2015-05-08 Andrew Sutton <andrew.n.sutton@gmail.com>
[official-gcc.git] / gcc / cp / cp-tree.h
blob1434c3a2951f2dde82e90d3dc6def4c44ae2d589
1 /* Definitions for C++ parsing and type checking.
2 Copyright (C) 1987-2015 Free Software Foundation, Inc.
3 Contributed by Michael Tiemann (tiemann@cygnus.com)
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3, or (at your option)
10 any later version.
12 GCC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING3. If not see
19 <http://www.gnu.org/licenses/>. */
21 #ifndef GCC_CP_TREE_H
22 #define GCC_CP_TREE_H
24 #include "ggc.h"
25 #include "hashtab.h"
26 #include "hash-set.h"
27 #include "vec.h"
28 #include "machmode.h"
29 #include "tm.h"
30 #include "hard-reg-set.h"
31 #include "input.h"
32 #include "function.h"
33 #include "hash-map.h"
35 // Require that pointer P is non-null before returning.
36 template<typename T>
37 inline T*
38 check_nonnull (T* p)
40 gcc_assert (p);
41 return p;
44 /* In order for the format checking to accept the C++ front end
45 diagnostic framework extensions, you must include this file before
46 diagnostic-core.h, not after. We override the definition of GCC_DIAG_STYLE
47 in c-common.h. */
48 #undef GCC_DIAG_STYLE
49 #define GCC_DIAG_STYLE __gcc_cxxdiag__
50 #if defined(GCC_DIAGNOSTIC_CORE_H) || defined (GCC_C_COMMON_H)
51 #error \
52 In order for the format checking to accept the C++ front end diagnostic \
53 framework extensions, you must include this file before diagnostic-core.h and \
54 c-common.h, not after.
55 #endif
56 #include "c-family/c-common.h"
57 #include "diagnostic.h"
59 #include "name-lookup.h"
61 /* Usage of TREE_LANG_FLAG_?:
62 0: IDENTIFIER_MARKED (IDENTIFIER_NODEs)
63 NEW_EXPR_USE_GLOBAL (in NEW_EXPR).
64 DELETE_EXPR_USE_GLOBAL (in DELETE_EXPR).
65 COMPOUND_EXPR_OVERLOADED (in COMPOUND_EXPR).
66 CLEANUP_P (in TRY_BLOCK)
67 AGGR_INIT_VIA_CTOR_P (in AGGR_INIT_EXPR)
68 PTRMEM_OK_P (in ADDR_EXPR, OFFSET_REF, SCOPE_REF)
69 PAREN_STRING_LITERAL (in STRING_CST)
70 DECL_GNU_TLS_P (in VAR_DECL)
71 KOENIG_LOOKUP_P (in CALL_EXPR)
72 STATEMENT_LIST_NO_SCOPE (in STATEMENT_LIST).
73 EXPR_STMT_STMT_EXPR_RESULT (in EXPR_STMT)
74 STMT_EXPR_NO_SCOPE (in STMT_EXPR)
75 BIND_EXPR_TRY_BLOCK (in BIND_EXPR)
76 TYPENAME_IS_ENUM_P (in TYPENAME_TYPE)
77 OMP_FOR_GIMPLIFYING_P (in OMP_FOR, OMP_SIMD and OMP_DISTRIBUTE)
78 BASELINK_QUALIFIED_P (in BASELINK)
79 TARGET_EXPR_IMPLICIT_P (in TARGET_EXPR)
80 TEMPLATE_PARM_PARAMETER_PACK (in TEMPLATE_PARM_INDEX)
81 TREE_INDIRECT_USING (in a TREE_LIST of using-directives)
82 ATTR_IS_DEPENDENT (in the TREE_LIST for an attribute)
83 ABI_TAG_IMPLICIT (in the TREE_LIST for the argument of abi_tag)
84 CONSTRUCTOR_IS_DIRECT_INIT (in CONSTRUCTOR)
85 LAMBDA_EXPR_CAPTURES_THIS_P (in LAMBDA_EXPR)
86 DECLTYPE_FOR_LAMBDA_CAPTURE (in DECLTYPE_TYPE)
87 VEC_INIT_EXPR_IS_CONSTEXPR (in VEC_INIT_EXPR)
88 DECL_OVERRIDE_P (in FUNCTION_DECL)
89 IMPLICIT_CONV_EXPR_DIRECT_INIT (in IMPLICIT_CONV_EXPR)
90 TRANSACTION_EXPR_IS_STMT (in TRANSACTION_EXPR)
91 CONVERT_EXPR_VBASE_PATH (in CONVERT_EXPR)
92 OVL_ARG_DEPENDENT (in OVERLOAD)
93 PACK_EXPANSION_LOCAL_P (in *_PACK_EXPANSION)
94 TINFO_HAS_ACCESS_ERRORS (in TEMPLATE_INFO)
95 SIZEOF_EXPR_TYPE_P (in SIZEOF_EXPR)
96 COMPOUND_REQ_NOEXCEPT_P (in COMPOUND_REQ)
97 WILDCARD_PACK_P (in WILDCARD_DECL)
98 BLOCK_OUTER_CURLY_BRACE_P (in BLOCK)
99 1: IDENTIFIER_VIRTUAL_P (in IDENTIFIER_NODE)
100 TI_PENDING_TEMPLATE_FLAG.
101 TEMPLATE_PARMS_FOR_INLINE.
102 DELETE_EXPR_USE_VEC (in DELETE_EXPR).
103 (TREE_CALLS_NEW) (in _EXPR or _REF) (commented-out).
104 ICS_ELLIPSIS_FLAG (in _CONV)
105 DECL_INITIALIZED_P (in VAR_DECL)
106 TYPENAME_IS_CLASS_P (in TYPENAME_TYPE)
107 STMT_IS_FULL_EXPR_P (in _STMT)
108 TARGET_EXPR_LIST_INIT_P (in TARGET_EXPR)
109 LAMBDA_EXPR_MUTABLE_P (in LAMBDA_EXPR)
110 DECL_FINAL_P (in FUNCTION_DECL)
111 QUALIFIED_NAME_IS_TEMPLATE (in SCOPE_REF)
112 DECLTYPE_FOR_INIT_CAPTURE (in DECLTYPE_TYPE)
113 CONSTRUCTOR_NO_IMPLICIT_ZERO (in CONSTRUCTOR)
114 TINFO_USED_TEMPLATE_ID (in TEMPLATE_INFO)
115 2: IDENTIFIER_OPNAME_P (in IDENTIFIER_NODE)
116 ICS_THIS_FLAG (in _CONV)
117 DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (in VAR_DECL)
118 STATEMENT_LIST_TRY_BLOCK (in STATEMENT_LIST)
119 TYPENAME_IS_RESOLVING_P (in TYPE_NAME_TYPE)
120 TARGET_EXPR_DIRECT_INIT_P (in TARGET_EXPR)
121 FNDECL_USED_AUTO (in FUNCTION_DECL)
122 DECLTYPE_FOR_LAMBDA_PROXY (in DECLTYPE_TYPE)
123 REF_PARENTHESIZED_P (in COMPONENT_REF, INDIRECT_REF)
124 AGGR_INIT_ZERO_FIRST (in AGGR_INIT_EXPR)
125 CONSTRUCTOR_MUTABLE_POISON (in CONSTRUCTOR)
126 3: (TREE_REFERENCE_EXPR) (in NON_LVALUE_EXPR) (commented-out).
127 ICS_BAD_FLAG (in _CONV)
128 FN_TRY_BLOCK_P (in TRY_BLOCK)
129 IDENTIFIER_CTOR_OR_DTOR_P (in IDENTIFIER_NODE)
130 BIND_EXPR_BODY_BLOCK (in BIND_EXPR)
131 DECL_NON_TRIVIALLY_INITIALIZED_P (in VAR_DECL)
132 CALL_EXPR_LIST_INIT_P (in CALL_EXPR, AGGR_INIT_EXPR)
133 4: TREE_HAS_CONSTRUCTOR (in INDIRECT_REF, SAVE_EXPR, CONSTRUCTOR,
134 or FIELD_DECL).
135 IDENTIFIER_TYPENAME_P (in IDENTIFIER_NODE)
136 DECL_TINFO_P (in VAR_DECL)
137 FUNCTION_REF_QUALIFIED (in FUNCTION_TYPE, METHOD_TYPE)
138 5: C_IS_RESERVED_WORD (in IDENTIFIER_NODE)
139 DECL_VTABLE_OR_VTT_P (in VAR_DECL)
140 FUNCTION_RVALUE_QUALIFIED (in FUNCTION_TYPE, METHOD_TYPE)
141 6: IDENTIFIER_REPO_CHOSEN (in IDENTIFIER_NODE)
142 DECL_CONSTRUCTION_VTABLE_P (in VAR_DECL)
143 TYPE_MARKED_P (in _TYPE)
144 RANGE_FOR_IVDEP (in RANGE_FOR_STMT)
146 Usage of TYPE_LANG_FLAG_?:
147 0: TYPE_DEPENDENT_P
148 1: TYPE_HAS_USER_CONSTRUCTOR.
149 2: TYPE_HAS_LATE_RETURN_TYPE (in FUNCTION_TYPE, METHOD_TYPE)
150 TYPE_PTRMEMFUNC_FLAG (in RECORD_TYPE)
151 3: TYPE_FOR_JAVA.
152 4: TYPE_HAS_NONTRIVIAL_DESTRUCTOR
153 5: CLASS_TYPE_P (in RECORD_TYPE and UNION_TYPE)
154 ENUM_FIXED_UNDERLYING_TYPE_P (in ENUMERAL_TYPE)
155 AUTO_IS_DECLTYPE (in TEMPLATE_TYPE_PARM)
156 REFERENCE_VLA_OK (in REFERENCE_TYPE)
157 6: TYPE_DEPENDENT_P_VALID
159 Usage of DECL_LANG_FLAG_?:
160 0: DECL_ERROR_REPORTED (in VAR_DECL).
161 DECL_TEMPLATE_PARM_P (in PARM_DECL, CONST_DECL, TYPE_DECL, or TEMPLATE_DECL)
162 DECL_LOCAL_FUNCTION_P (in FUNCTION_DECL)
163 DECL_MUTABLE_P (in FIELD_DECL)
164 DECL_DEPENDENT_P (in USING_DECL)
165 LABEL_DECL_BREAK (in LABEL_DECL)
166 1: C_TYPEDEF_EXPLICITLY_SIGNED (in TYPE_DECL).
167 DECL_TEMPLATE_INSTANTIATED (in a VAR_DECL or a FUNCTION_DECL)
168 DECL_MEMBER_TEMPLATE_P (in TEMPLATE_DECL)
169 USING_DECL_TYPENAME_P (in USING_DECL)
170 DECL_VLA_CAPTURE_P (in FIELD_DECL)
171 DECL_ARRAY_PARAMETER_P (in PARM_DECL)
172 LABEL_DECL_CONTINUE (in LABEL_DECL)
173 2: DECL_THIS_EXTERN (in VAR_DECL or FUNCTION_DECL).
174 DECL_IMPLICIT_TYPEDEF_P (in a TYPE_DECL)
175 DECL_CONSTRAINT_VAR_P (in a PARM_DECL)
176 3: DECL_IN_AGGR_P.
177 4: DECL_C_BIT_FIELD (in a FIELD_DECL)
178 DECL_ANON_UNION_VAR_P (in a VAR_DECL)
179 DECL_SELF_REFERENCE_P (in a TYPE_DECL)
180 DECL_INVALID_OVERRIDER_P (in a FUNCTION_DECL)
181 5: DECL_INTERFACE_KNOWN.
182 6: DECL_THIS_STATIC (in VAR_DECL or FUNCTION_DECL).
183 DECL_FIELD_IS_BASE (in FIELD_DECL)
184 TYPE_DECL_ALIAS_P (in TYPE_DECL)
185 7: DECL_DEAD_FOR_LOCAL (in VAR_DECL).
186 DECL_THUNK_P (in a member FUNCTION_DECL)
187 DECL_NORMAL_CAPTURE_P (in FIELD_DECL)
188 8: DECL_DECLARED_CONSTEXPR_P (in VAR_DECL, FUNCTION_DECL)
190 Usage of language-independent fields in a language-dependent manner:
192 TYPE_ALIAS_SET
193 This field is used by TYPENAME_TYPEs, TEMPLATE_TYPE_PARMs, and so
194 forth as a substitute for the mark bits provided in `lang_type'.
195 At present, only the six low-order bits are used.
197 TYPE_LANG_SLOT_1
198 For an ENUMERAL_TYPE, this is ENUM_TEMPLATE_INFO.
199 For a FUNCTION_TYPE or METHOD_TYPE, this is TYPE_RAISES_EXCEPTIONS
201 BINFO_VIRTUALS
202 For a binfo, this is a TREE_LIST. There is an entry for each
203 virtual function declared either in BINFO or its direct and
204 indirect primary bases.
206 The BV_DELTA of each node gives the amount by which to adjust the
207 `this' pointer when calling the function. If the method is an
208 overridden version of a base class method, then it is assumed
209 that, prior to adjustment, the this pointer points to an object
210 of the base class.
212 The BV_VCALL_INDEX of each node, if non-NULL, gives the vtable
213 index of the vcall offset for this entry.
215 The BV_FN is the declaration for the virtual function itself.
217 If BV_LOST_PRIMARY is set, it means that this entry is for a lost
218 primary virtual base and can be left null in the vtable.
220 BINFO_VTABLE
221 This is an expression with POINTER_TYPE that gives the value
222 to which the vptr should be initialized. Use get_vtbl_decl_for_binfo
223 to extract the VAR_DECL for the complete vtable.
225 DECL_VINDEX
226 This field is NULL for a non-virtual function. For a virtual
227 function, it is eventually set to an INTEGER_CST indicating the
228 index in the vtable at which this function can be found. When
229 a virtual function is declared, but before it is known what
230 function is overridden, this field is the error_mark_node.
232 Temporarily, it may be set to a TREE_LIST whose TREE_VALUE is
233 the virtual function this one overrides, and whose TREE_CHAIN is
234 the old DECL_VINDEX. */
236 /* Language-specific tree checkers. */
238 #define VAR_OR_FUNCTION_DECL_CHECK(NODE) \
239 TREE_CHECK2(NODE,VAR_DECL,FUNCTION_DECL)
241 #define TYPE_FUNCTION_OR_TEMPLATE_DECL_CHECK(NODE) \
242 TREE_CHECK3(NODE,TYPE_DECL,TEMPLATE_DECL,FUNCTION_DECL)
244 #define TYPE_FUNCTION_OR_TEMPLATE_DECL_P(NODE) \
245 (TREE_CODE (NODE) == TYPE_DECL || TREE_CODE (NODE) == TEMPLATE_DECL \
246 || TREE_CODE (NODE) == FUNCTION_DECL)
248 #define VAR_FUNCTION_OR_PARM_DECL_CHECK(NODE) \
249 TREE_CHECK3(NODE,VAR_DECL,FUNCTION_DECL,PARM_DECL)
251 #define VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK(NODE) \
252 TREE_CHECK4(NODE,VAR_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL)
254 #define VAR_TEMPL_TYPE_FIELD_OR_FUNCTION_DECL_CHECK(NODE) \
255 TREE_CHECK5(NODE,VAR_DECL,FIELD_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL)
257 #define BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK(NODE) \
258 TREE_CHECK(NODE,BOUND_TEMPLATE_TEMPLATE_PARM)
260 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
261 #define THUNK_FUNCTION_CHECK(NODE) __extension__ \
262 ({ __typeof (NODE) const __t = (NODE); \
263 if (TREE_CODE (__t) != FUNCTION_DECL || !__t->decl_common.lang_specific \
264 || !__t->decl_common.lang_specific->u.fn.thunk_p) \
265 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, 0); \
266 __t; })
267 #else
268 #define THUNK_FUNCTION_CHECK(NODE) (NODE)
269 #endif
271 /* Language-dependent contents of an identifier. */
273 struct GTY(()) lang_identifier {
274 struct c_common_identifier c_common;
275 cxx_binding *namespace_bindings;
276 cxx_binding *bindings;
277 tree class_template_info;
278 tree label_value;
281 /* Return a typed pointer version of T if it designates a
282 C++ front-end identifier. */
283 inline lang_identifier*
284 identifier_p (tree t)
286 if (TREE_CODE (t) == IDENTIFIER_NODE)
287 return (lang_identifier*) t;
288 return NULL;
291 /* In an IDENTIFIER_NODE, nonzero if this identifier is actually a
292 keyword. C_RID_CODE (node) is then the RID_* value of the keyword,
293 and C_RID_YYCODE is the token number wanted by Yacc. */
295 #define C_IS_RESERVED_WORD(ID) TREE_LANG_FLAG_5 (ID)
297 #define LANG_IDENTIFIER_CAST(NODE) \
298 ((struct lang_identifier*)IDENTIFIER_NODE_CHECK (NODE))
300 struct GTY(()) template_parm_index_s {
301 struct tree_common common;
302 int index;
303 int level;
304 int orig_level;
305 tree decl;
307 typedef struct template_parm_index_s template_parm_index;
309 struct GTY(()) ptrmem_cst {
310 struct tree_common common;
311 tree member;
313 typedef struct ptrmem_cst * ptrmem_cst_t;
315 #define IDENTIFIER_GLOBAL_VALUE(NODE) \
316 namespace_binding ((NODE), global_namespace)
317 #define SET_IDENTIFIER_GLOBAL_VALUE(NODE, VAL) \
318 set_namespace_binding ((NODE), global_namespace, (VAL))
319 #define IDENTIFIER_NAMESPACE_VALUE(NODE) \
320 namespace_binding ((NODE), current_namespace)
321 #define SET_IDENTIFIER_NAMESPACE_VALUE(NODE, VAL) \
322 set_namespace_binding ((NODE), current_namespace, (VAL))
324 #define CLEANUP_P(NODE) TREE_LANG_FLAG_0 (TRY_BLOCK_CHECK (NODE))
326 #define BIND_EXPR_TRY_BLOCK(NODE) \
327 TREE_LANG_FLAG_0 (BIND_EXPR_CHECK (NODE))
329 /* Used to mark the block around the member initializers and cleanups. */
330 #define BIND_EXPR_BODY_BLOCK(NODE) \
331 TREE_LANG_FLAG_3 (BIND_EXPR_CHECK (NODE))
332 #define FUNCTION_NEEDS_BODY_BLOCK(NODE) \
333 (DECL_CONSTRUCTOR_P (NODE) || DECL_DESTRUCTOR_P (NODE) \
334 || LAMBDA_FUNCTION_P (NODE))
336 #define STATEMENT_LIST_NO_SCOPE(NODE) \
337 TREE_LANG_FLAG_0 (STATEMENT_LIST_CHECK (NODE))
338 #define STATEMENT_LIST_TRY_BLOCK(NODE) \
339 TREE_LANG_FLAG_2 (STATEMENT_LIST_CHECK (NODE))
341 /* Mark the outer curly brace BLOCK. */
342 #define BLOCK_OUTER_CURLY_BRACE_P(NODE) TREE_LANG_FLAG_0 (BLOCK_CHECK (NODE))
344 /* Nonzero if this statement should be considered a full-expression,
345 i.e., if temporaries created during this statement should have
346 their destructors run at the end of this statement. */
347 #define STMT_IS_FULL_EXPR_P(NODE) TREE_LANG_FLAG_1 ((NODE))
349 /* Marks the result of a statement expression. */
350 #define EXPR_STMT_STMT_EXPR_RESULT(NODE) \
351 TREE_LANG_FLAG_0 (EXPR_STMT_CHECK (NODE))
353 /* Nonzero if this statement-expression does not have an associated scope. */
354 #define STMT_EXPR_NO_SCOPE(NODE) \
355 TREE_LANG_FLAG_0 (STMT_EXPR_CHECK (NODE))
357 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, in the usual
358 sense of `same'. */
359 #define same_type_p(TYPE1, TYPE2) \
360 comptypes ((TYPE1), (TYPE2), COMPARE_STRICT)
362 /* Returns nonzero iff NODE is a declaration for the global function
363 `main'. */
364 #define DECL_MAIN_P(NODE) \
365 (DECL_EXTERN_C_FUNCTION_P (NODE) \
366 && DECL_NAME (NODE) != NULL_TREE \
367 && MAIN_NAME_P (DECL_NAME (NODE)) \
368 && flag_hosted)
370 /* The overloaded FUNCTION_DECL. */
371 #define OVL_FUNCTION(NODE) \
372 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->function)
373 #define OVL_CHAIN(NODE) TREE_CHAIN (NODE)
374 /* Polymorphic access to FUNCTION and CHAIN. */
375 #define OVL_CURRENT(NODE) \
376 ((TREE_CODE (NODE) == OVERLOAD) ? OVL_FUNCTION (NODE) : (NODE))
377 #define OVL_NEXT(NODE) \
378 ((TREE_CODE (NODE) == OVERLOAD) ? TREE_CHAIN (NODE) : NULL_TREE)
379 /* If set, this was imported in a using declaration.
380 This is not to confuse with being used somewhere, which
381 is not important for this node. */
382 #define OVL_USED(NODE) TREE_USED (OVERLOAD_CHECK (NODE))
383 /* If set, this OVERLOAD was created for argument-dependent lookup
384 and can be freed afterward. */
385 #define OVL_ARG_DEPENDENT(NODE) TREE_LANG_FLAG_0 (OVERLOAD_CHECK (NODE))
387 struct GTY(()) tree_overload {
388 struct tree_common common;
389 tree function;
392 struct GTY(()) tree_template_decl {
393 struct tree_decl_common common;
394 tree arguments;
395 tree result;
398 /* Returns true iff NODE is a BASELINK. */
399 #define BASELINK_P(NODE) \
400 (TREE_CODE (NODE) == BASELINK)
401 /* The BINFO indicating the base in which lookup found the
402 BASELINK_FUNCTIONS. */
403 #define BASELINK_BINFO(NODE) \
404 (((struct tree_baselink*) BASELINK_CHECK (NODE))->binfo)
405 /* The functions referred to by the BASELINK; either a FUNCTION_DECL,
406 a TEMPLATE_DECL, an OVERLOAD, or a TEMPLATE_ID_EXPR. */
407 #define BASELINK_FUNCTIONS(NODE) \
408 (((struct tree_baselink*) BASELINK_CHECK (NODE))->functions)
409 /* The BINFO in which the search for the functions indicated by this baselink
410 began. This base is used to determine the accessibility of functions
411 selected by overload resolution. */
412 #define BASELINK_ACCESS_BINFO(NODE) \
413 (((struct tree_baselink*) BASELINK_CHECK (NODE))->access_binfo)
414 /* For a type-conversion operator, the BASELINK_OPTYPE indicates the type
415 to which the conversion should occur. This value is important if
416 the BASELINK_FUNCTIONS include a template conversion operator --
417 the BASELINK_OPTYPE can be used to determine what type the user
418 requested. */
419 #define BASELINK_OPTYPE(NODE) \
420 (TREE_CHAIN (BASELINK_CHECK (NODE)))
421 /* Nonzero if this baselink was from a qualified lookup. */
422 #define BASELINK_QUALIFIED_P(NODE) \
423 TREE_LANG_FLAG_0 (BASELINK_CHECK (NODE))
425 struct GTY(()) tree_baselink {
426 struct tree_common common;
427 tree binfo;
428 tree functions;
429 tree access_binfo;
432 /* The different kinds of ids that we encounter. */
434 typedef enum cp_id_kind
436 /* Not an id at all. */
437 CP_ID_KIND_NONE,
438 /* An unqualified-id that is not a template-id. */
439 CP_ID_KIND_UNQUALIFIED,
440 /* An unqualified-id that is a dependent name. */
441 CP_ID_KIND_UNQUALIFIED_DEPENDENT,
442 /* An unqualified template-id. */
443 CP_ID_KIND_TEMPLATE_ID,
444 /* A qualified-id. */
445 CP_ID_KIND_QUALIFIED
446 } cp_id_kind;
449 /* The various kinds of C++0x warnings we encounter. */
451 typedef enum cpp0x_warn_str
453 /* extended initializer lists */
454 CPP0X_INITIALIZER_LISTS,
455 /* explicit conversion operators */
456 CPP0X_EXPLICIT_CONVERSION,
457 /* variadic templates */
458 CPP0X_VARIADIC_TEMPLATES,
459 /* lambda expressions */
460 CPP0X_LAMBDA_EXPR,
461 /* C++0x auto */
462 CPP0X_AUTO,
463 /* scoped enums */
464 CPP0X_SCOPED_ENUMS,
465 /* defaulted and deleted functions */
466 CPP0X_DEFAULTED_DELETED,
467 /* inline namespaces */
468 CPP0X_INLINE_NAMESPACES,
469 /* override controls, override/final */
470 CPP0X_OVERRIDE_CONTROLS,
471 /* non-static data member initializers */
472 CPP0X_NSDMI,
473 /* user defined literals */
474 CPP0X_USER_DEFINED_LITERALS,
475 /* delegating constructors */
476 CPP0X_DELEGATING_CTORS,
477 /* inheriting constructors */
478 CPP0X_INHERITING_CTORS,
479 /* C++11 attributes */
480 CPP0X_ATTRIBUTES,
481 /* ref-qualified member functions */
482 CPP0X_REF_QUALIFIER
483 } cpp0x_warn_str;
485 /* The various kinds of operation used by composite_pointer_type. */
487 typedef enum composite_pointer_operation
489 /* comparison */
490 CPO_COMPARISON,
491 /* conversion */
492 CPO_CONVERSION,
493 /* conditional expression */
494 CPO_CONDITIONAL_EXPR
495 } composite_pointer_operation;
497 /* Possible cases of expression list used by build_x_compound_expr_from_list. */
498 typedef enum expr_list_kind {
499 ELK_INIT, /* initializer */
500 ELK_MEM_INIT, /* member initializer */
501 ELK_FUNC_CAST /* functional cast */
502 } expr_list_kind;
504 /* Possible cases of implicit bad rhs conversions. */
505 typedef enum impl_conv_rhs {
506 ICR_DEFAULT_ARGUMENT, /* default argument */
507 ICR_CONVERTING, /* converting */
508 ICR_INIT, /* initialization */
509 ICR_ARGPASS, /* argument passing */
510 ICR_RETURN, /* return */
511 ICR_ASSIGN /* assignment */
512 } impl_conv_rhs;
514 /* Possible cases of implicit or explicit bad conversions to void. */
515 typedef enum impl_conv_void {
516 ICV_CAST, /* (explicit) conversion to void */
517 ICV_SECOND_OF_COND, /* second operand of conditional expression */
518 ICV_THIRD_OF_COND, /* third operand of conditional expression */
519 ICV_RIGHT_OF_COMMA, /* right operand of comma operator */
520 ICV_LEFT_OF_COMMA, /* left operand of comma operator */
521 ICV_STATEMENT, /* statement */
522 ICV_THIRD_IN_FOR /* for increment expression */
523 } impl_conv_void;
525 /* Possible invalid uses of an abstract class that might not have a
526 specific associated declaration. */
527 typedef enum abstract_class_use {
528 ACU_UNKNOWN, /* unknown or decl provided */
529 ACU_CAST, /* cast to abstract class */
530 ACU_NEW, /* new-expression of abstract class */
531 ACU_THROW, /* throw-expression of abstract class */
532 ACU_CATCH, /* catch-parameter of abstract class */
533 ACU_ARRAY, /* array of abstract class */
534 ACU_RETURN, /* return type of abstract class */
535 ACU_PARM /* parameter type of abstract class */
536 } abstract_class_use;
538 /* Macros for access to language-specific slots in an identifier. */
540 #define IDENTIFIER_NAMESPACE_BINDINGS(NODE) \
541 (LANG_IDENTIFIER_CAST (NODE)->namespace_bindings)
542 #define IDENTIFIER_TEMPLATE(NODE) \
543 (LANG_IDENTIFIER_CAST (NODE)->class_template_info)
545 /* The IDENTIFIER_BINDING is the innermost cxx_binding for the
546 identifier. It's PREVIOUS is the next outermost binding. Each
547 VALUE field is a DECL for the associated declaration. Thus,
548 name lookup consists simply of pulling off the node at the front
549 of the list (modulo oddities for looking up the names of types,
550 and such.) You can use SCOPE field to determine the scope
551 that bound the name. */
552 #define IDENTIFIER_BINDING(NODE) \
553 (LANG_IDENTIFIER_CAST (NODE)->bindings)
555 /* TREE_TYPE only indicates on local and class scope the current
556 type. For namespace scope, the presence of a type in any namespace
557 is indicated with global_type_node, and the real type behind must
558 be found through lookup. */
559 #define IDENTIFIER_TYPE_VALUE(NODE) identifier_type_value (NODE)
560 #define REAL_IDENTIFIER_TYPE_VALUE(NODE) TREE_TYPE (NODE)
561 #define SET_IDENTIFIER_TYPE_VALUE(NODE,TYPE) (TREE_TYPE (NODE) = (TYPE))
562 #define IDENTIFIER_HAS_TYPE_VALUE(NODE) (IDENTIFIER_TYPE_VALUE (NODE) ? 1 : 0)
564 #define IDENTIFIER_LABEL_VALUE(NODE) \
565 (LANG_IDENTIFIER_CAST (NODE)->label_value)
566 #define SET_IDENTIFIER_LABEL_VALUE(NODE, VALUE) \
567 IDENTIFIER_LABEL_VALUE (NODE) = (VALUE)
569 /* Nonzero if this identifier is used as a virtual function name somewhere
570 (optimizes searches). */
571 #define IDENTIFIER_VIRTUAL_P(NODE) TREE_LANG_FLAG_1 (NODE)
573 /* Nonzero if this identifier is the prefix for a mangled C++ operator
574 name. */
575 #define IDENTIFIER_OPNAME_P(NODE) TREE_LANG_FLAG_2 (NODE)
577 /* Nonzero if this identifier is the name of a type-conversion
578 operator. */
579 #define IDENTIFIER_TYPENAME_P(NODE) \
580 TREE_LANG_FLAG_4 (NODE)
582 /* Nonzero if this identifier is the name of a constructor or
583 destructor. */
584 #define IDENTIFIER_CTOR_OR_DTOR_P(NODE) \
585 TREE_LANG_FLAG_3 (NODE)
587 /* True iff NAME is the DECL_ASSEMBLER_NAME for an entity with vague
588 linkage which the prelinker has assigned to this translation
589 unit. */
590 #define IDENTIFIER_REPO_CHOSEN(NAME) \
591 (TREE_LANG_FLAG_6 (NAME))
593 /* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */
594 #define C_TYPE_FIELDS_READONLY(TYPE) \
595 (LANG_TYPE_CLASS_CHECK (TYPE)->fields_readonly)
597 /* The tokens stored in the default argument. */
599 #define DEFARG_TOKENS(NODE) \
600 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->tokens)
601 #define DEFARG_INSTANTIATIONS(NODE) \
602 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->instantiations)
604 struct GTY (()) tree_default_arg {
605 struct tree_common common;
606 struct cp_token_cache *tokens;
607 vec<tree, va_gc> *instantiations;
611 #define DEFERRED_NOEXCEPT_PATTERN(NODE) \
612 (((struct tree_deferred_noexcept *)DEFERRED_NOEXCEPT_CHECK (NODE))->pattern)
613 #define DEFERRED_NOEXCEPT_ARGS(NODE) \
614 (((struct tree_deferred_noexcept *)DEFERRED_NOEXCEPT_CHECK (NODE))->args)
615 #define DEFERRED_NOEXCEPT_SPEC_P(NODE) \
616 ((NODE) && (TREE_PURPOSE (NODE)) \
617 && (TREE_CODE (TREE_PURPOSE (NODE)) == DEFERRED_NOEXCEPT))
618 #define UNEVALUATED_NOEXCEPT_SPEC_P(NODE) \
619 (DEFERRED_NOEXCEPT_SPEC_P (NODE) \
620 && DEFERRED_NOEXCEPT_PATTERN (TREE_PURPOSE (NODE)) == NULL_TREE)
622 struct GTY (()) tree_deferred_noexcept {
623 struct tree_base base;
624 tree pattern;
625 tree args;
629 /* The condition associated with the static assertion. This must be
630 an integral constant expression. */
631 #define STATIC_ASSERT_CONDITION(NODE) \
632 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->condition)
634 /* The message associated with the static assertion. This must be a
635 string constant, which will be emitted as an error message when the
636 static assert condition is false. */
637 #define STATIC_ASSERT_MESSAGE(NODE) \
638 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->message)
640 /* Source location information for a static assertion. */
641 #define STATIC_ASSERT_SOURCE_LOCATION(NODE) \
642 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->location)
644 struct GTY (()) tree_static_assert {
645 struct tree_common common;
646 tree condition;
647 tree message;
648 location_t location;
651 struct GTY (()) tree_argument_pack_select {
652 struct tree_common common;
653 tree argument_pack;
654 int index;
657 /* The different kinds of traits that we encounter. */
659 typedef enum cp_trait_kind
661 CPTK_BASES,
662 CPTK_DIRECT_BASES,
663 CPTK_HAS_NOTHROW_ASSIGN,
664 CPTK_HAS_NOTHROW_CONSTRUCTOR,
665 CPTK_HAS_NOTHROW_COPY,
666 CPTK_HAS_TRIVIAL_ASSIGN,
667 CPTK_HAS_TRIVIAL_CONSTRUCTOR,
668 CPTK_HAS_TRIVIAL_COPY,
669 CPTK_HAS_TRIVIAL_DESTRUCTOR,
670 CPTK_HAS_VIRTUAL_DESTRUCTOR,
671 CPTK_IS_ABSTRACT,
672 CPTK_IS_BASE_OF,
673 CPTK_IS_CLASS,
674 CPTK_IS_CONVERTIBLE_TO,
675 CPTK_IS_EMPTY,
676 CPTK_IS_ENUM,
677 CPTK_IS_FINAL,
678 CPTK_IS_LITERAL_TYPE,
679 CPTK_IS_POD,
680 CPTK_IS_POLYMORPHIC,
681 CPTK_IS_SAME_AS,
682 CPTK_IS_STD_LAYOUT,
683 CPTK_IS_TRIVIAL,
684 CPTK_IS_TRIVIALLY_ASSIGNABLE,
685 CPTK_IS_TRIVIALLY_CONSTRUCTIBLE,
686 CPTK_IS_TRIVIALLY_COPYABLE,
687 CPTK_IS_UNION,
688 CPTK_UNDERLYING_TYPE
689 } cp_trait_kind;
691 /* The types that we are processing. */
692 #define TRAIT_EXPR_TYPE1(NODE) \
693 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type1)
695 #define TRAIT_EXPR_TYPE2(NODE) \
696 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type2)
698 /* The specific trait that we are processing. */
699 #define TRAIT_EXPR_KIND(NODE) \
700 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->kind)
702 struct GTY (()) tree_trait_expr {
703 struct tree_common common;
704 tree type1;
705 tree type2;
706 enum cp_trait_kind kind;
709 /* Based off of TYPE_ANONYMOUS_P. */
710 #define LAMBDA_TYPE_P(NODE) \
711 (CLASS_TYPE_P (NODE) && CLASSTYPE_LAMBDA_EXPR (NODE))
713 /* Test if FUNCTION_DECL is a lambda function. */
714 #define LAMBDA_FUNCTION_P(FNDECL) \
715 (DECL_OVERLOADED_OPERATOR_P (FNDECL) == CALL_EXPR \
716 && LAMBDA_TYPE_P (CP_DECL_CONTEXT (FNDECL)))
718 enum cp_lambda_default_capture_mode_type {
719 CPLD_NONE,
720 CPLD_COPY,
721 CPLD_REFERENCE
724 /* The method of default capture, if any. */
725 #define LAMBDA_EXPR_DEFAULT_CAPTURE_MODE(NODE) \
726 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->default_capture_mode)
728 /* The capture-list, including `this'. Each capture is stored as a FIELD_DECL
729 * so that the name, type, and field are all together, whether or not it has
730 * been added to the lambda's class type.
731 TREE_LIST:
732 TREE_PURPOSE: The FIELD_DECL for this capture.
733 TREE_VALUE: The initializer. This is part of a GNU extension. */
734 #define LAMBDA_EXPR_CAPTURE_LIST(NODE) \
735 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->capture_list)
737 /* During parsing of the lambda-introducer, the node in the capture-list
738 that holds the 'this' capture. During parsing of the body, the
739 capture proxy for that node. */
740 #define LAMBDA_EXPR_THIS_CAPTURE(NODE) \
741 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->this_capture)
743 /* Predicate tracking whether `this' is in the effective capture set. */
744 #define LAMBDA_EXPR_CAPTURES_THIS_P(NODE) \
745 LAMBDA_EXPR_THIS_CAPTURE(NODE)
747 /* Predicate tracking whether the lambda was declared 'mutable'. */
748 #define LAMBDA_EXPR_MUTABLE_P(NODE) \
749 TREE_LANG_FLAG_1 (LAMBDA_EXPR_CHECK (NODE))
751 /* The return type in the expression.
752 * NULL_TREE indicates that none was specified. */
753 #define LAMBDA_EXPR_RETURN_TYPE(NODE) \
754 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->return_type)
756 /* The source location of the lambda. */
757 #define LAMBDA_EXPR_LOCATION(NODE) \
758 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->locus)
760 /* The mangling scope for the lambda: FUNCTION_DECL, PARM_DECL, VAR_DECL,
761 FIELD_DECL or NULL_TREE. If this is NULL_TREE, we have no linkage. */
762 #define LAMBDA_EXPR_EXTRA_SCOPE(NODE) \
763 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->extra_scope)
765 /* If EXTRA_SCOPE, this is the number of the lambda within that scope. */
766 #define LAMBDA_EXPR_DISCRIMINATOR(NODE) \
767 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->discriminator)
769 /* During parsing of the lambda, a vector of capture proxies which need
770 to be pushed once we're done processing a nested lambda. */
771 #define LAMBDA_EXPR_PENDING_PROXIES(NODE) \
772 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->pending_proxies)
774 /* The closure type of the lambda. Note that the TREE_TYPE of a
775 LAMBDA_EXPR is always NULL_TREE, because we need to instantiate the
776 LAMBDA_EXPR in order to instantiate the type. */
777 #define LAMBDA_EXPR_CLOSURE(NODE) \
778 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->closure)
780 struct GTY (()) tree_lambda_expr
782 struct tree_typed typed;
783 tree capture_list;
784 tree this_capture;
785 tree return_type;
786 tree extra_scope;
787 tree closure;
788 vec<tree, va_gc> *pending_proxies;
789 location_t locus;
790 enum cp_lambda_default_capture_mode_type default_capture_mode;
791 int discriminator;
794 /* A (typedef,context,usage location) triplet.
795 It represents a typedef used through a
796 context at a given source location.
797 e.g.
798 struct foo {
799 typedef int myint;
802 struct bar {
803 foo::myint v; // #1<-- this location.
806 In bar, the triplet will be (myint, foo, #1).
808 struct GTY(()) qualified_typedef_usage_s {
809 tree typedef_decl;
810 tree context;
811 location_t locus;
813 typedef struct qualified_typedef_usage_s qualified_typedef_usage_t;
815 /* Non-zero if this template specialization has access violations that
816 should be rechecked when the function is instantiated outside argument
817 deduction. */
818 #define TINFO_HAS_ACCESS_ERRORS(NODE) \
819 (TREE_LANG_FLAG_0 (TEMPLATE_INFO_CHECK (NODE)))
820 #define FNDECL_HAS_ACCESS_ERRORS(NODE) \
821 (TINFO_HAS_ACCESS_ERRORS (DECL_TEMPLATE_INFO (NODE)))
823 /* Non-zero if this variable template specialization was specified using a
824 template-id, so it's a partial or full specialization and not a definition
825 of the member template of a particular class specialization. */
826 #define TINFO_USED_TEMPLATE_ID(NODE) \
827 (TREE_LANG_FLAG_1 (TEMPLATE_INFO_CHECK (NODE)))
829 struct GTY(()) tree_template_info {
830 struct tree_common common;
831 vec<qualified_typedef_usage_t, va_gc> *typedefs_needing_access_checking;
834 // Constraint information for a C++ declaration. Constraint information is
835 // comprised of:
837 // - a constraint expression introduced by the template header
838 // - a constraint expression introduced by a function declarator
839 // - the associated constraints, which are the conjunction of those,
840 // and used for declaration matching
841 // - the cached normalized associated constraints which are used
842 // to support satisfaction and subsumption.
843 // - assumptions which is the result of decomposing the normalized
844 // constraints.
846 // The template and declarator requirements are kept to support pretty
847 // printing constrained declarations.
848 struct GTY(()) tree_constraint_info {
849 struct tree_base base;
850 tree template_reqs;
851 tree declarator_reqs;
852 tree associated_constr;
853 tree normalized_constr;
854 tree assumptions;
857 // Returns true iff T is non-null and represents constraint info.
858 inline tree_constraint_info *
859 check_constraint_info (tree t)
861 if (t && TREE_CODE (t) == CONSTRAINT_INFO)
862 return (tree_constraint_info *)t;
863 return NULL;
866 // Access the expression describing the template constraints. This may be
867 // null if no constraints were introduced in the template parameter list,
868 // a requirements clause after the template parameter list, or constraints
869 // through a constrained-type-specifier.
870 #define CI_TEMPLATE_REQS(NODE) \
871 check_constraint_info (check_nonnull(NODE))->template_reqs
873 // Access the expression describing the trailing constraints. This is non-null
874 // for any implicit instantiation of a constrained declaration. For a
875 // templated declaration it is non-null only when a trailing requires-clause
876 // was specified.
877 #define CI_DECLARATOR_REQS(NODE) \
878 check_constraint_info (check_nonnull(NODE))->declarator_reqs
880 // The computed associated constraint expression for a declaration.
881 #define CI_ASSOCIATED_CONSTRAINTS(NODE) \
882 check_constraint_info (check_nonnull(NODE))->associated_constr
884 // The normalized associated constraints.
885 #define CI_NORMALIZED_CONSTRAINTS(NODE) \
886 check_constraint_info (check_nonnull(NODE))->normalized_constr
888 // Get the set of assumptions associated with the constraint info node.
889 #define CI_ASSUMPTIONS(NODE) \
890 check_constraint_info (check_nonnull(NODE))->assumptions
892 // Access the logical constraints on the template parameters introduced
893 // at a given template parameter list level indicated by NODE.
894 #define TEMPLATE_PARMS_CONSTRAINTS(NODE) \
895 TREE_TYPE (TREE_LIST_CHECK (NODE))
897 // Access the logical constraints on the template parameter declaration
898 // indicated by NODE.
899 #define TEMPLATE_PARM_CONSTRAINTS(NODE) \
900 TREE_TYPE (TREE_LIST_CHECK (NODE))
902 /* Non-zero if the noexcept is present in a compound requirement. */
903 #define COMPOUND_REQ_NOEXCEPT_P(NODE) \
904 TREE_LANG_FLAG_0 (TREE_CHECK (NODE, COMPOUND_REQ))
906 /* The expression evaluated by the predicate constraint. */
907 #define PRED_CONSTR_EXPR(NODE) \
908 TREE_OPERAND (TREE_CHECK (NODE, PRED_CONSTR), 0)
910 /* The expression validated by the predicate constraint. */
911 #define EXPR_CONSTR_EXPR(NODE) \
912 TREE_OPERAND (TREE_CHECK (NODE, EXPR_CONSTR), 0)
914 /* The type validated by the predicate constraint. */
915 #define TYPE_CONSTR_TYPE(NODE) \
916 TREE_OPERAND (TREE_CHECK (NODE, TYPE_CONSTR), 0)
918 /* In an implicit conversion constraint, the source expression. */
919 #define ICONV_CONSTR_EXPR(NODE) \
920 TREE_OPERAND (TREE_CHECK (NODE, ICONV_CONSTR), 0)
922 /* In an implicit conversion constraint, the target type. */
923 #define ICONV_CONSTR_TYPE(NODE) \
924 TREE_OPERAND (TREE_CHECK (NODE, ICONV_CONSTR), 1)
926 /* In an argument deduction constraint, the source expression. */
927 #define DEDUCT_CONSTR_EXPR(NODE) \
928 TREE_OPERAND (TREE_CHECK (NODE, DEDUCT_CONSTR), 0)
930 /* In an argument deduction constraint, the target type pattern. */
931 #define DEDUCT_CONSTR_PATTERN(NODE) \
932 TREE_OPERAND (TREE_CHECK (NODE, DEDUCT_CONSTR), 1)
934 /* In an argument deduction constraint, the list of placeholder nodes. */
935 #define DEDUCT_CONSTR_PLACEHOLDER(NODE) \
936 TREE_OPERAND (TREE_CHECK (NODE, DEDUCT_CONSTR), 2)
938 /* The expression of an exception constraint. */
939 #define EXCEPT_CONSTR_EXPR(NODE) \
940 TREE_OPERAND (TREE_CHECK (NODE, EXCEPT_CONSTR), 0)
942 /* In a parameterized constraint, the local parameters. */
943 #define PARM_CONSTR_PARMS(NODE) \
944 TREE_OPERAND (TREE_CHECK (NODE, PARM_CONSTR), 0)
946 /* In a parameterized constraint, the operand. */
947 #define PARM_CONSTR_OPERAND(NODE) \
948 TREE_OPERAND (TREE_CHECK (NODE, PARM_CONSTR), 1)
950 #define CONSTRAINT_VAR_P(NODE) \
951 DECL_LANG_FLAG_2 (TREE_CHECK (NODE, PARM_DECL))
953 enum cp_tree_node_structure_enum {
954 TS_CP_GENERIC,
955 TS_CP_IDENTIFIER,
956 TS_CP_TPI,
957 TS_CP_PTRMEM,
958 TS_CP_BINDING,
959 TS_CP_OVERLOAD,
960 TS_CP_BASELINK,
961 TS_CP_TEMPLATE_DECL,
962 TS_CP_WRAPPER,
963 TS_CP_DEFAULT_ARG,
964 TS_CP_DEFERRED_NOEXCEPT,
965 TS_CP_STATIC_ASSERT,
966 TS_CP_ARGUMENT_PACK_SELECT,
967 TS_CP_TRAIT_EXPR,
968 TS_CP_LAMBDA_EXPR,
969 TS_CP_TEMPLATE_INFO,
970 TS_CP_CONSTRAINT_INFO,
971 TS_CP_USERDEF_LITERAL,
972 LAST_TS_CP_ENUM
975 /* The resulting tree type. */
976 union GTY((desc ("cp_tree_node_structure (&%h)"),
977 chain_next ("(union lang_tree_node *) c_tree_chain_next (&%h.generic)"))) lang_tree_node {
978 union tree_node GTY ((tag ("TS_CP_GENERIC"),
979 desc ("tree_node_structure (&%h)"))) generic;
980 struct template_parm_index_s GTY ((tag ("TS_CP_TPI"))) tpi;
981 struct ptrmem_cst GTY ((tag ("TS_CP_PTRMEM"))) ptrmem;
982 struct tree_overload GTY ((tag ("TS_CP_OVERLOAD"))) overload;
983 struct tree_baselink GTY ((tag ("TS_CP_BASELINK"))) baselink;
984 struct tree_template_decl GTY ((tag ("TS_CP_TEMPLATE_DECL"))) template_decl;
985 struct tree_default_arg GTY ((tag ("TS_CP_DEFAULT_ARG"))) default_arg;
986 struct tree_deferred_noexcept GTY ((tag ("TS_CP_DEFERRED_NOEXCEPT"))) deferred_noexcept;
987 struct lang_identifier GTY ((tag ("TS_CP_IDENTIFIER"))) identifier;
988 struct tree_static_assert GTY ((tag ("TS_CP_STATIC_ASSERT")))
989 static_assertion;
990 struct tree_argument_pack_select GTY ((tag ("TS_CP_ARGUMENT_PACK_SELECT")))
991 argument_pack_select;
992 struct tree_trait_expr GTY ((tag ("TS_CP_TRAIT_EXPR")))
993 trait_expression;
994 struct tree_lambda_expr GTY ((tag ("TS_CP_LAMBDA_EXPR")))
995 lambda_expression;
996 struct tree_template_info GTY ((tag ("TS_CP_TEMPLATE_INFO")))
997 template_info;
998 struct tree_constraint_info GTY ((tag ("TS_CP_CONSTRAINT_INFO")))
999 constraint_info;
1000 struct tree_userdef_literal GTY ((tag ("TS_CP_USERDEF_LITERAL")))
1001 userdef_literal;
1005 enum cp_tree_index
1007 CPTI_JAVA_BYTE_TYPE,
1008 CPTI_JAVA_SHORT_TYPE,
1009 CPTI_JAVA_INT_TYPE,
1010 CPTI_JAVA_LONG_TYPE,
1011 CPTI_JAVA_FLOAT_TYPE,
1012 CPTI_JAVA_DOUBLE_TYPE,
1013 CPTI_JAVA_CHAR_TYPE,
1014 CPTI_JAVA_BOOLEAN_TYPE,
1016 CPTI_WCHAR_DECL,
1017 CPTI_VTABLE_ENTRY_TYPE,
1018 CPTI_DELTA_TYPE,
1019 CPTI_VTABLE_INDEX_TYPE,
1020 CPTI_CLEANUP_TYPE,
1021 CPTI_VTT_PARM_TYPE,
1023 CPTI_CLASS_TYPE,
1024 CPTI_UNKNOWN_TYPE,
1025 CPTI_INIT_LIST_TYPE,
1026 CPTI_VTBL_TYPE,
1027 CPTI_VTBL_PTR_TYPE,
1028 CPTI_STD,
1029 CPTI_ABI,
1030 CPTI_CONST_TYPE_INFO_TYPE,
1031 CPTI_TYPE_INFO_PTR_TYPE,
1032 CPTI_ABORT_FNDECL,
1033 CPTI_AGGR_TAG,
1035 CPTI_CTOR_IDENTIFIER,
1036 CPTI_COMPLETE_CTOR_IDENTIFIER,
1037 CPTI_BASE_CTOR_IDENTIFIER,
1038 CPTI_DTOR_IDENTIFIER,
1039 CPTI_COMPLETE_DTOR_IDENTIFIER,
1040 CPTI_BASE_DTOR_IDENTIFIER,
1041 CPTI_DELETING_DTOR_IDENTIFIER,
1042 CPTI_DELTA_IDENTIFIER,
1043 CPTI_IN_CHARGE_IDENTIFIER,
1044 CPTI_VTT_PARM_IDENTIFIER,
1045 CPTI_NELTS_IDENTIFIER,
1046 CPTI_THIS_IDENTIFIER,
1047 CPTI_PFN_IDENTIFIER,
1048 CPTI_VPTR_IDENTIFIER,
1049 CPTI_STD_IDENTIFIER,
1051 CPTI_LANG_NAME_C,
1052 CPTI_LANG_NAME_CPLUSPLUS,
1053 CPTI_LANG_NAME_JAVA,
1055 CPTI_EMPTY_EXCEPT_SPEC,
1056 CPTI_NOEXCEPT_TRUE_SPEC,
1057 CPTI_NOEXCEPT_FALSE_SPEC,
1058 CPTI_JCLASS,
1059 CPTI_TERMINATE,
1060 CPTI_CALL_UNEXPECTED,
1061 CPTI_ATEXIT_FN_PTR_TYPE,
1062 CPTI_ATEXIT,
1063 CPTI_DSO_HANDLE,
1064 CPTI_DCAST,
1066 CPTI_KEYED_CLASSES,
1068 CPTI_NULLPTR,
1069 CPTI_NULLPTR_TYPE,
1071 CPTI_MAX
1074 extern GTY(()) tree cp_global_trees[CPTI_MAX];
1076 #define java_byte_type_node cp_global_trees[CPTI_JAVA_BYTE_TYPE]
1077 #define java_short_type_node cp_global_trees[CPTI_JAVA_SHORT_TYPE]
1078 #define java_int_type_node cp_global_trees[CPTI_JAVA_INT_TYPE]
1079 #define java_long_type_node cp_global_trees[CPTI_JAVA_LONG_TYPE]
1080 #define java_float_type_node cp_global_trees[CPTI_JAVA_FLOAT_TYPE]
1081 #define java_double_type_node cp_global_trees[CPTI_JAVA_DOUBLE_TYPE]
1082 #define java_char_type_node cp_global_trees[CPTI_JAVA_CHAR_TYPE]
1083 #define java_boolean_type_node cp_global_trees[CPTI_JAVA_BOOLEAN_TYPE]
1085 #define wchar_decl_node cp_global_trees[CPTI_WCHAR_DECL]
1086 #define vtable_entry_type cp_global_trees[CPTI_VTABLE_ENTRY_TYPE]
1087 /* The type used to represent an offset by which to adjust the `this'
1088 pointer in pointer-to-member types. */
1089 #define delta_type_node cp_global_trees[CPTI_DELTA_TYPE]
1090 /* The type used to represent an index into the vtable. */
1091 #define vtable_index_type cp_global_trees[CPTI_VTABLE_INDEX_TYPE]
1093 #define class_type_node cp_global_trees[CPTI_CLASS_TYPE]
1094 #define unknown_type_node cp_global_trees[CPTI_UNKNOWN_TYPE]
1095 #define init_list_type_node cp_global_trees[CPTI_INIT_LIST_TYPE]
1096 #define vtbl_type_node cp_global_trees[CPTI_VTBL_TYPE]
1097 #define vtbl_ptr_type_node cp_global_trees[CPTI_VTBL_PTR_TYPE]
1098 #define std_node cp_global_trees[CPTI_STD]
1099 #define abi_node cp_global_trees[CPTI_ABI]
1100 #define const_type_info_type_node cp_global_trees[CPTI_CONST_TYPE_INFO_TYPE]
1101 #define type_info_ptr_type cp_global_trees[CPTI_TYPE_INFO_PTR_TYPE]
1102 #define abort_fndecl cp_global_trees[CPTI_ABORT_FNDECL]
1103 #define current_aggr cp_global_trees[CPTI_AGGR_TAG]
1104 #define nullptr_node cp_global_trees[CPTI_NULLPTR]
1105 #define nullptr_type_node cp_global_trees[CPTI_NULLPTR_TYPE]
1107 /* We cache these tree nodes so as to call get_identifier less
1108 frequently. */
1110 /* The name of a constructor that takes an in-charge parameter to
1111 decide whether or not to construct virtual base classes. */
1112 #define ctor_identifier cp_global_trees[CPTI_CTOR_IDENTIFIER]
1113 /* The name of a constructor that constructs virtual base classes. */
1114 #define complete_ctor_identifier cp_global_trees[CPTI_COMPLETE_CTOR_IDENTIFIER]
1115 /* The name of a constructor that does not construct virtual base classes. */
1116 #define base_ctor_identifier cp_global_trees[CPTI_BASE_CTOR_IDENTIFIER]
1117 /* The name of a destructor that takes an in-charge parameter to
1118 decide whether or not to destroy virtual base classes and whether
1119 or not to delete the object. */
1120 #define dtor_identifier cp_global_trees[CPTI_DTOR_IDENTIFIER]
1121 /* The name of a destructor that destroys virtual base classes. */
1122 #define complete_dtor_identifier cp_global_trees[CPTI_COMPLETE_DTOR_IDENTIFIER]
1123 /* The name of a destructor that does not destroy virtual base
1124 classes. */
1125 #define base_dtor_identifier cp_global_trees[CPTI_BASE_DTOR_IDENTIFIER]
1126 /* The name of a destructor that destroys virtual base classes, and
1127 then deletes the entire object. */
1128 #define deleting_dtor_identifier cp_global_trees[CPTI_DELETING_DTOR_IDENTIFIER]
1129 #define delta_identifier cp_global_trees[CPTI_DELTA_IDENTIFIER]
1130 #define in_charge_identifier cp_global_trees[CPTI_IN_CHARGE_IDENTIFIER]
1131 /* The name of the parameter that contains a pointer to the VTT to use
1132 for this subobject constructor or destructor. */
1133 #define vtt_parm_identifier cp_global_trees[CPTI_VTT_PARM_IDENTIFIER]
1134 #define nelts_identifier cp_global_trees[CPTI_NELTS_IDENTIFIER]
1135 #define this_identifier cp_global_trees[CPTI_THIS_IDENTIFIER]
1136 #define pfn_identifier cp_global_trees[CPTI_PFN_IDENTIFIER]
1137 #define vptr_identifier cp_global_trees[CPTI_VPTR_IDENTIFIER]
1138 /* The name of the std namespace. */
1139 #define std_identifier cp_global_trees[CPTI_STD_IDENTIFIER]
1140 #define lang_name_c cp_global_trees[CPTI_LANG_NAME_C]
1141 #define lang_name_cplusplus cp_global_trees[CPTI_LANG_NAME_CPLUSPLUS]
1142 #define lang_name_java cp_global_trees[CPTI_LANG_NAME_JAVA]
1144 /* Exception specifier used for throw(). */
1145 #define empty_except_spec cp_global_trees[CPTI_EMPTY_EXCEPT_SPEC]
1146 #define noexcept_true_spec cp_global_trees[CPTI_NOEXCEPT_TRUE_SPEC]
1147 #define noexcept_false_spec cp_global_trees[CPTI_NOEXCEPT_FALSE_SPEC]
1149 /* If non-NULL, a POINTER_TYPE equivalent to (java::lang::Class*). */
1150 #define jclass_node cp_global_trees[CPTI_JCLASS]
1152 /* The declaration for `std::terminate'. */
1153 #define terminate_node cp_global_trees[CPTI_TERMINATE]
1155 /* The declaration for "__cxa_call_unexpected". */
1156 #define call_unexpected_node cp_global_trees[CPTI_CALL_UNEXPECTED]
1158 /* The type of the function-pointer argument to "__cxa_atexit" (or
1159 "std::atexit", if "__cxa_atexit" is not being used). */
1160 #define atexit_fn_ptr_type_node cp_global_trees[CPTI_ATEXIT_FN_PTR_TYPE]
1162 /* A pointer to `std::atexit'. */
1163 #define atexit_node cp_global_trees[CPTI_ATEXIT]
1165 /* A pointer to `__dso_handle'. */
1166 #define dso_handle_node cp_global_trees[CPTI_DSO_HANDLE]
1168 /* The declaration of the dynamic_cast runtime. */
1169 #define dynamic_cast_node cp_global_trees[CPTI_DCAST]
1171 /* The type of a destructor. */
1172 #define cleanup_type cp_global_trees[CPTI_CLEANUP_TYPE]
1174 /* The type of the vtt parameter passed to subobject constructors and
1175 destructors. */
1176 #define vtt_parm_type cp_global_trees[CPTI_VTT_PARM_TYPE]
1178 /* A TREE_LIST of the dynamic classes whose vtables may have to be
1179 emitted in this translation unit. */
1181 #define keyed_classes cp_global_trees[CPTI_KEYED_CLASSES]
1183 /* Node to indicate default access. This must be distinct from the
1184 access nodes in tree.h. */
1186 #define access_default_node null_node
1188 /* Global state. */
1190 struct GTY(()) saved_scope {
1191 vec<cxx_saved_binding, va_gc> *old_bindings;
1192 tree old_namespace;
1193 vec<tree, va_gc> *decl_ns_list;
1194 tree class_name;
1195 tree class_type;
1196 tree access_specifier;
1197 tree function_decl;
1198 vec<tree, va_gc> *lang_base;
1199 tree lang_name;
1200 tree template_parms;
1201 cp_binding_level *x_previous_class_level;
1202 tree x_saved_tree;
1204 /* Only used for uses of this in trailing return type. */
1205 tree x_current_class_ptr;
1206 tree x_current_class_ref;
1208 int x_processing_template_decl;
1209 int x_processing_specialization;
1210 BOOL_BITFIELD x_processing_explicit_instantiation : 1;
1211 BOOL_BITFIELD need_pop_function_context : 1;
1213 int unevaluated_operand;
1214 int inhibit_evaluation_warnings;
1215 int noexcept_operand;
1216 /* If non-zero, implicit "omp declare target" attribute is added into the
1217 attribute lists. */
1218 int omp_declare_target_attribute;
1220 struct stmt_tree_s x_stmt_tree;
1222 cp_binding_level *class_bindings;
1223 cp_binding_level *bindings;
1225 hash_map<tree, tree> *GTY((skip)) x_local_specializations;
1227 struct saved_scope *prev;
1230 extern GTY(()) struct saved_scope *scope_chain;
1232 /* The current open namespace. */
1234 #define current_namespace scope_chain->old_namespace
1236 /* The stack for namespaces of current declarations. */
1238 #define decl_namespace_list scope_chain->decl_ns_list
1240 /* IDENTIFIER_NODE: name of current class */
1242 #define current_class_name scope_chain->class_name
1244 /* _TYPE: the type of the current class */
1246 #define current_class_type scope_chain->class_type
1248 /* When parsing a class definition, the access specifier most recently
1249 given by the user, or, if no access specifier was given, the
1250 default value appropriate for the kind of class (i.e., struct,
1251 class, or union). */
1253 #define current_access_specifier scope_chain->access_specifier
1255 /* Pointer to the top of the language name stack. */
1257 #define current_lang_base scope_chain->lang_base
1258 #define current_lang_name scope_chain->lang_name
1260 /* When parsing a template declaration, a TREE_LIST represents the
1261 active template parameters. Each node in the list represents one
1262 level of template parameters. The innermost level is first in the
1263 list. The depth of each level is stored as an INTEGER_CST in the
1264 TREE_PURPOSE of each node. The parameters for that level are
1265 stored in the TREE_VALUE. */
1267 #define current_template_parms scope_chain->template_parms
1269 #define processing_template_decl scope_chain->x_processing_template_decl
1270 #define processing_specialization scope_chain->x_processing_specialization
1271 #define processing_explicit_instantiation scope_chain->x_processing_explicit_instantiation
1273 /* RAII sentinel to handle clearing processing_template_decl and restoring
1274 it when done. */
1276 struct processing_template_decl_sentinel
1278 int saved;
1279 processing_template_decl_sentinel (bool reset = true)
1280 : saved (processing_template_decl)
1282 if (reset)
1283 processing_template_decl = 0;
1285 ~processing_template_decl_sentinel()
1287 processing_template_decl = saved;
1291 /* RAII sentinel to disable certain warnings during template substitution
1292 and elsewhere. */
1294 struct warning_sentinel
1296 int &flag;
1297 int val;
1298 warning_sentinel(int& flag, bool suppress=true)
1299 : flag(flag), val(flag) { if (suppress) flag = 0; }
1300 ~warning_sentinel() { flag = val; }
1303 /* The cached class binding level, from the most recently exited
1304 class, or NULL if none. */
1306 #define previous_class_level scope_chain->x_previous_class_level
1308 /* A map from local variable declarations in the body of the template
1309 presently being instantiated to the corresponding instantiated
1310 local variables. */
1312 #define local_specializations scope_chain->x_local_specializations
1314 /* Nonzero if we are parsing the operand of a noexcept operator. */
1316 #define cp_noexcept_operand scope_chain->noexcept_operand
1318 /* A list of private types mentioned, for deferred access checking. */
1320 struct GTY((for_user)) cxx_int_tree_map {
1321 unsigned int uid;
1322 tree to;
1325 struct cxx_int_tree_map_hasher : ggc_hasher<cxx_int_tree_map *>
1327 static hashval_t hash (cxx_int_tree_map *);
1328 static bool equal (cxx_int_tree_map *, cxx_int_tree_map *);
1331 struct named_label_entry;
1333 struct named_label_hasher : ggc_hasher<named_label_entry *>
1335 static hashval_t hash (named_label_entry *);
1336 static bool equal (named_label_entry *, named_label_entry *);
1339 /* Global state pertinent to the current function. */
1341 struct GTY(()) language_function {
1342 struct c_language_function base;
1344 tree x_cdtor_label;
1345 tree x_current_class_ptr;
1346 tree x_current_class_ref;
1347 tree x_eh_spec_block;
1348 tree x_in_charge_parm;
1349 tree x_vtt_parm;
1350 tree x_return_value;
1351 tree x_auto_return_pattern;
1353 BOOL_BITFIELD returns_value : 1;
1354 BOOL_BITFIELD returns_null : 1;
1355 BOOL_BITFIELD returns_abnormally : 1;
1356 BOOL_BITFIELD infinite_loop: 1;
1357 BOOL_BITFIELD x_in_function_try_handler : 1;
1358 BOOL_BITFIELD x_in_base_initializer : 1;
1360 /* True if this function can throw an exception. */
1361 BOOL_BITFIELD can_throw : 1;
1363 BOOL_BITFIELD invalid_constexpr : 1;
1365 hash_table<named_label_hasher> *x_named_labels;
1366 cp_binding_level *bindings;
1367 vec<tree, va_gc> *x_local_names;
1368 /* Tracking possibly infinite loops. This is a vec<tree> only because
1369 vec<bool> doesn't work with gtype. */
1370 vec<tree, va_gc> *infinite_loops;
1371 hash_table<cxx_int_tree_map_hasher> *extern_decl_map;
1374 /* The current C++-specific per-function global variables. */
1376 #define cp_function_chain (cfun->language)
1378 /* In a constructor destructor, the point at which all derived class
1379 destroying/construction has been done. I.e., just before a
1380 constructor returns, or before any base class destroying will be done
1381 in a destructor. */
1383 #define cdtor_label cp_function_chain->x_cdtor_label
1385 /* When we're processing a member function, current_class_ptr is the
1386 PARM_DECL for the `this' pointer. The current_class_ref is an
1387 expression for `*this'. */
1389 #define current_class_ptr \
1390 (*(cfun && cp_function_chain \
1391 ? &cp_function_chain->x_current_class_ptr \
1392 : &scope_chain->x_current_class_ptr))
1393 #define current_class_ref \
1394 (*(cfun && cp_function_chain \
1395 ? &cp_function_chain->x_current_class_ref \
1396 : &scope_chain->x_current_class_ref))
1398 /* The EH_SPEC_BLOCK for the exception-specifiers for the current
1399 function, if any. */
1401 #define current_eh_spec_block cp_function_chain->x_eh_spec_block
1403 /* The `__in_chrg' parameter for the current function. Only used for
1404 constructors and destructors. */
1406 #define current_in_charge_parm cp_function_chain->x_in_charge_parm
1408 /* The `__vtt_parm' parameter for the current function. Only used for
1409 constructors and destructors. */
1411 #define current_vtt_parm cp_function_chain->x_vtt_parm
1413 /* Set to 0 at beginning of a function definition, set to 1 if
1414 a return statement that specifies a return value is seen. */
1416 #define current_function_returns_value cp_function_chain->returns_value
1418 /* Set to 0 at beginning of a function definition, set to 1 if
1419 a return statement with no argument is seen. */
1421 #define current_function_returns_null cp_function_chain->returns_null
1423 /* Set to 0 at beginning of a function definition, set to 1 if
1424 a call to a noreturn function is seen. */
1426 #define current_function_returns_abnormally \
1427 cp_function_chain->returns_abnormally
1429 /* Set to 0 at beginning of a function definition, set to 1 if we see an
1430 obvious infinite loop. This can have false positives and false
1431 negatives, so it should only be used as a heuristic. */
1433 #define current_function_infinite_loop cp_function_chain->infinite_loop
1435 /* Nonzero if we are processing a base initializer. Zero elsewhere. */
1436 #define in_base_initializer cp_function_chain->x_in_base_initializer
1438 #define in_function_try_handler cp_function_chain->x_in_function_try_handler
1440 /* Expression always returned from function, or error_mark_node
1441 otherwise, for use by the automatic named return value optimization. */
1443 #define current_function_return_value \
1444 (cp_function_chain->x_return_value)
1446 /* A type involving 'auto' to be used for return type deduction. */
1448 #define current_function_auto_return_pattern \
1449 (cp_function_chain->x_auto_return_pattern)
1451 /* True if NAME is the IDENTIFIER_NODE for an overloaded "operator
1452 new" or "operator delete". */
1453 #define NEW_DELETE_OPNAME_P(NAME) \
1454 ((NAME) == ansi_opname (NEW_EXPR) \
1455 || (NAME) == ansi_opname (VEC_NEW_EXPR) \
1456 || (NAME) == ansi_opname (DELETE_EXPR) \
1457 || (NAME) == ansi_opname (VEC_DELETE_EXPR))
1459 #define ansi_opname(CODE) \
1460 (operator_name_info[(int) (CODE)].identifier)
1461 #define ansi_assopname(CODE) \
1462 (assignment_operator_name_info[(int) (CODE)].identifier)
1464 /* TRUE if a tree code represents a statement. */
1465 extern bool statement_code_p[MAX_TREE_CODES];
1467 #define STATEMENT_CODE_P(CODE) statement_code_p[(int) (CODE)]
1469 enum languages { lang_c, lang_cplusplus, lang_java };
1471 /* Macros to make error reporting functions' lives easier. */
1472 #define TYPE_LINKAGE_IDENTIFIER(NODE) \
1473 (TYPE_IDENTIFIER (TYPE_MAIN_VARIANT (NODE)))
1474 #define TYPE_NAME_STRING(NODE) (IDENTIFIER_POINTER (TYPE_IDENTIFIER (NODE)))
1475 #define TYPE_NAME_LENGTH(NODE) (IDENTIFIER_LENGTH (TYPE_IDENTIFIER (NODE)))
1477 /* Nonzero if NODE has no name for linkage purposes. */
1478 #define TYPE_ANONYMOUS_P(NODE) \
1479 (OVERLOAD_TYPE_P (NODE) && ANON_AGGRNAME_P (TYPE_LINKAGE_IDENTIFIER (NODE)))
1481 /* The _DECL for this _TYPE. */
1482 #define TYPE_MAIN_DECL(NODE) (TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE)))
1484 /* Nonzero if T is a type that could resolve to any kind of concrete type
1485 at instantiation time. */
1486 #define WILDCARD_TYPE_P(T) \
1487 (TREE_CODE (T) == TEMPLATE_TYPE_PARM \
1488 || TREE_CODE (T) == TYPENAME_TYPE \
1489 || TREE_CODE (T) == TYPEOF_TYPE \
1490 || TREE_CODE (T) == BOUND_TEMPLATE_TEMPLATE_PARM \
1491 || TREE_CODE (T) == DECLTYPE_TYPE)
1493 /* Nonzero if T is a class (or struct or union) type. Also nonzero
1494 for template type parameters, typename types, and instantiated
1495 template template parameters. Keep these checks in ascending code
1496 order. */
1497 #define MAYBE_CLASS_TYPE_P(T) (WILDCARD_TYPE_P (T) || CLASS_TYPE_P (T))
1499 /* Set CLASS_TYPE_P for T to VAL. T must be a class, struct, or
1500 union type. */
1501 #define SET_CLASS_TYPE_P(T, VAL) \
1502 (TYPE_LANG_FLAG_5 (T) = (VAL))
1504 /* Nonzero if T is a class type. Zero for template type parameters,
1505 typename types, and so forth. */
1506 #define CLASS_TYPE_P(T) \
1507 (RECORD_OR_UNION_CODE_P (TREE_CODE (T)) && TYPE_LANG_FLAG_5 (T))
1509 /* Nonzero if T is a class type but not an union. */
1510 #define NON_UNION_CLASS_TYPE_P(T) \
1511 (CLASS_TYPE_P (T) && TREE_CODE (T) != UNION_TYPE)
1513 /* Keep these checks in ascending code order. */
1514 #define RECORD_OR_UNION_CODE_P(T) \
1515 ((T) == RECORD_TYPE || (T) == UNION_TYPE)
1516 #define OVERLOAD_TYPE_P(T) \
1517 (CLASS_TYPE_P (T) || TREE_CODE (T) == ENUMERAL_TYPE)
1519 /* True if this a "Java" type, defined in 'extern "Java"'. */
1520 #define TYPE_FOR_JAVA(NODE) TYPE_LANG_FLAG_3 (NODE)
1522 /* True if this type is dependent. This predicate is only valid if
1523 TYPE_DEPENDENT_P_VALID is true. */
1524 #define TYPE_DEPENDENT_P(NODE) TYPE_LANG_FLAG_0 (NODE)
1526 /* True if dependent_type_p has been called for this type, with the
1527 result that TYPE_DEPENDENT_P is valid. */
1528 #define TYPE_DEPENDENT_P_VALID(NODE) TYPE_LANG_FLAG_6(NODE)
1530 /* Nonzero if this type is const-qualified. */
1531 #define CP_TYPE_CONST_P(NODE) \
1532 ((cp_type_quals (NODE) & TYPE_QUAL_CONST) != 0)
1534 /* Nonzero if this type is volatile-qualified. */
1535 #define CP_TYPE_VOLATILE_P(NODE) \
1536 ((cp_type_quals (NODE) & TYPE_QUAL_VOLATILE) != 0)
1538 /* Nonzero if this type is restrict-qualified. */
1539 #define CP_TYPE_RESTRICT_P(NODE) \
1540 ((cp_type_quals (NODE) & TYPE_QUAL_RESTRICT) != 0)
1542 /* Nonzero if this type is const-qualified, but not
1543 volatile-qualified. Other qualifiers are ignored. This macro is
1544 used to test whether or not it is OK to bind an rvalue to a
1545 reference. */
1546 #define CP_TYPE_CONST_NON_VOLATILE_P(NODE) \
1547 ((cp_type_quals (NODE) & (TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE)) \
1548 == TYPE_QUAL_CONST)
1550 #define FUNCTION_ARG_CHAIN(NODE) \
1551 TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (NODE)))
1553 /* Given a FUNCTION_DECL, returns the first TREE_LIST out of TYPE_ARG_TYPES
1554 which refers to a user-written parameter. */
1555 #define FUNCTION_FIRST_USER_PARMTYPE(NODE) \
1556 skip_artificial_parms_for ((NODE), TYPE_ARG_TYPES (TREE_TYPE (NODE)))
1558 /* Similarly, but for DECL_ARGUMENTS. */
1559 #define FUNCTION_FIRST_USER_PARM(NODE) \
1560 skip_artificial_parms_for ((NODE), DECL_ARGUMENTS (NODE))
1562 /* Nonzero iff TYPE is derived from PARENT. Ignores accessibility and
1563 ambiguity issues. */
1564 #define DERIVED_FROM_P(PARENT, TYPE) \
1565 (lookup_base ((TYPE), (PARENT), ba_any, NULL, tf_none) != NULL_TREE)
1567 /* Gives the visibility specification for a class type. */
1568 #define CLASSTYPE_VISIBILITY(TYPE) \
1569 DECL_VISIBILITY (TYPE_MAIN_DECL (TYPE))
1570 #define CLASSTYPE_VISIBILITY_SPECIFIED(TYPE) \
1571 DECL_VISIBILITY_SPECIFIED (TYPE_MAIN_DECL (TYPE))
1573 typedef struct GTY (()) tree_pair_s {
1574 tree purpose;
1575 tree value;
1576 } tree_pair_s;
1577 typedef tree_pair_s *tree_pair_p;
1579 /* This is a few header flags for 'struct lang_type'. Actually,
1580 all but the first are used only for lang_type_class; they
1581 are put in this structure to save space. */
1582 struct GTY(()) lang_type_header {
1583 BOOL_BITFIELD is_lang_type_class : 1;
1585 BOOL_BITFIELD has_type_conversion : 1;
1586 BOOL_BITFIELD has_copy_ctor : 1;
1587 BOOL_BITFIELD has_default_ctor : 1;
1588 BOOL_BITFIELD const_needs_init : 1;
1589 BOOL_BITFIELD ref_needs_init : 1;
1590 BOOL_BITFIELD has_const_copy_assign : 1;
1592 BOOL_BITFIELD spare : 1;
1595 /* This structure provides additional information above and beyond
1596 what is provide in the ordinary tree_type. In the past, we used it
1597 for the types of class types, template parameters types, typename
1598 types, and so forth. However, there can be many (tens to hundreds
1599 of thousands) of template parameter types in a compilation, and
1600 there's no need for this additional information in that case.
1601 Therefore, we now use this data structure only for class types.
1603 In the past, it was thought that there would be relatively few
1604 class types. However, in the presence of heavy use of templates,
1605 many (i.e., thousands) of classes can easily be generated.
1606 Therefore, we should endeavor to keep the size of this structure to
1607 a minimum. */
1608 struct GTY(()) lang_type_class {
1609 struct lang_type_header h;
1611 unsigned char align;
1613 unsigned has_mutable : 1;
1614 unsigned com_interface : 1;
1615 unsigned non_pod_class : 1;
1616 unsigned nearly_empty_p : 1;
1617 unsigned user_align : 1;
1618 unsigned has_copy_assign : 1;
1619 unsigned has_new : 1;
1620 unsigned has_array_new : 1;
1622 unsigned gets_delete : 2;
1623 unsigned interface_only : 1;
1624 unsigned interface_unknown : 1;
1625 unsigned contains_empty_class_p : 1;
1626 unsigned anon_aggr : 1;
1627 unsigned non_zero_init : 1;
1628 unsigned empty_p : 1;
1630 unsigned vec_new_uses_cookie : 1;
1631 unsigned declared_class : 1;
1632 unsigned diamond_shaped : 1;
1633 unsigned repeated_base : 1;
1634 unsigned being_defined : 1;
1635 unsigned java_interface : 1;
1636 unsigned debug_requested : 1;
1637 unsigned fields_readonly : 1;
1639 unsigned use_template : 2;
1640 unsigned ptrmemfunc_flag : 1;
1641 unsigned was_anonymous : 1;
1642 unsigned lazy_default_ctor : 1;
1643 unsigned lazy_copy_ctor : 1;
1644 unsigned lazy_copy_assign : 1;
1645 unsigned lazy_destructor : 1;
1647 unsigned has_const_copy_ctor : 1;
1648 unsigned has_complex_copy_ctor : 1;
1649 unsigned has_complex_copy_assign : 1;
1650 unsigned non_aggregate : 1;
1651 unsigned has_complex_dflt : 1;
1652 unsigned has_list_ctor : 1;
1653 unsigned non_std_layout : 1;
1654 unsigned is_literal : 1;
1656 unsigned lazy_move_ctor : 1;
1657 unsigned lazy_move_assign : 1;
1658 unsigned has_complex_move_ctor : 1;
1659 unsigned has_complex_move_assign : 1;
1660 unsigned has_constexpr_ctor : 1;
1662 /* When adding a flag here, consider whether or not it ought to
1663 apply to a template instance if it applies to the template. If
1664 so, make sure to copy it in instantiate_class_template! */
1666 /* There are some bits left to fill out a 32-bit word. Keep track
1667 of this by updating the size of this bitfield whenever you add or
1668 remove a flag. */
1669 unsigned dummy : 3;
1671 tree primary_base;
1672 vec<tree_pair_s, va_gc> *vcall_indices;
1673 tree vtables;
1674 tree typeinfo_var;
1675 vec<tree, va_gc> *vbases;
1676 binding_table nested_udts;
1677 tree as_base;
1678 vec<tree, va_gc> *pure_virtuals;
1679 tree friend_classes;
1680 vec<tree, va_gc> * GTY((reorder ("resort_type_method_vec"))) methods;
1681 tree key_method;
1682 tree decl_list;
1683 tree template_info;
1684 tree befriending_classes;
1685 /* In a RECORD_TYPE, information specific to Objective-C++, such
1686 as a list of adopted protocols or a pointer to a corresponding
1687 @interface. See objc/objc-act.h for details. */
1688 tree objc_info;
1689 /* sorted_fields is sorted based on a pointer, so we need to be able
1690 to resort it if pointers get rearranged. */
1691 struct sorted_fields_type * GTY ((reorder ("resort_sorted_fields")))
1692 sorted_fields;
1693 /* FIXME reuse another field? */
1694 tree lambda_expr;
1697 struct GTY(()) lang_type_ptrmem {
1698 struct lang_type_header h;
1699 tree record;
1702 struct GTY(()) lang_type {
1703 union lang_type_u
1705 struct lang_type_header GTY((skip (""))) h;
1706 struct lang_type_class GTY((tag ("1"))) c;
1707 struct lang_type_ptrmem GTY((tag ("0"))) ptrmem;
1708 } GTY((desc ("%h.h.is_lang_type_class"))) u;
1711 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1713 #define LANG_TYPE_CLASS_CHECK(NODE) __extension__ \
1714 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1715 if (! lt->u.h.is_lang_type_class) \
1716 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1717 &lt->u.c; })
1719 #define LANG_TYPE_PTRMEM_CHECK(NODE) __extension__ \
1720 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1721 if (lt->u.h.is_lang_type_class) \
1722 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1723 &lt->u.ptrmem; })
1725 #else
1727 #define LANG_TYPE_CLASS_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.c)
1728 #define LANG_TYPE_PTRMEM_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.ptrmem)
1730 #endif /* ENABLE_TREE_CHECKING */
1732 /* Nonzero for _CLASSTYPE means that operator delete is defined. */
1733 #define TYPE_GETS_DELETE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->gets_delete)
1734 #define TYPE_GETS_REG_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 1)
1736 /* Nonzero if `new NODE[x]' should cause the allocation of extra
1737 storage to indicate how many array elements are in use. */
1738 #define TYPE_VEC_NEW_USES_COOKIE(NODE) \
1739 (CLASS_TYPE_P (NODE) \
1740 && LANG_TYPE_CLASS_CHECK (NODE)->vec_new_uses_cookie)
1742 /* Nonzero means that this _CLASSTYPE node defines ways of converting
1743 itself to other types. */
1744 #define TYPE_HAS_CONVERSION(NODE) \
1745 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_type_conversion)
1747 /* Nonzero means that NODE (a class type) has a default constructor --
1748 but that it has not yet been declared. */
1749 #define CLASSTYPE_LAZY_DEFAULT_CTOR(NODE) \
1750 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_default_ctor)
1752 /* Nonzero means that NODE (a class type) has a copy constructor --
1753 but that it has not yet been declared. */
1754 #define CLASSTYPE_LAZY_COPY_CTOR(NODE) \
1755 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_ctor)
1757 /* Nonzero means that NODE (a class type) has a move constructor --
1758 but that it has not yet been declared. */
1759 #define CLASSTYPE_LAZY_MOVE_CTOR(NODE) \
1760 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_move_ctor)
1762 /* Nonzero means that NODE (a class type) has an assignment operator
1763 -- but that it has not yet been declared. */
1764 #define CLASSTYPE_LAZY_COPY_ASSIGN(NODE) \
1765 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_assign)
1767 /* Nonzero means that NODE (a class type) has an assignment operator
1768 -- but that it has not yet been declared. */
1769 #define CLASSTYPE_LAZY_MOVE_ASSIGN(NODE) \
1770 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_move_assign)
1772 /* Nonzero means that NODE (a class type) has a destructor -- but that
1773 it has not yet been declared. */
1774 #define CLASSTYPE_LAZY_DESTRUCTOR(NODE) \
1775 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_destructor)
1777 /* Nonzero means that NODE (a class type) is final */
1778 #define CLASSTYPE_FINAL(NODE) \
1779 TYPE_FINAL_P (NODE)
1782 /* Nonzero means that this _CLASSTYPE node overloads operator=(X&). */
1783 #define TYPE_HAS_COPY_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_copy_assign)
1785 /* True iff the class type NODE has an "operator =" whose parameter
1786 has a parameter of type "const X&". */
1787 #define TYPE_HAS_CONST_COPY_ASSIGN(NODE) \
1788 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_const_copy_assign)
1790 /* Nonzero means that this _CLASSTYPE node has an X(X&) constructor. */
1791 #define TYPE_HAS_COPY_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->h.has_copy_ctor)
1792 #define TYPE_HAS_CONST_COPY_CTOR(NODE) \
1793 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_copy_ctor)
1795 /* Nonzero if this class has an X(initializer_list<T>) constructor. */
1796 #define TYPE_HAS_LIST_CTOR(NODE) \
1797 (LANG_TYPE_CLASS_CHECK (NODE)->has_list_ctor)
1799 /* Nonzero if this class has a constexpr constructor other than a copy/move
1800 constructor. Note that a class can have constexpr constructors for
1801 static initialization even if it isn't a literal class. */
1802 #define TYPE_HAS_CONSTEXPR_CTOR(NODE) \
1803 (LANG_TYPE_CLASS_CHECK (NODE)->has_constexpr_ctor)
1805 /* Nonzero if this class defines an overloaded operator new. (An
1806 operator new [] doesn't count.) */
1807 #define TYPE_HAS_NEW_OPERATOR(NODE) \
1808 (LANG_TYPE_CLASS_CHECK (NODE)->has_new)
1810 /* Nonzero if this class defines an overloaded operator new[]. */
1811 #define TYPE_HAS_ARRAY_NEW_OPERATOR(NODE) \
1812 (LANG_TYPE_CLASS_CHECK (NODE)->has_array_new)
1814 /* Nonzero means that this type is being defined. I.e., the left brace
1815 starting the definition of this type has been seen. */
1816 #define TYPE_BEING_DEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->being_defined)
1818 /* Nonzero means that this type is either complete or being defined, so we
1819 can do lookup in it. */
1820 #define COMPLETE_OR_OPEN_TYPE_P(NODE) \
1821 (COMPLETE_TYPE_P (NODE) || (CLASS_TYPE_P (NODE) && TYPE_BEING_DEFINED (NODE)))
1823 /* Mark bits for repeated base checks. */
1824 #define TYPE_MARKED_P(NODE) TREE_LANG_FLAG_6 (TYPE_CHECK (NODE))
1826 /* Nonzero if the class NODE has multiple paths to the same (virtual)
1827 base object. */
1828 #define CLASSTYPE_DIAMOND_SHAPED_P(NODE) \
1829 (LANG_TYPE_CLASS_CHECK(NODE)->diamond_shaped)
1831 /* Nonzero if the class NODE has multiple instances of the same base
1832 type. */
1833 #define CLASSTYPE_REPEATED_BASE_P(NODE) \
1834 (LANG_TYPE_CLASS_CHECK(NODE)->repeated_base)
1836 /* The member function with which the vtable will be emitted:
1837 the first noninline non-pure-virtual member function. NULL_TREE
1838 if there is no key function or if this is a class template */
1839 #define CLASSTYPE_KEY_METHOD(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->key_method)
1841 /* Vector member functions defined in this class. Each element is
1842 either a FUNCTION_DECL, a TEMPLATE_DECL, or an OVERLOAD. All
1843 functions with the same name end up in the same slot. The first
1844 two elements are for constructors, and destructors, respectively.
1845 All template conversion operators to innermost template dependent
1846 types are overloaded on the next slot, if they exist. Note, the
1847 names for these functions will not all be the same. The
1848 non-template conversion operators & templated conversions to
1849 non-innermost template types are next, followed by ordinary member
1850 functions. There may be empty entries at the end of the vector.
1851 The conversion operators are unsorted. The ordinary member
1852 functions are sorted, once the class is complete. */
1853 #define CLASSTYPE_METHOD_VEC(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->methods)
1855 /* For class templates, this is a TREE_LIST of all member data,
1856 functions, types, and friends in the order of declaration.
1857 The TREE_PURPOSE of each TREE_LIST is NULL_TREE for a friend,
1858 and the RECORD_TYPE for the class template otherwise. */
1859 #define CLASSTYPE_DECL_LIST(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->decl_list)
1861 /* The slot in the CLASSTYPE_METHOD_VEC where constructors go. */
1862 #define CLASSTYPE_CONSTRUCTOR_SLOT 0
1864 /* The slot in the CLASSTYPE_METHOD_VEC where destructors go. */
1865 #define CLASSTYPE_DESTRUCTOR_SLOT 1
1867 /* The first slot in the CLASSTYPE_METHOD_VEC where conversion
1868 operators can appear. */
1869 #define CLASSTYPE_FIRST_CONVERSION_SLOT 2
1871 /* A FUNCTION_DECL or OVERLOAD for the constructors for NODE. These
1872 are the constructors that take an in-charge parameter. */
1873 #define CLASSTYPE_CONSTRUCTORS(NODE) \
1874 ((*CLASSTYPE_METHOD_VEC (NODE))[CLASSTYPE_CONSTRUCTOR_SLOT])
1876 /* A FUNCTION_DECL for the destructor for NODE. These are the
1877 destructors that take an in-charge parameter. If
1878 CLASSTYPE_LAZY_DESTRUCTOR is true, then this entry will be NULL
1879 until the destructor is created with lazily_declare_fn. */
1880 #define CLASSTYPE_DESTRUCTORS(NODE) \
1881 (CLASSTYPE_METHOD_VEC (NODE) \
1882 ? (*CLASSTYPE_METHOD_VEC (NODE))[CLASSTYPE_DESTRUCTOR_SLOT] \
1883 : NULL_TREE)
1885 /* A dictionary of the nested user-defined-types (class-types, or enums)
1886 found within this class. This table includes nested member class
1887 templates. */
1888 #define CLASSTYPE_NESTED_UTDS(NODE) \
1889 (LANG_TYPE_CLASS_CHECK (NODE)->nested_udts)
1891 /* Nonzero if NODE has a primary base class, i.e., a base class with
1892 which it shares the virtual function table pointer. */
1893 #define CLASSTYPE_HAS_PRIMARY_BASE_P(NODE) \
1894 (CLASSTYPE_PRIMARY_BINFO (NODE) != NULL_TREE)
1896 /* If non-NULL, this is the binfo for the primary base class, i.e.,
1897 the base class which contains the virtual function table pointer
1898 for this class. */
1899 #define CLASSTYPE_PRIMARY_BINFO(NODE) \
1900 (LANG_TYPE_CLASS_CHECK (NODE)->primary_base)
1902 /* A vector of BINFOs for the direct and indirect virtual base classes
1903 that this type uses in a post-order depth-first left-to-right
1904 order. (In other words, these bases appear in the order that they
1905 should be initialized.) */
1906 #define CLASSTYPE_VBASECLASSES(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->vbases)
1908 /* The type corresponding to NODE when NODE is used as a base class,
1909 i.e., NODE without virtual base classes. */
1911 #define CLASSTYPE_AS_BASE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->as_base)
1913 /* True iff NODE is the CLASSTYPE_AS_BASE version of some type. */
1915 #define IS_FAKE_BASE_TYPE(NODE) \
1916 (TREE_CODE (NODE) == RECORD_TYPE \
1917 && TYPE_CONTEXT (NODE) && CLASS_TYPE_P (TYPE_CONTEXT (NODE)) \
1918 && CLASSTYPE_AS_BASE (TYPE_CONTEXT (NODE)) == (NODE))
1920 /* These are the size and alignment of the type without its virtual
1921 base classes, for when we use this type as a base itself. */
1922 #define CLASSTYPE_SIZE(NODE) TYPE_SIZE (CLASSTYPE_AS_BASE (NODE))
1923 #define CLASSTYPE_SIZE_UNIT(NODE) TYPE_SIZE_UNIT (CLASSTYPE_AS_BASE (NODE))
1924 #define CLASSTYPE_ALIGN(NODE) TYPE_ALIGN (CLASSTYPE_AS_BASE (NODE))
1925 #define CLASSTYPE_USER_ALIGN(NODE) TYPE_USER_ALIGN (CLASSTYPE_AS_BASE (NODE))
1927 /* The alignment of NODE, without its virtual bases, in bytes. */
1928 #define CLASSTYPE_ALIGN_UNIT(NODE) \
1929 (CLASSTYPE_ALIGN (NODE) / BITS_PER_UNIT)
1931 /* True if this a Java interface type, declared with
1932 '__attribute__ ((java_interface))'. */
1933 #define TYPE_JAVA_INTERFACE(NODE) \
1934 (LANG_TYPE_CLASS_CHECK (NODE)->java_interface)
1936 /* A vec<tree> of virtual functions which cannot be inherited by
1937 derived classes. When deriving from this type, the derived
1938 class must provide its own definition for each of these functions. */
1939 #define CLASSTYPE_PURE_VIRTUALS(NODE) \
1940 (LANG_TYPE_CLASS_CHECK (NODE)->pure_virtuals)
1942 /* Nonzero means that this type is an abstract class type. */
1943 #define ABSTRACT_CLASS_TYPE_P(NODE) \
1944 (CLASS_TYPE_P (NODE) && CLASSTYPE_PURE_VIRTUALS(NODE))
1946 /* Nonzero means that this type has an X() constructor. */
1947 #define TYPE_HAS_DEFAULT_CONSTRUCTOR(NODE) \
1948 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_default_ctor)
1950 /* Nonzero means that this type contains a mutable member. */
1951 #define CLASSTYPE_HAS_MUTABLE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_mutable)
1952 #define TYPE_HAS_MUTABLE_P(NODE) (cp_has_mutable_p (NODE))
1954 /* Nonzero means that this class type is not POD for the purpose of layout
1955 (as defined in the ABI). This is different from the language's POD. */
1956 #define CLASSTYPE_NON_LAYOUT_POD_P(NODE) \
1957 (LANG_TYPE_CLASS_CHECK (NODE)->non_pod_class)
1959 /* Nonzero means that this class type is a non-standard-layout class. */
1960 #define CLASSTYPE_NON_STD_LAYOUT(NODE) \
1961 (LANG_TYPE_CLASS_CHECK (NODE)->non_std_layout)
1963 /* Nonzero means that this class contains pod types whose default
1964 initialization is not a zero initialization (namely, pointers to
1965 data members). */
1966 #define CLASSTYPE_NON_ZERO_INIT_P(NODE) \
1967 (LANG_TYPE_CLASS_CHECK (NODE)->non_zero_init)
1969 /* Nonzero if this class is "empty" in the sense of the C++ ABI. */
1970 #define CLASSTYPE_EMPTY_P(NODE) \
1971 (LANG_TYPE_CLASS_CHECK (NODE)->empty_p)
1973 /* Nonzero if this class is "nearly empty", i.e., contains only a
1974 virtual function table pointer. */
1975 #define CLASSTYPE_NEARLY_EMPTY_P(NODE) \
1976 (LANG_TYPE_CLASS_CHECK (NODE)->nearly_empty_p)
1978 /* Nonzero if this class contains an empty subobject. */
1979 #define CLASSTYPE_CONTAINS_EMPTY_CLASS_P(NODE) \
1980 (LANG_TYPE_CLASS_CHECK (NODE)->contains_empty_class_p)
1982 /* A list of class types of which this type is a friend. The
1983 TREE_VALUE is normally a TYPE, but will be a TEMPLATE_DECL in the
1984 case of a template friend. */
1985 #define CLASSTYPE_FRIEND_CLASSES(NODE) \
1986 (LANG_TYPE_CLASS_CHECK (NODE)->friend_classes)
1988 /* A list of the classes which grant friendship to this class. */
1989 #define CLASSTYPE_BEFRIENDING_CLASSES(NODE) \
1990 (LANG_TYPE_CLASS_CHECK (NODE)->befriending_classes)
1992 /* The associated LAMBDA_EXPR that made this class. */
1993 #define CLASSTYPE_LAMBDA_EXPR(NODE) \
1994 (LANG_TYPE_CLASS_CHECK (NODE)->lambda_expr)
1995 /* The extra mangling scope for this closure type. */
1996 #define LAMBDA_TYPE_EXTRA_SCOPE(NODE) \
1997 (LAMBDA_EXPR_EXTRA_SCOPE (CLASSTYPE_LAMBDA_EXPR (NODE)))
1999 /* Say whether this node was declared as a "class" or a "struct". */
2000 #define CLASSTYPE_DECLARED_CLASS(NODE) \
2001 (LANG_TYPE_CLASS_CHECK (NODE)->declared_class)
2003 /* Nonzero if this class has const members
2004 which have no specified initialization. */
2005 #define CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE) \
2006 (TYPE_LANG_SPECIFIC (NODE) \
2007 ? LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init : 0)
2008 #define SET_CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE, VALUE) \
2009 (LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init = (VALUE))
2011 /* Nonzero if this class has ref members
2012 which have no specified initialization. */
2013 #define CLASSTYPE_REF_FIELDS_NEED_INIT(NODE) \
2014 (TYPE_LANG_SPECIFIC (NODE) \
2015 ? LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init : 0)
2016 #define SET_CLASSTYPE_REF_FIELDS_NEED_INIT(NODE, VALUE) \
2017 (LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init = (VALUE))
2019 /* Nonzero if this class is included from a header file which employs
2020 `#pragma interface', and it is not included in its implementation file. */
2021 #define CLASSTYPE_INTERFACE_ONLY(NODE) \
2022 (LANG_TYPE_CLASS_CHECK (NODE)->interface_only)
2024 /* True if we have already determined whether or not vtables, VTTs,
2025 typeinfo, and other similar per-class data should be emitted in
2026 this translation unit. This flag does not indicate whether or not
2027 these items should be emitted; it only indicates that we know one
2028 way or the other. */
2029 #define CLASSTYPE_INTERFACE_KNOWN(NODE) \
2030 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown == 0)
2031 /* The opposite of CLASSTYPE_INTERFACE_KNOWN. */
2032 #define CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
2033 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown)
2035 #define SET_CLASSTYPE_INTERFACE_UNKNOWN_X(NODE,X) \
2036 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = !!(X))
2037 #define SET_CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
2038 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 1)
2039 #define SET_CLASSTYPE_INTERFACE_KNOWN(NODE) \
2040 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 0)
2042 /* Nonzero if a _DECL node requires us to output debug info for this class. */
2043 #define CLASSTYPE_DEBUG_REQUESTED(NODE) \
2044 (LANG_TYPE_CLASS_CHECK (NODE)->debug_requested)
2046 /* Additional macros for inheritance information. */
2048 /* Nonzero means that this class is on a path leading to a new vtable. */
2049 #define BINFO_VTABLE_PATH_MARKED(NODE) BINFO_FLAG_1 (NODE)
2051 /* Nonzero means B (a BINFO) has its own vtable. Any copies will not
2052 have this flag set. */
2053 #define BINFO_NEW_VTABLE_MARKED(B) (BINFO_FLAG_2 (B))
2055 /* Compare a BINFO_TYPE with another type for equality. For a binfo,
2056 this is functionally equivalent to using same_type_p, but
2057 measurably faster. At least one of the arguments must be a
2058 BINFO_TYPE. The other can be a BINFO_TYPE or a regular type. If
2059 BINFO_TYPE(T) ever stops being the main variant of the class the
2060 binfo is for, this macro must change. */
2061 #define SAME_BINFO_TYPE_P(A, B) ((A) == (B))
2063 /* Any subobject that needs a new vtable must have a vptr and must not
2064 be a non-virtual primary base (since it would then use the vtable from a
2065 derived class and never become non-primary.) */
2066 #define SET_BINFO_NEW_VTABLE_MARKED(B) \
2067 (BINFO_NEW_VTABLE_MARKED (B) = 1, \
2068 gcc_assert (!BINFO_PRIMARY_P (B) || BINFO_VIRTUAL_P (B)), \
2069 gcc_assert (TYPE_VFIELD (BINFO_TYPE (B))))
2071 /* Nonzero if this binfo is for a dependent base - one that should not
2072 be searched. */
2073 #define BINFO_DEPENDENT_BASE_P(NODE) BINFO_FLAG_3 (NODE)
2075 /* Nonzero if this binfo has lost its primary base binfo (because that
2076 is a nearly-empty virtual base that has been taken by some other
2077 base in the complete hierarchy. */
2078 #define BINFO_LOST_PRIMARY_P(NODE) BINFO_FLAG_4 (NODE)
2080 /* Nonzero if this BINFO is a primary base class. */
2081 #define BINFO_PRIMARY_P(NODE) BINFO_FLAG_5(NODE)
2083 /* Used by various search routines. */
2084 #define IDENTIFIER_MARKED(NODE) TREE_LANG_FLAG_0 (NODE)
2086 /* A vec<tree_pair_s> of the vcall indices associated with the class
2087 NODE. The PURPOSE of each element is a FUNCTION_DECL for a virtual
2088 function. The VALUE is the index into the virtual table where the
2089 vcall offset for that function is stored, when NODE is a virtual
2090 base. */
2091 #define CLASSTYPE_VCALL_INDICES(NODE) \
2092 (LANG_TYPE_CLASS_CHECK (NODE)->vcall_indices)
2094 /* The various vtables for the class NODE. The primary vtable will be
2095 first, followed by the construction vtables and VTT, if any. */
2096 #define CLASSTYPE_VTABLES(NODE) \
2097 (LANG_TYPE_CLASS_CHECK (NODE)->vtables)
2099 /* The std::type_info variable representing this class, or NULL if no
2100 such variable has been created. This field is only set for the
2101 TYPE_MAIN_VARIANT of the class. */
2102 #define CLASSTYPE_TYPEINFO_VAR(NODE) \
2103 (LANG_TYPE_CLASS_CHECK (NODE)->typeinfo_var)
2105 /* Accessor macros for the BINFO_VIRTUALS list. */
2107 /* The number of bytes by which to adjust the `this' pointer when
2108 calling this virtual function. Subtract this value from the this
2109 pointer. Always non-NULL, might be constant zero though. */
2110 #define BV_DELTA(NODE) (TREE_PURPOSE (NODE))
2112 /* If non-NULL, the vtable index at which to find the vcall offset
2113 when calling this virtual function. Add the value at that vtable
2114 index to the this pointer. */
2115 #define BV_VCALL_INDEX(NODE) (TREE_TYPE (NODE))
2117 /* The function to call. */
2118 #define BV_FN(NODE) (TREE_VALUE (NODE))
2120 /* Whether or not this entry is for a lost primary virtual base. */
2121 #define BV_LOST_PRIMARY(NODE) (TREE_LANG_FLAG_0 (NODE))
2123 /* For FUNCTION_TYPE or METHOD_TYPE, a list of the exceptions that
2124 this type can raise. Each TREE_VALUE is a _TYPE. The TREE_VALUE
2125 will be NULL_TREE to indicate a throw specification of `()', or
2126 no exceptions allowed. For a noexcept specification, TREE_VALUE
2127 is NULL_TREE and TREE_PURPOSE is the constant-expression. For
2128 a deferred noexcept-specification, TREE_PURPOSE is a DEFERRED_NOEXCEPT
2129 (for templates) or an OVERLOAD list of functions (for implicitly
2130 declared functions). */
2131 #define TYPE_RAISES_EXCEPTIONS(NODE) \
2132 TYPE_LANG_SLOT_1 (FUNC_OR_METHOD_CHECK (NODE))
2134 /* For FUNCTION_TYPE or METHOD_TYPE, return 1 iff it is declared `throw()'
2135 or noexcept(true). */
2136 #define TYPE_NOTHROW_P(NODE) nothrow_spec_p (TYPE_RAISES_EXCEPTIONS (NODE))
2138 /* For FUNCTION_TYPE or METHOD_TYPE, true if NODE is noexcept. This is the
2139 case for things declared noexcept(true) and, with -fnothrow-opt, for
2140 throw() functions. */
2141 #define TYPE_NOEXCEPT_P(NODE) type_noexcept_p (NODE)
2143 /* The binding level associated with the namespace. */
2144 #define NAMESPACE_LEVEL(NODE) \
2145 (LANG_DECL_NS_CHECK (NODE)->level)
2147 /* Flags shared by all forms of DECL_LANG_SPECIFIC.
2149 Some of the flags live here only to make lang_decl_min/fn smaller. Do
2150 not make this struct larger than 32 bits; instead, make sel smaller. */
2152 struct GTY(()) lang_decl_base {
2153 unsigned selector : 16; /* Larger than necessary for faster access. */
2154 ENUM_BITFIELD(languages) language : 4;
2155 unsigned use_template : 2;
2156 unsigned not_really_extern : 1; /* var or fn */
2157 unsigned initialized_in_class : 1; /* var or fn */
2158 unsigned repo_available_p : 1; /* var or fn */
2159 unsigned threadprivate_or_deleted_p : 1; /* var or fn */
2160 unsigned anticipated_p : 1; /* fn, type or template */
2161 unsigned friend_attr : 1; /* fn, type or template */
2162 unsigned template_conv_p : 1; /* var or template */
2163 unsigned odr_used : 1; /* var or fn */
2164 unsigned u2sel : 1;
2165 unsigned concept_p : 1; /* applies to vars and functions */
2166 /* 0 spare bits */
2169 /* True for DECL codes which have template info and access. */
2170 #define LANG_DECL_HAS_MIN(NODE) \
2171 (VAR_OR_FUNCTION_DECL_P (NODE) \
2172 || TREE_CODE (NODE) == FIELD_DECL \
2173 || TREE_CODE (NODE) == CONST_DECL \
2174 || TREE_CODE (NODE) == TYPE_DECL \
2175 || TREE_CODE (NODE) == TEMPLATE_DECL \
2176 || TREE_CODE (NODE) == USING_DECL)
2178 /* DECL_LANG_SPECIFIC for the above codes. */
2180 struct GTY(()) lang_decl_min {
2181 struct lang_decl_base base;
2183 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
2184 THUNK_ALIAS.
2185 In a FUNCTION_DECL for which DECL_THUNK_P does not hold,
2186 VAR_DECL, TYPE_DECL, or TEMPLATE_DECL, this is
2187 DECL_TEMPLATE_INFO. */
2188 tree template_info;
2190 union lang_decl_u2 {
2191 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
2192 THUNK_VIRTUAL_OFFSET.
2193 Otherwise this is DECL_ACCESS. */
2194 tree GTY ((tag ("0"))) access;
2196 /* For VAR_DECL in function, this is DECL_DISCRIMINATOR. */
2197 int GTY ((tag ("1"))) discriminator;
2198 } GTY ((desc ("%0.u.base.u2sel"))) u2;
2201 /* Additional DECL_LANG_SPECIFIC information for functions. */
2203 struct GTY(()) lang_decl_fn {
2204 struct lang_decl_min min;
2206 /* In an overloaded operator, this is the value of
2207 DECL_OVERLOADED_OPERATOR_P. */
2208 ENUM_BITFIELD (tree_code) operator_code : 16;
2210 unsigned global_ctor_p : 1;
2211 unsigned global_dtor_p : 1;
2212 unsigned assignment_operator_p : 1;
2213 unsigned static_function : 1;
2214 unsigned pure_virtual : 1;
2215 unsigned defaulted_p : 1;
2217 unsigned has_in_charge_parm_p : 1;
2218 unsigned has_vtt_parm_p : 1;
2219 unsigned pending_inline_p : 1;
2220 unsigned nonconverting : 1;
2221 unsigned thunk_p : 1;
2222 unsigned this_thunk_p : 1;
2223 unsigned hidden_friend_p : 1;
2224 unsigned omp_declare_reduction_p : 1;
2225 /* 2 spare bits on 32-bit hosts, 34 on 64-bit hosts. */
2227 /* For a non-thunk function decl, this is a tree list of
2228 friendly classes. For a thunk function decl, it is the
2229 thunked to function decl. */
2230 tree befriending_classes;
2232 /* For a non-virtual FUNCTION_DECL, this is
2233 DECL_FRIEND_CONTEXT. For a virtual FUNCTION_DECL for which
2234 DECL_THIS_THUNK_P does not hold, this is DECL_THUNKS. Both
2235 this pointer and result pointer adjusting thunks are
2236 chained here. This pointer thunks to return pointer thunks
2237 will be chained on the return pointer thunk. */
2238 tree context;
2240 union lang_decl_u5
2242 /* In a non-thunk FUNCTION_DECL or TEMPLATE_DECL, this is
2243 DECL_CLONED_FUNCTION. */
2244 tree GTY ((tag ("0"))) cloned_function;
2246 /* In a FUNCTION_DECL for which THUNK_P holds this is the
2247 THUNK_FIXED_OFFSET. */
2248 HOST_WIDE_INT GTY ((tag ("1"))) fixed_offset;
2249 } GTY ((desc ("%1.thunk_p"))) u5;
2251 union lang_decl_u3
2253 struct cp_token_cache * GTY ((tag ("1"))) pending_inline_info;
2254 struct language_function * GTY ((tag ("0")))
2255 saved_language_function;
2256 } GTY ((desc ("%1.pending_inline_p"))) u;
2260 /* DECL_LANG_SPECIFIC for namespaces. */
2262 struct GTY(()) lang_decl_ns {
2263 struct lang_decl_base base;
2264 cp_binding_level *level;
2265 tree ns_using;
2266 tree ns_users;
2269 /* DECL_LANG_SPECIFIC for parameters. */
2271 struct GTY(()) lang_decl_parm {
2272 struct lang_decl_base base;
2273 int level;
2274 int index;
2277 /* DECL_LANG_SPECIFIC for all types. It would be nice to just make this a
2278 union rather than a struct containing a union as its only field, but
2279 tree.h declares it as a struct. */
2281 struct GTY(()) lang_decl {
2282 union GTY((desc ("%h.base.selector"))) lang_decl_u {
2283 struct lang_decl_base GTY ((default)) base;
2284 struct lang_decl_min GTY((tag ("0"))) min;
2285 struct lang_decl_fn GTY ((tag ("1"))) fn;
2286 struct lang_decl_ns GTY((tag ("2"))) ns;
2287 struct lang_decl_parm GTY((tag ("3"))) parm;
2288 } u;
2291 /* Looks through a template (if present) to find what it declares. */
2292 #define STRIP_TEMPLATE(NODE) \
2293 (TREE_CODE (NODE) == TEMPLATE_DECL ? DECL_TEMPLATE_RESULT (NODE) : NODE)
2295 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
2297 #define LANG_DECL_MIN_CHECK(NODE) __extension__ \
2298 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
2299 if (!LANG_DECL_HAS_MIN (NODE)) \
2300 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
2301 &lt->u.min; })
2303 /* We want to be able to check DECL_CONSTRUCTOR_P and such on a function
2304 template, not just on a FUNCTION_DECL. So when looking for things in
2305 lang_decl_fn, look down through a TEMPLATE_DECL into its result. */
2306 #define LANG_DECL_FN_CHECK(NODE) __extension__ \
2307 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE)); \
2308 if (!DECL_DECLARES_FUNCTION_P (NODE) || lt->u.base.selector != 1) \
2309 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
2310 &lt->u.fn; })
2312 #define LANG_DECL_NS_CHECK(NODE) __extension__ \
2313 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
2314 if (TREE_CODE (NODE) != NAMESPACE_DECL || lt->u.base.selector != 2) \
2315 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
2316 &lt->u.ns; })
2318 #define LANG_DECL_PARM_CHECK(NODE) __extension__ \
2319 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
2320 if (TREE_CODE (NODE) != PARM_DECL) \
2321 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
2322 &lt->u.parm; })
2324 #define LANG_DECL_U2_CHECK(NODE, TF) __extension__ \
2325 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
2326 if (!LANG_DECL_HAS_MIN (NODE) || lt->u.base.u2sel != TF) \
2327 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
2328 &lt->u.min.u2; })
2330 #else
2332 #define LANG_DECL_MIN_CHECK(NODE) \
2333 (&DECL_LANG_SPECIFIC (NODE)->u.min)
2335 #define LANG_DECL_FN_CHECK(NODE) \
2336 (&DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE))->u.fn)
2338 #define LANG_DECL_NS_CHECK(NODE) \
2339 (&DECL_LANG_SPECIFIC (NODE)->u.ns)
2341 #define LANG_DECL_PARM_CHECK(NODE) \
2342 (&DECL_LANG_SPECIFIC (NODE)->u.parm)
2344 #define LANG_DECL_U2_CHECK(NODE, TF) \
2345 (&DECL_LANG_SPECIFIC (NODE)->u.min.u2)
2347 #endif /* ENABLE_TREE_CHECKING */
2349 /* For a FUNCTION_DECL or a VAR_DECL, the language linkage for the
2350 declaration. Some entities (like a member function in a local
2351 class, or a local variable) do not have linkage at all, and this
2352 macro should not be used in those cases.
2354 Implementation note: A FUNCTION_DECL without DECL_LANG_SPECIFIC was
2355 created by language-independent code, and has C linkage. Most
2356 VAR_DECLs have C++ linkage, and do not have DECL_LANG_SPECIFIC, but
2357 we do create DECL_LANG_SPECIFIC for variables with non-C++ linkage. */
2358 #define DECL_LANGUAGE(NODE) \
2359 (DECL_LANG_SPECIFIC (NODE) \
2360 ? DECL_LANG_SPECIFIC (NODE)->u.base.language \
2361 : (TREE_CODE (NODE) == FUNCTION_DECL \
2362 ? lang_c : lang_cplusplus))
2364 /* Set the language linkage for NODE to LANGUAGE. */
2365 #define SET_DECL_LANGUAGE(NODE, LANGUAGE) \
2366 (DECL_LANG_SPECIFIC (NODE)->u.base.language = (LANGUAGE))
2368 /* For FUNCTION_DECLs and TEMPLATE_DECLs: nonzero means that this function
2369 is a constructor. */
2370 #define DECL_CONSTRUCTOR_P(NODE) \
2371 DECL_CXX_CONSTRUCTOR_P (STRIP_TEMPLATE (NODE))
2373 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a complete
2374 object. */
2375 #define DECL_COMPLETE_CONSTRUCTOR_P(NODE) \
2376 (DECL_CONSTRUCTOR_P (NODE) \
2377 && DECL_NAME (NODE) == complete_ctor_identifier)
2379 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a base
2380 object. */
2381 #define DECL_BASE_CONSTRUCTOR_P(NODE) \
2382 (DECL_CONSTRUCTOR_P (NODE) \
2383 && DECL_NAME (NODE) == base_ctor_identifier)
2385 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor, but not either the
2386 specialized in-charge constructor or the specialized not-in-charge
2387 constructor. */
2388 #define DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P(NODE) \
2389 (DECL_DECLARES_FUNCTION_P (NODE) && DECL_CONSTRUCTOR_P (NODE) \
2390 && !DECL_CLONED_FUNCTION_P (NODE))
2392 /* Nonzero if NODE (a FUNCTION_DECL) is a copy constructor. */
2393 #define DECL_COPY_CONSTRUCTOR_P(NODE) \
2394 (DECL_CONSTRUCTOR_P (NODE) && copy_fn_p (NODE) > 0)
2396 /* Nonzero if NODE (a FUNCTION_DECL) is a move constructor. */
2397 #define DECL_MOVE_CONSTRUCTOR_P(NODE) \
2398 (DECL_CONSTRUCTOR_P (NODE) && move_fn_p (NODE))
2400 /* Nonzero if NODE (a FUNCTION_DECL or TEMPLATE_DECL)
2401 is a destructor. */
2402 #define DECL_DESTRUCTOR_P(NODE) \
2403 DECL_CXX_DESTRUCTOR_P (STRIP_TEMPLATE (NODE))
2405 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor, but not the
2406 specialized in-charge constructor, in-charge deleting constructor,
2407 or the base destructor. */
2408 #define DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P(NODE) \
2409 (DECL_DECLARES_FUNCTION_P (NODE) && DECL_DESTRUCTOR_P (NODE) \
2410 && !DECL_CLONED_FUNCTION_P (NODE))
2412 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
2413 object. */
2414 #define DECL_COMPLETE_DESTRUCTOR_P(NODE) \
2415 (DECL_DESTRUCTOR_P (NODE) \
2416 && DECL_NAME (NODE) == complete_dtor_identifier)
2418 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a base
2419 object. */
2420 #define DECL_BASE_DESTRUCTOR_P(NODE) \
2421 (DECL_DESTRUCTOR_P (NODE) \
2422 && DECL_NAME (NODE) == base_dtor_identifier)
2424 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
2425 object that deletes the object after it has been destroyed. */
2426 #define DECL_DELETING_DESTRUCTOR_P(NODE) \
2427 (DECL_DESTRUCTOR_P (NODE) \
2428 && DECL_NAME (NODE) == deleting_dtor_identifier)
2430 /* Nonzero if NODE (a FUNCTION_DECL) is a cloned constructor or
2431 destructor. */
2432 #define DECL_CLONED_FUNCTION_P(NODE) (!!decl_cloned_function_p (NODE, true))
2434 /* If DECL_CLONED_FUNCTION_P holds, this is the function that was
2435 cloned. */
2436 #define DECL_CLONED_FUNCTION(NODE) (*decl_cloned_function_p (NODE, false))
2438 /* Perform an action for each clone of FN, if FN is a function with
2439 clones. This macro should be used like:
2441 FOR_EACH_CLONE (clone, fn)
2442 { ... }
2445 #define FOR_EACH_CLONE(CLONE, FN) \
2446 if (TREE_CODE (FN) == FUNCTION_DECL \
2447 && (DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (FN) \
2448 || DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (FN))) \
2449 for (CLONE = DECL_CHAIN (FN); \
2450 CLONE && DECL_CLONED_FUNCTION_P (CLONE); \
2451 CLONE = DECL_CHAIN (CLONE))
2453 /* Nonzero if NODE has DECL_DISCRIMINATOR and not DECL_ACCESS. */
2454 #define DECL_DISCRIMINATOR_P(NODE) \
2455 (VAR_P (NODE) && DECL_FUNCTION_SCOPE_P (NODE))
2457 /* Discriminator for name mangling. */
2458 #define DECL_DISCRIMINATOR(NODE) (LANG_DECL_U2_CHECK (NODE, 1)->discriminator)
2460 /* True iff DECL_DISCRIMINATOR is set for a DECL_DISCRIMINATOR_P decl. */
2461 #define DECL_DISCRIMINATOR_SET_P(NODE) \
2462 (DECL_LANG_SPECIFIC (NODE) && DECL_LANG_SPECIFIC (NODE)->u.base.u2sel == 1)
2464 /* The index of a user-declared parameter in its function, starting at 1.
2465 All artificial parameters will have index 0. */
2466 #define DECL_PARM_INDEX(NODE) \
2467 (LANG_DECL_PARM_CHECK (NODE)->index)
2469 /* The level of a user-declared parameter in its function, starting at 1.
2470 A parameter of the function will have level 1; a parameter of the first
2471 nested function declarator (i.e. t in void f (void (*p)(T t))) will have
2472 level 2. */
2473 #define DECL_PARM_LEVEL(NODE) \
2474 (LANG_DECL_PARM_CHECK (NODE)->level)
2476 /* Nonzero if the VTT parm has been added to NODE. */
2477 #define DECL_HAS_VTT_PARM_P(NODE) \
2478 (LANG_DECL_FN_CHECK (NODE)->has_vtt_parm_p)
2480 /* Nonzero if NODE is a FUNCTION_DECL for which a VTT parameter is
2481 required. */
2482 #define DECL_NEEDS_VTT_PARM_P(NODE) \
2483 (CLASSTYPE_VBASECLASSES (DECL_CONTEXT (NODE)) \
2484 && (DECL_BASE_CONSTRUCTOR_P (NODE) \
2485 || DECL_BASE_DESTRUCTOR_P (NODE)))
2487 /* Nonzero if NODE is a user-defined conversion operator. */
2488 #define DECL_CONV_FN_P(NODE) \
2489 (DECL_NAME (NODE) && IDENTIFIER_TYPENAME_P (DECL_NAME (NODE)))
2491 /* If FN is a conversion operator, the type to which it converts.
2492 Otherwise, NULL_TREE. */
2493 #define DECL_CONV_FN_TYPE(FN) \
2494 (DECL_CONV_FN_P (FN) ? TREE_TYPE (DECL_NAME (FN)) : NULL_TREE)
2496 /* Nonzero if NODE, which is a TEMPLATE_DECL, is a template
2497 conversion operator to a type dependent on the innermost template
2498 args. */
2499 #define DECL_TEMPLATE_CONV_FN_P(NODE) \
2500 (DECL_LANG_SPECIFIC (TEMPLATE_DECL_CHECK (NODE))->u.base.template_conv_p)
2502 /* Nonzero if NODE, a static data member, was declared in its class as an
2503 array of unknown bound. */
2504 #define VAR_HAD_UNKNOWN_BOUND(NODE) \
2505 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE)) \
2506 ? DECL_LANG_SPECIFIC (NODE)->u.base.template_conv_p \
2507 : false)
2508 #define SET_VAR_HAD_UNKNOWN_BOUND(NODE) \
2509 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))->u.base.template_conv_p = true)
2511 /* Set the overloaded operator code for NODE to CODE. */
2512 #define SET_OVERLOADED_OPERATOR_CODE(NODE, CODE) \
2513 (LANG_DECL_FN_CHECK (NODE)->operator_code = (CODE))
2515 /* If NODE is an overloaded operator, then this returns the TREE_CODE
2516 associated with the overloaded operator.
2517 DECL_ASSIGNMENT_OPERATOR_P must also be checked to determine
2518 whether or not NODE is an assignment operator. If NODE is not an
2519 overloaded operator, ERROR_MARK is returned. Since the numerical
2520 value of ERROR_MARK is zero, this macro can be used as a predicate
2521 to test whether or not NODE is an overloaded operator. */
2522 #define DECL_OVERLOADED_OPERATOR_P(NODE) \
2523 (IDENTIFIER_OPNAME_P (DECL_NAME (NODE)) \
2524 ? LANG_DECL_FN_CHECK (NODE)->operator_code : ERROR_MARK)
2526 /* Nonzero if NODE is an assignment operator (including += and such). */
2527 #define DECL_ASSIGNMENT_OPERATOR_P(NODE) \
2528 (LANG_DECL_FN_CHECK (NODE)->assignment_operator_p)
2530 /* For FUNCTION_DECLs: nonzero means that this function is a
2531 constructor or a destructor with an extra in-charge parameter to
2532 control whether or not virtual bases are constructed. */
2533 #define DECL_HAS_IN_CHARGE_PARM_P(NODE) \
2534 (LANG_DECL_FN_CHECK (NODE)->has_in_charge_parm_p)
2536 /* Nonzero if DECL is a declaration of __builtin_constant_p. */
2537 #define DECL_IS_BUILTIN_CONSTANT_P(NODE) \
2538 (TREE_CODE (NODE) == FUNCTION_DECL \
2539 && DECL_BUILT_IN_CLASS (NODE) == BUILT_IN_NORMAL \
2540 && DECL_FUNCTION_CODE (NODE) == BUILT_IN_CONSTANT_P)
2542 /* Nonzero for _DECL means that this decl appears in (or will appear
2543 in) as a member in a RECORD_TYPE or UNION_TYPE node. It is also for
2544 detecting circularity in case members are multiply defined. In the
2545 case of a VAR_DECL, it is also used to determine how program storage
2546 should be allocated. */
2547 #define DECL_IN_AGGR_P(NODE) (DECL_LANG_FLAG_3 (NODE))
2549 /* Nonzero for a VAR_DECL means that the variable's initialization (if
2550 any) has been processed. (In general, DECL_INITIALIZED_P is
2551 !DECL_EXTERNAL, but static data members may be initialized even if
2552 not defined.) */
2553 #define DECL_INITIALIZED_P(NODE) \
2554 (TREE_LANG_FLAG_1 (VAR_DECL_CHECK (NODE)))
2556 /* Nonzero for a VAR_DECL iff an explicit initializer was provided
2557 or a non-trivial constructor is called. */
2558 #define DECL_NONTRIVIALLY_INITIALIZED_P(NODE) \
2559 (TREE_LANG_FLAG_3 (VAR_DECL_CHECK (NODE)))
2561 /* Nonzero for a VAR_DECL that was initialized with a
2562 constant-expression. */
2563 #define DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P(NODE) \
2564 (TREE_LANG_FLAG_2 (VAR_DECL_CHECK (NODE)))
2566 /* Nonzero if the DECL was initialized in the class definition itself,
2567 rather than outside the class. This is used for both static member
2568 VAR_DECLS, and FUNCTION_DECLS that are defined in the class. */
2569 #define DECL_INITIALIZED_IN_CLASS_P(DECL) \
2570 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \
2571 ->u.base.initialized_in_class)
2573 /* Nonzero if the DECL is used in the sense of 3.2 [basic.def.odr].
2574 Only available for decls with DECL_LANG_SPECIFIC. */
2575 #define DECL_ODR_USED(DECL) \
2576 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \
2577 ->u.base.odr_used)
2579 /* Nonzero for DECL means that this decl is just a friend declaration,
2580 and should not be added to the list of members for this class. */
2581 #define DECL_FRIEND_P(NODE) \
2582 (DECL_LANG_SPECIFIC (TYPE_FUNCTION_OR_TEMPLATE_DECL_CHECK (NODE)) \
2583 ->u.base.friend_attr)
2585 /* A TREE_LIST of the types which have befriended this FUNCTION_DECL. */
2586 #define DECL_BEFRIENDING_CLASSES(NODE) \
2587 (LANG_DECL_FN_CHECK (NODE)->befriending_classes)
2589 /* Nonzero for FUNCTION_DECL means that this decl is a static
2590 member function. */
2591 #define DECL_STATIC_FUNCTION_P(NODE) \
2592 (LANG_DECL_FN_CHECK (NODE)->static_function)
2594 /* Nonzero for FUNCTION_DECL means that this decl is a non-static
2595 member function. */
2596 #define DECL_NONSTATIC_MEMBER_FUNCTION_P(NODE) \
2597 (TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE)
2599 /* Nonzero for FUNCTION_DECL means that this decl is a member function
2600 (static or non-static). */
2601 #define DECL_FUNCTION_MEMBER_P(NODE) \
2602 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) || DECL_STATIC_FUNCTION_P (NODE))
2604 /* Nonzero for FUNCTION_DECL means that this member function
2605 has `this' as const X *const. */
2606 #define DECL_CONST_MEMFUNC_P(NODE) \
2607 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
2608 && CP_TYPE_CONST_P (TREE_TYPE (TREE_VALUE \
2609 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
2611 /* Nonzero for FUNCTION_DECL means that this member function
2612 has `this' as volatile X *const. */
2613 #define DECL_VOLATILE_MEMFUNC_P(NODE) \
2614 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
2615 && CP_TYPE_VOLATILE_P (TREE_TYPE (TREE_VALUE \
2616 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
2618 /* Nonzero for a DECL means that this member is a non-static member. */
2619 #define DECL_NONSTATIC_MEMBER_P(NODE) \
2620 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
2621 || TREE_CODE (NODE) == FIELD_DECL)
2623 /* Nonzero for _DECL means that this member object type
2624 is mutable. */
2625 #define DECL_MUTABLE_P(NODE) (DECL_LANG_FLAG_0 (NODE))
2627 /* Nonzero for _DECL means that this constructor or conversion function is
2628 non-converting. */
2629 #define DECL_NONCONVERTING_P(NODE) \
2630 (LANG_DECL_FN_CHECK (NODE)->nonconverting)
2632 /* Nonzero for FUNCTION_DECL means that this member function is a pure
2633 virtual function. */
2634 #define DECL_PURE_VIRTUAL_P(NODE) \
2635 (LANG_DECL_FN_CHECK (NODE)->pure_virtual)
2637 /* True (in a FUNCTION_DECL) if NODE is a virtual function that is an
2638 invalid overrider for a function from a base class. Once we have
2639 complained about an invalid overrider we avoid complaining about it
2640 again. */
2641 #define DECL_INVALID_OVERRIDER_P(NODE) \
2642 (DECL_LANG_FLAG_4 (NODE))
2644 /* True (in a FUNCTION_DECL) if NODE is a function declared with
2645 an override virt-specifier */
2646 #define DECL_OVERRIDE_P(NODE) (TREE_LANG_FLAG_0 (NODE))
2648 /* The thunks associated with NODE, a FUNCTION_DECL. */
2649 #define DECL_THUNKS(NODE) \
2650 (DECL_VIRTUAL_P (NODE) ? LANG_DECL_FN_CHECK (NODE)->context : NULL_TREE)
2652 /* Set DECL_THUNKS. */
2653 #define SET_DECL_THUNKS(NODE,THUNKS) \
2654 (LANG_DECL_FN_CHECK (NODE)->context = (THUNKS))
2656 /* If NODE, a FUNCTION_DECL, is a C++11 inheriting constructor, then this
2657 is the base it inherits from. */
2658 #define DECL_INHERITED_CTOR_BASE(NODE) \
2659 (DECL_CONSTRUCTOR_P (NODE) ? LANG_DECL_FN_CHECK (NODE)->context : NULL_TREE)
2661 /* Set the inherited base. */
2662 #define SET_DECL_INHERITED_CTOR_BASE(NODE,INH) \
2663 (LANG_DECL_FN_CHECK (NODE)->context = (INH))
2665 /* Nonzero if NODE is a thunk, rather than an ordinary function. */
2666 #define DECL_THUNK_P(NODE) \
2667 (TREE_CODE (NODE) == FUNCTION_DECL \
2668 && DECL_LANG_SPECIFIC (NODE) \
2669 && LANG_DECL_FN_CHECK (NODE)->thunk_p)
2671 /* Set DECL_THUNK_P for node. */
2672 #define SET_DECL_THUNK_P(NODE, THIS_ADJUSTING) \
2673 (LANG_DECL_FN_CHECK (NODE)->thunk_p = 1, \
2674 LANG_DECL_FN_CHECK (NODE)->this_thunk_p = (THIS_ADJUSTING))
2676 /* Nonzero if NODE is a this pointer adjusting thunk. */
2677 #define DECL_THIS_THUNK_P(NODE) \
2678 (DECL_THUNK_P (NODE) && LANG_DECL_FN_CHECK (NODE)->this_thunk_p)
2680 /* Nonzero if NODE is a result pointer adjusting thunk. */
2681 #define DECL_RESULT_THUNK_P(NODE) \
2682 (DECL_THUNK_P (NODE) && !LANG_DECL_FN_CHECK (NODE)->this_thunk_p)
2684 /* Nonzero if NODE is a FUNCTION_DECL, but not a thunk. */
2685 #define DECL_NON_THUNK_FUNCTION_P(NODE) \
2686 (TREE_CODE (NODE) == FUNCTION_DECL && !DECL_THUNK_P (NODE))
2688 /* Nonzero if NODE is `extern "C"'. */
2689 #define DECL_EXTERN_C_P(NODE) \
2690 (DECL_LANGUAGE (NODE) == lang_c)
2692 /* Nonzero if NODE is an `extern "C"' function. */
2693 #define DECL_EXTERN_C_FUNCTION_P(NODE) \
2694 (DECL_NON_THUNK_FUNCTION_P (NODE) && DECL_EXTERN_C_P (NODE))
2696 /* True iff DECL is an entity with vague linkage whose definition is
2697 available in this translation unit. */
2698 #define DECL_REPO_AVAILABLE_P(NODE) \
2699 (DECL_LANG_SPECIFIC (NODE)->u.base.repo_available_p)
2701 /* True if DECL is declared 'constexpr'. */
2702 #define DECL_DECLARED_CONSTEXPR_P(DECL) \
2703 DECL_LANG_FLAG_8 (VAR_OR_FUNCTION_DECL_CHECK (STRIP_TEMPLATE (DECL)))
2705 // True if NODE was declared as 'concept'. The flag implies that the
2706 // declaration is constexpr, that the declaration cannot be specialized or
2707 // refined, and that the result type must be convertible to bool.
2708 #define DECL_DECLARED_CONCEPT_P(NODE) \
2709 (DECL_LANG_SPECIFIC (NODE)->u.base.concept_p)
2711 /* Nonzero if this DECL is the __PRETTY_FUNCTION__ variable in a
2712 template function. */
2713 #define DECL_PRETTY_FUNCTION_P(NODE) \
2714 (DECL_NAME (NODE) \
2715 && !strcmp (IDENTIFIER_POINTER (DECL_NAME (NODE)), "__PRETTY_FUNCTION__"))
2717 /* Nonzero if the thread-local variable was declared with __thread
2718 as opposed to thread_local. */
2719 #define DECL_GNU_TLS_P(NODE) \
2720 (TREE_LANG_FLAG_0 (VAR_DECL_CHECK (NODE)))
2722 /* The _TYPE context in which this _DECL appears. This field holds the
2723 class where a virtual function instance is actually defined. */
2724 #define DECL_CLASS_CONTEXT(NODE) \
2725 (DECL_CLASS_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : NULL_TREE)
2727 /* For a non-member friend function, the class (if any) in which this
2728 friend was defined. For example, given:
2730 struct S { friend void f (); };
2732 the DECL_FRIEND_CONTEXT for `f' will be `S'. */
2733 #define DECL_FRIEND_CONTEXT(NODE) \
2734 ((DECL_DECLARES_FUNCTION_P (NODE) \
2735 && DECL_FRIEND_P (NODE) && !DECL_FUNCTION_MEMBER_P (NODE)) \
2736 ? LANG_DECL_FN_CHECK (NODE)->context \
2737 : NULL_TREE)
2739 /* Set the DECL_FRIEND_CONTEXT for NODE to CONTEXT. */
2740 #define SET_DECL_FRIEND_CONTEXT(NODE, CONTEXT) \
2741 (LANG_DECL_FN_CHECK (NODE)->context = (CONTEXT))
2743 #define CP_DECL_CONTEXT(NODE) \
2744 (!DECL_FILE_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : global_namespace)
2745 #define CP_TYPE_CONTEXT(NODE) \
2746 (!TYPE_FILE_SCOPE_P (NODE) ? TYPE_CONTEXT (NODE) : global_namespace)
2747 #define FROB_CONTEXT(NODE) \
2748 ((NODE) == global_namespace ? DECL_CONTEXT (NODE) : (NODE))
2750 /* 1 iff NODE has namespace scope, including the global namespace. */
2751 #define DECL_NAMESPACE_SCOPE_P(NODE) \
2752 (!DECL_TEMPLATE_PARM_P (NODE) \
2753 && TREE_CODE (CP_DECL_CONTEXT (NODE)) == NAMESPACE_DECL)
2755 #define TYPE_NAMESPACE_SCOPE_P(NODE) \
2756 (TREE_CODE (CP_TYPE_CONTEXT (NODE)) == NAMESPACE_DECL)
2758 #define NAMESPACE_SCOPE_P(NODE) \
2759 ((DECL_P (NODE) && DECL_NAMESPACE_SCOPE_P (NODE)) \
2760 || (TYPE_P (NODE) && TYPE_NAMESPACE_SCOPE_P (NODE)))
2762 /* 1 iff NODE is a class member. */
2763 #define DECL_CLASS_SCOPE_P(NODE) \
2764 (DECL_CONTEXT (NODE) && TYPE_P (DECL_CONTEXT (NODE)))
2766 #define TYPE_CLASS_SCOPE_P(NODE) \
2767 (TYPE_CONTEXT (NODE) && TYPE_P (TYPE_CONTEXT (NODE)))
2769 /* 1 iff NODE is function-local. */
2770 #define DECL_FUNCTION_SCOPE_P(NODE) \
2771 (DECL_CONTEXT (NODE) \
2772 && TREE_CODE (DECL_CONTEXT (NODE)) == FUNCTION_DECL)
2774 #define TYPE_FUNCTION_SCOPE_P(NODE) \
2775 (TYPE_CONTEXT (NODE) && TREE_CODE (TYPE_CONTEXT (NODE)) == FUNCTION_DECL)
2777 /* 1 iff VAR_DECL node NODE is a type-info decl. This flag is set for
2778 both the primary typeinfo object and the associated NTBS name. */
2779 #define DECL_TINFO_P(NODE) TREE_LANG_FLAG_4 (VAR_DECL_CHECK (NODE))
2781 /* 1 iff VAR_DECL node NODE is virtual table or VTT. */
2782 #define DECL_VTABLE_OR_VTT_P(NODE) TREE_LANG_FLAG_5 (VAR_DECL_CHECK (NODE))
2784 /* 1 iff FUNCTION_TYPE or METHOD_TYPE has a ref-qualifier (either & or &&). */
2785 #define FUNCTION_REF_QUALIFIED(NODE) \
2786 TREE_LANG_FLAG_4 (FUNC_OR_METHOD_CHECK (NODE))
2788 /* 1 iff FUNCTION_TYPE or METHOD_TYPE has &&-ref-qualifier. */
2789 #define FUNCTION_RVALUE_QUALIFIED(NODE) \
2790 TREE_LANG_FLAG_5 (FUNC_OR_METHOD_CHECK (NODE))
2792 /* Returns 1 iff VAR_DECL is a construction virtual table.
2793 DECL_VTABLE_OR_VTT_P will be true in this case and must be checked
2794 before using this macro. */
2795 #define DECL_CONSTRUCTION_VTABLE_P(NODE) \
2796 TREE_LANG_FLAG_6 (VAR_DECL_CHECK (NODE))
2798 /* 1 iff NODE is function-local, but for types. */
2799 #define LOCAL_CLASS_P(NODE) \
2800 (decl_function_context (TYPE_MAIN_DECL (NODE)) != NULL_TREE)
2802 /* For a NAMESPACE_DECL: the list of using namespace directives
2803 The PURPOSE is the used namespace, the value is the namespace
2804 that is the common ancestor. */
2805 #define DECL_NAMESPACE_USING(NODE) (LANG_DECL_NS_CHECK (NODE)->ns_using)
2807 /* In a NAMESPACE_DECL, the DECL_INITIAL is used to record all users
2808 of a namespace, to record the transitive closure of using namespace. */
2809 #define DECL_NAMESPACE_USERS(NODE) (LANG_DECL_NS_CHECK (NODE)->ns_users)
2811 /* In a NAMESPACE_DECL, the list of namespaces which have associated
2812 themselves with this one. */
2813 #define DECL_NAMESPACE_ASSOCIATIONS(NODE) \
2814 DECL_INITIAL (NAMESPACE_DECL_CHECK (NODE))
2816 /* In a NAMESPACE_DECL, points to the original namespace if this is
2817 a namespace alias. */
2818 #define DECL_NAMESPACE_ALIAS(NODE) \
2819 DECL_ABSTRACT_ORIGIN (NAMESPACE_DECL_CHECK (NODE))
2820 #define ORIGINAL_NAMESPACE(NODE) \
2821 (DECL_NAMESPACE_ALIAS (NODE) ? DECL_NAMESPACE_ALIAS (NODE) : (NODE))
2823 /* Nonzero if NODE is the std namespace. */
2824 #define DECL_NAMESPACE_STD_P(NODE) \
2825 (TREE_CODE (NODE) == NAMESPACE_DECL \
2826 && CP_DECL_CONTEXT (NODE) == global_namespace \
2827 && DECL_NAME (NODE) == std_identifier)
2829 /* In a TREE_LIST concatenating using directives, indicate indirect
2830 directives */
2831 #define TREE_INDIRECT_USING(NODE) TREE_LANG_FLAG_0 (TREE_LIST_CHECK (NODE))
2833 /* In a TREE_LIST in an attribute list, indicates that the attribute
2834 must be applied at instantiation time. */
2835 #define ATTR_IS_DEPENDENT(NODE) TREE_LANG_FLAG_0 (TREE_LIST_CHECK (NODE))
2837 /* In a TREE_LIST in the argument of attribute abi_tag, indicates that the tag
2838 was inherited from a template parameter, not explicitly indicated. */
2839 #define ABI_TAG_IMPLICIT(NODE) TREE_LANG_FLAG_0 (TREE_LIST_CHECK (NODE))
2841 extern tree decl_shadowed_for_var_lookup (tree);
2842 extern void decl_shadowed_for_var_insert (tree, tree);
2844 /* Non zero if this is a using decl for a dependent scope. */
2845 #define DECL_DEPENDENT_P(NODE) DECL_LANG_FLAG_0 (USING_DECL_CHECK (NODE))
2847 /* The scope named in a using decl. */
2848 #define USING_DECL_SCOPE(NODE) TREE_TYPE (USING_DECL_CHECK (NODE))
2850 /* The decls named by a using decl. */
2851 #define USING_DECL_DECLS(NODE) DECL_INITIAL (USING_DECL_CHECK (NODE))
2853 /* Non zero if the using decl refers to a dependent type. */
2854 #define USING_DECL_TYPENAME_P(NODE) DECL_LANG_FLAG_1 (USING_DECL_CHECK (NODE))
2856 /* In a VAR_DECL, true if we have a shadowed local variable
2857 in the shadowed var table for this VAR_DECL. */
2858 #define DECL_HAS_SHADOWED_FOR_VAR_P(NODE) \
2859 (VAR_DECL_CHECK (NODE)->decl_with_vis.shadowed_for_var_p)
2861 /* In a VAR_DECL for a variable declared in a for statement,
2862 this is the shadowed (local) variable. */
2863 #define DECL_SHADOWED_FOR_VAR(NODE) \
2864 (DECL_HAS_SHADOWED_FOR_VAR_P(NODE) ? decl_shadowed_for_var_lookup (NODE) : NULL)
2866 #define SET_DECL_SHADOWED_FOR_VAR(NODE, VAL) \
2867 (decl_shadowed_for_var_insert (NODE, VAL))
2869 /* In a FUNCTION_DECL, this is nonzero if this function was defined in
2870 the class definition. We have saved away the text of the function,
2871 but have not yet processed it. */
2872 #define DECL_PENDING_INLINE_P(NODE) \
2873 (LANG_DECL_FN_CHECK (NODE)->pending_inline_p)
2875 /* If DECL_PENDING_INLINE_P holds, this is the saved text of the
2876 function. */
2877 #define DECL_PENDING_INLINE_INFO(NODE) \
2878 (LANG_DECL_FN_CHECK (NODE)->u.pending_inline_info)
2880 /* Nonzero for TYPE_DECL means that it was written 'using name = type'. */
2881 #define TYPE_DECL_ALIAS_P(NODE) \
2882 DECL_LANG_FLAG_6 (TYPE_DECL_CHECK (NODE))
2884 /* Nonzero for a type which is an alias for another type; i.e, a type
2885 which declaration was written 'using name-of-type =
2886 another-type'. */
2887 #define TYPE_ALIAS_P(NODE) \
2888 (TYPE_P (NODE) \
2889 && TYPE_NAME (NODE) \
2890 && TREE_CODE (TYPE_NAME (NODE)) == TYPE_DECL \
2891 && TYPE_DECL_ALIAS_P (TYPE_NAME (NODE)))
2893 /* For a class type: if this structure has many fields, we'll sort them
2894 and put them into a TREE_VEC. */
2895 #define CLASSTYPE_SORTED_FIELDS(NODE) \
2896 (LANG_TYPE_CLASS_CHECK (NODE)->sorted_fields)
2898 /* If non-NULL for a VAR_DECL, FUNCTION_DECL, TYPE_DECL or
2899 TEMPLATE_DECL, the entity is either a template specialization (if
2900 DECL_USE_TEMPLATE is nonzero) or the abstract instance of the
2901 template itself.
2903 In either case, DECL_TEMPLATE_INFO is a TREE_LIST, whose
2904 TREE_PURPOSE is the TEMPLATE_DECL of which this entity is a
2905 specialization or abstract instance. The TREE_VALUE is the
2906 template arguments used to specialize the template.
2908 Consider:
2910 template <typename T> struct S { friend void f(T) {} };
2912 In this case, S<int>::f is, from the point of view of the compiler,
2913 an instantiation of a template -- but, from the point of view of
2914 the language, each instantiation of S results in a wholly unrelated
2915 global function f. In this case, DECL_TEMPLATE_INFO for S<int>::f
2916 will be non-NULL, but DECL_USE_TEMPLATE will be zero. */
2917 #define DECL_TEMPLATE_INFO(NODE) \
2918 (DECL_LANG_SPECIFIC (VAR_TEMPL_TYPE_FIELD_OR_FUNCTION_DECL_CHECK (NODE)) \
2919 ->u.min.template_info)
2921 /* For a VAR_DECL, indicates that the variable is actually a
2922 non-static data member of anonymous union that has been promoted to
2923 variable status. */
2924 #define DECL_ANON_UNION_VAR_P(NODE) \
2925 (DECL_LANG_FLAG_4 (VAR_DECL_CHECK (NODE)))
2927 /* Template information for a RECORD_TYPE or UNION_TYPE. */
2928 #define CLASSTYPE_TEMPLATE_INFO(NODE) \
2929 (LANG_TYPE_CLASS_CHECK (RECORD_OR_UNION_CHECK (NODE))->template_info)
2931 /* Template information for an ENUMERAL_TYPE. Although an enumeration may
2932 not be a primary template, it may be declared within the scope of a
2933 primary template and the enumeration constants may depend on
2934 non-type template parameters. */
2935 #define ENUM_TEMPLATE_INFO(NODE) \
2936 (TYPE_LANG_SLOT_1 (ENUMERAL_TYPE_CHECK (NODE)))
2938 /* Template information for a template template parameter. */
2939 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO(NODE) \
2940 (LANG_TYPE_CLASS_CHECK (BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK (NODE)) \
2941 ->template_info)
2943 /* Template information for an ENUMERAL_, RECORD_, UNION_TYPE, or
2944 BOUND_TEMPLATE_TEMPLATE_PARM type. Note that if NODE is a
2945 specialization of an alias template, this accessor returns the
2946 template info for the alias template, not the one (if any) for the
2947 template of the underlying type. */
2948 #define TYPE_TEMPLATE_INFO(NODE) \
2949 ((TYPE_ALIAS_P (NODE) && DECL_LANG_SPECIFIC (TYPE_NAME (NODE))) \
2950 ? (DECL_LANG_SPECIFIC (TYPE_NAME (NODE)) \
2951 ? DECL_TEMPLATE_INFO (TYPE_NAME (NODE)) \
2952 : NULL_TREE) \
2953 : ((TREE_CODE (NODE) == ENUMERAL_TYPE) \
2954 ? ENUM_TEMPLATE_INFO (NODE) \
2955 : ((TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM) \
2956 ? TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO (NODE) \
2957 : (CLASS_TYPE_P (NODE) \
2958 ? CLASSTYPE_TEMPLATE_INFO (NODE) \
2959 : NULL_TREE))))
2962 /* Set the template information for an ENUMERAL_, RECORD_, or
2963 UNION_TYPE to VAL. */
2964 #define SET_TYPE_TEMPLATE_INFO(NODE, VAL) \
2965 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2966 ? (ENUM_TEMPLATE_INFO (NODE) = (VAL)) \
2967 : ((CLASS_TYPE_P (NODE) && !TYPE_ALIAS_P (NODE)) \
2968 ? (CLASSTYPE_TEMPLATE_INFO (NODE) = (VAL)) \
2969 : (DECL_TEMPLATE_INFO (TYPE_NAME (NODE)) = (VAL))))
2971 #define TI_TEMPLATE(NODE) TREE_TYPE (TEMPLATE_INFO_CHECK (NODE))
2972 #define TI_ARGS(NODE) TREE_CHAIN (TEMPLATE_INFO_CHECK (NODE))
2973 #define TI_PENDING_TEMPLATE_FLAG(NODE) TREE_LANG_FLAG_1 (NODE)
2974 /* For a given TREE_VEC containing a template argument list,
2975 this property contains the number of arguments that are not
2976 defaulted. */
2977 #define NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) TREE_CHAIN (TREE_VEC_CHECK (NODE))
2978 /* Below are the setter and getter of the NON_DEFAULT_TEMPLATE_ARGS_COUNT
2979 property. */
2980 #define SET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE, INT_VALUE) \
2981 NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) = build_int_cst (NULL_TREE, INT_VALUE)
2982 #ifdef ENABLE_CHECKING
2983 #define GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) \
2984 int_cst_value (NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE))
2985 #else
2986 #define GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) \
2987 NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE) \
2988 ? int_cst_value (NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE)) \
2989 : TREE_VEC_LENGTH (INNERMOST_TEMPLATE_ARGS (NODE))
2990 #endif
2991 /* The list of typedefs - used in the template - that need
2992 access checking at template instantiation time.
2994 FIXME this should be associated with the TEMPLATE_DECL, not the
2995 TEMPLATE_INFO. */
2996 #define TI_TYPEDEFS_NEEDING_ACCESS_CHECKING(NODE) \
2997 ((struct tree_template_info*)TEMPLATE_INFO_CHECK \
2998 (NODE))->typedefs_needing_access_checking
3000 /* We use TREE_VECs to hold template arguments. If there is only one
3001 level of template arguments, then the TREE_VEC contains the
3002 arguments directly. If there is more than one level of template
3003 arguments, then each entry in the TREE_VEC is itself a TREE_VEC,
3004 containing the template arguments for a single level. The first
3005 entry in the outer TREE_VEC is the outermost level of template
3006 parameters; the last is the innermost.
3008 It is incorrect to ever form a template argument vector containing
3009 only one level of arguments, but which is a TREE_VEC containing as
3010 its only entry the TREE_VEC for that level.
3012 For each TREE_VEC containing the template arguments for a single
3013 level, it's possible to get or set the number of non defaulted
3014 template arguments by using the accessor macros
3015 GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT or
3016 SET_NON_DEFAULT_TEMPLATE_ARGS_COUNT. */
3018 /* Nonzero if the template arguments is actually a vector of vectors,
3019 rather than just a vector. */
3020 #define TMPL_ARGS_HAVE_MULTIPLE_LEVELS(NODE) \
3021 (NODE && TREE_VEC_LENGTH (NODE) && TREE_VEC_ELT (NODE, 0) \
3022 && TREE_CODE (TREE_VEC_ELT (NODE, 0)) == TREE_VEC)
3024 /* The depth of a template argument vector. When called directly by
3025 the parser, we use a TREE_LIST rather than a TREE_VEC to represent
3026 template arguments. In fact, we may even see NULL_TREE if there
3027 are no template arguments. In both of those cases, there is only
3028 one level of template arguments. */
3029 #define TMPL_ARGS_DEPTH(NODE) \
3030 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (NODE) ? TREE_VEC_LENGTH (NODE) : 1)
3032 /* The LEVELth level of the template ARGS. The outermost level of
3033 args is level 1, not level 0. */
3034 #define TMPL_ARGS_LEVEL(ARGS, LEVEL) \
3035 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (ARGS) \
3036 ? TREE_VEC_ELT (ARGS, (LEVEL) - 1) : (ARGS))
3038 /* Set the LEVELth level of the template ARGS to VAL. This macro does
3039 not work with single-level argument vectors. */
3040 #define SET_TMPL_ARGS_LEVEL(ARGS, LEVEL, VAL) \
3041 (TREE_VEC_ELT (ARGS, (LEVEL) - 1) = (VAL))
3043 /* Accesses the IDXth parameter in the LEVELth level of the ARGS. */
3044 #define TMPL_ARG(ARGS, LEVEL, IDX) \
3045 (TREE_VEC_ELT (TMPL_ARGS_LEVEL (ARGS, LEVEL), IDX))
3047 /* Given a single level of template arguments in NODE, return the
3048 number of arguments. */
3049 #define NUM_TMPL_ARGS(NODE) \
3050 (TREE_VEC_LENGTH (NODE))
3052 /* Returns the innermost level of template arguments in ARGS. */
3053 #define INNERMOST_TEMPLATE_ARGS(NODE) \
3054 (get_innermost_template_args ((NODE), 1))
3056 /* The number of levels of template parameters given by NODE. */
3057 #define TMPL_PARMS_DEPTH(NODE) \
3058 ((HOST_WIDE_INT) TREE_INT_CST_LOW (TREE_PURPOSE (NODE)))
3060 /* The TEMPLATE_DECL instantiated or specialized by NODE. This
3061 TEMPLATE_DECL will be the immediate parent, not the most general
3062 template. For example, in:
3064 template <class T> struct S { template <class U> void f(U); }
3066 the FUNCTION_DECL for S<int>::f<double> will have, as its
3067 DECL_TI_TEMPLATE, `template <class U> S<int>::f<U>'.
3069 As a special case, for a member friend template of a template
3070 class, this value will not be a TEMPLATE_DECL, but rather an
3071 IDENTIFIER_NODE or OVERLOAD indicating the name of the template and
3072 any explicit template arguments provided. For example, in:
3074 template <class T> struct S { friend void f<int>(int, double); }
3076 the DECL_TI_TEMPLATE will be an IDENTIFIER_NODE for `f' and the
3077 DECL_TI_ARGS will be {int}.
3079 For a FIELD_DECL with a non-static data member initializer, this value
3080 is the FIELD_DECL it was instantiated from. */
3081 #define DECL_TI_TEMPLATE(NODE) TI_TEMPLATE (DECL_TEMPLATE_INFO (NODE))
3083 /* The template arguments used to obtain this decl from the most
3084 general form of DECL_TI_TEMPLATE. For the example given for
3085 DECL_TI_TEMPLATE, the DECL_TI_ARGS will be {int, double}. These
3086 are always the full set of arguments required to instantiate this
3087 declaration from the most general template specialized here. */
3088 #define DECL_TI_ARGS(NODE) TI_ARGS (DECL_TEMPLATE_INFO (NODE))
3090 /* The TEMPLATE_DECL associated with NODE, a class type. Even if NODE
3091 will be generated from a partial specialization, the TEMPLATE_DECL
3092 referred to here will be the original template. For example,
3093 given:
3095 template <typename T> struct S {};
3096 template <typename T> struct S<T*> {};
3098 the CLASSTPYE_TI_TEMPLATE for S<int*> will be S, not the S<T*>. */
3099 #define CLASSTYPE_TI_TEMPLATE(NODE) TI_TEMPLATE (CLASSTYPE_TEMPLATE_INFO (NODE))
3100 #define CLASSTYPE_TI_ARGS(NODE) TI_ARGS (CLASSTYPE_TEMPLATE_INFO (NODE))
3102 /* For a template instantiation TYPE, returns the TYPE corresponding
3103 to the primary template. Otherwise returns TYPE itself. */
3104 #define CLASSTYPE_PRIMARY_TEMPLATE_TYPE(TYPE) \
3105 ((CLASSTYPE_USE_TEMPLATE ((TYPE)) \
3106 && !CLASSTYPE_TEMPLATE_SPECIALIZATION ((TYPE))) \
3107 ? TREE_TYPE (DECL_TEMPLATE_RESULT (DECL_PRIMARY_TEMPLATE \
3108 (CLASSTYPE_TI_TEMPLATE ((TYPE))))) \
3109 : (TYPE))
3111 /* Like CLASS_TI_TEMPLATE, but also works for ENUMERAL_TYPEs. */
3112 #define TYPE_TI_TEMPLATE(NODE) \
3113 (TI_TEMPLATE (TYPE_TEMPLATE_INFO (NODE)))
3115 /* Like DECL_TI_ARGS, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */
3116 #define TYPE_TI_ARGS(NODE) \
3117 (TI_ARGS (TYPE_TEMPLATE_INFO (NODE)))
3119 #define INNERMOST_TEMPLATE_PARMS(NODE) TREE_VALUE (NODE)
3121 /* Nonzero if NODE (a TEMPLATE_DECL) is a member template, in the
3122 sense of [temp.mem]. */
3123 #define DECL_MEMBER_TEMPLATE_P(NODE) \
3124 (DECL_LANG_FLAG_1 (TEMPLATE_DECL_CHECK (NODE)))
3126 /* Nonzero if the NODE corresponds to the template parameters for a
3127 member template, whose inline definition is being processed after
3128 the class definition is complete. */
3129 #define TEMPLATE_PARMS_FOR_INLINE(NODE) TREE_LANG_FLAG_1 (NODE)
3131 /* Determine if a declaration (PARM_DECL or FIELD_DECL) is a pack. */
3132 #define DECL_PACK_P(NODE) \
3133 (DECL_P (NODE) && PACK_EXPANSION_P (TREE_TYPE (NODE)))
3135 /* Determines if NODE is an expansion of one or more parameter packs,
3136 e.g., a TYPE_PACK_EXPANSION or EXPR_PACK_EXPANSION. */
3137 #define PACK_EXPANSION_P(NODE) \
3138 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION \
3139 || TREE_CODE (NODE) == EXPR_PACK_EXPANSION)
3141 /* Extracts the type or expression pattern from a TYPE_PACK_EXPANSION or
3142 EXPR_PACK_EXPANSION. */
3143 #define PACK_EXPANSION_PATTERN(NODE) \
3144 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION? TREE_TYPE (NODE) \
3145 : TREE_OPERAND (NODE, 0))
3147 /* Sets the type or expression pattern for a TYPE_PACK_EXPANSION or
3148 EXPR_PACK_EXPANSION. */
3149 #define SET_PACK_EXPANSION_PATTERN(NODE,VALUE) \
3150 if (TREE_CODE (NODE) == TYPE_PACK_EXPANSION) \
3151 TREE_TYPE (NODE) = VALUE; \
3152 else \
3153 TREE_OPERAND (NODE, 0) = VALUE
3155 /* The list of parameter packs used in the PACK_EXPANSION_* node. The
3156 TREE_VALUE of each TREE_LIST contains the parameter packs. */
3157 #define PACK_EXPANSION_PARAMETER_PACKS(NODE) \
3158 *(TREE_CODE (NODE) == EXPR_PACK_EXPANSION \
3159 ? &TREE_OPERAND (NODE, 1) \
3160 : &TYPE_MINVAL (TYPE_PACK_EXPANSION_CHECK (NODE)))
3162 /* Any additional template args to be applied when substituting into
3163 the pattern, set by tsubst_pack_expansion for partial instantiations. */
3164 #define PACK_EXPANSION_EXTRA_ARGS(NODE) \
3165 *(TREE_CODE (NODE) == TYPE_PACK_EXPANSION \
3166 ? &TYPE_MAXVAL (NODE) \
3167 : &TREE_OPERAND ((NODE), 2))
3169 /* True iff this pack expansion is within a function context. */
3170 #define PACK_EXPANSION_LOCAL_P(NODE) TREE_LANG_FLAG_0 (NODE)
3172 /* True iff the wildcard can match a template parameter pack. */
3173 #define WILDCARD_PACK_P(NODE) TREE_LANG_FLAG_0 (NODE)
3175 /* Determine if this is an argument pack. */
3176 #define ARGUMENT_PACK_P(NODE) \
3177 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK \
3178 || TREE_CODE (NODE) == NONTYPE_ARGUMENT_PACK)
3180 /* The arguments stored in an argument pack. Arguments are stored in a
3181 TREE_VEC, which may have length zero. */
3182 #define ARGUMENT_PACK_ARGS(NODE) \
3183 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK? TREE_TYPE (NODE) \
3184 : TREE_OPERAND (NODE, 0))
3186 /* Set the arguments stored in an argument pack. VALUE must be a
3187 TREE_VEC. */
3188 #define SET_ARGUMENT_PACK_ARGS(NODE,VALUE) \
3189 if (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK) \
3190 TREE_TYPE (NODE) = VALUE; \
3191 else \
3192 TREE_OPERAND (NODE, 0) = VALUE
3194 /* Whether the argument pack is "incomplete", meaning that more
3195 arguments can still be deduced. Incomplete argument packs are only
3196 used when the user has provided an explicit template argument list
3197 for a variadic function template. Some of the explicit template
3198 arguments will be placed into the beginning of the argument pack,
3199 but additional arguments might still be deduced. */
3200 #define ARGUMENT_PACK_INCOMPLETE_P(NODE) \
3201 TREE_ADDRESSABLE (ARGUMENT_PACK_ARGS (NODE))
3203 /* When ARGUMENT_PACK_INCOMPLETE_P, stores the explicit template
3204 arguments used to fill this pack. */
3205 #define ARGUMENT_PACK_EXPLICIT_ARGS(NODE) \
3206 TREE_TYPE (ARGUMENT_PACK_ARGS (NODE))
3208 /* In an ARGUMENT_PACK_SELECT, the argument pack from which an
3209 argument will be selected. */
3210 #define ARGUMENT_PACK_SELECT_FROM_PACK(NODE) \
3211 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->argument_pack)
3213 /* In an ARGUMENT_PACK_SELECT, the index of the argument we want to
3214 select. */
3215 #define ARGUMENT_PACK_SELECT_INDEX(NODE) \
3216 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->index)
3218 /* In an ARGUMENT_PACK_SELECT, the actual underlying argument that the
3219 ARGUMENT_PACK_SELECT represents. */
3220 #define ARGUMENT_PACK_SELECT_ARG(NODE) \
3221 TREE_VEC_ELT (ARGUMENT_PACK_ARGS (ARGUMENT_PACK_SELECT_FROM_PACK (NODE)), \
3222 ARGUMENT_PACK_SELECT_INDEX (NODE));
3224 /* In a FUNCTION_DECL, the saved language-specific per-function data. */
3225 #define DECL_SAVED_FUNCTION_DATA(NODE) \
3226 (LANG_DECL_FN_CHECK (FUNCTION_DECL_CHECK (NODE)) \
3227 ->u.saved_language_function)
3229 /* True if NODE is an implicit INDIRECT_EXPR from convert_from_reference. */
3230 #define REFERENCE_REF_P(NODE) \
3231 (INDIRECT_REF_P (NODE) \
3232 && TREE_TYPE (TREE_OPERAND (NODE, 0)) \
3233 && (TREE_CODE (TREE_TYPE (TREE_OPERAND ((NODE), 0))) \
3234 == REFERENCE_TYPE))
3236 /* True if NODE is a REFERENCE_TYPE which is OK to instantiate to be a
3237 reference to VLA type, because it's used for VLA capture. */
3238 #define REFERENCE_VLA_OK(NODE) \
3239 (TYPE_LANG_FLAG_5 (REFERENCE_TYPE_CHECK (NODE)))
3241 #define NEW_EXPR_USE_GLOBAL(NODE) \
3242 TREE_LANG_FLAG_0 (NEW_EXPR_CHECK (NODE))
3243 #define DELETE_EXPR_USE_GLOBAL(NODE) \
3244 TREE_LANG_FLAG_0 (DELETE_EXPR_CHECK (NODE))
3245 #define DELETE_EXPR_USE_VEC(NODE) \
3246 TREE_LANG_FLAG_1 (DELETE_EXPR_CHECK (NODE))
3248 /* Indicates that this is a non-dependent COMPOUND_EXPR which will
3249 resolve to a function call. */
3250 #define COMPOUND_EXPR_OVERLOADED(NODE) \
3251 TREE_LANG_FLAG_0 (COMPOUND_EXPR_CHECK (NODE))
3253 /* In a CALL_EXPR appearing in a template, true if Koenig lookup
3254 should be performed at instantiation time. */
3255 #define KOENIG_LOOKUP_P(NODE) TREE_LANG_FLAG_0 (CALL_EXPR_CHECK (NODE))
3257 /* True if CALL_EXPR expresses list-initialization of an object. */
3258 #define CALL_EXPR_LIST_INIT_P(NODE) \
3259 TREE_LANG_FLAG_3 (TREE_CHECK2 ((NODE),CALL_EXPR,AGGR_INIT_EXPR))
3261 /* Indicates whether a string literal has been parenthesized. Such
3262 usages are disallowed in certain circumstances. */
3264 #define PAREN_STRING_LITERAL_P(NODE) \
3265 TREE_LANG_FLAG_0 (STRING_CST_CHECK (NODE))
3267 /* Indicates whether a COMPONENT_REF has been parenthesized, or an
3268 INDIRECT_REF comes from parenthesizing a VAR_DECL. Currently only set
3269 some of the time in C++14 mode. */
3271 #define REF_PARENTHESIZED_P(NODE) \
3272 TREE_LANG_FLAG_2 (TREE_CHECK2 ((NODE), COMPONENT_REF, INDIRECT_REF))
3274 /* Nonzero if this AGGR_INIT_EXPR provides for initialization via a
3275 constructor call, rather than an ordinary function call. */
3276 #define AGGR_INIT_VIA_CTOR_P(NODE) \
3277 TREE_LANG_FLAG_0 (AGGR_INIT_EXPR_CHECK (NODE))
3279 /* Nonzero if expanding this AGGR_INIT_EXPR should first zero-initialize
3280 the object. */
3281 #define AGGR_INIT_ZERO_FIRST(NODE) \
3282 TREE_LANG_FLAG_2 (AGGR_INIT_EXPR_CHECK (NODE))
3284 /* AGGR_INIT_EXPR accessors. These are equivalent to the CALL_EXPR
3285 accessors, except for AGGR_INIT_EXPR_SLOT (which takes the place of
3286 CALL_EXPR_STATIC_CHAIN). */
3288 #define AGGR_INIT_EXPR_FN(NODE) TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 1)
3289 #define AGGR_INIT_EXPR_SLOT(NODE) \
3290 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 2)
3291 #define AGGR_INIT_EXPR_ARG(NODE, I) \
3292 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), (I) + 3)
3293 #define aggr_init_expr_nargs(NODE) (VL_EXP_OPERAND_LENGTH(NODE) - 3)
3295 /* AGGR_INIT_EXPR_ARGP returns a pointer to the argument vector for NODE.
3296 We can't use &AGGR_INIT_EXPR_ARG (NODE, 0) because that will complain if
3297 the argument count is zero when checking is enabled. Instead, do
3298 the pointer arithmetic to advance past the 3 fixed operands in a
3299 AGGR_INIT_EXPR. That produces a valid pointer to just past the end of
3300 the operand array, even if it's not valid to dereference it. */
3301 #define AGGR_INIT_EXPR_ARGP(NODE) \
3302 (&(TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 0)) + 3)
3304 /* Abstract iterators for AGGR_INIT_EXPRs. */
3306 /* Structure containing iterator state. */
3307 typedef struct aggr_init_expr_arg_iterator_d {
3308 tree t; /* the aggr_init_expr */
3309 int n; /* argument count */
3310 int i; /* next argument index */
3311 } aggr_init_expr_arg_iterator;
3313 /* Initialize the abstract argument list iterator object ITER with the
3314 arguments from AGGR_INIT_EXPR node EXP. */
3315 inline void
3316 init_aggr_init_expr_arg_iterator (tree exp,
3317 aggr_init_expr_arg_iterator *iter)
3319 iter->t = exp;
3320 iter->n = aggr_init_expr_nargs (exp);
3321 iter->i = 0;
3324 /* Return the next argument from abstract argument list iterator object ITER,
3325 and advance its state. Return NULL_TREE if there are no more arguments. */
3326 inline tree
3327 next_aggr_init_expr_arg (aggr_init_expr_arg_iterator *iter)
3329 tree result;
3330 if (iter->i >= iter->n)
3331 return NULL_TREE;
3332 result = AGGR_INIT_EXPR_ARG (iter->t, iter->i);
3333 iter->i++;
3334 return result;
3337 /* Initialize the abstract argument list iterator object ITER, then advance
3338 past and return the first argument. Useful in for expressions, e.g.
3339 for (arg = first_aggr_init_expr_arg (exp, &iter); arg;
3340 arg = next_aggr_init_expr_arg (&iter)) */
3341 inline tree
3342 first_aggr_init_expr_arg (tree exp, aggr_init_expr_arg_iterator *iter)
3344 init_aggr_init_expr_arg_iterator (exp, iter);
3345 return next_aggr_init_expr_arg (iter);
3348 /* Test whether there are more arguments in abstract argument list iterator
3349 ITER, without changing its state. */
3350 inline bool
3351 more_aggr_init_expr_args_p (const aggr_init_expr_arg_iterator *iter)
3353 return (iter->i < iter->n);
3356 /* Iterate through each argument ARG of AGGR_INIT_EXPR CALL, using variable
3357 ITER (of type aggr_init_expr_arg_iterator) to hold the iteration state. */
3358 #define FOR_EACH_AGGR_INIT_EXPR_ARG(arg, iter, call) \
3359 for ((arg) = first_aggr_init_expr_arg ((call), &(iter)); (arg); \
3360 (arg) = next_aggr_init_expr_arg (&(iter)))
3362 /* VEC_INIT_EXPR accessors. */
3363 #define VEC_INIT_EXPR_SLOT(NODE) TREE_OPERAND (VEC_INIT_EXPR_CHECK (NODE), 0)
3364 #define VEC_INIT_EXPR_INIT(NODE) TREE_OPERAND (VEC_INIT_EXPR_CHECK (NODE), 1)
3366 /* Indicates that a VEC_INIT_EXPR is a potential constant expression.
3367 Only set when the current function is constexpr. */
3368 #define VEC_INIT_EXPR_IS_CONSTEXPR(NODE) \
3369 TREE_LANG_FLAG_0 (VEC_INIT_EXPR_CHECK (NODE))
3371 /* Indicates that a VEC_INIT_EXPR is expressing value-initialization. */
3372 #define VEC_INIT_EXPR_VALUE_INIT(NODE) \
3373 TREE_LANG_FLAG_1 (VEC_INIT_EXPR_CHECK (NODE))
3375 /* The condition under which this MUST_NOT_THROW_EXPR actually blocks
3376 exceptions. NULL_TREE means 'true'. */
3377 #define MUST_NOT_THROW_COND(NODE) \
3378 TREE_OPERAND (MUST_NOT_THROW_EXPR_CHECK (NODE), 1)
3380 /* The TYPE_MAIN_DECL for a class template type is a TYPE_DECL, not a
3381 TEMPLATE_DECL. This macro determines whether or not a given class
3382 type is really a template type, as opposed to an instantiation or
3383 specialization of one. */
3384 #define CLASSTYPE_IS_TEMPLATE(NODE) \
3385 (CLASSTYPE_TEMPLATE_INFO (NODE) \
3386 && !CLASSTYPE_USE_TEMPLATE (NODE) \
3387 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE)))
3389 /* The name used by the user to name the typename type. Typically,
3390 this is an IDENTIFIER_NODE, and the same as the DECL_NAME on the
3391 corresponding TYPE_DECL. However, this may also be a
3392 TEMPLATE_ID_EXPR if we had something like `typename X::Y<T>'. */
3393 #define TYPENAME_TYPE_FULLNAME(NODE) \
3394 (TYPE_VALUES_RAW (TYPENAME_TYPE_CHECK (NODE)))
3396 /* True if a TYPENAME_TYPE was declared as an "enum". */
3397 #define TYPENAME_IS_ENUM_P(NODE) \
3398 (TREE_LANG_FLAG_0 (TYPENAME_TYPE_CHECK (NODE)))
3400 /* True if a TYPENAME_TYPE was declared as a "class", "struct", or
3401 "union". */
3402 #define TYPENAME_IS_CLASS_P(NODE) \
3403 (TREE_LANG_FLAG_1 (TYPENAME_TYPE_CHECK (NODE)))
3405 /* True if a TYPENAME_TYPE is in the process of being resolved. */
3406 #define TYPENAME_IS_RESOLVING_P(NODE) \
3407 (TREE_LANG_FLAG_2 (TYPENAME_TYPE_CHECK (NODE)))
3409 /* [class.virtual]
3411 A class that declares or inherits a virtual function is called a
3412 polymorphic class. */
3413 #define TYPE_POLYMORPHIC_P(NODE) (TREE_LANG_FLAG_2 (NODE))
3415 /* Nonzero if this class has a virtual function table pointer. */
3416 #define TYPE_CONTAINS_VPTR_P(NODE) \
3417 (TYPE_POLYMORPHIC_P (NODE) || CLASSTYPE_VBASECLASSES (NODE))
3419 /* This flag is true of a local VAR_DECL if it was declared in a for
3420 statement, but we are no longer in the scope of the for. */
3421 #define DECL_DEAD_FOR_LOCAL(NODE) DECL_LANG_FLAG_7 (VAR_DECL_CHECK (NODE))
3423 /* This flag is set on a VAR_DECL that is a DECL_DEAD_FOR_LOCAL
3424 if we already emitted a warning about using it. */
3425 #define DECL_ERROR_REPORTED(NODE) DECL_LANG_FLAG_0 (VAR_DECL_CHECK (NODE))
3427 /* Nonzero if NODE is a FUNCTION_DECL (for a function with global
3428 scope) declared in a local scope. */
3429 #define DECL_LOCAL_FUNCTION_P(NODE) \
3430 DECL_LANG_FLAG_0 (FUNCTION_DECL_CHECK (NODE))
3432 /* Nonzero if NODE is the target for genericization of 'break' stmts. */
3433 #define LABEL_DECL_BREAK(NODE) \
3434 DECL_LANG_FLAG_0 (LABEL_DECL_CHECK (NODE))
3436 /* Nonzero if NODE is the target for genericization of 'continue' stmts. */
3437 #define LABEL_DECL_CONTINUE(NODE) \
3438 DECL_LANG_FLAG_1 (LABEL_DECL_CHECK (NODE))
3440 /* True if NODE was declared with auto in its return type, but it has
3441 started compilation and so the return type might have been changed by
3442 return type deduction; its declared return type should be found in
3443 DECL_STRUCT_FUNCTION(NODE)->language->x_auto_return_pattern. */
3444 #define FNDECL_USED_AUTO(NODE) \
3445 TREE_LANG_FLAG_2 (FUNCTION_DECL_CHECK (NODE))
3447 /* Nonzero if NODE is a DECL which we know about but which has not
3448 been explicitly declared, such as a built-in function or a friend
3449 declared inside a class. In the latter case DECL_HIDDEN_FRIEND_P
3450 will be set. */
3451 #define DECL_ANTICIPATED(NODE) \
3452 (DECL_LANG_SPECIFIC (TYPE_FUNCTION_OR_TEMPLATE_DECL_CHECK (NODE)) \
3453 ->u.base.anticipated_p)
3455 /* Nonzero if NODE is a FUNCTION_DECL which was declared as a friend
3456 within a class but has not been declared in the surrounding scope.
3457 The function is invisible except via argument dependent lookup. */
3458 #define DECL_HIDDEN_FRIEND_P(NODE) \
3459 (LANG_DECL_FN_CHECK (DECL_COMMON_CHECK (NODE))->hidden_friend_p)
3461 /* Nonzero if NODE is an artificial FUNCTION_DECL for
3462 #pragma omp declare reduction. */
3463 #define DECL_OMP_DECLARE_REDUCTION_P(NODE) \
3464 (LANG_DECL_FN_CHECK (DECL_COMMON_CHECK (NODE))->omp_declare_reduction_p)
3466 /* Nonzero if DECL has been declared threadprivate by
3467 #pragma omp threadprivate. */
3468 #define CP_DECL_THREADPRIVATE_P(DECL) \
3469 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (DECL))->u.base.threadprivate_or_deleted_p)
3471 /* Nonzero if DECL was declared with '= delete'. */
3472 #define DECL_DELETED_FN(DECL) \
3473 (LANG_DECL_FN_CHECK (DECL)->min.base.threadprivate_or_deleted_p)
3475 /* Nonzero if DECL was declared with '= default' (maybe implicitly). */
3476 #define DECL_DEFAULTED_FN(DECL) \
3477 (LANG_DECL_FN_CHECK (DECL)->defaulted_p)
3479 /* Nonzero if DECL is explicitly defaulted in the class body. */
3480 #define DECL_DEFAULTED_IN_CLASS_P(DECL) \
3481 (DECL_DEFAULTED_FN (DECL) && DECL_INITIALIZED_IN_CLASS_P (DECL))
3482 /* Nonzero if DECL was defaulted outside the class body. */
3483 #define DECL_DEFAULTED_OUTSIDE_CLASS_P(DECL) \
3484 (DECL_DEFAULTED_FN (DECL) \
3485 && !(DECL_ARTIFICIAL (DECL) || DECL_INITIALIZED_IN_CLASS_P (DECL)))
3487 /* Record whether a typedef for type `int' was actually `signed int'. */
3488 #define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP)
3490 /* Returns nonzero if DECL has external linkage, as specified by the
3491 language standard. (This predicate may hold even when the
3492 corresponding entity is not actually given external linkage in the
3493 object file; see decl_linkage for details.) */
3494 #define DECL_EXTERNAL_LINKAGE_P(DECL) \
3495 (decl_linkage (DECL) == lk_external)
3497 /* Keep these codes in ascending code order. */
3499 #define INTEGRAL_CODE_P(CODE) \
3500 ((CODE) == ENUMERAL_TYPE \
3501 || (CODE) == BOOLEAN_TYPE \
3502 || (CODE) == INTEGER_TYPE)
3504 /* [basic.fundamental]
3506 Types bool, char, wchar_t, and the signed and unsigned integer types
3507 are collectively called integral types.
3509 Note that INTEGRAL_TYPE_P, as defined in tree.h, allows enumeration
3510 types as well, which is incorrect in C++. Keep these checks in
3511 ascending code order. */
3512 #define CP_INTEGRAL_TYPE_P(TYPE) \
3513 (TREE_CODE (TYPE) == BOOLEAN_TYPE \
3514 || TREE_CODE (TYPE) == INTEGER_TYPE)
3516 /* Returns true if TYPE is an integral or enumeration name. Keep
3517 these checks in ascending code order. */
3518 #define INTEGRAL_OR_ENUMERATION_TYPE_P(TYPE) \
3519 (TREE_CODE (TYPE) == ENUMERAL_TYPE || CP_INTEGRAL_TYPE_P (TYPE))
3521 /* Returns true if TYPE is an integral or unscoped enumeration type. */
3522 #define INTEGRAL_OR_UNSCOPED_ENUMERATION_TYPE_P(TYPE) \
3523 (UNSCOPED_ENUM_P (TYPE) || CP_INTEGRAL_TYPE_P (TYPE))
3525 /* True if the class type TYPE is a literal type. */
3526 #define CLASSTYPE_LITERAL_P(TYPE) \
3527 (LANG_TYPE_CLASS_CHECK (TYPE)->is_literal)
3529 /* [basic.fundamental]
3531 Integral and floating types are collectively called arithmetic
3532 types.
3534 As a GNU extension, we also accept complex types.
3536 Keep these checks in ascending code order. */
3537 #define ARITHMETIC_TYPE_P(TYPE) \
3538 (CP_INTEGRAL_TYPE_P (TYPE) \
3539 || TREE_CODE (TYPE) == REAL_TYPE \
3540 || TREE_CODE (TYPE) == COMPLEX_TYPE)
3542 /* True iff TYPE is cv decltype(nullptr). */
3543 #define NULLPTR_TYPE_P(TYPE) (TREE_CODE (TYPE) == NULLPTR_TYPE)
3545 /* [basic.types]
3547 Arithmetic types, enumeration types, pointer types,
3548 pointer-to-member types, and std::nullptr_t are collectively called
3549 scalar types.
3551 Keep these checks in ascending code order. */
3552 #define SCALAR_TYPE_P(TYPE) \
3553 (TYPE_PTRDATAMEM_P (TYPE) \
3554 || TREE_CODE (TYPE) == ENUMERAL_TYPE \
3555 || ARITHMETIC_TYPE_P (TYPE) \
3556 || TYPE_PTR_P (TYPE) \
3557 || TYPE_PTRMEMFUNC_P (TYPE) \
3558 || NULLPTR_TYPE_P (TYPE))
3560 /* Determines whether this type is a C++0x scoped enumeration
3561 type. Scoped enumerations types are introduced via "enum class" or
3562 "enum struct", e.g.,
3564 enum class Color {
3565 Red, Green, Blue
3568 Scoped enumeration types are different from normal (unscoped)
3569 enumeration types in several ways:
3571 - The enumerators of a scoped enumeration type are only available
3572 within the scope of the enumeration type and not in the
3573 enclosing scope. For example, the Red color can be referred to
3574 with "Color::Red" but not "Red".
3576 - Scoped enumerators and enumerations do not implicitly convert
3577 to integers or 'bool'.
3579 - The underlying type of the enum is well-defined. */
3580 #define SCOPED_ENUM_P(TYPE) \
3581 (TREE_CODE (TYPE) == ENUMERAL_TYPE && ENUM_IS_SCOPED (TYPE))
3583 /* Determine whether this is an unscoped enumeration type. */
3584 #define UNSCOPED_ENUM_P(TYPE) \
3585 (TREE_CODE (TYPE) == ENUMERAL_TYPE && !ENUM_IS_SCOPED (TYPE))
3587 /* Set the flag indicating whether an ENUMERAL_TYPE is a C++0x scoped
3588 enumeration type (1) or a normal (unscoped) enumeration type
3589 (0). */
3590 #define SET_SCOPED_ENUM_P(TYPE, VAL) \
3591 (ENUM_IS_SCOPED (TYPE) = (VAL))
3593 #define SET_OPAQUE_ENUM_P(TYPE, VAL) \
3594 (ENUM_IS_OPAQUE (TYPE) = (VAL))
3596 #define OPAQUE_ENUM_P(TYPE) \
3597 (TREE_CODE (TYPE) == ENUMERAL_TYPE && ENUM_IS_OPAQUE (TYPE))
3599 /* Determines whether an ENUMERAL_TYPE has an explicit
3600 underlying type. */
3601 #define ENUM_FIXED_UNDERLYING_TYPE_P(NODE) (TYPE_LANG_FLAG_5 (NODE))
3603 /* Returns the underlying type of the given enumeration type. The
3604 underlying type is determined in different ways, depending on the
3605 properties of the enum:
3607 - In C++0x, the underlying type can be explicitly specified, e.g.,
3609 enum E1 : char { ... } // underlying type is char
3611 - In a C++0x scoped enumeration, the underlying type is int
3612 unless otherwises specified:
3614 enum class E2 { ... } // underlying type is int
3616 - Otherwise, the underlying type is determined based on the
3617 values of the enumerators. In this case, the
3618 ENUM_UNDERLYING_TYPE will not be set until after the definition
3619 of the enumeration is completed by finish_enum. */
3620 #define ENUM_UNDERLYING_TYPE(TYPE) \
3621 TREE_TYPE (ENUMERAL_TYPE_CHECK (TYPE))
3623 /* [dcl.init.aggr]
3625 An aggregate is an array or a class with no user-provided
3626 constructors, no brace-or-equal-initializers for non-static data
3627 members, no private or protected non-static data members, no
3628 base classes, and no virtual functions.
3630 As an extension, we also treat vectors as aggregates. Keep these
3631 checks in ascending code order. */
3632 #define CP_AGGREGATE_TYPE_P(TYPE) \
3633 (TREE_CODE (TYPE) == VECTOR_TYPE \
3634 ||TREE_CODE (TYPE) == ARRAY_TYPE \
3635 || (CLASS_TYPE_P (TYPE) && !CLASSTYPE_NON_AGGREGATE (TYPE)))
3637 /* Nonzero for a class type means that the class type has a
3638 user-declared constructor. */
3639 #define TYPE_HAS_USER_CONSTRUCTOR(NODE) (TYPE_LANG_FLAG_1 (NODE))
3641 /* Nonzero means that the FUNCTION_TYPE or METHOD_TYPE has a
3642 late-specified return type. */
3643 #define TYPE_HAS_LATE_RETURN_TYPE(NODE) \
3644 (TYPE_LANG_FLAG_2 (FUNC_OR_METHOD_CHECK (NODE)))
3646 /* When appearing in an INDIRECT_REF, it means that the tree structure
3647 underneath is actually a call to a constructor. This is needed
3648 when the constructor must initialize local storage (which can
3649 be automatically destroyed), rather than allowing it to allocate
3650 space from the heap.
3652 When appearing in a SAVE_EXPR, it means that underneath
3653 is a call to a constructor.
3655 When appearing in a CONSTRUCTOR, the expression is a
3656 compound literal.
3658 When appearing in a FIELD_DECL, it means that this field
3659 has been duly initialized in its constructor. */
3660 #define TREE_HAS_CONSTRUCTOR(NODE) (TREE_LANG_FLAG_4 (NODE))
3662 /* True if NODE is a brace-enclosed initializer. */
3663 #define BRACE_ENCLOSED_INITIALIZER_P(NODE) \
3664 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_TYPE (NODE) == init_list_type_node)
3666 /* True if NODE is a compound-literal, i.e., a brace-enclosed
3667 initializer cast to a particular type. */
3668 #define COMPOUND_LITERAL_P(NODE) \
3669 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_HAS_CONSTRUCTOR (NODE))
3671 #define EMPTY_CONSTRUCTOR_P(NODE) (TREE_CODE (NODE) == CONSTRUCTOR \
3672 && vec_safe_is_empty(CONSTRUCTOR_ELTS(NODE))\
3673 && !TREE_HAS_CONSTRUCTOR (NODE))
3675 /* True if NODE is a init-list used as a direct-initializer, i.e.
3676 B b{1,2}, not B b({1,2}) or B b = {1,2}. */
3677 #define CONSTRUCTOR_IS_DIRECT_INIT(NODE) (TREE_LANG_FLAG_0 (CONSTRUCTOR_CHECK (NODE)))
3679 /* True if an uninitialized element in NODE should not be treated as
3680 implicitly value-initialized. Only used in constexpr evaluation. */
3681 #define CONSTRUCTOR_NO_IMPLICIT_ZERO(NODE) \
3682 (TREE_LANG_FLAG_1 (CONSTRUCTOR_CHECK (NODE)))
3684 /* True if this CONSTRUCTOR should not be used as a variable initializer
3685 because it was loaded from a constexpr variable with mutable fields. */
3686 #define CONSTRUCTOR_MUTABLE_POISON(NODE) \
3687 (TREE_LANG_FLAG_2 (CONSTRUCTOR_CHECK (NODE)))
3689 #define DIRECT_LIST_INIT_P(NODE) \
3690 (BRACE_ENCLOSED_INITIALIZER_P (NODE) && CONSTRUCTOR_IS_DIRECT_INIT (NODE))
3692 /* True if NODE represents a conversion for direct-initialization in a
3693 template. Set by perform_implicit_conversion_flags. */
3694 #define IMPLICIT_CONV_EXPR_DIRECT_INIT(NODE) \
3695 (TREE_LANG_FLAG_0 (IMPLICIT_CONV_EXPR_CHECK (NODE)))
3697 /* Nonzero means that an object of this type can not be initialized using
3698 an initializer list. */
3699 #define CLASSTYPE_NON_AGGREGATE(NODE) \
3700 (LANG_TYPE_CLASS_CHECK (NODE)->non_aggregate)
3701 #define TYPE_NON_AGGREGATE_CLASS(NODE) \
3702 (CLASS_TYPE_P (NODE) && CLASSTYPE_NON_AGGREGATE (NODE))
3704 /* Nonzero if there is a non-trivial X::op=(cv X&) for this class. */
3705 #define TYPE_HAS_COMPLEX_COPY_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_copy_assign)
3707 /* Nonzero if there is a non-trivial X::X(cv X&) for this class. */
3708 #define TYPE_HAS_COMPLEX_COPY_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_copy_ctor)
3710 /* Nonzero if there is a non-trivial X::op=(X&&) for this class. */
3711 #define TYPE_HAS_COMPLEX_MOVE_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_move_assign)
3713 /* Nonzero if there is a non-trivial X::X(X&&) for this class. */
3714 #define TYPE_HAS_COMPLEX_MOVE_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_move_ctor)
3716 /* Nonzero if there is no trivial default constructor for this class. */
3717 #define TYPE_HAS_COMPLEX_DFLT(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_dflt)
3719 /* Nonzero if TYPE has a trivial destructor. From [class.dtor]:
3721 A destructor is trivial if it is an implicitly declared
3722 destructor and if:
3724 - all of the direct base classes of its class have trivial
3725 destructors,
3727 - for all of the non-static data members of its class that are
3728 of class type (or array thereof), each such class has a
3729 trivial destructor. */
3730 #define TYPE_HAS_TRIVIAL_DESTRUCTOR(NODE) \
3731 (!TYPE_HAS_NONTRIVIAL_DESTRUCTOR (NODE))
3733 /* Nonzero for _TYPE node means that this type does not have a trivial
3734 destructor. Therefore, destroying an object of this type will
3735 involve a call to a destructor. This can apply to objects of
3736 ARRAY_TYPE is the type of the elements needs a destructor. */
3737 #define TYPE_HAS_NONTRIVIAL_DESTRUCTOR(NODE) \
3738 (TYPE_LANG_FLAG_4 (NODE))
3740 /* Nonzero for class type means that the default constructor is trivial. */
3741 #define TYPE_HAS_TRIVIAL_DFLT(NODE) \
3742 (TYPE_HAS_DEFAULT_CONSTRUCTOR (NODE) && ! TYPE_HAS_COMPLEX_DFLT (NODE))
3744 /* Nonzero for class type means that copy initialization of this type can use
3745 a bitwise copy. */
3746 #define TYPE_HAS_TRIVIAL_COPY_CTOR(NODE) \
3747 (TYPE_HAS_COPY_CTOR (NODE) && ! TYPE_HAS_COMPLEX_COPY_CTOR (NODE))
3749 /* Nonzero for class type means that assignment of this type can use
3750 a bitwise copy. */
3751 #define TYPE_HAS_TRIVIAL_COPY_ASSIGN(NODE) \
3752 (TYPE_HAS_COPY_ASSIGN (NODE) && ! TYPE_HAS_COMPLEX_COPY_ASSIGN (NODE))
3754 /* Returns true if NODE is a pointer-to-data-member. */
3755 #define TYPE_PTRDATAMEM_P(NODE) \
3756 (TREE_CODE (NODE) == OFFSET_TYPE)
3757 /* Returns true if NODE is a pointer. */
3758 #define TYPE_PTR_P(NODE) \
3759 (TREE_CODE (NODE) == POINTER_TYPE)
3761 /* Returns true if NODE is an object type:
3763 [basic.types]
3765 An object type is a (possibly cv-qualified) type that is not a
3766 function type, not a reference type, and not a void type.
3768 Keep these checks in ascending order, for speed. */
3769 #define TYPE_OBJ_P(NODE) \
3770 (TREE_CODE (NODE) != REFERENCE_TYPE \
3771 && !VOID_TYPE_P (NODE) \
3772 && TREE_CODE (NODE) != FUNCTION_TYPE \
3773 && TREE_CODE (NODE) != METHOD_TYPE)
3775 /* Returns true if NODE is a pointer to an object. Keep these checks
3776 in ascending tree code order. */
3777 #define TYPE_PTROB_P(NODE) \
3778 (TYPE_PTR_P (NODE) && TYPE_OBJ_P (TREE_TYPE (NODE)))
3780 /* Returns true if NODE is a reference to an object. Keep these checks
3781 in ascending tree code order. */
3782 #define TYPE_REF_OBJ_P(NODE) \
3783 (TREE_CODE (NODE) == REFERENCE_TYPE && TYPE_OBJ_P (TREE_TYPE (NODE)))
3785 /* Returns true if NODE is a pointer to an object, or a pointer to
3786 void. Keep these checks in ascending tree code order. */
3787 #define TYPE_PTROBV_P(NODE) \
3788 (TYPE_PTR_P (NODE) \
3789 && !(TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE \
3790 || TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE))
3792 /* Returns true if NODE is a pointer to function type. */
3793 #define TYPE_PTRFN_P(NODE) \
3794 (TYPE_PTR_P (NODE) \
3795 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
3797 /* Returns true if NODE is a reference to function type. */
3798 #define TYPE_REFFN_P(NODE) \
3799 (TREE_CODE (NODE) == REFERENCE_TYPE \
3800 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
3802 /* Returns true if NODE is a pointer to member function type. */
3803 #define TYPE_PTRMEMFUNC_P(NODE) \
3804 (TREE_CODE (NODE) == RECORD_TYPE \
3805 && TYPE_PTRMEMFUNC_FLAG (NODE))
3807 #define TYPE_PTRMEMFUNC_FLAG(NODE) \
3808 (TYPE_LANG_FLAG_2 (RECORD_TYPE_CHECK (NODE)))
3810 /* Returns true if NODE is a pointer-to-member. */
3811 #define TYPE_PTRMEM_P(NODE) \
3812 (TYPE_PTRDATAMEM_P (NODE) || TYPE_PTRMEMFUNC_P (NODE))
3814 /* Returns true if NODE is a pointer or a pointer-to-member. */
3815 #define TYPE_PTR_OR_PTRMEM_P(NODE) \
3816 (TYPE_PTR_P (NODE) || TYPE_PTRMEM_P (NODE))
3818 /* Indicates when overload resolution may resolve to a pointer to
3819 member function. [expr.unary.op]/3 */
3820 #define PTRMEM_OK_P(NODE) \
3821 TREE_LANG_FLAG_0 (TREE_CHECK3 ((NODE), ADDR_EXPR, OFFSET_REF, SCOPE_REF))
3823 /* Get the POINTER_TYPE to the METHOD_TYPE associated with this
3824 pointer to member function. TYPE_PTRMEMFUNC_P _must_ be true,
3825 before using this macro. */
3826 #define TYPE_PTRMEMFUNC_FN_TYPE(NODE) \
3827 (cp_build_qualified_type (TREE_TYPE (TYPE_FIELDS (NODE)),\
3828 cp_type_quals (NODE)))
3830 /* As above, but can be used in places that want an lvalue at the expense
3831 of not necessarily having the correct cv-qualifiers. */
3832 #define TYPE_PTRMEMFUNC_FN_TYPE_RAW(NODE) \
3833 (TREE_TYPE (TYPE_FIELDS (NODE)))
3835 /* Returns `A' for a type like `int (A::*)(double)' */
3836 #define TYPE_PTRMEMFUNC_OBJECT_TYPE(NODE) \
3837 TYPE_METHOD_BASETYPE (TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
3839 /* These are use to manipulate the canonical RECORD_TYPE from the
3840 hashed POINTER_TYPE, and can only be used on the POINTER_TYPE. */
3841 #define TYPE_GET_PTRMEMFUNC_TYPE(NODE) \
3842 (TYPE_LANG_SPECIFIC (NODE) ? LANG_TYPE_PTRMEM_CHECK (NODE)->record : NULL)
3843 #define TYPE_SET_PTRMEMFUNC_TYPE(NODE, VALUE) \
3844 do { \
3845 if (TYPE_LANG_SPECIFIC (NODE) == NULL) \
3847 TYPE_LANG_SPECIFIC (NODE) \
3848 = (struct lang_type *) ggc_internal_cleared_alloc \
3849 (sizeof (struct lang_type_ptrmem)); \
3850 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.h.is_lang_type_class = 0; \
3852 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.record = (VALUE); \
3853 } while (0)
3855 /* For a pointer-to-member type of the form `T X::*', this is `X'.
3856 For a type like `void (X::*)() const', this type is `X', not `const
3857 X'. To get at the `const X' you have to look at the
3858 TYPE_PTRMEM_POINTED_TO_TYPE; there, the first parameter will have
3859 type `const X*'. */
3860 #define TYPE_PTRMEM_CLASS_TYPE(NODE) \
3861 (TYPE_PTRDATAMEM_P (NODE) \
3862 ? TYPE_OFFSET_BASETYPE (NODE) \
3863 : TYPE_PTRMEMFUNC_OBJECT_TYPE (NODE))
3865 /* For a pointer-to-member type of the form `T X::*', this is `T'. */
3866 #define TYPE_PTRMEM_POINTED_TO_TYPE(NODE) \
3867 (TYPE_PTRDATAMEM_P (NODE) \
3868 ? TREE_TYPE (NODE) \
3869 : TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
3871 /* For a pointer-to-member constant `X::Y' this is the RECORD_TYPE for
3872 `X'. */
3873 #define PTRMEM_CST_CLASS(NODE) \
3874 TYPE_PTRMEM_CLASS_TYPE (TREE_TYPE (PTRMEM_CST_CHECK (NODE)))
3876 /* For a pointer-to-member constant `X::Y' this is the _DECL for
3877 `Y'. */
3878 #define PTRMEM_CST_MEMBER(NODE) (((ptrmem_cst_t)PTRMEM_CST_CHECK (NODE))->member)
3880 /* The expression in question for a TYPEOF_TYPE. */
3881 #define TYPEOF_TYPE_EXPR(NODE) (TYPE_VALUES_RAW (TYPEOF_TYPE_CHECK (NODE)))
3883 /* The type in question for an UNDERLYING_TYPE. */
3884 #define UNDERLYING_TYPE_TYPE(NODE) \
3885 (TYPE_VALUES_RAW (UNDERLYING_TYPE_CHECK (NODE)))
3887 /* The type in question for BASES. */
3888 #define BASES_TYPE(NODE) \
3889 (TYPE_VALUES_RAW (BASES_CHECK (NODE)))
3891 #define BASES_DIRECT(NODE) \
3892 TREE_LANG_FLAG_0 (BASES_CHECK (NODE))
3894 /* The expression in question for a DECLTYPE_TYPE. */
3895 #define DECLTYPE_TYPE_EXPR(NODE) (TYPE_VALUES_RAW (DECLTYPE_TYPE_CHECK (NODE)))
3897 /* Whether the DECLTYPE_TYPE_EXPR of NODE was originally parsed as an
3898 id-expression or a member-access expression. When false, it was
3899 parsed as a full expression. */
3900 #define DECLTYPE_TYPE_ID_EXPR_OR_MEMBER_ACCESS_P(NODE) \
3901 (DECLTYPE_TYPE_CHECK (NODE))->type_common.string_flag
3903 /* These flags indicate that we want different semantics from normal
3904 decltype: lambda capture just drops references, init capture
3905 uses auto semantics, lambda proxies look through implicit dereference. */
3906 #define DECLTYPE_FOR_LAMBDA_CAPTURE(NODE) \
3907 TREE_LANG_FLAG_0 (DECLTYPE_TYPE_CHECK (NODE))
3908 #define DECLTYPE_FOR_INIT_CAPTURE(NODE) \
3909 TREE_LANG_FLAG_1 (DECLTYPE_TYPE_CHECK (NODE))
3910 #define DECLTYPE_FOR_LAMBDA_PROXY(NODE) \
3911 TREE_LANG_FLAG_2 (DECLTYPE_TYPE_CHECK (NODE))
3913 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `extern' was
3914 specified in its declaration. This can also be set for an
3915 erroneously declared PARM_DECL. */
3916 #define DECL_THIS_EXTERN(NODE) \
3917 DECL_LANG_FLAG_2 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
3919 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `static' was
3920 specified in its declaration. This can also be set for an
3921 erroneously declared PARM_DECL. */
3922 #define DECL_THIS_STATIC(NODE) \
3923 DECL_LANG_FLAG_6 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
3925 /* Nonzero for FIELD_DECL node means that this field is a lambda capture
3926 field for an array of runtime bound. */
3927 #define DECL_VLA_CAPTURE_P(NODE) \
3928 DECL_LANG_FLAG_1 (FIELD_DECL_CHECK (NODE))
3930 /* Nonzero for PARM_DECL node means that this is an array function
3931 parameter, i.e, a[] rather than *a. */
3932 #define DECL_ARRAY_PARAMETER_P(NODE) \
3933 DECL_LANG_FLAG_1 (PARM_DECL_CHECK (NODE))
3935 /* Nonzero for FIELD_DECL node means that this field is a base class
3936 of the parent object, as opposed to a member field. */
3937 #define DECL_FIELD_IS_BASE(NODE) \
3938 DECL_LANG_FLAG_6 (FIELD_DECL_CHECK (NODE))
3940 /* Nonzero for FIELD_DECL node means that this field is a simple (no
3941 explicit initializer) lambda capture field, making it invisible to
3942 name lookup in unevaluated contexts. */
3943 #define DECL_NORMAL_CAPTURE_P(NODE) \
3944 DECL_LANG_FLAG_7 (FIELD_DECL_CHECK (NODE))
3946 /* Nonzero if TYPE is an anonymous union or struct type. We have to use a
3947 flag for this because "A union for which objects or pointers are
3948 declared is not an anonymous union" [class.union]. */
3949 #define ANON_AGGR_TYPE_P(NODE) \
3950 (CLASS_TYPE_P (NODE) && LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr)
3951 #define SET_ANON_AGGR_TYPE_P(NODE) \
3952 (LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr = 1)
3954 /* Nonzero if TYPE is an anonymous union type. */
3955 #define ANON_UNION_TYPE_P(NODE) \
3956 (TREE_CODE (NODE) == UNION_TYPE && ANON_AGGR_TYPE_P (NODE))
3958 /* Define fields and accessors for nodes representing declared names. */
3960 #define TYPE_WAS_ANONYMOUS(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->was_anonymous)
3962 /* C++: all of these are overloaded! These apply only to TYPE_DECLs. */
3964 /* The format of each node in the DECL_FRIENDLIST is as follows:
3966 The TREE_PURPOSE will be the name of a function, i.e., an
3967 IDENTIFIER_NODE. The TREE_VALUE will be itself a TREE_LIST, whose
3968 TREE_VALUEs are friends with the given name. */
3969 #define DECL_FRIENDLIST(NODE) (DECL_INITIAL (NODE))
3970 #define FRIEND_NAME(LIST) (TREE_PURPOSE (LIST))
3971 #define FRIEND_DECLS(LIST) (TREE_VALUE (LIST))
3973 /* The DECL_ACCESS, if non-NULL, is a TREE_LIST. The TREE_PURPOSE of
3974 each node is a type; the TREE_VALUE is the access granted for this
3975 DECL in that type. The DECL_ACCESS is set by access declarations.
3976 For example, if a member that would normally be public in a
3977 derived class is made protected, then the derived class and the
3978 protected_access_node will appear in the DECL_ACCESS for the node. */
3979 #define DECL_ACCESS(NODE) (LANG_DECL_U2_CHECK (NODE, 0)->access)
3981 /* Nonzero if the FUNCTION_DECL is a global constructor. */
3982 #define DECL_GLOBAL_CTOR_P(NODE) \
3983 (LANG_DECL_FN_CHECK (NODE)->global_ctor_p)
3985 /* Nonzero if the FUNCTION_DECL is a global destructor. */
3986 #define DECL_GLOBAL_DTOR_P(NODE) \
3987 (LANG_DECL_FN_CHECK (NODE)->global_dtor_p)
3989 /* Accessor macros for C++ template decl nodes. */
3991 /* The DECL_TEMPLATE_PARMS are a list. The TREE_PURPOSE of each node
3992 is a INT_CST whose TREE_INT_CST_LOW indicates the level of the
3993 template parameters, with 1 being the outermost set of template
3994 parameters. The TREE_VALUE is a vector, whose elements are the
3995 template parameters at each level. Each element in the vector is a
3996 TREE_LIST, whose TREE_VALUE is a PARM_DECL (if the parameter is a
3997 non-type parameter), or a TYPE_DECL (if the parameter is a type
3998 parameter). The TREE_PURPOSE is the default value, if any. The
3999 TEMPLATE_PARM_INDEX for the parameter is available as the
4000 DECL_INITIAL (for a PARM_DECL) or as the TREE_TYPE (for a
4001 TYPE_DECL).
4003 FIXME: CONST_CAST_TREE is a hack that hopefully will go away after
4004 tree is converted to C++ class hiearchy. */
4005 #define DECL_TEMPLATE_PARMS(NODE) \
4006 ((struct tree_template_decl *)CONST_CAST_TREE (TEMPLATE_DECL_CHECK (NODE)))->arguments
4007 #define DECL_INNERMOST_TEMPLATE_PARMS(NODE) \
4008 INNERMOST_TEMPLATE_PARMS (DECL_TEMPLATE_PARMS (NODE))
4009 #define DECL_NTPARMS(NODE) \
4010 TREE_VEC_LENGTH (DECL_INNERMOST_TEMPLATE_PARMS (NODE))
4011 /* For function, method, class-data templates.
4013 FIXME: CONST_CAST_TREE is a hack that hopefully will go away after
4014 tree is converted to C++ class hiearchy. */
4015 #define DECL_TEMPLATE_RESULT(NODE) \
4016 ((struct tree_template_decl *)CONST_CAST_TREE(TEMPLATE_DECL_CHECK (NODE)))->result
4017 /* For a function template at namespace scope, DECL_TEMPLATE_INSTANTIATIONS
4018 lists all instantiations and specializations of the function so that
4019 tsubst_friend_function can reassign them to another template if we find
4020 that the namespace-scope template is really a partial instantiation of a
4021 friend template.
4023 For a class template the DECL_TEMPLATE_INSTANTIATIONS lists holds
4024 all instantiations and specializations of the class type, including
4025 partial instantiations and partial specializations, so that if we
4026 explicitly specialize a partial instantiation we can walk the list
4027 in maybe_process_partial_specialization and reassign them or complain
4028 as appropriate.
4030 In both cases, the TREE_PURPOSE of each node contains the arguments
4031 used; the TREE_VALUE contains the generated variable. The template
4032 arguments are always complete. For example, given:
4034 template <class T> struct S1 {
4035 template <class U> struct S2 {};
4036 template <class U> struct S2<U*> {};
4039 the record for the partial specialization will contain, as its
4040 argument list, { {T}, {U*} }, and will be on the
4041 DECL_TEMPLATE_INSTANTIATIONS list for `template <class T> template
4042 <class U> struct S1<T>::S2'.
4044 This list is not used for other templates. */
4045 #define DECL_TEMPLATE_INSTANTIATIONS(NODE) \
4046 DECL_SIZE_UNIT (TEMPLATE_DECL_CHECK (NODE))
4048 /* For a class template, this list contains the partial
4049 specializations of this template. (Full specializations are not
4050 recorded on this list.) The TREE_PURPOSE holds the arguments used
4051 in the partial specialization (e.g., for `template <class T> struct
4052 S<T*, int>' this will be `T*, int'.) The arguments will also include
4053 any outer template arguments. The TREE_VALUE holds the TEMPLATE_DECL
4054 for the partial specialization. The TREE_TYPE is the _TYPE node for
4055 the partial specialization.
4057 This list is not used for other templates. */
4058 #define DECL_TEMPLATE_SPECIALIZATIONS(NODE) \
4059 DECL_SIZE (TEMPLATE_DECL_CHECK (NODE))
4061 /* Nonzero for a DECL which is actually a template parameter. Keep
4062 these checks in ascending tree code order. */
4063 #define DECL_TEMPLATE_PARM_P(NODE) \
4064 (DECL_LANG_FLAG_0 (NODE) \
4065 && (TREE_CODE (NODE) == CONST_DECL \
4066 || TREE_CODE (NODE) == PARM_DECL \
4067 || TREE_CODE (NODE) == TYPE_DECL \
4068 || TREE_CODE (NODE) == TEMPLATE_DECL))
4070 /* Mark NODE as a template parameter. */
4071 #define SET_DECL_TEMPLATE_PARM_P(NODE) \
4072 (DECL_LANG_FLAG_0 (NODE) = 1)
4074 /* Nonzero if NODE is a template template parameter. */
4075 #define DECL_TEMPLATE_TEMPLATE_PARM_P(NODE) \
4076 (TREE_CODE (NODE) == TEMPLATE_DECL && DECL_TEMPLATE_PARM_P (NODE))
4078 /* Nonzero for a DECL that represents a function template. */
4079 #define DECL_FUNCTION_TEMPLATE_P(NODE) \
4080 (TREE_CODE (NODE) == TEMPLATE_DECL \
4081 && DECL_TEMPLATE_RESULT (NODE) != NULL_TREE \
4082 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == FUNCTION_DECL)
4084 /* Nonzero for a DECL that represents a class template or alias
4085 template. */
4086 #define DECL_TYPE_TEMPLATE_P(NODE) \
4087 (TREE_CODE (NODE) == TEMPLATE_DECL \
4088 && DECL_TEMPLATE_RESULT (NODE) != NULL_TREE \
4089 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == TYPE_DECL)
4091 /* Nonzero for a DECL that represents a class template. */
4092 #define DECL_CLASS_TEMPLATE_P(NODE) \
4093 (DECL_TYPE_TEMPLATE_P (NODE) \
4094 && DECL_IMPLICIT_TYPEDEF_P (DECL_TEMPLATE_RESULT (NODE)))
4096 /* Nonzero for a TEMPLATE_DECL that represents an alias template. */
4097 #define DECL_ALIAS_TEMPLATE_P(NODE) \
4098 (DECL_TYPE_TEMPLATE_P (NODE) \
4099 && !DECL_ARTIFICIAL (DECL_TEMPLATE_RESULT (NODE)))
4101 /* Nonzero for a NODE which declares a type. */
4102 #define DECL_DECLARES_TYPE_P(NODE) \
4103 (TREE_CODE (NODE) == TYPE_DECL || DECL_TYPE_TEMPLATE_P (NODE))
4105 /* Nonzero if NODE declares a function. */
4106 #define DECL_DECLARES_FUNCTION_P(NODE) \
4107 (TREE_CODE (NODE) == FUNCTION_DECL || DECL_FUNCTION_TEMPLATE_P (NODE))
4109 /* Nonzero if NODE is the typedef implicitly generated for a type when
4110 the type is declared. In C++, `struct S {};' is roughly
4111 equivalent to `struct S {}; typedef struct S S;' in C.
4112 DECL_IMPLICIT_TYPEDEF_P will hold for the typedef indicated in this
4113 example. In C++, there is a second implicit typedef for each
4114 class, in the scope of `S' itself, so that you can say `S::S'.
4115 DECL_SELF_REFERENCE_P will hold for that second typedef. */
4116 #define DECL_IMPLICIT_TYPEDEF_P(NODE) \
4117 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_2 (NODE))
4118 #define SET_DECL_IMPLICIT_TYPEDEF_P(NODE) \
4119 (DECL_LANG_FLAG_2 (NODE) = 1)
4120 #define DECL_SELF_REFERENCE_P(NODE) \
4121 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_4 (NODE))
4122 #define SET_DECL_SELF_REFERENCE_P(NODE) \
4123 (DECL_LANG_FLAG_4 (NODE) = 1)
4125 /* A `primary' template is one that has its own template header and is not
4126 a partial specialization. A member function of a class template is a
4127 template, but not primary. A member template is primary. Friend
4128 templates are primary, too. */
4130 /* Returns the primary template corresponding to these parameters. */
4131 #define DECL_PRIMARY_TEMPLATE(NODE) \
4132 (TREE_TYPE (DECL_INNERMOST_TEMPLATE_PARMS (NODE)))
4134 /* Returns nonzero if NODE is a primary template. */
4135 #define PRIMARY_TEMPLATE_P(NODE) (DECL_PRIMARY_TEMPLATE (NODE) == (NODE))
4137 /* Nonzero iff NODE is a specialization of a template. The value
4138 indicates the type of specializations:
4140 1=implicit instantiation
4142 2=partial or explicit specialization, e.g.:
4144 template <> int min<int> (int, int),
4146 3=explicit instantiation, e.g.:
4148 template int min<int> (int, int);
4150 Note that NODE will be marked as a specialization even if the
4151 template it is instantiating is not a primary template. For
4152 example, given:
4154 template <typename T> struct O {
4155 void f();
4156 struct I {};
4159 both O<int>::f and O<int>::I will be marked as instantiations.
4161 If DECL_USE_TEMPLATE is nonzero, then DECL_TEMPLATE_INFO will also
4162 be non-NULL. */
4163 #define DECL_USE_TEMPLATE(NODE) (DECL_LANG_SPECIFIC (NODE)->u.base.use_template)
4165 /* Like DECL_USE_TEMPLATE, but for class types. */
4166 #define CLASSTYPE_USE_TEMPLATE(NODE) \
4167 (LANG_TYPE_CLASS_CHECK (NODE)->use_template)
4169 /* True if NODE is a specialization of a primary template. */
4170 #define CLASSTYPE_SPECIALIZATION_OF_PRIMARY_TEMPLATE_P(NODE) \
4171 (CLASS_TYPE_P (NODE) \
4172 && CLASSTYPE_USE_TEMPLATE (NODE) \
4173 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE)))
4175 #define DECL_TEMPLATE_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) & 1)
4176 #define CLASSTYPE_TEMPLATE_INSTANTIATION(NODE) \
4177 (CLASSTYPE_USE_TEMPLATE (NODE) & 1)
4179 #define DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) == 2)
4180 #define SET_DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) = 2)
4182 /* Returns true for an explicit or partial specialization of a class
4183 template. */
4184 #define CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
4185 (CLASSTYPE_USE_TEMPLATE (NODE) == 2)
4186 #define SET_CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
4187 (CLASSTYPE_USE_TEMPLATE (NODE) = 2)
4189 #define DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 1)
4190 #define SET_DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 1)
4191 #define CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
4192 (CLASSTYPE_USE_TEMPLATE (NODE) == 1)
4193 #define SET_CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
4194 (CLASSTYPE_USE_TEMPLATE (NODE) = 1)
4196 #define DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 3)
4197 #define SET_DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 3)
4198 #define CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
4199 (CLASSTYPE_USE_TEMPLATE (NODE) == 3)
4200 #define SET_CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
4201 (CLASSTYPE_USE_TEMPLATE (NODE) = 3)
4203 /* Nonzero if DECL is a friend function which is an instantiation
4204 from the point of view of the compiler, but not from the point of
4205 view of the language. For example given:
4206 template <class T> struct S { friend void f(T) {}; };
4207 the declaration of `void f(int)' generated when S<int> is
4208 instantiated will not be a DECL_TEMPLATE_INSTANTIATION, but will be
4209 a DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION. */
4210 #define DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION(DECL) \
4211 (DECL_TEMPLATE_INFO (DECL) && !DECL_USE_TEMPLATE (DECL))
4213 /* Nonzero if DECL is a function generated from a function 'temploid',
4214 i.e. template, member of class template, or dependent friend. */
4215 #define DECL_TEMPLOID_INSTANTIATION(DECL) \
4216 (DECL_TEMPLATE_INSTANTIATION (DECL) \
4217 || DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (DECL))
4219 /* Nonzero if DECL is either defined implicitly by the compiler or
4220 generated from a temploid. */
4221 #define DECL_GENERATED_P(DECL) \
4222 (DECL_TEMPLOID_INSTANTIATION (DECL) || DECL_DEFAULTED_FN (DECL))
4224 /* Nonzero iff we are currently processing a declaration for an
4225 entity with its own template parameter list, and which is not a
4226 full specialization. */
4227 #define PROCESSING_REAL_TEMPLATE_DECL_P() \
4228 (processing_template_decl > template_class_depth (current_scope ()))
4230 /* Nonzero if this VAR_DECL or FUNCTION_DECL has already been
4231 instantiated, i.e. its definition has been generated from the
4232 pattern given in the template. */
4233 #define DECL_TEMPLATE_INSTANTIATED(NODE) \
4234 DECL_LANG_FLAG_1 (VAR_OR_FUNCTION_DECL_CHECK (NODE))
4236 /* We know what we're doing with this decl now. */
4237 #define DECL_INTERFACE_KNOWN(NODE) DECL_LANG_FLAG_5 (NODE)
4239 /* DECL_EXTERNAL must be set on a decl until the decl is actually emitted,
4240 so that assemble_external will work properly. So we have this flag to
4241 tell us whether the decl is really not external.
4243 This flag does not indicate whether or not the decl is defined in the
4244 current translation unit; it indicates whether or not we should emit the
4245 decl at the end of compilation if it is defined and needed. */
4246 #define DECL_NOT_REALLY_EXTERN(NODE) \
4247 (DECL_LANG_SPECIFIC (NODE)->u.base.not_really_extern)
4249 #define DECL_REALLY_EXTERN(NODE) \
4250 (DECL_EXTERNAL (NODE) && ! DECL_NOT_REALLY_EXTERN (NODE))
4252 /* A thunk is a stub function.
4254 A thunk is an alternate entry point for an ordinary FUNCTION_DECL.
4255 The address of the ordinary FUNCTION_DECL is given by the
4256 DECL_INITIAL, which is always an ADDR_EXPR whose operand is a
4257 FUNCTION_DECL. The job of the thunk is to either adjust the this
4258 pointer before transferring control to the FUNCTION_DECL, or call
4259 FUNCTION_DECL and then adjust the result value. Note, the result
4260 pointer adjusting thunk must perform a call to the thunked
4261 function, (or be implemented via passing some invisible parameter
4262 to the thunked function, which is modified to perform the
4263 adjustment just before returning).
4265 A thunk may perform either, or both, of the following operations:
4267 o Adjust the this or result pointer by a constant offset.
4268 o Adjust the this or result pointer by looking up a vcall or vbase offset
4269 in the vtable.
4271 A this pointer adjusting thunk converts from a base to a derived
4272 class, and hence adds the offsets. A result pointer adjusting thunk
4273 converts from a derived class to a base, and hence subtracts the
4274 offsets. If both operations are performed, then the constant
4275 adjustment is performed first for this pointer adjustment and last
4276 for the result pointer adjustment.
4278 The constant adjustment is given by THUNK_FIXED_OFFSET. If the
4279 vcall or vbase offset is required, THUNK_VIRTUAL_OFFSET is
4280 used. For this pointer adjusting thunks, it is the vcall offset
4281 into the vtable. For result pointer adjusting thunks it is the
4282 binfo of the virtual base to convert to. Use that binfo's vbase
4283 offset.
4285 It is possible to have equivalent covariant thunks. These are
4286 distinct virtual covariant thunks whose vbase offsets happen to
4287 have the same value. THUNK_ALIAS is used to pick one as the
4288 canonical thunk, which will get all the this pointer adjusting
4289 thunks attached to it. */
4291 /* An integer indicating how many bytes should be subtracted from the
4292 this or result pointer when this function is called. */
4293 #define THUNK_FIXED_OFFSET(DECL) \
4294 (DECL_LANG_SPECIFIC (THUNK_FUNCTION_CHECK (DECL))->u.fn.u5.fixed_offset)
4296 /* A tree indicating how to perform the virtual adjustment. For a this
4297 adjusting thunk it is the number of bytes to be added to the vtable
4298 to find the vcall offset. For a result adjusting thunk, it is the
4299 binfo of the relevant virtual base. If NULL, then there is no
4300 virtual adjust. (The vptr is always located at offset zero from
4301 the this or result pointer.) (If the covariant type is within the
4302 class hierarchy being laid out, the vbase index is not yet known
4303 at the point we need to create the thunks, hence the need to use
4304 binfos.) */
4306 #define THUNK_VIRTUAL_OFFSET(DECL) \
4307 (LANG_DECL_U2_CHECK (FUNCTION_DECL_CHECK (DECL), 0)->access)
4309 /* A thunk which is equivalent to another thunk. */
4310 #define THUNK_ALIAS(DECL) \
4311 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->u.min.template_info)
4313 /* For thunk NODE, this is the FUNCTION_DECL thunked to. It is
4314 possible for the target to be a thunk too. */
4315 #define THUNK_TARGET(NODE) \
4316 (LANG_DECL_FN_CHECK (NODE)->befriending_classes)
4318 /* True for a SCOPE_REF iff the "template" keyword was used to
4319 indicate that the qualified name denotes a template. */
4320 #define QUALIFIED_NAME_IS_TEMPLATE(NODE) \
4321 (TREE_LANG_FLAG_1 (SCOPE_REF_CHECK (NODE)))
4323 /* True for an OMP_ATOMIC that has dependent parameters. These are stored
4324 as an expr in operand 1, and integer_zero_node in operand 0. */
4325 #define OMP_ATOMIC_DEPENDENT_P(NODE) \
4326 (TREE_CODE (TREE_OPERAND (OMP_ATOMIC_CHECK (NODE), 0)) == INTEGER_CST)
4328 /* Used while gimplifying continue statements bound to OMP_FOR nodes. */
4329 #define OMP_FOR_GIMPLIFYING_P(NODE) \
4330 (TREE_LANG_FLAG_0 (OMP_LOOP_CHECK (NODE)))
4332 /* A language-specific token attached to the OpenMP data clauses to
4333 hold code (or code fragments) related to ctors, dtors, and op=.
4334 See semantics.c for details. */
4335 #define CP_OMP_CLAUSE_INFO(NODE) \
4336 TREE_TYPE (OMP_CLAUSE_RANGE_CHECK (NODE, OMP_CLAUSE_PRIVATE, \
4337 OMP_CLAUSE_LINEAR))
4339 /* Nonzero if this transaction expression's body contains statements. */
4340 #define TRANSACTION_EXPR_IS_STMT(NODE) \
4341 TREE_LANG_FLAG_0 (TRANSACTION_EXPR_CHECK (NODE))
4343 /* These macros provide convenient access to the various _STMT nodes
4344 created when parsing template declarations. */
4345 #define TRY_STMTS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 0)
4346 #define TRY_HANDLERS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 1)
4348 #define EH_SPEC_STMTS(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 0)
4349 #define EH_SPEC_RAISES(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 1)
4351 #define USING_STMT_NAMESPACE(NODE) TREE_OPERAND (USING_STMT_CHECK (NODE), 0)
4353 /* Nonzero if this try block is a function try block. */
4354 #define FN_TRY_BLOCK_P(NODE) TREE_LANG_FLAG_3 (TRY_BLOCK_CHECK (NODE))
4355 #define HANDLER_PARMS(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 0)
4356 #define HANDLER_BODY(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 1)
4357 #define HANDLER_TYPE(NODE) TREE_TYPE (HANDLER_CHECK (NODE))
4359 /* CLEANUP_STMT accessors. The statement(s) covered, the cleanup to run
4360 and the VAR_DECL for which this cleanup exists. */
4361 #define CLEANUP_BODY(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 0)
4362 #define CLEANUP_EXPR(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 1)
4363 #define CLEANUP_DECL(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 2)
4365 /* IF_STMT accessors. These give access to the condition of the if
4366 statement, the then block of the if statement, and the else block
4367 of the if statement if it exists. */
4368 #define IF_COND(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 0)
4369 #define THEN_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 1)
4370 #define ELSE_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 2)
4371 #define IF_SCOPE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 3)
4373 /* WHILE_STMT accessors. These give access to the condition of the
4374 while statement and the body of the while statement, respectively. */
4375 #define WHILE_COND(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 0)
4376 #define WHILE_BODY(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 1)
4378 /* DO_STMT accessors. These give access to the condition of the do
4379 statement and the body of the do statement, respectively. */
4380 #define DO_COND(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 0)
4381 #define DO_BODY(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 1)
4383 /* FOR_STMT accessors. These give access to the init statement,
4384 condition, update expression, and body of the for statement,
4385 respectively. */
4386 #define FOR_INIT_STMT(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 0)
4387 #define FOR_COND(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 1)
4388 #define FOR_EXPR(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 2)
4389 #define FOR_BODY(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 3)
4390 #define FOR_SCOPE(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 4)
4392 /* RANGE_FOR_STMT accessors. These give access to the declarator,
4393 expression, body, and scope of the statement, respectively. */
4394 #define RANGE_FOR_DECL(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 0)
4395 #define RANGE_FOR_EXPR(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 1)
4396 #define RANGE_FOR_BODY(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 2)
4397 #define RANGE_FOR_SCOPE(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 3)
4398 #define RANGE_FOR_IVDEP(NODE) TREE_LANG_FLAG_6 (RANGE_FOR_STMT_CHECK (NODE))
4400 #define SWITCH_STMT_COND(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 0)
4401 #define SWITCH_STMT_BODY(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 1)
4402 #define SWITCH_STMT_TYPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 2)
4403 #define SWITCH_STMT_SCOPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 3)
4405 /* STMT_EXPR accessor. */
4406 #define STMT_EXPR_STMT(NODE) TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0)
4408 /* EXPR_STMT accessor. This gives the expression associated with an
4409 expression statement. */
4410 #define EXPR_STMT_EXPR(NODE) TREE_OPERAND (EXPR_STMT_CHECK (NODE), 0)
4412 /* True if this TARGET_EXPR was created by build_cplus_new, and so we can
4413 discard it if it isn't useful. */
4414 #define TARGET_EXPR_IMPLICIT_P(NODE) \
4415 TREE_LANG_FLAG_0 (TARGET_EXPR_CHECK (NODE))
4417 /* True if this TARGET_EXPR is the result of list-initialization of a
4418 temporary. */
4419 #define TARGET_EXPR_LIST_INIT_P(NODE) \
4420 TREE_LANG_FLAG_1 (TARGET_EXPR_CHECK (NODE))
4422 /* True if this TARGET_EXPR expresses direct-initialization of an object
4423 to be named later. */
4424 #define TARGET_EXPR_DIRECT_INIT_P(NODE) \
4425 TREE_LANG_FLAG_2 (TARGET_EXPR_CHECK (NODE))
4427 /* True if EXPR expresses direct-initialization of a TYPE. */
4428 #define DIRECT_INIT_EXPR_P(TYPE,EXPR) \
4429 (TREE_CODE (EXPR) == TARGET_EXPR && TREE_LANG_FLAG_2 (EXPR) \
4430 && same_type_ignoring_top_level_qualifiers_p (TYPE, TREE_TYPE (EXPR)))
4432 /* True if this CONVERT_EXPR is for a conversion to virtual base in
4433 an NSDMI, and should be re-evaluated when used in a constructor. */
4434 #define CONVERT_EXPR_VBASE_PATH(NODE) \
4435 TREE_LANG_FLAG_0 (CONVERT_EXPR_CHECK (NODE))
4437 /* True if SIZEOF_EXPR argument is type. */
4438 #define SIZEOF_EXPR_TYPE_P(NODE) \
4439 TREE_LANG_FLAG_0 (SIZEOF_EXPR_CHECK (NODE))
4441 /* True if INTEGER_CST is a zero literal seen in function argument list. */
4442 #define LITERAL_ZERO_P(NODE) \
4443 (INTEGER_CST_CHECK (NODE)->base.nothrow_flag)
4445 /* An enumeration of the kind of tags that C++ accepts. */
4446 enum tag_types {
4447 none_type = 0, /* Not a tag type. */
4448 record_type, /* "struct" types. */
4449 class_type, /* "class" types. */
4450 union_type, /* "union" types. */
4451 enum_type, /* "enum" types. */
4452 typename_type /* "typename" types. */
4455 /* The various kinds of lvalues we distinguish. */
4456 enum cp_lvalue_kind_flags {
4457 clk_none = 0, /* Things that are not an lvalue. */
4458 clk_ordinary = 1, /* An ordinary lvalue. */
4459 clk_rvalueref = 2,/* An xvalue (rvalue formed using an rvalue reference) */
4460 clk_class = 4, /* A prvalue of class-type. */
4461 clk_bitfield = 8, /* An lvalue for a bit-field. */
4462 clk_packed = 16 /* An lvalue for a packed field. */
4465 /* This type is used for parameters and variables which hold
4466 combinations of the flags in enum cp_lvalue_kind_flags. */
4467 typedef int cp_lvalue_kind;
4469 /* Various kinds of template specialization, instantiation, etc. */
4470 typedef enum tmpl_spec_kind {
4471 tsk_none, /* Not a template at all. */
4472 tsk_invalid_member_spec, /* An explicit member template
4473 specialization, but the enclosing
4474 classes have not all been explicitly
4475 specialized. */
4476 tsk_invalid_expl_inst, /* An explicit instantiation containing
4477 template parameter lists. */
4478 tsk_excessive_parms, /* A template declaration with too many
4479 template parameter lists. */
4480 tsk_insufficient_parms, /* A template declaration with too few
4481 parameter lists. */
4482 tsk_template, /* A template declaration. */
4483 tsk_expl_spec, /* An explicit specialization. */
4484 tsk_expl_inst /* An explicit instantiation. */
4485 } tmpl_spec_kind;
4487 /* The various kinds of access. BINFO_ACCESS depends on these being
4488 two bit quantities. The numerical values are important; they are
4489 used to initialize RTTI data structures, so changing them changes
4490 the ABI. */
4491 typedef enum access_kind {
4492 ak_none = 0, /* Inaccessible. */
4493 ak_public = 1, /* Accessible, as a `public' thing. */
4494 ak_protected = 2, /* Accessible, as a `protected' thing. */
4495 ak_private = 3 /* Accessible, as a `private' thing. */
4496 } access_kind;
4498 /* The various kinds of special functions. If you add to this list,
4499 you should update special_function_p as well. */
4500 typedef enum special_function_kind {
4501 sfk_none = 0, /* Not a special function. This enumeral
4502 must have value zero; see
4503 special_function_p. */
4504 sfk_constructor, /* A constructor. */
4505 sfk_copy_constructor, /* A copy constructor. */
4506 sfk_move_constructor, /* A move constructor. */
4507 sfk_copy_assignment, /* A copy assignment operator. */
4508 sfk_move_assignment, /* A move assignment operator. */
4509 sfk_destructor, /* A destructor. */
4510 sfk_complete_destructor, /* A destructor for complete objects. */
4511 sfk_base_destructor, /* A destructor for base subobjects. */
4512 sfk_deleting_destructor, /* A destructor for complete objects that
4513 deletes the object after it has been
4514 destroyed. */
4515 sfk_conversion, /* A conversion operator. */
4516 sfk_inheriting_constructor /* An inheriting constructor */
4517 } special_function_kind;
4519 /* The various kinds of linkage. From [basic.link],
4521 A name is said to have linkage when it might denote the same
4522 object, reference, function, type, template, namespace or value
4523 as a name introduced in another scope:
4525 -- When a name has external linkage, the entity it denotes can
4526 be referred to from scopes of other translation units or from
4527 other scopes of the same translation unit.
4529 -- When a name has internal linkage, the entity it denotes can
4530 be referred to by names from other scopes in the same
4531 translation unit.
4533 -- When a name has no linkage, the entity it denotes cannot be
4534 referred to by names from other scopes. */
4536 typedef enum linkage_kind {
4537 lk_none, /* No linkage. */
4538 lk_internal, /* Internal linkage. */
4539 lk_external /* External linkage. */
4540 } linkage_kind;
4542 typedef enum duration_kind {
4543 dk_static,
4544 dk_thread,
4545 dk_auto,
4546 dk_dynamic
4547 } duration_kind;
4549 /* Bitmask flags to control type substitution. */
4550 enum tsubst_flags {
4551 tf_none = 0, /* nothing special */
4552 tf_error = 1 << 0, /* give error messages */
4553 tf_warning = 1 << 1, /* give warnings too */
4554 tf_ignore_bad_quals = 1 << 2, /* ignore bad cvr qualifiers */
4555 tf_keep_type_decl = 1 << 3, /* retain typedef type decls
4556 (make_typename_type use) */
4557 tf_ptrmem_ok = 1 << 4, /* pointers to member ok (internal
4558 instantiate_type use) */
4559 tf_user = 1 << 5, /* found template must be a user template
4560 (lookup_template_class use) */
4561 tf_conv = 1 << 6, /* We are determining what kind of
4562 conversion might be permissible,
4563 not actually performing the
4564 conversion. */
4565 tf_decltype = 1 << 7, /* We are the operand of decltype.
4566 Used to implement the special rules
4567 for calls in decltype (5.2.2/11). */
4568 tf_partial = 1 << 8, /* Doing initial explicit argument
4569 substitution in fn_type_unification. */
4570 /* Convenient substitution flags combinations. */
4571 tf_warning_or_error = tf_warning | tf_error
4574 /* This type is used for parameters and variables which hold
4575 combinations of the flags in enum tsubst_flags. */
4576 typedef int tsubst_flags_t;
4578 /* The kind of checking we can do looking in a class hierarchy. */
4579 enum base_access_flags {
4580 ba_any = 0, /* Do not check access, allow an ambiguous base,
4581 prefer a non-virtual base */
4582 ba_unique = 1 << 0, /* Must be a unique base. */
4583 ba_check_bit = 1 << 1, /* Check access. */
4584 ba_check = ba_unique | ba_check_bit,
4585 ba_ignore_scope = 1 << 2 /* Ignore access allowed by local scope. */
4588 /* This type is used for parameters and variables which hold
4589 combinations of the flags in enum base_access_flags. */
4590 typedef int base_access;
4592 /* The various kinds of access check during parsing. */
4593 typedef enum deferring_kind {
4594 dk_no_deferred = 0, /* Check access immediately */
4595 dk_deferred = 1, /* Deferred check */
4596 dk_no_check = 2 /* No access check */
4597 } deferring_kind;
4599 /* The kind of base we can find, looking in a class hierarchy.
4600 Values <0 indicate we failed. */
4601 typedef enum base_kind {
4602 bk_inaccessible = -3, /* The base is inaccessible */
4603 bk_ambig = -2, /* The base is ambiguous */
4604 bk_not_base = -1, /* It is not a base */
4605 bk_same_type = 0, /* It is the same type */
4606 bk_proper_base = 1, /* It is a proper base */
4607 bk_via_virtual = 2 /* It is a proper base, but via a virtual
4608 path. This might not be the canonical
4609 binfo. */
4610 } base_kind;
4612 /* Node for "pointer to (virtual) function".
4613 This may be distinct from ptr_type_node so gdb can distinguish them. */
4614 #define vfunc_ptr_type_node vtable_entry_type
4617 /* For building calls to `delete'. */
4618 extern GTY(()) tree integer_two_node;
4620 /* The number of function bodies which we are currently processing.
4621 (Zero if we are at namespace scope, one inside the body of a
4622 function, two inside the body of a function in a local class, etc.) */
4623 extern int function_depth;
4625 /* Nonzero if we are inside eq_specializations, which affects comparison of
4626 PARM_DECLs in cp_tree_equal. */
4627 extern int comparing_specializations;
4629 /* In parser.c. */
4631 /* Nonzero if we are parsing an unevaluated operand: an operand to
4632 sizeof, typeof, or alignof. This is a count since operands to
4633 sizeof can be nested. */
4635 extern int cp_unevaluated_operand;
4637 /* RAII class used to inhibit the evaluation of operands during parsing
4638 and template instantiation. Evaluation warnings are also inhibited. */
4640 class cp_unevaluated
4642 public:
4643 cp_unevaluated ();
4644 ~cp_unevaluated ();
4647 /* in pt.c */
4649 /* These values are used for the `STRICT' parameter to type_unification and
4650 fn_type_unification. Their meanings are described with the
4651 documentation for fn_type_unification. */
4653 typedef enum unification_kind_t {
4654 DEDUCE_CALL,
4655 DEDUCE_CONV,
4656 DEDUCE_EXACT
4657 } unification_kind_t;
4659 // An RAII class used to create a new pointer map for local
4660 // specializations. When the stack goes out of scope, the
4661 // previous pointer map is restored.
4662 class local_specialization_stack
4664 public:
4665 local_specialization_stack ();
4666 ~local_specialization_stack ();
4668 hash_map<tree, tree> *saved;
4671 /* in class.c */
4673 extern int current_class_depth;
4675 /* An array of all local classes present in this translation unit, in
4676 declaration order. */
4677 extern GTY(()) vec<tree, va_gc> *local_classes;
4679 /* Here's where we control how name mangling takes place. */
4681 /* Cannot use '$' up front, because this confuses gdb
4682 (names beginning with '$' are gdb-local identifiers).
4684 Note that all forms in which the '$' is significant are long enough
4685 for direct indexing (meaning that if we know there is a '$'
4686 at a particular location, we can index into the string at
4687 any other location that provides distinguishing characters). */
4689 /* Define NO_DOT_IN_LABEL in your favorite tm file if your assembler
4690 doesn't allow '.' in symbol names. */
4691 #ifndef NO_DOT_IN_LABEL
4693 #define JOINER '.'
4695 #define AUTO_TEMP_NAME "_.tmp_"
4696 #define VFIELD_BASE ".vf"
4697 #define VFIELD_NAME "_vptr."
4698 #define VFIELD_NAME_FORMAT "_vptr.%s"
4700 #else /* NO_DOT_IN_LABEL */
4702 #ifndef NO_DOLLAR_IN_LABEL
4704 #define JOINER '$'
4706 #define AUTO_TEMP_NAME "_$tmp_"
4707 #define VFIELD_BASE "$vf"
4708 #define VFIELD_NAME "_vptr$"
4709 #define VFIELD_NAME_FORMAT "_vptr$%s"
4711 #else /* NO_DOLLAR_IN_LABEL */
4713 #define AUTO_TEMP_NAME "__tmp_"
4714 #define TEMP_NAME_P(ID_NODE) \
4715 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, \
4716 sizeof (AUTO_TEMP_NAME) - 1))
4717 #define VTABLE_NAME "__vt_"
4718 #define VTABLE_NAME_P(ID_NODE) \
4719 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VTABLE_NAME, \
4720 sizeof (VTABLE_NAME) - 1))
4721 #define VFIELD_BASE "__vfb"
4722 #define VFIELD_NAME "__vptr_"
4723 #define VFIELD_NAME_P(ID_NODE) \
4724 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, \
4725 sizeof (VFIELD_NAME) - 1))
4726 #define VFIELD_NAME_FORMAT "__vptr_%s"
4728 #endif /* NO_DOLLAR_IN_LABEL */
4729 #endif /* NO_DOT_IN_LABEL */
4731 #define THIS_NAME "this"
4733 #define IN_CHARGE_NAME "__in_chrg"
4735 #define VTBL_PTR_TYPE "__vtbl_ptr_type"
4736 #define VTABLE_DELTA_NAME "__delta"
4737 #define VTABLE_PFN_NAME "__pfn"
4739 #define LAMBDANAME_PREFIX "__lambda"
4740 #define LAMBDANAME_FORMAT LAMBDANAME_PREFIX "%d"
4742 #define UDLIT_OP_ANSI_PREFIX "operator\"\""
4743 #define UDLIT_OP_ANSI_FORMAT UDLIT_OP_ANSI_PREFIX "%s"
4744 #define UDLIT_OP_MANGLED_PREFIX "li"
4745 #define UDLIT_OP_MANGLED_FORMAT UDLIT_OP_MANGLED_PREFIX "%s"
4746 #define UDLIT_OPER_P(ID_NODE) \
4747 (!strncmp (IDENTIFIER_POINTER (ID_NODE), \
4748 UDLIT_OP_ANSI_PREFIX, \
4749 sizeof (UDLIT_OP_ANSI_PREFIX) - 1))
4750 #define UDLIT_OP_SUFFIX(ID_NODE) \
4751 (IDENTIFIER_POINTER (ID_NODE) + sizeof (UDLIT_OP_ANSI_PREFIX) - 1)
4753 #if !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL)
4755 #define VTABLE_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == 'v' \
4756 && IDENTIFIER_POINTER (ID_NODE)[2] == 't' \
4757 && IDENTIFIER_POINTER (ID_NODE)[3] == JOINER)
4759 #define TEMP_NAME_P(ID_NODE) \
4760 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, sizeof (AUTO_TEMP_NAME)-1))
4761 #define VFIELD_NAME_P(ID_NODE) \
4762 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, sizeof(VFIELD_NAME)-1))
4764 #endif /* !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) */
4767 /* Nonzero if we're done parsing and into end-of-file activities. */
4769 extern int at_eof;
4771 /* A list of namespace-scope objects which have constructors or
4772 destructors which reside in the global scope. The decl is stored
4773 in the TREE_VALUE slot and the initializer is stored in the
4774 TREE_PURPOSE slot. */
4775 extern GTY(()) tree static_aggregates;
4776 /* Likewise, for thread local storage. */
4777 extern GTY(()) tree tls_aggregates;
4779 enum overload_flags { NO_SPECIAL = 0, DTOR_FLAG, TYPENAME_FLAG };
4781 /* These are uses as bits in flags passed to various functions to
4782 control their behavior. Despite the LOOKUP_ prefix, many of these
4783 do not control name lookup. ??? Functions using these flags should
4784 probably be modified to accept explicit boolean flags for the
4785 behaviors relevant to them. */
4786 /* Check for access violations. */
4787 #define LOOKUP_PROTECT (1 << 0)
4788 #define LOOKUP_NORMAL (LOOKUP_PROTECT)
4789 /* Even if the function found by lookup is a virtual function, it
4790 should be called directly. */
4791 #define LOOKUP_NONVIRTUAL (1 << 1)
4792 /* Non-converting (i.e., "explicit") constructors are not tried. This flag
4793 indicates that we are not performing direct-initialization. */
4794 #define LOOKUP_ONLYCONVERTING (1 << 2)
4795 #define LOOKUP_IMPLICIT (LOOKUP_NORMAL | LOOKUP_ONLYCONVERTING)
4796 /* If a temporary is created, it should be created so that it lives
4797 as long as the current variable bindings; otherwise it only lives
4798 until the end of the complete-expression. It also forces
4799 direct-initialization in cases where other parts of the compiler
4800 have already generated a temporary, such as reference
4801 initialization and the catch parameter. */
4802 #define DIRECT_BIND (1 << 3)
4803 /* We're performing a user-defined conversion, so more user-defined
4804 conversions are not permitted (only built-in conversions). */
4805 #define LOOKUP_NO_CONVERSION (1 << 4)
4806 /* The user has explicitly called a destructor. (Therefore, we do
4807 not need to check that the object is non-NULL before calling the
4808 destructor.) */
4809 #define LOOKUP_DESTRUCTOR (1 << 5)
4810 /* Do not permit references to bind to temporaries. */
4811 #define LOOKUP_NO_TEMP_BIND (1 << 6)
4812 /* Do not accept objects, and possibly namespaces. */
4813 #define LOOKUP_PREFER_TYPES (1 << 7)
4814 /* Do not accept objects, and possibly types. */
4815 #define LOOKUP_PREFER_NAMESPACES (1 << 8)
4816 /* Accept types or namespaces. */
4817 #define LOOKUP_PREFER_BOTH (LOOKUP_PREFER_TYPES | LOOKUP_PREFER_NAMESPACES)
4818 /* Return friend declarations and un-declared builtin functions.
4819 (Normally, these entities are registered in the symbol table, but
4820 not found by lookup.) */
4821 #define LOOKUP_HIDDEN (LOOKUP_PREFER_NAMESPACES << 1)
4822 /* Prefer that the lvalue be treated as an rvalue. */
4823 #define LOOKUP_PREFER_RVALUE (LOOKUP_HIDDEN << 1)
4824 /* We're inside an init-list, so narrowing conversions are ill-formed. */
4825 #define LOOKUP_NO_NARROWING (LOOKUP_PREFER_RVALUE << 1)
4826 /* We're looking up a constructor for list-initialization. */
4827 #define LOOKUP_LIST_INIT_CTOR (LOOKUP_NO_NARROWING << 1)
4828 /* This is the first parameter of a copy constructor. */
4829 #define LOOKUP_COPY_PARM (LOOKUP_LIST_INIT_CTOR << 1)
4830 /* We only want to consider list constructors. */
4831 #define LOOKUP_LIST_ONLY (LOOKUP_COPY_PARM << 1)
4832 /* Return after determining which function to call and checking access.
4833 Used by sythesized_method_walk to determine which functions will
4834 be called to initialize subobjects, in order to determine exception
4835 specification and possible implicit delete.
4836 This is kind of a hack, but exiting early avoids problems with trying
4837 to perform argument conversions when the class isn't complete yet. */
4838 #define LOOKUP_SPECULATIVE (LOOKUP_LIST_ONLY << 1)
4839 /* Used by calls from defaulted functions to limit the overload set to avoid
4840 cycles trying to declare them (core issue 1092). */
4841 #define LOOKUP_DEFAULTED (LOOKUP_SPECULATIVE << 1)
4842 /* Used in calls to store_init_value to suppress its usual call to
4843 digest_init. */
4844 #define LOOKUP_ALREADY_DIGESTED (LOOKUP_DEFAULTED << 1)
4845 /* An instantiation with explicit template arguments. */
4846 #define LOOKUP_EXPLICIT_TMPL_ARGS (LOOKUP_ALREADY_DIGESTED << 1)
4847 /* Like LOOKUP_NO_TEMP_BIND, but also prevent binding to xvalues. */
4848 #define LOOKUP_NO_RVAL_BIND (LOOKUP_EXPLICIT_TMPL_ARGS << 1)
4849 /* Used by case_conversion to disregard non-integral conversions. */
4850 #define LOOKUP_NO_NON_INTEGRAL (LOOKUP_NO_RVAL_BIND << 1)
4851 /* Used for delegating constructors in order to diagnose self-delegation. */
4852 #define LOOKUP_DELEGATING_CONS (LOOKUP_NO_NON_INTEGRAL << 1)
4854 #define LOOKUP_NAMESPACES_ONLY(F) \
4855 (((F) & LOOKUP_PREFER_NAMESPACES) && !((F) & LOOKUP_PREFER_TYPES))
4856 #define LOOKUP_TYPES_ONLY(F) \
4857 (!((F) & LOOKUP_PREFER_NAMESPACES) && ((F) & LOOKUP_PREFER_TYPES))
4858 #define LOOKUP_QUALIFIERS_ONLY(F) ((F) & LOOKUP_PREFER_BOTH)
4861 /* These flags are used by the conversion code.
4862 CONV_IMPLICIT : Perform implicit conversions (standard and user-defined).
4863 CONV_STATIC : Perform the explicit conversions for static_cast.
4864 CONV_CONST : Perform the explicit conversions for const_cast.
4865 CONV_REINTERPRET: Perform the explicit conversions for reinterpret_cast.
4866 CONV_PRIVATE : Perform upcasts to private bases.
4867 CONV_FORCE_TEMP : Require a new temporary when converting to the same
4868 aggregate type. */
4870 #define CONV_IMPLICIT 1
4871 #define CONV_STATIC 2
4872 #define CONV_CONST 4
4873 #define CONV_REINTERPRET 8
4874 #define CONV_PRIVATE 16
4875 /* #define CONV_NONCONVERTING 32 */
4876 #define CONV_FORCE_TEMP 64
4877 #define CONV_OLD_CONVERT (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
4878 | CONV_REINTERPRET)
4879 #define CONV_C_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
4880 | CONV_REINTERPRET | CONV_PRIVATE | CONV_FORCE_TEMP)
4882 /* Used by build_expr_type_conversion to indicate which types are
4883 acceptable as arguments to the expression under consideration. */
4885 #define WANT_INT 1 /* integer types, including bool */
4886 #define WANT_FLOAT 2 /* floating point types */
4887 #define WANT_ENUM 4 /* enumerated types */
4888 #define WANT_POINTER 8 /* pointer types */
4889 #define WANT_NULL 16 /* null pointer constant */
4890 #define WANT_VECTOR_OR_COMPLEX 32 /* vector or complex types */
4891 #define WANT_ARITH (WANT_INT | WANT_FLOAT | WANT_VECTOR_OR_COMPLEX)
4893 /* Used with comptypes, and related functions, to guide type
4894 comparison. */
4896 #define COMPARE_STRICT 0 /* Just check if the types are the
4897 same. */
4898 #define COMPARE_BASE 1 /* Check to see if the second type is
4899 derived from the first. */
4900 #define COMPARE_DERIVED 2 /* Like COMPARE_BASE, but in
4901 reverse. */
4902 #define COMPARE_REDECLARATION 4 /* The comparison is being done when
4903 another declaration of an existing
4904 entity is seen. */
4905 #define COMPARE_STRUCTURAL 8 /* The comparison is intended to be
4906 structural. The actual comparison
4907 will be identical to
4908 COMPARE_STRICT. */
4910 /* Used with push_overloaded_decl. */
4911 #define PUSH_GLOBAL 0 /* Push the DECL into namespace scope,
4912 regardless of the current scope. */
4913 #define PUSH_LOCAL 1 /* Push the DECL into the current
4914 scope. */
4915 #define PUSH_USING 2 /* We are pushing this DECL as the
4916 result of a using declaration. */
4918 /* Used with start function. */
4919 #define SF_DEFAULT 0 /* No flags. */
4920 #define SF_PRE_PARSED 1 /* The function declaration has
4921 already been parsed. */
4922 #define SF_INCLASS_INLINE 2 /* The function is an inline, defined
4923 in the class body. */
4925 /* Used with start_decl's initialized parameter. */
4926 #define SD_UNINITIALIZED 0
4927 #define SD_INITIALIZED 1
4928 #define SD_DEFAULTED 2
4929 #define SD_DELETED 3
4931 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, or if TYPE2
4932 is derived from TYPE1, or if TYPE2 is a pointer (reference) to a
4933 class derived from the type pointed to (referred to) by TYPE1. */
4934 #define same_or_base_type_p(TYPE1, TYPE2) \
4935 comptypes ((TYPE1), (TYPE2), COMPARE_BASE)
4937 /* These macros are used to access a TEMPLATE_PARM_INDEX. */
4938 #define TEMPLATE_PARM_INDEX_CAST(NODE) \
4939 ((template_parm_index*)TEMPLATE_PARM_INDEX_CHECK (NODE))
4940 #define TEMPLATE_PARM_IDX(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->index)
4941 #define TEMPLATE_PARM_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->level)
4942 #define TEMPLATE_PARM_DESCENDANTS(NODE) (TREE_CHAIN (NODE))
4943 #define TEMPLATE_PARM_ORIG_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->orig_level)
4944 #define TEMPLATE_PARM_DECL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->decl)
4945 #define TEMPLATE_PARM_PARAMETER_PACK(NODE) \
4946 (TREE_LANG_FLAG_0 (TEMPLATE_PARM_INDEX_CHECK (NODE)))
4948 /* These macros are for accessing the fields of TEMPLATE_TYPE_PARM,
4949 TEMPLATE_TEMPLATE_PARM and BOUND_TEMPLATE_TEMPLATE_PARM nodes. */
4950 #define TEMPLATE_TYPE_PARM_INDEX(NODE) \
4951 (TYPE_VALUES_RAW (TREE_CHECK3 ((NODE), TEMPLATE_TYPE_PARM, \
4952 TEMPLATE_TEMPLATE_PARM, \
4953 BOUND_TEMPLATE_TEMPLATE_PARM)))
4954 #define TEMPLATE_TYPE_IDX(NODE) \
4955 (TEMPLATE_PARM_IDX (TEMPLATE_TYPE_PARM_INDEX (NODE)))
4956 #define TEMPLATE_TYPE_LEVEL(NODE) \
4957 (TEMPLATE_PARM_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
4958 #define TEMPLATE_TYPE_ORIG_LEVEL(NODE) \
4959 (TEMPLATE_PARM_ORIG_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
4960 #define TEMPLATE_TYPE_DECL(NODE) \
4961 (TEMPLATE_PARM_DECL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
4962 #define TEMPLATE_TYPE_PARAMETER_PACK(NODE) \
4963 (TEMPLATE_PARM_PARAMETER_PACK (TEMPLATE_TYPE_PARM_INDEX (NODE)))
4965 /* Contexts in which auto deduction occurs. These flags are
4966 used to control diagnostics in do_auto_deduction. */
4968 enum auto_deduction_context
4970 adc_unspecified, /* Not given */
4971 adc_variable_type, /* Variable initializer deduction */
4972 adc_return_type, /* Return type deduction */
4973 adc_requirement /* Argument dedution constraint */
4976 /* True iff this TEMPLATE_TYPE_PARM represents decltype(auto). */
4977 #define AUTO_IS_DECLTYPE(NODE) \
4978 (TYPE_LANG_FLAG_5 (TEMPLATE_TYPE_PARM_CHECK (NODE)))
4980 /* These constants can used as bit flags in the process of tree formatting.
4982 TFF_PLAIN_IDENTIFIER: unqualified part of a name.
4983 TFF_SCOPE: include the class and namespace scope of the name.
4984 TFF_CHASE_TYPEDEF: print the original type-id instead of the typedef-name.
4985 TFF_DECL_SPECIFIERS: print decl-specifiers.
4986 TFF_CLASS_KEY_OR_ENUM: precede a class-type name (resp. enum name) with
4987 a class-key (resp. `enum').
4988 TFF_RETURN_TYPE: include function return type.
4989 TFF_FUNCTION_DEFAULT_ARGUMENTS: include function default parameter values.
4990 TFF_EXCEPTION_SPECIFICATION: show function exception specification.
4991 TFF_TEMPLATE_HEADER: show the template<...> header in a
4992 template-declaration.
4993 TFF_TEMPLATE_NAME: show only template-name.
4994 TFF_EXPR_IN_PARENS: parenthesize expressions.
4995 TFF_NO_FUNCTION_ARGUMENTS: don't show function arguments.
4996 TFF_UNQUALIFIED_NAME: do not print the qualifying scope of the
4997 top-level entity.
4998 TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS: do not omit template arguments
4999 identical to their defaults.
5000 TFF_NO_TEMPLATE_BINDINGS: do not print information about the template
5001 arguments for a function template specialization.
5002 TFF_POINTER: we are printing a pointer type. */
5004 #define TFF_PLAIN_IDENTIFIER (0)
5005 #define TFF_SCOPE (1)
5006 #define TFF_CHASE_TYPEDEF (1 << 1)
5007 #define TFF_DECL_SPECIFIERS (1 << 2)
5008 #define TFF_CLASS_KEY_OR_ENUM (1 << 3)
5009 #define TFF_RETURN_TYPE (1 << 4)
5010 #define TFF_FUNCTION_DEFAULT_ARGUMENTS (1 << 5)
5011 #define TFF_EXCEPTION_SPECIFICATION (1 << 6)
5012 #define TFF_TEMPLATE_HEADER (1 << 7)
5013 #define TFF_TEMPLATE_NAME (1 << 8)
5014 #define TFF_EXPR_IN_PARENS (1 << 9)
5015 #define TFF_NO_FUNCTION_ARGUMENTS (1 << 10)
5016 #define TFF_UNQUALIFIED_NAME (1 << 11)
5017 #define TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS (1 << 12)
5018 #define TFF_NO_TEMPLATE_BINDINGS (1 << 13)
5019 #define TFF_POINTER (1 << 14)
5021 /* Returns the TEMPLATE_DECL associated to a TEMPLATE_TEMPLATE_PARM
5022 node. */
5023 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_DECL(NODE) \
5024 ((TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM) \
5025 ? TYPE_TI_TEMPLATE (NODE) \
5026 : TYPE_NAME (NODE))
5028 /* in lex.c */
5030 extern void init_reswords (void);
5032 typedef struct GTY(()) operator_name_info_t {
5033 /* The IDENTIFIER_NODE for the operator. */
5034 tree identifier;
5035 /* The name of the operator. */
5036 const char *name;
5037 /* The mangled name of the operator. */
5038 const char *mangled_name;
5039 /* The arity of the operator. */
5040 int arity;
5041 } operator_name_info_t;
5043 /* A mapping from tree codes to operator name information. */
5044 extern GTY(()) operator_name_info_t operator_name_info
5045 [(int) MAX_TREE_CODES];
5046 /* Similar, but for assignment operators. */
5047 extern GTY(()) operator_name_info_t assignment_operator_name_info
5048 [(int) MAX_TREE_CODES];
5050 /* A type-qualifier, or bitmask therefore, using the TYPE_QUAL
5051 constants. */
5053 typedef int cp_cv_quals;
5055 /* Non-static member functions have an optional virt-specifier-seq.
5056 There is a VIRT_SPEC value for each virt-specifier.
5057 They can be combined by bitwise-or to form the complete set of
5058 virt-specifiers for a member function. */
5059 enum virt_specifier
5061 VIRT_SPEC_UNSPECIFIED = 0x0,
5062 VIRT_SPEC_FINAL = 0x1,
5063 VIRT_SPEC_OVERRIDE = 0x2
5066 /* A type-qualifier, or bitmask therefore, using the VIRT_SPEC
5067 constants. */
5069 typedef int cp_virt_specifiers;
5071 /* Wherever there is a function-cv-qual, there could also be a ref-qualifier:
5073 [dcl.fct]
5074 The return type, the parameter-type-list, the ref-qualifier, and
5075 the cv-qualifier-seq, but not the default arguments or the exception
5076 specification, are part of the function type.
5078 REF_QUAL_NONE Ordinary member function with no ref-qualifier
5079 REF_QUAL_LVALUE Member function with the &-ref-qualifier
5080 REF_QUAL_RVALUE Member function with the &&-ref-qualifier */
5082 enum cp_ref_qualifier {
5083 REF_QUAL_NONE = 0,
5084 REF_QUAL_LVALUE = 1,
5085 REF_QUAL_RVALUE = 2
5088 /* A storage class. */
5090 typedef enum cp_storage_class {
5091 /* sc_none must be zero so that zeroing a cp_decl_specifier_seq
5092 sets the storage_class field to sc_none. */
5093 sc_none = 0,
5094 sc_auto,
5095 sc_register,
5096 sc_static,
5097 sc_extern,
5098 sc_mutable
5099 } cp_storage_class;
5101 /* An individual decl-specifier. This is used to index the array of
5102 locations for the declspecs in struct cp_decl_specifier_seq
5103 below. */
5105 typedef enum cp_decl_spec {
5106 ds_first,
5107 ds_signed = ds_first,
5108 ds_unsigned,
5109 ds_short,
5110 ds_long,
5111 ds_const,
5112 ds_volatile,
5113 ds_restrict,
5114 ds_inline,
5115 ds_virtual,
5116 ds_explicit,
5117 ds_friend,
5118 ds_typedef,
5119 ds_alias,
5120 ds_constexpr,
5121 ds_complex,
5122 ds_thread,
5123 ds_type_spec,
5124 ds_redefined_builtin_type_spec,
5125 ds_attribute,
5126 ds_std_attribute,
5127 ds_storage_class,
5128 ds_long_long,
5129 ds_concept,
5130 ds_last /* This enumerator must always be the last one. */
5131 } cp_decl_spec;
5133 /* A decl-specifier-seq. */
5135 typedef struct cp_decl_specifier_seq {
5136 /* An array of locations for the declaration sepecifiers, indexed by
5137 enum cp_decl_spec_word. */
5138 source_location locations[ds_last];
5139 /* The primary type, if any, given by the decl-specifier-seq.
5140 Modifiers, like "short", "const", and "unsigned" are not
5141 reflected here. This field will be a TYPE, unless a typedef-name
5142 was used, in which case it will be a TYPE_DECL. */
5143 tree type;
5144 /* The attributes, if any, provided with the specifier sequence. */
5145 tree attributes;
5146 /* The c++11 attributes that follows the type specifier. */
5147 tree std_attributes;
5148 /* If non-NULL, a built-in type that the user attempted to redefine
5149 to some other type. */
5150 tree redefined_builtin_type;
5151 /* The storage class specified -- or sc_none if no storage class was
5152 explicitly specified. */
5153 cp_storage_class storage_class;
5154 /* For the __intN declspec, this stores the index into the int_n_* arrays. */
5155 int int_n_idx;
5156 /* True iff TYPE_SPEC defines a class or enum. */
5157 BOOL_BITFIELD type_definition_p : 1;
5158 /* True iff multiple types were (erroneously) specified for this
5159 decl-specifier-seq. */
5160 BOOL_BITFIELD multiple_types_p : 1;
5161 /* True iff multiple storage classes were (erroneously) specified
5162 for this decl-specifier-seq or a combination of a storage class
5163 with a typedef specifier. */
5164 BOOL_BITFIELD conflicting_specifiers_p : 1;
5165 /* True iff at least one decl-specifier was found. */
5166 BOOL_BITFIELD any_specifiers_p : 1;
5167 /* True iff at least one type-specifier was found. */
5168 BOOL_BITFIELD any_type_specifiers_p : 1;
5169 /* True iff "int" was explicitly provided. */
5170 BOOL_BITFIELD explicit_int_p : 1;
5171 /* True iff "__intN" was explicitly provided. */
5172 BOOL_BITFIELD explicit_intN_p : 1;
5173 /* True iff "char" was explicitly provided. */
5174 BOOL_BITFIELD explicit_char_p : 1;
5175 /* True iff ds_thread is set for __thread, not thread_local. */
5176 BOOL_BITFIELD gnu_thread_keyword_p : 1;
5177 /* True iff the type is a decltype. */
5178 BOOL_BITFIELD decltype_p : 1;
5179 } cp_decl_specifier_seq;
5181 /* The various kinds of declarators. */
5183 typedef enum cp_declarator_kind {
5184 cdk_id,
5185 cdk_function,
5186 cdk_array,
5187 cdk_pointer,
5188 cdk_reference,
5189 cdk_ptrmem,
5190 cdk_error
5191 } cp_declarator_kind;
5193 /* A declarator. */
5195 typedef struct cp_declarator cp_declarator;
5197 typedef struct cp_parameter_declarator cp_parameter_declarator;
5199 /* A parameter, before it has been semantically analyzed. */
5200 struct cp_parameter_declarator {
5201 /* The next parameter, or NULL_TREE if none. */
5202 cp_parameter_declarator *next;
5203 /* The decl-specifiers-seq for the parameter. */
5204 cp_decl_specifier_seq decl_specifiers;
5205 /* The declarator for the parameter. */
5206 cp_declarator *declarator;
5207 /* The default-argument expression, or NULL_TREE, if none. */
5208 tree default_argument;
5209 /* True iff this is the first parameter in the list and the
5210 parameter sequence ends with an ellipsis. */
5211 bool ellipsis_p;
5214 /* A declarator. */
5215 struct cp_declarator {
5216 /* The kind of declarator. */
5217 ENUM_BITFIELD (cp_declarator_kind) kind : 4;
5218 /* Whether we parsed an ellipsis (`...') just before the declarator,
5219 to indicate this is a parameter pack. */
5220 BOOL_BITFIELD parameter_pack_p : 1;
5221 location_t id_loc; /* Currently only set for cdk_id and cdk_function. */
5222 /* GNU Attributes that apply to this declarator. If the declarator
5223 is a pointer or a reference, these attribute apply to the type
5224 pointed to. */
5225 tree attributes;
5226 /* Standard C++11 attributes that apply to this declarator. If the
5227 declarator is a pointer or a reference, these attributes apply
5228 to the pointer, rather than to the type pointed to. */
5229 tree std_attributes;
5230 /* For all but cdk_id and cdk_error, the contained declarator. For
5231 cdk_id and cdk_error, guaranteed to be NULL. */
5232 cp_declarator *declarator;
5233 union {
5234 /* For identifiers. */
5235 struct {
5236 /* If non-NULL, the qualifying scope (a NAMESPACE_DECL or
5237 *_TYPE) for this identifier. */
5238 tree qualifying_scope;
5239 /* The unqualified name of the entity -- an IDENTIFIER_NODE,
5240 BIT_NOT_EXPR, or TEMPLATE_ID_EXPR. */
5241 tree unqualified_name;
5242 /* If this is the name of a function, what kind of special
5243 function (if any). */
5244 special_function_kind sfk;
5245 } id;
5246 /* For functions. */
5247 struct {
5248 /* The parameters to the function as a TREE_LIST of decl/default. */
5249 tree parameters;
5250 /* The cv-qualifiers for the function. */
5251 cp_cv_quals qualifiers;
5252 /* The virt-specifiers for the function. */
5253 cp_virt_specifiers virt_specifiers;
5254 /* The ref-qualifier for the function. */
5255 cp_ref_qualifier ref_qualifier;
5256 /* The exception-specification for the function. */
5257 tree exception_specification;
5258 /* The late-specified return type, if any. */
5259 tree late_return_type;
5260 /* The trailing requires-clause, if any. */
5261 tree requires_clause;
5262 } function;
5263 /* For arrays. */
5264 struct {
5265 /* The bounds to the array. */
5266 tree bounds;
5267 } array;
5268 /* For cdk_pointer and cdk_ptrmem. */
5269 struct {
5270 /* The cv-qualifiers for the pointer. */
5271 cp_cv_quals qualifiers;
5272 /* For cdk_ptrmem, the class type containing the member. */
5273 tree class_type;
5274 } pointer;
5275 /* For cdk_reference */
5276 struct {
5277 /* The cv-qualifiers for the reference. These qualifiers are
5278 only used to diagnose ill-formed code. */
5279 cp_cv_quals qualifiers;
5280 /* Whether this is an rvalue reference */
5281 bool rvalue_ref;
5282 } reference;
5283 } u;
5286 /* Returns the declarator for a function declaration or NULL
5287 if the declarator does not declare a function. */
5289 inline cp_declarator *
5290 get_function_declarator (cp_declarator *declarator)
5292 while (declarator)
5294 if (declarator->kind == cdk_function
5295 && declarator->declarator
5296 && declarator->declarator->kind == cdk_id)
5297 return declarator;
5298 if (declarator->kind == cdk_id
5299 || declarator->kind == cdk_error)
5300 return NULL;
5301 declarator = declarator->declarator;
5303 return NULL;
5306 inline const cp_declarator *
5307 get_function_declarator (const cp_declarator *declarator)
5309 return get_function_declarator(const_cast<cp_declarator *>(declarator));
5312 /* A level of template instantiation. */
5313 struct GTY((chain_next ("%h.next"))) tinst_level {
5314 /* The immediately deeper level in the chain. */
5315 struct tinst_level *next;
5317 /* The original node. Can be either a DECL (for a function or static
5318 data member) or a TYPE (for a class), depending on what we were
5319 asked to instantiate. */
5320 tree decl;
5322 /* The location where the template is instantiated. */
5323 location_t locus;
5325 /* errorcount+sorrycount when we pushed this level. */
5326 int errors;
5328 /* True if the location is in a system header. */
5329 bool in_system_header_p;
5332 bool decl_spec_seq_has_spec_p (const cp_decl_specifier_seq *, cp_decl_spec);
5334 /* Return the type of the `this' parameter of FNTYPE. */
5336 inline tree
5337 type_of_this_parm (const_tree fntype)
5339 function_args_iterator iter;
5340 gcc_assert (TREE_CODE (fntype) == METHOD_TYPE);
5341 function_args_iter_init (&iter, fntype);
5342 return function_args_iter_cond (&iter);
5345 /* Return the class of the `this' parameter of FNTYPE. */
5347 inline tree
5348 class_of_this_parm (const_tree fntype)
5350 return TREE_TYPE (type_of_this_parm (fntype));
5353 /* True iff T is a variable template declaration. */
5354 inline bool
5355 variable_template_p (tree t)
5357 if (TREE_CODE (t) != TEMPLATE_DECL)
5358 return false;
5359 if (!PRIMARY_TEMPLATE_P (t))
5360 return false;
5361 if (tree r = DECL_TEMPLATE_RESULT (t))
5362 return VAR_P (r);
5363 return false;
5366 /* True iff T is a variable concept definition. That is, T is
5367 a variable template declared with the concept specifier. */
5368 inline bool
5369 variable_concept_p (tree t)
5371 if (TREE_CODE (t) != TEMPLATE_DECL)
5372 return false;
5373 if (tree r = DECL_TEMPLATE_RESULT (t))
5374 return VAR_P (r) && DECL_DECLARED_CONCEPT_P (r);
5375 return false;
5378 /* A parameter list indicating for a function with no parameters,
5379 e.g "int f(void)". */
5380 extern cp_parameter_declarator *no_parameters;
5382 /* True if we saw "#pragma GCC java_exceptions". */
5383 extern bool pragma_java_exceptions;
5385 /* in call.c */
5386 extern bool check_dtor_name (tree, tree);
5387 bool magic_varargs_p (tree);
5389 extern tree build_conditional_expr (location_t, tree, tree, tree,
5390 tsubst_flags_t);
5391 extern tree build_addr_func (tree, tsubst_flags_t);
5392 extern void set_flags_from_callee (tree);
5393 extern tree build_call_a (tree, int, tree*);
5394 extern tree build_call_n (tree, int, ...);
5395 extern bool null_ptr_cst_p (tree);
5396 extern bool null_member_pointer_value_p (tree);
5397 extern bool sufficient_parms_p (const_tree);
5398 extern tree type_decays_to (tree);
5399 extern tree build_user_type_conversion (tree, tree, int,
5400 tsubst_flags_t);
5401 extern tree build_new_function_call (tree, vec<tree, va_gc> **, bool,
5402 tsubst_flags_t);
5403 extern tree build_operator_new_call (tree, vec<tree, va_gc> **, tree *,
5404 tree *, tree, tree *,
5405 tsubst_flags_t);
5406 extern tree build_new_method_call (tree, tree, vec<tree, va_gc> **,
5407 tree, int, tree *,
5408 tsubst_flags_t);
5409 extern tree build_special_member_call (tree, tree, vec<tree, va_gc> **,
5410 tree, int, tsubst_flags_t);
5411 extern tree build_new_op (location_t, enum tree_code,
5412 int, tree, tree, tree, tree *,
5413 tsubst_flags_t);
5414 extern tree build_op_call (tree, vec<tree, va_gc> **,
5415 tsubst_flags_t);
5416 extern bool non_placement_deallocation_fn_p (tree);
5417 extern tree build_op_delete_call (enum tree_code, tree, tree,
5418 bool, tree, tree,
5419 tsubst_flags_t);
5420 extern bool can_convert (tree, tree, tsubst_flags_t);
5421 extern bool can_convert_standard (tree, tree, tsubst_flags_t);
5422 extern bool can_convert_arg (tree, tree, tree, int,
5423 tsubst_flags_t);
5424 extern bool can_convert_arg_bad (tree, tree, tree, int,
5425 tsubst_flags_t);
5426 extern bool enforce_access (tree, tree, tree,
5427 tsubst_flags_t);
5428 extern void push_defarg_context (tree);
5429 extern void pop_defarg_context (void);
5430 extern tree convert_default_arg (tree, tree, tree, int,
5431 tsubst_flags_t);
5432 extern tree convert_arg_to_ellipsis (tree, tsubst_flags_t);
5433 extern tree build_x_va_arg (source_location, tree, tree);
5434 extern tree cxx_type_promotes_to (tree);
5435 extern tree type_passed_as (tree);
5436 extern tree convert_for_arg_passing (tree, tree, tsubst_flags_t);
5437 extern bool is_properly_derived_from (tree, tree);
5438 extern tree initialize_reference (tree, tree, int,
5439 tsubst_flags_t);
5440 extern tree extend_ref_init_temps (tree, tree, vec<tree, va_gc>**);
5441 extern tree make_temporary_var_for_ref_to_temp (tree, tree);
5442 extern bool type_has_extended_temps (tree);
5443 extern tree strip_top_quals (tree);
5444 extern bool reference_related_p (tree, tree);
5445 extern tree perform_implicit_conversion (tree, tree, tsubst_flags_t);
5446 extern tree perform_implicit_conversion_flags (tree, tree, tsubst_flags_t, int);
5447 extern tree build_integral_nontype_arg_conv (tree, tree, tsubst_flags_t);
5448 extern tree perform_direct_initialization_if_possible (tree, tree, bool,
5449 tsubst_flags_t);
5450 extern tree in_charge_arg_for_name (tree);
5451 extern tree build_cxx_call (tree, int, tree *,
5452 tsubst_flags_t);
5453 extern bool is_std_init_list (tree);
5454 extern bool is_list_ctor (tree);
5455 #ifdef ENABLE_CHECKING
5456 extern void validate_conversion_obstack (void);
5457 #endif /* ENABLE_CHECKING */
5458 extern void mark_versions_used (tree);
5459 extern tree get_function_version_dispatcher (tree);
5461 /* in class.c */
5462 extern tree build_vfield_ref (tree, tree);
5463 extern tree build_base_path (enum tree_code, tree,
5464 tree, int, tsubst_flags_t);
5465 extern tree convert_to_base (tree, tree, bool, bool,
5466 tsubst_flags_t);
5467 extern tree convert_to_base_statically (tree, tree);
5468 extern tree build_vtbl_ref (tree, tree);
5469 extern tree build_vfn_ref (tree, tree);
5470 extern tree get_vtable_decl (tree, int);
5471 extern void resort_type_method_vec (void *, void *,
5472 gt_pointer_operator, void *);
5473 extern bool add_method (tree, tree, tree);
5474 extern bool currently_open_class (tree);
5475 extern tree currently_open_derived_class (tree);
5476 extern tree outermost_open_class (void);
5477 extern tree current_nonlambda_class_type (void);
5478 extern tree finish_struct (tree, tree);
5479 extern void finish_struct_1 (tree);
5480 extern int resolves_to_fixed_type_p (tree, int *);
5481 extern void init_class_processing (void);
5482 extern int is_empty_class (tree);
5483 extern bool is_really_empty_class (tree);
5484 extern void pushclass (tree);
5485 extern void popclass (void);
5486 extern void push_nested_class (tree);
5487 extern void pop_nested_class (void);
5488 extern int current_lang_depth (void);
5489 extern void push_lang_context (tree);
5490 extern void pop_lang_context (void);
5491 extern tree instantiate_type (tree, tree, tsubst_flags_t);
5492 extern void print_class_statistics (void);
5493 extern void build_self_reference (void);
5494 extern int same_signature_p (const_tree, const_tree);
5495 extern void maybe_add_class_template_decl_list (tree, tree, int);
5496 extern void unreverse_member_declarations (tree);
5497 extern void invalidate_class_lookup_cache (void);
5498 extern void maybe_note_name_used_in_class (tree, tree);
5499 extern void note_name_declared_in_class (tree, tree);
5500 extern tree get_vtbl_decl_for_binfo (tree);
5501 extern void debug_class (tree);
5502 extern void debug_thunks (tree);
5503 extern void set_linkage_according_to_type (tree, tree);
5504 extern void determine_key_method (tree);
5505 extern void check_for_override (tree, tree);
5506 extern void push_class_stack (void);
5507 extern void pop_class_stack (void);
5508 extern bool type_has_user_nondefault_constructor (tree);
5509 extern tree in_class_defaulted_default_constructor (tree);
5510 extern bool user_provided_p (tree);
5511 extern bool type_has_user_provided_constructor (tree);
5512 extern bool type_has_non_user_provided_default_constructor (tree);
5513 extern bool vbase_has_user_provided_move_assign (tree);
5514 extern tree default_init_uninitialized_part (tree);
5515 extern bool trivial_default_constructor_is_constexpr (tree);
5516 extern bool type_has_constexpr_default_constructor (tree);
5517 extern bool type_has_virtual_destructor (tree);
5518 extern bool type_has_move_constructor (tree);
5519 extern bool type_has_move_assign (tree);
5520 extern bool type_has_user_declared_move_constructor (tree);
5521 extern bool type_has_user_declared_move_assign(tree);
5522 extern bool type_build_ctor_call (tree);
5523 extern bool type_build_dtor_call (tree);
5524 extern void explain_non_literal_class (tree);
5525 extern void inherit_targ_abi_tags (tree);
5526 extern void defaulted_late_check (tree);
5527 extern bool defaultable_fn_check (tree);
5528 extern void check_abi_tags (tree);
5529 extern void fixup_type_variants (tree);
5530 extern void fixup_attribute_variants (tree);
5531 extern tree* decl_cloned_function_p (const_tree, bool);
5532 extern void clone_function_decl (tree, int);
5533 extern void adjust_clone_args (tree);
5534 extern void deduce_noexcept_on_destructor (tree);
5535 extern void insert_late_enum_def_into_classtype_sorted_fields (tree, tree);
5536 extern bool uniquely_derived_from_p (tree, tree);
5537 extern bool publicly_uniquely_derived_p (tree, tree);
5538 extern tree common_enclosing_class (tree, tree);
5540 /* in cvt.c */
5541 extern tree convert_to_reference (tree, tree, int, int, tree,
5542 tsubst_flags_t);
5543 extern tree convert_from_reference (tree);
5544 extern tree force_rvalue (tree, tsubst_flags_t);
5545 extern tree ocp_convert (tree, tree, int, int,
5546 tsubst_flags_t);
5547 extern tree cp_convert (tree, tree, tsubst_flags_t);
5548 extern tree cp_convert_and_check (tree, tree, tsubst_flags_t);
5549 extern tree cp_fold_convert (tree, tree);
5550 extern tree convert_to_void (tree, impl_conv_void,
5551 tsubst_flags_t);
5552 extern tree convert_force (tree, tree, int,
5553 tsubst_flags_t);
5554 extern tree build_expr_type_conversion (int, tree, bool);
5555 extern tree type_promotes_to (tree);
5556 extern tree perform_qualification_conversions (tree, tree);
5558 /* in name-lookup.c */
5559 extern tree pushdecl (tree);
5560 extern tree pushdecl_maybe_friend (tree, bool);
5561 extern void maybe_push_cleanup_level (tree);
5562 extern tree pushtag (tree, tree, tag_scope);
5563 extern tree make_anon_name (void);
5564 extern tree pushdecl_top_level_maybe_friend (tree, bool);
5565 extern tree pushdecl_top_level_and_finish (tree, tree);
5566 extern tree check_for_out_of_scope_variable (tree);
5567 extern void dump (cp_binding_level &ref);
5568 extern void dump (cp_binding_level *ptr);
5569 extern void print_other_binding_stack (cp_binding_level *);
5570 extern tree maybe_push_decl (tree);
5571 extern tree current_decl_namespace (void);
5573 /* decl.c */
5574 extern tree poplevel (int, int, int);
5575 extern void cxx_init_decl_processing (void);
5576 enum cp_tree_node_structure_enum cp_tree_node_structure
5577 (union lang_tree_node *);
5578 extern void finish_scope (void);
5579 extern void push_switch (tree);
5580 extern void pop_switch (void);
5581 extern tree make_lambda_name (void);
5582 extern int decls_match (tree, tree);
5583 extern tree duplicate_decls (tree, tree, bool);
5584 extern tree declare_local_label (tree);
5585 extern tree define_label (location_t, tree);
5586 extern void check_goto (tree);
5587 extern bool check_omp_return (void);
5588 extern tree make_typename_type (tree, tree, enum tag_types, tsubst_flags_t);
5589 extern tree make_unbound_class_template (tree, tree, tree, tsubst_flags_t);
5590 extern tree build_library_fn_ptr (const char *, tree, int);
5591 extern tree build_cp_library_fn_ptr (const char *, tree, int);
5592 extern tree push_library_fn (tree, tree, tree, int);
5593 extern tree push_void_library_fn (tree, tree, int);
5594 extern tree push_throw_library_fn (tree, tree);
5595 extern void warn_misplaced_attr_for_class_type (source_location location,
5596 tree class_type);
5597 extern tree check_tag_decl (cp_decl_specifier_seq *, bool);
5598 extern tree shadow_tag (cp_decl_specifier_seq *);
5599 extern tree groktypename (cp_decl_specifier_seq *, const cp_declarator *, bool);
5600 extern tree start_decl (const cp_declarator *, cp_decl_specifier_seq *, int, tree, tree, tree *);
5601 extern void start_decl_1 (tree, bool);
5602 extern bool check_array_initializer (tree, tree, tree);
5603 extern void cp_finish_decl (tree, tree, bool, tree, int);
5604 extern int cp_complete_array_type (tree *, tree, bool);
5605 extern int cp_complete_array_type_or_error (tree *, tree, bool, tsubst_flags_t);
5606 extern tree build_ptrmemfunc_type (tree);
5607 extern tree build_ptrmem_type (tree, tree);
5608 /* the grokdeclarator prototype is in decl.h */
5609 extern tree build_this_parm (tree, cp_cv_quals);
5610 extern int copy_fn_p (const_tree);
5611 extern bool move_fn_p (const_tree);
5612 extern bool move_signature_fn_p (const_tree);
5613 extern tree get_scope_of_declarator (const cp_declarator *);
5614 extern void grok_special_member_properties (tree);
5615 extern int grok_ctor_properties (const_tree, const_tree);
5616 extern bool grok_op_properties (tree, bool);
5617 extern tree xref_tag (enum tag_types, tree, tag_scope, bool);
5618 extern tree xref_tag_from_type (tree, tree, tag_scope);
5619 extern bool xref_basetypes (tree, tree);
5620 extern tree start_enum (tree, tree, tree, bool, bool *);
5621 extern void finish_enum_value_list (tree);
5622 extern void finish_enum (tree);
5623 extern void build_enumerator (tree, tree, tree, location_t);
5624 extern tree lookup_enumerator (tree, tree);
5625 extern bool start_preparsed_function (tree, tree, int);
5626 extern bool start_function (cp_decl_specifier_seq *,
5627 const cp_declarator *, tree);
5628 extern tree begin_function_body (void);
5629 extern void finish_function_body (tree);
5630 extern tree outer_curly_brace_block (tree);
5631 extern tree finish_function (int);
5632 extern tree grokmethod (cp_decl_specifier_seq *, const cp_declarator *, tree);
5633 extern void maybe_register_incomplete_var (tree);
5634 extern void maybe_commonize_var (tree);
5635 extern void complete_vars (tree);
5636 extern tree static_fn_type (tree);
5637 extern void revert_static_member_fn (tree);
5638 extern void fixup_anonymous_aggr (tree);
5639 extern tree compute_array_index_type (tree, tree, tsubst_flags_t);
5640 extern tree check_default_argument (tree, tree, tsubst_flags_t);
5641 typedef int (*walk_namespaces_fn) (tree, void *);
5642 extern int walk_namespaces (walk_namespaces_fn,
5643 void *);
5644 extern int wrapup_globals_for_namespace (tree, void *);
5645 extern tree create_implicit_typedef (tree, tree);
5646 extern int local_variable_p (const_tree);
5647 extern tree register_dtor_fn (tree);
5648 extern tmpl_spec_kind current_tmpl_spec_kind (int);
5649 extern tree cp_fname_init (const char *, tree *);
5650 extern tree cxx_builtin_function (tree decl);
5651 extern tree cxx_builtin_function_ext_scope (tree decl);
5652 extern tree check_elaborated_type_specifier (enum tag_types, tree, bool);
5653 extern void warn_extern_redeclared_static (tree, tree);
5654 extern tree cxx_comdat_group (tree);
5655 extern bool cp_missing_noreturn_ok_p (tree);
5656 extern void initialize_artificial_var (tree, vec<constructor_elt, va_gc> *);
5657 extern tree check_var_type (tree, tree);
5658 extern tree reshape_init (tree, tree, tsubst_flags_t);
5659 extern tree next_initializable_field (tree);
5660 extern tree fndecl_declared_return_type (tree);
5661 extern bool undeduced_auto_decl (tree);
5662 extern void require_deduced_type (tree);
5664 extern bool defer_mark_used_calls;
5665 extern GTY(()) vec<tree, va_gc> *deferred_mark_used_calls;
5666 extern tree finish_case_label (location_t, tree, tree);
5667 extern tree cxx_maybe_build_cleanup (tree, tsubst_flags_t);
5668 extern void push_function_parms (cp_declarator *);
5670 /* in decl2.c */
5671 extern bool check_java_method (tree);
5672 extern tree build_memfn_type (tree, tree, cp_cv_quals, cp_ref_qualifier);
5673 extern tree build_pointer_ptrmemfn_type (tree);
5674 extern tree change_return_type (tree, tree);
5675 extern void maybe_retrofit_in_chrg (tree);
5676 extern void maybe_make_one_only (tree);
5677 extern bool vague_linkage_p (tree);
5678 extern void grokclassfn (tree, tree,
5679 enum overload_flags);
5680 extern tree grok_array_decl (location_t, tree, tree, bool);
5681 extern tree delete_sanity (tree, tree, bool, int, tsubst_flags_t);
5682 extern tree check_classfn (tree, tree, tree);
5683 extern void check_member_template (tree);
5684 extern tree grokfield (const cp_declarator *, cp_decl_specifier_seq *,
5685 tree, bool, tree, tree);
5686 extern tree grokbitfield (const cp_declarator *, cp_decl_specifier_seq *,
5687 tree, tree);
5688 extern tree cp_reconstruct_complex_type (tree, tree);
5689 extern bool attributes_naming_typedef_ok (tree);
5690 extern void cplus_decl_attributes (tree *, tree, int);
5691 extern void finish_anon_union (tree);
5692 extern void cp_write_global_declarations (void);
5693 extern tree coerce_new_type (tree);
5694 extern tree coerce_delete_type (tree);
5695 extern void comdat_linkage (tree);
5696 extern void determine_visibility (tree);
5697 extern void constrain_class_visibility (tree);
5698 extern void reset_type_linkage (tree);
5699 extern void tentative_decl_linkage (tree);
5700 extern void import_export_decl (tree);
5701 extern tree build_cleanup (tree);
5702 extern tree build_offset_ref_call_from_tree (tree, vec<tree, va_gc> **,
5703 tsubst_flags_t);
5704 extern bool decl_constant_var_p (tree);
5705 extern bool decl_maybe_constant_var_p (tree);
5706 extern void no_linkage_error (tree);
5707 extern void check_default_args (tree);
5708 extern bool mark_used (tree);
5709 extern bool mark_used (tree, tsubst_flags_t);
5710 extern void finish_static_data_member_decl (tree, tree, bool, tree, int);
5711 extern tree cp_build_parm_decl (tree, tree);
5712 extern tree get_guard (tree);
5713 extern tree get_guard_cond (tree);
5714 extern tree set_guard (tree);
5715 extern tree get_tls_wrapper_fn (tree);
5716 extern void mark_needed (tree);
5717 extern bool decl_needed_p (tree);
5718 extern void note_vague_linkage_fn (tree);
5719 extern void note_variable_template_instantiation (tree);
5720 extern tree build_artificial_parm (tree, tree);
5721 extern bool possibly_inlined_p (tree);
5722 extern int parm_index (tree);
5723 extern tree vtv_start_verification_constructor_init_function (void);
5724 extern tree vtv_finish_verification_constructor_init_function (tree);
5725 extern bool cp_omp_mappable_type (tree);
5727 /* in error.c */
5728 extern void init_error (void);
5729 extern const char *type_as_string (tree, int);
5730 extern const char *type_as_string_translate (tree, int);
5731 extern const char *decl_as_string (tree, int);
5732 extern const char *decl_as_string_translate (tree, int);
5733 extern const char *decl_as_dwarf_string (tree, int);
5734 extern const char *expr_as_string (tree, int);
5735 extern const char *lang_decl_name (tree, int, bool);
5736 extern const char *lang_decl_dwarf_name (tree, int, bool);
5737 extern const char *language_to_string (enum languages);
5738 extern const char *class_key_or_enum_as_string (tree);
5739 extern void maybe_warn_variadic_templates (void);
5740 extern void maybe_warn_cpp0x (cpp0x_warn_str str);
5741 extern bool pedwarn_cxx98 (location_t, int, const char *, ...) ATTRIBUTE_GCC_DIAG(3,4);
5742 extern location_t location_of (tree);
5743 extern void qualified_name_lookup_error (tree, tree, tree,
5744 location_t);
5746 /* in except.c */
5747 extern void init_exception_processing (void);
5748 extern tree expand_start_catch_block (tree);
5749 extern void expand_end_catch_block (void);
5750 extern tree build_exc_ptr (void);
5751 extern tree build_throw (tree);
5752 extern int nothrow_libfn_p (const_tree);
5753 extern void check_handlers (tree);
5754 extern tree finish_noexcept_expr (tree, tsubst_flags_t);
5755 extern bool expr_noexcept_p (tree, tsubst_flags_t);
5756 extern void perform_deferred_noexcept_checks (void);
5757 extern bool nothrow_spec_p (const_tree);
5758 extern bool type_noexcept_p (const_tree);
5759 extern bool type_throw_all_p (const_tree);
5760 extern tree build_noexcept_spec (tree, int);
5761 extern void choose_personality_routine (enum languages);
5762 extern tree build_must_not_throw_expr (tree,tree);
5763 extern tree eh_type_info (tree);
5764 extern tree begin_eh_spec_block (void);
5765 extern void finish_eh_spec_block (tree, tree);
5766 extern tree build_eh_type_type (tree);
5767 extern tree cp_protect_cleanup_actions (void);
5768 extern tree create_try_catch_expr (tree, tree);
5770 /* in expr.c */
5771 extern tree cplus_expand_constant (tree);
5772 extern tree mark_rvalue_use (tree);
5773 extern tree mark_lvalue_use (tree);
5774 extern tree mark_type_use (tree);
5775 extern void mark_exp_read (tree);
5777 /* friend.c */
5778 extern int is_friend (tree, tree);
5779 extern void make_friend_class (tree, tree, bool);
5780 extern void add_friend (tree, tree, bool);
5781 extern tree do_friend (tree, tree, tree, tree, enum overload_flags, bool);
5783 /* in init.c */
5784 extern tree expand_member_init (tree);
5785 extern void emit_mem_initializers (tree);
5786 extern tree build_aggr_init (tree, tree, int,
5787 tsubst_flags_t);
5788 extern int is_class_type (tree, int);
5789 extern tree get_type_value (tree);
5790 extern tree build_zero_init (tree, tree, bool);
5791 extern tree build_value_init (tree, tsubst_flags_t);
5792 extern tree build_value_init_noctor (tree, tsubst_flags_t);
5793 extern tree get_nsdmi (tree, bool);
5794 extern tree build_offset_ref (tree, tree, bool,
5795 tsubst_flags_t);
5796 extern tree throw_bad_array_new_length (void);
5797 extern tree build_new (vec<tree, va_gc> **, tree, tree,
5798 vec<tree, va_gc> **, int,
5799 tsubst_flags_t);
5800 extern tree get_temp_regvar (tree, tree);
5801 extern tree build_vec_init (tree, tree, tree, bool, int,
5802 tsubst_flags_t);
5803 extern tree build_delete (tree, tree,
5804 special_function_kind,
5805 int, int, tsubst_flags_t);
5806 extern void push_base_cleanups (void);
5807 extern tree build_vec_delete (tree, tree,
5808 special_function_kind, int,
5809 tsubst_flags_t);
5810 extern tree create_temporary_var (tree);
5811 extern void initialize_vtbl_ptrs (tree);
5812 extern tree build_java_class_ref (tree);
5813 extern tree scalar_constant_value (tree);
5814 extern tree decl_really_constant_value (tree);
5815 extern int diagnose_uninitialized_cst_or_ref_member (tree, bool, bool);
5816 extern tree build_vtbl_address (tree);
5818 /* in lex.c */
5819 extern void cxx_dup_lang_specific_decl (tree);
5820 extern void yyungetc (int, int);
5822 extern tree unqualified_name_lookup_error (tree);
5823 extern tree unqualified_fn_lookup_error (tree);
5824 extern tree build_lang_decl (enum tree_code, tree, tree);
5825 extern tree build_lang_decl_loc (location_t, enum tree_code, tree, tree);
5826 extern void retrofit_lang_decl (tree);
5827 extern tree copy_decl (tree);
5828 extern tree copy_type (tree);
5829 extern tree cxx_make_type (enum tree_code);
5830 extern tree make_class_type (enum tree_code);
5831 extern bool cxx_init (void);
5832 extern void cxx_finish (void);
5833 extern bool in_main_input_context (void);
5835 /* in method.c */
5836 extern void init_method (void);
5837 extern tree make_thunk (tree, bool, tree, tree);
5838 extern void finish_thunk (tree);
5839 extern void use_thunk (tree, bool);
5840 extern bool trivial_fn_p (tree);
5841 extern bool is_trivially_xible (enum tree_code, tree, tree);
5842 extern tree get_defaulted_eh_spec (tree);
5843 extern tree unevaluated_noexcept_spec (void);
5844 extern void after_nsdmi_defaulted_late_checks (tree);
5845 extern bool maybe_explain_implicit_delete (tree);
5846 extern void explain_implicit_non_constexpr (tree);
5847 extern void deduce_inheriting_ctor (tree);
5848 extern void synthesize_method (tree);
5849 extern tree lazily_declare_fn (special_function_kind,
5850 tree);
5851 extern tree skip_artificial_parms_for (const_tree, tree);
5852 extern int num_artificial_parms_for (const_tree);
5853 extern tree make_alias_for (tree, tree);
5854 extern tree get_copy_ctor (tree, tsubst_flags_t);
5855 extern tree get_copy_assign (tree);
5856 extern tree get_default_ctor (tree);
5857 extern tree get_dtor (tree, tsubst_flags_t);
5858 extern tree get_inherited_ctor (tree);
5859 extern tree locate_ctor (tree);
5860 extern tree implicitly_declare_fn (special_function_kind, tree,
5861 bool, tree, tree);
5863 /* In optimize.c */
5864 extern bool maybe_clone_body (tree);
5866 /* In parser.c */
5867 extern tree cp_convert_range_for (tree, tree, tree, bool);
5868 extern bool parsing_nsdmi (void);
5869 extern void inject_this_parameter (tree, cp_cv_quals);
5871 /* in pt.c */
5872 extern bool check_template_shadow (tree);
5873 extern tree get_innermost_template_args (tree, int);
5874 extern void maybe_begin_member_template_processing (tree);
5875 extern void maybe_end_member_template_processing (void);
5876 extern tree finish_member_template_decl (tree);
5877 extern void begin_template_parm_list (void);
5878 extern bool begin_specialization (void);
5879 extern void reset_specialization (void);
5880 extern void end_specialization (void);
5881 extern void begin_explicit_instantiation (void);
5882 extern void end_explicit_instantiation (void);
5883 extern tree check_explicit_specialization (tree, tree, int, int);
5884 extern int num_template_headers_for_class (tree);
5885 extern void check_template_variable (tree);
5886 extern tree make_auto (void);
5887 extern tree make_decltype_auto (void);
5888 extern tree do_auto_deduction (tree, tree, tree);
5889 extern tree do_auto_deduction (tree, tree, tree,
5890 tsubst_flags_t,
5891 auto_deduction_context);
5892 extern tree type_uses_auto (tree);
5893 extern tree type_uses_auto_or_concept (tree);
5894 extern void append_type_to_template_for_access_check (tree, tree, tree,
5895 location_t);
5896 extern tree convert_generic_types_to_packs (tree, int, int);
5897 extern tree splice_late_return_type (tree, tree);
5898 extern bool is_auto (const_tree);
5899 extern bool is_auto_or_concept (const_tree);
5900 extern tree process_template_parm (tree, location_t, tree,
5901 bool, bool);
5902 extern tree end_template_parm_list (tree);
5903 extern void end_template_parm_list ();
5904 extern void end_template_decl (void);
5905 extern tree maybe_update_decl_type (tree, tree);
5906 extern bool check_default_tmpl_args (tree, tree, bool, bool, int);
5907 extern tree push_template_decl (tree);
5908 extern tree push_template_decl_real (tree, bool);
5909 extern tree add_inherited_template_parms (tree, tree);
5910 extern bool redeclare_class_template (tree, tree, tree);
5911 extern tree lookup_template_class (tree, tree, tree, tree,
5912 int, tsubst_flags_t);
5913 extern tree lookup_template_function (tree, tree);
5914 extern tree lookup_template_variable (tree, tree);
5915 extern int uses_template_parms (tree);
5916 extern int uses_template_parms_level (tree, int);
5917 extern bool in_template_function (void);
5918 extern tree instantiate_class_template (tree);
5919 extern tree instantiate_template (tree, tree, tsubst_flags_t);
5920 extern tree fn_type_unification (tree, tree, tree,
5921 const tree *, unsigned int,
5922 tree, unification_kind_t, int,
5923 bool, bool);
5924 extern void mark_decl_instantiated (tree, int);
5925 extern int more_specialized_fn (tree, tree, int);
5926 extern void do_decl_instantiation (tree, tree);
5927 extern void do_type_instantiation (tree, tree, tsubst_flags_t);
5928 extern bool always_instantiate_p (tree);
5929 extern void maybe_instantiate_noexcept (tree);
5930 extern tree instantiate_decl (tree, int, bool);
5931 extern int comp_template_parms (const_tree, const_tree);
5932 extern bool uses_parameter_packs (tree);
5933 extern bool template_parameter_pack_p (const_tree);
5934 extern bool function_parameter_pack_p (const_tree);
5935 extern bool function_parameter_expanded_from_pack_p (tree, tree);
5936 extern tree make_pack_expansion (tree);
5937 extern bool check_for_bare_parameter_packs (tree);
5938 extern tree build_template_info (tree, tree);
5939 extern tree get_template_info (const_tree);
5940 extern vec<qualified_typedef_usage_t, va_gc> *get_types_needing_access_check (tree);
5941 extern int template_class_depth (tree);
5942 extern int is_specialization_of (tree, tree);
5943 extern bool is_specialization_of_friend (tree, tree);
5944 extern tree get_pattern_parm (tree, tree);
5945 extern int comp_template_args (tree, tree);
5946 extern tree maybe_process_partial_specialization (tree);
5947 extern tree most_specialized_instantiation (tree);
5948 extern void print_candidates (tree);
5949 extern void instantiate_pending_templates (int);
5950 extern tree tsubst_default_argument (tree, tree, tree,
5951 tsubst_flags_t);
5952 extern tree tsubst (tree, tree, tsubst_flags_t, tree);
5953 extern tree tsubst_copy_and_build (tree, tree, tsubst_flags_t,
5954 tree, bool, bool);
5955 extern tree tsubst_expr (tree, tree, tsubst_flags_t,
5956 tree, bool);
5957 extern tree tsubst_pack_expansion (tree, tree, tsubst_flags_t, tree);
5958 extern tree most_general_template (tree);
5959 extern tree get_mostly_instantiated_function_type (tree);
5960 extern bool problematic_instantiation_changed (void);
5961 extern void record_last_problematic_instantiation (void);
5962 extern struct tinst_level *current_instantiation(void);
5963 extern bool instantiating_current_function_p (void);
5964 extern tree maybe_get_template_decl_from_type_decl (tree);
5965 extern int processing_template_parmlist;
5966 extern bool dependent_type_p (tree);
5967 extern bool dependent_scope_p (tree);
5968 extern bool any_dependent_template_arguments_p (const_tree);
5969 extern bool dependent_template_p (tree);
5970 extern bool dependent_template_id_p (tree, tree);
5971 extern bool type_dependent_expression_p (tree);
5972 extern bool any_type_dependent_arguments_p (const vec<tree, va_gc> *);
5973 extern bool any_type_dependent_elements_p (const_tree);
5974 extern bool type_dependent_expression_p_push (tree);
5975 extern bool value_dependent_expression_p (tree);
5976 extern bool instantiation_dependent_expression_p (tree);
5977 extern bool any_value_dependent_elements_p (const_tree);
5978 extern bool dependent_omp_for_p (tree, tree, tree, tree);
5979 extern tree resolve_typename_type (tree, bool);
5980 extern tree template_for_substitution (tree);
5981 extern tree build_non_dependent_expr (tree);
5982 extern void make_args_non_dependent (vec<tree, va_gc> *);
5983 extern bool reregister_specialization (tree, tree, tree);
5984 extern tree instantiate_non_dependent_expr (tree);
5985 extern tree instantiate_non_dependent_expr_sfinae (tree, tsubst_flags_t);
5986 extern tree instantiate_non_dependent_expr_internal (tree, tsubst_flags_t);
5987 extern bool alias_type_or_template_p (tree);
5988 extern bool alias_template_specialization_p (const_tree);
5989 extern bool dependent_alias_template_spec_p (const_tree);
5990 extern bool explicit_class_specialization_p (tree);
5991 extern bool push_tinst_level (tree);
5992 extern bool push_tinst_level_loc (tree, location_t);
5993 extern void pop_tinst_level (void);
5994 extern struct tinst_level *outermost_tinst_level(void);
5995 extern void init_template_processing (void);
5996 extern void print_template_statistics (void);
5997 bool template_template_parameter_p (const_tree);
5998 bool template_type_parameter_p (const_tree);
5999 extern bool primary_template_instantiation_p (const_tree);
6000 extern tree get_primary_template_innermost_parameters (const_tree);
6001 extern tree get_template_parms_at_level (tree, int);
6002 extern tree get_template_innermost_arguments (const_tree);
6003 extern tree get_template_argument_pack_elems (const_tree);
6004 extern tree get_function_template_decl (const_tree);
6005 extern tree resolve_nondeduced_context (tree);
6006 extern hashval_t iterative_hash_template_arg (tree arg, hashval_t val);
6007 extern tree coerce_template_parms (tree, tree, tree);
6008 extern tree coerce_template_parms (tree, tree, tree, tsubst_flags_t);
6009 extern void register_local_specialization (tree, tree);
6010 extern tree retrieve_local_specialization (tree);
6011 extern tree extract_fnparm_pack (tree, tree *);
6012 extern tree template_parm_to_arg (tree);
6014 /* in repo.c */
6015 extern void init_repo (void);
6016 extern int repo_emit_p (tree);
6017 extern bool repo_export_class_p (const_tree);
6018 extern void finish_repo (void);
6020 /* in rtti.c */
6021 /* A vector of all tinfo decls that haven't been emitted yet. */
6022 extern GTY(()) vec<tree, va_gc> *unemitted_tinfo_decls;
6024 extern void init_rtti_processing (void);
6025 extern tree build_typeid (tree, tsubst_flags_t);
6026 extern tree get_tinfo_decl (tree);
6027 extern tree get_typeid (tree, tsubst_flags_t);
6028 extern tree build_headof (tree);
6029 extern tree build_dynamic_cast (tree, tree, tsubst_flags_t);
6030 extern void emit_support_tinfos (void);
6031 extern bool emit_tinfo_decl (tree);
6033 /* in search.c */
6034 extern bool accessible_base_p (tree, tree, bool);
6035 extern tree lookup_base (tree, tree, base_access,
6036 base_kind *, tsubst_flags_t);
6037 extern tree dcast_base_hint (tree, tree);
6038 extern int accessible_p (tree, tree, bool);
6039 extern int accessible_in_template_p (tree, tree);
6040 extern tree lookup_field_1 (tree, tree, bool);
6041 extern tree lookup_field (tree, tree, int, bool);
6042 extern int lookup_fnfields_1 (tree, tree);
6043 extern tree lookup_fnfields_slot (tree, tree);
6044 extern tree lookup_fnfields_slot_nolazy (tree, tree);
6045 extern int class_method_index_for_fn (tree, tree);
6046 extern tree lookup_fnfields (tree, tree, int);
6047 extern tree lookup_member (tree, tree, int, bool,
6048 tsubst_flags_t);
6049 extern int look_for_overrides (tree, tree);
6050 extern void get_pure_virtuals (tree);
6051 extern void maybe_suppress_debug_info (tree);
6052 extern void note_debug_info_needed (tree);
6053 extern void print_search_statistics (void);
6054 extern void reinit_search_statistics (void);
6055 extern tree current_scope (void);
6056 extern int at_function_scope_p (void);
6057 extern bool at_class_scope_p (void);
6058 extern bool at_namespace_scope_p (void);
6059 extern tree context_for_name_lookup (tree);
6060 extern tree lookup_conversions (tree);
6061 extern tree binfo_from_vbase (tree);
6062 extern tree binfo_for_vbase (tree, tree);
6063 extern tree look_for_overrides_here (tree, tree);
6064 #define dfs_skip_bases ((tree)1)
6065 extern tree dfs_walk_all (tree, tree (*) (tree, void *),
6066 tree (*) (tree, void *), void *);
6067 extern tree dfs_walk_once (tree, tree (*) (tree, void *),
6068 tree (*) (tree, void *), void *);
6069 extern tree binfo_via_virtual (tree, tree);
6070 extern tree build_baselink (tree, tree, tree, tree);
6071 extern tree adjust_result_of_qualified_name_lookup
6072 (tree, tree, tree);
6073 extern tree copied_binfo (tree, tree);
6074 extern tree original_binfo (tree, tree);
6075 extern int shared_member_p (tree);
6077 /* The representation of a deferred access check. */
6079 typedef struct GTY(()) deferred_access_check {
6080 /* The base class in which the declaration is referenced. */
6081 tree binfo;
6082 /* The declaration whose access must be checked. */
6083 tree decl;
6084 /* The declaration that should be used in the error message. */
6085 tree diag_decl;
6086 /* The location of this access. */
6087 location_t loc;
6088 } deferred_access_check;
6090 /* in semantics.c */
6091 extern void push_deferring_access_checks (deferring_kind);
6092 extern void resume_deferring_access_checks (void);
6093 extern void stop_deferring_access_checks (void);
6094 extern void pop_deferring_access_checks (void);
6095 extern vec<deferred_access_check, va_gc> *get_deferred_access_checks (void);
6096 extern void reopen_deferring_access_checks (vec<deferred_access_check, va_gc> *);
6097 extern void pop_to_parent_deferring_access_checks (void);
6098 extern bool perform_access_checks (vec<deferred_access_check, va_gc> *,
6099 tsubst_flags_t);
6100 extern bool perform_deferred_access_checks (tsubst_flags_t);
6101 extern bool perform_or_defer_access_check (tree, tree, tree,
6102 tsubst_flags_t);
6104 /* RAII sentinel to ensures that deferred access checks are popped before
6105 a function returns. */
6107 struct deferring_access_check_sentinel
6109 deferring_access_check_sentinel ()
6111 push_deferring_access_checks (dk_deferred);
6113 ~deferring_access_check_sentinel ()
6115 pop_deferring_access_checks ();
6119 extern int stmts_are_full_exprs_p (void);
6120 extern void init_cp_semantics (void);
6121 extern tree do_poplevel (tree);
6122 extern void break_maybe_infinite_loop (void);
6123 extern void add_decl_expr (tree);
6124 extern tree maybe_cleanup_point_expr_void (tree);
6125 extern tree finish_expr_stmt (tree);
6126 extern tree begin_if_stmt (void);
6127 extern void finish_if_stmt_cond (tree, tree);
6128 extern tree finish_then_clause (tree);
6129 extern void begin_else_clause (tree);
6130 extern void finish_else_clause (tree);
6131 extern void finish_if_stmt (tree);
6132 extern tree begin_while_stmt (void);
6133 extern void finish_while_stmt_cond (tree, tree, bool);
6134 extern void finish_while_stmt (tree);
6135 extern tree begin_do_stmt (void);
6136 extern void finish_do_body (tree);
6137 extern void finish_do_stmt (tree, tree, bool);
6138 extern tree finish_return_stmt (tree);
6139 extern tree begin_for_scope (tree *);
6140 extern tree begin_for_stmt (tree, tree);
6141 extern void finish_for_init_stmt (tree);
6142 extern void finish_for_cond (tree, tree, bool);
6143 extern void finish_for_expr (tree, tree);
6144 extern void finish_for_stmt (tree);
6145 extern tree begin_range_for_stmt (tree, tree);
6146 extern void finish_range_for_decl (tree, tree, tree);
6147 extern void finish_range_for_stmt (tree);
6148 extern tree finish_break_stmt (void);
6149 extern tree finish_continue_stmt (void);
6150 extern tree begin_switch_stmt (void);
6151 extern void finish_switch_cond (tree, tree);
6152 extern void finish_switch_stmt (tree);
6153 extern tree finish_goto_stmt (tree);
6154 extern tree begin_try_block (void);
6155 extern void finish_try_block (tree);
6156 extern void finish_handler_sequence (tree);
6157 extern tree begin_function_try_block (tree *);
6158 extern void finish_function_try_block (tree);
6159 extern void finish_function_handler_sequence (tree, tree);
6160 extern void finish_cleanup_try_block (tree);
6161 extern tree begin_handler (void);
6162 extern void finish_handler_parms (tree, tree);
6163 extern void finish_handler (tree);
6164 extern void finish_cleanup (tree, tree);
6165 extern bool is_unary_trait (cp_trait_kind);
6166 extern bool is_binary_trait (cp_trait_kind);
6167 extern bool is_this_parameter (tree);
6168 extern bool is_this_parameter (tree);
6169 extern tree xvalue_result_type (tree);
6171 enum {
6172 BCS_NO_SCOPE = 1,
6173 BCS_TRY_BLOCK = 2,
6174 BCS_FN_BODY = 4
6176 extern tree begin_compound_stmt (unsigned int);
6178 extern void finish_compound_stmt (tree);
6179 extern tree finish_asm_stmt (int, tree, tree, tree, tree,
6180 tree);
6181 extern tree finish_label_stmt (tree);
6182 extern void finish_label_decl (tree);
6183 extern tree finish_parenthesized_expr (tree);
6184 extern tree force_paren_expr (tree);
6185 extern tree finish_non_static_data_member (tree, tree, tree);
6186 extern tree begin_stmt_expr (void);
6187 extern tree finish_stmt_expr_expr (tree, tree);
6188 extern tree finish_stmt_expr (tree, bool);
6189 extern tree stmt_expr_value_expr (tree);
6190 bool empty_expr_stmt_p (tree);
6191 extern tree perform_koenig_lookup (tree, vec<tree, va_gc> *,
6192 tsubst_flags_t);
6193 extern tree finish_call_expr (tree, vec<tree, va_gc> **, bool,
6194 bool, tsubst_flags_t);
6195 extern tree finish_template_variable (tree);
6196 extern tree finish_increment_expr (tree, enum tree_code);
6197 extern tree finish_this_expr (void);
6198 extern tree finish_pseudo_destructor_expr (tree, tree, tree, location_t);
6199 extern tree finish_unary_op_expr (location_t, enum tree_code, tree,
6200 tsubst_flags_t);
6201 extern tree finish_compound_literal (tree, tree, tsubst_flags_t);
6202 extern tree finish_fname (tree);
6203 extern void finish_translation_unit (void);
6204 extern tree finish_template_type_parm (tree, tree);
6205 extern tree finish_template_template_parm (tree, tree);
6206 extern tree begin_class_definition (tree);
6207 extern void finish_template_decl (tree);
6208 extern tree finish_template_type (tree, tree, int);
6209 extern tree finish_base_specifier (tree, tree, bool);
6210 extern void finish_member_declaration (tree);
6211 extern bool outer_automatic_var_p (tree);
6212 extern tree process_outer_var_ref (tree, tsubst_flags_t);
6213 extern tree finish_id_expression (tree, tree, tree,
6214 cp_id_kind *,
6215 bool, bool, bool *,
6216 bool, bool, bool, bool,
6217 const char **,
6218 location_t);
6219 extern tree finish_typeof (tree);
6220 extern tree finish_underlying_type (tree);
6221 extern tree calculate_bases (tree);
6222 extern tree finish_bases (tree, bool);
6223 extern tree calculate_direct_bases (tree);
6224 extern tree finish_offsetof (tree, location_t);
6225 extern void finish_decl_cleanup (tree, tree);
6226 extern void finish_eh_cleanup (tree);
6227 extern void emit_associated_thunks (tree);
6228 extern void finish_mem_initializers (tree);
6229 extern tree check_template_template_default_arg (tree);
6230 extern bool expand_or_defer_fn_1 (tree);
6231 extern void expand_or_defer_fn (tree);
6232 extern void add_typedef_to_current_template_for_access_check (tree, tree,
6233 location_t);
6234 extern void check_accessibility_of_qualified_id (tree, tree, tree);
6235 extern tree finish_qualified_id_expr (tree, tree, bool, bool,
6236 bool, bool, tsubst_flags_t);
6237 extern void simplify_aggr_init_expr (tree *);
6238 extern void finalize_nrv (tree *, tree, tree);
6239 extern void note_decl_for_pch (tree);
6240 extern tree omp_reduction_id (enum tree_code, tree, tree);
6241 extern tree cp_remove_omp_priv_cleanup_stmt (tree *, int *, void *);
6242 extern void cp_check_omp_declare_reduction (tree);
6243 extern tree finish_omp_clauses (tree);
6244 extern void finish_omp_threadprivate (tree);
6245 extern tree begin_omp_structured_block (void);
6246 extern tree finish_omp_structured_block (tree);
6247 extern tree finish_oacc_data (tree, tree);
6248 extern tree finish_oacc_kernels (tree, tree);
6249 extern tree finish_oacc_parallel (tree, tree);
6250 extern tree begin_omp_parallel (void);
6251 extern tree finish_omp_parallel (tree, tree);
6252 extern tree begin_omp_task (void);
6253 extern tree finish_omp_task (tree, tree);
6254 extern tree finish_omp_for (location_t, enum tree_code,
6255 tree, tree, tree, tree, tree,
6256 tree, tree);
6257 extern void finish_omp_atomic (enum tree_code, enum tree_code,
6258 tree, tree, tree, tree, tree,
6259 bool);
6260 extern void finish_omp_barrier (void);
6261 extern void finish_omp_flush (void);
6262 extern void finish_omp_taskwait (void);
6263 extern void finish_omp_taskyield (void);
6264 extern void finish_omp_cancel (tree);
6265 extern void finish_omp_cancellation_point (tree);
6266 extern tree begin_transaction_stmt (location_t, tree *, int);
6267 extern void finish_transaction_stmt (tree, tree, int, tree);
6268 extern tree build_transaction_expr (location_t, tree, int, tree);
6269 extern bool cxx_omp_create_clause_info (tree, tree, bool, bool,
6270 bool, bool);
6271 extern tree baselink_for_fns (tree);
6272 extern void finish_static_assert (tree, tree, location_t,
6273 bool);
6274 extern tree finish_decltype_type (tree, bool, tsubst_flags_t);
6275 extern tree finish_trait_expr (enum cp_trait_kind, tree, tree);
6276 extern tree build_lambda_expr (void);
6277 extern tree build_lambda_object (tree);
6278 extern tree begin_lambda_type (tree);
6279 extern tree lambda_capture_field_type (tree, bool);
6280 extern tree lambda_return_type (tree);
6281 extern tree lambda_proxy_type (tree);
6282 extern tree lambda_function (tree);
6283 extern void apply_deduced_return_type (tree, tree);
6284 extern tree add_capture (tree, tree, tree, bool, bool);
6285 extern tree add_default_capture (tree, tree, tree);
6286 extern tree build_capture_proxy (tree);
6287 extern void insert_capture_proxy (tree);
6288 extern void insert_pending_capture_proxies (void);
6289 extern bool is_capture_proxy (tree);
6290 extern bool is_normal_capture_proxy (tree);
6291 extern void register_capture_members (tree);
6292 extern tree lambda_expr_this_capture (tree, bool);
6293 extern tree maybe_resolve_dummy (tree, bool);
6294 extern tree current_nonlambda_function (void);
6295 extern tree nonlambda_method_basetype (void);
6296 extern void maybe_add_lambda_conv_op (tree);
6297 extern bool is_lambda_ignored_entity (tree);
6299 /* in tree.c */
6300 extern int cp_tree_operand_length (const_tree);
6301 void cp_free_lang_data (tree t);
6302 extern tree force_target_expr (tree, tree, tsubst_flags_t);
6303 extern tree build_target_expr_with_type (tree, tree, tsubst_flags_t);
6304 extern void lang_check_failed (const char *, int,
6305 const char *) ATTRIBUTE_NORETURN;
6306 extern tree stabilize_expr (tree, tree *);
6307 extern void stabilize_call (tree, tree *);
6308 extern bool stabilize_init (tree, tree *);
6309 extern tree add_stmt_to_compound (tree, tree);
6310 extern void init_tree (void);
6311 extern bool pod_type_p (const_tree);
6312 extern bool layout_pod_type_p (const_tree);
6313 extern bool std_layout_type_p (const_tree);
6314 extern bool trivial_type_p (const_tree);
6315 extern bool trivially_copyable_p (const_tree);
6316 extern bool scalarish_type_p (const_tree);
6317 extern bool type_has_nontrivial_default_init (const_tree);
6318 extern bool type_has_nontrivial_copy_init (const_tree);
6319 extern bool class_tmpl_impl_spec_p (const_tree);
6320 extern int zero_init_p (const_tree);
6321 extern bool check_abi_tag_redeclaration (const_tree, const_tree, const_tree);
6322 extern bool check_abi_tag_args (tree, tree);
6323 extern tree strip_typedefs (tree);
6324 extern tree strip_typedefs_expr (tree);
6325 extern tree copy_binfo (tree, tree, tree,
6326 tree *, int);
6327 extern int member_p (const_tree);
6328 extern cp_lvalue_kind real_lvalue_p (const_tree);
6329 extern cp_lvalue_kind lvalue_kind (const_tree);
6330 extern bool lvalue_or_rvalue_with_address_p (const_tree);
6331 extern bool xvalue_p (const_tree);
6332 extern bool builtin_valid_in_constant_expr_p (const_tree);
6333 extern tree build_min (enum tree_code, tree, ...);
6334 extern tree build_min_nt_loc (location_t, enum tree_code,
6335 ...);
6336 extern tree build_min_non_dep (enum tree_code, tree, ...);
6337 extern tree build_min_non_dep_call_vec (tree, tree, vec<tree, va_gc> *);
6338 extern tree build_cplus_new (tree, tree, tsubst_flags_t);
6339 extern tree build_aggr_init_expr (tree, tree);
6340 extern tree get_target_expr (tree);
6341 extern tree get_target_expr_sfinae (tree, tsubst_flags_t);
6342 extern tree build_cplus_array_type (tree, tree);
6343 extern tree build_array_of_n_type (tree, int);
6344 extern bool array_of_runtime_bound_p (tree);
6345 extern tree build_array_copy (tree);
6346 extern tree build_vec_init_expr (tree, tree, tsubst_flags_t);
6347 extern void diagnose_non_constexpr_vec_init (tree);
6348 extern tree hash_tree_cons (tree, tree, tree);
6349 extern tree hash_tree_chain (tree, tree);
6350 extern tree build_qualified_name (tree, tree, tree, bool);
6351 extern tree build_ref_qualified_type (tree, cp_ref_qualifier);
6352 extern int is_overloaded_fn (tree);
6353 extern tree dependent_name (tree);
6354 extern tree get_fns (tree);
6355 extern tree get_first_fn (tree);
6356 extern tree ovl_cons (tree, tree);
6357 extern tree build_overload (tree, tree);
6358 extern tree ovl_scope (tree);
6359 extern bool non_static_member_function_p (tree);
6360 extern const char *cxx_printable_name (tree, int);
6361 extern const char *cxx_printable_name_translate (tree, int);
6362 extern tree build_exception_variant (tree, tree);
6363 extern tree bind_template_template_parm (tree, tree);
6364 extern tree array_type_nelts_total (tree);
6365 extern tree array_type_nelts_top (tree);
6366 extern tree break_out_target_exprs (tree);
6367 extern tree build_ctor_subob_ref (tree, tree, tree);
6368 extern tree replace_placeholders (tree, tree);
6369 extern tree get_type_decl (tree);
6370 extern tree decl_namespace_context (tree);
6371 extern bool decl_anon_ns_mem_p (const_tree);
6372 extern tree lvalue_type (tree);
6373 extern tree error_type (tree);
6374 extern int varargs_function_p (const_tree);
6375 extern bool really_overloaded_fn (tree);
6376 extern bool cp_tree_equal (tree, tree);
6377 extern tree no_linkage_check (tree, bool);
6378 extern void debug_binfo (tree);
6379 extern tree build_dummy_object (tree);
6380 extern tree maybe_dummy_object (tree, tree *);
6381 extern int is_dummy_object (const_tree);
6382 extern const struct attribute_spec cxx_attribute_table[];
6383 extern tree make_ptrmem_cst (tree, tree);
6384 extern tree cp_build_type_attribute_variant (tree, tree);
6385 extern tree cp_build_reference_type (tree, bool);
6386 extern tree move (tree);
6387 extern tree cp_build_qualified_type_real (tree, int, tsubst_flags_t);
6388 #define cp_build_qualified_type(TYPE, QUALS) \
6389 cp_build_qualified_type_real ((TYPE), (QUALS), tf_warning_or_error)
6390 extern bool cv_qualified_p (const_tree);
6391 extern tree cv_unqualified (tree);
6392 extern special_function_kind special_function_p (const_tree);
6393 extern int count_trees (tree);
6394 extern int char_type_p (tree);
6395 extern void verify_stmt_tree (tree);
6396 extern linkage_kind decl_linkage (tree);
6397 extern duration_kind decl_storage_duration (tree);
6398 extern tree cp_walk_subtrees (tree*, int*, walk_tree_fn,
6399 void*, hash_set<tree> *);
6400 #define cp_walk_tree(tp,func,data,pset) \
6401 walk_tree_1 (tp, func, data, pset, cp_walk_subtrees)
6402 #define cp_walk_tree_without_duplicates(tp,func,data) \
6403 walk_tree_without_duplicates_1 (tp, func, data, cp_walk_subtrees)
6404 extern tree fold_if_not_in_template (tree);
6405 extern tree rvalue (tree);
6406 extern tree convert_bitfield_to_declared_type (tree);
6407 extern tree cp_save_expr (tree);
6408 extern bool cast_valid_in_integral_constant_expression_p (tree);
6409 extern bool cxx_type_hash_eq (const_tree, const_tree);
6411 extern void cxx_print_statistics (void);
6412 extern bool maybe_warn_zero_as_null_pointer_constant (tree, location_t);
6414 /* in ptree.c */
6415 extern void cxx_print_xnode (FILE *, tree, int);
6416 extern void cxx_print_decl (FILE *, tree, int);
6417 extern void cxx_print_type (FILE *, tree, int);
6418 extern void cxx_print_identifier (FILE *, tree, int);
6419 extern void cxx_print_error_function (diagnostic_context *,
6420 const char *,
6421 struct diagnostic_info *);
6423 /* in typeck.c */
6424 extern bool cxx_mark_addressable (tree);
6425 extern int string_conv_p (const_tree, const_tree, int);
6426 extern tree cp_truthvalue_conversion (tree);
6427 extern tree condition_conversion (tree);
6428 extern tree require_complete_type (tree);
6429 extern tree require_complete_type_sfinae (tree, tsubst_flags_t);
6430 extern tree complete_type (tree);
6431 extern tree complete_type_or_else (tree, tree);
6432 extern tree complete_type_or_maybe_complain (tree, tree, tsubst_flags_t);
6433 extern int type_unknown_p (const_tree);
6434 enum { ce_derived, ce_normal, ce_exact };
6435 extern bool comp_except_specs (const_tree, const_tree, int);
6436 extern bool comptypes (tree, tree, int);
6437 extern bool same_type_ignoring_top_level_qualifiers_p (tree, tree);
6438 extern bool compparms (const_tree, const_tree);
6439 extern int comp_cv_qualification (const_tree, const_tree);
6440 extern int comp_cv_qualification (int, int);
6441 extern int comp_cv_qual_signature (tree, tree);
6442 extern tree cxx_sizeof_or_alignof_expr (tree, enum tree_code, bool);
6443 extern tree cxx_sizeof_or_alignof_type (tree, enum tree_code, bool);
6444 extern tree cxx_alignas_expr (tree);
6445 extern tree cxx_sizeof_nowarn (tree);
6446 extern tree is_bitfield_expr_with_lowered_type (const_tree);
6447 extern tree unlowered_expr_type (const_tree);
6448 extern tree decay_conversion (tree, tsubst_flags_t);
6449 extern tree build_class_member_access_expr (tree, tree, tree, bool,
6450 tsubst_flags_t);
6451 extern tree finish_class_member_access_expr (tree, tree, bool,
6452 tsubst_flags_t);
6453 extern tree build_x_indirect_ref (location_t, tree,
6454 ref_operator, tsubst_flags_t);
6455 extern tree cp_build_indirect_ref (tree, ref_operator,
6456 tsubst_flags_t);
6457 extern tree build_array_ref (location_t, tree, tree);
6458 extern tree cp_build_array_ref (location_t, tree, tree,
6459 tsubst_flags_t);
6460 extern tree get_member_function_from_ptrfunc (tree *, tree, tsubst_flags_t);
6461 extern tree cp_build_function_call_nary (tree, tsubst_flags_t, ...)
6462 ATTRIBUTE_SENTINEL;
6463 extern tree cp_build_function_call_vec (tree, vec<tree, va_gc> **,
6464 tsubst_flags_t);
6465 extern tree build_x_binary_op (location_t,
6466 enum tree_code, tree,
6467 enum tree_code, tree,
6468 enum tree_code, tree *,
6469 tsubst_flags_t);
6470 extern tree build_x_array_ref (location_t, tree, tree,
6471 tsubst_flags_t);
6472 extern tree build_x_unary_op (location_t,
6473 enum tree_code, tree,
6474 tsubst_flags_t);
6475 extern tree cp_build_addr_expr (tree, tsubst_flags_t);
6476 extern tree cp_build_unary_op (enum tree_code, tree, int,
6477 tsubst_flags_t);
6478 extern tree unary_complex_lvalue (enum tree_code, tree);
6479 extern tree build_x_conditional_expr (location_t, tree, tree, tree,
6480 tsubst_flags_t);
6481 extern tree build_x_compound_expr_from_list (tree, expr_list_kind,
6482 tsubst_flags_t);
6483 extern tree build_x_compound_expr_from_vec (vec<tree, va_gc> *,
6484 const char *, tsubst_flags_t);
6485 extern tree build_x_compound_expr (location_t, tree, tree,
6486 tsubst_flags_t);
6487 extern tree build_compound_expr (location_t, tree, tree);
6488 extern tree cp_build_compound_expr (tree, tree, tsubst_flags_t);
6489 extern tree build_static_cast (tree, tree, tsubst_flags_t);
6490 extern tree build_reinterpret_cast (tree, tree, tsubst_flags_t);
6491 extern tree build_const_cast (tree, tree, tsubst_flags_t);
6492 extern tree build_c_cast (location_t, tree, tree);
6493 extern tree cp_build_c_cast (tree, tree, tsubst_flags_t);
6494 extern tree build_x_modify_expr (location_t, tree,
6495 enum tree_code, tree,
6496 tsubst_flags_t);
6497 extern tree cp_build_modify_expr (tree, enum tree_code, tree,
6498 tsubst_flags_t);
6499 extern tree convert_for_initialization (tree, tree, tree, int,
6500 impl_conv_rhs, tree, int,
6501 tsubst_flags_t);
6502 extern int comp_ptr_ttypes (tree, tree);
6503 extern bool comp_ptr_ttypes_const (tree, tree);
6504 extern bool error_type_p (const_tree);
6505 extern bool ptr_reasonably_similar (const_tree, const_tree);
6506 extern tree build_ptrmemfunc (tree, tree, int, bool,
6507 tsubst_flags_t);
6508 extern int cp_type_quals (const_tree);
6509 extern int type_memfn_quals (const_tree);
6510 extern cp_ref_qualifier type_memfn_rqual (const_tree);
6511 extern tree apply_memfn_quals (tree, cp_cv_quals, cp_ref_qualifier);
6512 extern bool cp_has_mutable_p (const_tree);
6513 extern bool at_least_as_qualified_p (const_tree, const_tree);
6514 extern void cp_apply_type_quals_to_decl (int, tree);
6515 extern tree build_ptrmemfunc1 (tree, tree, tree);
6516 extern void expand_ptrmemfunc_cst (tree, tree *, tree *);
6517 extern tree type_after_usual_arithmetic_conversions (tree, tree);
6518 extern tree common_pointer_type (tree, tree);
6519 extern tree composite_pointer_type (tree, tree, tree, tree,
6520 composite_pointer_operation,
6521 tsubst_flags_t);
6522 extern tree merge_types (tree, tree);
6523 extern tree strip_array_domain (tree);
6524 extern tree check_return_expr (tree, bool *);
6525 extern tree cp_build_binary_op (location_t,
6526 enum tree_code, tree, tree,
6527 tsubst_flags_t);
6528 extern tree build_x_vec_perm_expr (location_t,
6529 tree, tree, tree,
6530 tsubst_flags_t);
6531 #define cxx_sizeof(T) cxx_sizeof_or_alignof_type (T, SIZEOF_EXPR, true)
6532 extern tree build_simple_component_ref (tree, tree);
6533 extern tree build_ptrmemfunc_access_expr (tree, tree);
6534 extern tree build_address (tree);
6535 extern tree build_nop (tree, tree);
6536 extern tree non_reference (tree);
6537 extern tree lookup_anon_field (tree, tree);
6538 extern bool invalid_nonstatic_memfn_p (tree, tsubst_flags_t);
6539 extern tree convert_member_func_to_ptr (tree, tree, tsubst_flags_t);
6540 extern tree convert_ptrmem (tree, tree, bool, bool,
6541 tsubst_flags_t);
6542 extern int lvalue_or_else (tree, enum lvalue_use,
6543 tsubst_flags_t);
6544 extern void check_template_keyword (tree);
6545 extern bool check_raw_literal_operator (const_tree decl);
6546 extern bool check_literal_operator_args (const_tree, bool *, bool *);
6547 extern void maybe_warn_about_useless_cast (tree, tree, tsubst_flags_t);
6548 extern tree cp_perform_integral_promotions (tree, tsubst_flags_t);
6550 /* in typeck2.c */
6551 extern void require_complete_eh_spec_types (tree, tree);
6552 extern void cxx_incomplete_type_diagnostic (const_tree, const_tree, diagnostic_t);
6553 #undef cxx_incomplete_type_error
6554 extern void cxx_incomplete_type_error (const_tree, const_tree);
6555 #define cxx_incomplete_type_error(V,T) \
6556 (cxx_incomplete_type_diagnostic ((V), (T), DK_ERROR))
6557 extern void cxx_incomplete_type_inform (const_tree);
6558 extern tree error_not_base_type (tree, tree);
6559 extern tree binfo_or_else (tree, tree);
6560 extern void cxx_readonly_error (tree, enum lvalue_use);
6561 extern void complete_type_check_abstract (tree);
6562 extern int abstract_virtuals_error (tree, tree);
6563 extern int abstract_virtuals_error (abstract_class_use, tree);
6564 extern int abstract_virtuals_error_sfinae (tree, tree, tsubst_flags_t);
6565 extern int abstract_virtuals_error_sfinae (abstract_class_use, tree, tsubst_flags_t);
6567 extern tree store_init_value (tree, tree, vec<tree, va_gc>**, int);
6568 extern tree split_nonconstant_init (tree, tree);
6569 extern bool check_narrowing (tree, tree, tsubst_flags_t);
6570 extern tree digest_init (tree, tree, tsubst_flags_t);
6571 extern tree digest_init_flags (tree, tree, int);
6572 extern tree digest_nsdmi_init (tree, tree);
6573 extern tree build_scoped_ref (tree, tree, tree *);
6574 extern tree build_x_arrow (location_t, tree,
6575 tsubst_flags_t);
6576 extern tree build_m_component_ref (tree, tree, tsubst_flags_t);
6577 extern tree build_functional_cast (tree, tree, tsubst_flags_t);
6578 extern tree add_exception_specifier (tree, tree, int);
6579 extern tree merge_exception_specifiers (tree, tree);
6581 /* in mangle.c */
6582 extern bool maybe_remove_implicit_alias (tree);
6583 extern void init_mangle (void);
6584 extern void mangle_decl (tree);
6585 extern const char *mangle_type_string (tree);
6586 extern tree mangle_typeinfo_for_type (tree);
6587 extern tree mangle_typeinfo_string_for_type (tree);
6588 extern tree mangle_vtbl_for_type (tree);
6589 extern tree mangle_vtt_for_type (tree);
6590 extern tree mangle_ctor_vtbl_for_type (tree, tree);
6591 extern tree mangle_thunk (tree, int, tree, tree);
6592 extern tree mangle_conv_op_name_for_type (tree);
6593 extern tree mangle_guard_variable (tree);
6594 extern tree mangle_tls_init_fn (tree);
6595 extern tree mangle_tls_wrapper_fn (tree);
6596 extern bool decl_tls_wrapper_p (tree);
6597 extern tree mangle_ref_init_variable (tree);
6598 extern char * get_mangled_vtable_map_var_name (tree);
6599 extern bool mangle_return_type_p (tree);
6601 /* in dump.c */
6602 extern bool cp_dump_tree (void *, tree);
6604 /* In cp/cp-objcp-common.c. */
6606 extern alias_set_type cxx_get_alias_set (tree);
6607 extern bool cxx_warn_unused_global_decl (const_tree);
6608 extern size_t cp_tree_size (enum tree_code);
6609 extern bool cp_var_mod_type_p (tree, tree);
6610 extern void cxx_initialize_diagnostics (diagnostic_context *);
6611 extern int cxx_types_compatible_p (tree, tree);
6612 extern void init_shadowed_var_for_decl (void);
6613 extern bool cxx_block_may_fallthru (const_tree);
6615 /* in cp-gimplify.c */
6616 extern int cp_gimplify_expr (tree *, gimple_seq *,
6617 gimple_seq *);
6618 extern void cp_genericize (tree);
6619 extern bool cxx_omp_const_qual_no_mutable (tree);
6620 extern enum omp_clause_default_kind cxx_omp_predetermined_sharing (tree);
6621 extern tree cxx_omp_clause_default_ctor (tree, tree, tree);
6622 extern tree cxx_omp_clause_copy_ctor (tree, tree, tree);
6623 extern tree cxx_omp_clause_assign_op (tree, tree, tree);
6624 extern tree cxx_omp_clause_dtor (tree, tree);
6625 extern void cxx_omp_finish_clause (tree, gimple_seq *);
6626 extern bool cxx_omp_privatize_by_reference (const_tree);
6628 /* in name-lookup.c */
6629 extern void suggest_alternatives_for (location_t, tree);
6630 extern tree strip_using_decl (tree);
6632 /* in constraint.cc */
6633 extern void init_constraint_processing ();
6634 extern bool constraint_p (tree);
6635 extern tree make_predicate_constraint (tree);
6636 extern tree conjoin_constraints (tree, tree);
6637 extern tree conjoin_constraints (tree);
6638 extern bool valid_constraints_p (tree);
6639 extern tree get_constraints (tree);
6640 extern void set_constraints (tree, tree);
6641 extern void remove_constraints (tree);
6642 extern tree associate_classtype_constraints (tree);
6643 extern tree build_constraints (tree, tree);
6644 extern tree get_shorthand_constraints (tree);
6645 extern tree build_concept_check (tree, tree, tree = NULL_TREE);
6646 extern tree build_constrained_parameter (tree, tree, tree = NULL_TREE);
6647 extern tree make_constrained_auto (tree, tree);
6648 extern bool deduce_constrained_parameter (tree, tree&, tree&);
6649 extern tree resolve_constraint_check (tree);
6650 extern tree check_function_concept (tree);
6651 extern tree finish_template_introduction (tree, tree);
6652 extern bool valid_requirements_p (tree);
6653 extern tree finish_concept_name (tree);
6654 extern tree finish_shorthand_constraint (tree, tree);
6655 extern tree finish_requires_expr (tree, tree);
6656 extern tree finish_simple_requirement (tree);
6657 extern tree finish_type_requirement (tree);
6658 extern tree finish_compound_requirement (tree, tree, bool);
6659 extern tree finish_nested_requirement (tree);
6660 extern void check_constrained_friend (tree, tree);
6661 extern tree tsubst_requires_expr (tree, tree, tsubst_flags_t, tree);
6662 extern tree tsubst_constraint (tree, tree, tsubst_flags_t, tree);
6663 extern tree tsubst_constraint_info (tree, tree, tsubst_flags_t, tree);
6664 extern bool function_concept_check_p (tree);
6666 extern tree evaluate_constraints (tree, tree);
6667 extern tree evaluate_function_concept (tree, tree);
6668 extern tree evaluate_variable_concept (tree, tree);
6669 extern tree evaluate_constraint_expression (tree, tree);
6670 extern bool constraints_satisfied_p (tree);
6671 extern bool constraints_satisfied_p (tree, tree);
6673 extern bool equivalent_constraints (tree, tree);
6674 extern bool equivalently_constrained (tree, tree);
6675 extern bool subsumes_constraints (tree, tree);
6676 extern int more_constrained (tree, tree);
6678 extern void diagnose_constraints (location_t, tree, tree);
6680 /* in logic.cc */
6681 extern tree decompose_assumptions (tree);
6682 extern tree decompose_conclusions (tree);
6683 extern bool subsumes (tree, tree);
6685 /* in vtable-class-hierarchy.c */
6686 extern void vtv_compute_class_hierarchy_transitive_closure (void);
6687 extern void vtv_generate_init_routine (void);
6688 extern void vtv_save_class_info (tree);
6689 extern void vtv_recover_class_info (void);
6690 extern void vtv_build_vtable_verify_fndecl (void);
6692 /* In cp-cilkplus.c. */
6693 extern bool cpp_validate_cilk_plus_loop (tree);
6695 /* In cp/cp-array-notations.c */
6696 extern tree expand_array_notation_exprs (tree);
6697 bool cilkplus_an_triplet_types_ok_p (location_t, tree, tree, tree,
6698 tree);
6700 /* In constexpr.c */
6701 extern bool literal_type_p (tree);
6702 extern tree register_constexpr_fundef (tree, tree);
6703 extern bool check_constexpr_ctor_body (tree, tree, bool);
6704 extern tree ensure_literal_type_for_constexpr_object (tree);
6705 extern bool potential_constant_expression (tree);
6706 extern bool potential_static_init_expression (tree);
6707 extern bool potential_rvalue_constant_expression (tree);
6708 extern bool require_potential_constant_expression (tree);
6709 extern bool require_potential_rvalue_constant_expression (tree);
6710 extern tree cxx_constant_value (tree, tree = NULL_TREE);
6711 extern tree maybe_constant_value (tree, tree = NULL_TREE);
6712 extern tree maybe_constant_init (tree, tree = NULL_TREE);
6713 extern tree fold_non_dependent_expr (tree);
6714 extern bool is_sub_constant_expr (tree);
6715 extern bool reduced_constant_expression_p (tree);
6716 extern bool is_instantiation_of_constexpr (tree);
6717 extern bool var_in_constexpr_fn (tree);
6718 extern void explain_invalid_constexpr_fn (tree);
6719 extern vec<tree> cx_error_context (void);
6721 /* In c-family/cilk.c */
6722 extern bool cilk_valid_spawn (tree);
6724 /* In cp-ubsan.c */
6725 extern void cp_ubsan_maybe_instrument_member_call (tree);
6726 extern void cp_ubsan_instrument_member_accesses (tree *);
6727 extern tree cp_ubsan_maybe_instrument_downcast (location_t, tree, tree);
6728 extern tree cp_ubsan_maybe_instrument_cast_to_vbase (location_t, tree, tree);
6730 /* -- end of C++ */
6732 #endif /* ! GCC_CP_TREE_H */