1 /* Definitions for C++ parsing and type checking. 2 Copyright (C) 1987, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 3 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 4 Free Software Foundation, Inc. 5 Contributed by Michael Tiemann (tiemann (at) cygnus.com) 6 7 This file is part of GCC. 8 9 GCC is free software; you can redistribute it and/or modify 10 it under the terms of the GNU General Public License as published by 11 the Free Software Foundation; either version 3, or (at your option) 12 any later version. 13 14 GCC is distributed in the hope that it will be useful, 15 but WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 GNU General Public License for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with GCC; see the file COPYING3. If not see 21 <http://www.gnu.org/licenses/>. */ 22 23 #ifndef GCC_CP_TREE_H 24 #define GCC_CP_TREE_H 25 26 #include "ggc.h" 27 #include "function.h" 28 #include "hashtab.h" 29 #include "vec.h" 30 #include "l-ipo.h" 31 32 /* In order for the format checking to accept the C++ front end 33 diagnostic framework extensions, you must include this file before 34 diagnostic-core.h, not after. We override the definition of GCC_DIAG_STYLE 35 in c-common.h. */ 36 #undef GCC_DIAG_STYLE 37 #define GCC_DIAG_STYLE __gcc_cxxdiag__ 38 #if defined(GCC_DIAGNOSTIC_CORE_H) || defined (GCC_C_COMMON_H) 39 #error \ 40 In order for the format checking to accept the C++ front end diagnostic \ 41 framework extensions, you must include this file before diagnostic-core.h and \ 42 c-common.h, not after. 43 #endif 44 #include "c-family/c-common.h" 45 #include "diagnostic.h" 46 47 #include "name-lookup.h" 48 49 /* Usage of TREE_LANG_FLAG_?: 50 0: IDENTIFIER_MARKED (IDENTIFIER_NODEs) 51 NEW_EXPR_USE_GLOBAL (in NEW_EXPR). 52 DELETE_EXPR_USE_GLOBAL (in DELETE_EXPR). 53 COMPOUND_EXPR_OVERLOADED (in COMPOUND_EXPR). 54 TREE_INDIRECT_USING (in NAMESPACE_DECL). 55 CLEANUP_P (in TRY_BLOCK) 56 AGGR_INIT_VIA_CTOR_P (in AGGR_INIT_EXPR) 57 PTRMEM_OK_P (in ADDR_EXPR, OFFSET_REF) 58 PAREN_STRING_LITERAL (in STRING_CST) 59 DECL_PRETTY_FUNCTION_P (in VAR_DECL) 60 KOENIG_LOOKUP_P (in CALL_EXPR) 61 STATEMENT_LIST_NO_SCOPE (in STATEMENT_LIST). 62 EXPR_STMT_STMT_EXPR_RESULT (in EXPR_STMT) 63 STMT_EXPR_NO_SCOPE (in STMT_EXPR) 64 BIND_EXPR_TRY_BLOCK (in BIND_EXPR) 65 TYPENAME_IS_ENUM_P (in TYPENAME_TYPE) 66 REFERENCE_REF_P (in INDIRECT_EXPR) 67 QUALIFIED_NAME_IS_TEMPLATE (in SCOPE_REF) 68 OMP_FOR_GIMPLIFYING_P (in OMP_FOR) 69 BASELINK_QUALIFIED_P (in BASELINK) 70 TARGET_EXPR_IMPLICIT_P (in TARGET_EXPR) 71 TEMPLATE_PARM_PARAMETER_PACK (in TEMPLATE_PARM_INDEX) 72 ATTR_IS_DEPENDENT (in the TREE_LIST for an attribute) 73 CONSTRUCTOR_IS_DIRECT_INIT (in CONSTRUCTOR) 74 LAMBDA_EXPR_CAPTURES_THIS_P (in LAMBDA_EXPR) 75 DECLTYPE_FOR_LAMBDA_CAPTURE (in DECLTYPE_TYPE) 76 VEC_INIT_EXPR_IS_CONSTEXPR (in VEC_INIT_EXPR) 77 1: IDENTIFIER_VIRTUAL_P (in IDENTIFIER_NODE) 78 TI_PENDING_TEMPLATE_FLAG. 79 TEMPLATE_PARMS_FOR_INLINE. 80 DELETE_EXPR_USE_VEC (in DELETE_EXPR). 81 (TREE_CALLS_NEW) (in _EXPR or _REF) (commented-out). 82 ICS_ELLIPSIS_FLAG (in _CONV) 83 DECL_INITIALIZED_P (in VAR_DECL) 84 TYPENAME_IS_CLASS_P (in TYPENAME_TYPE) 85 STMT_IS_FULL_EXPR_P (in _STMT) 86 TARGET_EXPR_LIST_INIT_P (in TARGET_EXPR) 87 LAMBDA_EXPR_MUTABLE_P (in LAMBDA_EXPR) 88 DECLTYPE_FOR_LAMBDA_RETURN (in DECLTYPE_TYPE) 89 2: IDENTIFIER_OPNAME_P (in IDENTIFIER_NODE) 90 ICS_THIS_FLAG (in _CONV) 91 DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (in VAR_DECL) 92 STATEMENT_LIST_TRY_BLOCK (in STATEMENT_LIST) 93 TYPENAME_IS_RESOLVING_P (in TYPE_NAME_TYPE) 94 LAMBDA_EXPR_DEDUCE_RETURN_TYPE_P (in LAMBDA_EXPR) 95 TARGET_EXPR_DIRECT_INIT_P (in TARGET_EXPR) 96 3: (TREE_REFERENCE_EXPR) (in NON_LVALUE_EXPR) (commented-out). 97 ICS_BAD_FLAG (in _CONV) 98 FN_TRY_BLOCK_P (in TRY_BLOCK) 99 IDENTIFIER_CTOR_OR_DTOR_P (in IDENTIFIER_NODE) 100 BIND_EXPR_BODY_BLOCK (in BIND_EXPR) 101 DECL_NON_TRIVIALLY_INITIALIZED_P (in VAR_DECL) 102 4: TREE_HAS_CONSTRUCTOR (in INDIRECT_REF, SAVE_EXPR, CONSTRUCTOR, 103 or FIELD_DECL). 104 IDENTIFIER_TYPENAME_P (in IDENTIFIER_NODE) 105 DECL_TINFO_P (in VAR_DECL) 106 5: C_IS_RESERVED_WORD (in IDENTIFIER_NODE) 107 DECL_VTABLE_OR_VTT_P (in VAR_DECL) 108 6: IDENTIFIER_REPO_CHOSEN (in IDENTIFIER_NODE) 109 DECL_CONSTRUCTION_VTABLE_P (in VAR_DECL) 110 TYPE_MARKED_P (in _TYPE) 111 112 Usage of TYPE_LANG_FLAG_?: 113 0: TYPE_DEPENDENT_P 114 1: TYPE_HAS_USER_CONSTRUCTOR. 115 2: unused 116 3: TYPE_FOR_JAVA. 117 4: TYPE_HAS_NONTRIVIAL_DESTRUCTOR 118 5: CLASS_TYPE_P (in RECORD_TYPE and UNION_TYPE) 119 ENUM_FIXED_UNDERLYING_TYPE_P (in ENUMERAL_TYPE) 120 6: TYPE_DEPENDENT_P_VALID 121 122 Usage of DECL_LANG_FLAG_?: 123 0: DECL_ERROR_REPORTED (in VAR_DECL). 124 DECL_TEMPLATE_PARM_P (in PARM_DECL, CONST_DECL, TYPE_DECL, or TEMPLATE_DECL) 125 DECL_LOCAL_FUNCTION_P (in FUNCTION_DECL) 126 DECL_MUTABLE_P (in FIELD_DECL) 127 DECL_DEPENDENT_P (in USING_DECL) 128 1: C_TYPEDEF_EXPLICITLY_SIGNED (in TYPE_DECL). 129 DECL_TEMPLATE_INSTANTIATED (in a VAR_DECL or a FUNCTION_DECL) 130 DECL_MEMBER_TEMPLATE_P (in TEMPLATE_DECL) 131 FUNCTION_PARAMETER_PACK_P (in PARM_DECL) 132 2: DECL_THIS_EXTERN (in VAR_DECL or FUNCTION_DECL). 133 DECL_IMPLICIT_TYPEDEF_P (in a TYPE_DECL) 134 3: DECL_IN_AGGR_P. 135 4: DECL_C_BIT_FIELD (in a FIELD_DECL) 136 DECL_ANON_UNION_VAR_P (in a VAR_DECL) 137 DECL_SELF_REFERENCE_P (in a TYPE_DECL) 138 DECL_INVALID_OVERRIDER_P (in a FUNCTION_DECL) 139 5: DECL_INTERFACE_KNOWN. 140 6: DECL_THIS_STATIC (in VAR_DECL or FUNCTION_DECL). 141 DECL_FIELD_IS_BASE (in FIELD_DECL) 142 7: DECL_DEAD_FOR_LOCAL (in VAR_DECL). 143 DECL_THUNK_P (in a member FUNCTION_DECL) 144 DECL_NORMAL_CAPTURE_P (in FIELD_DECL) 145 8: DECL_DECLARED_CONSTEXPR_P (in VAR_DECL, FUNCTION_DECL) 146 147 Usage of language-independent fields in a language-dependent manner: 148 149 TYPE_ALIAS_SET 150 This field is used by TYPENAME_TYPEs, TEMPLATE_TYPE_PARMs, and so 151 forth as a substitute for the mark bits provided in `lang_type'. 152 At present, only the six low-order bits are used. 153 154 TYPE_LANG_SLOT_1 155 For an ENUMERAL_TYPE, this is ENUM_TEMPLATE_INFO. 156 For a FUNCTION_TYPE or METHOD_TYPE, this is TYPE_RAISES_EXCEPTIONS 157 158 BINFO_VIRTUALS 159 For a binfo, this is a TREE_LIST. There is an entry for each 160 virtual function declared either in BINFO or its direct and 161 indirect primary bases. 162 163 The BV_DELTA of each node gives the amount by which to adjust the 164 `this' pointer when calling the function. If the method is an 165 overridden version of a base class method, then it is assumed 166 that, prior to adjustment, the this pointer points to an object 167 of the base class. 168 169 The BV_VCALL_INDEX of each node, if non-NULL, gives the vtable 170 index of the vcall offset for this entry. 171 172 The BV_FN is the declaration for the virtual function itself. 173 174 If BV_LOST_PRIMARY is set, it means that this entry is for a lost 175 primary virtual base and can be left null in the vtable. 176 177 BINFO_VTABLE 178 This is an expression with POINTER_TYPE that gives the value 179 to which the vptr should be initialized. Use get_vtbl_decl_for_binfo 180 to extract the VAR_DECL for the complete vtable. 181 182 DECL_VINDEX 183 This field is NULL for a non-virtual function. For a virtual 184 function, it is eventually set to an INTEGER_CST indicating the 185 index in the vtable at which this function can be found. When 186 a virtual function is declared, but before it is known what 187 function is overridden, this field is the error_mark_node. 188 189 Temporarily, it may be set to a TREE_LIST whose TREE_VALUE is 190 the virtual function this one overrides, and whose TREE_CHAIN is 191 the old DECL_VINDEX. */ 192 193 /* Language-specific tree checkers. */ 194 195 #define VAR_OR_FUNCTION_DECL_CHECK(NODE) \ 196 TREE_CHECK2(NODE,VAR_DECL,FUNCTION_DECL) 197 198 #define VAR_FUNCTION_OR_PARM_DECL_CHECK(NODE) \ 199 TREE_CHECK3(NODE,VAR_DECL,FUNCTION_DECL,PARM_DECL) 200 201 #define VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK(NODE) \ 202 TREE_CHECK4(NODE,VAR_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL) 203 204 #define BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK(NODE) \ 205 TREE_CHECK(NODE,BOUND_TEMPLATE_TEMPLATE_PARM) 206 207 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007) 208 #define THUNK_FUNCTION_CHECK(NODE) __extension__ \ 209 ({ __typeof (NODE) const __t = (NODE); \ 210 if (TREE_CODE (__t) != FUNCTION_DECL || !__t->decl_common.lang_specific \ 211 || !__t->decl_common.lang_specific->u.fn.thunk_p) \ 212 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, 0); \ 213 __t; }) 214 #else 215 #define THUNK_FUNCTION_CHECK(NODE) (NODE) 216 #endif 217 218 /* Language-dependent contents of an identifier. */ 220 221 struct GTY(()) lang_identifier { 222 struct c_common_identifier c_common; 223 cxx_binding *namespace_bindings; 224 cxx_binding *bindings; 225 tree class_template_info; 226 tree label_value; 227 }; 228 229 /* In an IDENTIFIER_NODE, nonzero if this identifier is actually a 230 keyword. C_RID_CODE (node) is then the RID_* value of the keyword, 231 and C_RID_YYCODE is the token number wanted by Yacc. */ 232 233 #define C_IS_RESERVED_WORD(ID) TREE_LANG_FLAG_5 (ID) 234 235 #define LANG_IDENTIFIER_CAST(NODE) \ 236 ((struct lang_identifier*)IDENTIFIER_NODE_CHECK (NODE)) 237 238 struct GTY(()) template_parm_index_s { 239 struct tree_common common; 240 int index; 241 int level; 242 int orig_level; 243 int num_siblings; 244 tree decl; 245 }; 246 typedef struct template_parm_index_s template_parm_index; 247 248 struct GTY(()) ptrmem_cst { 249 struct tree_common common; 250 tree member; 251 }; 252 typedef struct ptrmem_cst * ptrmem_cst_t; 253 254 #define IDENTIFIER_GLOBAL_VALUE(NODE) \ 255 namespace_binding ((NODE), global_namespace) 256 #define SET_IDENTIFIER_GLOBAL_VALUE(NODE, VAL) \ 257 set_namespace_binding ((NODE), global_namespace, (VAL)) 258 #define IDENTIFIER_NAMESPACE_VALUE(NODE) \ 259 namespace_binding ((NODE), current_namespace) 260 #define SET_IDENTIFIER_NAMESPACE_VALUE(NODE, VAL) \ 261 set_namespace_binding ((NODE), current_namespace, (VAL)) 262 263 #define CLEANUP_P(NODE) TREE_LANG_FLAG_0 (TRY_BLOCK_CHECK (NODE)) 264 265 #define BIND_EXPR_TRY_BLOCK(NODE) \ 266 TREE_LANG_FLAG_0 (BIND_EXPR_CHECK (NODE)) 267 268 /* Used to mark the block around the member initializers and cleanups. */ 269 #define BIND_EXPR_BODY_BLOCK(NODE) \ 270 TREE_LANG_FLAG_3 (BIND_EXPR_CHECK (NODE)) 271 #define FUNCTION_NEEDS_BODY_BLOCK(NODE) \ 272 (DECL_CONSTRUCTOR_P (NODE) || DECL_DESTRUCTOR_P (NODE)) 273 274 #define STATEMENT_LIST_NO_SCOPE(NODE) \ 275 TREE_LANG_FLAG_0 (STATEMENT_LIST_CHECK (NODE)) 276 #define STATEMENT_LIST_TRY_BLOCK(NODE) \ 277 TREE_LANG_FLAG_2 (STATEMENT_LIST_CHECK (NODE)) 278 279 /* Nonzero if this statement should be considered a full-expression, 280 i.e., if temporaries created during this statement should have 281 their destructors run at the end of this statement. */ 282 #define STMT_IS_FULL_EXPR_P(NODE) TREE_LANG_FLAG_1 ((NODE)) 283 284 /* Marks the result of a statement expression. */ 285 #define EXPR_STMT_STMT_EXPR_RESULT(NODE) \ 286 TREE_LANG_FLAG_0 (EXPR_STMT_CHECK (NODE)) 287 288 /* Nonzero if this statement-expression does not have an associated scope. */ 289 #define STMT_EXPR_NO_SCOPE(NODE) \ 290 TREE_LANG_FLAG_0 (STMT_EXPR_CHECK (NODE)) 291 292 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, in the usual 293 sense of `same'. */ 294 #define same_type_p(TYPE1, TYPE2) \ 295 comptypes ((TYPE1), (TYPE2), COMPARE_STRICT) 296 297 /* Nonzero if we are presently building a statement tree, rather 298 than expanding each statement as we encounter it. */ 299 #define building_stmt_tree() (cur_stmt_list != NULL_TREE) 300 301 /* Returns nonzero iff NODE is a declaration for the global function 302 `main'. */ 303 #define DECL_MAIN_P(NODE) \ 304 (DECL_EXTERN_C_FUNCTION_P (NODE) \ 305 && DECL_NAME (NODE) != NULL_TREE \ 306 && MAIN_NAME_P (DECL_NAME (NODE)) \ 307 && flag_hosted) 308 309 /* The overloaded FUNCTION_DECL. */ 310 #define OVL_FUNCTION(NODE) \ 311 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->function) 312 #define OVL_CHAIN(NODE) TREE_CHAIN (NODE) 313 /* Polymorphic access to FUNCTION and CHAIN. */ 314 #define OVL_CURRENT(NODE) \ 315 ((TREE_CODE (NODE) == OVERLOAD) ? OVL_FUNCTION (NODE) : (NODE)) 316 #define OVL_NEXT(NODE) \ 317 ((TREE_CODE (NODE) == OVERLOAD) ? TREE_CHAIN (NODE) : NULL_TREE) 318 /* If set, this was imported in a using declaration. 319 This is not to confuse with being used somewhere, which 320 is not important for this node. */ 321 #define OVL_USED(NODE) TREE_USED (NODE) 322 323 struct GTY(()) tree_overload { 324 struct tree_common common; 325 tree function; 326 }; 327 328 /* Returns true iff NODE is a BASELINK. */ 329 #define BASELINK_P(NODE) \ 330 (TREE_CODE (NODE) == BASELINK) 331 /* The BINFO indicating the base from which the BASELINK_FUNCTIONS came. */ 332 #define BASELINK_BINFO(NODE) \ 333 (((struct tree_baselink*) BASELINK_CHECK (NODE))->binfo) 334 /* The functions referred to by the BASELINK; either a FUNCTION_DECL, 335 a TEMPLATE_DECL, an OVERLOAD, or a TEMPLATE_ID_EXPR. */ 336 #define BASELINK_FUNCTIONS(NODE) \ 337 (((struct tree_baselink*) BASELINK_CHECK (NODE))->functions) 338 /* The BINFO in which the search for the functions indicated by this baselink 339 began. This base is used to determine the accessibility of functions 340 selected by overload resolution. */ 341 #define BASELINK_ACCESS_BINFO(NODE) \ 342 (((struct tree_baselink*) BASELINK_CHECK (NODE))->access_binfo) 343 /* For a type-conversion operator, the BASELINK_OPTYPE indicates the type 344 to which the conversion should occur. This value is important if 345 the BASELINK_FUNCTIONS include a template conversion operator -- 346 the BASELINK_OPTYPE can be used to determine what type the user 347 requested. */ 348 #define BASELINK_OPTYPE(NODE) \ 349 (TREE_CHAIN (BASELINK_CHECK (NODE))) 350 /* Nonzero if this baselink was from a qualified lookup. */ 351 #define BASELINK_QUALIFIED_P(NODE) \ 352 TREE_LANG_FLAG_0 (BASELINK_CHECK (NODE)) 353 354 struct GTY(()) tree_baselink { 355 struct tree_common common; 356 tree binfo; 357 tree functions; 358 tree access_binfo; 359 }; 360 361 /* The different kinds of ids that we encounter. */ 362 363 typedef enum cp_id_kind 364 { 365 /* Not an id at all. */ 366 CP_ID_KIND_NONE, 367 /* An unqualified-id that is not a template-id. */ 368 CP_ID_KIND_UNQUALIFIED, 369 /* An unqualified-id that is a dependent name. */ 370 CP_ID_KIND_UNQUALIFIED_DEPENDENT, 371 /* An unqualified template-id. */ 372 CP_ID_KIND_TEMPLATE_ID, 373 /* A qualified-id. */ 374 CP_ID_KIND_QUALIFIED 375 } cp_id_kind; 376 377 378 /* The various kinds of C++0x warnings we encounter. */ 379 380 typedef enum cpp0x_warn_str 381 { 382 /* extended initializer lists */ 383 CPP0X_INITIALIZER_LISTS, 384 /* explicit conversion operators */ 385 CPP0X_EXPLICIT_CONVERSION, 386 /* variadic templates */ 387 CPP0X_VARIADIC_TEMPLATES, 388 /* lambda expressions */ 389 CPP0X_LAMBDA_EXPR, 390 /* C++0x auto */ 391 CPP0X_AUTO, 392 /* scoped enums */ 393 CPP0X_SCOPED_ENUMS, 394 /* defaulted and deleted functions */ 395 CPP0X_DEFAULTED_DELETED, 396 /* inline namespaces */ 397 CPP0X_INLINE_NAMESPACES 398 } cpp0x_warn_str; 399 400 /* The various kinds of operation used by composite_pointer_type. */ 401 402 typedef enum composite_pointer_operation 403 { 404 /* comparison */ 405 CPO_COMPARISON, 406 /* conversion */ 407 CPO_CONVERSION, 408 /* conditional expression */ 409 CPO_CONDITIONAL_EXPR 410 } composite_pointer_operation; 411 412 /* Possible cases of expression list used by build_x_compound_expr_from_list. */ 413 typedef enum expr_list_kind { 414 ELK_INIT, /* initializer */ 415 ELK_MEM_INIT, /* member initializer */ 416 ELK_FUNC_CAST /* functional cast */ 417 } expr_list_kind; 418 419 /* Possible cases of implicit bad rhs conversions. */ 420 typedef enum impl_conv_rhs { 421 ICR_DEFAULT_ARGUMENT, /* default argument */ 422 ICR_CONVERTING, /* converting */ 423 ICR_INIT, /* initialization */ 424 ICR_ARGPASS, /* argument passing */ 425 ICR_RETURN, /* return */ 426 ICR_ASSIGN /* assignment */ 427 } impl_conv_rhs; 428 429 /* Possible cases of implicit or explicit bad conversions to void. */ 430 typedef enum impl_conv_void { 431 ICV_CAST, /* (explicit) conversion to void */ 432 ICV_SECOND_OF_COND, /* second operand of conditional expression */ 433 ICV_THIRD_OF_COND, /* third operand of conditional expression */ 434 ICV_RIGHT_OF_COMMA, /* right operand of comma operator */ 435 ICV_LEFT_OF_COMMA, /* left operand of comma operator */ 436 ICV_STATEMENT, /* statement */ 437 ICV_THIRD_IN_FOR /* for increment expression */ 438 } impl_conv_void; 439 440 /* Macros for access to language-specific slots in an identifier. */ 441 442 #define IDENTIFIER_NAMESPACE_BINDINGS(NODE) \ 443 (LANG_IDENTIFIER_CAST (NODE)->namespace_bindings) 444 #define IDENTIFIER_TEMPLATE(NODE) \ 445 (LANG_IDENTIFIER_CAST (NODE)->class_template_info) 446 447 /* The IDENTIFIER_BINDING is the innermost cxx_binding for the 448 identifier. It's PREVIOUS is the next outermost binding. Each 449 VALUE field is a DECL for the associated declaration. Thus, 450 name lookup consists simply of pulling off the node at the front 451 of the list (modulo oddities for looking up the names of types, 452 and such.) You can use SCOPE field to determine the scope 453 that bound the name. */ 454 #define IDENTIFIER_BINDING(NODE) \ 455 (LANG_IDENTIFIER_CAST (NODE)->bindings) 456 457 /* TREE_TYPE only indicates on local and class scope the current 458 type. For namespace scope, the presence of a type in any namespace 459 is indicated with global_type_node, and the real type behind must 460 be found through lookup. */ 461 #define IDENTIFIER_TYPE_VALUE(NODE) identifier_type_value (NODE) 462 #define REAL_IDENTIFIER_TYPE_VALUE(NODE) TREE_TYPE (NODE) 463 #define SET_IDENTIFIER_TYPE_VALUE(NODE,TYPE) (TREE_TYPE (NODE) = (TYPE)) 464 #define IDENTIFIER_HAS_TYPE_VALUE(NODE) (IDENTIFIER_TYPE_VALUE (NODE) ? 1 : 0) 465 466 #define IDENTIFIER_LABEL_VALUE(NODE) \ 467 (LANG_IDENTIFIER_CAST (NODE)->label_value) 468 #define SET_IDENTIFIER_LABEL_VALUE(NODE, VALUE) \ 469 IDENTIFIER_LABEL_VALUE (NODE) = (VALUE) 470 471 /* Nonzero if this identifier is used as a virtual function name somewhere 472 (optimizes searches). */ 473 #define IDENTIFIER_VIRTUAL_P(NODE) TREE_LANG_FLAG_1 (NODE) 474 475 /* Nonzero if this identifier is the prefix for a mangled C++ operator 476 name. */ 477 #define IDENTIFIER_OPNAME_P(NODE) TREE_LANG_FLAG_2 (NODE) 478 479 /* Nonzero if this identifier is the name of a type-conversion 480 operator. */ 481 #define IDENTIFIER_TYPENAME_P(NODE) \ 482 TREE_LANG_FLAG_4 (NODE) 483 484 /* Nonzero if this identifier is the name of a constructor or 485 destructor. */ 486 #define IDENTIFIER_CTOR_OR_DTOR_P(NODE) \ 487 TREE_LANG_FLAG_3 (NODE) 488 489 /* True iff NAME is the DECL_ASSEMBLER_NAME for an entity with vague 490 linkage which the prelinker has assigned to this translation 491 unit. */ 492 #define IDENTIFIER_REPO_CHOSEN(NAME) \ 493 (TREE_LANG_FLAG_6 (NAME)) 494 495 /* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */ 496 #define C_TYPE_FIELDS_READONLY(TYPE) \ 497 (LANG_TYPE_CLASS_CHECK (TYPE)->fields_readonly) 498 499 /* The tokens stored in the default argument. */ 500 501 #define DEFARG_TOKENS(NODE) \ 502 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->tokens) 503 #define DEFARG_INSTANTIATIONS(NODE) \ 504 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->instantiations) 505 506 struct GTY (()) tree_default_arg { 507 struct tree_common common; 508 struct cp_token_cache *tokens; 509 VEC(tree,gc) *instantiations; 510 }; 511 512 /* The condition associated with the static assertion. This must be 513 an integral constant expression. */ 514 #define STATIC_ASSERT_CONDITION(NODE) \ 515 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->condition) 516 517 /* The message associated with the static assertion. This must be a 518 string constant, which will be emitted as an error message when the 519 static assert condition is false. */ 520 #define STATIC_ASSERT_MESSAGE(NODE) \ 521 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->message) 522 523 /* Source location information for a static assertion. */ 524 #define STATIC_ASSERT_SOURCE_LOCATION(NODE) \ 525 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->location) 526 527 struct GTY (()) tree_static_assert { 528 struct tree_common common; 529 tree condition; 530 tree message; 531 location_t location; 532 }; 533 534 struct GTY (()) tree_argument_pack_select { 535 struct tree_common common; 536 tree argument_pack; 537 int index; 538 }; 539 540 /* The different kinds of traits that we encounter. */ 541 542 typedef enum cp_trait_kind 543 { 544 CPTK_HAS_NOTHROW_ASSIGN, 545 CPTK_HAS_NOTHROW_CONSTRUCTOR, 546 CPTK_HAS_NOTHROW_COPY, 547 CPTK_HAS_TRIVIAL_ASSIGN, 548 CPTK_HAS_TRIVIAL_CONSTRUCTOR, 549 CPTK_HAS_TRIVIAL_COPY, 550 CPTK_HAS_TRIVIAL_DESTRUCTOR, 551 CPTK_HAS_VIRTUAL_DESTRUCTOR, 552 CPTK_IS_ABSTRACT, 553 CPTK_IS_BASE_OF, 554 CPTK_IS_CLASS, 555 CPTK_IS_CONVERTIBLE_TO, 556 CPTK_IS_EMPTY, 557 CPTK_IS_ENUM, 558 CPTK_IS_POD, 559 CPTK_IS_POLYMORPHIC, 560 CPTK_IS_STD_LAYOUT, 561 CPTK_IS_TRIVIAL, 562 CPTK_IS_LITERAL_TYPE, 563 CPTK_IS_UNION 564 } cp_trait_kind; 565 566 /* The types that we are processing. */ 567 #define TRAIT_EXPR_TYPE1(NODE) \ 568 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type1) 569 570 #define TRAIT_EXPR_TYPE2(NODE) \ 571 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type2) 572 573 /* The specific trait that we are processing. */ 574 #define TRAIT_EXPR_KIND(NODE) \ 575 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->kind) 576 577 struct GTY (()) tree_trait_expr { 578 struct tree_common common; 579 tree type1; 580 tree type2; 581 enum cp_trait_kind kind; 582 }; 583 584 /* Based off of TYPE_ANONYMOUS_P. */ 585 #define LAMBDA_TYPE_P(NODE) \ 586 (CLASS_TYPE_P (NODE) && LAMBDANAME_P (TYPE_LINKAGE_IDENTIFIER (NODE))) 587 588 /* Test if FUNCTION_DECL is a lambda function. */ 589 #define LAMBDA_FUNCTION_P(FNDECL) \ 590 (DECL_OVERLOADED_OPERATOR_P (FNDECL) == CALL_EXPR \ 591 && LAMBDA_TYPE_P (CP_DECL_CONTEXT (FNDECL))) 592 593 enum cp_lambda_default_capture_mode_type { 594 CPLD_NONE, 595 CPLD_COPY, 596 CPLD_REFERENCE 597 }; 598 599 /* The method of default capture, if any. */ 600 #define LAMBDA_EXPR_DEFAULT_CAPTURE_MODE(NODE) \ 601 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->default_capture_mode) 602 603 /* The capture-list, including `this'. Each capture is stored as a FIELD_DECL 604 * so that the name, type, and field are all together, whether or not it has 605 * been added to the lambda's class type. 606 TREE_LIST: 607 TREE_PURPOSE: The FIELD_DECL for this capture. 608 TREE_VALUE: The initializer. This is part of a GNU extension. */ 609 #define LAMBDA_EXPR_CAPTURE_LIST(NODE) \ 610 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->capture_list) 611 612 /* The node in the capture-list that holds the 'this' capture. */ 613 #define LAMBDA_EXPR_THIS_CAPTURE(NODE) \ 614 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->this_capture) 615 616 /* Predicate tracking whether `this' is in the effective capture set. */ 617 #define LAMBDA_EXPR_CAPTURES_THIS_P(NODE) \ 618 LAMBDA_EXPR_THIS_CAPTURE(NODE) 619 620 /* Predicate tracking whether the lambda was declared 'mutable'. */ 621 #define LAMBDA_EXPR_MUTABLE_P(NODE) \ 622 TREE_LANG_FLAG_1 (LAMBDA_EXPR_CHECK (NODE)) 623 624 /* True iff we should try to deduce the lambda return type from any return 625 statement. */ 626 #define LAMBDA_EXPR_DEDUCE_RETURN_TYPE_P(NODE) \ 627 TREE_LANG_FLAG_2 (LAMBDA_EXPR_CHECK (NODE)) 628 629 /* The return type in the expression. 630 * NULL_TREE indicates that none was specified. */ 631 #define LAMBDA_EXPR_RETURN_TYPE(NODE) \ 632 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->return_type) 633 634 /* The source location of the lambda. */ 635 #define LAMBDA_EXPR_LOCATION(NODE) \ 636 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->locus) 637 638 /* The mangling scope for the lambda: FUNCTION_DECL, PARM_DECL, VAR_DECL, 639 FIELD_DECL or NULL_TREE. If this is NULL_TREE, we have no linkage. */ 640 #define LAMBDA_EXPR_EXTRA_SCOPE(NODE) \ 641 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->extra_scope) 642 643 /* If EXTRA_SCOPE, this is the number of the lambda within that scope. */ 644 #define LAMBDA_EXPR_DISCRIMINATOR(NODE) \ 645 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->discriminator) 646 647 struct GTY (()) tree_lambda_expr 648 { 649 struct tree_common common; 650 location_t locus; 651 enum cp_lambda_default_capture_mode_type default_capture_mode; 652 tree capture_list; 653 tree this_capture; 654 tree return_type; 655 tree extra_scope; 656 int discriminator; 657 }; 658 659 /* A (typedef,context,usage location) triplet. 660 It represents a typedef used through a 661 context at a given source location. 662 e.g. 663 struct foo { 664 typedef int myint; 665 }; 666 667 struct bar { 668 foo::myint v; // #1<-- this location. 669 }; 670 671 In bar, the triplet will be (myint, foo, #1). 672 */ 673 struct GTY(()) qualified_typedef_usage_s { 674 tree typedef_decl; 675 tree context; 676 location_t locus; 677 }; 678 typedef struct qualified_typedef_usage_s qualified_typedef_usage_t; 679 DEF_VEC_O (qualified_typedef_usage_t); 680 DEF_VEC_ALLOC_O (qualified_typedef_usage_t,gc); 681 682 struct GTY(()) tree_template_info { 683 struct tree_common common; 684 VEC(qualified_typedef_usage_t,gc) *typedefs_needing_access_checking; 685 }; 686 687 enum cp_tree_node_structure_enum { 688 TS_CP_GENERIC, 689 TS_CP_IDENTIFIER, 690 TS_CP_TPI, 691 TS_CP_PTRMEM, 692 TS_CP_BINDING, 693 TS_CP_OVERLOAD, 694 TS_CP_BASELINK, 695 TS_CP_WRAPPER, 696 TS_CP_DEFAULT_ARG, 697 TS_CP_STATIC_ASSERT, 698 TS_CP_ARGUMENT_PACK_SELECT, 699 TS_CP_TRAIT_EXPR, 700 TS_CP_LAMBDA_EXPR, 701 TS_CP_TEMPLATE_INFO, 702 LAST_TS_CP_ENUM 703 }; 704 705 /* The resulting tree type. */ 706 union GTY((desc ("cp_tree_node_structure (&%h)"), 707 chain_next ("(union lang_tree_node *)TREE_CHAIN (&%h.generic)"))) lang_tree_node { 708 union tree_node GTY ((tag ("TS_CP_GENERIC"), 709 desc ("tree_node_structure (&%h)"))) generic; 710 struct template_parm_index_s GTY ((tag ("TS_CP_TPI"))) tpi; 711 struct ptrmem_cst GTY ((tag ("TS_CP_PTRMEM"))) ptrmem; 712 struct tree_overload GTY ((tag ("TS_CP_OVERLOAD"))) overload; 713 struct tree_baselink GTY ((tag ("TS_CP_BASELINK"))) baselink; 714 struct tree_default_arg GTY ((tag ("TS_CP_DEFAULT_ARG"))) default_arg; 715 struct lang_identifier GTY ((tag ("TS_CP_IDENTIFIER"))) identifier; 716 struct tree_static_assert GTY ((tag ("TS_CP_STATIC_ASSERT"))) 717 static_assertion; 718 struct tree_argument_pack_select GTY ((tag ("TS_CP_ARGUMENT_PACK_SELECT"))) 719 argument_pack_select; 720 struct tree_trait_expr GTY ((tag ("TS_CP_TRAIT_EXPR"))) 721 trait_expression; 722 struct tree_lambda_expr GTY ((tag ("TS_CP_LAMBDA_EXPR"))) 723 lambda_expression; 724 struct tree_template_info GTY ((tag ("TS_CP_TEMPLATE_INFO"))) 725 template_info; 726 }; 727 728 729 enum cp_tree_index 731 { 732 CPTI_JAVA_BYTE_TYPE, 733 CPTI_JAVA_SHORT_TYPE, 734 CPTI_JAVA_INT_TYPE, 735 CPTI_JAVA_LONG_TYPE, 736 CPTI_JAVA_FLOAT_TYPE, 737 CPTI_JAVA_DOUBLE_TYPE, 738 CPTI_JAVA_CHAR_TYPE, 739 CPTI_JAVA_BOOLEAN_TYPE, 740 741 CPTI_WCHAR_DECL, 742 CPTI_VTABLE_ENTRY_TYPE, 743 CPTI_DELTA_TYPE, 744 CPTI_VTABLE_INDEX_TYPE, 745 CPTI_CLEANUP_TYPE, 746 CPTI_VTT_PARM_TYPE, 747 748 CPTI_CLASS_TYPE, 749 CPTI_UNKNOWN_TYPE, 750 CPTI_INIT_LIST_TYPE, 751 CPTI_VTBL_TYPE, 752 CPTI_VTBL_PTR_TYPE, 753 CPTI_STD, 754 CPTI_ABI, 755 CPTI_CONST_TYPE_INFO_TYPE, 756 CPTI_TYPE_INFO_PTR_TYPE, 757 CPTI_ABORT_FNDECL, 758 CPTI_GLOBAL_DELETE_FNDECL, 759 CPTI_AGGR_TAG, 760 761 CPTI_CTOR_IDENTIFIER, 762 CPTI_COMPLETE_CTOR_IDENTIFIER, 763 CPTI_BASE_CTOR_IDENTIFIER, 764 CPTI_DTOR_IDENTIFIER, 765 CPTI_COMPLETE_DTOR_IDENTIFIER, 766 CPTI_BASE_DTOR_IDENTIFIER, 767 CPTI_DELETING_DTOR_IDENTIFIER, 768 CPTI_DELTA_IDENTIFIER, 769 CPTI_IN_CHARGE_IDENTIFIER, 770 CPTI_VTT_PARM_IDENTIFIER, 771 CPTI_NELTS_IDENTIFIER, 772 CPTI_THIS_IDENTIFIER, 773 CPTI_PFN_IDENTIFIER, 774 CPTI_VPTR_IDENTIFIER, 775 CPTI_STD_IDENTIFIER, 776 777 CPTI_LANG_NAME_C, 778 CPTI_LANG_NAME_CPLUSPLUS, 779 CPTI_LANG_NAME_JAVA, 780 781 CPTI_EMPTY_EXCEPT_SPEC, 782 CPTI_NOEXCEPT_TRUE_SPEC, 783 CPTI_NOEXCEPT_FALSE_SPEC, 784 CPTI_JCLASS, 785 CPTI_TERMINATE, 786 CPTI_CALL_UNEXPECTED, 787 CPTI_ATEXIT_FN_PTR_TYPE, 788 CPTI_ATEXIT, 789 CPTI_DSO_HANDLE, 790 CPTI_DCAST, 791 792 CPTI_KEYED_CLASSES, 793 794 CPTI_NULLPTR, 795 CPTI_NULLPTR_TYPE, 796 797 CPTI_MAX 798 }; 799 800 extern GTY(()) tree cp_global_trees[CPTI_MAX]; 801 802 #define java_byte_type_node cp_global_trees[CPTI_JAVA_BYTE_TYPE] 803 #define java_short_type_node cp_global_trees[CPTI_JAVA_SHORT_TYPE] 804 #define java_int_type_node cp_global_trees[CPTI_JAVA_INT_TYPE] 805 #define java_long_type_node cp_global_trees[CPTI_JAVA_LONG_TYPE] 806 #define java_float_type_node cp_global_trees[CPTI_JAVA_FLOAT_TYPE] 807 #define java_double_type_node cp_global_trees[CPTI_JAVA_DOUBLE_TYPE] 808 #define java_char_type_node cp_global_trees[CPTI_JAVA_CHAR_TYPE] 809 #define java_boolean_type_node cp_global_trees[CPTI_JAVA_BOOLEAN_TYPE] 810 811 #define wchar_decl_node cp_global_trees[CPTI_WCHAR_DECL] 812 #define vtable_entry_type cp_global_trees[CPTI_VTABLE_ENTRY_TYPE] 813 /* The type used to represent an offset by which to adjust the `this' 814 pointer in pointer-to-member types. */ 815 #define delta_type_node cp_global_trees[CPTI_DELTA_TYPE] 816 /* The type used to represent an index into the vtable. */ 817 #define vtable_index_type cp_global_trees[CPTI_VTABLE_INDEX_TYPE] 818 819 #define class_type_node cp_global_trees[CPTI_CLASS_TYPE] 820 #define unknown_type_node cp_global_trees[CPTI_UNKNOWN_TYPE] 821 #define init_list_type_node cp_global_trees[CPTI_INIT_LIST_TYPE] 822 #define vtbl_type_node cp_global_trees[CPTI_VTBL_TYPE] 823 #define vtbl_ptr_type_node cp_global_trees[CPTI_VTBL_PTR_TYPE] 824 #define std_node cp_global_trees[CPTI_STD] 825 #define abi_node cp_global_trees[CPTI_ABI] 826 #define const_type_info_type_node cp_global_trees[CPTI_CONST_TYPE_INFO_TYPE] 827 #define type_info_ptr_type cp_global_trees[CPTI_TYPE_INFO_PTR_TYPE] 828 #define abort_fndecl cp_global_trees[CPTI_ABORT_FNDECL] 829 #define global_delete_fndecl cp_global_trees[CPTI_GLOBAL_DELETE_FNDECL] 830 #define current_aggr cp_global_trees[CPTI_AGGR_TAG] 831 #define nullptr_node cp_global_trees[CPTI_NULLPTR] 832 #define nullptr_type_node cp_global_trees[CPTI_NULLPTR_TYPE] 833 834 /* We cache these tree nodes so as to call get_identifier less 835 frequently. */ 836 837 /* The name of a constructor that takes an in-charge parameter to 838 decide whether or not to construct virtual base classes. */ 839 #define ctor_identifier cp_global_trees[CPTI_CTOR_IDENTIFIER] 840 /* The name of a constructor that constructs virtual base classes. */ 841 #define complete_ctor_identifier cp_global_trees[CPTI_COMPLETE_CTOR_IDENTIFIER] 842 /* The name of a constructor that does not construct virtual base classes. */ 843 #define base_ctor_identifier cp_global_trees[CPTI_BASE_CTOR_IDENTIFIER] 844 /* The name of a destructor that takes an in-charge parameter to 845 decide whether or not to destroy virtual base classes and whether 846 or not to delete the object. */ 847 #define dtor_identifier cp_global_trees[CPTI_DTOR_IDENTIFIER] 848 /* The name of a destructor that destroys virtual base classes. */ 849 #define complete_dtor_identifier cp_global_trees[CPTI_COMPLETE_DTOR_IDENTIFIER] 850 /* The name of a destructor that does not destroy virtual base 851 classes. */ 852 #define base_dtor_identifier cp_global_trees[CPTI_BASE_DTOR_IDENTIFIER] 853 /* The name of a destructor that destroys virtual base classes, and 854 then deletes the entire object. */ 855 #define deleting_dtor_identifier cp_global_trees[CPTI_DELETING_DTOR_IDENTIFIER] 856 #define delta_identifier cp_global_trees[CPTI_DELTA_IDENTIFIER] 857 #define in_charge_identifier cp_global_trees[CPTI_IN_CHARGE_IDENTIFIER] 858 /* The name of the parameter that contains a pointer to the VTT to use 859 for this subobject constructor or destructor. */ 860 #define vtt_parm_identifier cp_global_trees[CPTI_VTT_PARM_IDENTIFIER] 861 #define nelts_identifier cp_global_trees[CPTI_NELTS_IDENTIFIER] 862 #define this_identifier cp_global_trees[CPTI_THIS_IDENTIFIER] 863 #define pfn_identifier cp_global_trees[CPTI_PFN_IDENTIFIER] 864 #define vptr_identifier cp_global_trees[CPTI_VPTR_IDENTIFIER] 865 /* The name of the std namespace. */ 866 #define std_identifier cp_global_trees[CPTI_STD_IDENTIFIER] 867 #define lang_name_c cp_global_trees[CPTI_LANG_NAME_C] 868 #define lang_name_cplusplus cp_global_trees[CPTI_LANG_NAME_CPLUSPLUS] 869 #define lang_name_java cp_global_trees[CPTI_LANG_NAME_JAVA] 870 871 /* Exception specifier used for throw(). */ 872 #define empty_except_spec cp_global_trees[CPTI_EMPTY_EXCEPT_SPEC] 873 #define noexcept_true_spec cp_global_trees[CPTI_NOEXCEPT_TRUE_SPEC] 874 #define noexcept_false_spec cp_global_trees[CPTI_NOEXCEPT_FALSE_SPEC] 875 876 /* If non-NULL, a POINTER_TYPE equivalent to (java::lang::Class*). */ 877 #define jclass_node cp_global_trees[CPTI_JCLASS] 878 879 /* The declaration for `std::terminate'. */ 880 #define terminate_node cp_global_trees[CPTI_TERMINATE] 881 882 /* The declaration for "__cxa_call_unexpected". */ 883 #define call_unexpected_node cp_global_trees[CPTI_CALL_UNEXPECTED] 884 885 /* The type of the function-pointer argument to "__cxa_atexit" (or 886 "std::atexit", if "__cxa_atexit" is not being used). */ 887 #define atexit_fn_ptr_type_node cp_global_trees[CPTI_ATEXIT_FN_PTR_TYPE] 888 889 /* A pointer to `std::atexit'. */ 890 #define atexit_node cp_global_trees[CPTI_ATEXIT] 891 892 /* A pointer to `__dso_handle'. */ 893 #define dso_handle_node cp_global_trees[CPTI_DSO_HANDLE] 894 895 /* The declaration of the dynamic_cast runtime. */ 896 #define dynamic_cast_node cp_global_trees[CPTI_DCAST] 897 898 /* The type of a destructor. */ 899 #define cleanup_type cp_global_trees[CPTI_CLEANUP_TYPE] 900 901 /* The type of the vtt parameter passed to subobject constructors and 902 destructors. */ 903 #define vtt_parm_type cp_global_trees[CPTI_VTT_PARM_TYPE] 904 905 /* A TREE_LIST of the dynamic classes whose vtables may have to be 906 emitted in this translation unit. */ 907 908 #define keyed_classes cp_global_trees[CPTI_KEYED_CLASSES] 909 910 /* Node to indicate default access. This must be distinct from the 911 access nodes in tree.h. */ 912 913 #define access_default_node null_node 914 915 /* Global state. */ 916 917 struct GTY(()) saved_scope { 918 VEC(cxx_saved_binding,gc) *old_bindings; 919 tree old_namespace; 920 VEC(tree,gc) *decl_ns_list; 921 tree class_name; 922 tree class_type; 923 tree access_specifier; 924 tree function_decl; 925 VEC(tree,gc) *lang_base; 926 tree lang_name; 927 tree template_parms; 928 struct cp_binding_level *x_previous_class_level; 929 tree x_saved_tree; 930 931 int x_processing_template_decl; 932 int x_processing_specialization; 933 BOOL_BITFIELD x_processing_explicit_instantiation : 1; 934 BOOL_BITFIELD need_pop_function_context : 1; 935 936 int unevaluated_operand; 937 int inhibit_evaluation_warnings; 938 939 struct stmt_tree_s x_stmt_tree; 940 941 struct cp_binding_level *class_bindings; 942 struct cp_binding_level *bindings; 943 944 struct saved_scope *prev; 945 }; 946 947 /* The current open namespace. */ 948 949 #define current_namespace scope_chain->old_namespace 950 951 /* The stack for namespaces of current declarations. */ 952 953 #define decl_namespace_list scope_chain->decl_ns_list 954 955 /* IDENTIFIER_NODE: name of current class */ 956 957 #define current_class_name scope_chain->class_name 958 959 /* _TYPE: the type of the current class */ 960 961 #define current_class_type scope_chain->class_type 962 963 /* When parsing a class definition, the access specifier most recently 964 given by the user, or, if no access specifier was given, the 965 default value appropriate for the kind of class (i.e., struct, 966 class, or union). */ 967 968 #define current_access_specifier scope_chain->access_specifier 969 970 /* Pointer to the top of the language name stack. */ 971 972 #define current_lang_base scope_chain->lang_base 973 #define current_lang_name scope_chain->lang_name 974 975 /* When parsing a template declaration, a TREE_LIST represents the 976 active template parameters. Each node in the list represents one 977 level of template parameters. The innermost level is first in the 978 list. The depth of each level is stored as an INTEGER_CST in the 979 TREE_PURPOSE of each node. The parameters for that level are 980 stored in the TREE_VALUE. */ 981 982 #define current_template_parms scope_chain->template_parms 983 984 #define processing_template_decl scope_chain->x_processing_template_decl 985 #define processing_specialization scope_chain->x_processing_specialization 986 #define processing_explicit_instantiation scope_chain->x_processing_explicit_instantiation 987 988 /* The cached class binding level, from the most recently exited 989 class, or NULL if none. */ 990 991 #define previous_class_level scope_chain->x_previous_class_level 992 993 /* A list of private types mentioned, for deferred access checking. */ 994 995 extern GTY(()) struct saved_scope *scope_chain; 996 997 struct GTY(()) cxx_int_tree_map { 998 unsigned int uid; 999 tree to; 1000 }; 1001 1002 extern unsigned int cxx_int_tree_map_hash (const void *); 1003 extern int cxx_int_tree_map_eq (const void *, const void *); 1004 1005 /* Global state pertinent to the current function. */ 1006 1007 struct GTY(()) language_function { 1008 struct c_language_function base; 1009 1010 tree x_cdtor_label; 1011 tree x_current_class_ptr; 1012 tree x_current_class_ref; 1013 tree x_eh_spec_block; 1014 tree x_in_charge_parm; 1015 tree x_vtt_parm; 1016 tree x_return_value; 1017 1018 BOOL_BITFIELD returns_value : 1; 1019 BOOL_BITFIELD returns_null : 1; 1020 BOOL_BITFIELD returns_abnormally : 1; 1021 BOOL_BITFIELD in_function_try_handler : 1; 1022 BOOL_BITFIELD in_base_initializer : 1; 1023 1024 /* True if this function can throw an exception. */ 1025 BOOL_BITFIELD can_throw : 1; 1026 1027 htab_t GTY((param_is(struct named_label_entry))) x_named_labels; 1028 struct cp_binding_level *bindings; 1029 VEC(tree,gc) *x_local_names; 1030 htab_t GTY((param_is (struct cxx_int_tree_map))) extern_decl_map; 1031 }; 1032 1033 /* The current C++-specific per-function global variables. */ 1034 1035 #define cp_function_chain (cfun->language) 1036 1037 /* In a constructor destructor, the point at which all derived class 1038 destroying/construction has been done. I.e., just before a 1039 constructor returns, or before any base class destroying will be done 1040 in a destructor. */ 1041 1042 #define cdtor_label cp_function_chain->x_cdtor_label 1043 1044 /* When we're processing a member function, current_class_ptr is the 1045 PARM_DECL for the `this' pointer. The current_class_ref is an 1046 expression for `*this'. */ 1047 1048 #define current_class_ptr \ 1049 (cfun && cp_function_chain \ 1050 ? cp_function_chain->x_current_class_ptr : NULL_TREE) 1051 #define current_class_ref \ 1052 ((cfun && cp_function_chain) \ 1053 ? cp_function_chain->x_current_class_ref : NULL_TREE) 1054 1055 /* The EH_SPEC_BLOCK for the exception-specifiers for the current 1056 function, if any. */ 1057 1058 #define current_eh_spec_block cp_function_chain->x_eh_spec_block 1059 1060 /* The `__in_chrg' parameter for the current function. Only used for 1061 constructors and destructors. */ 1062 1063 #define current_in_charge_parm cp_function_chain->x_in_charge_parm 1064 1065 /* The `__vtt_parm' parameter for the current function. Only used for 1066 constructors and destructors. */ 1067 1068 #define current_vtt_parm cp_function_chain->x_vtt_parm 1069 1070 /* Set to 0 at beginning of a function definition, set to 1 if 1071 a return statement that specifies a return value is seen. */ 1072 1073 #define current_function_returns_value cp_function_chain->returns_value 1074 1075 /* Set to 0 at beginning of a function definition, set to 1 if 1076 a return statement with no argument is seen. */ 1077 1078 #define current_function_returns_null cp_function_chain->returns_null 1079 1080 /* Set to 0 at beginning of a function definition, set to 1 if 1081 a call to a noreturn function is seen. */ 1082 1083 #define current_function_returns_abnormally \ 1084 cp_function_chain->returns_abnormally 1085 1086 /* Nonzero if we are processing a base initializer. Zero elsewhere. */ 1087 #define in_base_initializer cp_function_chain->in_base_initializer 1088 1089 #define in_function_try_handler cp_function_chain->in_function_try_handler 1090 1091 /* Expression always returned from function, or error_mark_node 1092 otherwise, for use by the automatic named return value optimization. */ 1093 1094 #define current_function_return_value \ 1095 (cp_function_chain->x_return_value) 1096 1097 /* True if NAME is the IDENTIFIER_NODE for an overloaded "operator 1098 new" or "operator delete". */ 1099 #define NEW_DELETE_OPNAME_P(NAME) \ 1100 ((NAME) == ansi_opname (NEW_EXPR) \ 1101 || (NAME) == ansi_opname (VEC_NEW_EXPR) \ 1102 || (NAME) == ansi_opname (DELETE_EXPR) \ 1103 || (NAME) == ansi_opname (VEC_DELETE_EXPR)) 1104 1105 #define ansi_opname(CODE) \ 1106 (operator_name_info[(int) (CODE)].identifier) 1107 #define ansi_assopname(CODE) \ 1108 (assignment_operator_name_info[(int) (CODE)].identifier) 1109 1110 /* True if NODE is an erroneous expression. */ 1111 1112 #define error_operand_p(NODE) \ 1113 ((NODE) == error_mark_node \ 1114 || ((NODE) && TREE_TYPE ((NODE)) == error_mark_node)) 1115 1116 /* TRUE if a tree code represents a statement. */ 1118 extern bool statement_code_p[MAX_TREE_CODES]; 1119 1120 #define STATEMENT_CODE_P(CODE) statement_code_p[(int) (CODE)] 1121 1122 enum languages { lang_c, lang_cplusplus, lang_java }; 1123 1124 /* Macros to make error reporting functions' lives easier. */ 1125 #define TYPE_IDENTIFIER(NODE) (DECL_NAME (TYPE_NAME (NODE))) 1126 #define TYPE_LINKAGE_IDENTIFIER(NODE) \ 1127 (TYPE_IDENTIFIER (TYPE_MAIN_VARIANT (NODE))) 1128 #define TYPE_NAME_STRING(NODE) (IDENTIFIER_POINTER (TYPE_IDENTIFIER (NODE))) 1129 #define TYPE_NAME_LENGTH(NODE) (IDENTIFIER_LENGTH (TYPE_IDENTIFIER (NODE))) 1130 1131 /* Nonzero if NODE has no name for linkage purposes. */ 1132 #define TYPE_ANONYMOUS_P(NODE) \ 1133 (TAGGED_TYPE_P (NODE) && ANON_AGGRNAME_P (TYPE_LINKAGE_IDENTIFIER (NODE))) 1134 1135 /* The _DECL for this _TYPE. */ 1136 #define TYPE_MAIN_DECL(NODE) (TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE))) 1137 1138 /* Nonzero if T is a class (or struct or union) type. Also nonzero 1139 for template type parameters, typename types, and instantiated 1140 template template parameters. Keep these checks in ascending code 1141 order. */ 1142 #define MAYBE_CLASS_TYPE_P(T) \ 1143 (TREE_CODE (T) == TEMPLATE_TYPE_PARM \ 1144 || TREE_CODE (T) == TYPENAME_TYPE \ 1145 || TREE_CODE (T) == TYPEOF_TYPE \ 1146 || TREE_CODE (T) == BOUND_TEMPLATE_TEMPLATE_PARM \ 1147 || TREE_CODE (T) == DECLTYPE_TYPE \ 1148 || CLASS_TYPE_P (T)) 1149 1150 /* Set CLASS_TYPE_P for T to VAL. T must be a class, struct, or 1151 union type. */ 1152 #define SET_CLASS_TYPE_P(T, VAL) \ 1153 (TYPE_LANG_FLAG_5 (T) = (VAL)) 1154 1155 /* Nonzero if T is a class type. Zero for template type parameters, 1156 typename types, and so forth. */ 1157 #define CLASS_TYPE_P(T) \ 1158 (RECORD_OR_UNION_CODE_P (TREE_CODE (T)) && TYPE_LANG_FLAG_5 (T)) 1159 1160 /* Nonzero if T is a class type but not an union. */ 1161 #define NON_UNION_CLASS_TYPE_P(T) \ 1162 (CLASS_TYPE_P (T) && TREE_CODE (T) != UNION_TYPE) 1163 1164 /* Keep these checks in ascending code order. */ 1165 #define RECORD_OR_UNION_CODE_P(T) \ 1166 ((T) == RECORD_TYPE || (T) == UNION_TYPE) 1167 #define TAGGED_TYPE_P(T) \ 1168 (CLASS_TYPE_P (T) || TREE_CODE (T) == ENUMERAL_TYPE) 1169 #define IS_OVERLOAD_TYPE(T) TAGGED_TYPE_P (T) 1170 1171 /* True if this a "Java" type, defined in 'extern "Java"'. */ 1172 #define TYPE_FOR_JAVA(NODE) TYPE_LANG_FLAG_3 (NODE) 1173 1174 /* True if this type is dependent. This predicate is only valid if 1175 TYPE_DEPENDENT_P_VALID is true. */ 1176 #define TYPE_DEPENDENT_P(NODE) TYPE_LANG_FLAG_0 (NODE) 1177 1178 /* True if dependent_type_p has been called for this type, with the 1179 result that TYPE_DEPENDENT_P is valid. */ 1180 #define TYPE_DEPENDENT_P_VALID(NODE) TYPE_LANG_FLAG_6(NODE) 1181 1182 /* Nonzero if this type is const-qualified. */ 1183 #define CP_TYPE_CONST_P(NODE) \ 1184 ((cp_type_quals (NODE) & TYPE_QUAL_CONST) != 0) 1185 1186 /* Nonzero if this type is volatile-qualified. */ 1187 #define CP_TYPE_VOLATILE_P(NODE) \ 1188 ((cp_type_quals (NODE) & TYPE_QUAL_VOLATILE) != 0) 1189 1190 /* Nonzero if this type is restrict-qualified. */ 1191 #define CP_TYPE_RESTRICT_P(NODE) \ 1192 ((cp_type_quals (NODE) & TYPE_QUAL_RESTRICT) != 0) 1193 1194 /* Nonzero if this type is const-qualified, but not 1195 volatile-qualified. Other qualifiers are ignored. This macro is 1196 used to test whether or not it is OK to bind an rvalue to a 1197 reference. */ 1198 #define CP_TYPE_CONST_NON_VOLATILE_P(NODE) \ 1199 ((cp_type_quals (NODE) & (TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE)) \ 1200 == TYPE_QUAL_CONST) 1201 1202 #define FUNCTION_ARG_CHAIN(NODE) \ 1203 TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (NODE))) 1204 1205 /* Given a FUNCTION_DECL, returns the first TREE_LIST out of TYPE_ARG_TYPES 1206 which refers to a user-written parameter. */ 1207 #define FUNCTION_FIRST_USER_PARMTYPE(NODE) \ 1208 skip_artificial_parms_for ((NODE), TYPE_ARG_TYPES (TREE_TYPE (NODE))) 1209 1210 /* Similarly, but for DECL_ARGUMENTS. */ 1211 #define FUNCTION_FIRST_USER_PARM(NODE) \ 1212 skip_artificial_parms_for ((NODE), DECL_ARGUMENTS (NODE)) 1213 1214 /* Nonzero iff TYPE is derived from PARENT. Ignores accessibility and 1215 ambiguity issues. */ 1216 #define DERIVED_FROM_P(PARENT, TYPE) \ 1217 (lookup_base ((TYPE), (PARENT), ba_any, NULL) != NULL_TREE) 1218 /* Nonzero iff TYPE is uniquely derived from PARENT. Ignores 1219 accessibility. */ 1220 #define UNIQUELY_DERIVED_FROM_P(PARENT, TYPE) \ 1221 (lookup_base ((TYPE), (PARENT), ba_unique | ba_quiet, NULL) != NULL_TREE) 1222 /* Nonzero iff TYPE is publicly & uniquely derived from PARENT. */ 1223 #define PUBLICLY_UNIQUELY_DERIVED_P(PARENT, TYPE) \ 1224 (lookup_base ((TYPE), (PARENT), ba_ignore_scope | ba_check | ba_quiet, \ 1225 NULL) != NULL_TREE) 1226 1227 /* Gives the visibility specification for a class type. */ 1228 #define CLASSTYPE_VISIBILITY(TYPE) \ 1229 DECL_VISIBILITY (TYPE_MAIN_DECL (TYPE)) 1230 #define CLASSTYPE_VISIBILITY_SPECIFIED(TYPE) \ 1231 DECL_VISIBILITY_SPECIFIED (TYPE_MAIN_DECL (TYPE)) 1232 1233 typedef struct GTY (()) tree_pair_s { 1234 tree purpose; 1235 tree value; 1236 } tree_pair_s; 1237 typedef tree_pair_s *tree_pair_p; 1238 DEF_VEC_O (tree_pair_s); 1239 DEF_VEC_ALLOC_O (tree_pair_s,gc); 1240 1241 /* This is a few header flags for 'struct lang_type'. Actually, 1242 all but the first are used only for lang_type_class; they 1243 are put in this structure to save space. */ 1244 struct GTY(()) lang_type_header { 1245 BOOL_BITFIELD is_lang_type_class : 1; 1246 1247 BOOL_BITFIELD has_type_conversion : 1; 1248 BOOL_BITFIELD has_copy_ctor : 1; 1249 BOOL_BITFIELD has_default_ctor : 1; 1250 BOOL_BITFIELD const_needs_init : 1; 1251 BOOL_BITFIELD ref_needs_init : 1; 1252 BOOL_BITFIELD has_const_copy_assign : 1; 1253 1254 BOOL_BITFIELD spare : 1; 1255 }; 1256 1257 /* This structure provides additional information above and beyond 1258 what is provide in the ordinary tree_type. In the past, we used it 1259 for the types of class types, template parameters types, typename 1260 types, and so forth. However, there can be many (tens to hundreds 1261 of thousands) of template parameter types in a compilation, and 1262 there's no need for this additional information in that case. 1263 Therefore, we now use this data structure only for class types. 1264 1265 In the past, it was thought that there would be relatively few 1266 class types. However, in the presence of heavy use of templates, 1267 many (i.e., thousands) of classes can easily be generated. 1268 Therefore, we should endeavor to keep the size of this structure to 1269 a minimum. */ 1270 struct GTY(()) lang_type_class { 1271 struct lang_type_header h; 1272 1273 unsigned char align; 1274 1275 unsigned has_mutable : 1; 1276 unsigned com_interface : 1; 1277 unsigned non_pod_class : 1; 1278 unsigned nearly_empty_p : 1; 1279 unsigned user_align : 1; 1280 unsigned has_copy_assign : 1; 1281 unsigned has_new : 1; 1282 unsigned has_array_new : 1; 1283 1284 unsigned gets_delete : 2; 1285 unsigned interface_only : 1; 1286 unsigned interface_unknown : 1; 1287 unsigned contains_empty_class_p : 1; 1288 unsigned anon_aggr : 1; 1289 unsigned non_zero_init : 1; 1290 unsigned empty_p : 1; 1291 1292 unsigned vec_new_uses_cookie : 1; 1293 unsigned declared_class : 1; 1294 unsigned diamond_shaped : 1; 1295 unsigned repeated_base : 1; 1296 unsigned being_defined : 1; 1297 unsigned java_interface : 1; 1298 unsigned debug_requested : 1; 1299 unsigned fields_readonly : 1; 1300 1301 unsigned use_template : 2; 1302 unsigned ptrmemfunc_flag : 1; 1303 unsigned was_anonymous : 1; 1304 unsigned lazy_default_ctor : 1; 1305 unsigned lazy_copy_ctor : 1; 1306 unsigned lazy_copy_assign : 1; 1307 unsigned lazy_destructor : 1; 1308 1309 unsigned has_const_copy_ctor : 1; 1310 unsigned has_complex_copy_ctor : 1; 1311 unsigned has_complex_copy_assign : 1; 1312 unsigned non_aggregate : 1; 1313 unsigned has_complex_dflt : 1; 1314 unsigned has_list_ctor : 1; 1315 unsigned non_std_layout : 1; 1316 unsigned is_literal : 1; 1317 1318 unsigned lazy_move_ctor : 1; 1319 unsigned lazy_move_assign : 1; 1320 unsigned has_complex_move_ctor : 1; 1321 unsigned has_complex_move_assign : 1; 1322 unsigned has_constexpr_ctor : 1; 1323 1324 /* When adding a flag here, consider whether or not it ought to 1325 apply to a template instance if it applies to the template. If 1326 so, make sure to copy it in instantiate_class_template! */ 1327 1328 /* There are some bits left to fill out a 32-bit word. Keep track 1329 of this by updating the size of this bitfield whenever you add or 1330 remove a flag. */ 1331 unsigned dummy : 3; 1332 1333 tree primary_base; 1334 VEC(tree_pair_s,gc) *vcall_indices; 1335 tree vtables; 1336 tree typeinfo_var; 1337 VEC(tree,gc) *vbases; 1338 binding_table nested_udts; 1339 tree as_base; 1340 VEC(tree,gc) *pure_virtuals; 1341 tree friend_classes; 1342 VEC(tree,gc) * GTY((reorder ("resort_type_method_vec"))) methods; 1343 tree key_method; 1344 tree decl_list; 1345 tree template_info; 1346 tree befriending_classes; 1347 /* In a RECORD_TYPE, information specific to Objective-C++, such 1348 as a list of adopted protocols or a pointer to a corresponding 1349 @interface. See objc/objc-act.h for details. */ 1350 tree objc_info; 1351 /* sorted_fields is sorted based on a pointer, so we need to be able 1352 to resort it if pointers get rearranged. */ 1353 struct sorted_fields_type * GTY ((reorder ("resort_sorted_fields"))) 1354 sorted_fields; 1355 /* FIXME reuse another field? */ 1356 tree lambda_expr; 1357 }; 1358 1359 struct GTY(()) lang_type_ptrmem { 1360 struct lang_type_header h; 1361 tree record; 1362 }; 1363 1364 struct GTY((variable_size)) lang_type { 1365 union lang_type_u 1366 { 1367 struct lang_type_header GTY((skip (""))) h; 1368 struct lang_type_class GTY((tag ("1"))) c; 1369 struct lang_type_ptrmem GTY((tag ("0"))) ptrmem; 1370 } GTY((desc ("%h.h.is_lang_type_class"))) u; 1371 }; 1372 1373 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007) 1374 1375 #define LANG_TYPE_CLASS_CHECK(NODE) __extension__ \ 1376 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \ 1377 if (! lt->u.h.is_lang_type_class) \ 1378 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 1379 <->u.c; }) 1380 1381 #define LANG_TYPE_PTRMEM_CHECK(NODE) __extension__ \ 1382 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \ 1383 if (lt->u.h.is_lang_type_class) \ 1384 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 1385 <->u.ptrmem; }) 1386 1387 #else 1388 1389 #define LANG_TYPE_CLASS_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.c) 1390 #define LANG_TYPE_PTRMEM_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.ptrmem) 1391 1392 #endif /* ENABLE_TREE_CHECKING */ 1393 1394 /* Nonzero for _CLASSTYPE means that operator delete is defined. */ 1395 #define TYPE_GETS_DELETE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->gets_delete) 1396 #define TYPE_GETS_REG_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 1) 1397 1398 /* Nonzero if `new NODE[x]' should cause the allocation of extra 1399 storage to indicate how many array elements are in use. */ 1400 #define TYPE_VEC_NEW_USES_COOKIE(NODE) \ 1401 (CLASS_TYPE_P (NODE) \ 1402 && LANG_TYPE_CLASS_CHECK (NODE)->vec_new_uses_cookie) 1403 1404 /* Nonzero means that this _CLASSTYPE node defines ways of converting 1405 itself to other types. */ 1406 #define TYPE_HAS_CONVERSION(NODE) \ 1407 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_type_conversion) 1408 1409 /* Nonzero means that NODE (a class type) has a default constructor -- 1410 but that it has not yet been declared. */ 1411 #define CLASSTYPE_LAZY_DEFAULT_CTOR(NODE) \ 1412 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_default_ctor) 1413 1414 /* Nonzero means that NODE (a class type) has a copy constructor -- 1415 but that it has not yet been declared. */ 1416 #define CLASSTYPE_LAZY_COPY_CTOR(NODE) \ 1417 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_ctor) 1418 1419 /* Nonzero means that NODE (a class type) has a move constructor -- 1420 but that it has not yet been declared. */ 1421 #define CLASSTYPE_LAZY_MOVE_CTOR(NODE) \ 1422 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_move_ctor) 1423 1424 /* Nonzero means that NODE (a class type) has an assignment operator 1425 -- but that it has not yet been declared. */ 1426 #define CLASSTYPE_LAZY_COPY_ASSIGN(NODE) \ 1427 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_assign) 1428 1429 /* Nonzero means that NODE (a class type) has an assignment operator 1430 -- but that it has not yet been declared. */ 1431 #define CLASSTYPE_LAZY_MOVE_ASSIGN(NODE) \ 1432 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_move_assign) 1433 1434 /* Nonzero means that NODE (a class type) has a destructor -- but that 1435 it has not yet been declared. */ 1436 #define CLASSTYPE_LAZY_DESTRUCTOR(NODE) \ 1437 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_destructor) 1438 1439 /* Nonzero means that this _CLASSTYPE node overloads operator=(X&). */ 1440 #define TYPE_HAS_COPY_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_copy_assign) 1441 1442 /* True iff the class type NODE has an "operator =" whose parameter 1443 has a parameter of type "const X&". */ 1444 #define TYPE_HAS_CONST_COPY_ASSIGN(NODE) \ 1445 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_const_copy_assign) 1446 1447 /* Nonzero means that this _CLASSTYPE node has an X(X&) constructor. */ 1448 #define TYPE_HAS_COPY_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->h.has_copy_ctor) 1449 #define TYPE_HAS_CONST_COPY_CTOR(NODE) \ 1450 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_copy_ctor) 1451 1452 /* Nonzero if this class has an X(initializer_list<T>) constructor. */ 1453 #define TYPE_HAS_LIST_CTOR(NODE) \ 1454 (LANG_TYPE_CLASS_CHECK (NODE)->has_list_ctor) 1455 1456 /* Nonzero if this class has a constexpr constructor other than a copy/move 1457 constructor. Note that a class can have constexpr constructors for 1458 static initialization even if it isn't a literal class. */ 1459 #define TYPE_HAS_CONSTEXPR_CTOR(NODE) \ 1460 (LANG_TYPE_CLASS_CHECK (NODE)->has_constexpr_ctor) 1461 1462 /* Nonzero if this class defines an overloaded operator new. (An 1463 operator new [] doesn't count.) */ 1464 #define TYPE_HAS_NEW_OPERATOR(NODE) \ 1465 (LANG_TYPE_CLASS_CHECK (NODE)->has_new) 1466 1467 /* Nonzero if this class defines an overloaded operator new[]. */ 1468 #define TYPE_HAS_ARRAY_NEW_OPERATOR(NODE) \ 1469 (LANG_TYPE_CLASS_CHECK (NODE)->has_array_new) 1470 1471 /* Nonzero means that this type is being defined. I.e., the left brace 1472 starting the definition of this type has been seen. */ 1473 #define TYPE_BEING_DEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->being_defined) 1474 1475 /* Nonzero means that this type is either complete or being defined, so we 1476 can do lookup in it. */ 1477 #define COMPLETE_OR_OPEN_TYPE_P(NODE) \ 1478 (COMPLETE_TYPE_P (NODE) || (CLASS_TYPE_P (NODE) && TYPE_BEING_DEFINED (NODE))) 1479 1480 /* Mark bits for repeated base checks. */ 1481 #define TYPE_MARKED_P(NODE) TREE_LANG_FLAG_6 (TYPE_CHECK (NODE)) 1482 1483 /* Nonzero if the class NODE has multiple paths to the same (virtual) 1484 base object. */ 1485 #define CLASSTYPE_DIAMOND_SHAPED_P(NODE) \ 1486 (LANG_TYPE_CLASS_CHECK(NODE)->diamond_shaped) 1487 1488 /* Nonzero if the class NODE has multiple instances of the same base 1489 type. */ 1490 #define CLASSTYPE_REPEATED_BASE_P(NODE) \ 1491 (LANG_TYPE_CLASS_CHECK(NODE)->repeated_base) 1492 1493 /* The member function with which the vtable will be emitted: 1494 the first noninline non-pure-virtual member function. NULL_TREE 1495 if there is no key function or if this is a class template */ 1496 #define CLASSTYPE_KEY_METHOD(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->key_method) 1497 1498 /* Vector member functions defined in this class. Each element is 1499 either a FUNCTION_DECL, a TEMPLATE_DECL, or an OVERLOAD. All 1500 functions with the same name end up in the same slot. The first 1501 two elements are for constructors, and destructors, respectively. 1502 All template conversion operators to innermost template dependent 1503 types are overloaded on the next slot, if they exist. Note, the 1504 names for these functions will not all be the same. The 1505 non-template conversion operators & templated conversions to 1506 non-innermost template types are next, followed by ordinary member 1507 functions. There may be empty entries at the end of the vector. 1508 The conversion operators are unsorted. The ordinary member 1509 functions are sorted, once the class is complete. */ 1510 #define CLASSTYPE_METHOD_VEC(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->methods) 1511 1512 /* For class templates, this is a TREE_LIST of all member data, 1513 functions, types, and friends in the order of declaration. 1514 The TREE_PURPOSE of each TREE_LIST is NULL_TREE for a friend, 1515 and the RECORD_TYPE for the class template otherwise. */ 1516 #define CLASSTYPE_DECL_LIST(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->decl_list) 1517 1518 /* The slot in the CLASSTYPE_METHOD_VEC where constructors go. */ 1519 #define CLASSTYPE_CONSTRUCTOR_SLOT 0 1520 1521 /* The slot in the CLASSTYPE_METHOD_VEC where destructors go. */ 1522 #define CLASSTYPE_DESTRUCTOR_SLOT 1 1523 1524 /* The first slot in the CLASSTYPE_METHOD_VEC where conversion 1525 operators can appear. */ 1526 #define CLASSTYPE_FIRST_CONVERSION_SLOT 2 1527 1528 /* A FUNCTION_DECL or OVERLOAD for the constructors for NODE. These 1529 are the constructors that take an in-charge parameter. */ 1530 #define CLASSTYPE_CONSTRUCTORS(NODE) \ 1531 (VEC_index (tree, CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_CONSTRUCTOR_SLOT)) 1532 1533 /* A FUNCTION_DECL for the destructor for NODE. These are the 1534 destructors that take an in-charge parameter. If 1535 CLASSTYPE_LAZY_DESTRUCTOR is true, then this entry will be NULL 1536 until the destructor is created with lazily_declare_fn. */ 1537 #define CLASSTYPE_DESTRUCTORS(NODE) \ 1538 (CLASSTYPE_METHOD_VEC (NODE) \ 1539 ? VEC_index (tree, CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_DESTRUCTOR_SLOT) \ 1540 : NULL_TREE) 1541 1542 /* A dictionary of the nested user-defined-types (class-types, or enums) 1543 found within this class. This table includes nested member class 1544 templates. */ 1545 #define CLASSTYPE_NESTED_UTDS(NODE) \ 1546 (LANG_TYPE_CLASS_CHECK (NODE)->nested_udts) 1547 1548 /* Nonzero if NODE has a primary base class, i.e., a base class with 1549 which it shares the virtual function table pointer. */ 1550 #define CLASSTYPE_HAS_PRIMARY_BASE_P(NODE) \ 1551 (CLASSTYPE_PRIMARY_BINFO (NODE) != NULL_TREE) 1552 1553 /* If non-NULL, this is the binfo for the primary base class, i.e., 1554 the base class which contains the virtual function table pointer 1555 for this class. */ 1556 #define CLASSTYPE_PRIMARY_BINFO(NODE) \ 1557 (LANG_TYPE_CLASS_CHECK (NODE)->primary_base) 1558 1559 /* A vector of BINFOs for the direct and indirect virtual base classes 1560 that this type uses in a post-order depth-first left-to-right 1561 order. (In other words, these bases appear in the order that they 1562 should be initialized.) */ 1563 #define CLASSTYPE_VBASECLASSES(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->vbases) 1564 1565 /* The type corresponding to NODE when NODE is used as a base class, 1566 i.e., NODE without virtual base classes. */ 1567 1568 #define CLASSTYPE_AS_BASE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->as_base) 1569 1570 /* True iff NODE is the CLASSTYPE_AS_BASE version of some type. */ 1571 1572 #define IS_FAKE_BASE_TYPE(NODE) \ 1573 (TREE_CODE (NODE) == RECORD_TYPE \ 1574 && TYPE_CONTEXT (NODE) && CLASS_TYPE_P (TYPE_CONTEXT (NODE)) \ 1575 && CLASSTYPE_AS_BASE (TYPE_CONTEXT (NODE)) == (NODE)) 1576 1577 /* These are the size and alignment of the type without its virtual 1578 base classes, for when we use this type as a base itself. */ 1579 #define CLASSTYPE_SIZE(NODE) TYPE_SIZE (CLASSTYPE_AS_BASE (NODE)) 1580 #define CLASSTYPE_SIZE_UNIT(NODE) TYPE_SIZE_UNIT (CLASSTYPE_AS_BASE (NODE)) 1581 #define CLASSTYPE_ALIGN(NODE) TYPE_ALIGN (CLASSTYPE_AS_BASE (NODE)) 1582 #define CLASSTYPE_USER_ALIGN(NODE) TYPE_USER_ALIGN (CLASSTYPE_AS_BASE (NODE)) 1583 1584 /* The alignment of NODE, without its virtual bases, in bytes. */ 1585 #define CLASSTYPE_ALIGN_UNIT(NODE) \ 1586 (CLASSTYPE_ALIGN (NODE) / BITS_PER_UNIT) 1587 1588 /* True if this a Java interface type, declared with 1589 '__attribute__ ((java_interface))'. */ 1590 #define TYPE_JAVA_INTERFACE(NODE) \ 1591 (LANG_TYPE_CLASS_CHECK (NODE)->java_interface) 1592 1593 /* A VEC(tree) of virtual functions which cannot be inherited by 1594 derived classes. When deriving from this type, the derived 1595 class must provide its own definition for each of these functions. */ 1596 #define CLASSTYPE_PURE_VIRTUALS(NODE) \ 1597 (LANG_TYPE_CLASS_CHECK (NODE)->pure_virtuals) 1598 1599 /* Nonzero means that this type has an X() constructor. */ 1600 #define TYPE_HAS_DEFAULT_CONSTRUCTOR(NODE) \ 1601 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_default_ctor) 1602 1603 /* Nonzero means that this type contains a mutable member. */ 1604 #define CLASSTYPE_HAS_MUTABLE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_mutable) 1605 #define TYPE_HAS_MUTABLE_P(NODE) (cp_has_mutable_p (NODE)) 1606 1607 /* Nonzero means that this class type is not POD for the purpose of layout 1608 (as defined in the ABI). This is different from the language's POD. */ 1609 #define CLASSTYPE_NON_LAYOUT_POD_P(NODE) \ 1610 (LANG_TYPE_CLASS_CHECK (NODE)->non_pod_class) 1611 1612 /* Nonzero means that this class type is a non-standard-layout class. */ 1613 #define CLASSTYPE_NON_STD_LAYOUT(NODE) \ 1614 (LANG_TYPE_CLASS_CHECK (NODE)->non_std_layout) 1615 1616 /* Nonzero means that this class contains pod types whose default 1617 initialization is not a zero initialization (namely, pointers to 1618 data members). */ 1619 #define CLASSTYPE_NON_ZERO_INIT_P(NODE) \ 1620 (LANG_TYPE_CLASS_CHECK (NODE)->non_zero_init) 1621 1622 /* Nonzero if this class is "empty" in the sense of the C++ ABI. */ 1623 #define CLASSTYPE_EMPTY_P(NODE) \ 1624 (LANG_TYPE_CLASS_CHECK (NODE)->empty_p) 1625 1626 /* Nonzero if this class is "nearly empty", i.e., contains only a 1627 virtual function table pointer. */ 1628 #define CLASSTYPE_NEARLY_EMPTY_P(NODE) \ 1629 (LANG_TYPE_CLASS_CHECK (NODE)->nearly_empty_p) 1630 1631 /* Nonzero if this class contains an empty subobject. */ 1632 #define CLASSTYPE_CONTAINS_EMPTY_CLASS_P(NODE) \ 1633 (LANG_TYPE_CLASS_CHECK (NODE)->contains_empty_class_p) 1634 1635 /* A list of class types of which this type is a friend. The 1636 TREE_VALUE is normally a TYPE, but will be a TEMPLATE_DECL in the 1637 case of a template friend. */ 1638 #define CLASSTYPE_FRIEND_CLASSES(NODE) \ 1639 (LANG_TYPE_CLASS_CHECK (NODE)->friend_classes) 1640 1641 /* A list of the classes which grant friendship to this class. */ 1642 #define CLASSTYPE_BEFRIENDING_CLASSES(NODE) \ 1643 (LANG_TYPE_CLASS_CHECK (NODE)->befriending_classes) 1644 1645 /* The associated LAMBDA_EXPR that made this class. */ 1646 #define CLASSTYPE_LAMBDA_EXPR(NODE) \ 1647 (LANG_TYPE_CLASS_CHECK (NODE)->lambda_expr) 1648 /* The extra mangling scope for this closure type. */ 1649 #define LAMBDA_TYPE_EXTRA_SCOPE(NODE) \ 1650 (LAMBDA_EXPR_EXTRA_SCOPE (CLASSTYPE_LAMBDA_EXPR (NODE))) 1651 1652 /* Say whether this node was declared as a "class" or a "struct". */ 1653 #define CLASSTYPE_DECLARED_CLASS(NODE) \ 1654 (LANG_TYPE_CLASS_CHECK (NODE)->declared_class) 1655 1656 /* Nonzero if this class has const members 1657 which have no specified initialization. */ 1658 #define CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE) \ 1659 (TYPE_LANG_SPECIFIC (NODE) \ 1660 ? LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init : 0) 1661 #define SET_CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE, VALUE) \ 1662 (LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init = (VALUE)) 1663 1664 /* Nonzero if this class has ref members 1665 which have no specified initialization. */ 1666 #define CLASSTYPE_REF_FIELDS_NEED_INIT(NODE) \ 1667 (TYPE_LANG_SPECIFIC (NODE) \ 1668 ? LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init : 0) 1669 #define SET_CLASSTYPE_REF_FIELDS_NEED_INIT(NODE, VALUE) \ 1670 (LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init = (VALUE)) 1671 1672 /* Nonzero if this class is included from a header file which employs 1673 `#pragma interface', and it is not included in its implementation file. */ 1674 #define CLASSTYPE_INTERFACE_ONLY(NODE) \ 1675 (LANG_TYPE_CLASS_CHECK (NODE)->interface_only) 1676 1677 /* True if we have already determined whether or not vtables, VTTs, 1678 typeinfo, and other similar per-class data should be emitted in 1679 this translation unit. This flag does not indicate whether or not 1680 these items should be emitted; it only indicates that we know one 1681 way or the other. */ 1682 #define CLASSTYPE_INTERFACE_KNOWN(NODE) \ 1683 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown == 0) 1684 /* The opposite of CLASSTYPE_INTERFACE_KNOWN. */ 1685 #define CLASSTYPE_INTERFACE_UNKNOWN(NODE) \ 1686 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown) 1687 1688 #define SET_CLASSTYPE_INTERFACE_UNKNOWN_X(NODE,X) \ 1689 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = !!(X)) 1690 #define SET_CLASSTYPE_INTERFACE_UNKNOWN(NODE) \ 1691 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 1) 1692 #define SET_CLASSTYPE_INTERFACE_KNOWN(NODE) \ 1693 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 0) 1694 1695 /* Nonzero if a _DECL node requires us to output debug info for this class. */ 1696 #define CLASSTYPE_DEBUG_REQUESTED(NODE) \ 1697 (LANG_TYPE_CLASS_CHECK (NODE)->debug_requested) 1698 1699 /* Additional macros for inheritance information. */ 1701 1702 /* Nonzero means that this class is on a path leading to a new vtable. */ 1703 #define BINFO_VTABLE_PATH_MARKED(NODE) BINFO_FLAG_1 (NODE) 1704 1705 /* Nonzero means B (a BINFO) has its own vtable. Any copies will not 1706 have this flag set. */ 1707 #define BINFO_NEW_VTABLE_MARKED(B) (BINFO_FLAG_2 (B)) 1708 1709 /* Compare a BINFO_TYPE with another type for equality. For a binfo, 1710 this is functionally equivalent to using same_type_p, but 1711 measurably faster. At least one of the arguments must be a 1712 BINFO_TYPE. The other can be a BINFO_TYPE or a regular type. If 1713 BINFO_TYPE(T) ever stops being the main variant of the class the 1714 binfo is for, this macro must change. */ 1715 #define SAME_BINFO_TYPE_P(A, B) ((A) == (B)) 1716 1717 /* Any subobject that needs a new vtable must have a vptr and must not 1718 be a non-virtual primary base (since it would then use the vtable from a 1719 derived class and never become non-primary.) */ 1720 #define SET_BINFO_NEW_VTABLE_MARKED(B) \ 1721 (BINFO_NEW_VTABLE_MARKED (B) = 1, \ 1722 gcc_assert (!BINFO_PRIMARY_P (B) || BINFO_VIRTUAL_P (B)), \ 1723 gcc_assert (TYPE_VFIELD (BINFO_TYPE (B)))) 1724 1725 /* Nonzero if this binfo is for a dependent base - one that should not 1726 be searched. */ 1727 #define BINFO_DEPENDENT_BASE_P(NODE) BINFO_FLAG_3 (NODE) 1728 1729 /* Nonzero if this binfo has lost its primary base binfo (because that 1730 is a nearly-empty virtual base that has been taken by some other 1731 base in the complete hierarchy. */ 1732 #define BINFO_LOST_PRIMARY_P(NODE) BINFO_FLAG_4 (NODE) 1733 1734 /* Nonzero if this BINFO is a primary base class. */ 1735 #define BINFO_PRIMARY_P(NODE) BINFO_FLAG_5(NODE) 1736 1737 /* Used by various search routines. */ 1738 #define IDENTIFIER_MARKED(NODE) TREE_LANG_FLAG_0 (NODE) 1739 1740 /* A VEC(tree_pair_s) of the vcall indices associated with the class 1742 NODE. The PURPOSE of each element is a FUNCTION_DECL for a virtual 1743 function. The VALUE is the index into the virtual table where the 1744 vcall offset for that function is stored, when NODE is a virtual 1745 base. */ 1746 #define CLASSTYPE_VCALL_INDICES(NODE) \ 1747 (LANG_TYPE_CLASS_CHECK (NODE)->vcall_indices) 1748 1749 /* The various vtables for the class NODE. The primary vtable will be 1750 first, followed by the construction vtables and VTT, if any. */ 1751 #define CLASSTYPE_VTABLES(NODE) \ 1752 (LANG_TYPE_CLASS_CHECK (NODE)->vtables) 1753 1754 /* The std::type_info variable representing this class, or NULL if no 1755 such variable has been created. This field is only set for the 1756 TYPE_MAIN_VARIANT of the class. */ 1757 #define CLASSTYPE_TYPEINFO_VAR(NODE) \ 1758 (LANG_TYPE_CLASS_CHECK (NODE)->typeinfo_var) 1759 1760 /* Accessor macros for the BINFO_VIRTUALS list. */ 1761 1762 /* The number of bytes by which to adjust the `this' pointer when 1763 calling this virtual function. Subtract this value from the this 1764 pointer. Always non-NULL, might be constant zero though. */ 1765 #define BV_DELTA(NODE) (TREE_PURPOSE (NODE)) 1766 1767 /* If non-NULL, the vtable index at which to find the vcall offset 1768 when calling this virtual function. Add the value at that vtable 1769 index to the this pointer. */ 1770 #define BV_VCALL_INDEX(NODE) (TREE_TYPE (NODE)) 1771 1772 /* The function to call. */ 1773 #define BV_FN(NODE) (TREE_VALUE (NODE)) 1774 1775 /* Whether or not this entry is for a lost primary virtual base. */ 1776 #define BV_LOST_PRIMARY(NODE) (TREE_LANG_FLAG_0 (NODE)) 1777 1778 /* For FUNCTION_TYPE or METHOD_TYPE, a list of the exceptions that 1780 this type can raise. Each TREE_VALUE is a _TYPE. The TREE_VALUE 1781 will be NULL_TREE to indicate a throw specification of `()', or 1782 no exceptions allowed. For a noexcept specification, TREE_VALUE 1783 is NULL_TREE and TREE_PURPOSE is the constant-expression. */ 1784 #define TYPE_RAISES_EXCEPTIONS(NODE) TYPE_LANG_SLOT_1 (NODE) 1785 1786 /* For FUNCTION_TYPE or METHOD_TYPE, return 1 iff it is declared `throw()' 1787 or noexcept(true). */ 1788 #define TYPE_NOTHROW_P(NODE) nothrow_spec_p (TYPE_RAISES_EXCEPTIONS (NODE)) 1789 1790 /* For FUNCTION_TYPE or METHOD_TYPE, true if NODE is noexcept. This is the 1791 case for things declared noexcept(true) and, with -fnothrow-opt, for 1792 throw() functions. */ 1793 #define TYPE_NOEXCEPT_P(NODE) type_noexcept_p (NODE) 1794 1795 /* The binding level associated with the namespace. */ 1796 #define NAMESPACE_LEVEL(NODE) \ 1797 (LANG_DECL_NS_CHECK (NODE)->level) 1798 1799 /* Flags shared by all forms of DECL_LANG_SPECIFIC. 1801 1802 Some of the flags live here only to make lang_decl_min/fn smaller. Do 1803 not make this struct larger than 32 bits; instead, make sel smaller. */ 1804 1805 struct GTY(()) lang_decl_base { 1806 unsigned selector : 16; /* Larger than necessary for faster access. */ 1807 ENUM_BITFIELD(languages) language : 4; 1808 unsigned use_template : 2; 1809 unsigned not_really_extern : 1; /* var or fn */ 1810 unsigned initialized_in_class : 1; /* var or fn */ 1811 unsigned repo_available_p : 1; /* var or fn */ 1812 unsigned threadprivate_or_deleted_p : 1; /* var or fn */ 1813 unsigned anticipated_p : 1; /* fn or type */ 1814 unsigned friend_attr : 1; /* fn or type */ 1815 unsigned template_conv_p : 1; /* var or template */ 1816 unsigned odr_used : 1; /* var or fn */ 1817 unsigned u2sel : 1; 1818 /* 1 spare bit */ 1819 }; 1820 1821 /* True for DECL codes which have template info and access. */ 1822 #define LANG_DECL_HAS_MIN(NODE) \ 1823 (TREE_CODE (NODE) == FUNCTION_DECL \ 1824 || TREE_CODE (NODE) == FIELD_DECL \ 1825 || TREE_CODE (NODE) == VAR_DECL \ 1826 || TREE_CODE (NODE) == CONST_DECL \ 1827 || TREE_CODE (NODE) == TYPE_DECL \ 1828 || TREE_CODE (NODE) == TEMPLATE_DECL \ 1829 || TREE_CODE (NODE) == USING_DECL) 1830 1831 /* DECL_LANG_SPECIFIC for the above codes. */ 1832 1833 struct GTY(()) lang_decl_min { 1834 struct lang_decl_base base; 1835 1836 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is 1837 THUNK_ALIAS. 1838 In a FUNCTION_DECL for which DECL_THUNK_P does not hold, 1839 VAR_DECL, TYPE_DECL, or TEMPLATE_DECL, this is 1840 DECL_TEMPLATE_INFO. */ 1841 tree template_info; 1842 1843 union lang_decl_u2 { 1844 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is 1845 THUNK_VIRTUAL_OFFSET. 1846 Otherwise this is DECL_ACCESS. */ 1847 tree GTY ((tag ("0"))) access; 1848 1849 /* For VAR_DECL in function, this is DECL_DISCRIMINATOR. */ 1850 int GTY ((tag ("1"))) discriminator; 1851 } GTY ((desc ("%0.u.base.u2sel"))) u2; 1852 }; 1853 1854 /* Additional DECL_LANG_SPECIFIC information for functions. */ 1855 1856 struct GTY(()) lang_decl_fn { 1857 struct lang_decl_min min; 1858 1859 /* In an overloaded operator, this is the value of 1860 DECL_OVERLOADED_OPERATOR_P. */ 1861 ENUM_BITFIELD (tree_code) operator_code : 16; 1862 1863 unsigned global_ctor_p : 1; 1864 unsigned global_dtor_p : 1; 1865 unsigned constructor_attr : 1; 1866 unsigned destructor_attr : 1; 1867 unsigned assignment_operator_p : 1; 1868 unsigned static_function : 1; 1869 unsigned pure_virtual : 1; 1870 unsigned defaulted_p : 1; 1871 1872 unsigned has_in_charge_parm_p : 1; 1873 unsigned has_vtt_parm_p : 1; 1874 unsigned pending_inline_p : 1; 1875 unsigned nonconverting : 1; 1876 unsigned thunk_p : 1; 1877 unsigned this_thunk_p : 1; 1878 unsigned hidden_friend_p : 1; 1879 /* 1 spare bit. */ 1880 1881 /* For a non-thunk function decl, this is a tree list of 1882 friendly classes. For a thunk function decl, it is the 1883 thunked to function decl. */ 1884 tree befriending_classes; 1885 1886 /* For a non-virtual FUNCTION_DECL, this is 1887 DECL_FRIEND_CONTEXT. For a virtual FUNCTION_DECL for which 1888 DECL_THIS_THUNK_P does not hold, this is DECL_THUNKS. Both 1889 this pointer and result pointer adjusting thunks are 1890 chained here. This pointer thunks to return pointer thunks 1891 will be chained on the return pointer thunk. */ 1892 tree context; 1893 1894 union lang_decl_u5 1895 { 1896 /* In a non-thunk FUNCTION_DECL or TEMPLATE_DECL, this is 1897 DECL_CLONED_FUNCTION. */ 1898 tree GTY ((tag ("0"))) cloned_function; 1899 1900 /* In a FUNCTION_DECL for which THUNK_P holds this is the 1901 THUNK_FIXED_OFFSET. */ 1902 HOST_WIDE_INT GTY ((tag ("1"))) fixed_offset; 1903 } GTY ((desc ("%1.thunk_p"))) u5; 1904 1905 union lang_decl_u3 1906 { 1907 struct cp_token_cache * GTY ((tag ("1"))) pending_inline_info; 1908 struct language_function * GTY ((tag ("0"))) 1909 saved_language_function; 1910 } GTY ((desc ("%1.pending_inline_p"))) u; 1911 1912 }; 1913 1914 /* DECL_LANG_SPECIFIC for namespaces. */ 1915 1916 struct GTY(()) lang_decl_ns { 1917 struct lang_decl_base base; 1918 struct cp_binding_level *level; 1919 }; 1920 1921 /* DECL_LANG_SPECIFIC for parameters. */ 1922 1923 struct GTY(()) lang_decl_parm { 1924 struct lang_decl_base base; 1925 int level; 1926 int index; 1927 }; 1928 1929 /* DECL_LANG_SPECIFIC for all types. It would be nice to just make this a 1930 union rather than a struct containing a union as its only field, but 1931 tree.h declares it as a struct. */ 1932 1933 struct GTY((variable_size)) lang_decl { 1934 union GTY((desc ("%h.base.selector"))) lang_decl_u { 1935 struct lang_decl_base GTY ((default)) base; 1936 struct lang_decl_min GTY((tag ("0"))) min; 1937 struct lang_decl_fn GTY ((tag ("1"))) fn; 1938 struct lang_decl_ns GTY((tag ("2"))) ns; 1939 struct lang_decl_parm GTY((tag ("3"))) parm; 1940 } u; 1941 }; 1942 1943 /* Looks through a template (if present) to find what it declares. */ 1944 #define STRIP_TEMPLATE(NODE) \ 1945 (TREE_CODE (NODE) == TEMPLATE_DECL ? DECL_TEMPLATE_RESULT (NODE) : NODE) 1946 1947 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007) 1948 1949 #define LANG_DECL_MIN_CHECK(NODE) __extension__ \ 1950 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 1951 if (!LANG_DECL_HAS_MIN (NODE)) \ 1952 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 1953 <->u.min; }) 1954 1955 /* We want to be able to check DECL_CONSTRUCTOR_P and such on a function 1956 template, not just on a FUNCTION_DECL. So when looking for things in 1957 lang_decl_fn, look down through a TEMPLATE_DECL into its result. */ 1958 #define LANG_DECL_FN_CHECK(NODE) __extension__ \ 1959 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE)); \ 1960 if (!DECL_DECLARES_FUNCTION_P (NODE) || lt->u.base.selector != 1) \ 1961 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 1962 <->u.fn; }) 1963 1964 #define LANG_DECL_NS_CHECK(NODE) __extension__ \ 1965 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 1966 if (TREE_CODE (NODE) != NAMESPACE_DECL || lt->u.base.selector != 2) \ 1967 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 1968 <->u.ns; }) 1969 1970 #define LANG_DECL_PARM_CHECK(NODE) __extension__ \ 1971 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 1972 if (TREE_CODE (NODE) != PARM_DECL) \ 1973 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 1974 <->u.parm; }) 1975 1976 #define LANG_DECL_U2_CHECK(NODE, TF) __extension__ \ 1977 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 1978 if (!LANG_DECL_HAS_MIN (NODE) || lt->u.base.u2sel != TF) \ 1979 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 1980 <->u.min.u2; }) 1981 1982 #else 1983 1984 #define LANG_DECL_MIN_CHECK(NODE) \ 1985 (&DECL_LANG_SPECIFIC (NODE)->u.min) 1986 1987 #define LANG_DECL_FN_CHECK(NODE) \ 1988 (&DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE))->u.fn) 1989 1990 #define LANG_DECL_NS_CHECK(NODE) \ 1991 (&DECL_LANG_SPECIFIC (NODE)->u.ns) 1992 1993 #define LANG_DECL_PARM_CHECK(NODE) \ 1994 (&DECL_LANG_SPECIFIC (NODE)->u.parm) 1995 1996 #define LANG_DECL_U2_CHECK(NODE, TF) \ 1997 (&DECL_LANG_SPECIFIC (NODE)->u.min.u2) 1998 1999 #endif /* ENABLE_TREE_CHECKING */ 2000 2001 /* For a FUNCTION_DECL or a VAR_DECL, the language linkage for the 2002 declaration. Some entities (like a member function in a local 2003 class, or a local variable) do not have linkage at all, and this 2004 macro should not be used in those cases. 2005 2006 Implementation note: A FUNCTION_DECL without DECL_LANG_SPECIFIC was 2007 created by language-independent code, and has C linkage. Most 2008 VAR_DECLs have C++ linkage, and do not have DECL_LANG_SPECIFIC, but 2009 we do create DECL_LANG_SPECIFIC for variables with non-C++ linkage. */ 2010 #define DECL_LANGUAGE(NODE) \ 2011 (DECL_LANG_SPECIFIC (NODE) \ 2012 ? DECL_LANG_SPECIFIC (NODE)->u.base.language \ 2013 : (TREE_CODE (NODE) == FUNCTION_DECL \ 2014 ? lang_c : lang_cplusplus)) 2015 2016 /* Set the language linkage for NODE to LANGUAGE. */ 2017 #define SET_DECL_LANGUAGE(NODE, LANGUAGE) \ 2018 (DECL_LANG_SPECIFIC (NODE)->u.base.language = (LANGUAGE)) 2019 2020 /* For FUNCTION_DECLs: nonzero means that this function is a constructor. */ 2021 #define DECL_CONSTRUCTOR_P(NODE) \ 2022 (LANG_DECL_FN_CHECK (NODE)->constructor_attr) 2023 2024 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a complete 2025 object. */ 2026 #define DECL_COMPLETE_CONSTRUCTOR_P(NODE) \ 2027 (DECL_CONSTRUCTOR_P (NODE) \ 2028 && DECL_NAME (NODE) == complete_ctor_identifier) 2029 2030 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a base 2031 object. */ 2032 #define DECL_BASE_CONSTRUCTOR_P(NODE) \ 2033 (DECL_CONSTRUCTOR_P (NODE) \ 2034 && DECL_NAME (NODE) == base_ctor_identifier) 2035 2036 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor, but not either the 2037 specialized in-charge constructor or the specialized not-in-charge 2038 constructor. */ 2039 #define DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P(NODE) \ 2040 (DECL_DECLARES_FUNCTION_P (NODE) && DECL_CONSTRUCTOR_P (NODE) \ 2041 && !DECL_CLONED_FUNCTION_P (NODE)) 2042 2043 /* Nonzero if NODE (a FUNCTION_DECL) is a copy constructor. */ 2044 #define DECL_COPY_CONSTRUCTOR_P(NODE) \ 2045 (DECL_CONSTRUCTOR_P (NODE) && copy_fn_p (NODE) > 0) 2046 2047 /* Nonzero if NODE (a FUNCTION_DECL) is a move constructor. */ 2048 #define DECL_MOVE_CONSTRUCTOR_P(NODE) \ 2049 (DECL_CONSTRUCTOR_P (NODE) && move_fn_p (NODE)) 2050 2051 /* Nonzero if NODE is a destructor. */ 2052 #define DECL_DESTRUCTOR_P(NODE) \ 2053 (LANG_DECL_FN_CHECK (NODE)->destructor_attr) 2054 2055 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor, but not the 2056 specialized in-charge constructor, in-charge deleting constructor, 2057 or the base destructor. */ 2058 #define DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P(NODE) \ 2059 (DECL_DECLARES_FUNCTION_P (NODE) && DECL_DESTRUCTOR_P (NODE) \ 2060 && !DECL_CLONED_FUNCTION_P (NODE)) 2061 2062 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete 2063 object. */ 2064 #define DECL_COMPLETE_DESTRUCTOR_P(NODE) \ 2065 (DECL_DESTRUCTOR_P (NODE) \ 2066 && DECL_NAME (NODE) == complete_dtor_identifier) 2067 2068 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a base 2069 object. */ 2070 #define DECL_BASE_DESTRUCTOR_P(NODE) \ 2071 (DECL_DESTRUCTOR_P (NODE) \ 2072 && DECL_NAME (NODE) == base_dtor_identifier) 2073 2074 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete 2075 object that deletes the object after it has been destroyed. */ 2076 #define DECL_DELETING_DESTRUCTOR_P(NODE) \ 2077 (DECL_DESTRUCTOR_P (NODE) \ 2078 && DECL_NAME (NODE) == deleting_dtor_identifier) 2079 2080 /* Nonzero if NODE (a FUNCTION_DECL) is a cloned constructor or 2081 destructor. */ 2082 #define DECL_CLONED_FUNCTION_P(NODE) (!!decl_cloned_function_p (NODE, true)) 2083 2084 /* If DECL_CLONED_FUNCTION_P holds, this is the function that was 2085 cloned. */ 2086 #define DECL_CLONED_FUNCTION(NODE) (*decl_cloned_function_p (NODE, false)) 2087 2088 /* Perform an action for each clone of FN, if FN is a function with 2089 clones. This macro should be used like: 2090 2091 FOR_EACH_CLONE (clone, fn) 2092 { ... } 2093 2094 */ 2095 #define FOR_EACH_CLONE(CLONE, FN) \ 2096 if (TREE_CODE (FN) == FUNCTION_DECL \ 2097 && (DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (FN) \ 2098 || DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (FN))) \ 2099 for (CLONE = DECL_CHAIN (FN); \ 2100 CLONE && DECL_CLONED_FUNCTION_P (CLONE); \ 2101 CLONE = DECL_CHAIN (CLONE)) 2102 2103 /* Nonzero if NODE has DECL_DISCRIMINATOR and not DECL_ACCESS. */ 2104 #define DECL_DISCRIMINATOR_P(NODE) \ 2105 (TREE_CODE (NODE) == VAR_DECL \ 2106 && DECL_FUNCTION_SCOPE_P (NODE)) 2107 2108 /* Discriminator for name mangling. */ 2109 #define DECL_DISCRIMINATOR(NODE) (LANG_DECL_U2_CHECK (NODE, 1)->discriminator) 2110 2111 /* True iff DECL_DISCRIMINATOR is set for a DECL_DISCRIMINATOR_P decl. */ 2112 #define DECL_DISCRIMINATOR_SET_P(NODE) \ 2113 (DECL_LANG_SPECIFIC (NODE) && DECL_LANG_SPECIFIC (NODE)->u.base.u2sel == 1) 2114 2115 /* The index of a user-declared parameter in its function, starting at 1. 2116 All artificial parameters will have index 0. */ 2117 #define DECL_PARM_INDEX(NODE) \ 2118 (LANG_DECL_PARM_CHECK (NODE)->index) 2119 2120 /* The level of a user-declared parameter in its function, starting at 1. 2121 A parameter of the function will have level 1; a parameter of the first 2122 nested function declarator (i.e. t in void f (void (*p)(T t))) will have 2123 level 2. */ 2124 #define DECL_PARM_LEVEL(NODE) \ 2125 (LANG_DECL_PARM_CHECK (NODE)->level) 2126 2127 /* Nonzero if the VTT parm has been added to NODE. */ 2128 #define DECL_HAS_VTT_PARM_P(NODE) \ 2129 (LANG_DECL_FN_CHECK (NODE)->has_vtt_parm_p) 2130 2131 /* Nonzero if NODE is a FUNCTION_DECL for which a VTT parameter is 2132 required. */ 2133 #define DECL_NEEDS_VTT_PARM_P(NODE) \ 2134 (CLASSTYPE_VBASECLASSES (DECL_CONTEXT (NODE)) \ 2135 && (DECL_BASE_CONSTRUCTOR_P (NODE) \ 2136 || DECL_BASE_DESTRUCTOR_P (NODE))) 2137 2138 /* Nonzero if NODE is a user-defined conversion operator. */ 2139 #define DECL_CONV_FN_P(NODE) \ 2140 (DECL_NAME (NODE) && IDENTIFIER_TYPENAME_P (DECL_NAME (NODE))) 2141 2142 /* If FN is a conversion operator, the type to which it converts. 2143 Otherwise, NULL_TREE. */ 2144 #define DECL_CONV_FN_TYPE(FN) \ 2145 (DECL_CONV_FN_P (FN) ? TREE_TYPE (DECL_NAME (FN)) : NULL_TREE) 2146 2147 /* Nonzero if NODE, which is a TEMPLATE_DECL, is a template 2148 conversion operator to a type dependent on the innermost template 2149 args. */ 2150 #define DECL_TEMPLATE_CONV_FN_P(NODE) \ 2151 (DECL_LANG_SPECIFIC (TEMPLATE_DECL_CHECK (NODE))->u.base.template_conv_p) 2152 2153 /* Nonzero if NODE, a static data member, was declared in its class as an 2154 array of unknown bound. */ 2155 #define VAR_HAD_UNKNOWN_BOUND(NODE) \ 2156 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE)) \ 2157 ? DECL_LANG_SPECIFIC (NODE)->u.base.template_conv_p \ 2158 : false) 2159 #define SET_VAR_HAD_UNKNOWN_BOUND(NODE) \ 2160 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))->u.base.template_conv_p = true) 2161 2162 /* Set the overloaded operator code for NODE to CODE. */ 2163 #define SET_OVERLOADED_OPERATOR_CODE(NODE, CODE) \ 2164 (LANG_DECL_FN_CHECK (NODE)->operator_code = (CODE)) 2165 2166 /* If NODE is an overloaded operator, then this returns the TREE_CODE 2167 associated with the overloaded operator. 2168 DECL_ASSIGNMENT_OPERATOR_P must also be checked to determine 2169 whether or not NODE is an assignment operator. If NODE is not an 2170 overloaded operator, ERROR_MARK is returned. Since the numerical 2171 value of ERROR_MARK is zero, this macro can be used as a predicate 2172 to test whether or not NODE is an overloaded operator. */ 2173 #define DECL_OVERLOADED_OPERATOR_P(NODE) \ 2174 (IDENTIFIER_OPNAME_P (DECL_NAME (NODE)) \ 2175 ? LANG_DECL_FN_CHECK (NODE)->operator_code : ERROR_MARK) 2176 2177 /* Nonzero if NODE is an assignment operator (including += and such). */ 2178 #define DECL_ASSIGNMENT_OPERATOR_P(NODE) \ 2179 (LANG_DECL_FN_CHECK (NODE)->assignment_operator_p) 2180 2181 /* For FUNCTION_DECLs: nonzero means that this function is a 2182 constructor or a destructor with an extra in-charge parameter to 2183 control whether or not virtual bases are constructed. */ 2184 #define DECL_HAS_IN_CHARGE_PARM_P(NODE) \ 2185 (LANG_DECL_FN_CHECK (NODE)->has_in_charge_parm_p) 2186 2187 /* Nonzero if DECL is a declaration of __builtin_constant_p. */ 2188 #define DECL_IS_BUILTIN_CONSTANT_P(NODE) \ 2189 (TREE_CODE (NODE) == FUNCTION_DECL \ 2190 && DECL_BUILT_IN_CLASS (NODE) == BUILT_IN_NORMAL \ 2191 && DECL_FUNCTION_CODE (NODE) == BUILT_IN_CONSTANT_P) 2192 2193 /* Nonzero for _DECL means that this decl appears in (or will appear 2194 in) as a member in a RECORD_TYPE or UNION_TYPE node. It is also for 2195 detecting circularity in case members are multiply defined. In the 2196 case of a VAR_DECL, it is also used to determine how program storage 2197 should be allocated. */ 2198 #define DECL_IN_AGGR_P(NODE) (DECL_LANG_FLAG_3 (NODE)) 2199 2200 /* Nonzero for a VAR_DECL means that the variable's initialization (if 2201 any) has been processed. (In general, DECL_INITIALIZED_P is 2202 !DECL_EXTERN, but static data members may be initialized even if 2203 not defined.) */ 2204 #define DECL_INITIALIZED_P(NODE) \ 2205 (TREE_LANG_FLAG_1 (VAR_DECL_CHECK (NODE))) 2206 2207 /* Nonzero for a VAR_DECL iff an explicit initializer was provided. */ 2208 #define DECL_NONTRIVIALLY_INITIALIZED_P(NODE) \ 2209 (TREE_LANG_FLAG_3 (VAR_DECL_CHECK (NODE))) 2210 2211 /* Nonzero for a VAR_DECL that was initialized with a 2212 constant-expression. */ 2213 #define DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P(NODE) \ 2214 (TREE_LANG_FLAG_2 (VAR_DECL_CHECK (NODE))) 2215 2216 /* Nonzero if the DECL was initialized in the class definition itself, 2217 rather than outside the class. This is used for both static member 2218 VAR_DECLS, and FUNCTION_DECLS that are defined in the class. */ 2219 #define DECL_INITIALIZED_IN_CLASS_P(DECL) \ 2220 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \ 2221 ->u.base.initialized_in_class) 2222 2223 /* Nonzero if the DECL is used in the sense of 3.2 [basic.def.odr]. 2224 Only available for decls with DECL_LANG_SPECIFIC. */ 2225 #define DECL_ODR_USED(DECL) \ 2226 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \ 2227 ->u.base.odr_used) 2228 2229 /* Nonzero for DECL means that this decl is just a friend declaration, 2230 and should not be added to the list of members for this class. */ 2231 #define DECL_FRIEND_P(NODE) (DECL_LANG_SPECIFIC (NODE)->u.base.friend_attr) 2232 2233 /* A TREE_LIST of the types which have befriended this FUNCTION_DECL. */ 2234 #define DECL_BEFRIENDING_CLASSES(NODE) \ 2235 (LANG_DECL_FN_CHECK (NODE)->befriending_classes) 2236 2237 /* Nonzero for FUNCTION_DECL means that this decl is a static 2238 member function. */ 2239 #define DECL_STATIC_FUNCTION_P(NODE) \ 2240 (LANG_DECL_FN_CHECK (NODE)->static_function) 2241 2242 /* Nonzero for FUNCTION_DECL means that this decl is a non-static 2243 member function. */ 2244 #define DECL_NONSTATIC_MEMBER_FUNCTION_P(NODE) \ 2245 (TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE) 2246 2247 /* Nonzero for FUNCTION_DECL means that this decl is a member function 2248 (static or non-static). */ 2249 #define DECL_FUNCTION_MEMBER_P(NODE) \ 2250 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) || DECL_STATIC_FUNCTION_P (NODE)) 2251 2252 /* Nonzero for FUNCTION_DECL means that this member function 2253 has `this' as const X *const. */ 2254 #define DECL_CONST_MEMFUNC_P(NODE) \ 2255 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \ 2256 && CP_TYPE_CONST_P (TREE_TYPE (TREE_VALUE \ 2257 (TYPE_ARG_TYPES (TREE_TYPE (NODE)))))) 2258 2259 /* Nonzero for FUNCTION_DECL means that this member function 2260 has `this' as volatile X *const. */ 2261 #define DECL_VOLATILE_MEMFUNC_P(NODE) \ 2262 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \ 2263 && CP_TYPE_VOLATILE_P (TREE_TYPE (TREE_VALUE \ 2264 (TYPE_ARG_TYPES (TREE_TYPE (NODE)))))) 2265 2266 /* Nonzero for a DECL means that this member is a non-static member. */ 2267 #define DECL_NONSTATIC_MEMBER_P(NODE) \ 2268 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \ 2269 || TREE_CODE (NODE) == FIELD_DECL) 2270 2271 /* Nonzero for _DECL means that this member object type 2272 is mutable. */ 2273 #define DECL_MUTABLE_P(NODE) (DECL_LANG_FLAG_0 (NODE)) 2274 2275 /* Nonzero for _DECL means that this constructor or conversion function is 2276 non-converting. */ 2277 #define DECL_NONCONVERTING_P(NODE) \ 2278 (LANG_DECL_FN_CHECK (NODE)->nonconverting) 2279 2280 /* Nonzero for FUNCTION_DECL means that this member function is a pure 2281 virtual function. */ 2282 #define DECL_PURE_VIRTUAL_P(NODE) \ 2283 (LANG_DECL_FN_CHECK (NODE)->pure_virtual) 2284 2285 /* True (in a FUNCTION_DECL) if NODE is a virtual function that is an 2286 invalid overrider for a function from a base class. Once we have 2287 complained about an invalid overrider we avoid complaining about it 2288 again. */ 2289 #define DECL_INVALID_OVERRIDER_P(NODE) \ 2290 (DECL_LANG_FLAG_4 (NODE)) 2291 2292 /* The thunks associated with NODE, a FUNCTION_DECL. */ 2293 #define DECL_THUNKS(NODE) \ 2294 (LANG_DECL_FN_CHECK (NODE)->context) 2295 2296 /* Nonzero if NODE is a thunk, rather than an ordinary function. */ 2297 #define DECL_THUNK_P(NODE) \ 2298 (TREE_CODE (NODE) == FUNCTION_DECL \ 2299 && DECL_LANG_SPECIFIC (NODE) \ 2300 && LANG_DECL_FN_CHECK (NODE)->thunk_p) 2301 2302 /* Set DECL_THUNK_P for node. */ 2303 #define SET_DECL_THUNK_P(NODE, THIS_ADJUSTING) \ 2304 (LANG_DECL_FN_CHECK (NODE)->thunk_p = 1, \ 2305 LANG_DECL_FN_CHECK (NODE)->this_thunk_p = (THIS_ADJUSTING)) 2306 2307 /* Nonzero if NODE is a this pointer adjusting thunk. */ 2308 #define DECL_THIS_THUNK_P(NODE) \ 2309 (DECL_THUNK_P (NODE) && LANG_DECL_FN_CHECK (NODE)->this_thunk_p) 2310 2311 /* Nonzero if NODE is a result pointer adjusting thunk. */ 2312 #define DECL_RESULT_THUNK_P(NODE) \ 2313 (DECL_THUNK_P (NODE) && !LANG_DECL_FN_CHECK (NODE)->this_thunk_p) 2314 2315 /* Nonzero if NODE is a FUNCTION_DECL, but not a thunk. */ 2316 #define DECL_NON_THUNK_FUNCTION_P(NODE) \ 2317 (TREE_CODE (NODE) == FUNCTION_DECL && !DECL_THUNK_P (NODE)) 2318 2319 /* Nonzero if NODE is `extern "C"'. */ 2320 #define DECL_EXTERN_C_P(NODE) \ 2321 (DECL_LANGUAGE (NODE) == lang_c) 2322 2323 /* Nonzero if NODE is an `extern "C"' function. */ 2324 #define DECL_EXTERN_C_FUNCTION_P(NODE) \ 2325 (DECL_NON_THUNK_FUNCTION_P (NODE) && DECL_EXTERN_C_P (NODE)) 2326 2327 /* True iff DECL is an entity with vague linkage whose definition is 2328 available in this translation unit. */ 2329 #define DECL_REPO_AVAILABLE_P(NODE) \ 2330 (DECL_LANG_SPECIFIC (NODE)->u.base.repo_available_p) 2331 2332 /* True if DECL is declared 'constexpr'. */ 2333 #define DECL_DECLARED_CONSTEXPR_P(DECL) \ 2334 DECL_LANG_FLAG_8 (VAR_OR_FUNCTION_DECL_CHECK (STRIP_TEMPLATE (DECL))) 2335 2336 /* Nonzero if this DECL is the __PRETTY_FUNCTION__ variable in a 2337 template function. */ 2338 #define DECL_PRETTY_FUNCTION_P(NODE) \ 2339 (TREE_LANG_FLAG_0 (VAR_DECL_CHECK (NODE))) 2340 2341 /* The _TYPE context in which this _DECL appears. This field holds the 2342 class where a virtual function instance is actually defined. */ 2343 #define DECL_CLASS_CONTEXT(NODE) \ 2344 (DECL_CLASS_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : NULL_TREE) 2345 2346 /* For a non-member friend function, the class (if any) in which this 2347 friend was defined. For example, given: 2348 2349 struct S { friend void f (); }; 2350 2351 the DECL_FRIEND_CONTEXT for `f' will be `S'. */ 2352 #define DECL_FRIEND_CONTEXT(NODE) \ 2353 ((DECL_DECLARES_FUNCTION_P (NODE) \ 2354 && DECL_FRIEND_P (NODE) && !DECL_FUNCTION_MEMBER_P (NODE)) \ 2355 ? LANG_DECL_FN_CHECK (NODE)->context \ 2356 : NULL_TREE) 2357 2358 /* Set the DECL_FRIEND_CONTEXT for NODE to CONTEXT. */ 2359 #define SET_DECL_FRIEND_CONTEXT(NODE, CONTEXT) \ 2360 (LANG_DECL_FN_CHECK (NODE)->context = (CONTEXT)) 2361 2362 #define CP_DECL_CONTEXT(NODE) \ 2363 (!DECL_FILE_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : global_namespace) 2364 #define CP_TYPE_CONTEXT(NODE) \ 2365 (!TYPE_FILE_SCOPE_P (NODE) ? TYPE_CONTEXT (NODE) : global_namespace) 2366 #define FROB_CONTEXT(NODE) \ 2367 ((NODE) == global_namespace ? DECL_CONTEXT (NODE) : (NODE)) 2368 2369 /* 1 iff NODE has namespace scope, including the global namespace. */ 2370 #define DECL_NAMESPACE_SCOPE_P(NODE) \ 2371 (!DECL_TEMPLATE_PARM_P (NODE) \ 2372 && TREE_CODE (CP_DECL_CONTEXT (NODE)) == NAMESPACE_DECL) 2373 2374 #define TYPE_NAMESPACE_SCOPE_P(NODE) \ 2375 (TREE_CODE (CP_TYPE_CONTEXT (NODE)) == NAMESPACE_DECL) 2376 2377 #define NAMESPACE_SCOPE_P(NODE) \ 2378 ((DECL_P (NODE) && DECL_NAMESPACE_SCOPE_P (NODE)) \ 2379 || (TYPE_P (NODE) && TYPE_NAMESPACE_SCOPE_P (NODE))) 2380 2381 /* 1 iff NODE is a class member. */ 2382 #define DECL_CLASS_SCOPE_P(NODE) \ 2383 (DECL_CONTEXT (NODE) && TYPE_P (DECL_CONTEXT (NODE))) 2384 2385 #define TYPE_CLASS_SCOPE_P(NODE) \ 2386 (TYPE_CONTEXT (NODE) && TYPE_P (TYPE_CONTEXT (NODE))) 2387 2388 /* 1 iff NODE is function-local. */ 2389 #define DECL_FUNCTION_SCOPE_P(NODE) \ 2390 (DECL_CONTEXT (NODE) \ 2391 && TREE_CODE (DECL_CONTEXT (NODE)) == FUNCTION_DECL) 2392 2393 #define TYPE_FUNCTION_SCOPE_P(NODE) \ 2394 (TYPE_CONTEXT (NODE) && TREE_CODE (TYPE_CONTEXT (NODE)) == FUNCTION_DECL) 2395 2396 /* 1 iff VAR_DECL node NODE is a type-info decl. This flag is set for 2397 both the primary typeinfo object and the associated NTBS name. */ 2398 #define DECL_TINFO_P(NODE) TREE_LANG_FLAG_4 (VAR_DECL_CHECK (NODE)) 2399 2400 /* 1 iff VAR_DECL node NODE is virtual table or VTT. */ 2401 #define DECL_VTABLE_OR_VTT_P(NODE) TREE_LANG_FLAG_5 (VAR_DECL_CHECK (NODE)) 2402 2403 /* Returns 1 iff VAR_DECL is a construction virtual table. 2404 DECL_VTABLE_OR_VTT_P will be true in this case and must be checked 2405 before using this macro. */ 2406 #define DECL_CONSTRUCTION_VTABLE_P(NODE) \ 2407 TREE_LANG_FLAG_6 (VAR_DECL_CHECK (NODE)) 2408 2409 /* 1 iff NODE is function-local, but for types. */ 2410 #define LOCAL_CLASS_P(NODE) \ 2411 (decl_function_context (TYPE_MAIN_DECL (NODE)) != NULL_TREE) 2412 2413 /* For a NAMESPACE_DECL: the list of using namespace directives 2414 The PURPOSE is the used namespace, the value is the namespace 2415 that is the common ancestor. */ 2416 #define DECL_NAMESPACE_USING(NODE) DECL_VINDEX (NAMESPACE_DECL_CHECK (NODE)) 2417 2418 /* In a NAMESPACE_DECL, the DECL_INITIAL is used to record all users 2419 of a namespace, to record the transitive closure of using namespace. */ 2420 #define DECL_NAMESPACE_USERS(NODE) DECL_INITIAL (NAMESPACE_DECL_CHECK (NODE)) 2421 2422 /* In a NAMESPACE_DECL, the list of namespaces which have associated 2423 themselves with this one. */ 2424 #define DECL_NAMESPACE_ASSOCIATIONS(NODE) \ 2425 (NAMESPACE_DECL_CHECK (NODE)->decl_non_common.saved_tree) 2426 2427 /* In a NAMESPACE_DECL, points to the original namespace if this is 2428 a namespace alias. */ 2429 #define DECL_NAMESPACE_ALIAS(NODE) \ 2430 DECL_ABSTRACT_ORIGIN (NAMESPACE_DECL_CHECK (NODE)) 2431 #define ORIGINAL_NAMESPACE(NODE) \ 2432 (DECL_NAMESPACE_ALIAS (NODE) ? DECL_NAMESPACE_ALIAS (NODE) : (NODE)) 2433 2434 /* Nonzero if NODE is the std namespace. */ 2435 #define DECL_NAMESPACE_STD_P(NODE) \ 2436 (TREE_CODE (NODE) == NAMESPACE_DECL \ 2437 && CP_DECL_CONTEXT (NODE) == global_namespace \ 2438 && DECL_NAME (NODE) == std_identifier) 2439 2440 /* In a TREE_LIST concatenating using directives, indicate indirect 2441 directives */ 2442 #define TREE_INDIRECT_USING(NODE) (TREE_LIST_CHECK (NODE)->base.lang_flag_0) 2443 2444 /* In a TREE_LIST in an attribute list, indicates that the attribute 2445 must be applied at instantiation time. */ 2446 #define ATTR_IS_DEPENDENT(NODE) (TREE_LIST_CHECK (NODE)->base.lang_flag_0) 2447 2448 extern tree decl_shadowed_for_var_lookup (tree); 2449 extern void decl_shadowed_for_var_insert (tree, tree); 2450 2451 /* Non zero if this is a using decl for a dependent scope. */ 2452 #define DECL_DEPENDENT_P(NODE) DECL_LANG_FLAG_0 (USING_DECL_CHECK (NODE)) 2453 2454 /* The scope named in a using decl. */ 2455 #define USING_DECL_SCOPE(NODE) TREE_TYPE (USING_DECL_CHECK (NODE)) 2456 2457 /* The decls named by a using decl. */ 2458 #define USING_DECL_DECLS(NODE) DECL_INITIAL (USING_DECL_CHECK (NODE)) 2459 2460 /* In a VAR_DECL, true if we have a shadowed local variable 2461 in the shadowed var table for this VAR_DECL. */ 2462 #define DECL_HAS_SHADOWED_FOR_VAR_P(NODE) \ 2463 (VAR_DECL_CHECK (NODE)->decl_with_vis.shadowed_for_var_p) 2464 2465 /* In a VAR_DECL for a variable declared in a for statement, 2466 this is the shadowed (local) variable. */ 2467 #define DECL_SHADOWED_FOR_VAR(NODE) \ 2468 (DECL_HAS_SHADOWED_FOR_VAR_P(NODE) ? decl_shadowed_for_var_lookup (NODE) : NULL) 2469 2470 #define SET_DECL_SHADOWED_FOR_VAR(NODE, VAL) \ 2471 (decl_shadowed_for_var_insert (NODE, VAL)) 2472 2473 /* In a FUNCTION_DECL, this is nonzero if this function was defined in 2474 the class definition. We have saved away the text of the function, 2475 but have not yet processed it. */ 2476 #define DECL_PENDING_INLINE_P(NODE) \ 2477 (LANG_DECL_FN_CHECK (NODE)->pending_inline_p) 2478 2479 /* If DECL_PENDING_INLINE_P holds, this is the saved text of the 2480 function. */ 2481 #define DECL_PENDING_INLINE_INFO(NODE) \ 2482 (LANG_DECL_FN_CHECK (NODE)->u.pending_inline_info) 2483 2484 /* For a class type: if this structure has many fields, we'll sort them 2485 and put them into a TREE_VEC. */ 2486 #define CLASSTYPE_SORTED_FIELDS(NODE) \ 2487 (LANG_TYPE_CLASS_CHECK (NODE)->sorted_fields) 2488 2489 /* If non-NULL for a VAR_DECL, FUNCTION_DECL, TYPE_DECL or 2490 TEMPLATE_DECL, the entity is either a template specialization (if 2491 DECL_USE_TEMPLATE is nonzero) or the abstract instance of the 2492 template itself. 2493 2494 In either case, DECL_TEMPLATE_INFO is a TREE_LIST, whose 2495 TREE_PURPOSE is the TEMPLATE_DECL of which this entity is a 2496 specialization or abstract instance. The TREE_VALUE is the 2497 template arguments used to specialize the template. 2498 2499 Consider: 2500 2501 template <typename T> struct S { friend void f(T) {} }; 2502 2503 In this case, S<int>::f is, from the point of view of the compiler, 2504 an instantiation of a template -- but, from the point of view of 2505 the language, each instantiation of S results in a wholly unrelated 2506 global function f. In this case, DECL_TEMPLATE_INFO for S<int>::f 2507 will be non-NULL, but DECL_USE_TEMPLATE will be zero. */ 2508 #define DECL_TEMPLATE_INFO(NODE) \ 2509 (DECL_LANG_SPECIFIC (VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK (NODE)) \ 2510 ->u.min.template_info) 2511 2512 /* For a VAR_DECL, indicates that the variable is actually a 2513 non-static data member of anonymous union that has been promoted to 2514 variable status. */ 2515 #define DECL_ANON_UNION_VAR_P(NODE) \ 2516 (DECL_LANG_FLAG_4 (VAR_DECL_CHECK (NODE))) 2517 2518 /* Template information for a RECORD_TYPE or UNION_TYPE. */ 2519 #define CLASSTYPE_TEMPLATE_INFO(NODE) \ 2520 (LANG_TYPE_CLASS_CHECK (RECORD_OR_UNION_CHECK (NODE))->template_info) 2521 2522 /* Template information for an ENUMERAL_TYPE. Although an enumeration may 2523 not be a primary template, it may be declared within the scope of a 2524 primary template and the enumeration constants may depend on 2525 non-type template parameters. */ 2526 #define ENUM_TEMPLATE_INFO(NODE) \ 2527 (TYPE_LANG_SLOT_1 (ENUMERAL_TYPE_CHECK (NODE))) 2528 2529 /* Template information for a template template parameter. */ 2530 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO(NODE) \ 2531 (LANG_TYPE_CLASS_CHECK (BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK (NODE)) \ 2532 ->template_info) 2533 2534 /* Template information for an ENUMERAL_, RECORD_, or UNION_TYPE. */ 2535 #define TYPE_TEMPLATE_INFO(NODE) \ 2536 (TREE_CODE (NODE) == ENUMERAL_TYPE \ 2537 ? ENUM_TEMPLATE_INFO (NODE) : \ 2538 (TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM \ 2539 ? TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO (NODE) : \ 2540 (TYPE_LANG_SPECIFIC (NODE) \ 2541 ? CLASSTYPE_TEMPLATE_INFO (NODE) \ 2542 : NULL_TREE))) 2543 2544 /* Set the template information for an ENUMERAL_, RECORD_, or 2545 UNION_TYPE to VAL. */ 2546 #define SET_TYPE_TEMPLATE_INFO(NODE, VAL) \ 2547 (TREE_CODE (NODE) == ENUMERAL_TYPE \ 2548 ? (ENUM_TEMPLATE_INFO (NODE) = (VAL)) \ 2549 : (CLASSTYPE_TEMPLATE_INFO (NODE) = (VAL))) 2550 2551 #define TI_TEMPLATE(NODE) TREE_TYPE (TEMPLATE_INFO_CHECK (NODE)) 2552 #define TI_ARGS(NODE) TREE_CHAIN (TEMPLATE_INFO_CHECK (NODE)) 2553 #define TI_PENDING_TEMPLATE_FLAG(NODE) TREE_LANG_FLAG_1 (NODE) 2554 /* For a given TREE_VEC containing a template argument list, 2555 this property contains the number of arguments that are not 2556 defaulted. */ 2557 #define NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) TREE_CHAIN (TREE_VEC_CHECK (NODE)) 2558 /* Below are the setter and getter of the NON_DEFAULT_TEMPLATE_ARGS_COUNT 2559 property. */ 2560 #define SET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE, INT_VALUE) \ 2561 NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) = build_int_cst (NULL_TREE, INT_VALUE) 2562 #ifdef ENABLE_CHECKING 2563 #define GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) \ 2564 int_cst_value (NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE)) 2565 #else 2566 #define GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) \ 2567 NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE) \ 2568 ? int_cst_value (NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE)) \ 2569 : TREE_VEC_LENGTH (INNERMOST_TEMPLATE_ARGS (NODE)) 2570 #endif 2571 /* The list of typedefs - used in the template - that need 2572 access checking at template instantiation time. */ 2573 #define TI_TYPEDEFS_NEEDING_ACCESS_CHECKING(NODE) \ 2574 ((struct tree_template_info*)TEMPLATE_INFO_CHECK \ 2575 (NODE))->typedefs_needing_access_checking 2576 2577 /* We use TREE_VECs to hold template arguments. If there is only one 2578 level of template arguments, then the TREE_VEC contains the 2579 arguments directly. If there is more than one level of template 2580 arguments, then each entry in the TREE_VEC is itself a TREE_VEC, 2581 containing the template arguments for a single level. The first 2582 entry in the outer TREE_VEC is the outermost level of template 2583 parameters; the last is the innermost. 2584 2585 It is incorrect to ever form a template argument vector containing 2586 only one level of arguments, but which is a TREE_VEC containing as 2587 its only entry the TREE_VEC for that level. 2588 2589 For each TREE_VEC containing the template arguments for a single 2590 level, it's possible to get or set the number of non defaulted 2591 template arguments by using the accessor macros 2592 GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT or 2593 SET_NON_DEFAULT_TEMPLATE_ARGS_COUNT. */ 2594 2595 /* Nonzero if the template arguments is actually a vector of vectors, 2596 rather than just a vector. */ 2597 #define TMPL_ARGS_HAVE_MULTIPLE_LEVELS(NODE) \ 2598 (NODE && TREE_VEC_LENGTH (NODE) && TREE_VEC_ELT (NODE, 0) \ 2599 && TREE_CODE (TREE_VEC_ELT (NODE, 0)) == TREE_VEC) 2600 2601 /* The depth of a template argument vector. When called directly by 2602 the parser, we use a TREE_LIST rather than a TREE_VEC to represent 2603 template arguments. In fact, we may even see NULL_TREE if there 2604 are no template arguments. In both of those cases, there is only 2605 one level of template arguments. */ 2606 #define TMPL_ARGS_DEPTH(NODE) \ 2607 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (NODE) ? TREE_VEC_LENGTH (NODE) : 1) 2608 2609 /* The LEVELth level of the template ARGS. The outermost level of 2610 args is level 1, not level 0. */ 2611 #define TMPL_ARGS_LEVEL(ARGS, LEVEL) \ 2612 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (ARGS) \ 2613 ? TREE_VEC_ELT (ARGS, (LEVEL) - 1) : (ARGS)) 2614 2615 /* Set the LEVELth level of the template ARGS to VAL. This macro does 2616 not work with single-level argument vectors. */ 2617 #define SET_TMPL_ARGS_LEVEL(ARGS, LEVEL, VAL) \ 2618 (TREE_VEC_ELT (ARGS, (LEVEL) - 1) = (VAL)) 2619 2620 /* Accesses the IDXth parameter in the LEVELth level of the ARGS. */ 2621 #define TMPL_ARG(ARGS, LEVEL, IDX) \ 2622 (TREE_VEC_ELT (TMPL_ARGS_LEVEL (ARGS, LEVEL), IDX)) 2623 2624 /* Given a single level of template arguments in NODE, return the 2625 number of arguments. */ 2626 #define NUM_TMPL_ARGS(NODE) \ 2627 (TREE_VEC_LENGTH (NODE)) 2628 2629 /* Returns the innermost level of template arguments in ARGS. */ 2630 #define INNERMOST_TEMPLATE_ARGS(NODE) \ 2631 (get_innermost_template_args ((NODE), 1)) 2632 2633 /* The number of levels of template parameters given by NODE. */ 2634 #define TMPL_PARMS_DEPTH(NODE) \ 2635 ((HOST_WIDE_INT) TREE_INT_CST_LOW (TREE_PURPOSE (NODE))) 2636 2637 /* The TEMPLATE_DECL instantiated or specialized by NODE. This 2638 TEMPLATE_DECL will be the immediate parent, not the most general 2639 template. For example, in: 2640 2641 template <class T> struct S { template <class U> void f(U); } 2642 2643 the FUNCTION_DECL for S<int>::f<double> will have, as its 2644 DECL_TI_TEMPLATE, `template <class U> S<int>::f<U>'. 2645 2646 As a special case, for a member friend template of a template 2647 class, this value will not be a TEMPLATE_DECL, but rather an 2648 IDENTIFIER_NODE or OVERLOAD indicating the name of the template and 2649 any explicit template arguments provided. For example, in: 2650 2651 template <class T> struct S { friend void f<int>(int, double); } 2652 2653 the DECL_TI_TEMPLATE will be an IDENTIFIER_NODE for `f' and the 2654 DECL_TI_ARGS will be {int}. */ 2655 #define DECL_TI_TEMPLATE(NODE) TI_TEMPLATE (DECL_TEMPLATE_INFO (NODE)) 2656 2657 /* The template arguments used to obtain this decl from the most 2658 general form of DECL_TI_TEMPLATE. For the example given for 2659 DECL_TI_TEMPLATE, the DECL_TI_ARGS will be {int, double}. These 2660 are always the full set of arguments required to instantiate this 2661 declaration from the most general template specialized here. */ 2662 #define DECL_TI_ARGS(NODE) TI_ARGS (DECL_TEMPLATE_INFO (NODE)) 2663 2664 /* The TEMPLATE_DECL associated with NODE, a class type. Even if NODE 2665 will be generated from a partial specialization, the TEMPLATE_DECL 2666 referred to here will be the original template. For example, 2667 given: 2668 2669 template <typename T> struct S {}; 2670 template <typename T> struct S<T*> {}; 2671 2672 the CLASSTPYE_TI_TEMPLATE for S<int*> will be S, not the S<T*>. */ 2673 #define CLASSTYPE_TI_TEMPLATE(NODE) TI_TEMPLATE (CLASSTYPE_TEMPLATE_INFO (NODE)) 2674 #define CLASSTYPE_TI_ARGS(NODE) TI_ARGS (CLASSTYPE_TEMPLATE_INFO (NODE)) 2675 2676 /* For a template instantiation TYPE, returns the TYPE corresponding 2677 to the primary template. Otherwise returns TYPE itself. */ 2678 #define CLASSTYPE_PRIMARY_TEMPLATE_TYPE(TYPE) \ 2679 ((CLASSTYPE_USE_TEMPLATE ((TYPE)) \ 2680 && !CLASSTYPE_TEMPLATE_SPECIALIZATION ((TYPE))) \ 2681 ? TREE_TYPE (DECL_TEMPLATE_RESULT (DECL_PRIMARY_TEMPLATE \ 2682 (CLASSTYPE_TI_TEMPLATE ((TYPE))))) \ 2683 : (TYPE)) 2684 2685 /* Like CLASS_TI_TEMPLATE, but also works for ENUMERAL_TYPEs. */ 2686 #define TYPE_TI_TEMPLATE(NODE) \ 2687 (TI_TEMPLATE (TYPE_TEMPLATE_INFO (NODE))) 2688 2689 /* Like DECL_TI_ARGS, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */ 2690 #define TYPE_TI_ARGS(NODE) \ 2691 (TI_ARGS (TYPE_TEMPLATE_INFO (NODE))) 2692 2693 #define INNERMOST_TEMPLATE_PARMS(NODE) TREE_VALUE (NODE) 2694 2695 /* Nonzero if NODE (a TEMPLATE_DECL) is a member template, in the 2696 sense of [temp.mem]. */ 2697 #define DECL_MEMBER_TEMPLATE_P(NODE) \ 2698 (DECL_LANG_FLAG_1 (TEMPLATE_DECL_CHECK (NODE))) 2699 2700 /* Nonzero if the NODE corresponds to the template parameters for a 2701 member template, whose inline definition is being processed after 2702 the class definition is complete. */ 2703 #define TEMPLATE_PARMS_FOR_INLINE(NODE) TREE_LANG_FLAG_1 (NODE) 2704 2705 /* Determine if a parameter (i.e., a PARM_DECL) is a function 2706 parameter pack. */ 2707 #define FUNCTION_PARAMETER_PACK_P(NODE) \ 2708 (DECL_LANG_FLAG_1 (PARM_DECL_CHECK (NODE))) 2709 2710 /* Determines if NODE is an expansion of one or more parameter packs, 2711 e.g., a TYPE_PACK_EXPANSION or EXPR_PACK_EXPANSION. */ 2712 #define PACK_EXPANSION_P(NODE) \ 2713 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION \ 2714 || TREE_CODE (NODE) == EXPR_PACK_EXPANSION) 2715 2716 /* Extracts the type or expression pattern from a TYPE_PACK_EXPANSION or 2717 EXPR_PACK_EXPANSION. */ 2718 #define PACK_EXPANSION_PATTERN(NODE) \ 2719 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION? TREE_TYPE (NODE) \ 2720 : TREE_OPERAND (NODE, 0)) 2721 2722 /* Sets the type or expression pattern for a TYPE_PACK_EXPANSION or 2723 EXPR_PACK_EXPANSION. */ 2724 #define SET_PACK_EXPANSION_PATTERN(NODE,VALUE) \ 2725 if (TREE_CODE (NODE) == TYPE_PACK_EXPANSION) \ 2726 TREE_TYPE (NODE) = VALUE; \ 2727 else \ 2728 TREE_OPERAND (NODE, 0) = VALUE 2729 2730 /* The list of parameter packs used in the PACK_EXPANSION_* node. The 2731 TREE_VALUE of each TREE_LIST contains the parameter packs. */ 2732 #define PACK_EXPANSION_PARAMETER_PACKS(NODE) TREE_CHAIN (NODE) 2733 2734 /* Determine if this is an argument pack. */ 2735 #define ARGUMENT_PACK_P(NODE) \ 2736 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK \ 2737 || TREE_CODE (NODE) == NONTYPE_ARGUMENT_PACK) 2738 2739 /* The arguments stored in an argument pack. Arguments are stored in a 2740 TREE_VEC, which may have length zero. */ 2741 #define ARGUMENT_PACK_ARGS(NODE) \ 2742 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK? TREE_TYPE (NODE) \ 2743 : TREE_OPERAND (NODE, 0)) 2744 2745 /* Set the arguments stored in an argument pack. VALUE must be a 2746 TREE_VEC. */ 2747 #define SET_ARGUMENT_PACK_ARGS(NODE,VALUE) \ 2748 if (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK) \ 2749 TREE_TYPE (NODE) = VALUE; \ 2750 else \ 2751 TREE_OPERAND (NODE, 0) = VALUE 2752 2753 /* Whether the argument pack is "incomplete", meaning that more 2754 arguments can still be deduced. Incomplete argument packs are only 2755 used when the user has provided an explicit template argument list 2756 for a variadic function template. Some of the explicit template 2757 arguments will be placed into the beginning of the argument pack, 2758 but additional arguments might still be deduced. */ 2759 #define ARGUMENT_PACK_INCOMPLETE_P(NODE) \ 2760 TREE_LANG_FLAG_0 (ARGUMENT_PACK_ARGS (NODE)) 2761 2762 /* When ARGUMENT_PACK_INCOMPLETE_P, stores the explicit template 2763 arguments used to fill this pack. */ 2764 #define ARGUMENT_PACK_EXPLICIT_ARGS(NODE) \ 2765 TREE_TYPE (ARGUMENT_PACK_ARGS (NODE)) 2766 2767 /* In an ARGUMENT_PACK_SELECT, the argument pack from which an 2768 argument will be selected. */ 2769 #define ARGUMENT_PACK_SELECT_FROM_PACK(NODE) \ 2770 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->argument_pack) 2771 2772 /* In an ARGUMENT_PACK_SELECT, the index of the argument we want to 2773 select. */ 2774 #define ARGUMENT_PACK_SELECT_INDEX(NODE) \ 2775 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->index) 2776 2777 /* In an ARGUMENT_PACK_SELECT, the actual underlying argument that the 2778 ARGUMENT_PACK_SELECT represents. */ 2779 #define ARGUMENT_PACK_SELECT_ARG(NODE) \ 2780 TREE_VEC_ELT (ARGUMENT_PACK_ARGS (ARGUMENT_PACK_SELECT_FROM_PACK (NODE)), \ 2781 ARGUMENT_PACK_SELECT_INDEX (NODE)); 2782 2783 /* In a FUNCTION_DECL, the saved language-specific per-function data. */ 2784 #define DECL_SAVED_FUNCTION_DATA(NODE) \ 2785 (LANG_DECL_FN_CHECK (FUNCTION_DECL_CHECK (NODE)) \ 2786 ->u.saved_language_function) 2787 2788 /* Indicates an indirect_expr is for converting a reference. */ 2789 #define REFERENCE_REF_P(NODE) \ 2790 TREE_LANG_FLAG_0 (INDIRECT_REF_CHECK (NODE)) 2791 2792 #define NEW_EXPR_USE_GLOBAL(NODE) \ 2793 TREE_LANG_FLAG_0 (NEW_EXPR_CHECK (NODE)) 2794 #define DELETE_EXPR_USE_GLOBAL(NODE) \ 2795 TREE_LANG_FLAG_0 (DELETE_EXPR_CHECK (NODE)) 2796 #define DELETE_EXPR_USE_VEC(NODE) \ 2797 TREE_LANG_FLAG_1 (DELETE_EXPR_CHECK (NODE)) 2798 2799 /* Indicates that this is a non-dependent COMPOUND_EXPR which will 2800 resolve to a function call. */ 2801 #define COMPOUND_EXPR_OVERLOADED(NODE) \ 2802 TREE_LANG_FLAG_0 (COMPOUND_EXPR_CHECK (NODE)) 2803 2804 /* In a CALL_EXPR appearing in a template, true if Koenig lookup 2805 should be performed at instantiation time. */ 2806 #define KOENIG_LOOKUP_P(NODE) TREE_LANG_FLAG_0 (CALL_EXPR_CHECK (NODE)) 2807 2808 /* Indicates whether a string literal has been parenthesized. Such 2809 usages are disallowed in certain circumstances. */ 2810 2811 #define PAREN_STRING_LITERAL_P(NODE) \ 2812 TREE_LANG_FLAG_0 (STRING_CST_CHECK (NODE)) 2813 2814 /* Nonzero if this AGGR_INIT_EXPR provides for initialization via a 2815 constructor call, rather than an ordinary function call. */ 2816 #define AGGR_INIT_VIA_CTOR_P(NODE) \ 2817 TREE_LANG_FLAG_0 (AGGR_INIT_EXPR_CHECK (NODE)) 2818 2819 /* Nonzero if expanding this AGGR_INIT_EXPR should first zero-initialize 2820 the object. */ 2821 #define AGGR_INIT_ZERO_FIRST(NODE) \ 2822 TREE_LANG_FLAG_2 (AGGR_INIT_EXPR_CHECK (NODE)) 2823 2824 /* AGGR_INIT_EXPR accessors. These are equivalent to the CALL_EXPR 2825 accessors, except for AGGR_INIT_EXPR_SLOT (which takes the place of 2826 CALL_EXPR_STATIC_CHAIN). */ 2827 2828 #define AGGR_INIT_EXPR_FN(NODE) TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 1) 2829 #define AGGR_INIT_EXPR_SLOT(NODE) \ 2830 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 2) 2831 #define AGGR_INIT_EXPR_ARG(NODE, I) \ 2832 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), (I) + 3) 2833 #define aggr_init_expr_nargs(NODE) (VL_EXP_OPERAND_LENGTH(NODE) - 3) 2834 2835 /* AGGR_INIT_EXPR_ARGP returns a pointer to the argument vector for NODE. 2836 We can't use &AGGR_INIT_EXPR_ARG (NODE, 0) because that will complain if 2837 the argument count is zero when checking is enabled. Instead, do 2838 the pointer arithmetic to advance past the 3 fixed operands in a 2839 AGGR_INIT_EXPR. That produces a valid pointer to just past the end of 2840 the operand array, even if it's not valid to dereference it. */ 2841 #define AGGR_INIT_EXPR_ARGP(NODE) \ 2842 (&(TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 0)) + 3) 2843 2844 /* Abstract iterators for AGGR_INIT_EXPRs. */ 2845 2846 /* Structure containing iterator state. */ 2847 typedef struct aggr_init_expr_arg_iterator_d { 2848 tree t; /* the aggr_init_expr */ 2849 int n; /* argument count */ 2850 int i; /* next argument index */ 2851 } aggr_init_expr_arg_iterator; 2852 2853 /* Initialize the abstract argument list iterator object ITER with the 2854 arguments from AGGR_INIT_EXPR node EXP. */ 2855 static inline void 2856 init_aggr_init_expr_arg_iterator (tree exp, 2857 aggr_init_expr_arg_iterator *iter) 2858 { 2859 iter->t = exp; 2860 iter->n = aggr_init_expr_nargs (exp); 2861 iter->i = 0; 2862 } 2863 2864 /* Return the next argument from abstract argument list iterator object ITER, 2865 and advance its state. Return NULL_TREE if there are no more arguments. */ 2866 static inline tree 2867 next_aggr_init_expr_arg (aggr_init_expr_arg_iterator *iter) 2868 { 2869 tree result; 2870 if (iter->i >= iter->n) 2871 return NULL_TREE; 2872 result = AGGR_INIT_EXPR_ARG (iter->t, iter->i); 2873 iter->i++; 2874 return result; 2875 } 2876 2877 /* Initialize the abstract argument list iterator object ITER, then advance 2878 past and return the first argument. Useful in for expressions, e.g. 2879 for (arg = first_aggr_init_expr_arg (exp, &iter); arg; 2880 arg = next_aggr_init_expr_arg (&iter)) */ 2881 static inline tree 2882 first_aggr_init_expr_arg (tree exp, aggr_init_expr_arg_iterator *iter) 2883 { 2884 init_aggr_init_expr_arg_iterator (exp, iter); 2885 return next_aggr_init_expr_arg (iter); 2886 } 2887 2888 /* Test whether there are more arguments in abstract argument list iterator 2889 ITER, without changing its state. */ 2890 static inline bool 2891 more_aggr_init_expr_args_p (const aggr_init_expr_arg_iterator *iter) 2892 { 2893 return (iter->i < iter->n); 2894 } 2895 2896 /* Iterate through each argument ARG of AGGR_INIT_EXPR CALL, using variable 2897 ITER (of type aggr_init_expr_arg_iterator) to hold the iteration state. */ 2898 #define FOR_EACH_AGGR_INIT_EXPR_ARG(arg, iter, call) \ 2899 for ((arg) = first_aggr_init_expr_arg ((call), &(iter)); (arg); \ 2900 (arg) = next_aggr_init_expr_arg (&(iter))) 2901 2902 /* VEC_INIT_EXPR accessors. */ 2903 #define VEC_INIT_EXPR_SLOT(NODE) TREE_OPERAND (NODE, 0) 2904 #define VEC_INIT_EXPR_INIT(NODE) TREE_OPERAND (NODE, 1) 2905 2906 /* Indicates that a VEC_INIT_EXPR is a potential constant expression. 2907 Only set when the current function is constexpr. */ 2908 #define VEC_INIT_EXPR_IS_CONSTEXPR(NODE) \ 2909 TREE_LANG_FLAG_0 (VEC_INIT_EXPR_CHECK (NODE)) 2910 2911 /* Indicates that a VEC_INIT_EXPR is expressing value-initialization. */ 2912 #define VEC_INIT_EXPR_VALUE_INIT(NODE) \ 2913 TREE_LANG_FLAG_1 (VEC_INIT_EXPR_CHECK (NODE)) 2914 2915 /* The TYPE_MAIN_DECL for a class template type is a TYPE_DECL, not a 2916 TEMPLATE_DECL. This macro determines whether or not a given class 2917 type is really a template type, as opposed to an instantiation or 2918 specialization of one. */ 2919 #define CLASSTYPE_IS_TEMPLATE(NODE) \ 2920 (CLASSTYPE_TEMPLATE_INFO (NODE) \ 2921 && !CLASSTYPE_USE_TEMPLATE (NODE) \ 2922 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE))) 2923 2924 /* The name used by the user to name the typename type. Typically, 2925 this is an IDENTIFIER_NODE, and the same as the DECL_NAME on the 2926 corresponding TYPE_DECL. However, this may also be a 2927 TEMPLATE_ID_EXPR if we had something like `typename X::Y<T>'. */ 2928 #define TYPENAME_TYPE_FULLNAME(NODE) (TYPENAME_TYPE_CHECK (NODE))->type.values 2929 2930 /* True if a TYPENAME_TYPE was declared as an "enum". */ 2931 #define TYPENAME_IS_ENUM_P(NODE) \ 2932 (TREE_LANG_FLAG_0 (TYPENAME_TYPE_CHECK (NODE))) 2933 2934 /* True if a TYPENAME_TYPE was declared as a "class", "struct", or 2935 "union". */ 2936 #define TYPENAME_IS_CLASS_P(NODE) \ 2937 (TREE_LANG_FLAG_1 (TYPENAME_TYPE_CHECK (NODE))) 2938 2939 /* True if a TYPENAME_TYPE is in the process of being resolved. */ 2940 #define TYPENAME_IS_RESOLVING_P(NODE) \ 2941 (TREE_LANG_FLAG_2 (TYPENAME_TYPE_CHECK (NODE))) 2942 2943 /* Nonzero in INTEGER_CST means that this int is negative by dint of 2944 using a twos-complement negated operand. */ 2945 #define TREE_NEGATED_INT(NODE) TREE_LANG_FLAG_0 (INTEGER_CST_CHECK (NODE)) 2946 2947 /* [class.virtual] 2948 2949 A class that declares or inherits a virtual function is called a 2950 polymorphic class. */ 2951 #define TYPE_POLYMORPHIC_P(NODE) (TREE_LANG_FLAG_2 (NODE)) 2952 2953 /* Nonzero if this class has a virtual function table pointer. */ 2954 #define TYPE_CONTAINS_VPTR_P(NODE) \ 2955 (TYPE_POLYMORPHIC_P (NODE) || CLASSTYPE_VBASECLASSES (NODE)) 2956 2957 /* This flag is true of a local VAR_DECL if it was declared in a for 2958 statement, but we are no longer in the scope of the for. */ 2959 #define DECL_DEAD_FOR_LOCAL(NODE) DECL_LANG_FLAG_7 (VAR_DECL_CHECK (NODE)) 2960 2961 /* This flag is set on a VAR_DECL that is a DECL_DEAD_FOR_LOCAL 2962 if we already emitted a warning about using it. */ 2963 #define DECL_ERROR_REPORTED(NODE) DECL_LANG_FLAG_0 (VAR_DECL_CHECK (NODE)) 2964 2965 /* Nonzero if NODE is a FUNCTION_DECL (for a function with global 2966 scope) declared in a local scope. */ 2967 #define DECL_LOCAL_FUNCTION_P(NODE) \ 2968 DECL_LANG_FLAG_0 (FUNCTION_DECL_CHECK (NODE)) 2969 2970 /* Nonzero if NODE is a DECL which we know about but which has not 2971 been explicitly declared, such as a built-in function or a friend 2972 declared inside a class. In the latter case DECL_HIDDEN_FRIEND_P 2973 will be set. */ 2974 #define DECL_ANTICIPATED(NODE) \ 2975 (DECL_LANG_SPECIFIC (DECL_COMMON_CHECK (NODE))->u.base.anticipated_p) 2976 2977 /* Nonzero if NODE is a FUNCTION_DECL which was declared as a friend 2978 within a class but has not been declared in the surrounding scope. 2979 The function is invisible except via argument dependent lookup. */ 2980 #define DECL_HIDDEN_FRIEND_P(NODE) \ 2981 (LANG_DECL_FN_CHECK (DECL_COMMON_CHECK (NODE))->hidden_friend_p) 2982 2983 /* Nonzero if DECL has been declared threadprivate by 2984 #pragma omp threadprivate. */ 2985 #define CP_DECL_THREADPRIVATE_P(DECL) \ 2986 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (DECL))->u.base.threadprivate_or_deleted_p) 2987 2988 /* Nonzero if DECL was declared with '= delete'. */ 2989 #define DECL_DELETED_FN(DECL) \ 2990 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->u.base.threadprivate_or_deleted_p) 2991 2992 /* Nonzero if DECL was declared with '= default' (maybe implicitly). */ 2993 #define DECL_DEFAULTED_FN(DECL) \ 2994 (LANG_DECL_FN_CHECK (DECL)->defaulted_p) 2995 2996 /* Nonzero if DECL is explicitly defaulted in the class body. */ 2997 #define DECL_DEFAULTED_IN_CLASS_P(DECL) \ 2998 (DECL_DEFAULTED_FN (DECL) && DECL_INITIALIZED_IN_CLASS_P (DECL)) 2999 /* Nonzero if DECL was defaulted outside the class body. */ 3000 #define DECL_DEFAULTED_OUTSIDE_CLASS_P(DECL) \ 3001 (DECL_DEFAULTED_FN (DECL) \ 3002 && !(DECL_ARTIFICIAL (DECL) || DECL_INITIALIZED_IN_CLASS_P (DECL))) 3003 3004 /* Record whether a typedef for type `int' was actually `signed int'. */ 3005 #define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP) 3006 3007 /* Returns nonzero if DECL has external linkage, as specified by the 3008 language standard. (This predicate may hold even when the 3009 corresponding entity is not actually given external linkage in the 3010 object file; see decl_linkage for details.) */ 3011 #define DECL_EXTERNAL_LINKAGE_P(DECL) \ 3012 (decl_linkage (DECL) == lk_external) 3013 3014 /* Keep these codes in ascending code order. */ 3015 3016 #define INTEGRAL_CODE_P(CODE) \ 3017 ((CODE) == ENUMERAL_TYPE \ 3018 || (CODE) == BOOLEAN_TYPE \ 3019 || (CODE) == INTEGER_TYPE) 3020 3021 /* [basic.fundamental] 3022 3023 Types bool, char, wchar_t, and the signed and unsigned integer types 3024 are collectively called integral types. 3025 3026 Note that INTEGRAL_TYPE_P, as defined in tree.h, allows enumeration 3027 types as well, which is incorrect in C++. Keep these checks in 3028 ascending code order. */ 3029 #define CP_INTEGRAL_TYPE_P(TYPE) \ 3030 (TREE_CODE (TYPE) == BOOLEAN_TYPE \ 3031 || TREE_CODE (TYPE) == INTEGER_TYPE) 3032 3033 /* Returns true if TYPE is an integral or enumeration name. Keep 3034 these checks in ascending code order. */ 3035 #define INTEGRAL_OR_ENUMERATION_TYPE_P(TYPE) \ 3036 (TREE_CODE (TYPE) == ENUMERAL_TYPE || CP_INTEGRAL_TYPE_P (TYPE)) 3037 3038 /* Returns true if TYPE is an integral or unscoped enumeration type. */ 3039 #define INTEGRAL_OR_UNSCOPED_ENUMERATION_TYPE_P(TYPE) \ 3040 (UNSCOPED_ENUM_P (TYPE) || CP_INTEGRAL_TYPE_P (TYPE)) 3041 3042 /* True if the class type TYPE is a literal type. */ 3043 #define CLASSTYPE_LITERAL_P(TYPE) \ 3044 (LANG_TYPE_CLASS_CHECK (TYPE)->is_literal) 3045 3046 /* [basic.fundamental] 3047 3048 Integral and floating types are collectively called arithmetic 3049 types. 3050 3051 As a GNU extension, we also accept complex types. 3052 3053 Keep these checks in ascending code order. */ 3054 #define ARITHMETIC_TYPE_P(TYPE) \ 3055 (CP_INTEGRAL_TYPE_P (TYPE) \ 3056 || TREE_CODE (TYPE) == REAL_TYPE \ 3057 || TREE_CODE (TYPE) == COMPLEX_TYPE) 3058 3059 /* True iff TYPE is cv decltype(nullptr). */ 3060 #define NULLPTR_TYPE_P(TYPE) (TREE_CODE (TYPE) == NULLPTR_TYPE) 3061 3062 /* [basic.types] 3063 3064 Arithmetic types, enumeration types, pointer types, 3065 pointer-to-member types, and std::nullptr_t are collectively called 3066 scalar types. 3067 3068 Keep these checks in ascending code order. */ 3069 #define SCALAR_TYPE_P(TYPE) \ 3070 (TYPE_PTRMEM_P (TYPE) \ 3071 || TREE_CODE (TYPE) == ENUMERAL_TYPE \ 3072 || ARITHMETIC_TYPE_P (TYPE) \ 3073 || TYPE_PTR_P (TYPE) \ 3074 || TYPE_PTRMEMFUNC_P (TYPE) \ 3075 || NULLPTR_TYPE_P (TYPE)) 3076 3077 /* Determines whether this type is a C++0x scoped enumeration 3078 type. Scoped enumerations types are introduced via "enum class" or 3079 "enum struct", e.g., 3080 3081 enum class Color { 3082 Red, Green, Blue 3083 }; 3084 3085 Scoped enumeration types are different from normal (unscoped) 3086 enumeration types in several ways: 3087 3088 - The enumerators of a scoped enumeration type are only available 3089 within the scope of the enumeration type and not in the 3090 enclosing scope. For example, the Red color can be referred to 3091 with "Color::Red" but not "Red". 3092 3093 - Scoped enumerators and enumerations do not implicitly convert 3094 to integers or 'bool'. 3095 3096 - The underlying type of the enum is well-defined. */ 3097 #define SCOPED_ENUM_P(TYPE) \ 3098 (TREE_CODE (TYPE) == ENUMERAL_TYPE && ENUM_IS_SCOPED (TYPE)) 3099 3100 /* Determine whether this is an unscoped enumeration type. */ 3101 #define UNSCOPED_ENUM_P(TYPE) \ 3102 (TREE_CODE (TYPE) == ENUMERAL_TYPE && !ENUM_IS_SCOPED (TYPE)) 3103 3104 /* Set the flag indicating whether an ENUMERAL_TYPE is a C++0x scoped 3105 enumeration type (1) or a normal (unscoped) enumeration type 3106 (0). */ 3107 #define SET_SCOPED_ENUM_P(TYPE, VAL) \ 3108 (ENUM_IS_SCOPED (TYPE) = (VAL)) 3109 3110 #define SET_OPAQUE_ENUM_P(TYPE, VAL) \ 3111 (ENUM_IS_OPAQUE (TYPE) = (VAL)) 3112 3113 #define OPAQUE_ENUM_P(TYPE) \ 3114 (TREE_CODE (TYPE) == ENUMERAL_TYPE && ENUM_IS_OPAQUE (TYPE)) 3115 3116 /* Determines whether an ENUMERAL_TYPE has an explicit 3117 underlying type. */ 3118 #define ENUM_FIXED_UNDERLYING_TYPE_P(NODE) (TYPE_LANG_FLAG_5 (NODE)) 3119 3120 /* Returns the underlying type of the given enumeration type. The 3121 underlying type is determined in different ways, depending on the 3122 properties of the enum: 3123 3124 - In C++0x, the underlying type can be explicitly specified, e.g., 3125 3126 enum E1 : char { ... } // underlying type is char 3127 3128 - In a C++0x scoped enumeration, the underlying type is int 3129 unless otherwises specified: 3130 3131 enum class E2 { ... } // underlying type is int 3132 3133 - Otherwise, the underlying type is determined based on the 3134 values of the enumerators. In this case, the 3135 ENUM_UNDERLYING_TYPE will not be set until after the definition 3136 of the enumeration is completed by finish_enum. */ 3137 #define ENUM_UNDERLYING_TYPE(TYPE) \ 3138 TREE_TYPE (ENUMERAL_TYPE_CHECK (TYPE)) 3139 3140 /* [dcl.init.aggr] 3141 3142 An aggregate is an array or a class with no user-declared 3143 constructors, no private or protected non-static data members, no 3144 base classes, and no virtual functions. 3145 3146 As an extension, we also treat vectors as aggregates. Keep these 3147 checks in ascending code order. */ 3148 #define CP_AGGREGATE_TYPE_P(TYPE) \ 3149 (TREE_CODE (TYPE) == VECTOR_TYPE \ 3150 ||TREE_CODE (TYPE) == ARRAY_TYPE \ 3151 || (CLASS_TYPE_P (TYPE) && !CLASSTYPE_NON_AGGREGATE (TYPE))) 3152 3153 /* Nonzero for a class type means that the class type has a 3154 user-declared constructor. */ 3155 #define TYPE_HAS_USER_CONSTRUCTOR(NODE) (TYPE_LANG_FLAG_1 (NODE)) 3156 3157 /* When appearing in an INDIRECT_REF, it means that the tree structure 3158 underneath is actually a call to a constructor. This is needed 3159 when the constructor must initialize local storage (which can 3160 be automatically destroyed), rather than allowing it to allocate 3161 space from the heap. 3162 3163 When appearing in a SAVE_EXPR, it means that underneath 3164 is a call to a constructor. 3165 3166 When appearing in a CONSTRUCTOR, the expression is a 3167 compound literal. 3168 3169 When appearing in a FIELD_DECL, it means that this field 3170 has been duly initialized in its constructor. */ 3171 #define TREE_HAS_CONSTRUCTOR(NODE) (TREE_LANG_FLAG_4 (NODE)) 3172 3173 /* True if NODE is a brace-enclosed initializer. */ 3174 #define BRACE_ENCLOSED_INITIALIZER_P(NODE) \ 3175 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_TYPE (NODE) == init_list_type_node) 3176 3177 /* True if NODE is a compound-literal, i.e., a brace-enclosed 3178 initializer cast to a particular type. */ 3179 #define COMPOUND_LITERAL_P(NODE) \ 3180 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_HAS_CONSTRUCTOR (NODE)) 3181 3182 #define EMPTY_CONSTRUCTOR_P(NODE) (TREE_CODE (NODE) == CONSTRUCTOR \ 3183 && VEC_empty (constructor_elt, \ 3184 CONSTRUCTOR_ELTS (NODE)) \ 3185 && !TREE_HAS_CONSTRUCTOR (NODE)) 3186 3187 /* True if NODE is a init-list used as a direct-initializer, i.e. 3188 B b{1,2}, not B b({1,2}) or B b = {1,2}. */ 3189 #define CONSTRUCTOR_IS_DIRECT_INIT(NODE) (TREE_LANG_FLAG_0 (CONSTRUCTOR_CHECK (NODE))) 3190 3191 /* Nonzero means that an object of this type can not be initialized using 3192 an initializer list. */ 3193 #define CLASSTYPE_NON_AGGREGATE(NODE) \ 3194 (LANG_TYPE_CLASS_CHECK (NODE)->non_aggregate) 3195 #define TYPE_NON_AGGREGATE_CLASS(NODE) \ 3196 (CLASS_TYPE_P (NODE) && CLASSTYPE_NON_AGGREGATE (NODE)) 3197 3198 /* Nonzero if there is a non-trivial X::op=(cv X&) for this class. */ 3199 #define TYPE_HAS_COMPLEX_COPY_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_copy_assign) 3200 3201 /* Nonzero if there is a non-trivial X::X(cv X&) for this class. */ 3202 #define TYPE_HAS_COMPLEX_COPY_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_copy_ctor) 3203 3204 /* Nonzero if there is a non-trivial X::op=(X&&) for this class. */ 3205 #define TYPE_HAS_COMPLEX_MOVE_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_move_assign) 3206 3207 /* Nonzero if there is a non-trivial X::X(X&&) for this class. */ 3208 #define TYPE_HAS_COMPLEX_MOVE_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_move_ctor) 3209 3210 /* Nonzero if there is a non-trivial default constructor for this class. */ 3211 #define TYPE_HAS_COMPLEX_DFLT(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_dflt) 3212 3213 /* Nonzero if TYPE has a trivial destructor. From [class.dtor]: 3214 3215 A destructor is trivial if it is an implicitly declared 3216 destructor and if: 3217 3218 - all of the direct base classes of its class have trivial 3219 destructors, 3220 3221 - for all of the non-static data members of its class that are 3222 of class type (or array thereof), each such class has a 3223 trivial destructor. */ 3224 #define TYPE_HAS_TRIVIAL_DESTRUCTOR(NODE) \ 3225 (!TYPE_HAS_NONTRIVIAL_DESTRUCTOR (NODE)) 3226 3227 /* Nonzero for _TYPE node means that this type does not have a trivial 3228 destructor. Therefore, destroying an object of this type will 3229 involve a call to a destructor. This can apply to objects of 3230 ARRAY_TYPE is the type of the elements needs a destructor. */ 3231 #define TYPE_HAS_NONTRIVIAL_DESTRUCTOR(NODE) \ 3232 (TYPE_LANG_FLAG_4 (NODE)) 3233 3234 /* Nonzero for class type means that the default constructor is trivial. */ 3235 #define TYPE_HAS_TRIVIAL_DFLT(NODE) \ 3236 (TYPE_HAS_DEFAULT_CONSTRUCTOR (NODE) && ! TYPE_HAS_COMPLEX_DFLT (NODE)) 3237 3238 /* Nonzero for class type means that copy initialization of this type can use 3239 a bitwise copy. */ 3240 #define TYPE_HAS_TRIVIAL_COPY_CTOR(NODE) \ 3241 (TYPE_HAS_COPY_CTOR (NODE) && ! TYPE_HAS_COMPLEX_COPY_CTOR (NODE)) 3242 3243 /* Nonzero for class type means that assignment of this type can use 3244 a bitwise copy. */ 3245 #define TYPE_HAS_TRIVIAL_COPY_ASSIGN(NODE) \ 3246 (TYPE_HAS_COPY_ASSIGN (NODE) && ! TYPE_HAS_COMPLEX_COPY_ASSIGN (NODE)) 3247 3248 /* Returns true if NODE is a pointer-to-data-member. */ 3249 #define TYPE_PTRMEM_P(NODE) \ 3250 (TREE_CODE (NODE) == OFFSET_TYPE) 3251 /* Returns true if NODE is a pointer. */ 3252 #define TYPE_PTR_P(NODE) \ 3253 (TREE_CODE (NODE) == POINTER_TYPE) 3254 3255 /* Returns true if NODE is an object type: 3256 3257 [basic.types] 3258 3259 An object type is a (possibly cv-qualified) type that is not a 3260 function type, not a reference type, and not a void type. 3261 3262 Keep these checks in ascending order, for speed. */ 3263 #define TYPE_OBJ_P(NODE) \ 3264 (TREE_CODE (NODE) != REFERENCE_TYPE \ 3265 && TREE_CODE (NODE) != VOID_TYPE \ 3266 && TREE_CODE (NODE) != FUNCTION_TYPE \ 3267 && TREE_CODE (NODE) != METHOD_TYPE) 3268 3269 /* Returns true if NODE is a pointer to an object. Keep these checks 3270 in ascending tree code order. */ 3271 #define TYPE_PTROB_P(NODE) \ 3272 (TYPE_PTR_P (NODE) && TYPE_OBJ_P (TREE_TYPE (NODE))) 3273 3274 /* Returns true if NODE is a reference to an object. Keep these checks 3275 in ascending tree code order. */ 3276 #define TYPE_REF_OBJ_P(NODE) \ 3277 (TREE_CODE (NODE) == REFERENCE_TYPE && TYPE_OBJ_P (TREE_TYPE (NODE))) 3278 3279 /* Returns true if NODE is a pointer to an object, or a pointer to 3280 void. Keep these checks in ascending tree code order. */ 3281 #define TYPE_PTROBV_P(NODE) \ 3282 (TYPE_PTR_P (NODE) \ 3283 && !(TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE \ 3284 || TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE)) 3285 3286 /* Returns true if NODE is a pointer to function. */ 3287 #define TYPE_PTRFN_P(NODE) \ 3288 (TREE_CODE (NODE) == POINTER_TYPE \ 3289 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE) 3290 3291 /* Returns true if NODE is a reference to function. */ 3292 #define TYPE_REFFN_P(NODE) \ 3293 (TREE_CODE (NODE) == REFERENCE_TYPE \ 3294 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE) 3295 3296 /* Nonzero for _TYPE node means that this type is a pointer to member 3297 function type. */ 3298 #define TYPE_PTRMEMFUNC_P(NODE) \ 3299 (TREE_CODE (NODE) == RECORD_TYPE \ 3300 && TYPE_LANG_SPECIFIC (NODE) \ 3301 && TYPE_PTRMEMFUNC_FLAG (NODE)) 3302 3303 #define TYPE_PTRMEMFUNC_FLAG(NODE) \ 3304 (LANG_TYPE_CLASS_CHECK (NODE)->ptrmemfunc_flag) 3305 3306 /* Returns true if NODE is a pointer-to-member. */ 3307 #define TYPE_PTR_TO_MEMBER_P(NODE) \ 3308 (TYPE_PTRMEM_P (NODE) || TYPE_PTRMEMFUNC_P (NODE)) 3309 3310 /* Indicates when overload resolution may resolve to a pointer to 3311 member function. [expr.unary.op]/3 */ 3312 #define PTRMEM_OK_P(NODE) \ 3313 TREE_LANG_FLAG_0 (TREE_CHECK2 ((NODE), ADDR_EXPR, OFFSET_REF)) 3314 3315 /* Get the POINTER_TYPE to the METHOD_TYPE associated with this 3316 pointer to member function. TYPE_PTRMEMFUNC_P _must_ be true, 3317 before using this macro. */ 3318 #define TYPE_PTRMEMFUNC_FN_TYPE(NODE) \ 3319 (TREE_TYPE (TYPE_FIELDS (NODE))) 3320 3321 /* Returns `A' for a type like `int (A::*)(double)' */ 3322 #define TYPE_PTRMEMFUNC_OBJECT_TYPE(NODE) \ 3323 TYPE_METHOD_BASETYPE (TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE))) 3324 3325 /* These are use to manipulate the canonical RECORD_TYPE from the 3326 hashed POINTER_TYPE, and can only be used on the POINTER_TYPE. */ 3327 #define TYPE_GET_PTRMEMFUNC_TYPE(NODE) \ 3328 (TYPE_LANG_SPECIFIC (NODE) ? LANG_TYPE_PTRMEM_CHECK (NODE)->record : NULL) 3329 #define TYPE_SET_PTRMEMFUNC_TYPE(NODE, VALUE) \ 3330 do { \ 3331 if (TYPE_LANG_SPECIFIC (NODE) == NULL) \ 3332 { \ 3333 TYPE_LANG_SPECIFIC (NODE) = ggc_alloc_cleared_lang_type \ 3334 (sizeof (struct lang_type_ptrmem)); \ 3335 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.h.is_lang_type_class = 0; \ 3336 } \ 3337 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.record = (VALUE); \ 3338 } while (0) 3339 3340 /* For a pointer-to-member type of the form `T X::*', this is `X'. 3341 For a type like `void (X::*)() const', this type is `X', not `const 3342 X'. To get at the `const X' you have to look at the 3343 TYPE_PTRMEM_POINTED_TO_TYPE; there, the first parameter will have 3344 type `const X*'. */ 3345 #define TYPE_PTRMEM_CLASS_TYPE(NODE) \ 3346 (TYPE_PTRMEM_P (NODE) \ 3347 ? TYPE_OFFSET_BASETYPE (NODE) \ 3348 : TYPE_PTRMEMFUNC_OBJECT_TYPE (NODE)) 3349 3350 /* For a pointer-to-member type of the form `T X::*', this is `T'. */ 3351 #define TYPE_PTRMEM_POINTED_TO_TYPE(NODE) \ 3352 (TYPE_PTRMEM_P (NODE) \ 3353 ? TREE_TYPE (NODE) \ 3354 : TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE))) 3355 3356 /* For a pointer-to-member constant `X::Y' this is the RECORD_TYPE for 3357 `X'. */ 3358 #define PTRMEM_CST_CLASS(NODE) \ 3359 TYPE_PTRMEM_CLASS_TYPE (TREE_TYPE (PTRMEM_CST_CHECK (NODE))) 3360 3361 /* For a pointer-to-member constant `X::Y' this is the _DECL for 3362 `Y'. */ 3363 #define PTRMEM_CST_MEMBER(NODE) (((ptrmem_cst_t)PTRMEM_CST_CHECK (NODE))->member) 3364 3365 /* The expression in question for a TYPEOF_TYPE. */ 3366 #define TYPEOF_TYPE_EXPR(NODE) (TYPEOF_TYPE_CHECK (NODE))->type.values 3367 3368 /* The expression in question for a DECLTYPE_TYPE. */ 3369 #define DECLTYPE_TYPE_EXPR(NODE) (DECLTYPE_TYPE_CHECK (NODE))->type.values 3370 3371 /* Whether the DECLTYPE_TYPE_EXPR of NODE was originally parsed as an 3372 id-expression or a member-access expression. When false, it was 3373 parsed as a full expression. */ 3374 #define DECLTYPE_TYPE_ID_EXPR_OR_MEMBER_ACCESS_P(NODE) \ 3375 (DECLTYPE_TYPE_CHECK (NODE))->type.string_flag 3376 3377 /* These flags indicate that we want different semantics from normal 3378 decltype: lambda capture just drops references, lambda return also does 3379 type decay. */ 3380 #define DECLTYPE_FOR_LAMBDA_CAPTURE(NODE) \ 3381 TREE_LANG_FLAG_0 (DECLTYPE_TYPE_CHECK (NODE)) 3382 #define DECLTYPE_FOR_LAMBDA_RETURN(NODE) \ 3383 TREE_LANG_FLAG_1 (DECLTYPE_TYPE_CHECK (NODE)) 3384 3385 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `extern' was 3386 specified in its declaration. This can also be set for an 3387 erroneously declared PARM_DECL. */ 3388 #define DECL_THIS_EXTERN(NODE) \ 3389 DECL_LANG_FLAG_2 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE)) 3390 3391 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `static' was 3392 specified in its declaration. This can also be set for an 3393 erroneously declared PARM_DECL. */ 3394 #define DECL_THIS_STATIC(NODE) \ 3395 DECL_LANG_FLAG_6 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE)) 3396 3397 /* Nonzero for FIELD_DECL node means that this field is a base class 3398 of the parent object, as opposed to a member field. */ 3399 #define DECL_FIELD_IS_BASE(NODE) \ 3400 DECL_LANG_FLAG_6 (FIELD_DECL_CHECK (NODE)) 3401 3402 /* Nonzero for FIELD_DECL node means that this field is a simple (no 3403 explicit initializer) lambda capture field, making it invisible to 3404 name lookup in unevaluated contexts. */ 3405 #define DECL_NORMAL_CAPTURE_P(NODE) \ 3406 DECL_LANG_FLAG_7 (FIELD_DECL_CHECK (NODE)) 3407 3408 /* Nonzero if TYPE is an anonymous union or struct type. We have to use a 3409 flag for this because "A union for which objects or pointers are 3410 declared is not an anonymous union" [class.union]. */ 3411 #define ANON_AGGR_TYPE_P(NODE) \ 3412 (CLASS_TYPE_P (NODE) && LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr) 3413 #define SET_ANON_AGGR_TYPE_P(NODE) \ 3414 (LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr = 1) 3415 3416 /* Nonzero if TYPE is an anonymous union type. */ 3417 #define ANON_UNION_TYPE_P(NODE) \ 3418 (TREE_CODE (NODE) == UNION_TYPE && ANON_AGGR_TYPE_P (NODE)) 3419 3420 /* Define fields and accessors for nodes representing declared names. */ 3421 3422 #define TYPE_WAS_ANONYMOUS(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->was_anonymous) 3423 3424 /* C++: all of these are overloaded! These apply only to TYPE_DECLs. */ 3425 3426 /* The format of each node in the DECL_FRIENDLIST is as follows: 3427 3428 The TREE_PURPOSE will be the name of a function, i.e., an 3429 IDENTIFIER_NODE. The TREE_VALUE will be itself a TREE_LIST, whose 3430 TREE_VALUEs are friends with the given name. */ 3431 #define DECL_FRIENDLIST(NODE) (DECL_INITIAL (NODE)) 3432 #define FRIEND_NAME(LIST) (TREE_PURPOSE (LIST)) 3433 #define FRIEND_DECLS(LIST) (TREE_VALUE (LIST)) 3434 3435 /* The DECL_ACCESS, if non-NULL, is a TREE_LIST. The TREE_PURPOSE of 3436 each node is a type; the TREE_VALUE is the access granted for this 3437 DECL in that type. The DECL_ACCESS is set by access declarations. 3438 For example, if a member that would normally be public in a 3439 derived class is made protected, then the derived class and the 3440 protected_access_node will appear in the DECL_ACCESS for the node. */ 3441 #define DECL_ACCESS(NODE) (LANG_DECL_U2_CHECK (NODE, 0)->access) 3442 3443 /* Nonzero if the FUNCTION_DECL is a global constructor. */ 3444 #define DECL_GLOBAL_CTOR_P(NODE) \ 3445 (LANG_DECL_FN_CHECK (NODE)->global_ctor_p) 3446 3447 /* Nonzero if the FUNCTION_DECL is a global destructor. */ 3448 #define DECL_GLOBAL_DTOR_P(NODE) \ 3449 (LANG_DECL_FN_CHECK (NODE)->global_dtor_p) 3450 3451 /* Accessor macros for C++ template decl nodes. */ 3452 3453 /* The DECL_TEMPLATE_PARMS are a list. The TREE_PURPOSE of each node 3454 is a INT_CST whose TREE_INT_CST_LOW indicates the level of the 3455 template parameters, with 1 being the outermost set of template 3456 parameters. The TREE_VALUE is a vector, whose elements are the 3457 template parameters at each level. Each element in the vector is a 3458 TREE_LIST, whose TREE_VALUE is a PARM_DECL (if the parameter is a 3459 non-type parameter), or a TYPE_DECL (if the parameter is a type 3460 parameter). The TREE_PURPOSE is the default value, if any. The 3461 TEMPLATE_PARM_INDEX for the parameter is available as the 3462 DECL_INITIAL (for a PARM_DECL) or as the TREE_TYPE (for a 3463 TYPE_DECL). */ 3464 #define DECL_TEMPLATE_PARMS(NODE) DECL_NON_COMMON_CHECK (NODE)->decl_non_common.arguments 3465 #define DECL_INNERMOST_TEMPLATE_PARMS(NODE) \ 3466 INNERMOST_TEMPLATE_PARMS (DECL_TEMPLATE_PARMS (NODE)) 3467 #define DECL_NTPARMS(NODE) \ 3468 TREE_VEC_LENGTH (DECL_INNERMOST_TEMPLATE_PARMS (NODE)) 3469 /* For function, method, class-data templates. */ 3470 #define DECL_TEMPLATE_RESULT(NODE) DECL_RESULT_FLD (NODE) 3471 /* For a function template at namespace scope, DECL_TEMPLATE_INSTANTIATIONS 3472 lists all instantiations and specializations of the function so that 3473 tsubst_friend_function can reassign them to another template if we find 3474 that the namespace-scope template is really a partial instantiation of a 3475 friend template. 3476 3477 For a class template the DECL_TEMPLATE_INSTANTIATIONS lists holds 3478 all instantiations and specializations of the class type, including 3479 partial instantiations and partial specializations, so that if we 3480 explicitly specialize a partial instantiation we can walk the list 3481 in maybe_process_partial_specialization and reassign them or complain 3482 as appropriate. 3483 3484 In both cases, the TREE_PURPOSE of each node contains the arguments 3485 used; the TREE_VALUE contains the generated variable. The template 3486 arguments are always complete. For example, given: 3487 3488 template <class T> struct S1 { 3489 template <class U> struct S2 {}; 3490 template <class U> struct S2<U*> {}; 3491 }; 3492 3493 the record for the partial specialization will contain, as its 3494 argument list, { {T}, {U*} }, and will be on the 3495 DECL_TEMPLATE_INSTANTIATIONS list for `template <class T> template 3496 <class U> struct S1<T>::S2'. 3497 3498 This list is not used for other templates. */ 3499 #define DECL_TEMPLATE_INSTANTIATIONS(NODE) DECL_VINDEX (NODE) 3500 /* For a class template, this list contains the partial 3501 specializations of this template. (Full specializations are not 3502 recorded on this list.) The TREE_PURPOSE holds the arguments used 3503 in the partial specialization (e.g., for `template <class T> struct 3504 S<T*, int>' this will be `T*'.) The arguments will also include 3505 any outer template arguments. The TREE_VALUE holds the innermost 3506 template parameters for the specialization (e.g., `T' in the 3507 example above.) The TREE_TYPE is the _TYPE node for the partial 3508 specialization. 3509 3510 This list is not used for other templates. */ 3511 #define DECL_TEMPLATE_SPECIALIZATIONS(NODE) DECL_SIZE (NODE) 3512 3513 /* Nonzero for a DECL which is actually a template parameter. Keep 3514 these checks in ascending tree code order. */ 3515 #define DECL_TEMPLATE_PARM_P(NODE) \ 3516 (DECL_LANG_FLAG_0 (NODE) \ 3517 && (TREE_CODE (NODE) == CONST_DECL \ 3518 || TREE_CODE (NODE) == PARM_DECL \ 3519 || TREE_CODE (NODE) == TYPE_DECL \ 3520 || TREE_CODE (NODE) == TEMPLATE_DECL)) 3521 3522 /* Mark NODE as a template parameter. */ 3523 #define SET_DECL_TEMPLATE_PARM_P(NODE) \ 3524 (DECL_LANG_FLAG_0 (NODE) = 1) 3525 3526 /* Nonzero if NODE is a template template parameter. */ 3527 #define DECL_TEMPLATE_TEMPLATE_PARM_P(NODE) \ 3528 (TREE_CODE (NODE) == TEMPLATE_DECL && DECL_TEMPLATE_PARM_P (NODE)) 3529 3530 /* Nonzero if NODE is a TEMPLATE_DECL representing an 3531 UNBOUND_CLASS_TEMPLATE tree node. */ 3532 #define DECL_UNBOUND_CLASS_TEMPLATE_P(NODE) \ 3533 (TREE_CODE (NODE) == TEMPLATE_DECL && !DECL_TEMPLATE_RESULT (NODE)) 3534 3535 #define DECL_FUNCTION_TEMPLATE_P(NODE) \ 3536 (TREE_CODE (NODE) == TEMPLATE_DECL \ 3537 && !DECL_UNBOUND_CLASS_TEMPLATE_P (NODE) \ 3538 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == FUNCTION_DECL) 3539 3540 /* Nonzero for a DECL that represents a template class. */ 3541 #define DECL_CLASS_TEMPLATE_P(NODE) \ 3542 (TREE_CODE (NODE) == TEMPLATE_DECL \ 3543 && DECL_TEMPLATE_RESULT (NODE) != NULL_TREE \ 3544 && DECL_IMPLICIT_TYPEDEF_P (DECL_TEMPLATE_RESULT (NODE))) 3545 3546 /* Nonzero if NODE which declares a type. */ 3547 #define DECL_DECLARES_TYPE_P(NODE) \ 3548 (TREE_CODE (NODE) == TYPE_DECL || DECL_CLASS_TEMPLATE_P (NODE)) 3549 3550 /* Nonzero if NODE declares a function. */ 3551 #define DECL_DECLARES_FUNCTION_P(NODE) \ 3552 (TREE_CODE (NODE) == FUNCTION_DECL || DECL_FUNCTION_TEMPLATE_P (NODE)) 3553 3554 /* Nonzero if NODE is the typedef implicitly generated for a type when 3555 the type is declared. In C++, `struct S {};' is roughly 3556 equivalent to `struct S {}; typedef struct S S;' in C. 3557 DECL_IMPLICIT_TYPEDEF_P will hold for the typedef indicated in this 3558 example. In C++, there is a second implicit typedef for each 3559 class, in the scope of `S' itself, so that you can say `S::S'. 3560 DECL_SELF_REFERENCE_P will hold for that second typedef. */ 3561 #define DECL_IMPLICIT_TYPEDEF_P(NODE) \ 3562 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_2 (NODE)) 3563 #define SET_DECL_IMPLICIT_TYPEDEF_P(NODE) \ 3564 (DECL_LANG_FLAG_2 (NODE) = 1) 3565 #define DECL_SELF_REFERENCE_P(NODE) \ 3566 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_4 (NODE)) 3567 #define SET_DECL_SELF_REFERENCE_P(NODE) \ 3568 (DECL_LANG_FLAG_4 (NODE) = 1) 3569 3570 /* A `primary' template is one that has its own template header. A 3571 member function of a class template is a template, but not primary. 3572 A member template is primary. Friend templates are primary, too. */ 3573 3574 /* Returns the primary template corresponding to these parameters. */ 3575 #define DECL_PRIMARY_TEMPLATE(NODE) \ 3576 (TREE_TYPE (DECL_INNERMOST_TEMPLATE_PARMS (NODE))) 3577 3578 /* Returns nonzero if NODE is a primary template. */ 3579 #define PRIMARY_TEMPLATE_P(NODE) (DECL_PRIMARY_TEMPLATE (NODE) == (NODE)) 3580 3581 /* Nonzero iff NODE is a specialization of a template. The value 3582 indicates the type of specializations: 3583 3584 1=implicit instantiation 3585 3586 2=partial or explicit specialization, e.g.: 3587 3588 template <> int min<int> (int, int), 3589 3590 3=explicit instantiation, e.g.: 3591 3592 template int min<int> (int, int); 3593 3594 Note that NODE will be marked as a specialization even if the 3595 template it is instantiating is not a primary template. For 3596 example, given: 3597 3598 template <typename T> struct O { 3599 void f(); 3600 struct I {}; 3601 }; 3602 3603 both O<int>::f and O<int>::I will be marked as instantiations. 3604 3605 If DECL_USE_TEMPLATE is nonzero, then DECL_TEMPLATE_INFO will also 3606 be non-NULL. */ 3607 #define DECL_USE_TEMPLATE(NODE) (DECL_LANG_SPECIFIC (NODE)->u.base.use_template) 3608 3609 /* Like DECL_USE_TEMPLATE, but for class types. */ 3610 #define CLASSTYPE_USE_TEMPLATE(NODE) \ 3611 (LANG_TYPE_CLASS_CHECK (NODE)->use_template) 3612 3613 /* True if NODE is a specialization of a primary template. */ 3614 #define CLASSTYPE_SPECIALIZATION_OF_PRIMARY_TEMPLATE_P(NODE) \ 3615 (CLASS_TYPE_P (NODE) \ 3616 && CLASSTYPE_USE_TEMPLATE (NODE) \ 3617 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE))) 3618 3619 #define DECL_TEMPLATE_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) & 1) 3620 #define CLASSTYPE_TEMPLATE_INSTANTIATION(NODE) \ 3621 (CLASSTYPE_USE_TEMPLATE (NODE) & 1) 3622 3623 #define DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) == 2) 3624 #define SET_DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) = 2) 3625 3626 /* Returns true for an explicit or partial specialization of a class 3627 template. */ 3628 #define CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \ 3629 (CLASSTYPE_USE_TEMPLATE (NODE) == 2) 3630 #define SET_CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \ 3631 (CLASSTYPE_USE_TEMPLATE (NODE) = 2) 3632 3633 #define DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 1) 3634 #define SET_DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 1) 3635 #define CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \ 3636 (CLASSTYPE_USE_TEMPLATE (NODE) == 1) 3637 #define SET_CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \ 3638 (CLASSTYPE_USE_TEMPLATE (NODE) = 1) 3639 3640 #define DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 3) 3641 #define SET_DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 3) 3642 #define CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \ 3643 (CLASSTYPE_USE_TEMPLATE (NODE) == 3) 3644 #define SET_CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \ 3645 (CLASSTYPE_USE_TEMPLATE (NODE) = 3) 3646 3647 /* Nonzero if DECL is a friend function which is an instantiation 3648 from the point of view of the compiler, but not from the point of 3649 view of the language. For example given: 3650 template <class T> struct S { friend void f(T) {}; }; 3651 the declaration of `void f(int)' generated when S<int> is 3652 instantiated will not be a DECL_TEMPLATE_INSTANTIATION, but will be 3653 a DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION. */ 3654 #define DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION(DECL) \ 3655 (DECL_TEMPLATE_INFO (DECL) && !DECL_USE_TEMPLATE (DECL)) 3656 3657 /* Nonzero iff we are currently processing a declaration for an 3658 entity with its own template parameter list, and which is not a 3659 full specialization. */ 3660 #define PROCESSING_REAL_TEMPLATE_DECL_P() \ 3661 (processing_template_decl > template_class_depth (current_scope ())) 3662 3663 /* Nonzero if this VAR_DECL or FUNCTION_DECL has already been 3664 instantiated, i.e. its definition has been generated from the 3665 pattern given in the template. */ 3666 #define DECL_TEMPLATE_INSTANTIATED(NODE) \ 3667 DECL_LANG_FLAG_1 (VAR_OR_FUNCTION_DECL_CHECK (NODE)) 3668 3669 /* We know what we're doing with this decl now. */ 3670 #define DECL_INTERFACE_KNOWN(NODE) DECL_LANG_FLAG_5 (NODE) 3671 3672 /* DECL_EXTERNAL must be set on a decl until the decl is actually emitted, 3673 so that assemble_external will work properly. So we have this flag to 3674 tell us whether the decl is really not external. 3675 3676 This flag does not indicate whether or not the decl is defined in the 3677 current translation unit; it indicates whether or not we should emit the 3678 decl at the end of compilation if it is defined and needed. */ 3679 #define DECL_NOT_REALLY_EXTERN(NODE) \ 3680 (DECL_LANG_SPECIFIC (NODE)->u.base.not_really_extern) 3681 3682 #define DECL_REALLY_EXTERN(NODE) \ 3683 (DECL_EXTERNAL (NODE) && ! DECL_NOT_REALLY_EXTERN (NODE)) 3684 3685 /* A thunk is a stub function. 3686 3687 A thunk is an alternate entry point for an ordinary FUNCTION_DECL. 3688 The address of the ordinary FUNCTION_DECL is given by the 3689 DECL_INITIAL, which is always an ADDR_EXPR whose operand is a 3690 FUNCTION_DECL. The job of the thunk is to either adjust the this 3691 pointer before transferring control to the FUNCTION_DECL, or call 3692 FUNCTION_DECL and then adjust the result value. Note, the result 3693 pointer adjusting thunk must perform a call to the thunked 3694 function, (or be implemented via passing some invisible parameter 3695 to the thunked function, which is modified to perform the 3696 adjustment just before returning). 3697 3698 A thunk may perform either, or both, of the following operations: 3699 3700 o Adjust the this or result pointer by a constant offset. 3701 o Adjust the this or result pointer by looking up a vcall or vbase offset 3702 in the vtable. 3703 3704 A this pointer adjusting thunk converts from a base to a derived 3705 class, and hence adds the offsets. A result pointer adjusting thunk 3706 converts from a derived class to a base, and hence subtracts the 3707 offsets. If both operations are performed, then the constant 3708 adjustment is performed first for this pointer adjustment and last 3709 for the result pointer adjustment. 3710 3711 The constant adjustment is given by THUNK_FIXED_OFFSET. If the 3712 vcall or vbase offset is required, THUNK_VIRTUAL_OFFSET is 3713 used. For this pointer adjusting thunks, it is the vcall offset 3714 into the vtable. For result pointer adjusting thunks it is the 3715 binfo of the virtual base to convert to. Use that binfo's vbase 3716 offset. 3717 3718 It is possible to have equivalent covariant thunks. These are 3719 distinct virtual covariant thunks whose vbase offsets happen to 3720 have the same value. THUNK_ALIAS is used to pick one as the 3721 canonical thunk, which will get all the this pointer adjusting 3722 thunks attached to it. */ 3723 3724 /* An integer indicating how many bytes should be subtracted from the 3725 this or result pointer when this function is called. */ 3726 #define THUNK_FIXED_OFFSET(DECL) \ 3727 (DECL_LANG_SPECIFIC (THUNK_FUNCTION_CHECK (DECL))->u.fn.u5.fixed_offset) 3728 3729 /* A tree indicating how to perform the virtual adjustment. For a this 3730 adjusting thunk it is the number of bytes to be added to the vtable 3731 to find the vcall offset. For a result adjusting thunk, it is the 3732 binfo of the relevant virtual base. If NULL, then there is no 3733 virtual adjust. (The vptr is always located at offset zero from 3734 the this or result pointer.) (If the covariant type is within the 3735 class hierarchy being laid out, the vbase index is not yet known 3736 at the point we need to create the thunks, hence the need to use 3737 binfos.) */ 3738 3739 #define THUNK_VIRTUAL_OFFSET(DECL) \ 3740 (LANG_DECL_U2_CHECK (FUNCTION_DECL_CHECK (DECL), 0)->access) 3741 3742 /* A thunk which is equivalent to another thunk. */ 3743 #define THUNK_ALIAS(DECL) \ 3744 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->u.min.template_info) 3745 3746 /* For thunk NODE, this is the FUNCTION_DECL thunked to. It is 3747 possible for the target to be a thunk too. */ 3748 #define THUNK_TARGET(NODE) \ 3749 (LANG_DECL_FN_CHECK (NODE)->befriending_classes) 3750 3751 /* True for a SCOPE_REF iff the "template" keyword was used to 3752 indicate that the qualified name denotes a template. */ 3753 #define QUALIFIED_NAME_IS_TEMPLATE(NODE) \ 3754 (TREE_LANG_FLAG_0 (SCOPE_REF_CHECK (NODE))) 3755 3756 /* True for an OMP_ATOMIC that has dependent parameters. These are stored 3757 as an expr in operand 1, and integer_zero_node in operand 0. */ 3758 #define OMP_ATOMIC_DEPENDENT_P(NODE) \ 3759 (TREE_CODE (TREE_OPERAND (OMP_ATOMIC_CHECK (NODE), 0)) == INTEGER_CST) 3760 3761 /* Used while gimplifying continue statements bound to OMP_FOR nodes. */ 3762 #define OMP_FOR_GIMPLIFYING_P(NODE) \ 3763 (TREE_LANG_FLAG_0 (OMP_FOR_CHECK (NODE))) 3764 3765 /* A language-specific token attached to the OpenMP data clauses to 3766 hold code (or code fragments) related to ctors, dtors, and op=. 3767 See semantics.c for details. */ 3768 #define CP_OMP_CLAUSE_INFO(NODE) \ 3769 TREE_TYPE (OMP_CLAUSE_RANGE_CHECK (NODE, OMP_CLAUSE_PRIVATE, \ 3770 OMP_CLAUSE_COPYPRIVATE)) 3771 3772 /* These macros provide convenient access to the various _STMT nodes 3773 created when parsing template declarations. */ 3774 #define TRY_STMTS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 0) 3775 #define TRY_HANDLERS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 1) 3776 3777 #define EH_SPEC_STMTS(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 0) 3778 #define EH_SPEC_RAISES(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 1) 3779 3780 #define USING_STMT_NAMESPACE(NODE) TREE_OPERAND (USING_STMT_CHECK (NODE), 0) 3781 3782 /* Nonzero if this try block is a function try block. */ 3783 #define FN_TRY_BLOCK_P(NODE) TREE_LANG_FLAG_3 (TRY_BLOCK_CHECK (NODE)) 3784 #define HANDLER_PARMS(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 0) 3785 #define HANDLER_BODY(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 1) 3786 #define HANDLER_TYPE(NODE) TREE_TYPE (HANDLER_CHECK (NODE)) 3787 3788 /* CLEANUP_STMT accessors. The statement(s) covered, the cleanup to run 3789 and the VAR_DECL for which this cleanup exists. */ 3790 #define CLEANUP_BODY(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 0) 3791 #define CLEANUP_EXPR(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 1) 3792 #define CLEANUP_DECL(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 2) 3793 3794 /* IF_STMT accessors. These give access to the condition of the if 3795 statement, the then block of the if statement, and the else block 3796 of the if statement if it exists. */ 3797 #define IF_COND(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 0) 3798 #define THEN_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 1) 3799 #define ELSE_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 2) 3800 3801 /* WHILE_STMT accessors. These give access to the condition of the 3802 while statement and the body of the while statement, respectively. */ 3803 #define WHILE_COND(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 0) 3804 #define WHILE_BODY(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 1) 3805 3806 /* DO_STMT accessors. These give access to the condition of the do 3807 statement and the body of the do statement, respectively. */ 3808 #define DO_COND(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 0) 3809 #define DO_BODY(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 1) 3810 3811 /* FOR_STMT accessors. These give access to the init statement, 3812 condition, update expression, and body of the for statement, 3813 respectively. */ 3814 #define FOR_INIT_STMT(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 0) 3815 #define FOR_COND(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 1) 3816 #define FOR_EXPR(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 2) 3817 #define FOR_BODY(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 3) 3818 3819 /* RANGE_FOR_STMT accessors. These give access to the declarator, 3820 expression and body of the statement, respectively. */ 3821 #define RANGE_FOR_DECL(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 0) 3822 #define RANGE_FOR_EXPR(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 1) 3823 #define RANGE_FOR_BODY(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 2) 3824 3825 #define SWITCH_STMT_COND(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 0) 3826 #define SWITCH_STMT_BODY(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 1) 3827 #define SWITCH_STMT_TYPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 2) 3828 3829 /* STMT_EXPR accessor. */ 3830 #define STMT_EXPR_STMT(NODE) TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0) 3831 3832 /* EXPR_STMT accessor. This gives the expression associated with an 3833 expression statement. */ 3834 #define EXPR_STMT_EXPR(NODE) TREE_OPERAND (EXPR_STMT_CHECK (NODE), 0) 3835 3836 /* True if this TARGET_EXPR was created by build_cplus_new, and so we can 3837 discard it if it isn't useful. */ 3838 #define TARGET_EXPR_IMPLICIT_P(NODE) \ 3839 TREE_LANG_FLAG_0 (TARGET_EXPR_CHECK (NODE)) 3840 3841 /* True if this TARGET_EXPR is the result of list-initialization of a 3842 temporary. */ 3843 #define TARGET_EXPR_LIST_INIT_P(NODE) \ 3844 TREE_LANG_FLAG_1 (TARGET_EXPR_CHECK (NODE)) 3845 3846 /* True if this TARGET_EXPR expresses direct-initialization of an object 3847 to be named later. */ 3848 #define TARGET_EXPR_DIRECT_INIT_P(NODE) \ 3849 TREE_LANG_FLAG_2 (TARGET_EXPR_CHECK (NODE)) 3850 3851 /* True if EXPR expresses direct-initialization of a TYPE. */ 3852 #define DIRECT_INIT_EXPR_P(TYPE,EXPR) \ 3853 (TREE_CODE (EXPR) == TARGET_EXPR && TREE_LANG_FLAG_2 (EXPR) \ 3854 && same_type_ignoring_top_level_qualifiers_p (TYPE, TREE_TYPE (EXPR))) 3855 3856 /* An enumeration of the kind of tags that C++ accepts. */ 3857 enum tag_types { 3858 none_type = 0, /* Not a tag type. */ 3859 record_type, /* "struct" types. */ 3860 class_type, /* "class" types. */ 3861 union_type, /* "union" types. */ 3862 enum_type, /* "enum" types. */ 3863 typename_type /* "typename" types. */ 3864 }; 3865 3866 /* The various kinds of lvalues we distinguish. */ 3867 enum cp_lvalue_kind_flags { 3868 clk_none = 0, /* Things that are not an lvalue. */ 3869 clk_ordinary = 1, /* An ordinary lvalue. */ 3870 clk_rvalueref = 2,/* An rvalue formed using an rvalue reference */ 3871 clk_class = 4, /* An rvalue of class-type. */ 3872 clk_bitfield = 8, /* An lvalue for a bit-field. */ 3873 clk_packed = 16 /* An lvalue for a packed field. */ 3874 }; 3875 3876 /* This type is used for parameters and variables which hold 3877 combinations of the flags in enum cp_lvalue_kind_flags. */ 3878 typedef int cp_lvalue_kind; 3879 3880 /* Various kinds of template specialization, instantiation, etc. */ 3881 typedef enum tmpl_spec_kind { 3882 tsk_none, /* Not a template at all. */ 3883 tsk_invalid_member_spec, /* An explicit member template 3884 specialization, but the enclosing 3885 classes have not all been explicitly 3886 specialized. */ 3887 tsk_invalid_expl_inst, /* An explicit instantiation containing 3888 template parameter lists. */ 3889 tsk_excessive_parms, /* A template declaration with too many 3890 template parameter lists. */ 3891 tsk_insufficient_parms, /* A template declaration with too few 3892 parameter lists. */ 3893 tsk_template, /* A template declaration. */ 3894 tsk_expl_spec, /* An explicit specialization. */ 3895 tsk_expl_inst /* An explicit instantiation. */ 3896 } tmpl_spec_kind; 3897 3898 /* The various kinds of access. BINFO_ACCESS depends on these being 3899 two bit quantities. The numerical values are important; they are 3900 used to initialize RTTI data structures, so changing them changes 3901 the ABI. */ 3902 typedef enum access_kind { 3903 ak_none = 0, /* Inaccessible. */ 3904 ak_public = 1, /* Accessible, as a `public' thing. */ 3905 ak_protected = 2, /* Accessible, as a `protected' thing. */ 3906 ak_private = 3 /* Accessible, as a `private' thing. */ 3907 } access_kind; 3908 3909 /* The various kinds of special functions. If you add to this list, 3910 you should update special_function_p as well. */ 3911 typedef enum special_function_kind { 3912 sfk_none = 0, /* Not a special function. This enumeral 3913 must have value zero; see 3914 special_function_p. */ 3915 sfk_constructor, /* A constructor. */ 3916 sfk_copy_constructor, /* A copy constructor. */ 3917 sfk_move_constructor, /* A move constructor. */ 3918 sfk_copy_assignment, /* A copy assignment operator. */ 3919 sfk_move_assignment, /* A move assignment operator. */ 3920 sfk_destructor, /* A destructor. */ 3921 sfk_complete_destructor, /* A destructor for complete objects. */ 3922 sfk_base_destructor, /* A destructor for base subobjects. */ 3923 sfk_deleting_destructor, /* A destructor for complete objects that 3924 deletes the object after it has been 3925 destroyed. */ 3926 sfk_conversion /* A conversion operator. */ 3927 } special_function_kind; 3928 3929 /* The various kinds of linkage. From [basic.link], 3930 3931 A name is said to have linkage when it might denote the same 3932 object, reference, function, type, template, namespace or value 3933 as a name introduced in another scope: 3934 3935 -- When a name has external linkage, the entity it denotes can 3936 be referred to from scopes of other translation units or from 3937 other scopes of the same translation unit. 3938 3939 -- When a name has internal linkage, the entity it denotes can 3940 be referred to by names from other scopes in the same 3941 translation unit. 3942 3943 -- When a name has no linkage, the entity it denotes cannot be 3944 referred to by names from other scopes. */ 3945 3946 typedef enum linkage_kind { 3947 lk_none, /* No linkage. */ 3948 lk_internal, /* Internal linkage. */ 3949 lk_external /* External linkage. */ 3950 } linkage_kind; 3951 3952 typedef enum duration_kind { 3953 dk_static, 3954 dk_thread, 3955 dk_auto, 3956 dk_dynamic 3957 } duration_kind; 3958 3959 /* Bitmask flags to control type substitution. */ 3960 enum tsubst_flags { 3961 tf_none = 0, /* nothing special */ 3962 tf_error = 1 << 0, /* give error messages */ 3963 tf_warning = 1 << 1, /* give warnings too */ 3964 tf_ignore_bad_quals = 1 << 2, /* ignore bad cvr qualifiers */ 3965 tf_keep_type_decl = 1 << 3, /* retain typedef type decls 3966 (make_typename_type use) */ 3967 tf_ptrmem_ok = 1 << 4, /* pointers to member ok (internal 3968 instantiate_type use) */ 3969 tf_user = 1 << 5, /* found template must be a user template 3970 (lookup_template_class use) */ 3971 tf_conv = 1 << 6, /* We are determining what kind of 3972 conversion might be permissible, 3973 not actually performing the 3974 conversion. */ 3975 tf_no_access_control = 1 << 7, /* Do not perform access checks, even 3976 when issuing other errors. */ 3977 /* Convenient substitution flags combinations. */ 3978 tf_warning_or_error = tf_warning | tf_error 3979 }; 3980 3981 /* This type is used for parameters and variables which hold 3982 combinations of the flags in enum tsubst_flags. */ 3983 typedef int tsubst_flags_t; 3984 3985 /* The kind of checking we can do looking in a class hierarchy. */ 3986 enum base_access_flags { 3987 ba_any = 0, /* Do not check access, allow an ambiguous base, 3988 prefer a non-virtual base */ 3989 ba_unique = 1 << 0, /* Must be a unique base. */ 3990 ba_check_bit = 1 << 1, /* Check access. */ 3991 ba_check = ba_unique | ba_check_bit, 3992 ba_ignore_scope = 1 << 2, /* Ignore access allowed by local scope. */ 3993 ba_quiet = 1 << 3 /* Do not issue error messages. */ 3994 }; 3995 3996 /* This type is used for parameters and variables which hold 3997 combinations of the flags in enum base_access_flags. */ 3998 typedef int base_access; 3999 4000 /* The various kinds of access check during parsing. */ 4001 typedef enum deferring_kind { 4002 dk_no_deferred = 0, /* Check access immediately */ 4003 dk_deferred = 1, /* Deferred check */ 4004 dk_no_check = 2 /* No access check */ 4005 } deferring_kind; 4006 4007 /* The kind of base we can find, looking in a class hierarchy. 4008 Values <0 indicate we failed. */ 4009 typedef enum base_kind { 4010 bk_inaccessible = -3, /* The base is inaccessible */ 4011 bk_ambig = -2, /* The base is ambiguous */ 4012 bk_not_base = -1, /* It is not a base */ 4013 bk_same_type = 0, /* It is the same type */ 4014 bk_proper_base = 1, /* It is a proper base */ 4015 bk_via_virtual = 2 /* It is a proper base, but via a virtual 4016 path. This might not be the canonical 4017 binfo. */ 4018 } base_kind; 4019 4020 /* Node for "pointer to (virtual) function". 4021 This may be distinct from ptr_type_node so gdb can distinguish them. */ 4022 #define vfunc_ptr_type_node vtable_entry_type 4023 4024 4025 /* For building calls to `delete'. */ 4026 extern GTY(()) tree integer_two_node; 4027 4028 /* The number of function bodies which we are currently processing. 4029 (Zero if we are at namespace scope, one inside the body of a 4030 function, two inside the body of a function in a local class, etc.) */ 4031 extern int function_depth; 4032 4033 /* In parser.c. */ 4034 4035 /* Nonzero if we are parsing an unevaluated operand: an operand to 4036 sizeof, typeof, or alignof. This is a count since operands to 4037 sizeof can be nested. */ 4038 4039 extern int cp_unevaluated_operand; 4040 extern tree cp_convert_range_for (tree, tree, tree); 4041 4042 /* in pt.c */ 4043 4044 /* These values are used for the `STRICT' parameter to type_unification and 4045 fn_type_unification. Their meanings are described with the 4046 documentation for fn_type_unification. */ 4047 4048 typedef enum unification_kind_t { 4049 DEDUCE_CALL, 4050 DEDUCE_CONV, 4051 DEDUCE_EXACT 4052 } unification_kind_t; 4053 4054 /* in class.c */ 4055 4056 extern int current_class_depth; 4057 4058 /* An array of all local classes present in this translation unit, in 4059 declaration order. */ 4060 extern GTY(()) VEC(tree,gc) *local_classes; 4061 4062 /* Here's where we control how name mangling takes place. */ 4064 4065 /* Cannot use '$' up front, because this confuses gdb 4066 (names beginning with '$' are gdb-local identifiers). 4067 4068 Note that all forms in which the '$' is significant are long enough 4069 for direct indexing (meaning that if we know there is a '$' 4070 at a particular location, we can index into the string at 4071 any other location that provides distinguishing characters). */ 4072 4073 /* Define NO_DOT_IN_LABEL in your favorite tm file if your assembler 4074 doesn't allow '.' in symbol names. */ 4075 #ifndef NO_DOT_IN_LABEL 4076 4077 #define JOINER '.' 4078 4079 #define AUTO_TEMP_NAME "_.tmp_" 4080 #define VFIELD_BASE ".vf" 4081 #define VFIELD_NAME "_vptr." 4082 #define VFIELD_NAME_FORMAT "_vptr.%s" 4083 4084 #define ANON_AGGRNAME_FORMAT "._%d" 4085 4086 #else /* NO_DOT_IN_LABEL */ 4087 4088 #ifndef NO_DOLLAR_IN_LABEL 4089 4090 #define JOINER '$' 4091 4092 #define AUTO_TEMP_NAME "_$tmp_" 4093 #define VFIELD_BASE "$vf" 4094 #define VFIELD_NAME "_vptr$" 4095 #define VFIELD_NAME_FORMAT "_vptr$%s" 4096 #define ANON_AGGRNAME_FORMAT "$_%d" 4097 4098 #else /* NO_DOLLAR_IN_LABEL */ 4099 4100 #define IN_CHARGE_NAME "__in_chrg" 4101 #define AUTO_TEMP_NAME "__tmp_" 4102 #define TEMP_NAME_P(ID_NODE) \ 4103 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, \ 4104 sizeof (AUTO_TEMP_NAME) - 1)) 4105 #define VTABLE_NAME "__vt_" 4106 #define VTABLE_NAME_P(ID_NODE) \ 4107 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VTABLE_NAME, \ 4108 sizeof (VTABLE_NAME) - 1)) 4109 #define VFIELD_BASE "__vfb" 4110 #define VFIELD_NAME "__vptr_" 4111 #define VFIELD_NAME_P(ID_NODE) \ 4112 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, \ 4113 sizeof (VFIELD_NAME) - 1)) 4114 #define VFIELD_NAME_FORMAT "__vptr_%s" 4115 4116 #define ANON_AGGRNAME_PREFIX "__anon_" 4117 #define ANON_AGGRNAME_P(ID_NODE) \ 4118 (!strncmp (IDENTIFIER_POINTER (ID_NODE), ANON_AGGRNAME_PREFIX, \ 4119 sizeof (ANON_AGGRNAME_PREFIX) - 1)) 4120 #define ANON_AGGRNAME_FORMAT "__anon_%d" 4121 4122 #endif /* NO_DOLLAR_IN_LABEL */ 4123 #endif /* NO_DOT_IN_LABEL */ 4124 4125 #define THIS_NAME "this" 4126 4127 #define IN_CHARGE_NAME "__in_chrg" 4128 4129 #define VTBL_PTR_TYPE "__vtbl_ptr_type" 4130 #define VTABLE_DELTA_NAME "__delta" 4131 #define VTABLE_PFN_NAME "__pfn" 4132 4133 #define LAMBDANAME_PREFIX "__lambda" 4134 #define LAMBDANAME_FORMAT LAMBDANAME_PREFIX "%d" 4135 #define LAMBDANAME_P(ID_NODE) \ 4136 (!strncmp (IDENTIFIER_POINTER (ID_NODE), \ 4137 LAMBDANAME_PREFIX, \ 4138 sizeof (LAMBDANAME_PREFIX) - 1)) 4139 4140 #if !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) 4141 4142 #define VTABLE_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == 'v' \ 4143 && IDENTIFIER_POINTER (ID_NODE)[2] == 't' \ 4144 && IDENTIFIER_POINTER (ID_NODE)[3] == JOINER) 4145 4146 #define TEMP_NAME_P(ID_NODE) \ 4147 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, sizeof (AUTO_TEMP_NAME)-1)) 4148 #define VFIELD_NAME_P(ID_NODE) \ 4149 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, sizeof(VFIELD_NAME)-1)) 4150 4151 /* For anonymous aggregate types, we need some sort of name to 4152 hold on to. In practice, this should not appear, but it should 4153 not be harmful if it does. */ 4154 #define ANON_AGGRNAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[0] == JOINER \ 4155 && IDENTIFIER_POINTER (ID_NODE)[1] == '_') 4156 #endif /* !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) */ 4157 4158 4159 /* Nonzero if we're done parsing and into end-of-file activities. */ 4161 4162 extern int at_eof; 4163 4164 /* A list of namespace-scope objects which have constructors or 4165 destructors which reside in the global scope. The decl is stored 4166 in the TREE_VALUE slot and the initializer is stored in the 4167 TREE_PURPOSE slot. */ 4168 extern GTY(()) tree static_aggregates; 4169 4170 enum overload_flags { NO_SPECIAL = 0, DTOR_FLAG, TYPENAME_FLAG }; 4171 4172 /* These are uses as bits in flags passed to various functions to 4173 control their behavior. Despite the LOOKUP_ prefix, many of these 4174 do not control name lookup. ??? Functions using these flags should 4175 probably be modified to accept explicit boolean flags for the 4176 behaviors relevant to them. */ 4177 /* Check for access violations. */ 4178 #define LOOKUP_PROTECT (1 << 0) 4179 /* Complain if no suitable member function matching the arguments is 4180 found. */ 4181 #define LOOKUP_COMPLAIN (1 << 1) 4182 #define LOOKUP_NORMAL (LOOKUP_PROTECT | LOOKUP_COMPLAIN) 4183 /* Even if the function found by lookup is a virtual function, it 4184 should be called directly. */ 4185 #define LOOKUP_NONVIRTUAL (1 << 2) 4186 /* Non-converting (i.e., "explicit") constructors are not tried. This flag 4187 indicates that we are not performing direct-initialization. */ 4188 #define LOOKUP_ONLYCONVERTING (1 << 3) 4189 #define LOOKUP_IMPLICIT (LOOKUP_NORMAL | LOOKUP_ONLYCONVERTING) 4190 /* If a temporary is created, it should be created so that it lives 4191 as long as the current variable bindings; otherwise it only lives 4192 until the end of the complete-expression. It also forces 4193 direct-initialization in cases where other parts of the compiler 4194 have already generated a temporary, such as reference 4195 initialization and the catch parameter. */ 4196 #define DIRECT_BIND (1 << 4) 4197 /* We're performing a user-defined conversion, so more user-defined 4198 conversions are not permitted (only built-in conversions). */ 4199 #define LOOKUP_NO_CONVERSION (1 << 5) 4200 /* The user has explicitly called a destructor. (Therefore, we do 4201 not need to check that the object is non-NULL before calling the 4202 destructor.) */ 4203 #define LOOKUP_DESTRUCTOR (1 << 6) 4204 /* Do not permit references to bind to temporaries. */ 4205 #define LOOKUP_NO_TEMP_BIND (1 << 7) 4206 /* Do not accept objects, and possibly namespaces. */ 4207 #define LOOKUP_PREFER_TYPES (1 << 8) 4208 /* Do not accept objects, and possibly types. */ 4209 #define LOOKUP_PREFER_NAMESPACES (1 << 9) 4210 /* Accept types or namespaces. */ 4211 #define LOOKUP_PREFER_BOTH (LOOKUP_PREFER_TYPES | LOOKUP_PREFER_NAMESPACES) 4212 /* Return friend declarations and un-declared builtin functions. 4213 (Normally, these entities are registered in the symbol table, but 4214 not found by lookup.) */ 4215 #define LOOKUP_HIDDEN (LOOKUP_PREFER_NAMESPACES << 1) 4216 /* Prefer that the lvalue be treated as an rvalue. */ 4217 #define LOOKUP_PREFER_RVALUE (LOOKUP_HIDDEN << 1) 4218 /* We're inside an init-list, so narrowing conversions are ill-formed. */ 4219 #define LOOKUP_NO_NARROWING (LOOKUP_PREFER_RVALUE << 1) 4220 /* Avoid user-defined conversions for the first parameter of a copy 4221 constructor (or move constructor). */ 4222 #define LOOKUP_NO_COPY_CTOR_CONVERSION (LOOKUP_NO_NARROWING << 1) 4223 /* This is the first parameter of a copy constructor. */ 4224 #define LOOKUP_COPY_PARM (LOOKUP_NO_COPY_CTOR_CONVERSION << 1) 4225 /* We only want to consider list constructors. */ 4226 #define LOOKUP_LIST_ONLY (LOOKUP_COPY_PARM << 1) 4227 /* Return after determining which function to call and checking access. 4228 Used by sythesized_method_walk to determine which functions will 4229 be called to initialize subobjects, in order to determine exception 4230 specification and possible implicit delete. 4231 This is kind of a hack, but since access control doesn't respect SFINAE 4232 we can't just use tf_none to avoid access control errors, we need 4233 another mechanism. Exiting early also avoids problems with trying 4234 to perform argument conversions when the class isn't complete yet. */ 4235 #define LOOKUP_SPECULATIVE (LOOKUP_LIST_ONLY << 1) 4236 /* Used by calls from defaulted functions to limit the overload set to avoid 4237 cycles trying to declare them (core issue 1092). */ 4238 #define LOOKUP_DEFAULTED (LOOKUP_SPECULATIVE << 1) 4239 /* Used in calls to store_init_value to suppress its usual call to 4240 digest_init. */ 4241 #define LOOKUP_ALREADY_DIGESTED (LOOKUP_DEFAULTED << 1) 4242 /* An instantiation with explicit template arguments. */ 4243 #define LOOKUP_EXPLICIT_TMPL_ARGS (LOOKUP_ALREADY_DIGESTED << 1) 4244 4245 #define LOOKUP_NAMESPACES_ONLY(F) \ 4246 (((F) & LOOKUP_PREFER_NAMESPACES) && !((F) & LOOKUP_PREFER_TYPES)) 4247 #define LOOKUP_TYPES_ONLY(F) \ 4248 (!((F) & LOOKUP_PREFER_NAMESPACES) && ((F) & LOOKUP_PREFER_TYPES)) 4249 #define LOOKUP_QUALIFIERS_ONLY(F) ((F) & LOOKUP_PREFER_BOTH) 4250 4251 4252 /* These flags are used by the conversion code. 4253 CONV_IMPLICIT : Perform implicit conversions (standard and user-defined). 4254 CONV_STATIC : Perform the explicit conversions for static_cast. 4255 CONV_CONST : Perform the explicit conversions for const_cast. 4256 CONV_REINTERPRET: Perform the explicit conversions for reinterpret_cast. 4257 CONV_PRIVATE : Perform upcasts to private bases. 4258 CONV_FORCE_TEMP : Require a new temporary when converting to the same 4259 aggregate type. */ 4260 4261 #define CONV_IMPLICIT 1 4262 #define CONV_STATIC 2 4263 #define CONV_CONST 4 4264 #define CONV_REINTERPRET 8 4265 #define CONV_PRIVATE 16 4266 /* #define CONV_NONCONVERTING 32 */ 4267 #define CONV_FORCE_TEMP 64 4268 #define CONV_OLD_CONVERT (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \ 4269 | CONV_REINTERPRET) 4270 #define CONV_C_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \ 4271 | CONV_REINTERPRET | CONV_PRIVATE | CONV_FORCE_TEMP) 4272 4273 /* Used by build_expr_type_conversion to indicate which types are 4274 acceptable as arguments to the expression under consideration. */ 4275 4276 #define WANT_INT 1 /* integer types, including bool */ 4277 #define WANT_FLOAT 2 /* floating point types */ 4278 #define WANT_ENUM 4 /* enumerated types */ 4279 #define WANT_POINTER 8 /* pointer types */ 4280 #define WANT_NULL 16 /* null pointer constant */ 4281 #define WANT_VECTOR_OR_COMPLEX 32 /* vector or complex types */ 4282 #define WANT_ARITH (WANT_INT | WANT_FLOAT | WANT_VECTOR_OR_COMPLEX) 4283 4284 /* Used with comptypes, and related functions, to guide type 4285 comparison. */ 4286 4287 #define COMPARE_STRICT 0 /* Just check if the types are the 4288 same. */ 4289 #define COMPARE_BASE 1 /* Check to see if the second type is 4290 derived from the first. */ 4291 #define COMPARE_DERIVED 2 /* Like COMPARE_BASE, but in 4292 reverse. */ 4293 #define COMPARE_REDECLARATION 4 /* The comparison is being done when 4294 another declaration of an existing 4295 entity is seen. */ 4296 #define COMPARE_STRUCTURAL 8 /* The comparison is intended to be 4297 structural. The actual comparison 4298 will be identical to 4299 COMPARE_STRICT. */ 4300 4301 /* Used with push_overloaded_decl. */ 4302 #define PUSH_GLOBAL 0 /* Push the DECL into namespace scope, 4303 regardless of the current scope. */ 4304 #define PUSH_LOCAL 1 /* Push the DECL into the current 4305 scope. */ 4306 #define PUSH_USING 2 /* We are pushing this DECL as the 4307 result of a using declaration. */ 4308 4309 /* Used with start function. */ 4310 #define SF_DEFAULT 0 /* No flags. */ 4311 #define SF_PRE_PARSED 1 /* The function declaration has 4312 already been parsed. */ 4313 #define SF_INCLASS_INLINE 2 /* The function is an inline, defined 4314 in the class body. */ 4315 4316 /* Used with start_decl's initialized parameter. */ 4317 #define SD_UNINITIALIZED 0 4318 #define SD_INITIALIZED 1 4319 #define SD_DEFAULTED 2 4320 #define SD_DELETED 3 4321 4322 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, or if TYPE2 4323 is derived from TYPE1, or if TYPE2 is a pointer (reference) to a 4324 class derived from the type pointed to (referred to) by TYPE1. */ 4325 #define same_or_base_type_p(TYPE1, TYPE2) \ 4326 comptypes ((TYPE1), (TYPE2), COMPARE_BASE) 4327 4328 /* These macros are used to access a TEMPLATE_PARM_INDEX. */ 4329 #define TEMPLATE_PARM_INDEX_CAST(NODE) \ 4330 ((template_parm_index*)TEMPLATE_PARM_INDEX_CHECK (NODE)) 4331 #define TEMPLATE_PARM_IDX(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->index) 4332 #define TEMPLATE_PARM_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->level) 4333 /* The Number of sibling parms this template parm has. */ 4334 #define TEMPLATE_PARM_NUM_SIBLINGS(NODE) \ 4335 (TEMPLATE_PARM_INDEX_CAST (NODE)->num_siblings) 4336 #define TEMPLATE_PARM_DESCENDANTS(NODE) (TREE_CHAIN (NODE)) 4337 #define TEMPLATE_PARM_ORIG_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->orig_level) 4338 #define TEMPLATE_PARM_DECL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->decl) 4339 #define TEMPLATE_PARM_PARAMETER_PACK(NODE) \ 4340 (TREE_LANG_FLAG_0 (TEMPLATE_PARM_INDEX_CHECK (NODE))) 4341 4342 /* These macros are for accessing the fields of TEMPLATE_TYPE_PARM, 4343 TEMPLATE_TEMPLATE_PARM and BOUND_TEMPLATE_TEMPLATE_PARM nodes. */ 4344 #define TEMPLATE_TYPE_PARM_INDEX(NODE) \ 4345 (TREE_CHECK3 ((NODE), TEMPLATE_TYPE_PARM, TEMPLATE_TEMPLATE_PARM, \ 4346 BOUND_TEMPLATE_TEMPLATE_PARM))->type.values 4347 #define TEMPLATE_TYPE_IDX(NODE) \ 4348 (TEMPLATE_PARM_IDX (TEMPLATE_TYPE_PARM_INDEX (NODE))) 4349 #define TEMPLATE_TYPE_LEVEL(NODE) \ 4350 (TEMPLATE_PARM_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE))) 4351 #define TEMPLATE_TYPE_ORIG_LEVEL(NODE) \ 4352 (TEMPLATE_PARM_ORIG_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE))) 4353 #define TEMPLATE_TYPE_DECL(NODE) \ 4354 (TEMPLATE_PARM_DECL (TEMPLATE_TYPE_PARM_INDEX (NODE))) 4355 #define TEMPLATE_TYPE_PARAMETER_PACK(NODE) \ 4356 (TEMPLATE_PARM_PARAMETER_PACK (TEMPLATE_TYPE_PARM_INDEX (NODE))) 4357 4358 /* These constants can used as bit flags in the process of tree formatting. 4359 4360 TFF_PLAIN_IDENTIFIER: unqualified part of a name. 4361 TFF_SCOPE: include the class and namespace scope of the name. 4362 TFF_CHASE_TYPEDEF: print the original type-id instead of the typedef-name. 4363 TFF_DECL_SPECIFIERS: print decl-specifiers. 4364 TFF_CLASS_KEY_OR_ENUM: precede a class-type name (resp. enum name) with 4365 a class-key (resp. `enum'). 4366 TFF_RETURN_TYPE: include function return type. 4367 TFF_FUNCTION_DEFAULT_ARGUMENTS: include function default parameter values. 4368 TFF_EXCEPTION_SPECIFICATION: show function exception specification. 4369 TFF_TEMPLATE_HEADER: show the template<...> header in a 4370 template-declaration. 4371 TFF_TEMPLATE_NAME: show only template-name. 4372 TFF_EXPR_IN_PARENS: parenthesize expressions. 4373 TFF_NO_FUNCTION_ARGUMENTS: don't show function arguments. 4374 TFF_UNQUALIFIED_NAME: do not print the qualifying scope of the 4375 top-level entity. 4376 TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS: do not omit template arguments 4377 identical to their defaults. */ 4378 4379 #define TFF_PLAIN_IDENTIFIER (0) 4380 #define TFF_SCOPE (1) 4381 #define TFF_CHASE_TYPEDEF (1 << 1) 4382 #define TFF_DECL_SPECIFIERS (1 << 2) 4383 #define TFF_CLASS_KEY_OR_ENUM (1 << 3) 4384 #define TFF_RETURN_TYPE (1 << 4) 4385 #define TFF_FUNCTION_DEFAULT_ARGUMENTS (1 << 5) 4386 #define TFF_EXCEPTION_SPECIFICATION (1 << 6) 4387 #define TFF_TEMPLATE_HEADER (1 << 7) 4388 #define TFF_TEMPLATE_NAME (1 << 8) 4389 #define TFF_EXPR_IN_PARENS (1 << 9) 4390 #define TFF_NO_FUNCTION_ARGUMENTS (1 << 10) 4391 #define TFF_UNQUALIFIED_NAME (1 << 11) 4392 #define TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS (1 << 12) 4393 4394 /* Returns the TEMPLATE_DECL associated to a TEMPLATE_TEMPLATE_PARM 4395 node. */ 4396 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_DECL(NODE) \ 4397 ((TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM) \ 4398 ? TYPE_TI_TEMPLATE (NODE) \ 4399 : TYPE_NAME (NODE)) 4400 4401 /* in lex.c */ 4402 4403 extern void init_reswords (void); 4404 4405 typedef struct GTY(()) operator_name_info_t { 4406 /* The IDENTIFIER_NODE for the operator. */ 4407 tree identifier; 4408 /* The name of the operator. */ 4409 const char *name; 4410 /* The mangled name of the operator. */ 4411 const char *mangled_name; 4412 /* The arity of the operator. */ 4413 int arity; 4414 } operator_name_info_t; 4415 4416 /* A mapping from tree codes to operator name information. */ 4417 extern GTY(()) operator_name_info_t operator_name_info 4418 [(int) MAX_TREE_CODES]; 4419 /* Similar, but for assignment operators. */ 4420 extern GTY(()) operator_name_info_t assignment_operator_name_info 4421 [(int) MAX_TREE_CODES]; 4422 4423 /* A type-qualifier, or bitmask therefore, using the TYPE_QUAL 4424 constants. */ 4425 4426 typedef int cp_cv_quals; 4427 4428 /* A storage class. */ 4429 4430 typedef enum cp_storage_class { 4431 /* sc_none must be zero so that zeroing a cp_decl_specifier_seq 4432 sets the storage_class field to sc_none. */ 4433 sc_none = 0, 4434 sc_auto, 4435 sc_register, 4436 sc_static, 4437 sc_extern, 4438 sc_mutable 4439 } cp_storage_class; 4440 4441 /* An individual decl-specifier. */ 4442 4443 typedef enum cp_decl_spec { 4444 ds_first, 4445 ds_signed = ds_first, 4446 ds_unsigned, 4447 ds_short, 4448 ds_long, 4449 ds_const, 4450 ds_volatile, 4451 ds_restrict, 4452 ds_inline, 4453 ds_virtual, 4454 ds_explicit, 4455 ds_friend, 4456 ds_typedef, 4457 ds_constexpr, 4458 ds_complex, 4459 ds_thread, 4460 ds_last 4461 } cp_decl_spec; 4462 4463 /* A decl-specifier-seq. */ 4464 4465 typedef struct cp_decl_specifier_seq { 4466 /* The number of times each of the keywords has been seen. */ 4467 unsigned specs[(int) ds_last]; 4468 /* The location of the primary type. Mainly used for error 4469 reporting. */ 4470 location_t type_location; 4471 /* The primary type, if any, given by the decl-specifier-seq. 4472 Modifiers, like "short", "const", and "unsigned" are not 4473 reflected here. This field will be a TYPE, unless a typedef-name 4474 was used, in which case it will be a TYPE_DECL. */ 4475 tree type; 4476 /* The attributes, if any, provided with the specifier sequence. */ 4477 tree attributes; 4478 /* If non-NULL, a built-in type that the user attempted to redefine 4479 to some other type. */ 4480 tree redefined_builtin_type; 4481 /* The storage class specified -- or sc_none if no storage class was 4482 explicitly specified. */ 4483 cp_storage_class storage_class; 4484 /* True iff TYPE_SPEC indicates a user-defined type. */ 4485 BOOL_BITFIELD user_defined_type_p : 1; 4486 /* True iff multiple types were (erroneously) specified for this 4487 decl-specifier-seq. */ 4488 BOOL_BITFIELD multiple_types_p : 1; 4489 /* True iff multiple storage classes were (erroneously) specified 4490 for this decl-specifier-seq or a combination of a storage class 4491 with a typedef specifier. */ 4492 BOOL_BITFIELD conflicting_specifiers_p : 1; 4493 /* True iff at least one decl-specifier was found. */ 4494 BOOL_BITFIELD any_specifiers_p : 1; 4495 /* True iff at least one type-specifier was found. */ 4496 BOOL_BITFIELD any_type_specifiers_p : 1; 4497 /* True iff "int" was explicitly provided. */ 4498 BOOL_BITFIELD explicit_int_p : 1; 4499 /* True iff "__int128" was explicitly provided. */ 4500 BOOL_BITFIELD explicit_int128_p : 1; 4501 /* True iff "char" was explicitly provided. */ 4502 BOOL_BITFIELD explicit_char_p : 1; 4503 } cp_decl_specifier_seq; 4504 4505 /* The various kinds of declarators. */ 4506 4507 typedef enum cp_declarator_kind { 4508 cdk_id, 4509 cdk_function, 4510 cdk_array, 4511 cdk_pointer, 4512 cdk_reference, 4513 cdk_ptrmem, 4514 cdk_error 4515 } cp_declarator_kind; 4516 4517 /* A declarator. */ 4518 4519 typedef struct cp_declarator cp_declarator; 4520 4521 typedef struct cp_parameter_declarator cp_parameter_declarator; 4522 4523 /* A parameter, before it has been semantically analyzed. */ 4524 struct cp_parameter_declarator { 4525 /* The next parameter, or NULL_TREE if none. */ 4526 cp_parameter_declarator *next; 4527 /* The decl-specifiers-seq for the parameter. */ 4528 cp_decl_specifier_seq decl_specifiers; 4529 /* The declarator for the parameter. */ 4530 cp_declarator *declarator; 4531 /* The default-argument expression, or NULL_TREE, if none. */ 4532 tree default_argument; 4533 /* True iff this is the first parameter in the list and the 4534 parameter sequence ends with an ellipsis. */ 4535 bool ellipsis_p; 4536 }; 4537 4538 /* A declarator. */ 4539 struct cp_declarator { 4540 /* The kind of declarator. */ 4541 ENUM_BITFIELD (cp_declarator_kind) kind : 4; 4542 /* Whether we parsed an ellipsis (`...') just before the declarator, 4543 to indicate this is a parameter pack. */ 4544 BOOL_BITFIELD parameter_pack_p : 1; 4545 location_t id_loc; /* Currently only set for cdk_id and cdk_function. */ 4546 /* Attributes that apply to this declarator. */ 4547 tree attributes; 4548 /* For all but cdk_id and cdk_error, the contained declarator. For 4549 cdk_id and cdk_error, guaranteed to be NULL. */ 4550 cp_declarator *declarator; 4551 union { 4552 /* For identifiers. */ 4553 struct { 4554 /* If non-NULL, the qualifying scope (a NAMESPACE_DECL or 4555 *_TYPE) for this identifier. */ 4556 tree qualifying_scope; 4557 /* The unqualified name of the entity -- an IDENTIFIER_NODE, 4558 BIT_NOT_EXPR, or TEMPLATE_ID_EXPR. */ 4559 tree unqualified_name; 4560 /* If this is the name of a function, what kind of special 4561 function (if any). */ 4562 special_function_kind sfk; 4563 } id; 4564 /* For functions. */ 4565 struct { 4566 /* The parameters to the function as a TREE_LIST of decl/default. */ 4567 tree parameters; 4568 /* The cv-qualifiers for the function. */ 4569 cp_cv_quals qualifiers; 4570 /* The exception-specification for the function. */ 4571 tree exception_specification; 4572 /* The late-specified return type, if any. */ 4573 tree late_return_type; 4574 } function; 4575 /* For arrays. */ 4576 struct { 4577 /* The bounds to the array. */ 4578 tree bounds; 4579 } array; 4580 /* For cdk_pointer and cdk_ptrmem. */ 4581 struct { 4582 /* The cv-qualifiers for the pointer. */ 4583 cp_cv_quals qualifiers; 4584 /* For cdk_ptrmem, the class type containing the member. */ 4585 tree class_type; 4586 } pointer; 4587 /* For cdk_reference */ 4588 struct { 4589 /* The cv-qualifiers for the reference. These qualifiers are 4590 only used to diagnose ill-formed code. */ 4591 cp_cv_quals qualifiers; 4592 /* Whether this is an rvalue reference */ 4593 bool rvalue_ref; 4594 } reference; 4595 } u; 4596 }; 4597 4598 /* A level of template instantiation. */ 4599 struct GTY(()) tinst_level { 4600 /* The immediately deeper level in the chain. */ 4601 struct tinst_level *next; 4602 4603 /* The original node. Can be either a DECL (for a function or static 4604 data member) or a TYPE (for a class), depending on what we were 4605 asked to instantiate. */ 4606 tree decl; 4607 4608 /* The location where the template is instantiated. */ 4609 location_t locus; 4610 4611 /* True if the location is in a system header. */ 4612 bool in_system_header_p; 4613 }; 4614 4615 /* A parameter list indicating for a function with no parameters, 4616 e.g "int f(void)". */ 4617 extern cp_parameter_declarator *no_parameters; 4618 4619 /* True if we saw "#pragma GCC java_exceptions". */ 4620 extern bool pragma_java_exceptions; 4621 4622 /* in call.c */ 4623 extern bool check_dtor_name (tree, tree); 4624 4625 extern tree build_conditional_expr (tree, tree, tree, 4626 tsubst_flags_t); 4627 extern tree build_addr_func (tree); 4628 extern tree build_call_a (tree, int, tree*); 4629 extern tree build_call_n (tree, int, ...); 4630 extern bool null_ptr_cst_p (tree); 4631 extern bool sufficient_parms_p (const_tree); 4632 extern tree type_decays_to (tree); 4633 extern tree build_user_type_conversion (tree, tree, int); 4634 extern tree build_new_function_call (tree, VEC(tree,gc) **, bool, 4635 tsubst_flags_t); 4636 extern tree build_operator_new_call (tree, VEC(tree,gc) **, tree *, 4637 tree *, tree *); 4638 extern tree build_new_method_call (tree, tree, VEC(tree,gc) **, 4639 tree, int, tree *, 4640 tsubst_flags_t); 4641 extern tree build_special_member_call (tree, tree, VEC(tree,gc) **, 4642 tree, int, tsubst_flags_t); 4643 extern tree build_new_op (enum tree_code, int, tree, 4644 tree, tree, bool *, 4645 tsubst_flags_t); 4646 extern tree build_op_call (tree, VEC(tree,gc) **, 4647 tsubst_flags_t); 4648 extern tree build_op_delete_call (enum tree_code, tree, tree, bool, tree, tree); 4649 extern bool can_convert (tree, tree); 4650 extern bool can_convert_arg (tree, tree, tree, int); 4651 extern bool can_convert_arg_bad (tree, tree, tree, int); 4652 extern bool enforce_access (tree, tree, tree); 4653 extern tree convert_default_arg (tree, tree, tree, int); 4654 extern tree convert_arg_to_ellipsis (tree); 4655 extern tree build_x_va_arg (tree, tree); 4656 extern tree cxx_type_promotes_to (tree); 4657 extern tree type_passed_as (tree); 4658 extern tree convert_for_arg_passing (tree, tree); 4659 extern bool is_properly_derived_from (tree, tree); 4660 extern tree set_up_extended_ref_temp (tree, tree, tree *, tree *); 4661 extern tree initialize_reference (tree, tree, tree, tree *, tsubst_flags_t); 4662 extern tree make_temporary_var_for_ref_to_temp (tree, tree); 4663 extern tree strip_top_quals (tree); 4664 extern bool reference_related_p (tree, tree); 4665 extern tree perform_implicit_conversion (tree, tree, tsubst_flags_t); 4666 extern tree perform_implicit_conversion_flags (tree, tree, tsubst_flags_t, int); 4667 extern tree build_integral_nontype_arg_conv (tree, tree, tsubst_flags_t); 4668 extern tree perform_direct_initialization_if_possible (tree, tree, bool, 4669 tsubst_flags_t); 4670 extern tree in_charge_arg_for_name (tree); 4671 extern tree build_cxx_call (tree, int, tree *); 4672 extern bool is_std_init_list (tree); 4673 extern bool is_list_ctor (tree); 4674 #ifdef ENABLE_CHECKING 4675 extern void validate_conversion_obstack (void); 4676 #endif /* ENABLE_CHECKING */ 4677 4678 /* in class.c */ 4679 extern tree build_vfield_ref (tree, tree); 4680 extern tree build_base_path (enum tree_code, tree, 4681 tree, int); 4682 extern tree convert_to_base (tree, tree, bool, bool, 4683 tsubst_flags_t); 4684 extern tree convert_to_base_statically (tree, tree); 4685 extern tree build_vtbl_ref (tree, tree); 4686 extern tree build_vfn_ref (tree, tree); 4687 extern tree get_vtable_decl (tree, int); 4688 extern void resort_type_method_vec (void *, void *, 4689 gt_pointer_operator, void *); 4690 extern bool add_method (tree, tree, tree); 4691 extern bool currently_open_class (tree); 4692 extern tree currently_open_derived_class (tree); 4693 extern tree current_nonlambda_class_type (void); 4694 extern tree finish_struct (tree, tree); 4695 extern void finish_struct_1 (tree); 4696 extern int resolves_to_fixed_type_p (tree, int *); 4697 extern void init_class_processing (void); 4698 extern int is_empty_class (tree); 4699 extern bool is_really_empty_class (tree); 4700 extern void pushclass (tree); 4701 extern void popclass (void); 4702 extern void push_nested_class (tree); 4703 extern void pop_nested_class (void); 4704 extern int current_lang_depth (void); 4705 extern void push_lang_context (tree); 4706 extern void pop_lang_context (void); 4707 extern tree instantiate_type (tree, tree, tsubst_flags_t); 4708 extern void print_class_statistics (void); 4709 extern void build_self_reference (void); 4710 extern int same_signature_p (const_tree, const_tree); 4711 extern void maybe_add_class_template_decl_list (tree, tree, int); 4712 extern void unreverse_member_declarations (tree); 4713 extern void invalidate_class_lookup_cache (void); 4714 extern void maybe_note_name_used_in_class (tree, tree); 4715 extern void note_name_declared_in_class (tree, tree); 4716 extern tree get_vtbl_decl_for_binfo (tree); 4717 extern void debug_class (tree); 4718 extern void debug_thunks (tree); 4719 extern tree cp_get_virtual_function_decl (tree, tree); 4720 extern tree cp_fold_obj_type_ref (tree, tree); 4721 extern bool cp_decl_is_base_field (tree); 4722 extern bool cp_decl_is_constructor (tree); 4723 extern bool cp_decl_is_destructor (tree); 4724 extern int cp_decl_is_const_member_func (tree); 4725 extern void set_linkage_according_to_type (tree, tree); 4726 extern void determine_key_method (tree); 4727 extern void check_for_override (tree, tree); 4728 extern void push_class_stack (void); 4729 extern void pop_class_stack (void); 4730 extern bool type_has_user_nondefault_constructor (tree); 4731 extern tree in_class_defaulted_default_constructor (tree); 4732 extern bool user_provided_p (tree); 4733 extern bool type_has_user_provided_constructor (tree); 4734 extern bool type_has_user_provided_default_constructor (tree); 4735 extern tree default_init_uninitialized_part (tree); 4736 extern bool synthesized_default_constructor_is_constexpr (tree); 4737 extern bool type_has_constexpr_default_constructor (tree); 4738 extern bool type_has_virtual_destructor (tree); 4739 extern bool type_has_move_constructor (tree); 4740 extern bool type_has_move_assign (tree); 4741 extern void defaulted_late_check (tree); 4742 extern bool defaultable_fn_check (tree); 4743 extern void fixup_type_variants (tree); 4744 extern void fixup_attribute_variants (tree); 4745 extern tree* decl_cloned_function_p (const_tree, bool); 4746 extern void clone_function_decl (tree, int); 4747 extern void adjust_clone_args (tree); 4748 4749 /* in cvt.c */ 4750 extern tree convert_to_reference (tree, tree, int, int, tree); 4751 extern tree convert_from_reference (tree); 4752 extern tree force_rvalue (tree); 4753 extern tree ocp_convert (tree, tree, int, int); 4754 extern tree cp_convert (tree, tree); 4755 extern tree cp_convert_and_check (tree, tree); 4756 extern tree cp_fold_convert (tree, tree); 4757 extern tree convert_to_void (tree, impl_conv_void, 4758 tsubst_flags_t); 4759 extern tree convert_force (tree, tree, int); 4760 extern tree build_expr_type_conversion (int, tree, bool); 4761 extern tree type_promotes_to (tree); 4762 extern tree perform_qualification_conversions (tree, tree); 4763 4764 /* in name-lookup.c */ 4765 extern tree pushdecl (tree); 4766 extern tree pushdecl_maybe_friend (tree, bool); 4767 extern void maybe_push_cleanup_level (tree); 4768 extern tree pushtag (tree, tree, tag_scope); 4769 extern tree make_anon_name (void); 4770 extern tree pushdecl_top_level_maybe_friend (tree, bool); 4771 extern tree pushdecl_top_level_and_finish (tree, tree); 4772 extern tree check_for_out_of_scope_variable (tree); 4773 extern void print_other_binding_stack (struct cp_binding_level *); 4774 extern tree maybe_push_decl (tree); 4775 extern tree current_decl_namespace (void); 4776 4777 /* decl.c */ 4778 extern tree poplevel (int, int, int); 4779 extern void cxx_init_decl_processing (void); 4780 enum cp_tree_node_structure_enum cp_tree_node_structure 4781 (union lang_tree_node *); 4782 extern void finish_scope (void); 4783 extern void push_switch (tree); 4784 extern void pop_switch (void); 4785 extern tree make_lambda_name (void); 4786 extern int decls_match (tree, tree); 4787 extern tree duplicate_decls (tree, tree, bool); 4788 extern tree declare_local_label (tree); 4789 extern tree define_label (location_t, tree); 4790 extern void check_goto (tree); 4791 extern bool check_omp_return (void); 4792 extern tree make_typename_type (tree, tree, enum tag_types, tsubst_flags_t); 4793 extern tree make_unbound_class_template (tree, tree, tree, tsubst_flags_t); 4794 extern tree build_library_fn_ptr (const char *, tree); 4795 extern tree build_cp_library_fn_ptr (const char *, tree); 4796 extern tree push_library_fn (tree, tree, tree); 4797 extern tree push_void_library_fn (tree, tree); 4798 extern tree push_throw_library_fn (tree, tree); 4799 extern tree check_tag_decl (cp_decl_specifier_seq *); 4800 extern tree shadow_tag (cp_decl_specifier_seq *); 4801 extern tree groktypename (cp_decl_specifier_seq *, const cp_declarator *, bool); 4802 extern tree start_decl (const cp_declarator *, cp_decl_specifier_seq *, int, tree, tree, tree *); 4803 extern void start_decl_1 (tree, bool); 4804 extern bool check_array_initializer (tree, tree, tree); 4805 extern void cp_finish_decl (tree, tree, bool, tree, int); 4806 extern int cp_complete_array_type (tree *, tree, bool); 4807 extern tree build_ptrmemfunc_type (tree); 4808 extern tree build_ptrmem_type (tree, tree); 4809 /* the grokdeclarator prototype is in decl.h */ 4810 extern tree build_this_parm (tree, cp_cv_quals); 4811 extern int copy_fn_p (const_tree); 4812 extern bool move_fn_p (const_tree); 4813 extern tree get_scope_of_declarator (const cp_declarator *); 4814 extern void grok_special_member_properties (tree); 4815 extern int grok_ctor_properties (const_tree, const_tree); 4816 extern bool grok_op_properties (tree, bool); 4817 extern tree xref_tag (enum tag_types, tree, tag_scope, bool); 4818 extern tree xref_tag_from_type (tree, tree, tag_scope); 4819 extern bool xref_basetypes (tree, tree); 4820 extern tree start_enum (tree, tree, tree, bool, bool *); 4821 extern void finish_enum_value_list (tree); 4822 extern void finish_enum (tree); 4823 extern void build_enumerator (tree, tree, tree, location_t); 4824 extern tree lookup_enumerator (tree, tree); 4825 extern void start_preparsed_function (tree, tree, int); 4826 extern int start_function (cp_decl_specifier_seq *, const cp_declarator *, tree); 4827 extern tree begin_function_body (void); 4828 extern void finish_function_body (tree); 4829 extern tree outer_curly_brace_block (tree); 4830 extern tree finish_function (int); 4831 extern tree grokmethod (cp_decl_specifier_seq *, const cp_declarator *, tree); 4832 extern void maybe_register_incomplete_var (tree); 4833 extern void maybe_commonize_var (tree); 4834 extern void complete_vars (tree); 4835 extern void finish_stmt (void); 4836 extern tree static_fn_type (tree); 4837 extern void revert_static_member_fn (tree); 4838 extern void fixup_anonymous_aggr (tree); 4839 extern int check_static_variable_definition (tree, tree); 4840 extern tree compute_array_index_type (tree, tree, tsubst_flags_t); 4841 extern tree check_default_argument (tree, tree); 4842 typedef int (*walk_namespaces_fn) (tree, void *); 4843 extern int walk_namespaces (walk_namespaces_fn, 4844 void *); 4845 extern int wrapup_globals_for_namespace (tree, void *); 4846 extern tree create_implicit_typedef (tree, tree); 4847 extern int local_variable_p (const_tree); 4848 extern tree register_dtor_fn (tree); 4849 extern tmpl_spec_kind current_tmpl_spec_kind (int); 4850 extern tree cp_fname_init (const char *, tree *); 4851 extern tree cxx_builtin_function (tree decl); 4852 extern tree cxx_builtin_function_ext_scope (tree decl); 4853 extern tree check_elaborated_type_specifier (enum tag_types, tree, bool); 4854 extern void warn_extern_redeclared_static (tree, tree); 4855 extern tree cxx_comdat_group (tree); 4856 extern bool cp_missing_noreturn_ok_p (tree); 4857 extern void initialize_artificial_var (tree, VEC(constructor_elt,gc) *); 4858 extern tree check_var_type (tree, tree); 4859 extern tree reshape_init (tree, tree); 4860 extern tree next_initializable_field (tree); 4861 4862 extern bool defer_mark_used_calls; 4863 extern GTY(()) VEC(tree, gc) *deferred_mark_used_calls; 4864 extern tree finish_case_label (location_t, tree, tree); 4865 extern tree cxx_maybe_build_cleanup (tree); 4866 4867 /* in decl2.c */ 4868 extern bool check_java_method (tree); 4869 extern tree build_memfn_type (tree, tree, cp_cv_quals); 4870 extern tree change_return_type (tree, tree); 4871 extern void maybe_retrofit_in_chrg (tree); 4872 extern void maybe_make_one_only (tree); 4873 extern bool vague_linkage_p (tree); 4874 extern void grokclassfn (tree, tree, 4875 enum overload_flags); 4876 extern tree grok_array_decl (tree, tree); 4877 extern tree delete_sanity (tree, tree, bool, int); 4878 extern tree check_classfn (tree, tree, tree); 4879 extern void check_member_template (tree); 4880 extern tree grokfield (const cp_declarator *, cp_decl_specifier_seq *, 4881 tree, bool, tree, tree); 4882 extern tree grokbitfield (const cp_declarator *, cp_decl_specifier_seq *, 4883 tree, tree); 4884 extern tree cp_reconstruct_complex_type (tree, tree); 4885 extern void cplus_decl_attributes (tree *, tree, int); 4886 extern void finish_anon_union (tree); 4887 extern void cp_write_global_declarations (void); 4888 extern void cp_process_pending_declarations (location_t); 4889 extern void cp_clear_deferred_fns (void); 4890 extern void cp_clear_conv_type_map (void); 4891 extern tree coerce_new_type (tree); 4892 extern tree coerce_delete_type (tree); 4893 extern void comdat_linkage (tree); 4894 extern void determine_visibility (tree); 4895 extern void constrain_class_visibility (tree); 4896 extern void import_export_decl (tree); 4897 extern tree build_cleanup (tree); 4898 extern tree build_offset_ref_call_from_tree (tree, VEC(tree,gc) **); 4899 extern bool decl_constant_var_p (tree); 4900 extern bool decl_maybe_constant_var_p (tree); 4901 extern void check_default_args (tree); 4902 extern void mark_used (tree); 4903 extern void finish_static_data_member_decl (tree, tree, bool, tree, int); 4904 extern tree cp_build_parm_decl (tree, tree); 4905 extern tree get_guard (tree); 4906 extern tree get_guard_cond (tree); 4907 extern tree set_guard (tree); 4908 extern tree cxx_callgraph_analyze_expr (tree *, int *); 4909 extern void mark_needed (tree); 4910 extern bool decl_needed_p (tree); 4911 extern void note_vague_linkage_fn (tree); 4912 extern tree build_artificial_parm (tree, tree); 4913 extern bool possibly_inlined_p (tree); 4914 extern int parm_index (tree); 4915 4916 /* in error.c */ 4917 extern void init_error (void); 4918 extern const char *type_as_string (tree, int); 4919 extern const char *type_as_string_translate (tree, int); 4920 extern const char *decl_as_string (tree, int); 4921 extern const char *decl_as_string_translate (tree, int); 4922 extern const char *expr_as_string (tree, int); 4923 extern const char *lang_decl_name (tree, int, bool); 4924 extern const char *language_to_string (enum languages); 4925 extern const char *class_key_or_enum_as_string (tree); 4926 extern void print_instantiation_context (void); 4927 extern void maybe_warn_variadic_templates (void); 4928 extern void maybe_warn_cpp0x (cpp0x_warn_str str); 4929 extern bool pedwarn_cxx98 (location_t, int, const char *, ...) ATTRIBUTE_GCC_DIAG(3,4); 4930 extern location_t location_of (tree); 4931 extern void qualified_name_lookup_error (tree, tree, tree, 4932 location_t); 4933 4934 /* in except.c */ 4935 extern void init_exception_processing (void); 4936 extern tree expand_start_catch_block (tree); 4937 extern void expand_end_catch_block (void); 4938 extern tree build_exc_ptr (void); 4939 extern tree build_throw (tree); 4940 extern int nothrow_libfn_p (const_tree); 4941 extern void check_handlers (tree); 4942 extern tree finish_noexcept_expr (tree, tsubst_flags_t); 4943 extern void perform_deferred_noexcept_checks (void); 4944 extern bool nothrow_spec_p (const_tree); 4945 extern bool type_noexcept_p (const_tree); 4946 extern bool type_throw_all_p (const_tree); 4947 extern tree build_noexcept_spec (tree, int); 4948 extern void choose_personality_routine (enum languages); 4949 extern tree eh_type_info (tree); 4950 extern tree begin_eh_spec_block (void); 4951 extern void finish_eh_spec_block (tree, tree); 4952 extern tree build_eh_type_type (tree); 4953 extern tree cp_protect_cleanup_actions (void); 4954 4955 /* in expr.c */ 4956 extern tree cplus_expand_constant (tree); 4957 extern tree mark_rvalue_use (tree); 4958 extern tree mark_lvalue_use (tree); 4959 extern tree mark_type_use (tree); 4960 extern void mark_exp_read (tree); 4961 4962 /* friend.c */ 4963 extern int is_friend (tree, tree); 4964 extern void make_friend_class (tree, tree, bool); 4965 extern void add_friend (tree, tree, bool); 4966 extern tree do_friend (tree, tree, tree, tree, enum overload_flags, bool); 4967 4968 /* in init.c */ 4969 extern tree expand_member_init (tree); 4970 extern void emit_mem_initializers (tree); 4971 extern tree build_aggr_init (tree, tree, int, 4972 tsubst_flags_t); 4973 extern int is_class_type (tree, int); 4974 extern tree get_type_value (tree); 4975 extern tree build_zero_init (tree, tree, bool); 4976 extern tree build_value_init (tree, tsubst_flags_t); 4977 extern tree build_value_init_noctor (tree, tsubst_flags_t); 4978 extern tree build_offset_ref (tree, tree, bool); 4979 extern tree build_new (VEC(tree,gc) **, tree, tree, 4980 VEC(tree,gc) **, int, 4981 tsubst_flags_t); 4982 extern tree get_temp_regvar (tree, tree); 4983 extern tree build_vec_init (tree, tree, tree, bool, int, 4984 tsubst_flags_t); 4985 extern tree build_delete (tree, tree, 4986 special_function_kind, 4987 int, int); 4988 extern void push_base_cleanups (void); 4989 extern tree build_vec_delete (tree, tree, 4990 special_function_kind, int); 4991 extern tree create_temporary_var (tree); 4992 extern void initialize_vtbl_ptrs (tree); 4993 extern tree build_java_class_ref (tree); 4994 extern tree integral_constant_value (tree); 4995 extern int diagnose_uninitialized_cst_or_ref_member (tree, bool, bool); 4996 4997 /* in lex.c */ 4998 extern void cxx_dup_lang_specific_decl (tree); 4999 extern void yyungetc (int, int); 5000 5001 extern tree unqualified_name_lookup_error (tree); 5002 extern tree unqualified_fn_lookup_error (tree); 5003 extern tree build_lang_decl (enum tree_code, tree, tree); 5004 extern tree build_lang_decl_loc (location_t, enum tree_code, tree, tree); 5005 extern void retrofit_lang_decl (tree); 5006 extern tree copy_decl (tree); 5007 extern tree copy_type (tree); 5008 extern tree cxx_make_type (enum tree_code); 5009 extern tree make_class_type (enum tree_code); 5010 extern bool cxx_init (void); 5011 extern void cxx_finish (void); 5012 extern bool in_main_input_context (void); 5013 5014 /* in method.c */ 5015 extern void init_method (void); 5016 extern tree make_thunk (tree, bool, tree, tree); 5017 extern void finish_thunk (tree); 5018 extern void use_thunk (tree, bool); 5019 extern bool trivial_fn_p (tree); 5020 extern bool maybe_explain_implicit_delete (tree); 5021 extern void synthesize_method (tree); 5022 extern tree lazily_declare_fn (special_function_kind, 5023 tree); 5024 extern tree skip_artificial_parms_for (const_tree, tree); 5025 extern int num_artificial_parms_for (const_tree); 5026 extern tree make_alias_for (tree, tree); 5027 extern tree get_copy_ctor (tree, tsubst_flags_t); 5028 extern tree get_copy_assign (tree); 5029 extern tree get_default_ctor (tree); 5030 extern tree get_dtor (tree, tsubst_flags_t); 5031 extern tree locate_ctor (tree); 5032 5033 /* In optimize.c */ 5034 extern bool maybe_clone_body (tree); 5035 5036 /* in pt.c */ 5037 extern bool check_template_shadow (tree); 5038 extern tree get_innermost_template_args (tree, int); 5039 extern void maybe_begin_member_template_processing (tree); 5040 extern void maybe_end_member_template_processing (void); 5041 extern tree finish_member_template_decl (tree); 5042 extern void begin_template_parm_list (void); 5043 extern bool begin_specialization (void); 5044 extern void reset_specialization (void); 5045 extern void end_specialization (void); 5046 extern void begin_explicit_instantiation (void); 5047 extern void end_explicit_instantiation (void); 5048 extern tree check_explicit_specialization (tree, tree, int, int); 5049 extern tree make_auto (void); 5050 extern tree do_auto_deduction (tree, tree, tree); 5051 extern tree type_uses_auto (tree); 5052 extern void append_type_to_template_for_access_check (tree, tree, tree, 5053 location_t); 5054 extern tree splice_late_return_type (tree, tree); 5055 extern bool is_auto (const_tree); 5056 extern tree process_template_parm (tree, location_t, tree, 5057 bool, bool, unsigned); 5058 extern tree end_template_parm_list (tree); 5059 void fixup_template_parms (void); 5060 extern void end_template_decl (void); 5061 extern tree maybe_update_decl_type (tree, tree); 5062 extern bool check_default_tmpl_args (tree, tree, int, int, int); 5063 extern tree push_template_decl (tree); 5064 extern tree push_template_decl_real (tree, bool); 5065 extern bool redeclare_class_template (tree, tree); 5066 extern tree lookup_template_class (tree, tree, tree, tree, 5067 int, tsubst_flags_t); 5068 extern tree lookup_template_function (tree, tree); 5069 extern int uses_template_parms (tree); 5070 extern int uses_template_parms_level (tree, int); 5071 extern tree instantiate_class_template (tree); 5072 extern tree instantiate_template (tree, tree, tsubst_flags_t); 5073 extern int fn_type_unification (tree, tree, tree, 5074 const tree *, unsigned int, 5075 tree, unification_kind_t, int); 5076 extern void mark_decl_instantiated (tree, int); 5077 extern int more_specialized_fn (tree, tree, int); 5078 extern void do_decl_instantiation (tree, tree); 5079 extern void do_type_instantiation (tree, tree, tsubst_flags_t); 5080 extern bool always_instantiate_p (tree); 5081 extern tree instantiate_decl (tree, int, bool); 5082 extern int comp_template_parms (const_tree, const_tree); 5083 extern bool uses_parameter_packs (tree); 5084 extern bool template_parameter_pack_p (const_tree); 5085 extern bool function_parameter_pack_p (const_tree); 5086 extern bool function_parameter_expanded_from_pack_p (tree, tree); 5087 extern tree make_pack_expansion (tree); 5088 extern bool check_for_bare_parameter_packs (tree); 5089 extern tree build_template_info (tree, tree); 5090 extern tree get_template_info (const_tree); 5091 extern VEC(qualified_typedef_usage_t,gc)* get_types_needing_access_check (tree); 5092 extern int template_class_depth (tree); 5093 extern int is_specialization_of (tree, tree); 5094 extern bool is_specialization_of_friend (tree, tree); 5095 extern tree get_pattern_parm (tree, tree); 5096 extern int comp_template_args (tree, tree); 5097 extern tree maybe_process_partial_specialization (tree); 5098 extern tree most_specialized_instantiation (tree); 5099 extern void print_candidates (tree); 5100 extern void instantiate_pending_templates (int); 5101 extern tree tsubst_default_argument (tree, tree, tree); 5102 extern tree tsubst (tree, tree, tsubst_flags_t, tree); 5103 extern tree tsubst_copy_and_build (tree, tree, tsubst_flags_t, 5104 tree, bool, bool); 5105 extern tree most_general_template (tree); 5106 extern tree get_mostly_instantiated_function_type (tree); 5107 extern int problematic_instantiation_changed (void); 5108 extern void record_last_problematic_instantiation (void); 5109 extern struct tinst_level *current_instantiation(void); 5110 extern tree maybe_get_template_decl_from_type_decl (tree); 5111 extern int processing_template_parmlist; 5112 extern bool dependent_type_p (tree); 5113 extern bool dependent_scope_p (tree); 5114 extern bool any_dependent_template_arguments_p (const_tree); 5115 extern bool dependent_template_p (tree); 5116 extern bool dependent_template_id_p (tree, tree); 5117 extern bool type_dependent_expression_p (tree); 5118 extern bool any_type_dependent_arguments_p (const VEC(tree,gc) *); 5119 extern bool type_dependent_expression_p_push (tree); 5120 extern bool value_dependent_expression_p (tree); 5121 extern bool any_value_dependent_elements_p (const_tree); 5122 extern bool dependent_omp_for_p (tree, tree, tree, tree); 5123 extern tree resolve_typename_type (tree, bool); 5124 extern tree template_for_substitution (tree); 5125 extern tree build_non_dependent_expr (tree); 5126 extern void make_args_non_dependent (VEC(tree,gc) *); 5127 extern bool reregister_specialization (tree, tree, tree); 5128 extern tree fold_non_dependent_expr (tree); 5129 extern bool explicit_class_specialization_p (tree); 5130 extern int push_tinst_level (tree); 5131 extern void pop_tinst_level (void); 5132 extern struct tinst_level *outermost_tinst_level(void); 5133 extern bool parameter_of_template_p (tree, tree); 5134 extern void init_template_processing (void); 5135 extern void print_template_statistics (void); 5136 bool template_template_parameter_p (const_tree); 5137 extern bool primary_template_instantiation_p (const_tree); 5138 extern tree get_primary_template_innermost_parameters (const_tree); 5139 extern tree get_template_parms_at_level (tree, int); 5140 extern tree get_template_innermost_arguments (const_tree); 5141 extern tree get_template_argument_pack_elems (const_tree); 5142 extern tree get_function_template_decl (const_tree); 5143 extern tree resolve_nondeduced_context (tree); 5144 extern hashval_t iterative_hash_template_arg (tree arg, hashval_t val); 5145 5146 /* in repo.c */ 5147 extern void init_repo (void); 5148 extern int repo_emit_p (tree); 5149 extern bool repo_export_class_p (const_tree); 5150 extern void finish_repo (void); 5151 5152 /* in rtti.c */ 5153 /* A vector of all tinfo decls that haven't been emitted yet. */ 5154 extern GTY(()) VEC(tree,gc) *unemitted_tinfo_decls; 5155 5156 extern void init_rtti_processing (void); 5157 extern tree build_typeid (tree); 5158 extern tree get_tinfo_decl (tree); 5159 extern tree get_typeid (tree); 5160 extern tree build_headof (tree); 5161 extern tree build_dynamic_cast (tree, tree, tsubst_flags_t); 5162 extern void emit_support_tinfos (void); 5163 extern bool emit_tinfo_decl (tree); 5164 5165 /* in search.c */ 5166 extern bool accessible_base_p (tree, tree, bool); 5167 extern tree lookup_base (tree, tree, base_access, 5168 base_kind *); 5169 extern tree dcast_base_hint (tree, tree); 5170 extern int accessible_p (tree, tree, bool); 5171 extern tree lookup_field_1 (tree, tree, bool); 5172 extern tree lookup_field (tree, tree, int, bool); 5173 extern int lookup_fnfields_1 (tree, tree); 5174 extern tree lookup_fnfields_slot (tree, tree); 5175 extern int class_method_index_for_fn (tree, tree); 5176 extern tree lookup_fnfields (tree, tree, int); 5177 extern tree lookup_member (tree, tree, int, bool); 5178 extern int look_for_overrides (tree, tree); 5179 extern void get_pure_virtuals (tree); 5180 extern void maybe_suppress_debug_info (tree); 5181 extern void note_debug_info_needed (tree); 5182 extern void print_search_statistics (void); 5183 extern void reinit_search_statistics (void); 5184 extern tree current_scope (void); 5185 extern int at_function_scope_p (void); 5186 extern bool at_class_scope_p (void); 5187 extern bool at_namespace_scope_p (void); 5188 extern tree context_for_name_lookup (tree); 5189 extern tree lookup_conversions (tree); 5190 extern tree binfo_from_vbase (tree); 5191 extern tree binfo_for_vbase (tree, tree); 5192 extern tree look_for_overrides_here (tree, tree); 5193 #define dfs_skip_bases ((tree)1) 5194 extern tree dfs_walk_all (tree, tree (*) (tree, void *), 5195 tree (*) (tree, void *), void *); 5196 extern tree dfs_walk_once (tree, tree (*) (tree, void *), 5197 tree (*) (tree, void *), void *); 5198 extern tree binfo_via_virtual (tree, tree); 5199 extern tree build_baselink (tree, tree, tree, tree); 5200 extern tree adjust_result_of_qualified_name_lookup 5201 (tree, tree, tree); 5202 extern tree copied_binfo (tree, tree); 5203 extern tree original_binfo (tree, tree); 5204 extern int shared_member_p (tree); 5205 5206 5207 /* The representation of a deferred access check. */ 5208 5209 typedef struct GTY(()) deferred_access_check { 5210 /* The base class in which the declaration is referenced. */ 5211 tree binfo; 5212 /* The declaration whose access must be checked. */ 5213 tree decl; 5214 /* The declaration that should be used in the error message. */ 5215 tree diag_decl; 5216 } deferred_access_check; 5217 DEF_VEC_O(deferred_access_check); 5218 DEF_VEC_ALLOC_O(deferred_access_check,gc); 5219 5220 /* in semantics.c */ 5221 extern void push_deferring_access_checks (deferring_kind); 5222 extern void resume_deferring_access_checks (void); 5223 extern void stop_deferring_access_checks (void); 5224 extern void pop_deferring_access_checks (void); 5225 extern VEC (deferred_access_check,gc)* get_deferred_access_checks (void); 5226 extern void pop_to_parent_deferring_access_checks (void); 5227 extern void perform_access_checks (VEC (deferred_access_check,gc)*); 5228 extern void perform_deferred_access_checks (void); 5229 extern void perform_or_defer_access_check (tree, tree, tree); 5230 extern bool speculative_access_check (tree, tree, tree, bool); 5231 extern int stmts_are_full_exprs_p (void); 5232 extern void init_cp_semantics (void); 5233 extern tree do_poplevel (tree); 5234 extern void add_decl_expr (tree); 5235 extern tree finish_expr_stmt (tree); 5236 extern tree begin_if_stmt (void); 5237 extern void finish_if_stmt_cond (tree, tree); 5238 extern tree finish_then_clause (tree); 5239 extern void begin_else_clause (tree); 5240 extern void finish_else_clause (tree); 5241 extern void finish_if_stmt (tree); 5242 extern tree begin_while_stmt (void); 5243 extern void finish_while_stmt_cond (tree, tree); 5244 extern void finish_while_stmt (tree); 5245 extern tree begin_do_stmt (void); 5246 extern void finish_do_body (tree); 5247 extern void finish_do_stmt (tree, tree); 5248 extern tree finish_return_stmt (tree); 5249 extern tree begin_for_scope (tree *); 5250 extern tree begin_for_stmt (tree, tree); 5251 extern void finish_for_init_stmt (tree); 5252 extern void finish_for_cond (tree, tree); 5253 extern void finish_for_expr (tree, tree); 5254 extern void finish_for_stmt (tree); 5255 extern tree begin_range_for_stmt (tree, tree); 5256 extern void finish_range_for_decl (tree, tree, tree); 5257 extern void finish_range_for_stmt (tree); 5258 extern tree finish_break_stmt (void); 5259 extern tree finish_continue_stmt (void); 5260 extern tree begin_switch_stmt (void); 5261 extern void finish_switch_cond (tree, tree); 5262 extern void finish_switch_stmt (tree); 5263 extern tree finish_goto_stmt (tree); 5264 extern tree begin_try_block (void); 5265 extern void finish_try_block (tree); 5266 extern void finish_handler_sequence (tree); 5267 extern tree begin_function_try_block (tree *); 5268 extern void finish_function_try_block (tree); 5269 extern void finish_function_handler_sequence (tree, tree); 5270 extern void finish_cleanup_try_block (tree); 5271 extern tree begin_handler (void); 5272 extern void finish_handler_parms (tree, tree); 5273 extern void finish_handler (tree); 5274 extern void finish_cleanup (tree, tree); 5275 extern bool literal_type_p (tree); 5276 extern tree validate_constexpr_fundecl (tree); 5277 extern tree register_constexpr_fundef (tree, tree); 5278 extern bool check_constexpr_ctor_body (tree, tree); 5279 extern tree ensure_literal_type_for_constexpr_object (tree); 5280 extern bool potential_constant_expression (tree); 5281 extern bool potential_rvalue_constant_expression (tree); 5282 extern bool require_potential_constant_expression (tree); 5283 extern bool require_potential_rvalue_constant_expression (tree); 5284 extern tree cxx_constant_value (tree); 5285 extern tree maybe_constant_value (tree); 5286 extern tree maybe_constant_init (tree); 5287 extern bool is_sub_constant_expr (tree); 5288 extern bool reduced_constant_expression_p (tree); 5289 extern VEC(tree,heap)* cx_error_context (void); 5290 5291 enum { 5292 BCS_NO_SCOPE = 1, 5293 BCS_TRY_BLOCK = 2, 5294 BCS_FN_BODY = 4 5295 }; 5296 extern tree begin_compound_stmt (unsigned int); 5297 5298 extern void finish_compound_stmt (tree); 5299 extern tree finish_asm_stmt (int, tree, tree, tree, tree, 5300 tree); 5301 extern tree finish_label_stmt (tree); 5302 extern void finish_label_decl (tree); 5303 extern tree finish_parenthesized_expr (tree); 5304 extern tree finish_non_static_data_member (tree, tree, tree); 5305 extern tree begin_stmt_expr (void); 5306 extern tree finish_stmt_expr_expr (tree, tree); 5307 extern tree finish_stmt_expr (tree, bool); 5308 extern tree stmt_expr_value_expr (tree); 5309 bool empty_expr_stmt_p (tree); 5310 extern tree perform_koenig_lookup (tree, VEC(tree,gc) *, bool); 5311 extern tree finish_call_expr (tree, VEC(tree,gc) **, bool, 5312 bool, tsubst_flags_t); 5313 extern tree finish_increment_expr (tree, enum tree_code); 5314 extern tree finish_this_expr (void); 5315 extern tree finish_pseudo_destructor_expr (tree, tree, tree); 5316 extern tree finish_unary_op_expr (enum tree_code, tree); 5317 extern tree finish_compound_literal (tree, tree); 5318 extern tree finish_fname (tree); 5319 extern void finish_translation_unit (void); 5320 extern tree finish_template_type_parm (tree, tree); 5321 extern tree finish_template_template_parm (tree, tree); 5322 extern tree begin_class_definition (tree, tree); 5323 extern void finish_template_decl (tree); 5324 extern tree finish_template_type (tree, tree, int); 5325 extern tree finish_base_specifier (tree, tree, bool); 5326 extern void finish_member_declaration (tree); 5327 extern tree finish_id_expression (tree, tree, tree, 5328 cp_id_kind *, 5329 bool, bool, bool *, 5330 bool, bool, bool, bool, 5331 const char **, 5332 location_t); 5333 extern tree finish_typeof (tree); 5334 extern tree finish_offsetof (tree); 5335 extern void finish_decl_cleanup (tree, tree); 5336 extern void finish_eh_cleanup (tree); 5337 extern void emit_associated_thunks (tree); 5338 extern void finish_mem_initializers (tree); 5339 extern tree check_template_template_default_arg (tree); 5340 extern bool expand_or_defer_fn_1 (tree); 5341 extern void expand_or_defer_fn (tree); 5342 extern void add_typedef_to_current_template_for_access_check (tree, tree, 5343 location_t); 5344 extern void check_accessibility_of_qualified_id (tree, tree, tree); 5345 extern tree finish_qualified_id_expr (tree, tree, bool, bool, 5346 bool, bool); 5347 extern void simplify_aggr_init_expr (tree *); 5348 extern void finalize_nrv (tree *, tree, tree); 5349 extern void note_decl_for_pch (tree); 5350 extern tree finish_omp_clauses (tree); 5351 extern void finish_omp_threadprivate (tree); 5352 extern tree begin_omp_structured_block (void); 5353 extern tree finish_omp_structured_block (tree); 5354 extern tree begin_omp_parallel (void); 5355 extern tree finish_omp_parallel (tree, tree); 5356 extern tree begin_omp_task (void); 5357 extern tree finish_omp_task (tree, tree); 5358 extern tree finish_omp_for (location_t, tree, tree, 5359 tree, tree, tree, tree, tree); 5360 extern void finish_omp_atomic (enum tree_code, tree, tree); 5361 extern void finish_omp_barrier (void); 5362 extern void finish_omp_flush (void); 5363 extern void finish_omp_taskwait (void); 5364 extern bool cxx_omp_create_clause_info (tree, tree, bool, bool, bool); 5365 extern tree baselink_for_fns (tree); 5366 extern void finish_static_assert (tree, tree, location_t, 5367 bool); 5368 extern tree describable_type (tree); 5369 extern tree finish_decltype_type (tree, bool, tsubst_flags_t); 5370 extern tree finish_trait_expr (enum cp_trait_kind, tree, tree); 5371 extern tree build_lambda_expr (void); 5372 extern tree build_lambda_object (tree); 5373 extern tree begin_lambda_type (tree); 5374 extern tree lambda_capture_field_type (tree); 5375 extern tree lambda_return_type (tree); 5376 extern tree lambda_function (tree); 5377 extern void apply_lambda_return_type (tree, tree); 5378 extern tree add_capture (tree, tree, tree, bool, bool); 5379 extern tree add_default_capture (tree, tree, tree); 5380 extern void register_capture_members (tree); 5381 extern tree lambda_expr_this_capture (tree); 5382 extern tree nonlambda_method_basetype (void); 5383 extern void maybe_add_lambda_conv_op (tree); 5384 5385 /* in tree.c */ 5386 void cp_free_lang_data (tree t); 5387 extern tree force_target_expr (tree, tree); 5388 extern tree build_target_expr_with_type (tree, tree); 5389 extern void lang_check_failed (const char *, int, 5390 const char *) ATTRIBUTE_NORETURN; 5391 extern tree stabilize_expr (tree, tree *); 5392 extern void stabilize_call (tree, tree *); 5393 extern void stabilize_aggr_init (tree, tree *); 5394 extern bool stabilize_init (tree, tree *); 5395 extern tree add_stmt_to_compound (tree, tree); 5396 extern void init_tree (void); 5397 extern bool pod_type_p (const_tree); 5398 extern bool layout_pod_type_p (const_tree); 5399 extern bool std_layout_type_p (const_tree); 5400 extern bool trivial_type_p (const_tree); 5401 extern bool trivially_copyable_p (const_tree); 5402 extern bool type_has_nontrivial_default_init (const_tree); 5403 extern bool type_has_nontrivial_copy_init (const_tree); 5404 extern bool class_tmpl_impl_spec_p (const_tree); 5405 extern int zero_init_p (const_tree); 5406 extern tree strip_typedefs (tree); 5407 extern tree copy_binfo (tree, tree, tree, 5408 tree *, int); 5409 extern int member_p (const_tree); 5410 extern cp_lvalue_kind real_lvalue_p (const_tree); 5411 extern cp_lvalue_kind lvalue_kind (const_tree); 5412 extern bool lvalue_or_rvalue_with_address_p (const_tree); 5413 extern bool builtin_valid_in_constant_expr_p (const_tree); 5414 extern tree build_min (enum tree_code, tree, ...); 5415 extern tree build_min_nt (enum tree_code, ...); 5416 extern tree build_min_non_dep (enum tree_code, tree, ...); 5417 extern tree build_min_non_dep_call_vec (tree, tree, VEC(tree,gc) *); 5418 extern tree build_cplus_new (tree, tree); 5419 extern tree build_aggr_init_expr (tree, tree); 5420 extern tree get_target_expr (tree); 5421 extern tree build_cplus_array_type (tree, tree); 5422 extern tree build_array_of_n_type (tree, int); 5423 extern tree build_array_copy (tree); 5424 extern tree build_vec_init_expr (tree, tree); 5425 extern void diagnose_non_constexpr_vec_init (tree); 5426 extern tree hash_tree_cons (tree, tree, tree); 5427 extern tree hash_tree_chain (tree, tree); 5428 extern tree build_qualified_name (tree, tree, tree, bool); 5429 extern int is_overloaded_fn (tree); 5430 extern tree get_fns (tree); 5431 extern tree get_first_fn (tree); 5432 extern tree ovl_cons (tree, tree); 5433 extern tree build_overload (tree, tree); 5434 extern bool non_static_member_function_p (tree); 5435 extern const char *cxx_printable_name (tree, int); 5436 extern const char *cxx_printable_name_translate (tree, int); 5437 extern tree build_exception_variant (tree, tree); 5438 extern tree bind_template_template_parm (tree, tree); 5439 extern tree array_type_nelts_total (tree); 5440 extern tree array_type_nelts_top (tree); 5441 extern tree break_out_target_exprs (tree); 5442 extern tree get_type_decl (tree); 5443 extern tree decl_namespace_context (tree); 5444 extern bool decl_anon_ns_mem_p (const_tree); 5445 extern tree lvalue_type (tree); 5446 extern tree error_type (tree); 5447 extern int varargs_function_p (const_tree); 5448 extern bool really_overloaded_fn (tree); 5449 extern bool cp_tree_equal (tree, tree); 5450 extern tree no_linkage_check (tree, bool); 5451 extern void debug_binfo (tree); 5452 extern tree build_dummy_object (tree); 5453 extern tree maybe_dummy_object (tree, tree *); 5454 extern int is_dummy_object (const_tree); 5455 extern const struct attribute_spec cxx_attribute_table[]; 5456 extern tree make_ptrmem_cst (tree, tree); 5457 extern tree cp_build_type_attribute_variant (tree, tree); 5458 extern tree cp_build_reference_type (tree, bool); 5459 extern tree move (tree); 5460 extern tree cp_build_qualified_type_real (tree, int, tsubst_flags_t); 5461 #define cp_build_qualified_type(TYPE, QUALS) \ 5462 cp_build_qualified_type_real ((TYPE), (QUALS), tf_warning_or_error) 5463 extern bool cv_qualified_p (const_tree); 5464 extern tree cv_unqualified (tree); 5465 extern special_function_kind special_function_p (const_tree); 5466 extern int count_trees (tree); 5467 extern int char_type_p (tree); 5468 extern void verify_stmt_tree (tree); 5469 extern linkage_kind decl_linkage (tree); 5470 extern duration_kind decl_storage_duration (tree); 5471 extern tree cp_walk_subtrees (tree*, int*, walk_tree_fn, 5472 void*, struct pointer_set_t*); 5473 #define cp_walk_tree(a,b,c,d) \ 5474 walk_tree_1 (a, b, c, d, cp_walk_subtrees) 5475 #define cp_walk_tree_without_duplicates(a,b,c) \ 5476 walk_tree_without_duplicates_1 (a, b, c, cp_walk_subtrees) 5477 extern tree fold_if_not_in_template (tree); 5478 extern tree rvalue (tree); 5479 extern tree convert_bitfield_to_declared_type (tree); 5480 extern tree cp_save_expr (tree); 5481 extern bool cast_valid_in_integral_constant_expression_p (tree); 5482 extern bool cxx_type_hash_eq (const_tree, const_tree); 5483 5484 extern void cxx_print_statistics (void); 5485 5486 /* in ptree.c */ 5487 extern void cxx_print_xnode (FILE *, tree, int); 5488 extern void cxx_print_decl (FILE *, tree, int); 5489 extern void cxx_print_type (FILE *, tree, int); 5490 extern void cxx_print_identifier (FILE *, tree, int); 5491 extern void cxx_print_error_function (diagnostic_context *, 5492 const char *, 5493 struct diagnostic_info *); 5494 5495 /* in typeck.c */ 5496 extern bool cxx_mark_addressable (tree); 5497 extern int string_conv_p (const_tree, const_tree, int); 5498 extern tree cp_truthvalue_conversion (tree); 5499 extern tree condition_conversion (tree); 5500 extern tree require_complete_type (tree); 5501 extern tree require_complete_type_sfinae (tree, tsubst_flags_t); 5502 extern tree complete_type (tree); 5503 extern tree complete_type_or_else (tree, tree); 5504 extern tree complete_type_or_maybe_complain (tree, tree, tsubst_flags_t); 5505 extern int type_unknown_p (const_tree); 5506 enum { ce_derived, ce_normal, ce_exact }; 5507 extern bool comp_except_specs (const_tree, const_tree, int); 5508 extern bool comptypes (tree, tree, int); 5509 extern bool same_type_ignoring_top_level_qualifiers_p (tree, tree); 5510 extern bool compparms (const_tree, const_tree); 5511 extern int comp_cv_qualification (const_tree, const_tree); 5512 extern int comp_cv_qual_signature (tree, tree); 5513 extern tree cxx_sizeof_or_alignof_expr (tree, enum tree_code, bool); 5514 extern tree cxx_sizeof_or_alignof_type (tree, enum tree_code, bool); 5515 extern tree cxx_sizeof_nowarn (tree); 5516 extern tree is_bitfield_expr_with_lowered_type (const_tree); 5517 extern tree unlowered_expr_type (const_tree); 5518 extern tree decay_conversion (tree); 5519 extern tree build_class_member_access_expr (tree, tree, tree, bool, 5520 tsubst_flags_t); 5521 extern tree finish_class_member_access_expr (tree, tree, bool, 5522 tsubst_flags_t); 5523 extern tree build_x_indirect_ref (tree, ref_operator, 5524 tsubst_flags_t); 5525 extern tree cp_build_indirect_ref (tree, ref_operator, 5526 tsubst_flags_t); 5527 extern tree build_array_ref (location_t, tree, tree); 5528 extern tree cp_build_array_ref (location_t, tree, tree, 5529 tsubst_flags_t); 5530 extern tree get_member_function_from_ptrfunc (tree *, tree); 5531 extern tree cp_build_function_call (tree, tree, tsubst_flags_t); 5532 extern tree cp_build_function_call_nary (tree, tsubst_flags_t, ...) 5533 ATTRIBUTE_SENTINEL; 5534 extern tree cp_build_function_call_vec (tree, VEC(tree,gc) **, 5535 tsubst_flags_t); 5536 extern tree build_x_binary_op (enum tree_code, tree, 5537 enum tree_code, tree, 5538 enum tree_code, bool *, 5539 tsubst_flags_t); 5540 extern tree build_x_array_ref (tree, tree, tsubst_flags_t); 5541 extern tree build_x_unary_op (enum tree_code, tree, 5542 tsubst_flags_t); 5543 extern tree cp_build_addr_expr (tree, tsubst_flags_t); 5544 extern tree cp_build_addr_expr_strict (tree, tsubst_flags_t); 5545 extern tree cp_build_unary_op (enum tree_code, tree, int, 5546 tsubst_flags_t); 5547 extern tree unary_complex_lvalue (enum tree_code, tree); 5548 extern tree build_x_conditional_expr (tree, tree, tree, 5549 tsubst_flags_t); 5550 extern tree build_x_compound_expr_from_list (tree, expr_list_kind, 5551 tsubst_flags_t); 5552 extern tree build_x_compound_expr_from_vec (VEC(tree,gc) *, const char *); 5553 extern tree build_x_compound_expr (tree, tree, tsubst_flags_t); 5554 extern tree build_compound_expr (location_t, tree, tree); 5555 extern tree cp_build_compound_expr (tree, tree, tsubst_flags_t); 5556 extern tree build_static_cast (tree, tree, tsubst_flags_t); 5557 extern tree build_reinterpret_cast (tree, tree, tsubst_flags_t); 5558 extern tree build_const_cast (tree, tree, tsubst_flags_t); 5559 extern tree build_c_cast (location_t, tree, tree); 5560 extern tree cp_build_c_cast (tree, tree, tsubst_flags_t); 5561 extern tree build_x_modify_expr (tree, enum tree_code, tree, 5562 tsubst_flags_t); 5563 extern tree cp_build_modify_expr (tree, enum tree_code, tree, 5564 tsubst_flags_t); 5565 extern tree convert_for_initialization (tree, tree, tree, int, 5566 impl_conv_rhs, tree, int, 5567 tsubst_flags_t); 5568 extern int comp_ptr_ttypes (tree, tree); 5569 extern bool comp_ptr_ttypes_const (tree, tree); 5570 extern bool error_type_p (const_tree); 5571 extern int ptr_reasonably_similar (const_tree, const_tree); 5572 extern tree build_ptrmemfunc (tree, tree, int, bool, 5573 tsubst_flags_t); 5574 extern int cp_type_quals (const_tree); 5575 extern int type_memfn_quals (const_tree); 5576 extern tree apply_memfn_quals (tree, cp_cv_quals); 5577 extern bool cp_has_mutable_p (const_tree); 5578 extern bool at_least_as_qualified_p (const_tree, const_tree); 5579 extern void cp_apply_type_quals_to_decl (int, tree); 5580 extern tree build_ptrmemfunc1 (tree, tree, tree); 5581 extern void expand_ptrmemfunc_cst (tree, tree *, tree *); 5582 extern tree type_after_usual_arithmetic_conversions (tree, tree); 5583 extern tree common_pointer_type (tree, tree); 5584 extern tree composite_pointer_type (tree, tree, tree, tree, 5585 composite_pointer_operation, 5586 tsubst_flags_t); 5587 extern tree merge_types (tree, tree); 5588 extern tree strip_array_domain (tree); 5589 extern tree check_return_expr (tree, bool *); 5590 extern tree cp_build_binary_op (location_t, 5591 enum tree_code, tree, tree, 5592 tsubst_flags_t); 5593 #define cxx_sizeof(T) cxx_sizeof_or_alignof_type (T, SIZEOF_EXPR, true) 5594 extern tree build_ptrmemfunc_access_expr (tree, tree); 5595 extern tree build_address (tree); 5596 extern tree build_typed_address (tree, tree); 5597 extern tree build_nop (tree, tree); 5598 extern tree non_reference (tree); 5599 extern tree lookup_anon_field (tree, tree); 5600 extern bool invalid_nonstatic_memfn_p (const_tree, tsubst_flags_t); 5601 extern tree convert_member_func_to_ptr (tree, tree); 5602 extern tree convert_ptrmem (tree, tree, bool, bool, 5603 tsubst_flags_t); 5604 extern int lvalue_or_else (tree, enum lvalue_use, 5605 tsubst_flags_t); 5606 extern void check_template_keyword (tree); 5607 5608 /* in typeck2.c */ 5609 extern void require_complete_eh_spec_types (tree, tree); 5610 extern void cxx_incomplete_type_diagnostic (const_tree, const_tree, diagnostic_t); 5611 #undef cxx_incomplete_type_error 5612 extern void cxx_incomplete_type_error (const_tree, const_tree); 5613 #define cxx_incomplete_type_error(V,T) \ 5614 (cxx_incomplete_type_diagnostic ((V), (T), DK_ERROR)) 5615 extern tree error_not_base_type (tree, tree); 5616 extern tree binfo_or_else (tree, tree); 5617 extern void cxx_readonly_error (tree, enum lvalue_use); 5618 extern void complete_type_check_abstract (tree); 5619 extern int abstract_virtuals_error (tree, tree); 5620 5621 extern tree store_init_value (tree, tree, int); 5622 extern void check_narrowing (tree, tree); 5623 extern tree digest_init (tree, tree); 5624 extern tree digest_init_flags (tree, tree, int); 5625 extern tree build_scoped_ref (tree, tree, tree *); 5626 extern tree build_x_arrow (tree); 5627 extern tree build_m_component_ref (tree, tree); 5628 extern tree build_functional_cast (tree, tree, tsubst_flags_t); 5629 extern tree add_exception_specifier (tree, tree, int); 5630 extern tree merge_exception_specifiers (tree, tree); 5631 5632 /* in mangle.c */ 5633 extern void init_mangle (void); 5634 extern void mangle_decl (tree); 5635 extern const char *mangle_type_string (tree); 5636 extern tree mangle_typeinfo_for_type (tree); 5637 extern tree mangle_typeinfo_string_for_type (tree); 5638 extern tree mangle_vtbl_for_type (tree); 5639 extern tree mangle_vtt_for_type (tree); 5640 extern tree mangle_ctor_vtbl_for_type (tree, tree); 5641 extern tree mangle_thunk (tree, int, tree, tree); 5642 extern tree mangle_conv_op_name_for_type (tree); 5643 extern tree mangle_guard_variable (tree); 5644 extern tree mangle_ref_init_variable (tree); 5645 5646 /* in dump.c */ 5647 extern bool cp_dump_tree (void *, tree); 5648 5649 /* In cp/cp-objcp-common.c. */ 5650 5651 extern alias_set_type cxx_get_alias_set (tree); 5652 extern bool cxx_warn_unused_global_decl (const_tree); 5653 extern size_t cp_tree_size (enum tree_code); 5654 extern bool cp_var_mod_type_p (tree, tree); 5655 extern void cxx_initialize_diagnostics (diagnostic_context *); 5656 extern int cxx_types_compatible_p (tree, tree); 5657 extern void init_shadowed_var_for_decl (void); 5658 5659 /* LIPO support. */ 5660 extern bool cp_is_compiler_generated_type (tree); 5661 extern void cp_clear_global_name_bindings (tree); 5662 extern bool 5663 cp_is_non_sharable_global_decl (tree, void *); 5664 extern void cp_lipo_dup_lang_type (tree, tree); 5665 extern void cp_lipo_copy_lang_type (tree, tree); 5666 extern int cp_get_lang_decl_size (tree); 5667 extern int cp_cmp_lang_type (tree, tree); 5668 extern void cp_add_built_in_decl (tree); 5669 extern void cp_save_built_in_decl_pre_parsing (void); 5670 extern void cp_restore_built_in_decl_pre_parsing (void); 5671 extern void cp_save_built_in_decl_post_parsing (void); 5672 extern void cp_restore_built_in_decl_post_parsing (void); 5673 5674 5675 /* in cp-gimplify.c */ 5676 extern int cp_gimplify_expr (tree *, gimple_seq *, 5677 gimple_seq *); 5678 extern void cp_genericize (tree); 5679 extern enum omp_clause_default_kind cxx_omp_predetermined_sharing (tree); 5680 extern tree cxx_omp_clause_default_ctor (tree, tree, tree); 5681 extern tree cxx_omp_clause_copy_ctor (tree, tree, tree); 5682 extern tree cxx_omp_clause_assign_op (tree, tree, tree); 5683 extern tree cxx_omp_clause_dtor (tree, tree); 5684 extern void cxx_omp_finish_clause (tree); 5685 extern bool cxx_omp_privatize_by_reference (const_tree); 5686 5687 /* in name-lookup.c */ 5688 extern void suggest_alternatives_for (location_t, tree); 5689 5690 /* -- end of C++ */ 5691 5692 #endif /* ! GCC_CP_TREE_H */ 5693
