1 /* Definitions for C++ parsing and type checking. 2 Copyright (C) 1987-2018 Free Software Foundation, Inc. 3 Contributed by Michael Tiemann (tiemann@cygnus.com) 4 5 This file is part of GCC. 6 7 GCC is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3, or (at your option) 10 any later version. 11 12 GCC is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with GCC; see the file COPYING3. If not see 19 <http://www.gnu.org/licenses/>. */ 20 21 #ifndef GCC_CP_TREE_H 22 #define GCC_CP_TREE_H 23 24 #include "tm.h" 25 #include "hard-reg-set.h" 26 #include "function.h" 27 28 /* In order for the format checking to accept the C++ front end 29 diagnostic framework extensions, you must include this file before 30 diagnostic-core.h, not after. We override the definition of GCC_DIAG_STYLE 31 in c-common.h. */ 32 #undef GCC_DIAG_STYLE 33 #define GCC_DIAG_STYLE __gcc_cxxdiag__ 34 #if defined(GCC_DIAGNOSTIC_CORE_H) || defined (GCC_C_COMMON_H) 35 #error \ 36 In order for the format checking to accept the C++ front end diagnostic \ 37 framework extensions, you must include this file before diagnostic-core.h and \ 38 c-common.h, not after. 39 #endif 40 #include "c-family/c-common.h" 41 #include "diagnostic.h" 42 43 /* A tree node, together with a location, so that we can track locations 44 (and ranges) during parsing. 45 46 The location is redundant for node kinds that have locations, 47 but not all node kinds do (e.g. constants, and references to 48 params, locals, etc), so we stash a copy here. */ 49 50 class cp_expr 51 { 52 public: 53 cp_expr () : 54 m_value (NULL), m_loc (UNKNOWN_LOCATION) {} 55 56 cp_expr (tree value) : 57 m_value (value), m_loc (EXPR_LOCATION (m_value)) {} 58 59 cp_expr (tree value, location_t loc): 60 m_value (value), m_loc (loc) {} 61 62 cp_expr (const cp_expr &other) : 63 m_value (other.m_value), m_loc (other.m_loc) {} 64 65 /* Implicit conversions to tree. */ 66 operator tree () const { return m_value; } 67 tree & operator* () { return m_value; } 68 tree operator* () const { return m_value; } 69 tree & operator-> () { return m_value; } 70 tree operator-> () const { return m_value; } 71 72 tree get_value () const { return m_value; } 73 location_t get_location () const { return m_loc; } 74 location_t get_start () const 75 { 76 source_range src_range = get_range_from_loc (line_table, m_loc); 77 return src_range.m_start; 78 } 79 location_t get_finish () const 80 { 81 source_range src_range = get_range_from_loc (line_table, m_loc); 82 return src_range.m_finish; 83 } 84 85 void set_location (location_t loc) 86 { 87 protected_set_expr_location (m_value, loc); 88 m_loc = loc; 89 } 90 91 void set_range (location_t start, location_t finish) 92 { 93 set_location (make_location (m_loc, start, finish)); 94 } 95 96 cp_expr& maybe_add_location_wrapper () 97 { 98 m_value = maybe_wrap_with_location (m_value, m_loc); 99 return *this; 100 } 101 102 private: 103 tree m_value; 104 location_t m_loc; 105 }; 106 107 inline bool 108 operator == (const cp_expr &lhs, tree rhs) 109 { 110 return lhs.get_value () == rhs; 111 } 112 113 114 enum cp_tree_index 115 { 116 CPTI_WCHAR_DECL, 117 CPTI_VTABLE_ENTRY_TYPE, 118 CPTI_DELTA_TYPE, 119 CPTI_VTABLE_INDEX_TYPE, 120 CPTI_CLEANUP_TYPE, 121 CPTI_VTT_PARM_TYPE, 122 123 CPTI_CLASS_TYPE, 124 CPTI_UNKNOWN_TYPE, 125 CPTI_INIT_LIST_TYPE, 126 CPTI_VTBL_TYPE, 127 CPTI_VTBL_PTR_TYPE, 128 CPTI_STD, 129 CPTI_ABI, 130 CPTI_GLOBAL, 131 CPTI_GLOBAL_TYPE, 132 CPTI_CONST_TYPE_INFO_TYPE, 133 CPTI_TYPE_INFO_PTR_TYPE, 134 CPTI_ABORT_FNDECL, 135 CPTI_AGGR_TAG, 136 CPTI_CONV_OP_MARKER, 137 138 CPTI_CTOR_IDENTIFIER, 139 CPTI_COMPLETE_CTOR_IDENTIFIER, 140 CPTI_BASE_CTOR_IDENTIFIER, 141 CPTI_DTOR_IDENTIFIER, 142 CPTI_COMPLETE_DTOR_IDENTIFIER, 143 CPTI_BASE_DTOR_IDENTIFIER, 144 CPTI_DELETING_DTOR_IDENTIFIER, 145 CPTI_CONV_OP_IDENTIFIER, 146 CPTI_DELTA_IDENTIFIER, 147 CPTI_IN_CHARGE_IDENTIFIER, 148 CPTI_VTT_PARM_IDENTIFIER, 149 CPTI_THIS_IDENTIFIER, 150 CPTI_PFN_IDENTIFIER, 151 CPTI_VPTR_IDENTIFIER, 152 CPTI_GLOBAL_IDENTIFIER, 153 CPTI_STD_IDENTIFIER, 154 CPTI_ANON_IDENTIFIER, 155 CPTI_AUTO_IDENTIFIER, 156 CPTI_DECLTYPE_AUTO_IDENTIFIER, 157 CPTI_INIT_LIST_IDENTIFIER, 158 159 CPTI_LANG_NAME_C, 160 CPTI_LANG_NAME_CPLUSPLUS, 161 162 CPTI_EMPTY_EXCEPT_SPEC, 163 CPTI_NOEXCEPT_TRUE_SPEC, 164 CPTI_NOEXCEPT_FALSE_SPEC, 165 CPTI_NOEXCEPT_DEFERRED_SPEC, 166 167 CPTI_TERMINATE_FN, 168 CPTI_CALL_UNEXPECTED_FN, 169 CPTI_GET_EXCEPTION_PTR_FN, 170 CPTI_BEGIN_CATCH_FN, 171 CPTI_END_CATCH_FN, 172 CPTI_ALLOCATE_EXCEPTION_FN, 173 CPTI_FREE_EXCEPTION_FN, 174 CPTI_THROW_FN, 175 CPTI_RETHROW_FN, 176 CPTI_ATEXIT_FN_PTR_TYPE, 177 CPTI_ATEXIT, 178 CPTI_DSO_HANDLE, 179 CPTI_DCAST, 180 181 CPTI_NULLPTR, 182 CPTI_NULLPTR_TYPE, 183 184 CPTI_ALIGN_TYPE, 185 186 CPTI_ANY_TARG, 187 188 CPTI_MAX 189 }; 190 191 extern GTY(()) tree cp_global_trees[CPTI_MAX]; 192 193 #define wchar_decl_node cp_global_trees[CPTI_WCHAR_DECL] 194 #define vtable_entry_type cp_global_trees[CPTI_VTABLE_ENTRY_TYPE] 195 /* The type used to represent an offset by which to adjust the `this' 196 pointer in pointer-to-member types. */ 197 #define delta_type_node cp_global_trees[CPTI_DELTA_TYPE] 198 /* The type used to represent an index into the vtable. */ 199 #define vtable_index_type cp_global_trees[CPTI_VTABLE_INDEX_TYPE] 200 201 #define class_type_node cp_global_trees[CPTI_CLASS_TYPE] 202 #define unknown_type_node cp_global_trees[CPTI_UNKNOWN_TYPE] 203 #define init_list_type_node cp_global_trees[CPTI_INIT_LIST_TYPE] 204 #define vtbl_type_node cp_global_trees[CPTI_VTBL_TYPE] 205 #define vtbl_ptr_type_node cp_global_trees[CPTI_VTBL_PTR_TYPE] 206 #define std_node cp_global_trees[CPTI_STD] 207 #define abi_node cp_global_trees[CPTI_ABI] 208 #define global_namespace cp_global_trees[CPTI_GLOBAL] 209 #define global_type_node cp_global_trees[CPTI_GLOBAL_TYPE] 210 #define const_type_info_type_node cp_global_trees[CPTI_CONST_TYPE_INFO_TYPE] 211 #define type_info_ptr_type cp_global_trees[CPTI_TYPE_INFO_PTR_TYPE] 212 #define conv_op_marker cp_global_trees[CPTI_CONV_OP_MARKER] 213 #define abort_fndecl cp_global_trees[CPTI_ABORT_FNDECL] 214 #define current_aggr cp_global_trees[CPTI_AGGR_TAG] 215 #define nullptr_node cp_global_trees[CPTI_NULLPTR] 216 #define nullptr_type_node cp_global_trees[CPTI_NULLPTR_TYPE] 217 /* std::align_val_t */ 218 #define align_type_node cp_global_trees[CPTI_ALIGN_TYPE] 219 220 /* We cache these tree nodes so as to call get_identifier less frequently. 221 For identifiers for functions, including special member functions such 222 as ctors and assignment operators, the nodes can be used (among other 223 things) to iterate over their overloads defined by/for a type. For 224 example: 225 226 tree ovlid = assign_op_identifier; 227 tree overloads = get_class_binding (type, ovlid); 228 for (ovl_iterator it (overloads); it; ++it) { ... } 229 230 iterates over the set of implicitly and explicitly defined overloads 231 of the assignment operator for type (including the copy and move 232 assignment operators, whether deleted or not). */ 233 234 /* The name of a constructor that takes an in-charge parameter to 235 decide whether or not to construct virtual base classes. */ 236 #define ctor_identifier cp_global_trees[CPTI_CTOR_IDENTIFIER] 237 /* The name of a constructor that constructs virtual base classes. */ 238 #define complete_ctor_identifier cp_global_trees[CPTI_COMPLETE_CTOR_IDENTIFIER] 239 /* The name of a constructor that does not construct virtual base classes. */ 240 #define base_ctor_identifier cp_global_trees[CPTI_BASE_CTOR_IDENTIFIER] 241 /* The name of a destructor that takes an in-charge parameter to 242 decide whether or not to destroy virtual base classes and whether 243 or not to delete the object. */ 244 #define dtor_identifier cp_global_trees[CPTI_DTOR_IDENTIFIER] 245 /* The name of a destructor that destroys virtual base classes. */ 246 #define complete_dtor_identifier cp_global_trees[CPTI_COMPLETE_DTOR_IDENTIFIER] 247 /* The name of a destructor that does not destroy virtual base 248 classes. */ 249 #define base_dtor_identifier cp_global_trees[CPTI_BASE_DTOR_IDENTIFIER] 250 /* The name of a destructor that destroys virtual base classes, and 251 then deletes the entire object. */ 252 #define deleting_dtor_identifier cp_global_trees[CPTI_DELETING_DTOR_IDENTIFIER] 253 254 #define ovl_op_identifier(ISASS, CODE) (OVL_OP_INFO(ISASS, CODE)->identifier) 255 #define assign_op_identifier (ovl_op_info[true][OVL_OP_NOP_EXPR].identifier) 256 #define call_op_identifier (ovl_op_info[false][OVL_OP_CALL_EXPR].identifier) 257 /* The name used for conversion operators -- but note that actual 258 conversion functions use special identifiers outside the identifier 259 table. */ 260 #define conv_op_identifier cp_global_trees[CPTI_CONV_OP_IDENTIFIER] 261 262 #define delta_identifier cp_global_trees[CPTI_DELTA_IDENTIFIER] 263 #define in_charge_identifier cp_global_trees[CPTI_IN_CHARGE_IDENTIFIER] 264 /* The name of the parameter that contains a pointer to the VTT to use 265 for this subobject constructor or destructor. */ 266 #define vtt_parm_identifier cp_global_trees[CPTI_VTT_PARM_IDENTIFIER] 267 #define this_identifier cp_global_trees[CPTI_THIS_IDENTIFIER] 268 #define pfn_identifier cp_global_trees[CPTI_PFN_IDENTIFIER] 269 #define vptr_identifier cp_global_trees[CPTI_VPTR_IDENTIFIER] 270 /* The name of the ::, std & anon namespaces. */ 271 #define global_identifier cp_global_trees[CPTI_GLOBAL_IDENTIFIER] 272 #define std_identifier cp_global_trees[CPTI_STD_IDENTIFIER] 273 #define anon_identifier cp_global_trees[CPTI_ANON_IDENTIFIER] 274 /* auto and declspec(auto) identifiers. */ 275 #define auto_identifier cp_global_trees[CPTI_AUTO_IDENTIFIER] 276 #define decltype_auto_identifier cp_global_trees[CPTI_DECLTYPE_AUTO_IDENTIFIER] 277 #define init_list_identifier cp_global_trees[CPTI_INIT_LIST_IDENTIFIER] 278 #define lang_name_c cp_global_trees[CPTI_LANG_NAME_C] 279 #define lang_name_cplusplus cp_global_trees[CPTI_LANG_NAME_CPLUSPLUS] 280 281 /* Exception specifiers used for throw(), noexcept(true), 282 noexcept(false) and deferred noexcept. We rely on these being 283 uncloned. */ 284 #define empty_except_spec cp_global_trees[CPTI_EMPTY_EXCEPT_SPEC] 285 #define noexcept_true_spec cp_global_trees[CPTI_NOEXCEPT_TRUE_SPEC] 286 #define noexcept_false_spec cp_global_trees[CPTI_NOEXCEPT_FALSE_SPEC] 287 #define noexcept_deferred_spec cp_global_trees[CPTI_NOEXCEPT_DEFERRED_SPEC] 288 289 /* Exception handling function declarations. */ 290 #define terminate_fn cp_global_trees[CPTI_TERMINATE_FN] 291 #define call_unexpected_fn cp_global_trees[CPTI_CALL_UNEXPECTED_FN] 292 #define get_exception_ptr_fn cp_global_trees[CPTI_GET_EXCEPTION_PTR_FN] 293 #define begin_catch_fn cp_global_trees[CPTI_BEGIN_CATCH_FN] 294 #define end_catch_fn cp_global_trees[CPTI_END_CATCH_FN] 295 #define allocate_exception_fn cp_global_trees[CPTI_ALLOCATE_EXCEPTION_FN] 296 #define free_exception_fn cp_global_trees[CPTI_FREE_EXCEPTION_FN] 297 #define throw_fn cp_global_trees[CPTI_THROW_FN] 298 #define rethrow_fn cp_global_trees[CPTI_RETHROW_FN] 299 300 /* The type of the function-pointer argument to "__cxa_atexit" (or 301 "std::atexit", if "__cxa_atexit" is not being used). */ 302 #define atexit_fn_ptr_type_node cp_global_trees[CPTI_ATEXIT_FN_PTR_TYPE] 303 304 /* A pointer to `std::atexit'. */ 305 #define atexit_node cp_global_trees[CPTI_ATEXIT] 306 307 /* A pointer to `__dso_handle'. */ 308 #define dso_handle_node cp_global_trees[CPTI_DSO_HANDLE] 309 310 /* The declaration of the dynamic_cast runtime. */ 311 #define dynamic_cast_node cp_global_trees[CPTI_DCAST] 312 313 /* The type of a destructor. */ 314 #define cleanup_type cp_global_trees[CPTI_CLEANUP_TYPE] 315 316 /* The type of the vtt parameter passed to subobject constructors and 317 destructors. */ 318 #define vtt_parm_type cp_global_trees[CPTI_VTT_PARM_TYPE] 319 320 /* A node which matches any template argument. */ 321 #define any_targ_node cp_global_trees[CPTI_ANY_TARG] 322 323 /* Node to indicate default access. This must be distinct from the 324 access nodes in tree.h. */ 325 326 #define access_default_node null_node 327 328 329 #include "name-lookup.h" 330 331 /* Usage of TREE_LANG_FLAG_?: 332 0: IDENTIFIER_KIND_BIT_0 (in IDENTIFIER_NODE) 333 NEW_EXPR_USE_GLOBAL (in NEW_EXPR). 334 COND_EXPR_IS_VEC_DELETE (in COND_EXPR). 335 DELETE_EXPR_USE_GLOBAL (in DELETE_EXPR). 336 COMPOUND_EXPR_OVERLOADED (in COMPOUND_EXPR). 337 CLEANUP_P (in TRY_BLOCK) 338 AGGR_INIT_VIA_CTOR_P (in AGGR_INIT_EXPR) 339 PTRMEM_OK_P (in ADDR_EXPR, OFFSET_REF, SCOPE_REF) 340 PAREN_STRING_LITERAL (in STRING_CST) 341 CP_DECL_THREAD_LOCAL_P (in VAR_DECL) 342 KOENIG_LOOKUP_P (in CALL_EXPR) 343 STATEMENT_LIST_NO_SCOPE (in STATEMENT_LIST). 344 EXPR_STMT_STMT_EXPR_RESULT (in EXPR_STMT) 345 STMT_EXPR_NO_SCOPE (in STMT_EXPR) 346 BIND_EXPR_TRY_BLOCK (in BIND_EXPR) 347 TYPENAME_IS_ENUM_P (in TYPENAME_TYPE) 348 OMP_FOR_GIMPLIFYING_P (in OMP_FOR, OMP_SIMD, OMP_DISTRIBUTE, 349 and OMP_TASKLOOP) 350 BASELINK_QUALIFIED_P (in BASELINK) 351 TARGET_EXPR_IMPLICIT_P (in TARGET_EXPR) 352 TEMPLATE_PARM_PARAMETER_PACK (in TEMPLATE_PARM_INDEX) 353 ATTR_IS_DEPENDENT (in the TREE_LIST for an attribute) 354 ABI_TAG_IMPLICIT (in the TREE_LIST for the argument of abi_tag) 355 LAMBDA_CAPTURE_EXPLICIT_P (in a TREE_LIST in LAMBDA_EXPR_CAPTURE_LIST) 356 CONSTRUCTOR_IS_DIRECT_INIT (in CONSTRUCTOR) 357 LAMBDA_EXPR_CAPTURES_THIS_P (in LAMBDA_EXPR) 358 DECLTYPE_FOR_LAMBDA_CAPTURE (in DECLTYPE_TYPE) 359 VEC_INIT_EXPR_IS_CONSTEXPR (in VEC_INIT_EXPR) 360 DECL_OVERRIDE_P (in FUNCTION_DECL) 361 IMPLICIT_CONV_EXPR_DIRECT_INIT (in IMPLICIT_CONV_EXPR) 362 TRANSACTION_EXPR_IS_STMT (in TRANSACTION_EXPR) 363 CONVERT_EXPR_VBASE_PATH (in CONVERT_EXPR) 364 PACK_EXPANSION_LOCAL_P (in *_PACK_EXPANSION) 365 TINFO_HAS_ACCESS_ERRORS (in TEMPLATE_INFO) 366 SIZEOF_EXPR_TYPE_P (in SIZEOF_EXPR) 367 COMPOUND_REQ_NOEXCEPT_P (in COMPOUND_REQ) 368 WILDCARD_PACK_P (in WILDCARD_DECL) 369 BLOCK_OUTER_CURLY_BRACE_P (in BLOCK) 370 FOLD_EXPR_MODOP_P (*_FOLD_EXPR) 371 IF_STMT_CONSTEXPR_P (IF_STMT) 372 TEMPLATE_TYPE_PARM_FOR_CLASS (TEMPLATE_TYPE_PARM) 373 DECL_NAMESPACE_INLINE_P (in NAMESPACE_DECL) 374 SWITCH_STMT_ALL_CASES_P (in SWITCH_STMT) 375 REINTERPRET_CAST_P (in NOP_EXPR) 376 ALIGNOF_EXPR_STD_P (in ALIGNOF_EXPR) 377 1: IDENTIFIER_KIND_BIT_1 (in IDENTIFIER_NODE) 378 TI_PENDING_TEMPLATE_FLAG. 379 TEMPLATE_PARMS_FOR_INLINE. 380 DELETE_EXPR_USE_VEC (in DELETE_EXPR). 381 (TREE_CALLS_NEW) (in _EXPR or _REF) (commented-out). 382 ICS_ELLIPSIS_FLAG (in _CONV) 383 DECL_INITIALIZED_P (in VAR_DECL) 384 TYPENAME_IS_CLASS_P (in TYPENAME_TYPE) 385 STMT_IS_FULL_EXPR_P (in _STMT) 386 TARGET_EXPR_LIST_INIT_P (in TARGET_EXPR) 387 LAMBDA_EXPR_MUTABLE_P (in LAMBDA_EXPR) 388 DECL_FINAL_P (in FUNCTION_DECL) 389 QUALIFIED_NAME_IS_TEMPLATE (in SCOPE_REF) 390 DECLTYPE_FOR_INIT_CAPTURE (in DECLTYPE_TYPE) 391 CONSTRUCTOR_NO_IMPLICIT_ZERO (in CONSTRUCTOR) 392 TINFO_USED_TEMPLATE_ID (in TEMPLATE_INFO) 393 PACK_EXPANSION_SIZEOF_P (in *_PACK_EXPANSION) 394 OVL_USING_P (in OVERLOAD) 395 IMPLICIT_CONV_EXPR_NONTYPE_ARG (in IMPLICIT_CONV_EXPR) 396 2: IDENTIFIER_KIND_BIT_2 (in IDENTIFIER_NODE) 397 ICS_THIS_FLAG (in _CONV) 398 DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (in VAR_DECL) 399 STATEMENT_LIST_TRY_BLOCK (in STATEMENT_LIST) 400 TYPENAME_IS_RESOLVING_P (in TYPE_NAME_TYPE) 401 TARGET_EXPR_DIRECT_INIT_P (in TARGET_EXPR) 402 FNDECL_USED_AUTO (in FUNCTION_DECL) 403 DECLTYPE_FOR_LAMBDA_PROXY (in DECLTYPE_TYPE) 404 REF_PARENTHESIZED_P (in COMPONENT_REF, INDIRECT_REF, SCOPE_REF) 405 AGGR_INIT_ZERO_FIRST (in AGGR_INIT_EXPR) 406 CONSTRUCTOR_MUTABLE_POISON (in CONSTRUCTOR) 407 OVL_HIDDEN_P (in OVERLOAD) 408 SWITCH_STMT_NO_BREAK_P (in SWITCH_STMT) 409 LAMBDA_EXPR_CAPTURE_OPTIMIZED (in LAMBDA_EXPR) 410 3: (TREE_REFERENCE_EXPR) (in NON_LVALUE_EXPR) (commented-out). 411 ICS_BAD_FLAG (in _CONV) 412 FN_TRY_BLOCK_P (in TRY_BLOCK) 413 BIND_EXPR_BODY_BLOCK (in BIND_EXPR) 414 DECL_NONTRIVIALLY_INITIALIZED_P (in VAR_DECL) 415 CALL_EXPR_ORDERED_ARGS (in CALL_EXPR, AGGR_INIT_EXPR) 416 DECLTYPE_FOR_REF_CAPTURE (in DECLTYPE_TYPE) 417 CONSTRUCTOR_C99_COMPOUND_LITERAL (in CONSTRUCTOR) 418 OVL_NESTED_P (in OVERLOAD) 419 4: IDENTIFIER_MARKED (IDENTIFIER_NODEs) 420 TREE_HAS_CONSTRUCTOR (in INDIRECT_REF, SAVE_EXPR, CONSTRUCTOR, 421 CALL_EXPR, or FIELD_DECL). 422 DECL_TINFO_P (in VAR_DECL) 423 FUNCTION_REF_QUALIFIED (in FUNCTION_TYPE, METHOD_TYPE) 424 OVL_LOOKUP_P (in OVERLOAD) 425 LOOKUP_FOUND_P (in RECORD_TYPE, UNION_TYPE, NAMESPACE_DECL) 426 5: IDENTIFIER_VIRTUAL_P (in IDENTIFIER_NODE) 427 DECL_VTABLE_OR_VTT_P (in VAR_DECL) 428 FUNCTION_RVALUE_QUALIFIED (in FUNCTION_TYPE, METHOD_TYPE) 429 CALL_EXPR_REVERSE_ARGS (in CALL_EXPR, AGGR_INIT_EXPR) 430 CONSTRUCTOR_PLACEHOLDER_BOUNDARY (in CONSTRUCTOR) 431 6: IDENTIFIER_REPO_CHOSEN (in IDENTIFIER_NODE) 432 DECL_CONSTRUCTION_VTABLE_P (in VAR_DECL) 433 TYPE_MARKED_P (in _TYPE) 434 RANGE_FOR_IVDEP (in RANGE_FOR_STMT) 435 CALL_EXPR_OPERATOR_SYNTAX (in CALL_EXPR, AGGR_INIT_EXPR) 436 437 Usage of TYPE_LANG_FLAG_?: 438 0: TYPE_DEPENDENT_P 439 1: TYPE_HAS_USER_CONSTRUCTOR. 440 2: TYPE_HAS_LATE_RETURN_TYPE (in FUNCTION_TYPE, METHOD_TYPE) 441 TYPE_PTRMEMFUNC_FLAG (in RECORD_TYPE) 442 4: TYPE_HAS_NONTRIVIAL_DESTRUCTOR 443 5: CLASS_TYPE_P (in RECORD_TYPE and UNION_TYPE) 444 ENUM_FIXED_UNDERLYING_TYPE_P (in ENUMERAL_TYPE) 445 AUTO_IS_DECLTYPE (in TEMPLATE_TYPE_PARM) 446 REFERENCE_VLA_OK (in REFERENCE_TYPE) 447 6: TYPE_DEPENDENT_P_VALID 448 449 Usage of DECL_LANG_FLAG_?: 450 0: DECL_ERROR_REPORTED (in VAR_DECL). 451 DECL_TEMPLATE_PARM_P (in PARM_DECL, CONST_DECL, TYPE_DECL, or TEMPLATE_DECL) 452 DECL_LOCAL_FUNCTION_P (in FUNCTION_DECL) 453 DECL_MUTABLE_P (in FIELD_DECL) 454 DECL_DEPENDENT_P (in USING_DECL) 455 LABEL_DECL_BREAK (in LABEL_DECL) 456 1: C_TYPEDEF_EXPLICITLY_SIGNED (in TYPE_DECL). 457 DECL_TEMPLATE_INSTANTIATED (in a VAR_DECL or a FUNCTION_DECL) 458 DECL_MEMBER_TEMPLATE_P (in TEMPLATE_DECL) 459 USING_DECL_TYPENAME_P (in USING_DECL) 460 DECL_VLA_CAPTURE_P (in FIELD_DECL) 461 DECL_ARRAY_PARAMETER_P (in PARM_DECL) 462 LABEL_DECL_CONTINUE (in LABEL_DECL) 463 2: DECL_THIS_EXTERN (in VAR_DECL or FUNCTION_DECL). 464 DECL_IMPLICIT_TYPEDEF_P (in a TYPE_DECL) 465 DECL_CONSTRAINT_VAR_P (in a PARM_DECL) 466 TEMPLATE_DECL_COMPLEX_ALIAS_P (in TEMPLATE_DECL) 467 DECL_INSTANTIATING_NSDMI_P (in a FIELD_DECL) 468 LABEL_DECL_CDTOR (in LABEL_DECL) 469 3: DECL_IN_AGGR_P. 470 4: DECL_C_BIT_FIELD (in a FIELD_DECL) 471 DECL_ANON_UNION_VAR_P (in a VAR_DECL) 472 DECL_SELF_REFERENCE_P (in a TYPE_DECL) 473 DECL_INVALID_OVERRIDER_P (in a FUNCTION_DECL) 474 5: DECL_INTERFACE_KNOWN. 475 6: DECL_THIS_STATIC (in VAR_DECL or FUNCTION_DECL). 476 DECL_FIELD_IS_BASE (in FIELD_DECL) 477 TYPE_DECL_ALIAS_P (in TYPE_DECL) 478 7: DECL_DEAD_FOR_LOCAL (in VAR_DECL). 479 DECL_THUNK_P (in a member FUNCTION_DECL) 480 DECL_NORMAL_CAPTURE_P (in FIELD_DECL) 481 8: DECL_DECLARED_CONSTEXPR_P (in VAR_DECL, FUNCTION_DECL) 482 483 Usage of language-independent fields in a language-dependent manner: 484 485 TYPE_ALIAS_SET 486 This field is used by TYPENAME_TYPEs, TEMPLATE_TYPE_PARMs, and so 487 forth as a substitute for the mark bits provided in `lang_type'. 488 At present, only the six low-order bits are used. 489 490 TYPE_LANG_SLOT_1 491 For a FUNCTION_TYPE or METHOD_TYPE, this is TYPE_RAISES_EXCEPTIONS. 492 For a POINTER_TYPE (to a METHOD_TYPE), this is TYPE_PTRMEMFUNC_TYPE. 493 For an ENUMERAL_TYPE, BOUND_TEMPLATE_TEMPLATE_PARM_TYPE, 494 RECORD_TYPE or UNION_TYPE this is TYPE_TEMPLATE_INFO, 495 496 BINFO_VIRTUALS 497 For a binfo, this is a TREE_LIST. There is an entry for each 498 virtual function declared either in BINFO or its direct and 499 indirect primary bases. 500 501 The BV_DELTA of each node gives the amount by which to adjust the 502 `this' pointer when calling the function. If the method is an 503 overridden version of a base class method, then it is assumed 504 that, prior to adjustment, the this pointer points to an object 505 of the base class. 506 507 The BV_VCALL_INDEX of each node, if non-NULL, gives the vtable 508 index of the vcall offset for this entry. 509 510 The BV_FN is the declaration for the virtual function itself. 511 512 If BV_LOST_PRIMARY is set, it means that this entry is for a lost 513 primary virtual base and can be left null in the vtable. 514 515 BINFO_VTABLE 516 This is an expression with POINTER_TYPE that gives the value 517 to which the vptr should be initialized. Use get_vtbl_decl_for_binfo 518 to extract the VAR_DECL for the complete vtable. 519 520 DECL_VINDEX 521 This field is NULL for a non-virtual function. For a virtual 522 function, it is eventually set to an INTEGER_CST indicating the 523 index in the vtable at which this function can be found. When 524 a virtual function is declared, but before it is known what 525 function is overridden, this field is the error_mark_node. 526 527 Temporarily, it may be set to a TREE_LIST whose TREE_VALUE is 528 the virtual function this one overrides, and whose TREE_CHAIN is 529 the old DECL_VINDEX. */ 530 531 /* Language-specific tree checkers. */ 532 533 #define VAR_OR_FUNCTION_DECL_CHECK(NODE) \ 534 TREE_CHECK2(NODE,VAR_DECL,FUNCTION_DECL) 535 536 #define TYPE_FUNCTION_OR_TEMPLATE_DECL_CHECK(NODE) \ 537 TREE_CHECK3(NODE,TYPE_DECL,TEMPLATE_DECL,FUNCTION_DECL) 538 539 #define TYPE_FUNCTION_OR_TEMPLATE_DECL_P(NODE) \ 540 (TREE_CODE (NODE) == TYPE_DECL || TREE_CODE (NODE) == TEMPLATE_DECL \ 541 || TREE_CODE (NODE) == FUNCTION_DECL) 542 543 #define VAR_FUNCTION_OR_PARM_DECL_CHECK(NODE) \ 544 TREE_CHECK3(NODE,VAR_DECL,FUNCTION_DECL,PARM_DECL) 545 546 #define VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK(NODE) \ 547 TREE_CHECK4(NODE,VAR_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL) 548 549 #define VAR_TEMPL_TYPE_FIELD_OR_FUNCTION_DECL_CHECK(NODE) \ 550 TREE_CHECK5(NODE,VAR_DECL,FIELD_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL) 551 552 #define BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK(NODE) \ 553 TREE_CHECK(NODE,BOUND_TEMPLATE_TEMPLATE_PARM) 554 555 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007) 556 #define THUNK_FUNCTION_CHECK(NODE) __extension__ \ 557 ({ __typeof (NODE) const __t = (NODE); \ 558 if (TREE_CODE (__t) != FUNCTION_DECL || !__t->decl_common.lang_specific \ 559 || !__t->decl_common.lang_specific->u.fn.thunk_p) \ 560 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, 0); \ 561 __t; }) 562 #else 563 #define THUNK_FUNCTION_CHECK(NODE) (NODE) 564 #endif 565 566 /* Language-dependent contents of an identifier. */ 567 568 struct GTY(()) lang_identifier { 569 struct c_common_identifier c_common; 570 cxx_binding *bindings; 571 }; 572 573 /* Return a typed pointer version of T if it designates a 574 C++ front-end identifier. */ 575 inline lang_identifier* 576 identifier_p (tree t) 577 { 578 if (TREE_CODE (t) == IDENTIFIER_NODE) 579 return (lang_identifier*) t; 580 return NULL; 581 } 582 583 #define LANG_IDENTIFIER_CAST(NODE) \ 584 ((struct lang_identifier*)IDENTIFIER_NODE_CHECK (NODE)) 585 586 struct GTY(()) template_parm_index { 587 struct tree_common common; 588 int index; 589 int level; 590 int orig_level; 591 tree decl; 592 }; 593 594 struct GTY(()) ptrmem_cst { 595 struct tree_common common; 596 tree member; 597 }; 598 typedef struct ptrmem_cst * ptrmem_cst_t; 599 600 #define CLEANUP_P(NODE) TREE_LANG_FLAG_0 (TRY_BLOCK_CHECK (NODE)) 601 602 #define BIND_EXPR_TRY_BLOCK(NODE) \ 603 TREE_LANG_FLAG_0 (BIND_EXPR_CHECK (NODE)) 604 605 /* Used to mark the block around the member initializers and cleanups. */ 606 #define BIND_EXPR_BODY_BLOCK(NODE) \ 607 TREE_LANG_FLAG_3 (BIND_EXPR_CHECK (NODE)) 608 #define FUNCTION_NEEDS_BODY_BLOCK(NODE) \ 609 (DECL_CONSTRUCTOR_P (NODE) || DECL_DESTRUCTOR_P (NODE) \ 610 || LAMBDA_FUNCTION_P (NODE)) 611 612 #define STATEMENT_LIST_NO_SCOPE(NODE) \ 613 TREE_LANG_FLAG_0 (STATEMENT_LIST_CHECK (NODE)) 614 #define STATEMENT_LIST_TRY_BLOCK(NODE) \ 615 TREE_LANG_FLAG_2 (STATEMENT_LIST_CHECK (NODE)) 616 617 /* Mark the outer curly brace BLOCK. */ 618 #define BLOCK_OUTER_CURLY_BRACE_P(NODE) TREE_LANG_FLAG_0 (BLOCK_CHECK (NODE)) 619 620 /* Nonzero if this statement should be considered a full-expression, 621 i.e., if temporaries created during this statement should have 622 their destructors run at the end of this statement. */ 623 #define STMT_IS_FULL_EXPR_P(NODE) TREE_LANG_FLAG_1 ((NODE)) 624 625 /* Marks the result of a statement expression. */ 626 #define EXPR_STMT_STMT_EXPR_RESULT(NODE) \ 627 TREE_LANG_FLAG_0 (EXPR_STMT_CHECK (NODE)) 628 629 /* Nonzero if this statement-expression does not have an associated scope. */ 630 #define STMT_EXPR_NO_SCOPE(NODE) \ 631 TREE_LANG_FLAG_0 (STMT_EXPR_CHECK (NODE)) 632 633 #define COND_EXPR_IS_VEC_DELETE(NODE) \ 634 TREE_LANG_FLAG_0 (COND_EXPR_CHECK (NODE)) 635 636 /* Nonzero if this NOP_EXPR is a reinterpret_cast. Such conversions 637 are not constexprs. Other NOP_EXPRs are. */ 638 #define REINTERPRET_CAST_P(NODE) \ 639 TREE_LANG_FLAG_0 (NOP_EXPR_CHECK (NODE)) 640 641 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, in the usual 642 sense of `same'. */ 643 #define same_type_p(TYPE1, TYPE2) \ 644 comptypes ((TYPE1), (TYPE2), COMPARE_STRICT) 645 646 /* Returns nonzero iff NODE is a declaration for the global function 647 `main'. */ 648 #define DECL_MAIN_P(NODE) \ 649 (DECL_EXTERN_C_FUNCTION_P (NODE) \ 650 && DECL_NAME (NODE) != NULL_TREE \ 651 && MAIN_NAME_P (DECL_NAME (NODE)) \ 652 && flag_hosted) 653 654 /* Lookup walker marking. */ 655 #define LOOKUP_SEEN_P(NODE) TREE_VISITED(NODE) 656 #define LOOKUP_FOUND_P(NODE) \ 657 TREE_LANG_FLAG_4 (TREE_CHECK3(NODE,RECORD_TYPE,UNION_TYPE,NAMESPACE_DECL)) 658 659 /* These two accessors should only be used by OVL manipulators. 660 Other users should use iterators and convenience functions. */ 661 #define OVL_FUNCTION(NODE) \ 662 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->function) 663 #define OVL_CHAIN(NODE) \ 664 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->common.chain) 665 666 /* If set, this was imported in a using declaration. */ 667 #define OVL_USING_P(NODE) TREE_LANG_FLAG_1 (OVERLOAD_CHECK (NODE)) 668 /* If set, this overload is a hidden decl. */ 669 #define OVL_HIDDEN_P(NODE) TREE_LANG_FLAG_2 (OVERLOAD_CHECK (NODE)) 670 /* If set, this overload contains a nested overload. */ 671 #define OVL_NESTED_P(NODE) TREE_LANG_FLAG_3 (OVERLOAD_CHECK (NODE)) 672 /* If set, this overload was constructed during lookup. */ 673 #define OVL_LOOKUP_P(NODE) TREE_LANG_FLAG_4 (OVERLOAD_CHECK (NODE)) 674 /* If set, this is a persistant lookup. */ 675 #define OVL_USED_P(NODE) TREE_USED (OVERLOAD_CHECK (NODE)) 676 677 /* The first decl of an overload. */ 678 #define OVL_FIRST(NODE) ovl_first (NODE) 679 /* The name of the overload set. */ 680 #define OVL_NAME(NODE) DECL_NAME (OVL_FIRST (NODE)) 681 682 /* Whether this is a set of overloaded functions. TEMPLATE_DECLS are 683 always wrapped in an OVERLOAD, so we don't need to check them 684 here. */ 685 #define OVL_P(NODE) \ 686 (TREE_CODE (NODE) == FUNCTION_DECL || TREE_CODE (NODE) == OVERLOAD) 687 /* Whether this is a single member overload. */ 688 #define OVL_SINGLE_P(NODE) \ 689 (TREE_CODE (NODE) != OVERLOAD || !OVL_CHAIN (NODE)) 690 691 /* OVL_HIDDEN_P nodes come first, then OVL_USING_P nodes, then regular 692 fns. */ 693 694 struct GTY(()) tree_overload { 695 struct tree_common common; 696 tree function; 697 }; 698 699 /* Iterator for a 1 dimensional overload. Permits iterating over the 700 outer level of a 2-d overload when explicitly enabled. */ 701 702 class ovl_iterator 703 { 704 tree ovl; 705 const bool allow_inner; /* Only used when checking. */ 706 707 public: 708 explicit ovl_iterator (tree o, bool allow = false) 709 : ovl (o), allow_inner (allow) 710 { 711 } 712 713 private: 714 /* Do not duplicate. */ 715 ovl_iterator &operator= (const ovl_iterator &); 716 ovl_iterator (const ovl_iterator &); 717 718 public: 719 operator bool () const 720 { 721 return ovl; 722 } 723 ovl_iterator &operator++ () 724 { 725 ovl = TREE_CODE (ovl) != OVERLOAD ? NULL_TREE : OVL_CHAIN (ovl); 726 return *this; 727 } 728 tree operator* () const 729 { 730 tree fn = TREE_CODE (ovl) != OVERLOAD ? ovl : OVL_FUNCTION (ovl); 731 732 /* Check this is not an unexpected 2-dimensional overload. */ 733 gcc_checking_assert (allow_inner || TREE_CODE (fn) != OVERLOAD); 734 735 return fn; 736 } 737 738 public: 739 /* Whether this overload was introduced by a using decl. */ 740 bool using_p () const 741 { 742 return TREE_CODE (ovl) == OVERLOAD && OVL_USING_P (ovl); 743 } 744 bool hidden_p () const 745 { 746 return TREE_CODE (ovl) == OVERLOAD && OVL_HIDDEN_P (ovl); 747 } 748 749 public: 750 tree remove_node (tree head) 751 { 752 return remove_node (head, ovl); 753 } 754 tree reveal_node (tree head) 755 { 756 return reveal_node (head, ovl); 757 } 758 759 protected: 760 /* If we have a nested overload, point at the inner overload and 761 return the next link on the outer one. */ 762 tree maybe_push () 763 { 764 tree r = NULL_TREE; 765 766 if (ovl && TREE_CODE (ovl) == OVERLOAD && OVL_NESTED_P (ovl)) 767 { 768 r = OVL_CHAIN (ovl); 769 ovl = OVL_FUNCTION (ovl); 770 } 771 return r; 772 } 773 /* Restore an outer nested overload. */ 774 void pop (tree outer) 775 { 776 gcc_checking_assert (!ovl); 777 ovl = outer; 778 } 779 780 private: 781 /* We make these static functions to avoid the address of the 782 iterator escaping the local context. */ 783 static tree remove_node (tree head, tree node); 784 static tree reveal_node (tree ovl, tree node); 785 }; 786 787 /* Iterator over a (potentially) 2 dimensional overload, which is 788 produced by name lookup. */ 789 790 class lkp_iterator : public ovl_iterator 791 { 792 typedef ovl_iterator parent; 793 794 tree outer; 795 796 public: 797 explicit lkp_iterator (tree o) 798 : parent (o, true), outer (maybe_push ()) 799 { 800 } 801 802 public: 803 lkp_iterator &operator++ () 804 { 805 bool repush = !outer; 806 807 if (!parent::operator++ () && !repush) 808 { 809 pop (outer); 810 repush = true; 811 } 812 813 if (repush) 814 outer = maybe_push (); 815 816 return *this; 817 } 818 }; 819 820 /* hash traits for declarations. Hashes potential overload sets via 821 DECL_NAME. */ 822 823 struct named_decl_hash : ggc_remove <tree> 824 { 825 typedef tree value_type; /* A DECL or OVERLOAD */ 826 typedef tree compare_type; /* An identifier. */ 827 828 inline static hashval_t hash (const value_type decl); 829 inline static bool equal (const value_type existing, compare_type candidate); 830 831 static inline void mark_empty (value_type &p) {p = NULL_TREE;} 832 static inline bool is_empty (value_type p) {return !p;} 833 834 /* Nothing is deletable. Everything is insertable. */ 835 static bool is_deleted (value_type) { return false; } 836 static void mark_deleted (value_type) { gcc_unreachable (); } 837 }; 838 839 struct GTY(()) tree_template_decl { 840 struct tree_decl_common common; 841 tree arguments; 842 tree result; 843 }; 844 845 /* Returns true iff NODE is a BASELINK. */ 846 #define BASELINK_P(NODE) \ 847 (TREE_CODE (NODE) == BASELINK) 848 /* The BINFO indicating the base in which lookup found the 849 BASELINK_FUNCTIONS. */ 850 #define BASELINK_BINFO(NODE) \ 851 (((struct tree_baselink*) BASELINK_CHECK (NODE))->binfo) 852 /* The functions referred to by the BASELINK; either a FUNCTION_DECL, 853 a TEMPLATE_DECL, an OVERLOAD, or a TEMPLATE_ID_EXPR. */ 854 #define BASELINK_FUNCTIONS(NODE) \ 855 (((struct tree_baselink*) BASELINK_CHECK (NODE))->functions) 856 /* If T is a BASELINK, grab the functions, otherwise just T, which is 857 expected to already be a (list of) functions. */ 858 #define MAYBE_BASELINK_FUNCTIONS(T) \ 859 (BASELINK_P (T) ? BASELINK_FUNCTIONS (T) : T) 860 /* The BINFO in which the search for the functions indicated by this baselink 861 began. This base is used to determine the accessibility of functions 862 selected by overload resolution. */ 863 #define BASELINK_ACCESS_BINFO(NODE) \ 864 (((struct tree_baselink*) BASELINK_CHECK (NODE))->access_binfo) 865 /* For a type-conversion operator, the BASELINK_OPTYPE indicates the type 866 to which the conversion should occur. This value is important if 867 the BASELINK_FUNCTIONS include a template conversion operator -- 868 the BASELINK_OPTYPE can be used to determine what type the user 869 requested. */ 870 #define BASELINK_OPTYPE(NODE) \ 871 (TREE_CHAIN (BASELINK_CHECK (NODE))) 872 /* Nonzero if this baselink was from a qualified lookup. */ 873 #define BASELINK_QUALIFIED_P(NODE) \ 874 TREE_LANG_FLAG_0 (BASELINK_CHECK (NODE)) 875 876 struct GTY(()) tree_baselink { 877 struct tree_common common; 878 tree binfo; 879 tree functions; 880 tree access_binfo; 881 }; 882 883 /* The different kinds of ids that we encounter. */ 884 885 enum cp_id_kind 886 { 887 /* Not an id at all. */ 888 CP_ID_KIND_NONE, 889 /* An unqualified-id that is not a template-id. */ 890 CP_ID_KIND_UNQUALIFIED, 891 /* An unqualified-id that is a dependent name. */ 892 CP_ID_KIND_UNQUALIFIED_DEPENDENT, 893 /* An unqualified template-id. */ 894 CP_ID_KIND_TEMPLATE_ID, 895 /* A qualified-id. */ 896 CP_ID_KIND_QUALIFIED 897 }; 898 899 900 /* The various kinds of C++0x warnings we encounter. */ 901 902 enum cpp0x_warn_str 903 { 904 /* extended initializer lists */ 905 CPP0X_INITIALIZER_LISTS, 906 /* explicit conversion operators */ 907 CPP0X_EXPLICIT_CONVERSION, 908 /* variadic templates */ 909 CPP0X_VARIADIC_TEMPLATES, 910 /* lambda expressions */ 911 CPP0X_LAMBDA_EXPR, 912 /* C++0x auto */ 913 CPP0X_AUTO, 914 /* scoped enums */ 915 CPP0X_SCOPED_ENUMS, 916 /* defaulted and deleted functions */ 917 CPP0X_DEFAULTED_DELETED, 918 /* inline namespaces */ 919 CPP0X_INLINE_NAMESPACES, 920 /* override controls, override/final */ 921 CPP0X_OVERRIDE_CONTROLS, 922 /* non-static data member initializers */ 923 CPP0X_NSDMI, 924 /* user defined literals */ 925 CPP0X_USER_DEFINED_LITERALS, 926 /* delegating constructors */ 927 CPP0X_DELEGATING_CTORS, 928 /* inheriting constructors */ 929 CPP0X_INHERITING_CTORS, 930 /* C++11 attributes */ 931 CPP0X_ATTRIBUTES, 932 /* ref-qualified member functions */ 933 CPP0X_REF_QUALIFIER 934 }; 935 936 /* The various kinds of operation used by composite_pointer_type. */ 937 938 enum composite_pointer_operation 939 { 940 /* comparison */ 941 CPO_COMPARISON, 942 /* conversion */ 943 CPO_CONVERSION, 944 /* conditional expression */ 945 CPO_CONDITIONAL_EXPR 946 }; 947 948 /* Possible cases of expression list used by build_x_compound_expr_from_list. */ 949 enum expr_list_kind { 950 ELK_INIT, /* initializer */ 951 ELK_MEM_INIT, /* member initializer */ 952 ELK_FUNC_CAST /* functional cast */ 953 }; 954 955 /* Possible cases of implicit bad rhs conversions. */ 956 enum impl_conv_rhs { 957 ICR_DEFAULT_ARGUMENT, /* default argument */ 958 ICR_CONVERTING, /* converting */ 959 ICR_INIT, /* initialization */ 960 ICR_ARGPASS, /* argument passing */ 961 ICR_RETURN, /* return */ 962 ICR_ASSIGN /* assignment */ 963 }; 964 965 /* Possible cases of implicit or explicit bad conversions to void. */ 966 enum impl_conv_void { 967 ICV_CAST, /* (explicit) conversion to void */ 968 ICV_SECOND_OF_COND, /* second operand of conditional expression */ 969 ICV_THIRD_OF_COND, /* third operand of conditional expression */ 970 ICV_RIGHT_OF_COMMA, /* right operand of comma operator */ 971 ICV_LEFT_OF_COMMA, /* left operand of comma operator */ 972 ICV_STATEMENT, /* statement */ 973 ICV_THIRD_IN_FOR /* for increment expression */ 974 }; 975 976 /* Possible invalid uses of an abstract class that might not have a 977 specific associated declaration. */ 978 enum GTY(()) abstract_class_use { 979 ACU_UNKNOWN, /* unknown or decl provided */ 980 ACU_CAST, /* cast to abstract class */ 981 ACU_NEW, /* new-expression of abstract class */ 982 ACU_THROW, /* throw-expression of abstract class */ 983 ACU_CATCH, /* catch-parameter of abstract class */ 984 ACU_ARRAY, /* array of abstract class */ 985 ACU_RETURN, /* return type of abstract class */ 986 ACU_PARM /* parameter type of abstract class */ 987 }; 988 989 /* Macros for access to language-specific slots in an identifier. */ 990 991 /* The IDENTIFIER_BINDING is the innermost cxx_binding for the 992 identifier. Its PREVIOUS is the next outermost binding. Each 993 VALUE field is a DECL for the associated declaration. Thus, 994 name lookup consists simply of pulling off the node at the front 995 of the list (modulo oddities for looking up the names of types, 996 and such.) You can use SCOPE field to determine the scope 997 that bound the name. */ 998 #define IDENTIFIER_BINDING(NODE) \ 999 (LANG_IDENTIFIER_CAST (NODE)->bindings) 1000 1001 /* TREE_TYPE only indicates on local and class scope the current 1002 type. For namespace scope, the presence of a type in any namespace 1003 is indicated with global_type_node, and the real type behind must 1004 be found through lookup. */ 1005 #define IDENTIFIER_TYPE_VALUE(NODE) identifier_type_value (NODE) 1006 #define REAL_IDENTIFIER_TYPE_VALUE(NODE) TREE_TYPE (NODE) 1007 #define SET_IDENTIFIER_TYPE_VALUE(NODE,TYPE) (TREE_TYPE (NODE) = (TYPE)) 1008 #define IDENTIFIER_HAS_TYPE_VALUE(NODE) (IDENTIFIER_TYPE_VALUE (NODE) ? 1 : 0) 1009 1010 /* Kinds of identifiers. Values are carefully chosen. */ 1011 enum cp_identifier_kind { 1012 cik_normal = 0, /* Not a special identifier. */ 1013 cik_keyword = 1, /* A keyword. */ 1014 cik_ctor = 2, /* Constructor (in-chg, complete or base). */ 1015 cik_dtor = 3, /* Destructor (in-chg, deleting, complete or 1016 base). */ 1017 cik_simple_op = 4, /* Non-assignment operator name. */ 1018 cik_assign_op = 5, /* An assignment operator name. */ 1019 cik_conv_op = 6, /* Conversion operator name. */ 1020 cik_reserved_for_udlit = 7, /* Not yet in use */ 1021 cik_max 1022 }; 1023 1024 /* Kind bits. */ 1025 #define IDENTIFIER_KIND_BIT_0(NODE) \ 1026 TREE_LANG_FLAG_0 (IDENTIFIER_NODE_CHECK (NODE)) 1027 #define IDENTIFIER_KIND_BIT_1(NODE) \ 1028 TREE_LANG_FLAG_1 (IDENTIFIER_NODE_CHECK (NODE)) 1029 #define IDENTIFIER_KIND_BIT_2(NODE) \ 1030 TREE_LANG_FLAG_2 (IDENTIFIER_NODE_CHECK (NODE)) 1031 1032 /* Used by various search routines. */ 1033 #define IDENTIFIER_MARKED(NODE) \ 1034 TREE_LANG_FLAG_4 (IDENTIFIER_NODE_CHECK (NODE)) 1035 1036 /* Nonzero if this identifier is used as a virtual function name somewhere 1037 (optimizes searches). */ 1038 #define IDENTIFIER_VIRTUAL_P(NODE) \ 1039 TREE_LANG_FLAG_5 (IDENTIFIER_NODE_CHECK (NODE)) 1040 1041 /* True iff NAME is the DECL_ASSEMBLER_NAME for an entity with vague 1042 linkage which the prelinker has assigned to this translation 1043 unit. */ 1044 #define IDENTIFIER_REPO_CHOSEN(NAME) \ 1045 (TREE_LANG_FLAG_6 (IDENTIFIER_NODE_CHECK (NAME))) 1046 1047 /* True if this identifier is a reserved word. C_RID_CODE (node) is 1048 then the RID_* value of the keyword. Value 1. */ 1049 #define IDENTIFIER_KEYWORD_P(NODE) \ 1050 ((!IDENTIFIER_KIND_BIT_2 (NODE)) \ 1051 & (!IDENTIFIER_KIND_BIT_1 (NODE)) \ 1052 & IDENTIFIER_KIND_BIT_0 (NODE)) 1053 1054 /* True if this identifier is the name of a constructor or 1055 destructor. Value 2 or 3. */ 1056 #define IDENTIFIER_CDTOR_P(NODE) \ 1057 ((!IDENTIFIER_KIND_BIT_2 (NODE)) \ 1058 & IDENTIFIER_KIND_BIT_1 (NODE)) 1059 1060 /* True if this identifier is the name of a constructor. Value 2. */ 1061 #define IDENTIFIER_CTOR_P(NODE) \ 1062 (IDENTIFIER_CDTOR_P(NODE) \ 1063 & (!IDENTIFIER_KIND_BIT_0 (NODE))) 1064 1065 /* True if this identifier is the name of a destructor. Value 3. */ 1066 #define IDENTIFIER_DTOR_P(NODE) \ 1067 (IDENTIFIER_CDTOR_P(NODE) \ 1068 & IDENTIFIER_KIND_BIT_0 (NODE)) 1069 1070 /* True if this identifier is for any operator name (including 1071 conversions). Value 4, 5, 6 or 7. */ 1072 #define IDENTIFIER_ANY_OP_P(NODE) \ 1073 (IDENTIFIER_KIND_BIT_2 (NODE)) 1074 1075 /* True if this identifier is for an overloaded operator. Values 4, 5. */ 1076 #define IDENTIFIER_OVL_OP_P(NODE) \ 1077 (IDENTIFIER_ANY_OP_P (NODE) \ 1078 & (!IDENTIFIER_KIND_BIT_1 (NODE))) 1079 1080 /* True if this identifier is for any assignment. Values 5. */ 1081 #define IDENTIFIER_ASSIGN_OP_P(NODE) \ 1082 (IDENTIFIER_OVL_OP_P (NODE) \ 1083 & IDENTIFIER_KIND_BIT_0 (NODE)) 1084 1085 /* True if this identifier is the name of a type-conversion 1086 operator. Value 7. */ 1087 #define IDENTIFIER_CONV_OP_P(NODE) \ 1088 (IDENTIFIER_ANY_OP_P (NODE) \ 1089 & IDENTIFIER_KIND_BIT_1 (NODE) \ 1090 & (!IDENTIFIER_KIND_BIT_0 (NODE))) 1091 1092 /* True if this identifier is a new or delete operator. */ 1093 #define IDENTIFIER_NEWDEL_OP_P(NODE) \ 1094 (IDENTIFIER_OVL_OP_P (NODE) \ 1095 && IDENTIFIER_OVL_OP_FLAGS (NODE) & OVL_OP_FLAG_ALLOC) 1096 1097 /* True if this identifier is a new operator. */ 1098 #define IDENTIFIER_NEW_OP_P(NODE) \ 1099 (IDENTIFIER_OVL_OP_P (NODE) \ 1100 && (IDENTIFIER_OVL_OP_FLAGS (NODE) \ 1101 & (OVL_OP_FLAG_ALLOC | OVL_OP_FLAG_DELETE)) == OVL_OP_FLAG_ALLOC) 1102 1103 /* Access a C++-specific index for identifier NODE. 1104 Used to optimize operator mappings etc. */ 1105 #define IDENTIFIER_CP_INDEX(NODE) \ 1106 (IDENTIFIER_NODE_CHECK(NODE)->base.u.bits.address_space) 1107 1108 /* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */ 1109 #define C_TYPE_FIELDS_READONLY(TYPE) \ 1110 (LANG_TYPE_CLASS_CHECK (TYPE)->fields_readonly) 1111 1112 /* The tokens stored in the default argument. */ 1113 1114 #define DEFARG_TOKENS(NODE) \ 1115 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->tokens) 1116 #define DEFARG_INSTANTIATIONS(NODE) \ 1117 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->instantiations) 1118 1119 struct GTY (()) tree_default_arg { 1120 struct tree_common common; 1121 struct cp_token_cache *tokens; 1122 vec<tree, va_gc> *instantiations; 1123 }; 1124 1125 1126 #define DEFERRED_NOEXCEPT_PATTERN(NODE) \ 1127 (((struct tree_deferred_noexcept *)DEFERRED_NOEXCEPT_CHECK (NODE))->pattern) 1128 #define DEFERRED_NOEXCEPT_ARGS(NODE) \ 1129 (((struct tree_deferred_noexcept *)DEFERRED_NOEXCEPT_CHECK (NODE))->args) 1130 #define DEFERRED_NOEXCEPT_SPEC_P(NODE) \ 1131 ((NODE) && (TREE_PURPOSE (NODE)) \ 1132 && (TREE_CODE (TREE_PURPOSE (NODE)) == DEFERRED_NOEXCEPT)) 1133 #define UNEVALUATED_NOEXCEPT_SPEC_P(NODE) \ 1134 (DEFERRED_NOEXCEPT_SPEC_P (NODE) \ 1135 && DEFERRED_NOEXCEPT_PATTERN (TREE_PURPOSE (NODE)) == NULL_TREE) 1136 1137 struct GTY (()) tree_deferred_noexcept { 1138 struct tree_base base; 1139 tree pattern; 1140 tree args; 1141 }; 1142 1143 1144 /* The condition associated with the static assertion. This must be 1145 an integral constant expression. */ 1146 #define STATIC_ASSERT_CONDITION(NODE) \ 1147 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->condition) 1148 1149 /* The message associated with the static assertion. This must be a 1150 string constant, which will be emitted as an error message when the 1151 static assert condition is false. */ 1152 #define STATIC_ASSERT_MESSAGE(NODE) \ 1153 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->message) 1154 1155 /* Source location information for a static assertion. */ 1156 #define STATIC_ASSERT_SOURCE_LOCATION(NODE) \ 1157 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->location) 1158 1159 struct GTY (()) tree_static_assert { 1160 struct tree_common common; 1161 tree condition; 1162 tree message; 1163 location_t location; 1164 }; 1165 1166 struct GTY (()) tree_argument_pack_select { 1167 struct tree_common common; 1168 tree argument_pack; 1169 int index; 1170 }; 1171 1172 /* The different kinds of traits that we encounter. */ 1173 1174 enum cp_trait_kind 1175 { 1176 CPTK_BASES, 1177 CPTK_DIRECT_BASES, 1178 CPTK_HAS_NOTHROW_ASSIGN, 1179 CPTK_HAS_NOTHROW_CONSTRUCTOR, 1180 CPTK_HAS_NOTHROW_COPY, 1181 CPTK_HAS_TRIVIAL_ASSIGN, 1182 CPTK_HAS_TRIVIAL_CONSTRUCTOR, 1183 CPTK_HAS_TRIVIAL_COPY, 1184 CPTK_HAS_TRIVIAL_DESTRUCTOR, 1185 CPTK_HAS_UNIQUE_OBJ_REPRESENTATIONS, 1186 CPTK_HAS_VIRTUAL_DESTRUCTOR, 1187 CPTK_IS_ABSTRACT, 1188 CPTK_IS_AGGREGATE, 1189 CPTK_IS_BASE_OF, 1190 CPTK_IS_CLASS, 1191 CPTK_IS_EMPTY, 1192 CPTK_IS_ENUM, 1193 CPTK_IS_FINAL, 1194 CPTK_IS_LITERAL_TYPE, 1195 CPTK_IS_POD, 1196 CPTK_IS_POLYMORPHIC, 1197 CPTK_IS_SAME_AS, 1198 CPTK_IS_STD_LAYOUT, 1199 CPTK_IS_TRIVIAL, 1200 CPTK_IS_TRIVIALLY_ASSIGNABLE, 1201 CPTK_IS_TRIVIALLY_CONSTRUCTIBLE, 1202 CPTK_IS_TRIVIALLY_COPYABLE, 1203 CPTK_IS_UNION, 1204 CPTK_UNDERLYING_TYPE, 1205 CPTK_IS_ASSIGNABLE, 1206 CPTK_IS_CONSTRUCTIBLE 1207 }; 1208 1209 /* The types that we are processing. */ 1210 #define TRAIT_EXPR_TYPE1(NODE) \ 1211 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type1) 1212 1213 #define TRAIT_EXPR_TYPE2(NODE) \ 1214 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type2) 1215 1216 /* The specific trait that we are processing. */ 1217 #define TRAIT_EXPR_KIND(NODE) \ 1218 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->kind) 1219 1220 struct GTY (()) tree_trait_expr { 1221 struct tree_common common; 1222 tree type1; 1223 tree type2; 1224 enum cp_trait_kind kind; 1225 }; 1226 1227 /* Based off of TYPE_UNNAMED_P. */ 1228 #define LAMBDA_TYPE_P(NODE) \ 1229 (CLASS_TYPE_P (NODE) && CLASSTYPE_LAMBDA_EXPR (NODE)) 1230 1231 /* Test if FUNCTION_DECL is a lambda function. */ 1232 #define LAMBDA_FUNCTION_P(FNDECL) \ 1233 (DECL_DECLARES_FUNCTION_P (FNDECL) \ 1234 && DECL_OVERLOADED_OPERATOR_P (FNDECL) \ 1235 && DECL_OVERLOADED_OPERATOR_IS (FNDECL, CALL_EXPR) \ 1236 && LAMBDA_TYPE_P (CP_DECL_CONTEXT (FNDECL))) 1237 1238 enum cp_lambda_default_capture_mode_type { 1239 CPLD_NONE, 1240 CPLD_COPY, 1241 CPLD_REFERENCE 1242 }; 1243 1244 /* The method of default capture, if any. */ 1245 #define LAMBDA_EXPR_DEFAULT_CAPTURE_MODE(NODE) \ 1246 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->default_capture_mode) 1247 1248 /* The capture-list, including `this'. Each capture is stored as a FIELD_DECL 1249 * so that the name, type, and field are all together, whether or not it has 1250 * been added to the lambda's class type. 1251 TREE_LIST: 1252 TREE_PURPOSE: The FIELD_DECL for this capture. 1253 TREE_VALUE: The initializer. This is part of a GNU extension. */ 1254 #define LAMBDA_EXPR_CAPTURE_LIST(NODE) \ 1255 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->capture_list) 1256 1257 /* During parsing of the lambda-introducer, the node in the capture-list 1258 that holds the 'this' capture. During parsing of the body, the 1259 capture proxy for that node. */ 1260 #define LAMBDA_EXPR_THIS_CAPTURE(NODE) \ 1261 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->this_capture) 1262 1263 /* Predicate tracking whether `this' is in the effective capture set. */ 1264 #define LAMBDA_EXPR_CAPTURES_THIS_P(NODE) \ 1265 LAMBDA_EXPR_THIS_CAPTURE(NODE) 1266 1267 /* Predicate tracking whether the lambda was declared 'mutable'. */ 1268 #define LAMBDA_EXPR_MUTABLE_P(NODE) \ 1269 TREE_LANG_FLAG_1 (LAMBDA_EXPR_CHECK (NODE)) 1270 1271 /* True iff uses of a const variable capture were optimized away. */ 1272 #define LAMBDA_EXPR_CAPTURE_OPTIMIZED(NODE) \ 1273 TREE_LANG_FLAG_2 (LAMBDA_EXPR_CHECK (NODE)) 1274 1275 /* True if this TREE_LIST in LAMBDA_EXPR_CAPTURE_LIST is for an explicit 1276 capture. */ 1277 #define LAMBDA_CAPTURE_EXPLICIT_P(NODE) \ 1278 TREE_LANG_FLAG_0 (TREE_LIST_CHECK (NODE)) 1279 1280 /* The source location of the lambda. */ 1281 #define LAMBDA_EXPR_LOCATION(NODE) \ 1282 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->locus) 1283 1284 /* The mangling scope for the lambda: FUNCTION_DECL, PARM_DECL, VAR_DECL, 1285 FIELD_DECL or NULL_TREE. If this is NULL_TREE, we have no linkage. */ 1286 #define LAMBDA_EXPR_EXTRA_SCOPE(NODE) \ 1287 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->extra_scope) 1288 1289 /* If EXTRA_SCOPE, this is the number of the lambda within that scope. */ 1290 #define LAMBDA_EXPR_DISCRIMINATOR(NODE) \ 1291 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->discriminator) 1292 1293 /* During parsing of the lambda, a vector of capture proxies which need 1294 to be pushed once we're done processing a nested lambda. */ 1295 #define LAMBDA_EXPR_PENDING_PROXIES(NODE) \ 1296 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->pending_proxies) 1297 1298 /* The closure type of the lambda, which is also the type of the 1299 LAMBDA_EXPR. */ 1300 #define LAMBDA_EXPR_CLOSURE(NODE) \ 1301 (TREE_TYPE (LAMBDA_EXPR_CHECK (NODE))) 1302 1303 struct GTY (()) tree_lambda_expr 1304 { 1305 struct tree_typed typed; 1306 tree capture_list; 1307 tree this_capture; 1308 tree extra_scope; 1309 vec<tree, va_gc> *pending_proxies; 1310 location_t locus; 1311 enum cp_lambda_default_capture_mode_type default_capture_mode; 1312 int discriminator; 1313 }; 1314 1315 /* A (typedef,context,usage location) triplet. 1316 It represents a typedef used through a 1317 context at a given source location. 1318 e.g. 1319 struct foo { 1320 typedef int myint; 1321 }; 1322 1323 struct bar { 1324 foo::myint v; // #1<-- this location. 1325 }; 1326 1327 In bar, the triplet will be (myint, foo, #1). 1328 */ 1329 struct GTY(()) qualified_typedef_usage_s { 1330 tree typedef_decl; 1331 tree context; 1332 location_t locus; 1333 }; 1334 typedef struct qualified_typedef_usage_s qualified_typedef_usage_t; 1335 1336 /* Non-zero if this template specialization has access violations that 1337 should be rechecked when the function is instantiated outside argument 1338 deduction. */ 1339 #define TINFO_HAS_ACCESS_ERRORS(NODE) \ 1340 (TREE_LANG_FLAG_0 (TEMPLATE_INFO_CHECK (NODE))) 1341 #define FNDECL_HAS_ACCESS_ERRORS(NODE) \ 1342 (TINFO_HAS_ACCESS_ERRORS (DECL_TEMPLATE_INFO (NODE))) 1343 1344 /* Non-zero if this variable template specialization was specified using a 1345 template-id, so it's a partial or full specialization and not a definition 1346 of the member template of a particular class specialization. */ 1347 #define TINFO_USED_TEMPLATE_ID(NODE) \ 1348 (TREE_LANG_FLAG_1 (TEMPLATE_INFO_CHECK (NODE))) 1349 1350 struct GTY(()) tree_template_info { 1351 struct tree_common common; 1352 vec<qualified_typedef_usage_t, va_gc> *typedefs_needing_access_checking; 1353 }; 1354 1355 // Constraint information for a C++ declaration. Constraint information is 1356 // comprised of: 1357 // 1358 // - a constraint expression introduced by the template header 1359 // - a constraint expression introduced by a function declarator 1360 // - the associated constraints, which are the conjunction of those, 1361 // and used for declaration matching 1362 // 1363 // The template and declarator requirements are kept to support pretty 1364 // printing constrained declarations. 1365 struct GTY(()) tree_constraint_info { 1366 struct tree_base base; 1367 tree template_reqs; 1368 tree declarator_reqs; 1369 tree associated_constr; 1370 }; 1371 1372 // Require that pointer P is non-null before returning. 1373 template<typename T> 1374 inline T* 1375 check_nonnull (T* p) 1376 { 1377 gcc_assert (p); 1378 return p; 1379 } 1380 1381 // Returns true iff T is non-null and represents constraint info. 1382 inline tree_constraint_info * 1383 check_constraint_info (tree t) 1384 { 1385 if (t && TREE_CODE (t) == CONSTRAINT_INFO) 1386 return (tree_constraint_info *)t; 1387 return NULL; 1388 } 1389 1390 // Access the expression describing the template constraints. This may be 1391 // null if no constraints were introduced in the template parameter list, 1392 // a requirements clause after the template parameter list, or constraints 1393 // through a constrained-type-specifier. 1394 #define CI_TEMPLATE_REQS(NODE) \ 1395 check_constraint_info (check_nonnull(NODE))->template_reqs 1396 1397 // Access the expression describing the trailing constraints. This is non-null 1398 // for any implicit instantiation of a constrained declaration. For a 1399 // templated declaration it is non-null only when a trailing requires-clause 1400 // was specified. 1401 #define CI_DECLARATOR_REQS(NODE) \ 1402 check_constraint_info (check_nonnull(NODE))->declarator_reqs 1403 1404 // The computed associated constraint expression for a declaration. 1405 #define CI_ASSOCIATED_CONSTRAINTS(NODE) \ 1406 check_constraint_info (check_nonnull(NODE))->associated_constr 1407 1408 // Access the logical constraints on the template parameters introduced 1409 // at a given template parameter list level indicated by NODE. 1410 #define TEMPLATE_PARMS_CONSTRAINTS(NODE) \ 1411 TREE_TYPE (TREE_LIST_CHECK (NODE)) 1412 1413 // Access the logical constraints on the template parameter declaration 1414 // indicated by NODE. 1415 #define TEMPLATE_PARM_CONSTRAINTS(NODE) \ 1416 TREE_TYPE (TREE_LIST_CHECK (NODE)) 1417 1418 /* Non-zero if the noexcept is present in a compound requirement. */ 1419 #define COMPOUND_REQ_NOEXCEPT_P(NODE) \ 1420 TREE_LANG_FLAG_0 (TREE_CHECK (NODE, COMPOUND_REQ)) 1421 1422 /* The constraints on an 'auto' placeholder type, used in an argument deduction 1423 constraint. */ 1424 #define PLACEHOLDER_TYPE_CONSTRAINTS(NODE) \ 1425 DECL_SIZE_UNIT (TYPE_NAME (NODE)) 1426 1427 /* The expression evaluated by the predicate constraint. */ 1428 #define PRED_CONSTR_EXPR(NODE) \ 1429 TREE_OPERAND (TREE_CHECK (NODE, PRED_CONSTR), 0) 1430 1431 /* The concept of a concept check. */ 1432 #define CHECK_CONSTR_CONCEPT(NODE) \ 1433 TREE_OPERAND (TREE_CHECK (NODE, CHECK_CONSTR), 0) 1434 1435 /* The template arguments of a concept check. */ 1436 #define CHECK_CONSTR_ARGS(NODE) \ 1437 TREE_OPERAND (TREE_CHECK (NODE, CHECK_CONSTR), 1) 1438 1439 /* The expression validated by the predicate constraint. */ 1440 #define EXPR_CONSTR_EXPR(NODE) \ 1441 TREE_OPERAND (TREE_CHECK (NODE, EXPR_CONSTR), 0) 1442 1443 /* The type validated by the predicate constraint. */ 1444 #define TYPE_CONSTR_TYPE(NODE) \ 1445 TREE_OPERAND (TREE_CHECK (NODE, TYPE_CONSTR), 0) 1446 1447 /* In an implicit conversion constraint, the source expression. */ 1448 #define ICONV_CONSTR_EXPR(NODE) \ 1449 TREE_OPERAND (TREE_CHECK (NODE, ICONV_CONSTR), 0) 1450 1451 /* In an implicit conversion constraint, the target type. */ 1452 #define ICONV_CONSTR_TYPE(NODE) \ 1453 TREE_OPERAND (TREE_CHECK (NODE, ICONV_CONSTR), 1) 1454 1455 /* In an argument deduction constraint, the source expression. */ 1456 #define DEDUCT_CONSTR_EXPR(NODE) \ 1457 TREE_OPERAND (TREE_CHECK (NODE, DEDUCT_CONSTR), 0) 1458 1459 /* In an argument deduction constraint, the target type pattern. */ 1460 #define DEDUCT_CONSTR_PATTERN(NODE) \ 1461 TREE_OPERAND (TREE_CHECK (NODE, DEDUCT_CONSTR), 1) 1462 1463 /* In an argument deduction constraint, the list of placeholder nodes. */ 1464 #define DEDUCT_CONSTR_PLACEHOLDER(NODE) \ 1465 TREE_OPERAND (TREE_CHECK (NODE, DEDUCT_CONSTR), 2) 1466 1467 /* The expression of an exception constraint. */ 1468 #define EXCEPT_CONSTR_EXPR(NODE) \ 1469 TREE_OPERAND (TREE_CHECK (NODE, EXCEPT_CONSTR), 0) 1470 1471 /* In a parameterized constraint, the local parameters. */ 1472 #define PARM_CONSTR_PARMS(NODE) \ 1473 TREE_OPERAND (TREE_CHECK (NODE, PARM_CONSTR), 0) 1474 1475 /* In a parameterized constraint, the operand. */ 1476 #define PARM_CONSTR_OPERAND(NODE) \ 1477 TREE_OPERAND (TREE_CHECK (NODE, PARM_CONSTR), 1) 1478 1479 /* Whether a PARM_DECL represents a local parameter in a 1480 requires-expression. */ 1481 #define CONSTRAINT_VAR_P(NODE) \ 1482 DECL_LANG_FLAG_2 (TREE_CHECK (NODE, PARM_DECL)) 1483 1484 /* The concept constraining this constrained template-parameter. */ 1485 #define CONSTRAINED_PARM_CONCEPT(NODE) \ 1486 DECL_SIZE_UNIT (TYPE_DECL_CHECK (NODE)) 1487 /* Any extra template arguments specified for a constrained 1488 template-parameter. */ 1489 #define CONSTRAINED_PARM_EXTRA_ARGS(NODE) \ 1490 DECL_SIZE (TYPE_DECL_CHECK (NODE)) 1491 /* The first template parameter of CONSTRAINED_PARM_CONCEPT to be used as a 1492 prototype for the constrained parameter in finish_shorthand_constraint, 1493 attached for convenience. */ 1494 #define CONSTRAINED_PARM_PROTOTYPE(NODE) \ 1495 DECL_INITIAL (TYPE_DECL_CHECK (NODE)) 1496 1497 enum cp_tree_node_structure_enum { 1498 TS_CP_GENERIC, 1499 TS_CP_IDENTIFIER, 1500 TS_CP_TPI, 1501 TS_CP_PTRMEM, 1502 TS_CP_OVERLOAD, 1503 TS_CP_BASELINK, 1504 TS_CP_TEMPLATE_DECL, 1505 TS_CP_DEFAULT_ARG, 1506 TS_CP_DEFERRED_NOEXCEPT, 1507 TS_CP_STATIC_ASSERT, 1508 TS_CP_ARGUMENT_PACK_SELECT, 1509 TS_CP_TRAIT_EXPR, 1510 TS_CP_LAMBDA_EXPR, 1511 TS_CP_TEMPLATE_INFO, 1512 TS_CP_CONSTRAINT_INFO, 1513 TS_CP_USERDEF_LITERAL 1514 }; 1515 1516 /* The resulting tree type. */ 1517 union GTY((desc ("cp_tree_node_structure (&%h)"), 1518 chain_next ("(union lang_tree_node *) c_tree_chain_next (&%h.generic)"))) lang_tree_node { 1519 union tree_node GTY ((tag ("TS_CP_GENERIC"), 1520 desc ("tree_node_structure (&%h)"))) generic; 1521 struct template_parm_index GTY ((tag ("TS_CP_TPI"))) tpi; 1522 struct ptrmem_cst GTY ((tag ("TS_CP_PTRMEM"))) ptrmem; 1523 struct tree_overload GTY ((tag ("TS_CP_OVERLOAD"))) overload; 1524 struct tree_baselink GTY ((tag ("TS_CP_BASELINK"))) baselink; 1525 struct tree_template_decl GTY ((tag ("TS_CP_TEMPLATE_DECL"))) template_decl; 1526 struct tree_default_arg GTY ((tag ("TS_CP_DEFAULT_ARG"))) default_arg; 1527 struct tree_deferred_noexcept GTY ((tag ("TS_CP_DEFERRED_NOEXCEPT"))) deferred_noexcept; 1528 struct lang_identifier GTY ((tag ("TS_CP_IDENTIFIER"))) identifier; 1529 struct tree_static_assert GTY ((tag ("TS_CP_STATIC_ASSERT"))) 1530 static_assertion; 1531 struct tree_argument_pack_select GTY ((tag ("TS_CP_ARGUMENT_PACK_SELECT"))) 1532 argument_pack_select; 1533 struct tree_trait_expr GTY ((tag ("TS_CP_TRAIT_EXPR"))) 1534 trait_expression; 1535 struct tree_lambda_expr GTY ((tag ("TS_CP_LAMBDA_EXPR"))) 1536 lambda_expression; 1537 struct tree_template_info GTY ((tag ("TS_CP_TEMPLATE_INFO"))) 1538 template_info; 1539 struct tree_constraint_info GTY ((tag ("TS_CP_CONSTRAINT_INFO"))) 1540 constraint_info; 1541 struct tree_userdef_literal GTY ((tag ("TS_CP_USERDEF_LITERAL"))) 1542 userdef_literal; 1543 }; 1544 1545 1546 /* Global state. */ 1547 1548 struct GTY(()) saved_scope { 1549 vec<cxx_saved_binding, va_gc> *old_bindings; 1550 tree old_namespace; 1551 vec<tree, va_gc> *decl_ns_list; 1552 tree class_name; 1553 tree class_type; 1554 tree access_specifier; 1555 tree function_decl; 1556 vec<tree, va_gc> *lang_base; 1557 tree lang_name; 1558 tree template_parms; 1559 cp_binding_level *x_previous_class_level; 1560 tree x_saved_tree; 1561 1562 /* Only used for uses of this in trailing return type. */ 1563 tree x_current_class_ptr; 1564 tree x_current_class_ref; 1565 1566 int x_processing_template_decl; 1567 int x_processing_specialization; 1568 BOOL_BITFIELD x_processing_explicit_instantiation : 1; 1569 BOOL_BITFIELD need_pop_function_context : 1; 1570 1571 /* Nonzero if we are parsing the discarded statement of a constexpr 1572 if-statement. */ 1573 BOOL_BITFIELD discarded_stmt : 1; 1574 1575 int unevaluated_operand; 1576 int inhibit_evaluation_warnings; 1577 int noexcept_operand; 1578 /* If non-zero, implicit "omp declare target" attribute is added into the 1579 attribute lists. */ 1580 int omp_declare_target_attribute; 1581 1582 struct stmt_tree_s x_stmt_tree; 1583 1584 cp_binding_level *class_bindings; 1585 cp_binding_level *bindings; 1586 1587 hash_map<tree, tree> *GTY((skip)) x_local_specializations; 1588 1589 struct saved_scope *prev; 1590 }; 1591 1592 extern GTY(()) struct saved_scope *scope_chain; 1593 1594 /* The current open namespace. */ 1595 1596 #define current_namespace scope_chain->old_namespace 1597 1598 /* The stack for namespaces of current declarations. */ 1599 1600 #define decl_namespace_list scope_chain->decl_ns_list 1601 1602 /* IDENTIFIER_NODE: name of current class */ 1603 1604 #define current_class_name scope_chain->class_name 1605 1606 /* _TYPE: the type of the current class */ 1607 1608 #define current_class_type scope_chain->class_type 1609 1610 /* When parsing a class definition, the access specifier most recently 1611 given by the user, or, if no access specifier was given, the 1612 default value appropriate for the kind of class (i.e., struct, 1613 class, or union). */ 1614 1615 #define current_access_specifier scope_chain->access_specifier 1616 1617 /* Pointer to the top of the language name stack. */ 1618 1619 #define current_lang_base scope_chain->lang_base 1620 #define current_lang_name scope_chain->lang_name 1621 1622 /* When parsing a template declaration, a TREE_LIST represents the 1623 active template parameters. Each node in the list represents one 1624 level of template parameters. The innermost level is first in the 1625 list. The depth of each level is stored as an INTEGER_CST in the 1626 TREE_PURPOSE of each node. The parameters for that level are 1627 stored in the TREE_VALUE. */ 1628 1629 #define current_template_parms scope_chain->template_parms 1630 1631 #define processing_template_decl scope_chain->x_processing_template_decl 1632 #define processing_specialization scope_chain->x_processing_specialization 1633 #define processing_explicit_instantiation scope_chain->x_processing_explicit_instantiation 1634 1635 #define in_discarded_stmt scope_chain->discarded_stmt 1636 1637 /* RAII sentinel to handle clearing processing_template_decl and restoring 1638 it when done. */ 1639 1640 struct processing_template_decl_sentinel 1641 { 1642 int saved; 1643 processing_template_decl_sentinel (bool reset = true) 1644 : saved (processing_template_decl) 1645 { 1646 if (reset) 1647 processing_template_decl = 0; 1648 } 1649 ~processing_template_decl_sentinel() 1650 { 1651 processing_template_decl = saved; 1652 } 1653 }; 1654 1655 /* RAII sentinel to disable certain warnings during template substitution 1656 and elsewhere. */ 1657 1658 struct warning_sentinel 1659 { 1660 int &flag; 1661 int val; 1662 warning_sentinel(int& flag, bool suppress=true) 1663 : flag(flag), val(flag) { if (suppress) flag = 0; } 1664 ~warning_sentinel() { flag = val; } 1665 }; 1666 1667 /* RAII sentinel that saves the value of a variable, optionally 1668 overrides it right away, and restores its value when the sentinel 1669 id destructed. */ 1670 1671 template <typename T> 1672 class temp_override 1673 { 1674 T& overridden_variable; 1675 T saved_value; 1676 public: 1677 temp_override(T& var) : overridden_variable (var), saved_value (var) {} 1678 temp_override(T& var, T overrider) 1679 : overridden_variable (var), saved_value (var) 1680 { 1681 overridden_variable = overrider; 1682 } 1683 ~temp_override() { overridden_variable = saved_value; } 1684 }; 1685 1686 /* The cached class binding level, from the most recently exited 1687 class, or NULL if none. */ 1688 1689 #define previous_class_level scope_chain->x_previous_class_level 1690 1691 /* A map from local variable declarations in the body of the template 1692 presently being instantiated to the corresponding instantiated 1693 local variables. */ 1694 1695 #define local_specializations scope_chain->x_local_specializations 1696 1697 /* Nonzero if we are parsing the operand of a noexcept operator. */ 1698 1699 #define cp_noexcept_operand scope_chain->noexcept_operand 1700 1701 /* A list of private types mentioned, for deferred access checking. */ 1702 1703 struct GTY((for_user)) cxx_int_tree_map { 1704 unsigned int uid; 1705 tree to; 1706 }; 1707 1708 struct cxx_int_tree_map_hasher : ggc_ptr_hash<cxx_int_tree_map> 1709 { 1710 static hashval_t hash (cxx_int_tree_map *); 1711 static bool equal (cxx_int_tree_map *, cxx_int_tree_map *); 1712 }; 1713 1714 struct named_label_entry; /* Defined in decl.c. */ 1715 1716 struct named_label_hash : ggc_remove <named_label_entry *> 1717 { 1718 typedef named_label_entry *value_type; 1719 typedef tree compare_type; /* An identifier. */ 1720 1721 inline static hashval_t hash (value_type); 1722 inline static bool equal (const value_type, compare_type); 1723 1724 inline static void mark_empty (value_type &p) {p = NULL;} 1725 inline static bool is_empty (value_type p) {return !p;} 1726 1727 /* Nothing is deletable. Everything is insertable. */ 1728 inline static bool is_deleted (value_type) { return false; } 1729 inline static void mark_deleted (value_type) { gcc_unreachable (); } 1730 }; 1731 1732 /* Global state pertinent to the current function. */ 1733 1734 struct GTY(()) language_function { 1735 struct c_language_function base; 1736 1737 tree x_cdtor_label; 1738 tree x_current_class_ptr; 1739 tree x_current_class_ref; 1740 tree x_eh_spec_block; 1741 tree x_in_charge_parm; 1742 tree x_vtt_parm; 1743 tree x_return_value; 1744 tree x_auto_return_pattern; 1745 1746 BOOL_BITFIELD returns_value : 1; 1747 BOOL_BITFIELD returns_null : 1; 1748 BOOL_BITFIELD returns_abnormally : 1; 1749 BOOL_BITFIELD infinite_loop: 1; 1750 BOOL_BITFIELD x_in_function_try_handler : 1; 1751 BOOL_BITFIELD x_in_base_initializer : 1; 1752 1753 /* True if this function can throw an exception. */ 1754 BOOL_BITFIELD can_throw : 1; 1755 1756 BOOL_BITFIELD invalid_constexpr : 1; 1757 1758 hash_table<named_label_hash> *x_named_labels; 1759 1760 cp_binding_level *bindings; 1761 vec<tree, va_gc> *x_local_names; 1762 /* Tracking possibly infinite loops. This is a vec<tree> only because 1763 vec<bool> doesn't work with gtype. */ 1764 vec<tree, va_gc> *infinite_loops; 1765 hash_table<cxx_int_tree_map_hasher> *extern_decl_map; 1766 }; 1767 1768 /* The current C++-specific per-function global variables. */ 1769 1770 #define cp_function_chain (cfun->language) 1771 1772 /* In a constructor destructor, the point at which all derived class 1773 destroying/construction has been done. I.e., just before a 1774 constructor returns, or before any base class destroying will be done 1775 in a destructor. */ 1776 1777 #define cdtor_label cp_function_chain->x_cdtor_label 1778 1779 /* When we're processing a member function, current_class_ptr is the 1780 PARM_DECL for the `this' pointer. The current_class_ref is an 1781 expression for `*this'. */ 1782 1783 #define current_class_ptr \ 1784 (*(cfun && cp_function_chain \ 1785 ? &cp_function_chain->x_current_class_ptr \ 1786 : &scope_chain->x_current_class_ptr)) 1787 #define current_class_ref \ 1788 (*(cfun && cp_function_chain \ 1789 ? &cp_function_chain->x_current_class_ref \ 1790 : &scope_chain->x_current_class_ref)) 1791 1792 /* The EH_SPEC_BLOCK for the exception-specifiers for the current 1793 function, if any. */ 1794 1795 #define current_eh_spec_block cp_function_chain->x_eh_spec_block 1796 1797 /* The `__in_chrg' parameter for the current function. Only used for 1798 constructors and destructors. */ 1799 1800 #define current_in_charge_parm cp_function_chain->x_in_charge_parm 1801 1802 /* The `__vtt_parm' parameter for the current function. Only used for 1803 constructors and destructors. */ 1804 1805 #define current_vtt_parm cp_function_chain->x_vtt_parm 1806 1807 /* Set to 0 at beginning of a function definition, set to 1 if 1808 a return statement that specifies a return value is seen. */ 1809 1810 #define current_function_returns_value cp_function_chain->returns_value 1811 1812 /* Set to 0 at beginning of a function definition, set to 1 if 1813 a return statement with no argument is seen. */ 1814 1815 #define current_function_returns_null cp_function_chain->returns_null 1816 1817 /* Set to 0 at beginning of a function definition, set to 1 if 1818 a call to a noreturn function is seen. */ 1819 1820 #define current_function_returns_abnormally \ 1821 cp_function_chain->returns_abnormally 1822 1823 /* Set to 0 at beginning of a function definition, set to 1 if we see an 1824 obvious infinite loop. This can have false positives and false 1825 negatives, so it should only be used as a heuristic. */ 1826 1827 #define current_function_infinite_loop cp_function_chain->infinite_loop 1828 1829 /* Nonzero if we are processing a base initializer. Zero elsewhere. */ 1830 #define in_base_initializer cp_function_chain->x_in_base_initializer 1831 1832 #define in_function_try_handler cp_function_chain->x_in_function_try_handler 1833 1834 /* Expression always returned from function, or error_mark_node 1835 otherwise, for use by the automatic named return value optimization. */ 1836 1837 #define current_function_return_value \ 1838 (cp_function_chain->x_return_value) 1839 1840 /* A type involving 'auto' to be used for return type deduction. */ 1841 1842 #define current_function_auto_return_pattern \ 1843 (cp_function_chain->x_auto_return_pattern) 1844 1845 /* In parser.c. */ 1846 extern tree cp_literal_operator_id (const char *); 1847 1848 /* TRUE if a tree code represents a statement. */ 1849 extern bool statement_code_p[MAX_TREE_CODES]; 1850 1851 #define STATEMENT_CODE_P(CODE) statement_code_p[(int) (CODE)] 1852 1853 enum languages { lang_c, lang_cplusplus }; 1854 1855 /* Macros to make error reporting functions' lives easier. */ 1856 #define TYPE_LINKAGE_IDENTIFIER(NODE) \ 1857 (TYPE_IDENTIFIER (TYPE_MAIN_VARIANT (NODE))) 1858 #define TYPE_NAME_STRING(NODE) (IDENTIFIER_POINTER (TYPE_IDENTIFIER (NODE))) 1859 #define TYPE_NAME_LENGTH(NODE) (IDENTIFIER_LENGTH (TYPE_IDENTIFIER (NODE))) 1860 1861 /* Nonzero if NODE has no name for linkage purposes. */ 1862 #define TYPE_UNNAMED_P(NODE) \ 1863 (OVERLOAD_TYPE_P (NODE) && anon_aggrname_p (TYPE_LINKAGE_IDENTIFIER (NODE))) 1864 1865 /* The _DECL for this _TYPE. */ 1866 #define TYPE_MAIN_DECL(NODE) (TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE))) 1867 1868 /* Nonzero if T is a type that could resolve to any kind of concrete type 1869 at instantiation time. */ 1870 #define WILDCARD_TYPE_P(T) \ 1871 (TREE_CODE (T) == TEMPLATE_TYPE_PARM \ 1872 || TREE_CODE (T) == TYPENAME_TYPE \ 1873 || TREE_CODE (T) == TYPEOF_TYPE \ 1874 || TREE_CODE (T) == BOUND_TEMPLATE_TEMPLATE_PARM \ 1875 || TREE_CODE (T) == DECLTYPE_TYPE) 1876 1877 /* Nonzero if T is a class (or struct or union) type. Also nonzero 1878 for template type parameters, typename types, and instantiated 1879 template template parameters. Keep these checks in ascending code 1880 order. */ 1881 #define MAYBE_CLASS_TYPE_P(T) (WILDCARD_TYPE_P (T) || CLASS_TYPE_P (T)) 1882 1883 /* Set CLASS_TYPE_P for T to VAL. T must be a class, struct, or 1884 union type. */ 1885 #define SET_CLASS_TYPE_P(T, VAL) \ 1886 (TYPE_LANG_FLAG_5 (RECORD_OR_UNION_CHECK (T)) = (VAL)) 1887 1888 /* Nonzero if T is a class type. Zero for template type parameters, 1889 typename types, and so forth. */ 1890 #define CLASS_TYPE_P(T) \ 1891 (RECORD_OR_UNION_CODE_P (TREE_CODE (T)) && TYPE_LANG_FLAG_5 (T)) 1892 1893 /* Nonzero if T is a class type but not an union. */ 1894 #define NON_UNION_CLASS_TYPE_P(T) \ 1895 (TREE_CODE (T) == RECORD_TYPE && TYPE_LANG_FLAG_5 (T)) 1896 1897 /* Keep these checks in ascending code order. */ 1898 #define RECORD_OR_UNION_CODE_P(T) \ 1899 ((T) == RECORD_TYPE || (T) == UNION_TYPE) 1900 #define OVERLOAD_TYPE_P(T) \ 1901 (CLASS_TYPE_P (T) || TREE_CODE (T) == ENUMERAL_TYPE) 1902 1903 /* True if this type is dependent. This predicate is only valid if 1904 TYPE_DEPENDENT_P_VALID is true. */ 1905 #define TYPE_DEPENDENT_P(NODE) TYPE_LANG_FLAG_0 (NODE) 1906 1907 /* True if dependent_type_p has been called for this type, with the 1908 result that TYPE_DEPENDENT_P is valid. */ 1909 #define TYPE_DEPENDENT_P_VALID(NODE) TYPE_LANG_FLAG_6(NODE) 1910 1911 /* Nonzero if this type is const-qualified. */ 1912 #define CP_TYPE_CONST_P(NODE) \ 1913 ((cp_type_quals (NODE) & TYPE_QUAL_CONST) != 0) 1914 1915 /* Nonzero if this type is volatile-qualified. */ 1916 #define CP_TYPE_VOLATILE_P(NODE) \ 1917 ((cp_type_quals (NODE) & TYPE_QUAL_VOLATILE) != 0) 1918 1919 /* Nonzero if this type is restrict-qualified. */ 1920 #define CP_TYPE_RESTRICT_P(NODE) \ 1921 ((cp_type_quals (NODE) & TYPE_QUAL_RESTRICT) != 0) 1922 1923 /* Nonzero if this type is const-qualified, but not 1924 volatile-qualified. Other qualifiers are ignored. This macro is 1925 used to test whether or not it is OK to bind an rvalue to a 1926 reference. */ 1927 #define CP_TYPE_CONST_NON_VOLATILE_P(NODE) \ 1928 ((cp_type_quals (NODE) & (TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE)) \ 1929 == TYPE_QUAL_CONST) 1930 1931 #define FUNCTION_ARG_CHAIN(NODE) \ 1932 TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (NODE))) 1933 1934 /* Given a FUNCTION_DECL, returns the first TREE_LIST out of TYPE_ARG_TYPES 1935 which refers to a user-written parameter. */ 1936 #define FUNCTION_FIRST_USER_PARMTYPE(NODE) \ 1937 skip_artificial_parms_for ((NODE), TYPE_ARG_TYPES (TREE_TYPE (NODE))) 1938 1939 /* Similarly, but for DECL_ARGUMENTS. */ 1940 #define FUNCTION_FIRST_USER_PARM(NODE) \ 1941 skip_artificial_parms_for ((NODE), DECL_ARGUMENTS (NODE)) 1942 1943 /* Nonzero iff TYPE is derived from PARENT. Ignores accessibility and 1944 ambiguity issues. */ 1945 #define DERIVED_FROM_P(PARENT, TYPE) \ 1946 (lookup_base ((TYPE), (PARENT), ba_any, NULL, tf_none) != NULL_TREE) 1947 1948 /* Gives the visibility specification for a class type. */ 1949 #define CLASSTYPE_VISIBILITY(TYPE) \ 1950 DECL_VISIBILITY (TYPE_MAIN_DECL (TYPE)) 1951 #define CLASSTYPE_VISIBILITY_SPECIFIED(TYPE) \ 1952 DECL_VISIBILITY_SPECIFIED (TYPE_MAIN_DECL (TYPE)) 1953 1954 struct GTY (()) tree_pair_s { 1955 tree purpose; 1956 tree value; 1957 }; 1958 typedef tree_pair_s *tree_pair_p; 1959 1960 /* This structure provides additional information above and beyond 1961 what is provide in the ordinary tree_type. In the past, we used it 1962 for the types of class types, template parameters types, typename 1963 types, and so forth. However, there can be many (tens to hundreds 1964 of thousands) of template parameter types in a compilation, and 1965 there's no need for this additional information in that case. 1966 Therefore, we now use this data structure only for class types. 1967 1968 In the past, it was thought that there would be relatively few 1969 class types. However, in the presence of heavy use of templates, 1970 many (i.e., thousands) of classes can easily be generated. 1971 Therefore, we should endeavor to keep the size of this structure to 1972 a minimum. */ 1973 struct GTY(()) lang_type { 1974 unsigned char align; 1975 1976 unsigned has_type_conversion : 1; 1977 unsigned has_copy_ctor : 1; 1978 unsigned has_default_ctor : 1; 1979 unsigned const_needs_init : 1; 1980 unsigned ref_needs_init : 1; 1981 unsigned has_const_copy_assign : 1; 1982 unsigned use_template : 2; 1983 1984 unsigned has_mutable : 1; 1985 unsigned com_interface : 1; 1986 unsigned non_pod_class : 1; 1987 unsigned nearly_empty_p : 1; 1988 unsigned user_align : 1; 1989 unsigned has_copy_assign : 1; 1990 unsigned has_new : 1; 1991 unsigned has_array_new : 1; 1992 1993 unsigned gets_delete : 2; 1994 unsigned interface_only : 1; 1995 unsigned interface_unknown : 1; 1996 unsigned contains_empty_class_p : 1; 1997 unsigned anon_aggr : 1; 1998 unsigned non_zero_init : 1; 1999 unsigned empty_p : 1; 2000 /* 32 bits allocated. */ 2001 2002 unsigned vec_new_uses_cookie : 1; 2003 unsigned declared_class : 1; 2004 unsigned diamond_shaped : 1; 2005 unsigned repeated_base : 1; 2006 unsigned being_defined : 1; 2007 unsigned debug_requested : 1; 2008 unsigned fields_readonly : 1; 2009 unsigned ptrmemfunc_flag : 1; 2010 2011 unsigned was_anonymous : 1; 2012 unsigned lazy_default_ctor : 1; 2013 unsigned lazy_copy_ctor : 1; 2014 unsigned lazy_copy_assign : 1; 2015 unsigned lazy_destructor : 1; 2016 unsigned has_const_copy_ctor : 1; 2017 unsigned has_complex_copy_ctor : 1; 2018 unsigned has_complex_copy_assign : 1; 2019 2020 unsigned non_aggregate : 1; 2021 unsigned has_complex_dflt : 1; 2022 unsigned has_list_ctor : 1; 2023 unsigned non_std_layout : 1; 2024 unsigned is_literal : 1; 2025 unsigned lazy_move_ctor : 1; 2026 unsigned lazy_move_assign : 1; 2027 unsigned has_complex_move_ctor : 1; 2028 2029 unsigned has_complex_move_assign : 1; 2030 unsigned has_constexpr_ctor : 1; 2031 unsigned unique_obj_representations : 1; 2032 unsigned unique_obj_representations_set : 1; 2033 2034 /* When adding a flag here, consider whether or not it ought to 2035 apply to a template instance if it applies to the template. If 2036 so, make sure to copy it in instantiate_class_template! */ 2037 2038 /* There are some bits left to fill out a 32-bit word. Keep track 2039 of this by updating the size of this bitfield whenever you add or 2040 remove a flag. */ 2041 unsigned dummy : 4; 2042 2043 tree primary_base; 2044 vec<tree_pair_s, va_gc> *vcall_indices; 2045 tree vtables; 2046 tree typeinfo_var; 2047 vec<tree, va_gc> *vbases; 2048 binding_table nested_udts; 2049 tree as_base; 2050 vec<tree, va_gc> *pure_virtuals; 2051 tree friend_classes; 2052 vec<tree, va_gc> * GTY((reorder ("resort_type_member_vec"))) members; 2053 tree key_method; 2054 tree decl_list; 2055 tree befriending_classes; 2056 /* In a RECORD_TYPE, information specific to Objective-C++, such 2057 as a list of adopted protocols or a pointer to a corresponding 2058 @interface. See objc/objc-act.h for details. */ 2059 tree objc_info; 2060 /* FIXME reuse another field? */ 2061 tree lambda_expr; 2062 }; 2063 2064 /* We used to have a variant type for lang_type. Keep the name of the 2065 checking accessor for the sole survivor. */ 2066 #define LANG_TYPE_CLASS_CHECK(NODE) (TYPE_LANG_SPECIFIC (NODE)) 2067 2068 /* Nonzero for _CLASSTYPE means that operator delete is defined. */ 2069 #define TYPE_GETS_DELETE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->gets_delete) 2070 #define TYPE_GETS_REG_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 1) 2071 2072 /* Nonzero if `new NODE[x]' should cause the allocation of extra 2073 storage to indicate how many array elements are in use. */ 2074 #define TYPE_VEC_NEW_USES_COOKIE(NODE) \ 2075 (CLASS_TYPE_P (NODE) \ 2076 && LANG_TYPE_CLASS_CHECK (NODE)->vec_new_uses_cookie) 2077 2078 /* Nonzero means that this _CLASSTYPE node defines ways of converting 2079 itself to other types. */ 2080 #define TYPE_HAS_CONVERSION(NODE) \ 2081 (LANG_TYPE_CLASS_CHECK (NODE)->has_type_conversion) 2082 2083 /* Nonzero means that NODE (a class type) has a default constructor -- 2084 but that it has not yet been declared. */ 2085 #define CLASSTYPE_LAZY_DEFAULT_CTOR(NODE) \ 2086 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_default_ctor) 2087 2088 /* Nonzero means that NODE (a class type) has a copy constructor -- 2089 but that it has not yet been declared. */ 2090 #define CLASSTYPE_LAZY_COPY_CTOR(NODE) \ 2091 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_ctor) 2092 2093 /* Nonzero means that NODE (a class type) has a move constructor -- 2094 but that it has not yet been declared. */ 2095 #define CLASSTYPE_LAZY_MOVE_CTOR(NODE) \ 2096 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_move_ctor) 2097 2098 /* Nonzero means that NODE (a class type) has an assignment operator 2099 -- but that it has not yet been declared. */ 2100 #define CLASSTYPE_LAZY_COPY_ASSIGN(NODE) \ 2101 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_assign) 2102 2103 /* Nonzero means that NODE (a class type) has an assignment operator 2104 -- but that it has not yet been declared. */ 2105 #define CLASSTYPE_LAZY_MOVE_ASSIGN(NODE) \ 2106 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_move_assign) 2107 2108 /* Nonzero means that NODE (a class type) has a destructor -- but that 2109 it has not yet been declared. */ 2110 #define CLASSTYPE_LAZY_DESTRUCTOR(NODE) \ 2111 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_destructor) 2112 2113 /* Nonzero means that NODE (a class type) is final */ 2114 #define CLASSTYPE_FINAL(NODE) \ 2115 TYPE_FINAL_P (NODE) 2116 2117 2118 /* Nonzero means that this _CLASSTYPE node overloads operator=(X&). */ 2119 #define TYPE_HAS_COPY_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_copy_assign) 2120 2121 /* True iff the class type NODE has an "operator =" whose parameter 2122 has a parameter of type "const X&". */ 2123 #define TYPE_HAS_CONST_COPY_ASSIGN(NODE) \ 2124 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_copy_assign) 2125 2126 /* Nonzero means that this _CLASSTYPE node has an X(X&) constructor. */ 2127 #define TYPE_HAS_COPY_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_copy_ctor) 2128 #define TYPE_HAS_CONST_COPY_CTOR(NODE) \ 2129 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_copy_ctor) 2130 2131 /* Nonzero if this class has an X(initializer_list<T>) constructor. */ 2132 #define TYPE_HAS_LIST_CTOR(NODE) \ 2133 (LANG_TYPE_CLASS_CHECK (NODE)->has_list_ctor) 2134 2135 /* Nonzero if this class has a constexpr constructor other than a copy/move 2136 constructor. Note that a class can have constexpr constructors for 2137 static initialization even if it isn't a literal class. */ 2138 #define TYPE_HAS_CONSTEXPR_CTOR(NODE) \ 2139 (LANG_TYPE_CLASS_CHECK (NODE)->has_constexpr_ctor) 2140 2141 /* Nonzero if this class defines an overloaded operator new. (An 2142 operator new [] doesn't count.) */ 2143 #define TYPE_HAS_NEW_OPERATOR(NODE) \ 2144 (LANG_TYPE_CLASS_CHECK (NODE)->has_new) 2145 2146 /* Nonzero if this class defines an overloaded operator new[]. */ 2147 #define TYPE_HAS_ARRAY_NEW_OPERATOR(NODE) \ 2148 (LANG_TYPE_CLASS_CHECK (NODE)->has_array_new) 2149 2150 /* Nonzero means that this type is being defined. I.e., the left brace 2151 starting the definition of this type has been seen. */ 2152 #define TYPE_BEING_DEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->being_defined) 2153 2154 /* Nonzero means that this type is either complete or being defined, so we 2155 can do lookup in it. */ 2156 #define COMPLETE_OR_OPEN_TYPE_P(NODE) \ 2157 (COMPLETE_TYPE_P (NODE) || (CLASS_TYPE_P (NODE) && TYPE_BEING_DEFINED (NODE))) 2158 2159 /* Mark bits for repeated base checks. */ 2160 #define TYPE_MARKED_P(NODE) TREE_LANG_FLAG_6 (TYPE_CHECK (NODE)) 2161 2162 /* Nonzero if the class NODE has multiple paths to the same (virtual) 2163 base object. */ 2164 #define CLASSTYPE_DIAMOND_SHAPED_P(NODE) \ 2165 (LANG_TYPE_CLASS_CHECK(NODE)->diamond_shaped) 2166 2167 /* Nonzero if the class NODE has multiple instances of the same base 2168 type. */ 2169 #define CLASSTYPE_REPEATED_BASE_P(NODE) \ 2170 (LANG_TYPE_CLASS_CHECK(NODE)->repeated_base) 2171 2172 /* The member function with which the vtable will be emitted: 2173 the first noninline non-pure-virtual member function. NULL_TREE 2174 if there is no key function or if this is a class template */ 2175 #define CLASSTYPE_KEY_METHOD(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->key_method) 2176 2177 /* Vector of members. During definition, it is unordered and only 2178 member functions are present. After completion it is sorted and 2179 contains both member functions and non-functions. STAT_HACK is 2180 involved to preserve oneslot per name invariant. */ 2181 #define CLASSTYPE_MEMBER_VEC(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->members) 2182 2183 /* For class templates, this is a TREE_LIST of all member data, 2184 functions, types, and friends in the order of declaration. 2185 The TREE_PURPOSE of each TREE_LIST is NULL_TREE for a friend, 2186 and the RECORD_TYPE for the class template otherwise. */ 2187 #define CLASSTYPE_DECL_LIST(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->decl_list) 2188 2189 /* A FUNCTION_DECL or OVERLOAD for the constructors for NODE. These 2190 are the constructors that take an in-charge parameter. */ 2191 #define CLASSTYPE_CONSTRUCTORS(NODE) \ 2192 (get_class_binding_direct (NODE, ctor_identifier)) 2193 2194 /* A FUNCTION_DECL for the destructor for NODE. This is the 2195 destructors that take an in-charge parameter. If 2196 CLASSTYPE_LAZY_DESTRUCTOR is true, then this entry will be NULL 2197 until the destructor is created with lazily_declare_fn. */ 2198 #define CLASSTYPE_DESTRUCTOR(NODE) \ 2199 (get_class_binding_direct (NODE, dtor_identifier)) 2200 2201 /* A dictionary of the nested user-defined-types (class-types, or enums) 2202 found within this class. This table includes nested member class 2203 templates. */ 2204 #define CLASSTYPE_NESTED_UTDS(NODE) \ 2205 (LANG_TYPE_CLASS_CHECK (NODE)->nested_udts) 2206 2207 /* Nonzero if NODE has a primary base class, i.e., a base class with 2208 which it shares the virtual function table pointer. */ 2209 #define CLASSTYPE_HAS_PRIMARY_BASE_P(NODE) \ 2210 (CLASSTYPE_PRIMARY_BINFO (NODE) != NULL_TREE) 2211 2212 /* If non-NULL, this is the binfo for the primary base class, i.e., 2213 the base class which contains the virtual function table pointer 2214 for this class. */ 2215 #define CLASSTYPE_PRIMARY_BINFO(NODE) \ 2216 (LANG_TYPE_CLASS_CHECK (NODE)->primary_base) 2217 2218 /* A vector of BINFOs for the direct and indirect virtual base classes 2219 that this type uses in a post-order depth-first left-to-right 2220 order. (In other words, these bases appear in the order that they 2221 should be initialized.) */ 2222 #define CLASSTYPE_VBASECLASSES(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->vbases) 2223 2224 /* The type corresponding to NODE when NODE is used as a base class, 2225 i.e., NODE without virtual base classes or tail padding. */ 2226 #define CLASSTYPE_AS_BASE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->as_base) 2227 2228 /* True iff NODE is the CLASSTYPE_AS_BASE version of some type. */ 2229 #define IS_FAKE_BASE_TYPE(NODE) \ 2230 (TREE_CODE (NODE) == RECORD_TYPE \ 2231 && TYPE_CONTEXT (NODE) && CLASS_TYPE_P (TYPE_CONTEXT (NODE)) \ 2232 && CLASSTYPE_AS_BASE (TYPE_CONTEXT (NODE)) == (NODE)) 2233 2234 /* These are the size and alignment of the type without its virtual 2235 base classes, for when we use this type as a base itself. */ 2236 #define CLASSTYPE_SIZE(NODE) TYPE_SIZE (CLASSTYPE_AS_BASE (NODE)) 2237 #define CLASSTYPE_SIZE_UNIT(NODE) TYPE_SIZE_UNIT (CLASSTYPE_AS_BASE (NODE)) 2238 #define CLASSTYPE_ALIGN(NODE) TYPE_ALIGN (CLASSTYPE_AS_BASE (NODE)) 2239 #define CLASSTYPE_USER_ALIGN(NODE) TYPE_USER_ALIGN (CLASSTYPE_AS_BASE (NODE)) 2240 2241 /* The alignment of NODE, without its virtual bases, in bytes. */ 2242 #define CLASSTYPE_ALIGN_UNIT(NODE) \ 2243 (CLASSTYPE_ALIGN (NODE) / BITS_PER_UNIT) 2244 2245 /* A vec<tree> of virtual functions which cannot be inherited by 2246 derived classes. When deriving from this type, the derived 2247 class must provide its own definition for each of these functions. */ 2248 #define CLASSTYPE_PURE_VIRTUALS(NODE) \ 2249 (LANG_TYPE_CLASS_CHECK (NODE)->pure_virtuals) 2250 2251 /* Nonzero means that this type is an abstract class type. */ 2252 #define ABSTRACT_CLASS_TYPE_P(NODE) \ 2253 (CLASS_TYPE_P (NODE) && CLASSTYPE_PURE_VIRTUALS(NODE)) 2254 2255 /* Nonzero means that this type has an X() constructor. */ 2256 #define TYPE_HAS_DEFAULT_CONSTRUCTOR(NODE) \ 2257 (LANG_TYPE_CLASS_CHECK (NODE)->has_default_ctor) 2258 2259 /* Nonzero means that this type contains a mutable member. */ 2260 #define CLASSTYPE_HAS_MUTABLE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_mutable) 2261 #define TYPE_HAS_MUTABLE_P(NODE) (cp_has_mutable_p (NODE)) 2262 2263 /* Nonzero means that this class type is not POD for the purpose of layout 2264 (as defined in the ABI). This is different from the language's POD. */ 2265 #define CLASSTYPE_NON_LAYOUT_POD_P(NODE) \ 2266 (LANG_TYPE_CLASS_CHECK (NODE)->non_pod_class) 2267 2268 /* Nonzero means that this class type is a non-standard-layout class. */ 2269 #define CLASSTYPE_NON_STD_LAYOUT(NODE) \ 2270 (LANG_TYPE_CLASS_CHECK (NODE)->non_std_layout) 2271 2272 /* Nonzero means that this class type does have unique object 2273 representations. */ 2274 #define CLASSTYPE_UNIQUE_OBJ_REPRESENTATIONS(NODE) \ 2275 (LANG_TYPE_CLASS_CHECK (NODE)->unique_obj_representations) 2276 2277 /* Nonzero means that this class type has 2278 CLASSTYPE_UNIQUE_OBJ_REPRESENTATIONS computed. */ 2279 #define CLASSTYPE_UNIQUE_OBJ_REPRESENTATIONS_SET(NODE) \ 2280 (LANG_TYPE_CLASS_CHECK (NODE)->unique_obj_representations_set) 2281 2282 /* Nonzero means that this class contains pod types whose default 2283 initialization is not a zero initialization (namely, pointers to 2284 data members). */ 2285 #define CLASSTYPE_NON_ZERO_INIT_P(NODE) \ 2286 (LANG_TYPE_CLASS_CHECK (NODE)->non_zero_init) 2287 2288 /* Nonzero if this class is "empty" in the sense of the C++ ABI. */ 2289 #define CLASSTYPE_EMPTY_P(NODE) \ 2290 (LANG_TYPE_CLASS_CHECK (NODE)->empty_p) 2291 2292 /* Nonzero if this class is "nearly empty", i.e., contains only a 2293 virtual function table pointer. */ 2294 #define CLASSTYPE_NEARLY_EMPTY_P(NODE) \ 2295 (LANG_TYPE_CLASS_CHECK (NODE)->nearly_empty_p) 2296 2297 /* Nonzero if this class contains an empty subobject. */ 2298 #define CLASSTYPE_CONTAINS_EMPTY_CLASS_P(NODE) \ 2299 (LANG_TYPE_CLASS_CHECK (NODE)->contains_empty_class_p) 2300 2301 /* A list of class types of which this type is a friend. The 2302 TREE_VALUE is normally a TYPE, but will be a TEMPLATE_DECL in the 2303 case of a template friend. */ 2304 #define CLASSTYPE_FRIEND_CLASSES(NODE) \ 2305 (LANG_TYPE_CLASS_CHECK (NODE)->friend_classes) 2306 2307 /* A list of the classes which grant friendship to this class. */ 2308 #define CLASSTYPE_BEFRIENDING_CLASSES(NODE) \ 2309 (LANG_TYPE_CLASS_CHECK (NODE)->befriending_classes) 2310 2311 /* The associated LAMBDA_EXPR that made this class. */ 2312 #define CLASSTYPE_LAMBDA_EXPR(NODE) \ 2313 (LANG_TYPE_CLASS_CHECK (NODE)->lambda_expr) 2314 /* The extra mangling scope for this closure type. */ 2315 #define LAMBDA_TYPE_EXTRA_SCOPE(NODE) \ 2316 (LAMBDA_EXPR_EXTRA_SCOPE (CLASSTYPE_LAMBDA_EXPR (NODE))) 2317 2318 /* Say whether this node was declared as a "class" or a "struct". */ 2319 #define CLASSTYPE_DECLARED_CLASS(NODE) \ 2320 (LANG_TYPE_CLASS_CHECK (NODE)->declared_class) 2321 2322 /* Nonzero if this class has const members 2323 which have no specified initialization. */ 2324 #define CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE) \ 2325 (TYPE_LANG_SPECIFIC (NODE) \ 2326 ? LANG_TYPE_CLASS_CHECK (NODE)->const_needs_init : 0) 2327 #define SET_CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE, VALUE) \ 2328 (LANG_TYPE_CLASS_CHECK (NODE)->const_needs_init = (VALUE)) 2329 2330 /* Nonzero if this class has ref members 2331 which have no specified initialization. */ 2332 #define CLASSTYPE_REF_FIELDS_NEED_INIT(NODE) \ 2333 (TYPE_LANG_SPECIFIC (NODE) \ 2334 ? LANG_TYPE_CLASS_CHECK (NODE)->ref_needs_init : 0) 2335 #define SET_CLASSTYPE_REF_FIELDS_NEED_INIT(NODE, VALUE) \ 2336 (LANG_TYPE_CLASS_CHECK (NODE)->ref_needs_init = (VALUE)) 2337 2338 /* Nonzero if this class is included from a header file which employs 2339 `#pragma interface', and it is not included in its implementation file. */ 2340 #define CLASSTYPE_INTERFACE_ONLY(NODE) \ 2341 (LANG_TYPE_CLASS_CHECK (NODE)->interface_only) 2342 2343 /* True if we have already determined whether or not vtables, VTTs, 2344 typeinfo, and other similar per-class data should be emitted in 2345 this translation unit. This flag does not indicate whether or not 2346 these items should be emitted; it only indicates that we know one 2347 way or the other. */ 2348 #define CLASSTYPE_INTERFACE_KNOWN(NODE) \ 2349 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown == 0) 2350 /* The opposite of CLASSTYPE_INTERFACE_KNOWN. */ 2351 #define CLASSTYPE_INTERFACE_UNKNOWN(NODE) \ 2352 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown) 2353 2354 #define SET_CLASSTYPE_INTERFACE_UNKNOWN_X(NODE,X) \ 2355 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = !!(X)) 2356 #define SET_CLASSTYPE_INTERFACE_UNKNOWN(NODE) \ 2357 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 1) 2358 #define SET_CLASSTYPE_INTERFACE_KNOWN(NODE) \ 2359 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 0) 2360 2361 /* Nonzero if a _DECL node requires us to output debug info for this class. */ 2362 #define CLASSTYPE_DEBUG_REQUESTED(NODE) \ 2363 (LANG_TYPE_CLASS_CHECK (NODE)->debug_requested) 2364 2365 /* Additional macros for inheritance information. */ 2366 2367 /* Nonzero means that this class is on a path leading to a new vtable. */ 2368 #define BINFO_VTABLE_PATH_MARKED(NODE) BINFO_FLAG_1 (NODE) 2369 2370 /* Nonzero means B (a BINFO) has its own vtable. Any copies will not 2371 have this flag set. */ 2372 #define BINFO_NEW_VTABLE_MARKED(B) (BINFO_FLAG_2 (B)) 2373 2374 /* Compare a BINFO_TYPE with another type for equality. For a binfo, 2375 this is functionally equivalent to using same_type_p, but 2376 measurably faster. At least one of the arguments must be a 2377 BINFO_TYPE. The other can be a BINFO_TYPE or a regular type. If 2378 BINFO_TYPE(T) ever stops being the main variant of the class the 2379 binfo is for, this macro must change. */ 2380 #define SAME_BINFO_TYPE_P(A, B) ((A) == (B)) 2381 2382 /* Any subobject that needs a new vtable must have a vptr and must not 2383 be a non-virtual primary base (since it would then use the vtable from a 2384 derived class and never become non-primary.) */ 2385 #define SET_BINFO_NEW_VTABLE_MARKED(B) \ 2386 (BINFO_NEW_VTABLE_MARKED (B) = 1, \ 2387 gcc_assert (!BINFO_PRIMARY_P (B) || BINFO_VIRTUAL_P (B)), \ 2388 gcc_assert (TYPE_VFIELD (BINFO_TYPE (B)))) 2389 2390 /* Nonzero if this binfo is for a dependent base - one that should not 2391 be searched. */ 2392 #define BINFO_DEPENDENT_BASE_P(NODE) BINFO_FLAG_3 (NODE) 2393 2394 /* Nonzero if this binfo has lost its primary base binfo (because that 2395 is a nearly-empty virtual base that has been taken by some other 2396 base in the complete hierarchy. */ 2397 #define BINFO_LOST_PRIMARY_P(NODE) BINFO_FLAG_4 (NODE) 2398 2399 /* Nonzero if this BINFO is a primary base class. */ 2400 #define BINFO_PRIMARY_P(NODE) BINFO_FLAG_5(NODE) 2401 2402 /* A vec<tree_pair_s> of the vcall indices associated with the class 2403 NODE. The PURPOSE of each element is a FUNCTION_DECL for a virtual 2404 function. The VALUE is the index into the virtual table where the 2405 vcall offset for that function is stored, when NODE is a virtual 2406 base. */ 2407 #define CLASSTYPE_VCALL_INDICES(NODE) \ 2408 (LANG_TYPE_CLASS_CHECK (NODE)->vcall_indices) 2409 2410 /* The various vtables for the class NODE. The primary vtable will be 2411 first, followed by the construction vtables and VTT, if any. */ 2412 #define CLASSTYPE_VTABLES(NODE) \ 2413 (LANG_TYPE_CLASS_CHECK (NODE)->vtables) 2414 2415 /* The std::type_info variable representing this class, or NULL if no 2416 such variable has been created. This field is only set for the 2417 TYPE_MAIN_VARIANT of the class. */ 2418 #define CLASSTYPE_TYPEINFO_VAR(NODE) \ 2419 (LANG_TYPE_CLASS_CHECK (NODE)->typeinfo_var) 2420 2421 /* Accessor macros for the BINFO_VIRTUALS list. */ 2422 2423 /* The number of bytes by which to adjust the `this' pointer when 2424 calling this virtual function. Subtract this value from the this 2425 pointer. Always non-NULL, might be constant zero though. */ 2426 #define BV_DELTA(NODE) (TREE_PURPOSE (NODE)) 2427 2428 /* If non-NULL, the vtable index at which to find the vcall offset 2429 when calling this virtual function. Add the value at that vtable 2430 index to the this pointer. */ 2431 #define BV_VCALL_INDEX(NODE) (TREE_TYPE (NODE)) 2432 2433 /* The function to call. */ 2434 #define BV_FN(NODE) (TREE_VALUE (NODE)) 2435 2436 /* Whether or not this entry is for a lost primary virtual base. */ 2437 #define BV_LOST_PRIMARY(NODE) (TREE_LANG_FLAG_0 (NODE)) 2438 2439 /* For FUNCTION_TYPE or METHOD_TYPE, a list of the exceptions that 2440 this type can raise. Each TREE_VALUE is a _TYPE. The TREE_VALUE 2441 will be NULL_TREE to indicate a throw specification of `()', or 2442 no exceptions allowed. For a noexcept specification, TREE_VALUE 2443 is NULL_TREE and TREE_PURPOSE is the constant-expression. For 2444 a deferred noexcept-specification, TREE_PURPOSE is a DEFERRED_NOEXCEPT 2445 (for templates) or an OVERLOAD list of functions (for implicitly 2446 declared functions). */ 2447 #define TYPE_RAISES_EXCEPTIONS(NODE) \ 2448 TYPE_LANG_SLOT_1 (FUNC_OR_METHOD_CHECK (NODE)) 2449 2450 /* For FUNCTION_TYPE or METHOD_TYPE, return 1 iff it is declared `throw()' 2451 or noexcept(true). */ 2452 #define TYPE_NOTHROW_P(NODE) nothrow_spec_p (TYPE_RAISES_EXCEPTIONS (NODE)) 2453 2454 /* For FUNCTION_TYPE or METHOD_TYPE, true if NODE is noexcept. This is the 2455 case for things declared noexcept(true) and, with -fnothrow-opt, for 2456 throw() functions. */ 2457 #define TYPE_NOEXCEPT_P(NODE) type_noexcept_p (NODE) 2458 2459 /* The binding level associated with the namespace. */ 2460 #define NAMESPACE_LEVEL(NODE) \ 2461 (LANG_DECL_NS_CHECK (NODE)->level) 2462 2463 /* Discriminator values for lang_decl. */ 2464 2465 enum lang_decl_selector 2466 { 2467 lds_min, 2468 lds_fn, 2469 lds_ns, 2470 lds_parm, 2471 lds_decomp 2472 }; 2473 2474 /* Flags shared by all forms of DECL_LANG_SPECIFIC. 2475 2476 Some of the flags live here only to make lang_decl_min/fn smaller. Do 2477 not make this struct larger than 32 bits; instead, make sel smaller. */ 2478 2479 struct GTY(()) lang_decl_base { 2480 /* Larger than necessary for faster access. */ 2481 ENUM_BITFIELD(lang_decl_selector) selector : 16; 2482 ENUM_BITFIELD(languages) language : 1; 2483 unsigned use_template : 2; 2484 unsigned not_really_extern : 1; /* var or fn */ 2485 unsigned initialized_in_class : 1; /* var or fn */ 2486 unsigned repo_available_p : 1; /* var or fn */ 2487 unsigned threadprivate_or_deleted_p : 1; /* var or fn */ 2488 unsigned anticipated_p : 1; /* fn, type or template */ 2489 /* anticipated_p reused as DECL_OMP_PRIVATIZED_MEMBER in var */ 2490 unsigned friend_or_tls : 1; /* var, fn, type or template */ 2491 unsigned unknown_bound_p : 1; /* var */ 2492 unsigned odr_used : 1; /* var or fn */ 2493 unsigned u2sel : 1; 2494 unsigned concept_p : 1; /* applies to vars and functions */ 2495 unsigned var_declared_inline_p : 1; /* var */ 2496 unsigned dependent_init_p : 1; /* var */ 2497 /* 1 spare bit */ 2498 }; 2499 2500 /* True for DECL codes which have template info and access. */ 2501 #define LANG_DECL_HAS_MIN(NODE) \ 2502 (VAR_OR_FUNCTION_DECL_P (NODE) \ 2503 || TREE_CODE (NODE) == FIELD_DECL \ 2504 || TREE_CODE (NODE) == CONST_DECL \ 2505 || TREE_CODE (NODE) == TYPE_DECL \ 2506 || TREE_CODE (NODE) == TEMPLATE_DECL \ 2507 || TREE_CODE (NODE) == USING_DECL) 2508 2509 /* DECL_LANG_SPECIFIC for the above codes. */ 2510 2511 struct GTY(()) lang_decl_min { 2512 struct lang_decl_base base; 2513 2514 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is 2515 THUNK_ALIAS. 2516 In a FUNCTION_DECL for which DECL_THUNK_P does not hold, 2517 VAR_DECL, TYPE_DECL, or TEMPLATE_DECL, this is 2518 DECL_TEMPLATE_INFO. */ 2519 tree template_info; 2520 2521 union lang_decl_u2 { 2522 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is 2523 THUNK_VIRTUAL_OFFSET. 2524 In a VAR_DECL for which DECL_HAS_VALUE_EXPR_P holds, 2525 this is DECL_CAPTURED_VARIABLE. 2526 Otherwise this is DECL_ACCESS. */ 2527 tree GTY ((tag ("0"))) access; 2528 2529 /* For TREE_STATIC VAR_DECL in function, this is DECL_DISCRIMINATOR. */ 2530 int GTY ((tag ("1"))) discriminator; 2531 } GTY ((desc ("%0.u.base.u2sel"))) u2; 2532 }; 2533 2534 /* Additional DECL_LANG_SPECIFIC information for functions. */ 2535 2536 struct GTY(()) lang_decl_fn { 2537 struct lang_decl_min min; 2538 2539 /* In a overloaded operator, this is the compressed operator code. */ 2540 unsigned ovl_op_code : 6; 2541 unsigned global_ctor_p : 1; 2542 unsigned global_dtor_p : 1; 2543 2544 unsigned static_function : 1; 2545 unsigned pure_virtual : 1; 2546 unsigned defaulted_p : 1; 2547 unsigned has_in_charge_parm_p : 1; 2548 unsigned has_vtt_parm_p : 1; 2549 unsigned pending_inline_p : 1; 2550 unsigned nonconverting : 1; 2551 unsigned thunk_p : 1; 2552 2553 unsigned this_thunk_p : 1; 2554 unsigned hidden_friend_p : 1; 2555 unsigned omp_declare_reduction_p : 1; 2556 unsigned spare : 13; 2557 2558 /* 32-bits padding on 64-bit host. */ 2559 2560 /* For a non-thunk function decl, this is a tree list of 2561 friendly classes. For a thunk function decl, it is the 2562 thunked to function decl. */ 2563 tree befriending_classes; 2564 2565 /* For a non-virtual FUNCTION_DECL, this is 2566 DECL_FRIEND_CONTEXT. For a virtual FUNCTION_DECL for which 2567 DECL_THIS_THUNK_P does not hold, this is DECL_THUNKS. Both 2568 this pointer and result pointer adjusting thunks are 2569 chained here. This pointer thunks to return pointer thunks 2570 will be chained on the return pointer thunk. */ 2571 tree context; 2572 2573 union lang_decl_u5 2574 { 2575 /* In a non-thunk FUNCTION_DECL or TEMPLATE_DECL, this is 2576 DECL_CLONED_FUNCTION. */ 2577 tree GTY ((tag ("0"))) cloned_function; 2578 2579 /* In a FUNCTION_DECL for which THUNK_P holds this is the 2580 THUNK_FIXED_OFFSET. */ 2581 HOST_WIDE_INT GTY ((tag ("1"))) fixed_offset; 2582 } GTY ((desc ("%1.thunk_p"))) u5; 2583 2584 union lang_decl_u3 2585 { 2586 struct cp_token_cache * GTY ((tag ("1"))) pending_inline_info; 2587 struct language_function * GTY ((tag ("0"))) 2588 saved_language_function; 2589 } GTY ((desc ("%1.pending_inline_p"))) u; 2590 2591 }; 2592 2593 /* DECL_LANG_SPECIFIC for namespaces. */ 2594 2595 struct GTY(()) lang_decl_ns { 2596 struct lang_decl_base base; 2597 cp_binding_level *level; 2598 2599 /* using directives and inline children. These need to be va_gc, 2600 because of PCH. */ 2601 vec<tree, va_gc> *usings; 2602 vec<tree, va_gc> *inlinees; 2603 2604 /* Hash table of bound decls. It'd be nice to have this inline, but 2605 as the hash_map has a dtor, we can't then put this struct into a 2606 union (until moving to c++11). */ 2607 hash_table<named_decl_hash> *bindings; 2608 }; 2609 2610 /* DECL_LANG_SPECIFIC for parameters. */ 2611 2612 struct GTY(()) lang_decl_parm { 2613 struct lang_decl_base base; 2614 int level; 2615 int index; 2616 }; 2617 2618 /* Additional DECL_LANG_SPECIFIC information for structured bindings. */ 2619 2620 struct GTY(()) lang_decl_decomp { 2621 struct lang_decl_min min; 2622 /* The artificial underlying "e" variable of the structured binding 2623 variable. */ 2624 tree base; 2625 }; 2626 2627 /* DECL_LANG_SPECIFIC for all types. It would be nice to just make this a 2628 union rather than a struct containing a union as its only field, but 2629 tree.h declares it as a struct. */ 2630 2631 struct GTY(()) lang_decl { 2632 union GTY((desc ("%h.base.selector"))) lang_decl_u { 2633 /* Nothing of only the base type exists. */ 2634 struct lang_decl_base GTY ((default)) base; 2635 struct lang_decl_min GTY((tag ("lds_min"))) min; 2636 struct lang_decl_fn GTY ((tag ("lds_fn"))) fn; 2637 struct lang_decl_ns GTY((tag ("lds_ns"))) ns; 2638 struct lang_decl_parm GTY((tag ("lds_parm"))) parm; 2639 struct lang_decl_decomp GTY((tag ("lds_decomp"))) decomp; 2640 } u; 2641 }; 2642 2643 /* Looks through a template (if present) to find what it declares. */ 2644 #define STRIP_TEMPLATE(NODE) \ 2645 (TREE_CODE (NODE) == TEMPLATE_DECL ? DECL_TEMPLATE_RESULT (NODE) : NODE) 2646 2647 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007) 2648 2649 #define LANG_DECL_MIN_CHECK(NODE) __extension__ \ 2650 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 2651 if (!LANG_DECL_HAS_MIN (NODE)) \ 2652 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 2653 <->u.min; }) 2654 2655 /* We want to be able to check DECL_CONSTRUCTOR_P and such on a function 2656 template, not just on a FUNCTION_DECL. So when looking for things in 2657 lang_decl_fn, look down through a TEMPLATE_DECL into its result. */ 2658 #define LANG_DECL_FN_CHECK(NODE) __extension__ \ 2659 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE)); \ 2660 if (!DECL_DECLARES_FUNCTION_P (NODE) \ 2661 || lt->u.base.selector != lds_fn) \ 2662 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 2663 <->u.fn; }) 2664 2665 #define LANG_DECL_NS_CHECK(NODE) __extension__ \ 2666 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 2667 if (TREE_CODE (NODE) != NAMESPACE_DECL \ 2668 || lt->u.base.selector != lds_ns) \ 2669 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 2670 <->u.ns; }) 2671 2672 #define LANG_DECL_PARM_CHECK(NODE) __extension__ \ 2673 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 2674 if (TREE_CODE (NODE) != PARM_DECL \ 2675 || lt->u.base.selector != lds_parm) \ 2676 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 2677 <->u.parm; }) 2678 2679 #define LANG_DECL_DECOMP_CHECK(NODE) __extension__ \ 2680 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 2681 if (!VAR_P (NODE) \ 2682 || lt->u.base.selector != lds_decomp) \ 2683 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 2684 <->u.decomp; }) 2685 2686 #define LANG_DECL_U2_CHECK(NODE, TF) __extension__ \ 2687 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 2688 if (!LANG_DECL_HAS_MIN (NODE) || lt->u.base.u2sel != TF) \ 2689 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 2690 <->u.min.u2; }) 2691 2692 #else 2693 2694 #define LANG_DECL_MIN_CHECK(NODE) \ 2695 (&DECL_LANG_SPECIFIC (NODE)->u.min) 2696 2697 #define LANG_DECL_FN_CHECK(NODE) \ 2698 (&DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE))->u.fn) 2699 2700 #define LANG_DECL_NS_CHECK(NODE) \ 2701 (&DECL_LANG_SPECIFIC (NODE)->u.ns) 2702 2703 #define LANG_DECL_PARM_CHECK(NODE) \ 2704 (&DECL_LANG_SPECIFIC (NODE)->u.parm) 2705 2706 #define LANG_DECL_DECOMP_CHECK(NODE) \ 2707 (&DECL_LANG_SPECIFIC (NODE)->u.decomp) 2708 2709 #define LANG_DECL_U2_CHECK(NODE, TF) \ 2710 (&DECL_LANG_SPECIFIC (NODE)->u.min.u2) 2711 2712 #endif /* ENABLE_TREE_CHECKING */ 2713 2714 /* For a FUNCTION_DECL or a VAR_DECL, the language linkage for the 2715 declaration. Some entities (like a member function in a local 2716 class, or a local variable) do not have linkage at all, and this 2717 macro should not be used in those cases. 2718 2719 Implementation note: A FUNCTION_DECL without DECL_LANG_SPECIFIC was 2720 created by language-independent code, and has C linkage. Most 2721 VAR_DECLs have C++ linkage, and do not have DECL_LANG_SPECIFIC, but 2722 we do create DECL_LANG_SPECIFIC for variables with non-C++ linkage. */ 2723 #define DECL_LANGUAGE(NODE) \ 2724 (DECL_LANG_SPECIFIC (NODE) \ 2725 ? DECL_LANG_SPECIFIC (NODE)->u.base.language \ 2726 : (TREE_CODE (NODE) == FUNCTION_DECL \ 2727 ? lang_c : lang_cplusplus)) 2728 2729 /* Set the language linkage for NODE to LANGUAGE. */ 2730 #define SET_DECL_LANGUAGE(NODE, LANGUAGE) \ 2731 (DECL_LANG_SPECIFIC (NODE)->u.base.language = (LANGUAGE)) 2732 2733 /* For FUNCTION_DECLs and TEMPLATE_DECLs: nonzero means that this function 2734 is a constructor. */ 2735 #define DECL_CONSTRUCTOR_P(NODE) \ 2736 IDENTIFIER_CTOR_P (DECL_NAME (NODE)) 2737 2738 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a complete 2739 object. */ 2740 #define DECL_COMPLETE_CONSTRUCTOR_P(NODE) \ 2741 (DECL_NAME (NODE) == complete_ctor_identifier) 2742 2743 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a base 2744 object. */ 2745 #define DECL_BASE_CONSTRUCTOR_P(NODE) \ 2746 (DECL_NAME (NODE) == base_ctor_identifier) 2747 2748 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor, but not either the 2749 specialized in-charge constructor or the specialized not-in-charge 2750 constructor. */ 2751 #define DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P(NODE) \ 2752 (DECL_NAME (NODE) == ctor_identifier) 2753 2754 /* Nonzero if NODE (a FUNCTION_DECL) is a copy constructor. */ 2755 #define DECL_COPY_CONSTRUCTOR_P(NODE) \ 2756 (DECL_CONSTRUCTOR_P (NODE) && copy_fn_p (NODE) > 0) 2757 2758 /* Nonzero if NODE (a FUNCTION_DECL) is a move constructor. */ 2759 #define DECL_MOVE_CONSTRUCTOR_P(NODE) \ 2760 (DECL_CONSTRUCTOR_P (NODE) && move_fn_p (NODE)) 2761 2762 /* Nonzero if NODE (a FUNCTION_DECL or TEMPLATE_DECL) 2763 is a destructor. */ 2764 #define DECL_DESTRUCTOR_P(NODE) \ 2765 IDENTIFIER_DTOR_P (DECL_NAME (NODE)) 2766 2767 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor, but not the 2768 specialized in-charge constructor, in-charge deleting constructor, 2769 or the base destructor. */ 2770 #define DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P(NODE) \ 2771 (DECL_NAME (NODE) == dtor_identifier) 2772 2773 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete 2774 object. */ 2775 #define DECL_COMPLETE_DESTRUCTOR_P(NODE) \ 2776 (DECL_NAME (NODE) == complete_dtor_identifier) 2777 2778 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a base 2779 object. */ 2780 #define DECL_BASE_DESTRUCTOR_P(NODE) \ 2781 (DECL_NAME (NODE) == base_dtor_identifier) 2782 2783 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete 2784 object that deletes the object after it has been destroyed. */ 2785 #define DECL_DELETING_DESTRUCTOR_P(NODE) \ 2786 (DECL_NAME (NODE) == deleting_dtor_identifier) 2787 2788 /* Nonzero if NODE (a FUNCTION_DECL) is a cloned constructor or 2789 destructor. */ 2790 #define DECL_CLONED_FUNCTION_P(NODE) (!!decl_cloned_function_p (NODE, true)) 2791 2792 /* If DECL_CLONED_FUNCTION_P holds, this is the function that was 2793 cloned. */ 2794 #define DECL_CLONED_FUNCTION(NODE) (*decl_cloned_function_p (NODE, false)) 2795 2796 /* Perform an action for each clone of FN, if FN is a function with 2797 clones. This macro should be used like: 2798 2799 FOR_EACH_CLONE (clone, fn) 2800 { ... } 2801 2802 */ 2803 #define FOR_EACH_CLONE(CLONE, FN) \ 2804 if (!(TREE_CODE (FN) == FUNCTION_DECL \ 2805 && (DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (FN) \ 2806 || DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (FN))))\ 2807 ; \ 2808 else \ 2809 for (CLONE = DECL_CHAIN (FN); \ 2810 CLONE && DECL_CLONED_FUNCTION_P (CLONE); \ 2811 CLONE = DECL_CHAIN (CLONE)) 2812 2813 /* Nonzero if NODE has DECL_DISCRIMINATOR and not DECL_ACCESS. */ 2814 #define DECL_DISCRIMINATOR_P(NODE) \ 2815 (VAR_P (NODE) && DECL_FUNCTION_SCOPE_P (NODE)) 2816 2817 /* Discriminator for name mangling. */ 2818 #define DECL_DISCRIMINATOR(NODE) (LANG_DECL_U2_CHECK (NODE, 1)->discriminator) 2819 2820 /* True iff DECL_DISCRIMINATOR is set for a DECL_DISCRIMINATOR_P decl. */ 2821 #define DECL_DISCRIMINATOR_SET_P(NODE) \ 2822 (DECL_LANG_SPECIFIC (NODE) && DECL_LANG_SPECIFIC (NODE)->u.base.u2sel == 1) 2823 2824 /* The index of a user-declared parameter in its function, starting at 1. 2825 All artificial parameters will have index 0. */ 2826 #define DECL_PARM_INDEX(NODE) \ 2827 (LANG_DECL_PARM_CHECK (NODE)->index) 2828 2829 /* The level of a user-declared parameter in its function, starting at 1. 2830 A parameter of the function will have level 1; a parameter of the first 2831 nested function declarator (i.e. t in void f (void (*p)(T t))) will have 2832 level 2. */ 2833 #define DECL_PARM_LEVEL(NODE) \ 2834 (LANG_DECL_PARM_CHECK (NODE)->level) 2835 2836 /* Nonzero if the VTT parm has been added to NODE. */ 2837 #define DECL_HAS_VTT_PARM_P(NODE) \ 2838 (LANG_DECL_FN_CHECK (NODE)->has_vtt_parm_p) 2839 2840 /* Nonzero if NODE is a FUNCTION_DECL for which a VTT parameter is 2841 required. */ 2842 #define DECL_NEEDS_VTT_PARM_P(NODE) \ 2843 (CLASSTYPE_VBASECLASSES (DECL_CONTEXT (NODE)) \ 2844 && (DECL_BASE_CONSTRUCTOR_P (NODE) \ 2845 || DECL_BASE_DESTRUCTOR_P (NODE))) 2846 2847 /* Nonzero if NODE is a user-defined conversion operator. */ 2848 #define DECL_CONV_FN_P(NODE) IDENTIFIER_CONV_OP_P (DECL_NAME (NODE)) 2849 2850 /* The type to which conversion operator FN converts to. */ 2851 #define DECL_CONV_FN_TYPE(FN) \ 2852 TREE_TYPE ((gcc_checking_assert (DECL_CONV_FN_P (FN)), DECL_NAME (FN))) 2853 2854 /* Nonzero if NODE, a static data member, was declared in its class as an 2855 array of unknown bound. */ 2856 #define VAR_HAD_UNKNOWN_BOUND(NODE) \ 2857 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE)) \ 2858 ? DECL_LANG_SPECIFIC (NODE)->u.base.unknown_bound_p \ 2859 : false) 2860 #define SET_VAR_HAD_UNKNOWN_BOUND(NODE) \ 2861 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))->u.base.unknown_bound_p = true) 2862 2863 /* True iff decl NODE is for an overloaded operator. */ 2864 #define DECL_OVERLOADED_OPERATOR_P(NODE) \ 2865 IDENTIFIER_ANY_OP_P (DECL_NAME (NODE)) 2866 2867 /* Nonzero if NODE is an assignment operator (including += and such). */ 2868 #define DECL_ASSIGNMENT_OPERATOR_P(NODE) \ 2869 IDENTIFIER_ASSIGN_OP_P (DECL_NAME (NODE)) 2870 2871 /* NODE is a function_decl for an overloaded operator. Return its 2872 compressed (raw) operator code. Note that this is not a TREE_CODE. */ 2873 #define DECL_OVERLOADED_OPERATOR_CODE_RAW(NODE) \ 2874 (LANG_DECL_FN_CHECK (NODE)->ovl_op_code) 2875 2876 /* DECL is an overloaded operator. Test whether it is for TREE_CODE 2877 (a literal constant). */ 2878 #define DECL_OVERLOADED_OPERATOR_IS(DECL, CODE) \ 2879 (DECL_OVERLOADED_OPERATOR_CODE_RAW (DECL) == OVL_OP_##CODE) 2880 2881 /* For FUNCTION_DECLs: nonzero means that this function is a 2882 constructor or a destructor with an extra in-charge parameter to 2883 control whether or not virtual bases are constructed. */ 2884 #define DECL_HAS_IN_CHARGE_PARM_P(NODE) \ 2885 (LANG_DECL_FN_CHECK (NODE)->has_in_charge_parm_p) 2886 2887 /* Nonzero if DECL is a declaration of __builtin_constant_p. */ 2888 #define DECL_IS_BUILTIN_CONSTANT_P(NODE) \ 2889 (TREE_CODE (NODE) == FUNCTION_DECL \ 2890 && DECL_BUILT_IN_CLASS (NODE) == BUILT_IN_NORMAL \ 2891 && DECL_FUNCTION_CODE (NODE) == BUILT_IN_CONSTANT_P) 2892 2893 /* Nonzero for _DECL means that this decl appears in (or will appear 2894 in) as a member in a RECORD_TYPE or UNION_TYPE node. It is also for 2895 detecting circularity in case members are multiply defined. In the 2896 case of a VAR_DECL, it is also used to determine how program storage 2897 should be allocated. */ 2898 #define DECL_IN_AGGR_P(NODE) (DECL_LANG_FLAG_3 (NODE)) 2899 2900 /* Nonzero for a VAR_DECL means that the variable's initialization (if 2901 any) has been processed. (In general, DECL_INITIALIZED_P is 2902 !DECL_EXTERNAL, but static data members may be initialized even if 2903 not defined.) */ 2904 #define DECL_INITIALIZED_P(NODE) \ 2905 (TREE_LANG_FLAG_1 (VAR_DECL_CHECK (NODE))) 2906 2907 /* Nonzero for a VAR_DECL iff an explicit initializer was provided 2908 or a non-trivial constructor is called. */ 2909 #define DECL_NONTRIVIALLY_INITIALIZED_P(NODE) \ 2910 (TREE_LANG_FLAG_3 (VAR_DECL_CHECK (NODE))) 2911 2912 /* Nonzero for a VAR_DECL that was initialized with a 2913 constant-expression. */ 2914 #define DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P(NODE) \ 2915 (TREE_LANG_FLAG_2 (VAR_DECL_CHECK (NODE))) 2916 2917 /* Nonzero if the DECL was initialized in the class definition itself, 2918 rather than outside the class. This is used for both static member 2919 VAR_DECLS, and FUNCTION_DECLS that are defined in the class. */ 2920 #define DECL_INITIALIZED_IN_CLASS_P(DECL) \ 2921 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \ 2922 ->u.base.initialized_in_class) 2923 2924 /* Nonzero if the DECL is used in the sense of 3.2 [basic.def.odr]. 2925 Only available for decls with DECL_LANG_SPECIFIC. */ 2926 #define DECL_ODR_USED(DECL) \ 2927 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \ 2928 ->u.base.odr_used) 2929 2930 /* Nonzero for DECL means that this decl is just a friend declaration, 2931 and should not be added to the list of members for this class. */ 2932 #define DECL_FRIEND_P(NODE) \ 2933 (DECL_LANG_SPECIFIC (TYPE_FUNCTION_OR_TEMPLATE_DECL_CHECK (NODE)) \ 2934 ->u.base.friend_or_tls) 2935 2936 /* Nonzero if the thread-local variable was declared with __thread as 2937 opposed to thread_local. */ 2938 #define DECL_GNU_TLS_P(NODE) \ 2939 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE)) \ 2940 && DECL_LANG_SPECIFIC (NODE)->u.base.friend_or_tls) 2941 #define SET_DECL_GNU_TLS_P(NODE) \ 2942 (retrofit_lang_decl (VAR_DECL_CHECK (NODE)), \ 2943 DECL_LANG_SPECIFIC (NODE)->u.base.friend_or_tls = true) 2944 2945 /* A TREE_LIST of the types which have befriended this FUNCTION_DECL. */ 2946 #define DECL_BEFRIENDING_CLASSES(NODE) \ 2947 (LANG_DECL_FN_CHECK (NODE)->befriending_classes) 2948 2949 /* Nonzero for FUNCTION_DECL means that this decl is a static 2950 member function. */ 2951 #define DECL_STATIC_FUNCTION_P(NODE) \ 2952 (LANG_DECL_FN_CHECK (NODE)->static_function) 2953 2954 /* Nonzero for FUNCTION_DECL means that this decl is a non-static 2955 member function. */ 2956 #define DECL_NONSTATIC_MEMBER_FUNCTION_P(NODE) \ 2957 (TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE) 2958 2959 /* Nonzero for FUNCTION_DECL means that this decl is a member function 2960 (static or non-static). */ 2961 #define DECL_FUNCTION_MEMBER_P(NODE) \ 2962 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) || DECL_STATIC_FUNCTION_P (NODE)) 2963 2964 /* Nonzero for FUNCTION_DECL means that this member function 2965 has `this' as const X *const. */ 2966 #define DECL_CONST_MEMFUNC_P(NODE) \ 2967 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \ 2968 && CP_TYPE_CONST_P (TREE_TYPE (TREE_VALUE \ 2969 (TYPE_ARG_TYPES (TREE_TYPE (NODE)))))) 2970 2971 /* Nonzero for FUNCTION_DECL means that this member function 2972 has `this' as volatile X *const. */ 2973 #define DECL_VOLATILE_MEMFUNC_P(NODE) \ 2974 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \ 2975 && CP_TYPE_VOLATILE_P (TREE_TYPE (TREE_VALUE \ 2976 (TYPE_ARG_TYPES (TREE_TYPE (NODE)))))) 2977 2978 /* Nonzero for a DECL means that this member is a non-static member. */ 2979 #define DECL_NONSTATIC_MEMBER_P(NODE) \ 2980 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \ 2981 || TREE_CODE (NODE) == FIELD_DECL) 2982 2983 /* Nonzero for _DECL means that this member object type 2984 is mutable. */ 2985 #define DECL_MUTABLE_P(NODE) (DECL_LANG_FLAG_0 (NODE)) 2986 2987 /* Nonzero for _DECL means that this constructor or conversion function is 2988 non-converting. */ 2989 #define DECL_NONCONVERTING_P(NODE) \ 2990 (LANG_DECL_FN_CHECK (NODE)->nonconverting) 2991 2992 /* Nonzero for FUNCTION_DECL means that this member function is a pure 2993 virtual function. */ 2994 #define DECL_PURE_VIRTUAL_P(NODE) \ 2995 (LANG_DECL_FN_CHECK (NODE)->pure_virtual) 2996 2997 /* True (in a FUNCTION_DECL) if NODE is a virtual function that is an 2998 invalid overrider for a function from a base class. Once we have 2999 complained about an invalid overrider we avoid complaining about it 3000 again. */ 3001 #define DECL_INVALID_OVERRIDER_P(NODE) \ 3002 (DECL_LANG_FLAG_4 (NODE)) 3003 3004 /* True (in a FUNCTION_DECL) if NODE is a function declared with 3005 an override virt-specifier */ 3006 #define DECL_OVERRIDE_P(NODE) (TREE_LANG_FLAG_0 (NODE)) 3007 3008 /* The thunks associated with NODE, a FUNCTION_DECL. */ 3009 #define DECL_THUNKS(NODE) \ 3010 (DECL_VIRTUAL_P (NODE) ? LANG_DECL_FN_CHECK (NODE)->context : NULL_TREE) 3011 3012 /* Set DECL_THUNKS. */ 3013 #define SET_DECL_THUNKS(NODE,THUNKS) \ 3014 (LANG_DECL_FN_CHECK (NODE)->context = (THUNKS)) 3015 3016 /* If NODE, a FUNCTION_DECL, is a C++11 inheriting constructor, then this 3017 is the constructor it inherits from. */ 3018 #define DECL_INHERITED_CTOR(NODE) \ 3019 (DECL_DECLARES_FUNCTION_P (NODE) && DECL_CONSTRUCTOR_P (NODE) \ 3020 ? LANG_DECL_FN_CHECK (NODE)->context : NULL_TREE) 3021 3022 /* And this is the base that constructor comes from. */ 3023 #define DECL_INHERITED_CTOR_BASE(NODE) \ 3024 (DECL_INHERITED_CTOR (NODE) \ 3025 ? DECL_CONTEXT (flag_new_inheriting_ctors \ 3026 ? strip_inheriting_ctors (NODE) \ 3027 : DECL_INHERITED_CTOR (NODE)) \ 3028 : NULL_TREE) 3029 3030 /* Set the inherited base. */ 3031 #define SET_DECL_INHERITED_CTOR(NODE,INH) \ 3032 (LANG_DECL_FN_CHECK (NODE)->context = (INH)) 3033 3034 /* Nonzero if NODE is a thunk, rather than an ordinary function. */ 3035 #define DECL_THUNK_P(NODE) \ 3036 (TREE_CODE (NODE) == FUNCTION_DECL \ 3037 && DECL_LANG_SPECIFIC (NODE) \ 3038 && LANG_DECL_FN_CHECK (NODE)->thunk_p) 3039 3040 /* Set DECL_THUNK_P for node. */ 3041 #define SET_DECL_THUNK_P(NODE, THIS_ADJUSTING) \ 3042 (LANG_DECL_FN_CHECK (NODE)->thunk_p = 1, \ 3043 LANG_DECL_FN_CHECK (NODE)->this_thunk_p = (THIS_ADJUSTING)) 3044 3045 /* Nonzero if NODE is a this pointer adjusting thunk. */ 3046 #define DECL_THIS_THUNK_P(NODE) \ 3047 (DECL_THUNK_P (NODE) && LANG_DECL_FN_CHECK (NODE)->this_thunk_p) 3048 3049 /* Nonzero if NODE is a result pointer adjusting thunk. */ 3050 #define DECL_RESULT_THUNK_P(NODE) \ 3051 (DECL_THUNK_P (NODE) && !LANG_DECL_FN_CHECK (NODE)->this_thunk_p) 3052 3053 /* Nonzero if NODE is a FUNCTION_DECL, but not a thunk. */ 3054 #define DECL_NON_THUNK_FUNCTION_P(NODE) \ 3055 (TREE_CODE (NODE) == FUNCTION_DECL && !DECL_THUNK_P (NODE)) 3056 3057 /* Nonzero if NODE is `extern "C"'. */ 3058 #define DECL_EXTERN_C_P(NODE) \ 3059 (DECL_LANGUAGE (NODE) == lang_c) 3060 3061 /* Nonzero if NODE is an `extern "C"' function. */ 3062 #define DECL_EXTERN_C_FUNCTION_P(NODE) \ 3063 (DECL_NON_THUNK_FUNCTION_P (NODE) && DECL_EXTERN_C_P (NODE)) 3064 3065 /* True iff DECL is an entity with vague linkage whose definition is 3066 available in this translation unit. */ 3067 #define DECL_REPO_AVAILABLE_P(NODE) \ 3068 (DECL_LANG_SPECIFIC (NODE)->u.base.repo_available_p) 3069 3070 /* True if DECL is declared 'constexpr'. */ 3071 #define DECL_DECLARED_CONSTEXPR_P(DECL) \ 3072 DECL_LANG_FLAG_8 (VAR_OR_FUNCTION_DECL_CHECK (STRIP_TEMPLATE (DECL))) 3073 3074 // True if NODE was declared as 'concept'. The flag implies that the 3075 // declaration is constexpr, that the declaration cannot be specialized or 3076 // refined, and that the result type must be convertible to bool. 3077 #define DECL_DECLARED_CONCEPT_P(NODE) \ 3078 (DECL_LANG_SPECIFIC (NODE)->u.base.concept_p) 3079 3080 /* Nonzero if this DECL is the __PRETTY_FUNCTION__ variable in a 3081 template function. */ 3082 #define DECL_PRETTY_FUNCTION_P(NODE) \ 3083 (DECL_NAME (NODE) \ 3084 && id_equal (DECL_NAME (NODE), "__PRETTY_FUNCTION__")) 3085 3086 /* Nonzero if the variable was declared to be thread-local. 3087 We need a special C++ version of this test because the middle-end 3088 DECL_THREAD_LOCAL_P uses the symtab, so we can't use it for 3089 templates. */ 3090 #define CP_DECL_THREAD_LOCAL_P(NODE) \ 3091 (TREE_LANG_FLAG_0 (VAR_DECL_CHECK (NODE))) 3092 3093 /* The _TYPE context in which this _DECL appears. This field holds the 3094 class where a virtual function instance is actually defined. */ 3095 #define DECL_CLASS_CONTEXT(NODE) \ 3096 (DECL_CLASS_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : NULL_TREE) 3097 3098 /* For a non-member friend function, the class (if any) in which this 3099 friend was defined. For example, given: 3100 3101 struct S { friend void f () { ... } }; 3102 3103 the DECL_FRIEND_CONTEXT for `f' will be `S'. */ 3104 #define DECL_FRIEND_CONTEXT(NODE) \ 3105 ((DECL_DECLARES_FUNCTION_P (NODE) \ 3106 && DECL_FRIEND_P (NODE) && !DECL_FUNCTION_MEMBER_P (NODE)) \ 3107 ? LANG_DECL_FN_CHECK (NODE)->context \ 3108 : NULL_TREE) 3109 3110 /* Set the DECL_FRIEND_CONTEXT for NODE to CONTEXT. */ 3111 #define SET_DECL_FRIEND_CONTEXT(NODE, CONTEXT) \ 3112 (LANG_DECL_FN_CHECK (NODE)->context = (CONTEXT)) 3113 3114 #define CP_DECL_CONTEXT(NODE) \ 3115 (!DECL_FILE_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : global_namespace) 3116 #define CP_TYPE_CONTEXT(NODE) \ 3117 (!TYPE_FILE_SCOPE_P (NODE) ? TYPE_CONTEXT (NODE) : global_namespace) 3118 #define FROB_CONTEXT(NODE) \ 3119 ((NODE) == global_namespace ? DECL_CONTEXT (NODE) : (NODE)) 3120 3121 /* 1 iff NODE has namespace scope, including the global namespace. */ 3122 #define DECL_NAMESPACE_SCOPE_P(NODE) \ 3123 (!DECL_TEMPLATE_PARM_P (NODE) \ 3124 && TREE_CODE (CP_DECL_CONTEXT (NODE)) == NAMESPACE_DECL) 3125 3126 #define TYPE_NAMESPACE_SCOPE_P(NODE) \ 3127 (TREE_CODE (CP_TYPE_CONTEXT (NODE)) == NAMESPACE_DECL) 3128 3129 #define NAMESPACE_SCOPE_P(NODE) \ 3130 ((DECL_P (NODE) && DECL_NAMESPACE_SCOPE_P (NODE)) \ 3131 || (TYPE_P (NODE) && TYPE_NAMESPACE_SCOPE_P (NODE))) 3132 3133 /* 1 iff NODE is a class member. */ 3134 #define DECL_CLASS_SCOPE_P(NODE) \ 3135 (DECL_CONTEXT (NODE) && TYPE_P (DECL_CONTEXT (NODE))) 3136 3137 #define TYPE_CLASS_SCOPE_P(NODE) \ 3138 (TYPE_CONTEXT (NODE) && TYPE_P (TYPE_CONTEXT (NODE))) 3139 3140 /* 1 iff NODE is function-local. */ 3141 #define DECL_FUNCTION_SCOPE_P(NODE) \ 3142 (DECL_CONTEXT (NODE) \ 3143 && TREE_CODE (DECL_CONTEXT (NODE)) == FUNCTION_DECL) 3144 3145 #define TYPE_FUNCTION_SCOPE_P(NODE) \ 3146 (TYPE_CONTEXT (NODE) && TREE_CODE (TYPE_CONTEXT (NODE)) == FUNCTION_DECL) 3147 3148 /* 1 iff VAR_DECL node NODE is a type-info decl. This flag is set for 3149 both the primary typeinfo object and the associated NTBS name. */ 3150 #define DECL_TINFO_P(NODE) TREE_LANG_FLAG_4 (VAR_DECL_CHECK (NODE)) 3151 3152 /* 1 iff VAR_DECL node NODE is virtual table or VTT. */ 3153 #define DECL_VTABLE_OR_VTT_P(NODE) TREE_LANG_FLAG_5 (VAR_DECL_CHECK (NODE)) 3154 3155 /* 1 iff FUNCTION_TYPE or METHOD_TYPE has a ref-qualifier (either & or &&). */ 3156 #define FUNCTION_REF_QUALIFIED(NODE) \ 3157 TREE_LANG_FLAG_4 (FUNC_OR_METHOD_CHECK (NODE)) 3158 3159 /* 1 iff FUNCTION_TYPE or METHOD_TYPE has &&-ref-qualifier. */ 3160 #define FUNCTION_RVALUE_QUALIFIED(NODE) \ 3161 TREE_LANG_FLAG_5 (FUNC_OR_METHOD_CHECK (NODE)) 3162 3163 /* Returns 1 iff VAR_DECL is a construction virtual table. 3164 DECL_VTABLE_OR_VTT_P will be true in this case and must be checked 3165 before using this macro. */ 3166 #define DECL_CONSTRUCTION_VTABLE_P(NODE) \ 3167 TREE_LANG_FLAG_6 (VAR_DECL_CHECK (NODE)) 3168 3169 /* 1 iff NODE is function-local, but for types. */ 3170 #define LOCAL_CLASS_P(NODE) \ 3171 (decl_function_context (TYPE_MAIN_DECL (NODE)) != NULL_TREE) 3172 3173 /* The nesting depth of namespace, class or function. Makes is_ancestor much 3174 simpler. Only 8 bits available. */ 3175 #define SCOPE_DEPTH(NODE) \ 3176 (NAMESPACE_DECL_CHECK (NODE)->base.u.bits.address_space) 3177 3178 /* Whether the namepace is an inline namespace. */ 3179 #define DECL_NAMESPACE_INLINE_P(NODE) \ 3180 TREE_LANG_FLAG_0 (NAMESPACE_DECL_CHECK (NODE)) 3181 3182 /* In a NAMESPACE_DECL, a vector of using directives. */ 3183 #define DECL_NAMESPACE_USING(NODE) \ 3184 (LANG_DECL_NS_CHECK (NODE)->usings) 3185 3186 /* In a NAMESPACE_DECL, a vector of inline namespaces. */ 3187 #define DECL_NAMESPACE_INLINEES(NODE) \ 3188 (LANG_DECL_NS_CHECK (NODE)->inlinees) 3189 3190 /* Pointer to hash_map from IDENTIFIERS to DECLS */ 3191 #define DECL_NAMESPACE_BINDINGS(NODE) \ 3192 (LANG_DECL_NS_CHECK (NODE)->bindings) 3193 3194 /* In a NAMESPACE_DECL, points to the original namespace if this is 3195 a namespace alias. */ 3196 #define DECL_NAMESPACE_ALIAS(NODE) \ 3197 DECL_ABSTRACT_ORIGIN (NAMESPACE_DECL_CHECK (NODE)) 3198 #define ORIGINAL_NAMESPACE(NODE) \ 3199 (DECL_NAMESPACE_ALIAS (NODE) ? DECL_NAMESPACE_ALIAS (NODE) : (NODE)) 3200 3201 /* Nonzero if NODE is the std namespace. */ 3202 #define DECL_NAMESPACE_STD_P(NODE) \ 3203 (TREE_CODE (NODE) == NAMESPACE_DECL \ 3204 && CP_DECL_CONTEXT (NODE) == global_namespace \ 3205 && DECL_NAME (NODE) == std_identifier) 3206 3207 /* In a TREE_LIST in an attribute list, indicates that the attribute 3208 must be applied at instantiation time. */ 3209 #define ATTR_IS_DEPENDENT(NODE) TREE_LANG_FLAG_0 (TREE_LIST_CHECK (NODE)) 3210 3211 /* In a TREE_LIST in the argument of attribute abi_tag, indicates that the tag 3212 was inherited from a template parameter, not explicitly indicated. */ 3213 #define ABI_TAG_IMPLICIT(NODE) TREE_LANG_FLAG_0 (TREE_LIST_CHECK (NODE)) 3214 3215 extern tree decl_shadowed_for_var_lookup (tree); 3216 extern void decl_shadowed_for_var_insert (tree, tree); 3217 3218 /* Non zero if this is a using decl for a dependent scope. */ 3219 #define DECL_DEPENDENT_P(NODE) DECL_LANG_FLAG_0 (USING_DECL_CHECK (NODE)) 3220 3221 /* The scope named in a using decl. */ 3222 #define USING_DECL_SCOPE(NODE) TREE_TYPE (USING_DECL_CHECK (NODE)) 3223 3224 /* The decls named by a using decl. */ 3225 #define USING_DECL_DECLS(NODE) DECL_INITIAL (USING_DECL_CHECK (NODE)) 3226 3227 /* Non zero if the using decl refers to a dependent type. */ 3228 #define USING_DECL_TYPENAME_P(NODE) DECL_LANG_FLAG_1 (USING_DECL_CHECK (NODE)) 3229 3230 /* In a VAR_DECL, true if we have a shadowed local variable 3231 in the shadowed var table for this VAR_DECL. */ 3232 #define DECL_HAS_SHADOWED_FOR_VAR_P(NODE) \ 3233 (VAR_DECL_CHECK (NODE)->decl_with_vis.shadowed_for_var_p) 3234 3235 /* In a VAR_DECL for a variable declared in a for statement, 3236 this is the shadowed (local) variable. */ 3237 #define DECL_SHADOWED_FOR_VAR(NODE) \ 3238 (DECL_HAS_SHADOWED_FOR_VAR_P(NODE) ? decl_shadowed_for_var_lookup (NODE) : NULL) 3239 3240 #define SET_DECL_SHADOWED_FOR_VAR(NODE, VAL) \ 3241 (decl_shadowed_for_var_insert (NODE, VAL)) 3242 3243 /* In a FUNCTION_DECL, this is nonzero if this function was defined in 3244 the class definition. We have saved away the text of the function, 3245 but have not yet processed it. */ 3246 #define DECL_PENDING_INLINE_P(NODE) \ 3247 (LANG_DECL_FN_CHECK (NODE)->pending_inline_p) 3248 3249 /* If DECL_PENDING_INLINE_P holds, this is the saved text of the 3250 function. */ 3251 #define DECL_PENDING_INLINE_INFO(NODE) \ 3252 (LANG_DECL_FN_CHECK (NODE)->u.pending_inline_info) 3253 3254 /* Nonzero for TYPE_DECL means that it was written 'using name = type'. */ 3255 #define TYPE_DECL_ALIAS_P(NODE) \ 3256 DECL_LANG_FLAG_6 (TYPE_DECL_CHECK (NODE)) 3257 3258 /* Nonzero for TEMPLATE_DECL means that it is a 'complex' alias template. */ 3259 #define TEMPLATE_DECL_COMPLEX_ALIAS_P(NODE) \ 3260 DECL_LANG_FLAG_2 (TEMPLATE_DECL_CHECK (NODE)) 3261 3262 /* Nonzero for a type which is an alias for another type; i.e, a type 3263 which declaration was written 'using name-of-type = 3264 another-type'. */ 3265 #define TYPE_ALIAS_P(NODE) \ 3266 (TYPE_P (NODE) \ 3267 && TYPE_NAME (NODE) \ 3268 && TREE_CODE (TYPE_NAME (NODE)) == TYPE_DECL \ 3269 && TYPE_DECL_ALIAS_P (TYPE_NAME (NODE))) 3270 3271 /* If non-NULL for a VAR_DECL, FUNCTION_DECL, TYPE_DECL or 3272 TEMPLATE_DECL, the entity is either a template specialization (if 3273 DECL_USE_TEMPLATE is nonzero) or the abstract instance of the 3274 template itself. 3275 3276 In either case, DECL_TEMPLATE_INFO is a TREE_LIST, whose 3277 TREE_PURPOSE is the TEMPLATE_DECL of which this entity is a 3278 specialization or abstract instance. The TREE_VALUE is the 3279 template arguments used to specialize the template. 3280 3281 Consider: 3282 3283 template <typename T> struct S { friend void f(T) {} }; 3284 3285 In this case, S<int>::f is, from the point of view of the compiler, 3286 an instantiation of a template -- but, from the point of view of 3287 the language, each instantiation of S results in a wholly unrelated 3288 global function f. In this case, DECL_TEMPLATE_INFO for S<int>::f 3289 will be non-NULL, but DECL_USE_TEMPLATE will be zero. */ 3290 #define DECL_TEMPLATE_INFO(NODE) \ 3291 (DECL_LANG_SPECIFIC (VAR_TEMPL_TYPE_FIELD_OR_FUNCTION_DECL_CHECK (NODE)) \ 3292 ->u.min.template_info) 3293 3294 /* For a lambda capture proxy, its captured variable. */ 3295 #define DECL_CAPTURED_VARIABLE(NODE) \ 3296 (LANG_DECL_U2_CHECK (NODE, 0)->access) 3297 3298 /* For a VAR_DECL, indicates that the variable is actually a 3299 non-static data member of anonymous union that has been promoted to 3300 variable status. */ 3301 #define DECL_ANON_UNION_VAR_P(NODE) \ 3302 (DECL_LANG_FLAG_4 (VAR_DECL_CHECK (NODE))) 3303 3304 /* Template information for a RECORD_TYPE or UNION_TYPE. */ 3305 #define CLASSTYPE_TEMPLATE_INFO(NODE) \ 3306 (TYPE_LANG_SLOT_1 (RECORD_OR_UNION_CHECK (NODE))) 3307 3308 /* Template information for a template template parameter. */ 3309 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO(NODE) \ 3310 (TYPE_LANG_SLOT_1 (BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK (NODE))) 3311 3312 /* Template information for an ENUMERAL_, RECORD_, UNION_TYPE, or 3313 BOUND_TEMPLATE_TEMPLATE_PARM type. This ignores any alias 3314 templateness of NODE. It'd be nice if this could unconditionally 3315 access the slot, rather than return NULL if given a 3316 non-templatable type. */ 3317 #define TYPE_TEMPLATE_INFO(NODE) \ 3318 (TREE_CODE (NODE) == ENUMERAL_TYPE \ 3319 || TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM \ 3320 || RECORD_OR_UNION_TYPE_P (NODE) \ 3321 ? TYPE_LANG_SLOT_1 (NODE) : NULL_TREE) 3322 3323 /* Template information (if any) for an alias type. */ 3324 #define TYPE_ALIAS_TEMPLATE_INFO(NODE) \ 3325 (DECL_LANG_SPECIFIC (TYPE_NAME (NODE)) \ 3326 ? DECL_TEMPLATE_INFO (TYPE_NAME (NODE)) \ 3327 : NULL_TREE) 3328 3329 /* If NODE is a type alias, this accessor returns the template info 3330 for the alias template (if any). Otherwise behave as 3331 TYPE_TEMPLATE_INFO. */ 3332 #define TYPE_TEMPLATE_INFO_MAYBE_ALIAS(NODE) \ 3333 (TYPE_ALIAS_P (NODE) \ 3334 ? TYPE_ALIAS_TEMPLATE_INFO (NODE) \ 3335 : TYPE_TEMPLATE_INFO (NODE)) 3336 3337 /* Set the template information for an ENUMERAL_, RECORD_, or 3338 UNION_TYPE to VAL. */ 3339 #define SET_TYPE_TEMPLATE_INFO(NODE, VAL) \ 3340 (TREE_CODE (NODE) == ENUMERAL_TYPE \ 3341 || (CLASS_TYPE_P (NODE) && !TYPE_ALIAS_P (NODE)) \ 3342 ? (TYPE_LANG_SLOT_1 (NODE) = (VAL)) \ 3343 : (DECL_TEMPLATE_INFO (TYPE_NAME (NODE)) = (VAL))) 3344 3345 #define TI_TEMPLATE(NODE) TREE_TYPE (TEMPLATE_INFO_CHECK (NODE)) 3346 #define TI_ARGS(NODE) TREE_CHAIN (TEMPLATE_INFO_CHECK (NODE)) 3347 #define TI_PENDING_TEMPLATE_FLAG(NODE) TREE_LANG_FLAG_1 (NODE) 3348 /* For a given TREE_VEC containing a template argument list, 3349 this property contains the number of arguments that are not 3350 defaulted. */ 3351 #define NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) TREE_CHAIN (TREE_VEC_CHECK (NODE)) 3352 /* Below are the setter and getter of the NON_DEFAULT_TEMPLATE_ARGS_COUNT 3353 property. */ 3354 #define SET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE, INT_VALUE) \ 3355 NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) = build_int_cst (NULL_TREE, INT_VALUE) 3356 #if CHECKING_P 3357 #define GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) \ 3358 int_cst_value (NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE)) 3359 #else 3360 #define GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) \ 3361 NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE) \ 3362 ? int_cst_value (NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE)) \ 3363 : TREE_VEC_LENGTH (INNERMOST_TEMPLATE_ARGS (NODE)) 3364 #endif 3365 /* The list of typedefs - used in the template - that need 3366 access checking at template instantiation time. 3367 3368 FIXME this should be associated with the TEMPLATE_DECL, not the 3369 TEMPLATE_INFO. */ 3370 #define TI_TYPEDEFS_NEEDING_ACCESS_CHECKING(NODE) \ 3371 ((struct tree_template_info*)TEMPLATE_INFO_CHECK \ 3372 (NODE))->typedefs_needing_access_checking 3373 3374 /* We use TREE_VECs to hold template arguments. If there is only one 3375 level of template arguments, then the TREE_VEC contains the 3376 arguments directly. If there is more than one level of template 3377 arguments, then each entry in the TREE_VEC is itself a TREE_VEC, 3378 containing the template arguments for a single level. The first 3379 entry in the outer TREE_VEC is the outermost level of template 3380 parameters; the last is the innermost. 3381 3382 It is incorrect to ever form a template argument vector containing 3383 only one level of arguments, but which is a TREE_VEC containing as 3384 its only entry the TREE_VEC for that level. 3385 3386 For each TREE_VEC containing the template arguments for a single 3387 level, it's possible to get or set the number of non defaulted 3388 template arguments by using the accessor macros 3389 GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT or 3390 SET_NON_DEFAULT_TEMPLATE_ARGS_COUNT. */ 3391 3392 /* Nonzero if the template arguments is actually a vector of vectors, 3393 rather than just a vector. */ 3394 #define TMPL_ARGS_HAVE_MULTIPLE_LEVELS(NODE) \ 3395 (NODE && TREE_VEC_LENGTH (NODE) && TREE_VEC_ELT (NODE, 0) \ 3396 && TREE_CODE (TREE_VEC_ELT (NODE, 0)) == TREE_VEC) 3397 3398 /* The depth of a template argument vector. When called directly by 3399 the parser, we use a TREE_LIST rather than a TREE_VEC to represent 3400 template arguments. In fact, we may even see NULL_TREE if there 3401 are no template arguments. In both of those cases, there is only 3402 one level of template arguments. */ 3403 #define TMPL_ARGS_DEPTH(NODE) \ 3404 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (NODE) ? TREE_VEC_LENGTH (NODE) : 1) 3405 3406 /* The LEVELth level of the template ARGS. The outermost level of 3407 args is level 1, not level 0. */ 3408 #define TMPL_ARGS_LEVEL(ARGS, LEVEL) \ 3409 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (ARGS) \ 3410 ? TREE_VEC_ELT (ARGS, (LEVEL) - 1) : (ARGS)) 3411 3412 /* Set the LEVELth level of the template ARGS to VAL. This macro does 3413 not work with single-level argument vectors. */ 3414 #define SET_TMPL_ARGS_LEVEL(ARGS, LEVEL, VAL) \ 3415 (TREE_VEC_ELT (ARGS, (LEVEL) - 1) = (VAL)) 3416 3417 /* Accesses the IDXth parameter in the LEVELth level of the ARGS. */ 3418 #define TMPL_ARG(ARGS, LEVEL, IDX) \ 3419 (TREE_VEC_ELT (TMPL_ARGS_LEVEL (ARGS, LEVEL), IDX)) 3420 3421 /* Given a single level of template arguments in NODE, return the 3422 number of arguments. */ 3423 #define NUM_TMPL_ARGS(NODE) \ 3424 (TREE_VEC_LENGTH (NODE)) 3425 3426 /* Returns the innermost level of template arguments in ARGS. */ 3427 #define INNERMOST_TEMPLATE_ARGS(NODE) \ 3428 (get_innermost_template_args ((NODE), 1)) 3429 3430 /* The number of levels of template parameters given by NODE. */ 3431 #define TMPL_PARMS_DEPTH(NODE) \ 3432 ((HOST_WIDE_INT) TREE_INT_CST_LOW (TREE_PURPOSE (NODE))) 3433 3434 /* The TEMPLATE_DECL instantiated or specialized by NODE. This 3435 TEMPLATE_DECL will be the immediate parent, not the most general 3436 template. For example, in: 3437 3438 template <class T> struct S { template <class U> void f(U); } 3439 3440 the FUNCTION_DECL for S<int>::f<double> will have, as its 3441 DECL_TI_TEMPLATE, `template <class U> S<int>::f<U>'. 3442 3443 As a special case, for a member friend template of a template 3444 class, this value will not be a TEMPLATE_DECL, but rather an 3445 IDENTIFIER_NODE or OVERLOAD indicating the name of the template and 3446 any explicit template arguments provided. For example, in: 3447 3448 template <class T> struct S { friend void f<int>(int, double); } 3449 3450 the DECL_TI_TEMPLATE will be an IDENTIFIER_NODE for `f' and the 3451 DECL_TI_ARGS will be {int}. 3452 3453 For a FIELD_DECL with a non-static data member initializer, this value 3454 is the FIELD_DECL it was instantiated from. */ 3455 #define DECL_TI_TEMPLATE(NODE) TI_TEMPLATE (DECL_TEMPLATE_INFO (NODE)) 3456 3457 /* The template arguments used to obtain this decl from the most 3458 general form of DECL_TI_TEMPLATE. For the example given for 3459 DECL_TI_TEMPLATE, the DECL_TI_ARGS will be {int, double}. These 3460 are always the full set of arguments required to instantiate this 3461 declaration from the most general template specialized here. */ 3462 #define DECL_TI_ARGS(NODE) TI_ARGS (DECL_TEMPLATE_INFO (NODE)) 3463 3464 /* The TEMPLATE_DECL associated with NODE, a class type. Even if NODE 3465 will be generated from a partial specialization, the TEMPLATE_DECL 3466 referred to here will be the original template. For example, 3467 given: 3468 3469 template <typename T> struct S {}; 3470 template <typename T> struct S<T*> {}; 3471 3472 the CLASSTPYE_TI_TEMPLATE for S<int*> will be S, not the S<T*>. */ 3473 #define CLASSTYPE_TI_TEMPLATE(NODE) TI_TEMPLATE (CLASSTYPE_TEMPLATE_INFO (NODE)) 3474 #define CLASSTYPE_TI_ARGS(NODE) TI_ARGS (CLASSTYPE_TEMPLATE_INFO (NODE)) 3475 3476 /* For a template instantiation TYPE, returns the TYPE corresponding 3477 to the primary template. Otherwise returns TYPE itself. */ 3478 #define CLASSTYPE_PRIMARY_TEMPLATE_TYPE(TYPE) \ 3479 ((CLASSTYPE_USE_TEMPLATE ((TYPE)) \ 3480 && !CLASSTYPE_TEMPLATE_SPECIALIZATION ((TYPE))) \ 3481 ? TREE_TYPE (DECL_TEMPLATE_RESULT (DECL_PRIMARY_TEMPLATE \ 3482 (CLASSTYPE_TI_TEMPLATE ((TYPE))))) \ 3483 : (TYPE)) 3484 3485 /* Like CLASS_TI_TEMPLATE, but also works for ENUMERAL_TYPEs. */ 3486 #define TYPE_TI_TEMPLATE(NODE) \ 3487 (TI_TEMPLATE (TYPE_TEMPLATE_INFO (NODE))) 3488 3489 /* Like DECL_TI_ARGS, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */ 3490 #define TYPE_TI_ARGS(NODE) \ 3491 (TI_ARGS (TYPE_TEMPLATE_INFO (NODE))) 3492 3493 #define INNERMOST_TEMPLATE_PARMS(NODE) TREE_VALUE (NODE) 3494 3495 /* Nonzero if NODE (a TEMPLATE_DECL) is a member template, in the 3496 sense of [temp.mem]. */ 3497 #define DECL_MEMBER_TEMPLATE_P(NODE) \ 3498 (DECL_LANG_FLAG_1 (TEMPLATE_DECL_CHECK (NODE))) 3499 3500 /* Nonzero if the NODE corresponds to the template parameters for a 3501 member template, whose inline definition is being processed after 3502 the class definition is complete. */ 3503 #define TEMPLATE_PARMS_FOR_INLINE(NODE) TREE_LANG_FLAG_1 (NODE) 3504 3505 /* Determine if a declaration (PARM_DECL or FIELD_DECL) is a pack. */ 3506 #define DECL_PACK_P(NODE) \ 3507 (DECL_P (NODE) && PACK_EXPANSION_P (TREE_TYPE (NODE))) 3508 3509 /* Determines if NODE is an expansion of one or more parameter packs, 3510 e.g., a TYPE_PACK_EXPANSION or EXPR_PACK_EXPANSION. */ 3511 #define PACK_EXPANSION_P(NODE) \ 3512 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION \ 3513 || TREE_CODE (NODE) == EXPR_PACK_EXPANSION) 3514 3515 /* Extracts the type or expression pattern from a TYPE_PACK_EXPANSION or 3516 EXPR_PACK_EXPANSION. */ 3517 #define PACK_EXPANSION_PATTERN(NODE) \ 3518 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION ? TREE_TYPE (NODE) \ 3519 : TREE_OPERAND (NODE, 0)) 3520 3521 /* Sets the type or expression pattern for a TYPE_PACK_EXPANSION or 3522 EXPR_PACK_EXPANSION. */ 3523 #define SET_PACK_EXPANSION_PATTERN(NODE,VALUE) \ 3524 if (TREE_CODE (NODE) == TYPE_PACK_EXPANSION) \ 3525 TREE_TYPE (NODE) = VALUE; \ 3526 else \ 3527 TREE_OPERAND (NODE, 0) = VALUE 3528 3529 /* The list of parameter packs used in the PACK_EXPANSION_* node. The 3530 TREE_VALUE of each TREE_LIST contains the parameter packs. */ 3531 #define PACK_EXPANSION_PARAMETER_PACKS(NODE) \ 3532 *(TREE_CODE (NODE) == EXPR_PACK_EXPANSION \ 3533 ? &TREE_OPERAND (NODE, 1) \ 3534 : &TYPE_MIN_VALUE_RAW (TYPE_PACK_EXPANSION_CHECK (NODE))) 3535 3536 /* Any additional template args to be applied when substituting into 3537 the pattern, set by tsubst_pack_expansion for partial instantiations. 3538 If this is a TREE_LIST, the TREE_VALUE of the first element is the 3539 usual template argument TREE_VEC, and the TREE_PURPOSE of later elements 3540 are enclosing functions that provided function parameter packs we'll need 3541 to map appropriately. */ 3542 #define PACK_EXPANSION_EXTRA_ARGS(NODE) \ 3543 *(TREE_CODE (NODE) == TYPE_PACK_EXPANSION \ 3544 ? &TYPE_MAX_VALUE_RAW (NODE) \ 3545 : &TREE_OPERAND ((NODE), 2)) 3546 3547 /* True iff this pack expansion is within a function context. */ 3548 #define PACK_EXPANSION_LOCAL_P(NODE) TREE_LANG_FLAG_0 (NODE) 3549 3550 /* True iff this pack expansion is for sizeof.... */ 3551 #define PACK_EXPANSION_SIZEOF_P(NODE) TREE_LANG_FLAG_1 (NODE) 3552 3553 /* True iff the wildcard can match a template parameter pack. */ 3554 #define WILDCARD_PACK_P(NODE) TREE_LANG_FLAG_0 (NODE) 3555 3556 /* Determine if this is an argument pack. */ 3557 #define ARGUMENT_PACK_P(NODE) \ 3558 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK \ 3559 || TREE_CODE (NODE) == NONTYPE_ARGUMENT_PACK) 3560 3561 /* The arguments stored in an argument pack. Arguments are stored in a 3562 TREE_VEC, which may have length zero. */ 3563 #define ARGUMENT_PACK_ARGS(NODE) \ 3564 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK? TREE_TYPE (NODE) \ 3565 : TREE_OPERAND (NODE, 0)) 3566 3567 /* Set the arguments stored in an argument pack. VALUE must be a 3568 TREE_VEC. */ 3569 #define SET_ARGUMENT_PACK_ARGS(NODE,VALUE) \ 3570 if (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK) \ 3571 TREE_TYPE (NODE) = VALUE; \ 3572 else \ 3573 TREE_OPERAND (NODE, 0) = VALUE 3574 3575 /* Whether the argument pack is "incomplete", meaning that more 3576 arguments can still be deduced. Incomplete argument packs are only 3577 used when the user has provided an explicit template argument list 3578 for a variadic function template. Some of the explicit template 3579 arguments will be placed into the beginning of the argument pack, 3580 but additional arguments might still be deduced. */ 3581 #define ARGUMENT_PACK_INCOMPLETE_P(NODE) \ 3582 TREE_ADDRESSABLE (ARGUMENT_PACK_ARGS (NODE)) 3583 3584 /* When ARGUMENT_PACK_INCOMPLETE_P, stores the explicit template 3585 arguments used to fill this pack. */ 3586 #define ARGUMENT_PACK_EXPLICIT_ARGS(NODE) \ 3587 TREE_TYPE (ARGUMENT_PACK_ARGS (NODE)) 3588 3589 /* In an ARGUMENT_PACK_SELECT, the argument pack from which an 3590 argument will be selected. */ 3591 #define ARGUMENT_PACK_SELECT_FROM_PACK(NODE) \ 3592 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->argument_pack) 3593 3594 /* In an ARGUMENT_PACK_SELECT, the index of the argument we want to 3595 select. */ 3596 #define ARGUMENT_PACK_SELECT_INDEX(NODE) \ 3597 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->index) 3598 3599 #define FOLD_EXPR_CHECK(NODE) \ 3600 TREE_CHECK4 (NODE, UNARY_LEFT_FOLD_EXPR, UNARY_RIGHT_FOLD_EXPR, \ 3601 BINARY_LEFT_FOLD_EXPR, BINARY_RIGHT_FOLD_EXPR) 3602 3603 #define BINARY_FOLD_EXPR_CHECK(NODE) \ 3604 TREE_CHECK2 (NODE, BINARY_LEFT_FOLD_EXPR, BINARY_RIGHT_FOLD_EXPR) 3605 3606 /* True if NODE is UNARY_FOLD_EXPR or a BINARY_FOLD_EXPR */ 3607 #define FOLD_EXPR_P(NODE) \ 3608 (TREE_CODE (NODE) == UNARY_LEFT_FOLD_EXPR \ 3609 || TREE_CODE (NODE) == UNARY_RIGHT_FOLD_EXPR \ 3610 || TREE_CODE (NODE) == BINARY_LEFT_FOLD_EXPR \ 3611 || TREE_CODE (NODE) == BINARY_RIGHT_FOLD_EXPR) 3612 3613 /* True when NODE is a fold over a compound assignment operator. */ 3614 #define FOLD_EXPR_MODIFY_P(NODE) \ 3615 TREE_LANG_FLAG_0 (FOLD_EXPR_CHECK (NODE)) 3616 3617 /* An INTEGER_CST containing the tree code of the folded operator. */ 3618 #define FOLD_EXPR_OP(NODE) \ 3619 TREE_OPERAND (FOLD_EXPR_CHECK (NODE), 0) 3620 3621 /* The expression containing an unexpanded parameter pack. */ 3622 #define FOLD_EXPR_PACK(NODE) \ 3623 TREE_OPERAND (FOLD_EXPR_CHECK (NODE), 1) 3624 3625 /* In a binary fold expression, the argument with no unexpanded 3626 parameter packs. */ 3627 #define FOLD_EXPR_INIT(NODE) \ 3628 TREE_OPERAND (BINARY_FOLD_EXPR_CHECK (NODE), 2) 3629 3630 /* In a FUNCTION_DECL, the saved language-specific per-function data. */ 3631 #define DECL_SAVED_FUNCTION_DATA(NODE) \ 3632 (LANG_DECL_FN_CHECK (FUNCTION_DECL_CHECK (NODE)) \ 3633 ->u.saved_language_function) 3634 3635 /* True if NODE is an implicit INDIRECT_EXPR from convert_from_reference. */ 3636 #define REFERENCE_REF_P(NODE) \ 3637 (INDIRECT_REF_P (NODE) \ 3638 && TREE_TYPE (TREE_OPERAND (NODE, 0)) \ 3639 && (TREE_CODE (TREE_TYPE (TREE_OPERAND ((NODE), 0))) \ 3640 == REFERENCE_TYPE)) 3641 3642 /* True if NODE is a REFERENCE_TYPE which is OK to instantiate to be a 3643 reference to VLA type, because it's used for VLA capture. */ 3644 #define REFERENCE_VLA_OK(NODE) \ 3645 (TYPE_LANG_FLAG_5 (REFERENCE_TYPE_CHECK (NODE))) 3646 3647 #define NEW_EXPR_USE_GLOBAL(NODE) \ 3648 TREE_LANG_FLAG_0 (NEW_EXPR_CHECK (NODE)) 3649 #define DELETE_EXPR_USE_GLOBAL(NODE) \ 3650 TREE_LANG_FLAG_0 (DELETE_EXPR_CHECK (NODE)) 3651 #define DELETE_EXPR_USE_VEC(NODE) \ 3652 TREE_LANG_FLAG_1 (DELETE_EXPR_CHECK (NODE)) 3653 3654 #define CALL_OR_AGGR_INIT_CHECK(NODE) \ 3655 TREE_CHECK2 ((NODE), CALL_EXPR, AGGR_INIT_EXPR) 3656 3657 /* Indicates that this is a non-dependent COMPOUND_EXPR which will 3658 resolve to a function call. */ 3659 #define COMPOUND_EXPR_OVERLOADED(NODE) \ 3660 TREE_LANG_FLAG_0 (COMPOUND_EXPR_CHECK (NODE)) 3661 3662 /* In a CALL_EXPR appearing in a template, true if Koenig lookup 3663 should be performed at instantiation time. */ 3664 #define KOENIG_LOOKUP_P(NODE) TREE_LANG_FLAG_0 (CALL_EXPR_CHECK (NODE)) 3665 3666 /* True if the arguments to NODE should be evaluated in left-to-right 3667 order regardless of PUSH_ARGS_REVERSED. */ 3668 #define CALL_EXPR_ORDERED_ARGS(NODE) \ 3669 TREE_LANG_FLAG_3 (CALL_OR_AGGR_INIT_CHECK (NODE)) 3670 3671 /* True if the arguments to NODE should be evaluated in right-to-left 3672 order regardless of PUSH_ARGS_REVERSED. */ 3673 #define CALL_EXPR_REVERSE_ARGS(NODE) \ 3674 TREE_LANG_FLAG_5 (CALL_OR_AGGR_INIT_CHECK (NODE)) 3675 3676 /* True if CALL_EXPR was written as an operator expression, not a function 3677 call. */ 3678 #define CALL_EXPR_OPERATOR_SYNTAX(NODE) \ 3679 TREE_LANG_FLAG_6 (CALL_OR_AGGR_INIT_CHECK (NODE)) 3680 3681 /* Indicates whether a string literal has been parenthesized. Such 3682 usages are disallowed in certain circumstances. */ 3683 3684 #define PAREN_STRING_LITERAL_P(NODE) \ 3685 TREE_LANG_FLAG_0 (STRING_CST_CHECK (NODE)) 3686 3687 /* Indicates whether a COMPONENT_REF or a SCOPE_REF has been parenthesized, or 3688 an INDIRECT_REF comes from parenthesizing a _DECL. Currently only set some 3689 of the time in C++14 mode. */ 3690 3691 #define REF_PARENTHESIZED_P(NODE) \ 3692 TREE_LANG_FLAG_2 (TREE_CHECK3 ((NODE), COMPONENT_REF, INDIRECT_REF, SCOPE_REF)) 3693 3694 /* Nonzero if this AGGR_INIT_EXPR provides for initialization via a 3695 constructor call, rather than an ordinary function call. */ 3696 #define AGGR_INIT_VIA_CTOR_P(NODE) \ 3697 TREE_LANG_FLAG_0 (AGGR_INIT_EXPR_CHECK (NODE)) 3698 3699 /* Nonzero if expanding this AGGR_INIT_EXPR should first zero-initialize 3700 the object. */ 3701 #define AGGR_INIT_ZERO_FIRST(NODE) \ 3702 TREE_LANG_FLAG_2 (AGGR_INIT_EXPR_CHECK (NODE)) 3703 3704 /* Nonzero means that the call is the jump from a thunk to the 3705 thunked-to function. */ 3706 #define AGGR_INIT_FROM_THUNK_P(NODE) \ 3707 (AGGR_INIT_EXPR_CHECK (NODE)->base.protected_flag) 3708 3709 /* AGGR_INIT_EXPR accessors. These are equivalent to the CALL_EXPR 3710 accessors, except for AGGR_INIT_EXPR_SLOT (which takes the place of 3711 CALL_EXPR_STATIC_CHAIN). */ 3712 3713 #define AGGR_INIT_EXPR_FN(NODE) TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 1) 3714 #define AGGR_INIT_EXPR_SLOT(NODE) \ 3715 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 2) 3716 #define AGGR_INIT_EXPR_ARG(NODE, I) \ 3717 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), (I) + 3) 3718 #define aggr_init_expr_nargs(NODE) (VL_EXP_OPERAND_LENGTH(NODE) - 3) 3719 3720 /* AGGR_INIT_EXPR_ARGP returns a pointer to the argument vector for NODE. 3721 We can't use &AGGR_INIT_EXPR_ARG (NODE, 0) because that will complain if 3722 the argument count is zero when checking is enabled. Instead, do 3723 the pointer arithmetic to advance past the 3 fixed operands in a 3724 AGGR_INIT_EXPR. That produces a valid pointer to just past the end of 3725 the operand array, even if it's not valid to dereference it. */ 3726 #define AGGR_INIT_EXPR_ARGP(NODE) \ 3727 (&(TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 0)) + 3) 3728 3729 /* Abstract iterators for AGGR_INIT_EXPRs. */ 3730 3731 /* Structure containing iterator state. */ 3732 struct aggr_init_expr_arg_iterator { 3733 tree t; /* the aggr_init_expr */ 3734 int n; /* argument count */ 3735 int i; /* next argument index */ 3736 }; 3737 3738 /* Initialize the abstract argument list iterator object ITER with the 3739 arguments from AGGR_INIT_EXPR node EXP. */ 3740 inline void 3741 init_aggr_init_expr_arg_iterator (tree exp, 3742 aggr_init_expr_arg_iterator *iter) 3743 { 3744 iter->t = exp; 3745 iter->n = aggr_init_expr_nargs (exp); 3746 iter->i = 0; 3747 } 3748 3749 /* Return the next argument from abstract argument list iterator object ITER, 3750 and advance its state. Return NULL_TREE if there are no more arguments. */ 3751 inline tree 3752 next_aggr_init_expr_arg (aggr_init_expr_arg_iterator *iter) 3753 { 3754 tree result; 3755 if (iter->i >= iter->n) 3756 return NULL_TREE; 3757 result = AGGR_INIT_EXPR_ARG (iter->t, iter->i); 3758 iter->i++; 3759 return result; 3760 } 3761 3762 /* Initialize the abstract argument list iterator object ITER, then advance 3763 past and return the first argument. Useful in for expressions, e.g. 3764 for (arg = first_aggr_init_expr_arg (exp, &iter); arg; 3765 arg = next_aggr_init_expr_arg (&iter)) */ 3766 inline tree 3767 first_aggr_init_expr_arg (tree exp, aggr_init_expr_arg_iterator *iter) 3768 { 3769 init_aggr_init_expr_arg_iterator (exp, iter); 3770 return next_aggr_init_expr_arg (iter); 3771 } 3772 3773 /* Test whether there are more arguments in abstract argument list iterator 3774 ITER, without changing its state. */ 3775 inline bool 3776 more_aggr_init_expr_args_p (const aggr_init_expr_arg_iterator *iter) 3777 { 3778 return (iter->i < iter->n); 3779 } 3780 3781 /* Iterate through each argument ARG of AGGR_INIT_EXPR CALL, using variable 3782 ITER (of type aggr_init_expr_arg_iterator) to hold the iteration state. */ 3783 #define FOR_EACH_AGGR_INIT_EXPR_ARG(arg, iter, call) \ 3784 for ((arg) = first_aggr_init_expr_arg ((call), &(iter)); (arg); \ 3785 (arg) = next_aggr_init_expr_arg (&(iter))) 3786 3787 /* VEC_INIT_EXPR accessors. */ 3788 #define VEC_INIT_EXPR_SLOT(NODE) TREE_OPERAND (VEC_INIT_EXPR_CHECK (NODE), 0) 3789 #define VEC_INIT_EXPR_INIT(NODE) TREE_OPERAND (VEC_INIT_EXPR_CHECK (NODE), 1) 3790 3791 /* Indicates that a VEC_INIT_EXPR is a potential constant expression. 3792 Only set when the current function is constexpr. */ 3793 #define VEC_INIT_EXPR_IS_CONSTEXPR(NODE) \ 3794 TREE_LANG_FLAG_0 (VEC_INIT_EXPR_CHECK (NODE)) 3795 3796 /* Indicates that a VEC_INIT_EXPR is expressing value-initialization. */ 3797 #define VEC_INIT_EXPR_VALUE_INIT(NODE) \ 3798 TREE_LANG_FLAG_1 (VEC_INIT_EXPR_CHECK (NODE)) 3799 3800 /* The condition under which this MUST_NOT_THROW_EXPR actually blocks 3801 exceptions. NULL_TREE means 'true'. */ 3802 #define MUST_NOT_THROW_COND(NODE) \ 3803 TREE_OPERAND (MUST_NOT_THROW_EXPR_CHECK (NODE), 1) 3804 3805 /* The TYPE_MAIN_DECL for a class template type is a TYPE_DECL, not a 3806 TEMPLATE_DECL. This macro determines whether or not a given class 3807 type is really a template type, as opposed to an instantiation or 3808 specialization of one. */ 3809 #define CLASSTYPE_IS_TEMPLATE(NODE) \ 3810 (CLASSTYPE_TEMPLATE_INFO (NODE) \ 3811 && !CLASSTYPE_USE_TEMPLATE (NODE) \ 3812 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE))) 3813 3814 /* The name used by the user to name the typename type. Typically, 3815 this is an IDENTIFIER_NODE, and the same as the DECL_NAME on the 3816 corresponding TYPE_DECL. However, this may also be a 3817 TEMPLATE_ID_EXPR if we had something like `typename X::Y<T>'. */ 3818 #define TYPENAME_TYPE_FULLNAME(NODE) \ 3819 (TYPE_VALUES_RAW (TYPENAME_TYPE_CHECK (NODE))) 3820 3821 /* True if a TYPENAME_TYPE was declared as an "enum". */ 3822 #define TYPENAME_IS_ENUM_P(NODE) \ 3823 (TREE_LANG_FLAG_0 (TYPENAME_TYPE_CHECK (NODE))) 3824 3825 /* True if a TYPENAME_TYPE was declared as a "class", "struct", or 3826 "union". */ 3827 #define TYPENAME_IS_CLASS_P(NODE) \ 3828 (TREE_LANG_FLAG_1 (TYPENAME_TYPE_CHECK (NODE))) 3829 3830 /* True if a TYPENAME_TYPE is in the process of being resolved. */ 3831 #define TYPENAME_IS_RESOLVING_P(NODE) \ 3832 (TREE_LANG_FLAG_2 (TYPENAME_TYPE_CHECK (NODE))) 3833 3834 /* [class.virtual] 3835 3836 A class that declares or inherits a virtual function is called a 3837 polymorphic class. */ 3838 #define TYPE_POLYMORPHIC_P(NODE) (TREE_LANG_FLAG_2 (NODE)) 3839 3840 /* Nonzero if this class has a virtual function table pointer. */ 3841 #define TYPE_CONTAINS_VPTR_P(NODE) \ 3842 (TYPE_POLYMORPHIC_P (NODE) || CLASSTYPE_VBASECLASSES (NODE)) 3843 3844 /* This flag is true of a local VAR_DECL if it was declared in a for 3845 statement, but we are no longer in the scope of the for. */ 3846 #define DECL_DEAD_FOR_LOCAL(NODE) DECL_LANG_FLAG_7 (VAR_DECL_CHECK (NODE)) 3847 3848 /* This flag is set on a VAR_DECL that is a DECL_DEAD_FOR_LOCAL 3849 if we already emitted a warning about using it. */ 3850 #define DECL_ERROR_REPORTED(NODE) DECL_LANG_FLAG_0 (VAR_DECL_CHECK (NODE)) 3851 3852 /* Nonzero if NODE is a FUNCTION_DECL (for a function with global 3853 scope) declared in a local scope. */ 3854 #define DECL_LOCAL_FUNCTION_P(NODE) \ 3855 DECL_LANG_FLAG_0 (FUNCTION_DECL_CHECK (NODE)) 3856 3857 /* Nonzero if NODE is the target for genericization of 'break' stmts. */ 3858 #define LABEL_DECL_BREAK(NODE) \ 3859 DECL_LANG_FLAG_0 (LABEL_DECL_CHECK (NODE)) 3860 3861 /* Nonzero if NODE is the target for genericization of 'continue' stmts. */ 3862 #define LABEL_DECL_CONTINUE(NODE) \ 3863 DECL_LANG_FLAG_1 (LABEL_DECL_CHECK (NODE)) 3864 3865 /* Nonzero if NODE is the target for genericization of 'return' stmts 3866 in constructors/destructors of targetm.cxx.cdtor_returns_this targets. */ 3867 #define LABEL_DECL_CDTOR(NODE) \ 3868 DECL_LANG_FLAG_2 (LABEL_DECL_CHECK (NODE)) 3869 3870 /* True if NODE was declared with auto in its return type, but it has 3871 started compilation and so the return type might have been changed by 3872 return type deduction; its declared return type should be found in 3873 DECL_STRUCT_FUNCTION(NODE)->language->x_auto_return_pattern. */ 3874 #define FNDECL_USED_AUTO(NODE) \ 3875 TREE_LANG_FLAG_2 (FUNCTION_DECL_CHECK (NODE)) 3876 3877 /* Nonzero if NODE is a DECL which we know about but which has not 3878 been explicitly declared, such as a built-in function or a friend 3879 declared inside a class. In the latter case DECL_HIDDEN_FRIEND_P 3880 will be set. */ 3881 #define DECL_ANTICIPATED(NODE) \ 3882 (DECL_LANG_SPECIFIC (TYPE_FUNCTION_OR_TEMPLATE_DECL_CHECK (NODE)) \ 3883 ->u.base.anticipated_p) 3884 3885 /* Is DECL NODE a hidden name? */ 3886 #define DECL_HIDDEN_P(NODE) \ 3887 (DECL_LANG_SPECIFIC (NODE) && TYPE_FUNCTION_OR_TEMPLATE_DECL_P (NODE) \ 3888 && DECL_ANTICIPATED (NODE)) 3889 3890 /* True if this is a hidden class type. */ 3891 #define TYPE_HIDDEN_P(NODE) \ 3892 (DECL_LANG_SPECIFIC (TYPE_NAME (NODE)) \ 3893 && DECL_ANTICIPATED (TYPE_NAME (NODE))) 3894 3895 /* True for artificial decls added for OpenMP privatized non-static 3896 data members. */ 3897 #define DECL_OMP_PRIVATIZED_MEMBER(NODE) \ 3898 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))->u.base.anticipated_p) 3899 3900 /* Nonzero if NODE is a FUNCTION_DECL which was declared as a friend 3901 within a class but has not been declared in the surrounding scope. 3902 The function is invisible except via argument dependent lookup. */ 3903 #define DECL_HIDDEN_FRIEND_P(NODE) \ 3904 (LANG_DECL_FN_CHECK (DECL_COMMON_CHECK (NODE))->hidden_friend_p) 3905 3906 /* Nonzero if NODE is an artificial FUNCTION_DECL for 3907 #pragma omp declare reduction. */ 3908 #define DECL_OMP_DECLARE_REDUCTION_P(NODE) \ 3909 (LANG_DECL_FN_CHECK (DECL_COMMON_CHECK (NODE))->omp_declare_reduction_p) 3910 3911 /* Nonzero if DECL has been declared threadprivate by 3912 #pragma omp threadprivate. */ 3913 #define CP_DECL_THREADPRIVATE_P(DECL) \ 3914 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (DECL))->u.base.threadprivate_or_deleted_p) 3915 3916 /* Nonzero if NODE is a VAR_DECL which has been declared inline. */ 3917 #define DECL_VAR_DECLARED_INLINE_P(NODE) \ 3918 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE)) \ 3919 ? DECL_LANG_SPECIFIC (NODE)->u.base.var_declared_inline_p \ 3920 : false) 3921 #define SET_DECL_VAR_DECLARED_INLINE_P(NODE) \ 3922 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))->u.base.var_declared_inline_p \ 3923 = true) 3924 3925 /* True if NODE is a constant variable with a value-dependent initializer. */ 3926 #define DECL_DEPENDENT_INIT_P(NODE) \ 3927 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE)) \ 3928 && DECL_LANG_SPECIFIC (NODE)->u.base.dependent_init_p) 3929 #define SET_DECL_DEPENDENT_INIT_P(NODE, X) \ 3930 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))->u.base.dependent_init_p = (X)) 3931 3932 /* Nonzero if NODE is an artificial VAR_DECL for a C++17 structured binding 3933 declaration or one of VAR_DECLs for the user identifiers in it. */ 3934 #define DECL_DECOMPOSITION_P(NODE) \ 3935 (VAR_P (NODE) && DECL_LANG_SPECIFIC (NODE) \ 3936 ? DECL_LANG_SPECIFIC (NODE)->u.base.selector == lds_decomp \ 3937 : false) 3938 3939 /* The underlying artificial VAR_DECL for structured binding. */ 3940 #define DECL_DECOMP_BASE(NODE) \ 3941 (LANG_DECL_DECOMP_CHECK (NODE)->base) 3942 3943 /* Nonzero if NODE is an inline VAR_DECL. In C++17, static data members 3944 declared with constexpr specifier are implicitly inline variables. */ 3945 #define DECL_INLINE_VAR_P(NODE) \ 3946 (DECL_VAR_DECLARED_INLINE_P (NODE) \ 3947 || (cxx_dialect >= cxx17 \ 3948 && DECL_DECLARED_CONSTEXPR_P (NODE) \ 3949 && DECL_CLASS_SCOPE_P (NODE))) 3950 3951 /* Nonzero if DECL was declared with '= delete'. */ 3952 #define DECL_DELETED_FN(DECL) \ 3953 (LANG_DECL_FN_CHECK (DECL)->min.base.threadprivate_or_deleted_p) 3954 3955 /* Nonzero if DECL was declared with '= default' (maybe implicitly). */ 3956 #define DECL_DEFAULTED_FN(DECL) \ 3957 (LANG_DECL_FN_CHECK (DECL)->defaulted_p) 3958 3959 /* Nonzero if DECL is explicitly defaulted in the class body. */ 3960 #define DECL_DEFAULTED_IN_CLASS_P(DECL) \ 3961 (DECL_DEFAULTED_FN (DECL) && DECL_INITIALIZED_IN_CLASS_P (DECL)) 3962 /* Nonzero if DECL was defaulted outside the class body. */ 3963 #define DECL_DEFAULTED_OUTSIDE_CLASS_P(DECL) \ 3964 (DECL_DEFAULTED_FN (DECL) \ 3965 && !(DECL_ARTIFICIAL (DECL) || DECL_INITIALIZED_IN_CLASS_P (DECL))) 3966 3967 /* Record whether a typedef for type `int' was actually `signed int'. */ 3968 #define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP) 3969 3970 /* Returns nonzero if DECL has external linkage, as specified by the 3971 language standard. (This predicate may hold even when the 3972 corresponding entity is not actually given external linkage in the 3973 object file; see decl_linkage for details.) */ 3974 #define DECL_EXTERNAL_LINKAGE_P(DECL) \ 3975 (decl_linkage (DECL) == lk_external) 3976 3977 /* Keep these codes in ascending code order. */ 3978 3979 #define INTEGRAL_CODE_P(CODE) \ 3980 ((CODE) == ENUMERAL_TYPE \ 3981 || (CODE) == BOOLEAN_TYPE \ 3982 || (CODE) == INTEGER_TYPE) 3983 3984 /* [basic.fundamental] 3985 3986 Types bool, char, wchar_t, and the signed and unsigned integer types 3987 are collectively called integral types. 3988 3989 Note that INTEGRAL_TYPE_P, as defined in tree.h, allows enumeration 3990 types as well, which is incorrect in C++. Keep these checks in 3991 ascending code order. */ 3992 #define CP_INTEGRAL_TYPE_P(TYPE) \ 3993 (TREE_CODE (TYPE) == BOOLEAN_TYPE \ 3994 || TREE_CODE (TYPE) == INTEGER_TYPE) 3995 3996 /* Returns true if TYPE is an integral or enumeration name. Keep 3997 these checks in ascending code order. */ 3998 #define INTEGRAL_OR_ENUMERATION_TYPE_P(TYPE) \ 3999 (TREE_CODE (TYPE) == ENUMERAL_TYPE || CP_INTEGRAL_TYPE_P (TYPE)) 4000 4001 /* Returns true if TYPE is an integral or unscoped enumeration type. */ 4002 #define INTEGRAL_OR_UNSCOPED_ENUMERATION_TYPE_P(TYPE) \ 4003 (UNSCOPED_ENUM_P (TYPE) || CP_INTEGRAL_TYPE_P (TYPE)) 4004 4005 /* True if the class type TYPE is a literal type. */ 4006 #define CLASSTYPE_LITERAL_P(TYPE) \ 4007 (LANG_TYPE_CLASS_CHECK (TYPE)->is_literal) 4008 4009 /* [basic.fundamental] 4010 4011 Integral and floating types are collectively called arithmetic 4012 types. 4013 4014 As a GNU extension, we also accept complex types. 4015 4016 Keep these checks in ascending code order. */ 4017 #define ARITHMETIC_TYPE_P(TYPE) \ 4018 (CP_INTEGRAL_TYPE_P (TYPE) \ 4019 || TREE_CODE (TYPE) == REAL_TYPE \ 4020 || TREE_CODE (TYPE) == COMPLEX_TYPE) 4021 4022 /* True iff TYPE is cv decltype(nullptr). */ 4023 #define NULLPTR_TYPE_P(TYPE) (TREE_CODE (TYPE) == NULLPTR_TYPE) 4024 4025 /* [basic.types] 4026 4027 Arithmetic types, enumeration types, pointer types, 4028 pointer-to-member types, and std::nullptr_t are collectively called 4029 scalar types. 4030 4031 Keep these checks in ascending code order. */ 4032 #define SCALAR_TYPE_P(TYPE) \ 4033 (TYPE_PTRDATAMEM_P (TYPE) \ 4034 || TREE_CODE (TYPE) == ENUMERAL_TYPE \ 4035 || ARITHMETIC_TYPE_P (TYPE) \ 4036 || TYPE_PTR_P (TYPE) \ 4037 || TYPE_PTRMEMFUNC_P (TYPE) \ 4038 || NULLPTR_TYPE_P (TYPE)) 4039 4040 /* Determines whether this type is a C++0x scoped enumeration 4041 type. Scoped enumerations types are introduced via "enum class" or 4042 "enum struct", e.g., 4043 4044 enum class Color { 4045 Red, Green, Blue 4046 }; 4047 4048 Scoped enumeration types are different from normal (unscoped) 4049 enumeration types in several ways: 4050 4051 - The enumerators of a scoped enumeration type are only available 4052 within the scope of the enumeration type and not in the 4053 enclosing scope. For example, the Red color can be referred to 4054 with "Color::Red" but not "Red". 4055 4056 - Scoped enumerators and enumerations do not implicitly convert 4057 to integers or 'bool'. 4058 4059 - The underlying type of the enum is well-defined. */ 4060 #define SCOPED_ENUM_P(TYPE) \ 4061 (TREE_CODE (TYPE) == ENUMERAL_TYPE && ENUM_IS_SCOPED (TYPE)) 4062 4063 /* Determine whether this is an unscoped enumeration type. */ 4064 #define UNSCOPED_ENUM_P(TYPE) \ 4065 (TREE_CODE (TYPE) == ENUMERAL_TYPE && !ENUM_IS_SCOPED (TYPE)) 4066 4067 /* Set the flag indicating whether an ENUMERAL_TYPE is a C++0x scoped 4068 enumeration type (1) or a normal (unscoped) enumeration type 4069 (0). */ 4070 #define SET_SCOPED_ENUM_P(TYPE, VAL) \ 4071 (ENUM_IS_SCOPED (TYPE) = (VAL)) 4072 4073 #define SET_OPAQUE_ENUM_P(TYPE, VAL) \ 4074 (ENUM_IS_OPAQUE (TYPE) = (VAL)) 4075 4076 #define OPAQUE_ENUM_P(TYPE) \ 4077 (TREE_CODE (TYPE) == ENUMERAL_TYPE && ENUM_IS_OPAQUE (TYPE)) 4078 4079 /* Determines whether an ENUMERAL_TYPE has an explicit 4080 underlying type. */ 4081 #define ENUM_FIXED_UNDERLYING_TYPE_P(NODE) (TYPE_LANG_FLAG_5 (NODE)) 4082 4083 /* Returns the underlying type of the given enumeration type. The 4084 underlying type is determined in different ways, depending on the 4085 properties of the enum: 4086 4087 - In C++0x, the underlying type can be explicitly specified, e.g., 4088 4089 enum E1 : char { ... } // underlying type is char 4090 4091 - In a C++0x scoped enumeration, the underlying type is int 4092 unless otherwises specified: 4093 4094 enum class E2 { ... } // underlying type is int 4095 4096 - Otherwise, the underlying type is determined based on the 4097 values of the enumerators. In this case, the 4098 ENUM_UNDERLYING_TYPE will not be set until after the definition 4099 of the enumeration is completed by finish_enum. */ 4100 #define ENUM_UNDERLYING_TYPE(TYPE) \ 4101 TREE_TYPE (ENUMERAL_TYPE_CHECK (TYPE)) 4102 4103 /* [dcl.init.aggr] 4104 4105 An aggregate is an array or a class with no user-provided 4106 constructors, no brace-or-equal-initializers for non-static data 4107 members, no private or protected non-static data members, no 4108 base classes, and no virtual functions. 4109 4110 As an extension, we also treat vectors as aggregates. Keep these 4111 checks in ascending code order. */ 4112 #define CP_AGGREGATE_TYPE_P(TYPE) \ 4113 (TREE_CODE (TYPE) == VECTOR_TYPE \ 4114 ||TREE_CODE (TYPE) == ARRAY_TYPE \ 4115 || (CLASS_TYPE_P (TYPE) && !CLASSTYPE_NON_AGGREGATE (TYPE))) 4116 4117 /* Nonzero for a class type means that the class type has a 4118 user-declared constructor. */ 4119 #define TYPE_HAS_USER_CONSTRUCTOR(NODE) (TYPE_LANG_FLAG_1 (NODE)) 4120 4121 /* Nonzero means that the FUNCTION_TYPE or METHOD_TYPE has a 4122 late-specified return type. */ 4123 #define TYPE_HAS_LATE_RETURN_TYPE(NODE) \ 4124 (TYPE_LANG_FLAG_2 (FUNC_OR_METHOD_CHECK (NODE))) 4125 4126 /* When appearing in an INDIRECT_REF, it means that the tree structure 4127 underneath is actually a call to a constructor. This is needed 4128 when the constructor must initialize local storage (which can 4129 be automatically destroyed), rather than allowing it to allocate 4130 space from the heap. 4131 4132 When appearing in a SAVE_EXPR, it means that underneath 4133 is a call to a constructor. 4134 4135 When appearing in a CONSTRUCTOR, the expression is a 4136 compound literal. 4137 4138 When appearing in a FIELD_DECL, it means that this field 4139 has been duly initialized in its constructor. */ 4140 #define TREE_HAS_CONSTRUCTOR(NODE) (TREE_LANG_FLAG_4 (NODE)) 4141 4142 /* True if NODE is a brace-enclosed initializer. */ 4143 #define BRACE_ENCLOSED_INITIALIZER_P(NODE) \ 4144 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_TYPE (NODE) == init_list_type_node) 4145 4146 /* True if NODE is a compound-literal, i.e., a brace-enclosed 4147 initializer cast to a particular type. */ 4148 #define COMPOUND_LITERAL_P(NODE) \ 4149 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_HAS_CONSTRUCTOR (NODE)) 4150 4151 #define EMPTY_CONSTRUCTOR_P(NODE) (TREE_CODE (NODE) == CONSTRUCTOR \ 4152 && vec_safe_is_empty(CONSTRUCTOR_ELTS(NODE))\ 4153 && !TREE_HAS_CONSTRUCTOR (NODE)) 4154 4155 /* True if NODE is a init-list used as a direct-initializer, i.e. 4156 B b{1,2}, not B b({1,2}) or B b = {1,2}. */ 4157 #define CONSTRUCTOR_IS_DIRECT_INIT(NODE) (TREE_LANG_FLAG_0 (CONSTRUCTOR_CHECK (NODE))) 4158 4159 /* True if an uninitialized element in NODE should not be treated as 4160 implicitly value-initialized. Only used in constexpr evaluation. */ 4161 #define CONSTRUCTOR_NO_IMPLICIT_ZERO(NODE) \ 4162 (TREE_LANG_FLAG_1 (CONSTRUCTOR_CHECK (NODE))) 4163 4164 /* True if this CONSTRUCTOR should not be used as a variable initializer 4165 because it was loaded from a constexpr variable with mutable fields. */ 4166 #define CONSTRUCTOR_MUTABLE_POISON(NODE) \ 4167 (TREE_LANG_FLAG_2 (CONSTRUCTOR_CHECK (NODE))) 4168 4169 /* True if this typed CONSTRUCTOR represents C99 compound-literal syntax rather 4170 than C++11 functional cast syntax. */ 4171 #define CONSTRUCTOR_C99_COMPOUND_LITERAL(NODE) \ 4172 (TREE_LANG_FLAG_3 (CONSTRUCTOR_CHECK (NODE))) 4173 4174 /* True if this CONSTRUCTOR contains PLACEHOLDER_EXPRs referencing the 4175 CONSTRUCTOR's type not nested inside another CONSTRUCTOR marked with 4176 CONSTRUCTOR_PLACEHOLDER_BOUNDARY. */ 4177 #define CONSTRUCTOR_PLACEHOLDER_BOUNDARY(NODE) \ 4178 (TREE_LANG_FLAG_5 (CONSTRUCTOR_CHECK (NODE))) 4179 4180 #define DIRECT_LIST_INIT_P(NODE) \ 4181 (BRACE_ENCLOSED_INITIALIZER_P (NODE) && CONSTRUCTOR_IS_DIRECT_INIT (NODE)) 4182 4183 /* True if NODE represents a conversion for direct-initialization in a 4184 template. Set by perform_implicit_conversion_flags. */ 4185 #define IMPLICIT_CONV_EXPR_DIRECT_INIT(NODE) \ 4186 (TREE_LANG_FLAG_0 (IMPLICIT_CONV_EXPR_CHECK (NODE))) 4187 4188 /* True if NODE represents a dependent conversion of a non-type template 4189 argument. Set by maybe_convert_nontype_argument. */ 4190 #define IMPLICIT_CONV_EXPR_NONTYPE_ARG(NODE) \ 4191 (TREE_LANG_FLAG_1 (IMPLICIT_CONV_EXPR_CHECK (NODE))) 4192 4193 /* Nonzero means that an object of this type can not be initialized using 4194 an initializer list. */ 4195 #define CLASSTYPE_NON_AGGREGATE(NODE) \ 4196 (LANG_TYPE_CLASS_CHECK (NODE)->non_aggregate) 4197 #define TYPE_NON_AGGREGATE_CLASS(NODE) \ 4198 (CLASS_TYPE_P (NODE) && CLASSTYPE_NON_AGGREGATE (NODE)) 4199 4200 /* Nonzero if there is a non-trivial X::op=(cv X&) for this class. */ 4201 #define TYPE_HAS_COMPLEX_COPY_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_copy_assign) 4202 4203 /* Nonzero if there is a non-trivial X::X(cv X&) for this class. */ 4204 #define TYPE_HAS_COMPLEX_COPY_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_copy_ctor) 4205 4206 /* Nonzero if there is a non-trivial X::op=(X&&) for this class. */ 4207 #define TYPE_HAS_COMPLEX_MOVE_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_move_assign) 4208 4209 /* Nonzero if there is a non-trivial X::X(X&&) for this class. */ 4210 #define TYPE_HAS_COMPLEX_MOVE_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_move_ctor) 4211 4212 /* Nonzero if there is no trivial default constructor for this class. */ 4213 #define TYPE_HAS_COMPLEX_DFLT(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_dflt) 4214 4215 /* Nonzero if TYPE has a trivial destructor. From [class.dtor]: 4216 4217 A destructor is trivial if it is an implicitly declared 4218 destructor and if: 4219 4220 - all of the direct base classes of its class have trivial 4221 destructors, 4222 4223 - for all of the non-static data members of its class that are 4224 of class type (or array thereof), each such class has a 4225 trivial destructor. */ 4226 #define TYPE_HAS_TRIVIAL_DESTRUCTOR(NODE) \ 4227 (!TYPE_HAS_NONTRIVIAL_DESTRUCTOR (NODE)) 4228 4229 /* Nonzero for _TYPE node means that this type does not have a trivial 4230 destructor. Therefore, destroying an object of this type will 4231 involve a call to a destructor. This can apply to objects of 4232 ARRAY_TYPE is the type of the elements needs a destructor. */ 4233 #define TYPE_HAS_NONTRIVIAL_DESTRUCTOR(NODE) \ 4234 (TYPE_LANG_FLAG_4 (NODE)) 4235 4236 /* Nonzero for class type means that the default constructor is trivial. */ 4237 #define TYPE_HAS_TRIVIAL_DFLT(NODE) \ 4238 (TYPE_HAS_DEFAULT_CONSTRUCTOR (NODE) && ! TYPE_HAS_COMPLEX_DFLT (NODE)) 4239 4240 /* Nonzero for class type means that copy initialization of this type can use 4241 a bitwise copy. */ 4242 #define TYPE_HAS_TRIVIAL_COPY_CTOR(NODE) \ 4243 (TYPE_HAS_COPY_CTOR (NODE) && ! TYPE_HAS_COMPLEX_COPY_CTOR (NODE)) 4244 4245 /* Nonzero for class type means that assignment of this type can use 4246 a bitwise copy. */ 4247 #define TYPE_HAS_TRIVIAL_COPY_ASSIGN(NODE) \ 4248 (TYPE_HAS_COPY_ASSIGN (NODE) && ! TYPE_HAS_COMPLEX_COPY_ASSIGN (NODE)) 4249 4250 /* Returns true if NODE is a pointer-to-data-member. */ 4251 #define TYPE_PTRDATAMEM_P(NODE) \ 4252 (TREE_CODE (NODE) == OFFSET_TYPE) 4253 /* Returns true if NODE is a pointer. */ 4254 #define TYPE_PTR_P(NODE) \ 4255 (TREE_CODE (NODE) == POINTER_TYPE) 4256 4257 /* Returns true if NODE is a reference. */ 4258 #define TYPE_REF_P(NODE) \ 4259 (TREE_CODE (NODE) == REFERENCE_TYPE) 4260 4261 /* Returns true if NODE is an object type: 4262 4263 [basic.types] 4264 4265 An object type is a (possibly cv-qualified) type that is not a 4266 function type, not a reference type, and not a void type. 4267 4268 Keep these checks in ascending order, for speed. */ 4269 #define TYPE_OBJ_P(NODE) \ 4270 (TREE_CODE (NODE) != REFERENCE_TYPE \ 4271 && !VOID_TYPE_P (NODE) \ 4272 && TREE_CODE (NODE) != FUNCTION_TYPE \ 4273 && TREE_CODE (NODE) != METHOD_TYPE) 4274 4275 /* Returns true if NODE is a pointer to an object. Keep these checks 4276 in ascending tree code order. */ 4277 #define TYPE_PTROB_P(NODE) \ 4278 (TYPE_PTR_P (NODE) && TYPE_OBJ_P (TREE_TYPE (NODE))) 4279 4280 /* Returns true if NODE is a reference to an object. Keep these checks 4281 in ascending tree code order. */ 4282 #define TYPE_REF_OBJ_P(NODE) \ 4283 (TREE_CODE (NODE) == REFERENCE_TYPE && TYPE_OBJ_P (TREE_TYPE (NODE))) 4284 4285 /* Returns true if NODE is a pointer to an object, or a pointer to 4286 void. Keep these checks in ascending tree code order. */ 4287 #define TYPE_PTROBV_P(NODE) \ 4288 (TYPE_PTR_P (NODE) \ 4289 && !(TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE \ 4290 || TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE)) 4291 4292 /* Returns true if NODE is a pointer to function type. */ 4293 #define TYPE_PTRFN_P(NODE) \ 4294 (TYPE_PTR_P (NODE) \ 4295 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE) 4296 4297 /* Returns true if NODE is a reference to function type. */ 4298 #define TYPE_REFFN_P(NODE) \ 4299 (TREE_CODE (NODE) == REFERENCE_TYPE \ 4300 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE) 4301 4302 /* Returns true if NODE is a pointer to member function type. */ 4303 #define TYPE_PTRMEMFUNC_P(NODE) \ 4304 (TREE_CODE (NODE) == RECORD_TYPE \ 4305 && TYPE_PTRMEMFUNC_FLAG (NODE)) 4306 4307 #define TYPE_PTRMEMFUNC_FLAG(NODE) \ 4308 (TYPE_LANG_FLAG_2 (RECORD_TYPE_CHECK (NODE))) 4309 4310 /* Returns true if NODE is a pointer-to-member. */ 4311 #define TYPE_PTRMEM_P(NODE) \ 4312 (TYPE_PTRDATAMEM_P (NODE) || TYPE_PTRMEMFUNC_P (NODE)) 4313 4314 /* Returns true if NODE is a pointer or a pointer-to-member. */ 4315 #define TYPE_PTR_OR_PTRMEM_P(NODE) \ 4316 (TYPE_PTR_P (NODE) || TYPE_PTRMEM_P (NODE)) 4317 4318 /* Indicates when overload resolution may resolve to a pointer to 4319 member function. [expr.unary.op]/3 */ 4320 #define PTRMEM_OK_P(NODE) \ 4321 TREE_LANG_FLAG_0 (TREE_CHECK3 ((NODE), ADDR_EXPR, OFFSET_REF, SCOPE_REF)) 4322 4323 /* Get the POINTER_TYPE to the METHOD_TYPE associated with this 4324 pointer to member function. TYPE_PTRMEMFUNC_P _must_ be true, 4325 before using this macro. */ 4326 #define TYPE_PTRMEMFUNC_FN_TYPE(NODE) \ 4327 (cp_build_qualified_type (TREE_TYPE (TYPE_FIELDS (NODE)),\ 4328 cp_type_quals (NODE))) 4329 4330 /* As above, but can be used in places that want an lvalue at the expense 4331 of not necessarily having the correct cv-qualifiers. */ 4332 #define TYPE_PTRMEMFUNC_FN_TYPE_RAW(NODE) \ 4333 (TREE_TYPE (TYPE_FIELDS (NODE))) 4334 4335 /* Returns `A' for a type like `int (A::*)(double)' */ 4336 #define TYPE_PTRMEMFUNC_OBJECT_TYPE(NODE) \ 4337 TYPE_METHOD_BASETYPE (TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE))) 4338 4339 /* The canonical internal RECORD_TYPE from the POINTER_TYPE to 4340 METHOD_TYPE. */ 4341 #define TYPE_PTRMEMFUNC_TYPE(NODE) \ 4342 TYPE_LANG_SLOT_1 (NODE) 4343 4344 /* For a pointer-to-member type of the form `T X::*', this is `X'. 4345 For a type like `void (X::*)() const', this type is `X', not `const 4346 X'. To get at the `const X' you have to look at the 4347 TYPE_PTRMEM_POINTED_TO_TYPE; there, the first parameter will have 4348 type `const X*'. */ 4349 #define TYPE_PTRMEM_CLASS_TYPE(NODE) \ 4350 (TYPE_PTRDATAMEM_P (NODE) \ 4351 ? TYPE_OFFSET_BASETYPE (NODE) \ 4352 : TYPE_PTRMEMFUNC_OBJECT_TYPE (NODE)) 4353 4354 /* For a pointer-to-member type of the form `T X::*', this is `T'. */ 4355 #define TYPE_PTRMEM_POINTED_TO_TYPE(NODE) \ 4356 (TYPE_PTRDATAMEM_P (NODE) \ 4357 ? TREE_TYPE (NODE) \ 4358 : TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE))) 4359 4360 /* For a pointer-to-member constant `X::Y' this is the RECORD_TYPE for 4361 `X'. */ 4362 #define PTRMEM_CST_CLASS(NODE) \ 4363 TYPE_PTRMEM_CLASS_TYPE (TREE_TYPE (PTRMEM_CST_CHECK (NODE))) 4364 4365 /* For a pointer-to-member constant `X::Y' this is the _DECL for 4366 `Y'. */ 4367 #define PTRMEM_CST_MEMBER(NODE) \ 4368 (((ptrmem_cst_t)PTRMEM_CST_CHECK (NODE))->member) 4369 4370 /* The expression in question for a TYPEOF_TYPE. */ 4371 #define TYPEOF_TYPE_EXPR(NODE) (TYPE_VALUES_RAW (TYPEOF_TYPE_CHECK (NODE))) 4372 4373 /* The type in question for an UNDERLYING_TYPE. */ 4374 #define UNDERLYING_TYPE_TYPE(NODE) \ 4375 (TYPE_VALUES_RAW (UNDERLYING_TYPE_CHECK (NODE))) 4376 4377 /* The type in question for BASES. */ 4378 #define BASES_TYPE(NODE) \ 4379 (TYPE_VALUES_RAW (BASES_CHECK (NODE))) 4380 4381 #define BASES_DIRECT(NODE) \ 4382 TREE_LANG_FLAG_0 (BASES_CHECK (NODE)) 4383 4384 /* The expression in question for a DECLTYPE_TYPE. */ 4385 #define DECLTYPE_TYPE_EXPR(NODE) (TYPE_VALUES_RAW (DECLTYPE_TYPE_CHECK (NODE))) 4386 4387 /* Whether the DECLTYPE_TYPE_EXPR of NODE was originally parsed as an 4388 id-expression or a member-access expression. When false, it was 4389 parsed as a full expression. */ 4390 #define DECLTYPE_TYPE_ID_EXPR_OR_MEMBER_ACCESS_P(NODE) \ 4391 (DECLTYPE_TYPE_CHECK (NODE))->type_common.string_flag 4392 4393 /* These flags indicate that we want different semantics from normal 4394 decltype: lambda capture just drops references, init capture 4395 uses auto semantics, lambda proxies look through implicit dereference. */ 4396 #define DECLTYPE_FOR_LAMBDA_CAPTURE(NODE) \ 4397 TREE_LANG_FLAG_0 (DECLTYPE_TYPE_CHECK (NODE)) 4398 #define DECLTYPE_FOR_INIT_CAPTURE(NODE) \ 4399 TREE_LANG_FLAG_1 (DECLTYPE_TYPE_CHECK (NODE)) 4400 #define DECLTYPE_FOR_LAMBDA_PROXY(NODE) \ 4401 TREE_LANG_FLAG_2 (DECLTYPE_TYPE_CHECK (NODE)) 4402 #define DECLTYPE_FOR_REF_CAPTURE(NODE) \ 4403 TREE_LANG_FLAG_3 (DECLTYPE_TYPE_CHECK (NODE)) 4404 4405 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `extern' was 4406 specified in its declaration. This can also be set for an 4407 erroneously declared PARM_DECL. */ 4408 #define DECL_THIS_EXTERN(NODE) \ 4409 DECL_LANG_FLAG_2 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE)) 4410 4411 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `static' was 4412 specified in its declaration. This can also be set for an 4413 erroneously declared PARM_DECL. */ 4414 #define DECL_THIS_STATIC(NODE) \ 4415 DECL_LANG_FLAG_6 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE)) 4416 4417 /* Nonzero for FIELD_DECL node means that this field is a lambda capture 4418 field for an array of runtime bound. */ 4419 #define DECL_VLA_CAPTURE_P(NODE) \ 4420 DECL_LANG_FLAG_1 (FIELD_DECL_CHECK (NODE)) 4421 4422 /* Nonzero for PARM_DECL node means that this is an array function 4423 parameter, i.e, a[] rather than *a. */ 4424 #define DECL_ARRAY_PARAMETER_P(NODE) \ 4425 DECL_LANG_FLAG_1 (PARM_DECL_CHECK (NODE)) 4426 4427 /* Nonzero for a FIELD_DECL who's NSMDI is currently being 4428 instantiated. */ 4429 #define DECL_INSTANTIATING_NSDMI_P(NODE) \ 4430 DECL_LANG_FLAG_2 (FIELD_DECL_CHECK (NODE)) 4431 4432 /* Nonzero for FIELD_DECL node means that this field is a base class 4433 of the parent object, as opposed to a member field. */ 4434 #define DECL_FIELD_IS_BASE(NODE) \ 4435 DECL_LANG_FLAG_6 (FIELD_DECL_CHECK (NODE)) 4436 4437 /* Nonzero for FIELD_DECL node means that this field is a simple (no 4438 explicit initializer) lambda capture field, making it invisible to 4439 name lookup in unevaluated contexts. */ 4440 #define DECL_NORMAL_CAPTURE_P(NODE) \ 4441 DECL_LANG_FLAG_7 (FIELD_DECL_CHECK (NODE)) 4442 4443 /* Nonzero if TYPE is an anonymous union or struct type. We have to use a 4444 flag for this because "A union for which objects or pointers are 4445 declared is not an anonymous union" [class.union]. */ 4446 #define ANON_AGGR_TYPE_P(NODE) \ 4447 (CLASS_TYPE_P (NODE) && LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr) 4448 #define SET_ANON_AGGR_TYPE_P(NODE) \ 4449 (LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr = 1) 4450 4451 /* Nonzero if TYPE is an anonymous union type. */ 4452 #define ANON_UNION_TYPE_P(NODE) \ 4453 (TREE_CODE (NODE) == UNION_TYPE && ANON_AGGR_TYPE_P (NODE)) 4454 4455 /* Define fields and accessors for nodes representing declared names. */ 4456 4457 /* Nonzero if TYPE is an unnamed class with a typedef for linkage purposes. */ 4458 #define TYPE_WAS_UNNAMED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->was_anonymous) 4459 4460 /* C++: all of these are overloaded! These apply only to TYPE_DECLs. */ 4461 4462 /* The format of each node in the DECL_FRIENDLIST is as follows: 4463 4464 The TREE_PURPOSE will be the name of a function, i.e., an 4465 IDENTIFIER_NODE. The TREE_VALUE will be itself a TREE_LIST, whose 4466 TREE_VALUEs are friends with the given name. */ 4467 #define DECL_FRIENDLIST(NODE) (DECL_INITIAL (NODE)) 4468 #define FRIEND_NAME(LIST) (TREE_PURPOSE (LIST)) 4469 #define FRIEND_DECLS(LIST) (TREE_VALUE (LIST)) 4470 4471 /* The DECL_ACCESS, if non-NULL, is a TREE_LIST. The TREE_PURPOSE of 4472 each node is a type; the TREE_VALUE is the access granted for this 4473 DECL in that type. The DECL_ACCESS is set by access declarations. 4474 For example, if a member that would normally be public in a 4475 derived class is made protected, then the derived class and the 4476 protected_access_node will appear in the DECL_ACCESS for the node. */ 4477 #define DECL_ACCESS(NODE) (LANG_DECL_U2_CHECK (NODE, 0)->access) 4478 4479 /* Nonzero if the FUNCTION_DECL is a global constructor. */ 4480 #define DECL_GLOBAL_CTOR_P(NODE) \ 4481 (LANG_DECL_FN_CHECK (NODE)->global_ctor_p) 4482 4483 /* Nonzero if the FUNCTION_DECL is a global destructor. */ 4484 #define DECL_GLOBAL_DTOR_P(NODE) \ 4485 (LANG_DECL_FN_CHECK (NODE)->global_dtor_p) 4486 4487 /* Accessor macros for C++ template decl nodes. */ 4488 4489 /* The DECL_TEMPLATE_PARMS are a list. The TREE_PURPOSE of each node 4490 is a INT_CST whose TREE_INT_CST_LOW indicates the level of the 4491 template parameters, with 1 being the outermost set of template 4492 parameters. The TREE_VALUE is a vector, whose elements are the 4493 template parameters at each level. Each element in the vector is a 4494 TREE_LIST, whose TREE_VALUE is a PARM_DECL (if the parameter is a 4495 non-type parameter), or a TYPE_DECL (if the parameter is a type 4496 parameter). The TREE_PURPOSE is the default value, if any. The 4497 TEMPLATE_PARM_INDEX for the parameter is available as the 4498 DECL_INITIAL (for a PARM_DECL) or as the TREE_TYPE (for a 4499 TYPE_DECL). 4500 4501 FIXME: CONST_CAST_TREE is a hack that hopefully will go away after 4502 tree is converted to C++ class hiearchy. */ 4503 #define DECL_TEMPLATE_PARMS(NODE) \ 4504 ((struct tree_template_decl *)CONST_CAST_TREE (TEMPLATE_DECL_CHECK (NODE)))->arguments 4505 #define DECL_INNERMOST_TEMPLATE_PARMS(NODE) \ 4506 INNERMOST_TEMPLATE_PARMS (DECL_TEMPLATE_PARMS (NODE)) 4507 #define DECL_NTPARMS(NODE) \ 4508 TREE_VEC_LENGTH (DECL_INNERMOST_TEMPLATE_PARMS (NODE)) 4509 /* For function, method, class-data templates. 4510 4511 FIXME: CONST_CAST_TREE is a hack that hopefully will go away after 4512 tree is converted to C++ class hiearchy. */ 4513 #define DECL_TEMPLATE_RESULT(NODE) \ 4514 ((struct tree_template_decl *)CONST_CAST_TREE(TEMPLATE_DECL_CHECK (NODE)))->result 4515 /* For a function template at namespace scope, DECL_TEMPLATE_INSTANTIATIONS 4516 lists all instantiations and specializations of the function so that 4517 tsubst_friend_function can reassign them to another template if we find 4518 that the namespace-scope template is really a partial instantiation of a 4519 friend template. 4520 4521 For a class template the DECL_TEMPLATE_INSTANTIATIONS lists holds 4522 all instantiations and specializations of the class type, including 4523 partial instantiations and partial specializations, so that if we 4524 explicitly specialize a partial instantiation we can walk the list 4525 in maybe_process_partial_specialization and reassign them or complain 4526 as appropriate. 4527 4528 In both cases, the TREE_PURPOSE of each node contains the arguments 4529 used; the TREE_VALUE contains the generated variable. The template 4530 arguments are always complete. For example, given: 4531 4532 template <class T> struct S1 { 4533 template <class U> struct S2 {}; 4534 template <class U> struct S2<U*> {}; 4535 }; 4536 4537 the record for the partial specialization will contain, as its 4538 argument list, { {T}, {U*} }, and will be on the 4539 DECL_TEMPLATE_INSTANTIATIONS list for `template <class T> template 4540 <class U> struct S1<T>::S2'. 4541 4542 This list is not used for other templates. */ 4543 #define DECL_TEMPLATE_INSTANTIATIONS(NODE) \ 4544 DECL_SIZE_UNIT (TEMPLATE_DECL_CHECK (NODE)) 4545 4546 /* For a class template, this list contains the partial 4547 specializations of this template. (Full specializations are not 4548 recorded on this list.) The TREE_PURPOSE holds the arguments used 4549 in the partial specialization (e.g., for `template <class T> struct 4550 S<T*, int>' this will be `T*, int'.) The arguments will also include 4551 any outer template arguments. The TREE_VALUE holds the TEMPLATE_DECL 4552 for the partial specialization. The TREE_TYPE is the _TYPE node for 4553 the partial specialization. 4554 4555 This list is not used for other templates. */ 4556 #define DECL_TEMPLATE_SPECIALIZATIONS(NODE) \ 4557 DECL_SIZE (TEMPLATE_DECL_CHECK (NODE)) 4558 4559 /* Nonzero for a DECL which is actually a template parameter. Keep 4560 these checks in ascending tree code order. */ 4561 #define DECL_TEMPLATE_PARM_P(NODE) \ 4562 (DECL_LANG_FLAG_0 (NODE) \ 4563 && (TREE_CODE (NODE) == CONST_DECL \ 4564 || TREE_CODE (NODE) == PARM_DECL \ 4565 || TREE_CODE (NODE) == TYPE_DECL \ 4566 || TREE_CODE (NODE) == TEMPLATE_DECL)) 4567 4568 /* Nonzero for a raw template parameter node. */ 4569 #define TEMPLATE_PARM_P(NODE) \ 4570 (TREE_CODE (NODE) == TEMPLATE_TYPE_PARM \ 4571 || TREE_CODE (NODE) == TEMPLATE_TEMPLATE_PARM \ 4572 || TREE_CODE (NODE) == TEMPLATE_PARM_INDEX) 4573 4574 /* Mark NODE as a template parameter. */ 4575 #define SET_DECL_TEMPLATE_PARM_P(NODE) \ 4576 (DECL_LANG_FLAG_0 (NODE) = 1) 4577 4578 /* Nonzero if NODE is a template template parameter. */ 4579 #define DECL_TEMPLATE_TEMPLATE_PARM_P(NODE) \ 4580 (TREE_CODE (NODE) == TEMPLATE_DECL && DECL_TEMPLATE_PARM_P (NODE)) 4581 4582 /* Nonzero for a DECL that represents a function template. */ 4583 #define DECL_FUNCTION_TEMPLATE_P(NODE) \ 4584 (TREE_CODE (NODE) == TEMPLATE_DECL \ 4585 && DECL_TEMPLATE_RESULT (NODE) != NULL_TREE \ 4586 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == FUNCTION_DECL) 4587 4588 /* Nonzero for a DECL that represents a class template or alias 4589 template. */ 4590 #define DECL_TYPE_TEMPLATE_P(NODE) \ 4591 (TREE_CODE (NODE) == TEMPLATE_DECL \ 4592 && DECL_TEMPLATE_RESULT (NODE) != NULL_TREE \ 4593 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == TYPE_DECL) 4594 4595 /* Nonzero for a DECL that represents a class template. */ 4596 #define DECL_CLASS_TEMPLATE_P(NODE) \ 4597 (DECL_TYPE_TEMPLATE_P (NODE) \ 4598 && DECL_IMPLICIT_TYPEDEF_P (DECL_TEMPLATE_RESULT (NODE))) 4599 4600 /* Nonzero for a TEMPLATE_DECL that represents an alias template. */ 4601 #define DECL_ALIAS_TEMPLATE_P(NODE) \ 4602 (DECL_TYPE_TEMPLATE_P (NODE) \ 4603 && !DECL_ARTIFICIAL (DECL_TEMPLATE_RESULT (NODE))) 4604 4605 /* Nonzero for a NODE which declares a type. */ 4606 #define DECL_DECLARES_TYPE_P(NODE) \ 4607 (TREE_CODE (NODE) == TYPE_DECL || DECL_TYPE_TEMPLATE_P (NODE)) 4608 4609 /* Nonzero if NODE declares a function. */ 4610 #define DECL_DECLARES_FUNCTION_P(NODE) \ 4611 (TREE_CODE (NODE) == FUNCTION_DECL || DECL_FUNCTION_TEMPLATE_P (NODE)) 4612 4613 /* Nonzero if NODE is the typedef implicitly generated for a type when 4614 the type is declared. In C++, `struct S {};' is roughly 4615 equivalent to `struct S {}; typedef struct S S;' in C. 4616 DECL_IMPLICIT_TYPEDEF_P will hold for the typedef indicated in this 4617 example. In C++, there is a second implicit typedef for each 4618 class, called the injected-class-name, in the scope of `S' itself, so that 4619 you can say `S::S'. DECL_SELF_REFERENCE_P will hold for that typedef. */ 4620 #define DECL_IMPLICIT_TYPEDEF_P(NODE) \ 4621 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_2 (NODE)) 4622 #define SET_DECL_IMPLICIT_TYPEDEF_P(NODE) \ 4623 (DECL_LANG_FLAG_2 (NODE) = 1) 4624 #define DECL_SELF_REFERENCE_P(NODE) \ 4625 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_4 (NODE)) 4626 #define SET_DECL_SELF_REFERENCE_P(NODE) \ 4627 (DECL_LANG_FLAG_4 (NODE) = 1) 4628 4629 /* A `primary' template is one that has its own template header and is not 4630 a partial specialization. A member function of a class template is a 4631 template, but not primary. A member template is primary. Friend 4632 templates are primary, too. */ 4633 4634 /* Returns the primary template corresponding to these parameters. */ 4635 #define DECL_PRIMARY_TEMPLATE(NODE) \ 4636 (TREE_TYPE (DECL_INNERMOST_TEMPLATE_PARMS (NODE))) 4637 4638 /* Returns nonzero if NODE is a primary template. */ 4639 #define PRIMARY_TEMPLATE_P(NODE) (DECL_PRIMARY_TEMPLATE (NODE) == (NODE)) 4640 4641 /* Nonzero iff NODE is a specialization of a template. The value 4642 indicates the type of specializations: 4643 4644 1=implicit instantiation 4645 4646 2=partial or explicit specialization, e.g.: 4647 4648 template <> int min<int> (int, int), 4649 4650 3=explicit instantiation, e.g.: 4651 4652 template int min<int> (int, int); 4653 4654 Note that NODE will be marked as a specialization even if the 4655 template it is instantiating is not a primary template. For 4656 example, given: 4657 4658 template <typename T> struct O { 4659 void f(); 4660 struct I {}; 4661 }; 4662 4663 both O<int>::f and O<int>::I will be marked as instantiations. 4664 4665 If DECL_USE_TEMPLATE is nonzero, then DECL_TEMPLATE_INFO will also 4666 be non-NULL. */ 4667 #define DECL_USE_TEMPLATE(NODE) (DECL_LANG_SPECIFIC (NODE)->u.base.use_template) 4668 4669 /* Like DECL_USE_TEMPLATE, but for class types. */ 4670 #define CLASSTYPE_USE_TEMPLATE(NODE) \ 4671 (LANG_TYPE_CLASS_CHECK (NODE)->use_template) 4672 4673 /* True if NODE is a specialization of a primary template. */ 4674 #define CLASSTYPE_SPECIALIZATION_OF_PRIMARY_TEMPLATE_P(NODE) \ 4675 (CLASS_TYPE_P (NODE) \ 4676 && CLASSTYPE_USE_TEMPLATE (NODE) \ 4677 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE))) 4678 4679 #define DECL_TEMPLATE_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) & 1) 4680 #define CLASSTYPE_TEMPLATE_INSTANTIATION(NODE) \ 4681 (CLASSTYPE_USE_TEMPLATE (NODE) & 1) 4682 4683 #define DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) == 2) 4684 #define SET_DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) = 2) 4685 4686 /* Returns true for an explicit or partial specialization of a class 4687 template. */ 4688 #define CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \ 4689 (CLASSTYPE_USE_TEMPLATE (NODE) == 2) 4690 #define SET_CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \ 4691 (CLASSTYPE_USE_TEMPLATE (NODE) = 2) 4692 4693 #define DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 1) 4694 #define SET_DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 1) 4695 #define CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \ 4696 (CLASSTYPE_USE_TEMPLATE (NODE) == 1) 4697 #define SET_CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \ 4698 (CLASSTYPE_USE_TEMPLATE (NODE) = 1) 4699 4700 #define DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 3) 4701 #define SET_DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 3) 4702 #define CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \ 4703 (CLASSTYPE_USE_TEMPLATE (NODE) == 3) 4704 #define SET_CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \ 4705 (CLASSTYPE_USE_TEMPLATE (NODE) = 3) 4706 4707 /* Nonzero if DECL is a friend function which is an instantiation 4708 from the point of view of the compiler, but not from the point of 4709 view of the language. For example given: 4710 template <class T> struct S { friend void f(T) {}; }; 4711 the declaration of `void f(int)' generated when S<int> is 4712 instantiated will not be a DECL_TEMPLATE_INSTANTIATION, but will be 4713 a DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION. */ 4714 #define DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION(DECL) \ 4715 (DECL_LANG_SPECIFIC (DECL) && DECL_TEMPLATE_INFO (DECL) \ 4716 && !DECL_USE_TEMPLATE (DECL)) 4717 4718 /* Nonzero if DECL is a function generated from a function 'temploid', 4719 i.e. template, member of class template, or dependent friend. */ 4720 #define DECL_TEMPLOID_INSTANTIATION(DECL) \ 4721 (DECL_TEMPLATE_INSTANTIATION (DECL) \ 4722 || DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (DECL)) 4723 4724 /* Nonzero if DECL is either defined implicitly by the compiler or 4725 generated from a temploid. */ 4726 #define DECL_GENERATED_P(DECL) \ 4727 (DECL_TEMPLOID_INSTANTIATION (DECL) || DECL_DEFAULTED_FN (DECL)) 4728 4729 /* Nonzero iff we are currently processing a declaration for an 4730 entity with its own template parameter list, and which is not a 4731 full specialization. */ 4732 #define PROCESSING_REAL_TEMPLATE_DECL_P() \ 4733 (!processing_template_parmlist \ 4734 && processing_template_decl > template_class_depth (current_scope ())) 4735 4736 /* Nonzero if this VAR_DECL or FUNCTION_DECL has already been 4737 instantiated, i.e. its definition has been generated from the 4738 pattern given in the template. */ 4739 #define DECL_TEMPLATE_INSTANTIATED(NODE) \ 4740 DECL_LANG_FLAG_1 (VAR_OR_FUNCTION_DECL_CHECK (NODE)) 4741 4742 /* We know what we're doing with this decl now. */ 4743 #define DECL_INTERFACE_KNOWN(NODE) DECL_LANG_FLAG_5 (NODE) 4744 4745 /* DECL_EXTERNAL must be set on a decl until the decl is actually emitted, 4746 so that assemble_external will work properly. So we have this flag to 4747 tell us whether the decl is really not external. 4748 4749 This flag does not indicate whether or not the decl is defined in the 4750 current translation unit; it indicates whether or not we should emit the 4751 decl at the end of compilation if it is defined and needed. */ 4752 #define DECL_NOT_REALLY_EXTERN(NODE) \ 4753 (DECL_LANG_SPECIFIC (NODE)->u.base.not_really_extern) 4754 4755 #define DECL_REALLY_EXTERN(NODE) \ 4756 (DECL_EXTERNAL (NODE) \ 4757 && (!DECL_LANG_SPECIFIC (NODE) || !DECL_NOT_REALLY_EXTERN (NODE))) 4758 4759 /* A thunk is a stub function. 4760 4761 A thunk is an alternate entry point for an ordinary FUNCTION_DECL. 4762 The address of the ordinary FUNCTION_DECL is given by the 4763 DECL_INITIAL, which is always an ADDR_EXPR whose operand is a 4764 FUNCTION_DECL. The job of the thunk is to either adjust the this 4765 pointer before transferring control to the FUNCTION_DECL, or call 4766 FUNCTION_DECL and then adjust the result value. Note, the result 4767 pointer adjusting thunk must perform a call to the thunked 4768 function, (or be implemented via passing some invisible parameter 4769 to the thunked function, which is modified to perform the 4770 adjustment just before returning). 4771 4772 A thunk may perform either, or both, of the following operations: 4773 4774 o Adjust the this or result pointer by a constant offset. 4775 o Adjust the this or result pointer by looking up a vcall or vbase offset 4776 in the vtable. 4777 4778 A this pointer adjusting thunk converts from a base to a derived 4779 class, and hence adds the offsets. A result pointer adjusting thunk 4780 converts from a derived class to a base, and hence subtracts the 4781 offsets. If both operations are performed, then the constant 4782 adjustment is performed first for this pointer adjustment and last 4783 for the result pointer adjustment. 4784 4785 The constant adjustment is given by THUNK_FIXED_OFFSET. If the 4786 vcall or vbase offset is required, THUNK_VIRTUAL_OFFSET is 4787 used. For this pointer adjusting thunks, it is the vcall offset 4788 into the vtable. For result pointer adjusting thunks it is the 4789 binfo of the virtual base to convert to. Use that binfo's vbase 4790 offset. 4791 4792 It is possible to have equivalent covariant thunks. These are 4793 distinct virtual covariant thunks whose vbase offsets happen to 4794 have the same value. THUNK_ALIAS is used to pick one as the 4795 canonical thunk, which will get all the this pointer adjusting 4796 thunks attached to it. */ 4797 4798 /* An integer indicating how many bytes should be subtracted from the 4799 this or result pointer when this function is called. */ 4800 #define THUNK_FIXED_OFFSET(DECL) \ 4801 (DECL_LANG_SPECIFIC (THUNK_FUNCTION_CHECK (DECL))->u.fn.u5.fixed_offset) 4802 4803 /* A tree indicating how to perform the virtual adjustment. For a this 4804 adjusting thunk it is the number of bytes to be added to the vtable 4805 to find the vcall offset. For a result adjusting thunk, it is the 4806 binfo of the relevant virtual base. If NULL, then there is no 4807 virtual adjust. (The vptr is always located at offset zero from 4808 the this or result pointer.) (If the covariant type is within the 4809 class hierarchy being laid out, the vbase index is not yet known 4810 at the point we need to create the thunks, hence the need to use 4811 binfos.) */ 4812 4813 #define THUNK_VIRTUAL_OFFSET(DECL) \ 4814 (LANG_DECL_U2_CHECK (FUNCTION_DECL_CHECK (DECL), 0)->access) 4815 4816 /* A thunk which is equivalent to another thunk. */ 4817 #define THUNK_ALIAS(DECL) \ 4818 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->u.min.template_info) 4819 4820 /* For thunk NODE, this is the FUNCTION_DECL thunked to. It is 4821 possible for the target to be a thunk too. */ 4822 #define THUNK_TARGET(NODE) \ 4823 (LANG_DECL_FN_CHECK (NODE)->befriending_classes) 4824 4825 /* True for a SCOPE_REF iff the "template" keyword was used to 4826 indicate that the qualified name denotes a template. */ 4827 #define QUALIFIED_NAME_IS_TEMPLATE(NODE) \ 4828 (TREE_LANG_FLAG_1 (SCOPE_REF_CHECK (NODE))) 4829 4830 /* True for an OMP_ATOMIC that has dependent parameters. These are stored 4831 as an expr in operand 1, and integer_zero_node in operand 0. */ 4832 #define OMP_ATOMIC_DEPENDENT_P(NODE) \ 4833 (TREE_CODE (TREE_OPERAND (OMP_ATOMIC_CHECK (NODE), 0)) == INTEGER_CST) 4834 4835 /* Used while gimplifying continue statements bound to OMP_FOR nodes. */ 4836 #define OMP_FOR_GIMPLIFYING_P(NODE) \ 4837 (TREE_LANG_FLAG_0 (OMP_LOOP_CHECK (NODE))) 4838 4839 /* A language-specific token attached to the OpenMP data clauses to 4840 hold code (or code fragments) related to ctors, dtors, and op=. 4841 See semantics.c for details. */ 4842 #define CP_OMP_CLAUSE_INFO(NODE) \ 4843 TREE_TYPE (OMP_CLAUSE_RANGE_CHECK (NODE, OMP_CLAUSE_PRIVATE, \ 4844 OMP_CLAUSE_LINEAR)) 4845 4846 /* Nonzero if this transaction expression's body contains statements. */ 4847 #define TRANSACTION_EXPR_IS_STMT(NODE) \ 4848 TREE_LANG_FLAG_0 (TRANSACTION_EXPR_CHECK (NODE)) 4849 4850 /* These macros provide convenient access to the various _STMT nodes 4851 created when parsing template declarations. */ 4852 #define TRY_STMTS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 0) 4853 #define TRY_HANDLERS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 1) 4854 4855 #define EH_SPEC_STMTS(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 0) 4856 #define EH_SPEC_RAISES(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 1) 4857 4858 #define USING_STMT_NAMESPACE(NODE) TREE_OPERAND (USING_STMT_CHECK (NODE), 0) 4859 4860 /* Nonzero if this try block is a function try block. */ 4861 #define FN_TRY_BLOCK_P(NODE) TREE_LANG_FLAG_3 (TRY_BLOCK_CHECK (NODE)) 4862 #define HANDLER_PARMS(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 0) 4863 #define HANDLER_BODY(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 1) 4864 #define HANDLER_TYPE(NODE) TREE_TYPE (HANDLER_CHECK (NODE)) 4865 4866 /* CLEANUP_STMT accessors. The statement(s) covered, the cleanup to run 4867 and the VAR_DECL for which this cleanup exists. */ 4868 #define CLEANUP_BODY(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 0) 4869 #define CLEANUP_EXPR(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 1) 4870 #define CLEANUP_DECL(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 2) 4871 4872 /* IF_STMT accessors. These give access to the condition of the if 4873 statement, the then block of the if statement, and the else block 4874 of the if statement if it exists. */ 4875 #define IF_COND(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 0) 4876 #define THEN_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 1) 4877 #define ELSE_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 2) 4878 #define IF_SCOPE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 3) 4879 #define IF_STMT_CONSTEXPR_P(NODE) TREE_LANG_FLAG_0 (IF_STMT_CHECK (NODE)) 4880 4881 /* Like PACK_EXPANSION_EXTRA_ARGS, for constexpr if. IF_SCOPE is used while 4882 building an IF_STMT; IF_STMT_EXTRA_ARGS is used after it is complete. */ 4883 #define IF_STMT_EXTRA_ARGS(NODE) IF_SCOPE (NODE) 4884 4885 /* WHILE_STMT accessors. These give access to the condition of the 4886 while statement and the body of the while statement, respectively. */ 4887 #define WHILE_COND(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 0) 4888 #define WHILE_BODY(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 1) 4889 4890 /* DO_STMT accessors. These give access to the condition of the do 4891 statement and the body of the do statement, respectively. */ 4892 #define DO_COND(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 0) 4893 #define DO_BODY(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 1) 4894 4895 /* FOR_STMT accessors. These give access to the init statement, 4896 condition, update expression, and body of the for statement, 4897 respectively. */ 4898 #define FOR_INIT_STMT(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 0) 4899 #define FOR_COND(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 1) 4900 #define FOR_EXPR(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 2) 4901 #define FOR_BODY(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 3) 4902 #define FOR_SCOPE(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 4) 4903 4904 /* RANGE_FOR_STMT accessors. These give access to the declarator, 4905 expression, body, and scope of the statement, respectively. */ 4906 #define RANGE_FOR_DECL(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 0) 4907 #define RANGE_FOR_EXPR(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 1) 4908 #define RANGE_FOR_BODY(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 2) 4909 #define RANGE_FOR_SCOPE(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 3) 4910 #define RANGE_FOR_UNROLL(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 4) 4911 #define RANGE_FOR_IVDEP(NODE) TREE_LANG_FLAG_6 (RANGE_FOR_STMT_CHECK (NODE)) 4912 4913 #define SWITCH_STMT_COND(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 0) 4914 #define SWITCH_STMT_BODY(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 1) 4915 #define SWITCH_STMT_TYPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 2) 4916 #define SWITCH_STMT_SCOPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 3) 4917 /* True if there are case labels for all possible values of switch cond, either 4918 because there is a default: case label or because the case label ranges cover 4919 all values. */ 4920 #define SWITCH_STMT_ALL_CASES_P(NODE) \ 4921 TREE_LANG_FLAG_0 (SWITCH_STMT_CHECK (NODE)) 4922 /* True if the body of a switch stmt contains no BREAK_STMTs. */ 4923 #define SWITCH_STMT_NO_BREAK_P(NODE) \ 4924 TREE_LANG_FLAG_2 (SWITCH_STMT_CHECK (NODE)) 4925 4926 /* STMT_EXPR accessor. */ 4927 #define STMT_EXPR_STMT(NODE) TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0) 4928 4929 /* EXPR_STMT accessor. This gives the expression associated with an 4930 expression statement. */ 4931 #define EXPR_STMT_EXPR(NODE) TREE_OPERAND (EXPR_STMT_CHECK (NODE), 0) 4932 4933 /* True if this TARGET_EXPR was created by build_cplus_new, and so we can 4934 discard it if it isn't useful. */ 4935 #define TARGET_EXPR_IMPLICIT_P(NODE) \ 4936 TREE_LANG_FLAG_0 (TARGET_EXPR_CHECK (NODE)) 4937 4938 /* True if this TARGET_EXPR is the result of list-initialization of a 4939 temporary. */ 4940 #define TARGET_EXPR_LIST_INIT_P(NODE) \ 4941 TREE_LANG_FLAG_1 (TARGET_EXPR_CHECK (NODE)) 4942 4943 /* True if this TARGET_EXPR expresses direct-initialization of an object 4944 to be named later. */ 4945 #define TARGET_EXPR_DIRECT_INIT_P(NODE) \ 4946 TREE_LANG_FLAG_2 (TARGET_EXPR_CHECK (NODE)) 4947 4948 /* True if NODE is a TARGET_EXPR that just expresses a copy of its INITIAL; if 4949 the initializer has void type, it's doing something more complicated. */ 4950 #define SIMPLE_TARGET_EXPR_P(NODE) \ 4951 (TREE_CODE (NODE) == TARGET_EXPR \ 4952 && !VOID_TYPE_P (TREE_TYPE (TARGET_EXPR_INITIAL (NODE)))) 4953 4954 /* True if EXPR expresses direct-initialization of a TYPE. */ 4955 #define DIRECT_INIT_EXPR_P(TYPE,EXPR) \ 4956 (TREE_CODE (EXPR) == TARGET_EXPR && TREE_LANG_FLAG_2 (EXPR) \ 4957 && same_type_ignoring_top_level_qualifiers_p (TYPE, TREE_TYPE (EXPR))) 4958 4959 /* True if this CONVERT_EXPR is for a conversion to virtual base in 4960 an NSDMI, and should be re-evaluated when used in a constructor. */ 4961 #define CONVERT_EXPR_VBASE_PATH(NODE) \ 4962 TREE_LANG_FLAG_0 (CONVERT_EXPR_CHECK (NODE)) 4963 4964 /* True if SIZEOF_EXPR argument is type. */ 4965 #define SIZEOF_EXPR_TYPE_P(NODE) \ 4966 TREE_LANG_FLAG_0 (SIZEOF_EXPR_CHECK (NODE)) 4967 4968 /* True if the ALIGNOF_EXPR was spelled "alignof". */ 4969 #define ALIGNOF_EXPR_STD_P(NODE) \ 4970 TREE_LANG_FLAG_0 (ALIGNOF_EXPR_CHECK (NODE)) 4971 4972 /* An enumeration of the kind of tags that C++ accepts. */ 4973 enum tag_types { 4974 none_type = 0, /* Not a tag type. */ 4975 record_type, /* "struct" types. */ 4976 class_type, /* "class" types. */ 4977 union_type, /* "union" types. */ 4978 enum_type, /* "enum" types. */ 4979 typename_type, /* "typename" types. */ 4980 scope_type /* namespace or tagged type name followed by :: */ 4981 }; 4982 4983 /* The various kinds of lvalues we distinguish. */ 4984 enum cp_lvalue_kind_flags { 4985 clk_none = 0, /* Things that are not an lvalue. */ 4986 clk_ordinary = 1, /* An ordinary lvalue. */ 4987 clk_rvalueref = 2,/* An xvalue (rvalue formed using an rvalue reference) */ 4988 clk_class = 4, /* A prvalue of class or array type. */ 4989 clk_bitfield = 8, /* An lvalue for a bit-field. */ 4990 clk_packed = 16 /* An lvalue for a packed field. */ 4991 }; 4992 4993 /* This type is used for parameters and variables which hold 4994 combinations of the flags in enum cp_lvalue_kind_flags. */ 4995 typedef int cp_lvalue_kind; 4996 4997 /* Various kinds of template specialization, instantiation, etc. */ 4998 enum tmpl_spec_kind { 4999 tsk_none, /* Not a template at all. */ 5000 tsk_invalid_member_spec, /* An explicit member template 5001 specialization, but the enclosing 5002 classes have not all been explicitly 5003 specialized. */ 5004 tsk_invalid_expl_inst, /* An explicit instantiation containing 5005 template parameter lists. */ 5006 tsk_excessive_parms, /* A template declaration with too many 5007 template parameter lists. */ 5008 tsk_insufficient_parms, /* A template declaration with too few 5009 parameter lists. */ 5010 tsk_template, /* A template declaration. */ 5011 tsk_expl_spec, /* An explicit specialization. */ 5012 tsk_expl_inst /* An explicit instantiation. */ 5013 }; 5014 5015 /* The various kinds of access. BINFO_ACCESS depends on these being 5016 two bit quantities. The numerical values are important; they are 5017 used to initialize RTTI data structures, so changing them changes 5018 the ABI. */ 5019 enum access_kind { 5020 ak_none = 0, /* Inaccessible. */ 5021 ak_public = 1, /* Accessible, as a `public' thing. */ 5022 ak_protected = 2, /* Accessible, as a `protected' thing. */ 5023 ak_private = 3 /* Accessible, as a `private' thing. */ 5024 }; 5025 5026 /* The various kinds of special functions. If you add to this list, 5027 you should update special_function_p as well. */ 5028 enum special_function_kind { 5029 sfk_none = 0, /* Not a special function. This enumeral 5030 must have value zero; see 5031 special_function_p. */ 5032 sfk_constructor, /* A constructor. */ 5033 sfk_copy_constructor, /* A copy constructor. */ 5034 sfk_move_constructor, /* A move constructor. */ 5035 sfk_copy_assignment, /* A copy assignment operator. */ 5036 sfk_move_assignment, /* A move assignment operator. */ 5037 sfk_destructor, /* A destructor. */ 5038 sfk_complete_destructor, /* A destructor for complete objects. */ 5039 sfk_base_destructor, /* A destructor for base subobjects. */ 5040 sfk_deleting_destructor, /* A destructor for complete objects that 5041 deletes the object after it has been 5042 destroyed. */ 5043 sfk_conversion, /* A conversion operator. */ 5044 sfk_deduction_guide, /* A class template deduction guide. */ 5045 sfk_inheriting_constructor /* An inheriting constructor */ 5046 }; 5047 5048 /* The various kinds of linkage. From [basic.link], 5049 5050 A name is said to have linkage when it might denote the same 5051 object, reference, function, type, template, namespace or value 5052 as a name introduced in another scope: 5053 5054 -- When a name has external linkage, the entity it denotes can 5055 be referred to from scopes of other translation units or from 5056 other scopes of the same translation unit. 5057 5058 -- When a name has internal linkage, the entity it denotes can 5059 be referred to by names from other scopes in the same 5060 translation unit. 5061 5062 -- When a name has no linkage, the entity it denotes cannot be 5063 referred to by names from other scopes. */ 5064 5065 enum linkage_kind { 5066 lk_none, /* No linkage. */ 5067 lk_internal, /* Internal linkage. */ 5068 lk_external /* External linkage. */ 5069 }; 5070 5071 enum duration_kind { 5072 dk_static, 5073 dk_thread, 5074 dk_auto, 5075 dk_dynamic 5076 }; 5077 5078 /* Bitmask flags to control type substitution. */ 5079 enum tsubst_flags { 5080 tf_none = 0, /* nothing special */ 5081 tf_error = 1 << 0, /* give error messages */ 5082 tf_warning = 1 << 1, /* give warnings too */ 5083 tf_ignore_bad_quals = 1 << 2, /* ignore bad cvr qualifiers */ 5084 tf_keep_type_decl = 1 << 3, /* retain typedef type decls 5085 (make_typename_type use) */ 5086 tf_ptrmem_ok = 1 << 4, /* pointers to member ok (internal 5087 instantiate_type use) */ 5088 tf_user = 1 << 5, /* found template must be a user template 5089 (lookup_template_class use) */ 5090 tf_conv = 1 << 6, /* We are determining what kind of 5091 conversion might be permissible, 5092 not actually performing the 5093 conversion. */ 5094 tf_decltype = 1 << 7, /* We are the operand of decltype. 5095 Used to implement the special rules 5096 for calls in decltype (5.2.2/11). */ 5097 tf_partial = 1 << 8, /* Doing initial explicit argument 5098 substitution in fn_type_unification. */ 5099 tf_fndecl_type = 1 << 9, /* Substituting the type of a function 5100 declaration. */ 5101 tf_no_cleanup = 1 << 10, /* Do not build a cleanup 5102 (build_target_expr and friends) */ 5103 /* Convenient substitution flags combinations. */ 5104 tf_warning_or_error = tf_warning | tf_error 5105 }; 5106 5107 /* This type is used for parameters and variables which hold 5108 combinations of the flags in enum tsubst_flags. */ 5109 typedef int tsubst_flags_t; 5110 5111 /* The kind of checking we can do looking in a class hierarchy. */ 5112 enum base_access_flags { 5113 ba_any = 0, /* Do not check access, allow an ambiguous base, 5114 prefer a non-virtual base */ 5115 ba_unique = 1 << 0, /* Must be a unique base. */ 5116 ba_check_bit = 1 << 1, /* Check access. */ 5117 ba_check = ba_unique | ba_check_bit, 5118 ba_ignore_scope = 1 << 2 /* Ignore access allowed by local scope. */ 5119 }; 5120 5121 /* This type is used for parameters and variables which hold 5122 combinations of the flags in enum base_access_flags. */ 5123 typedef int base_access; 5124 5125 /* The various kinds of access check during parsing. */ 5126 enum deferring_kind { 5127 dk_no_deferred = 0, /* Check access immediately */ 5128 dk_deferred = 1, /* Deferred check */ 5129 dk_no_check = 2 /* No access check */ 5130 }; 5131 5132 /* The kind of base we can find, looking in a class hierarchy. 5133 Values <0 indicate we failed. */ 5134 enum base_kind { 5135 bk_inaccessible = -3, /* The base is inaccessible */ 5136 bk_ambig = -2, /* The base is ambiguous */ 5137 bk_not_base = -1, /* It is not a base */ 5138 bk_same_type = 0, /* It is the same type */ 5139 bk_proper_base = 1, /* It is a proper base */ 5140 bk_via_virtual = 2 /* It is a proper base, but via a virtual 5141 path. This might not be the canonical 5142 binfo. */ 5143 }; 5144 5145 /* Node for "pointer to (virtual) function". 5146 This may be distinct from ptr_type_node so gdb can distinguish them. */ 5147 #define vfunc_ptr_type_node vtable_entry_type 5148 5149 5150 /* For building calls to `delete'. */ 5151 extern GTY(()) tree integer_two_node; 5152 5153 /* The number of function bodies which we are currently processing. 5154 (Zero if we are at namespace scope, one inside the body of a 5155 function, two inside the body of a function in a local class, etc.) */ 5156 extern int function_depth; 5157 5158 /* Nonzero if we are inside eq_specializations, which affects comparison of 5159 PARM_DECLs in cp_tree_equal. */ 5160 extern int comparing_specializations; 5161 5162 /* In parser.c. */ 5163 5164 /* Nonzero if we are parsing an unevaluated operand: an operand to 5165 sizeof, typeof, or alignof. This is a count since operands to 5166 sizeof can be nested. */ 5167 5168 extern int cp_unevaluated_operand; 5169 5170 /* RAII class used to inhibit the evaluation of operands during parsing 5171 and template instantiation. Evaluation warnings are also inhibited. */ 5172 5173 struct cp_unevaluated 5174 { 5175 cp_unevaluated (); 5176 ~cp_unevaluated (); 5177 }; 5178 5179 /* in pt.c */ 5180 5181 /* These values are used for the `STRICT' parameter to type_unification and 5182 fn_type_unification. Their meanings are described with the 5183 documentation for fn_type_unification. */ 5184 5185 enum unification_kind_t { 5186 DEDUCE_CALL, 5187 DEDUCE_CONV, 5188 DEDUCE_EXACT 5189 }; 5190 5191 // An RAII class used to create a new pointer map for local 5192 // specializations. When the stack goes out of scope, the 5193 // previous pointer map is restored. 5194 enum lss_policy { lss_blank, lss_copy }; 5195 struct local_specialization_stack 5196 { 5197 local_specialization_stack (lss_policy = lss_blank); 5198 ~local_specialization_stack (); 5199 5200 hash_map<tree, tree> *saved; 5201 }; 5202 5203 /* in class.c */ 5204 5205 extern int current_class_depth; 5206 5207 /* An array of all local classes present in this translation unit, in 5208 declaration order. */ 5209 extern GTY(()) vec<tree, va_gc> *local_classes; 5210 5211 /* in decl.c */ 5212 5213 /* An array of static vars & fns. */ 5214 extern GTY(()) vec<tree, va_gc> *static_decls; 5215 5216 /* An array of vtable-needing types that have no key function, or have 5217 an emitted key function. */ 5218 extern GTY(()) vec<tree, va_gc> *keyed_classes; 5219 5220 /* Here's where we control how name mangling takes place. */ 5221 5222 /* Cannot use '$' up front, because this confuses gdb 5223 (names beginning with '$' are gdb-local identifiers). 5224 5225 Note that all forms in which the '$' is significant are long enough 5226 for direct indexing (meaning that if we know there is a '$' 5227 at a particular location, we can index into the string at 5228 any other location that provides distinguishing characters). */ 5229 5230 /* Define NO_DOT_IN_LABEL in your favorite tm file if your assembler 5231 doesn't allow '.' in symbol names. */ 5232 #ifndef NO_DOT_IN_LABEL 5233 5234 #define JOINER '.' 5235 5236 #define AUTO_TEMP_NAME "_.tmp_" 5237 #define VFIELD_BASE ".vf" 5238 #define VFIELD_NAME "_vptr." 5239 #define VFIELD_NAME_FORMAT "_vptr.%s" 5240 5241 #else /* NO_DOT_IN_LABEL */ 5242 5243 #ifndef NO_DOLLAR_IN_LABEL 5244 5245 #define JOINER '$' 5246 5247 #define AUTO_TEMP_NAME "_$tmp_" 5248 #define VFIELD_BASE "$vf" 5249 #define VFIELD_NAME "_vptr$" 5250 #define VFIELD_NAME_FORMAT "_vptr$%s" 5251 5252 #else /* NO_DOLLAR_IN_LABEL */ 5253 5254 #define AUTO_TEMP_NAME "__tmp_" 5255 #define TEMP_NAME_P(ID_NODE) \ 5256 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, \ 5257 sizeof (AUTO_TEMP_NAME) - 1)) 5258 #define VTABLE_NAME "__vt_" 5259 #define VTABLE_NAME_P(ID_NODE) \ 5260 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VTABLE_NAME, \ 5261 sizeof (VTABLE_NAME) - 1)) 5262 #define VFIELD_BASE "__vfb" 5263 #define VFIELD_NAME "__vptr_" 5264 #define VFIELD_NAME_P(ID_NODE) \ 5265 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, \ 5266 sizeof (VFIELD_NAME) - 1)) 5267 #define VFIELD_NAME_FORMAT "__vptr_%s" 5268 5269 #endif /* NO_DOLLAR_IN_LABEL */ 5270 #endif /* NO_DOT_IN_LABEL */ 5271 5272 #define LAMBDANAME_PREFIX "__lambda" 5273 #define LAMBDANAME_FORMAT LAMBDANAME_PREFIX "%d" 5274 5275 #define UDLIT_OP_ANSI_PREFIX "operator\"\"" 5276 #define UDLIT_OP_ANSI_FORMAT UDLIT_OP_ANSI_PREFIX "%s" 5277 #define UDLIT_OP_MANGLED_PREFIX "li" 5278 #define UDLIT_OP_MANGLED_FORMAT UDLIT_OP_MANGLED_PREFIX "%s" 5279 #define UDLIT_OPER_P(ID_NODE) \ 5280 (!strncmp (IDENTIFIER_POINTER (ID_NODE), \ 5281 UDLIT_OP_ANSI_PREFIX, \ 5282 sizeof (UDLIT_OP_ANSI_PREFIX) - 1)) 5283 #define UDLIT_OP_SUFFIX(ID_NODE) \ 5284 (IDENTIFIER_POINTER (ID_NODE) + sizeof (UDLIT_OP_ANSI_PREFIX) - 1) 5285 5286 #if !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) 5287 5288 #define VTABLE_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == 'v' \ 5289 && IDENTIFIER_POINTER (ID_NODE)[2] == 't' \ 5290 && IDENTIFIER_POINTER (ID_NODE)[3] == JOINER) 5291 5292 #define TEMP_NAME_P(ID_NODE) \ 5293 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, sizeof (AUTO_TEMP_NAME)-1)) 5294 #define VFIELD_NAME_P(ID_NODE) \ 5295 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, sizeof(VFIELD_NAME)-1)) 5296 5297 #endif /* !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) */ 5298 5299 5300 /* Nonzero if we're done parsing and into end-of-file activities. 5301 Two if we're done with front-end processing. */ 5302 5303 extern int at_eof; 5304 5305 /* True if note_mangling_alias should enqueue mangling aliases for 5306 later generation, rather than emitting them right away. */ 5307 5308 extern bool defer_mangling_aliases; 5309 5310 /* True if noexcept is part of the type (i.e. in C++17). */ 5311 5312 extern bool flag_noexcept_type; 5313 5314 /* A list of namespace-scope objects which have constructors or 5315 destructors which reside in the global scope. The decl is stored 5316 in the TREE_VALUE slot and the initializer is stored in the 5317 TREE_PURPOSE slot. */ 5318 extern GTY(()) tree static_aggregates; 5319 /* Likewise, for thread local storage. */ 5320 extern GTY(()) tree tls_aggregates; 5321 5322 enum overload_flags { NO_SPECIAL = 0, DTOR_FLAG, TYPENAME_FLAG }; 5323 5324 /* These are uses as bits in flags passed to various functions to 5325 control their behavior. Despite the LOOKUP_ prefix, many of these 5326 do not control name lookup. ??? Functions using these flags should 5327 probably be modified to accept explicit boolean flags for the 5328 behaviors relevant to them. */ 5329 /* Check for access violations. */ 5330 #define LOOKUP_PROTECT (1 << 0) 5331 #define LOOKUP_NORMAL (LOOKUP_PROTECT) 5332 /* Even if the function found by lookup is a virtual function, it 5333 should be called directly. */ 5334 #define LOOKUP_NONVIRTUAL (1 << 1) 5335 /* Non-converting (i.e., "explicit") constructors are not tried. This flag 5336 indicates that we are not performing direct-initialization. */ 5337 #define LOOKUP_ONLYCONVERTING (1 << 2) 5338 #define LOOKUP_IMPLICIT (LOOKUP_NORMAL | LOOKUP_ONLYCONVERTING) 5339 /* If a temporary is created, it should be created so that it lives 5340 as long as the current variable bindings; otherwise it only lives 5341 until the end of the complete-expression. It also forces 5342 direct-initialization in cases where other parts of the compiler 5343 have already generated a temporary, such as reference 5344 initialization and the catch parameter. */ 5345 #define DIRECT_BIND (1 << 3) 5346 /* We're performing a user-defined conversion, so more user-defined 5347 conversions are not permitted (only built-in conversions). */ 5348 #define LOOKUP_NO_CONVERSION (1 << 4) 5349 /* The user has explicitly called a destructor. (Therefore, we do 5350 not need to check that the object is non-NULL before calling the 5351 destructor.) */ 5352 #define LOOKUP_DESTRUCTOR (1 << 5) 5353 /* Do not permit references to bind to temporaries. */ 5354 #define LOOKUP_NO_TEMP_BIND (1 << 6) 5355 /* Do not accept objects, and possibly namespaces. */ 5356 #define LOOKUP_PREFER_TYPES (1 << 7) 5357 /* Do not accept objects, and possibly types. */ 5358 #define LOOKUP_PREFER_NAMESPACES (1 << 8) 5359 /* Accept types or namespaces. */ 5360 #define LOOKUP_PREFER_BOTH (LOOKUP_PREFER_TYPES | LOOKUP_PREFER_NAMESPACES) 5361 /* Return friend declarations and un-declared builtin functions. 5362 (Normally, these entities are registered in the symbol table, but 5363 not found by lookup.) */ 5364 #define LOOKUP_HIDDEN (LOOKUP_PREFER_NAMESPACES << 1) 5365 /* We're trying to treat an lvalue as an rvalue. */ 5366 #define LOOKUP_PREFER_RVALUE (LOOKUP_HIDDEN << 1) 5367 /* We're inside an init-list, so narrowing conversions are ill-formed. */ 5368 #define LOOKUP_NO_NARROWING (LOOKUP_PREFER_RVALUE << 1) 5369 /* We're looking up a constructor for list-initialization. */ 5370 #define LOOKUP_LIST_INIT_CTOR (LOOKUP_NO_NARROWING << 1) 5371 /* This is the first parameter of a copy constructor. */ 5372 #define LOOKUP_COPY_PARM (LOOKUP_LIST_INIT_CTOR << 1) 5373 /* We only want to consider list constructors. */ 5374 #define LOOKUP_LIST_ONLY (LOOKUP_COPY_PARM << 1) 5375 /* Return after determining which function to call and checking access. 5376 Used by sythesized_method_walk to determine which functions will 5377 be called to initialize subobjects, in order to determine exception 5378 specification and possible implicit delete. 5379 This is kind of a hack, but exiting early avoids problems with trying 5380 to perform argument conversions when the class isn't complete yet. */ 5381 #define LOOKUP_SPECULATIVE (LOOKUP_LIST_ONLY << 1) 5382 /* Used by calls from defaulted functions to limit the overload set to avoid 5383 cycles trying to declare them (core issue 1092). */ 5384 #define LOOKUP_DEFAULTED (LOOKUP_SPECULATIVE << 1) 5385 /* Used in calls to store_init_value to suppress its usual call to 5386 digest_init. */ 5387 #define LOOKUP_ALREADY_DIGESTED (LOOKUP_DEFAULTED << 1) 5388 /* An instantiation with explicit template arguments. */ 5389 #define LOOKUP_EXPLICIT_TMPL_ARGS (LOOKUP_ALREADY_DIGESTED << 1) 5390 /* Like LOOKUP_NO_TEMP_BIND, but also prevent binding to xvalues. */ 5391 #define LOOKUP_NO_RVAL_BIND (LOOKUP_EXPLICIT_TMPL_ARGS << 1) 5392 /* Used by case_conversion to disregard non-integral conversions. */ 5393 #define LOOKUP_NO_NON_INTEGRAL (LOOKUP_NO_RVAL_BIND << 1) 5394 /* Used for delegating constructors in order to diagnose self-delegation. */ 5395 #define LOOKUP_DELEGATING_CONS (LOOKUP_NO_NON_INTEGRAL << 1) 5396 5397 #define LOOKUP_NAMESPACES_ONLY(F) \ 5398 (((F) & LOOKUP_PREFER_NAMESPACES) && !((F) & LOOKUP_PREFER_TYPES)) 5399 #define LOOKUP_TYPES_ONLY(F) \ 5400 (!((F) & LOOKUP_PREFER_NAMESPACES) && ((F) & LOOKUP_PREFER_TYPES)) 5401 #define LOOKUP_QUALIFIERS_ONLY(F) ((F) & LOOKUP_PREFER_BOTH) 5402 5403 5404 /* These flags are used by the conversion code. 5405 CONV_IMPLICIT : Perform implicit conversions (standard and user-defined). 5406 CONV_STATIC : Perform the explicit conversions for static_cast. 5407 CONV_CONST : Perform the explicit conversions for const_cast. 5408 CONV_REINTERPRET: Perform the explicit conversions for reinterpret_cast. 5409 CONV_PRIVATE : Perform upcasts to private bases. 5410 CONV_FORCE_TEMP : Require a new temporary when converting to the same 5411 aggregate type. */ 5412 5413 #define CONV_IMPLICIT 1 5414 #define CONV_STATIC 2 5415 #define CONV_CONST 4 5416 #define CONV_REINTERPRET 8 5417 #define CONV_PRIVATE 16 5418 /* #define CONV_NONCONVERTING 32 */ 5419 #define CONV_FORCE_TEMP 64 5420 #define CONV_FOLD 128 5421 #define CONV_OLD_CONVERT (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \ 5422 | CONV_REINTERPRET) 5423 #define CONV_C_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \ 5424 | CONV_REINTERPRET | CONV_PRIVATE | CONV_FORCE_TEMP) 5425 #define CONV_BACKEND_CONVERT (CONV_OLD_CONVERT | CONV_FOLD) 5426 5427 /* Used by build_expr_type_conversion to indicate which types are 5428 acceptable as arguments to the expression under consideration. */ 5429 5430 #define WANT_INT 1 /* integer types, including bool */ 5431 #define WANT_FLOAT 2 /* floating point types */ 5432 #define WANT_ENUM 4 /* enumerated types */ 5433 #define WANT_POINTER 8 /* pointer types */ 5434 #define WANT_NULL 16 /* null pointer constant */ 5435 #define WANT_VECTOR_OR_COMPLEX 32 /* vector or complex types */ 5436 #define WANT_ARITH (WANT_INT | WANT_FLOAT | WANT_VECTOR_OR_COMPLEX) 5437 5438 /* Used with comptypes, and related functions, to guide type 5439 comparison. */ 5440 5441 #define COMPARE_STRICT 0 /* Just check if the types are the 5442 same. */ 5443 #define COMPARE_BASE 1 /* Check to see if the second type is 5444 derived from the first. */ 5445 #define COMPARE_DERIVED 2 /* Like COMPARE_BASE, but in 5446 reverse. */ 5447 #define COMPARE_REDECLARATION 4 /* The comparison is being done when 5448 another declaration of an existing 5449 entity is seen. */ 5450 #define COMPARE_STRUCTURAL 8 /* The comparison is intended to be 5451 structural. The actual comparison 5452 will be identical to 5453 COMPARE_STRICT. */ 5454 5455 /* Used with start function. */ 5456 #define SF_DEFAULT 0 /* No flags. */ 5457 #define SF_PRE_PARSED 1 /* The function declaration has 5458 already been parsed. */ 5459 #define SF_INCLASS_INLINE 2 /* The function is an inline, defined 5460 in the class body. */ 5461 5462 /* Used with start_decl's initialized parameter. */ 5463 #define SD_UNINITIALIZED 0 5464 #define SD_INITIALIZED 1 5465 #define SD_DEFAULTED 2 5466 #define SD_DELETED 3 5467 5468 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, or if TYPE2 5469 is derived from TYPE1, or if TYPE2 is a pointer (reference) to a 5470 class derived from the type pointed to (referred to) by TYPE1. */ 5471 #define same_or_base_type_p(TYPE1, TYPE2) \ 5472 comptypes ((TYPE1), (TYPE2), COMPARE_BASE) 5473 5474 /* These macros are used to access a TEMPLATE_PARM_INDEX. */ 5475 #define TEMPLATE_PARM_INDEX_CAST(NODE) \ 5476 ((template_parm_index*)TEMPLATE_PARM_INDEX_CHECK (NODE)) 5477 #define TEMPLATE_PARM_IDX(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->index) 5478 #define TEMPLATE_PARM_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->level) 5479 #define TEMPLATE_PARM_DESCENDANTS(NODE) (TREE_CHAIN (NODE)) 5480 #define TEMPLATE_PARM_ORIG_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->orig_level) 5481 #define TEMPLATE_PARM_DECL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->decl) 5482 #define TEMPLATE_PARM_PARAMETER_PACK(NODE) \ 5483 (TREE_LANG_FLAG_0 (TEMPLATE_PARM_INDEX_CHECK (NODE))) 5484 5485 /* These macros are for accessing the fields of TEMPLATE_TYPE_PARM, 5486 TEMPLATE_TEMPLATE_PARM and BOUND_TEMPLATE_TEMPLATE_PARM nodes. */ 5487 #define TEMPLATE_TYPE_PARM_INDEX(NODE) \ 5488 (TYPE_VALUES_RAW (TREE_CHECK3 ((NODE), TEMPLATE_TYPE_PARM, \ 5489 TEMPLATE_TEMPLATE_PARM, \ 5490 BOUND_TEMPLATE_TEMPLATE_PARM))) 5491 #define TEMPLATE_TYPE_IDX(NODE) \ 5492 (TEMPLATE_PARM_IDX (TEMPLATE_TYPE_PARM_INDEX (NODE))) 5493 #define TEMPLATE_TYPE_LEVEL(NODE) \ 5494 (TEMPLATE_PARM_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE))) 5495 #define TEMPLATE_TYPE_ORIG_LEVEL(NODE) \ 5496 (TEMPLATE_PARM_ORIG_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE))) 5497 #define TEMPLATE_TYPE_DECL(NODE) \ 5498 (TEMPLATE_PARM_DECL (TEMPLATE_TYPE_PARM_INDEX (NODE))) 5499 #define TEMPLATE_TYPE_PARAMETER_PACK(NODE) \ 5500 (TEMPLATE_PARM_PARAMETER_PACK (TEMPLATE_TYPE_PARM_INDEX (NODE))) 5501 5502 /* For a C++17 class deduction placeholder, the template it represents. */ 5503 #define CLASS_PLACEHOLDER_TEMPLATE(NODE) \ 5504 (DECL_INITIAL (TYPE_NAME (TEMPLATE_TYPE_PARM_CHECK (NODE)))) 5505 5506 /* Contexts in which auto deduction occurs. These flags are 5507 used to control diagnostics in do_auto_deduction. */ 5508 5509 enum auto_deduction_context 5510 { 5511 adc_unspecified, /* Not given */ 5512 adc_variable_type, /* Variable initializer deduction */ 5513 adc_return_type, /* Return type deduction */ 5514 adc_unify, /* Template argument deduction */ 5515 adc_requirement, /* Argument deduction constraint */ 5516 adc_decomp_type /* Decomposition declaration initializer deduction */ 5517 }; 5518 5519 /* True if this type-parameter belongs to a class template, used by C++17 5520 class template argument deduction. */ 5521 #define TEMPLATE_TYPE_PARM_FOR_CLASS(NODE) \ 5522 (TREE_LANG_FLAG_0 (TEMPLATE_TYPE_PARM_CHECK (NODE))) 5523 5524 /* True iff this TEMPLATE_TYPE_PARM represents decltype(auto). */ 5525 #define AUTO_IS_DECLTYPE(NODE) \ 5526 (TYPE_LANG_FLAG_5 (TEMPLATE_TYPE_PARM_CHECK (NODE))) 5527 5528 /* These constants can used as bit flags in the process of tree formatting. 5529 5530 TFF_PLAIN_IDENTIFIER: unqualified part of a name. 5531 TFF_SCOPE: include the class and namespace scope of the name. 5532 TFF_CHASE_TYPEDEF: print the original type-id instead of the typedef-name. 5533 TFF_DECL_SPECIFIERS: print decl-specifiers. 5534 TFF_CLASS_KEY_OR_ENUM: precede a class-type name (resp. enum name) with 5535 a class-key (resp. `enum'). 5536 TFF_RETURN_TYPE: include function return type. 5537 TFF_FUNCTION_DEFAULT_ARGUMENTS: include function default parameter values. 5538 TFF_EXCEPTION_SPECIFICATION: show function exception specification. 5539 TFF_TEMPLATE_HEADER: show the template<...> header in a 5540 template-declaration. 5541 TFF_TEMPLATE_NAME: show only template-name. 5542 TFF_EXPR_IN_PARENS: parenthesize expressions. 5543 TFF_NO_FUNCTION_ARGUMENTS: don't show function arguments. 5544 TFF_UNQUALIFIED_NAME: do not print the qualifying scope of the 5545 top-level entity. 5546 TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS: do not omit template arguments 5547 identical to their defaults. 5548 TFF_NO_TEMPLATE_BINDINGS: do not print information about the template 5549 arguments for a function template specialization. 5550 TFF_POINTER: we are printing a pointer type. */ 5551 5552 #define TFF_PLAIN_IDENTIFIER (0) 5553 #define TFF_SCOPE (1) 5554 #define TFF_CHASE_TYPEDEF (1 << 1) 5555 #define TFF_DECL_SPECIFIERS (1 << 2) 5556 #define TFF_CLASS_KEY_OR_ENUM (1 << 3) 5557 #define TFF_RETURN_TYPE (1 << 4) 5558 #define TFF_FUNCTION_DEFAULT_ARGUMENTS (1 << 5) 5559 #define TFF_EXCEPTION_SPECIFICATION (1 << 6) 5560 #define TFF_TEMPLATE_HEADER (1 << 7) 5561 #define TFF_TEMPLATE_NAME (1 << 8) 5562 #define TFF_EXPR_IN_PARENS (1 << 9) 5563 #define TFF_NO_FUNCTION_ARGUMENTS (1 << 10) 5564 #define TFF_UNQUALIFIED_NAME (1 << 11) 5565 #define TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS (1 << 12) 5566 #define TFF_NO_TEMPLATE_BINDINGS (1 << 13) 5567 #define TFF_POINTER (1 << 14) 5568 5569 /* Returns the TEMPLATE_DECL associated to a TEMPLATE_TEMPLATE_PARM 5570 node. */ 5571 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_DECL(NODE) \ 5572 ((TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM) \ 5573 ? TYPE_TI_TEMPLATE (NODE) \ 5574 : TYPE_NAME (NODE)) 5575 5576 /* in lex.c */ 5577 5578 extern void init_reswords (void); 5579 5580 /* Various flags for the overloaded operator information. */ 5581 enum ovl_op_flags 5582 { 5583 OVL_OP_FLAG_NONE = 0, /* Don't care. */ 5584 OVL_OP_FLAG_UNARY = 1, /* Is unary. */ 5585 OVL_OP_FLAG_BINARY = 2, /* Is binary. */ 5586 OVL_OP_FLAG_AMBIARY = 3, /* May be unary or binary. */ 5587 OVL_OP_FLAG_ALLOC = 4, /* operator new or delete. */ 5588 OVL_OP_FLAG_DELETE = 1, /* operator delete. */ 5589 OVL_OP_FLAG_VEC = 2 /* vector new or delete. */ 5590 }; 5591 5592 /* Compressed operator codes. Order is determined by operators.def 5593 and does not match that of tree_codes. */ 5594 enum ovl_op_code 5595 { 5596 OVL_OP_ERROR_MARK, 5597 OVL_OP_NOP_EXPR, 5598 #define DEF_OPERATOR(NAME, CODE, MANGLING, FLAGS) OVL_OP_##CODE, 5599 #define DEF_ASSN_OPERATOR(NAME, CODE, MANGLING) /* NOTHING */ 5600 #include "operators.def" 5601 OVL_OP_MAX 5602 }; 5603 5604 struct GTY(()) ovl_op_info_t { 5605 /* The IDENTIFIER_NODE for the operator. */ 5606 tree identifier; 5607 /* The name of the operator. */ 5608 const char *name; 5609 /* The mangled name of the operator. */ 5610 const char *mangled_name; 5611 /* The (regular) tree code. */ 5612 enum tree_code tree_code : 16; 5613 /* The (compressed) operator code. */ 5614 enum ovl_op_code ovl_op_code : 8; 5615 /* The ovl_op_flags of the operator */ 5616 unsigned flags : 8; 5617 }; 5618 5619 /* Overloaded operator info indexed by ass_op_p & ovl_op_code. */ 5620 extern GTY(()) ovl_op_info_t ovl_op_info[2][OVL_OP_MAX]; 5621 /* Mapping from tree_codes to ovl_op_codes. */ 5622 extern GTY(()) unsigned char ovl_op_mapping[MAX_TREE_CODES]; 5623 /* Mapping for ambi-ary operators from the binary to the unary. */ 5624 extern GTY(()) unsigned char ovl_op_alternate[OVL_OP_MAX]; 5625 5626 /* Given an ass_op_p boolean and a tree code, return a pointer to its 5627 overloaded operator info. Tree codes for non-overloaded operators 5628 map to the error-operator. */ 5629 #define OVL_OP_INFO(IS_ASS_P, TREE_CODE) \ 5630 (&ovl_op_info[(IS_ASS_P) != 0][ovl_op_mapping[(TREE_CODE)]]) 5631 /* Overloaded operator info for an identifier for which 5632 IDENTIFIER_OVL_OP_P is true. */ 5633 #define IDENTIFIER_OVL_OP_INFO(NODE) \ 5634 (&ovl_op_info[IDENTIFIER_KIND_BIT_0 (NODE)][IDENTIFIER_CP_INDEX (NODE)]) 5635 #define IDENTIFIER_OVL_OP_FLAGS(NODE) \ 5636 (IDENTIFIER_OVL_OP_INFO (NODE)->flags) 5637 5638 /* A type-qualifier, or bitmask therefore, using the TYPE_QUAL 5639 constants. */ 5640 5641 typedef int cp_cv_quals; 5642 5643 /* Non-static member functions have an optional virt-specifier-seq. 5644 There is a VIRT_SPEC value for each virt-specifier. 5645 They can be combined by bitwise-or to form the complete set of 5646 virt-specifiers for a member function. */ 5647 enum virt_specifier 5648 { 5649 VIRT_SPEC_UNSPECIFIED = 0x0, 5650 VIRT_SPEC_FINAL = 0x1, 5651 VIRT_SPEC_OVERRIDE = 0x2 5652 }; 5653 5654 /* A type-qualifier, or bitmask therefore, using the VIRT_SPEC 5655 constants. */ 5656 5657 typedef int cp_virt_specifiers; 5658 5659 /* Wherever there is a function-cv-qual, there could also be a ref-qualifier: 5660 5661 [dcl.fct] 5662 The return type, the parameter-type-list, the ref-qualifier, and 5663 the cv-qualifier-seq, but not the default arguments or the exception 5664 specification, are part of the function type. 5665 5666 REF_QUAL_NONE Ordinary member function with no ref-qualifier 5667 REF_QUAL_LVALUE Member function with the &-ref-qualifier 5668 REF_QUAL_RVALUE Member function with the &&-ref-qualifier */ 5669 5670 enum cp_ref_qualifier { 5671 REF_QUAL_NONE = 0, 5672 REF_QUAL_LVALUE = 1, 5673 REF_QUAL_RVALUE = 2 5674 }; 5675 5676 /* A storage class. */ 5677 5678 enum cp_storage_class { 5679 /* sc_none must be zero so that zeroing a cp_decl_specifier_seq 5680 sets the storage_class field to sc_none. */ 5681 sc_none = 0, 5682 sc_auto, 5683 sc_register, 5684 sc_static, 5685 sc_extern, 5686 sc_mutable 5687 }; 5688 5689 /* An individual decl-specifier. This is used to index the array of 5690 locations for the declspecs in struct cp_decl_specifier_seq 5691 below. */ 5692 5693 enum cp_decl_spec { 5694 ds_first, 5695 ds_signed = ds_first, 5696 ds_unsigned, 5697 ds_short, 5698 ds_long, 5699 ds_const, 5700 ds_volatile, 5701 ds_restrict, 5702 ds_inline, 5703 ds_virtual, 5704 ds_explicit, 5705 ds_friend, 5706 ds_typedef, 5707 ds_alias, 5708 ds_constexpr, 5709 ds_complex, 5710 ds_thread, 5711 ds_type_spec, 5712 ds_redefined_builtin_type_spec, 5713 ds_attribute, 5714 ds_std_attribute, 5715 ds_storage_class, 5716 ds_long_long, 5717 ds_concept, 5718 ds_last /* This enumerator must always be the last one. */ 5719 }; 5720 5721 /* A decl-specifier-seq. */ 5722 5723 struct cp_decl_specifier_seq { 5724 /* An array of locations for the declaration sepecifiers, indexed by 5725 enum cp_decl_spec_word. */ 5726 source_location locations[ds_last]; 5727 /* The primary type, if any, given by the decl-specifier-seq. 5728 Modifiers, like "short", "const", and "unsigned" are not 5729 reflected here. This field will be a TYPE, unless a typedef-name 5730 was used, in which case it will be a TYPE_DECL. */ 5731 tree type; 5732 /* The attributes, if any, provided with the specifier sequence. */ 5733 tree attributes; 5734 /* The c++11 attributes that follows the type specifier. */ 5735 tree std_attributes; 5736 /* If non-NULL, a built-in type that the user attempted to redefine 5737 to some other type. */ 5738 tree redefined_builtin_type; 5739 /* The storage class specified -- or sc_none if no storage class was 5740 explicitly specified. */ 5741 cp_storage_class storage_class; 5742 /* For the __intN declspec, this stores the index into the int_n_* arrays. */ 5743 int int_n_idx; 5744 /* True iff TYPE_SPEC defines a class or enum. */ 5745 BOOL_BITFIELD type_definition_p : 1; 5746 /* True iff multiple types were (erroneously) specified for this 5747 decl-specifier-seq. */ 5748 BOOL_BITFIELD multiple_types_p : 1; 5749 /* True iff multiple storage classes were (erroneously) specified 5750 for this decl-specifier-seq or a combination of a storage class 5751 with a typedef specifier. */ 5752 BOOL_BITFIELD conflicting_specifiers_p : 1; 5753 /* True iff at least one decl-specifier was found. */ 5754 BOOL_BITFIELD any_specifiers_p : 1; 5755 /* True iff at least one type-specifier was found. */ 5756 BOOL_BITFIELD any_type_specifiers_p : 1; 5757 /* True iff "int" was explicitly provided. */ 5758 BOOL_BITFIELD explicit_int_p : 1; 5759 /* True iff "__intN" was explicitly provided. */ 5760 BOOL_BITFIELD explicit_intN_p : 1; 5761 /* True iff "char" was explicitly provided. */ 5762 BOOL_BITFIELD explicit_char_p : 1; 5763 /* True iff ds_thread is set for __thread, not thread_local. */ 5764 BOOL_BITFIELD gnu_thread_keyword_p : 1; 5765 /* True iff the type is a decltype. */ 5766 BOOL_BITFIELD decltype_p : 1; 5767 }; 5768 5769 /* The various kinds of declarators. */ 5770 5771 enum cp_declarator_kind { 5772 cdk_id, 5773 cdk_function, 5774 cdk_array, 5775 cdk_pointer, 5776 cdk_reference, 5777 cdk_ptrmem, 5778 cdk_decomp, 5779 cdk_error 5780 }; 5781 5782 /* A declarator. */ 5783 5784 typedef struct cp_declarator cp_declarator; 5785 5786 typedef struct cp_parameter_declarator cp_parameter_declarator; 5787 5788 /* A parameter, before it has been semantically analyzed. */ 5789 struct cp_parameter_declarator { 5790 /* The next parameter, or NULL_TREE if none. */ 5791 cp_parameter_declarator *next; 5792 /* The decl-specifiers-seq for the parameter. */ 5793 cp_decl_specifier_seq decl_specifiers; 5794 /* The declarator for the parameter. */ 5795 cp_declarator *declarator; 5796 /* The default-argument expression, or NULL_TREE, if none. */ 5797 tree default_argument; 5798 /* True iff this is a template parameter pack. */ 5799 bool template_parameter_pack_p; 5800 /* Location within source. */ 5801 location_t loc; 5802 }; 5803 5804 /* A declarator. */ 5805 struct cp_declarator { 5806 /* The kind of declarator. */ 5807 ENUM_BITFIELD (cp_declarator_kind) kind : 4; 5808 /* Whether we parsed an ellipsis (`...') just before the declarator, 5809 to indicate this is a parameter pack. */ 5810 BOOL_BITFIELD parameter_pack_p : 1; 5811 /* If this declarator is parenthesized, this the open-paren. It is 5812 UNKNOWN_LOCATION when not parenthesized. */ 5813 location_t parenthesized; 5814 5815 location_t id_loc; /* Currently only set for cdk_id, cdk_decomp and 5816 cdk_function. */ 5817 /* GNU Attributes that apply to this declarator. If the declarator 5818 is a pointer or a reference, these attribute apply to the type 5819 pointed to. */ 5820 tree attributes; 5821 /* Standard C++11 attributes that apply to this declarator. If the 5822 declarator is a pointer or a reference, these attributes apply 5823 to the pointer, rather than to the type pointed to. */ 5824 tree std_attributes; 5825 /* For all but cdk_id, cdk_decomp and cdk_error, the contained declarator. 5826 For cdk_id, cdk_decomp and cdk_error, guaranteed to be NULL. */ 5827 cp_declarator *declarator; 5828 union { 5829 /* For identifiers. */ 5830 struct { 5831 /* If non-NULL, the qualifying scope (a NAMESPACE_DECL or 5832 *_TYPE) for this identifier. */ 5833 tree qualifying_scope; 5834 /* The unqualified name of the entity -- an IDENTIFIER_NODE, 5835 BIT_NOT_EXPR, or TEMPLATE_ID_EXPR. */ 5836 tree unqualified_name; 5837 /* If this is the name of a function, what kind of special 5838 function (if any). */ 5839 special_function_kind sfk; 5840 } id; 5841 /* For functions. */ 5842 struct { 5843 /* The parameters to the function as a TREE_LIST of decl/default. */ 5844 tree parameters; 5845 /* The cv-qualifiers for the function. */ 5846 cp_cv_quals qualifiers; 5847 /* The virt-specifiers for the function. */ 5848 cp_virt_specifiers virt_specifiers; 5849 /* The ref-qualifier for the function. */ 5850 cp_ref_qualifier ref_qualifier; 5851 /* The transaction-safety qualifier for the function. */ 5852 tree tx_qualifier; 5853 /* The exception-specification for the function. */ 5854 tree exception_specification; 5855 /* The late-specified return type, if any. */ 5856 tree late_return_type; 5857 /* The trailing requires-clause, if any. */ 5858 tree requires_clause; 5859 } function; 5860 /* For arrays. */ 5861 struct { 5862 /* The bounds to the array. */ 5863 tree bounds; 5864 } array; 5865 /* For cdk_pointer and cdk_ptrmem. */ 5866 struct { 5867 /* The cv-qualifiers for the pointer. */ 5868 cp_cv_quals qualifiers; 5869 /* For cdk_ptrmem, the class type containing the member. */ 5870 tree class_type; 5871 } pointer; 5872 /* For cdk_reference */ 5873 struct { 5874 /* The cv-qualifiers for the reference. These qualifiers are 5875 only used to diagnose ill-formed code. */ 5876 cp_cv_quals qualifiers; 5877 /* Whether this is an rvalue reference */ 5878 bool rvalue_ref; 5879 } reference; 5880 } u; 5881 }; 5882 5883 /* A level of template instantiation. */ 5884 struct GTY((chain_next ("%h.next"))) tinst_level { 5885 /* The immediately deeper level in the chain. */ 5886 struct tinst_level *next; 5887 5888 /* The original node. TLDCL can be a DECL (for a function or static 5889 data member), a TYPE (for a class), depending on what we were 5890 asked to instantiate, or a TREE_LIST with the template as PURPOSE 5891 and the template args as VALUE, if we are substituting for 5892 overload resolution. In all these cases, TARGS is NULL. 5893 However, to avoid creating TREE_LIST objects for substitutions if 5894 we can help, we store PURPOSE and VALUE in TLDCL and TARGS, 5895 respectively. So TLDCL stands for TREE_LIST or DECL (the 5896 template is a DECL too), whereas TARGS stands for the template 5897 arguments. */ 5898 tree tldcl, targs; 5899 5900 private: 5901 /* Return TRUE iff the original node is a split list. */ 5902 bool split_list_p () const { return targs; } 5903 5904 /* Return TRUE iff the original node is a TREE_LIST object. */ 5905 bool tree_list_p () const 5906 { 5907 return !split_list_p () && TREE_CODE (tldcl) == TREE_LIST; 5908 } 5909 5910 /* Return TRUE iff the original node is not a list, split or not. */ 5911 bool not_list_p () const 5912 { 5913 return !split_list_p () && !tree_list_p (); 5914 } 5915 5916 /* Convert (in place) the original node from a split list to a 5917 TREE_LIST. */ 5918 tree to_list (); 5919 5920 public: 5921 /* Release storage for OBJ and node, if it's a TREE_LIST. */ 5922 static void free (tinst_level *obj); 5923 5924 /* Return TRUE iff the original node is a list, split or not. */ 5925 bool list_p () const { return !not_list_p (); } 5926 5927 /* Return the original node; if it's a split list, make it a 5928 TREE_LIST first, so that it can be returned as a single tree 5929 object. */ 5930 tree get_node () { 5931 if (!split_list_p ()) return tldcl; 5932 else return to_list (); 5933 } 5934 5935 /* Return the original node if it's a DECL or a TREE_LIST, but do 5936 NOT convert a split list to a TREE_LIST: return NULL instead. */ 5937 tree maybe_get_node () const { 5938 if (!split_list_p ()) return tldcl; 5939 else return NULL_TREE; 5940 } 5941 5942 /* The location where the template is instantiated. */ 5943 location_t locus; 5944 5945 /* errorcount + sorrycount when we pushed this level. */ 5946 unsigned short errors; 5947 5948 /* Count references to this object. If refcount reaches 5949 refcount_infinity value, we don't increment or decrement the 5950 refcount anymore, as the refcount isn't accurate anymore. 5951 The object can be still garbage collected if unreferenced from 5952 anywhere, which might keep referenced objects referenced longer than 5953 otherwise necessary. Hitting the infinity is rare though. */ 5954 unsigned short refcount; 5955 5956 /* Infinity value for the above refcount. */ 5957 static const unsigned short refcount_infinity = (unsigned short) ~0; 5958 }; 5959 5960 bool decl_spec_seq_has_spec_p (const cp_decl_specifier_seq *, cp_decl_spec); 5961 5962 /* Return the type of the `this' parameter of FNTYPE. */ 5963 5964 inline tree 5965 type_of_this_parm (const_tree fntype) 5966 { 5967 function_args_iterator iter; 5968 gcc_assert (TREE_CODE (fntype) == METHOD_TYPE); 5969 function_args_iter_init (&iter, fntype); 5970 return function_args_iter_cond (&iter); 5971 } 5972 5973 /* Return the class of the `this' parameter of FNTYPE. */ 5974 5975 inline tree 5976 class_of_this_parm (const_tree fntype) 5977 { 5978 return TREE_TYPE (type_of_this_parm (fntype)); 5979 } 5980 5981 /* True iff T is a variable template declaration. */ 5982 inline bool 5983 variable_template_p (tree t) 5984 { 5985 if (TREE_CODE (t) != TEMPLATE_DECL) 5986 return false; 5987 if (!PRIMARY_TEMPLATE_P (t)) 5988 return false; 5989 if (tree r = DECL_TEMPLATE_RESULT (t)) 5990 return VAR_P (r); 5991 return false; 5992 } 5993 5994 /* True iff T is a variable concept definition. That is, T is 5995 a variable template declared with the concept specifier. */ 5996 inline bool 5997 variable_concept_p (tree t) 5998 { 5999 if (TREE_CODE (t) != TEMPLATE_DECL) 6000 return false; 6001 if (tree r = DECL_TEMPLATE_RESULT (t)) 6002 return VAR_P (r) && DECL_DECLARED_CONCEPT_P (r); 6003 return false; 6004 } 6005 6006 /* True iff T is a concept definition. That is, T is a variable or function 6007 template declared with the concept specifier. */ 6008 inline bool 6009 concept_template_p (tree t) 6010 { 6011 if (TREE_CODE (t) != TEMPLATE_DECL) 6012 return false; 6013 if (tree r = DECL_TEMPLATE_RESULT (t)) 6014 return VAR_OR_FUNCTION_DECL_P (r) && DECL_DECLARED_CONCEPT_P (r); 6015 return false; 6016 } 6017 6018 /* A parameter list indicating for a function with no parameters, 6019 e.g "int f(void)". */ 6020 extern cp_parameter_declarator *no_parameters; 6021 6022 /* Various dump ids. */ 6023 extern int class_dump_id; 6024 extern int raw_dump_id; 6025 6026 /* in call.c */ 6027 extern bool check_dtor_name (tree, tree); 6028 int magic_varargs_p (tree); 6029 6030 extern tree build_conditional_expr (location_t, tree, tree, tree, 6031 tsubst_flags_t); 6032 extern tree build_addr_func (tree, tsubst_flags_t); 6033 extern void set_flags_from_callee (tree); 6034 extern tree build_call_a (tree, int, tree*); 6035 extern tree build_call_n (tree, int, ...); 6036 extern bool null_ptr_cst_p (tree); 6037 extern bool null_member_pointer_value_p (tree); 6038 extern bool sufficient_parms_p (const_tree); 6039 extern tree type_decays_to (tree); 6040 extern tree extract_call_expr (tree); 6041 extern tree build_user_type_conversion (tree, tree, int, 6042 tsubst_flags_t); 6043 extern tree build_new_function_call (tree, vec<tree, va_gc> **, 6044 tsubst_flags_t); 6045 extern tree build_operator_new_call (tree, vec<tree, va_gc> **, 6046 tree *, tree *, tree, tree, 6047 tree *, tsubst_flags_t); 6048 extern tree build_new_method_call (tree, tree, 6049 vec<tree, va_gc> **, tree, 6050 int, tree *, tsubst_flags_t); 6051 extern tree build_special_member_call (tree, tree, 6052 vec<tree, va_gc> **, 6053 tree, int, tsubst_flags_t); 6054 extern tree build_new_op (location_t, enum tree_code, 6055 int, tree, tree, tree, tree *, 6056 tsubst_flags_t); 6057 extern tree build_op_call (tree, vec<tree, va_gc> **, 6058 tsubst_flags_t); 6059 extern bool aligned_allocation_fn_p (tree); 6060 extern bool usual_deallocation_fn_p (tree); 6061 extern tree build_op_delete_call (enum tree_code, tree, tree, 6062 bool, tree, tree, 6063 tsubst_flags_t); 6064 extern bool can_convert (tree, tree, tsubst_flags_t); 6065 extern bool can_convert_standard (tree, tree, tsubst_flags_t); 6066 extern bool can_convert_arg (tree, tree, tree, int, 6067 tsubst_flags_t); 6068 extern bool can_convert_arg_bad (tree, tree, tree, int, 6069 tsubst_flags_t); 6070 extern location_t get_fndecl_argument_location (tree, int); 6071 6072 6073 /* A class for recording information about access failures (e.g. private 6074 fields), so that we can potentially supply a fix-it hint about 6075 an accessor (from a context in which the constness of the object 6076 is known). */ 6077 6078 class access_failure_info 6079 { 6080 public: 6081 access_failure_info () : m_was_inaccessible (false), m_basetype_path (NULL_TREE), 6082 m_field_decl (NULL_TREE) {} 6083 6084 void record_access_failure (tree basetype_path, tree field_decl); 6085 void maybe_suggest_accessor (bool const_p) const; 6086 6087 private: 6088 bool m_was_inaccessible; 6089 tree m_basetype_path; 6090 tree m_field_decl; 6091 }; 6092 6093 extern bool enforce_access (tree, tree, tree, 6094 tsubst_flags_t, 6095 access_failure_info *afi = NULL); 6096 extern void push_defarg_context (tree); 6097 extern void pop_defarg_context (void); 6098 extern tree convert_default_arg (tree, tree, tree, int, 6099 tsubst_flags_t); 6100 extern tree convert_arg_to_ellipsis (tree, tsubst_flags_t); 6101 extern tree build_x_va_arg (source_location, tree, tree); 6102 extern tree cxx_type_promotes_to (tree); 6103 extern tree type_passed_as (tree); 6104 extern tree convert_for_arg_passing (tree, tree, tsubst_flags_t); 6105 extern bool is_properly_derived_from (tree, tree); 6106 extern tree initialize_reference (tree, tree, int, 6107 tsubst_flags_t); 6108 extern tree extend_ref_init_temps (tree, tree, vec<tree, va_gc>**); 6109 extern tree make_temporary_var_for_ref_to_temp (tree, tree); 6110 extern bool type_has_extended_temps (tree); 6111 extern tree strip_top_quals (tree); 6112 extern bool reference_related_p (tree, tree); 6113 extern int remaining_arguments (tree); 6114 extern tree perform_implicit_conversion (tree, tree, tsubst_flags_t); 6115 extern tree perform_implicit_conversion_flags (tree, tree, tsubst_flags_t, int); 6116 extern tree build_converted_constant_expr (tree, tree, tsubst_flags_t); 6117 extern tree perform_direct_initialization_if_possible (tree, tree, bool, 6118 tsubst_flags_t); 6119 extern tree in_charge_arg_for_name (tree); 6120 extern tree build_cxx_call (tree, int, tree *, 6121 tsubst_flags_t); 6122 extern bool is_std_init_list (tree); 6123 extern bool is_list_ctor (tree); 6124 extern void validate_conversion_obstack (void); 6125 extern void mark_versions_used (tree); 6126 extern tree get_function_version_dispatcher (tree); 6127 6128 /* in class.c */ 6129 extern tree build_vfield_ref (tree, tree); 6130 extern tree build_if_in_charge (tree true_stmt, tree false_stmt = void_node); 6131 extern tree build_base_path (enum tree_code, tree, 6132 tree, int, tsubst_flags_t); 6133 extern tree convert_to_base (tree, tree, bool, bool, 6134 tsubst_flags_t); 6135 extern tree convert_to_base_statically (tree, tree); 6136 extern tree build_vtbl_ref (tree, tree); 6137 extern tree build_vfn_ref (tree, tree); 6138 extern tree get_vtable_decl (tree, int); 6139 extern bool add_method (tree, tree, bool); 6140 extern tree declared_access (tree); 6141 extern tree currently_open_class (tree); 6142 extern tree currently_open_derived_class (tree); 6143 extern tree outermost_open_class (void); 6144 extern tree current_nonlambda_class_type (void); 6145 extern tree finish_struct (tree, tree); 6146 extern void finish_struct_1 (tree); 6147 extern int resolves_to_fixed_type_p (tree, int *); 6148 extern void init_class_processing (void); 6149 extern int is_empty_class (tree); 6150 extern bool is_really_empty_class (tree); 6151 extern void pushclass (tree); 6152 extern void popclass (void); 6153 extern void push_nested_class (tree); 6154 extern void pop_nested_class (void); 6155 extern int current_lang_depth (void); 6156 extern void push_lang_context (tree); 6157 extern void pop_lang_context (void); 6158 extern tree instantiate_type (tree, tree, tsubst_flags_t); 6159 extern void build_self_reference (void); 6160 extern int same_signature_p (const_tree, const_tree); 6161 extern void maybe_add_class_template_decl_list (tree, tree, int); 6162 extern void unreverse_member_declarations (tree); 6163 extern void invalidate_class_lookup_cache (void); 6164 extern void maybe_note_name_used_in_class (tree, tree); 6165 extern void note_name_declared_in_class (tree, tree); 6166 extern tree get_vtbl_decl_for_binfo (tree); 6167 extern bool vptr_via_virtual_p (tree); 6168 extern void debug_class (tree); 6169 extern void debug_thunks (tree); 6170 extern void set_linkage_according_to_type (tree, tree); 6171 extern void determine_key_method (tree); 6172 extern void check_for_override (tree, tree); 6173 extern void push_class_stack (void); 6174 extern void pop_class_stack (void); 6175 extern bool default_ctor_p (tree); 6176 extern bool type_has_user_nondefault_constructor (tree); 6177 extern tree in_class_defaulted_default_constructor (tree); 6178 extern bool user_provided_p (tree); 6179 extern bool type_has_user_provided_constructor (tree); 6180 extern bool type_has_non_user_provided_default_constructor (tree); 6181 extern bool vbase_has_user_provided_move_assign (tree); 6182 extern tree default_init_uninitialized_part (tree); 6183 extern bool trivial_default_constructor_is_constexpr (tree); 6184 extern bool type_has_constexpr_default_constructor (tree); 6185 extern bool type_has_virtual_destructor (tree); 6186 extern bool classtype_has_move_assign_or_move_ctor_p (tree, bool user_declared); 6187 extern bool classtype_has_non_deleted_move_ctor (tree); 6188 extern bool type_build_ctor_call (tree); 6189 extern bool type_build_dtor_call (tree); 6190 extern void explain_non_literal_class (tree); 6191 extern void inherit_targ_abi_tags (tree); 6192 extern void defaulted_late_check (tree); 6193 extern bool defaultable_fn_check (tree); 6194 extern void check_abi_tags (tree); 6195 extern tree missing_abi_tags (tree); 6196 extern void fixup_type_variants (tree); 6197 extern void fixup_attribute_variants (tree); 6198 extern tree* decl_cloned_function_p (const_tree, bool); 6199 extern void clone_function_decl (tree, bool); 6200 extern void adjust_clone_args (tree); 6201 extern void deduce_noexcept_on_destructor (tree); 6202 extern bool uniquely_derived_from_p (tree, tree); 6203 extern bool publicly_uniquely_derived_p (tree, tree); 6204 extern tree common_enclosing_class (tree, tree); 6205 6206 /* in cvt.c */ 6207 extern tree convert_to_reference (tree, tree, int, int, tree, 6208 tsubst_flags_t); 6209 extern tree convert_from_reference (tree); 6210 extern tree force_rvalue (tree, tsubst_flags_t); 6211 extern tree ocp_convert (tree, tree, int, int, 6212 tsubst_flags_t); 6213 extern tree cp_convert (tree, tree, tsubst_flags_t); 6214 extern tree cp_convert_and_check (tree, tree, tsubst_flags_t); 6215 extern tree cp_fold_convert (tree, tree); 6216 extern tree cp_get_callee (tree); 6217 extern tree cp_get_callee_fndecl (tree); 6218 extern tree cp_get_callee_fndecl_nofold (tree); 6219 extern tree cp_get_fndecl_from_callee (tree, bool fold = true); 6220 extern tree convert_to_void (tree, impl_conv_void, 6221 tsubst_flags_t); 6222 extern tree convert_force (tree, tree, int, 6223 tsubst_flags_t); 6224 extern tree build_expr_type_conversion (int, tree, bool); 6225 extern tree type_promotes_to (tree); 6226 extern bool can_convert_qual (tree, tree); 6227 extern tree perform_qualification_conversions (tree, tree); 6228 extern bool tx_safe_fn_type_p (tree); 6229 extern tree tx_unsafe_fn_variant (tree); 6230 extern bool fnptr_conv_p (tree, tree); 6231 extern tree strip_fnptr_conv (tree); 6232 6233 /* in name-lookup.c */ 6234 extern void maybe_push_cleanup_level (tree); 6235 extern tree make_anon_name (void); 6236 extern tree check_for_out_of_scope_variable (tree); 6237 extern void dump (cp_binding_level &ref); 6238 extern void dump (cp_binding_level *ptr); 6239 extern void print_other_binding_stack (cp_binding_level *); 6240 extern tree maybe_push_decl (tree); 6241 extern tree current_decl_namespace (void); 6242 6243 /* decl.c */ 6244 extern tree poplevel (int, int, int); 6245 extern void cxx_init_decl_processing (void); 6246 enum cp_tree_node_structure_enum cp_tree_node_structure 6247 (union lang_tree_node *); 6248 extern void finish_scope (void); 6249 extern void push_switch (tree); 6250 extern void pop_switch (void); 6251 extern void note_break_stmt (void); 6252 extern bool note_iteration_stmt_body_start (void); 6253 extern void note_iteration_stmt_body_end (bool); 6254 extern tree make_lambda_name (void); 6255 extern int decls_match (tree, tree, bool = true); 6256 extern bool maybe_version_functions (tree, tree, bool); 6257 extern tree duplicate_decls (tree, tree, bool); 6258 extern tree declare_local_label (tree); 6259 extern tree define_label (location_t, tree); 6260 extern void check_goto (tree); 6261 extern bool check_omp_return (void); 6262 extern tree make_typename_type (tree, tree, enum tag_types, tsubst_flags_t); 6263 extern tree build_typename_type (tree, tree, tree, tag_types); 6264 extern tree make_unbound_class_template (tree, tree, tree, tsubst_flags_t); 6265 extern tree build_library_fn_ptr (const char *, tree, int); 6266 extern tree build_cp_library_fn_ptr (const char *, tree, int); 6267 extern tree push_library_fn (tree, tree, tree, int); 6268 extern tree push_void_library_fn (tree, tree, int); 6269 extern tree push_throw_library_fn (tree, tree); 6270 extern void warn_misplaced_attr_for_class_type (source_location location, 6271 tree class_type); 6272 extern tree check_tag_decl (cp_decl_specifier_seq *, bool); 6273 extern tree shadow_tag (cp_decl_specifier_seq *); 6274 extern tree groktypename (cp_decl_specifier_seq *, const cp_declarator *, bool); 6275 extern tree start_decl (const cp_declarator *, cp_decl_specifier_seq *, int, tree, tree, tree *); 6276 extern void start_decl_1 (tree, bool); 6277 extern bool check_array_initializer (tree, tree, tree); 6278 extern void cp_finish_decl (tree, tree, bool, tree, int); 6279 extern tree lookup_decomp_type (tree); 6280 extern void cp_maybe_mangle_decomp (tree, tree, unsigned int); 6281 extern void cp_finish_decomp (tree, tree, unsigned int); 6282 extern int cp_complete_array_type (tree *, tree, bool); 6283 extern int cp_complete_array_type_or_error (tree *, tree, bool, tsubst_flags_t); 6284 extern tree build_ptrmemfunc_type (tree); 6285 extern tree build_ptrmem_type (tree, tree); 6286 /* the grokdeclarator prototype is in decl.h */ 6287 extern tree build_this_parm (tree, tree, cp_cv_quals); 6288 extern tree grokparms (tree, tree *); 6289 extern int copy_fn_p (const_tree); 6290 extern bool move_fn_p (const_tree); 6291 extern bool move_signature_fn_p (const_tree); 6292 extern tree get_scope_of_declarator (const cp_declarator *); 6293 extern void grok_special_member_properties (tree); 6294 extern bool grok_ctor_properties (const_tree, const_tree); 6295 extern bool grok_op_properties (tree, bool); 6296 extern tree xref_tag (enum tag_types, tree, tag_scope, bool); 6297 extern tree xref_tag_from_type (tree, tree, tag_scope); 6298 extern void xref_basetypes (tree, tree); 6299 extern tree start_enum (tree, tree, tree, tree, bool, bool *); 6300 extern void finish_enum_value_list (tree); 6301 extern void finish_enum (tree); 6302 extern void build_enumerator (tree, tree, tree, tree, location_t); 6303 extern tree lookup_enumerator (tree, tree); 6304 extern bool start_preparsed_function (tree, tree, int); 6305 extern bool start_function (cp_decl_specifier_seq *, 6306 const cp_declarator *, tree); 6307 extern tree begin_function_body (void); 6308 extern void finish_function_body (tree); 6309 extern tree outer_curly_brace_block (tree); 6310 extern tree finish_function (bool); 6311 extern tree grokmethod (cp_decl_specifier_seq *, const cp_declarator *, tree); 6312 extern void maybe_register_incomplete_var (tree); 6313 extern void maybe_commonize_var (tree); 6314 extern void complete_vars (tree); 6315 extern tree static_fn_type (tree); 6316 extern void revert_static_member_fn (tree); 6317 extern void fixup_anonymous_aggr (tree); 6318 extern tree compute_array_index_type (tree, tree, tsubst_flags_t); 6319 extern tree check_default_argument (tree, tree, tsubst_flags_t); 6320 extern int wrapup_namespace_globals (); 6321 extern tree create_implicit_typedef (tree, tree); 6322 extern int local_variable_p (const_tree); 6323 extern tree register_dtor_fn (tree); 6324 extern tmpl_spec_kind current_tmpl_spec_kind (int); 6325 extern tree cp_fname_init (const char *, tree *); 6326 extern tree cxx_builtin_function (tree decl); 6327 extern tree cxx_builtin_function_ext_scope (tree decl); 6328 extern tree check_elaborated_type_specifier (enum tag_types, tree, bool); 6329 extern void warn_extern_redeclared_static (tree, tree); 6330 extern tree cxx_comdat_group (tree); 6331 extern bool cp_missing_noreturn_ok_p (tree); 6332 extern bool is_direct_enum_init (tree, tree); 6333 extern void initialize_artificial_var (tree, vec<constructor_elt, va_gc> *); 6334 extern tree check_var_type (tree, tree); 6335 extern tree reshape_init (tree, tree, tsubst_flags_t); 6336 extern tree next_initializable_field (tree); 6337 extern tree fndecl_declared_return_type (tree); 6338 extern bool undeduced_auto_decl (tree); 6339 extern bool require_deduced_type (tree, tsubst_flags_t = tf_warning_or_error); 6340 6341 extern tree finish_case_label (location_t, tree, tree); 6342 extern tree cxx_maybe_build_cleanup (tree, tsubst_flags_t); 6343 extern bool check_array_designated_initializer (constructor_elt *, 6344 unsigned HOST_WIDE_INT); 6345 extern bool check_for_uninitialized_const_var (tree, bool, tsubst_flags_t); 6346 6347 /* in decl2.c */ 6348 extern void record_mangling (tree, bool); 6349 extern void overwrite_mangling (tree, tree); 6350 extern void note_mangling_alias (tree, tree); 6351 extern void generate_mangling_aliases (void); 6352 extern tree build_memfn_type (tree, tree, cp_cv_quals, cp_ref_qualifier); 6353 extern tree build_pointer_ptrmemfn_type (tree); 6354 extern tree change_return_type (tree, tree); 6355 extern void maybe_retrofit_in_chrg (tree); 6356 extern void maybe_make_one_only (tree); 6357 extern bool vague_linkage_p (tree); 6358 extern void grokclassfn (tree, tree, 6359 enum overload_flags); 6360 extern tree grok_array_decl (location_t, tree, tree, bool); 6361 extern tree delete_sanity (tree, tree, bool, int, tsubst_flags_t); 6362 extern tree check_classfn (tree, tree, tree); 6363 extern void check_member_template (tree); 6364 extern tree grokfield (const cp_declarator *, cp_decl_specifier_seq *, 6365 tree, bool, tree, tree); 6366 extern tree grokbitfield (const cp_declarator *, cp_decl_specifier_seq *, 6367 tree, tree, tree); 6368 extern bool any_dependent_type_attributes_p (tree); 6369 extern tree cp_reconstruct_complex_type (tree, tree); 6370 extern bool attributes_naming_typedef_ok (tree); 6371 extern void cplus_decl_attributes (tree *, tree, int); 6372 extern void finish_anon_union (tree); 6373 extern void cxx_post_compilation_parsing_cleanups (void); 6374 extern tree coerce_new_type (tree); 6375 extern tree coerce_delete_type (tree); 6376 extern void comdat_linkage (tree); 6377 extern void determine_visibility (tree); 6378 extern void constrain_class_visibility (tree); 6379 extern void reset_type_linkage (tree); 6380 extern void tentative_decl_linkage (tree); 6381 extern void import_export_decl (tree); 6382 extern tree build_cleanup (tree); 6383 extern tree build_offset_ref_call_from_tree (tree, vec<tree, va_gc> **, 6384 tsubst_flags_t); 6385 extern bool decl_defined_p (tree); 6386 extern bool decl_constant_var_p (tree); 6387 extern bool decl_maybe_constant_var_p (tree); 6388 extern void no_linkage_error (tree); 6389 extern void check_default_args (tree); 6390 extern bool mark_used (tree); 6391 extern bool mark_used (tree, tsubst_flags_t); 6392 extern void finish_static_data_member_decl (tree, tree, bool, tree, int); 6393 extern tree cp_build_parm_decl (tree, tree, tree); 6394 extern tree get_guard (tree); 6395 extern tree get_guard_cond (tree, bool); 6396 extern tree set_guard (tree); 6397 extern tree maybe_get_tls_wrapper_call (tree); 6398 extern void mark_needed (tree); 6399 extern bool decl_needed_p (tree); 6400 extern void note_vague_linkage_fn (tree); 6401 extern void note_variable_template_instantiation (tree); 6402 extern tree build_artificial_parm (tree, tree, tree); 6403 extern bool possibly_inlined_p (tree); 6404 extern int parm_index (tree); 6405 extern tree vtv_start_verification_constructor_init_function (void); 6406 extern tree vtv_finish_verification_constructor_init_function (tree); 6407 extern bool cp_omp_mappable_type (tree); 6408 6409 /* in error.c */ 6410 extern const char *type_as_string (tree, int); 6411 extern const char *type_as_string_translate (tree, int); 6412 extern const char *decl_as_string (tree, int); 6413 extern const char *decl_as_string_translate (tree, int); 6414 extern const char *decl_as_dwarf_string (tree, int); 6415 extern const char *expr_as_string (tree, int); 6416 extern const char *lang_decl_name (tree, int, bool); 6417 extern const char *lang_decl_dwarf_name (tree, int, bool); 6418 extern const char *language_to_string (enum languages); 6419 extern const char *class_key_or_enum_as_string (tree); 6420 extern void maybe_warn_variadic_templates (void); 6421 extern void maybe_warn_cpp0x (cpp0x_warn_str str); 6422 extern bool pedwarn_cxx98 (location_t, int, const char *, ...) ATTRIBUTE_GCC_DIAG(3,4); 6423 extern location_t location_of (tree); 6424 extern void qualified_name_lookup_error (tree, tree, tree, 6425 location_t); 6426 6427 /* in except.c */ 6428 extern void init_exception_processing (void); 6429 extern tree expand_start_catch_block (tree); 6430 extern void expand_end_catch_block (void); 6431 extern tree build_exc_ptr (void); 6432 extern tree build_throw (tree); 6433 extern int nothrow_libfn_p (const_tree); 6434 extern void check_handlers (tree); 6435 extern tree finish_noexcept_expr (tree, tsubst_flags_t); 6436 extern bool expr_noexcept_p (tree, tsubst_flags_t); 6437 extern void perform_deferred_noexcept_checks (void); 6438 extern bool nothrow_spec_p (const_tree); 6439 extern bool type_noexcept_p (const_tree); 6440 extern bool type_throw_all_p (const_tree); 6441 extern tree build_noexcept_spec (tree, int); 6442 extern void choose_personality_routine (enum languages); 6443 extern tree build_must_not_throw_expr (tree,tree); 6444 extern tree eh_type_info (tree); 6445 extern tree begin_eh_spec_block (void); 6446 extern void finish_eh_spec_block (tree, tree); 6447 extern tree build_eh_type_type (tree); 6448 extern tree cp_protect_cleanup_actions (void); 6449 extern tree create_try_catch_expr (tree, tree); 6450 6451 /* in expr.c */ 6452 extern tree cplus_expand_constant (tree); 6453 extern tree mark_use (tree expr, bool rvalue_p, bool read_p, 6454 location_t = UNKNOWN_LOCATION, 6455 bool reject_builtin = true); 6456 extern tree mark_rvalue_use (tree, 6457 location_t = UNKNOWN_LOCATION, 6458 bool reject_builtin = true); 6459 extern tree mark_lvalue_use (tree); 6460 extern tree mark_lvalue_use_nonread (tree); 6461 extern tree mark_type_use (tree); 6462 extern tree mark_discarded_use (tree); 6463 extern void mark_exp_read (tree); 6464 6465 /* friend.c */ 6466 extern int is_friend (tree, tree); 6467 extern void make_friend_class (tree, tree, bool); 6468 extern void add_friend (tree, tree, bool); 6469 extern tree do_friend (tree, tree, tree, tree, 6470 enum overload_flags, bool); 6471 6472 extern void set_global_friend (tree); 6473 extern bool is_global_friend (tree); 6474 6475 /* in init.c */ 6476 extern tree expand_member_init (tree); 6477 extern void emit_mem_initializers (tree); 6478 extern tree build_aggr_init (tree, tree, int, 6479 tsubst_flags_t); 6480 extern int is_class_type (tree, int); 6481 extern tree get_type_value (tree); 6482 extern tree build_zero_init (tree, tree, bool); 6483 extern tree build_value_init (tree, tsubst_flags_t); 6484 extern tree build_value_init_noctor (tree, tsubst_flags_t); 6485 extern tree get_nsdmi (tree, bool, tsubst_flags_t); 6486 extern tree build_offset_ref (tree, tree, bool, 6487 tsubst_flags_t); 6488 extern tree throw_bad_array_new_length (void); 6489 extern bool type_has_new_extended_alignment (tree); 6490 extern unsigned malloc_alignment (void); 6491 extern tree build_new (vec<tree, va_gc> **, tree, tree, 6492 vec<tree, va_gc> **, int, 6493 tsubst_flags_t); 6494 extern tree get_temp_regvar (tree, tree); 6495 extern tree build_vec_init (tree, tree, tree, bool, int, 6496 tsubst_flags_t); 6497 extern tree build_delete (tree, tree, 6498 special_function_kind, 6499 int, int, tsubst_flags_t); 6500 extern void push_base_cleanups (void); 6501 extern tree build_vec_delete (tree, tree, 6502 special_function_kind, int, 6503 tsubst_flags_t); 6504 extern tree create_temporary_var (tree); 6505 extern void initialize_vtbl_ptrs (tree); 6506 extern tree scalar_constant_value (tree); 6507 extern tree decl_really_constant_value (tree); 6508 extern int diagnose_uninitialized_cst_or_ref_member (tree, bool, bool); 6509 extern tree build_vtbl_address (tree); 6510 extern bool maybe_reject_flexarray_init (tree, tree); 6511 6512 /* in lex.c */ 6513 extern void cxx_dup_lang_specific_decl (tree); 6514 extern void yyungetc (int, int); 6515 6516 extern tree unqualified_name_lookup_error (tree, 6517 location_t = UNKNOWN_LOCATION); 6518 extern tree unqualified_fn_lookup_error (cp_expr); 6519 extern tree make_conv_op_name (tree); 6520 extern tree build_lang_decl (enum tree_code, tree, tree); 6521 extern tree build_lang_decl_loc (location_t, enum tree_code, tree, tree); 6522 extern void retrofit_lang_decl (tree); 6523 extern void fit_decomposition_lang_decl (tree, tree); 6524 extern tree copy_decl (tree CXX_MEM_STAT_INFO); 6525 extern tree copy_type (tree CXX_MEM_STAT_INFO); 6526 extern tree cxx_make_type (enum tree_code); 6527 extern tree make_class_type (enum tree_code); 6528 extern const char *get_identifier_kind_name (tree); 6529 extern void set_identifier_kind (tree, cp_identifier_kind); 6530 extern bool cxx_init (void); 6531 extern void cxx_finish (void); 6532 extern bool in_main_input_context (void); 6533 6534 /* in method.c */ 6535 extern void init_method (void); 6536 extern tree make_thunk (tree, bool, tree, tree); 6537 extern void finish_thunk (tree); 6538 extern void use_thunk (tree, bool); 6539 extern bool trivial_fn_p (tree); 6540 extern tree forward_parm (tree); 6541 extern bool is_trivially_xible (enum tree_code, tree, tree); 6542 extern bool is_xible (enum tree_code, tree, tree); 6543 extern tree get_defaulted_eh_spec (tree, tsubst_flags_t = tf_warning_or_error); 6544 extern void after_nsdmi_defaulted_late_checks (tree); 6545 extern bool maybe_explain_implicit_delete (tree); 6546 extern void explain_implicit_non_constexpr (tree); 6547 extern void deduce_inheriting_ctor (tree); 6548 extern void synthesize_method (tree); 6549 extern tree lazily_declare_fn (special_function_kind, 6550 tree); 6551 extern tree skip_artificial_parms_for (const_tree, tree); 6552 extern int num_artificial_parms_for (const_tree); 6553 extern tree make_alias_for (tree, tree); 6554 extern tree get_copy_ctor (tree, tsubst_flags_t); 6555 extern tree get_copy_assign (tree); 6556 extern tree get_default_ctor (tree); 6557 extern tree get_dtor (tree, tsubst_flags_t); 6558 extern tree strip_inheriting_ctors (tree); 6559 extern tree inherited_ctor_binfo (tree); 6560 extern bool ctor_omit_inherited_parms (tree); 6561 extern tree locate_ctor (tree); 6562 extern tree implicitly_declare_fn (special_function_kind, tree, 6563 bool, tree, tree); 6564 6565 /* In optimize.c */ 6566 extern bool maybe_clone_body (tree); 6567 6568 /* In parser.c */ 6569 extern tree cp_convert_range_for (tree, tree, tree, tree, unsigned int, bool, 6570 unsigned short); 6571 extern bool parsing_nsdmi (void); 6572 extern bool parsing_default_capturing_generic_lambda_in_template (void); 6573 extern void inject_this_parameter (tree, cp_cv_quals); 6574 extern location_t defarg_location (tree); 6575 extern void maybe_show_extern_c_location (void); 6576 6577 /* in pt.c */ 6578 extern bool check_template_shadow (tree); 6579 extern bool check_auto_in_tmpl_args (tree, tree); 6580 extern tree get_innermost_template_args (tree, int); 6581 extern void maybe_begin_member_template_processing (tree); 6582 extern void maybe_end_member_template_processing (void); 6583 extern tree finish_member_template_decl (tree); 6584 extern void begin_template_parm_list (void); 6585 extern bool begin_specialization (void); 6586 extern void reset_specialization (void); 6587 extern void end_specialization (void); 6588 extern void begin_explicit_instantiation (void); 6589 extern void end_explicit_instantiation (void); 6590 extern void check_unqualified_spec_or_inst (tree, location_t); 6591 extern tree check_explicit_specialization (tree, tree, int, int, 6592 tree = NULL_TREE); 6593 extern int num_template_headers_for_class (tree); 6594 extern void check_template_variable (tree); 6595 extern tree make_auto (void); 6596 extern tree make_decltype_auto (void); 6597 extern tree make_template_placeholder (tree); 6598 extern bool template_placeholder_p (tree); 6599 extern tree do_auto_deduction (tree, tree, tree, 6600 tsubst_flags_t 6601 = tf_warning_or_error, 6602 auto_deduction_context 6603 = adc_unspecified, 6604 tree = NULL_TREE, 6605 int = LOOKUP_NORMAL); 6606 extern tree type_uses_auto (tree); 6607 extern tree type_uses_auto_or_concept (tree); 6608 extern void append_type_to_template_for_access_check (tree, tree, tree, 6609 location_t); 6610 extern tree convert_generic_types_to_packs (tree, int, int); 6611 extern tree splice_late_return_type (tree, tree); 6612 extern bool is_auto (const_tree); 6613 extern tree process_template_parm (tree, location_t, tree, 6614 bool, bool); 6615 extern tree end_template_parm_list (tree); 6616 extern void end_template_parm_list (void); 6617 extern void end_template_decl (void); 6618 extern tree maybe_update_decl_type (tree, tree); 6619 extern bool check_default_tmpl_args (tree, tree, bool, bool, int); 6620 extern tree push_template_decl (tree); 6621 extern tree push_template_decl_real (tree, bool); 6622 extern tree add_inherited_template_parms (tree, tree); 6623 extern bool redeclare_class_template (tree, tree, tree); 6624 extern tree lookup_template_class (tree, tree, tree, tree, 6625 int, tsubst_flags_t); 6626 extern tree lookup_template_function (tree, tree); 6627 extern tree lookup_template_variable (tree, tree); 6628 extern int uses_template_parms (tree); 6629 extern bool uses_template_parms_level (tree, int); 6630 extern bool in_template_function (void); 6631 extern bool need_generic_capture (void); 6632 extern tree instantiate_class_template (tree); 6633 extern tree instantiate_template (tree, tree, tsubst_flags_t); 6634 extern tree fn_type_unification (tree, tree, tree, 6635 const tree *, unsigned int, 6636 tree, unification_kind_t, int, 6637 bool, bool); 6638 extern void mark_decl_instantiated (tree, int); 6639 extern int more_specialized_fn (tree, tree, int); 6640 extern void do_decl_instantiation (tree, tree); 6641 extern void do_type_instantiation (tree, tree, tsubst_flags_t); 6642 extern bool always_instantiate_p (tree); 6643 extern bool maybe_instantiate_noexcept (tree, tsubst_flags_t = tf_warning_or_error); 6644 extern tree instantiate_decl (tree, bool, bool); 6645 extern int comp_template_parms (const_tree, const_tree); 6646 extern bool builtin_pack_fn_p (tree); 6647 extern bool uses_parameter_packs (tree); 6648 extern bool template_parameter_pack_p (const_tree); 6649 extern bool function_parameter_pack_p (const_tree); 6650 extern bool function_parameter_expanded_from_pack_p (tree, tree); 6651 extern tree make_pack_expansion (tree, tsubst_flags_t = tf_warning_or_error); 6652 extern bool check_for_bare_parameter_packs (tree, location_t = UNKNOWN_LOCATION); 6653 extern tree build_template_info (tree, tree); 6654 extern tree get_template_info (const_tree); 6655 extern vec<qualified_typedef_usage_t, va_gc> *get_types_needing_access_check (tree); 6656 extern int template_class_depth (tree); 6657 extern int is_specialization_of (tree, tree); 6658 extern bool is_specialization_of_friend (tree, tree); 6659 extern tree get_pattern_parm (tree, tree); 6660 extern int comp_template_args (tree, tree, tree * = NULL, 6661 tree * = NULL, bool = false); 6662 extern int template_args_equal (tree, tree, bool = false); 6663 extern tree maybe_process_partial_specialization (tree); 6664 extern tree most_specialized_instantiation (tree); 6665 extern void print_candidates (tree); 6666 extern void instantiate_pending_templates (int); 6667 extern tree tsubst_default_argument (tree, int, tree, tree, 6668 tsubst_flags_t); 6669 extern tree tsubst (tree, tree, tsubst_flags_t, tree); 6670 extern tree tsubst_copy_and_build (tree, tree, tsubst_flags_t, 6671 tree, bool, bool); 6672 extern tree tsubst_expr (tree, tree, tsubst_flags_t, 6673 tree, bool); 6674 extern tree tsubst_pack_expansion (tree, tree, tsubst_flags_t, tree); 6675 extern tree most_general_template (tree); 6676 extern tree get_mostly_instantiated_function_type (tree); 6677 extern bool problematic_instantiation_changed (void); 6678 extern void record_last_problematic_instantiation (void); 6679 extern struct tinst_level *current_instantiation(void); 6680 extern bool instantiating_current_function_p (void); 6681 extern tree maybe_get_template_decl_from_type_decl (tree); 6682 extern int processing_template_parmlist; 6683 extern bool dependent_type_p (tree); 6684 extern bool dependent_scope_p (tree); 6685 extern bool any_dependent_template_arguments_p (const_tree); 6686 extern bool any_erroneous_template_args_p (const_tree); 6687 extern bool dependent_template_p (tree); 6688 extern bool dependent_template_id_p (tree, tree); 6689 extern bool type_dependent_expression_p (tree); 6690 extern bool type_dependent_object_expression_p (tree); 6691 extern bool any_type_dependent_arguments_p (const vec<tree, va_gc> *); 6692 extern bool any_type_dependent_elements_p (const_tree); 6693 extern bool type_dependent_expression_p_push (tree); 6694 extern bool value_dependent_expression_p (tree); 6695 extern bool instantiation_dependent_expression_p (tree); 6696 extern bool instantiation_dependent_uneval_expression_p (tree); 6697 extern bool any_value_dependent_elements_p (const_tree); 6698 extern bool dependent_omp_for_p (tree, tree, tree, tree); 6699 extern tree resolve_typename_type (tree, bool); 6700 extern tree template_for_substitution (tree); 6701 extern tree build_non_dependent_expr (tree); 6702 extern void make_args_non_dependent (vec<tree, va_gc> *); 6703 extern bool reregister_specialization (tree, tree, tree); 6704 extern tree instantiate_non_dependent_expr (tree); 6705 extern tree instantiate_non_dependent_expr_sfinae (tree, tsubst_flags_t); 6706 extern tree instantiate_non_dependent_expr_internal (tree, tsubst_flags_t); 6707 extern tree instantiate_non_dependent_or_null (tree); 6708 extern bool variable_template_specialization_p (tree); 6709 extern bool alias_type_or_template_p (tree); 6710 extern bool alias_template_specialization_p (const_tree); 6711 extern bool dependent_alias_template_spec_p (const_tree); 6712 extern bool explicit_class_specialization_p (tree); 6713 extern bool push_tinst_level (tree); 6714 extern bool push_tinst_level_loc (tree, location_t); 6715 extern void pop_tinst_level (void); 6716 extern struct tinst_level *outermost_tinst_level(void); 6717 extern void init_template_processing (void); 6718 extern void print_template_statistics (void); 6719 bool template_template_parameter_p (const_tree); 6720 bool template_type_parameter_p (const_tree); 6721 extern bool primary_template_specialization_p (const_tree); 6722 extern tree get_primary_template_innermost_parameters (const_tree); 6723 extern tree get_template_parms_at_level (tree, int); 6724 extern tree get_template_innermost_arguments (const_tree); 6725 extern tree get_template_argument_pack_elems (const_tree); 6726 extern tree get_function_template_decl (const_tree); 6727 extern tree resolve_nondeduced_context (tree, tsubst_flags_t); 6728 extern hashval_t iterative_hash_template_arg (tree arg, hashval_t val); 6729 extern tree coerce_template_parms (tree, tree, tree); 6730 extern tree coerce_template_parms (tree, tree, tree, tsubst_flags_t); 6731 extern void register_local_specialization (tree, tree); 6732 extern tree retrieve_local_specialization (tree); 6733 extern tree extract_fnparm_pack (tree, tree *); 6734 extern tree template_parm_to_arg (tree); 6735 extern tree dguide_name (tree); 6736 extern bool dguide_name_p (tree); 6737 extern bool deduction_guide_p (const_tree); 6738 extern bool copy_guide_p (const_tree); 6739 extern bool template_guide_p (const_tree); 6740 6741 /* in repo.c */ 6742 extern void init_repo (void); 6743 extern int repo_emit_p (tree); 6744 extern bool repo_export_class_p (const_tree); 6745 extern void finish_repo (void); 6746 6747 /* in rtti.c */ 6748 /* A vector of all tinfo decls that haven't been emitted yet. */ 6749 extern GTY(()) vec<tree, va_gc> *unemitted_tinfo_decls; 6750 6751 extern void init_rtti_processing (void); 6752 extern tree build_typeid (tree, tsubst_flags_t); 6753 extern tree get_tinfo_decl (tree); 6754 extern tree get_typeid (tree, tsubst_flags_t); 6755 extern tree build_headof (tree); 6756 extern tree build_dynamic_cast (tree, tree, tsubst_flags_t); 6757 extern void emit_support_tinfos (void); 6758 extern bool emit_tinfo_decl (tree); 6759 6760 /* in search.c */ 6761 extern bool accessible_base_p (tree, tree, bool); 6762 extern tree lookup_base (tree, tree, base_access, 6763 base_kind *, tsubst_flags_t); 6764 extern tree dcast_base_hint (tree, tree); 6765 extern int accessible_p (tree, tree, bool); 6766 extern int accessible_in_template_p (tree, tree); 6767 extern tree lookup_field (tree, tree, int, bool); 6768 extern tree lookup_fnfields (tree, tree, int); 6769 extern tree lookup_member (tree, tree, int, bool, 6770 tsubst_flags_t, 6771 access_failure_info *afi = NULL); 6772 extern tree lookup_member_fuzzy (tree, tree, bool); 6773 extern tree locate_field_accessor (tree, tree, bool); 6774 extern int look_for_overrides (tree, tree); 6775 extern void get_pure_virtuals (tree); 6776 extern void maybe_suppress_debug_info (tree); 6777 extern void note_debug_info_needed (tree); 6778 extern tree current_scope (void); 6779 extern int at_function_scope_p (void); 6780 extern bool at_class_scope_p (void); 6781 extern bool at_namespace_scope_p (void); 6782 extern tree context_for_name_lookup (tree); 6783 extern tree lookup_conversions (tree); 6784 extern tree binfo_from_vbase (tree); 6785 extern tree binfo_for_vbase (tree, tree); 6786 extern tree look_for_overrides_here (tree, tree); 6787 #define dfs_skip_bases ((tree)1) 6788 extern tree dfs_walk_all (tree, tree (*) (tree, void *), 6789 tree (*) (tree, void *), void *); 6790 extern tree dfs_walk_once (tree, tree (*) (tree, void *), 6791 tree (*) (tree, void *), void *); 6792 extern tree binfo_via_virtual (tree, tree); 6793 extern bool binfo_direct_p (tree); 6794 extern tree build_baselink (tree, tree, tree, tree); 6795 extern tree adjust_result_of_qualified_name_lookup 6796 (tree, tree, tree); 6797 extern tree copied_binfo (tree, tree); 6798 extern tree original_binfo (tree, tree); 6799 extern int shared_member_p (tree); 6800 extern bool any_dependent_bases_p (tree = current_nonlambda_class_type ()); 6801 6802 /* The representation of a deferred access check. */ 6803 6804 struct GTY(()) deferred_access_check { 6805 /* The base class in which the declaration is referenced. */ 6806 tree binfo; 6807 /* The declaration whose access must be checked. */ 6808 tree decl; 6809 /* The declaration that should be used in the error message. */ 6810 tree diag_decl; 6811 /* The location of this access. */ 6812 location_t loc; 6813 }; 6814 6815 /* in semantics.c */ 6816 extern void push_deferring_access_checks (deferring_kind); 6817 extern void resume_deferring_access_checks (void); 6818 extern void stop_deferring_access_checks (void); 6819 extern void pop_deferring_access_checks (void); 6820 extern vec<deferred_access_check, va_gc> *get_deferred_access_checks (void); 6821 extern void reopen_deferring_access_checks (vec<deferred_access_check, va_gc> *); 6822 extern void pop_to_parent_deferring_access_checks (void); 6823 extern bool perform_access_checks (vec<deferred_access_check, va_gc> *, 6824 tsubst_flags_t); 6825 extern bool perform_deferred_access_checks (tsubst_flags_t); 6826 extern bool perform_or_defer_access_check (tree, tree, tree, 6827 tsubst_flags_t, 6828 access_failure_info *afi = NULL); 6829 6830 /* RAII sentinel to ensures that deferred access checks are popped before 6831 a function returns. */ 6832 6833 struct deferring_access_check_sentinel 6834 { 6835 deferring_access_check_sentinel (enum deferring_kind kind = dk_deferred) 6836 { 6837 push_deferring_access_checks (kind); 6838 } 6839 ~deferring_access_check_sentinel () 6840 { 6841 pop_deferring_access_checks (); 6842 } 6843 }; 6844 6845 extern int stmts_are_full_exprs_p (void); 6846 extern void init_cp_semantics (void); 6847 extern tree do_poplevel (tree); 6848 extern void break_maybe_infinite_loop (void); 6849 extern void add_decl_expr (tree); 6850 extern tree maybe_cleanup_point_expr_void (tree); 6851 extern tree finish_expr_stmt (tree); 6852 extern tree begin_if_stmt (void); 6853 extern tree finish_if_stmt_cond (tree, tree); 6854 extern tree finish_then_clause (tree); 6855 extern void begin_else_clause (tree); 6856 extern void finish_else_clause (tree); 6857 extern void finish_if_stmt (tree); 6858 extern tree begin_while_stmt (void); 6859 extern void finish_while_stmt_cond (tree, tree, bool, unsigned short); 6860 extern void finish_while_stmt (tree); 6861 extern tree begin_do_stmt (void); 6862 extern void finish_do_body (tree); 6863 extern void finish_do_stmt (tree, tree, bool, unsigned short); 6864 extern tree finish_return_stmt (tree); 6865 extern tree begin_for_scope (tree *); 6866 extern tree begin_for_stmt (tree, tree); 6867 extern void finish_init_stmt (tree); 6868 extern void finish_for_cond (tree, tree, bool, unsigned short); 6869 extern void finish_for_expr (tree, tree); 6870 extern void finish_for_stmt (tree); 6871 extern tree begin_range_for_stmt (tree, tree); 6872 extern void finish_range_for_decl (tree, tree, tree); 6873 extern void finish_range_for_stmt (tree); 6874 extern tree finish_break_stmt (void); 6875 extern tree finish_continue_stmt (void); 6876 extern tree begin_switch_stmt (void); 6877 extern void finish_switch_cond (tree, tree); 6878 extern void finish_switch_stmt (tree); 6879 extern tree finish_goto_stmt (tree); 6880 extern tree begin_try_block (void); 6881 extern void finish_try_block (tree); 6882 extern void finish_handler_sequence (tree); 6883 extern tree begin_function_try_block (tree *); 6884 extern void finish_function_try_block (tree); 6885 extern void finish_function_handler_sequence (tree, tree); 6886 extern void finish_cleanup_try_block (tree); 6887 extern tree begin_handler (void); 6888 extern void finish_handler_parms (tree, tree); 6889 extern void finish_handler (tree); 6890 extern void finish_cleanup (tree, tree); 6891 extern bool is_this_parameter (tree); 6892 6893 enum { 6894 BCS_NORMAL = 0, 6895 BCS_NO_SCOPE = 1, 6896 BCS_TRY_BLOCK = 2, 6897 BCS_FN_BODY = 4, 6898 BCS_TRANSACTION = 8 6899 }; 6900 extern tree begin_compound_stmt (unsigned int); 6901 6902 extern void finish_compound_stmt (tree); 6903 extern tree finish_asm_stmt (int, tree, tree, tree, tree, 6904 tree, bool); 6905 extern tree finish_label_stmt (tree); 6906 extern void finish_label_decl (tree); 6907 extern cp_expr finish_parenthesized_expr (cp_expr); 6908 extern tree force_paren_expr (tree); 6909 extern tree maybe_undo_parenthesized_ref (tree); 6910 extern tree finish_non_static_data_member (tree, tree, tree); 6911 extern tree begin_stmt_expr (void); 6912 extern tree finish_stmt_expr_expr (tree, tree); 6913 extern tree finish_stmt_expr (tree, bool); 6914 extern tree stmt_expr_value_expr (tree); 6915 bool empty_expr_stmt_p (tree); 6916 extern cp_expr perform_koenig_lookup (cp_expr, vec<tree, va_gc> *, 6917 tsubst_flags_t); 6918 extern tree finish_call_expr (tree, vec<tree, va_gc> **, bool, 6919 bool, tsubst_flags_t); 6920 extern tree lookup_and_finish_template_variable (tree, tree, tsubst_flags_t = tf_warning_or_error); 6921 extern tree finish_template_variable (tree, tsubst_flags_t = tf_warning_or_error); 6922 extern cp_expr finish_increment_expr (cp_expr, enum tree_code); 6923 extern tree finish_this_expr (void); 6924 extern tree finish_pseudo_destructor_expr (tree, tree, tree, location_t); 6925 extern cp_expr finish_unary_op_expr (location_t, enum tree_code, cp_expr, 6926 tsubst_flags_t); 6927 /* Whether this call to finish_compound_literal represents a C++11 functional 6928 cast or a C99 compound literal. */ 6929 enum fcl_t { fcl_functional, fcl_c99 }; 6930 extern tree finish_compound_literal (tree, tree, tsubst_flags_t, fcl_t = fcl_functional); 6931 extern tree finish_fname (tree); 6932 extern void finish_translation_unit (void); 6933 extern tree finish_template_type_parm (tree, tree); 6934 extern tree finish_template_template_parm (tree, tree); 6935 extern tree begin_class_definition (tree); 6936 extern void finish_template_decl (tree); 6937 extern tree finish_template_type (tree, tree, int); 6938 extern tree finish_base_specifier (tree, tree, bool); 6939 extern void finish_member_declaration (tree); 6940 extern bool outer_automatic_var_p (tree); 6941 extern tree process_outer_var_ref (tree, tsubst_flags_t, bool force_use = false); 6942 extern cp_expr finish_id_expression (tree, tree, tree, 6943 cp_id_kind *, 6944 bool, bool, bool *, 6945 bool, bool, bool, bool, 6946 const char **, 6947 location_t); 6948 extern tree finish_typeof (tree); 6949 extern tree finish_underlying_type (tree); 6950 extern tree calculate_bases (tree, tsubst_flags_t); 6951 extern tree finish_bases (tree, bool); 6952 extern tree calculate_direct_bases (tree, tsubst_flags_t); 6953 extern tree finish_offsetof (tree, tree, location_t); 6954 extern void finish_decl_cleanup (tree, tree); 6955 extern void finish_eh_cleanup (tree); 6956 extern void emit_associated_thunks (tree); 6957 extern void finish_mem_initializers (tree); 6958 extern tree check_template_template_default_arg (tree); 6959 extern bool expand_or_defer_fn_1 (tree); 6960 extern void expand_or_defer_fn (tree); 6961 extern void add_typedef_to_current_template_for_access_check (tree, tree, 6962 location_t); 6963 extern void check_accessibility_of_qualified_id (tree, tree, tree); 6964 extern tree finish_qualified_id_expr (tree, tree, bool, bool, 6965 bool, bool, tsubst_flags_t); 6966 extern void simplify_aggr_init_expr (tree *); 6967 extern void finalize_nrv (tree *, tree, tree); 6968 extern tree omp_reduction_id (enum tree_code, tree, tree); 6969 extern tree cp_remove_omp_priv_cleanup_stmt (tree *, int *, void *); 6970 extern void cp_check_omp_declare_reduction (tree); 6971 extern void finish_omp_declare_simd_methods (tree); 6972 extern tree finish_omp_clauses (tree, enum c_omp_region_type); 6973 extern tree push_omp_privatization_clauses (bool); 6974 extern void pop_omp_privatization_clauses (tree); 6975 extern void save_omp_privatization_clauses (vec<tree> &); 6976 extern void restore_omp_privatization_clauses (vec<tree> &); 6977 extern void finish_omp_threadprivate (tree); 6978 extern tree begin_omp_structured_block (void); 6979 extern tree finish_omp_structured_block (tree); 6980 extern tree finish_oacc_data (tree, tree); 6981 extern tree finish_oacc_host_data (tree, tree); 6982 extern tree finish_omp_construct (enum tree_code, tree, tree); 6983 extern tree begin_omp_parallel (void); 6984 extern tree finish_omp_parallel (tree, tree); 6985 extern tree begin_omp_task (void); 6986 extern tree finish_omp_task (tree, tree); 6987 extern tree finish_omp_for (location_t, enum tree_code, 6988 tree, tree, tree, tree, tree, 6989 tree, tree, vec<tree> *, tree); 6990 extern void finish_omp_atomic (enum tree_code, enum tree_code, 6991 tree, tree, tree, tree, tree, 6992 bool); 6993 extern void finish_omp_barrier (void); 6994 extern void finish_omp_flush (void); 6995 extern void finish_omp_taskwait (void); 6996 extern void finish_omp_taskyield (void); 6997 extern void finish_omp_cancel (tree); 6998 extern void finish_omp_cancellation_point (tree); 6999 extern tree omp_privatize_field (tree, bool); 7000 extern tree begin_transaction_stmt (location_t, tree *, int); 7001 extern void finish_transaction_stmt (tree, tree, int, tree); 7002 extern tree build_transaction_expr (location_t, tree, int, tree); 7003 extern bool cxx_omp_create_clause_info (tree, tree, bool, bool, 7004 bool, bool); 7005 extern tree baselink_for_fns (tree); 7006 extern void finish_static_assert (tree, tree, location_t, 7007 bool); 7008 extern tree finish_decltype_type (tree, bool, tsubst_flags_t); 7009 extern tree finish_trait_expr (enum cp_trait_kind, tree, tree); 7010 extern tree build_lambda_expr (void); 7011 extern tree build_lambda_object (tree); 7012 extern tree begin_lambda_type (tree); 7013 extern tree lambda_capture_field_type (tree, bool, bool); 7014 extern tree lambda_return_type (tree); 7015 extern tree lambda_proxy_type (tree); 7016 extern tree lambda_function (tree); 7017 extern void apply_deduced_return_type (tree, tree); 7018 extern tree add_capture (tree, tree, tree, bool, bool); 7019 extern tree add_default_capture (tree, tree, tree); 7020 extern void insert_capture_proxy (tree); 7021 extern void insert_pending_capture_proxies (void); 7022 extern bool is_capture_proxy (tree); 7023 extern bool is_normal_capture_proxy (tree); 7024 extern bool is_constant_capture_proxy (tree); 7025 extern void register_capture_members (tree); 7026 extern tree lambda_expr_this_capture (tree, int); 7027 extern void maybe_generic_this_capture (tree, tree); 7028 extern tree maybe_resolve_dummy (tree, bool); 7029 extern tree current_nonlambda_function (void); 7030 extern tree nonlambda_method_basetype (void); 7031 extern tree current_nonlambda_scope (void); 7032 extern tree current_lambda_expr (void); 7033 extern bool generic_lambda_fn_p (tree); 7034 extern tree do_dependent_capture (tree, bool = false); 7035 extern bool lambda_fn_in_template_p (tree); 7036 extern void maybe_add_lambda_conv_op (tree); 7037 extern bool is_lambda_ignored_entity (tree); 7038 extern bool lambda_static_thunk_p (tree); 7039 extern tree finish_builtin_launder (location_t, tree, 7040 tsubst_flags_t); 7041 extern void start_lambda_scope (tree); 7042 extern void record_lambda_scope (tree); 7043 extern void record_null_lambda_scope (tree); 7044 extern void finish_lambda_scope (void); 7045 extern tree start_lambda_function (tree fn, tree lambda_expr); 7046 extern void finish_lambda_function (tree body); 7047 7048 /* in tree.c */ 7049 extern int cp_tree_operand_length (const_tree); 7050 extern int cp_tree_code_length (enum tree_code); 7051 extern void cp_free_lang_data (tree t); 7052 extern tree force_target_expr (tree, tree, tsubst_flags_t); 7053 extern tree build_target_expr_with_type (tree, tree, tsubst_flags_t); 7054 extern void lang_check_failed (const char *, int, 7055 const char *) ATTRIBUTE_NORETURN 7056 ATTRIBUTE_COLD; 7057 extern tree stabilize_expr (tree, tree *); 7058 extern void stabilize_call (tree, tree *); 7059 extern bool stabilize_init (tree, tree *); 7060 extern tree add_stmt_to_compound (tree, tree); 7061 extern void init_tree (void); 7062 extern bool pod_type_p (const_tree); 7063 extern bool layout_pod_type_p (const_tree); 7064 extern bool std_layout_type_p (const_tree); 7065 extern bool trivial_type_p (const_tree); 7066 extern bool trivially_copyable_p (const_tree); 7067 extern bool type_has_unique_obj_representations (const_tree); 7068 extern bool scalarish_type_p (const_tree); 7069 extern bool type_has_nontrivial_default_init (const_tree); 7070 extern bool type_has_nontrivial_copy_init (const_tree); 7071 extern void maybe_warn_parm_abi (tree, location_t); 7072 extern bool class_tmpl_impl_spec_p (const_tree); 7073 extern int zero_init_p (const_tree); 7074 extern bool check_abi_tag_redeclaration (const_tree, const_tree, 7075 const_tree); 7076 extern bool check_abi_tag_args (tree, tree); 7077 extern tree strip_typedefs (tree, bool * = NULL); 7078 extern tree strip_typedefs_expr (tree, bool * = NULL); 7079 extern tree copy_binfo (tree, tree, tree, 7080 tree *, int); 7081 extern int member_p (const_tree); 7082 extern cp_lvalue_kind real_lvalue_p (const_tree); 7083 extern cp_lvalue_kind lvalue_kind (const_tree); 7084 extern bool glvalue_p (const_tree); 7085 extern bool obvalue_p (const_tree); 7086 extern bool xvalue_p (const_tree); 7087 extern bool bitfield_p (const_tree); 7088 extern tree cp_stabilize_reference (tree); 7089 extern bool builtin_valid_in_constant_expr_p (const_tree); 7090 extern tree build_min (enum tree_code, tree, ...); 7091 extern tree build_min_nt_loc (location_t, enum tree_code, 7092 ...); 7093 extern tree build_min_non_dep (enum tree_code, tree, ...); 7094 extern tree build_min_non_dep_op_overload (enum tree_code, tree, tree, ...); 7095 extern tree build_min_nt_call_vec (tree, vec<tree, va_gc> *); 7096 extern tree build_min_non_dep_call_vec (tree, tree, vec<tree, va_gc> *); 7097 extern vec<tree, va_gc>* vec_copy_and_insert (vec<tree, va_gc>*, tree, unsigned); 7098 extern tree build_cplus_new (tree, tree, tsubst_flags_t); 7099 extern tree build_aggr_init_expr (tree, tree); 7100 extern tree get_target_expr (tree); 7101 extern tree get_target_expr_sfinae (tree, tsubst_flags_t); 7102 extern tree build_cplus_array_type (tree, tree); 7103 extern tree build_array_of_n_type (tree, int); 7104 extern bool array_of_runtime_bound_p (tree); 7105 extern bool vla_type_p (tree); 7106 extern tree build_array_copy (tree); 7107 extern tree build_vec_init_expr (tree, tree, tsubst_flags_t); 7108 extern void diagnose_non_constexpr_vec_init (tree); 7109 extern tree hash_tree_cons (tree, tree, tree); 7110 extern tree hash_tree_chain (tree, tree); 7111 extern tree build_qualified_name (tree, tree, tree, bool); 7112 extern tree build_ref_qualified_type (tree, cp_ref_qualifier); 7113 inline tree ovl_first (tree) ATTRIBUTE_PURE; 7114 extern tree ovl_make (tree fn, 7115 tree next = NULL_TREE); 7116 extern tree ovl_insert (tree fn, tree maybe_ovl, 7117 bool using_p = false); 7118 extern tree ovl_skip_hidden (tree) ATTRIBUTE_PURE; 7119 extern void lookup_mark (tree lookup, bool val); 7120 extern tree lookup_add (tree fns, tree lookup); 7121 extern tree lookup_maybe_add (tree fns, tree lookup, 7122 bool deduping); 7123 extern void lookup_keep (tree lookup, bool keep); 7124 extern void lookup_list_keep (tree list, bool keep); 7125 extern int is_overloaded_fn (tree) ATTRIBUTE_PURE; 7126 extern bool really_overloaded_fn (tree) ATTRIBUTE_PURE; 7127 extern tree dependent_name (tree); 7128 extern tree get_fns (tree) ATTRIBUTE_PURE; 7129 extern tree get_first_fn (tree) ATTRIBUTE_PURE; 7130 extern tree ovl_scope (tree); 7131 extern const char *cxx_printable_name (tree, int); 7132 extern const char *cxx_printable_name_translate (tree, int); 7133 extern tree canonical_eh_spec (tree); 7134 extern tree build_exception_variant (tree, tree); 7135 extern tree bind_template_template_parm (tree, tree); 7136 extern tree array_type_nelts_total (tree); 7137 extern tree array_type_nelts_top (tree); 7138 extern tree break_out_target_exprs (tree, bool = false); 7139 extern tree build_ctor_subob_ref (tree, tree, tree); 7140 extern tree replace_placeholders (tree, tree, bool * = NULL); 7141 extern bool find_placeholders (tree); 7142 extern tree get_type_decl (tree); 7143 extern tree decl_namespace_context (tree); 7144 extern bool decl_anon_ns_mem_p (const_tree); 7145 extern tree lvalue_type (tree); 7146 extern tree error_type (tree); 7147 extern int varargs_function_p (const_tree); 7148 extern bool cp_tree_equal (tree, tree); 7149 extern tree no_linkage_check (tree, bool); 7150 extern void debug_binfo (tree); 7151 extern tree build_dummy_object (tree); 7152 extern tree maybe_dummy_object (tree, tree *); 7153 extern int is_dummy_object (const_tree); 7154 extern const struct attribute_spec cxx_attribute_table[]; 7155 extern tree make_ptrmem_cst (tree, tree); 7156 extern tree cp_build_type_attribute_variant (tree, tree); 7157 extern tree cp_build_reference_type (tree, bool); 7158 extern tree move (tree); 7159 extern tree cp_build_qualified_type_real (tree, int, tsubst_flags_t); 7160 #define cp_build_qualified_type(TYPE, QUALS) \ 7161 cp_build_qualified_type_real ((TYPE), (QUALS), tf_warning_or_error) 7162 extern bool cv_qualified_p (const_tree); 7163 extern tree cv_unqualified (tree); 7164 extern special_function_kind special_function_p (const_tree); 7165 extern int count_trees (tree); 7166 extern int char_type_p (tree); 7167 extern void verify_stmt_tree (tree); 7168 extern linkage_kind decl_linkage (tree); 7169 extern duration_kind decl_storage_duration (tree); 7170 extern tree cp_walk_subtrees (tree*, int*, walk_tree_fn, 7171 void*, hash_set<tree> *); 7172 #define cp_walk_tree(tp,func,data,pset) \ 7173 walk_tree_1 (tp, func, data, pset, cp_walk_subtrees) 7174 #define cp_walk_tree_without_duplicates(tp,func,data) \ 7175 walk_tree_without_duplicates_1 (tp, func, data, cp_walk_subtrees) 7176 extern tree rvalue (tree); 7177 extern tree convert_bitfield_to_declared_type (tree); 7178 extern tree cp_save_expr (tree); 7179 extern bool cast_valid_in_integral_constant_expression_p (tree); 7180 extern bool cxx_type_hash_eq (const_tree, const_tree); 7181 extern tree cxx_copy_lang_qualifiers (const_tree, const_tree); 7182 7183 extern void cxx_print_statistics (void); 7184 extern bool maybe_warn_zero_as_null_pointer_constant (tree, location_t); 7185 extern void cp_warn_deprecated_use (tree); 7186 7187 /* in ptree.c */ 7188 extern void cxx_print_xnode (FILE *, tree, int); 7189 extern void cxx_print_decl (FILE *, tree, int); 7190 extern void cxx_print_type (FILE *, tree, int); 7191 extern void cxx_print_identifier (FILE *, tree, int); 7192 extern void cxx_print_error_function (diagnostic_context *, 7193 const char *, 7194 struct diagnostic_info *); 7195 7196 /* in typeck.c */ 7197 extern bool cxx_mark_addressable (tree, bool = false); 7198 extern int string_conv_p (const_tree, const_tree, int); 7199 extern tree cp_truthvalue_conversion (tree); 7200 extern tree condition_conversion (tree); 7201 extern tree require_complete_type (tree); 7202 extern tree require_complete_type_sfinae (tree, tsubst_flags_t); 7203 extern tree complete_type (tree); 7204 extern tree complete_type_or_else (tree, tree); 7205 extern tree complete_type_or_maybe_complain (tree, tree, tsubst_flags_t); 7206 inline bool type_unknown_p (const_tree); 7207 enum { ce_derived, ce_type, ce_normal, ce_exact }; 7208 extern bool comp_except_specs (const_tree, const_tree, int); 7209 extern bool comptypes (tree, tree, int); 7210 extern bool same_type_ignoring_top_level_qualifiers_p (tree, tree); 7211 extern bool compparms (const_tree, const_tree); 7212 extern int comp_cv_qualification (const_tree, const_tree); 7213 extern int comp_cv_qualification (int, int); 7214 extern int comp_cv_qual_signature (tree, tree); 7215 extern tree cxx_sizeof_or_alignof_expr (tree, enum tree_code, bool); 7216 extern tree cxx_sizeof_or_alignof_type (tree, enum tree_code, bool, bool); 7217 extern tree cxx_alignas_expr (tree); 7218 extern tree cxx_sizeof_nowarn (tree); 7219 extern tree is_bitfield_expr_with_lowered_type (const_tree); 7220 extern tree unlowered_expr_type (const_tree); 7221 extern tree decay_conversion (tree, 7222 tsubst_flags_t, 7223 bool = true); 7224 extern tree build_class_member_access_expr (cp_expr, tree, tree, bool, 7225 tsubst_flags_t); 7226 extern tree finish_class_member_access_expr (cp_expr, tree, bool, 7227 tsubst_flags_t); 7228 extern tree build_x_indirect_ref (location_t, tree, 7229 ref_operator, tsubst_flags_t); 7230 extern tree cp_build_indirect_ref (tree, ref_operator, 7231 tsubst_flags_t); 7232 extern tree cp_build_fold_indirect_ref (tree); 7233 extern tree build_array_ref (location_t, tree, tree); 7234 extern tree cp_build_array_ref (location_t, tree, tree, 7235 tsubst_flags_t); 7236 extern tree get_member_function_from_ptrfunc (tree *, tree, tsubst_flags_t); 7237 extern tree cp_build_function_call_nary (tree, tsubst_flags_t, ...) 7238 ATTRIBUTE_SENTINEL; 7239 extern tree cp_build_function_call_vec (tree, vec<tree, va_gc> **, 7240 tsubst_flags_t); 7241 extern tree build_x_binary_op (location_t, 7242 enum tree_code, tree, 7243 enum tree_code, tree, 7244 enum tree_code, tree *, 7245 tsubst_flags_t); 7246 extern tree build_x_array_ref (location_t, tree, tree, 7247 tsubst_flags_t); 7248 extern tree build_x_unary_op (location_t, 7249 enum tree_code, cp_expr, 7250 tsubst_flags_t); 7251 extern tree cp_build_addressof (location_t, tree, 7252 tsubst_flags_t); 7253 extern tree cp_build_addr_expr (tree, tsubst_flags_t); 7254 extern tree cp_build_unary_op (enum tree_code, tree, bool, 7255 tsubst_flags_t); 7256 extern tree genericize_compound_lvalue (tree); 7257 extern tree unary_complex_lvalue (enum tree_code, tree); 7258 extern tree build_x_conditional_expr (location_t, tree, tree, tree, 7259 tsubst_flags_t); 7260 extern tree build_x_compound_expr_from_list (tree, expr_list_kind, 7261 tsubst_flags_t); 7262 extern tree build_x_compound_expr_from_vec (vec<tree, va_gc> *, 7263 const char *, tsubst_flags_t); 7264 extern tree build_x_compound_expr (location_t, tree, tree, 7265 tsubst_flags_t); 7266 extern tree build_compound_expr (location_t, tree, tree); 7267 extern tree cp_build_compound_expr (tree, tree, tsubst_flags_t); 7268 extern tree build_static_cast (tree, tree, tsubst_flags_t); 7269 extern tree build_reinterpret_cast (tree, tree, tsubst_flags_t); 7270 extern tree build_const_cast (tree, tree, tsubst_flags_t); 7271 extern tree build_c_cast (location_t, tree, tree); 7272 extern cp_expr build_c_cast (location_t loc, tree type, 7273 cp_expr expr); 7274 extern tree cp_build_c_cast (tree, tree, tsubst_flags_t); 7275 extern cp_expr build_x_modify_expr (location_t, tree, 7276 enum tree_code, tree, 7277 tsubst_flags_t); 7278 extern tree cp_build_modify_expr (location_t, tree, 7279 enum tree_code, tree, 7280 tsubst_flags_t); 7281 extern tree convert_for_initialization (tree, tree, tree, int, 7282 impl_conv_rhs, tree, int, 7283 tsubst_flags_t); 7284 extern int comp_ptr_ttypes (tree, tree); 7285 extern bool comp_ptr_ttypes_const (tree, tree); 7286 extern bool error_type_p (const_tree); 7287 extern bool ptr_reasonably_similar (const_tree, const_tree); 7288 extern tree build_ptrmemfunc (tree, tree, int, bool, 7289 tsubst_flags_t); 7290 extern int cp_type_quals (const_tree); 7291 extern int type_memfn_quals (const_tree); 7292 extern cp_ref_qualifier type_memfn_rqual (const_tree); 7293 extern tree apply_memfn_quals (tree, cp_cv_quals, cp_ref_qualifier); 7294 extern bool cp_has_mutable_p (const_tree); 7295 extern bool at_least_as_qualified_p (const_tree, const_tree); 7296 extern void cp_apply_type_quals_to_decl (int, tree); 7297 extern tree build_ptrmemfunc1 (tree, tree, tree); 7298 extern void expand_ptrmemfunc_cst (tree, tree *, tree *); 7299 extern tree type_after_usual_arithmetic_conversions (tree, tree); 7300 extern tree common_pointer_type (tree, tree); 7301 extern tree composite_pointer_type (tree, tree, tree, tree, 7302 composite_pointer_operation, 7303 tsubst_flags_t); 7304 extern tree merge_types (tree, tree); 7305 extern tree strip_array_domain (tree); 7306 extern tree check_return_expr (tree, bool *); 7307 extern tree cp_build_binary_op (location_t, 7308 enum tree_code, tree, tree, 7309 tsubst_flags_t); 7310 extern tree build_x_vec_perm_expr (location_t, 7311 tree, tree, tree, 7312 tsubst_flags_t); 7313 #define cxx_sizeof(T) cxx_sizeof_or_alignof_type (T, SIZEOF_EXPR, false, true) 7314 extern tree build_simple_component_ref (tree, tree); 7315 extern tree build_ptrmemfunc_access_expr (tree, tree); 7316 extern tree build_address (tree); 7317 extern tree build_nop (tree, tree); 7318 extern tree non_reference (tree); 7319 extern tree lookup_anon_field (tree, tree); 7320 extern bool invalid_nonstatic_memfn_p (location_t, tree, 7321 tsubst_flags_t); 7322 extern tree convert_member_func_to_ptr (tree, tree, tsubst_flags_t); 7323 extern tree convert_ptrmem (tree, tree, bool, bool, 7324 tsubst_flags_t); 7325 extern int lvalue_or_else (tree, enum lvalue_use, 7326 tsubst_flags_t); 7327 extern void check_template_keyword (tree); 7328 extern bool check_raw_literal_operator (const_tree decl); 7329 extern bool check_literal_operator_args (const_tree, bool *, bool *); 7330 extern void maybe_warn_about_useless_cast (tree, tree, tsubst_flags_t); 7331 extern tree cp_perform_integral_promotions (tree, tsubst_flags_t); 7332 7333 extern tree finish_left_unary_fold_expr (tree, int); 7334 extern tree finish_right_unary_fold_expr (tree, int); 7335 extern tree finish_binary_fold_expr (tree, tree, int); 7336 7337 /* in typeck2.c */ 7338 extern void require_complete_eh_spec_types (tree, tree); 7339 extern void cxx_incomplete_type_diagnostic (location_t, const_tree, 7340 const_tree, diagnostic_t); 7341 inline void 7342 cxx_incomplete_type_diagnostic (const_tree value, const_tree type, 7343 diagnostic_t diag_kind) 7344 { 7345 cxx_incomplete_type_diagnostic (EXPR_LOC_OR_LOC (value, input_location), 7346 value, type, diag_kind); 7347 } 7348 7349 extern void cxx_incomplete_type_error (location_t, const_tree, 7350 const_tree); 7351 inline void 7352 cxx_incomplete_type_error (const_tree value, const_tree type) 7353 { 7354 cxx_incomplete_type_diagnostic (value, type, DK_ERROR); 7355 } 7356 7357 extern void cxx_incomplete_type_inform (const_tree); 7358 extern tree error_not_base_type (tree, tree); 7359 extern tree binfo_or_else (tree, tree); 7360 extern void cxx_readonly_error (tree, enum lvalue_use); 7361 extern void complete_type_check_abstract (tree); 7362 extern int abstract_virtuals_error (tree, tree); 7363 extern int abstract_virtuals_error (abstract_class_use, tree); 7364 extern int abstract_virtuals_error_sfinae (tree, tree, tsubst_flags_t); 7365 extern int abstract_virtuals_error_sfinae (abstract_class_use, tree, tsubst_flags_t); 7366 7367 extern tree store_init_value (tree, tree, vec<tree, va_gc>**, int); 7368 extern tree split_nonconstant_init (tree, tree); 7369 extern bool check_narrowing (tree, tree, tsubst_flags_t); 7370 extern tree digest_init (tree, tree, tsubst_flags_t); 7371 extern tree digest_init_flags (tree, tree, int, tsubst_flags_t); 7372 extern tree digest_nsdmi_init (tree, tree, tsubst_flags_t); 7373 extern tree build_scoped_ref (tree, tree, tree *); 7374 extern tree build_x_arrow (location_t, tree, 7375 tsubst_flags_t); 7376 extern tree build_m_component_ref (tree, tree, tsubst_flags_t); 7377 extern tree build_functional_cast (tree, tree, tsubst_flags_t); 7378 extern tree add_exception_specifier (tree, tree, int); 7379 extern tree merge_exception_specifiers (tree, tree); 7380 7381 /* in mangle.c */ 7382 extern void init_mangle (void); 7383 extern void mangle_decl (tree); 7384 extern const char *mangle_type_string (tree); 7385 extern tree mangle_typeinfo_for_type (tree); 7386 extern tree mangle_typeinfo_string_for_type (tree); 7387 extern tree mangle_vtbl_for_type (tree); 7388 extern tree mangle_vtt_for_type (tree); 7389 extern tree mangle_ctor_vtbl_for_type (tree, tree); 7390 extern tree mangle_thunk (tree, int, tree, tree, tree); 7391 extern tree mangle_guard_variable (tree); 7392 extern tree mangle_tls_init_fn (tree); 7393 extern tree mangle_tls_wrapper_fn (tree); 7394 extern bool decl_tls_wrapper_p (tree); 7395 extern tree mangle_ref_init_variable (tree); 7396 extern char * get_mangled_vtable_map_var_name (tree); 7397 extern bool mangle_return_type_p (tree); 7398 extern tree mangle_decomp (tree, vec<tree> &); 7399 7400 /* in dump.c */ 7401 extern bool cp_dump_tree (void *, tree); 7402 7403 /* In cp/cp-objcp-common.c. */ 7404 7405 extern alias_set_type cxx_get_alias_set (tree); 7406 extern bool cxx_warn_unused_global_decl (const_tree); 7407 extern size_t cp_tree_size (enum tree_code); 7408 extern bool cp_var_mod_type_p (tree, tree); 7409 extern void cxx_initialize_diagnostics (diagnostic_context *); 7410 extern int cxx_types_compatible_p (tree, tree); 7411 extern void init_shadowed_var_for_decl (void); 7412 extern bool cxx_block_may_fallthru (const_tree); 7413 7414 /* in cp-gimplify.c */ 7415 extern int cp_gimplify_expr (tree *, gimple_seq *, 7416 gimple_seq *); 7417 extern void cp_genericize (tree); 7418 extern bool cxx_omp_const_qual_no_mutable (tree); 7419 extern enum omp_clause_default_kind cxx_omp_predetermined_sharing_1 (tree); 7420 extern enum omp_clause_default_kind cxx_omp_predetermined_sharing (tree); 7421 extern tree cxx_omp_clause_default_ctor (tree, tree, tree); 7422 extern tree cxx_omp_clause_copy_ctor (tree, tree, tree); 7423 extern tree cxx_omp_clause_assign_op (tree, tree, tree); 7424 extern tree cxx_omp_clause_dtor (tree, tree); 7425 extern void cxx_omp_finish_clause (tree, gimple_seq *); 7426 extern bool cxx_omp_privatize_by_reference (const_tree); 7427 extern bool cxx_omp_disregard_value_expr (tree, bool); 7428 extern void cp_fold_function (tree); 7429 extern tree cp_fully_fold (tree); 7430 extern void clear_fold_cache (void); 7431 7432 /* in name-lookup.c */ 7433 extern void suggest_alternatives_for (location_t, tree, bool); 7434 extern bool suggest_alternative_in_explicit_scope (location_t, tree, tree); 7435 extern tree strip_using_decl (tree); 7436 7437 /* Tell the binding oracle what kind of binding we are looking for. */ 7438 7439 enum cp_oracle_request 7440 { 7441 CP_ORACLE_IDENTIFIER 7442 }; 7443 7444 /* If this is non-NULL, then it is a "binding oracle" which can lazily 7445 create bindings when needed by the C compiler. The oracle is told 7446 the name and type of the binding to create. It can call pushdecl 7447 or the like to ensure the binding is visible; or do nothing, 7448 leaving the binding untouched. c-decl.c takes note of when the 7449 oracle has been called and will not call it again if it fails to 7450 create a given binding. */ 7451 7452 typedef void cp_binding_oracle_function (enum cp_oracle_request, tree identifier); 7453 7454 extern cp_binding_oracle_function *cp_binding_oracle; 7455 7456 /* in constraint.cc */ 7457 extern void init_constraint_processing (); 7458 extern bool constraint_p (tree); 7459 extern tree conjoin_constraints (tree, tree); 7460 extern tree conjoin_constraints (tree); 7461 extern tree get_constraints (tree); 7462 extern void set_constraints (tree, tree); 7463 extern void remove_constraints (tree); 7464 extern tree current_template_constraints (void); 7465 extern tree associate_classtype_constraints (tree); 7466 extern tree build_constraints (tree, tree); 7467 extern tree get_shorthand_constraints (tree); 7468 extern tree build_concept_check (tree, tree, tree = NULL_TREE); 7469 extern tree build_constrained_parameter (tree, tree, tree = NULL_TREE); 7470 extern tree make_constrained_auto (tree, tree); 7471 extern void placeholder_extract_concept_and_args (tree, tree&, tree&); 7472 extern bool equivalent_placeholder_constraints (tree, tree); 7473 extern hashval_t hash_placeholder_constraint (tree); 7474 extern bool deduce_constrained_parameter (tree, tree&, tree&); 7475 extern tree resolve_constraint_check (tree); 7476 extern tree check_function_concept (tree); 7477 extern tree finish_template_introduction (tree, tree); 7478 extern bool valid_requirements_p (tree); 7479 extern tree finish_concept_name (tree); 7480 extern tree finish_shorthand_constraint (tree, tree); 7481 extern tree finish_requires_expr (tree, tree); 7482 extern tree finish_simple_requirement (tree); 7483 extern tree finish_type_requirement (tree); 7484 extern tree finish_compound_requirement (tree, tree, bool); 7485 extern tree finish_nested_requirement (tree); 7486 extern void check_constrained_friend (tree, tree); 7487 extern tree tsubst_requires_expr (tree, tree, tsubst_flags_t, tree); 7488 extern tree tsubst_constraint (tree, tree, tsubst_flags_t, tree); 7489 extern tree tsubst_constraint_info (tree, tree, tsubst_flags_t, tree); 7490 extern bool function_concept_check_p (tree); 7491 extern tree normalize_expression (tree); 7492 extern tree expand_concept (tree, tree); 7493 extern bool expanding_concept (); 7494 extern tree evaluate_constraints (tree, tree); 7495 extern tree evaluate_function_concept (tree, tree); 7496 extern tree evaluate_variable_concept (tree, tree); 7497 extern tree evaluate_constraint_expression (tree, tree); 7498 extern bool constraints_satisfied_p (tree); 7499 extern bool constraints_satisfied_p (tree, tree); 7500 extern tree lookup_constraint_satisfaction (tree, tree); 7501 extern tree memoize_constraint_satisfaction (tree, tree, tree); 7502 extern tree lookup_concept_satisfaction (tree, tree); 7503 extern tree memoize_concept_satisfaction (tree, tree, tree); 7504 extern tree get_concept_expansion (tree, tree); 7505 extern tree save_concept_expansion (tree, tree, tree); 7506 extern bool* lookup_subsumption_result (tree, tree); 7507 extern bool save_subsumption_result (tree, tree, bool); 7508 7509 extern bool equivalent_constraints (tree, tree); 7510 extern bool equivalently_constrained (tree, tree); 7511 extern bool subsumes_constraints (tree, tree); 7512 extern bool strictly_subsumes (tree, tree); 7513 extern int more_constrained (tree, tree); 7514 7515 extern void diagnose_constraints (location_t, tree, tree); 7516 7517 /* in logic.cc */ 7518 extern tree decompose_conclusions (tree); 7519 extern bool subsumes (tree, tree); 7520 7521 /* In class.c */ 7522 extern void cp_finish_injected_record_type (tree); 7523 7524 /* in vtable-class-hierarchy.c */ 7525 extern void vtv_compute_class_hierarchy_transitive_closure (void); 7526 extern void vtv_generate_init_routine (void); 7527 extern void vtv_save_class_info (tree); 7528 extern void vtv_recover_class_info (void); 7529 extern void vtv_build_vtable_verify_fndecl (void); 7530 7531 /* In constexpr.c */ 7532 extern void fini_constexpr (void); 7533 extern bool literal_type_p (tree); 7534 extern tree register_constexpr_fundef (tree, tree); 7535 extern bool is_valid_constexpr_fn (tree, bool); 7536 extern bool check_constexpr_ctor_body (tree, tree, bool); 7537 extern tree constexpr_fn_retval (tree); 7538 extern tree ensure_literal_type_for_constexpr_object (tree); 7539 extern bool potential_constant_expression (tree); 7540 extern bool is_constant_expression (tree); 7541 extern bool is_nondependent_constant_expression (tree); 7542 extern bool is_nondependent_static_init_expression (tree); 7543 extern bool is_static_init_expression (tree); 7544 extern bool potential_rvalue_constant_expression (tree); 7545 extern bool require_potential_constant_expression (tree); 7546 extern bool require_constant_expression (tree); 7547 extern bool require_rvalue_constant_expression (tree); 7548 extern bool require_potential_rvalue_constant_expression (tree); 7549 extern tree cxx_constant_value (tree, tree = NULL_TREE); 7550 extern tree cxx_constant_init (tree, tree = NULL_TREE); 7551 extern tree maybe_constant_value (tree, tree = NULL_TREE); 7552 extern tree maybe_constant_init (tree, tree = NULL_TREE); 7553 extern tree fold_non_dependent_expr (tree, tsubst_flags_t = tf_none); 7554 extern tree fold_simple (tree); 7555 extern bool is_sub_constant_expr (tree); 7556 extern bool reduced_constant_expression_p (tree); 7557 extern bool is_instantiation_of_constexpr (tree); 7558 extern bool var_in_constexpr_fn (tree); 7559 extern bool var_in_maybe_constexpr_fn (tree); 7560 extern void explain_invalid_constexpr_fn (tree); 7561 extern vec<tree> cx_error_context (void); 7562 extern tree fold_sizeof_expr (tree); 7563 extern void clear_cv_and_fold_caches (void); 7564 7565 /* In cp-ubsan.c */ 7566 extern void cp_ubsan_maybe_instrument_member_call (tree); 7567 extern void cp_ubsan_instrument_member_accesses (tree *); 7568 extern tree cp_ubsan_maybe_instrument_downcast (location_t, tree, tree, tree); 7569 extern tree cp_ubsan_maybe_instrument_cast_to_vbase (location_t, tree, tree); 7570 extern void cp_ubsan_maybe_initialize_vtbl_ptrs (tree); 7571 7572 /* Inline bodies. */ 7573 7574 inline tree 7575 ovl_first (tree node) 7576 { 7577 while (TREE_CODE (node) == OVERLOAD) 7578 node = OVL_FUNCTION (node); 7579 return node; 7580 } 7581 7582 inline bool 7583 type_unknown_p (const_tree expr) 7584 { 7585 return TREE_TYPE (expr) == unknown_type_node; 7586 } 7587 7588 inline hashval_t 7589 named_decl_hash::hash (const value_type decl) 7590 { 7591 tree name = OVL_NAME (decl); 7592 return name ? IDENTIFIER_HASH_VALUE (name) : 0; 7593 } 7594 7595 inline bool 7596 named_decl_hash::equal (const value_type existing, compare_type candidate) 7597 { 7598 tree name = OVL_NAME (existing); 7599 return candidate == name; 7600 } 7601 7602 inline bool 7603 null_node_p (const_tree expr) 7604 { 7605 STRIP_ANY_LOCATION_WRAPPER (expr); 7606 return expr == null_node; 7607 } 7608 7609 #if CHECKING_P 7610 namespace selftest { 7611 extern void run_cp_tests (void); 7612 7613 /* Declarations for specific families of tests within cp, 7614 by source file, in alphabetical order. */ 7615 extern void cp_pt_c_tests (); 7616 extern void cp_tree_c_tests (void); 7617 } // namespace selftest 7618 #endif /* #if CHECKING_P */ 7619 7620 /* -- end of C++ */ 7621 7622 #endif /* ! GCC_CP_TREE_H */ 7623