1 /* Definitions for C++ parsing and type checking.
2 Copyright (C) 1987, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
4 Free Software Foundation, Inc.
5 Contributed by Michael Tiemann (tiemann@cygnus.com)
7 This file is part of GCC.
9 GCC is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3, or (at your option)
14 GCC is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with GCC; see the file COPYING3. If not see
21 <http://www.gnu.org/licenses/>. */
29 #include "splay-tree.h"
33 #include "name-lookup.h"
35 /* In order for the format checking to accept the C++ front end
36 diagnostic framework extensions, you must include this file before
37 toplev.h, not after. We override the definition of GCC_DIAG_STYLE
40 #define GCC_DIAG_STYLE __gcc_cxxdiag__
41 #if GCC_VERSION >= 4001
42 #define ATTRIBUTE_GCC_CXXDIAG(m, n) __attribute__ ((__format__ (GCC_DIAG_STYLE, m, n))) ATTRIBUTE_NONNULL(m)
44 #define ATTRIBUTE_GCC_CXXDIAG(m, n) ATTRIBUTE_NONNULL(m)
48 In order for the format checking to accept the C++ front end diagnostic \
49 framework extensions, you must include this file before toplev.h, not after.
52 #include "diagnostic.h"
54 /* Usage of TREE_LANG_FLAG_?:
55 0: IDENTIFIER_MARKED (IDENTIFIER_NODEs)
56 NEW_EXPR_USE_GLOBAL (in NEW_EXPR).
57 DELETE_EXPR_USE_GLOBAL (in DELETE_EXPR).
58 COMPOUND_EXPR_OVERLOADED (in COMPOUND_EXPR).
59 TREE_INDIRECT_USING (in NAMESPACE_DECL).
60 CLEANUP_P (in TRY_BLOCK)
61 AGGR_INIT_VIA_CTOR_P (in AGGR_INIT_EXPR)
62 PTRMEM_OK_P (in ADDR_EXPR, OFFSET_REF)
63 PAREN_STRING_LITERAL (in STRING_CST)
64 DECL_PRETTY_FUNCTION_P (in VAR_DECL)
65 KOENIG_LOOKUP_P (in CALL_EXPR)
66 STATEMENT_LIST_NO_SCOPE (in STATEMENT_LIST).
67 EXPR_STMT_STMT_EXPR_RESULT (in EXPR_STMT)
68 STMT_EXPR_NO_SCOPE (in STMT_EXPR)
69 BIND_EXPR_TRY_BLOCK (in BIND_EXPR)
70 TYPENAME_IS_ENUM_P (in TYPENAME_TYPE)
71 REFERENCE_REF_P (in INDIRECT_EXPR)
72 QUALIFIED_NAME_IS_TEMPLATE (in SCOPE_REF)
73 OMP_FOR_GIMPLIFYING_P (in OMP_FOR)
74 BASELINK_QUALIFIED_P (in BASELINK)
75 TARGET_EXPR_IMPLICIT_P (in TARGET_EXPR)
76 TEMPLATE_PARM_PARAMETER_PACK (in TEMPLATE_PARM_INDEX)
77 TYPE_REF_IS_RVALUE (in REFERENCE_TYPE)
78 ATTR_IS_DEPENDENT (in the TREE_LIST for an attribute)
79 CONSTRUCTOR_IS_DIRECT_INIT (in CONSTRUCTOR)
80 LAMBDA_EXPR_CAPTURES_THIS_P (in LAMBDA_EXPR)
81 DECLTYPE_FOR_LAMBDA_CAPTURE (in DECLTYPE_TYPE)
82 1: IDENTIFIER_VIRTUAL_P (in IDENTIFIER_NODE)
83 TI_PENDING_TEMPLATE_FLAG.
84 TEMPLATE_PARMS_FOR_INLINE.
85 DELETE_EXPR_USE_VEC (in DELETE_EXPR).
86 (TREE_CALLS_NEW) (in _EXPR or _REF) (commented-out).
87 ICS_ELLIPSIS_FLAG (in _CONV)
88 DECL_INITIALIZED_P (in VAR_DECL)
89 TYPENAME_IS_CLASS_P (in TYPENAME_TYPE)
90 STMT_IS_FULL_EXPR_P (in _STMT)
91 TARGET_EXPR_LIST_INIT_P (in TARGET_EXPR)
92 LAMBDA_EXPR_MUTABLE_P (in LAMBDA_EXPR)
93 DECLTYPE_FOR_LAMBDA_RETURN (in DECLTYPE_TYPE)
94 2: IDENTIFIER_OPNAME_P (in IDENTIFIER_NODE)
95 ICS_THIS_FLAG (in _CONV)
96 DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (in VAR_DECL)
97 STATEMENT_LIST_TRY_BLOCK (in STATEMENT_LIST)
98 TYPENAME_IS_RESOLVING_P (in TYPE_NAME_TYPE)
99 LAMBDA_EXPR_DEDUCE_RETURN_TYPE_P (in LAMBDA_EXPR)
100 TARGET_EXPR_DIRECT_INIT_P (in TARGET_EXPR)
101 3: (TREE_REFERENCE_EXPR) (in NON_LVALUE_EXPR) (commented-out).
102 ICS_BAD_FLAG (in _CONV)
103 FN_TRY_BLOCK_P (in TRY_BLOCK)
104 IDENTIFIER_CTOR_OR_DTOR_P (in IDENTIFIER_NODE)
105 BIND_EXPR_BODY_BLOCK (in BIND_EXPR)
106 DECL_NON_TRIVIALLY_INITIALIZED_P (in VAR_DECL)
107 4: TREE_HAS_CONSTRUCTOR (in INDIRECT_REF, SAVE_EXPR, CONSTRUCTOR,
109 IDENTIFIER_TYPENAME_P (in IDENTIFIER_NODE)
110 DECL_TINFO_P (in VAR_DECL)
111 5: C_IS_RESERVED_WORD (in IDENTIFIER_NODE)
112 DECL_VTABLE_OR_VTT_P (in VAR_DECL)
113 6: IDENTIFIER_REPO_CHOSEN (in IDENTIFIER_NODE)
114 DECL_CONSTRUCTION_VTABLE_P (in VAR_DECL)
115 TYPE_MARKED_P (in _TYPE)
117 Usage of TYPE_LANG_FLAG_?:
119 1: TYPE_HAS_USER_CONSTRUCTOR.
122 4: TYPE_HAS_NONTRIVIAL_DESTRUCTOR
123 5: CLASS_TYPE_P (in RECORD_TYPE and UNION_TYPE)
124 SCOPED_ENUM_P (in ENUMERAL_TYPE)
125 6: TYPE_DEPENDENT_P_VALID
127 Usage of DECL_LANG_FLAG_?:
128 0: DECL_ERROR_REPORTED (in VAR_DECL).
129 DECL_TEMPLATE_PARM_P (in PARM_DECL, CONST_DECL, TYPE_DECL, or TEMPLATE_DECL)
130 DECL_LOCAL_FUNCTION_P (in FUNCTION_DECL)
131 DECL_MUTABLE_P (in FIELD_DECL)
132 DECL_DEPENDENT_P (in USING_DECL)
133 1: C_TYPEDEF_EXPLICITLY_SIGNED (in TYPE_DECL).
134 DECL_TEMPLATE_INSTANTIATED (in a VAR_DECL or a FUNCTION_DECL)
135 DECL_MEMBER_TEMPLATE_P (in TEMPLATE_DECL)
136 FUNCTION_PARAMETER_PACK_P (in PARM_DECL)
137 2: DECL_THIS_EXTERN (in VAR_DECL or FUNCTION_DECL).
138 DECL_IMPLICIT_TYPEDEF_P (in a TYPE_DECL)
140 4: DECL_C_BIT_FIELD (in a FIELD_DECL)
141 DECL_ANON_UNION_VAR_P (in a VAR_DECL)
142 DECL_SELF_REFERENCE_P (in a TYPE_DECL)
143 DECL_INVALID_OVERRIDER_P (in a FUNCTION_DECL)
144 5: DECL_INTERFACE_KNOWN.
145 6: DECL_THIS_STATIC (in VAR_DECL or FUNCTION_DECL).
146 DECL_FIELD_IS_BASE (in FIELD_DECL)
147 7: DECL_DEAD_FOR_LOCAL (in VAR_DECL).
148 DECL_THUNK_P (in a member FUNCTION_DECL)
149 DECL_NORMAL_CAPTURE_P (in FIELD_DECL)
150 8: DECL_DECLARED_CONSTEXPR_P (in VAR_DECL, FUNCTION_DECL)
152 Usage of language-independent fields in a language-dependent manner:
155 This field is used by TYPENAME_TYPEs, TEMPLATE_TYPE_PARMs, and so
156 forth as a substitute for the mark bits provided in `lang_type'.
157 At present, only the six low-order bits are used.
160 For an ENUMERAL_TYPE, this is ENUM_TEMPLATE_INFO.
161 For a FUNCTION_TYPE or METHOD_TYPE, this is TYPE_RAISES_EXCEPTIONS
164 For a binfo, this is a TREE_LIST. There is an entry for each
165 virtual function declared either in BINFO or its direct and
166 indirect primary bases.
168 The BV_DELTA of each node gives the amount by which to adjust the
169 `this' pointer when calling the function. If the method is an
170 overridden version of a base class method, then it is assumed
171 that, prior to adjustment, the this pointer points to an object
174 The BV_VCALL_INDEX of each node, if non-NULL, gives the vtable
175 index of the vcall offset for this entry.
177 The BV_FN is the declaration for the virtual function itself.
180 This is an expression with POINTER_TYPE that gives the value
181 to which the vptr should be initialized. Use get_vtbl_decl_for_binfo
182 to extract the VAR_DECL for the complete vtable.
185 This field is NULL for a non-virtual function. For a virtual
186 function, it is eventually set to an INTEGER_CST indicating the
187 index in the vtable at which this function can be found. When
188 a virtual function is declared, but before it is known what
189 function is overridden, this field is the error_mark_node.
191 Temporarily, it may be set to a TREE_LIST whose TREE_VALUE is
192 the virtual function this one overrides, and whose TREE_CHAIN is
193 the old DECL_VINDEX. */
195 /* Language-specific tree checkers. */
197 #define VAR_OR_FUNCTION_DECL_CHECK(NODE) \
198 TREE_CHECK2(NODE,VAR_DECL,FUNCTION_DECL)
200 #define VAR_FUNCTION_OR_PARM_DECL_CHECK(NODE) \
201 TREE_CHECK3(NODE,VAR_DECL,FUNCTION_DECL,PARM_DECL)
203 #define VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK(NODE) \
204 TREE_CHECK4(NODE,VAR_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL)
206 #define BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK(NODE) \
207 TREE_CHECK(NODE,BOUND_TEMPLATE_TEMPLATE_PARM)
209 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
210 #define THUNK_FUNCTION_CHECK(NODE) __extension__ \
211 ({ __typeof (NODE) const __t = (NODE); \
212 if (TREE_CODE (__t) != FUNCTION_DECL || !__t->decl_common.lang_specific \
213 || !__t->decl_common.lang_specific->u.fn.thunk_p) \
214 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, 0); \
217 #define THUNK_FUNCTION_CHECK(NODE) (NODE)
220 /* Language-dependent contents of an identifier. */
222 struct GTY(()) lang_identifier {
223 struct c_common_identifier c_common;
224 cxx_binding *namespace_bindings;
225 cxx_binding *bindings;
226 tree class_template_info;
230 /* In an IDENTIFIER_NODE, nonzero if this identifier is actually a
231 keyword. C_RID_CODE (node) is then the RID_* value of the keyword,
232 and C_RID_YYCODE is the token number wanted by Yacc. */
234 #define C_IS_RESERVED_WORD(ID) TREE_LANG_FLAG_5 (ID)
236 #define LANG_IDENTIFIER_CAST(NODE) \
237 ((struct lang_identifier*)IDENTIFIER_NODE_CHECK (NODE))
239 struct GTY(()) template_parm_index_s {
240 struct tree_common common;
246 typedef struct template_parm_index_s template_parm_index;
248 struct GTY(()) ptrmem_cst {
249 struct tree_common common;
250 /* This isn't used, but the middle-end expects all constants to have
255 typedef struct ptrmem_cst * ptrmem_cst_t;
257 #define IDENTIFIER_GLOBAL_VALUE(NODE) \
258 namespace_binding ((NODE), global_namespace)
259 #define SET_IDENTIFIER_GLOBAL_VALUE(NODE, VAL) \
260 set_namespace_binding ((NODE), global_namespace, (VAL))
261 #define IDENTIFIER_NAMESPACE_VALUE(NODE) \
262 namespace_binding ((NODE), current_namespace)
263 #define SET_IDENTIFIER_NAMESPACE_VALUE(NODE, VAL) \
264 set_namespace_binding ((NODE), current_namespace, (VAL))
266 #define CLEANUP_P(NODE) TREE_LANG_FLAG_0 (TRY_BLOCK_CHECK (NODE))
268 #define BIND_EXPR_TRY_BLOCK(NODE) \
269 TREE_LANG_FLAG_0 (BIND_EXPR_CHECK (NODE))
271 /* Used to mark the block around the member initializers and cleanups. */
272 #define BIND_EXPR_BODY_BLOCK(NODE) \
273 TREE_LANG_FLAG_3 (BIND_EXPR_CHECK (NODE))
274 #define FUNCTION_NEEDS_BODY_BLOCK(NODE) \
275 (DECL_CONSTRUCTOR_P (NODE) || DECL_DESTRUCTOR_P (NODE))
277 #define STATEMENT_LIST_NO_SCOPE(NODE) \
278 TREE_LANG_FLAG_0 (STATEMENT_LIST_CHECK (NODE))
279 #define STATEMENT_LIST_TRY_BLOCK(NODE) \
280 TREE_LANG_FLAG_2 (STATEMENT_LIST_CHECK (NODE))
282 /* Nonzero if this statement should be considered a full-expression,
283 i.e., if temporaries created during this statement should have
284 their destructors run at the end of this statement. */
285 #define STMT_IS_FULL_EXPR_P(NODE) TREE_LANG_FLAG_1 ((NODE))
287 /* Marks the result of a statement expression. */
288 #define EXPR_STMT_STMT_EXPR_RESULT(NODE) \
289 TREE_LANG_FLAG_0 (EXPR_STMT_CHECK (NODE))
291 /* Nonzero if this statement-expression does not have an associated scope. */
292 #define STMT_EXPR_NO_SCOPE(NODE) \
293 TREE_LANG_FLAG_0 (STMT_EXPR_CHECK (NODE))
295 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, in the usual
297 #define same_type_p(TYPE1, TYPE2) \
298 comptypes ((TYPE1), (TYPE2), COMPARE_STRICT)
300 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, ignoring
301 top-level qualifiers. */
302 #define same_type_ignoring_top_level_qualifiers_p(TYPE1, TYPE2) \
303 same_type_p (TYPE_MAIN_VARIANT (TYPE1), TYPE_MAIN_VARIANT (TYPE2))
305 /* Nonzero if we are presently building a statement tree, rather
306 than expanding each statement as we encounter it. */
307 #define building_stmt_tree() (cur_stmt_list != NULL_TREE)
309 /* Returns nonzero iff NODE is a declaration for the global function
311 #define DECL_MAIN_P(NODE) \
312 (DECL_EXTERN_C_FUNCTION_P (NODE) \
313 && DECL_NAME (NODE) != NULL_TREE \
314 && MAIN_NAME_P (DECL_NAME (NODE)) \
317 /* The overloaded FUNCTION_DECL. */
318 #define OVL_FUNCTION(NODE) \
319 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->function)
320 #define OVL_CHAIN(NODE) TREE_CHAIN (NODE)
321 /* Polymorphic access to FUNCTION and CHAIN. */
322 #define OVL_CURRENT(NODE) \
323 ((TREE_CODE (NODE) == OVERLOAD) ? OVL_FUNCTION (NODE) : (NODE))
324 #define OVL_NEXT(NODE) \
325 ((TREE_CODE (NODE) == OVERLOAD) ? TREE_CHAIN (NODE) : NULL_TREE)
326 /* If set, this was imported in a using declaration.
327 This is not to confuse with being used somewhere, which
328 is not important for this node. */
329 #define OVL_USED(NODE) TREE_USED (NODE)
331 struct GTY(()) tree_overload {
332 struct tree_common common;
336 /* Returns true iff NODE is a BASELINK. */
337 #define BASELINK_P(NODE) \
338 (TREE_CODE (NODE) == BASELINK)
339 /* The BINFO indicating the base from which the BASELINK_FUNCTIONS came. */
340 #define BASELINK_BINFO(NODE) \
341 (((struct tree_baselink*) BASELINK_CHECK (NODE))->binfo)
342 /* The functions referred to by the BASELINK; either a FUNCTION_DECL,
343 a TEMPLATE_DECL, an OVERLOAD, or a TEMPLATE_ID_EXPR. */
344 #define BASELINK_FUNCTIONS(NODE) \
345 (((struct tree_baselink*) BASELINK_CHECK (NODE))->functions)
346 /* The BINFO in which the search for the functions indicated by this baselink
347 began. This base is used to determine the accessibility of functions
348 selected by overload resolution. */
349 #define BASELINK_ACCESS_BINFO(NODE) \
350 (((struct tree_baselink*) BASELINK_CHECK (NODE))->access_binfo)
351 /* For a type-conversion operator, the BASELINK_OPTYPE indicates the type
352 to which the conversion should occur. This value is important if
353 the BASELINK_FUNCTIONS include a template conversion operator --
354 the BASELINK_OPTYPE can be used to determine what type the user
356 #define BASELINK_OPTYPE(NODE) \
357 (TREE_CHAIN (BASELINK_CHECK (NODE)))
358 /* Nonzero if this baselink was from a qualified lookup. */
359 #define BASELINK_QUALIFIED_P(NODE) \
360 TREE_LANG_FLAG_0 (BASELINK_CHECK (NODE))
362 struct GTY(()) tree_baselink {
363 struct tree_common common;
369 /* The different kinds of ids that we encounter. */
371 typedef enum cp_id_kind
373 /* Not an id at all. */
375 /* An unqualified-id that is not a template-id. */
376 CP_ID_KIND_UNQUALIFIED,
377 /* An unqualified-id that is a dependent name. */
378 CP_ID_KIND_UNQUALIFIED_DEPENDENT,
379 /* An unqualified template-id. */
380 CP_ID_KIND_TEMPLATE_ID,
381 /* A qualified-id. */
386 /* The various kinds of C++0x warnings we encounter. */
388 typedef enum cpp0x_warn_str
390 /* extended initializer lists */
391 CPP0X_INITIALIZER_LISTS,
392 /* explicit conversion operators */
393 CPP0X_EXPLICIT_CONVERSION,
394 /* variadic templates */
395 CPP0X_VARIADIC_TEMPLATES,
396 /* lambda expressions */
402 /* defaulted and deleted functions */
403 CPP0X_DEFAULTED_DELETED
406 /* The various kinds of operation used by composite_pointer_type. */
408 typedef enum composite_pointer_operation
414 /* conditional expression */
416 } composite_pointer_operation;
418 /* The various readonly error string used by readonly_error. */
419 typedef enum readonly_error_kind
423 /* assignment (via 'asm' output) */
429 } readonly_error_kind;
431 /* Macros for access to language-specific slots in an identifier. */
433 #define IDENTIFIER_NAMESPACE_BINDINGS(NODE) \
434 (LANG_IDENTIFIER_CAST (NODE)->namespace_bindings)
435 #define IDENTIFIER_TEMPLATE(NODE) \
436 (LANG_IDENTIFIER_CAST (NODE)->class_template_info)
438 /* The IDENTIFIER_BINDING is the innermost cxx_binding for the
439 identifier. It's PREVIOUS is the next outermost binding. Each
440 VALUE field is a DECL for the associated declaration. Thus,
441 name lookup consists simply of pulling off the node at the front
442 of the list (modulo oddities for looking up the names of types,
443 and such.) You can use SCOPE field to determine the scope
444 that bound the name. */
445 #define IDENTIFIER_BINDING(NODE) \
446 (LANG_IDENTIFIER_CAST (NODE)->bindings)
448 /* TREE_TYPE only indicates on local and class scope the current
449 type. For namespace scope, the presence of a type in any namespace
450 is indicated with global_type_node, and the real type behind must
451 be found through lookup. */
452 #define IDENTIFIER_TYPE_VALUE(NODE) identifier_type_value (NODE)
453 #define REAL_IDENTIFIER_TYPE_VALUE(NODE) TREE_TYPE (NODE)
454 #define SET_IDENTIFIER_TYPE_VALUE(NODE,TYPE) (TREE_TYPE (NODE) = (TYPE))
455 #define IDENTIFIER_HAS_TYPE_VALUE(NODE) (IDENTIFIER_TYPE_VALUE (NODE) ? 1 : 0)
457 #define IDENTIFIER_LABEL_VALUE(NODE) \
458 (LANG_IDENTIFIER_CAST (NODE)->label_value)
459 #define SET_IDENTIFIER_LABEL_VALUE(NODE, VALUE) \
460 IDENTIFIER_LABEL_VALUE (NODE) = (VALUE)
462 /* Nonzero if this identifier is used as a virtual function name somewhere
463 (optimizes searches). */
464 #define IDENTIFIER_VIRTUAL_P(NODE) TREE_LANG_FLAG_1 (NODE)
466 /* Nonzero if this identifier is the prefix for a mangled C++ operator
468 #define IDENTIFIER_OPNAME_P(NODE) TREE_LANG_FLAG_2 (NODE)
470 /* Nonzero if this identifier is the name of a type-conversion
472 #define IDENTIFIER_TYPENAME_P(NODE) \
473 TREE_LANG_FLAG_4 (NODE)
475 /* Nonzero if this identifier is the name of a constructor or
477 #define IDENTIFIER_CTOR_OR_DTOR_P(NODE) \
478 TREE_LANG_FLAG_3 (NODE)
480 /* True iff NAME is the DECL_ASSEMBLER_NAME for an entity with vague
481 linkage which the prelinker has assigned to this translation
483 #define IDENTIFIER_REPO_CHOSEN(NAME) \
484 (TREE_LANG_FLAG_6 (NAME))
486 /* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */
487 #define C_TYPE_FIELDS_READONLY(TYPE) \
488 (LANG_TYPE_CLASS_CHECK (TYPE)->fields_readonly)
490 /* The tokens stored in the default argument. */
492 #define DEFARG_TOKENS(NODE) \
493 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->tokens)
494 #define DEFARG_INSTANTIATIONS(NODE) \
495 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->instantiations)
497 struct GTY (()) tree_default_arg {
498 struct tree_common common;
499 struct cp_token_cache *tokens;
500 VEC(tree,gc) *instantiations;
503 /* The condition associated with the static assertion. This must be
504 an integral constant expression. */
505 #define STATIC_ASSERT_CONDITION(NODE) \
506 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->condition)
508 /* The message associated with the static assertion. This must be a
509 string constant, which will be emitted as an error message when the
510 static assert condition is false. */
511 #define STATIC_ASSERT_MESSAGE(NODE) \
512 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->message)
514 /* Source location information for a static assertion. */
515 #define STATIC_ASSERT_SOURCE_LOCATION(NODE) \
516 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->location)
518 struct GTY (()) tree_static_assert {
519 struct tree_common common;
525 struct GTY (()) tree_argument_pack_select {
526 struct tree_common common;
531 /* The different kinds of traits that we encounter. */
533 typedef enum cp_trait_kind
535 CPTK_HAS_NOTHROW_ASSIGN,
536 CPTK_HAS_NOTHROW_CONSTRUCTOR,
537 CPTK_HAS_NOTHROW_COPY,
538 CPTK_HAS_TRIVIAL_ASSIGN,
539 CPTK_HAS_TRIVIAL_CONSTRUCTOR,
540 CPTK_HAS_TRIVIAL_COPY,
541 CPTK_HAS_TRIVIAL_DESTRUCTOR,
542 CPTK_HAS_VIRTUAL_DESTRUCTOR,
546 CPTK_IS_CONVERTIBLE_TO,
556 /* The types that we are processing. */
557 #define TRAIT_EXPR_TYPE1(NODE) \
558 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type1)
560 #define TRAIT_EXPR_TYPE2(NODE) \
561 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type2)
563 /* The specific trait that we are processing. */
564 #define TRAIT_EXPR_KIND(NODE) \
565 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->kind)
567 struct GTY (()) tree_trait_expr {
568 struct tree_common common;
571 enum cp_trait_kind kind;
574 /* Based off of TYPE_ANONYMOUS_P. */
575 #define LAMBDA_TYPE_P(NODE) \
576 (CLASS_TYPE_P (NODE) && LAMBDANAME_P (TYPE_LINKAGE_IDENTIFIER (NODE)))
578 /* Test if FUNCTION_DECL is a lambda function. */
579 #define LAMBDA_FUNCTION_P(FNDECL) \
580 (DECL_OVERLOADED_OPERATOR_P (FNDECL) == CALL_EXPR \
581 && LAMBDA_TYPE_P (CP_DECL_CONTEXT (FNDECL)))
583 enum cp_lambda_default_capture_mode_type {
589 /* The method of default capture, if any. */
590 #define LAMBDA_EXPR_DEFAULT_CAPTURE_MODE(NODE) \
591 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->default_capture_mode)
593 /* The capture-list, including `this'. Each capture is stored as a FIELD_DECL
594 * so that the name, type, and field are all together, whether or not it has
595 * been added to the lambda's class type.
597 TREE_PURPOSE: The FIELD_DECL for this capture.
598 TREE_VALUE: The initializer. This is part of a GNU extension. */
599 #define LAMBDA_EXPR_CAPTURE_LIST(NODE) \
600 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->capture_list)
602 /* The node in the capture-list that holds the 'this' capture. */
603 #define LAMBDA_EXPR_THIS_CAPTURE(NODE) \
604 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->this_capture)
606 /* Predicate tracking whether `this' is in the effective capture set. */
607 #define LAMBDA_EXPR_CAPTURES_THIS_P(NODE) \
608 LAMBDA_EXPR_THIS_CAPTURE(NODE)
610 /* Predicate tracking whether the lambda was declared 'mutable'. */
611 #define LAMBDA_EXPR_MUTABLE_P(NODE) \
612 TREE_LANG_FLAG_1 (LAMBDA_EXPR_CHECK (NODE))
614 /* True iff we should try to deduce the lambda return type from any return
616 #define LAMBDA_EXPR_DEDUCE_RETURN_TYPE_P(NODE) \
617 TREE_LANG_FLAG_2 (LAMBDA_EXPR_CHECK (NODE))
619 /* The return type in the expression.
620 * NULL_TREE indicates that none was specified. */
621 #define LAMBDA_EXPR_RETURN_TYPE(NODE) \
622 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->return_type)
624 /* The source location of the lambda. */
625 #define LAMBDA_EXPR_LOCATION(NODE) \
626 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->locus)
628 /* The mangling scope for the lambda: FUNCTION_DECL, PARM_DECL, VAR_DECL,
629 FIELD_DECL or NULL_TREE. If this is NULL_TREE, we have no linkage. */
630 #define LAMBDA_EXPR_EXTRA_SCOPE(NODE) \
631 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->extra_scope)
633 /* If EXTRA_SCOPE, this is the number of the lambda within that scope. */
634 #define LAMBDA_EXPR_DISCRIMINATOR(NODE) \
635 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->discriminator)
637 struct GTY (()) tree_lambda_expr
639 struct tree_common common;
641 enum cp_lambda_default_capture_mode_type default_capture_mode;
649 /* A (typedef,context,usage location) triplet.
650 It represents a typedef used through a
651 context at a given source location.
658 foo::myint v; // #1<-- this location.
661 In bar, the triplet will be (myint, foo, #1).
663 struct GTY(()) qualified_typedef_usage_s {
668 typedef struct qualified_typedef_usage_s qualified_typedef_usage_t;
669 DEF_VEC_O (qualified_typedef_usage_t);
670 DEF_VEC_ALLOC_O (qualified_typedef_usage_t,gc);
672 struct GTY(()) tree_template_info {
673 struct tree_common common;
674 VEC(qualified_typedef_usage_t,gc) *typedefs_needing_access_checking;
677 enum cp_tree_node_structure_enum {
688 TS_CP_ARGUMENT_PACK_SELECT,
695 /* The resulting tree type. */
696 union GTY((desc ("cp_tree_node_structure (&%h)"),
697 chain_next ("(union lang_tree_node *)TREE_CHAIN (&%h.generic)"))) lang_tree_node {
698 union tree_node GTY ((tag ("TS_CP_GENERIC"),
699 desc ("tree_node_structure (&%h)"))) generic;
700 struct template_parm_index_s GTY ((tag ("TS_CP_TPI"))) tpi;
701 struct ptrmem_cst GTY ((tag ("TS_CP_PTRMEM"))) ptrmem;
702 struct tree_overload GTY ((tag ("TS_CP_OVERLOAD"))) overload;
703 struct tree_baselink GTY ((tag ("TS_CP_BASELINK"))) baselink;
704 struct tree_default_arg GTY ((tag ("TS_CP_DEFAULT_ARG"))) default_arg;
705 struct lang_identifier GTY ((tag ("TS_CP_IDENTIFIER"))) identifier;
706 struct tree_static_assert GTY ((tag ("TS_CP_STATIC_ASSERT")))
708 struct tree_argument_pack_select GTY ((tag ("TS_CP_ARGUMENT_PACK_SELECT")))
709 argument_pack_select;
710 struct tree_trait_expr GTY ((tag ("TS_CP_TRAIT_EXPR")))
712 struct tree_lambda_expr GTY ((tag ("TS_CP_LAMBDA_EXPR")))
714 struct tree_template_info GTY ((tag ("TS_CP_TEMPLATE_INFO")))
722 CPTI_JAVA_SHORT_TYPE,
725 CPTI_JAVA_FLOAT_TYPE,
726 CPTI_JAVA_DOUBLE_TYPE,
728 CPTI_JAVA_BOOLEAN_TYPE,
731 CPTI_VTABLE_ENTRY_TYPE,
733 CPTI_VTABLE_INDEX_TYPE,
744 CPTI_CONST_TYPE_INFO_TYPE,
745 CPTI_TYPE_INFO_PTR_TYPE,
747 CPTI_GLOBAL_DELETE_FNDECL,
750 CPTI_CTOR_IDENTIFIER,
751 CPTI_COMPLETE_CTOR_IDENTIFIER,
752 CPTI_BASE_CTOR_IDENTIFIER,
753 CPTI_DTOR_IDENTIFIER,
754 CPTI_COMPLETE_DTOR_IDENTIFIER,
755 CPTI_BASE_DTOR_IDENTIFIER,
756 CPTI_DELETING_DTOR_IDENTIFIER,
757 CPTI_DELTA_IDENTIFIER,
758 CPTI_IN_CHARGE_IDENTIFIER,
759 CPTI_VTT_PARM_IDENTIFIER,
760 CPTI_NELTS_IDENTIFIER,
761 CPTI_THIS_IDENTIFIER,
763 CPTI_VPTR_IDENTIFIER,
767 CPTI_LANG_NAME_CPLUSPLUS,
770 CPTI_EMPTY_EXCEPT_SPEC,
773 CPTI_CALL_UNEXPECTED,
774 CPTI_ATEXIT_FN_PTR_TYPE,
784 extern GTY(()) tree cp_global_trees[CPTI_MAX];
786 #define java_byte_type_node cp_global_trees[CPTI_JAVA_BYTE_TYPE]
787 #define java_short_type_node cp_global_trees[CPTI_JAVA_SHORT_TYPE]
788 #define java_int_type_node cp_global_trees[CPTI_JAVA_INT_TYPE]
789 #define java_long_type_node cp_global_trees[CPTI_JAVA_LONG_TYPE]
790 #define java_float_type_node cp_global_trees[CPTI_JAVA_FLOAT_TYPE]
791 #define java_double_type_node cp_global_trees[CPTI_JAVA_DOUBLE_TYPE]
792 #define java_char_type_node cp_global_trees[CPTI_JAVA_CHAR_TYPE]
793 #define java_boolean_type_node cp_global_trees[CPTI_JAVA_BOOLEAN_TYPE]
795 #define wchar_decl_node cp_global_trees[CPTI_WCHAR_DECL]
796 #define vtable_entry_type cp_global_trees[CPTI_VTABLE_ENTRY_TYPE]
797 /* The type used to represent an offset by which to adjust the `this'
798 pointer in pointer-to-member types. */
799 #define delta_type_node cp_global_trees[CPTI_DELTA_TYPE]
800 /* The type used to represent an index into the vtable. */
801 #define vtable_index_type cp_global_trees[CPTI_VTABLE_INDEX_TYPE]
803 #define class_type_node cp_global_trees[CPTI_CLASS_TYPE]
804 #define unknown_type_node cp_global_trees[CPTI_UNKNOWN_TYPE]
805 #define init_list_type_node cp_global_trees[CPTI_INIT_LIST_TYPE]
806 #define vtbl_type_node cp_global_trees[CPTI_VTBL_TYPE]
807 #define vtbl_ptr_type_node cp_global_trees[CPTI_VTBL_PTR_TYPE]
808 #define std_node cp_global_trees[CPTI_STD]
809 #define abi_node cp_global_trees[CPTI_ABI]
810 #define const_type_info_type_node cp_global_trees[CPTI_CONST_TYPE_INFO_TYPE]
811 #define type_info_ptr_type cp_global_trees[CPTI_TYPE_INFO_PTR_TYPE]
812 #define abort_fndecl cp_global_trees[CPTI_ABORT_FNDECL]
813 #define global_delete_fndecl cp_global_trees[CPTI_GLOBAL_DELETE_FNDECL]
814 #define current_aggr cp_global_trees[CPTI_AGGR_TAG]
816 /* We cache these tree nodes so as to call get_identifier less
819 /* The name of a constructor that takes an in-charge parameter to
820 decide whether or not to construct virtual base classes. */
821 #define ctor_identifier cp_global_trees[CPTI_CTOR_IDENTIFIER]
822 /* The name of a constructor that constructs virtual base classes. */
823 #define complete_ctor_identifier cp_global_trees[CPTI_COMPLETE_CTOR_IDENTIFIER]
824 /* The name of a constructor that does not construct virtual base classes. */
825 #define base_ctor_identifier cp_global_trees[CPTI_BASE_CTOR_IDENTIFIER]
826 /* The name of a destructor that takes an in-charge parameter to
827 decide whether or not to destroy virtual base classes and whether
828 or not to delete the object. */
829 #define dtor_identifier cp_global_trees[CPTI_DTOR_IDENTIFIER]
830 /* The name of a destructor that destroys virtual base classes. */
831 #define complete_dtor_identifier cp_global_trees[CPTI_COMPLETE_DTOR_IDENTIFIER]
832 /* The name of a destructor that does not destroy virtual base
834 #define base_dtor_identifier cp_global_trees[CPTI_BASE_DTOR_IDENTIFIER]
835 /* The name of a destructor that destroys virtual base classes, and
836 then deletes the entire object. */
837 #define deleting_dtor_identifier cp_global_trees[CPTI_DELETING_DTOR_IDENTIFIER]
838 #define delta_identifier cp_global_trees[CPTI_DELTA_IDENTIFIER]
839 #define in_charge_identifier cp_global_trees[CPTI_IN_CHARGE_IDENTIFIER]
840 /* The name of the parameter that contains a pointer to the VTT to use
841 for this subobject constructor or destructor. */
842 #define vtt_parm_identifier cp_global_trees[CPTI_VTT_PARM_IDENTIFIER]
843 #define nelts_identifier cp_global_trees[CPTI_NELTS_IDENTIFIER]
844 #define this_identifier cp_global_trees[CPTI_THIS_IDENTIFIER]
845 #define pfn_identifier cp_global_trees[CPTI_PFN_IDENTIFIER]
846 #define vptr_identifier cp_global_trees[CPTI_VPTR_IDENTIFIER]
847 /* The name of the std namespace. */
848 #define std_identifier cp_global_trees[CPTI_STD_IDENTIFIER]
849 #define lang_name_c cp_global_trees[CPTI_LANG_NAME_C]
850 #define lang_name_cplusplus cp_global_trees[CPTI_LANG_NAME_CPLUSPLUS]
851 #define lang_name_java cp_global_trees[CPTI_LANG_NAME_JAVA]
853 /* Exception specifier used for throw(). */
854 #define empty_except_spec cp_global_trees[CPTI_EMPTY_EXCEPT_SPEC]
856 /* If non-NULL, a POINTER_TYPE equivalent to (java::lang::Class*). */
857 #define jclass_node cp_global_trees[CPTI_JCLASS]
859 /* The declaration for `std::terminate'. */
860 #define terminate_node cp_global_trees[CPTI_TERMINATE]
862 /* The declaration for "__cxa_call_unexpected". */
863 #define call_unexpected_node cp_global_trees[CPTI_CALL_UNEXPECTED]
865 /* The type of the function-pointer argument to "__cxa_atexit" (or
866 "std::atexit", if "__cxa_atexit" is not being used). */
867 #define atexit_fn_ptr_type_node cp_global_trees[CPTI_ATEXIT_FN_PTR_TYPE]
869 /* A pointer to `std::atexit'. */
870 #define atexit_node cp_global_trees[CPTI_ATEXIT]
872 /* A pointer to `__dso_handle'. */
873 #define dso_handle_node cp_global_trees[CPTI_DSO_HANDLE]
875 /* The declaration of the dynamic_cast runtime. */
876 #define dynamic_cast_node cp_global_trees[CPTI_DCAST]
878 /* The type of a destructor. */
879 #define cleanup_type cp_global_trees[CPTI_CLEANUP_TYPE]
881 /* The type of the vtt parameter passed to subobject constructors and
883 #define vtt_parm_type cp_global_trees[CPTI_VTT_PARM_TYPE]
885 /* A TREE_LIST of the dynamic classes whose vtables may have to be
886 emitted in this translation unit. */
888 #define keyed_classes cp_global_trees[CPTI_KEYED_CLASSES]
890 /* Node to indicate default access. This must be distinct from the
891 access nodes in tree.h. */
893 #define access_default_node null_node
897 struct GTY(()) saved_scope {
898 VEC(cxx_saved_binding,gc) *old_bindings;
903 tree access_specifier;
905 VEC(tree,gc) *lang_base;
908 struct cp_binding_level *x_previous_class_level;
911 int x_processing_template_decl;
912 int x_processing_specialization;
913 BOOL_BITFIELD x_processing_explicit_instantiation : 1;
914 BOOL_BITFIELD need_pop_function_context : 1;
916 int unevaluated_operand;
917 int inhibit_evaluation_warnings;
919 struct stmt_tree_s x_stmt_tree;
921 struct cp_binding_level *class_bindings;
922 struct cp_binding_level *bindings;
924 struct saved_scope *prev;
927 /* The current open namespace. */
929 #define current_namespace scope_chain->old_namespace
931 /* The stack for namespaces of current declarations. */
933 #define decl_namespace_list scope_chain->decl_ns_list
935 /* IDENTIFIER_NODE: name of current class */
937 #define current_class_name scope_chain->class_name
939 /* _TYPE: the type of the current class */
941 #define current_class_type scope_chain->class_type
943 /* When parsing a class definition, the access specifier most recently
944 given by the user, or, if no access specifier was given, the
945 default value appropriate for the kind of class (i.e., struct,
948 #define current_access_specifier scope_chain->access_specifier
950 /* Pointer to the top of the language name stack. */
952 #define current_lang_base scope_chain->lang_base
953 #define current_lang_name scope_chain->lang_name
955 /* When parsing a template declaration, a TREE_LIST represents the
956 active template parameters. Each node in the list represents one
957 level of template parameters. The innermost level is first in the
958 list. The depth of each level is stored as an INTEGER_CST in the
959 TREE_PURPOSE of each node. The parameters for that level are
960 stored in the TREE_VALUE. */
962 #define current_template_parms scope_chain->template_parms
964 #define processing_template_decl scope_chain->x_processing_template_decl
965 #define processing_specialization scope_chain->x_processing_specialization
966 #define processing_explicit_instantiation scope_chain->x_processing_explicit_instantiation
968 /* The cached class binding level, from the most recently exited
969 class, or NULL if none. */
971 #define previous_class_level scope_chain->x_previous_class_level
973 /* A list of private types mentioned, for deferred access checking. */
975 extern GTY(()) struct saved_scope *scope_chain;
977 struct GTY(()) cxx_int_tree_map {
982 extern unsigned int cxx_int_tree_map_hash (const void *);
983 extern int cxx_int_tree_map_eq (const void *, const void *);
985 /* Global state pertinent to the current function. */
987 struct GTY(()) language_function {
988 struct c_language_function base;
991 tree x_current_class_ptr;
992 tree x_current_class_ref;
993 tree x_eh_spec_block;
994 tree x_in_charge_parm;
998 BOOL_BITFIELD returns_value : 1;
999 BOOL_BITFIELD returns_null : 1;
1000 BOOL_BITFIELD returns_abnormally : 1;
1001 BOOL_BITFIELD in_function_try_handler : 1;
1002 BOOL_BITFIELD in_base_initializer : 1;
1004 /* True if this function can throw an exception. */
1005 BOOL_BITFIELD can_throw : 1;
1007 htab_t GTY((param_is(struct named_label_entry))) x_named_labels;
1008 struct cp_binding_level *bindings;
1009 VEC(tree,gc) *x_local_names;
1010 htab_t GTY((param_is (struct cxx_int_tree_map))) extern_decl_map;
1013 /* The current C++-specific per-function global variables. */
1015 #define cp_function_chain (cfun->language)
1017 /* In a constructor destructor, the point at which all derived class
1018 destroying/construction has been done. I.e., just before a
1019 constructor returns, or before any base class destroying will be done
1022 #define cdtor_label cp_function_chain->x_cdtor_label
1024 /* When we're processing a member function, current_class_ptr is the
1025 PARM_DECL for the `this' pointer. The current_class_ref is an
1026 expression for `*this'. */
1028 #define current_class_ptr \
1029 (cfun ? cp_function_chain->x_current_class_ptr : NULL_TREE)
1030 #define current_class_ref \
1031 (cfun ? cp_function_chain->x_current_class_ref : NULL_TREE)
1033 /* The EH_SPEC_BLOCK for the exception-specifiers for the current
1034 function, if any. */
1036 #define current_eh_spec_block cp_function_chain->x_eh_spec_block
1038 /* The `__in_chrg' parameter for the current function. Only used for
1039 constructors and destructors. */
1041 #define current_in_charge_parm cp_function_chain->x_in_charge_parm
1043 /* The `__vtt_parm' parameter for the current function. Only used for
1044 constructors and destructors. */
1046 #define current_vtt_parm cp_function_chain->x_vtt_parm
1048 /* Set to 0 at beginning of a function definition, set to 1 if
1049 a return statement that specifies a return value is seen. */
1051 #define current_function_returns_value cp_function_chain->returns_value
1053 /* Set to 0 at beginning of a function definition, set to 1 if
1054 a return statement with no argument is seen. */
1056 #define current_function_returns_null cp_function_chain->returns_null
1058 /* Set to 0 at beginning of a function definition, set to 1 if
1059 a call to a noreturn function is seen. */
1061 #define current_function_returns_abnormally \
1062 cp_function_chain->returns_abnormally
1064 /* Nonzero if we are processing a base initializer. Zero elsewhere. */
1065 #define in_base_initializer cp_function_chain->in_base_initializer
1067 #define in_function_try_handler cp_function_chain->in_function_try_handler
1069 /* Expression always returned from function, or error_mark_node
1070 otherwise, for use by the automatic named return value optimization. */
1072 #define current_function_return_value \
1073 (cp_function_chain->x_return_value)
1075 /* True if NAME is the IDENTIFIER_NODE for an overloaded "operator
1076 new" or "operator delete". */
1077 #define NEW_DELETE_OPNAME_P(NAME) \
1078 ((NAME) == ansi_opname (NEW_EXPR) \
1079 || (NAME) == ansi_opname (VEC_NEW_EXPR) \
1080 || (NAME) == ansi_opname (DELETE_EXPR) \
1081 || (NAME) == ansi_opname (VEC_DELETE_EXPR))
1083 #define ansi_opname(CODE) \
1084 (operator_name_info[(int) (CODE)].identifier)
1085 #define ansi_assopname(CODE) \
1086 (assignment_operator_name_info[(int) (CODE)].identifier)
1088 /* True if NODE is an erroneous expression. */
1090 #define error_operand_p(NODE) \
1091 ((NODE) == error_mark_node \
1092 || ((NODE) && TREE_TYPE ((NODE)) == error_mark_node))
1094 /* TRUE if a tree code represents a statement. */
1095 extern bool statement_code_p[MAX_TREE_CODES];
1097 #define STATEMENT_CODE_P(CODE) statement_code_p[(int) (CODE)]
1099 enum languages { lang_c, lang_cplusplus, lang_java };
1101 /* Macros to make error reporting functions' lives easier. */
1102 #define TYPE_IDENTIFIER(NODE) (DECL_NAME (TYPE_NAME (NODE)))
1103 #define TYPE_LINKAGE_IDENTIFIER(NODE) \
1104 (TYPE_IDENTIFIER (TYPE_MAIN_VARIANT (NODE)))
1105 #define TYPE_NAME_STRING(NODE) (IDENTIFIER_POINTER (TYPE_IDENTIFIER (NODE)))
1106 #define TYPE_NAME_LENGTH(NODE) (IDENTIFIER_LENGTH (TYPE_IDENTIFIER (NODE)))
1108 /* Nonzero if NODE has no name for linkage purposes. */
1109 #define TYPE_ANONYMOUS_P(NODE) \
1110 (TAGGED_TYPE_P (NODE) && ANON_AGGRNAME_P (TYPE_LINKAGE_IDENTIFIER (NODE)))
1112 /* The _DECL for this _TYPE. */
1113 #define TYPE_MAIN_DECL(NODE) (TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE)))
1115 /* Nonzero if T is a class (or struct or union) type. Also nonzero
1116 for template type parameters, typename types, and instantiated
1117 template template parameters. Keep these checks in ascending code
1119 #define MAYBE_CLASS_TYPE_P(T) \
1120 (TREE_CODE (T) == TEMPLATE_TYPE_PARM \
1121 || TREE_CODE (T) == TYPENAME_TYPE \
1122 || TREE_CODE (T) == TYPEOF_TYPE \
1123 || TREE_CODE (T) == BOUND_TEMPLATE_TEMPLATE_PARM \
1124 || TREE_CODE (T) == DECLTYPE_TYPE \
1125 || CLASS_TYPE_P (T))
1127 /* Set CLASS_TYPE_P for T to VAL. T must be a class, struct, or
1129 #define SET_CLASS_TYPE_P(T, VAL) \
1130 (TYPE_LANG_FLAG_5 (T) = (VAL))
1132 /* Nonzero if T is a class type. Zero for template type parameters,
1133 typename types, and so forth. */
1134 #define CLASS_TYPE_P(T) \
1135 (RECORD_OR_UNION_CODE_P (TREE_CODE (T)) && TYPE_LANG_FLAG_5 (T))
1137 /* Nonzero if T is a class type but not an union. */
1138 #define NON_UNION_CLASS_TYPE_P(T) \
1139 (CLASS_TYPE_P (T) && TREE_CODE (T) != UNION_TYPE)
1141 /* Keep these checks in ascending code order. */
1142 #define RECORD_OR_UNION_CODE_P(T) \
1143 ((T) == RECORD_TYPE || (T) == UNION_TYPE)
1144 #define TAGGED_TYPE_P(T) \
1145 (CLASS_TYPE_P (T) || TREE_CODE (T) == ENUMERAL_TYPE)
1146 #define IS_OVERLOAD_TYPE(T) TAGGED_TYPE_P (T)
1148 /* True if this a "Java" type, defined in 'extern "Java"'. */
1149 #define TYPE_FOR_JAVA(NODE) TYPE_LANG_FLAG_3 (NODE)
1151 /* True if this type is dependent. This predicate is only valid if
1152 TYPE_DEPENDENT_P_VALID is true. */
1153 #define TYPE_DEPENDENT_P(NODE) TYPE_LANG_FLAG_0 (NODE)
1155 /* True if dependent_type_p has been called for this type, with the
1156 result that TYPE_DEPENDENT_P is valid. */
1157 #define TYPE_DEPENDENT_P_VALID(NODE) TYPE_LANG_FLAG_6(NODE)
1159 /* Nonzero if this type is const-qualified. */
1160 #define CP_TYPE_CONST_P(NODE) \
1161 ((cp_type_quals (NODE) & TYPE_QUAL_CONST) != 0)
1163 /* Nonzero if this type is volatile-qualified. */
1164 #define CP_TYPE_VOLATILE_P(NODE) \
1165 ((cp_type_quals (NODE) & TYPE_QUAL_VOLATILE) != 0)
1167 /* Nonzero if this type is restrict-qualified. */
1168 #define CP_TYPE_RESTRICT_P(NODE) \
1169 ((cp_type_quals (NODE) & TYPE_QUAL_RESTRICT) != 0)
1171 /* Nonzero if this type is const-qualified, but not
1172 volatile-qualified. Other qualifiers are ignored. This macro is
1173 used to test whether or not it is OK to bind an rvalue to a
1175 #define CP_TYPE_CONST_NON_VOLATILE_P(NODE) \
1176 ((cp_type_quals (NODE) & (TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE)) \
1179 #define FUNCTION_ARG_CHAIN(NODE) \
1180 TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (NODE)))
1182 /* Given a FUNCTION_DECL, returns the first TREE_LIST out of TYPE_ARG_TYPES
1183 which refers to a user-written parameter. */
1184 #define FUNCTION_FIRST_USER_PARMTYPE(NODE) \
1185 skip_artificial_parms_for ((NODE), TYPE_ARG_TYPES (TREE_TYPE (NODE)))
1187 /* Similarly, but for DECL_ARGUMENTS. */
1188 #define FUNCTION_FIRST_USER_PARM(NODE) \
1189 skip_artificial_parms_for ((NODE), DECL_ARGUMENTS (NODE))
1191 /* Nonzero iff TYPE is derived from PARENT. Ignores accessibility and
1192 ambiguity issues. */
1193 #define DERIVED_FROM_P(PARENT, TYPE) \
1194 (lookup_base ((TYPE), (PARENT), ba_any, NULL) != NULL_TREE)
1195 /* Nonzero iff TYPE is uniquely derived from PARENT. Ignores
1197 #define UNIQUELY_DERIVED_FROM_P(PARENT, TYPE) \
1198 (lookup_base ((TYPE), (PARENT), ba_unique | ba_quiet, NULL) != NULL_TREE)
1199 /* Nonzero iff TYPE is publicly & uniquely derived from PARENT. */
1200 #define PUBLICLY_UNIQUELY_DERIVED_P(PARENT, TYPE) \
1201 (lookup_base ((TYPE), (PARENT), ba_ignore_scope | ba_check | ba_quiet, \
1204 /* Gives the visibility specification for a class type. */
1205 #define CLASSTYPE_VISIBILITY(TYPE) \
1206 DECL_VISIBILITY (TYPE_NAME (TYPE))
1207 #define CLASSTYPE_VISIBILITY_SPECIFIED(TYPE) \
1208 DECL_VISIBILITY_SPECIFIED (TYPE_NAME (TYPE))
1210 typedef struct GTY (()) tree_pair_s {
1214 typedef tree_pair_s *tree_pair_p;
1215 DEF_VEC_O (tree_pair_s);
1216 DEF_VEC_ALLOC_O (tree_pair_s,gc);
1218 /* This is a few header flags for 'struct lang_type'. Actually,
1219 all but the first are used only for lang_type_class; they
1220 are put in this structure to save space. */
1221 struct GTY(()) lang_type_header {
1222 BOOL_BITFIELD is_lang_type_class : 1;
1224 BOOL_BITFIELD has_type_conversion : 1;
1225 BOOL_BITFIELD has_init_ref : 1;
1226 BOOL_BITFIELD has_default_ctor : 1;
1227 BOOL_BITFIELD const_needs_init : 1;
1228 BOOL_BITFIELD ref_needs_init : 1;
1229 BOOL_BITFIELD has_const_assign_ref : 1;
1231 BOOL_BITFIELD spare : 1;
1234 /* This structure provides additional information above and beyond
1235 what is provide in the ordinary tree_type. In the past, we used it
1236 for the types of class types, template parameters types, typename
1237 types, and so forth. However, there can be many (tens to hundreds
1238 of thousands) of template parameter types in a compilation, and
1239 there's no need for this additional information in that case.
1240 Therefore, we now use this data structure only for class types.
1242 In the past, it was thought that there would be relatively few
1243 class types. However, in the presence of heavy use of templates,
1244 many (i.e., thousands) of classes can easily be generated.
1245 Therefore, we should endeavor to keep the size of this structure to
1247 struct GTY(()) lang_type_class {
1248 struct lang_type_header h;
1250 unsigned char align;
1252 unsigned has_mutable : 1;
1253 unsigned com_interface : 1;
1254 unsigned non_pod_class : 1;
1255 unsigned nearly_empty_p : 1;
1256 unsigned user_align : 1;
1257 unsigned has_assign_ref : 1;
1258 unsigned has_new : 1;
1259 unsigned has_array_new : 1;
1261 unsigned gets_delete : 2;
1262 unsigned interface_only : 1;
1263 unsigned interface_unknown : 1;
1264 unsigned contains_empty_class_p : 1;
1265 unsigned anon_aggr : 1;
1266 unsigned non_zero_init : 1;
1267 unsigned empty_p : 1;
1269 unsigned vec_new_uses_cookie : 1;
1270 unsigned declared_class : 1;
1271 unsigned diamond_shaped : 1;
1272 unsigned repeated_base : 1;
1273 unsigned being_defined : 1;
1274 unsigned java_interface : 1;
1275 unsigned debug_requested : 1;
1276 unsigned fields_readonly : 1;
1278 unsigned use_template : 2;
1279 unsigned ptrmemfunc_flag : 1;
1280 unsigned was_anonymous : 1;
1281 unsigned lazy_default_ctor : 1;
1282 unsigned lazy_copy_ctor : 1;
1283 unsigned lazy_assignment_op : 1;
1284 unsigned lazy_destructor : 1;
1286 unsigned has_const_init_ref : 1;
1287 unsigned has_complex_init_ref : 1;
1288 unsigned has_complex_assign_ref : 1;
1289 unsigned non_aggregate : 1;
1290 unsigned has_complex_dflt : 1;
1291 unsigned has_list_ctor : 1;
1292 unsigned non_std_layout : 1;
1293 unsigned lazy_move_ctor : 1;
1294 unsigned is_literal : 1;
1296 /* When adding a flag here, consider whether or not it ought to
1297 apply to a template instance if it applies to the template. If
1298 so, make sure to copy it in instantiate_class_template! */
1300 /* There are some bits left to fill out a 32-bit word. Keep track
1301 of this by updating the size of this bitfield whenever you add or
1306 VEC(tree_pair_s,gc) *vcall_indices;
1309 VEC(tree,gc) *vbases;
1310 binding_table nested_udts;
1312 VEC(tree,gc) *pure_virtuals;
1313 tree friend_classes;
1314 VEC(tree,gc) * GTY((reorder ("resort_type_method_vec"))) methods;
1318 tree befriending_classes;
1319 /* In a RECORD_TYPE, information specific to Objective-C++, such
1320 as a list of adopted protocols or a pointer to a corresponding
1321 @interface. See objc/objc-act.h for details. */
1323 /* sorted_fields is sorted based on a pointer, so we need to be able
1324 to resort it if pointers get rearranged. */
1325 struct sorted_fields_type * GTY ((reorder ("resort_sorted_fields")))
1327 /* FIXME reuse another field? */
1331 struct GTY(()) lang_type_ptrmem {
1332 struct lang_type_header h;
1336 struct GTY(()) lang_type {
1339 struct lang_type_header GTY((skip (""))) h;
1340 struct lang_type_class GTY((tag ("1"))) c;
1341 struct lang_type_ptrmem GTY((tag ("0"))) ptrmem;
1342 } GTY((desc ("%h.h.is_lang_type_class"))) u;
1345 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1347 #define LANG_TYPE_CLASS_CHECK(NODE) __extension__ \
1348 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1349 if (! lt->u.h.is_lang_type_class) \
1350 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1353 #define LANG_TYPE_PTRMEM_CHECK(NODE) __extension__ \
1354 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1355 if (lt->u.h.is_lang_type_class) \
1356 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1361 #define LANG_TYPE_CLASS_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.c)
1362 #define LANG_TYPE_PTRMEM_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.ptrmem)
1364 #endif /* ENABLE_TREE_CHECKING */
1366 /* Nonzero for _CLASSTYPE means that operator delete is defined. */
1367 #define TYPE_GETS_DELETE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->gets_delete)
1368 #define TYPE_GETS_REG_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 1)
1370 /* Nonzero if `new NODE[x]' should cause the allocation of extra
1371 storage to indicate how many array elements are in use. */
1372 #define TYPE_VEC_NEW_USES_COOKIE(NODE) \
1373 (CLASS_TYPE_P (NODE) \
1374 && LANG_TYPE_CLASS_CHECK (NODE)->vec_new_uses_cookie)
1376 /* Nonzero means that this _CLASSTYPE node defines ways of converting
1377 itself to other types. */
1378 #define TYPE_HAS_CONVERSION(NODE) \
1379 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_type_conversion)
1381 /* Nonzero means that NODE (a class type) has a default constructor --
1382 but that it has not yet been declared. */
1383 #define CLASSTYPE_LAZY_DEFAULT_CTOR(NODE) \
1384 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_default_ctor)
1386 /* Nonzero means that NODE (a class type) has a copy constructor --
1387 but that it has not yet been declared. */
1388 #define CLASSTYPE_LAZY_COPY_CTOR(NODE) \
1389 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_ctor)
1391 /* Nonzero means that NODE (a class type) has a move constructor --
1392 but that it has not yet been declared. */
1393 #define CLASSTYPE_LAZY_MOVE_CTOR(NODE) \
1394 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_move_ctor)
1396 /* Nonzero means that NODE (a class type) has an assignment operator
1397 -- but that it has not yet been declared. */
1398 #define CLASSTYPE_LAZY_ASSIGNMENT_OP(NODE) \
1399 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_assignment_op)
1401 /* Nonzero means that NODE (a class type) has a destructor -- but that
1402 it has not yet been declared. */
1403 #define CLASSTYPE_LAZY_DESTRUCTOR(NODE) \
1404 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_destructor)
1406 /* Nonzero means that this _CLASSTYPE node overloads operator=(X&). */
1407 #define TYPE_HAS_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_assign_ref)
1409 /* True iff the class type NODE has an "operator =" whose parameter
1410 has a parameter of type "const X&". */
1411 #define TYPE_HAS_CONST_ASSIGN_REF(NODE) \
1412 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_const_assign_ref)
1414 /* Nonzero means that this _CLASSTYPE node has an X(X&) constructor. */
1415 #define TYPE_HAS_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->h.has_init_ref)
1416 #define TYPE_HAS_CONST_INIT_REF(NODE) \
1417 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_init_ref)
1419 /* Nonzero if this class has an X(initializer_list<T>) constructor. */
1420 #define TYPE_HAS_LIST_CTOR(NODE) \
1421 (LANG_TYPE_CLASS_CHECK (NODE)->has_list_ctor)
1423 /* Nonzero if this class defines an overloaded operator new. (An
1424 operator new [] doesn't count.) */
1425 #define TYPE_HAS_NEW_OPERATOR(NODE) \
1426 (LANG_TYPE_CLASS_CHECK (NODE)->has_new)
1428 /* Nonzero if this class defines an overloaded operator new[]. */
1429 #define TYPE_HAS_ARRAY_NEW_OPERATOR(NODE) \
1430 (LANG_TYPE_CLASS_CHECK (NODE)->has_array_new)
1432 /* Nonzero means that this type is being defined. I.e., the left brace
1433 starting the definition of this type has been seen. */
1434 #define TYPE_BEING_DEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->being_defined)
1436 /* Mark bits for repeated base checks. */
1437 #define TYPE_MARKED_P(NODE) TREE_LANG_FLAG_6 (TYPE_CHECK (NODE))
1439 /* Nonzero if the class NODE has multiple paths to the same (virtual)
1441 #define CLASSTYPE_DIAMOND_SHAPED_P(NODE) \
1442 (LANG_TYPE_CLASS_CHECK(NODE)->diamond_shaped)
1444 /* Nonzero if the class NODE has multiple instances of the same base
1446 #define CLASSTYPE_REPEATED_BASE_P(NODE) \
1447 (LANG_TYPE_CLASS_CHECK(NODE)->repeated_base)
1449 /* The member function with which the vtable will be emitted:
1450 the first noninline non-pure-virtual member function. NULL_TREE
1451 if there is no key function or if this is a class template */
1452 #define CLASSTYPE_KEY_METHOD(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->key_method)
1454 /* Vector member functions defined in this class. Each element is
1455 either a FUNCTION_DECL, a TEMPLATE_DECL, or an OVERLOAD. All
1456 functions with the same name end up in the same slot. The first
1457 two elements are for constructors, and destructors, respectively.
1458 All template conversion operators to innermost template dependent
1459 types are overloaded on the next slot, if they exist. Note, the
1460 names for these functions will not all be the same. The
1461 non-template conversion operators & templated conversions to
1462 non-innermost template types are next, followed by ordinary member
1463 functions. There may be empty entries at the end of the vector.
1464 The conversion operators are unsorted. The ordinary member
1465 functions are sorted, once the class is complete. */
1466 #define CLASSTYPE_METHOD_VEC(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->methods)
1468 /* For class templates, this is a TREE_LIST of all member data,
1469 functions, types, and friends in the order of declaration.
1470 The TREE_PURPOSE of each TREE_LIST is NULL_TREE for a friend,
1471 and the RECORD_TYPE for the class template otherwise. */
1472 #define CLASSTYPE_DECL_LIST(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->decl_list)
1474 /* The slot in the CLASSTYPE_METHOD_VEC where constructors go. */
1475 #define CLASSTYPE_CONSTRUCTOR_SLOT 0
1477 /* The slot in the CLASSTYPE_METHOD_VEC where destructors go. */
1478 #define CLASSTYPE_DESTRUCTOR_SLOT 1
1480 /* The first slot in the CLASSTYPE_METHOD_VEC where conversion
1481 operators can appear. */
1482 #define CLASSTYPE_FIRST_CONVERSION_SLOT 2
1484 /* A FUNCTION_DECL or OVERLOAD for the constructors for NODE. These
1485 are the constructors that take an in-charge parameter. */
1486 #define CLASSTYPE_CONSTRUCTORS(NODE) \
1487 (VEC_index (tree, CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_CONSTRUCTOR_SLOT))
1489 /* A FUNCTION_DECL for the destructor for NODE. These are the
1490 destructors that take an in-charge parameter. If
1491 CLASSTYPE_LAZY_DESTRUCTOR is true, then this entry will be NULL
1492 until the destructor is created with lazily_declare_fn. */
1493 #define CLASSTYPE_DESTRUCTORS(NODE) \
1494 (CLASSTYPE_METHOD_VEC (NODE) \
1495 ? VEC_index (tree, CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_DESTRUCTOR_SLOT) \
1498 /* A dictionary of the nested user-defined-types (class-types, or enums)
1499 found within this class. This table includes nested member class
1501 #define CLASSTYPE_NESTED_UTDS(NODE) \
1502 (LANG_TYPE_CLASS_CHECK (NODE)->nested_udts)
1504 /* Nonzero if NODE has a primary base class, i.e., a base class with
1505 which it shares the virtual function table pointer. */
1506 #define CLASSTYPE_HAS_PRIMARY_BASE_P(NODE) \
1507 (CLASSTYPE_PRIMARY_BINFO (NODE) != NULL_TREE)
1509 /* If non-NULL, this is the binfo for the primary base class, i.e.,
1510 the base class which contains the virtual function table pointer
1512 #define CLASSTYPE_PRIMARY_BINFO(NODE) \
1513 (LANG_TYPE_CLASS_CHECK (NODE)->primary_base)
1515 /* A vector of BINFOs for the direct and indirect virtual base classes
1516 that this type uses in a post-order depth-first left-to-right
1517 order. (In other words, these bases appear in the order that they
1518 should be initialized.) */
1519 #define CLASSTYPE_VBASECLASSES(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->vbases)
1521 /* The type corresponding to NODE when NODE is used as a base class,
1522 i.e., NODE without virtual base classes. */
1524 #define CLASSTYPE_AS_BASE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->as_base)
1526 /* True iff NODE is the CLASSTYPE_AS_BASE version of some type. */
1528 #define IS_FAKE_BASE_TYPE(NODE) \
1529 (TREE_CODE (NODE) == RECORD_TYPE \
1530 && TYPE_CONTEXT (NODE) && CLASS_TYPE_P (TYPE_CONTEXT (NODE)) \
1531 && CLASSTYPE_AS_BASE (TYPE_CONTEXT (NODE)) == (NODE))
1533 /* These are the size and alignment of the type without its virtual
1534 base classes, for when we use this type as a base itself. */
1535 #define CLASSTYPE_SIZE(NODE) TYPE_SIZE (CLASSTYPE_AS_BASE (NODE))
1536 #define CLASSTYPE_SIZE_UNIT(NODE) TYPE_SIZE_UNIT (CLASSTYPE_AS_BASE (NODE))
1537 #define CLASSTYPE_ALIGN(NODE) TYPE_ALIGN (CLASSTYPE_AS_BASE (NODE))
1538 #define CLASSTYPE_USER_ALIGN(NODE) TYPE_USER_ALIGN (CLASSTYPE_AS_BASE (NODE))
1540 /* The alignment of NODE, without its virtual bases, in bytes. */
1541 #define CLASSTYPE_ALIGN_UNIT(NODE) \
1542 (CLASSTYPE_ALIGN (NODE) / BITS_PER_UNIT)
1544 /* True if this a Java interface type, declared with
1545 '__attribute__ ((java_interface))'. */
1546 #define TYPE_JAVA_INTERFACE(NODE) \
1547 (LANG_TYPE_CLASS_CHECK (NODE)->java_interface)
1549 /* A VEC(tree) of virtual functions which cannot be inherited by
1550 derived classes. When deriving from this type, the derived
1551 class must provide its own definition for each of these functions. */
1552 #define CLASSTYPE_PURE_VIRTUALS(NODE) \
1553 (LANG_TYPE_CLASS_CHECK (NODE)->pure_virtuals)
1555 /* Nonzero means that this type has an X() constructor. */
1556 #define TYPE_HAS_DEFAULT_CONSTRUCTOR(NODE) \
1557 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_default_ctor)
1559 /* Nonzero means that this type contains a mutable member. */
1560 #define CLASSTYPE_HAS_MUTABLE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_mutable)
1561 #define TYPE_HAS_MUTABLE_P(NODE) (cp_has_mutable_p (NODE))
1563 /* Nonzero means that this class type is not POD for the purpose of layout
1564 (as defined in the ABI). This is different from the language's POD. */
1565 #define CLASSTYPE_NON_LAYOUT_POD_P(NODE) \
1566 (LANG_TYPE_CLASS_CHECK (NODE)->non_pod_class)
1568 /* Nonzero means that this class type is a non-standard-layout class. */
1569 #define CLASSTYPE_NON_STD_LAYOUT(NODE) \
1570 (LANG_TYPE_CLASS_CHECK (NODE)->non_std_layout)
1572 /* Nonzero means that this class contains pod types whose default
1573 initialization is not a zero initialization (namely, pointers to
1575 #define CLASSTYPE_NON_ZERO_INIT_P(NODE) \
1576 (LANG_TYPE_CLASS_CHECK (NODE)->non_zero_init)
1578 /* Nonzero if this class is "empty" in the sense of the C++ ABI. */
1579 #define CLASSTYPE_EMPTY_P(NODE) \
1580 (LANG_TYPE_CLASS_CHECK (NODE)->empty_p)
1582 /* Nonzero if this class is "nearly empty", i.e., contains only a
1583 virtual function table pointer. */
1584 #define CLASSTYPE_NEARLY_EMPTY_P(NODE) \
1585 (LANG_TYPE_CLASS_CHECK (NODE)->nearly_empty_p)
1587 /* Nonzero if this class contains an empty subobject. */
1588 #define CLASSTYPE_CONTAINS_EMPTY_CLASS_P(NODE) \
1589 (LANG_TYPE_CLASS_CHECK (NODE)->contains_empty_class_p)
1591 /* A list of class types of which this type is a friend. The
1592 TREE_VALUE is normally a TYPE, but will be a TEMPLATE_DECL in the
1593 case of a template friend. */
1594 #define CLASSTYPE_FRIEND_CLASSES(NODE) \
1595 (LANG_TYPE_CLASS_CHECK (NODE)->friend_classes)
1597 /* A list of the classes which grant friendship to this class. */
1598 #define CLASSTYPE_BEFRIENDING_CLASSES(NODE) \
1599 (LANG_TYPE_CLASS_CHECK (NODE)->befriending_classes)
1601 /* The associated LAMBDA_EXPR that made this class. */
1602 #define CLASSTYPE_LAMBDA_EXPR(NODE) \
1603 (LANG_TYPE_CLASS_CHECK (NODE)->lambda_expr)
1604 /* The extra mangling scope for this closure type. */
1605 #define LAMBDA_TYPE_EXTRA_SCOPE(NODE) \
1606 (LAMBDA_EXPR_EXTRA_SCOPE (CLASSTYPE_LAMBDA_EXPR (NODE)))
1608 /* Say whether this node was declared as a "class" or a "struct". */
1609 #define CLASSTYPE_DECLARED_CLASS(NODE) \
1610 (LANG_TYPE_CLASS_CHECK (NODE)->declared_class)
1612 /* Nonzero if this class has const members
1613 which have no specified initialization. */
1614 #define CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE) \
1615 (TYPE_LANG_SPECIFIC (NODE) \
1616 ? LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init : 0)
1617 #define SET_CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE, VALUE) \
1618 (LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init = (VALUE))
1620 /* Nonzero if this class has ref members
1621 which have no specified initialization. */
1622 #define CLASSTYPE_REF_FIELDS_NEED_INIT(NODE) \
1623 (TYPE_LANG_SPECIFIC (NODE) \
1624 ? LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init : 0)
1625 #define SET_CLASSTYPE_REF_FIELDS_NEED_INIT(NODE, VALUE) \
1626 (LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init = (VALUE))
1628 /* Nonzero if this class is included from a header file which employs
1629 `#pragma interface', and it is not included in its implementation file. */
1630 #define CLASSTYPE_INTERFACE_ONLY(NODE) \
1631 (LANG_TYPE_CLASS_CHECK (NODE)->interface_only)
1633 /* True if we have already determined whether or not vtables, VTTs,
1634 typeinfo, and other similar per-class data should be emitted in
1635 this translation unit. This flag does not indicate whether or not
1636 these items should be emitted; it only indicates that we know one
1637 way or the other. */
1638 #define CLASSTYPE_INTERFACE_KNOWN(NODE) \
1639 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown == 0)
1640 /* The opposite of CLASSTYPE_INTERFACE_KNOWN. */
1641 #define CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1642 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown)
1644 #define SET_CLASSTYPE_INTERFACE_UNKNOWN_X(NODE,X) \
1645 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = !!(X))
1646 #define SET_CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1647 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 1)
1648 #define SET_CLASSTYPE_INTERFACE_KNOWN(NODE) \
1649 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 0)
1651 /* Nonzero if a _DECL node requires us to output debug info for this class. */
1652 #define CLASSTYPE_DEBUG_REQUESTED(NODE) \
1653 (LANG_TYPE_CLASS_CHECK (NODE)->debug_requested)
1655 /* Additional macros for inheritance information. */
1657 /* Nonzero means that this class is on a path leading to a new vtable. */
1658 #define BINFO_VTABLE_PATH_MARKED(NODE) BINFO_FLAG_1 (NODE)
1660 /* Nonzero means B (a BINFO) has its own vtable. Any copies will not
1661 have this flag set. */
1662 #define BINFO_NEW_VTABLE_MARKED(B) (BINFO_FLAG_2 (B))
1664 /* Compare a BINFO_TYPE with another type for equality. For a binfo,
1665 this is functionally equivalent to using same_type_p, but
1666 measurably faster. At least one of the arguments must be a
1667 BINFO_TYPE. The other can be a BINFO_TYPE or a regular type. If
1668 BINFO_TYPE(T) ever stops being the main variant of the class the
1669 binfo is for, this macro must change. */
1670 #define SAME_BINFO_TYPE_P(A, B) ((A) == (B))
1672 /* Any subobject that needs a new vtable must have a vptr and must not
1673 be a non-virtual primary base (since it would then use the vtable from a
1674 derived class and never become non-primary.) */
1675 #define SET_BINFO_NEW_VTABLE_MARKED(B) \
1676 (BINFO_NEW_VTABLE_MARKED (B) = 1, \
1677 gcc_assert (!BINFO_PRIMARY_P (B) || BINFO_VIRTUAL_P (B)), \
1678 gcc_assert (TYPE_VFIELD (BINFO_TYPE (B))))
1680 /* Nonzero if this binfo is for a dependent base - one that should not
1682 #define BINFO_DEPENDENT_BASE_P(NODE) BINFO_FLAG_3 (NODE)
1684 /* Nonzero if this binfo has lost its primary base binfo (because that
1685 is a nearly-empty virtual base that has been taken by some other
1686 base in the complete hierarchy. */
1687 #define BINFO_LOST_PRIMARY_P(NODE) BINFO_FLAG_4 (NODE)
1689 /* Nonzero if this BINFO is a primary base class. */
1690 #define BINFO_PRIMARY_P(NODE) BINFO_FLAG_5(NODE)
1692 /* Used by various search routines. */
1693 #define IDENTIFIER_MARKED(NODE) TREE_LANG_FLAG_0 (NODE)
1695 /* A VEC(tree_pair_s) of the vcall indices associated with the class
1696 NODE. The PURPOSE of each element is a FUNCTION_DECL for a virtual
1697 function. The VALUE is the index into the virtual table where the
1698 vcall offset for that function is stored, when NODE is a virtual
1700 #define CLASSTYPE_VCALL_INDICES(NODE) \
1701 (LANG_TYPE_CLASS_CHECK (NODE)->vcall_indices)
1703 /* The various vtables for the class NODE. The primary vtable will be
1704 first, followed by the construction vtables and VTT, if any. */
1705 #define CLASSTYPE_VTABLES(NODE) \
1706 (LANG_TYPE_CLASS_CHECK (NODE)->vtables)
1708 /* The std::type_info variable representing this class, or NULL if no
1709 such variable has been created. This field is only set for the
1710 TYPE_MAIN_VARIANT of the class. */
1711 #define CLASSTYPE_TYPEINFO_VAR(NODE) \
1712 (LANG_TYPE_CLASS_CHECK (NODE)->typeinfo_var)
1714 /* Accessor macros for the BINFO_VIRTUALS list. */
1716 /* The number of bytes by which to adjust the `this' pointer when
1717 calling this virtual function. Subtract this value from the this
1718 pointer. Always non-NULL, might be constant zero though. */
1719 #define BV_DELTA(NODE) (TREE_PURPOSE (NODE))
1721 /* If non-NULL, the vtable index at which to find the vcall offset
1722 when calling this virtual function. Add the value at that vtable
1723 index to the this pointer. */
1724 #define BV_VCALL_INDEX(NODE) (TREE_TYPE (NODE))
1726 /* The function to call. */
1727 #define BV_FN(NODE) (TREE_VALUE (NODE))
1730 /* For FUNCTION_TYPE or METHOD_TYPE, a list of the exceptions that
1731 this type can raise. Each TREE_VALUE is a _TYPE. The TREE_VALUE
1732 will be NULL_TREE to indicate a throw specification of `()', or
1733 no exceptions allowed. */
1734 #define TYPE_RAISES_EXCEPTIONS(NODE) TYPE_LANG_SLOT_1 (NODE)
1736 /* For FUNCTION_TYPE or METHOD_TYPE, return 1 iff it is declared `throw()'. */
1737 #define TYPE_NOTHROW_P(NODE) \
1738 (TYPE_RAISES_EXCEPTIONS (NODE) \
1739 && TREE_VALUE (TYPE_RAISES_EXCEPTIONS (NODE)) == NULL_TREE)
1741 /* The binding level associated with the namespace. */
1742 #define NAMESPACE_LEVEL(NODE) \
1743 (LANG_DECL_NS_CHECK (NODE)->level)
1745 /* Flags shared by all forms of DECL_LANG_SPECIFIC.
1747 Some of the flags live here only to make lang_decl_min/fn smaller. Do
1748 not make this struct larger than 32 bits; instead, make sel smaller. */
1750 struct GTY(()) lang_decl_base {
1751 unsigned selector : 16; /* Larger than necessary for faster access. */
1752 ENUM_BITFIELD(languages) language : 4;
1753 unsigned use_template : 2;
1754 unsigned not_really_extern : 1; /* var or fn */
1755 unsigned initialized_in_class : 1; /* var or fn */
1756 unsigned repo_available_p : 1; /* var or fn */
1757 unsigned threadprivate_or_deleted_p : 1; /* var or fn */
1758 unsigned anticipated_p : 1; /* fn or type */
1759 unsigned friend_attr : 1; /* fn or type */
1760 unsigned template_conv_p : 1; /* template only? */
1761 unsigned odr_used : 1; /* var or fn */
1766 /* True for DECL codes which have template info and access. */
1767 #define LANG_DECL_HAS_MIN(NODE) \
1768 (TREE_CODE (NODE) == FUNCTION_DECL \
1769 || TREE_CODE (NODE) == FIELD_DECL \
1770 || TREE_CODE (NODE) == VAR_DECL \
1771 || TREE_CODE (NODE) == CONST_DECL \
1772 || TREE_CODE (NODE) == TYPE_DECL \
1773 || TREE_CODE (NODE) == TEMPLATE_DECL \
1774 || TREE_CODE (NODE) == USING_DECL)
1776 /* DECL_LANG_SPECIFIC for the above codes. */
1778 struct GTY(()) lang_decl_min {
1779 struct lang_decl_base base;
1781 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
1783 In a FUNCTION_DECL for which DECL_THUNK_P does not hold,
1784 VAR_DECL, TYPE_DECL, or TEMPLATE_DECL, this is
1785 DECL_TEMPLATE_INFO. */
1788 union lang_decl_u2 {
1789 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
1790 THUNK_VIRTUAL_OFFSET.
1791 Otherwise this is DECL_ACCESS. */
1792 tree GTY ((tag ("0"))) access;
1794 /* For VAR_DECL in function, this is DECL_DISCRIMINATOR. */
1795 int GTY ((tag ("1"))) discriminator;
1796 } GTY ((desc ("%0.u.base.u2sel"))) u2;
1799 /* Additional DECL_LANG_SPECIFIC information for functions. */
1801 struct GTY(()) lang_decl_fn {
1802 struct lang_decl_min min;
1804 /* In an overloaded operator, this is the value of
1805 DECL_OVERLOADED_OPERATOR_P. */
1806 ENUM_BITFIELD (tree_code) operator_code : 16;
1808 unsigned global_ctor_p : 1;
1809 unsigned global_dtor_p : 1;
1810 unsigned constructor_attr : 1;
1811 unsigned destructor_attr : 1;
1812 unsigned assignment_operator_p : 1;
1813 unsigned static_function : 1;
1814 unsigned pure_virtual : 1;
1815 unsigned defaulted_p : 1;
1817 unsigned has_in_charge_parm_p : 1;
1818 unsigned has_vtt_parm_p : 1;
1819 unsigned pending_inline_p : 1;
1820 unsigned nonconverting : 1;
1821 unsigned thunk_p : 1;
1822 unsigned this_thunk_p : 1;
1823 unsigned hidden_friend_p : 1;
1826 /* For a non-thunk function decl, this is a tree list of
1827 friendly classes. For a thunk function decl, it is the
1828 thunked to function decl. */
1829 tree befriending_classes;
1831 /* For a non-virtual FUNCTION_DECL, this is
1832 DECL_FRIEND_CONTEXT. For a virtual FUNCTION_DECL for which
1833 DECL_THIS_THUNK_P does not hold, this is DECL_THUNKS. Both
1834 this pointer and result pointer adjusting thunks are
1835 chained here. This pointer thunks to return pointer thunks
1836 will be chained on the return pointer thunk. */
1841 /* In a non-thunk FUNCTION_DECL or TEMPLATE_DECL, this is
1842 DECL_CLONED_FUNCTION. */
1843 tree GTY ((tag ("0"))) cloned_function;
1845 /* In a FUNCTION_DECL for which THUNK_P holds this is the
1846 THUNK_FIXED_OFFSET. */
1847 HOST_WIDE_INT GTY ((tag ("1"))) fixed_offset;
1848 } GTY ((desc ("%1.thunk_p"))) u5;
1852 struct cp_token_cache * GTY ((tag ("1"))) pending_inline_info;
1853 struct language_function * GTY ((tag ("0")))
1854 saved_language_function;
1855 } GTY ((desc ("%1.pending_inline_p"))) u;
1859 /* DECL_LANG_SPECIFIC for namespaces. */
1861 struct GTY(()) lang_decl_ns {
1862 struct lang_decl_base base;
1863 struct cp_binding_level *level;
1866 /* DECL_LANG_SPECIFIC for parameters. */
1868 struct GTY(()) lang_decl_parm {
1869 struct lang_decl_base base;
1873 /* DECL_LANG_SPECIFIC for all types. It would be nice to just make this a
1874 union rather than a struct containing a union as its only field, but
1875 tree.h declares it as a struct. */
1877 struct GTY(()) lang_decl {
1878 union GTY((desc ("%h.base.selector"))) lang_decl_u {
1879 struct lang_decl_base GTY ((default)) base;
1880 struct lang_decl_min GTY((tag ("0"))) min;
1881 struct lang_decl_fn GTY ((tag ("1"))) fn;
1882 struct lang_decl_ns GTY((tag ("2"))) ns;
1883 struct lang_decl_parm GTY((tag ("3"))) parm;
1887 /* Looks through a template (if present) to find what it declares. */
1888 #define STRIP_TEMPLATE(NODE) \
1889 (TREE_CODE (NODE) == TEMPLATE_DECL ? DECL_TEMPLATE_RESULT (NODE) : NODE)
1891 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1893 #define LANG_DECL_MIN_CHECK(NODE) __extension__ \
1894 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
1895 if (!LANG_DECL_HAS_MIN (NODE)) \
1896 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1899 /* We want to be able to check DECL_CONSTRUCTOR_P and such on a function
1900 template, not just on a FUNCTION_DECL. So when looking for things in
1901 lang_decl_fn, look down through a TEMPLATE_DECL into its result. */
1902 #define LANG_DECL_FN_CHECK(NODE) __extension__ \
1903 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE)); \
1904 if (!DECL_DECLARES_FUNCTION_P (NODE) || lt->u.base.selector != 1) \
1905 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1908 #define LANG_DECL_NS_CHECK(NODE) __extension__ \
1909 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
1910 if (TREE_CODE (NODE) != NAMESPACE_DECL || lt->u.base.selector != 2) \
1911 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1914 #define LANG_DECL_PARM_CHECK(NODE) __extension__ \
1915 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
1916 if (TREE_CODE (NODE) != PARM_DECL) \
1917 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1920 #define LANG_DECL_U2_CHECK(NODE, TF) __extension__ \
1921 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
1922 if (!LANG_DECL_HAS_MIN (NODE) || lt->u.base.u2sel != TF) \
1923 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1928 #define LANG_DECL_MIN_CHECK(NODE) \
1929 (&DECL_LANG_SPECIFIC (NODE)->u.min)
1931 #define LANG_DECL_FN_CHECK(NODE) \
1932 (&DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE))->u.fn)
1934 #define LANG_DECL_NS_CHECK(NODE) \
1935 (&DECL_LANG_SPECIFIC (NODE)->u.ns)
1937 #define LANG_DECL_PARM_CHECK(NODE) \
1938 (&DECL_LANG_SPECIFIC (NODE)->u.parm)
1940 #define LANG_DECL_U2_CHECK(NODE, TF) \
1941 (&DECL_LANG_SPECIFIC (NODE)->u.min.u2)
1943 #endif /* ENABLE_TREE_CHECKING */
1945 /* For a FUNCTION_DECL or a VAR_DECL, the language linkage for the
1946 declaration. Some entities (like a member function in a local
1947 class, or a local variable) do not have linkage at all, and this
1948 macro should not be used in those cases.
1950 Implementation note: A FUNCTION_DECL without DECL_LANG_SPECIFIC was
1951 created by language-independent code, and has C linkage. Most
1952 VAR_DECLs have C++ linkage, and do not have DECL_LANG_SPECIFIC, but
1953 we do create DECL_LANG_SPECIFIC for variables with non-C++ linkage. */
1954 #define DECL_LANGUAGE(NODE) \
1955 (DECL_LANG_SPECIFIC (NODE) \
1956 ? DECL_LANG_SPECIFIC (NODE)->u.base.language \
1957 : (TREE_CODE (NODE) == FUNCTION_DECL \
1958 ? lang_c : lang_cplusplus))
1960 /* Set the language linkage for NODE to LANGUAGE. */
1961 #define SET_DECL_LANGUAGE(NODE, LANGUAGE) \
1962 (DECL_LANG_SPECIFIC (NODE)->u.base.language = (LANGUAGE))
1964 /* For FUNCTION_DECLs: nonzero means that this function is a constructor. */
1965 #define DECL_CONSTRUCTOR_P(NODE) \
1966 (LANG_DECL_FN_CHECK (NODE)->constructor_attr)
1968 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a complete
1970 #define DECL_COMPLETE_CONSTRUCTOR_P(NODE) \
1971 (DECL_CONSTRUCTOR_P (NODE) \
1972 && DECL_NAME (NODE) == complete_ctor_identifier)
1974 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a base
1976 #define DECL_BASE_CONSTRUCTOR_P(NODE) \
1977 (DECL_CONSTRUCTOR_P (NODE) \
1978 && DECL_NAME (NODE) == base_ctor_identifier)
1980 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor, but not either the
1981 specialized in-charge constructor or the specialized not-in-charge
1983 #define DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P(NODE) \
1984 (DECL_DECLARES_FUNCTION_P (NODE) && DECL_CONSTRUCTOR_P (NODE) \
1985 && !DECL_CLONED_FUNCTION_P (NODE))
1987 /* Nonzero if NODE (a FUNCTION_DECL) is a copy constructor. */
1988 #define DECL_COPY_CONSTRUCTOR_P(NODE) \
1989 (DECL_CONSTRUCTOR_P (NODE) && copy_fn_p (NODE) > 0)
1991 /* Nonzero if NODE (a FUNCTION_DECL) is a move constructor. */
1992 #define DECL_MOVE_CONSTRUCTOR_P(NODE) \
1993 (DECL_CONSTRUCTOR_P (NODE) && move_fn_p (NODE))
1995 /* Nonzero if NODE is a destructor. */
1996 #define DECL_DESTRUCTOR_P(NODE) \
1997 (LANG_DECL_FN_CHECK (NODE)->destructor_attr)
1999 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor, but not the
2000 specialized in-charge constructor, in-charge deleting constructor,
2001 or the base destructor. */
2002 #define DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P(NODE) \
2003 (DECL_DECLARES_FUNCTION_P (NODE) && DECL_DESTRUCTOR_P (NODE) \
2004 && !DECL_CLONED_FUNCTION_P (NODE))
2006 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
2008 #define DECL_COMPLETE_DESTRUCTOR_P(NODE) \
2009 (DECL_DESTRUCTOR_P (NODE) \
2010 && DECL_NAME (NODE) == complete_dtor_identifier)
2012 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a base
2014 #define DECL_BASE_DESTRUCTOR_P(NODE) \
2015 (DECL_DESTRUCTOR_P (NODE) \
2016 && DECL_NAME (NODE) == base_dtor_identifier)
2018 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
2019 object that deletes the object after it has been destroyed. */
2020 #define DECL_DELETING_DESTRUCTOR_P(NODE) \
2021 (DECL_DESTRUCTOR_P (NODE) \
2022 && DECL_NAME (NODE) == deleting_dtor_identifier)
2024 /* Nonzero if NODE (a FUNCTION_DECL) is a cloned constructor or
2026 #define DECL_CLONED_FUNCTION_P(NODE) (!!decl_cloned_function_p (NODE, true))
2028 /* If DECL_CLONED_FUNCTION_P holds, this is the function that was
2030 #define DECL_CLONED_FUNCTION(NODE) (*decl_cloned_function_p (NODE, false))
2032 /* Perform an action for each clone of FN, if FN is a function with
2033 clones. This macro should be used like:
2035 FOR_EACH_CLONE (clone, fn)
2039 #define FOR_EACH_CLONE(CLONE, FN) \
2040 if (TREE_CODE (FN) == FUNCTION_DECL \
2041 && (DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (FN) \
2042 || DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (FN))) \
2043 for (CLONE = TREE_CHAIN (FN); \
2044 CLONE && DECL_CLONED_FUNCTION_P (CLONE); \
2045 CLONE = TREE_CHAIN (CLONE))
2047 /* Nonzero if NODE has DECL_DISCRIMINATOR and not DECL_ACCESS. */
2048 #define DECL_DISCRIMINATOR_P(NODE) \
2049 (TREE_CODE (NODE) == VAR_DECL \
2050 && DECL_FUNCTION_SCOPE_P (NODE))
2052 /* Discriminator for name mangling. */
2053 #define DECL_DISCRIMINATOR(NODE) (LANG_DECL_U2_CHECK (NODE, 1)->discriminator)
2055 /* The index of a user-declared parameter in its function, starting at 1.
2056 All artificial parameters will have index 0. */
2057 #define DECL_PARM_INDEX(NODE) \
2058 (LANG_DECL_PARM_CHECK (NODE)->index)
2060 /* Nonzero if the VTT parm has been added to NODE. */
2061 #define DECL_HAS_VTT_PARM_P(NODE) \
2062 (LANG_DECL_FN_CHECK (NODE)->has_vtt_parm_p)
2064 /* Nonzero if NODE is a FUNCTION_DECL for which a VTT parameter is
2066 #define DECL_NEEDS_VTT_PARM_P(NODE) \
2067 (CLASSTYPE_VBASECLASSES (DECL_CONTEXT (NODE)) \
2068 && (DECL_BASE_CONSTRUCTOR_P (NODE) \
2069 || DECL_BASE_DESTRUCTOR_P (NODE)))
2071 /* Nonzero if NODE is a user-defined conversion operator. */
2072 #define DECL_CONV_FN_P(NODE) \
2073 (DECL_NAME (NODE) && IDENTIFIER_TYPENAME_P (DECL_NAME (NODE)))
2075 /* If FN is a conversion operator, the type to which it converts.
2076 Otherwise, NULL_TREE. */
2077 #define DECL_CONV_FN_TYPE(FN) \
2078 (DECL_CONV_FN_P (FN) ? TREE_TYPE (DECL_NAME (FN)) : NULL_TREE)
2080 /* Nonzero if NODE, which is a TEMPLATE_DECL, is a template
2081 conversion operator to a type dependent on the innermost template
2083 #define DECL_TEMPLATE_CONV_FN_P(NODE) \
2084 (DECL_LANG_SPECIFIC (TEMPLATE_DECL_CHECK (NODE))->u.base.template_conv_p)
2086 /* Set the overloaded operator code for NODE to CODE. */
2087 #define SET_OVERLOADED_OPERATOR_CODE(NODE, CODE) \
2088 (LANG_DECL_FN_CHECK (NODE)->operator_code = (CODE))
2090 /* If NODE is an overloaded operator, then this returns the TREE_CODE
2091 associated with the overloaded operator.
2092 DECL_ASSIGNMENT_OPERATOR_P must also be checked to determine
2093 whether or not NODE is an assignment operator. If NODE is not an
2094 overloaded operator, ERROR_MARK is returned. Since the numerical
2095 value of ERROR_MARK is zero, this macro can be used as a predicate
2096 to test whether or not NODE is an overloaded operator. */
2097 #define DECL_OVERLOADED_OPERATOR_P(NODE) \
2098 (IDENTIFIER_OPNAME_P (DECL_NAME (NODE)) \
2099 ? LANG_DECL_FN_CHECK (NODE)->operator_code : ERROR_MARK)
2101 /* Nonzero if NODE is an assignment operator (including += and such). */
2102 #define DECL_ASSIGNMENT_OPERATOR_P(NODE) \
2103 (LANG_DECL_FN_CHECK (NODE)->assignment_operator_p)
2105 /* For FUNCTION_DECLs: nonzero means that this function is a
2106 constructor or a destructor with an extra in-charge parameter to
2107 control whether or not virtual bases are constructed. */
2108 #define DECL_HAS_IN_CHARGE_PARM_P(NODE) \
2109 (LANG_DECL_FN_CHECK (NODE)->has_in_charge_parm_p)
2111 /* Nonzero if DECL is a declaration of __builtin_constant_p. */
2112 #define DECL_IS_BUILTIN_CONSTANT_P(NODE) \
2113 (TREE_CODE (NODE) == FUNCTION_DECL \
2114 && DECL_BUILT_IN_CLASS (NODE) == BUILT_IN_NORMAL \
2115 && DECL_FUNCTION_CODE (NODE) == BUILT_IN_CONSTANT_P)
2117 /* Nonzero for _DECL means that this decl appears in (or will appear
2118 in) as a member in a RECORD_TYPE or UNION_TYPE node. It is also for
2119 detecting circularity in case members are multiply defined. In the
2120 case of a VAR_DECL, it is also used to determine how program storage
2121 should be allocated. */
2122 #define DECL_IN_AGGR_P(NODE) (DECL_LANG_FLAG_3 (NODE))
2124 /* Nonzero for a VAR_DECL means that the variable's initialization (if
2125 any) has been processed. (In general, DECL_INITIALIZED_P is
2126 !DECL_EXTERN, but static data members may be initialized even if
2128 #define DECL_INITIALIZED_P(NODE) \
2129 (TREE_LANG_FLAG_1 (VAR_DECL_CHECK (NODE)))
2131 /* Nonzero for a VAR_DECL iff an explicit initializer was provided. */
2132 #define DECL_NONTRIVIALLY_INITIALIZED_P(NODE) \
2133 (TREE_LANG_FLAG_3 (VAR_DECL_CHECK (NODE)))
2135 /* Nonzero for a VAR_DECL that was initialized with a
2136 constant-expression. */
2137 #define DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P(NODE) \
2138 (TREE_LANG_FLAG_2 (VAR_DECL_CHECK (NODE)))
2140 /* Nonzero for a VAR_DECL that can be used in an integral constant
2145 An integral constant-expression can only involve ... const
2146 variables of static or enumeration types initialized with
2147 constant expressions ...
2149 The standard does not require that the expression be non-volatile.
2150 G++ implements the proposed correction in DR 457. */
2151 #define DECL_INTEGRAL_CONSTANT_VAR_P(NODE) \
2152 (TREE_CODE (NODE) == VAR_DECL \
2153 && CP_TYPE_CONST_NON_VOLATILE_P (TREE_TYPE (NODE)) \
2154 && INTEGRAL_OR_ENUMERATION_TYPE_P (TREE_TYPE (NODE)) \
2155 && DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (NODE))
2157 /* Nonzero if the DECL was initialized in the class definition itself,
2158 rather than outside the class. This is used for both static member
2159 VAR_DECLS, and FUNCTION_DECLS that are defined in the class. */
2160 #define DECL_INITIALIZED_IN_CLASS_P(DECL) \
2161 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \
2162 ->u.base.initialized_in_class)
2164 /* Nonzero if the DECL is used in the sense of 3.2 [basic.def.odr].
2165 Only available for decls with DECL_LANG_SPECIFIC. */
2166 #define DECL_ODR_USED(DECL) \
2167 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \
2170 /* Nonzero for DECL means that this decl is just a friend declaration,
2171 and should not be added to the list of members for this class. */
2172 #define DECL_FRIEND_P(NODE) (DECL_LANG_SPECIFIC (NODE)->u.base.friend_attr)
2174 /* A TREE_LIST of the types which have befriended this FUNCTION_DECL. */
2175 #define DECL_BEFRIENDING_CLASSES(NODE) \
2176 (LANG_DECL_FN_CHECK (NODE)->befriending_classes)
2178 /* Nonzero for FUNCTION_DECL means that this decl is a static
2180 #define DECL_STATIC_FUNCTION_P(NODE) \
2181 (LANG_DECL_FN_CHECK (NODE)->static_function)
2183 /* Nonzero for FUNCTION_DECL means that this decl is a non-static
2185 #define DECL_NONSTATIC_MEMBER_FUNCTION_P(NODE) \
2186 (TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE)
2188 /* Nonzero for FUNCTION_DECL means that this decl is a member function
2189 (static or non-static). */
2190 #define DECL_FUNCTION_MEMBER_P(NODE) \
2191 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) || DECL_STATIC_FUNCTION_P (NODE))
2193 /* Nonzero for FUNCTION_DECL means that this member function
2194 has `this' as const X *const. */
2195 #define DECL_CONST_MEMFUNC_P(NODE) \
2196 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
2197 && CP_TYPE_CONST_P (TREE_TYPE (TREE_VALUE \
2198 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
2200 /* Nonzero for FUNCTION_DECL means that this member function
2201 has `this' as volatile X *const. */
2202 #define DECL_VOLATILE_MEMFUNC_P(NODE) \
2203 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
2204 && CP_TYPE_VOLATILE_P (TREE_TYPE (TREE_VALUE \
2205 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
2207 /* Nonzero for a DECL means that this member is a non-static member. */
2208 #define DECL_NONSTATIC_MEMBER_P(NODE) \
2209 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
2210 || TREE_CODE (NODE) == FIELD_DECL)
2212 /* Nonzero for _DECL means that this member object type
2214 #define DECL_MUTABLE_P(NODE) (DECL_LANG_FLAG_0 (NODE))
2216 /* Nonzero for _DECL means that this constructor or conversion function is
2218 #define DECL_NONCONVERTING_P(NODE) \
2219 (LANG_DECL_FN_CHECK (NODE)->nonconverting)
2221 /* Nonzero for FUNCTION_DECL means that this member function is a pure
2222 virtual function. */
2223 #define DECL_PURE_VIRTUAL_P(NODE) \
2224 (LANG_DECL_FN_CHECK (NODE)->pure_virtual)
2226 /* True (in a FUNCTION_DECL) if NODE is a virtual function that is an
2227 invalid overrider for a function from a base class. Once we have
2228 complained about an invalid overrider we avoid complaining about it
2230 #define DECL_INVALID_OVERRIDER_P(NODE) \
2231 (DECL_LANG_FLAG_4 (NODE))
2233 /* The thunks associated with NODE, a FUNCTION_DECL. */
2234 #define DECL_THUNKS(NODE) \
2235 (LANG_DECL_FN_CHECK (NODE)->context)
2237 /* Nonzero if NODE is a thunk, rather than an ordinary function. */
2238 #define DECL_THUNK_P(NODE) \
2239 (TREE_CODE (NODE) == FUNCTION_DECL \
2240 && DECL_LANG_SPECIFIC (NODE) \
2241 && LANG_DECL_FN_CHECK (NODE)->thunk_p)
2243 /* Set DECL_THUNK_P for node. */
2244 #define SET_DECL_THUNK_P(NODE, THIS_ADJUSTING) \
2245 (LANG_DECL_FN_CHECK (NODE)->thunk_p = 1, \
2246 LANG_DECL_FN_CHECK (NODE)->this_thunk_p = (THIS_ADJUSTING))
2248 /* Nonzero if NODE is a this pointer adjusting thunk. */
2249 #define DECL_THIS_THUNK_P(NODE) \
2250 (DECL_THUNK_P (NODE) && LANG_DECL_FN_CHECK (NODE)->this_thunk_p)
2252 /* Nonzero if NODE is a result pointer adjusting thunk. */
2253 #define DECL_RESULT_THUNK_P(NODE) \
2254 (DECL_THUNK_P (NODE) && !LANG_DECL_FN_CHECK (NODE)->this_thunk_p)
2256 /* Nonzero if NODE is a FUNCTION_DECL, but not a thunk. */
2257 #define DECL_NON_THUNK_FUNCTION_P(NODE) \
2258 (TREE_CODE (NODE) == FUNCTION_DECL && !DECL_THUNK_P (NODE))
2260 /* Nonzero if NODE is `extern "C"'. */
2261 #define DECL_EXTERN_C_P(NODE) \
2262 (DECL_LANGUAGE (NODE) == lang_c)
2264 /* Nonzero if NODE is an `extern "C"' function. */
2265 #define DECL_EXTERN_C_FUNCTION_P(NODE) \
2266 (DECL_NON_THUNK_FUNCTION_P (NODE) && DECL_EXTERN_C_P (NODE))
2268 /* True iff DECL is an entity with vague linkage whose definition is
2269 available in this translation unit. */
2270 #define DECL_REPO_AVAILABLE_P(NODE) \
2271 (DECL_LANG_SPECIFIC (NODE)->u.base.repo_available_p)
2273 /* True if DECL is declared 'constexpr'. */
2274 #define DECL_DECLARED_CONSTEXPR_P(DECL) \
2275 DECL_LANG_FLAG_8 (VAR_OR_FUNCTION_DECL_CHECK (DECL))
2277 /* Nonzero if this DECL is the __PRETTY_FUNCTION__ variable in a
2278 template function. */
2279 #define DECL_PRETTY_FUNCTION_P(NODE) \
2280 (TREE_LANG_FLAG_0 (VAR_DECL_CHECK (NODE)))
2282 /* The _TYPE context in which this _DECL appears. This field holds the
2283 class where a virtual function instance is actually defined. */
2284 #define DECL_CLASS_CONTEXT(NODE) \
2285 (DECL_CLASS_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : NULL_TREE)
2287 /* For a non-member friend function, the class (if any) in which this
2288 friend was defined. For example, given:
2290 struct S { friend void f (); };
2292 the DECL_FRIEND_CONTEXT for `f' will be `S'. */
2293 #define DECL_FRIEND_CONTEXT(NODE) \
2294 ((DECL_DECLARES_FUNCTION_P (NODE) \
2295 && DECL_FRIEND_P (NODE) && !DECL_FUNCTION_MEMBER_P (NODE)) \
2296 ? LANG_DECL_FN_CHECK (NODE)->context \
2299 /* Set the DECL_FRIEND_CONTEXT for NODE to CONTEXT. */
2300 #define SET_DECL_FRIEND_CONTEXT(NODE, CONTEXT) \
2301 (LANG_DECL_FN_CHECK (NODE)->context = (CONTEXT))
2303 /* NULL_TREE in DECL_CONTEXT represents the global namespace. */
2304 #define CP_DECL_CONTEXT(NODE) \
2305 (DECL_CONTEXT (NODE) ? DECL_CONTEXT (NODE) : global_namespace)
2306 #define CP_TYPE_CONTEXT(NODE) \
2307 (TYPE_CONTEXT (NODE) ? TYPE_CONTEXT (NODE) : global_namespace)
2308 #define FROB_CONTEXT(NODE) ((NODE) == global_namespace ? NULL_TREE : (NODE))
2310 /* 1 iff NODE has namespace scope, including the global namespace. */
2311 #define DECL_NAMESPACE_SCOPE_P(NODE) \
2312 (!DECL_TEMPLATE_PARM_P (NODE) \
2313 && TREE_CODE (CP_DECL_CONTEXT (NODE)) == NAMESPACE_DECL)
2315 #define TYPE_NAMESPACE_SCOPE_P(NODE) \
2316 (TREE_CODE (CP_TYPE_CONTEXT (NODE)) == NAMESPACE_DECL)
2318 /* 1 iff NODE is a class member. */
2319 #define DECL_CLASS_SCOPE_P(NODE) \
2320 (DECL_CONTEXT (NODE) && TYPE_P (DECL_CONTEXT (NODE)))
2322 #define TYPE_CLASS_SCOPE_P(NODE) \
2323 (TYPE_CONTEXT (NODE) && TYPE_P (TYPE_CONTEXT (NODE)))
2325 /* 1 iff NODE is function-local. */
2326 #define DECL_FUNCTION_SCOPE_P(NODE) \
2327 (DECL_CONTEXT (NODE) \
2328 && TREE_CODE (DECL_CONTEXT (NODE)) == FUNCTION_DECL)
2330 #define TYPE_FUNCTION_SCOPE_P(NODE) \
2331 (TYPE_CONTEXT (NODE) && TREE_CODE (TYPE_CONTEXT (NODE)) == FUNCTION_DECL)
2333 /* 1 iff VAR_DECL node NODE is a type-info decl. This flag is set for
2334 both the primary typeinfo object and the associated NTBS name. */
2335 #define DECL_TINFO_P(NODE) TREE_LANG_FLAG_4 (VAR_DECL_CHECK (NODE))
2337 /* 1 iff VAR_DECL node NODE is virtual table or VTT. */
2338 #define DECL_VTABLE_OR_VTT_P(NODE) TREE_LANG_FLAG_5 (VAR_DECL_CHECK (NODE))
2340 /* Returns 1 iff VAR_DECL is a construction virtual table.
2341 DECL_VTABLE_OR_VTT_P will be true in this case and must be checked
2342 before using this macro. */
2343 #define DECL_CONSTRUCTION_VTABLE_P(NODE) \
2344 TREE_LANG_FLAG_6 (VAR_DECL_CHECK (NODE))
2346 /* 1 iff NODE is function-local, but for types. */
2347 #define LOCAL_CLASS_P(NODE) \
2348 (decl_function_context (TYPE_MAIN_DECL (NODE)) != NULL_TREE)
2350 /* For a NAMESPACE_DECL: the list of using namespace directives
2351 The PURPOSE is the used namespace, the value is the namespace
2352 that is the common ancestor. */
2353 #define DECL_NAMESPACE_USING(NODE) DECL_VINDEX (NAMESPACE_DECL_CHECK (NODE))
2355 /* In a NAMESPACE_DECL, the DECL_INITIAL is used to record all users
2356 of a namespace, to record the transitive closure of using namespace. */
2357 #define DECL_NAMESPACE_USERS(NODE) DECL_INITIAL (NAMESPACE_DECL_CHECK (NODE))
2359 /* In a NAMESPACE_DECL, the list of namespaces which have associated
2360 themselves with this one. */
2361 #define DECL_NAMESPACE_ASSOCIATIONS(NODE) \
2362 (NAMESPACE_DECL_CHECK (NODE)->decl_non_common.saved_tree)
2364 /* In a NAMESPACE_DECL, points to the original namespace if this is
2365 a namespace alias. */
2366 #define DECL_NAMESPACE_ALIAS(NODE) \
2367 DECL_ABSTRACT_ORIGIN (NAMESPACE_DECL_CHECK (NODE))
2368 #define ORIGINAL_NAMESPACE(NODE) \
2369 (DECL_NAMESPACE_ALIAS (NODE) ? DECL_NAMESPACE_ALIAS (NODE) : (NODE))
2371 /* Nonzero if NODE is the std namespace. */
2372 #define DECL_NAMESPACE_STD_P(NODE) \
2373 (TREE_CODE (NODE) == NAMESPACE_DECL \
2374 && CP_DECL_CONTEXT (NODE) == global_namespace \
2375 && DECL_NAME (NODE) == std_identifier)
2377 /* In a TREE_LIST concatenating using directives, indicate indirect
2379 #define TREE_INDIRECT_USING(NODE) (TREE_LIST_CHECK (NODE)->base.lang_flag_0)
2381 /* In a TREE_LIST in an attribute list, indicates that the attribute
2382 must be applied at instantiation time. */
2383 #define ATTR_IS_DEPENDENT(NODE) (TREE_LIST_CHECK (NODE)->base.lang_flag_0)
2385 extern tree decl_shadowed_for_var_lookup (tree);
2386 extern void decl_shadowed_for_var_insert (tree, tree);
2388 /* Non zero if this is a using decl for a dependent scope. */
2389 #define DECL_DEPENDENT_P(NODE) DECL_LANG_FLAG_0 (USING_DECL_CHECK (NODE))
2391 /* The scope named in a using decl. */
2392 #define USING_DECL_SCOPE(NODE) TREE_TYPE (USING_DECL_CHECK (NODE))
2394 /* The decls named by a using decl. */
2395 #define USING_DECL_DECLS(NODE) DECL_INITIAL (USING_DECL_CHECK (NODE))
2397 /* In a VAR_DECL, true if we have a shadowed local variable
2398 in the shadowed var table for this VAR_DECL. */
2399 #define DECL_HAS_SHADOWED_FOR_VAR_P(NODE) \
2400 (VAR_DECL_CHECK (NODE)->decl_with_vis.shadowed_for_var_p)
2402 /* In a VAR_DECL for a variable declared in a for statement,
2403 this is the shadowed (local) variable. */
2404 #define DECL_SHADOWED_FOR_VAR(NODE) \
2405 (DECL_HAS_SHADOWED_FOR_VAR_P(NODE) ? decl_shadowed_for_var_lookup (NODE) : NULL)
2407 #define SET_DECL_SHADOWED_FOR_VAR(NODE, VAL) \
2408 (decl_shadowed_for_var_insert (NODE, VAL))
2410 /* In a FUNCTION_DECL, this is nonzero if this function was defined in
2411 the class definition. We have saved away the text of the function,
2412 but have not yet processed it. */
2413 #define DECL_PENDING_INLINE_P(NODE) \
2414 (LANG_DECL_FN_CHECK (NODE)->pending_inline_p)
2416 /* If DECL_PENDING_INLINE_P holds, this is the saved text of the
2418 #define DECL_PENDING_INLINE_INFO(NODE) \
2419 (LANG_DECL_FN_CHECK (NODE)->u.pending_inline_info)
2421 /* For a class type: if this structure has many fields, we'll sort them
2422 and put them into a TREE_VEC. */
2423 #define CLASSTYPE_SORTED_FIELDS(NODE) \
2424 (LANG_TYPE_CLASS_CHECK (NODE)->sorted_fields)
2426 /* If non-NULL for a VAR_DECL, FUNCTION_DECL, TYPE_DECL or
2427 TEMPLATE_DECL, the entity is either a template specialization (if
2428 DECL_USE_TEMPLATE is nonzero) or the abstract instance of the
2431 In either case, DECL_TEMPLATE_INFO is a TREE_LIST, whose
2432 TREE_PURPOSE is the TEMPLATE_DECL of which this entity is a
2433 specialization or abstract instance. The TREE_VALUE is the
2434 template arguments used to specialize the template.
2438 template <typename T> struct S { friend void f(T) {} };
2440 In this case, S<int>::f is, from the point of view of the compiler,
2441 an instantiation of a template -- but, from the point of view of
2442 the language, each instantiation of S results in a wholly unrelated
2443 global function f. In this case, DECL_TEMPLATE_INFO for S<int>::f
2444 will be non-NULL, but DECL_USE_TEMPLATE will be zero. */
2445 #define DECL_TEMPLATE_INFO(NODE) \
2446 (DECL_LANG_SPECIFIC (VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK (NODE)) \
2447 ->u.min.template_info)
2449 /* For a VAR_DECL, indicates that the variable is actually a
2450 non-static data member of anonymous union that has been promoted to
2452 #define DECL_ANON_UNION_VAR_P(NODE) \
2453 (DECL_LANG_FLAG_4 (VAR_DECL_CHECK (NODE)))
2455 /* Template information for a RECORD_TYPE or UNION_TYPE. */
2456 #define CLASSTYPE_TEMPLATE_INFO(NODE) \
2457 (LANG_TYPE_CLASS_CHECK (RECORD_OR_UNION_CHECK (NODE))->template_info)
2459 /* Template information for an ENUMERAL_TYPE. Although an enumeration may
2460 not be a primary template, it may be declared within the scope of a
2461 primary template and the enumeration constants may depend on
2462 non-type template parameters. */
2463 #define ENUM_TEMPLATE_INFO(NODE) \
2464 (TYPE_LANG_SLOT_1 (ENUMERAL_TYPE_CHECK (NODE)))
2466 /* Template information for a template template parameter. */
2467 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO(NODE) \
2468 (LANG_TYPE_CLASS_CHECK (BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK (NODE)) \
2471 /* Template information for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2472 #define TYPE_TEMPLATE_INFO(NODE) \
2473 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2474 ? ENUM_TEMPLATE_INFO (NODE) : \
2475 (TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM \
2476 ? TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO (NODE) : \
2477 (TYPE_LANG_SPECIFIC (NODE) \
2478 ? CLASSTYPE_TEMPLATE_INFO (NODE) \
2481 /* Set the template information for an ENUMERAL_, RECORD_, or
2482 UNION_TYPE to VAL. */
2483 #define SET_TYPE_TEMPLATE_INFO(NODE, VAL) \
2484 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2485 ? (ENUM_TEMPLATE_INFO (NODE) = (VAL)) \
2486 : (CLASSTYPE_TEMPLATE_INFO (NODE) = (VAL)))
2488 #define TI_TEMPLATE(NODE) TREE_TYPE (TEMPLATE_INFO_CHECK (NODE))
2489 #define TI_ARGS(NODE) TREE_CHAIN (TEMPLATE_INFO_CHECK (NODE))
2490 #define TI_PENDING_TEMPLATE_FLAG(NODE) TREE_LANG_FLAG_1 (NODE)
2491 /* The list of typedefs - used in the template - that need
2492 access checking at template instantiation time. */
2493 #define TI_TYPEDEFS_NEEDING_ACCESS_CHECKING(NODE) \
2494 ((struct tree_template_info*)TEMPLATE_INFO_CHECK \
2495 (NODE))->typedefs_needing_access_checking
2497 /* We use TREE_VECs to hold template arguments. If there is only one
2498 level of template arguments, then the TREE_VEC contains the
2499 arguments directly. If there is more than one level of template
2500 arguments, then each entry in the TREE_VEC is itself a TREE_VEC,
2501 containing the template arguments for a single level. The first
2502 entry in the outer TREE_VEC is the outermost level of template
2503 parameters; the last is the innermost.
2505 It is incorrect to ever form a template argument vector containing
2506 only one level of arguments, but which is a TREE_VEC containing as
2507 its only entry the TREE_VEC for that level. */
2509 /* Nonzero if the template arguments is actually a vector of vectors,
2510 rather than just a vector. */
2511 #define TMPL_ARGS_HAVE_MULTIPLE_LEVELS(NODE) \
2512 (NODE && TREE_VEC_LENGTH (NODE) && TREE_VEC_ELT (NODE, 0) \
2513 && TREE_CODE (TREE_VEC_ELT (NODE, 0)) == TREE_VEC)
2515 /* The depth of a template argument vector. When called directly by
2516 the parser, we use a TREE_LIST rather than a TREE_VEC to represent
2517 template arguments. In fact, we may even see NULL_TREE if there
2518 are no template arguments. In both of those cases, there is only
2519 one level of template arguments. */
2520 #define TMPL_ARGS_DEPTH(NODE) \
2521 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (NODE) ? TREE_VEC_LENGTH (NODE) : 1)
2523 /* The LEVELth level of the template ARGS. The outermost level of
2524 args is level 1, not level 0. */
2525 #define TMPL_ARGS_LEVEL(ARGS, LEVEL) \
2526 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (ARGS) \
2527 ? TREE_VEC_ELT (ARGS, (LEVEL) - 1) : (ARGS))
2529 /* Set the LEVELth level of the template ARGS to VAL. This macro does
2530 not work with single-level argument vectors. */
2531 #define SET_TMPL_ARGS_LEVEL(ARGS, LEVEL, VAL) \
2532 (TREE_VEC_ELT (ARGS, (LEVEL) - 1) = (VAL))
2534 /* Accesses the IDXth parameter in the LEVELth level of the ARGS. */
2535 #define TMPL_ARG(ARGS, LEVEL, IDX) \
2536 (TREE_VEC_ELT (TMPL_ARGS_LEVEL (ARGS, LEVEL), IDX))
2538 /* Given a single level of template arguments in NODE, return the
2539 number of arguments. */
2540 #define NUM_TMPL_ARGS(NODE) \
2541 (TREE_VEC_LENGTH (NODE))
2543 /* Returns the innermost level of template arguments in ARGS. */
2544 #define INNERMOST_TEMPLATE_ARGS(NODE) \
2545 (get_innermost_template_args ((NODE), 1))
2547 /* The number of levels of template parameters given by NODE. */
2548 #define TMPL_PARMS_DEPTH(NODE) \
2549 ((HOST_WIDE_INT) TREE_INT_CST_LOW (TREE_PURPOSE (NODE)))
2551 /* The TEMPLATE_DECL instantiated or specialized by NODE. This
2552 TEMPLATE_DECL will be the immediate parent, not the most general
2553 template. For example, in:
2555 template <class T> struct S { template <class U> void f(U); }
2557 the FUNCTION_DECL for S<int>::f<double> will have, as its
2558 DECL_TI_TEMPLATE, `template <class U> S<int>::f<U>'.
2560 As a special case, for a member friend template of a template
2561 class, this value will not be a TEMPLATE_DECL, but rather an
2562 IDENTIFIER_NODE or OVERLOAD indicating the name of the template and
2563 any explicit template arguments provided. For example, in:
2565 template <class T> struct S { friend void f<int>(int, double); }
2567 the DECL_TI_TEMPLATE will be an IDENTIFIER_NODE for `f' and the
2568 DECL_TI_ARGS will be {int}. */
2569 #define DECL_TI_TEMPLATE(NODE) TI_TEMPLATE (DECL_TEMPLATE_INFO (NODE))
2571 /* The template arguments used to obtain this decl from the most
2572 general form of DECL_TI_TEMPLATE. For the example given for
2573 DECL_TI_TEMPLATE, the DECL_TI_ARGS will be {int, double}. These
2574 are always the full set of arguments required to instantiate this
2575 declaration from the most general template specialized here. */
2576 #define DECL_TI_ARGS(NODE) TI_ARGS (DECL_TEMPLATE_INFO (NODE))
2578 /* The TEMPLATE_DECL associated with NODE, a class type. Even if NODE
2579 will be generated from a partial specialization, the TEMPLATE_DECL
2580 referred to here will be the original template. For example,
2583 template <typename T> struct S {};
2584 template <typename T> struct S<T*> {};
2586 the CLASSTPYE_TI_TEMPLATE for S<int*> will be S, not the S<T*>. */
2587 #define CLASSTYPE_TI_TEMPLATE(NODE) TI_TEMPLATE (CLASSTYPE_TEMPLATE_INFO (NODE))
2588 #define CLASSTYPE_TI_ARGS(NODE) TI_ARGS (CLASSTYPE_TEMPLATE_INFO (NODE))
2590 /* For a template instantiation TYPE, returns the TYPE corresponding
2591 to the primary template. Otherwise returns TYPE itself. */
2592 #define CLASSTYPE_PRIMARY_TEMPLATE_TYPE(TYPE) \
2593 ((CLASSTYPE_USE_TEMPLATE ((TYPE)) \
2594 && !CLASSTYPE_TEMPLATE_SPECIALIZATION ((TYPE))) \
2595 ? TREE_TYPE (DECL_TEMPLATE_RESULT (DECL_PRIMARY_TEMPLATE \
2596 (CLASSTYPE_TI_TEMPLATE ((TYPE))))) \
2599 /* Like CLASS_TI_TEMPLATE, but also works for ENUMERAL_TYPEs. */
2600 #define TYPE_TI_TEMPLATE(NODE) \
2601 (TI_TEMPLATE (TYPE_TEMPLATE_INFO (NODE)))
2603 /* Like DECL_TI_ARGS, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2604 #define TYPE_TI_ARGS(NODE) \
2605 (TI_ARGS (TYPE_TEMPLATE_INFO (NODE)))
2607 #define INNERMOST_TEMPLATE_PARMS(NODE) TREE_VALUE (NODE)
2609 /* Nonzero if NODE (a TEMPLATE_DECL) is a member template, in the
2610 sense of [temp.mem]. */
2611 #define DECL_MEMBER_TEMPLATE_P(NODE) \
2612 (DECL_LANG_FLAG_1 (TEMPLATE_DECL_CHECK (NODE)))
2614 /* Nonzero if the NODE corresponds to the template parameters for a
2615 member template, whose inline definition is being processed after
2616 the class definition is complete. */
2617 #define TEMPLATE_PARMS_FOR_INLINE(NODE) TREE_LANG_FLAG_1 (NODE)
2619 /* Determine if a parameter (i.e., a PARM_DECL) is a function
2621 #define FUNCTION_PARAMETER_PACK_P(NODE) \
2622 (DECL_LANG_FLAG_1 (PARM_DECL_CHECK (NODE)))
2624 /* Determines if NODE is an expansion of one or more parameter packs,
2625 e.g., a TYPE_PACK_EXPANSION or EXPR_PACK_EXPANSION. */
2626 #define PACK_EXPANSION_P(NODE) \
2627 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION \
2628 || TREE_CODE (NODE) == EXPR_PACK_EXPANSION)
2630 /* Extracts the type or expression pattern from a TYPE_PACK_EXPANSION or
2631 EXPR_PACK_EXPANSION. */
2632 #define PACK_EXPANSION_PATTERN(NODE) \
2633 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION? TREE_TYPE (NODE) \
2634 : TREE_OPERAND (NODE, 0))
2636 /* Sets the type or expression pattern for a TYPE_PACK_EXPANSION or
2637 EXPR_PACK_EXPANSION. */
2638 #define SET_PACK_EXPANSION_PATTERN(NODE,VALUE) \
2639 if (TREE_CODE (NODE) == TYPE_PACK_EXPANSION) \
2640 TREE_TYPE (NODE) = VALUE; \
2642 TREE_OPERAND (NODE, 0) = VALUE
2644 /* The list of parameter packs used in the PACK_EXPANSION_* node. The
2645 TREE_VALUE of each TREE_LIST contains the parameter packs. */
2646 #define PACK_EXPANSION_PARAMETER_PACKS(NODE) TREE_CHAIN (NODE)
2648 /* Determine if this is an argument pack. */
2649 #define ARGUMENT_PACK_P(NODE) \
2650 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK \
2651 || TREE_CODE (NODE) == NONTYPE_ARGUMENT_PACK)
2653 /* The arguments stored in an argument pack. Arguments are stored in a
2654 TREE_VEC, which may have length zero. */
2655 #define ARGUMENT_PACK_ARGS(NODE) \
2656 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK? TREE_TYPE (NODE) \
2657 : TREE_OPERAND (NODE, 0))
2659 /* Set the arguments stored in an argument pack. VALUE must be a
2661 #define SET_ARGUMENT_PACK_ARGS(NODE,VALUE) \
2662 if (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK) \
2663 TREE_TYPE (NODE) = VALUE; \
2665 TREE_OPERAND (NODE, 0) = VALUE
2667 /* Whether the argument pack is "incomplete", meaning that more
2668 arguments can still be deduced. Incomplete argument packs are only
2669 used when the user has provided an explicit template argument list
2670 for a variadic function template. Some of the explicit template
2671 arguments will be placed into the beginning of the argument pack,
2672 but additional arguments might still be deduced. */
2673 #define ARGUMENT_PACK_INCOMPLETE_P(NODE) \
2674 TREE_LANG_FLAG_0 (ARGUMENT_PACK_ARGS (NODE))
2676 /* When ARGUMENT_PACK_INCOMPLETE_P, stores the explicit template
2677 arguments used to fill this pack. */
2678 #define ARGUMENT_PACK_EXPLICIT_ARGS(NODE) \
2679 TREE_TYPE (ARGUMENT_PACK_ARGS (NODE))
2681 /* In an ARGUMENT_PACK_SELECT, the argument pack from which an
2682 argument will be selected. */
2683 #define ARGUMENT_PACK_SELECT_FROM_PACK(NODE) \
2684 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->argument_pack)
2686 /* In an ARGUMENT_PACK_SELECT, the index of the argument we want to
2688 #define ARGUMENT_PACK_SELECT_INDEX(NODE) \
2689 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->index)
2691 /* In an ARGUMENT_PACK_SELECT, the actual underlying argument that the
2692 ARGUMENT_PACK_SELECT represents. */
2693 #define ARGUMENT_PACK_SELECT_ARG(NODE) \
2694 TREE_VEC_ELT (ARGUMENT_PACK_ARGS (ARGUMENT_PACK_SELECT_FROM_PACK (NODE)), \
2695 ARGUMENT_PACK_SELECT_INDEX (NODE));
2697 /* In a FUNCTION_DECL, the saved language-specific per-function data. */
2698 #define DECL_SAVED_FUNCTION_DATA(NODE) \
2699 (LANG_DECL_FN_CHECK (FUNCTION_DECL_CHECK (NODE)) \
2700 ->u.saved_language_function)
2702 /* Indicates an indirect_expr is for converting a reference. */
2703 #define REFERENCE_REF_P(NODE) \
2704 TREE_LANG_FLAG_0 (INDIRECT_REF_CHECK (NODE))
2706 #define NEW_EXPR_USE_GLOBAL(NODE) \
2707 TREE_LANG_FLAG_0 (NEW_EXPR_CHECK (NODE))
2708 #define DELETE_EXPR_USE_GLOBAL(NODE) \
2709 TREE_LANG_FLAG_0 (DELETE_EXPR_CHECK (NODE))
2710 #define DELETE_EXPR_USE_VEC(NODE) \
2711 TREE_LANG_FLAG_1 (DELETE_EXPR_CHECK (NODE))
2713 /* Indicates that this is a non-dependent COMPOUND_EXPR which will
2714 resolve to a function call. */
2715 #define COMPOUND_EXPR_OVERLOADED(NODE) \
2716 TREE_LANG_FLAG_0 (COMPOUND_EXPR_CHECK (NODE))
2718 /* In a CALL_EXPR appearing in a template, true if Koenig lookup
2719 should be performed at instantiation time. */
2720 #define KOENIG_LOOKUP_P(NODE) TREE_LANG_FLAG_0 (CALL_EXPR_CHECK (NODE))
2722 /* Indicates whether a string literal has been parenthesized. Such
2723 usages are disallowed in certain circumstances. */
2725 #define PAREN_STRING_LITERAL_P(NODE) \
2726 TREE_LANG_FLAG_0 (STRING_CST_CHECK (NODE))
2728 /* Nonzero if this AGGR_INIT_EXPR provides for initialization via a
2729 constructor call, rather than an ordinary function call. */
2730 #define AGGR_INIT_VIA_CTOR_P(NODE) \
2731 TREE_LANG_FLAG_0 (AGGR_INIT_EXPR_CHECK (NODE))
2733 /* Nonzero if expanding this AGGR_INIT_EXPR should first zero-initialize
2735 #define AGGR_INIT_ZERO_FIRST(NODE) \
2736 TREE_LANG_FLAG_2 (AGGR_INIT_EXPR_CHECK (NODE))
2738 /* AGGR_INIT_EXPR accessors. These are equivalent to the CALL_EXPR
2739 accessors, except for AGGR_INIT_EXPR_SLOT (which takes the place of
2740 CALL_EXPR_STATIC_CHAIN). */
2742 #define AGGR_INIT_EXPR_FN(NODE) TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 1)
2743 #define AGGR_INIT_EXPR_SLOT(NODE) \
2744 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 2)
2745 #define AGGR_INIT_EXPR_ARG(NODE, I) \
2746 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), (I) + 3)
2747 #define aggr_init_expr_nargs(NODE) (VL_EXP_OPERAND_LENGTH(NODE) - 3)
2749 /* AGGR_INIT_EXPR_ARGP returns a pointer to the argument vector for NODE.
2750 We can't use &AGGR_INIT_EXPR_ARG (NODE, 0) because that will complain if
2751 the argument count is zero when checking is enabled. Instead, do
2752 the pointer arithmetic to advance past the 3 fixed operands in a
2753 AGGR_INIT_EXPR. That produces a valid pointer to just past the end of
2754 the operand array, even if it's not valid to dereference it. */
2755 #define AGGR_INIT_EXPR_ARGP(NODE) \
2756 (&(TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 0)) + 3)
2758 /* Abstract iterators for AGGR_INIT_EXPRs. */
2760 /* Structure containing iterator state. */
2761 typedef struct GTY (()) aggr_init_expr_arg_iterator_d {
2762 tree t; /* the aggr_init_expr */
2763 int n; /* argument count */
2764 int i; /* next argument index */
2765 } aggr_init_expr_arg_iterator;
2767 /* Initialize the abstract argument list iterator object ITER with the
2768 arguments from AGGR_INIT_EXPR node EXP. */
2770 init_aggr_init_expr_arg_iterator (tree exp,
2771 aggr_init_expr_arg_iterator *iter)
2774 iter->n = aggr_init_expr_nargs (exp);
2778 /* Return the next argument from abstract argument list iterator object ITER,
2779 and advance its state. Return NULL_TREE if there are no more arguments. */
2781 next_aggr_init_expr_arg (aggr_init_expr_arg_iterator *iter)
2784 if (iter->i >= iter->n)
2786 result = AGGR_INIT_EXPR_ARG (iter->t, iter->i);
2791 /* Initialize the abstract argument list iterator object ITER, then advance
2792 past and return the first argument. Useful in for expressions, e.g.
2793 for (arg = first_aggr_init_expr_arg (exp, &iter); arg;
2794 arg = next_aggr_init_expr_arg (&iter)) */
2796 first_aggr_init_expr_arg (tree exp, aggr_init_expr_arg_iterator *iter)
2798 init_aggr_init_expr_arg_iterator (exp, iter);
2799 return next_aggr_init_expr_arg (iter);
2802 /* Test whether there are more arguments in abstract argument list iterator
2803 ITER, without changing its state. */
2805 more_aggr_init_expr_args_p (const aggr_init_expr_arg_iterator *iter)
2807 return (iter->i < iter->n);
2810 /* Iterate through each argument ARG of AGGR_INIT_EXPR CALL, using variable
2811 ITER (of type aggr_init_expr_arg_iterator) to hold the iteration state. */
2812 #define FOR_EACH_AGGR_INIT_EXPR_ARG(arg, iter, call) \
2813 for ((arg) = first_aggr_init_expr_arg ((call), &(iter)); (arg); \
2814 (arg) = next_aggr_init_expr_arg (&(iter)))
2816 /* VEC_INIT_EXPR accessors. */
2817 #define VEC_INIT_EXPR_SLOT(NODE) TREE_OPERAND (NODE, 0)
2818 #define VEC_INIT_EXPR_INIT(NODE) TREE_OPERAND (NODE, 1)
2820 /* The TYPE_MAIN_DECL for a class template type is a TYPE_DECL, not a
2821 TEMPLATE_DECL. This macro determines whether or not a given class
2822 type is really a template type, as opposed to an instantiation or
2823 specialization of one. */
2824 #define CLASSTYPE_IS_TEMPLATE(NODE) \
2825 (CLASSTYPE_TEMPLATE_INFO (NODE) \
2826 && !CLASSTYPE_USE_TEMPLATE (NODE) \
2827 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE)))
2829 /* The name used by the user to name the typename type. Typically,
2830 this is an IDENTIFIER_NODE, and the same as the DECL_NAME on the
2831 corresponding TYPE_DECL. However, this may also be a
2832 TEMPLATE_ID_EXPR if we had something like `typename X::Y<T>'. */
2833 #define TYPENAME_TYPE_FULLNAME(NODE) (TYPENAME_TYPE_CHECK (NODE))->type.values
2835 /* True if a TYPENAME_TYPE was declared as an "enum". */
2836 #define TYPENAME_IS_ENUM_P(NODE) \
2837 (TREE_LANG_FLAG_0 (TYPENAME_TYPE_CHECK (NODE)))
2839 /* True if a TYPENAME_TYPE was declared as a "class", "struct", or
2841 #define TYPENAME_IS_CLASS_P(NODE) \
2842 (TREE_LANG_FLAG_1 (TYPENAME_TYPE_CHECK (NODE)))
2844 /* True if a TYPENAME_TYPE is in the process of being resolved. */
2845 #define TYPENAME_IS_RESOLVING_P(NODE) \
2846 (TREE_LANG_FLAG_2 (TYPENAME_TYPE_CHECK (NODE)))
2848 /* Nonzero in INTEGER_CST means that this int is negative by dint of
2849 using a twos-complement negated operand. */
2850 #define TREE_NEGATED_INT(NODE) TREE_LANG_FLAG_0 (INTEGER_CST_CHECK (NODE))
2854 A class that declares or inherits a virtual function is called a
2855 polymorphic class. */
2856 #define TYPE_POLYMORPHIC_P(NODE) (TREE_LANG_FLAG_2 (NODE))
2858 /* Nonzero if this class has a virtual function table pointer. */
2859 #define TYPE_CONTAINS_VPTR_P(NODE) \
2860 (TYPE_POLYMORPHIC_P (NODE) || CLASSTYPE_VBASECLASSES (NODE))
2862 /* This flag is true of a local VAR_DECL if it was declared in a for
2863 statement, but we are no longer in the scope of the for. */
2864 #define DECL_DEAD_FOR_LOCAL(NODE) DECL_LANG_FLAG_7 (VAR_DECL_CHECK (NODE))
2866 /* This flag is set on a VAR_DECL that is a DECL_DEAD_FOR_LOCAL
2867 if we already emitted a warning about using it. */
2868 #define DECL_ERROR_REPORTED(NODE) DECL_LANG_FLAG_0 (VAR_DECL_CHECK (NODE))
2870 /* Nonzero if NODE is a FUNCTION_DECL (for a function with global
2871 scope) declared in a local scope. */
2872 #define DECL_LOCAL_FUNCTION_P(NODE) \
2873 DECL_LANG_FLAG_0 (FUNCTION_DECL_CHECK (NODE))
2875 /* Nonzero if NODE is a DECL which we know about but which has not
2876 been explicitly declared, such as a built-in function or a friend
2877 declared inside a class. In the latter case DECL_HIDDEN_FRIEND_P
2879 #define DECL_ANTICIPATED(NODE) \
2880 (DECL_LANG_SPECIFIC (DECL_COMMON_CHECK (NODE))->u.base.anticipated_p)
2882 /* Nonzero if NODE is a FUNCTION_DECL which was declared as a friend
2883 within a class but has not been declared in the surrounding scope.
2884 The function is invisible except via argument dependent lookup. */
2885 #define DECL_HIDDEN_FRIEND_P(NODE) \
2886 (LANG_DECL_FN_CHECK (DECL_COMMON_CHECK (NODE))->hidden_friend_p)
2888 /* Nonzero if DECL has been declared threadprivate by
2889 #pragma omp threadprivate. */
2890 #define CP_DECL_THREADPRIVATE_P(DECL) \
2891 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (DECL))->u.base.threadprivate_or_deleted_p)
2893 /* Nonzero if DECL was declared with '= delete'. */
2894 #define DECL_DELETED_FN(DECL) \
2895 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->u.base.threadprivate_or_deleted_p)
2897 /* Nonzero if DECL was declared with '= default' (maybe implicitly). */
2898 #define DECL_DEFAULTED_FN(DECL) \
2899 (LANG_DECL_FN_CHECK (DECL)->defaulted_p)
2901 /* Nonzero if DECL is explicitly defaulted in the class body. */
2902 #define DECL_DEFAULTED_IN_CLASS_P(DECL) \
2903 (DECL_DEFAULTED_FN (DECL) && DECL_INITIALIZED_IN_CLASS_P (DECL))
2904 /* Nonzero if DECL was defaulted outside the class body. */
2905 #define DECL_DEFAULTED_OUTSIDE_CLASS_P(DECL) \
2906 (DECL_DEFAULTED_FN (DECL) \
2907 && !(DECL_ARTIFICIAL (DECL) || DECL_INITIALIZED_IN_CLASS_P (DECL)))
2909 /* Record whether a typedef for type `int' was actually `signed int'. */
2910 #define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP)
2912 /* Returns nonzero if DECL has external linkage, as specified by the
2913 language standard. (This predicate may hold even when the
2914 corresponding entity is not actually given external linkage in the
2915 object file; see decl_linkage for details.) */
2916 #define DECL_EXTERNAL_LINKAGE_P(DECL) \
2917 (decl_linkage (DECL) == lk_external)
2919 /* Keep these codes in ascending code order. */
2921 #define INTEGRAL_CODE_P(CODE) \
2922 ((CODE) == ENUMERAL_TYPE \
2923 || (CODE) == BOOLEAN_TYPE \
2924 || (CODE) == INTEGER_TYPE)
2926 /* [basic.fundamental]
2928 Types bool, char, wchar_t, and the signed and unsigned integer types
2929 are collectively called integral types.
2931 Note that INTEGRAL_TYPE_P, as defined in tree.h, allows enumeration
2932 types as well, which is incorrect in C++. Keep these checks in
2933 ascending code order. */
2934 #define CP_INTEGRAL_TYPE_P(TYPE) \
2935 (TREE_CODE (TYPE) == BOOLEAN_TYPE \
2936 || TREE_CODE (TYPE) == INTEGER_TYPE)
2938 /* Returns true if TYPE is an integral or enumeration name. Keep
2939 these checks in ascending code order. */
2940 #define INTEGRAL_OR_ENUMERATION_TYPE_P(TYPE) \
2941 (TREE_CODE (TYPE) == ENUMERAL_TYPE || CP_INTEGRAL_TYPE_P (TYPE))
2943 /* Returns true if TYPE is an integral or unscoped enumeration type. */
2944 #define INTEGRAL_OR_UNSCOPED_ENUMERATION_TYPE_P(TYPE) \
2945 (UNSCOPED_ENUM_P (TYPE) || CP_INTEGRAL_TYPE_P (TYPE))
2947 /* True if the class type TYPE is a literal type. */
2948 #define CLASSTYPE_LITERAL_P(TYPE) \
2949 (LANG_TYPE_CLASS_CHECK (TYPE)->is_literal)
2951 /* [basic.fundamental]
2953 Integral and floating types are collectively called arithmetic
2956 As a GNU extension, we also accept complex types.
2958 Keep these checks in ascending code order. */
2959 #define ARITHMETIC_TYPE_P(TYPE) \
2960 (CP_INTEGRAL_TYPE_P (TYPE) \
2961 || TREE_CODE (TYPE) == REAL_TYPE \
2962 || TREE_CODE (TYPE) == COMPLEX_TYPE)
2966 Arithmetic types, enumeration types, pointer types, and
2967 pointer-to-member types, are collectively called scalar types.
2969 Keep these checks in ascending code order. */
2970 #define SCALAR_TYPE_P(TYPE) \
2971 (TYPE_PTRMEM_P (TYPE) \
2972 || TREE_CODE (TYPE) == ENUMERAL_TYPE \
2973 || ARITHMETIC_TYPE_P (TYPE) \
2974 || TYPE_PTR_P (TYPE) \
2975 || TYPE_PTRMEMFUNC_P (TYPE))
2977 /* Determines whether this type is a C++0x scoped enumeration
2978 type. Scoped enumerations types are introduced via "enum class" or
2979 "enum struct", e.g.,
2985 Scoped enumeration types are different from normal (unscoped)
2986 enumeration types in several ways:
2988 - The enumerators of a scoped enumeration type are only available
2989 within the scope of the enumeration type and not in the
2990 enclosing scope. For example, the Red color can be referred to
2991 with "Color::Red" but not "Red".
2993 - Scoped enumerators and enumerations do not implicitly convert
2994 to integers or 'bool'.
2996 - The underlying type of the enum is well-defined. */
2997 #define SCOPED_ENUM_P(TYPE) \
2998 (TREE_CODE (TYPE) == ENUMERAL_TYPE && TYPE_LANG_FLAG_5 (TYPE))
3000 /* Determine whether this is an unscoped enumeration type. */
3001 #define UNSCOPED_ENUM_P(TYPE) \
3002 (TREE_CODE (TYPE) == ENUMERAL_TYPE && !TYPE_LANG_FLAG_5 (TYPE))
3004 /* Set the flag indicating whether an ENUMERAL_TYPE is a C++0x scoped
3005 enumeration type (1) or a normal (unscoped) enumeration type
3007 #define SET_SCOPED_ENUM_P(TYPE, VAL) \
3008 (TYPE_LANG_FLAG_5 (ENUMERAL_TYPE_CHECK (TYPE)) = (VAL))
3010 /* Returns the underlying type of the given enumeration type. The
3011 underlying type is determined in different ways, depending on the
3012 properties of the enum:
3014 - In C++0x, the underlying type can be explicitly specified, e.g.,
3016 enum E1 : char { ... } // underlying type is char
3018 - In a C++0x scoped enumeration, the underlying type is int
3019 unless otherwises specified:
3021 enum class E2 { ... } // underlying type is int
3023 - Otherwise, the underlying type is determined based on the
3024 values of the enumerators. In this case, the
3025 ENUM_UNDERLYING_TYPE will not be set until after the definition
3026 of the enumeration is completed by finish_enum. */
3027 #define ENUM_UNDERLYING_TYPE(TYPE) \
3028 TREE_TYPE (ENUMERAL_TYPE_CHECK (TYPE))
3032 An aggregate is an array or a class with no user-declared
3033 constructors, no private or protected non-static data members, no
3034 base classes, and no virtual functions.
3036 As an extension, we also treat vectors as aggregates. Keep these
3037 checks in ascending code order. */
3038 #define CP_AGGREGATE_TYPE_P(TYPE) \
3039 (TREE_CODE (TYPE) == VECTOR_TYPE \
3040 ||TREE_CODE (TYPE) == ARRAY_TYPE \
3041 || (CLASS_TYPE_P (TYPE) && !CLASSTYPE_NON_AGGREGATE (TYPE)))
3043 /* Nonzero for a class type means that the class type has a
3044 user-declared constructor. */
3045 #define TYPE_HAS_USER_CONSTRUCTOR(NODE) (TYPE_LANG_FLAG_1 (NODE))
3047 /* When appearing in an INDIRECT_REF, it means that the tree structure
3048 underneath is actually a call to a constructor. This is needed
3049 when the constructor must initialize local storage (which can
3050 be automatically destroyed), rather than allowing it to allocate
3051 space from the heap.
3053 When appearing in a SAVE_EXPR, it means that underneath
3054 is a call to a constructor.
3056 When appearing in a CONSTRUCTOR, the expression is a
3059 When appearing in a FIELD_DECL, it means that this field
3060 has been duly initialized in its constructor. */
3061 #define TREE_HAS_CONSTRUCTOR(NODE) (TREE_LANG_FLAG_4 (NODE))
3063 /* True if NODE is a brace-enclosed initializer. */
3064 #define BRACE_ENCLOSED_INITIALIZER_P(NODE) \
3065 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_TYPE (NODE) == init_list_type_node)
3067 /* True if NODE is a compound-literal, i.e., a brace-enclosed
3068 initializer cast to a particular type. */
3069 #define COMPOUND_LITERAL_P(NODE) \
3070 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_HAS_CONSTRUCTOR (NODE))
3072 #define EMPTY_CONSTRUCTOR_P(NODE) (TREE_CODE (NODE) == CONSTRUCTOR \
3073 && VEC_empty (constructor_elt, \
3074 CONSTRUCTOR_ELTS (NODE)) \
3075 && !TREE_HAS_CONSTRUCTOR (NODE))
3077 /* True if NODE is a init-list used as a direct-initializer, i.e.
3078 B b{1,2}, not B b({1,2}) or B b = {1,2}. */
3079 #define CONSTRUCTOR_IS_DIRECT_INIT(NODE) (TREE_LANG_FLAG_0 (CONSTRUCTOR_CHECK (NODE)))
3081 /* Nonzero means that an object of this type can not be initialized using
3082 an initializer list. */
3083 #define CLASSTYPE_NON_AGGREGATE(NODE) \
3084 (LANG_TYPE_CLASS_CHECK (NODE)->non_aggregate)
3085 #define TYPE_NON_AGGREGATE_CLASS(NODE) \
3086 (CLASS_TYPE_P (NODE) && CLASSTYPE_NON_AGGREGATE (NODE))
3088 /* Nonzero if there is a user-defined X::op=(x&) for this class. */
3089 #define TYPE_HAS_COMPLEX_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_assign_ref)
3091 /* Nonzero if there is a user-defined X::X(x&) for this class. */
3092 #define TYPE_HAS_COMPLEX_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_init_ref)
3094 /* Nonzero if there is a user-defined default constructor for this class. */
3095 #define TYPE_HAS_COMPLEX_DFLT(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_dflt)
3097 /* Nonzero if TYPE has a trivial destructor. From [class.dtor]:
3099 A destructor is trivial if it is an implicitly declared
3102 - all of the direct base classes of its class have trivial
3105 - for all of the non-static data members of its class that are
3106 of class type (or array thereof), each such class has a
3107 trivial destructor. */
3108 #define TYPE_HAS_TRIVIAL_DESTRUCTOR(NODE) \
3109 (!TYPE_HAS_NONTRIVIAL_DESTRUCTOR (NODE))
3111 /* Nonzero for _TYPE node means that this type does not have a trivial
3112 destructor. Therefore, destroying an object of this type will
3113 involve a call to a destructor. This can apply to objects of
3114 ARRAY_TYPE is the type of the elements needs a destructor. */
3115 #define TYPE_HAS_NONTRIVIAL_DESTRUCTOR(NODE) \
3116 (TYPE_LANG_FLAG_4 (NODE))
3118 /* Nonzero for class type means that the default constructor is trivial. */
3119 #define TYPE_HAS_TRIVIAL_DFLT(NODE) \
3120 (TYPE_HAS_DEFAULT_CONSTRUCTOR (NODE) && ! TYPE_HAS_COMPLEX_DFLT (NODE))
3122 /* Nonzero for class type means that copy initialization of this type can use
3124 #define TYPE_HAS_TRIVIAL_INIT_REF(NODE) \
3125 (TYPE_HAS_INIT_REF (NODE) && ! TYPE_HAS_COMPLEX_INIT_REF (NODE))
3127 /* Nonzero for class type means that assignment of this type can use
3129 #define TYPE_HAS_TRIVIAL_ASSIGN_REF(NODE) \
3130 (TYPE_HAS_ASSIGN_REF (NODE) && ! TYPE_HAS_COMPLEX_ASSIGN_REF (NODE))
3132 /* Returns true if NODE is a pointer-to-data-member. */
3133 #define TYPE_PTRMEM_P(NODE) \
3134 (TREE_CODE (NODE) == OFFSET_TYPE)
3135 /* Returns true if NODE is a pointer. */
3136 #define TYPE_PTR_P(NODE) \
3137 (TREE_CODE (NODE) == POINTER_TYPE)
3139 /* Returns true if NODE is an object type:
3143 An object type is a (possibly cv-qualified) type that is not a
3144 function type, not a reference type, and not a void type.
3146 Keep these checks in ascending order, for speed. */
3147 #define TYPE_OBJ_P(NODE) \
3148 (TREE_CODE (NODE) != REFERENCE_TYPE \
3149 && TREE_CODE (NODE) != VOID_TYPE \
3150 && TREE_CODE (NODE) != FUNCTION_TYPE \
3151 && TREE_CODE (NODE) != METHOD_TYPE)
3153 /* Returns true if NODE is a pointer to an object. Keep these checks
3154 in ascending tree code order. */
3155 #define TYPE_PTROB_P(NODE) \
3156 (TYPE_PTR_P (NODE) && TYPE_OBJ_P (TREE_TYPE (NODE)))
3158 /* Returns true if NODE is a reference to an object. Keep these checks
3159 in ascending tree code order. */
3160 #define TYPE_REF_OBJ_P(NODE) \
3161 (TREE_CODE (NODE) == REFERENCE_TYPE && TYPE_OBJ_P (TREE_TYPE (NODE)))
3163 /* True if reference type NODE is an rvalue reference */
3164 #define TYPE_REF_IS_RVALUE(NODE) \
3165 TREE_LANG_FLAG_0 (REFERENCE_TYPE_CHECK (NODE))
3167 /* Returns true if NODE is a pointer to an object, or a pointer to
3168 void. Keep these checks in ascending tree code order. */
3169 #define TYPE_PTROBV_P(NODE) \
3170 (TYPE_PTR_P (NODE) \
3171 && !(TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE \
3172 || TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE))
3174 /* Returns true if NODE is a pointer to function. */
3175 #define TYPE_PTRFN_P(NODE) \
3176 (TREE_CODE (NODE) == POINTER_TYPE \
3177 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
3179 /* Returns true if NODE is a reference to function. */
3180 #define TYPE_REFFN_P(NODE) \
3181 (TREE_CODE (NODE) == REFERENCE_TYPE \
3182 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
3184 /* Nonzero for _TYPE node means that this type is a pointer to member
3186 #define TYPE_PTRMEMFUNC_P(NODE) \
3187 (TREE_CODE (NODE) == RECORD_TYPE \
3188 && TYPE_LANG_SPECIFIC (NODE) \
3189 && TYPE_PTRMEMFUNC_FLAG (NODE))
3191 #define TYPE_PTRMEMFUNC_FLAG(NODE) \
3192 (LANG_TYPE_CLASS_CHECK (NODE)->ptrmemfunc_flag)
3194 /* Returns true if NODE is a pointer-to-member. */
3195 #define TYPE_PTR_TO_MEMBER_P(NODE) \
3196 (TYPE_PTRMEM_P (NODE) || TYPE_PTRMEMFUNC_P (NODE))
3198 /* Indicates when overload resolution may resolve to a pointer to
3199 member function. [expr.unary.op]/3 */
3200 #define PTRMEM_OK_P(NODE) \
3201 TREE_LANG_FLAG_0 (TREE_CHECK2 ((NODE), ADDR_EXPR, OFFSET_REF))
3203 /* Get the POINTER_TYPE to the METHOD_TYPE associated with this
3204 pointer to member function. TYPE_PTRMEMFUNC_P _must_ be true,
3205 before using this macro. */
3206 #define TYPE_PTRMEMFUNC_FN_TYPE(NODE) \
3207 (TREE_TYPE (TYPE_FIELDS (NODE)))
3209 /* Returns `A' for a type like `int (A::*)(double)' */
3210 #define TYPE_PTRMEMFUNC_OBJECT_TYPE(NODE) \
3211 TYPE_METHOD_BASETYPE (TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
3213 /* These are use to manipulate the canonical RECORD_TYPE from the
3214 hashed POINTER_TYPE, and can only be used on the POINTER_TYPE. */
3215 #define TYPE_GET_PTRMEMFUNC_TYPE(NODE) \
3216 (TYPE_LANG_SPECIFIC (NODE) ? LANG_TYPE_PTRMEM_CHECK (NODE)->record : NULL)
3217 #define TYPE_SET_PTRMEMFUNC_TYPE(NODE, VALUE) \
3219 if (TYPE_LANG_SPECIFIC (NODE) == NULL) \
3221 TYPE_LANG_SPECIFIC (NODE) = GGC_CNEWVAR \
3222 (struct lang_type, sizeof (struct lang_type_ptrmem)); \
3223 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.h.is_lang_type_class = 0; \
3225 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.record = (VALUE); \
3228 /* For a pointer-to-member type of the form `T X::*', this is `X'.
3229 For a type like `void (X::*)() const', this type is `X', not `const
3230 X'. To get at the `const X' you have to look at the
3231 TYPE_PTRMEM_POINTED_TO_TYPE; there, the first parameter will have
3233 #define TYPE_PTRMEM_CLASS_TYPE(NODE) \
3234 (TYPE_PTRMEM_P (NODE) \
3235 ? TYPE_OFFSET_BASETYPE (NODE) \
3236 : TYPE_PTRMEMFUNC_OBJECT_TYPE (NODE))
3238 /* For a pointer-to-member type of the form `T X::*', this is `T'. */
3239 #define TYPE_PTRMEM_POINTED_TO_TYPE(NODE) \
3240 (TYPE_PTRMEM_P (NODE) \
3241 ? TREE_TYPE (NODE) \
3242 : TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
3244 /* For a pointer-to-member constant `X::Y' this is the RECORD_TYPE for
3246 #define PTRMEM_CST_CLASS(NODE) \
3247 TYPE_PTRMEM_CLASS_TYPE (TREE_TYPE (PTRMEM_CST_CHECK (NODE)))
3249 /* For a pointer-to-member constant `X::Y' this is the _DECL for
3251 #define PTRMEM_CST_MEMBER(NODE) (((ptrmem_cst_t)PTRMEM_CST_CHECK (NODE))->member)
3253 /* The expression in question for a TYPEOF_TYPE. */
3254 #define TYPEOF_TYPE_EXPR(NODE) (TYPEOF_TYPE_CHECK (NODE))->type.values
3256 /* The expression in question for a DECLTYPE_TYPE. */
3257 #define DECLTYPE_TYPE_EXPR(NODE) (DECLTYPE_TYPE_CHECK (NODE))->type.values
3259 /* Whether the DECLTYPE_TYPE_EXPR of NODE was originally parsed as an
3260 id-expression or a member-access expression. When false, it was
3261 parsed as a full expression. */
3262 #define DECLTYPE_TYPE_ID_EXPR_OR_MEMBER_ACCESS_P(NODE) \
3263 (DECLTYPE_TYPE_CHECK (NODE))->type.string_flag
3265 /* These flags indicate that we want different semantics from normal
3266 decltype: lambda capture just drops references, lambda return also does
3268 #define DECLTYPE_FOR_LAMBDA_CAPTURE(NODE) \
3269 TREE_LANG_FLAG_0 (DECLTYPE_TYPE_CHECK (NODE))
3270 #define DECLTYPE_FOR_LAMBDA_RETURN(NODE) \
3271 TREE_LANG_FLAG_1 (DECLTYPE_TYPE_CHECK (NODE))
3273 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `extern' was
3274 specified in its declaration. This can also be set for an
3275 erroneously declared PARM_DECL. */
3276 #define DECL_THIS_EXTERN(NODE) \
3277 DECL_LANG_FLAG_2 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
3279 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `static' was
3280 specified in its declaration. This can also be set for an
3281 erroneously declared PARM_DECL. */
3282 #define DECL_THIS_STATIC(NODE) \
3283 DECL_LANG_FLAG_6 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
3285 /* Nonzero for FIELD_DECL node means that this field is a base class
3286 of the parent object, as opposed to a member field. */
3287 #define DECL_FIELD_IS_BASE(NODE) \
3288 DECL_LANG_FLAG_6 (FIELD_DECL_CHECK (NODE))
3290 /* Nonzero for FIELD_DECL node means that this field is a simple (no
3291 explicit initializer) lambda capture field, making it invisible to
3292 name lookup in unevaluated contexts. */
3293 #define DECL_NORMAL_CAPTURE_P(NODE) \
3294 DECL_LANG_FLAG_7 (FIELD_DECL_CHECK (NODE))
3296 /* Nonzero if TYPE is an anonymous union or struct type. We have to use a
3297 flag for this because "A union for which objects or pointers are
3298 declared is not an anonymous union" [class.union]. */
3299 #define ANON_AGGR_TYPE_P(NODE) \
3300 (CLASS_TYPE_P (NODE) && LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr)
3301 #define SET_ANON_AGGR_TYPE_P(NODE) \
3302 (LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr = 1)
3304 /* Nonzero if TYPE is an anonymous union type. */
3305 #define ANON_UNION_TYPE_P(NODE) \
3306 (TREE_CODE (NODE) == UNION_TYPE && ANON_AGGR_TYPE_P (NODE))
3308 #define UNKNOWN_TYPE LANG_TYPE
3310 /* Define fields and accessors for nodes representing declared names. */
3312 #define TYPE_WAS_ANONYMOUS(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->was_anonymous)
3314 /* C++: all of these are overloaded! These apply only to TYPE_DECLs. */
3316 /* The format of each node in the DECL_FRIENDLIST is as follows:
3318 The TREE_PURPOSE will be the name of a function, i.e., an
3319 IDENTIFIER_NODE. The TREE_VALUE will be itself a TREE_LIST, whose
3320 TREE_VALUEs are friends with the given name. */
3321 #define DECL_FRIENDLIST(NODE) (DECL_INITIAL (NODE))
3322 #define FRIEND_NAME(LIST) (TREE_PURPOSE (LIST))
3323 #define FRIEND_DECLS(LIST) (TREE_VALUE (LIST))
3325 /* The DECL_ACCESS, if non-NULL, is a TREE_LIST. The TREE_PURPOSE of
3326 each node is a type; the TREE_VALUE is the access granted for this
3327 DECL in that type. The DECL_ACCESS is set by access declarations.
3328 For example, if a member that would normally be public in a
3329 derived class is made protected, then the derived class and the
3330 protected_access_node will appear in the DECL_ACCESS for the node. */
3331 #define DECL_ACCESS(NODE) (LANG_DECL_U2_CHECK (NODE, 0)->access)
3333 /* Nonzero if the FUNCTION_DECL is a global constructor. */
3334 #define DECL_GLOBAL_CTOR_P(NODE) \
3335 (LANG_DECL_FN_CHECK (NODE)->global_ctor_p)
3337 /* Nonzero if the FUNCTION_DECL is a global destructor. */
3338 #define DECL_GLOBAL_DTOR_P(NODE) \
3339 (LANG_DECL_FN_CHECK (NODE)->global_dtor_p)
3341 /* Accessor macros for C++ template decl nodes. */
3343 /* The DECL_TEMPLATE_PARMS are a list. The TREE_PURPOSE of each node
3344 is a INT_CST whose TREE_INT_CST_LOW indicates the level of the
3345 template parameters, with 1 being the outermost set of template
3346 parameters. The TREE_VALUE is a vector, whose elements are the
3347 template parameters at each level. Each element in the vector is a
3348 TREE_LIST, whose TREE_VALUE is a PARM_DECL (if the parameter is a
3349 non-type parameter), or a TYPE_DECL (if the parameter is a type
3350 parameter). The TREE_PURPOSE is the default value, if any. The
3351 TEMPLATE_PARM_INDEX for the parameter is available as the
3352 DECL_INITIAL (for a PARM_DECL) or as the TREE_TYPE (for a
3354 #define DECL_TEMPLATE_PARMS(NODE) DECL_NON_COMMON_CHECK (NODE)->decl_non_common.arguments
3355 #define DECL_INNERMOST_TEMPLATE_PARMS(NODE) \
3356 INNERMOST_TEMPLATE_PARMS (DECL_TEMPLATE_PARMS (NODE))
3357 #define DECL_NTPARMS(NODE) \
3358 TREE_VEC_LENGTH (DECL_INNERMOST_TEMPLATE_PARMS (NODE))
3359 /* For function, method, class-data templates. */
3360 #define DECL_TEMPLATE_RESULT(NODE) DECL_RESULT_FLD (NODE)
3361 /* For a function template at namespace scope, DECL_TEMPLATE_INSTANTIATIONS
3362 lists all instantiations and specializations of the function so that
3363 tsubst_friend_function can reassign them to another template if we find
3364 that the namespace-scope template is really a partial instantiation of a
3367 For a class template the DECL_TEMPLATE_INSTANTIATIONS lists holds
3368 all instantiations and specializations of the class type, including
3369 partial instantiations and partial specializations, so that if we
3370 explicitly specialize a partial instantiation we can walk the list
3371 in maybe_process_partial_specialization and reassign them or complain
3374 In both cases, the TREE_PURPOSE of each node contains the arguments
3375 used; the TREE_VALUE contains the generated variable. The template
3376 arguments are always complete. For example, given:
3378 template <class T> struct S1 {
3379 template <class U> struct S2 {};
3380 template <class U> struct S2<U*> {};
3383 the record for the partial specialization will contain, as its
3384 argument list, { {T}, {U*} }, and will be on the
3385 DECL_TEMPLATE_INSTANTIATIONS list for `template <class T> template
3386 <class U> struct S1<T>::S2'.
3388 This list is not used for other templates. */
3389 #define DECL_TEMPLATE_INSTANTIATIONS(NODE) DECL_VINDEX (NODE)
3390 /* For a class template, this list contains the partial
3391 specializations of this template. (Full specializations are not
3392 recorded on this list.) The TREE_PURPOSE holds the arguments used
3393 in the partial specialization (e.g., for `template <class T> struct
3394 S<T*, int>' this will be `T*'.) The arguments will also include
3395 any outer template arguments. The TREE_VALUE holds the innermost
3396 template parameters for the specialization (e.g., `T' in the
3397 example above.) The TREE_TYPE is the _TYPE node for the partial
3400 This list is not used for other templates. */
3401 #define DECL_TEMPLATE_SPECIALIZATIONS(NODE) DECL_SIZE (NODE)
3403 /* Nonzero for a DECL which is actually a template parameter. Keep
3404 these checks in ascending tree code order. */
3405 #define DECL_TEMPLATE_PARM_P(NODE) \
3406 (DECL_LANG_FLAG_0 (NODE) \
3407 && (TREE_CODE (NODE) == CONST_DECL \
3408 || TREE_CODE (NODE) == PARM_DECL \
3409 || TREE_CODE (NODE) == TYPE_DECL \
3410 || TREE_CODE (NODE) == TEMPLATE_DECL))
3412 /* Mark NODE as a template parameter. */
3413 #define SET_DECL_TEMPLATE_PARM_P(NODE) \
3414 (DECL_LANG_FLAG_0 (NODE) = 1)
3416 /* Nonzero if NODE is a template template parameter. */
3417 #define DECL_TEMPLATE_TEMPLATE_PARM_P(NODE) \
3418 (TREE_CODE (NODE) == TEMPLATE_DECL && DECL_TEMPLATE_PARM_P (NODE))
3420 /* Nonzero if NODE is a TEMPLATE_DECL representing an
3421 UNBOUND_CLASS_TEMPLATE tree node. */
3422 #define DECL_UNBOUND_CLASS_TEMPLATE_P(NODE) \
3423 (TREE_CODE (NODE) == TEMPLATE_DECL && !DECL_TEMPLATE_RESULT (NODE))
3425 #define DECL_FUNCTION_TEMPLATE_P(NODE) \
3426 (TREE_CODE (NODE) == TEMPLATE_DECL \
3427 && !DECL_UNBOUND_CLASS_TEMPLATE_P (NODE) \
3428 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == FUNCTION_DECL)
3430 /* Nonzero for a DECL that represents a template class. */
3431 #define DECL_CLASS_TEMPLATE_P(NODE) \
3432 (TREE_CODE (NODE) == TEMPLATE_DECL \
3433 && DECL_TEMPLATE_RESULT (NODE) != NULL_TREE \
3434 && DECL_IMPLICIT_TYPEDEF_P (DECL_TEMPLATE_RESULT (NODE)))
3436 /* Nonzero if NODE which declares a type. */
3437 #define DECL_DECLARES_TYPE_P(NODE) \
3438 (TREE_CODE (NODE) == TYPE_DECL || DECL_CLASS_TEMPLATE_P (NODE))
3440 /* Nonzero if NODE declares a function. */
3441 #define DECL_DECLARES_FUNCTION_P(NODE) \
3442 (TREE_CODE (NODE) == FUNCTION_DECL || DECL_FUNCTION_TEMPLATE_P (NODE))
3444 /* Nonzero if NODE is the typedef implicitly generated for a type when
3445 the type is declared. In C++, `struct S {};' is roughly
3446 equivalent to `struct S {}; typedef struct S S;' in C.
3447 DECL_IMPLICIT_TYPEDEF_P will hold for the typedef indicated in this
3448 example. In C++, there is a second implicit typedef for each
3449 class, in the scope of `S' itself, so that you can say `S::S'.
3450 DECL_SELF_REFERENCE_P will hold for that second typedef. */
3451 #define DECL_IMPLICIT_TYPEDEF_P(NODE) \
3452 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_2 (NODE))
3453 #define SET_DECL_IMPLICIT_TYPEDEF_P(NODE) \
3454 (DECL_LANG_FLAG_2 (NODE) = 1)
3455 #define DECL_SELF_REFERENCE_P(NODE) \
3456 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_4 (NODE))
3457 #define SET_DECL_SELF_REFERENCE_P(NODE) \
3458 (DECL_LANG_FLAG_4 (NODE) = 1)
3460 /* A `primary' template is one that has its own template header. A
3461 member function of a class template is a template, but not primary.
3462 A member template is primary. Friend templates are primary, too. */
3464 /* Returns the primary template corresponding to these parameters. */
3465 #define DECL_PRIMARY_TEMPLATE(NODE) \
3466 (TREE_TYPE (DECL_INNERMOST_TEMPLATE_PARMS (NODE)))
3468 /* Returns nonzero if NODE is a primary template. */
3469 #define PRIMARY_TEMPLATE_P(NODE) (DECL_PRIMARY_TEMPLATE (NODE) == (NODE))
3471 /* Nonzero iff NODE is a specialization of a template. The value
3472 indicates the type of specializations:
3474 1=implicit instantiation
3476 2=partial or explicit specialization, e.g.:
3478 template <> int min<int> (int, int),
3480 3=explicit instantiation, e.g.:
3482 template int min<int> (int, int);
3484 Note that NODE will be marked as a specialization even if the
3485 template it is instantiating is not a primary template. For
3488 template <typename T> struct O {
3493 both O<int>::f and O<int>::I will be marked as instantiations.
3495 If DECL_USE_TEMPLATE is nonzero, then DECL_TEMPLATE_INFO will also
3497 #define DECL_USE_TEMPLATE(NODE) (DECL_LANG_SPECIFIC (NODE)->u.base.use_template)
3499 /* Like DECL_USE_TEMPLATE, but for class types. */
3500 #define CLASSTYPE_USE_TEMPLATE(NODE) \
3501 (LANG_TYPE_CLASS_CHECK (NODE)->use_template)
3503 /* True if NODE is a specialization of a primary template. */
3504 #define CLASSTYPE_SPECIALIZATION_OF_PRIMARY_TEMPLATE_P(NODE) \
3505 (CLASS_TYPE_P (NODE) \
3506 && CLASSTYPE_USE_TEMPLATE (NODE) \
3507 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE)))
3509 #define DECL_TEMPLATE_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) & 1)
3510 #define CLASSTYPE_TEMPLATE_INSTANTIATION(NODE) \
3511 (CLASSTYPE_USE_TEMPLATE (NODE) & 1)
3513 #define DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) == 2)
3514 #define SET_DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) = 2)
3516 /* Returns true for an explicit or partial specialization of a class
3518 #define CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
3519 (CLASSTYPE_USE_TEMPLATE (NODE) == 2)
3520 #define SET_CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
3521 (CLASSTYPE_USE_TEMPLATE (NODE) = 2)
3523 #define DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 1)
3524 #define SET_DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 1)
3525 #define CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
3526 (CLASSTYPE_USE_TEMPLATE (NODE) == 1)
3527 #define SET_CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
3528 (CLASSTYPE_USE_TEMPLATE (NODE) = 1)
3530 #define DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 3)
3531 #define SET_DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 3)
3532 #define CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
3533 (CLASSTYPE_USE_TEMPLATE (NODE) == 3)
3534 #define SET_CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
3535 (CLASSTYPE_USE_TEMPLATE (NODE) = 3)
3537 /* Nonzero if DECL is a friend function which is an instantiation
3538 from the point of view of the compiler, but not from the point of
3539 view of the language. For example given:
3540 template <class T> struct S { friend void f(T) {}; };
3541 the declaration of `void f(int)' generated when S<int> is
3542 instantiated will not be a DECL_TEMPLATE_INSTANTIATION, but will be
3543 a DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION. */
3544 #define DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION(DECL) \
3545 (DECL_TEMPLATE_INFO (DECL) && !DECL_USE_TEMPLATE (DECL))
3547 /* Nonzero iff we are currently processing a declaration for an
3548 entity with its own template parameter list, and which is not a
3549 full specialization. */
3550 #define PROCESSING_REAL_TEMPLATE_DECL_P() \
3551 (processing_template_decl > template_class_depth (current_scope ()))
3553 /* Nonzero if this VAR_DECL or FUNCTION_DECL has already been
3554 instantiated, i.e. its definition has been generated from the
3555 pattern given in the template. */
3556 #define DECL_TEMPLATE_INSTANTIATED(NODE) \
3557 DECL_LANG_FLAG_1 (VAR_OR_FUNCTION_DECL_CHECK (NODE))
3559 /* We know what we're doing with this decl now. */
3560 #define DECL_INTERFACE_KNOWN(NODE) DECL_LANG_FLAG_5 (NODE)
3562 /* DECL_EXTERNAL must be set on a decl until the decl is actually emitted,
3563 so that assemble_external will work properly. So we have this flag to
3564 tell us whether the decl is really not external.
3566 This flag does not indicate whether or not the decl is defined in the
3567 current translation unit; it indicates whether or not we should emit the
3568 decl at the end of compilation if it is defined and needed. */
3569 #define DECL_NOT_REALLY_EXTERN(NODE) \
3570 (DECL_LANG_SPECIFIC (NODE)->u.base.not_really_extern)
3572 #define DECL_REALLY_EXTERN(NODE) \
3573 (DECL_EXTERNAL (NODE) && ! DECL_NOT_REALLY_EXTERN (NODE))
3575 /* A thunk is a stub function.
3577 A thunk is an alternate entry point for an ordinary FUNCTION_DECL.
3578 The address of the ordinary FUNCTION_DECL is given by the
3579 DECL_INITIAL, which is always an ADDR_EXPR whose operand is a
3580 FUNCTION_DECL. The job of the thunk is to either adjust the this
3581 pointer before transferring control to the FUNCTION_DECL, or call
3582 FUNCTION_DECL and then adjust the result value. Note, the result
3583 pointer adjusting thunk must perform a call to the thunked
3584 function, (or be implemented via passing some invisible parameter
3585 to the thunked function, which is modified to perform the
3586 adjustment just before returning).
3588 A thunk may perform either, or both, of the following operations:
3590 o Adjust the this or result pointer by a constant offset.
3591 o Adjust the this or result pointer by looking up a vcall or vbase offset
3594 A this pointer adjusting thunk converts from a base to a derived
3595 class, and hence adds the offsets. A result pointer adjusting thunk
3596 converts from a derived class to a base, and hence subtracts the
3597 offsets. If both operations are performed, then the constant
3598 adjustment is performed first for this pointer adjustment and last
3599 for the result pointer adjustment.
3601 The constant adjustment is given by THUNK_FIXED_OFFSET. If the
3602 vcall or vbase offset is required, THUNK_VIRTUAL_OFFSET is
3603 used. For this pointer adjusting thunks, it is the vcall offset
3604 into the vtable. For result pointer adjusting thunks it is the
3605 binfo of the virtual base to convert to. Use that binfo's vbase
3608 It is possible to have equivalent covariant thunks. These are
3609 distinct virtual covariant thunks whose vbase offsets happen to
3610 have the same value. THUNK_ALIAS is used to pick one as the
3611 canonical thunk, which will get all the this pointer adjusting
3612 thunks attached to it. */
3614 /* An integer indicating how many bytes should be subtracted from the
3615 this or result pointer when this function is called. */
3616 #define THUNK_FIXED_OFFSET(DECL) \
3617 (DECL_LANG_SPECIFIC (THUNK_FUNCTION_CHECK (DECL))->u.fn.u5.fixed_offset)
3619 /* A tree indicating how to perform the virtual adjustment. For a this
3620 adjusting thunk it is the number of bytes to be added to the vtable
3621 to find the vcall offset. For a result adjusting thunk, it is the
3622 binfo of the relevant virtual base. If NULL, then there is no
3623 virtual adjust. (The vptr is always located at offset zero from
3624 the this or result pointer.) (If the covariant type is within the
3625 class hierarchy being laid out, the vbase index is not yet known
3626 at the point we need to create the thunks, hence the need to use
3629 #define THUNK_VIRTUAL_OFFSET(DECL) \
3630 (LANG_DECL_U2_CHECK (FUNCTION_DECL_CHECK (DECL), 0)->access)
3632 /* A thunk which is equivalent to another thunk. */
3633 #define THUNK_ALIAS(DECL) \
3634 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->u.min.template_info)
3636 /* For thunk NODE, this is the FUNCTION_DECL thunked to. It is
3637 possible for the target to be a thunk too. */
3638 #define THUNK_TARGET(NODE) \
3639 (LANG_DECL_FN_CHECK (NODE)->befriending_classes)
3641 /* True for a SCOPE_REF iff the "template" keyword was used to
3642 indicate that the qualified name denotes a template. */
3643 #define QUALIFIED_NAME_IS_TEMPLATE(NODE) \
3644 (TREE_LANG_FLAG_0 (SCOPE_REF_CHECK (NODE)))
3646 /* True for an OMP_ATOMIC that has dependent parameters. These are stored
3647 as an expr in operand 1, and integer_zero_node in operand 0. */
3648 #define OMP_ATOMIC_DEPENDENT_P(NODE) \
3649 (TREE_CODE (TREE_OPERAND (OMP_ATOMIC_CHECK (NODE), 0)) == INTEGER_CST)
3651 /* Used while gimplifying continue statements bound to OMP_FOR nodes. */
3652 #define OMP_FOR_GIMPLIFYING_P(NODE) \
3653 (TREE_LANG_FLAG_0 (OMP_FOR_CHECK (NODE)))
3655 /* A language-specific token attached to the OpenMP data clauses to
3656 hold code (or code fragments) related to ctors, dtors, and op=.
3657 See semantics.c for details. */
3658 #define CP_OMP_CLAUSE_INFO(NODE) \
3659 TREE_TYPE (OMP_CLAUSE_RANGE_CHECK (NODE, OMP_CLAUSE_PRIVATE, \
3660 OMP_CLAUSE_COPYPRIVATE))
3662 /* These macros provide convenient access to the various _STMT nodes
3663 created when parsing template declarations. */
3664 #define TRY_STMTS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 0)
3665 #define TRY_HANDLERS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 1)
3667 #define EH_SPEC_STMTS(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 0)
3668 #define EH_SPEC_RAISES(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 1)
3670 #define USING_STMT_NAMESPACE(NODE) TREE_OPERAND (USING_STMT_CHECK (NODE), 0)
3672 /* Nonzero if this try block is a function try block. */
3673 #define FN_TRY_BLOCK_P(NODE) TREE_LANG_FLAG_3 (TRY_BLOCK_CHECK (NODE))
3674 #define HANDLER_PARMS(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 0)
3675 #define HANDLER_BODY(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 1)
3676 #define HANDLER_TYPE(NODE) TREE_TYPE (HANDLER_CHECK (NODE))
3678 /* CLEANUP_STMT accessors. The statement(s) covered, the cleanup to run
3679 and the VAR_DECL for which this cleanup exists. */
3680 #define CLEANUP_BODY(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 0)
3681 #define CLEANUP_EXPR(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 1)
3682 #define CLEANUP_DECL(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 2)
3684 /* IF_STMT accessors. These give access to the condition of the if
3685 statement, the then block of the if statement, and the else block
3686 of the if statement if it exists. */
3687 #define IF_COND(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 0)
3688 #define THEN_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 1)
3689 #define ELSE_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 2)
3691 /* WHILE_STMT accessors. These give access to the condition of the
3692 while statement and the body of the while statement, respectively. */
3693 #define WHILE_COND(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 0)
3694 #define WHILE_BODY(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 1)
3696 /* DO_STMT accessors. These give access to the condition of the do
3697 statement and the body of the do statement, respectively. */
3698 #define DO_COND(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 0)
3699 #define DO_BODY(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 1)
3701 /* FOR_STMT accessors. These give access to the init statement,
3702 condition, update expression, and body of the for statement,
3704 #define FOR_INIT_STMT(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 0)
3705 #define FOR_COND(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 1)
3706 #define FOR_EXPR(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 2)
3707 #define FOR_BODY(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 3)
3709 #define SWITCH_STMT_COND(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 0)
3710 #define SWITCH_STMT_BODY(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 1)
3711 #define SWITCH_STMT_TYPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 2)
3713 /* STMT_EXPR accessor. */
3714 #define STMT_EXPR_STMT(NODE) TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0)
3716 /* EXPR_STMT accessor. This gives the expression associated with an
3717 expression statement. */
3718 #define EXPR_STMT_EXPR(NODE) TREE_OPERAND (EXPR_STMT_CHECK (NODE), 0)
3720 /* True if this TARGET_EXPR was created by build_cplus_new, and so we can
3721 discard it if it isn't useful. */
3722 #define TARGET_EXPR_IMPLICIT_P(NODE) \
3723 TREE_LANG_FLAG_0 (TARGET_EXPR_CHECK (NODE))
3725 /* True if this TARGET_EXPR is the result of list-initialization of a
3727 #define TARGET_EXPR_LIST_INIT_P(NODE) \
3728 TREE_LANG_FLAG_1 (TARGET_EXPR_CHECK (NODE))
3730 /* True if this TARGET_EXPR expresses direct-initialization of an object
3731 to be named later. */
3732 #define TARGET_EXPR_DIRECT_INIT_P(NODE) \
3733 TREE_LANG_FLAG_2 (TARGET_EXPR_CHECK (NODE))
3735 /* True if EXPR expresses direct-initialization of a TYPE. */
3736 #define DIRECT_INIT_EXPR_P(TYPE,EXPR) \
3737 (TREE_CODE (EXPR) == TARGET_EXPR && TREE_LANG_FLAG_2 (EXPR) \
3738 && same_type_ignoring_top_level_qualifiers_p (TYPE, TREE_TYPE (EXPR)))
3740 /* An enumeration of the kind of tags that C++ accepts. */
3742 none_type = 0, /* Not a tag type. */
3743 record_type, /* "struct" types. */
3744 class_type, /* "class" types. */
3745 union_type, /* "union" types. */
3746 enum_type, /* "enum" types. */
3747 typename_type /* "typename" types. */
3750 /* The various kinds of lvalues we distinguish. */
3751 enum cp_lvalue_kind_flags {
3752 clk_none = 0, /* Things that are not an lvalue. */
3753 clk_ordinary = 1, /* An ordinary lvalue. */
3754 clk_rvalueref = 2,/* An rvalue formed using an rvalue reference */
3755 clk_class = 4, /* An rvalue of class-type. */
3756 clk_bitfield = 8, /* An lvalue for a bit-field. */
3757 clk_packed = 16 /* An lvalue for a packed field. */
3760 /* This type is used for parameters and variables which hold
3761 combinations of the flags in enum cp_lvalue_kind_flags. */
3762 typedef int cp_lvalue_kind;
3764 /* Various kinds of template specialization, instantiation, etc. */
3765 typedef enum tmpl_spec_kind {
3766 tsk_none, /* Not a template at all. */
3767 tsk_invalid_member_spec, /* An explicit member template
3768 specialization, but the enclosing
3769 classes have not all been explicitly
3771 tsk_invalid_expl_inst, /* An explicit instantiation containing
3772 template parameter lists. */
3773 tsk_excessive_parms, /* A template declaration with too many
3774 template parameter lists. */
3775 tsk_insufficient_parms, /* A template declaration with too few
3777 tsk_template, /* A template declaration. */
3778 tsk_expl_spec, /* An explicit specialization. */
3779 tsk_expl_inst /* An explicit instantiation. */
3782 /* The various kinds of access. BINFO_ACCESS depends on these being
3783 two bit quantities. The numerical values are important; they are
3784 used to initialize RTTI data structures, so changing them changes
3786 typedef enum access_kind {
3787 ak_none = 0, /* Inaccessible. */
3788 ak_public = 1, /* Accessible, as a `public' thing. */
3789 ak_protected = 2, /* Accessible, as a `protected' thing. */
3790 ak_private = 3 /* Accessible, as a `private' thing. */
3793 /* The various kinds of special functions. If you add to this list,
3794 you should update special_function_p as well. */
3795 typedef enum special_function_kind {
3796 sfk_none = 0, /* Not a special function. This enumeral
3797 must have value zero; see
3798 special_function_p. */
3799 sfk_constructor, /* A constructor. */
3800 sfk_copy_constructor, /* A copy constructor. */
3801 sfk_move_constructor, /* A move constructor. */
3802 sfk_assignment_operator, /* An assignment operator. */
3803 sfk_destructor, /* A destructor. */
3804 sfk_complete_destructor, /* A destructor for complete objects. */
3805 sfk_base_destructor, /* A destructor for base subobjects. */
3806 sfk_deleting_destructor, /* A destructor for complete objects that
3807 deletes the object after it has been
3809 sfk_conversion /* A conversion operator. */
3810 } special_function_kind;
3812 /* The various kinds of linkage. From [basic.link],
3814 A name is said to have linkage when it might denote the same
3815 object, reference, function, type, template, namespace or value
3816 as a name introduced in another scope:
3818 -- When a name has external linkage, the entity it denotes can
3819 be referred to from scopes of other translation units or from
3820 other scopes of the same translation unit.
3822 -- When a name has internal linkage, the entity it denotes can
3823 be referred to by names from other scopes in the same
3826 -- When a name has no linkage, the entity it denotes cannot be
3827 referred to by names from other scopes. */
3829 typedef enum linkage_kind {
3830 lk_none, /* No linkage. */
3831 lk_internal, /* Internal linkage. */
3832 lk_external /* External linkage. */
3835 /* Bitmask flags to control type substitution. */
3837 tf_none = 0, /* nothing special */
3838 tf_error = 1 << 0, /* give error messages */
3839 tf_warning = 1 << 1, /* give warnings too */
3840 tf_ignore_bad_quals = 1 << 2, /* ignore bad cvr qualifiers */
3841 tf_keep_type_decl = 1 << 3, /* retain typedef type decls
3842 (make_typename_type use) */
3843 tf_ptrmem_ok = 1 << 4, /* pointers to member ok (internal
3844 instantiate_type use) */
3845 tf_user = 1 << 5, /* found template must be a user template
3846 (lookup_template_class use) */
3847 tf_conv = 1 << 6, /* We are determining what kind of
3848 conversion might be permissible,
3849 not actually performing the
3851 tf_no_access_control = 1 << 7, /* Do not perform access checks, even
3852 when issuing other errors. */
3853 /* Do not instantiate classes (used by count_non_default_template_args). */
3854 tf_no_class_instantiations = 1 << 8,
3855 /* Convenient substitution flags combinations. */
3856 tf_warning_or_error = tf_warning | tf_error
3859 /* This type is used for parameters and variables which hold
3860 combinations of the flags in enum tsubst_flags. */
3861 typedef int tsubst_flags_t;
3863 /* The kind of checking we can do looking in a class hierarchy. */
3864 enum base_access_flags {
3865 ba_any = 0, /* Do not check access, allow an ambiguous base,
3866 prefer a non-virtual base */
3867 ba_unique = 1 << 0, /* Must be a unique base. */
3868 ba_check_bit = 1 << 1, /* Check access. */
3869 ba_check = ba_unique | ba_check_bit,
3870 ba_ignore_scope = 1 << 2, /* Ignore access allowed by local scope. */
3871 ba_quiet = 1 << 3 /* Do not issue error messages. */
3874 /* This type is used for parameters and variables which hold
3875 combinations of the flags in enum base_access_flags. */
3876 typedef int base_access;
3878 /* The various kinds of access check during parsing. */
3879 typedef enum deferring_kind {
3880 dk_no_deferred = 0, /* Check access immediately */
3881 dk_deferred = 1, /* Deferred check */
3882 dk_no_check = 2 /* No access check */
3885 /* The kind of base we can find, looking in a class hierarchy.
3886 Values <0 indicate we failed. */
3887 typedef enum base_kind {
3888 bk_inaccessible = -3, /* The base is inaccessible */
3889 bk_ambig = -2, /* The base is ambiguous */
3890 bk_not_base = -1, /* It is not a base */
3891 bk_same_type = 0, /* It is the same type */
3892 bk_proper_base = 1, /* It is a proper base */
3893 bk_via_virtual = 2 /* It is a proper base, but via a virtual
3894 path. This might not be the canonical
3898 /* Node for "pointer to (virtual) function".
3899 This may be distinct from ptr_type_node so gdb can distinguish them. */
3900 #define vfunc_ptr_type_node vtable_entry_type
3903 /* For building calls to `delete'. */
3904 extern GTY(()) tree integer_two_node;
3905 extern GTY(()) tree integer_three_node;
3907 /* The number of function bodies which we are currently processing.
3908 (Zero if we are at namespace scope, one inside the body of a
3909 function, two inside the body of a function in a local class, etc.) */
3910 extern int function_depth;
3914 /* Nonzero if we are parsing an unevaluated operand: an operand to
3915 sizeof, typeof, or alignof. This is a count since operands to
3916 sizeof can be nested. */
3918 extern int cp_unevaluated_operand;
3922 /* These values are used for the `STRICT' parameter to type_unification and
3923 fn_type_unification. Their meanings are described with the
3924 documentation for fn_type_unification. */
3926 typedef enum unification_kind_t {
3930 } unification_kind_t;
3934 extern int current_class_depth;
3936 /* An array of all local classes present in this translation unit, in
3937 declaration order. */
3938 extern GTY(()) VEC(tree,gc) *local_classes;
3940 /* Here's where we control how name mangling takes place. */
3942 /* Cannot use '$' up front, because this confuses gdb
3943 (names beginning with '$' are gdb-local identifiers).
3945 Note that all forms in which the '$' is significant are long enough
3946 for direct indexing (meaning that if we know there is a '$'
3947 at a particular location, we can index into the string at
3948 any other location that provides distinguishing characters). */
3950 /* Define NO_DOT_IN_LABEL in your favorite tm file if your assembler
3951 doesn't allow '.' in symbol names. */
3952 #ifndef NO_DOT_IN_LABEL
3956 #define AUTO_TEMP_NAME "_.tmp_"
3957 #define VFIELD_BASE ".vf"
3958 #define VFIELD_NAME "_vptr."
3959 #define VFIELD_NAME_FORMAT "_vptr.%s"
3961 #define ANON_AGGRNAME_FORMAT "._%d"
3963 #else /* NO_DOT_IN_LABEL */
3965 #ifndef NO_DOLLAR_IN_LABEL
3969 #define AUTO_TEMP_NAME "_$tmp_"
3970 #define VFIELD_BASE "$vf"
3971 #define VFIELD_NAME "_vptr$"
3972 #define VFIELD_NAME_FORMAT "_vptr$%s"
3973 #define ANON_AGGRNAME_FORMAT "$_%d"
3975 #else /* NO_DOLLAR_IN_LABEL */
3977 #define IN_CHARGE_NAME "__in_chrg"
3978 #define AUTO_TEMP_NAME "__tmp_"
3979 #define TEMP_NAME_P(ID_NODE) \
3980 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, \
3981 sizeof (AUTO_TEMP_NAME) - 1))
3982 #define VTABLE_NAME "__vt_"
3983 #define VTABLE_NAME_P(ID_NODE) \
3984 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VTABLE_NAME, \
3985 sizeof (VTABLE_NAME) - 1))
3986 #define VFIELD_BASE "__vfb"
3987 #define VFIELD_NAME "__vptr_"
3988 #define VFIELD_NAME_P(ID_NODE) \
3989 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, \
3990 sizeof (VFIELD_NAME) - 1))
3991 #define VFIELD_NAME_FORMAT "__vptr_%s"
3993 #define ANON_AGGRNAME_PREFIX "__anon_"
3994 #define ANON_AGGRNAME_P(ID_NODE) \
3995 (!strncmp (IDENTIFIER_POINTER (ID_NODE), ANON_AGGRNAME_PREFIX, \
3996 sizeof (ANON_AGGRNAME_PREFIX) - 1))
3997 #define ANON_AGGRNAME_FORMAT "__anon_%d"
3999 #endif /* NO_DOLLAR_IN_LABEL */
4000 #endif /* NO_DOT_IN_LABEL */
4002 #define THIS_NAME "this"
4004 #define IN_CHARGE_NAME "__in_chrg"
4006 #define VTBL_PTR_TYPE "__vtbl_ptr_type"
4007 #define VTABLE_DELTA_NAME "__delta"
4008 #define VTABLE_PFN_NAME "__pfn"
4010 #define LAMBDANAME_PREFIX "__lambda"
4011 #define LAMBDANAME_FORMAT LAMBDANAME_PREFIX "%d"
4012 #define LAMBDANAME_P(ID_NODE) \
4013 (!strncmp (IDENTIFIER_POINTER (ID_NODE), \
4014 LAMBDANAME_PREFIX, \
4015 sizeof (LAMBDANAME_PREFIX) - 1))
4017 #if !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL)
4019 #define VTABLE_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == 'v' \
4020 && IDENTIFIER_POINTER (ID_NODE)[2] == 't' \
4021 && IDENTIFIER_POINTER (ID_NODE)[3] == JOINER)
4023 #define TEMP_NAME_P(ID_NODE) \
4024 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, sizeof (AUTO_TEMP_NAME)-1))
4025 #define VFIELD_NAME_P(ID_NODE) \
4026 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, sizeof(VFIELD_NAME)-1))
4028 /* For anonymous aggregate types, we need some sort of name to
4029 hold on to. In practice, this should not appear, but it should
4030 not be harmful if it does. */
4031 #define ANON_AGGRNAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[0] == JOINER \
4032 && IDENTIFIER_POINTER (ID_NODE)[1] == '_')
4033 #endif /* !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) */
4036 /* Nonzero if we're done parsing and into end-of-file activities. */
4040 /* A list of namespace-scope objects which have constructors or
4041 destructors which reside in the global scope. The decl is stored
4042 in the TREE_VALUE slot and the initializer is stored in the
4043 TREE_PURPOSE slot. */
4044 extern GTY(()) tree static_aggregates;
4046 enum overload_flags { NO_SPECIAL = 0, DTOR_FLAG, TYPENAME_FLAG };
4048 /* These are uses as bits in flags passed to various functions to
4049 control their behavior. Despite the LOOKUP_ prefix, many of these
4050 do not control name lookup. ??? Functions using these flags should
4051 probably be modified to accept explicit boolean flags for the
4052 behaviors relevant to them. */
4053 /* Check for access violations. */
4054 #define LOOKUP_PROTECT (1 << 0)
4055 /* Complain if no suitable member function matching the arguments is
4057 #define LOOKUP_COMPLAIN (1 << 1)
4058 #define LOOKUP_NORMAL (LOOKUP_PROTECT | LOOKUP_COMPLAIN)
4059 /* Even if the function found by lookup is a virtual function, it
4060 should be called directly. */
4061 #define LOOKUP_NONVIRTUAL (1 << 2)
4062 /* Non-converting (i.e., "explicit") constructors are not tried. This flag
4063 indicates that we are not performing direct-initialization. */
4064 #define LOOKUP_ONLYCONVERTING (1 << 3)
4065 #define LOOKUP_IMPLICIT (LOOKUP_NORMAL | LOOKUP_ONLYCONVERTING)
4066 /* If a temporary is created, it should be created so that it lives
4067 as long as the current variable bindings; otherwise it only lives
4068 until the end of the complete-expression. It also forces
4069 direct-initialization in cases where other parts of the compiler
4070 have already generated a temporary, such as reference
4071 initialization and the catch parameter. */
4072 #define DIRECT_BIND (1 << 4)
4073 /* User-defined conversions are not permitted. (Built-in conversions
4075 #define LOOKUP_NO_CONVERSION (1 << 5)
4076 /* The user has explicitly called a destructor. (Therefore, we do
4077 not need to check that the object is non-NULL before calling the
4079 #define LOOKUP_DESTRUCTOR (1 << 6)
4080 /* Do not permit references to bind to temporaries. */
4081 #define LOOKUP_NO_TEMP_BIND (1 << 7)
4082 /* Do not accept objects, and possibly namespaces. */
4083 #define LOOKUP_PREFER_TYPES (1 << 8)
4084 /* Do not accept objects, and possibly types. */
4085 #define LOOKUP_PREFER_NAMESPACES (1 << 9)
4086 /* Accept types or namespaces. */
4087 #define LOOKUP_PREFER_BOTH (LOOKUP_PREFER_TYPES | LOOKUP_PREFER_NAMESPACES)
4088 /* Return friend declarations and un-declared builtin functions.
4089 (Normally, these entities are registered in the symbol table, but
4090 not found by lookup.) */
4091 #define LOOKUP_HIDDEN (LOOKUP_PREFER_NAMESPACES << 1)
4092 /* Prefer that the lvalue be treated as an rvalue. */
4093 #define LOOKUP_PREFER_RVALUE (LOOKUP_HIDDEN << 1)
4094 /* We're inside an init-list, so narrowing conversions are ill-formed. */
4095 #define LOOKUP_NO_NARROWING (LOOKUP_PREFER_RVALUE << 1)
4096 /* Avoid user-defined conversions for the first parameter of a copy
4098 #define LOOKUP_NO_COPY_CTOR_CONVERSION (LOOKUP_NO_NARROWING << 1)
4099 /* This is the first parameter of a copy constructor. */
4100 #define LOOKUP_COPY_PARM (LOOKUP_NO_COPY_CTOR_CONVERSION << 1)
4102 #define LOOKUP_NAMESPACES_ONLY(F) \
4103 (((F) & LOOKUP_PREFER_NAMESPACES) && !((F) & LOOKUP_PREFER_TYPES))
4104 #define LOOKUP_TYPES_ONLY(F) \
4105 (!((F) & LOOKUP_PREFER_NAMESPACES) && ((F) & LOOKUP_PREFER_TYPES))
4106 #define LOOKUP_QUALIFIERS_ONLY(F) ((F) & LOOKUP_PREFER_BOTH)
4109 /* These flags are used by the conversion code.
4110 CONV_IMPLICIT : Perform implicit conversions (standard and user-defined).
4111 CONV_STATIC : Perform the explicit conversions for static_cast.
4112 CONV_CONST : Perform the explicit conversions for const_cast.
4113 CONV_REINTERPRET: Perform the explicit conversions for reinterpret_cast.
4114 CONV_PRIVATE : Perform upcasts to private bases.
4115 CONV_FORCE_TEMP : Require a new temporary when converting to the same
4118 #define CONV_IMPLICIT 1
4119 #define CONV_STATIC 2
4120 #define CONV_CONST 4
4121 #define CONV_REINTERPRET 8
4122 #define CONV_PRIVATE 16
4123 /* #define CONV_NONCONVERTING 32 */
4124 #define CONV_FORCE_TEMP 64
4125 #define CONV_OLD_CONVERT (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
4127 #define CONV_C_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
4128 | CONV_REINTERPRET | CONV_PRIVATE | CONV_FORCE_TEMP)
4130 /* Used by build_expr_type_conversion to indicate which types are
4131 acceptable as arguments to the expression under consideration. */
4133 #define WANT_INT 1 /* integer types, including bool */
4134 #define WANT_FLOAT 2 /* floating point types */
4135 #define WANT_ENUM 4 /* enumerated types */
4136 #define WANT_POINTER 8 /* pointer types */
4137 #define WANT_NULL 16 /* null pointer constant */
4138 #define WANT_VECTOR 32 /* vector types */
4139 #define WANT_ARITH (WANT_INT | WANT_FLOAT | WANT_VECTOR)
4141 /* Used with comptypes, and related functions, to guide type
4144 #define COMPARE_STRICT 0 /* Just check if the types are the
4146 #define COMPARE_BASE 1 /* Check to see if the second type is
4147 derived from the first. */
4148 #define COMPARE_DERIVED 2 /* Like COMPARE_BASE, but in
4150 #define COMPARE_REDECLARATION 4 /* The comparison is being done when
4151 another declaration of an existing
4153 #define COMPARE_STRUCTURAL 8 /* The comparison is intended to be
4154 structural. The actual comparison
4155 will be identical to
4158 /* Used with push_overloaded_decl. */
4159 #define PUSH_GLOBAL 0 /* Push the DECL into namespace scope,
4160 regardless of the current scope. */
4161 #define PUSH_LOCAL 1 /* Push the DECL into the current
4163 #define PUSH_USING 2 /* We are pushing this DECL as the
4164 result of a using declaration. */
4166 /* Used with start function. */
4167 #define SF_DEFAULT 0 /* No flags. */
4168 #define SF_PRE_PARSED 1 /* The function declaration has
4169 already been parsed. */
4170 #define SF_INCLASS_INLINE 2 /* The function is an inline, defined
4171 in the class body. */
4173 /* Used with start_decl's initialized parameter. */
4174 #define SD_UNINITIALIZED 0
4175 #define SD_INITIALIZED 1
4176 #define SD_DEFAULTED 2
4177 #define SD_DELETED 3
4179 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, or if TYPE2
4180 is derived from TYPE1, or if TYPE2 is a pointer (reference) to a
4181 class derived from the type pointed to (referred to) by TYPE1. */
4182 #define same_or_base_type_p(TYPE1, TYPE2) \
4183 comptypes ((TYPE1), (TYPE2), COMPARE_BASE)
4185 /* These macros are used to access a TEMPLATE_PARM_INDEX. */
4186 #define TEMPLATE_PARM_INDEX_CAST(NODE) \
4187 ((template_parm_index*)TEMPLATE_PARM_INDEX_CHECK (NODE))
4188 #define TEMPLATE_PARM_IDX(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->index)
4189 #define TEMPLATE_PARM_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->level)
4190 #define TEMPLATE_PARM_DESCENDANTS(NODE) (TREE_CHAIN (NODE))
4191 #define TEMPLATE_PARM_ORIG_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->orig_level)
4192 #define TEMPLATE_PARM_DECL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->decl)
4193 #define TEMPLATE_PARM_PARAMETER_PACK(NODE) \
4194 (TREE_LANG_FLAG_0 (TEMPLATE_PARM_INDEX_CHECK (NODE)))
4196 /* These macros are for accessing the fields of TEMPLATE_TYPE_PARM,
4197 TEMPLATE_TEMPLATE_PARM and BOUND_TEMPLATE_TEMPLATE_PARM nodes. */
4198 #define TEMPLATE_TYPE_PARM_INDEX(NODE) \
4199 (TREE_CHECK3 ((NODE), TEMPLATE_TYPE_PARM, TEMPLATE_TEMPLATE_PARM, \
4200 BOUND_TEMPLATE_TEMPLATE_PARM))->type.values
4201 #define TEMPLATE_TYPE_IDX(NODE) \
4202 (TEMPLATE_PARM_IDX (TEMPLATE_TYPE_PARM_INDEX (NODE)))
4203 #define TEMPLATE_TYPE_LEVEL(NODE) \
4204 (TEMPLATE_PARM_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
4205 #define TEMPLATE_TYPE_ORIG_LEVEL(NODE) \
4206 (TEMPLATE_PARM_ORIG_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
4207 #define TEMPLATE_TYPE_DECL(NODE) \
4208 (TEMPLATE_PARM_DECL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
4209 #define TEMPLATE_TYPE_PARAMETER_PACK(NODE) \
4210 (TEMPLATE_PARM_PARAMETER_PACK (TEMPLATE_TYPE_PARM_INDEX (NODE)))
4212 /* These constants can used as bit flags in the process of tree formatting.
4214 TFF_PLAIN_IDENTIFIER: unqualified part of a name.
4215 TFF_SCOPE: include the class and namespace scope of the name.
4216 TFF_CHASE_TYPEDEF: print the original type-id instead of the typedef-name.
4217 TFF_DECL_SPECIFIERS: print decl-specifiers.
4218 TFF_CLASS_KEY_OR_ENUM: precede a class-type name (resp. enum name) with
4219 a class-key (resp. `enum').
4220 TFF_RETURN_TYPE: include function return type.
4221 TFF_FUNCTION_DEFAULT_ARGUMENTS: include function default parameter values.
4222 TFF_EXCEPTION_SPECIFICATION: show function exception specification.
4223 TFF_TEMPLATE_HEADER: show the template<...> header in a
4224 template-declaration.
4225 TFF_TEMPLATE_NAME: show only template-name.
4226 TFF_EXPR_IN_PARENS: parenthesize expressions.
4227 TFF_NO_FUNCTION_ARGUMENTS: don't show function arguments.
4228 TFF_UNQUALIFIED_NAME: do not print the qualifying scope of the
4230 TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS: do not omit template arguments
4231 identical to their defaults. */
4233 #define TFF_PLAIN_IDENTIFIER (0)
4234 #define TFF_SCOPE (1)
4235 #define TFF_CHASE_TYPEDEF (1 << 1)
4236 #define TFF_DECL_SPECIFIERS (1 << 2)
4237 #define TFF_CLASS_KEY_OR_ENUM (1 << 3)
4238 #define TFF_RETURN_TYPE (1 << 4)
4239 #define TFF_FUNCTION_DEFAULT_ARGUMENTS (1 << 5)
4240 #define TFF_EXCEPTION_SPECIFICATION (1 << 6)
4241 #define TFF_TEMPLATE_HEADER (1 << 7)
4242 #define TFF_TEMPLATE_NAME (1 << 8)
4243 #define TFF_EXPR_IN_PARENS (1 << 9)
4244 #define TFF_NO_FUNCTION_ARGUMENTS (1 << 10)
4245 #define TFF_UNQUALIFIED_NAME (1 << 11)
4246 #define TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS (1 << 12)
4248 /* Returns the TEMPLATE_DECL associated to a TEMPLATE_TEMPLATE_PARM
4250 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_DECL(NODE) \
4251 ((TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM) \
4252 ? TYPE_TI_TEMPLATE (NODE) \
4257 extern void init_reswords (void);
4259 typedef struct GTY(()) operator_name_info_t {
4260 /* The IDENTIFIER_NODE for the operator. */
4262 /* The name of the operator. */
4264 /* The mangled name of the operator. */
4265 const char *mangled_name;
4266 /* The arity of the operator. */
4268 } operator_name_info_t;
4270 /* A mapping from tree codes to operator name information. */
4271 extern GTY(()) operator_name_info_t operator_name_info
4272 [(int) MAX_TREE_CODES];
4273 /* Similar, but for assignment operators. */
4274 extern GTY(()) operator_name_info_t assignment_operator_name_info
4275 [(int) MAX_TREE_CODES];
4277 /* A type-qualifier, or bitmask therefore, using the TYPE_QUAL
4280 typedef int cp_cv_quals;
4282 /* A storage class. */
4284 typedef enum cp_storage_class {
4285 /* sc_none must be zero so that zeroing a cp_decl_specifier_seq
4286 sets the storage_class field to sc_none. */
4295 /* An individual decl-specifier. */
4297 typedef enum cp_decl_spec {
4299 ds_signed = ds_first,
4317 /* A decl-specifier-seq. */
4319 typedef struct cp_decl_specifier_seq {
4320 /* The number of times each of the keywords has been seen. */
4321 unsigned specs[(int) ds_last];
4322 /* The primary type, if any, given by the decl-specifier-seq.
4323 Modifiers, like "short", "const", and "unsigned" are not
4324 reflected here. This field will be a TYPE, unless a typedef-name
4325 was used, in which case it will be a TYPE_DECL. */
4327 /* The location of the primary type. Mainly used for error
4329 location_t type_location;
4330 /* The attributes, if any, provided with the specifier sequence. */
4332 /* If non-NULL, a built-in type that the user attempted to redefine
4333 to some other type. */
4334 tree redefined_builtin_type;
4335 /* The storage class specified -- or sc_none if no storage class was
4336 explicitly specified. */
4337 cp_storage_class storage_class;
4338 /* True iff TYPE_SPEC indicates a user-defined type. */
4339 BOOL_BITFIELD user_defined_type_p : 1;
4340 /* True iff multiple types were (erroneously) specified for this
4341 decl-specifier-seq. */
4342 BOOL_BITFIELD multiple_types_p : 1;
4343 /* True iff multiple storage classes were (erroneously) specified
4344 for this decl-specifier-seq or a combination of a storage class
4345 with a typedef specifier. */
4346 BOOL_BITFIELD conflicting_specifiers_p : 1;
4347 /* True iff at least one decl-specifier was found. */
4348 BOOL_BITFIELD any_specifiers_p : 1;
4349 /* True iff at least one type-specifier was found. */
4350 BOOL_BITFIELD any_type_specifiers_p : 1;
4351 /* True iff "int" was explicitly provided. */
4352 BOOL_BITFIELD explicit_int_p : 1;
4353 /* True iff "char" was explicitly provided. */
4354 BOOL_BITFIELD explicit_char_p : 1;
4355 } cp_decl_specifier_seq;
4357 /* The various kinds of declarators. */
4359 typedef enum cp_declarator_kind {
4367 } cp_declarator_kind;
4371 typedef struct cp_declarator cp_declarator;
4373 typedef struct cp_parameter_declarator cp_parameter_declarator;
4375 /* A parameter, before it has been semantically analyzed. */
4376 struct cp_parameter_declarator {
4377 /* The next parameter, or NULL_TREE if none. */
4378 cp_parameter_declarator *next;
4379 /* The decl-specifiers-seq for the parameter. */
4380 cp_decl_specifier_seq decl_specifiers;
4381 /* The declarator for the parameter. */
4382 cp_declarator *declarator;
4383 /* The default-argument expression, or NULL_TREE, if none. */
4384 tree default_argument;
4385 /* True iff this is the first parameter in the list and the
4386 parameter sequence ends with an ellipsis. */
4391 struct cp_declarator {
4392 /* The kind of declarator. */
4393 ENUM_BITFIELD (cp_declarator_kind) kind : 4;
4394 /* Whether we parsed an ellipsis (`...') just before the declarator,
4395 to indicate this is a parameter pack. */
4396 BOOL_BITFIELD parameter_pack_p : 1;
4397 /* Attributes that apply to this declarator. */
4399 /* For all but cdk_id and cdk_error, the contained declarator. For
4400 cdk_id and cdk_error, guaranteed to be NULL. */
4401 cp_declarator *declarator;
4402 location_t id_loc; /* Currently only set for cdk_id and cdk_function. */
4404 /* For identifiers. */
4406 /* If non-NULL, the qualifying scope (a NAMESPACE_DECL or
4407 *_TYPE) for this identifier. */
4408 tree qualifying_scope;
4409 /* The unqualified name of the entity -- an IDENTIFIER_NODE,
4410 BIT_NOT_EXPR, or TEMPLATE_ID_EXPR. */
4411 tree unqualified_name;
4412 /* If this is the name of a function, what kind of special
4413 function (if any). */
4414 special_function_kind sfk;
4416 /* For functions. */
4418 /* The parameters to the function as a TREE_LIST of decl/default. */
4420 /* The cv-qualifiers for the function. */
4421 cp_cv_quals qualifiers;
4422 /* The exception-specification for the function. */
4423 tree exception_specification;
4424 /* The late-specified return type, if any. */
4425 tree late_return_type;
4429 /* The bounds to the array. */
4432 /* For cdk_pointer and cdk_ptrmem. */
4434 /* The cv-qualifiers for the pointer. */
4435 cp_cv_quals qualifiers;
4436 /* For cdk_ptrmem, the class type containing the member. */
4439 /* For cdk_reference */
4441 /* The cv-qualifiers for the reference. These qualifiers are
4442 only used to diagnose ill-formed code. */
4443 cp_cv_quals qualifiers;
4444 /* Whether this is an rvalue reference */
4450 /* A level of template instantiation. */
4451 struct GTY(()) tinst_level {
4452 /* The immediately deeper level in the chain. */
4453 struct tinst_level *next;
4455 /* The original node. Can be either a DECL (for a function or static
4456 data member) or a TYPE (for a class), depending on what we were
4457 asked to instantiate. */
4460 /* The location where the template is instantiated. */
4463 /* True if the location is in a system header. */
4464 bool in_system_header_p;
4467 /* A parameter list indicating for a function with no parameters,
4468 e.g "int f(void)". */
4469 extern cp_parameter_declarator *no_parameters;
4471 /* True if we saw "#pragma GCC java_exceptions". */
4472 extern bool pragma_java_exceptions;
4475 extern bool check_dtor_name (tree, tree);
4477 extern tree build_conditional_expr (tree, tree, tree,
4479 extern tree build_addr_func (tree);
4480 extern tree build_call_a (tree, int, tree*);
4481 extern tree build_call_n (tree, int, ...);
4482 extern bool null_ptr_cst_p (tree);
4483 extern bool sufficient_parms_p (const_tree);
4484 extern tree type_decays_to (tree);
4485 extern tree build_user_type_conversion (tree, tree, int);
4486 extern tree build_new_function_call (tree, VEC(tree,gc) **, bool,
4488 extern tree build_operator_new_call (tree, VEC(tree,gc) **, tree *,
4490 extern tree build_new_method_call (tree, tree, VEC(tree,gc) **,
4493 extern tree build_special_member_call (tree, tree, VEC(tree,gc) **,
4494 tree, int, tsubst_flags_t);
4495 extern tree build_new_op (enum tree_code, int, tree,
4498 extern tree build_op_call (tree, VEC(tree,gc) **,
4500 extern tree build_op_delete_call (enum tree_code, tree, tree, bool, tree, tree);
4501 extern bool can_convert (tree, tree);
4502 extern bool can_convert_arg (tree, tree, tree, int);
4503 extern bool can_convert_arg_bad (tree, tree, tree, int);
4504 extern bool enforce_access (tree, tree, tree);
4505 extern tree convert_default_arg (tree, tree, tree, int);
4506 extern tree convert_arg_to_ellipsis (tree);
4507 extern tree build_x_va_arg (tree, tree);
4508 extern tree cxx_type_promotes_to (tree);
4509 extern tree type_passed_as (tree);
4510 extern tree convert_for_arg_passing (tree, tree);
4511 extern bool is_properly_derived_from (tree, tree);
4512 extern tree set_up_extended_ref_temp (tree, tree, tree *, tree *);
4513 extern tree initialize_reference (tree, tree, tree, tree *, tsubst_flags_t);
4514 extern tree make_temporary_var_for_ref_to_temp (tree, tree);
4515 extern tree strip_top_quals (tree);
4516 extern bool reference_related_p (tree, tree);
4517 extern tree perform_implicit_conversion (tree, tree, tsubst_flags_t);
4518 extern tree perform_implicit_conversion_flags (tree, tree, tsubst_flags_t, int);
4519 extern tree perform_direct_initialization_if_possible (tree, tree, bool,
4521 extern tree in_charge_arg_for_name (tree);
4522 extern tree build_cxx_call (tree, int, tree *);
4523 extern bool is_std_init_list (tree);
4524 extern bool is_list_ctor (tree);
4525 #ifdef ENABLE_CHECKING
4526 extern void validate_conversion_obstack (void);
4527 #endif /* ENABLE_CHECKING */
4530 extern tree build_vfield_ref (tree, tree);
4531 extern tree build_base_path (enum tree_code, tree,
4533 extern tree convert_to_base (tree, tree, bool, bool);
4534 extern tree convert_to_base_statically (tree, tree);
4535 extern tree build_vtbl_ref (tree, tree);
4536 extern tree build_vfn_ref (tree, tree);
4537 extern tree get_vtable_decl (tree, int);
4538 extern void resort_type_method_vec (void *, void *,
4539 gt_pointer_operator, void *);
4540 extern bool add_method (tree, tree, tree);
4541 extern bool currently_open_class (tree);
4542 extern tree currently_open_derived_class (tree);
4543 extern tree finish_struct (tree, tree);
4544 extern void finish_struct_1 (tree);
4545 extern int resolves_to_fixed_type_p (tree, int *);
4546 extern void init_class_processing (void);
4547 extern int is_empty_class (tree);
4548 extern bool is_really_empty_class (tree);
4549 extern void pushclass (tree);
4550 extern void popclass (void);
4551 extern void push_nested_class (tree);
4552 extern void pop_nested_class (void);
4553 extern int current_lang_depth (void);
4554 extern void push_lang_context (tree);
4555 extern void pop_lang_context (void);
4556 extern tree instantiate_type (tree, tree, tsubst_flags_t);
4557 extern void print_class_statistics (void);
4558 extern void build_self_reference (void);
4559 extern int same_signature_p (const_tree, const_tree);
4560 extern void maybe_add_class_template_decl_list (tree, tree, int);
4561 extern void unreverse_member_declarations (tree);
4562 extern void invalidate_class_lookup_cache (void);
4563 extern void maybe_note_name_used_in_class (tree, tree);
4564 extern void note_name_declared_in_class (tree, tree);
4565 extern tree get_vtbl_decl_for_binfo (tree);
4566 extern void debug_class (tree);
4567 extern void debug_thunks (tree);
4568 extern tree cp_fold_obj_type_ref (tree, tree);
4569 extern void set_linkage_according_to_type (tree, tree);
4570 extern void determine_key_method (tree);
4571 extern void check_for_override (tree, tree);
4572 extern void push_class_stack (void);
4573 extern void pop_class_stack (void);
4574 extern bool type_has_user_nondefault_constructor (tree);
4575 extern bool user_provided_p (tree);
4576 extern bool type_has_user_provided_constructor (tree);
4577 extern bool type_has_user_provided_default_constructor (tree);
4578 extern void defaulted_late_check (tree);
4579 extern bool defaultable_fn_check (tree);
4580 extern void fixup_type_variants (tree);
4581 extern tree* decl_cloned_function_p (const_tree, bool);
4582 extern void clone_function_decl (tree, int);
4583 extern void adjust_clone_args (tree);
4586 extern tree convert_to_reference (tree, tree, int, int, tree);
4587 extern tree convert_from_reference (tree);
4588 extern tree force_rvalue (tree);
4589 extern tree ocp_convert (tree, tree, int, int);
4590 extern tree cp_convert (tree, tree);
4591 extern tree cp_convert_and_check (tree, tree);
4592 extern tree cp_fold_convert (tree, tree);
4593 extern tree convert_to_void (tree, const char */*implicit context*/,
4595 extern tree convert_force (tree, tree, int);
4596 extern tree build_expr_type_conversion (int, tree, bool);
4597 extern tree type_promotes_to (tree);
4598 extern tree perform_qualification_conversions (tree, tree);
4600 /* in name-lookup.c */
4601 extern tree pushdecl (tree);
4602 extern tree pushdecl_maybe_friend (tree, bool);
4603 extern void maybe_push_cleanup_level (tree);
4604 extern tree pushtag (tree, tree, tag_scope);
4605 extern tree make_anon_name (void);
4606 extern tree pushdecl_top_level_maybe_friend (tree, bool);
4607 extern tree pushdecl_top_level_and_finish (tree, tree);
4608 extern tree check_for_out_of_scope_variable (tree);
4609 extern void print_other_binding_stack (struct cp_binding_level *);
4610 extern tree maybe_push_decl (tree);
4613 extern tree poplevel (int, int, int);
4614 extern void cxx_init_decl_processing (void);
4615 enum cp_tree_node_structure_enum cp_tree_node_structure
4616 (union lang_tree_node *);
4617 extern void finish_scope (void);
4618 extern void push_switch (tree);
4619 extern void pop_switch (void);
4620 extern tree make_lambda_name (void);
4621 extern int decls_match (tree, tree);
4622 extern tree duplicate_decls (tree, tree, bool);
4623 extern tree declare_local_label (tree);
4624 extern tree define_label (location_t, tree);
4625 extern void check_goto (tree);
4626 extern bool check_omp_return (void);
4627 extern tree make_typename_type (tree, tree, enum tag_types, tsubst_flags_t);
4628 extern tree make_unbound_class_template (tree, tree, tree, tsubst_flags_t);
4629 extern tree build_library_fn_ptr (const char *, tree);
4630 extern tree build_cp_library_fn_ptr (const char *, tree);
4631 extern tree push_library_fn (tree, tree, tree);
4632 extern tree push_void_library_fn (tree, tree);
4633 extern tree push_throw_library_fn (tree, tree);
4634 extern tree check_tag_decl (cp_decl_specifier_seq *);
4635 extern tree shadow_tag (cp_decl_specifier_seq *);
4636 extern tree groktypename (cp_decl_specifier_seq *, const cp_declarator *, bool);
4637 extern tree start_decl (const cp_declarator *, cp_decl_specifier_seq *, int, tree, tree, tree *);
4638 extern void start_decl_1 (tree, bool);
4639 extern bool check_array_initializer (tree, tree, tree);
4640 extern void cp_finish_decl (tree, tree, bool, tree, int);
4641 extern int cp_complete_array_type (tree *, tree, bool);
4642 extern tree build_ptrmemfunc_type (tree);
4643 extern tree build_ptrmem_type (tree, tree);
4644 /* the grokdeclarator prototype is in decl.h */
4645 extern tree build_this_parm (tree, cp_cv_quals);
4646 extern int copy_fn_p (const_tree);
4647 extern bool move_fn_p (const_tree);
4648 extern tree get_scope_of_declarator (const cp_declarator *);
4649 extern void grok_special_member_properties (tree);
4650 extern int grok_ctor_properties (const_tree, const_tree);
4651 extern bool grok_op_properties (tree, bool);
4652 extern tree xref_tag (enum tag_types, tree, tag_scope, bool);
4653 extern tree xref_tag_from_type (tree, tree, tag_scope);
4654 extern bool xref_basetypes (tree, tree);
4655 extern tree start_enum (tree, tree, bool);
4656 extern void finish_enum (tree);
4657 extern void build_enumerator (tree, tree, tree);
4658 extern tree lookup_enumerator (tree, tree);
4659 extern void start_preparsed_function (tree, tree, int);
4660 extern int start_function (cp_decl_specifier_seq *, const cp_declarator *, tree);
4661 extern tree begin_function_body (void);
4662 extern void finish_function_body (tree);
4663 extern tree outer_curly_brace_block (tree);
4664 extern tree finish_function (int);
4665 extern tree grokmethod (cp_decl_specifier_seq *, const cp_declarator *, tree);
4666 extern void maybe_register_incomplete_var (tree);
4667 extern void maybe_commonize_var (tree);
4668 extern void complete_vars (tree);
4669 extern void finish_stmt (void);
4670 extern tree static_fn_type (tree);
4671 extern void revert_static_member_fn (tree);
4672 extern void fixup_anonymous_aggr (tree);
4673 extern int check_static_variable_definition (tree, tree);
4674 extern tree compute_array_index_type (tree, tree);
4675 extern tree check_default_argument (tree, tree);
4676 typedef int (*walk_namespaces_fn) (tree, void *);
4677 extern int walk_namespaces (walk_namespaces_fn,
4679 extern int wrapup_globals_for_namespace (tree, void *);
4680 extern tree create_implicit_typedef (tree, tree);
4681 extern int local_variable_p (const_tree);
4682 extern tree register_dtor_fn (tree);
4683 extern tmpl_spec_kind current_tmpl_spec_kind (int);
4684 extern tree cp_fname_init (const char *, tree *);
4685 extern tree cxx_builtin_function (tree decl);
4686 extern tree cxx_builtin_function_ext_scope (tree decl);
4687 extern tree check_elaborated_type_specifier (enum tag_types, tree, bool);
4688 extern void warn_extern_redeclared_static (tree, tree);
4689 extern tree cxx_comdat_group (tree);
4690 extern bool cp_missing_noreturn_ok_p (tree);
4691 extern void initialize_artificial_var (tree, tree);
4692 extern tree check_var_type (tree, tree);
4693 extern tree reshape_init (tree, tree);
4695 extern bool defer_mark_used_calls;
4696 extern GTY(()) VEC(tree, gc) *deferred_mark_used_calls;
4697 extern tree finish_case_label (location_t, tree, tree);
4698 extern tree cxx_maybe_build_cleanup (tree);
4701 extern bool check_java_method (tree);
4702 extern tree build_memfn_type (tree, tree, cp_cv_quals);
4703 extern void maybe_retrofit_in_chrg (tree);
4704 extern void maybe_make_one_only (tree);
4705 extern bool vague_linkage_fn_p (tree);
4706 extern void grokclassfn (tree, tree,
4707 enum overload_flags);
4708 extern tree grok_array_decl (tree, tree);
4709 extern tree delete_sanity (tree, tree, bool, int);
4710 extern tree check_classfn (tree, tree, tree);
4711 extern void check_member_template (tree);
4712 extern tree grokfield (const cp_declarator *, cp_decl_specifier_seq *,
4713 tree, bool, tree, tree);
4714 extern tree grokbitfield (const cp_declarator *, cp_decl_specifier_seq *,
4716 extern tree cp_reconstruct_complex_type (tree, tree);
4717 extern void cplus_decl_attributes (tree *, tree, int);
4718 extern void finish_anon_union (tree);
4719 extern void cp_write_global_declarations (void);
4720 extern tree coerce_new_type (tree);
4721 extern tree coerce_delete_type (tree);
4722 extern void comdat_linkage (tree);
4723 extern void determine_visibility (tree);
4724 extern void constrain_class_visibility (tree);
4725 extern void import_export_decl (tree);
4726 extern tree build_cleanup (tree);
4727 extern tree build_offset_ref_call_from_tree (tree, VEC(tree,gc) **);
4728 extern void check_default_args (tree);
4729 extern void mark_used (tree);
4730 extern void finish_static_data_member_decl (tree, tree, bool, tree, int);
4731 extern tree cp_build_parm_decl (tree, tree);
4732 extern tree get_guard (tree);
4733 extern tree get_guard_cond (tree);
4734 extern tree set_guard (tree);
4735 extern tree cxx_callgraph_analyze_expr (tree *, int *);
4736 extern void mark_needed (tree);
4737 extern bool decl_needed_p (tree);
4738 extern void note_vague_linkage_fn (tree);
4739 extern tree build_artificial_parm (tree, tree);
4740 extern bool possibly_inlined_p (tree);
4741 extern int parm_index (tree);
4744 extern void init_error (void);
4745 extern const char *type_as_string (tree, int);
4746 extern const char *type_as_string_translate (tree, int);
4747 extern const char *decl_as_string (tree, int);
4748 extern const char *decl_as_string_translate (tree, int);
4749 extern const char *expr_as_string (tree, int);
4750 extern const char *lang_decl_name (tree, int, bool);
4751 extern const char *language_to_string (enum languages);
4752 extern const char *class_key_or_enum_as_string (tree);
4753 extern void print_instantiation_context (void);
4754 extern void maybe_warn_variadic_templates (void);
4755 extern void maybe_warn_cpp0x (cpp0x_warn_str str);
4756 extern bool pedwarn_cxx98 (location_t, int, const char *, ...) ATTRIBUTE_GCC_CXXDIAG(3,4);
4759 extern void init_exception_processing (void);
4760 extern tree expand_start_catch_block (tree);
4761 extern void expand_end_catch_block (void);
4762 extern tree build_exc_ptr (void);
4763 extern tree build_throw (tree);
4764 extern int nothrow_libfn_p (const_tree);
4765 extern void check_handlers (tree);
4766 extern void choose_personality_routine (enum languages);
4767 extern tree eh_type_info (tree);
4768 extern tree begin_eh_spec_block (void);
4769 extern void finish_eh_spec_block (tree, tree);
4770 extern tree build_eh_type_type (tree);
4773 extern tree cplus_expand_constant (tree);
4776 extern int is_friend (tree, tree);
4777 extern void make_friend_class (tree, tree, bool);
4778 extern void add_friend (tree, tree, bool);
4779 extern tree do_friend (tree, tree, tree, tree, enum overload_flags, bool);
4782 extern tree expand_member_init (tree);
4783 extern void emit_mem_initializers (tree);
4784 extern tree build_aggr_init (tree, tree, int,
4786 extern int is_class_type (tree, int);
4787 extern tree get_type_value (tree);
4788 extern tree build_zero_init (tree, tree, bool);
4789 extern tree build_value_init (tree);
4790 extern tree build_value_init_noctor (tree);
4791 extern tree build_offset_ref (tree, tree, bool);
4792 extern tree build_new (VEC(tree,gc) **, tree, tree,
4793 VEC(tree,gc) **, int,
4795 extern tree build_vec_init (tree, tree, tree, bool, int,
4797 extern tree build_delete (tree, tree,
4798 special_function_kind,
4800 extern void push_base_cleanups (void);
4801 extern tree build_vec_delete (tree, tree,
4802 special_function_kind, int);
4803 extern tree create_temporary_var (tree);
4804 extern void initialize_vtbl_ptrs (tree);
4805 extern tree build_java_class_ref (tree);
4806 extern tree integral_constant_value (tree);
4809 extern void cxx_dup_lang_specific_decl (tree);
4810 extern void yyungetc (int, int);
4812 extern tree unqualified_name_lookup_error (tree);
4813 extern tree unqualified_fn_lookup_error (tree);
4814 extern tree build_lang_decl (enum tree_code, tree, tree);
4815 extern void retrofit_lang_decl (tree);
4816 extern tree copy_decl (tree);
4817 extern tree copy_type (tree);
4818 extern tree cxx_make_type (enum tree_code);
4819 extern tree make_class_type (enum tree_code);
4820 extern bool cxx_init (void);
4821 extern void cxx_finish (void);
4822 extern bool in_main_input_context (void);
4825 extern void init_method (void);
4826 extern tree make_thunk (tree, bool, tree, tree);
4827 extern void finish_thunk (tree);
4828 extern void use_thunk (tree, bool);
4829 extern void synthesize_method (tree);
4830 extern tree lazily_declare_fn (special_function_kind,
4832 extern tree skip_artificial_parms_for (const_tree, tree);
4833 extern int num_artificial_parms_for (const_tree);
4834 extern tree make_alias_for (tree, tree);
4835 extern tree locate_copy (tree, void *);
4836 extern tree locate_ctor (tree, void *);
4837 extern tree locate_dtor (tree, void *);
4840 extern bool maybe_clone_body (tree);
4843 extern bool check_template_shadow (tree);
4844 extern tree get_innermost_template_args (tree, int);
4845 extern void maybe_begin_member_template_processing (tree);
4846 extern void maybe_end_member_template_processing (void);
4847 extern tree finish_member_template_decl (tree);
4848 extern void begin_template_parm_list (void);
4849 extern bool begin_specialization (void);
4850 extern void reset_specialization (void);
4851 extern void end_specialization (void);
4852 extern void begin_explicit_instantiation (void);
4853 extern void end_explicit_instantiation (void);
4854 extern tree check_explicit_specialization (tree, tree, int, int);
4855 extern tree make_auto (void);
4856 extern tree do_auto_deduction (tree, tree, tree);
4857 extern tree type_uses_auto (tree);
4858 extern void append_type_to_template_for_access_check (tree, tree, tree,
4860 extern tree splice_late_return_type (tree, tree);
4861 extern bool is_auto (const_tree);
4862 extern tree process_template_parm (tree, location_t, tree,
4864 extern tree end_template_parm_list (tree);
4865 extern void end_template_decl (void);
4866 extern bool check_default_tmpl_args (tree, tree, int, int, int);
4867 extern tree push_template_decl (tree);
4868 extern tree push_template_decl_real (tree, bool);
4869 extern bool redeclare_class_template (tree, tree);
4870 extern tree lookup_template_class (tree, tree, tree, tree,
4871 int, tsubst_flags_t);
4872 extern tree lookup_template_function (tree, tree);
4873 extern int uses_template_parms (tree);
4874 extern int uses_template_parms_level (tree, int);
4875 extern tree instantiate_class_template (tree);
4876 extern tree instantiate_template (tree, tree, tsubst_flags_t);
4877 extern int fn_type_unification (tree, tree, tree,
4878 const tree *, unsigned int,
4879 tree, unification_kind_t, int);
4880 extern void mark_decl_instantiated (tree, int);
4881 extern int more_specialized_fn (tree, tree, int);
4882 extern void do_decl_instantiation (tree, tree);
4883 extern void do_type_instantiation (tree, tree, tsubst_flags_t);
4884 extern bool always_instantiate_p (tree);
4885 extern tree instantiate_decl (tree, int, bool);
4886 extern int comp_template_parms (const_tree, const_tree);
4887 extern bool uses_parameter_packs (tree);
4888 extern bool template_parameter_pack_p (const_tree);
4889 extern bool function_parameter_pack_p (const_tree);
4890 extern bool function_parameter_expanded_from_pack_p (tree, tree);
4891 extern tree make_pack_expansion (tree);
4892 extern bool check_for_bare_parameter_packs (tree);
4893 extern tree build_template_info (tree, tree);
4894 extern tree get_template_info (const_tree);
4895 extern VEC(qualified_typedef_usage_t,gc)* get_types_needing_access_check (tree);
4896 extern int template_class_depth (tree);
4897 extern int is_specialization_of (tree, tree);
4898 extern bool is_specialization_of_friend (tree, tree);
4899 extern tree get_pattern_parm (tree, tree);
4900 extern int comp_template_args (tree, tree);
4901 extern tree maybe_process_partial_specialization (tree);
4902 extern tree most_specialized_instantiation (tree);
4903 extern void print_candidates (tree);
4904 extern void instantiate_pending_templates (int);
4905 extern tree tsubst_default_argument (tree, tree, tree);
4906 extern tree tsubst (tree, tree, tsubst_flags_t, tree);
4907 extern tree tsubst_copy_and_build (tree, tree, tsubst_flags_t,
4909 extern tree most_general_template (tree);
4910 extern tree get_mostly_instantiated_function_type (tree);
4911 extern int problematic_instantiation_changed (void);
4912 extern void record_last_problematic_instantiation (void);
4913 extern struct tinst_level *current_instantiation(void);
4914 extern tree maybe_get_template_decl_from_type_decl (tree);
4915 extern int processing_template_parmlist;
4916 extern bool dependent_type_p (tree);
4917 extern bool dependent_scope_p (tree);
4918 extern bool any_dependent_template_arguments_p (const_tree);
4919 extern bool dependent_template_p (tree);
4920 extern bool dependent_template_id_p (tree, tree);
4921 extern bool type_dependent_expression_p (tree);
4922 extern bool any_type_dependent_arguments_p (const VEC(tree,gc) *);
4923 extern bool type_dependent_expression_p_push (tree);
4924 extern bool value_dependent_expression_p (tree);
4925 extern bool any_value_dependent_elements_p (const_tree);
4926 extern bool dependent_omp_for_p (tree, tree, tree, tree);
4927 extern tree resolve_typename_type (tree, bool);
4928 extern tree template_for_substitution (tree);
4929 extern tree build_non_dependent_expr (tree);
4930 extern void make_args_non_dependent (VEC(tree,gc) *);
4931 extern bool reregister_specialization (tree, tree, tree);
4932 extern tree fold_non_dependent_expr (tree);
4933 extern bool explicit_class_specialization_p (tree);
4934 extern struct tinst_level *outermost_tinst_level(void);
4935 extern bool parameter_of_template_p (tree, tree);
4936 extern void init_template_processing (void);
4937 bool template_template_parameter_p (const_tree);
4938 extern bool primary_template_instantiation_p (const_tree);
4939 extern tree get_primary_template_innermost_parameters (const_tree);
4940 extern tree get_template_innermost_arguments (const_tree);
4941 extern tree get_template_argument_pack_elems (const_tree);
4942 extern tree get_function_template_decl (const_tree);
4943 extern tree resolve_nondeduced_context (tree);
4946 extern void init_repo (void);
4947 extern int repo_emit_p (tree);
4948 extern bool repo_export_class_p (const_tree);
4949 extern void finish_repo (void);
4952 /* A vector of all tinfo decls that haven't been emitted yet. */
4953 extern GTY(()) VEC(tree,gc) *unemitted_tinfo_decls;
4955 extern void init_rtti_processing (void);
4956 extern tree build_typeid (tree);
4957 extern tree get_tinfo_decl (tree);
4958 extern tree get_typeid (tree);
4959 extern tree build_headof (tree);
4960 extern tree build_dynamic_cast (tree, tree, tsubst_flags_t);
4961 extern void emit_support_tinfos (void);
4962 extern bool emit_tinfo_decl (tree);
4965 extern bool accessible_base_p (tree, tree, bool);
4966 extern tree lookup_base (tree, tree, base_access,
4968 extern tree dcast_base_hint (tree, tree);
4969 extern int accessible_p (tree, tree, bool);
4970 extern tree lookup_field_1 (tree, tree, bool);
4971 extern tree lookup_field (tree, tree, int, bool);
4972 extern int lookup_fnfields_1 (tree, tree);
4973 extern int class_method_index_for_fn (tree, tree);
4974 extern tree lookup_fnfields (tree, tree, int);
4975 extern tree lookup_member (tree, tree, int, bool);
4976 extern int look_for_overrides (tree, tree);
4977 extern void get_pure_virtuals (tree);
4978 extern void maybe_suppress_debug_info (tree);
4979 extern void note_debug_info_needed (tree);
4980 extern void print_search_statistics (void);
4981 extern void reinit_search_statistics (void);
4982 extern tree current_scope (void);
4983 extern int at_function_scope_p (void);
4984 extern bool at_class_scope_p (void);
4985 extern bool at_namespace_scope_p (void);
4986 extern tree context_for_name_lookup (tree);
4987 extern tree lookup_conversions (tree);
4988 extern tree binfo_from_vbase (tree);
4989 extern tree binfo_for_vbase (tree, tree);
4990 extern tree look_for_overrides_here (tree, tree);
4991 #define dfs_skip_bases ((tree)1)
4992 extern tree dfs_walk_all (tree, tree (*) (tree, void *),
4993 tree (*) (tree, void *), void *);
4994 extern tree dfs_walk_once (tree, tree (*) (tree, void *),
4995 tree (*) (tree, void *), void *);
4996 extern tree binfo_via_virtual (tree, tree);
4997 extern tree build_baselink (tree, tree, tree, tree);
4998 extern tree adjust_result_of_qualified_name_lookup
5000 extern tree copied_binfo (tree, tree);
5001 extern tree original_binfo (tree, tree);
5002 extern int shared_member_p (tree);
5005 /* The representation of a deferred access check. */
5007 typedef struct GTY(()) deferred_access_check {
5008 /* The base class in which the declaration is referenced. */
5010 /* The declaration whose access must be checked. */
5012 /* The declaration that should be used in the error message. */
5014 } deferred_access_check;
5015 DEF_VEC_O(deferred_access_check);
5016 DEF_VEC_ALLOC_O(deferred_access_check,gc);
5018 /* in semantics.c */
5019 extern void push_deferring_access_checks (deferring_kind);
5020 extern void resume_deferring_access_checks (void);
5021 extern void stop_deferring_access_checks (void);
5022 extern void pop_deferring_access_checks (void);
5023 extern VEC (deferred_access_check,gc)* get_deferred_access_checks (void);
5024 extern void pop_to_parent_deferring_access_checks (void);
5025 extern void perform_access_checks (VEC (deferred_access_check,gc)*);
5026 extern void perform_deferred_access_checks (void);
5027 extern void perform_or_defer_access_check (tree, tree, tree);
5028 extern int stmts_are_full_exprs_p (void);
5029 extern void init_cp_semantics (void);
5030 extern tree do_poplevel (tree);
5031 extern void add_decl_expr (tree);
5032 extern tree finish_expr_stmt (tree);
5033 extern tree begin_if_stmt (void);
5034 extern void finish_if_stmt_cond (tree, tree);
5035 extern tree finish_then_clause (tree);
5036 extern void begin_else_clause (tree);
5037 extern void finish_else_clause (tree);
5038 extern void finish_if_stmt (tree);
5039 extern tree begin_while_stmt (void);
5040 extern void finish_while_stmt_cond (tree, tree);
5041 extern void finish_while_stmt (tree);
5042 extern tree begin_do_stmt (void);
5043 extern void finish_do_body (tree);
5044 extern void finish_do_stmt (tree, tree);
5045 extern tree finish_return_stmt (tree);
5046 extern tree begin_for_stmt (void);
5047 extern void finish_for_init_stmt (tree);
5048 extern void finish_for_cond (tree, tree);
5049 extern void finish_for_expr (tree, tree);
5050 extern void finish_for_stmt (tree);
5051 extern tree finish_break_stmt (void);
5052 extern tree finish_continue_stmt (void);
5053 extern tree begin_switch_stmt (void);
5054 extern void finish_switch_cond (tree, tree);
5055 extern void finish_switch_stmt (tree);
5056 extern tree finish_goto_stmt (tree);
5057 extern tree begin_try_block (void);
5058 extern void finish_try_block (tree);
5059 extern void finish_handler_sequence (tree);
5060 extern tree begin_function_try_block (tree *);
5061 extern void finish_function_try_block (tree);
5062 extern void finish_function_handler_sequence (tree, tree);
5063 extern void finish_cleanup_try_block (tree);
5064 extern tree begin_handler (void);
5065 extern void finish_handler_parms (tree, tree);
5066 extern void finish_handler (tree);
5067 extern void finish_cleanup (tree, tree);
5068 extern bool literal_type_p (tree);
5069 extern tree validate_constexpr_fundecl (tree);
5070 extern tree ensure_literal_type_for_constexpr_object (tree);
5077 extern tree begin_compound_stmt (unsigned int);
5079 extern void finish_compound_stmt (tree);
5080 extern tree finish_asm_stmt (int, tree, tree, tree, tree,
5082 extern tree finish_label_stmt (tree);
5083 extern void finish_label_decl (tree);
5084 extern tree finish_parenthesized_expr (tree);
5085 extern tree finish_non_static_data_member (tree, tree, tree);
5086 extern tree begin_stmt_expr (void);
5087 extern tree finish_stmt_expr_expr (tree, tree);
5088 extern tree finish_stmt_expr (tree, bool);
5089 extern tree stmt_expr_value_expr (tree);
5090 bool empty_expr_stmt_p (tree);
5091 extern tree perform_koenig_lookup (tree, VEC(tree,gc) *);
5092 extern tree finish_call_expr (tree, VEC(tree,gc) **, bool,
5093 bool, tsubst_flags_t);
5094 extern tree finish_increment_expr (tree, enum tree_code);
5095 extern tree finish_this_expr (void);
5096 extern tree finish_pseudo_destructor_expr (tree, tree, tree);
5097 extern tree finish_unary_op_expr (enum tree_code, tree);
5098 extern tree finish_compound_literal (tree, tree);
5099 extern tree finish_fname (tree);
5100 extern void finish_translation_unit (void);
5101 extern tree finish_template_type_parm (tree, tree);
5102 extern tree finish_template_template_parm (tree, tree);
5103 extern tree begin_class_definition (tree, tree);
5104 extern void finish_template_decl (tree);
5105 extern tree finish_template_type (tree, tree, int);
5106 extern tree finish_base_specifier (tree, tree, bool);
5107 extern void finish_member_declaration (tree);
5108 extern void qualified_name_lookup_error (tree, tree, tree,
5110 extern tree finish_id_expression (tree, tree, tree,
5113 bool, bool, bool, bool,
5116 extern tree finish_typeof (tree);
5117 extern tree finish_offsetof (tree);
5118 extern void finish_decl_cleanup (tree, tree);
5119 extern void finish_eh_cleanup (tree);
5120 extern void emit_associated_thunks (tree);
5121 extern void finish_mem_initializers (tree);
5122 extern tree check_template_template_default_arg (tree);
5123 extern bool expand_or_defer_fn_1 (tree);
5124 extern void expand_or_defer_fn (tree);
5125 extern void add_typedef_to_current_template_for_access_check (tree, tree,
5127 extern void check_accessibility_of_qualified_id (tree, tree, tree);
5128 extern tree finish_qualified_id_expr (tree, tree, bool, bool,
5130 extern void simplify_aggr_init_expr (tree *);
5131 extern void finalize_nrv (tree *, tree, tree);
5132 extern void note_decl_for_pch (tree);
5133 extern tree finish_omp_clauses (tree);
5134 extern void finish_omp_threadprivate (tree);
5135 extern tree begin_omp_structured_block (void);
5136 extern tree finish_omp_structured_block (tree);
5137 extern tree begin_omp_parallel (void);
5138 extern tree finish_omp_parallel (tree, tree);
5139 extern tree begin_omp_task (void);
5140 extern tree finish_omp_task (tree, tree);
5141 extern tree finish_omp_for (location_t, tree, tree,
5142 tree, tree, tree, tree, tree);
5143 extern void finish_omp_atomic (enum tree_code, tree, tree);
5144 extern void finish_omp_barrier (void);
5145 extern void finish_omp_flush (void);
5146 extern void finish_omp_taskwait (void);
5147 extern bool cxx_omp_create_clause_info (tree, tree, bool, bool, bool);
5148 extern tree baselink_for_fns (tree);
5149 extern void finish_static_assert (tree, tree, location_t,
5151 extern tree describable_type (tree);
5152 extern tree finish_decltype_type (tree, bool);
5153 extern tree finish_trait_expr (enum cp_trait_kind, tree, tree);
5154 extern tree build_lambda_expr (void);
5155 extern tree build_lambda_object (tree);
5156 extern tree begin_lambda_type (tree);
5157 extern tree lambda_capture_field_type (tree);
5158 extern tree lambda_return_type (tree);
5159 extern tree lambda_function (tree);
5160 extern void apply_lambda_return_type (tree, tree);
5161 extern tree add_capture (tree, tree, tree, bool, bool);
5162 extern tree add_default_capture (tree, tree, tree);
5163 extern tree lambda_expr_this_capture (tree);
5164 extern void maybe_add_lambda_conv_op (tree);
5167 void cp_free_lang_data (tree t);
5168 extern tree force_target_expr (tree, tree);
5169 extern tree build_target_expr_with_type (tree, tree);
5170 extern void lang_check_failed (const char *, int,
5171 const char *) ATTRIBUTE_NORETURN;
5172 extern tree stabilize_expr (tree, tree *);
5173 extern void stabilize_call (tree, tree *);
5174 extern void stabilize_aggr_init (tree, tree *);
5175 extern bool stabilize_init (tree, tree *);
5176 extern tree add_stmt_to_compound (tree, tree);
5177 extern void init_tree (void);
5178 extern bool pod_type_p (const_tree);
5179 extern bool layout_pod_type_p (const_tree);
5180 extern bool std_layout_type_p (const_tree);
5181 extern bool trivial_type_p (const_tree);
5182 extern bool type_has_nontrivial_default_init (const_tree);
5183 extern bool type_has_nontrivial_copy_init (const_tree);
5184 extern bool class_tmpl_impl_spec_p (const_tree);
5185 extern int zero_init_p (const_tree);
5186 extern tree strip_typedefs (tree);
5187 extern bool typedef_variant_p (tree);
5188 extern tree copy_binfo (tree, tree, tree,
5190 extern int member_p (const_tree);
5191 extern cp_lvalue_kind real_lvalue_p (tree);
5192 extern bool lvalue_or_rvalue_with_address_p (const_tree);
5193 extern bool builtin_valid_in_constant_expr_p (const_tree);
5194 extern tree build_min (enum tree_code, tree, ...);
5195 extern tree build_min_nt (enum tree_code, ...);
5196 extern tree build_min_non_dep (enum tree_code, tree, ...);
5197 extern tree build_min_non_dep_call_vec (tree, tree, VEC(tree,gc) *);
5198 extern tree build_cplus_new (tree, tree);
5199 extern tree build_aggr_init_expr (tree, tree);
5200 extern tree get_target_expr (tree);
5201 extern tree build_cplus_array_type (tree, tree);
5202 extern tree build_array_of_n_type (tree, int);
5203 extern tree build_array_copy (tree);
5204 extern tree hash_tree_cons (tree, tree, tree);
5205 extern tree hash_tree_chain (tree, tree);
5206 extern tree build_qualified_name (tree, tree, tree, bool);
5207 extern int is_overloaded_fn (tree);
5208 extern tree get_first_fn (tree);
5209 extern tree ovl_cons (tree, tree);
5210 extern tree build_overload (tree, tree);
5211 extern const char *cxx_printable_name (tree, int);
5212 extern const char *cxx_printable_name_translate (tree, int);
5213 extern tree build_exception_variant (tree, tree);
5214 extern tree bind_template_template_parm (tree, tree);
5215 extern tree array_type_nelts_total (tree);
5216 extern tree array_type_nelts_top (tree);
5217 extern tree break_out_target_exprs (tree);
5218 extern tree get_type_decl (tree);
5219 extern tree decl_namespace_context (tree);
5220 extern bool decl_anon_ns_mem_p (const_tree);
5221 extern tree lvalue_type (tree);
5222 extern tree error_type (tree);
5223 extern int varargs_function_p (const_tree);
5224 extern bool really_overloaded_fn (tree);
5225 extern bool cp_tree_equal (tree, tree);
5226 extern tree no_linkage_check (tree, bool);
5227 extern void debug_binfo (tree);
5228 extern tree build_dummy_object (tree);
5229 extern tree maybe_dummy_object (tree, tree *);
5230 extern int is_dummy_object (const_tree);
5231 extern const struct attribute_spec cxx_attribute_table[];
5232 extern tree make_ptrmem_cst (tree, tree);
5233 extern tree cp_build_type_attribute_variant (tree, tree);
5234 extern tree cp_build_reference_type (tree, bool);
5235 extern tree move (tree);
5236 extern tree cp_build_qualified_type_real (tree, int, tsubst_flags_t);
5237 #define cp_build_qualified_type(TYPE, QUALS) \
5238 cp_build_qualified_type_real ((TYPE), (QUALS), tf_warning_or_error)
5239 extern bool cv_qualified_p (const_tree);
5240 extern tree cv_unqualified (tree);
5241 extern special_function_kind special_function_p (const_tree);
5242 extern int count_trees (tree);
5243 extern int char_type_p (tree);
5244 extern void verify_stmt_tree (tree);
5245 extern linkage_kind decl_linkage (tree);
5246 extern tree cp_walk_subtrees (tree*, int*, walk_tree_fn,
5247 void*, struct pointer_set_t*);
5248 #define cp_walk_tree(a,b,c,d) \
5249 walk_tree_1 (a, b, c, d, cp_walk_subtrees)
5250 #define cp_walk_tree_without_duplicates(a,b,c) \
5251 walk_tree_without_duplicates_1 (a, b, c, cp_walk_subtrees)
5252 extern tree fold_if_not_in_template (tree);
5253 extern tree rvalue (tree);
5254 extern tree convert_bitfield_to_declared_type (tree);
5255 extern tree cp_save_expr (tree);
5256 extern bool cast_valid_in_integral_constant_expression_p (tree);
5257 extern bool cxx_type_hash_eq (const_tree, const_tree);
5259 extern void cxx_print_statistics (void);
5262 extern void cxx_print_xnode (FILE *, tree, int);
5263 extern void cxx_print_decl (FILE *, tree, int);
5264 extern void cxx_print_type (FILE *, tree, int);
5265 extern void cxx_print_identifier (FILE *, tree, int);
5266 extern void cxx_print_error_function (struct diagnostic_context *,
5268 struct diagnostic_info *);
5271 extern bool cxx_mark_addressable (tree);
5272 extern int string_conv_p (const_tree, const_tree, int);
5273 extern tree cp_truthvalue_conversion (tree);
5274 extern tree condition_conversion (tree);
5275 extern tree require_complete_type (tree);
5276 extern tree complete_type (tree);
5277 extern tree complete_type_or_else (tree, tree);
5278 extern int type_unknown_p (const_tree);
5279 extern bool comp_except_specs (const_tree, const_tree, bool);
5280 extern bool comptypes (tree, tree, int);
5281 extern bool compparms (const_tree, const_tree);
5282 extern int comp_cv_qualification (const_tree, const_tree);
5283 extern int comp_cv_qual_signature (tree, tree);
5284 extern tree cxx_sizeof_or_alignof_expr (tree, enum tree_code, bool);
5285 extern tree cxx_sizeof_or_alignof_type (tree, enum tree_code, bool);
5286 extern tree cxx_sizeof_nowarn (tree);
5287 extern tree is_bitfield_expr_with_lowered_type (const_tree);
5288 extern tree unlowered_expr_type (const_tree);
5289 extern tree decay_conversion (tree);
5290 extern tree build_class_member_access_expr (tree, tree, tree, bool,
5292 extern tree finish_class_member_access_expr (tree, tree, bool,
5294 extern tree build_x_indirect_ref (tree, const char *,
5296 extern tree cp_build_indirect_ref (tree, const char *,
5298 extern tree build_array_ref (location_t, tree, tree);
5299 extern tree get_member_function_from_ptrfunc (tree *, tree);
5300 extern tree cp_build_function_call (tree, tree, tsubst_flags_t);
5301 extern tree cp_build_function_call_vec (tree, VEC(tree,gc) **,
5303 extern tree build_x_binary_op (enum tree_code, tree,
5304 enum tree_code, tree,
5305 enum tree_code, bool *,
5307 extern tree build_x_array_ref (tree, tree, tsubst_flags_t);
5308 extern tree build_x_unary_op (enum tree_code, tree,
5310 extern tree cp_build_unary_op (enum tree_code, tree, int,
5312 extern tree unary_complex_lvalue (enum tree_code, tree);
5313 extern tree build_x_conditional_expr (tree, tree, tree,
5315 extern tree build_x_compound_expr_from_list (tree, const char *);
5316 extern tree build_x_compound_expr_from_vec (VEC(tree,gc) *, const char *);
5317 extern tree build_x_compound_expr (tree, tree, tsubst_flags_t);
5318 extern tree build_compound_expr (location_t, tree, tree);
5319 extern tree cp_build_compound_expr (tree, tree, tsubst_flags_t);
5320 extern tree build_static_cast (tree, tree, tsubst_flags_t);
5321 extern tree build_reinterpret_cast (tree, tree, tsubst_flags_t);
5322 extern tree build_const_cast (tree, tree, tsubst_flags_t);
5323 extern tree build_c_cast (location_t, tree, tree);
5324 extern tree cp_build_c_cast (tree, tree, tsubst_flags_t);
5325 extern tree build_x_modify_expr (tree, enum tree_code, tree,
5327 extern tree cp_build_modify_expr (tree, enum tree_code, tree,
5329 extern tree convert_for_initialization (tree, tree, tree, int,
5330 const char *, tree, int,
5332 extern int comp_ptr_ttypes (tree, tree);
5333 extern bool comp_ptr_ttypes_const (tree, tree);
5334 extern int ptr_reasonably_similar (const_tree, const_tree);
5335 extern tree build_ptrmemfunc (tree, tree, int, bool);
5336 extern int cp_type_quals (const_tree);
5337 extern bool cp_type_readonly (const_tree);
5338 extern bool cp_has_mutable_p (const_tree);
5339 extern bool at_least_as_qualified_p (const_tree, const_tree);
5340 extern void cp_apply_type_quals_to_decl (int, tree);
5341 extern tree build_ptrmemfunc1 (tree, tree, tree);
5342 extern void expand_ptrmemfunc_cst (tree, tree *, tree *);
5343 extern tree type_after_usual_arithmetic_conversions (tree, tree);
5344 extern tree common_pointer_type (tree, tree);
5345 extern tree composite_pointer_type (tree, tree, tree, tree,
5346 composite_pointer_operation,
5348 extern tree merge_types (tree, tree);
5349 extern tree check_return_expr (tree, bool *);
5350 extern tree cp_build_binary_op (location_t,
5351 enum tree_code, tree, tree,
5353 #define cxx_sizeof(T) cxx_sizeof_or_alignof_type (T, SIZEOF_EXPR, true)
5354 extern tree build_ptrmemfunc_access_expr (tree, tree);
5355 extern tree build_address (tree);
5356 extern tree build_typed_address (tree, tree);
5357 extern tree build_nop (tree, tree);
5358 extern tree non_reference (tree);
5359 extern tree lookup_anon_field (tree, tree);
5360 extern bool invalid_nonstatic_memfn_p (const_tree, tsubst_flags_t);
5361 extern tree convert_member_func_to_ptr (tree, tree);
5362 extern tree convert_ptrmem (tree, tree, bool, bool);
5363 extern int lvalue_or_else (tree, enum lvalue_use,
5365 extern void check_template_keyword (tree);
5368 extern void require_complete_eh_spec_types (tree, tree);
5369 extern void cxx_incomplete_type_diagnostic (const_tree, const_tree, diagnostic_t);
5370 #undef cxx_incomplete_type_error
5371 extern void cxx_incomplete_type_error (const_tree, const_tree);
5372 #define cxx_incomplete_type_error(V,T) \
5373 (cxx_incomplete_type_diagnostic ((V), (T), DK_ERROR))
5374 extern tree error_not_base_type (tree, tree);
5375 extern tree binfo_or_else (tree, tree);
5376 extern void readonly_error (tree, readonly_error_kind);
5377 extern void complete_type_check_abstract (tree);
5378 extern int abstract_virtuals_error (tree, tree);
5380 extern tree store_init_value (tree, tree, int);
5381 extern void check_narrowing (tree, tree);
5382 extern tree digest_init (tree, tree);
5383 extern tree digest_init_flags (tree, tree, int);
5384 extern tree build_scoped_ref (tree, tree, tree *);
5385 extern tree build_x_arrow (tree);
5386 extern tree build_m_component_ref (tree, tree);
5387 extern tree build_functional_cast (tree, tree, tsubst_flags_t);
5388 extern tree add_exception_specifier (tree, tree, int);
5389 extern tree merge_exception_specifiers (tree, tree);
5392 extern void init_mangle (void);
5393 extern void mangle_decl (tree);
5394 extern const char *mangle_type_string (tree);
5395 extern tree mangle_typeinfo_for_type (tree);
5396 extern tree mangle_typeinfo_string_for_type (tree);
5397 extern tree mangle_vtbl_for_type (tree);
5398 extern tree mangle_vtt_for_type (tree);
5399 extern tree mangle_ctor_vtbl_for_type (tree, tree);
5400 extern tree mangle_thunk (tree, int, tree, tree);
5401 extern tree mangle_conv_op_name_for_type (tree);
5402 extern tree mangle_guard_variable (tree);
5403 extern tree mangle_ref_init_variable (tree);
5406 extern bool cp_dump_tree (void *, tree);
5408 /* In cp/cp-objcp-common.c. */
5410 extern alias_set_type cxx_get_alias_set (tree);
5411 extern bool cxx_warn_unused_global_decl (const_tree);
5412 extern tree cp_expr_size (const_tree);
5413 extern size_t cp_tree_size (enum tree_code);
5414 extern bool cp_var_mod_type_p (tree, tree);
5415 extern void cxx_initialize_diagnostics (struct diagnostic_context *);
5416 extern int cxx_types_compatible_p (tree, tree);
5417 extern void init_shadowed_var_for_decl (void);
5419 /* in cp-gimplify.c */
5420 extern int cp_gimplify_expr (tree *, gimple_seq *,
5422 extern void cp_genericize (tree);
5423 extern enum omp_clause_default_kind cxx_omp_predetermined_sharing (tree);
5424 extern tree cxx_omp_clause_default_ctor (tree, tree, tree);
5425 extern tree cxx_omp_clause_copy_ctor (tree, tree, tree);
5426 extern tree cxx_omp_clause_assign_op (tree, tree, tree);
5427 extern tree cxx_omp_clause_dtor (tree, tree);
5428 extern void cxx_omp_finish_clause (tree);
5429 extern bool cxx_omp_privatize_by_reference (const_tree);
5433 #endif /* ! GCC_CP_TREE_H */