1/* Definitions for C++ parsing and type checking. 2 Copyright (C) 1987-2015 Free Software Foundation, Inc. 3 Contributed by Michael Tiemann (tiemann@cygnus.com) 4 5This file is part of GCC. 6 7GCC is free software; you can redistribute it and/or modify 8it under the terms of the GNU General Public License as published by 9the Free Software Foundation; either version 3, or (at your option) 10any later version. 11 12GCC is distributed in the hope that it will be useful, 13but WITHOUT ANY WARRANTY; without even the implied warranty of 14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15GNU General Public License for more details. 16 17You should have received a copy of the GNU General Public License 18along with GCC; see the file COPYING3. If not see 19<http://www.gnu.org/licenses/>. */ 20 21#ifndef GCC_CP_TREE_H 22#define GCC_CP_TREE_H 23 24#include "ggc.h" 25#include "hashtab.h" 26#include "hash-set.h" 27#include "vec.h" 28#include "machmode.h" 29#include "tm.h" 30#include "hard-reg-set.h" 31#include "input.h" 32#include "function.h" 33#include "hash-map.h" 34 35/* In order for the format checking to accept the C++ front end 36 diagnostic framework extensions, you must include this file before 37 diagnostic-core.h, not after. We override the definition of GCC_DIAG_STYLE 38 in c-common.h. */ 39#undef GCC_DIAG_STYLE 40#define GCC_DIAG_STYLE __gcc_cxxdiag__ 41#if defined(GCC_DIAGNOSTIC_CORE_H) || defined (GCC_C_COMMON_H) 42#error \ 43In order for the format checking to accept the C++ front end diagnostic \ 44framework extensions, you must include this file before diagnostic-core.h and \ 45c-common.h, not after. 46#endif 47#include "c-family/c-common.h" 48#include "diagnostic.h" 49 50#include "name-lookup.h" 51 52/* Usage of TREE_LANG_FLAG_?: 53 0: IDENTIFIER_MARKED (IDENTIFIER_NODEs) 54 NEW_EXPR_USE_GLOBAL (in NEW_EXPR). 55 DELETE_EXPR_USE_GLOBAL (in DELETE_EXPR). 56 COMPOUND_EXPR_OVERLOADED (in COMPOUND_EXPR). 57 CLEANUP_P (in TRY_BLOCK) 58 AGGR_INIT_VIA_CTOR_P (in AGGR_INIT_EXPR) 59 PTRMEM_OK_P (in ADDR_EXPR, OFFSET_REF, SCOPE_REF) 60 PAREN_STRING_LITERAL (in STRING_CST) 61 DECL_GNU_TLS_P (in VAR_DECL) 62 KOENIG_LOOKUP_P (in CALL_EXPR) 63 STATEMENT_LIST_NO_SCOPE (in STATEMENT_LIST). 64 EXPR_STMT_STMT_EXPR_RESULT (in EXPR_STMT) 65 STMT_EXPR_NO_SCOPE (in STMT_EXPR) 66 BIND_EXPR_TRY_BLOCK (in BIND_EXPR) 67 TYPENAME_IS_ENUM_P (in TYPENAME_TYPE) 68 OMP_FOR_GIMPLIFYING_P (in OMP_FOR, OMP_SIMD and OMP_DISTRIBUTE) 69 BASELINK_QUALIFIED_P (in BASELINK) 70 TARGET_EXPR_IMPLICIT_P (in TARGET_EXPR) 71 TEMPLATE_PARM_PARAMETER_PACK (in TEMPLATE_PARM_INDEX) 72 TREE_INDIRECT_USING (in a TREE_LIST of using-directives) 73 ATTR_IS_DEPENDENT (in the TREE_LIST for an attribute) 74 ABI_TAG_IMPLICIT (in the TREE_LIST for the argument of abi_tag) 75 CONSTRUCTOR_IS_DIRECT_INIT (in CONSTRUCTOR) 76 LAMBDA_EXPR_CAPTURES_THIS_P (in LAMBDA_EXPR) 77 DECLTYPE_FOR_LAMBDA_CAPTURE (in DECLTYPE_TYPE) 78 VEC_INIT_EXPR_IS_CONSTEXPR (in VEC_INIT_EXPR) 79 DECL_OVERRIDE_P (in FUNCTION_DECL) 80 IMPLICIT_CONV_EXPR_DIRECT_INIT (in IMPLICIT_CONV_EXPR) 81 TRANSACTION_EXPR_IS_STMT (in TRANSACTION_EXPR) 82 CONVERT_EXPR_VBASE_PATH (in CONVERT_EXPR) 83 OVL_ARG_DEPENDENT (in OVERLOAD) 84 PACK_EXPANSION_LOCAL_P (in *_PACK_EXPANSION) 85 TINFO_HAS_ACCESS_ERRORS (in TEMPLATE_INFO) 86 SIZEOF_EXPR_TYPE_P (in SIZEOF_EXPR) 87 BLOCK_OUTER_CURLY_BRACE_P (in BLOCK) 88 1: IDENTIFIER_VIRTUAL_P (in IDENTIFIER_NODE) 89 TI_PENDING_TEMPLATE_FLAG. 90 TEMPLATE_PARMS_FOR_INLINE. 91 DELETE_EXPR_USE_VEC (in DELETE_EXPR). 92 (TREE_CALLS_NEW) (in _EXPR or _REF) (commented-out). 93 ICS_ELLIPSIS_FLAG (in _CONV) 94 DECL_INITIALIZED_P (in VAR_DECL) 95 TYPENAME_IS_CLASS_P (in TYPENAME_TYPE) 96 STMT_IS_FULL_EXPR_P (in _STMT) 97 TARGET_EXPR_LIST_INIT_P (in TARGET_EXPR) 98 LAMBDA_EXPR_MUTABLE_P (in LAMBDA_EXPR) 99 DECL_FINAL_P (in FUNCTION_DECL) 100 QUALIFIED_NAME_IS_TEMPLATE (in SCOPE_REF) 101 DECLTYPE_FOR_INIT_CAPTURE (in DECLTYPE_TYPE) 102 CONSTRUCTOR_NO_IMPLICIT_ZERO (in CONSTRUCTOR) 103 TINFO_USED_TEMPLATE_ID (in TEMPLATE_INFO) 104 PACK_EXPANSION_SIZEOF_P (in *_PACK_EXPANSION) 105 2: IDENTIFIER_OPNAME_P (in IDENTIFIER_NODE) 106 ICS_THIS_FLAG (in _CONV) 107 DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (in VAR_DECL) 108 STATEMENT_LIST_TRY_BLOCK (in STATEMENT_LIST) 109 TYPENAME_IS_RESOLVING_P (in TYPE_NAME_TYPE) 110 TARGET_EXPR_DIRECT_INIT_P (in TARGET_EXPR) 111 FNDECL_USED_AUTO (in FUNCTION_DECL) 112 DECLTYPE_FOR_LAMBDA_PROXY (in DECLTYPE_TYPE) 113 REF_PARENTHESIZED_P (in COMPONENT_REF, INDIRECT_REF) 114 AGGR_INIT_ZERO_FIRST (in AGGR_INIT_EXPR) 115 CONSTRUCTOR_MUTABLE_POISON (in CONSTRUCTOR) 116 3: (TREE_REFERENCE_EXPR) (in NON_LVALUE_EXPR) (commented-out). 117 ICS_BAD_FLAG (in _CONV) 118 FN_TRY_BLOCK_P (in TRY_BLOCK) 119 IDENTIFIER_CTOR_OR_DTOR_P (in IDENTIFIER_NODE) 120 BIND_EXPR_BODY_BLOCK (in BIND_EXPR) 121 DECL_NON_TRIVIALLY_INITIALIZED_P (in VAR_DECL) 122 CALL_EXPR_LIST_INIT_P (in CALL_EXPR, AGGR_INIT_EXPR) 123 4: TREE_HAS_CONSTRUCTOR (in INDIRECT_REF, SAVE_EXPR, CONSTRUCTOR, 124 or FIELD_DECL). 125 IDENTIFIER_TYPENAME_P (in IDENTIFIER_NODE) 126 DECL_TINFO_P (in VAR_DECL) 127 FUNCTION_REF_QUALIFIED (in FUNCTION_TYPE, METHOD_TYPE) 128 5: C_IS_RESERVED_WORD (in IDENTIFIER_NODE) 129 DECL_VTABLE_OR_VTT_P (in VAR_DECL) 130 FUNCTION_RVALUE_QUALIFIED (in FUNCTION_TYPE, METHOD_TYPE) 131 6: IDENTIFIER_REPO_CHOSEN (in IDENTIFIER_NODE) 132 DECL_CONSTRUCTION_VTABLE_P (in VAR_DECL) 133 TYPE_MARKED_P (in _TYPE) 134 RANGE_FOR_IVDEP (in RANGE_FOR_STMT) 135 136 Usage of TYPE_LANG_FLAG_?: 137 0: TYPE_DEPENDENT_P 138 1: TYPE_HAS_USER_CONSTRUCTOR. 139 2: TYPE_HAS_LATE_RETURN_TYPE (in FUNCTION_TYPE, METHOD_TYPE) 140 TYPE_PTRMEMFUNC_FLAG (in RECORD_TYPE) 141 3: TYPE_FOR_JAVA. 142 4: TYPE_HAS_NONTRIVIAL_DESTRUCTOR 143 5: CLASS_TYPE_P (in RECORD_TYPE and UNION_TYPE) 144 ENUM_FIXED_UNDERLYING_TYPE_P (in ENUMERAL_TYPE) 145 AUTO_IS_DECLTYPE (in TEMPLATE_TYPE_PARM) 146 REFERENCE_VLA_OK (in REFERENCE_TYPE) 147 6: TYPE_DEPENDENT_P_VALID 148 149 Usage of DECL_LANG_FLAG_?: 150 0: DECL_ERROR_REPORTED (in VAR_DECL). 151 DECL_TEMPLATE_PARM_P (in PARM_DECL, CONST_DECL, TYPE_DECL, or TEMPLATE_DECL) 152 DECL_LOCAL_FUNCTION_P (in FUNCTION_DECL) 153 DECL_MUTABLE_P (in FIELD_DECL) 154 DECL_DEPENDENT_P (in USING_DECL) 155 LABEL_DECL_BREAK (in LABEL_DECL) 156 1: C_TYPEDEF_EXPLICITLY_SIGNED (in TYPE_DECL). 157 DECL_TEMPLATE_INSTANTIATED (in a VAR_DECL or a FUNCTION_DECL) 158 DECL_MEMBER_TEMPLATE_P (in TEMPLATE_DECL) 159 USING_DECL_TYPENAME_P (in USING_DECL) 160 DECL_VLA_CAPTURE_P (in FIELD_DECL) 161 DECL_ARRAY_PARAMETER_P (in PARM_DECL) 162 LABEL_DECL_CONTINUE (in LABEL_DECL) 163 2: DECL_THIS_EXTERN (in VAR_DECL or FUNCTION_DECL). 164 DECL_IMPLICIT_TYPEDEF_P (in a TYPE_DECL) 165 TEMPLATE_DECL_COMPLEX_ALIAS_P (in TEMPLATE_DECL) 166 3: DECL_IN_AGGR_P. 167 4: DECL_C_BIT_FIELD (in a FIELD_DECL) 168 DECL_ANON_UNION_VAR_P (in a VAR_DECL) 169 DECL_SELF_REFERENCE_P (in a TYPE_DECL) 170 DECL_INVALID_OVERRIDER_P (in a FUNCTION_DECL) 171 5: DECL_INTERFACE_KNOWN. 172 6: DECL_THIS_STATIC (in VAR_DECL or FUNCTION_DECL). 173 DECL_FIELD_IS_BASE (in FIELD_DECL) 174 TYPE_DECL_ALIAS_P (in TYPE_DECL) 175 7: DECL_DEAD_FOR_LOCAL (in VAR_DECL). 176 DECL_THUNK_P (in a member FUNCTION_DECL) 177 DECL_NORMAL_CAPTURE_P (in FIELD_DECL) 178 8: DECL_DECLARED_CONSTEXPR_P (in VAR_DECL, FUNCTION_DECL) 179 180 Usage of language-independent fields in a language-dependent manner: 181 182 TYPE_ALIAS_SET 183 This field is used by TYPENAME_TYPEs, TEMPLATE_TYPE_PARMs, and so 184 forth as a substitute for the mark bits provided in `lang_type'. 185 At present, only the six low-order bits are used. 186 187 TYPE_LANG_SLOT_1 188 For an ENUMERAL_TYPE, this is ENUM_TEMPLATE_INFO. 189 For a FUNCTION_TYPE or METHOD_TYPE, this is TYPE_RAISES_EXCEPTIONS 190 191 BINFO_VIRTUALS 192 For a binfo, this is a TREE_LIST. There is an entry for each 193 virtual function declared either in BINFO or its direct and 194 indirect primary bases. 195 196 The BV_DELTA of each node gives the amount by which to adjust the 197 `this' pointer when calling the function. If the method is an 198 overridden version of a base class method, then it is assumed 199 that, prior to adjustment, the this pointer points to an object 200 of the base class. 201 202 The BV_VCALL_INDEX of each node, if non-NULL, gives the vtable 203 index of the vcall offset for this entry. 204 205 The BV_FN is the declaration for the virtual function itself. 206 207 If BV_LOST_PRIMARY is set, it means that this entry is for a lost 208 primary virtual base and can be left null in the vtable. 209 210 BINFO_VTABLE 211 This is an expression with POINTER_TYPE that gives the value 212 to which the vptr should be initialized. Use get_vtbl_decl_for_binfo 213 to extract the VAR_DECL for the complete vtable. 214 215 DECL_VINDEX 216 This field is NULL for a non-virtual function. For a virtual 217 function, it is eventually set to an INTEGER_CST indicating the 218 index in the vtable at which this function can be found. When 219 a virtual function is declared, but before it is known what 220 function is overridden, this field is the error_mark_node. 221 222 Temporarily, it may be set to a TREE_LIST whose TREE_VALUE is 223 the virtual function this one overrides, and whose TREE_CHAIN is 224 the old DECL_VINDEX. */ 225 226/* Language-specific tree checkers. */ 227 228#define VAR_OR_FUNCTION_DECL_CHECK(NODE) \ 229 TREE_CHECK2(NODE,VAR_DECL,FUNCTION_DECL) 230 231#define TYPE_FUNCTION_OR_TEMPLATE_DECL_CHECK(NODE) \ 232 TREE_CHECK3(NODE,TYPE_DECL,TEMPLATE_DECL,FUNCTION_DECL) 233 234#define TYPE_FUNCTION_OR_TEMPLATE_DECL_P(NODE) \ 235 (TREE_CODE (NODE) == TYPE_DECL || TREE_CODE (NODE) == TEMPLATE_DECL \ 236 || TREE_CODE (NODE) == FUNCTION_DECL) 237 238#define VAR_FUNCTION_OR_PARM_DECL_CHECK(NODE) \ 239 TREE_CHECK3(NODE,VAR_DECL,FUNCTION_DECL,PARM_DECL) 240 241#define VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK(NODE) \ 242 TREE_CHECK4(NODE,VAR_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL) 243 244#define VAR_TEMPL_TYPE_FIELD_OR_FUNCTION_DECL_CHECK(NODE) \ 245 TREE_CHECK5(NODE,VAR_DECL,FIELD_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL) 246 247#define BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK(NODE) \ 248 TREE_CHECK(NODE,BOUND_TEMPLATE_TEMPLATE_PARM) 249 250#if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007) 251#define THUNK_FUNCTION_CHECK(NODE) __extension__ \ 252({ __typeof (NODE) const __t = (NODE); \ 253 if (TREE_CODE (__t) != FUNCTION_DECL || !__t->decl_common.lang_specific \ 254 || !__t->decl_common.lang_specific->u.fn.thunk_p) \ 255 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, 0); \ 256 __t; }) 257#else 258#define THUNK_FUNCTION_CHECK(NODE) (NODE) 259#endif 260 261/* Language-dependent contents of an identifier. */ 262 263struct GTY(()) lang_identifier { 264 struct c_common_identifier c_common; 265 cxx_binding *namespace_bindings; 266 cxx_binding *bindings; 267 tree class_template_info; 268 tree label_value; 269}; 270 271/* Return a typed pointer version of T if it designates a 272 C++ front-end identifier. */ 273inline lang_identifier* 274identifier_p (tree t) 275{ 276 if (TREE_CODE (t) == IDENTIFIER_NODE) 277 return (lang_identifier*) t; 278 return NULL; 279} 280 281/* In an IDENTIFIER_NODE, nonzero if this identifier is actually a 282 keyword. C_RID_CODE (node) is then the RID_* value of the keyword, 283 and C_RID_YYCODE is the token number wanted by Yacc. */ 284 285#define C_IS_RESERVED_WORD(ID) TREE_LANG_FLAG_5 (ID) 286 287#define LANG_IDENTIFIER_CAST(NODE) \ 288 ((struct lang_identifier*)IDENTIFIER_NODE_CHECK (NODE)) 289 290struct GTY(()) template_parm_index_s { 291 struct tree_common common; 292 int index; 293 int level; 294 int orig_level; 295 tree decl; 296}; 297typedef struct template_parm_index_s template_parm_index; 298 299struct GTY(()) ptrmem_cst { 300 struct tree_common common; 301 tree member; 302}; 303typedef struct ptrmem_cst * ptrmem_cst_t; 304 305#define IDENTIFIER_GLOBAL_VALUE(NODE) \ 306 namespace_binding ((NODE), global_namespace) 307#define SET_IDENTIFIER_GLOBAL_VALUE(NODE, VAL) \ 308 set_namespace_binding ((NODE), global_namespace, (VAL)) 309#define IDENTIFIER_NAMESPACE_VALUE(NODE) \ 310 namespace_binding ((NODE), current_namespace) 311#define SET_IDENTIFIER_NAMESPACE_VALUE(NODE, VAL) \ 312 set_namespace_binding ((NODE), current_namespace, (VAL)) 313 314#define CLEANUP_P(NODE) TREE_LANG_FLAG_0 (TRY_BLOCK_CHECK (NODE)) 315 316#define BIND_EXPR_TRY_BLOCK(NODE) \ 317 TREE_LANG_FLAG_0 (BIND_EXPR_CHECK (NODE)) 318 319/* Used to mark the block around the member initializers and cleanups. */ 320#define BIND_EXPR_BODY_BLOCK(NODE) \ 321 TREE_LANG_FLAG_3 (BIND_EXPR_CHECK (NODE)) 322#define FUNCTION_NEEDS_BODY_BLOCK(NODE) \ 323 (DECL_CONSTRUCTOR_P (NODE) || DECL_DESTRUCTOR_P (NODE) \ 324 || LAMBDA_FUNCTION_P (NODE)) 325 326#define STATEMENT_LIST_NO_SCOPE(NODE) \ 327 TREE_LANG_FLAG_0 (STATEMENT_LIST_CHECK (NODE)) 328#define STATEMENT_LIST_TRY_BLOCK(NODE) \ 329 TREE_LANG_FLAG_2 (STATEMENT_LIST_CHECK (NODE)) 330 331/* Mark the outer curly brace BLOCK. */ 332#define BLOCK_OUTER_CURLY_BRACE_P(NODE) TREE_LANG_FLAG_0 (BLOCK_CHECK (NODE)) 333 334/* Nonzero if this statement should be considered a full-expression, 335 i.e., if temporaries created during this statement should have 336 their destructors run at the end of this statement. */ 337#define STMT_IS_FULL_EXPR_P(NODE) TREE_LANG_FLAG_1 ((NODE)) 338 339/* Marks the result of a statement expression. */ 340#define EXPR_STMT_STMT_EXPR_RESULT(NODE) \ 341 TREE_LANG_FLAG_0 (EXPR_STMT_CHECK (NODE)) 342 343/* Nonzero if this statement-expression does not have an associated scope. */ 344#define STMT_EXPR_NO_SCOPE(NODE) \ 345 TREE_LANG_FLAG_0 (STMT_EXPR_CHECK (NODE)) 346 347/* Returns nonzero iff TYPE1 and TYPE2 are the same type, in the usual 348 sense of `same'. */ 349#define same_type_p(TYPE1, TYPE2) \ 350 comptypes ((TYPE1), (TYPE2), COMPARE_STRICT) 351 352/* Returns nonzero iff NODE is a declaration for the global function 353 `main'. */ 354#define DECL_MAIN_P(NODE) \ 355 (DECL_EXTERN_C_FUNCTION_P (NODE) \ 356 && DECL_NAME (NODE) != NULL_TREE \ 357 && MAIN_NAME_P (DECL_NAME (NODE)) \ 358 && flag_hosted) 359 360/* The overloaded FUNCTION_DECL. */ 361#define OVL_FUNCTION(NODE) \ 362 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->function) 363#define OVL_CHAIN(NODE) TREE_CHAIN (NODE) 364/* Polymorphic access to FUNCTION and CHAIN. */ 365#define OVL_CURRENT(NODE) \ 366 ((TREE_CODE (NODE) == OVERLOAD) ? OVL_FUNCTION (NODE) : (NODE)) 367#define OVL_NEXT(NODE) \ 368 ((TREE_CODE (NODE) == OVERLOAD) ? TREE_CHAIN (NODE) : NULL_TREE) 369/* If set, this was imported in a using declaration. 370 This is not to confuse with being used somewhere, which 371 is not important for this node. */ 372#define OVL_USED(NODE) TREE_USED (OVERLOAD_CHECK (NODE)) 373/* If set, this OVERLOAD was created for argument-dependent lookup 374 and can be freed afterward. */ 375#define OVL_ARG_DEPENDENT(NODE) TREE_LANG_FLAG_0 (OVERLOAD_CHECK (NODE)) 376 377struct GTY(()) tree_overload { 378 struct tree_common common; 379 tree function; 380}; 381 382struct GTY(()) tree_template_decl { 383 struct tree_decl_common common; 384 tree arguments; 385 tree result; 386}; 387 388/* Returns true iff NODE is a BASELINK. */ 389#define BASELINK_P(NODE) \ 390 (TREE_CODE (NODE) == BASELINK) 391/* The BINFO indicating the base in which lookup found the 392 BASELINK_FUNCTIONS. */ 393#define BASELINK_BINFO(NODE) \ 394 (((struct tree_baselink*) BASELINK_CHECK (NODE))->binfo) 395/* The functions referred to by the BASELINK; either a FUNCTION_DECL, 396 a TEMPLATE_DECL, an OVERLOAD, or a TEMPLATE_ID_EXPR. */ 397#define BASELINK_FUNCTIONS(NODE) \ 398 (((struct tree_baselink*) BASELINK_CHECK (NODE))->functions) 399/* The BINFO in which the search for the functions indicated by this baselink 400 began. This base is used to determine the accessibility of functions 401 selected by overload resolution. */ 402#define BASELINK_ACCESS_BINFO(NODE) \ 403 (((struct tree_baselink*) BASELINK_CHECK (NODE))->access_binfo) 404/* For a type-conversion operator, the BASELINK_OPTYPE indicates the type 405 to which the conversion should occur. This value is important if 406 the BASELINK_FUNCTIONS include a template conversion operator -- 407 the BASELINK_OPTYPE can be used to determine what type the user 408 requested. */ 409#define BASELINK_OPTYPE(NODE) \ 410 (TREE_CHAIN (BASELINK_CHECK (NODE))) 411/* Nonzero if this baselink was from a qualified lookup. */ 412#define BASELINK_QUALIFIED_P(NODE) \ 413 TREE_LANG_FLAG_0 (BASELINK_CHECK (NODE)) 414 415struct GTY(()) tree_baselink { 416 struct tree_common common; 417 tree binfo; 418 tree functions; 419 tree access_binfo; 420}; 421 422/* The different kinds of ids that we encounter. */ 423 424typedef enum cp_id_kind 425{ 426 /* Not an id at all. */ 427 CP_ID_KIND_NONE, 428 /* An unqualified-id that is not a template-id. */ 429 CP_ID_KIND_UNQUALIFIED, 430 /* An unqualified-id that is a dependent name. */ 431 CP_ID_KIND_UNQUALIFIED_DEPENDENT, 432 /* An unqualified template-id. */ 433 CP_ID_KIND_TEMPLATE_ID, 434 /* A qualified-id. */ 435 CP_ID_KIND_QUALIFIED 436} cp_id_kind; 437 438 439/* The various kinds of C++0x warnings we encounter. */ 440 441typedef enum cpp0x_warn_str 442{ 443 /* extended initializer lists */ 444 CPP0X_INITIALIZER_LISTS, 445 /* explicit conversion operators */ 446 CPP0X_EXPLICIT_CONVERSION, 447 /* variadic templates */ 448 CPP0X_VARIADIC_TEMPLATES, 449 /* lambda expressions */ 450 CPP0X_LAMBDA_EXPR, 451 /* C++0x auto */ 452 CPP0X_AUTO, 453 /* scoped enums */ 454 CPP0X_SCOPED_ENUMS, 455 /* defaulted and deleted functions */ 456 CPP0X_DEFAULTED_DELETED, 457 /* inline namespaces */ 458 CPP0X_INLINE_NAMESPACES, 459 /* override controls, override/final */ 460 CPP0X_OVERRIDE_CONTROLS, 461 /* non-static data member initializers */ 462 CPP0X_NSDMI, 463 /* user defined literals */ 464 CPP0X_USER_DEFINED_LITERALS, 465 /* delegating constructors */ 466 CPP0X_DELEGATING_CTORS, 467 /* inheriting constructors */ 468 CPP0X_INHERITING_CTORS, 469 /* C++11 attributes */ 470 CPP0X_ATTRIBUTES, 471 /* ref-qualified member functions */ 472 CPP0X_REF_QUALIFIER 473} cpp0x_warn_str; 474 475/* The various kinds of operation used by composite_pointer_type. */ 476 477typedef enum composite_pointer_operation 478{ 479 /* comparison */ 480 CPO_COMPARISON, 481 /* conversion */ 482 CPO_CONVERSION, 483 /* conditional expression */ 484 CPO_CONDITIONAL_EXPR 485} composite_pointer_operation; 486 487/* Possible cases of expression list used by build_x_compound_expr_from_list. */ 488typedef enum expr_list_kind { 489 ELK_INIT, /* initializer */ 490 ELK_MEM_INIT, /* member initializer */ 491 ELK_FUNC_CAST /* functional cast */ 492} expr_list_kind; 493 494/* Possible cases of implicit bad rhs conversions. */ 495typedef enum impl_conv_rhs { 496 ICR_DEFAULT_ARGUMENT, /* default argument */ 497 ICR_CONVERTING, /* converting */ 498 ICR_INIT, /* initialization */ 499 ICR_ARGPASS, /* argument passing */ 500 ICR_RETURN, /* return */ 501 ICR_ASSIGN /* assignment */ 502} impl_conv_rhs; 503 504/* Possible cases of implicit or explicit bad conversions to void. */ 505typedef enum impl_conv_void { 506 ICV_CAST, /* (explicit) conversion to void */ 507 ICV_SECOND_OF_COND, /* second operand of conditional expression */ 508 ICV_THIRD_OF_COND, /* third operand of conditional expression */ 509 ICV_RIGHT_OF_COMMA, /* right operand of comma operator */ 510 ICV_LEFT_OF_COMMA, /* left operand of comma operator */ 511 ICV_STATEMENT, /* statement */ 512 ICV_THIRD_IN_FOR /* for increment expression */ 513} impl_conv_void; 514 515/* Possible invalid uses of an abstract class that might not have a 516 specific associated declaration. */ 517typedef enum abstract_class_use { 518 ACU_UNKNOWN, /* unknown or decl provided */ 519 ACU_CAST, /* cast to abstract class */ 520 ACU_NEW, /* new-expression of abstract class */ 521 ACU_THROW, /* throw-expression of abstract class */ 522 ACU_CATCH, /* catch-parameter of abstract class */ 523 ACU_ARRAY, /* array of abstract class */ 524 ACU_RETURN, /* return type of abstract class */ 525 ACU_PARM /* parameter type of abstract class */ 526} abstract_class_use; 527 528/* Macros for access to language-specific slots in an identifier. */ 529 530#define IDENTIFIER_NAMESPACE_BINDINGS(NODE) \ 531 (LANG_IDENTIFIER_CAST (NODE)->namespace_bindings) 532#define IDENTIFIER_TEMPLATE(NODE) \ 533 (LANG_IDENTIFIER_CAST (NODE)->class_template_info) 534 535/* The IDENTIFIER_BINDING is the innermost cxx_binding for the 536 identifier. It's PREVIOUS is the next outermost binding. Each 537 VALUE field is a DECL for the associated declaration. Thus, 538 name lookup consists simply of pulling off the node at the front 539 of the list (modulo oddities for looking up the names of types, 540 and such.) You can use SCOPE field to determine the scope 541 that bound the name. */ 542#define IDENTIFIER_BINDING(NODE) \ 543 (LANG_IDENTIFIER_CAST (NODE)->bindings) 544 545/* TREE_TYPE only indicates on local and class scope the current 546 type. For namespace scope, the presence of a type in any namespace 547 is indicated with global_type_node, and the real type behind must 548 be found through lookup. */ 549#define IDENTIFIER_TYPE_VALUE(NODE) identifier_type_value (NODE) 550#define REAL_IDENTIFIER_TYPE_VALUE(NODE) TREE_TYPE (NODE) 551#define SET_IDENTIFIER_TYPE_VALUE(NODE,TYPE) (TREE_TYPE (NODE) = (TYPE)) 552#define IDENTIFIER_HAS_TYPE_VALUE(NODE) (IDENTIFIER_TYPE_VALUE (NODE) ? 1 : 0) 553 554#define IDENTIFIER_LABEL_VALUE(NODE) \ 555 (LANG_IDENTIFIER_CAST (NODE)->label_value) 556#define SET_IDENTIFIER_LABEL_VALUE(NODE, VALUE) \ 557 IDENTIFIER_LABEL_VALUE (NODE) = (VALUE) 558 559/* Nonzero if this identifier is used as a virtual function name somewhere 560 (optimizes searches). */ 561#define IDENTIFIER_VIRTUAL_P(NODE) TREE_LANG_FLAG_1 (NODE) 562 563/* Nonzero if this identifier is the prefix for a mangled C++ operator 564 name. */ 565#define IDENTIFIER_OPNAME_P(NODE) TREE_LANG_FLAG_2 (NODE) 566 567/* Nonzero if this identifier is the name of a type-conversion 568 operator. */ 569#define IDENTIFIER_TYPENAME_P(NODE) \ 570 TREE_LANG_FLAG_4 (NODE) 571 572/* Nonzero if this identifier is the name of a constructor or 573 destructor. */ 574#define IDENTIFIER_CTOR_OR_DTOR_P(NODE) \ 575 TREE_LANG_FLAG_3 (NODE) 576 577/* True iff NAME is the DECL_ASSEMBLER_NAME for an entity with vague 578 linkage which the prelinker has assigned to this translation 579 unit. */ 580#define IDENTIFIER_REPO_CHOSEN(NAME) \ 581 (TREE_LANG_FLAG_6 (NAME)) 582 583/* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */ 584#define C_TYPE_FIELDS_READONLY(TYPE) \ 585 (LANG_TYPE_CLASS_CHECK (TYPE)->fields_readonly) 586 587/* The tokens stored in the default argument. */ 588 589#define DEFARG_TOKENS(NODE) \ 590 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->tokens) 591#define DEFARG_INSTANTIATIONS(NODE) \ 592 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->instantiations) 593 594struct GTY (()) tree_default_arg { 595 struct tree_common common; 596 struct cp_token_cache *tokens; 597 vec<tree, va_gc> *instantiations; 598}; 599 600 601#define DEFERRED_NOEXCEPT_PATTERN(NODE) \ 602 (((struct tree_deferred_noexcept *)DEFERRED_NOEXCEPT_CHECK (NODE))->pattern) 603#define DEFERRED_NOEXCEPT_ARGS(NODE) \ 604 (((struct tree_deferred_noexcept *)DEFERRED_NOEXCEPT_CHECK (NODE))->args) 605#define DEFERRED_NOEXCEPT_SPEC_P(NODE) \ 606 ((NODE) && (TREE_PURPOSE (NODE)) \ 607 && (TREE_CODE (TREE_PURPOSE (NODE)) == DEFERRED_NOEXCEPT)) 608#define UNEVALUATED_NOEXCEPT_SPEC_P(NODE) \ 609 (DEFERRED_NOEXCEPT_SPEC_P (NODE) \ 610 && DEFERRED_NOEXCEPT_PATTERN (TREE_PURPOSE (NODE)) == NULL_TREE) 611 612struct GTY (()) tree_deferred_noexcept { 613 struct tree_base base; 614 tree pattern; 615 tree args; 616}; 617 618 619/* The condition associated with the static assertion. This must be 620 an integral constant expression. */ 621#define STATIC_ASSERT_CONDITION(NODE) \ 622 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->condition) 623 624/* The message associated with the static assertion. This must be a 625 string constant, which will be emitted as an error message when the 626 static assert condition is false. */ 627#define STATIC_ASSERT_MESSAGE(NODE) \ 628 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->message) 629 630/* Source location information for a static assertion. */ 631#define STATIC_ASSERT_SOURCE_LOCATION(NODE) \ 632 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->location) 633 634struct GTY (()) tree_static_assert { 635 struct tree_common common; 636 tree condition; 637 tree message; 638 location_t location; 639}; 640 641struct GTY (()) tree_argument_pack_select { 642 struct tree_common common; 643 tree argument_pack; 644 int index; 645}; 646 647/* The different kinds of traits that we encounter. */ 648 649typedef enum cp_trait_kind 650{ 651 CPTK_BASES, 652 CPTK_DIRECT_BASES, 653 CPTK_HAS_NOTHROW_ASSIGN, 654 CPTK_HAS_NOTHROW_CONSTRUCTOR, 655 CPTK_HAS_NOTHROW_COPY, 656 CPTK_HAS_TRIVIAL_ASSIGN, 657 CPTK_HAS_TRIVIAL_CONSTRUCTOR, 658 CPTK_HAS_TRIVIAL_COPY, 659 CPTK_HAS_TRIVIAL_DESTRUCTOR, 660 CPTK_HAS_VIRTUAL_DESTRUCTOR, 661 CPTK_IS_ABSTRACT, 662 CPTK_IS_BASE_OF, 663 CPTK_IS_CLASS, 664 CPTK_IS_EMPTY, 665 CPTK_IS_ENUM, 666 CPTK_IS_FINAL, 667 CPTK_IS_LITERAL_TYPE, 668 CPTK_IS_POD, 669 CPTK_IS_POLYMORPHIC, 670 CPTK_IS_STD_LAYOUT, 671 CPTK_IS_TRIVIAL, 672 CPTK_IS_TRIVIALLY_ASSIGNABLE, 673 CPTK_IS_TRIVIALLY_CONSTRUCTIBLE, 674 CPTK_IS_TRIVIALLY_COPYABLE, 675 CPTK_IS_UNION, 676 CPTK_UNDERLYING_TYPE 677} cp_trait_kind; 678 679/* The types that we are processing. */ 680#define TRAIT_EXPR_TYPE1(NODE) \ 681 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type1) 682 683#define TRAIT_EXPR_TYPE2(NODE) \ 684 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type2) 685 686/* The specific trait that we are processing. */ 687#define TRAIT_EXPR_KIND(NODE) \ 688 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->kind) 689 690struct GTY (()) tree_trait_expr { 691 struct tree_common common; 692 tree type1; 693 tree type2; 694 enum cp_trait_kind kind; 695}; 696 697/* Based off of TYPE_ANONYMOUS_P. */ 698#define LAMBDA_TYPE_P(NODE) \ 699 (CLASS_TYPE_P (NODE) && CLASSTYPE_LAMBDA_EXPR (NODE)) 700 701/* Test if FUNCTION_DECL is a lambda function. */ 702#define LAMBDA_FUNCTION_P(FNDECL) \ 703 (DECL_OVERLOADED_OPERATOR_P (FNDECL) == CALL_EXPR \ 704 && LAMBDA_TYPE_P (CP_DECL_CONTEXT (FNDECL))) 705 706enum cp_lambda_default_capture_mode_type { 707 CPLD_NONE, 708 CPLD_COPY, 709 CPLD_REFERENCE 710}; 711 712/* The method of default capture, if any. */ 713#define LAMBDA_EXPR_DEFAULT_CAPTURE_MODE(NODE) \ 714 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->default_capture_mode) 715 716/* The capture-list, including `this'. Each capture is stored as a FIELD_DECL 717 * so that the name, type, and field are all together, whether or not it has 718 * been added to the lambda's class type. 719 TREE_LIST: 720 TREE_PURPOSE: The FIELD_DECL for this capture. 721 TREE_VALUE: The initializer. This is part of a GNU extension. */ 722#define LAMBDA_EXPR_CAPTURE_LIST(NODE) \ 723 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->capture_list) 724 725/* During parsing of the lambda-introducer, the node in the capture-list 726 that holds the 'this' capture. During parsing of the body, the 727 capture proxy for that node. */ 728#define LAMBDA_EXPR_THIS_CAPTURE(NODE) \ 729 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->this_capture) 730 731/* Predicate tracking whether `this' is in the effective capture set. */ 732#define LAMBDA_EXPR_CAPTURES_THIS_P(NODE) \ 733 LAMBDA_EXPR_THIS_CAPTURE(NODE) 734 735/* Predicate tracking whether the lambda was declared 'mutable'. */ 736#define LAMBDA_EXPR_MUTABLE_P(NODE) \ 737 TREE_LANG_FLAG_1 (LAMBDA_EXPR_CHECK (NODE)) 738 739/* The return type in the expression. 740 * NULL_TREE indicates that none was specified. */ 741#define LAMBDA_EXPR_RETURN_TYPE(NODE) \ 742 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->return_type) 743 744/* The source location of the lambda. */ 745#define LAMBDA_EXPR_LOCATION(NODE) \ 746 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->locus) 747 748/* The mangling scope for the lambda: FUNCTION_DECL, PARM_DECL, VAR_DECL, 749 FIELD_DECL or NULL_TREE. If this is NULL_TREE, we have no linkage. */ 750#define LAMBDA_EXPR_EXTRA_SCOPE(NODE) \ 751 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->extra_scope) 752 753/* If EXTRA_SCOPE, this is the number of the lambda within that scope. */ 754#define LAMBDA_EXPR_DISCRIMINATOR(NODE) \ 755 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->discriminator) 756 757/* During parsing of the lambda, a vector of capture proxies which need 758 to be pushed once we're done processing a nested lambda. */ 759#define LAMBDA_EXPR_PENDING_PROXIES(NODE) \ 760 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->pending_proxies) 761 762/* The closure type of the lambda. Note that the TREE_TYPE of a 763 LAMBDA_EXPR is always NULL_TREE, because we need to instantiate the 764 LAMBDA_EXPR in order to instantiate the type. */ 765#define LAMBDA_EXPR_CLOSURE(NODE) \ 766 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->closure) 767 768struct GTY (()) tree_lambda_expr 769{ 770 struct tree_typed typed; 771 tree capture_list; 772 tree this_capture; 773 tree return_type; 774 tree extra_scope; 775 tree closure; 776 vec<tree, va_gc> *pending_proxies; 777 location_t locus; 778 enum cp_lambda_default_capture_mode_type default_capture_mode; 779 int discriminator; 780}; 781 782/* A (typedef,context,usage location) triplet. 783 It represents a typedef used through a 784 context at a given source location. 785 e.g. 786 struct foo { 787 typedef int myint; 788 }; 789 790 struct bar { 791 foo::myint v; // #1<-- this location. 792 }; 793 794 In bar, the triplet will be (myint, foo, #1). 795 */ 796struct GTY(()) qualified_typedef_usage_s { 797 tree typedef_decl; 798 tree context; 799 location_t locus; 800}; 801typedef struct qualified_typedef_usage_s qualified_typedef_usage_t; 802 803/* Non-zero if this template specialization has access violations that 804 should be rechecked when the function is instantiated outside argument 805 deduction. */ 806#define TINFO_HAS_ACCESS_ERRORS(NODE) \ 807 (TREE_LANG_FLAG_0 (TEMPLATE_INFO_CHECK (NODE))) 808#define FNDECL_HAS_ACCESS_ERRORS(NODE) \ 809 (TINFO_HAS_ACCESS_ERRORS (DECL_TEMPLATE_INFO (NODE))) 810 811/* Non-zero if this variable template specialization was specified using a 812 template-id, so it's a partial or full specialization and not a definition 813 of the member template of a particular class specialization. */ 814#define TINFO_USED_TEMPLATE_ID(NODE) \ 815 (TREE_LANG_FLAG_1 (TEMPLATE_INFO_CHECK (NODE))) 816 817struct GTY(()) tree_template_info { 818 struct tree_common common; 819 vec<qualified_typedef_usage_t, va_gc> *typedefs_needing_access_checking; 820}; 821 822enum cp_tree_node_structure_enum { 823 TS_CP_GENERIC, 824 TS_CP_IDENTIFIER, 825 TS_CP_TPI, 826 TS_CP_PTRMEM, 827 TS_CP_BINDING, 828 TS_CP_OVERLOAD, 829 TS_CP_BASELINK, 830 TS_CP_TEMPLATE_DECL, 831 TS_CP_WRAPPER, 832 TS_CP_DEFAULT_ARG, 833 TS_CP_DEFERRED_NOEXCEPT, 834 TS_CP_STATIC_ASSERT, 835 TS_CP_ARGUMENT_PACK_SELECT, 836 TS_CP_TRAIT_EXPR, 837 TS_CP_LAMBDA_EXPR, 838 TS_CP_TEMPLATE_INFO, 839 TS_CP_USERDEF_LITERAL, 840 LAST_TS_CP_ENUM 841}; 842 843/* The resulting tree type. */ 844union GTY((desc ("cp_tree_node_structure (&%h)"), 845 chain_next ("(union lang_tree_node *) c_tree_chain_next (&%h.generic)"))) lang_tree_node { 846 union tree_node GTY ((tag ("TS_CP_GENERIC"), 847 desc ("tree_node_structure (&%h)"))) generic; 848 struct template_parm_index_s GTY ((tag ("TS_CP_TPI"))) tpi; 849 struct ptrmem_cst GTY ((tag ("TS_CP_PTRMEM"))) ptrmem; 850 struct tree_overload GTY ((tag ("TS_CP_OVERLOAD"))) overload; 851 struct tree_baselink GTY ((tag ("TS_CP_BASELINK"))) baselink; 852 struct tree_template_decl GTY ((tag ("TS_CP_TEMPLATE_DECL"))) template_decl; 853 struct tree_default_arg GTY ((tag ("TS_CP_DEFAULT_ARG"))) default_arg; 854 struct tree_deferred_noexcept GTY ((tag ("TS_CP_DEFERRED_NOEXCEPT"))) deferred_noexcept; 855 struct lang_identifier GTY ((tag ("TS_CP_IDENTIFIER"))) identifier; 856 struct tree_static_assert GTY ((tag ("TS_CP_STATIC_ASSERT"))) 857 static_assertion; 858 struct tree_argument_pack_select GTY ((tag ("TS_CP_ARGUMENT_PACK_SELECT"))) 859 argument_pack_select; 860 struct tree_trait_expr GTY ((tag ("TS_CP_TRAIT_EXPR"))) 861 trait_expression; 862 struct tree_lambda_expr GTY ((tag ("TS_CP_LAMBDA_EXPR"))) 863 lambda_expression; 864 struct tree_template_info GTY ((tag ("TS_CP_TEMPLATE_INFO"))) 865 template_info; 866 struct tree_userdef_literal GTY ((tag ("TS_CP_USERDEF_LITERAL"))) 867 userdef_literal; 868}; 869 870 871enum cp_tree_index 872{ 873 CPTI_JAVA_BYTE_TYPE, 874 CPTI_JAVA_SHORT_TYPE, 875 CPTI_JAVA_INT_TYPE, 876 CPTI_JAVA_LONG_TYPE, 877 CPTI_JAVA_FLOAT_TYPE, 878 CPTI_JAVA_DOUBLE_TYPE, 879 CPTI_JAVA_CHAR_TYPE, 880 CPTI_JAVA_BOOLEAN_TYPE, 881 882 CPTI_WCHAR_DECL, 883 CPTI_VTABLE_ENTRY_TYPE, 884 CPTI_DELTA_TYPE, 885 CPTI_VTABLE_INDEX_TYPE, 886 CPTI_CLEANUP_TYPE, 887 CPTI_VTT_PARM_TYPE, 888 889 CPTI_CLASS_TYPE, 890 CPTI_UNKNOWN_TYPE, 891 CPTI_INIT_LIST_TYPE, 892 CPTI_VTBL_TYPE, 893 CPTI_VTBL_PTR_TYPE, 894 CPTI_STD, 895 CPTI_ABI, 896 CPTI_CONST_TYPE_INFO_TYPE, 897 CPTI_TYPE_INFO_PTR_TYPE, 898 CPTI_ABORT_FNDECL, 899 CPTI_AGGR_TAG, 900 901 CPTI_CTOR_IDENTIFIER, 902 CPTI_COMPLETE_CTOR_IDENTIFIER, 903 CPTI_BASE_CTOR_IDENTIFIER, 904 CPTI_DTOR_IDENTIFIER, 905 CPTI_COMPLETE_DTOR_IDENTIFIER, 906 CPTI_BASE_DTOR_IDENTIFIER, 907 CPTI_DELETING_DTOR_IDENTIFIER, 908 CPTI_DELTA_IDENTIFIER, 909 CPTI_IN_CHARGE_IDENTIFIER, 910 CPTI_VTT_PARM_IDENTIFIER, 911 CPTI_NELTS_IDENTIFIER, 912 CPTI_THIS_IDENTIFIER, 913 CPTI_PFN_IDENTIFIER, 914 CPTI_VPTR_IDENTIFIER, 915 CPTI_STD_IDENTIFIER, 916 917 CPTI_LANG_NAME_C, 918 CPTI_LANG_NAME_CPLUSPLUS, 919 CPTI_LANG_NAME_JAVA, 920 921 CPTI_EMPTY_EXCEPT_SPEC, 922 CPTI_NOEXCEPT_TRUE_SPEC, 923 CPTI_NOEXCEPT_FALSE_SPEC, 924 CPTI_JCLASS, 925 CPTI_TERMINATE, 926 CPTI_CALL_UNEXPECTED, 927 CPTI_ATEXIT_FN_PTR_TYPE, 928 CPTI_ATEXIT, 929 CPTI_DSO_HANDLE, 930 CPTI_DCAST, 931 932 CPTI_KEYED_CLASSES, 933 934 CPTI_NULLPTR, 935 CPTI_NULLPTR_TYPE, 936 937 CPTI_MAX 938}; 939 940extern GTY(()) tree cp_global_trees[CPTI_MAX]; 941 942#define java_byte_type_node cp_global_trees[CPTI_JAVA_BYTE_TYPE] 943#define java_short_type_node cp_global_trees[CPTI_JAVA_SHORT_TYPE] 944#define java_int_type_node cp_global_trees[CPTI_JAVA_INT_TYPE] 945#define java_long_type_node cp_global_trees[CPTI_JAVA_LONG_TYPE] 946#define java_float_type_node cp_global_trees[CPTI_JAVA_FLOAT_TYPE] 947#define java_double_type_node cp_global_trees[CPTI_JAVA_DOUBLE_TYPE] 948#define java_char_type_node cp_global_trees[CPTI_JAVA_CHAR_TYPE] 949#define java_boolean_type_node cp_global_trees[CPTI_JAVA_BOOLEAN_TYPE] 950 951#define wchar_decl_node cp_global_trees[CPTI_WCHAR_DECL] 952#define vtable_entry_type cp_global_trees[CPTI_VTABLE_ENTRY_TYPE] 953/* The type used to represent an offset by which to adjust the `this' 954 pointer in pointer-to-member types. */ 955#define delta_type_node cp_global_trees[CPTI_DELTA_TYPE] 956/* The type used to represent an index into the vtable. */ 957#define vtable_index_type cp_global_trees[CPTI_VTABLE_INDEX_TYPE] 958 959#define class_type_node cp_global_trees[CPTI_CLASS_TYPE] 960#define unknown_type_node cp_global_trees[CPTI_UNKNOWN_TYPE] 961#define init_list_type_node cp_global_trees[CPTI_INIT_LIST_TYPE] 962#define vtbl_type_node cp_global_trees[CPTI_VTBL_TYPE] 963#define vtbl_ptr_type_node cp_global_trees[CPTI_VTBL_PTR_TYPE] 964#define std_node cp_global_trees[CPTI_STD] 965#define abi_node cp_global_trees[CPTI_ABI] 966#define const_type_info_type_node cp_global_trees[CPTI_CONST_TYPE_INFO_TYPE] 967#define type_info_ptr_type cp_global_trees[CPTI_TYPE_INFO_PTR_TYPE] 968#define abort_fndecl cp_global_trees[CPTI_ABORT_FNDECL] 969#define current_aggr cp_global_trees[CPTI_AGGR_TAG] 970#define nullptr_node cp_global_trees[CPTI_NULLPTR] 971#define nullptr_type_node cp_global_trees[CPTI_NULLPTR_TYPE] 972 973/* We cache these tree nodes so as to call get_identifier less 974 frequently. */ 975 976/* The name of a constructor that takes an in-charge parameter to 977 decide whether or not to construct virtual base classes. */ 978#define ctor_identifier cp_global_trees[CPTI_CTOR_IDENTIFIER] 979/* The name of a constructor that constructs virtual base classes. */ 980#define complete_ctor_identifier cp_global_trees[CPTI_COMPLETE_CTOR_IDENTIFIER] 981/* The name of a constructor that does not construct virtual base classes. */ 982#define base_ctor_identifier cp_global_trees[CPTI_BASE_CTOR_IDENTIFIER] 983/* The name of a destructor that takes an in-charge parameter to 984 decide whether or not to destroy virtual base classes and whether 985 or not to delete the object. */ 986#define dtor_identifier cp_global_trees[CPTI_DTOR_IDENTIFIER] 987/* The name of a destructor that destroys virtual base classes. */ 988#define complete_dtor_identifier cp_global_trees[CPTI_COMPLETE_DTOR_IDENTIFIER] 989/* The name of a destructor that does not destroy virtual base 990 classes. */ 991#define base_dtor_identifier cp_global_trees[CPTI_BASE_DTOR_IDENTIFIER] 992/* The name of a destructor that destroys virtual base classes, and 993 then deletes the entire object. */ 994#define deleting_dtor_identifier cp_global_trees[CPTI_DELETING_DTOR_IDENTIFIER] 995#define delta_identifier cp_global_trees[CPTI_DELTA_IDENTIFIER] 996#define in_charge_identifier cp_global_trees[CPTI_IN_CHARGE_IDENTIFIER] 997/* The name of the parameter that contains a pointer to the VTT to use 998 for this subobject constructor or destructor. */ 999#define vtt_parm_identifier cp_global_trees[CPTI_VTT_PARM_IDENTIFIER] 1000#define nelts_identifier cp_global_trees[CPTI_NELTS_IDENTIFIER] 1001#define this_identifier cp_global_trees[CPTI_THIS_IDENTIFIER] 1002#define pfn_identifier cp_global_trees[CPTI_PFN_IDENTIFIER] 1003#define vptr_identifier cp_global_trees[CPTI_VPTR_IDENTIFIER] 1004/* The name of the std namespace. */ 1005#define std_identifier cp_global_trees[CPTI_STD_IDENTIFIER] 1006#define lang_name_c cp_global_trees[CPTI_LANG_NAME_C] 1007#define lang_name_cplusplus cp_global_trees[CPTI_LANG_NAME_CPLUSPLUS] 1008#define lang_name_java cp_global_trees[CPTI_LANG_NAME_JAVA] 1009 1010/* Exception specifier used for throw(). */ 1011#define empty_except_spec cp_global_trees[CPTI_EMPTY_EXCEPT_SPEC] 1012#define noexcept_true_spec cp_global_trees[CPTI_NOEXCEPT_TRUE_SPEC] 1013#define noexcept_false_spec cp_global_trees[CPTI_NOEXCEPT_FALSE_SPEC] 1014 1015/* If non-NULL, a POINTER_TYPE equivalent to (java::lang::Class*). */ 1016#define jclass_node cp_global_trees[CPTI_JCLASS] 1017 1018/* The declaration for `std::terminate'. */ 1019#define terminate_node cp_global_trees[CPTI_TERMINATE] 1020 1021/* The declaration for "__cxa_call_unexpected". */ 1022#define call_unexpected_node cp_global_trees[CPTI_CALL_UNEXPECTED] 1023 1024/* The type of the function-pointer argument to "__cxa_atexit" (or 1025 "std::atexit", if "__cxa_atexit" is not being used). */ 1026#define atexit_fn_ptr_type_node cp_global_trees[CPTI_ATEXIT_FN_PTR_TYPE] 1027 1028/* A pointer to `std::atexit'. */ 1029#define atexit_node cp_global_trees[CPTI_ATEXIT] 1030 1031/* A pointer to `__dso_handle'. */ 1032#define dso_handle_node cp_global_trees[CPTI_DSO_HANDLE] 1033 1034/* The declaration of the dynamic_cast runtime. */ 1035#define dynamic_cast_node cp_global_trees[CPTI_DCAST] 1036 1037/* The type of a destructor. */ 1038#define cleanup_type cp_global_trees[CPTI_CLEANUP_TYPE] 1039 1040/* The type of the vtt parameter passed to subobject constructors and 1041 destructors. */ 1042#define vtt_parm_type cp_global_trees[CPTI_VTT_PARM_TYPE] 1043 1044/* A TREE_LIST of the dynamic classes whose vtables may have to be 1045 emitted in this translation unit. */ 1046 1047#define keyed_classes cp_global_trees[CPTI_KEYED_CLASSES] 1048 1049/* Node to indicate default access. This must be distinct from the 1050 access nodes in tree.h. */ 1051 1052#define access_default_node null_node 1053 1054/* Global state. */ 1055 1056struct GTY(()) saved_scope { 1057 vec<cxx_saved_binding, va_gc> *old_bindings; 1058 tree old_namespace; 1059 vec<tree, va_gc> *decl_ns_list; 1060 tree class_name; 1061 tree class_type; 1062 tree access_specifier; 1063 tree function_decl; 1064 vec<tree, va_gc> *lang_base; 1065 tree lang_name; 1066 tree template_parms; 1067 cp_binding_level *x_previous_class_level; 1068 tree x_saved_tree; 1069 1070 /* Only used for uses of this in trailing return type. */ 1071 tree x_current_class_ptr; 1072 tree x_current_class_ref; 1073 1074 int x_processing_template_decl; 1075 int x_processing_specialization; 1076 BOOL_BITFIELD x_processing_explicit_instantiation : 1; 1077 BOOL_BITFIELD need_pop_function_context : 1; 1078 1079 int unevaluated_operand; 1080 int inhibit_evaluation_warnings; 1081 int noexcept_operand; 1082 /* If non-zero, implicit "omp declare target" attribute is added into the 1083 attribute lists. */ 1084 int omp_declare_target_attribute; 1085 1086 struct stmt_tree_s x_stmt_tree; 1087 1088 cp_binding_level *class_bindings; 1089 cp_binding_level *bindings; 1090 1091 hash_map<tree, tree> *GTY((skip)) x_local_specializations; 1092 1093 struct saved_scope *prev; 1094}; 1095 1096extern GTY(()) struct saved_scope *scope_chain; 1097 1098/* The current open namespace. */ 1099 1100#define current_namespace scope_chain->old_namespace 1101 1102/* The stack for namespaces of current declarations. */ 1103 1104#define decl_namespace_list scope_chain->decl_ns_list 1105 1106/* IDENTIFIER_NODE: name of current class */ 1107 1108#define current_class_name scope_chain->class_name 1109 1110/* _TYPE: the type of the current class */ 1111 1112#define current_class_type scope_chain->class_type 1113 1114/* When parsing a class definition, the access specifier most recently 1115 given by the user, or, if no access specifier was given, the 1116 default value appropriate for the kind of class (i.e., struct, 1117 class, or union). */ 1118 1119#define current_access_specifier scope_chain->access_specifier 1120 1121/* Pointer to the top of the language name stack. */ 1122 1123#define current_lang_base scope_chain->lang_base 1124#define current_lang_name scope_chain->lang_name 1125 1126/* When parsing a template declaration, a TREE_LIST represents the 1127 active template parameters. Each node in the list represents one 1128 level of template parameters. The innermost level is first in the 1129 list. The depth of each level is stored as an INTEGER_CST in the 1130 TREE_PURPOSE of each node. The parameters for that level are 1131 stored in the TREE_VALUE. */ 1132 1133#define current_template_parms scope_chain->template_parms 1134 1135#define processing_template_decl scope_chain->x_processing_template_decl 1136#define processing_specialization scope_chain->x_processing_specialization 1137#define processing_explicit_instantiation scope_chain->x_processing_explicit_instantiation 1138 1139/* RAII sentinel to handle clearing processing_template_decl and restoring 1140 it when done. */ 1141 1142struct processing_template_decl_sentinel 1143{ 1144 int saved; 1145 processing_template_decl_sentinel (bool reset = true) 1146 : saved (processing_template_decl) 1147 { 1148 if (reset) 1149 processing_template_decl = 0; 1150 } 1151 ~processing_template_decl_sentinel() 1152 { 1153 processing_template_decl = saved; 1154 } 1155}; 1156 1157/* RAII sentinel to disable certain warnings during template substitution 1158 and elsewhere. */ 1159 1160struct warning_sentinel 1161{ 1162 int &flag; 1163 int val; 1164 warning_sentinel(int& flag, bool suppress=true) 1165 : flag(flag), val(flag) { if (suppress) flag = 0; } 1166 ~warning_sentinel() { flag = val; } 1167}; 1168 1169/* The cached class binding level, from the most recently exited 1170 class, or NULL if none. */ 1171 1172#define previous_class_level scope_chain->x_previous_class_level 1173 1174/* A map from local variable declarations in the body of the template 1175 presently being instantiated to the corresponding instantiated 1176 local variables. */ 1177 1178#define local_specializations scope_chain->x_local_specializations 1179 1180/* Nonzero if we are parsing the operand of a noexcept operator. */ 1181 1182#define cp_noexcept_operand scope_chain->noexcept_operand 1183 1184/* A list of private types mentioned, for deferred access checking. */ 1185 1186struct GTY((for_user)) cxx_int_tree_map { 1187 unsigned int uid; 1188 tree to; 1189}; 1190 1191struct cxx_int_tree_map_hasher : ggc_hasher<cxx_int_tree_map *> 1192{ 1193 static hashval_t hash (cxx_int_tree_map *); 1194 static bool equal (cxx_int_tree_map *, cxx_int_tree_map *); 1195}; 1196 1197struct named_label_entry; 1198 1199struct named_label_hasher : ggc_hasher<named_label_entry *> 1200{ 1201 static hashval_t hash (named_label_entry *); 1202 static bool equal (named_label_entry *, named_label_entry *); 1203}; 1204 1205/* Global state pertinent to the current function. */ 1206 1207struct GTY(()) language_function { 1208 struct c_language_function base; 1209 1210 tree x_cdtor_label; 1211 tree x_current_class_ptr; 1212 tree x_current_class_ref; 1213 tree x_eh_spec_block; 1214 tree x_in_charge_parm; 1215 tree x_vtt_parm; 1216 tree x_return_value; 1217 tree x_auto_return_pattern; 1218 1219 BOOL_BITFIELD returns_value : 1; 1220 BOOL_BITFIELD returns_null : 1; 1221 BOOL_BITFIELD returns_abnormally : 1; 1222 BOOL_BITFIELD infinite_loop: 1; 1223 BOOL_BITFIELD x_in_function_try_handler : 1; 1224 BOOL_BITFIELD x_in_base_initializer : 1; 1225 1226 /* True if this function can throw an exception. */ 1227 BOOL_BITFIELD can_throw : 1; 1228 1229 BOOL_BITFIELD invalid_constexpr : 1; 1230 1231 hash_table<named_label_hasher> *x_named_labels; 1232 cp_binding_level *bindings; 1233 vec<tree, va_gc> *x_local_names; 1234 /* Tracking possibly infinite loops. This is a vec<tree> only because 1235 vec<bool> doesn't work with gtype. */ 1236 vec<tree, va_gc> *infinite_loops; 1237 hash_table<cxx_int_tree_map_hasher> *extern_decl_map; 1238}; 1239 1240/* The current C++-specific per-function global variables. */ 1241 1242#define cp_function_chain (cfun->language) 1243 1244/* In a constructor destructor, the point at which all derived class 1245 destroying/construction has been done. I.e., just before a 1246 constructor returns, or before any base class destroying will be done 1247 in a destructor. */ 1248 1249#define cdtor_label cp_function_chain->x_cdtor_label 1250 1251/* When we're processing a member function, current_class_ptr is the 1252 PARM_DECL for the `this' pointer. The current_class_ref is an 1253 expression for `*this'. */ 1254 1255#define current_class_ptr \ 1256 (*(cfun && cp_function_chain \ 1257 ? &cp_function_chain->x_current_class_ptr \ 1258 : &scope_chain->x_current_class_ptr)) 1259#define current_class_ref \ 1260 (*(cfun && cp_function_chain \ 1261 ? &cp_function_chain->x_current_class_ref \ 1262 : &scope_chain->x_current_class_ref)) 1263 1264/* The EH_SPEC_BLOCK for the exception-specifiers for the current 1265 function, if any. */ 1266 1267#define current_eh_spec_block cp_function_chain->x_eh_spec_block 1268 1269/* The `__in_chrg' parameter for the current function. Only used for 1270 constructors and destructors. */ 1271 1272#define current_in_charge_parm cp_function_chain->x_in_charge_parm 1273 1274/* The `__vtt_parm' parameter for the current function. Only used for 1275 constructors and destructors. */ 1276 1277#define current_vtt_parm cp_function_chain->x_vtt_parm 1278 1279/* Set to 0 at beginning of a function definition, set to 1 if 1280 a return statement that specifies a return value is seen. */ 1281 1282#define current_function_returns_value cp_function_chain->returns_value 1283 1284/* Set to 0 at beginning of a function definition, set to 1 if 1285 a return statement with no argument is seen. */ 1286 1287#define current_function_returns_null cp_function_chain->returns_null 1288 1289/* Set to 0 at beginning of a function definition, set to 1 if 1290 a call to a noreturn function is seen. */ 1291 1292#define current_function_returns_abnormally \ 1293 cp_function_chain->returns_abnormally 1294 1295/* Set to 0 at beginning of a function definition, set to 1 if we see an 1296 obvious infinite loop. This can have false positives and false 1297 negatives, so it should only be used as a heuristic. */ 1298 1299#define current_function_infinite_loop cp_function_chain->infinite_loop 1300 1301/* Nonzero if we are processing a base initializer. Zero elsewhere. */ 1302#define in_base_initializer cp_function_chain->x_in_base_initializer 1303 1304#define in_function_try_handler cp_function_chain->x_in_function_try_handler 1305 1306/* Expression always returned from function, or error_mark_node 1307 otherwise, for use by the automatic named return value optimization. */ 1308 1309#define current_function_return_value \ 1310 (cp_function_chain->x_return_value) 1311 1312/* A type involving 'auto' to be used for return type deduction. */ 1313 1314#define current_function_auto_return_pattern \ 1315 (cp_function_chain->x_auto_return_pattern) 1316 1317/* True if NAME is the IDENTIFIER_NODE for an overloaded "operator 1318 new" or "operator delete". */ 1319#define NEW_DELETE_OPNAME_P(NAME) \ 1320 ((NAME) == ansi_opname (NEW_EXPR) \ 1321 || (NAME) == ansi_opname (VEC_NEW_EXPR) \ 1322 || (NAME) == ansi_opname (DELETE_EXPR) \ 1323 || (NAME) == ansi_opname (VEC_DELETE_EXPR)) 1324 1325#define ansi_opname(CODE) \ 1326 (operator_name_info[(int) (CODE)].identifier) 1327#define ansi_assopname(CODE) \ 1328 (assignment_operator_name_info[(int) (CODE)].identifier) 1329 1330/* TRUE if a tree code represents a statement. */ 1331extern bool statement_code_p[MAX_TREE_CODES]; 1332 1333#define STATEMENT_CODE_P(CODE) statement_code_p[(int) (CODE)] 1334 1335enum languages { lang_c, lang_cplusplus, lang_java }; 1336 1337/* Macros to make error reporting functions' lives easier. */ 1338#define TYPE_LINKAGE_IDENTIFIER(NODE) \ 1339 (TYPE_IDENTIFIER (TYPE_MAIN_VARIANT (NODE))) 1340#define TYPE_NAME_STRING(NODE) (IDENTIFIER_POINTER (TYPE_IDENTIFIER (NODE))) 1341#define TYPE_NAME_LENGTH(NODE) (IDENTIFIER_LENGTH (TYPE_IDENTIFIER (NODE))) 1342 1343/* Nonzero if NODE has no name for linkage purposes. */ 1344#define TYPE_ANONYMOUS_P(NODE) \ 1345 (OVERLOAD_TYPE_P (NODE) && ANON_AGGRNAME_P (TYPE_LINKAGE_IDENTIFIER (NODE))) 1346 1347/* The _DECL for this _TYPE. */ 1348#define TYPE_MAIN_DECL(NODE) (TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE))) 1349 1350/* Nonzero if T is a type that could resolve to any kind of concrete type 1351 at instantiation time. */ 1352#define WILDCARD_TYPE_P(T) \ 1353 (TREE_CODE (T) == TEMPLATE_TYPE_PARM \ 1354 || TREE_CODE (T) == TYPENAME_TYPE \ 1355 || TREE_CODE (T) == TYPEOF_TYPE \ 1356 || TREE_CODE (T) == BOUND_TEMPLATE_TEMPLATE_PARM \ 1357 || TREE_CODE (T) == DECLTYPE_TYPE) 1358 1359/* Nonzero if T is a class (or struct or union) type. Also nonzero 1360 for template type parameters, typename types, and instantiated 1361 template template parameters. Keep these checks in ascending code 1362 order. */ 1363#define MAYBE_CLASS_TYPE_P(T) (WILDCARD_TYPE_P (T) || CLASS_TYPE_P (T)) 1364 1365/* Set CLASS_TYPE_P for T to VAL. T must be a class, struct, or 1366 union type. */ 1367#define SET_CLASS_TYPE_P(T, VAL) \ 1368 (TYPE_LANG_FLAG_5 (T) = (VAL)) 1369 1370/* Nonzero if T is a class type. Zero for template type parameters, 1371 typename types, and so forth. */ 1372#define CLASS_TYPE_P(T) \ 1373 (RECORD_OR_UNION_CODE_P (TREE_CODE (T)) && TYPE_LANG_FLAG_5 (T)) 1374 1375/* Nonzero if T is a class type but not an union. */ 1376#define NON_UNION_CLASS_TYPE_P(T) \ 1377 (CLASS_TYPE_P (T) && TREE_CODE (T) != UNION_TYPE) 1378 1379/* Keep these checks in ascending code order. */ 1380#define RECORD_OR_UNION_CODE_P(T) \ 1381 ((T) == RECORD_TYPE || (T) == UNION_TYPE) 1382#define OVERLOAD_TYPE_P(T) \ 1383 (CLASS_TYPE_P (T) || TREE_CODE (T) == ENUMERAL_TYPE) 1384 1385/* True if this a "Java" type, defined in 'extern "Java"'. */ 1386#define TYPE_FOR_JAVA(NODE) TYPE_LANG_FLAG_3 (NODE) 1387 1388/* True if this type is dependent. This predicate is only valid if 1389 TYPE_DEPENDENT_P_VALID is true. */ 1390#define TYPE_DEPENDENT_P(NODE) TYPE_LANG_FLAG_0 (NODE) 1391 1392/* True if dependent_type_p has been called for this type, with the 1393 result that TYPE_DEPENDENT_P is valid. */ 1394#define TYPE_DEPENDENT_P_VALID(NODE) TYPE_LANG_FLAG_6(NODE) 1395 1396/* Nonzero if this type is const-qualified. */ 1397#define CP_TYPE_CONST_P(NODE) \ 1398 ((cp_type_quals (NODE) & TYPE_QUAL_CONST) != 0) 1399 1400/* Nonzero if this type is volatile-qualified. */ 1401#define CP_TYPE_VOLATILE_P(NODE) \ 1402 ((cp_type_quals (NODE) & TYPE_QUAL_VOLATILE) != 0) 1403 1404/* Nonzero if this type is restrict-qualified. */ 1405#define CP_TYPE_RESTRICT_P(NODE) \ 1406 ((cp_type_quals (NODE) & TYPE_QUAL_RESTRICT) != 0) 1407 1408/* Nonzero if this type is const-qualified, but not 1409 volatile-qualified. Other qualifiers are ignored. This macro is 1410 used to test whether or not it is OK to bind an rvalue to a 1411 reference. */ 1412#define CP_TYPE_CONST_NON_VOLATILE_P(NODE) \ 1413 ((cp_type_quals (NODE) & (TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE)) \ 1414 == TYPE_QUAL_CONST) 1415 1416#define FUNCTION_ARG_CHAIN(NODE) \ 1417 TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (NODE))) 1418 1419/* Given a FUNCTION_DECL, returns the first TREE_LIST out of TYPE_ARG_TYPES 1420 which refers to a user-written parameter. */ 1421#define FUNCTION_FIRST_USER_PARMTYPE(NODE) \ 1422 skip_artificial_parms_for ((NODE), TYPE_ARG_TYPES (TREE_TYPE (NODE))) 1423 1424/* Similarly, but for DECL_ARGUMENTS. */ 1425#define FUNCTION_FIRST_USER_PARM(NODE) \ 1426 skip_artificial_parms_for ((NODE), DECL_ARGUMENTS (NODE)) 1427 1428/* Nonzero iff TYPE is derived from PARENT. Ignores accessibility and 1429 ambiguity issues. */ 1430#define DERIVED_FROM_P(PARENT, TYPE) \ 1431 (lookup_base ((TYPE), (PARENT), ba_any, NULL, tf_none) != NULL_TREE) 1432 1433/* Gives the visibility specification for a class type. */ 1434#define CLASSTYPE_VISIBILITY(TYPE) \ 1435 DECL_VISIBILITY (TYPE_MAIN_DECL (TYPE)) 1436#define CLASSTYPE_VISIBILITY_SPECIFIED(TYPE) \ 1437 DECL_VISIBILITY_SPECIFIED (TYPE_MAIN_DECL (TYPE)) 1438 1439typedef struct GTY (()) tree_pair_s { 1440 tree purpose; 1441 tree value; 1442} tree_pair_s; 1443typedef tree_pair_s *tree_pair_p; 1444 1445/* This is a few header flags for 'struct lang_type'. Actually, 1446 all but the first are used only for lang_type_class; they 1447 are put in this structure to save space. */ 1448struct GTY(()) lang_type_header { 1449 BOOL_BITFIELD is_lang_type_class : 1; 1450 1451 BOOL_BITFIELD has_type_conversion : 1; 1452 BOOL_BITFIELD has_copy_ctor : 1; 1453 BOOL_BITFIELD has_default_ctor : 1; 1454 BOOL_BITFIELD const_needs_init : 1; 1455 BOOL_BITFIELD ref_needs_init : 1; 1456 BOOL_BITFIELD has_const_copy_assign : 1; 1457 1458 BOOL_BITFIELD spare : 1; 1459}; 1460 1461/* This structure provides additional information above and beyond 1462 what is provide in the ordinary tree_type. In the past, we used it 1463 for the types of class types, template parameters types, typename 1464 types, and so forth. However, there can be many (tens to hundreds 1465 of thousands) of template parameter types in a compilation, and 1466 there's no need for this additional information in that case. 1467 Therefore, we now use this data structure only for class types. 1468 1469 In the past, it was thought that there would be relatively few 1470 class types. However, in the presence of heavy use of templates, 1471 many (i.e., thousands) of classes can easily be generated. 1472 Therefore, we should endeavor to keep the size of this structure to 1473 a minimum. */ 1474struct GTY(()) lang_type_class { 1475 struct lang_type_header h; 1476 1477 unsigned char align; 1478 1479 unsigned has_mutable : 1; 1480 unsigned com_interface : 1; 1481 unsigned non_pod_class : 1; 1482 unsigned nearly_empty_p : 1; 1483 unsigned user_align : 1; 1484 unsigned has_copy_assign : 1; 1485 unsigned has_new : 1; 1486 unsigned has_array_new : 1; 1487 1488 unsigned gets_delete : 2; 1489 unsigned interface_only : 1; 1490 unsigned interface_unknown : 1; 1491 unsigned contains_empty_class_p : 1; 1492 unsigned anon_aggr : 1; 1493 unsigned non_zero_init : 1; 1494 unsigned empty_p : 1; 1495 1496 unsigned vec_new_uses_cookie : 1; 1497 unsigned declared_class : 1; 1498 unsigned diamond_shaped : 1; 1499 unsigned repeated_base : 1; 1500 unsigned being_defined : 1; 1501 unsigned java_interface : 1; 1502 unsigned debug_requested : 1; 1503 unsigned fields_readonly : 1; 1504 1505 unsigned use_template : 2; 1506 unsigned ptrmemfunc_flag : 1; 1507 unsigned was_anonymous : 1; 1508 unsigned lazy_default_ctor : 1; 1509 unsigned lazy_copy_ctor : 1; 1510 unsigned lazy_copy_assign : 1; 1511 unsigned lazy_destructor : 1; 1512 1513 unsigned has_const_copy_ctor : 1; 1514 unsigned has_complex_copy_ctor : 1; 1515 unsigned has_complex_copy_assign : 1; 1516 unsigned non_aggregate : 1; 1517 unsigned has_complex_dflt : 1; 1518 unsigned has_list_ctor : 1; 1519 unsigned non_std_layout : 1; 1520 unsigned is_literal : 1; 1521 1522 unsigned lazy_move_ctor : 1; 1523 unsigned lazy_move_assign : 1; 1524 unsigned has_complex_move_ctor : 1; 1525 unsigned has_complex_move_assign : 1; 1526 unsigned has_constexpr_ctor : 1; 1527 1528 /* When adding a flag here, consider whether or not it ought to 1529 apply to a template instance if it applies to the template. If 1530 so, make sure to copy it in instantiate_class_template! */ 1531 1532 /* There are some bits left to fill out a 32-bit word. Keep track 1533 of this by updating the size of this bitfield whenever you add or 1534 remove a flag. */ 1535 unsigned dummy : 3; 1536 1537 tree primary_base; 1538 vec<tree_pair_s, va_gc> *vcall_indices; 1539 tree vtables; 1540 tree typeinfo_var; 1541 vec<tree, va_gc> *vbases; 1542 binding_table nested_udts; 1543 tree as_base; 1544 vec<tree, va_gc> *pure_virtuals; 1545 tree friend_classes; 1546 vec<tree, va_gc> * GTY((reorder ("resort_type_method_vec"))) methods; 1547 tree key_method; 1548 tree decl_list; 1549 tree template_info; 1550 tree befriending_classes; 1551 /* In a RECORD_TYPE, information specific to Objective-C++, such 1552 as a list of adopted protocols or a pointer to a corresponding 1553 @interface. See objc/objc-act.h for details. */ 1554 tree objc_info; 1555 /* sorted_fields is sorted based on a pointer, so we need to be able 1556 to resort it if pointers get rearranged. */ 1557 struct sorted_fields_type * GTY ((reorder ("resort_sorted_fields"))) 1558 sorted_fields; 1559 /* FIXME reuse another field? */ 1560 tree lambda_expr; 1561}; 1562 1563struct GTY(()) lang_type_ptrmem { 1564 struct lang_type_header h; 1565 tree record; 1566}; 1567 1568struct GTY(()) lang_type { 1569 union lang_type_u 1570 { 1571 struct lang_type_header GTY((skip (""))) h; 1572 struct lang_type_class GTY((tag ("1"))) c; 1573 struct lang_type_ptrmem GTY((tag ("0"))) ptrmem; 1574 } GTY((desc ("%h.h.is_lang_type_class"))) u; 1575}; 1576 1577#if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007) 1578 1579#define LANG_TYPE_CLASS_CHECK(NODE) __extension__ \ 1580({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \ 1581 if (! lt->u.h.is_lang_type_class) \ 1582 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 1583 <->u.c; }) 1584 1585#define LANG_TYPE_PTRMEM_CHECK(NODE) __extension__ \ 1586({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \ 1587 if (lt->u.h.is_lang_type_class) \ 1588 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 1589 <->u.ptrmem; }) 1590 1591#else 1592 1593#define LANG_TYPE_CLASS_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.c) 1594#define LANG_TYPE_PTRMEM_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.ptrmem) 1595 1596#endif /* ENABLE_TREE_CHECKING */ 1597 1598/* Nonzero for _CLASSTYPE means that operator delete is defined. */ 1599#define TYPE_GETS_DELETE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->gets_delete) 1600#define TYPE_GETS_REG_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 1) 1601 1602/* Nonzero if `new NODE[x]' should cause the allocation of extra 1603 storage to indicate how many array elements are in use. */ 1604#define TYPE_VEC_NEW_USES_COOKIE(NODE) \ 1605 (CLASS_TYPE_P (NODE) \ 1606 && LANG_TYPE_CLASS_CHECK (NODE)->vec_new_uses_cookie) 1607 1608/* Nonzero means that this _CLASSTYPE node defines ways of converting 1609 itself to other types. */ 1610#define TYPE_HAS_CONVERSION(NODE) \ 1611 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_type_conversion) 1612 1613/* Nonzero means that NODE (a class type) has a default constructor -- 1614 but that it has not yet been declared. */ 1615#define CLASSTYPE_LAZY_DEFAULT_CTOR(NODE) \ 1616 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_default_ctor) 1617 1618/* Nonzero means that NODE (a class type) has a copy constructor -- 1619 but that it has not yet been declared. */ 1620#define CLASSTYPE_LAZY_COPY_CTOR(NODE) \ 1621 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_ctor) 1622 1623/* Nonzero means that NODE (a class type) has a move constructor -- 1624 but that it has not yet been declared. */ 1625#define CLASSTYPE_LAZY_MOVE_CTOR(NODE) \ 1626 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_move_ctor) 1627 1628/* Nonzero means that NODE (a class type) has an assignment operator 1629 -- but that it has not yet been declared. */ 1630#define CLASSTYPE_LAZY_COPY_ASSIGN(NODE) \ 1631 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_assign) 1632 1633/* Nonzero means that NODE (a class type) has an assignment operator 1634 -- but that it has not yet been declared. */ 1635#define CLASSTYPE_LAZY_MOVE_ASSIGN(NODE) \ 1636 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_move_assign) 1637 1638/* Nonzero means that NODE (a class type) has a destructor -- but that 1639 it has not yet been declared. */ 1640#define CLASSTYPE_LAZY_DESTRUCTOR(NODE) \ 1641 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_destructor) 1642 1643/* Nonzero means that NODE (a class type) is final */ 1644#define CLASSTYPE_FINAL(NODE) \ 1645 TYPE_FINAL_P (NODE) 1646 1647 1648/* Nonzero means that this _CLASSTYPE node overloads operator=(X&). */ 1649#define TYPE_HAS_COPY_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_copy_assign) 1650 1651/* True iff the class type NODE has an "operator =" whose parameter 1652 has a parameter of type "const X&". */ 1653#define TYPE_HAS_CONST_COPY_ASSIGN(NODE) \ 1654 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_const_copy_assign) 1655 1656/* Nonzero means that this _CLASSTYPE node has an X(X&) constructor. */ 1657#define TYPE_HAS_COPY_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->h.has_copy_ctor) 1658#define TYPE_HAS_CONST_COPY_CTOR(NODE) \ 1659 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_copy_ctor) 1660 1661/* Nonzero if this class has an X(initializer_list<T>) constructor. */ 1662#define TYPE_HAS_LIST_CTOR(NODE) \ 1663 (LANG_TYPE_CLASS_CHECK (NODE)->has_list_ctor) 1664 1665/* Nonzero if this class has a constexpr constructor other than a copy/move 1666 constructor. Note that a class can have constexpr constructors for 1667 static initialization even if it isn't a literal class. */ 1668#define TYPE_HAS_CONSTEXPR_CTOR(NODE) \ 1669 (LANG_TYPE_CLASS_CHECK (NODE)->has_constexpr_ctor) 1670 1671/* Nonzero if this class defines an overloaded operator new. (An 1672 operator new [] doesn't count.) */ 1673#define TYPE_HAS_NEW_OPERATOR(NODE) \ 1674 (LANG_TYPE_CLASS_CHECK (NODE)->has_new) 1675 1676/* Nonzero if this class defines an overloaded operator new[]. */ 1677#define TYPE_HAS_ARRAY_NEW_OPERATOR(NODE) \ 1678 (LANG_TYPE_CLASS_CHECK (NODE)->has_array_new) 1679 1680/* Nonzero means that this type is being defined. I.e., the left brace 1681 starting the definition of this type has been seen. */ 1682#define TYPE_BEING_DEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->being_defined) 1683 1684/* Nonzero means that this type is either complete or being defined, so we 1685 can do lookup in it. */ 1686#define COMPLETE_OR_OPEN_TYPE_P(NODE) \ 1687 (COMPLETE_TYPE_P (NODE) || (CLASS_TYPE_P (NODE) && TYPE_BEING_DEFINED (NODE))) 1688 1689/* Mark bits for repeated base checks. */ 1690#define TYPE_MARKED_P(NODE) TREE_LANG_FLAG_6 (TYPE_CHECK (NODE)) 1691 1692/* Nonzero if the class NODE has multiple paths to the same (virtual) 1693 base object. */ 1694#define CLASSTYPE_DIAMOND_SHAPED_P(NODE) \ 1695 (LANG_TYPE_CLASS_CHECK(NODE)->diamond_shaped) 1696 1697/* Nonzero if the class NODE has multiple instances of the same base 1698 type. */ 1699#define CLASSTYPE_REPEATED_BASE_P(NODE) \ 1700 (LANG_TYPE_CLASS_CHECK(NODE)->repeated_base) 1701 1702/* The member function with which the vtable will be emitted: 1703 the first noninline non-pure-virtual member function. NULL_TREE 1704 if there is no key function or if this is a class template */ 1705#define CLASSTYPE_KEY_METHOD(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->key_method) 1706 1707/* Vector member functions defined in this class. Each element is 1708 either a FUNCTION_DECL, a TEMPLATE_DECL, or an OVERLOAD. All 1709 functions with the same name end up in the same slot. The first 1710 two elements are for constructors, and destructors, respectively. 1711 All template conversion operators to innermost template dependent 1712 types are overloaded on the next slot, if they exist. Note, the 1713 names for these functions will not all be the same. The 1714 non-template conversion operators & templated conversions to 1715 non-innermost template types are next, followed by ordinary member 1716 functions. There may be empty entries at the end of the vector. 1717 The conversion operators are unsorted. The ordinary member 1718 functions are sorted, once the class is complete. */ 1719#define CLASSTYPE_METHOD_VEC(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->methods) 1720 1721/* For class templates, this is a TREE_LIST of all member data, 1722 functions, types, and friends in the order of declaration. 1723 The TREE_PURPOSE of each TREE_LIST is NULL_TREE for a friend, 1724 and the RECORD_TYPE for the class template otherwise. */ 1725#define CLASSTYPE_DECL_LIST(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->decl_list) 1726 1727/* The slot in the CLASSTYPE_METHOD_VEC where constructors go. */ 1728#define CLASSTYPE_CONSTRUCTOR_SLOT 0 1729 1730/* The slot in the CLASSTYPE_METHOD_VEC where destructors go. */ 1731#define CLASSTYPE_DESTRUCTOR_SLOT 1 1732 1733/* The first slot in the CLASSTYPE_METHOD_VEC where conversion 1734 operators can appear. */ 1735#define CLASSTYPE_FIRST_CONVERSION_SLOT 2 1736 1737/* A FUNCTION_DECL or OVERLOAD for the constructors for NODE. These 1738 are the constructors that take an in-charge parameter. */ 1739#define CLASSTYPE_CONSTRUCTORS(NODE) \ 1740 ((*CLASSTYPE_METHOD_VEC (NODE))[CLASSTYPE_CONSTRUCTOR_SLOT]) 1741 1742/* A FUNCTION_DECL for the destructor for NODE. These are the 1743 destructors that take an in-charge parameter. If 1744 CLASSTYPE_LAZY_DESTRUCTOR is true, then this entry will be NULL 1745 until the destructor is created with lazily_declare_fn. */ 1746#define CLASSTYPE_DESTRUCTORS(NODE) \ 1747 (CLASSTYPE_METHOD_VEC (NODE) \ 1748 ? (*CLASSTYPE_METHOD_VEC (NODE))[CLASSTYPE_DESTRUCTOR_SLOT] \ 1749 : NULL_TREE) 1750 1751/* A dictionary of the nested user-defined-types (class-types, or enums) 1752 found within this class. This table includes nested member class 1753 templates. */ 1754#define CLASSTYPE_NESTED_UTDS(NODE) \ 1755 (LANG_TYPE_CLASS_CHECK (NODE)->nested_udts) 1756 1757/* Nonzero if NODE has a primary base class, i.e., a base class with 1758 which it shares the virtual function table pointer. */ 1759#define CLASSTYPE_HAS_PRIMARY_BASE_P(NODE) \ 1760 (CLASSTYPE_PRIMARY_BINFO (NODE) != NULL_TREE) 1761 1762/* If non-NULL, this is the binfo for the primary base class, i.e., 1763 the base class which contains the virtual function table pointer 1764 for this class. */ 1765#define CLASSTYPE_PRIMARY_BINFO(NODE) \ 1766 (LANG_TYPE_CLASS_CHECK (NODE)->primary_base) 1767 1768/* A vector of BINFOs for the direct and indirect virtual base classes 1769 that this type uses in a post-order depth-first left-to-right 1770 order. (In other words, these bases appear in the order that they 1771 should be initialized.) */ 1772#define CLASSTYPE_VBASECLASSES(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->vbases) 1773 1774/* The type corresponding to NODE when NODE is used as a base class, 1775 i.e., NODE without virtual base classes. */ 1776 1777#define CLASSTYPE_AS_BASE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->as_base) 1778 1779/* True iff NODE is the CLASSTYPE_AS_BASE version of some type. */ 1780 1781#define IS_FAKE_BASE_TYPE(NODE) \ 1782 (TREE_CODE (NODE) == RECORD_TYPE \ 1783 && TYPE_CONTEXT (NODE) && CLASS_TYPE_P (TYPE_CONTEXT (NODE)) \ 1784 && CLASSTYPE_AS_BASE (TYPE_CONTEXT (NODE)) == (NODE)) 1785 1786/* These are the size and alignment of the type without its virtual 1787 base classes, for when we use this type as a base itself. */ 1788#define CLASSTYPE_SIZE(NODE) TYPE_SIZE (CLASSTYPE_AS_BASE (NODE)) 1789#define CLASSTYPE_SIZE_UNIT(NODE) TYPE_SIZE_UNIT (CLASSTYPE_AS_BASE (NODE)) 1790#define CLASSTYPE_ALIGN(NODE) TYPE_ALIGN (CLASSTYPE_AS_BASE (NODE)) 1791#define CLASSTYPE_USER_ALIGN(NODE) TYPE_USER_ALIGN (CLASSTYPE_AS_BASE (NODE)) 1792 1793/* The alignment of NODE, without its virtual bases, in bytes. */ 1794#define CLASSTYPE_ALIGN_UNIT(NODE) \ 1795 (CLASSTYPE_ALIGN (NODE) / BITS_PER_UNIT) 1796 1797/* True if this a Java interface type, declared with 1798 '__attribute__ ((java_interface))'. */ 1799#define TYPE_JAVA_INTERFACE(NODE) \ 1800 (LANG_TYPE_CLASS_CHECK (NODE)->java_interface) 1801 1802/* A vec<tree> of virtual functions which cannot be inherited by 1803 derived classes. When deriving from this type, the derived 1804 class must provide its own definition for each of these functions. */ 1805#define CLASSTYPE_PURE_VIRTUALS(NODE) \ 1806 (LANG_TYPE_CLASS_CHECK (NODE)->pure_virtuals) 1807 1808/* Nonzero means that this type is an abstract class type. */ 1809#define ABSTRACT_CLASS_TYPE_P(NODE) \ 1810 (CLASS_TYPE_P (NODE) && CLASSTYPE_PURE_VIRTUALS(NODE)) 1811 1812/* Nonzero means that this type has an X() constructor. */ 1813#define TYPE_HAS_DEFAULT_CONSTRUCTOR(NODE) \ 1814 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_default_ctor) 1815 1816/* Nonzero means that this type contains a mutable member. */ 1817#define CLASSTYPE_HAS_MUTABLE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_mutable) 1818#define TYPE_HAS_MUTABLE_P(NODE) (cp_has_mutable_p (NODE)) 1819 1820/* Nonzero means that this class type is not POD for the purpose of layout 1821 (as defined in the ABI). This is different from the language's POD. */ 1822#define CLASSTYPE_NON_LAYOUT_POD_P(NODE) \ 1823 (LANG_TYPE_CLASS_CHECK (NODE)->non_pod_class) 1824 1825/* Nonzero means that this class type is a non-standard-layout class. */ 1826#define CLASSTYPE_NON_STD_LAYOUT(NODE) \ 1827 (LANG_TYPE_CLASS_CHECK (NODE)->non_std_layout) 1828 1829/* Nonzero means that this class contains pod types whose default 1830 initialization is not a zero initialization (namely, pointers to 1831 data members). */ 1832#define CLASSTYPE_NON_ZERO_INIT_P(NODE) \ 1833 (LANG_TYPE_CLASS_CHECK (NODE)->non_zero_init) 1834 1835/* Nonzero if this class is "empty" in the sense of the C++ ABI. */ 1836#define CLASSTYPE_EMPTY_P(NODE) \ 1837 (LANG_TYPE_CLASS_CHECK (NODE)->empty_p) 1838 1839/* Nonzero if this class is "nearly empty", i.e., contains only a 1840 virtual function table pointer. */ 1841#define CLASSTYPE_NEARLY_EMPTY_P(NODE) \ 1842 (LANG_TYPE_CLASS_CHECK (NODE)->nearly_empty_p) 1843 1844/* Nonzero if this class contains an empty subobject. */ 1845#define CLASSTYPE_CONTAINS_EMPTY_CLASS_P(NODE) \ 1846 (LANG_TYPE_CLASS_CHECK (NODE)->contains_empty_class_p) 1847 1848/* A list of class types of which this type is a friend. The 1849 TREE_VALUE is normally a TYPE, but will be a TEMPLATE_DECL in the 1850 case of a template friend. */ 1851#define CLASSTYPE_FRIEND_CLASSES(NODE) \ 1852 (LANG_TYPE_CLASS_CHECK (NODE)->friend_classes) 1853 1854/* A list of the classes which grant friendship to this class. */ 1855#define CLASSTYPE_BEFRIENDING_CLASSES(NODE) \ 1856 (LANG_TYPE_CLASS_CHECK (NODE)->befriending_classes) 1857 1858/* The associated LAMBDA_EXPR that made this class. */ 1859#define CLASSTYPE_LAMBDA_EXPR(NODE) \ 1860 (LANG_TYPE_CLASS_CHECK (NODE)->lambda_expr) 1861/* The extra mangling scope for this closure type. */ 1862#define LAMBDA_TYPE_EXTRA_SCOPE(NODE) \ 1863 (LAMBDA_EXPR_EXTRA_SCOPE (CLASSTYPE_LAMBDA_EXPR (NODE))) 1864 1865/* Say whether this node was declared as a "class" or a "struct". */ 1866#define CLASSTYPE_DECLARED_CLASS(NODE) \ 1867 (LANG_TYPE_CLASS_CHECK (NODE)->declared_class) 1868 1869/* Nonzero if this class has const members 1870 which have no specified initialization. */ 1871#define CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE) \ 1872 (TYPE_LANG_SPECIFIC (NODE) \ 1873 ? LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init : 0) 1874#define SET_CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE, VALUE) \ 1875 (LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init = (VALUE)) 1876 1877/* Nonzero if this class has ref members 1878 which have no specified initialization. */ 1879#define CLASSTYPE_REF_FIELDS_NEED_INIT(NODE) \ 1880 (TYPE_LANG_SPECIFIC (NODE) \ 1881 ? LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init : 0) 1882#define SET_CLASSTYPE_REF_FIELDS_NEED_INIT(NODE, VALUE) \ 1883 (LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init = (VALUE)) 1884 1885/* Nonzero if this class is included from a header file which employs 1886 `#pragma interface', and it is not included in its implementation file. */ 1887#define CLASSTYPE_INTERFACE_ONLY(NODE) \ 1888 (LANG_TYPE_CLASS_CHECK (NODE)->interface_only) 1889 1890/* True if we have already determined whether or not vtables, VTTs, 1891 typeinfo, and other similar per-class data should be emitted in 1892 this translation unit. This flag does not indicate whether or not 1893 these items should be emitted; it only indicates that we know one 1894 way or the other. */ 1895#define CLASSTYPE_INTERFACE_KNOWN(NODE) \ 1896 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown == 0) 1897/* The opposite of CLASSTYPE_INTERFACE_KNOWN. */ 1898#define CLASSTYPE_INTERFACE_UNKNOWN(NODE) \ 1899 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown) 1900 1901#define SET_CLASSTYPE_INTERFACE_UNKNOWN_X(NODE,X) \ 1902 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = !!(X)) 1903#define SET_CLASSTYPE_INTERFACE_UNKNOWN(NODE) \ 1904 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 1) 1905#define SET_CLASSTYPE_INTERFACE_KNOWN(NODE) \ 1906 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 0) 1907 1908/* Nonzero if a _DECL node requires us to output debug info for this class. */ 1909#define CLASSTYPE_DEBUG_REQUESTED(NODE) \ 1910 (LANG_TYPE_CLASS_CHECK (NODE)->debug_requested) 1911 1912/* Additional macros for inheritance information. */ 1913 1914/* Nonzero means that this class is on a path leading to a new vtable. */ 1915#define BINFO_VTABLE_PATH_MARKED(NODE) BINFO_FLAG_1 (NODE) 1916 1917/* Nonzero means B (a BINFO) has its own vtable. Any copies will not 1918 have this flag set. */ 1919#define BINFO_NEW_VTABLE_MARKED(B) (BINFO_FLAG_2 (B)) 1920 1921/* Compare a BINFO_TYPE with another type for equality. For a binfo, 1922 this is functionally equivalent to using same_type_p, but 1923 measurably faster. At least one of the arguments must be a 1924 BINFO_TYPE. The other can be a BINFO_TYPE or a regular type. If 1925 BINFO_TYPE(T) ever stops being the main variant of the class the 1926 binfo is for, this macro must change. */ 1927#define SAME_BINFO_TYPE_P(A, B) ((A) == (B)) 1928 1929/* Any subobject that needs a new vtable must have a vptr and must not 1930 be a non-virtual primary base (since it would then use the vtable from a 1931 derived class and never become non-primary.) */ 1932#define SET_BINFO_NEW_VTABLE_MARKED(B) \ 1933 (BINFO_NEW_VTABLE_MARKED (B) = 1, \ 1934 gcc_assert (!BINFO_PRIMARY_P (B) || BINFO_VIRTUAL_P (B)), \ 1935 gcc_assert (TYPE_VFIELD (BINFO_TYPE (B)))) 1936 1937/* Nonzero if this binfo is for a dependent base - one that should not 1938 be searched. */ 1939#define BINFO_DEPENDENT_BASE_P(NODE) BINFO_FLAG_3 (NODE) 1940 1941/* Nonzero if this binfo has lost its primary base binfo (because that 1942 is a nearly-empty virtual base that has been taken by some other 1943 base in the complete hierarchy. */ 1944#define BINFO_LOST_PRIMARY_P(NODE) BINFO_FLAG_4 (NODE) 1945 1946/* Nonzero if this BINFO is a primary base class. */ 1947#define BINFO_PRIMARY_P(NODE) BINFO_FLAG_5(NODE) 1948 1949/* Used by various search routines. */ 1950#define IDENTIFIER_MARKED(NODE) TREE_LANG_FLAG_0 (NODE) 1951 1952/* A vec<tree_pair_s> of the vcall indices associated with the class 1953 NODE. The PURPOSE of each element is a FUNCTION_DECL for a virtual 1954 function. The VALUE is the index into the virtual table where the 1955 vcall offset for that function is stored, when NODE is a virtual 1956 base. */ 1957#define CLASSTYPE_VCALL_INDICES(NODE) \ 1958 (LANG_TYPE_CLASS_CHECK (NODE)->vcall_indices) 1959 1960/* The various vtables for the class NODE. The primary vtable will be 1961 first, followed by the construction vtables and VTT, if any. */ 1962#define CLASSTYPE_VTABLES(NODE) \ 1963 (LANG_TYPE_CLASS_CHECK (NODE)->vtables) 1964 1965/* The std::type_info variable representing this class, or NULL if no 1966 such variable has been created. This field is only set for the 1967 TYPE_MAIN_VARIANT of the class. */ 1968#define CLASSTYPE_TYPEINFO_VAR(NODE) \ 1969 (LANG_TYPE_CLASS_CHECK (NODE)->typeinfo_var) 1970 1971/* Accessor macros for the BINFO_VIRTUALS list. */ 1972 1973/* The number of bytes by which to adjust the `this' pointer when 1974 calling this virtual function. Subtract this value from the this 1975 pointer. Always non-NULL, might be constant zero though. */ 1976#define BV_DELTA(NODE) (TREE_PURPOSE (NODE)) 1977 1978/* If non-NULL, the vtable index at which to find the vcall offset 1979 when calling this virtual function. Add the value at that vtable 1980 index to the this pointer. */ 1981#define BV_VCALL_INDEX(NODE) (TREE_TYPE (NODE)) 1982 1983/* The function to call. */ 1984#define BV_FN(NODE) (TREE_VALUE (NODE)) 1985 1986/* Whether or not this entry is for a lost primary virtual base. */ 1987#define BV_LOST_PRIMARY(NODE) (TREE_LANG_FLAG_0 (NODE)) 1988 1989/* For FUNCTION_TYPE or METHOD_TYPE, a list of the exceptions that 1990 this type can raise. Each TREE_VALUE is a _TYPE. The TREE_VALUE 1991 will be NULL_TREE to indicate a throw specification of `()', or 1992 no exceptions allowed. For a noexcept specification, TREE_VALUE 1993 is NULL_TREE and TREE_PURPOSE is the constant-expression. For 1994 a deferred noexcept-specification, TREE_PURPOSE is a DEFERRED_NOEXCEPT 1995 (for templates) or an OVERLOAD list of functions (for implicitly 1996 declared functions). */ 1997#define TYPE_RAISES_EXCEPTIONS(NODE) \ 1998 TYPE_LANG_SLOT_1 (FUNC_OR_METHOD_CHECK (NODE)) 1999 2000/* For FUNCTION_TYPE or METHOD_TYPE, return 1 iff it is declared `throw()' 2001 or noexcept(true). */ 2002#define TYPE_NOTHROW_P(NODE) nothrow_spec_p (TYPE_RAISES_EXCEPTIONS (NODE)) 2003 2004/* For FUNCTION_TYPE or METHOD_TYPE, true if NODE is noexcept. This is the 2005 case for things declared noexcept(true) and, with -fnothrow-opt, for 2006 throw() functions. */ 2007#define TYPE_NOEXCEPT_P(NODE) type_noexcept_p (NODE) 2008 2009/* The binding level associated with the namespace. */ 2010#define NAMESPACE_LEVEL(NODE) \ 2011 (LANG_DECL_NS_CHECK (NODE)->level) 2012 2013/* Flags shared by all forms of DECL_LANG_SPECIFIC. 2014 2015 Some of the flags live here only to make lang_decl_min/fn smaller. Do 2016 not make this struct larger than 32 bits; instead, make sel smaller. */ 2017 2018struct GTY(()) lang_decl_base { 2019 unsigned selector : 16; /* Larger than necessary for faster access. */ 2020 ENUM_BITFIELD(languages) language : 4; 2021 unsigned use_template : 2; 2022 unsigned not_really_extern : 1; /* var or fn */ 2023 unsigned initialized_in_class : 1; /* var or fn */ 2024 unsigned repo_available_p : 1; /* var or fn */ 2025 unsigned threadprivate_or_deleted_p : 1; /* var or fn */ 2026 unsigned anticipated_p : 1; /* fn, type or template */ 2027 unsigned friend_attr : 1; /* fn, type or template */ 2028 unsigned template_conv_p : 1; /* var or template */ 2029 unsigned odr_used : 1; /* var or fn */ 2030 unsigned u2sel : 1; 2031 /* 1 spare bit */ 2032}; 2033 2034/* True for DECL codes which have template info and access. */ 2035#define LANG_DECL_HAS_MIN(NODE) \ 2036 (VAR_OR_FUNCTION_DECL_P (NODE) \ 2037 || TREE_CODE (NODE) == FIELD_DECL \ 2038 || TREE_CODE (NODE) == CONST_DECL \ 2039 || TREE_CODE (NODE) == TYPE_DECL \ 2040 || TREE_CODE (NODE) == TEMPLATE_DECL \ 2041 || TREE_CODE (NODE) == USING_DECL) 2042 2043/* DECL_LANG_SPECIFIC for the above codes. */ 2044 2045struct GTY(()) lang_decl_min { 2046 struct lang_decl_base base; 2047 2048 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is 2049 THUNK_ALIAS. 2050 In a FUNCTION_DECL for which DECL_THUNK_P does not hold, 2051 VAR_DECL, TYPE_DECL, or TEMPLATE_DECL, this is 2052 DECL_TEMPLATE_INFO. */ 2053 tree template_info; 2054 2055 union lang_decl_u2 { 2056 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is 2057 THUNK_VIRTUAL_OFFSET. 2058 Otherwise this is DECL_ACCESS. */ 2059 tree GTY ((tag ("0"))) access; 2060 2061 /* For VAR_DECL in function, this is DECL_DISCRIMINATOR. */ 2062 int GTY ((tag ("1"))) discriminator; 2063 } GTY ((desc ("%0.u.base.u2sel"))) u2; 2064}; 2065 2066/* Additional DECL_LANG_SPECIFIC information for functions. */ 2067 2068struct GTY(()) lang_decl_fn { 2069 struct lang_decl_min min; 2070 2071 /* In an overloaded operator, this is the value of 2072 DECL_OVERLOADED_OPERATOR_P. */ 2073 ENUM_BITFIELD (tree_code) operator_code : 16; 2074 2075 unsigned global_ctor_p : 1; 2076 unsigned global_dtor_p : 1; 2077 unsigned assignment_operator_p : 1; 2078 unsigned static_function : 1; 2079 unsigned pure_virtual : 1; 2080 unsigned defaulted_p : 1; 2081 2082 unsigned has_in_charge_parm_p : 1; 2083 unsigned has_vtt_parm_p : 1; 2084 unsigned pending_inline_p : 1; 2085 unsigned nonconverting : 1; 2086 unsigned thunk_p : 1; 2087 unsigned this_thunk_p : 1; 2088 unsigned hidden_friend_p : 1; 2089 unsigned omp_declare_reduction_p : 1; 2090 /* 2 spare bits on 32-bit hosts, 34 on 64-bit hosts. */ 2091 2092 /* For a non-thunk function decl, this is a tree list of 2093 friendly classes. For a thunk function decl, it is the 2094 thunked to function decl. */ 2095 tree befriending_classes; 2096 2097 /* For a non-virtual FUNCTION_DECL, this is 2098 DECL_FRIEND_CONTEXT. For a virtual FUNCTION_DECL for which 2099 DECL_THIS_THUNK_P does not hold, this is DECL_THUNKS. Both 2100 this pointer and result pointer adjusting thunks are 2101 chained here. This pointer thunks to return pointer thunks 2102 will be chained on the return pointer thunk. */ 2103 tree context; 2104 2105 union lang_decl_u5 2106 { 2107 /* In a non-thunk FUNCTION_DECL or TEMPLATE_DECL, this is 2108 DECL_CLONED_FUNCTION. */ 2109 tree GTY ((tag ("0"))) cloned_function; 2110 2111 /* In a FUNCTION_DECL for which THUNK_P holds this is the 2112 THUNK_FIXED_OFFSET. */ 2113 HOST_WIDE_INT GTY ((tag ("1"))) fixed_offset; 2114 } GTY ((desc ("%1.thunk_p"))) u5; 2115 2116 union lang_decl_u3 2117 { 2118 struct cp_token_cache * GTY ((tag ("1"))) pending_inline_info; 2119 struct language_function * GTY ((tag ("0"))) 2120 saved_language_function; 2121 } GTY ((desc ("%1.pending_inline_p"))) u; 2122 2123}; 2124 2125/* DECL_LANG_SPECIFIC for namespaces. */ 2126 2127struct GTY(()) lang_decl_ns { 2128 struct lang_decl_base base; 2129 cp_binding_level *level; 2130 tree ns_using; 2131 tree ns_users; 2132}; 2133 2134/* DECL_LANG_SPECIFIC for parameters. */ 2135 2136struct GTY(()) lang_decl_parm { 2137 struct lang_decl_base base; 2138 int level; 2139 int index; 2140}; 2141 2142/* DECL_LANG_SPECIFIC for all types. It would be nice to just make this a 2143 union rather than a struct containing a union as its only field, but 2144 tree.h declares it as a struct. */ 2145 2146struct GTY(()) lang_decl { 2147 union GTY((desc ("%h.base.selector"))) lang_decl_u { 2148 struct lang_decl_base GTY ((default)) base; 2149 struct lang_decl_min GTY((tag ("0"))) min; 2150 struct lang_decl_fn GTY ((tag ("1"))) fn; 2151 struct lang_decl_ns GTY((tag ("2"))) ns; 2152 struct lang_decl_parm GTY((tag ("3"))) parm; 2153 } u; 2154}; 2155 2156/* Looks through a template (if present) to find what it declares. */ 2157#define STRIP_TEMPLATE(NODE) \ 2158 (TREE_CODE (NODE) == TEMPLATE_DECL ? DECL_TEMPLATE_RESULT (NODE) : NODE) 2159 2160#if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007) 2161 2162#define LANG_DECL_MIN_CHECK(NODE) __extension__ \ 2163({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 2164 if (!LANG_DECL_HAS_MIN (NODE)) \ 2165 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 2166 <->u.min; }) 2167 2168/* We want to be able to check DECL_CONSTRUCTOR_P and such on a function 2169 template, not just on a FUNCTION_DECL. So when looking for things in 2170 lang_decl_fn, look down through a TEMPLATE_DECL into its result. */ 2171#define LANG_DECL_FN_CHECK(NODE) __extension__ \ 2172({ struct lang_decl *lt = DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE)); \ 2173 if (!DECL_DECLARES_FUNCTION_P (NODE) || lt->u.base.selector != 1) \ 2174 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 2175 <->u.fn; }) 2176 2177#define LANG_DECL_NS_CHECK(NODE) __extension__ \ 2178({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 2179 if (TREE_CODE (NODE) != NAMESPACE_DECL || lt->u.base.selector != 2) \ 2180 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 2181 <->u.ns; }) 2182 2183#define LANG_DECL_PARM_CHECK(NODE) __extension__ \ 2184({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 2185 if (TREE_CODE (NODE) != PARM_DECL) \ 2186 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 2187 <->u.parm; }) 2188 2189#define LANG_DECL_U2_CHECK(NODE, TF) __extension__ \ 2190({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 2191 if (!LANG_DECL_HAS_MIN (NODE) || lt->u.base.u2sel != TF) \ 2192 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 2193 <->u.min.u2; }) 2194 2195#else 2196 2197#define LANG_DECL_MIN_CHECK(NODE) \ 2198 (&DECL_LANG_SPECIFIC (NODE)->u.min) 2199 2200#define LANG_DECL_FN_CHECK(NODE) \ 2201 (&DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE))->u.fn) 2202 2203#define LANG_DECL_NS_CHECK(NODE) \ 2204 (&DECL_LANG_SPECIFIC (NODE)->u.ns) 2205 2206#define LANG_DECL_PARM_CHECK(NODE) \ 2207 (&DECL_LANG_SPECIFIC (NODE)->u.parm) 2208 2209#define LANG_DECL_U2_CHECK(NODE, TF) \ 2210 (&DECL_LANG_SPECIFIC (NODE)->u.min.u2) 2211 2212#endif /* ENABLE_TREE_CHECKING */ 2213 2214/* For a FUNCTION_DECL or a VAR_DECL, the language linkage for the 2215 declaration. Some entities (like a member function in a local 2216 class, or a local variable) do not have linkage at all, and this 2217 macro should not be used in those cases. 2218 2219 Implementation note: A FUNCTION_DECL without DECL_LANG_SPECIFIC was 2220 created by language-independent code, and has C linkage. Most 2221 VAR_DECLs have C++ linkage, and do not have DECL_LANG_SPECIFIC, but 2222 we do create DECL_LANG_SPECIFIC for variables with non-C++ linkage. */ 2223#define DECL_LANGUAGE(NODE) \ 2224 (DECL_LANG_SPECIFIC (NODE) \ 2225 ? DECL_LANG_SPECIFIC (NODE)->u.base.language \ 2226 : (TREE_CODE (NODE) == FUNCTION_DECL \ 2227 ? lang_c : lang_cplusplus)) 2228 2229/* Set the language linkage for NODE to LANGUAGE. */ 2230#define SET_DECL_LANGUAGE(NODE, LANGUAGE) \ 2231 (DECL_LANG_SPECIFIC (NODE)->u.base.language = (LANGUAGE)) 2232 2233/* For FUNCTION_DECLs and TEMPLATE_DECLs: nonzero means that this function 2234 is a constructor. */ 2235#define DECL_CONSTRUCTOR_P(NODE) \ 2236 DECL_CXX_CONSTRUCTOR_P (STRIP_TEMPLATE (NODE)) 2237 2238/* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a complete 2239 object. */ 2240#define DECL_COMPLETE_CONSTRUCTOR_P(NODE) \ 2241 (DECL_CONSTRUCTOR_P (NODE) \ 2242 && DECL_NAME (NODE) == complete_ctor_identifier) 2243 2244/* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a base 2245 object. */ 2246#define DECL_BASE_CONSTRUCTOR_P(NODE) \ 2247 (DECL_CONSTRUCTOR_P (NODE) \ 2248 && DECL_NAME (NODE) == base_ctor_identifier) 2249 2250/* Nonzero if NODE (a FUNCTION_DECL) is a constructor, but not either the 2251 specialized in-charge constructor or the specialized not-in-charge 2252 constructor. */ 2253#define DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P(NODE) \ 2254 (DECL_DECLARES_FUNCTION_P (NODE) && DECL_CONSTRUCTOR_P (NODE) \ 2255 && !DECL_CLONED_FUNCTION_P (NODE)) 2256 2257/* Nonzero if NODE (a FUNCTION_DECL) is a copy constructor. */ 2258#define DECL_COPY_CONSTRUCTOR_P(NODE) \ 2259 (DECL_CONSTRUCTOR_P (NODE) && copy_fn_p (NODE) > 0) 2260 2261/* Nonzero if NODE (a FUNCTION_DECL) is a move constructor. */ 2262#define DECL_MOVE_CONSTRUCTOR_P(NODE) \ 2263 (DECL_CONSTRUCTOR_P (NODE) && move_fn_p (NODE)) 2264 2265/* Nonzero if NODE (a FUNCTION_DECL or TEMPLATE_DECL) 2266 is a destructor. */ 2267#define DECL_DESTRUCTOR_P(NODE) \ 2268 DECL_CXX_DESTRUCTOR_P (STRIP_TEMPLATE (NODE)) 2269 2270/* Nonzero if NODE (a FUNCTION_DECL) is a destructor, but not the 2271 specialized in-charge constructor, in-charge deleting constructor, 2272 or the base destructor. */ 2273#define DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P(NODE) \ 2274 (DECL_DECLARES_FUNCTION_P (NODE) && DECL_DESTRUCTOR_P (NODE) \ 2275 && !DECL_CLONED_FUNCTION_P (NODE)) 2276 2277/* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete 2278 object. */ 2279#define DECL_COMPLETE_DESTRUCTOR_P(NODE) \ 2280 (DECL_DESTRUCTOR_P (NODE) \ 2281 && DECL_NAME (NODE) == complete_dtor_identifier) 2282 2283/* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a base 2284 object. */ 2285#define DECL_BASE_DESTRUCTOR_P(NODE) \ 2286 (DECL_DESTRUCTOR_P (NODE) \ 2287 && DECL_NAME (NODE) == base_dtor_identifier) 2288 2289/* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete 2290 object that deletes the object after it has been destroyed. */ 2291#define DECL_DELETING_DESTRUCTOR_P(NODE) \ 2292 (DECL_DESTRUCTOR_P (NODE) \ 2293 && DECL_NAME (NODE) == deleting_dtor_identifier) 2294 2295/* Nonzero if NODE (a FUNCTION_DECL) is a cloned constructor or 2296 destructor. */ 2297#define DECL_CLONED_FUNCTION_P(NODE) (!!decl_cloned_function_p (NODE, true)) 2298 2299/* If DECL_CLONED_FUNCTION_P holds, this is the function that was 2300 cloned. */ 2301#define DECL_CLONED_FUNCTION(NODE) (*decl_cloned_function_p (NODE, false)) 2302 2303/* Perform an action for each clone of FN, if FN is a function with 2304 clones. This macro should be used like: 2305 2306 FOR_EACH_CLONE (clone, fn) 2307 { ... } 2308 2309 */ 2310#define FOR_EACH_CLONE(CLONE, FN) \ 2311 if (TREE_CODE (FN) == FUNCTION_DECL \ 2312 && (DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (FN) \ 2313 || DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (FN))) \ 2314 for (CLONE = DECL_CHAIN (FN); \ 2315 CLONE && DECL_CLONED_FUNCTION_P (CLONE); \ 2316 CLONE = DECL_CHAIN (CLONE)) 2317 2318/* Nonzero if NODE has DECL_DISCRIMINATOR and not DECL_ACCESS. */ 2319#define DECL_DISCRIMINATOR_P(NODE) \ 2320 (VAR_P (NODE) && DECL_FUNCTION_SCOPE_P (NODE)) 2321 2322/* Discriminator for name mangling. */ 2323#define DECL_DISCRIMINATOR(NODE) (LANG_DECL_U2_CHECK (NODE, 1)->discriminator) 2324 2325/* True iff DECL_DISCRIMINATOR is set for a DECL_DISCRIMINATOR_P decl. */ 2326#define DECL_DISCRIMINATOR_SET_P(NODE) \ 2327 (DECL_LANG_SPECIFIC (NODE) && DECL_LANG_SPECIFIC (NODE)->u.base.u2sel == 1) 2328 2329/* The index of a user-declared parameter in its function, starting at 1. 2330 All artificial parameters will have index 0. */ 2331#define DECL_PARM_INDEX(NODE) \ 2332 (LANG_DECL_PARM_CHECK (NODE)->index) 2333 2334/* The level of a user-declared parameter in its function, starting at 1. 2335 A parameter of the function will have level 1; a parameter of the first 2336 nested function declarator (i.e. t in void f (void (*p)(T t))) will have 2337 level 2. */ 2338#define DECL_PARM_LEVEL(NODE) \ 2339 (LANG_DECL_PARM_CHECK (NODE)->level) 2340 2341/* Nonzero if the VTT parm has been added to NODE. */ 2342#define DECL_HAS_VTT_PARM_P(NODE) \ 2343 (LANG_DECL_FN_CHECK (NODE)->has_vtt_parm_p) 2344 2345/* Nonzero if NODE is a FUNCTION_DECL for which a VTT parameter is 2346 required. */ 2347#define DECL_NEEDS_VTT_PARM_P(NODE) \ 2348 (CLASSTYPE_VBASECLASSES (DECL_CONTEXT (NODE)) \ 2349 && (DECL_BASE_CONSTRUCTOR_P (NODE) \ 2350 || DECL_BASE_DESTRUCTOR_P (NODE))) 2351 2352/* Nonzero if NODE is a user-defined conversion operator. */ 2353#define DECL_CONV_FN_P(NODE) \ 2354 (DECL_NAME (NODE) && IDENTIFIER_TYPENAME_P (DECL_NAME (NODE))) 2355 2356/* If FN is a conversion operator, the type to which it converts. 2357 Otherwise, NULL_TREE. */ 2358#define DECL_CONV_FN_TYPE(FN) \ 2359 (DECL_CONV_FN_P (FN) ? TREE_TYPE (DECL_NAME (FN)) : NULL_TREE) 2360 2361/* Nonzero if NODE, which is a TEMPLATE_DECL, is a template 2362 conversion operator to a type dependent on the innermost template 2363 args. */ 2364#define DECL_TEMPLATE_CONV_FN_P(NODE) \ 2365 (DECL_LANG_SPECIFIC (TEMPLATE_DECL_CHECK (NODE))->u.base.template_conv_p) 2366 2367/* Nonzero if NODE, a static data member, was declared in its class as an 2368 array of unknown bound. */ 2369#define VAR_HAD_UNKNOWN_BOUND(NODE) \ 2370 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE)) \ 2371 ? DECL_LANG_SPECIFIC (NODE)->u.base.template_conv_p \ 2372 : false) 2373#define SET_VAR_HAD_UNKNOWN_BOUND(NODE) \ 2374 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))->u.base.template_conv_p = true) 2375 2376/* Set the overloaded operator code for NODE to CODE. */ 2377#define SET_OVERLOADED_OPERATOR_CODE(NODE, CODE) \ 2378 (LANG_DECL_FN_CHECK (NODE)->operator_code = (CODE)) 2379 2380/* If NODE is an overloaded operator, then this returns the TREE_CODE 2381 associated with the overloaded operator. 2382 DECL_ASSIGNMENT_OPERATOR_P must also be checked to determine 2383 whether or not NODE is an assignment operator. If NODE is not an 2384 overloaded operator, ERROR_MARK is returned. Since the numerical 2385 value of ERROR_MARK is zero, this macro can be used as a predicate 2386 to test whether or not NODE is an overloaded operator. */ 2387#define DECL_OVERLOADED_OPERATOR_P(NODE) \ 2388 (IDENTIFIER_OPNAME_P (DECL_NAME (NODE)) \ 2389 ? LANG_DECL_FN_CHECK (NODE)->operator_code : ERROR_MARK) 2390 2391/* Nonzero if NODE is an assignment operator (including += and such). */ 2392#define DECL_ASSIGNMENT_OPERATOR_P(NODE) \ 2393 (LANG_DECL_FN_CHECK (NODE)->assignment_operator_p) 2394 2395/* For FUNCTION_DECLs: nonzero means that this function is a 2396 constructor or a destructor with an extra in-charge parameter to 2397 control whether or not virtual bases are constructed. */ 2398#define DECL_HAS_IN_CHARGE_PARM_P(NODE) \ 2399 (LANG_DECL_FN_CHECK (NODE)->has_in_charge_parm_p) 2400 2401/* Nonzero if DECL is a declaration of __builtin_constant_p. */ 2402#define DECL_IS_BUILTIN_CONSTANT_P(NODE) \ 2403 (TREE_CODE (NODE) == FUNCTION_DECL \ 2404 && DECL_BUILT_IN_CLASS (NODE) == BUILT_IN_NORMAL \ 2405 && DECL_FUNCTION_CODE (NODE) == BUILT_IN_CONSTANT_P) 2406 2407/* Nonzero for _DECL means that this decl appears in (or will appear 2408 in) as a member in a RECORD_TYPE or UNION_TYPE node. It is also for 2409 detecting circularity in case members are multiply defined. In the 2410 case of a VAR_DECL, it is also used to determine how program storage 2411 should be allocated. */ 2412#define DECL_IN_AGGR_P(NODE) (DECL_LANG_FLAG_3 (NODE)) 2413 2414/* Nonzero for a VAR_DECL means that the variable's initialization (if 2415 any) has been processed. (In general, DECL_INITIALIZED_P is 2416 !DECL_EXTERNAL, but static data members may be initialized even if 2417 not defined.) */ 2418#define DECL_INITIALIZED_P(NODE) \ 2419 (TREE_LANG_FLAG_1 (VAR_DECL_CHECK (NODE))) 2420 2421/* Nonzero for a VAR_DECL iff an explicit initializer was provided 2422 or a non-trivial constructor is called. */ 2423#define DECL_NONTRIVIALLY_INITIALIZED_P(NODE) \ 2424 (TREE_LANG_FLAG_3 (VAR_DECL_CHECK (NODE))) 2425 2426/* Nonzero for a VAR_DECL that was initialized with a 2427 constant-expression. */ 2428#define DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P(NODE) \ 2429 (TREE_LANG_FLAG_2 (VAR_DECL_CHECK (NODE))) 2430 2431/* Nonzero if the DECL was initialized in the class definition itself, 2432 rather than outside the class. This is used for both static member 2433 VAR_DECLS, and FUNCTION_DECLS that are defined in the class. */ 2434#define DECL_INITIALIZED_IN_CLASS_P(DECL) \ 2435 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \ 2436 ->u.base.initialized_in_class) 2437 2438/* Nonzero if the DECL is used in the sense of 3.2 [basic.def.odr]. 2439 Only available for decls with DECL_LANG_SPECIFIC. */ 2440#define DECL_ODR_USED(DECL) \ 2441 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \ 2442 ->u.base.odr_used) 2443 2444/* Nonzero for DECL means that this decl is just a friend declaration, 2445 and should not be added to the list of members for this class. */ 2446#define DECL_FRIEND_P(NODE) \ 2447 (DECL_LANG_SPECIFIC (TYPE_FUNCTION_OR_TEMPLATE_DECL_CHECK (NODE)) \ 2448 ->u.base.friend_attr) 2449 2450/* A TREE_LIST of the types which have befriended this FUNCTION_DECL. */ 2451#define DECL_BEFRIENDING_CLASSES(NODE) \ 2452 (LANG_DECL_FN_CHECK (NODE)->befriending_classes) 2453 2454/* Nonzero for FUNCTION_DECL means that this decl is a static 2455 member function. */ 2456#define DECL_STATIC_FUNCTION_P(NODE) \ 2457 (LANG_DECL_FN_CHECK (NODE)->static_function) 2458 2459/* Nonzero for FUNCTION_DECL means that this decl is a non-static 2460 member function. */ 2461#define DECL_NONSTATIC_MEMBER_FUNCTION_P(NODE) \ 2462 (TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE) 2463 2464/* Nonzero for FUNCTION_DECL means that this decl is a member function 2465 (static or non-static). */ 2466#define DECL_FUNCTION_MEMBER_P(NODE) \ 2467 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) || DECL_STATIC_FUNCTION_P (NODE)) 2468 2469/* Nonzero for FUNCTION_DECL means that this member function 2470 has `this' as const X *const. */ 2471#define DECL_CONST_MEMFUNC_P(NODE) \ 2472 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \ 2473 && CP_TYPE_CONST_P (TREE_TYPE (TREE_VALUE \ 2474 (TYPE_ARG_TYPES (TREE_TYPE (NODE)))))) 2475 2476/* Nonzero for FUNCTION_DECL means that this member function 2477 has `this' as volatile X *const. */ 2478#define DECL_VOLATILE_MEMFUNC_P(NODE) \ 2479 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \ 2480 && CP_TYPE_VOLATILE_P (TREE_TYPE (TREE_VALUE \ 2481 (TYPE_ARG_TYPES (TREE_TYPE (NODE)))))) 2482 2483/* Nonzero for a DECL means that this member is a non-static member. */ 2484#define DECL_NONSTATIC_MEMBER_P(NODE) \ 2485 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \ 2486 || TREE_CODE (NODE) == FIELD_DECL) 2487 2488/* Nonzero for _DECL means that this member object type 2489 is mutable. */ 2490#define DECL_MUTABLE_P(NODE) (DECL_LANG_FLAG_0 (NODE)) 2491 2492/* Nonzero for _DECL means that this constructor or conversion function is 2493 non-converting. */ 2494#define DECL_NONCONVERTING_P(NODE) \ 2495 (LANG_DECL_FN_CHECK (NODE)->nonconverting) 2496 2497/* Nonzero for FUNCTION_DECL means that this member function is a pure 2498 virtual function. */ 2499#define DECL_PURE_VIRTUAL_P(NODE) \ 2500 (LANG_DECL_FN_CHECK (NODE)->pure_virtual) 2501 2502/* True (in a FUNCTION_DECL) if NODE is a virtual function that is an 2503 invalid overrider for a function from a base class. Once we have 2504 complained about an invalid overrider we avoid complaining about it 2505 again. */ 2506#define DECL_INVALID_OVERRIDER_P(NODE) \ 2507 (DECL_LANG_FLAG_4 (NODE)) 2508 2509/* True (in a FUNCTION_DECL) if NODE is a function declared with 2510 an override virt-specifier */ 2511#define DECL_OVERRIDE_P(NODE) (TREE_LANG_FLAG_0 (NODE)) 2512 2513/* The thunks associated with NODE, a FUNCTION_DECL. */ 2514#define DECL_THUNKS(NODE) \ 2515 (DECL_VIRTUAL_P (NODE) ? LANG_DECL_FN_CHECK (NODE)->context : NULL_TREE) 2516 2517/* Set DECL_THUNKS. */ 2518#define SET_DECL_THUNKS(NODE,THUNKS) \ 2519 (LANG_DECL_FN_CHECK (NODE)->context = (THUNKS)) 2520 2521/* If NODE, a FUNCTION_DECL, is a C++11 inheriting constructor, then this 2522 is the base it inherits from. */ 2523#define DECL_INHERITED_CTOR_BASE(NODE) \ 2524 (DECL_CONSTRUCTOR_P (NODE) ? LANG_DECL_FN_CHECK (NODE)->context : NULL_TREE) 2525 2526/* Set the inherited base. */ 2527#define SET_DECL_INHERITED_CTOR_BASE(NODE,INH) \ 2528 (LANG_DECL_FN_CHECK (NODE)->context = (INH)) 2529 2530/* Nonzero if NODE is a thunk, rather than an ordinary function. */ 2531#define DECL_THUNK_P(NODE) \ 2532 (TREE_CODE (NODE) == FUNCTION_DECL \ 2533 && DECL_LANG_SPECIFIC (NODE) \ 2534 && LANG_DECL_FN_CHECK (NODE)->thunk_p) 2535 2536/* Set DECL_THUNK_P for node. */ 2537#define SET_DECL_THUNK_P(NODE, THIS_ADJUSTING) \ 2538 (LANG_DECL_FN_CHECK (NODE)->thunk_p = 1, \ 2539 LANG_DECL_FN_CHECK (NODE)->this_thunk_p = (THIS_ADJUSTING)) 2540 2541/* Nonzero if NODE is a this pointer adjusting thunk. */ 2542#define DECL_THIS_THUNK_P(NODE) \ 2543 (DECL_THUNK_P (NODE) && LANG_DECL_FN_CHECK (NODE)->this_thunk_p) 2544 2545/* Nonzero if NODE is a result pointer adjusting thunk. */ 2546#define DECL_RESULT_THUNK_P(NODE) \ 2547 (DECL_THUNK_P (NODE) && !LANG_DECL_FN_CHECK (NODE)->this_thunk_p) 2548 2549/* Nonzero if NODE is a FUNCTION_DECL, but not a thunk. */ 2550#define DECL_NON_THUNK_FUNCTION_P(NODE) \ 2551 (TREE_CODE (NODE) == FUNCTION_DECL && !DECL_THUNK_P (NODE)) 2552 2553/* Nonzero if NODE is `extern "C"'. */ 2554#define DECL_EXTERN_C_P(NODE) \ 2555 (DECL_LANGUAGE (NODE) == lang_c) 2556 2557/* Nonzero if NODE is an `extern "C"' function. */ 2558#define DECL_EXTERN_C_FUNCTION_P(NODE) \ 2559 (DECL_NON_THUNK_FUNCTION_P (NODE) && DECL_EXTERN_C_P (NODE)) 2560 2561/* True iff DECL is an entity with vague linkage whose definition is 2562 available in this translation unit. */ 2563#define DECL_REPO_AVAILABLE_P(NODE) \ 2564 (DECL_LANG_SPECIFIC (NODE)->u.base.repo_available_p) 2565 2566/* True if DECL is declared 'constexpr'. */ 2567#define DECL_DECLARED_CONSTEXPR_P(DECL) \ 2568 DECL_LANG_FLAG_8 (VAR_OR_FUNCTION_DECL_CHECK (STRIP_TEMPLATE (DECL))) 2569 2570/* Nonzero if this DECL is the __PRETTY_FUNCTION__ variable in a 2571 template function. */ 2572#define DECL_PRETTY_FUNCTION_P(NODE) \ 2573 (DECL_NAME (NODE) \ 2574 && !strcmp (IDENTIFIER_POINTER (DECL_NAME (NODE)), "__PRETTY_FUNCTION__")) 2575 2576/* Nonzero if the thread-local variable was declared with __thread 2577 as opposed to thread_local. */ 2578#define DECL_GNU_TLS_P(NODE) \ 2579 (TREE_LANG_FLAG_0 (VAR_DECL_CHECK (NODE))) 2580 2581/* The _TYPE context in which this _DECL appears. This field holds the 2582 class where a virtual function instance is actually defined. */ 2583#define DECL_CLASS_CONTEXT(NODE) \ 2584 (DECL_CLASS_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : NULL_TREE) 2585 2586/* For a non-member friend function, the class (if any) in which this 2587 friend was defined. For example, given: 2588 2589 struct S { friend void f (); }; 2590 2591 the DECL_FRIEND_CONTEXT for `f' will be `S'. */ 2592#define DECL_FRIEND_CONTEXT(NODE) \ 2593 ((DECL_DECLARES_FUNCTION_P (NODE) \ 2594 && DECL_FRIEND_P (NODE) && !DECL_FUNCTION_MEMBER_P (NODE)) \ 2595 ? LANG_DECL_FN_CHECK (NODE)->context \ 2596 : NULL_TREE) 2597 2598/* Set the DECL_FRIEND_CONTEXT for NODE to CONTEXT. */ 2599#define SET_DECL_FRIEND_CONTEXT(NODE, CONTEXT) \ 2600 (LANG_DECL_FN_CHECK (NODE)->context = (CONTEXT)) 2601 2602#define CP_DECL_CONTEXT(NODE) \ 2603 (!DECL_FILE_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : global_namespace) 2604#define CP_TYPE_CONTEXT(NODE) \ 2605 (!TYPE_FILE_SCOPE_P (NODE) ? TYPE_CONTEXT (NODE) : global_namespace) 2606#define FROB_CONTEXT(NODE) \ 2607 ((NODE) == global_namespace ? DECL_CONTEXT (NODE) : (NODE)) 2608 2609/* 1 iff NODE has namespace scope, including the global namespace. */ 2610#define DECL_NAMESPACE_SCOPE_P(NODE) \ 2611 (!DECL_TEMPLATE_PARM_P (NODE) \ 2612 && TREE_CODE (CP_DECL_CONTEXT (NODE)) == NAMESPACE_DECL) 2613 2614#define TYPE_NAMESPACE_SCOPE_P(NODE) \ 2615 (TREE_CODE (CP_TYPE_CONTEXT (NODE)) == NAMESPACE_DECL) 2616 2617#define NAMESPACE_SCOPE_P(NODE) \ 2618 ((DECL_P (NODE) && DECL_NAMESPACE_SCOPE_P (NODE)) \ 2619 || (TYPE_P (NODE) && TYPE_NAMESPACE_SCOPE_P (NODE))) 2620 2621/* 1 iff NODE is a class member. */ 2622#define DECL_CLASS_SCOPE_P(NODE) \ 2623 (DECL_CONTEXT (NODE) && TYPE_P (DECL_CONTEXT (NODE))) 2624 2625#define TYPE_CLASS_SCOPE_P(NODE) \ 2626 (TYPE_CONTEXT (NODE) && TYPE_P (TYPE_CONTEXT (NODE))) 2627 2628/* 1 iff NODE is function-local. */ 2629#define DECL_FUNCTION_SCOPE_P(NODE) \ 2630 (DECL_CONTEXT (NODE) \ 2631 && TREE_CODE (DECL_CONTEXT (NODE)) == FUNCTION_DECL) 2632 2633#define TYPE_FUNCTION_SCOPE_P(NODE) \ 2634 (TYPE_CONTEXT (NODE) && TREE_CODE (TYPE_CONTEXT (NODE)) == FUNCTION_DECL) 2635 2636/* 1 iff VAR_DECL node NODE is a type-info decl. This flag is set for 2637 both the primary typeinfo object and the associated NTBS name. */ 2638#define DECL_TINFO_P(NODE) TREE_LANG_FLAG_4 (VAR_DECL_CHECK (NODE)) 2639 2640/* 1 iff VAR_DECL node NODE is virtual table or VTT. */ 2641#define DECL_VTABLE_OR_VTT_P(NODE) TREE_LANG_FLAG_5 (VAR_DECL_CHECK (NODE)) 2642 2643/* 1 iff FUNCTION_TYPE or METHOD_TYPE has a ref-qualifier (either & or &&). */ 2644#define FUNCTION_REF_QUALIFIED(NODE) \ 2645 TREE_LANG_FLAG_4 (FUNC_OR_METHOD_CHECK (NODE)) 2646 2647/* 1 iff FUNCTION_TYPE or METHOD_TYPE has &&-ref-qualifier. */ 2648#define FUNCTION_RVALUE_QUALIFIED(NODE) \ 2649 TREE_LANG_FLAG_5 (FUNC_OR_METHOD_CHECK (NODE)) 2650 2651/* Returns 1 iff VAR_DECL is a construction virtual table. 2652 DECL_VTABLE_OR_VTT_P will be true in this case and must be checked 2653 before using this macro. */ 2654#define DECL_CONSTRUCTION_VTABLE_P(NODE) \ 2655 TREE_LANG_FLAG_6 (VAR_DECL_CHECK (NODE)) 2656 2657/* 1 iff NODE is function-local, but for types. */ 2658#define LOCAL_CLASS_P(NODE) \ 2659 (decl_function_context (TYPE_MAIN_DECL (NODE)) != NULL_TREE) 2660 2661/* For a NAMESPACE_DECL: the list of using namespace directives 2662 The PURPOSE is the used namespace, the value is the namespace 2663 that is the common ancestor. */ 2664#define DECL_NAMESPACE_USING(NODE) (LANG_DECL_NS_CHECK (NODE)->ns_using) 2665 2666/* In a NAMESPACE_DECL, the DECL_INITIAL is used to record all users 2667 of a namespace, to record the transitive closure of using namespace. */ 2668#define DECL_NAMESPACE_USERS(NODE) (LANG_DECL_NS_CHECK (NODE)->ns_users) 2669 2670/* In a NAMESPACE_DECL, the list of namespaces which have associated 2671 themselves with this one. */ 2672#define DECL_NAMESPACE_ASSOCIATIONS(NODE) \ 2673 DECL_INITIAL (NAMESPACE_DECL_CHECK (NODE)) 2674 2675/* In a NAMESPACE_DECL, points to the original namespace if this is 2676 a namespace alias. */ 2677#define DECL_NAMESPACE_ALIAS(NODE) \ 2678 DECL_ABSTRACT_ORIGIN (NAMESPACE_DECL_CHECK (NODE)) 2679#define ORIGINAL_NAMESPACE(NODE) \ 2680 (DECL_NAMESPACE_ALIAS (NODE) ? DECL_NAMESPACE_ALIAS (NODE) : (NODE)) 2681 2682/* Nonzero if NODE is the std namespace. */ 2683#define DECL_NAMESPACE_STD_P(NODE) \ 2684 (TREE_CODE (NODE) == NAMESPACE_DECL \ 2685 && CP_DECL_CONTEXT (NODE) == global_namespace \ 2686 && DECL_NAME (NODE) == std_identifier) 2687 2688/* In a TREE_LIST concatenating using directives, indicate indirect 2689 directives */ 2690#define TREE_INDIRECT_USING(NODE) TREE_LANG_FLAG_0 (TREE_LIST_CHECK (NODE)) 2691 2692/* In a TREE_LIST in an attribute list, indicates that the attribute 2693 must be applied at instantiation time. */ 2694#define ATTR_IS_DEPENDENT(NODE) TREE_LANG_FLAG_0 (TREE_LIST_CHECK (NODE)) 2695 2696/* In a TREE_LIST in the argument of attribute abi_tag, indicates that the tag 2697 was inherited from a template parameter, not explicitly indicated. */ 2698#define ABI_TAG_IMPLICIT(NODE) TREE_LANG_FLAG_0 (TREE_LIST_CHECK (NODE)) 2699 2700extern tree decl_shadowed_for_var_lookup (tree); 2701extern void decl_shadowed_for_var_insert (tree, tree); 2702 2703/* Non zero if this is a using decl for a dependent scope. */ 2704#define DECL_DEPENDENT_P(NODE) DECL_LANG_FLAG_0 (USING_DECL_CHECK (NODE)) 2705 2706/* The scope named in a using decl. */ 2707#define USING_DECL_SCOPE(NODE) TREE_TYPE (USING_DECL_CHECK (NODE)) 2708 2709/* The decls named by a using decl. */ 2710#define USING_DECL_DECLS(NODE) DECL_INITIAL (USING_DECL_CHECK (NODE)) 2711 2712/* Non zero if the using decl refers to a dependent type. */ 2713#define USING_DECL_TYPENAME_P(NODE) DECL_LANG_FLAG_1 (USING_DECL_CHECK (NODE)) 2714 2715/* In a VAR_DECL, true if we have a shadowed local variable 2716 in the shadowed var table for this VAR_DECL. */ 2717#define DECL_HAS_SHADOWED_FOR_VAR_P(NODE) \ 2718 (VAR_DECL_CHECK (NODE)->decl_with_vis.shadowed_for_var_p) 2719 2720/* In a VAR_DECL for a variable declared in a for statement, 2721 this is the shadowed (local) variable. */ 2722#define DECL_SHADOWED_FOR_VAR(NODE) \ 2723 (DECL_HAS_SHADOWED_FOR_VAR_P(NODE) ? decl_shadowed_for_var_lookup (NODE) : NULL) 2724 2725#define SET_DECL_SHADOWED_FOR_VAR(NODE, VAL) \ 2726 (decl_shadowed_for_var_insert (NODE, VAL)) 2727 2728/* In a FUNCTION_DECL, this is nonzero if this function was defined in 2729 the class definition. We have saved away the text of the function, 2730 but have not yet processed it. */ 2731#define DECL_PENDING_INLINE_P(NODE) \ 2732 (LANG_DECL_FN_CHECK (NODE)->pending_inline_p) 2733 2734/* If DECL_PENDING_INLINE_P holds, this is the saved text of the 2735 function. */ 2736#define DECL_PENDING_INLINE_INFO(NODE) \ 2737 (LANG_DECL_FN_CHECK (NODE)->u.pending_inline_info) 2738 2739/* Nonzero for TYPE_DECL means that it was written 'using name = type'. */ 2740#define TYPE_DECL_ALIAS_P(NODE) \ 2741 DECL_LANG_FLAG_6 (TYPE_DECL_CHECK (NODE)) 2742 2743/* Nonzero for TEMPLATE_DECL means that it is a 'complex' alias template. */ 2744#define TEMPLATE_DECL_COMPLEX_ALIAS_P(NODE) \ 2745 DECL_LANG_FLAG_2 (TEMPLATE_DECL_CHECK (NODE)) 2746 2747/* Nonzero for a type which is an alias for another type; i.e, a type 2748 which declaration was written 'using name-of-type = 2749 another-type'. */ 2750#define TYPE_ALIAS_P(NODE) \ 2751 (TYPE_P (NODE) \ 2752 && TYPE_NAME (NODE) \ 2753 && TREE_CODE (TYPE_NAME (NODE)) == TYPE_DECL \ 2754 && TYPE_DECL_ALIAS_P (TYPE_NAME (NODE))) 2755 2756/* For a class type: if this structure has many fields, we'll sort them 2757 and put them into a TREE_VEC. */ 2758#define CLASSTYPE_SORTED_FIELDS(NODE) \ 2759 (LANG_TYPE_CLASS_CHECK (NODE)->sorted_fields) 2760 2761/* If non-NULL for a VAR_DECL, FUNCTION_DECL, TYPE_DECL or 2762 TEMPLATE_DECL, the entity is either a template specialization (if 2763 DECL_USE_TEMPLATE is nonzero) or the abstract instance of the 2764 template itself. 2765 2766 In either case, DECL_TEMPLATE_INFO is a TREE_LIST, whose 2767 TREE_PURPOSE is the TEMPLATE_DECL of which this entity is a 2768 specialization or abstract instance. The TREE_VALUE is the 2769 template arguments used to specialize the template. 2770 2771 Consider: 2772 2773 template <typename T> struct S { friend void f(T) {} }; 2774 2775 In this case, S<int>::f is, from the point of view of the compiler, 2776 an instantiation of a template -- but, from the point of view of 2777 the language, each instantiation of S results in a wholly unrelated 2778 global function f. In this case, DECL_TEMPLATE_INFO for S<int>::f 2779 will be non-NULL, but DECL_USE_TEMPLATE will be zero. */ 2780#define DECL_TEMPLATE_INFO(NODE) \ 2781 (DECL_LANG_SPECIFIC (VAR_TEMPL_TYPE_FIELD_OR_FUNCTION_DECL_CHECK (NODE)) \ 2782 ->u.min.template_info) 2783 2784/* For a VAR_DECL, indicates that the variable is actually a 2785 non-static data member of anonymous union that has been promoted to 2786 variable status. */ 2787#define DECL_ANON_UNION_VAR_P(NODE) \ 2788 (DECL_LANG_FLAG_4 (VAR_DECL_CHECK (NODE))) 2789 2790/* Template information for a RECORD_TYPE or UNION_TYPE. */ 2791#define CLASSTYPE_TEMPLATE_INFO(NODE) \ 2792 (LANG_TYPE_CLASS_CHECK (RECORD_OR_UNION_CHECK (NODE))->template_info) 2793 2794/* Template information for an ENUMERAL_TYPE. Although an enumeration may 2795 not be a primary template, it may be declared within the scope of a 2796 primary template and the enumeration constants may depend on 2797 non-type template parameters. */ 2798#define ENUM_TEMPLATE_INFO(NODE) \ 2799 (TYPE_LANG_SLOT_1 (ENUMERAL_TYPE_CHECK (NODE))) 2800 2801/* Template information for a template template parameter. */ 2802#define TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO(NODE) \ 2803 (LANG_TYPE_CLASS_CHECK (BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK (NODE)) \ 2804 ->template_info) 2805 2806/* Template information for an ENUMERAL_, RECORD_, UNION_TYPE, or 2807 BOUND_TEMPLATE_TEMPLATE_PARM type. Note that if NODE is a 2808 specialization of an alias template, this accessor returns the 2809 template info for the alias template, not the one (if any) for the 2810 template of the underlying type. */ 2811#define TYPE_TEMPLATE_INFO(NODE) \ 2812 ((TYPE_ALIAS_P (NODE) && DECL_LANG_SPECIFIC (TYPE_NAME (NODE))) \ 2813 ? (DECL_LANG_SPECIFIC (TYPE_NAME (NODE)) \ 2814 ? DECL_TEMPLATE_INFO (TYPE_NAME (NODE)) \ 2815 : NULL_TREE) \ 2816 : ((TREE_CODE (NODE) == ENUMERAL_TYPE) \ 2817 ? ENUM_TEMPLATE_INFO (NODE) \ 2818 : ((TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM) \ 2819 ? TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO (NODE) \ 2820 : (CLASS_TYPE_P (NODE) \ 2821 ? CLASSTYPE_TEMPLATE_INFO (NODE) \ 2822 : NULL_TREE)))) 2823 2824 2825/* Set the template information for an ENUMERAL_, RECORD_, or 2826 UNION_TYPE to VAL. */ 2827#define SET_TYPE_TEMPLATE_INFO(NODE, VAL) \ 2828 (TREE_CODE (NODE) == ENUMERAL_TYPE \ 2829 ? (ENUM_TEMPLATE_INFO (NODE) = (VAL)) \ 2830 : ((CLASS_TYPE_P (NODE) && !TYPE_ALIAS_P (NODE)) \ 2831 ? (CLASSTYPE_TEMPLATE_INFO (NODE) = (VAL)) \ 2832 : (DECL_TEMPLATE_INFO (TYPE_NAME (NODE)) = (VAL)))) 2833 2834#define TI_TEMPLATE(NODE) TREE_TYPE (TEMPLATE_INFO_CHECK (NODE)) 2835#define TI_ARGS(NODE) TREE_CHAIN (TEMPLATE_INFO_CHECK (NODE)) 2836#define TI_PENDING_TEMPLATE_FLAG(NODE) TREE_LANG_FLAG_1 (NODE) 2837/* For a given TREE_VEC containing a template argument list, 2838 this property contains the number of arguments that are not 2839 defaulted. */ 2840#define NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) TREE_CHAIN (TREE_VEC_CHECK (NODE)) 2841/* Below are the setter and getter of the NON_DEFAULT_TEMPLATE_ARGS_COUNT 2842 property. */ 2843#define SET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE, INT_VALUE) \ 2844 NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) = build_int_cst (NULL_TREE, INT_VALUE) 2845#ifdef ENABLE_CHECKING 2846#define GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) \ 2847 int_cst_value (NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE)) 2848#else 2849#define GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) \ 2850 NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE) \ 2851 ? int_cst_value (NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE)) \ 2852 : TREE_VEC_LENGTH (INNERMOST_TEMPLATE_ARGS (NODE)) 2853#endif 2854/* The list of typedefs - used in the template - that need 2855 access checking at template instantiation time. 2856 2857 FIXME this should be associated with the TEMPLATE_DECL, not the 2858 TEMPLATE_INFO. */ 2859#define TI_TYPEDEFS_NEEDING_ACCESS_CHECKING(NODE) \ 2860 ((struct tree_template_info*)TEMPLATE_INFO_CHECK \ 2861 (NODE))->typedefs_needing_access_checking 2862 2863/* We use TREE_VECs to hold template arguments. If there is only one 2864 level of template arguments, then the TREE_VEC contains the 2865 arguments directly. If there is more than one level of template 2866 arguments, then each entry in the TREE_VEC is itself a TREE_VEC, 2867 containing the template arguments for a single level. The first 2868 entry in the outer TREE_VEC is the outermost level of template 2869 parameters; the last is the innermost. 2870 2871 It is incorrect to ever form a template argument vector containing 2872 only one level of arguments, but which is a TREE_VEC containing as 2873 its only entry the TREE_VEC for that level. 2874 2875 For each TREE_VEC containing the template arguments for a single 2876 level, it's possible to get or set the number of non defaulted 2877 template arguments by using the accessor macros 2878 GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT or 2879 SET_NON_DEFAULT_TEMPLATE_ARGS_COUNT. */ 2880 2881/* Nonzero if the template arguments is actually a vector of vectors, 2882 rather than just a vector. */ 2883#define TMPL_ARGS_HAVE_MULTIPLE_LEVELS(NODE) \ 2884 (NODE && TREE_VEC_LENGTH (NODE) && TREE_VEC_ELT (NODE, 0) \ 2885 && TREE_CODE (TREE_VEC_ELT (NODE, 0)) == TREE_VEC) 2886 2887/* The depth of a template argument vector. When called directly by 2888 the parser, we use a TREE_LIST rather than a TREE_VEC to represent 2889 template arguments. In fact, we may even see NULL_TREE if there 2890 are no template arguments. In both of those cases, there is only 2891 one level of template arguments. */ 2892#define TMPL_ARGS_DEPTH(NODE) \ 2893 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (NODE) ? TREE_VEC_LENGTH (NODE) : 1) 2894 2895/* The LEVELth level of the template ARGS. The outermost level of 2896 args is level 1, not level 0. */ 2897#define TMPL_ARGS_LEVEL(ARGS, LEVEL) \ 2898 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (ARGS) \ 2899 ? TREE_VEC_ELT (ARGS, (LEVEL) - 1) : (ARGS)) 2900 2901/* Set the LEVELth level of the template ARGS to VAL. This macro does 2902 not work with single-level argument vectors. */ 2903#define SET_TMPL_ARGS_LEVEL(ARGS, LEVEL, VAL) \ 2904 (TREE_VEC_ELT (ARGS, (LEVEL) - 1) = (VAL)) 2905 2906/* Accesses the IDXth parameter in the LEVELth level of the ARGS. */ 2907#define TMPL_ARG(ARGS, LEVEL, IDX) \ 2908 (TREE_VEC_ELT (TMPL_ARGS_LEVEL (ARGS, LEVEL), IDX)) 2909 2910/* Given a single level of template arguments in NODE, return the 2911 number of arguments. */ 2912#define NUM_TMPL_ARGS(NODE) \ 2913 (TREE_VEC_LENGTH (NODE)) 2914 2915/* Returns the innermost level of template arguments in ARGS. */ 2916#define INNERMOST_TEMPLATE_ARGS(NODE) \ 2917 (get_innermost_template_args ((NODE), 1)) 2918 2919/* The number of levels of template parameters given by NODE. */ 2920#define TMPL_PARMS_DEPTH(NODE) \ 2921 ((HOST_WIDE_INT) TREE_INT_CST_LOW (TREE_PURPOSE (NODE))) 2922 2923/* The TEMPLATE_DECL instantiated or specialized by NODE. This 2924 TEMPLATE_DECL will be the immediate parent, not the most general 2925 template. For example, in: 2926 2927 template <class T> struct S { template <class U> void f(U); } 2928 2929 the FUNCTION_DECL for S<int>::f<double> will have, as its 2930 DECL_TI_TEMPLATE, `template <class U> S<int>::f<U>'. 2931 2932 As a special case, for a member friend template of a template 2933 class, this value will not be a TEMPLATE_DECL, but rather an 2934 IDENTIFIER_NODE or OVERLOAD indicating the name of the template and 2935 any explicit template arguments provided. For example, in: 2936 2937 template <class T> struct S { friend void f<int>(int, double); } 2938 2939 the DECL_TI_TEMPLATE will be an IDENTIFIER_NODE for `f' and the 2940 DECL_TI_ARGS will be {int}. 2941 2942 For a FIELD_DECL with a non-static data member initializer, this value 2943 is the FIELD_DECL it was instantiated from. */ 2944#define DECL_TI_TEMPLATE(NODE) TI_TEMPLATE (DECL_TEMPLATE_INFO (NODE)) 2945 2946/* The template arguments used to obtain this decl from the most 2947 general form of DECL_TI_TEMPLATE. For the example given for 2948 DECL_TI_TEMPLATE, the DECL_TI_ARGS will be {int, double}. These 2949 are always the full set of arguments required to instantiate this 2950 declaration from the most general template specialized here. */ 2951#define DECL_TI_ARGS(NODE) TI_ARGS (DECL_TEMPLATE_INFO (NODE)) 2952 2953/* The TEMPLATE_DECL associated with NODE, a class type. Even if NODE 2954 will be generated from a partial specialization, the TEMPLATE_DECL 2955 referred to here will be the original template. For example, 2956 given: 2957 2958 template <typename T> struct S {}; 2959 template <typename T> struct S<T*> {}; 2960 2961 the CLASSTPYE_TI_TEMPLATE for S<int*> will be S, not the S<T*>. */ 2962#define CLASSTYPE_TI_TEMPLATE(NODE) TI_TEMPLATE (CLASSTYPE_TEMPLATE_INFO (NODE)) 2963#define CLASSTYPE_TI_ARGS(NODE) TI_ARGS (CLASSTYPE_TEMPLATE_INFO (NODE)) 2964 2965/* For a template instantiation TYPE, returns the TYPE corresponding 2966 to the primary template. Otherwise returns TYPE itself. */ 2967#define CLASSTYPE_PRIMARY_TEMPLATE_TYPE(TYPE) \ 2968 ((CLASSTYPE_USE_TEMPLATE ((TYPE)) \ 2969 && !CLASSTYPE_TEMPLATE_SPECIALIZATION ((TYPE))) \ 2970 ? TREE_TYPE (DECL_TEMPLATE_RESULT (DECL_PRIMARY_TEMPLATE \ 2971 (CLASSTYPE_TI_TEMPLATE ((TYPE))))) \ 2972 : (TYPE)) 2973 2974/* Like CLASS_TI_TEMPLATE, but also works for ENUMERAL_TYPEs. */ 2975#define TYPE_TI_TEMPLATE(NODE) \ 2976 (TI_TEMPLATE (TYPE_TEMPLATE_INFO (NODE))) 2977 2978/* Like DECL_TI_ARGS, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */ 2979#define TYPE_TI_ARGS(NODE) \ 2980 (TI_ARGS (TYPE_TEMPLATE_INFO (NODE))) 2981 2982#define INNERMOST_TEMPLATE_PARMS(NODE) TREE_VALUE (NODE) 2983 2984/* Nonzero if NODE (a TEMPLATE_DECL) is a member template, in the 2985 sense of [temp.mem]. */ 2986#define DECL_MEMBER_TEMPLATE_P(NODE) \ 2987 (DECL_LANG_FLAG_1 (TEMPLATE_DECL_CHECK (NODE))) 2988 2989/* Nonzero if the NODE corresponds to the template parameters for a 2990 member template, whose inline definition is being processed after 2991 the class definition is complete. */ 2992#define TEMPLATE_PARMS_FOR_INLINE(NODE) TREE_LANG_FLAG_1 (NODE) 2993 2994/* Determine if a declaration (PARM_DECL or FIELD_DECL) is a pack. */ 2995#define DECL_PACK_P(NODE) \ 2996 (DECL_P (NODE) && PACK_EXPANSION_P (TREE_TYPE (NODE))) 2997 2998/* Determines if NODE is an expansion of one or more parameter packs, 2999 e.g., a TYPE_PACK_EXPANSION or EXPR_PACK_EXPANSION. */ 3000#define PACK_EXPANSION_P(NODE) \ 3001 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION \ 3002 || TREE_CODE (NODE) == EXPR_PACK_EXPANSION) 3003 3004/* Extracts the type or expression pattern from a TYPE_PACK_EXPANSION or 3005 EXPR_PACK_EXPANSION. */ 3006#define PACK_EXPANSION_PATTERN(NODE) \ 3007 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION? TREE_TYPE (NODE) \ 3008 : TREE_OPERAND (NODE, 0)) 3009 3010/* Sets the type or expression pattern for a TYPE_PACK_EXPANSION or 3011 EXPR_PACK_EXPANSION. */ 3012#define SET_PACK_EXPANSION_PATTERN(NODE,VALUE) \ 3013 if (TREE_CODE (NODE) == TYPE_PACK_EXPANSION) \ 3014 TREE_TYPE (NODE) = VALUE; \ 3015 else \ 3016 TREE_OPERAND (NODE, 0) = VALUE 3017 3018/* The list of parameter packs used in the PACK_EXPANSION_* node. The 3019 TREE_VALUE of each TREE_LIST contains the parameter packs. */ 3020#define PACK_EXPANSION_PARAMETER_PACKS(NODE) \ 3021 *(TREE_CODE (NODE) == EXPR_PACK_EXPANSION \ 3022 ? &TREE_OPERAND (NODE, 1) \ 3023 : &TYPE_MINVAL (TYPE_PACK_EXPANSION_CHECK (NODE))) 3024 3025/* Any additional template args to be applied when substituting into 3026 the pattern, set by tsubst_pack_expansion for partial instantiations. */ 3027#define PACK_EXPANSION_EXTRA_ARGS(NODE) \ 3028 *(TREE_CODE (NODE) == TYPE_PACK_EXPANSION \ 3029 ? &TYPE_MAXVAL (NODE) \ 3030 : &TREE_OPERAND ((NODE), 2)) 3031 3032/* True iff this pack expansion is within a function context. */ 3033#define PACK_EXPANSION_LOCAL_P(NODE) TREE_LANG_FLAG_0 (NODE) 3034 3035/* True iff this pack expansion is for sizeof.... */ 3036#define PACK_EXPANSION_SIZEOF_P(NODE) TREE_LANG_FLAG_1 (NODE) 3037 3038/* Determine if this is an argument pack. */ 3039#define ARGUMENT_PACK_P(NODE) \ 3040 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK \ 3041 || TREE_CODE (NODE) == NONTYPE_ARGUMENT_PACK) 3042 3043/* The arguments stored in an argument pack. Arguments are stored in a 3044 TREE_VEC, which may have length zero. */ 3045#define ARGUMENT_PACK_ARGS(NODE) \ 3046 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK? TREE_TYPE (NODE) \ 3047 : TREE_OPERAND (NODE, 0)) 3048 3049/* Set the arguments stored in an argument pack. VALUE must be a 3050 TREE_VEC. */ 3051#define SET_ARGUMENT_PACK_ARGS(NODE,VALUE) \ 3052 if (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK) \ 3053 TREE_TYPE (NODE) = VALUE; \ 3054 else \ 3055 TREE_OPERAND (NODE, 0) = VALUE 3056 3057/* Whether the argument pack is "incomplete", meaning that more 3058 arguments can still be deduced. Incomplete argument packs are only 3059 used when the user has provided an explicit template argument list 3060 for a variadic function template. Some of the explicit template 3061 arguments will be placed into the beginning of the argument pack, 3062 but additional arguments might still be deduced. */ 3063#define ARGUMENT_PACK_INCOMPLETE_P(NODE) \ 3064 TREE_ADDRESSABLE (ARGUMENT_PACK_ARGS (NODE)) 3065 3066/* When ARGUMENT_PACK_INCOMPLETE_P, stores the explicit template 3067 arguments used to fill this pack. */ 3068#define ARGUMENT_PACK_EXPLICIT_ARGS(NODE) \ 3069 TREE_TYPE (ARGUMENT_PACK_ARGS (NODE)) 3070 3071/* In an ARGUMENT_PACK_SELECT, the argument pack from which an 3072 argument will be selected. */ 3073#define ARGUMENT_PACK_SELECT_FROM_PACK(NODE) \ 3074 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->argument_pack) 3075 3076/* In an ARGUMENT_PACK_SELECT, the index of the argument we want to 3077 select. */ 3078#define ARGUMENT_PACK_SELECT_INDEX(NODE) \ 3079 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->index) 3080 3081/* In an ARGUMENT_PACK_SELECT, the actual underlying argument that the 3082 ARGUMENT_PACK_SELECT represents. */ 3083#define ARGUMENT_PACK_SELECT_ARG(NODE) \ 3084 TREE_VEC_ELT (ARGUMENT_PACK_ARGS (ARGUMENT_PACK_SELECT_FROM_PACK (NODE)), \ 3085 ARGUMENT_PACK_SELECT_INDEX (NODE)); 3086 3087/* In a FUNCTION_DECL, the saved language-specific per-function data. */ 3088#define DECL_SAVED_FUNCTION_DATA(NODE) \ 3089 (LANG_DECL_FN_CHECK (FUNCTION_DECL_CHECK (NODE)) \ 3090 ->u.saved_language_function) 3091 3092/* True if NODE is an implicit INDIRECT_EXPR from convert_from_reference. */ 3093#define REFERENCE_REF_P(NODE) \ 3094 (INDIRECT_REF_P (NODE) \ 3095 && TREE_TYPE (TREE_OPERAND (NODE, 0)) \ 3096 && (TREE_CODE (TREE_TYPE (TREE_OPERAND ((NODE), 0))) \ 3097 == REFERENCE_TYPE)) 3098 3099/* True if NODE is a REFERENCE_TYPE which is OK to instantiate to be a 3100 reference to VLA type, because it's used for VLA capture. */ 3101#define REFERENCE_VLA_OK(NODE) \ 3102 (TYPE_LANG_FLAG_5 (REFERENCE_TYPE_CHECK (NODE))) 3103 3104#define NEW_EXPR_USE_GLOBAL(NODE) \ 3105 TREE_LANG_FLAG_0 (NEW_EXPR_CHECK (NODE)) 3106#define DELETE_EXPR_USE_GLOBAL(NODE) \ 3107 TREE_LANG_FLAG_0 (DELETE_EXPR_CHECK (NODE)) 3108#define DELETE_EXPR_USE_VEC(NODE) \ 3109 TREE_LANG_FLAG_1 (DELETE_EXPR_CHECK (NODE)) 3110 3111/* Indicates that this is a non-dependent COMPOUND_EXPR which will 3112 resolve to a function call. */ 3113#define COMPOUND_EXPR_OVERLOADED(NODE) \ 3114 TREE_LANG_FLAG_0 (COMPOUND_EXPR_CHECK (NODE)) 3115 3116/* In a CALL_EXPR appearing in a template, true if Koenig lookup 3117 should be performed at instantiation time. */ 3118#define KOENIG_LOOKUP_P(NODE) TREE_LANG_FLAG_0 (CALL_EXPR_CHECK (NODE)) 3119 3120/* True if CALL_EXPR expresses list-initialization of an object. */ 3121#define CALL_EXPR_LIST_INIT_P(NODE) \ 3122 TREE_LANG_FLAG_3 (TREE_CHECK2 ((NODE),CALL_EXPR,AGGR_INIT_EXPR)) 3123 3124/* Indicates whether a string literal has been parenthesized. Such 3125 usages are disallowed in certain circumstances. */ 3126 3127#define PAREN_STRING_LITERAL_P(NODE) \ 3128 TREE_LANG_FLAG_0 (STRING_CST_CHECK (NODE)) 3129 3130/* Indicates whether a COMPONENT_REF has been parenthesized, or an 3131 INDIRECT_REF comes from parenthesizing a VAR_DECL. Currently only set 3132 some of the time in C++14 mode. */ 3133 3134#define REF_PARENTHESIZED_P(NODE) \ 3135 TREE_LANG_FLAG_2 (TREE_CHECK2 ((NODE), COMPONENT_REF, INDIRECT_REF)) 3136 3137/* Nonzero if this AGGR_INIT_EXPR provides for initialization via a 3138 constructor call, rather than an ordinary function call. */ 3139#define AGGR_INIT_VIA_CTOR_P(NODE) \ 3140 TREE_LANG_FLAG_0 (AGGR_INIT_EXPR_CHECK (NODE)) 3141 3142/* Nonzero if expanding this AGGR_INIT_EXPR should first zero-initialize 3143 the object. */ 3144#define AGGR_INIT_ZERO_FIRST(NODE) \ 3145 TREE_LANG_FLAG_2 (AGGR_INIT_EXPR_CHECK (NODE)) 3146 3147/* AGGR_INIT_EXPR accessors. These are equivalent to the CALL_EXPR 3148 accessors, except for AGGR_INIT_EXPR_SLOT (which takes the place of 3149 CALL_EXPR_STATIC_CHAIN). */ 3150 3151#define AGGR_INIT_EXPR_FN(NODE) TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 1) 3152#define AGGR_INIT_EXPR_SLOT(NODE) \ 3153 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 2) 3154#define AGGR_INIT_EXPR_ARG(NODE, I) \ 3155 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), (I) + 3) 3156#define aggr_init_expr_nargs(NODE) (VL_EXP_OPERAND_LENGTH(NODE) - 3) 3157 3158/* AGGR_INIT_EXPR_ARGP returns a pointer to the argument vector for NODE. 3159 We can't use &AGGR_INIT_EXPR_ARG (NODE, 0) because that will complain if 3160 the argument count is zero when checking is enabled. Instead, do 3161 the pointer arithmetic to advance past the 3 fixed operands in a 3162 AGGR_INIT_EXPR. That produces a valid pointer to just past the end of 3163 the operand array, even if it's not valid to dereference it. */ 3164#define AGGR_INIT_EXPR_ARGP(NODE) \ 3165 (&(TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 0)) + 3) 3166 3167/* Abstract iterators for AGGR_INIT_EXPRs. */ 3168 3169/* Structure containing iterator state. */ 3170typedef struct aggr_init_expr_arg_iterator_d { 3171 tree t; /* the aggr_init_expr */ 3172 int n; /* argument count */ 3173 int i; /* next argument index */ 3174} aggr_init_expr_arg_iterator; 3175 3176/* Initialize the abstract argument list iterator object ITER with the 3177 arguments from AGGR_INIT_EXPR node EXP. */ 3178inline void 3179init_aggr_init_expr_arg_iterator (tree exp, 3180 aggr_init_expr_arg_iterator *iter) 3181{ 3182 iter->t = exp; 3183 iter->n = aggr_init_expr_nargs (exp); 3184 iter->i = 0; 3185} 3186 3187/* Return the next argument from abstract argument list iterator object ITER, 3188 and advance its state. Return NULL_TREE if there are no more arguments. */ 3189inline tree 3190next_aggr_init_expr_arg (aggr_init_expr_arg_iterator *iter) 3191{ 3192 tree result; 3193 if (iter->i >= iter->n) 3194 return NULL_TREE; 3195 result = AGGR_INIT_EXPR_ARG (iter->t, iter->i); 3196 iter->i++; 3197 return result; 3198} 3199 3200/* Initialize the abstract argument list iterator object ITER, then advance 3201 past and return the first argument. Useful in for expressions, e.g. 3202 for (arg = first_aggr_init_expr_arg (exp, &iter); arg; 3203 arg = next_aggr_init_expr_arg (&iter)) */ 3204inline tree 3205first_aggr_init_expr_arg (tree exp, aggr_init_expr_arg_iterator *iter) 3206{ 3207 init_aggr_init_expr_arg_iterator (exp, iter); 3208 return next_aggr_init_expr_arg (iter); 3209} 3210 3211/* Test whether there are more arguments in abstract argument list iterator 3212 ITER, without changing its state. */ 3213inline bool 3214more_aggr_init_expr_args_p (const aggr_init_expr_arg_iterator *iter) 3215{ 3216 return (iter->i < iter->n); 3217} 3218 3219/* Iterate through each argument ARG of AGGR_INIT_EXPR CALL, using variable 3220 ITER (of type aggr_init_expr_arg_iterator) to hold the iteration state. */ 3221#define FOR_EACH_AGGR_INIT_EXPR_ARG(arg, iter, call) \ 3222 for ((arg) = first_aggr_init_expr_arg ((call), &(iter)); (arg); \ 3223 (arg) = next_aggr_init_expr_arg (&(iter))) 3224 3225/* VEC_INIT_EXPR accessors. */ 3226#define VEC_INIT_EXPR_SLOT(NODE) TREE_OPERAND (VEC_INIT_EXPR_CHECK (NODE), 0) 3227#define VEC_INIT_EXPR_INIT(NODE) TREE_OPERAND (VEC_INIT_EXPR_CHECK (NODE), 1) 3228 3229/* Indicates that a VEC_INIT_EXPR is a potential constant expression. 3230 Only set when the current function is constexpr. */ 3231#define VEC_INIT_EXPR_IS_CONSTEXPR(NODE) \ 3232 TREE_LANG_FLAG_0 (VEC_INIT_EXPR_CHECK (NODE)) 3233 3234/* Indicates that a VEC_INIT_EXPR is expressing value-initialization. */ 3235#define VEC_INIT_EXPR_VALUE_INIT(NODE) \ 3236 TREE_LANG_FLAG_1 (VEC_INIT_EXPR_CHECK (NODE)) 3237 3238/* The condition under which this MUST_NOT_THROW_EXPR actually blocks 3239 exceptions. NULL_TREE means 'true'. */ 3240#define MUST_NOT_THROW_COND(NODE) \ 3241 TREE_OPERAND (MUST_NOT_THROW_EXPR_CHECK (NODE), 1) 3242 3243/* The TYPE_MAIN_DECL for a class template type is a TYPE_DECL, not a 3244 TEMPLATE_DECL. This macro determines whether or not a given class 3245 type is really a template type, as opposed to an instantiation or 3246 specialization of one. */ 3247#define CLASSTYPE_IS_TEMPLATE(NODE) \ 3248 (CLASSTYPE_TEMPLATE_INFO (NODE) \ 3249 && !CLASSTYPE_USE_TEMPLATE (NODE) \ 3250 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE))) 3251 3252/* The name used by the user to name the typename type. Typically, 3253 this is an IDENTIFIER_NODE, and the same as the DECL_NAME on the 3254 corresponding TYPE_DECL. However, this may also be a 3255 TEMPLATE_ID_EXPR if we had something like `typename X::Y<T>'. */ 3256#define TYPENAME_TYPE_FULLNAME(NODE) \ 3257 (TYPE_VALUES_RAW (TYPENAME_TYPE_CHECK (NODE))) 3258 3259/* True if a TYPENAME_TYPE was declared as an "enum". */ 3260#define TYPENAME_IS_ENUM_P(NODE) \ 3261 (TREE_LANG_FLAG_0 (TYPENAME_TYPE_CHECK (NODE))) 3262 3263/* True if a TYPENAME_TYPE was declared as a "class", "struct", or 3264 "union". */ 3265#define TYPENAME_IS_CLASS_P(NODE) \ 3266 (TREE_LANG_FLAG_1 (TYPENAME_TYPE_CHECK (NODE))) 3267 3268/* True if a TYPENAME_TYPE is in the process of being resolved. */ 3269#define TYPENAME_IS_RESOLVING_P(NODE) \ 3270 (TREE_LANG_FLAG_2 (TYPENAME_TYPE_CHECK (NODE))) 3271 3272/* [class.virtual] 3273 3274 A class that declares or inherits a virtual function is called a 3275 polymorphic class. */ 3276#define TYPE_POLYMORPHIC_P(NODE) (TREE_LANG_FLAG_2 (NODE)) 3277 3278/* Nonzero if this class has a virtual function table pointer. */ 3279#define TYPE_CONTAINS_VPTR_P(NODE) \ 3280 (TYPE_POLYMORPHIC_P (NODE) || CLASSTYPE_VBASECLASSES (NODE)) 3281 3282/* This flag is true of a local VAR_DECL if it was declared in a for 3283 statement, but we are no longer in the scope of the for. */ 3284#define DECL_DEAD_FOR_LOCAL(NODE) DECL_LANG_FLAG_7 (VAR_DECL_CHECK (NODE)) 3285 3286/* This flag is set on a VAR_DECL that is a DECL_DEAD_FOR_LOCAL 3287 if we already emitted a warning about using it. */ 3288#define DECL_ERROR_REPORTED(NODE) DECL_LANG_FLAG_0 (VAR_DECL_CHECK (NODE)) 3289 3290/* Nonzero if NODE is a FUNCTION_DECL (for a function with global 3291 scope) declared in a local scope. */ 3292#define DECL_LOCAL_FUNCTION_P(NODE) \ 3293 DECL_LANG_FLAG_0 (FUNCTION_DECL_CHECK (NODE)) 3294 3295/* Nonzero if NODE is the target for genericization of 'break' stmts. */ 3296#define LABEL_DECL_BREAK(NODE) \ 3297 DECL_LANG_FLAG_0 (LABEL_DECL_CHECK (NODE)) 3298 3299/* Nonzero if NODE is the target for genericization of 'continue' stmts. */ 3300#define LABEL_DECL_CONTINUE(NODE) \ 3301 DECL_LANG_FLAG_1 (LABEL_DECL_CHECK (NODE)) 3302 3303/* True if NODE was declared with auto in its return type, but it has 3304 started compilation and so the return type might have been changed by 3305 return type deduction; its declared return type should be found in 3306 DECL_STRUCT_FUNCTION(NODE)->language->x_auto_return_pattern. */ 3307#define FNDECL_USED_AUTO(NODE) \ 3308 TREE_LANG_FLAG_2 (FUNCTION_DECL_CHECK (NODE)) 3309 3310/* Nonzero if NODE is a DECL which we know about but which has not 3311 been explicitly declared, such as a built-in function or a friend 3312 declared inside a class. In the latter case DECL_HIDDEN_FRIEND_P 3313 will be set. */ 3314#define DECL_ANTICIPATED(NODE) \ 3315 (DECL_LANG_SPECIFIC (TYPE_FUNCTION_OR_TEMPLATE_DECL_CHECK (NODE)) \ 3316 ->u.base.anticipated_p) 3317 3318/* Nonzero if NODE is a FUNCTION_DECL which was declared as a friend 3319 within a class but has not been declared in the surrounding scope. 3320 The function is invisible except via argument dependent lookup. */ 3321#define DECL_HIDDEN_FRIEND_P(NODE) \ 3322 (LANG_DECL_FN_CHECK (DECL_COMMON_CHECK (NODE))->hidden_friend_p) 3323 3324/* Nonzero if NODE is an artificial FUNCTION_DECL for 3325 #pragma omp declare reduction. */ 3326#define DECL_OMP_DECLARE_REDUCTION_P(NODE) \ 3327 (LANG_DECL_FN_CHECK (DECL_COMMON_CHECK (NODE))->omp_declare_reduction_p) 3328 3329/* Nonzero if DECL has been declared threadprivate by 3330 #pragma omp threadprivate. */ 3331#define CP_DECL_THREADPRIVATE_P(DECL) \ 3332 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (DECL))->u.base.threadprivate_or_deleted_p) 3333 3334/* Nonzero if DECL was declared with '= delete'. */ 3335#define DECL_DELETED_FN(DECL) \ 3336 (LANG_DECL_FN_CHECK (DECL)->min.base.threadprivate_or_deleted_p) 3337 3338/* Nonzero if DECL was declared with '= default' (maybe implicitly). */ 3339#define DECL_DEFAULTED_FN(DECL) \ 3340 (LANG_DECL_FN_CHECK (DECL)->defaulted_p) 3341 3342/* Nonzero if DECL is explicitly defaulted in the class body. */ 3343#define DECL_DEFAULTED_IN_CLASS_P(DECL) \ 3344 (DECL_DEFAULTED_FN (DECL) && DECL_INITIALIZED_IN_CLASS_P (DECL)) 3345/* Nonzero if DECL was defaulted outside the class body. */ 3346#define DECL_DEFAULTED_OUTSIDE_CLASS_P(DECL) \ 3347 (DECL_DEFAULTED_FN (DECL) \ 3348 && !(DECL_ARTIFICIAL (DECL) || DECL_INITIALIZED_IN_CLASS_P (DECL))) 3349 3350/* Record whether a typedef for type `int' was actually `signed int'. */ 3351#define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP) 3352 3353/* Returns nonzero if DECL has external linkage, as specified by the 3354 language standard. (This predicate may hold even when the 3355 corresponding entity is not actually given external linkage in the 3356 object file; see decl_linkage for details.) */ 3357#define DECL_EXTERNAL_LINKAGE_P(DECL) \ 3358 (decl_linkage (DECL) == lk_external) 3359 3360/* Keep these codes in ascending code order. */ 3361 3362#define INTEGRAL_CODE_P(CODE) \ 3363 ((CODE) == ENUMERAL_TYPE \ 3364 || (CODE) == BOOLEAN_TYPE \ 3365 || (CODE) == INTEGER_TYPE) 3366 3367/* [basic.fundamental] 3368 3369 Types bool, char, wchar_t, and the signed and unsigned integer types 3370 are collectively called integral types. 3371 3372 Note that INTEGRAL_TYPE_P, as defined in tree.h, allows enumeration 3373 types as well, which is incorrect in C++. Keep these checks in 3374 ascending code order. */ 3375#define CP_INTEGRAL_TYPE_P(TYPE) \ 3376 (TREE_CODE (TYPE) == BOOLEAN_TYPE \ 3377 || TREE_CODE (TYPE) == INTEGER_TYPE) 3378 3379/* Returns true if TYPE is an integral or enumeration name. Keep 3380 these checks in ascending code order. */ 3381#define INTEGRAL_OR_ENUMERATION_TYPE_P(TYPE) \ 3382 (TREE_CODE (TYPE) == ENUMERAL_TYPE || CP_INTEGRAL_TYPE_P (TYPE)) 3383 3384/* Returns true if TYPE is an integral or unscoped enumeration type. */ 3385#define INTEGRAL_OR_UNSCOPED_ENUMERATION_TYPE_P(TYPE) \ 3386 (UNSCOPED_ENUM_P (TYPE) || CP_INTEGRAL_TYPE_P (TYPE)) 3387 3388/* True if the class type TYPE is a literal type. */ 3389#define CLASSTYPE_LITERAL_P(TYPE) \ 3390 (LANG_TYPE_CLASS_CHECK (TYPE)->is_literal) 3391 3392/* [basic.fundamental] 3393 3394 Integral and floating types are collectively called arithmetic 3395 types. 3396 3397 As a GNU extension, we also accept complex types. 3398 3399 Keep these checks in ascending code order. */ 3400#define ARITHMETIC_TYPE_P(TYPE) \ 3401 (CP_INTEGRAL_TYPE_P (TYPE) \ 3402 || TREE_CODE (TYPE) == REAL_TYPE \ 3403 || TREE_CODE (TYPE) == COMPLEX_TYPE) 3404 3405/* True iff TYPE is cv decltype(nullptr). */ 3406#define NULLPTR_TYPE_P(TYPE) (TREE_CODE (TYPE) == NULLPTR_TYPE) 3407 3408/* [basic.types] 3409 3410 Arithmetic types, enumeration types, pointer types, 3411 pointer-to-member types, and std::nullptr_t are collectively called 3412 scalar types. 3413 3414 Keep these checks in ascending code order. */ 3415#define SCALAR_TYPE_P(TYPE) \ 3416 (TYPE_PTRDATAMEM_P (TYPE) \ 3417 || TREE_CODE (TYPE) == ENUMERAL_TYPE \ 3418 || ARITHMETIC_TYPE_P (TYPE) \ 3419 || TYPE_PTR_P (TYPE) \ 3420 || TYPE_PTRMEMFUNC_P (TYPE) \ 3421 || NULLPTR_TYPE_P (TYPE)) 3422 3423/* Determines whether this type is a C++0x scoped enumeration 3424 type. Scoped enumerations types are introduced via "enum class" or 3425 "enum struct", e.g., 3426 3427 enum class Color { 3428 Red, Green, Blue 3429 }; 3430 3431 Scoped enumeration types are different from normal (unscoped) 3432 enumeration types in several ways: 3433 3434 - The enumerators of a scoped enumeration type are only available 3435 within the scope of the enumeration type and not in the 3436 enclosing scope. For example, the Red color can be referred to 3437 with "Color::Red" but not "Red". 3438 3439 - Scoped enumerators and enumerations do not implicitly convert 3440 to integers or 'bool'. 3441 3442 - The underlying type of the enum is well-defined. */ 3443#define SCOPED_ENUM_P(TYPE) \ 3444 (TREE_CODE (TYPE) == ENUMERAL_TYPE && ENUM_IS_SCOPED (TYPE)) 3445 3446/* Determine whether this is an unscoped enumeration type. */ 3447#define UNSCOPED_ENUM_P(TYPE) \ 3448 (TREE_CODE (TYPE) == ENUMERAL_TYPE && !ENUM_IS_SCOPED (TYPE)) 3449 3450/* Set the flag indicating whether an ENUMERAL_TYPE is a C++0x scoped 3451 enumeration type (1) or a normal (unscoped) enumeration type 3452 (0). */ 3453#define SET_SCOPED_ENUM_P(TYPE, VAL) \ 3454 (ENUM_IS_SCOPED (TYPE) = (VAL)) 3455 3456#define SET_OPAQUE_ENUM_P(TYPE, VAL) \ 3457 (ENUM_IS_OPAQUE (TYPE) = (VAL)) 3458 3459#define OPAQUE_ENUM_P(TYPE) \ 3460 (TREE_CODE (TYPE) == ENUMERAL_TYPE && ENUM_IS_OPAQUE (TYPE)) 3461 3462/* Determines whether an ENUMERAL_TYPE has an explicit 3463 underlying type. */ 3464#define ENUM_FIXED_UNDERLYING_TYPE_P(NODE) (TYPE_LANG_FLAG_5 (NODE)) 3465 3466/* Returns the underlying type of the given enumeration type. The 3467 underlying type is determined in different ways, depending on the 3468 properties of the enum: 3469 3470 - In C++0x, the underlying type can be explicitly specified, e.g., 3471 3472 enum E1 : char { ... } // underlying type is char 3473 3474 - In a C++0x scoped enumeration, the underlying type is int 3475 unless otherwises specified: 3476 3477 enum class E2 { ... } // underlying type is int 3478 3479 - Otherwise, the underlying type is determined based on the 3480 values of the enumerators. In this case, the 3481 ENUM_UNDERLYING_TYPE will not be set until after the definition 3482 of the enumeration is completed by finish_enum. */ 3483#define ENUM_UNDERLYING_TYPE(TYPE) \ 3484 TREE_TYPE (ENUMERAL_TYPE_CHECK (TYPE)) 3485 3486/* [dcl.init.aggr] 3487 3488 An aggregate is an array or a class with no user-provided 3489 constructors, no brace-or-equal-initializers for non-static data 3490 members, no private or protected non-static data members, no 3491 base classes, and no virtual functions. 3492 3493 As an extension, we also treat vectors as aggregates. Keep these 3494 checks in ascending code order. */ 3495#define CP_AGGREGATE_TYPE_P(TYPE) \ 3496 (TREE_CODE (TYPE) == VECTOR_TYPE \ 3497 ||TREE_CODE (TYPE) == ARRAY_TYPE \ 3498 || (CLASS_TYPE_P (TYPE) && !CLASSTYPE_NON_AGGREGATE (TYPE))) 3499 3500/* Nonzero for a class type means that the class type has a 3501 user-declared constructor. */ 3502#define TYPE_HAS_USER_CONSTRUCTOR(NODE) (TYPE_LANG_FLAG_1 (NODE)) 3503 3504/* Nonzero means that the FUNCTION_TYPE or METHOD_TYPE has a 3505 late-specified return type. */ 3506#define TYPE_HAS_LATE_RETURN_TYPE(NODE) \ 3507 (TYPE_LANG_FLAG_2 (FUNC_OR_METHOD_CHECK (NODE))) 3508 3509/* When appearing in an INDIRECT_REF, it means that the tree structure 3510 underneath is actually a call to a constructor. This is needed 3511 when the constructor must initialize local storage (which can 3512 be automatically destroyed), rather than allowing it to allocate 3513 space from the heap. 3514 3515 When appearing in a SAVE_EXPR, it means that underneath 3516 is a call to a constructor. 3517 3518 When appearing in a CONSTRUCTOR, the expression is a 3519 compound literal. 3520 3521 When appearing in a FIELD_DECL, it means that this field 3522 has been duly initialized in its constructor. */ 3523#define TREE_HAS_CONSTRUCTOR(NODE) (TREE_LANG_FLAG_4 (NODE)) 3524 3525/* True if NODE is a brace-enclosed initializer. */ 3526#define BRACE_ENCLOSED_INITIALIZER_P(NODE) \ 3527 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_TYPE (NODE) == init_list_type_node) 3528 3529/* True if NODE is a compound-literal, i.e., a brace-enclosed 3530 initializer cast to a particular type. */ 3531#define COMPOUND_LITERAL_P(NODE) \ 3532 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_HAS_CONSTRUCTOR (NODE)) 3533 3534#define EMPTY_CONSTRUCTOR_P(NODE) (TREE_CODE (NODE) == CONSTRUCTOR \ 3535 && vec_safe_is_empty(CONSTRUCTOR_ELTS(NODE))\ 3536 && !TREE_HAS_CONSTRUCTOR (NODE)) 3537 3538/* True if NODE is a init-list used as a direct-initializer, i.e. 3539 B b{1,2}, not B b({1,2}) or B b = {1,2}. */ 3540#define CONSTRUCTOR_IS_DIRECT_INIT(NODE) (TREE_LANG_FLAG_0 (CONSTRUCTOR_CHECK (NODE))) 3541 3542/* True if an uninitialized element in NODE should not be treated as 3543 implicitly value-initialized. Only used in constexpr evaluation. */ 3544#define CONSTRUCTOR_NO_IMPLICIT_ZERO(NODE) \ 3545 (TREE_LANG_FLAG_1 (CONSTRUCTOR_CHECK (NODE))) 3546 3547/* True if this CONSTRUCTOR should not be used as a variable initializer 3548 because it was loaded from a constexpr variable with mutable fields. */ 3549#define CONSTRUCTOR_MUTABLE_POISON(NODE) \ 3550 (TREE_LANG_FLAG_2 (CONSTRUCTOR_CHECK (NODE))) 3551 3552#define DIRECT_LIST_INIT_P(NODE) \ 3553 (BRACE_ENCLOSED_INITIALIZER_P (NODE) && CONSTRUCTOR_IS_DIRECT_INIT (NODE)) 3554 3555/* True if NODE represents a conversion for direct-initialization in a 3556 template. Set by perform_implicit_conversion_flags. */ 3557#define IMPLICIT_CONV_EXPR_DIRECT_INIT(NODE) \ 3558 (TREE_LANG_FLAG_0 (IMPLICIT_CONV_EXPR_CHECK (NODE))) 3559 3560/* Nonzero means that an object of this type can not be initialized using 3561 an initializer list. */ 3562#define CLASSTYPE_NON_AGGREGATE(NODE) \ 3563 (LANG_TYPE_CLASS_CHECK (NODE)->non_aggregate) 3564#define TYPE_NON_AGGREGATE_CLASS(NODE) \ 3565 (CLASS_TYPE_P (NODE) && CLASSTYPE_NON_AGGREGATE (NODE)) 3566 3567/* Nonzero if there is a non-trivial X::op=(cv X&) for this class. */ 3568#define TYPE_HAS_COMPLEX_COPY_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_copy_assign) 3569 3570/* Nonzero if there is a non-trivial X::X(cv X&) for this class. */ 3571#define TYPE_HAS_COMPLEX_COPY_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_copy_ctor) 3572 3573/* Nonzero if there is a non-trivial X::op=(X&&) for this class. */ 3574#define TYPE_HAS_COMPLEX_MOVE_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_move_assign) 3575 3576/* Nonzero if there is a non-trivial X::X(X&&) for this class. */ 3577#define TYPE_HAS_COMPLEX_MOVE_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_move_ctor) 3578 3579/* Nonzero if there is no trivial default constructor for this class. */ 3580#define TYPE_HAS_COMPLEX_DFLT(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_dflt) 3581 3582/* Nonzero if TYPE has a trivial destructor. From [class.dtor]: 3583 3584 A destructor is trivial if it is an implicitly declared 3585 destructor and if: 3586 3587 - all of the direct base classes of its class have trivial 3588 destructors, 3589 3590 - for all of the non-static data members of its class that are 3591 of class type (or array thereof), each such class has a 3592 trivial destructor. */ 3593#define TYPE_HAS_TRIVIAL_DESTRUCTOR(NODE) \ 3594 (!TYPE_HAS_NONTRIVIAL_DESTRUCTOR (NODE)) 3595 3596/* Nonzero for _TYPE node means that this type does not have a trivial 3597 destructor. Therefore, destroying an object of this type will 3598 involve a call to a destructor. This can apply to objects of 3599 ARRAY_TYPE is the type of the elements needs a destructor. */ 3600#define TYPE_HAS_NONTRIVIAL_DESTRUCTOR(NODE) \ 3601 (TYPE_LANG_FLAG_4 (NODE)) 3602 3603/* Nonzero for class type means that the default constructor is trivial. */ 3604#define TYPE_HAS_TRIVIAL_DFLT(NODE) \ 3605 (TYPE_HAS_DEFAULT_CONSTRUCTOR (NODE) && ! TYPE_HAS_COMPLEX_DFLT (NODE)) 3606 3607/* Nonzero for class type means that copy initialization of this type can use 3608 a bitwise copy. */ 3609#define TYPE_HAS_TRIVIAL_COPY_CTOR(NODE) \ 3610 (TYPE_HAS_COPY_CTOR (NODE) && ! TYPE_HAS_COMPLEX_COPY_CTOR (NODE)) 3611 3612/* Nonzero for class type means that assignment of this type can use 3613 a bitwise copy. */ 3614#define TYPE_HAS_TRIVIAL_COPY_ASSIGN(NODE) \ 3615 (TYPE_HAS_COPY_ASSIGN (NODE) && ! TYPE_HAS_COMPLEX_COPY_ASSIGN (NODE)) 3616 3617/* Returns true if NODE is a pointer-to-data-member. */ 3618#define TYPE_PTRDATAMEM_P(NODE) \ 3619 (TREE_CODE (NODE) == OFFSET_TYPE) 3620/* Returns true if NODE is a pointer. */ 3621#define TYPE_PTR_P(NODE) \ 3622 (TREE_CODE (NODE) == POINTER_TYPE) 3623 3624/* Returns true if NODE is an object type: 3625 3626 [basic.types] 3627 3628 An object type is a (possibly cv-qualified) type that is not a 3629 function type, not a reference type, and not a void type. 3630 3631 Keep these checks in ascending order, for speed. */ 3632#define TYPE_OBJ_P(NODE) \ 3633 (TREE_CODE (NODE) != REFERENCE_TYPE \ 3634 && !VOID_TYPE_P (NODE) \ 3635 && TREE_CODE (NODE) != FUNCTION_TYPE \ 3636 && TREE_CODE (NODE) != METHOD_TYPE) 3637 3638/* Returns true if NODE is a pointer to an object. Keep these checks 3639 in ascending tree code order. */ 3640#define TYPE_PTROB_P(NODE) \ 3641 (TYPE_PTR_P (NODE) && TYPE_OBJ_P (TREE_TYPE (NODE))) 3642 3643/* Returns true if NODE is a reference to an object. Keep these checks 3644 in ascending tree code order. */ 3645#define TYPE_REF_OBJ_P(NODE) \ 3646 (TREE_CODE (NODE) == REFERENCE_TYPE && TYPE_OBJ_P (TREE_TYPE (NODE))) 3647 3648/* Returns true if NODE is a pointer to an object, or a pointer to 3649 void. Keep these checks in ascending tree code order. */ 3650#define TYPE_PTROBV_P(NODE) \ 3651 (TYPE_PTR_P (NODE) \ 3652 && !(TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE \ 3653 || TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE)) 3654 3655/* Returns true if NODE is a pointer to function type. */ 3656#define TYPE_PTRFN_P(NODE) \ 3657 (TYPE_PTR_P (NODE) \ 3658 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE) 3659 3660/* Returns true if NODE is a reference to function type. */ 3661#define TYPE_REFFN_P(NODE) \ 3662 (TREE_CODE (NODE) == REFERENCE_TYPE \ 3663 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE) 3664 3665/* Returns true if NODE is a pointer to member function type. */ 3666#define TYPE_PTRMEMFUNC_P(NODE) \ 3667 (TREE_CODE (NODE) == RECORD_TYPE \ 3668 && TYPE_PTRMEMFUNC_FLAG (NODE)) 3669 3670#define TYPE_PTRMEMFUNC_FLAG(NODE) \ 3671 (TYPE_LANG_FLAG_2 (RECORD_TYPE_CHECK (NODE))) 3672 3673/* Returns true if NODE is a pointer-to-member. */ 3674#define TYPE_PTRMEM_P(NODE) \ 3675 (TYPE_PTRDATAMEM_P (NODE) || TYPE_PTRMEMFUNC_P (NODE)) 3676 3677/* Returns true if NODE is a pointer or a pointer-to-member. */ 3678#define TYPE_PTR_OR_PTRMEM_P(NODE) \ 3679 (TYPE_PTR_P (NODE) || TYPE_PTRMEM_P (NODE)) 3680 3681/* Indicates when overload resolution may resolve to a pointer to 3682 member function. [expr.unary.op]/3 */ 3683#define PTRMEM_OK_P(NODE) \ 3684 TREE_LANG_FLAG_0 (TREE_CHECK3 ((NODE), ADDR_EXPR, OFFSET_REF, SCOPE_REF)) 3685 3686/* Get the POINTER_TYPE to the METHOD_TYPE associated with this 3687 pointer to member function. TYPE_PTRMEMFUNC_P _must_ be true, 3688 before using this macro. */ 3689#define TYPE_PTRMEMFUNC_FN_TYPE(NODE) \ 3690 (cp_build_qualified_type (TREE_TYPE (TYPE_FIELDS (NODE)),\ 3691 cp_type_quals (NODE))) 3692 3693/* As above, but can be used in places that want an lvalue at the expense 3694 of not necessarily having the correct cv-qualifiers. */ 3695#define TYPE_PTRMEMFUNC_FN_TYPE_RAW(NODE) \ 3696 (TREE_TYPE (TYPE_FIELDS (NODE))) 3697 3698/* Returns `A' for a type like `int (A::*)(double)' */ 3699#define TYPE_PTRMEMFUNC_OBJECT_TYPE(NODE) \ 3700 TYPE_METHOD_BASETYPE (TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE))) 3701 3702/* These are use to manipulate the canonical RECORD_TYPE from the 3703 hashed POINTER_TYPE, and can only be used on the POINTER_TYPE. */ 3704#define TYPE_GET_PTRMEMFUNC_TYPE(NODE) \ 3705 (TYPE_LANG_SPECIFIC (NODE) ? LANG_TYPE_PTRMEM_CHECK (NODE)->record : NULL) 3706#define TYPE_SET_PTRMEMFUNC_TYPE(NODE, VALUE) \ 3707 do { \ 3708 if (TYPE_LANG_SPECIFIC (NODE) == NULL) \ 3709 { \ 3710 TYPE_LANG_SPECIFIC (NODE) \ 3711 = (struct lang_type *) ggc_internal_cleared_alloc \ 3712 (sizeof (struct lang_type_ptrmem)); \ 3713 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.h.is_lang_type_class = 0; \ 3714 } \ 3715 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.record = (VALUE); \ 3716 } while (0) 3717 3718/* For a pointer-to-member type of the form `T X::*', this is `X'. 3719 For a type like `void (X::*)() const', this type is `X', not `const 3720 X'. To get at the `const X' you have to look at the 3721 TYPE_PTRMEM_POINTED_TO_TYPE; there, the first parameter will have 3722 type `const X*'. */ 3723#define TYPE_PTRMEM_CLASS_TYPE(NODE) \ 3724 (TYPE_PTRDATAMEM_P (NODE) \ 3725 ? TYPE_OFFSET_BASETYPE (NODE) \ 3726 : TYPE_PTRMEMFUNC_OBJECT_TYPE (NODE)) 3727 3728/* For a pointer-to-member type of the form `T X::*', this is `T'. */ 3729#define TYPE_PTRMEM_POINTED_TO_TYPE(NODE) \ 3730 (TYPE_PTRDATAMEM_P (NODE) \ 3731 ? TREE_TYPE (NODE) \ 3732 : TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE))) 3733 3734/* For a pointer-to-member constant `X::Y' this is the RECORD_TYPE for 3735 `X'. */ 3736#define PTRMEM_CST_CLASS(NODE) \ 3737 TYPE_PTRMEM_CLASS_TYPE (TREE_TYPE (PTRMEM_CST_CHECK (NODE))) 3738 3739/* For a pointer-to-member constant `X::Y' this is the _DECL for 3740 `Y'. */ 3741#define PTRMEM_CST_MEMBER(NODE) (((ptrmem_cst_t)PTRMEM_CST_CHECK (NODE))->member) 3742 3743/* The expression in question for a TYPEOF_TYPE. */ 3744#define TYPEOF_TYPE_EXPR(NODE) (TYPE_VALUES_RAW (TYPEOF_TYPE_CHECK (NODE))) 3745 3746/* The type in question for an UNDERLYING_TYPE. */ 3747#define UNDERLYING_TYPE_TYPE(NODE) \ 3748 (TYPE_VALUES_RAW (UNDERLYING_TYPE_CHECK (NODE))) 3749 3750/* The type in question for BASES. */ 3751#define BASES_TYPE(NODE) \ 3752 (TYPE_VALUES_RAW (BASES_CHECK (NODE))) 3753 3754#define BASES_DIRECT(NODE) \ 3755 TREE_LANG_FLAG_0 (BASES_CHECK (NODE)) 3756 3757/* The expression in question for a DECLTYPE_TYPE. */ 3758#define DECLTYPE_TYPE_EXPR(NODE) (TYPE_VALUES_RAW (DECLTYPE_TYPE_CHECK (NODE))) 3759 3760/* Whether the DECLTYPE_TYPE_EXPR of NODE was originally parsed as an 3761 id-expression or a member-access expression. When false, it was 3762 parsed as a full expression. */ 3763#define DECLTYPE_TYPE_ID_EXPR_OR_MEMBER_ACCESS_P(NODE) \ 3764 (DECLTYPE_TYPE_CHECK (NODE))->type_common.string_flag 3765 3766/* These flags indicate that we want different semantics from normal 3767 decltype: lambda capture just drops references, init capture 3768 uses auto semantics, lambda proxies look through implicit dereference. */ 3769#define DECLTYPE_FOR_LAMBDA_CAPTURE(NODE) \ 3770 TREE_LANG_FLAG_0 (DECLTYPE_TYPE_CHECK (NODE)) 3771#define DECLTYPE_FOR_INIT_CAPTURE(NODE) \ 3772 TREE_LANG_FLAG_1 (DECLTYPE_TYPE_CHECK (NODE)) 3773#define DECLTYPE_FOR_LAMBDA_PROXY(NODE) \ 3774 TREE_LANG_FLAG_2 (DECLTYPE_TYPE_CHECK (NODE)) 3775 3776/* Nonzero for VAR_DECL and FUNCTION_DECL node means that `extern' was 3777 specified in its declaration. This can also be set for an 3778 erroneously declared PARM_DECL. */ 3779#define DECL_THIS_EXTERN(NODE) \ 3780 DECL_LANG_FLAG_2 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE)) 3781 3782/* Nonzero for VAR_DECL and FUNCTION_DECL node means that `static' was 3783 specified in its declaration. This can also be set for an 3784 erroneously declared PARM_DECL. */ 3785#define DECL_THIS_STATIC(NODE) \ 3786 DECL_LANG_FLAG_6 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE)) 3787 3788/* Nonzero for FIELD_DECL node means that this field is a lambda capture 3789 field for an array of runtime bound. */ 3790#define DECL_VLA_CAPTURE_P(NODE) \ 3791 DECL_LANG_FLAG_1 (FIELD_DECL_CHECK (NODE)) 3792 3793/* Nonzero for PARM_DECL node means that this is an array function 3794 parameter, i.e, a[] rather than *a. */ 3795#define DECL_ARRAY_PARAMETER_P(NODE) \ 3796 DECL_LANG_FLAG_1 (PARM_DECL_CHECK (NODE)) 3797 3798/* Nonzero for FIELD_DECL node means that this field is a base class 3799 of the parent object, as opposed to a member field. */ 3800#define DECL_FIELD_IS_BASE(NODE) \ 3801 DECL_LANG_FLAG_6 (FIELD_DECL_CHECK (NODE)) 3802 3803/* Nonzero for FIELD_DECL node means that this field is a simple (no 3804 explicit initializer) lambda capture field, making it invisible to 3805 name lookup in unevaluated contexts. */ 3806#define DECL_NORMAL_CAPTURE_P(NODE) \ 3807 DECL_LANG_FLAG_7 (FIELD_DECL_CHECK (NODE)) 3808 3809/* Nonzero if TYPE is an anonymous union or struct type. We have to use a 3810 flag for this because "A union for which objects or pointers are 3811 declared is not an anonymous union" [class.union]. */ 3812#define ANON_AGGR_TYPE_P(NODE) \ 3813 (CLASS_TYPE_P (NODE) && LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr) 3814#define SET_ANON_AGGR_TYPE_P(NODE) \ 3815 (LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr = 1) 3816 3817/* Nonzero if TYPE is an anonymous union type. */ 3818#define ANON_UNION_TYPE_P(NODE) \ 3819 (TREE_CODE (NODE) == UNION_TYPE && ANON_AGGR_TYPE_P (NODE)) 3820 3821/* Define fields and accessors for nodes representing declared names. */ 3822 3823#define TYPE_WAS_ANONYMOUS(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->was_anonymous) 3824 3825/* C++: all of these are overloaded! These apply only to TYPE_DECLs. */ 3826 3827/* The format of each node in the DECL_FRIENDLIST is as follows: 3828 3829 The TREE_PURPOSE will be the name of a function, i.e., an 3830 IDENTIFIER_NODE. The TREE_VALUE will be itself a TREE_LIST, whose 3831 TREE_VALUEs are friends with the given name. */ 3832#define DECL_FRIENDLIST(NODE) (DECL_INITIAL (NODE)) 3833#define FRIEND_NAME(LIST) (TREE_PURPOSE (LIST)) 3834#define FRIEND_DECLS(LIST) (TREE_VALUE (LIST)) 3835 3836/* The DECL_ACCESS, if non-NULL, is a TREE_LIST. The TREE_PURPOSE of 3837 each node is a type; the TREE_VALUE is the access granted for this 3838 DECL in that type. The DECL_ACCESS is set by access declarations. 3839 For example, if a member that would normally be public in a 3840 derived class is made protected, then the derived class and the 3841 protected_access_node will appear in the DECL_ACCESS for the node. */ 3842#define DECL_ACCESS(NODE) (LANG_DECL_U2_CHECK (NODE, 0)->access) 3843 3844/* Nonzero if the FUNCTION_DECL is a global constructor. */ 3845#define DECL_GLOBAL_CTOR_P(NODE) \ 3846 (LANG_DECL_FN_CHECK (NODE)->global_ctor_p) 3847 3848/* Nonzero if the FUNCTION_DECL is a global destructor. */ 3849#define DECL_GLOBAL_DTOR_P(NODE) \ 3850 (LANG_DECL_FN_CHECK (NODE)->global_dtor_p) 3851 3852/* Accessor macros for C++ template decl nodes. */ 3853 3854/* The DECL_TEMPLATE_PARMS are a list. The TREE_PURPOSE of each node 3855 is a INT_CST whose TREE_INT_CST_LOW indicates the level of the 3856 template parameters, with 1 being the outermost set of template 3857 parameters. The TREE_VALUE is a vector, whose elements are the 3858 template parameters at each level. Each element in the vector is a 3859 TREE_LIST, whose TREE_VALUE is a PARM_DECL (if the parameter is a 3860 non-type parameter), or a TYPE_DECL (if the parameter is a type 3861 parameter). The TREE_PURPOSE is the default value, if any. The 3862 TEMPLATE_PARM_INDEX for the parameter is available as the 3863 DECL_INITIAL (for a PARM_DECL) or as the TREE_TYPE (for a 3864 TYPE_DECL). 3865 3866 FIXME: CONST_CAST_TREE is a hack that hopefully will go away after 3867 tree is converted to C++ class hiearchy. */ 3868#define DECL_TEMPLATE_PARMS(NODE) \ 3869 ((struct tree_template_decl *)CONST_CAST_TREE (TEMPLATE_DECL_CHECK (NODE)))->arguments 3870#define DECL_INNERMOST_TEMPLATE_PARMS(NODE) \ 3871 INNERMOST_TEMPLATE_PARMS (DECL_TEMPLATE_PARMS (NODE)) 3872#define DECL_NTPARMS(NODE) \ 3873 TREE_VEC_LENGTH (DECL_INNERMOST_TEMPLATE_PARMS (NODE)) 3874/* For function, method, class-data templates. 3875 3876 FIXME: CONST_CAST_TREE is a hack that hopefully will go away after 3877 tree is converted to C++ class hiearchy. */ 3878#define DECL_TEMPLATE_RESULT(NODE) \ 3879 ((struct tree_template_decl *)CONST_CAST_TREE(TEMPLATE_DECL_CHECK (NODE)))->result 3880/* For a function template at namespace scope, DECL_TEMPLATE_INSTANTIATIONS 3881 lists all instantiations and specializations of the function so that 3882 tsubst_friend_function can reassign them to another template if we find 3883 that the namespace-scope template is really a partial instantiation of a 3884 friend template. 3885 3886 For a class template the DECL_TEMPLATE_INSTANTIATIONS lists holds 3887 all instantiations and specializations of the class type, including 3888 partial instantiations and partial specializations, so that if we 3889 explicitly specialize a partial instantiation we can walk the list 3890 in maybe_process_partial_specialization and reassign them or complain 3891 as appropriate. 3892 3893 In both cases, the TREE_PURPOSE of each node contains the arguments 3894 used; the TREE_VALUE contains the generated variable. The template 3895 arguments are always complete. For example, given: 3896 3897 template <class T> struct S1 { 3898 template <class U> struct S2 {}; 3899 template <class U> struct S2<U*> {}; 3900 }; 3901 3902 the record for the partial specialization will contain, as its 3903 argument list, { {T}, {U*} }, and will be on the 3904 DECL_TEMPLATE_INSTANTIATIONS list for `template <class T> template 3905 <class U> struct S1<T>::S2'. 3906 3907 This list is not used for other templates. */ 3908#define DECL_TEMPLATE_INSTANTIATIONS(NODE) \ 3909 DECL_SIZE_UNIT (TEMPLATE_DECL_CHECK (NODE)) 3910 3911/* For a class template, this list contains the partial 3912 specializations of this template. (Full specializations are not 3913 recorded on this list.) The TREE_PURPOSE holds the arguments used 3914 in the partial specialization (e.g., for `template <class T> struct 3915 S<T*, int>' this will be `T*, int'.) The arguments will also include 3916 any outer template arguments. The TREE_VALUE holds the TEMPLATE_DECL 3917 for the partial specialization. The TREE_TYPE is the _TYPE node for 3918 the partial specialization. 3919 3920 This list is not used for other templates. */ 3921#define DECL_TEMPLATE_SPECIALIZATIONS(NODE) \ 3922 DECL_SIZE (TEMPLATE_DECL_CHECK (NODE)) 3923 3924/* Nonzero for a DECL which is actually a template parameter. Keep 3925 these checks in ascending tree code order. */ 3926#define DECL_TEMPLATE_PARM_P(NODE) \ 3927 (DECL_LANG_FLAG_0 (NODE) \ 3928 && (TREE_CODE (NODE) == CONST_DECL \ 3929 || TREE_CODE (NODE) == PARM_DECL \ 3930 || TREE_CODE (NODE) == TYPE_DECL \ 3931 || TREE_CODE (NODE) == TEMPLATE_DECL)) 3932 3933/* Mark NODE as a template parameter. */ 3934#define SET_DECL_TEMPLATE_PARM_P(NODE) \ 3935 (DECL_LANG_FLAG_0 (NODE) = 1) 3936 3937/* Nonzero if NODE is a template template parameter. */ 3938#define DECL_TEMPLATE_TEMPLATE_PARM_P(NODE) \ 3939 (TREE_CODE (NODE) == TEMPLATE_DECL && DECL_TEMPLATE_PARM_P (NODE)) 3940 3941/* Nonzero for a DECL that represents a function template. */ 3942#define DECL_FUNCTION_TEMPLATE_P(NODE) \ 3943 (TREE_CODE (NODE) == TEMPLATE_DECL \ 3944 && DECL_TEMPLATE_RESULT (NODE) != NULL_TREE \ 3945 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == FUNCTION_DECL) 3946 3947/* Nonzero for a DECL that represents a class template or alias 3948 template. */ 3949#define DECL_TYPE_TEMPLATE_P(NODE) \ 3950 (TREE_CODE (NODE) == TEMPLATE_DECL \ 3951 && DECL_TEMPLATE_RESULT (NODE) != NULL_TREE \ 3952 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == TYPE_DECL) 3953 3954/* Nonzero for a DECL that represents a class template. */ 3955#define DECL_CLASS_TEMPLATE_P(NODE) \ 3956 (DECL_TYPE_TEMPLATE_P (NODE) \ 3957 && DECL_IMPLICIT_TYPEDEF_P (DECL_TEMPLATE_RESULT (NODE))) 3958 3959/* Nonzero for a TEMPLATE_DECL that represents an alias template. */ 3960#define DECL_ALIAS_TEMPLATE_P(NODE) \ 3961 (DECL_TYPE_TEMPLATE_P (NODE) \ 3962 && !DECL_ARTIFICIAL (DECL_TEMPLATE_RESULT (NODE))) 3963 3964/* Nonzero for a NODE which declares a type. */ 3965#define DECL_DECLARES_TYPE_P(NODE) \ 3966 (TREE_CODE (NODE) == TYPE_DECL || DECL_TYPE_TEMPLATE_P (NODE)) 3967 3968/* Nonzero if NODE declares a function. */ 3969#define DECL_DECLARES_FUNCTION_P(NODE) \ 3970 (TREE_CODE (NODE) == FUNCTION_DECL || DECL_FUNCTION_TEMPLATE_P (NODE)) 3971 3972/* Nonzero if NODE is the typedef implicitly generated for a type when 3973 the type is declared. In C++, `struct S {};' is roughly 3974 equivalent to `struct S {}; typedef struct S S;' in C. 3975 DECL_IMPLICIT_TYPEDEF_P will hold for the typedef indicated in this 3976 example. In C++, there is a second implicit typedef for each 3977 class, in the scope of `S' itself, so that you can say `S::S'. 3978 DECL_SELF_REFERENCE_P will hold for that second typedef. */ 3979#define DECL_IMPLICIT_TYPEDEF_P(NODE) \ 3980 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_2 (NODE)) 3981#define SET_DECL_IMPLICIT_TYPEDEF_P(NODE) \ 3982 (DECL_LANG_FLAG_2 (NODE) = 1) 3983#define DECL_SELF_REFERENCE_P(NODE) \ 3984 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_4 (NODE)) 3985#define SET_DECL_SELF_REFERENCE_P(NODE) \ 3986 (DECL_LANG_FLAG_4 (NODE) = 1) 3987 3988/* A `primary' template is one that has its own template header and is not 3989 a partial specialization. A member function of a class template is a 3990 template, but not primary. A member template is primary. Friend 3991 templates are primary, too. */ 3992 3993/* Returns the primary template corresponding to these parameters. */ 3994#define DECL_PRIMARY_TEMPLATE(NODE) \ 3995 (TREE_TYPE (DECL_INNERMOST_TEMPLATE_PARMS (NODE))) 3996 3997/* Returns nonzero if NODE is a primary template. */ 3998#define PRIMARY_TEMPLATE_P(NODE) (DECL_PRIMARY_TEMPLATE (NODE) == (NODE)) 3999 4000/* Nonzero iff NODE is a specialization of a template. The value 4001 indicates the type of specializations: 4002 4003 1=implicit instantiation 4004 4005 2=partial or explicit specialization, e.g.: 4006 4007 template <> int min<int> (int, int), 4008 4009 3=explicit instantiation, e.g.: 4010 4011 template int min<int> (int, int); 4012 4013 Note that NODE will be marked as a specialization even if the 4014 template it is instantiating is not a primary template. For 4015 example, given: 4016 4017 template <typename T> struct O { 4018 void f(); 4019 struct I {}; 4020 }; 4021 4022 both O<int>::f and O<int>::I will be marked as instantiations. 4023 4024 If DECL_USE_TEMPLATE is nonzero, then DECL_TEMPLATE_INFO will also 4025 be non-NULL. */ 4026#define DECL_USE_TEMPLATE(NODE) (DECL_LANG_SPECIFIC (NODE)->u.base.use_template) 4027 4028/* Like DECL_USE_TEMPLATE, but for class types. */ 4029#define CLASSTYPE_USE_TEMPLATE(NODE) \ 4030 (LANG_TYPE_CLASS_CHECK (NODE)->use_template) 4031 4032/* True if NODE is a specialization of a primary template. */ 4033#define CLASSTYPE_SPECIALIZATION_OF_PRIMARY_TEMPLATE_P(NODE) \ 4034 (CLASS_TYPE_P (NODE) \ 4035 && CLASSTYPE_USE_TEMPLATE (NODE) \ 4036 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE))) 4037 4038#define DECL_TEMPLATE_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) & 1) 4039#define CLASSTYPE_TEMPLATE_INSTANTIATION(NODE) \ 4040 (CLASSTYPE_USE_TEMPLATE (NODE) & 1) 4041 4042#define DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) == 2) 4043#define SET_DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) = 2) 4044 4045/* Returns true for an explicit or partial specialization of a class 4046 template. */ 4047#define CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \ 4048 (CLASSTYPE_USE_TEMPLATE (NODE) == 2) 4049#define SET_CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \ 4050 (CLASSTYPE_USE_TEMPLATE (NODE) = 2) 4051 4052#define DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 1) 4053#define SET_DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 1) 4054#define CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \ 4055 (CLASSTYPE_USE_TEMPLATE (NODE) == 1) 4056#define SET_CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \ 4057 (CLASSTYPE_USE_TEMPLATE (NODE) = 1) 4058 4059#define DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 3) 4060#define SET_DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 3) 4061#define CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \ 4062 (CLASSTYPE_USE_TEMPLATE (NODE) == 3) 4063#define SET_CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \ 4064 (CLASSTYPE_USE_TEMPLATE (NODE) = 3) 4065 4066/* Nonzero if DECL is a friend function which is an instantiation 4067 from the point of view of the compiler, but not from the point of 4068 view of the language. For example given: 4069 template <class T> struct S { friend void f(T) {}; }; 4070 the declaration of `void f(int)' generated when S<int> is 4071 instantiated will not be a DECL_TEMPLATE_INSTANTIATION, but will be 4072 a DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION. */ 4073#define DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION(DECL) \ 4074 (DECL_TEMPLATE_INFO (DECL) && !DECL_USE_TEMPLATE (DECL)) 4075 4076/* Nonzero if DECL is a function generated from a function 'temploid', 4077 i.e. template, member of class template, or dependent friend. */ 4078#define DECL_TEMPLOID_INSTANTIATION(DECL) \ 4079 (DECL_TEMPLATE_INSTANTIATION (DECL) \ 4080 || DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (DECL)) 4081 4082/* Nonzero if DECL is either defined implicitly by the compiler or 4083 generated from a temploid. */ 4084#define DECL_GENERATED_P(DECL) \ 4085 (DECL_TEMPLOID_INSTANTIATION (DECL) || DECL_DEFAULTED_FN (DECL)) 4086 4087/* Nonzero iff we are currently processing a declaration for an 4088 entity with its own template parameter list, and which is not a 4089 full specialization. */ 4090#define PROCESSING_REAL_TEMPLATE_DECL_P() \ 4091 (processing_template_decl > template_class_depth (current_scope ())) 4092 4093/* Nonzero if this VAR_DECL or FUNCTION_DECL has already been 4094 instantiated, i.e. its definition has been generated from the 4095 pattern given in the template. */ 4096#define DECL_TEMPLATE_INSTANTIATED(NODE) \ 4097 DECL_LANG_FLAG_1 (VAR_OR_FUNCTION_DECL_CHECK (NODE)) 4098 4099/* We know what we're doing with this decl now. */ 4100#define DECL_INTERFACE_KNOWN(NODE) DECL_LANG_FLAG_5 (NODE) 4101 4102/* DECL_EXTERNAL must be set on a decl until the decl is actually emitted, 4103 so that assemble_external will work properly. So we have this flag to 4104 tell us whether the decl is really not external. 4105 4106 This flag does not indicate whether or not the decl is defined in the 4107 current translation unit; it indicates whether or not we should emit the 4108 decl at the end of compilation if it is defined and needed. */ 4109#define DECL_NOT_REALLY_EXTERN(NODE) \ 4110 (DECL_LANG_SPECIFIC (NODE)->u.base.not_really_extern) 4111 4112#define DECL_REALLY_EXTERN(NODE) \ 4113 (DECL_EXTERNAL (NODE) \ 4114 && (!DECL_LANG_SPECIFIC (NODE) || !DECL_NOT_REALLY_EXTERN (NODE))) 4115 4116/* A thunk is a stub function. 4117 4118 A thunk is an alternate entry point for an ordinary FUNCTION_DECL. 4119 The address of the ordinary FUNCTION_DECL is given by the 4120 DECL_INITIAL, which is always an ADDR_EXPR whose operand is a 4121 FUNCTION_DECL. The job of the thunk is to either adjust the this 4122 pointer before transferring control to the FUNCTION_DECL, or call 4123 FUNCTION_DECL and then adjust the result value. Note, the result 4124 pointer adjusting thunk must perform a call to the thunked 4125 function, (or be implemented via passing some invisible parameter 4126 to the thunked function, which is modified to perform the 4127 adjustment just before returning). 4128 4129 A thunk may perform either, or both, of the following operations: 4130 4131 o Adjust the this or result pointer by a constant offset. 4132 o Adjust the this or result pointer by looking up a vcall or vbase offset 4133 in the vtable. 4134 4135 A this pointer adjusting thunk converts from a base to a derived 4136 class, and hence adds the offsets. A result pointer adjusting thunk 4137 converts from a derived class to a base, and hence subtracts the 4138 offsets. If both operations are performed, then the constant 4139 adjustment is performed first for this pointer adjustment and last 4140 for the result pointer adjustment. 4141 4142 The constant adjustment is given by THUNK_FIXED_OFFSET. If the 4143 vcall or vbase offset is required, THUNK_VIRTUAL_OFFSET is 4144 used. For this pointer adjusting thunks, it is the vcall offset 4145 into the vtable. For result pointer adjusting thunks it is the 4146 binfo of the virtual base to convert to. Use that binfo's vbase 4147 offset. 4148 4149 It is possible to have equivalent covariant thunks. These are 4150 distinct virtual covariant thunks whose vbase offsets happen to 4151 have the same value. THUNK_ALIAS is used to pick one as the 4152 canonical thunk, which will get all the this pointer adjusting 4153 thunks attached to it. */ 4154 4155/* An integer indicating how many bytes should be subtracted from the 4156 this or result pointer when this function is called. */ 4157#define THUNK_FIXED_OFFSET(DECL) \ 4158 (DECL_LANG_SPECIFIC (THUNK_FUNCTION_CHECK (DECL))->u.fn.u5.fixed_offset) 4159 4160/* A tree indicating how to perform the virtual adjustment. For a this 4161 adjusting thunk it is the number of bytes to be added to the vtable 4162 to find the vcall offset. For a result adjusting thunk, it is the 4163 binfo of the relevant virtual base. If NULL, then there is no 4164 virtual adjust. (The vptr is always located at offset zero from 4165 the this or result pointer.) (If the covariant type is within the 4166 class hierarchy being laid out, the vbase index is not yet known 4167 at the point we need to create the thunks, hence the need to use 4168 binfos.) */ 4169 4170#define THUNK_VIRTUAL_OFFSET(DECL) \ 4171 (LANG_DECL_U2_CHECK (FUNCTION_DECL_CHECK (DECL), 0)->access) 4172 4173/* A thunk which is equivalent to another thunk. */ 4174#define THUNK_ALIAS(DECL) \ 4175 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->u.min.template_info) 4176 4177/* For thunk NODE, this is the FUNCTION_DECL thunked to. It is 4178 possible for the target to be a thunk too. */ 4179#define THUNK_TARGET(NODE) \ 4180 (LANG_DECL_FN_CHECK (NODE)->befriending_classes) 4181 4182/* True for a SCOPE_REF iff the "template" keyword was used to 4183 indicate that the qualified name denotes a template. */ 4184#define QUALIFIED_NAME_IS_TEMPLATE(NODE) \ 4185 (TREE_LANG_FLAG_1 (SCOPE_REF_CHECK (NODE))) 4186 4187/* True for an OMP_ATOMIC that has dependent parameters. These are stored 4188 as an expr in operand 1, and integer_zero_node in operand 0. */ 4189#define OMP_ATOMIC_DEPENDENT_P(NODE) \ 4190 (TREE_CODE (TREE_OPERAND (OMP_ATOMIC_CHECK (NODE), 0)) == INTEGER_CST) 4191 4192/* Used while gimplifying continue statements bound to OMP_FOR nodes. */ 4193#define OMP_FOR_GIMPLIFYING_P(NODE) \ 4194 (TREE_LANG_FLAG_0 (OMP_LOOP_CHECK (NODE))) 4195 4196/* A language-specific token attached to the OpenMP data clauses to 4197 hold code (or code fragments) related to ctors, dtors, and op=. 4198 See semantics.c for details. */ 4199#define CP_OMP_CLAUSE_INFO(NODE) \ 4200 TREE_TYPE (OMP_CLAUSE_RANGE_CHECK (NODE, OMP_CLAUSE_PRIVATE, \ 4201 OMP_CLAUSE_LINEAR)) 4202 4203/* Nonzero if this transaction expression's body contains statements. */ 4204#define TRANSACTION_EXPR_IS_STMT(NODE) \ 4205 TREE_LANG_FLAG_0 (TRANSACTION_EXPR_CHECK (NODE)) 4206 4207/* These macros provide convenient access to the various _STMT nodes 4208 created when parsing template declarations. */ 4209#define TRY_STMTS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 0) 4210#define TRY_HANDLERS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 1) 4211 4212#define EH_SPEC_STMTS(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 0) 4213#define EH_SPEC_RAISES(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 1) 4214 4215#define USING_STMT_NAMESPACE(NODE) TREE_OPERAND (USING_STMT_CHECK (NODE), 0) 4216 4217/* Nonzero if this try block is a function try block. */ 4218#define FN_TRY_BLOCK_P(NODE) TREE_LANG_FLAG_3 (TRY_BLOCK_CHECK (NODE)) 4219#define HANDLER_PARMS(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 0) 4220#define HANDLER_BODY(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 1) 4221#define HANDLER_TYPE(NODE) TREE_TYPE (HANDLER_CHECK (NODE)) 4222 4223/* CLEANUP_STMT accessors. The statement(s) covered, the cleanup to run 4224 and the VAR_DECL for which this cleanup exists. */ 4225#define CLEANUP_BODY(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 0) 4226#define CLEANUP_EXPR(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 1) 4227#define CLEANUP_DECL(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 2) 4228 4229/* IF_STMT accessors. These give access to the condition of the if 4230 statement, the then block of the if statement, and the else block 4231 of the if statement if it exists. */ 4232#define IF_COND(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 0) 4233#define THEN_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 1) 4234#define ELSE_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 2) 4235#define IF_SCOPE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 3) 4236 4237/* WHILE_STMT accessors. These give access to the condition of the 4238 while statement and the body of the while statement, respectively. */ 4239#define WHILE_COND(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 0) 4240#define WHILE_BODY(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 1) 4241 4242/* DO_STMT accessors. These give access to the condition of the do 4243 statement and the body of the do statement, respectively. */ 4244#define DO_COND(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 0) 4245#define DO_BODY(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 1) 4246 4247/* FOR_STMT accessors. These give access to the init statement, 4248 condition, update expression, and body of the for statement, 4249 respectively. */ 4250#define FOR_INIT_STMT(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 0) 4251#define FOR_COND(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 1) 4252#define FOR_EXPR(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 2) 4253#define FOR_BODY(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 3) 4254#define FOR_SCOPE(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 4) 4255 4256/* RANGE_FOR_STMT accessors. These give access to the declarator, 4257 expression, body, and scope of the statement, respectively. */ 4258#define RANGE_FOR_DECL(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 0) 4259#define RANGE_FOR_EXPR(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 1) 4260#define RANGE_FOR_BODY(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 2) 4261#define RANGE_FOR_SCOPE(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 3) 4262#define RANGE_FOR_IVDEP(NODE) TREE_LANG_FLAG_6 (RANGE_FOR_STMT_CHECK (NODE)) 4263 4264#define SWITCH_STMT_COND(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 0) 4265#define SWITCH_STMT_BODY(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 1) 4266#define SWITCH_STMT_TYPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 2) 4267#define SWITCH_STMT_SCOPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 3) 4268 4269/* STMT_EXPR accessor. */ 4270#define STMT_EXPR_STMT(NODE) TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0) 4271 4272/* EXPR_STMT accessor. This gives the expression associated with an 4273 expression statement. */ 4274#define EXPR_STMT_EXPR(NODE) TREE_OPERAND (EXPR_STMT_CHECK (NODE), 0) 4275 4276/* True if this TARGET_EXPR was created by build_cplus_new, and so we can 4277 discard it if it isn't useful. */ 4278#define TARGET_EXPR_IMPLICIT_P(NODE) \ 4279 TREE_LANG_FLAG_0 (TARGET_EXPR_CHECK (NODE)) 4280 4281/* True if this TARGET_EXPR is the result of list-initialization of a 4282 temporary. */ 4283#define TARGET_EXPR_LIST_INIT_P(NODE) \ 4284 TREE_LANG_FLAG_1 (TARGET_EXPR_CHECK (NODE)) 4285 4286/* True if this TARGET_EXPR expresses direct-initialization of an object 4287 to be named later. */ 4288#define TARGET_EXPR_DIRECT_INIT_P(NODE) \ 4289 TREE_LANG_FLAG_2 (TARGET_EXPR_CHECK (NODE)) 4290 4291/* True if EXPR expresses direct-initialization of a TYPE. */ 4292#define DIRECT_INIT_EXPR_P(TYPE,EXPR) \ 4293 (TREE_CODE (EXPR) == TARGET_EXPR && TREE_LANG_FLAG_2 (EXPR) \ 4294 && same_type_ignoring_top_level_qualifiers_p (TYPE, TREE_TYPE (EXPR))) 4295 4296/* True if this CONVERT_EXPR is for a conversion to virtual base in 4297 an NSDMI, and should be re-evaluated when used in a constructor. */ 4298#define CONVERT_EXPR_VBASE_PATH(NODE) \ 4299 TREE_LANG_FLAG_0 (CONVERT_EXPR_CHECK (NODE)) 4300 4301/* True if SIZEOF_EXPR argument is type. */ 4302#define SIZEOF_EXPR_TYPE_P(NODE) \ 4303 TREE_LANG_FLAG_0 (SIZEOF_EXPR_CHECK (NODE)) 4304 4305/* True if INTEGER_CST is a zero literal seen in function argument list. */ 4306#define LITERAL_ZERO_P(NODE) \ 4307 (INTEGER_CST_CHECK (NODE)->base.nothrow_flag) 4308 4309/* An enumeration of the kind of tags that C++ accepts. */ 4310enum tag_types { 4311 none_type = 0, /* Not a tag type. */ 4312 record_type, /* "struct" types. */ 4313 class_type, /* "class" types. */ 4314 union_type, /* "union" types. */ 4315 enum_type, /* "enum" types. */ 4316 typename_type /* "typename" types. */ 4317}; 4318 4319/* The various kinds of lvalues we distinguish. */ 4320enum cp_lvalue_kind_flags { 4321 clk_none = 0, /* Things that are not an lvalue. */ 4322 clk_ordinary = 1, /* An ordinary lvalue. */ 4323 clk_rvalueref = 2,/* An xvalue (rvalue formed using an rvalue reference) */ 4324 clk_class = 4, /* A prvalue of class-type. */ 4325 clk_bitfield = 8, /* An lvalue for a bit-field. */ 4326 clk_packed = 16 /* An lvalue for a packed field. */ 4327}; 4328 4329/* This type is used for parameters and variables which hold 4330 combinations of the flags in enum cp_lvalue_kind_flags. */ 4331typedef int cp_lvalue_kind; 4332 4333/* Various kinds of template specialization, instantiation, etc. */ 4334typedef enum tmpl_spec_kind { 4335 tsk_none, /* Not a template at all. */ 4336 tsk_invalid_member_spec, /* An explicit member template 4337 specialization, but the enclosing 4338 classes have not all been explicitly 4339 specialized. */ 4340 tsk_invalid_expl_inst, /* An explicit instantiation containing 4341 template parameter lists. */ 4342 tsk_excessive_parms, /* A template declaration with too many 4343 template parameter lists. */ 4344 tsk_insufficient_parms, /* A template declaration with too few 4345 parameter lists. */ 4346 tsk_template, /* A template declaration. */ 4347 tsk_expl_spec, /* An explicit specialization. */ 4348 tsk_expl_inst /* An explicit instantiation. */ 4349} tmpl_spec_kind; 4350 4351/* The various kinds of access. BINFO_ACCESS depends on these being 4352 two bit quantities. The numerical values are important; they are 4353 used to initialize RTTI data structures, so changing them changes 4354 the ABI. */ 4355typedef enum access_kind { 4356 ak_none = 0, /* Inaccessible. */ 4357 ak_public = 1, /* Accessible, as a `public' thing. */ 4358 ak_protected = 2, /* Accessible, as a `protected' thing. */ 4359 ak_private = 3 /* Accessible, as a `private' thing. */ 4360} access_kind; 4361 4362/* The various kinds of special functions. If you add to this list, 4363 you should update special_function_p as well. */ 4364typedef enum special_function_kind { 4365 sfk_none = 0, /* Not a special function. This enumeral 4366 must have value zero; see 4367 special_function_p. */ 4368 sfk_constructor, /* A constructor. */ 4369 sfk_copy_constructor, /* A copy constructor. */ 4370 sfk_move_constructor, /* A move constructor. */ 4371 sfk_copy_assignment, /* A copy assignment operator. */ 4372 sfk_move_assignment, /* A move assignment operator. */ 4373 sfk_destructor, /* A destructor. */ 4374 sfk_complete_destructor, /* A destructor for complete objects. */ 4375 sfk_base_destructor, /* A destructor for base subobjects. */ 4376 sfk_deleting_destructor, /* A destructor for complete objects that 4377 deletes the object after it has been 4378 destroyed. */ 4379 sfk_conversion, /* A conversion operator. */ 4380 sfk_inheriting_constructor /* An inheriting constructor */ 4381} special_function_kind; 4382 4383/* The various kinds of linkage. From [basic.link], 4384 4385 A name is said to have linkage when it might denote the same 4386 object, reference, function, type, template, namespace or value 4387 as a name introduced in another scope: 4388 4389 -- When a name has external linkage, the entity it denotes can 4390 be referred to from scopes of other translation units or from 4391 other scopes of the same translation unit. 4392 4393 -- When a name has internal linkage, the entity it denotes can 4394 be referred to by names from other scopes in the same 4395 translation unit. 4396 4397 -- When a name has no linkage, the entity it denotes cannot be 4398 referred to by names from other scopes. */ 4399 4400typedef enum linkage_kind { 4401 lk_none, /* No linkage. */ 4402 lk_internal, /* Internal linkage. */ 4403 lk_external /* External linkage. */ 4404} linkage_kind; 4405 4406typedef enum duration_kind { 4407 dk_static, 4408 dk_thread, 4409 dk_auto, 4410 dk_dynamic 4411} duration_kind; 4412 4413/* Bitmask flags to control type substitution. */ 4414enum tsubst_flags { 4415 tf_none = 0, /* nothing special */ 4416 tf_error = 1 << 0, /* give error messages */ 4417 tf_warning = 1 << 1, /* give warnings too */ 4418 tf_ignore_bad_quals = 1 << 2, /* ignore bad cvr qualifiers */ 4419 tf_keep_type_decl = 1 << 3, /* retain typedef type decls 4420 (make_typename_type use) */ 4421 tf_ptrmem_ok = 1 << 4, /* pointers to member ok (internal 4422 instantiate_type use) */ 4423 tf_user = 1 << 5, /* found template must be a user template 4424 (lookup_template_class use) */ 4425 tf_conv = 1 << 6, /* We are determining what kind of 4426 conversion might be permissible, 4427 not actually performing the 4428 conversion. */ 4429 tf_decltype = 1 << 7, /* We are the operand of decltype. 4430 Used to implement the special rules 4431 for calls in decltype (5.2.2/11). */ 4432 tf_partial = 1 << 8, /* Doing initial explicit argument 4433 substitution in fn_type_unification. */ 4434 /* Convenient substitution flags combinations. */ 4435 tf_warning_or_error = tf_warning | tf_error 4436}; 4437 4438/* This type is used for parameters and variables which hold 4439 combinations of the flags in enum tsubst_flags. */ 4440typedef int tsubst_flags_t; 4441 4442/* The kind of checking we can do looking in a class hierarchy. */ 4443enum base_access_flags { 4444 ba_any = 0, /* Do not check access, allow an ambiguous base, 4445 prefer a non-virtual base */ 4446 ba_unique = 1 << 0, /* Must be a unique base. */ 4447 ba_check_bit = 1 << 1, /* Check access. */ 4448 ba_check = ba_unique | ba_check_bit, 4449 ba_ignore_scope = 1 << 2 /* Ignore access allowed by local scope. */ 4450}; 4451 4452/* This type is used for parameters and variables which hold 4453 combinations of the flags in enum base_access_flags. */ 4454typedef int base_access; 4455 4456/* The various kinds of access check during parsing. */ 4457typedef enum deferring_kind { 4458 dk_no_deferred = 0, /* Check access immediately */ 4459 dk_deferred = 1, /* Deferred check */ 4460 dk_no_check = 2 /* No access check */ 4461} deferring_kind; 4462 4463/* The kind of base we can find, looking in a class hierarchy. 4464 Values <0 indicate we failed. */ 4465typedef enum base_kind { 4466 bk_inaccessible = -3, /* The base is inaccessible */ 4467 bk_ambig = -2, /* The base is ambiguous */ 4468 bk_not_base = -1, /* It is not a base */ 4469 bk_same_type = 0, /* It is the same type */ 4470 bk_proper_base = 1, /* It is a proper base */ 4471 bk_via_virtual = 2 /* It is a proper base, but via a virtual 4472 path. This might not be the canonical 4473 binfo. */ 4474} base_kind; 4475 4476/* Node for "pointer to (virtual) function". 4477 This may be distinct from ptr_type_node so gdb can distinguish them. */ 4478#define vfunc_ptr_type_node vtable_entry_type 4479 4480 4481/* For building calls to `delete'. */ 4482extern GTY(()) tree integer_two_node; 4483 4484/* The number of function bodies which we are currently processing. 4485 (Zero if we are at namespace scope, one inside the body of a 4486 function, two inside the body of a function in a local class, etc.) */ 4487extern int function_depth; 4488 4489/* Nonzero if we are inside eq_specializations, which affects comparison of 4490 PARM_DECLs in cp_tree_equal. */ 4491extern int comparing_specializations; 4492 4493/* In parser.c. */ 4494 4495/* Nonzero if we are parsing an unevaluated operand: an operand to 4496 sizeof, typeof, or alignof. This is a count since operands to 4497 sizeof can be nested. */ 4498 4499extern int cp_unevaluated_operand; 4500 4501/* in pt.c */ 4502 4503/* These values are used for the `STRICT' parameter to type_unification and 4504 fn_type_unification. Their meanings are described with the 4505 documentation for fn_type_unification. */ 4506 4507typedef enum unification_kind_t { 4508 DEDUCE_CALL, 4509 DEDUCE_CONV, 4510 DEDUCE_EXACT 4511} unification_kind_t; 4512 4513/* in class.c */ 4514 4515extern int current_class_depth; 4516 4517/* An array of all local classes present in this translation unit, in 4518 declaration order. */ 4519extern GTY(()) vec<tree, va_gc> *local_classes; 4520 4521/* Here's where we control how name mangling takes place. */ 4522 4523/* Cannot use '$' up front, because this confuses gdb 4524 (names beginning with '$' are gdb-local identifiers). 4525 4526 Note that all forms in which the '$' is significant are long enough 4527 for direct indexing (meaning that if we know there is a '$' 4528 at a particular location, we can index into the string at 4529 any other location that provides distinguishing characters). */ 4530 4531/* Define NO_DOT_IN_LABEL in your favorite tm file if your assembler 4532 doesn't allow '.' in symbol names. */ 4533#ifndef NO_DOT_IN_LABEL 4534 4535#define JOINER '.' 4536 4537#define AUTO_TEMP_NAME "_.tmp_" 4538#define VFIELD_BASE ".vf" 4539#define VFIELD_NAME "_vptr." 4540#define VFIELD_NAME_FORMAT "_vptr.%s" 4541 4542#else /* NO_DOT_IN_LABEL */ 4543 4544#ifndef NO_DOLLAR_IN_LABEL 4545 4546#define JOINER '$' 4547 4548#define AUTO_TEMP_NAME "_$tmp_" 4549#define VFIELD_BASE "$vf" 4550#define VFIELD_NAME "_vptr$" 4551#define VFIELD_NAME_FORMAT "_vptr$%s" 4552 4553#else /* NO_DOLLAR_IN_LABEL */ 4554 4555#define AUTO_TEMP_NAME "__tmp_" 4556#define TEMP_NAME_P(ID_NODE) \ 4557 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, \ 4558 sizeof (AUTO_TEMP_NAME) - 1)) 4559#define VTABLE_NAME "__vt_" 4560#define VTABLE_NAME_P(ID_NODE) \ 4561 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VTABLE_NAME, \ 4562 sizeof (VTABLE_NAME) - 1)) 4563#define VFIELD_BASE "__vfb" 4564#define VFIELD_NAME "__vptr_" 4565#define VFIELD_NAME_P(ID_NODE) \ 4566 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, \ 4567 sizeof (VFIELD_NAME) - 1)) 4568#define VFIELD_NAME_FORMAT "__vptr_%s" 4569 4570#endif /* NO_DOLLAR_IN_LABEL */ 4571#endif /* NO_DOT_IN_LABEL */ 4572 4573#define THIS_NAME "this" 4574 4575#define IN_CHARGE_NAME "__in_chrg" 4576 4577#define VTBL_PTR_TYPE "__vtbl_ptr_type" 4578#define VTABLE_DELTA_NAME "__delta" 4579#define VTABLE_PFN_NAME "__pfn" 4580 4581#define LAMBDANAME_PREFIX "__lambda" 4582#define LAMBDANAME_FORMAT LAMBDANAME_PREFIX "%d" 4583 4584#define UDLIT_OP_ANSI_PREFIX "operator\"\"" 4585#define UDLIT_OP_ANSI_FORMAT UDLIT_OP_ANSI_PREFIX "%s" 4586#define UDLIT_OP_MANGLED_PREFIX "li" 4587#define UDLIT_OP_MANGLED_FORMAT UDLIT_OP_MANGLED_PREFIX "%s" 4588#define UDLIT_OPER_P(ID_NODE) \ 4589 (!strncmp (IDENTIFIER_POINTER (ID_NODE), \ 4590 UDLIT_OP_ANSI_PREFIX, \ 4591 sizeof (UDLIT_OP_ANSI_PREFIX) - 1)) 4592#define UDLIT_OP_SUFFIX(ID_NODE) \ 4593 (IDENTIFIER_POINTER (ID_NODE) + sizeof (UDLIT_OP_ANSI_PREFIX) - 1) 4594 4595#if !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) 4596 4597#define VTABLE_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == 'v' \ 4598 && IDENTIFIER_POINTER (ID_NODE)[2] == 't' \ 4599 && IDENTIFIER_POINTER (ID_NODE)[3] == JOINER) 4600 4601#define TEMP_NAME_P(ID_NODE) \ 4602 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, sizeof (AUTO_TEMP_NAME)-1)) 4603#define VFIELD_NAME_P(ID_NODE) \ 4604 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, sizeof(VFIELD_NAME)-1)) 4605 4606#endif /* !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) */ 4607 4608 4609/* Nonzero if we're done parsing and into end-of-file activities. */ 4610 4611extern int at_eof; 4612 4613/* True if note_mangling_alias should enqueue mangling aliases for 4614 later generation, rather than emitting them right away. */ 4615 4616extern bool defer_mangling_aliases; 4617 4618/* A list of namespace-scope objects which have constructors or 4619 destructors which reside in the global scope. The decl is stored 4620 in the TREE_VALUE slot and the initializer is stored in the 4621 TREE_PURPOSE slot. */ 4622extern GTY(()) tree static_aggregates; 4623/* Likewise, for thread local storage. */ 4624extern GTY(()) tree tls_aggregates; 4625 4626enum overload_flags { NO_SPECIAL = 0, DTOR_FLAG, TYPENAME_FLAG }; 4627 4628/* These are uses as bits in flags passed to various functions to 4629 control their behavior. Despite the LOOKUP_ prefix, many of these 4630 do not control name lookup. ??? Functions using these flags should 4631 probably be modified to accept explicit boolean flags for the 4632 behaviors relevant to them. */ 4633/* Check for access violations. */ 4634#define LOOKUP_PROTECT (1 << 0) 4635#define LOOKUP_NORMAL (LOOKUP_PROTECT) 4636/* Even if the function found by lookup is a virtual function, it 4637 should be called directly. */ 4638#define LOOKUP_NONVIRTUAL (1 << 1) 4639/* Non-converting (i.e., "explicit") constructors are not tried. This flag 4640 indicates that we are not performing direct-initialization. */ 4641#define LOOKUP_ONLYCONVERTING (1 << 2) 4642#define LOOKUP_IMPLICIT (LOOKUP_NORMAL | LOOKUP_ONLYCONVERTING) 4643/* If a temporary is created, it should be created so that it lives 4644 as long as the current variable bindings; otherwise it only lives 4645 until the end of the complete-expression. It also forces 4646 direct-initialization in cases where other parts of the compiler 4647 have already generated a temporary, such as reference 4648 initialization and the catch parameter. */ 4649#define DIRECT_BIND (1 << 3) 4650/* We're performing a user-defined conversion, so more user-defined 4651 conversions are not permitted (only built-in conversions). */ 4652#define LOOKUP_NO_CONVERSION (1 << 4) 4653/* The user has explicitly called a destructor. (Therefore, we do 4654 not need to check that the object is non-NULL before calling the 4655 destructor.) */ 4656#define LOOKUP_DESTRUCTOR (1 << 5) 4657/* Do not permit references to bind to temporaries. */ 4658#define LOOKUP_NO_TEMP_BIND (1 << 6) 4659/* Do not accept objects, and possibly namespaces. */ 4660#define LOOKUP_PREFER_TYPES (1 << 7) 4661/* Do not accept objects, and possibly types. */ 4662#define LOOKUP_PREFER_NAMESPACES (1 << 8) 4663/* Accept types or namespaces. */ 4664#define LOOKUP_PREFER_BOTH (LOOKUP_PREFER_TYPES | LOOKUP_PREFER_NAMESPACES) 4665/* Return friend declarations and un-declared builtin functions. 4666 (Normally, these entities are registered in the symbol table, but 4667 not found by lookup.) */ 4668#define LOOKUP_HIDDEN (LOOKUP_PREFER_NAMESPACES << 1) 4669/* Prefer that the lvalue be treated as an rvalue. */ 4670#define LOOKUP_PREFER_RVALUE (LOOKUP_HIDDEN << 1) 4671/* We're inside an init-list, so narrowing conversions are ill-formed. */ 4672#define LOOKUP_NO_NARROWING (LOOKUP_PREFER_RVALUE << 1) 4673/* We're looking up a constructor for list-initialization. */ 4674#define LOOKUP_LIST_INIT_CTOR (LOOKUP_NO_NARROWING << 1) 4675/* This is the first parameter of a copy constructor. */ 4676#define LOOKUP_COPY_PARM (LOOKUP_LIST_INIT_CTOR << 1) 4677/* We only want to consider list constructors. */ 4678#define LOOKUP_LIST_ONLY (LOOKUP_COPY_PARM << 1) 4679/* Return after determining which function to call and checking access. 4680 Used by sythesized_method_walk to determine which functions will 4681 be called to initialize subobjects, in order to determine exception 4682 specification and possible implicit delete. 4683 This is kind of a hack, but exiting early avoids problems with trying 4684 to perform argument conversions when the class isn't complete yet. */ 4685#define LOOKUP_SPECULATIVE (LOOKUP_LIST_ONLY << 1) 4686/* Used by calls from defaulted functions to limit the overload set to avoid 4687 cycles trying to declare them (core issue 1092). */ 4688#define LOOKUP_DEFAULTED (LOOKUP_SPECULATIVE << 1) 4689/* Used in calls to store_init_value to suppress its usual call to 4690 digest_init. */ 4691#define LOOKUP_ALREADY_DIGESTED (LOOKUP_DEFAULTED << 1) 4692/* An instantiation with explicit template arguments. */ 4693#define LOOKUP_EXPLICIT_TMPL_ARGS (LOOKUP_ALREADY_DIGESTED << 1) 4694/* Like LOOKUP_NO_TEMP_BIND, but also prevent binding to xvalues. */ 4695#define LOOKUP_NO_RVAL_BIND (LOOKUP_EXPLICIT_TMPL_ARGS << 1) 4696/* Used by case_conversion to disregard non-integral conversions. */ 4697#define LOOKUP_NO_NON_INTEGRAL (LOOKUP_NO_RVAL_BIND << 1) 4698/* Used for delegating constructors in order to diagnose self-delegation. */ 4699#define LOOKUP_DELEGATING_CONS (LOOKUP_NO_NON_INTEGRAL << 1) 4700 4701#define LOOKUP_NAMESPACES_ONLY(F) \ 4702 (((F) & LOOKUP_PREFER_NAMESPACES) && !((F) & LOOKUP_PREFER_TYPES)) 4703#define LOOKUP_TYPES_ONLY(F) \ 4704 (!((F) & LOOKUP_PREFER_NAMESPACES) && ((F) & LOOKUP_PREFER_TYPES)) 4705#define LOOKUP_QUALIFIERS_ONLY(F) ((F) & LOOKUP_PREFER_BOTH) 4706 4707 4708/* These flags are used by the conversion code. 4709 CONV_IMPLICIT : Perform implicit conversions (standard and user-defined). 4710 CONV_STATIC : Perform the explicit conversions for static_cast. 4711 CONV_CONST : Perform the explicit conversions for const_cast. 4712 CONV_REINTERPRET: Perform the explicit conversions for reinterpret_cast. 4713 CONV_PRIVATE : Perform upcasts to private bases. 4714 CONV_FORCE_TEMP : Require a new temporary when converting to the same 4715 aggregate type. */ 4716 4717#define CONV_IMPLICIT 1 4718#define CONV_STATIC 2 4719#define CONV_CONST 4 4720#define CONV_REINTERPRET 8 4721#define CONV_PRIVATE 16 4722/* #define CONV_NONCONVERTING 32 */ 4723#define CONV_FORCE_TEMP 64 4724#define CONV_OLD_CONVERT (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \ 4725 | CONV_REINTERPRET) 4726#define CONV_C_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \ 4727 | CONV_REINTERPRET | CONV_PRIVATE | CONV_FORCE_TEMP) 4728 4729/* Used by build_expr_type_conversion to indicate which types are 4730 acceptable as arguments to the expression under consideration. */ 4731 4732#define WANT_INT 1 /* integer types, including bool */ 4733#define WANT_FLOAT 2 /* floating point types */ 4734#define WANT_ENUM 4 /* enumerated types */ 4735#define WANT_POINTER 8 /* pointer types */ 4736#define WANT_NULL 16 /* null pointer constant */ 4737#define WANT_VECTOR_OR_COMPLEX 32 /* vector or complex types */ 4738#define WANT_ARITH (WANT_INT | WANT_FLOAT | WANT_VECTOR_OR_COMPLEX) 4739 4740/* Used with comptypes, and related functions, to guide type 4741 comparison. */ 4742 4743#define COMPARE_STRICT 0 /* Just check if the types are the 4744 same. */ 4745#define COMPARE_BASE 1 /* Check to see if the second type is 4746 derived from the first. */ 4747#define COMPARE_DERIVED 2 /* Like COMPARE_BASE, but in 4748 reverse. */ 4749#define COMPARE_REDECLARATION 4 /* The comparison is being done when 4750 another declaration of an existing 4751 entity is seen. */ 4752#define COMPARE_STRUCTURAL 8 /* The comparison is intended to be 4753 structural. The actual comparison 4754 will be identical to 4755 COMPARE_STRICT. */ 4756 4757/* Used with push_overloaded_decl. */ 4758#define PUSH_GLOBAL 0 /* Push the DECL into namespace scope, 4759 regardless of the current scope. */ 4760#define PUSH_LOCAL 1 /* Push the DECL into the current 4761 scope. */ 4762#define PUSH_USING 2 /* We are pushing this DECL as the 4763 result of a using declaration. */ 4764 4765/* Used with start function. */ 4766#define SF_DEFAULT 0 /* No flags. */ 4767#define SF_PRE_PARSED 1 /* The function declaration has 4768 already been parsed. */ 4769#define SF_INCLASS_INLINE 2 /* The function is an inline, defined 4770 in the class body. */ 4771 4772/* Used with start_decl's initialized parameter. */ 4773#define SD_UNINITIALIZED 0 4774#define SD_INITIALIZED 1 4775#define SD_DEFAULTED 2 4776#define SD_DELETED 3 4777 4778/* Returns nonzero iff TYPE1 and TYPE2 are the same type, or if TYPE2 4779 is derived from TYPE1, or if TYPE2 is a pointer (reference) to a 4780 class derived from the type pointed to (referred to) by TYPE1. */ 4781#define same_or_base_type_p(TYPE1, TYPE2) \ 4782 comptypes ((TYPE1), (TYPE2), COMPARE_BASE) 4783 4784/* These macros are used to access a TEMPLATE_PARM_INDEX. */ 4785#define TEMPLATE_PARM_INDEX_CAST(NODE) \ 4786 ((template_parm_index*)TEMPLATE_PARM_INDEX_CHECK (NODE)) 4787#define TEMPLATE_PARM_IDX(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->index) 4788#define TEMPLATE_PARM_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->level) 4789#define TEMPLATE_PARM_DESCENDANTS(NODE) (TREE_CHAIN (NODE)) 4790#define TEMPLATE_PARM_ORIG_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->orig_level) 4791#define TEMPLATE_PARM_DECL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->decl) 4792#define TEMPLATE_PARM_PARAMETER_PACK(NODE) \ 4793 (TREE_LANG_FLAG_0 (TEMPLATE_PARM_INDEX_CHECK (NODE))) 4794 4795/* These macros are for accessing the fields of TEMPLATE_TYPE_PARM, 4796 TEMPLATE_TEMPLATE_PARM and BOUND_TEMPLATE_TEMPLATE_PARM nodes. */ 4797#define TEMPLATE_TYPE_PARM_INDEX(NODE) \ 4798 (TYPE_VALUES_RAW (TREE_CHECK3 ((NODE), TEMPLATE_TYPE_PARM, \ 4799 TEMPLATE_TEMPLATE_PARM, \ 4800 BOUND_TEMPLATE_TEMPLATE_PARM))) 4801#define TEMPLATE_TYPE_IDX(NODE) \ 4802 (TEMPLATE_PARM_IDX (TEMPLATE_TYPE_PARM_INDEX (NODE))) 4803#define TEMPLATE_TYPE_LEVEL(NODE) \ 4804 (TEMPLATE_PARM_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE))) 4805#define TEMPLATE_TYPE_ORIG_LEVEL(NODE) \ 4806 (TEMPLATE_PARM_ORIG_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE))) 4807#define TEMPLATE_TYPE_DECL(NODE) \ 4808 (TEMPLATE_PARM_DECL (TEMPLATE_TYPE_PARM_INDEX (NODE))) 4809#define TEMPLATE_TYPE_PARAMETER_PACK(NODE) \ 4810 (TEMPLATE_PARM_PARAMETER_PACK (TEMPLATE_TYPE_PARM_INDEX (NODE))) 4811 4812/* True iff this TEMPLATE_TYPE_PARM represents decltype(auto). */ 4813#define AUTO_IS_DECLTYPE(NODE) \ 4814 (TYPE_LANG_FLAG_5 (TEMPLATE_TYPE_PARM_CHECK (NODE))) 4815 4816/* These constants can used as bit flags in the process of tree formatting. 4817 4818 TFF_PLAIN_IDENTIFIER: unqualified part of a name. 4819 TFF_SCOPE: include the class and namespace scope of the name. 4820 TFF_CHASE_TYPEDEF: print the original type-id instead of the typedef-name. 4821 TFF_DECL_SPECIFIERS: print decl-specifiers. 4822 TFF_CLASS_KEY_OR_ENUM: precede a class-type name (resp. enum name) with 4823 a class-key (resp. `enum'). 4824 TFF_RETURN_TYPE: include function return type. 4825 TFF_FUNCTION_DEFAULT_ARGUMENTS: include function default parameter values. 4826 TFF_EXCEPTION_SPECIFICATION: show function exception specification. 4827 TFF_TEMPLATE_HEADER: show the template<...> header in a 4828 template-declaration. 4829 TFF_TEMPLATE_NAME: show only template-name. 4830 TFF_EXPR_IN_PARENS: parenthesize expressions. 4831 TFF_NO_FUNCTION_ARGUMENTS: don't show function arguments. 4832 TFF_UNQUALIFIED_NAME: do not print the qualifying scope of the 4833 top-level entity. 4834 TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS: do not omit template arguments 4835 identical to their defaults. 4836 TFF_NO_TEMPLATE_BINDINGS: do not print information about the template 4837 arguments for a function template specialization. 4838 TFF_POINTER: we are printing a pointer type. */ 4839 4840#define TFF_PLAIN_IDENTIFIER (0) 4841#define TFF_SCOPE (1) 4842#define TFF_CHASE_TYPEDEF (1 << 1) 4843#define TFF_DECL_SPECIFIERS (1 << 2) 4844#define TFF_CLASS_KEY_OR_ENUM (1 << 3) 4845#define TFF_RETURN_TYPE (1 << 4) 4846#define TFF_FUNCTION_DEFAULT_ARGUMENTS (1 << 5) 4847#define TFF_EXCEPTION_SPECIFICATION (1 << 6) 4848#define TFF_TEMPLATE_HEADER (1 << 7) 4849#define TFF_TEMPLATE_NAME (1 << 8) 4850#define TFF_EXPR_IN_PARENS (1 << 9) 4851#define TFF_NO_FUNCTION_ARGUMENTS (1 << 10) 4852#define TFF_UNQUALIFIED_NAME (1 << 11) 4853#define TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS (1 << 12) 4854#define TFF_NO_TEMPLATE_BINDINGS (1 << 13) 4855#define TFF_POINTER (1 << 14) 4856 4857/* Returns the TEMPLATE_DECL associated to a TEMPLATE_TEMPLATE_PARM 4858 node. */ 4859#define TEMPLATE_TEMPLATE_PARM_TEMPLATE_DECL(NODE) \ 4860 ((TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM) \ 4861 ? TYPE_TI_TEMPLATE (NODE) \ 4862 : TYPE_NAME (NODE)) 4863 4864/* in lex.c */ 4865 4866extern void init_reswords (void); 4867 4868typedef struct GTY(()) operator_name_info_t { 4869 /* The IDENTIFIER_NODE for the operator. */ 4870 tree identifier; 4871 /* The name of the operator. */ 4872 const char *name; 4873 /* The mangled name of the operator. */ 4874 const char *mangled_name; 4875 /* The arity of the operator. */ 4876 int arity; 4877} operator_name_info_t; 4878 4879/* A mapping from tree codes to operator name information. */ 4880extern GTY(()) operator_name_info_t operator_name_info 4881 [(int) MAX_TREE_CODES]; 4882/* Similar, but for assignment operators. */ 4883extern GTY(()) operator_name_info_t assignment_operator_name_info 4884 [(int) MAX_TREE_CODES]; 4885 4886/* A type-qualifier, or bitmask therefore, using the TYPE_QUAL 4887 constants. */ 4888 4889typedef int cp_cv_quals; 4890 4891/* Non-static member functions have an optional virt-specifier-seq. 4892 There is a VIRT_SPEC value for each virt-specifier. 4893 They can be combined by bitwise-or to form the complete set of 4894 virt-specifiers for a member function. */ 4895enum virt_specifier 4896 { 4897 VIRT_SPEC_UNSPECIFIED = 0x0, 4898 VIRT_SPEC_FINAL = 0x1, 4899 VIRT_SPEC_OVERRIDE = 0x2 4900 }; 4901 4902/* A type-qualifier, or bitmask therefore, using the VIRT_SPEC 4903 constants. */ 4904 4905typedef int cp_virt_specifiers; 4906 4907/* Wherever there is a function-cv-qual, there could also be a ref-qualifier: 4908 4909 [dcl.fct] 4910 The return type, the parameter-type-list, the ref-qualifier, and 4911 the cv-qualifier-seq, but not the default arguments or the exception 4912 specification, are part of the function type. 4913 4914 REF_QUAL_NONE Ordinary member function with no ref-qualifier 4915 REF_QUAL_LVALUE Member function with the &-ref-qualifier 4916 REF_QUAL_RVALUE Member function with the &&-ref-qualifier */ 4917 4918enum cp_ref_qualifier { 4919 REF_QUAL_NONE = 0, 4920 REF_QUAL_LVALUE = 1, 4921 REF_QUAL_RVALUE = 2 4922}; 4923 4924/* A storage class. */ 4925 4926typedef enum cp_storage_class { 4927 /* sc_none must be zero so that zeroing a cp_decl_specifier_seq 4928 sets the storage_class field to sc_none. */ 4929 sc_none = 0, 4930 sc_auto, 4931 sc_register, 4932 sc_static, 4933 sc_extern, 4934 sc_mutable 4935} cp_storage_class; 4936 4937/* An individual decl-specifier. This is used to index the array of 4938 locations for the declspecs in struct cp_decl_specifier_seq 4939 below. */ 4940 4941typedef enum cp_decl_spec { 4942 ds_first, 4943 ds_signed = ds_first, 4944 ds_unsigned, 4945 ds_short, 4946 ds_long, 4947 ds_const, 4948 ds_volatile, 4949 ds_restrict, 4950 ds_inline, 4951 ds_virtual, 4952 ds_explicit, 4953 ds_friend, 4954 ds_typedef, 4955 ds_alias, 4956 ds_constexpr, 4957 ds_complex, 4958 ds_thread, 4959 ds_type_spec, 4960 ds_redefined_builtin_type_spec, 4961 ds_attribute, 4962 ds_std_attribute, 4963 ds_storage_class, 4964 ds_long_long, 4965 ds_last /* This enumerator must always be the last one. */ 4966} cp_decl_spec; 4967 4968/* A decl-specifier-seq. */ 4969 4970typedef struct cp_decl_specifier_seq { 4971 /* An array of locations for the declaration sepecifiers, indexed by 4972 enum cp_decl_spec_word. */ 4973 source_location locations[ds_last]; 4974 /* The primary type, if any, given by the decl-specifier-seq. 4975 Modifiers, like "short", "const", and "unsigned" are not 4976 reflected here. This field will be a TYPE, unless a typedef-name 4977 was used, in which case it will be a TYPE_DECL. */ 4978 tree type; 4979 /* The attributes, if any, provided with the specifier sequence. */ 4980 tree attributes; 4981 /* The c++11 attributes that follows the type specifier. */ 4982 tree std_attributes; 4983 /* If non-NULL, a built-in type that the user attempted to redefine 4984 to some other type. */ 4985 tree redefined_builtin_type; 4986 /* The storage class specified -- or sc_none if no storage class was 4987 explicitly specified. */ 4988 cp_storage_class storage_class; 4989 /* For the __intN declspec, this stores the index into the int_n_* arrays. */ 4990 int int_n_idx; 4991 /* True iff TYPE_SPEC defines a class or enum. */ 4992 BOOL_BITFIELD type_definition_p : 1; 4993 /* True iff multiple types were (erroneously) specified for this 4994 decl-specifier-seq. */ 4995 BOOL_BITFIELD multiple_types_p : 1; 4996 /* True iff multiple storage classes were (erroneously) specified 4997 for this decl-specifier-seq or a combination of a storage class 4998 with a typedef specifier. */ 4999 BOOL_BITFIELD conflicting_specifiers_p : 1; 5000 /* True iff at least one decl-specifier was found. */ 5001 BOOL_BITFIELD any_specifiers_p : 1; 5002 /* True iff at least one type-specifier was found. */ 5003 BOOL_BITFIELD any_type_specifiers_p : 1; 5004 /* True iff "int" was explicitly provided. */ 5005 BOOL_BITFIELD explicit_int_p : 1; 5006 /* True iff "__intN" was explicitly provided. */ 5007 BOOL_BITFIELD explicit_intN_p : 1; 5008 /* True iff "char" was explicitly provided. */ 5009 BOOL_BITFIELD explicit_char_p : 1; 5010 /* True iff ds_thread is set for __thread, not thread_local. */ 5011 BOOL_BITFIELD gnu_thread_keyword_p : 1; 5012 /* True iff the type is a decltype. */ 5013 BOOL_BITFIELD decltype_p : 1; 5014} cp_decl_specifier_seq; 5015 5016/* The various kinds of declarators. */ 5017 5018typedef enum cp_declarator_kind { 5019 cdk_id, 5020 cdk_function, 5021 cdk_array, 5022 cdk_pointer, 5023 cdk_reference, 5024 cdk_ptrmem, 5025 cdk_error 5026} cp_declarator_kind; 5027 5028/* A declarator. */ 5029 5030typedef struct cp_declarator cp_declarator; 5031 5032typedef struct cp_parameter_declarator cp_parameter_declarator; 5033 5034/* A parameter, before it has been semantically analyzed. */ 5035struct cp_parameter_declarator { 5036 /* The next parameter, or NULL_TREE if none. */ 5037 cp_parameter_declarator *next; 5038 /* The decl-specifiers-seq for the parameter. */ 5039 cp_decl_specifier_seq decl_specifiers; 5040 /* The declarator for the parameter. */ 5041 cp_declarator *declarator; 5042 /* The default-argument expression, or NULL_TREE, if none. */ 5043 tree default_argument; 5044 /* True iff this is the first parameter in the list and the 5045 parameter sequence ends with an ellipsis. */ 5046 bool ellipsis_p; 5047}; 5048 5049/* A declarator. */ 5050struct cp_declarator { 5051 /* The kind of declarator. */ 5052 ENUM_BITFIELD (cp_declarator_kind) kind : 4; 5053 /* Whether we parsed an ellipsis (`...') just before the declarator, 5054 to indicate this is a parameter pack. */ 5055 BOOL_BITFIELD parameter_pack_p : 1; 5056 location_t id_loc; /* Currently only set for cdk_id and cdk_function. */ 5057 /* GNU Attributes that apply to this declarator. If the declarator 5058 is a pointer or a reference, these attribute apply to the type 5059 pointed to. */ 5060 tree attributes; 5061 /* Standard C++11 attributes that apply to this declarator. If the 5062 declarator is a pointer or a reference, these attributes apply 5063 to the pointer, rather than to the type pointed to. */ 5064 tree std_attributes; 5065 /* For all but cdk_id and cdk_error, the contained declarator. For 5066 cdk_id and cdk_error, guaranteed to be NULL. */ 5067 cp_declarator *declarator; 5068 union { 5069 /* For identifiers. */ 5070 struct { 5071 /* If non-NULL, the qualifying scope (a NAMESPACE_DECL or 5072 *_TYPE) for this identifier. */ 5073 tree qualifying_scope; 5074 /* The unqualified name of the entity -- an IDENTIFIER_NODE, 5075 BIT_NOT_EXPR, or TEMPLATE_ID_EXPR. */ 5076 tree unqualified_name; 5077 /* If this is the name of a function, what kind of special 5078 function (if any). */ 5079 special_function_kind sfk; 5080 } id; 5081 /* For functions. */ 5082 struct { 5083 /* The parameters to the function as a TREE_LIST of decl/default. */ 5084 tree parameters; 5085 /* The cv-qualifiers for the function. */ 5086 cp_cv_quals qualifiers; 5087 /* The virt-specifiers for the function. */ 5088 cp_virt_specifiers virt_specifiers; 5089 /* The ref-qualifier for the function. */ 5090 cp_ref_qualifier ref_qualifier; 5091 /* The exception-specification for the function. */ 5092 tree exception_specification; 5093 /* The late-specified return type, if any. */ 5094 tree late_return_type; 5095 } function; 5096 /* For arrays. */ 5097 struct { 5098 /* The bounds to the array. */ 5099 tree bounds; 5100 } array; 5101 /* For cdk_pointer and cdk_ptrmem. */ 5102 struct { 5103 /* The cv-qualifiers for the pointer. */ 5104 cp_cv_quals qualifiers; 5105 /* For cdk_ptrmem, the class type containing the member. */ 5106 tree class_type; 5107 } pointer; 5108 /* For cdk_reference */ 5109 struct { 5110 /* The cv-qualifiers for the reference. These qualifiers are 5111 only used to diagnose ill-formed code. */ 5112 cp_cv_quals qualifiers; 5113 /* Whether this is an rvalue reference */ 5114 bool rvalue_ref; 5115 } reference; 5116 } u; 5117}; 5118 5119/* A level of template instantiation. */ 5120struct GTY((chain_next ("%h.next"))) tinst_level { 5121 /* The immediately deeper level in the chain. */ 5122 struct tinst_level *next; 5123 5124 /* The original node. Can be either a DECL (for a function or static 5125 data member) or a TYPE (for a class), depending on what we were 5126 asked to instantiate. */ 5127 tree decl; 5128 5129 /* The location where the template is instantiated. */ 5130 location_t locus; 5131 5132 /* errorcount+sorrycount when we pushed this level. */ 5133 int errors; 5134 5135 /* True if the location is in a system header. */ 5136 bool in_system_header_p; 5137}; 5138 5139bool decl_spec_seq_has_spec_p (const cp_decl_specifier_seq *, cp_decl_spec); 5140 5141/* Return the type of the `this' parameter of FNTYPE. */ 5142 5143inline tree 5144type_of_this_parm (const_tree fntype) 5145{ 5146 function_args_iterator iter; 5147 gcc_assert (TREE_CODE (fntype) == METHOD_TYPE); 5148 function_args_iter_init (&iter, fntype); 5149 return function_args_iter_cond (&iter); 5150} 5151 5152/* Return the class of the `this' parameter of FNTYPE. */ 5153 5154inline tree 5155class_of_this_parm (const_tree fntype) 5156{ 5157 return TREE_TYPE (type_of_this_parm (fntype)); 5158} 5159 5160/* True if T designates a variable template declaration. */ 5161inline bool 5162variable_template_p (tree t) 5163{ 5164 if (TREE_CODE (t) != TEMPLATE_DECL) 5165 return false; 5166 if (!PRIMARY_TEMPLATE_P (t)) 5167 return false; 5168 if (tree r = DECL_TEMPLATE_RESULT (t)) 5169 return VAR_P (r); 5170 return false; 5171} 5172 5173/* A parameter list indicating for a function with no parameters, 5174 e.g "int f(void)". */ 5175extern cp_parameter_declarator *no_parameters; 5176 5177/* True if we saw "#pragma GCC java_exceptions". */ 5178extern bool pragma_java_exceptions; 5179 5180/* in call.c */ 5181extern bool check_dtor_name (tree, tree); 5182bool magic_varargs_p (tree); 5183 5184extern tree build_conditional_expr (location_t, tree, tree, tree, 5185 tsubst_flags_t); 5186extern tree build_addr_func (tree, tsubst_flags_t); 5187extern void set_flags_from_callee (tree); 5188extern tree build_call_a (tree, int, tree*); 5189extern tree build_call_n (tree, int, ...); 5190extern bool null_ptr_cst_p (tree); 5191extern bool null_member_pointer_value_p (tree); 5192extern bool sufficient_parms_p (const_tree); 5193extern tree type_decays_to (tree); 5194extern tree build_user_type_conversion (tree, tree, int, 5195 tsubst_flags_t); 5196extern tree build_new_function_call (tree, vec<tree, va_gc> **, bool, 5197 tsubst_flags_t); 5198extern tree build_operator_new_call (tree, vec<tree, va_gc> **, tree *, 5199 tree *, tree, tree *, 5200 tsubst_flags_t); 5201extern tree build_new_method_call (tree, tree, vec<tree, va_gc> **, 5202 tree, int, tree *, 5203 tsubst_flags_t); 5204extern tree build_special_member_call (tree, tree, vec<tree, va_gc> **, 5205 tree, int, tsubst_flags_t); 5206extern tree build_new_op (location_t, enum tree_code, 5207 int, tree, tree, tree, tree *, 5208 tsubst_flags_t); 5209extern tree build_op_call (tree, vec<tree, va_gc> **, 5210 tsubst_flags_t); 5211extern bool non_placement_deallocation_fn_p (tree); 5212extern tree build_op_delete_call (enum tree_code, tree, tree, 5213 bool, tree, tree, 5214 tsubst_flags_t); 5215extern bool can_convert (tree, tree, tsubst_flags_t); 5216extern bool can_convert_standard (tree, tree, tsubst_flags_t); 5217extern bool can_convert_arg (tree, tree, tree, int, 5218 tsubst_flags_t); 5219extern bool can_convert_arg_bad (tree, tree, tree, int, 5220 tsubst_flags_t); 5221extern bool enforce_access (tree, tree, tree, 5222 tsubst_flags_t); 5223extern void push_defarg_context (tree); 5224extern void pop_defarg_context (void); 5225extern tree convert_default_arg (tree, tree, tree, int, 5226 tsubst_flags_t); 5227extern tree convert_arg_to_ellipsis (tree, tsubst_flags_t); 5228extern tree build_x_va_arg (source_location, tree, tree); 5229extern tree cxx_type_promotes_to (tree); 5230extern tree type_passed_as (tree); 5231extern tree convert_for_arg_passing (tree, tree, tsubst_flags_t); 5232extern bool is_properly_derived_from (tree, tree); 5233extern tree initialize_reference (tree, tree, int, 5234 tsubst_flags_t); 5235extern tree extend_ref_init_temps (tree, tree, vec<tree, va_gc>**); 5236extern tree make_temporary_var_for_ref_to_temp (tree, tree); 5237extern bool type_has_extended_temps (tree); 5238extern tree strip_top_quals (tree); 5239extern bool reference_related_p (tree, tree); 5240extern int remaining_arguments (tree); 5241extern tree perform_implicit_conversion (tree, tree, tsubst_flags_t); 5242extern tree perform_implicit_conversion_flags (tree, tree, tsubst_flags_t, int); 5243extern tree build_integral_nontype_arg_conv (tree, tree, tsubst_flags_t); 5244extern tree perform_direct_initialization_if_possible (tree, tree, bool, 5245 tsubst_flags_t); 5246extern tree in_charge_arg_for_name (tree); 5247extern tree build_cxx_call (tree, int, tree *, 5248 tsubst_flags_t); 5249extern bool is_std_init_list (tree); 5250extern bool is_list_ctor (tree); 5251#ifdef ENABLE_CHECKING 5252extern void validate_conversion_obstack (void); 5253#endif /* ENABLE_CHECKING */ 5254extern void mark_versions_used (tree); 5255extern tree get_function_version_dispatcher (tree); 5256 5257/* in class.c */ 5258extern tree build_vfield_ref (tree, tree); 5259extern tree build_base_path (enum tree_code, tree, 5260 tree, int, tsubst_flags_t); 5261extern tree convert_to_base (tree, tree, bool, bool, 5262 tsubst_flags_t); 5263extern tree convert_to_base_statically (tree, tree); 5264extern tree build_vtbl_ref (tree, tree); 5265extern tree build_vfn_ref (tree, tree); 5266extern tree get_vtable_decl (tree, int); 5267extern void resort_type_method_vec (void *, void *, 5268 gt_pointer_operator, void *); 5269extern bool add_method (tree, tree, tree); 5270extern bool currently_open_class (tree); 5271extern tree currently_open_derived_class (tree); 5272extern tree outermost_open_class (void); 5273extern tree current_nonlambda_class_type (void); 5274extern tree finish_struct (tree, tree); 5275extern void finish_struct_1 (tree); 5276extern int resolves_to_fixed_type_p (tree, int *); 5277extern void init_class_processing (void); 5278extern int is_empty_class (tree); 5279extern bool is_really_empty_class (tree); 5280extern void pushclass (tree); 5281extern void popclass (void); 5282extern void push_nested_class (tree); 5283extern void pop_nested_class (void); 5284extern int current_lang_depth (void); 5285extern void push_lang_context (tree); 5286extern void pop_lang_context (void); 5287extern tree instantiate_type (tree, tree, tsubst_flags_t); 5288extern void print_class_statistics (void); 5289extern void build_self_reference (void); 5290extern int same_signature_p (const_tree, const_tree); 5291extern void maybe_add_class_template_decl_list (tree, tree, int); 5292extern void unreverse_member_declarations (tree); 5293extern void invalidate_class_lookup_cache (void); 5294extern void maybe_note_name_used_in_class (tree, tree); 5295extern void note_name_declared_in_class (tree, tree); 5296extern tree get_vtbl_decl_for_binfo (tree); 5297extern void debug_class (tree); 5298extern void debug_thunks (tree); 5299extern void set_linkage_according_to_type (tree, tree); 5300extern void determine_key_method (tree); 5301extern void check_for_override (tree, tree); 5302extern void push_class_stack (void); 5303extern void pop_class_stack (void); 5304extern bool type_has_user_nondefault_constructor (tree); 5305extern tree in_class_defaulted_default_constructor (tree); 5306extern bool user_provided_p (tree); 5307extern bool type_has_user_provided_constructor (tree); 5308extern bool type_has_non_user_provided_default_constructor (tree); 5309extern bool vbase_has_user_provided_move_assign (tree); 5310extern tree default_init_uninitialized_part (tree); 5311extern bool trivial_default_constructor_is_constexpr (tree); 5312extern bool type_has_constexpr_default_constructor (tree); 5313extern bool type_has_virtual_destructor (tree); 5314extern bool type_has_move_constructor (tree); 5315extern bool type_has_move_assign (tree); 5316extern bool type_has_user_declared_move_constructor (tree); 5317extern bool type_has_user_declared_move_assign(tree); 5318extern bool type_build_ctor_call (tree); 5319extern bool type_build_dtor_call (tree); 5320extern void explain_non_literal_class (tree); 5321extern void inherit_targ_abi_tags (tree); 5322extern void defaulted_late_check (tree); 5323extern bool defaultable_fn_check (tree); 5324extern void check_abi_tags (tree); 5325extern void fixup_type_variants (tree); 5326extern void fixup_attribute_variants (tree); 5327extern tree* decl_cloned_function_p (const_tree, bool); 5328extern void clone_function_decl (tree, int); 5329extern void adjust_clone_args (tree); 5330extern void deduce_noexcept_on_destructor (tree); 5331extern void insert_late_enum_def_into_classtype_sorted_fields (tree, tree); 5332extern bool uniquely_derived_from_p (tree, tree); 5333extern bool publicly_uniquely_derived_p (tree, tree); 5334extern tree common_enclosing_class (tree, tree); 5335 5336/* in cvt.c */ 5337extern tree convert_to_reference (tree, tree, int, int, tree, 5338 tsubst_flags_t); 5339extern tree convert_from_reference (tree); 5340extern tree force_rvalue (tree, tsubst_flags_t); 5341extern tree ocp_convert (tree, tree, int, int, 5342 tsubst_flags_t); 5343extern tree cp_convert (tree, tree, tsubst_flags_t); 5344extern tree cp_convert_and_check (tree, tree, tsubst_flags_t); 5345extern tree cp_fold_convert (tree, tree); 5346extern tree convert_to_void (tree, impl_conv_void, 5347 tsubst_flags_t); 5348extern tree convert_force (tree, tree, int, 5349 tsubst_flags_t); 5350extern tree build_expr_type_conversion (int, tree, bool); 5351extern tree type_promotes_to (tree); 5352extern tree perform_qualification_conversions (tree, tree); 5353 5354/* in name-lookup.c */ 5355extern tree pushdecl (tree); 5356extern tree pushdecl_maybe_friend (tree, bool); 5357extern void maybe_push_cleanup_level (tree); 5358extern tree pushtag (tree, tree, tag_scope); 5359extern tree make_anon_name (void); 5360extern tree pushdecl_top_level_maybe_friend (tree, bool); 5361extern tree pushdecl_top_level_and_finish (tree, tree); 5362extern tree check_for_out_of_scope_variable (tree); 5363extern void dump (cp_binding_level &ref); 5364extern void dump (cp_binding_level *ptr); 5365extern void print_other_binding_stack (cp_binding_level *); 5366extern tree maybe_push_decl (tree); 5367extern tree current_decl_namespace (void); 5368 5369/* decl.c */ 5370extern tree poplevel (int, int, int); 5371extern void cxx_init_decl_processing (void); 5372enum cp_tree_node_structure_enum cp_tree_node_structure 5373 (union lang_tree_node *); 5374extern void finish_scope (void); 5375extern void push_switch (tree); 5376extern void pop_switch (void); 5377extern tree make_lambda_name (void); 5378extern int decls_match (tree, tree); 5379extern tree duplicate_decls (tree, tree, bool); 5380extern tree declare_local_label (tree); 5381extern tree define_label (location_t, tree); 5382extern void check_goto (tree); 5383extern bool check_omp_return (void); 5384extern tree make_typename_type (tree, tree, enum tag_types, tsubst_flags_t); 5385extern tree make_unbound_class_template (tree, tree, tree, tsubst_flags_t); 5386extern tree build_library_fn_ptr (const char *, tree, int); 5387extern tree build_cp_library_fn_ptr (const char *, tree, int); 5388extern tree push_library_fn (tree, tree, tree, int); 5389extern tree push_void_library_fn (tree, tree, int); 5390extern tree push_throw_library_fn (tree, tree); 5391extern void warn_misplaced_attr_for_class_type (source_location location, 5392 tree class_type); 5393extern tree check_tag_decl (cp_decl_specifier_seq *, bool); 5394extern tree shadow_tag (cp_decl_specifier_seq *); 5395extern tree groktypename (cp_decl_specifier_seq *, const cp_declarator *, bool); 5396extern tree start_decl (const cp_declarator *, cp_decl_specifier_seq *, int, tree, tree, tree *); 5397extern void start_decl_1 (tree, bool); 5398extern bool check_array_initializer (tree, tree, tree); 5399extern void cp_finish_decl (tree, tree, bool, tree, int); 5400extern int cp_complete_array_type (tree *, tree, bool); 5401extern int cp_complete_array_type_or_error (tree *, tree, bool, tsubst_flags_t); 5402extern tree build_ptrmemfunc_type (tree); 5403extern tree build_ptrmem_type (tree, tree); 5404/* the grokdeclarator prototype is in decl.h */ 5405extern tree build_this_parm (tree, cp_cv_quals); 5406extern int copy_fn_p (const_tree); 5407extern bool move_fn_p (const_tree); 5408extern bool move_signature_fn_p (const_tree); 5409extern tree get_scope_of_declarator (const cp_declarator *); 5410extern void grok_special_member_properties (tree); 5411extern int grok_ctor_properties (const_tree, const_tree); 5412extern bool grok_op_properties (tree, bool); 5413extern tree xref_tag (enum tag_types, tree, tag_scope, bool); 5414extern tree xref_tag_from_type (tree, tree, tag_scope); 5415extern bool xref_basetypes (tree, tree); 5416extern tree start_enum (tree, tree, tree, bool, bool *); 5417extern void finish_enum_value_list (tree); 5418extern void finish_enum (tree); 5419extern void build_enumerator (tree, tree, tree, location_t); 5420extern tree lookup_enumerator (tree, tree); 5421extern bool start_preparsed_function (tree, tree, int); 5422extern bool start_function (cp_decl_specifier_seq *, 5423 const cp_declarator *, tree); 5424extern tree begin_function_body (void); 5425extern void finish_function_body (tree); 5426extern tree outer_curly_brace_block (tree); 5427extern tree finish_function (int); 5428extern tree grokmethod (cp_decl_specifier_seq *, const cp_declarator *, tree); 5429extern void maybe_register_incomplete_var (tree); 5430extern void maybe_commonize_var (tree); 5431extern void complete_vars (tree); 5432extern tree static_fn_type (tree); 5433extern void revert_static_member_fn (tree); 5434extern void fixup_anonymous_aggr (tree); 5435extern tree compute_array_index_type (tree, tree, tsubst_flags_t); 5436extern tree check_default_argument (tree, tree, tsubst_flags_t); 5437typedef int (*walk_namespaces_fn) (tree, void *); 5438extern int walk_namespaces (walk_namespaces_fn, 5439 void *); 5440extern int wrapup_globals_for_namespace (tree, void *); 5441extern tree create_implicit_typedef (tree, tree); 5442extern int local_variable_p (const_tree); 5443extern tree register_dtor_fn (tree); 5444extern tmpl_spec_kind current_tmpl_spec_kind (int); 5445extern tree cp_fname_init (const char *, tree *); 5446extern tree cxx_builtin_function (tree decl); 5447extern tree cxx_builtin_function_ext_scope (tree decl); 5448extern tree check_elaborated_type_specifier (enum tag_types, tree, bool); 5449extern void warn_extern_redeclared_static (tree, tree); 5450extern tree cxx_comdat_group (tree); 5451extern bool cp_missing_noreturn_ok_p (tree); 5452extern void initialize_artificial_var (tree, vec<constructor_elt, va_gc> *); 5453extern tree check_var_type (tree, tree); 5454extern tree reshape_init (tree, tree, tsubst_flags_t); 5455extern tree next_initializable_field (tree); 5456extern tree fndecl_declared_return_type (tree); 5457extern bool undeduced_auto_decl (tree); 5458extern void require_deduced_type (tree); 5459 5460extern bool defer_mark_used_calls; 5461extern GTY(()) vec<tree, va_gc> *deferred_mark_used_calls; 5462extern tree finish_case_label (location_t, tree, tree); 5463extern tree cxx_maybe_build_cleanup (tree, tsubst_flags_t); 5464 5465/* in decl2.c */ 5466extern void note_mangling_alias (tree, tree); 5467extern void generate_mangling_aliases (void); 5468extern bool check_java_method (tree); 5469extern tree build_memfn_type (tree, tree, cp_cv_quals, cp_ref_qualifier); 5470extern tree build_pointer_ptrmemfn_type (tree); 5471extern tree change_return_type (tree, tree); 5472extern void maybe_retrofit_in_chrg (tree); 5473extern void maybe_make_one_only (tree); 5474extern bool vague_linkage_p (tree); 5475extern void grokclassfn (tree, tree, 5476 enum overload_flags); 5477extern tree grok_array_decl (location_t, tree, tree, bool); 5478extern tree delete_sanity (tree, tree, bool, int, tsubst_flags_t); 5479extern tree check_classfn (tree, tree, tree); 5480extern void check_member_template (tree); 5481extern tree grokfield (const cp_declarator *, cp_decl_specifier_seq *, 5482 tree, bool, tree, tree); 5483extern tree grokbitfield (const cp_declarator *, cp_decl_specifier_seq *, 5484 tree, tree); 5485extern tree cp_reconstruct_complex_type (tree, tree); 5486extern bool attributes_naming_typedef_ok (tree); 5487extern void cplus_decl_attributes (tree *, tree, int); 5488extern void finish_anon_union (tree); 5489extern void cp_write_global_declarations (void); 5490extern tree coerce_new_type (tree); 5491extern tree coerce_delete_type (tree); 5492extern void comdat_linkage (tree); 5493extern void determine_visibility (tree); 5494extern void constrain_class_visibility (tree); 5495extern void reset_type_linkage (tree); 5496extern void tentative_decl_linkage (tree); 5497extern void import_export_decl (tree); 5498extern tree build_cleanup (tree); 5499extern tree build_offset_ref_call_from_tree (tree, vec<tree, va_gc> **, 5500 tsubst_flags_t); 5501extern bool decl_constant_var_p (tree); 5502extern bool decl_maybe_constant_var_p (tree); 5503extern void no_linkage_error (tree); 5504extern void check_default_args (tree); 5505extern bool mark_used (tree); 5506extern bool mark_used (tree, tsubst_flags_t); 5507extern void finish_static_data_member_decl (tree, tree, bool, tree, int); 5508extern tree cp_build_parm_decl (tree, tree); 5509extern tree get_guard (tree); 5510extern tree get_guard_cond (tree); 5511extern tree set_guard (tree); 5512extern tree get_tls_wrapper_fn (tree); 5513extern void mark_needed (tree); 5514extern bool decl_needed_p (tree); 5515extern void note_vague_linkage_fn (tree); 5516extern void note_variable_template_instantiation (tree); 5517extern tree build_artificial_parm (tree, tree); 5518extern bool possibly_inlined_p (tree); 5519extern int parm_index (tree); 5520extern tree vtv_start_verification_constructor_init_function (void); 5521extern tree vtv_finish_verification_constructor_init_function (tree); 5522extern bool cp_omp_mappable_type (tree); 5523 5524/* in error.c */ 5525extern void init_error (void); 5526extern const char *type_as_string (tree, int); 5527extern const char *type_as_string_translate (tree, int); 5528extern const char *decl_as_string (tree, int); 5529extern const char *decl_as_string_translate (tree, int); 5530extern const char *decl_as_dwarf_string (tree, int); 5531extern const char *expr_as_string (tree, int); 5532extern const char *lang_decl_name (tree, int, bool); 5533extern const char *lang_decl_dwarf_name (tree, int, bool); 5534extern const char *language_to_string (enum languages); 5535extern const char *class_key_or_enum_as_string (tree); 5536extern void maybe_warn_variadic_templates (void); 5537extern void maybe_warn_cpp0x (cpp0x_warn_str str); 5538extern bool pedwarn_cxx98 (location_t, int, const char *, ...) ATTRIBUTE_GCC_DIAG(3,4); 5539extern location_t location_of (tree); 5540extern void qualified_name_lookup_error (tree, tree, tree, 5541 location_t); 5542 5543/* in except.c */ 5544extern void init_exception_processing (void); 5545extern tree expand_start_catch_block (tree); 5546extern void expand_end_catch_block (void); 5547extern tree build_exc_ptr (void); 5548extern tree build_throw (tree); 5549extern int nothrow_libfn_p (const_tree); 5550extern void check_handlers (tree); 5551extern tree finish_noexcept_expr (tree, tsubst_flags_t); 5552extern bool expr_noexcept_p (tree, tsubst_flags_t); 5553extern void perform_deferred_noexcept_checks (void); 5554extern bool nothrow_spec_p (const_tree); 5555extern bool type_noexcept_p (const_tree); 5556extern bool type_throw_all_p (const_tree); 5557extern tree build_noexcept_spec (tree, int); 5558extern void choose_personality_routine (enum languages); 5559extern tree build_must_not_throw_expr (tree,tree); 5560extern tree eh_type_info (tree); 5561extern tree begin_eh_spec_block (void); 5562extern void finish_eh_spec_block (tree, tree); 5563extern tree build_eh_type_type (tree); 5564extern tree cp_protect_cleanup_actions (void); 5565extern tree create_try_catch_expr (tree, tree); 5566 5567/* in expr.c */ 5568extern tree cplus_expand_constant (tree); 5569extern tree mark_rvalue_use (tree); 5570extern tree mark_lvalue_use (tree); 5571extern tree mark_type_use (tree); 5572extern void mark_exp_read (tree); 5573 5574/* friend.c */ 5575extern int is_friend (tree, tree); 5576extern void make_friend_class (tree, tree, bool); 5577extern void add_friend (tree, tree, bool); 5578extern tree do_friend (tree, tree, tree, tree, enum overload_flags, bool); 5579 5580/* in init.c */ 5581extern tree expand_member_init (tree); 5582extern void emit_mem_initializers (tree); 5583extern tree build_aggr_init (tree, tree, int, 5584 tsubst_flags_t); 5585extern int is_class_type (tree, int); 5586extern tree get_type_value (tree); 5587extern tree build_zero_init (tree, tree, bool); 5588extern tree build_value_init (tree, tsubst_flags_t); 5589extern tree build_value_init_noctor (tree, tsubst_flags_t); 5590extern tree get_nsdmi (tree, bool); 5591extern tree build_offset_ref (tree, tree, bool, 5592 tsubst_flags_t); 5593extern tree throw_bad_array_new_length (void); 5594extern tree build_new (vec<tree, va_gc> **, tree, tree, 5595 vec<tree, va_gc> **, int, 5596 tsubst_flags_t); 5597extern tree get_temp_regvar (tree, tree); 5598extern tree build_vec_init (tree, tree, tree, bool, int, 5599 tsubst_flags_t); 5600extern tree build_delete (tree, tree, 5601 special_function_kind, 5602 int, int, tsubst_flags_t); 5603extern void push_base_cleanups (void); 5604extern tree build_vec_delete (tree, tree, 5605 special_function_kind, int, 5606 tsubst_flags_t); 5607extern tree create_temporary_var (tree); 5608extern void initialize_vtbl_ptrs (tree); 5609extern tree build_java_class_ref (tree); 5610extern tree scalar_constant_value (tree); 5611extern tree decl_really_constant_value (tree); 5612extern int diagnose_uninitialized_cst_or_ref_member (tree, bool, bool); 5613extern tree build_vtbl_address (tree); 5614 5615/* in lex.c */ 5616extern void cxx_dup_lang_specific_decl (tree); 5617extern void yyungetc (int, int); 5618 5619extern tree unqualified_name_lookup_error (tree); 5620extern tree unqualified_fn_lookup_error (tree); 5621extern tree build_lang_decl (enum tree_code, tree, tree); 5622extern tree build_lang_decl_loc (location_t, enum tree_code, tree, tree); 5623extern void retrofit_lang_decl (tree); 5624extern tree copy_decl (tree); 5625extern tree copy_type (tree); 5626extern tree cxx_make_type (enum tree_code); 5627extern tree make_class_type (enum tree_code); 5628extern bool cxx_init (void); 5629extern void cxx_finish (void); 5630extern bool in_main_input_context (void); 5631 5632/* in method.c */ 5633extern void init_method (void); 5634extern tree make_thunk (tree, bool, tree, tree); 5635extern void finish_thunk (tree); 5636extern void use_thunk (tree, bool); 5637extern bool trivial_fn_p (tree); 5638extern bool is_trivially_xible (enum tree_code, tree, tree); 5639extern tree get_defaulted_eh_spec (tree); 5640extern tree unevaluated_noexcept_spec (void); 5641extern void after_nsdmi_defaulted_late_checks (tree); 5642extern bool maybe_explain_implicit_delete (tree); 5643extern void explain_implicit_non_constexpr (tree); 5644extern void deduce_inheriting_ctor (tree); 5645extern void synthesize_method (tree); 5646extern tree lazily_declare_fn (special_function_kind, 5647 tree); 5648extern tree skip_artificial_parms_for (const_tree, tree); 5649extern int num_artificial_parms_for (const_tree); 5650extern tree make_alias_for (tree, tree); 5651extern tree get_copy_ctor (tree, tsubst_flags_t); 5652extern tree get_copy_assign (tree); 5653extern tree get_default_ctor (tree); 5654extern tree get_dtor (tree, tsubst_flags_t); 5655extern tree get_inherited_ctor (tree); 5656extern tree locate_ctor (tree); 5657extern tree implicitly_declare_fn (special_function_kind, tree, 5658 bool, tree, tree); 5659 5660/* In optimize.c */ 5661extern bool maybe_clone_body (tree); 5662 5663/* In parser.c */ 5664extern tree cp_convert_range_for (tree, tree, tree, bool); 5665extern bool parsing_nsdmi (void); 5666extern void inject_this_parameter (tree, cp_cv_quals); 5667 5668/* in pt.c */ 5669extern bool check_template_shadow (tree); 5670extern tree get_innermost_template_args (tree, int); 5671extern void maybe_begin_member_template_processing (tree); 5672extern void maybe_end_member_template_processing (void); 5673extern tree finish_member_template_decl (tree); 5674extern void begin_template_parm_list (void); 5675extern bool begin_specialization (void); 5676extern void reset_specialization (void); 5677extern void end_specialization (void); 5678extern void begin_explicit_instantiation (void); 5679extern void end_explicit_instantiation (void); 5680extern tree check_explicit_specialization (tree, tree, int, int); 5681extern int num_template_headers_for_class (tree); 5682extern void check_template_variable (tree); 5683extern tree make_auto (void); 5684extern tree make_decltype_auto (void); 5685extern tree do_auto_deduction (tree, tree, tree); 5686extern tree type_uses_auto (tree); 5687extern tree type_uses_auto_or_concept (tree); 5688extern void append_type_to_template_for_access_check (tree, tree, tree, 5689 location_t); 5690extern tree convert_generic_types_to_packs (tree, int, int); 5691extern tree splice_late_return_type (tree, tree); 5692extern bool is_auto (const_tree); 5693extern bool is_auto_or_concept (const_tree); 5694extern tree process_template_parm (tree, location_t, tree, 5695 bool, bool); 5696extern tree end_template_parm_list (tree); 5697extern void end_template_decl (void); 5698extern tree maybe_update_decl_type (tree, tree); 5699extern bool check_default_tmpl_args (tree, tree, bool, bool, int); 5700extern tree push_template_decl (tree); 5701extern tree push_template_decl_real (tree, bool); 5702extern tree add_inherited_template_parms (tree, tree); 5703extern bool redeclare_class_template (tree, tree); 5704extern tree lookup_template_class (tree, tree, tree, tree, 5705 int, tsubst_flags_t); 5706extern tree lookup_template_function (tree, tree); 5707extern tree lookup_template_variable (tree, tree); 5708extern int uses_template_parms (tree); 5709extern int uses_template_parms_level (tree, int); 5710extern bool in_template_function (void); 5711extern tree instantiate_class_template (tree); 5712extern tree instantiate_template (tree, tree, tsubst_flags_t); 5713extern tree fn_type_unification (tree, tree, tree, 5714 const tree *, unsigned int, 5715 tree, unification_kind_t, int, 5716 bool, bool); 5717extern void mark_decl_instantiated (tree, int); 5718extern int more_specialized_fn (tree, tree, int); 5719extern void do_decl_instantiation (tree, tree); 5720extern void do_type_instantiation (tree, tree, tsubst_flags_t); 5721extern bool always_instantiate_p (tree); 5722extern void maybe_instantiate_noexcept (tree); 5723extern tree instantiate_decl (tree, int, bool); 5724extern int comp_template_parms (const_tree, const_tree); 5725extern bool uses_parameter_packs (tree); 5726extern bool template_parameter_pack_p (const_tree); 5727extern bool function_parameter_pack_p (const_tree); 5728extern bool function_parameter_expanded_from_pack_p (tree, tree); 5729extern tree make_pack_expansion (tree); 5730extern bool check_for_bare_parameter_packs (tree); 5731extern tree build_template_info (tree, tree); 5732extern tree get_template_info (const_tree); 5733extern vec<qualified_typedef_usage_t, va_gc> *get_types_needing_access_check (tree); 5734extern int template_class_depth (tree); 5735extern int is_specialization_of (tree, tree); 5736extern bool is_specialization_of_friend (tree, tree); 5737extern tree get_pattern_parm (tree, tree); 5738extern int comp_template_args (tree, tree); 5739extern tree maybe_process_partial_specialization (tree); 5740extern tree most_specialized_instantiation (tree); 5741extern void print_candidates (tree); 5742extern void instantiate_pending_templates (int); 5743extern tree tsubst_default_argument (tree, tree, tree, 5744 tsubst_flags_t); 5745extern tree tsubst (tree, tree, tsubst_flags_t, tree); 5746extern tree tsubst_copy_and_build (tree, tree, tsubst_flags_t, 5747 tree, bool, bool); 5748extern tree most_general_template (tree); 5749extern tree get_mostly_instantiated_function_type (tree); 5750extern bool problematic_instantiation_changed (void); 5751extern void record_last_problematic_instantiation (void); 5752extern struct tinst_level *current_instantiation(void); 5753extern bool instantiating_current_function_p (void); 5754extern tree maybe_get_template_decl_from_type_decl (tree); 5755extern int processing_template_parmlist; 5756extern bool dependent_type_p (tree); 5757extern bool dependent_scope_p (tree); 5758extern bool any_dependent_template_arguments_p (const_tree); 5759extern bool dependent_template_p (tree); 5760extern bool dependent_template_id_p (tree, tree); 5761extern bool type_dependent_expression_p (tree); 5762extern bool any_type_dependent_arguments_p (const vec<tree, va_gc> *); 5763extern bool any_type_dependent_elements_p (const_tree); 5764extern bool type_dependent_expression_p_push (tree); 5765extern bool value_dependent_expression_p (tree); 5766extern bool instantiation_dependent_expression_p (tree); 5767extern bool any_value_dependent_elements_p (const_tree); 5768extern bool dependent_omp_for_p (tree, tree, tree, tree); 5769extern tree resolve_typename_type (tree, bool); 5770extern tree template_for_substitution (tree); 5771extern tree build_non_dependent_expr (tree); 5772extern void make_args_non_dependent (vec<tree, va_gc> *); 5773extern bool reregister_specialization (tree, tree, tree); 5774extern tree instantiate_non_dependent_expr (tree); 5775extern tree instantiate_non_dependent_expr_sfinae (tree, tsubst_flags_t); 5776extern tree instantiate_non_dependent_expr_internal (tree, tsubst_flags_t); 5777extern bool variable_template_specialization_p (tree); 5778extern bool alias_type_or_template_p (tree); 5779extern bool alias_template_specialization_p (const_tree); 5780extern bool dependent_alias_template_spec_p (const_tree); 5781extern bool explicit_class_specialization_p (tree); 5782extern bool push_tinst_level (tree); 5783extern bool push_tinst_level_loc (tree, location_t); 5784extern void pop_tinst_level (void); 5785extern struct tinst_level *outermost_tinst_level(void); 5786extern void init_template_processing (void); 5787extern void print_template_statistics (void); 5788bool template_template_parameter_p (const_tree); 5789bool template_type_parameter_p (const_tree); 5790extern bool primary_template_instantiation_p (const_tree); 5791extern tree get_primary_template_innermost_parameters (const_tree); 5792extern tree get_template_parms_at_level (tree, int); 5793extern tree get_template_innermost_arguments (const_tree); 5794extern tree get_template_argument_pack_elems (const_tree); 5795extern tree get_function_template_decl (const_tree); 5796extern tree resolve_nondeduced_context (tree, tsubst_flags_t); 5797extern hashval_t iterative_hash_template_arg (tree arg, hashval_t val); 5798 5799/* in repo.c */ 5800extern void init_repo (void); 5801extern int repo_emit_p (tree); 5802extern bool repo_export_class_p (const_tree); 5803extern void finish_repo (void); 5804 5805/* in rtti.c */ 5806/* A vector of all tinfo decls that haven't been emitted yet. */ 5807extern GTY(()) vec<tree, va_gc> *unemitted_tinfo_decls; 5808 5809extern void init_rtti_processing (void); 5810extern tree build_typeid (tree, tsubst_flags_t); 5811extern tree get_tinfo_decl (tree); 5812extern tree get_typeid (tree, tsubst_flags_t); 5813extern tree build_headof (tree); 5814extern tree build_dynamic_cast (tree, tree, tsubst_flags_t); 5815extern void emit_support_tinfos (void); 5816extern bool emit_tinfo_decl (tree); 5817 5818/* in search.c */ 5819extern bool accessible_base_p (tree, tree, bool); 5820extern tree lookup_base (tree, tree, base_access, 5821 base_kind *, tsubst_flags_t); 5822extern tree dcast_base_hint (tree, tree); 5823extern int accessible_p (tree, tree, bool); 5824extern int accessible_in_template_p (tree, tree); 5825extern tree lookup_field_1 (tree, tree, bool); 5826extern tree lookup_field (tree, tree, int, bool); 5827extern int lookup_fnfields_1 (tree, tree); 5828extern tree lookup_fnfields_slot (tree, tree); 5829extern tree lookup_fnfields_slot_nolazy (tree, tree); 5830extern int class_method_index_for_fn (tree, tree); 5831extern tree lookup_fnfields (tree, tree, int); 5832extern tree lookup_member (tree, tree, int, bool, 5833 tsubst_flags_t); 5834extern int look_for_overrides (tree, tree); 5835extern void get_pure_virtuals (tree); 5836extern void maybe_suppress_debug_info (tree); 5837extern void note_debug_info_needed (tree); 5838extern void print_search_statistics (void); 5839extern void reinit_search_statistics (void); 5840extern tree current_scope (void); 5841extern int at_function_scope_p (void); 5842extern bool at_class_scope_p (void); 5843extern bool at_namespace_scope_p (void); 5844extern tree context_for_name_lookup (tree); 5845extern tree lookup_conversions (tree); 5846extern tree binfo_from_vbase (tree); 5847extern tree binfo_for_vbase (tree, tree); 5848extern tree look_for_overrides_here (tree, tree); 5849#define dfs_skip_bases ((tree)1) 5850extern tree dfs_walk_all (tree, tree (*) (tree, void *), 5851 tree (*) (tree, void *), void *); 5852extern tree dfs_walk_once (tree, tree (*) (tree, void *), 5853 tree (*) (tree, void *), void *); 5854extern tree binfo_via_virtual (tree, tree); 5855extern tree build_baselink (tree, tree, tree, tree); 5856extern tree adjust_result_of_qualified_name_lookup 5857 (tree, tree, tree); 5858extern tree copied_binfo (tree, tree); 5859extern tree original_binfo (tree, tree); 5860extern int shared_member_p (tree); 5861 5862/* The representation of a deferred access check. */ 5863 5864typedef struct GTY(()) deferred_access_check { 5865 /* The base class in which the declaration is referenced. */ 5866 tree binfo; 5867 /* The declaration whose access must be checked. */ 5868 tree decl; 5869 /* The declaration that should be used in the error message. */ 5870 tree diag_decl; 5871 /* The location of this access. */ 5872 location_t loc; 5873} deferred_access_check; 5874 5875/* in semantics.c */ 5876extern void push_deferring_access_checks (deferring_kind); 5877extern void resume_deferring_access_checks (void); 5878extern void stop_deferring_access_checks (void); 5879extern void pop_deferring_access_checks (void); 5880extern vec<deferred_access_check, va_gc> *get_deferred_access_checks (void); 5881extern void reopen_deferring_access_checks (vec<deferred_access_check, va_gc> *); 5882extern void pop_to_parent_deferring_access_checks (void); 5883extern bool perform_access_checks (vec<deferred_access_check, va_gc> *, 5884 tsubst_flags_t); 5885extern bool perform_deferred_access_checks (tsubst_flags_t); 5886extern bool perform_or_defer_access_check (tree, tree, tree, 5887 tsubst_flags_t); 5888extern int stmts_are_full_exprs_p (void); 5889extern void init_cp_semantics (void); 5890extern tree do_poplevel (tree); 5891extern void break_maybe_infinite_loop (void); 5892extern void add_decl_expr (tree); 5893extern tree maybe_cleanup_point_expr_void (tree); 5894extern tree finish_expr_stmt (tree); 5895extern tree begin_if_stmt (void); 5896extern void finish_if_stmt_cond (tree, tree); 5897extern tree finish_then_clause (tree); 5898extern void begin_else_clause (tree); 5899extern void finish_else_clause (tree); 5900extern void finish_if_stmt (tree); 5901extern tree begin_while_stmt (void); 5902extern void finish_while_stmt_cond (tree, tree, bool); 5903extern void finish_while_stmt (tree); 5904extern tree begin_do_stmt (void); 5905extern void finish_do_body (tree); 5906extern void finish_do_stmt (tree, tree, bool); 5907extern tree finish_return_stmt (tree); 5908extern tree begin_for_scope (tree *); 5909extern tree begin_for_stmt (tree, tree); 5910extern void finish_for_init_stmt (tree); 5911extern void finish_for_cond (tree, tree, bool); 5912extern void finish_for_expr (tree, tree); 5913extern void finish_for_stmt (tree); 5914extern tree begin_range_for_stmt (tree, tree); 5915extern void finish_range_for_decl (tree, tree, tree); 5916extern void finish_range_for_stmt (tree); 5917extern tree finish_break_stmt (void); 5918extern tree finish_continue_stmt (void); 5919extern tree begin_switch_stmt (void); 5920extern void finish_switch_cond (tree, tree); 5921extern void finish_switch_stmt (tree); 5922extern tree finish_goto_stmt (tree); 5923extern tree begin_try_block (void); 5924extern void finish_try_block (tree); 5925extern void finish_handler_sequence (tree); 5926extern tree begin_function_try_block (tree *); 5927extern void finish_function_try_block (tree); 5928extern void finish_function_handler_sequence (tree, tree); 5929extern void finish_cleanup_try_block (tree); 5930extern tree begin_handler (void); 5931extern void finish_handler_parms (tree, tree); 5932extern void finish_handler (tree); 5933extern void finish_cleanup (tree, tree); 5934extern bool is_this_parameter (tree); 5935 5936enum { 5937 BCS_NO_SCOPE = 1, 5938 BCS_TRY_BLOCK = 2, 5939 BCS_FN_BODY = 4 5940}; 5941extern tree begin_compound_stmt (unsigned int); 5942 5943extern void finish_compound_stmt (tree); 5944extern tree finish_asm_stmt (int, tree, tree, tree, tree, 5945 tree); 5946extern tree finish_label_stmt (tree); 5947extern void finish_label_decl (tree); 5948extern tree finish_parenthesized_expr (tree); 5949extern tree force_paren_expr (tree); 5950extern tree finish_non_static_data_member (tree, tree, tree); 5951extern tree begin_stmt_expr (void); 5952extern tree finish_stmt_expr_expr (tree, tree); 5953extern tree finish_stmt_expr (tree, bool); 5954extern tree stmt_expr_value_expr (tree); 5955bool empty_expr_stmt_p (tree); 5956extern tree perform_koenig_lookup (tree, vec<tree, va_gc> *, 5957 tsubst_flags_t); 5958extern tree finish_call_expr (tree, vec<tree, va_gc> **, bool, 5959 bool, tsubst_flags_t); 5960extern tree finish_template_variable (tree, tsubst_flags_t = tf_warning_or_error); 5961extern tree finish_increment_expr (tree, enum tree_code); 5962extern tree finish_this_expr (void); 5963extern tree finish_pseudo_destructor_expr (tree, tree, tree, location_t); 5964extern tree finish_unary_op_expr (location_t, enum tree_code, tree, 5965 tsubst_flags_t); 5966extern tree finish_compound_literal (tree, tree, tsubst_flags_t); 5967extern tree finish_fname (tree); 5968extern void finish_translation_unit (void); 5969extern tree finish_template_type_parm (tree, tree); 5970extern tree finish_template_template_parm (tree, tree); 5971extern tree begin_class_definition (tree); 5972extern void finish_template_decl (tree); 5973extern tree finish_template_type (tree, tree, int); 5974extern tree finish_base_specifier (tree, tree, bool); 5975extern void finish_member_declaration (tree); 5976extern bool outer_automatic_var_p (tree); 5977extern tree process_outer_var_ref (tree, tsubst_flags_t); 5978extern tree finish_id_expression (tree, tree, tree, 5979 cp_id_kind *, 5980 bool, bool, bool *, 5981 bool, bool, bool, bool, 5982 const char **, 5983 location_t); 5984extern tree finish_typeof (tree); 5985extern tree finish_underlying_type (tree); 5986extern tree calculate_bases (tree); 5987extern tree finish_bases (tree, bool); 5988extern tree calculate_direct_bases (tree); 5989extern tree finish_offsetof (tree, location_t); 5990extern void finish_decl_cleanup (tree, tree); 5991extern void finish_eh_cleanup (tree); 5992extern void emit_associated_thunks (tree); 5993extern void finish_mem_initializers (tree); 5994extern tree check_template_template_default_arg (tree); 5995extern bool expand_or_defer_fn_1 (tree); 5996extern void expand_or_defer_fn (tree); 5997extern void add_typedef_to_current_template_for_access_check (tree, tree, 5998 location_t); 5999extern void check_accessibility_of_qualified_id (tree, tree, tree); 6000extern tree finish_qualified_id_expr (tree, tree, bool, bool, 6001 bool, bool, tsubst_flags_t); 6002extern void simplify_aggr_init_expr (tree *); 6003extern void finalize_nrv (tree *, tree, tree); 6004extern void note_decl_for_pch (tree); 6005extern tree omp_reduction_id (enum tree_code, tree, tree); 6006extern tree cp_remove_omp_priv_cleanup_stmt (tree *, int *, void *); 6007extern void cp_check_omp_declare_reduction (tree); 6008extern tree finish_omp_clauses (tree); 6009extern void finish_omp_threadprivate (tree); 6010extern tree begin_omp_structured_block (void); 6011extern tree finish_omp_structured_block (tree); 6012extern tree finish_oacc_data (tree, tree); 6013extern tree finish_oacc_kernels (tree, tree); 6014extern tree finish_oacc_parallel (tree, tree); 6015extern tree begin_omp_parallel (void); 6016extern tree finish_omp_parallel (tree, tree); 6017extern tree begin_omp_task (void); 6018extern tree finish_omp_task (tree, tree); 6019extern tree finish_omp_for (location_t, enum tree_code, 6020 tree, tree, tree, tree, tree, 6021 tree, tree); 6022extern void finish_omp_atomic (enum tree_code, enum tree_code, 6023 tree, tree, tree, tree, tree, 6024 bool); 6025extern void finish_omp_barrier (void); 6026extern void finish_omp_flush (void); 6027extern void finish_omp_taskwait (void); 6028extern void finish_omp_taskyield (void); 6029extern void finish_omp_cancel (tree); 6030extern void finish_omp_cancellation_point (tree); 6031extern tree begin_transaction_stmt (location_t, tree *, int); 6032extern void finish_transaction_stmt (tree, tree, int, tree); 6033extern tree build_transaction_expr (location_t, tree, int, tree); 6034extern bool cxx_omp_create_clause_info (tree, tree, bool, bool, 6035 bool, bool); 6036extern tree baselink_for_fns (tree); 6037extern void finish_static_assert (tree, tree, location_t, 6038 bool); 6039extern tree finish_decltype_type (tree, bool, tsubst_flags_t); 6040extern tree finish_trait_expr (enum cp_trait_kind, tree, tree); 6041extern tree build_lambda_expr (void); 6042extern tree build_lambda_object (tree); 6043extern tree begin_lambda_type (tree); 6044extern tree lambda_capture_field_type (tree, bool); 6045extern tree lambda_return_type (tree); 6046extern tree lambda_proxy_type (tree); 6047extern tree lambda_function (tree); 6048extern void apply_deduced_return_type (tree, tree); 6049extern tree add_capture (tree, tree, tree, bool, bool); 6050extern tree add_default_capture (tree, tree, tree); 6051extern tree build_capture_proxy (tree); 6052extern void insert_capture_proxy (tree); 6053extern void insert_pending_capture_proxies (void); 6054extern bool is_capture_proxy (tree); 6055extern bool is_normal_capture_proxy (tree); 6056extern void register_capture_members (tree); 6057extern tree lambda_expr_this_capture (tree, bool); 6058extern tree maybe_resolve_dummy (tree, bool); 6059extern tree current_nonlambda_function (void); 6060extern tree nonlambda_method_basetype (void); 6061extern void maybe_add_lambda_conv_op (tree); 6062extern bool is_lambda_ignored_entity (tree); 6063 6064/* in tree.c */ 6065extern int cp_tree_operand_length (const_tree); 6066void cp_free_lang_data (tree t); 6067extern tree force_target_expr (tree, tree, tsubst_flags_t); 6068extern tree build_target_expr_with_type (tree, tree, tsubst_flags_t); 6069extern void lang_check_failed (const char *, int, 6070 const char *) ATTRIBUTE_NORETURN; 6071extern tree stabilize_expr (tree, tree *); 6072extern void stabilize_call (tree, tree *); 6073extern bool stabilize_init (tree, tree *); 6074extern tree add_stmt_to_compound (tree, tree); 6075extern void init_tree (void); 6076extern bool pod_type_p (const_tree); 6077extern bool layout_pod_type_p (const_tree); 6078extern bool std_layout_type_p (const_tree); 6079extern bool trivial_type_p (const_tree); 6080extern bool trivially_copyable_p (const_tree); 6081extern bool scalarish_type_p (const_tree); 6082extern bool type_has_nontrivial_default_init (const_tree); 6083extern bool type_has_nontrivial_copy_init (const_tree); 6084extern bool class_tmpl_impl_spec_p (const_tree); 6085extern int zero_init_p (const_tree); 6086extern bool check_abi_tag_redeclaration (const_tree, const_tree, const_tree); 6087extern bool check_abi_tag_args (tree, tree); 6088extern tree strip_typedefs (tree); 6089extern tree strip_typedefs_expr (tree); 6090extern tree copy_binfo (tree, tree, tree, 6091 tree *, int); 6092extern int member_p (const_tree); 6093extern cp_lvalue_kind real_lvalue_p (const_tree); 6094extern cp_lvalue_kind lvalue_kind (const_tree); 6095extern bool lvalue_or_rvalue_with_address_p (const_tree); 6096extern bool xvalue_p (const_tree); 6097extern bool builtin_valid_in_constant_expr_p (const_tree); 6098extern tree build_min (enum tree_code, tree, ...); 6099extern tree build_min_nt_loc (location_t, enum tree_code, 6100 ...); 6101extern tree build_min_non_dep (enum tree_code, tree, ...); 6102extern tree build_min_non_dep_call_vec (tree, tree, vec<tree, va_gc> *); 6103extern tree build_cplus_new (tree, tree, tsubst_flags_t); 6104extern tree build_aggr_init_expr (tree, tree); 6105extern tree get_target_expr (tree); 6106extern tree get_target_expr_sfinae (tree, tsubst_flags_t); 6107extern tree build_cplus_array_type (tree, tree); 6108extern tree build_array_of_n_type (tree, int); 6109extern bool array_of_runtime_bound_p (tree); 6110extern tree build_array_copy (tree); 6111extern tree build_vec_init_expr (tree, tree, tsubst_flags_t); 6112extern void diagnose_non_constexpr_vec_init (tree); 6113extern tree hash_tree_cons (tree, tree, tree); 6114extern tree hash_tree_chain (tree, tree); 6115extern tree build_qualified_name (tree, tree, tree, bool); 6116extern tree build_ref_qualified_type (tree, cp_ref_qualifier); 6117extern int is_overloaded_fn (tree); 6118extern tree dependent_name (tree); 6119extern tree get_fns (tree); 6120extern tree get_first_fn (tree); 6121extern tree ovl_cons (tree, tree); 6122extern tree build_overload (tree, tree); 6123extern tree ovl_scope (tree); 6124extern bool non_static_member_function_p (tree); 6125extern const char *cxx_printable_name (tree, int); 6126extern const char *cxx_printable_name_translate (tree, int); 6127extern tree build_exception_variant (tree, tree); 6128extern tree bind_template_template_parm (tree, tree); 6129extern tree array_type_nelts_total (tree); 6130extern tree array_type_nelts_top (tree); 6131extern tree break_out_target_exprs (tree); 6132extern tree build_ctor_subob_ref (tree, tree, tree); 6133extern tree replace_placeholders (tree, tree); 6134extern tree get_type_decl (tree); 6135extern tree decl_namespace_context (tree); 6136extern bool decl_anon_ns_mem_p (const_tree); 6137extern tree lvalue_type (tree); 6138extern tree error_type (tree); 6139extern int varargs_function_p (const_tree); 6140extern bool really_overloaded_fn (tree); 6141extern bool cp_tree_equal (tree, tree); 6142extern tree no_linkage_check (tree, bool); 6143extern void debug_binfo (tree); 6144extern tree build_dummy_object (tree); 6145extern tree maybe_dummy_object (tree, tree *); 6146extern int is_dummy_object (const_tree); 6147extern const struct attribute_spec cxx_attribute_table[]; 6148extern tree make_ptrmem_cst (tree, tree); 6149extern tree cp_build_type_attribute_variant (tree, tree); 6150extern tree cp_build_reference_type (tree, bool); 6151extern tree move (tree); 6152extern tree cp_build_qualified_type_real (tree, int, tsubst_flags_t); 6153#define cp_build_qualified_type(TYPE, QUALS) \ 6154 cp_build_qualified_type_real ((TYPE), (QUALS), tf_warning_or_error) 6155extern bool cv_qualified_p (const_tree); 6156extern tree cv_unqualified (tree); 6157extern special_function_kind special_function_p (const_tree); 6158extern int count_trees (tree); 6159extern int char_type_p (tree); 6160extern void verify_stmt_tree (tree); 6161extern linkage_kind decl_linkage (tree); 6162extern duration_kind decl_storage_duration (tree); 6163extern tree cp_walk_subtrees (tree*, int*, walk_tree_fn, 6164 void*, hash_set<tree> *); 6165#define cp_walk_tree(tp,func,data,pset) \ 6166 walk_tree_1 (tp, func, data, pset, cp_walk_subtrees) 6167#define cp_walk_tree_without_duplicates(tp,func,data) \ 6168 walk_tree_without_duplicates_1 (tp, func, data, cp_walk_subtrees) 6169extern tree fold_if_not_in_template (tree); 6170extern tree rvalue (tree); 6171extern tree convert_bitfield_to_declared_type (tree); 6172extern tree cp_save_expr (tree); 6173extern bool cast_valid_in_integral_constant_expression_p (tree); 6174extern bool cxx_type_hash_eq (const_tree, const_tree); 6175 6176extern void cxx_print_statistics (void); 6177extern bool maybe_warn_zero_as_null_pointer_constant (tree, location_t); 6178 6179/* in ptree.c */ 6180extern void cxx_print_xnode (FILE *, tree, int); 6181extern void cxx_print_decl (FILE *, tree, int); 6182extern void cxx_print_type (FILE *, tree, int); 6183extern void cxx_print_identifier (FILE *, tree, int); 6184extern void cxx_print_error_function (diagnostic_context *, 6185 const char *, 6186 struct diagnostic_info *); 6187 6188/* in typeck.c */ 6189extern bool cxx_mark_addressable (tree); 6190extern int string_conv_p (const_tree, const_tree, int); 6191extern tree cp_truthvalue_conversion (tree); 6192extern tree condition_conversion (tree); 6193extern tree require_complete_type (tree); 6194extern tree require_complete_type_sfinae (tree, tsubst_flags_t); 6195extern tree complete_type (tree); 6196extern tree complete_type_or_else (tree, tree); 6197extern tree complete_type_or_maybe_complain (tree, tree, tsubst_flags_t); 6198extern int type_unknown_p (const_tree); 6199enum { ce_derived, ce_normal, ce_exact }; 6200extern bool comp_except_specs (const_tree, const_tree, int); 6201extern bool comptypes (tree, tree, int); 6202extern bool same_type_ignoring_top_level_qualifiers_p (tree, tree); 6203extern bool compparms (const_tree, const_tree); 6204extern int comp_cv_qualification (const_tree, const_tree); 6205extern int comp_cv_qualification (int, int); 6206extern int comp_cv_qual_signature (tree, tree); 6207extern tree cxx_sizeof_or_alignof_expr (tree, enum tree_code, bool); 6208extern tree cxx_sizeof_or_alignof_type (tree, enum tree_code, bool); 6209extern tree cxx_alignas_expr (tree); 6210extern tree cxx_sizeof_nowarn (tree); 6211extern tree is_bitfield_expr_with_lowered_type (const_tree); 6212extern tree unlowered_expr_type (const_tree); 6213extern tree decay_conversion (tree, tsubst_flags_t); 6214extern tree build_class_member_access_expr (tree, tree, tree, bool, 6215 tsubst_flags_t); 6216extern tree finish_class_member_access_expr (tree, tree, bool, 6217 tsubst_flags_t); 6218extern tree build_x_indirect_ref (location_t, tree, 6219 ref_operator, tsubst_flags_t); 6220extern tree cp_build_indirect_ref (tree, ref_operator, 6221 tsubst_flags_t); 6222extern tree build_array_ref (location_t, tree, tree); 6223extern tree cp_build_array_ref (location_t, tree, tree, 6224 tsubst_flags_t); 6225extern tree get_member_function_from_ptrfunc (tree *, tree, tsubst_flags_t); 6226extern tree cp_build_function_call_nary (tree, tsubst_flags_t, ...) 6227 ATTRIBUTE_SENTINEL; 6228extern tree cp_build_function_call_vec (tree, vec<tree, va_gc> **, 6229 tsubst_flags_t); 6230extern tree build_x_binary_op (location_t, 6231 enum tree_code, tree, 6232 enum tree_code, tree, 6233 enum tree_code, tree *, 6234 tsubst_flags_t); 6235extern tree build_x_array_ref (location_t, tree, tree, 6236 tsubst_flags_t); 6237extern tree build_x_unary_op (location_t, 6238 enum tree_code, tree, 6239 tsubst_flags_t); 6240extern tree cp_build_addr_expr (tree, tsubst_flags_t); 6241extern tree cp_build_unary_op (enum tree_code, tree, int, 6242 tsubst_flags_t); 6243extern tree unary_complex_lvalue (enum tree_code, tree); 6244extern tree build_x_conditional_expr (location_t, tree, tree, tree, 6245 tsubst_flags_t); 6246extern tree build_x_compound_expr_from_list (tree, expr_list_kind, 6247 tsubst_flags_t); 6248extern tree build_x_compound_expr_from_vec (vec<tree, va_gc> *, 6249 const char *, tsubst_flags_t); 6250extern tree build_x_compound_expr (location_t, tree, tree, 6251 tsubst_flags_t); 6252extern tree build_compound_expr (location_t, tree, tree); 6253extern tree cp_build_compound_expr (tree, tree, tsubst_flags_t); 6254extern tree build_static_cast (tree, tree, tsubst_flags_t); 6255extern tree build_reinterpret_cast (tree, tree, tsubst_flags_t); 6256extern tree build_const_cast (tree, tree, tsubst_flags_t); 6257extern tree build_c_cast (location_t, tree, tree); 6258extern tree cp_build_c_cast (tree, tree, tsubst_flags_t); 6259extern tree build_x_modify_expr (location_t, tree, 6260 enum tree_code, tree, 6261 tsubst_flags_t); 6262extern tree cp_build_modify_expr (tree, enum tree_code, tree, 6263 tsubst_flags_t); 6264extern tree convert_for_initialization (tree, tree, tree, int, 6265 impl_conv_rhs, tree, int, 6266 tsubst_flags_t); 6267extern int comp_ptr_ttypes (tree, tree); 6268extern bool comp_ptr_ttypes_const (tree, tree); 6269extern bool error_type_p (const_tree); 6270extern bool ptr_reasonably_similar (const_tree, const_tree); 6271extern tree build_ptrmemfunc (tree, tree, int, bool, 6272 tsubst_flags_t); 6273extern int cp_type_quals (const_tree); 6274extern int type_memfn_quals (const_tree); 6275extern cp_ref_qualifier type_memfn_rqual (const_tree); 6276extern tree apply_memfn_quals (tree, cp_cv_quals, cp_ref_qualifier); 6277extern bool cp_has_mutable_p (const_tree); 6278extern bool at_least_as_qualified_p (const_tree, const_tree); 6279extern void cp_apply_type_quals_to_decl (int, tree); 6280extern tree build_ptrmemfunc1 (tree, tree, tree); 6281extern void expand_ptrmemfunc_cst (tree, tree *, tree *); 6282extern tree type_after_usual_arithmetic_conversions (tree, tree); 6283extern tree common_pointer_type (tree, tree); 6284extern tree composite_pointer_type (tree, tree, tree, tree, 6285 composite_pointer_operation, 6286 tsubst_flags_t); 6287extern tree merge_types (tree, tree); 6288extern tree strip_array_domain (tree); 6289extern tree check_return_expr (tree, bool *); 6290extern tree cp_build_binary_op (location_t, 6291 enum tree_code, tree, tree, 6292 tsubst_flags_t); 6293extern tree build_x_vec_perm_expr (location_t, 6294 tree, tree, tree, 6295 tsubst_flags_t); 6296#define cxx_sizeof(T) cxx_sizeof_or_alignof_type (T, SIZEOF_EXPR, true) 6297extern tree build_simple_component_ref (tree, tree); 6298extern tree build_ptrmemfunc_access_expr (tree, tree); 6299extern tree build_address (tree); 6300extern tree build_nop (tree, tree); 6301extern tree non_reference (tree); 6302extern tree lookup_anon_field (tree, tree); 6303extern bool invalid_nonstatic_memfn_p (tree, tsubst_flags_t); 6304extern tree convert_member_func_to_ptr (tree, tree, tsubst_flags_t); 6305extern tree convert_ptrmem (tree, tree, bool, bool, 6306 tsubst_flags_t); 6307extern int lvalue_or_else (tree, enum lvalue_use, 6308 tsubst_flags_t); 6309extern void check_template_keyword (tree); 6310extern bool check_raw_literal_operator (const_tree decl); 6311extern bool check_literal_operator_args (const_tree, bool *, bool *); 6312extern void maybe_warn_about_useless_cast (tree, tree, tsubst_flags_t); 6313extern tree cp_perform_integral_promotions (tree, tsubst_flags_t); 6314 6315/* in typeck2.c */ 6316extern void require_complete_eh_spec_types (tree, tree); 6317extern void cxx_incomplete_type_diagnostic (const_tree, const_tree, diagnostic_t); 6318#undef cxx_incomplete_type_error 6319extern void cxx_incomplete_type_error (const_tree, const_tree); 6320#define cxx_incomplete_type_error(V,T) \ 6321 (cxx_incomplete_type_diagnostic ((V), (T), DK_ERROR)) 6322extern void cxx_incomplete_type_inform (const_tree); 6323extern tree error_not_base_type (tree, tree); 6324extern tree binfo_or_else (tree, tree); 6325extern void cxx_readonly_error (tree, enum lvalue_use); 6326extern void complete_type_check_abstract (tree); 6327extern int abstract_virtuals_error (tree, tree); 6328extern int abstract_virtuals_error (abstract_class_use, tree); 6329extern int abstract_virtuals_error_sfinae (tree, tree, tsubst_flags_t); 6330extern int abstract_virtuals_error_sfinae (abstract_class_use, tree, tsubst_flags_t); 6331 6332extern tree store_init_value (tree, tree, vec<tree, va_gc>**, int); 6333extern tree split_nonconstant_init (tree, tree); 6334extern bool check_narrowing (tree, tree, tsubst_flags_t); 6335extern tree digest_init (tree, tree, tsubst_flags_t); 6336extern tree digest_init_flags (tree, tree, int); 6337extern tree digest_nsdmi_init (tree, tree); 6338extern tree build_scoped_ref (tree, tree, tree *); 6339extern tree build_x_arrow (location_t, tree, 6340 tsubst_flags_t); 6341extern tree build_m_component_ref (tree, tree, tsubst_flags_t); 6342extern tree build_functional_cast (tree, tree, tsubst_flags_t); 6343extern tree add_exception_specifier (tree, tree, int); 6344extern tree merge_exception_specifiers (tree, tree); 6345 6346/* in mangle.c */ 6347extern bool maybe_remove_implicit_alias (tree); 6348extern void init_mangle (void); 6349extern void mangle_decl (tree); 6350extern const char *mangle_type_string (tree); 6351extern tree mangle_typeinfo_for_type (tree); 6352extern tree mangle_typeinfo_string_for_type (tree); 6353extern tree mangle_vtbl_for_type (tree); 6354extern tree mangle_vtt_for_type (tree); 6355extern tree mangle_ctor_vtbl_for_type (tree, tree); 6356extern tree mangle_thunk (tree, int, tree, tree); 6357extern tree mangle_conv_op_name_for_type (tree); 6358extern tree mangle_guard_variable (tree); 6359extern tree mangle_tls_init_fn (tree); 6360extern tree mangle_tls_wrapper_fn (tree); 6361extern bool decl_tls_wrapper_p (tree); 6362extern tree mangle_ref_init_variable (tree); 6363extern char * get_mangled_vtable_map_var_name (tree); 6364extern bool mangle_return_type_p (tree); 6365 6366/* in dump.c */ 6367extern bool cp_dump_tree (void *, tree); 6368 6369/* In cp/cp-objcp-common.c. */ 6370 6371extern alias_set_type cxx_get_alias_set (tree); 6372extern bool cxx_warn_unused_global_decl (const_tree); 6373extern size_t cp_tree_size (enum tree_code); 6374extern bool cp_var_mod_type_p (tree, tree); 6375extern void cxx_initialize_diagnostics (diagnostic_context *); 6376extern int cxx_types_compatible_p (tree, tree); 6377extern void init_shadowed_var_for_decl (void); 6378extern bool cxx_block_may_fallthru (const_tree); 6379 6380/* in cp-gimplify.c */ 6381extern int cp_gimplify_expr (tree *, gimple_seq *, 6382 gimple_seq *); 6383extern void cp_genericize (tree); 6384extern bool cxx_omp_const_qual_no_mutable (tree); 6385extern enum omp_clause_default_kind cxx_omp_predetermined_sharing (tree); 6386extern tree cxx_omp_clause_default_ctor (tree, tree, tree); 6387extern tree cxx_omp_clause_copy_ctor (tree, tree, tree); 6388extern tree cxx_omp_clause_assign_op (tree, tree, tree); 6389extern tree cxx_omp_clause_dtor (tree, tree); 6390extern void cxx_omp_finish_clause (tree, gimple_seq *); 6391extern bool cxx_omp_privatize_by_reference (const_tree); 6392 6393/* in name-lookup.c */ 6394extern void suggest_alternatives_for (location_t, tree); 6395extern tree strip_using_decl (tree); 6396 6397/* in vtable-class-hierarchy.c */ 6398extern void vtv_compute_class_hierarchy_transitive_closure (void); 6399extern void vtv_generate_init_routine (void); 6400extern void vtv_save_class_info (tree); 6401extern void vtv_recover_class_info (void); 6402extern void vtv_build_vtable_verify_fndecl (void); 6403 6404/* In cp-cilkplus.c. */ 6405extern bool cpp_validate_cilk_plus_loop (tree); 6406 6407/* In cp/cp-array-notations.c */ 6408extern tree expand_array_notation_exprs (tree); 6409bool cilkplus_an_triplet_types_ok_p (location_t, tree, tree, tree, 6410 tree); 6411 6412/* In constexpr.c */ 6413extern bool literal_type_p (tree); 6414extern tree register_constexpr_fundef (tree, tree); 6415extern bool check_constexpr_ctor_body (tree, tree, bool); 6416extern tree ensure_literal_type_for_constexpr_object (tree); 6417extern bool potential_constant_expression (tree); 6418extern bool potential_static_init_expression (tree); 6419extern bool potential_rvalue_constant_expression (tree); 6420extern bool require_potential_constant_expression (tree); 6421extern bool require_potential_rvalue_constant_expression (tree); 6422extern tree cxx_constant_value (tree, tree = NULL_TREE); 6423extern tree maybe_constant_value (tree, tree = NULL_TREE); 6424extern tree maybe_constant_init (tree, tree = NULL_TREE); 6425extern tree fold_non_dependent_expr (tree); 6426extern bool is_sub_constant_expr (tree); 6427extern bool reduced_constant_expression_p (tree); 6428extern bool is_instantiation_of_constexpr (tree); 6429extern bool var_in_constexpr_fn (tree); 6430extern void explain_invalid_constexpr_fn (tree); 6431extern vec<tree> cx_error_context (void); 6432 6433/* In c-family/cilk.c */ 6434extern bool cilk_valid_spawn (tree); 6435 6436/* In cp-ubsan.c */ 6437extern void cp_ubsan_maybe_instrument_member_call (tree); 6438extern void cp_ubsan_instrument_member_accesses (tree *); 6439extern tree cp_ubsan_maybe_instrument_downcast (location_t, tree, tree, tree); 6440extern tree cp_ubsan_maybe_instrument_cast_to_vbase (location_t, tree, tree); 6441 6442/* -- end of C++ */ 6443 6444#endif /* ! GCC_CP_TREE_H */ 6445