE_RESULT (t); 8093 8094 /* The obvious and easy case. */ 8095 if (TREE_CODE (t) == CONCEPT_DECL) 8096 return true; 8097 8098 /* Definitely not a concept. */ 8099 if (!VAR_OR_FUNCTION_DECL_P (t)) 8100 return false; 8101 if (!DECL_LANG_SPECIFIC (t)) 8102 return false; 8103 8104 return DECL_DECLARED_CONCEPT_P (t); 8105 } 8106 8107 /* Same as above, but for const trees. */ 8108 8109 inline bool 8110 concept_definition_p (const_tree t) 8111 { 8112 return concept_definition_p (const_cast<tree> (t)); 8113 } 8114 8115 /* True if t is an expression that checks a concept. */ 8116 8117 inline bool 8118 concept_check_p (const_tree t) 8119 { 8120 if (TREE_CODE (t) == CALL_EXPR) 8121 t = CALL_EXPR_FN (t); 8122 if (t && TREE_CODE (t) == TEMPLATE_ID_EXPR) 8123 return concept_definition_p (TREE_OPERAND (t, 0)); 8124 return false; 8125 } 8126 8127 /* True if t is a "constrained auto" type-specifier. */ 8128 8129 inline bool 8130 is_constrained_auto (const_tree t) 8131 { 8132 return is_auto (t) && PLACEHOLDER_TYPE_CONSTRAINTS (t); 8133 } 8134 8135 /* RAII class to push/pop class scope T; if T is not a class, do nothing. */ 8136 8137 struct push_nested_class_guard 8138 { 8139 bool push; 8140 push_nested_class_guard (tree t) 8141 : push (t && CLASS_TYPE_P (t)) 8142 { 8143 if (push) 8144 push_nested_class (t); 8145 } 8146 ~push_nested_class_guard () 8147 { 8148 if (push) 8149 pop_nested_class (); 8150 } 8151 }; 8152 8153 #if CHECKING_P 8154 namespace selftest { 8155 extern void run_cp_tests (void); 8156 8157 /* Declarations for specific families of tests within cp, 8158 by source file, in alphabetical order. */ 8159 extern void cp_pt_c_tests (); 8160 extern void cp_tree_c_tests (void); 8161 } // namespace selftest 8162 #endif /* #if CHECKING_P */ 8163 8164 /* -- end of C++ */ 8165 8166 #endif /* ! GCC_CP_TREE_H */ 8167