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@cygnus.com) 6 7This file is part of GCC. 8 9GCC is free software; you can redistribute it and/or modify 10it under the terms of the GNU General Public License as published by 11the Free Software Foundation; either version 3, or (at your option) 12any later version. 13 14GCC is distributed in the hope that it will be useful, 15but WITHOUT ANY WARRANTY; without even the implied warranty of 16MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17GNU General Public License for more details. 18 19You should have received a copy of the GNU General Public License 20along 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 31/* In order for the format checking to accept the C++ front end 32 diagnostic framework extensions, you must include this file before 33 diagnostic-core.h, not after. We override the definition of GCC_DIAG_STYLE 34 in c-common.h. */ 35#undef GCC_DIAG_STYLE 36#define GCC_DIAG_STYLE __gcc_cxxdiag__ 37#if defined(GCC_DIAGNOSTIC_CORE_H) || defined (GCC_C_COMMON_H) 38#error \ 39In order for the format checking to accept the C++ front end diagnostic \ 40framework extensions, you must include this file before diagnostic-core.h and \ 41c-common.h, not after. 42#endif 43#include "c-family/c-common.h" 44#include "diagnostic.h" 45 46#include "name-lookup.h" 47 48/* Usage of TREE_LANG_FLAG_?: 49 0: IDENTIFIER_MARKED (IDENTIFIER_NODEs) 50 NEW_EXPR_USE_GLOBAL (in NEW_EXPR). 51 DELETE_EXPR_USE_GLOBAL (in DELETE_EXPR). 52 COMPOUND_EXPR_OVERLOADED (in COMPOUND_EXPR). 53 TREE_INDIRECT_USING (in NAMESPACE_DECL). 54 CLEANUP_P (in TRY_BLOCK) 55 AGGR_INIT_VIA_CTOR_P (in AGGR_INIT_EXPR) 56 PTRMEM_OK_P (in ADDR_EXPR, OFFSET_REF) 57 PAREN_STRING_LITERAL (in STRING_CST) 58 DECL_PRETTY_FUNCTION_P (in VAR_DECL) 59 KOENIG_LOOKUP_P (in CALL_EXPR) 60 STATEMENT_LIST_NO_SCOPE (in STATEMENT_LIST). 61 EXPR_STMT_STMT_EXPR_RESULT (in EXPR_STMT) 62 STMT_EXPR_NO_SCOPE (in STMT_EXPR) 63 BIND_EXPR_TRY_BLOCK (in BIND_EXPR) 64 TYPENAME_IS_ENUM_P (in TYPENAME_TYPE) 65 REFERENCE_REF_P (in INDIRECT_EXPR) 66 QUALIFIED_NAME_IS_TEMPLATE (in SCOPE_REF) 67 OMP_FOR_GIMPLIFYING_P (in OMP_FOR) 68 BASELINK_QUALIFIED_P (in BASELINK) 69 TARGET_EXPR_IMPLICIT_P (in TARGET_EXPR) 70 TEMPLATE_PARM_PARAMETER_PACK (in TEMPLATE_PARM_INDEX) 71 ATTR_IS_DEPENDENT (in the TREE_LIST for an attribute) 72 CONSTRUCTOR_IS_DIRECT_INIT (in CONSTRUCTOR) 73 LAMBDA_EXPR_CAPTURES_THIS_P (in LAMBDA_EXPR) 74 DECLTYPE_FOR_LAMBDA_CAPTURE (in DECLTYPE_TYPE) 75 VEC_INIT_EXPR_IS_CONSTEXPR (in VEC_INIT_EXPR) 76 1: IDENTIFIER_VIRTUAL_P (in IDENTIFIER_NODE) 77 TI_PENDING_TEMPLATE_FLAG. 78 TEMPLATE_PARMS_FOR_INLINE. 79 DELETE_EXPR_USE_VEC (in DELETE_EXPR). 80 (TREE_CALLS_NEW) (in _EXPR or _REF) (commented-out). 81 ICS_ELLIPSIS_FLAG (in _CONV) 82 DECL_INITIALIZED_P (in VAR_DECL) 83 TYPENAME_IS_CLASS_P (in TYPENAME_TYPE) 84 STMT_IS_FULL_EXPR_P (in _STMT) 85 TARGET_EXPR_LIST_INIT_P (in TARGET_EXPR) 86 LAMBDA_EXPR_MUTABLE_P (in LAMBDA_EXPR) 87 DECLTYPE_FOR_LAMBDA_RETURN (in DECLTYPE_TYPE) 88 2: IDENTIFIER_OPNAME_P (in IDENTIFIER_NODE) 89 ICS_THIS_FLAG (in _CONV) 90 DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (in VAR_DECL) 91 STATEMENT_LIST_TRY_BLOCK (in STATEMENT_LIST) 92 TYPENAME_IS_RESOLVING_P (in TYPE_NAME_TYPE) 93 LAMBDA_EXPR_DEDUCE_RETURN_TYPE_P (in LAMBDA_EXPR) 94 TARGET_EXPR_DIRECT_INIT_P (in TARGET_EXPR) 95 3: (TREE_REFERENCE_EXPR) (in NON_LVALUE_EXPR) (commented-out). 96 ICS_BAD_FLAG (in _CONV) 97 FN_TRY_BLOCK_P (in TRY_BLOCK) 98 IDENTIFIER_CTOR_OR_DTOR_P (in IDENTIFIER_NODE) 99 BIND_EXPR_BODY_BLOCK (in BIND_EXPR) 100 DECL_NON_TRIVIALLY_INITIALIZED_P (in VAR_DECL) 101 4: TREE_HAS_CONSTRUCTOR (in INDIRECT_REF, SAVE_EXPR, CONSTRUCTOR, 102 or FIELD_DECL). 103 IDENTIFIER_TYPENAME_P (in IDENTIFIER_NODE) 104 DECL_TINFO_P (in VAR_DECL) 105 5: C_IS_RESERVED_WORD (in IDENTIFIER_NODE) 106 DECL_VTABLE_OR_VTT_P (in VAR_DECL) 107 6: IDENTIFIER_REPO_CHOSEN (in IDENTIFIER_NODE) 108 DECL_CONSTRUCTION_VTABLE_P (in VAR_DECL) 109 TYPE_MARKED_P (in _TYPE) 110 111 Usage of TYPE_LANG_FLAG_?: 112 0: TYPE_DEPENDENT_P 113 1: TYPE_HAS_USER_CONSTRUCTOR. 114 2: unused 115 3: TYPE_FOR_JAVA. 116 4: TYPE_HAS_NONTRIVIAL_DESTRUCTOR 117 5: CLASS_TYPE_P (in RECORD_TYPE and UNION_TYPE) 118 ENUM_FIXED_UNDERLYING_TYPE_P (in ENUMERAL_TYPE) 119 6: TYPE_DEPENDENT_P_VALID 120 121 Usage of DECL_LANG_FLAG_?: 122 0: DECL_ERROR_REPORTED (in VAR_DECL). 123 DECL_TEMPLATE_PARM_P (in PARM_DECL, CONST_DECL, TYPE_DECL, or TEMPLATE_DECL) 124 DECL_LOCAL_FUNCTION_P (in FUNCTION_DECL) 125 DECL_MUTABLE_P (in FIELD_DECL) 126 DECL_DEPENDENT_P (in USING_DECL) 127 1: C_TYPEDEF_EXPLICITLY_SIGNED (in TYPE_DECL). 128 DECL_TEMPLATE_INSTANTIATED (in a VAR_DECL or a FUNCTION_DECL) 129 DECL_MEMBER_TEMPLATE_P (in TEMPLATE_DECL) 130 FUNCTION_PARAMETER_PACK_P (in PARM_DECL) 131 2: DECL_THIS_EXTERN (in VAR_DECL or FUNCTION_DECL). 132 DECL_IMPLICIT_TYPEDEF_P (in a TYPE_DECL) 133 3: DECL_IN_AGGR_P. 134 4: DECL_C_BIT_FIELD (in a FIELD_DECL) 135 DECL_ANON_UNION_VAR_P (in a VAR_DECL) 136 DECL_SELF_REFERENCE_P (in a TYPE_DECL) 137 DECL_INVALID_OVERRIDER_P (in a FUNCTION_DECL) 138 5: DECL_INTERFACE_KNOWN. 139 6: DECL_THIS_STATIC (in VAR_DECL or FUNCTION_DECL). 140 DECL_FIELD_IS_BASE (in FIELD_DECL) 141 7: DECL_DEAD_FOR_LOCAL (in VAR_DECL). 142 DECL_THUNK_P (in a member FUNCTION_DECL) 143 DECL_NORMAL_CAPTURE_P (in FIELD_DECL) 144 8: DECL_DECLARED_CONSTEXPR_P (in VAR_DECL, FUNCTION_DECL) 145 146 Usage of language-independent fields in a language-dependent manner: 147 148 TYPE_ALIAS_SET 149 This field is used by TYPENAME_TYPEs, TEMPLATE_TYPE_PARMs, and so 150 forth as a substitute for the mark bits provided in `lang_type'. 151 At present, only the six low-order bits are used. 152 153 TYPE_LANG_SLOT_1 154 For an ENUMERAL_TYPE, this is ENUM_TEMPLATE_INFO. 155 For a FUNCTION_TYPE or METHOD_TYPE, this is TYPE_RAISES_EXCEPTIONS 156 157 BINFO_VIRTUALS 158 For a binfo, this is a TREE_LIST. There is an entry for each 159 virtual function declared either in BINFO or its direct and 160 indirect primary bases. 161 162 The BV_DELTA of each node gives the amount by which to adjust the 163 `this' pointer when calling the function. If the method is an 164 overridden version of a base class method, then it is assumed 165 that, prior to adjustment, the this pointer points to an object 166 of the base class. 167 168 The BV_VCALL_INDEX of each node, if non-NULL, gives the vtable 169 index of the vcall offset for this entry. 170 171 The BV_FN is the declaration for the virtual function itself. 172 173 If BV_LOST_PRIMARY is set, it means that this entry is for a lost 174 primary virtual base and can be left null in the vtable. 175 176 BINFO_VTABLE 177 This is an expression with POINTER_TYPE that gives the value 178 to which the vptr should be initialized. Use get_vtbl_decl_for_binfo 179 to extract the VAR_DECL for the complete vtable. 180 181 DECL_VINDEX 182 This field is NULL for a non-virtual function. For a virtual 183 function, it is eventually set to an INTEGER_CST indicating the 184 index in the vtable at which this function can be found. When 185 a virtual function is declared, but before it is known what 186 function is overridden, this field is the error_mark_node. 187 188 Temporarily, it may be set to a TREE_LIST whose TREE_VALUE is 189 the virtual function this one overrides, and whose TREE_CHAIN is 190 the old DECL_VINDEX. */ 191 192/* Language-specific tree checkers. */ 193 194#define VAR_OR_FUNCTION_DECL_CHECK(NODE) \ 195 TREE_CHECK2(NODE,VAR_DECL,FUNCTION_DECL) 196 197#define VAR_FUNCTION_OR_PARM_DECL_CHECK(NODE) \ 198 TREE_CHECK3(NODE,VAR_DECL,FUNCTION_DECL,PARM_DECL) 199 200#define VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK(NODE) \ 201 TREE_CHECK4(NODE,VAR_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL) 202 203#define BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK(NODE) \ 204 TREE_CHECK(NODE,BOUND_TEMPLATE_TEMPLATE_PARM) 205 206#if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007) 207#define THUNK_FUNCTION_CHECK(NODE) __extension__ \ 208({ __typeof (NODE) const __t = (NODE); \ 209 if (TREE_CODE (__t) != FUNCTION_DECL || !__t->decl_common.lang_specific \ 210 || !__t->decl_common.lang_specific->u.fn.thunk_p) \ 211 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, 0); \ 212 __t; }) 213#else 214#define THUNK_FUNCTION_CHECK(NODE) (NODE) 215#endif 216 217/* Language-dependent contents of an identifier. */ 218 219struct GTY(()) lang_identifier { 220 struct c_common_identifier c_common; 221 cxx_binding *namespace_bindings; 222 cxx_binding *bindings; 223 tree class_template_info; 224 tree label_value; 225}; 226 227/* In an IDENTIFIER_NODE, nonzero if this identifier is actually a 228 keyword. C_RID_CODE (node) is then the RID_* value of the keyword, 229 and C_RID_YYCODE is the token number wanted by Yacc. */ 230 231#define C_IS_RESERVED_WORD(ID) TREE_LANG_FLAG_5 (ID) 232 233#define LANG_IDENTIFIER_CAST(NODE) \ 234 ((struct lang_identifier*)IDENTIFIER_NODE_CHECK (NODE)) 235 236struct GTY(()) template_parm_index_s { 237 struct tree_common common; 238 int index; 239 int level; 240 int orig_level; 241 int num_siblings; 242 tree decl; 243}; 244typedef struct template_parm_index_s template_parm_index; 245 246struct GTY(()) ptrmem_cst { 247 struct tree_common common; 248 tree member; 249}; 250typedef struct ptrmem_cst * ptrmem_cst_t; 251 252#define IDENTIFIER_GLOBAL_VALUE(NODE) \ 253 namespace_binding ((NODE), global_namespace) 254#define SET_IDENTIFIER_GLOBAL_VALUE(NODE, VAL) \ 255 set_namespace_binding ((NODE), global_namespace, (VAL)) 256#define IDENTIFIER_NAMESPACE_VALUE(NODE) \ 257 namespace_binding ((NODE), current_namespace) 258#define SET_IDENTIFIER_NAMESPACE_VALUE(NODE, VAL) \ 259 set_namespace_binding ((NODE), current_namespace, (VAL)) 260 261#define CLEANUP_P(NODE) TREE_LANG_FLAG_0 (TRY_BLOCK_CHECK (NODE)) 262 263#define BIND_EXPR_TRY_BLOCK(NODE) \ 264 TREE_LANG_FLAG_0 (BIND_EXPR_CHECK (NODE)) 265 266/* Used to mark the block around the member initializers and cleanups. */ 267#define BIND_EXPR_BODY_BLOCK(NODE) \ 268 TREE_LANG_FLAG_3 (BIND_EXPR_CHECK (NODE)) 269#define FUNCTION_NEEDS_BODY_BLOCK(NODE) \ 270 (DECL_CONSTRUCTOR_P (NODE) || DECL_DESTRUCTOR_P (NODE)) 271 272#define STATEMENT_LIST_NO_SCOPE(NODE) \ 273 TREE_LANG_FLAG_0 (STATEMENT_LIST_CHECK (NODE)) 274#define STATEMENT_LIST_TRY_BLOCK(NODE) \ 275 TREE_LANG_FLAG_2 (STATEMENT_LIST_CHECK (NODE)) 276 277/* Nonzero if this statement should be considered a full-expression, 278 i.e., if temporaries created during this statement should have 279 their destructors run at the end of this statement. */ 280#define STMT_IS_FULL_EXPR_P(NODE) TREE_LANG_FLAG_1 ((NODE)) 281 282/* Marks the result of a statement expression. */ 283#define EXPR_STMT_STMT_EXPR_RESULT(NODE) \ 284 TREE_LANG_FLAG_0 (EXPR_STMT_CHECK (NODE)) 285 286/* Nonzero if this statement-expression does not have an associated scope. */ 287#define STMT_EXPR_NO_SCOPE(NODE) \ 288 TREE_LANG_FLAG_0 (STMT_EXPR_CHECK (NODE)) 289 290/* Returns nonzero iff TYPE1 and TYPE2 are the same type, in the usual 291 sense of `same'. */ 292#define same_type_p(TYPE1, TYPE2) \ 293 comptypes ((TYPE1), (TYPE2), COMPARE_STRICT) 294 295/* Nonzero if we are presently building a statement tree, rather 296 than expanding each statement as we encounter it. */ 297#define building_stmt_tree() (cur_stmt_list != NULL_TREE) 298 299/* Returns nonzero iff NODE is a declaration for the global function 300 `main'. */ 301#define DECL_MAIN_P(NODE) \ 302 (DECL_EXTERN_C_FUNCTION_P (NODE) \ 303 && DECL_NAME (NODE) != NULL_TREE \ 304 && MAIN_NAME_P (DECL_NAME (NODE)) \ 305 && flag_hosted) 306 307/* The overloaded FUNCTION_DECL. */ 308#define OVL_FUNCTION(NODE) \ 309 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->function) 310#define OVL_CHAIN(NODE) TREE_CHAIN (NODE) 311/* Polymorphic access to FUNCTION and CHAIN. */ 312#define OVL_CURRENT(NODE) \ 313 ((TREE_CODE (NODE) == OVERLOAD) ? OVL_FUNCTION (NODE) : (NODE)) 314#define OVL_NEXT(NODE) \ 315 ((TREE_CODE (NODE) == OVERLOAD) ? TREE_CHAIN (NODE) : NULL_TREE) 316/* If set, this was imported in a using declaration. 317 This is not to confuse with being used somewhere, which 318 is not important for this node. */ 319#define OVL_USED(NODE) TREE_USED (NODE) 320 321struct GTY(()) tree_overload { 322 struct tree_common common; 323 tree function; 324}; 325 326/* Returns true iff NODE is a BASELINK. */ 327#define BASELINK_P(NODE) \ 328 (TREE_CODE (NODE) == BASELINK) 329/* The BINFO indicating the base from which the BASELINK_FUNCTIONS came. */ 330#define BASELINK_BINFO(NODE) \ 331 (((struct tree_baselink*) BASELINK_CHECK (NODE))->binfo) 332/* The functions referred to by the BASELINK; either a FUNCTION_DECL, 333 a TEMPLATE_DECL, an OVERLOAD, or a TEMPLATE_ID_EXPR. */ 334#define BASELINK_FUNCTIONS(NODE) \ 335 (((struct tree_baselink*) BASELINK_CHECK (NODE))->functions) 336/* The BINFO in which the search for the functions indicated by this baselink 337 began. This base is used to determine the accessibility of functions 338 selected by overload resolution. */ 339#define BASELINK_ACCESS_BINFO(NODE) \ 340 (((struct tree_baselink*) BASELINK_CHECK (NODE))->access_binfo) 341/* For a type-conversion operator, the BASELINK_OPTYPE indicates the type 342 to which the conversion should occur. This value is important if 343 the BASELINK_FUNCTIONS include a template conversion operator -- 344 the BASELINK_OPTYPE can be used to determine what type the user 345 requested. */ 346#define BASELINK_OPTYPE(NODE) \ 347 (TREE_CHAIN (BASELINK_CHECK (NODE))) 348/* Nonzero if this baselink was from a qualified lookup. */ 349#define BASELINK_QUALIFIED_P(NODE) \ 350 TREE_LANG_FLAG_0 (BASELINK_CHECK (NODE)) 351 352struct GTY(()) tree_baselink { 353 struct tree_common common; 354 tree binfo; 355 tree functions; 356 tree access_binfo; 357}; 358 359/* The different kinds of ids that we encounter. */ 360 361typedef enum cp_id_kind 362{ 363 /* Not an id at all. */ 364 CP_ID_KIND_NONE, 365 /* An unqualified-id that is not a template-id. */ 366 CP_ID_KIND_UNQUALIFIED, 367 /* An unqualified-id that is a dependent name. */ 368 CP_ID_KIND_UNQUALIFIED_DEPENDENT, 369 /* An unqualified template-id. */ 370 CP_ID_KIND_TEMPLATE_ID, 371 /* A qualified-id. */ 372 CP_ID_KIND_QUALIFIED 373} cp_id_kind; 374 375 376/* The various kinds of C++0x warnings we encounter. */ 377 378typedef enum cpp0x_warn_str 379{ 380 /* extended initializer lists */ 381 CPP0X_INITIALIZER_LISTS, 382 /* explicit conversion operators */ 383 CPP0X_EXPLICIT_CONVERSION, 384 /* variadic templates */ 385 CPP0X_VARIADIC_TEMPLATES, 386 /* lambda expressions */ 387 CPP0X_LAMBDA_EXPR, 388 /* C++0x auto */ 389 CPP0X_AUTO, 390 /* scoped enums */ 391 CPP0X_SCOPED_ENUMS, 392 /* defaulted and deleted functions */ 393 CPP0X_DEFAULTED_DELETED, 394 /* inline namespaces */ 395 CPP0X_INLINE_NAMESPACES 396} cpp0x_warn_str; 397 398/* The various kinds of operation used by composite_pointer_type. */ 399 400typedef enum composite_pointer_operation 401{ 402 /* comparison */ 403 CPO_COMPARISON, 404 /* conversion */ 405 CPO_CONVERSION, 406 /* conditional expression */ 407 CPO_CONDITIONAL_EXPR 408} composite_pointer_operation; 409 410/* Possible cases of expression list used by build_x_compound_expr_from_list. */ 411typedef enum expr_list_kind { 412 ELK_INIT, /* initializer */ 413 ELK_MEM_INIT, /* member initializer */ 414 ELK_FUNC_CAST /* functional cast */ 415} expr_list_kind; 416 417/* Possible cases of implicit bad rhs conversions. */ 418typedef enum impl_conv_rhs { 419 ICR_DEFAULT_ARGUMENT, /* default argument */ 420 ICR_CONVERTING, /* converting */ 421 ICR_INIT, /* initialization */ 422 ICR_ARGPASS, /* argument passing */ 423 ICR_RETURN, /* return */ 424 ICR_ASSIGN /* assignment */ 425} impl_conv_rhs; 426 427/* Possible cases of implicit or explicit bad conversions to void. */ 428typedef enum impl_conv_void { 429 ICV_CAST, /* (explicit) conversion to void */ 430 ICV_SECOND_OF_COND, /* second operand of conditional expression */ 431 ICV_THIRD_OF_COND, /* third operand of conditional expression */ 432 ICV_RIGHT_OF_COMMA, /* right operand of comma operator */ 433 ICV_LEFT_OF_COMMA, /* left operand of comma operator */ 434 ICV_STATEMENT, /* statement */ 435 ICV_THIRD_IN_FOR /* for increment expression */ 436} impl_conv_void; 437 438/* Macros for access to language-specific slots in an identifier. */ 439 440#define IDENTIFIER_NAMESPACE_BINDINGS(NODE) \ 441 (LANG_IDENTIFIER_CAST (NODE)->namespace_bindings) 442#define IDENTIFIER_TEMPLATE(NODE) \ 443 (LANG_IDENTIFIER_CAST (NODE)->class_template_info) 444 445/* The IDENTIFIER_BINDING is the innermost cxx_binding for the 446 identifier. It's PREVIOUS is the next outermost binding. Each 447 VALUE field is a DECL for the associated declaration. Thus, 448 name lookup consists simply of pulling off the node at the front 449 of the list (modulo oddities for looking up the names of types, 450 and such.) You can use SCOPE field to determine the scope 451 that bound the name. */ 452#define IDENTIFIER_BINDING(NODE) \ 453 (LANG_IDENTIFIER_CAST (NODE)->bindings) 454 455/* TREE_TYPE only indicates on local and class scope the current 456 type. For namespace scope, the presence of a type in any namespace 457 is indicated with global_type_node, and the real type behind must 458 be found through lookup. */ 459#define IDENTIFIER_TYPE_VALUE(NODE) identifier_type_value (NODE) 460#define REAL_IDENTIFIER_TYPE_VALUE(NODE) TREE_TYPE (NODE) 461#define SET_IDENTIFIER_TYPE_VALUE(NODE,TYPE) (TREE_TYPE (NODE) = (TYPE)) 462#define IDENTIFIER_HAS_TYPE_VALUE(NODE) (IDENTIFIER_TYPE_VALUE (NODE) ? 1 : 0) 463 464#define IDENTIFIER_LABEL_VALUE(NODE) \ 465 (LANG_IDENTIFIER_CAST (NODE)->label_value) 466#define SET_IDENTIFIER_LABEL_VALUE(NODE, VALUE) \ 467 IDENTIFIER_LABEL_VALUE (NODE) = (VALUE) 468 469/* Nonzero if this identifier is used as a virtual function name somewhere 470 (optimizes searches). */ 471#define IDENTIFIER_VIRTUAL_P(NODE) TREE_LANG_FLAG_1 (NODE) 472 473/* Nonzero if this identifier is the prefix for a mangled C++ operator 474 name. */ 475#define IDENTIFIER_OPNAME_P(NODE) TREE_LANG_FLAG_2 (NODE) 476 477/* Nonzero if this identifier is the name of a type-conversion 478 operator. */ 479#define IDENTIFIER_TYPENAME_P(NODE) \ 480 TREE_LANG_FLAG_4 (NODE) 481 482/* Nonzero if this identifier is the name of a constructor or 483 destructor. */ 484#define IDENTIFIER_CTOR_OR_DTOR_P(NODE) \ 485 TREE_LANG_FLAG_3 (NODE) 486 487/* True iff NAME is the DECL_ASSEMBLER_NAME for an entity with vague 488 linkage which the prelinker has assigned to this translation 489 unit. */ 490#define IDENTIFIER_REPO_CHOSEN(NAME) \ 491 (TREE_LANG_FLAG_6 (NAME)) 492 493/* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */ 494#define C_TYPE_FIELDS_READONLY(TYPE) \ 495 (LANG_TYPE_CLASS_CHECK (TYPE)->fields_readonly) 496 497/* The tokens stored in the default argument. */ 498 499#define DEFARG_TOKENS(NODE) \ 500 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->tokens) 501#define DEFARG_INSTANTIATIONS(NODE) \ 502 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->instantiations) 503 504struct GTY (()) tree_default_arg { 505 struct tree_common common; 506 struct cp_token_cache *tokens; 507 VEC(tree,gc) *instantiations; 508}; 509 510/* The condition associated with the static assertion. This must be 511 an integral constant expression. */ 512#define STATIC_ASSERT_CONDITION(NODE) \ 513 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->condition) 514 515/* The message associated with the static assertion. This must be a 516 string constant, which will be emitted as an error message when the 517 static assert condition is false. */ 518#define STATIC_ASSERT_MESSAGE(NODE) \ 519 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->message) 520 521/* Source location information for a static assertion. */ 522#define STATIC_ASSERT_SOURCE_LOCATION(NODE) \ 523 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->location) 524 525struct GTY (()) tree_static_assert { 526 struct tree_common common; 527 tree condition; 528 tree message; 529 location_t location; 530}; 531 532struct GTY (()) tree_argument_pack_select { 533 struct tree_common common; 534 tree argument_pack; 535 int index; 536}; 537 538/* The different kinds of traits that we encounter. */ 539 540typedef enum cp_trait_kind 541{ 542 CPTK_HAS_NOTHROW_ASSIGN, 543 CPTK_HAS_NOTHROW_CONSTRUCTOR, 544 CPTK_HAS_NOTHROW_COPY, 545 CPTK_HAS_TRIVIAL_ASSIGN, 546 CPTK_HAS_TRIVIAL_CONSTRUCTOR, 547 CPTK_HAS_TRIVIAL_COPY, 548 CPTK_HAS_TRIVIAL_DESTRUCTOR, 549 CPTK_HAS_VIRTUAL_DESTRUCTOR, 550 CPTK_IS_ABSTRACT, 551 CPTK_IS_BASE_OF, 552 CPTK_IS_CLASS, 553 CPTK_IS_CONVERTIBLE_TO, 554 CPTK_IS_EMPTY, 555 CPTK_IS_ENUM, 556 CPTK_IS_POD, 557 CPTK_IS_POLYMORPHIC, 558 CPTK_IS_STD_LAYOUT, 559 CPTK_IS_TRIVIAL, 560 CPTK_IS_LITERAL_TYPE, 561 CPTK_IS_UNION 562} cp_trait_kind; 563 564/* The types that we are processing. */ 565#define TRAIT_EXPR_TYPE1(NODE) \ 566 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type1) 567 568#define TRAIT_EXPR_TYPE2(NODE) \ 569 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type2) 570 571/* The specific trait that we are processing. */ 572#define TRAIT_EXPR_KIND(NODE) \ 573 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->kind) 574 575struct GTY (()) tree_trait_expr { 576 struct tree_common common; 577 tree type1; 578 tree type2; 579 enum cp_trait_kind kind; 580}; 581 582/* Based off of TYPE_ANONYMOUS_P. */ 583#define LAMBDA_TYPE_P(NODE) \ 584 (CLASS_TYPE_P (NODE) && LAMBDANAME_P (TYPE_LINKAGE_IDENTIFIER (NODE))) 585 586/* Test if FUNCTION_DECL is a lambda function. */ 587#define LAMBDA_FUNCTION_P(FNDECL) \ 588 (DECL_OVERLOADED_OPERATOR_P (FNDECL) == CALL_EXPR \ 589 && LAMBDA_TYPE_P (CP_DECL_CONTEXT (FNDECL))) 590 591enum cp_lambda_default_capture_mode_type { 592 CPLD_NONE, 593 CPLD_COPY, 594 CPLD_REFERENCE 595}; 596 597/* The method of default capture, if any. */ 598#define LAMBDA_EXPR_DEFAULT_CAPTURE_MODE(NODE) \ 599 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->default_capture_mode) 600 601/* The capture-list, including `this'. Each capture is stored as a FIELD_DECL 602 * so that the name, type, and field are all together, whether or not it has 603 * been added to the lambda's class type. 604 TREE_LIST: 605 TREE_PURPOSE: The FIELD_DECL for this capture. 606 TREE_VALUE: The initializer. This is part of a GNU extension. */ 607#define LAMBDA_EXPR_CAPTURE_LIST(NODE) \ 608 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->capture_list) 609 610/* The node in the capture-list that holds the 'this' capture. */ 611#define LAMBDA_EXPR_THIS_CAPTURE(NODE) \ 612 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->this_capture) 613 614/* Predicate tracking whether `this' is in the effective capture set. */ 615#define LAMBDA_EXPR_CAPTURES_THIS_P(NODE) \ 616 LAMBDA_EXPR_THIS_CAPTURE(NODE) 617 618/* Predicate tracking whether the lambda was declared 'mutable'. */ 619#define LAMBDA_EXPR_MUTABLE_P(NODE) \ 620 TREE_LANG_FLAG_1 (LAMBDA_EXPR_CHECK (NODE)) 621 622/* True iff we should try to deduce the lambda return type from any return 623 statement. */ 624#define LAMBDA_EXPR_DEDUCE_RETURN_TYPE_P(NODE) \ 625 TREE_LANG_FLAG_2 (LAMBDA_EXPR_CHECK (NODE)) 626 627/* The return type in the expression. 628 * NULL_TREE indicates that none was specified. */ 629#define LAMBDA_EXPR_RETURN_TYPE(NODE) \ 630 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->return_type) 631 632/* The source location of the lambda. */ 633#define LAMBDA_EXPR_LOCATION(NODE) \ 634 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->locus) 635 636/* The mangling scope for the lambda: FUNCTION_DECL, PARM_DECL, VAR_DECL, 637 FIELD_DECL or NULL_TREE. If this is NULL_TREE, we have no linkage. */ 638#define LAMBDA_EXPR_EXTRA_SCOPE(NODE) \ 639 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->extra_scope) 640 641/* If EXTRA_SCOPE, this is the number of the lambda within that scope. */ 642#define LAMBDA_EXPR_DISCRIMINATOR(NODE) \ 643 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->discriminator) 644 645struct GTY (()) tree_lambda_expr 646{ 647 struct tree_common common; 648 location_t locus; 649 enum cp_lambda_default_capture_mode_type default_capture_mode; 650 tree capture_list; 651 tree this_capture; 652 tree return_type; 653 tree extra_scope; 654 int discriminator; 655}; 656 657/* A (typedef,context,usage location) triplet. 658 It represents a typedef used through a 659 context at a given source location. 660 e.g. 661 struct foo { 662 typedef int myint; 663 }; 664 665 struct bar { 666 foo::myint v; // #1<-- this location. 667 }; 668 669 In bar, the triplet will be (myint, foo, #1). 670 */ 671struct GTY(()) qualified_typedef_usage_s { 672 tree typedef_decl; 673 tree context; 674 location_t locus; 675}; 676typedef struct qualified_typedef_usage_s qualified_typedef_usage_t; 677DEF_VEC_O (qualified_typedef_usage_t); 678DEF_VEC_ALLOC_O (qualified_typedef_usage_t,gc); 679 680struct GTY(()) tree_template_info { 681 struct tree_common common; 682 VEC(qualified_typedef_usage_t,gc) *typedefs_needing_access_checking; 683}; 684 685enum cp_tree_node_structure_enum { 686 TS_CP_GENERIC, 687 TS_CP_IDENTIFIER, 688 TS_CP_TPI, 689 TS_CP_PTRMEM, 690 TS_CP_BINDING, 691 TS_CP_OVERLOAD, 692 TS_CP_BASELINK, 693 TS_CP_WRAPPER, 694 TS_CP_DEFAULT_ARG, 695 TS_CP_STATIC_ASSERT, 696 TS_CP_ARGUMENT_PACK_SELECT, 697 TS_CP_TRAIT_EXPR, 698 TS_CP_LAMBDA_EXPR, 699 TS_CP_TEMPLATE_INFO, 700 LAST_TS_CP_ENUM 701}; 702 703/* The resulting tree type. */ 704union GTY((desc ("cp_tree_node_structure (&%h)"), 705 chain_next ("(union lang_tree_node *)TREE_CHAIN (&%h.generic)"))) lang_tree_node { 706 union tree_node GTY ((tag ("TS_CP_GENERIC"), 707 desc ("tree_node_structure (&%h)"))) generic; 708 struct template_parm_index_s GTY ((tag ("TS_CP_TPI"))) tpi; 709 struct ptrmem_cst GTY ((tag ("TS_CP_PTRMEM"))) ptrmem; 710 struct tree_overload GTY ((tag ("TS_CP_OVERLOAD"))) overload; 711 struct tree_baselink GTY ((tag ("TS_CP_BASELINK"))) baselink; 712 struct tree_default_arg GTY ((tag ("TS_CP_DEFAULT_ARG"))) default_arg; 713 struct lang_identifier GTY ((tag ("TS_CP_IDENTIFIER"))) identifier; 714 struct tree_static_assert GTY ((tag ("TS_CP_STATIC_ASSERT"))) 715 static_assertion; 716 struct tree_argument_pack_select GTY ((tag ("TS_CP_ARGUMENT_PACK_SELECT"))) 717 argument_pack_select; 718 struct tree_trait_expr GTY ((tag ("TS_CP_TRAIT_EXPR"))) 719 trait_expression; 720 struct tree_lambda_expr GTY ((tag ("TS_CP_LAMBDA_EXPR"))) 721 lambda_expression; 722 struct tree_template_info GTY ((tag ("TS_CP_TEMPLATE_INFO"))) 723 template_info; 724}; 725 726 727enum cp_tree_index 728{ 729 CPTI_JAVA_BYTE_TYPE, 730 CPTI_JAVA_SHORT_TYPE, 731 CPTI_JAVA_INT_TYPE, 732 CPTI_JAVA_LONG_TYPE, 733 CPTI_JAVA_FLOAT_TYPE, 734 CPTI_JAVA_DOUBLE_TYPE, 735 CPTI_JAVA_CHAR_TYPE, 736 CPTI_JAVA_BOOLEAN_TYPE, 737 738 CPTI_WCHAR_DECL, 739 CPTI_VTABLE_ENTRY_TYPE, 740 CPTI_DELTA_TYPE, 741 CPTI_VTABLE_INDEX_TYPE, 742 CPTI_CLEANUP_TYPE, 743 CPTI_VTT_PARM_TYPE, 744 745 CPTI_CLASS_TYPE, 746 CPTI_UNKNOWN_TYPE, 747 CPTI_INIT_LIST_TYPE, 748 CPTI_VTBL_TYPE, 749 CPTI_VTBL_PTR_TYPE, 750 CPTI_STD, 751 CPTI_ABI, 752 CPTI_CONST_TYPE_INFO_TYPE, 753 CPTI_TYPE_INFO_PTR_TYPE, 754 CPTI_ABORT_FNDECL, 755 CPTI_GLOBAL_DELETE_FNDECL, 756 CPTI_AGGR_TAG, 757 758 CPTI_CTOR_IDENTIFIER, 759 CPTI_COMPLETE_CTOR_IDENTIFIER, 760 CPTI_BASE_CTOR_IDENTIFIER, 761 CPTI_DTOR_IDENTIFIER, 762 CPTI_COMPLETE_DTOR_IDENTIFIER, 763 CPTI_BASE_DTOR_IDENTIFIER, 764 CPTI_DELETING_DTOR_IDENTIFIER, 765 CPTI_DELTA_IDENTIFIER, 766 CPTI_IN_CHARGE_IDENTIFIER, 767 CPTI_VTT_PARM_IDENTIFIER, 768 CPTI_NELTS_IDENTIFIER, 769 CPTI_THIS_IDENTIFIER, 770 CPTI_PFN_IDENTIFIER, 771 CPTI_VPTR_IDENTIFIER, 772 CPTI_STD_IDENTIFIER, 773 774 CPTI_LANG_NAME_C, 775 CPTI_LANG_NAME_CPLUSPLUS, 776 CPTI_LANG_NAME_JAVA, 777 778 CPTI_EMPTY_EXCEPT_SPEC, 779 CPTI_NOEXCEPT_TRUE_SPEC, 780 CPTI_NOEXCEPT_FALSE_SPEC, 781 CPTI_JCLASS, 782 CPTI_TERMINATE, 783 CPTI_CALL_UNEXPECTED, 784 CPTI_ATEXIT_FN_PTR_TYPE, 785 CPTI_ATEXIT, 786 CPTI_DSO_HANDLE, 787 CPTI_DCAST, 788 789 CPTI_KEYED_CLASSES, 790 791 CPTI_NULLPTR, 792 CPTI_NULLPTR_TYPE, 793 794 CPTI_MAX 795}; 796 797extern GTY(()) tree cp_global_trees[CPTI_MAX]; 798 799#define java_byte_type_node cp_global_trees[CPTI_JAVA_BYTE_TYPE] 800#define java_short_type_node cp_global_trees[CPTI_JAVA_SHORT_TYPE] 801#define java_int_type_node cp_global_trees[CPTI_JAVA_INT_TYPE] 802#define java_long_type_node cp_global_trees[CPTI_JAVA_LONG_TYPE] 803#define java_float_type_node cp_global_trees[CPTI_JAVA_FLOAT_TYPE] 804#define java_double_type_node cp_global_trees[CPTI_JAVA_DOUBLE_TYPE] 805#define java_char_type_node cp_global_trees[CPTI_JAVA_CHAR_TYPE] 806#define java_boolean_type_node cp_global_trees[CPTI_JAVA_BOOLEAN_TYPE] 807 808#define wchar_decl_node cp_global_trees[CPTI_WCHAR_DECL] 809#define vtable_entry_type cp_global_trees[CPTI_VTABLE_ENTRY_TYPE] 810/* The type used to represent an offset by which to adjust the `this' 811 pointer in pointer-to-member types. */ 812#define delta_type_node cp_global_trees[CPTI_DELTA_TYPE] 813/* The type used to represent an index into the vtable. */ 814#define vtable_index_type cp_global_trees[CPTI_VTABLE_INDEX_TYPE] 815 816#define class_type_node cp_global_trees[CPTI_CLASS_TYPE] 817#define unknown_type_node cp_global_trees[CPTI_UNKNOWN_TYPE] 818#define init_list_type_node cp_global_trees[CPTI_INIT_LIST_TYPE] 819#define vtbl_type_node cp_global_trees[CPTI_VTBL_TYPE] 820#define vtbl_ptr_type_node cp_global_trees[CPTI_VTBL_PTR_TYPE] 821#define std_node cp_global_trees[CPTI_STD] 822#define abi_node cp_global_trees[CPTI_ABI] 823#define const_type_info_type_node cp_global_trees[CPTI_CONST_TYPE_INFO_TYPE] 824#define type_info_ptr_type cp_global_trees[CPTI_TYPE_INFO_PTR_TYPE] 825#define abort_fndecl cp_global_trees[CPTI_ABORT_FNDECL] 826#define global_delete_fndecl cp_global_trees[CPTI_GLOBAL_DELETE_FNDECL] 827#define current_aggr cp_global_trees[CPTI_AGGR_TAG] 828#define nullptr_node cp_global_trees[CPTI_NULLPTR] 829#define nullptr_type_node cp_global_trees[CPTI_NULLPTR_TYPE] 830 831/* We cache these tree nodes so as to call get_identifier less 832 frequently. */ 833 834/* The name of a constructor that takes an in-charge parameter to 835 decide whether or not to construct virtual base classes. */ 836#define ctor_identifier cp_global_trees[CPTI_CTOR_IDENTIFIER] 837/* The name of a constructor that constructs virtual base classes. */ 838#define complete_ctor_identifier cp_global_trees[CPTI_COMPLETE_CTOR_IDENTIFIER] 839/* The name of a constructor that does not construct virtual base classes. */ 840#define base_ctor_identifier cp_global_trees[CPTI_BASE_CTOR_IDENTIFIER] 841/* The name of a destructor that takes an in-charge parameter to 842 decide whether or not to destroy virtual base classes and whether 843 or not to delete the object. */ 844#define dtor_identifier cp_global_trees[CPTI_DTOR_IDENTIFIER] 845/* The name of a destructor that destroys virtual base classes. */ 846#define complete_dtor_identifier cp_global_trees[CPTI_COMPLETE_DTOR_IDENTIFIER] 847/* The name of a destructor that does not destroy virtual base 848 classes. */ 849#define base_dtor_identifier cp_global_trees[CPTI_BASE_DTOR_IDENTIFIER] 850/* The name of a destructor that destroys virtual base classes, and 851 then deletes the entire object. */ 852#define deleting_dtor_identifier cp_global_trees[CPTI_DELETING_DTOR_IDENTIFIER] 853#define delta_identifier cp_global_trees[CPTI_DELTA_IDENTIFIER] 854#define in_charge_identifier cp_global_trees[CPTI_IN_CHARGE_IDENTIFIER] 855/* The name of the parameter that contains a pointer to the VTT to use 856 for this subobject constructor or destructor. */ 857#define vtt_parm_identifier cp_global_trees[CPTI_VTT_PARM_IDENTIFIER] 858#define nelts_identifier cp_global_trees[CPTI_NELTS_IDENTIFIER] 859#define this_identifier cp_global_trees[CPTI_THIS_IDENTIFIER] 860#define pfn_identifier cp_global_trees[CPTI_PFN_IDENTIFIER] 861#define vptr_identifier cp_global_trees[CPTI_VPTR_IDENTIFIER] 862/* The name of the std namespace. */ 863#define std_identifier cp_global_trees[CPTI_STD_IDENTIFIER] 864#define lang_name_c cp_global_trees[CPTI_LANG_NAME_C] 865#define lang_name_cplusplus cp_global_trees[CPTI_LANG_NAME_CPLUSPLUS] 866#define lang_name_java cp_global_trees[CPTI_LANG_NAME_JAVA] 867 868/* Exception specifier used for throw(). */ 869#define empty_except_spec cp_global_trees[CPTI_EMPTY_EXCEPT_SPEC] 870#define noexcept_true_spec cp_global_trees[CPTI_NOEXCEPT_TRUE_SPEC] 871#define noexcept_false_spec cp_global_trees[CPTI_NOEXCEPT_FALSE_SPEC] 872 873/* If non-NULL, a POINTER_TYPE equivalent to (java::lang::Class*). */ 874#define jclass_node cp_global_trees[CPTI_JCLASS] 875 876/* The declaration for `std::terminate'. */ 877#define terminate_node cp_global_trees[CPTI_TERMINATE] 878 879/* The declaration for "__cxa_call_unexpected". */ 880#define call_unexpected_node cp_global_trees[CPTI_CALL_UNEXPECTED] 881 882/* The type of the function-pointer argument to "__cxa_atexit" (or 883 "std::atexit", if "__cxa_atexit" is not being used). */ 884#define atexit_fn_ptr_type_node cp_global_trees[CPTI_ATEXIT_FN_PTR_TYPE] 885 886/* A pointer to `std::atexit'. */ 887#define atexit_node cp_global_trees[CPTI_ATEXIT] 888 889/* A pointer to `__dso_handle'. */ 890#define dso_handle_node cp_global_trees[CPTI_DSO_HANDLE] 891 892/* The declaration of the dynamic_cast runtime. */ 893#define dynamic_cast_node cp_global_trees[CPTI_DCAST] 894 895/* The type of a destructor. */ 896#define cleanup_type cp_global_trees[CPTI_CLEANUP_TYPE] 897 898/* The type of the vtt parameter passed to subobject constructors and 899 destructors. */ 900#define vtt_parm_type cp_global_trees[CPTI_VTT_PARM_TYPE] 901 902/* A TREE_LIST of the dynamic classes whose vtables may have to be 903 emitted in this translation unit. */ 904 905#define keyed_classes cp_global_trees[CPTI_KEYED_CLASSES] 906 907/* Node to indicate default access. This must be distinct from the 908 access nodes in tree.h. */ 909 910#define access_default_node null_node 911 912/* Global state. */ 913 914struct GTY(()) saved_scope { 915 VEC(cxx_saved_binding,gc) *old_bindings; 916 tree old_namespace; 917 VEC(tree,gc) *decl_ns_list; 918 tree class_name; 919 tree class_type; 920 tree access_specifier; 921 tree function_decl; 922 VEC(tree,gc) *lang_base; 923 tree lang_name; 924 tree template_parms; 925 struct cp_binding_level *x_previous_class_level; 926 tree x_saved_tree; 927 928 int x_processing_template_decl; 929 int x_processing_specialization; 930 BOOL_BITFIELD x_processing_explicit_instantiation : 1; 931 BOOL_BITFIELD need_pop_function_context : 1; 932 933 int unevaluated_operand; 934 int inhibit_evaluation_warnings; 935 936 struct stmt_tree_s x_stmt_tree; 937 938 struct cp_binding_level *class_bindings; 939 struct cp_binding_level *bindings; 940 941 struct saved_scope *prev; 942}; 943 944/* The current open namespace. */ 945 946#define current_namespace scope_chain->old_namespace 947 948/* The stack for namespaces of current declarations. */ 949 950#define decl_namespace_list scope_chain->decl_ns_list 951 952/* IDENTIFIER_NODE: name of current class */ 953 954#define current_class_name scope_chain->class_name 955 956/* _TYPE: the type of the current class */ 957 958#define current_class_type scope_chain->class_type 959 960/* When parsing a class definition, the access specifier most recently 961 given by the user, or, if no access specifier was given, the 962 default value appropriate for the kind of class (i.e., struct, 963 class, or union). */ 964 965#define current_access_specifier scope_chain->access_specifier 966 967/* Pointer to the top of the language name stack. */ 968 969#define current_lang_base scope_chain->lang_base 970#define current_lang_name scope_chain->lang_name 971 972/* When parsing a template declaration, a TREE_LIST represents the 973 active template parameters. Each node in the list represents one 974 level of template parameters. The innermost level is first in the 975 list. The depth of each level is stored as an INTEGER_CST in the 976 TREE_PURPOSE of each node. The parameters for that level are 977 stored in the TREE_VALUE. */ 978 979#define current_template_parms scope_chain->template_parms 980 981#define processing_template_decl scope_chain->x_processing_template_decl 982#define processing_specialization scope_chain->x_processing_specialization 983#define processing_explicit_instantiation scope_chain->x_processing_explicit_instantiation 984 985/* The cached class binding level, from the most recently exited 986 class, or NULL if none. */ 987 988#define previous_class_level scope_chain->x_previous_class_level 989 990/* A list of private types mentioned, for deferred access checking. */ 991 992extern GTY(()) struct saved_scope *scope_chain; 993 994struct GTY(()) cxx_int_tree_map { 995 unsigned int uid; 996 tree to; 997}; 998 999extern unsigned int cxx_int_tree_map_hash (const void *); 1000extern int cxx_int_tree_map_eq (const void *, const void *); 1001 1002/* Global state pertinent to the current function. */ 1003 1004struct GTY(()) language_function { 1005 struct c_language_function base; 1006 1007 tree x_cdtor_label; 1008 tree x_current_class_ptr; 1009 tree x_current_class_ref; 1010 tree x_eh_spec_block; 1011 tree x_in_charge_parm; 1012 tree x_vtt_parm; 1013 tree x_return_value; 1014 1015 BOOL_BITFIELD returns_value : 1; 1016 BOOL_BITFIELD returns_null : 1; 1017 BOOL_BITFIELD returns_abnormally : 1; 1018 BOOL_BITFIELD in_function_try_handler : 1; 1019 BOOL_BITFIELD in_base_initializer : 1; 1020 1021 /* True if this function can throw an exception. */ 1022 BOOL_BITFIELD can_throw : 1; 1023 1024 htab_t GTY((param_is(struct named_label_entry))) x_named_labels; 1025 struct cp_binding_level *bindings; 1026 VEC(tree,gc) *x_local_names; 1027 htab_t GTY((param_is (struct cxx_int_tree_map))) extern_decl_map; 1028}; 1029 1030/* The current C++-specific per-function global variables. */ 1031 1032#define cp_function_chain (cfun->language) 1033 1034/* In a constructor destructor, the point at which all derived class 1035 destroying/construction has been done. I.e., just before a 1036 constructor returns, or before any base class destroying will be done 1037 in a destructor. */ 1038 1039#define cdtor_label cp_function_chain->x_cdtor_label 1040 1041/* When we're processing a member function, current_class_ptr is the 1042 PARM_DECL for the `this' pointer. The current_class_ref is an 1043 expression for `*this'. */ 1044 1045#define current_class_ptr \ 1046 (cfun && cp_function_chain \ 1047 ? cp_function_chain->x_current_class_ptr : NULL_TREE) 1048#define current_class_ref \ 1049 ((cfun && cp_function_chain) \ 1050 ? cp_function_chain->x_current_class_ref : NULL_TREE) 1051 1052/* The EH_SPEC_BLOCK for the exception-specifiers for the current 1053 function, if any. */ 1054 1055#define current_eh_spec_block cp_function_chain->x_eh_spec_block 1056 1057/* The `__in_chrg' parameter for the current function. Only used for 1058 constructors and destructors. */ 1059 1060#define current_in_charge_parm cp_function_chain->x_in_charge_parm 1061 1062/* The `__vtt_parm' parameter for the current function. Only used for 1063 constructors and destructors. */ 1064 1065#define current_vtt_parm cp_function_chain->x_vtt_parm 1066 1067/* Set to 0 at beginning of a function definition, set to 1 if 1068 a return statement that specifies a return value is seen. */ 1069 1070#define current_function_returns_value cp_function_chain->returns_value 1071 1072/* Set to 0 at beginning of a function definition, set to 1 if 1073 a return statement with no argument is seen. */ 1074 1075#define current_function_returns_null cp_function_chain->returns_null 1076 1077/* Set to 0 at beginning of a function definition, set to 1 if 1078 a call to a noreturn function is seen. */ 1079 1080#define current_function_returns_abnormally \ 1081 cp_function_chain->returns_abnormally 1082 1083/* Nonzero if we are processing a base initializer. Zero elsewhere. */ 1084#define in_base_initializer cp_function_chain->in_base_initializer 1085 1086#define in_function_try_handler cp_function_chain->in_function_try_handler 1087 1088/* Expression always returned from function, or error_mark_node 1089 otherwise, for use by the automatic named return value optimization. */ 1090 1091#define current_function_return_value \ 1092 (cp_function_chain->x_return_value) 1093 1094/* True if NAME is the IDENTIFIER_NODE for an overloaded "operator 1095 new" or "operator delete". */ 1096#define NEW_DELETE_OPNAME_P(NAME) \ 1097 ((NAME) == ansi_opname (NEW_EXPR) \ 1098 || (NAME) == ansi_opname (VEC_NEW_EXPR) \ 1099 || (NAME) == ansi_opname (DELETE_EXPR) \ 1100 || (NAME) == ansi_opname (VEC_DELETE_EXPR)) 1101 1102#define ansi_opname(CODE) \ 1103 (operator_name_info[(int) (CODE)].identifier) 1104#define ansi_assopname(CODE) \ 1105 (assignment_operator_name_info[(int) (CODE)].identifier) 1106 1107/* True if NODE is an erroneous expression. */ 1108 1109#define error_operand_p(NODE) \ 1110 ((NODE) == error_mark_node \ 1111 || ((NODE) && TREE_TYPE ((NODE)) == error_mark_node)) 1112 1113/* TRUE if a tree code represents a statement. */ 1114extern bool statement_code_p[MAX_TREE_CODES]; 1115 1116#define STATEMENT_CODE_P(CODE) statement_code_p[(int) (CODE)] 1117 1118enum languages { lang_c, lang_cplusplus, lang_java }; 1119 1120/* Macros to make error reporting functions' lives easier. */ 1121#define TYPE_IDENTIFIER(NODE) (DECL_NAME (TYPE_NAME (NODE))) 1122#define TYPE_LINKAGE_IDENTIFIER(NODE) \ 1123 (TYPE_IDENTIFIER (TYPE_MAIN_VARIANT (NODE))) 1124#define TYPE_NAME_STRING(NODE) (IDENTIFIER_POINTER (TYPE_IDENTIFIER (NODE))) 1125#define TYPE_NAME_LENGTH(NODE) (IDENTIFIER_LENGTH (TYPE_IDENTIFIER (NODE))) 1126 1127/* Nonzero if NODE has no name for linkage purposes. */ 1128#define TYPE_ANONYMOUS_P(NODE) \ 1129 (TAGGED_TYPE_P (NODE) && ANON_AGGRNAME_P (TYPE_LINKAGE_IDENTIFIER (NODE))) 1130 1131/* The _DECL for this _TYPE. */ 1132#define TYPE_MAIN_DECL(NODE) (TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE))) 1133 1134/* Nonzero if T is a class (or struct or union) type. Also nonzero 1135 for template type parameters, typename types, and instantiated 1136 template template parameters. Keep these checks in ascending code 1137 order. */ 1138#define MAYBE_CLASS_TYPE_P(T) \ 1139 (TREE_CODE (T) == TEMPLATE_TYPE_PARM \ 1140 || TREE_CODE (T) == TYPENAME_TYPE \ 1141 || TREE_CODE (T) == TYPEOF_TYPE \ 1142 || TREE_CODE (T) == BOUND_TEMPLATE_TEMPLATE_PARM \ 1143 || TREE_CODE (T) == DECLTYPE_TYPE \ 1144 || CLASS_TYPE_P (T)) 1145 1146/* Set CLASS_TYPE_P for T to VAL. T must be a class, struct, or 1147 union type. */ 1148#define SET_CLASS_TYPE_P(T, VAL) \ 1149 (TYPE_LANG_FLAG_5 (T) = (VAL)) 1150 1151/* Nonzero if T is a class type. Zero for template type parameters, 1152 typename types, and so forth. */ 1153#define CLASS_TYPE_P(T) \ 1154 (RECORD_OR_UNION_CODE_P (TREE_CODE (T)) && TYPE_LANG_FLAG_5 (T)) 1155 1156/* Nonzero if T is a class type but not an union. */ 1157#define NON_UNION_CLASS_TYPE_P(T) \ 1158 (CLASS_TYPE_P (T) && TREE_CODE (T) != UNION_TYPE) 1159 1160/* Keep these checks in ascending code order. */ 1161#define RECORD_OR_UNION_CODE_P(T) \ 1162 ((T) == RECORD_TYPE || (T) == UNION_TYPE) 1163#define TAGGED_TYPE_P(T) \ 1164 (CLASS_TYPE_P (T) || TREE_CODE (T) == ENUMERAL_TYPE) 1165#define IS_OVERLOAD_TYPE(T) TAGGED_TYPE_P (T) 1166 1167/* True if this a "Java" type, defined in 'extern "Java"'. */ 1168#define TYPE_FOR_JAVA(NODE) TYPE_LANG_FLAG_3 (NODE) 1169 1170/* True if this type is dependent. This predicate is only valid if 1171 TYPE_DEPENDENT_P_VALID is true. */ 1172#define TYPE_DEPENDENT_P(NODE) TYPE_LANG_FLAG_0 (NODE) 1173 1174/* True if dependent_type_p has been called for this type, with the 1175 result that TYPE_DEPENDENT_P is valid. */ 1176#define TYPE_DEPENDENT_P_VALID(NODE) TYPE_LANG_FLAG_6(NODE) 1177 1178/* Nonzero if this type is const-qualified. */ 1179#define CP_TYPE_CONST_P(NODE) \ 1180 ((cp_type_quals (NODE) & TYPE_QUAL_CONST) != 0) 1181 1182/* Nonzero if this type is volatile-qualified. */ 1183#define CP_TYPE_VOLATILE_P(NODE) \ 1184 ((cp_type_quals (NODE) & TYPE_QUAL_VOLATILE) != 0) 1185 1186/* Nonzero if this type is restrict-qualified. */ 1187#define CP_TYPE_RESTRICT_P(NODE) \ 1188 ((cp_type_quals (NODE) & TYPE_QUAL_RESTRICT) != 0) 1189 1190/* Nonzero if this type is const-qualified, but not 1191 volatile-qualified. Other qualifiers are ignored. This macro is 1192 used to test whether or not it is OK to bind an rvalue to a 1193 reference. */ 1194#define CP_TYPE_CONST_NON_VOLATILE_P(NODE) \ 1195 ((cp_type_quals (NODE) & (TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE)) \ 1196 == TYPE_QUAL_CONST) 1197 1198#define FUNCTION_ARG_CHAIN(NODE) \ 1199 TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (NODE))) 1200 1201/* Given a FUNCTION_DECL, returns the first TREE_LIST out of TYPE_ARG_TYPES 1202 which refers to a user-written parameter. */ 1203#define FUNCTION_FIRST_USER_PARMTYPE(NODE) \ 1204 skip_artificial_parms_for ((NODE), TYPE_ARG_TYPES (TREE_TYPE (NODE))) 1205 1206/* Similarly, but for DECL_ARGUMENTS. */ 1207#define FUNCTION_FIRST_USER_PARM(NODE) \ 1208 skip_artificial_parms_for ((NODE), DECL_ARGUMENTS (NODE)) 1209 1210/* Nonzero iff TYPE is derived from PARENT. Ignores accessibility and 1211 ambiguity issues. */ 1212#define DERIVED_FROM_P(PARENT, TYPE) \ 1213 (lookup_base ((TYPE), (PARENT), ba_any, NULL) != NULL_TREE) 1214/* Nonzero iff TYPE is uniquely derived from PARENT. Ignores 1215 accessibility. */ 1216#define UNIQUELY_DERIVED_FROM_P(PARENT, TYPE) \ 1217 (lookup_base ((TYPE), (PARENT), ba_unique | ba_quiet, NULL) != NULL_TREE) 1218/* Nonzero iff TYPE is publicly & uniquely derived from PARENT. */ 1219#define PUBLICLY_UNIQUELY_DERIVED_P(PARENT, TYPE) \ 1220 (lookup_base ((TYPE), (PARENT), ba_ignore_scope | ba_check | ba_quiet, \ 1221 NULL) != NULL_TREE) 1222 1223/* Gives the visibility specification for a class type. */ 1224#define CLASSTYPE_VISIBILITY(TYPE) \ 1225 DECL_VISIBILITY (TYPE_MAIN_DECL (TYPE)) 1226#define CLASSTYPE_VISIBILITY_SPECIFIED(TYPE) \ 1227 DECL_VISIBILITY_SPECIFIED (TYPE_MAIN_DECL (TYPE)) 1228 1229typedef struct GTY (()) tree_pair_s { 1230 tree purpose; 1231 tree value; 1232} tree_pair_s; 1233typedef tree_pair_s *tree_pair_p; 1234DEF_VEC_O (tree_pair_s); 1235DEF_VEC_ALLOC_O (tree_pair_s,gc); 1236 1237/* This is a few header flags for 'struct lang_type'. Actually, 1238 all but the first are used only for lang_type_class; they 1239 are put in this structure to save space. */ 1240struct GTY(()) lang_type_header { 1241 BOOL_BITFIELD is_lang_type_class : 1; 1242 1243 BOOL_BITFIELD has_type_conversion : 1; 1244 BOOL_BITFIELD has_copy_ctor : 1; 1245 BOOL_BITFIELD has_default_ctor : 1; 1246 BOOL_BITFIELD const_needs_init : 1; 1247 BOOL_BITFIELD ref_needs_init : 1; 1248 BOOL_BITFIELD has_const_copy_assign : 1; 1249 1250 BOOL_BITFIELD spare : 1; 1251}; 1252 1253/* This structure provides additional information above and beyond 1254 what is provide in the ordinary tree_type. In the past, we used it 1255 for the types of class types, template parameters types, typename 1256 types, and so forth. However, there can be many (tens to hundreds 1257 of thousands) of template parameter types in a compilation, and 1258 there's no need for this additional information in that case. 1259 Therefore, we now use this data structure only for class types. 1260 1261 In the past, it was thought that there would be relatively few 1262 class types. However, in the presence of heavy use of templates, 1263 many (i.e., thousands) of classes can easily be generated. 1264 Therefore, we should endeavor to keep the size of this structure to 1265 a minimum. */ 1266struct GTY(()) lang_type_class { 1267 struct lang_type_header h; 1268 1269 unsigned char align; 1270 1271 unsigned has_mutable : 1; 1272 unsigned com_interface : 1; 1273 unsigned non_pod_class : 1; 1274 unsigned nearly_empty_p : 1; 1275 unsigned user_align : 1; 1276 unsigned has_copy_assign : 1; 1277 unsigned has_new : 1; 1278 unsigned has_array_new : 1; 1279 1280 unsigned gets_delete : 2; 1281 unsigned interface_only : 1; 1282 unsigned interface_unknown : 1; 1283 unsigned contains_empty_class_p : 1; 1284 unsigned anon_aggr : 1; 1285 unsigned non_zero_init : 1; 1286 unsigned empty_p : 1; 1287 1288 unsigned vec_new_uses_cookie : 1; 1289 unsigned declared_class : 1; 1290 unsigned diamond_shaped : 1; 1291 unsigned repeated_base : 1; 1292 unsigned being_defined : 1; 1293 unsigned java_interface : 1; 1294 unsigned debug_requested : 1; 1295 unsigned fields_readonly : 1; 1296 1297 unsigned use_template : 2; 1298 unsigned ptrmemfunc_flag : 1; 1299 unsigned was_anonymous : 1; 1300 unsigned lazy_default_ctor : 1; 1301 unsigned lazy_copy_ctor : 1; 1302 unsigned lazy_copy_assign : 1; 1303 unsigned lazy_destructor : 1; 1304 1305 unsigned has_const_copy_ctor : 1; 1306 unsigned has_complex_copy_ctor : 1; 1307 unsigned has_complex_copy_assign : 1; 1308 unsigned non_aggregate : 1; 1309 unsigned has_complex_dflt : 1; 1310 unsigned has_list_ctor : 1; 1311 unsigned non_std_layout : 1; 1312 unsigned is_literal : 1; 1313 1314 unsigned lazy_move_ctor : 1; 1315 unsigned lazy_move_assign : 1; 1316 unsigned has_complex_move_ctor : 1; 1317 unsigned has_complex_move_assign : 1; 1318 unsigned has_constexpr_ctor : 1; 1319 1320 /* When adding a flag here, consider whether or not it ought to 1321 apply to a template instance if it applies to the template. If 1322 so, make sure to copy it in instantiate_class_template! */ 1323 1324 /* There are some bits left to fill out a 32-bit word. Keep track 1325 of this by updating the size of this bitfield whenever you add or 1326 remove a flag. */ 1327 unsigned dummy : 3; 1328 1329 tree primary_base; 1330 VEC(tree_pair_s,gc) *vcall_indices; 1331 tree vtables; 1332 tree typeinfo_var; 1333 VEC(tree,gc) *vbases; 1334 binding_table nested_udts; 1335 tree as_base; 1336 VEC(tree,gc) *pure_virtuals; 1337 tree friend_classes; 1338 VEC(tree,gc) * GTY((reorder ("resort_type_method_vec"))) methods; 1339 tree key_method; 1340 tree decl_list; 1341 tree template_info; 1342 tree befriending_classes; 1343 /* In a RECORD_TYPE, information specific to Objective-C++, such 1344 as a list of adopted protocols or a pointer to a corresponding 1345 @interface. See objc/objc-act.h for details. */ 1346 tree objc_info; 1347 /* sorted_fields is sorted based on a pointer, so we need to be able 1348 to resort it if pointers get rearranged. */ 1349 struct sorted_fields_type * GTY ((reorder ("resort_sorted_fields"))) 1350 sorted_fields; 1351 /* FIXME reuse another field? */ 1352 tree lambda_expr; 1353}; 1354 1355struct GTY(()) lang_type_ptrmem { 1356 struct lang_type_header h; 1357 tree record; 1358}; 1359 1360struct GTY((variable_size)) lang_type { 1361 union lang_type_u 1362 { 1363 struct lang_type_header GTY((skip (""))) h; 1364 struct lang_type_class GTY((tag ("1"))) c; 1365 struct lang_type_ptrmem GTY((tag ("0"))) ptrmem; 1366 } GTY((desc ("%h.h.is_lang_type_class"))) u; 1367}; 1368 1369#if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007) 1370 1371#define LANG_TYPE_CLASS_CHECK(NODE) __extension__ \ 1372({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \ 1373 if (! lt->u.h.is_lang_type_class) \ 1374 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 1375 <->u.c; }) 1376 1377#define LANG_TYPE_PTRMEM_CHECK(NODE) __extension__ \ 1378({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \ 1379 if (lt->u.h.is_lang_type_class) \ 1380 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 1381 <->u.ptrmem; }) 1382 1383#else 1384 1385#define LANG_TYPE_CLASS_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.c) 1386#define LANG_TYPE_PTRMEM_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.ptrmem) 1387 1388#endif /* ENABLE_TREE_CHECKING */ 1389 1390/* Nonzero for _CLASSTYPE means that operator delete is defined. */ 1391#define TYPE_GETS_DELETE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->gets_delete) 1392#define TYPE_GETS_REG_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 1) 1393 1394/* Nonzero if `new NODE[x]' should cause the allocation of extra 1395 storage to indicate how many array elements are in use. */ 1396#define TYPE_VEC_NEW_USES_COOKIE(NODE) \ 1397 (CLASS_TYPE_P (NODE) \ 1398 && LANG_TYPE_CLASS_CHECK (NODE)->vec_new_uses_cookie) 1399 1400/* Nonzero means that this _CLASSTYPE node defines ways of converting 1401 itself to other types. */ 1402#define TYPE_HAS_CONVERSION(NODE) \ 1403 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_type_conversion) 1404 1405/* Nonzero means that NODE (a class type) has a default constructor -- 1406 but that it has not yet been declared. */ 1407#define CLASSTYPE_LAZY_DEFAULT_CTOR(NODE) \ 1408 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_default_ctor) 1409 1410/* Nonzero means that NODE (a class type) has a copy constructor -- 1411 but that it has not yet been declared. */ 1412#define CLASSTYPE_LAZY_COPY_CTOR(NODE) \ 1413 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_ctor) 1414 1415/* Nonzero means that NODE (a class type) has a move constructor -- 1416 but that it has not yet been declared. */ 1417#define CLASSTYPE_LAZY_MOVE_CTOR(NODE) \ 1418 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_move_ctor) 1419 1420/* Nonzero means that NODE (a class type) has an assignment operator 1421 -- but that it has not yet been declared. */ 1422#define CLASSTYPE_LAZY_COPY_ASSIGN(NODE) \ 1423 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_assign) 1424 1425/* Nonzero means that NODE (a class type) has an assignment operator 1426 -- but that it has not yet been declared. */ 1427#define CLASSTYPE_LAZY_MOVE_ASSIGN(NODE) \ 1428 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_move_assign) 1429 1430/* Nonzero means that NODE (a class type) has a destructor -- but that 1431 it has not yet been declared. */ 1432#define CLASSTYPE_LAZY_DESTRUCTOR(NODE) \ 1433 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_destructor) 1434 1435/* Nonzero means that this _CLASSTYPE node overloads operator=(X&). */ 1436#define TYPE_HAS_COPY_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_copy_assign) 1437 1438/* True iff the class type NODE has an "operator =" whose parameter 1439 has a parameter of type "const X&". */ 1440#define TYPE_HAS_CONST_COPY_ASSIGN(NODE) \ 1441 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_const_copy_assign) 1442 1443/* Nonzero means that this _CLASSTYPE node has an X(X&) constructor. */ 1444#define TYPE_HAS_COPY_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->h.has_copy_ctor) 1445#define TYPE_HAS_CONST_COPY_CTOR(NODE) \ 1446 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_copy_ctor) 1447 1448/* Nonzero if this class has an X(initializer_list<T>) constructor. */ 1449#define TYPE_HAS_LIST_CTOR(NODE) \ 1450 (LANG_TYPE_CLASS_CHECK (NODE)->has_list_ctor) 1451 1452/* Nonzero if this class has a constexpr constructor other than a copy/move 1453 constructor. Note that a class can have constexpr constructors for 1454 static initialization even if it isn't a literal class. */ 1455#define TYPE_HAS_CONSTEXPR_CTOR(NODE) \ 1456 (LANG_TYPE_CLASS_CHECK (NODE)->has_constexpr_ctor) 1457 1458/* Nonzero if this class defines an overloaded operator new. (An 1459 operator new [] doesn't count.) */ 1460#define TYPE_HAS_NEW_OPERATOR(NODE) \ 1461 (LANG_TYPE_CLASS_CHECK (NODE)->has_new) 1462 1463/* Nonzero if this class defines an overloaded operator new[]. */ 1464#define TYPE_HAS_ARRAY_NEW_OPERATOR(NODE) \ 1465 (LANG_TYPE_CLASS_CHECK (NODE)->has_array_new) 1466 1467/* Nonzero means that this type is being defined. I.e., the left brace 1468 starting the definition of this type has been seen. */ 1469#define TYPE_BEING_DEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->being_defined) 1470 1471/* Nonzero means that this type is either complete or being defined, so we 1472 can do lookup in it. */ 1473#define COMPLETE_OR_OPEN_TYPE_P(NODE) \ 1474 (COMPLETE_TYPE_P (NODE) || (CLASS_TYPE_P (NODE) && TYPE_BEING_DEFINED (NODE))) 1475 1476/* Mark bits for repeated base checks. */ 1477#define TYPE_MARKED_P(NODE) TREE_LANG_FLAG_6 (TYPE_CHECK (NODE)) 1478 1479/* Nonzero if the class NODE has multiple paths to the same (virtual) 1480 base object. */ 1481#define CLASSTYPE_DIAMOND_SHAPED_P(NODE) \ 1482 (LANG_TYPE_CLASS_CHECK(NODE)->diamond_shaped) 1483 1484/* Nonzero if the class NODE has multiple instances of the same base 1485 type. */ 1486#define CLASSTYPE_REPEATED_BASE_P(NODE) \ 1487 (LANG_TYPE_CLASS_CHECK(NODE)->repeated_base) 1488 1489/* The member function with which the vtable will be emitted: 1490 the first noninline non-pure-virtual member function. NULL_TREE 1491 if there is no key function or if this is a class template */ 1492#define CLASSTYPE_KEY_METHOD(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->key_method) 1493 1494/* Vector member functions defined in this class. Each element is 1495 either a FUNCTION_DECL, a TEMPLATE_DECL, or an OVERLOAD. All 1496 functions with the same name end up in the same slot. The first 1497 two elements are for constructors, and destructors, respectively. 1498 All template conversion operators to innermost template dependent 1499 types are overloaded on the next slot, if they exist. Note, the 1500 names for these functions will not all be the same. The 1501 non-template conversion operators & templated conversions to 1502 non-innermost template types are next, followed by ordinary member 1503 functions. There may be empty entries at the end of the vector. 1504 The conversion operators are unsorted. The ordinary member 1505 functions are sorted, once the class is complete. */ 1506#define CLASSTYPE_METHOD_VEC(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->methods) 1507 1508/* For class templates, this is a TREE_LIST of all member data, 1509 functions, types, and friends in the order of declaration. 1510 The TREE_PURPOSE of each TREE_LIST is NULL_TREE for a friend, 1511 and the RECORD_TYPE for the class template otherwise. */ 1512#define CLASSTYPE_DECL_LIST(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->decl_list) 1513 1514/* The slot in the CLASSTYPE_METHOD_VEC where constructors go. */ 1515#define CLASSTYPE_CONSTRUCTOR_SLOT 0 1516 1517/* The slot in the CLASSTYPE_METHOD_VEC where destructors go. */ 1518#define CLASSTYPE_DESTRUCTOR_SLOT 1 1519 1520/* The first slot in the CLASSTYPE_METHOD_VEC where conversion 1521 operators can appear. */ 1522#define CLASSTYPE_FIRST_CONVERSION_SLOT 2 1523 1524/* A FUNCTION_DECL or OVERLOAD for the constructors for NODE. These 1525 are the constructors that take an in-charge parameter. */ 1526#define CLASSTYPE_CONSTRUCTORS(NODE) \ 1527 (VEC_index (tree, CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_CONSTRUCTOR_SLOT)) 1528 1529/* A FUNCTION_DECL for the destructor for NODE. These are the 1530 destructors that take an in-charge parameter. If 1531 CLASSTYPE_LAZY_DESTRUCTOR is true, then this entry will be NULL 1532 until the destructor is created with lazily_declare_fn. */ 1533#define CLASSTYPE_DESTRUCTORS(NODE) \ 1534 (CLASSTYPE_METHOD_VEC (NODE) \ 1535 ? VEC_index (tree, CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_DESTRUCTOR_SLOT) \ 1536 : NULL_TREE) 1537 1538/* A dictionary of the nested user-defined-types (class-types, or enums) 1539 found within this class. This table includes nested member class 1540 templates. */ 1541#define CLASSTYPE_NESTED_UTDS(NODE) \ 1542 (LANG_TYPE_CLASS_CHECK (NODE)->nested_udts) 1543 1544/* Nonzero if NODE has a primary base class, i.e., a base class with 1545 which it shares the virtual function table pointer. */ 1546#define CLASSTYPE_HAS_PRIMARY_BASE_P(NODE) \ 1547 (CLASSTYPE_PRIMARY_BINFO (NODE) != NULL_TREE) 1548 1549/* If non-NULL, this is the binfo for the primary base class, i.e., 1550 the base class which contains the virtual function table pointer 1551 for this class. */ 1552#define CLASSTYPE_PRIMARY_BINFO(NODE) \ 1553 (LANG_TYPE_CLASS_CHECK (NODE)->primary_base) 1554 1555/* A vector of BINFOs for the direct and indirect virtual base classes 1556 that this type uses in a post-order depth-first left-to-right 1557 order. (In other words, these bases appear in the order that they 1558 should be initialized.) */ 1559#define CLASSTYPE_VBASECLASSES(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->vbases) 1560 1561/* The type corresponding to NODE when NODE is used as a base class, 1562 i.e., NODE without virtual base classes. */ 1563 1564#define CLASSTYPE_AS_BASE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->as_base) 1565 1566/* True iff NODE is the CLASSTYPE_AS_BASE version of some type. */ 1567 1568#define IS_FAKE_BASE_TYPE(NODE) \ 1569 (TREE_CODE (NODE) == RECORD_TYPE \ 1570 && TYPE_CONTEXT (NODE) && CLASS_TYPE_P (TYPE_CONTEXT (NODE)) \ 1571 && CLASSTYPE_AS_BASE (TYPE_CONTEXT (NODE)) == (NODE)) 1572 1573/* These are the size and alignment of the type without its virtual 1574 base classes, for when we use this type as a base itself. */ 1575#define CLASSTYPE_SIZE(NODE) TYPE_SIZE (CLASSTYPE_AS_BASE (NODE)) 1576#define CLASSTYPE_SIZE_UNIT(NODE) TYPE_SIZE_UNIT (CLASSTYPE_AS_BASE (NODE)) 1577#define CLASSTYPE_ALIGN(NODE) TYPE_ALIGN (CLASSTYPE_AS_BASE (NODE)) 1578#define CLASSTYPE_USER_ALIGN(NODE) TYPE_USER_ALIGN (CLASSTYPE_AS_BASE (NODE)) 1579 1580/* The alignment of NODE, without its virtual bases, in bytes. */ 1581#define CLASSTYPE_ALIGN_UNIT(NODE) \ 1582 (CLASSTYPE_ALIGN (NODE) / BITS_PER_UNIT) 1583 1584/* True if this a Java interface type, declared with 1585 '__attribute__ ((java_interface))'. */ 1586#define TYPE_JAVA_INTERFACE(NODE) \ 1587 (LANG_TYPE_CLASS_CHECK (NODE)->java_interface) 1588 1589/* A VEC(tree) of virtual functions which cannot be inherited by 1590 derived classes. When deriving from this type, the derived 1591 class must provide its own definition for each of these functions. */ 1592#define CLASSTYPE_PURE_VIRTUALS(NODE) \ 1593 (LANG_TYPE_CLASS_CHECK (NODE)->pure_virtuals) 1594 1595/* Nonzero means that this type has an X() constructor. */ 1596#define TYPE_HAS_DEFAULT_CONSTRUCTOR(NODE) \ 1597 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_default_ctor) 1598 1599/* Nonzero means that this type contains a mutable member. */ 1600#define CLASSTYPE_HAS_MUTABLE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_mutable) 1601#define TYPE_HAS_MUTABLE_P(NODE) (cp_has_mutable_p (NODE)) 1602 1603/* Nonzero means that this class type is not POD for the purpose of layout 1604 (as defined in the ABI). This is different from the language's POD. */ 1605#define CLASSTYPE_NON_LAYOUT_POD_P(NODE) \ 1606 (LANG_TYPE_CLASS_CHECK (NODE)->non_pod_class) 1607 1608/* Nonzero means that this class type is a non-standard-layout class. */ 1609#define CLASSTYPE_NON_STD_LAYOUT(NODE) \ 1610 (LANG_TYPE_CLASS_CHECK (NODE)->non_std_layout) 1611 1612/* Nonzero means that this class contains pod types whose default 1613 initialization is not a zero initialization (namely, pointers to 1614 data members). */ 1615#define CLASSTYPE_NON_ZERO_INIT_P(NODE) \ 1616 (LANG_TYPE_CLASS_CHECK (NODE)->non_zero_init) 1617 1618/* Nonzero if this class is "empty" in the sense of the C++ ABI. */ 1619#define CLASSTYPE_EMPTY_P(NODE) \ 1620 (LANG_TYPE_CLASS_CHECK (NODE)->empty_p) 1621 1622/* Nonzero if this class is "nearly empty", i.e., contains only a 1623 virtual function table pointer. */ 1624#define CLASSTYPE_NEARLY_EMPTY_P(NODE) \ 1625 (LANG_TYPE_CLASS_CHECK (NODE)->nearly_empty_p) 1626 1627/* Nonzero if this class contains an empty subobject. */ 1628#define CLASSTYPE_CONTAINS_EMPTY_CLASS_P(NODE) \ 1629 (LANG_TYPE_CLASS_CHECK (NODE)->contains_empty_class_p) 1630 1631/* A list of class types of which this type is a friend. The 1632 TREE_VALUE is normally a TYPE, but will be a TEMPLATE_DECL in the 1633 case of a template friend. */ 1634#define CLASSTYPE_FRIEND_CLASSES(NODE) \ 1635 (LANG_TYPE_CLASS_CHECK (NODE)->friend_classes) 1636 1637/* A list of the classes which grant friendship to this class. */ 1638#define CLASSTYPE_BEFRIENDING_CLASSES(NODE) \ 1639 (LANG_TYPE_CLASS_CHECK (NODE)->befriending_classes) 1640 1641/* The associated LAMBDA_EXPR that made this class. */ 1642#define CLASSTYPE_LAMBDA_EXPR(NODE) \ 1643 (LANG_TYPE_CLASS_CHECK (NODE)->lambda_expr) 1644/* The extra mangling scope for this closure type. */ 1645#define LAMBDA_TYPE_EXTRA_SCOPE(NODE) \ 1646 (LAMBDA_EXPR_EXTRA_SCOPE (CLASSTYPE_LAMBDA_EXPR (NODE))) 1647 1648/* Say whether this node was declared as a "class" or a "struct". */ 1649#define CLASSTYPE_DECLARED_CLASS(NODE) \ 1650 (LANG_TYPE_CLASS_CHECK (NODE)->declared_class) 1651 1652/* Nonzero if this class has const members 1653 which have no specified initialization. */ 1654#define CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE) \ 1655 (TYPE_LANG_SPECIFIC (NODE) \ 1656 ? LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init : 0) 1657#define SET_CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE, VALUE) \ 1658 (LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init = (VALUE)) 1659 1660/* Nonzero if this class has ref members 1661 which have no specified initialization. */ 1662#define CLASSTYPE_REF_FIELDS_NEED_INIT(NODE) \ 1663 (TYPE_LANG_SPECIFIC (NODE) \ 1664 ? LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init : 0) 1665#define SET_CLASSTYPE_REF_FIELDS_NEED_INIT(NODE, VALUE) \ 1666 (LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init = (VALUE)) 1667 1668/* Nonzero if this class is included from a header file which employs 1669 `#pragma interface', and it is not included in its implementation file. */ 1670#define CLASSTYPE_INTERFACE_ONLY(NODE) \ 1671 (LANG_TYPE_CLASS_CHECK (NODE)->interface_only) 1672 1673/* True if we have already determined whether or not vtables, VTTs, 1674 typeinfo, and other similar per-class data should be emitted in 1675 this translation unit. This flag does not indicate whether or not 1676 these items should be emitted; it only indicates that we know one 1677 way or the other. */ 1678#define CLASSTYPE_INTERFACE_KNOWN(NODE) \ 1679 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown == 0) 1680/* The opposite of CLASSTYPE_INTERFACE_KNOWN. */ 1681#define CLASSTYPE_INTERFACE_UNKNOWN(NODE) \ 1682 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown) 1683 1684#define SET_CLASSTYPE_INTERFACE_UNKNOWN_X(NODE,X) \ 1685 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = !!(X)) 1686#define SET_CLASSTYPE_INTERFACE_UNKNOWN(NODE) \ 1687 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 1) 1688#define SET_CLASSTYPE_INTERFACE_KNOWN(NODE) \ 1689 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 0) 1690 1691/* Nonzero if a _DECL node requires us to output debug info for this class. */ 1692#define CLASSTYPE_DEBUG_REQUESTED(NODE) \ 1693 (LANG_TYPE_CLASS_CHECK (NODE)->debug_requested) 1694 1695/* Additional macros for inheritance information. */ 1696 1697/* Nonzero means that this class is on a path leading to a new vtable. */ 1698#define BINFO_VTABLE_PATH_MARKED(NODE) BINFO_FLAG_1 (NODE) 1699 1700/* Nonzero means B (a BINFO) has its own vtable. Any copies will not 1701 have this flag set. */ 1702#define BINFO_NEW_VTABLE_MARKED(B) (BINFO_FLAG_2 (B)) 1703 1704/* Compare a BINFO_TYPE with another type for equality. For a binfo, 1705 this is functionally equivalent to using same_type_p, but 1706 measurably faster. At least one of the arguments must be a 1707 BINFO_TYPE. The other can be a BINFO_TYPE or a regular type. If 1708 BINFO_TYPE(T) ever stops being the main variant of the class the 1709 binfo is for, this macro must change. */ 1710#define SAME_BINFO_TYPE_P(A, B) ((A) == (B)) 1711 1712/* Any subobject that needs a new vtable must have a vptr and must not 1713 be a non-virtual primary base (since it would then use the vtable from a 1714 derived class and never become non-primary.) */ 1715#define SET_BINFO_NEW_VTABLE_MARKED(B) \ 1716 (BINFO_NEW_VTABLE_MARKED (B) = 1, \ 1717 gcc_assert (!BINFO_PRIMARY_P (B) || BINFO_VIRTUAL_P (B)), \ 1718 gcc_assert (TYPE_VFIELD (BINFO_TYPE (B)))) 1719 1720/* Nonzero if this binfo is for a dependent base - one that should not 1721 be searched. */ 1722#define BINFO_DEPENDENT_BASE_P(NODE) BINFO_FLAG_3 (NODE) 1723 1724/* Nonzero if this binfo has lost its primary base binfo (because that 1725 is a nearly-empty virtual base that has been taken by some other 1726 base in the complete hierarchy. */ 1727#define BINFO_LOST_PRIMARY_P(NODE) BINFO_FLAG_4 (NODE) 1728 1729/* Nonzero if this BINFO is a primary base class. */ 1730#define BINFO_PRIMARY_P(NODE) BINFO_FLAG_5(NODE) 1731 1732/* Used by various search routines. */ 1733#define IDENTIFIER_MARKED(NODE) TREE_LANG_FLAG_0 (NODE) 1734 1735/* A VEC(tree_pair_s) of the vcall indices associated with the class 1736 NODE. The PURPOSE of each element is a FUNCTION_DECL for a virtual 1737 function. The VALUE is the index into the virtual table where the 1738 vcall offset for that function is stored, when NODE is a virtual 1739 base. */ 1740#define CLASSTYPE_VCALL_INDICES(NODE) \ 1741 (LANG_TYPE_CLASS_CHECK (NODE)->vcall_indices) 1742 1743/* The various vtables for the class NODE. The primary vtable will be 1744 first, followed by the construction vtables and VTT, if any. */ 1745#define CLASSTYPE_VTABLES(NODE) \ 1746 (LANG_TYPE_CLASS_CHECK (NODE)->vtables) 1747 1748/* The std::type_info variable representing this class, or NULL if no 1749 such variable has been created. This field is only set for the 1750 TYPE_MAIN_VARIANT of the class. */ 1751#define CLASSTYPE_TYPEINFO_VAR(NODE) \ 1752 (LANG_TYPE_CLASS_CHECK (NODE)->typeinfo_var) 1753 1754/* Accessor macros for the BINFO_VIRTUALS list. */ 1755 1756/* The number of bytes by which to adjust the `this' pointer when 1757 calling this virtual function. Subtract this value from the this 1758 pointer. Always non-NULL, might be constant zero though. */ 1759#define BV_DELTA(NODE) (TREE_PURPOSE (NODE)) 1760 1761/* If non-NULL, the vtable index at which to find the vcall offset 1762 when calling this virtual function. Add the value at that vtable 1763 index to the this pointer. */ 1764#define BV_VCALL_INDEX(NODE) (TREE_TYPE (NODE)) 1765 1766/* The function to call. */ 1767#define BV_FN(NODE) (TREE_VALUE (NODE)) 1768 1769/* Whether or not this entry is for a lost primary virtual base. */ 1770#define BV_LOST_PRIMARY(NODE) (TREE_LANG_FLAG_0 (NODE)) 1771 1772/* For FUNCTION_TYPE or METHOD_TYPE, a list of the exceptions that 1773 this type can raise. Each TREE_VALUE is a _TYPE. The TREE_VALUE 1774 will be NULL_TREE to indicate a throw specification of `()', or 1775 no exceptions allowed. For a noexcept specification, TREE_VALUE 1776 is NULL_TREE and TREE_PURPOSE is the constant-expression. */ 1777#define TYPE_RAISES_EXCEPTIONS(NODE) TYPE_LANG_SLOT_1 (NODE) 1778 1779/* For FUNCTION_TYPE or METHOD_TYPE, return 1 iff it is declared `throw()' 1780 or noexcept(true). */ 1781#define TYPE_NOTHROW_P(NODE) nothrow_spec_p (TYPE_RAISES_EXCEPTIONS (NODE)) 1782 1783/* For FUNCTION_TYPE or METHOD_TYPE, true if NODE is noexcept. This is the 1784 case for things declared noexcept(true) and, with -fnothrow-opt, for 1785 throw() functions. */ 1786#define TYPE_NOEXCEPT_P(NODE) type_noexcept_p (NODE) 1787 1788/* The binding level associated with the namespace. */ 1789#define NAMESPACE_LEVEL(NODE) \ 1790 (LANG_DECL_NS_CHECK (NODE)->level) 1791 1792/* Flags shared by all forms of DECL_LANG_SPECIFIC. 1793 1794 Some of the flags live here only to make lang_decl_min/fn smaller. Do 1795 not make this struct larger than 32 bits; instead, make sel smaller. */ 1796 1797struct GTY(()) lang_decl_base { 1798 unsigned selector : 16; /* Larger than necessary for faster access. */ 1799 ENUM_BITFIELD(languages) language : 4; 1800 unsigned use_template : 2; 1801 unsigned not_really_extern : 1; /* var or fn */ 1802 unsigned initialized_in_class : 1; /* var or fn */ 1803 unsigned repo_available_p : 1; /* var or fn */ 1804 unsigned threadprivate_or_deleted_p : 1; /* var or fn */ 1805 unsigned anticipated_p : 1; /* fn or type */ 1806 unsigned friend_attr : 1; /* fn or type */ 1807 unsigned template_conv_p : 1; /* var or template */ 1808 unsigned odr_used : 1; /* var or fn */ 1809 unsigned u2sel : 1; 1810 /* 1 spare bit */ 1811}; 1812 1813/* True for DECL codes which have template info and access. */ 1814#define LANG_DECL_HAS_MIN(NODE) \ 1815 (TREE_CODE (NODE) == FUNCTION_DECL \ 1816 || TREE_CODE (NODE) == FIELD_DECL \ 1817 || TREE_CODE (NODE) == VAR_DECL \ 1818 || TREE_CODE (NODE) == CONST_DECL \ 1819 || TREE_CODE (NODE) == TYPE_DECL \ 1820 || TREE_CODE (NODE) == TEMPLATE_DECL \ 1821 || TREE_CODE (NODE) == USING_DECL) 1822 1823/* DECL_LANG_SPECIFIC for the above codes. */ 1824 1825struct GTY(()) lang_decl_min { 1826 struct lang_decl_base base; 1827 1828 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is 1829 THUNK_ALIAS. 1830 In a FUNCTION_DECL for which DECL_THUNK_P does not hold, 1831 VAR_DECL, TYPE_DECL, or TEMPLATE_DECL, this is 1832 DECL_TEMPLATE_INFO. */ 1833 tree template_info; 1834 1835 union lang_decl_u2 { 1836 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is 1837 THUNK_VIRTUAL_OFFSET. 1838 Otherwise this is DECL_ACCESS. */ 1839 tree GTY ((tag ("0"))) access; 1840 1841 /* For VAR_DECL in function, this is DECL_DISCRIMINATOR. */ 1842 int GTY ((tag ("1"))) discriminator; 1843 } GTY ((desc ("%0.u.base.u2sel"))) u2; 1844}; 1845 1846/* Additional DECL_LANG_SPECIFIC information for functions. */ 1847 1848struct GTY(()) lang_decl_fn { 1849 struct lang_decl_min min; 1850 1851 /* In an overloaded operator, this is the value of 1852 DECL_OVERLOADED_OPERATOR_P. */ 1853 ENUM_BITFIELD (tree_code) operator_code : 16; 1854 1855 unsigned global_ctor_p : 1; 1856 unsigned global_dtor_p : 1; 1857 unsigned constructor_attr : 1; 1858 unsigned destructor_attr : 1; 1859 unsigned assignment_operator_p : 1; 1860 unsigned static_function : 1; 1861 unsigned pure_virtual : 1; 1862 unsigned defaulted_p : 1; 1863 1864 unsigned has_in_charge_parm_p : 1; 1865 unsigned has_vtt_parm_p : 1; 1866 unsigned pending_inline_p : 1; 1867 unsigned nonconverting : 1; 1868 unsigned thunk_p : 1; 1869 unsigned this_thunk_p : 1; 1870 unsigned hidden_friend_p : 1; 1871 /* 1 spare bit. */ 1872 1873 /* For a non-thunk function decl, this is a tree list of 1874 friendly classes. For a thunk function decl, it is the 1875 thunked to function decl. */ 1876 tree befriending_classes; 1877 1878 /* For a non-virtual FUNCTION_DECL, this is 1879 DECL_FRIEND_CONTEXT. For a virtual FUNCTION_DECL for which 1880 DECL_THIS_THUNK_P does not hold, this is DECL_THUNKS. Both 1881 this pointer and result pointer adjusting thunks are 1882 chained here. This pointer thunks to return pointer thunks 1883 will be chained on the return pointer thunk. */ 1884 tree context; 1885 1886 union lang_decl_u5 1887 { 1888 /* In a non-thunk FUNCTION_DECL or TEMPLATE_DECL, this is 1889 DECL_CLONED_FUNCTION. */ 1890 tree GTY ((tag ("0"))) cloned_function; 1891 1892 /* In a FUNCTION_DECL for which THUNK_P holds this is the 1893 THUNK_FIXED_OFFSET. */ 1894 HOST_WIDE_INT GTY ((tag ("1"))) fixed_offset; 1895 } GTY ((desc ("%1.thunk_p"))) u5; 1896 1897 union lang_decl_u3 1898 { 1899 struct cp_token_cache * GTY ((tag ("1"))) pending_inline_info; 1900 struct language_function * GTY ((tag ("0"))) 1901 saved_language_function; 1902 } GTY ((desc ("%1.pending_inline_p"))) u; 1903 1904}; 1905 1906/* DECL_LANG_SPECIFIC for namespaces. */ 1907 1908struct GTY(()) lang_decl_ns { 1909 struct lang_decl_base base; 1910 struct cp_binding_level *level; 1911}; 1912 1913/* DECL_LANG_SPECIFIC for parameters. */ 1914 1915struct GTY(()) lang_decl_parm { 1916 struct lang_decl_base base; 1917 int level; 1918 int index; 1919}; 1920 1921/* DECL_LANG_SPECIFIC for all types. It would be nice to just make this a 1922 union rather than a struct containing a union as its only field, but 1923 tree.h declares it as a struct. */ 1924 1925struct GTY((variable_size)) lang_decl { 1926 union GTY((desc ("%h.base.selector"))) lang_decl_u { 1927 struct lang_decl_base GTY ((default)) base; 1928 struct lang_decl_min GTY((tag ("0"))) min; 1929 struct lang_decl_fn GTY ((tag ("1"))) fn; 1930 struct lang_decl_ns GTY((tag ("2"))) ns; 1931 struct lang_decl_parm GTY((tag ("3"))) parm; 1932 } u; 1933}; 1934 1935/* Looks through a template (if present) to find what it declares. */ 1936#define STRIP_TEMPLATE(NODE) \ 1937 (TREE_CODE (NODE) == TEMPLATE_DECL ? DECL_TEMPLATE_RESULT (NODE) : NODE) 1938 1939#if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007) 1940 1941#define LANG_DECL_MIN_CHECK(NODE) __extension__ \ 1942({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 1943 if (!LANG_DECL_HAS_MIN (NODE)) \ 1944 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 1945 <->u.min; }) 1946 1947/* We want to be able to check DECL_CONSTRUCTOR_P and such on a function 1948 template, not just on a FUNCTION_DECL. So when looking for things in 1949 lang_decl_fn, look down through a TEMPLATE_DECL into its result. */ 1950#define LANG_DECL_FN_CHECK(NODE) __extension__ \ 1951({ struct lang_decl *lt = DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE)); \ 1952 if (!DECL_DECLARES_FUNCTION_P (NODE) || lt->u.base.selector != 1) \ 1953 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 1954 <->u.fn; }) 1955 1956#define LANG_DECL_NS_CHECK(NODE) __extension__ \ 1957({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 1958 if (TREE_CODE (NODE) != NAMESPACE_DECL || lt->u.base.selector != 2) \ 1959 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 1960 <->u.ns; }) 1961 1962#define LANG_DECL_PARM_CHECK(NODE) __extension__ \ 1963({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 1964 if (TREE_CODE (NODE) != PARM_DECL) \ 1965 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 1966 <->u.parm; }) 1967 1968#define LANG_DECL_U2_CHECK(NODE, TF) __extension__ \ 1969({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \ 1970 if (!LANG_DECL_HAS_MIN (NODE) || lt->u.base.u2sel != TF) \ 1971 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \ 1972 <->u.min.u2; }) 1973 1974#else 1975 1976#define LANG_DECL_MIN_CHECK(NODE) \ 1977 (&DECL_LANG_SPECIFIC (NODE)->u.min) 1978 1979#define LANG_DECL_FN_CHECK(NODE) \ 1980 (&DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE))->u.fn) 1981 1982#define LANG_DECL_NS_CHECK(NODE) \ 1983 (&DECL_LANG_SPECIFIC (NODE)->u.ns) 1984 1985#define LANG_DECL_PARM_CHECK(NODE) \ 1986 (&DECL_LANG_SPECIFIC (NODE)->u.parm) 1987 1988#define LANG_DECL_U2_CHECK(NODE, TF) \ 1989 (&DECL_LANG_SPECIFIC (NODE)->u.min.u2) 1990 1991#endif /* ENABLE_TREE_CHECKING */ 1992 1993/* For a FUNCTION_DECL or a VAR_DECL, the language linkage for the 1994 declaration. Some entities (like a member function in a local 1995 class, or a local variable) do not have linkage at all, and this 1996 macro should not be used in those cases. 1997 1998 Implementation note: A FUNCTION_DECL without DECL_LANG_SPECIFIC was 1999 created by language-independent code, and has C linkage. Most 2000 VAR_DECLs have C++ linkage, and do not have DECL_LANG_SPECIFIC, but 2001 we do create DECL_LANG_SPECIFIC for variables with non-C++ linkage. */ 2002#define DECL_LANGUAGE(NODE) \ 2003 (DECL_LANG_SPECIFIC (NODE) \ 2004 ? DECL_LANG_SPECIFIC (NODE)->u.base.language \ 2005 : (TREE_CODE (NODE) == FUNCTION_DECL \ 2006 ? lang_c : lang_cplusplus)) 2007 2008/* Set the language linkage for NODE to LANGUAGE. */ 2009#define SET_DECL_LANGUAGE(NODE, LANGUAGE) \ 2010 (DECL_LANG_SPECIFIC (NODE)->u.base.language = (LANGUAGE)) 2011 2012/* For FUNCTION_DECLs: nonzero means that this function is a constructor. */ 2013#define DECL_CONSTRUCTOR_P(NODE) \ 2014 (LANG_DECL_FN_CHECK (NODE)->constructor_attr) 2015 2016/* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a complete 2017 object. */ 2018#define DECL_COMPLETE_CONSTRUCTOR_P(NODE) \ 2019 (DECL_CONSTRUCTOR_P (NODE) \ 2020 && DECL_NAME (NODE) == complete_ctor_identifier) 2021 2022/* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a base 2023 object. */ 2024#define DECL_BASE_CONSTRUCTOR_P(NODE) \ 2025 (DECL_CONSTRUCTOR_P (NODE) \ 2026 && DECL_NAME (NODE) == base_ctor_identifier) 2027 2028/* Nonzero if NODE (a FUNCTION_DECL) is a constructor, but not either the 2029 specialized in-charge constructor or the specialized not-in-charge 2030 constructor. */ 2031#define DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P(NODE) \ 2032 (DECL_DECLARES_FUNCTION_P (NODE) && DECL_CONSTRUCTOR_P (NODE) \ 2033 && !DECL_CLONED_FUNCTION_P (NODE)) 2034 2035/* Nonzero if NODE (a FUNCTION_DECL) is a copy constructor. */ 2036#define DECL_COPY_CONSTRUCTOR_P(NODE) \ 2037 (DECL_CONSTRUCTOR_P (NODE) && copy_fn_p (NODE) > 0) 2038 2039/* Nonzero if NODE (a FUNCTION_DECL) is a move constructor. */ 2040#define DECL_MOVE_CONSTRUCTOR_P(NODE) \ 2041 (DECL_CONSTRUCTOR_P (NODE) && move_fn_p (NODE)) 2042 2043/* Nonzero if NODE is a destructor. */ 2044#define DECL_DESTRUCTOR_P(NODE) \ 2045 (LANG_DECL_FN_CHECK (NODE)->destructor_attr) 2046 2047/* Nonzero if NODE (a FUNCTION_DECL) is a destructor, but not the 2048 specialized in-charge constructor, in-charge deleting constructor, 2049 or the base destructor. */ 2050#define DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P(NODE) \ 2051 (DECL_DECLARES_FUNCTION_P (NODE) && DECL_DESTRUCTOR_P (NODE) \ 2052 && !DECL_CLONED_FUNCTION_P (NODE)) 2053 2054/* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete 2055 object. */ 2056#define DECL_COMPLETE_DESTRUCTOR_P(NODE) \ 2057 (DECL_DESTRUCTOR_P (NODE) \ 2058 && DECL_NAME (NODE) == complete_dtor_identifier) 2059 2060/* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a base 2061 object. */ 2062#define DECL_BASE_DESTRUCTOR_P(NODE) \ 2063 (DECL_DESTRUCTOR_P (NODE) \ 2064 && DECL_NAME (NODE) == base_dtor_identifier) 2065 2066/* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete 2067 object that deletes the object after it has been destroyed. */ 2068#define DECL_DELETING_DESTRUCTOR_P(NODE) \ 2069 (DECL_DESTRUCTOR_P (NODE) \ 2070 && DECL_NAME (NODE) == deleting_dtor_identifier) 2071 2072/* Nonzero if NODE (a FUNCTION_DECL) is a cloned constructor or 2073 destructor. */ 2074#define DECL_CLONED_FUNCTION_P(NODE) (!!decl_cloned_function_p (NODE, true)) 2075 2076/* If DECL_CLONED_FUNCTION_P holds, this is the function that was 2077 cloned. */ 2078#define DECL_CLONED_FUNCTION(NODE) (*decl_cloned_function_p (NODE, false)) 2079 2080/* Perform an action for each clone of FN, if FN is a function with 2081 clones. This macro should be used like: 2082 2083 FOR_EACH_CLONE (clone, fn) 2084 { ... } 2085 2086 */ 2087#define FOR_EACH_CLONE(CLONE, FN) \ 2088 if (TREE_CODE (FN) == FUNCTION_DECL \ 2089 && (DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (FN) \ 2090 || DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (FN))) \ 2091 for (CLONE = DECL_CHAIN (FN); \ 2092 CLONE && DECL_CLONED_FUNCTION_P (CLONE); \ 2093 CLONE = DECL_CHAIN (CLONE)) 2094 2095/* Nonzero if NODE has DECL_DISCRIMINATOR and not DECL_ACCESS. */ 2096#define DECL_DISCRIMINATOR_P(NODE) \ 2097 (TREE_CODE (NODE) == VAR_DECL \ 2098 && DECL_FUNCTION_SCOPE_P (NODE)) 2099 2100/* Discriminator for name mangling. */ 2101#define DECL_DISCRIMINATOR(NODE) (LANG_DECL_U2_CHECK (NODE, 1)->discriminator) 2102 2103/* True iff DECL_DISCRIMINATOR is set for a DECL_DISCRIMINATOR_P decl. */ 2104#define DECL_DISCRIMINATOR_SET_P(NODE) \ 2105 (DECL_LANG_SPECIFIC (NODE) && DECL_LANG_SPECIFIC (NODE)->u.base.u2sel == 1) 2106 2107/* The index of a user-declared parameter in its function, starting at 1. 2108 All artificial parameters will have index 0. */ 2109#define DECL_PARM_INDEX(NODE) \ 2110 (LANG_DECL_PARM_CHECK (NODE)->index) 2111 2112/* The level of a user-declared parameter in its function, starting at 1. 2113 A parameter of the function will have level 1; a parameter of the first 2114 nested function declarator (i.e. t in void f (void (*p)(T t))) will have 2115 level 2. */ 2116#define DECL_PARM_LEVEL(NODE) \ 2117 (LANG_DECL_PARM_CHECK (NODE)->level) 2118 2119/* Nonzero if the VTT parm has been added to NODE. */ 2120#define DECL_HAS_VTT_PARM_P(NODE) \ 2121 (LANG_DECL_FN_CHECK (NODE)->has_vtt_parm_p) 2122 2123/* Nonzero if NODE is a FUNCTION_DECL for which a VTT parameter is 2124 required. */ 2125#define DECL_NEEDS_VTT_PARM_P(NODE) \ 2126 (CLASSTYPE_VBASECLASSES (DECL_CONTEXT (NODE)) \ 2127 && (DECL_BASE_CONSTRUCTOR_P (NODE) \ 2128 || DECL_BASE_DESTRUCTOR_P (NODE))) 2129 2130/* Nonzero if NODE is a user-defined conversion operator. */ 2131#define DECL_CONV_FN_P(NODE) \ 2132 (DECL_NAME (NODE) && IDENTIFIER_TYPENAME_P (DECL_NAME (NODE))) 2133 2134/* If FN is a conversion operator, the type to which it converts. 2135 Otherwise, NULL_TREE. */ 2136#define DECL_CONV_FN_TYPE(FN) \ 2137 (DECL_CONV_FN_P (FN) ? TREE_TYPE (DECL_NAME (FN)) : NULL_TREE) 2138 2139/* Nonzero if NODE, which is a TEMPLATE_DECL, is a template 2140 conversion operator to a type dependent on the innermost template 2141 args. */ 2142#define DECL_TEMPLATE_CONV_FN_P(NODE) \ 2143 (DECL_LANG_SPECIFIC (TEMPLATE_DECL_CHECK (NODE))->u.base.template_conv_p) 2144 2145/* Nonzero if NODE, a static data member, was declared in its class as an 2146 array of unknown bound. */ 2147#define VAR_HAD_UNKNOWN_BOUND(NODE) \ 2148 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE)) \ 2149 ? DECL_LANG_SPECIFIC (NODE)->u.base.template_conv_p \ 2150 : false) 2151#define SET_VAR_HAD_UNKNOWN_BOUND(NODE) \ 2152 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))->u.base.template_conv_p = true) 2153 2154/* Set the overloaded operator code for NODE to CODE. */ 2155#define SET_OVERLOADED_OPERATOR_CODE(NODE, CODE) \ 2156 (LANG_DECL_FN_CHECK (NODE)->operator_code = (CODE)) 2157 2158/* If NODE is an overloaded operator, then this returns the TREE_CODE 2159 associated with the overloaded operator. 2160 DECL_ASSIGNMENT_OPERATOR_P must also be checked to determine 2161 whether or not NODE is an assignment operator. If NODE is not an 2162 overloaded operator, ERROR_MARK is returned. Since the numerical 2163 value of ERROR_MARK is zero, this macro can be used as a predicate 2164 to test whether or not NODE is an overloaded operator. */ 2165#define DECL_OVERLOADED_OPERATOR_P(NODE) \ 2166 (IDENTIFIER_OPNAME_P (DECL_NAME (NODE)) \ 2167 ? LANG_DECL_FN_CHECK (NODE)->operator_code : ERROR_MARK) 2168 2169/* Nonzero if NODE is an assignment operator (including += and such). */ 2170#define DECL_ASSIGNMENT_OPERATOR_P(NODE) \ 2171 (LANG_DECL_FN_CHECK (NODE)->assignment_operator_p) 2172 2173/* For FUNCTION_DECLs: nonzero means that this function is a 2174 constructor or a destructor with an extra in-charge parameter to 2175 control whether or not virtual bases are constructed. */ 2176#define DECL_HAS_IN_CHARGE_PARM_P(NODE) \ 2177 (LANG_DECL_FN_CHECK (NODE)->has_in_charge_parm_p) 2178 2179/* Nonzero if DECL is a declaration of __builtin_constant_p. */ 2180#define DECL_IS_BUILTIN_CONSTANT_P(NODE) \ 2181 (TREE_CODE (NODE) == FUNCTION_DECL \ 2182 && DECL_BUILT_IN_CLASS (NODE) == BUILT_IN_NORMAL \ 2183 && DECL_FUNCTION_CODE (NODE) == BUILT_IN_CONSTANT_P) 2184 2185/* Nonzero for _DECL means that this decl appears in (or will appear 2186 in) as a member in a RECORD_TYPE or UNION_TYPE node. It is also for 2187 detecting circularity in case members are multiply defined. In the 2188 case of a VAR_DECL, it is also used to determine how program storage 2189 should be allocated. */ 2190#define DECL_IN_AGGR_P(NODE) (DECL_LANG_FLAG_3 (NODE)) 2191 2192/* Nonzero for a VAR_DECL means that the variable's initialization (if 2193 any) has been processed. (In general, DECL_INITIALIZED_P is 2194 !DECL_EXTERN, but static data members may be initialized even if 2195 not defined.) */ 2196#define DECL_INITIALIZED_P(NODE) \ 2197 (TREE_LANG_FLAG_1 (VAR_DECL_CHECK (NODE))) 2198 2199/* Nonzero for a VAR_DECL iff an explicit initializer was provided. */ 2200#define DECL_NONTRIVIALLY_INITIALIZED_P(NODE) \ 2201 (TREE_LANG_FLAG_3 (VAR_DECL_CHECK (NODE))) 2202 2203/* Nonzero for a VAR_DECL that was initialized with a 2204 constant-expression. */ 2205#define DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P(NODE) \ 2206 (TREE_LANG_FLAG_2 (VAR_DECL_CHECK (NODE))) 2207 2208/* Nonzero if the DECL was initialized in the class definition itself, 2209 rather than outside the class. This is used for both static member 2210 VAR_DECLS, and FUNCTION_DECLS that are defined in the class. */ 2211#define DECL_INITIALIZED_IN_CLASS_P(DECL) \ 2212 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \ 2213 ->u.base.initialized_in_class) 2214 2215/* Nonzero if the DECL is used in the sense of 3.2 [basic.def.odr]. 2216 Only available for decls with DECL_LANG_SPECIFIC. */ 2217#define DECL_ODR_USED(DECL) \ 2218 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \ 2219 ->u.base.odr_used) 2220 2221/* Nonzero for DECL means that this decl is just a friend declaration, 2222 and should not be added to the list of members for this class. */ 2223#define DECL_FRIEND_P(NODE) (DECL_LANG_SPECIFIC (NODE)->u.base.friend_attr) 2224 2225/* A TREE_LIST of the types which have befriended this FUNCTION_DECL. */ 2226#define DECL_BEFRIENDING_CLASSES(NODE) \ 2227 (LANG_DECL_FN_CHECK (NODE)->befriending_classes) 2228 2229/* Nonzero for FUNCTION_DECL means that this decl is a static 2230 member function. */ 2231#define DECL_STATIC_FUNCTION_P(NODE) \ 2232 (LANG_DECL_FN_CHECK (NODE)->static_function) 2233 2234/* Nonzero for FUNCTION_DECL means that this decl is a non-static 2235 member function. */ 2236#define DECL_NONSTATIC_MEMBER_FUNCTION_P(NODE) \ 2237 (TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE) 2238 2239/* Nonzero for FUNCTION_DECL means that this decl is a member function 2240 (static or non-static). */ 2241#define DECL_FUNCTION_MEMBER_P(NODE) \ 2242 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) || DECL_STATIC_FUNCTION_P (NODE)) 2243 2244/* Nonzero for FUNCTION_DECL means that this member function 2245 has `this' as const X *const. */ 2246#define DECL_CONST_MEMFUNC_P(NODE) \ 2247 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \ 2248 && CP_TYPE_CONST_P (TREE_TYPE (TREE_VALUE \ 2249 (TYPE_ARG_TYPES (TREE_TYPE (NODE)))))) 2250 2251/* Nonzero for FUNCTION_DECL means that this member function 2252 has `this' as volatile X *const. */ 2253#define DECL_VOLATILE_MEMFUNC_P(NODE) \ 2254 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \ 2255 && CP_TYPE_VOLATILE_P (TREE_TYPE (TREE_VALUE \ 2256 (TYPE_ARG_TYPES (TREE_TYPE (NODE)))))) 2257 2258/* Nonzero for a DECL means that this member is a non-static member. */ 2259#define DECL_NONSTATIC_MEMBER_P(NODE) \ 2260 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \ 2261 || TREE_CODE (NODE) == FIELD_DECL) 2262 2263/* Nonzero for _DECL means that this member object type 2264 is mutable. */ 2265#define DECL_MUTABLE_P(NODE) (DECL_LANG_FLAG_0 (NODE)) 2266 2267/* Nonzero for _DECL means that this constructor or conversion function is 2268 non-converting. */ 2269#define DECL_NONCONVERTING_P(NODE) \ 2270 (LANG_DECL_FN_CHECK (NODE)->nonconverting) 2271 2272/* Nonzero for FUNCTION_DECL means that this member function is a pure 2273 virtual function. */ 2274#define DECL_PURE_VIRTUAL_P(NODE) \ 2275 (LANG_DECL_FN_CHECK (NODE)->pure_virtual) 2276 2277/* True (in a FUNCTION_DECL) if NODE is a virtual function that is an 2278 invalid overrider for a function from a base class. Once we have 2279 complained about an invalid overrider we avoid complaining about it 2280 again. */ 2281#define DECL_INVALID_OVERRIDER_P(NODE) \ 2282 (DECL_LANG_FLAG_4 (NODE)) 2283 2284/* The thunks associated with NODE, a FUNCTION_DECL. */ 2285#define DECL_THUNKS(NODE) \ 2286 (LANG_DECL_FN_CHECK (NODE)->context) 2287 2288/* Nonzero if NODE is a thunk, rather than an ordinary function. */ 2289#define DECL_THUNK_P(NODE) \ 2290 (TREE_CODE (NODE) == FUNCTION_DECL \ 2291 && DECL_LANG_SPECIFIC (NODE) \ 2292 && LANG_DECL_FN_CHECK (NODE)->thunk_p) 2293 2294/* Set DECL_THUNK_P for node. */ 2295#define SET_DECL_THUNK_P(NODE, THIS_ADJUSTING) \ 2296 (LANG_DECL_FN_CHECK (NODE)->thunk_p = 1, \ 2297 LANG_DECL_FN_CHECK (NODE)->this_thunk_p = (THIS_ADJUSTING)) 2298 2299/* Nonzero if NODE is a this pointer adjusting thunk. */ 2300#define DECL_THIS_THUNK_P(NODE) \ 2301 (DECL_THUNK_P (NODE) && LANG_DECL_FN_CHECK (NODE)->this_thunk_p) 2302 2303/* Nonzero if NODE is a result pointer adjusting thunk. */ 2304#define DECL_RESULT_THUNK_P(NODE) \ 2305 (DECL_THUNK_P (NODE) && !LANG_DECL_FN_CHECK (NODE)->this_thunk_p) 2306 2307/* Nonzero if NODE is a FUNCTION_DECL, but not a thunk. */ 2308#define DECL_NON_THUNK_FUNCTION_P(NODE) \ 2309 (TREE_CODE (NODE) == FUNCTION_DECL && !DECL_THUNK_P (NODE)) 2310 2311/* Nonzero if NODE is `extern "C"'. */ 2312#define DECL_EXTERN_C_P(NODE) \ 2313 (DECL_LANGUAGE (NODE) == lang_c) 2314 2315/* Nonzero if NODE is an `extern "C"' function. */ 2316#define DECL_EXTERN_C_FUNCTION_P(NODE) \ 2317 (DECL_NON_THUNK_FUNCTION_P (NODE) && DECL_EXTERN_C_P (NODE)) 2318 2319/* True iff DECL is an entity with vague linkage whose definition is 2320 available in this translation unit. */ 2321#define DECL_REPO_AVAILABLE_P(NODE) \ 2322 (DECL_LANG_SPECIFIC (NODE)->u.base.repo_available_p) 2323 2324/* True if DECL is declared 'constexpr'. */ 2325#define DECL_DECLARED_CONSTEXPR_P(DECL) \ 2326 DECL_LANG_FLAG_8 (VAR_OR_FUNCTION_DECL_CHECK (STRIP_TEMPLATE (DECL))) 2327 2328/* Nonzero if this DECL is the __PRETTY_FUNCTION__ variable in a 2329 template function. */ 2330#define DECL_PRETTY_FUNCTION_P(NODE) \ 2331 (TREE_LANG_FLAG_0 (VAR_DECL_CHECK (NODE))) 2332 2333/* The _TYPE context in which this _DECL appears. This field holds the 2334 class where a virtual function instance is actually defined. */ 2335#define DECL_CLASS_CONTEXT(NODE) \ 2336 (DECL_CLASS_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : NULL_TREE) 2337 2338/* For a non-member friend function, the class (if any) in which this 2339 friend was defined. For example, given: 2340 2341 struct S { friend void f (); }; 2342 2343 the DECL_FRIEND_CONTEXT for `f' will be `S'. */ 2344#define DECL_FRIEND_CONTEXT(NODE) \ 2345 ((DECL_DECLARES_FUNCTION_P (NODE) \ 2346 && DECL_FRIEND_P (NODE) && !DECL_FUNCTION_MEMBER_P (NODE)) \ 2347 ? LANG_DECL_FN_CHECK (NODE)->context \ 2348 : NULL_TREE) 2349 2350/* Set the DECL_FRIEND_CONTEXT for NODE to CONTEXT. */ 2351#define SET_DECL_FRIEND_CONTEXT(NODE, CONTEXT) \ 2352 (LANG_DECL_FN_CHECK (NODE)->context = (CONTEXT)) 2353 2354#define CP_DECL_CONTEXT(NODE) \ 2355 (!DECL_FILE_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : global_namespace) 2356#define CP_TYPE_CONTEXT(NODE) \ 2357 (!TYPE_FILE_SCOPE_P (NODE) ? TYPE_CONTEXT (NODE) : global_namespace) 2358#define FROB_CONTEXT(NODE) \ 2359 ((NODE) == global_namespace ? DECL_CONTEXT (NODE) : (NODE)) 2360 2361/* 1 iff NODE has namespace scope, including the global namespace. */ 2362#define DECL_NAMESPACE_SCOPE_P(NODE) \ 2363 (!DECL_TEMPLATE_PARM_P (NODE) \ 2364 && TREE_CODE (CP_DECL_CONTEXT (NODE)) == NAMESPACE_DECL) 2365 2366#define TYPE_NAMESPACE_SCOPE_P(NODE) \ 2367 (TREE_CODE (CP_TYPE_CONTEXT (NODE)) == NAMESPACE_DECL) 2368 2369#define NAMESPACE_SCOPE_P(NODE) \ 2370 ((DECL_P (NODE) && DECL_NAMESPACE_SCOPE_P (NODE)) \ 2371 || (TYPE_P (NODE) && TYPE_NAMESPACE_SCOPE_P (NODE))) 2372 2373/* 1 iff NODE is a class member. */ 2374#define DECL_CLASS_SCOPE_P(NODE) \ 2375 (DECL_CONTEXT (NODE) && TYPE_P (DECL_CONTEXT (NODE))) 2376 2377#define TYPE_CLASS_SCOPE_P(NODE) \ 2378 (TYPE_CONTEXT (NODE) && TYPE_P (TYPE_CONTEXT (NODE))) 2379 2380/* 1 iff NODE is function-local. */ 2381#define DECL_FUNCTION_SCOPE_P(NODE) \ 2382 (DECL_CONTEXT (NODE) \ 2383 && TREE_CODE (DECL_CONTEXT (NODE)) == FUNCTION_DECL) 2384 2385#define TYPE_FUNCTION_SCOPE_P(NODE) \ 2386 (TYPE_CONTEXT (NODE) && TREE_CODE (TYPE_CONTEXT (NODE)) == FUNCTION_DECL) 2387 2388/* 1 iff VAR_DECL node NODE is a type-info decl. This flag is set for 2389 both the primary typeinfo object and the associated NTBS name. */ 2390#define DECL_TINFO_P(NODE) TREE_LANG_FLAG_4 (VAR_DECL_CHECK (NODE)) 2391 2392/* 1 iff VAR_DECL node NODE is virtual table or VTT. */ 2393#define DECL_VTABLE_OR_VTT_P(NODE) TREE_LANG_FLAG_5 (VAR_DECL_CHECK (NODE)) 2394 2395/* Returns 1 iff VAR_DECL is a construction virtual table. 2396 DECL_VTABLE_OR_VTT_P will be true in this case and must be checked 2397 before using this macro. */ 2398#define DECL_CONSTRUCTION_VTABLE_P(NODE) \ 2399 TREE_LANG_FLAG_6 (VAR_DECL_CHECK (NODE)) 2400 2401/* 1 iff NODE is function-local, but for types. */ 2402#define LOCAL_CLASS_P(NODE) \ 2403 (decl_function_context (TYPE_MAIN_DECL (NODE)) != NULL_TREE) 2404 2405/* For a NAMESPACE_DECL: the list of using namespace directives 2406 The PURPOSE is the used namespace, the value is the namespace 2407 that is the common ancestor. */ 2408#define DECL_NAMESPACE_USING(NODE) DECL_VINDEX (NAMESPACE_DECL_CHECK (NODE)) 2409 2410/* In a NAMESPACE_DECL, the DECL_INITIAL is used to record all users 2411 of a namespace, to record the transitive closure of using namespace. */ 2412#define DECL_NAMESPACE_USERS(NODE) DECL_INITIAL (NAMESPACE_DECL_CHECK (NODE)) 2413 2414/* In a NAMESPACE_DECL, the list of namespaces which have associated 2415 themselves with this one. */ 2416#define DECL_NAMESPACE_ASSOCIATIONS(NODE) \ 2417 (NAMESPACE_DECL_CHECK (NODE)->decl_non_common.saved_tree) 2418 2419/* In a NAMESPACE_DECL, points to the original namespace if this is 2420 a namespace alias. */ 2421#define DECL_NAMESPACE_ALIAS(NODE) \ 2422 DECL_ABSTRACT_ORIGIN (NAMESPACE_DECL_CHECK (NODE)) 2423#define ORIGINAL_NAMESPACE(NODE) \ 2424 (DECL_NAMESPACE_ALIAS (NODE) ? DECL_NAMESPACE_ALIAS (NODE) : (NODE)) 2425 2426/* Nonzero if NODE is the std namespace. */ 2427#define DECL_NAMESPACE_STD_P(NODE) \ 2428 (TREE_CODE (NODE) == NAMESPACE_DECL \ 2429 && CP_DECL_CONTEXT (NODE) == global_namespace \ 2430 && DECL_NAME (NODE) == std_identifier) 2431 2432/* In a TREE_LIST concatenating using directives, indicate indirect 2433 directives */ 2434#define TREE_INDIRECT_USING(NODE) (TREE_LIST_CHECK (NODE)->base.lang_flag_0) 2435 2436/* In a TREE_LIST in an attribute list, indicates that the attribute 2437 must be applied at instantiation time. */ 2438#define ATTR_IS_DEPENDENT(NODE) (TREE_LIST_CHECK (NODE)->base.lang_flag_0) 2439 2440extern tree decl_shadowed_for_var_lookup (tree); 2441extern void decl_shadowed_for_var_insert (tree, tree); 2442 2443/* Non zero if this is a using decl for a dependent scope. */ 2444#define DECL_DEPENDENT_P(NODE) DECL_LANG_FLAG_0 (USING_DECL_CHECK (NODE)) 2445 2446/* The scope named in a using decl. */ 2447#define USING_DECL_SCOPE(NODE) TREE_TYPE (USING_DECL_CHECK (NODE)) 2448 2449/* The decls named by a using decl. */ 2450#define USING_DECL_DECLS(NODE) DECL_INITIAL (USING_DECL_CHECK (NODE)) 2451 2452/* In a VAR_DECL, true if we have a shadowed local variable 2453 in the shadowed var table for this VAR_DECL. */ 2454#define DECL_HAS_SHADOWED_FOR_VAR_P(NODE) \ 2455 (VAR_DECL_CHECK (NODE)->decl_with_vis.shadowed_for_var_p) 2456 2457/* In a VAR_DECL for a variable declared in a for statement, 2458 this is the shadowed (local) variable. */ 2459#define DECL_SHADOWED_FOR_VAR(NODE) \ 2460 (DECL_HAS_SHADOWED_FOR_VAR_P(NODE) ? decl_shadowed_for_var_lookup (NODE) : NULL) 2461 2462#define SET_DECL_SHADOWED_FOR_VAR(NODE, VAL) \ 2463 (decl_shadowed_for_var_insert (NODE, VAL)) 2464 2465/* In a FUNCTION_DECL, this is nonzero if this function was defined in 2466 the class definition. We have saved away the text of the function, 2467 but have not yet processed it. */ 2468#define DECL_PENDING_INLINE_P(NODE) \ 2469 (LANG_DECL_FN_CHECK (NODE)->pending_inline_p) 2470 2471/* If DECL_PENDING_INLINE_P holds, this is the saved text of the 2472 function. */ 2473#define DECL_PENDING_INLINE_INFO(NODE) \ 2474 (LANG_DECL_FN_CHECK (NODE)->u.pending_inline_info) 2475 2476/* For a class type: if this structure has many fields, we'll sort them 2477 and put them into a TREE_VEC. */ 2478#define CLASSTYPE_SORTED_FIELDS(NODE) \ 2479 (LANG_TYPE_CLASS_CHECK (NODE)->sorted_fields) 2480 2481/* If non-NULL for a VAR_DECL, FUNCTION_DECL, TYPE_DECL or 2482 TEMPLATE_DECL, the entity is either a template specialization (if 2483 DECL_USE_TEMPLATE is nonzero) or the abstract instance of the 2484 template itself. 2485 2486 In either case, DECL_TEMPLATE_INFO is a TREE_LIST, whose 2487 TREE_PURPOSE is the TEMPLATE_DECL of which this entity is a 2488 specialization or abstract instance. The TREE_VALUE is the 2489 template arguments used to specialize the template. 2490 2491 Consider: 2492 2493 template <typename T> struct S { friend void f(T) {} }; 2494 2495 In this case, S<int>::f is, from the point of view of the compiler, 2496 an instantiation of a template -- but, from the point of view of 2497 the language, each instantiation of S results in a wholly unrelated 2498 global function f. In this case, DECL_TEMPLATE_INFO for S<int>::f 2499 will be non-NULL, but DECL_USE_TEMPLATE will be zero. */ 2500#define DECL_TEMPLATE_INFO(NODE) \ 2501 (DECL_LANG_SPECIFIC (VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK (NODE)) \ 2502 ->u.min.template_info) 2503 2504/* For a VAR_DECL, indicates that the variable is actually a 2505 non-static data member of anonymous union that has been promoted to 2506 variable status. */ 2507#define DECL_ANON_UNION_VAR_P(NODE) \ 2508 (DECL_LANG_FLAG_4 (VAR_DECL_CHECK (NODE))) 2509 2510/* Template information for a RECORD_TYPE or UNION_TYPE. */ 2511#define CLASSTYPE_TEMPLATE_INFO(NODE) \ 2512 (LANG_TYPE_CLASS_CHECK (RECORD_OR_UNION_CHECK (NODE))->template_info) 2513 2514/* Template information for an ENUMERAL_TYPE. Although an enumeration may 2515 not be a primary template, it may be declared within the scope of a 2516 primary template and the enumeration constants may depend on 2517 non-type template parameters. */ 2518#define ENUM_TEMPLATE_INFO(NODE) \ 2519 (TYPE_LANG_SLOT_1 (ENUMERAL_TYPE_CHECK (NODE))) 2520 2521/* Template information for a template template parameter. */ 2522#define TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO(NODE) \ 2523 (LANG_TYPE_CLASS_CHECK (BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK (NODE)) \ 2524 ->template_info) 2525 2526/* Template information for an ENUMERAL_, RECORD_, or UNION_TYPE. */ 2527#define TYPE_TEMPLATE_INFO(NODE) \ 2528 (TREE_CODE (NODE) == ENUMERAL_TYPE \ 2529 ? ENUM_TEMPLATE_INFO (NODE) : \ 2530 (TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM \ 2531 ? TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO (NODE) : \ 2532 (TYPE_LANG_SPECIFIC (NODE) \ 2533 ? CLASSTYPE_TEMPLATE_INFO (NODE) \ 2534 : NULL_TREE))) 2535 2536/* Set the template information for an ENUMERAL_, RECORD_, or 2537 UNION_TYPE to VAL. */ 2538#define SET_TYPE_TEMPLATE_INFO(NODE, VAL) \ 2539 (TREE_CODE (NODE) == ENUMERAL_TYPE \ 2540 ? (ENUM_TEMPLATE_INFO (NODE) = (VAL)) \ 2541 : (CLASSTYPE_TEMPLATE_INFO (NODE) = (VAL))) 2542 2543#define TI_TEMPLATE(NODE) TREE_TYPE (TEMPLATE_INFO_CHECK (NODE)) 2544#define TI_ARGS(NODE) TREE_CHAIN (TEMPLATE_INFO_CHECK (NODE)) 2545#define TI_PENDING_TEMPLATE_FLAG(NODE) TREE_LANG_FLAG_1 (NODE) 2546/* For a given TREE_VEC containing a template argument list, 2547 this property contains the number of arguments that are not 2548 defaulted. */ 2549#define NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) TREE_CHAIN (TREE_VEC_CHECK (NODE)) 2550/* Below are the setter and getter of the NON_DEFAULT_TEMPLATE_ARGS_COUNT 2551 property. */ 2552#define SET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE, INT_VALUE) \ 2553 NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) = build_int_cst (NULL_TREE, INT_VALUE) 2554#ifdef ENABLE_CHECKING 2555#define GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) \ 2556 int_cst_value (NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE)) 2557#else 2558#define GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) \ 2559 NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE) \ 2560 ? int_cst_value (NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE)) \ 2561 : TREE_VEC_LENGTH (INNERMOST_TEMPLATE_ARGS (NODE)) 2562#endif 2563/* The list of typedefs - used in the template - that need 2564 access checking at template instantiation time. */ 2565#define TI_TYPEDEFS_NEEDING_ACCESS_CHECKING(NODE) \ 2566 ((struct tree_template_info*)TEMPLATE_INFO_CHECK \ 2567 (NODE))->typedefs_needing_access_checking 2568 2569/* We use TREE_VECs to hold template arguments. If there is only one 2570 level of template arguments, then the TREE_VEC contains the 2571 arguments directly. If there is more than one level of template 2572 arguments, then each entry in the TREE_VEC is itself a TREE_VEC, 2573 containing the template arguments for a single level. The first 2574 entry in the outer TREE_VEC is the outermost level of template 2575 parameters; the last is the innermost. 2576 2577 It is incorrect to ever form a template argument vector containing 2578 only one level of arguments, but which is a TREE_VEC containing as 2579 its only entry the TREE_VEC for that level. 2580 2581 For each TREE_VEC containing the template arguments for a single 2582 level, it's possible to get or set the number of non defaulted 2583 template arguments by using the accessor macros 2584 GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT or 2585 SET_NON_DEFAULT_TEMPLATE_ARGS_COUNT. */ 2586 2587/* Nonzero if the template arguments is actually a vector of vectors, 2588 rather than just a vector. */ 2589#define TMPL_ARGS_HAVE_MULTIPLE_LEVELS(NODE) \ 2590 (NODE && TREE_VEC_LENGTH (NODE) && TREE_VEC_ELT (NODE, 0) \ 2591 && TREE_CODE (TREE_VEC_ELT (NODE, 0)) == TREE_VEC) 2592 2593/* The depth of a template argument vector. When called directly by 2594 the parser, we use a TREE_LIST rather than a TREE_VEC to represent 2595 template arguments. In fact, we may even see NULL_TREE if there 2596 are no template arguments. In both of those cases, there is only 2597 one level of template arguments. */ 2598#define TMPL_ARGS_DEPTH(NODE) \ 2599 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (NODE) ? TREE_VEC_LENGTH (NODE) : 1) 2600 2601/* The LEVELth level of the template ARGS. The outermost level of 2602 args is level 1, not level 0. */ 2603#define TMPL_ARGS_LEVEL(ARGS, LEVEL) \ 2604 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (ARGS) \ 2605 ? TREE_VEC_ELT (ARGS, (LEVEL) - 1) : (ARGS)) 2606 2607/* Set the LEVELth level of the template ARGS to VAL. This macro does 2608 not work with single-level argument vectors. */ 2609#define SET_TMPL_ARGS_LEVEL(ARGS, LEVEL, VAL) \ 2610 (TREE_VEC_ELT (ARGS, (LEVEL) - 1) = (VAL)) 2611 2612/* Accesses the IDXth parameter in the LEVELth level of the ARGS. */ 2613#define TMPL_ARG(ARGS, LEVEL, IDX) \ 2614 (TREE_VEC_ELT (TMPL_ARGS_LEVEL (ARGS, LEVEL), IDX)) 2615 2616/* Given a single level of template arguments in NODE, return the 2617 number of arguments. */ 2618#define NUM_TMPL_ARGS(NODE) \ 2619 (TREE_VEC_LENGTH (NODE)) 2620 2621/* Returns the innermost level of template arguments in ARGS. */ 2622#define INNERMOST_TEMPLATE_ARGS(NODE) \ 2623 (get_innermost_template_args ((NODE), 1)) 2624 2625/* The number of levels of template parameters given by NODE. */ 2626#define TMPL_PARMS_DEPTH(NODE) \ 2627 ((HOST_WIDE_INT) TREE_INT_CST_LOW (TREE_PURPOSE (NODE))) 2628 2629/* The TEMPLATE_DECL instantiated or specialized by NODE. This 2630 TEMPLATE_DECL will be the immediate parent, not the most general 2631 template. For example, in: 2632 2633 template <class T> struct S { template <class U> void f(U); } 2634 2635 the FUNCTION_DECL for S<int>::f<double> will have, as its 2636 DECL_TI_TEMPLATE, `template <class U> S<int>::f<U>'. 2637 2638 As a special case, for a member friend template of a template 2639 class, this value will not be a TEMPLATE_DECL, but rather an 2640 IDENTIFIER_NODE or OVERLOAD indicating the name of the template and 2641 any explicit template arguments provided. For example, in: 2642 2643 template <class T> struct S { friend void f<int>(int, double); } 2644 2645 the DECL_TI_TEMPLATE will be an IDENTIFIER_NODE for `f' and the 2646 DECL_TI_ARGS will be {int}. */ 2647#define DECL_TI_TEMPLATE(NODE) TI_TEMPLATE (DECL_TEMPLATE_INFO (NODE)) 2648 2649/* The template arguments used to obtain this decl from the most 2650 general form of DECL_TI_TEMPLATE. For the example given for 2651 DECL_TI_TEMPLATE, the DECL_TI_ARGS will be {int, double}. These 2652 are always the full set of arguments required to instantiate this 2653 declaration from the most general template specialized here. */ 2654#define DECL_TI_ARGS(NODE) TI_ARGS (DECL_TEMPLATE_INFO (NODE)) 2655 2656/* The TEMPLATE_DECL associated with NODE, a class type. Even if NODE 2657 will be generated from a partial specialization, the TEMPLATE_DECL 2658 referred to here will be the original template. For example, 2659 given: 2660 2661 template <typename T> struct S {}; 2662 template <typename T> struct S<T*> {}; 2663 2664 the CLASSTPYE_TI_TEMPLATE for S<int*> will be S, not the S<T*>. */ 2665#define CLASSTYPE_TI_TEMPLATE(NODE) TI_TEMPLATE (CLASSTYPE_TEMPLATE_INFO (NODE)) 2666#define CLASSTYPE_TI_ARGS(NODE) TI_ARGS (CLASSTYPE_TEMPLATE_INFO (NODE)) 2667 2668/* For a template instantiation TYPE, returns the TYPE corresponding 2669 to the primary template. Otherwise returns TYPE itself. */ 2670#define CLASSTYPE_PRIMARY_TEMPLATE_TYPE(TYPE) \ 2671 ((CLASSTYPE_USE_TEMPLATE ((TYPE)) \ 2672 && !CLASSTYPE_TEMPLATE_SPECIALIZATION ((TYPE))) \ 2673 ? TREE_TYPE (DECL_TEMPLATE_RESULT (DECL_PRIMARY_TEMPLATE \ 2674 (CLASSTYPE_TI_TEMPLATE ((TYPE))))) \ 2675 : (TYPE)) 2676 2677/* Like CLASS_TI_TEMPLATE, but also works for ENUMERAL_TYPEs. */ 2678#define TYPE_TI_TEMPLATE(NODE) \ 2679 (TI_TEMPLATE (TYPE_TEMPLATE_INFO (NODE))) 2680 2681/* Like DECL_TI_ARGS, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */ 2682#define TYPE_TI_ARGS(NODE) \ 2683 (TI_ARGS (TYPE_TEMPLATE_INFO (NODE))) 2684 2685#define INNERMOST_TEMPLATE_PARMS(NODE) TREE_VALUE (NODE) 2686 2687/* Nonzero if NODE (a TEMPLATE_DECL) is a member template, in the 2688 sense of [temp.mem]. */ 2689#define DECL_MEMBER_TEMPLATE_P(NODE) \ 2690 (DECL_LANG_FLAG_1 (TEMPLATE_DECL_CHECK (NODE))) 2691 2692/* Nonzero if the NODE corresponds to the template parameters for a 2693 member template, whose inline definition is being processed after 2694 the class definition is complete. */ 2695#define TEMPLATE_PARMS_FOR_INLINE(NODE) TREE_LANG_FLAG_1 (NODE) 2696 2697/* Determine if a parameter (i.e., a PARM_DECL) is a function 2698 parameter pack. */ 2699#define FUNCTION_PARAMETER_PACK_P(NODE) \ 2700 (DECL_LANG_FLAG_1 (PARM_DECL_CHECK (NODE))) 2701 2702/* Determines if NODE is an expansion of one or more parameter packs, 2703 e.g., a TYPE_PACK_EXPANSION or EXPR_PACK_EXPANSION. */ 2704#define PACK_EXPANSION_P(NODE) \ 2705 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION \ 2706 || TREE_CODE (NODE) == EXPR_PACK_EXPANSION) 2707 2708/* Extracts the type or expression pattern from a TYPE_PACK_EXPANSION or 2709 EXPR_PACK_EXPANSION. */ 2710#define PACK_EXPANSION_PATTERN(NODE) \ 2711 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION? TREE_TYPE (NODE) \ 2712 : TREE_OPERAND (NODE, 0)) 2713 2714/* Sets the type or expression pattern for a TYPE_PACK_EXPANSION or 2715 EXPR_PACK_EXPANSION. */ 2716#define SET_PACK_EXPANSION_PATTERN(NODE,VALUE) \ 2717 if (TREE_CODE (NODE) == TYPE_PACK_EXPANSION) \ 2718 TREE_TYPE (NODE) = VALUE; \ 2719 else \ 2720 TREE_OPERAND (NODE, 0) = VALUE 2721 2722/* The list of parameter packs used in the PACK_EXPANSION_* node. The 2723 TREE_VALUE of each TREE_LIST contains the parameter packs. */ 2724#define PACK_EXPANSION_PARAMETER_PACKS(NODE) TREE_CHAIN (NODE) 2725 2726/* Determine if this is an argument pack. */ 2727#define ARGUMENT_PACK_P(NODE) \ 2728 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK \ 2729 || TREE_CODE (NODE) == NONTYPE_ARGUMENT_PACK) 2730 2731/* The arguments stored in an argument pack. Arguments are stored in a 2732 TREE_VEC, which may have length zero. */ 2733#define ARGUMENT_PACK_ARGS(NODE) \ 2734 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK? TREE_TYPE (NODE) \ 2735 : TREE_OPERAND (NODE, 0)) 2736 2737/* Set the arguments stored in an argument pack. VALUE must be a 2738 TREE_VEC. */ 2739#define SET_ARGUMENT_PACK_ARGS(NODE,VALUE) \ 2740 if (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK) \ 2741 TREE_TYPE (NODE) = VALUE; \ 2742 else \ 2743 TREE_OPERAND (NODE, 0) = VALUE 2744 2745/* Whether the argument pack is "incomplete", meaning that more 2746 arguments can still be deduced. Incomplete argument packs are only 2747 used when the user has provided an explicit template argument list 2748 for a variadic function template. Some of the explicit template 2749 arguments will be placed into the beginning of the argument pack, 2750 but additional arguments might still be deduced. */ 2751#define ARGUMENT_PACK_INCOMPLETE_P(NODE) \ 2752 TREE_LANG_FLAG_0 (ARGUMENT_PACK_ARGS (NODE)) 2753 2754/* When ARGUMENT_PACK_INCOMPLETE_P, stores the explicit template 2755 arguments used to fill this pack. */ 2756#define ARGUMENT_PACK_EXPLICIT_ARGS(NODE) \ 2757 TREE_TYPE (ARGUMENT_PACK_ARGS (NODE)) 2758 2759/* In an ARGUMENT_PACK_SELECT, the argument pack from which an 2760 argument will be selected. */ 2761#define ARGUMENT_PACK_SELECT_FROM_PACK(NODE) \ 2762 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->argument_pack) 2763 2764/* In an ARGUMENT_PACK_SELECT, the index of the argument we want to 2765 select. */ 2766#define ARGUMENT_PACK_SELECT_INDEX(NODE) \ 2767 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->index) 2768 2769/* In an ARGUMENT_PACK_SELECT, the actual underlying argument that the 2770 ARGUMENT_PACK_SELECT represents. */ 2771#define ARGUMENT_PACK_SELECT_ARG(NODE) \ 2772 TREE_VEC_ELT (ARGUMENT_PACK_ARGS (ARGUMENT_PACK_SELECT_FROM_PACK (NODE)), \ 2773 ARGUMENT_PACK_SELECT_INDEX (NODE)); 2774 2775/* In a FUNCTION_DECL, the saved language-specific per-function data. */ 2776#define DECL_SAVED_FUNCTION_DATA(NODE) \ 2777 (LANG_DECL_FN_CHECK (FUNCTION_DECL_CHECK (NODE)) \ 2778 ->u.saved_language_function) 2779 2780/* Indicates an indirect_expr is for converting a reference. */ 2781#define REFERENCE_REF_P(NODE) \ 2782 TREE_LANG_FLAG_0 (INDIRECT_REF_CHECK (NODE)) 2783 2784#define NEW_EXPR_USE_GLOBAL(NODE) \ 2785 TREE_LANG_FLAG_0 (NEW_EXPR_CHECK (NODE)) 2786#define DELETE_EXPR_USE_GLOBAL(NODE) \ 2787 TREE_LANG_FLAG_0 (DELETE_EXPR_CHECK (NODE)) 2788#define DELETE_EXPR_USE_VEC(NODE) \ 2789 TREE_LANG_FLAG_1 (DELETE_EXPR_CHECK (NODE)) 2790 2791/* Indicates that this is a non-dependent COMPOUND_EXPR which will 2792 resolve to a function call. */ 2793#define COMPOUND_EXPR_OVERLOADED(NODE) \ 2794 TREE_LANG_FLAG_0 (COMPOUND_EXPR_CHECK (NODE)) 2795 2796/* In a CALL_EXPR appearing in a template, true if Koenig lookup 2797 should be performed at instantiation time. */ 2798#define KOENIG_LOOKUP_P(NODE) TREE_LANG_FLAG_0 (CALL_EXPR_CHECK (NODE)) 2799 2800/* Indicates whether a string literal has been parenthesized. Such 2801 usages are disallowed in certain circumstances. */ 2802 2803#define PAREN_STRING_LITERAL_P(NODE) \ 2804 TREE_LANG_FLAG_0 (STRING_CST_CHECK (NODE)) 2805 2806/* Nonzero if this AGGR_INIT_EXPR provides for initialization via a 2807 constructor call, rather than an ordinary function call. */ 2808#define AGGR_INIT_VIA_CTOR_P(NODE) \ 2809 TREE_LANG_FLAG_0 (AGGR_INIT_EXPR_CHECK (NODE)) 2810 2811/* Nonzero if expanding this AGGR_INIT_EXPR should first zero-initialize 2812 the object. */ 2813#define AGGR_INIT_ZERO_FIRST(NODE) \ 2814 TREE_LANG_FLAG_2 (AGGR_INIT_EXPR_CHECK (NODE)) 2815 2816/* AGGR_INIT_EXPR accessors. These are equivalent to the CALL_EXPR 2817 accessors, except for AGGR_INIT_EXPR_SLOT (which takes the place of 2818 CALL_EXPR_STATIC_CHAIN). */ 2819 2820#define AGGR_INIT_EXPR_FN(NODE) TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 1) 2821#define AGGR_INIT_EXPR_SLOT(NODE) \ 2822 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 2) 2823#define AGGR_INIT_EXPR_ARG(NODE, I) \ 2824 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), (I) + 3) 2825#define aggr_init_expr_nargs(NODE) (VL_EXP_OPERAND_LENGTH(NODE) - 3) 2826 2827/* AGGR_INIT_EXPR_ARGP returns a pointer to the argument vector for NODE. 2828 We can't use &AGGR_INIT_EXPR_ARG (NODE, 0) because that will complain if 2829 the argument count is zero when checking is enabled. Instead, do 2830 the pointer arithmetic to advance past the 3 fixed operands in a 2831 AGGR_INIT_EXPR. That produces a valid pointer to just past the end of 2832 the operand array, even if it's not valid to dereference it. */ 2833#define AGGR_INIT_EXPR_ARGP(NODE) \ 2834 (&(TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 0)) + 3) 2835 2836/* Abstract iterators for AGGR_INIT_EXPRs. */ 2837 2838/* Structure containing iterator state. */ 2839typedef struct aggr_init_expr_arg_iterator_d { 2840 tree t; /* the aggr_init_expr */ 2841 int n; /* argument count */ 2842 int i; /* next argument index */ 2843} aggr_init_expr_arg_iterator; 2844 2845/* Initialize the abstract argument list iterator object ITER with the 2846 arguments from AGGR_INIT_EXPR node EXP. */ 2847static inline void 2848init_aggr_init_expr_arg_iterator (tree exp, 2849 aggr_init_expr_arg_iterator *iter) 2850{ 2851 iter->t = exp; 2852 iter->n = aggr_init_expr_nargs (exp); 2853 iter->i = 0; 2854} 2855 2856/* Return the next argument from abstract argument list iterator object ITER, 2857 and advance its state. Return NULL_TREE if there are no more arguments. */ 2858static inline tree 2859next_aggr_init_expr_arg (aggr_init_expr_arg_iterator *iter) 2860{ 2861 tree result; 2862 if (iter->i >= iter->n) 2863 return NULL_TREE; 2864 result = AGGR_INIT_EXPR_ARG (iter->t, iter->i); 2865 iter->i++; 2866 return result; 2867} 2868 2869/* Initialize the abstract argument list iterator object ITER, then advance 2870 past and return the first argument. Useful in for expressions, e.g. 2871 for (arg = first_aggr_init_expr_arg (exp, &iter); arg; 2872 arg = next_aggr_init_expr_arg (&iter)) */ 2873static inline tree 2874first_aggr_init_expr_arg (tree exp, aggr_init_expr_arg_iterator *iter) 2875{ 2876 init_aggr_init_expr_arg_iterator (exp, iter); 2877 return next_aggr_init_expr_arg (iter); 2878} 2879 2880/* Test whether there are more arguments in abstract argument list iterator 2881 ITER, without changing its state. */ 2882static inline bool 2883more_aggr_init_expr_args_p (const aggr_init_expr_arg_iterator *iter) 2884{ 2885 return (iter->i < iter->n); 2886} 2887 2888/* Iterate through each argument ARG of AGGR_INIT_EXPR CALL, using variable 2889 ITER (of type aggr_init_expr_arg_iterator) to hold the iteration state. */ 2890#define FOR_EACH_AGGR_INIT_EXPR_ARG(arg, iter, call) \ 2891 for ((arg) = first_aggr_init_expr_arg ((call), &(iter)); (arg); \ 2892 (arg) = next_aggr_init_expr_arg (&(iter))) 2893 2894/* VEC_INIT_EXPR accessors. */ 2895#define VEC_INIT_EXPR_SLOT(NODE) TREE_OPERAND (NODE, 0) 2896#define VEC_INIT_EXPR_INIT(NODE) TREE_OPERAND (NODE, 1) 2897 2898/* Indicates that a VEC_INIT_EXPR is a potential constant expression. 2899 Only set when the current function is constexpr. */ 2900#define VEC_INIT_EXPR_IS_CONSTEXPR(NODE) \ 2901 TREE_LANG_FLAG_0 (VEC_INIT_EXPR_CHECK (NODE)) 2902 2903/* Indicates that a VEC_INIT_EXPR is expressing value-initialization. */ 2904#define VEC_INIT_EXPR_VALUE_INIT(NODE) \ 2905 TREE_LANG_FLAG_1 (VEC_INIT_EXPR_CHECK (NODE)) 2906 2907/* The TYPE_MAIN_DECL for a class template type is a TYPE_DECL, not a 2908 TEMPLATE_DECL. This macro determines whether or not a given class 2909 type is really a template type, as opposed to an instantiation or 2910 specialization of one. */ 2911#define CLASSTYPE_IS_TEMPLATE(NODE) \ 2912 (CLASSTYPE_TEMPLATE_INFO (NODE) \ 2913 && !CLASSTYPE_USE_TEMPLATE (NODE) \ 2914 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE))) 2915 2916/* The name used by the user to name the typename type. Typically, 2917 this is an IDENTIFIER_NODE, and the same as the DECL_NAME on the 2918 corresponding TYPE_DECL. However, this may also be a 2919 TEMPLATE_ID_EXPR if we had something like `typename X::Y<T>'. */ 2920#define TYPENAME_TYPE_FULLNAME(NODE) (TYPENAME_TYPE_CHECK (NODE))->type.values 2921 2922/* True if a TYPENAME_TYPE was declared as an "enum". */ 2923#define TYPENAME_IS_ENUM_P(NODE) \ 2924 (TREE_LANG_FLAG_0 (TYPENAME_TYPE_CHECK (NODE))) 2925 2926/* True if a TYPENAME_TYPE was declared as a "class", "struct", or 2927 "union". */ 2928#define TYPENAME_IS_CLASS_P(NODE) \ 2929 (TREE_LANG_FLAG_1 (TYPENAME_TYPE_CHECK (NODE))) 2930 2931/* True if a TYPENAME_TYPE is in the process of being resolved. */ 2932#define TYPENAME_IS_RESOLVING_P(NODE) \ 2933 (TREE_LANG_FLAG_2 (TYPENAME_TYPE_CHECK (NODE))) 2934 2935/* Nonzero in INTEGER_CST means that this int is negative by dint of 2936 using a twos-complement negated operand. */ 2937#define TREE_NEGATED_INT(NODE) TREE_LANG_FLAG_0 (INTEGER_CST_CHECK (NODE)) 2938 2939/* [class.virtual] 2940 2941 A class that declares or inherits a virtual function is called a 2942 polymorphic class. */ 2943#define TYPE_POLYMORPHIC_P(NODE) (TREE_LANG_FLAG_2 (NODE)) 2944 2945/* Nonzero if this class has a virtual function table pointer. */ 2946#define TYPE_CONTAINS_VPTR_P(NODE) \ 2947 (TYPE_POLYMORPHIC_P (NODE) || CLASSTYPE_VBASECLASSES (NODE)) 2948 2949/* This flag is true of a local VAR_DECL if it was declared in a for 2950 statement, but we are no longer in the scope of the for. */ 2951#define DECL_DEAD_FOR_LOCAL(NODE) DECL_LANG_FLAG_7 (VAR_DECL_CHECK (NODE)) 2952 2953/* This flag is set on a VAR_DECL that is a DECL_DEAD_FOR_LOCAL 2954 if we already emitted a warning about using it. */ 2955#define DECL_ERROR_REPORTED(NODE) DECL_LANG_FLAG_0 (VAR_DECL_CHECK (NODE)) 2956 2957/* Nonzero if NODE is a FUNCTION_DECL (for a function with global 2958 scope) declared in a local scope. */ 2959#define DECL_LOCAL_FUNCTION_P(NODE) \ 2960 DECL_LANG_FLAG_0 (FUNCTION_DECL_CHECK (NODE)) 2961 2962/* Nonzero if NODE is a DECL which we know about but which has not 2963 been explicitly declared, such as a built-in function or a friend 2964 declared inside a class. In the latter case DECL_HIDDEN_FRIEND_P 2965 will be set. */ 2966#define DECL_ANTICIPATED(NODE) \ 2967 (DECL_LANG_SPECIFIC (DECL_COMMON_CHECK (NODE))->u.base.anticipated_p) 2968 2969/* Nonzero if NODE is a FUNCTION_DECL which was declared as a friend 2970 within a class but has not been declared in the surrounding scope. 2971 The function is invisible except via argument dependent lookup. */ 2972#define DECL_HIDDEN_FRIEND_P(NODE) \ 2973 (LANG_DECL_FN_CHECK (DECL_COMMON_CHECK (NODE))->hidden_friend_p) 2974 2975/* Nonzero if DECL has been declared threadprivate by 2976 #pragma omp threadprivate. */ 2977#define CP_DECL_THREADPRIVATE_P(DECL) \ 2978 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (DECL))->u.base.threadprivate_or_deleted_p) 2979 2980/* Nonzero if DECL was declared with '= delete'. */ 2981#define DECL_DELETED_FN(DECL) \ 2982 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->u.base.threadprivate_or_deleted_p) 2983 2984/* Nonzero if DECL was declared with '= default' (maybe implicitly). */ 2985#define DECL_DEFAULTED_FN(DECL) \ 2986 (LANG_DECL_FN_CHECK (DECL)->defaulted_p) 2987 2988/* Nonzero if DECL is explicitly defaulted in the class body. */ 2989#define DECL_DEFAULTED_IN_CLASS_P(DECL) \ 2990 (DECL_DEFAULTED_FN (DECL) && DECL_INITIALIZED_IN_CLASS_P (DECL)) 2991/* Nonzero if DECL was defaulted outside the class body. */ 2992#define DECL_DEFAULTED_OUTSIDE_CLASS_P(DECL) \ 2993 (DECL_DEFAULTED_FN (DECL) \ 2994 && !(DECL_ARTIFICIAL (DECL) || DECL_INITIALIZED_IN_CLASS_P (DECL))) 2995 2996/* Record whether a typedef for type `int' was actually `signed int'. */ 2997#define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP) 2998 2999/* Returns nonzero if DECL has external linkage, as specified by the 3000 language standard. (This predicate may hold even when the 3001 corresponding entity is not actually given external linkage in the 3002 object file; see decl_linkage for details.) */ 3003#define DECL_EXTERNAL_LINKAGE_P(DECL) \ 3004 (decl_linkage (DECL) == lk_external) 3005 3006/* Keep these codes in ascending code order. */ 3007 3008#define INTEGRAL_CODE_P(CODE) \ 3009 ((CODE) == ENUMERAL_TYPE \ 3010 || (CODE) == BOOLEAN_TYPE \ 3011 || (CODE) == INTEGER_TYPE) 3012 3013/* [basic.fundamental] 3014 3015 Types bool, char, wchar_t, and the signed and unsigned integer types 3016 are collectively called integral types. 3017 3018 Note that INTEGRAL_TYPE_P, as defined in tree.h, allows enumeration 3019 types as well, which is incorrect in C++. Keep these checks in 3020 ascending code order. */ 3021#define CP_INTEGRAL_TYPE_P(TYPE) \ 3022 (TREE_CODE (TYPE) == BOOLEAN_TYPE \ 3023 || TREE_CODE (TYPE) == INTEGER_TYPE) 3024 3025/* Returns true if TYPE is an integral or enumeration name. Keep 3026 these checks in ascending code order. */ 3027#define INTEGRAL_OR_ENUMERATION_TYPE_P(TYPE) \ 3028 (TREE_CODE (TYPE) == ENUMERAL_TYPE || CP_INTEGRAL_TYPE_P (TYPE)) 3029 3030/* Returns true if TYPE is an integral or unscoped enumeration type. */ 3031#define INTEGRAL_OR_UNSCOPED_ENUMERATION_TYPE_P(TYPE) \ 3032 (UNSCOPED_ENUM_P (TYPE) || CP_INTEGRAL_TYPE_P (TYPE)) 3033 3034/* True if the class type TYPE is a literal type. */ 3035#define CLASSTYPE_LITERAL_P(TYPE) \ 3036 (LANG_TYPE_CLASS_CHECK (TYPE)->is_literal) 3037 3038/* [basic.fundamental] 3039 3040 Integral and floating types are collectively called arithmetic 3041 types. 3042 3043 As a GNU extension, we also accept complex types. 3044 3045 Keep these checks in ascending code order. */ 3046#define ARITHMETIC_TYPE_P(TYPE) \ 3047 (CP_INTEGRAL_TYPE_P (TYPE) \ 3048 || TREE_CODE (TYPE) == REAL_TYPE \ 3049 || TREE_CODE (TYPE) == COMPLEX_TYPE) 3050 3051/* True iff TYPE is cv decltype(nullptr). */ 3052#define NULLPTR_TYPE_P(TYPE) (TREE_CODE (TYPE) == NULLPTR_TYPE) 3053 3054/* [basic.types] 3055 3056 Arithmetic types, enumeration types, pointer types, 3057 pointer-to-member types, and std::nullptr_t are collectively called 3058 scalar types. 3059 3060 Keep these checks in ascending code order. */ 3061#define SCALAR_TYPE_P(TYPE) \ 3062 (TYPE_PTRMEM_P (TYPE) \ 3063 || TREE_CODE (TYPE) == ENUMERAL_TYPE \ 3064 || ARITHMETIC_TYPE_P (TYPE) \ 3065 || TYPE_PTR_P (TYPE) \ 3066 || TYPE_PTRMEMFUNC_P (TYPE) \ 3067 || NULLPTR_TYPE_P (TYPE)) 3068 3069/* Determines whether this type is a C++0x scoped enumeration 3070 type. Scoped enumerations types are introduced via "enum class" or 3071 "enum struct", e.g., 3072 3073 enum class Color { 3074 Red, Green, Blue 3075 }; 3076 3077 Scoped enumeration types are different from normal (unscoped) 3078 enumeration types in several ways: 3079 3080 - The enumerators of a scoped enumeration type are only available 3081 within the scope of the enumeration type and not in the 3082 enclosing scope. For example, the Red color can be referred to 3083 with "Color::Red" but not "Red". 3084 3085 - Scoped enumerators and enumerations do not implicitly convert 3086 to integers or 'bool'. 3087 3088 - The underlying type of the enum is well-defined. */ 3089#define SCOPED_ENUM_P(TYPE) \ 3090 (TREE_CODE (TYPE) == ENUMERAL_TYPE && ENUM_IS_SCOPED (TYPE)) 3091 3092/* Determine whether this is an unscoped enumeration type. */ 3093#define UNSCOPED_ENUM_P(TYPE) \ 3094 (TREE_CODE (TYPE) == ENUMERAL_TYPE && !ENUM_IS_SCOPED (TYPE)) 3095 3096/* Set the flag indicating whether an ENUMERAL_TYPE is a C++0x scoped 3097 enumeration type (1) or a normal (unscoped) enumeration type 3098 (0). */ 3099#define SET_SCOPED_ENUM_P(TYPE, VAL) \ 3100 (ENUM_IS_SCOPED (TYPE) = (VAL)) 3101 3102#define SET_OPAQUE_ENUM_P(TYPE, VAL) \ 3103 (ENUM_IS_OPAQUE (TYPE) = (VAL)) 3104 3105#define OPAQUE_ENUM_P(TYPE) \ 3106 (TREE_CODE (TYPE) == ENUMERAL_TYPE && ENUM_IS_OPAQUE (TYPE)) 3107 3108/* Determines whether an ENUMERAL_TYPE has an explicit 3109 underlying type. */ 3110#define ENUM_FIXED_UNDERLYING_TYPE_P(NODE) (TYPE_LANG_FLAG_5 (NODE)) 3111 3112/* Returns the underlying type of the given enumeration type. The 3113 underlying type is determined in different ways, depending on the 3114 properties of the enum: 3115 3116 - In C++0x, the underlying type can be explicitly specified, e.g., 3117 3118 enum E1 : char { ... } // underlying type is char 3119 3120 - In a C++0x scoped enumeration, the underlying type is int 3121 unless otherwises specified: 3122 3123 enum class E2 { ... } // underlying type is int 3124 3125 - Otherwise, the underlying type is determined based on the 3126 values of the enumerators. In this case, the 3127 ENUM_UNDERLYING_TYPE will not be set until after the definition 3128 of the enumeration is completed by finish_enum. */ 3129#define ENUM_UNDERLYING_TYPE(TYPE) \ 3130 TREE_TYPE (ENUMERAL_TYPE_CHECK (TYPE)) 3131 3132/* [dcl.init.aggr] 3133 3134 An aggregate is an array or a class with no user-declared 3135 constructors, no private or protected non-static data members, no 3136 base classes, and no virtual functions. 3137 3138 As an extension, we also treat vectors as aggregates. Keep these 3139 checks in ascending code order. */ 3140#define CP_AGGREGATE_TYPE_P(TYPE) \ 3141 (TREE_CODE (TYPE) == VECTOR_TYPE \ 3142 ||TREE_CODE (TYPE) == ARRAY_TYPE \ 3143 || (CLASS_TYPE_P (TYPE) && !CLASSTYPE_NON_AGGREGATE (TYPE))) 3144 3145/* Nonzero for a class type means that the class type has a 3146 user-declared constructor. */ 3147#define TYPE_HAS_USER_CONSTRUCTOR(NODE) (TYPE_LANG_FLAG_1 (NODE)) 3148 3149/* When appearing in an INDIRECT_REF, it means that the tree structure 3150 underneath is actually a call to a constructor. This is needed 3151 when the constructor must initialize local storage (which can 3152 be automatically destroyed), rather than allowing it to allocate 3153 space from the heap. 3154 3155 When appearing in a SAVE_EXPR, it means that underneath 3156 is a call to a constructor. 3157 3158 When appearing in a CONSTRUCTOR, the expression is a 3159 compound literal. 3160 3161 When appearing in a FIELD_DECL, it means that this field 3162 has been duly initialized in its constructor. */ 3163#define TREE_HAS_CONSTRUCTOR(NODE) (TREE_LANG_FLAG_4 (NODE)) 3164 3165/* True if NODE is a brace-enclosed initializer. */ 3166#define BRACE_ENCLOSED_INITIALIZER_P(NODE) \ 3167 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_TYPE (NODE) == init_list_type_node) 3168 3169/* True if NODE is a compound-literal, i.e., a brace-enclosed 3170 initializer cast to a particular type. */ 3171#define COMPOUND_LITERAL_P(NODE) \ 3172 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_HAS_CONSTRUCTOR (NODE)) 3173 3174#define EMPTY_CONSTRUCTOR_P(NODE) (TREE_CODE (NODE) == CONSTRUCTOR \ 3175 && VEC_empty (constructor_elt, \ 3176 CONSTRUCTOR_ELTS (NODE)) \ 3177 && !TREE_HAS_CONSTRUCTOR (NODE)) 3178 3179/* True if NODE is a init-list used as a direct-initializer, i.e. 3180 B b{1,2}, not B b({1,2}) or B b = {1,2}. */ 3181#define CONSTRUCTOR_IS_DIRECT_INIT(NODE) (TREE_LANG_FLAG_0 (CONSTRUCTOR_CHECK (NODE))) 3182 3183/* Nonzero means that an object of this type can not be initialized using 3184 an initializer list. */ 3185#define CLASSTYPE_NON_AGGREGATE(NODE) \ 3186 (LANG_TYPE_CLASS_CHECK (NODE)->non_aggregate) 3187#define TYPE_NON_AGGREGATE_CLASS(NODE) \ 3188 (CLASS_TYPE_P (NODE) && CLASSTYPE_NON_AGGREGATE (NODE)) 3189 3190/* Nonzero if there is a non-trivial X::op=(cv X&) for this class. */ 3191#define TYPE_HAS_COMPLEX_COPY_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_copy_assign) 3192 3193/* Nonzero if there is a non-trivial X::X(cv X&) for this class. */ 3194#define TYPE_HAS_COMPLEX_COPY_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_copy_ctor) 3195 3196/* Nonzero if there is a non-trivial X::op=(X&&) for this class. */ 3197#define TYPE_HAS_COMPLEX_MOVE_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_move_assign) 3198 3199/* Nonzero if there is a non-trivial X::X(X&&) for this class. */ 3200#define TYPE_HAS_COMPLEX_MOVE_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_move_ctor) 3201 3202/* Nonzero if there is a non-trivial default constructor for this class. */ 3203#define TYPE_HAS_COMPLEX_DFLT(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_dflt) 3204 3205/* Nonzero if TYPE has a trivial destructor. From [class.dtor]: 3206 3207 A destructor is trivial if it is an implicitly declared 3208 destructor and if: 3209 3210 - all of the direct base classes of its class have trivial 3211 destructors, 3212 3213 - for all of the non-static data members of its class that are 3214 of class type (or array thereof), each such class has a 3215 trivial destructor. */ 3216#define TYPE_HAS_TRIVIAL_DESTRUCTOR(NODE) \ 3217 (!TYPE_HAS_NONTRIVIAL_DESTRUCTOR (NODE)) 3218 3219/* Nonzero for _TYPE node means that this type does not have a trivial 3220 destructor. Therefore, destroying an object of this type will 3221 involve a call to a destructor. This can apply to objects of 3222 ARRAY_TYPE is the type of the elements needs a destructor. */ 3223#define TYPE_HAS_NONTRIVIAL_DESTRUCTOR(NODE) \ 3224 (TYPE_LANG_FLAG_4 (NODE)) 3225 3226/* Nonzero for class type means that the default constructor is trivial. */ 3227#define TYPE_HAS_TRIVIAL_DFLT(NODE) \ 3228 (TYPE_HAS_DEFAULT_CONSTRUCTOR (NODE) && ! TYPE_HAS_COMPLEX_DFLT (NODE)) 3229 3230/* Nonzero for class type means that copy initialization of this type can use 3231 a bitwise copy. */ 3232#define TYPE_HAS_TRIVIAL_COPY_CTOR(NODE) \ 3233 (TYPE_HAS_COPY_CTOR (NODE) && ! TYPE_HAS_COMPLEX_COPY_CTOR (NODE)) 3234 3235/* Nonzero for class type means that assignment of this type can use 3236 a bitwise copy. */ 3237#define TYPE_HAS_TRIVIAL_COPY_ASSIGN(NODE) \ 3238 (TYPE_HAS_COPY_ASSIGN (NODE) && ! TYPE_HAS_COMPLEX_COPY_ASSIGN (NODE)) 3239 3240/* Returns true if NODE is a pointer-to-data-member. */ 3241#define TYPE_PTRMEM_P(NODE) \ 3242 (TREE_CODE (NODE) == OFFSET_TYPE) 3243/* Returns true if NODE is a pointer. */ 3244#define TYPE_PTR_P(NODE) \ 3245 (TREE_CODE (NODE) == POINTER_TYPE) 3246 3247/* Returns true if NODE is an object type: 3248 3249 [basic.types] 3250 3251 An object type is a (possibly cv-qualified) type that is not a 3252 function type, not a reference type, and not a void type. 3253 3254 Keep these checks in ascending order, for speed. */ 3255#define TYPE_OBJ_P(NODE) \ 3256 (TREE_CODE (NODE) != REFERENCE_TYPE \ 3257 && TREE_CODE (NODE) != VOID_TYPE \ 3258 && TREE_CODE (NODE) != FUNCTION_TYPE \ 3259 && TREE_CODE (NODE) != METHOD_TYPE) 3260 3261/* Returns true if NODE is a pointer to an object. Keep these checks 3262 in ascending tree code order. */ 3263#define TYPE_PTROB_P(NODE) \ 3264 (TYPE_PTR_P (NODE) && TYPE_OBJ_P (TREE_TYPE (NODE))) 3265 3266/* Returns true if NODE is a reference to an object. Keep these checks 3267 in ascending tree code order. */ 3268#define TYPE_REF_OBJ_P(NODE) \ 3269 (TREE_CODE (NODE) == REFERENCE_TYPE && TYPE_OBJ_P (TREE_TYPE (NODE))) 3270 3271/* Returns true if NODE is a pointer to an object, or a pointer to 3272 void. Keep these checks in ascending tree code order. */ 3273#define TYPE_PTROBV_P(NODE) \ 3274 (TYPE_PTR_P (NODE) \ 3275 && !(TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE \ 3276 || TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE)) 3277 3278/* Returns true if NODE is a pointer to function. */ 3279#define TYPE_PTRFN_P(NODE) \ 3280 (TREE_CODE (NODE) == POINTER_TYPE \ 3281 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE) 3282 3283/* Returns true if NODE is a reference to function. */ 3284#define TYPE_REFFN_P(NODE) \ 3285 (TREE_CODE (NODE) == REFERENCE_TYPE \ 3286 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE) 3287 3288/* Nonzero for _TYPE node means that this type is a pointer to member 3289 function type. */ 3290#define TYPE_PTRMEMFUNC_P(NODE) \ 3291 (TREE_CODE (NODE) == RECORD_TYPE \ 3292 && TYPE_LANG_SPECIFIC (NODE) \ 3293 && TYPE_PTRMEMFUNC_FLAG (NODE)) 3294 3295#define TYPE_PTRMEMFUNC_FLAG(NODE) \ 3296 (LANG_TYPE_CLASS_CHECK (NODE)->ptrmemfunc_flag) 3297 3298/* Returns true if NODE is a pointer-to-member. */ 3299#define TYPE_PTR_TO_MEMBER_P(NODE) \ 3300 (TYPE_PTRMEM_P (NODE) || TYPE_PTRMEMFUNC_P (NODE)) 3301 3302/* Indicates when overload resolution may resolve to a pointer to 3303 member function. [expr.unary.op]/3 */ 3304#define PTRMEM_OK_P(NODE) \ 3305 TREE_LANG_FLAG_0 (TREE_CHECK2 ((NODE), ADDR_EXPR, OFFSET_REF)) 3306 3307/* Get the POINTER_TYPE to the METHOD_TYPE associated with this 3308 pointer to member function. TYPE_PTRMEMFUNC_P _must_ be true, 3309 before using this macro. */ 3310#define TYPE_PTRMEMFUNC_FN_TYPE(NODE) \ 3311 (TREE_TYPE (TYPE_FIELDS (NODE))) 3312 3313/* Returns `A' for a type like `int (A::*)(double)' */ 3314#define TYPE_PTRMEMFUNC_OBJECT_TYPE(NODE) \ 3315 TYPE_METHOD_BASETYPE (TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE))) 3316 3317/* These are use to manipulate the canonical RECORD_TYPE from the 3318 hashed POINTER_TYPE, and can only be used on the POINTER_TYPE. */ 3319#define TYPE_GET_PTRMEMFUNC_TYPE(NODE) \ 3320 (TYPE_LANG_SPECIFIC (NODE) ? LANG_TYPE_PTRMEM_CHECK (NODE)->record : NULL) 3321#define TYPE_SET_PTRMEMFUNC_TYPE(NODE, VALUE) \ 3322 do { \ 3323 if (TYPE_LANG_SPECIFIC (NODE) == NULL) \ 3324 { \ 3325 TYPE_LANG_SPECIFIC (NODE) = ggc_alloc_cleared_lang_type \ 3326 (sizeof (struct lang_type_ptrmem)); \ 3327 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.h.is_lang_type_class = 0; \ 3328 } \ 3329 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.record = (VALUE); \ 3330 } while (0) 3331 3332/* For a pointer-to-member type of the form `T X::*', this is `X'. 3333 For a type like `void (X::*)() const', this type is `X', not `const 3334 X'. To get at the `const X' you have to look at the 3335 TYPE_PTRMEM_POINTED_TO_TYPE; there, the first parameter will have 3336 type `const X*'. */ 3337#define TYPE_PTRMEM_CLASS_TYPE(NODE) \ 3338 (TYPE_PTRMEM_P (NODE) \ 3339 ? TYPE_OFFSET_BASETYPE (NODE) \ 3340 : TYPE_PTRMEMFUNC_OBJECT_TYPE (NODE)) 3341 3342/* For a pointer-to-member type of the form `T X::*', this is `T'. */ 3343#define TYPE_PTRMEM_POINTED_TO_TYPE(NODE) \ 3344 (TYPE_PTRMEM_P (NODE) \ 3345 ? TREE_TYPE (NODE) \ 3346 : TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE))) 3347 3348/* For a pointer-to-member constant `X::Y' this is the RECORD_TYPE for 3349 `X'. */ 3350#define PTRMEM_CST_CLASS(NODE) \ 3351 TYPE_PTRMEM_CLASS_TYPE (TREE_TYPE (PTRMEM_CST_CHECK (NODE))) 3352 3353/* For a pointer-to-member constant `X::Y' this is the _DECL for 3354 `Y'. */ 3355#define PTRMEM_CST_MEMBER(NODE) (((ptrmem_cst_t)PTRMEM_CST_CHECK (NODE))->member) 3356 3357/* The expression in question for a TYPEOF_TYPE. */ 3358#define TYPEOF_TYPE_EXPR(NODE) (TYPEOF_TYPE_CHECK (NODE))->type.values 3359 3360/* The expression in question for a DECLTYPE_TYPE. */ 3361#define DECLTYPE_TYPE_EXPR(NODE) (DECLTYPE_TYPE_CHECK (NODE))->type.values 3362 3363/* Whether the DECLTYPE_TYPE_EXPR of NODE was originally parsed as an 3364 id-expression or a member-access expression. When false, it was 3365 parsed as a full expression. */ 3366#define DECLTYPE_TYPE_ID_EXPR_OR_MEMBER_ACCESS_P(NODE) \ 3367 (DECLTYPE_TYPE_CHECK (NODE))->type.string_flag 3368 3369/* These flags indicate that we want different semantics from normal 3370 decltype: lambda capture just drops references, lambda return also does 3371 type decay. */ 3372#define DECLTYPE_FOR_LAMBDA_CAPTURE(NODE) \ 3373 TREE_LANG_FLAG_0 (DECLTYPE_TYPE_CHECK (NODE)) 3374#define DECLTYPE_FOR_LAMBDA_RETURN(NODE) \ 3375 TREE_LANG_FLAG_1 (DECLTYPE_TYPE_CHECK (NODE)) 3376 3377/* Nonzero for VAR_DECL and FUNCTION_DECL node means that `extern' was 3378 specified in its declaration. This can also be set for an 3379 erroneously declared PARM_DECL. */ 3380#define DECL_THIS_EXTERN(NODE) \ 3381 DECL_LANG_FLAG_2 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE)) 3382 3383/* Nonzero for VAR_DECL and FUNCTION_DECL node means that `static' was 3384 specified in its declaration. This can also be set for an 3385 erroneously declared PARM_DECL. */ 3386#define DECL_THIS_STATIC(NODE) \ 3387 DECL_LANG_FLAG_6 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE)) 3388 3389/* Nonzero for FIELD_DECL node means that this field is a base class 3390 of the parent object, as opposed to a member field. */ 3391#define DECL_FIELD_IS_BASE(NODE) \ 3392 DECL_LANG_FLAG_6 (FIELD_DECL_CHECK (NODE)) 3393 3394/* Nonzero for FIELD_DECL node means that this field is a simple (no 3395 explicit initializer) lambda capture field, making it invisible to 3396 name lookup in unevaluated contexts. */ 3397#define DECL_NORMAL_CAPTURE_P(NODE) \ 3398 DECL_LANG_FLAG_7 (FIELD_DECL_CHECK (NODE)) 3399 3400/* Nonzero if TYPE is an anonymous union or struct type. We have to use a 3401 flag for this because "A union for which objects or pointers are 3402 declared is not an anonymous union" [class.union]. */ 3403#define ANON_AGGR_TYPE_P(NODE) \ 3404 (CLASS_TYPE_P (NODE) && LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr) 3405#define SET_ANON_AGGR_TYPE_P(NODE) \ 3406 (LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr = 1) 3407 3408/* Nonzero if TYPE is an anonymous union type. */ 3409#define ANON_UNION_TYPE_P(NODE) \ 3410 (TREE_CODE (NODE) == UNION_TYPE && ANON_AGGR_TYPE_P (NODE)) 3411 3412/* Define fields and accessors for nodes representing declared names. */ 3413 3414#define TYPE_WAS_ANONYMOUS(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->was_anonymous) 3415 3416/* C++: all of these are overloaded! These apply only to TYPE_DECLs. */ 3417 3418/* The format of each node in the DECL_FRIENDLIST is as follows: 3419 3420 The TREE_PURPOSE will be the name of a function, i.e., an 3421 IDENTIFIER_NODE. The TREE_VALUE will be itself a TREE_LIST, whose 3422 TREE_VALUEs are friends with the given name. */ 3423#define DECL_FRIENDLIST(NODE) (DECL_INITIAL (NODE)) 3424#define FRIEND_NAME(LIST) (TREE_PURPOSE (LIST)) 3425#define FRIEND_DECLS(LIST) (TREE_VALUE (LIST)) 3426 3427/* The DECL_ACCESS, if non-NULL, is a TREE_LIST. The TREE_PURPOSE of 3428 each node is a type; the TREE_VALUE is the access granted for this 3429 DECL in that type. The DECL_ACCESS is set by access declarations. 3430 For example, if a member that would normally be public in a 3431 derived class is made protected, then the derived class and the 3432 protected_access_node will appear in the DECL_ACCESS for the node. */ 3433#define DECL_ACCESS(NODE) (LANG_DECL_U2_CHECK (NODE, 0)->access) 3434 3435/* Nonzero if the FUNCTION_DECL is a global constructor. */ 3436#define DECL_GLOBAL_CTOR_P(NODE) \ 3437 (LANG_DECL_FN_CHECK (NODE)->global_ctor_p) 3438 3439/* Nonzero if the FUNCTION_DECL is a global destructor. */ 3440#define DECL_GLOBAL_DTOR_P(NODE) \ 3441 (LANG_DECL_FN_CHECK (NODE)->global_dtor_p) 3442 3443/* Accessor macros for C++ template decl nodes. */ 3444 3445/* The DECL_TEMPLATE_PARMS are a list. The TREE_PURPOSE of each node 3446 is a INT_CST whose TREE_INT_CST_LOW indicates the level of the 3447 template parameters, with 1 being the outermost set of template 3448 parameters. The TREE_VALUE is a vector, whose elements are the 3449 template parameters at each level. Each element in the vector is a 3450 TREE_LIST, whose TREE_VALUE is a PARM_DECL (if the parameter is a 3451 non-type parameter), or a TYPE_DECL (if the parameter is a type 3452 parameter). The TREE_PURPOSE is the default value, if any. The 3453 TEMPLATE_PARM_INDEX for the parameter is available as the 3454 DECL_INITIAL (for a PARM_DECL) or as the TREE_TYPE (for a 3455 TYPE_DECL). */ 3456#define DECL_TEMPLATE_PARMS(NODE) DECL_NON_COMMON_CHECK (NODE)->decl_non_common.arguments 3457#define DECL_INNERMOST_TEMPLATE_PARMS(NODE) \ 3458 INNERMOST_TEMPLATE_PARMS (DECL_TEMPLATE_PARMS (NODE)) 3459#define DECL_NTPARMS(NODE) \ 3460 TREE_VEC_LENGTH (DECL_INNERMOST_TEMPLATE_PARMS (NODE)) 3461/* For function, method, class-data templates. */ 3462#define DECL_TEMPLATE_RESULT(NODE) DECL_RESULT_FLD (NODE) 3463/* For a function template at namespace scope, DECL_TEMPLATE_INSTANTIATIONS 3464 lists all instantiations and specializations of the function so that 3465 tsubst_friend_function can reassign them to another template if we find 3466 that the namespace-scope template is really a partial instantiation of a 3467 friend template. 3468 3469 For a class template the DECL_TEMPLATE_INSTANTIATIONS lists holds 3470 all instantiations and specializations of the class type, including 3471 partial instantiations and partial specializations, so that if we 3472 explicitly specialize a partial instantiation we can walk the list 3473 in maybe_process_partial_specialization and reassign them or complain 3474 as appropriate. 3475 3476 In both cases, the TREE_PURPOSE of each node contains the arguments 3477 used; the TREE_VALUE contains the generated variable. The template 3478 arguments are always complete. For example, given: 3479 3480 template <class T> struct S1 { 3481 template <class U> struct S2 {}; 3482 template <class U> struct S2<U*> {}; 3483 }; 3484 3485 the record for the partial specialization will contain, as its 3486 argument list, { {T}, {U*} }, and will be on the 3487 DECL_TEMPLATE_INSTANTIATIONS list for `template <class T> template 3488 <class U> struct S1<T>::S2'. 3489 3490 This list is not used for other templates. */ 3491#define DECL_TEMPLATE_INSTANTIATIONS(NODE) DECL_VINDEX (NODE) 3492/* For a class template, this list contains the partial 3493 specializations of this template. (Full specializations are not 3494 recorded on this list.) The TREE_PURPOSE holds the arguments used 3495 in the partial specialization (e.g., for `template <class T> struct 3496 S<T*, int>' this will be `T*'.) The arguments will also include 3497 any outer template arguments. The TREE_VALUE holds the innermost 3498 template parameters for the specialization (e.g., `T' in the 3499 example above.) The TREE_TYPE is the _TYPE node for the partial 3500 specialization. 3501 3502 This list is not used for other templates. */ 3503#define DECL_TEMPLATE_SPECIALIZATIONS(NODE) DECL_SIZE (NODE) 3504 3505/* Nonzero for a DECL which is actually a template parameter. Keep 3506 these checks in ascending tree code order. */ 3507#define DECL_TEMPLATE_PARM_P(NODE) \ 3508 (DECL_LANG_FLAG_0 (NODE) \ 3509 && (TREE_CODE (NODE) == CONST_DECL \ 3510 || TREE_CODE (NODE) == PARM_DECL \ 3511 || TREE_CODE (NODE) == TYPE_DECL \ 3512 || TREE_CODE (NODE) == TEMPLATE_DECL)) 3513 3514/* Mark NODE as a template parameter. */ 3515#define SET_DECL_TEMPLATE_PARM_P(NODE) \ 3516 (DECL_LANG_FLAG_0 (NODE) = 1) 3517 3518/* Nonzero if NODE is a template template parameter. */ 3519#define DECL_TEMPLATE_TEMPLATE_PARM_P(NODE) \ 3520 (TREE_CODE (NODE) == TEMPLATE_DECL && DECL_TEMPLATE_PARM_P (NODE)) 3521 3522/* Nonzero if NODE is a TEMPLATE_DECL representing an 3523 UNBOUND_CLASS_TEMPLATE tree node. */ 3524#define DECL_UNBOUND_CLASS_TEMPLATE_P(NODE) \ 3525 (TREE_CODE (NODE) == TEMPLATE_DECL && !DECL_TEMPLATE_RESULT (NODE)) 3526 3527#define DECL_FUNCTION_TEMPLATE_P(NODE) \ 3528 (TREE_CODE (NODE) == TEMPLATE_DECL \ 3529 && !DECL_UNBOUND_CLASS_TEMPLATE_P (NODE) \ 3530 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == FUNCTION_DECL) 3531 3532/* Nonzero for a DECL that represents a template class. */ 3533#define DECL_CLASS_TEMPLATE_P(NODE) \ 3534 (TREE_CODE (NODE) == TEMPLATE_DECL \ 3535 && DECL_TEMPLATE_RESULT (NODE) != NULL_TREE \ 3536 && DECL_IMPLICIT_TYPEDEF_P (DECL_TEMPLATE_RESULT (NODE))) 3537 3538/* Nonzero if NODE which declares a type. */ 3539#define DECL_DECLARES_TYPE_P(NODE) \ 3540 (TREE_CODE (NODE) == TYPE_DECL || DECL_CLASS_TEMPLATE_P (NODE)) 3541 3542/* Nonzero if NODE declares a function. */ 3543#define DECL_DECLARES_FUNCTION_P(NODE) \ 3544 (TREE_CODE (NODE) == FUNCTION_DECL || DECL_FUNCTION_TEMPLATE_P (NODE)) 3545 3546/* Nonzero if NODE is the typedef implicitly generated for a type when 3547 the type is declared. In C++, `struct S {};' is roughly 3548 equivalent to `struct S {}; typedef struct S S;' in C. 3549 DECL_IMPLICIT_TYPEDEF_P will hold for the typedef indicated in this 3550 example. In C++, there is a second implicit typedef for each 3551 class, in the scope of `S' itself, so that you can say `S::S'. 3552 DECL_SELF_REFERENCE_P will hold for that second typedef. */ 3553#define DECL_IMPLICIT_TYPEDEF_P(NODE) \ 3554 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_2 (NODE)) 3555#define SET_DECL_IMPLICIT_TYPEDEF_P(NODE) \ 3556 (DECL_LANG_FLAG_2 (NODE) = 1) 3557#define DECL_SELF_REFERENCE_P(NODE) \ 3558 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_4 (NODE)) 3559#define SET_DECL_SELF_REFERENCE_P(NODE) \ 3560 (DECL_LANG_FLAG_4 (NODE) = 1) 3561 3562/* A `primary' template is one that has its own template header. A 3563 member function of a class template is a template, but not primary. 3564 A member template is primary. Friend templates are primary, too. */ 3565 3566/* Returns the primary template corresponding to these parameters. */ 3567#define DECL_PRIMARY_TEMPLATE(NODE) \ 3568 (TREE_TYPE (DECL_INNERMOST_TEMPLATE_PARMS (NODE))) 3569 3570/* Returns nonzero if NODE is a primary template. */ 3571#define PRIMARY_TEMPLATE_P(NODE) (DECL_PRIMARY_TEMPLATE (NODE) == (NODE)) 3572 3573/* Nonzero iff NODE is a specialization of a template. The value 3574 indicates the type of specializations: 3575 3576 1=implicit instantiation 3577 3578 2=partial or explicit specialization, e.g.: 3579 3580 template <> int min<int> (int, int), 3581 3582 3=explicit instantiation, e.g.: 3583 3584 template int min<int> (int, int); 3585 3586 Note that NODE will be marked as a specialization even if the 3587 template it is instantiating is not a primary template. For 3588 example, given: 3589 3590 template <typename T> struct O { 3591 void f(); 3592 struct I {}; 3593 }; 3594 3595 both O<int>::f and O<int>::I will be marked as instantiations. 3596 3597 If DECL_USE_TEMPLATE is nonzero, then DECL_TEMPLATE_INFO will also 3598 be non-NULL. */ 3599#define DECL_USE_TEMPLATE(NODE) (DECL_LANG_SPECIFIC (NODE)->u.base.use_template) 3600 3601/* Like DECL_USE_TEMPLATE, but for class types. */ 3602#define CLASSTYPE_USE_TEMPLATE(NODE) \ 3603 (LANG_TYPE_CLASS_CHECK (NODE)->use_template) 3604 3605/* True if NODE is a specialization of a primary template. */ 3606#define CLASSTYPE_SPECIALIZATION_OF_PRIMARY_TEMPLATE_P(NODE) \ 3607 (CLASS_TYPE_P (NODE) \ 3608 && CLASSTYPE_USE_TEMPLATE (NODE) \ 3609 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE))) 3610 3611#define DECL_TEMPLATE_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) & 1) 3612#define CLASSTYPE_TEMPLATE_INSTANTIATION(NODE) \ 3613 (CLASSTYPE_USE_TEMPLATE (NODE) & 1) 3614 3615#define DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) == 2) 3616#define SET_DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) = 2) 3617 3618/* Returns true for an explicit or partial specialization of a class 3619 template. */ 3620#define CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \ 3621 (CLASSTYPE_USE_TEMPLATE (NODE) == 2) 3622#define SET_CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \ 3623 (CLASSTYPE_USE_TEMPLATE (NODE) = 2) 3624 3625#define DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 1) 3626#define SET_DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 1) 3627#define CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \ 3628 (CLASSTYPE_USE_TEMPLATE (NODE) == 1) 3629#define SET_CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \ 3630 (CLASSTYPE_USE_TEMPLATE (NODE) = 1) 3631 3632#define DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 3) 3633#define SET_DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 3) 3634#define CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \ 3635 (CLASSTYPE_USE_TEMPLATE (NODE) == 3) 3636#define SET_CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \ 3637 (CLASSTYPE_USE_TEMPLATE (NODE) = 3) 3638 3639/* Nonzero if DECL is a friend function which is an instantiation 3640 from the point of view of the compiler, but not from the point of 3641 view of the language. For example given: 3642 template <class T> struct S { friend void f(T) {}; }; 3643 the declaration of `void f(int)' generated when S<int> is 3644 instantiated will not be a DECL_TEMPLATE_INSTANTIATION, but will be 3645 a DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION. */ 3646#define DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION(DECL) \ 3647 (DECL_TEMPLATE_INFO (DECL) && !DECL_USE_TEMPLATE (DECL)) 3648 3649/* Nonzero iff we are currently processing a declaration for an 3650 entity with its own template parameter list, and which is not a 3651 full specialization. */ 3652#define PROCESSING_REAL_TEMPLATE_DECL_P() \ 3653 (processing_template_decl > template_class_depth (current_scope ())) 3654 3655/* Nonzero if this VAR_DECL or FUNCTION_DECL has already been 3656 instantiated, i.e. its definition has been generated from the 3657 pattern given in the template. */ 3658#define DECL_TEMPLATE_INSTANTIATED(NODE) \ 3659 DECL_LANG_FLAG_1 (VAR_OR_FUNCTION_DECL_CHECK (NODE)) 3660 3661/* We know what we're doing with this decl now. */ 3662#define DECL_INTERFACE_KNOWN(NODE) DECL_LANG_FLAG_5 (NODE) 3663 3664/* DECL_EXTERNAL must be set on a decl until the decl is actually emitted, 3665 so that assemble_external will work properly. So we have this flag to 3666 tell us whether the decl is really not external. 3667 3668 This flag does not indicate whether or not the decl is defined in the 3669 current translation unit; it indicates whether or not we should emit the 3670 decl at the end of compilation if it is defined and needed. */ 3671#define DECL_NOT_REALLY_EXTERN(NODE) \ 3672 (DECL_LANG_SPECIFIC (NODE)->u.base.not_really_extern) 3673 3674#define DECL_REALLY_EXTERN(NODE) \ 3675 (DECL_EXTERNAL (NODE) && ! DECL_NOT_REALLY_EXTERN (NODE)) 3676 3677/* A thunk is a stub function. 3678 3679 A thunk is an alternate entry point for an ordinary FUNCTION_DECL. 3680 The address of the ordinary FUNCTION_DECL is given by the 3681 DECL_INITIAL, which is always an ADDR_EXPR whose operand is a 3682 FUNCTION_DECL. The job of the thunk is to either adjust the this 3683 pointer before transferring control to the FUNCTION_DECL, or call 3684 FUNCTION_DECL and then adjust the result value. Note, the result 3685 pointer adjusting thunk must perform a call to the thunked 3686 function, (or be implemented via passing some invisible parameter 3687 to the thunked function, which is modified to perform the 3688 adjustment just before returning). 3689 3690 A thunk may perform either, or both, of the following operations: 3691 3692 o Adjust the this or result pointer by a constant offset. 3693 o Adjust the this or result pointer by looking up a vcall or vbase offset 3694 in the vtable. 3695 3696 A this pointer adjusting thunk converts from a base to a derived 3697 class, and hence adds the offsets. A result pointer adjusting thunk 3698 converts from a derived class to a base, and hence subtracts the 3699 offsets. If both operations are performed, then the constant 3700 adjustment is performed first for this pointer adjustment and last 3701 for the result pointer adjustment. 3702 3703 The constant adjustment is given by THUNK_FIXED_OFFSET. If the 3704 vcall or vbase offset is required, THUNK_VIRTUAL_OFFSET is 3705 used. For this pointer adjusting thunks, it is the vcall offset 3706 into the vtable. For result pointer adjusting thunks it is the 3707 binfo of the virtual base to convert to. Use that binfo's vbase 3708 offset. 3709 3710 It is possible to have equivalent covariant thunks. These are 3711 distinct virtual covariant thunks whose vbase offsets happen to 3712 have the same value. THUNK_ALIAS is used to pick one as the 3713 canonical thunk, which will get all the this pointer adjusting 3714 thunks attached to it. */ 3715 3716/* An integer indicating how many bytes should be subtracted from the 3717 this or result pointer when this function is called. */ 3718#define THUNK_FIXED_OFFSET(DECL) \ 3719 (DECL_LANG_SPECIFIC (THUNK_FUNCTION_CHECK (DECL))->u.fn.u5.fixed_offset) 3720 3721/* A tree indicating how to perform the virtual adjustment. For a this 3722 adjusting thunk it is the number of bytes to be added to the vtable 3723 to find the vcall offset. For a result adjusting thunk, it is the 3724 binfo of the relevant virtual base. If NULL, then there is no 3725 virtual adjust. (The vptr is always located at offset zero from 3726 the this or result pointer.) (If the covariant type is within the 3727 class hierarchy being laid out, the vbase index is not yet known 3728 at the point we need to create the thunks, hence the need to use 3729 binfos.) */ 3730 3731#define THUNK_VIRTUAL_OFFSET(DECL) \ 3732 (LANG_DECL_U2_CHECK (FUNCTION_DECL_CHECK (DECL), 0)->access) 3733 3734/* A thunk which is equivalent to another thunk. */ 3735#define THUNK_ALIAS(DECL) \ 3736 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->u.min.template_info) 3737 3738/* For thunk NODE, this is the FUNCTION_DECL thunked to. It is 3739 possible for the target to be a thunk too. */ 3740#define THUNK_TARGET(NODE) \ 3741 (LANG_DECL_FN_CHECK (NODE)->befriending_classes) 3742 3743/* True for a SCOPE_REF iff the "template" keyword was used to 3744 indicate that the qualified name denotes a template. */ 3745#define QUALIFIED_NAME_IS_TEMPLATE(NODE) \ 3746 (TREE_LANG_FLAG_0 (SCOPE_REF_CHECK (NODE))) 3747 3748/* True for an OMP_ATOMIC that has dependent parameters. These are stored 3749 as an expr in operand 1, and integer_zero_node in operand 0. */ 3750#define OMP_ATOMIC_DEPENDENT_P(NODE) \ 3751 (TREE_CODE (TREE_OPERAND (OMP_ATOMIC_CHECK (NODE), 0)) == INTEGER_CST) 3752 3753/* Used while gimplifying continue statements bound to OMP_FOR nodes. */ 3754#define OMP_FOR_GIMPLIFYING_P(NODE) \ 3755 (TREE_LANG_FLAG_0 (OMP_FOR_CHECK (NODE))) 3756 3757/* A language-specific token attached to the OpenMP data clauses to 3758 hold code (or code fragments) related to ctors, dtors, and op=. 3759 See semantics.c for details. */ 3760#define CP_OMP_CLAUSE_INFO(NODE) \ 3761 TREE_TYPE (OMP_CLAUSE_RANGE_CHECK (NODE, OMP_CLAUSE_PRIVATE, \ 3762 OMP_CLAUSE_COPYPRIVATE)) 3763 3764/* These macros provide convenient access to the various _STMT nodes 3765 created when parsing template declarations. */ 3766#define TRY_STMTS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 0) 3767#define TRY_HANDLERS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 1) 3768 3769#define EH_SPEC_STMTS(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 0) 3770#define EH_SPEC_RAISES(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 1) 3771 3772#define USING_STMT_NAMESPACE(NODE) TREE_OPERAND (USING_STMT_CHECK (NODE), 0) 3773 3774/* Nonzero if this try block is a function try block. */ 3775#define FN_TRY_BLOCK_P(NODE) TREE_LANG_FLAG_3 (TRY_BLOCK_CHECK (NODE)) 3776#define HANDLER_PARMS(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 0) 3777#define HANDLER_BODY(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 1) 3778#define HANDLER_TYPE(NODE) TREE_TYPE (HANDLER_CHECK (NODE)) 3779 3780/* CLEANUP_STMT accessors. The statement(s) covered, the cleanup to run 3781 and the VAR_DECL for which this cleanup exists. */ 3782#define CLEANUP_BODY(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 0) 3783#define CLEANUP_EXPR(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 1) 3784#define CLEANUP_DECL(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 2) 3785 3786/* IF_STMT accessors. These give access to the condition of the if 3787 statement, the then block of the if statement, and the else block 3788 of the if statement if it exists. */ 3789#define IF_COND(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 0) 3790#define THEN_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 1) 3791#define ELSE_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 2) 3792 3793/* WHILE_STMT accessors. These give access to the condition of the 3794 while statement and the body of the while statement, respectively. */ 3795#define WHILE_COND(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 0) 3796#define WHILE_BODY(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 1) 3797 3798/* DO_STMT accessors. These give access to the condition of the do 3799 statement and the body of the do statement, respectively. */ 3800#define DO_COND(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 0) 3801#define DO_BODY(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 1) 3802 3803/* FOR_STMT accessors. These give access to the init statement, 3804 condition, update expression, and body of the for statement, 3805 respectively. */ 3806#define FOR_INIT_STMT(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 0) 3807#define FOR_COND(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 1) 3808#define FOR_EXPR(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 2) 3809#define FOR_BODY(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 3) 3810 3811/* RANGE_FOR_STMT accessors. These give access to the declarator, 3812 expression and body of the statement, respectively. */ 3813#define RANGE_FOR_DECL(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 0) 3814#define RANGE_FOR_EXPR(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 1) 3815#define RANGE_FOR_BODY(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 2) 3816 3817#define SWITCH_STMT_COND(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 0) 3818#define SWITCH_STMT_BODY(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 1) 3819#define SWITCH_STMT_TYPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 2) 3820 3821/* STMT_EXPR accessor. */ 3822#define STMT_EXPR_STMT(NODE) TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0) 3823 3824/* EXPR_STMT accessor. This gives the expression associated with an 3825 expression statement. */ 3826#define EXPR_STMT_EXPR(NODE) TREE_OPERAND (EXPR_STMT_CHECK (NODE), 0) 3827 3828/* True if this TARGET_EXPR was created by build_cplus_new, and so we can 3829 discard it if it isn't useful. */ 3830#define TARGET_EXPR_IMPLICIT_P(NODE) \ 3831 TREE_LANG_FLAG_0 (TARGET_EXPR_CHECK (NODE)) 3832 3833/* True if this TARGET_EXPR is the result of list-initialization of a 3834 temporary. */ 3835#define TARGET_EXPR_LIST_INIT_P(NODE) \ 3836 TREE_LANG_FLAG_1 (TARGET_EXPR_CHECK (NODE)) 3837 3838/* True if this TARGET_EXPR expresses direct-initialization of an object 3839 to be named later. */ 3840#define TARGET_EXPR_DIRECT_INIT_P(NODE) \ 3841 TREE_LANG_FLAG_2 (TARGET_EXPR_CHECK (NODE)) 3842 3843/* True if EXPR expresses direct-initialization of a TYPE. */ 3844#define DIRECT_INIT_EXPR_P(TYPE,EXPR) \ 3845 (TREE_CODE (EXPR) == TARGET_EXPR && TREE_LANG_FLAG_2 (EXPR) \ 3846 && same_type_ignoring_top_level_qualifiers_p (TYPE, TREE_TYPE (EXPR))) 3847 3848/* An enumeration of the kind of tags that C++ accepts. */ 3849enum tag_types { 3850 none_type = 0, /* Not a tag type. */ 3851 record_type, /* "struct" types. */ 3852 class_type, /* "class" types. */ 3853 union_type, /* "union" types. */ 3854 enum_type, /* "enum" types. */ 3855 typename_type /* "typename" types. */ 3856}; 3857 3858/* The various kinds of lvalues we distinguish. */ 3859enum cp_lvalue_kind_flags { 3860 clk_none = 0, /* Things that are not an lvalue. */ 3861 clk_ordinary = 1, /* An ordinary lvalue. */ 3862 clk_rvalueref = 2,/* An rvalue formed using an rvalue reference */ 3863 clk_class = 4, /* An rvalue of class-type. */ 3864 clk_bitfield = 8, /* An lvalue for a bit-field. */ 3865 clk_packed = 16 /* An lvalue for a packed field. */ 3866}; 3867 3868/* This type is used for parameters and variables which hold 3869 combinations of the flags in enum cp_lvalue_kind_flags. */ 3870typedef int cp_lvalue_kind; 3871 3872/* Various kinds of template specialization, instantiation, etc. */ 3873typedef enum tmpl_spec_kind { 3874 tsk_none, /* Not a template at all. */ 3875 tsk_invalid_member_spec, /* An explicit member template 3876 specialization, but the enclosing 3877 classes have not all been explicitly 3878 specialized. */ 3879 tsk_invalid_expl_inst, /* An explicit instantiation containing 3880 template parameter lists. */ 3881 tsk_excessive_parms, /* A template declaration with too many 3882 template parameter lists. */ 3883 tsk_insufficient_parms, /* A template declaration with too few 3884 parameter lists. */ 3885 tsk_template, /* A template declaration. */ 3886 tsk_expl_spec, /* An explicit specialization. */ 3887 tsk_expl_inst /* An explicit instantiation. */ 3888} tmpl_spec_kind; 3889 3890/* The various kinds of access. BINFO_ACCESS depends on these being 3891 two bit quantities. The numerical values are important; they are 3892 used to initialize RTTI data structures, so changing them changes 3893 the ABI. */ 3894typedef enum access_kind { 3895 ak_none = 0, /* Inaccessible. */ 3896 ak_public = 1, /* Accessible, as a `public' thing. */ 3897 ak_protected = 2, /* Accessible, as a `protected' thing. */ 3898 ak_private = 3 /* Accessible, as a `private' thing. */ 3899} access_kind; 3900 3901/* The various kinds of special functions. If you add to this list, 3902 you should update special_function_p as well. */ 3903typedef enum special_function_kind { 3904 sfk_none = 0, /* Not a special function. This enumeral 3905 must have value zero; see 3906 special_function_p. */ 3907 sfk_constructor, /* A constructor. */ 3908 sfk_copy_constructor, /* A copy constructor. */ 3909 sfk_move_constructor, /* A move constructor. */ 3910 sfk_copy_assignment, /* A copy assignment operator. */ 3911 sfk_move_assignment, /* A move assignment operator. */ 3912 sfk_destructor, /* A destructor. */ 3913 sfk_complete_destructor, /* A destructor for complete objects. */ 3914 sfk_base_destructor, /* A destructor for base subobjects. */ 3915 sfk_deleting_destructor, /* A destructor for complete objects that 3916 deletes the object after it has been 3917 destroyed. */ 3918 sfk_conversion /* A conversion operator. */ 3919} special_function_kind; 3920 3921/* The various kinds of linkage. From [basic.link], 3922 3923 A name is said to have linkage when it might denote the same 3924 object, reference, function, type, template, namespace or value 3925 as a name introduced in another scope: 3926 3927 -- When a name has external linkage, the entity it denotes can 3928 be referred to from scopes of other translation units or from 3929 other scopes of the same translation unit. 3930 3931 -- When a name has internal linkage, the entity it denotes can 3932 be referred to by names from other scopes in the same 3933 translation unit. 3934 3935 -- When a name has no linkage, the entity it denotes cannot be 3936 referred to by names from other scopes. */ 3937 3938typedef enum linkage_kind { 3939 lk_none, /* No linkage. */ 3940 lk_internal, /* Internal linkage. */ 3941 lk_external /* External linkage. */ 3942} linkage_kind; 3943 3944typedef enum duration_kind { 3945 dk_static, 3946 dk_thread, 3947 dk_auto, 3948 dk_dynamic 3949} duration_kind; 3950 3951/* Bitmask flags to control type substitution. */ 3952enum tsubst_flags { 3953 tf_none = 0, /* nothing special */ 3954 tf_error = 1 << 0, /* give error messages */ 3955 tf_warning = 1 << 1, /* give warnings too */ 3956 tf_ignore_bad_quals = 1 << 2, /* ignore bad cvr qualifiers */ 3957 tf_keep_type_decl = 1 << 3, /* retain typedef type decls 3958 (make_typename_type use) */ 3959 tf_ptrmem_ok = 1 << 4, /* pointers to member ok (internal 3960 instantiate_type use) */ 3961 tf_user = 1 << 5, /* found template must be a user template 3962 (lookup_template_class use) */ 3963 tf_conv = 1 << 6, /* We are determining what kind of 3964 conversion might be permissible, 3965 not actually performing the 3966 conversion. */ 3967 tf_no_access_control = 1 << 7, /* Do not perform access checks, even 3968 when issuing other errors. */ 3969 /* Convenient substitution flags combinations. */ 3970 tf_warning_or_error = tf_warning | tf_error 3971}; 3972 3973/* This type is used for parameters and variables which hold 3974 combinations of the flags in enum tsubst_flags. */ 3975typedef int tsubst_flags_t; 3976 3977/* The kind of checking we can do looking in a class hierarchy. */ 3978enum base_access_flags { 3979 ba_any = 0, /* Do not check access, allow an ambiguous base, 3980 prefer a non-virtual base */ 3981 ba_unique = 1 << 0, /* Must be a unique base. */ 3982 ba_check_bit = 1 << 1, /* Check access. */ 3983 ba_check = ba_unique | ba_check_bit, 3984 ba_ignore_scope = 1 << 2, /* Ignore access allowed by local scope. */ 3985 ba_quiet = 1 << 3 /* Do not issue error messages. */ 3986}; 3987 3988/* This type is used for parameters and variables which hold 3989 combinations of the flags in enum base_access_flags. */ 3990typedef int base_access; 3991 3992/* The various kinds of access check during parsing. */ 3993typedef enum deferring_kind { 3994 dk_no_deferred = 0, /* Check access immediately */ 3995 dk_deferred = 1, /* Deferred check */ 3996 dk_no_check = 2 /* No access check */ 3997} deferring_kind; 3998 3999/* The kind of base we can find, looking in a class hierarchy. 4000 Values <0 indicate we failed. */ 4001typedef enum base_kind { 4002 bk_inaccessible = -3, /* The base is inaccessible */ 4003 bk_ambig = -2, /* The base is ambiguous */ 4004 bk_not_base = -1, /* It is not a base */ 4005 bk_same_type = 0, /* It is the same type */ 4006 bk_proper_base = 1, /* It is a proper base */ 4007 bk_via_virtual = 2 /* It is a proper base, but via a virtual 4008 path. This might not be the canonical 4009 binfo. */ 4010} base_kind; 4011 4012/* Node for "pointer to (virtual) function". 4013 This may be distinct from ptr_type_node so gdb can distinguish them. */ 4014#define vfunc_ptr_type_node vtable_entry_type 4015 4016 4017/* For building calls to `delete'. */ 4018extern GTY(()) tree integer_two_node; 4019 4020/* The number of function bodies which we are currently processing. 4021 (Zero if we are at namespace scope, one inside the body of a 4022 function, two inside the body of a function in a local class, etc.) */ 4023extern int function_depth; 4024 4025/* In parser.c. */ 4026 4027/* Nonzero if we are parsing an unevaluated operand: an operand to 4028 sizeof, typeof, or alignof. This is a count since operands to 4029 sizeof can be nested. */ 4030 4031extern int cp_unevaluated_operand; 4032extern tree cp_convert_range_for (tree, tree, tree); 4033 4034/* in pt.c */ 4035 4036/* These values are used for the `STRICT' parameter to type_unification and 4037 fn_type_unification. Their meanings are described with the 4038 documentation for fn_type_unification. */ 4039 4040typedef enum unification_kind_t { 4041 DEDUCE_CALL, 4042 DEDUCE_CONV, 4043 DEDUCE_EXACT 4044} unification_kind_t; 4045 4046/* in class.c */ 4047 4048extern int current_class_depth; 4049 4050/* An array of all local classes present in this translation unit, in 4051 declaration order. */ 4052extern GTY(()) VEC(tree,gc) *local_classes; 4053 4054/* Here's where we control how name mangling takes place. */ 4055 4056/* Cannot use '$' up front, because this confuses gdb 4057 (names beginning with '$' are gdb-local identifiers). 4058 4059 Note that all forms in which the '$' is significant are long enough 4060 for direct indexing (meaning that if we know there is a '$' 4061 at a particular location, we can index into the string at 4062 any other location that provides distinguishing characters). */ 4063 4064/* Define NO_DOT_IN_LABEL in your favorite tm file if your assembler 4065 doesn't allow '.' in symbol names. */ 4066#ifndef NO_DOT_IN_LABEL 4067 4068#define JOINER '.' 4069 4070#define AUTO_TEMP_NAME "_.tmp_" 4071#define VFIELD_BASE ".vf" 4072#define VFIELD_NAME "_vptr." 4073#define VFIELD_NAME_FORMAT "_vptr.%s" 4074 4075#define ANON_AGGRNAME_FORMAT "._%d" 4076 4077#else /* NO_DOT_IN_LABEL */ 4078 4079#ifndef NO_DOLLAR_IN_LABEL 4080 4081#define JOINER '$' 4082 4083#define AUTO_TEMP_NAME "_$tmp_" 4084#define VFIELD_BASE "$vf" 4085#define VFIELD_NAME "_vptr$" 4086#define VFIELD_NAME_FORMAT "_vptr$%s" 4087#define ANON_AGGRNAME_FORMAT "$_%d" 4088 4089#else /* NO_DOLLAR_IN_LABEL */ 4090 4091#define IN_CHARGE_NAME "__in_chrg" 4092#define AUTO_TEMP_NAME "__tmp_" 4093#define TEMP_NAME_P(ID_NODE) \ 4094 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, \ 4095 sizeof (AUTO_TEMP_NAME) - 1)) 4096#define VTABLE_NAME "__vt_" 4097#define VTABLE_NAME_P(ID_NODE) \ 4098 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VTABLE_NAME, \ 4099 sizeof (VTABLE_NAME) - 1)) 4100#define VFIELD_BASE "__vfb" 4101#define VFIELD_NAME "__vptr_" 4102#define VFIELD_NAME_P(ID_NODE) \ 4103 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, \ 4104 sizeof (VFIELD_NAME) - 1)) 4105#define VFIELD_NAME_FORMAT "__vptr_%s" 4106 4107#define ANON_AGGRNAME_PREFIX "__anon_" 4108#define ANON_AGGRNAME_P(ID_NODE) \ 4109 (!strncmp (IDENTIFIER_POINTER (ID_NODE), ANON_AGGRNAME_PREFIX, \ 4110 sizeof (ANON_AGGRNAME_PREFIX) - 1)) 4111#define ANON_AGGRNAME_FORMAT "__anon_%d" 4112 4113#endif /* NO_DOLLAR_IN_LABEL */ 4114#endif /* NO_DOT_IN_LABEL */ 4115 4116#define THIS_NAME "this" 4117 4118#define IN_CHARGE_NAME "__in_chrg" 4119 4120#define VTBL_PTR_TYPE "__vtbl_ptr_type" 4121#define VTABLE_DELTA_NAME "__delta" 4122#define VTABLE_PFN_NAME "__pfn" 4123 4124#define LAMBDANAME_PREFIX "__lambda" 4125#define LAMBDANAME_FORMAT LAMBDANAME_PREFIX "%d" 4126#define LAMBDANAME_P(ID_NODE) \ 4127 (!strncmp (IDENTIFIER_POINTER (ID_NODE), \ 4128 LAMBDANAME_PREFIX, \ 4129 sizeof (LAMBDANAME_PREFIX) - 1)) 4130 4131#if !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) 4132 4133#define VTABLE_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == 'v' \ 4134 && IDENTIFIER_POINTER (ID_NODE)[2] == 't' \ 4135 && IDENTIFIER_POINTER (ID_NODE)[3] == JOINER) 4136 4137#define TEMP_NAME_P(ID_NODE) \ 4138 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, sizeof (AUTO_TEMP_NAME)-1)) 4139#define VFIELD_NAME_P(ID_NODE) \ 4140 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, sizeof(VFIELD_NAME)-1)) 4141 4142/* For anonymous aggregate types, we need some sort of name to 4143 hold on to. In practice, this should not appear, but it should 4144 not be harmful if it does. */ 4145#define ANON_AGGRNAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[0] == JOINER \ 4146 && IDENTIFIER_POINTER (ID_NODE)[1] == '_') 4147#endif /* !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) */ 4148 4149 4150/* Nonzero if we're done parsing and into end-of-file activities. */ 4151 4152extern int at_eof; 4153 4154/* A list of namespace-scope objects which have constructors or 4155 destructors which reside in the global scope. The decl is stored 4156 in the TREE_VALUE slot and the initializer is stored in the 4157 TREE_PURPOSE slot. */ 4158extern GTY(()) tree static_aggregates; 4159 4160enum overload_flags { NO_SPECIAL = 0, DTOR_FLAG, TYPENAME_FLAG }; 4161 4162/* These are uses as bits in flags passed to various functions to 4163 control their behavior. Despite the LOOKUP_ prefix, many of these 4164 do not control name lookup. ??? Functions using these flags should 4165 probably be modified to accept explicit boolean flags for the 4166 behaviors relevant to them. */ 4167/* Check for access violations. */ 4168#define LOOKUP_PROTECT (1 << 0) 4169/* Complain if no suitable member function matching the arguments is 4170 found. */ 4171#define LOOKUP_COMPLAIN (1 << 1) 4172#define LOOKUP_NORMAL (LOOKUP_PROTECT | LOOKUP_COMPLAIN) 4173/* Even if the function found by lookup is a virtual function, it 4174 should be called directly. */ 4175#define LOOKUP_NONVIRTUAL (1 << 2) 4176/* Non-converting (i.e., "explicit") constructors are not tried. This flag 4177 indicates that we are not performing direct-initialization. */ 4178#define LOOKUP_ONLYCONVERTING (1 << 3) 4179#define LOOKUP_IMPLICIT (LOOKUP_NORMAL | LOOKUP_ONLYCONVERTING) 4180/* If a temporary is created, it should be created so that it lives 4181 as long as the current variable bindings; otherwise it only lives 4182 until the end of the complete-expression. It also forces 4183 direct-initialization in cases where other parts of the compiler 4184 have already generated a temporary, such as reference 4185 initialization and the catch parameter. */ 4186#define DIRECT_BIND (1 << 4) 4187/* We're performing a user-defined conversion, so more user-defined 4188 conversions are not permitted (only built-in conversions). */ 4189#define LOOKUP_NO_CONVERSION (1 << 5) 4190/* The user has explicitly called a destructor. (Therefore, we do 4191 not need to check that the object is non-NULL before calling the 4192 destructor.) */ 4193#define LOOKUP_DESTRUCTOR (1 << 6) 4194/* Do not permit references to bind to temporaries. */ 4195#define LOOKUP_NO_TEMP_BIND (1 << 7) 4196/* Do not accept objects, and possibly namespaces. */ 4197#define LOOKUP_PREFER_TYPES (1 << 8) 4198/* Do not accept objects, and possibly types. */ 4199#define LOOKUP_PREFER_NAMESPACES (1 << 9) 4200/* Accept types or namespaces. */ 4201#define LOOKUP_PREFER_BOTH (LOOKUP_PREFER_TYPES | LOOKUP_PREFER_NAMESPACES) 4202/* Return friend declarations and un-declared builtin functions. 4203 (Normally, these entities are registered in the symbol table, but 4204 not found by lookup.) */ 4205#define LOOKUP_HIDDEN (LOOKUP_PREFER_NAMESPACES << 1) 4206/* Prefer that the lvalue be treated as an rvalue. */ 4207#define LOOKUP_PREFER_RVALUE (LOOKUP_HIDDEN << 1) 4208/* We're inside an init-list, so narrowing conversions are ill-formed. */ 4209#define LOOKUP_NO_NARROWING (LOOKUP_PREFER_RVALUE << 1) 4210/* Avoid user-defined conversions for the first parameter of a copy 4211 constructor (or move constructor). */ 4212#define LOOKUP_NO_COPY_CTOR_CONVERSION (LOOKUP_NO_NARROWING << 1) 4213/* This is the first parameter of a copy constructor. */ 4214#define LOOKUP_COPY_PARM (LOOKUP_NO_COPY_CTOR_CONVERSION << 1) 4215/* We only want to consider list constructors. */ 4216#define LOOKUP_LIST_ONLY (LOOKUP_COPY_PARM << 1) 4217/* Return after determining which function to call and checking access. 4218 Used by sythesized_method_walk to determine which functions will 4219 be called to initialize subobjects, in order to determine exception 4220 specification and possible implicit delete. 4221 This is kind of a hack, but since access control doesn't respect SFINAE 4222 we can't just use tf_none to avoid access control errors, we need 4223 another mechanism. Exiting early also avoids problems with trying 4224 to perform argument conversions when the class isn't complete yet. */ 4225#define LOOKUP_SPECULATIVE (LOOKUP_LIST_ONLY << 1) 4226/* Used by calls from defaulted functions to limit the overload set to avoid 4227 cycles trying to declare them (core issue 1092). */ 4228#define LOOKUP_DEFAULTED (LOOKUP_SPECULATIVE << 1) 4229/* Used in calls to store_init_value to suppress its usual call to 4230 digest_init. */ 4231#define LOOKUP_ALREADY_DIGESTED (LOOKUP_DEFAULTED << 1) 4232 4233#define LOOKUP_NAMESPACES_ONLY(F) \ 4234 (((F) & LOOKUP_PREFER_NAMESPACES) && !((F) & LOOKUP_PREFER_TYPES)) 4235#define LOOKUP_TYPES_ONLY(F) \ 4236 (!((F) & LOOKUP_PREFER_NAMESPACES) && ((F) & LOOKUP_PREFER_TYPES)) 4237#define LOOKUP_QUALIFIERS_ONLY(F) ((F) & LOOKUP_PREFER_BOTH) 4238 4239 4240/* These flags are used by the conversion code. 4241 CONV_IMPLICIT : Perform implicit conversions (standard and user-defined). 4242 CONV_STATIC : Perform the explicit conversions for static_cast. 4243 CONV_CONST : Perform the explicit conversions for const_cast. 4244 CONV_REINTERPRET: Perform the explicit conversions for reinterpret_cast. 4245 CONV_PRIVATE : Perform upcasts to private bases. 4246 CONV_FORCE_TEMP : Require a new temporary when converting to the same 4247 aggregate type. */ 4248 4249#define CONV_IMPLICIT 1 4250#define CONV_STATIC 2 4251#define CONV_CONST 4 4252#define CONV_REINTERPRET 8 4253#define CONV_PRIVATE 16 4254/* #define CONV_NONCONVERTING 32 */ 4255#define CONV_FORCE_TEMP 64 4256#define CONV_OLD_CONVERT (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \ 4257 | CONV_REINTERPRET) 4258#define CONV_C_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \ 4259 | CONV_REINTERPRET | CONV_PRIVATE | CONV_FORCE_TEMP) 4260 4261/* Used by build_expr_type_conversion to indicate which types are 4262 acceptable as arguments to the expression under consideration. */ 4263 4264#define WANT_INT 1 /* integer types, including bool */ 4265#define WANT_FLOAT 2 /* floating point types */ 4266#define WANT_ENUM 4 /* enumerated types */ 4267#define WANT_POINTER 8 /* pointer types */ 4268#define WANT_NULL 16 /* null pointer constant */ 4269#define WANT_VECTOR_OR_COMPLEX 32 /* vector or complex types */ 4270#define WANT_ARITH (WANT_INT | WANT_FLOAT | WANT_VECTOR_OR_COMPLEX) 4271 4272/* Used with comptypes, and related functions, to guide type 4273 comparison. */ 4274 4275#define COMPARE_STRICT 0 /* Just check if the types are the 4276 same. */ 4277#define COMPARE_BASE 1 /* Check to see if the second type is 4278 derived from the first. */ 4279#define COMPARE_DERIVED 2 /* Like COMPARE_BASE, but in 4280 reverse. */ 4281#define COMPARE_REDECLARATION 4 /* The comparison is being done when 4282 another declaration of an existing 4283 entity is seen. */ 4284#define COMPARE_STRUCTURAL 8 /* The comparison is intended to be 4285 structural. The actual comparison 4286 will be identical to 4287 COMPARE_STRICT. */ 4288 4289/* Used with push_overloaded_decl. */ 4290#define PUSH_GLOBAL 0 /* Push the DECL into namespace scope, 4291 regardless of the current scope. */ 4292#define PUSH_LOCAL 1 /* Push the DECL into the current 4293 scope. */ 4294#define PUSH_USING 2 /* We are pushing this DECL as the 4295 result of a using declaration. */ 4296 4297/* Used with start function. */ 4298#define SF_DEFAULT 0 /* No flags. */ 4299#define SF_PRE_PARSED 1 /* The function declaration has 4300 already been parsed. */ 4301#define SF_INCLASS_INLINE 2 /* The function is an inline, defined 4302 in the class body. */ 4303 4304/* Used with start_decl's initialized parameter. */ 4305#define SD_UNINITIALIZED 0 4306#define SD_INITIALIZED 1 4307#define SD_DEFAULTED 2 4308#define SD_DELETED 3 4309 4310/* Returns nonzero iff TYPE1 and TYPE2 are the same type, or if TYPE2 4311 is derived from TYPE1, or if TYPE2 is a pointer (reference) to a 4312 class derived from the type pointed to (referred to) by TYPE1. */ 4313#define same_or_base_type_p(TYPE1, TYPE2) \ 4314 comptypes ((TYPE1), (TYPE2), COMPARE_BASE) 4315 4316/* These macros are used to access a TEMPLATE_PARM_INDEX. */ 4317#define TEMPLATE_PARM_INDEX_CAST(NODE) \ 4318 ((template_parm_index*)TEMPLATE_PARM_INDEX_CHECK (NODE)) 4319#define TEMPLATE_PARM_IDX(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->index) 4320#define TEMPLATE_PARM_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->level) 4321/* The Number of sibling parms this template parm has. */ 4322#define TEMPLATE_PARM_NUM_SIBLINGS(NODE) \ 4323 (TEMPLATE_PARM_INDEX_CAST (NODE)->num_siblings) 4324#define TEMPLATE_PARM_DESCENDANTS(NODE) (TREE_CHAIN (NODE)) 4325#define TEMPLATE_PARM_ORIG_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->orig_level) 4326#define TEMPLATE_PARM_DECL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->decl) 4327#define TEMPLATE_PARM_PARAMETER_PACK(NODE) \ 4328 (TREE_LANG_FLAG_0 (TEMPLATE_PARM_INDEX_CHECK (NODE))) 4329 4330/* These macros are for accessing the fields of TEMPLATE_TYPE_PARM, 4331 TEMPLATE_TEMPLATE_PARM and BOUND_TEMPLATE_TEMPLATE_PARM nodes. */ 4332#define TEMPLATE_TYPE_PARM_INDEX(NODE) \ 4333 (TREE_CHECK3 ((NODE), TEMPLATE_TYPE_PARM, TEMPLATE_TEMPLATE_PARM, \ 4334 BOUND_TEMPLATE_TEMPLATE_PARM))->type.values 4335#define TEMPLATE_TYPE_IDX(NODE) \ 4336 (TEMPLATE_PARM_IDX (TEMPLATE_TYPE_PARM_INDEX (NODE))) 4337#define TEMPLATE_TYPE_LEVEL(NODE) \ 4338 (TEMPLATE_PARM_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE))) 4339#define TEMPLATE_TYPE_ORIG_LEVEL(NODE) \ 4340 (TEMPLATE_PARM_ORIG_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE))) 4341#define TEMPLATE_TYPE_DECL(NODE) \ 4342 (TEMPLATE_PARM_DECL (TEMPLATE_TYPE_PARM_INDEX (NODE))) 4343#define TEMPLATE_TYPE_PARAMETER_PACK(NODE) \ 4344 (TEMPLATE_PARM_PARAMETER_PACK (TEMPLATE_TYPE_PARM_INDEX (NODE))) 4345 4346/* These constants can used as bit flags in the process of tree formatting. 4347 4348 TFF_PLAIN_IDENTIFIER: unqualified part of a name. 4349 TFF_SCOPE: include the class and namespace scope of the name. 4350 TFF_CHASE_TYPEDEF: print the original type-id instead of the typedef-name. 4351 TFF_DECL_SPECIFIERS: print decl-specifiers. 4352 TFF_CLASS_KEY_OR_ENUM: precede a class-type name (resp. enum name) with 4353 a class-key (resp. `enum'). 4354 TFF_RETURN_TYPE: include function return type. 4355 TFF_FUNCTION_DEFAULT_ARGUMENTS: include function default parameter values. 4356 TFF_EXCEPTION_SPECIFICATION: show function exception specification. 4357 TFF_TEMPLATE_HEADER: show the template<...> header in a 4358 template-declaration. 4359 TFF_TEMPLATE_NAME: show only template-name. 4360 TFF_EXPR_IN_PARENS: parenthesize expressions. 4361 TFF_NO_FUNCTION_ARGUMENTS: don't show function arguments. 4362 TFF_UNQUALIFIED_NAME: do not print the qualifying scope of the 4363 top-level entity. 4364 TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS: do not omit template arguments 4365 identical to their defaults. */ 4366 4367#define TFF_PLAIN_IDENTIFIER (0) 4368#define TFF_SCOPE (1) 4369#define TFF_CHASE_TYPEDEF (1 << 1) 4370#define TFF_DECL_SPECIFIERS (1 << 2) 4371#define TFF_CLASS_KEY_OR_ENUM (1 << 3) 4372#define TFF_RETURN_TYPE (1 << 4) 4373#define TFF_FUNCTION_DEFAULT_ARGUMENTS (1 << 5) 4374#define TFF_EXCEPTION_SPECIFICATION (1 << 6) 4375#define TFF_TEMPLATE_HEADER (1 << 7) 4376#define TFF_TEMPLATE_NAME (1 << 8) 4377#define TFF_EXPR_IN_PARENS (1 << 9) 4378#define TFF_NO_FUNCTION_ARGUMENTS (1 << 10) 4379#define TFF_UNQUALIFIED_NAME (1 << 11) 4380#define TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS (1 << 12) 4381 4382/* Returns the TEMPLATE_DECL associated to a TEMPLATE_TEMPLATE_PARM 4383 node. */ 4384#define TEMPLATE_TEMPLATE_PARM_TEMPLATE_DECL(NODE) \ 4385 ((TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM) \ 4386 ? TYPE_TI_TEMPLATE (NODE) \ 4387 : TYPE_NAME (NODE)) 4388 4389/* in lex.c */ 4390 4391extern void init_reswords (void); 4392 4393typedef struct GTY(()) operator_name_info_t { 4394 /* The IDENTIFIER_NODE for the operator. */ 4395 tree identifier; 4396 /* The name of the operator. */ 4397 const char *name; 4398 /* The mangled name of the operator. */ 4399 const char *mangled_name; 4400 /* The arity of the operator. */ 4401 int arity; 4402} operator_name_info_t; 4403 4404/* A mapping from tree codes to operator name information. */ 4405extern GTY(()) operator_name_info_t operator_name_info 4406 [(int) MAX_TREE_CODES]; 4407/* Similar, but for assignment operators. */ 4408extern GTY(()) operator_name_info_t assignment_operator_name_info 4409 [(int) MAX_TREE_CODES]; 4410 4411/* A type-qualifier, or bitmask therefore, using the TYPE_QUAL 4412 constants. */ 4413 4414typedef int cp_cv_quals; 4415 4416/* A storage class. */ 4417 4418typedef enum cp_storage_class { 4419 /* sc_none must be zero so that zeroing a cp_decl_specifier_seq 4420 sets the storage_class field to sc_none. */ 4421 sc_none = 0, 4422 sc_auto, 4423 sc_register, 4424 sc_static, 4425 sc_extern, 4426 sc_mutable 4427} cp_storage_class; 4428 4429/* An individual decl-specifier. */ 4430 4431typedef enum cp_decl_spec { 4432 ds_first, 4433 ds_signed = ds_first, 4434 ds_unsigned, 4435 ds_short, 4436 ds_long, 4437 ds_const, 4438 ds_volatile, 4439 ds_restrict, 4440 ds_inline, 4441 ds_virtual, 4442 ds_explicit, 4443 ds_friend, 4444 ds_typedef, 4445 ds_constexpr, 4446 ds_complex, 4447 ds_thread, 4448 ds_last 4449} cp_decl_spec; 4450 4451/* A decl-specifier-seq. */ 4452 4453typedef struct cp_decl_specifier_seq { 4454 /* The number of times each of the keywords has been seen. */ 4455 unsigned specs[(int) ds_last]; 4456 /* The location of the primary type. Mainly used for error 4457 reporting. */ 4458 location_t type_location; 4459 /* The primary type, if any, given by the decl-specifier-seq. 4460 Modifiers, like "short", "const", and "unsigned" are not 4461 reflected here. This field will be a TYPE, unless a typedef-name 4462 was used, in which case it will be a TYPE_DECL. */ 4463 tree type; 4464 /* The attributes, if any, provided with the specifier sequence. */ 4465 tree attributes; 4466 /* If non-NULL, a built-in type that the user attempted to redefine 4467 to some other type. */ 4468 tree redefined_builtin_type; 4469 /* The storage class specified -- or sc_none if no storage class was 4470 explicitly specified. */ 4471 cp_storage_class storage_class; 4472 /* True iff TYPE_SPEC indicates a user-defined type. */ 4473 BOOL_BITFIELD user_defined_type_p : 1; 4474 /* True iff multiple types were (erroneously) specified for this 4475 decl-specifier-seq. */ 4476 BOOL_BITFIELD multiple_types_p : 1; 4477 /* True iff multiple storage classes were (erroneously) specified 4478 for this decl-specifier-seq or a combination of a storage class 4479 with a typedef specifier. */ 4480 BOOL_BITFIELD conflicting_specifiers_p : 1; 4481 /* True iff at least one decl-specifier was found. */ 4482 BOOL_BITFIELD any_specifiers_p : 1; 4483 /* True iff at least one type-specifier was found. */ 4484 BOOL_BITFIELD any_type_specifiers_p : 1; 4485 /* True iff "int" was explicitly provided. */ 4486 BOOL_BITFIELD explicit_int_p : 1; 4487 /* True iff "__int128" was explicitly provided. */ 4488 BOOL_BITFIELD explicit_int128_p : 1; 4489 /* True iff "char" was explicitly provided. */ 4490 BOOL_BITFIELD explicit_char_p : 1; 4491} cp_decl_specifier_seq; 4492 4493/* The various kinds of declarators. */ 4494 4495typedef enum cp_declarator_kind { 4496 cdk_id, 4497 cdk_function, 4498 cdk_array, 4499 cdk_pointer, 4500 cdk_reference, 4501 cdk_ptrmem, 4502 cdk_error 4503} cp_declarator_kind; 4504 4505/* A declarator. */ 4506 4507typedef struct cp_declarator cp_declarator; 4508 4509typedef struct cp_parameter_declarator cp_parameter_declarator; 4510 4511/* A parameter, before it has been semantically analyzed. */ 4512struct cp_parameter_declarator { 4513 /* The next parameter, or NULL_TREE if none. */ 4514 cp_parameter_declarator *next; 4515 /* The decl-specifiers-seq for the parameter. */ 4516 cp_decl_specifier_seq decl_specifiers; 4517 /* The declarator for the parameter. */ 4518 cp_declarator *declarator; 4519 /* The default-argument expression, or NULL_TREE, if none. */ 4520 tree default_argument; 4521 /* True iff this is the first parameter in the list and the 4522 parameter sequence ends with an ellipsis. */ 4523 bool ellipsis_p; 4524}; 4525 4526/* A declarator. */ 4527struct cp_declarator { 4528 /* The kind of declarator. */ 4529 ENUM_BITFIELD (cp_declarator_kind) kind : 4; 4530 /* Whether we parsed an ellipsis (`...') just before the declarator, 4531 to indicate this is a parameter pack. */ 4532 BOOL_BITFIELD parameter_pack_p : 1; 4533 location_t id_loc; /* Currently only set for cdk_id and cdk_function. */ 4534 /* Attributes that apply to this declarator. */ 4535 tree attributes; 4536 /* For all but cdk_id and cdk_error, the contained declarator. For 4537 cdk_id and cdk_error, guaranteed to be NULL. */ 4538 cp_declarator *declarator; 4539 union { 4540 /* For identifiers. */ 4541 struct { 4542 /* If non-NULL, the qualifying scope (a NAMESPACE_DECL or 4543 *_TYPE) for this identifier. */ 4544 tree qualifying_scope; 4545 /* The unqualified name of the entity -- an IDENTIFIER_NODE, 4546 BIT_NOT_EXPR, or TEMPLATE_ID_EXPR. */ 4547 tree unqualified_name; 4548 /* If this is the name of a function, what kind of special 4549 function (if any). */ 4550 special_function_kind sfk; 4551 } id; 4552 /* For functions. */ 4553 struct { 4554 /* The parameters to the function as a TREE_LIST of decl/default. */ 4555 tree parameters; 4556 /* The cv-qualifiers for the function. */ 4557 cp_cv_quals qualifiers; 4558 /* The exception-specification for the function. */ 4559 tree exception_specification; 4560 /* The late-specified return type, if any. */ 4561 tree late_return_type; 4562 } function; 4563 /* For arrays. */ 4564 struct { 4565 /* The bounds to the array. */ 4566 tree bounds; 4567 } array; 4568 /* For cdk_pointer and cdk_ptrmem. */ 4569 struct { 4570 /* The cv-qualifiers for the pointer. */ 4571 cp_cv_quals qualifiers; 4572 /* For cdk_ptrmem, the class type containing the member. */ 4573 tree class_type; 4574 } pointer; 4575 /* For cdk_reference */ 4576 struct { 4577 /* The cv-qualifiers for the reference. These qualifiers are 4578 only used to diagnose ill-formed code. */ 4579 cp_cv_quals qualifiers; 4580 /* Whether this is an rvalue reference */ 4581 bool rvalue_ref; 4582 } reference; 4583 } u; 4584}; 4585 4586/* A level of template instantiation. */ 4587struct GTY(()) tinst_level { 4588 /* The immediately deeper level in the chain. */ 4589 struct tinst_level *next; 4590 4591 /* The original node. Can be either a DECL (for a function or static 4592 data member) or a TYPE (for a class), depending on what we were 4593 asked to instantiate. */ 4594 tree decl; 4595 4596 /* The location where the template is instantiated. */ 4597 location_t locus; 4598 4599 /* True if the location is in a system header. */ 4600 bool in_system_header_p; 4601}; 4602 4603/* A parameter list indicating for a function with no parameters, 4604 e.g "int f(void)". */ 4605extern cp_parameter_declarator *no_parameters; 4606 4607/* True if we saw "#pragma GCC java_exceptions". */ 4608extern bool pragma_java_exceptions; 4609 4610/* in call.c */ 4611extern bool check_dtor_name (tree, tree); 4612 4613extern tree build_conditional_expr (tree, tree, tree, 4614 tsubst_flags_t); 4615extern tree build_addr_func (tree); 4616extern tree build_call_a (tree, int, tree*); 4617extern tree build_call_n (tree, int, ...); 4618extern bool null_ptr_cst_p (tree); 4619extern bool sufficient_parms_p (const_tree); 4620extern tree type_decays_to (tree); 4621extern tree build_user_type_conversion (tree, tree, int); 4622extern tree build_new_function_call (tree, VEC(tree,gc) **, bool, 4623 tsubst_flags_t); 4624extern tree build_operator_new_call (tree, VEC(tree,gc) **, tree *, 4625 tree *, tree *); 4626extern tree build_new_method_call (tree, tree, VEC(tree,gc) **, 4627 tree, int, tree *, 4628 tsubst_flags_t); 4629extern tree build_special_member_call (tree, tree, VEC(tree,gc) **, 4630 tree, int, tsubst_flags_t); 4631extern tree build_new_op (enum tree_code, int, tree, 4632 tree, tree, bool *, 4633 tsubst_flags_t); 4634extern tree build_op_call (tree, VEC(tree,gc) **, 4635 tsubst_flags_t); 4636extern tree build_op_delete_call (enum tree_code, tree, tree, bool, tree, tree); 4637extern bool can_convert (tree, tree); 4638extern bool can_convert_arg (tree, tree, tree, int); 4639extern bool can_convert_arg_bad (tree, tree, tree, int); 4640extern bool enforce_access (tree, tree, tree); 4641extern tree convert_default_arg (tree, tree, tree, int); 4642extern tree convert_arg_to_ellipsis (tree); 4643extern tree build_x_va_arg (tree, tree); 4644extern tree cxx_type_promotes_to (tree); 4645extern tree type_passed_as (tree); 4646extern tree convert_for_arg_passing (tree, tree); 4647extern bool is_properly_derived_from (tree, tree); 4648extern tree set_up_extended_ref_temp (tree, tree, tree *, tree *); 4649extern tree initialize_reference (tree, tree, tree, tree *, tsubst_flags_t); 4650extern tree make_temporary_var_for_ref_to_temp (tree, tree); 4651extern tree strip_top_quals (tree); 4652extern bool reference_related_p (tree, tree); 4653extern tree perform_implicit_conversion (tree, tree, tsubst_flags_t); 4654extern tree perform_implicit_conversion_flags (tree, tree, tsubst_flags_t, int); 4655extern tree build_integral_nontype_arg_conv (tree, tree, tsubst_flags_t); 4656extern tree perform_direct_initialization_if_possible (tree, tree, bool, 4657 tsubst_flags_t); 4658extern tree in_charge_arg_for_name (tree); 4659extern tree build_cxx_call (tree, int, tree *); 4660extern bool is_std_init_list (tree); 4661extern bool is_list_ctor (tree); 4662#ifdef ENABLE_CHECKING 4663extern void validate_conversion_obstack (void); 4664#endif /* ENABLE_CHECKING */ 4665 4666/* in class.c */ 4667extern tree build_vfield_ref (tree, tree); 4668extern tree build_base_path (enum tree_code, tree, 4669 tree, int); 4670extern tree convert_to_base (tree, tree, bool, bool, 4671 tsubst_flags_t); 4672extern tree convert_to_base_statically (tree, tree); 4673extern tree build_vtbl_ref (tree, tree); 4674extern tree build_vfn_ref (tree, tree); 4675extern tree get_vtable_decl (tree, int); 4676extern void resort_type_method_vec (void *, void *, 4677 gt_pointer_operator, void *); 4678extern bool add_method (tree, tree, tree); 4679extern bool currently_open_class (tree); 4680extern tree currently_open_derived_class (tree); 4681extern tree current_nonlambda_class_type (void); 4682extern tree finish_struct (tree, tree); 4683extern void finish_struct_1 (tree); 4684extern int resolves_to_fixed_type_p (tree, int *); 4685extern void init_class_processing (void); 4686extern int is_empty_class (tree); 4687extern bool is_really_empty_class (tree); 4688extern void pushclass (tree); 4689extern void popclass (void); 4690extern void push_nested_class (tree); 4691extern void pop_nested_class (void); 4692extern int current_lang_depth (void); 4693extern void push_lang_context (tree); 4694extern void pop_lang_context (void); 4695extern tree instantiate_type (tree, tree, tsubst_flags_t); 4696extern void print_class_statistics (void); 4697extern void build_self_reference (void); 4698extern int same_signature_p (const_tree, const_tree); 4699extern void maybe_add_class_template_decl_list (tree, tree, int); 4700extern void unreverse_member_declarations (tree); 4701extern void invalidate_class_lookup_cache (void); 4702extern void maybe_note_name_used_in_class (tree, tree); 4703extern void note_name_declared_in_class (tree, tree); 4704extern tree get_vtbl_decl_for_binfo (tree); 4705extern void debug_class (tree); 4706extern void debug_thunks (tree); 4707extern tree cp_fold_obj_type_ref (tree, tree); 4708extern void set_linkage_according_to_type (tree, tree); 4709extern void determine_key_method (tree); 4710extern void check_for_override (tree, tree); 4711extern void push_class_stack (void); 4712extern void pop_class_stack (void); 4713extern bool type_has_user_nondefault_constructor (tree); 4714extern tree in_class_defaulted_default_constructor (tree); 4715extern bool user_provided_p (tree); 4716extern bool type_has_user_provided_constructor (tree); 4717extern bool type_has_user_provided_default_constructor (tree); 4718extern bool synthesized_default_constructor_is_constexpr (tree); 4719extern bool type_has_constexpr_default_constructor (tree); 4720extern bool type_has_virtual_destructor (tree); 4721extern bool type_has_move_constructor (tree); 4722extern bool type_has_move_assign (tree); 4723extern void defaulted_late_check (tree); 4724extern bool defaultable_fn_check (tree); 4725extern void fixup_type_variants (tree); 4726extern void fixup_attribute_variants (tree); 4727extern tree* decl_cloned_function_p (const_tree, bool); 4728extern void clone_function_decl (tree, int); 4729extern void adjust_clone_args (tree); 4730 4731/* in cvt.c */ 4732extern tree convert_to_reference (tree, tree, int, int, tree); 4733extern tree convert_from_reference (tree); 4734extern tree force_rvalue (tree); 4735extern tree ocp_convert (tree, tree, int, int); 4736extern tree cp_convert (tree, tree); 4737extern tree cp_convert_and_check (tree, tree); 4738extern tree cp_fold_convert (tree, tree); 4739extern tree convert_to_void (tree, impl_conv_void, 4740 tsubst_flags_t); 4741extern tree convert_force (tree, tree, int); 4742extern tree build_expr_type_conversion (int, tree, bool); 4743extern tree type_promotes_to (tree); 4744extern tree perform_qualification_conversions (tree, tree); 4745 4746/* in name-lookup.c */ 4747extern tree pushdecl (tree); 4748extern tree pushdecl_maybe_friend (tree, bool); 4749extern void maybe_push_cleanup_level (tree); 4750extern tree pushtag (tree, tree, tag_scope); 4751extern tree make_anon_name (void); 4752extern tree pushdecl_top_level_maybe_friend (tree, bool); 4753extern tree pushdecl_top_level_and_finish (tree, tree); 4754extern tree check_for_out_of_scope_variable (tree); 4755extern void print_other_binding_stack (struct cp_binding_level *); 4756extern tree maybe_push_decl (tree); 4757extern tree current_decl_namespace (void); 4758 4759/* decl.c */ 4760extern tree poplevel (int, int, int); 4761extern void cxx_init_decl_processing (void); 4762enum cp_tree_node_structure_enum cp_tree_node_structure 4763 (union lang_tree_node *); 4764extern void finish_scope (void); 4765extern void push_switch (tree); 4766extern void pop_switch (void); 4767extern tree make_lambda_name (void); 4768extern int decls_match (tree, tree); 4769extern tree duplicate_decls (tree, tree, bool); 4770extern tree declare_local_label (tree); 4771extern tree define_label (location_t, tree); 4772extern void check_goto (tree); 4773extern bool check_omp_return (void); 4774extern tree make_typename_type (tree, tree, enum tag_types, tsubst_flags_t); 4775extern tree make_unbound_class_template (tree, tree, tree, tsubst_flags_t); 4776extern tree build_library_fn_ptr (const char *, tree); 4777extern tree build_cp_library_fn_ptr (const char *, tree); 4778extern tree push_library_fn (tree, tree, tree); 4779extern tree push_void_library_fn (tree, tree); 4780extern tree push_throw_library_fn (tree, tree); 4781extern tree check_tag_decl (cp_decl_specifier_seq *); 4782extern tree shadow_tag (cp_decl_specifier_seq *); 4783extern tree groktypename (cp_decl_specifier_seq *, const cp_declarator *, bool); 4784extern tree start_decl (const cp_declarator *, cp_decl_specifier_seq *, int, tree, tree, tree *); 4785extern void start_decl_1 (tree, bool); 4786extern bool check_array_initializer (tree, tree, tree); 4787extern void cp_finish_decl (tree, tree, bool, tree, int); 4788extern int cp_complete_array_type (tree *, tree, bool); 4789extern tree build_ptrmemfunc_type (tree); 4790extern tree build_ptrmem_type (tree, tree); 4791/* the grokdeclarator prototype is in decl.h */ 4792extern tree build_this_parm (tree, cp_cv_quals); 4793extern int copy_fn_p (const_tree); 4794extern bool move_fn_p (const_tree); 4795extern tree get_scope_of_declarator (const cp_declarator *); 4796extern void grok_special_member_properties (tree); 4797extern int grok_ctor_properties (const_tree, const_tree); 4798extern bool grok_op_properties (tree, bool); 4799extern tree xref_tag (enum tag_types, tree, tag_scope, bool); 4800extern tree xref_tag_from_type (tree, tree, tag_scope); 4801extern bool xref_basetypes (tree, tree); 4802extern tree start_enum (tree, tree, tree, bool, bool *); 4803extern void finish_enum_value_list (tree); 4804extern void finish_enum (tree); 4805extern void build_enumerator (tree, tree, tree, location_t); 4806extern tree lookup_enumerator (tree, tree); 4807extern void start_preparsed_function (tree, tree, int); 4808extern int start_function (cp_decl_specifier_seq *, const cp_declarator *, tree); 4809extern tree begin_function_body (void); 4810extern void finish_function_body (tree); 4811extern tree outer_curly_brace_block (tree); 4812extern tree finish_function (int); 4813extern tree grokmethod (cp_decl_specifier_seq *, const cp_declarator *, tree); 4814extern void maybe_register_incomplete_var (tree); 4815extern void maybe_commonize_var (tree); 4816extern void complete_vars (tree); 4817extern void finish_stmt (void); 4818extern tree static_fn_type (tree); 4819extern void revert_static_member_fn (tree); 4820extern void fixup_anonymous_aggr (tree); 4821extern int check_static_variable_definition (tree, tree); 4822extern tree compute_array_index_type (tree, tree, tsubst_flags_t); 4823extern tree check_default_argument (tree, tree); 4824typedef int (*walk_namespaces_fn) (tree, void *); 4825extern int walk_namespaces (walk_namespaces_fn, 4826 void *); 4827extern int wrapup_globals_for_namespace (tree, void *); 4828extern tree create_implicit_typedef (tree, tree); 4829extern int local_variable_p (const_tree); 4830extern tree register_dtor_fn (tree); 4831extern tmpl_spec_kind current_tmpl_spec_kind (int); 4832extern tree cp_fname_init (const char *, tree *); 4833extern tree cxx_builtin_function (tree decl); 4834extern tree cxx_builtin_function_ext_scope (tree decl); 4835extern tree check_elaborated_type_specifier (enum tag_types, tree, bool); 4836extern void warn_extern_redeclared_static (tree, tree); 4837extern tree cxx_comdat_group (tree); 4838extern bool cp_missing_noreturn_ok_p (tree); 4839extern void initialize_artificial_var (tree, VEC(constructor_elt,gc) *); 4840extern tree check_var_type (tree, tree); 4841extern tree reshape_init (tree, tree); 4842extern tree next_initializable_field (tree); 4843 4844extern bool defer_mark_used_calls; 4845extern GTY(()) VEC(tree, gc) *deferred_mark_used_calls; 4846extern tree finish_case_label (location_t, tree, tree); 4847extern tree cxx_maybe_build_cleanup (tree); 4848 4849/* in decl2.c */ 4850extern bool check_java_method (tree); 4851extern tree build_memfn_type (tree, tree, cp_cv_quals); 4852extern tree change_return_type (tree, tree); 4853extern void maybe_retrofit_in_chrg (tree); 4854extern void maybe_make_one_only (tree); 4855extern bool vague_linkage_p (tree); 4856extern void grokclassfn (tree, tree, 4857 enum overload_flags); 4858extern tree grok_array_decl (tree, tree); 4859extern tree delete_sanity (tree, tree, bool, int); 4860extern tree check_classfn (tree, tree, tree); 4861extern void check_member_template (tree); 4862extern tree grokfield (const cp_declarator *, cp_decl_specifier_seq *, 4863 tree, bool, tree, tree); 4864extern tree grokbitfield (const cp_declarator *, cp_decl_specifier_seq *, 4865 tree, tree); 4866extern tree cp_reconstruct_complex_type (tree, tree); 4867extern void cplus_decl_attributes (tree *, tree, int); 4868extern void finish_anon_union (tree); 4869extern void cp_write_global_declarations (void); 4870extern tree coerce_new_type (tree); 4871extern tree coerce_delete_type (tree); 4872extern void comdat_linkage (tree); 4873extern void determine_visibility (tree); 4874extern void constrain_class_visibility (tree); 4875extern void import_export_decl (tree); 4876extern tree build_cleanup (tree); 4877extern tree build_offset_ref_call_from_tree (tree, VEC(tree,gc) **); 4878extern bool decl_constant_var_p (tree); 4879extern bool decl_maybe_constant_var_p (tree); 4880extern void check_default_args (tree); 4881extern void mark_used (tree); 4882extern void finish_static_data_member_decl (tree, tree, bool, tree, int); 4883extern tree cp_build_parm_decl (tree, tree); 4884extern tree get_guard (tree); 4885extern tree get_guard_cond (tree); 4886extern tree set_guard (tree); 4887extern tree cxx_callgraph_analyze_expr (tree *, int *); 4888extern void mark_needed (tree); 4889extern bool decl_needed_p (tree); 4890extern void note_vague_linkage_fn (tree); 4891extern tree build_artificial_parm (tree, tree); 4892extern bool possibly_inlined_p (tree); 4893extern int parm_index (tree); 4894 4895/* in error.c */ 4896extern void init_error (void); 4897extern const char *type_as_string (tree, int); 4898extern const char *type_as_string_translate (tree, int); 4899extern const char *decl_as_string (tree, int); 4900extern const char *decl_as_string_translate (tree, int); 4901extern const char *expr_as_string (tree, int); 4902extern const char *lang_decl_name (tree, int, bool); 4903extern const char *language_to_string (enum languages); 4904extern const char *class_key_or_enum_as_string (tree); 4905extern void print_instantiation_context (void); 4906extern void maybe_warn_variadic_templates (void); 4907extern void maybe_warn_cpp0x (cpp0x_warn_str str); 4908extern bool pedwarn_cxx98 (location_t, int, const char *, ...) ATTRIBUTE_GCC_DIAG(3,4); 4909extern location_t location_of (tree); 4910extern void qualified_name_lookup_error (tree, tree, tree, 4911 location_t); 4912 4913/* in except.c */ 4914extern void init_exception_processing (void); 4915extern tree expand_start_catch_block (tree); 4916extern void expand_end_catch_block (void); 4917extern tree build_exc_ptr (void); 4918extern tree build_throw (tree); 4919extern int nothrow_libfn_p (const_tree); 4920extern void check_handlers (tree); 4921extern tree finish_noexcept_expr (tree, tsubst_flags_t); 4922extern void perform_deferred_noexcept_checks (void); 4923extern bool nothrow_spec_p (const_tree); 4924extern bool type_noexcept_p (const_tree); 4925extern bool type_throw_all_p (const_tree); 4926extern tree build_noexcept_spec (tree, int); 4927extern void choose_personality_routine (enum languages); 4928extern tree eh_type_info (tree); 4929extern tree begin_eh_spec_block (void); 4930extern void finish_eh_spec_block (tree, tree); 4931extern tree build_eh_type_type (tree); 4932extern tree cp_protect_cleanup_actions (void); 4933 4934/* in expr.c */ 4935extern tree cplus_expand_constant (tree); 4936extern tree mark_rvalue_use (tree); 4937extern tree mark_lvalue_use (tree); 4938extern tree mark_type_use (tree); 4939extern void mark_exp_read (tree); 4940 4941/* friend.c */ 4942extern int is_friend (tree, tree); 4943extern void make_friend_class (tree, tree, bool); 4944extern void add_friend (tree, tree, bool); 4945extern tree do_friend (tree, tree, tree, tree, enum overload_flags, bool); 4946 4947/* in init.c */ 4948extern tree expand_member_init (tree); 4949extern void emit_mem_initializers (tree); 4950extern tree build_aggr_init (tree, tree, int, 4951 tsubst_flags_t); 4952extern int is_class_type (tree, int); 4953extern tree get_type_value (tree); 4954extern tree build_zero_init (tree, tree, bool); 4955extern tree build_value_init (tree, tsubst_flags_t); 4956extern tree build_value_init_noctor (tree, tsubst_flags_t); 4957extern tree build_offset_ref (tree, tree, bool); 4958extern tree build_new (VEC(tree,gc) **, tree, tree, 4959 VEC(tree,gc) **, int, 4960 tsubst_flags_t); 4961extern tree get_temp_regvar (tree, tree); 4962extern tree build_vec_init (tree, tree, tree, bool, int, 4963 tsubst_flags_t); 4964extern tree build_delete (tree, tree, 4965 special_function_kind, 4966 int, int); 4967extern void push_base_cleanups (void); 4968extern tree build_vec_delete (tree, tree, 4969 special_function_kind, int); 4970extern tree create_temporary_var (tree); 4971extern void initialize_vtbl_ptrs (tree); 4972extern tree build_java_class_ref (tree); 4973extern tree integral_constant_value (tree); 4974extern int diagnose_uninitialized_cst_or_ref_member (tree, bool, bool); 4975 4976/* in lex.c */ 4977extern void cxx_dup_lang_specific_decl (tree); 4978extern void yyungetc (int, int); 4979 4980extern tree unqualified_name_lookup_error (tree); 4981extern tree unqualified_fn_lookup_error (tree); 4982extern tree build_lang_decl (enum tree_code, tree, tree); 4983extern tree build_lang_decl_loc (location_t, enum tree_code, tree, tree); 4984extern void retrofit_lang_decl (tree); 4985extern tree copy_decl (tree); 4986extern tree copy_type (tree); 4987extern tree cxx_make_type (enum tree_code); 4988extern tree make_class_type (enum tree_code); 4989extern bool cxx_init (void); 4990extern void cxx_finish (void); 4991extern bool in_main_input_context (void); 4992 4993/* in method.c */ 4994extern void init_method (void); 4995extern tree make_thunk (tree, bool, tree, tree); 4996extern void finish_thunk (tree); 4997extern void use_thunk (tree, bool); 4998extern bool trivial_fn_p (tree); 4999extern bool maybe_explain_implicit_delete (tree); 5000extern void synthesize_method (tree); 5001extern tree lazily_declare_fn (special_function_kind, 5002 tree); 5003extern tree skip_artificial_parms_for (const_tree, tree); 5004extern int num_artificial_parms_for (const_tree); 5005extern tree make_alias_for (tree, tree); 5006extern tree get_copy_ctor (tree, tsubst_flags_t); 5007extern tree get_copy_assign (tree); 5008extern tree get_default_ctor (tree); 5009extern tree get_dtor (tree, tsubst_flags_t); 5010extern tree locate_ctor (tree); 5011 5012/* In optimize.c */ 5013extern bool maybe_clone_body (tree); 5014 5015/* in pt.c */ 5016extern bool check_template_shadow (tree); 5017extern tree get_innermost_template_args (tree, int); 5018extern void maybe_begin_member_template_processing (tree); 5019extern void maybe_end_member_template_processing (void); 5020extern tree finish_member_template_decl (tree); 5021extern void begin_template_parm_list (void); 5022extern bool begin_specialization (void); 5023extern void reset_specialization (void); 5024extern void end_specialization (void); 5025extern void begin_explicit_instantiation (void); 5026extern void end_explicit_instantiation (void); 5027extern tree check_explicit_specialization (tree, tree, int, int); 5028extern tree make_auto (void); 5029extern tree do_auto_deduction (tree, tree, tree); 5030extern tree type_uses_auto (tree); 5031extern void append_type_to_template_for_access_check (tree, tree, tree, 5032 location_t); 5033extern tree splice_late_return_type (tree, tree); 5034extern bool is_auto (const_tree); 5035extern tree process_template_parm (tree, location_t, tree, 5036 bool, bool, unsigned); 5037extern tree end_template_parm_list (tree); 5038void fixup_template_parms (void); 5039extern void end_template_decl (void); 5040extern tree maybe_update_decl_type (tree, tree); 5041extern bool check_default_tmpl_args (tree, tree, int, int, int); 5042extern tree push_template_decl (tree); 5043extern tree push_template_decl_real (tree, bool); 5044extern bool redeclare_class_template (tree, tree); 5045extern tree lookup_template_class (tree, tree, tree, tree, 5046 int, tsubst_flags_t); 5047extern tree lookup_template_function (tree, tree); 5048extern int uses_template_parms (tree); 5049extern int uses_template_parms_level (tree, int); 5050extern tree instantiate_class_template (tree); 5051extern tree instantiate_template (tree, tree, tsubst_flags_t); 5052extern int fn_type_unification (tree, tree, tree, 5053 const tree *, unsigned int, 5054 tree, unification_kind_t, int); 5055extern void mark_decl_instantiated (tree, int); 5056extern int more_specialized_fn (tree, tree, int); 5057extern void do_decl_instantiation (tree, tree); 5058extern void do_type_instantiation (tree, tree, tsubst_flags_t); 5059extern bool always_instantiate_p (tree); 5060extern tree instantiate_decl (tree, int, bool); 5061extern int comp_template_parms (const_tree, const_tree); 5062extern bool uses_parameter_packs (tree); 5063extern bool template_parameter_pack_p (const_tree); 5064extern bool function_parameter_pack_p (const_tree); 5065extern bool function_parameter_expanded_from_pack_p (tree, tree); 5066extern tree make_pack_expansion (tree); 5067extern bool check_for_bare_parameter_packs (tree); 5068extern tree build_template_info (tree, tree); 5069extern tree get_template_info (const_tree); 5070extern VEC(qualified_typedef_usage_t,gc)* get_types_needing_access_check (tree); 5071extern int template_class_depth (tree); 5072extern int is_specialization_of (tree, tree); 5073extern bool is_specialization_of_friend (tree, tree); 5074extern tree get_pattern_parm (tree, tree); 5075extern int comp_template_args (tree, tree); 5076extern tree maybe_process_partial_specialization (tree); 5077extern tree most_specialized_instantiation (tree); 5078extern void print_candidates (tree); 5079extern void instantiate_pending_templates (int); 5080extern tree tsubst_default_argument (tree, tree, tree); 5081extern tree tsubst (tree, tree, tsubst_flags_t, tree); 5082extern tree tsubst_copy_and_build (tree, tree, tsubst_flags_t, 5083 tree, bool, bool); 5084extern tree most_general_template (tree); 5085extern tree get_mostly_instantiated_function_type (tree); 5086extern int problematic_instantiation_changed (void); 5087extern void record_last_problematic_instantiation (void); 5088extern struct tinst_level *current_instantiation(void); 5089extern tree maybe_get_template_decl_from_type_decl (tree); 5090extern int processing_template_parmlist; 5091extern bool dependent_type_p (tree); 5092extern bool dependent_scope_p (tree); 5093extern bool any_dependent_template_arguments_p (const_tree); 5094extern bool dependent_template_p (tree); 5095extern bool dependent_template_id_p (tree, tree); 5096extern bool type_dependent_expression_p (tree); 5097extern bool any_type_dependent_arguments_p (const VEC(tree,gc) *); 5098extern bool type_dependent_expression_p_push (tree); 5099extern bool value_dependent_expression_p (tree); 5100extern bool any_value_dependent_elements_p (const_tree); 5101extern bool dependent_omp_for_p (tree, tree, tree, tree); 5102extern tree resolve_typename_type (tree, bool); 5103extern tree template_for_substitution (tree); 5104extern tree build_non_dependent_expr (tree); 5105extern void make_args_non_dependent (VEC(tree,gc) *); 5106extern bool reregister_specialization (tree, tree, tree); 5107extern tree fold_non_dependent_expr (tree); 5108extern bool explicit_class_specialization_p (tree); 5109extern int push_tinst_level (tree); 5110extern void pop_tinst_level (void); 5111extern struct tinst_level *outermost_tinst_level(void); 5112extern bool parameter_of_template_p (tree, tree); 5113extern void init_template_processing (void); 5114extern void print_template_statistics (void); 5115bool template_template_parameter_p (const_tree); 5116extern bool primary_template_instantiation_p (const_tree); 5117extern tree get_primary_template_innermost_parameters (const_tree); 5118extern tree get_template_parms_at_level (tree, int); 5119extern tree get_template_innermost_arguments (const_tree); 5120extern tree get_template_argument_pack_elems (const_tree); 5121extern tree get_function_template_decl (const_tree); 5122extern tree resolve_nondeduced_context (tree); 5123extern hashval_t iterative_hash_template_arg (tree arg, hashval_t val); 5124 5125/* in repo.c */ 5126extern void init_repo (void); 5127extern int repo_emit_p (tree); 5128extern bool repo_export_class_p (const_tree); 5129extern void finish_repo (void); 5130 5131/* in rtti.c */ 5132/* A vector of all tinfo decls that haven't been emitted yet. */ 5133extern GTY(()) VEC(tree,gc) *unemitted_tinfo_decls; 5134 5135extern void init_rtti_processing (void); 5136extern tree build_typeid (tree); 5137extern tree get_tinfo_decl (tree); 5138extern tree get_typeid (tree); 5139extern tree build_headof (tree); 5140extern tree build_dynamic_cast (tree, tree, tsubst_flags_t); 5141extern void emit_support_tinfos (void); 5142extern bool emit_tinfo_decl (tree); 5143 5144/* in search.c */ 5145extern bool accessible_base_p (tree, tree, bool); 5146extern tree lookup_base (tree, tree, base_access, 5147 base_kind *); 5148extern tree dcast_base_hint (tree, tree); 5149extern int accessible_p (tree, tree, bool); 5150extern tree lookup_field_1 (tree, tree, bool); 5151extern tree lookup_field (tree, tree, int, bool); 5152extern int lookup_fnfields_1 (tree, tree); 5153extern tree lookup_fnfields_slot (tree, tree); 5154extern int class_method_index_for_fn (tree, tree); 5155extern tree lookup_fnfields (tree, tree, int); 5156extern tree lookup_member (tree, tree, int, bool); 5157extern int look_for_overrides (tree, tree); 5158extern void get_pure_virtuals (tree); 5159extern void maybe_suppress_debug_info (tree); 5160extern void note_debug_info_needed (tree); 5161extern void print_search_statistics (void); 5162extern void reinit_search_statistics (void); 5163extern tree current_scope (void); 5164extern int at_function_scope_p (void); 5165extern bool at_class_scope_p (void); 5166extern bool at_namespace_scope_p (void); 5167extern tree context_for_name_lookup (tree); 5168extern tree lookup_conversions (tree); 5169extern tree binfo_from_vbase (tree); 5170extern tree binfo_for_vbase (tree, tree); 5171extern tree look_for_overrides_here (tree, tree); 5172#define dfs_skip_bases ((tree)1) 5173extern tree dfs_walk_all (tree, tree (*) (tree, void *), 5174 tree (*) (tree, void *), void *); 5175extern tree dfs_walk_once (tree, tree (*) (tree, void *), 5176 tree (*) (tree, void *), void *); 5177extern tree binfo_via_virtual (tree, tree); 5178extern tree build_baselink (tree, tree, tree, tree); 5179extern tree adjust_result_of_qualified_name_lookup 5180 (tree, tree, tree); 5181extern tree copied_binfo (tree, tree); 5182extern tree original_binfo (tree, tree); 5183extern int shared_member_p (tree); 5184 5185 5186/* The representation of a deferred access check. */ 5187 5188typedef struct GTY(()) deferred_access_check { 5189 /* The base class in which the declaration is referenced. */ 5190 tree binfo; 5191 /* The declaration whose access must be checked. */ 5192 tree decl; 5193 /* The declaration that should be used in the error message. */ 5194 tree diag_decl; 5195} deferred_access_check; 5196DEF_VEC_O(deferred_access_check); 5197DEF_VEC_ALLOC_O(deferred_access_check,gc); 5198 5199/* in semantics.c */ 5200extern void push_deferring_access_checks (deferring_kind); 5201extern void resume_deferring_access_checks (void); 5202extern void stop_deferring_access_checks (void); 5203extern void pop_deferring_access_checks (void); 5204extern VEC (deferred_access_check,gc)* get_deferred_access_checks (void); 5205extern void pop_to_parent_deferring_access_checks (void); 5206extern void perform_access_checks (VEC (deferred_access_check,gc)*); 5207extern void perform_deferred_access_checks (void); 5208extern void perform_or_defer_access_check (tree, tree, tree); 5209extern bool speculative_access_check (tree, tree, tree, bool); 5210extern int stmts_are_full_exprs_p (void); 5211extern void init_cp_semantics (void); 5212extern tree do_poplevel (tree); 5213extern void add_decl_expr (tree); 5214extern tree finish_expr_stmt (tree); 5215extern tree begin_if_stmt (void); 5216extern void finish_if_stmt_cond (tree, tree); 5217extern tree finish_then_clause (tree); 5218extern void begin_else_clause (tree); 5219extern void finish_else_clause (tree); 5220extern void finish_if_stmt (tree); 5221extern tree begin_while_stmt (void); 5222extern void finish_while_stmt_cond (tree, tree); 5223extern void finish_while_stmt (tree); 5224extern tree begin_do_stmt (void); 5225extern void finish_do_body (tree); 5226extern void finish_do_stmt (tree, tree); 5227extern tree finish_return_stmt (tree); 5228extern tree begin_for_scope (tree *); 5229extern tree begin_for_stmt (tree, tree); 5230extern void finish_for_init_stmt (tree); 5231extern void finish_for_cond (tree, tree); 5232extern void finish_for_expr (tree, tree); 5233extern void finish_for_stmt (tree); 5234extern tree begin_range_for_stmt (tree, tree); 5235extern void finish_range_for_decl (tree, tree, tree); 5236extern void finish_range_for_stmt (tree); 5237extern tree finish_break_stmt (void); 5238extern tree finish_continue_stmt (void); 5239extern tree begin_switch_stmt (void); 5240extern void finish_switch_cond (tree, tree); 5241extern void finish_switch_stmt (tree); 5242extern tree finish_goto_stmt (tree); 5243extern tree begin_try_block (void); 5244extern void finish_try_block (tree); 5245extern void finish_handler_sequence (tree); 5246extern tree begin_function_try_block (tree *); 5247extern void finish_function_try_block (tree); 5248extern void finish_function_handler_sequence (tree, tree); 5249extern void finish_cleanup_try_block (tree); 5250extern tree begin_handler (void); 5251extern void finish_handler_parms (tree, tree); 5252extern void finish_handler (tree); 5253extern void finish_cleanup (tree, tree); 5254extern bool literal_type_p (tree); 5255extern tree validate_constexpr_fundecl (tree); 5256extern tree register_constexpr_fundef (tree, tree); 5257extern bool check_constexpr_ctor_body (tree, tree); 5258extern tree ensure_literal_type_for_constexpr_object (tree); 5259extern bool potential_constant_expression (tree); 5260extern bool potential_rvalue_constant_expression (tree); 5261extern bool require_potential_constant_expression (tree); 5262extern bool require_potential_rvalue_constant_expression (tree); 5263extern tree cxx_constant_value (tree); 5264extern tree maybe_constant_value (tree); 5265extern tree maybe_constant_init (tree); 5266extern bool is_sub_constant_expr (tree); 5267extern bool reduced_constant_expression_p (tree); 5268extern VEC(tree,heap)* cx_error_context (void); 5269 5270enum { 5271 BCS_NO_SCOPE = 1, 5272 BCS_TRY_BLOCK = 2, 5273 BCS_FN_BODY = 4 5274}; 5275extern tree begin_compound_stmt (unsigned int); 5276 5277extern void finish_compound_stmt (tree); 5278extern tree finish_asm_stmt (int, tree, tree, tree, tree, 5279 tree); 5280extern tree finish_label_stmt (tree); 5281extern void finish_label_decl (tree); 5282extern tree finish_parenthesized_expr (tree); 5283extern tree finish_non_static_data_member (tree, tree, tree); 5284extern tree begin_stmt_expr (void); 5285extern tree finish_stmt_expr_expr (tree, tree); 5286extern tree finish_stmt_expr (tree, bool); 5287extern tree stmt_expr_value_expr (tree); 5288bool empty_expr_stmt_p (tree); 5289extern tree perform_koenig_lookup (tree, VEC(tree,gc) *, bool); 5290extern tree finish_call_expr (tree, VEC(tree,gc) **, bool, 5291 bool, tsubst_flags_t); 5292extern tree finish_increment_expr (tree, enum tree_code); 5293extern tree finish_this_expr (void); 5294extern tree finish_pseudo_destructor_expr (tree, tree, tree); 5295extern tree finish_unary_op_expr (enum tree_code, tree); 5296extern tree finish_compound_literal (tree, tree); 5297extern tree finish_fname (tree); 5298extern void finish_translation_unit (void); 5299extern tree finish_template_type_parm (tree, tree); 5300extern tree finish_template_template_parm (tree, tree); 5301extern tree begin_class_definition (tree, tree); 5302extern void finish_template_decl (tree); 5303extern tree finish_template_type (tree, tree, int); 5304extern tree finish_base_specifier (tree, tree, bool); 5305extern void finish_member_declaration (tree); 5306extern tree finish_id_expression (tree, tree, tree, 5307 cp_id_kind *, 5308 bool, bool, bool *, 5309 bool, bool, bool, bool, 5310 const char **, 5311 location_t); 5312extern tree finish_typeof (tree); 5313extern tree finish_offsetof (tree); 5314extern void finish_decl_cleanup (tree, tree); 5315extern void finish_eh_cleanup (tree); 5316extern void emit_associated_thunks (tree); 5317extern void finish_mem_initializers (tree); 5318extern tree check_template_template_default_arg (tree); 5319extern bool expand_or_defer_fn_1 (tree); 5320extern void expand_or_defer_fn (tree); 5321extern void add_typedef_to_current_template_for_access_check (tree, tree, 5322 location_t); 5323extern void check_accessibility_of_qualified_id (tree, tree, tree); 5324extern tree finish_qualified_id_expr (tree, tree, bool, bool, 5325 bool, bool); 5326extern void simplify_aggr_init_expr (tree *); 5327extern void finalize_nrv (tree *, tree, tree); 5328extern void note_decl_for_pch (tree); 5329extern tree finish_omp_clauses (tree); 5330extern void finish_omp_threadprivate (tree); 5331extern tree begin_omp_structured_block (void); 5332extern tree finish_omp_structured_block (tree); 5333extern tree begin_omp_parallel (void); 5334extern tree finish_omp_parallel (tree, tree); 5335extern tree begin_omp_task (void); 5336extern tree finish_omp_task (tree, tree); 5337extern tree finish_omp_for (location_t, tree, tree, 5338 tree, tree, tree, tree, tree); 5339extern void finish_omp_atomic (enum tree_code, tree, tree); 5340extern void finish_omp_barrier (void); 5341extern void finish_omp_flush (void); 5342extern void finish_omp_taskwait (void); 5343extern bool cxx_omp_create_clause_info (tree, tree, bool, bool, bool); 5344extern tree baselink_for_fns (tree); 5345extern void finish_static_assert (tree, tree, location_t, 5346 bool); 5347extern tree describable_type (tree); 5348extern tree finish_decltype_type (tree, bool, tsubst_flags_t); 5349extern tree finish_trait_expr (enum cp_trait_kind, tree, tree); 5350extern tree build_lambda_expr (void); 5351extern tree build_lambda_object (tree); 5352extern tree begin_lambda_type (tree); 5353extern tree lambda_capture_field_type (tree); 5354extern tree lambda_return_type (tree); 5355extern tree lambda_function (tree); 5356extern void apply_lambda_return_type (tree, tree); 5357extern tree add_capture (tree, tree, tree, bool, bool); 5358extern tree add_default_capture (tree, tree, tree); 5359extern void register_capture_members (tree); 5360extern tree lambda_expr_this_capture (tree); 5361extern tree nonlambda_method_basetype (void); 5362extern void maybe_add_lambda_conv_op (tree); 5363 5364/* in tree.c */ 5365void cp_free_lang_data (tree t); 5366extern tree force_target_expr (tree, tree); 5367extern tree build_target_expr_with_type (tree, tree); 5368extern void lang_check_failed (const char *, int, 5369 const char *) ATTRIBUTE_NORETURN; 5370extern tree stabilize_expr (tree, tree *); 5371extern void stabilize_call (tree, tree *); 5372extern void stabilize_aggr_init (tree, tree *); 5373extern bool stabilize_init (tree, tree *); 5374extern tree add_stmt_to_compound (tree, tree); 5375extern void init_tree (void); 5376extern bool pod_type_p (const_tree); 5377extern bool layout_pod_type_p (const_tree); 5378extern bool std_layout_type_p (const_tree); 5379extern bool trivial_type_p (const_tree); 5380extern bool trivially_copyable_p (const_tree); 5381extern bool type_has_nontrivial_default_init (const_tree); 5382extern bool type_has_nontrivial_copy_init (const_tree); 5383extern bool class_tmpl_impl_spec_p (const_tree); 5384extern int zero_init_p (const_tree); 5385extern tree strip_typedefs (tree); 5386extern tree copy_binfo (tree, tree, tree, 5387 tree *, int); 5388extern int member_p (const_tree); 5389extern cp_lvalue_kind real_lvalue_p (const_tree); 5390extern cp_lvalue_kind lvalue_kind (const_tree); 5391extern bool lvalue_or_rvalue_with_address_p (const_tree); 5392extern bool builtin_valid_in_constant_expr_p (const_tree); 5393extern tree build_min (enum tree_code, tree, ...); 5394extern tree build_min_nt (enum tree_code, ...); 5395extern tree build_min_non_dep (enum tree_code, tree, ...); 5396extern tree build_min_non_dep_call_vec (tree, tree, VEC(tree,gc) *); 5397extern tree build_cplus_new (tree, tree); 5398extern tree build_aggr_init_expr (tree, tree); 5399extern tree get_target_expr (tree); 5400extern tree build_cplus_array_type (tree, tree); 5401extern tree build_array_of_n_type (tree, int); 5402extern tree build_array_copy (tree); 5403extern tree build_vec_init_expr (tree, tree); 5404extern void diagnose_non_constexpr_vec_init (tree); 5405extern tree hash_tree_cons (tree, tree, tree); 5406extern tree hash_tree_chain (tree, tree); 5407extern tree build_qualified_name (tree, tree, tree, bool); 5408extern int is_overloaded_fn (tree); 5409extern tree get_fns (tree); 5410extern tree get_first_fn (tree); 5411extern tree ovl_cons (tree, tree); 5412extern tree build_overload (tree, tree); 5413extern bool non_static_member_function_p (tree); 5414extern const char *cxx_printable_name (tree, int); 5415extern const char *cxx_printable_name_translate (tree, int); 5416extern tree build_exception_variant (tree, tree); 5417extern tree bind_template_template_parm (tree, tree); 5418extern tree array_type_nelts_total (tree); 5419extern tree array_type_nelts_top (tree); 5420extern tree break_out_target_exprs (tree); 5421extern tree get_type_decl (tree); 5422extern tree decl_namespace_context (tree); 5423extern bool decl_anon_ns_mem_p (const_tree); 5424extern tree lvalue_type (tree); 5425extern tree error_type (tree); 5426extern int varargs_function_p (const_tree); 5427extern bool really_overloaded_fn (tree); 5428extern bool cp_tree_equal (tree, tree); 5429extern tree no_linkage_check (tree, bool); 5430extern void debug_binfo (tree); 5431extern tree build_dummy_object (tree); 5432extern tree maybe_dummy_object (tree, tree *); 5433extern int is_dummy_object (const_tree); 5434extern const struct attribute_spec cxx_attribute_table[]; 5435extern tree make_ptrmem_cst (tree, tree); 5436extern tree cp_build_type_attribute_variant (tree, tree); 5437extern tree cp_build_reference_type (tree, bool); 5438extern tree move (tree); 5439extern tree cp_build_qualified_type_real (tree, int, tsubst_flags_t); 5440#define cp_build_qualified_type(TYPE, QUALS) \ 5441 cp_build_qualified_type_real ((TYPE), (QUALS), tf_warning_or_error) 5442extern bool cv_qualified_p (const_tree); 5443extern tree cv_unqualified (tree); 5444extern special_function_kind special_function_p (const_tree); 5445extern int count_trees (tree); 5446extern int char_type_p (tree); 5447extern void verify_stmt_tree (tree); 5448extern linkage_kind decl_linkage (tree); 5449extern duration_kind decl_storage_duration (tree); 5450extern tree cp_walk_subtrees (tree*, int*, walk_tree_fn, 5451 void*, struct pointer_set_t*); 5452#define cp_walk_tree(a,b,c,d) \ 5453 walk_tree_1 (a, b, c, d, cp_walk_subtrees) 5454#define cp_walk_tree_without_duplicates(a,b,c) \ 5455 walk_tree_without_duplicates_1 (a, b, c, cp_walk_subtrees) 5456extern tree fold_if_not_in_template (tree); 5457extern tree rvalue (tree); 5458extern tree convert_bitfield_to_declared_type (tree); 5459extern tree cp_save_expr (tree); 5460extern bool cast_valid_in_integral_constant_expression_p (tree); 5461extern bool cxx_type_hash_eq (const_tree, const_tree); 5462 5463extern void cxx_print_statistics (void); 5464 5465/* in ptree.c */ 5466extern void cxx_print_xnode (FILE *, tree, int); 5467extern void cxx_print_decl (FILE *, tree, int); 5468extern void cxx_print_type (FILE *, tree, int); 5469extern void cxx_print_identifier (FILE *, tree, int); 5470extern void cxx_print_error_function (diagnostic_context *, 5471 const char *, 5472 struct diagnostic_info *); 5473 5474/* in typeck.c */ 5475extern bool cxx_mark_addressable (tree); 5476extern int string_conv_p (const_tree, const_tree, int); 5477extern tree cp_truthvalue_conversion (tree); 5478extern tree condition_conversion (tree); 5479extern tree require_complete_type (tree); 5480extern tree require_complete_type_sfinae (tree, tsubst_flags_t); 5481extern tree complete_type (tree); 5482extern tree complete_type_or_else (tree, tree); 5483extern tree complete_type_or_maybe_complain (tree, tree, tsubst_flags_t); 5484extern int type_unknown_p (const_tree); 5485enum { ce_derived, ce_normal, ce_exact }; 5486extern bool comp_except_specs (const_tree, const_tree, int); 5487extern bool comptypes (tree, tree, int); 5488extern bool same_type_ignoring_top_level_qualifiers_p (tree, tree); 5489extern bool compparms (const_tree, const_tree); 5490extern int comp_cv_qualification (const_tree, const_tree); 5491extern int comp_cv_qual_signature (tree, tree); 5492extern tree cxx_sizeof_or_alignof_expr (tree, enum tree_code, bool); 5493extern tree cxx_sizeof_or_alignof_type (tree, enum tree_code, bool); 5494extern tree cxx_sizeof_nowarn (tree); 5495extern tree is_bitfield_expr_with_lowered_type (const_tree); 5496extern tree unlowered_expr_type (const_tree); 5497extern tree decay_conversion (tree); 5498extern tree build_class_member_access_expr (tree, tree, tree, bool, 5499 tsubst_flags_t); 5500extern tree finish_class_member_access_expr (tree, tree, bool, 5501 tsubst_flags_t); 5502extern tree build_x_indirect_ref (tree, ref_operator, 5503 tsubst_flags_t); 5504extern tree cp_build_indirect_ref (tree, ref_operator, 5505 tsubst_flags_t); 5506extern tree build_array_ref (location_t, tree, tree); 5507extern tree cp_build_array_ref (location_t, tree, tree, 5508 tsubst_flags_t); 5509extern tree get_member_function_from_ptrfunc (tree *, tree); 5510extern tree cp_build_function_call (tree, tree, tsubst_flags_t); 5511extern tree cp_build_function_call_nary (tree, tsubst_flags_t, ...) 5512 ATTRIBUTE_SENTINEL; 5513extern tree cp_build_function_call_vec (tree, VEC(tree,gc) **, 5514 tsubst_flags_t); 5515extern tree build_x_binary_op (enum tree_code, tree, 5516 enum tree_code, tree, 5517 enum tree_code, bool *, 5518 tsubst_flags_t); 5519extern tree build_x_array_ref (tree, tree, tsubst_flags_t); 5520extern tree build_x_unary_op (enum tree_code, tree, 5521 tsubst_flags_t); 5522extern tree cp_build_addr_expr (tree, tsubst_flags_t); 5523extern tree cp_build_addr_expr_strict (tree, tsubst_flags_t); 5524extern tree cp_build_unary_op (enum tree_code, tree, int, 5525 tsubst_flags_t); 5526extern tree unary_complex_lvalue (enum tree_code, tree); 5527extern tree build_x_conditional_expr (tree, tree, tree, 5528 tsubst_flags_t); 5529extern tree build_x_compound_expr_from_list (tree, expr_list_kind, 5530 tsubst_flags_t); 5531extern tree build_x_compound_expr_from_vec (VEC(tree,gc) *, const char *); 5532extern tree build_x_compound_expr (tree, tree, tsubst_flags_t); 5533extern tree build_compound_expr (location_t, tree, tree); 5534extern tree cp_build_compound_expr (tree, tree, tsubst_flags_t); 5535extern tree build_static_cast (tree, tree, tsubst_flags_t); 5536extern tree build_reinterpret_cast (tree, tree, tsubst_flags_t); 5537extern tree build_const_cast (tree, tree, tsubst_flags_t); 5538extern tree build_c_cast (location_t, tree, tree); 5539extern tree cp_build_c_cast (tree, tree, tsubst_flags_t); 5540extern tree build_x_modify_expr (tree, enum tree_code, tree, 5541 tsubst_flags_t); 5542extern tree cp_build_modify_expr (tree, enum tree_code, tree, 5543 tsubst_flags_t); 5544extern tree convert_for_initialization (tree, tree, tree, int, 5545 impl_conv_rhs, tree, int, 5546 tsubst_flags_t); 5547extern int comp_ptr_ttypes (tree, tree); 5548extern bool comp_ptr_ttypes_const (tree, tree); 5549extern bool error_type_p (const_tree); 5550extern int ptr_reasonably_similar (const_tree, const_tree); 5551extern tree build_ptrmemfunc (tree, tree, int, bool, 5552 tsubst_flags_t); 5553extern int cp_type_quals (const_tree); 5554extern int type_memfn_quals (const_tree); 5555extern tree apply_memfn_quals (tree, cp_cv_quals); 5556extern bool cp_has_mutable_p (const_tree); 5557extern bool at_least_as_qualified_p (const_tree, const_tree); 5558extern void cp_apply_type_quals_to_decl (int, tree); 5559extern tree build_ptrmemfunc1 (tree, tree, tree); 5560extern void expand_ptrmemfunc_cst (tree, tree *, tree *); 5561extern tree type_after_usual_arithmetic_conversions (tree, tree); 5562extern tree common_pointer_type (tree, tree); 5563extern tree composite_pointer_type (tree, tree, tree, tree, 5564 composite_pointer_operation, 5565 tsubst_flags_t); 5566extern tree merge_types (tree, tree); 5567extern tree strip_array_domain (tree); 5568extern tree check_return_expr (tree, bool *); 5569extern tree cp_build_binary_op (location_t, 5570 enum tree_code, tree, tree, 5571 tsubst_flags_t); 5572#define cxx_sizeof(T) cxx_sizeof_or_alignof_type (T, SIZEOF_EXPR, true) 5573extern tree build_ptrmemfunc_access_expr (tree, tree); 5574extern tree build_address (tree); 5575extern tree build_typed_address (tree, tree); 5576extern tree build_nop (tree, tree); 5577extern tree non_reference (tree); 5578extern tree lookup_anon_field (tree, tree); 5579extern bool invalid_nonstatic_memfn_p (const_tree, tsubst_flags_t); 5580extern tree convert_member_func_to_ptr (tree, tree); 5581extern tree convert_ptrmem (tree, tree, bool, bool, 5582 tsubst_flags_t); 5583extern int lvalue_or_else (tree, enum lvalue_use, 5584 tsubst_flags_t); 5585extern void check_template_keyword (tree); 5586 5587/* in typeck2.c */ 5588extern void require_complete_eh_spec_types (tree, tree); 5589extern void cxx_incomplete_type_diagnostic (const_tree, const_tree, diagnostic_t); 5590#undef cxx_incomplete_type_error 5591extern void cxx_incomplete_type_error (const_tree, const_tree); 5592#define cxx_incomplete_type_error(V,T) \ 5593 (cxx_incomplete_type_diagnostic ((V), (T), DK_ERROR)) 5594extern tree error_not_base_type (tree, tree); 5595extern tree binfo_or_else (tree, tree); 5596extern void cxx_readonly_error (tree, enum lvalue_use); 5597extern void complete_type_check_abstract (tree); 5598extern int abstract_virtuals_error (tree, tree); 5599 5600extern tree store_init_value (tree, tree, int); 5601extern void check_narrowing (tree, tree); 5602extern tree digest_init (tree, tree); 5603extern tree digest_init_flags (tree, tree, int); 5604extern tree build_scoped_ref (tree, tree, tree *); 5605extern tree build_x_arrow (tree); 5606extern tree build_m_component_ref (tree, tree); 5607extern tree build_functional_cast (tree, tree, tsubst_flags_t); 5608extern tree add_exception_specifier (tree, tree, int); 5609extern tree merge_exception_specifiers (tree, tree); 5610 5611/* in mangle.c */ 5612extern void init_mangle (void); 5613extern void mangle_decl (tree); 5614extern const char *mangle_type_string (tree); 5615extern tree mangle_typeinfo_for_type (tree); 5616extern tree mangle_typeinfo_string_for_type (tree); 5617extern tree mangle_vtbl_for_type (tree); 5618extern tree mangle_vtt_for_type (tree); 5619extern tree mangle_ctor_vtbl_for_type (tree, tree); 5620extern tree mangle_thunk (tree, int, tree, tree); 5621extern tree mangle_conv_op_name_for_type (tree); 5622extern tree mangle_guard_variable (tree); 5623extern tree mangle_ref_init_variable (tree); 5624 5625/* in dump.c */ 5626extern bool cp_dump_tree (void *, tree); 5627 5628/* In cp/cp-objcp-common.c. */ 5629 5630extern alias_set_type cxx_get_alias_set (tree); 5631extern bool cxx_warn_unused_global_decl (const_tree); 5632extern size_t cp_tree_size (enum tree_code); 5633extern bool cp_var_mod_type_p (tree, tree); 5634extern void cxx_initialize_diagnostics (diagnostic_context *); 5635extern int cxx_types_compatible_p (tree, tree); 5636extern void init_shadowed_var_for_decl (void); 5637 5638/* in cp-gimplify.c */ 5639extern int cp_gimplify_expr (tree *, gimple_seq *, 5640 gimple_seq *); 5641extern void cp_genericize (tree); 5642extern enum omp_clause_default_kind cxx_omp_predetermined_sharing (tree); 5643extern tree cxx_omp_clause_default_ctor (tree, tree, tree); 5644extern tree cxx_omp_clause_copy_ctor (tree, tree, tree); 5645extern tree cxx_omp_clause_assign_op (tree, tree, tree); 5646extern tree cxx_omp_clause_dtor (tree, tree); 5647extern void cxx_omp_finish_clause (tree); 5648extern bool cxx_omp_privatize_by_reference (const_tree); 5649 5650/* in name-lookup.c */ 5651extern void suggest_alternatives_for (location_t, tree); 5652 5653/* -- end of C++ */ 5654 5655#endif /* ! GCC_CP_TREE_H */ 5656