1/* Definitions for -*- C++ -*- parsing and type checking. 2 Copyright (C) 1987-2022 Free Software Foundation, Inc. 3 Contributed by Michael Tiemann (tiemann@cygnus.com) 4 5This file is part of GCC. 6 7GCC is free software; you can redistribute it and/or modify 8it under the terms of the GNU General Public License as published by 9the Free Software Foundation; either version 3, or (at your option) 10any later version. 11 12GCC is distributed in the hope that it will be useful, 13but WITHOUT ANY WARRANTY; without even the implied warranty of 14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15GNU General Public License for more details. 16 17You should have received a copy of the GNU General Public License 18along 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 \ 36In order for the format checking to accept the C++ front end diagnostic \ 37framework extensions, you must include this file before diagnostic-core.h and \ 38c-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 50extern location_t cp_expr_location (const_tree); 51 52class cp_expr 53{ 54public: 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 109inline bool 110operator == (const cp_expr &lhs, tree rhs) 111{ 112 return lhs.get_value () == rhs; 113} 114 115 116enum 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_EXPLICIT_VOID_LIST, 129 CPTI_VTBL_TYPE, 130 CPTI_VTBL_PTR_TYPE, 131 CPTI_GLOBAL, 132 CPTI_ABORT_FNDECL, 133 CPTI_AGGR_TAG, 134 CPTI_CONV_OP_MARKER, 135 136 CPTI_CTOR_IDENTIFIER, 137 CPTI_COMPLETE_CTOR_IDENTIFIER, 138 CPTI_BASE_CTOR_IDENTIFIER, 139 CPTI_DTOR_IDENTIFIER, 140 CPTI_COMPLETE_DTOR_IDENTIFIER, 141 CPTI_BASE_DTOR_IDENTIFIER, 142 CPTI_DELETING_DTOR_IDENTIFIER, 143 CPTI_CONV_OP_IDENTIFIER, 144 CPTI_DELTA_IDENTIFIER, 145 CPTI_IN_CHARGE_IDENTIFIER, 146 CPTI_VTT_PARM_IDENTIFIER, 147 CPTI_AS_BASE_IDENTIFIER, 148 CPTI_THIS_IDENTIFIER, 149 CPTI_PFN_IDENTIFIER, 150 CPTI_VPTR_IDENTIFIER, 151 CPTI_GLOBAL_IDENTIFIER, 152 CPTI_ANON_IDENTIFIER, 153 CPTI_AUTO_IDENTIFIER, 154 CPTI_DECLTYPE_AUTO_IDENTIFIER, 155 CPTI_INIT_LIST_IDENTIFIER, 156 CPTI_FOR_RANGE__IDENTIFIER, 157 CPTI_FOR_BEGIN__IDENTIFIER, 158 CPTI_FOR_END__IDENTIFIER, 159 CPTI_FOR_RANGE_IDENTIFIER, 160 CPTI_FOR_BEGIN_IDENTIFIER, 161 CPTI_FOR_END_IDENTIFIER, 162 CPTI_ABI_TAG_IDENTIFIER, 163 CPTI_ALIGNED_IDENTIFIER, 164 CPTI_BEGIN_IDENTIFIER, 165 CPTI_END_IDENTIFIER, 166 CPTI_GET_IDENTIFIER, 167 CPTI_GNU_IDENTIFIER, 168 CPTI_TUPLE_ELEMENT_IDENTIFIER, 169 CPTI_TUPLE_SIZE_IDENTIFIER, 170 CPTI_TYPE_IDENTIFIER, 171 CPTI_VALUE_IDENTIFIER, 172 CPTI_FUN_IDENTIFIER, 173 CPTI_CLOSURE_IDENTIFIER, 174 CPTI_HEAP_UNINIT_IDENTIFIER, 175 CPTI_HEAP_IDENTIFIER, 176 CPTI_HEAP_DELETED_IDENTIFIER, 177 CPTI_HEAP_VEC_UNINIT_IDENTIFIER, 178 CPTI_HEAP_VEC_IDENTIFIER, 179 CPTI_OMP_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_NULLPTR, 190 CPTI_NULLPTR_TYPE, 191 192 CPTI_ANY_TARG, 193 194 CPTI_MODULE_HWM, 195 /* Nodes after here change during compilation, or should not be in 196 the module's global tree table. Such nodes must be locatable 197 via name lookup or type-construction, as those are the only 198 cross-TU matching capabilities remaining. */ 199 200 /* We must find these via the global namespace. */ 201 CPTI_STD, 202 CPTI_ABI, 203 204 /* These are created at init time, but the library/headers provide 205 definitions. */ 206 CPTI_ALIGN_TYPE, 207 CPTI_TERMINATE_FN, 208 CPTI_CALL_UNEXPECTED_FN, 209 210 /* These are lazily inited. */ 211 CPTI_CONST_TYPE_INFO_TYPE, 212 CPTI_GET_EXCEPTION_PTR_FN, 213 CPTI_BEGIN_CATCH_FN, 214 CPTI_END_CATCH_FN, 215 CPTI_ALLOCATE_EXCEPTION_FN, 216 CPTI_FREE_EXCEPTION_FN, 217 CPTI_THROW_FN, 218 CPTI_RETHROW_FN, 219 CPTI_ATEXIT_FN_PTR_TYPE, 220 CPTI_ATEXIT, 221 CPTI_DSO_HANDLE, 222 CPTI_DCAST, 223 224 CPTI_SOURCE_LOCATION_IMPL, 225 226 CPTI_FALLBACK_DFLOAT32_TYPE, 227 CPTI_FALLBACK_DFLOAT64_TYPE, 228 CPTI_FALLBACK_DFLOAT128_TYPE, 229 230 CPTI_MAX 231}; 232 233extern GTY(()) tree cp_global_trees[CPTI_MAX]; 234 235#define wchar_decl_node cp_global_trees[CPTI_WCHAR_DECL] 236#define vtable_entry_type cp_global_trees[CPTI_VTABLE_ENTRY_TYPE] 237/* The type used to represent an offset by which to adjust the `this' 238 pointer in pointer-to-member types. */ 239#define delta_type_node cp_global_trees[CPTI_DELTA_TYPE] 240/* The type used to represent an index into the vtable. */ 241#define vtable_index_type cp_global_trees[CPTI_VTABLE_INDEX_TYPE] 242 243#define class_type_node cp_global_trees[CPTI_CLASS_TYPE] 244#define unknown_type_node cp_global_trees[CPTI_UNKNOWN_TYPE] 245#define init_list_type_node cp_global_trees[CPTI_INIT_LIST_TYPE] 246#define explicit_void_list_node cp_global_trees[CPTI_EXPLICIT_VOID_LIST] 247#define vtbl_type_node cp_global_trees[CPTI_VTBL_TYPE] 248#define vtbl_ptr_type_node cp_global_trees[CPTI_VTBL_PTR_TYPE] 249#define std_node cp_global_trees[CPTI_STD] 250#define abi_node cp_global_trees[CPTI_ABI] 251#define global_namespace cp_global_trees[CPTI_GLOBAL] 252#define const_type_info_type_node cp_global_trees[CPTI_CONST_TYPE_INFO_TYPE] 253#define conv_op_marker cp_global_trees[CPTI_CONV_OP_MARKER] 254#define abort_fndecl cp_global_trees[CPTI_ABORT_FNDECL] 255#define current_aggr cp_global_trees[CPTI_AGGR_TAG] 256#define nullptr_node cp_global_trees[CPTI_NULLPTR] 257#define nullptr_type_node cp_global_trees[CPTI_NULLPTR_TYPE] 258/* std::align_val_t */ 259#define align_type_node cp_global_trees[CPTI_ALIGN_TYPE] 260 261/* We cache these tree nodes so as to call get_identifier less frequently. 262 For identifiers for functions, including special member functions such 263 as ctors and assignment operators, the nodes can be used (among other 264 things) to iterate over their overloads defined by/for a type. For 265 example: 266 267 tree ovlid = assign_op_identifier; 268 tree overloads = get_class_binding (type, ovlid); 269 for (ovl_iterator it (overloads); it; ++it) { ... } 270 271 iterates over the set of implicitly and explicitly defined overloads 272 of the assignment operator for type (including the copy and move 273 assignment operators, whether deleted or not). */ 274 275/* The name of a constructor that takes an in-charge parameter to 276 decide whether or not to construct virtual base classes. */ 277#define ctor_identifier cp_global_trees[CPTI_CTOR_IDENTIFIER] 278/* The name of a constructor that constructs virtual base classes. */ 279#define complete_ctor_identifier cp_global_trees[CPTI_COMPLETE_CTOR_IDENTIFIER] 280/* The name of a constructor that does not construct virtual base classes. */ 281#define base_ctor_identifier cp_global_trees[CPTI_BASE_CTOR_IDENTIFIER] 282/* The name of a destructor that takes an in-charge parameter to 283 decide whether or not to destroy virtual base classes and whether 284 or not to delete the object. */ 285#define dtor_identifier cp_global_trees[CPTI_DTOR_IDENTIFIER] 286/* The name of a destructor that destroys virtual base classes. */ 287#define complete_dtor_identifier cp_global_trees[CPTI_COMPLETE_DTOR_IDENTIFIER] 288/* The name of a destructor that does not destroy virtual base 289 classes. */ 290#define base_dtor_identifier cp_global_trees[CPTI_BASE_DTOR_IDENTIFIER] 291/* The name of a destructor that destroys virtual base classes, and 292 then deletes the entire object. */ 293#define deleting_dtor_identifier cp_global_trees[CPTI_DELETING_DTOR_IDENTIFIER] 294 295/* The name used for conversion operators -- but note that actual 296 conversion functions use special identifiers outside the identifier 297 table. */ 298#define conv_op_identifier cp_global_trees[CPTI_CONV_OP_IDENTIFIER] 299 300#define delta_identifier cp_global_trees[CPTI_DELTA_IDENTIFIER] 301#define in_charge_identifier cp_global_trees[CPTI_IN_CHARGE_IDENTIFIER] 302/* The name of the parameter that contains a pointer to the VTT to use 303 for this subobject constructor or destructor. */ 304#define vtt_parm_identifier cp_global_trees[CPTI_VTT_PARM_IDENTIFIER] 305#define as_base_identifier cp_global_trees[CPTI_AS_BASE_IDENTIFIER] 306#define this_identifier cp_global_trees[CPTI_THIS_IDENTIFIER] 307#define pfn_identifier cp_global_trees[CPTI_PFN_IDENTIFIER] 308#define vptr_identifier cp_global_trees[CPTI_VPTR_IDENTIFIER] 309/* The name of the ::, std & anon namespaces. */ 310#define global_identifier cp_global_trees[CPTI_GLOBAL_IDENTIFIER] 311#define anon_identifier cp_global_trees[CPTI_ANON_IDENTIFIER] 312/* auto and declspec(auto) identifiers. */ 313#define auto_identifier cp_global_trees[CPTI_AUTO_IDENTIFIER] 314#define decltype_auto_identifier cp_global_trees[CPTI_DECLTYPE_AUTO_IDENTIFIER] 315#define init_list_identifier cp_global_trees[CPTI_INIT_LIST_IDENTIFIER] 316#define for_range__identifier cp_global_trees[CPTI_FOR_RANGE__IDENTIFIER] 317#define for_begin__identifier cp_global_trees[CPTI_FOR_BEGIN__IDENTIFIER] 318#define for_end__identifier cp_global_trees[CPTI_FOR_END__IDENTIFIER] 319#define for_range_identifier cp_global_trees[CPTI_FOR_RANGE_IDENTIFIER] 320#define for_begin_identifier cp_global_trees[CPTI_FOR_BEGIN_IDENTIFIER] 321#define for_end_identifier cp_global_trees[CPTI_FOR_END_IDENTIFIER] 322#define abi_tag_identifier cp_global_trees[CPTI_ABI_TAG_IDENTIFIER] 323#define aligned_identifier cp_global_trees[CPTI_ALIGNED_IDENTIFIER] 324#define begin_identifier cp_global_trees[CPTI_BEGIN_IDENTIFIER] 325#define end_identifier cp_global_trees[CPTI_END_IDENTIFIER] 326#define get__identifier cp_global_trees[CPTI_GET_IDENTIFIER] 327#define gnu_identifier cp_global_trees[CPTI_GNU_IDENTIFIER] 328#define tuple_element_identifier cp_global_trees[CPTI_TUPLE_ELEMENT_IDENTIFIER] 329#define tuple_size_identifier cp_global_trees[CPTI_TUPLE_SIZE_IDENTIFIER] 330#define type_identifier cp_global_trees[CPTI_TYPE_IDENTIFIER] 331#define value_identifier cp_global_trees[CPTI_VALUE_IDENTIFIER] 332#define fun_identifier cp_global_trees[CPTI_FUN_IDENTIFIER] 333#define closure_identifier cp_global_trees[CPTI_CLOSURE_IDENTIFIER] 334#define heap_uninit_identifier cp_global_trees[CPTI_HEAP_UNINIT_IDENTIFIER] 335#define heap_identifier cp_global_trees[CPTI_HEAP_IDENTIFIER] 336#define heap_deleted_identifier cp_global_trees[CPTI_HEAP_DELETED_IDENTIFIER] 337#define heap_vec_uninit_identifier cp_global_trees[CPTI_HEAP_VEC_UNINIT_IDENTIFIER] 338#define heap_vec_identifier cp_global_trees[CPTI_HEAP_VEC_IDENTIFIER] 339#define omp_identifier cp_global_trees[CPTI_OMP_IDENTIFIER] 340#define lang_name_c cp_global_trees[CPTI_LANG_NAME_C] 341#define lang_name_cplusplus cp_global_trees[CPTI_LANG_NAME_CPLUSPLUS] 342 343/* Exception specifiers used for throw(), noexcept(true), 344 noexcept(false) and deferred noexcept. We rely on these being 345 uncloned. */ 346#define empty_except_spec cp_global_trees[CPTI_EMPTY_EXCEPT_SPEC] 347#define noexcept_true_spec cp_global_trees[CPTI_NOEXCEPT_TRUE_SPEC] 348#define noexcept_false_spec cp_global_trees[CPTI_NOEXCEPT_FALSE_SPEC] 349#define noexcept_deferred_spec cp_global_trees[CPTI_NOEXCEPT_DEFERRED_SPEC] 350 351/* Exception handling function declarations. */ 352#define terminate_fn cp_global_trees[CPTI_TERMINATE_FN] 353#define call_unexpected_fn cp_global_trees[CPTI_CALL_UNEXPECTED_FN] 354#define get_exception_ptr_fn cp_global_trees[CPTI_GET_EXCEPTION_PTR_FN] 355#define begin_catch_fn cp_global_trees[CPTI_BEGIN_CATCH_FN] 356#define end_catch_fn cp_global_trees[CPTI_END_CATCH_FN] 357#define allocate_exception_fn cp_global_trees[CPTI_ALLOCATE_EXCEPTION_FN] 358#define free_exception_fn cp_global_trees[CPTI_FREE_EXCEPTION_FN] 359#define throw_fn cp_global_trees[CPTI_THROW_FN] 360#define rethrow_fn cp_global_trees[CPTI_RETHROW_FN] 361 362/* The type of the function-pointer argument to "__cxa_atexit" (or 363 "std::atexit", if "__cxa_atexit" is not being used). */ 364#define atexit_fn_ptr_type_node cp_global_trees[CPTI_ATEXIT_FN_PTR_TYPE] 365 366/* A pointer to `std::atexit'. */ 367#define atexit_node cp_global_trees[CPTI_ATEXIT] 368 369/* A pointer to `__dso_handle'. */ 370#define dso_handle_node cp_global_trees[CPTI_DSO_HANDLE] 371 372/* The declaration of the dynamic_cast runtime. */ 373#define dynamic_cast_node cp_global_trees[CPTI_DCAST] 374 375/* The type of a destructor. */ 376#define cleanup_type cp_global_trees[CPTI_CLEANUP_TYPE] 377 378/* The type of the vtt parameter passed to subobject constructors and 379 destructors. */ 380#define vtt_parm_type cp_global_trees[CPTI_VTT_PARM_TYPE] 381 382/* A node which matches any template argument. */ 383#define any_targ_node cp_global_trees[CPTI_ANY_TARG] 384 385/* std::source_location::__impl class. */ 386#define source_location_impl cp_global_trees[CPTI_SOURCE_LOCATION_IMPL] 387 388/* Node to indicate default access. This must be distinct from the 389 access nodes in tree.h. */ 390 391#define access_default_node null_node 392 393/* Variant of dfloat{32,64,128}_type_node only used for fundamental 394 rtti purposes if DFP is disabled. */ 395#define fallback_dfloat32_type cp_global_trees[CPTI_FALLBACK_DFLOAT32_TYPE] 396#define fallback_dfloat64_type cp_global_trees[CPTI_FALLBACK_DFLOAT64_TYPE] 397#define fallback_dfloat128_type cp_global_trees[CPTI_FALLBACK_DFLOAT128_TYPE] 398 399 400#include "name-lookup.h" 401 402/* Usage of TREE_LANG_FLAG_?: 403 0: IDENTIFIER_KIND_BIT_0 (in IDENTIFIER_NODE) 404 NEW_EXPR_USE_GLOBAL (in NEW_EXPR). 405 COND_EXPR_IS_VEC_DELETE (in COND_EXPR). 406 DELETE_EXPR_USE_GLOBAL (in DELETE_EXPR). 407 CLEANUP_P (in TRY_BLOCK) 408 AGGR_INIT_VIA_CTOR_P (in AGGR_INIT_EXPR) 409 PTRMEM_OK_P (in ADDR_EXPR, OFFSET_REF, SCOPE_REF) 410 PAREN_STRING_LITERAL_P (in STRING_CST) 411 CP_DECL_THREAD_LOCAL_P (in VAR_DECL) 412 KOENIG_LOOKUP_P (in CALL_EXPR) 413 STATEMENT_LIST_NO_SCOPE (in STATEMENT_LIST). 414 EXPR_STMT_STMT_EXPR_RESULT (in EXPR_STMT) 415 STMT_EXPR_NO_SCOPE (in STMT_EXPR) 416 BIND_EXPR_TRY_BLOCK (in BIND_EXPR) 417 TYPENAME_IS_ENUM_P (in TYPENAME_TYPE) 418 OMP_FOR_GIMPLIFYING_P (in OMP_FOR, OMP_SIMD, OMP_DISTRIBUTE, 419 and OMP_TASKLOOP) 420 BASELINK_QUALIFIED_P (in BASELINK) 421 TARGET_EXPR_IMPLICIT_P (in TARGET_EXPR) 422 TEMPLATE_PARM_PARAMETER_PACK (in TEMPLATE_PARM_INDEX) 423 ATTR_IS_DEPENDENT (in the TREE_LIST for an attribute) 424 ABI_TAG_IMPLICIT (in the TREE_LIST for the argument of abi_tag) 425 LAMBDA_CAPTURE_EXPLICIT_P (in a TREE_LIST in LAMBDA_EXPR_CAPTURE_LIST) 426 PARENTHESIZED_LIST_P (in the TREE_LIST for a parameter-declaration-list) 427 CONSTRUCTOR_IS_DIRECT_INIT (in CONSTRUCTOR) 428 LAMBDA_EXPR_CAPTURES_THIS_P (in LAMBDA_EXPR) 429 DECLTYPE_FOR_LAMBDA_CAPTURE (in DECLTYPE_TYPE) 430 VEC_INIT_EXPR_IS_CONSTEXPR (in VEC_INIT_EXPR) 431 DECL_OVERRIDE_P (in FUNCTION_DECL) 432 IMPLICIT_CONV_EXPR_DIRECT_INIT (in IMPLICIT_CONV_EXPR) 433 TRANSACTION_EXPR_IS_STMT (in TRANSACTION_EXPR) 434 CONVERT_EXPR_VBASE_PATH (in CONVERT_EXPR) 435 PACK_EXPANSION_LOCAL_P (in *_PACK_EXPANSION) 436 TINFO_HAS_ACCESS_ERRORS (in TEMPLATE_INFO) 437 SIZEOF_EXPR_TYPE_P (in SIZEOF_EXPR) 438 COMPOUND_REQ_NOEXCEPT_P (in COMPOUND_REQ) 439 WILDCARD_PACK_P (in WILDCARD_DECL) 440 BLOCK_OUTER_CURLY_BRACE_P (in BLOCK) 441 FOLD_EXPR_MODOP_P (*_FOLD_EXPR) 442 IF_STMT_CONSTEXPR_P (IF_STMT) 443 DECL_NAMESPACE_INLINE_P (in NAMESPACE_DECL) 444 SWITCH_STMT_ALL_CASES_P (in SWITCH_STMT) 445 REINTERPRET_CAST_P (in NOP_EXPR) 446 ALIGNOF_EXPR_STD_P (in ALIGNOF_EXPR) 447 OVL_DEDUP_P (in OVERLOAD) 448 ATOMIC_CONSTR_MAP_INSTANTIATED_P (in ATOMIC_CONSTR) 449 1: IDENTIFIER_KIND_BIT_1 (in IDENTIFIER_NODE) 450 TI_PENDING_TEMPLATE_FLAG. 451 TEMPLATE_PARMS_FOR_INLINE. 452 DELETE_EXPR_USE_VEC (in DELETE_EXPR). 453 (TREE_CALLS_NEW) (in _EXPR or _REF) (commented-out). 454 ICS_ELLIPSIS_FLAG (in _CONV) 455 DECL_INITIALIZED_P (in VAR_DECL) 456 TYPENAME_IS_CLASS_P (in TYPENAME_TYPE) 457 STMT_IS_FULL_EXPR_P (in _STMT) 458 TARGET_EXPR_LIST_INIT_P (in TARGET_EXPR) 459 LAMBDA_EXPR_MUTABLE_P (in LAMBDA_EXPR) 460 DECL_FINAL_P (in FUNCTION_DECL) 461 QUALIFIED_NAME_IS_TEMPLATE (in SCOPE_REF) 462 CONSTRUCTOR_IS_DEPENDENT (in CONSTRUCTOR) 463 TINFO_USED_TEMPLATE_ID (in TEMPLATE_INFO) 464 PACK_EXPANSION_SIZEOF_P (in *_PACK_EXPANSION) 465 OVL_USING_P (in OVERLOAD) 466 IMPLICIT_CONV_EXPR_NONTYPE_ARG (in IMPLICIT_CONV_EXPR) 467 BASELINK_FUNCTIONS_MAYBE_INCOMPLETE_P (in BASELINK) 468 BIND_EXPR_VEC_DTOR (in BIND_EXPR) 469 ATOMIC_CONSTR_EXPR_FROM_CONCEPT_P (in ATOMIC_CONSTR) 470 2: IDENTIFIER_KIND_BIT_2 (in IDENTIFIER_NODE) 471 ICS_THIS_FLAG (in _CONV) 472 DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (in VAR_DECL) 473 STATEMENT_LIST_TRY_BLOCK (in STATEMENT_LIST) 474 TYPENAME_IS_RESOLVING_P (in TYPENAME_TYPE) 475 TARGET_EXPR_DIRECT_INIT_P (in TARGET_EXPR) 476 FNDECL_USED_AUTO (in FUNCTION_DECL) 477 DECLTYPE_FOR_LAMBDA_PROXY (in DECLTYPE_TYPE) 478 REF_PARENTHESIZED_P (in COMPONENT_REF, INDIRECT_REF, SCOPE_REF, 479 VIEW_CONVERT_EXPR, PAREN_EXPR) 480 AGGR_INIT_ZERO_FIRST (in AGGR_INIT_EXPR) 481 CONSTRUCTOR_MUTABLE_POISON (in CONSTRUCTOR) 482 OVL_HIDDEN_P (in OVERLOAD) 483 IF_STMT_CONSTEVAL_P (in IF_STMT) 484 SWITCH_STMT_NO_BREAK_P (in SWITCH_STMT) 485 LAMBDA_EXPR_CAPTURE_OPTIMIZED (in LAMBDA_EXPR) 486 IMPLICIT_CONV_EXPR_BRACED_INIT (in IMPLICIT_CONV_EXPR) 487 PACK_EXPANSION_AUTO_P (in *_PACK_EXPANSION) 488 3: IMPLICIT_RVALUE_P (in NON_LVALUE_EXPR or STATIC_CAST_EXPR) 489 ICS_BAD_FLAG (in _CONV) 490 FN_TRY_BLOCK_P (in TRY_BLOCK) 491 BIND_EXPR_BODY_BLOCK (in BIND_EXPR) 492 CALL_EXPR_ORDERED_ARGS (in CALL_EXPR, AGGR_INIT_EXPR) 493 DECLTYPE_FOR_REF_CAPTURE (in DECLTYPE_TYPE) 494 CONSTRUCTOR_C99_COMPOUND_LITERAL (in CONSTRUCTOR) 495 OVL_NESTED_P (in OVERLOAD) 496 DECL_MODULE_EXPORT_P (in _DECL) 497 PACK_EXPANSION_FORCE_EXTRA_ARGS_P (in *_PACK_EXPANSION) 498 4: IDENTIFIER_MARKED (IDENTIFIER_NODEs) 499 TREE_HAS_CONSTRUCTOR (in INDIRECT_REF, SAVE_EXPR, CONSTRUCTOR, 500 CALL_EXPR, or FIELD_DECL). 501 DECL_TINFO_P (in VAR_DECL, TYPE_DECL) 502 FUNCTION_REF_QUALIFIED (in FUNCTION_TYPE, METHOD_TYPE) 503 OVL_LOOKUP_P (in OVERLOAD) 504 LOOKUP_FOUND_P (in RECORD_TYPE, UNION_TYPE, ENUMERAL_TYPE, NAMESPACE_DECL) 505 FNDECL_MANIFESTLY_CONST_EVALUATED (in FUNCTION_DECL) 506 5: IDENTIFIER_VIRTUAL_P (in IDENTIFIER_NODE) 507 FUNCTION_RVALUE_QUALIFIED (in FUNCTION_TYPE, METHOD_TYPE) 508 CALL_EXPR_REVERSE_ARGS (in CALL_EXPR, AGGR_INIT_EXPR) 509 CONSTRUCTOR_PLACEHOLDER_BOUNDARY (in CONSTRUCTOR) 510 OVL_EXPORT_P (in OVERLOAD) 511 6: TYPE_MARKED_P (in _TYPE) 512 DECL_NONTRIVIALLY_INITIALIZED_P (in VAR_DECL) 513 RANGE_FOR_IVDEP (in RANGE_FOR_STMT) 514 CALL_EXPR_OPERATOR_SYNTAX (in CALL_EXPR, AGGR_INIT_EXPR) 515 CONSTRUCTOR_IS_DESIGNATED_INIT (in CONSTRUCTOR) 516 517 Usage of TYPE_LANG_FLAG_?: 518 0: TYPE_DEPENDENT_P 519 1: TYPE_HAS_USER_CONSTRUCTOR. 520 2: TYPE_HAS_LATE_RETURN_TYPE (in FUNCTION_TYPE, METHOD_TYPE) 521 TYPE_PTRMEMFUNC_FLAG (in RECORD_TYPE) 522 4: TYPE_HAS_NONTRIVIAL_DESTRUCTOR 523 5: CLASS_TYPE_P (in RECORD_TYPE and UNION_TYPE) 524 ENUM_FIXED_UNDERLYING_TYPE_P (in ENUMERAL_TYPE) 525 AUTO_IS_DECLTYPE (in TEMPLATE_TYPE_PARM) 526 6: TYPE_DEPENDENT_P_VALID 527 528 Usage of DECL_LANG_FLAG_?: 529 0: DECL_TEMPLATE_PARM_P (in PARM_DECL, CONST_DECL, TYPE_DECL, or TEMPLATE_DECL) 530 DECL_LOCAL_DECL_P (in FUNCTION_DECL, VAR_DECL) 531 DECL_MUTABLE_P (in FIELD_DECL) 532 DECL_DEPENDENT_P (in USING_DECL) 533 LABEL_DECL_BREAK (in LABEL_DECL) 534 1: C_TYPEDEF_EXPLICITLY_SIGNED (in TYPE_DECL). 535 DECL_TEMPLATE_INSTANTIATED (in a VAR_DECL or a FUNCTION_DECL) 536 DECL_MEMBER_TEMPLATE_P (in TEMPLATE_DECL) 537 USING_DECL_TYPENAME_P (in USING_DECL) 538 DECL_VLA_CAPTURE_P (in FIELD_DECL) 539 DECL_ARRAY_PARAMETER_P (in PARM_DECL) 540 LABEL_DECL_CONTINUE (in LABEL_DECL) 541 2: DECL_THIS_EXTERN (in VAR_DECL, FUNCTION_DECL or PARM_DECL) 542 DECL_IMPLICIT_TYPEDEF_P (in a TYPE_DECL) 543 DECL_CONSTRAINT_VAR_P (in a PARM_DECL) 544 TEMPLATE_DECL_COMPLEX_ALIAS_P (in TEMPLATE_DECL) 545 DECL_INSTANTIATING_NSDMI_P (in a FIELD_DECL) 546 LABEL_DECL_CDTOR (in LABEL_DECL) 547 USING_DECL_UNRELATED_P (in USING_DECL) 548 3: DECL_IN_AGGR_P. 549 4: DECL_C_BIT_FIELD (in a FIELD_DECL) 550 DECL_ANON_UNION_VAR_P (in a VAR_DECL) 551 DECL_SELF_REFERENCE_P (in a TYPE_DECL) 552 DECL_INVALID_OVERRIDER_P (in a FUNCTION_DECL) 553 DECL_UNINSTANIATED_TEMPLATE_FRIEND_P (in TEMPLATE_DECL) 554 5: DECL_INTERFACE_KNOWN. 555 6: DECL_THIS_STATIC (in VAR_DECL, FUNCTION_DECL or PARM_DECL) 556 DECL_FIELD_IS_BASE (in FIELD_DECL) 557 TYPE_DECL_ALIAS_P (in TYPE_DECL) 558 7: DECL_THUNK_P (in a member FUNCTION_DECL) 559 DECL_NORMAL_CAPTURE_P (in FIELD_DECL) 560 DECL_DECLARED_CONSTINIT_P (in VAR_DECL) 561 8: DECL_DECLARED_CONSTEXPR_P (in VAR_DECL, FUNCTION_DECL) 562 563 Usage of language-independent fields in a language-dependent manner: 564 565 TYPE_ALIAS_SET 566 This field is used by TYPENAME_TYPEs, TEMPLATE_TYPE_PARMs, and so 567 forth as a substitute for the mark bits provided in `lang_type'. 568 At present, only the six low-order bits are used. 569 570 TYPE_LANG_SLOT_1 571 For a FUNCTION_TYPE or METHOD_TYPE, this is TYPE_RAISES_EXCEPTIONS. 572 For a POINTER_TYPE (to a METHOD_TYPE), this is TYPE_PTRMEMFUNC_TYPE. 573 For an ENUMERAL_TYPE, BOUND_TEMPLATE_TEMPLATE_PARM_TYPE, 574 RECORD_TYPE or UNION_TYPE this is TYPE_TEMPLATE_INFO, 575 576 BINFO_VIRTUALS 577 For a binfo, this is a TREE_LIST. There is an entry for each 578 virtual function declared either in BINFO or its direct and 579 indirect primary bases. 580 581 The BV_DELTA of each node gives the amount by which to adjust the 582 `this' pointer when calling the function. If the method is an 583 overridden version of a base class method, then it is assumed 584 that, prior to adjustment, the this pointer points to an object 585 of the base class. 586 587 The BV_VCALL_INDEX of each node, if non-NULL, gives the vtable 588 index of the vcall offset for this entry. 589 590 The BV_FN is the declaration for the virtual function itself. 591 592 If BV_LOST_PRIMARY is set, it means that this entry is for a lost 593 primary virtual base and can be left null in the vtable. 594 595 BINFO_VTABLE 596 This is an expression with POINTER_TYPE that gives the value 597 to which the vptr should be initialized. Use get_vtbl_decl_for_binfo 598 to extract the VAR_DECL for the complete vtable. 599 600 DECL_VINDEX 601 This field is NULL for a non-virtual function. For a virtual 602 function, it is eventually set to an INTEGER_CST indicating the 603 index in the vtable at which this function can be found. When 604 a virtual function is declared, but before it is known what 605 function is overridden, this field is the error_mark_node. 606 607 Temporarily, it may be set to a TREE_LIST whose TREE_VALUE is 608 the virtual function this one overrides, and whose TREE_CHAIN is 609 the old DECL_VINDEX. */ 610 611/* Language-specific tree checkers. */ 612 613#define VAR_OR_FUNCTION_DECL_CHECK(NODE) \ 614 TREE_CHECK2(NODE,VAR_DECL,FUNCTION_DECL) 615 616#define TYPE_FUNCTION_OR_TEMPLATE_DECL_CHECK(NODE) \ 617 TREE_CHECK3(NODE,TYPE_DECL,TEMPLATE_DECL,FUNCTION_DECL) 618 619#define TYPE_FUNCTION_OR_TEMPLATE_DECL_P(NODE) \ 620 (TREE_CODE (NODE) == TYPE_DECL || TREE_CODE (NODE) == TEMPLATE_DECL \ 621 || TREE_CODE (NODE) == FUNCTION_DECL) 622 623#define VAR_FUNCTION_OR_PARM_DECL_CHECK(NODE) \ 624 TREE_CHECK3(NODE,VAR_DECL,FUNCTION_DECL,PARM_DECL) 625 626#define VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK(NODE) \ 627 TREE_CHECK4(NODE,VAR_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL) 628 629#define VAR_TEMPL_TYPE_FIELD_OR_FUNCTION_DECL_CHECK(NODE) \ 630 TREE_CHECK5(NODE,VAR_DECL,FIELD_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL) 631 632#define BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK(NODE) \ 633 TREE_CHECK(NODE,BOUND_TEMPLATE_TEMPLATE_PARM) 634 635#if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007) 636 637/* Returns t iff the node can have a TEMPLATE_INFO field. */ 638 639inline tree 640template_info_decl_check (const_tree t, const char* f, int l, const char* fn) 641{ 642 switch (TREE_CODE (t)) 643 { 644 case VAR_DECL: 645 case FUNCTION_DECL: 646 case FIELD_DECL: 647 case TYPE_DECL: 648 case CONCEPT_DECL: 649 case TEMPLATE_DECL: 650 return const_cast<tree>(t); 651 default: 652 break; 653 } 654 tree_check_failed (t, f, l, fn, 655 VAR_DECL, FUNCTION_DECL, FIELD_DECL, TYPE_DECL, 656 CONCEPT_DECL, TEMPLATE_DECL, 0); 657 gcc_unreachable (); 658} 659 660#define TEMPLATE_INFO_DECL_CHECK(NODE) \ 661 template_info_decl_check ((NODE), __FILE__, __LINE__, __FUNCTION__) 662 663#define THUNK_FUNCTION_CHECK(NODE) __extension__ \ 664({ __typeof (NODE) const __t = (NODE); \ 665 if (TREE_CODE (__t) != FUNCTION_DECL || !__t->decl_common.lang_specific \ 666 || !__t->decl_common.lang_specific->u.fn.thunk_p) \ 667 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, 0); \ 668 __t; }) 669 670#else /* ENABLE_TREE_CHECKING */ 671 672#define TEMPLATE_INFO_DECL_CHECK(NODE) (NODE) 673#define THUNK_FUNCTION_CHECK(NODE) (NODE) 674 675#endif /* ENABLE_TREE_CHECKING */ 676 677/* Language-dependent contents of an identifier. */ 678 679struct GTY(()) lang_identifier { 680 struct c_common_identifier c_common; 681 cxx_binding *bindings; 682}; 683 684/* Return a typed pointer version of T if it designates a 685 C++ front-end identifier. */ 686inline lang_identifier* 687identifier_p (tree t) 688{ 689 if (TREE_CODE (t) == IDENTIFIER_NODE) 690 return (lang_identifier*) t; 691 return NULL; 692} 693 694#define LANG_IDENTIFIER_CAST(NODE) \ 695 ((struct lang_identifier*)IDENTIFIER_NODE_CHECK (NODE)) 696 697struct GTY(()) template_parm_index { 698 struct tree_common common; 699 int index; 700 int level; 701 int orig_level; 702 tree decl; 703}; 704 705struct GTY(()) ptrmem_cst { 706 struct tree_common common; 707 tree member; 708 location_t locus; 709}; 710typedef struct ptrmem_cst * ptrmem_cst_t; 711 712#define CLEANUP_P(NODE) TREE_LANG_FLAG_0 (TRY_BLOCK_CHECK (NODE)) 713 714#define BIND_EXPR_TRY_BLOCK(NODE) \ 715 TREE_LANG_FLAG_0 (BIND_EXPR_CHECK (NODE)) 716 717/* This BIND_EXPR is from build_vec_delete_1. */ 718#define BIND_EXPR_VEC_DTOR(NODE) \ 719 TREE_LANG_FLAG_1 (BIND_EXPR_CHECK (NODE)) 720 721/* Used to mark the block around the member initializers and cleanups. */ 722#define BIND_EXPR_BODY_BLOCK(NODE) \ 723 TREE_LANG_FLAG_3 (BIND_EXPR_CHECK (NODE)) 724#define FUNCTION_NEEDS_BODY_BLOCK(NODE) \ 725 (DECL_CONSTRUCTOR_P (NODE) || DECL_DESTRUCTOR_P (NODE) \ 726 || LAMBDA_FUNCTION_P (NODE)) 727 728#define STATEMENT_LIST_NO_SCOPE(NODE) \ 729 TREE_LANG_FLAG_0 (STATEMENT_LIST_CHECK (NODE)) 730#define STATEMENT_LIST_TRY_BLOCK(NODE) \ 731 TREE_LANG_FLAG_2 (STATEMENT_LIST_CHECK (NODE)) 732 733/* Mark the outer curly brace BLOCK. */ 734#define BLOCK_OUTER_CURLY_BRACE_P(NODE) TREE_LANG_FLAG_0 (BLOCK_CHECK (NODE)) 735 736/* Nonzero if this statement should be considered a full-expression, 737 i.e., if temporaries created during this statement should have 738 their destructors run at the end of this statement. */ 739#define STMT_IS_FULL_EXPR_P(NODE) TREE_LANG_FLAG_1 ((NODE)) 740 741/* Marks the result of a statement expression. */ 742#define EXPR_STMT_STMT_EXPR_RESULT(NODE) \ 743 TREE_LANG_FLAG_0 (EXPR_STMT_CHECK (NODE)) 744 745/* Nonzero if this statement-expression does not have an associated scope. */ 746#define STMT_EXPR_NO_SCOPE(NODE) \ 747 TREE_LANG_FLAG_0 (STMT_EXPR_CHECK (NODE)) 748 749#define COND_EXPR_IS_VEC_DELETE(NODE) \ 750 TREE_LANG_FLAG_0 (COND_EXPR_CHECK (NODE)) 751 752/* Nonzero if this NOP_EXPR is a reinterpret_cast. Such conversions 753 are not constexprs. Other NOP_EXPRs are. */ 754#define REINTERPRET_CAST_P(NODE) \ 755 TREE_LANG_FLAG_0 (NOP_EXPR_CHECK (NODE)) 756 757/* Returns nonzero iff TYPE1 and TYPE2 are the same type, in the usual 758 sense of `same'. */ 759#define same_type_p(TYPE1, TYPE2) \ 760 comptypes ((TYPE1), (TYPE2), COMPARE_STRICT) 761 762/* Returns nonzero iff NODE is a declaration for the global function 763 `main'. */ 764#define DECL_MAIN_P(NODE) \ 765 (DECL_EXTERN_C_FUNCTION_P (NODE) \ 766 && DECL_NAME (NODE) != NULL_TREE \ 767 && MAIN_NAME_P (DECL_NAME (NODE)) \ 768 && flag_hosted) 769 770/* Lookup walker marking. */ 771#define LOOKUP_SEEN_P(NODE) TREE_VISITED (NODE) 772#define LOOKUP_FOUND_P(NODE) \ 773 TREE_LANG_FLAG_4 (TREE_CHECK4 (NODE,RECORD_TYPE,UNION_TYPE,ENUMERAL_TYPE,\ 774 NAMESPACE_DECL)) 775 776/* These two accessors should only be used by OVL manipulators. 777 Other users should use iterators and convenience functions. */ 778#define OVL_FUNCTION(NODE) \ 779 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->function) 780#define OVL_CHAIN(NODE) \ 781 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->common.chain) 782 783/* If set, this or a subsequent overload contains decls that need deduping. */ 784#define OVL_DEDUP_P(NODE) TREE_LANG_FLAG_0 (OVERLOAD_CHECK (NODE)) 785/* If set, this was imported in a using declaration. */ 786#define OVL_USING_P(NODE) TREE_LANG_FLAG_1 (OVERLOAD_CHECK (NODE)) 787/* If set, this overload is a hidden decl. */ 788#define OVL_HIDDEN_P(NODE) TREE_LANG_FLAG_2 (OVERLOAD_CHECK (NODE)) 789/* If set, this overload contains a nested overload. */ 790#define OVL_NESTED_P(NODE) TREE_LANG_FLAG_3 (OVERLOAD_CHECK (NODE)) 791/* If set, this overload was constructed during lookup. */ 792#define OVL_LOOKUP_P(NODE) TREE_LANG_FLAG_4 (OVERLOAD_CHECK (NODE)) 793/* If set, this OVL_USING_P overload is exported. */ 794#define OVL_EXPORT_P(NODE) TREE_LANG_FLAG_5 (OVERLOAD_CHECK (NODE)) 795 796/* The first decl of an overload. */ 797#define OVL_FIRST(NODE) ovl_first (NODE) 798/* The name of the overload set. */ 799#define OVL_NAME(NODE) DECL_NAME (OVL_FIRST (NODE)) 800 801/* Whether this is a set of overloaded functions. TEMPLATE_DECLS are 802 always wrapped in an OVERLOAD, so we don't need to check them 803 here. */ 804#define OVL_P(NODE) \ 805 (TREE_CODE (NODE) == FUNCTION_DECL || TREE_CODE (NODE) == OVERLOAD) 806/* Whether this is a single member overload. */ 807#define OVL_SINGLE_P(NODE) \ 808 (TREE_CODE (NODE) != OVERLOAD || !OVL_CHAIN (NODE)) 809 810/* OVL_HIDDEN_P nodes come before other nodes. */ 811 812struct GTY(()) tree_overload { 813 struct tree_common common; 814 tree function; 815}; 816 817/* Iterator for a 1 dimensional overload. Permits iterating over the 818 outer level of a 2-d overload when explicitly enabled. */ 819 820class ovl_iterator { 821 tree ovl; 822 const bool allow_inner; /* Only used when checking. */ 823 824 public: 825 explicit ovl_iterator (tree o, bool allow = false) 826 : ovl (o), allow_inner (allow) 827 { 828 } 829 830 public: 831 operator bool () const 832 { 833 return ovl; 834 } 835 ovl_iterator &operator++ () 836 { 837 ovl = TREE_CODE (ovl) != OVERLOAD ? NULL_TREE : OVL_CHAIN (ovl); 838 return *this; 839 } 840 tree operator* () const 841 { 842 tree fn = TREE_CODE (ovl) != OVERLOAD ? ovl : OVL_FUNCTION (ovl); 843 844 /* Check this is not an unexpected 2-dimensional overload. */ 845 gcc_checking_assert (allow_inner || TREE_CODE (fn) != OVERLOAD); 846 847 return fn; 848 } 849 bool operator== (const ovl_iterator &o) const 850 { 851 return ovl == o.ovl; 852 } 853 tree get_using () const 854 { 855 gcc_checking_assert (using_p ()); 856 return ovl; 857 } 858 859 public: 860 /* Whether this overload was introduced by a using decl. */ 861 bool using_p () const 862 { 863 return (TREE_CODE (ovl) == USING_DECL 864 || (TREE_CODE (ovl) == OVERLOAD && OVL_USING_P (ovl))); 865 } 866 /* Whether this using is being exported. */ 867 bool exporting_p () const 868 { 869 return OVL_EXPORT_P (get_using ()); 870 } 871 872 bool hidden_p () const 873 { 874 return TREE_CODE (ovl) == OVERLOAD && OVL_HIDDEN_P (ovl); 875 } 876 877 public: 878 tree remove_node (tree head) 879 { 880 return remove_node (head, ovl); 881 } 882 tree reveal_node (tree head) 883 { 884 return reveal_node (head, ovl); 885 } 886 887 protected: 888 /* If we have a nested overload, point at the inner overload and 889 return the next link on the outer one. */ 890 tree maybe_push () 891 { 892 tree r = NULL_TREE; 893 894 if (ovl && TREE_CODE (ovl) == OVERLOAD && OVL_NESTED_P (ovl)) 895 { 896 r = OVL_CHAIN (ovl); 897 ovl = OVL_FUNCTION (ovl); 898 } 899 return r; 900 } 901 /* Restore an outer nested overload. */ 902 void pop (tree outer) 903 { 904 gcc_checking_assert (!ovl); 905 ovl = outer; 906 } 907 908 private: 909 /* We make these static functions to avoid the address of the 910 iterator escaping the local context. */ 911 static tree remove_node (tree head, tree node); 912 static tree reveal_node (tree ovl, tree node); 913}; 914 915/* Treat a tree as a range of ovl_iterator, e.g. 916 for (tree f : ovl_range (fns)) { ... } */ 917 918class ovl_range 919{ 920 tree t; 921 bool allow; 922public: 923 explicit ovl_range (tree t, bool allow = false): t(t), allow(allow) { } 924 ovl_iterator begin() { return ovl_iterator (t, allow); } 925 ovl_iterator end() { return ovl_iterator (NULL_TREE, allow); } 926}; 927 928/* Iterator over a (potentially) 2 dimensional overload, which is 929 produced by name lookup. */ 930 931class lkp_iterator : public ovl_iterator { 932 typedef ovl_iterator parent; 933 934 tree outer; 935 936 public: 937 explicit lkp_iterator (tree o) 938 : parent (o, true), outer (maybe_push ()) 939 { 940 } 941 942 public: 943 lkp_iterator &operator++ () 944 { 945 bool repush = !outer; 946 947 if (!parent::operator++ () && !repush) 948 { 949 pop (outer); 950 repush = true; 951 } 952 953 if (repush) 954 outer = maybe_push (); 955 956 return *this; 957 } 958}; 959 960/* Treat a tree as a range of lkp_iterator, e.g. 961 for (tree f : lkp_range (fns)) { ... } */ 962 963class lkp_range 964{ 965 tree t; 966public: 967 lkp_range (tree t): t(t) { } 968 lkp_iterator begin() { return lkp_iterator (t); } 969 lkp_iterator end() { return lkp_iterator (NULL_TREE); } 970}; 971 972/* hash traits for declarations. Hashes potential overload sets via 973 DECL_NAME. */ 974 975struct named_decl_hash : ggc_remove <tree> { 976 typedef tree value_type; /* A DECL or OVERLOAD */ 977 typedef tree compare_type; /* An identifier. */ 978 979 inline static hashval_t hash (const value_type decl); 980 inline static bool equal (const value_type existing, compare_type candidate); 981 982 static const bool empty_zero_p = true; 983 static inline void mark_empty (value_type &p) {p = NULL_TREE;} 984 static inline bool is_empty (value_type p) {return !p;} 985 986 /* Nothing is deletable. Everything is insertable. */ 987 static bool is_deleted (value_type) { return false; } 988 static void mark_deleted (value_type) { gcc_unreachable (); } 989}; 990 991/* Simplified unique_ptr clone to release a tree vec on exit. */ 992 993class releasing_vec 994{ 995public: 996 typedef vec<tree, va_gc> vec_t; 997 998 releasing_vec (vec_t *v): v(v) { } 999 releasing_vec (): v(make_tree_vector ()) { } 1000 1001 /* Copy ops are deliberately declared but not defined, 1002 copies must always be elided. */ 1003 releasing_vec (const releasing_vec &); 1004 releasing_vec &operator= (const releasing_vec &); 1005 1006 vec_t &operator* () const { return *v; } 1007 vec_t *operator-> () const { return v; } 1008 vec_t *get() const { return v; } 1009 operator vec_t *() const { return v; } 1010 vec_t ** operator& () { return &v; } 1011 1012 /* Breaks pointer/value consistency for convenience. This takes ptrdiff_t 1013 rather than unsigned to avoid ambiguity with the built-in operator[] 1014 (bootstrap/91828). */ 1015 tree& operator[] (ptrdiff_t i) const { return (*v)[i]; } 1016 1017 tree *begin() { return ::begin (v); } 1018 tree *end() { return ::end (v); } 1019 1020 void release () { release_tree_vector (v); v = NULL; } 1021 1022 ~releasing_vec () { release_tree_vector (v); } 1023private: 1024 vec_t *v; 1025}; 1026/* Forwarding functions for vec_safe_* that might reallocate. */ 1027inline tree* vec_safe_push (releasing_vec& r, const tree &t CXX_MEM_STAT_INFO) 1028{ return vec_safe_push (*&r, t PASS_MEM_STAT); } 1029inline bool vec_safe_reserve (releasing_vec& r, unsigned n, bool e = false CXX_MEM_STAT_INFO) 1030{ return vec_safe_reserve (*&r, n, e PASS_MEM_STAT); } 1031inline unsigned vec_safe_length (releasing_vec &r) 1032{ return r->length(); } 1033inline void vec_safe_splice (releasing_vec &r, vec<tree, va_gc> *p CXX_MEM_STAT_INFO) 1034{ vec_safe_splice (*&r, p PASS_MEM_STAT); } 1035void release_tree_vector (releasing_vec &); // cause link error 1036 1037struct GTY(()) tree_template_decl { 1038 struct tree_decl_common common; 1039 tree arguments; 1040 tree result; 1041}; 1042 1043/* Returns true iff NODE is a BASELINK. */ 1044#define BASELINK_P(NODE) \ 1045 (TREE_CODE (NODE) == BASELINK) 1046/* The BINFO indicating the base in which lookup found the 1047 BASELINK_FUNCTIONS. */ 1048#define BASELINK_BINFO(NODE) \ 1049 (((struct tree_baselink*) BASELINK_CHECK (NODE))->binfo) 1050/* The functions referred to by the BASELINK; either a FUNCTION_DECL, 1051 a TEMPLATE_DECL, an OVERLOAD, or a TEMPLATE_ID_EXPR. */ 1052#define BASELINK_FUNCTIONS(NODE) \ 1053 (((struct tree_baselink*) BASELINK_CHECK (NODE))->functions) 1054/* If T is a BASELINK, grab the functions, otherwise just T, which is 1055 expected to already be a (list of) functions. */ 1056#define MAYBE_BASELINK_FUNCTIONS(T) \ 1057 (BASELINK_P (T) ? BASELINK_FUNCTIONS (T) : T) 1058/* The BINFO in which the search for the functions indicated by this baselink 1059 began. This base is used to determine the accessibility of functions 1060 selected by overload resolution. */ 1061#define BASELINK_ACCESS_BINFO(NODE) \ 1062 (((struct tree_baselink*) BASELINK_CHECK (NODE))->access_binfo) 1063/* For a type-conversion operator, the BASELINK_OPTYPE indicates the type 1064 to which the conversion should occur. This value is important if 1065 the BASELINK_FUNCTIONS include a template conversion operator -- 1066 the BASELINK_OPTYPE can be used to determine what type the user 1067 requested. */ 1068#define BASELINK_OPTYPE(NODE) \ 1069 (TREE_CHAIN (BASELINK_CHECK (NODE))) 1070/* Nonzero if this baselink was from a qualified lookup. */ 1071#define BASELINK_QUALIFIED_P(NODE) \ 1072 TREE_LANG_FLAG_0 (BASELINK_CHECK (NODE)) 1073/* Nonzero if the overload set for this baselink might be incomplete due 1074 to the lookup being performed from an incomplete-class context. */ 1075#define BASELINK_FUNCTIONS_MAYBE_INCOMPLETE_P(NODE) \ 1076 TREE_LANG_FLAG_1 (BASELINK_CHECK (NODE)) 1077 1078struct GTY(()) tree_baselink { 1079 struct tree_common common; 1080 tree binfo; 1081 tree functions; 1082 tree access_binfo; 1083}; 1084 1085/* The different kinds of ids that we encounter. */ 1086 1087enum cp_id_kind 1088{ 1089 /* Not an id at all. */ 1090 CP_ID_KIND_NONE, 1091 /* An unqualified-id that is not a template-id. */ 1092 CP_ID_KIND_UNQUALIFIED, 1093 /* An unqualified-id that is a dependent name. */ 1094 CP_ID_KIND_UNQUALIFIED_DEPENDENT, 1095 /* An unqualified template-id. */ 1096 CP_ID_KIND_TEMPLATE_ID, 1097 /* A qualified-id. */ 1098 CP_ID_KIND_QUALIFIED 1099}; 1100 1101 1102/* The various kinds of C++0x warnings we encounter. */ 1103 1104enum cpp0x_warn_str 1105{ 1106 /* extended initializer lists */ 1107 CPP0X_INITIALIZER_LISTS, 1108 /* explicit conversion operators */ 1109 CPP0X_EXPLICIT_CONVERSION, 1110 /* variadic templates */ 1111 CPP0X_VARIADIC_TEMPLATES, 1112 /* lambda expressions */ 1113 CPP0X_LAMBDA_EXPR, 1114 /* C++0x auto */ 1115 CPP0X_AUTO, 1116 /* scoped enums */ 1117 CPP0X_SCOPED_ENUMS, 1118 /* defaulted and deleted functions */ 1119 CPP0X_DEFAULTED_DELETED, 1120 /* inline namespaces */ 1121 CPP0X_INLINE_NAMESPACES, 1122 /* override controls, override/final */ 1123 CPP0X_OVERRIDE_CONTROLS, 1124 /* non-static data member initializers */ 1125 CPP0X_NSDMI, 1126 /* user defined literals */ 1127 CPP0X_USER_DEFINED_LITERALS, 1128 /* delegating constructors */ 1129 CPP0X_DELEGATING_CTORS, 1130 /* inheriting constructors */ 1131 CPP0X_INHERITING_CTORS, 1132 /* C++11 attributes */ 1133 CPP0X_ATTRIBUTES, 1134 /* ref-qualified member functions */ 1135 CPP0X_REF_QUALIFIER 1136}; 1137 1138/* The various kinds of operation used by composite_pointer_type. */ 1139 1140enum composite_pointer_operation 1141{ 1142 /* comparison */ 1143 CPO_COMPARISON, 1144 /* conversion */ 1145 CPO_CONVERSION, 1146 /* conditional expression */ 1147 CPO_CONDITIONAL_EXPR 1148}; 1149 1150/* Possible cases of expression list used by build_x_compound_expr_from_list. */ 1151enum expr_list_kind { 1152 ELK_INIT, /* initializer */ 1153 ELK_MEM_INIT, /* member initializer */ 1154 ELK_FUNC_CAST /* functional cast */ 1155}; 1156 1157/* Possible cases of implicit bad rhs conversions. */ 1158enum impl_conv_rhs { 1159 ICR_DEFAULT_ARGUMENT, /* default argument */ 1160 ICR_CONVERTING, /* converting */ 1161 ICR_INIT, /* initialization */ 1162 ICR_ARGPASS, /* argument passing */ 1163 ICR_RETURN, /* return */ 1164 ICR_ASSIGN /* assignment */ 1165}; 1166 1167/* Possible cases of implicit or explicit bad conversions to void. */ 1168enum impl_conv_void { 1169 ICV_CAST, /* (explicit) conversion to void */ 1170 ICV_SECOND_OF_COND, /* second operand of conditional expression */ 1171 ICV_THIRD_OF_COND, /* third operand of conditional expression */ 1172 ICV_RIGHT_OF_COMMA, /* right operand of comma operator */ 1173 ICV_LEFT_OF_COMMA, /* left operand of comma operator */ 1174 ICV_STATEMENT, /* statement */ 1175 ICV_THIRD_IN_FOR /* for increment expression */ 1176}; 1177 1178/* Possible invalid uses of an abstract class that might not have a 1179 specific associated declaration. */ 1180enum GTY(()) abstract_class_use { 1181 ACU_UNKNOWN, /* unknown or decl provided */ 1182 ACU_CAST, /* cast to abstract class */ 1183 ACU_NEW, /* new-expression of abstract class */ 1184 ACU_THROW, /* throw-expression of abstract class */ 1185 ACU_CATCH, /* catch-parameter of abstract class */ 1186 ACU_ARRAY, /* array of abstract class */ 1187 ACU_RETURN, /* return type of abstract class */ 1188 ACU_PARM /* parameter type of abstract class */ 1189}; 1190 1191/* Macros for access to language-specific slots in an identifier. */ 1192 1193/* Identifiers map directly to block or class-scope bindings. 1194 Namespace-scope bindings are held in hash tables on the respective 1195 namespaces. The identifier bindings are the innermost active 1196 binding, from whence you can get the decl and/or implicit-typedef 1197 of an elaborated type. When not bound to a local entity the 1198 values are NULL. */ 1199#define IDENTIFIER_BINDING(NODE) \ 1200 (LANG_IDENTIFIER_CAST (NODE)->bindings) 1201#define REAL_IDENTIFIER_TYPE_VALUE(NODE) TREE_TYPE (NODE) 1202#define SET_IDENTIFIER_TYPE_VALUE(NODE,TYPE) (TREE_TYPE (NODE) = (TYPE)) 1203 1204/* Kinds of identifiers. Values are carefully chosen. */ 1205enum cp_identifier_kind { 1206 cik_normal = 0, /* Not a special identifier. */ 1207 cik_keyword = 1, /* A keyword. */ 1208 cik_ctor = 2, /* Constructor (in-chg, complete or base). */ 1209 cik_dtor = 3, /* Destructor (in-chg, deleting, complete or 1210 base). */ 1211 cik_simple_op = 4, /* Non-assignment operator name. */ 1212 cik_assign_op = 5, /* An assignment operator name. */ 1213 cik_conv_op = 6, /* Conversion operator name. */ 1214 cik_reserved_for_udlit = 7, /* Not yet in use */ 1215 cik_max 1216}; 1217 1218/* Kind bits. */ 1219#define IDENTIFIER_KIND_BIT_0(NODE) \ 1220 TREE_LANG_FLAG_0 (IDENTIFIER_NODE_CHECK (NODE)) 1221#define IDENTIFIER_KIND_BIT_1(NODE) \ 1222 TREE_LANG_FLAG_1 (IDENTIFIER_NODE_CHECK (NODE)) 1223#define IDENTIFIER_KIND_BIT_2(NODE) \ 1224 TREE_LANG_FLAG_2 (IDENTIFIER_NODE_CHECK (NODE)) 1225 1226/* Used by various search routines. */ 1227#define IDENTIFIER_MARKED(NODE) \ 1228 TREE_LANG_FLAG_4 (IDENTIFIER_NODE_CHECK (NODE)) 1229 1230/* Nonzero if this identifier is used as a virtual function name somewhere 1231 (optimizes searches). */ 1232#define IDENTIFIER_VIRTUAL_P(NODE) \ 1233 TREE_LANG_FLAG_5 (IDENTIFIER_NODE_CHECK (NODE)) 1234 1235/* True if this identifier is a reserved word. C_RID_CODE (node) is 1236 then the RID_* value of the keyword. Value 1. */ 1237#define IDENTIFIER_KEYWORD_P(NODE) \ 1238 ((!IDENTIFIER_KIND_BIT_2 (NODE)) \ 1239 & (!IDENTIFIER_KIND_BIT_1 (NODE)) \ 1240 & IDENTIFIER_KIND_BIT_0 (NODE)) 1241 1242/* True if this identifier is the name of a constructor or 1243 destructor. Value 2 or 3. */ 1244#define IDENTIFIER_CDTOR_P(NODE) \ 1245 ((!IDENTIFIER_KIND_BIT_2 (NODE)) \ 1246 & IDENTIFIER_KIND_BIT_1 (NODE)) 1247 1248/* True if this identifier is the name of a constructor. Value 2. */ 1249#define IDENTIFIER_CTOR_P(NODE) \ 1250 (IDENTIFIER_CDTOR_P(NODE) \ 1251 & (!IDENTIFIER_KIND_BIT_0 (NODE))) 1252 1253/* True if this identifier is the name of a destructor. Value 3. */ 1254#define IDENTIFIER_DTOR_P(NODE) \ 1255 (IDENTIFIER_CDTOR_P(NODE) \ 1256 & IDENTIFIER_KIND_BIT_0 (NODE)) 1257 1258/* True if this identifier is for any operator name (including 1259 conversions). Value 4, 5, 6 or 7. */ 1260#define IDENTIFIER_ANY_OP_P(NODE) \ 1261 (IDENTIFIER_KIND_BIT_2 (NODE)) 1262 1263/* True if this identifier is for an overloaded operator. Values 4, 5. */ 1264#define IDENTIFIER_OVL_OP_P(NODE) \ 1265 (IDENTIFIER_ANY_OP_P (NODE) \ 1266 & (!IDENTIFIER_KIND_BIT_1 (NODE))) 1267 1268/* True if this identifier is for any assignment. Values 5. */ 1269#define IDENTIFIER_ASSIGN_OP_P(NODE) \ 1270 (IDENTIFIER_OVL_OP_P (NODE) \ 1271 & IDENTIFIER_KIND_BIT_0 (NODE)) 1272 1273/* True if this identifier is the name of a type-conversion 1274 operator. Value 7. */ 1275#define IDENTIFIER_CONV_OP_P(NODE) \ 1276 (IDENTIFIER_ANY_OP_P (NODE) \ 1277 & IDENTIFIER_KIND_BIT_1 (NODE) \ 1278 & (!IDENTIFIER_KIND_BIT_0 (NODE))) 1279 1280/* True if this identifier is a new or delete operator. */ 1281#define IDENTIFIER_NEWDEL_OP_P(NODE) \ 1282 (IDENTIFIER_OVL_OP_P (NODE) \ 1283 && IDENTIFIER_OVL_OP_FLAGS (NODE) & OVL_OP_FLAG_ALLOC) 1284 1285/* True if this identifier is a new operator. */ 1286#define IDENTIFIER_NEW_OP_P(NODE) \ 1287 (IDENTIFIER_OVL_OP_P (NODE) \ 1288 && (IDENTIFIER_OVL_OP_FLAGS (NODE) \ 1289 & (OVL_OP_FLAG_ALLOC | OVL_OP_FLAG_DELETE)) == OVL_OP_FLAG_ALLOC) 1290 1291/* Access a C++-specific index for identifier NODE. 1292 Used to optimize operator mappings etc. */ 1293#define IDENTIFIER_CP_INDEX(NODE) \ 1294 (IDENTIFIER_NODE_CHECK(NODE)->base.u.bits.address_space) 1295 1296/* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */ 1297#define C_TYPE_FIELDS_READONLY(TYPE) \ 1298 (LANG_TYPE_CLASS_CHECK (TYPE)->fields_readonly) 1299 1300/* The tokens stored in the unparsed operand. */ 1301 1302#define DEFPARSE_TOKENS(NODE) \ 1303 (((struct tree_deferred_parse *)DEFERRED_PARSE_CHECK (NODE))->tokens) 1304#define DEFPARSE_INSTANTIATIONS(NODE) \ 1305 (((struct tree_deferred_parse *)DEFERRED_PARSE_CHECK (NODE))->instantiations) 1306 1307struct GTY (()) tree_deferred_parse { 1308 struct tree_base base; 1309 struct cp_token_cache *tokens; 1310 vec<tree, va_gc> *instantiations; 1311}; 1312 1313 1314#define DEFERRED_NOEXCEPT_PATTERN(NODE) \ 1315 (((struct tree_deferred_noexcept *)DEFERRED_NOEXCEPT_CHECK (NODE))->pattern) 1316#define DEFERRED_NOEXCEPT_ARGS(NODE) \ 1317 (((struct tree_deferred_noexcept *)DEFERRED_NOEXCEPT_CHECK (NODE))->args) 1318#define DEFERRED_NOEXCEPT_SPEC_P(NODE) \ 1319 ((NODE) && (TREE_PURPOSE (NODE)) \ 1320 && (TREE_CODE (TREE_PURPOSE (NODE)) == DEFERRED_NOEXCEPT)) 1321#define UNEVALUATED_NOEXCEPT_SPEC_P(NODE) \ 1322 (DEFERRED_NOEXCEPT_SPEC_P (NODE) \ 1323 && DEFERRED_NOEXCEPT_PATTERN (TREE_PURPOSE (NODE)) == NULL_TREE) 1324#define UNPARSED_NOEXCEPT_SPEC_P(NODE) \ 1325 ((NODE) && (TREE_PURPOSE (NODE)) \ 1326 && (TREE_CODE (TREE_PURPOSE (NODE)) == DEFERRED_PARSE)) 1327 1328struct GTY (()) tree_deferred_noexcept { 1329 struct tree_base base; 1330 tree pattern; 1331 tree args; 1332}; 1333 1334 1335/* The condition associated with the static assertion. This must be 1336 an integral constant expression. */ 1337#define STATIC_ASSERT_CONDITION(NODE) \ 1338 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->condition) 1339 1340/* The message associated with the static assertion. This must be a 1341 string constant, which will be emitted as an error message when the 1342 static assert condition is false. */ 1343#define STATIC_ASSERT_MESSAGE(NODE) \ 1344 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->message) 1345 1346/* Source location information for a static assertion. */ 1347#define STATIC_ASSERT_SOURCE_LOCATION(NODE) \ 1348 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->location) 1349 1350struct GTY (()) tree_static_assert { 1351 struct tree_common common; 1352 tree condition; 1353 tree message; 1354 location_t location; 1355}; 1356 1357struct GTY (()) tree_argument_pack_select { 1358 struct tree_common common; 1359 tree argument_pack; 1360 int index; 1361}; 1362 1363/* The different kinds of traits that we encounter. */ 1364 1365enum cp_trait_kind 1366{ 1367 CPTK_BASES, 1368 CPTK_DIRECT_BASES, 1369 CPTK_HAS_NOTHROW_ASSIGN, 1370 CPTK_HAS_NOTHROW_CONSTRUCTOR, 1371 CPTK_HAS_NOTHROW_COPY, 1372 CPTK_HAS_TRIVIAL_ASSIGN, 1373 CPTK_HAS_TRIVIAL_CONSTRUCTOR, 1374 CPTK_HAS_TRIVIAL_COPY, 1375 CPTK_HAS_TRIVIAL_DESTRUCTOR, 1376 CPTK_HAS_UNIQUE_OBJ_REPRESENTATIONS, 1377 CPTK_HAS_VIRTUAL_DESTRUCTOR, 1378 CPTK_IS_ABSTRACT, 1379 CPTK_IS_AGGREGATE, 1380 CPTK_IS_BASE_OF, 1381 CPTK_IS_CLASS, 1382 CPTK_IS_EMPTY, 1383 CPTK_IS_ENUM, 1384 CPTK_IS_FINAL, 1385 CPTK_IS_LAYOUT_COMPATIBLE, 1386 CPTK_IS_LITERAL_TYPE, 1387 CPTK_IS_POINTER_INTERCONVERTIBLE_BASE_OF, 1388 CPTK_IS_POD, 1389 CPTK_IS_POLYMORPHIC, 1390 CPTK_IS_SAME_AS, 1391 CPTK_IS_STD_LAYOUT, 1392 CPTK_IS_TRIVIAL, 1393 CPTK_IS_TRIVIALLY_ASSIGNABLE, 1394 CPTK_IS_TRIVIALLY_CONSTRUCTIBLE, 1395 CPTK_IS_TRIVIALLY_COPYABLE, 1396 CPTK_IS_UNION, 1397 CPTK_UNDERLYING_TYPE, 1398 CPTK_IS_ASSIGNABLE, 1399 CPTK_IS_CONSTRUCTIBLE, 1400 CPTK_IS_NOTHROW_ASSIGNABLE, 1401 CPTK_IS_NOTHROW_CONSTRUCTIBLE 1402}; 1403 1404/* The types that we are processing. */ 1405#define TRAIT_EXPR_TYPE1(NODE) \ 1406 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type1) 1407 1408#define TRAIT_EXPR_TYPE2(NODE) \ 1409 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type2) 1410 1411/* The specific trait that we are processing. */ 1412#define TRAIT_EXPR_KIND(NODE) \ 1413 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->kind) 1414 1415#define TRAIT_EXPR_LOCATION(NODE) \ 1416 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->locus) 1417 1418struct GTY (()) tree_trait_expr { 1419 struct tree_common common; 1420 tree type1; 1421 tree type2; 1422 location_t locus; 1423 enum cp_trait_kind kind; 1424}; 1425 1426/* Identifiers used for lambda types are almost anonymous. Use this 1427 spare flag to distinguish them (they also have the anonymous flag). */ 1428#define IDENTIFIER_LAMBDA_P(NODE) \ 1429 (IDENTIFIER_NODE_CHECK(NODE)->base.protected_flag) 1430 1431/* Based off of TYPE_UNNAMED_P. */ 1432#define LAMBDA_TYPE_P(NODE) \ 1433 (TREE_CODE (NODE) == RECORD_TYPE \ 1434 && TYPE_LINKAGE_IDENTIFIER (NODE) \ 1435 && IDENTIFIER_LAMBDA_P (TYPE_LINKAGE_IDENTIFIER (NODE))) 1436 1437/* Test if FUNCTION_DECL is a lambda function. */ 1438#define LAMBDA_FUNCTION_P(FNDECL) \ 1439 (DECL_DECLARES_FUNCTION_P (FNDECL) \ 1440 && DECL_OVERLOADED_OPERATOR_P (FNDECL) \ 1441 && DECL_OVERLOADED_OPERATOR_IS (FNDECL, CALL_EXPR) \ 1442 && LAMBDA_TYPE_P (CP_DECL_CONTEXT (FNDECL))) 1443 1444enum cp_lambda_default_capture_mode_type { 1445 CPLD_NONE, 1446 CPLD_COPY, 1447 CPLD_REFERENCE 1448}; 1449 1450/* The method of default capture, if any. */ 1451#define LAMBDA_EXPR_DEFAULT_CAPTURE_MODE(NODE) \ 1452 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->default_capture_mode) 1453 1454/* The capture-list, including `this'. Each capture is stored as a FIELD_DECL 1455 * so that the name, type, and field are all together, whether or not it has 1456 * been added to the lambda's class type. 1457 TREE_LIST: 1458 TREE_PURPOSE: The FIELD_DECL for this capture. 1459 TREE_VALUE: The initializer. This is part of a GNU extension. */ 1460#define LAMBDA_EXPR_CAPTURE_LIST(NODE) \ 1461 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->capture_list) 1462 1463/* During parsing of the lambda-introducer, the node in the capture-list 1464 that holds the 'this' capture. During parsing of the body, the 1465 capture proxy for that node. */ 1466#define LAMBDA_EXPR_THIS_CAPTURE(NODE) \ 1467 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->this_capture) 1468 1469/* Predicate tracking whether `this' is in the effective capture set. */ 1470#define LAMBDA_EXPR_CAPTURES_THIS_P(NODE) \ 1471 LAMBDA_EXPR_THIS_CAPTURE(NODE) 1472 1473/* Predicate tracking whether the lambda was declared 'mutable'. */ 1474#define LAMBDA_EXPR_MUTABLE_P(NODE) \ 1475 TREE_LANG_FLAG_1 (LAMBDA_EXPR_CHECK (NODE)) 1476 1477/* True iff uses of a const variable capture were optimized away. */ 1478#define LAMBDA_EXPR_CAPTURE_OPTIMIZED(NODE) \ 1479 TREE_LANG_FLAG_2 (LAMBDA_EXPR_CHECK (NODE)) 1480 1481/* True if this TREE_LIST in LAMBDA_EXPR_CAPTURE_LIST is for an explicit 1482 capture. */ 1483#define LAMBDA_CAPTURE_EXPLICIT_P(NODE) \ 1484 TREE_LANG_FLAG_0 (TREE_LIST_CHECK (NODE)) 1485 1486/* The source location of the lambda. */ 1487#define LAMBDA_EXPR_LOCATION(NODE) \ 1488 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->locus) 1489 1490/* The mangling scope for the lambda: FUNCTION_DECL, PARM_DECL, VAR_DECL, 1491 FIELD_DECL or NULL_TREE. If this is NULL_TREE, we have no linkage. */ 1492#define LAMBDA_EXPR_EXTRA_SCOPE(NODE) \ 1493 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->extra_scope) 1494 1495/* If EXTRA_SCOPE, this is the number of the lambda within that scope. */ 1496#define LAMBDA_EXPR_DISCRIMINATOR(NODE) \ 1497 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->discriminator) 1498 1499/* During parsing of the lambda, a vector of capture proxies which need 1500 to be pushed once we're done processing a nested lambda. */ 1501#define LAMBDA_EXPR_PENDING_PROXIES(NODE) \ 1502 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->pending_proxies) 1503 1504/* If NODE was regenerated via tsubst_lambda_expr, this is a TEMPLATE_INFO 1505 whose TI_TEMPLATE is the immediate LAMBDA_EXPR from which NODE was 1506 regenerated, and TI_ARGS is the full set of template arguments used 1507 to regenerate NODE from the most general lambda. */ 1508#define LAMBDA_EXPR_REGEN_INFO(NODE) \ 1509 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->regen_info) 1510 1511/* The closure type of the lambda, which is also the type of the 1512 LAMBDA_EXPR. */ 1513#define LAMBDA_EXPR_CLOSURE(NODE) \ 1514 (TREE_TYPE (LAMBDA_EXPR_CHECK (NODE))) 1515 1516struct GTY (()) tree_lambda_expr 1517{ 1518 struct tree_typed typed; 1519 tree capture_list; 1520 tree this_capture; 1521 tree extra_scope; 1522 tree regen_info; 1523 vec<tree, va_gc> *pending_proxies; 1524 location_t locus; 1525 enum cp_lambda_default_capture_mode_type default_capture_mode : 8; 1526 short int discriminator; 1527}; 1528 1529/* Non-zero if this template specialization has access violations that 1530 should be rechecked when the function is instantiated outside argument 1531 deduction. */ 1532#define TINFO_HAS_ACCESS_ERRORS(NODE) \ 1533 (TREE_LANG_FLAG_0 (TEMPLATE_INFO_CHECK (NODE))) 1534#define FNDECL_HAS_ACCESS_ERRORS(NODE) \ 1535 (TINFO_HAS_ACCESS_ERRORS (DECL_TEMPLATE_INFO (NODE))) 1536 1537/* Non-zero if this variable template specialization was specified using a 1538 template-id, so it's a partial or full specialization and not a definition 1539 of the member template of a particular class specialization. */ 1540#define TINFO_USED_TEMPLATE_ID(NODE) \ 1541 (TREE_LANG_FLAG_1 (TEMPLATE_INFO_CHECK (NODE))) 1542 1543/* The representation of a deferred access check. */ 1544 1545struct GTY(()) deferred_access_check { 1546 /* The base class in which the declaration is referenced. */ 1547 tree binfo; 1548 /* The declaration whose access must be checked. */ 1549 tree decl; 1550 /* The declaration that should be used in the error message. */ 1551 tree diag_decl; 1552 /* The location of this access. */ 1553 location_t loc; 1554}; 1555 1556struct GTY(()) tree_template_info { 1557 struct tree_base base; 1558 tree tmpl; 1559 tree args; 1560 vec<deferred_access_check, va_gc> *deferred_access_checks; 1561}; 1562 1563// Constraint information for a C++ declaration. Constraint information is 1564// comprised of: 1565// 1566// - a constraint expression introduced by the template header 1567// - a constraint expression introduced by a function declarator 1568// - the associated constraints, which are the conjunction of those, 1569// and used for declaration matching 1570// 1571// The template and declarator requirements are kept to support pretty 1572// printing constrained declarations. 1573struct GTY(()) tree_constraint_info { 1574 struct tree_base base; 1575 tree template_reqs; 1576 tree declarator_reqs; 1577 tree associated_constr; 1578}; 1579 1580// Require that pointer P is non-null before returning. 1581template<typename T> 1582inline T* 1583check_nonnull (T* p) 1584{ 1585 gcc_assert (p); 1586 return p; 1587} 1588 1589/* Returns true iff T is non-null and represents constraint info. */ 1590inline tree_constraint_info * 1591check_constraint_info (tree t) 1592{ 1593 if (t && TREE_CODE (t) == CONSTRAINT_INFO) 1594 return (tree_constraint_info *)t; 1595 return NULL; 1596} 1597 1598/* Access the expression describing the template constraints. This may be 1599 null if no constraints were introduced in the template parameter list, 1600 a requirements clause after the template parameter list, or constraints 1601 through a constrained-type-specifier. */ 1602#define CI_TEMPLATE_REQS(NODE) \ 1603 check_constraint_info (check_nonnull (NODE))->template_reqs 1604 1605/* Access the expression describing the trailing constraints. This is non-null 1606 for any implicit instantiation of a constrained declaration. For a 1607 templated declaration it is non-null only when a trailing requires-clause 1608 was specified. */ 1609#define CI_DECLARATOR_REQS(NODE) \ 1610 check_constraint_info (check_nonnull (NODE))->declarator_reqs 1611 1612/* The computed associated constraint expression for a declaration. */ 1613#define CI_ASSOCIATED_CONSTRAINTS(NODE) \ 1614 check_constraint_info (check_nonnull (NODE))->associated_constr 1615 1616/* Access the constraint-expression introduced by the requires-clause 1617 associate the template parameter list NODE. */ 1618#define TEMPLATE_PARMS_CONSTRAINTS(NODE) \ 1619 TREE_TYPE (TREE_LIST_CHECK (NODE)) 1620 1621/* Access the logical constraints on the template parameter declaration 1622 indicated by NODE. */ 1623#define TEMPLATE_PARM_CONSTRAINTS(NODE) \ 1624 TREE_TYPE (TREE_LIST_CHECK (NODE)) 1625 1626/* Non-zero if the noexcept is present in a compound requirement. */ 1627#define COMPOUND_REQ_NOEXCEPT_P(NODE) \ 1628 TREE_LANG_FLAG_0 (TREE_CHECK (NODE, COMPOUND_REQ)) 1629 1630/* A TREE_LIST whose TREE_VALUE is the constraints on the 'auto' placeholder 1631 type NODE, used in an argument deduction constraint. The TREE_PURPOSE 1632 holds the set of template parameters that were in-scope when this 'auto' 1633 was formed. */ 1634#define PLACEHOLDER_TYPE_CONSTRAINTS_INFO(NODE) \ 1635 DECL_SIZE_UNIT (TYPE_NAME (NODE)) 1636 1637/* The constraints on the 'auto' placeholder type NODE. */ 1638#define PLACEHOLDER_TYPE_CONSTRAINTS(NODE) \ 1639 (PLACEHOLDER_TYPE_CONSTRAINTS_INFO (NODE) \ 1640 ? TREE_VALUE (PLACEHOLDER_TYPE_CONSTRAINTS_INFO (NODE)) \ 1641 : NULL_TREE) 1642 1643/* True if NODE is a constraint. */ 1644#define CONSTR_P(NODE) \ 1645 (TREE_CODE (NODE) == ATOMIC_CONSTR \ 1646 || TREE_CODE (NODE) == CONJ_CONSTR \ 1647 || TREE_CODE (NODE) == DISJ_CONSTR) 1648 1649/* Valid for any normalized constraint. */ 1650#define CONSTR_CHECK(NODE) \ 1651 TREE_CHECK3 (NODE, ATOMIC_CONSTR, CONJ_CONSTR, DISJ_CONSTR) 1652 1653/* The CONSTR_INFO stores normalization data for a constraint. It refers to 1654 the original expression and the expression or declaration 1655 from which the constraint was normalized. 1656 1657 This is TREE_LIST whose TREE_PURPOSE is the original expression and whose 1658 TREE_VALUE is a list of contexts. */ 1659#define CONSTR_INFO(NODE) \ 1660 TREE_TYPE (CONSTR_CHECK (NODE)) 1661 1662/* The expression evaluated by the constraint. */ 1663#define CONSTR_EXPR(NODE) \ 1664 TREE_PURPOSE (CONSTR_INFO (NODE)) 1665 1666/* The expression or declaration from which this constraint was normalized. 1667 This is a TREE_LIST whose TREE_VALUE is either a template-id expression 1668 denoting a concept check or the declaration introducing the constraint. 1669 These are chained to other context objects. */ 1670#define CONSTR_CONTEXT(NODE) \ 1671 TREE_VALUE (CONSTR_INFO (NODE)) 1672 1673/* The parameter mapping for an atomic constraint. */ 1674#define ATOMIC_CONSTR_MAP(NODE) \ 1675 TREE_OPERAND (TREE_CHECK (NODE, ATOMIC_CONSTR), 0) 1676 1677/* Whether the parameter mapping of this atomic constraint 1678 is already instantiated with concrete template arguments. 1679 Used only in satisfy_atom and in the satisfaction cache. */ 1680#define ATOMIC_CONSTR_MAP_INSTANTIATED_P(NODE) \ 1681 TREE_LANG_FLAG_0 (ATOMIC_CONSTR_CHECK (NODE)) 1682 1683/* Whether the expression for this atomic constraint belongs to a 1684 concept definition. */ 1685#define ATOMIC_CONSTR_EXPR_FROM_CONCEPT_P(NODE) \ 1686 TREE_LANG_FLAG_1 (ATOMIC_CONSTR_CHECK (NODE)) 1687 1688/* The expression of an atomic constraint. */ 1689#define ATOMIC_CONSTR_EXPR(NODE) \ 1690 CONSTR_EXPR (ATOMIC_CONSTR_CHECK (NODE)) 1691 1692/* The concept of a concept check. */ 1693#define CHECK_CONSTR_CONCEPT(NODE) \ 1694 TREE_OPERAND (TREE_CHECK (NODE, CHECK_CONSTR), 0) 1695 1696/* The template arguments of a concept check. */ 1697#define CHECK_CONSTR_ARGS(NODE) \ 1698 TREE_OPERAND (TREE_CHECK (NODE, CHECK_CONSTR), 1) 1699 1700/* Whether a PARM_DECL represents a local parameter in a 1701 requires-expression. */ 1702#define CONSTRAINT_VAR_P(NODE) \ 1703 DECL_LANG_FLAG_2 (TREE_CHECK (NODE, PARM_DECL)) 1704 1705/* The concept constraining this constrained template-parameter. */ 1706#define CONSTRAINED_PARM_CONCEPT(NODE) \ 1707 DECL_SIZE_UNIT (TYPE_DECL_CHECK (NODE)) 1708/* Any extra template arguments specified for a constrained 1709 template-parameter. */ 1710#define CONSTRAINED_PARM_EXTRA_ARGS(NODE) \ 1711 DECL_SIZE (TYPE_DECL_CHECK (NODE)) 1712/* The first template parameter of CONSTRAINED_PARM_CONCEPT to be used as a 1713 prototype for the constrained parameter in finish_shorthand_constraint, 1714 attached for convenience. */ 1715#define CONSTRAINED_PARM_PROTOTYPE(NODE) \ 1716 DECL_INITIAL (TYPE_DECL_CHECK (NODE)) 1717 1718/* Module flags on FUNCTION,VAR,TYPE,CONCEPT or NAMESPACE 1719 A TEMPLATE_DECL holds them on the DECL_TEMPLATE_RESULT object -- 1720 it's just not practical to keep them consistent. */ 1721#define DECL_MODULE_CHECK(NODE) \ 1722 TREE_NOT_CHECK (NODE, TEMPLATE_DECL) 1723 1724/* In the purview of a module (including header unit). */ 1725#define DECL_MODULE_PURVIEW_P(N) \ 1726 (DECL_LANG_SPECIFIC (DECL_MODULE_CHECK (N))->u.base.module_purview_p) 1727 1728/* True if the live version of the decl was imported. */ 1729#define DECL_MODULE_IMPORT_P(NODE) \ 1730 (DECL_LANG_SPECIFIC (DECL_MODULE_CHECK (NODE))->u.base.module_import_p) 1731 1732/* True if this decl is in the entity hash & array. This means that 1733 some variant was imported, even if DECL_MODULE_IMPORT_P is false. */ 1734#define DECL_MODULE_ENTITY_P(NODE) \ 1735 (DECL_LANG_SPECIFIC (DECL_MODULE_CHECK (NODE))->u.base.module_entity_p) 1736 1737/* DECL that has attached decls for ODR-relatedness. */ 1738#define DECL_MODULE_ATTACHMENTS_P(NODE) \ 1739 (DECL_LANG_SPECIFIC (TREE_CHECK2(NODE,FUNCTION_DECL,VAR_DECL))\ 1740 ->u.base.module_attached_p) 1741 1742/* Whether this is an exported DECL. Held on any decl that can appear 1743 at namespace scope (function, var, type, template, const or 1744 namespace). templates copy from their template_result, consts have 1745 it for unscoped enums. */ 1746#define DECL_MODULE_EXPORT_P(NODE) TREE_LANG_FLAG_3 (NODE) 1747 1748 1749/* The list of local parameters introduced by this requires-expression, 1750 in the form of a chain of PARM_DECLs. */ 1751#define REQUIRES_EXPR_PARMS(NODE) \ 1752 TREE_OPERAND (TREE_CHECK (NODE, REQUIRES_EXPR), 0) 1753 1754/* A TREE_LIST of the requirements for this requires-expression. 1755 The requirements are stored in lexical order within the TREE_VALUE 1756 of each TREE_LIST node. The TREE_PURPOSE of each node is unused. */ 1757#define REQUIRES_EXPR_REQS(NODE) \ 1758 TREE_OPERAND (TREE_CHECK (NODE, REQUIRES_EXPR), 1) 1759 1760/* Like PACK_EXPANSION_EXTRA_ARGS, for requires-expressions. */ 1761#define REQUIRES_EXPR_EXTRA_ARGS(NODE) \ 1762 TREE_OPERAND (TREE_CHECK (NODE, REQUIRES_EXPR), 2) 1763 1764enum cp_tree_node_structure_enum { 1765 TS_CP_GENERIC, 1766 TS_CP_IDENTIFIER, 1767 TS_CP_TPI, 1768 TS_CP_PTRMEM, 1769 TS_CP_OVERLOAD, 1770 TS_CP_BINDING_VECTOR, 1771 TS_CP_BASELINK, 1772 TS_CP_TEMPLATE_DECL, 1773 TS_CP_DEFERRED_PARSE, 1774 TS_CP_DEFERRED_NOEXCEPT, 1775 TS_CP_STATIC_ASSERT, 1776 TS_CP_ARGUMENT_PACK_SELECT, 1777 TS_CP_TRAIT_EXPR, 1778 TS_CP_LAMBDA_EXPR, 1779 TS_CP_TEMPLATE_INFO, 1780 TS_CP_CONSTRAINT_INFO, 1781 TS_CP_USERDEF_LITERAL 1782}; 1783 1784/* The resulting tree type. */ 1785union GTY((desc ("cp_tree_node_structure (&%h)"), 1786 chain_next ("(union lang_tree_node *) c_tree_chain_next (&%h.generic)"))) lang_tree_node { 1787 union tree_node GTY ((tag ("TS_CP_GENERIC"), 1788 desc ("tree_node_structure (&%h)"))) generic; 1789 struct template_parm_index GTY ((tag ("TS_CP_TPI"))) tpi; 1790 struct ptrmem_cst GTY ((tag ("TS_CP_PTRMEM"))) ptrmem; 1791 struct tree_overload GTY ((tag ("TS_CP_OVERLOAD"))) overload; 1792 struct tree_binding_vec GTY ((tag ("TS_CP_BINDING_VECTOR"))) binding_vec; 1793 struct tree_baselink GTY ((tag ("TS_CP_BASELINK"))) baselink; 1794 struct tree_template_decl GTY ((tag ("TS_CP_TEMPLATE_DECL"))) template_decl; 1795 struct tree_deferred_parse GTY ((tag ("TS_CP_DEFERRED_PARSE"))) deferred_parse; 1796 struct tree_deferred_noexcept GTY ((tag ("TS_CP_DEFERRED_NOEXCEPT"))) deferred_noexcept; 1797 struct lang_identifier GTY ((tag ("TS_CP_IDENTIFIER"))) identifier; 1798 struct tree_static_assert GTY ((tag ("TS_CP_STATIC_ASSERT"))) 1799 static_assertion; 1800 struct tree_argument_pack_select GTY ((tag ("TS_CP_ARGUMENT_PACK_SELECT"))) 1801 argument_pack_select; 1802 struct tree_trait_expr GTY ((tag ("TS_CP_TRAIT_EXPR"))) 1803 trait_expression; 1804 struct tree_lambda_expr GTY ((tag ("TS_CP_LAMBDA_EXPR"))) 1805 lambda_expression; 1806 struct tree_template_info GTY ((tag ("TS_CP_TEMPLATE_INFO"))) 1807 template_info; 1808 struct tree_constraint_info GTY ((tag ("TS_CP_CONSTRAINT_INFO"))) 1809 constraint_info; 1810 struct tree_userdef_literal GTY ((tag ("TS_CP_USERDEF_LITERAL"))) 1811 userdef_literal; 1812}; 1813 1814 1815struct GTY(()) omp_declare_target_attr { 1816 bool attr_syntax; 1817}; 1818 1819/* Global state. */ 1820 1821struct GTY(()) saved_scope { 1822 vec<cxx_saved_binding, va_gc> *old_bindings; 1823 tree old_namespace; 1824 vec<tree, va_gc> *decl_ns_list; 1825 tree class_name; 1826 tree class_type; 1827 tree access_specifier; 1828 tree function_decl; 1829 vec<tree, va_gc> *lang_base; 1830 tree lang_name; 1831 tree template_parms; 1832 cp_binding_level *x_previous_class_level; 1833 tree x_saved_tree; 1834 1835 /* Only used for uses of this in trailing return type. */ 1836 tree x_current_class_ptr; 1837 tree x_current_class_ref; 1838 1839 int x_processing_template_decl; 1840 int x_processing_specialization; 1841 int x_processing_constraint; 1842 int suppress_location_wrappers; 1843 BOOL_BITFIELD x_processing_explicit_instantiation : 1; 1844 BOOL_BITFIELD need_pop_function_context : 1; 1845 1846 /* Nonzero if we are parsing the discarded statement of a constexpr 1847 if-statement. */ 1848 BOOL_BITFIELD discarded_stmt : 1; 1849 /* Nonzero if we are parsing or instantiating the compound-statement 1850 of consteval if statement. Also set while processing an immediate 1851 invocation. */ 1852 BOOL_BITFIELD consteval_if_p : 1; 1853 1854 int unevaluated_operand; 1855 int inhibit_evaluation_warnings; 1856 int noexcept_operand; 1857 int ref_temp_count; 1858 1859 struct stmt_tree_s x_stmt_tree; 1860 1861 cp_binding_level *class_bindings; 1862 cp_binding_level *bindings; 1863 1864 hash_map<tree, tree> *GTY((skip)) x_local_specializations; 1865 vec<omp_declare_target_attr, va_gc> *omp_declare_target_attribute; 1866 1867 struct saved_scope *prev; 1868}; 1869 1870extern GTY(()) struct saved_scope *scope_chain; 1871 1872/* The current open namespace. */ 1873 1874#define current_namespace scope_chain->old_namespace 1875 1876/* The stack for namespaces of current declarations. */ 1877 1878#define decl_namespace_list scope_chain->decl_ns_list 1879 1880/* IDENTIFIER_NODE: name of current class */ 1881 1882#define current_class_name scope_chain->class_name 1883 1884/* _TYPE: the type of the current class */ 1885 1886#define current_class_type scope_chain->class_type 1887 1888/* When parsing a class definition, the access specifier most recently 1889 given by the user, or, if no access specifier was given, the 1890 default value appropriate for the kind of class (i.e., struct, 1891 class, or union). */ 1892 1893#define current_access_specifier scope_chain->access_specifier 1894 1895/* Pointer to the top of the language name stack. */ 1896 1897#define current_lang_base scope_chain->lang_base 1898#define current_lang_name scope_chain->lang_name 1899 1900/* When parsing a template declaration, a TREE_LIST represents the 1901 active template parameters. Each node in the list represents one 1902 level of template parameters. The innermost level is first in the 1903 list. The depth of each level is stored as an INTEGER_CST in the 1904 TREE_PURPOSE of each node. The parameters for that level are 1905 stored in the TREE_VALUE. */ 1906 1907#define current_template_parms scope_chain->template_parms 1908#define current_template_depth \ 1909 (current_template_parms ? TMPL_PARMS_DEPTH (current_template_parms) : 0) 1910 1911#define processing_template_decl scope_chain->x_processing_template_decl 1912#define processing_specialization scope_chain->x_processing_specialization 1913#define processing_explicit_instantiation scope_chain->x_processing_explicit_instantiation 1914 1915#define in_discarded_stmt scope_chain->discarded_stmt 1916#define in_consteval_if_p scope_chain->consteval_if_p 1917 1918#define current_ref_temp_count scope_chain->ref_temp_count 1919 1920/* RAII sentinel to handle clearing processing_template_decl and restoring 1921 it when done. */ 1922 1923class processing_template_decl_sentinel 1924{ 1925public: 1926 int saved; 1927 processing_template_decl_sentinel (bool reset = true) 1928 : saved (processing_template_decl) 1929 { 1930 if (reset) 1931 processing_template_decl = 0; 1932 } 1933 ~processing_template_decl_sentinel() 1934 { 1935 processing_template_decl = saved; 1936 } 1937}; 1938 1939/* RAII sentinel to disable certain warnings during template substitution 1940 and elsewhere. */ 1941 1942class warning_sentinel 1943{ 1944public: 1945 int &flag; 1946 int val; 1947 warning_sentinel(int& flag, bool suppress=true) 1948 : flag(flag), val(flag) { if (suppress) flag = 0; } 1949 ~warning_sentinel() { flag = val; } 1950}; 1951 1952/* RAII sentinel to temporarily override input_location. This will not set 1953 input_location to UNKNOWN_LOCATION or BUILTINS_LOCATION. */ 1954 1955class iloc_sentinel 1956{ 1957 location_t saved_loc; 1958public: 1959 iloc_sentinel (location_t loc): saved_loc (input_location) 1960 { 1961 if (loc >= RESERVED_LOCATION_COUNT) 1962 input_location = loc; 1963 } 1964 ~iloc_sentinel () 1965 { 1966 input_location = saved_loc; 1967 } 1968}; 1969 1970/* RAII sentinel that saves the value of a variable, optionally 1971 overrides it right away, and restores its value when the sentinel 1972 id destructed. */ 1973 1974template <typename T> 1975class temp_override 1976{ 1977 T& overridden_variable; 1978 T saved_value; 1979public: 1980 temp_override(T& var) : overridden_variable (var), saved_value (var) {} 1981 temp_override(T& var, T overrider) 1982 : overridden_variable (var), saved_value (var) 1983 { 1984 overridden_variable = overrider; 1985 } 1986 ~temp_override() { overridden_variable = saved_value; } 1987}; 1988 1989/* Wrapping a template parameter in type_identity_t hides it from template 1990 argument deduction. */ 1991#if __cpp_lib_type_identity 1992using std::type_identity_t; 1993#else 1994template <typename T> 1995struct type_identity { typedef T type; }; 1996template <typename T> 1997using type_identity_t = typename type_identity<T>::type; 1998#endif 1999 2000/* Object generator function for temp_override, so you don't need to write the 2001 type of the object as a template argument. 2002 2003 Use as auto x = make_temp_override (flag); */ 2004 2005template <typename T> 2006inline temp_override<T> 2007make_temp_override (T& var) 2008{ 2009 return { var }; 2010} 2011 2012/* Likewise, but use as auto x = make_temp_override (flag, value); */ 2013 2014template <typename T> 2015inline temp_override<T> 2016make_temp_override (T& var, type_identity_t<T> overrider) 2017{ 2018 return { var, overrider }; 2019} 2020 2021/* The cached class binding level, from the most recently exited 2022 class, or NULL if none. */ 2023 2024#define previous_class_level scope_chain->x_previous_class_level 2025 2026/* A map from local variable declarations in the body of the template 2027 presently being instantiated to the corresponding instantiated 2028 local variables. */ 2029 2030#define local_specializations scope_chain->x_local_specializations 2031 2032/* Nonzero if we are parsing the operand of a noexcept operator. */ 2033 2034#define cp_noexcept_operand scope_chain->noexcept_operand 2035 2036struct named_label_entry; /* Defined in decl.cc. */ 2037 2038struct named_label_hash : ggc_remove <named_label_entry *> 2039{ 2040 typedef named_label_entry *value_type; 2041 typedef tree compare_type; /* An identifier. */ 2042 2043 inline static hashval_t hash (value_type); 2044 inline static bool equal (const value_type, compare_type); 2045 2046 static const bool empty_zero_p = true; 2047 inline static void mark_empty (value_type &p) {p = NULL;} 2048 inline static bool is_empty (value_type p) {return !p;} 2049 2050 /* Nothing is deletable. Everything is insertable. */ 2051 inline static bool is_deleted (value_type) { return false; } 2052 inline static void mark_deleted (value_type) { gcc_unreachable (); } 2053}; 2054 2055/* Global state pertinent to the current function. */ 2056 2057struct GTY(()) language_function { 2058 struct c_language_function base; 2059 2060 tree x_cdtor_label; 2061 tree x_current_class_ptr; 2062 tree x_current_class_ref; 2063 tree x_eh_spec_block; 2064 tree x_in_charge_parm; 2065 tree x_vtt_parm; 2066 tree x_return_value; 2067 2068 BOOL_BITFIELD returns_value : 1; 2069 BOOL_BITFIELD returns_null : 1; 2070 BOOL_BITFIELD returns_abnormally : 1; 2071 BOOL_BITFIELD infinite_loop: 1; 2072 BOOL_BITFIELD x_in_function_try_handler : 1; 2073 BOOL_BITFIELD x_in_base_initializer : 1; 2074 2075 /* True if this function can throw an exception. */ 2076 BOOL_BITFIELD can_throw : 1; 2077 2078 BOOL_BITFIELD invalid_constexpr : 1; 2079 BOOL_BITFIELD throwing_cleanup : 1; 2080 2081 hash_table<named_label_hash> *x_named_labels; 2082 2083 cp_binding_level *bindings; 2084 2085 /* Tracking possibly infinite loops. This is a vec<tree> only because 2086 vec<bool> doesn't work with gtype. */ 2087 vec<tree, va_gc> *infinite_loops; 2088}; 2089 2090/* The current C++-specific per-function global variables. */ 2091 2092#define cp_function_chain (cfun->language) 2093 2094/* In a constructor destructor, the point at which all derived class 2095 destroying/construction has been done. I.e., just before a 2096 constructor returns, or before any base class destroying will be done 2097 in a destructor. */ 2098 2099#define cdtor_label cp_function_chain->x_cdtor_label 2100 2101/* When we're processing a member function, current_class_ptr is the 2102 PARM_DECL for the `this' pointer. The current_class_ref is an 2103 expression for `*this'. */ 2104 2105#define current_class_ptr \ 2106 (*(cfun && cp_function_chain \ 2107 ? &cp_function_chain->x_current_class_ptr \ 2108 : &scope_chain->x_current_class_ptr)) 2109#define current_class_ref \ 2110 (*(cfun && cp_function_chain \ 2111 ? &cp_function_chain->x_current_class_ref \ 2112 : &scope_chain->x_current_class_ref)) 2113 2114/* The EH_SPEC_BLOCK for the exception-specifiers for the current 2115 function, if any. */ 2116 2117#define current_eh_spec_block cp_function_chain->x_eh_spec_block 2118 2119/* The `__in_chrg' parameter for the current function. Only used for 2120 constructors and destructors. */ 2121 2122#define current_in_charge_parm cp_function_chain->x_in_charge_parm 2123 2124/* The `__vtt_parm' parameter for the current function. Only used for 2125 constructors and destructors. */ 2126 2127#define current_vtt_parm cp_function_chain->x_vtt_parm 2128 2129/* A boolean flag to control whether we need to clean up the return value if a 2130 local destructor throws. Only used in functions that return by value a 2131 class with a destructor. Which 'tors don't, so we can use the same 2132 field as current_vtt_parm. */ 2133 2134#define current_retval_sentinel current_vtt_parm 2135 2136/* Set to 0 at beginning of a function definition, set to 1 if 2137 a return statement that specifies a return value is seen. */ 2138 2139#define current_function_returns_value cp_function_chain->returns_value 2140 2141/* Set to 0 at beginning of a function definition, set to 1 if 2142 a return statement with no argument is seen. */ 2143 2144#define current_function_returns_null cp_function_chain->returns_null 2145 2146/* Set to 0 at beginning of a function definition, set to 1 if 2147 a call to a noreturn function is seen. */ 2148 2149#define current_function_returns_abnormally \ 2150 cp_function_chain->returns_abnormally 2151 2152/* Set to 0 at beginning of a function definition, set to 1 if we see an 2153 obvious infinite loop. This can have false positives and false 2154 negatives, so it should only be used as a heuristic. */ 2155 2156#define current_function_infinite_loop cp_function_chain->infinite_loop 2157 2158/* Nonzero if we are processing a base initializer. Zero elsewhere. */ 2159#define in_base_initializer cp_function_chain->x_in_base_initializer 2160 2161#define in_function_try_handler cp_function_chain->x_in_function_try_handler 2162 2163/* Expression always returned from function, or error_mark_node 2164 otherwise, for use by the automatic named return value optimization. */ 2165 2166#define current_function_return_value \ 2167 (cp_function_chain->x_return_value) 2168 2169/* In parser.cc. */ 2170extern tree cp_literal_operator_id (const char *); 2171 2172#define NON_ERROR(NODE) ((NODE) == error_mark_node ? NULL_TREE : (NODE)) 2173 2174/* TRUE if a tree code represents a statement. */ 2175extern bool statement_code_p[MAX_TREE_CODES]; 2176 2177#define STATEMENT_CODE_P(CODE) statement_code_p[(int) (CODE)] 2178 2179enum languages { lang_c, lang_cplusplus }; 2180 2181/* Macros to make error reporting functions' lives easier. */ 2182#define TYPE_LINKAGE_IDENTIFIER(NODE) \ 2183 (TYPE_IDENTIFIER (TYPE_MAIN_VARIANT (NODE))) 2184#define TYPE_NAME_STRING(NODE) (IDENTIFIER_POINTER (TYPE_IDENTIFIER (NODE))) 2185#define TYPE_NAME_LENGTH(NODE) (IDENTIFIER_LENGTH (TYPE_IDENTIFIER (NODE))) 2186 2187/* Any kind of anonymous type. */ 2188#define TYPE_ANON_P(NODE) \ 2189 (TYPE_LINKAGE_IDENTIFIER (NODE) \ 2190 && IDENTIFIER_ANON_P (TYPE_LINKAGE_IDENTIFIER (NODE))) 2191 2192/* Nonzero if NODE, a TYPE, has no name for linkage purposes. */ 2193#define TYPE_UNNAMED_P(NODE) \ 2194 (TYPE_ANON_P (NODE) \ 2195 && !IDENTIFIER_LAMBDA_P (TYPE_LINKAGE_IDENTIFIER (NODE))) 2196 2197/* The _DECL for this _TYPE. */ 2198#define TYPE_MAIN_DECL(NODE) (TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE))) 2199 2200/* Nonzero if T is a type that could resolve to any kind of concrete type 2201 at instantiation time. */ 2202#define WILDCARD_TYPE_P(T) \ 2203 (TREE_CODE (T) == TEMPLATE_TYPE_PARM \ 2204 || TREE_CODE (T) == TYPENAME_TYPE \ 2205 || TREE_CODE (T) == TYPEOF_TYPE \ 2206 || TREE_CODE (T) == BOUND_TEMPLATE_TEMPLATE_PARM \ 2207 || TREE_CODE (T) == DECLTYPE_TYPE \ 2208 || TREE_CODE (T) == DEPENDENT_OPERATOR_TYPE) 2209 2210/* Nonzero if T is a class (or struct or union) type. Also nonzero 2211 for template type parameters, typename types, and instantiated 2212 template template parameters. Keep these checks in ascending code 2213 order. */ 2214#define MAYBE_CLASS_TYPE_P(T) (WILDCARD_TYPE_P (T) || CLASS_TYPE_P (T)) 2215 2216/* Set CLASS_TYPE_P for T to VAL. T must be a class, struct, or 2217 union type. */ 2218#define SET_CLASS_TYPE_P(T, VAL) \ 2219 (TYPE_LANG_FLAG_5 (RECORD_OR_UNION_CHECK (T)) = (VAL)) 2220 2221/* Nonzero if T is a class type. Zero for template type parameters, 2222 typename types, and so forth. */ 2223#define CLASS_TYPE_P(T) \ 2224 (RECORD_OR_UNION_CODE_P (TREE_CODE (T)) && TYPE_LANG_FLAG_5 (T)) 2225 2226/* Nonzero if T is a class type but not a union. */ 2227#define NON_UNION_CLASS_TYPE_P(T) \ 2228 (TREE_CODE (T) == RECORD_TYPE && TYPE_LANG_FLAG_5 (T)) 2229 2230/* Keep these checks in ascending code order. */ 2231#define RECORD_OR_UNION_CODE_P(T) \ 2232 ((T) == RECORD_TYPE || (T) == UNION_TYPE) 2233#define OVERLOAD_TYPE_P(T) \ 2234 (CLASS_TYPE_P (T) || TREE_CODE (T) == ENUMERAL_TYPE) 2235 2236/* True if this type is dependent. This predicate is only valid if 2237 TYPE_DEPENDENT_P_VALID is true. */ 2238#define TYPE_DEPENDENT_P(NODE) TYPE_LANG_FLAG_0 (NODE) 2239 2240/* True if dependent_type_p has been called for this type, with the 2241 result that TYPE_DEPENDENT_P is valid. */ 2242#define TYPE_DEPENDENT_P_VALID(NODE) TYPE_LANG_FLAG_6(NODE) 2243 2244/* Nonzero if this type is const-qualified. */ 2245#define CP_TYPE_CONST_P(NODE) \ 2246 ((cp_type_quals (NODE) & TYPE_QUAL_CONST) != 0) 2247 2248/* Nonzero if this type is volatile-qualified. */ 2249#define CP_TYPE_VOLATILE_P(NODE) \ 2250 ((cp_type_quals (NODE) & TYPE_QUAL_VOLATILE) != 0) 2251 2252/* Nonzero if this type is restrict-qualified. */ 2253#define CP_TYPE_RESTRICT_P(NODE) \ 2254 ((cp_type_quals (NODE) & TYPE_QUAL_RESTRICT) != 0) 2255 2256/* Nonzero if this type is const-qualified, but not 2257 volatile-qualified. Other qualifiers are ignored. This macro is 2258 used to test whether or not it is OK to bind an rvalue to a 2259 reference. */ 2260#define CP_TYPE_CONST_NON_VOLATILE_P(NODE) \ 2261 ((cp_type_quals (NODE) & (TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE)) \ 2262 == TYPE_QUAL_CONST) 2263 2264#define FUNCTION_ARG_CHAIN(NODE) \ 2265 TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (NODE))) 2266 2267/* Given a FUNCTION_DECL, returns the first TREE_LIST out of TYPE_ARG_TYPES 2268 which refers to a user-written parameter. */ 2269#define FUNCTION_FIRST_USER_PARMTYPE(NODE) \ 2270 skip_artificial_parms_for ((NODE), TYPE_ARG_TYPES (TREE_TYPE (NODE))) 2271 2272/* Similarly, but for DECL_ARGUMENTS. */ 2273#define FUNCTION_FIRST_USER_PARM(NODE) \ 2274 skip_artificial_parms_for ((NODE), DECL_ARGUMENTS (NODE)) 2275 2276/* Nonzero iff TYPE is derived from PARENT. Ignores accessibility and 2277 ambiguity issues. */ 2278#define DERIVED_FROM_P(PARENT, TYPE) \ 2279 (lookup_base ((TYPE), (PARENT), ba_any, NULL, tf_none) != NULL_TREE) 2280 2281/* Gives the visibility specification for a class type. */ 2282#define CLASSTYPE_VISIBILITY(TYPE) \ 2283 DECL_VISIBILITY (TYPE_MAIN_DECL (TYPE)) 2284#define CLASSTYPE_VISIBILITY_SPECIFIED(TYPE) \ 2285 DECL_VISIBILITY_SPECIFIED (TYPE_MAIN_DECL (TYPE)) 2286 2287struct GTY (()) tree_pair_s { 2288 tree purpose; 2289 tree value; 2290}; 2291typedef tree_pair_s *tree_pair_p; 2292 2293/* This structure provides additional information above and beyond 2294 what is provide in the ordinary tree_type. In the past, we used it 2295 for the types of class types, template parameters types, typename 2296 types, and so forth. However, there can be many (tens to hundreds 2297 of thousands) of template parameter types in a compilation, and 2298 there's no need for this additional information in that case. 2299 Therefore, we now use this data structure only for class types. 2300 2301 In the past, it was thought that there would be relatively few 2302 class types. However, in the presence of heavy use of templates, 2303 many (i.e., thousands) of classes can easily be generated. 2304 Therefore, we should endeavor to keep the size of this structure to 2305 a minimum. */ 2306struct GTY(()) lang_type { 2307 unsigned char align; 2308 2309 unsigned has_type_conversion : 1; 2310 unsigned has_copy_ctor : 1; 2311 unsigned has_default_ctor : 1; 2312 unsigned const_needs_init : 1; 2313 unsigned ref_needs_init : 1; 2314 unsigned has_const_copy_assign : 1; 2315 unsigned use_template : 2; 2316 2317 unsigned has_mutable : 1; 2318 unsigned com_interface : 1; 2319 unsigned non_pod_class : 1; 2320 unsigned nearly_empty_p : 1; 2321 unsigned user_align : 1; 2322 unsigned has_copy_assign : 1; 2323 unsigned has_new : 1; 2324 unsigned has_array_new : 1; 2325 2326 unsigned gets_delete : 2; 2327 unsigned interface_only : 1; 2328 unsigned interface_unknown : 1; 2329 unsigned contains_empty_class_p : 1; 2330 unsigned anon_aggr : 1; 2331 unsigned non_zero_init : 1; 2332 unsigned empty_p : 1; 2333 /* 32 bits allocated. */ 2334 2335 unsigned vec_new_uses_cookie : 1; 2336 unsigned declared_class : 1; 2337 unsigned diamond_shaped : 1; 2338 unsigned repeated_base : 1; 2339 unsigned being_defined : 1; 2340 unsigned debug_requested : 1; 2341 unsigned fields_readonly : 1; 2342 unsigned ptrmemfunc_flag : 1; 2343 2344 unsigned lazy_default_ctor : 1; 2345 unsigned lazy_copy_ctor : 1; 2346 unsigned lazy_copy_assign : 1; 2347 unsigned lazy_destructor : 1; 2348 unsigned has_const_copy_ctor : 1; 2349 unsigned has_complex_copy_ctor : 1; 2350 unsigned has_complex_copy_assign : 1; 2351 unsigned non_aggregate : 1; 2352 2353 unsigned has_complex_dflt : 1; 2354 unsigned has_list_ctor : 1; 2355 unsigned non_std_layout : 1; 2356 unsigned is_literal : 1; 2357 unsigned lazy_move_ctor : 1; 2358 unsigned lazy_move_assign : 1; 2359 unsigned has_complex_move_ctor : 1; 2360 unsigned has_complex_move_assign : 1; 2361 2362 unsigned has_constexpr_ctor : 1; 2363 unsigned unique_obj_representations : 1; 2364 unsigned unique_obj_representations_set : 1; 2365 bool erroneous : 1; 2366 bool non_pod_aggregate : 1; 2367 2368 /* When adding a flag here, consider whether or not it ought to 2369 apply to a template instance if it applies to the template. If 2370 so, make sure to copy it in instantiate_class_template! */ 2371 2372 /* There are some bits left to fill out a 32-bit word. Keep track 2373 of this by updating the size of this bitfield whenever you add or 2374 remove a flag. */ 2375 unsigned dummy : 3; 2376 2377 tree primary_base; 2378 vec<tree_pair_s, va_gc> *vcall_indices; 2379 tree vtables; 2380 tree typeinfo_var; 2381 vec<tree, va_gc> *vbases; 2382 tree as_base; 2383 vec<tree, va_gc> *pure_virtuals; 2384 tree friend_classes; 2385 vec<tree, va_gc> * GTY((reorder ("resort_type_member_vec"))) members; 2386 tree key_method; 2387 tree decl_list; 2388 tree befriending_classes; 2389 /* In a RECORD_TYPE, information specific to Objective-C++, such 2390 as a list of adopted protocols or a pointer to a corresponding 2391 @interface. See objc/objc-act.h for details. */ 2392 tree objc_info; 2393 /* FIXME reuse another field? */ 2394 tree lambda_expr; 2395}; 2396 2397/* We used to have a variant type for lang_type. Keep the name of the 2398 checking accessor for the sole survivor. */ 2399#define LANG_TYPE_CLASS_CHECK(NODE) (TYPE_LANG_SPECIFIC (NODE)) 2400 2401/* Nonzero for _CLASSTYPE means that operator delete is defined. */ 2402#define TYPE_GETS_DELETE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->gets_delete) 2403#define TYPE_GETS_REG_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 1) 2404#define TYPE_GETS_VEC_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 2) 2405 2406/* Nonzero if `new NODE[x]' should cause the allocation of extra 2407 storage to indicate how many array elements are in use. */ 2408#define TYPE_VEC_NEW_USES_COOKIE(NODE) \ 2409 (CLASS_TYPE_P (NODE) \ 2410 && LANG_TYPE_CLASS_CHECK (NODE)->vec_new_uses_cookie) 2411 2412/* Nonzero means that this _CLASSTYPE node defines ways of converting 2413 itself to other types. */ 2414#define TYPE_HAS_CONVERSION(NODE) \ 2415 (LANG_TYPE_CLASS_CHECK (NODE)->has_type_conversion) 2416 2417/* Nonzero means that NODE (a class type) has a default constructor -- 2418 but that it has not yet been declared. */ 2419#define CLASSTYPE_LAZY_DEFAULT_CTOR(NODE) \ 2420 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_default_ctor) 2421 2422/* Nonzero means that NODE (a class type) has a copy constructor -- 2423 but that it has not yet been declared. */ 2424#define CLASSTYPE_LAZY_COPY_CTOR(NODE) \ 2425 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_ctor) 2426 2427/* Nonzero means that NODE (a class type) has a move constructor -- 2428 but that it has not yet been declared. */ 2429#define CLASSTYPE_LAZY_MOVE_CTOR(NODE) \ 2430 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_move_ctor) 2431 2432/* Nonzero means that NODE (a class type) has an assignment operator 2433 -- but that it has not yet been declared. */ 2434#define CLASSTYPE_LAZY_COPY_ASSIGN(NODE) \ 2435 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_assign) 2436 2437/* Nonzero means that NODE (a class type) has an assignment operator 2438 -- but that it has not yet been declared. */ 2439#define CLASSTYPE_LAZY_MOVE_ASSIGN(NODE) \ 2440 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_move_assign) 2441 2442/* Nonzero means that NODE (a class type) has a destructor -- but that 2443 it has not yet been declared. */ 2444#define CLASSTYPE_LAZY_DESTRUCTOR(NODE) \ 2445 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_destructor) 2446 2447/* Nonzero means that NODE (a class type) is final */ 2448#define CLASSTYPE_FINAL(NODE) \ 2449 TYPE_FINAL_P (NODE) 2450 2451 2452/* Nonzero means that this _CLASSTYPE node overloads operator=(X&). */ 2453#define TYPE_HAS_COPY_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_copy_assign) 2454 2455/* True iff the class type NODE has an "operator =" whose parameter 2456 has a parameter of type "const X&". */ 2457#define TYPE_HAS_CONST_COPY_ASSIGN(NODE) \ 2458 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_copy_assign) 2459 2460/* Nonzero means that this _CLASSTYPE node has an X(X&) constructor. */ 2461#define TYPE_HAS_COPY_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_copy_ctor) 2462#define TYPE_HAS_CONST_COPY_CTOR(NODE) \ 2463 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_copy_ctor) 2464 2465/* Nonzero if this class has an X(initializer_list<T>) constructor. */ 2466#define TYPE_HAS_LIST_CTOR(NODE) \ 2467 (LANG_TYPE_CLASS_CHECK (NODE)->has_list_ctor) 2468 2469/* Nonzero if this class has a constexpr constructor other than a copy/move 2470 constructor. Note that a class can have constexpr constructors for 2471 static initialization even if it isn't a literal class. */ 2472#define TYPE_HAS_CONSTEXPR_CTOR(NODE) \ 2473 (LANG_TYPE_CLASS_CHECK (NODE)->has_constexpr_ctor) 2474 2475/* Nonzero if this class defines an overloaded operator new. (An 2476 operator new [] doesn't count.) */ 2477#define TYPE_HAS_NEW_OPERATOR(NODE) \ 2478 (LANG_TYPE_CLASS_CHECK (NODE)->has_new) 2479 2480/* Nonzero if this class defines an overloaded operator new[]. */ 2481#define TYPE_HAS_ARRAY_NEW_OPERATOR(NODE) \ 2482 (LANG_TYPE_CLASS_CHECK (NODE)->has_array_new) 2483 2484/* Nonzero means that this type is being defined. I.e., the left brace 2485 starting the definition of this type has been seen. */ 2486#define TYPE_BEING_DEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->being_defined) 2487 2488/* Nonzero means that this type is either complete or being defined, so we 2489 can do lookup in it. */ 2490#define COMPLETE_OR_OPEN_TYPE_P(NODE) \ 2491 (COMPLETE_TYPE_P (NODE) || (CLASS_TYPE_P (NODE) && TYPE_BEING_DEFINED (NODE))) 2492 2493/* Mark bits for repeated base checks. */ 2494#define TYPE_MARKED_P(NODE) TREE_LANG_FLAG_6 (TYPE_CHECK (NODE)) 2495 2496/* Nonzero if the class NODE has multiple paths to the same (virtual) 2497 base object. */ 2498#define CLASSTYPE_DIAMOND_SHAPED_P(NODE) \ 2499 (LANG_TYPE_CLASS_CHECK(NODE)->diamond_shaped) 2500 2501/* Nonzero if the class NODE has multiple instances of the same base 2502 type. */ 2503#define CLASSTYPE_REPEATED_BASE_P(NODE) \ 2504 (LANG_TYPE_CLASS_CHECK(NODE)->repeated_base) 2505 2506/* The member function with which the vtable will be emitted: 2507 the first noninline non-pure-virtual member function. NULL_TREE 2508 if there is no key function or if this is a class template */ 2509#define CLASSTYPE_KEY_METHOD(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->key_method) 2510 2511/* Vector of members. During definition, it is unordered and only 2512 member functions are present. After completion it is sorted and 2513 contains both member functions and non-functions. STAT_HACK is 2514 involved to preserve oneslot per name invariant. */ 2515#define CLASSTYPE_MEMBER_VEC(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->members) 2516 2517/* For class templates, this is a TREE_LIST of all member data, 2518 functions, types, and friends in the order of declaration. 2519 The TREE_PURPOSE of each TREE_LIST is NULL_TREE for a friend, 2520 and the RECORD_TYPE for the class template otherwise. */ 2521#define CLASSTYPE_DECL_LIST(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->decl_list) 2522 2523/* A FUNCTION_DECL or OVERLOAD for the constructors for NODE. These 2524 are the constructors that take an in-charge parameter. */ 2525#define CLASSTYPE_CONSTRUCTORS(NODE) \ 2526 (get_class_binding_direct (NODE, ctor_identifier)) 2527 2528/* A FUNCTION_DECL for the destructor for NODE. This is the 2529 destructors that take an in-charge parameter. If 2530 CLASSTYPE_LAZY_DESTRUCTOR is true, then this entry will be NULL 2531 until the destructor is created with lazily_declare_fn. */ 2532#define CLASSTYPE_DESTRUCTOR(NODE) \ 2533 (get_class_binding_direct (NODE, dtor_identifier)) 2534 2535/* Nonzero if NODE has a primary base class, i.e., a base class with 2536 which it shares the virtual function table pointer. */ 2537#define CLASSTYPE_HAS_PRIMARY_BASE_P(NODE) \ 2538 (CLASSTYPE_PRIMARY_BINFO (NODE) != NULL_TREE) 2539 2540/* If non-NULL, this is the binfo for the primary base class, i.e., 2541 the base class which contains the virtual function table pointer 2542 for this class. */ 2543#define CLASSTYPE_PRIMARY_BINFO(NODE) \ 2544 (LANG_TYPE_CLASS_CHECK (NODE)->primary_base) 2545 2546/* A vector of BINFOs for the direct and indirect virtual base classes 2547 that this type uses in a post-order depth-first left-to-right 2548 order. (In other words, these bases appear in the order that they 2549 should be initialized.) */ 2550#define CLASSTYPE_VBASECLASSES(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->vbases) 2551 2552/* The type corresponding to NODE when NODE is used as a base class, 2553 i.e., NODE without virtual base classes or tail padding. */ 2554#define CLASSTYPE_AS_BASE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->as_base) 2555 2556/* True iff NODE is the CLASSTYPE_AS_BASE version of some type. */ 2557#define IS_FAKE_BASE_TYPE(NODE) \ 2558 (TREE_CODE (NODE) == RECORD_TYPE \ 2559 && TYPE_CONTEXT (NODE) && CLASS_TYPE_P (TYPE_CONTEXT (NODE)) \ 2560 && CLASSTYPE_AS_BASE (TYPE_CONTEXT (NODE)) == (NODE)) 2561 2562/* These are the size and alignment of the type without its virtual 2563 base classes, for when we use this type as a base itself. */ 2564#define CLASSTYPE_SIZE(NODE) TYPE_SIZE (CLASSTYPE_AS_BASE (NODE)) 2565#define CLASSTYPE_SIZE_UNIT(NODE) TYPE_SIZE_UNIT (CLASSTYPE_AS_BASE (NODE)) 2566#define CLASSTYPE_ALIGN(NODE) TYPE_ALIGN (CLASSTYPE_AS_BASE (NODE)) 2567#define CLASSTYPE_USER_ALIGN(NODE) TYPE_USER_ALIGN (CLASSTYPE_AS_BASE (NODE)) 2568 2569/* The alignment of NODE, without its virtual bases, in bytes. */ 2570#define CLASSTYPE_ALIGN_UNIT(NODE) \ 2571 (CLASSTYPE_ALIGN (NODE) / BITS_PER_UNIT) 2572 2573/* A vec<tree> of virtual functions which cannot be inherited by 2574 derived classes. When deriving from this type, the derived 2575 class must provide its own definition for each of these functions. */ 2576#define CLASSTYPE_PURE_VIRTUALS(NODE) \ 2577 (LANG_TYPE_CLASS_CHECK (NODE)->pure_virtuals) 2578 2579/* Nonzero means that this type is an abstract class type. */ 2580#define ABSTRACT_CLASS_TYPE_P(NODE) \ 2581 (CLASS_TYPE_P (NODE) && CLASSTYPE_PURE_VIRTUALS(NODE)) 2582 2583/* Nonzero means that this type has an X() constructor. */ 2584#define TYPE_HAS_DEFAULT_CONSTRUCTOR(NODE) \ 2585 (LANG_TYPE_CLASS_CHECK (NODE)->has_default_ctor) 2586 2587/* Nonzero means that this type contains a mutable member. */ 2588#define CLASSTYPE_HAS_MUTABLE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_mutable) 2589#define TYPE_HAS_MUTABLE_P(NODE) (cp_has_mutable_p (NODE)) 2590 2591/* Nonzero means that this class type is not POD for the purpose of layout 2592 (as defined in the ABI). This is different from the language's POD. */ 2593#define CLASSTYPE_NON_LAYOUT_POD_P(NODE) \ 2594 (LANG_TYPE_CLASS_CHECK (NODE)->non_pod_class) 2595 2596/* Nonzero means that this class type is a non-standard-layout class. */ 2597#define CLASSTYPE_NON_STD_LAYOUT(NODE) \ 2598 (LANG_TYPE_CLASS_CHECK (NODE)->non_std_layout) 2599 2600/* Nonzero means that this class type does have unique object 2601 representations. */ 2602#define CLASSTYPE_UNIQUE_OBJ_REPRESENTATIONS(NODE) \ 2603 (LANG_TYPE_CLASS_CHECK (NODE)->unique_obj_representations) 2604 2605/* Nonzero means that this class type has 2606 CLASSTYPE_UNIQUE_OBJ_REPRESENTATIONS computed. */ 2607#define CLASSTYPE_UNIQUE_OBJ_REPRESENTATIONS_SET(NODE) \ 2608 (LANG_TYPE_CLASS_CHECK (NODE)->unique_obj_representations_set) 2609 2610/* Nonzero means that this class contains pod types whose default 2611 initialization is not a zero initialization (namely, pointers to 2612 data members). */ 2613#define CLASSTYPE_NON_ZERO_INIT_P(NODE) \ 2614 (LANG_TYPE_CLASS_CHECK (NODE)->non_zero_init) 2615 2616/* Nonzero if this class is "empty" in the sense of the C++ ABI. */ 2617#define CLASSTYPE_EMPTY_P(NODE) \ 2618 (LANG_TYPE_CLASS_CHECK (NODE)->empty_p) 2619 2620/* Nonzero if this class is "nearly empty", i.e., contains only a 2621 virtual function table pointer. */ 2622#define CLASSTYPE_NEARLY_EMPTY_P(NODE) \ 2623 (LANG_TYPE_CLASS_CHECK (NODE)->nearly_empty_p) 2624 2625/* Nonzero if this class contains an empty subobject. */ 2626#define CLASSTYPE_CONTAINS_EMPTY_CLASS_P(NODE) \ 2627 (LANG_TYPE_CLASS_CHECK (NODE)->contains_empty_class_p) 2628 2629/* A list of class types of which this type is a friend. The 2630 TREE_VALUE is normally a TYPE, but will be a TEMPLATE_DECL in the 2631 case of a template friend. */ 2632#define CLASSTYPE_FRIEND_CLASSES(NODE) \ 2633 (LANG_TYPE_CLASS_CHECK (NODE)->friend_classes) 2634 2635/* A list of the classes which grant friendship to this class. */ 2636#define CLASSTYPE_BEFRIENDING_CLASSES(NODE) \ 2637 (LANG_TYPE_CLASS_CHECK (NODE)->befriending_classes) 2638 2639/* The associated LAMBDA_EXPR that made this class. */ 2640#define CLASSTYPE_LAMBDA_EXPR(NODE) \ 2641 (LANG_TYPE_CLASS_CHECK (NODE)->lambda_expr) 2642/* The extra mangling scope for this closure type. */ 2643#define LAMBDA_TYPE_EXTRA_SCOPE(NODE) \ 2644 (LAMBDA_EXPR_EXTRA_SCOPE (CLASSTYPE_LAMBDA_EXPR (NODE))) 2645 2646/* Say whether this node was declared as a "class" or a "struct". */ 2647#define CLASSTYPE_DECLARED_CLASS(NODE) \ 2648 (LANG_TYPE_CLASS_CHECK (NODE)->declared_class) 2649 2650/* Nonzero if this class has const members 2651 which have no specified initialization. */ 2652#define CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE) \ 2653 (TYPE_LANG_SPECIFIC (NODE) \ 2654 ? LANG_TYPE_CLASS_CHECK (NODE)->const_needs_init : 0) 2655#define SET_CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE, VALUE) \ 2656 (LANG_TYPE_CLASS_CHECK (NODE)->const_needs_init = (VALUE)) 2657 2658/* Nonzero if this class has ref members 2659 which have no specified initialization. */ 2660#define CLASSTYPE_REF_FIELDS_NEED_INIT(NODE) \ 2661 (TYPE_LANG_SPECIFIC (NODE) \ 2662 ? LANG_TYPE_CLASS_CHECK (NODE)->ref_needs_init : 0) 2663#define SET_CLASSTYPE_REF_FIELDS_NEED_INIT(NODE, VALUE) \ 2664 (LANG_TYPE_CLASS_CHECK (NODE)->ref_needs_init = (VALUE)) 2665 2666/* Nonzero if this class is included from a header file which employs 2667 `#pragma interface', and it is not included in its implementation file. */ 2668#define CLASSTYPE_INTERFACE_ONLY(NODE) \ 2669 (LANG_TYPE_CLASS_CHECK (NODE)->interface_only) 2670 2671/* True if we have already determined whether or not vtables, VTTs, 2672 typeinfo, and other similar per-class data should be emitted in 2673 this translation unit. This flag does not indicate whether or not 2674 these items should be emitted; it only indicates that we know one 2675 way or the other. */ 2676#define CLASSTYPE_INTERFACE_KNOWN(NODE) \ 2677 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown == 0) 2678/* The opposite of CLASSTYPE_INTERFACE_KNOWN. */ 2679#define CLASSTYPE_INTERFACE_UNKNOWN(NODE) \ 2680 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown) 2681 2682#define SET_CLASSTYPE_INTERFACE_UNKNOWN_X(NODE,X) \ 2683 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = !!(X)) 2684#define SET_CLASSTYPE_INTERFACE_UNKNOWN(NODE) \ 2685 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 1) 2686#define SET_CLASSTYPE_INTERFACE_KNOWN(NODE) \ 2687 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 0) 2688 2689/* Nonzero if a _DECL node requires us to output debug info for this class. */ 2690#define CLASSTYPE_DEBUG_REQUESTED(NODE) \ 2691 (LANG_TYPE_CLASS_CHECK (NODE)->debug_requested) 2692 2693/* True if we saw errors while instantiating this class. */ 2694#define CLASSTYPE_ERRONEOUS(NODE) \ 2695 (LANG_TYPE_CLASS_CHECK (NODE)->erroneous) 2696 2697/* True if this class is non-layout-POD only because it was not an aggregate 2698 before C++14. If we run out of bits in lang_type, this could be replaced 2699 with a hash_set only filled in when abi_version_crosses (17). */ 2700#define CLASSTYPE_NON_POD_AGGREGATE(NODE) \ 2701 (LANG_TYPE_CLASS_CHECK (NODE)->non_pod_aggregate) 2702 2703/* Additional macros for inheritance information. */ 2704 2705/* Nonzero means that this class is on a path leading to a new vtable. */ 2706#define BINFO_VTABLE_PATH_MARKED(NODE) BINFO_FLAG_1 (NODE) 2707 2708/* Nonzero means B (a BINFO) has its own vtable. Any copies will not 2709 have this flag set. */ 2710#define BINFO_NEW_VTABLE_MARKED(B) (BINFO_FLAG_2 (B)) 2711 2712/* Compare a BINFO_TYPE with another type for equality. For a binfo, 2713 this is functionally equivalent to using same_type_p, but 2714 measurably faster. At least one of the arguments must be a 2715 BINFO_TYPE. The other can be a BINFO_TYPE or a regular type. If 2716 BINFO_TYPE(T) ever stops being the main variant of the class the 2717 binfo is for, this macro must change. */ 2718#define SAME_BINFO_TYPE_P(A, B) ((A) == (B)) 2719 2720/* Any subobject that needs a new vtable must have a vptr and must not 2721 be a non-virtual primary base (since it would then use the vtable from a 2722 derived class and never become non-primary.) */ 2723#define SET_BINFO_NEW_VTABLE_MARKED(B) \ 2724 (BINFO_NEW_VTABLE_MARKED (B) = 1, \ 2725 gcc_assert (!BINFO_PRIMARY_P (B) || BINFO_VIRTUAL_P (B)), \ 2726 gcc_assert (TYPE_VFIELD (BINFO_TYPE (B)))) 2727 2728/* Nonzero if this binfo is for a dependent base - one that should not 2729 be searched. */ 2730#define BINFO_DEPENDENT_BASE_P(NODE) BINFO_FLAG_3 (NODE) 2731 2732/* Nonzero if this binfo has lost its primary base binfo (because that 2733 is a nearly-empty virtual base that has been taken by some other 2734 base in the complete hierarchy. */ 2735#define BINFO_LOST_PRIMARY_P(NODE) BINFO_FLAG_4 (NODE) 2736 2737/* Nonzero if this BINFO is a primary base class. */ 2738#define BINFO_PRIMARY_P(NODE) BINFO_FLAG_5(NODE) 2739 2740/* A vec<tree_pair_s> of the vcall indices associated with the class 2741 NODE. The PURPOSE of each element is a FUNCTION_DECL for a virtual 2742 function. The VALUE is the index into the virtual table where the 2743 vcall offset for that function is stored, when NODE is a virtual 2744 base. */ 2745#define CLASSTYPE_VCALL_INDICES(NODE) \ 2746 (LANG_TYPE_CLASS_CHECK (NODE)->vcall_indices) 2747 2748/* The various vtables for the class NODE. The primary vtable will be 2749 first, followed by the construction vtables and VTT, if any. */ 2750#define CLASSTYPE_VTABLES(NODE) \ 2751 (LANG_TYPE_CLASS_CHECK (NODE)->vtables) 2752 2753/* The std::type_info variable representing this class, or NULL if no 2754 such variable has been created. This field is only set for the 2755 TYPE_MAIN_VARIANT of the class. */ 2756#define CLASSTYPE_TYPEINFO_VAR(NODE) \ 2757 (LANG_TYPE_CLASS_CHECK (NODE)->typeinfo_var) 2758 2759/* Accessor macros for the BINFO_VIRTUALS list. */ 2760 2761/* The number of bytes by which to adjust the `this' pointer when 2762 calling this virtual function. Subtract this value from the this 2763 pointer. Always non-NULL, might be constant zero though. */ 2764#define BV_DELTA(NODE) (TREE_PURPOSE (NODE)) 2765 2766/* If non-NULL, the vtable index at which to find the vcall offset 2767 when calling this virtual function. Add the value at that vtable 2768 index to the this pointer. */ 2769#define BV_VCALL_INDEX(NODE) (TREE_TYPE (NODE)) 2770 2771/* The function to call. */ 2772#define BV_FN(NODE) (TREE_VALUE (NODE)) 2773 2774/* Whether or not this entry is for a lost primary virtual base. */ 2775#define BV_LOST_PRIMARY(NODE) (TREE_LANG_FLAG_0 (NODE)) 2776 2777/* For FUNCTION_TYPE or METHOD_TYPE, a list of the exceptions that 2778 this type can raise. Each TREE_VALUE is a _TYPE. The TREE_VALUE 2779 will be NULL_TREE to indicate a throw specification of `()', or 2780 no exceptions allowed. For a noexcept specification, TREE_VALUE 2781 is NULL_TREE and TREE_PURPOSE is the constant-expression. For 2782 a deferred noexcept-specification, TREE_PURPOSE is a DEFERRED_NOEXCEPT 2783 (for templates) or an OVERLOAD list of functions (for implicitly 2784 declared functions). */ 2785#define TYPE_RAISES_EXCEPTIONS(NODE) \ 2786 TYPE_LANG_SLOT_1 (FUNC_OR_METHOD_CHECK (NODE)) 2787 2788/* For FUNCTION_TYPE or METHOD_TYPE, return 1 iff it is declared `throw()' 2789 or noexcept(true). */ 2790#define TYPE_NOTHROW_P(NODE) nothrow_spec_p (TYPE_RAISES_EXCEPTIONS (NODE)) 2791 2792/* For FUNCTION_TYPE or METHOD_TYPE, true if NODE is noexcept. This is the 2793 case for things declared noexcept(true) and, with -fnothrow-opt, for 2794 throw() functions. */ 2795#define TYPE_NOEXCEPT_P(NODE) type_noexcept_p (NODE) 2796 2797/* The binding level associated with the namespace. */ 2798#define NAMESPACE_LEVEL(NODE) \ 2799 (LANG_DECL_NS_CHECK (NODE)->level) 2800 2801/* Discriminator values for lang_decl. */ 2802 2803enum lang_decl_selector 2804{ 2805 lds_min, 2806 lds_fn, 2807 lds_ns, 2808 lds_parm, 2809 lds_decomp 2810}; 2811 2812/* Flags shared by all forms of DECL_LANG_SPECIFIC. 2813 2814 Some of the flags live here only to make lang_decl_min/fn smaller. Do 2815 not make this struct larger than 32 bits. */ 2816 2817struct GTY(()) lang_decl_base { 2818 ENUM_BITFIELD(lang_decl_selector) selector : 3; 2819 ENUM_BITFIELD(languages) language : 1; 2820 unsigned use_template : 2; 2821 unsigned not_really_extern : 1; /* var or fn */ 2822 unsigned initialized_in_class : 1; /* var or fn */ 2823 2824 unsigned threadprivate_or_deleted_p : 1; /* var or fn */ 2825 /* anticipated_p is no longer used for anticipated_decls (fn, type 2826 or template). It is used as DECL_OMP_PRIVATIZED_MEMBER in 2827 var. */ 2828 unsigned anticipated_p : 1; 2829 unsigned friend_or_tls : 1; /* var, fn, type or template */ 2830 unsigned unknown_bound_p : 1; /* var */ 2831 unsigned odr_used : 1; /* var or fn */ 2832 unsigned concept_p : 1; /* applies to vars and functions */ 2833 unsigned var_declared_inline_p : 1; /* var */ 2834 unsigned dependent_init_p : 1; /* var */ 2835 2836 /* The following apply to VAR, FUNCTION, TYPE, CONCEPT, & NAMESPACE 2837 decls. */ 2838 // FIXME: Purview and Attachment are not the same thing, due to 2839 // linkage-declarations. The modules code presumes they are the 2840 // same. (For context, linkage-decl semantics was a very late 2841 // change). We need a module_attachment_p flag, and this will allow 2842 // some simplification of how we handle header unit entities. 2843 // Hurrah! 2844 unsigned module_purview_p : 1; /* in module purview (not GMF) */ 2845 unsigned module_import_p : 1; /* from an import */ 2846 unsigned module_entity_p : 1; /* is in the entitity ary & 2847 hash. */ 2848 /* VAR_DECL or FUNCTION_DECL has attached decls. */ 2849 unsigned module_attached_p : 1; 2850 2851 /* 12 spare bits. */ 2852}; 2853 2854/* True for DECL codes which have template info and access. */ 2855#define LANG_DECL_HAS_MIN(NODE) \ 2856 (VAR_OR_FUNCTION_DECL_P (NODE) \ 2857 || TREE_CODE (NODE) == FIELD_DECL \ 2858 || TREE_CODE (NODE) == CONST_DECL \ 2859 || TREE_CODE (NODE) == TYPE_DECL \ 2860 || TREE_CODE (NODE) == TEMPLATE_DECL \ 2861 || TREE_CODE (NODE) == USING_DECL \ 2862 || TREE_CODE (NODE) == CONCEPT_DECL) 2863 2864/* DECL_LANG_SPECIFIC for the above codes. */ 2865 2866struct GTY(()) lang_decl_min { 2867 struct lang_decl_base base; /* 32-bits. */ 2868 2869 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is 2870 THUNK_ALIAS. 2871 In a FUNCTION_DECL for which DECL_THUNK_P does not hold, 2872 VAR_DECL, TYPE_DECL, or TEMPLATE_DECL, this is 2873 DECL_TEMPLATE_INFO. */ 2874 tree template_info; 2875 2876 /* In a DECL_THUNK_P FUNCTION_DECL, this is THUNK_VIRTUAL_OFFSET. 2877 In a lambda-capture proxy VAR_DECL, this is DECL_CAPTURED_VARIABLE. 2878 In a function-scope TREE_STATIC VAR_DECL or IMPLICIT_TYPEDEF_P TYPE_DECL, 2879 this is DECL_DISCRIMINATOR. 2880 In a DECL_LOCAL_DECL_P decl, this is the namespace decl it aliases. 2881 Otherwise, in a class-scope DECL, this is DECL_ACCESS. */ 2882 tree access; 2883}; 2884 2885/* Additional DECL_LANG_SPECIFIC information for functions. */ 2886 2887struct GTY(()) lang_decl_fn { 2888 struct lang_decl_min min; 2889 2890 /* In a overloaded operator, this is the compressed operator code. */ 2891 unsigned ovl_op_code : 6; 2892 unsigned global_ctor_p : 1; 2893 unsigned global_dtor_p : 1; 2894 2895 unsigned static_function : 1; 2896 unsigned pure_virtual : 1; 2897 unsigned defaulted_p : 1; 2898 unsigned has_in_charge_parm_p : 1; 2899 unsigned has_vtt_parm_p : 1; 2900 unsigned pending_inline_p : 1; 2901 unsigned nonconverting : 1; 2902 unsigned thunk_p : 1; 2903 2904 unsigned this_thunk_p : 1; 2905 unsigned omp_declare_reduction_p : 1; 2906 unsigned has_dependent_explicit_spec_p : 1; 2907 unsigned immediate_fn_p : 1; 2908 unsigned maybe_deleted : 1; 2909 unsigned coroutine_p : 1; 2910 unsigned implicit_constexpr : 1; 2911 2912 unsigned spare : 9; 2913 2914 /* 32-bits padding on 64-bit host. */ 2915 2916 /* For a non-thunk function decl, this is a tree list of 2917 friendly classes. For a thunk function decl, it is the 2918 thunked to function decl. */ 2919 tree befriending_classes; 2920 2921 /* For a virtual FUNCTION_DECL for which 2922 DECL_THIS_THUNK_P does not hold, this is DECL_THUNKS. Both 2923 this pointer and result pointer adjusting thunks are 2924 chained here. This pointer thunks to return pointer thunks 2925 will be chained on the return pointer thunk. 2926 For a DECL_CONSTUCTOR_P FUNCTION_DECL, this is the base from 2927 whence we inherit. Otherwise, it is the class in which a 2928 (namespace-scope) friend is defined (if any). */ 2929 tree context; 2930 2931 union lang_decl_u5 2932 { 2933 /* In a non-thunk FUNCTION_DECL, this is DECL_CLONED_FUNCTION. */ 2934 tree GTY ((tag ("0"))) cloned_function; 2935 2936 /* In a FUNCTION_DECL for which THUNK_P holds this is the 2937 THUNK_FIXED_OFFSET. */ 2938 HOST_WIDE_INT GTY ((tag ("1"))) fixed_offset; 2939 } GTY ((desc ("%1.thunk_p"))) u5; 2940 2941 union lang_decl_u3 2942 { 2943 struct cp_token_cache * GTY ((tag ("1"))) pending_inline_info; 2944 tree GTY ((tag ("0"))) saved_auto_return_type; 2945 } GTY ((desc ("%1.pending_inline_p"))) u; 2946 2947}; 2948 2949/* DECL_LANG_SPECIFIC for namespaces. */ 2950 2951struct GTY(()) lang_decl_ns { 2952 struct lang_decl_base base; /* 32 bits. */ 2953 cp_binding_level *level; 2954 2955 /* Inline children. Needs to be va_gc, because of PCH. */ 2956 vec<tree, va_gc> *inlinees; 2957 2958 /* Hash table of bound decls. It'd be nice to have this inline, but 2959 as the hash_map has a dtor, we can't then put this struct into a 2960 union (until moving to c++11). */ 2961 hash_table<named_decl_hash> *bindings; 2962}; 2963 2964/* DECL_LANG_SPECIFIC for parameters. */ 2965 2966struct GTY(()) lang_decl_parm { 2967 struct lang_decl_base base; /* 32 bits. */ 2968 int level; 2969 int index; 2970}; 2971 2972/* Additional DECL_LANG_SPECIFIC information for structured bindings. */ 2973 2974struct GTY(()) lang_decl_decomp { 2975 struct lang_decl_min min; 2976 /* The artificial underlying "e" variable of the structured binding 2977 variable. */ 2978 tree base; 2979}; 2980 2981/* DECL_LANG_SPECIFIC for all types. It would be nice to just make this a 2982 union rather than a struct containing a union as its only field, but 2983 tree.h declares it as a struct. */ 2984 2985struct GTY(()) lang_decl { 2986 union GTY((desc ("%h.base.selector"))) lang_decl_u { 2987 /* Nothing of only the base type exists. */ 2988 struct lang_decl_base GTY ((default)) base; 2989 struct lang_decl_min GTY((tag ("lds_min"))) min; 2990 struct lang_decl_fn GTY ((tag ("lds_fn"))) fn; 2991 struct lang_decl_ns GTY((tag ("lds_ns"))) ns; 2992 struct lang_decl_parm GTY((tag ("lds_parm"))) parm; 2993 struct lang_decl_decomp GTY((tag ("lds_decomp"))) decomp; 2994 } u; 2995}; 2996 2997/* Looks through a template (if present) to find what it declares. */ 2998#define STRIP_TEMPLATE(NODE) \ 2999 (TREE_CODE (NODE) == TEMPLATE_DECL ? DECL_TEMPLATE_RESULT (NODE) : NODE) 3000 3001#if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007) 3002 3003#define LANG_DECL_MIN_CHECK(NODE) __extension__ \ 3004({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 3005 if (!LANG_DECL_HAS_MIN (NODE)) \ 3006 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 3007 <->u.min; }) 3008 3009/* We want to be able to check DECL_CONSTRUCTOR_P and such on a function 3010 template, not just on a FUNCTION_DECL. So when looking for things in 3011 lang_decl_fn, look down through a TEMPLATE_DECL into its result. */ 3012#define LANG_DECL_FN_CHECK(NODE) __extension__ \ 3013({ struct lang_decl *lt = DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE)); \ 3014 if (!DECL_DECLARES_FUNCTION_P (NODE) \ 3015 || lt->u.base.selector != lds_fn) \ 3016 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 3017 <->u.fn; }) 3018 3019#define LANG_DECL_NS_CHECK(NODE) __extension__ \ 3020({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 3021 if (TREE_CODE (NODE) != NAMESPACE_DECL \ 3022 || lt->u.base.selector != lds_ns) \ 3023 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 3024 <->u.ns; }) 3025 3026#define LANG_DECL_PARM_CHECK(NODE) __extension__ \ 3027({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 3028 if (TREE_CODE (NODE) != PARM_DECL \ 3029 || lt->u.base.selector != lds_parm) \ 3030 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 3031 <->u.parm; }) 3032 3033#define LANG_DECL_DECOMP_CHECK(NODE) __extension__ \ 3034({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 3035 if (!VAR_P (NODE) \ 3036 || lt->u.base.selector != lds_decomp) \ 3037 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 3038 <->u.decomp; }) 3039 3040#else 3041 3042#define LANG_DECL_MIN_CHECK(NODE) \ 3043 (&DECL_LANG_SPECIFIC (NODE)->u.min) 3044 3045#define LANG_DECL_FN_CHECK(NODE) \ 3046 (&DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE))->u.fn) 3047 3048#define LANG_DECL_NS_CHECK(NODE) \ 3049 (&DECL_LANG_SPECIFIC (NODE)->u.ns) 3050 3051#define LANG_DECL_PARM_CHECK(NODE) \ 3052 (&DECL_LANG_SPECIFIC (NODE)->u.parm) 3053 3054#define LANG_DECL_DECOMP_CHECK(NODE) \ 3055 (&DECL_LANG_SPECIFIC (NODE)->u.decomp) 3056 3057#endif /* ENABLE_TREE_CHECKING */ 3058 3059/* For a FUNCTION_DECL or a VAR_DECL, the language linkage for the 3060 declaration. Some entities (like a member function in a local 3061 class, or a local variable) do not have linkage at all, and this 3062 macro should not be used in those cases. 3063 3064 Implementation note: A FUNCTION_DECL without DECL_LANG_SPECIFIC was 3065 created by language-independent code, and has C linkage. Most 3066 VAR_DECLs have C++ linkage, and do not have DECL_LANG_SPECIFIC, but 3067 we do create DECL_LANG_SPECIFIC for variables with non-C++ linkage. */ 3068#define DECL_LANGUAGE(NODE) \ 3069 (DECL_LANG_SPECIFIC (NODE) \ 3070 ? DECL_LANG_SPECIFIC (NODE)->u.base.language \ 3071 : (TREE_CODE (NODE) == FUNCTION_DECL \ 3072 ? lang_c : lang_cplusplus)) 3073 3074/* Set the language linkage for NODE to LANGUAGE. */ 3075#define SET_DECL_LANGUAGE(NODE, LANGUAGE) \ 3076 (DECL_LANG_SPECIFIC (NODE)->u.base.language = (LANGUAGE)) 3077 3078/* For FUNCTION_DECLs and TEMPLATE_DECLs: nonzero means that this function 3079 is a constructor. */ 3080#define DECL_CONSTRUCTOR_P(NODE) \ 3081 DECL_CXX_CONSTRUCTOR_P (STRIP_TEMPLATE (NODE)) 3082 3083/* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a complete 3084 object. */ 3085#define DECL_COMPLETE_CONSTRUCTOR_P(NODE) \ 3086 (DECL_NAME (NODE) == complete_ctor_identifier) 3087 3088/* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a base 3089 object. */ 3090#define DECL_BASE_CONSTRUCTOR_P(NODE) \ 3091 (DECL_NAME (NODE) == base_ctor_identifier) 3092 3093/* Nonzero if NODE (a FUNCTION_DECL) is a constructor, but not either the 3094 specialized in-charge constructor or the specialized not-in-charge 3095 constructor. */ 3096#define DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P(NODE) \ 3097 (DECL_NAME (NODE) == ctor_identifier) 3098 3099/* Nonzero if NODE (a FUNCTION_DECL) is a copy constructor. */ 3100#define DECL_COPY_CONSTRUCTOR_P(NODE) \ 3101 (DECL_CONSTRUCTOR_P (NODE) && copy_fn_p (NODE) > 0) 3102 3103/* Nonzero if NODE (a FUNCTION_DECL) is a move constructor. */ 3104#define DECL_MOVE_CONSTRUCTOR_P(NODE) \ 3105 (DECL_CONSTRUCTOR_P (NODE) && move_fn_p (NODE)) 3106 3107/* Nonzero if NODE (a FUNCTION_DECL or TEMPLATE_DECL) 3108 is a destructor. */ 3109#define DECL_DESTRUCTOR_P(NODE) \ 3110 DECL_CXX_DESTRUCTOR_P (STRIP_TEMPLATE (NODE)) 3111 3112/* Nonzero if NODE (a FUNCTION_DECL) is a destructor, but not the 3113 specialized in-charge constructor, in-charge deleting constructor, 3114 or the base destructor. */ 3115#define DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P(NODE) \ 3116 (DECL_NAME (NODE) == dtor_identifier) 3117 3118/* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete 3119 object. */ 3120#define DECL_COMPLETE_DESTRUCTOR_P(NODE) \ 3121 (DECL_NAME (NODE) == complete_dtor_identifier) 3122 3123/* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a base 3124 object. */ 3125#define DECL_BASE_DESTRUCTOR_P(NODE) \ 3126 (DECL_NAME (NODE) == base_dtor_identifier) 3127 3128/* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete 3129 object that deletes the object after it has been destroyed. */ 3130#define DECL_DELETING_DESTRUCTOR_P(NODE) \ 3131 (DECL_NAME (NODE) == deleting_dtor_identifier) 3132 3133/* Nonzero if either DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P or 3134 DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P is true of NODE. */ 3135#define DECL_MAYBE_IN_CHARGE_CDTOR_P(NODE) \ 3136 (DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (NODE) \ 3137 || DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (NODE)) 3138 3139/* Nonzero if NODE (a _DECL) is a cloned constructor or 3140 destructor. */ 3141#define DECL_CLONED_FUNCTION_P(NODE) \ 3142 (DECL_NAME (NODE) \ 3143 && IDENTIFIER_CDTOR_P (DECL_NAME (NODE)) \ 3144 && !DECL_MAYBE_IN_CHARGE_CDTOR_P (NODE)) 3145 3146/* If DECL_CLONED_FUNCTION_P holds, this is the function that was 3147 cloned. */ 3148#define DECL_CLONED_FUNCTION(NODE) \ 3149 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (NODE))->u.fn.u5.cloned_function) 3150 3151/* Perform an action for each clone of FN, if FN is a function with 3152 clones. This macro should be used like: 3153 3154 FOR_EACH_CLONE (clone, fn) 3155 { ... } 3156 3157 */ 3158#define FOR_EACH_CLONE(CLONE, FN) \ 3159 if (!(TREE_CODE (FN) == FUNCTION_DECL \ 3160 && DECL_MAYBE_IN_CHARGE_CDTOR_P (FN))) \ 3161 ; \ 3162 else \ 3163 for (CLONE = DECL_CHAIN (FN); \ 3164 CLONE && DECL_CLONED_FUNCTION_P (CLONE); \ 3165 CLONE = DECL_CHAIN (CLONE)) 3166 3167/* Nonzero if NODE has DECL_DISCRIMINATOR and not DECL_ACCESS. */ 3168#define DECL_DISCRIMINATOR_P(NODE) \ 3169 (((TREE_CODE (NODE) == VAR_DECL && TREE_STATIC (NODE)) \ 3170 || DECL_IMPLICIT_TYPEDEF_P (NODE)) \ 3171 && DECL_FUNCTION_SCOPE_P (NODE)) 3172 3173/* Discriminator for name mangling. */ 3174#define DECL_DISCRIMINATOR(NODE) (LANG_DECL_MIN_CHECK (NODE)->access) 3175 3176/* The index of a user-declared parameter in its function, starting at 1. 3177 All artificial parameters will have index 0. */ 3178#define DECL_PARM_INDEX(NODE) \ 3179 (LANG_DECL_PARM_CHECK (NODE)->index) 3180 3181/* The level of a user-declared parameter in its function, starting at 1. 3182 A parameter of the function will have level 1; a parameter of the first 3183 nested function declarator (i.e. t in void f (void (*p)(T t))) will have 3184 level 2. */ 3185#define DECL_PARM_LEVEL(NODE) \ 3186 (LANG_DECL_PARM_CHECK (NODE)->level) 3187 3188/* Nonzero if the VTT parm has been added to NODE. */ 3189#define DECL_HAS_VTT_PARM_P(NODE) \ 3190 (LANG_DECL_FN_CHECK (NODE)->has_vtt_parm_p) 3191 3192/* Nonzero if NODE is a user-defined conversion operator. */ 3193#define DECL_CONV_FN_P(NODE) IDENTIFIER_CONV_OP_P (DECL_NAME (NODE)) 3194 3195/* The type to which conversion operator FN converts to. */ 3196#define DECL_CONV_FN_TYPE(FN) \ 3197 TREE_TYPE ((gcc_checking_assert (DECL_CONV_FN_P (FN)), DECL_NAME (FN))) 3198 3199/* Nonzero if NODE, a static data member, was declared in its class as an 3200 array of unknown bound. */ 3201#define VAR_HAD_UNKNOWN_BOUND(NODE) \ 3202 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE)) \ 3203 ? DECL_LANG_SPECIFIC (NODE)->u.base.unknown_bound_p \ 3204 : false) 3205#define SET_VAR_HAD_UNKNOWN_BOUND(NODE) \ 3206 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))->u.base.unknown_bound_p = true) 3207 3208/* True iff decl NODE is for an overloaded operator. */ 3209#define DECL_OVERLOADED_OPERATOR_P(NODE) \ 3210 IDENTIFIER_ANY_OP_P (DECL_NAME (NODE)) 3211 3212/* Nonzero if NODE is an assignment operator (including += and such). */ 3213#define DECL_ASSIGNMENT_OPERATOR_P(NODE) \ 3214 IDENTIFIER_ASSIGN_OP_P (DECL_NAME (NODE)) 3215 3216/* NODE is a function_decl for an overloaded operator. Return its 3217 compressed (raw) operator code. Note that this is not a TREE_CODE. */ 3218#define DECL_OVERLOADED_OPERATOR_CODE_RAW(NODE) \ 3219 (LANG_DECL_FN_CHECK (NODE)->ovl_op_code) 3220 3221/* DECL is an overloaded operator. Test whether it is for TREE_CODE 3222 (a literal constant). */ 3223#define DECL_OVERLOADED_OPERATOR_IS(DECL, CODE) \ 3224 (DECL_OVERLOADED_OPERATOR_CODE_RAW (DECL) == OVL_OP_##CODE) 3225 3226/* For FUNCTION_DECLs: nonzero means that this function is a 3227 constructor or a destructor with an extra in-charge parameter to 3228 control whether or not virtual bases are constructed. */ 3229#define DECL_HAS_IN_CHARGE_PARM_P(NODE) \ 3230 (LANG_DECL_FN_CHECK (NODE)->has_in_charge_parm_p) 3231 3232/* Nonzero if DECL is a declaration of __builtin_constant_p. */ 3233#define DECL_IS_BUILTIN_CONSTANT_P(NODE) \ 3234 (TREE_CODE (NODE) == FUNCTION_DECL \ 3235 && DECL_BUILT_IN_CLASS (NODE) == BUILT_IN_NORMAL \ 3236 && DECL_FUNCTION_CODE (NODE) == BUILT_IN_CONSTANT_P) 3237 3238/* Nonzero for _DECL means that this decl appears in (or will appear 3239 in) as a member in a RECORD_TYPE or UNION_TYPE node. It is also for 3240 detecting circularity in case members are multiply defined. In the 3241 case of a VAR_DECL, it means that no definition has been seen, even 3242 if an initializer has been. */ 3243#define DECL_IN_AGGR_P(NODE) (DECL_LANG_FLAG_3 (NODE)) 3244 3245/* Nonzero for a VAR_DECL means that the variable's initialization (if 3246 any) has been processed. (In general, DECL_INITIALIZED_P is 3247 !DECL_EXTERNAL, but static data members may be initialized even if 3248 not defined.) */ 3249#define DECL_INITIALIZED_P(NODE) \ 3250 (TREE_LANG_FLAG_1 (VAR_DECL_CHECK (NODE))) 3251 3252/* Nonzero for a VAR_DECL iff an explicit initializer was provided 3253 or a non-trivial constructor is called. */ 3254#define DECL_NONTRIVIALLY_INITIALIZED_P(NODE) \ 3255 (TREE_LANG_FLAG_6 (VAR_DECL_CHECK (NODE))) 3256 3257/* Nonzero for a VAR_DECL that was initialized with a 3258 constant-expression. */ 3259#define DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P(NODE) \ 3260 (TREE_LANG_FLAG_2 (VAR_DECL_CHECK (NODE))) 3261 3262/* Nonzero if the DECL was initialized in the class definition itself, 3263 rather than outside the class. This is used for both static member 3264 VAR_DECLS, and FUNCTION_DECLS that are defined in the class. */ 3265#define DECL_INITIALIZED_IN_CLASS_P(DECL) \ 3266 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \ 3267 ->u.base.initialized_in_class) 3268 3269/* Nonzero if the DECL is used in the sense of 3.2 [basic.def.odr]. 3270 Only available for decls with DECL_LANG_SPECIFIC. */ 3271#define DECL_ODR_USED(DECL) \ 3272 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \ 3273 ->u.base.odr_used) 3274 3275/* Nonzero for FUNCTION_DECL means that this is a friend that is 3276 either not pushed into a namespace/looked up in a class (because it 3277 is a dependent type, in an uninstantiated template), or it has 3278 /only/ been subject to hidden friend injection from one or more 3279 befriending classes. Once another decl matches, the flag is 3280 cleared. There are requirements on its default parms. */ 3281#define DECL_UNIQUE_FRIEND_P(NODE) \ 3282 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (NODE)) \ 3283 ->u.base.friend_or_tls) 3284 3285/* True of a TEMPLATE_DECL that is a template class friend. Such 3286 decls are not pushed until instantiated (as they may depend on 3287 parameters of the befriending class). DECL_CHAIN is the 3288 befriending class. */ 3289#define DECL_UNINSTANTIATED_TEMPLATE_FRIEND_P(NODE) \ 3290 (DECL_LANG_FLAG_4 (TEMPLATE_DECL_CHECK (NODE))) 3291 3292/* Nonzero if the thread-local variable was declared with __thread as 3293 opposed to thread_local. */ 3294#define DECL_GNU_TLS_P(NODE) \ 3295 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE)) \ 3296 && DECL_LANG_SPECIFIC (NODE)->u.base.friend_or_tls) 3297#define SET_DECL_GNU_TLS_P(NODE) \ 3298 (retrofit_lang_decl (VAR_DECL_CHECK (NODE)), \ 3299 DECL_LANG_SPECIFIC (NODE)->u.base.friend_or_tls = true) 3300 3301/* A TREE_LIST of the types which have befriended this FUNCTION_DECL. */ 3302#define DECL_BEFRIENDING_CLASSES(NODE) \ 3303 (LANG_DECL_FN_CHECK (NODE)->befriending_classes) 3304 3305/* Nonzero for FUNCTION_DECL means that this decl is a static 3306 member function. */ 3307#define DECL_STATIC_FUNCTION_P(NODE) \ 3308 (LANG_DECL_FN_CHECK (NODE)->static_function) 3309 3310/* Nonzero for FUNCTION_DECL means that this decl is a non-static 3311 member function. */ 3312#define DECL_NONSTATIC_MEMBER_FUNCTION_P(NODE) \ 3313 (TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE) 3314 3315/* Nonzero for FUNCTION_DECL means that this decl is a member function 3316 (static or non-static). */ 3317#define DECL_FUNCTION_MEMBER_P(NODE) \ 3318 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) || DECL_STATIC_FUNCTION_P (NODE)) 3319 3320/* Nonzero for FUNCTION_DECL means that this member function 3321 has `this' as const X *const. */ 3322#define DECL_CONST_MEMFUNC_P(NODE) \ 3323 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \ 3324 && CP_TYPE_CONST_P (TREE_TYPE (TREE_VALUE \ 3325 (TYPE_ARG_TYPES (TREE_TYPE (NODE)))))) 3326 3327/* Nonzero for FUNCTION_DECL means that this member function 3328 has `this' as volatile X *const. */ 3329#define DECL_VOLATILE_MEMFUNC_P(NODE) \ 3330 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \ 3331 && CP_TYPE_VOLATILE_P (TREE_TYPE (TREE_VALUE \ 3332 (TYPE_ARG_TYPES (TREE_TYPE (NODE)))))) 3333 3334/* Nonzero for a DECL means that this member is a non-static member. */ 3335#define DECL_NONSTATIC_MEMBER_P(NODE) \ 3336 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \ 3337 || TREE_CODE (NODE) == FIELD_DECL) 3338 3339/* Nonzero for a FIELD_DECL means that this member object type 3340 is mutable. */ 3341#define DECL_MUTABLE_P(NODE) (DECL_LANG_FLAG_0 (FIELD_DECL_CHECK (NODE))) 3342 3343/* Nonzero for _DECL means that this constructor or conversion function is 3344 non-converting. */ 3345#define DECL_NONCONVERTING_P(NODE) \ 3346 (LANG_DECL_FN_CHECK (NODE)->nonconverting) 3347 3348/* Nonzero for FUNCTION_DECL means that this member function is a pure 3349 virtual function. */ 3350#define DECL_PURE_VIRTUAL_P(NODE) \ 3351 (LANG_DECL_FN_CHECK (NODE)->pure_virtual) 3352 3353/* Nonzero for FUNCTION_DECL means that this member function (either 3354 a constructor or a conversion function) has an explicit specifier 3355 with a value-dependent expression. */ 3356#define DECL_HAS_DEPENDENT_EXPLICIT_SPEC_P(NODE) \ 3357 (LANG_DECL_FN_CHECK (NODE)->has_dependent_explicit_spec_p) 3358 3359/* Nonzero for a defaulted FUNCTION_DECL for which we haven't decided yet if 3360 it's deleted; we will decide in synthesize_method. */ 3361#define DECL_MAYBE_DELETED(NODE) \ 3362 (LANG_DECL_FN_CHECK (NODE)->maybe_deleted) 3363 3364/* True (in a FUNCTION_DECL) if NODE is a virtual function that is an 3365 invalid overrider for a function from a base class. Once we have 3366 complained about an invalid overrider we avoid complaining about it 3367 again. */ 3368#define DECL_INVALID_OVERRIDER_P(NODE) \ 3369 (DECL_LANG_FLAG_4 (NODE)) 3370 3371/* True (in a FUNCTION_DECL) if NODE is a function declared with 3372 an override virt-specifier */ 3373#define DECL_OVERRIDE_P(NODE) (TREE_LANG_FLAG_0 (NODE)) 3374 3375/* The thunks associated with NODE, a FUNCTION_DECL. */ 3376#define DECL_THUNKS(NODE) \ 3377 (DECL_VIRTUAL_P (NODE) ? LANG_DECL_FN_CHECK (NODE)->context : NULL_TREE) 3378 3379/* Set DECL_THUNKS. */ 3380#define SET_DECL_THUNKS(NODE,THUNKS) \ 3381 (LANG_DECL_FN_CHECK (NODE)->context = (THUNKS)) 3382 3383/* If NODE, a FUNCTION_DECL, is a C++11 inheriting constructor, then this 3384 is the constructor it inherits from. */ 3385#define DECL_INHERITED_CTOR(NODE) \ 3386 (DECL_DECLARES_FUNCTION_P (NODE) && DECL_CONSTRUCTOR_P (NODE) \ 3387 ? LANG_DECL_FN_CHECK (NODE)->context : NULL_TREE) 3388 3389/* And this is the base that constructor comes from. */ 3390#define DECL_INHERITED_CTOR_BASE(NODE) \ 3391 (DECL_INHERITED_CTOR (NODE) \ 3392 ? DECL_CONTEXT (flag_new_inheriting_ctors \ 3393 ? strip_inheriting_ctors (NODE) \ 3394 : DECL_INHERITED_CTOR (NODE)) \ 3395 : NULL_TREE) 3396 3397/* Set the inherited base. */ 3398#define SET_DECL_INHERITED_CTOR(NODE,INH) \ 3399 (LANG_DECL_FN_CHECK (NODE)->context = (INH)) 3400 3401/* Nonzero if NODE is a thunk, rather than an ordinary function. */ 3402#define DECL_THUNK_P(NODE) \ 3403 (TREE_CODE (NODE) == FUNCTION_DECL \ 3404 && DECL_LANG_SPECIFIC (NODE) \ 3405 && LANG_DECL_FN_CHECK (NODE)->thunk_p) 3406 3407/* Set DECL_THUNK_P for node. */ 3408#define SET_DECL_THUNK_P(NODE, THIS_ADJUSTING) \ 3409 (LANG_DECL_FN_CHECK (NODE)->thunk_p = 1, \ 3410 LANG_DECL_FN_CHECK (NODE)->this_thunk_p = (THIS_ADJUSTING)) 3411 3412/* Nonzero if NODE is a this pointer adjusting thunk. */ 3413#define DECL_THIS_THUNK_P(NODE) \ 3414 (DECL_THUNK_P (NODE) && LANG_DECL_FN_CHECK (NODE)->this_thunk_p) 3415 3416/* Nonzero if NODE is a result pointer adjusting thunk. */ 3417#define DECL_RESULT_THUNK_P(NODE) \ 3418 (DECL_THUNK_P (NODE) && !LANG_DECL_FN_CHECK (NODE)->this_thunk_p) 3419 3420/* Nonzero if NODE is a FUNCTION_DECL, but not a thunk. */ 3421#define DECL_NON_THUNK_FUNCTION_P(NODE) \ 3422 (TREE_CODE (NODE) == FUNCTION_DECL && !DECL_THUNK_P (NODE)) 3423 3424/* Nonzero if NODE is `extern "C"'. */ 3425#define DECL_EXTERN_C_P(NODE) \ 3426 (DECL_LANGUAGE (NODE) == lang_c) 3427 3428/* Nonzero if NODE is an `extern "C"' function. */ 3429#define DECL_EXTERN_C_FUNCTION_P(NODE) \ 3430 (DECL_NON_THUNK_FUNCTION_P (NODE) && DECL_EXTERN_C_P (NODE)) 3431 3432/* Non-zero if this variable is declared `constinit' specifier. */ 3433#define DECL_DECLARED_CONSTINIT_P(NODE) \ 3434 (DECL_LANG_FLAG_7 (VAR_DECL_CHECK (NODE))) 3435 3436/* True if DECL is declared 'constexpr'. */ 3437#define DECL_DECLARED_CONSTEXPR_P(DECL) \ 3438 DECL_LANG_FLAG_8 (VAR_OR_FUNCTION_DECL_CHECK (STRIP_TEMPLATE (DECL))) 3439 3440/* True if FNDECL is an immediate function. */ 3441#define DECL_IMMEDIATE_FUNCTION_P(NODE) \ 3442 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (STRIP_TEMPLATE (NODE))) \ 3443 ? LANG_DECL_FN_CHECK (NODE)->immediate_fn_p \ 3444 : false) 3445#define SET_DECL_IMMEDIATE_FUNCTION_P(NODE) \ 3446 (retrofit_lang_decl (FUNCTION_DECL_CHECK (NODE)), \ 3447 LANG_DECL_FN_CHECK (NODE)->immediate_fn_p = true) 3448 3449// True if NODE was declared as 'concept'. The flag implies that the 3450// declaration is constexpr, that the declaration cannot be specialized or 3451// refined, and that the result type must be convertible to bool. 3452#define DECL_DECLARED_CONCEPT_P(NODE) \ 3453 (DECL_LANG_SPECIFIC (NODE)->u.base.concept_p) 3454 3455/* Nonzero if this DECL is the __PRETTY_FUNCTION__ variable in a 3456 template function. */ 3457#define DECL_PRETTY_FUNCTION_P(NODE) \ 3458 (DECL_NAME (NODE) \ 3459 && id_equal (DECL_NAME (NODE), "__PRETTY_FUNCTION__")) 3460 3461/* For a DECL, true if it is __func__ or similar. */ 3462#define DECL_FNAME_P(NODE) \ 3463 (VAR_P (NODE) && DECL_NAME (NODE) && DECL_ARTIFICIAL (NODE) \ 3464 && DECL_HAS_VALUE_EXPR_P (NODE) \ 3465 && (id_equal (DECL_NAME (NODE), "__PRETTY_FUNCTION__") \ 3466 || id_equal (DECL_NAME (NODE), "__FUNCTION__") \ 3467 || id_equal (DECL_NAME (NODE), "__func__"))) 3468 3469/* Nonzero if the variable was declared to be thread-local. 3470 We need a special C++ version of this test because the middle-end 3471 DECL_THREAD_LOCAL_P uses the symtab, so we can't use it for 3472 templates. */ 3473#define CP_DECL_THREAD_LOCAL_P(NODE) \ 3474 (TREE_LANG_FLAG_0 (VAR_DECL_CHECK (NODE))) 3475 3476/* The _TYPE context in which this _DECL appears. This field holds the 3477 class where a virtual function instance is actually defined. */ 3478#define DECL_CLASS_CONTEXT(NODE) \ 3479 (DECL_CLASS_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : NULL_TREE) 3480 3481/* For a non-member friend function, the class (if any) in which this 3482 friend was defined. For example, given: 3483 3484 struct S { friend void f () { ... } }; 3485 3486 the DECL_FRIEND_CONTEXT for `f' will be `S'. */ 3487#define DECL_FRIEND_CONTEXT(NODE) \ 3488 ((DECL_DECLARES_FUNCTION_P (NODE) && !DECL_VIRTUAL_P (NODE) \ 3489 && !DECL_CONSTRUCTOR_P (NODE)) \ 3490 ? LANG_DECL_FN_CHECK (NODE)->context \ 3491 : NULL_TREE) 3492 3493/* Set the DECL_FRIEND_CONTEXT for NODE to CONTEXT. */ 3494#define SET_DECL_FRIEND_CONTEXT(NODE, CONTEXT) \ 3495 (LANG_DECL_FN_CHECK (NODE)->context = (CONTEXT)) 3496 3497#define CP_DECL_CONTEXT(NODE) \ 3498 (!DECL_FILE_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : global_namespace) 3499#define CP_TYPE_CONTEXT(NODE) \ 3500 (!TYPE_FILE_SCOPE_P (NODE) ? TYPE_CONTEXT (NODE) : global_namespace) 3501#define FROB_CONTEXT(NODE) \ 3502 ((NODE) == global_namespace ? DECL_CONTEXT (NODE) : (NODE)) 3503 3504/* 1 iff NODE has namespace scope, including the global namespace. */ 3505#define DECL_NAMESPACE_SCOPE_P(NODE) \ 3506 (!DECL_TEMPLATE_PARM_P (NODE) \ 3507 && TREE_CODE (CP_DECL_CONTEXT (NODE)) == NAMESPACE_DECL) 3508 3509#define TYPE_NAMESPACE_SCOPE_P(NODE) \ 3510 (TREE_CODE (CP_TYPE_CONTEXT (NODE)) == NAMESPACE_DECL) 3511 3512#define NAMESPACE_SCOPE_P(NODE) \ 3513 ((DECL_P (NODE) && DECL_NAMESPACE_SCOPE_P (NODE)) \ 3514 || (TYPE_P (NODE) && TYPE_NAMESPACE_SCOPE_P (NODE))) 3515 3516/* 1 iff NODE is a class member. */ 3517#define DECL_CLASS_SCOPE_P(NODE) \ 3518 (DECL_CONTEXT (NODE) && TYPE_P (DECL_CONTEXT (NODE))) 3519 3520#define TYPE_CLASS_SCOPE_P(NODE) \ 3521 (TYPE_CONTEXT (NODE) && TYPE_P (TYPE_CONTEXT (NODE))) 3522 3523/* 1 iff NODE is function-local. */ 3524#define DECL_FUNCTION_SCOPE_P(NODE) \ 3525 (DECL_CONTEXT (NODE) \ 3526 && TREE_CODE (DECL_CONTEXT (NODE)) == FUNCTION_DECL) 3527 3528#define TYPE_FUNCTION_SCOPE_P(NODE) \ 3529 (TYPE_CONTEXT (NODE) && TREE_CODE (TYPE_CONTEXT (NODE)) == FUNCTION_DECL) 3530 3531/* 1 iff VAR_DECL node NODE is a type-info decl. This flag is set for 3532 both the primary typeinfo object and the associated NTBS name. */ 3533#define DECL_TINFO_P(NODE) \ 3534 TREE_LANG_FLAG_4 (TREE_CHECK2 (NODE,VAR_DECL,TYPE_DECL)) 3535 3536/* 1 iff VAR_DECL node NODE is virtual table or VTT. We forward to 3537 DECL_VIRTUAL_P from the common code, as that has the semantics we 3538 need. But we want a more descriptive name. */ 3539#define DECL_VTABLE_OR_VTT_P(NODE) DECL_VIRTUAL_P (VAR_DECL_CHECK (NODE)) 3540 3541/* 1 iff FUNCTION_TYPE or METHOD_TYPE has a ref-qualifier (either & or &&). */ 3542#define FUNCTION_REF_QUALIFIED(NODE) \ 3543 TREE_LANG_FLAG_4 (FUNC_OR_METHOD_CHECK (NODE)) 3544 3545/* 1 iff FUNCTION_TYPE or METHOD_TYPE has &&-ref-qualifier. */ 3546#define FUNCTION_RVALUE_QUALIFIED(NODE) \ 3547 TREE_LANG_FLAG_5 (FUNC_OR_METHOD_CHECK (NODE)) 3548 3549/* 1 iff NODE is function-local, but for types. */ 3550#define LOCAL_CLASS_P(NODE) \ 3551 (decl_function_context (TYPE_MAIN_DECL (NODE)) != NULL_TREE) 3552 3553/* The nesting depth of namespace, class or function. Makes is_ancestor much 3554 simpler. Only 8 bits available. */ 3555#define SCOPE_DEPTH(NODE) \ 3556 (NAMESPACE_DECL_CHECK (NODE)->base.u.bits.address_space) 3557 3558/* Whether the namepace is an inline namespace. */ 3559#define DECL_NAMESPACE_INLINE_P(NODE) \ 3560 TREE_LANG_FLAG_0 (NAMESPACE_DECL_CHECK (NODE)) 3561 3562/* In a NAMESPACE_DECL, a vector of inline namespaces. */ 3563#define DECL_NAMESPACE_INLINEES(NODE) \ 3564 (LANG_DECL_NS_CHECK (NODE)->inlinees) 3565 3566/* Pointer to hash_map from IDENTIFIERS to DECLS */ 3567#define DECL_NAMESPACE_BINDINGS(NODE) \ 3568 (LANG_DECL_NS_CHECK (NODE)->bindings) 3569 3570/* In a NAMESPACE_DECL, points to the original namespace if this is 3571 a namespace alias. */ 3572#define DECL_NAMESPACE_ALIAS(NODE) \ 3573 DECL_ABSTRACT_ORIGIN (NAMESPACE_DECL_CHECK (NODE)) 3574#define ORIGINAL_NAMESPACE(NODE) \ 3575 (DECL_NAMESPACE_ALIAS (NODE) ? DECL_NAMESPACE_ALIAS (NODE) : (NODE)) 3576 3577/* Nonzero if NODE is the std namespace. */ 3578#define DECL_NAMESPACE_STD_P(NODE) \ 3579 ((NODE) == std_node) 3580 3581/* In a TREE_LIST in an attribute list, indicates that the attribute 3582 must be applied at instantiation time. */ 3583#define ATTR_IS_DEPENDENT(NODE) TREE_LANG_FLAG_0 (TREE_LIST_CHECK (NODE)) 3584 3585/* In a TREE_LIST in the argument of attribute abi_tag, indicates that the tag 3586 was inherited from a template parameter, not explicitly indicated. */ 3587#define ABI_TAG_IMPLICIT(NODE) TREE_LANG_FLAG_0 (TREE_LIST_CHECK (NODE)) 3588 3589/* In a TREE_LIST for a parameter-declaration-list, indicates that all the 3590 parameters in the list have declarators enclosed in (). */ 3591#define PARENTHESIZED_LIST_P(NODE) TREE_LANG_FLAG_0 (TREE_LIST_CHECK (NODE)) 3592 3593/* Non zero if this is a using decl for a dependent scope. */ 3594#define DECL_DEPENDENT_P(NODE) DECL_LANG_FLAG_0 (USING_DECL_CHECK (NODE)) 3595 3596/* The scope named in a using decl. */ 3597#define USING_DECL_SCOPE(NODE) DECL_RESULT_FLD (USING_DECL_CHECK (NODE)) 3598 3599/* The decls named by a using decl. */ 3600#define USING_DECL_DECLS(NODE) DECL_INITIAL (USING_DECL_CHECK (NODE)) 3601 3602/* Non zero if the using decl refers to a dependent type. */ 3603#define USING_DECL_TYPENAME_P(NODE) DECL_LANG_FLAG_1 (USING_DECL_CHECK (NODE)) 3604 3605/* True if member using decl NODE refers to a non-inherited NODE. */ 3606#define USING_DECL_UNRELATED_P(NODE) DECL_LANG_FLAG_2 (USING_DECL_CHECK (NODE)) 3607 3608/* True iff the CONST_DECL is a class-scope clone from C++20 using enum, 3609 created by handle_using_decl. */ 3610#define CONST_DECL_USING_P(NODE) \ 3611 (TREE_CODE (NODE) == CONST_DECL \ 3612 && TREE_TYPE (NODE) \ 3613 && TREE_CODE (TREE_TYPE (NODE)) == ENUMERAL_TYPE \ 3614 && DECL_CONTEXT (NODE) != TREE_TYPE (NODE)) 3615 3616/* In a FUNCTION_DECL, this is nonzero if this function was defined in 3617 the class definition. We have saved away the text of the function, 3618 but have not yet processed it. */ 3619#define DECL_PENDING_INLINE_P(NODE) \ 3620 (LANG_DECL_FN_CHECK (NODE)->pending_inline_p) 3621 3622/* If DECL_PENDING_INLINE_P holds, this is the saved text of the 3623 function. */ 3624#define DECL_PENDING_INLINE_INFO(NODE) \ 3625 (LANG_DECL_FN_CHECK (NODE)->u.pending_inline_info) 3626 3627/* Nonzero for TYPE_DECL means that it was written 'using name = type'. */ 3628#define TYPE_DECL_ALIAS_P(NODE) \ 3629 DECL_LANG_FLAG_6 (TYPE_DECL_CHECK (NODE)) 3630 3631/* Nonzero for TEMPLATE_DECL means that it is a 'complex' alias template. */ 3632#define TEMPLATE_DECL_COMPLEX_ALIAS_P(NODE) \ 3633 DECL_LANG_FLAG_2 (TEMPLATE_DECL_CHECK (NODE)) 3634 3635/* Nonzero for a type which is an alias for another type; i.e, a type 3636 which declaration was written 'using name-of-type = 3637 another-type'. */ 3638#define TYPE_ALIAS_P(NODE) \ 3639 (TYPE_P (NODE) \ 3640 && TYPE_NAME (NODE) \ 3641 && TREE_CODE (TYPE_NAME (NODE)) == TYPE_DECL \ 3642 && TYPE_DECL_ALIAS_P (TYPE_NAME (NODE))) 3643 3644/* If non-NULL for a VAR_DECL, FUNCTION_DECL, TYPE_DECL, TEMPLATE_DECL, 3645 or CONCEPT_DECL, the entity is either a template specialization (if 3646 DECL_USE_TEMPLATE is nonzero) or the abstract instance of the 3647 template itself. 3648 3649 In either case, DECL_TEMPLATE_INFO is a TEMPLATE_INFO, whose 3650 TI_TEMPLATE is the TEMPLATE_DECL of which this entity is a 3651 specialization or abstract instance. The TI_ARGS is the 3652 template arguments used to specialize the template. 3653 3654 Consider: 3655 3656 template <typename T> struct S { friend void f(T) {} }; 3657 3658 In this case, S<int>::f is, from the point of view of the compiler, 3659 an instantiation of a template -- but, from the point of view of 3660 the language, each instantiation of S results in a wholly unrelated 3661 global function f. In this case, DECL_TEMPLATE_INFO for S<int>::f 3662 will be non-NULL, but DECL_USE_TEMPLATE will be zero. 3663 3664 In a friend declaration, TI_TEMPLATE can be an overload set, or 3665 identifier. */ 3666#define DECL_TEMPLATE_INFO(NODE) \ 3667 (DECL_LANG_SPECIFIC (TEMPLATE_INFO_DECL_CHECK (NODE)) \ 3668 ->u.min.template_info) 3669 3670/* For a lambda capture proxy, its captured variable. */ 3671#define DECL_CAPTURED_VARIABLE(NODE) \ 3672 (LANG_DECL_MIN_CHECK (NODE)->access) 3673 3674/* For a VAR_DECL, indicates that the variable is actually a 3675 non-static data member of anonymous union that has been promoted to 3676 variable status. */ 3677#define DECL_ANON_UNION_VAR_P(NODE) \ 3678 (DECL_LANG_FLAG_4 (VAR_DECL_CHECK (NODE))) 3679 3680/* Template information for a RECORD_TYPE or UNION_TYPE. */ 3681#define CLASSTYPE_TEMPLATE_INFO(NODE) \ 3682 (TYPE_LANG_SLOT_1 (RECORD_OR_UNION_CHECK (NODE))) 3683 3684/* Template information for a template template parameter. */ 3685#define TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO(NODE) \ 3686 (TYPE_LANG_SLOT_1 (BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK (NODE))) 3687 3688/* Template information for an ENUMERAL_, RECORD_, UNION_TYPE, or 3689 BOUND_TEMPLATE_TEMPLATE_PARM type. This ignores any alias 3690 templateness of NODE. It'd be nice if this could unconditionally 3691 access the slot, rather than return NULL if given a 3692 non-templatable type. */ 3693#define TYPE_TEMPLATE_INFO(NODE) \ 3694 (TREE_CODE (NODE) == ENUMERAL_TYPE \ 3695 || TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM \ 3696 || RECORD_OR_UNION_TYPE_P (NODE) \ 3697 ? TYPE_LANG_SLOT_1 (NODE) : NULL_TREE) 3698 3699/* Template information (if any) for an alias type. */ 3700#define TYPE_ALIAS_TEMPLATE_INFO(NODE) \ 3701 (DECL_LANG_SPECIFIC (TYPE_NAME (NODE)) \ 3702 ? DECL_TEMPLATE_INFO (TYPE_NAME (NODE)) \ 3703 : NULL_TREE) 3704 3705/* If NODE is a type alias, this accessor returns the template info 3706 for the alias template (if any). Otherwise behave as 3707 TYPE_TEMPLATE_INFO. */ 3708#define TYPE_TEMPLATE_INFO_MAYBE_ALIAS(NODE) \ 3709 (typedef_variant_p (NODE) \ 3710 ? TYPE_ALIAS_TEMPLATE_INFO (NODE) \ 3711 : TYPE_TEMPLATE_INFO (NODE)) 3712 3713/* Set the template information for a non-alias n ENUMERAL_, RECORD_, 3714 or UNION_TYPE to VAL. ALIAS's are dealt with separately. */ 3715#define SET_TYPE_TEMPLATE_INFO(NODE, VAL) \ 3716 (TREE_CODE (NODE) == ENUMERAL_TYPE \ 3717 || (CLASS_TYPE_P (NODE) && !TYPE_ALIAS_P (NODE)) \ 3718 ? (TYPE_LANG_SLOT_1 (NODE) = (VAL)) \ 3719 : (DECL_TEMPLATE_INFO (TYPE_NAME (NODE)) = (VAL))) \ 3720 3721#define TI_TEMPLATE(NODE) \ 3722 ((struct tree_template_info*)TEMPLATE_INFO_CHECK (NODE))->tmpl 3723#define TI_ARGS(NODE) \ 3724 ((struct tree_template_info*)TEMPLATE_INFO_CHECK (NODE))->args 3725#define TI_PENDING_TEMPLATE_FLAG(NODE) \ 3726 TREE_LANG_FLAG_1 (TEMPLATE_INFO_CHECK (NODE)) 3727/* For a given TREE_VEC containing a template argument list, 3728 this property contains the number of arguments that are not 3729 defaulted. */ 3730#define NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) \ 3731 TREE_CHAIN (TREE_VEC_CHECK (NODE)) 3732 3733/* Below are the setter and getter of the NON_DEFAULT_TEMPLATE_ARGS_COUNT 3734 property. */ 3735#define SET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE, INT_VALUE) \ 3736 NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) = build_int_cst (NULL_TREE, INT_VALUE) 3737#if CHECKING_P 3738#define GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) \ 3739 int_cst_value (NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE)) 3740#else 3741#define GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) \ 3742 NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE) \ 3743 ? int_cst_value (NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE)) \ 3744 : TREE_VEC_LENGTH (INNERMOST_TEMPLATE_ARGS (NODE)) 3745#endif 3746 3747/* The list of access checks that were deferred during parsing 3748 which need to be performed at template instantiation time. 3749 3750 FIXME this should be associated with the TEMPLATE_DECL, not the 3751 TEMPLATE_INFO. */ 3752#define TI_DEFERRED_ACCESS_CHECKS(NODE) \ 3753 ((struct tree_template_info*)TEMPLATE_INFO_CHECK \ 3754 (NODE))->deferred_access_checks 3755 3756/* We use TREE_VECs to hold template arguments. If there is only one 3757 level of template arguments, then the TREE_VEC contains the 3758 arguments directly. If there is more than one level of template 3759 arguments, then each entry in the TREE_VEC is itself a TREE_VEC, 3760 containing the template arguments for a single level. The first 3761 entry in the outer TREE_VEC is the outermost level of template 3762 parameters; the last is the innermost. 3763 3764 It is incorrect to ever form a template argument vector containing 3765 only one level of arguments, but which is a TREE_VEC containing as 3766 its only entry the TREE_VEC for that level. 3767 3768 For each TREE_VEC containing the template arguments for a single 3769 level, it's possible to get or set the number of non defaulted 3770 template arguments by using the accessor macros 3771 GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT or 3772 SET_NON_DEFAULT_TEMPLATE_ARGS_COUNT. */ 3773 3774/* Nonzero if the template arguments is actually a vector of vectors, 3775 rather than just a vector. */ 3776#define TMPL_ARGS_HAVE_MULTIPLE_LEVELS(NODE) \ 3777 (NODE && TREE_VEC_LENGTH (NODE) && TREE_VEC_ELT (NODE, 0) \ 3778 && TREE_CODE (TREE_VEC_ELT (NODE, 0)) == TREE_VEC) 3779 3780/* The depth of a template argument vector. When called directly by 3781 the parser, we use a TREE_LIST rather than a TREE_VEC to represent 3782 template arguments. In that case, there is only one level of template 3783 arguments. We may even see NULL_TREE if there are 0 levels of 3784 template arguments, as in cp_parser_requires_expression. */ 3785#define TMPL_ARGS_DEPTH(NODE) \ 3786 ((NODE) == NULL_TREE ? 0 \ 3787 : TMPL_ARGS_HAVE_MULTIPLE_LEVELS (NODE) ? TREE_VEC_LENGTH (NODE) \ 3788 : 1) 3789 3790/* The LEVELth level of the template ARGS. The outermost level of 3791 args is level 1, not level 0. */ 3792#define TMPL_ARGS_LEVEL(ARGS, LEVEL) \ 3793 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (ARGS) \ 3794 ? TREE_VEC_ELT (ARGS, (LEVEL) - 1) : (ARGS)) 3795 3796/* Set the LEVELth level of the template ARGS to VAL. This macro does 3797 not work with single-level argument vectors. */ 3798#define SET_TMPL_ARGS_LEVEL(ARGS, LEVEL, VAL) \ 3799 (TREE_VEC_ELT (ARGS, (LEVEL) - 1) = (VAL)) 3800 3801/* Accesses the IDXth parameter in the LEVELth level of the ARGS. */ 3802#define TMPL_ARG(ARGS, LEVEL, IDX) \ 3803 (TREE_VEC_ELT (TMPL_ARGS_LEVEL (ARGS, LEVEL), IDX)) 3804 3805/* Given a single level of template arguments in NODE, return the 3806 number of arguments. */ 3807#define NUM_TMPL_ARGS(NODE) \ 3808 (TREE_VEC_LENGTH (NODE)) 3809 3810/* Returns the innermost level of template arguments in ARGS. */ 3811#define INNERMOST_TEMPLATE_ARGS(NODE) \ 3812 (get_innermost_template_args ((NODE), 1)) 3813 3814/* The number of levels of template parameters given by NODE. */ 3815#define TMPL_PARMS_DEPTH(NODE) \ 3816 ((HOST_WIDE_INT) TREE_INT_CST_LOW (TREE_PURPOSE (NODE))) 3817 3818/* The TEMPLATE_DECL instantiated or specialized by NODE. This 3819 TEMPLATE_DECL will be the immediate parent, not the most general 3820 template. For example, in: 3821 3822 template <class T> struct S { template <class U> void f(U); } 3823 3824 the FUNCTION_DECL for S<int>::f<double> will have, as its 3825 DECL_TI_TEMPLATE, `template <class U> S<int>::f<U>'. 3826 3827 As a special case, for a member friend template of a template 3828 class, this value will not be a TEMPLATE_DECL, but rather an 3829 IDENTIFIER_NODE or OVERLOAD indicating the name of the template and 3830 any explicit template arguments provided. For example, in: 3831 3832 template <class T> struct S { friend void f<int>(int, double); } 3833 3834 the DECL_TI_TEMPLATE will be an IDENTIFIER_NODE for `f' and the 3835 DECL_TI_ARGS will be {int}. 3836 3837 For a FIELD_DECL with a non-static data member initializer, this value 3838 is the FIELD_DECL it was instantiated from. */ 3839#define DECL_TI_TEMPLATE(NODE) TI_TEMPLATE (DECL_TEMPLATE_INFO (NODE)) 3840 3841/* The template arguments used to obtain this decl from the most 3842 general form of DECL_TI_TEMPLATE. For the example given for 3843 DECL_TI_TEMPLATE, the DECL_TI_ARGS will be {int, double}. These 3844 are always the full set of arguments required to instantiate this 3845 declaration from the most general template specialized here. */ 3846#define DECL_TI_ARGS(NODE) TI_ARGS (DECL_TEMPLATE_INFO (NODE)) 3847 3848/* The TEMPLATE_DECL associated with NODE, a class type. Even if NODE 3849 will be generated from a partial specialization, the TEMPLATE_DECL 3850 referred to here will be the original template. For example, 3851 given: 3852 3853 template <typename T> struct S {}; 3854 template <typename T> struct S<T*> {}; 3855 3856 the CLASSTYPE_TI_TEMPLATE for S<int*> will be S, not the S<T*>. 3857 3858 For a member class template, CLASSTYPE_TI_TEMPLATE always refers to the 3859 partial instantiation rather than the primary template. CLASSTYPE_TI_ARGS 3860 are for the primary template if the partial instantiation isn't 3861 specialized, or for the explicit specialization if it is, e.g. 3862 3863 template <class T> class C { template <class U> class D; } 3864 template <> template <class U> class C<int>::D; */ 3865#define CLASSTYPE_TI_TEMPLATE(NODE) TI_TEMPLATE (CLASSTYPE_TEMPLATE_INFO (NODE)) 3866#define CLASSTYPE_TI_ARGS(NODE) TI_ARGS (CLASSTYPE_TEMPLATE_INFO (NODE)) 3867 3868/* For a template instantiation TYPE, returns the TYPE corresponding 3869 to the primary template. Otherwise returns TYPE itself. */ 3870#define CLASSTYPE_PRIMARY_TEMPLATE_TYPE(TYPE) \ 3871 ((CLASSTYPE_USE_TEMPLATE ((TYPE)) \ 3872 && !CLASSTYPE_TEMPLATE_SPECIALIZATION ((TYPE))) \ 3873 ? TREE_TYPE (DECL_TEMPLATE_RESULT (DECL_PRIMARY_TEMPLATE \ 3874 (CLASSTYPE_TI_TEMPLATE ((TYPE))))) \ 3875 : (TYPE)) 3876 3877/* Like CLASS_TI_TEMPLATE, but also works for ENUMERAL_TYPEs. */ 3878#define TYPE_TI_TEMPLATE(NODE) \ 3879 (TI_TEMPLATE (TYPE_TEMPLATE_INFO (NODE))) 3880 3881/* Like DECL_TI_ARGS, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */ 3882#define TYPE_TI_ARGS(NODE) \ 3883 (TI_ARGS (TYPE_TEMPLATE_INFO (NODE))) 3884 3885#define INNERMOST_TEMPLATE_PARMS(NODE) TREE_VALUE (NODE) 3886 3887/* Nonzero if NODE (a TEMPLATE_DECL) is a member template, in the 3888 sense of [temp.mem]. */ 3889#define DECL_MEMBER_TEMPLATE_P(NODE) \ 3890 (DECL_LANG_FLAG_1 (TEMPLATE_DECL_CHECK (NODE))) 3891 3892/* Nonzero if the NODE corresponds to the template parameters for a 3893 member template, whose inline definition is being processed after 3894 the class definition is complete. */ 3895#define TEMPLATE_PARMS_FOR_INLINE(NODE) TREE_LANG_FLAG_1 (NODE) 3896 3897/* Determine if a declaration (PARM_DECL or FIELD_DECL) is a pack. */ 3898#define DECL_PACK_P(NODE) \ 3899 (DECL_P (NODE) && PACK_EXPANSION_P (TREE_TYPE (NODE))) 3900 3901/* Determines if NODE is an expansion of one or more parameter packs, 3902 e.g., a TYPE_PACK_EXPANSION or EXPR_PACK_EXPANSION. */ 3903#define PACK_EXPANSION_P(NODE) \ 3904 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION \ 3905 || TREE_CODE (NODE) == EXPR_PACK_EXPANSION) 3906 3907/* Extracts the type or expression pattern from a TYPE_PACK_EXPANSION or 3908 EXPR_PACK_EXPANSION. */ 3909#define PACK_EXPANSION_PATTERN(NODE) \ 3910 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION ? TREE_TYPE (NODE) \ 3911 : TREE_OPERAND (NODE, 0)) 3912 3913/* Sets the type or expression pattern for a TYPE_PACK_EXPANSION or 3914 EXPR_PACK_EXPANSION. */ 3915#define SET_PACK_EXPANSION_PATTERN(NODE,VALUE) \ 3916 if (TREE_CODE (NODE) == TYPE_PACK_EXPANSION) \ 3917 TREE_TYPE (NODE) = VALUE; \ 3918 else \ 3919 TREE_OPERAND (NODE, 0) = VALUE 3920 3921/* The list of parameter packs used in the PACK_EXPANSION_* node. The 3922 TREE_VALUE of each TREE_LIST contains the parameter packs. */ 3923#define PACK_EXPANSION_PARAMETER_PACKS(NODE) \ 3924 *(TREE_CODE (NODE) == EXPR_PACK_EXPANSION \ 3925 ? &TREE_OPERAND (NODE, 1) \ 3926 : &TYPE_MIN_VALUE_RAW (TYPE_PACK_EXPANSION_CHECK (NODE))) 3927 3928/* Any additional template args to be applied when substituting into 3929 the pattern, set by tsubst_pack_expansion for partial instantiations. 3930 If this is a TREE_LIST, the TREE_VALUE of the first element is the 3931 usual template argument TREE_VEC, and the TREE_PURPOSE of later elements 3932 are enclosing functions that provided function parameter packs we'll need 3933 to map appropriately. */ 3934#define PACK_EXPANSION_EXTRA_ARGS(NODE) \ 3935 *(TREE_CODE (NODE) == TYPE_PACK_EXPANSION \ 3936 ? &TYPE_MAX_VALUE_RAW (NODE) \ 3937 : &TREE_OPERAND ((NODE), 2)) 3938 3939/* True iff this pack expansion is within a function context. */ 3940#define PACK_EXPANSION_LOCAL_P(NODE) TREE_LANG_FLAG_0 (NODE) 3941 3942/* True iff this pack expansion is for sizeof.... */ 3943#define PACK_EXPANSION_SIZEOF_P(NODE) TREE_LANG_FLAG_1 (NODE) 3944 3945/* True iff this pack expansion is for auto... in lambda init-capture. */ 3946#define PACK_EXPANSION_AUTO_P(NODE) TREE_LANG_FLAG_2 (NODE) 3947 3948/* True if we must use PACK_EXPANSION_EXTRA_ARGS and avoid partial 3949 instantiation of this pack expansion. */ 3950#define PACK_EXPANSION_FORCE_EXTRA_ARGS_P(NODE) TREE_LANG_FLAG_3 (NODE) 3951 3952/* True iff the wildcard can match a template parameter pack. */ 3953#define WILDCARD_PACK_P(NODE) TREE_LANG_FLAG_0 (NODE) 3954 3955/* Determine if this is an argument pack. */ 3956#define ARGUMENT_PACK_P(NODE) \ 3957 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK \ 3958 || TREE_CODE (NODE) == NONTYPE_ARGUMENT_PACK) 3959 3960/* The arguments stored in an argument pack. Arguments are stored in a 3961 TREE_VEC, which may have length zero. */ 3962#define ARGUMENT_PACK_ARGS(NODE) \ 3963 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK? TREE_TYPE (NODE) \ 3964 : TREE_OPERAND (NODE, 0)) 3965 3966/* Set the arguments stored in an argument pack. VALUE must be a 3967 TREE_VEC. */ 3968#define SET_ARGUMENT_PACK_ARGS(NODE,VALUE) \ 3969 if (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK) \ 3970 TREE_TYPE (NODE) = VALUE; \ 3971 else \ 3972 TREE_OPERAND (NODE, 0) = VALUE 3973 3974/* Whether the argument pack is "incomplete", meaning that more 3975 arguments can still be deduced. Incomplete argument packs are only 3976 used when the user has provided an explicit template argument list 3977 for a variadic function template. Some of the explicit template 3978 arguments will be placed into the beginning of the argument pack, 3979 but additional arguments might still be deduced. */ 3980#define ARGUMENT_PACK_INCOMPLETE_P(NODE) \ 3981 TREE_ADDRESSABLE (ARGUMENT_PACK_ARGS (NODE)) 3982 3983/* When ARGUMENT_PACK_INCOMPLETE_P, stores the explicit template 3984 arguments used to fill this pack. */ 3985#define ARGUMENT_PACK_EXPLICIT_ARGS(NODE) \ 3986 TREE_TYPE (ARGUMENT_PACK_ARGS (NODE)) 3987 3988/* In an ARGUMENT_PACK_SELECT, the argument pack from which an 3989 argument will be selected. */ 3990#define ARGUMENT_PACK_SELECT_FROM_PACK(NODE) \ 3991 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->argument_pack) 3992 3993/* In an ARGUMENT_PACK_SELECT, the index of the argument we want to 3994 select. */ 3995#define ARGUMENT_PACK_SELECT_INDEX(NODE) \ 3996 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->index) 3997 3998#define FOLD_EXPR_CHECK(NODE) \ 3999 TREE_CHECK4 (NODE, UNARY_LEFT_FOLD_EXPR, UNARY_RIGHT_FOLD_EXPR, \ 4000 BINARY_LEFT_FOLD_EXPR, BINARY_RIGHT_FOLD_EXPR) 4001 4002#define BINARY_FOLD_EXPR_CHECK(NODE) \ 4003 TREE_CHECK2 (NODE, BINARY_LEFT_FOLD_EXPR, BINARY_RIGHT_FOLD_EXPR) 4004 4005/* True if NODE is UNARY_FOLD_EXPR or a BINARY_FOLD_EXPR */ 4006#define FOLD_EXPR_P(NODE) \ 4007 (TREE_CODE (NODE) == UNARY_LEFT_FOLD_EXPR \ 4008 || TREE_CODE (NODE) == UNARY_RIGHT_FOLD_EXPR \ 4009 || TREE_CODE (NODE) == BINARY_LEFT_FOLD_EXPR \ 4010 || TREE_CODE (NODE) == BINARY_RIGHT_FOLD_EXPR) 4011 4012/* True when NODE is a fold over a compound assignment operator. */ 4013#define FOLD_EXPR_MODIFY_P(NODE) \ 4014 TREE_LANG_FLAG_0 (FOLD_EXPR_CHECK (NODE)) 4015 4016/* An INTEGER_CST containing the tree code of the folded operator. */ 4017#define FOLD_EXPR_OP_RAW(NODE) \ 4018 TREE_OPERAND (FOLD_EXPR_CHECK (NODE), 0) 4019 4020/* The tree code of the folded operator. */ 4021#define FOLD_EXPR_OP(NODE) \ 4022 ((enum tree_code) TREE_INT_CST_LOW (FOLD_EXPR_OP_RAW (NODE))) 4023 4024/* The expression containing an unexpanded parameter pack. */ 4025#define FOLD_EXPR_PACK(NODE) \ 4026 TREE_OPERAND (FOLD_EXPR_CHECK (NODE), 1) 4027 4028/* In a binary fold expression, the argument with no unexpanded 4029 parameter packs. */ 4030#define FOLD_EXPR_INIT(NODE) \ 4031 TREE_OPERAND (BINARY_FOLD_EXPR_CHECK (NODE), 2) 4032 4033/* In a FUNCTION_DECL, the saved auto-return pattern. */ 4034#define DECL_SAVED_AUTO_RETURN_TYPE(NODE) \ 4035 (LANG_DECL_FN_CHECK (FUNCTION_DECL_CHECK (NODE)) \ 4036 ->u.saved_auto_return_type) 4037 4038/* True if NODE is an implicit INDIRECT_REF from convert_from_reference. */ 4039#define REFERENCE_REF_P(NODE) \ 4040 (INDIRECT_REF_P (NODE) \ 4041 && TREE_TYPE (TREE_OPERAND (NODE, 0)) \ 4042 && TYPE_REF_P (TREE_TYPE (TREE_OPERAND ((NODE), 0)))) 4043 4044/* True iff this represents an lvalue being treated as an rvalue during return 4045 or throw as per [class.copy.elision]. */ 4046#define IMPLICIT_RVALUE_P(NODE) \ 4047 TREE_LANG_FLAG_3 (TREE_CHECK2 ((NODE), NON_LVALUE_EXPR, STATIC_CAST_EXPR)) 4048 4049#define NEW_EXPR_USE_GLOBAL(NODE) \ 4050 TREE_LANG_FLAG_0 (NEW_EXPR_CHECK (NODE)) 4051#define DELETE_EXPR_USE_GLOBAL(NODE) \ 4052 TREE_LANG_FLAG_0 (DELETE_EXPR_CHECK (NODE)) 4053#define DELETE_EXPR_USE_VEC(NODE) \ 4054 TREE_LANG_FLAG_1 (DELETE_EXPR_CHECK (NODE)) 4055 4056#define CALL_OR_AGGR_INIT_CHECK(NODE) \ 4057 TREE_CHECK2 ((NODE), CALL_EXPR, AGGR_INIT_EXPR) 4058 4059/* In a CALL_EXPR appearing in a template, true if Koenig lookup 4060 should be performed at instantiation time. */ 4061#define KOENIG_LOOKUP_P(NODE) TREE_LANG_FLAG_0 (CALL_EXPR_CHECK (NODE)) 4062 4063/* True if the arguments to NODE should be evaluated in left-to-right 4064 order regardless of PUSH_ARGS_REVERSED. */ 4065#define CALL_EXPR_ORDERED_ARGS(NODE) \ 4066 TREE_LANG_FLAG_3 (CALL_OR_AGGR_INIT_CHECK (NODE)) 4067 4068/* True if the arguments to NODE should be evaluated in right-to-left 4069 order regardless of PUSH_ARGS_REVERSED. */ 4070#define CALL_EXPR_REVERSE_ARGS(NODE) \ 4071 TREE_LANG_FLAG_5 (CALL_OR_AGGR_INIT_CHECK (NODE)) 4072 4073/* True if CALL_EXPR was written as an operator expression, not a function 4074 call. */ 4075#define CALL_EXPR_OPERATOR_SYNTAX(NODE) \ 4076 TREE_LANG_FLAG_6 (CALL_OR_AGGR_INIT_CHECK (NODE)) 4077 4078/* A TREE_LIST containing the result of phase 1 name lookup of the operator 4079 overloads that are pertinent to the dependent operator expression whose 4080 type is NODE. Each TREE_PURPOSE is an IDENTIFIER_NODE and TREE_VALUE is 4081 the corresponding (possibly empty) lookup result. The TREE_TYPE of the 4082 first TREE_LIST node points back to NODE. */ 4083#define DEPENDENT_OPERATOR_TYPE_SAVED_LOOKUPS(NODE) \ 4084 TYPE_VALUES_RAW (DEPENDENT_OPERATOR_TYPE_CHECK (NODE)) 4085 4086/* Guarded helper for the above accessor macro that takes a (templated) 4087 operator expression instead of the type thereof. */ 4088inline tree 4089templated_operator_saved_lookups (tree t) 4090{ 4091 tree type = TREE_TYPE (EXPR_CHECK (t)); 4092 if (type && TREE_CODE (type) == DEPENDENT_OPERATOR_TYPE) 4093 return DEPENDENT_OPERATOR_TYPE_SAVED_LOOKUPS (type); 4094 else 4095 return NULL_TREE; 4096} 4097 4098/* Indicates whether a string literal has been parenthesized. Such 4099 usages are disallowed in certain circumstances. */ 4100 4101#define PAREN_STRING_LITERAL_P(NODE) \ 4102 TREE_LANG_FLAG_0 (STRING_CST_CHECK (NODE)) 4103 4104/* Indicates whether a COMPONENT_REF or a SCOPE_REF has been parenthesized, an 4105 INDIRECT_REF comes from parenthesizing a _DECL, or a PAREN_EXPR identifies a 4106 parenthesized initializer relevant for decltype(auto). Currently only set 4107 some of the time in C++14 mode. */ 4108 4109#define REF_PARENTHESIZED_P(NODE) \ 4110 TREE_LANG_FLAG_2 (TREE_CHECK5 ((NODE), COMPONENT_REF, INDIRECT_REF, SCOPE_REF, VIEW_CONVERT_EXPR, PAREN_EXPR)) 4111 4112/* Nonzero if this AGGR_INIT_EXPR provides for initialization via a 4113 constructor call, rather than an ordinary function call. */ 4114#define AGGR_INIT_VIA_CTOR_P(NODE) \ 4115 TREE_LANG_FLAG_0 (AGGR_INIT_EXPR_CHECK (NODE)) 4116 4117/* Nonzero if expanding this AGGR_INIT_EXPR should first zero-initialize 4118 the object. */ 4119#define AGGR_INIT_ZERO_FIRST(NODE) \ 4120 TREE_LANG_FLAG_2 (AGGR_INIT_EXPR_CHECK (NODE)) 4121 4122/* Nonzero means that the call is the jump from a thunk to the 4123 thunked-to function. */ 4124#define AGGR_INIT_FROM_THUNK_P(NODE) \ 4125 (AGGR_INIT_EXPR_CHECK (NODE)->base.protected_flag) 4126 4127/* AGGR_INIT_EXPR accessors. These are equivalent to the CALL_EXPR 4128 accessors, except for AGGR_INIT_EXPR_SLOT (which takes the place of 4129 CALL_EXPR_STATIC_CHAIN). */ 4130 4131#define AGGR_INIT_EXPR_FN(NODE) TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 1) 4132#define AGGR_INIT_EXPR_SLOT(NODE) \ 4133 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 2) 4134#define AGGR_INIT_EXPR_ARG(NODE, I) \ 4135 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), (I) + 3) 4136#define aggr_init_expr_nargs(NODE) (VL_EXP_OPERAND_LENGTH(NODE) - 3) 4137 4138/* AGGR_INIT_EXPR_ARGP returns a pointer to the argument vector for NODE. 4139 We can't use &AGGR_INIT_EXPR_ARG (NODE, 0) because that will complain if 4140 the argument count is zero when checking is enabled. Instead, do 4141 the pointer arithmetic to advance past the 3 fixed operands in a 4142 AGGR_INIT_EXPR. That produces a valid pointer to just past the end of 4143 the operand array, even if it's not valid to dereference it. */ 4144#define AGGR_INIT_EXPR_ARGP(NODE) \ 4145 (&(TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 0)) + 3) 4146 4147/* Abstract iterators for AGGR_INIT_EXPRs. */ 4148 4149/* Structure containing iterator state. */ 4150struct aggr_init_expr_arg_iterator { 4151 tree t; /* the aggr_init_expr */ 4152 int n; /* argument count */ 4153 int i; /* next argument index */ 4154}; 4155 4156/* Initialize the abstract argument list iterator object ITER with the 4157 arguments from AGGR_INIT_EXPR node EXP. */ 4158inline void 4159init_aggr_init_expr_arg_iterator (tree exp, 4160 aggr_init_expr_arg_iterator *iter) 4161{ 4162 iter->t = exp; 4163 iter->n = aggr_init_expr_nargs (exp); 4164 iter->i = 0; 4165} 4166 4167/* Return the next argument from abstract argument list iterator object ITER, 4168 and advance its state. Return NULL_TREE if there are no more arguments. */ 4169inline tree 4170next_aggr_init_expr_arg (aggr_init_expr_arg_iterator *iter) 4171{ 4172 tree result; 4173 if (iter->i >= iter->n) 4174 return NULL_TREE; 4175 result = AGGR_INIT_EXPR_ARG (iter->t, iter->i); 4176 iter->i++; 4177 return result; 4178} 4179 4180/* Initialize the abstract argument list iterator object ITER, then advance 4181 past and return the first argument. Useful in for expressions, e.g. 4182 for (arg = first_aggr_init_expr_arg (exp, &iter); arg; 4183 arg = next_aggr_init_expr_arg (&iter)) */ 4184inline tree 4185first_aggr_init_expr_arg (tree exp, aggr_init_expr_arg_iterator *iter) 4186{ 4187 init_aggr_init_expr_arg_iterator (exp, iter); 4188 return next_aggr_init_expr_arg (iter); 4189} 4190 4191/* Test whether there are more arguments in abstract argument list iterator 4192 ITER, without changing its state. */ 4193inline bool 4194more_aggr_init_expr_args_p (const aggr_init_expr_arg_iterator *iter) 4195{ 4196 return (iter->i < iter->n); 4197} 4198 4199/* Iterate through each argument ARG of AGGR_INIT_EXPR CALL, using variable 4200 ITER (of type aggr_init_expr_arg_iterator) to hold the iteration state. */ 4201#define FOR_EACH_AGGR_INIT_EXPR_ARG(arg, iter, call) \ 4202 for ((arg) = first_aggr_init_expr_arg ((call), &(iter)); (arg); \ 4203 (arg) = next_aggr_init_expr_arg (&(iter))) 4204 4205/* VEC_INIT_EXPR accessors. */ 4206#define VEC_INIT_EXPR_SLOT(NODE) TREE_OPERAND (VEC_INIT_EXPR_CHECK (NODE), 0) 4207#define VEC_INIT_EXPR_INIT(NODE) TREE_OPERAND (VEC_INIT_EXPR_CHECK (NODE), 1) 4208 4209/* Indicates that a VEC_INIT_EXPR is a potential constant expression. 4210 Only set when the current function is constexpr. */ 4211#define VEC_INIT_EXPR_IS_CONSTEXPR(NODE) \ 4212 TREE_LANG_FLAG_0 (VEC_INIT_EXPR_CHECK (NODE)) 4213 4214/* Indicates that a VEC_INIT_EXPR is expressing value-initialization. */ 4215#define VEC_INIT_EXPR_VALUE_INIT(NODE) \ 4216 TREE_LANG_FLAG_1 (VEC_INIT_EXPR_CHECK (NODE)) 4217 4218/* If T is a VEC_INIT_EXPR, return it, possibly stripping a TARGET_EXPR 4219 wrapper. Otherwise, return null. */ 4220inline tree 4221get_vec_init_expr (tree t) 4222{ 4223 if (t && TREE_CODE (t) == TARGET_EXPR) 4224 t = TARGET_EXPR_INITIAL (t); 4225 if (t && TREE_CODE (t) == VEC_INIT_EXPR) 4226 return t; 4227 return NULL_TREE; 4228} 4229 4230/* The condition under which this MUST_NOT_THROW_EXPR actually blocks 4231 exceptions. NULL_TREE means 'true'. */ 4232#define MUST_NOT_THROW_COND(NODE) \ 4233 TREE_OPERAND (MUST_NOT_THROW_EXPR_CHECK (NODE), 1) 4234 4235/* The TYPE_MAIN_DECL for a class template type is a TYPE_DECL, not a 4236 TEMPLATE_DECL. This macro determines whether or not a given class 4237 type is really a template type, as opposed to an instantiation or 4238 specialization of one. */ 4239#define CLASSTYPE_IS_TEMPLATE(NODE) \ 4240 (CLASSTYPE_TEMPLATE_INFO (NODE) \ 4241 && !CLASSTYPE_USE_TEMPLATE (NODE) \ 4242 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE))) 4243 4244/* The name used by the user to name the typename type. Typically, 4245 this is an IDENTIFIER_NODE, and the same as the DECL_NAME on the 4246 corresponding TYPE_DECL. However, this may also be a 4247 TEMPLATE_ID_EXPR if we had something like `typename X::Y<T>'. */ 4248#define TYPENAME_TYPE_FULLNAME(NODE) \ 4249 (TYPE_VALUES_RAW (TYPENAME_TYPE_CHECK (NODE))) 4250 4251/* True if a TYPENAME_TYPE was declared as an "enum". */ 4252#define TYPENAME_IS_ENUM_P(NODE) \ 4253 (TREE_LANG_FLAG_0 (TYPENAME_TYPE_CHECK (NODE))) 4254 4255/* True if a TYPENAME_TYPE was declared as a "class", "struct", or 4256 "union". */ 4257#define TYPENAME_IS_CLASS_P(NODE) \ 4258 (TREE_LANG_FLAG_1 (TYPENAME_TYPE_CHECK (NODE))) 4259 4260/* True if a TYPENAME_TYPE is in the process of being resolved. */ 4261#define TYPENAME_IS_RESOLVING_P(NODE) \ 4262 (TREE_LANG_FLAG_2 (TYPENAME_TYPE_CHECK (NODE))) 4263 4264/* [class.virtual] 4265 4266 A class that declares or inherits a virtual function is called a 4267 polymorphic class. */ 4268#define TYPE_POLYMORPHIC_P(NODE) (TREE_LANG_FLAG_2 (NODE)) 4269 4270/* Nonzero if this class has a virtual function table pointer. */ 4271#define TYPE_CONTAINS_VPTR_P(NODE) \ 4272 (TYPE_POLYMORPHIC_P (NODE) || CLASSTYPE_VBASECLASSES (NODE)) 4273 4274/* Nonzero if NODE is a FUNCTION_DECL or VARIABLE_DECL (for a decl 4275 with namespace scope) declared in a local scope. */ 4276#define DECL_LOCAL_DECL_P(NODE) \ 4277 DECL_LANG_FLAG_0 (VAR_OR_FUNCTION_DECL_CHECK (NODE)) 4278 4279/* The namespace-scope decl a DECL_LOCAL_DECL_P aliases. */ 4280#define DECL_LOCAL_DECL_ALIAS(NODE) \ 4281 DECL_ACCESS ((gcc_checking_assert (DECL_LOCAL_DECL_P (NODE)), NODE)) 4282 4283/* Nonzero if NODE is the target for genericization of 'return' stmts 4284 in constructors/destructors of targetm.cxx.cdtor_returns_this targets. */ 4285#define LABEL_DECL_CDTOR(NODE) \ 4286 DECL_LANG_FLAG_2 (LABEL_DECL_CHECK (NODE)) 4287 4288/* True if NODE was declared with auto in its return type, but it has 4289 started compilation and so the return type might have been changed by 4290 return type deduction; its declared return type should be found in 4291 DECL_SAVED_AUTO_RETURN_TYPE (NODE). */ 4292#define FNDECL_USED_AUTO(NODE) \ 4293 TREE_LANG_FLAG_2 (FUNCTION_DECL_CHECK (NODE)) 4294 4295/* True if NODE is needed for a manifestly constant-evaluated expression. 4296 This doesn't especially need to be a flag, since currently it's only 4297 used for error recovery; if we run out of function flags it could move 4298 to an attribute. */ 4299#define FNDECL_MANIFESTLY_CONST_EVALUATED(NODE) \ 4300 TREE_LANG_FLAG_4 (FUNCTION_DECL_CHECK (NODE)) 4301 4302/* True for artificial decls added for OpenMP privatized non-static 4303 data members. */ 4304#define DECL_OMP_PRIVATIZED_MEMBER(NODE) \ 4305 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))->u.base.anticipated_p) 4306 4307/* Nonzero if NODE is an artificial FUNCTION_DECL for 4308 #pragma omp declare reduction. */ 4309#define DECL_OMP_DECLARE_REDUCTION_P(NODE) \ 4310 (LANG_DECL_FN_CHECK (DECL_COMMON_CHECK (NODE))->omp_declare_reduction_p) 4311 4312/* Nonzero if DECL has been declared threadprivate by 4313 #pragma omp threadprivate. */ 4314#define CP_DECL_THREADPRIVATE_P(DECL) \ 4315 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (DECL))->u.base.threadprivate_or_deleted_p) 4316 4317/* Nonzero if NODE is a VAR_DECL which has been declared inline. */ 4318#define DECL_VAR_DECLARED_INLINE_P(NODE) \ 4319 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE)) \ 4320 ? DECL_LANG_SPECIFIC (NODE)->u.base.var_declared_inline_p \ 4321 : false) 4322#define SET_DECL_VAR_DECLARED_INLINE_P(NODE) \ 4323 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))->u.base.var_declared_inline_p \ 4324 = true) 4325 4326/* True if NODE is a constant variable with a value-dependent initializer. */ 4327#define DECL_DEPENDENT_INIT_P(NODE) \ 4328 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE)) \ 4329 && DECL_LANG_SPECIFIC (NODE)->u.base.dependent_init_p) 4330#define SET_DECL_DEPENDENT_INIT_P(NODE, X) \ 4331 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))->u.base.dependent_init_p = (X)) 4332 4333/* Nonzero if NODE is an artificial VAR_DECL for a C++17 structured binding 4334 declaration or one of VAR_DECLs for the user identifiers in it. */ 4335#define DECL_DECOMPOSITION_P(NODE) \ 4336 (VAR_P (NODE) && DECL_LANG_SPECIFIC (NODE) \ 4337 ? DECL_LANG_SPECIFIC (NODE)->u.base.selector == lds_decomp \ 4338 : false) 4339 4340/* The underlying artificial VAR_DECL for structured binding. */ 4341#define DECL_DECOMP_BASE(NODE) \ 4342 (LANG_DECL_DECOMP_CHECK (NODE)->base) 4343 4344/* Nonzero if NODE is an inline VAR_DECL. In C++17, static data members 4345 declared with constexpr specifier are implicitly inline variables. */ 4346#define DECL_INLINE_VAR_P(NODE) \ 4347 (DECL_VAR_DECLARED_INLINE_P (NODE) \ 4348 || (cxx_dialect >= cxx17 \ 4349 && DECL_DECLARED_CONSTEXPR_P (NODE) \ 4350 && DECL_CLASS_SCOPE_P (NODE))) 4351 4352/* Nonzero if DECL was declared with '= delete'. */ 4353#define DECL_DELETED_FN(DECL) \ 4354 (LANG_DECL_FN_CHECK (DECL)->min.base.threadprivate_or_deleted_p) 4355 4356/* Nonzero if DECL was declared with '= default' (maybe implicitly). */ 4357#define DECL_DEFAULTED_FN(DECL) \ 4358 (LANG_DECL_FN_CHECK (DECL)->defaulted_p) 4359 4360/* Nonzero if DECL is explicitly defaulted in the class body. */ 4361#define DECL_DEFAULTED_IN_CLASS_P(DECL) \ 4362 (DECL_DEFAULTED_FN (DECL) && DECL_INITIALIZED_IN_CLASS_P (DECL)) 4363/* Nonzero if DECL was defaulted outside the class body. */ 4364#define DECL_DEFAULTED_OUTSIDE_CLASS_P(DECL) \ 4365 (DECL_DEFAULTED_FN (DECL) \ 4366 && !(DECL_ARTIFICIAL (DECL) || DECL_INITIALIZED_IN_CLASS_P (DECL))) 4367 4368/* Record whether a typedef for type `int' was actually `signed int'. */ 4369#define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP) 4370 4371/* Returns nonzero if DECL has external linkage, as specified by the 4372 language standard. (This predicate may hold even when the 4373 corresponding entity is not actually given external linkage in the 4374 object file; see decl_linkage for details.) */ 4375#define DECL_EXTERNAL_LINKAGE_P(DECL) \ 4376 (decl_linkage (DECL) == lk_external) 4377 4378/* Keep these codes in ascending code order. */ 4379 4380#define INTEGRAL_CODE_P(CODE) \ 4381 ((CODE) == ENUMERAL_TYPE \ 4382 || (CODE) == BOOLEAN_TYPE \ 4383 || (CODE) == INTEGER_TYPE) 4384 4385/* [basic.fundamental] 4386 4387 Types bool, char, wchar_t, and the signed and unsigned integer types 4388 are collectively called integral types. 4389 4390 Note that INTEGRAL_TYPE_P, as defined in tree.h, allows enumeration 4391 types as well, which is incorrect in C++. Keep these checks in 4392 ascending code order. */ 4393#define CP_INTEGRAL_TYPE_P(TYPE) \ 4394 (TREE_CODE (TYPE) == BOOLEAN_TYPE \ 4395 || TREE_CODE (TYPE) == INTEGER_TYPE) 4396 4397/* Returns true if TYPE is an integral or enumeration name. Keep 4398 these checks in ascending code order. */ 4399#define INTEGRAL_OR_ENUMERATION_TYPE_P(TYPE) \ 4400 (TREE_CODE (TYPE) == ENUMERAL_TYPE || CP_INTEGRAL_TYPE_P (TYPE)) 4401 4402/* Returns true if TYPE is an integral or unscoped enumeration type. */ 4403#define INTEGRAL_OR_UNSCOPED_ENUMERATION_TYPE_P(TYPE) \ 4404 (UNSCOPED_ENUM_P (TYPE) || CP_INTEGRAL_TYPE_P (TYPE)) 4405 4406/* True if the class type TYPE is a literal type. */ 4407#define CLASSTYPE_LITERAL_P(TYPE) \ 4408 (LANG_TYPE_CLASS_CHECK (TYPE)->is_literal) 4409 4410/* [basic.fundamental] 4411 4412 Integral and floating types are collectively called arithmetic 4413 types. 4414 4415 As a GNU extension, we also accept complex types. 4416 4417 Keep these checks in ascending code order. */ 4418#define ARITHMETIC_TYPE_P(TYPE) \ 4419 (CP_INTEGRAL_TYPE_P (TYPE) \ 4420 || TREE_CODE (TYPE) == REAL_TYPE \ 4421 || TREE_CODE (TYPE) == COMPLEX_TYPE) 4422 4423/* True iff TYPE is cv decltype(nullptr). */ 4424#define NULLPTR_TYPE_P(TYPE) (TREE_CODE (TYPE) == NULLPTR_TYPE) 4425 4426/* [basic.types] 4427 4428 Arithmetic types, enumeration types, pointer types, 4429 pointer-to-member types, and std::nullptr_t are collectively called 4430 scalar types. 4431 4432 Keep these checks in ascending code order. */ 4433#define SCALAR_TYPE_P(TYPE) \ 4434 (TYPE_PTRDATAMEM_P (TYPE) \ 4435 || TREE_CODE (TYPE) == ENUMERAL_TYPE \ 4436 || ARITHMETIC_TYPE_P (TYPE) \ 4437 || TYPE_PTR_P (TYPE) \ 4438 || TYPE_PTRMEMFUNC_P (TYPE) \ 4439 || NULLPTR_TYPE_P (TYPE)) 4440 4441/* Determines whether this type is a C++0x scoped enumeration 4442 type. Scoped enumerations types are introduced via "enum class" or 4443 "enum struct", e.g., 4444 4445 enum class Color { 4446 Red, Green, Blue 4447 }; 4448 4449 Scoped enumeration types are different from normal (unscoped) 4450 enumeration types in several ways: 4451 4452 - The enumerators of a scoped enumeration type are only available 4453 within the scope of the enumeration type and not in the 4454 enclosing scope. For example, the Red color can be referred to 4455 with "Color::Red" but not "Red". 4456 4457 - Scoped enumerators and enumerations do not implicitly convert 4458 to integers or 'bool'. 4459 4460 - The underlying type of the enum is well-defined. */ 4461#define SCOPED_ENUM_P(TYPE) \ 4462 (TREE_CODE (TYPE) == ENUMERAL_TYPE && ENUM_IS_SCOPED (TYPE)) 4463 4464/* Determine whether this is an unscoped enumeration type. */ 4465#define UNSCOPED_ENUM_P(TYPE) \ 4466 (TREE_CODE (TYPE) == ENUMERAL_TYPE && !ENUM_IS_SCOPED (TYPE)) 4467 4468/* Set the flag indicating whether an ENUMERAL_TYPE is a C++0x scoped 4469 enumeration type (1) or a normal (unscoped) enumeration type 4470 (0). */ 4471#define SET_SCOPED_ENUM_P(TYPE, VAL) \ 4472 (ENUM_IS_SCOPED (TYPE) = (VAL)) 4473 4474#define SET_OPAQUE_ENUM_P(TYPE, VAL) \ 4475 (ENUM_IS_OPAQUE (TYPE) = (VAL)) 4476 4477#define OPAQUE_ENUM_P(TYPE) \ 4478 (TREE_CODE (TYPE) == ENUMERAL_TYPE && ENUM_IS_OPAQUE (TYPE)) 4479 4480/* Determines whether an ENUMERAL_TYPE has an explicit 4481 underlying type. */ 4482#define ENUM_FIXED_UNDERLYING_TYPE_P(NODE) (TYPE_LANG_FLAG_5 (NODE)) 4483 4484/* Returns the underlying type of the given enumeration type. The 4485 underlying type is determined in different ways, depending on the 4486 properties of the enum: 4487 4488 - In C++0x, the underlying type can be explicitly specified, e.g., 4489 4490 enum E1 : char { ... } // underlying type is char 4491 4492 - In a C++0x scoped enumeration, the underlying type is int 4493 unless otherwises specified: 4494 4495 enum class E2 { ... } // underlying type is int 4496 4497 - Otherwise, the underlying type is determined based on the 4498 values of the enumerators. In this case, the 4499 ENUM_UNDERLYING_TYPE will not be set until after the definition 4500 of the enumeration is completed by finish_enum. */ 4501#define ENUM_UNDERLYING_TYPE(TYPE) \ 4502 TREE_TYPE (ENUMERAL_TYPE_CHECK (TYPE)) 4503 4504/* [dcl.init.aggr] 4505 4506 An aggregate is an array or a class with no user-provided 4507 constructors, no brace-or-equal-initializers for non-static data 4508 members, no private or protected non-static data members, no 4509 base classes, and no virtual functions. 4510 4511 As an extension, we also treat vectors as aggregates. Keep these 4512 checks in ascending code order. */ 4513#define CP_AGGREGATE_TYPE_P(TYPE) \ 4514 (gnu_vector_type_p (TYPE) \ 4515 || TREE_CODE (TYPE) == ARRAY_TYPE \ 4516 || (CLASS_TYPE_P (TYPE) && COMPLETE_TYPE_P (TYPE) && !CLASSTYPE_NON_AGGREGATE (TYPE))) 4517 4518/* Nonzero for a class type means that the class type has a 4519 user-declared constructor. */ 4520#define TYPE_HAS_USER_CONSTRUCTOR(NODE) (TYPE_LANG_FLAG_1 (NODE)) 4521 4522/* Nonzero means that the FUNCTION_TYPE or METHOD_TYPE has a 4523 late-specified return type. */ 4524#define TYPE_HAS_LATE_RETURN_TYPE(NODE) \ 4525 (TYPE_LANG_FLAG_2 (FUNC_OR_METHOD_CHECK (NODE))) 4526 4527/* When appearing in an INDIRECT_REF, it means that the tree structure 4528 underneath is actually a call to a constructor. This is needed 4529 when the constructor must initialize local storage (which can 4530 be automatically destroyed), rather than allowing it to allocate 4531 space from the heap. 4532 4533 When appearing in a SAVE_EXPR, it means that underneath 4534 is a call to a constructor. 4535 4536 When appearing in a CONSTRUCTOR, the expression is an unconverted 4537 compound literal. 4538 4539 When appearing in a FIELD_DECL, it means that this field 4540 has been duly initialized in its constructor. */ 4541#define TREE_HAS_CONSTRUCTOR(NODE) (TREE_LANG_FLAG_4 (NODE)) 4542 4543/* True if NODE is a brace-enclosed initializer. */ 4544#define BRACE_ENCLOSED_INITIALIZER_P(NODE) \ 4545 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_TYPE (NODE) == init_list_type_node) 4546 4547/* True if NODE is a compound-literal, i.e., a brace-enclosed 4548 initializer cast to a particular type. This is mostly only set during 4549 template parsing; once the initializer has been digested into an actual 4550 value of the type, the expression is represented by a TARGET_EXPR. */ 4551#define COMPOUND_LITERAL_P(NODE) \ 4552 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_HAS_CONSTRUCTOR (NODE)) 4553 4554#define EMPTY_CONSTRUCTOR_P(NODE) (TREE_CODE (NODE) == CONSTRUCTOR \ 4555 && vec_safe_is_empty(CONSTRUCTOR_ELTS(NODE))\ 4556 && !TREE_HAS_CONSTRUCTOR (NODE)) 4557 4558/* True if NODE is a init-list used as a direct-initializer, i.e. 4559 B b{1,2}, not B b({1,2}) or B b = {1,2}. */ 4560#define CONSTRUCTOR_IS_DIRECT_INIT(NODE) (TREE_LANG_FLAG_0 (CONSTRUCTOR_CHECK (NODE))) 4561 4562/* True if this CONSTRUCTOR is instantiation-dependent and needs to be 4563 substituted. */ 4564#define CONSTRUCTOR_IS_DEPENDENT(NODE) \ 4565 (TREE_LANG_FLAG_1 (CONSTRUCTOR_CHECK (NODE))) 4566 4567/* True if this CONSTRUCTOR should not be used as a variable initializer 4568 because it was loaded from a constexpr variable with mutable fields. */ 4569#define CONSTRUCTOR_MUTABLE_POISON(NODE) \ 4570 (TREE_LANG_FLAG_2 (CONSTRUCTOR_CHECK (NODE))) 4571 4572/* True if this typed CONSTRUCTOR represents C99 compound-literal syntax rather 4573 than C++11 functional cast syntax. */ 4574#define CONSTRUCTOR_C99_COMPOUND_LITERAL(NODE) \ 4575 (TREE_LANG_FLAG_3 (CONSTRUCTOR_CHECK (NODE))) 4576 4577/* True if this CONSTRUCTOR contains PLACEHOLDER_EXPRs referencing the 4578 CONSTRUCTOR's type not nested inside another CONSTRUCTOR marked with 4579 CONSTRUCTOR_PLACEHOLDER_BOUNDARY. */ 4580#define CONSTRUCTOR_PLACEHOLDER_BOUNDARY(NODE) \ 4581 (TREE_LANG_FLAG_5 (CONSTRUCTOR_CHECK (NODE))) 4582 4583#define DIRECT_LIST_INIT_P(NODE) \ 4584 (BRACE_ENCLOSED_INITIALIZER_P (NODE) && CONSTRUCTOR_IS_DIRECT_INIT (NODE)) 4585 4586/* True if this is a designated initializer (when we allow initializer-clauses 4587 mixed with designated-initializer-clauses set whenever there is at least 4588 one designated-initializer-clause), or a C99 designator. */ 4589#define CONSTRUCTOR_IS_DESIGNATED_INIT(NODE) \ 4590 (TREE_LANG_FLAG_6 (CONSTRUCTOR_CHECK (NODE))) 4591 4592/* True if this CONSTRUCTOR comes from a parenthesized list of values, e.g. 4593 A(1, 2, 3). */ 4594#define CONSTRUCTOR_IS_PAREN_INIT(NODE) \ 4595 (CONSTRUCTOR_CHECK(NODE)->base.private_flag) 4596 4597/* True if reshape_init built this sub-CONSTRUCTOR to undo the brace elision 4598 of the original CONSTRUCTOR. This flag is used during C++20 aggregate 4599 CTAD. */ 4600#define CONSTRUCTOR_BRACES_ELIDED_P(NODE) \ 4601 (CONSTRUCTOR_CHECK (NODE)->base.protected_flag) 4602 4603/* True if NODE represents a conversion for direct-initialization in a 4604 template. Set by perform_implicit_conversion_flags. */ 4605#define IMPLICIT_CONV_EXPR_DIRECT_INIT(NODE) \ 4606 (TREE_LANG_FLAG_0 (IMPLICIT_CONV_EXPR_CHECK (NODE))) 4607 4608/* True if NODE represents a dependent conversion of a non-type template 4609 argument. Set by maybe_convert_nontype_argument. */ 4610#define IMPLICIT_CONV_EXPR_NONTYPE_ARG(NODE) \ 4611 (TREE_LANG_FLAG_1 (IMPLICIT_CONV_EXPR_CHECK (NODE))) 4612 4613/* True if NODE represents a conversion for braced-init-list in a 4614 template. Set by perform_implicit_conversion_flags. */ 4615#define IMPLICIT_CONV_EXPR_BRACED_INIT(NODE) \ 4616 (TREE_LANG_FLAG_2 (IMPLICIT_CONV_EXPR_CHECK (NODE))) 4617 4618/* Nonzero means that an object of this type cannot be initialized using 4619 an initializer list. */ 4620#define CLASSTYPE_NON_AGGREGATE(NODE) \ 4621 (LANG_TYPE_CLASS_CHECK (NODE)->non_aggregate) 4622#define TYPE_NON_AGGREGATE_CLASS(NODE) \ 4623 (CLASS_TYPE_P (NODE) && CLASSTYPE_NON_AGGREGATE (NODE)) 4624 4625/* Nonzero if there is a non-trivial X::op=(cv X&) for this class. */ 4626#define TYPE_HAS_COMPLEX_COPY_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_copy_assign) 4627 4628/* Nonzero if there is a non-trivial X::X(cv X&) for this class. */ 4629#define TYPE_HAS_COMPLEX_COPY_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_copy_ctor) 4630 4631/* Nonzero if there is a non-trivial X::op=(X&&) for this class. */ 4632#define TYPE_HAS_COMPLEX_MOVE_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_move_assign) 4633 4634/* Nonzero if there is a non-trivial X::X(X&&) for this class. */ 4635#define TYPE_HAS_COMPLEX_MOVE_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_move_ctor) 4636 4637/* Nonzero if there is no trivial default constructor for this class. */ 4638#define TYPE_HAS_COMPLEX_DFLT(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_dflt) 4639 4640/* Nonzero if TYPE has a trivial destructor. From [class.dtor]: 4641 4642 A destructor is trivial if it is an implicitly declared 4643 destructor and if: 4644 4645 - all of the direct base classes of its class have trivial 4646 destructors, 4647 4648 - for all of the non-static data members of its class that are 4649 of class type (or array thereof), each such class has a 4650 trivial destructor. */ 4651#define TYPE_HAS_TRIVIAL_DESTRUCTOR(NODE) \ 4652 (!TYPE_HAS_NONTRIVIAL_DESTRUCTOR (NODE)) 4653 4654/* Nonzero for _TYPE node means that this type does not have a trivial 4655 destructor. Therefore, destroying an object of this type will 4656 involve a call to a destructor. This can apply to objects of 4657 ARRAY_TYPE if the type of the elements needs a destructor. */ 4658#define TYPE_HAS_NONTRIVIAL_DESTRUCTOR(NODE) \ 4659 (TYPE_LANG_FLAG_4 (NODE)) 4660 4661/* Nonzero for class type means that the default constructor is trivial. */ 4662#define TYPE_HAS_TRIVIAL_DFLT(NODE) \ 4663 (TYPE_HAS_DEFAULT_CONSTRUCTOR (NODE) && ! TYPE_HAS_COMPLEX_DFLT (NODE)) 4664 4665/* Nonzero for class type means that copy initialization of this type can use 4666 a bitwise copy. */ 4667#define TYPE_HAS_TRIVIAL_COPY_CTOR(NODE) \ 4668 (TYPE_HAS_COPY_CTOR (NODE) && ! TYPE_HAS_COMPLEX_COPY_CTOR (NODE)) 4669 4670/* Nonzero for class type means that assignment of this type can use 4671 a bitwise copy. */ 4672#define TYPE_HAS_TRIVIAL_COPY_ASSIGN(NODE) \ 4673 (TYPE_HAS_COPY_ASSIGN (NODE) && ! TYPE_HAS_COMPLEX_COPY_ASSIGN (NODE)) 4674 4675/* Returns true if NODE is a pointer-to-data-member. */ 4676#define TYPE_PTRDATAMEM_P(NODE) \ 4677 (TREE_CODE (NODE) == OFFSET_TYPE) 4678 4679/* Returns true if NODE is a pointer. */ 4680#define TYPE_PTR_P(NODE) \ 4681 (TREE_CODE (NODE) == POINTER_TYPE) 4682 4683/* Returns true if NODE is a reference. */ 4684#define TYPE_REF_P(NODE) \ 4685 (TREE_CODE (NODE) == REFERENCE_TYPE) 4686 4687/* Returns true if NODE is a pointer or a reference. */ 4688#define INDIRECT_TYPE_P(NODE) \ 4689 (TYPE_PTR_P (NODE) || TYPE_REF_P (NODE)) 4690 4691/* Returns true if NODE is an object type: 4692 4693 [basic.types] 4694 4695 An object type is a (possibly cv-qualified) type that is not a 4696 function type, not a reference type, and not a void type. 4697 4698 Keep these checks in ascending order, for speed. */ 4699#define TYPE_OBJ_P(NODE) \ 4700 (!TYPE_REF_P (NODE) \ 4701 && !VOID_TYPE_P (NODE) \ 4702 && !FUNC_OR_METHOD_TYPE_P (NODE)) 4703 4704/* Returns true if NODE is a pointer to an object. Keep these checks 4705 in ascending tree code order. */ 4706#define TYPE_PTROB_P(NODE) \ 4707 (TYPE_PTR_P (NODE) && TYPE_OBJ_P (TREE_TYPE (NODE))) 4708 4709/* Returns true if NODE is a reference to an object. Keep these checks 4710 in ascending tree code order. */ 4711#define TYPE_REF_OBJ_P(NODE) \ 4712 (TYPE_REF_P (NODE) && TYPE_OBJ_P (TREE_TYPE (NODE))) 4713 4714/* Returns true if NODE is a pointer to an object, or a pointer to 4715 void. Keep these checks in ascending tree code order. */ 4716#define TYPE_PTROBV_P(NODE) \ 4717 (TYPE_PTR_P (NODE) \ 4718 && !FUNC_OR_METHOD_TYPE_P (TREE_TYPE (NODE))) 4719 4720/* Returns true if NODE is a pointer to function type. */ 4721#define TYPE_PTRFN_P(NODE) \ 4722 (TYPE_PTR_P (NODE) \ 4723 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE) 4724 4725/* Returns true if NODE is a reference to function type. */ 4726#define TYPE_REFFN_P(NODE) \ 4727 (TYPE_REF_P (NODE) \ 4728 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE) 4729 4730/* Returns true if NODE is a pointer to member function type. */ 4731#define TYPE_PTRMEMFUNC_P(NODE) \ 4732 (TREE_CODE (NODE) == RECORD_TYPE \ 4733 && TYPE_PTRMEMFUNC_FLAG (NODE)) 4734 4735#define TYPE_PTRMEMFUNC_FLAG(NODE) \ 4736 (TYPE_LANG_FLAG_2 (RECORD_TYPE_CHECK (NODE))) 4737 4738/* Returns true if NODE is a pointer-to-member. */ 4739#define TYPE_PTRMEM_P(NODE) \ 4740 (TYPE_PTRDATAMEM_P (NODE) || TYPE_PTRMEMFUNC_P (NODE)) 4741 4742/* Returns true if NODE is a pointer or a pointer-to-member. */ 4743#define TYPE_PTR_OR_PTRMEM_P(NODE) \ 4744 (TYPE_PTR_P (NODE) || TYPE_PTRMEM_P (NODE)) 4745 4746/* Indicates when overload resolution may resolve to a pointer to 4747 member function. [expr.unary.op]/3 */ 4748#define PTRMEM_OK_P(NODE) \ 4749 TREE_LANG_FLAG_0 (TREE_CHECK3 ((NODE), ADDR_EXPR, OFFSET_REF, SCOPE_REF)) 4750 4751/* Get the POINTER_TYPE to the METHOD_TYPE associated with this 4752 pointer to member function. TYPE_PTRMEMFUNC_P _must_ be true, 4753 before using this macro. */ 4754#define TYPE_PTRMEMFUNC_FN_TYPE(NODE) \ 4755 (cp_build_qualified_type (TREE_TYPE (TYPE_FIELDS (NODE)),\ 4756 cp_type_quals (NODE))) 4757 4758/* As above, but can be used in places that want an lvalue at the expense 4759 of not necessarily having the correct cv-qualifiers. */ 4760#define TYPE_PTRMEMFUNC_FN_TYPE_RAW(NODE) \ 4761 (TREE_TYPE (TYPE_FIELDS (NODE))) 4762 4763/* Returns `A' for a type like `int (A::*)(double)' */ 4764#define TYPE_PTRMEMFUNC_OBJECT_TYPE(NODE) \ 4765 TYPE_METHOD_BASETYPE (TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE))) 4766 4767/* The canonical internal RECORD_TYPE from the POINTER_TYPE to 4768 METHOD_TYPE. */ 4769#define TYPE_PTRMEMFUNC_TYPE(NODE) \ 4770 TYPE_LANG_SLOT_1 (NODE) 4771 4772/* For a pointer-to-member type of the form `T X::*', this is `X'. 4773 For a type like `void (X::*)() const', this type is `X', not `const 4774 X'. To get at the `const X' you have to look at the 4775 TYPE_PTRMEM_POINTED_TO_TYPE; there, the first parameter will have 4776 type `const X*'. */ 4777#define TYPE_PTRMEM_CLASS_TYPE(NODE) \ 4778 (TYPE_PTRDATAMEM_P (NODE) \ 4779 ? TYPE_OFFSET_BASETYPE (NODE) \ 4780 : TYPE_PTRMEMFUNC_OBJECT_TYPE (NODE)) 4781 4782/* For a pointer-to-member type of the form `T X::*', this is `T'. */ 4783#define TYPE_PTRMEM_POINTED_TO_TYPE(NODE) \ 4784 (TYPE_PTRDATAMEM_P (NODE) \ 4785 ? TREE_TYPE (NODE) \ 4786 : TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE))) 4787 4788/* For a pointer-to-member constant `X::Y' this is the RECORD_TYPE for 4789 `X'. */ 4790#define PTRMEM_CST_CLASS(NODE) \ 4791 TYPE_PTRMEM_CLASS_TYPE (TREE_TYPE (PTRMEM_CST_CHECK (NODE))) 4792 4793/* For a pointer-to-member constant `X::Y' this is the _DECL for 4794 `Y'. */ 4795#define PTRMEM_CST_MEMBER(NODE) \ 4796 (((ptrmem_cst_t)PTRMEM_CST_CHECK (NODE))->member) 4797 4798/* For a pointer-to-member constant `X::Y' this is a location where 4799 the address of the member has been taken. */ 4800#define PTRMEM_CST_LOCATION(NODE) \ 4801 (((ptrmem_cst_t)PTRMEM_CST_CHECK (NODE))->locus) 4802 4803/* The expression in question for a TYPEOF_TYPE. */ 4804#define TYPEOF_TYPE_EXPR(NODE) (TYPE_VALUES_RAW (TYPEOF_TYPE_CHECK (NODE))) 4805 4806/* The type in question for an UNDERLYING_TYPE. */ 4807#define UNDERLYING_TYPE_TYPE(NODE) \ 4808 (TYPE_VALUES_RAW (UNDERLYING_TYPE_CHECK (NODE))) 4809 4810/* The type in question for BASES. */ 4811#define BASES_TYPE(NODE) \ 4812 (TYPE_VALUES_RAW (BASES_CHECK (NODE))) 4813 4814#define BASES_DIRECT(NODE) \ 4815 TREE_LANG_FLAG_0 (BASES_CHECK (NODE)) 4816 4817/* The expression in question for a DECLTYPE_TYPE. */ 4818#define DECLTYPE_TYPE_EXPR(NODE) (TYPE_VALUES_RAW (DECLTYPE_TYPE_CHECK (NODE))) 4819 4820/* Whether the DECLTYPE_TYPE_EXPR of NODE was originally parsed as an 4821 id-expression or a member-access expression. When false, it was 4822 parsed as a full expression. */ 4823#define DECLTYPE_TYPE_ID_EXPR_OR_MEMBER_ACCESS_P(NODE) \ 4824 (DECLTYPE_TYPE_CHECK (NODE))->type_common.string_flag 4825 4826/* These flags indicate that we want different semantics from normal 4827 decltype: lambda capture just drops references, 4828 lambda proxies look through implicit dereference. */ 4829#define DECLTYPE_FOR_LAMBDA_CAPTURE(NODE) \ 4830 TREE_LANG_FLAG_0 (DECLTYPE_TYPE_CHECK (NODE)) 4831#define DECLTYPE_FOR_LAMBDA_PROXY(NODE) \ 4832 TREE_LANG_FLAG_2 (DECLTYPE_TYPE_CHECK (NODE)) 4833#define DECLTYPE_FOR_REF_CAPTURE(NODE) \ 4834 TREE_LANG_FLAG_3 (DECLTYPE_TYPE_CHECK (NODE)) 4835 4836/* Nonzero for VAR_DECL and FUNCTION_DECL node means that `extern' was 4837 specified in its declaration. This can also be set for an 4838 erroneously declared PARM_DECL. */ 4839#define DECL_THIS_EXTERN(NODE) \ 4840 DECL_LANG_FLAG_2 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE)) 4841 4842/* Nonzero for VAR_DECL and FUNCTION_DECL node means that `static' was 4843 specified in its declaration. This can also be set for an 4844 erroneously declared PARM_DECL. */ 4845#define DECL_THIS_STATIC(NODE) \ 4846 DECL_LANG_FLAG_6 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE)) 4847 4848/* Nonzero for FIELD_DECL node means that this field is a lambda capture 4849 field for an array of runtime bound. */ 4850#define DECL_VLA_CAPTURE_P(NODE) \ 4851 DECL_LANG_FLAG_1 (FIELD_DECL_CHECK (NODE)) 4852 4853/* Nonzero for PARM_DECL node means that this is an array function 4854 parameter, i.e, a[] rather than *a. */ 4855#define DECL_ARRAY_PARAMETER_P(NODE) \ 4856 DECL_LANG_FLAG_1 (PARM_DECL_CHECK (NODE)) 4857 4858/* Nonzero for a FIELD_DECL who's NSMDI is currently being 4859 instantiated. */ 4860#define DECL_INSTANTIATING_NSDMI_P(NODE) \ 4861 DECL_LANG_FLAG_2 (FIELD_DECL_CHECK (NODE)) 4862 4863/* Nonzero for FIELD_DECL node means that this field is a base class 4864 of the parent object, as opposed to a member field. */ 4865#define DECL_FIELD_IS_BASE(NODE) \ 4866 DECL_LANG_FLAG_6 (FIELD_DECL_CHECK (NODE)) 4867 4868/* Nonzero for FIELD_DECL node means that this field is a simple (no 4869 explicit initializer) lambda capture field, making it invisible to 4870 name lookup in unevaluated contexts. */ 4871#define DECL_NORMAL_CAPTURE_P(NODE) \ 4872 DECL_LANG_FLAG_7 (FIELD_DECL_CHECK (NODE)) 4873 4874/* Nonzero if TYPE is an anonymous union or struct type. We have to use a 4875 flag for this because "A union for which objects or pointers are 4876 declared is not an anonymous union" [class.union]. */ 4877#define ANON_AGGR_TYPE_P(NODE) \ 4878 (CLASS_TYPE_P (NODE) && LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr) 4879#define SET_ANON_AGGR_TYPE_P(NODE) \ 4880 (LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr = 1) 4881 4882/* Nonzero if TYPE is an anonymous union type. */ 4883#define ANON_UNION_TYPE_P(NODE) \ 4884 (TREE_CODE (NODE) == UNION_TYPE && ANON_AGGR_TYPE_P (NODE)) 4885 4886/* For an ANON_AGGR_TYPE_P the single FIELD_DECL it is used with. */ 4887#define ANON_AGGR_TYPE_FIELD(NODE) \ 4888 (LANG_TYPE_CLASS_CHECK (NODE)->typeinfo_var) 4889 4890/* Define fields and accessors for nodes representing declared names. */ 4891 4892/* True if TYPE is an unnamed structured type with a typedef for 4893 linkage purposes. In that case TYPE_NAME and TYPE_STUB_DECL of the 4894 MAIN-VARIANT are different. */ 4895#define TYPE_WAS_UNNAMED(NODE) \ 4896 (TYPE_NAME (TYPE_MAIN_VARIANT (NODE)) \ 4897 != TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE))) 4898 4899/* C++: all of these are overloaded! These apply only to TYPE_DECLs. */ 4900 4901/* The format of each node in the DECL_FRIENDLIST is as follows: 4902 4903 The TREE_PURPOSE will be the name of a function, i.e., an 4904 IDENTIFIER_NODE. The TREE_VALUE will be itself a TREE_LIST, whose 4905 TREE_VALUEs are friends with the given name. */ 4906#define DECL_FRIENDLIST(NODE) (DECL_INITIAL (NODE)) 4907#define FRIEND_NAME(LIST) (TREE_PURPOSE (LIST)) 4908#define FRIEND_DECLS(LIST) (TREE_VALUE (LIST)) 4909 4910/* The DECL_ACCESS, if non-NULL, is a TREE_LIST. The TREE_PURPOSE of 4911 each node is a type; the TREE_VALUE is the access granted for this 4912 DECL in that type. The DECL_ACCESS is set by access declarations. 4913 For example, if a member that would normally be public in a 4914 derived class is made protected, then the derived class and the 4915 protected_access_node will appear in the DECL_ACCESS for the node. */ 4916#define DECL_ACCESS(NODE) (LANG_DECL_MIN_CHECK (NODE)->access) 4917 4918/* Nonzero if the FUNCTION_DECL is a global constructor. */ 4919#define DECL_GLOBAL_CTOR_P(NODE) \ 4920 (LANG_DECL_FN_CHECK (NODE)->global_ctor_p) 4921 4922/* Nonzero if the FUNCTION_DECL is a global destructor. */ 4923#define DECL_GLOBAL_DTOR_P(NODE) \ 4924 (LANG_DECL_FN_CHECK (NODE)->global_dtor_p) 4925 4926/* Accessor macros for C++ template decl nodes. */ 4927 4928/* The DECL_TEMPLATE_PARMS are a list. The TREE_PURPOSE of each node 4929 is a INT_CST whose TREE_INT_CST_LOW indicates the level of the 4930 template parameters, with 1 being the outermost set of template 4931 parameters. The TREE_VALUE is a vector, whose elements are the 4932 template parameters at each level. Each element in the vector is a 4933 TREE_LIST, whose TREE_VALUE is a PARM_DECL (if the parameter is a 4934 non-type parameter), or a TYPE_DECL (if the parameter is a type 4935 parameter) or a TEMPLATE_DECL (if the parameter is a template 4936 parameter). The TREE_PURPOSE is the default value, if any. The 4937 TEMPLATE_PARM_INDEX for the parameter is available as the 4938 DECL_INITIAL (for a PARM_DECL) or as the TREE_TYPE (for a 4939 TYPE_DECL). 4940 4941 FIXME: CONST_CAST_TREE is a hack that hopefully will go away after 4942 tree is converted to C++ class hiearchy. */ 4943#define DECL_TEMPLATE_PARMS(NODE) \ 4944 ((struct tree_template_decl *)CONST_CAST_TREE (TEMPLATE_DECL_CHECK (NODE)))->arguments 4945#define DECL_INNERMOST_TEMPLATE_PARMS(NODE) \ 4946 INNERMOST_TEMPLATE_PARMS (DECL_TEMPLATE_PARMS (NODE)) 4947#define DECL_NTPARMS(NODE) \ 4948 TREE_VEC_LENGTH (DECL_INNERMOST_TEMPLATE_PARMS (NODE)) 4949/* For function, method, class-data templates. 4950 4951 FIXME: CONST_CAST_TREE is a hack that hopefully will go away after 4952 tree is converted to C++ class hiearchy. */ 4953#define DECL_TEMPLATE_RESULT(NODE) \ 4954 ((struct tree_template_decl *)CONST_CAST_TREE(TEMPLATE_DECL_CHECK (NODE)))->result 4955/* For a function template at namespace scope, DECL_TEMPLATE_INSTANTIATIONS 4956 lists all instantiations and specializations of the function so that 4957 tsubst_friend_function can reassign them to another template if we find 4958 that the namespace-scope template is really a partial instantiation of a 4959 friend template. 4960 4961 For a class template the DECL_TEMPLATE_INSTANTIATIONS lists holds 4962 all instantiations and specializations of the class type, including 4963 partial instantiations and partial specializations, so that if we 4964 explicitly specialize a partial instantiation we can walk the list 4965 in maybe_process_partial_specialization and reassign them or complain 4966 as appropriate. 4967 4968 In both cases, the TREE_PURPOSE of each node contains the arguments 4969 used; the TREE_VALUE contains the generated variable. The template 4970 arguments are always complete. For example, given: 4971 4972 template <class T> struct S1 { 4973 template <class U> struct S2 {}; 4974 template <class U> struct S2<U*> {}; 4975 }; 4976 4977 the record for the partial specialization will contain, as its 4978 argument list, { {T}, {U*} }, and will be on the 4979 DECL_TEMPLATE_INSTANTIATIONS list for `template <class T> template 4980 <class U> struct S1<T>::S2'. 4981 4982 This list is not used for other templates. */ 4983#define DECL_TEMPLATE_INSTANTIATIONS(NODE) \ 4984 DECL_SIZE_UNIT (TEMPLATE_DECL_CHECK (NODE)) 4985 4986/* For a class template, this list contains the partial 4987 specializations of this template. (Full specializations are not 4988 recorded on this list.) The TREE_PURPOSE holds the arguments used 4989 in the partial specialization (e.g., for `template <class T> struct 4990 S<T*, int>' this will be `T*, int'.) The arguments will also include 4991 any outer template arguments. The TREE_VALUE holds the TEMPLATE_DECL 4992 for the partial specialization. The TREE_TYPE is the _TYPE node for 4993 the partial specialization. 4994 4995 This list is not used for other templates. */ 4996#define DECL_TEMPLATE_SPECIALIZATIONS(NODE) \ 4997 DECL_SIZE (TEMPLATE_DECL_CHECK (NODE)) 4998 4999/* Nonzero for a DECL which is actually a template parameter. Keep 5000 these checks in ascending tree code order. */ 5001#define DECL_TEMPLATE_PARM_P(NODE) \ 5002 (DECL_LANG_FLAG_0 (NODE) \ 5003 && (TREE_CODE (NODE) == CONST_DECL \ 5004 || TREE_CODE (NODE) == PARM_DECL \ 5005 || TREE_CODE (NODE) == TYPE_DECL \ 5006 || TREE_CODE (NODE) == TEMPLATE_DECL)) 5007 5008/* Nonzero for a raw template parameter node. */ 5009#define TEMPLATE_PARM_P(NODE) \ 5010 (TREE_CODE (NODE) == TEMPLATE_TYPE_PARM \ 5011 || TREE_CODE (NODE) == TEMPLATE_TEMPLATE_PARM \ 5012 || TREE_CODE (NODE) == TEMPLATE_PARM_INDEX) 5013 5014/* Mark NODE as a template parameter. */ 5015#define SET_DECL_TEMPLATE_PARM_P(NODE) \ 5016 (DECL_LANG_FLAG_0 (NODE) = 1) 5017 5018/* Nonzero if NODE is a template template parameter. */ 5019#define DECL_TEMPLATE_TEMPLATE_PARM_P(NODE) \ 5020 (TREE_CODE (NODE) == TEMPLATE_DECL && DECL_TEMPLATE_PARM_P (NODE)) 5021 5022/* Nonzero for a DECL that represents a function template. */ 5023#define DECL_FUNCTION_TEMPLATE_P(NODE) \ 5024 (TREE_CODE (NODE) == TEMPLATE_DECL \ 5025 && DECL_TEMPLATE_RESULT (NODE) != NULL_TREE \ 5026 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == FUNCTION_DECL) 5027 5028/* Nonzero for a DECL that represents a class template or alias 5029 template. */ 5030#define DECL_TYPE_TEMPLATE_P(NODE) \ 5031 (TREE_CODE (NODE) == TEMPLATE_DECL \ 5032 && DECL_TEMPLATE_RESULT (NODE) != NULL_TREE \ 5033 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == TYPE_DECL) 5034 5035/* Nonzero for a DECL that represents a class template. */ 5036#define DECL_CLASS_TEMPLATE_P(NODE) \ 5037 (DECL_TYPE_TEMPLATE_P (NODE) \ 5038 && DECL_IMPLICIT_TYPEDEF_P (DECL_TEMPLATE_RESULT (NODE))) 5039 5040/* Nonzero for a TEMPLATE_DECL that represents an alias template. */ 5041#define DECL_ALIAS_TEMPLATE_P(NODE) \ 5042 (DECL_TYPE_TEMPLATE_P (NODE) \ 5043 && !DECL_ARTIFICIAL (DECL_TEMPLATE_RESULT (NODE))) 5044 5045/* Nonzero for a NODE which declares a type. */ 5046#define DECL_DECLARES_TYPE_P(NODE) \ 5047 (TREE_CODE (NODE) == TYPE_DECL || DECL_TYPE_TEMPLATE_P (NODE)) 5048 5049/* Nonzero if NODE declares a function. */ 5050#define DECL_DECLARES_FUNCTION_P(NODE) \ 5051 (TREE_CODE (NODE) == FUNCTION_DECL || DECL_FUNCTION_TEMPLATE_P (NODE)) 5052 5053/* Nonzero if NODE is the typedef implicitly generated for a type when 5054 the type is declared. In C++, `struct S {};' is roughly 5055 equivalent to `struct S {}; typedef struct S S;' in C. 5056 DECL_IMPLICIT_TYPEDEF_P will hold for the typedef indicated in this 5057 example. In C++, there is a second implicit typedef for each 5058 class, called the injected-class-name, in the scope of `S' itself, so that 5059 you can say `S::S'. DECL_SELF_REFERENCE_P will hold for that typedef. */ 5060#define DECL_IMPLICIT_TYPEDEF_P(NODE) \ 5061 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_2 (NODE)) 5062#define SET_DECL_IMPLICIT_TYPEDEF_P(NODE) \ 5063 (DECL_LANG_FLAG_2 (NODE) = 1) 5064#define DECL_SELF_REFERENCE_P(NODE) \ 5065 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_4 (NODE)) 5066#define SET_DECL_SELF_REFERENCE_P(NODE) \ 5067 (DECL_LANG_FLAG_4 (NODE) = 1) 5068 5069/* A `primary' template is one that has its own template header and is not 5070 a partial specialization. A member function of a class template is a 5071 template, but not primary. A member template is primary. Friend 5072 templates are primary, too. */ 5073 5074/* Returns the primary template corresponding to these parameters. */ 5075#define TPARMS_PRIMARY_TEMPLATE(NODE) (TREE_TYPE (NODE)) 5076 5077#define DECL_PRIMARY_TEMPLATE(NODE) \ 5078 (TPARMS_PRIMARY_TEMPLATE (DECL_INNERMOST_TEMPLATE_PARMS (NODE))) 5079 5080/* Returns nonzero if NODE is a primary template. */ 5081#define PRIMARY_TEMPLATE_P(NODE) (DECL_PRIMARY_TEMPLATE (NODE) == (NODE)) 5082 5083/* Nonzero iff NODE is a specialization of a template. The value 5084 indicates the type of specializations: 5085 5086 1=implicit instantiation 5087 5088 2=partial or explicit specialization, e.g.: 5089 5090 template <> int min<int> (int, int), 5091 5092 3=explicit instantiation, e.g.: 5093 5094 template int min<int> (int, int); 5095 5096 Note that NODE will be marked as a specialization even if the 5097 template it is instantiating is not a primary template. For 5098 example, given: 5099 5100 template <typename T> struct O { 5101 void f(); 5102 struct I {}; 5103 }; 5104 5105 both O<int>::f and O<int>::I will be marked as instantiations. 5106 5107 If DECL_USE_TEMPLATE is nonzero, then DECL_TEMPLATE_INFO will also 5108 be non-NULL. */ 5109#define DECL_USE_TEMPLATE(NODE) (DECL_LANG_SPECIFIC (NODE)->u.base.use_template) 5110 5111/* Like DECL_USE_TEMPLATE, but for class types. */ 5112#define CLASSTYPE_USE_TEMPLATE(NODE) \ 5113 (LANG_TYPE_CLASS_CHECK (NODE)->use_template) 5114 5115/* True if NODE is a specialization of a primary template. */ 5116#define CLASSTYPE_SPECIALIZATION_OF_PRIMARY_TEMPLATE_P(NODE) \ 5117 (CLASS_TYPE_P (NODE) \ 5118 && CLASSTYPE_USE_TEMPLATE (NODE) \ 5119 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE))) 5120 5121#define DECL_TEMPLATE_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) & 1) 5122#define CLASSTYPE_TEMPLATE_INSTANTIATION(NODE) \ 5123 (CLASSTYPE_USE_TEMPLATE (NODE) & 1) 5124 5125#define DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) == 2) 5126#define SET_DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) = 2) 5127 5128/* Returns true for an explicit or partial specialization of a class 5129 template. */ 5130#define CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \ 5131 (CLASSTYPE_USE_TEMPLATE (NODE) == 2) 5132#define SET_CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \ 5133 (CLASSTYPE_USE_TEMPLATE (NODE) = 2) 5134 5135#define DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 1) 5136#define SET_DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 1) 5137#define CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \ 5138 (CLASSTYPE_USE_TEMPLATE (NODE) == 1) 5139#define SET_CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \ 5140 (CLASSTYPE_USE_TEMPLATE (NODE) = 1) 5141 5142#define DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 3) 5143#define SET_DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 3) 5144#define CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \ 5145 (CLASSTYPE_USE_TEMPLATE (NODE) == 3) 5146#define SET_CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \ 5147 (CLASSTYPE_USE_TEMPLATE (NODE) = 3) 5148 5149/* Nonzero if DECL is a friend function which is an instantiation 5150 from the point of view of the compiler, but not from the point of 5151 view of the language. For example given: 5152 template <class T> struct S { friend void f(T) {}; }; 5153 the declaration of `void f(int)' generated when S<int> is 5154 instantiated will not be a DECL_TEMPLATE_INSTANTIATION, but will be 5155 a DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION. */ 5156#define DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION(DECL) \ 5157 (DECL_LANG_SPECIFIC (DECL) && DECL_TEMPLATE_INFO (DECL) \ 5158 && !DECL_USE_TEMPLATE (DECL)) 5159 5160/* Nonzero if DECL is a function generated from a function 'temploid', 5161 i.e. template, member of class template, or dependent friend. */ 5162#define DECL_TEMPLOID_INSTANTIATION(DECL) \ 5163 (DECL_TEMPLATE_INSTANTIATION (DECL) \ 5164 || DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (DECL)) 5165 5166/* Nonzero if DECL is either defined implicitly by the compiler or 5167 generated from a temploid. */ 5168#define DECL_GENERATED_P(DECL) \ 5169 (DECL_TEMPLOID_INSTANTIATION (DECL) || DECL_DEFAULTED_FN (DECL)) 5170 5171/* Nonzero iff we are currently processing a declaration for an 5172 entity with its own template parameter list, and which is not a 5173 full specialization. */ 5174#define PROCESSING_REAL_TEMPLATE_DECL_P() \ 5175 (!processing_template_parmlist \ 5176 && current_template_depth > template_class_depth (current_scope ())) 5177 5178/* Nonzero if this VAR_DECL or FUNCTION_DECL has already been 5179 instantiated, i.e. its definition has been generated from the 5180 pattern given in the template. */ 5181#define DECL_TEMPLATE_INSTANTIATED(NODE) \ 5182 DECL_LANG_FLAG_1 (VAR_OR_FUNCTION_DECL_CHECK (NODE)) 5183 5184/* We know what we're doing with this decl now. */ 5185#define DECL_INTERFACE_KNOWN(NODE) DECL_LANG_FLAG_5 (NODE) 5186 5187/* DECL_EXTERNAL must be set on a decl until the decl is actually emitted, 5188 so that assemble_external will work properly. So we have this flag to 5189 tell us whether the decl is really not external. 5190 5191 This flag does not indicate whether or not the decl is defined in the 5192 current translation unit; it indicates whether or not we should emit the 5193 decl at the end of compilation if it is defined and needed. */ 5194#define DECL_NOT_REALLY_EXTERN(NODE) \ 5195 (DECL_LANG_SPECIFIC (NODE)->u.base.not_really_extern) 5196 5197#define DECL_REALLY_EXTERN(NODE) \ 5198 (DECL_EXTERNAL (NODE) \ 5199 && (!DECL_LANG_SPECIFIC (NODE) || !DECL_NOT_REALLY_EXTERN (NODE))) 5200 5201/* A thunk is a stub function. 5202 5203 A thunk is an alternate entry point for an ordinary FUNCTION_DECL. 5204 The address of the ordinary FUNCTION_DECL is given by the 5205 DECL_INITIAL, which is always an ADDR_EXPR whose operand is a 5206 FUNCTION_DECL. The job of the thunk is to either adjust the this 5207 pointer before transferring control to the FUNCTION_DECL, or call 5208 FUNCTION_DECL and then adjust the result value. Note, the result 5209 pointer adjusting thunk must perform a call to the thunked 5210 function, (or be implemented via passing some invisible parameter 5211 to the thunked function, which is modified to perform the 5212 adjustment just before returning). 5213 5214 A thunk may perform either, or both, of the following operations: 5215 5216 o Adjust the this or result pointer by a constant offset. 5217 o Adjust the this or result pointer by looking up a vcall or vbase offset 5218 in the vtable. 5219 5220 A this pointer adjusting thunk converts from a base to a derived 5221 class, and hence adds the offsets. A result pointer adjusting thunk 5222 converts from a derived class to a base, and hence subtracts the 5223 offsets. If both operations are performed, then the constant 5224 adjustment is performed first for this pointer adjustment and last 5225 for the result pointer adjustment. 5226 5227 The constant adjustment is given by THUNK_FIXED_OFFSET. If the 5228 vcall or vbase offset is required, THUNK_VIRTUAL_OFFSET is 5229 used. For this pointer adjusting thunks, it is the vcall offset 5230 into the vtable. For result pointer adjusting thunks it is the 5231 binfo of the virtual base to convert to. Use that binfo's vbase 5232 offset. 5233 5234 It is possible to have equivalent covariant thunks. These are 5235 distinct virtual covariant thunks whose vbase offsets happen to 5236 have the same value. THUNK_ALIAS is used to pick one as the 5237 canonical thunk, which will get all the this pointer adjusting 5238 thunks attached to it. */ 5239 5240/* An integer indicating how many bytes should be subtracted from the 5241 this or result pointer when this function is called. */ 5242#define THUNK_FIXED_OFFSET(DECL) \ 5243 (DECL_LANG_SPECIFIC (THUNK_FUNCTION_CHECK (DECL))->u.fn.u5.fixed_offset) 5244 5245/* A tree indicating how to perform the virtual adjustment. For a this 5246 adjusting thunk it is the number of bytes to be added to the vtable 5247 to find the vcall offset. For a result adjusting thunk, it is the 5248 binfo of the relevant virtual base. If NULL, then there is no 5249 virtual adjust. (The vptr is always located at offset zero from 5250 the this or result pointer.) (If the covariant type is within the 5251 class hierarchy being laid out, the vbase index is not yet known 5252 at the point we need to create the thunks, hence the need to use 5253 binfos.) */ 5254 5255#define THUNK_VIRTUAL_OFFSET(DECL) \ 5256 (LANG_DECL_MIN_CHECK (FUNCTION_DECL_CHECK (DECL))->access) 5257 5258/* A thunk which is equivalent to another thunk. */ 5259#define THUNK_ALIAS(DECL) \ 5260 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->u.min.template_info) 5261 5262/* For thunk NODE, this is the FUNCTION_DECL thunked to. It is 5263 possible for the target to be a thunk too. */ 5264#define THUNK_TARGET(NODE) \ 5265 (LANG_DECL_FN_CHECK (NODE)->befriending_classes) 5266 5267/* True for a SCOPE_REF iff the "template" keyword was used to 5268 indicate that the qualified name denotes a template. */ 5269#define QUALIFIED_NAME_IS_TEMPLATE(NODE) \ 5270 (TREE_LANG_FLAG_1 (SCOPE_REF_CHECK (NODE))) 5271 5272/* [coroutines] 5273*/ 5274 5275/* True if NODE is a co-routine FUNCTION_DECL. */ 5276#define DECL_COROUTINE_P(NODE) \ 5277 (LANG_DECL_FN_CHECK (DECL_COMMON_CHECK (NODE))->coroutine_p) 5278 5279/* For a FUNCTION_DECL of a coroutine, this holds the ACTOR helper function 5280 decl. */ 5281#define DECL_ACTOR_FN(NODE) \ 5282 (coro_get_actor_function ((NODE))) 5283 5284/* For a FUNCTION_DECL of a coroutine, this holds the DESTROY helper function 5285 decl. */ 5286#define DECL_DESTROY_FN(NODE) \ 5287 (coro_get_destroy_function ((NODE))) 5288 5289/* For a FUNCTION_DECL of a coroutine helper (ACTOR or DESTROY), this points 5290 back to the original (ramp) function. */ 5291#define DECL_RAMP_FN(NODE) \ 5292 (coro_get_ramp_function (NODE)) 5293 5294/* True for an OMP_ATOMIC that has dependent parameters. These are stored 5295 as an expr in operand 1, and integer_zero_node or clauses in operand 0. */ 5296#define OMP_ATOMIC_DEPENDENT_P(NODE) \ 5297 (TREE_CODE (TREE_OPERAND (OMP_ATOMIC_CHECK (NODE), 0)) == INTEGER_CST \ 5298 || TREE_CODE (TREE_OPERAND (OMP_ATOMIC_CHECK (NODE), 0)) == OMP_CLAUSE) 5299 5300/* Used while gimplifying continue statements bound to OMP_FOR nodes. */ 5301#define OMP_FOR_GIMPLIFYING_P(NODE) \ 5302 (TREE_LANG_FLAG_0 (OMP_LOOPING_CHECK (NODE))) 5303 5304/* A language-specific token attached to the OpenMP data clauses to 5305 hold code (or code fragments) related to ctors, dtors, and op=. 5306 See semantics.cc for details. */ 5307#define CP_OMP_CLAUSE_INFO(NODE) \ 5308 TREE_TYPE (OMP_CLAUSE_RANGE_CHECK (NODE, OMP_CLAUSE_PRIVATE, \ 5309 OMP_CLAUSE__CONDTEMP_)) 5310 5311/* Nonzero if this transaction expression's body contains statements. */ 5312#define TRANSACTION_EXPR_IS_STMT(NODE) \ 5313 TREE_LANG_FLAG_0 (TRANSACTION_EXPR_CHECK (NODE)) 5314 5315/* These macros provide convenient access to the various _STMT nodes 5316 created when parsing template declarations. */ 5317#define TRY_STMTS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 0) 5318#define TRY_HANDLERS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 1) 5319 5320#define EH_SPEC_STMTS(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 0) 5321#define EH_SPEC_RAISES(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 1) 5322 5323#define USING_STMT_NAMESPACE(NODE) TREE_OPERAND (USING_STMT_CHECK (NODE), 0) 5324 5325/* Nonzero if this try block is a function try block. */ 5326#define FN_TRY_BLOCK_P(NODE) TREE_LANG_FLAG_3 (TRY_BLOCK_CHECK (NODE)) 5327#define HANDLER_PARMS(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 0) 5328#define HANDLER_BODY(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 1) 5329#define HANDLER_TYPE(NODE) TREE_TYPE (HANDLER_CHECK (NODE)) 5330 5331/* CLEANUP_STMT accessors. The statement(s) covered, the cleanup to run 5332 and the VAR_DECL for which this cleanup exists. */ 5333#define CLEANUP_BODY(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 0) 5334#define CLEANUP_EXPR(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 1) 5335#define CLEANUP_DECL(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 2) 5336 5337/* IF_STMT accessors. These give access to the condition of the if 5338 statement, the then block of the if statement, and the else block 5339 of the if statement if it exists. */ 5340#define IF_COND(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 0) 5341#define THEN_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 1) 5342#define ELSE_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 2) 5343#define IF_SCOPE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 3) 5344#define IF_STMT_CONSTEXPR_P(NODE) TREE_LANG_FLAG_0 (IF_STMT_CHECK (NODE)) 5345#define IF_STMT_CONSTEVAL_P(NODE) TREE_LANG_FLAG_2 (IF_STMT_CHECK (NODE)) 5346 5347/* Like PACK_EXPANSION_EXTRA_ARGS, for constexpr if. IF_SCOPE is used while 5348 building an IF_STMT; IF_STMT_EXTRA_ARGS is used after it is complete. */ 5349#define IF_STMT_EXTRA_ARGS(NODE) IF_SCOPE (NODE) 5350 5351/* RANGE_FOR_STMT accessors. These give access to the declarator, 5352 expression, body, and scope of the statement, respectively. */ 5353#define RANGE_FOR_DECL(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 0) 5354#define RANGE_FOR_EXPR(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 1) 5355#define RANGE_FOR_BODY(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 2) 5356#define RANGE_FOR_SCOPE(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 3) 5357#define RANGE_FOR_UNROLL(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 4) 5358#define RANGE_FOR_INIT_STMT(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 5) 5359#define RANGE_FOR_IVDEP(NODE) TREE_LANG_FLAG_6 (RANGE_FOR_STMT_CHECK (NODE)) 5360 5361/* STMT_EXPR accessor. */ 5362#define STMT_EXPR_STMT(NODE) TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0) 5363 5364/* EXPR_STMT accessor. This gives the expression associated with an 5365 expression statement. */ 5366#define EXPR_STMT_EXPR(NODE) TREE_OPERAND (EXPR_STMT_CHECK (NODE), 0) 5367 5368/* True if this TARGET_EXPR was created by build_cplus_new, and so we can 5369 discard it if it isn't useful. */ 5370#define TARGET_EXPR_IMPLICIT_P(NODE) \ 5371 TREE_LANG_FLAG_0 (TARGET_EXPR_CHECK (NODE)) 5372 5373/* True if this TARGET_EXPR is the result of list-initialization of a 5374 temporary. */ 5375#define TARGET_EXPR_LIST_INIT_P(NODE) \ 5376 TREE_LANG_FLAG_1 (TARGET_EXPR_CHECK (NODE)) 5377 5378/* True if this TARGET_EXPR expresses direct-initialization of an object 5379 to be named later. */ 5380#define TARGET_EXPR_DIRECT_INIT_P(NODE) \ 5381 TREE_LANG_FLAG_2 (TARGET_EXPR_CHECK (NODE)) 5382 5383/* True if NODE is a TARGET_EXPR that just expresses a copy of its INITIAL; if 5384 the initializer has void type, it's doing something more complicated. */ 5385#define SIMPLE_TARGET_EXPR_P(NODE) \ 5386 (TREE_CODE (NODE) == TARGET_EXPR \ 5387 && TARGET_EXPR_INITIAL (NODE) \ 5388 && !VOID_TYPE_P (TREE_TYPE (TARGET_EXPR_INITIAL (NODE)))) 5389 5390/* True if T is a TARGET_EXPR for which we'll need to replace_decl to use it as 5391 an initializer. */ 5392inline bool 5393target_expr_needs_replace (tree t) 5394{ 5395 if (!t || TREE_CODE (t) != TARGET_EXPR) 5396 return false; 5397 tree init = TARGET_EXPR_INITIAL (t); 5398 if (!init || !VOID_TYPE_P (TREE_TYPE (init))) 5399 return false; 5400 while (TREE_CODE (init) == COMPOUND_EXPR) 5401 init = TREE_OPERAND (init, 1); 5402 return TREE_CODE (init) != AGGR_INIT_EXPR; 5403} 5404 5405/* True if EXPR expresses direct-initialization of a TYPE. */ 5406#define DIRECT_INIT_EXPR_P(TYPE,EXPR) \ 5407 (TREE_CODE (EXPR) == TARGET_EXPR && TREE_LANG_FLAG_2 (EXPR) \ 5408 && same_type_ignoring_top_level_qualifiers_p (TYPE, TREE_TYPE (EXPR))) 5409 5410/* True if this CONVERT_EXPR is for a conversion to virtual base in 5411 an NSDMI, and should be re-evaluated when used in a constructor. */ 5412#define CONVERT_EXPR_VBASE_PATH(NODE) \ 5413 TREE_LANG_FLAG_0 (CONVERT_EXPR_CHECK (NODE)) 5414 5415/* True if SIZEOF_EXPR argument is type. */ 5416#define SIZEOF_EXPR_TYPE_P(NODE) \ 5417 TREE_LANG_FLAG_0 (SIZEOF_EXPR_CHECK (NODE)) 5418 5419/* True if the ALIGNOF_EXPR was spelled "alignof". */ 5420#define ALIGNOF_EXPR_STD_P(NODE) \ 5421 TREE_LANG_FLAG_0 (ALIGNOF_EXPR_CHECK (NODE)) 5422 5423/* OMP_DEPOBJ accessors. These give access to the depobj expression of the 5424 #pragma omp depobj directive and the clauses, respectively. If 5425 OMP_DEPOBJ_CLAUSES is INTEGER_CST, it is instead the update clause kind 5426 or OMP_CLAUSE_DEPEND_LAST for destroy clause. */ 5427#define OMP_DEPOBJ_DEPOBJ(NODE) TREE_OPERAND (OMP_DEPOBJ_CHECK (NODE), 0) 5428#define OMP_DEPOBJ_CLAUSES(NODE) TREE_OPERAND (OMP_DEPOBJ_CHECK (NODE), 1) 5429 5430/* An enumeration of the kind of tags that C++ accepts. */ 5431enum tag_types { 5432 none_type = 0, /* Not a tag type. */ 5433 record_type, /* "struct" types. */ 5434 class_type, /* "class" types. */ 5435 union_type, /* "union" types. */ 5436 enum_type, /* "enum" types. */ 5437 typename_type, /* "typename" types. */ 5438 scope_type /* namespace or tagged type name followed by :: */ 5439}; 5440 5441/* The various kinds of lvalues we distinguish. */ 5442enum cp_lvalue_kind_flags { 5443 clk_none = 0, /* Things that are not an lvalue. */ 5444 clk_ordinary = 1, /* An ordinary lvalue. */ 5445 clk_rvalueref = 2,/* An xvalue (rvalue formed using an rvalue reference) */ 5446 clk_class = 4, /* A prvalue of class or array type. */ 5447 clk_bitfield = 8, /* An lvalue for a bit-field. */ 5448 clk_packed = 16, /* An lvalue for a packed field. */ 5449 clk_implicit_rval = 1<<5 /* An lvalue being treated as an xvalue. */ 5450}; 5451 5452/* This type is used for parameters and variables which hold 5453 combinations of the flags in enum cp_lvalue_kind_flags. */ 5454typedef int cp_lvalue_kind; 5455 5456/* Various kinds of template specialization, instantiation, etc. */ 5457enum tmpl_spec_kind { 5458 tsk_none, /* Not a template at all. */ 5459 tsk_invalid_member_spec, /* An explicit member template 5460 specialization, but the enclosing 5461 classes have not all been explicitly 5462 specialized. */ 5463 tsk_invalid_expl_inst, /* An explicit instantiation containing 5464 template parameter lists. */ 5465 tsk_excessive_parms, /* A template declaration with too many 5466 template parameter lists. */ 5467 tsk_insufficient_parms, /* A template declaration with too few 5468 parameter lists. */ 5469 tsk_template, /* A template declaration. */ 5470 tsk_expl_spec, /* An explicit specialization. */ 5471 tsk_expl_inst /* An explicit instantiation. */ 5472}; 5473 5474/* The various kinds of access. BINFO_ACCESS depends on these being 5475 two bit quantities. The numerical values are important; they are 5476 used to initialize RTTI data structures, so changing them changes 5477 the ABI. */ 5478enum access_kind { 5479 ak_none = 0, /* Inaccessible. */ 5480 ak_public = 1, /* Accessible, as a `public' thing. */ 5481 ak_protected = 2, /* Accessible, as a `protected' thing. */ 5482 ak_private = 3 /* Accessible, as a `private' thing. */ 5483}; 5484 5485/* The various kinds of special functions. If you add to this list, 5486 you should update special_function_p as well. */ 5487enum special_function_kind { 5488 sfk_none = 0, /* Not a special function. This enumeral 5489 must have value zero; see 5490 special_function_p. */ 5491 /* The following are ordered, for use by member synthesis fns. */ 5492 sfk_destructor, /* A destructor. */ 5493 sfk_constructor, /* A constructor. */ 5494 sfk_inheriting_constructor, /* An inheriting constructor */ 5495 sfk_copy_constructor, /* A copy constructor. */ 5496 sfk_move_constructor, /* A move constructor. */ 5497 sfk_copy_assignment, /* A copy assignment operator. */ 5498 sfk_move_assignment, /* A move assignment operator. */ 5499 /* The following are unordered. */ 5500 sfk_complete_destructor, /* A destructor for complete objects. */ 5501 sfk_base_destructor, /* A destructor for base subobjects. */ 5502 sfk_deleting_destructor, /* A destructor for complete objects that 5503 deletes the object after it has been 5504 destroyed. */ 5505 sfk_conversion, /* A conversion operator. */ 5506 sfk_deduction_guide, /* A class template deduction guide. */ 5507 sfk_comparison, /* A comparison operator (e.g. ==, <, <=>). */ 5508 sfk_virtual_destructor /* Used by member synthesis fns. */ 5509}; 5510 5511/* The various kinds of linkage. From [basic.link], 5512 5513 A name is said to have linkage when it might denote the same 5514 object, reference, function, type, template, namespace or value 5515 as a name introduced in another scope: 5516 5517 -- When a name has external linkage, the entity it denotes can 5518 be referred to from scopes of other translation units or from 5519 other scopes of the same translation unit. 5520 5521 -- When a name has internal linkage, the entity it denotes can 5522 be referred to by names from other scopes in the same 5523 translation unit. 5524 5525 -- When a name has no linkage, the entity it denotes cannot be 5526 referred to by names from other scopes. */ 5527 5528enum linkage_kind { 5529 lk_none, /* No linkage. */ 5530 lk_internal, /* Internal linkage. */ 5531 lk_external /* External linkage. */ 5532}; 5533 5534enum duration_kind { 5535 dk_static, 5536 dk_thread, 5537 dk_auto, 5538 dk_dynamic 5539}; 5540 5541/* Bitmask flags to control type substitution. */ 5542enum tsubst_flags { 5543 tf_none = 0, /* nothing special */ 5544 tf_error = 1 << 0, /* give error messages */ 5545 tf_warning = 1 << 1, /* give warnings too */ 5546 tf_ignore_bad_quals = 1 << 2, /* ignore bad cvr qualifiers */ 5547 tf_keep_type_decl = 1 << 3, /* retain typedef type decls 5548 (make_typename_type use) */ 5549 tf_ptrmem_ok = 1 << 4, /* pointers to member ok (internal 5550 instantiate_type use) */ 5551 tf_user = 1 << 5, /* found template must be a user template 5552 (lookup_template_class use) */ 5553 tf_conv = 1 << 6, /* We are determining what kind of 5554 conversion might be permissible, 5555 not actually performing the 5556 conversion. */ 5557 tf_decltype = 1 << 7, /* We are the operand of decltype. 5558 Used to implement the special rules 5559 for calls in decltype (5.2.2/11). */ 5560 tf_partial = 1 << 8, /* Doing initial explicit argument 5561 substitution in fn_type_unification. */ 5562 tf_fndecl_type = 1 << 9, /* Substituting the type of a function 5563 declaration. */ 5564 tf_no_cleanup = 1 << 10, /* Do not build a cleanup 5565 (build_target_expr and friends) */ 5566 tf_norm = 1 << 11, /* Build diagnostic information during 5567 constraint normalization. */ 5568 tf_tst_ok = 1 << 12, /* Allow a typename-specifier to name 5569 a template (C++17 or later). */ 5570 tf_dguide = 1 << 13, /* Building a deduction guide from a ctor. */ 5571 /* Convenient substitution flags combinations. */ 5572 tf_warning_or_error = tf_warning | tf_error 5573}; 5574 5575/* This type is used for parameters and variables which hold 5576 combinations of the flags in enum tsubst_flags. */ 5577typedef int tsubst_flags_t; 5578 5579/* The kind of checking we can do looking in a class hierarchy. */ 5580enum base_access_flags { 5581 ba_any = 0, /* Do not check access, allow an ambiguous base, 5582 prefer a non-virtual base */ 5583 ba_unique = 1 << 0, /* Must be a unique base. */ 5584 ba_check_bit = 1 << 1, /* Check access. */ 5585 ba_check = ba_unique | ba_check_bit, 5586 ba_ignore_scope = 1 << 2 /* Ignore access allowed by local scope. */ 5587}; 5588 5589/* This type is used for parameters and variables which hold 5590 combinations of the flags in enum base_access_flags. */ 5591typedef int base_access; 5592 5593/* The various kinds of access check during parsing. */ 5594enum deferring_kind { 5595 dk_no_deferred = 0, /* Check access immediately */ 5596 dk_deferred = 1, /* Deferred check */ 5597 dk_no_check = 2 /* No access check */ 5598}; 5599 5600/* The kind of base we can find, looking in a class hierarchy. 5601 Values <0 indicate we failed. */ 5602enum base_kind { 5603 bk_inaccessible = -3, /* The base is inaccessible */ 5604 bk_ambig = -2, /* The base is ambiguous */ 5605 bk_not_base = -1, /* It is not a base */ 5606 bk_same_type = 0, /* It is the same type */ 5607 bk_proper_base = 1, /* It is a proper base */ 5608 bk_via_virtual = 2 /* It is a proper base, but via a virtual 5609 path. This might not be the canonical 5610 binfo. */ 5611}; 5612 5613/* Node for "pointer to (virtual) function". 5614 This may be distinct from ptr_type_node so gdb can distinguish them. */ 5615#define vfunc_ptr_type_node vtable_entry_type 5616 5617 5618/* For building calls to `delete'. */ 5619extern GTY(()) tree integer_two_node; 5620 5621/* The number of function bodies which we are currently processing. 5622 (Zero if we are at namespace scope, one inside the body of a 5623 function, two inside the body of a function in a local class, etc.) */ 5624extern int function_depth; 5625 5626/* Nonzero if we are inside spec_hasher::equal, which affects 5627 comparison of PARM_DECLs in cp_tree_equal. */ 5628extern int comparing_specializations; 5629 5630/* Nonzero if we want different dependent aliases to compare as unequal. 5631 FIXME we should always do this except during deduction/ordering. */ 5632extern int comparing_dependent_aliases; 5633 5634/* In parser.cc. */ 5635 5636/* Nonzero if we are parsing an unevaluated operand: an operand to 5637 sizeof, typeof, or alignof. This is a count since operands to 5638 sizeof can be nested. */ 5639 5640extern int cp_unevaluated_operand; 5641 5642/* RAII class used to inhibit the evaluation of operands during parsing 5643 and template instantiation. Evaluation warnings are also inhibited. */ 5644 5645class cp_unevaluated 5646{ 5647public: 5648 cp_unevaluated (); 5649 ~cp_unevaluated (); 5650}; 5651 5652/* The reverse: an RAII class used for nested contexts that are evaluated even 5653 if the enclosing context is not. */ 5654 5655class cp_evaluated 5656{ 5657public: 5658 int uneval; 5659 int inhibit; 5660 cp_evaluated (bool reset = true) 5661 : uneval(cp_unevaluated_operand), inhibit(c_inhibit_evaluation_warnings) 5662 { if (reset) 5663 cp_unevaluated_operand = c_inhibit_evaluation_warnings = 0; } 5664 ~cp_evaluated () 5665 { cp_unevaluated_operand = uneval; 5666 c_inhibit_evaluation_warnings = inhibit; } 5667}; 5668 5669/* in pt.cc */ 5670 5671/* These values are used for the `STRICT' parameter to type_unification and 5672 fn_type_unification. Their meanings are described with the 5673 documentation for fn_type_unification. */ 5674 5675enum unification_kind_t { 5676 DEDUCE_CALL, 5677 DEDUCE_CONV, 5678 DEDUCE_EXACT 5679}; 5680 5681// An RAII class used to create a new pointer map for local 5682// specializations. When the stack goes out of scope, the 5683// previous pointer map is restored. 5684enum lss_policy { lss_blank, lss_copy, lss_nop }; 5685class local_specialization_stack 5686{ 5687public: 5688 local_specialization_stack (lss_policy = lss_blank); 5689 ~local_specialization_stack (); 5690 5691 hash_map<tree, tree> *saved; 5692}; 5693 5694/* Entry in the specialization hash table. */ 5695struct GTY((for_user)) spec_entry 5696{ 5697 tree tmpl; /* The general template this is a specialization of. */ 5698 tree args; /* The args for this (maybe-partial) specialization. */ 5699 tree spec; /* The specialization itself. */ 5700}; 5701 5702/* in class.cc */ 5703 5704extern int current_class_depth; 5705 5706/* in decl.cc */ 5707 5708/* An array of static vars & fns. */ 5709extern GTY(()) vec<tree, va_gc> *static_decls; 5710 5711/* An array of vtable-needing types that have no key function, or have 5712 an emitted key function. */ 5713extern GTY(()) vec<tree, va_gc> *keyed_classes; 5714 5715/* Here's where we control how name mangling takes place. */ 5716 5717/* Cannot use '$' up front, because this confuses gdb 5718 (names beginning with '$' are gdb-local identifiers). 5719 5720 Note that all forms in which the '$' is significant are long enough 5721 for direct indexing (meaning that if we know there is a '$' 5722 at a particular location, we can index into the string at 5723 any other location that provides distinguishing characters). */ 5724 5725/* Define NO_DOT_IN_LABEL in your favorite tm file if your assembler 5726 doesn't allow '.' in symbol names. */ 5727#ifndef NO_DOT_IN_LABEL 5728 5729#define JOINER '.' 5730#define JOIN_STR "." 5731 5732#define AUTO_TEMP_NAME "_.tmp_" 5733#define VFIELD_BASE ".vf" 5734#define VFIELD_NAME "_vptr." 5735#define VFIELD_NAME_FORMAT "_vptr.%s" 5736 5737#else /* NO_DOT_IN_LABEL */ 5738 5739#ifndef NO_DOLLAR_IN_LABEL 5740 5741#define JOINER '$' 5742#define JOIN_STR "$" 5743 5744#define AUTO_TEMP_NAME "_$tmp_" 5745#define VFIELD_BASE "$vf" 5746#define VFIELD_NAME "_vptr$" 5747#define VFIELD_NAME_FORMAT "_vptr$%s" 5748 5749#else /* NO_DOLLAR_IN_LABEL */ 5750 5751#define JOIN_STR "_" 5752 5753#define VTABLE_NAME "__vt_" 5754#define VTABLE_NAME_P(ID_NODE) \ 5755 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VTABLE_NAME, \ 5756 sizeof (VTABLE_NAME) - 1)) 5757#define VFIELD_BASE "__vfb" 5758#define VFIELD_NAME "__vptr_" 5759#define VFIELD_NAME_P(ID_NODE) \ 5760 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, \ 5761 sizeof (VFIELD_NAME) - 1)) 5762#define VFIELD_NAME_FORMAT "__vptr_%s" 5763 5764#endif /* NO_DOLLAR_IN_LABEL */ 5765#endif /* NO_DOT_IN_LABEL */ 5766 5767#define UDLIT_OP_ANSI_PREFIX "operator\"\"" 5768#define UDLIT_OP_ANSI_FORMAT UDLIT_OP_ANSI_PREFIX "%s" 5769#define UDLIT_OP_MANGLED_PREFIX "li" 5770#define UDLIT_OP_MANGLED_FORMAT UDLIT_OP_MANGLED_PREFIX "%s" 5771#define UDLIT_OPER_P(ID_NODE) \ 5772 (!strncmp (IDENTIFIER_POINTER (ID_NODE), \ 5773 UDLIT_OP_ANSI_PREFIX, \ 5774 sizeof (UDLIT_OP_ANSI_PREFIX) - 1)) 5775#define UDLIT_OP_SUFFIX(ID_NODE) \ 5776 (IDENTIFIER_POINTER (ID_NODE) + sizeof (UDLIT_OP_ANSI_PREFIX) - 1) 5777 5778#if !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) 5779 5780#define VTABLE_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == 'v' \ 5781 && IDENTIFIER_POINTER (ID_NODE)[2] == 't' \ 5782 && IDENTIFIER_POINTER (ID_NODE)[3] == JOINER) 5783 5784#define VFIELD_NAME_P(ID_NODE) \ 5785 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, sizeof(VFIELD_NAME)-1)) 5786 5787#endif /* !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) */ 5788 5789 5790/* Nonzero if we're done parsing and into end-of-file activities. 5791 Two if we're done with front-end processing. */ 5792 5793extern int at_eof; 5794 5795/* True if note_mangling_alias should enqueue mangling aliases for 5796 later generation, rather than emitting them right away. */ 5797 5798extern bool defer_mangling_aliases; 5799 5800/* True if noexcept is part of the type (i.e. in C++17). */ 5801 5802extern bool flag_noexcept_type; 5803 5804/* A list of namespace-scope objects which have constructors or 5805 destructors which reside in the global scope. The decl is stored 5806 in the TREE_VALUE slot and the initializer is stored in the 5807 TREE_PURPOSE slot. */ 5808extern GTY(()) tree static_aggregates; 5809/* Likewise, for thread local storage. */ 5810extern GTY(()) tree tls_aggregates; 5811 5812/* A hash-map mapping from variable decls to the dynamic initializer for 5813 the decl. This is currently only used by OpenMP. */ 5814extern GTY(()) decl_tree_map *dynamic_initializers; 5815 5816enum overload_flags { NO_SPECIAL = 0, DTOR_FLAG, TYPENAME_FLAG }; 5817 5818/* These are uses as bits in flags passed to various functions to 5819 control their behavior. Despite the LOOKUP_ prefix, many of these 5820 do not control name lookup. ??? Functions using these flags should 5821 probably be modified to accept explicit boolean flags for the 5822 behaviors relevant to them. */ 5823/* Check for access violations. */ 5824#define LOOKUP_PROTECT (1 << 0) 5825#define LOOKUP_NORMAL (LOOKUP_PROTECT) 5826/* Even if the function found by lookup is a virtual function, it 5827 should be called directly. */ 5828#define LOOKUP_NONVIRTUAL (1 << 1) 5829/* Non-converting (i.e., "explicit") constructors are not tried. This flag 5830 indicates that we are not performing direct-initialization. */ 5831#define LOOKUP_ONLYCONVERTING (1 << 2) 5832#define LOOKUP_IMPLICIT (LOOKUP_NORMAL | LOOKUP_ONLYCONVERTING) 5833/* If a temporary is created, it should be created so that it lives 5834 as long as the current variable bindings; otherwise it only lives 5835 until the end of the complete-expression. It also forces 5836 direct-initialization in cases where other parts of the compiler 5837 have already generated a temporary, such as reference 5838 initialization and the catch parameter. */ 5839#define DIRECT_BIND (1 << 3) 5840/* We're performing a user-defined conversion, so more user-defined 5841 conversions are not permitted (only built-in conversions). */ 5842#define LOOKUP_NO_CONVERSION (1 << 4) 5843/* The user has explicitly called a destructor. (Therefore, we do 5844 not need to check that the object is non-NULL before calling the 5845 destructor.) */ 5846#define LOOKUP_DESTRUCTOR (1 << 5) 5847/* Do not permit references to bind to temporaries. */ 5848#define LOOKUP_NO_TEMP_BIND (1 << 6) 5849/* We're trying to treat an lvalue as an rvalue. */ 5850/* FIXME remove when we extend the P1825 semantics to all standard modes, the 5851 C++20 approach uses IMPLICIT_RVALUE_P instead. */ 5852#define LOOKUP_PREFER_RVALUE (LOOKUP_NO_TEMP_BIND << 1) 5853/* We're inside an init-list, so narrowing conversions are ill-formed. */ 5854#define LOOKUP_NO_NARROWING (LOOKUP_PREFER_RVALUE << 1) 5855/* We're looking up a constructor for list-initialization. */ 5856#define LOOKUP_LIST_INIT_CTOR (LOOKUP_NO_NARROWING << 1) 5857/* This is the first parameter of a copy constructor. */ 5858#define LOOKUP_COPY_PARM (LOOKUP_LIST_INIT_CTOR << 1) 5859/* We only want to consider list constructors. */ 5860#define LOOKUP_LIST_ONLY (LOOKUP_COPY_PARM << 1) 5861/* Return after determining which function to call and checking access. 5862 Used by sythesized_method_walk to determine which functions will 5863 be called to initialize subobjects, in order to determine exception 5864 specification and possible implicit delete. 5865 This is kind of a hack, but exiting early avoids problems with trying 5866 to perform argument conversions when the class isn't complete yet. */ 5867#define LOOKUP_SPECULATIVE (LOOKUP_LIST_ONLY << 1) 5868/* Used by calls from defaulted functions to limit the overload set to avoid 5869 cycles trying to declare them (core issue 1092). */ 5870#define LOOKUP_DEFAULTED (LOOKUP_SPECULATIVE << 1) 5871/* Used in calls to store_init_value to suppress its usual call to 5872 digest_init. */ 5873#define LOOKUP_ALREADY_DIGESTED (LOOKUP_DEFAULTED << 1) 5874/* Like LOOKUP_NO_TEMP_BIND, but also prevent binding to xvalues. */ 5875#define LOOKUP_NO_RVAL_BIND (LOOKUP_ALREADY_DIGESTED << 1) 5876/* Used by case_conversion to disregard non-integral conversions. */ 5877#define LOOKUP_NO_NON_INTEGRAL (LOOKUP_NO_RVAL_BIND << 1) 5878/* Used for delegating constructors in order to diagnose self-delegation. */ 5879#define LOOKUP_DELEGATING_CONS (LOOKUP_NO_NON_INTEGRAL << 1) 5880/* Allow initialization of a flexible array members. */ 5881#define LOOKUP_ALLOW_FLEXARRAY_INIT (LOOKUP_DELEGATING_CONS << 1) 5882/* We're looking for either a rewritten comparison operator candidate or the 5883 operator to use on the former's result. We distinguish between the two by 5884 knowing that comparisons other than == and <=> must be the latter, as must 5885 a <=> expression trying to rewrite to <=> without reversing. */ 5886#define LOOKUP_REWRITTEN (LOOKUP_ALLOW_FLEXARRAY_INIT << 1) 5887/* Reverse the order of the two arguments for comparison rewriting. First we 5888 swap the arguments in add_operator_candidates, then we swap the conversions 5889 in add_candidate (so that they correspond to the original order of the 5890 args), then we swap the conversions back in build_new_op_1 (so they 5891 correspond to the order of the args in the candidate). */ 5892#define LOOKUP_REVERSED (LOOKUP_REWRITTEN << 1) 5893/* We're initializing an aggregate from a parenthesized list of values. */ 5894#define LOOKUP_AGGREGATE_PAREN_INIT (LOOKUP_REVERSED << 1) 5895 5896/* These flags are used by the conversion code. 5897 CONV_IMPLICIT : Perform implicit conversions (standard and user-defined). 5898 CONV_STATIC : Perform the explicit conversions for static_cast. 5899 CONV_CONST : Perform the explicit conversions for const_cast. 5900 CONV_REINTERPRET: Perform the explicit conversions for reinterpret_cast. 5901 CONV_PRIVATE : Perform upcasts to private bases. 5902 CONV_FORCE_TEMP : Require a new temporary when converting to the same 5903 aggregate type. */ 5904 5905#define CONV_IMPLICIT 1 5906#define CONV_STATIC 2 5907#define CONV_CONST 4 5908#define CONV_REINTERPRET 8 5909#define CONV_PRIVATE 16 5910#define CONV_FORCE_TEMP 32 5911#define CONV_FOLD 64 5912#define CONV_OLD_CONVERT (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \ 5913 | CONV_REINTERPRET) 5914#define CONV_C_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \ 5915 | CONV_REINTERPRET | CONV_PRIVATE | CONV_FORCE_TEMP) 5916#define CONV_BACKEND_CONVERT (CONV_OLD_CONVERT | CONV_FOLD) 5917 5918/* Used by build_expr_type_conversion to indicate which types are 5919 acceptable as arguments to the expression under consideration. */ 5920 5921#define WANT_INT 1 /* integer types, including bool */ 5922#define WANT_FLOAT 2 /* floating point types */ 5923#define WANT_ENUM 4 /* enumerated types */ 5924#define WANT_POINTER 8 /* pointer types */ 5925#define WANT_NULL 16 /* null pointer constant */ 5926#define WANT_VECTOR_OR_COMPLEX 32 /* vector or complex types */ 5927#define WANT_ARITH (WANT_INT | WANT_FLOAT | WANT_VECTOR_OR_COMPLEX) 5928 5929/* Used with comptypes, and related functions, to guide type 5930 comparison. */ 5931 5932#define COMPARE_STRICT 0 /* Just check if the types are the 5933 same. */ 5934#define COMPARE_BASE 1 /* Check to see if the second type is 5935 derived from the first. */ 5936#define COMPARE_DERIVED 2 /* Like COMPARE_BASE, but in 5937 reverse. */ 5938#define COMPARE_REDECLARATION 4 /* The comparison is being done when 5939 another declaration of an existing 5940 entity is seen. */ 5941#define COMPARE_STRUCTURAL 8 /* The comparison is intended to be 5942 structural. The actual comparison 5943 will be identical to 5944 COMPARE_STRICT. */ 5945 5946/* Used with start function. */ 5947#define SF_DEFAULT 0 /* No flags. */ 5948#define SF_PRE_PARSED 1 /* The function declaration has 5949 already been parsed. */ 5950#define SF_INCLASS_INLINE 2 /* The function is an inline, defined 5951 in the class body. */ 5952 5953/* Used with start_decl's initialized parameter. */ 5954#define SD_UNINITIALIZED 0 5955#define SD_INITIALIZED 1 5956/* Like SD_INITIALIZED, but also mark the new decl as DECL_DECOMPOSITION_P. */ 5957#define SD_DECOMPOSITION 2 5958#define SD_DEFAULTED 3 5959#define SD_DELETED 4 5960 5961/* Returns nonzero iff TYPE1 and TYPE2 are the same type, or if TYPE2 5962 is derived from TYPE1, or if TYPE2 is a pointer (reference) to a 5963 class derived from the type pointed to (referred to) by TYPE1. */ 5964#define same_or_base_type_p(TYPE1, TYPE2) \ 5965 comptypes ((TYPE1), (TYPE2), COMPARE_BASE) 5966 5967/* These macros are used to access a TEMPLATE_PARM_INDEX. */ 5968#define TEMPLATE_PARM_INDEX_CAST(NODE) \ 5969 ((template_parm_index*)TEMPLATE_PARM_INDEX_CHECK (NODE)) 5970#define TEMPLATE_PARM_IDX(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->index) 5971#define TEMPLATE_PARM_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->level) 5972#define TEMPLATE_PARM_DESCENDANTS(NODE) (TREE_CHAIN (NODE)) 5973#define TEMPLATE_PARM_ORIG_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->orig_level) 5974#define TEMPLATE_PARM_DECL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->decl) 5975#define TEMPLATE_PARM_PARAMETER_PACK(NODE) \ 5976 (TREE_LANG_FLAG_0 (TEMPLATE_PARM_INDEX_CHECK (NODE))) 5977 5978/* These macros are for accessing the fields of TEMPLATE_TYPE_PARM, 5979 TEMPLATE_TEMPLATE_PARM and BOUND_TEMPLATE_TEMPLATE_PARM nodes. */ 5980#define TEMPLATE_TYPE_PARM_INDEX(NODE) \ 5981 (TYPE_VALUES_RAW (TREE_CHECK3 ((NODE), TEMPLATE_TYPE_PARM, \ 5982 TEMPLATE_TEMPLATE_PARM, \ 5983 BOUND_TEMPLATE_TEMPLATE_PARM))) 5984#define TEMPLATE_TYPE_IDX(NODE) \ 5985 (TEMPLATE_PARM_IDX (TEMPLATE_TYPE_PARM_INDEX (NODE))) 5986#define TEMPLATE_TYPE_LEVEL(NODE) \ 5987 (TEMPLATE_PARM_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE))) 5988#define TEMPLATE_TYPE_ORIG_LEVEL(NODE) \ 5989 (TEMPLATE_PARM_ORIG_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE))) 5990#define TEMPLATE_TYPE_DECL(NODE) \ 5991 (TEMPLATE_PARM_DECL (TEMPLATE_TYPE_PARM_INDEX (NODE))) 5992#define TEMPLATE_TYPE_PARAMETER_PACK(NODE) \ 5993 (TEMPLATE_PARM_PARAMETER_PACK (TEMPLATE_TYPE_PARM_INDEX (NODE))) 5994 5995/* For a C++17 class deduction placeholder, the template it represents. */ 5996#define CLASS_PLACEHOLDER_TEMPLATE(NODE) \ 5997 (DECL_INITIAL (TYPE_NAME (TEMPLATE_TYPE_PARM_CHECK (NODE)))) 5998 5999/* Contexts in which auto deduction occurs. These flags are 6000 used to control diagnostics in do_auto_deduction. */ 6001 6002enum auto_deduction_context 6003{ 6004 adc_unspecified, /* Not given */ 6005 adc_variable_type, /* Variable initializer deduction */ 6006 adc_return_type, /* Return type deduction */ 6007 adc_unify, /* Template argument deduction */ 6008 adc_requirement, /* Argument deduction constraint */ 6009 adc_decomp_type /* Decomposition declaration initializer deduction */ 6010}; 6011 6012/* True iff this TEMPLATE_TYPE_PARM represents decltype(auto). */ 6013#define AUTO_IS_DECLTYPE(NODE) \ 6014 (TYPE_LANG_FLAG_5 (TEMPLATE_TYPE_PARM_CHECK (NODE))) 6015 6016/* These constants can used as bit flags in the process of tree formatting. 6017 6018 TFF_PLAIN_IDENTIFIER: unqualified part of a name. 6019 TFF_SCOPE: include the class and namespace scope of the name. 6020 TFF_CHASE_TYPEDEF: print the original type-id instead of the typedef-name. 6021 TFF_DECL_SPECIFIERS: print decl-specifiers. 6022 TFF_CLASS_KEY_OR_ENUM: precede a class-type name (resp. enum name) with 6023 a class-key (resp. `enum'). 6024 TFF_RETURN_TYPE: include function return type. 6025 TFF_FUNCTION_DEFAULT_ARGUMENTS: include function default parameter values. 6026 TFF_EXCEPTION_SPECIFICATION: show function exception specification. 6027 TFF_TEMPLATE_HEADER: show the template<...> header in a 6028 template-declaration. 6029 TFF_TEMPLATE_NAME: show only template-name. 6030 TFF_EXPR_IN_PARENS: parenthesize expressions. 6031 TFF_NO_FUNCTION_ARGUMENTS: don't show function arguments. 6032 TFF_UNQUALIFIED_NAME: do not print the qualifying scope of the 6033 top-level entity. 6034 TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS: do not omit template arguments 6035 identical to their defaults. 6036 TFF_NO_TEMPLATE_BINDINGS: do not print information about the template 6037 arguments for a function template specialization. 6038 TFF_POINTER: we are printing a pointer type. */ 6039 6040#define TFF_PLAIN_IDENTIFIER (0) 6041#define TFF_SCOPE (1) 6042#define TFF_CHASE_TYPEDEF (1 << 1) 6043#define TFF_DECL_SPECIFIERS (1 << 2) 6044#define TFF_CLASS_KEY_OR_ENUM (1 << 3) 6045#define TFF_RETURN_TYPE (1 << 4) 6046#define TFF_FUNCTION_DEFAULT_ARGUMENTS (1 << 5) 6047#define TFF_EXCEPTION_SPECIFICATION (1 << 6) 6048#define TFF_TEMPLATE_HEADER (1 << 7) 6049#define TFF_TEMPLATE_NAME (1 << 8) 6050#define TFF_EXPR_IN_PARENS (1 << 9) 6051#define TFF_NO_FUNCTION_ARGUMENTS (1 << 10) 6052#define TFF_UNQUALIFIED_NAME (1 << 11) 6053#define TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS (1 << 12) 6054#define TFF_NO_TEMPLATE_BINDINGS (1 << 13) 6055#define TFF_POINTER (1 << 14) 6056 6057/* These constants can be used as bit flags to control strip_typedefs. 6058 6059 STF_USER_VISIBLE: use heuristics to try to avoid stripping user-facing 6060 aliases of internal details. This is intended for diagnostics, 6061 where it should (for example) give more useful "aka" types. 6062 6063 STF_STRIP_DEPENDENT: allow the stripping of aliases with dependent 6064 template parameters, relying on code elsewhere to report any 6065 appropriate diagnostics. */ 6066const unsigned int STF_USER_VISIBLE = 1U; 6067const unsigned int STF_STRIP_DEPENDENT = 1U << 1; 6068 6069/* Returns the TEMPLATE_DECL associated to a TEMPLATE_TEMPLATE_PARM 6070 node. */ 6071#define TEMPLATE_TEMPLATE_PARM_TEMPLATE_DECL(NODE) \ 6072 ((TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM) \ 6073 ? TYPE_TI_TEMPLATE (NODE) \ 6074 : TYPE_NAME (NODE)) 6075 6076/* in lex.cc */ 6077 6078extern void init_reswords (void); 6079 6080/* Various flags for the overloaded operator information. */ 6081enum ovl_op_flags { 6082 OVL_OP_FLAG_NONE = 0, /* Don't care. */ 6083 OVL_OP_FLAG_UNARY = 1, /* Is unary. */ 6084 OVL_OP_FLAG_BINARY = 2, /* Is binary. */ 6085 OVL_OP_FLAG_AMBIARY = 3, /* May be unary or binary. */ 6086 OVL_OP_FLAG_ALLOC = 4, /* operator new or delete. */ 6087 OVL_OP_FLAG_DELETE = 1, /* operator delete. */ 6088 OVL_OP_FLAG_VEC = 2 /* vector new or delete. */ 6089}; 6090 6091/* Compressed operator codes. Order is determined by operators.def 6092 and does not match that of tree_codes. */ 6093enum ovl_op_code { 6094 OVL_OP_ERROR_MARK, 6095 OVL_OP_NOP_EXPR, 6096#define DEF_OPERATOR(NAME, CODE, MANGLING, FLAGS) OVL_OP_##CODE, 6097#define DEF_ASSN_OPERATOR(NAME, CODE, MANGLING) /* NOTHING */ 6098#include "operators.def" 6099 OVL_OP_MAX 6100}; 6101 6102/* Make sure it fits in lang_decl_fn::ovl_op_code. */ 6103STATIC_ASSERT (OVL_OP_MAX < (1 << 6)); 6104 6105struct GTY(()) ovl_op_info_t { 6106 /* The IDENTIFIER_NODE for the operator. */ 6107 tree identifier; 6108 /* The name of the operator. */ 6109 const char *name; 6110 /* The mangled name of the operator. */ 6111 const char *mangled_name; 6112 /* The (regular) tree code. */ 6113 enum tree_code tree_code : 16; 6114 /* The (compressed) operator code. */ 6115 enum ovl_op_code ovl_op_code : 8; 6116 /* The ovl_op_flags of the operator */ 6117 unsigned flags : 8; 6118}; 6119 6120/* Overloaded operator info indexed by ass_op_p & ovl_op_code. */ 6121extern GTY(()) ovl_op_info_t ovl_op_info[2][OVL_OP_MAX]; 6122/* Mapping from tree_codes to ovl_op_codes. */ 6123extern GTY(()) unsigned char ovl_op_mapping[MAX_TREE_CODES]; 6124/* Mapping for ambi-ary operators from the binary to the unary. */ 6125extern GTY(()) unsigned char ovl_op_alternate[OVL_OP_MAX]; 6126 6127/* Given an ass_op_p boolean and a tree code, return a pointer to its 6128 overloaded operator info. Tree codes for non-overloaded operators 6129 map to the error-operator. */ 6130#define OVL_OP_INFO(IS_ASS_P, TREE_CODE) \ 6131 (&ovl_op_info[(IS_ASS_P) != 0][ovl_op_mapping[(TREE_CODE)]]) 6132/* Overloaded operator info for an identifier for which 6133 IDENTIFIER_OVL_OP_P is true. */ 6134#define IDENTIFIER_OVL_OP_INFO(NODE) \ 6135 (&ovl_op_info[IDENTIFIER_KIND_BIT_0 (NODE)][IDENTIFIER_CP_INDEX (NODE)]) 6136#define IDENTIFIER_OVL_OP_FLAGS(NODE) \ 6137 (IDENTIFIER_OVL_OP_INFO (NODE)->flags) 6138 6139inline tree ovl_op_identifier (bool isass, tree_code code) 6140{ return OVL_OP_INFO(isass, code)->identifier; } 6141inline tree ovl_op_identifier (tree_code code) { return ovl_op_identifier (false, code); } 6142#define assign_op_identifier (ovl_op_info[true][OVL_OP_NOP_EXPR].identifier) 6143#define call_op_identifier (ovl_op_info[false][OVL_OP_CALL_EXPR].identifier) 6144 6145/* A type-qualifier, or bitmask therefore, using the TYPE_QUAL 6146 constants. */ 6147 6148typedef int cp_cv_quals; 6149 6150/* Non-static member functions have an optional virt-specifier-seq. 6151 There is a VIRT_SPEC value for each virt-specifier. 6152 They can be combined by bitwise-or to form the complete set of 6153 virt-specifiers for a member function. */ 6154enum virt_specifier 6155 { 6156 VIRT_SPEC_UNSPECIFIED = 0x0, 6157 VIRT_SPEC_FINAL = 0x1, 6158 VIRT_SPEC_OVERRIDE = 0x2 6159 }; 6160 6161/* A type-qualifier, or bitmask therefore, using the VIRT_SPEC 6162 constants. */ 6163 6164typedef int cp_virt_specifiers; 6165 6166/* Wherever there is a function-cv-qual, there could also be a ref-qualifier: 6167 6168 [dcl.fct] 6169 The return type, the parameter-type-list, the ref-qualifier, and 6170 the cv-qualifier-seq, but not the default arguments or the exception 6171 specification, are part of the function type. 6172 6173 REF_QUAL_NONE Ordinary member function with no ref-qualifier 6174 REF_QUAL_LVALUE Member function with the &-ref-qualifier 6175 REF_QUAL_RVALUE Member function with the &&-ref-qualifier */ 6176 6177enum cp_ref_qualifier { 6178 REF_QUAL_NONE = 0, 6179 REF_QUAL_LVALUE = 1, 6180 REF_QUAL_RVALUE = 2 6181}; 6182 6183/* A storage class. */ 6184 6185enum cp_storage_class { 6186 /* sc_none must be zero so that zeroing a cp_decl_specifier_seq 6187 sets the storage_class field to sc_none. */ 6188 sc_none = 0, 6189 sc_auto, 6190 sc_register, 6191 sc_static, 6192 sc_extern, 6193 sc_mutable 6194}; 6195 6196/* An individual decl-specifier. This is used to index the array of 6197 locations for the declspecs in struct cp_decl_specifier_seq 6198 below. */ 6199 6200enum cp_decl_spec { 6201 ds_first, 6202 ds_signed = ds_first, 6203 ds_unsigned, 6204 ds_short, 6205 ds_long, 6206 ds_const, 6207 ds_volatile, 6208 ds_restrict, 6209 ds_inline, 6210 ds_virtual, 6211 ds_explicit, 6212 ds_friend, 6213 ds_typedef, 6214 ds_alias, 6215 ds_constexpr, 6216 ds_complex, 6217 ds_constinit, 6218 ds_consteval, 6219 ds_thread, 6220 ds_type_spec, 6221 ds_redefined_builtin_type_spec, 6222 ds_attribute, 6223 ds_std_attribute, 6224 ds_storage_class, 6225 ds_long_long, 6226 ds_concept, 6227 ds_last /* This enumerator must always be the last one. */ 6228}; 6229 6230/* A decl-specifier-seq. */ 6231 6232struct cp_decl_specifier_seq { 6233 /* An array of locations for the declaration sepecifiers, indexed by 6234 enum cp_decl_spec_word. */ 6235 location_t locations[ds_last]; 6236 /* The primary type, if any, given by the decl-specifier-seq. 6237 Modifiers, like "short", "const", and "unsigned" are not 6238 reflected here. This field will be a TYPE, unless a typedef-name 6239 was used, in which case it will be a TYPE_DECL. */ 6240 tree type; 6241 /* The attributes, if any, provided with the specifier sequence. */ 6242 tree attributes; 6243 /* The c++11 attributes that follows the type specifier. */ 6244 tree std_attributes; 6245 /* If non-NULL, a built-in type that the user attempted to redefine 6246 to some other type. */ 6247 tree redefined_builtin_type; 6248 /* The explicit-specifier, if any. */ 6249 tree explicit_specifier; 6250 /* The storage class specified -- or sc_none if no storage class was 6251 explicitly specified. */ 6252 cp_storage_class storage_class; 6253 /* For the __intN declspec, this stores the index into the int_n_* arrays. */ 6254 int int_n_idx; 6255 /* True iff TYPE_SPEC defines a class or enum. */ 6256 BOOL_BITFIELD type_definition_p : 1; 6257 /* True iff multiple types were (erroneously) specified for this 6258 decl-specifier-seq. */ 6259 BOOL_BITFIELD multiple_types_p : 1; 6260 /* True iff multiple storage classes were (erroneously) specified 6261 for this decl-specifier-seq or a combination of a storage class 6262 with a typedef specifier. */ 6263 BOOL_BITFIELD conflicting_specifiers_p : 1; 6264 /* True iff at least one decl-specifier was found. */ 6265 BOOL_BITFIELD any_specifiers_p : 1; 6266 /* True iff at least one type-specifier was found. */ 6267 BOOL_BITFIELD any_type_specifiers_p : 1; 6268 /* True iff "int" was explicitly provided. */ 6269 BOOL_BITFIELD explicit_int_p : 1; 6270 /* True iff "__intN" was explicitly provided. */ 6271 BOOL_BITFIELD explicit_intN_p : 1; 6272 /* True iff "char" was explicitly provided. */ 6273 BOOL_BITFIELD explicit_char_p : 1; 6274 /* True iff ds_thread is set for __thread, not thread_local. */ 6275 BOOL_BITFIELD gnu_thread_keyword_p : 1; 6276 /* True iff the type is a decltype. */ 6277 BOOL_BITFIELD decltype_p : 1; 6278 /* True iff the alternate "__intN__" form of the __intN type has been 6279 used. */ 6280 BOOL_BITFIELD int_n_alt: 1; 6281}; 6282 6283/* The various kinds of declarators. */ 6284 6285enum cp_declarator_kind { 6286 cdk_id, 6287 cdk_function, 6288 cdk_array, 6289 cdk_pointer, 6290 cdk_reference, 6291 cdk_ptrmem, 6292 cdk_decomp, 6293 cdk_error 6294}; 6295 6296/* A declarator. */ 6297 6298typedef struct cp_declarator cp_declarator; 6299 6300typedef struct cp_parameter_declarator cp_parameter_declarator; 6301 6302/* A parameter, before it has been semantically analyzed. */ 6303struct cp_parameter_declarator { 6304 /* The next parameter, or NULL_TREE if none. */ 6305 cp_parameter_declarator *next; 6306 /* The decl-specifiers-seq for the parameter. */ 6307 cp_decl_specifier_seq decl_specifiers; 6308 /* The declarator for the parameter. */ 6309 cp_declarator *declarator; 6310 /* The default-argument expression, or NULL_TREE, if none. */ 6311 tree default_argument; 6312 /* True iff this is a template parameter pack. */ 6313 bool template_parameter_pack_p; 6314 /* Location within source. */ 6315 location_t loc; 6316}; 6317 6318/* A declarator. */ 6319struct cp_declarator { 6320 /* The kind of declarator. */ 6321 ENUM_BITFIELD (cp_declarator_kind) kind : 4; 6322 /* Whether we parsed an ellipsis (`...') just before the declarator, 6323 to indicate this is a parameter pack. */ 6324 BOOL_BITFIELD parameter_pack_p : 1; 6325 /* If this declarator is parenthesized, this the open-paren. It is 6326 UNKNOWN_LOCATION when not parenthesized. */ 6327 location_t parenthesized; 6328 /* Currently only set for cdk_id, cdk_decomp and cdk_function. */ 6329 location_t id_loc; 6330 /* If this declarator is part of an init-declarator, the location of the 6331 initializer. */ 6332 location_t init_loc; 6333 /* GNU Attributes that apply to this declarator. If the declarator 6334 is a pointer or a reference, these attribute apply to the type 6335 pointed to. */ 6336 tree attributes; 6337 /* Standard C++11 attributes that apply to this declarator. If the 6338 declarator is a pointer or a reference, these attributes apply 6339 to the pointer, rather than to the type pointed to. */ 6340 tree std_attributes; 6341 /* For all but cdk_id, cdk_decomp and cdk_error, the contained declarator. 6342 For cdk_id, cdk_decomp and cdk_error, guaranteed to be NULL. */ 6343 cp_declarator *declarator; 6344 union { 6345 /* For identifiers. */ 6346 struct { 6347 /* If non-NULL, the qualifying scope (a NAMESPACE_DECL or 6348 *_TYPE) for this identifier. */ 6349 tree qualifying_scope; 6350 /* The unqualified name of the entity -- an IDENTIFIER_NODE, 6351 BIT_NOT_EXPR, or TEMPLATE_ID_EXPR. */ 6352 tree unqualified_name; 6353 /* If this is the name of a function, what kind of special 6354 function (if any). */ 6355 special_function_kind sfk; 6356 } id; 6357 /* For functions. */ 6358 struct { 6359 /* The parameters to the function as a TREE_LIST of decl/default. */ 6360 tree parameters; 6361 /* The cv-qualifiers for the function. */ 6362 cp_cv_quals qualifiers; 6363 /* The virt-specifiers for the function. */ 6364 cp_virt_specifiers virt_specifiers; 6365 /* The ref-qualifier for the function. */ 6366 cp_ref_qualifier ref_qualifier; 6367 /* The transaction-safety qualifier for the function. */ 6368 tree tx_qualifier; 6369 /* The exception-specification for the function. */ 6370 tree exception_specification; 6371 /* The late-specified return type, if any. */ 6372 tree late_return_type; 6373 /* The trailing requires-clause, if any. */ 6374 tree requires_clause; 6375 location_t parens_loc; 6376 } function; 6377 /* For arrays. */ 6378 struct { 6379 /* The bounds to the array. */ 6380 tree bounds; 6381 } array; 6382 /* For cdk_pointer and cdk_ptrmem. */ 6383 struct { 6384 /* The cv-qualifiers for the pointer. */ 6385 cp_cv_quals qualifiers; 6386 /* For cdk_ptrmem, the class type containing the member. */ 6387 tree class_type; 6388 } pointer; 6389 /* For cdk_reference */ 6390 struct { 6391 /* The cv-qualifiers for the reference. These qualifiers are 6392 only used to diagnose ill-formed code. */ 6393 cp_cv_quals qualifiers; 6394 /* Whether this is an rvalue reference */ 6395 bool rvalue_ref; 6396 } reference; 6397 } u; 6398}; 6399 6400/* A level of template instantiation. */ 6401struct GTY((chain_next ("%h.next"))) tinst_level { 6402 /* The immediately deeper level in the chain. */ 6403 struct tinst_level *next; 6404 6405 /* The original node. TLDCL can be a DECL (for a function or static 6406 data member), a TYPE (for a class), depending on what we were 6407 asked to instantiate, or a TREE_LIST with the template as PURPOSE 6408 and the template args as VALUE, if we are substituting for 6409 overload resolution. In all these cases, TARGS is NULL. 6410 However, to avoid creating TREE_LIST objects for substitutions if 6411 we can help, we store PURPOSE and VALUE in TLDCL and TARGS, 6412 respectively. So TLDCL stands for TREE_LIST or DECL (the 6413 template is a DECL too), whereas TARGS stands for the template 6414 arguments. */ 6415 tree tldcl, targs; 6416 6417 /* For modules we need to know (a) the modules on the path of 6418 instantiation and (b) the transitive imports along that path. 6419 Note that these two bitmaps may be inherited from NEXT, if this 6420 decl is in the same module as NEXT (or has no new information). */ 6421 bitmap path; 6422 bitmap visible; 6423 6424 private: 6425 /* Return TRUE iff the original node is a split list. */ 6426 bool split_list_p () const { return targs; } 6427 6428 /* Return TRUE iff the original node is a TREE_LIST object. */ 6429 bool tree_list_p () const 6430 { 6431 return !split_list_p () && TREE_CODE (tldcl) == TREE_LIST; 6432 } 6433 6434 /* Return TRUE iff the original node is not a list, split or not. */ 6435 bool not_list_p () const 6436 { 6437 return !split_list_p () && !tree_list_p (); 6438 } 6439 6440 /* Convert (in place) the original node from a split list to a 6441 TREE_LIST. */ 6442 tree to_list (); 6443 6444 public: 6445 /* Release storage for OBJ and node, if it's a TREE_LIST. */ 6446 static void free (tinst_level *obj); 6447 6448 /* Return TRUE iff the original node is a list, split or not. */ 6449 bool list_p () const { return !not_list_p (); } 6450 6451 /* Return the original node; if it's a split list, make it a 6452 TREE_LIST first, so that it can be returned as a single tree 6453 object. */ 6454 tree get_node () { 6455 if (!split_list_p ()) return tldcl; 6456 else return to_list (); 6457 } 6458 6459 /* Return the original node if it's a DECL or a TREE_LIST, but do 6460 NOT convert a split list to a TREE_LIST: return NULL instead. */ 6461 tree maybe_get_node () const { 6462 if (!split_list_p ()) return tldcl; 6463 else return NULL_TREE; 6464 } 6465 6466 /* The location where the template is instantiated. */ 6467 location_t locus; 6468 6469 /* errorcount + sorrycount when we pushed this level. */ 6470 unsigned short errors; 6471 6472 /* Count references to this object. If refcount reaches 6473 refcount_infinity value, we don't increment or decrement the 6474 refcount anymore, as the refcount isn't accurate anymore. 6475 The object can be still garbage collected if unreferenced from 6476 anywhere, which might keep referenced objects referenced longer than 6477 otherwise necessary. Hitting the infinity is rare though. */ 6478 unsigned short refcount; 6479 6480 /* Infinity value for the above refcount. */ 6481 static const unsigned short refcount_infinity = (unsigned short) ~0; 6482}; 6483 6484/* BUILT_IN_FRONTEND function codes. */ 6485enum cp_built_in_function { 6486 CP_BUILT_IN_IS_CONSTANT_EVALUATED, 6487 CP_BUILT_IN_INTEGER_PACK, 6488 CP_BUILT_IN_IS_CORRESPONDING_MEMBER, 6489 CP_BUILT_IN_IS_POINTER_INTERCONVERTIBLE_WITH_CLASS, 6490 CP_BUILT_IN_SOURCE_LOCATION, 6491 CP_BUILT_IN_LAST 6492}; 6493 6494bool decl_spec_seq_has_spec_p (const cp_decl_specifier_seq *, cp_decl_spec); 6495 6496/* Return the type of the `this' parameter of FNTYPE. */ 6497 6498inline tree 6499type_of_this_parm (const_tree fntype) 6500{ 6501 function_args_iterator iter; 6502 gcc_assert (TREE_CODE (fntype) == METHOD_TYPE); 6503 function_args_iter_init (&iter, fntype); 6504 return function_args_iter_cond (&iter); 6505} 6506 6507/* Return the class of the `this' parameter of FNTYPE. */ 6508 6509inline tree 6510class_of_this_parm (const_tree fntype) 6511{ 6512 return TREE_TYPE (type_of_this_parm (fntype)); 6513} 6514 6515/* A parameter list indicating for a function with no parameters, 6516 e.g "int f(void)". */ 6517extern cp_parameter_declarator *no_parameters; 6518 6519/* Various dump ids. */ 6520extern int class_dump_id; 6521extern int module_dump_id; 6522extern int raw_dump_id; 6523 6524/* in call.cc */ 6525extern bool check_dtor_name (tree, tree); 6526int magic_varargs_p (tree); 6527 6528extern tree build_conditional_expr (const op_location_t &, 6529 tree, tree, tree, 6530 tsubst_flags_t); 6531extern tree build_addr_func (tree, tsubst_flags_t); 6532extern void set_flags_from_callee (tree); 6533extern tree build_call_a (tree, int, tree*); 6534extern tree build_call_n (tree, int, ...); 6535extern bool null_ptr_cst_p (tree); 6536extern bool null_member_pointer_value_p (tree); 6537extern bool sufficient_parms_p (const_tree); 6538extern tree type_decays_to (tree); 6539extern tree extract_call_expr (tree); 6540extern tree build_trivial_dtor_call (tree, bool = false); 6541extern bool ref_conv_binds_directly_p (tree, tree); 6542extern tree build_user_type_conversion (tree, tree, int, 6543 tsubst_flags_t); 6544extern tree build_new_function_call (tree, vec<tree, va_gc> **, 6545 tsubst_flags_t); 6546extern tree build_operator_new_call (tree, vec<tree, va_gc> **, 6547 tree *, tree *, tree, tree, 6548 tree *, tsubst_flags_t); 6549extern tree build_new_method_call (tree, tree, 6550 vec<tree, va_gc> **, tree, 6551 int, tree *, tsubst_flags_t); 6552extern tree build_special_member_call (tree, tree, 6553 vec<tree, va_gc> **, 6554 tree, int, tsubst_flags_t); 6555extern tree build_new_op (const op_location_t &, 6556 enum tree_code, 6557 int, tree, tree, tree, tree, 6558 tree *, tsubst_flags_t); 6559/* Wrapper that leaves out the usually-null op3 and overload parms. */ 6560inline tree build_new_op (const op_location_t &loc, enum tree_code code, 6561 int flags, tree arg1, tree arg2, 6562 tsubst_flags_t complain) 6563{ 6564 return build_new_op (loc, code, flags, arg1, arg2, NULL_TREE, NULL_TREE, 6565 NULL, complain); 6566} 6567extern tree build_op_call (tree, vec<tree, va_gc> **, 6568 tsubst_flags_t); 6569extern tree build_op_subscript (const op_location_t &, tree, 6570 vec<tree, va_gc> **, tree *, 6571 tsubst_flags_t); 6572extern bool aligned_allocation_fn_p (tree); 6573extern tree destroying_delete_p (tree); 6574extern bool usual_deallocation_fn_p (tree); 6575extern tree build_op_delete_call (enum tree_code, tree, tree, 6576 bool, tree, tree, 6577 tsubst_flags_t); 6578extern bool can_convert (tree, tree, tsubst_flags_t); 6579extern bool can_convert_standard (tree, tree, tsubst_flags_t); 6580extern bool can_convert_arg (tree, tree, tree, int, 6581 tsubst_flags_t); 6582extern bool can_convert_arg_bad (tree, tree, tree, int, 6583 tsubst_flags_t); 6584extern int conv_flags (int, int, tree, tree, int); 6585extern struct conversion * good_conversion (tree, tree, tree, int, tsubst_flags_t); 6586extern location_t get_fndecl_argument_location (tree, int); 6587extern void complain_about_bad_argument (location_t arg_loc, 6588 tree from_type, tree to_type, 6589 tree fndecl, int parmnum); 6590extern void maybe_inform_about_fndecl_for_bogus_argument_init (tree, int); 6591extern tree perform_dguide_overload_resolution (tree, const vec<tree, va_gc> *, 6592 tsubst_flags_t); 6593 6594 6595/* A class for recording information about access failures (e.g. private 6596 fields), so that we can potentially supply a fix-it hint about 6597 an accessor (from a context in which the constness of the object 6598 is known). */ 6599 6600class access_failure_info 6601{ 6602 public: 6603 access_failure_info () : m_was_inaccessible (false), 6604 m_basetype_path (NULL_TREE), 6605 m_decl (NULL_TREE), m_diag_decl (NULL_TREE) {} 6606 6607 void record_access_failure (tree basetype_path, tree decl, tree diag_decl); 6608 6609 bool was_inaccessible_p () const { return m_was_inaccessible; } 6610 tree get_decl () const { return m_decl; } 6611 tree get_diag_decl () const { return m_diag_decl; } 6612 tree get_any_accessor (bool const_p) const; 6613 void maybe_suggest_accessor (bool const_p) const; 6614 static void add_fixit_hint (rich_location *richloc, tree accessor); 6615 6616 private: 6617 bool m_was_inaccessible; 6618 tree m_basetype_path; 6619 tree m_decl; 6620 tree m_diag_decl; 6621}; 6622 6623extern void complain_about_access (tree, tree, tree, bool, 6624 access_kind); 6625extern void push_defarg_context (tree); 6626extern void pop_defarg_context (void); 6627extern tree convert_default_arg (tree, tree, tree, int, 6628 tsubst_flags_t); 6629extern tree convert_arg_to_ellipsis (tree, tsubst_flags_t); 6630extern tree build_x_va_arg (location_t, tree, tree); 6631extern tree cxx_type_promotes_to (tree); 6632extern tree type_passed_as (tree); 6633extern tree convert_for_arg_passing (tree, tree, tsubst_flags_t); 6634extern bool is_properly_derived_from (tree, tree); 6635extern tree initialize_reference (tree, tree, int, 6636 tsubst_flags_t); 6637extern tree extend_ref_init_temps (tree, tree, 6638 vec<tree, va_gc>**, 6639 tree * = NULL); 6640extern tree make_temporary_var_for_ref_to_temp (tree, tree); 6641extern bool type_has_extended_temps (tree); 6642extern tree strip_top_quals (tree); 6643extern bool reference_related_p (tree, tree); 6644extern bool reference_compatible_p (tree, tree); 6645extern int remaining_arguments (tree); 6646extern tree build_implicit_conv_flags (tree, tree, int); 6647extern tree perform_implicit_conversion (tree, tree, tsubst_flags_t); 6648extern tree perform_implicit_conversion_flags (tree, tree, tsubst_flags_t, int); 6649extern tree build_converted_constant_expr (tree, tree, tsubst_flags_t); 6650extern tree build_converted_constant_bool_expr (tree, tsubst_flags_t); 6651extern tree perform_direct_initialization_if_possible (tree, tree, bool, 6652 tsubst_flags_t); 6653extern vec<tree,va_gc> *resolve_args (vec<tree,va_gc>*, tsubst_flags_t); 6654extern tree in_charge_arg_for_name (tree); 6655extern bool in_immediate_context (); 6656extern tree build_cxx_call (tree, int, tree *, 6657 tsubst_flags_t, 6658 tree = NULL_TREE); 6659extern bool is_std_init_list (tree); 6660extern bool is_list_ctor (tree); 6661extern void validate_conversion_obstack (void); 6662extern void mark_versions_used (tree); 6663extern int unsafe_return_slot_p (tree); 6664extern bool make_safe_copy_elision (tree, tree); 6665extern bool cp_handle_deprecated_or_unavailable (tree, tsubst_flags_t = tf_warning_or_error); 6666extern void cp_warn_deprecated_use_scopes (tree); 6667extern tree get_function_version_dispatcher (tree); 6668 6669/* in class.cc */ 6670extern tree build_vfield_ref (tree, tree); 6671extern tree build_if_in_charge (tree true_stmt, tree false_stmt = void_node); 6672extern tree build_base_path (enum tree_code, tree, 6673 tree, int, tsubst_flags_t); 6674extern tree convert_to_base (tree, tree, bool, bool, 6675 tsubst_flags_t); 6676extern tree convert_to_base_statically (tree, tree); 6677extern bool is_empty_base_ref (tree); 6678extern tree build_vtbl_ref (tree, tree); 6679extern tree build_vfn_ref (tree, tree); 6680extern tree get_vtable_decl (tree, int); 6681extern bool add_method (tree, tree, bool); 6682extern tree declared_access (tree); 6683extern bool maybe_push_used_methods (tree); 6684extern tree currently_open_class (tree); 6685extern tree currently_open_derived_class (tree); 6686extern tree outermost_open_class (void); 6687extern tree current_nonlambda_class_type (void); 6688extern tree finish_struct (tree, tree); 6689extern void finish_struct_1 (tree); 6690extern int resolves_to_fixed_type_p (tree, int * = NULL); 6691extern void init_class_processing (void); 6692extern int is_empty_class (tree); 6693extern bool is_really_empty_class (tree, bool); 6694extern void pushclass (tree); 6695extern void popclass (void); 6696extern void push_nested_class (tree); 6697extern void pop_nested_class (void); 6698extern int current_lang_depth (void); 6699extern void push_lang_context (tree); 6700extern void pop_lang_context (void); 6701extern tree instantiate_type (tree, tree, tsubst_flags_t); 6702extern void build_self_reference (void); 6703extern int same_signature_p (const_tree, const_tree); 6704extern tree lookup_vfn_in_binfo (tree, tree); 6705extern void maybe_add_class_template_decl_list (tree, tree, int); 6706extern void unreverse_member_declarations (tree); 6707extern bool is_empty_field (tree); 6708extern void invalidate_class_lookup_cache (void); 6709extern void maybe_note_name_used_in_class (tree, tree); 6710extern void note_name_declared_in_class (tree, tree); 6711extern tree get_vtbl_decl_for_binfo (tree); 6712extern bool vptr_via_virtual_p (tree); 6713extern void debug_class (tree); 6714extern void debug_thunks (tree); 6715extern void set_linkage_according_to_type (tree, tree); 6716extern void determine_key_method (tree); 6717extern void check_for_override (tree, tree); 6718extern void push_class_stack (void); 6719extern void pop_class_stack (void); 6720extern bool default_ctor_p (const_tree); 6721extern bool type_has_user_nondefault_constructor (tree); 6722extern tree in_class_defaulted_default_constructor (tree); 6723extern bool user_provided_p (tree); 6724extern bool type_has_user_provided_constructor (tree); 6725extern bool type_has_non_user_provided_default_constructor (tree); 6726extern bool vbase_has_user_provided_move_assign (tree); 6727extern tree default_init_uninitialized_part (tree); 6728extern bool trivial_default_constructor_is_constexpr (tree); 6729extern bool type_has_constexpr_default_constructor (tree); 6730extern bool type_has_constexpr_destructor (tree); 6731extern bool type_has_virtual_destructor (tree); 6732extern bool classtype_has_move_assign_or_move_ctor_p (tree, bool user_declared); 6733extern bool classtype_has_non_deleted_move_ctor (tree); 6734extern tree classtype_has_depr_implicit_copy (tree); 6735extern bool classtype_has_op (tree, tree_code); 6736extern tree classtype_has_defaulted_op (tree, tree_code); 6737extern bool type_build_ctor_call (tree); 6738extern bool type_build_dtor_call (tree); 6739extern void explain_non_literal_class (tree); 6740extern void inherit_targ_abi_tags (tree); 6741extern void defaulted_late_check (tree); 6742extern bool defaultable_fn_check (tree); 6743extern void check_abi_tags (tree); 6744extern tree missing_abi_tags (tree); 6745extern void fixup_type_variants (tree); 6746extern void fixup_attribute_variants (tree); 6747extern void build_cdtor_clones (tree, bool, bool, bool); 6748extern void clone_cdtor (tree, bool); 6749extern tree copy_operator_fn (tree, tree_code code); 6750extern void adjust_clone_args (tree); 6751extern void deduce_noexcept_on_destructor (tree); 6752extern bool uniquely_derived_from_p (tree, tree); 6753extern bool publicly_uniquely_derived_p (tree, tree); 6754extern tree common_enclosing_class (tree, tree); 6755 6756/* in cvt.cc */ 6757extern tree convert_to_reference (tree, tree, int, int, tree, 6758 tsubst_flags_t); 6759extern tree convert_from_reference (tree); 6760extern tree force_rvalue (tree, tsubst_flags_t); 6761extern tree ocp_convert (tree, tree, int, int, 6762 tsubst_flags_t); 6763extern tree cp_convert (tree, tree, tsubst_flags_t); 6764extern tree cp_convert_and_check (tree, tree, tsubst_flags_t); 6765extern tree cp_fold_convert (tree, tree); 6766extern tree cp_get_callee (tree); 6767extern tree cp_get_callee_fndecl (tree); 6768extern tree cp_get_callee_fndecl_nofold (tree); 6769extern tree cp_get_fndecl_from_callee (tree, bool fold = true); 6770extern tree convert_to_void (tree, impl_conv_void, 6771 tsubst_flags_t); 6772extern tree convert_force (tree, tree, int, 6773 tsubst_flags_t); 6774extern tree build_expr_type_conversion (int, tree, bool); 6775extern tree type_promotes_to (tree); 6776extern bool can_convert_qual (tree, tree); 6777extern tree perform_qualification_conversions (tree, tree); 6778extern bool tx_safe_fn_type_p (tree); 6779extern tree tx_unsafe_fn_variant (tree); 6780extern bool fnptr_conv_p (tree, tree); 6781extern tree strip_fnptr_conv (tree); 6782 6783/* in name-lookup.cc */ 6784extern void maybe_push_cleanup_level (tree); 6785extern tree maybe_push_decl (tree); 6786extern tree current_decl_namespace (void); 6787 6788/* decl.cc */ 6789extern tree poplevel (int, int, int); 6790extern void cxx_init_decl_processing (void); 6791enum cp_tree_node_structure_enum cp_tree_node_structure 6792 (union lang_tree_node *); 6793extern void finish_scope (void); 6794extern void push_switch (tree); 6795extern void pop_switch (void); 6796extern void note_break_stmt (void); 6797extern bool note_iteration_stmt_body_start (void); 6798extern void note_iteration_stmt_body_end (bool); 6799extern void determine_local_discriminator (tree); 6800extern int decls_match (tree, tree, bool = true); 6801extern bool maybe_version_functions (tree, tree, bool); 6802extern bool merge_default_template_args (tree, tree, bool); 6803extern tree duplicate_decls (tree, tree, 6804 bool hiding = false, 6805 bool was_hidden = false); 6806extern tree declare_local_label (tree); 6807extern tree define_label (location_t, tree); 6808extern void check_goto (tree); 6809extern bool check_omp_return (void); 6810extern tree make_typename_type (tree, tree, enum tag_types, tsubst_flags_t); 6811extern tree build_typename_type (tree, tree, tree, tag_types); 6812extern tree make_unbound_class_template (tree, tree, tree, tsubst_flags_t); 6813extern tree make_unbound_class_template_raw (tree, tree, tree); 6814extern unsigned push_abi_namespace (tree node = abi_node); 6815extern void pop_abi_namespace (unsigned flags, 6816 tree node = abi_node); 6817extern tree build_library_fn_ptr (const char *, tree, int); 6818extern tree build_cp_library_fn_ptr (const char *, tree, int); 6819extern tree push_library_fn (tree, tree, tree, int); 6820extern tree push_throw_library_fn (tree, tree); 6821extern void warn_misplaced_attr_for_class_type (location_t location, 6822 tree class_type); 6823extern tree check_tag_decl (cp_decl_specifier_seq *, bool); 6824extern tree shadow_tag (cp_decl_specifier_seq *); 6825extern tree groktypename (cp_decl_specifier_seq *, const cp_declarator *, bool); 6826extern tree start_decl (const cp_declarator *, cp_decl_specifier_seq *, int, tree, tree, tree *); 6827extern void start_decl_1 (tree, bool); 6828extern bool check_array_initializer (tree, tree, tree); 6829extern void omp_declare_variant_finalize (tree, tree); 6830extern void cp_finish_decl (tree, tree, bool, tree, int); 6831extern tree lookup_decomp_type (tree); 6832extern void cp_maybe_mangle_decomp (tree, tree, unsigned int); 6833extern void cp_finish_decomp (tree, tree, unsigned int); 6834extern int cp_complete_array_type (tree *, tree, bool); 6835extern int cp_complete_array_type_or_error (tree *, tree, bool, tsubst_flags_t); 6836extern tree build_ptrmemfunc_type (tree); 6837extern tree build_ptrmem_type (tree, tree); 6838/* the grokdeclarator prototype is in decl.h */ 6839extern tree build_this_parm (tree, tree, cp_cv_quals); 6840extern tree grokparms (tree, tree *); 6841extern int copy_fn_p (const_tree); 6842extern bool move_fn_p (const_tree); 6843extern bool move_signature_fn_p (const_tree); 6844extern tree get_scope_of_declarator (const cp_declarator *); 6845extern void grok_special_member_properties (tree); 6846extern bool grok_ctor_properties (const_tree, const_tree); 6847extern bool grok_op_properties (tree, bool); 6848extern tree xref_tag (tag_types, tree, 6849 TAG_how = TAG_how::CURRENT_ONLY, 6850 bool tpl_header_p = false); 6851extern void xref_basetypes (tree, tree); 6852extern tree start_enum (tree, tree, tree, tree, bool, bool *); 6853extern void finish_enum_value_list (tree); 6854extern void finish_enum (tree); 6855extern tree build_enumerator (tree, tree, tree, tree, location_t); 6856extern tree lookup_enumerator (tree, tree); 6857extern bool start_preparsed_function (tree, tree, int); 6858extern bool start_function (cp_decl_specifier_seq *, 6859 const cp_declarator *, tree); 6860extern tree begin_function_body (void); 6861extern void finish_function_body (tree); 6862extern tree outer_curly_brace_block (tree); 6863extern tree finish_function (bool); 6864extern tree grokmethod (cp_decl_specifier_seq *, const cp_declarator *, tree); 6865extern void maybe_register_incomplete_var (tree); 6866extern void maybe_commonize_var (tree); 6867extern void complete_vars (tree); 6868extern tree static_fn_type (tree); 6869extern void revert_static_member_fn (tree); 6870extern void fixup_anonymous_aggr (tree); 6871extern tree compute_array_index_type (tree, tree, tsubst_flags_t); 6872extern tree check_default_argument (tree, tree, tsubst_flags_t); 6873extern int wrapup_namespace_globals (); 6874extern tree create_implicit_typedef (tree, tree); 6875extern int local_variable_p (const_tree); 6876extern tree register_dtor_fn (tree); 6877extern tmpl_spec_kind current_tmpl_spec_kind (int); 6878extern tree cxx_builtin_function (tree decl); 6879extern tree cxx_builtin_function_ext_scope (tree decl); 6880extern tree cxx_simulate_builtin_function_decl (tree); 6881extern tree check_elaborated_type_specifier (enum tag_types, tree, bool); 6882extern void warn_extern_redeclared_static (tree, tree); 6883extern tree cxx_comdat_group (tree); 6884extern bool cp_missing_noreturn_ok_p (tree); 6885extern bool is_direct_enum_init (tree, tree); 6886extern void initialize_artificial_var (tree, vec<constructor_elt, va_gc> *); 6887extern tree check_var_type (tree, tree, location_t); 6888extern tree reshape_init (tree, tree, tsubst_flags_t); 6889extern tree next_initializable_field (tree); 6890extern tree next_subobject_field (tree); 6891extern tree first_field (const_tree); 6892extern tree fndecl_declared_return_type (tree); 6893extern bool undeduced_auto_decl (tree); 6894extern bool require_deduced_type (tree, tsubst_flags_t = tf_warning_or_error); 6895 6896extern tree finish_case_label (location_t, tree, tree); 6897extern tree cxx_maybe_build_cleanup (tree, tsubst_flags_t); 6898extern bool check_array_designated_initializer (constructor_elt *, 6899 unsigned HOST_WIDE_INT); 6900extern bool check_for_uninitialized_const_var (tree, bool, tsubst_flags_t); 6901extern tree build_explicit_specifier (tree, tsubst_flags_t); 6902extern void do_push_parm_decls (tree, tree, tree *); 6903extern tree do_aggregate_paren_init (tree, tree); 6904 6905/* in decl2.cc */ 6906extern void record_mangling (tree, bool); 6907extern void overwrite_mangling (tree, tree); 6908extern void note_mangling_alias (tree, tree); 6909extern void generate_mangling_aliases (void); 6910extern tree build_memfn_type (tree, tree, cp_cv_quals, cp_ref_qualifier); 6911extern tree build_pointer_ptrmemfn_type (tree); 6912extern tree change_return_type (tree, tree); 6913extern void maybe_retrofit_in_chrg (tree); 6914extern void maybe_make_one_only (tree); 6915extern bool vague_linkage_p (tree); 6916extern void grokclassfn (tree, tree, 6917 enum overload_flags); 6918extern tree grok_array_decl (location_t, tree, tree, 6919 vec<tree, va_gc> **, tsubst_flags_t); 6920extern tree delete_sanity (location_t, tree, tree, bool, 6921 int, tsubst_flags_t); 6922extern tree check_classfn (tree, tree, tree); 6923extern void check_member_template (tree); 6924extern tree grokfield (const cp_declarator *, cp_decl_specifier_seq *, 6925 tree, bool, tree, tree); 6926extern tree grokbitfield (const cp_declarator *, cp_decl_specifier_seq *, 6927 tree, tree, tree); 6928extern tree splice_template_attributes (tree *, tree); 6929extern bool any_dependent_type_attributes_p (tree); 6930extern tree cp_reconstruct_complex_type (tree, tree); 6931extern bool attributes_naming_typedef_ok (tree); 6932extern void cplus_decl_attributes (tree *, tree, int); 6933extern void finish_anon_union (tree); 6934extern void cxx_post_compilation_parsing_cleanups (void); 6935extern tree coerce_new_type (tree, location_t); 6936extern void coerce_delete_type (tree, location_t); 6937extern void comdat_linkage (tree); 6938extern void determine_visibility (tree); 6939extern void constrain_class_visibility (tree); 6940extern void reset_type_linkage (tree); 6941extern void tentative_decl_linkage (tree); 6942extern void import_export_decl (tree); 6943extern tree build_cleanup (tree); 6944extern tree build_offset_ref_call_from_tree (tree, vec<tree, va_gc> **, 6945 tsubst_flags_t); 6946extern bool decl_defined_p (tree); 6947extern bool decl_constant_var_p (tree); 6948extern bool decl_maybe_constant_var_p (tree); 6949extern void no_linkage_error (tree); 6950extern void check_default_args (tree); 6951extern bool mark_used (tree); 6952extern bool mark_used (tree, tsubst_flags_t); 6953extern bool mark_single_function (tree, tsubst_flags_t); 6954extern void finish_static_data_member_decl (tree, tree, bool, tree, int); 6955extern tree cp_build_parm_decl (tree, tree, tree); 6956extern void copy_linkage (tree, tree); 6957extern tree get_guard (tree); 6958extern tree get_guard_cond (tree, bool); 6959extern tree set_guard (tree); 6960extern bool var_needs_tls_wrapper (tree); 6961extern tree maybe_get_tls_wrapper_call (tree); 6962extern void mark_needed (tree); 6963extern bool decl_needed_p (tree); 6964extern void note_vague_linkage_fn (tree); 6965extern void note_variable_template_instantiation (tree); 6966extern tree build_artificial_parm (tree, tree, tree); 6967extern bool possibly_inlined_p (tree); 6968extern int parm_index (tree); 6969extern tree vtv_start_verification_constructor_init_function (void); 6970extern tree vtv_finish_verification_constructor_init_function (tree); 6971extern bool cp_omp_mappable_type (tree); 6972extern bool cp_omp_emit_unmappable_type_notes (tree); 6973extern void cp_check_const_attributes (tree); 6974 6975/* in error.cc */ 6976extern const char *type_as_string (tree, int); 6977extern const char *type_as_string_translate (tree, int); 6978extern const char *decl_as_string (tree, int); 6979extern const char *decl_as_string_translate (tree, int); 6980extern const char *decl_as_dwarf_string (tree, int); 6981extern const char *expr_as_string (tree, int); 6982extern const char *expr_to_string (tree); 6983extern const char *lang_decl_name (tree, int, bool); 6984extern const char *lang_decl_dwarf_name (tree, int, bool); 6985extern const char *language_to_string (enum languages); 6986extern const char *class_key_or_enum_as_string (tree); 6987extern void maybe_warn_variadic_templates (void); 6988extern void maybe_warn_cpp0x (cpp0x_warn_str str, 6989 location_t = input_location); 6990extern bool pedwarn_cxx98 (location_t, int, const char *, ...) ATTRIBUTE_GCC_DIAG(3,4); 6991extern location_t location_of (tree); 6992extern void qualified_name_lookup_error (tree, tree, tree, 6993 location_t); 6994 6995/* in except.cc */ 6996extern void init_exception_processing (void); 6997extern tree expand_start_catch_block (tree); 6998extern void expand_end_catch_block (void); 6999extern tree build_exc_ptr (void); 7000extern tree build_throw (location_t, tree); 7001extern int nothrow_libfn_p (const_tree); 7002extern void check_handlers (tree); 7003extern tree finish_noexcept_expr (tree, tsubst_flags_t); 7004extern bool expr_noexcept_p (tree, tsubst_flags_t); 7005extern void perform_deferred_noexcept_checks (void); 7006extern bool nothrow_spec_p (const_tree); 7007extern bool type_noexcept_p (const_tree); 7008extern bool type_throw_all_p (const_tree); 7009extern tree build_noexcept_spec (tree, tsubst_flags_t); 7010extern void choose_personality_routine (enum languages); 7011extern tree build_must_not_throw_expr (tree,tree); 7012extern tree eh_type_info (tree); 7013extern tree begin_eh_spec_block (void); 7014extern void finish_eh_spec_block (tree, tree); 7015extern tree build_eh_type_type (tree); 7016extern tree cp_protect_cleanup_actions (void); 7017extern void maybe_splice_retval_cleanup (tree); 7018extern tree maybe_set_retval_sentinel (void); 7019 7020extern tree template_parms_to_args (tree); 7021extern tree template_parms_level_to_args (tree); 7022extern tree generic_targs_for (tree); 7023extern tree outer_template_args (tree); 7024 7025/* in expr.cc */ 7026extern tree cplus_expand_constant (tree); 7027extern tree mark_use (tree expr, bool rvalue_p, bool read_p, 7028 location_t = UNKNOWN_LOCATION, 7029 bool reject_builtin = true); 7030extern tree mark_rvalue_use (tree, 7031 location_t = UNKNOWN_LOCATION, 7032 bool reject_builtin = true); 7033extern tree mark_lvalue_use (tree); 7034extern tree mark_lvalue_use_nonread (tree); 7035extern tree mark_type_use (tree); 7036extern tree mark_discarded_use (tree); 7037extern void mark_exp_read (tree); 7038 7039/* friend.cc */ 7040extern int is_friend (tree, tree); 7041extern void make_friend_class (tree, tree, bool); 7042extern void add_friend (tree, tree, bool); 7043extern tree do_friend (tree, tree, tree, 7044 enum overload_flags, bool); 7045 7046extern void set_global_friend (tree); 7047extern bool is_global_friend (tree); 7048 7049/* in init.cc */ 7050extern tree expand_member_init (tree); 7051extern void emit_mem_initializers (tree); 7052extern tree build_aggr_init (tree, tree, int, 7053 tsubst_flags_t); 7054extern int is_class_type (tree, int); 7055extern bool is_copy_initialization (tree); 7056extern tree build_zero_init (tree, tree, bool); 7057extern tree build_value_init (tree, tsubst_flags_t); 7058extern tree build_value_init_noctor (tree, tsubst_flags_t); 7059extern tree maybe_instantiate_nsdmi_init (tree, tsubst_flags_t); 7060extern tree get_nsdmi (tree, bool, tsubst_flags_t); 7061extern tree build_offset_ref (tree, tree, bool, 7062 tsubst_flags_t); 7063extern tree throw_bad_array_new_length (void); 7064extern bool type_has_new_extended_alignment (tree); 7065extern unsigned malloc_alignment (void); 7066extern tree build_new_constexpr_heap_type (tree, tree, tree); 7067extern tree build_new (location_t, 7068 vec<tree, va_gc> **, tree, 7069 tree, vec<tree, va_gc> **, 7070 int, tsubst_flags_t); 7071extern tree get_temp_regvar (tree, tree); 7072extern tree build_vec_init (tree, tree, tree, bool, int, 7073 tsubst_flags_t, 7074 vec<tree, va_gc> ** = nullptr); 7075extern tree build_delete (location_t, tree, tree, 7076 special_function_kind, 7077 int, int, tsubst_flags_t); 7078extern void push_base_cleanups (void); 7079extern tree build_vec_delete (location_t, tree, tree, 7080 special_function_kind, int, 7081 tsubst_flags_t); 7082extern tree create_temporary_var (tree); 7083extern void initialize_vtbl_ptrs (tree); 7084extern tree scalar_constant_value (tree); 7085extern tree decl_constant_value (tree, bool); 7086extern tree decl_really_constant_value (tree, bool = true); 7087extern int diagnose_uninitialized_cst_or_ref_member (tree, bool, bool); 7088extern tree build_vtbl_address (tree); 7089extern bool maybe_reject_flexarray_init (tree, tree); 7090 7091/* in lex.cc */ 7092extern void cxx_dup_lang_specific_decl (tree); 7093extern tree unqualified_name_lookup_error (tree, 7094 location_t = UNKNOWN_LOCATION); 7095extern tree unqualified_fn_lookup_error (cp_expr); 7096extern tree make_conv_op_name (tree); 7097extern tree build_lang_decl (enum tree_code, tree, tree); 7098extern tree build_lang_decl_loc (location_t, enum tree_code, tree, tree); 7099extern bool maybe_add_lang_decl_raw (tree, bool decomp_p); 7100extern bool maybe_add_lang_type_raw (tree); 7101extern void retrofit_lang_decl (tree); 7102extern void fit_decomposition_lang_decl (tree, tree); 7103extern tree copy_decl (tree CXX_MEM_STAT_INFO); 7104extern tree copy_type (tree CXX_MEM_STAT_INFO); 7105extern tree cxx_make_type (enum tree_code CXX_MEM_STAT_INFO); 7106extern tree make_class_type (enum tree_code CXX_MEM_STAT_INFO); 7107extern const char *get_identifier_kind_name (tree); 7108extern void set_identifier_kind (tree, cp_identifier_kind); 7109extern bool cxx_init (void); 7110extern void cxx_finish (void); 7111extern bool in_main_input_context (void); 7112extern uintptr_t module_token_pre (cpp_reader *, const cpp_token *, uintptr_t); 7113extern uintptr_t module_token_cdtor (cpp_reader *, uintptr_t); 7114extern uintptr_t module_token_lang (int type, int keyword, tree value, 7115 location_t, uintptr_t); 7116 7117/* in method.cc */ 7118extern void init_method (void); 7119extern tree make_thunk (tree, bool, tree, tree); 7120extern void finish_thunk (tree); 7121extern void use_thunk (tree, bool); 7122extern bool trivial_fn_p (tree); 7123extern tree forward_parm (tree); 7124extern bool is_trivially_xible (enum tree_code, tree, tree); 7125extern bool is_nothrow_xible (enum tree_code, tree, tree); 7126extern bool is_xible (enum tree_code, tree, tree); 7127extern tree get_defaulted_eh_spec (tree, tsubst_flags_t = tf_warning_or_error); 7128extern bool maybe_explain_implicit_delete (tree); 7129extern void explain_implicit_non_constexpr (tree); 7130extern bool deduce_inheriting_ctor (tree); 7131extern bool decl_remember_implicit_trigger_p (tree); 7132extern void synthesize_method (tree); 7133extern void maybe_synthesize_method (tree); 7134extern tree lazily_declare_fn (special_function_kind, 7135 tree); 7136extern tree skip_artificial_parms_for (const_tree, tree); 7137extern int num_artificial_parms_for (const_tree); 7138extern tree make_alias_for (tree, tree); 7139extern tree get_copy_ctor (tree, tsubst_flags_t); 7140extern tree get_copy_assign (tree); 7141extern tree get_default_ctor (tree); 7142extern tree get_dtor (tree, tsubst_flags_t); 7143extern tree build_stub_object (tree); 7144extern tree strip_inheriting_ctors (tree); 7145extern tree inherited_ctor_binfo (tree); 7146extern bool base_ctor_omit_inherited_parms (tree); 7147extern bool ctor_omit_inherited_parms (tree); 7148extern tree locate_ctor (tree); 7149extern tree implicitly_declare_fn (special_function_kind, tree, 7150 bool, tree, tree); 7151/* In module.cc */ 7152class module_state; /* Forward declare. */ 7153inline bool modules_p () { return flag_modules != 0; } 7154 7155/* The kind of module or part thereof that we're in. */ 7156enum module_kind_bits 7157{ 7158 MK_MODULE = 1 << 0, /* This TU is a module. */ 7159 MK_GLOBAL = 1 << 1, /* Entities are in the global module. */ 7160 MK_INTERFACE = 1 << 2, /* This TU is an interface. */ 7161 MK_PARTITION = 1 << 3, /* This TU is a partition. */ 7162 MK_EXPORTING = 1 << 4, /* We are in an export region. */ 7163}; 7164 7165/* We do lots of bit-manipulation, so an unsigned is easier. */ 7166extern unsigned module_kind; 7167 7168/* MK_MODULE & MK_GLOBAL have the following combined meanings: 7169 MODULE GLOBAL 7170 0 0 not a module 7171 0 1 GMF of named module (we've not yet seen module-decl) 7172 1 0 purview of named module 7173 1 1 header unit. */ 7174 7175inline bool module_purview_p () 7176{ return module_kind & MK_MODULE; } 7177inline bool global_purview_p () 7178{ return module_kind & MK_GLOBAL; } 7179 7180inline bool not_module_p () 7181{ return (module_kind & (MK_MODULE | MK_GLOBAL)) == 0; } 7182inline bool named_module_p () 7183{ /* This is a named module if exactly one of MODULE and GLOBAL is 7184 set. */ 7185 /* The divides are constant shifts! */ 7186 return ((module_kind / MK_MODULE) ^ (module_kind / MK_GLOBAL)) & 1; 7187} 7188inline bool header_module_p () 7189{ return (module_kind & (MK_MODULE | MK_GLOBAL)) == (MK_MODULE | MK_GLOBAL); } 7190inline bool named_module_purview_p () 7191{ return (module_kind & (MK_MODULE | MK_GLOBAL)) == MK_MODULE; } 7192inline bool module_interface_p () 7193{ return module_kind & MK_INTERFACE; } 7194inline bool module_partition_p () 7195{ return module_kind & MK_PARTITION; } 7196inline bool module_has_cmi_p () 7197{ return module_kind & (MK_INTERFACE | MK_PARTITION); } 7198 7199/* We're currently exporting declarations. */ 7200inline bool module_exporting_p () 7201{ return module_kind & MK_EXPORTING; } 7202 7203extern module_state *get_module (tree name, module_state *parent = NULL, 7204 bool partition = false); 7205extern bool module_may_redeclare (tree decl); 7206 7207extern int module_initializer_kind (); 7208extern void module_add_import_initializers (); 7209 7210/* Where the namespace-scope decl was originally declared. */ 7211extern void set_originating_module (tree, bool friend_p = false); 7212extern tree get_originating_module_decl (tree) ATTRIBUTE_PURE; 7213extern int get_originating_module (tree, bool for_mangle = false) ATTRIBUTE_PURE; 7214extern unsigned get_importing_module (tree, bool = false) ATTRIBUTE_PURE; 7215 7216/* Where current instance of the decl got declared/defined/instantiated. */ 7217extern void set_instantiating_module (tree); 7218extern void set_defining_module (tree); 7219extern void maybe_attach_decl (tree ctx, tree decl); 7220 7221extern void mangle_module (int m, bool include_partition); 7222extern void mangle_module_fini (); 7223extern void lazy_load_binding (unsigned mod, tree ns, tree id, 7224 binding_slot *bslot); 7225extern void lazy_load_pendings (tree decl); 7226extern module_state *preprocess_module (module_state *, location_t, 7227 bool in_purview, 7228 bool is_import, bool export_p, 7229 cpp_reader *reader); 7230extern void preprocessed_module (cpp_reader *reader); 7231extern void import_module (module_state *, location_t, bool export_p, 7232 tree attr, cpp_reader *); 7233extern void declare_module (module_state *, location_t, bool export_p, 7234 tree attr, cpp_reader *); 7235extern void init_modules (cpp_reader *); 7236extern void fini_modules (); 7237extern void maybe_check_all_macros (cpp_reader *); 7238extern void finish_module_processing (cpp_reader *); 7239extern char const *module_name (unsigned, bool header_ok); 7240extern bitmap get_import_bitmap (); 7241extern bitmap visible_instantiation_path (bitmap *); 7242extern void module_begin_main_file (cpp_reader *, line_maps *, 7243 const line_map_ordinary *); 7244extern void module_preprocess_options (cpp_reader *); 7245extern bool handle_module_option (unsigned opt, const char *arg, int value); 7246 7247/* In optimize.cc */ 7248extern bool maybe_clone_body (tree); 7249 7250/* In parser.cc */ 7251extern tree cp_convert_range_for (tree, tree, tree, tree, unsigned int, bool, 7252 unsigned short); 7253extern void cp_convert_omp_range_for (tree &, vec<tree, va_gc> *, tree &, 7254 tree &, tree &, tree &, tree &, tree &); 7255extern void cp_finish_omp_range_for (tree, tree); 7256extern bool parsing_nsdmi (void); 7257extern bool parsing_function_declarator (); 7258extern bool parsing_default_capturing_generic_lambda_in_template (void); 7259extern void inject_this_parameter (tree, cp_cv_quals); 7260extern location_t defparse_location (tree); 7261extern void maybe_show_extern_c_location (void); 7262extern bool literal_integer_zerop (const_tree); 7263 7264/* in pt.cc */ 7265extern tree canonical_type_parameter (tree); 7266extern void push_access_scope (tree); 7267extern void pop_access_scope (tree); 7268extern bool check_template_shadow (tree); 7269extern bool check_auto_in_tmpl_args (tree, tree); 7270extern tree get_innermost_template_args (tree, int); 7271extern void maybe_begin_member_template_processing (tree); 7272extern void maybe_end_member_template_processing (void); 7273extern tree finish_member_template_decl (tree); 7274extern void begin_template_parm_list (void); 7275extern bool begin_specialization (void); 7276extern void reset_specialization (void); 7277extern void end_specialization (void); 7278extern void begin_explicit_instantiation (void); 7279extern void end_explicit_instantiation (void); 7280extern void check_unqualified_spec_or_inst (tree, location_t); 7281extern tree check_explicit_specialization (tree, tree, int, int, 7282 tree = NULL_TREE); 7283extern int num_template_headers_for_class (tree); 7284extern void check_template_variable (tree); 7285extern tree make_auto (void); 7286extern tree make_decltype_auto (void); 7287extern tree make_constrained_auto (tree, tree); 7288extern tree make_constrained_decltype_auto (tree, tree); 7289extern tree make_template_placeholder (tree); 7290extern bool template_placeholder_p (tree); 7291extern bool ctad_template_p (tree); 7292extern tree do_auto_deduction (tree, tree, tree, 7293 tsubst_flags_t 7294 = tf_warning_or_error, 7295 auto_deduction_context 7296 = adc_unspecified, 7297 tree = NULL_TREE, 7298 int = LOOKUP_NORMAL); 7299extern tree type_uses_auto (tree); 7300extern tree type_uses_auto_or_concept (tree); 7301extern void append_type_to_template_for_access_check (tree, tree, tree, 7302 location_t); 7303extern tree convert_generic_types_to_packs (tree, int, int); 7304extern tree splice_late_return_type (tree, tree); 7305extern bool is_auto (const_tree); 7306extern tree process_template_parm (tree, location_t, tree, 7307 bool, bool); 7308extern tree end_template_parm_list (tree); 7309extern void end_template_parm_list (void); 7310extern void end_template_decl (void); 7311extern tree maybe_update_decl_type (tree, tree); 7312extern bool check_default_tmpl_args (tree, tree, bool, bool, int); 7313extern tree push_template_decl (tree, bool is_friend = false); 7314extern tree add_inherited_template_parms (tree, tree); 7315extern void template_parm_level_and_index (tree, int*, int*); 7316extern bool redeclare_class_template (tree, tree, tree); 7317extern tree lookup_template_class (tree, tree, tree, tree, 7318 int, tsubst_flags_t); 7319extern tree lookup_template_function (tree, tree); 7320extern tree lookup_template_variable (tree, tree); 7321extern int uses_template_parms (tree); 7322extern bool uses_template_parms_level (tree, int); 7323extern bool uses_outer_template_parms_in_constraints (tree); 7324extern bool in_template_function (void); 7325extern bool need_generic_capture (void); 7326extern tree instantiate_class_template (tree); 7327extern tree instantiate_template (tree, tree, tsubst_flags_t); 7328extern tree fn_type_unification (tree, tree, tree, 7329 const tree *, unsigned int, 7330 tree, unification_kind_t, int, 7331 struct conversion **, 7332 bool, bool); 7333extern void mark_decl_instantiated (tree, int); 7334extern int more_specialized_fn (tree, tree, int); 7335extern void do_decl_instantiation (tree, tree); 7336extern void do_type_instantiation (tree, tree, tsubst_flags_t); 7337extern bool always_instantiate_p (tree); 7338extern bool maybe_instantiate_noexcept (tree, tsubst_flags_t = tf_warning_or_error); 7339extern tree instantiate_decl (tree, bool, bool); 7340extern void maybe_instantiate_decl (tree); 7341extern int comp_template_parms (const_tree, const_tree); 7342extern bool template_heads_equivalent_p (const_tree, const_tree); 7343extern bool builtin_pack_fn_p (tree); 7344extern tree uses_parameter_packs (tree); 7345extern bool template_parameter_pack_p (const_tree); 7346extern bool function_parameter_pack_p (const_tree); 7347extern bool function_parameter_expanded_from_pack_p (tree, tree); 7348extern tree make_pack_expansion (tree, tsubst_flags_t = tf_warning_or_error); 7349extern bool check_for_bare_parameter_packs (tree, location_t = UNKNOWN_LOCATION); 7350extern tree build_template_info (tree, tree); 7351extern tree get_template_info (const_tree); 7352extern int template_class_depth (tree); 7353extern int is_specialization_of (tree, tree); 7354extern bool is_specialization_of_friend (tree, tree); 7355extern int comp_template_args (tree, tree, tree * = NULL, 7356 tree * = NULL, bool = false); 7357extern int template_args_equal (tree, tree, bool = false); 7358extern tree maybe_process_partial_specialization (tree); 7359extern tree most_specialized_instantiation (tree); 7360extern tree most_specialized_partial_spec (tree, tsubst_flags_t); 7361extern void print_candidates (tree); 7362extern void instantiate_pending_templates (int); 7363extern tree tsubst_default_argument (tree, int, tree, tree, 7364 tsubst_flags_t); 7365extern tree tsubst (tree, tree, tsubst_flags_t, tree); 7366extern tree tsubst_copy_and_build (tree, tree, tsubst_flags_t, 7367 tree, bool = false, bool = false); 7368extern tree tsubst_expr (tree, tree, tsubst_flags_t, 7369 tree, bool); 7370extern tree tsubst_pack_expansion (tree, tree, tsubst_flags_t, tree); 7371extern tree tsubst_argument_pack (tree, tree, tsubst_flags_t, tree); 7372extern tree tsubst_template_args (tree, tree, tsubst_flags_t, tree); 7373extern tree tsubst_template_arg (tree, tree, tsubst_flags_t, tree); 7374extern tree tsubst_function_parms (tree, tree, tsubst_flags_t, tree); 7375extern tree most_general_template (tree); 7376extern tree get_mostly_instantiated_function_type (tree); 7377extern bool problematic_instantiation_changed (void); 7378extern void record_last_problematic_instantiation (void); 7379extern struct tinst_level *current_instantiation(void); 7380extern bool instantiating_current_function_p (void); 7381extern tree maybe_get_template_decl_from_type_decl (tree); 7382extern int processing_template_parmlist; 7383extern bool dependent_type_p (tree); 7384extern bool dependent_scope_p (tree); 7385extern bool dependentish_scope_p (tree); 7386extern bool any_dependent_template_arguments_p (const_tree); 7387extern bool any_erroneous_template_args_p (const_tree); 7388extern bool dependent_template_p (tree); 7389extern bool dependent_template_id_p (tree, tree); 7390extern bool type_dependent_expression_p (tree); 7391extern bool type_dependent_object_expression_p (tree); 7392extern bool any_type_dependent_arguments_p (const vec<tree, va_gc> *); 7393extern bool any_type_dependent_elements_p (const_tree); 7394extern bool type_dependent_expression_p_push (tree); 7395extern bool value_dependent_expression_p (tree); 7396extern bool instantiation_dependent_uneval_expression_p (tree); 7397extern bool any_value_dependent_elements_p (const_tree); 7398extern bool dependent_omp_for_p (tree, tree, tree, tree); 7399extern tree resolve_typename_type (tree, bool); 7400extern tree template_for_substitution (tree); 7401extern tree build_non_dependent_expr (tree); 7402extern void make_args_non_dependent (vec<tree, va_gc> *); 7403extern bool reregister_specialization (tree, tree, tree); 7404extern tree instantiate_non_dependent_expr (tree); 7405extern tree instantiate_non_dependent_expr_sfinae (tree, tsubst_flags_t); 7406extern tree instantiate_non_dependent_expr_internal (tree, tsubst_flags_t); 7407extern tree instantiate_non_dependent_or_null (tree); 7408extern bool variable_template_specialization_p (tree); 7409extern bool alias_type_or_template_p (tree); 7410enum { nt_opaque = false, nt_transparent = true }; 7411extern tree alias_template_specialization_p (const_tree, bool); 7412extern tree dependent_alias_template_spec_p (const_tree, bool); 7413extern bool template_parm_object_p (const_tree); 7414extern tree tparm_object_argument (tree); 7415extern bool explicit_class_specialization_p (tree); 7416extern bool push_tinst_level (tree); 7417extern bool push_tinst_level (tree, tree); 7418extern bool push_tinst_level_loc (tree, location_t); 7419extern bool push_tinst_level_loc (tree, tree, location_t); 7420extern void pop_tinst_level (void); 7421extern struct tinst_level *outermost_tinst_level(void); 7422extern bool non_templated_friend_p (tree); 7423extern void init_template_processing (void); 7424extern void print_template_statistics (void); 7425bool template_template_parameter_p (const_tree); 7426bool template_type_parameter_p (const_tree); 7427extern bool primary_template_specialization_p (const_tree); 7428extern tree get_primary_template_innermost_parameters (const_tree); 7429extern tree get_template_innermost_arguments (const_tree); 7430extern tree get_template_argument_pack_elems (const_tree); 7431extern tree get_function_template_decl (const_tree); 7432extern tree resolve_nondeduced_context (tree, tsubst_flags_t); 7433extern tree resolve_nondeduced_context_or_error (tree, tsubst_flags_t); 7434extern hashval_t iterative_hash_template_arg (tree arg, hashval_t val); 7435extern tree coerce_template_parms (tree, tree, tree); 7436extern tree coerce_template_parms (tree, tree, tree, tsubst_flags_t); 7437extern tree canonicalize_type_argument (tree, tsubst_flags_t); 7438extern void register_local_specialization (tree, tree); 7439extern tree retrieve_local_specialization (tree); 7440extern tree extract_fnparm_pack (tree, tree *); 7441extern tree template_parm_to_arg (tree); 7442extern tree dguide_name (tree); 7443extern bool dguide_name_p (tree); 7444extern bool deduction_guide_p (const_tree); 7445extern bool copy_guide_p (const_tree); 7446extern bool template_guide_p (const_tree); 7447extern bool builtin_guide_p (const_tree); 7448extern void store_explicit_specifier (tree, tree); 7449extern tree lookup_explicit_specifier (tree); 7450extern void walk_specializations (bool, 7451 void (*)(bool, spec_entry *, 7452 void *), 7453 void *); 7454extern tree match_mergeable_specialization (bool is_decl, spec_entry *); 7455extern unsigned get_mergeable_specialization_flags (tree tmpl, tree spec); 7456extern void add_mergeable_specialization (bool is_decl, bool is_alias, 7457 spec_entry *, 7458 tree outer, unsigned); 7459extern tree add_to_template_args (tree, tree); 7460extern tree add_outermost_template_args (tree, tree); 7461extern tree add_extra_args (tree, tree, tsubst_flags_t, tree); 7462extern tree build_extra_args (tree, tree, tsubst_flags_t); 7463 7464/* in rtti.cc */ 7465/* A vector of all tinfo decls that haven't been emitted yet. */ 7466extern GTY(()) vec<tree, va_gc> *unemitted_tinfo_decls; 7467 7468extern void init_rtti_processing (void); 7469extern tree build_typeid (tree, tsubst_flags_t); 7470extern tree get_tinfo_decl_direct (tree, tree, int); 7471extern tree get_tinfo_decl (tree); 7472extern tree get_typeid (tree, tsubst_flags_t); 7473extern tree build_headof (tree); 7474extern tree build_dynamic_cast (location_t, tree, tree, 7475 tsubst_flags_t); 7476extern void emit_support_tinfos (void); 7477extern bool emit_tinfo_decl (tree); 7478extern unsigned get_pseudo_tinfo_index (tree); 7479extern tree get_pseudo_tinfo_type (unsigned); 7480extern tree build_if_nonnull (tree, tree, tsubst_flags_t); 7481 7482/* in search.cc */ 7483extern tree get_parent_with_private_access (tree decl, tree binfo); 7484extern bool accessible_base_p (tree, tree, bool); 7485extern tree lookup_base (tree, tree, base_access, 7486 base_kind *, tsubst_flags_t); 7487extern tree dcast_base_hint (tree, tree); 7488extern int accessible_p (tree, tree, bool); 7489extern int accessible_in_template_p (tree, tree); 7490extern tree lookup_field (tree, tree, int, bool); 7491extern tree lookup_fnfields (tree, tree, int, tsubst_flags_t); 7492extern tree lookup_member (tree, tree, int, bool, 7493 tsubst_flags_t, 7494 access_failure_info *afi = NULL); 7495extern tree lookup_member_fuzzy (tree, tree, bool); 7496extern tree locate_field_accessor (tree, tree, bool); 7497extern int look_for_overrides (tree, tree); 7498extern void get_pure_virtuals (tree); 7499extern void maybe_suppress_debug_info (tree); 7500extern void note_debug_info_needed (tree); 7501extern tree current_scope (void); 7502extern int at_function_scope_p (void); 7503extern bool at_class_scope_p (void); 7504extern bool at_namespace_scope_p (void); 7505extern tree context_for_name_lookup (tree); 7506extern tree lookup_conversions (tree); 7507extern tree binfo_from_vbase (tree); 7508extern tree binfo_for_vbase (tree, tree); 7509extern tree look_for_overrides_here (tree, tree); 7510#define dfs_skip_bases ((tree)1) 7511extern tree dfs_walk_all (tree, tree (*) (tree, void *), 7512 tree (*) (tree, void *), void *); 7513extern tree dfs_walk_once (tree, tree (*) (tree, void *), 7514 tree (*) (tree, void *), void *); 7515extern tree binfo_via_virtual (tree, tree); 7516extern bool binfo_direct_p (tree); 7517extern tree build_baselink (tree, tree, tree, tree); 7518extern tree adjust_result_of_qualified_name_lookup 7519 (tree, tree, tree); 7520extern tree copied_binfo (tree, tree); 7521extern tree original_binfo (tree, tree); 7522extern bool shared_member_p (tree); 7523extern bool any_dependent_bases_p (tree = current_nonlambda_class_type ()); 7524extern bool maybe_check_overriding_exception_spec (tree, tree); 7525 7526/* in semantics.cc */ 7527extern void push_deferring_access_checks (deferring_kind); 7528extern void resume_deferring_access_checks (void); 7529extern void stop_deferring_access_checks (void); 7530extern void pop_deferring_access_checks (void); 7531extern vec<deferred_access_check, va_gc> *get_deferred_access_checks (void); 7532extern void reopen_deferring_access_checks (vec<deferred_access_check, va_gc> *); 7533extern void pop_to_parent_deferring_access_checks (void); 7534extern bool perform_access_checks (vec<deferred_access_check, va_gc> *, 7535 tsubst_flags_t); 7536extern bool perform_deferred_access_checks (tsubst_flags_t); 7537extern bool perform_or_defer_access_check (tree, tree, tree, 7538 tsubst_flags_t, 7539 access_failure_info *afi = NULL); 7540 7541/* RAII sentinel to ensures that deferred access checks are popped before 7542 a function returns. */ 7543 7544class deferring_access_check_sentinel 7545{ 7546public: 7547 deferring_access_check_sentinel (enum deferring_kind kind = dk_deferred) 7548 { 7549 push_deferring_access_checks (kind); 7550 } 7551 ~deferring_access_check_sentinel () 7552 { 7553 pop_deferring_access_checks (); 7554 } 7555}; 7556 7557extern int stmts_are_full_exprs_p (void); 7558extern void init_cp_semantics (void); 7559extern tree do_poplevel (tree); 7560extern void break_maybe_infinite_loop (void); 7561extern void add_decl_expr (tree); 7562extern tree maybe_cleanup_point_expr_void (tree); 7563extern tree finish_expr_stmt (tree); 7564extern tree begin_if_stmt (void); 7565extern tree finish_if_stmt_cond (tree, tree); 7566extern tree finish_then_clause (tree); 7567extern void begin_else_clause (tree); 7568extern void finish_else_clause (tree); 7569extern void finish_if_stmt (tree); 7570extern tree begin_while_stmt (void); 7571extern void finish_while_stmt_cond (tree, tree, bool, unsigned short); 7572extern void finish_while_stmt (tree); 7573extern tree begin_do_stmt (void); 7574extern void finish_do_body (tree); 7575extern void finish_do_stmt (tree, tree, bool, unsigned short); 7576extern tree finish_return_stmt (tree); 7577extern tree begin_for_scope (tree *); 7578extern tree begin_for_stmt (tree, tree); 7579extern void finish_init_stmt (tree); 7580extern void finish_for_cond (tree, tree, bool, unsigned short); 7581extern void finish_for_expr (tree, tree); 7582extern void finish_for_stmt (tree); 7583extern tree begin_range_for_stmt (tree, tree); 7584extern void finish_range_for_decl (tree, tree, tree); 7585extern void finish_range_for_stmt (tree); 7586extern tree finish_break_stmt (void); 7587extern tree finish_continue_stmt (void); 7588extern tree begin_switch_stmt (void); 7589extern void finish_switch_cond (tree, tree); 7590extern void finish_switch_stmt (tree); 7591extern tree finish_goto_stmt (tree); 7592extern tree begin_try_block (void); 7593extern void finish_try_block (tree); 7594extern void finish_handler_sequence (tree); 7595extern tree begin_function_try_block (tree *); 7596extern void finish_function_try_block (tree); 7597extern void finish_function_handler_sequence (tree, tree); 7598extern void finish_cleanup_try_block (tree); 7599extern tree begin_handler (void); 7600extern void finish_handler_parms (tree, tree); 7601extern void finish_handler (tree); 7602extern void finish_cleanup (tree, tree); 7603extern bool is_this_parameter (tree); 7604 7605enum { 7606 BCS_NORMAL = 0, 7607 BCS_NO_SCOPE = 1, 7608 BCS_TRY_BLOCK = 2, 7609 BCS_FN_BODY = 4, 7610 BCS_TRANSACTION = 8 7611}; 7612extern tree begin_compound_stmt (unsigned int); 7613 7614extern void finish_compound_stmt (tree); 7615extern tree finish_asm_stmt (location_t, int, tree, tree, 7616 tree, tree, tree, bool); 7617extern tree finish_label_stmt (tree); 7618extern void finish_label_decl (tree); 7619extern cp_expr finish_parenthesized_expr (cp_expr); 7620extern tree force_paren_expr (tree, bool = false); 7621inline tree force_paren_expr_uneval (tree t) 7622{ return force_paren_expr (t, true); } 7623extern tree maybe_undo_parenthesized_ref (tree); 7624extern tree maybe_strip_ref_conversion (tree); 7625extern tree finish_non_static_data_member (tree, tree, tree); 7626extern tree begin_stmt_expr (void); 7627extern tree finish_stmt_expr_expr (tree, tree); 7628extern tree finish_stmt_expr (tree, bool); 7629extern tree stmt_expr_value_expr (tree); 7630bool empty_expr_stmt_p (tree); 7631extern cp_expr perform_koenig_lookup (cp_expr, vec<tree, va_gc> *, 7632 tsubst_flags_t); 7633extern tree finish_call_expr (tree, vec<tree, va_gc> **, bool, 7634 bool, tsubst_flags_t); 7635extern tree lookup_and_finish_template_variable (tree, tree, tsubst_flags_t = tf_warning_or_error); 7636extern tree finish_template_variable (tree, tsubst_flags_t = tf_warning_or_error); 7637extern cp_expr finish_increment_expr (cp_expr, enum tree_code); 7638extern tree finish_this_expr (void); 7639extern tree finish_pseudo_destructor_expr (tree, tree, tree, location_t); 7640extern cp_expr finish_unary_op_expr (location_t, enum tree_code, cp_expr, 7641 tsubst_flags_t); 7642/* Whether this call to finish_compound_literal represents a C++11 functional 7643 cast or a C99 compound literal. */ 7644enum fcl_t { fcl_functional, fcl_c99 }; 7645extern tree finish_compound_literal (tree, tree, tsubst_flags_t, fcl_t = fcl_functional); 7646extern tree finish_fname (tree); 7647extern void finish_translation_unit (void); 7648extern tree finish_template_type_parm (tree, tree); 7649extern tree finish_template_template_parm (tree, tree); 7650extern tree begin_class_definition (tree); 7651extern void finish_template_decl (tree); 7652extern tree finish_template_type (tree, tree, int); 7653extern tree finish_base_specifier (tree, tree, bool); 7654extern void finish_member_declaration (tree); 7655extern bool outer_automatic_var_p (tree); 7656extern tree process_outer_var_ref (tree, tsubst_flags_t, bool force_use = false); 7657extern cp_expr finish_id_expression (tree, tree, tree, 7658 cp_id_kind *, 7659 bool, bool, bool *, 7660 bool, bool, bool, bool, 7661 const char **, 7662 location_t); 7663extern tree finish_typeof (tree); 7664extern tree finish_underlying_type (tree); 7665extern tree calculate_bases (tree, tsubst_flags_t); 7666extern tree finish_bases (tree, bool); 7667extern tree calculate_direct_bases (tree, tsubst_flags_t); 7668extern tree finish_offsetof (tree, tree, location_t); 7669extern void finish_decl_cleanup (tree, tree); 7670extern void finish_eh_cleanup (tree); 7671extern void emit_associated_thunks (tree); 7672extern void finish_mem_initializers (tree); 7673extern tree check_template_template_default_arg (tree); 7674extern bool expand_or_defer_fn_1 (tree); 7675extern void expand_or_defer_fn (tree); 7676extern bool check_accessibility_of_qualified_id (tree, tree, tree, tsubst_flags_t); 7677extern tree finish_qualified_id_expr (tree, tree, bool, bool, 7678 bool, bool, tsubst_flags_t); 7679extern void simplify_aggr_init_expr (tree *); 7680extern void finalize_nrv (tree *, tree, tree); 7681extern tree omp_reduction_id (enum tree_code, tree, tree); 7682extern tree cp_remove_omp_priv_cleanup_stmt (tree *, int *, void *); 7683extern bool cp_check_omp_declare_reduction (tree); 7684extern void finish_omp_declare_simd_methods (tree); 7685extern tree finish_omp_clauses (tree, enum c_omp_region_type); 7686extern tree push_omp_privatization_clauses (bool); 7687extern void pop_omp_privatization_clauses (tree); 7688extern void save_omp_privatization_clauses (vec<tree> &); 7689extern void restore_omp_privatization_clauses (vec<tree> &); 7690extern void finish_omp_threadprivate (tree); 7691extern tree begin_omp_structured_block (void); 7692extern tree finish_omp_structured_block (tree); 7693extern tree finish_oacc_data (tree, tree); 7694extern tree finish_oacc_host_data (tree, tree); 7695extern tree finish_omp_construct (enum tree_code, tree, tree); 7696extern tree begin_omp_parallel (void); 7697extern tree finish_omp_parallel (tree, tree); 7698extern tree begin_omp_task (void); 7699extern tree finish_omp_task (tree, tree); 7700extern tree finish_omp_for (location_t, enum tree_code, 7701 tree, tree, tree, tree, tree, 7702 tree, tree, vec<tree> *, tree); 7703extern tree finish_omp_for_block (tree, tree); 7704extern void finish_omp_atomic (location_t, enum tree_code, 7705 enum tree_code, tree, tree, 7706 tree, tree, tree, tree, tree, 7707 enum omp_memory_order, bool); 7708extern void finish_omp_barrier (void); 7709extern void finish_omp_depobj (location_t, tree, 7710 enum omp_clause_depend_kind, 7711 tree); 7712extern void finish_omp_flush (int); 7713extern void finish_omp_taskwait (void); 7714extern void finish_omp_taskyield (void); 7715extern void finish_omp_cancel (tree); 7716extern void finish_omp_cancellation_point (tree); 7717extern tree omp_privatize_field (tree, bool); 7718extern tree begin_transaction_stmt (location_t, tree *, int); 7719extern void finish_transaction_stmt (tree, tree, int, tree); 7720extern tree build_transaction_expr (location_t, tree, int, tree); 7721extern bool cxx_omp_create_clause_info (tree, tree, bool, bool, 7722 bool, bool); 7723extern tree baselink_for_fns (tree); 7724extern void finish_static_assert (tree, tree, location_t, 7725 bool, bool); 7726extern tree finish_decltype_type (tree, bool, tsubst_flags_t); 7727extern tree fold_builtin_is_corresponding_member (location_t, int, tree *); 7728extern tree fold_builtin_is_pointer_inverconvertible_with_class (location_t, int, tree *); 7729extern tree finish_trait_expr (location_t, enum cp_trait_kind, tree, tree); 7730extern tree build_lambda_expr (void); 7731extern tree build_lambda_object (tree); 7732extern tree begin_lambda_type (tree); 7733extern tree lambda_capture_field_type (tree, bool, bool); 7734extern tree lambda_proxy_type (tree); 7735extern tree lambda_function (tree); 7736extern void apply_deduced_return_type (tree, tree); 7737extern tree add_capture (tree, tree, tree, bool, bool); 7738extern tree add_default_capture (tree, tree, tree); 7739extern void insert_capture_proxy (tree); 7740extern void insert_pending_capture_proxies (void); 7741extern bool is_capture_proxy (tree); 7742extern bool is_normal_capture_proxy (tree); 7743extern bool is_constant_capture_proxy (tree); 7744extern void register_capture_members (tree); 7745extern tree lambda_expr_this_capture (tree, int); 7746extern void maybe_generic_this_capture (tree, tree); 7747extern tree maybe_resolve_dummy (tree, bool); 7748extern tree current_nonlambda_function (void); 7749extern tree nonlambda_method_basetype (void); 7750extern tree current_nonlambda_scope (void); 7751extern tree current_lambda_expr (void); 7752extern bool generic_lambda_fn_p (tree); 7753extern tree do_dependent_capture (tree, bool = false); 7754extern bool lambda_fn_in_template_p (tree); 7755extern void maybe_add_lambda_conv_op (tree); 7756extern bool is_lambda_ignored_entity (tree); 7757extern bool lambda_static_thunk_p (tree); 7758extern bool call_from_lambda_thunk_p (tree); 7759extern tree finish_builtin_launder (location_t, tree, 7760 tsubst_flags_t); 7761extern tree cp_build_vec_convert (tree, location_t, tree, 7762 tsubst_flags_t); 7763extern tree cp_build_bit_cast (location_t, tree, tree, 7764 tsubst_flags_t); 7765extern void start_lambda_scope (tree); 7766extern void record_lambda_scope (tree); 7767extern void record_null_lambda_scope (tree); 7768extern void finish_lambda_scope (void); 7769extern tree start_lambda_function (tree fn, tree lambda_expr); 7770extern void finish_lambda_function (tree body); 7771extern bool regenerated_lambda_fn_p (tree); 7772extern tree lambda_regenerating_args (tree); 7773extern tree most_general_lambda (tree); 7774extern tree finish_omp_target (location_t, tree, tree, bool); 7775extern void finish_omp_target_clauses (location_t, tree, tree *); 7776 7777/* in tree.cc */ 7778extern int cp_tree_operand_length (const_tree); 7779extern int cp_tree_code_length (enum tree_code); 7780extern void cp_free_lang_data (tree t); 7781extern tree force_target_expr (tree, tree, tsubst_flags_t); 7782extern tree build_target_expr_with_type (tree, tree, tsubst_flags_t); 7783extern void lang_check_failed (const char *, int, 7784 const char *) ATTRIBUTE_NORETURN 7785 ATTRIBUTE_COLD; 7786extern tree stabilize_expr (tree, tree *); 7787extern void stabilize_call (tree, tree *); 7788extern bool stabilize_init (tree, tree *); 7789extern tree add_stmt_to_compound (tree, tree); 7790extern void init_tree (void); 7791extern bool pod_type_p (const_tree); 7792extern bool layout_pod_type_p (const_tree); 7793extern bool std_layout_type_p (const_tree); 7794extern bool trivial_type_p (const_tree); 7795extern bool trivially_copyable_p (const_tree); 7796extern bool type_has_unique_obj_representations (const_tree); 7797extern bool scalarish_type_p (const_tree); 7798extern bool structural_type_p (tree, bool = false); 7799extern bool type_has_nontrivial_default_init (const_tree); 7800extern bool type_has_nontrivial_copy_init (const_tree); 7801extern void maybe_warn_parm_abi (tree, location_t); 7802extern bool class_tmpl_impl_spec_p (const_tree); 7803extern int zero_init_p (const_tree); 7804extern bool zero_init_expr_p (tree); 7805extern bool check_abi_tag_redeclaration (const_tree, const_tree, 7806 const_tree); 7807extern bool check_abi_tag_args (tree, tree); 7808extern tree strip_typedefs (tree, bool * = NULL, 7809 unsigned int = 0); 7810extern tree strip_typedefs_expr (tree, bool * = NULL, 7811 unsigned int = 0); 7812extern tree copy_binfo (tree, tree, tree, 7813 tree *, int); 7814extern int member_p (const_tree); 7815extern cp_lvalue_kind real_lvalue_p (const_tree); 7816extern cp_lvalue_kind lvalue_kind (const_tree); 7817extern bool glvalue_p (const_tree); 7818extern bool obvalue_p (const_tree); 7819extern bool xvalue_p (const_tree); 7820extern bool bitfield_p (const_tree); 7821extern tree cp_stabilize_reference (tree); 7822extern bool builtin_valid_in_constant_expr_p (const_tree); 7823extern tree build_min (enum tree_code, tree, ...); 7824extern tree build_min_nt_loc (location_t, enum tree_code, 7825 ...); 7826extern tree build_min_non_dep (enum tree_code, tree, ...); 7827extern tree build_min_non_dep_op_overload (enum tree_code, tree, tree, ...); 7828extern tree build_min_non_dep_op_overload (tree, tree, tree, 7829 vec<tree, va_gc> *); 7830extern tree build_min_nt_call_vec (tree, vec<tree, va_gc> *); 7831extern tree build_min_non_dep_call_vec (tree, tree, vec<tree, va_gc> *); 7832extern vec<tree, va_gc>* vec_copy_and_insert (vec<tree, va_gc>*, tree, unsigned); 7833extern tree build_cplus_new (tree, tree, tsubst_flags_t); 7834extern tree build_local_temp (tree); 7835extern bool is_local_temp (tree); 7836extern tree build_aggr_init_expr (tree, tree); 7837extern tree get_target_expr (tree); 7838extern tree get_target_expr_sfinae (tree, tsubst_flags_t); 7839extern tree build_cplus_array_type (tree, tree, int is_dep = -1); 7840extern tree build_array_of_n_type (tree, int); 7841extern bool array_of_runtime_bound_p (tree); 7842extern bool vla_type_p (tree); 7843extern tree build_array_copy (tree); 7844extern tree build_vec_init_expr (tree, tree, tsubst_flags_t); 7845extern tree expand_vec_init_expr (tree, tree, tsubst_flags_t, 7846 vec<tree,va_gc>** = nullptr); 7847extern void diagnose_non_constexpr_vec_init (tree); 7848extern tree hash_tree_cons (tree, tree, tree); 7849extern tree hash_tree_chain (tree, tree); 7850extern tree build_qualified_name (tree, tree, tree, bool); 7851extern tree build_ref_qualified_type (tree, cp_ref_qualifier); 7852extern tree make_binding_vec (tree, unsigned clusters CXX_MEM_STAT_INFO); 7853inline tree ovl_first (tree) ATTRIBUTE_PURE; 7854extern tree ovl_make (tree fn, 7855 tree next = NULL_TREE); 7856extern tree ovl_insert (tree fn, tree maybe_ovl, 7857 int using_or_hidden = 0); 7858extern tree ovl_skip_hidden (tree) ATTRIBUTE_PURE; 7859extern void lookup_mark (tree lookup, bool val); 7860extern tree lookup_add (tree fns, tree lookup); 7861extern tree lookup_maybe_add (tree fns, tree lookup, 7862 bool deduping); 7863extern int is_overloaded_fn (tree) ATTRIBUTE_PURE; 7864extern bool really_overloaded_fn (tree) ATTRIBUTE_PURE; 7865extern tree dependent_name (tree); 7866extern tree call_expr_dependent_name (tree); 7867extern tree maybe_get_fns (tree) ATTRIBUTE_PURE; 7868extern tree get_fns (tree) ATTRIBUTE_PURE; 7869extern tree get_first_fn (tree) ATTRIBUTE_PURE; 7870extern tree ovl_scope (tree); 7871extern const char *cxx_printable_name (tree, int); 7872extern const char *cxx_printable_name_translate (tree, int); 7873extern tree canonical_eh_spec (tree); 7874extern tree build_cp_fntype_variant (tree, cp_ref_qualifier, tree, bool); 7875extern tree build_exception_variant (tree, tree); 7876extern void fixup_deferred_exception_variants (tree, tree); 7877extern tree bind_template_template_parm (tree, tree); 7878extern tree array_type_nelts_total (tree); 7879extern tree array_type_nelts_top (tree); 7880extern bool array_of_unknown_bound_p (const_tree); 7881extern bool source_location_current_p (tree); 7882extern tree break_out_target_exprs (tree, bool = false); 7883extern tree build_ctor_subob_ref (tree, tree, tree); 7884extern tree replace_placeholders (tree, tree, bool * = NULL); 7885extern bool find_placeholders (tree); 7886extern tree get_type_decl (tree); 7887extern tree decl_namespace_context (tree); 7888extern bool decl_anon_ns_mem_p (const_tree); 7889extern tree lvalue_type (tree); 7890extern tree error_type (tree); 7891extern int varargs_function_p (const_tree); 7892extern bool cp_tree_equal (tree, tree); 7893extern tree no_linkage_check (tree, bool); 7894extern void debug_binfo (tree); 7895extern tree build_dummy_object (tree); 7896extern tree maybe_dummy_object (tree, tree *); 7897extern bool is_dummy_object (const_tree); 7898extern bool is_byte_access_type (tree); 7899extern bool is_byte_access_type_not_plain_char (tree); 7900extern const struct attribute_spec cxx_attribute_table[]; 7901extern tree make_ptrmem_cst (tree, tree); 7902extern tree cp_build_type_attribute_variant (tree, tree); 7903extern tree cp_build_reference_type (tree, bool); 7904extern tree move (tree); 7905extern tree cp_build_qualified_type_real (tree, int, tsubst_flags_t); 7906#define cp_build_qualified_type(TYPE, QUALS) \ 7907 cp_build_qualified_type_real ((TYPE), (QUALS), tf_warning_or_error) 7908extern bool cv_qualified_p (const_tree); 7909extern tree cv_unqualified (tree); 7910extern special_function_kind special_function_p (const_tree); 7911extern special_function_kind special_memfn_p (const_tree); 7912extern int count_trees (tree); 7913extern int char_type_p (tree); 7914extern void verify_stmt_tree (tree); 7915extern linkage_kind decl_linkage (tree); 7916extern duration_kind decl_storage_duration (tree); 7917extern tree cp_walk_subtrees (tree*, int*, walk_tree_fn, 7918 void*, hash_set<tree> *); 7919#define cp_walk_tree(tp,func,data,pset) \ 7920 walk_tree_1 (tp, func, data, pset, cp_walk_subtrees) 7921#define cp_walk_tree_without_duplicates(tp,func,data) \ 7922 walk_tree_without_duplicates_1 (tp, func, data, cp_walk_subtrees) 7923extern tree rvalue (tree); 7924extern tree convert_bitfield_to_declared_type (tree); 7925extern tree cp_save_expr (tree); 7926extern bool cast_valid_in_integral_constant_expression_p (tree); 7927extern bool cxx_type_hash_eq (const_tree, const_tree); 7928extern tree cxx_copy_lang_qualifiers (const_tree, const_tree); 7929 7930extern void cxx_print_statistics (void); 7931extern bool maybe_warn_zero_as_null_pointer_constant (tree, location_t); 7932 7933/* in ptree.cc */ 7934extern void cxx_print_xnode (FILE *, tree, int); 7935extern void cxx_print_decl (FILE *, tree, int); 7936extern void cxx_print_type (FILE *, tree, int); 7937extern void cxx_print_identifier (FILE *, tree, int); 7938extern void cxx_print_error_function (diagnostic_context *, 7939 const char *, 7940 struct diagnostic_info *); 7941 7942/* in typeck.cc */ 7943/* Says how we should behave when comparing two arrays one of which 7944 has unknown bounds. */ 7945enum compare_bounds_t { bounds_none, bounds_either, bounds_first }; 7946 7947extern bool cxx_mark_addressable (tree, bool = false); 7948extern int string_conv_p (const_tree, const_tree, int); 7949extern tree cp_truthvalue_conversion (tree, tsubst_flags_t); 7950extern tree contextual_conv_bool (tree, tsubst_flags_t); 7951extern tree condition_conversion (tree); 7952extern tree require_complete_type (tree); 7953extern tree require_complete_type_sfinae (tree, tsubst_flags_t); 7954extern tree complete_type (tree); 7955extern tree complete_type_or_else (tree, tree); 7956extern tree complete_type_or_maybe_complain (tree, tree, tsubst_flags_t); 7957inline bool type_unknown_p (const_tree); 7958enum { ce_derived, ce_type, ce_normal, ce_exact }; 7959extern bool comp_except_specs (const_tree, const_tree, int); 7960extern bool comptypes (tree, tree, int); 7961extern bool same_type_ignoring_top_level_qualifiers_p (tree, tree); 7962extern bool similar_type_p (tree, tree); 7963extern bool next_common_initial_sequence (tree &, tree &); 7964extern bool layout_compatible_type_p (tree, tree); 7965extern bool compparms (const_tree, const_tree); 7966extern int comp_cv_qualification (const_tree, const_tree); 7967extern int comp_cv_qualification (int, int); 7968extern int comp_cv_qual_signature (tree, tree); 7969extern tree cxx_sizeof_or_alignof_expr (location_t, tree, 7970 enum tree_code, bool, bool); 7971extern tree cxx_sizeof_or_alignof_type (location_t, tree, 7972 enum tree_code, bool, bool); 7973extern tree cxx_alignas_expr (tree); 7974extern tree cxx_sizeof_nowarn (tree); 7975extern tree is_bitfield_expr_with_lowered_type (const_tree); 7976extern tree unlowered_expr_type (const_tree); 7977extern tree decay_conversion (tree, 7978 tsubst_flags_t, 7979 bool = true); 7980extern tree build_class_member_access_expr (cp_expr, tree, tree, bool, 7981 tsubst_flags_t); 7982extern tree finish_class_member_access_expr (cp_expr, tree, bool, 7983 tsubst_flags_t); 7984extern tree lookup_destructor (tree, tree, tree, tsubst_flags_t); 7985extern tree build_dependent_operator_type (tree, enum tree_code, bool); 7986extern tree build_x_indirect_ref (location_t, tree, 7987 ref_operator, tree, 7988 tsubst_flags_t); 7989extern tree cp_build_indirect_ref (location_t, tree, 7990 ref_operator, 7991 tsubst_flags_t); 7992extern tree cp_build_fold_indirect_ref (tree); 7993extern tree build_array_ref (location_t, tree, tree); 7994extern tree cp_build_array_ref (location_t, tree, tree, 7995 tsubst_flags_t); 7996extern tree get_member_function_from_ptrfunc (tree *, tree, tsubst_flags_t); 7997extern tree cp_build_function_call_nary (tree, tsubst_flags_t, ...) 7998 ATTRIBUTE_SENTINEL; 7999extern tree cp_build_function_call_vec (tree, vec<tree, va_gc> **, 8000 tsubst_flags_t, 8001 tree = NULL_TREE); 8002extern tree build_x_binary_op (const op_location_t &, 8003 enum tree_code, tree, 8004 enum tree_code, tree, 8005 enum tree_code, tree, 8006 tree *, tsubst_flags_t); 8007inline tree build_x_binary_op (const op_location_t &loc, 8008 enum tree_code code, tree arg1, tree arg2, 8009 tsubst_flags_t complain) 8010{ 8011 return build_x_binary_op (loc, code, arg1, TREE_CODE (arg1), arg2, 8012 TREE_CODE (arg2), NULL_TREE, NULL, complain); 8013} 8014extern tree build_x_array_ref (location_t, tree, tree, 8015 tsubst_flags_t); 8016extern tree build_x_unary_op (location_t, 8017 enum tree_code, cp_expr, 8018 tree, tsubst_flags_t); 8019extern tree cp_build_addressof (location_t, tree, 8020 tsubst_flags_t); 8021extern tree cp_build_addr_expr (tree, tsubst_flags_t); 8022extern tree cp_build_unary_op (enum tree_code, tree, bool, 8023 tsubst_flags_t); 8024extern tree genericize_compound_lvalue (tree); 8025extern tree unary_complex_lvalue (enum tree_code, tree); 8026extern tree build_x_conditional_expr (location_t, tree, tree, tree, 8027 tsubst_flags_t); 8028extern tree build_x_compound_expr_from_list (tree, expr_list_kind, 8029 tsubst_flags_t); 8030extern tree build_x_compound_expr_from_vec (vec<tree, va_gc> *, 8031 const char *, tsubst_flags_t); 8032extern tree build_x_compound_expr (location_t, tree, tree, 8033 tree, tsubst_flags_t); 8034extern tree build_compound_expr (location_t, tree, tree); 8035extern tree cp_build_compound_expr (tree, tree, tsubst_flags_t); 8036extern tree build_static_cast (location_t, tree, tree, 8037 tsubst_flags_t); 8038extern tree build_reinterpret_cast (location_t, tree, tree, 8039 tsubst_flags_t); 8040extern tree build_const_cast (location_t, tree, tree, 8041 tsubst_flags_t); 8042extern tree build_c_cast (location_t, tree, tree); 8043extern cp_expr build_c_cast (location_t loc, tree type, 8044 cp_expr expr); 8045extern tree cp_build_c_cast (location_t, tree, tree, 8046 tsubst_flags_t); 8047extern cp_expr build_x_modify_expr (location_t, tree, 8048 enum tree_code, tree, 8049 tree, tsubst_flags_t); 8050extern tree cp_build_modify_expr (location_t, tree, 8051 enum tree_code, tree, 8052 tsubst_flags_t); 8053extern tree convert_for_initialization (tree, tree, tree, int, 8054 impl_conv_rhs, tree, int, 8055 tsubst_flags_t); 8056extern int comp_ptr_ttypes (tree, tree); 8057extern bool comp_ptr_ttypes_const (tree, tree, compare_bounds_t); 8058extern bool error_type_p (const_tree); 8059extern bool ptr_reasonably_similar (const_tree, const_tree); 8060extern tree build_ptrmemfunc (tree, tree, int, bool, 8061 tsubst_flags_t); 8062extern int cp_type_quals (const_tree); 8063extern int type_memfn_quals (const_tree); 8064extern cp_ref_qualifier type_memfn_rqual (const_tree); 8065extern tree apply_memfn_quals (tree, cp_cv_quals, 8066 cp_ref_qualifier = REF_QUAL_NONE); 8067extern bool cp_has_mutable_p (const_tree); 8068extern bool at_least_as_qualified_p (const_tree, const_tree); 8069extern void cp_apply_type_quals_to_decl (int, tree); 8070extern tree build_ptrmemfunc1 (tree, tree, tree); 8071extern void expand_ptrmemfunc_cst (tree, tree *, tree *); 8072extern tree type_after_usual_arithmetic_conversions (tree, tree); 8073extern tree common_pointer_type (tree, tree); 8074extern tree composite_pointer_type (const op_location_t &, 8075 tree, tree, tree, tree, 8076 composite_pointer_operation, 8077 tsubst_flags_t); 8078extern tree merge_types (tree, tree); 8079extern tree strip_array_domain (tree); 8080extern tree check_return_expr (tree, bool *); 8081extern tree spaceship_type (tree, tsubst_flags_t = tf_warning_or_error); 8082extern tree genericize_spaceship (location_t, tree, tree, tree); 8083extern tree cp_build_binary_op (const op_location_t &, 8084 enum tree_code, tree, tree, 8085 tsubst_flags_t); 8086extern tree build_x_vec_perm_expr (location_t, 8087 tree, tree, tree, 8088 tsubst_flags_t); 8089extern tree build_x_shufflevector (location_t, 8090 vec<tree, va_gc> *, 8091 tsubst_flags_t); 8092#define cxx_sizeof(T) cxx_sizeof_or_alignof_type (input_location, T, SIZEOF_EXPR, false, true) 8093extern tree build_simple_component_ref (tree, tree); 8094extern tree build_ptrmemfunc_access_expr (tree, tree); 8095extern tree build_address (tree); 8096extern tree build_nop (tree, tree); 8097extern tree non_reference (tree); 8098extern tree lookup_anon_field (tree, tree); 8099extern bool invalid_nonstatic_memfn_p (location_t, tree, 8100 tsubst_flags_t); 8101extern tree convert_member_func_to_ptr (tree, tree, tsubst_flags_t); 8102extern tree convert_ptrmem (tree, tree, bool, bool, 8103 tsubst_flags_t); 8104extern int lvalue_or_else (tree, enum lvalue_use, 8105 tsubst_flags_t); 8106extern void check_template_keyword (tree); 8107extern bool check_raw_literal_operator (const_tree decl); 8108extern bool check_literal_operator_args (const_tree, bool *, bool *); 8109extern void maybe_warn_about_useless_cast (location_t, tree, tree, 8110 tsubst_flags_t); 8111extern tree cp_perform_integral_promotions (tree, tsubst_flags_t); 8112 8113extern tree finish_left_unary_fold_expr (tree, int); 8114extern tree finish_right_unary_fold_expr (tree, int); 8115extern tree finish_binary_fold_expr (tree, tree, int); 8116extern tree treat_lvalue_as_rvalue_p (tree, bool); 8117extern bool decl_in_std_namespace_p (tree); 8118 8119/* in typeck2.cc */ 8120extern void require_complete_eh_spec_types (tree, tree); 8121extern void cxx_incomplete_type_diagnostic (location_t, const_tree, 8122 const_tree, diagnostic_t); 8123inline location_t 8124loc_or_input_loc (location_t loc) 8125{ 8126 return loc == UNKNOWN_LOCATION ? input_location : loc; 8127} 8128 8129inline location_t 8130cp_expr_loc_or_loc (const_tree t, location_t or_loc) 8131{ 8132 location_t loc = cp_expr_location (t); 8133 if (loc == UNKNOWN_LOCATION) 8134 loc = or_loc; 8135 return loc; 8136} 8137 8138inline location_t 8139cp_expr_loc_or_input_loc (const_tree t) 8140{ 8141 return cp_expr_loc_or_loc (t, input_location); 8142} 8143 8144inline void 8145cxx_incomplete_type_diagnostic (const_tree value, const_tree type, 8146 diagnostic_t diag_kind) 8147{ 8148 cxx_incomplete_type_diagnostic (cp_expr_loc_or_input_loc (value), 8149 value, type, diag_kind); 8150} 8151 8152extern void cxx_incomplete_type_error (location_t, const_tree, 8153 const_tree); 8154inline void 8155cxx_incomplete_type_error (const_tree value, const_tree type) 8156{ 8157 cxx_incomplete_type_diagnostic (value, type, DK_ERROR); 8158} 8159 8160extern void cxx_incomplete_type_inform (const_tree); 8161extern tree error_not_base_type (tree, tree); 8162extern tree binfo_or_else (tree, tree); 8163extern void cxx_readonly_error (location_t, tree, 8164 enum lvalue_use); 8165extern void complete_type_check_abstract (tree); 8166extern int abstract_virtuals_error (tree, tree); 8167extern int abstract_virtuals_error (abstract_class_use, tree); 8168extern int abstract_virtuals_error_sfinae (tree, tree, tsubst_flags_t); 8169extern int abstract_virtuals_error_sfinae (abstract_class_use, tree, tsubst_flags_t); 8170 8171extern tree store_init_value (tree, tree, vec<tree, va_gc>**, int); 8172extern tree split_nonconstant_init (tree, tree); 8173extern bool check_narrowing (tree, tree, tsubst_flags_t, 8174 bool = false); 8175extern bool ordinary_char_type_p (tree); 8176extern bool array_string_literal_compatible_p (tree, tree); 8177extern tree digest_init (tree, tree, tsubst_flags_t); 8178extern tree digest_init_flags (tree, tree, int, tsubst_flags_t); 8179extern tree digest_nsdmi_init (tree, tree, tsubst_flags_t); 8180extern tree build_scoped_ref (tree, tree, tree *); 8181extern tree build_x_arrow (location_t, tree, 8182 tsubst_flags_t); 8183extern tree build_m_component_ref (tree, tree, tsubst_flags_t); 8184extern tree build_functional_cast (location_t, tree, tree, 8185 tsubst_flags_t); 8186extern tree add_exception_specifier (tree, tree, tsubst_flags_t); 8187extern tree merge_exception_specifiers (tree, tree); 8188 8189/* in mangle.cc */ 8190extern void init_mangle (void); 8191extern void mangle_decl (tree); 8192extern const char *mangle_type_string (tree); 8193extern tree mangle_typeinfo_for_type (tree); 8194extern tree mangle_typeinfo_string_for_type (tree); 8195extern tree mangle_vtbl_for_type (tree); 8196extern tree mangle_vtt_for_type (tree); 8197extern tree mangle_ctor_vtbl_for_type (tree, tree); 8198extern tree mangle_thunk (tree, int, tree, tree, tree); 8199extern tree mangle_guard_variable (tree); 8200extern tree mangle_tls_init_fn (tree); 8201extern tree mangle_tls_wrapper_fn (tree); 8202extern bool decl_tls_wrapper_p (tree); 8203extern tree mangle_ref_init_variable (tree); 8204extern tree mangle_template_parm_object (tree); 8205extern char *get_mangled_vtable_map_var_name (tree); 8206extern bool mangle_return_type_p (tree); 8207extern tree mangle_decomp (tree, vec<tree> &); 8208extern void mangle_module_substitution (int); 8209extern int mangle_module_component (tree id, bool partition); 8210extern tree mangle_module_global_init (int); 8211 8212/* in dump.cc */ 8213extern bool cp_dump_tree (void *, tree); 8214 8215/* In cp/cp-objcp-common.cc. */ 8216 8217extern alias_set_type cxx_get_alias_set (tree); 8218extern bool cxx_warn_unused_global_decl (const_tree); 8219extern size_t cp_tree_size (enum tree_code); 8220extern bool cp_var_mod_type_p (tree, tree); 8221extern void cxx_initialize_diagnostics (diagnostic_context *); 8222extern int cxx_types_compatible_p (tree, tree); 8223extern bool cxx_block_may_fallthru (const_tree); 8224 8225/* in cp-gimplify.cc */ 8226extern int cp_gimplify_expr (tree *, gimple_seq *, 8227 gimple_seq *); 8228extern void cp_genericize (tree); 8229extern bool cxx_omp_const_qual_no_mutable (tree); 8230extern enum omp_clause_default_kind cxx_omp_predetermined_sharing_1 (tree); 8231extern enum omp_clause_default_kind cxx_omp_predetermined_sharing (tree); 8232extern enum omp_clause_defaultmap_kind cxx_omp_predetermined_mapping (tree); 8233extern tree cxx_omp_clause_default_ctor (tree, tree, tree); 8234extern tree cxx_omp_clause_copy_ctor (tree, tree, tree); 8235extern tree cxx_omp_clause_assign_op (tree, tree, tree); 8236extern tree cxx_omp_clause_dtor (tree, tree); 8237extern void cxx_omp_finish_clause (tree, gimple_seq *, bool); 8238extern bool cxx_omp_privatize_by_reference (const_tree); 8239extern bool cxx_omp_disregard_value_expr (tree, bool); 8240extern void cp_fold_function (tree); 8241extern tree cp_fold_maybe_rvalue (tree, bool); 8242extern tree cp_fold_rvalue (tree); 8243extern tree cp_fully_fold (tree); 8244extern tree cp_fully_fold_init (tree); 8245extern tree predeclare_vla (tree); 8246extern void clear_fold_cache (void); 8247extern tree lookup_hotness_attribute (tree); 8248extern tree process_stmt_hotness_attribute (tree, location_t); 8249extern bool simple_empty_class_p (tree, tree, tree_code); 8250extern tree fold_builtin_source_location (location_t); 8251 8252/* in name-lookup.cc */ 8253extern tree strip_using_decl (tree); 8254extern void diagnose_name_conflict (tree, tree); 8255extern bool dependent_local_decl_p (tree); 8256 8257/* Tell the binding oracle what kind of binding we are looking for. */ 8258 8259enum cp_oracle_request 8260{ 8261 CP_ORACLE_IDENTIFIER 8262}; 8263 8264/* If this is non-NULL, then it is a "binding oracle" which can lazily 8265 create bindings when needed by the C compiler. The oracle is told 8266 the name and type of the binding to create. It can call pushdecl 8267 or the like to ensure the binding is visible; or do nothing, 8268 leaving the binding untouched. c-decl.cc takes note of when the 8269 oracle has been called and will not call it again if it fails to 8270 create a given binding. */ 8271 8272typedef void cp_binding_oracle_function (enum cp_oracle_request, tree identifier); 8273 8274extern cp_binding_oracle_function *cp_binding_oracle; 8275 8276/* Set during diagnostics to record the failed constraint. This is a 8277 TREE_LIST whose VALUE is the constraint and whose PURPOSE are the 8278 instantiation arguments Defined in pt.cc. */ 8279 8280extern tree current_failed_constraint; 8281 8282/* An RAII class to manage the failed constraint. */ 8283 8284struct diagnosing_failed_constraint 8285{ 8286 diagnosing_failed_constraint (tree, tree, bool); 8287 ~diagnosing_failed_constraint (); 8288 static bool replay_errors_p (); 8289 8290 bool diagnosing_error; 8291}; 8292 8293/* in constraint.cc */ 8294 8295extern cp_expr finish_constraint_or_expr (location_t, cp_expr, cp_expr); 8296extern cp_expr finish_constraint_and_expr (location_t, cp_expr, cp_expr); 8297extern cp_expr finish_constraint_primary_expr (cp_expr); 8298extern tree finish_concept_definition (cp_expr, tree); 8299extern tree combine_constraint_expressions (tree, tree); 8300extern tree append_constraint (tree, tree); 8301extern tree get_constraints (const_tree); 8302extern void set_constraints (tree, tree); 8303extern void remove_constraints (tree); 8304extern tree current_template_constraints (void); 8305extern tree associate_classtype_constraints (tree); 8306extern tree build_constraints (tree, tree); 8307extern tree maybe_substitute_reqs_for (tree, const_tree); 8308extern tree get_trailing_function_requirements (tree); 8309extern tree get_shorthand_constraints (tree); 8310 8311extern tree build_concept_id (tree); 8312extern tree build_type_constraint (tree, tree, tsubst_flags_t); 8313extern tree build_concept_check (tree, tree, tsubst_flags_t); 8314extern tree build_concept_check (tree, tree, tree, tsubst_flags_t); 8315 8316extern tree_pair finish_type_constraints (tree, tree, tsubst_flags_t); 8317extern tree build_constrained_parameter (tree, tree, tree = NULL_TREE); 8318extern void placeholder_extract_concept_and_args (tree, tree&, tree&); 8319extern bool equivalent_placeholder_constraints (tree, tree); 8320extern hashval_t hash_placeholder_constraint (tree); 8321extern bool deduce_constrained_parameter (tree, tree&, tree&); 8322extern tree resolve_constraint_check (tree); 8323extern tree check_function_concept (tree); 8324extern tree finish_template_introduction (tree, tree, location_t loc); 8325extern bool valid_requirements_p (tree); 8326extern tree finish_concept_name (tree); 8327extern tree finish_shorthand_constraint (tree, tree); 8328extern tree finish_requires_expr (location_t, tree, tree); 8329extern tree finish_simple_requirement (location_t, tree); 8330extern tree finish_type_requirement (location_t, tree); 8331extern tree finish_compound_requirement (location_t, tree, tree, bool); 8332extern tree finish_nested_requirement (location_t, tree); 8333extern tree tsubst_requires_expr (tree, tree, tsubst_flags_t, tree); 8334extern tree evaluate_requires_expr (tree); 8335extern tree tsubst_constraint (tree, tree, tsubst_flags_t, tree); 8336extern tree tsubst_constraint_info (tree, tree, tsubst_flags_t, tree); 8337extern tree tsubst_parameter_mapping (tree, tree, tsubst_flags_t, tree); 8338 8339struct processing_constraint_expression_sentinel 8340{ 8341 processing_constraint_expression_sentinel (); 8342 ~processing_constraint_expression_sentinel (); 8343}; 8344 8345extern bool processing_constraint_expression_p (); 8346 8347extern tree unpack_concept_check (tree); 8348extern tree evaluate_concept_check (tree); 8349extern bool constraints_satisfied_p (tree, tree = NULL_TREE); 8350extern bool* lookup_subsumption_result (tree, tree); 8351extern bool save_subsumption_result (tree, tree, bool); 8352extern tree find_template_parameters (tree, tree); 8353extern bool equivalent_constraints (tree, tree); 8354extern bool equivalently_constrained (tree, tree); 8355extern bool strictly_subsumes (tree, tree); 8356extern bool weakly_subsumes (tree, tree); 8357extern int more_constrained (tree, tree); 8358extern bool at_least_as_constrained (tree, tree); 8359extern bool constraints_equivalent_p (tree, tree); 8360extern bool atomic_constraints_identical_p (tree, tree); 8361extern hashval_t iterative_hash_constraint (tree, hashval_t); 8362extern hashval_t hash_atomic_constraint (tree); 8363extern void diagnose_constraints (location_t, tree, tree); 8364 8365extern void note_failed_type_completion_for_satisfaction (tree); 8366 8367/* A structural hasher for ATOMIC_CONSTRs. */ 8368 8369struct atom_hasher : default_hash_traits<tree> 8370{ 8371 static hashval_t hash (tree t) 8372 { 8373 return hash_atomic_constraint (t); 8374 } 8375 8376 static bool equal (tree t1, tree t2) 8377 { 8378 return atomic_constraints_identical_p (t1, t2); 8379 } 8380}; 8381 8382/* in logic.cc */ 8383extern bool subsumes (tree, tree); 8384 8385/* In class.cc */ 8386extern void set_current_access_from_decl (tree); 8387extern void cp_finish_injected_record_type (tree); 8388 8389/* in vtable-class-hierarchy.cc */ 8390extern void vtv_compute_class_hierarchy_transitive_closure (void); 8391extern void vtv_generate_init_routine (void); 8392extern void vtv_save_class_info (tree); 8393extern void vtv_recover_class_info (void); 8394extern void vtv_build_vtable_verify_fndecl (void); 8395 8396/* In constexpr.cc */ 8397/* Representation of entries in the constexpr function definition table. */ 8398 8399struct GTY((for_user)) constexpr_fundef { 8400 tree decl; 8401 tree body; 8402 tree parms; 8403 tree result; 8404}; 8405 8406extern void fini_constexpr (void); 8407extern bool literal_type_p (tree); 8408extern void maybe_save_constexpr_fundef (tree); 8409extern void register_constexpr_fundef (const constexpr_fundef &); 8410extern constexpr_fundef *retrieve_constexpr_fundef (tree); 8411extern bool is_valid_constexpr_fn (tree, bool); 8412extern bool check_constexpr_ctor_body (tree, tree, bool); 8413extern tree constexpr_fn_retval (tree); 8414extern tree ensure_literal_type_for_constexpr_object (tree); 8415extern bool potential_constant_expression (tree); 8416extern bool is_constant_expression (tree); 8417extern bool is_rvalue_constant_expression (tree); 8418extern bool is_nondependent_constant_expression (tree); 8419extern bool is_nondependent_static_init_expression (tree); 8420extern bool is_static_init_expression (tree); 8421extern bool potential_rvalue_constant_expression (tree); 8422extern bool require_potential_constant_expression (tree); 8423extern bool require_constant_expression (tree); 8424extern bool require_rvalue_constant_expression (tree); 8425extern bool require_potential_rvalue_constant_expression (tree); 8426extern tree cxx_constant_value (tree, tree = NULL_TREE); 8427extern tree cxx_constant_value_sfinae (tree, tree, tsubst_flags_t); 8428extern void cxx_constant_dtor (tree, tree); 8429extern tree cxx_constant_init (tree, tree = NULL_TREE); 8430extern tree maybe_constant_value (tree, tree = NULL_TREE, bool = false); 8431extern tree maybe_constant_init (tree, tree = NULL_TREE, bool = false); 8432extern tree fold_non_dependent_expr (tree, 8433 tsubst_flags_t = tf_warning_or_error, 8434 bool = false, tree = NULL_TREE); 8435extern tree maybe_fold_non_dependent_expr (tree, 8436 tsubst_flags_t = tf_warning_or_error); 8437extern tree fold_non_dependent_init (tree, 8438 tsubst_flags_t = tf_warning_or_error, 8439 bool = false, tree = NULL_TREE); 8440extern tree fold_simple (tree); 8441extern tree fold_to_constant (tree); 8442extern bool reduced_constant_expression_p (tree); 8443extern bool is_instantiation_of_constexpr (tree); 8444extern bool var_in_constexpr_fn (tree); 8445extern bool var_in_maybe_constexpr_fn (tree); 8446extern bool maybe_constexpr_fn (tree); 8447extern void explain_invalid_constexpr_fn (tree); 8448extern vec<tree> cx_error_context (void); 8449extern tree fold_sizeof_expr (tree); 8450extern void clear_cv_and_fold_caches (void); 8451extern tree unshare_constructor (tree CXX_MEM_STAT_INFO); 8452extern bool decl_implicit_constexpr_p (tree); 8453extern bool replace_decl (tree *, tree, tree); 8454 8455/* An RAII sentinel used to restrict constexpr evaluation so that it 8456 doesn't do anything that causes extra DECL_UID generation. */ 8457 8458struct uid_sensitive_constexpr_evaluation_sentinel 8459{ 8460 temp_override<bool> ovr; 8461 uid_sensitive_constexpr_evaluation_sentinel (); 8462}; 8463 8464/* Used to determine whether uid_sensitive_constexpr_evaluation_p was 8465 called and returned true, indicating that we've restricted constexpr 8466 evaluation in order to avoid UID generation. We use this to control 8467 updates to the fold_cache and cv_cache. */ 8468 8469struct uid_sensitive_constexpr_evaluation_checker 8470{ 8471 const unsigned saved_counter; 8472 uid_sensitive_constexpr_evaluation_checker (); 8473 bool evaluation_restricted_p () const; 8474}; 8475 8476void cp_tree_c_finish_parsing (); 8477 8478/* In cp-ubsan.cc */ 8479extern void cp_ubsan_maybe_instrument_member_call (tree); 8480extern void cp_ubsan_instrument_member_accesses (tree *); 8481extern tree cp_ubsan_maybe_instrument_downcast (location_t, tree, tree, tree); 8482extern tree cp_ubsan_maybe_instrument_cast_to_vbase (location_t, tree, tree); 8483extern void cp_ubsan_maybe_initialize_vtbl_ptrs (tree); 8484 8485/* In coroutines.cc */ 8486extern tree finish_co_return_stmt (location_t, tree); 8487extern tree finish_co_await_expr (location_t, tree); 8488extern tree finish_co_yield_expr (location_t, tree); 8489extern tree coro_validate_builtin_call (tree, 8490 tsubst_flags_t = tf_warning_or_error); 8491extern bool morph_fn_to_coro (tree, tree *, tree *); 8492extern tree coro_get_actor_function (tree); 8493extern tree coro_get_destroy_function (tree); 8494extern tree coro_get_ramp_function (tree); 8495 8496/* Inline bodies. */ 8497 8498inline tree 8499ovl_first (tree node) 8500{ 8501 while (TREE_CODE (node) == OVERLOAD) 8502 node = OVL_FUNCTION (node); 8503 return node; 8504} 8505 8506inline bool 8507type_unknown_p (const_tree expr) 8508{ 8509 return TREE_TYPE (expr) == unknown_type_node; 8510} 8511 8512inline hashval_t 8513named_decl_hash::hash (const value_type decl) 8514{ 8515 tree name = (TREE_CODE (decl) == BINDING_VECTOR 8516 ? BINDING_VECTOR_NAME (decl) : OVL_NAME (decl)); 8517 return name ? IDENTIFIER_HASH_VALUE (name) : 0; 8518} 8519 8520inline bool 8521named_decl_hash::equal (const value_type existing, compare_type candidate) 8522{ 8523 tree name = (TREE_CODE (existing) == BINDING_VECTOR 8524 ? BINDING_VECTOR_NAME (existing) : OVL_NAME (existing)); 8525 return candidate == name; 8526} 8527 8528inline bool 8529null_node_p (const_tree expr) 8530{ 8531 STRIP_ANY_LOCATION_WRAPPER (expr); 8532 return expr == null_node; 8533} 8534 8535/* True iff T is a variable template declaration. */ 8536inline bool 8537variable_template_p (tree t) 8538{ 8539 if (TREE_CODE (t) != TEMPLATE_DECL) 8540 return false; 8541 if (!PRIMARY_TEMPLATE_P (t)) 8542 return false; 8543 if (tree r = DECL_TEMPLATE_RESULT (t)) 8544 return VAR_P (r); 8545 return false; 8546} 8547 8548/* True iff T is a standard concept definition. This will return 8549 true for both the template and underlying declaration. */ 8550 8551inline bool 8552standard_concept_p (tree t) 8553{ 8554 if (TREE_CODE (t) == TEMPLATE_DECL) 8555 t = DECL_TEMPLATE_RESULT (t); 8556 return TREE_CODE (t) == CONCEPT_DECL; 8557} 8558 8559/* True iff T is a variable concept definition. This will return 8560 true for both the template and the underlying declaration. */ 8561 8562inline bool 8563variable_concept_p (tree t) 8564{ 8565 if (TREE_CODE (t) == TEMPLATE_DECL) 8566 t = DECL_TEMPLATE_RESULT (t); 8567 return VAR_P (t) && DECL_DECLARED_CONCEPT_P (t); 8568} 8569 8570/* True iff T is a function concept definition or an overload set 8571 containing multiple function concepts. This will return true for 8572 both the template and the underlying declaration. */ 8573 8574inline bool 8575function_concept_p (tree t) 8576{ 8577 if (TREE_CODE (t) == OVERLOAD) 8578 t = OVL_FIRST (t); 8579 if (TREE_CODE (t) == TEMPLATE_DECL) 8580 t = DECL_TEMPLATE_RESULT (t); 8581 return TREE_CODE (t) == FUNCTION_DECL && DECL_DECLARED_CONCEPT_P (t); 8582} 8583 8584/* True iff T is a standard, variable, or function concept. */ 8585 8586inline bool 8587concept_definition_p (tree t) 8588{ 8589 if (t == error_mark_node) 8590 return false; 8591 8592 /* Adjust for function concept overloads. */ 8593 if (TREE_CODE (t) == OVERLOAD) 8594 t = OVL_FIRST (t); 8595 8596 /* See through templates. */ 8597 if (TREE_CODE (t) == TEMPLATE_DECL) 8598 t = DECL_TEMPLATE_RESULT (t); 8599 8600 /* The obvious and easy case. */ 8601 if (TREE_CODE (t) == CONCEPT_DECL) 8602 return true; 8603 8604 /* Definitely not a concept. */ 8605 if (!VAR_OR_FUNCTION_DECL_P (t)) 8606 return false; 8607 if (!DECL_LANG_SPECIFIC (t)) 8608 return false; 8609 8610 return DECL_DECLARED_CONCEPT_P (t); 8611} 8612 8613/* Same as above, but for const trees. */ 8614 8615inline bool 8616concept_definition_p (const_tree t) 8617{ 8618 return concept_definition_p (const_cast<tree> (t)); 8619} 8620 8621/* True if t is an expression that checks a concept. */ 8622 8623inline bool 8624concept_check_p (const_tree t) 8625{ 8626 if (TREE_CODE (t) == CALL_EXPR) 8627 t = CALL_EXPR_FN (t); 8628 if (t && TREE_CODE (t) == TEMPLATE_ID_EXPR) 8629 return concept_definition_p (TREE_OPERAND (t, 0)); 8630 return false; 8631} 8632 8633/* Helpers for IMPLICIT_RVALUE_P to look through automatic dereference. */ 8634 8635inline bool 8636implicit_rvalue_p (const_tree t) 8637{ 8638 if (REFERENCE_REF_P (t)) 8639 t = TREE_OPERAND (t, 0); 8640 return ((TREE_CODE (t) == NON_LVALUE_EXPR 8641 || TREE_CODE (t) == STATIC_CAST_EXPR) 8642 && IMPLICIT_RVALUE_P (t)); 8643} 8644inline tree 8645set_implicit_rvalue_p (tree ot) 8646{ 8647 tree t = ot; 8648 if (REFERENCE_REF_P (t)) 8649 t = TREE_OPERAND (t, 0); 8650 IMPLICIT_RVALUE_P (t) = 1; 8651 return ot; 8652} 8653 8654/* True if t is a "constrained auto" type-specifier. */ 8655 8656inline bool 8657is_constrained_auto (const_tree t) 8658{ 8659 return is_auto (t) && PLACEHOLDER_TYPE_CONSTRAINTS_INFO (t); 8660} 8661 8662/* True if CODE, a tree code, denotes a tree whose operand is not evaluated 8663 as per [expr.context], i.e., an operand to sizeof, typeof, decltype, or 8664 alignof. */ 8665 8666inline bool 8667unevaluated_p (tree_code code) 8668{ 8669 return (code == DECLTYPE_TYPE 8670 || code == ALIGNOF_EXPR 8671 || code == SIZEOF_EXPR 8672 || code == NOEXCEPT_EXPR 8673 || code == REQUIRES_EXPR); 8674} 8675 8676/* RAII class to push/pop the access scope for T. */ 8677 8678struct push_access_scope_guard 8679{ 8680 tree decl; 8681 push_access_scope_guard (tree t) 8682 : decl (t) 8683 { 8684 if (VAR_OR_FUNCTION_DECL_P (decl) 8685 || TREE_CODE (decl) == TYPE_DECL) 8686 push_access_scope (decl); 8687 else 8688 decl = NULL_TREE; 8689 } 8690 ~push_access_scope_guard () 8691 { 8692 if (decl) 8693 pop_access_scope (decl); 8694 } 8695}; 8696 8697#if CHECKING_P 8698namespace selftest { 8699 extern void run_cp_tests (void); 8700 8701 /* Declarations for specific families of tests within cp, 8702 by source file, in alphabetical order. */ 8703 extern void cp_pt_cc_tests (); 8704 extern void cp_tree_cc_tests (void); 8705} // namespace selftest 8706#endif /* #if CHECKING_P */ 8707 8708/* -- end of C++ */ 8709 8710#endif /* ! GCC_CP_TREE_H */ 8711