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 3: (TREE_REFERENCE_EXPR) (in NON_LVALUE_EXPR) (commented-out).
101 ICS_BAD_FLAG (in _CONV)
102 FN_TRY_BLOCK_P (in TRY_BLOCK)
103 IDENTIFIER_CTOR_OR_DTOR_P (in IDENTIFIER_NODE)
104 BIND_EXPR_BODY_BLOCK (in BIND_EXPR)
105 DECL_NON_TRIVIALLY_INITIALIZED_P (in VAR_DECL)
106 4: TREE_HAS_CONSTRUCTOR (in INDIRECT_REF, SAVE_EXPR, CONSTRUCTOR,
108 IDENTIFIER_TYPENAME_P (in IDENTIFIER_NODE)
109 DECL_TINFO_P (in VAR_DECL)
110 5: C_IS_RESERVED_WORD (in IDENTIFIER_NODE)
111 DECL_VTABLE_OR_VTT_P (in VAR_DECL)
112 6: IDENTIFIER_REPO_CHOSEN (in IDENTIFIER_NODE)
113 DECL_CONSTRUCTION_VTABLE_P (in VAR_DECL)
114 TYPE_MARKED_P (in _TYPE)
116 Usage of TYPE_LANG_FLAG_?:
118 1: TYPE_HAS_USER_CONSTRUCTOR.
121 4: TYPE_HAS_NONTRIVIAL_DESTRUCTOR
122 5: CLASS_TYPE_P (in RECORD_TYPE and UNION_TYPE)
123 SCOPED_ENUM_P (in ENUMERAL_TYPE)
124 6: TYPE_DEPENDENT_P_VALID
126 Usage of DECL_LANG_FLAG_?:
127 0: DECL_ERROR_REPORTED (in VAR_DECL).
128 DECL_TEMPLATE_PARM_P (in PARM_DECL, CONST_DECL, TYPE_DECL, or TEMPLATE_DECL)
129 DECL_LOCAL_FUNCTION_P (in FUNCTION_DECL)
130 DECL_MUTABLE_P (in FIELD_DECL)
131 DECL_DEPENDENT_P (in USING_DECL)
132 1: C_TYPEDEF_EXPLICITLY_SIGNED (in TYPE_DECL).
133 DECL_TEMPLATE_INSTANTIATED (in a VAR_DECL or a FUNCTION_DECL)
134 DECL_MEMBER_TEMPLATE_P (in TEMPLATE_DECL)
135 FUNCTION_PARAMETER_PACK_P (in PARM_DECL)
136 2: DECL_THIS_EXTERN (in VAR_DECL or FUNCTION_DECL).
137 DECL_IMPLICIT_TYPEDEF_P (in a TYPE_DECL)
139 4: DECL_C_BIT_FIELD (in a FIELD_DECL)
140 DECL_ANON_UNION_VAR_P (in a VAR_DECL)
141 DECL_SELF_REFERENCE_P (in a TYPE_DECL)
142 DECL_INVALID_OVERRIDER_P (in a FUNCTION_DECL)
143 5: DECL_INTERFACE_KNOWN.
144 6: DECL_THIS_STATIC (in VAR_DECL or FUNCTION_DECL).
145 DECL_FIELD_IS_BASE (in FIELD_DECL)
146 7: DECL_DEAD_FOR_LOCAL (in VAR_DECL).
147 DECL_THUNK_P (in a member FUNCTION_DECL)
149 Usage of language-independent fields in a language-dependent manner:
152 This field is used by TYPENAME_TYPEs, TEMPLATE_TYPE_PARMs, and so
153 forth as a substitute for the mark bits provided in `lang_type'.
154 At present, only the six low-order bits are used.
157 For an ENUMERAL_TYPE, this is ENUM_TEMPLATE_INFO.
158 For a FUNCTION_TYPE or METHOD_TYPE, this is TYPE_RAISES_EXCEPTIONS
161 For a binfo, this is a TREE_LIST. There is an entry for each
162 virtual function declared either in BINFO or its direct and
163 indirect primary bases.
165 The BV_DELTA of each node gives the amount by which to adjust the
166 `this' pointer when calling the function. If the method is an
167 overridden version of a base class method, then it is assumed
168 that, prior to adjustment, the this pointer points to an object
171 The BV_VCALL_INDEX of each node, if non-NULL, gives the vtable
172 index of the vcall offset for this entry.
174 The BV_FN is the declaration for the virtual function itself.
177 This is an expression with POINTER_TYPE that gives the value
178 to which the vptr should be initialized. Use get_vtbl_decl_for_binfo
179 to extract the VAR_DECL for the complete vtable.
182 This field is NULL for a non-virtual function. For a virtual
183 function, it is eventually set to an INTEGER_CST indicating the
184 index in the vtable at which this function can be found. When
185 a virtual function is declared, but before it is known what
186 function is overridden, this field is the error_mark_node.
188 Temporarily, it may be set to a TREE_LIST whose TREE_VALUE is
189 the virtual function this one overrides, and whose TREE_CHAIN is
190 the old DECL_VINDEX. */
192 /* Language-specific tree checkers. */
194 #define VAR_OR_FUNCTION_DECL_CHECK(NODE) \
195 TREE_CHECK2(NODE,VAR_DECL,FUNCTION_DECL)
197 #define VAR_FUNCTION_OR_PARM_DECL_CHECK(NODE) \
198 TREE_CHECK3(NODE,VAR_DECL,FUNCTION_DECL,PARM_DECL)
200 #define VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK(NODE) \
201 TREE_CHECK4(NODE,VAR_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL)
203 #define BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK(NODE) \
204 TREE_CHECK(NODE,BOUND_TEMPLATE_TEMPLATE_PARM)
206 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
207 #define THUNK_FUNCTION_CHECK(NODE) __extension__ \
208 ({ __typeof (NODE) const __t = (NODE); \
209 if (TREE_CODE (__t) != FUNCTION_DECL || !__t->decl_common.lang_specific \
210 || !__t->decl_common.lang_specific->u.fn.thunk_p) \
211 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, 0); \
214 #define THUNK_FUNCTION_CHECK(NODE) (NODE)
217 /* Language-dependent contents of an identifier. */
219 struct GTY(()) lang_identifier {
220 struct c_common_identifier c_common;
221 cxx_binding *namespace_bindings;
222 cxx_binding *bindings;
223 tree class_template_info;
227 /* In an IDENTIFIER_NODE, nonzero if this identifier is actually a
228 keyword. C_RID_CODE (node) is then the RID_* value of the keyword,
229 and C_RID_YYCODE is the token number wanted by Yacc. */
231 #define C_IS_RESERVED_WORD(ID) TREE_LANG_FLAG_5 (ID)
233 #define LANG_IDENTIFIER_CAST(NODE) \
234 ((struct lang_identifier*)IDENTIFIER_NODE_CHECK (NODE))
236 struct GTY(()) template_parm_index_s {
237 struct tree_common common;
243 typedef struct template_parm_index_s template_parm_index;
245 struct GTY(()) ptrmem_cst {
246 struct tree_common common;
247 /* This isn't used, but the middle-end expects all constants to have
252 typedef struct ptrmem_cst * ptrmem_cst_t;
254 #define IDENTIFIER_GLOBAL_VALUE(NODE) \
255 namespace_binding ((NODE), global_namespace)
256 #define SET_IDENTIFIER_GLOBAL_VALUE(NODE, VAL) \
257 set_namespace_binding ((NODE), global_namespace, (VAL))
258 #define IDENTIFIER_NAMESPACE_VALUE(NODE) \
259 namespace_binding ((NODE), current_namespace)
260 #define SET_IDENTIFIER_NAMESPACE_VALUE(NODE, VAL) \
261 set_namespace_binding ((NODE), current_namespace, (VAL))
263 #define CLEANUP_P(NODE) TREE_LANG_FLAG_0 (TRY_BLOCK_CHECK (NODE))
265 #define BIND_EXPR_TRY_BLOCK(NODE) \
266 TREE_LANG_FLAG_0 (BIND_EXPR_CHECK (NODE))
268 /* Used to mark the block around the member initializers and cleanups. */
269 #define BIND_EXPR_BODY_BLOCK(NODE) \
270 TREE_LANG_FLAG_3 (BIND_EXPR_CHECK (NODE))
271 #define FUNCTION_NEEDS_BODY_BLOCK(NODE) \
272 (DECL_CONSTRUCTOR_P (NODE) || DECL_DESTRUCTOR_P (NODE))
274 #define STATEMENT_LIST_NO_SCOPE(NODE) \
275 TREE_LANG_FLAG_0 (STATEMENT_LIST_CHECK (NODE))
276 #define STATEMENT_LIST_TRY_BLOCK(NODE) \
277 TREE_LANG_FLAG_2 (STATEMENT_LIST_CHECK (NODE))
279 /* Nonzero if this statement should be considered a full-expression,
280 i.e., if temporaries created during this statement should have
281 their destructors run at the end of this statement. */
282 #define STMT_IS_FULL_EXPR_P(NODE) TREE_LANG_FLAG_1 ((NODE))
284 /* Marks the result of a statement expression. */
285 #define EXPR_STMT_STMT_EXPR_RESULT(NODE) \
286 TREE_LANG_FLAG_0 (EXPR_STMT_CHECK (NODE))
288 /* Nonzero if this statement-expression does not have an associated scope. */
289 #define STMT_EXPR_NO_SCOPE(NODE) \
290 TREE_LANG_FLAG_0 (STMT_EXPR_CHECK (NODE))
292 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, in the usual
294 #define same_type_p(TYPE1, TYPE2) \
295 comptypes ((TYPE1), (TYPE2), COMPARE_STRICT)
297 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, ignoring
298 top-level qualifiers. */
299 #define same_type_ignoring_top_level_qualifiers_p(TYPE1, TYPE2) \
300 same_type_p (TYPE_MAIN_VARIANT (TYPE1), TYPE_MAIN_VARIANT (TYPE2))
302 /* Nonzero if we are presently building a statement tree, rather
303 than expanding each statement as we encounter it. */
304 #define building_stmt_tree() (cur_stmt_list != NULL_TREE)
306 /* Returns nonzero iff NODE is a declaration for the global function
308 #define DECL_MAIN_P(NODE) \
309 (DECL_EXTERN_C_FUNCTION_P (NODE) \
310 && DECL_NAME (NODE) != NULL_TREE \
311 && MAIN_NAME_P (DECL_NAME (NODE)) \
314 /* The overloaded FUNCTION_DECL. */
315 #define OVL_FUNCTION(NODE) \
316 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->function)
317 #define OVL_CHAIN(NODE) TREE_CHAIN (NODE)
318 /* Polymorphic access to FUNCTION and CHAIN. */
319 #define OVL_CURRENT(NODE) \
320 ((TREE_CODE (NODE) == OVERLOAD) ? OVL_FUNCTION (NODE) : (NODE))
321 #define OVL_NEXT(NODE) \
322 ((TREE_CODE (NODE) == OVERLOAD) ? TREE_CHAIN (NODE) : NULL_TREE)
323 /* If set, this was imported in a using declaration.
324 This is not to confuse with being used somewhere, which
325 is not important for this node. */
326 #define OVL_USED(NODE) TREE_USED (NODE)
328 struct GTY(()) tree_overload {
329 struct tree_common common;
333 /* Returns true iff NODE is a BASELINK. */
334 #define BASELINK_P(NODE) \
335 (TREE_CODE (NODE) == BASELINK)
336 /* The BINFO indicating the base from which the BASELINK_FUNCTIONS came. */
337 #define BASELINK_BINFO(NODE) \
338 (((struct tree_baselink*) BASELINK_CHECK (NODE))->binfo)
339 /* The functions referred to by the BASELINK; either a FUNCTION_DECL,
340 a TEMPLATE_DECL, an OVERLOAD, or a TEMPLATE_ID_EXPR. */
341 #define BASELINK_FUNCTIONS(NODE) \
342 (((struct tree_baselink*) BASELINK_CHECK (NODE))->functions)
343 /* The BINFO in which the search for the functions indicated by this baselink
344 began. This base is used to determine the accessibility of functions
345 selected by overload resolution. */
346 #define BASELINK_ACCESS_BINFO(NODE) \
347 (((struct tree_baselink*) BASELINK_CHECK (NODE))->access_binfo)
348 /* For a type-conversion operator, the BASELINK_OPTYPE indicates the type
349 to which the conversion should occur. This value is important if
350 the BASELINK_FUNCTIONS include a template conversion operator --
351 the BASELINK_OPTYPE can be used to determine what type the user
353 #define BASELINK_OPTYPE(NODE) \
354 (TREE_CHAIN (BASELINK_CHECK (NODE)))
355 /* Nonzero if this baselink was from a qualified lookup. */
356 #define BASELINK_QUALIFIED_P(NODE) \
357 TREE_LANG_FLAG_0 (BASELINK_CHECK (NODE))
359 struct GTY(()) tree_baselink {
360 struct tree_common common;
366 /* The different kinds of ids that we encounter. */
368 typedef enum cp_id_kind
370 /* Not an id at all. */
372 /* An unqualified-id that is not a template-id. */
373 CP_ID_KIND_UNQUALIFIED,
374 /* An unqualified-id that is a dependent name. */
375 CP_ID_KIND_UNQUALIFIED_DEPENDENT,
376 /* An unqualified template-id. */
377 CP_ID_KIND_TEMPLATE_ID,
378 /* A qualified-id. */
382 /* Macros for access to language-specific slots in an identifier. */
384 #define IDENTIFIER_NAMESPACE_BINDINGS(NODE) \
385 (LANG_IDENTIFIER_CAST (NODE)->namespace_bindings)
386 #define IDENTIFIER_TEMPLATE(NODE) \
387 (LANG_IDENTIFIER_CAST (NODE)->class_template_info)
389 /* The IDENTIFIER_BINDING is the innermost cxx_binding for the
390 identifier. It's PREVIOUS is the next outermost binding. Each
391 VALUE field is a DECL for the associated declaration. Thus,
392 name lookup consists simply of pulling off the node at the front
393 of the list (modulo oddities for looking up the names of types,
394 and such.) You can use SCOPE field to determine the scope
395 that bound the name. */
396 #define IDENTIFIER_BINDING(NODE) \
397 (LANG_IDENTIFIER_CAST (NODE)->bindings)
399 /* TREE_TYPE only indicates on local and class scope the current
400 type. For namespace scope, the presence of a type in any namespace
401 is indicated with global_type_node, and the real type behind must
402 be found through lookup. */
403 #define IDENTIFIER_TYPE_VALUE(NODE) identifier_type_value (NODE)
404 #define REAL_IDENTIFIER_TYPE_VALUE(NODE) TREE_TYPE (NODE)
405 #define SET_IDENTIFIER_TYPE_VALUE(NODE,TYPE) (TREE_TYPE (NODE) = (TYPE))
406 #define IDENTIFIER_HAS_TYPE_VALUE(NODE) (IDENTIFIER_TYPE_VALUE (NODE) ? 1 : 0)
408 #define IDENTIFIER_LABEL_VALUE(NODE) \
409 (LANG_IDENTIFIER_CAST (NODE)->label_value)
410 #define SET_IDENTIFIER_LABEL_VALUE(NODE, VALUE) \
411 IDENTIFIER_LABEL_VALUE (NODE) = (VALUE)
413 /* Nonzero if this identifier is used as a virtual function name somewhere
414 (optimizes searches). */
415 #define IDENTIFIER_VIRTUAL_P(NODE) TREE_LANG_FLAG_1 (NODE)
417 /* Nonzero if this identifier is the prefix for a mangled C++ operator
419 #define IDENTIFIER_OPNAME_P(NODE) TREE_LANG_FLAG_2 (NODE)
421 /* Nonzero if this identifier is the name of a type-conversion
423 #define IDENTIFIER_TYPENAME_P(NODE) \
424 TREE_LANG_FLAG_4 (NODE)
426 /* Nonzero if this identifier is the name of a constructor or
428 #define IDENTIFIER_CTOR_OR_DTOR_P(NODE) \
429 TREE_LANG_FLAG_3 (NODE)
431 /* True iff NAME is the DECL_ASSEMBLER_NAME for an entity with vague
432 linkage which the prelinker has assigned to this translation
434 #define IDENTIFIER_REPO_CHOSEN(NAME) \
435 (TREE_LANG_FLAG_6 (NAME))
437 /* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */
438 #define C_TYPE_FIELDS_READONLY(TYPE) \
439 (LANG_TYPE_CLASS_CHECK (TYPE)->fields_readonly)
441 /* The tokens stored in the default argument. */
443 #define DEFARG_TOKENS(NODE) \
444 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->tokens)
445 #define DEFARG_INSTANTIATIONS(NODE) \
446 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->instantiations)
448 struct GTY (()) tree_default_arg {
449 struct tree_common common;
450 struct cp_token_cache *tokens;
451 VEC(tree,gc) *instantiations;
454 /* The condition associated with the static assertion. This must be
455 an integral constant expression. */
456 #define STATIC_ASSERT_CONDITION(NODE) \
457 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->condition)
459 /* The message associated with the static assertion. This must be a
460 string constant, which will be emitted as an error message when the
461 static assert condition is false. */
462 #define STATIC_ASSERT_MESSAGE(NODE) \
463 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->message)
465 /* Source location information for a static assertion. */
466 #define STATIC_ASSERT_SOURCE_LOCATION(NODE) \
467 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->location)
469 struct GTY (()) tree_static_assert {
470 struct tree_common common;
476 struct GTY (()) tree_argument_pack_select {
477 struct tree_common common;
482 /* The different kinds of traits that we encounter. */
484 typedef enum cp_trait_kind
486 CPTK_HAS_NOTHROW_ASSIGN,
487 CPTK_HAS_NOTHROW_CONSTRUCTOR,
488 CPTK_HAS_NOTHROW_COPY,
489 CPTK_HAS_TRIVIAL_ASSIGN,
490 CPTK_HAS_TRIVIAL_CONSTRUCTOR,
491 CPTK_HAS_TRIVIAL_COPY,
492 CPTK_HAS_TRIVIAL_DESTRUCTOR,
493 CPTK_HAS_VIRTUAL_DESTRUCTOR,
497 CPTK_IS_CONVERTIBLE_TO,
507 /* The types that we are processing. */
508 #define TRAIT_EXPR_TYPE1(NODE) \
509 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type1)
511 #define TRAIT_EXPR_TYPE2(NODE) \
512 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type2)
514 /* The specific trait that we are processing. */
515 #define TRAIT_EXPR_KIND(NODE) \
516 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->kind)
518 struct GTY (()) tree_trait_expr {
519 struct tree_common common;
522 enum cp_trait_kind kind;
525 /* Based off of TYPE_ANONYMOUS_P. */
526 #define LAMBDA_TYPE_P(NODE) \
527 (CLASS_TYPE_P (NODE) && LAMBDANAME_P (TYPE_LINKAGE_IDENTIFIER (NODE)))
529 /* Test if FUNCTION_DECL is a lambda function. */
530 #define LAMBDA_FUNCTION_P(FNDECL) \
531 (DECL_OVERLOADED_OPERATOR_P (FNDECL) == CALL_EXPR \
532 && LAMBDA_TYPE_P (CP_DECL_CONTEXT (FNDECL)))
534 enum cp_lambda_default_capture_mode_type {
540 /* The method of default capture, if any. */
541 #define LAMBDA_EXPR_DEFAULT_CAPTURE_MODE(NODE) \
542 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->default_capture_mode)
544 /* The capture-list, including `this'. Each capture is stored as a FIELD_DECL
545 * so that the name, type, and field are all together, whether or not it has
546 * been added to the lambda's class type.
548 TREE_PURPOSE: The FIELD_DECL for this capture.
549 TREE_VALUE: The initializer. This is part of a GNU extension. */
550 #define LAMBDA_EXPR_CAPTURE_LIST(NODE) \
551 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->capture_list)
553 /* The node in the capture-list that holds the 'this' capture. */
554 #define LAMBDA_EXPR_THIS_CAPTURE(NODE) \
555 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->this_capture)
557 /* Predicate tracking whether `this' is in the effective capture set. */
558 #define LAMBDA_EXPR_CAPTURES_THIS_P(NODE) \
559 LAMBDA_EXPR_THIS_CAPTURE(NODE)
561 /* Predicate tracking whether the lambda was declared 'mutable'. */
562 #define LAMBDA_EXPR_MUTABLE_P(NODE) \
563 TREE_LANG_FLAG_1 (LAMBDA_EXPR_CHECK (NODE))
565 /* True iff we should try to deduce the lambda return type from any return
567 #define LAMBDA_EXPR_DEDUCE_RETURN_TYPE_P(NODE) \
568 TREE_LANG_FLAG_2 (LAMBDA_EXPR_CHECK (NODE))
570 /* The return type in the expression.
571 * NULL_TREE indicates that none was specified. */
572 #define LAMBDA_EXPR_RETURN_TYPE(NODE) \
573 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->return_type)
575 /* The source location of the lambda. */
576 #define LAMBDA_EXPR_LOCATION(NODE) \
577 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->locus)
579 /* The mangling scope for the lambda: FUNCTION_DECL, PARM_DECL, VAR_DECL,
580 FIELD_DECL or NULL_TREE. If this is NULL_TREE, we have no linkage. */
581 #define LAMBDA_EXPR_EXTRA_SCOPE(NODE) \
582 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->extra_scope)
584 /* If EXTRA_SCOPE, this is the number of the lambda within that scope. */
585 #define LAMBDA_EXPR_DISCRIMINATOR(NODE) \
586 (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->discriminator)
588 struct GTY (()) tree_lambda_expr
590 struct tree_common common;
592 enum cp_lambda_default_capture_mode_type default_capture_mode;
600 enum cp_tree_node_structure_enum {
611 TS_CP_ARGUMENT_PACK_SELECT,
617 /* The resulting tree type. */
618 union GTY((desc ("cp_tree_node_structure (&%h)"),
619 chain_next ("(union lang_tree_node *)TREE_CHAIN (&%h.generic)"))) lang_tree_node {
620 union tree_node GTY ((tag ("TS_CP_GENERIC"),
621 desc ("tree_node_structure (&%h)"))) generic;
622 struct template_parm_index_s GTY ((tag ("TS_CP_TPI"))) tpi;
623 struct ptrmem_cst GTY ((tag ("TS_CP_PTRMEM"))) ptrmem;
624 struct tree_overload GTY ((tag ("TS_CP_OVERLOAD"))) overload;
625 struct tree_baselink GTY ((tag ("TS_CP_BASELINK"))) baselink;
626 struct tree_default_arg GTY ((tag ("TS_CP_DEFAULT_ARG"))) default_arg;
627 struct lang_identifier GTY ((tag ("TS_CP_IDENTIFIER"))) identifier;
628 struct tree_static_assert GTY ((tag ("TS_CP_STATIC_ASSERT")))
630 struct tree_argument_pack_select GTY ((tag ("TS_CP_ARGUMENT_PACK_SELECT")))
631 argument_pack_select;
632 struct tree_trait_expr GTY ((tag ("TS_CP_TRAIT_EXPR")))
634 struct tree_lambda_expr GTY ((tag ("TS_CP_LAMBDA_EXPR")))
642 CPTI_JAVA_SHORT_TYPE,
645 CPTI_JAVA_FLOAT_TYPE,
646 CPTI_JAVA_DOUBLE_TYPE,
648 CPTI_JAVA_BOOLEAN_TYPE,
651 CPTI_VTABLE_ENTRY_TYPE,
653 CPTI_VTABLE_INDEX_TYPE,
664 CPTI_CONST_TYPE_INFO_TYPE,
665 CPTI_TYPE_INFO_PTR_TYPE,
667 CPTI_GLOBAL_DELETE_FNDECL,
670 CPTI_CTOR_IDENTIFIER,
671 CPTI_COMPLETE_CTOR_IDENTIFIER,
672 CPTI_BASE_CTOR_IDENTIFIER,
673 CPTI_DTOR_IDENTIFIER,
674 CPTI_COMPLETE_DTOR_IDENTIFIER,
675 CPTI_BASE_DTOR_IDENTIFIER,
676 CPTI_DELETING_DTOR_IDENTIFIER,
677 CPTI_DELTA_IDENTIFIER,
678 CPTI_IN_CHARGE_IDENTIFIER,
679 CPTI_VTT_PARM_IDENTIFIER,
680 CPTI_NELTS_IDENTIFIER,
681 CPTI_THIS_IDENTIFIER,
683 CPTI_VPTR_IDENTIFIER,
687 CPTI_LANG_NAME_CPLUSPLUS,
690 CPTI_EMPTY_EXCEPT_SPEC,
693 CPTI_CALL_UNEXPECTED,
694 CPTI_ATEXIT_FN_PTR_TYPE,
704 extern GTY(()) tree cp_global_trees[CPTI_MAX];
706 #define java_byte_type_node cp_global_trees[CPTI_JAVA_BYTE_TYPE]
707 #define java_short_type_node cp_global_trees[CPTI_JAVA_SHORT_TYPE]
708 #define java_int_type_node cp_global_trees[CPTI_JAVA_INT_TYPE]
709 #define java_long_type_node cp_global_trees[CPTI_JAVA_LONG_TYPE]
710 #define java_float_type_node cp_global_trees[CPTI_JAVA_FLOAT_TYPE]
711 #define java_double_type_node cp_global_trees[CPTI_JAVA_DOUBLE_TYPE]
712 #define java_char_type_node cp_global_trees[CPTI_JAVA_CHAR_TYPE]
713 #define java_boolean_type_node cp_global_trees[CPTI_JAVA_BOOLEAN_TYPE]
715 #define wchar_decl_node cp_global_trees[CPTI_WCHAR_DECL]
716 #define vtable_entry_type cp_global_trees[CPTI_VTABLE_ENTRY_TYPE]
717 /* The type used to represent an offset by which to adjust the `this'
718 pointer in pointer-to-member types. */
719 #define delta_type_node cp_global_trees[CPTI_DELTA_TYPE]
720 /* The type used to represent an index into the vtable. */
721 #define vtable_index_type cp_global_trees[CPTI_VTABLE_INDEX_TYPE]
723 #define class_type_node cp_global_trees[CPTI_CLASS_TYPE]
724 #define unknown_type_node cp_global_trees[CPTI_UNKNOWN_TYPE]
725 #define init_list_type_node cp_global_trees[CPTI_INIT_LIST_TYPE]
726 #define vtbl_type_node cp_global_trees[CPTI_VTBL_TYPE]
727 #define vtbl_ptr_type_node cp_global_trees[CPTI_VTBL_PTR_TYPE]
728 #define std_node cp_global_trees[CPTI_STD]
729 #define abi_node cp_global_trees[CPTI_ABI]
730 #define const_type_info_type_node cp_global_trees[CPTI_CONST_TYPE_INFO_TYPE]
731 #define type_info_ptr_type cp_global_trees[CPTI_TYPE_INFO_PTR_TYPE]
732 #define abort_fndecl cp_global_trees[CPTI_ABORT_FNDECL]
733 #define global_delete_fndecl cp_global_trees[CPTI_GLOBAL_DELETE_FNDECL]
734 #define current_aggr cp_global_trees[CPTI_AGGR_TAG]
736 /* We cache these tree nodes so as to call get_identifier less
739 /* The name of a constructor that takes an in-charge parameter to
740 decide whether or not to construct virtual base classes. */
741 #define ctor_identifier cp_global_trees[CPTI_CTOR_IDENTIFIER]
742 /* The name of a constructor that constructs virtual base classes. */
743 #define complete_ctor_identifier cp_global_trees[CPTI_COMPLETE_CTOR_IDENTIFIER]
744 /* The name of a constructor that does not construct virtual base classes. */
745 #define base_ctor_identifier cp_global_trees[CPTI_BASE_CTOR_IDENTIFIER]
746 /* The name of a destructor that takes an in-charge parameter to
747 decide whether or not to destroy virtual base classes and whether
748 or not to delete the object. */
749 #define dtor_identifier cp_global_trees[CPTI_DTOR_IDENTIFIER]
750 /* The name of a destructor that destroys virtual base classes. */
751 #define complete_dtor_identifier cp_global_trees[CPTI_COMPLETE_DTOR_IDENTIFIER]
752 /* The name of a destructor that does not destroy virtual base
754 #define base_dtor_identifier cp_global_trees[CPTI_BASE_DTOR_IDENTIFIER]
755 /* The name of a destructor that destroys virtual base classes, and
756 then deletes the entire object. */
757 #define deleting_dtor_identifier cp_global_trees[CPTI_DELETING_DTOR_IDENTIFIER]
758 #define delta_identifier cp_global_trees[CPTI_DELTA_IDENTIFIER]
759 #define in_charge_identifier cp_global_trees[CPTI_IN_CHARGE_IDENTIFIER]
760 /* The name of the parameter that contains a pointer to the VTT to use
761 for this subobject constructor or destructor. */
762 #define vtt_parm_identifier cp_global_trees[CPTI_VTT_PARM_IDENTIFIER]
763 #define nelts_identifier cp_global_trees[CPTI_NELTS_IDENTIFIER]
764 #define this_identifier cp_global_trees[CPTI_THIS_IDENTIFIER]
765 #define pfn_identifier cp_global_trees[CPTI_PFN_IDENTIFIER]
766 #define vptr_identifier cp_global_trees[CPTI_VPTR_IDENTIFIER]
767 /* The name of the std namespace. */
768 #define std_identifier cp_global_trees[CPTI_STD_IDENTIFIER]
769 #define lang_name_c cp_global_trees[CPTI_LANG_NAME_C]
770 #define lang_name_cplusplus cp_global_trees[CPTI_LANG_NAME_CPLUSPLUS]
771 #define lang_name_java cp_global_trees[CPTI_LANG_NAME_JAVA]
773 /* Exception specifier used for throw(). */
774 #define empty_except_spec cp_global_trees[CPTI_EMPTY_EXCEPT_SPEC]
776 /* If non-NULL, a POINTER_TYPE equivalent to (java::lang::Class*). */
777 #define jclass_node cp_global_trees[CPTI_JCLASS]
779 /* The declaration for `std::terminate'. */
780 #define terminate_node cp_global_trees[CPTI_TERMINATE]
782 /* The declaration for "__cxa_call_unexpected". */
783 #define call_unexpected_node cp_global_trees[CPTI_CALL_UNEXPECTED]
785 /* The type of the function-pointer argument to "__cxa_atexit" (or
786 "std::atexit", if "__cxa_atexit" is not being used). */
787 #define atexit_fn_ptr_type_node cp_global_trees[CPTI_ATEXIT_FN_PTR_TYPE]
789 /* A pointer to `std::atexit'. */
790 #define atexit_node cp_global_trees[CPTI_ATEXIT]
792 /* A pointer to `__dso_handle'. */
793 #define dso_handle_node cp_global_trees[CPTI_DSO_HANDLE]
795 /* The declaration of the dynamic_cast runtime. */
796 #define dynamic_cast_node cp_global_trees[CPTI_DCAST]
798 /* The type of a destructor. */
799 #define cleanup_type cp_global_trees[CPTI_CLEANUP_TYPE]
801 /* The type of the vtt parameter passed to subobject constructors and
803 #define vtt_parm_type cp_global_trees[CPTI_VTT_PARM_TYPE]
805 /* A TREE_LIST of the dynamic classes whose vtables may have to be
806 emitted in this translation unit. */
808 #define keyed_classes cp_global_trees[CPTI_KEYED_CLASSES]
810 /* Node to indicate default access. This must be distinct from the
811 access nodes in tree.h. */
813 #define access_default_node null_node
817 struct GTY(()) saved_scope {
818 VEC(cxx_saved_binding,gc) *old_bindings;
823 tree access_specifier;
825 VEC(tree,gc) *lang_base;
828 struct cp_binding_level *x_previous_class_level;
831 int x_processing_template_decl;
832 int x_processing_specialization;
833 BOOL_BITFIELD x_processing_explicit_instantiation : 1;
834 BOOL_BITFIELD need_pop_function_context : 1;
836 int unevaluated_operand;
837 int inhibit_evaluation_warnings;
839 struct stmt_tree_s x_stmt_tree;
841 struct cp_binding_level *class_bindings;
842 struct cp_binding_level *bindings;
844 struct saved_scope *prev;
847 /* The current open namespace. */
849 #define current_namespace scope_chain->old_namespace
851 /* The stack for namespaces of current declarations. */
853 #define decl_namespace_list scope_chain->decl_ns_list
855 /* IDENTIFIER_NODE: name of current class */
857 #define current_class_name scope_chain->class_name
859 /* _TYPE: the type of the current class */
861 #define current_class_type scope_chain->class_type
863 /* When parsing a class definition, the access specifier most recently
864 given by the user, or, if no access specifier was given, the
865 default value appropriate for the kind of class (i.e., struct,
868 #define current_access_specifier scope_chain->access_specifier
870 /* Pointer to the top of the language name stack. */
872 #define current_lang_base scope_chain->lang_base
873 #define current_lang_name scope_chain->lang_name
875 /* When parsing a template declaration, a TREE_LIST represents the
876 active template parameters. Each node in the list represents one
877 level of template parameters. The innermost level is first in the
878 list. The depth of each level is stored as an INTEGER_CST in the
879 TREE_PURPOSE of each node. The parameters for that level are
880 stored in the TREE_VALUE. */
882 #define current_template_parms scope_chain->template_parms
884 #define processing_template_decl scope_chain->x_processing_template_decl
885 #define processing_specialization scope_chain->x_processing_specialization
886 #define processing_explicit_instantiation scope_chain->x_processing_explicit_instantiation
888 /* The cached class binding level, from the most recently exited
889 class, or NULL if none. */
891 #define previous_class_level scope_chain->x_previous_class_level
893 /* A list of private types mentioned, for deferred access checking. */
895 extern GTY(()) struct saved_scope *scope_chain;
897 struct GTY(()) cxx_int_tree_map {
902 extern unsigned int cxx_int_tree_map_hash (const void *);
903 extern int cxx_int_tree_map_eq (const void *, const void *);
905 /* Global state pertinent to the current function. */
907 struct GTY(()) language_function {
908 struct c_language_function base;
911 tree x_current_class_ptr;
912 tree x_current_class_ref;
913 tree x_eh_spec_block;
914 tree x_in_charge_parm;
918 BOOL_BITFIELD returns_value : 1;
919 BOOL_BITFIELD returns_null : 1;
920 BOOL_BITFIELD returns_abnormally : 1;
921 BOOL_BITFIELD in_function_try_handler : 1;
922 BOOL_BITFIELD in_base_initializer : 1;
924 /* True if this function can throw an exception. */
925 BOOL_BITFIELD can_throw : 1;
927 htab_t GTY((param_is(struct named_label_entry))) x_named_labels;
928 struct cp_binding_level *bindings;
929 VEC(tree,gc) *x_local_names;
930 htab_t GTY((param_is (struct cxx_int_tree_map))) extern_decl_map;
933 /* The current C++-specific per-function global variables. */
935 #define cp_function_chain (cfun->language)
937 /* In a constructor destructor, the point at which all derived class
938 destroying/construction has been done. I.e., just before a
939 constructor returns, or before any base class destroying will be done
942 #define cdtor_label cp_function_chain->x_cdtor_label
944 /* When we're processing a member function, current_class_ptr is the
945 PARM_DECL for the `this' pointer. The current_class_ref is an
946 expression for `*this'. */
948 #define current_class_ptr \
949 (cfun ? cp_function_chain->x_current_class_ptr : NULL_TREE)
950 #define current_class_ref \
951 (cfun ? cp_function_chain->x_current_class_ref : NULL_TREE)
953 /* The EH_SPEC_BLOCK for the exception-specifiers for the current
956 #define current_eh_spec_block cp_function_chain->x_eh_spec_block
958 /* The `__in_chrg' parameter for the current function. Only used for
959 constructors and destructors. */
961 #define current_in_charge_parm cp_function_chain->x_in_charge_parm
963 /* The `__vtt_parm' parameter for the current function. Only used for
964 constructors and destructors. */
966 #define current_vtt_parm cp_function_chain->x_vtt_parm
968 /* Set to 0 at beginning of a function definition, set to 1 if
969 a return statement that specifies a return value is seen. */
971 #define current_function_returns_value cp_function_chain->returns_value
973 /* Set to 0 at beginning of a function definition, set to 1 if
974 a return statement with no argument is seen. */
976 #define current_function_returns_null cp_function_chain->returns_null
978 /* Set to 0 at beginning of a function definition, set to 1 if
979 a call to a noreturn function is seen. */
981 #define current_function_returns_abnormally \
982 cp_function_chain->returns_abnormally
984 /* Nonzero if we are processing a base initializer. Zero elsewhere. */
985 #define in_base_initializer cp_function_chain->in_base_initializer
987 #define in_function_try_handler cp_function_chain->in_function_try_handler
989 /* Expression always returned from function, or error_mark_node
990 otherwise, for use by the automatic named return value optimization. */
992 #define current_function_return_value \
993 (cp_function_chain->x_return_value)
995 /* True if NAME is the IDENTIFIER_NODE for an overloaded "operator
996 new" or "operator delete". */
997 #define NEW_DELETE_OPNAME_P(NAME) \
998 ((NAME) == ansi_opname (NEW_EXPR) \
999 || (NAME) == ansi_opname (VEC_NEW_EXPR) \
1000 || (NAME) == ansi_opname (DELETE_EXPR) \
1001 || (NAME) == ansi_opname (VEC_DELETE_EXPR))
1003 #define ansi_opname(CODE) \
1004 (operator_name_info[(int) (CODE)].identifier)
1005 #define ansi_assopname(CODE) \
1006 (assignment_operator_name_info[(int) (CODE)].identifier)
1008 /* True if NODE is an erroneous expression. */
1010 #define error_operand_p(NODE) \
1011 ((NODE) == error_mark_node \
1012 || ((NODE) && TREE_TYPE ((NODE)) == error_mark_node))
1014 /* TRUE if a tree code represents a statement. */
1015 extern bool statement_code_p[MAX_TREE_CODES];
1017 #define STATEMENT_CODE_P(CODE) statement_code_p[(int) (CODE)]
1019 enum languages { lang_c, lang_cplusplus, lang_java };
1021 /* Macros to make error reporting functions' lives easier. */
1022 #define TYPE_IDENTIFIER(NODE) (DECL_NAME (TYPE_NAME (NODE)))
1023 #define TYPE_LINKAGE_IDENTIFIER(NODE) \
1024 (TYPE_IDENTIFIER (TYPE_MAIN_VARIANT (NODE)))
1025 #define TYPE_NAME_STRING(NODE) (IDENTIFIER_POINTER (TYPE_IDENTIFIER (NODE)))
1026 #define TYPE_NAME_LENGTH(NODE) (IDENTIFIER_LENGTH (TYPE_IDENTIFIER (NODE)))
1028 /* Nonzero if NODE has no name for linkage purposes. */
1029 #define TYPE_ANONYMOUS_P(NODE) \
1030 (TAGGED_TYPE_P (NODE) && ANON_AGGRNAME_P (TYPE_LINKAGE_IDENTIFIER (NODE)))
1032 /* The _DECL for this _TYPE. */
1033 #define TYPE_MAIN_DECL(NODE) (TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE)))
1035 /* Nonzero if T is a class (or struct or union) type. Also nonzero
1036 for template type parameters, typename types, and instantiated
1037 template template parameters. Keep these checks in ascending code
1039 #define MAYBE_CLASS_TYPE_P(T) \
1040 (TREE_CODE (T) == TEMPLATE_TYPE_PARM \
1041 || TREE_CODE (T) == TYPENAME_TYPE \
1042 || TREE_CODE (T) == TYPEOF_TYPE \
1043 || TREE_CODE (T) == BOUND_TEMPLATE_TEMPLATE_PARM \
1044 || TREE_CODE (T) == DECLTYPE_TYPE \
1045 || CLASS_TYPE_P (T))
1047 /* Set CLASS_TYPE_P for T to VAL. T must be a class, struct, or
1049 #define SET_CLASS_TYPE_P(T, VAL) \
1050 (TYPE_LANG_FLAG_5 (T) = (VAL))
1052 /* Nonzero if T is a class type. Zero for template type parameters,
1053 typename types, and so forth. */
1054 #define CLASS_TYPE_P(T) \
1055 (RECORD_OR_UNION_CODE_P (TREE_CODE (T)) && TYPE_LANG_FLAG_5 (T))
1057 /* Nonzero if T is a class type but not an union. */
1058 #define NON_UNION_CLASS_TYPE_P(T) \
1059 (CLASS_TYPE_P (T) && TREE_CODE (T) != UNION_TYPE)
1061 /* Keep these checks in ascending code order. */
1062 #define RECORD_OR_UNION_CODE_P(T) \
1063 ((T) == RECORD_TYPE || (T) == UNION_TYPE)
1064 #define TAGGED_TYPE_P(T) \
1065 (CLASS_TYPE_P (T) || TREE_CODE (T) == ENUMERAL_TYPE)
1066 #define IS_OVERLOAD_TYPE(T) TAGGED_TYPE_P (T)
1068 /* True if this a "Java" type, defined in 'extern "Java"'. */
1069 #define TYPE_FOR_JAVA(NODE) TYPE_LANG_FLAG_3 (NODE)
1071 /* True if this type is dependent. This predicate is only valid if
1072 TYPE_DEPENDENT_P_VALID is true. */
1073 #define TYPE_DEPENDENT_P(NODE) TYPE_LANG_FLAG_0 (NODE)
1075 /* True if dependent_type_p has been called for this type, with the
1076 result that TYPE_DEPENDENT_P is valid. */
1077 #define TYPE_DEPENDENT_P_VALID(NODE) TYPE_LANG_FLAG_6(NODE)
1079 /* Nonzero if this type is const-qualified. */
1080 #define CP_TYPE_CONST_P(NODE) \
1081 ((cp_type_quals (NODE) & TYPE_QUAL_CONST) != 0)
1083 /* Nonzero if this type is volatile-qualified. */
1084 #define CP_TYPE_VOLATILE_P(NODE) \
1085 ((cp_type_quals (NODE) & TYPE_QUAL_VOLATILE) != 0)
1087 /* Nonzero if this type is restrict-qualified. */
1088 #define CP_TYPE_RESTRICT_P(NODE) \
1089 ((cp_type_quals (NODE) & TYPE_QUAL_RESTRICT) != 0)
1091 /* Nonzero if this type is const-qualified, but not
1092 volatile-qualified. Other qualifiers are ignored. This macro is
1093 used to test whether or not it is OK to bind an rvalue to a
1095 #define CP_TYPE_CONST_NON_VOLATILE_P(NODE) \
1096 ((cp_type_quals (NODE) & (TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE)) \
1099 #define FUNCTION_ARG_CHAIN(NODE) \
1100 TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (NODE)))
1102 /* Given a FUNCTION_DECL, returns the first TREE_LIST out of TYPE_ARG_TYPES
1103 which refers to a user-written parameter. */
1104 #define FUNCTION_FIRST_USER_PARMTYPE(NODE) \
1105 skip_artificial_parms_for ((NODE), TYPE_ARG_TYPES (TREE_TYPE (NODE)))
1107 /* Similarly, but for DECL_ARGUMENTS. */
1108 #define FUNCTION_FIRST_USER_PARM(NODE) \
1109 skip_artificial_parms_for ((NODE), DECL_ARGUMENTS (NODE))
1111 /* Nonzero iff TYPE is derived from PARENT. Ignores accessibility and
1112 ambiguity issues. */
1113 #define DERIVED_FROM_P(PARENT, TYPE) \
1114 (lookup_base ((TYPE), (PARENT), ba_any, NULL) != NULL_TREE)
1115 /* Nonzero iff TYPE is uniquely derived from PARENT. Ignores
1117 #define UNIQUELY_DERIVED_FROM_P(PARENT, TYPE) \
1118 (lookup_base ((TYPE), (PARENT), ba_unique | ba_quiet, NULL) != NULL_TREE)
1119 /* Nonzero iff TYPE is publicly & uniquely derived from PARENT. */
1120 #define PUBLICLY_UNIQUELY_DERIVED_P(PARENT, TYPE) \
1121 (lookup_base ((TYPE), (PARENT), ba_ignore_scope | ba_check | ba_quiet, \
1124 /* Gives the visibility specification for a class type. */
1125 #define CLASSTYPE_VISIBILITY(TYPE) \
1126 DECL_VISIBILITY (TYPE_NAME (TYPE))
1127 #define CLASSTYPE_VISIBILITY_SPECIFIED(TYPE) \
1128 DECL_VISIBILITY_SPECIFIED (TYPE_NAME (TYPE))
1130 typedef struct GTY (()) tree_pair_s {
1134 typedef tree_pair_s *tree_pair_p;
1135 DEF_VEC_O (tree_pair_s);
1136 DEF_VEC_ALLOC_O (tree_pair_s,gc);
1138 /* This is a few header flags for 'struct lang_type'. Actually,
1139 all but the first are used only for lang_type_class; they
1140 are put in this structure to save space. */
1141 struct GTY(()) lang_type_header {
1142 BOOL_BITFIELD is_lang_type_class : 1;
1144 BOOL_BITFIELD has_type_conversion : 1;
1145 BOOL_BITFIELD has_init_ref : 1;
1146 BOOL_BITFIELD has_default_ctor : 1;
1147 BOOL_BITFIELD const_needs_init : 1;
1148 BOOL_BITFIELD ref_needs_init : 1;
1149 BOOL_BITFIELD has_const_assign_ref : 1;
1151 BOOL_BITFIELD spare : 1;
1154 /* This structure provides additional information above and beyond
1155 what is provide in the ordinary tree_type. In the past, we used it
1156 for the types of class types, template parameters types, typename
1157 types, and so forth. However, there can be many (tens to hundreds
1158 of thousands) of template parameter types in a compilation, and
1159 there's no need for this additional information in that case.
1160 Therefore, we now use this data structure only for class types.
1162 In the past, it was thought that there would be relatively few
1163 class types. However, in the presence of heavy use of templates,
1164 many (i.e., thousands) of classes can easily be generated.
1165 Therefore, we should endeavor to keep the size of this structure to
1167 struct GTY(()) lang_type_class {
1168 struct lang_type_header h;
1170 unsigned char align;
1172 unsigned has_mutable : 1;
1173 unsigned com_interface : 1;
1174 unsigned non_pod_class : 1;
1175 unsigned nearly_empty_p : 1;
1176 unsigned user_align : 1;
1177 unsigned has_assign_ref : 1;
1178 unsigned has_new : 1;
1179 unsigned has_array_new : 1;
1181 unsigned gets_delete : 2;
1182 unsigned interface_only : 1;
1183 unsigned interface_unknown : 1;
1184 unsigned contains_empty_class_p : 1;
1185 unsigned anon_aggr : 1;
1186 unsigned non_zero_init : 1;
1187 unsigned empty_p : 1;
1189 unsigned vec_new_uses_cookie : 1;
1190 unsigned declared_class : 1;
1191 unsigned diamond_shaped : 1;
1192 unsigned repeated_base : 1;
1193 unsigned being_defined : 1;
1194 unsigned java_interface : 1;
1195 unsigned debug_requested : 1;
1196 unsigned fields_readonly : 1;
1198 unsigned use_template : 2;
1199 unsigned ptrmemfunc_flag : 1;
1200 unsigned was_anonymous : 1;
1201 unsigned lazy_default_ctor : 1;
1202 unsigned lazy_copy_ctor : 1;
1203 unsigned lazy_assignment_op : 1;
1204 unsigned lazy_destructor : 1;
1206 unsigned has_const_init_ref : 1;
1207 unsigned has_complex_init_ref : 1;
1208 unsigned has_complex_assign_ref : 1;
1209 unsigned non_aggregate : 1;
1210 unsigned has_complex_dflt : 1;
1211 unsigned has_list_ctor : 1;
1212 unsigned non_std_layout : 1;
1213 unsigned lazy_move_ctor : 1;
1215 /* When adding a flag here, consider whether or not it ought to
1216 apply to a template instance if it applies to the template. If
1217 so, make sure to copy it in instantiate_class_template! */
1219 /* There are some bits left to fill out a 32-bit word. Keep track
1220 of this by updating the size of this bitfield whenever you add or
1225 VEC(tree_pair_s,gc) *vcall_indices;
1228 VEC(tree,gc) *vbases;
1229 binding_table nested_udts;
1231 VEC(tree,gc) *pure_virtuals;
1232 tree friend_classes;
1233 VEC(tree,gc) * GTY((reorder ("resort_type_method_vec"))) methods;
1237 tree befriending_classes;
1238 /* In a RECORD_TYPE, information specific to Objective-C++, such
1239 as a list of adopted protocols or a pointer to a corresponding
1240 @interface. See objc/objc-act.h for details. */
1242 /* sorted_fields is sorted based on a pointer, so we need to be able
1243 to resort it if pointers get rearranged. */
1244 struct sorted_fields_type * GTY ((reorder ("resort_sorted_fields")))
1246 /* FIXME reuse another field? */
1250 struct GTY(()) lang_type_ptrmem {
1251 struct lang_type_header h;
1255 struct GTY(()) lang_type {
1258 struct lang_type_header GTY((skip (""))) h;
1259 struct lang_type_class GTY((tag ("1"))) c;
1260 struct lang_type_ptrmem GTY((tag ("0"))) ptrmem;
1261 } GTY((desc ("%h.h.is_lang_type_class"))) u;
1264 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1266 #define LANG_TYPE_CLASS_CHECK(NODE) __extension__ \
1267 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1268 if (! lt->u.h.is_lang_type_class) \
1269 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1272 #define LANG_TYPE_PTRMEM_CHECK(NODE) __extension__ \
1273 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1274 if (lt->u.h.is_lang_type_class) \
1275 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1280 #define LANG_TYPE_CLASS_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.c)
1281 #define LANG_TYPE_PTRMEM_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.ptrmem)
1283 #endif /* ENABLE_TREE_CHECKING */
1285 /* Nonzero for _CLASSTYPE means that operator delete is defined. */
1286 #define TYPE_GETS_DELETE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->gets_delete)
1287 #define TYPE_GETS_REG_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 1)
1289 /* Nonzero if `new NODE[x]' should cause the allocation of extra
1290 storage to indicate how many array elements are in use. */
1291 #define TYPE_VEC_NEW_USES_COOKIE(NODE) \
1292 (CLASS_TYPE_P (NODE) \
1293 && LANG_TYPE_CLASS_CHECK (NODE)->vec_new_uses_cookie)
1295 /* Nonzero means that this _CLASSTYPE node defines ways of converting
1296 itself to other types. */
1297 #define TYPE_HAS_CONVERSION(NODE) \
1298 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_type_conversion)
1300 /* Nonzero means that NODE (a class type) has a default constructor --
1301 but that it has not yet been declared. */
1302 #define CLASSTYPE_LAZY_DEFAULT_CTOR(NODE) \
1303 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_default_ctor)
1305 /* Nonzero means that NODE (a class type) has a copy constructor --
1306 but that it has not yet been declared. */
1307 #define CLASSTYPE_LAZY_COPY_CTOR(NODE) \
1308 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_ctor)
1310 /* Nonzero means that NODE (a class type) has a move constructor --
1311 but that it has not yet been declared. */
1312 #define CLASSTYPE_LAZY_MOVE_CTOR(NODE) \
1313 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_move_ctor)
1315 /* Nonzero means that NODE (a class type) has an assignment operator
1316 -- but that it has not yet been declared. */
1317 #define CLASSTYPE_LAZY_ASSIGNMENT_OP(NODE) \
1318 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_assignment_op)
1320 /* Nonzero means that NODE (a class type) has a destructor -- but that
1321 it has not yet been declared. */
1322 #define CLASSTYPE_LAZY_DESTRUCTOR(NODE) \
1323 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_destructor)
1325 /* Nonzero means that this _CLASSTYPE node overloads operator=(X&). */
1326 #define TYPE_HAS_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_assign_ref)
1328 /* True iff the class type NODE has an "operator =" whose parameter
1329 has a parameter of type "const X&". */
1330 #define TYPE_HAS_CONST_ASSIGN_REF(NODE) \
1331 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_const_assign_ref)
1333 /* Nonzero means that this _CLASSTYPE node has an X(X&) constructor. */
1334 #define TYPE_HAS_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->h.has_init_ref)
1335 #define TYPE_HAS_CONST_INIT_REF(NODE) \
1336 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_init_ref)
1338 /* Nonzero if this class has an X(initializer_list<T>) constructor. */
1339 #define TYPE_HAS_LIST_CTOR(NODE) \
1340 (LANG_TYPE_CLASS_CHECK (NODE)->has_list_ctor)
1342 /* Nonzero if this class defines an overloaded operator new. (An
1343 operator new [] doesn't count.) */
1344 #define TYPE_HAS_NEW_OPERATOR(NODE) \
1345 (LANG_TYPE_CLASS_CHECK (NODE)->has_new)
1347 /* Nonzero if this class defines an overloaded operator new[]. */
1348 #define TYPE_HAS_ARRAY_NEW_OPERATOR(NODE) \
1349 (LANG_TYPE_CLASS_CHECK (NODE)->has_array_new)
1351 /* Nonzero means that this type is being defined. I.e., the left brace
1352 starting the definition of this type has been seen. */
1353 #define TYPE_BEING_DEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->being_defined)
1355 /* Mark bits for repeated base checks. */
1356 #define TYPE_MARKED_P(NODE) TREE_LANG_FLAG_6 (TYPE_CHECK (NODE))
1358 /* Nonzero if the class NODE has multiple paths to the same (virtual)
1360 #define CLASSTYPE_DIAMOND_SHAPED_P(NODE) \
1361 (LANG_TYPE_CLASS_CHECK(NODE)->diamond_shaped)
1363 /* Nonzero if the class NODE has multiple instances of the same base
1365 #define CLASSTYPE_REPEATED_BASE_P(NODE) \
1366 (LANG_TYPE_CLASS_CHECK(NODE)->repeated_base)
1368 /* The member function with which the vtable will be emitted:
1369 the first noninline non-pure-virtual member function. NULL_TREE
1370 if there is no key function or if this is a class template */
1371 #define CLASSTYPE_KEY_METHOD(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->key_method)
1373 /* Vector member functions defined in this class. Each element is
1374 either a FUNCTION_DECL, a TEMPLATE_DECL, or an OVERLOAD. All
1375 functions with the same name end up in the same slot. The first
1376 two elements are for constructors, and destructors, respectively.
1377 All template conversion operators to innermost template dependent
1378 types are overloaded on the next slot, if they exist. Note, the
1379 names for these functions will not all be the same. The
1380 non-template conversion operators & templated conversions to
1381 non-innermost template types are next, followed by ordinary member
1382 functions. There may be empty entries at the end of the vector.
1383 The conversion operators are unsorted. The ordinary member
1384 functions are sorted, once the class is complete. */
1385 #define CLASSTYPE_METHOD_VEC(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->methods)
1387 /* For class templates, this is a TREE_LIST of all member data,
1388 functions, types, and friends in the order of declaration.
1389 The TREE_PURPOSE of each TREE_LIST is NULL_TREE for a friend,
1390 and the RECORD_TYPE for the class template otherwise. */
1391 #define CLASSTYPE_DECL_LIST(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->decl_list)
1393 /* The slot in the CLASSTYPE_METHOD_VEC where constructors go. */
1394 #define CLASSTYPE_CONSTRUCTOR_SLOT 0
1396 /* The slot in the CLASSTYPE_METHOD_VEC where destructors go. */
1397 #define CLASSTYPE_DESTRUCTOR_SLOT 1
1399 /* The first slot in the CLASSTYPE_METHOD_VEC where conversion
1400 operators can appear. */
1401 #define CLASSTYPE_FIRST_CONVERSION_SLOT 2
1403 /* A FUNCTION_DECL or OVERLOAD for the constructors for NODE. These
1404 are the constructors that take an in-charge parameter. */
1405 #define CLASSTYPE_CONSTRUCTORS(NODE) \
1406 (VEC_index (tree, CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_CONSTRUCTOR_SLOT))
1408 /* A FUNCTION_DECL for the destructor for NODE. These are the
1409 destructors that take an in-charge parameter. If
1410 CLASSTYPE_LAZY_DESTRUCTOR is true, then this entry will be NULL
1411 until the destructor is created with lazily_declare_fn. */
1412 #define CLASSTYPE_DESTRUCTORS(NODE) \
1413 (CLASSTYPE_METHOD_VEC (NODE) \
1414 ? VEC_index (tree, CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_DESTRUCTOR_SLOT) \
1417 /* A dictionary of the nested user-defined-types (class-types, or enums)
1418 found within this class. This table includes nested member class
1420 #define CLASSTYPE_NESTED_UTDS(NODE) \
1421 (LANG_TYPE_CLASS_CHECK (NODE)->nested_udts)
1423 /* Nonzero if NODE has a primary base class, i.e., a base class with
1424 which it shares the virtual function table pointer. */
1425 #define CLASSTYPE_HAS_PRIMARY_BASE_P(NODE) \
1426 (CLASSTYPE_PRIMARY_BINFO (NODE) != NULL_TREE)
1428 /* If non-NULL, this is the binfo for the primary base class, i.e.,
1429 the base class which contains the virtual function table pointer
1431 #define CLASSTYPE_PRIMARY_BINFO(NODE) \
1432 (LANG_TYPE_CLASS_CHECK (NODE)->primary_base)
1434 /* A vector of BINFOs for the direct and indirect virtual base classes
1435 that this type uses in a post-order depth-first left-to-right
1436 order. (In other words, these bases appear in the order that they
1437 should be initialized.) */
1438 #define CLASSTYPE_VBASECLASSES(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->vbases)
1440 /* The type corresponding to NODE when NODE is used as a base class,
1441 i.e., NODE without virtual base classes. */
1443 #define CLASSTYPE_AS_BASE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->as_base)
1445 /* True iff NODE is the CLASSTYPE_AS_BASE version of some type. */
1447 #define IS_FAKE_BASE_TYPE(NODE) \
1448 (TREE_CODE (NODE) == RECORD_TYPE \
1449 && TYPE_CONTEXT (NODE) && CLASS_TYPE_P (TYPE_CONTEXT (NODE)) \
1450 && CLASSTYPE_AS_BASE (TYPE_CONTEXT (NODE)) == (NODE))
1452 /* These are the size and alignment of the type without its virtual
1453 base classes, for when we use this type as a base itself. */
1454 #define CLASSTYPE_SIZE(NODE) TYPE_SIZE (CLASSTYPE_AS_BASE (NODE))
1455 #define CLASSTYPE_SIZE_UNIT(NODE) TYPE_SIZE_UNIT (CLASSTYPE_AS_BASE (NODE))
1456 #define CLASSTYPE_ALIGN(NODE) TYPE_ALIGN (CLASSTYPE_AS_BASE (NODE))
1457 #define CLASSTYPE_USER_ALIGN(NODE) TYPE_USER_ALIGN (CLASSTYPE_AS_BASE (NODE))
1459 /* The alignment of NODE, without its virtual bases, in bytes. */
1460 #define CLASSTYPE_ALIGN_UNIT(NODE) \
1461 (CLASSTYPE_ALIGN (NODE) / BITS_PER_UNIT)
1463 /* True if this a Java interface type, declared with
1464 '__attribute__ ((java_interface))'. */
1465 #define TYPE_JAVA_INTERFACE(NODE) \
1466 (LANG_TYPE_CLASS_CHECK (NODE)->java_interface)
1468 /* A VEC(tree) of virtual functions which cannot be inherited by
1469 derived classes. When deriving from this type, the derived
1470 class must provide its own definition for each of these functions. */
1471 #define CLASSTYPE_PURE_VIRTUALS(NODE) \
1472 (LANG_TYPE_CLASS_CHECK (NODE)->pure_virtuals)
1474 /* Nonzero means that this type has an X() constructor. */
1475 #define TYPE_HAS_DEFAULT_CONSTRUCTOR(NODE) \
1476 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_default_ctor)
1478 /* Nonzero means that this type contains a mutable member. */
1479 #define CLASSTYPE_HAS_MUTABLE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_mutable)
1480 #define TYPE_HAS_MUTABLE_P(NODE) (cp_has_mutable_p (NODE))
1482 /* Nonzero means that this class type is not POD for the purpose of layout
1483 (as defined in the ABI). This is different from the language's POD. */
1484 #define CLASSTYPE_NON_LAYOUT_POD_P(NODE) \
1485 (LANG_TYPE_CLASS_CHECK (NODE)->non_pod_class)
1487 /* Nonzero means that this class type is a non-standard-layout class. */
1488 #define CLASSTYPE_NON_STD_LAYOUT(NODE) \
1489 (LANG_TYPE_CLASS_CHECK (NODE)->non_std_layout)
1491 /* Nonzero means that this class contains pod types whose default
1492 initialization is not a zero initialization (namely, pointers to
1494 #define CLASSTYPE_NON_ZERO_INIT_P(NODE) \
1495 (LANG_TYPE_CLASS_CHECK (NODE)->non_zero_init)
1497 /* Nonzero if this class is "empty" in the sense of the C++ ABI. */
1498 #define CLASSTYPE_EMPTY_P(NODE) \
1499 (LANG_TYPE_CLASS_CHECK (NODE)->empty_p)
1501 /* Nonzero if this class is "nearly empty", i.e., contains only a
1502 virtual function table pointer. */
1503 #define CLASSTYPE_NEARLY_EMPTY_P(NODE) \
1504 (LANG_TYPE_CLASS_CHECK (NODE)->nearly_empty_p)
1506 /* Nonzero if this class contains an empty subobject. */
1507 #define CLASSTYPE_CONTAINS_EMPTY_CLASS_P(NODE) \
1508 (LANG_TYPE_CLASS_CHECK (NODE)->contains_empty_class_p)
1510 /* A list of class types of which this type is a friend. The
1511 TREE_VALUE is normally a TYPE, but will be a TEMPLATE_DECL in the
1512 case of a template friend. */
1513 #define CLASSTYPE_FRIEND_CLASSES(NODE) \
1514 (LANG_TYPE_CLASS_CHECK (NODE)->friend_classes)
1516 /* A list of the classes which grant friendship to this class. */
1517 #define CLASSTYPE_BEFRIENDING_CLASSES(NODE) \
1518 (LANG_TYPE_CLASS_CHECK (NODE)->befriending_classes)
1520 /* The associated LAMBDA_EXPR that made this class. */
1521 #define CLASSTYPE_LAMBDA_EXPR(NODE) \
1522 (LANG_TYPE_CLASS_CHECK (NODE)->lambda_expr)
1523 /* The extra mangling scope for this closure type. */
1524 #define LAMBDA_TYPE_EXTRA_SCOPE(NODE) \
1525 (LAMBDA_EXPR_EXTRA_SCOPE (CLASSTYPE_LAMBDA_EXPR (NODE)))
1527 /* Say whether this node was declared as a "class" or a "struct". */
1528 #define CLASSTYPE_DECLARED_CLASS(NODE) \
1529 (LANG_TYPE_CLASS_CHECK (NODE)->declared_class)
1531 /* Nonzero if this class has const members
1532 which have no specified initialization. */
1533 #define CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE) \
1534 (TYPE_LANG_SPECIFIC (NODE) \
1535 ? LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init : 0)
1536 #define SET_CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE, VALUE) \
1537 (LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init = (VALUE))
1539 /* Nonzero if this class has ref members
1540 which have no specified initialization. */
1541 #define CLASSTYPE_REF_FIELDS_NEED_INIT(NODE) \
1542 (TYPE_LANG_SPECIFIC (NODE) \
1543 ? LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init : 0)
1544 #define SET_CLASSTYPE_REF_FIELDS_NEED_INIT(NODE, VALUE) \
1545 (LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init = (VALUE))
1547 /* Nonzero if this class is included from a header file which employs
1548 `#pragma interface', and it is not included in its implementation file. */
1549 #define CLASSTYPE_INTERFACE_ONLY(NODE) \
1550 (LANG_TYPE_CLASS_CHECK (NODE)->interface_only)
1552 /* True if we have already determined whether or not vtables, VTTs,
1553 typeinfo, and other similar per-class data should be emitted in
1554 this translation unit. This flag does not indicate whether or not
1555 these items should be emitted; it only indicates that we know one
1556 way or the other. */
1557 #define CLASSTYPE_INTERFACE_KNOWN(NODE) \
1558 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown == 0)
1559 /* The opposite of CLASSTYPE_INTERFACE_KNOWN. */
1560 #define CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1561 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown)
1563 #define SET_CLASSTYPE_INTERFACE_UNKNOWN_X(NODE,X) \
1564 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = !!(X))
1565 #define SET_CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1566 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 1)
1567 #define SET_CLASSTYPE_INTERFACE_KNOWN(NODE) \
1568 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 0)
1570 /* Nonzero if a _DECL node requires us to output debug info for this class. */
1571 #define CLASSTYPE_DEBUG_REQUESTED(NODE) \
1572 (LANG_TYPE_CLASS_CHECK (NODE)->debug_requested)
1574 /* Additional macros for inheritance information. */
1576 /* Nonzero means that this class is on a path leading to a new vtable. */
1577 #define BINFO_VTABLE_PATH_MARKED(NODE) BINFO_FLAG_1 (NODE)
1579 /* Nonzero means B (a BINFO) has its own vtable. Any copies will not
1580 have this flag set. */
1581 #define BINFO_NEW_VTABLE_MARKED(B) (BINFO_FLAG_2 (B))
1583 /* Compare a BINFO_TYPE with another type for equality. For a binfo,
1584 this is functionally equivalent to using same_type_p, but
1585 measurably faster. At least one of the arguments must be a
1586 BINFO_TYPE. The other can be a BINFO_TYPE or a regular type. If
1587 BINFO_TYPE(T) ever stops being the main variant of the class the
1588 binfo is for, this macro must change. */
1589 #define SAME_BINFO_TYPE_P(A, B) ((A) == (B))
1591 /* Any subobject that needs a new vtable must have a vptr and must not
1592 be a non-virtual primary base (since it would then use the vtable from a
1593 derived class and never become non-primary.) */
1594 #define SET_BINFO_NEW_VTABLE_MARKED(B) \
1595 (BINFO_NEW_VTABLE_MARKED (B) = 1, \
1596 gcc_assert (!BINFO_PRIMARY_P (B) || BINFO_VIRTUAL_P (B)), \
1597 gcc_assert (TYPE_VFIELD (BINFO_TYPE (B))))
1599 /* Nonzero if this binfo is for a dependent base - one that should not
1601 #define BINFO_DEPENDENT_BASE_P(NODE) BINFO_FLAG_3 (NODE)
1603 /* Nonzero if this binfo has lost its primary base binfo (because that
1604 is a nearly-empty virtual base that has been taken by some other
1605 base in the complete hierarchy. */
1606 #define BINFO_LOST_PRIMARY_P(NODE) BINFO_FLAG_4 (NODE)
1608 /* Nonzero if this BINFO is a primary base class. */
1609 #define BINFO_PRIMARY_P(NODE) BINFO_FLAG_5(NODE)
1611 /* Used by various search routines. */
1612 #define IDENTIFIER_MARKED(NODE) TREE_LANG_FLAG_0 (NODE)
1614 /* A VEC(tree_pair_s) of the vcall indices associated with the class
1615 NODE. The PURPOSE of each element is a FUNCTION_DECL for a virtual
1616 function. The VALUE is the index into the virtual table where the
1617 vcall offset for that function is stored, when NODE is a virtual
1619 #define CLASSTYPE_VCALL_INDICES(NODE) \
1620 (LANG_TYPE_CLASS_CHECK (NODE)->vcall_indices)
1622 /* The various vtables for the class NODE. The primary vtable will be
1623 first, followed by the construction vtables and VTT, if any. */
1624 #define CLASSTYPE_VTABLES(NODE) \
1625 (LANG_TYPE_CLASS_CHECK (NODE)->vtables)
1627 /* The std::type_info variable representing this class, or NULL if no
1628 such variable has been created. This field is only set for the
1629 TYPE_MAIN_VARIANT of the class. */
1630 #define CLASSTYPE_TYPEINFO_VAR(NODE) \
1631 (LANG_TYPE_CLASS_CHECK (NODE)->typeinfo_var)
1633 /* Accessor macros for the BINFO_VIRTUALS list. */
1635 /* The number of bytes by which to adjust the `this' pointer when
1636 calling this virtual function. Subtract this value from the this
1637 pointer. Always non-NULL, might be constant zero though. */
1638 #define BV_DELTA(NODE) (TREE_PURPOSE (NODE))
1640 /* If non-NULL, the vtable index at which to find the vcall offset
1641 when calling this virtual function. Add the value at that vtable
1642 index to the this pointer. */
1643 #define BV_VCALL_INDEX(NODE) (TREE_TYPE (NODE))
1645 /* The function to call. */
1646 #define BV_FN(NODE) (TREE_VALUE (NODE))
1649 /* For FUNCTION_TYPE or METHOD_TYPE, a list of the exceptions that
1650 this type can raise. Each TREE_VALUE is a _TYPE. The TREE_VALUE
1651 will be NULL_TREE to indicate a throw specification of `()', or
1652 no exceptions allowed. */
1653 #define TYPE_RAISES_EXCEPTIONS(NODE) TYPE_LANG_SLOT_1 (NODE)
1655 /* For FUNCTION_TYPE or METHOD_TYPE, return 1 iff it is declared `throw()'. */
1656 #define TYPE_NOTHROW_P(NODE) \
1657 (TYPE_RAISES_EXCEPTIONS (NODE) \
1658 && TREE_VALUE (TYPE_RAISES_EXCEPTIONS (NODE)) == NULL_TREE)
1660 /* The binding level associated with the namespace. */
1661 #define NAMESPACE_LEVEL(NODE) \
1662 (LANG_DECL_NS_CHECK (NODE)->level)
1664 /* Flags shared by all forms of DECL_LANG_SPECIFIC.
1666 Some of the flags live here only to make lang_decl_min/fn smaller. Do
1667 not make this struct larger than 32 bits; instead, make sel smaller. */
1669 struct GTY(()) lang_decl_base {
1670 unsigned selector : 16; /* Larger than necessary for faster access. */
1671 ENUM_BITFIELD(languages) language : 4;
1672 unsigned use_template : 2;
1673 unsigned not_really_extern : 1; /* var or fn */
1674 unsigned initialized_in_class : 1; /* var or fn */
1675 unsigned repo_available_p : 1; /* var or fn */
1676 unsigned threadprivate_or_deleted_p : 1; /* var or fn */
1677 unsigned anticipated_p : 1; /* fn or type */
1678 unsigned friend_attr : 1; /* fn or type */
1679 unsigned template_conv_p : 1; /* template only? */
1680 unsigned odr_used : 1; /* var or fn */
1685 /* True for DECL codes which have template info and access. */
1686 #define LANG_DECL_HAS_MIN(NODE) \
1687 (TREE_CODE (NODE) == FUNCTION_DECL \
1688 || TREE_CODE (NODE) == FIELD_DECL \
1689 || TREE_CODE (NODE) == VAR_DECL \
1690 || TREE_CODE (NODE) == CONST_DECL \
1691 || TREE_CODE (NODE) == TYPE_DECL \
1692 || TREE_CODE (NODE) == TEMPLATE_DECL \
1693 || TREE_CODE (NODE) == USING_DECL)
1695 /* DECL_LANG_SPECIFIC for the above codes. */
1697 struct GTY(()) lang_decl_min {
1698 struct lang_decl_base base;
1700 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
1702 In a FUNCTION_DECL for which DECL_THUNK_P does not hold,
1703 VAR_DECL, TYPE_DECL, or TEMPLATE_DECL, this is
1704 DECL_TEMPLATE_INFO. */
1707 union lang_decl_u2 {
1708 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
1709 THUNK_VIRTUAL_OFFSET.
1710 Otherwise this is DECL_ACCESS. */
1711 tree GTY ((tag ("0"))) access;
1713 /* For VAR_DECL in function, this is DECL_DISCRIMINATOR. */
1714 int GTY ((tag ("1"))) discriminator;
1715 } GTY ((desc ("%0.u.base.u2sel"))) u2;
1718 /* Additional DECL_LANG_SPECIFIC information for functions. */
1720 struct GTY(()) lang_decl_fn {
1721 struct lang_decl_min min;
1723 /* In an overloaded operator, this is the value of
1724 DECL_OVERLOADED_OPERATOR_P. */
1725 ENUM_BITFIELD (tree_code) operator_code : 16;
1727 unsigned global_ctor_p : 1;
1728 unsigned global_dtor_p : 1;
1729 unsigned constructor_attr : 1;
1730 unsigned destructor_attr : 1;
1731 unsigned assignment_operator_p : 1;
1732 unsigned static_function : 1;
1733 unsigned pure_virtual : 1;
1734 unsigned defaulted_p : 1;
1736 unsigned has_in_charge_parm_p : 1;
1737 unsigned has_vtt_parm_p : 1;
1738 unsigned pending_inline_p : 1;
1739 unsigned nonconverting : 1;
1740 unsigned thunk_p : 1;
1741 unsigned this_thunk_p : 1;
1742 unsigned hidden_friend_p : 1;
1745 /* For a non-thunk function decl, this is a tree list of
1746 friendly classes. For a thunk function decl, it is the
1747 thunked to function decl. */
1748 tree befriending_classes;
1750 /* For a non-virtual FUNCTION_DECL, this is
1751 DECL_FRIEND_CONTEXT. For a virtual FUNCTION_DECL for which
1752 DECL_THIS_THUNK_P does not hold, this is DECL_THUNKS. Both
1753 this pointer and result pointer adjusting thunks are
1754 chained here. This pointer thunks to return pointer thunks
1755 will be chained on the return pointer thunk. */
1760 /* In a non-thunk FUNCTION_DECL or TEMPLATE_DECL, this is
1761 DECL_CLONED_FUNCTION. */
1762 tree GTY ((tag ("0"))) cloned_function;
1764 /* In a FUNCTION_DECL for which THUNK_P holds this is the
1765 THUNK_FIXED_OFFSET. */
1766 HOST_WIDE_INT GTY ((tag ("1"))) fixed_offset;
1767 } GTY ((desc ("%1.thunk_p"))) u5;
1771 struct cp_token_cache * GTY ((tag ("1"))) pending_inline_info;
1772 struct language_function * GTY ((tag ("0")))
1773 saved_language_function;
1774 } GTY ((desc ("%1.pending_inline_p"))) u;
1778 /* DECL_LANG_SPECIFIC for namespaces. */
1780 struct GTY(()) lang_decl_ns {
1781 struct lang_decl_base base;
1782 struct cp_binding_level *level;
1785 /* DECL_LANG_SPECIFIC for parameters. */
1787 struct GTY(()) lang_decl_parm {
1788 struct lang_decl_base base;
1792 /* DECL_LANG_SPECIFIC for all types. It would be nice to just make this a
1793 union rather than a struct containing a union as its only field, but
1794 tree.h declares it as a struct. */
1796 struct GTY(()) lang_decl {
1797 union GTY((desc ("%h.base.selector"))) lang_decl_u {
1798 struct lang_decl_base GTY ((default)) base;
1799 struct lang_decl_min GTY((tag ("0"))) min;
1800 struct lang_decl_fn GTY ((tag ("1"))) fn;
1801 struct lang_decl_ns GTY((tag ("2"))) ns;
1802 struct lang_decl_parm GTY((tag ("3"))) parm;
1806 /* Looks through a template (if present) to find what it declares. */
1807 #define STRIP_TEMPLATE(NODE) \
1808 (TREE_CODE (NODE) == TEMPLATE_DECL ? DECL_TEMPLATE_RESULT (NODE) : NODE)
1810 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1812 #define LANG_DECL_MIN_CHECK(NODE) __extension__ \
1813 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
1814 if (!LANG_DECL_HAS_MIN (NODE)) \
1815 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1818 /* We want to be able to check DECL_CONSTRUCTOR_P and such on a function
1819 template, not just on a FUNCTION_DECL. So when looking for things in
1820 lang_decl_fn, look down through a TEMPLATE_DECL into its result. */
1821 #define LANG_DECL_FN_CHECK(NODE) __extension__ \
1822 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE)); \
1823 if (!DECL_DECLARES_FUNCTION_P (NODE) || lt->u.base.selector != 1) \
1824 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1827 #define LANG_DECL_NS_CHECK(NODE) __extension__ \
1828 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
1829 if (TREE_CODE (NODE) != NAMESPACE_DECL || lt->u.base.selector != 2) \
1830 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1833 #define LANG_DECL_PARM_CHECK(NODE) __extension__ \
1834 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
1835 if (TREE_CODE (NODE) != PARM_DECL) \
1836 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1839 #define LANG_DECL_U2_CHECK(NODE, TF) __extension__ \
1840 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
1841 if (!LANG_DECL_HAS_MIN (NODE) || lt->u.base.u2sel != TF) \
1842 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1847 #define LANG_DECL_MIN_CHECK(NODE) \
1848 (&DECL_LANG_SPECIFIC (NODE)->u.min)
1850 #define LANG_DECL_FN_CHECK(NODE) \
1851 (&DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE))->u.fn)
1853 #define LANG_DECL_NS_CHECK(NODE) \
1854 (&DECL_LANG_SPECIFIC (NODE)->u.ns)
1856 #define LANG_DECL_PARM_CHECK(NODE) \
1857 (&DECL_LANG_SPECIFIC (NODE)->u.parm)
1859 #define LANG_DECL_U2_CHECK(NODE, TF) \
1860 (&DECL_LANG_SPECIFIC (NODE)->u.min.u2)
1862 #endif /* ENABLE_TREE_CHECKING */
1864 /* For a FUNCTION_DECL or a VAR_DECL, the language linkage for the
1865 declaration. Some entities (like a member function in a local
1866 class, or a local variable) do not have linkage at all, and this
1867 macro should not be used in those cases.
1869 Implementation note: A FUNCTION_DECL without DECL_LANG_SPECIFIC was
1870 created by language-independent code, and has C linkage. Most
1871 VAR_DECLs have C++ linkage, and do not have DECL_LANG_SPECIFIC, but
1872 we do create DECL_LANG_SPECIFIC for variables with non-C++ linkage. */
1873 #define DECL_LANGUAGE(NODE) \
1874 (DECL_LANG_SPECIFIC (NODE) \
1875 ? DECL_LANG_SPECIFIC (NODE)->u.base.language \
1876 : (TREE_CODE (NODE) == FUNCTION_DECL \
1877 ? lang_c : lang_cplusplus))
1879 /* Set the language linkage for NODE to LANGUAGE. */
1880 #define SET_DECL_LANGUAGE(NODE, LANGUAGE) \
1881 (DECL_LANG_SPECIFIC (NODE)->u.base.language = (LANGUAGE))
1883 /* For FUNCTION_DECLs: nonzero means that this function is a constructor. */
1884 #define DECL_CONSTRUCTOR_P(NODE) \
1885 (LANG_DECL_FN_CHECK (NODE)->constructor_attr)
1887 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a complete
1889 #define DECL_COMPLETE_CONSTRUCTOR_P(NODE) \
1890 (DECL_CONSTRUCTOR_P (NODE) \
1891 && DECL_NAME (NODE) == complete_ctor_identifier)
1893 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a base
1895 #define DECL_BASE_CONSTRUCTOR_P(NODE) \
1896 (DECL_CONSTRUCTOR_P (NODE) \
1897 && DECL_NAME (NODE) == base_ctor_identifier)
1899 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor, but not either the
1900 specialized in-charge constructor or the specialized not-in-charge
1902 #define DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P(NODE) \
1903 (DECL_DECLARES_FUNCTION_P (NODE) && DECL_CONSTRUCTOR_P (NODE) \
1904 && !DECL_CLONED_FUNCTION_P (NODE))
1906 /* Nonzero if NODE (a FUNCTION_DECL) is a copy constructor. */
1907 #define DECL_COPY_CONSTRUCTOR_P(NODE) \
1908 (DECL_CONSTRUCTOR_P (NODE) && copy_fn_p (NODE) > 0)
1910 /* Nonzero if NODE (a FUNCTION_DECL) is a move constructor. */
1911 #define DECL_MOVE_CONSTRUCTOR_P(NODE) \
1912 (DECL_CONSTRUCTOR_P (NODE) && move_fn_p (NODE))
1914 /* Nonzero if NODE is a destructor. */
1915 #define DECL_DESTRUCTOR_P(NODE) \
1916 (LANG_DECL_FN_CHECK (NODE)->destructor_attr)
1918 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor, but not the
1919 specialized in-charge constructor, in-charge deleting constructor,
1920 or the base destructor. */
1921 #define DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P(NODE) \
1922 (DECL_DECLARES_FUNCTION_P (NODE) && DECL_DESTRUCTOR_P (NODE) \
1923 && !DECL_CLONED_FUNCTION_P (NODE))
1925 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
1927 #define DECL_COMPLETE_DESTRUCTOR_P(NODE) \
1928 (DECL_DESTRUCTOR_P (NODE) \
1929 && DECL_NAME (NODE) == complete_dtor_identifier)
1931 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a base
1933 #define DECL_BASE_DESTRUCTOR_P(NODE) \
1934 (DECL_DESTRUCTOR_P (NODE) \
1935 && DECL_NAME (NODE) == base_dtor_identifier)
1937 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
1938 object that deletes the object after it has been destroyed. */
1939 #define DECL_DELETING_DESTRUCTOR_P(NODE) \
1940 (DECL_DESTRUCTOR_P (NODE) \
1941 && DECL_NAME (NODE) == deleting_dtor_identifier)
1943 /* Nonzero if NODE (a FUNCTION_DECL) is a cloned constructor or
1945 #define DECL_CLONED_FUNCTION_P(NODE) (!!decl_cloned_function_p (NODE, true))
1947 /* If DECL_CLONED_FUNCTION_P holds, this is the function that was
1949 #define DECL_CLONED_FUNCTION(NODE) (*decl_cloned_function_p (NODE, false))
1951 /* Perform an action for each clone of FN, if FN is a function with
1952 clones. This macro should be used like:
1954 FOR_EACH_CLONE (clone, fn)
1958 #define FOR_EACH_CLONE(CLONE, FN) \
1959 if (TREE_CODE (FN) == FUNCTION_DECL \
1960 && (DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (FN) \
1961 || DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (FN))) \
1962 for (CLONE = TREE_CHAIN (FN); \
1963 CLONE && DECL_CLONED_FUNCTION_P (CLONE); \
1964 CLONE = TREE_CHAIN (CLONE))
1966 /* Nonzero if NODE has DECL_DISCRIMINATOR and not DECL_ACCESS. */
1967 #define DECL_DISCRIMINATOR_P(NODE) \
1968 (TREE_CODE (NODE) == VAR_DECL \
1969 && DECL_FUNCTION_SCOPE_P (NODE))
1971 /* Discriminator for name mangling. */
1972 #define DECL_DISCRIMINATOR(NODE) (LANG_DECL_U2_CHECK (NODE, 1)->discriminator)
1974 /* The index of a user-declared parameter in its function, starting at 1.
1975 All artificial parameters will have index 0. */
1976 #define DECL_PARM_INDEX(NODE) \
1977 (LANG_DECL_PARM_CHECK (NODE)->index)
1979 /* Nonzero if the VTT parm has been added to NODE. */
1980 #define DECL_HAS_VTT_PARM_P(NODE) \
1981 (LANG_DECL_FN_CHECK (NODE)->has_vtt_parm_p)
1983 /* Nonzero if NODE is a FUNCTION_DECL for which a VTT parameter is
1985 #define DECL_NEEDS_VTT_PARM_P(NODE) \
1986 (CLASSTYPE_VBASECLASSES (DECL_CONTEXT (NODE)) \
1987 && (DECL_BASE_CONSTRUCTOR_P (NODE) \
1988 || DECL_BASE_DESTRUCTOR_P (NODE)))
1990 /* Nonzero if NODE is a user-defined conversion operator. */
1991 #define DECL_CONV_FN_P(NODE) \
1992 (DECL_NAME (NODE) && IDENTIFIER_TYPENAME_P (DECL_NAME (NODE)))
1994 /* If FN is a conversion operator, the type to which it converts.
1995 Otherwise, NULL_TREE. */
1996 #define DECL_CONV_FN_TYPE(FN) \
1997 (DECL_CONV_FN_P (FN) ? TREE_TYPE (DECL_NAME (FN)) : NULL_TREE)
1999 /* Nonzero if NODE, which is a TEMPLATE_DECL, is a template
2000 conversion operator to a type dependent on the innermost template
2002 #define DECL_TEMPLATE_CONV_FN_P(NODE) \
2003 (DECL_LANG_SPECIFIC (TEMPLATE_DECL_CHECK (NODE))->u.base.template_conv_p)
2005 /* Set the overloaded operator code for NODE to CODE. */
2006 #define SET_OVERLOADED_OPERATOR_CODE(NODE, CODE) \
2007 (LANG_DECL_FN_CHECK (NODE)->operator_code = (CODE))
2009 /* If NODE is an overloaded operator, then this returns the TREE_CODE
2010 associated with the overloaded operator.
2011 DECL_ASSIGNMENT_OPERATOR_P must also be checked to determine
2012 whether or not NODE is an assignment operator. If NODE is not an
2013 overloaded operator, ERROR_MARK is returned. Since the numerical
2014 value of ERROR_MARK is zero, this macro can be used as a predicate
2015 to test whether or not NODE is an overloaded operator. */
2016 #define DECL_OVERLOADED_OPERATOR_P(NODE) \
2017 (IDENTIFIER_OPNAME_P (DECL_NAME (NODE)) \
2018 ? LANG_DECL_FN_CHECK (NODE)->operator_code : ERROR_MARK)
2020 /* Nonzero if NODE is an assignment operator (including += and such). */
2021 #define DECL_ASSIGNMENT_OPERATOR_P(NODE) \
2022 (LANG_DECL_FN_CHECK (NODE)->assignment_operator_p)
2024 /* For FUNCTION_DECLs: nonzero means that this function is a
2025 constructor or a destructor with an extra in-charge parameter to
2026 control whether or not virtual bases are constructed. */
2027 #define DECL_HAS_IN_CHARGE_PARM_P(NODE) \
2028 (LANG_DECL_FN_CHECK (NODE)->has_in_charge_parm_p)
2030 /* Nonzero if DECL is a declaration of __builtin_constant_p. */
2031 #define DECL_IS_BUILTIN_CONSTANT_P(NODE) \
2032 (TREE_CODE (NODE) == FUNCTION_DECL \
2033 && DECL_BUILT_IN_CLASS (NODE) == BUILT_IN_NORMAL \
2034 && DECL_FUNCTION_CODE (NODE) == BUILT_IN_CONSTANT_P)
2036 /* Nonzero for _DECL means that this decl appears in (or will appear
2037 in) as a member in a RECORD_TYPE or UNION_TYPE node. It is also for
2038 detecting circularity in case members are multiply defined. In the
2039 case of a VAR_DECL, it is also used to determine how program storage
2040 should be allocated. */
2041 #define DECL_IN_AGGR_P(NODE) (DECL_LANG_FLAG_3 (NODE))
2043 /* Nonzero for a VAR_DECL means that the variable's initialization (if
2044 any) has been processed. (In general, DECL_INITIALIZED_P is
2045 !DECL_EXTERN, but static data members may be initialized even if
2047 #define DECL_INITIALIZED_P(NODE) \
2048 (TREE_LANG_FLAG_1 (VAR_DECL_CHECK (NODE)))
2050 /* Nonzero for a VAR_DECL iff an explicit initializer was provided. */
2051 #define DECL_NONTRIVIALLY_INITIALIZED_P(NODE) \
2052 (TREE_LANG_FLAG_3 (VAR_DECL_CHECK (NODE)))
2054 /* Nonzero for a VAR_DECL that was initialized with a
2055 constant-expression. */
2056 #define DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P(NODE) \
2057 (TREE_LANG_FLAG_2 (VAR_DECL_CHECK (NODE)))
2059 /* Nonzero for a VAR_DECL that can be used in an integral constant
2064 An integral constant-expression can only involve ... const
2065 variables of static or enumeration types initialized with
2066 constant expressions ...
2068 The standard does not require that the expression be non-volatile.
2069 G++ implements the proposed correction in DR 457. */
2070 #define DECL_INTEGRAL_CONSTANT_VAR_P(NODE) \
2071 (TREE_CODE (NODE) == VAR_DECL \
2072 && CP_TYPE_CONST_NON_VOLATILE_P (TREE_TYPE (NODE)) \
2073 && INTEGRAL_OR_ENUMERATION_TYPE_P (TREE_TYPE (NODE)) \
2074 && DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (NODE))
2076 /* Nonzero if the DECL was initialized in the class definition itself,
2077 rather than outside the class. This is used for both static member
2078 VAR_DECLS, and FUNCTION_DECLS that are defined in the class. */
2079 #define DECL_INITIALIZED_IN_CLASS_P(DECL) \
2080 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \
2081 ->u.base.initialized_in_class)
2083 /* Nonzero if the DECL is used in the sense of 3.2 [basic.def.odr].
2084 Only available for decls with DECL_LANG_SPECIFIC. */
2085 #define DECL_ODR_USED(DECL) \
2086 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \
2089 /* Nonzero for DECL means that this decl is just a friend declaration,
2090 and should not be added to the list of members for this class. */
2091 #define DECL_FRIEND_P(NODE) (DECL_LANG_SPECIFIC (NODE)->u.base.friend_attr)
2093 /* A TREE_LIST of the types which have befriended this FUNCTION_DECL. */
2094 #define DECL_BEFRIENDING_CLASSES(NODE) \
2095 (LANG_DECL_FN_CHECK (NODE)->befriending_classes)
2097 /* Nonzero for FUNCTION_DECL means that this decl is a static
2099 #define DECL_STATIC_FUNCTION_P(NODE) \
2100 (LANG_DECL_FN_CHECK (NODE)->static_function)
2102 /* Nonzero for FUNCTION_DECL means that this decl is a non-static
2104 #define DECL_NONSTATIC_MEMBER_FUNCTION_P(NODE) \
2105 (TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE)
2107 /* Nonzero for FUNCTION_DECL means that this decl is a member function
2108 (static or non-static). */
2109 #define DECL_FUNCTION_MEMBER_P(NODE) \
2110 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) || DECL_STATIC_FUNCTION_P (NODE))
2112 /* Nonzero for FUNCTION_DECL means that this member function
2113 has `this' as const X *const. */
2114 #define DECL_CONST_MEMFUNC_P(NODE) \
2115 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
2116 && CP_TYPE_CONST_P (TREE_TYPE (TREE_VALUE \
2117 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
2119 /* Nonzero for FUNCTION_DECL means that this member function
2120 has `this' as volatile X *const. */
2121 #define DECL_VOLATILE_MEMFUNC_P(NODE) \
2122 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
2123 && CP_TYPE_VOLATILE_P (TREE_TYPE (TREE_VALUE \
2124 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
2126 /* Nonzero for a DECL means that this member is a non-static member. */
2127 #define DECL_NONSTATIC_MEMBER_P(NODE) \
2128 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
2129 || TREE_CODE (NODE) == FIELD_DECL)
2131 /* Nonzero for _DECL means that this member object type
2133 #define DECL_MUTABLE_P(NODE) (DECL_LANG_FLAG_0 (NODE))
2135 /* Nonzero for _DECL means that this constructor or conversion function is
2137 #define DECL_NONCONVERTING_P(NODE) \
2138 (LANG_DECL_FN_CHECK (NODE)->nonconverting)
2140 /* Nonzero for FUNCTION_DECL means that this member function is a pure
2141 virtual function. */
2142 #define DECL_PURE_VIRTUAL_P(NODE) \
2143 (LANG_DECL_FN_CHECK (NODE)->pure_virtual)
2145 /* True (in a FUNCTION_DECL) if NODE is a virtual function that is an
2146 invalid overrider for a function from a base class. Once we have
2147 complained about an invalid overrider we avoid complaining about it
2149 #define DECL_INVALID_OVERRIDER_P(NODE) \
2150 (DECL_LANG_FLAG_4 (NODE))
2152 /* The thunks associated with NODE, a FUNCTION_DECL. */
2153 #define DECL_THUNKS(NODE) \
2154 (LANG_DECL_FN_CHECK (NODE)->context)
2156 /* Nonzero if NODE is a thunk, rather than an ordinary function. */
2157 #define DECL_THUNK_P(NODE) \
2158 (TREE_CODE (NODE) == FUNCTION_DECL \
2159 && DECL_LANG_SPECIFIC (NODE) \
2160 && LANG_DECL_FN_CHECK (NODE)->thunk_p)
2162 /* Set DECL_THUNK_P for node. */
2163 #define SET_DECL_THUNK_P(NODE, THIS_ADJUSTING) \
2164 (LANG_DECL_FN_CHECK (NODE)->thunk_p = 1, \
2165 LANG_DECL_FN_CHECK (NODE)->this_thunk_p = (THIS_ADJUSTING))
2167 /* Nonzero if NODE is a this pointer adjusting thunk. */
2168 #define DECL_THIS_THUNK_P(NODE) \
2169 (DECL_THUNK_P (NODE) && LANG_DECL_FN_CHECK (NODE)->this_thunk_p)
2171 /* Nonzero if NODE is a result pointer adjusting thunk. */
2172 #define DECL_RESULT_THUNK_P(NODE) \
2173 (DECL_THUNK_P (NODE) && !LANG_DECL_FN_CHECK (NODE)->this_thunk_p)
2175 /* Nonzero if NODE is a FUNCTION_DECL, but not a thunk. */
2176 #define DECL_NON_THUNK_FUNCTION_P(NODE) \
2177 (TREE_CODE (NODE) == FUNCTION_DECL && !DECL_THUNK_P (NODE))
2179 /* Nonzero if NODE is `extern "C"'. */
2180 #define DECL_EXTERN_C_P(NODE) \
2181 (DECL_LANGUAGE (NODE) == lang_c)
2183 /* Nonzero if NODE is an `extern "C"' function. */
2184 #define DECL_EXTERN_C_FUNCTION_P(NODE) \
2185 (DECL_NON_THUNK_FUNCTION_P (NODE) && DECL_EXTERN_C_P (NODE))
2187 /* True iff DECL is an entity with vague linkage whose definition is
2188 available in this translation unit. */
2189 #define DECL_REPO_AVAILABLE_P(NODE) \
2190 (DECL_LANG_SPECIFIC (NODE)->u.base.repo_available_p)
2192 /* Nonzero if this DECL is the __PRETTY_FUNCTION__ variable in a
2193 template function. */
2194 #define DECL_PRETTY_FUNCTION_P(NODE) \
2195 (TREE_LANG_FLAG_0 (VAR_DECL_CHECK (NODE)))
2197 /* The _TYPE context in which this _DECL appears. This field holds the
2198 class where a virtual function instance is actually defined. */
2199 #define DECL_CLASS_CONTEXT(NODE) \
2200 (DECL_CLASS_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : NULL_TREE)
2202 /* For a non-member friend function, the class (if any) in which this
2203 friend was defined. For example, given:
2205 struct S { friend void f (); };
2207 the DECL_FRIEND_CONTEXT for `f' will be `S'. */
2208 #define DECL_FRIEND_CONTEXT(NODE) \
2209 ((DECL_DECLARES_FUNCTION_P (NODE) \
2210 && DECL_FRIEND_P (NODE) && !DECL_FUNCTION_MEMBER_P (NODE)) \
2211 ? LANG_DECL_FN_CHECK (NODE)->context \
2214 /* Set the DECL_FRIEND_CONTEXT for NODE to CONTEXT. */
2215 #define SET_DECL_FRIEND_CONTEXT(NODE, CONTEXT) \
2216 (LANG_DECL_FN_CHECK (NODE)->context = (CONTEXT))
2218 /* NULL_TREE in DECL_CONTEXT represents the global namespace. */
2219 #define CP_DECL_CONTEXT(NODE) \
2220 (DECL_CONTEXT (NODE) ? DECL_CONTEXT (NODE) : global_namespace)
2221 #define CP_TYPE_CONTEXT(NODE) \
2222 (TYPE_CONTEXT (NODE) ? TYPE_CONTEXT (NODE) : global_namespace)
2223 #define FROB_CONTEXT(NODE) ((NODE) == global_namespace ? NULL_TREE : (NODE))
2225 /* 1 iff NODE has namespace scope, including the global namespace. */
2226 #define DECL_NAMESPACE_SCOPE_P(NODE) \
2227 (!DECL_TEMPLATE_PARM_P (NODE) \
2228 && TREE_CODE (CP_DECL_CONTEXT (NODE)) == NAMESPACE_DECL)
2230 #define TYPE_NAMESPACE_SCOPE_P(NODE) \
2231 (TREE_CODE (CP_TYPE_CONTEXT (NODE)) == NAMESPACE_DECL)
2233 /* 1 iff NODE is a class member. */
2234 #define DECL_CLASS_SCOPE_P(NODE) \
2235 (DECL_CONTEXT (NODE) && TYPE_P (DECL_CONTEXT (NODE)))
2237 #define TYPE_CLASS_SCOPE_P(NODE) \
2238 (TYPE_CONTEXT (NODE) && TYPE_P (TYPE_CONTEXT (NODE)))
2240 /* 1 iff NODE is function-local. */
2241 #define DECL_FUNCTION_SCOPE_P(NODE) \
2242 (DECL_CONTEXT (NODE) \
2243 && TREE_CODE (DECL_CONTEXT (NODE)) == FUNCTION_DECL)
2245 /* 1 iff VAR_DECL node NODE is a type-info decl. This flag is set for
2246 both the primary typeinfo object and the associated NTBS name. */
2247 #define DECL_TINFO_P(NODE) TREE_LANG_FLAG_4 (VAR_DECL_CHECK (NODE))
2249 /* 1 iff VAR_DECL node NODE is virtual table or VTT. */
2250 #define DECL_VTABLE_OR_VTT_P(NODE) TREE_LANG_FLAG_5 (VAR_DECL_CHECK (NODE))
2252 /* Returns 1 iff VAR_DECL is a construction virtual table.
2253 DECL_VTABLE_OR_VTT_P will be true in this case and must be checked
2254 before using this macro. */
2255 #define DECL_CONSTRUCTION_VTABLE_P(NODE) \
2256 TREE_LANG_FLAG_6 (VAR_DECL_CHECK (NODE))
2258 /* 1 iff NODE is function-local, but for types. */
2259 #define LOCAL_CLASS_P(NODE) \
2260 (decl_function_context (TYPE_MAIN_DECL (NODE)) != NULL_TREE)
2262 /* For a NAMESPACE_DECL: the list of using namespace directives
2263 The PURPOSE is the used namespace, the value is the namespace
2264 that is the common ancestor. */
2265 #define DECL_NAMESPACE_USING(NODE) DECL_VINDEX (NAMESPACE_DECL_CHECK (NODE))
2267 /* In a NAMESPACE_DECL, the DECL_INITIAL is used to record all users
2268 of a namespace, to record the transitive closure of using namespace. */
2269 #define DECL_NAMESPACE_USERS(NODE) DECL_INITIAL (NAMESPACE_DECL_CHECK (NODE))
2271 /* In a NAMESPACE_DECL, the list of namespaces which have associated
2272 themselves with this one. */
2273 #define DECL_NAMESPACE_ASSOCIATIONS(NODE) \
2274 (NAMESPACE_DECL_CHECK (NODE)->decl_non_common.saved_tree)
2276 /* In a NAMESPACE_DECL, points to the original namespace if this is
2277 a namespace alias. */
2278 #define DECL_NAMESPACE_ALIAS(NODE) \
2279 DECL_ABSTRACT_ORIGIN (NAMESPACE_DECL_CHECK (NODE))
2280 #define ORIGINAL_NAMESPACE(NODE) \
2281 (DECL_NAMESPACE_ALIAS (NODE) ? DECL_NAMESPACE_ALIAS (NODE) : (NODE))
2283 /* Nonzero if NODE is the std namespace. */
2284 #define DECL_NAMESPACE_STD_P(NODE) \
2285 (TREE_CODE (NODE) == NAMESPACE_DECL \
2286 && CP_DECL_CONTEXT (NODE) == global_namespace \
2287 && DECL_NAME (NODE) == std_identifier)
2289 /* In a TREE_LIST concatenating using directives, indicate indirect
2291 #define TREE_INDIRECT_USING(NODE) (TREE_LIST_CHECK (NODE)->base.lang_flag_0)
2293 /* In a TREE_LIST in an attribute list, indicates that the attribute
2294 must be applied at instantiation time. */
2295 #define ATTR_IS_DEPENDENT(NODE) (TREE_LIST_CHECK (NODE)->base.lang_flag_0)
2297 extern tree decl_shadowed_for_var_lookup (tree);
2298 extern void decl_shadowed_for_var_insert (tree, tree);
2300 /* Non zero if this is a using decl for a dependent scope. */
2301 #define DECL_DEPENDENT_P(NODE) DECL_LANG_FLAG_0 (USING_DECL_CHECK (NODE))
2303 /* The scope named in a using decl. */
2304 #define USING_DECL_SCOPE(NODE) TREE_TYPE (USING_DECL_CHECK (NODE))
2306 /* The decls named by a using decl. */
2307 #define USING_DECL_DECLS(NODE) DECL_INITIAL (USING_DECL_CHECK (NODE))
2309 /* In a VAR_DECL, true if we have a shadowed local variable
2310 in the shadowed var table for this VAR_DECL. */
2311 #define DECL_HAS_SHADOWED_FOR_VAR_P(NODE) \
2312 (VAR_DECL_CHECK (NODE)->decl_with_vis.shadowed_for_var_p)
2314 /* In a VAR_DECL for a variable declared in a for statement,
2315 this is the shadowed (local) variable. */
2316 #define DECL_SHADOWED_FOR_VAR(NODE) \
2317 (DECL_HAS_SHADOWED_FOR_VAR_P(NODE) ? decl_shadowed_for_var_lookup (NODE) : NULL)
2319 #define SET_DECL_SHADOWED_FOR_VAR(NODE, VAL) \
2320 (decl_shadowed_for_var_insert (NODE, VAL))
2322 /* In a FUNCTION_DECL, this is nonzero if this function was defined in
2323 the class definition. We have saved away the text of the function,
2324 but have not yet processed it. */
2325 #define DECL_PENDING_INLINE_P(NODE) \
2326 (LANG_DECL_FN_CHECK (NODE)->pending_inline_p)
2328 /* If DECL_PENDING_INLINE_P holds, this is the saved text of the
2330 #define DECL_PENDING_INLINE_INFO(NODE) \
2331 (LANG_DECL_FN_CHECK (NODE)->u.pending_inline_info)
2333 /* For a class type: if this structure has many fields, we'll sort them
2334 and put them into a TREE_VEC. */
2335 #define CLASSTYPE_SORTED_FIELDS(NODE) \
2336 (LANG_TYPE_CLASS_CHECK (NODE)->sorted_fields)
2338 /* If non-NULL for a VAR_DECL, FUNCTION_DECL, TYPE_DECL or
2339 TEMPLATE_DECL, the entity is either a template specialization (if
2340 DECL_USE_TEMPLATE is nonzero) or the abstract instance of the
2343 In either case, DECL_TEMPLATE_INFO is a TREE_LIST, whose
2344 TREE_PURPOSE is the TEMPLATE_DECL of which this entity is a
2345 specialization or abstract instance. The TREE_VALUE is the
2346 template arguments used to specialize the template.
2350 template <typename T> struct S { friend void f(T) {} };
2352 In this case, S<int>::f is, from the point of view of the compiler,
2353 an instantiation of a template -- but, from the point of view of
2354 the language, each instantiation of S results in a wholly unrelated
2355 global function f. In this case, DECL_TEMPLATE_INFO for S<int>::f
2356 will be non-NULL, but DECL_USE_TEMPLATE will be zero. */
2357 #define DECL_TEMPLATE_INFO(NODE) \
2358 (DECL_LANG_SPECIFIC (VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK (NODE)) \
2359 ->u.min.template_info)
2361 /* For a VAR_DECL, indicates that the variable is actually a
2362 non-static data member of anonymous union that has been promoted to
2364 #define DECL_ANON_UNION_VAR_P(NODE) \
2365 (DECL_LANG_FLAG_4 (VAR_DECL_CHECK (NODE)))
2367 /* Template information for a RECORD_TYPE or UNION_TYPE. */
2368 #define CLASSTYPE_TEMPLATE_INFO(NODE) \
2369 (LANG_TYPE_CLASS_CHECK (RECORD_OR_UNION_CHECK (NODE))->template_info)
2371 /* Template information for an ENUMERAL_TYPE. Although an enumeration may
2372 not be a primary template, it may be declared within the scope of a
2373 primary template and the enumeration constants may depend on
2374 non-type template parameters. */
2375 #define ENUM_TEMPLATE_INFO(NODE) \
2376 (TYPE_LANG_SLOT_1 (ENUMERAL_TYPE_CHECK (NODE)))
2378 /* Template information for a template template parameter. */
2379 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO(NODE) \
2380 (LANG_TYPE_CLASS_CHECK (BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK (NODE)) \
2383 /* Template information for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2384 #define TYPE_TEMPLATE_INFO(NODE) \
2385 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2386 ? ENUM_TEMPLATE_INFO (NODE) : \
2387 (TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM \
2388 ? TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO (NODE) : \
2389 (TYPE_LANG_SPECIFIC (NODE) \
2390 ? CLASSTYPE_TEMPLATE_INFO (NODE) \
2393 /* Set the template information for an ENUMERAL_, RECORD_, or
2394 UNION_TYPE to VAL. */
2395 #define SET_TYPE_TEMPLATE_INFO(NODE, VAL) \
2396 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2397 ? (ENUM_TEMPLATE_INFO (NODE) = (VAL)) \
2398 : (CLASSTYPE_TEMPLATE_INFO (NODE) = (VAL)))
2400 #define TI_TEMPLATE(NODE) (TREE_PURPOSE (NODE))
2401 #define TI_ARGS(NODE) (TREE_VALUE (NODE))
2402 #define TI_PENDING_TEMPLATE_FLAG(NODE) TREE_LANG_FLAG_1 (NODE)
2403 /* The list of typedefs - used in the template - that need
2404 access checking at template instantiation time. */
2405 #define TI_TYPEDEFS_NEEDING_ACCESS_CHECKING(NODE) (TREE_CHAIN (NODE))
2407 /* We use TREE_VECs to hold template arguments. If there is only one
2408 level of template arguments, then the TREE_VEC contains the
2409 arguments directly. If there is more than one level of template
2410 arguments, then each entry in the TREE_VEC is itself a TREE_VEC,
2411 containing the template arguments for a single level. The first
2412 entry in the outer TREE_VEC is the outermost level of template
2413 parameters; the last is the innermost.
2415 It is incorrect to ever form a template argument vector containing
2416 only one level of arguments, but which is a TREE_VEC containing as
2417 its only entry the TREE_VEC for that level. */
2419 /* Nonzero if the template arguments is actually a vector of vectors,
2420 rather than just a vector. */
2421 #define TMPL_ARGS_HAVE_MULTIPLE_LEVELS(NODE) \
2422 (NODE && TREE_VEC_LENGTH (NODE) && TREE_VEC_ELT (NODE, 0) \
2423 && TREE_CODE (TREE_VEC_ELT (NODE, 0)) == TREE_VEC)
2425 /* The depth of a template argument vector. When called directly by
2426 the parser, we use a TREE_LIST rather than a TREE_VEC to represent
2427 template arguments. In fact, we may even see NULL_TREE if there
2428 are no template arguments. In both of those cases, there is only
2429 one level of template arguments. */
2430 #define TMPL_ARGS_DEPTH(NODE) \
2431 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (NODE) ? TREE_VEC_LENGTH (NODE) : 1)
2433 /* The LEVELth level of the template ARGS. The outermost level of
2434 args is level 1, not level 0. */
2435 #define TMPL_ARGS_LEVEL(ARGS, LEVEL) \
2436 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (ARGS) \
2437 ? TREE_VEC_ELT (ARGS, (LEVEL) - 1) : (ARGS))
2439 /* Set the LEVELth level of the template ARGS to VAL. This macro does
2440 not work with single-level argument vectors. */
2441 #define SET_TMPL_ARGS_LEVEL(ARGS, LEVEL, VAL) \
2442 (TREE_VEC_ELT (ARGS, (LEVEL) - 1) = (VAL))
2444 /* Accesses the IDXth parameter in the LEVELth level of the ARGS. */
2445 #define TMPL_ARG(ARGS, LEVEL, IDX) \
2446 (TREE_VEC_ELT (TMPL_ARGS_LEVEL (ARGS, LEVEL), IDX))
2448 /* Given a single level of template arguments in NODE, return the
2449 number of arguments. */
2450 #define NUM_TMPL_ARGS(NODE) \
2451 (TREE_VEC_LENGTH (NODE))
2453 /* Returns the innermost level of template arguments in ARGS. */
2454 #define INNERMOST_TEMPLATE_ARGS(NODE) \
2455 (get_innermost_template_args ((NODE), 1))
2457 /* The number of levels of template parameters given by NODE. */
2458 #define TMPL_PARMS_DEPTH(NODE) \
2459 ((HOST_WIDE_INT) TREE_INT_CST_LOW (TREE_PURPOSE (NODE)))
2461 /* The TEMPLATE_DECL instantiated or specialized by NODE. This
2462 TEMPLATE_DECL will be the immediate parent, not the most general
2463 template. For example, in:
2465 template <class T> struct S { template <class U> void f(U); }
2467 the FUNCTION_DECL for S<int>::f<double> will have, as its
2468 DECL_TI_TEMPLATE, `template <class U> S<int>::f<U>'.
2470 As a special case, for a member friend template of a template
2471 class, this value will not be a TEMPLATE_DECL, but rather an
2472 IDENTIFIER_NODE or OVERLOAD indicating the name of the template and
2473 any explicit template arguments provided. For example, in:
2475 template <class T> struct S { friend void f<int>(int, double); }
2477 the DECL_TI_TEMPLATE will be an IDENTIFIER_NODE for `f' and the
2478 DECL_TI_ARGS will be {int}. */
2479 #define DECL_TI_TEMPLATE(NODE) TI_TEMPLATE (DECL_TEMPLATE_INFO (NODE))
2481 /* The template arguments used to obtain this decl from the most
2482 general form of DECL_TI_TEMPLATE. For the example given for
2483 DECL_TI_TEMPLATE, the DECL_TI_ARGS will be {int, double}. These
2484 are always the full set of arguments required to instantiate this
2485 declaration from the most general template specialized here. */
2486 #define DECL_TI_ARGS(NODE) TI_ARGS (DECL_TEMPLATE_INFO (NODE))
2488 /* The TEMPLATE_DECL associated with NODE, a class type. Even if NODE
2489 will be generated from a partial specialization, the TEMPLATE_DECL
2490 referred to here will be the original template. For example,
2493 template <typename T> struct S {};
2494 template <typename T> struct S<T*> {};
2496 the CLASSTPYE_TI_TEMPLATE for S<int*> will be S, not the S<T*>. */
2497 #define CLASSTYPE_TI_TEMPLATE(NODE) TI_TEMPLATE (CLASSTYPE_TEMPLATE_INFO (NODE))
2498 #define CLASSTYPE_TI_ARGS(NODE) TI_ARGS (CLASSTYPE_TEMPLATE_INFO (NODE))
2500 /* For a template instantiation TYPE, returns the TYPE corresponding
2501 to the primary template. Otherwise returns TYPE itself. */
2502 #define CLASSTYPE_PRIMARY_TEMPLATE_TYPE(TYPE) \
2503 ((CLASSTYPE_USE_TEMPLATE ((TYPE)) \
2504 && !CLASSTYPE_TEMPLATE_SPECIALIZATION ((TYPE))) \
2505 ? TREE_TYPE (DECL_TEMPLATE_RESULT (DECL_PRIMARY_TEMPLATE \
2506 (CLASSTYPE_TI_TEMPLATE ((TYPE))))) \
2509 /* Like CLASS_TI_TEMPLATE, but also works for ENUMERAL_TYPEs. */
2510 #define TYPE_TI_TEMPLATE(NODE) \
2511 (TI_TEMPLATE (TYPE_TEMPLATE_INFO (NODE)))
2513 /* Like DECL_TI_ARGS, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2514 #define TYPE_TI_ARGS(NODE) \
2515 (TI_ARGS (TYPE_TEMPLATE_INFO (NODE)))
2517 #define INNERMOST_TEMPLATE_PARMS(NODE) TREE_VALUE (NODE)
2519 /* Nonzero if NODE (a TEMPLATE_DECL) is a member template, in the
2520 sense of [temp.mem]. */
2521 #define DECL_MEMBER_TEMPLATE_P(NODE) \
2522 (DECL_LANG_FLAG_1 (TEMPLATE_DECL_CHECK (NODE)))
2524 /* Nonzero if the NODE corresponds to the template parameters for a
2525 member template, whose inline definition is being processed after
2526 the class definition is complete. */
2527 #define TEMPLATE_PARMS_FOR_INLINE(NODE) TREE_LANG_FLAG_1 (NODE)
2529 /* Determine if a parameter (i.e., a PARM_DECL) is a function
2531 #define FUNCTION_PARAMETER_PACK_P(NODE) \
2532 (DECL_LANG_FLAG_1 (PARM_DECL_CHECK (NODE)))
2534 /* Determines if NODE is an expansion of one or more parameter packs,
2535 e.g., a TYPE_PACK_EXPANSION or EXPR_PACK_EXPANSION. */
2536 #define PACK_EXPANSION_P(NODE) \
2537 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION \
2538 || TREE_CODE (NODE) == EXPR_PACK_EXPANSION)
2540 /* Extracts the type or expression pattern from a TYPE_PACK_EXPANSION or
2541 EXPR_PACK_EXPANSION. */
2542 #define PACK_EXPANSION_PATTERN(NODE) \
2543 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION? TREE_TYPE (NODE) \
2544 : TREE_OPERAND (NODE, 0))
2546 /* Sets the type or expression pattern for a TYPE_PACK_EXPANSION or
2547 EXPR_PACK_EXPANSION. */
2548 #define SET_PACK_EXPANSION_PATTERN(NODE,VALUE) \
2549 if (TREE_CODE (NODE) == TYPE_PACK_EXPANSION) \
2550 TREE_TYPE (NODE) = VALUE; \
2552 TREE_OPERAND (NODE, 0) = VALUE
2554 /* The list of parameter packs used in the PACK_EXPANSION_* node. The
2555 TREE_VALUE of each TREE_LIST contains the parameter packs. */
2556 #define PACK_EXPANSION_PARAMETER_PACKS(NODE) TREE_CHAIN (NODE)
2558 /* Determine if this is an argument pack. */
2559 #define ARGUMENT_PACK_P(NODE) \
2560 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK \
2561 || TREE_CODE (NODE) == NONTYPE_ARGUMENT_PACK)
2563 /* The arguments stored in an argument pack. Arguments are stored in a
2564 TREE_VEC, which may have length zero. */
2565 #define ARGUMENT_PACK_ARGS(NODE) \
2566 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK? TREE_TYPE (NODE) \
2567 : TREE_OPERAND (NODE, 0))
2569 /* Set the arguments stored in an argument pack. VALUE must be a
2571 #define SET_ARGUMENT_PACK_ARGS(NODE,VALUE) \
2572 if (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK) \
2573 TREE_TYPE (NODE) = VALUE; \
2575 TREE_OPERAND (NODE, 0) = VALUE
2577 /* Whether the argument pack is "incomplete", meaning that more
2578 arguments can still be deduced. Incomplete argument packs are only
2579 used when the user has provided an explicit template argument list
2580 for a variadic function template. Some of the explicit template
2581 arguments will be placed into the beginning of the argument pack,
2582 but additional arguments might still be deduced. */
2583 #define ARGUMENT_PACK_INCOMPLETE_P(NODE) \
2584 TREE_LANG_FLAG_0 (ARGUMENT_PACK_ARGS (NODE))
2586 /* When ARGUMENT_PACK_INCOMPLETE_P, stores the explicit template
2587 arguments used to fill this pack. */
2588 #define ARGUMENT_PACK_EXPLICIT_ARGS(NODE) \
2589 TREE_TYPE (ARGUMENT_PACK_ARGS (NODE))
2591 /* In an ARGUMENT_PACK_SELECT, the argument pack from which an
2592 argument will be selected. */
2593 #define ARGUMENT_PACK_SELECT_FROM_PACK(NODE) \
2594 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->argument_pack)
2596 /* In an ARGUMENT_PACK_SELECT, the index of the argument we want to
2598 #define ARGUMENT_PACK_SELECT_INDEX(NODE) \
2599 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->index)
2601 /* In an ARGUMENT_PACK_SELECT, the actual underlying argument that the
2602 ARGUMENT_PACK_SELECT represents. */
2603 #define ARGUMENT_PACK_SELECT_ARG(NODE) \
2604 TREE_VEC_ELT (ARGUMENT_PACK_ARGS (ARGUMENT_PACK_SELECT_FROM_PACK (NODE)), \
2605 ARGUMENT_PACK_SELECT_INDEX (NODE));
2607 /* In a FUNCTION_DECL, the saved language-specific per-function data. */
2608 #define DECL_SAVED_FUNCTION_DATA(NODE) \
2609 (LANG_DECL_FN_CHECK (FUNCTION_DECL_CHECK (NODE)) \
2610 ->u.saved_language_function)
2612 /* Indicates an indirect_expr is for converting a reference. */
2613 #define REFERENCE_REF_P(NODE) \
2614 TREE_LANG_FLAG_0 (INDIRECT_REF_CHECK (NODE))
2616 #define NEW_EXPR_USE_GLOBAL(NODE) \
2617 TREE_LANG_FLAG_0 (NEW_EXPR_CHECK (NODE))
2618 #define DELETE_EXPR_USE_GLOBAL(NODE) \
2619 TREE_LANG_FLAG_0 (DELETE_EXPR_CHECK (NODE))
2620 #define DELETE_EXPR_USE_VEC(NODE) \
2621 TREE_LANG_FLAG_1 (DELETE_EXPR_CHECK (NODE))
2623 /* Indicates that this is a non-dependent COMPOUND_EXPR which will
2624 resolve to a function call. */
2625 #define COMPOUND_EXPR_OVERLOADED(NODE) \
2626 TREE_LANG_FLAG_0 (COMPOUND_EXPR_CHECK (NODE))
2628 /* In a CALL_EXPR appearing in a template, true if Koenig lookup
2629 should be performed at instantiation time. */
2630 #define KOENIG_LOOKUP_P(NODE) TREE_LANG_FLAG_0 (CALL_EXPR_CHECK (NODE))
2632 /* Indicates whether a string literal has been parenthesized. Such
2633 usages are disallowed in certain circumstances. */
2635 #define PAREN_STRING_LITERAL_P(NODE) \
2636 TREE_LANG_FLAG_0 (STRING_CST_CHECK (NODE))
2638 /* Nonzero if this AGGR_INIT_EXPR provides for initialization via a
2639 constructor call, rather than an ordinary function call. */
2640 #define AGGR_INIT_VIA_CTOR_P(NODE) \
2641 TREE_LANG_FLAG_0 (AGGR_INIT_EXPR_CHECK (NODE))
2643 /* Nonzero if expanding this AGGR_INIT_EXPR should first zero-initialize
2645 #define AGGR_INIT_ZERO_FIRST(NODE) \
2646 TREE_LANG_FLAG_2 (AGGR_INIT_EXPR_CHECK (NODE))
2648 /* AGGR_INIT_EXPR accessors. These are equivalent to the CALL_EXPR
2649 accessors, except for AGGR_INIT_EXPR_SLOT (which takes the place of
2650 CALL_EXPR_STATIC_CHAIN). */
2652 #define AGGR_INIT_EXPR_FN(NODE) TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 1)
2653 #define AGGR_INIT_EXPR_SLOT(NODE) \
2654 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 2)
2655 #define AGGR_INIT_EXPR_ARG(NODE, I) \
2656 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), (I) + 3)
2657 #define aggr_init_expr_nargs(NODE) (VL_EXP_OPERAND_LENGTH(NODE) - 3)
2659 /* AGGR_INIT_EXPR_ARGP returns a pointer to the argument vector for NODE.
2660 We can't use &AGGR_INIT_EXPR_ARG (NODE, 0) because that will complain if
2661 the argument count is zero when checking is enabled. Instead, do
2662 the pointer arithmetic to advance past the 3 fixed operands in a
2663 AGGR_INIT_EXPR. That produces a valid pointer to just past the end of
2664 the operand array, even if it's not valid to dereference it. */
2665 #define AGGR_INIT_EXPR_ARGP(NODE) \
2666 (&(TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 0)) + 3)
2668 /* Abstract iterators for AGGR_INIT_EXPRs. */
2670 /* Structure containing iterator state. */
2671 typedef struct GTY (()) aggr_init_expr_arg_iterator_d {
2672 tree t; /* the aggr_init_expr */
2673 int n; /* argument count */
2674 int i; /* next argument index */
2675 } aggr_init_expr_arg_iterator;
2677 /* Initialize the abstract argument list iterator object ITER with the
2678 arguments from AGGR_INIT_EXPR node EXP. */
2680 init_aggr_init_expr_arg_iterator (tree exp,
2681 aggr_init_expr_arg_iterator *iter)
2684 iter->n = aggr_init_expr_nargs (exp);
2688 /* Return the next argument from abstract argument list iterator object ITER,
2689 and advance its state. Return NULL_TREE if there are no more arguments. */
2691 next_aggr_init_expr_arg (aggr_init_expr_arg_iterator *iter)
2694 if (iter->i >= iter->n)
2696 result = AGGR_INIT_EXPR_ARG (iter->t, iter->i);
2701 /* Initialize the abstract argument list iterator object ITER, then advance
2702 past and return the first argument. Useful in for expressions, e.g.
2703 for (arg = first_aggr_init_expr_arg (exp, &iter); arg;
2704 arg = next_aggr_init_expr_arg (&iter)) */
2706 first_aggr_init_expr_arg (tree exp, aggr_init_expr_arg_iterator *iter)
2708 init_aggr_init_expr_arg_iterator (exp, iter);
2709 return next_aggr_init_expr_arg (iter);
2712 /* Test whether there are more arguments in abstract argument list iterator
2713 ITER, without changing its state. */
2715 more_aggr_init_expr_args_p (const aggr_init_expr_arg_iterator *iter)
2717 return (iter->i < iter->n);
2720 /* Iterate through each argument ARG of AGGR_INIT_EXPR CALL, using variable
2721 ITER (of type aggr_init_expr_arg_iterator) to hold the iteration state. */
2722 #define FOR_EACH_AGGR_INIT_EXPR_ARG(arg, iter, call) \
2723 for ((arg) = first_aggr_init_expr_arg ((call), &(iter)); (arg); \
2724 (arg) = next_aggr_init_expr_arg (&(iter)))
2726 /* VEC_INIT_EXPR accessors. */
2727 #define VEC_INIT_EXPR_SLOT(NODE) TREE_OPERAND (NODE, 0)
2728 #define VEC_INIT_EXPR_INIT(NODE) TREE_OPERAND (NODE, 1)
2730 /* The TYPE_MAIN_DECL for a class template type is a TYPE_DECL, not a
2731 TEMPLATE_DECL. This macro determines whether or not a given class
2732 type is really a template type, as opposed to an instantiation or
2733 specialization of one. */
2734 #define CLASSTYPE_IS_TEMPLATE(NODE) \
2735 (CLASSTYPE_TEMPLATE_INFO (NODE) \
2736 && !CLASSTYPE_USE_TEMPLATE (NODE) \
2737 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE)))
2739 /* The name used by the user to name the typename type. Typically,
2740 this is an IDENTIFIER_NODE, and the same as the DECL_NAME on the
2741 corresponding TYPE_DECL. However, this may also be a
2742 TEMPLATE_ID_EXPR if we had something like `typename X::Y<T>'. */
2743 #define TYPENAME_TYPE_FULLNAME(NODE) (TYPENAME_TYPE_CHECK (NODE))->type.values
2745 /* True if a TYPENAME_TYPE was declared as an "enum". */
2746 #define TYPENAME_IS_ENUM_P(NODE) \
2747 (TREE_LANG_FLAG_0 (TYPENAME_TYPE_CHECK (NODE)))
2749 /* True if a TYPENAME_TYPE was declared as a "class", "struct", or
2751 #define TYPENAME_IS_CLASS_P(NODE) \
2752 (TREE_LANG_FLAG_1 (TYPENAME_TYPE_CHECK (NODE)))
2754 /* True if a TYPENAME_TYPE is in the process of being resolved. */
2755 #define TYPENAME_IS_RESOLVING_P(NODE) \
2756 (TREE_LANG_FLAG_2 (TYPENAME_TYPE_CHECK (NODE)))
2758 /* Nonzero in INTEGER_CST means that this int is negative by dint of
2759 using a twos-complement negated operand. */
2760 #define TREE_NEGATED_INT(NODE) TREE_LANG_FLAG_0 (INTEGER_CST_CHECK (NODE))
2764 A class that declares or inherits a virtual function is called a
2765 polymorphic class. */
2766 #define TYPE_POLYMORPHIC_P(NODE) (TREE_LANG_FLAG_2 (NODE))
2768 /* Nonzero if this class has a virtual function table pointer. */
2769 #define TYPE_CONTAINS_VPTR_P(NODE) \
2770 (TYPE_POLYMORPHIC_P (NODE) || CLASSTYPE_VBASECLASSES (NODE))
2772 /* This flag is true of a local VAR_DECL if it was declared in a for
2773 statement, but we are no longer in the scope of the for. */
2774 #define DECL_DEAD_FOR_LOCAL(NODE) DECL_LANG_FLAG_7 (VAR_DECL_CHECK (NODE))
2776 /* This flag is set on a VAR_DECL that is a DECL_DEAD_FOR_LOCAL
2777 if we already emitted a warning about using it. */
2778 #define DECL_ERROR_REPORTED(NODE) DECL_LANG_FLAG_0 (VAR_DECL_CHECK (NODE))
2780 /* Nonzero if NODE is a FUNCTION_DECL (for a function with global
2781 scope) declared in a local scope. */
2782 #define DECL_LOCAL_FUNCTION_P(NODE) \
2783 DECL_LANG_FLAG_0 (FUNCTION_DECL_CHECK (NODE))
2785 /* Nonzero if NODE is a DECL which we know about but which has not
2786 been explicitly declared, such as a built-in function or a friend
2787 declared inside a class. In the latter case DECL_HIDDEN_FRIEND_P
2789 #define DECL_ANTICIPATED(NODE) \
2790 (DECL_LANG_SPECIFIC (DECL_COMMON_CHECK (NODE))->u.base.anticipated_p)
2792 /* Nonzero if NODE is a FUNCTION_DECL which was declared as a friend
2793 within a class but has not been declared in the surrounding scope.
2794 The function is invisible except via argument dependent lookup. */
2795 #define DECL_HIDDEN_FRIEND_P(NODE) \
2796 (LANG_DECL_FN_CHECK (DECL_COMMON_CHECK (NODE))->hidden_friend_p)
2798 /* Nonzero if DECL has been declared threadprivate by
2799 #pragma omp threadprivate. */
2800 #define CP_DECL_THREADPRIVATE_P(DECL) \
2801 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (DECL))->u.base.threadprivate_or_deleted_p)
2803 /* Nonzero if DECL was declared with '= delete'. */
2804 #define DECL_DELETED_FN(DECL) \
2805 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->u.base.threadprivate_or_deleted_p)
2807 /* Nonzero if DECL was declared with '= default'. */
2808 #define DECL_DEFAULTED_FN(DECL) \
2809 (LANG_DECL_FN_CHECK (DECL)->defaulted_p)
2811 /* Record whether a typedef for type `int' was actually `signed int'. */
2812 #define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP)
2814 /* Returns nonzero if DECL has external linkage, as specified by the
2815 language standard. (This predicate may hold even when the
2816 corresponding entity is not actually given external linkage in the
2817 object file; see decl_linkage for details.) */
2818 #define DECL_EXTERNAL_LINKAGE_P(DECL) \
2819 (decl_linkage (DECL) == lk_external)
2821 /* Keep these codes in ascending code order. */
2823 #define INTEGRAL_CODE_P(CODE) \
2824 ((CODE) == ENUMERAL_TYPE \
2825 || (CODE) == BOOLEAN_TYPE \
2826 || (CODE) == INTEGER_TYPE)
2828 /* [basic.fundamental]
2830 Types bool, char, wchar_t, and the signed and unsigned integer types
2831 are collectively called integral types.
2833 Note that INTEGRAL_TYPE_P, as defined in tree.h, allows enumeration
2834 types as well, which is incorrect in C++. Keep these checks in
2835 ascending code order. */
2836 #define CP_INTEGRAL_TYPE_P(TYPE) \
2837 (TREE_CODE (TYPE) == BOOLEAN_TYPE \
2838 || TREE_CODE (TYPE) == INTEGER_TYPE)
2840 /* Returns true if TYPE is an integral or enumeration name. Keep
2841 these checks in ascending code order. */
2842 #define INTEGRAL_OR_ENUMERATION_TYPE_P(TYPE) \
2843 (TREE_CODE (TYPE) == ENUMERAL_TYPE || CP_INTEGRAL_TYPE_P (TYPE))
2845 /* Returns true if TYPE is an integral or unscoped enumeration type. */
2846 #define INTEGRAL_OR_UNSCOPED_ENUMERATION_TYPE_P(TYPE) \
2847 (UNSCOPED_ENUM_P (TYPE) || CP_INTEGRAL_TYPE_P (TYPE))
2849 /* [basic.fundamental]
2851 Integral and floating types are collectively called arithmetic
2854 As a GNU extension, we also accept complex types.
2856 Keep these checks in ascending code order. */
2857 #define ARITHMETIC_TYPE_P(TYPE) \
2858 (CP_INTEGRAL_TYPE_P (TYPE) \
2859 || TREE_CODE (TYPE) == REAL_TYPE \
2860 || TREE_CODE (TYPE) == COMPLEX_TYPE)
2864 Arithmetic types, enumeration types, pointer types, and
2865 pointer-to-member types, are collectively called scalar types.
2867 Keep these checks in ascending code order. */
2868 #define SCALAR_TYPE_P(TYPE) \
2869 (TYPE_PTRMEM_P (TYPE) \
2870 || TREE_CODE (TYPE) == ENUMERAL_TYPE \
2871 || ARITHMETIC_TYPE_P (TYPE) \
2872 || TYPE_PTR_P (TYPE) \
2873 || TYPE_PTRMEMFUNC_P (TYPE))
2875 /* Determines whether this type is a C++0x scoped enumeration
2876 type. Scoped enumerations types are introduced via "enum class" or
2877 "enum struct", e.g.,
2883 Scoped enumeration types are different from normal (unscoped)
2884 enumeration types in several ways:
2886 - The enumerators of a scoped enumeration type are only available
2887 within the scope of the enumeration type and not in the
2888 enclosing scope. For example, the Red color can be referred to
2889 with "Color::Red" but not "Red".
2891 - Scoped enumerators and enumerations do not implicitly convert
2892 to integers or 'bool'.
2894 - The underlying type of the enum is well-defined. */
2895 #define SCOPED_ENUM_P(TYPE) \
2896 (TREE_CODE (TYPE) == ENUMERAL_TYPE && TYPE_LANG_FLAG_5 (TYPE))
2898 /* Determine whether this is an unscoped enumeration type. */
2899 #define UNSCOPED_ENUM_P(TYPE) \
2900 (TREE_CODE (TYPE) == ENUMERAL_TYPE && !TYPE_LANG_FLAG_5 (TYPE))
2902 /* Set the flag indicating whether an ENUMERAL_TYPE is a C++0x scoped
2903 enumeration type (1) or a normal (unscoped) enumeration type
2905 #define SET_SCOPED_ENUM_P(TYPE, VAL) \
2906 (TYPE_LANG_FLAG_5 (ENUMERAL_TYPE_CHECK (TYPE)) = (VAL))
2908 /* Returns the underlying type of the given enumeration type. The
2909 underlying type is determined in different ways, depending on the
2910 properties of the enum:
2912 - In C++0x, the underlying type can be explicitly specified, e.g.,
2914 enum E1 : char { ... } // underlying type is char
2916 - In a C++0x scoped enumeration, the underlying type is int
2917 unless otherwises specified:
2919 enum class E2 { ... } // underlying type is int
2921 - Otherwise, the underlying type is determined based on the
2922 values of the enumerators. In this case, the
2923 ENUM_UNDERLYING_TYPE will not be set until after the definition
2924 of the enumeration is completed by finish_enum. */
2925 #define ENUM_UNDERLYING_TYPE(TYPE) \
2926 TREE_TYPE (ENUMERAL_TYPE_CHECK (TYPE))
2930 An aggregate is an array or a class with no user-declared
2931 constructors, no private or protected non-static data members, no
2932 base classes, and no virtual functions.
2934 As an extension, we also treat vectors as aggregates. Keep these
2935 checks in ascending code order. */
2936 #define CP_AGGREGATE_TYPE_P(TYPE) \
2937 (TREE_CODE (TYPE) == VECTOR_TYPE \
2938 ||TREE_CODE (TYPE) == ARRAY_TYPE \
2939 || (CLASS_TYPE_P (TYPE) && !CLASSTYPE_NON_AGGREGATE (TYPE)))
2941 /* Nonzero for a class type means that the class type has a
2942 user-declared constructor. */
2943 #define TYPE_HAS_USER_CONSTRUCTOR(NODE) (TYPE_LANG_FLAG_1 (NODE))
2945 /* When appearing in an INDIRECT_REF, it means that the tree structure
2946 underneath is actually a call to a constructor. This is needed
2947 when the constructor must initialize local storage (which can
2948 be automatically destroyed), rather than allowing it to allocate
2949 space from the heap.
2951 When appearing in a SAVE_EXPR, it means that underneath
2952 is a call to a constructor.
2954 When appearing in a CONSTRUCTOR, the expression is a
2957 When appearing in a FIELD_DECL, it means that this field
2958 has been duly initialized in its constructor. */
2959 #define TREE_HAS_CONSTRUCTOR(NODE) (TREE_LANG_FLAG_4 (NODE))
2961 /* True if NODE is a brace-enclosed initializer. */
2962 #define BRACE_ENCLOSED_INITIALIZER_P(NODE) \
2963 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_TYPE (NODE) == init_list_type_node)
2965 /* True if NODE is a compound-literal, i.e., a brace-enclosed
2966 initializer cast to a particular type. */
2967 #define COMPOUND_LITERAL_P(NODE) \
2968 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_HAS_CONSTRUCTOR (NODE))
2970 #define EMPTY_CONSTRUCTOR_P(NODE) (TREE_CODE (NODE) == CONSTRUCTOR \
2971 && VEC_empty (constructor_elt, \
2972 CONSTRUCTOR_ELTS (NODE)) \
2973 && !TREE_HAS_CONSTRUCTOR (NODE))
2975 /* True if NODE is a init-list used as a direct-initializer, i.e.
2976 B b{1,2}, not B b({1,2}) or B b = {1,2}. */
2977 #define CONSTRUCTOR_IS_DIRECT_INIT(NODE) (TREE_LANG_FLAG_0 (CONSTRUCTOR_CHECK (NODE)))
2979 /* Nonzero means that an object of this type can not be initialized using
2980 an initializer list. */
2981 #define CLASSTYPE_NON_AGGREGATE(NODE) \
2982 (LANG_TYPE_CLASS_CHECK (NODE)->non_aggregate)
2983 #define TYPE_NON_AGGREGATE_CLASS(NODE) \
2984 (CLASS_TYPE_P (NODE) && CLASSTYPE_NON_AGGREGATE (NODE))
2986 /* Nonzero if there is a user-defined X::op=(x&) for this class. */
2987 #define TYPE_HAS_COMPLEX_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_assign_ref)
2989 /* Nonzero if there is a user-defined X::X(x&) for this class. */
2990 #define TYPE_HAS_COMPLEX_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_init_ref)
2992 /* Nonzero if there is a user-defined default constructor for this class. */
2993 #define TYPE_HAS_COMPLEX_DFLT(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_dflt)
2995 /* Nonzero if TYPE has a trivial destructor. From [class.dtor]:
2997 A destructor is trivial if it is an implicitly declared
3000 - all of the direct base classes of its class have trivial
3003 - for all of the non-static data members of its class that are
3004 of class type (or array thereof), each such class has a
3005 trivial destructor. */
3006 #define TYPE_HAS_TRIVIAL_DESTRUCTOR(NODE) \
3007 (!TYPE_HAS_NONTRIVIAL_DESTRUCTOR (NODE))
3009 /* Nonzero for _TYPE node means that this type does not have a trivial
3010 destructor. Therefore, destroying an object of this type will
3011 involve a call to a destructor. This can apply to objects of
3012 ARRAY_TYPE is the type of the elements needs a destructor. */
3013 #define TYPE_HAS_NONTRIVIAL_DESTRUCTOR(NODE) \
3014 (TYPE_LANG_FLAG_4 (NODE))
3016 /* Nonzero for class type means that the default constructor is trivial. */
3017 #define TYPE_HAS_TRIVIAL_DFLT(NODE) \
3018 (TYPE_HAS_DEFAULT_CONSTRUCTOR (NODE) && ! TYPE_HAS_COMPLEX_DFLT (NODE))
3020 /* Nonzero for class type means that copy initialization of this type can use
3022 #define TYPE_HAS_TRIVIAL_INIT_REF(NODE) \
3023 (TYPE_HAS_INIT_REF (NODE) && ! TYPE_HAS_COMPLEX_INIT_REF (NODE))
3025 /* Nonzero for class type means that assignment of this type can use
3027 #define TYPE_HAS_TRIVIAL_ASSIGN_REF(NODE) \
3028 (TYPE_HAS_ASSIGN_REF (NODE) && ! TYPE_HAS_COMPLEX_ASSIGN_REF (NODE))
3030 /* Returns true if NODE is a pointer-to-data-member. */
3031 #define TYPE_PTRMEM_P(NODE) \
3032 (TREE_CODE (NODE) == OFFSET_TYPE)
3033 /* Returns true if NODE is a pointer. */
3034 #define TYPE_PTR_P(NODE) \
3035 (TREE_CODE (NODE) == POINTER_TYPE)
3037 /* Returns true if NODE is an object type:
3041 An object type is a (possibly cv-qualified) type that is not a
3042 function type, not a reference type, and not a void type.
3044 Keep these checks in ascending order, for speed. */
3045 #define TYPE_OBJ_P(NODE) \
3046 (TREE_CODE (NODE) != REFERENCE_TYPE \
3047 && TREE_CODE (NODE) != VOID_TYPE \
3048 && TREE_CODE (NODE) != FUNCTION_TYPE \
3049 && TREE_CODE (NODE) != METHOD_TYPE)
3051 /* Returns true if NODE is a pointer to an object. Keep these checks
3052 in ascending tree code order. */
3053 #define TYPE_PTROB_P(NODE) \
3054 (TYPE_PTR_P (NODE) && TYPE_OBJ_P (TREE_TYPE (NODE)))
3056 /* Returns true if NODE is a reference to an object. Keep these checks
3057 in ascending tree code order. */
3058 #define TYPE_REF_OBJ_P(NODE) \
3059 (TREE_CODE (NODE) == REFERENCE_TYPE && TYPE_OBJ_P (TREE_TYPE (NODE)))
3061 /* True if reference type NODE is an rvalue reference */
3062 #define TYPE_REF_IS_RVALUE(NODE) \
3063 TREE_LANG_FLAG_0 (REFERENCE_TYPE_CHECK (NODE))
3065 /* Returns true if NODE is a pointer to an object, or a pointer to
3066 void. Keep these checks in ascending tree code order. */
3067 #define TYPE_PTROBV_P(NODE) \
3068 (TYPE_PTR_P (NODE) \
3069 && !(TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE \
3070 || TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE))
3072 /* Returns true if NODE is a pointer to function. */
3073 #define TYPE_PTRFN_P(NODE) \
3074 (TREE_CODE (NODE) == POINTER_TYPE \
3075 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
3077 /* Returns true if NODE is a reference to function. */
3078 #define TYPE_REFFN_P(NODE) \
3079 (TREE_CODE (NODE) == REFERENCE_TYPE \
3080 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
3082 /* Nonzero for _TYPE node means that this type is a pointer to member
3084 #define TYPE_PTRMEMFUNC_P(NODE) \
3085 (TREE_CODE (NODE) == RECORD_TYPE \
3086 && TYPE_LANG_SPECIFIC (NODE) \
3087 && TYPE_PTRMEMFUNC_FLAG (NODE))
3089 #define TYPE_PTRMEMFUNC_FLAG(NODE) \
3090 (LANG_TYPE_CLASS_CHECK (NODE)->ptrmemfunc_flag)
3092 /* Returns true if NODE is a pointer-to-member. */
3093 #define TYPE_PTR_TO_MEMBER_P(NODE) \
3094 (TYPE_PTRMEM_P (NODE) || TYPE_PTRMEMFUNC_P (NODE))
3096 /* Indicates when overload resolution may resolve to a pointer to
3097 member function. [expr.unary.op]/3 */
3098 #define PTRMEM_OK_P(NODE) \
3099 TREE_LANG_FLAG_0 (TREE_CHECK2 ((NODE), ADDR_EXPR, OFFSET_REF))
3101 /* Get the POINTER_TYPE to the METHOD_TYPE associated with this
3102 pointer to member function. TYPE_PTRMEMFUNC_P _must_ be true,
3103 before using this macro. */
3104 #define TYPE_PTRMEMFUNC_FN_TYPE(NODE) \
3105 (TREE_TYPE (TYPE_FIELDS (NODE)))
3107 /* Returns `A' for a type like `int (A::*)(double)' */
3108 #define TYPE_PTRMEMFUNC_OBJECT_TYPE(NODE) \
3109 TYPE_METHOD_BASETYPE (TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
3111 /* These are use to manipulate the canonical RECORD_TYPE from the
3112 hashed POINTER_TYPE, and can only be used on the POINTER_TYPE. */
3113 #define TYPE_GET_PTRMEMFUNC_TYPE(NODE) \
3114 (TYPE_LANG_SPECIFIC (NODE) ? LANG_TYPE_PTRMEM_CHECK (NODE)->record : NULL)
3115 #define TYPE_SET_PTRMEMFUNC_TYPE(NODE, VALUE) \
3117 if (TYPE_LANG_SPECIFIC (NODE) == NULL) \
3119 TYPE_LANG_SPECIFIC (NODE) = GGC_CNEWVAR \
3120 (struct lang_type, sizeof (struct lang_type_ptrmem)); \
3121 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.h.is_lang_type_class = 0; \
3123 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.record = (VALUE); \
3126 /* For a pointer-to-member type of the form `T X::*', this is `X'.
3127 For a type like `void (X::*)() const', this type is `X', not `const
3128 X'. To get at the `const X' you have to look at the
3129 TYPE_PTRMEM_POINTED_TO_TYPE; there, the first parameter will have
3131 #define TYPE_PTRMEM_CLASS_TYPE(NODE) \
3132 (TYPE_PTRMEM_P (NODE) \
3133 ? TYPE_OFFSET_BASETYPE (NODE) \
3134 : TYPE_PTRMEMFUNC_OBJECT_TYPE (NODE))
3136 /* For a pointer-to-member type of the form `T X::*', this is `T'. */
3137 #define TYPE_PTRMEM_POINTED_TO_TYPE(NODE) \
3138 (TYPE_PTRMEM_P (NODE) \
3139 ? TREE_TYPE (NODE) \
3140 : TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
3142 /* For a pointer-to-member constant `X::Y' this is the RECORD_TYPE for
3144 #define PTRMEM_CST_CLASS(NODE) \
3145 TYPE_PTRMEM_CLASS_TYPE (TREE_TYPE (PTRMEM_CST_CHECK (NODE)))
3147 /* For a pointer-to-member constant `X::Y' this is the _DECL for
3149 #define PTRMEM_CST_MEMBER(NODE) (((ptrmem_cst_t)PTRMEM_CST_CHECK (NODE))->member)
3151 /* The expression in question for a TYPEOF_TYPE. */
3152 #define TYPEOF_TYPE_EXPR(NODE) (TYPEOF_TYPE_CHECK (NODE))->type.values
3154 /* The expression in question for a DECLTYPE_TYPE. */
3155 #define DECLTYPE_TYPE_EXPR(NODE) (DECLTYPE_TYPE_CHECK (NODE))->type.values
3157 /* Whether the DECLTYPE_TYPE_EXPR of NODE was originally parsed as an
3158 id-expression or a member-access expression. When false, it was
3159 parsed as a full expression. */
3160 #define DECLTYPE_TYPE_ID_EXPR_OR_MEMBER_ACCESS_P(NODE) \
3161 (DECLTYPE_TYPE_CHECK (NODE))->type.string_flag
3163 /* These flags indicate that we want different semantics from normal
3164 decltype: lambda capture just drops references, lambda return also does
3166 #define DECLTYPE_FOR_LAMBDA_CAPTURE(NODE) \
3167 TREE_LANG_FLAG_0 (DECLTYPE_TYPE_CHECK (NODE))
3168 #define DECLTYPE_FOR_LAMBDA_RETURN(NODE) \
3169 TREE_LANG_FLAG_1 (DECLTYPE_TYPE_CHECK (NODE))
3171 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `extern' was
3172 specified in its declaration. This can also be set for an
3173 erroneously declared PARM_DECL. */
3174 #define DECL_THIS_EXTERN(NODE) \
3175 DECL_LANG_FLAG_2 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
3177 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `static' was
3178 specified in its declaration. This can also be set for an
3179 erroneously declared PARM_DECL. */
3180 #define DECL_THIS_STATIC(NODE) \
3181 DECL_LANG_FLAG_6 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
3183 /* Nonzero for FIELD_DECL node means that this field is a base class
3184 of the parent object, as opposed to a member field. */
3185 #define DECL_FIELD_IS_BASE(NODE) \
3186 DECL_LANG_FLAG_6 (FIELD_DECL_CHECK (NODE))
3188 /* Nonzero if TYPE is an anonymous union or struct type. We have to use a
3189 flag for this because "A union for which objects or pointers are
3190 declared is not an anonymous union" [class.union]. */
3191 #define ANON_AGGR_TYPE_P(NODE) \
3192 (CLASS_TYPE_P (NODE) && LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr)
3193 #define SET_ANON_AGGR_TYPE_P(NODE) \
3194 (LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr = 1)
3196 /* Nonzero if TYPE is an anonymous union type. */
3197 #define ANON_UNION_TYPE_P(NODE) \
3198 (TREE_CODE (NODE) == UNION_TYPE && ANON_AGGR_TYPE_P (NODE))
3200 #define UNKNOWN_TYPE LANG_TYPE
3202 /* Define fields and accessors for nodes representing declared names. */
3204 #define TYPE_WAS_ANONYMOUS(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->was_anonymous)
3206 /* C++: all of these are overloaded! These apply only to TYPE_DECLs. */
3208 /* The format of each node in the DECL_FRIENDLIST is as follows:
3210 The TREE_PURPOSE will be the name of a function, i.e., an
3211 IDENTIFIER_NODE. The TREE_VALUE will be itself a TREE_LIST, whose
3212 TREE_VALUEs are friends with the given name. */
3213 #define DECL_FRIENDLIST(NODE) (DECL_INITIAL (NODE))
3214 #define FRIEND_NAME(LIST) (TREE_PURPOSE (LIST))
3215 #define FRIEND_DECLS(LIST) (TREE_VALUE (LIST))
3217 /* The DECL_ACCESS, if non-NULL, is a TREE_LIST. The TREE_PURPOSE of
3218 each node is a type; the TREE_VALUE is the access granted for this
3219 DECL in that type. The DECL_ACCESS is set by access declarations.
3220 For example, if a member that would normally be public in a
3221 derived class is made protected, then the derived class and the
3222 protected_access_node will appear in the DECL_ACCESS for the node. */
3223 #define DECL_ACCESS(NODE) (LANG_DECL_U2_CHECK (NODE, 0)->access)
3225 /* Nonzero if the FUNCTION_DECL is a global constructor. */
3226 #define DECL_GLOBAL_CTOR_P(NODE) \
3227 (LANG_DECL_FN_CHECK (NODE)->global_ctor_p)
3229 /* Nonzero if the FUNCTION_DECL is a global destructor. */
3230 #define DECL_GLOBAL_DTOR_P(NODE) \
3231 (LANG_DECL_FN_CHECK (NODE)->global_dtor_p)
3233 /* Accessor macros for C++ template decl nodes. */
3235 /* The DECL_TEMPLATE_PARMS are a list. The TREE_PURPOSE of each node
3236 is a INT_CST whose TREE_INT_CST_LOW indicates the level of the
3237 template parameters, with 1 being the outermost set of template
3238 parameters. The TREE_VALUE is a vector, whose elements are the
3239 template parameters at each level. Each element in the vector is a
3240 TREE_LIST, whose TREE_VALUE is a PARM_DECL (if the parameter is a
3241 non-type parameter), or a TYPE_DECL (if the parameter is a type
3242 parameter). The TREE_PURPOSE is the default value, if any. The
3243 TEMPLATE_PARM_INDEX for the parameter is available as the
3244 DECL_INITIAL (for a PARM_DECL) or as the TREE_TYPE (for a
3246 #define DECL_TEMPLATE_PARMS(NODE) DECL_NON_COMMON_CHECK (NODE)->decl_non_common.arguments
3247 #define DECL_INNERMOST_TEMPLATE_PARMS(NODE) \
3248 INNERMOST_TEMPLATE_PARMS (DECL_TEMPLATE_PARMS (NODE))
3249 #define DECL_NTPARMS(NODE) \
3250 TREE_VEC_LENGTH (DECL_INNERMOST_TEMPLATE_PARMS (NODE))
3251 /* For function, method, class-data templates. */
3252 #define DECL_TEMPLATE_RESULT(NODE) DECL_RESULT_FLD (NODE)
3253 /* For a function template at namespace scope, DECL_TEMPLATE_INSTANTIATIONS
3254 lists all instantiations and specializations of the function so that
3255 tsubst_friend_function can reassign them to another template if we find
3256 that the namespace-scope template is really a partial instantiation of a
3259 For a class template the DECL_TEMPLATE_INSTANTIATIONS lists holds
3260 all instantiations and specializations of the class type, including
3261 partial instantiations and partial specializations, so that if we
3262 explicitly specialize a partial instantiation we can walk the list
3263 in maybe_process_partial_specialization and reassign them or complain
3266 In both cases, the TREE_PURPOSE of each node contains the arguments
3267 used; the TREE_VALUE contains the generated variable. The template
3268 arguments are always complete. For example, given:
3270 template <class T> struct S1 {
3271 template <class U> struct S2 {};
3272 template <class U> struct S2<U*> {};
3275 the record for the partial specialization will contain, as its
3276 argument list, { {T}, {U*} }, and will be on the
3277 DECL_TEMPLATE_INSTANTIATIONS list for `template <class T> template
3278 <class U> struct S1<T>::S2'.
3280 This list is not used for other templates. */
3281 #define DECL_TEMPLATE_INSTANTIATIONS(NODE) DECL_VINDEX (NODE)
3282 /* For a class template, this list contains the partial
3283 specializations of this template. (Full specializations are not
3284 recorded on this list.) The TREE_PURPOSE holds the arguments used
3285 in the partial specialization (e.g., for `template <class T> struct
3286 S<T*, int>' this will be `T*'.) The arguments will also include
3287 any outer template arguments. The TREE_VALUE holds the innermost
3288 template parameters for the specialization (e.g., `T' in the
3289 example above.) The TREE_TYPE is the _TYPE node for the partial
3292 This list is not used for other templates. */
3293 #define DECL_TEMPLATE_SPECIALIZATIONS(NODE) DECL_SIZE (NODE)
3295 /* Nonzero for a DECL which is actually a template parameter. Keep
3296 these checks in ascending tree code order. */
3297 #define DECL_TEMPLATE_PARM_P(NODE) \
3298 (DECL_LANG_FLAG_0 (NODE) \
3299 && (TREE_CODE (NODE) == CONST_DECL \
3300 || TREE_CODE (NODE) == PARM_DECL \
3301 || TREE_CODE (NODE) == TYPE_DECL \
3302 || TREE_CODE (NODE) == TEMPLATE_DECL))
3304 /* Mark NODE as a template parameter. */
3305 #define SET_DECL_TEMPLATE_PARM_P(NODE) \
3306 (DECL_LANG_FLAG_0 (NODE) = 1)
3308 /* Nonzero if NODE is a template template parameter. */
3309 #define DECL_TEMPLATE_TEMPLATE_PARM_P(NODE) \
3310 (TREE_CODE (NODE) == TEMPLATE_DECL && DECL_TEMPLATE_PARM_P (NODE))
3312 /* Nonzero if NODE is a TEMPLATE_DECL representing an
3313 UNBOUND_CLASS_TEMPLATE tree node. */
3314 #define DECL_UNBOUND_CLASS_TEMPLATE_P(NODE) \
3315 (TREE_CODE (NODE) == TEMPLATE_DECL && !DECL_TEMPLATE_RESULT (NODE))
3317 #define DECL_FUNCTION_TEMPLATE_P(NODE) \
3318 (TREE_CODE (NODE) == TEMPLATE_DECL \
3319 && !DECL_UNBOUND_CLASS_TEMPLATE_P (NODE) \
3320 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == FUNCTION_DECL)
3322 /* Nonzero for a DECL that represents a template class. */
3323 #define DECL_CLASS_TEMPLATE_P(NODE) \
3324 (TREE_CODE (NODE) == TEMPLATE_DECL \
3325 && DECL_TEMPLATE_RESULT (NODE) != NULL_TREE \
3326 && DECL_IMPLICIT_TYPEDEF_P (DECL_TEMPLATE_RESULT (NODE)))
3328 /* Nonzero if NODE which declares a type. */
3329 #define DECL_DECLARES_TYPE_P(NODE) \
3330 (TREE_CODE (NODE) == TYPE_DECL || DECL_CLASS_TEMPLATE_P (NODE))
3332 /* Nonzero if NODE declares a function. */
3333 #define DECL_DECLARES_FUNCTION_P(NODE) \
3334 (TREE_CODE (NODE) == FUNCTION_DECL || DECL_FUNCTION_TEMPLATE_P (NODE))
3336 /* Nonzero if NODE is the typedef implicitly generated for a type when
3337 the type is declared. In C++, `struct S {};' is roughly
3338 equivalent to `struct S {}; typedef struct S S;' in C.
3339 DECL_IMPLICIT_TYPEDEF_P will hold for the typedef indicated in this
3340 example. In C++, there is a second implicit typedef for each
3341 class, in the scope of `S' itself, so that you can say `S::S'.
3342 DECL_SELF_REFERENCE_P will hold for that second typedef. */
3343 #define DECL_IMPLICIT_TYPEDEF_P(NODE) \
3344 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_2 (NODE))
3345 #define SET_DECL_IMPLICIT_TYPEDEF_P(NODE) \
3346 (DECL_LANG_FLAG_2 (NODE) = 1)
3347 #define DECL_SELF_REFERENCE_P(NODE) \
3348 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_4 (NODE))
3349 #define SET_DECL_SELF_REFERENCE_P(NODE) \
3350 (DECL_LANG_FLAG_4 (NODE) = 1)
3352 /* A `primary' template is one that has its own template header. A
3353 member function of a class template is a template, but not primary.
3354 A member template is primary. Friend templates are primary, too. */
3356 /* Returns the primary template corresponding to these parameters. */
3357 #define DECL_PRIMARY_TEMPLATE(NODE) \
3358 (TREE_TYPE (DECL_INNERMOST_TEMPLATE_PARMS (NODE)))
3360 /* Returns nonzero if NODE is a primary template. */
3361 #define PRIMARY_TEMPLATE_P(NODE) (DECL_PRIMARY_TEMPLATE (NODE) == (NODE))
3363 /* Nonzero iff NODE is a specialization of a template. The value
3364 indicates the type of specializations:
3366 1=implicit instantiation
3368 2=partial or explicit specialization, e.g.:
3370 template <> int min<int> (int, int),
3372 3=explicit instantiation, e.g.:
3374 template int min<int> (int, int);
3376 Note that NODE will be marked as a specialization even if the
3377 template it is instantiating is not a primary template. For
3380 template <typename T> struct O {
3385 both O<int>::f and O<int>::I will be marked as instantiations.
3387 If DECL_USE_TEMPLATE is nonzero, then DECL_TEMPLATE_INFO will also
3389 #define DECL_USE_TEMPLATE(NODE) (DECL_LANG_SPECIFIC (NODE)->u.base.use_template)
3391 /* Like DECL_USE_TEMPLATE, but for class types. */
3392 #define CLASSTYPE_USE_TEMPLATE(NODE) \
3393 (LANG_TYPE_CLASS_CHECK (NODE)->use_template)
3395 /* True if NODE is a specialization of a primary template. */
3396 #define CLASSTYPE_SPECIALIZATION_OF_PRIMARY_TEMPLATE_P(NODE) \
3397 (CLASS_TYPE_P (NODE) \
3398 && CLASSTYPE_USE_TEMPLATE (NODE) \
3399 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE)))
3401 #define DECL_TEMPLATE_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) & 1)
3402 #define CLASSTYPE_TEMPLATE_INSTANTIATION(NODE) \
3403 (CLASSTYPE_USE_TEMPLATE (NODE) & 1)
3405 #define DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) == 2)
3406 #define SET_DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) = 2)
3408 /* Returns true for an explicit or partial specialization of a class
3410 #define CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
3411 (CLASSTYPE_USE_TEMPLATE (NODE) == 2)
3412 #define SET_CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
3413 (CLASSTYPE_USE_TEMPLATE (NODE) = 2)
3415 #define DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 1)
3416 #define SET_DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 1)
3417 #define CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
3418 (CLASSTYPE_USE_TEMPLATE (NODE) == 1)
3419 #define SET_CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
3420 (CLASSTYPE_USE_TEMPLATE (NODE) = 1)
3422 #define DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 3)
3423 #define SET_DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 3)
3424 #define CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
3425 (CLASSTYPE_USE_TEMPLATE (NODE) == 3)
3426 #define SET_CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
3427 (CLASSTYPE_USE_TEMPLATE (NODE) = 3)
3429 /* Nonzero if DECL is a friend function which is an instantiation
3430 from the point of view of the compiler, but not from the point of
3431 view of the language. For example given:
3432 template <class T> struct S { friend void f(T) {}; };
3433 the declaration of `void f(int)' generated when S<int> is
3434 instantiated will not be a DECL_TEMPLATE_INSTANTIATION, but will be
3435 a DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION. */
3436 #define DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION(DECL) \
3437 (DECL_TEMPLATE_INFO (DECL) && !DECL_USE_TEMPLATE (DECL))
3439 /* Nonzero iff we are currently processing a declaration for an
3440 entity with its own template parameter list, and which is not a
3441 full specialization. */
3442 #define PROCESSING_REAL_TEMPLATE_DECL_P() \
3443 (processing_template_decl > template_class_depth (current_scope ()))
3445 /* Nonzero if this VAR_DECL or FUNCTION_DECL has already been
3446 instantiated, i.e. its definition has been generated from the
3447 pattern given in the template. */
3448 #define DECL_TEMPLATE_INSTANTIATED(NODE) \
3449 DECL_LANG_FLAG_1 (VAR_OR_FUNCTION_DECL_CHECK (NODE))
3451 /* We know what we're doing with this decl now. */
3452 #define DECL_INTERFACE_KNOWN(NODE) DECL_LANG_FLAG_5 (NODE)
3454 /* DECL_EXTERNAL must be set on a decl until the decl is actually emitted,
3455 so that assemble_external will work properly. So we have this flag to
3456 tell us whether the decl is really not external.
3458 This flag does not indicate whether or not the decl is defined in the
3459 current translation unit; it indicates whether or not we should emit the
3460 decl at the end of compilation if it is defined and needed. */
3461 #define DECL_NOT_REALLY_EXTERN(NODE) \
3462 (DECL_LANG_SPECIFIC (NODE)->u.base.not_really_extern)
3464 #define DECL_REALLY_EXTERN(NODE) \
3465 (DECL_EXTERNAL (NODE) && ! DECL_NOT_REALLY_EXTERN (NODE))
3467 /* A thunk is a stub function.
3469 A thunk is an alternate entry point for an ordinary FUNCTION_DECL.
3470 The address of the ordinary FUNCTION_DECL is given by the
3471 DECL_INITIAL, which is always an ADDR_EXPR whose operand is a
3472 FUNCTION_DECL. The job of the thunk is to either adjust the this
3473 pointer before transferring control to the FUNCTION_DECL, or call
3474 FUNCTION_DECL and then adjust the result value. Note, the result
3475 pointer adjusting thunk must perform a call to the thunked
3476 function, (or be implemented via passing some invisible parameter
3477 to the thunked function, which is modified to perform the
3478 adjustment just before returning).
3480 A thunk may perform either, or both, of the following operations:
3482 o Adjust the this or result pointer by a constant offset.
3483 o Adjust the this or result pointer by looking up a vcall or vbase offset
3486 A this pointer adjusting thunk converts from a base to a derived
3487 class, and hence adds the offsets. A result pointer adjusting thunk
3488 converts from a derived class to a base, and hence subtracts the
3489 offsets. If both operations are performed, then the constant
3490 adjustment is performed first for this pointer adjustment and last
3491 for the result pointer adjustment.
3493 The constant adjustment is given by THUNK_FIXED_OFFSET. If the
3494 vcall or vbase offset is required, THUNK_VIRTUAL_OFFSET is
3495 used. For this pointer adjusting thunks, it is the vcall offset
3496 into the vtable. For result pointer adjusting thunks it is the
3497 binfo of the virtual base to convert to. Use that binfo's vbase
3500 It is possible to have equivalent covariant thunks. These are
3501 distinct virtual covariant thunks whose vbase offsets happen to
3502 have the same value. THUNK_ALIAS is used to pick one as the
3503 canonical thunk, which will get all the this pointer adjusting
3504 thunks attached to it. */
3506 /* An integer indicating how many bytes should be subtracted from the
3507 this or result pointer when this function is called. */
3508 #define THUNK_FIXED_OFFSET(DECL) \
3509 (DECL_LANG_SPECIFIC (THUNK_FUNCTION_CHECK (DECL))->u.fn.u5.fixed_offset)
3511 /* A tree indicating how to perform the virtual adjustment. For a this
3512 adjusting thunk it is the number of bytes to be added to the vtable
3513 to find the vcall offset. For a result adjusting thunk, it is the
3514 binfo of the relevant virtual base. If NULL, then there is no
3515 virtual adjust. (The vptr is always located at offset zero from
3516 the this or result pointer.) (If the covariant type is within the
3517 class hierarchy being laid out, the vbase index is not yet known
3518 at the point we need to create the thunks, hence the need to use
3521 #define THUNK_VIRTUAL_OFFSET(DECL) \
3522 (LANG_DECL_U2_CHECK (FUNCTION_DECL_CHECK (DECL), 0)->access)
3524 /* A thunk which is equivalent to another thunk. */
3525 #define THUNK_ALIAS(DECL) \
3526 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->u.min.template_info)
3528 /* For thunk NODE, this is the FUNCTION_DECL thunked to. It is
3529 possible for the target to be a thunk too. */
3530 #define THUNK_TARGET(NODE) \
3531 (LANG_DECL_FN_CHECK (NODE)->befriending_classes)
3533 /* True for a SCOPE_REF iff the "template" keyword was used to
3534 indicate that the qualified name denotes a template. */
3535 #define QUALIFIED_NAME_IS_TEMPLATE(NODE) \
3536 (TREE_LANG_FLAG_0 (SCOPE_REF_CHECK (NODE)))
3538 /* True for an OMP_ATOMIC that has dependent parameters. These are stored
3539 as an expr in operand 1, and integer_zero_node in operand 0. */
3540 #define OMP_ATOMIC_DEPENDENT_P(NODE) \
3541 (TREE_CODE (TREE_OPERAND (OMP_ATOMIC_CHECK (NODE), 0)) == INTEGER_CST)
3543 /* Used while gimplifying continue statements bound to OMP_FOR nodes. */
3544 #define OMP_FOR_GIMPLIFYING_P(NODE) \
3545 (TREE_LANG_FLAG_0 (OMP_FOR_CHECK (NODE)))
3547 /* A language-specific token attached to the OpenMP data clauses to
3548 hold code (or code fragments) related to ctors, dtors, and op=.
3549 See semantics.c for details. */
3550 #define CP_OMP_CLAUSE_INFO(NODE) \
3551 TREE_TYPE (OMP_CLAUSE_RANGE_CHECK (NODE, OMP_CLAUSE_PRIVATE, \
3552 OMP_CLAUSE_COPYPRIVATE))
3554 /* These macros provide convenient access to the various _STMT nodes
3555 created when parsing template declarations. */
3556 #define TRY_STMTS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 0)
3557 #define TRY_HANDLERS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 1)
3559 #define EH_SPEC_STMTS(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 0)
3560 #define EH_SPEC_RAISES(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 1)
3562 #define USING_STMT_NAMESPACE(NODE) TREE_OPERAND (USING_STMT_CHECK (NODE), 0)
3564 /* Nonzero if this try block is a function try block. */
3565 #define FN_TRY_BLOCK_P(NODE) TREE_LANG_FLAG_3 (TRY_BLOCK_CHECK (NODE))
3566 #define HANDLER_PARMS(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 0)
3567 #define HANDLER_BODY(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 1)
3568 #define HANDLER_TYPE(NODE) TREE_TYPE (HANDLER_CHECK (NODE))
3570 /* CLEANUP_STMT accessors. The statement(s) covered, the cleanup to run
3571 and the VAR_DECL for which this cleanup exists. */
3572 #define CLEANUP_BODY(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 0)
3573 #define CLEANUP_EXPR(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 1)
3574 #define CLEANUP_DECL(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 2)
3576 /* IF_STMT accessors. These give access to the condition of the if
3577 statement, the then block of the if statement, and the else block
3578 of the if statement if it exists. */
3579 #define IF_COND(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 0)
3580 #define THEN_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 1)
3581 #define ELSE_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 2)
3583 /* WHILE_STMT accessors. These give access to the condition of the
3584 while statement and the body of the while statement, respectively. */
3585 #define WHILE_COND(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 0)
3586 #define WHILE_BODY(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 1)
3588 /* DO_STMT accessors. These give access to the condition of the do
3589 statement and the body of the do statement, respectively. */
3590 #define DO_COND(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 0)
3591 #define DO_BODY(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 1)
3593 /* FOR_STMT accessors. These give access to the init statement,
3594 condition, update expression, and body of the for statement,
3596 #define FOR_INIT_STMT(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 0)
3597 #define FOR_COND(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 1)
3598 #define FOR_EXPR(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 2)
3599 #define FOR_BODY(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 3)
3601 #define SWITCH_STMT_COND(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 0)
3602 #define SWITCH_STMT_BODY(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 1)
3603 #define SWITCH_STMT_TYPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 2)
3605 /* STMT_EXPR accessor. */
3606 #define STMT_EXPR_STMT(NODE) TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0)
3608 /* EXPR_STMT accessor. This gives the expression associated with an
3609 expression statement. */
3610 #define EXPR_STMT_EXPR(NODE) TREE_OPERAND (EXPR_STMT_CHECK (NODE), 0)
3612 /* True if this TARGET_EXPR was created by build_cplus_new, and so we can
3613 discard it if it isn't useful. */
3614 #define TARGET_EXPR_IMPLICIT_P(NODE) \
3615 TREE_LANG_FLAG_0 (TARGET_EXPR_CHECK (NODE))
3617 /* True if this TARGET_EXPR is the result of list-initialization of a
3619 #define TARGET_EXPR_LIST_INIT_P(NODE) \
3620 TREE_LANG_FLAG_1 (TARGET_EXPR_CHECK (NODE))
3622 /* An enumeration of the kind of tags that C++ accepts. */
3624 none_type = 0, /* Not a tag type. */
3625 record_type, /* "struct" types. */
3626 class_type, /* "class" types. */
3627 union_type, /* "union" types. */
3628 enum_type, /* "enum" types. */
3629 typename_type /* "typename" types. */
3632 /* The various kinds of lvalues we distinguish. */
3633 enum cp_lvalue_kind_flags {
3634 clk_none = 0, /* Things that are not an lvalue. */
3635 clk_ordinary = 1, /* An ordinary lvalue. */
3636 clk_rvalueref = 2,/* An rvalue formed using an rvalue reference */
3637 clk_class = 4, /* An rvalue of class-type. */
3638 clk_bitfield = 8, /* An lvalue for a bit-field. */
3639 clk_packed = 16 /* An lvalue for a packed field. */
3642 /* This type is used for parameters and variables which hold
3643 combinations of the flags in enum cp_lvalue_kind_flags. */
3644 typedef int cp_lvalue_kind;
3646 /* Various kinds of template specialization, instantiation, etc. */
3647 typedef enum tmpl_spec_kind {
3648 tsk_none, /* Not a template at all. */
3649 tsk_invalid_member_spec, /* An explicit member template
3650 specialization, but the enclosing
3651 classes have not all been explicitly
3653 tsk_invalid_expl_inst, /* An explicit instantiation containing
3654 template parameter lists. */
3655 tsk_excessive_parms, /* A template declaration with too many
3656 template parameter lists. */
3657 tsk_insufficient_parms, /* A template declaration with too few
3659 tsk_template, /* A template declaration. */
3660 tsk_expl_spec, /* An explicit specialization. */
3661 tsk_expl_inst /* An explicit instantiation. */
3664 /* The various kinds of access. BINFO_ACCESS depends on these being
3665 two bit quantities. The numerical values are important; they are
3666 used to initialize RTTI data structures, so changing them changes
3668 typedef enum access_kind {
3669 ak_none = 0, /* Inaccessible. */
3670 ak_public = 1, /* Accessible, as a `public' thing. */
3671 ak_protected = 2, /* Accessible, as a `protected' thing. */
3672 ak_private = 3 /* Accessible, as a `private' thing. */
3675 /* The various kinds of special functions. If you add to this list,
3676 you should update special_function_p as well. */
3677 typedef enum special_function_kind {
3678 sfk_none = 0, /* Not a special function. This enumeral
3679 must have value zero; see
3680 special_function_p. */
3681 sfk_constructor, /* A constructor. */
3682 sfk_copy_constructor, /* A copy constructor. */
3683 sfk_move_constructor, /* A move constructor. */
3684 sfk_assignment_operator, /* An assignment operator. */
3685 sfk_destructor, /* A destructor. */
3686 sfk_complete_destructor, /* A destructor for complete objects. */
3687 sfk_base_destructor, /* A destructor for base subobjects. */
3688 sfk_deleting_destructor, /* A destructor for complete objects that
3689 deletes the object after it has been
3691 sfk_conversion /* A conversion operator. */
3692 } special_function_kind;
3694 /* The various kinds of linkage. From [basic.link],
3696 A name is said to have linkage when it might denote the same
3697 object, reference, function, type, template, namespace or value
3698 as a name introduced in another scope:
3700 -- When a name has external linkage, the entity it denotes can
3701 be referred to from scopes of other translation units or from
3702 other scopes of the same translation unit.
3704 -- When a name has internal linkage, the entity it denotes can
3705 be referred to by names from other scopes in the same
3708 -- When a name has no linkage, the entity it denotes cannot be
3709 referred to by names from other scopes. */
3711 typedef enum linkage_kind {
3712 lk_none, /* No linkage. */
3713 lk_internal, /* Internal linkage. */
3714 lk_external /* External linkage. */
3717 /* Bitmask flags to control type substitution. */
3719 tf_none = 0, /* nothing special */
3720 tf_error = 1 << 0, /* give error messages */
3721 tf_warning = 1 << 1, /* give warnings too */
3722 tf_ignore_bad_quals = 1 << 2, /* ignore bad cvr qualifiers */
3723 tf_keep_type_decl = 1 << 3, /* retain typedef type decls
3724 (make_typename_type use) */
3725 tf_ptrmem_ok = 1 << 4, /* pointers to member ok (internal
3726 instantiate_type use) */
3727 tf_user = 1 << 5, /* found template must be a user template
3728 (lookup_template_class use) */
3729 tf_conv = 1 << 6, /* We are determining what kind of
3730 conversion might be permissible,
3731 not actually performing the
3733 tf_no_access_control = 1 << 7, /* Do not perform access checks, even
3734 when issuing other errors. */
3735 /* Do not instantiate classes (used by count_non_default_template_args). */
3736 tf_no_class_instantiations = 1 << 8,
3737 /* Convenient substitution flags combinations. */
3738 tf_warning_or_error = tf_warning | tf_error
3741 /* This type is used for parameters and variables which hold
3742 combinations of the flags in enum tsubst_flags. */
3743 typedef int tsubst_flags_t;
3745 /* The kind of checking we can do looking in a class hierarchy. */
3746 enum base_access_flags {
3747 ba_any = 0, /* Do not check access, allow an ambiguous base,
3748 prefer a non-virtual base */
3749 ba_unique = 1 << 0, /* Must be a unique base. */
3750 ba_check_bit = 1 << 1, /* Check access. */
3751 ba_check = ba_unique | ba_check_bit,
3752 ba_ignore_scope = 1 << 2, /* Ignore access allowed by local scope. */
3753 ba_quiet = 1 << 3 /* Do not issue error messages. */
3756 /* This type is used for parameters and variables which hold
3757 combinations of the flags in enum base_access_flags. */
3758 typedef int base_access;
3760 /* The various kinds of access check during parsing. */
3761 typedef enum deferring_kind {
3762 dk_no_deferred = 0, /* Check access immediately */
3763 dk_deferred = 1, /* Deferred check */
3764 dk_no_check = 2 /* No access check */
3767 /* The kind of base we can find, looking in a class hierarchy.
3768 Values <0 indicate we failed. */
3769 typedef enum base_kind {
3770 bk_inaccessible = -3, /* The base is inaccessible */
3771 bk_ambig = -2, /* The base is ambiguous */
3772 bk_not_base = -1, /* It is not a base */
3773 bk_same_type = 0, /* It is the same type */
3774 bk_proper_base = 1, /* It is a proper base */
3775 bk_via_virtual = 2 /* It is a proper base, but via a virtual
3776 path. This might not be the canonical
3780 /* Node for "pointer to (virtual) function".
3781 This may be distinct from ptr_type_node so gdb can distinguish them. */
3782 #define vfunc_ptr_type_node vtable_entry_type
3785 /* For building calls to `delete'. */
3786 extern GTY(()) tree integer_two_node;
3787 extern GTY(()) tree integer_three_node;
3789 /* The number of function bodies which we are currently processing.
3790 (Zero if we are at namespace scope, one inside the body of a
3791 function, two inside the body of a function in a local class, etc.) */
3792 extern int function_depth;
3796 /* Nonzero if we are parsing an unevaluated operand: an operand to
3797 sizeof, typeof, or alignof. This is a count since operands to
3798 sizeof can be nested. */
3800 extern int cp_unevaluated_operand;
3804 /* These values are used for the `STRICT' parameter to type_unification and
3805 fn_type_unification. Their meanings are described with the
3806 documentation for fn_type_unification. */
3808 typedef enum unification_kind_t {
3812 } unification_kind_t;
3816 extern int current_class_depth;
3818 /* An array of all local classes present in this translation unit, in
3819 declaration order. */
3820 extern GTY(()) VEC(tree,gc) *local_classes;
3822 /* Here's where we control how name mangling takes place. */
3824 /* Cannot use '$' up front, because this confuses gdb
3825 (names beginning with '$' are gdb-local identifiers).
3827 Note that all forms in which the '$' is significant are long enough
3828 for direct indexing (meaning that if we know there is a '$'
3829 at a particular location, we can index into the string at
3830 any other location that provides distinguishing characters). */
3832 /* Define NO_DOT_IN_LABEL in your favorite tm file if your assembler
3833 doesn't allow '.' in symbol names. */
3834 #ifndef NO_DOT_IN_LABEL
3838 #define AUTO_TEMP_NAME "_.tmp_"
3839 #define VFIELD_BASE ".vf"
3840 #define VFIELD_NAME "_vptr."
3841 #define VFIELD_NAME_FORMAT "_vptr.%s"
3843 #define ANON_AGGRNAME_FORMAT "._%d"
3845 #else /* NO_DOT_IN_LABEL */
3847 #ifndef NO_DOLLAR_IN_LABEL
3851 #define AUTO_TEMP_NAME "_$tmp_"
3852 #define VFIELD_BASE "$vf"
3853 #define VFIELD_NAME "_vptr$"
3854 #define VFIELD_NAME_FORMAT "_vptr$%s"
3855 #define ANON_AGGRNAME_FORMAT "$_%d"
3857 #else /* NO_DOLLAR_IN_LABEL */
3859 #define IN_CHARGE_NAME "__in_chrg"
3860 #define AUTO_TEMP_NAME "__tmp_"
3861 #define TEMP_NAME_P(ID_NODE) \
3862 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, \
3863 sizeof (AUTO_TEMP_NAME) - 1))
3864 #define VTABLE_NAME "__vt_"
3865 #define VTABLE_NAME_P(ID_NODE) \
3866 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VTABLE_NAME, \
3867 sizeof (VTABLE_NAME) - 1))
3868 #define VFIELD_BASE "__vfb"
3869 #define VFIELD_NAME "__vptr_"
3870 #define VFIELD_NAME_P(ID_NODE) \
3871 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, \
3872 sizeof (VFIELD_NAME) - 1))
3873 #define VFIELD_NAME_FORMAT "__vptr_%s"
3875 #define ANON_AGGRNAME_PREFIX "__anon_"
3876 #define ANON_AGGRNAME_P(ID_NODE) \
3877 (!strncmp (IDENTIFIER_POINTER (ID_NODE), ANON_AGGRNAME_PREFIX, \
3878 sizeof (ANON_AGGRNAME_PREFIX) - 1))
3879 #define ANON_AGGRNAME_FORMAT "__anon_%d"
3881 #endif /* NO_DOLLAR_IN_LABEL */
3882 #endif /* NO_DOT_IN_LABEL */
3884 #define THIS_NAME "this"
3886 #define IN_CHARGE_NAME "__in_chrg"
3888 #define VTBL_PTR_TYPE "__vtbl_ptr_type"
3889 #define VTABLE_DELTA_NAME "__delta"
3890 #define VTABLE_PFN_NAME "__pfn"
3892 #define LAMBDANAME_PREFIX "__lambda"
3893 #define LAMBDANAME_FORMAT LAMBDANAME_PREFIX "%d"
3894 #define LAMBDANAME_P(ID_NODE) \
3895 (!strncmp (IDENTIFIER_POINTER (ID_NODE), \
3896 LAMBDANAME_PREFIX, \
3897 sizeof (LAMBDANAME_PREFIX) - 1))
3899 #if !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL)
3901 #define VTABLE_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == 'v' \
3902 && IDENTIFIER_POINTER (ID_NODE)[2] == 't' \
3903 && IDENTIFIER_POINTER (ID_NODE)[3] == JOINER)
3905 #define TEMP_NAME_P(ID_NODE) \
3906 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, sizeof (AUTO_TEMP_NAME)-1))
3907 #define VFIELD_NAME_P(ID_NODE) \
3908 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, sizeof(VFIELD_NAME)-1))
3910 /* For anonymous aggregate types, we need some sort of name to
3911 hold on to. In practice, this should not appear, but it should
3912 not be harmful if it does. */
3913 #define ANON_AGGRNAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[0] == JOINER \
3914 && IDENTIFIER_POINTER (ID_NODE)[1] == '_')
3915 #endif /* !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) */
3918 /* Nonzero if we're done parsing and into end-of-file activities. */
3922 /* A list of namespace-scope objects which have constructors or
3923 destructors which reside in the global scope. The decl is stored
3924 in the TREE_VALUE slot and the initializer is stored in the
3925 TREE_PURPOSE slot. */
3926 extern GTY(()) tree static_aggregates;
3928 enum overload_flags { NO_SPECIAL = 0, DTOR_FLAG, TYPENAME_FLAG };
3930 /* These are uses as bits in flags passed to various functions to
3931 control their behavior. Despite the LOOKUP_ prefix, many of these
3932 do not control name lookup. ??? Functions using these flags should
3933 probably be modified to accept explicit boolean flags for the
3934 behaviors relevant to them. */
3935 /* Check for access violations. */
3936 #define LOOKUP_PROTECT (1 << 0)
3937 /* Complain if no suitable member function matching the arguments is
3939 #define LOOKUP_COMPLAIN (1 << 1)
3940 #define LOOKUP_NORMAL (LOOKUP_PROTECT | LOOKUP_COMPLAIN)
3941 /* Even if the function found by lookup is a virtual function, it
3942 should be called directly. */
3943 #define LOOKUP_NONVIRTUAL (1 << 2)
3944 /* Non-converting (i.e., "explicit") constructors are not tried. This flag
3945 indicates that we are not performing direct-initialization. */
3946 #define LOOKUP_ONLYCONVERTING (1 << 3)
3947 #define LOOKUP_IMPLICIT (LOOKUP_NORMAL | LOOKUP_ONLYCONVERTING)
3948 /* If a temporary is created, it should be created so that it lives
3949 as long as the current variable bindings; otherwise it only lives
3950 until the end of the complete-expression. It also forces
3951 direct-initialization in cases where other parts of the compiler
3952 have already generated a temporary, such as reference
3953 initialization and the catch parameter. */
3954 #define DIRECT_BIND (1 << 4)
3955 /* User-defined conversions are not permitted. (Built-in conversions
3957 #define LOOKUP_NO_CONVERSION (1 << 5)
3958 /* The user has explicitly called a destructor. (Therefore, we do
3959 not need to check that the object is non-NULL before calling the
3961 #define LOOKUP_DESTRUCTOR (1 << 6)
3962 /* Do not permit references to bind to temporaries. */
3963 #define LOOKUP_NO_TEMP_BIND (1 << 7)
3964 /* Do not accept objects, and possibly namespaces. */
3965 #define LOOKUP_PREFER_TYPES (1 << 8)
3966 /* Do not accept objects, and possibly types. */
3967 #define LOOKUP_PREFER_NAMESPACES (1 << 9)
3968 /* Accept types or namespaces. */
3969 #define LOOKUP_PREFER_BOTH (LOOKUP_PREFER_TYPES | LOOKUP_PREFER_NAMESPACES)
3970 /* Return friend declarations and un-declared builtin functions.
3971 (Normally, these entities are registered in the symbol table, but
3972 not found by lookup.) */
3973 #define LOOKUP_HIDDEN (LOOKUP_PREFER_NAMESPACES << 1)
3974 /* Prefer that the lvalue be treated as an rvalue. */
3975 #define LOOKUP_PREFER_RVALUE (LOOKUP_HIDDEN << 1)
3976 /* We're inside an init-list, so narrowing conversions are ill-formed. */
3977 #define LOOKUP_NO_NARROWING (LOOKUP_PREFER_RVALUE << 1)
3978 /* Avoid user-defined conversions for the first parameter of a copy
3980 #define LOOKUP_NO_COPY_CTOR_CONVERSION (LOOKUP_NO_NARROWING << 1)
3981 /* This is the first parameter of a copy constructor. */
3982 #define LOOKUP_COPY_PARM (LOOKUP_NO_COPY_CTOR_CONVERSION << 1)
3984 #define LOOKUP_NAMESPACES_ONLY(F) \
3985 (((F) & LOOKUP_PREFER_NAMESPACES) && !((F) & LOOKUP_PREFER_TYPES))
3986 #define LOOKUP_TYPES_ONLY(F) \
3987 (!((F) & LOOKUP_PREFER_NAMESPACES) && ((F) & LOOKUP_PREFER_TYPES))
3988 #define LOOKUP_QUALIFIERS_ONLY(F) ((F) & LOOKUP_PREFER_BOTH)
3991 /* These flags are used by the conversion code.
3992 CONV_IMPLICIT : Perform implicit conversions (standard and user-defined).
3993 CONV_STATIC : Perform the explicit conversions for static_cast.
3994 CONV_CONST : Perform the explicit conversions for const_cast.
3995 CONV_REINTERPRET: Perform the explicit conversions for reinterpret_cast.
3996 CONV_PRIVATE : Perform upcasts to private bases.
3997 CONV_FORCE_TEMP : Require a new temporary when converting to the same
4000 #define CONV_IMPLICIT 1
4001 #define CONV_STATIC 2
4002 #define CONV_CONST 4
4003 #define CONV_REINTERPRET 8
4004 #define CONV_PRIVATE 16
4005 /* #define CONV_NONCONVERTING 32 */
4006 #define CONV_FORCE_TEMP 64
4007 #define CONV_OLD_CONVERT (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
4009 #define CONV_C_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
4010 | CONV_REINTERPRET | CONV_PRIVATE | CONV_FORCE_TEMP)
4012 /* Used by build_expr_type_conversion to indicate which types are
4013 acceptable as arguments to the expression under consideration. */
4015 #define WANT_INT 1 /* integer types, including bool */
4016 #define WANT_FLOAT 2 /* floating point types */
4017 #define WANT_ENUM 4 /* enumerated types */
4018 #define WANT_POINTER 8 /* pointer types */
4019 #define WANT_NULL 16 /* null pointer constant */
4020 #define WANT_VECTOR 32 /* vector types */
4021 #define WANT_ARITH (WANT_INT | WANT_FLOAT | WANT_VECTOR)
4023 /* Used with comptypes, and related functions, to guide type
4026 #define COMPARE_STRICT 0 /* Just check if the types are the
4028 #define COMPARE_BASE 1 /* Check to see if the second type is
4029 derived from the first. */
4030 #define COMPARE_DERIVED 2 /* Like COMPARE_BASE, but in
4032 #define COMPARE_REDECLARATION 4 /* The comparison is being done when
4033 another declaration of an existing
4035 #define COMPARE_STRUCTURAL 8 /* The comparison is intended to be
4036 structural. The actual comparison
4037 will be identical to
4040 /* Used with push_overloaded_decl. */
4041 #define PUSH_GLOBAL 0 /* Push the DECL into namespace scope,
4042 regardless of the current scope. */
4043 #define PUSH_LOCAL 1 /* Push the DECL into the current
4045 #define PUSH_USING 2 /* We are pushing this DECL as the
4046 result of a using declaration. */
4048 /* Used with start function. */
4049 #define SF_DEFAULT 0 /* No flags. */
4050 #define SF_PRE_PARSED 1 /* The function declaration has
4051 already been parsed. */
4052 #define SF_INCLASS_INLINE 2 /* The function is an inline, defined
4053 in the class body. */
4055 /* Used with start_decl's initialized parameter. */
4056 #define SD_UNINITIALIZED 0
4057 #define SD_INITIALIZED 1
4058 #define SD_DEFAULTED 2
4059 #define SD_DELETED 3
4061 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, or if TYPE2
4062 is derived from TYPE1, or if TYPE2 is a pointer (reference) to a
4063 class derived from the type pointed to (referred to) by TYPE1. */
4064 #define same_or_base_type_p(TYPE1, TYPE2) \
4065 comptypes ((TYPE1), (TYPE2), COMPARE_BASE)
4067 /* These macros are used to access a TEMPLATE_PARM_INDEX. */
4068 #define TEMPLATE_PARM_INDEX_CAST(NODE) \
4069 ((template_parm_index*)TEMPLATE_PARM_INDEX_CHECK (NODE))
4070 #define TEMPLATE_PARM_IDX(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->index)
4071 #define TEMPLATE_PARM_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->level)
4072 #define TEMPLATE_PARM_DESCENDANTS(NODE) (TREE_CHAIN (NODE))
4073 #define TEMPLATE_PARM_ORIG_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->orig_level)
4074 #define TEMPLATE_PARM_DECL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->decl)
4075 #define TEMPLATE_PARM_PARAMETER_PACK(NODE) \
4076 (TREE_LANG_FLAG_0 (TEMPLATE_PARM_INDEX_CHECK (NODE)))
4078 /* These macros are for accessing the fields of TEMPLATE_TYPE_PARM,
4079 TEMPLATE_TEMPLATE_PARM and BOUND_TEMPLATE_TEMPLATE_PARM nodes. */
4080 #define TEMPLATE_TYPE_PARM_INDEX(NODE) \
4081 (TREE_CHECK3 ((NODE), TEMPLATE_TYPE_PARM, TEMPLATE_TEMPLATE_PARM, \
4082 BOUND_TEMPLATE_TEMPLATE_PARM))->type.values
4083 #define TEMPLATE_TYPE_IDX(NODE) \
4084 (TEMPLATE_PARM_IDX (TEMPLATE_TYPE_PARM_INDEX (NODE)))
4085 #define TEMPLATE_TYPE_LEVEL(NODE) \
4086 (TEMPLATE_PARM_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
4087 #define TEMPLATE_TYPE_ORIG_LEVEL(NODE) \
4088 (TEMPLATE_PARM_ORIG_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
4089 #define TEMPLATE_TYPE_DECL(NODE) \
4090 (TEMPLATE_PARM_DECL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
4091 #define TEMPLATE_TYPE_PARAMETER_PACK(NODE) \
4092 (TEMPLATE_PARM_PARAMETER_PACK (TEMPLATE_TYPE_PARM_INDEX (NODE)))
4094 /* These constants can used as bit flags in the process of tree formatting.
4096 TFF_PLAIN_IDENTIFIER: unqualified part of a name.
4097 TFF_SCOPE: include the class and namespace scope of the name.
4098 TFF_CHASE_TYPEDEF: print the original type-id instead of the typedef-name.
4099 TFF_DECL_SPECIFIERS: print decl-specifiers.
4100 TFF_CLASS_KEY_OR_ENUM: precede a class-type name (resp. enum name) with
4101 a class-key (resp. `enum').
4102 TFF_RETURN_TYPE: include function return type.
4103 TFF_FUNCTION_DEFAULT_ARGUMENTS: include function default parameter values.
4104 TFF_EXCEPTION_SPECIFICATION: show function exception specification.
4105 TFF_TEMPLATE_HEADER: show the template<...> header in a
4106 template-declaration.
4107 TFF_TEMPLATE_NAME: show only template-name.
4108 TFF_EXPR_IN_PARENS: parenthesize expressions.
4109 TFF_NO_FUNCTION_ARGUMENTS: don't show function arguments.
4110 TFF_UNQUALIFIED_NAME: do not print the qualifying scope of the
4112 TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS: do not omit template arguments
4113 identical to their defaults. */
4115 #define TFF_PLAIN_IDENTIFIER (0)
4116 #define TFF_SCOPE (1)
4117 #define TFF_CHASE_TYPEDEF (1 << 1)
4118 #define TFF_DECL_SPECIFIERS (1 << 2)
4119 #define TFF_CLASS_KEY_OR_ENUM (1 << 3)
4120 #define TFF_RETURN_TYPE (1 << 4)
4121 #define TFF_FUNCTION_DEFAULT_ARGUMENTS (1 << 5)
4122 #define TFF_EXCEPTION_SPECIFICATION (1 << 6)
4123 #define TFF_TEMPLATE_HEADER (1 << 7)
4124 #define TFF_TEMPLATE_NAME (1 << 8)
4125 #define TFF_EXPR_IN_PARENS (1 << 9)
4126 #define TFF_NO_FUNCTION_ARGUMENTS (1 << 10)
4127 #define TFF_UNQUALIFIED_NAME (1 << 11)
4128 #define TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS (1 << 12)
4130 /* Returns the TEMPLATE_DECL associated to a TEMPLATE_TEMPLATE_PARM
4132 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_DECL(NODE) \
4133 ((TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM) \
4134 ? TYPE_TI_TEMPLATE (NODE) \
4139 extern void init_reswords (void);
4141 typedef struct GTY(()) operator_name_info_t {
4142 /* The IDENTIFIER_NODE for the operator. */
4144 /* The name of the operator. */
4146 /* The mangled name of the operator. */
4147 const char *mangled_name;
4148 /* The arity of the operator. */
4150 } operator_name_info_t;
4152 /* A mapping from tree codes to operator name information. */
4153 extern GTY(()) operator_name_info_t operator_name_info
4154 [(int) MAX_TREE_CODES];
4155 /* Similar, but for assignment operators. */
4156 extern GTY(()) operator_name_info_t assignment_operator_name_info
4157 [(int) MAX_TREE_CODES];
4159 /* A type-qualifier, or bitmask therefore, using the TYPE_QUAL
4162 typedef int cp_cv_quals;
4164 /* A storage class. */
4166 typedef enum cp_storage_class {
4167 /* sc_none must be zero so that zeroing a cp_decl_specifier_seq
4168 sets the storage_class field to sc_none. */
4177 /* An individual decl-specifier. */
4179 typedef enum cp_decl_spec {
4181 ds_signed = ds_first,
4198 /* A decl-specifier-seq. */
4200 typedef struct cp_decl_specifier_seq {
4201 /* The number of times each of the keywords has been seen. */
4202 unsigned specs[(int) ds_last];
4203 /* The primary type, if any, given by the decl-specifier-seq.
4204 Modifiers, like "short", "const", and "unsigned" are not
4205 reflected here. This field will be a TYPE, unless a typedef-name
4206 was used, in which case it will be a TYPE_DECL. */
4208 /* The location of the primary type. Mainly used for error
4210 location_t type_location;
4211 /* The attributes, if any, provided with the specifier sequence. */
4213 /* If non-NULL, a built-in type that the user attempted to redefine
4214 to some other type. */
4215 tree redefined_builtin_type;
4216 /* The storage class specified -- or sc_none if no storage class was
4217 explicitly specified. */
4218 cp_storage_class storage_class;
4219 /* True iff TYPE_SPEC indicates a user-defined type. */
4220 BOOL_BITFIELD user_defined_type_p : 1;
4221 /* True iff multiple types were (erroneously) specified for this
4222 decl-specifier-seq. */
4223 BOOL_BITFIELD multiple_types_p : 1;
4224 /* True iff multiple storage classes were (erroneously) specified
4225 for this decl-specifier-seq or a combination of a storage class
4226 with a typedef specifier. */
4227 BOOL_BITFIELD conflicting_specifiers_p : 1;
4228 /* True iff at least one decl-specifier was found. */
4229 BOOL_BITFIELD any_specifiers_p : 1;
4230 /* True iff "int" was explicitly provided. */
4231 BOOL_BITFIELD explicit_int_p : 1;
4232 /* True iff "char" was explicitly provided. */
4233 BOOL_BITFIELD explicit_char_p : 1;
4234 } cp_decl_specifier_seq;
4236 /* The various kinds of declarators. */
4238 typedef enum cp_declarator_kind {
4246 } cp_declarator_kind;
4250 typedef struct cp_declarator cp_declarator;
4252 typedef struct cp_parameter_declarator cp_parameter_declarator;
4254 /* A parameter, before it has been semantically analyzed. */
4255 struct cp_parameter_declarator {
4256 /* The next parameter, or NULL_TREE if none. */
4257 cp_parameter_declarator *next;
4258 /* The decl-specifiers-seq for the parameter. */
4259 cp_decl_specifier_seq decl_specifiers;
4260 /* The declarator for the parameter. */
4261 cp_declarator *declarator;
4262 /* The default-argument expression, or NULL_TREE, if none. */
4263 tree default_argument;
4264 /* True iff this is the first parameter in the list and the
4265 parameter sequence ends with an ellipsis. */
4270 struct cp_declarator {
4271 /* The kind of declarator. */
4272 ENUM_BITFIELD (cp_declarator_kind) kind : 4;
4273 /* Whether we parsed an ellipsis (`...') just before the declarator,
4274 to indicate this is a parameter pack. */
4275 BOOL_BITFIELD parameter_pack_p : 1;
4276 /* Attributes that apply to this declarator. */
4278 /* For all but cdk_id and cdk_error, the contained declarator. For
4279 cdk_id and cdk_error, guaranteed to be NULL. */
4280 cp_declarator *declarator;
4281 location_t id_loc; /* Currently only set for cdk_id and cdk_function. */
4283 /* For identifiers. */
4285 /* If non-NULL, the qualifying scope (a NAMESPACE_DECL or
4286 *_TYPE) for this identifier. */
4287 tree qualifying_scope;
4288 /* The unqualified name of the entity -- an IDENTIFIER_NODE,
4289 BIT_NOT_EXPR, or TEMPLATE_ID_EXPR. */
4290 tree unqualified_name;
4291 /* If this is the name of a function, what kind of special
4292 function (if any). */
4293 special_function_kind sfk;
4295 /* For functions. */
4297 /* The parameters to the function as a TREE_LIST of decl/default. */
4299 /* The cv-qualifiers for the function. */
4300 cp_cv_quals qualifiers;
4301 /* The exception-specification for the function. */
4302 tree exception_specification;
4303 /* The late-specified return type, if any. */
4304 tree late_return_type;
4308 /* The bounds to the array. */
4311 /* For cdk_pointer and cdk_ptrmem. */
4313 /* The cv-qualifiers for the pointer. */
4314 cp_cv_quals qualifiers;
4315 /* For cdk_ptrmem, the class type containing the member. */
4318 /* For cdk_reference */
4320 /* The cv-qualifiers for the reference. These qualifiers are
4321 only used to diagnose ill-formed code. */
4322 cp_cv_quals qualifiers;
4323 /* Whether this is an rvalue reference */
4329 /* A level of template instantiation. */
4330 struct GTY(()) tinst_level {
4331 /* The immediately deeper level in the chain. */
4332 struct tinst_level *next;
4334 /* The original node. Can be either a DECL (for a function or static
4335 data member) or a TYPE (for a class), depending on what we were
4336 asked to instantiate. */
4339 /* The location where the template is instantiated. */
4342 /* True if the location is in a system header. */
4343 bool in_system_header_p;
4346 /* A parameter list indicating for a function with no parameters,
4347 e.g "int f(void)". */
4348 extern cp_parameter_declarator *no_parameters;
4350 /* True if we saw "#pragma GCC java_exceptions". */
4351 extern bool pragma_java_exceptions;
4354 extern bool check_dtor_name (tree, tree);
4356 extern tree build_conditional_expr (tree, tree, tree,
4358 extern tree build_addr_func (tree);
4359 extern tree build_call_a (tree, int, tree*);
4360 extern tree build_call_n (tree, int, ...);
4361 extern bool null_ptr_cst_p (tree);
4362 extern bool sufficient_parms_p (const_tree);
4363 extern tree type_decays_to (tree);
4364 extern tree build_user_type_conversion (tree, tree, int);
4365 extern tree build_new_function_call (tree, VEC(tree,gc) **, bool,
4367 extern tree build_operator_new_call (tree, VEC(tree,gc) **, tree *,
4369 extern tree build_new_method_call (tree, tree, VEC(tree,gc) **,
4372 extern tree build_special_member_call (tree, tree, VEC(tree,gc) **,
4373 tree, int, tsubst_flags_t);
4374 extern tree build_new_op (enum tree_code, int, tree,
4377 extern tree build_op_call (tree, VEC(tree,gc) **,
4379 extern tree build_op_delete_call (enum tree_code, tree, tree, bool, tree, tree);
4380 extern bool can_convert (tree, tree);
4381 extern bool can_convert_arg (tree, tree, tree, int);
4382 extern bool can_convert_arg_bad (tree, tree, tree, int);
4383 extern bool enforce_access (tree, tree, tree);
4384 extern tree convert_default_arg (tree, tree, tree, int);
4385 extern tree convert_arg_to_ellipsis (tree);
4386 extern tree build_x_va_arg (tree, tree);
4387 extern tree cxx_type_promotes_to (tree);
4388 extern tree type_passed_as (tree);
4389 extern tree convert_for_arg_passing (tree, tree);
4390 extern bool is_properly_derived_from (tree, tree);
4391 extern tree set_up_extended_ref_temp (tree, tree, tree *, tree *);
4392 extern tree initialize_reference (tree, tree, tree, tree *);
4393 extern tree make_temporary_var_for_ref_to_temp (tree, tree);
4394 extern tree strip_top_quals (tree);
4395 extern bool reference_related_p (tree, tree);
4396 extern tree perform_implicit_conversion (tree, tree, tsubst_flags_t);
4397 extern tree perform_implicit_conversion_flags (tree, tree, tsubst_flags_t, int);
4398 extern tree perform_direct_initialization_if_possible (tree, tree, bool,
4400 extern tree in_charge_arg_for_name (tree);
4401 extern tree build_cxx_call (tree, int, tree *);
4402 extern bool is_std_init_list (tree);
4403 extern bool is_list_ctor (tree);
4404 #ifdef ENABLE_CHECKING
4405 extern void validate_conversion_obstack (void);
4406 #endif /* ENABLE_CHECKING */
4409 extern tree build_vfield_ref (tree, tree);
4410 extern tree build_base_path (enum tree_code, tree,
4412 extern tree convert_to_base (tree, tree, bool, bool);
4413 extern tree convert_to_base_statically (tree, tree);
4414 extern tree build_vtbl_ref (tree, tree);
4415 extern tree build_vfn_ref (tree, tree);
4416 extern tree get_vtable_decl (tree, int);
4417 extern void resort_type_method_vec (void *, void *,
4418 gt_pointer_operator, void *);
4419 extern bool add_method (tree, tree, tree);
4420 extern bool currently_open_class (tree);
4421 extern tree currently_open_derived_class (tree);
4422 extern tree finish_struct (tree, tree);
4423 extern void finish_struct_1 (tree);
4424 extern int resolves_to_fixed_type_p (tree, int *);
4425 extern void init_class_processing (void);
4426 extern int is_empty_class (tree);
4427 extern bool is_really_empty_class (tree);
4428 extern void pushclass (tree);
4429 extern void popclass (void);
4430 extern void push_nested_class (tree);
4431 extern void pop_nested_class (void);
4432 extern int current_lang_depth (void);
4433 extern void push_lang_context (tree);
4434 extern void pop_lang_context (void);
4435 extern tree instantiate_type (tree, tree, tsubst_flags_t);
4436 extern void print_class_statistics (void);
4437 extern void build_self_reference (void);
4438 extern int same_signature_p (const_tree, const_tree);
4439 extern void maybe_add_class_template_decl_list (tree, tree, int);
4440 extern void unreverse_member_declarations (tree);
4441 extern void invalidate_class_lookup_cache (void);
4442 extern void maybe_note_name_used_in_class (tree, tree);
4443 extern void note_name_declared_in_class (tree, tree);
4444 extern tree get_vtbl_decl_for_binfo (tree);
4445 extern void debug_class (tree);
4446 extern void debug_thunks (tree);
4447 extern tree cp_fold_obj_type_ref (tree, tree);
4448 extern void set_linkage_according_to_type (tree, tree);
4449 extern void determine_key_method (tree);
4450 extern void check_for_override (tree, tree);
4451 extern void push_class_stack (void);
4452 extern void pop_class_stack (void);
4453 extern bool type_has_user_nondefault_constructor (tree);
4454 extern bool type_has_user_provided_constructor (tree);
4455 extern bool type_has_user_provided_default_constructor (tree);
4456 extern bool defaultable_fn_p (tree);
4457 extern void fixup_type_variants (tree);
4458 extern tree* decl_cloned_function_p (const_tree, bool);
4459 extern void clone_function_decl (tree, int);
4460 extern void adjust_clone_args (tree);
4463 extern tree convert_to_reference (tree, tree, int, int, tree);
4464 extern tree convert_from_reference (tree);
4465 extern tree force_rvalue (tree);
4466 extern tree ocp_convert (tree, tree, int, int);
4467 extern tree cp_convert (tree, tree);
4468 extern tree cp_convert_and_check (tree, tree);
4469 extern tree cp_fold_convert (tree, tree);
4470 extern tree convert_to_void (tree, const char */*implicit context*/,
4472 extern tree convert_force (tree, tree, int);
4473 extern tree build_expr_type_conversion (int, tree, bool);
4474 extern tree type_promotes_to (tree);
4475 extern tree perform_qualification_conversions (tree, tree);
4477 /* in name-lookup.c */
4478 extern tree get_anonymous_namespace_name (void);
4479 extern tree pushdecl (tree);
4480 extern tree pushdecl_maybe_friend (tree, bool);
4481 extern void maybe_push_cleanup_level (tree);
4482 extern tree pushtag (tree, tree, tag_scope);
4483 extern tree make_anon_name (void);
4484 extern tree pushdecl_top_level_maybe_friend (tree, bool);
4485 extern tree pushdecl_top_level_and_finish (tree, tree);
4486 extern tree check_for_out_of_scope_variable (tree);
4487 extern void print_other_binding_stack (struct cp_binding_level *);
4488 extern tree maybe_push_decl (tree);
4491 extern tree poplevel (int, int, int);
4492 extern void cxx_init_decl_processing (void);
4493 enum cp_tree_node_structure_enum cp_tree_node_structure
4494 (union lang_tree_node *);
4495 extern void finish_scope (void);
4496 extern void push_switch (tree);
4497 extern void pop_switch (void);
4498 extern tree make_lambda_name (void);
4499 extern int decls_match (tree, tree);
4500 extern tree duplicate_decls (tree, tree, bool);
4501 extern tree declare_local_label (tree);
4502 extern tree define_label (location_t, tree);
4503 extern void check_goto (tree);
4504 extern bool check_omp_return (void);
4505 extern tree make_typename_type (tree, tree, enum tag_types, tsubst_flags_t);
4506 extern tree make_unbound_class_template (tree, tree, tree, tsubst_flags_t);
4507 extern tree build_library_fn_ptr (const char *, tree);
4508 extern tree build_cp_library_fn_ptr (const char *, tree);
4509 extern tree push_library_fn (tree, tree, tree);
4510 extern tree push_void_library_fn (tree, tree);
4511 extern tree push_throw_library_fn (tree, tree);
4512 extern tree check_tag_decl (cp_decl_specifier_seq *);
4513 extern tree shadow_tag (cp_decl_specifier_seq *);
4514 extern tree groktypename (cp_decl_specifier_seq *, const cp_declarator *, bool);
4515 extern tree start_decl (const cp_declarator *, cp_decl_specifier_seq *, int, tree, tree, tree *);
4516 extern void start_decl_1 (tree, bool);
4517 extern bool check_array_initializer (tree, tree, tree);
4518 extern void cp_finish_decl (tree, tree, bool, tree, int);
4519 extern int cp_complete_array_type (tree *, tree, bool);
4520 extern tree build_ptrmemfunc_type (tree);
4521 extern tree build_ptrmem_type (tree, tree);
4522 /* the grokdeclarator prototype is in decl.h */
4523 extern tree build_this_parm (tree, cp_cv_quals);
4524 extern int copy_fn_p (const_tree);
4525 extern bool move_fn_p (const_tree);
4526 extern tree get_scope_of_declarator (const cp_declarator *);
4527 extern void grok_special_member_properties (tree);
4528 extern int grok_ctor_properties (const_tree, const_tree);
4529 extern bool grok_op_properties (tree, bool);
4530 extern tree xref_tag (enum tag_types, tree, tag_scope, bool);
4531 extern tree xref_tag_from_type (tree, tree, tag_scope);
4532 extern bool xref_basetypes (tree, tree);
4533 extern tree start_enum (tree, tree, bool);
4534 extern void finish_enum (tree);
4535 extern void build_enumerator (tree, tree, tree);
4536 extern tree lookup_enumerator (tree, tree);
4537 extern void start_preparsed_function (tree, tree, int);
4538 extern int start_function (cp_decl_specifier_seq *, const cp_declarator *, tree);
4539 extern tree begin_function_body (void);
4540 extern void finish_function_body (tree);
4541 extern tree outer_curly_brace_block (tree);
4542 extern tree finish_function (int);
4543 extern tree grokmethod (cp_decl_specifier_seq *, const cp_declarator *, tree);
4544 extern void maybe_register_incomplete_var (tree);
4545 extern void maybe_commonize_var (tree);
4546 extern void complete_vars (tree);
4547 extern void finish_stmt (void);
4548 extern void revert_static_member_fn (tree);
4549 extern void fixup_anonymous_aggr (tree);
4550 extern int check_static_variable_definition (tree, tree);
4551 extern tree compute_array_index_type (tree, tree);
4552 extern tree check_default_argument (tree, tree);
4553 typedef int (*walk_namespaces_fn) (tree, void *);
4554 extern int walk_namespaces (walk_namespaces_fn,
4556 extern int wrapup_globals_for_namespace (tree, void *);
4557 extern tree create_implicit_typedef (tree, tree);
4558 extern int local_variable_p (const_tree);
4559 extern tree register_dtor_fn (tree);
4560 extern tmpl_spec_kind current_tmpl_spec_kind (int);
4561 extern tree cp_fname_init (const char *, tree *);
4562 extern tree cxx_builtin_function (tree decl);
4563 extern tree cxx_builtin_function_ext_scope (tree decl);
4564 extern tree check_elaborated_type_specifier (enum tag_types, tree, bool);
4565 extern void warn_extern_redeclared_static (tree, tree);
4566 extern tree cxx_comdat_group (tree);
4567 extern bool cp_missing_noreturn_ok_p (tree);
4568 extern void initialize_artificial_var (tree, tree);
4569 extern tree check_var_type (tree, tree);
4570 extern tree reshape_init (tree, tree);
4572 extern bool defer_mark_used_calls;
4573 extern GTY(()) VEC(tree, gc) *deferred_mark_used_calls;
4574 extern tree finish_case_label (location_t, tree, tree);
4575 extern tree cxx_maybe_build_cleanup (tree);
4578 extern bool check_java_method (tree);
4579 extern tree build_memfn_type (tree, tree, cp_cv_quals);
4580 extern void maybe_retrofit_in_chrg (tree);
4581 extern void maybe_make_one_only (tree);
4582 extern bool vague_linkage_fn_p (tree);
4583 extern void grokclassfn (tree, tree,
4584 enum overload_flags);
4585 extern tree grok_array_decl (tree, tree);
4586 extern tree delete_sanity (tree, tree, bool, int);
4587 extern tree check_classfn (tree, tree, tree);
4588 extern void check_member_template (tree);
4589 extern tree grokfield (const cp_declarator *, cp_decl_specifier_seq *,
4590 tree, bool, tree, tree);
4591 extern tree grokbitfield (const cp_declarator *, cp_decl_specifier_seq *,
4593 extern tree cp_reconstruct_complex_type (tree, tree);
4594 extern void cplus_decl_attributes (tree *, tree, int);
4595 extern void finish_anon_union (tree);
4596 extern void cp_write_global_declarations (void);
4597 extern tree coerce_new_type (tree);
4598 extern tree coerce_delete_type (tree);
4599 extern void comdat_linkage (tree);
4600 extern void determine_visibility (tree);
4601 extern void constrain_class_visibility (tree);
4602 extern void import_export_decl (tree);
4603 extern tree build_cleanup (tree);
4604 extern tree build_offset_ref_call_from_tree (tree, VEC(tree,gc) **);
4605 extern void check_default_args (tree);
4606 extern void mark_used (tree);
4607 extern void finish_static_data_member_decl (tree, tree, bool, tree, int);
4608 extern tree cp_build_parm_decl (tree, tree);
4609 extern tree get_guard (tree);
4610 extern tree get_guard_cond (tree);
4611 extern tree set_guard (tree);
4612 extern tree cxx_callgraph_analyze_expr (tree *, int *);
4613 extern void mark_needed (tree);
4614 extern bool decl_needed_p (tree);
4615 extern void note_vague_linkage_fn (tree);
4616 extern tree build_artificial_parm (tree, tree);
4617 extern bool possibly_inlined_p (tree);
4618 extern int parm_index (tree);
4621 extern void init_error (void);
4622 extern const char *type_as_string (tree, int);
4623 extern const char *type_as_string_translate (tree, int);
4624 extern const char *decl_as_string (tree, int);
4625 extern const char *decl_as_string_translate (tree, int);
4626 extern const char *expr_as_string (tree, int);
4627 extern const char *lang_decl_name (tree, int, bool);
4628 extern const char *language_to_string (enum languages);
4629 extern const char *class_key_or_enum_as_string (tree);
4630 extern void print_instantiation_context (void);
4631 extern void maybe_warn_variadic_templates (void);
4632 extern void maybe_warn_cpp0x (const char *);
4633 extern bool pedwarn_cxx98 (location_t, int, const char *, ...) ATTRIBUTE_GCC_CXXDIAG(3,4);
4636 extern void init_exception_processing (void);
4637 extern tree expand_start_catch_block (tree);
4638 extern void expand_end_catch_block (void);
4639 extern tree build_exc_ptr (void);
4640 extern tree build_throw (tree);
4641 extern int nothrow_libfn_p (const_tree);
4642 extern void check_handlers (tree);
4643 extern void choose_personality_routine (enum languages);
4644 extern tree eh_type_info (tree);
4645 extern tree begin_eh_spec_block (void);
4646 extern void finish_eh_spec_block (tree, tree);
4647 extern tree build_eh_type_type (tree);
4650 extern tree cplus_expand_constant (tree);
4653 extern int is_friend (tree, tree);
4654 extern void make_friend_class (tree, tree, bool);
4655 extern void add_friend (tree, tree, bool);
4656 extern tree do_friend (tree, tree, tree, tree, enum overload_flags, bool);
4659 extern tree expand_member_init (tree);
4660 extern void emit_mem_initializers (tree);
4661 extern tree build_aggr_init (tree, tree, int,
4663 extern int is_class_type (tree, int);
4664 extern tree get_type_value (tree);
4665 extern tree build_zero_init (tree, tree, bool);
4666 extern tree build_value_init (tree);
4667 extern tree build_value_init_noctor (tree);
4668 extern tree build_offset_ref (tree, tree, bool);
4669 extern tree build_new (VEC(tree,gc) **, tree, tree,
4670 VEC(tree,gc) **, int,
4672 extern tree build_vec_init (tree, tree, tree, bool, int,
4674 extern tree build_delete (tree, tree,
4675 special_function_kind,
4677 extern void push_base_cleanups (void);
4678 extern tree build_vec_delete (tree, tree,
4679 special_function_kind, int);
4680 extern tree create_temporary_var (tree);
4681 extern void initialize_vtbl_ptrs (tree);
4682 extern tree build_java_class_ref (tree);
4683 extern tree integral_constant_value (tree);
4686 extern void cxx_dup_lang_specific_decl (tree);
4687 extern void yyungetc (int, int);
4689 extern tree unqualified_name_lookup_error (tree);
4690 extern tree unqualified_fn_lookup_error (tree);
4691 extern tree build_lang_decl (enum tree_code, tree, tree);
4692 extern void retrofit_lang_decl (tree);
4693 extern tree copy_decl (tree);
4694 extern tree copy_type (tree);
4695 extern tree cxx_make_type (enum tree_code);
4696 extern tree make_class_type (enum tree_code);
4697 extern bool cxx_init (void);
4698 extern void cxx_finish (void);
4699 extern bool in_main_input_context (void);
4702 extern void init_method (void);
4703 extern tree make_thunk (tree, bool, tree, tree);
4704 extern void finish_thunk (tree);
4705 extern void use_thunk (tree, bool);
4706 extern void synthesize_method (tree);
4707 extern tree lazily_declare_fn (special_function_kind,
4709 extern tree skip_artificial_parms_for (const_tree, tree);
4710 extern int num_artificial_parms_for (const_tree);
4711 extern tree make_alias_for (tree, tree);
4712 extern tree locate_copy (tree, void *);
4713 extern tree locate_ctor (tree, void *);
4714 extern tree locate_dtor (tree, void *);
4717 extern bool maybe_clone_body (tree);
4720 extern bool check_template_shadow (tree);
4721 extern tree get_innermost_template_args (tree, int);
4722 extern void maybe_begin_member_template_processing (tree);
4723 extern void maybe_end_member_template_processing (void);
4724 extern tree finish_member_template_decl (tree);
4725 extern void begin_template_parm_list (void);
4726 extern bool begin_specialization (void);
4727 extern void reset_specialization (void);
4728 extern void end_specialization (void);
4729 extern void begin_explicit_instantiation (void);
4730 extern void end_explicit_instantiation (void);
4731 extern tree check_explicit_specialization (tree, tree, int, int);
4732 extern tree make_auto (void);
4733 extern tree do_auto_deduction (tree, tree, tree);
4734 extern tree type_uses_auto (tree);
4735 extern void append_type_to_template_for_access_check (tree, tree, tree);
4736 extern tree splice_late_return_type (tree, tree);
4737 extern bool is_auto (const_tree);
4738 extern tree process_template_parm (tree, location_t, tree,
4740 extern tree end_template_parm_list (tree);
4741 extern void end_template_decl (void);
4742 extern bool check_default_tmpl_args (tree, tree, int, int, int);
4743 extern tree push_template_decl (tree);
4744 extern tree push_template_decl_real (tree, bool);
4745 extern bool redeclare_class_template (tree, tree);
4746 extern tree lookup_template_class (tree, tree, tree, tree,
4747 int, tsubst_flags_t);
4748 extern tree lookup_template_function (tree, tree);
4749 extern int uses_template_parms (tree);
4750 extern int uses_template_parms_level (tree, int);
4751 extern tree instantiate_class_template (tree);
4752 extern tree instantiate_template (tree, tree, tsubst_flags_t);
4753 extern int fn_type_unification (tree, tree, tree,
4754 const tree *, unsigned int,
4755 tree, unification_kind_t, int);
4756 extern void mark_decl_instantiated (tree, int);
4757 extern int more_specialized_fn (tree, tree, int);
4758 extern void do_decl_instantiation (tree, tree);
4759 extern void do_type_instantiation (tree, tree, tsubst_flags_t);
4760 extern bool always_instantiate_p (tree);
4761 extern tree instantiate_decl (tree, int, bool);
4762 extern int comp_template_parms (const_tree, const_tree);
4763 extern bool uses_parameter_packs (tree);
4764 extern bool template_parameter_pack_p (const_tree);
4765 extern bool function_parameter_pack_p (const_tree);
4766 extern bool function_parameter_expanded_from_pack_p (tree, tree);
4767 extern tree make_pack_expansion (tree);
4768 extern bool check_for_bare_parameter_packs (tree);
4769 extern tree get_template_info (const_tree);
4770 extern tree get_types_needing_access_check (tree);
4771 extern int template_class_depth (tree);
4772 extern int is_specialization_of (tree, tree);
4773 extern bool is_specialization_of_friend (tree, tree);
4774 extern tree get_pattern_parm (tree, tree);
4775 extern int comp_template_args (tree, tree);
4776 extern tree maybe_process_partial_specialization (tree);
4777 extern tree most_specialized_instantiation (tree);
4778 extern void print_candidates (tree);
4779 extern void instantiate_pending_templates (int);
4780 extern tree tsubst_default_argument (tree, tree, tree);
4781 extern tree tsubst (tree, tree, tsubst_flags_t, tree);
4782 extern tree tsubst_copy_and_build (tree, tree, tsubst_flags_t,
4784 extern tree most_general_template (tree);
4785 extern tree get_mostly_instantiated_function_type (tree);
4786 extern int problematic_instantiation_changed (void);
4787 extern void record_last_problematic_instantiation (void);
4788 extern struct tinst_level *current_instantiation(void);
4789 extern tree maybe_get_template_decl_from_type_decl (tree);
4790 extern int processing_template_parmlist;
4791 extern bool dependent_type_p (tree);
4792 extern bool dependent_scope_p (tree);
4793 extern bool any_dependent_template_arguments_p (const_tree);
4794 extern bool dependent_template_p (tree);
4795 extern bool dependent_template_id_p (tree, tree);
4796 extern bool type_dependent_expression_p (tree);
4797 extern bool any_type_dependent_arguments_p (const VEC(tree,gc) *);
4798 extern bool type_dependent_expression_p_push (tree);
4799 extern bool value_dependent_expression_p (tree);
4800 extern bool any_value_dependent_elements_p (const_tree);
4801 extern bool dependent_omp_for_p (tree, tree, tree, tree);
4802 extern tree resolve_typename_type (tree, bool);
4803 extern tree template_for_substitution (tree);
4804 extern tree build_non_dependent_expr (tree);
4805 extern void make_args_non_dependent (VEC(tree,gc) *);
4806 extern bool reregister_specialization (tree, tree, tree);
4807 extern tree fold_non_dependent_expr (tree);
4808 extern bool explicit_class_specialization_p (tree);
4809 extern struct tinst_level *outermost_tinst_level(void);
4810 extern bool parameter_of_template_p (tree, tree);
4811 extern void init_template_processing (void);
4812 bool template_template_parameter_p (const_tree);
4813 extern tree get_primary_template_innermost_parameters (const_tree);
4814 extern tree get_template_innermost_arguments (const_tree);
4815 extern tree get_template_argument_pack_elems (const_tree);
4816 extern tree get_function_template_decl (const_tree);
4818 extern void init_repo (void);
4819 extern int repo_emit_p (tree);
4820 extern bool repo_export_class_p (const_tree);
4821 extern void finish_repo (void);
4824 /* A vector of all tinfo decls that haven't been emitted yet. */
4825 extern GTY(()) VEC(tree,gc) *unemitted_tinfo_decls;
4827 extern void init_rtti_processing (void);
4828 extern tree build_typeid (tree);
4829 extern tree get_tinfo_decl (tree);
4830 extern tree get_typeid (tree);
4831 extern tree build_headof (tree);
4832 extern tree build_dynamic_cast (tree, tree, tsubst_flags_t);
4833 extern void emit_support_tinfos (void);
4834 extern bool emit_tinfo_decl (tree);
4837 extern bool accessible_base_p (tree, tree, bool);
4838 extern tree lookup_base (tree, tree, base_access,
4840 extern tree dcast_base_hint (tree, tree);
4841 extern int accessible_p (tree, tree, bool);
4842 extern tree lookup_field_1 (tree, tree, bool);
4843 extern tree lookup_field (tree, tree, int, bool);
4844 extern int lookup_fnfields_1 (tree, tree);
4845 extern int class_method_index_for_fn (tree, tree);
4846 extern tree lookup_fnfields (tree, tree, int);
4847 extern tree lookup_member (tree, tree, int, bool);
4848 extern int look_for_overrides (tree, tree);
4849 extern void get_pure_virtuals (tree);
4850 extern void maybe_suppress_debug_info (tree);
4851 extern void note_debug_info_needed (tree);
4852 extern void print_search_statistics (void);
4853 extern void reinit_search_statistics (void);
4854 extern tree current_scope (void);
4855 extern int at_function_scope_p (void);
4856 extern bool at_class_scope_p (void);
4857 extern bool at_namespace_scope_p (void);
4858 extern tree context_for_name_lookup (tree);
4859 extern tree lookup_conversions (tree);
4860 extern tree binfo_from_vbase (tree);
4861 extern tree binfo_for_vbase (tree, tree);
4862 extern tree look_for_overrides_here (tree, tree);
4863 #define dfs_skip_bases ((tree)1)
4864 extern tree dfs_walk_all (tree, tree (*) (tree, void *),
4865 tree (*) (tree, void *), void *);
4866 extern tree dfs_walk_once (tree, tree (*) (tree, void *),
4867 tree (*) (tree, void *), void *);
4868 extern tree binfo_via_virtual (tree, tree);
4869 extern tree build_baselink (tree, tree, tree, tree);
4870 extern tree adjust_result_of_qualified_name_lookup
4872 extern tree copied_binfo (tree, tree);
4873 extern tree original_binfo (tree, tree);
4874 extern int shared_member_p (tree);
4877 /* The representation of a deferred access check. */
4879 typedef struct GTY(()) deferred_access_check {
4880 /* The base class in which the declaration is referenced. */
4882 /* The declaration whose access must be checked. */
4884 /* The declaration that should be used in the error message. */
4886 } deferred_access_check;
4887 DEF_VEC_O(deferred_access_check);
4888 DEF_VEC_ALLOC_O(deferred_access_check,gc);
4890 /* in semantics.c */
4891 extern void push_deferring_access_checks (deferring_kind);
4892 extern void resume_deferring_access_checks (void);
4893 extern void stop_deferring_access_checks (void);
4894 extern void pop_deferring_access_checks (void);
4895 extern VEC (deferred_access_check,gc)* get_deferred_access_checks (void);
4896 extern void pop_to_parent_deferring_access_checks (void);
4897 extern void perform_access_checks (VEC (deferred_access_check,gc)*);
4898 extern void perform_deferred_access_checks (void);
4899 extern void perform_or_defer_access_check (tree, tree, tree);
4900 extern int stmts_are_full_exprs_p (void);
4901 extern void init_cp_semantics (void);
4902 extern tree do_poplevel (tree);
4903 extern void add_decl_expr (tree);
4904 extern tree finish_expr_stmt (tree);
4905 extern tree begin_if_stmt (void);
4906 extern void finish_if_stmt_cond (tree, tree);
4907 extern tree finish_then_clause (tree);
4908 extern void begin_else_clause (tree);
4909 extern void finish_else_clause (tree);
4910 extern void finish_if_stmt (tree);
4911 extern tree begin_while_stmt (void);
4912 extern void finish_while_stmt_cond (tree, tree);
4913 extern void finish_while_stmt (tree);
4914 extern tree begin_do_stmt (void);
4915 extern void finish_do_body (tree);
4916 extern void finish_do_stmt (tree, tree);
4917 extern tree finish_return_stmt (tree);
4918 extern tree begin_for_stmt (void);
4919 extern void finish_for_init_stmt (tree);
4920 extern void finish_for_cond (tree, tree);
4921 extern void finish_for_expr (tree, tree);
4922 extern void finish_for_stmt (tree);
4923 extern tree finish_break_stmt (void);
4924 extern tree finish_continue_stmt (void);
4925 extern tree begin_switch_stmt (void);
4926 extern void finish_switch_cond (tree, tree);
4927 extern void finish_switch_stmt (tree);
4928 extern tree finish_goto_stmt (tree);
4929 extern tree begin_try_block (void);
4930 extern void finish_try_block (tree);
4931 extern void finish_handler_sequence (tree);
4932 extern tree begin_function_try_block (tree *);
4933 extern void finish_function_try_block (tree);
4934 extern void finish_function_handler_sequence (tree, tree);
4935 extern void finish_cleanup_try_block (tree);
4936 extern tree begin_handler (void);
4937 extern void finish_handler_parms (tree, tree);
4938 extern void finish_handler (tree);
4939 extern void finish_cleanup (tree, tree);
4946 extern tree begin_compound_stmt (unsigned int);
4948 extern void finish_compound_stmt (tree);
4949 extern tree finish_asm_stmt (int, tree, tree, tree, tree,
4951 extern tree finish_label_stmt (tree);
4952 extern void finish_label_decl (tree);
4953 extern tree finish_parenthesized_expr (tree);
4954 extern tree finish_non_static_data_member (tree, tree, tree);
4955 extern tree begin_stmt_expr (void);
4956 extern tree finish_stmt_expr_expr (tree, tree);
4957 extern tree finish_stmt_expr (tree, bool);
4958 extern tree stmt_expr_value_expr (tree);
4959 extern tree perform_koenig_lookup (tree, VEC(tree,gc) *);
4960 extern tree finish_call_expr (tree, VEC(tree,gc) **, bool,
4961 bool, tsubst_flags_t);
4962 extern tree finish_increment_expr (tree, enum tree_code);
4963 extern tree finish_this_expr (void);
4964 extern tree finish_pseudo_destructor_expr (tree, tree, tree);
4965 extern tree finish_unary_op_expr (enum tree_code, tree);
4966 extern tree finish_compound_literal (tree, tree);
4967 extern tree finish_fname (tree);
4968 extern void finish_translation_unit (void);
4969 extern tree finish_template_type_parm (tree, tree);
4970 extern tree finish_template_template_parm (tree, tree);
4971 extern tree begin_class_definition (tree, tree);
4972 extern void finish_template_decl (tree);
4973 extern tree finish_template_type (tree, tree, int);
4974 extern tree finish_base_specifier (tree, tree, bool);
4975 extern void finish_member_declaration (tree);
4976 extern void qualified_name_lookup_error (tree, tree, tree,
4978 extern tree finish_id_expression (tree, tree, tree,
4981 bool, bool, bool, bool,
4984 extern tree finish_typeof (tree);
4985 extern tree finish_offsetof (tree);
4986 extern void finish_decl_cleanup (tree, tree);
4987 extern void finish_eh_cleanup (tree);
4988 extern void emit_associated_thunks (tree);
4989 extern void finish_mem_initializers (tree);
4990 extern tree check_template_template_default_arg (tree);
4991 extern void expand_or_defer_fn (tree);
4992 extern void check_accessibility_of_qualified_id (tree, tree, tree);
4993 extern tree finish_qualified_id_expr (tree, tree, bool, bool,
4995 extern void simplify_aggr_init_expr (tree *);
4996 extern void finalize_nrv (tree *, tree, tree);
4997 extern void note_decl_for_pch (tree);
4998 extern tree finish_omp_clauses (tree);
4999 extern void finish_omp_threadprivate (tree);
5000 extern tree begin_omp_structured_block (void);
5001 extern tree finish_omp_structured_block (tree);
5002 extern tree begin_omp_parallel (void);
5003 extern tree finish_omp_parallel (tree, tree);
5004 extern tree begin_omp_task (void);
5005 extern tree finish_omp_task (tree, tree);
5006 extern tree finish_omp_for (location_t, tree, tree,
5007 tree, tree, tree, tree, tree);
5008 extern void finish_omp_atomic (enum tree_code, tree, tree);
5009 extern void finish_omp_barrier (void);
5010 extern void finish_omp_flush (void);
5011 extern void finish_omp_taskwait (void);
5012 extern bool cxx_omp_create_clause_info (tree, tree, bool, bool, bool);
5013 extern tree baselink_for_fns (tree);
5014 extern void finish_static_assert (tree, tree, location_t,
5016 extern tree describable_type (tree);
5017 extern tree finish_decltype_type (tree, bool);
5018 extern tree finish_trait_expr (enum cp_trait_kind, tree, tree);
5019 extern tree build_lambda_expr (void);
5020 extern tree build_lambda_object (tree);
5021 extern tree begin_lambda_type (tree);
5022 extern tree lambda_capture_field_type (tree);
5023 extern tree lambda_return_type (tree);
5024 extern tree lambda_function (tree);
5025 extern void apply_lambda_return_type (tree, tree);
5026 extern tree add_capture (tree, tree, tree, bool);
5027 extern tree add_default_capture (tree, tree, tree);
5028 extern tree lambda_expr_this_capture (tree);
5031 void cp_free_lang_data (tree t);
5032 extern tree force_target_expr (tree, tree);
5033 extern tree build_target_expr_with_type (tree, tree);
5034 extern void lang_check_failed (const char *, int,
5035 const char *) ATTRIBUTE_NORETURN;
5036 extern tree stabilize_expr (tree, tree *);
5037 extern void stabilize_call (tree, tree *);
5038 extern void stabilize_aggr_init (tree, tree *);
5039 extern bool stabilize_init (tree, tree *);
5040 extern tree add_stmt_to_compound (tree, tree);
5041 extern void init_tree (void);
5042 extern bool pod_type_p (const_tree);
5043 extern bool layout_pod_type_p (const_tree);
5044 extern bool std_layout_type_p (const_tree);
5045 extern bool trivial_type_p (const_tree);
5046 extern bool type_has_nontrivial_default_init (const_tree);
5047 extern bool type_has_nontrivial_copy_init (const_tree);
5048 extern bool class_tmpl_impl_spec_p (const_tree);
5049 extern int zero_init_p (const_tree);
5050 extern tree strip_typedefs (tree);
5051 extern tree copy_binfo (tree, tree, tree,
5053 extern int member_p (const_tree);
5054 extern cp_lvalue_kind real_lvalue_p (tree);
5055 extern bool lvalue_or_rvalue_with_address_p (const_tree);
5056 extern bool builtin_valid_in_constant_expr_p (const_tree);
5057 extern tree build_min (enum tree_code, tree, ...);
5058 extern tree build_min_nt (enum tree_code, ...);
5059 extern tree build_min_non_dep (enum tree_code, tree, ...);
5060 extern tree build_min_non_dep_call_vec (tree, tree, VEC(tree,gc) *);
5061 extern tree build_cplus_new (tree, tree);
5062 extern tree build_aggr_init_expr (tree, tree);
5063 extern tree get_target_expr (tree);
5064 extern tree build_cplus_array_type (tree, tree);
5065 extern tree build_array_of_n_type (tree, int);
5066 extern tree build_array_copy (tree);
5067 extern tree hash_tree_cons (tree, tree, tree);
5068 extern tree hash_tree_chain (tree, tree);
5069 extern tree build_qualified_name (tree, tree, tree, bool);
5070 extern int is_overloaded_fn (tree);
5071 extern tree get_first_fn (tree);
5072 extern tree ovl_cons (tree, tree);
5073 extern tree build_overload (tree, tree);
5074 extern const char *cxx_printable_name (tree, int);
5075 extern const char *cxx_printable_name_translate (tree, int);
5076 extern tree build_exception_variant (tree, tree);
5077 extern tree bind_template_template_parm (tree, tree);
5078 extern tree array_type_nelts_total (tree);
5079 extern tree array_type_nelts_top (tree);
5080 extern tree break_out_target_exprs (tree);
5081 extern tree get_type_decl (tree);
5082 extern tree decl_namespace_context (tree);
5083 extern bool decl_anon_ns_mem_p (const_tree);
5084 extern tree lvalue_type (tree);
5085 extern tree error_type (tree);
5086 extern int varargs_function_p (const_tree);
5087 extern bool really_overloaded_fn (tree);
5088 extern bool cp_tree_equal (tree, tree);
5089 extern tree no_linkage_check (tree, bool);
5090 extern void debug_binfo (tree);
5091 extern tree build_dummy_object (tree);
5092 extern tree maybe_dummy_object (tree, tree *);
5093 extern int is_dummy_object (const_tree);
5094 extern const struct attribute_spec cxx_attribute_table[];
5095 extern tree make_ptrmem_cst (tree, tree);
5096 extern tree cp_build_type_attribute_variant (tree, tree);
5097 extern tree cp_build_reference_type (tree, bool);
5098 extern tree move (tree);
5099 extern tree cp_build_qualified_type_real (tree, int, tsubst_flags_t);
5100 #define cp_build_qualified_type(TYPE, QUALS) \
5101 cp_build_qualified_type_real ((TYPE), (QUALS), tf_warning_or_error)
5102 extern special_function_kind special_function_p (const_tree);
5103 extern int count_trees (tree);
5104 extern int char_type_p (tree);
5105 extern void verify_stmt_tree (tree);
5106 extern linkage_kind decl_linkage (tree);
5107 extern tree cp_walk_subtrees (tree*, int*, walk_tree_fn,
5108 void*, struct pointer_set_t*);
5109 #define cp_walk_tree(a,b,c,d) \
5110 walk_tree_1 (a, b, c, d, cp_walk_subtrees)
5111 #define cp_walk_tree_without_duplicates(a,b,c) \
5112 walk_tree_without_duplicates_1 (a, b, c, cp_walk_subtrees)
5113 extern tree fold_if_not_in_template (tree);
5114 extern tree rvalue (tree);
5115 extern tree convert_bitfield_to_declared_type (tree);
5116 extern tree cp_save_expr (tree);
5117 extern bool cast_valid_in_integral_constant_expression_p (tree);
5118 extern bool cxx_type_hash_eq (const_tree, const_tree);
5120 extern void cxx_print_statistics (void);
5123 extern void cxx_print_xnode (FILE *, tree, int);
5124 extern void cxx_print_decl (FILE *, tree, int);
5125 extern void cxx_print_type (FILE *, tree, int);
5126 extern void cxx_print_identifier (FILE *, tree, int);
5127 extern void cxx_print_error_function (struct diagnostic_context *,
5129 struct diagnostic_info *);
5132 extern bool cxx_mark_addressable (tree);
5133 extern int string_conv_p (const_tree, const_tree, int);
5134 extern tree cp_truthvalue_conversion (tree);
5135 extern tree condition_conversion (tree);
5136 extern tree require_complete_type (tree);
5137 extern tree complete_type (tree);
5138 extern tree complete_type_or_else (tree, tree);
5139 extern int type_unknown_p (const_tree);
5140 extern bool comp_except_specs (const_tree, const_tree, bool);
5141 extern bool comptypes (tree, tree, int);
5142 extern bool compparms (const_tree, const_tree);
5143 extern int comp_cv_qualification (const_tree, const_tree);
5144 extern int comp_cv_qual_signature (tree, tree);
5145 extern tree cxx_sizeof_or_alignof_expr (tree, enum tree_code, bool);
5146 extern tree cxx_sizeof_or_alignof_type (tree, enum tree_code, bool);
5147 extern tree cxx_sizeof_nowarn (tree);
5148 extern tree is_bitfield_expr_with_lowered_type (const_tree);
5149 extern tree unlowered_expr_type (const_tree);
5150 extern tree decay_conversion (tree);
5151 extern tree build_class_member_access_expr (tree, tree, tree, bool,
5153 extern tree finish_class_member_access_expr (tree, tree, bool,
5155 extern tree build_x_indirect_ref (tree, const char *,
5157 extern tree cp_build_indirect_ref (tree, const char *,
5159 extern tree build_array_ref (location_t, tree, tree);
5160 extern tree get_member_function_from_ptrfunc (tree *, tree);
5161 extern tree cp_build_function_call (tree, tree, tsubst_flags_t);
5162 extern tree cp_build_function_call_vec (tree, VEC(tree,gc) **,
5164 extern tree build_x_binary_op (enum tree_code, tree,
5165 enum tree_code, tree,
5166 enum tree_code, bool *,
5168 extern tree build_x_array_ref (tree, tree, tsubst_flags_t);
5169 extern tree build_x_unary_op (enum tree_code, tree,
5171 extern tree cp_build_unary_op (enum tree_code, tree, int,
5173 extern tree unary_complex_lvalue (enum tree_code, tree);
5174 extern tree build_x_conditional_expr (tree, tree, tree,
5176 extern tree build_x_compound_expr_from_list (tree, const char *);
5177 extern tree build_x_compound_expr_from_vec (VEC(tree,gc) *, const char *);
5178 extern tree build_x_compound_expr (tree, tree, tsubst_flags_t);
5179 extern tree build_compound_expr (location_t, tree, tree);
5180 extern tree cp_build_compound_expr (tree, tree, tsubst_flags_t);
5181 extern tree build_static_cast (tree, tree, tsubst_flags_t);
5182 extern tree build_reinterpret_cast (tree, tree, tsubst_flags_t);
5183 extern tree build_const_cast (tree, tree, tsubst_flags_t);
5184 extern tree build_c_cast (location_t, tree, tree);
5185 extern tree cp_build_c_cast (tree, tree, tsubst_flags_t);
5186 extern tree build_x_modify_expr (tree, enum tree_code, tree,
5188 extern tree cp_build_modify_expr (tree, enum tree_code, tree,
5190 extern tree convert_for_initialization (tree, tree, tree, int,
5191 const char *, tree, int,
5193 extern int comp_ptr_ttypes (tree, tree);
5194 extern bool comp_ptr_ttypes_const (tree, tree);
5195 extern int ptr_reasonably_similar (const_tree, const_tree);
5196 extern tree build_ptrmemfunc (tree, tree, int, bool);
5197 extern int cp_type_quals (const_tree);
5198 extern bool cp_type_readonly (const_tree);
5199 extern bool cp_has_mutable_p (const_tree);
5200 extern bool at_least_as_qualified_p (const_tree, const_tree);
5201 extern void cp_apply_type_quals_to_decl (int, tree);
5202 extern tree build_ptrmemfunc1 (tree, tree, tree);
5203 extern void expand_ptrmemfunc_cst (tree, tree *, tree *);
5204 extern tree type_after_usual_arithmetic_conversions (tree, tree);
5205 extern tree common_pointer_type (tree, tree);
5206 extern tree composite_pointer_type (tree, tree, tree, tree,
5207 const char*, tsubst_flags_t);
5208 extern tree merge_types (tree, tree);
5209 extern tree check_return_expr (tree, bool *);
5210 extern tree cp_build_binary_op (location_t,
5211 enum tree_code, tree, tree,
5213 #define cxx_sizeof(T) cxx_sizeof_or_alignof_type (T, SIZEOF_EXPR, true)
5214 extern tree build_ptrmemfunc_access_expr (tree, tree);
5215 extern tree build_address (tree);
5216 extern tree build_typed_address (tree, tree);
5217 extern tree build_nop (tree, tree);
5218 extern tree non_reference (tree);
5219 extern tree lookup_anon_field (tree, tree);
5220 extern bool invalid_nonstatic_memfn_p (const_tree, tsubst_flags_t);
5221 extern tree convert_member_func_to_ptr (tree, tree);
5222 extern tree convert_ptrmem (tree, tree, bool, bool);
5223 extern int lvalue_or_else (tree, enum lvalue_use,
5225 extern void check_template_keyword (tree);
5228 extern void require_complete_eh_spec_types (tree, tree);
5229 extern void cxx_incomplete_type_diagnostic (const_tree, const_tree, diagnostic_t);
5230 #undef cxx_incomplete_type_error
5231 extern void cxx_incomplete_type_error (const_tree, const_tree);
5232 #define cxx_incomplete_type_error(V,T) \
5233 (cxx_incomplete_type_diagnostic ((V), (T), DK_ERROR))
5234 extern tree error_not_base_type (tree, tree);
5235 extern tree binfo_or_else (tree, tree);
5236 extern void readonly_error (tree, const char *);
5237 extern void complete_type_check_abstract (tree);
5238 extern int abstract_virtuals_error (tree, tree);
5240 extern tree store_init_value (tree, tree, int);
5241 extern void check_narrowing (tree, tree);
5242 extern tree digest_init (tree, tree);
5243 extern tree digest_init_flags (tree, tree, int);
5244 extern tree build_scoped_ref (tree, tree, tree *);
5245 extern tree build_x_arrow (tree);
5246 extern tree build_m_component_ref (tree, tree);
5247 extern tree build_functional_cast (tree, tree, tsubst_flags_t);
5248 extern tree add_exception_specifier (tree, tree, int);
5249 extern tree merge_exception_specifiers (tree, tree);
5252 extern void init_mangle (void);
5253 extern void mangle_decl (tree);
5254 extern const char *mangle_type_string_for_rtti (tree);
5255 extern tree mangle_typeinfo_for_type (tree);
5256 extern tree mangle_typeinfo_string_for_type (tree);
5257 extern tree mangle_vtbl_for_type (tree);
5258 extern tree mangle_vtt_for_type (tree);
5259 extern tree mangle_ctor_vtbl_for_type (tree, tree);
5260 extern tree mangle_thunk (tree, int, tree, tree);
5261 extern tree mangle_conv_op_name_for_type (tree);
5262 extern tree mangle_guard_variable (tree);
5263 extern tree mangle_ref_init_variable (tree);
5266 extern bool cp_dump_tree (void *, tree);
5268 /* In cp/cp-objcp-common.c. */
5270 extern alias_set_type cxx_get_alias_set (tree);
5271 extern bool cxx_warn_unused_global_decl (const_tree);
5272 extern tree cp_expr_size (const_tree);
5273 extern size_t cp_tree_size (enum tree_code);
5274 extern bool cp_var_mod_type_p (tree, tree);
5275 extern void cxx_initialize_diagnostics (struct diagnostic_context *);
5276 extern int cxx_types_compatible_p (tree, tree);
5277 extern void init_shadowed_var_for_decl (void);
5279 /* in cp-gimplify.c */
5280 extern int cp_gimplify_expr (tree *, gimple_seq *,
5282 extern void cp_genericize (tree);
5283 extern enum omp_clause_default_kind cxx_omp_predetermined_sharing (tree);
5284 extern tree cxx_omp_clause_default_ctor (tree, tree, tree);
5285 extern tree cxx_omp_clause_copy_ctor (tree, tree, tree);
5286 extern tree cxx_omp_clause_assign_op (tree, tree, tree);
5287 extern tree cxx_omp_clause_dtor (tree, tree);
5288 extern void cxx_omp_finish_clause (tree);
5289 extern bool cxx_omp_privatize_by_reference (const_tree);
5292 extern bool no_linkage_lambda_type_p (tree);
5296 #endif /* ! GCC_CP_TREE_H */