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 1: IDENTIFIER_VIRTUAL_P (in IDENTIFIER_NODE)
81 TI_PENDING_TEMPLATE_FLAG.
82 TEMPLATE_PARMS_FOR_INLINE.
83 DELETE_EXPR_USE_VEC (in DELETE_EXPR).
84 (TREE_CALLS_NEW) (in _EXPR or _REF) (commented-out).
85 ICS_ELLIPSIS_FLAG (in _CONV)
86 DECL_INITIALIZED_P (in VAR_DECL)
87 TYPENAME_IS_CLASS_P (in TYPENAME_TYPE)
88 STMT_IS_FULL_EXPR_P (in _STMT)
89 TARGET_EXPR_LIST_INIT_P (in TARGET_EXPR)
90 2: IDENTIFIER_OPNAME_P (in IDENTIFIER_NODE)
91 ICS_THIS_FLAG (in _CONV)
92 DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (in VAR_DECL)
93 STATEMENT_LIST_TRY_BLOCK (in STATEMENT_LIST)
94 TYPENAME_IS_RESOLVING_P (in TYPE_NAME_TYPE)
95 3: (TREE_REFERENCE_EXPR) (in NON_LVALUE_EXPR) (commented-out).
96 ICS_BAD_FLAG (in _CONV)
97 FN_TRY_BLOCK_P (in TRY_BLOCK)
98 IDENTIFIER_CTOR_OR_DTOR_P (in IDENTIFIER_NODE)
99 BIND_EXPR_BODY_BLOCK (in BIND_EXPR)
100 DECL_NON_TRIVIALLY_INITIALIZED_P (in VAR_DECL)
101 4: TREE_HAS_CONSTRUCTOR (in INDIRECT_REF, SAVE_EXPR, CONSTRUCTOR,
103 IDENTIFIER_TYPENAME_P (in IDENTIFIER_NODE)
104 DECL_TINFO_P (in VAR_DECL)
105 5: C_IS_RESERVED_WORD (in IDENTIFIER_NODE)
106 DECL_VTABLE_OR_VTT_P (in VAR_DECL)
107 6: IDENTIFIER_REPO_CHOSEN (in IDENTIFIER_NODE)
108 DECL_CONSTRUCTION_VTABLE_P (in VAR_DECL)
109 TYPE_MARKED_P (in _TYPE)
111 Usage of TYPE_LANG_FLAG_?:
113 1: TYPE_HAS_USER_CONSTRUCTOR.
116 4: TYPE_HAS_NONTRIVIAL_DESTRUCTOR
117 5: CLASS_TYPE_P (in RECORD_TYPE and UNION_TYPE)
118 SCOPED_ENUM_P (in ENUMERAL_TYPE)
119 6: TYPE_DEPENDENT_P_VALID
121 Usage of DECL_LANG_FLAG_?:
122 0: DECL_ERROR_REPORTED (in VAR_DECL).
123 DECL_TEMPLATE_PARM_P (in PARM_DECL, CONST_DECL, TYPE_DECL, or TEMPLATE_DECL)
124 DECL_LOCAL_FUNCTION_P (in FUNCTION_DECL)
125 DECL_MUTABLE_P (in FIELD_DECL)
126 DECL_DEPENDENT_P (in USING_DECL)
127 1: C_TYPEDEF_EXPLICITLY_SIGNED (in TYPE_DECL).
128 DECL_TEMPLATE_INSTANTIATED (in a VAR_DECL or a FUNCTION_DECL)
129 DECL_MEMBER_TEMPLATE_P (in TEMPLATE_DECL)
130 FUNCTION_PARAMETER_PACK_P (in PARM_DECL)
131 2: DECL_THIS_EXTERN (in VAR_DECL or FUNCTION_DECL).
132 DECL_IMPLICIT_TYPEDEF_P (in a TYPE_DECL)
134 4: DECL_C_BIT_FIELD (in a FIELD_DECL)
135 DECL_ANON_UNION_VAR_P (in a VAR_DECL)
136 DECL_SELF_REFERENCE_P (in a TYPE_DECL)
137 DECL_INVALID_OVERRIDER_P (in a FUNCTION_DECL)
138 5: DECL_INTERFACE_KNOWN.
139 6: DECL_THIS_STATIC (in VAR_DECL or FUNCTION_DECL).
140 DECL_FIELD_IS_BASE (in FIELD_DECL)
141 7: DECL_DEAD_FOR_LOCAL (in VAR_DECL).
142 DECL_THUNK_P (in a member FUNCTION_DECL)
144 Usage of language-independent fields in a language-dependent manner:
147 This field is used by TYPENAME_TYPEs, TEMPLATE_TYPE_PARMs, and so
148 forth as a substitute for the mark bits provided in `lang_type'.
149 At present, only the six low-order bits are used.
152 For an ENUMERAL_TYPE, this is ENUM_TEMPLATE_INFO.
153 For a FUNCTION_TYPE or METHOD_TYPE, this is TYPE_RAISES_EXCEPTIONS
156 For a binfo, this is a TREE_LIST. There is an entry for each
157 virtual function declared either in BINFO or its direct and
158 indirect primary bases.
160 The BV_DELTA of each node gives the amount by which to adjust the
161 `this' pointer when calling the function. If the method is an
162 overridden version of a base class method, then it is assumed
163 that, prior to adjustment, the this pointer points to an object
166 The BV_VCALL_INDEX of each node, if non-NULL, gives the vtable
167 index of the vcall offset for this entry.
169 The BV_FN is the declaration for the virtual function itself.
172 This is an expression with POINTER_TYPE that gives the value
173 to which the vptr should be initialized. Use get_vtbl_decl_for_binfo
174 to extract the VAR_DECL for the complete vtable.
177 This field is NULL for a non-virtual function. For a virtual
178 function, it is eventually set to an INTEGER_CST indicating the
179 index in the vtable at which this function can be found. When
180 a virtual function is declared, but before it is known what
181 function is overridden, this field is the error_mark_node.
183 Temporarily, it may be set to a TREE_LIST whose TREE_VALUE is
184 the virtual function this one overrides, and whose TREE_CHAIN is
185 the old DECL_VINDEX. */
187 /* Language-specific tree checkers. */
189 #define VAR_OR_FUNCTION_DECL_CHECK(NODE) \
190 TREE_CHECK2(NODE,VAR_DECL,FUNCTION_DECL)
192 #define VAR_FUNCTION_OR_PARM_DECL_CHECK(NODE) \
193 TREE_CHECK3(NODE,VAR_DECL,FUNCTION_DECL,PARM_DECL)
195 #define VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK(NODE) \
196 TREE_CHECK4(NODE,VAR_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL)
198 #define BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK(NODE) \
199 TREE_CHECK(NODE,BOUND_TEMPLATE_TEMPLATE_PARM)
201 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
202 #define THUNK_FUNCTION_CHECK(NODE) __extension__ \
203 ({ __typeof (NODE) const __t = (NODE); \
204 if (TREE_CODE (__t) != FUNCTION_DECL || !__t->decl_common.lang_specific \
205 || !__t->decl_common.lang_specific->u.fn.thunk_p) \
206 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, 0); \
209 #define THUNK_FUNCTION_CHECK(NODE) (NODE)
212 /* Language-dependent contents of an identifier. */
214 struct GTY(()) lang_identifier {
215 struct c_common_identifier c_common;
216 cxx_binding *namespace_bindings;
217 cxx_binding *bindings;
218 tree class_template_info;
222 /* In an IDENTIFIER_NODE, nonzero if this identifier is actually a
223 keyword. C_RID_CODE (node) is then the RID_* value of the keyword,
224 and C_RID_YYCODE is the token number wanted by Yacc. */
226 #define C_IS_RESERVED_WORD(ID) TREE_LANG_FLAG_5 (ID)
228 #define LANG_IDENTIFIER_CAST(NODE) \
229 ((struct lang_identifier*)IDENTIFIER_NODE_CHECK (NODE))
231 struct GTY(()) template_parm_index_s {
232 struct tree_common common;
238 typedef struct template_parm_index_s template_parm_index;
240 struct GTY(()) ptrmem_cst {
241 struct tree_common common;
242 /* This isn't used, but the middle-end expects all constants to have
247 typedef struct ptrmem_cst * ptrmem_cst_t;
249 #define IDENTIFIER_GLOBAL_VALUE(NODE) \
250 namespace_binding ((NODE), global_namespace)
251 #define SET_IDENTIFIER_GLOBAL_VALUE(NODE, VAL) \
252 set_namespace_binding ((NODE), global_namespace, (VAL))
253 #define IDENTIFIER_NAMESPACE_VALUE(NODE) \
254 namespace_binding ((NODE), current_namespace)
255 #define SET_IDENTIFIER_NAMESPACE_VALUE(NODE, VAL) \
256 set_namespace_binding ((NODE), current_namespace, (VAL))
258 #define CLEANUP_P(NODE) TREE_LANG_FLAG_0 (TRY_BLOCK_CHECK (NODE))
260 #define BIND_EXPR_TRY_BLOCK(NODE) \
261 TREE_LANG_FLAG_0 (BIND_EXPR_CHECK (NODE))
263 /* Used to mark the block around the member initializers and cleanups. */
264 #define BIND_EXPR_BODY_BLOCK(NODE) \
265 TREE_LANG_FLAG_3 (BIND_EXPR_CHECK (NODE))
266 #define FUNCTION_NEEDS_BODY_BLOCK(NODE) \
267 (DECL_CONSTRUCTOR_P (NODE) || DECL_DESTRUCTOR_P (NODE))
269 #define STATEMENT_LIST_NO_SCOPE(NODE) \
270 TREE_LANG_FLAG_0 (STATEMENT_LIST_CHECK (NODE))
271 #define STATEMENT_LIST_TRY_BLOCK(NODE) \
272 TREE_LANG_FLAG_2 (STATEMENT_LIST_CHECK (NODE))
274 /* Nonzero if this statement should be considered a full-expression,
275 i.e., if temporaries created during this statement should have
276 their destructors run at the end of this statement. */
277 #define STMT_IS_FULL_EXPR_P(NODE) TREE_LANG_FLAG_1 ((NODE))
279 /* Marks the result of a statement expression. */
280 #define EXPR_STMT_STMT_EXPR_RESULT(NODE) \
281 TREE_LANG_FLAG_0 (EXPR_STMT_CHECK (NODE))
283 /* Nonzero if this statement-expression does not have an associated scope. */
284 #define STMT_EXPR_NO_SCOPE(NODE) \
285 TREE_LANG_FLAG_0 (STMT_EXPR_CHECK (NODE))
287 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, in the usual
289 #define same_type_p(TYPE1, TYPE2) \
290 comptypes ((TYPE1), (TYPE2), COMPARE_STRICT)
292 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, ignoring
293 top-level qualifiers. */
294 #define same_type_ignoring_top_level_qualifiers_p(TYPE1, TYPE2) \
295 same_type_p (TYPE_MAIN_VARIANT (TYPE1), TYPE_MAIN_VARIANT (TYPE2))
297 /* Nonzero if we are presently building a statement tree, rather
298 than expanding each statement as we encounter it. */
299 #define building_stmt_tree() (cur_stmt_list != NULL_TREE)
301 /* Returns nonzero iff NODE is a declaration for the global function
303 #define DECL_MAIN_P(NODE) \
304 (DECL_EXTERN_C_FUNCTION_P (NODE) \
305 && DECL_NAME (NODE) != NULL_TREE \
306 && MAIN_NAME_P (DECL_NAME (NODE)) \
309 /* The overloaded FUNCTION_DECL. */
310 #define OVL_FUNCTION(NODE) \
311 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->function)
312 #define OVL_CHAIN(NODE) TREE_CHAIN (NODE)
313 /* Polymorphic access to FUNCTION and CHAIN. */
314 #define OVL_CURRENT(NODE) \
315 ((TREE_CODE (NODE) == OVERLOAD) ? OVL_FUNCTION (NODE) : (NODE))
316 #define OVL_NEXT(NODE) \
317 ((TREE_CODE (NODE) == OVERLOAD) ? TREE_CHAIN (NODE) : NULL_TREE)
318 /* If set, this was imported in a using declaration.
319 This is not to confuse with being used somewhere, which
320 is not important for this node. */
321 #define OVL_USED(NODE) TREE_USED (NODE)
323 struct GTY(()) tree_overload {
324 struct tree_common common;
328 /* Returns true iff NODE is a BASELINK. */
329 #define BASELINK_P(NODE) \
330 (TREE_CODE (NODE) == BASELINK)
331 /* The BINFO indicating the base from which the BASELINK_FUNCTIONS came. */
332 #define BASELINK_BINFO(NODE) \
333 (((struct tree_baselink*) BASELINK_CHECK (NODE))->binfo)
334 /* The functions referred to by the BASELINK; either a FUNCTION_DECL,
335 a TEMPLATE_DECL, an OVERLOAD, or a TEMPLATE_ID_EXPR. */
336 #define BASELINK_FUNCTIONS(NODE) \
337 (((struct tree_baselink*) BASELINK_CHECK (NODE))->functions)
338 /* The BINFO in which the search for the functions indicated by this baselink
339 began. This base is used to determine the accessibility of functions
340 selected by overload resolution. */
341 #define BASELINK_ACCESS_BINFO(NODE) \
342 (((struct tree_baselink*) BASELINK_CHECK (NODE))->access_binfo)
343 /* For a type-conversion operator, the BASELINK_OPTYPE indicates the type
344 to which the conversion should occur. This value is important if
345 the BASELINK_FUNCTIONS include a template conversion operator --
346 the BASELINK_OPTYPE can be used to determine what type the user
348 #define BASELINK_OPTYPE(NODE) \
349 (TREE_CHAIN (BASELINK_CHECK (NODE)))
350 /* Nonzero if this baselink was from a qualified lookup. */
351 #define BASELINK_QUALIFIED_P(NODE) \
352 TREE_LANG_FLAG_0 (BASELINK_CHECK (NODE))
354 struct GTY(()) tree_baselink {
355 struct tree_common common;
361 /* The different kinds of ids that we encounter. */
363 typedef enum cp_id_kind
365 /* Not an id at all. */
367 /* An unqualified-id that is not a template-id. */
368 CP_ID_KIND_UNQUALIFIED,
369 /* An unqualified-id that is a dependent name. */
370 CP_ID_KIND_UNQUALIFIED_DEPENDENT,
371 /* An unqualified template-id. */
372 CP_ID_KIND_TEMPLATE_ID,
373 /* A qualified-id. */
377 /* Macros for access to language-specific slots in an identifier. */
379 #define IDENTIFIER_NAMESPACE_BINDINGS(NODE) \
380 (LANG_IDENTIFIER_CAST (NODE)->namespace_bindings)
381 #define IDENTIFIER_TEMPLATE(NODE) \
382 (LANG_IDENTIFIER_CAST (NODE)->class_template_info)
384 /* The IDENTIFIER_BINDING is the innermost cxx_binding for the
385 identifier. It's PREVIOUS is the next outermost binding. Each
386 VALUE field is a DECL for the associated declaration. Thus,
387 name lookup consists simply of pulling off the node at the front
388 of the list (modulo oddities for looking up the names of types,
389 and such.) You can use SCOPE field to determine the scope
390 that bound the name. */
391 #define IDENTIFIER_BINDING(NODE) \
392 (LANG_IDENTIFIER_CAST (NODE)->bindings)
394 /* TREE_TYPE only indicates on local and class scope the current
395 type. For namespace scope, the presence of a type in any namespace
396 is indicated with global_type_node, and the real type behind must
397 be found through lookup. */
398 #define IDENTIFIER_TYPE_VALUE(NODE) identifier_type_value (NODE)
399 #define REAL_IDENTIFIER_TYPE_VALUE(NODE) TREE_TYPE (NODE)
400 #define SET_IDENTIFIER_TYPE_VALUE(NODE,TYPE) (TREE_TYPE (NODE) = (TYPE))
401 #define IDENTIFIER_HAS_TYPE_VALUE(NODE) (IDENTIFIER_TYPE_VALUE (NODE) ? 1 : 0)
403 #define IDENTIFIER_LABEL_VALUE(NODE) \
404 (LANG_IDENTIFIER_CAST (NODE)->label_value)
405 #define SET_IDENTIFIER_LABEL_VALUE(NODE, VALUE) \
406 IDENTIFIER_LABEL_VALUE (NODE) = (VALUE)
408 /* Nonzero if this identifier is used as a virtual function name somewhere
409 (optimizes searches). */
410 #define IDENTIFIER_VIRTUAL_P(NODE) TREE_LANG_FLAG_1 (NODE)
412 /* Nonzero if this identifier is the prefix for a mangled C++ operator
414 #define IDENTIFIER_OPNAME_P(NODE) TREE_LANG_FLAG_2 (NODE)
416 /* Nonzero if this identifier is the name of a type-conversion
418 #define IDENTIFIER_TYPENAME_P(NODE) \
419 TREE_LANG_FLAG_4 (NODE)
421 /* Nonzero if this identifier is the name of a constructor or
423 #define IDENTIFIER_CTOR_OR_DTOR_P(NODE) \
424 TREE_LANG_FLAG_3 (NODE)
426 /* True iff NAME is the DECL_ASSEMBLER_NAME for an entity with vague
427 linkage which the prelinker has assigned to this translation
429 #define IDENTIFIER_REPO_CHOSEN(NAME) \
430 (TREE_LANG_FLAG_6 (NAME))
432 /* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */
433 #define C_TYPE_FIELDS_READONLY(TYPE) \
434 (LANG_TYPE_CLASS_CHECK (TYPE)->fields_readonly)
436 /* The tokens stored in the default argument. */
438 #define DEFARG_TOKENS(NODE) \
439 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->tokens)
440 #define DEFARG_INSTANTIATIONS(NODE) \
441 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->instantiations)
443 struct GTY (()) tree_default_arg {
444 struct tree_common common;
445 struct cp_token_cache *tokens;
446 VEC(tree,gc) *instantiations;
449 /* The condition associated with the static assertion. This must be
450 an integral constant expression. */
451 #define STATIC_ASSERT_CONDITION(NODE) \
452 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->condition)
454 /* The message associated with the static assertion. This must be a
455 string constant, which will be emitted as an error message when the
456 static assert condition is false. */
457 #define STATIC_ASSERT_MESSAGE(NODE) \
458 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->message)
460 /* Source location information for a static assertion. */
461 #define STATIC_ASSERT_SOURCE_LOCATION(NODE) \
462 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->location)
464 struct GTY (()) tree_static_assert {
465 struct tree_common common;
471 struct GTY (()) tree_argument_pack_select {
472 struct tree_common common;
477 /* The different kinds of traits that we encounter. */
479 typedef enum cp_trait_kind
481 CPTK_HAS_NOTHROW_ASSIGN,
482 CPTK_HAS_NOTHROW_CONSTRUCTOR,
483 CPTK_HAS_NOTHROW_COPY,
484 CPTK_HAS_TRIVIAL_ASSIGN,
485 CPTK_HAS_TRIVIAL_CONSTRUCTOR,
486 CPTK_HAS_TRIVIAL_COPY,
487 CPTK_HAS_TRIVIAL_DESTRUCTOR,
488 CPTK_HAS_VIRTUAL_DESTRUCTOR,
492 CPTK_IS_CONVERTIBLE_TO,
502 /* The types that we are processing. */
503 #define TRAIT_EXPR_TYPE1(NODE) \
504 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type1)
506 #define TRAIT_EXPR_TYPE2(NODE) \
507 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type2)
509 /* The specific trait that we are processing. */
510 #define TRAIT_EXPR_KIND(NODE) \
511 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->kind)
513 struct GTY (()) tree_trait_expr {
514 struct tree_common common;
517 enum cp_trait_kind kind;
520 enum cp_tree_node_structure_enum {
531 TS_CP_ARGUMENT_PACK_SELECT,
536 /* The resulting tree type. */
537 union GTY((desc ("cp_tree_node_structure (&%h)"),
538 chain_next ("(union lang_tree_node *)TREE_CHAIN (&%h.generic)"))) lang_tree_node {
539 union tree_node GTY ((tag ("TS_CP_GENERIC"),
540 desc ("tree_node_structure (&%h)"))) generic;
541 struct template_parm_index_s GTY ((tag ("TS_CP_TPI"))) tpi;
542 struct ptrmem_cst GTY ((tag ("TS_CP_PTRMEM"))) ptrmem;
543 struct tree_overload GTY ((tag ("TS_CP_OVERLOAD"))) overload;
544 struct tree_baselink GTY ((tag ("TS_CP_BASELINK"))) baselink;
545 struct tree_default_arg GTY ((tag ("TS_CP_DEFAULT_ARG"))) default_arg;
546 struct lang_identifier GTY ((tag ("TS_CP_IDENTIFIER"))) identifier;
547 struct tree_static_assert GTY ((tag ("TS_CP_STATIC_ASSERT")))
549 struct tree_argument_pack_select GTY ((tag ("TS_CP_ARGUMENT_PACK_SELECT")))
550 argument_pack_select;
551 struct tree_trait_expr GTY ((tag ("TS_CP_TRAIT_EXPR")))
559 CPTI_JAVA_SHORT_TYPE,
562 CPTI_JAVA_FLOAT_TYPE,
563 CPTI_JAVA_DOUBLE_TYPE,
565 CPTI_JAVA_BOOLEAN_TYPE,
568 CPTI_VTABLE_ENTRY_TYPE,
570 CPTI_VTABLE_INDEX_TYPE,
581 CPTI_CONST_TYPE_INFO_TYPE,
582 CPTI_TYPE_INFO_PTR_TYPE,
584 CPTI_GLOBAL_DELETE_FNDECL,
587 CPTI_CTOR_IDENTIFIER,
588 CPTI_COMPLETE_CTOR_IDENTIFIER,
589 CPTI_BASE_CTOR_IDENTIFIER,
590 CPTI_DTOR_IDENTIFIER,
591 CPTI_COMPLETE_DTOR_IDENTIFIER,
592 CPTI_BASE_DTOR_IDENTIFIER,
593 CPTI_DELETING_DTOR_IDENTIFIER,
594 CPTI_DELTA_IDENTIFIER,
595 CPTI_IN_CHARGE_IDENTIFIER,
596 CPTI_VTT_PARM_IDENTIFIER,
597 CPTI_NELTS_IDENTIFIER,
598 CPTI_THIS_IDENTIFIER,
600 CPTI_VPTR_IDENTIFIER,
604 CPTI_LANG_NAME_CPLUSPLUS,
607 CPTI_EMPTY_EXCEPT_SPEC,
610 CPTI_CALL_UNEXPECTED,
611 CPTI_ATEXIT_FN_PTR_TYPE,
621 extern GTY(()) tree cp_global_trees[CPTI_MAX];
623 #define java_byte_type_node cp_global_trees[CPTI_JAVA_BYTE_TYPE]
624 #define java_short_type_node cp_global_trees[CPTI_JAVA_SHORT_TYPE]
625 #define java_int_type_node cp_global_trees[CPTI_JAVA_INT_TYPE]
626 #define java_long_type_node cp_global_trees[CPTI_JAVA_LONG_TYPE]
627 #define java_float_type_node cp_global_trees[CPTI_JAVA_FLOAT_TYPE]
628 #define java_double_type_node cp_global_trees[CPTI_JAVA_DOUBLE_TYPE]
629 #define java_char_type_node cp_global_trees[CPTI_JAVA_CHAR_TYPE]
630 #define java_boolean_type_node cp_global_trees[CPTI_JAVA_BOOLEAN_TYPE]
632 #define wchar_decl_node cp_global_trees[CPTI_WCHAR_DECL]
633 #define vtable_entry_type cp_global_trees[CPTI_VTABLE_ENTRY_TYPE]
634 /* The type used to represent an offset by which to adjust the `this'
635 pointer in pointer-to-member types. */
636 #define delta_type_node cp_global_trees[CPTI_DELTA_TYPE]
637 /* The type used to represent an index into the vtable. */
638 #define vtable_index_type cp_global_trees[CPTI_VTABLE_INDEX_TYPE]
640 #define class_type_node cp_global_trees[CPTI_CLASS_TYPE]
641 #define unknown_type_node cp_global_trees[CPTI_UNKNOWN_TYPE]
642 #define init_list_type_node cp_global_trees[CPTI_INIT_LIST_TYPE]
643 #define vtbl_type_node cp_global_trees[CPTI_VTBL_TYPE]
644 #define vtbl_ptr_type_node cp_global_trees[CPTI_VTBL_PTR_TYPE]
645 #define std_node cp_global_trees[CPTI_STD]
646 #define abi_node cp_global_trees[CPTI_ABI]
647 #define const_type_info_type_node cp_global_trees[CPTI_CONST_TYPE_INFO_TYPE]
648 #define type_info_ptr_type cp_global_trees[CPTI_TYPE_INFO_PTR_TYPE]
649 #define abort_fndecl cp_global_trees[CPTI_ABORT_FNDECL]
650 #define global_delete_fndecl cp_global_trees[CPTI_GLOBAL_DELETE_FNDECL]
651 #define current_aggr cp_global_trees[CPTI_AGGR_TAG]
653 /* We cache these tree nodes so as to call get_identifier less
656 /* The name of a constructor that takes an in-charge parameter to
657 decide whether or not to construct virtual base classes. */
658 #define ctor_identifier cp_global_trees[CPTI_CTOR_IDENTIFIER]
659 /* The name of a constructor that constructs virtual base classes. */
660 #define complete_ctor_identifier cp_global_trees[CPTI_COMPLETE_CTOR_IDENTIFIER]
661 /* The name of a constructor that does not construct virtual base classes. */
662 #define base_ctor_identifier cp_global_trees[CPTI_BASE_CTOR_IDENTIFIER]
663 /* The name of a destructor that takes an in-charge parameter to
664 decide whether or not to destroy virtual base classes and whether
665 or not to delete the object. */
666 #define dtor_identifier cp_global_trees[CPTI_DTOR_IDENTIFIER]
667 /* The name of a destructor that destroys virtual base classes. */
668 #define complete_dtor_identifier cp_global_trees[CPTI_COMPLETE_DTOR_IDENTIFIER]
669 /* The name of a destructor that does not destroy virtual base
671 #define base_dtor_identifier cp_global_trees[CPTI_BASE_DTOR_IDENTIFIER]
672 /* The name of a destructor that destroys virtual base classes, and
673 then deletes the entire object. */
674 #define deleting_dtor_identifier cp_global_trees[CPTI_DELETING_DTOR_IDENTIFIER]
675 #define delta_identifier cp_global_trees[CPTI_DELTA_IDENTIFIER]
676 #define in_charge_identifier cp_global_trees[CPTI_IN_CHARGE_IDENTIFIER]
677 /* The name of the parameter that contains a pointer to the VTT to use
678 for this subobject constructor or destructor. */
679 #define vtt_parm_identifier cp_global_trees[CPTI_VTT_PARM_IDENTIFIER]
680 #define nelts_identifier cp_global_trees[CPTI_NELTS_IDENTIFIER]
681 #define this_identifier cp_global_trees[CPTI_THIS_IDENTIFIER]
682 #define pfn_identifier cp_global_trees[CPTI_PFN_IDENTIFIER]
683 #define vptr_identifier cp_global_trees[CPTI_VPTR_IDENTIFIER]
684 /* The name of the std namespace. */
685 #define std_identifier cp_global_trees[CPTI_STD_IDENTIFIER]
686 #define lang_name_c cp_global_trees[CPTI_LANG_NAME_C]
687 #define lang_name_cplusplus cp_global_trees[CPTI_LANG_NAME_CPLUSPLUS]
688 #define lang_name_java cp_global_trees[CPTI_LANG_NAME_JAVA]
690 /* Exception specifier used for throw(). */
691 #define empty_except_spec cp_global_trees[CPTI_EMPTY_EXCEPT_SPEC]
693 /* If non-NULL, a POINTER_TYPE equivalent to (java::lang::Class*). */
694 #define jclass_node cp_global_trees[CPTI_JCLASS]
696 /* The declaration for `std::terminate'. */
697 #define terminate_node cp_global_trees[CPTI_TERMINATE]
699 /* The declaration for "__cxa_call_unexpected". */
700 #define call_unexpected_node cp_global_trees[CPTI_CALL_UNEXPECTED]
702 /* The type of the function-pointer argument to "__cxa_atexit" (or
703 "std::atexit", if "__cxa_atexit" is not being used). */
704 #define atexit_fn_ptr_type_node cp_global_trees[CPTI_ATEXIT_FN_PTR_TYPE]
706 /* A pointer to `std::atexit'. */
707 #define atexit_node cp_global_trees[CPTI_ATEXIT]
709 /* A pointer to `__dso_handle'. */
710 #define dso_handle_node cp_global_trees[CPTI_DSO_HANDLE]
712 /* The declaration of the dynamic_cast runtime. */
713 #define dynamic_cast_node cp_global_trees[CPTI_DCAST]
715 /* The type of a destructor. */
716 #define cleanup_type cp_global_trees[CPTI_CLEANUP_TYPE]
718 /* The type of the vtt parameter passed to subobject constructors and
720 #define vtt_parm_type cp_global_trees[CPTI_VTT_PARM_TYPE]
722 /* A TREE_LIST of the dynamic classes whose vtables may have to be
723 emitted in this translation unit. */
725 #define keyed_classes cp_global_trees[CPTI_KEYED_CLASSES]
727 /* Node to indicate default access. This must be distinct from the
728 access nodes in tree.h. */
730 #define access_default_node null_node
734 struct GTY(()) saved_scope {
735 VEC(cxx_saved_binding,gc) *old_bindings;
740 tree access_specifier;
742 VEC(tree,gc) *lang_base;
745 struct cp_binding_level *x_previous_class_level;
748 int x_processing_template_decl;
749 int x_processing_specialization;
750 BOOL_BITFIELD x_processing_explicit_instantiation : 1;
751 BOOL_BITFIELD need_pop_function_context : 1;
753 int unevaluated_operand;
754 int inhibit_evaluation_warnings;
756 struct stmt_tree_s x_stmt_tree;
758 struct cp_binding_level *class_bindings;
759 struct cp_binding_level *bindings;
761 struct saved_scope *prev;
764 /* The current open namespace. */
766 #define current_namespace scope_chain->old_namespace
768 /* The stack for namespaces of current declarations. */
770 #define decl_namespace_list scope_chain->decl_ns_list
772 /* IDENTIFIER_NODE: name of current class */
774 #define current_class_name scope_chain->class_name
776 /* _TYPE: the type of the current class */
778 #define current_class_type scope_chain->class_type
780 /* When parsing a class definition, the access specifier most recently
781 given by the user, or, if no access specifier was given, the
782 default value appropriate for the kind of class (i.e., struct,
785 #define current_access_specifier scope_chain->access_specifier
787 /* Pointer to the top of the language name stack. */
789 #define current_lang_base scope_chain->lang_base
790 #define current_lang_name scope_chain->lang_name
792 /* When parsing a template declaration, a TREE_LIST represents the
793 active template parameters. Each node in the list represents one
794 level of template parameters. The innermost level is first in the
795 list. The depth of each level is stored as an INTEGER_CST in the
796 TREE_PURPOSE of each node. The parameters for that level are
797 stored in the TREE_VALUE. */
799 #define current_template_parms scope_chain->template_parms
801 #define processing_template_decl scope_chain->x_processing_template_decl
802 #define processing_specialization scope_chain->x_processing_specialization
803 #define processing_explicit_instantiation scope_chain->x_processing_explicit_instantiation
805 /* The cached class binding level, from the most recently exited
806 class, or NULL if none. */
808 #define previous_class_level scope_chain->x_previous_class_level
810 /* A list of private types mentioned, for deferred access checking. */
812 extern GTY(()) struct saved_scope *scope_chain;
814 struct GTY(()) cxx_int_tree_map {
819 extern unsigned int cxx_int_tree_map_hash (const void *);
820 extern int cxx_int_tree_map_eq (const void *, const void *);
822 /* Global state pertinent to the current function. */
824 struct GTY(()) language_function {
825 struct c_language_function base;
828 tree x_current_class_ptr;
829 tree x_current_class_ref;
830 tree x_eh_spec_block;
831 tree x_in_charge_parm;
835 BOOL_BITFIELD returns_value : 1;
836 BOOL_BITFIELD returns_null : 1;
837 BOOL_BITFIELD returns_abnormally : 1;
838 BOOL_BITFIELD in_function_try_handler : 1;
839 BOOL_BITFIELD in_base_initializer : 1;
841 /* True if this function can throw an exception. */
842 BOOL_BITFIELD can_throw : 1;
844 htab_t GTY((param_is(struct named_label_entry))) x_named_labels;
845 struct cp_binding_level *bindings;
846 VEC(tree,gc) *x_local_names;
847 htab_t GTY((param_is (struct cxx_int_tree_map))) extern_decl_map;
850 /* The current C++-specific per-function global variables. */
852 #define cp_function_chain (cfun->language)
854 /* In a constructor destructor, the point at which all derived class
855 destroying/construction has been done. I.e., just before a
856 constructor returns, or before any base class destroying will be done
859 #define cdtor_label cp_function_chain->x_cdtor_label
861 /* When we're processing a member function, current_class_ptr is the
862 PARM_DECL for the `this' pointer. The current_class_ref is an
863 expression for `*this'. */
865 #define current_class_ptr \
866 (cfun ? cp_function_chain->x_current_class_ptr : NULL_TREE)
867 #define current_class_ref \
868 (cfun ? cp_function_chain->x_current_class_ref : NULL_TREE)
870 /* The EH_SPEC_BLOCK for the exception-specifiers for the current
873 #define current_eh_spec_block cp_function_chain->x_eh_spec_block
875 /* The `__in_chrg' parameter for the current function. Only used for
876 constructors and destructors. */
878 #define current_in_charge_parm cp_function_chain->x_in_charge_parm
880 /* The `__vtt_parm' parameter for the current function. Only used for
881 constructors and destructors. */
883 #define current_vtt_parm cp_function_chain->x_vtt_parm
885 /* Set to 0 at beginning of a function definition, set to 1 if
886 a return statement that specifies a return value is seen. */
888 #define current_function_returns_value cp_function_chain->returns_value
890 /* Set to 0 at beginning of a function definition, set to 1 if
891 a return statement with no argument is seen. */
893 #define current_function_returns_null cp_function_chain->returns_null
895 /* Set to 0 at beginning of a function definition, set to 1 if
896 a call to a noreturn function is seen. */
898 #define current_function_returns_abnormally \
899 cp_function_chain->returns_abnormally
901 /* Nonzero if we are processing a base initializer. Zero elsewhere. */
902 #define in_base_initializer cp_function_chain->in_base_initializer
904 #define in_function_try_handler cp_function_chain->in_function_try_handler
906 /* Expression always returned from function, or error_mark_node
907 otherwise, for use by the automatic named return value optimization. */
909 #define current_function_return_value \
910 (cp_function_chain->x_return_value)
912 /* True if NAME is the IDENTIFIER_NODE for an overloaded "operator
913 new" or "operator delete". */
914 #define NEW_DELETE_OPNAME_P(NAME) \
915 ((NAME) == ansi_opname (NEW_EXPR) \
916 || (NAME) == ansi_opname (VEC_NEW_EXPR) \
917 || (NAME) == ansi_opname (DELETE_EXPR) \
918 || (NAME) == ansi_opname (VEC_DELETE_EXPR))
920 #define ansi_opname(CODE) \
921 (operator_name_info[(int) (CODE)].identifier)
922 #define ansi_assopname(CODE) \
923 (assignment_operator_name_info[(int) (CODE)].identifier)
925 /* True if NODE is an erroneous expression. */
927 #define error_operand_p(NODE) \
928 ((NODE) == error_mark_node \
929 || ((NODE) && TREE_TYPE ((NODE)) == error_mark_node))
931 /* TRUE if a tree code represents a statement. */
932 extern bool statement_code_p[MAX_TREE_CODES];
934 #define STATEMENT_CODE_P(CODE) statement_code_p[(int) (CODE)]
936 enum languages { lang_c, lang_cplusplus, lang_java };
938 /* Macros to make error reporting functions' lives easier. */
939 #define TYPE_IDENTIFIER(NODE) (DECL_NAME (TYPE_NAME (NODE)))
940 #define TYPE_LINKAGE_IDENTIFIER(NODE) \
941 (TYPE_IDENTIFIER (TYPE_MAIN_VARIANT (NODE)))
942 #define TYPE_NAME_STRING(NODE) (IDENTIFIER_POINTER (TYPE_IDENTIFIER (NODE)))
943 #define TYPE_NAME_LENGTH(NODE) (IDENTIFIER_LENGTH (TYPE_IDENTIFIER (NODE)))
945 /* Nonzero if NODE has no name for linkage purposes. */
946 #define TYPE_ANONYMOUS_P(NODE) \
947 (TAGGED_TYPE_P (NODE) && ANON_AGGRNAME_P (TYPE_LINKAGE_IDENTIFIER (NODE)))
949 /* The _DECL for this _TYPE. */
950 #define TYPE_MAIN_DECL(NODE) (TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE)))
952 /* Nonzero if T is a class (or struct or union) type. Also nonzero
953 for template type parameters, typename types, and instantiated
954 template template parameters. Keep these checks in ascending code
956 #define MAYBE_CLASS_TYPE_P(T) \
957 (TREE_CODE (T) == TEMPLATE_TYPE_PARM \
958 || TREE_CODE (T) == TYPENAME_TYPE \
959 || TREE_CODE (T) == TYPEOF_TYPE \
960 || TREE_CODE (T) == BOUND_TEMPLATE_TEMPLATE_PARM \
961 || TREE_CODE (T) == DECLTYPE_TYPE \
964 /* Set CLASS_TYPE_P for T to VAL. T must be a class, struct, or
966 #define SET_CLASS_TYPE_P(T, VAL) \
967 (TYPE_LANG_FLAG_5 (T) = (VAL))
969 /* Nonzero if T is a class type. Zero for template type parameters,
970 typename types, and so forth. */
971 #define CLASS_TYPE_P(T) \
972 (RECORD_OR_UNION_CODE_P (TREE_CODE (T)) && TYPE_LANG_FLAG_5 (T))
974 /* Nonzero if T is a class type but not an union. */
975 #define NON_UNION_CLASS_TYPE_P(T) \
976 (CLASS_TYPE_P (T) && TREE_CODE (T) != UNION_TYPE)
978 /* Keep these checks in ascending code order. */
979 #define RECORD_OR_UNION_CODE_P(T) \
980 ((T) == RECORD_TYPE || (T) == UNION_TYPE)
981 #define TAGGED_TYPE_P(T) \
982 (CLASS_TYPE_P (T) || TREE_CODE (T) == ENUMERAL_TYPE)
983 #define IS_OVERLOAD_TYPE(T) TAGGED_TYPE_P (T)
985 /* True if this a "Java" type, defined in 'extern "Java"'. */
986 #define TYPE_FOR_JAVA(NODE) TYPE_LANG_FLAG_3 (NODE)
988 /* True if this type is dependent. This predicate is only valid if
989 TYPE_DEPENDENT_P_VALID is true. */
990 #define TYPE_DEPENDENT_P(NODE) TYPE_LANG_FLAG_0 (NODE)
992 /* True if dependent_type_p has been called for this type, with the
993 result that TYPE_DEPENDENT_P is valid. */
994 #define TYPE_DEPENDENT_P_VALID(NODE) TYPE_LANG_FLAG_6(NODE)
996 /* Nonzero if this type is const-qualified. */
997 #define CP_TYPE_CONST_P(NODE) \
998 ((cp_type_quals (NODE) & TYPE_QUAL_CONST) != 0)
1000 /* Nonzero if this type is volatile-qualified. */
1001 #define CP_TYPE_VOLATILE_P(NODE) \
1002 ((cp_type_quals (NODE) & TYPE_QUAL_VOLATILE) != 0)
1004 /* Nonzero if this type is restrict-qualified. */
1005 #define CP_TYPE_RESTRICT_P(NODE) \
1006 ((cp_type_quals (NODE) & TYPE_QUAL_RESTRICT) != 0)
1008 /* Nonzero if this type is const-qualified, but not
1009 volatile-qualified. Other qualifiers are ignored. This macro is
1010 used to test whether or not it is OK to bind an rvalue to a
1012 #define CP_TYPE_CONST_NON_VOLATILE_P(NODE) \
1013 ((cp_type_quals (NODE) & (TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE)) \
1016 #define FUNCTION_ARG_CHAIN(NODE) \
1017 TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (NODE)))
1019 /* Given a FUNCTION_DECL, returns the first TREE_LIST out of TYPE_ARG_TYPES
1020 which refers to a user-written parameter. */
1021 #define FUNCTION_FIRST_USER_PARMTYPE(NODE) \
1022 skip_artificial_parms_for ((NODE), TYPE_ARG_TYPES (TREE_TYPE (NODE)))
1024 /* Similarly, but for DECL_ARGUMENTS. */
1025 #define FUNCTION_FIRST_USER_PARM(NODE) \
1026 skip_artificial_parms_for ((NODE), DECL_ARGUMENTS (NODE))
1028 /* Nonzero iff TYPE is derived from PARENT. Ignores accessibility and
1029 ambiguity issues. */
1030 #define DERIVED_FROM_P(PARENT, TYPE) \
1031 (lookup_base ((TYPE), (PARENT), ba_any, NULL) != NULL_TREE)
1032 /* Nonzero iff TYPE is uniquely derived from PARENT. Ignores
1034 #define UNIQUELY_DERIVED_FROM_P(PARENT, TYPE) \
1035 (lookup_base ((TYPE), (PARENT), ba_unique | ba_quiet, NULL) != NULL_TREE)
1036 /* Nonzero iff TYPE is publicly & uniquely derived from PARENT. */
1037 #define PUBLICLY_UNIQUELY_DERIVED_P(PARENT, TYPE) \
1038 (lookup_base ((TYPE), (PARENT), ba_ignore_scope | ba_check | ba_quiet, \
1041 /* Gives the visibility specification for a class type. */
1042 #define CLASSTYPE_VISIBILITY(TYPE) \
1043 DECL_VISIBILITY (TYPE_NAME (TYPE))
1044 #define CLASSTYPE_VISIBILITY_SPECIFIED(TYPE) \
1045 DECL_VISIBILITY_SPECIFIED (TYPE_NAME (TYPE))
1047 typedef struct GTY (()) tree_pair_s {
1051 typedef tree_pair_s *tree_pair_p;
1052 DEF_VEC_O (tree_pair_s);
1053 DEF_VEC_ALLOC_O (tree_pair_s,gc);
1055 /* This is a few header flags for 'struct lang_type'. Actually,
1056 all but the first are used only for lang_type_class; they
1057 are put in this structure to save space. */
1058 struct GTY(()) lang_type_header {
1059 BOOL_BITFIELD is_lang_type_class : 1;
1061 BOOL_BITFIELD has_type_conversion : 1;
1062 BOOL_BITFIELD has_init_ref : 1;
1063 BOOL_BITFIELD has_default_ctor : 1;
1064 BOOL_BITFIELD const_needs_init : 1;
1065 BOOL_BITFIELD ref_needs_init : 1;
1066 BOOL_BITFIELD has_const_assign_ref : 1;
1068 BOOL_BITFIELD spare : 1;
1071 /* This structure provides additional information above and beyond
1072 what is provide in the ordinary tree_type. In the past, we used it
1073 for the types of class types, template parameters types, typename
1074 types, and so forth. However, there can be many (tens to hundreds
1075 of thousands) of template parameter types in a compilation, and
1076 there's no need for this additional information in that case.
1077 Therefore, we now use this data structure only for class types.
1079 In the past, it was thought that there would be relatively few
1080 class types. However, in the presence of heavy use of templates,
1081 many (i.e., thousands) of classes can easily be generated.
1082 Therefore, we should endeavor to keep the size of this structure to
1084 struct GTY(()) lang_type_class {
1085 struct lang_type_header h;
1087 unsigned char align;
1089 unsigned has_mutable : 1;
1090 unsigned com_interface : 1;
1091 unsigned non_pod_class : 1;
1092 unsigned nearly_empty_p : 1;
1093 unsigned user_align : 1;
1094 unsigned has_assign_ref : 1;
1095 unsigned has_new : 1;
1096 unsigned has_array_new : 1;
1098 unsigned gets_delete : 2;
1099 unsigned interface_only : 1;
1100 unsigned interface_unknown : 1;
1101 unsigned contains_empty_class_p : 1;
1102 unsigned anon_aggr : 1;
1103 unsigned non_zero_init : 1;
1104 unsigned empty_p : 1;
1106 unsigned vec_new_uses_cookie : 1;
1107 unsigned declared_class : 1;
1108 unsigned diamond_shaped : 1;
1109 unsigned repeated_base : 1;
1110 unsigned being_defined : 1;
1111 unsigned java_interface : 1;
1112 unsigned debug_requested : 1;
1113 unsigned fields_readonly : 1;
1115 unsigned use_template : 2;
1116 unsigned ptrmemfunc_flag : 1;
1117 unsigned was_anonymous : 1;
1118 unsigned lazy_default_ctor : 1;
1119 unsigned lazy_copy_ctor : 1;
1120 unsigned lazy_assignment_op : 1;
1121 unsigned lazy_destructor : 1;
1123 unsigned has_const_init_ref : 1;
1124 unsigned has_complex_init_ref : 1;
1125 unsigned has_complex_assign_ref : 1;
1126 unsigned non_aggregate : 1;
1127 unsigned has_complex_dflt : 1;
1128 unsigned has_list_ctor : 1;
1129 unsigned non_std_layout : 1;
1131 /* When adding a flag here, consider whether or not it ought to
1132 apply to a template instance if it applies to the template. If
1133 so, make sure to copy it in instantiate_class_template! */
1135 /* There are some bits left to fill out a 32-bit word. Keep track
1136 of this by updating the size of this bitfield whenever you add or
1141 VEC(tree_pair_s,gc) *vcall_indices;
1144 VEC(tree,gc) *vbases;
1145 binding_table nested_udts;
1147 VEC(tree,gc) *pure_virtuals;
1148 tree friend_classes;
1149 VEC(tree,gc) * GTY((reorder ("resort_type_method_vec"))) methods;
1153 tree befriending_classes;
1154 /* In a RECORD_TYPE, information specific to Objective-C++, such
1155 as a list of adopted protocols or a pointer to a corresponding
1156 @interface. See objc/objc-act.h for details. */
1158 /* sorted_fields is sorted based on a pointer, so we need to be able
1159 to resort it if pointers get rearranged. */
1160 struct sorted_fields_type * GTY ((reorder ("resort_sorted_fields")))
1164 struct GTY(()) lang_type_ptrmem {
1165 struct lang_type_header h;
1169 struct GTY(()) lang_type {
1172 struct lang_type_header GTY((skip (""))) h;
1173 struct lang_type_class GTY((tag ("1"))) c;
1174 struct lang_type_ptrmem GTY((tag ("0"))) ptrmem;
1175 } GTY((desc ("%h.h.is_lang_type_class"))) u;
1178 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1180 #define LANG_TYPE_CLASS_CHECK(NODE) __extension__ \
1181 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1182 if (! lt->u.h.is_lang_type_class) \
1183 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1186 #define LANG_TYPE_PTRMEM_CHECK(NODE) __extension__ \
1187 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1188 if (lt->u.h.is_lang_type_class) \
1189 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1194 #define LANG_TYPE_CLASS_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.c)
1195 #define LANG_TYPE_PTRMEM_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.ptrmem)
1197 #endif /* ENABLE_TREE_CHECKING */
1199 /* Nonzero for _CLASSTYPE means that operator delete is defined. */
1200 #define TYPE_GETS_DELETE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->gets_delete)
1201 #define TYPE_GETS_REG_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 1)
1203 /* Nonzero if `new NODE[x]' should cause the allocation of extra
1204 storage to indicate how many array elements are in use. */
1205 #define TYPE_VEC_NEW_USES_COOKIE(NODE) \
1206 (CLASS_TYPE_P (NODE) \
1207 && LANG_TYPE_CLASS_CHECK (NODE)->vec_new_uses_cookie)
1209 /* Nonzero means that this _CLASSTYPE node defines ways of converting
1210 itself to other types. */
1211 #define TYPE_HAS_CONVERSION(NODE) \
1212 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_type_conversion)
1214 /* Nonzero means that NODE (a class type) has a default constructor --
1215 but that it has not yet been declared. */
1216 #define CLASSTYPE_LAZY_DEFAULT_CTOR(NODE) \
1217 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_default_ctor)
1219 /* Nonzero means that NODE (a class type) has a copy constructor --
1220 but that it has not yet been declared. */
1221 #define CLASSTYPE_LAZY_COPY_CTOR(NODE) \
1222 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_ctor)
1224 /* Nonzero means that NODE (a class type) has an assignment operator
1225 -- but that it has not yet been declared. */
1226 #define CLASSTYPE_LAZY_ASSIGNMENT_OP(NODE) \
1227 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_assignment_op)
1229 /* Nonzero means that NODE (a class type) has a destructor -- but that
1230 it has not yet been declared. */
1231 #define CLASSTYPE_LAZY_DESTRUCTOR(NODE) \
1232 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_destructor)
1234 /* Nonzero means that this _CLASSTYPE node overloads operator=(X&). */
1235 #define TYPE_HAS_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_assign_ref)
1237 /* True iff the class type NODE has an "operator =" whose parameter
1238 has a parameter of type "const X&". */
1239 #define TYPE_HAS_CONST_ASSIGN_REF(NODE) \
1240 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_const_assign_ref)
1242 /* Nonzero means that this _CLASSTYPE node has an X(X&) constructor. */
1243 #define TYPE_HAS_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->h.has_init_ref)
1244 #define TYPE_HAS_CONST_INIT_REF(NODE) \
1245 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_init_ref)
1247 /* Nonzero if this class has an X(initializer_list<T>) constructor. */
1248 #define TYPE_HAS_LIST_CTOR(NODE) \
1249 (LANG_TYPE_CLASS_CHECK (NODE)->has_list_ctor)
1251 /* Nonzero if this class defines an overloaded operator new. (An
1252 operator new [] doesn't count.) */
1253 #define TYPE_HAS_NEW_OPERATOR(NODE) \
1254 (LANG_TYPE_CLASS_CHECK (NODE)->has_new)
1256 /* Nonzero if this class defines an overloaded operator new[]. */
1257 #define TYPE_HAS_ARRAY_NEW_OPERATOR(NODE) \
1258 (LANG_TYPE_CLASS_CHECK (NODE)->has_array_new)
1260 /* Nonzero means that this type is being defined. I.e., the left brace
1261 starting the definition of this type has been seen. */
1262 #define TYPE_BEING_DEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->being_defined)
1264 /* Mark bits for repeated base checks. */
1265 #define TYPE_MARKED_P(NODE) TREE_LANG_FLAG_6 (TYPE_CHECK (NODE))
1267 /* Nonzero if the class NODE has multiple paths to the same (virtual)
1269 #define CLASSTYPE_DIAMOND_SHAPED_P(NODE) \
1270 (LANG_TYPE_CLASS_CHECK(NODE)->diamond_shaped)
1272 /* Nonzero if the class NODE has multiple instances of the same base
1274 #define CLASSTYPE_REPEATED_BASE_P(NODE) \
1275 (LANG_TYPE_CLASS_CHECK(NODE)->repeated_base)
1277 /* The member function with which the vtable will be emitted:
1278 the first noninline non-pure-virtual member function. NULL_TREE
1279 if there is no key function or if this is a class template */
1280 #define CLASSTYPE_KEY_METHOD(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->key_method)
1282 /* Vector member functions defined in this class. Each element is
1283 either a FUNCTION_DECL, a TEMPLATE_DECL, or an OVERLOAD. All
1284 functions with the same name end up in the same slot. The first
1285 two elements are for constructors, and destructors, respectively.
1286 All template conversion operators to innermost template dependent
1287 types are overloaded on the next slot, if they exist. Note, the
1288 names for these functions will not all be the same. The
1289 non-template conversion operators & templated conversions to
1290 non-innermost template types are next, followed by ordinary member
1291 functions. There may be empty entries at the end of the vector.
1292 The conversion operators are unsorted. The ordinary member
1293 functions are sorted, once the class is complete. */
1294 #define CLASSTYPE_METHOD_VEC(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->methods)
1296 /* For class templates, this is a TREE_LIST of all member data,
1297 functions, types, and friends in the order of declaration.
1298 The TREE_PURPOSE of each TREE_LIST is NULL_TREE for a friend,
1299 and the RECORD_TYPE for the class template otherwise. */
1300 #define CLASSTYPE_DECL_LIST(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->decl_list)
1302 /* The slot in the CLASSTYPE_METHOD_VEC where constructors go. */
1303 #define CLASSTYPE_CONSTRUCTOR_SLOT 0
1305 /* The slot in the CLASSTYPE_METHOD_VEC where destructors go. */
1306 #define CLASSTYPE_DESTRUCTOR_SLOT 1
1308 /* The first slot in the CLASSTYPE_METHOD_VEC where conversion
1309 operators can appear. */
1310 #define CLASSTYPE_FIRST_CONVERSION_SLOT 2
1312 /* A FUNCTION_DECL or OVERLOAD for the constructors for NODE. These
1313 are the constructors that take an in-charge parameter. */
1314 #define CLASSTYPE_CONSTRUCTORS(NODE) \
1315 (VEC_index (tree, CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_CONSTRUCTOR_SLOT))
1317 /* A FUNCTION_DECL for the destructor for NODE. These are the
1318 destructors that take an in-charge parameter. If
1319 CLASSTYPE_LAZY_DESTRUCTOR is true, then this entry will be NULL
1320 until the destructor is created with lazily_declare_fn. */
1321 #define CLASSTYPE_DESTRUCTORS(NODE) \
1322 (CLASSTYPE_METHOD_VEC (NODE) \
1323 ? VEC_index (tree, CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_DESTRUCTOR_SLOT) \
1326 /* A dictionary of the nested user-defined-types (class-types, or enums)
1327 found within this class. This table includes nested member class
1329 #define CLASSTYPE_NESTED_UTDS(NODE) \
1330 (LANG_TYPE_CLASS_CHECK (NODE)->nested_udts)
1332 /* Nonzero if NODE has a primary base class, i.e., a base class with
1333 which it shares the virtual function table pointer. */
1334 #define CLASSTYPE_HAS_PRIMARY_BASE_P(NODE) \
1335 (CLASSTYPE_PRIMARY_BINFO (NODE) != NULL_TREE)
1337 /* If non-NULL, this is the binfo for the primary base class, i.e.,
1338 the base class which contains the virtual function table pointer
1340 #define CLASSTYPE_PRIMARY_BINFO(NODE) \
1341 (LANG_TYPE_CLASS_CHECK (NODE)->primary_base)
1343 /* A vector of BINFOs for the direct and indirect virtual base classes
1344 that this type uses in a post-order depth-first left-to-right
1345 order. (In other words, these bases appear in the order that they
1346 should be initialized.) */
1347 #define CLASSTYPE_VBASECLASSES(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->vbases)
1349 /* The type corresponding to NODE when NODE is used as a base class,
1350 i.e., NODE without virtual base classes. */
1352 #define CLASSTYPE_AS_BASE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->as_base)
1354 /* True iff NODE is the CLASSTYPE_AS_BASE version of some type. */
1356 #define IS_FAKE_BASE_TYPE(NODE) \
1357 (TREE_CODE (NODE) == RECORD_TYPE \
1358 && TYPE_CONTEXT (NODE) && CLASS_TYPE_P (TYPE_CONTEXT (NODE)) \
1359 && CLASSTYPE_AS_BASE (TYPE_CONTEXT (NODE)) == (NODE))
1361 /* These are the size and alignment of the type without its virtual
1362 base classes, for when we use this type as a base itself. */
1363 #define CLASSTYPE_SIZE(NODE) TYPE_SIZE (CLASSTYPE_AS_BASE (NODE))
1364 #define CLASSTYPE_SIZE_UNIT(NODE) TYPE_SIZE_UNIT (CLASSTYPE_AS_BASE (NODE))
1365 #define CLASSTYPE_ALIGN(NODE) TYPE_ALIGN (CLASSTYPE_AS_BASE (NODE))
1366 #define CLASSTYPE_USER_ALIGN(NODE) TYPE_USER_ALIGN (CLASSTYPE_AS_BASE (NODE))
1368 /* The alignment of NODE, without its virtual bases, in bytes. */
1369 #define CLASSTYPE_ALIGN_UNIT(NODE) \
1370 (CLASSTYPE_ALIGN (NODE) / BITS_PER_UNIT)
1372 /* True if this a Java interface type, declared with
1373 '__attribute__ ((java_interface))'. */
1374 #define TYPE_JAVA_INTERFACE(NODE) \
1375 (LANG_TYPE_CLASS_CHECK (NODE)->java_interface)
1377 /* A VEC(tree) of virtual functions which cannot be inherited by
1378 derived classes. When deriving from this type, the derived
1379 class must provide its own definition for each of these functions. */
1380 #define CLASSTYPE_PURE_VIRTUALS(NODE) \
1381 (LANG_TYPE_CLASS_CHECK (NODE)->pure_virtuals)
1383 /* Nonzero means that this type has an X() constructor. */
1384 #define TYPE_HAS_DEFAULT_CONSTRUCTOR(NODE) \
1385 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_default_ctor)
1387 /* Nonzero means that this type contains a mutable member. */
1388 #define CLASSTYPE_HAS_MUTABLE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_mutable)
1389 #define TYPE_HAS_MUTABLE_P(NODE) (cp_has_mutable_p (NODE))
1391 /* Nonzero means that this class type is not POD for the purpose of layout
1392 (as defined in the ABI). This is different from the language's POD. */
1393 #define CLASSTYPE_NON_LAYOUT_POD_P(NODE) \
1394 (LANG_TYPE_CLASS_CHECK (NODE)->non_pod_class)
1396 /* Nonzero means that this class type is a non-standard-layout class. */
1397 #define CLASSTYPE_NON_STD_LAYOUT(NODE) \
1398 (LANG_TYPE_CLASS_CHECK (NODE)->non_std_layout)
1400 /* Nonzero means that this class contains pod types whose default
1401 initialization is not a zero initialization (namely, pointers to
1403 #define CLASSTYPE_NON_ZERO_INIT_P(NODE) \
1404 (LANG_TYPE_CLASS_CHECK (NODE)->non_zero_init)
1406 /* Nonzero if this class is "empty" in the sense of the C++ ABI. */
1407 #define CLASSTYPE_EMPTY_P(NODE) \
1408 (LANG_TYPE_CLASS_CHECK (NODE)->empty_p)
1410 /* Nonzero if this class is "nearly empty", i.e., contains only a
1411 virtual function table pointer. */
1412 #define CLASSTYPE_NEARLY_EMPTY_P(NODE) \
1413 (LANG_TYPE_CLASS_CHECK (NODE)->nearly_empty_p)
1415 /* Nonzero if this class contains an empty subobject. */
1416 #define CLASSTYPE_CONTAINS_EMPTY_CLASS_P(NODE) \
1417 (LANG_TYPE_CLASS_CHECK (NODE)->contains_empty_class_p)
1419 /* A list of class types of which this type is a friend. The
1420 TREE_VALUE is normally a TYPE, but will be a TEMPLATE_DECL in the
1421 case of a template friend. */
1422 #define CLASSTYPE_FRIEND_CLASSES(NODE) \
1423 (LANG_TYPE_CLASS_CHECK (NODE)->friend_classes)
1425 /* A list of the classes which grant friendship to this class. */
1426 #define CLASSTYPE_BEFRIENDING_CLASSES(NODE) \
1427 (LANG_TYPE_CLASS_CHECK (NODE)->befriending_classes)
1429 /* Say whether this node was declared as a "class" or a "struct". */
1430 #define CLASSTYPE_DECLARED_CLASS(NODE) \
1431 (LANG_TYPE_CLASS_CHECK (NODE)->declared_class)
1433 /* Nonzero if this class has const members
1434 which have no specified initialization. */
1435 #define CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE) \
1436 (TYPE_LANG_SPECIFIC (NODE) \
1437 ? LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init : 0)
1438 #define SET_CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE, VALUE) \
1439 (LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init = (VALUE))
1441 /* Nonzero if this class has ref members
1442 which have no specified initialization. */
1443 #define CLASSTYPE_REF_FIELDS_NEED_INIT(NODE) \
1444 (TYPE_LANG_SPECIFIC (NODE) \
1445 ? LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init : 0)
1446 #define SET_CLASSTYPE_REF_FIELDS_NEED_INIT(NODE, VALUE) \
1447 (LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init = (VALUE))
1449 /* Nonzero if this class is included from a header file which employs
1450 `#pragma interface', and it is not included in its implementation file. */
1451 #define CLASSTYPE_INTERFACE_ONLY(NODE) \
1452 (LANG_TYPE_CLASS_CHECK (NODE)->interface_only)
1454 /* True if we have already determined whether or not vtables, VTTs,
1455 typeinfo, and other similar per-class data should be emitted in
1456 this translation unit. This flag does not indicate whether or not
1457 these items should be emitted; it only indicates that we know one
1458 way or the other. */
1459 #define CLASSTYPE_INTERFACE_KNOWN(NODE) \
1460 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown == 0)
1461 /* The opposite of CLASSTYPE_INTERFACE_KNOWN. */
1462 #define CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1463 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown)
1465 #define SET_CLASSTYPE_INTERFACE_UNKNOWN_X(NODE,X) \
1466 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = !!(X))
1467 #define SET_CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1468 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 1)
1469 #define SET_CLASSTYPE_INTERFACE_KNOWN(NODE) \
1470 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 0)
1472 /* Nonzero if a _DECL node requires us to output debug info for this class. */
1473 #define CLASSTYPE_DEBUG_REQUESTED(NODE) \
1474 (LANG_TYPE_CLASS_CHECK (NODE)->debug_requested)
1476 /* Additional macros for inheritance information. */
1478 /* Nonzero means that this class is on a path leading to a new vtable. */
1479 #define BINFO_VTABLE_PATH_MARKED(NODE) BINFO_FLAG_1 (NODE)
1481 /* Nonzero means B (a BINFO) has its own vtable. Any copies will not
1482 have this flag set. */
1483 #define BINFO_NEW_VTABLE_MARKED(B) (BINFO_FLAG_2 (B))
1485 /* Compare a BINFO_TYPE with another type for equality. For a binfo,
1486 this is functionally equivalent to using same_type_p, but
1487 measurably faster. At least one of the arguments must be a
1488 BINFO_TYPE. The other can be a BINFO_TYPE or a regular type. If
1489 BINFO_TYPE(T) ever stops being the main variant of the class the
1490 binfo is for, this macro must change. */
1491 #define SAME_BINFO_TYPE_P(A, B) ((A) == (B))
1493 /* Any subobject that needs a new vtable must have a vptr and must not
1494 be a non-virtual primary base (since it would then use the vtable from a
1495 derived class and never become non-primary.) */
1496 #define SET_BINFO_NEW_VTABLE_MARKED(B) \
1497 (BINFO_NEW_VTABLE_MARKED (B) = 1, \
1498 gcc_assert (!BINFO_PRIMARY_P (B) || BINFO_VIRTUAL_P (B)), \
1499 gcc_assert (TYPE_VFIELD (BINFO_TYPE (B))))
1501 /* Nonzero if this binfo is for a dependent base - one that should not
1503 #define BINFO_DEPENDENT_BASE_P(NODE) BINFO_FLAG_3 (NODE)
1505 /* Nonzero if this binfo has lost its primary base binfo (because that
1506 is a nearly-empty virtual base that has been taken by some other
1507 base in the complete hierarchy. */
1508 #define BINFO_LOST_PRIMARY_P(NODE) BINFO_FLAG_4 (NODE)
1510 /* Nonzero if this BINFO is a primary base class. */
1511 #define BINFO_PRIMARY_P(NODE) BINFO_FLAG_5(NODE)
1513 /* Used by various search routines. */
1514 #define IDENTIFIER_MARKED(NODE) TREE_LANG_FLAG_0 (NODE)
1516 /* A VEC(tree_pair_s) of the vcall indices associated with the class
1517 NODE. The PURPOSE of each element is a FUNCTION_DECL for a virtual
1518 function. The VALUE is the index into the virtual table where the
1519 vcall offset for that function is stored, when NODE is a virtual
1521 #define CLASSTYPE_VCALL_INDICES(NODE) \
1522 (LANG_TYPE_CLASS_CHECK (NODE)->vcall_indices)
1524 /* The various vtables for the class NODE. The primary vtable will be
1525 first, followed by the construction vtables and VTT, if any. */
1526 #define CLASSTYPE_VTABLES(NODE) \
1527 (LANG_TYPE_CLASS_CHECK (NODE)->vtables)
1529 /* The std::type_info variable representing this class, or NULL if no
1530 such variable has been created. This field is only set for the
1531 TYPE_MAIN_VARIANT of the class. */
1532 #define CLASSTYPE_TYPEINFO_VAR(NODE) \
1533 (LANG_TYPE_CLASS_CHECK (NODE)->typeinfo_var)
1535 /* Accessor macros for the BINFO_VIRTUALS list. */
1537 /* The number of bytes by which to adjust the `this' pointer when
1538 calling this virtual function. Subtract this value from the this
1539 pointer. Always non-NULL, might be constant zero though. */
1540 #define BV_DELTA(NODE) (TREE_PURPOSE (NODE))
1542 /* If non-NULL, the vtable index at which to find the vcall offset
1543 when calling this virtual function. Add the value at that vtable
1544 index to the this pointer. */
1545 #define BV_VCALL_INDEX(NODE) (TREE_TYPE (NODE))
1547 /* The function to call. */
1548 #define BV_FN(NODE) (TREE_VALUE (NODE))
1551 /* For FUNCTION_TYPE or METHOD_TYPE, a list of the exceptions that
1552 this type can raise. Each TREE_VALUE is a _TYPE. The TREE_VALUE
1553 will be NULL_TREE to indicate a throw specification of `()', or
1554 no exceptions allowed. */
1555 #define TYPE_RAISES_EXCEPTIONS(NODE) TYPE_LANG_SLOT_1 (NODE)
1557 /* For FUNCTION_TYPE or METHOD_TYPE, return 1 iff it is declared `throw()'. */
1558 #define TYPE_NOTHROW_P(NODE) \
1559 (TYPE_RAISES_EXCEPTIONS (NODE) \
1560 && TREE_VALUE (TYPE_RAISES_EXCEPTIONS (NODE)) == NULL_TREE)
1562 /* The binding level associated with the namespace. */
1563 #define NAMESPACE_LEVEL(NODE) \
1564 (LANG_DECL_NS_CHECK (NODE)->level)
1566 /* Flags shared by all forms of DECL_LANG_SPECIFIC.
1568 Some of the flags live here only to make lang_decl_min/fn smaller. Do
1569 not make this struct larger than 32 bits; instead, make sel smaller. */
1571 struct GTY(()) lang_decl_base {
1572 unsigned selector : 16; /* Larger than necessary for faster access. */
1573 ENUM_BITFIELD(languages) language : 4;
1574 unsigned use_template : 2;
1575 unsigned not_really_extern : 1; /* var or fn */
1576 unsigned initialized_in_class : 1; /* var or fn */
1577 unsigned repo_available_p : 1; /* var or fn */
1578 unsigned threadprivate_or_deleted_p : 1; /* var or fn */
1579 unsigned anticipated_p : 1; /* fn or type */
1580 unsigned friend_attr : 1; /* fn or type */
1581 unsigned template_conv_p : 1; /* template only? */
1582 unsigned odr_used : 1; /* var or fn */
1587 /* True for DECL codes which have template info and access. */
1588 #define LANG_DECL_HAS_MIN(NODE) \
1589 (TREE_CODE (NODE) == FUNCTION_DECL \
1590 || TREE_CODE (NODE) == FIELD_DECL \
1591 || TREE_CODE (NODE) == VAR_DECL \
1592 || TREE_CODE (NODE) == CONST_DECL \
1593 || TREE_CODE (NODE) == TYPE_DECL \
1594 || TREE_CODE (NODE) == TEMPLATE_DECL \
1595 || TREE_CODE (NODE) == USING_DECL)
1597 /* DECL_LANG_SPECIFIC for the above codes. */
1599 struct GTY(()) lang_decl_min {
1600 struct lang_decl_base base;
1602 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
1604 In a FUNCTION_DECL for which DECL_THUNK_P does not hold,
1605 VAR_DECL, TYPE_DECL, or TEMPLATE_DECL, this is
1606 DECL_TEMPLATE_INFO. */
1609 union lang_decl_u2 {
1610 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
1611 THUNK_VIRTUAL_OFFSET.
1612 Otherwise this is DECL_ACCESS. */
1613 tree GTY ((tag ("0"))) access;
1615 /* For VAR_DECL in function, this is DECL_DISCRIMINATOR. */
1616 int GTY ((tag ("1"))) discriminator;
1617 } GTY ((desc ("%0.u.base.u2sel"))) u2;
1620 /* Additional DECL_LANG_SPECIFIC information for functions. */
1622 struct GTY(()) lang_decl_fn {
1623 struct lang_decl_min min;
1625 /* In an overloaded operator, this is the value of
1626 DECL_OVERLOADED_OPERATOR_P. */
1627 ENUM_BITFIELD (tree_code) operator_code : 16;
1629 unsigned global_ctor_p : 1;
1630 unsigned global_dtor_p : 1;
1631 unsigned constructor_attr : 1;
1632 unsigned destructor_attr : 1;
1633 unsigned assignment_operator_p : 1;
1634 unsigned static_function : 1;
1635 unsigned pure_virtual : 1;
1636 unsigned defaulted_p : 1;
1638 unsigned has_in_charge_parm_p : 1;
1639 unsigned has_vtt_parm_p : 1;
1640 unsigned pending_inline_p : 1;
1641 unsigned nonconverting : 1;
1642 unsigned thunk_p : 1;
1643 unsigned this_thunk_p : 1;
1644 unsigned hidden_friend_p : 1;
1647 /* For a non-thunk function decl, this is a tree list of
1648 friendly classes. For a thunk function decl, it is the
1649 thunked to function decl. */
1650 tree befriending_classes;
1652 /* For a non-virtual FUNCTION_DECL, this is
1653 DECL_FRIEND_CONTEXT. For a virtual FUNCTION_DECL for which
1654 DECL_THIS_THUNK_P does not hold, this is DECL_THUNKS. Both
1655 this pointer and result pointer adjusting thunks are
1656 chained here. This pointer thunks to return pointer thunks
1657 will be chained on the return pointer thunk. */
1662 /* In a non-thunk FUNCTION_DECL or TEMPLATE_DECL, this is
1663 DECL_CLONED_FUNCTION. */
1664 tree GTY ((tag ("0"))) cloned_function;
1666 /* In a FUNCTION_DECL for which THUNK_P holds this is the
1667 THUNK_FIXED_OFFSET. */
1668 HOST_WIDE_INT GTY ((tag ("1"))) fixed_offset;
1669 } GTY ((desc ("%1.thunk_p"))) u5;
1673 struct cp_token_cache * GTY ((tag ("1"))) pending_inline_info;
1674 struct language_function * GTY ((tag ("0")))
1675 saved_language_function;
1676 } GTY ((desc ("%1.pending_inline_p"))) u;
1680 /* DECL_LANG_SPECIFIC for namespaces. */
1682 struct GTY(()) lang_decl_ns {
1683 struct lang_decl_base base;
1684 struct cp_binding_level *level;
1687 /* DECL_LANG_SPECIFIC for parameters. */
1689 struct GTY(()) lang_decl_parm {
1690 struct lang_decl_base base;
1694 /* DECL_LANG_SPECIFIC for all types. It would be nice to just make this a
1695 union rather than a struct containing a union as its only field, but
1696 tree.h declares it as a struct. */
1698 struct GTY(()) lang_decl {
1699 union GTY((desc ("%h.base.selector"))) lang_decl_u {
1700 struct lang_decl_base GTY ((default)) base;
1701 struct lang_decl_min GTY((tag ("0"))) min;
1702 struct lang_decl_fn GTY ((tag ("1"))) fn;
1703 struct lang_decl_ns GTY((tag ("2"))) ns;
1704 struct lang_decl_parm GTY((tag ("3"))) parm;
1708 /* Looks through a template (if present) to find what it declares. */
1709 #define STRIP_TEMPLATE(NODE) \
1710 (TREE_CODE (NODE) == TEMPLATE_DECL ? DECL_TEMPLATE_RESULT (NODE) : NODE)
1712 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1714 #define LANG_DECL_MIN_CHECK(NODE) __extension__ \
1715 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
1716 if (!LANG_DECL_HAS_MIN (NODE)) \
1717 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1720 /* We want to be able to check DECL_CONSTRUCTOR_P and such on a function
1721 template, not just on a FUNCTION_DECL. So when looking for things in
1722 lang_decl_fn, look down through a TEMPLATE_DECL into its result. */
1723 #define LANG_DECL_FN_CHECK(NODE) __extension__ \
1724 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE)); \
1725 if (!DECL_DECLARES_FUNCTION_P (NODE) || lt->u.base.selector != 1) \
1726 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1729 #define LANG_DECL_NS_CHECK(NODE) __extension__ \
1730 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
1731 if (TREE_CODE (NODE) != NAMESPACE_DECL || lt->u.base.selector != 2) \
1732 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1735 #define LANG_DECL_PARM_CHECK(NODE) __extension__ \
1736 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
1737 if (TREE_CODE (NODE) != PARM_DECL) \
1738 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1741 #define LANG_DECL_U2_CHECK(NODE, TF) __extension__ \
1742 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
1743 if (lt->u.base.u2sel != TF) \
1744 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1749 #define LANG_DECL_MIN_CHECK(NODE) \
1750 (&DECL_LANG_SPECIFIC (NODE)->u.min)
1752 #define LANG_DECL_FN_CHECK(NODE) \
1753 (&DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE))->u.fn)
1755 #define LANG_DECL_NS_CHECK(NODE) \
1756 (&DECL_LANG_SPECIFIC (NODE)->u.ns)
1758 #define LANG_DECL_PARM_CHECK(NODE) \
1759 (&DECL_LANG_SPECIFIC (NODE)->u.parm)
1761 #define LANG_DECL_U2_CHECK(NODE, TF) \
1762 (&DECL_LANG_SPECIFIC (NODE)->u.min.u2)
1764 #endif /* ENABLE_TREE_CHECKING */
1766 /* For a FUNCTION_DECL or a VAR_DECL, the language linkage for the
1767 declaration. Some entities (like a member function in a local
1768 class, or a local variable) do not have linkage at all, and this
1769 macro should not be used in those cases.
1771 Implementation note: A FUNCTION_DECL without DECL_LANG_SPECIFIC was
1772 created by language-independent code, and has C linkage. Most
1773 VAR_DECLs have C++ linkage, and do not have DECL_LANG_SPECIFIC, but
1774 we do create DECL_LANG_SPECIFIC for variables with non-C++ linkage. */
1775 #define DECL_LANGUAGE(NODE) \
1776 (DECL_LANG_SPECIFIC (NODE) \
1777 ? DECL_LANG_SPECIFIC (NODE)->u.base.language \
1778 : (TREE_CODE (NODE) == FUNCTION_DECL \
1779 ? lang_c : lang_cplusplus))
1781 /* Set the language linkage for NODE to LANGUAGE. */
1782 #define SET_DECL_LANGUAGE(NODE, LANGUAGE) \
1783 (DECL_LANG_SPECIFIC (NODE)->u.base.language = (LANGUAGE))
1785 /* For FUNCTION_DECLs: nonzero means that this function is a constructor. */
1786 #define DECL_CONSTRUCTOR_P(NODE) \
1787 (LANG_DECL_FN_CHECK (NODE)->constructor_attr)
1789 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a complete
1791 #define DECL_COMPLETE_CONSTRUCTOR_P(NODE) \
1792 (DECL_CONSTRUCTOR_P (NODE) \
1793 && DECL_NAME (NODE) == complete_ctor_identifier)
1795 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a base
1797 #define DECL_BASE_CONSTRUCTOR_P(NODE) \
1798 (DECL_CONSTRUCTOR_P (NODE) \
1799 && DECL_NAME (NODE) == base_ctor_identifier)
1801 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor, but not either the
1802 specialized in-charge constructor or the specialized not-in-charge
1804 #define DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P(NODE) \
1805 (DECL_DECLARES_FUNCTION_P (NODE) && DECL_CONSTRUCTOR_P (NODE) \
1806 && !DECL_CLONED_FUNCTION_P (NODE))
1808 /* Nonzero if NODE (a FUNCTION_DECL) is a copy constructor. */
1809 #define DECL_COPY_CONSTRUCTOR_P(NODE) \
1810 (DECL_CONSTRUCTOR_P (NODE) && copy_fn_p (NODE) > 0)
1812 /* Nonzero if NODE (a FUNCTION_DECL) is a move constructor. */
1813 #define DECL_MOVE_CONSTRUCTOR_P(NODE) \
1814 (DECL_CONSTRUCTOR_P (NODE) && move_fn_p (NODE))
1816 /* Nonzero if NODE is a destructor. */
1817 #define DECL_DESTRUCTOR_P(NODE) \
1818 (LANG_DECL_FN_CHECK (NODE)->destructor_attr)
1820 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor, but not the
1821 specialized in-charge constructor, in-charge deleting constructor,
1822 or the base destructor. */
1823 #define DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P(NODE) \
1824 (DECL_DECLARES_FUNCTION_P (NODE) && DECL_DESTRUCTOR_P (NODE) \
1825 && !DECL_CLONED_FUNCTION_P (NODE))
1827 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
1829 #define DECL_COMPLETE_DESTRUCTOR_P(NODE) \
1830 (DECL_DESTRUCTOR_P (NODE) \
1831 && DECL_NAME (NODE) == complete_dtor_identifier)
1833 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a base
1835 #define DECL_BASE_DESTRUCTOR_P(NODE) \
1836 (DECL_DESTRUCTOR_P (NODE) \
1837 && DECL_NAME (NODE) == base_dtor_identifier)
1839 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
1840 object that deletes the object after it has been destroyed. */
1841 #define DECL_DELETING_DESTRUCTOR_P(NODE) \
1842 (DECL_DESTRUCTOR_P (NODE) \
1843 && DECL_NAME (NODE) == deleting_dtor_identifier)
1845 /* Nonzero if NODE (a FUNCTION_DECL) is a cloned constructor or
1847 #define DECL_CLONED_FUNCTION_P(NODE) (!!decl_cloned_function_p (NODE, true))
1849 /* If DECL_CLONED_FUNCTION_P holds, this is the function that was
1851 #define DECL_CLONED_FUNCTION(NODE) (*decl_cloned_function_p (NODE, false))
1853 /* Perform an action for each clone of FN, if FN is a function with
1854 clones. This macro should be used like:
1856 FOR_EACH_CLONE (clone, fn)
1860 #define FOR_EACH_CLONE(CLONE, FN) \
1861 if (TREE_CODE (FN) == FUNCTION_DECL \
1862 && (DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (FN) \
1863 || DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (FN))) \
1864 for (CLONE = TREE_CHAIN (FN); \
1865 CLONE && DECL_CLONED_FUNCTION_P (CLONE); \
1866 CLONE = TREE_CHAIN (CLONE))
1868 /* Nonzero if NODE has DECL_DISCRIMINATOR and not DECL_ACCESS. */
1869 #define DECL_DISCRIMINATOR_P(NODE) \
1870 (TREE_CODE (NODE) == VAR_DECL \
1871 && DECL_FUNCTION_SCOPE_P (NODE))
1873 /* Discriminator for name mangling. */
1874 #define DECL_DISCRIMINATOR(NODE) (LANG_DECL_U2_CHECK (NODE, 1)->discriminator)
1876 /* The index of a user-declared parameter in its function, starting at 1.
1877 All artificial parameters will have index 0. */
1878 #define DECL_PARM_INDEX(NODE) \
1879 (LANG_DECL_PARM_CHECK (NODE)->index)
1881 /* Nonzero if the VTT parm has been added to NODE. */
1882 #define DECL_HAS_VTT_PARM_P(NODE) \
1883 (LANG_DECL_FN_CHECK (NODE)->has_vtt_parm_p)
1885 /* Nonzero if NODE is a FUNCTION_DECL for which a VTT parameter is
1887 #define DECL_NEEDS_VTT_PARM_P(NODE) \
1888 (CLASSTYPE_VBASECLASSES (DECL_CONTEXT (NODE)) \
1889 && (DECL_BASE_CONSTRUCTOR_P (NODE) \
1890 || DECL_BASE_DESTRUCTOR_P (NODE)))
1892 /* Nonzero if NODE is a user-defined conversion operator. */
1893 #define DECL_CONV_FN_P(NODE) \
1894 (DECL_NAME (NODE) && IDENTIFIER_TYPENAME_P (DECL_NAME (NODE)))
1896 /* If FN is a conversion operator, the type to which it converts.
1897 Otherwise, NULL_TREE. */
1898 #define DECL_CONV_FN_TYPE(FN) \
1899 (DECL_CONV_FN_P (FN) ? TREE_TYPE (DECL_NAME (FN)) : NULL_TREE)
1901 /* Nonzero if NODE, which is a TEMPLATE_DECL, is a template
1902 conversion operator to a type dependent on the innermost template
1904 #define DECL_TEMPLATE_CONV_FN_P(NODE) \
1905 (DECL_LANG_SPECIFIC (TEMPLATE_DECL_CHECK (NODE))->u.base.template_conv_p)
1907 /* Set the overloaded operator code for NODE to CODE. */
1908 #define SET_OVERLOADED_OPERATOR_CODE(NODE, CODE) \
1909 (LANG_DECL_FN_CHECK (NODE)->operator_code = (CODE))
1911 /* If NODE is an overloaded operator, then this returns the TREE_CODE
1912 associated with the overloaded operator.
1913 DECL_ASSIGNMENT_OPERATOR_P must also be checked to determine
1914 whether or not NODE is an assignment operator. If NODE is not an
1915 overloaded operator, ERROR_MARK is returned. Since the numerical
1916 value of ERROR_MARK is zero, this macro can be used as a predicate
1917 to test whether or not NODE is an overloaded operator. */
1918 #define DECL_OVERLOADED_OPERATOR_P(NODE) \
1919 (IDENTIFIER_OPNAME_P (DECL_NAME (NODE)) \
1920 ? LANG_DECL_FN_CHECK (NODE)->operator_code : ERROR_MARK)
1922 /* Nonzero if NODE is an assignment operator (including += and such). */
1923 #define DECL_ASSIGNMENT_OPERATOR_P(NODE) \
1924 (LANG_DECL_FN_CHECK (NODE)->assignment_operator_p)
1926 /* For FUNCTION_DECLs: nonzero means that this function is a
1927 constructor or a destructor with an extra in-charge parameter to
1928 control whether or not virtual bases are constructed. */
1929 #define DECL_HAS_IN_CHARGE_PARM_P(NODE) \
1930 (LANG_DECL_FN_CHECK (NODE)->has_in_charge_parm_p)
1932 /* Nonzero if DECL is a declaration of __builtin_constant_p. */
1933 #define DECL_IS_BUILTIN_CONSTANT_P(NODE) \
1934 (TREE_CODE (NODE) == FUNCTION_DECL \
1935 && DECL_BUILT_IN_CLASS (NODE) == BUILT_IN_NORMAL \
1936 && DECL_FUNCTION_CODE (NODE) == BUILT_IN_CONSTANT_P)
1938 /* Nonzero for _DECL means that this decl appears in (or will appear
1939 in) as a member in a RECORD_TYPE or UNION_TYPE node. It is also for
1940 detecting circularity in case members are multiply defined. In the
1941 case of a VAR_DECL, it is also used to determine how program storage
1942 should be allocated. */
1943 #define DECL_IN_AGGR_P(NODE) (DECL_LANG_FLAG_3 (NODE))
1945 /* Nonzero for a VAR_DECL means that the variable's initialization (if
1946 any) has been processed. (In general, DECL_INITIALIZED_P is
1947 !DECL_EXTERN, but static data members may be initialized even if
1949 #define DECL_INITIALIZED_P(NODE) \
1950 (TREE_LANG_FLAG_1 (VAR_DECL_CHECK (NODE)))
1952 /* Nonzero for a VAR_DECL iff an explicit initializer was provided. */
1953 #define DECL_NONTRIVIALLY_INITIALIZED_P(NODE) \
1954 (TREE_LANG_FLAG_3 (VAR_DECL_CHECK (NODE)))
1956 /* Nonzero for a VAR_DECL that was initialized with a
1957 constant-expression. */
1958 #define DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P(NODE) \
1959 (TREE_LANG_FLAG_2 (VAR_DECL_CHECK (NODE)))
1961 /* Nonzero for a VAR_DECL that can be used in an integral constant
1966 An integral constant-expression can only involve ... const
1967 variables of static or enumeration types initialized with
1968 constant expressions ...
1970 The standard does not require that the expression be non-volatile.
1971 G++ implements the proposed correction in DR 457. */
1972 #define DECL_INTEGRAL_CONSTANT_VAR_P(NODE) \
1973 (TREE_CODE (NODE) == VAR_DECL \
1974 && CP_TYPE_CONST_NON_VOLATILE_P (TREE_TYPE (NODE)) \
1975 && INTEGRAL_OR_ENUMERATION_TYPE_P (TREE_TYPE (NODE)) \
1976 && DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (NODE))
1978 /* Nonzero if the DECL was initialized in the class definition itself,
1979 rather than outside the class. This is used for both static member
1980 VAR_DECLS, and FUNCTION_DECLS that are defined in the class. */
1981 #define DECL_INITIALIZED_IN_CLASS_P(DECL) \
1982 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \
1983 ->u.base.initialized_in_class)
1985 /* Nonzero if the DECL is used in the sense of 3.2 [basic.def.odr].
1986 Only available for decls with DECL_LANG_SPECIFIC. */
1987 #define DECL_ODR_USED(DECL) \
1988 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \
1991 /* Nonzero for DECL means that this decl is just a friend declaration,
1992 and should not be added to the list of members for this class. */
1993 #define DECL_FRIEND_P(NODE) (DECL_LANG_SPECIFIC (NODE)->u.base.friend_attr)
1995 /* A TREE_LIST of the types which have befriended this FUNCTION_DECL. */
1996 #define DECL_BEFRIENDING_CLASSES(NODE) \
1997 (LANG_DECL_FN_CHECK (NODE)->befriending_classes)
1999 /* Nonzero for FUNCTION_DECL means that this decl is a static
2001 #define DECL_STATIC_FUNCTION_P(NODE) \
2002 (LANG_DECL_FN_CHECK (NODE)->static_function)
2004 /* Nonzero for FUNCTION_DECL means that this decl is a non-static
2006 #define DECL_NONSTATIC_MEMBER_FUNCTION_P(NODE) \
2007 (TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE)
2009 /* Nonzero for FUNCTION_DECL means that this decl is a member function
2010 (static or non-static). */
2011 #define DECL_FUNCTION_MEMBER_P(NODE) \
2012 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) || DECL_STATIC_FUNCTION_P (NODE))
2014 /* Nonzero for FUNCTION_DECL means that this member function
2015 has `this' as const X *const. */
2016 #define DECL_CONST_MEMFUNC_P(NODE) \
2017 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
2018 && CP_TYPE_CONST_P (TREE_TYPE (TREE_VALUE \
2019 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
2021 /* Nonzero for FUNCTION_DECL means that this member function
2022 has `this' as volatile X *const. */
2023 #define DECL_VOLATILE_MEMFUNC_P(NODE) \
2024 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
2025 && CP_TYPE_VOLATILE_P (TREE_TYPE (TREE_VALUE \
2026 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
2028 /* Nonzero for a DECL means that this member is a non-static member. */
2029 #define DECL_NONSTATIC_MEMBER_P(NODE) \
2030 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
2031 || TREE_CODE (NODE) == FIELD_DECL)
2033 /* Nonzero for _DECL means that this member object type
2035 #define DECL_MUTABLE_P(NODE) (DECL_LANG_FLAG_0 (NODE))
2037 /* Nonzero for _DECL means that this constructor or conversion function is
2039 #define DECL_NONCONVERTING_P(NODE) \
2040 (LANG_DECL_FN_CHECK (NODE)->nonconverting)
2042 /* Nonzero for FUNCTION_DECL means that this member function is a pure
2043 virtual function. */
2044 #define DECL_PURE_VIRTUAL_P(NODE) \
2045 (LANG_DECL_FN_CHECK (NODE)->pure_virtual)
2047 /* True (in a FUNCTION_DECL) if NODE is a virtual function that is an
2048 invalid overrider for a function from a base class. Once we have
2049 complained about an invalid overrider we avoid complaining about it
2051 #define DECL_INVALID_OVERRIDER_P(NODE) \
2052 (DECL_LANG_FLAG_4 (NODE))
2054 /* The thunks associated with NODE, a FUNCTION_DECL. */
2055 #define DECL_THUNKS(NODE) \
2056 (LANG_DECL_FN_CHECK (NODE)->context)
2058 /* Nonzero if NODE is a thunk, rather than an ordinary function. */
2059 #define DECL_THUNK_P(NODE) \
2060 (TREE_CODE (NODE) == FUNCTION_DECL \
2061 && DECL_LANG_SPECIFIC (NODE) \
2062 && LANG_DECL_FN_CHECK (NODE)->thunk_p)
2064 /* Set DECL_THUNK_P for node. */
2065 #define SET_DECL_THUNK_P(NODE, THIS_ADJUSTING) \
2066 (LANG_DECL_FN_CHECK (NODE)->thunk_p = 1, \
2067 LANG_DECL_FN_CHECK (NODE)->this_thunk_p = (THIS_ADJUSTING))
2069 /* Nonzero if NODE is a this pointer adjusting thunk. */
2070 #define DECL_THIS_THUNK_P(NODE) \
2071 (DECL_THUNK_P (NODE) && LANG_DECL_FN_CHECK (NODE)->this_thunk_p)
2073 /* Nonzero if NODE is a result pointer adjusting thunk. */
2074 #define DECL_RESULT_THUNK_P(NODE) \
2075 (DECL_THUNK_P (NODE) && !LANG_DECL_FN_CHECK (NODE)->this_thunk_p)
2077 /* Nonzero if NODE is a FUNCTION_DECL, but not a thunk. */
2078 #define DECL_NON_THUNK_FUNCTION_P(NODE) \
2079 (TREE_CODE (NODE) == FUNCTION_DECL && !DECL_THUNK_P (NODE))
2081 /* Nonzero if NODE is `extern "C"'. */
2082 #define DECL_EXTERN_C_P(NODE) \
2083 (DECL_LANGUAGE (NODE) == lang_c)
2085 /* Nonzero if NODE is an `extern "C"' function. */
2086 #define DECL_EXTERN_C_FUNCTION_P(NODE) \
2087 (DECL_NON_THUNK_FUNCTION_P (NODE) && DECL_EXTERN_C_P (NODE))
2089 /* True iff DECL is an entity with vague linkage whose definition is
2090 available in this translation unit. */
2091 #define DECL_REPO_AVAILABLE_P(NODE) \
2092 (DECL_LANG_SPECIFIC (NODE)->u.base.repo_available_p)
2094 /* Nonzero if this DECL is the __PRETTY_FUNCTION__ variable in a
2095 template function. */
2096 #define DECL_PRETTY_FUNCTION_P(NODE) \
2097 (TREE_LANG_FLAG_0 (VAR_DECL_CHECK (NODE)))
2099 /* The _TYPE context in which this _DECL appears. This field holds the
2100 class where a virtual function instance is actually defined. */
2101 #define DECL_CLASS_CONTEXT(NODE) \
2102 (DECL_CLASS_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : NULL_TREE)
2104 /* For a non-member friend function, the class (if any) in which this
2105 friend was defined. For example, given:
2107 struct S { friend void f (); };
2109 the DECL_FRIEND_CONTEXT for `f' will be `S'. */
2110 #define DECL_FRIEND_CONTEXT(NODE) \
2111 ((DECL_DECLARES_FUNCTION_P (NODE) \
2112 && DECL_FRIEND_P (NODE) && !DECL_FUNCTION_MEMBER_P (NODE)) \
2113 ? LANG_DECL_FN_CHECK (NODE)->context \
2116 /* Set the DECL_FRIEND_CONTEXT for NODE to CONTEXT. */
2117 #define SET_DECL_FRIEND_CONTEXT(NODE, CONTEXT) \
2118 (LANG_DECL_FN_CHECK (NODE)->context = (CONTEXT))
2120 /* NULL_TREE in DECL_CONTEXT represents the global namespace. */
2121 #define CP_DECL_CONTEXT(NODE) \
2122 (DECL_CONTEXT (NODE) ? DECL_CONTEXT (NODE) : global_namespace)
2123 #define CP_TYPE_CONTEXT(NODE) \
2124 (TYPE_CONTEXT (NODE) ? TYPE_CONTEXT (NODE) : global_namespace)
2125 #define FROB_CONTEXT(NODE) ((NODE) == global_namespace ? NULL_TREE : (NODE))
2127 /* 1 iff NODE has namespace scope, including the global namespace. */
2128 #define DECL_NAMESPACE_SCOPE_P(NODE) \
2129 (!DECL_TEMPLATE_PARM_P (NODE) \
2130 && TREE_CODE (CP_DECL_CONTEXT (NODE)) == NAMESPACE_DECL)
2132 #define TYPE_NAMESPACE_SCOPE_P(NODE) \
2133 (TREE_CODE (CP_TYPE_CONTEXT (NODE)) == NAMESPACE_DECL)
2135 /* 1 iff NODE is a class member. */
2136 #define DECL_CLASS_SCOPE_P(NODE) \
2137 (DECL_CONTEXT (NODE) && TYPE_P (DECL_CONTEXT (NODE)))
2139 #define TYPE_CLASS_SCOPE_P(NODE) \
2140 (TYPE_CONTEXT (NODE) && TYPE_P (TYPE_CONTEXT (NODE)))
2142 /* 1 iff NODE is function-local. */
2143 #define DECL_FUNCTION_SCOPE_P(NODE) \
2144 (DECL_CONTEXT (NODE) \
2145 && TREE_CODE (DECL_CONTEXT (NODE)) == FUNCTION_DECL)
2147 /* 1 iff VAR_DECL node NODE is a type-info decl. This flag is set for
2148 both the primary typeinfo object and the associated NTBS name. */
2149 #define DECL_TINFO_P(NODE) TREE_LANG_FLAG_4 (VAR_DECL_CHECK (NODE))
2151 /* 1 iff VAR_DECL node NODE is virtual table or VTT. */
2152 #define DECL_VTABLE_OR_VTT_P(NODE) TREE_LANG_FLAG_5 (VAR_DECL_CHECK (NODE))
2154 /* Returns 1 iff VAR_DECL is a construction virtual table.
2155 DECL_VTABLE_OR_VTT_P will be true in this case and must be checked
2156 before using this macro. */
2157 #define DECL_CONSTRUCTION_VTABLE_P(NODE) \
2158 TREE_LANG_FLAG_6 (VAR_DECL_CHECK (NODE))
2160 /* 1 iff NODE is function-local, but for types. */
2161 #define LOCAL_CLASS_P(NODE) \
2162 (decl_function_context (TYPE_MAIN_DECL (NODE)) != NULL_TREE)
2164 /* For a NAMESPACE_DECL: the list of using namespace directives
2165 The PURPOSE is the used namespace, the value is the namespace
2166 that is the common ancestor. */
2167 #define DECL_NAMESPACE_USING(NODE) DECL_VINDEX (NAMESPACE_DECL_CHECK (NODE))
2169 /* In a NAMESPACE_DECL, the DECL_INITIAL is used to record all users
2170 of a namespace, to record the transitive closure of using namespace. */
2171 #define DECL_NAMESPACE_USERS(NODE) DECL_INITIAL (NAMESPACE_DECL_CHECK (NODE))
2173 /* In a NAMESPACE_DECL, the list of namespaces which have associated
2174 themselves with this one. */
2175 #define DECL_NAMESPACE_ASSOCIATIONS(NODE) \
2176 (NAMESPACE_DECL_CHECK (NODE)->decl_non_common.saved_tree)
2178 /* In a NAMESPACE_DECL, points to the original namespace if this is
2179 a namespace alias. */
2180 #define DECL_NAMESPACE_ALIAS(NODE) \
2181 DECL_ABSTRACT_ORIGIN (NAMESPACE_DECL_CHECK (NODE))
2182 #define ORIGINAL_NAMESPACE(NODE) \
2183 (DECL_NAMESPACE_ALIAS (NODE) ? DECL_NAMESPACE_ALIAS (NODE) : (NODE))
2185 /* Nonzero if NODE is the std namespace. */
2186 #define DECL_NAMESPACE_STD_P(NODE) \
2187 (TREE_CODE (NODE) == NAMESPACE_DECL \
2188 && CP_DECL_CONTEXT (NODE) == global_namespace \
2189 && DECL_NAME (NODE) == std_identifier)
2191 /* In a TREE_LIST concatenating using directives, indicate indirect
2193 #define TREE_INDIRECT_USING(NODE) (TREE_LIST_CHECK (NODE)->base.lang_flag_0)
2195 /* In a TREE_LIST in an attribute list, indicates that the attribute
2196 must be applied at instantiation time. */
2197 #define ATTR_IS_DEPENDENT(NODE) (TREE_LIST_CHECK (NODE)->base.lang_flag_0)
2199 extern tree decl_shadowed_for_var_lookup (tree);
2200 extern void decl_shadowed_for_var_insert (tree, tree);
2202 /* Non zero if this is a using decl for a dependent scope. */
2203 #define DECL_DEPENDENT_P(NODE) DECL_LANG_FLAG_0 (USING_DECL_CHECK (NODE))
2205 /* The scope named in a using decl. */
2206 #define USING_DECL_SCOPE(NODE) TREE_TYPE (USING_DECL_CHECK (NODE))
2208 /* The decls named by a using decl. */
2209 #define USING_DECL_DECLS(NODE) DECL_INITIAL (USING_DECL_CHECK (NODE))
2211 /* In a VAR_DECL, true if we have a shadowed local variable
2212 in the shadowed var table for this VAR_DECL. */
2213 #define DECL_HAS_SHADOWED_FOR_VAR_P(NODE) \
2214 (VAR_DECL_CHECK (NODE)->decl_with_vis.shadowed_for_var_p)
2216 /* In a VAR_DECL for a variable declared in a for statement,
2217 this is the shadowed (local) variable. */
2218 #define DECL_SHADOWED_FOR_VAR(NODE) \
2219 (DECL_HAS_SHADOWED_FOR_VAR_P(NODE) ? decl_shadowed_for_var_lookup (NODE) : NULL)
2221 #define SET_DECL_SHADOWED_FOR_VAR(NODE, VAL) \
2222 (decl_shadowed_for_var_insert (NODE, VAL))
2224 /* In a FUNCTION_DECL, this is nonzero if this function was defined in
2225 the class definition. We have saved away the text of the function,
2226 but have not yet processed it. */
2227 #define DECL_PENDING_INLINE_P(NODE) \
2228 (LANG_DECL_FN_CHECK (NODE)->pending_inline_p)
2230 /* If DECL_PENDING_INLINE_P holds, this is the saved text of the
2232 #define DECL_PENDING_INLINE_INFO(NODE) \
2233 (LANG_DECL_FN_CHECK (NODE)->u.pending_inline_info)
2235 /* For a class type: if this structure has many fields, we'll sort them
2236 and put them into a TREE_VEC. */
2237 #define CLASSTYPE_SORTED_FIELDS(NODE) \
2238 (LANG_TYPE_CLASS_CHECK (NODE)->sorted_fields)
2240 /* If non-NULL for a VAR_DECL, FUNCTION_DECL, TYPE_DECL or
2241 TEMPLATE_DECL, the entity is either a template specialization (if
2242 DECL_USE_TEMPLATE is nonzero) or the abstract instance of the
2245 In either case, DECL_TEMPLATE_INFO is a TREE_LIST, whose
2246 TREE_PURPOSE is the TEMPLATE_DECL of which this entity is a
2247 specialization or abstract instance. The TREE_VALUE is the
2248 template arguments used to specialize the template.
2252 template <typename T> struct S { friend void f(T) {} };
2254 In this case, S<int>::f is, from the point of view of the compiler,
2255 an instantiation of a template -- but, from the point of view of
2256 the language, each instantiation of S results in a wholly unrelated
2257 global function f. In this case, DECL_TEMPLATE_INFO for S<int>::f
2258 will be non-NULL, but DECL_USE_TEMPLATE will be zero. */
2259 #define DECL_TEMPLATE_INFO(NODE) \
2260 (DECL_LANG_SPECIFIC (VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK (NODE)) \
2261 ->u.min.template_info)
2263 /* For a VAR_DECL, indicates that the variable is actually a
2264 non-static data member of anonymous union that has been promoted to
2266 #define DECL_ANON_UNION_VAR_P(NODE) \
2267 (DECL_LANG_FLAG_4 (VAR_DECL_CHECK (NODE)))
2269 /* Template information for a RECORD_TYPE or UNION_TYPE. */
2270 #define CLASSTYPE_TEMPLATE_INFO(NODE) \
2271 (LANG_TYPE_CLASS_CHECK (RECORD_OR_UNION_CHECK (NODE))->template_info)
2273 /* Template information for an ENUMERAL_TYPE. Although an enumeration may
2274 not be a primary template, it may be declared within the scope of a
2275 primary template and the enumeration constants may depend on
2276 non-type template parameters. */
2277 #define ENUM_TEMPLATE_INFO(NODE) \
2278 (TYPE_LANG_SLOT_1 (ENUMERAL_TYPE_CHECK (NODE)))
2280 /* Template information for a template template parameter. */
2281 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO(NODE) \
2282 (LANG_TYPE_CLASS_CHECK (BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK (NODE)) \
2285 /* Template information for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2286 #define TYPE_TEMPLATE_INFO(NODE) \
2287 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2288 ? ENUM_TEMPLATE_INFO (NODE) : \
2289 (TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM \
2290 ? TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO (NODE) : \
2291 (TYPE_LANG_SPECIFIC (NODE) \
2292 ? CLASSTYPE_TEMPLATE_INFO (NODE) \
2295 /* Set the template information for an ENUMERAL_, RECORD_, or
2296 UNION_TYPE to VAL. */
2297 #define SET_TYPE_TEMPLATE_INFO(NODE, VAL) \
2298 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2299 ? (ENUM_TEMPLATE_INFO (NODE) = (VAL)) \
2300 : (CLASSTYPE_TEMPLATE_INFO (NODE) = (VAL)))
2302 #define TI_TEMPLATE(NODE) (TREE_PURPOSE (NODE))
2303 #define TI_ARGS(NODE) (TREE_VALUE (NODE))
2304 #define TI_PENDING_TEMPLATE_FLAG(NODE) TREE_LANG_FLAG_1 (NODE)
2305 /* The list of typedefs - used in the template - that need
2306 access checking at template instantiation time. */
2307 #define TI_TYPEDEFS_NEEDING_ACCESS_CHECKING(NODE) (TREE_CHAIN (NODE))
2309 /* We use TREE_VECs to hold template arguments. If there is only one
2310 level of template arguments, then the TREE_VEC contains the
2311 arguments directly. If there is more than one level of template
2312 arguments, then each entry in the TREE_VEC is itself a TREE_VEC,
2313 containing the template arguments for a single level. The first
2314 entry in the outer TREE_VEC is the outermost level of template
2315 parameters; the last is the innermost.
2317 It is incorrect to ever form a template argument vector containing
2318 only one level of arguments, but which is a TREE_VEC containing as
2319 its only entry the TREE_VEC for that level. */
2321 /* Nonzero if the template arguments is actually a vector of vectors,
2322 rather than just a vector. */
2323 #define TMPL_ARGS_HAVE_MULTIPLE_LEVELS(NODE) \
2324 (NODE && TREE_VEC_LENGTH (NODE) && TREE_VEC_ELT (NODE, 0) \
2325 && TREE_CODE (TREE_VEC_ELT (NODE, 0)) == TREE_VEC)
2327 /* The depth of a template argument vector. When called directly by
2328 the parser, we use a TREE_LIST rather than a TREE_VEC to represent
2329 template arguments. In fact, we may even see NULL_TREE if there
2330 are no template arguments. In both of those cases, there is only
2331 one level of template arguments. */
2332 #define TMPL_ARGS_DEPTH(NODE) \
2333 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (NODE) ? TREE_VEC_LENGTH (NODE) : 1)
2335 /* The LEVELth level of the template ARGS. The outermost level of
2336 args is level 1, not level 0. */
2337 #define TMPL_ARGS_LEVEL(ARGS, LEVEL) \
2338 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (ARGS) \
2339 ? TREE_VEC_ELT (ARGS, (LEVEL) - 1) : (ARGS))
2341 /* Set the LEVELth level of the template ARGS to VAL. This macro does
2342 not work with single-level argument vectors. */
2343 #define SET_TMPL_ARGS_LEVEL(ARGS, LEVEL, VAL) \
2344 (TREE_VEC_ELT (ARGS, (LEVEL) - 1) = (VAL))
2346 /* Accesses the IDXth parameter in the LEVELth level of the ARGS. */
2347 #define TMPL_ARG(ARGS, LEVEL, IDX) \
2348 (TREE_VEC_ELT (TMPL_ARGS_LEVEL (ARGS, LEVEL), IDX))
2350 /* Given a single level of template arguments in NODE, return the
2351 number of arguments. */
2352 #define NUM_TMPL_ARGS(NODE) \
2353 (TREE_VEC_LENGTH (NODE))
2355 /* Returns the innermost level of template arguments in ARGS. */
2356 #define INNERMOST_TEMPLATE_ARGS(NODE) \
2357 (get_innermost_template_args ((NODE), 1))
2359 /* The number of levels of template parameters given by NODE. */
2360 #define TMPL_PARMS_DEPTH(NODE) \
2361 ((HOST_WIDE_INT) TREE_INT_CST_LOW (TREE_PURPOSE (NODE)))
2363 /* The TEMPLATE_DECL instantiated or specialized by NODE. This
2364 TEMPLATE_DECL will be the immediate parent, not the most general
2365 template. For example, in:
2367 template <class T> struct S { template <class U> void f(U); }
2369 the FUNCTION_DECL for S<int>::f<double> will have, as its
2370 DECL_TI_TEMPLATE, `template <class U> S<int>::f<U>'.
2372 As a special case, for a member friend template of a template
2373 class, this value will not be a TEMPLATE_DECL, but rather an
2374 IDENTIFIER_NODE or OVERLOAD indicating the name of the template and
2375 any explicit template arguments provided. For example, in:
2377 template <class T> struct S { friend void f<int>(int, double); }
2379 the DECL_TI_TEMPLATE will be an IDENTIFIER_NODE for `f' and the
2380 DECL_TI_ARGS will be {int}. */
2381 #define DECL_TI_TEMPLATE(NODE) TI_TEMPLATE (DECL_TEMPLATE_INFO (NODE))
2383 /* The template arguments used to obtain this decl from the most
2384 general form of DECL_TI_TEMPLATE. For the example given for
2385 DECL_TI_TEMPLATE, the DECL_TI_ARGS will be {int, double}. These
2386 are always the full set of arguments required to instantiate this
2387 declaration from the most general template specialized here. */
2388 #define DECL_TI_ARGS(NODE) TI_ARGS (DECL_TEMPLATE_INFO (NODE))
2390 /* The TEMPLATE_DECL associated with NODE, a class type. Even if NODE
2391 will be generated from a partial specialization, the TEMPLATE_DECL
2392 referred to here will be the original template. For example,
2395 template <typename T> struct S {};
2396 template <typename T> struct S<T*> {};
2398 the CLASSTPYE_TI_TEMPLATE for S<int*> will be S, not the S<T*>. */
2399 #define CLASSTYPE_TI_TEMPLATE(NODE) TI_TEMPLATE (CLASSTYPE_TEMPLATE_INFO (NODE))
2400 #define CLASSTYPE_TI_ARGS(NODE) TI_ARGS (CLASSTYPE_TEMPLATE_INFO (NODE))
2402 /* For a template instantiation TYPE, returns the TYPE corresponding
2403 to the primary template. Otherwise returns TYPE itself. */
2404 #define CLASSTYPE_PRIMARY_TEMPLATE_TYPE(TYPE) \
2405 ((CLASSTYPE_USE_TEMPLATE ((TYPE)) \
2406 && !CLASSTYPE_TEMPLATE_SPECIALIZATION ((TYPE))) \
2407 ? TREE_TYPE (DECL_TEMPLATE_RESULT (DECL_PRIMARY_TEMPLATE \
2408 (CLASSTYPE_TI_TEMPLATE ((TYPE))))) \
2411 /* Like CLASS_TI_TEMPLATE, but also works for ENUMERAL_TYPEs. */
2412 #define TYPE_TI_TEMPLATE(NODE) \
2413 (TI_TEMPLATE (TYPE_TEMPLATE_INFO (NODE)))
2415 /* Like DECL_TI_ARGS, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2416 #define TYPE_TI_ARGS(NODE) \
2417 (TI_ARGS (TYPE_TEMPLATE_INFO (NODE)))
2419 #define INNERMOST_TEMPLATE_PARMS(NODE) TREE_VALUE (NODE)
2421 /* Nonzero if NODE (a TEMPLATE_DECL) is a member template, in the
2422 sense of [temp.mem]. */
2423 #define DECL_MEMBER_TEMPLATE_P(NODE) \
2424 (DECL_LANG_FLAG_1 (TEMPLATE_DECL_CHECK (NODE)))
2426 /* Nonzero if the NODE corresponds to the template parameters for a
2427 member template, whose inline definition is being processed after
2428 the class definition is complete. */
2429 #define TEMPLATE_PARMS_FOR_INLINE(NODE) TREE_LANG_FLAG_1 (NODE)
2431 /* Determine if a parameter (i.e., a PARM_DECL) is a function
2433 #define FUNCTION_PARAMETER_PACK_P(NODE) \
2434 (DECL_LANG_FLAG_1 (PARM_DECL_CHECK (NODE)))
2436 /* Determines if NODE is an expansion of one or more parameter packs,
2437 e.g., a TYPE_PACK_EXPANSION or EXPR_PACK_EXPANSION. */
2438 #define PACK_EXPANSION_P(NODE) \
2439 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION \
2440 || TREE_CODE (NODE) == EXPR_PACK_EXPANSION)
2442 /* Extracts the type or expression pattern from a TYPE_PACK_EXPANSION or
2443 EXPR_PACK_EXPANSION. */
2444 #define PACK_EXPANSION_PATTERN(NODE) \
2445 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION? TREE_TYPE (NODE) \
2446 : TREE_OPERAND (NODE, 0))
2448 /* Sets the type or expression pattern for a TYPE_PACK_EXPANSION or
2449 EXPR_PACK_EXPANSION. */
2450 #define SET_PACK_EXPANSION_PATTERN(NODE,VALUE) \
2451 if (TREE_CODE (NODE) == TYPE_PACK_EXPANSION) \
2452 TREE_TYPE (NODE) = VALUE; \
2454 TREE_OPERAND (NODE, 0) = VALUE
2456 /* The list of parameter packs used in the PACK_EXPANSION_* node. The
2457 TREE_VALUE of each TREE_LIST contains the parameter packs. */
2458 #define PACK_EXPANSION_PARAMETER_PACKS(NODE) TREE_CHAIN (NODE)
2460 /* Determine if this is an argument pack. */
2461 #define ARGUMENT_PACK_P(NODE) \
2462 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK \
2463 || TREE_CODE (NODE) == NONTYPE_ARGUMENT_PACK)
2465 /* The arguments stored in an argument pack. Arguments are stored in a
2466 TREE_VEC, which may have length zero. */
2467 #define ARGUMENT_PACK_ARGS(NODE) \
2468 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK? TREE_TYPE (NODE) \
2469 : TREE_OPERAND (NODE, 0))
2471 /* Set the arguments stored in an argument pack. VALUE must be a
2473 #define SET_ARGUMENT_PACK_ARGS(NODE,VALUE) \
2474 if (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK) \
2475 TREE_TYPE (NODE) = VALUE; \
2477 TREE_OPERAND (NODE, 0) = VALUE
2479 /* Whether the argument pack is "incomplete", meaning that more
2480 arguments can still be deduced. Incomplete argument packs are only
2481 used when the user has provided an explicit template argument list
2482 for a variadic function template. Some of the explicit template
2483 arguments will be placed into the beginning of the argument pack,
2484 but additional arguments might still be deduced. */
2485 #define ARGUMENT_PACK_INCOMPLETE_P(NODE) \
2486 TREE_LANG_FLAG_0 (ARGUMENT_PACK_ARGS (NODE))
2488 /* When ARGUMENT_PACK_INCOMPLETE_P, stores the explicit template
2489 arguments used to fill this pack. */
2490 #define ARGUMENT_PACK_EXPLICIT_ARGS(NODE) \
2491 TREE_TYPE (ARGUMENT_PACK_ARGS (NODE))
2493 /* In an ARGUMENT_PACK_SELECT, the argument pack from which an
2494 argument will be selected. */
2495 #define ARGUMENT_PACK_SELECT_FROM_PACK(NODE) \
2496 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->argument_pack)
2498 /* In an ARGUMENT_PACK_SELECT, the index of the argument we want to
2500 #define ARGUMENT_PACK_SELECT_INDEX(NODE) \
2501 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->index)
2503 /* In an ARGUMENT_PACK_SELECT, the actual underlying argument that the
2504 ARGUMENT_PACK_SELECT represents. */
2505 #define ARGUMENT_PACK_SELECT_ARG(NODE) \
2506 TREE_VEC_ELT (ARGUMENT_PACK_ARGS (ARGUMENT_PACK_SELECT_FROM_PACK (NODE)), \
2507 ARGUMENT_PACK_SELECT_INDEX (NODE));
2509 /* In a FUNCTION_DECL, the saved language-specific per-function data. */
2510 #define DECL_SAVED_FUNCTION_DATA(NODE) \
2511 (LANG_DECL_FN_CHECK (FUNCTION_DECL_CHECK (NODE)) \
2512 ->u.saved_language_function)
2514 /* Indicates an indirect_expr is for converting a reference. */
2515 #define REFERENCE_REF_P(NODE) \
2516 TREE_LANG_FLAG_0 (INDIRECT_REF_CHECK (NODE))
2518 #define NEW_EXPR_USE_GLOBAL(NODE) \
2519 TREE_LANG_FLAG_0 (NEW_EXPR_CHECK (NODE))
2520 #define DELETE_EXPR_USE_GLOBAL(NODE) \
2521 TREE_LANG_FLAG_0 (DELETE_EXPR_CHECK (NODE))
2522 #define DELETE_EXPR_USE_VEC(NODE) \
2523 TREE_LANG_FLAG_1 (DELETE_EXPR_CHECK (NODE))
2525 /* Indicates that this is a non-dependent COMPOUND_EXPR which will
2526 resolve to a function call. */
2527 #define COMPOUND_EXPR_OVERLOADED(NODE) \
2528 TREE_LANG_FLAG_0 (COMPOUND_EXPR_CHECK (NODE))
2530 /* In a CALL_EXPR appearing in a template, true if Koenig lookup
2531 should be performed at instantiation time. */
2532 #define KOENIG_LOOKUP_P(NODE) TREE_LANG_FLAG_0 (CALL_EXPR_CHECK (NODE))
2534 /* Indicates whether a string literal has been parenthesized. Such
2535 usages are disallowed in certain circumstances. */
2537 #define PAREN_STRING_LITERAL_P(NODE) \
2538 TREE_LANG_FLAG_0 (STRING_CST_CHECK (NODE))
2540 /* Nonzero if this AGGR_INIT_EXPR provides for initialization via a
2541 constructor call, rather than an ordinary function call. */
2542 #define AGGR_INIT_VIA_CTOR_P(NODE) \
2543 TREE_LANG_FLAG_0 (AGGR_INIT_EXPR_CHECK (NODE))
2545 /* Nonzero if expanding this AGGR_INIT_EXPR should first zero-initialize
2547 #define AGGR_INIT_ZERO_FIRST(NODE) \
2548 TREE_LANG_FLAG_2 (AGGR_INIT_EXPR_CHECK (NODE))
2550 /* AGGR_INIT_EXPR accessors. These are equivalent to the CALL_EXPR
2551 accessors, except for AGGR_INIT_EXPR_SLOT (which takes the place of
2552 CALL_EXPR_STATIC_CHAIN). */
2554 #define AGGR_INIT_EXPR_FN(NODE) TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 1)
2555 #define AGGR_INIT_EXPR_SLOT(NODE) \
2556 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 2)
2557 #define AGGR_INIT_EXPR_ARG(NODE, I) \
2558 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), (I) + 3)
2559 #define aggr_init_expr_nargs(NODE) (VL_EXP_OPERAND_LENGTH(NODE) - 3)
2561 /* AGGR_INIT_EXPR_ARGP returns a pointer to the argument vector for NODE.
2562 We can't use &AGGR_INIT_EXPR_ARG (NODE, 0) because that will complain if
2563 the argument count is zero when checking is enabled. Instead, do
2564 the pointer arithmetic to advance past the 3 fixed operands in a
2565 AGGR_INIT_EXPR. That produces a valid pointer to just past the end of
2566 the operand array, even if it's not valid to dereference it. */
2567 #define AGGR_INIT_EXPR_ARGP(NODE) \
2568 (&(TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 0)) + 3)
2570 /* Abstract iterators for AGGR_INIT_EXPRs. */
2572 /* Structure containing iterator state. */
2573 typedef struct GTY (()) aggr_init_expr_arg_iterator_d {
2574 tree t; /* the aggr_init_expr */
2575 int n; /* argument count */
2576 int i; /* next argument index */
2577 } aggr_init_expr_arg_iterator;
2579 /* Initialize the abstract argument list iterator object ITER with the
2580 arguments from AGGR_INIT_EXPR node EXP. */
2582 init_aggr_init_expr_arg_iterator (tree exp,
2583 aggr_init_expr_arg_iterator *iter)
2586 iter->n = aggr_init_expr_nargs (exp);
2590 /* Return the next argument from abstract argument list iterator object ITER,
2591 and advance its state. Return NULL_TREE if there are no more arguments. */
2593 next_aggr_init_expr_arg (aggr_init_expr_arg_iterator *iter)
2596 if (iter->i >= iter->n)
2598 result = AGGR_INIT_EXPR_ARG (iter->t, iter->i);
2603 /* Initialize the abstract argument list iterator object ITER, then advance
2604 past and return the first argument. Useful in for expressions, e.g.
2605 for (arg = first_aggr_init_expr_arg (exp, &iter); arg;
2606 arg = next_aggr_init_expr_arg (&iter)) */
2608 first_aggr_init_expr_arg (tree exp, aggr_init_expr_arg_iterator *iter)
2610 init_aggr_init_expr_arg_iterator (exp, iter);
2611 return next_aggr_init_expr_arg (iter);
2614 /* Test whether there are more arguments in abstract argument list iterator
2615 ITER, without changing its state. */
2617 more_aggr_init_expr_args_p (const aggr_init_expr_arg_iterator *iter)
2619 return (iter->i < iter->n);
2622 /* Iterate through each argument ARG of AGGR_INIT_EXPR CALL, using variable
2623 ITER (of type aggr_init_expr_arg_iterator) to hold the iteration state. */
2624 #define FOR_EACH_AGGR_INIT_EXPR_ARG(arg, iter, call) \
2625 for ((arg) = first_aggr_init_expr_arg ((call), &(iter)); (arg); \
2626 (arg) = next_aggr_init_expr_arg (&(iter)))
2628 /* The TYPE_MAIN_DECL for a class template type is a TYPE_DECL, not a
2629 TEMPLATE_DECL. This macro determines whether or not a given class
2630 type is really a template type, as opposed to an instantiation or
2631 specialization of one. */
2632 #define CLASSTYPE_IS_TEMPLATE(NODE) \
2633 (CLASSTYPE_TEMPLATE_INFO (NODE) \
2634 && !CLASSTYPE_USE_TEMPLATE (NODE) \
2635 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE)))
2637 /* The name used by the user to name the typename type. Typically,
2638 this is an IDENTIFIER_NODE, and the same as the DECL_NAME on the
2639 corresponding TYPE_DECL. However, this may also be a
2640 TEMPLATE_ID_EXPR if we had something like `typename X::Y<T>'. */
2641 #define TYPENAME_TYPE_FULLNAME(NODE) (TYPENAME_TYPE_CHECK (NODE))->type.values
2643 /* True if a TYPENAME_TYPE was declared as an "enum". */
2644 #define TYPENAME_IS_ENUM_P(NODE) \
2645 (TREE_LANG_FLAG_0 (TYPENAME_TYPE_CHECK (NODE)))
2647 /* True if a TYPENAME_TYPE was declared as a "class", "struct", or
2649 #define TYPENAME_IS_CLASS_P(NODE) \
2650 (TREE_LANG_FLAG_1 (TYPENAME_TYPE_CHECK (NODE)))
2652 /* True if a TYPENAME_TYPE is in the process of being resolved. */
2653 #define TYPENAME_IS_RESOLVING_P(NODE) \
2654 (TREE_LANG_FLAG_2 (TYPENAME_TYPE_CHECK (NODE)))
2656 /* Nonzero in INTEGER_CST means that this int is negative by dint of
2657 using a twos-complement negated operand. */
2658 #define TREE_NEGATED_INT(NODE) TREE_LANG_FLAG_0 (INTEGER_CST_CHECK (NODE))
2662 A class that declares or inherits a virtual function is called a
2663 polymorphic class. */
2664 #define TYPE_POLYMORPHIC_P(NODE) (TREE_LANG_FLAG_2 (NODE))
2666 /* Nonzero if this class has a virtual function table pointer. */
2667 #define TYPE_CONTAINS_VPTR_P(NODE) \
2668 (TYPE_POLYMORPHIC_P (NODE) || CLASSTYPE_VBASECLASSES (NODE))
2670 /* This flag is true of a local VAR_DECL if it was declared in a for
2671 statement, but we are no longer in the scope of the for. */
2672 #define DECL_DEAD_FOR_LOCAL(NODE) DECL_LANG_FLAG_7 (VAR_DECL_CHECK (NODE))
2674 /* This flag is set on a VAR_DECL that is a DECL_DEAD_FOR_LOCAL
2675 if we already emitted a warning about using it. */
2676 #define DECL_ERROR_REPORTED(NODE) DECL_LANG_FLAG_0 (VAR_DECL_CHECK (NODE))
2678 /* Nonzero if NODE is a FUNCTION_DECL (for a function with global
2679 scope) declared in a local scope. */
2680 #define DECL_LOCAL_FUNCTION_P(NODE) \
2681 DECL_LANG_FLAG_0 (FUNCTION_DECL_CHECK (NODE))
2683 /* Nonzero if NODE is a DECL which we know about but which has not
2684 been explicitly declared, such as a built-in function or a friend
2685 declared inside a class. In the latter case DECL_HIDDEN_FRIEND_P
2687 #define DECL_ANTICIPATED(NODE) \
2688 (DECL_LANG_SPECIFIC (DECL_COMMON_CHECK (NODE))->u.base.anticipated_p)
2690 /* Nonzero if NODE is a FUNCTION_DECL which was declared as a friend
2691 within a class but has not been declared in the surrounding scope.
2692 The function is invisible except via argument dependent lookup. */
2693 #define DECL_HIDDEN_FRIEND_P(NODE) \
2694 (LANG_DECL_FN_CHECK (DECL_COMMON_CHECK (NODE))->hidden_friend_p)
2696 /* Nonzero if DECL has been declared threadprivate by
2697 #pragma omp threadprivate. */
2698 #define CP_DECL_THREADPRIVATE_P(DECL) \
2699 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (DECL))->u.base.threadprivate_or_deleted_p)
2701 /* Nonzero if DECL was declared with '= delete'. */
2702 #define DECL_DELETED_FN(DECL) \
2703 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->u.base.threadprivate_or_deleted_p)
2705 /* Nonzero if DECL was declared with '= default'. */
2706 #define DECL_DEFAULTED_FN(DECL) \
2707 (LANG_DECL_FN_CHECK (DECL)->defaulted_p)
2709 /* Record whether a typedef for type `int' was actually `signed int'. */
2710 #define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP)
2712 /* Returns nonzero if DECL has external linkage, as specified by the
2713 language standard. (This predicate may hold even when the
2714 corresponding entity is not actually given external linkage in the
2715 object file; see decl_linkage for details.) */
2716 #define DECL_EXTERNAL_LINKAGE_P(DECL) \
2717 (decl_linkage (DECL) == lk_external)
2719 /* Keep these codes in ascending code order. */
2721 #define INTEGRAL_CODE_P(CODE) \
2722 ((CODE) == ENUMERAL_TYPE \
2723 || (CODE) == BOOLEAN_TYPE \
2724 || (CODE) == INTEGER_TYPE)
2726 /* [basic.fundamental]
2728 Types bool, char, wchar_t, and the signed and unsigned integer types
2729 are collectively called integral types.
2731 Note that INTEGRAL_TYPE_P, as defined in tree.h, allows enumeration
2732 types as well, which is incorrect in C++. Keep these checks in
2733 ascending code order. */
2734 #define CP_INTEGRAL_TYPE_P(TYPE) \
2735 (TREE_CODE (TYPE) == BOOLEAN_TYPE \
2736 || TREE_CODE (TYPE) == INTEGER_TYPE)
2738 /* Returns true if TYPE is an integral or enumeration name. Keep
2739 these checks in ascending code order. */
2740 #define INTEGRAL_OR_ENUMERATION_TYPE_P(TYPE) \
2741 (TREE_CODE (TYPE) == ENUMERAL_TYPE || CP_INTEGRAL_TYPE_P (TYPE))
2743 /* Returns true if TYPE is an integral or unscoped enumeration type. */
2744 #define INTEGRAL_OR_UNSCOPED_ENUMERATION_TYPE_P(TYPE) \
2745 (UNSCOPED_ENUM_P (TYPE) || CP_INTEGRAL_TYPE_P (TYPE))
2747 /* [basic.fundamental]
2749 Integral and floating types are collectively called arithmetic
2752 As a GNU extension, we also accept complex types.
2754 Keep these checks in ascending code order. */
2755 #define ARITHMETIC_TYPE_P(TYPE) \
2756 (CP_INTEGRAL_TYPE_P (TYPE) \
2757 || TREE_CODE (TYPE) == REAL_TYPE \
2758 || TREE_CODE (TYPE) == COMPLEX_TYPE)
2762 Arithmetic types, enumeration types, pointer types, and
2763 pointer-to-member types, are collectively called scalar types.
2765 Keep these checks in ascending code order. */
2766 #define SCALAR_TYPE_P(TYPE) \
2767 (TYPE_PTRMEM_P (TYPE) \
2768 || TREE_CODE (TYPE) == ENUMERAL_TYPE \
2769 || ARITHMETIC_TYPE_P (TYPE) \
2770 || TYPE_PTR_P (TYPE) \
2771 || TYPE_PTRMEMFUNC_P (TYPE))
2773 /* Determines whether this type is a C++0x scoped enumeration
2774 type. Scoped enumerations types are introduced via "enum class" or
2775 "enum struct", e.g.,
2781 Scoped enumeration types are different from normal (unscoped)
2782 enumeration types in several ways:
2784 - The enumerators of a scoped enumeration type are only available
2785 within the scope of the enumeration type and not in the
2786 enclosing scope. For example, the Red color can be referred to
2787 with "Color::Red" but not "Red".
2789 - Scoped enumerators and enumerations do not implicitly convert
2790 to integers or 'bool'.
2792 - The underlying type of the enum is well-defined. */
2793 #define SCOPED_ENUM_P(TYPE) \
2794 (TREE_CODE (TYPE) == ENUMERAL_TYPE && TYPE_LANG_FLAG_5 (TYPE))
2796 /* Determine whether this is an unscoped enumeration type. */
2797 #define UNSCOPED_ENUM_P(TYPE) \
2798 (TREE_CODE (TYPE) == ENUMERAL_TYPE && !TYPE_LANG_FLAG_5 (TYPE))
2800 /* Set the flag indicating whether an ENUMERAL_TYPE is a C++0x scoped
2801 enumeration type (1) or a normal (unscoped) enumeration type
2803 #define SET_SCOPED_ENUM_P(TYPE, VAL) \
2804 (TYPE_LANG_FLAG_5 (ENUMERAL_TYPE_CHECK (TYPE)) = (VAL))
2806 /* Returns the underlying type of the given enumeration type. The
2807 underlying type is determined in different ways, depending on the
2808 properties of the enum:
2810 - In C++0x, the underlying type can be explicitly specified, e.g.,
2812 enum E1 : char { ... } // underlying type is char
2814 - In a C++0x scoped enumeration, the underlying type is int
2815 unless otherwises specified:
2817 enum class E2 { ... } // underlying type is int
2819 - Otherwise, the underlying type is determined based on the
2820 values of the enumerators. In this case, the
2821 ENUM_UNDERLYING_TYPE will not be set until after the definition
2822 of the enumeration is completed by finish_enum. */
2823 #define ENUM_UNDERLYING_TYPE(TYPE) \
2824 TREE_TYPE (ENUMERAL_TYPE_CHECK (TYPE))
2828 An aggregate is an array or a class with no user-declared
2829 constructors, no private or protected non-static data members, no
2830 base classes, and no virtual functions.
2832 As an extension, we also treat vectors as aggregates. Keep these
2833 checks in ascending code order. */
2834 #define CP_AGGREGATE_TYPE_P(TYPE) \
2835 (TREE_CODE (TYPE) == VECTOR_TYPE \
2836 ||TREE_CODE (TYPE) == ARRAY_TYPE \
2837 || (CLASS_TYPE_P (TYPE) && !CLASSTYPE_NON_AGGREGATE (TYPE)))
2839 /* Nonzero for a class type means that the class type has a
2840 user-declared constructor. */
2841 #define TYPE_HAS_USER_CONSTRUCTOR(NODE) (TYPE_LANG_FLAG_1 (NODE))
2843 /* When appearing in an INDIRECT_REF, it means that the tree structure
2844 underneath is actually a call to a constructor. This is needed
2845 when the constructor must initialize local storage (which can
2846 be automatically destroyed), rather than allowing it to allocate
2847 space from the heap.
2849 When appearing in a SAVE_EXPR, it means that underneath
2850 is a call to a constructor.
2852 When appearing in a CONSTRUCTOR, the expression is a
2855 When appearing in a FIELD_DECL, it means that this field
2856 has been duly initialized in its constructor. */
2857 #define TREE_HAS_CONSTRUCTOR(NODE) (TREE_LANG_FLAG_4 (NODE))
2859 /* True if NODE is a brace-enclosed initializer. */
2860 #define BRACE_ENCLOSED_INITIALIZER_P(NODE) \
2861 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_TYPE (NODE) == init_list_type_node)
2863 /* True if NODE is a compound-literal, i.e., a brace-enclosed
2864 initializer cast to a particular type. */
2865 #define COMPOUND_LITERAL_P(NODE) \
2866 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_HAS_CONSTRUCTOR (NODE))
2868 #define EMPTY_CONSTRUCTOR_P(NODE) (TREE_CODE (NODE) == CONSTRUCTOR \
2869 && VEC_empty (constructor_elt, \
2870 CONSTRUCTOR_ELTS (NODE)) \
2871 && !TREE_HAS_CONSTRUCTOR (NODE))
2873 /* True if NODE is a init-list used as a direct-initializer, i.e.
2874 B b{1,2}, not B b({1,2}) or B b = {1,2}. */
2875 #define CONSTRUCTOR_IS_DIRECT_INIT(NODE) (TREE_LANG_FLAG_0 (CONSTRUCTOR_CHECK (NODE)))
2877 /* Nonzero means that an object of this type can not be initialized using
2878 an initializer list. */
2879 #define CLASSTYPE_NON_AGGREGATE(NODE) \
2880 (LANG_TYPE_CLASS_CHECK (NODE)->non_aggregate)
2881 #define TYPE_NON_AGGREGATE_CLASS(NODE) \
2882 (CLASS_TYPE_P (NODE) && CLASSTYPE_NON_AGGREGATE (NODE))
2884 /* Nonzero if there is a user-defined X::op=(x&) for this class. */
2885 #define TYPE_HAS_COMPLEX_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_assign_ref)
2887 /* Nonzero if there is a user-defined X::X(x&) for this class. */
2888 #define TYPE_HAS_COMPLEX_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_init_ref)
2890 /* Nonzero if there is a user-defined default constructor for this class. */
2891 #define TYPE_HAS_COMPLEX_DFLT(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_dflt)
2893 /* Nonzero if TYPE has a trivial destructor. From [class.dtor]:
2895 A destructor is trivial if it is an implicitly declared
2898 - all of the direct base classes of its class have trivial
2901 - for all of the non-static data members of its class that are
2902 of class type (or array thereof), each such class has a
2903 trivial destructor. */
2904 #define TYPE_HAS_TRIVIAL_DESTRUCTOR(NODE) \
2905 (!TYPE_HAS_NONTRIVIAL_DESTRUCTOR (NODE))
2907 /* Nonzero for _TYPE node means that this type does not have a trivial
2908 destructor. Therefore, destroying an object of this type will
2909 involve a call to a destructor. This can apply to objects of
2910 ARRAY_TYPE is the type of the elements needs a destructor. */
2911 #define TYPE_HAS_NONTRIVIAL_DESTRUCTOR(NODE) \
2912 (TYPE_LANG_FLAG_4 (NODE))
2914 /* Nonzero for class type means that the default constructor is trivial. */
2915 #define TYPE_HAS_TRIVIAL_DFLT(NODE) \
2916 (TYPE_HAS_DEFAULT_CONSTRUCTOR (NODE) && ! TYPE_HAS_COMPLEX_DFLT (NODE))
2918 /* Nonzero for class type means that copy initialization of this type can use
2920 #define TYPE_HAS_TRIVIAL_INIT_REF(NODE) \
2921 (TYPE_HAS_INIT_REF (NODE) && ! TYPE_HAS_COMPLEX_INIT_REF (NODE))
2923 /* Nonzero for class type means that assignment of this type can use
2925 #define TYPE_HAS_TRIVIAL_ASSIGN_REF(NODE) \
2926 (TYPE_HAS_ASSIGN_REF (NODE) && ! TYPE_HAS_COMPLEX_ASSIGN_REF (NODE))
2928 /* Returns true if NODE is a pointer-to-data-member. */
2929 #define TYPE_PTRMEM_P(NODE) \
2930 (TREE_CODE (NODE) == OFFSET_TYPE)
2931 /* Returns true if NODE is a pointer. */
2932 #define TYPE_PTR_P(NODE) \
2933 (TREE_CODE (NODE) == POINTER_TYPE)
2935 /* Returns true if NODE is an object type:
2939 An object type is a (possibly cv-qualified) type that is not a
2940 function type, not a reference type, and not a void type.
2942 Keep these checks in ascending order, for speed. */
2943 #define TYPE_OBJ_P(NODE) \
2944 (TREE_CODE (NODE) != REFERENCE_TYPE \
2945 && TREE_CODE (NODE) != VOID_TYPE \
2946 && TREE_CODE (NODE) != FUNCTION_TYPE \
2947 && TREE_CODE (NODE) != METHOD_TYPE)
2949 /* Returns true if NODE is a pointer to an object. Keep these checks
2950 in ascending tree code order. */
2951 #define TYPE_PTROB_P(NODE) \
2952 (TYPE_PTR_P (NODE) && TYPE_OBJ_P (TREE_TYPE (NODE)))
2954 /* Returns true if NODE is a reference to an object. Keep these checks
2955 in ascending tree code order. */
2956 #define TYPE_REF_OBJ_P(NODE) \
2957 (TREE_CODE (NODE) == REFERENCE_TYPE && TYPE_OBJ_P (TREE_TYPE (NODE)))
2959 /* True if reference type NODE is an rvalue reference */
2960 #define TYPE_REF_IS_RVALUE(NODE) \
2961 TREE_LANG_FLAG_0 (REFERENCE_TYPE_CHECK (NODE))
2963 /* Returns true if NODE is a pointer to an object, or a pointer to
2964 void. Keep these checks in ascending tree code order. */
2965 #define TYPE_PTROBV_P(NODE) \
2966 (TYPE_PTR_P (NODE) \
2967 && !(TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE \
2968 || TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE))
2970 /* Returns true if NODE is a pointer to function. */
2971 #define TYPE_PTRFN_P(NODE) \
2972 (TREE_CODE (NODE) == POINTER_TYPE \
2973 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
2975 /* Returns true if NODE is a reference to function. */
2976 #define TYPE_REFFN_P(NODE) \
2977 (TREE_CODE (NODE) == REFERENCE_TYPE \
2978 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
2980 /* Nonzero for _TYPE node means that this type is a pointer to member
2982 #define TYPE_PTRMEMFUNC_P(NODE) \
2983 (TREE_CODE (NODE) == RECORD_TYPE \
2984 && TYPE_LANG_SPECIFIC (NODE) \
2985 && TYPE_PTRMEMFUNC_FLAG (NODE))
2987 #define TYPE_PTRMEMFUNC_FLAG(NODE) \
2988 (LANG_TYPE_CLASS_CHECK (NODE)->ptrmemfunc_flag)
2990 /* Returns true if NODE is a pointer-to-member. */
2991 #define TYPE_PTR_TO_MEMBER_P(NODE) \
2992 (TYPE_PTRMEM_P (NODE) || TYPE_PTRMEMFUNC_P (NODE))
2994 /* Indicates when overload resolution may resolve to a pointer to
2995 member function. [expr.unary.op]/3 */
2996 #define PTRMEM_OK_P(NODE) \
2997 TREE_LANG_FLAG_0 (TREE_CHECK2 ((NODE), ADDR_EXPR, OFFSET_REF))
2999 /* Get the POINTER_TYPE to the METHOD_TYPE associated with this
3000 pointer to member function. TYPE_PTRMEMFUNC_P _must_ be true,
3001 before using this macro. */
3002 #define TYPE_PTRMEMFUNC_FN_TYPE(NODE) \
3003 (TREE_TYPE (TYPE_FIELDS (NODE)))
3005 /* Returns `A' for a type like `int (A::*)(double)' */
3006 #define TYPE_PTRMEMFUNC_OBJECT_TYPE(NODE) \
3007 TYPE_METHOD_BASETYPE (TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
3009 /* These are use to manipulate the canonical RECORD_TYPE from the
3010 hashed POINTER_TYPE, and can only be used on the POINTER_TYPE. */
3011 #define TYPE_GET_PTRMEMFUNC_TYPE(NODE) \
3012 (TYPE_LANG_SPECIFIC (NODE) ? LANG_TYPE_PTRMEM_CHECK (NODE)->record : NULL)
3013 #define TYPE_SET_PTRMEMFUNC_TYPE(NODE, VALUE) \
3015 if (TYPE_LANG_SPECIFIC (NODE) == NULL) \
3017 TYPE_LANG_SPECIFIC (NODE) = GGC_CNEWVAR \
3018 (struct lang_type, sizeof (struct lang_type_ptrmem)); \
3019 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.h.is_lang_type_class = 0; \
3021 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.record = (VALUE); \
3024 /* For a pointer-to-member type of the form `T X::*', this is `X'.
3025 For a type like `void (X::*)() const', this type is `X', not `const
3026 X'. To get at the `const X' you have to look at the
3027 TYPE_PTRMEM_POINTED_TO_TYPE; there, the first parameter will have
3029 #define TYPE_PTRMEM_CLASS_TYPE(NODE) \
3030 (TYPE_PTRMEM_P (NODE) \
3031 ? TYPE_OFFSET_BASETYPE (NODE) \
3032 : TYPE_PTRMEMFUNC_OBJECT_TYPE (NODE))
3034 /* For a pointer-to-member type of the form `T X::*', this is `T'. */
3035 #define TYPE_PTRMEM_POINTED_TO_TYPE(NODE) \
3036 (TYPE_PTRMEM_P (NODE) \
3037 ? TREE_TYPE (NODE) \
3038 : TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
3040 /* For a pointer-to-member constant `X::Y' this is the RECORD_TYPE for
3042 #define PTRMEM_CST_CLASS(NODE) \
3043 TYPE_PTRMEM_CLASS_TYPE (TREE_TYPE (PTRMEM_CST_CHECK (NODE)))
3045 /* For a pointer-to-member constant `X::Y' this is the _DECL for
3047 #define PTRMEM_CST_MEMBER(NODE) (((ptrmem_cst_t)PTRMEM_CST_CHECK (NODE))->member)
3049 /* The expression in question for a TYPEOF_TYPE. */
3050 #define TYPEOF_TYPE_EXPR(NODE) (TYPEOF_TYPE_CHECK (NODE))->type.values
3052 /* The expression in question for a DECLTYPE_TYPE. */
3053 #define DECLTYPE_TYPE_EXPR(NODE) (DECLTYPE_TYPE_CHECK (NODE))->type.values
3055 /* Whether the DECLTYPE_TYPE_EXPR of NODE was originally parsed as an
3056 id-expression or a member-access expression. When false, it was
3057 parsed as a full expression. */
3058 #define DECLTYPE_TYPE_ID_EXPR_OR_MEMBER_ACCESS_P(NODE) \
3059 (DECLTYPE_TYPE_CHECK (NODE))->type.string_flag
3061 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `extern' was
3062 specified in its declaration. This can also be set for an
3063 erroneously declared PARM_DECL. */
3064 #define DECL_THIS_EXTERN(NODE) \
3065 DECL_LANG_FLAG_2 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
3067 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `static' was
3068 specified in its declaration. This can also be set for an
3069 erroneously declared PARM_DECL. */
3070 #define DECL_THIS_STATIC(NODE) \
3071 DECL_LANG_FLAG_6 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
3073 /* Nonzero for FIELD_DECL node means that this field is a base class
3074 of the parent object, as opposed to a member field. */
3075 #define DECL_FIELD_IS_BASE(NODE) \
3076 DECL_LANG_FLAG_6 (FIELD_DECL_CHECK (NODE))
3078 /* Nonzero if TYPE is an anonymous union or struct type. We have to use a
3079 flag for this because "A union for which objects or pointers are
3080 declared is not an anonymous union" [class.union]. */
3081 #define ANON_AGGR_TYPE_P(NODE) \
3082 (CLASS_TYPE_P (NODE) && LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr)
3083 #define SET_ANON_AGGR_TYPE_P(NODE) \
3084 (LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr = 1)
3086 /* Nonzero if TYPE is an anonymous union type. */
3087 #define ANON_UNION_TYPE_P(NODE) \
3088 (TREE_CODE (NODE) == UNION_TYPE && ANON_AGGR_TYPE_P (NODE))
3090 #define UNKNOWN_TYPE LANG_TYPE
3092 /* Define fields and accessors for nodes representing declared names. */
3094 #define TYPE_WAS_ANONYMOUS(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->was_anonymous)
3096 /* C++: all of these are overloaded! These apply only to TYPE_DECLs. */
3098 /* The format of each node in the DECL_FRIENDLIST is as follows:
3100 The TREE_PURPOSE will be the name of a function, i.e., an
3101 IDENTIFIER_NODE. The TREE_VALUE will be itself a TREE_LIST, whose
3102 TREE_VALUEs are friends with the given name. */
3103 #define DECL_FRIENDLIST(NODE) (DECL_INITIAL (NODE))
3104 #define FRIEND_NAME(LIST) (TREE_PURPOSE (LIST))
3105 #define FRIEND_DECLS(LIST) (TREE_VALUE (LIST))
3107 /* The DECL_ACCESS, if non-NULL, is a TREE_LIST. The TREE_PURPOSE of
3108 each node is a type; the TREE_VALUE is the access granted for this
3109 DECL in that type. The DECL_ACCESS is set by access declarations.
3110 For example, if a member that would normally be public in a
3111 derived class is made protected, then the derived class and the
3112 protected_access_node will appear in the DECL_ACCESS for the node. */
3113 #define DECL_ACCESS(NODE) (LANG_DECL_U2_CHECK (NODE, 0)->access)
3115 /* Nonzero if the FUNCTION_DECL is a global constructor. */
3116 #define DECL_GLOBAL_CTOR_P(NODE) \
3117 (LANG_DECL_FN_CHECK (NODE)->global_ctor_p)
3119 /* Nonzero if the FUNCTION_DECL is a global destructor. */
3120 #define DECL_GLOBAL_DTOR_P(NODE) \
3121 (LANG_DECL_FN_CHECK (NODE)->global_dtor_p)
3123 /* Accessor macros for C++ template decl nodes. */
3125 /* The DECL_TEMPLATE_PARMS are a list. The TREE_PURPOSE of each node
3126 is a INT_CST whose TREE_INT_CST_LOW indicates the level of the
3127 template parameters, with 1 being the outermost set of template
3128 parameters. The TREE_VALUE is a vector, whose elements are the
3129 template parameters at each level. Each element in the vector is a
3130 TREE_LIST, whose TREE_VALUE is a PARM_DECL (if the parameter is a
3131 non-type parameter), or a TYPE_DECL (if the parameter is a type
3132 parameter). The TREE_PURPOSE is the default value, if any. The
3133 TEMPLATE_PARM_INDEX for the parameter is available as the
3134 DECL_INITIAL (for a PARM_DECL) or as the TREE_TYPE (for a
3136 #define DECL_TEMPLATE_PARMS(NODE) DECL_NON_COMMON_CHECK (NODE)->decl_non_common.arguments
3137 #define DECL_INNERMOST_TEMPLATE_PARMS(NODE) \
3138 INNERMOST_TEMPLATE_PARMS (DECL_TEMPLATE_PARMS (NODE))
3139 #define DECL_NTPARMS(NODE) \
3140 TREE_VEC_LENGTH (DECL_INNERMOST_TEMPLATE_PARMS (NODE))
3141 /* For function, method, class-data templates. */
3142 #define DECL_TEMPLATE_RESULT(NODE) DECL_RESULT_FLD (NODE)
3143 /* For a function template at namespace scope, DECL_TEMPLATE_INSTANTIATIONS
3144 lists all instantiations and specializations of the function so that
3145 tsubst_friend_function can reassign them to another template if we find
3146 that the namespace-scope template is really a partial instantiation of a
3149 For a class template the DECL_TEMPLATE_INSTANTIATIONS lists holds
3150 all instantiations and specializations of the class type, including
3151 partial instantiations and partial specializations, so that if we
3152 explicitly specialize a partial instantiation we can walk the list
3153 in maybe_process_partial_specialization and reassign them or complain
3156 In both cases, the TREE_PURPOSE of each node contains the arguments
3157 used; the TREE_VALUE contains the generated variable. The template
3158 arguments are always complete. For example, given:
3160 template <class T> struct S1 {
3161 template <class U> struct S2 {};
3162 template <class U> struct S2<U*> {};
3165 the record for the partial specialization will contain, as its
3166 argument list, { {T}, {U*} }, and will be on the
3167 DECL_TEMPLATE_INSTANTIATIONS list for `template <class T> template
3168 <class U> struct S1<T>::S2'.
3170 This list is not used for other templates. */
3171 #define DECL_TEMPLATE_INSTANTIATIONS(NODE) DECL_VINDEX (NODE)
3172 /* For a class template, this list contains the partial
3173 specializations of this template. (Full specializations are not
3174 recorded on this list.) The TREE_PURPOSE holds the arguments used
3175 in the partial specialization (e.g., for `template <class T> struct
3176 S<T*, int>' this will be `T*'.) The arguments will also include
3177 any outer template arguments. The TREE_VALUE holds the innermost
3178 template parameters for the specialization (e.g., `T' in the
3179 example above.) The TREE_TYPE is the _TYPE node for the partial
3182 This list is not used for other templates. */
3183 #define DECL_TEMPLATE_SPECIALIZATIONS(NODE) DECL_SIZE (NODE)
3185 /* Nonzero for a DECL which is actually a template parameter. Keep
3186 these checks in ascending tree code order. */
3187 #define DECL_TEMPLATE_PARM_P(NODE) \
3188 (DECL_LANG_FLAG_0 (NODE) \
3189 && (TREE_CODE (NODE) == CONST_DECL \
3190 || TREE_CODE (NODE) == PARM_DECL \
3191 || TREE_CODE (NODE) == TYPE_DECL \
3192 || TREE_CODE (NODE) == TEMPLATE_DECL))
3194 /* Mark NODE as a template parameter. */
3195 #define SET_DECL_TEMPLATE_PARM_P(NODE) \
3196 (DECL_LANG_FLAG_0 (NODE) = 1)
3198 /* Nonzero if NODE is a template template parameter. */
3199 #define DECL_TEMPLATE_TEMPLATE_PARM_P(NODE) \
3200 (TREE_CODE (NODE) == TEMPLATE_DECL && DECL_TEMPLATE_PARM_P (NODE))
3202 /* Nonzero if NODE is a TEMPLATE_DECL representing an
3203 UNBOUND_CLASS_TEMPLATE tree node. */
3204 #define DECL_UNBOUND_CLASS_TEMPLATE_P(NODE) \
3205 (TREE_CODE (NODE) == TEMPLATE_DECL && !DECL_TEMPLATE_RESULT (NODE))
3207 #define DECL_FUNCTION_TEMPLATE_P(NODE) \
3208 (TREE_CODE (NODE) == TEMPLATE_DECL \
3209 && !DECL_UNBOUND_CLASS_TEMPLATE_P (NODE) \
3210 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == FUNCTION_DECL)
3212 /* Nonzero for a DECL that represents a template class. */
3213 #define DECL_CLASS_TEMPLATE_P(NODE) \
3214 (TREE_CODE (NODE) == TEMPLATE_DECL \
3215 && DECL_TEMPLATE_RESULT (NODE) != NULL_TREE \
3216 && DECL_IMPLICIT_TYPEDEF_P (DECL_TEMPLATE_RESULT (NODE)))
3218 /* Nonzero if NODE which declares a type. */
3219 #define DECL_DECLARES_TYPE_P(NODE) \
3220 (TREE_CODE (NODE) == TYPE_DECL || DECL_CLASS_TEMPLATE_P (NODE))
3222 /* Nonzero if NODE declares a function. */
3223 #define DECL_DECLARES_FUNCTION_P(NODE) \
3224 (TREE_CODE (NODE) == FUNCTION_DECL || DECL_FUNCTION_TEMPLATE_P (NODE))
3226 /* Nonzero if NODE is the typedef implicitly generated for a type when
3227 the type is declared. In C++, `struct S {};' is roughly
3228 equivalent to `struct S {}; typedef struct S S;' in C.
3229 DECL_IMPLICIT_TYPEDEF_P will hold for the typedef indicated in this
3230 example. In C++, there is a second implicit typedef for each
3231 class, in the scope of `S' itself, so that you can say `S::S'.
3232 DECL_SELF_REFERENCE_P will hold for that second typedef. */
3233 #define DECL_IMPLICIT_TYPEDEF_P(NODE) \
3234 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_2 (NODE))
3235 #define SET_DECL_IMPLICIT_TYPEDEF_P(NODE) \
3236 (DECL_LANG_FLAG_2 (NODE) = 1)
3237 #define DECL_SELF_REFERENCE_P(NODE) \
3238 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_4 (NODE))
3239 #define SET_DECL_SELF_REFERENCE_P(NODE) \
3240 (DECL_LANG_FLAG_4 (NODE) = 1)
3242 /* A `primary' template is one that has its own template header. A
3243 member function of a class template is a template, but not primary.
3244 A member template is primary. Friend templates are primary, too. */
3246 /* Returns the primary template corresponding to these parameters. */
3247 #define DECL_PRIMARY_TEMPLATE(NODE) \
3248 (TREE_TYPE (DECL_INNERMOST_TEMPLATE_PARMS (NODE)))
3250 /* Returns nonzero if NODE is a primary template. */
3251 #define PRIMARY_TEMPLATE_P(NODE) (DECL_PRIMARY_TEMPLATE (NODE) == (NODE))
3253 /* Nonzero iff NODE is a specialization of a template. The value
3254 indicates the type of specializations:
3256 1=implicit instantiation
3258 2=partial or explicit specialization, e.g.:
3260 template <> int min<int> (int, int),
3262 3=explicit instantiation, e.g.:
3264 template int min<int> (int, int);
3266 Note that NODE will be marked as a specialization even if the
3267 template it is instantiating is not a primary template. For
3270 template <typename T> struct O {
3275 both O<int>::f and O<int>::I will be marked as instantiations.
3277 If DECL_USE_TEMPLATE is nonzero, then DECL_TEMPLATE_INFO will also
3279 #define DECL_USE_TEMPLATE(NODE) (DECL_LANG_SPECIFIC (NODE)->u.base.use_template)
3281 /* Like DECL_USE_TEMPLATE, but for class types. */
3282 #define CLASSTYPE_USE_TEMPLATE(NODE) \
3283 (LANG_TYPE_CLASS_CHECK (NODE)->use_template)
3285 /* True if NODE is a specialization of a primary template. */
3286 #define CLASSTYPE_SPECIALIZATION_OF_PRIMARY_TEMPLATE_P(NODE) \
3287 (CLASS_TYPE_P (NODE) \
3288 && CLASSTYPE_USE_TEMPLATE (NODE) \
3289 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE)))
3291 #define DECL_TEMPLATE_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) & 1)
3292 #define CLASSTYPE_TEMPLATE_INSTANTIATION(NODE) \
3293 (CLASSTYPE_USE_TEMPLATE (NODE) & 1)
3295 #define DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) == 2)
3296 #define SET_DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) = 2)
3298 /* Returns true for an explicit or partial specialization of a class
3300 #define CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
3301 (CLASSTYPE_USE_TEMPLATE (NODE) == 2)
3302 #define SET_CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
3303 (CLASSTYPE_USE_TEMPLATE (NODE) = 2)
3305 #define DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 1)
3306 #define SET_DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 1)
3307 #define CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
3308 (CLASSTYPE_USE_TEMPLATE (NODE) == 1)
3309 #define SET_CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
3310 (CLASSTYPE_USE_TEMPLATE (NODE) = 1)
3312 #define DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 3)
3313 #define SET_DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 3)
3314 #define CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
3315 (CLASSTYPE_USE_TEMPLATE (NODE) == 3)
3316 #define SET_CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
3317 (CLASSTYPE_USE_TEMPLATE (NODE) = 3)
3319 /* Nonzero if DECL is a friend function which is an instantiation
3320 from the point of view of the compiler, but not from the point of
3321 view of the language. For example given:
3322 template <class T> struct S { friend void f(T) {}; };
3323 the declaration of `void f(int)' generated when S<int> is
3324 instantiated will not be a DECL_TEMPLATE_INSTANTIATION, but will be
3325 a DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION. */
3326 #define DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION(DECL) \
3327 (DECL_TEMPLATE_INFO (DECL) && !DECL_USE_TEMPLATE (DECL))
3329 /* Nonzero iff we are currently processing a declaration for an
3330 entity with its own template parameter list, and which is not a
3331 full specialization. */
3332 #define PROCESSING_REAL_TEMPLATE_DECL_P() \
3333 (processing_template_decl > template_class_depth (current_scope ()))
3335 /* Nonzero if this VAR_DECL or FUNCTION_DECL has already been
3336 instantiated, i.e. its definition has been generated from the
3337 pattern given in the template. */
3338 #define DECL_TEMPLATE_INSTANTIATED(NODE) \
3339 DECL_LANG_FLAG_1 (VAR_OR_FUNCTION_DECL_CHECK (NODE))
3341 /* We know what we're doing with this decl now. */
3342 #define DECL_INTERFACE_KNOWN(NODE) DECL_LANG_FLAG_5 (NODE)
3344 /* DECL_EXTERNAL must be set on a decl until the decl is actually emitted,
3345 so that assemble_external will work properly. So we have this flag to
3346 tell us whether the decl is really not external.
3348 This flag does not indicate whether or not the decl is defined in the
3349 current translation unit; it indicates whether or not we should emit the
3350 decl at the end of compilation if it is defined and needed. */
3351 #define DECL_NOT_REALLY_EXTERN(NODE) \
3352 (DECL_LANG_SPECIFIC (NODE)->u.base.not_really_extern)
3354 #define DECL_REALLY_EXTERN(NODE) \
3355 (DECL_EXTERNAL (NODE) && ! DECL_NOT_REALLY_EXTERN (NODE))
3357 /* A thunk is a stub function.
3359 A thunk is an alternate entry point for an ordinary FUNCTION_DECL.
3360 The address of the ordinary FUNCTION_DECL is given by the
3361 DECL_INITIAL, which is always an ADDR_EXPR whose operand is a
3362 FUNCTION_DECL. The job of the thunk is to either adjust the this
3363 pointer before transferring control to the FUNCTION_DECL, or call
3364 FUNCTION_DECL and then adjust the result value. Note, the result
3365 pointer adjusting thunk must perform a call to the thunked
3366 function, (or be implemented via passing some invisible parameter
3367 to the thunked function, which is modified to perform the
3368 adjustment just before returning).
3370 A thunk may perform either, or both, of the following operations:
3372 o Adjust the this or result pointer by a constant offset.
3373 o Adjust the this or result pointer by looking up a vcall or vbase offset
3376 A this pointer adjusting thunk converts from a base to a derived
3377 class, and hence adds the offsets. A result pointer adjusting thunk
3378 converts from a derived class to a base, and hence subtracts the
3379 offsets. If both operations are performed, then the constant
3380 adjustment is performed first for this pointer adjustment and last
3381 for the result pointer adjustment.
3383 The constant adjustment is given by THUNK_FIXED_OFFSET. If the
3384 vcall or vbase offset is required, THUNK_VIRTUAL_OFFSET is
3385 used. For this pointer adjusting thunks, it is the vcall offset
3386 into the vtable. For result pointer adjusting thunks it is the
3387 binfo of the virtual base to convert to. Use that binfo's vbase
3390 It is possible to have equivalent covariant thunks. These are
3391 distinct virtual covariant thunks whose vbase offsets happen to
3392 have the same value. THUNK_ALIAS is used to pick one as the
3393 canonical thunk, which will get all the this pointer adjusting
3394 thunks attached to it. */
3396 /* An integer indicating how many bytes should be subtracted from the
3397 this or result pointer when this function is called. */
3398 #define THUNK_FIXED_OFFSET(DECL) \
3399 (DECL_LANG_SPECIFIC (THUNK_FUNCTION_CHECK (DECL))->u.fn.u5.fixed_offset)
3401 /* A tree indicating how to perform the virtual adjustment. For a this
3402 adjusting thunk it is the number of bytes to be added to the vtable
3403 to find the vcall offset. For a result adjusting thunk, it is the
3404 binfo of the relevant virtual base. If NULL, then there is no
3405 virtual adjust. (The vptr is always located at offset zero from
3406 the this or result pointer.) (If the covariant type is within the
3407 class hierarchy being laid out, the vbase index is not yet known
3408 at the point we need to create the thunks, hence the need to use
3411 #define THUNK_VIRTUAL_OFFSET(DECL) \
3412 (LANG_DECL_U2_CHECK (FUNCTION_DECL_CHECK (DECL), 0)->access)
3414 /* A thunk which is equivalent to another thunk. */
3415 #define THUNK_ALIAS(DECL) \
3416 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->u.min.template_info)
3418 /* For thunk NODE, this is the FUNCTION_DECL thunked to. It is
3419 possible for the target to be a thunk too. */
3420 #define THUNK_TARGET(NODE) \
3421 (LANG_DECL_FN_CHECK (NODE)->befriending_classes)
3423 /* True for a SCOPE_REF iff the "template" keyword was used to
3424 indicate that the qualified name denotes a template. */
3425 #define QUALIFIED_NAME_IS_TEMPLATE(NODE) \
3426 (TREE_LANG_FLAG_0 (SCOPE_REF_CHECK (NODE)))
3428 /* True for an OMP_ATOMIC that has dependent parameters. These are stored
3429 as an expr in operand 1, and integer_zero_node in operand 0. */
3430 #define OMP_ATOMIC_DEPENDENT_P(NODE) \
3431 (TREE_CODE (TREE_OPERAND (OMP_ATOMIC_CHECK (NODE), 0)) == INTEGER_CST)
3433 /* Used while gimplifying continue statements bound to OMP_FOR nodes. */
3434 #define OMP_FOR_GIMPLIFYING_P(NODE) \
3435 (TREE_LANG_FLAG_0 (OMP_FOR_CHECK (NODE)))
3437 /* A language-specific token attached to the OpenMP data clauses to
3438 hold code (or code fragments) related to ctors, dtors, and op=.
3439 See semantics.c for details. */
3440 #define CP_OMP_CLAUSE_INFO(NODE) \
3441 TREE_TYPE (OMP_CLAUSE_RANGE_CHECK (NODE, OMP_CLAUSE_PRIVATE, \
3442 OMP_CLAUSE_COPYPRIVATE))
3444 /* These macros provide convenient access to the various _STMT nodes
3445 created when parsing template declarations. */
3446 #define TRY_STMTS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 0)
3447 #define TRY_HANDLERS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 1)
3449 #define EH_SPEC_STMTS(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 0)
3450 #define EH_SPEC_RAISES(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 1)
3452 #define USING_STMT_NAMESPACE(NODE) TREE_OPERAND (USING_STMT_CHECK (NODE), 0)
3454 /* Nonzero if this try block is a function try block. */
3455 #define FN_TRY_BLOCK_P(NODE) TREE_LANG_FLAG_3 (TRY_BLOCK_CHECK (NODE))
3456 #define HANDLER_PARMS(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 0)
3457 #define HANDLER_BODY(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 1)
3458 #define HANDLER_TYPE(NODE) TREE_TYPE (HANDLER_CHECK (NODE))
3460 /* CLEANUP_STMT accessors. The statement(s) covered, the cleanup to run
3461 and the VAR_DECL for which this cleanup exists. */
3462 #define CLEANUP_BODY(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 0)
3463 #define CLEANUP_EXPR(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 1)
3464 #define CLEANUP_DECL(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 2)
3466 /* IF_STMT accessors. These give access to the condition of the if
3467 statement, the then block of the if statement, and the else block
3468 of the if statement if it exists. */
3469 #define IF_COND(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 0)
3470 #define THEN_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 1)
3471 #define ELSE_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 2)
3473 /* WHILE_STMT accessors. These give access to the condition of the
3474 while statement and the body of the while statement, respectively. */
3475 #define WHILE_COND(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 0)
3476 #define WHILE_BODY(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 1)
3478 /* DO_STMT accessors. These give access to the condition of the do
3479 statement and the body of the do statement, respectively. */
3480 #define DO_COND(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 0)
3481 #define DO_BODY(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 1)
3483 /* FOR_STMT accessors. These give access to the init statement,
3484 condition, update expression, and body of the for statement,
3486 #define FOR_INIT_STMT(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 0)
3487 #define FOR_COND(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 1)
3488 #define FOR_EXPR(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 2)
3489 #define FOR_BODY(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 3)
3491 #define SWITCH_STMT_COND(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 0)
3492 #define SWITCH_STMT_BODY(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 1)
3493 #define SWITCH_STMT_TYPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 2)
3495 /* STMT_EXPR accessor. */
3496 #define STMT_EXPR_STMT(NODE) TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0)
3498 /* EXPR_STMT accessor. This gives the expression associated with an
3499 expression statement. */
3500 #define EXPR_STMT_EXPR(NODE) TREE_OPERAND (EXPR_STMT_CHECK (NODE), 0)
3502 /* True if this TARGET_EXPR was created by build_cplus_new, and so we can
3503 discard it if it isn't useful. */
3504 #define TARGET_EXPR_IMPLICIT_P(NODE) \
3505 TREE_LANG_FLAG_0 (TARGET_EXPR_CHECK (NODE))
3507 /* True if this TARGET_EXPR is the result of list-initialization of a
3509 #define TARGET_EXPR_LIST_INIT_P(NODE) \
3510 TREE_LANG_FLAG_1 (TARGET_EXPR_CHECK (NODE))
3512 /* An enumeration of the kind of tags that C++ accepts. */
3514 none_type = 0, /* Not a tag type. */
3515 record_type, /* "struct" types. */
3516 class_type, /* "class" types. */
3517 union_type, /* "union" types. */
3518 enum_type, /* "enum" types. */
3519 typename_type /* "typename" types. */
3522 /* The various kinds of lvalues we distinguish. */
3523 enum cp_lvalue_kind_flags {
3524 clk_none = 0, /* Things that are not an lvalue. */
3525 clk_ordinary = 1, /* An ordinary lvalue. */
3526 clk_rvalueref = 2,/* An rvalue formed using an rvalue reference */
3527 clk_class = 4, /* An rvalue of class-type. */
3528 clk_bitfield = 8, /* An lvalue for a bit-field. */
3529 clk_packed = 16 /* An lvalue for a packed field. */
3532 /* This type is used for parameters and variables which hold
3533 combinations of the flags in enum cp_lvalue_kind_flags. */
3534 typedef int cp_lvalue_kind;
3536 /* Various kinds of template specialization, instantiation, etc. */
3537 typedef enum tmpl_spec_kind {
3538 tsk_none, /* Not a template at all. */
3539 tsk_invalid_member_spec, /* An explicit member template
3540 specialization, but the enclosing
3541 classes have not all been explicitly
3543 tsk_invalid_expl_inst, /* An explicit instantiation containing
3544 template parameter lists. */
3545 tsk_excessive_parms, /* A template declaration with too many
3546 template parameter lists. */
3547 tsk_insufficient_parms, /* A template declaration with too few
3549 tsk_template, /* A template declaration. */
3550 tsk_expl_spec, /* An explicit specialization. */
3551 tsk_expl_inst /* An explicit instantiation. */
3554 /* The various kinds of access. BINFO_ACCESS depends on these being
3555 two bit quantities. The numerical values are important; they are
3556 used to initialize RTTI data structures, so changing them changes
3558 typedef enum access_kind {
3559 ak_none = 0, /* Inaccessible. */
3560 ak_public = 1, /* Accessible, as a `public' thing. */
3561 ak_protected = 2, /* Accessible, as a `protected' thing. */
3562 ak_private = 3 /* Accessible, as a `private' thing. */
3565 /* The various kinds of special functions. If you add to this list,
3566 you should update special_function_p as well. */
3567 typedef enum special_function_kind {
3568 sfk_none = 0, /* Not a special function. This enumeral
3569 must have value zero; see
3570 special_function_p. */
3571 sfk_constructor, /* A constructor. */
3572 sfk_copy_constructor, /* A copy constructor. */
3573 sfk_assignment_operator, /* An assignment operator. */
3574 sfk_destructor, /* A destructor. */
3575 sfk_complete_destructor, /* A destructor for complete objects. */
3576 sfk_base_destructor, /* A destructor for base subobjects. */
3577 sfk_deleting_destructor, /* A destructor for complete objects that
3578 deletes the object after it has been
3580 sfk_conversion /* A conversion operator. */
3581 } special_function_kind;
3583 /* The various kinds of linkage. From [basic.link],
3585 A name is said to have linkage when it might denote the same
3586 object, reference, function, type, template, namespace or value
3587 as a name introduced in another scope:
3589 -- When a name has external linkage, the entity it denotes can
3590 be referred to from scopes of other translation units or from
3591 other scopes of the same translation unit.
3593 -- When a name has internal linkage, the entity it denotes can
3594 be referred to by names from other scopes in the same
3597 -- When a name has no linkage, the entity it denotes cannot be
3598 referred to by names from other scopes. */
3600 typedef enum linkage_kind {
3601 lk_none, /* No linkage. */
3602 lk_internal, /* Internal linkage. */
3603 lk_external /* External linkage. */
3606 /* Bitmask flags to control type substitution. */
3608 tf_none = 0, /* nothing special */
3609 tf_error = 1 << 0, /* give error messages */
3610 tf_warning = 1 << 1, /* give warnings too */
3611 tf_ignore_bad_quals = 1 << 2, /* ignore bad cvr qualifiers */
3612 tf_keep_type_decl = 1 << 3, /* retain typedef type decls
3613 (make_typename_type use) */
3614 tf_ptrmem_ok = 1 << 4, /* pointers to member ok (internal
3615 instantiate_type use) */
3616 tf_user = 1 << 5, /* found template must be a user template
3617 (lookup_template_class use) */
3618 tf_conv = 1 << 6, /* We are determining what kind of
3619 conversion might be permissible,
3620 not actually performing the
3622 tf_no_access_control = 1 << 7, /* Do not perform access checks, even
3623 when issuing other errors. */
3624 /* Do not instantiate classes (used by count_non_default_template_args). */
3625 tf_no_class_instantiations = 1 << 8,
3626 /* Convenient substitution flags combinations. */
3627 tf_warning_or_error = tf_warning | tf_error
3630 /* This type is used for parameters and variables which hold
3631 combinations of the flags in enum tsubst_flags. */
3632 typedef int tsubst_flags_t;
3634 /* The kind of checking we can do looking in a class hierarchy. */
3635 enum base_access_flags {
3636 ba_any = 0, /* Do not check access, allow an ambiguous base,
3637 prefer a non-virtual base */
3638 ba_unique = 1 << 0, /* Must be a unique base. */
3639 ba_check_bit = 1 << 1, /* Check access. */
3640 ba_check = ba_unique | ba_check_bit,
3641 ba_ignore_scope = 1 << 2, /* Ignore access allowed by local scope. */
3642 ba_quiet = 1 << 3 /* Do not issue error messages. */
3645 /* This type is used for parameters and variables which hold
3646 combinations of the flags in enum base_access_flags. */
3647 typedef int base_access;
3649 /* The various kinds of access check during parsing. */
3650 typedef enum deferring_kind {
3651 dk_no_deferred = 0, /* Check access immediately */
3652 dk_deferred = 1, /* Deferred check */
3653 dk_no_check = 2 /* No access check */
3656 /* The kind of base we can find, looking in a class hierarchy.
3657 Values <0 indicate we failed. */
3658 typedef enum base_kind {
3659 bk_inaccessible = -3, /* The base is inaccessible */
3660 bk_ambig = -2, /* The base is ambiguous */
3661 bk_not_base = -1, /* It is not a base */
3662 bk_same_type = 0, /* It is the same type */
3663 bk_proper_base = 1, /* It is a proper base */
3664 bk_via_virtual = 2 /* It is a proper base, but via a virtual
3665 path. This might not be the canonical
3669 /* Node for "pointer to (virtual) function".
3670 This may be distinct from ptr_type_node so gdb can distinguish them. */
3671 #define vfunc_ptr_type_node vtable_entry_type
3674 /* For building calls to `delete'. */
3675 extern GTY(()) tree integer_two_node;
3676 extern GTY(()) tree integer_three_node;
3678 /* The number of function bodies which we are currently processing.
3679 (Zero if we are at namespace scope, one inside the body of a
3680 function, two inside the body of a function in a local class, etc.) */
3681 extern int function_depth;
3685 /* Nonzero if we are parsing an unevaluated operand: an operand to
3686 sizeof, typeof, or alignof. This is a count since operands to
3687 sizeof can be nested. */
3689 extern int cp_unevaluated_operand;
3693 /* These values are used for the `STRICT' parameter to type_unification and
3694 fn_type_unification. Their meanings are described with the
3695 documentation for fn_type_unification. */
3697 typedef enum unification_kind_t {
3701 } unification_kind_t;
3705 extern int current_class_depth;
3707 /* An array of all local classes present in this translation unit, in
3708 declaration order. */
3709 extern GTY(()) VEC(tree,gc) *local_classes;
3711 /* Here's where we control how name mangling takes place. */
3713 /* Cannot use '$' up front, because this confuses gdb
3714 (names beginning with '$' are gdb-local identifiers).
3716 Note that all forms in which the '$' is significant are long enough
3717 for direct indexing (meaning that if we know there is a '$'
3718 at a particular location, we can index into the string at
3719 any other location that provides distinguishing characters). */
3721 /* Define NO_DOT_IN_LABEL in your favorite tm file if your assembler
3722 doesn't allow '.' in symbol names. */
3723 #ifndef NO_DOT_IN_LABEL
3727 #define AUTO_TEMP_NAME "_.tmp_"
3728 #define VFIELD_BASE ".vf"
3729 #define VFIELD_NAME "_vptr."
3730 #define VFIELD_NAME_FORMAT "_vptr.%s"
3732 #define ANON_AGGRNAME_FORMAT "._%d"
3734 #else /* NO_DOT_IN_LABEL */
3736 #ifndef NO_DOLLAR_IN_LABEL
3740 #define AUTO_TEMP_NAME "_$tmp_"
3741 #define VFIELD_BASE "$vf"
3742 #define VFIELD_NAME "_vptr$"
3743 #define VFIELD_NAME_FORMAT "_vptr$%s"
3744 #define ANON_AGGRNAME_FORMAT "$_%d"
3746 #else /* NO_DOLLAR_IN_LABEL */
3748 #define IN_CHARGE_NAME "__in_chrg"
3749 #define AUTO_TEMP_NAME "__tmp_"
3750 #define TEMP_NAME_P(ID_NODE) \
3751 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, \
3752 sizeof (AUTO_TEMP_NAME) - 1))
3753 #define VTABLE_NAME "__vt_"
3754 #define VTABLE_NAME_P(ID_NODE) \
3755 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VTABLE_NAME, \
3756 sizeof (VTABLE_NAME) - 1))
3757 #define VFIELD_BASE "__vfb"
3758 #define VFIELD_NAME "__vptr_"
3759 #define VFIELD_NAME_P(ID_NODE) \
3760 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, \
3761 sizeof (VFIELD_NAME) - 1))
3762 #define VFIELD_NAME_FORMAT "__vptr_%s"
3764 #define ANON_AGGRNAME_PREFIX "__anon_"
3765 #define ANON_AGGRNAME_P(ID_NODE) \
3766 (!strncmp (IDENTIFIER_POINTER (ID_NODE), ANON_AGGRNAME_PREFIX, \
3767 sizeof (ANON_AGGRNAME_PREFIX) - 1))
3768 #define ANON_AGGRNAME_FORMAT "__anon_%d"
3770 #endif /* NO_DOLLAR_IN_LABEL */
3771 #endif /* NO_DOT_IN_LABEL */
3773 #define THIS_NAME "this"
3775 #define IN_CHARGE_NAME "__in_chrg"
3777 #define VTBL_PTR_TYPE "__vtbl_ptr_type"
3778 #define VTABLE_DELTA_NAME "__delta"
3779 #define VTABLE_PFN_NAME "__pfn"
3781 #if !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL)
3783 #define VTABLE_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == 'v' \
3784 && IDENTIFIER_POINTER (ID_NODE)[2] == 't' \
3785 && IDENTIFIER_POINTER (ID_NODE)[3] == JOINER)
3787 #define TEMP_NAME_P(ID_NODE) \
3788 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, sizeof (AUTO_TEMP_NAME)-1))
3789 #define VFIELD_NAME_P(ID_NODE) \
3790 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, sizeof(VFIELD_NAME)-1))
3792 /* For anonymous aggregate types, we need some sort of name to
3793 hold on to. In practice, this should not appear, but it should
3794 not be harmful if it does. */
3795 #define ANON_AGGRNAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[0] == JOINER \
3796 && IDENTIFIER_POINTER (ID_NODE)[1] == '_')
3797 #endif /* !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) */
3800 /* Nonzero if we're done parsing and into end-of-file activities. */
3804 /* A list of namespace-scope objects which have constructors or
3805 destructors which reside in the global scope. The decl is stored
3806 in the TREE_VALUE slot and the initializer is stored in the
3807 TREE_PURPOSE slot. */
3808 extern GTY(()) tree static_aggregates;
3810 enum overload_flags { NO_SPECIAL = 0, DTOR_FLAG, TYPENAME_FLAG };
3812 /* These are uses as bits in flags passed to various functions to
3813 control their behavior. Despite the LOOKUP_ prefix, many of these
3814 do not control name lookup. ??? Functions using these flags should
3815 probably be modified to accept explicit boolean flags for the
3816 behaviors relevant to them. */
3817 /* Check for access violations. */
3818 #define LOOKUP_PROTECT (1 << 0)
3819 /* Complain if no suitable member function matching the arguments is
3821 #define LOOKUP_COMPLAIN (1 << 1)
3822 #define LOOKUP_NORMAL (LOOKUP_PROTECT | LOOKUP_COMPLAIN)
3823 /* Even if the function found by lookup is a virtual function, it
3824 should be called directly. */
3825 #define LOOKUP_NONVIRTUAL (1 << 2)
3826 /* Non-converting (i.e., "explicit") constructors are not tried. This flag
3827 indicates that we are not performing direct-initialization. */
3828 #define LOOKUP_ONLYCONVERTING (1 << 3)
3829 #define LOOKUP_IMPLICIT (LOOKUP_NORMAL | LOOKUP_ONLYCONVERTING)
3830 /* If a temporary is created, it should be created so that it lives
3831 as long as the current variable bindings; otherwise it only lives
3832 until the end of the complete-expression. It also forces
3833 direct-initialization in cases where other parts of the compiler
3834 have already generated a temporary, such as reference
3835 initialization and the catch parameter. */
3836 #define DIRECT_BIND (1 << 4)
3837 /* User-defined conversions are not permitted. (Built-in conversions
3839 #define LOOKUP_NO_CONVERSION (1 << 5)
3840 /* The user has explicitly called a destructor. (Therefore, we do
3841 not need to check that the object is non-NULL before calling the
3843 #define LOOKUP_DESTRUCTOR (1 << 6)
3844 /* Do not permit references to bind to temporaries. */
3845 #define LOOKUP_NO_TEMP_BIND (1 << 7)
3846 /* Do not accept objects, and possibly namespaces. */
3847 #define LOOKUP_PREFER_TYPES (1 << 8)
3848 /* Do not accept objects, and possibly types. */
3849 #define LOOKUP_PREFER_NAMESPACES (1 << 9)
3850 /* Accept types or namespaces. */
3851 #define LOOKUP_PREFER_BOTH (LOOKUP_PREFER_TYPES | LOOKUP_PREFER_NAMESPACES)
3852 /* Return friend declarations and un-declared builtin functions.
3853 (Normally, these entities are registered in the symbol table, but
3854 not found by lookup.) */
3855 #define LOOKUP_HIDDEN (LOOKUP_PREFER_NAMESPACES << 1)
3856 /* Prefer that the lvalue be treated as an rvalue. */
3857 #define LOOKUP_PREFER_RVALUE (LOOKUP_HIDDEN << 1)
3858 /* We're inside an init-list, so narrowing conversions are ill-formed. */
3859 #define LOOKUP_NO_NARROWING (LOOKUP_PREFER_RVALUE << 1)
3860 /* Avoid user-defined conversions for the first parameter of a copy
3862 #define LOOKUP_NO_COPY_CTOR_CONVERSION (LOOKUP_NO_NARROWING << 1)
3863 /* This is the first parameter of a copy constructor. */
3864 #define LOOKUP_COPY_PARM (LOOKUP_NO_COPY_CTOR_CONVERSION << 1)
3866 #define LOOKUP_NAMESPACES_ONLY(F) \
3867 (((F) & LOOKUP_PREFER_NAMESPACES) && !((F) & LOOKUP_PREFER_TYPES))
3868 #define LOOKUP_TYPES_ONLY(F) \
3869 (!((F) & LOOKUP_PREFER_NAMESPACES) && ((F) & LOOKUP_PREFER_TYPES))
3870 #define LOOKUP_QUALIFIERS_ONLY(F) ((F) & LOOKUP_PREFER_BOTH)
3873 /* These flags are used by the conversion code.
3874 CONV_IMPLICIT : Perform implicit conversions (standard and user-defined).
3875 CONV_STATIC : Perform the explicit conversions for static_cast.
3876 CONV_CONST : Perform the explicit conversions for const_cast.
3877 CONV_REINTERPRET: Perform the explicit conversions for reinterpret_cast.
3878 CONV_PRIVATE : Perform upcasts to private bases.
3879 CONV_FORCE_TEMP : Require a new temporary when converting to the same
3882 #define CONV_IMPLICIT 1
3883 #define CONV_STATIC 2
3884 #define CONV_CONST 4
3885 #define CONV_REINTERPRET 8
3886 #define CONV_PRIVATE 16
3887 /* #define CONV_NONCONVERTING 32 */
3888 #define CONV_FORCE_TEMP 64
3889 #define CONV_OLD_CONVERT (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
3891 #define CONV_C_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
3892 | CONV_REINTERPRET | CONV_PRIVATE | CONV_FORCE_TEMP)
3894 /* Used by build_expr_type_conversion to indicate which types are
3895 acceptable as arguments to the expression under consideration. */
3897 #define WANT_INT 1 /* integer types, including bool */
3898 #define WANT_FLOAT 2 /* floating point types */
3899 #define WANT_ENUM 4 /* enumerated types */
3900 #define WANT_POINTER 8 /* pointer types */
3901 #define WANT_NULL 16 /* null pointer constant */
3902 #define WANT_VECTOR 32 /* vector types */
3903 #define WANT_ARITH (WANT_INT | WANT_FLOAT | WANT_VECTOR)
3905 /* Used with comptypes, and related functions, to guide type
3908 #define COMPARE_STRICT 0 /* Just check if the types are the
3910 #define COMPARE_BASE 1 /* Check to see if the second type is
3911 derived from the first. */
3912 #define COMPARE_DERIVED 2 /* Like COMPARE_BASE, but in
3914 #define COMPARE_REDECLARATION 4 /* The comparison is being done when
3915 another declaration of an existing
3917 #define COMPARE_STRUCTURAL 8 /* The comparison is intended to be
3918 structural. The actual comparison
3919 will be identical to
3922 /* Used with push_overloaded_decl. */
3923 #define PUSH_GLOBAL 0 /* Push the DECL into namespace scope,
3924 regardless of the current scope. */
3925 #define PUSH_LOCAL 1 /* Push the DECL into the current
3927 #define PUSH_USING 2 /* We are pushing this DECL as the
3928 result of a using declaration. */
3930 /* Used with start function. */
3931 #define SF_DEFAULT 0 /* No flags. */
3932 #define SF_PRE_PARSED 1 /* The function declaration has
3933 already been parsed. */
3934 #define SF_INCLASS_INLINE 2 /* The function is an inline, defined
3935 in the class body. */
3937 /* Used with start_decl's initialized parameter. */
3938 #define SD_UNINITIALIZED 0
3939 #define SD_INITIALIZED 1
3940 #define SD_DEFAULTED 2
3941 #define SD_DELETED 3
3943 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, or if TYPE2
3944 is derived from TYPE1, or if TYPE2 is a pointer (reference) to a
3945 class derived from the type pointed to (referred to) by TYPE1. */
3946 #define same_or_base_type_p(TYPE1, TYPE2) \
3947 comptypes ((TYPE1), (TYPE2), COMPARE_BASE)
3949 /* These macros are used to access a TEMPLATE_PARM_INDEX. */
3950 #define TEMPLATE_PARM_INDEX_CAST(NODE) \
3951 ((template_parm_index*)TEMPLATE_PARM_INDEX_CHECK (NODE))
3952 #define TEMPLATE_PARM_IDX(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->index)
3953 #define TEMPLATE_PARM_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->level)
3954 #define TEMPLATE_PARM_DESCENDANTS(NODE) (TREE_CHAIN (NODE))
3955 #define TEMPLATE_PARM_ORIG_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->orig_level)
3956 #define TEMPLATE_PARM_DECL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->decl)
3957 #define TEMPLATE_PARM_PARAMETER_PACK(NODE) \
3958 (TREE_LANG_FLAG_0 (TEMPLATE_PARM_INDEX_CHECK (NODE)))
3960 /* These macros are for accessing the fields of TEMPLATE_TYPE_PARM,
3961 TEMPLATE_TEMPLATE_PARM and BOUND_TEMPLATE_TEMPLATE_PARM nodes. */
3962 #define TEMPLATE_TYPE_PARM_INDEX(NODE) \
3963 (TREE_CHECK3 ((NODE), TEMPLATE_TYPE_PARM, TEMPLATE_TEMPLATE_PARM, \
3964 BOUND_TEMPLATE_TEMPLATE_PARM))->type.values
3965 #define TEMPLATE_TYPE_IDX(NODE) \
3966 (TEMPLATE_PARM_IDX (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3967 #define TEMPLATE_TYPE_LEVEL(NODE) \
3968 (TEMPLATE_PARM_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3969 #define TEMPLATE_TYPE_ORIG_LEVEL(NODE) \
3970 (TEMPLATE_PARM_ORIG_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3971 #define TEMPLATE_TYPE_DECL(NODE) \
3972 (TEMPLATE_PARM_DECL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3973 #define TEMPLATE_TYPE_PARAMETER_PACK(NODE) \
3974 (TEMPLATE_PARM_PARAMETER_PACK (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3976 /* These constants can used as bit flags in the process of tree formatting.
3978 TFF_PLAIN_IDENTIFIER: unqualified part of a name.
3979 TFF_SCOPE: include the class and namespace scope of the name.
3980 TFF_CHASE_TYPEDEF: print the original type-id instead of the typedef-name.
3981 TFF_DECL_SPECIFIERS: print decl-specifiers.
3982 TFF_CLASS_KEY_OR_ENUM: precede a class-type name (resp. enum name) with
3983 a class-key (resp. `enum').
3984 TFF_RETURN_TYPE: include function return type.
3985 TFF_FUNCTION_DEFAULT_ARGUMENTS: include function default parameter values.
3986 TFF_EXCEPTION_SPECIFICATION: show function exception specification.
3987 TFF_TEMPLATE_HEADER: show the template<...> header in a
3988 template-declaration.
3989 TFF_TEMPLATE_NAME: show only template-name.
3990 TFF_EXPR_IN_PARENS: parenthesize expressions.
3991 TFF_NO_FUNCTION_ARGUMENTS: don't show function arguments.
3992 TFF_UNQUALIFIED_NAME: do not print the qualifying scope of the
3994 TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS: do not omit template arguments
3995 identical to their defaults. */
3997 #define TFF_PLAIN_IDENTIFIER (0)
3998 #define TFF_SCOPE (1)
3999 #define TFF_CHASE_TYPEDEF (1 << 1)
4000 #define TFF_DECL_SPECIFIERS (1 << 2)
4001 #define TFF_CLASS_KEY_OR_ENUM (1 << 3)
4002 #define TFF_RETURN_TYPE (1 << 4)
4003 #define TFF_FUNCTION_DEFAULT_ARGUMENTS (1 << 5)
4004 #define TFF_EXCEPTION_SPECIFICATION (1 << 6)
4005 #define TFF_TEMPLATE_HEADER (1 << 7)
4006 #define TFF_TEMPLATE_NAME (1 << 8)
4007 #define TFF_EXPR_IN_PARENS (1 << 9)
4008 #define TFF_NO_FUNCTION_ARGUMENTS (1 << 10)
4009 #define TFF_UNQUALIFIED_NAME (1 << 11)
4010 #define TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS (1 << 12)
4012 /* Returns the TEMPLATE_DECL associated to a TEMPLATE_TEMPLATE_PARM
4014 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_DECL(NODE) \
4015 ((TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM) \
4016 ? TYPE_TI_TEMPLATE (NODE) \
4021 extern void init_reswords (void);
4023 typedef struct GTY(()) operator_name_info_t {
4024 /* The IDENTIFIER_NODE for the operator. */
4026 /* The name of the operator. */
4028 /* The mangled name of the operator. */
4029 const char *mangled_name;
4030 /* The arity of the operator. */
4032 } operator_name_info_t;
4034 /* A mapping from tree codes to operator name information. */
4035 extern GTY(()) operator_name_info_t operator_name_info
4036 [(int) MAX_TREE_CODES];
4037 /* Similar, but for assignment operators. */
4038 extern GTY(()) operator_name_info_t assignment_operator_name_info
4039 [(int) MAX_TREE_CODES];
4041 /* A type-qualifier, or bitmask therefore, using the TYPE_QUAL
4044 typedef int cp_cv_quals;
4046 /* A storage class. */
4048 typedef enum cp_storage_class {
4049 /* sc_none must be zero so that zeroing a cp_decl_specifier_seq
4050 sets the storage_class field to sc_none. */
4059 /* An individual decl-specifier. */
4061 typedef enum cp_decl_spec {
4063 ds_signed = ds_first,
4080 /* A decl-specifier-seq. */
4082 typedef struct cp_decl_specifier_seq {
4083 /* The number of times each of the keywords has been seen. */
4084 unsigned specs[(int) ds_last];
4085 /* The primary type, if any, given by the decl-specifier-seq.
4086 Modifiers, like "short", "const", and "unsigned" are not
4087 reflected here. This field will be a TYPE, unless a typedef-name
4088 was used, in which case it will be a TYPE_DECL. */
4090 /* The location of the primary type. Mainly used for error
4092 location_t type_location;
4093 /* The attributes, if any, provided with the specifier sequence. */
4095 /* If non-NULL, a built-in type that the user attempted to redefine
4096 to some other type. */
4097 tree redefined_builtin_type;
4098 /* The storage class specified -- or sc_none if no storage class was
4099 explicitly specified. */
4100 cp_storage_class storage_class;
4101 /* True iff TYPE_SPEC indicates a user-defined type. */
4102 BOOL_BITFIELD user_defined_type_p : 1;
4103 /* True iff multiple types were (erroneously) specified for this
4104 decl-specifier-seq. */
4105 BOOL_BITFIELD multiple_types_p : 1;
4106 /* True iff multiple storage classes were (erroneously) specified
4107 for this decl-specifier-seq or a combination of a storage class
4108 with a typedef specifier. */
4109 BOOL_BITFIELD conflicting_specifiers_p : 1;
4110 /* True iff at least one decl-specifier was found. */
4111 BOOL_BITFIELD any_specifiers_p : 1;
4112 /* True iff "int" was explicitly provided. */
4113 BOOL_BITFIELD explicit_int_p : 1;
4114 /* True iff "char" was explicitly provided. */
4115 BOOL_BITFIELD explicit_char_p : 1;
4116 } cp_decl_specifier_seq;
4118 /* The various kinds of declarators. */
4120 typedef enum cp_declarator_kind {
4128 } cp_declarator_kind;
4132 typedef struct cp_declarator cp_declarator;
4134 typedef struct cp_parameter_declarator cp_parameter_declarator;
4136 /* A parameter, before it has been semantically analyzed. */
4137 struct cp_parameter_declarator {
4138 /* The next parameter, or NULL_TREE if none. */
4139 cp_parameter_declarator *next;
4140 /* The decl-specifiers-seq for the parameter. */
4141 cp_decl_specifier_seq decl_specifiers;
4142 /* The declarator for the parameter. */
4143 cp_declarator *declarator;
4144 /* The default-argument expression, or NULL_TREE, if none. */
4145 tree default_argument;
4146 /* True iff this is the first parameter in the list and the
4147 parameter sequence ends with an ellipsis. */
4152 struct cp_declarator {
4153 /* The kind of declarator. */
4154 ENUM_BITFIELD (cp_declarator_kind) kind : 4;
4155 /* Whether we parsed an ellipsis (`...') just before the declarator,
4156 to indicate this is a parameter pack. */
4157 BOOL_BITFIELD parameter_pack_p : 1;
4158 /* Attributes that apply to this declarator. */
4160 /* For all but cdk_id and cdk_error, the contained declarator. For
4161 cdk_id and cdk_error, guaranteed to be NULL. */
4162 cp_declarator *declarator;
4163 location_t id_loc; /* Currently only set for cdk_id and cdk_function. */
4165 /* For identifiers. */
4167 /* If non-NULL, the qualifying scope (a NAMESPACE_DECL or
4168 *_TYPE) for this identifier. */
4169 tree qualifying_scope;
4170 /* The unqualified name of the entity -- an IDENTIFIER_NODE,
4171 BIT_NOT_EXPR, or TEMPLATE_ID_EXPR. */
4172 tree unqualified_name;
4173 /* If this is the name of a function, what kind of special
4174 function (if any). */
4175 special_function_kind sfk;
4177 /* For functions. */
4179 /* The parameters to the function as a TREE_LIST of decl/default. */
4181 /* The cv-qualifiers for the function. */
4182 cp_cv_quals qualifiers;
4183 /* The exception-specification for the function. */
4184 tree exception_specification;
4185 /* The late-specified return type, if any. */
4186 tree late_return_type;
4190 /* The bounds to the array. */
4193 /* For cdk_pointer and cdk_ptrmem. */
4195 /* The cv-qualifiers for the pointer. */
4196 cp_cv_quals qualifiers;
4197 /* For cdk_ptrmem, the class type containing the member. */
4200 /* For cdk_reference */
4202 /* The cv-qualifiers for the reference. These qualifiers are
4203 only used to diagnose ill-formed code. */
4204 cp_cv_quals qualifiers;
4205 /* Whether this is an rvalue reference */
4211 /* A level of template instantiation. */
4212 struct GTY(()) tinst_level {
4213 /* The immediately deeper level in the chain. */
4214 struct tinst_level *next;
4216 /* The original node. Can be either a DECL (for a function or static
4217 data member) or a TYPE (for a class), depending on what we were
4218 asked to instantiate. */
4221 /* The location where the template is instantiated. */
4224 /* True if the location is in a system header. */
4225 bool in_system_header_p;
4228 /* A parameter list indicating for a function with no parameters,
4229 e.g "int f(void)". */
4230 extern cp_parameter_declarator *no_parameters;
4232 /* True if we saw "#pragma GCC java_exceptions". */
4233 extern bool pragma_java_exceptions;
4236 extern bool check_dtor_name (tree, tree);
4238 extern tree build_conditional_expr (tree, tree, tree,
4240 extern tree build_addr_func (tree);
4241 extern tree build_call_a (tree, int, tree*);
4242 extern tree build_call_n (tree, int, ...);
4243 extern bool null_ptr_cst_p (tree);
4244 extern bool sufficient_parms_p (const_tree);
4245 extern tree type_decays_to (tree);
4246 extern tree build_user_type_conversion (tree, tree, int);
4247 extern tree build_new_function_call (tree, VEC(tree,gc) **, bool,
4249 extern tree build_operator_new_call (tree, VEC(tree,gc) **, tree *,
4251 extern tree build_new_method_call (tree, tree, VEC(tree,gc) **,
4254 extern tree build_special_member_call (tree, tree, VEC(tree,gc) **,
4255 tree, int, tsubst_flags_t);
4256 extern tree build_new_op (enum tree_code, int, tree,
4259 extern tree build_op_call (tree, VEC(tree,gc) **,
4261 extern tree build_op_delete_call (enum tree_code, tree, tree, bool, tree, tree);
4262 extern bool can_convert (tree, tree);
4263 extern bool can_convert_arg (tree, tree, tree, int);
4264 extern bool can_convert_arg_bad (tree, tree, tree, int);
4265 extern bool enforce_access (tree, tree, tree);
4266 extern tree convert_default_arg (tree, tree, tree, int);
4267 extern tree convert_arg_to_ellipsis (tree);
4268 extern tree build_x_va_arg (tree, tree);
4269 extern tree cxx_type_promotes_to (tree);
4270 extern tree type_passed_as (tree);
4271 extern tree convert_for_arg_passing (tree, tree);
4272 extern bool is_properly_derived_from (tree, tree);
4273 extern tree set_up_extended_ref_temp (tree, tree, tree *, tree *);
4274 extern tree initialize_reference (tree, tree, tree, tree *);
4275 extern tree make_temporary_var_for_ref_to_temp (tree, tree);
4276 extern tree strip_top_quals (tree);
4277 extern bool reference_related_p (tree, tree);
4278 extern tree perform_implicit_conversion (tree, tree, tsubst_flags_t);
4279 extern tree perform_implicit_conversion_flags (tree, tree, tsubst_flags_t, int);
4280 extern tree perform_direct_initialization_if_possible (tree, tree, bool,
4282 extern tree in_charge_arg_for_name (tree);
4283 extern tree build_cxx_call (tree, int, tree *);
4284 extern bool is_std_init_list (tree);
4285 extern bool is_list_ctor (tree);
4286 #ifdef ENABLE_CHECKING
4287 extern void validate_conversion_obstack (void);
4288 #endif /* ENABLE_CHECKING */
4291 extern tree build_vfield_ref (tree, tree);
4292 extern tree build_base_path (enum tree_code, tree,
4294 extern tree convert_to_base (tree, tree, bool, bool);
4295 extern tree convert_to_base_statically (tree, tree);
4296 extern tree build_vtbl_ref (tree, tree);
4297 extern tree build_vfn_ref (tree, tree);
4298 extern tree get_vtable_decl (tree, int);
4299 extern void resort_type_method_vec (void *, void *,
4300 gt_pointer_operator, void *);
4301 extern bool add_method (tree, tree, tree);
4302 extern bool currently_open_class (tree);
4303 extern tree currently_open_derived_class (tree);
4304 extern tree finish_struct (tree, tree);
4305 extern void finish_struct_1 (tree);
4306 extern int resolves_to_fixed_type_p (tree, int *);
4307 extern void init_class_processing (void);
4308 extern int is_empty_class (tree);
4309 extern bool is_really_empty_class (tree);
4310 extern void pushclass (tree);
4311 extern void popclass (void);
4312 extern void push_nested_class (tree);
4313 extern void pop_nested_class (void);
4314 extern int current_lang_depth (void);
4315 extern void push_lang_context (tree);
4316 extern void pop_lang_context (void);
4317 extern tree instantiate_type (tree, tree, tsubst_flags_t);
4318 extern void print_class_statistics (void);
4319 extern void build_self_reference (void);
4320 extern int same_signature_p (const_tree, const_tree);
4321 extern void maybe_add_class_template_decl_list (tree, tree, int);
4322 extern void unreverse_member_declarations (tree);
4323 extern void invalidate_class_lookup_cache (void);
4324 extern void maybe_note_name_used_in_class (tree, tree);
4325 extern void note_name_declared_in_class (tree, tree);
4326 extern tree get_vtbl_decl_for_binfo (tree);
4327 extern void debug_class (tree);
4328 extern void debug_thunks (tree);
4329 extern tree cp_fold_obj_type_ref (tree, tree);
4330 extern void set_linkage_according_to_type (tree, tree);
4331 extern void determine_key_method (tree);
4332 extern void check_for_override (tree, tree);
4333 extern void push_class_stack (void);
4334 extern void pop_class_stack (void);
4335 extern bool type_has_user_nondefault_constructor (tree);
4336 extern bool type_has_user_provided_constructor (tree);
4337 extern bool type_has_user_provided_default_constructor (tree);
4338 extern bool defaultable_fn_p (tree);
4339 extern void fixup_type_variants (tree);
4340 extern tree* decl_cloned_function_p (const_tree, bool);
4341 extern void clone_function_decl (tree, int);
4342 extern void adjust_clone_args (tree);
4345 extern tree convert_to_reference (tree, tree, int, int, tree);
4346 extern tree convert_from_reference (tree);
4347 extern tree force_rvalue (tree);
4348 extern tree ocp_convert (tree, tree, int, int);
4349 extern tree cp_convert (tree, tree);
4350 extern tree cp_convert_and_check (tree, tree);
4351 extern tree cp_fold_convert (tree, tree);
4352 extern tree convert_to_void (tree, const char */*implicit context*/,
4354 extern tree convert_force (tree, tree, int);
4355 extern tree build_expr_type_conversion (int, tree, bool);
4356 extern tree type_promotes_to (tree);
4357 extern tree perform_qualification_conversions (tree, tree);
4359 /* in name-lookup.c */
4360 extern tree get_anonymous_namespace_name (void);
4361 extern tree pushdecl (tree);
4362 extern tree pushdecl_maybe_friend (tree, bool);
4363 extern void maybe_push_cleanup_level (tree);
4364 extern tree pushtag (tree, tree, tag_scope);
4365 extern tree make_anon_name (void);
4366 extern tree pushdecl_top_level_maybe_friend (tree, bool);
4367 extern tree pushdecl_top_level_and_finish (tree, tree);
4368 extern tree check_for_out_of_scope_variable (tree);
4369 extern void print_other_binding_stack (struct cp_binding_level *);
4370 extern tree maybe_push_decl (tree);
4373 extern tree poplevel (int, int, int);
4374 extern void cxx_init_decl_processing (void);
4375 enum cp_tree_node_structure_enum cp_tree_node_structure
4376 (union lang_tree_node *);
4377 extern void finish_scope (void);
4378 extern void push_switch (tree);
4379 extern void pop_switch (void);
4380 extern int decls_match (tree, tree);
4381 extern tree duplicate_decls (tree, tree, bool);
4382 extern tree declare_local_label (tree);
4383 extern tree define_label (location_t, tree);
4384 extern void check_goto (tree);
4385 extern bool check_omp_return (void);
4386 extern tree make_typename_type (tree, tree, enum tag_types, tsubst_flags_t);
4387 extern tree make_unbound_class_template (tree, tree, tree, tsubst_flags_t);
4388 extern tree build_library_fn_ptr (const char *, tree);
4389 extern tree build_cp_library_fn_ptr (const char *, tree);
4390 extern tree push_library_fn (tree, tree, tree);
4391 extern tree push_void_library_fn (tree, tree);
4392 extern tree push_throw_library_fn (tree, tree);
4393 extern tree check_tag_decl (cp_decl_specifier_seq *);
4394 extern tree shadow_tag (cp_decl_specifier_seq *);
4395 extern tree groktypename (cp_decl_specifier_seq *, const cp_declarator *, bool);
4396 extern tree start_decl (const cp_declarator *, cp_decl_specifier_seq *, int, tree, tree, tree *);
4397 extern void start_decl_1 (tree, bool);
4398 extern bool check_array_initializer (tree, tree, tree);
4399 extern void cp_finish_decl (tree, tree, bool, tree, int);
4400 extern int cp_complete_array_type (tree *, tree, bool);
4401 extern tree build_ptrmemfunc_type (tree);
4402 extern tree build_ptrmem_type (tree, tree);
4403 /* the grokdeclarator prototype is in decl.h */
4404 extern tree build_this_parm (tree, cp_cv_quals);
4405 extern int copy_fn_p (const_tree);
4406 extern bool move_fn_p (const_tree);
4407 extern tree get_scope_of_declarator (const cp_declarator *);
4408 extern void grok_special_member_properties (tree);
4409 extern int grok_ctor_properties (const_tree, const_tree);
4410 extern bool grok_op_properties (tree, bool);
4411 extern tree xref_tag (enum tag_types, tree, tag_scope, bool);
4412 extern tree xref_tag_from_type (tree, tree, tag_scope);
4413 extern bool xref_basetypes (tree, tree);
4414 extern tree start_enum (tree, tree, bool);
4415 extern void finish_enum (tree);
4416 extern void build_enumerator (tree, tree, tree);
4417 extern tree lookup_enumerator (tree, tree);
4418 extern void start_preparsed_function (tree, tree, int);
4419 extern int start_function (cp_decl_specifier_seq *, const cp_declarator *, tree);
4420 extern tree begin_function_body (void);
4421 extern void finish_function_body (tree);
4422 extern tree outer_curly_brace_block (tree);
4423 extern tree finish_function (int);
4424 extern tree grokmethod (cp_decl_specifier_seq *, const cp_declarator *, tree);
4425 extern void maybe_register_incomplete_var (tree);
4426 extern void maybe_commonize_var (tree);
4427 extern void complete_vars (tree);
4428 extern void finish_stmt (void);
4429 extern void revert_static_member_fn (tree);
4430 extern void fixup_anonymous_aggr (tree);
4431 extern int check_static_variable_definition (tree, tree);
4432 extern tree compute_array_index_type (tree, tree);
4433 extern tree check_default_argument (tree, tree);
4434 typedef int (*walk_namespaces_fn) (tree, void *);
4435 extern int walk_namespaces (walk_namespaces_fn,
4437 extern int wrapup_globals_for_namespace (tree, void *);
4438 extern tree create_implicit_typedef (tree, tree);
4439 extern int local_variable_p (const_tree);
4440 extern tree register_dtor_fn (tree);
4441 extern tmpl_spec_kind current_tmpl_spec_kind (int);
4442 extern tree cp_fname_init (const char *, tree *);
4443 extern tree cxx_builtin_function (tree decl);
4444 extern tree cxx_builtin_function_ext_scope (tree decl);
4445 extern tree check_elaborated_type_specifier (enum tag_types, tree, bool);
4446 extern void warn_extern_redeclared_static (tree, tree);
4447 extern tree cxx_comdat_group (tree);
4448 extern bool cp_missing_noreturn_ok_p (tree);
4449 extern void initialize_artificial_var (tree, tree);
4450 extern tree check_var_type (tree, tree);
4451 extern tree reshape_init (tree, tree);
4453 extern bool defer_mark_used_calls;
4454 extern GTY(()) VEC(tree, gc) *deferred_mark_used_calls;
4455 extern tree finish_case_label (location_t, tree, tree);
4456 extern tree cxx_maybe_build_cleanup (tree);
4459 extern bool check_java_method (tree);
4460 extern tree build_memfn_type (tree, tree, cp_cv_quals);
4461 extern void maybe_retrofit_in_chrg (tree);
4462 extern void maybe_make_one_only (tree);
4463 extern bool vague_linkage_fn_p (tree);
4464 extern void grokclassfn (tree, tree,
4465 enum overload_flags);
4466 extern tree grok_array_decl (tree, tree);
4467 extern tree delete_sanity (tree, tree, bool, int);
4468 extern tree check_classfn (tree, tree, tree);
4469 extern void check_member_template (tree);
4470 extern tree grokfield (const cp_declarator *, cp_decl_specifier_seq *,
4471 tree, bool, tree, tree);
4472 extern tree grokbitfield (const cp_declarator *, cp_decl_specifier_seq *,
4474 extern tree cp_reconstruct_complex_type (tree, tree);
4475 extern void cplus_decl_attributes (tree *, tree, int);
4476 extern void finish_anon_union (tree);
4477 extern void cp_write_global_declarations (void);
4478 extern tree coerce_new_type (tree);
4479 extern tree coerce_delete_type (tree);
4480 extern void comdat_linkage (tree);
4481 extern void determine_visibility (tree);
4482 extern void constrain_class_visibility (tree);
4483 extern void import_export_decl (tree);
4484 extern tree build_cleanup (tree);
4485 extern tree build_offset_ref_call_from_tree (tree, VEC(tree,gc) **);
4486 extern void check_default_args (tree);
4487 extern void mark_used (tree);
4488 extern void finish_static_data_member_decl (tree, tree, bool, tree, int);
4489 extern tree cp_build_parm_decl (tree, tree);
4490 extern tree get_guard (tree);
4491 extern tree get_guard_cond (tree);
4492 extern tree set_guard (tree);
4493 extern tree cxx_callgraph_analyze_expr (tree *, int *);
4494 extern void mark_needed (tree);
4495 extern bool decl_needed_p (tree);
4496 extern void note_vague_linkage_fn (tree);
4497 extern tree build_artificial_parm (tree, tree);
4498 extern bool possibly_inlined_p (tree);
4499 extern int parm_index (tree);
4502 extern void init_error (void);
4503 extern const char *type_as_string (tree, int);
4504 extern const char *type_as_string_translate (tree, int);
4505 extern const char *decl_as_string (tree, int);
4506 extern const char *decl_as_string_translate (tree, int);
4507 extern const char *expr_as_string (tree, int);
4508 extern const char *lang_decl_name (tree, int, bool);
4509 extern const char *language_to_string (enum languages);
4510 extern const char *class_key_or_enum_as_string (tree);
4511 extern void print_instantiation_context (void);
4512 extern void maybe_warn_variadic_templates (void);
4513 extern void maybe_warn_cpp0x (const char *);
4514 extern bool pedwarn_cxx98 (location_t, int, const char *, ...) ATTRIBUTE_GCC_CXXDIAG(3,4);
4517 extern void init_exception_processing (void);
4518 extern tree expand_start_catch_block (tree);
4519 extern void expand_end_catch_block (void);
4520 extern tree build_exc_ptr (void);
4521 extern tree build_throw (tree);
4522 extern int nothrow_libfn_p (const_tree);
4523 extern void check_handlers (tree);
4524 extern void choose_personality_routine (enum languages);
4525 extern tree eh_type_info (tree);
4526 extern tree begin_eh_spec_block (void);
4527 extern void finish_eh_spec_block (tree, tree);
4528 extern tree build_eh_type_type (tree);
4531 extern tree cplus_expand_constant (tree);
4534 extern int is_friend (tree, tree);
4535 extern void make_friend_class (tree, tree, bool);
4536 extern void add_friend (tree, tree, bool);
4537 extern tree do_friend (tree, tree, tree, tree, enum overload_flags, bool);
4540 extern tree expand_member_init (tree);
4541 extern void emit_mem_initializers (tree);
4542 extern tree build_aggr_init (tree, tree, int,
4544 extern int is_class_type (tree, int);
4545 extern tree get_type_value (tree);
4546 extern tree build_zero_init (tree, tree, bool);
4547 extern tree build_value_init (tree);
4548 extern tree build_value_init_noctor (tree);
4549 extern tree build_offset_ref (tree, tree, bool);
4550 extern tree build_new (VEC(tree,gc) **, tree, tree,
4551 VEC(tree,gc) **, int,
4553 extern tree build_vec_init (tree, tree, tree, bool, int,
4555 extern tree build_delete (tree, tree,
4556 special_function_kind,
4558 extern void push_base_cleanups (void);
4559 extern tree build_vec_delete (tree, tree,
4560 special_function_kind, int);
4561 extern tree create_temporary_var (tree);
4562 extern void initialize_vtbl_ptrs (tree);
4563 extern tree build_java_class_ref (tree);
4564 extern tree integral_constant_value (tree);
4567 extern void cxx_dup_lang_specific_decl (tree);
4568 extern void yyungetc (int, int);
4570 extern tree unqualified_name_lookup_error (tree);
4571 extern tree unqualified_fn_lookup_error (tree);
4572 extern tree build_lang_decl (enum tree_code, tree, tree);
4573 extern void retrofit_lang_decl (tree);
4574 extern tree copy_decl (tree);
4575 extern tree copy_type (tree);
4576 extern tree cxx_make_type (enum tree_code);
4577 extern tree make_class_type (enum tree_code);
4578 extern bool cxx_init (void);
4579 extern void cxx_finish (void);
4580 extern bool in_main_input_context (void);
4583 extern void init_method (void);
4584 extern tree make_thunk (tree, bool, tree, tree);
4585 extern void finish_thunk (tree);
4586 extern void use_thunk (tree, bool);
4587 extern void synthesize_method (tree);
4588 extern tree lazily_declare_fn (special_function_kind,
4590 extern tree skip_artificial_parms_for (const_tree, tree);
4591 extern int num_artificial_parms_for (const_tree);
4592 extern tree make_alias_for (tree, tree);
4593 extern tree locate_copy (tree, void *);
4594 extern tree locate_ctor (tree, void *);
4595 extern tree locate_dtor (tree, void *);
4598 extern bool maybe_clone_body (tree);
4601 extern bool check_template_shadow (tree);
4602 extern tree get_innermost_template_args (tree, int);
4603 extern void maybe_begin_member_template_processing (tree);
4604 extern void maybe_end_member_template_processing (void);
4605 extern tree finish_member_template_decl (tree);
4606 extern void begin_template_parm_list (void);
4607 extern bool begin_specialization (void);
4608 extern void reset_specialization (void);
4609 extern void end_specialization (void);
4610 extern void begin_explicit_instantiation (void);
4611 extern void end_explicit_instantiation (void);
4612 extern tree check_explicit_specialization (tree, tree, int, int);
4613 extern tree make_auto (void);
4614 extern tree do_auto_deduction (tree, tree, tree);
4615 extern tree type_uses_auto (tree);
4616 extern void append_type_to_template_for_access_check (tree, tree, tree);
4617 extern tree splice_late_return_type (tree, tree);
4618 extern bool is_auto (const_tree);
4619 extern tree process_template_parm (tree, location_t, tree,
4621 extern tree end_template_parm_list (tree);
4622 extern void end_template_decl (void);
4623 extern bool check_default_tmpl_args (tree, tree, int, int, int);
4624 extern tree push_template_decl (tree);
4625 extern tree push_template_decl_real (tree, bool);
4626 extern bool redeclare_class_template (tree, tree);
4627 extern tree lookup_template_class (tree, tree, tree, tree,
4628 int, tsubst_flags_t);
4629 extern tree lookup_template_function (tree, tree);
4630 extern int uses_template_parms (tree);
4631 extern int uses_template_parms_level (tree, int);
4632 extern tree instantiate_class_template (tree);
4633 extern tree instantiate_template (tree, tree, tsubst_flags_t);
4634 extern int fn_type_unification (tree, tree, tree,
4635 const tree *, unsigned int,
4636 tree, unification_kind_t, int);
4637 extern void mark_decl_instantiated (tree, int);
4638 extern int more_specialized_fn (tree, tree, int);
4639 extern void do_decl_instantiation (tree, tree);
4640 extern void do_type_instantiation (tree, tree, tsubst_flags_t);
4641 extern bool always_instantiate_p (tree);
4642 extern tree instantiate_decl (tree, int, bool);
4643 extern int comp_template_parms (const_tree, const_tree);
4644 extern bool uses_parameter_packs (tree);
4645 extern bool template_parameter_pack_p (const_tree);
4646 extern tree make_pack_expansion (tree);
4647 extern bool check_for_bare_parameter_packs (tree);
4648 extern tree get_template_info (const_tree);
4649 extern tree get_types_needing_access_check (tree);
4650 extern int template_class_depth (tree);
4651 extern int is_specialization_of (tree, tree);
4652 extern bool is_specialization_of_friend (tree, tree);
4653 extern tree get_pattern_parm (tree, tree);
4654 extern int comp_template_args (tree, tree);
4655 extern tree maybe_process_partial_specialization (tree);
4656 extern tree most_specialized_instantiation (tree);
4657 extern void print_candidates (tree);
4658 extern void instantiate_pending_templates (int);
4659 extern tree tsubst_default_argument (tree, tree, tree);
4660 extern tree tsubst (tree, tree, tsubst_flags_t, tree);
4661 extern tree tsubst_copy_and_build (tree, tree, tsubst_flags_t,
4663 extern tree most_general_template (tree);
4664 extern tree get_mostly_instantiated_function_type (tree);
4665 extern int problematic_instantiation_changed (void);
4666 extern void record_last_problematic_instantiation (void);
4667 extern struct tinst_level *current_instantiation(void);
4668 extern tree maybe_get_template_decl_from_type_decl (tree);
4669 extern int processing_template_parmlist;
4670 extern bool dependent_type_p (tree);
4671 extern bool dependent_scope_p (tree);
4672 extern bool any_dependent_template_arguments_p (const_tree);
4673 extern bool dependent_template_p (tree);
4674 extern bool dependent_template_id_p (tree, tree);
4675 extern bool type_dependent_expression_p (tree);
4676 extern bool any_type_dependent_arguments_p (const VEC(tree,gc) *);
4677 extern bool type_dependent_expression_p_push (tree);
4678 extern bool value_dependent_expression_p (tree);
4679 extern bool any_value_dependent_elements_p (const_tree);
4680 extern bool dependent_omp_for_p (tree, tree, tree, tree);
4681 extern tree resolve_typename_type (tree, bool);
4682 extern tree template_for_substitution (tree);
4683 extern tree build_non_dependent_expr (tree);
4684 extern void make_args_non_dependent (VEC(tree,gc) *);
4685 extern bool reregister_specialization (tree, tree, tree);
4686 extern tree fold_non_dependent_expr (tree);
4687 extern bool explicit_class_specialization_p (tree);
4688 extern struct tinst_level *outermost_tinst_level(void);
4689 extern bool parameter_of_template_p (tree, tree);
4690 extern void init_template_processing (void);
4691 bool template_template_parameter_p (const_tree);
4692 extern tree get_primary_template_innermost_parameters (const_tree);
4693 extern tree get_template_innermost_arguments (const_tree);
4694 extern tree get_template_argument_pack_elems (const_tree);
4697 extern void init_repo (void);
4698 extern int repo_emit_p (tree);
4699 extern bool repo_export_class_p (const_tree);
4700 extern void finish_repo (void);
4703 /* A vector of all tinfo decls that haven't been emitted yet. */
4704 extern GTY(()) VEC(tree,gc) *unemitted_tinfo_decls;
4706 extern void init_rtti_processing (void);
4707 extern tree build_typeid (tree);
4708 extern tree get_tinfo_decl (tree);
4709 extern tree get_typeid (tree);
4710 extern tree build_headof (tree);
4711 extern tree build_dynamic_cast (tree, tree, tsubst_flags_t);
4712 extern void emit_support_tinfos (void);
4713 extern bool emit_tinfo_decl (tree);
4716 extern bool accessible_base_p (tree, tree, bool);
4717 extern tree lookup_base (tree, tree, base_access,
4719 extern tree dcast_base_hint (tree, tree);
4720 extern int accessible_p (tree, tree, bool);
4721 extern tree lookup_field_1 (tree, tree, bool);
4722 extern tree lookup_field (tree, tree, int, bool);
4723 extern int lookup_fnfields_1 (tree, tree);
4724 extern int class_method_index_for_fn (tree, tree);
4725 extern tree lookup_fnfields (tree, tree, int);
4726 extern tree lookup_member (tree, tree, int, bool);
4727 extern int look_for_overrides (tree, tree);
4728 extern void get_pure_virtuals (tree);
4729 extern void maybe_suppress_debug_info (tree);
4730 extern void note_debug_info_needed (tree);
4731 extern void print_search_statistics (void);
4732 extern void reinit_search_statistics (void);
4733 extern tree current_scope (void);
4734 extern int at_function_scope_p (void);
4735 extern bool at_class_scope_p (void);
4736 extern bool at_namespace_scope_p (void);
4737 extern tree context_for_name_lookup (tree);
4738 extern tree lookup_conversions (tree);
4739 extern tree binfo_from_vbase (tree);
4740 extern tree binfo_for_vbase (tree, tree);
4741 extern tree look_for_overrides_here (tree, tree);
4742 #define dfs_skip_bases ((tree)1)
4743 extern tree dfs_walk_all (tree, tree (*) (tree, void *),
4744 tree (*) (tree, void *), void *);
4745 extern tree dfs_walk_once (tree, tree (*) (tree, void *),
4746 tree (*) (tree, void *), void *);
4747 extern tree binfo_via_virtual (tree, tree);
4748 extern tree build_baselink (tree, tree, tree, tree);
4749 extern tree adjust_result_of_qualified_name_lookup
4751 extern tree copied_binfo (tree, tree);
4752 extern tree original_binfo (tree, tree);
4753 extern int shared_member_p (tree);
4756 /* The representation of a deferred access check. */
4758 typedef struct GTY(()) deferred_access_check {
4759 /* The base class in which the declaration is referenced. */
4761 /* The declaration whose access must be checked. */
4763 /* The declaration that should be used in the error message. */
4765 } deferred_access_check;
4766 DEF_VEC_O(deferred_access_check);
4767 DEF_VEC_ALLOC_O(deferred_access_check,gc);
4769 /* in semantics.c */
4770 extern void push_deferring_access_checks (deferring_kind);
4771 extern void resume_deferring_access_checks (void);
4772 extern void stop_deferring_access_checks (void);
4773 extern void pop_deferring_access_checks (void);
4774 extern VEC (deferred_access_check,gc)* get_deferred_access_checks (void);
4775 extern void pop_to_parent_deferring_access_checks (void);
4776 extern void perform_access_checks (VEC (deferred_access_check,gc)*);
4777 extern void perform_deferred_access_checks (void);
4778 extern void perform_or_defer_access_check (tree, tree, tree);
4779 extern int stmts_are_full_exprs_p (void);
4780 extern void init_cp_semantics (void);
4781 extern tree do_poplevel (tree);
4782 extern void add_decl_expr (tree);
4783 extern tree finish_expr_stmt (tree);
4784 extern tree begin_if_stmt (void);
4785 extern void finish_if_stmt_cond (tree, tree);
4786 extern tree finish_then_clause (tree);
4787 extern void begin_else_clause (tree);
4788 extern void finish_else_clause (tree);
4789 extern void finish_if_stmt (tree);
4790 extern tree begin_while_stmt (void);
4791 extern void finish_while_stmt_cond (tree, tree);
4792 extern void finish_while_stmt (tree);
4793 extern tree begin_do_stmt (void);
4794 extern void finish_do_body (tree);
4795 extern void finish_do_stmt (tree, tree);
4796 extern tree finish_return_stmt (tree);
4797 extern tree begin_for_stmt (void);
4798 extern void finish_for_init_stmt (tree);
4799 extern void finish_for_cond (tree, tree);
4800 extern void finish_for_expr (tree, tree);
4801 extern void finish_for_stmt (tree);
4802 extern tree finish_break_stmt (void);
4803 extern tree finish_continue_stmt (void);
4804 extern tree begin_switch_stmt (void);
4805 extern void finish_switch_cond (tree, tree);
4806 extern void finish_switch_stmt (tree);
4807 extern tree finish_goto_stmt (tree);
4808 extern tree begin_try_block (void);
4809 extern void finish_try_block (tree);
4810 extern void finish_handler_sequence (tree);
4811 extern tree begin_function_try_block (tree *);
4812 extern void finish_function_try_block (tree);
4813 extern void finish_function_handler_sequence (tree, tree);
4814 extern void finish_cleanup_try_block (tree);
4815 extern tree begin_handler (void);
4816 extern void finish_handler_parms (tree, tree);
4817 extern void finish_handler (tree);
4818 extern void finish_cleanup (tree, tree);
4825 extern tree begin_compound_stmt (unsigned int);
4827 extern void finish_compound_stmt (tree);
4828 extern tree finish_asm_stmt (int, tree, tree, tree, tree,
4830 extern tree finish_label_stmt (tree);
4831 extern void finish_label_decl (tree);
4832 extern tree finish_parenthesized_expr (tree);
4833 extern tree finish_non_static_data_member (tree, tree, tree);
4834 extern tree begin_stmt_expr (void);
4835 extern tree finish_stmt_expr_expr (tree, tree);
4836 extern tree finish_stmt_expr (tree, bool);
4837 extern tree stmt_expr_value_expr (tree);
4838 extern tree perform_koenig_lookup (tree, VEC(tree,gc) *);
4839 extern tree finish_call_expr (tree, VEC(tree,gc) **, bool,
4840 bool, tsubst_flags_t);
4841 extern tree finish_increment_expr (tree, enum tree_code);
4842 extern tree finish_this_expr (void);
4843 extern tree finish_pseudo_destructor_expr (tree, tree, tree);
4844 extern tree finish_unary_op_expr (enum tree_code, tree);
4845 extern tree finish_compound_literal (tree, tree);
4846 extern tree finish_fname (tree);
4847 extern void finish_translation_unit (void);
4848 extern tree finish_template_type_parm (tree, tree);
4849 extern tree finish_template_template_parm (tree, tree);
4850 extern tree begin_class_definition (tree, tree);
4851 extern void finish_template_decl (tree);
4852 extern tree finish_template_type (tree, tree, int);
4853 extern tree finish_base_specifier (tree, tree, bool);
4854 extern void finish_member_declaration (tree);
4855 extern void qualified_name_lookup_error (tree, tree, tree,
4857 extern tree finish_id_expression (tree, tree, tree,
4860 bool, bool, bool, bool,
4863 extern tree finish_typeof (tree);
4864 extern tree finish_offsetof (tree);
4865 extern void finish_decl_cleanup (tree, tree);
4866 extern void finish_eh_cleanup (tree);
4867 extern void emit_associated_thunks (tree);
4868 extern void finish_mem_initializers (tree);
4869 extern tree check_template_template_default_arg (tree);
4870 extern void expand_or_defer_fn (tree);
4871 extern void check_accessibility_of_qualified_id (tree, tree, tree);
4872 extern tree finish_qualified_id_expr (tree, tree, bool, bool,
4874 extern void simplify_aggr_init_expr (tree *);
4875 extern void finalize_nrv (tree *, tree, tree);
4876 extern void note_decl_for_pch (tree);
4877 extern tree finish_omp_clauses (tree);
4878 extern void finish_omp_threadprivate (tree);
4879 extern tree begin_omp_structured_block (void);
4880 extern tree finish_omp_structured_block (tree);
4881 extern tree begin_omp_parallel (void);
4882 extern tree finish_omp_parallel (tree, tree);
4883 extern tree begin_omp_task (void);
4884 extern tree finish_omp_task (tree, tree);
4885 extern tree finish_omp_for (location_t, tree, tree,
4886 tree, tree, tree, tree, tree);
4887 extern void finish_omp_atomic (enum tree_code, tree, tree);
4888 extern void finish_omp_barrier (void);
4889 extern void finish_omp_flush (void);
4890 extern void finish_omp_taskwait (void);
4891 extern bool cxx_omp_create_clause_info (tree, tree, bool, bool, bool);
4892 extern tree baselink_for_fns (tree);
4893 extern void finish_static_assert (tree, tree, location_t,
4895 extern tree describable_type (tree);
4896 extern tree finish_decltype_type (tree, bool);
4897 extern tree finish_trait_expr (enum cp_trait_kind, tree, tree);
4900 void cp_free_lang_data (tree t);
4901 extern tree force_target_expr (tree, tree);
4902 extern tree build_target_expr_with_type (tree, tree);
4903 extern void lang_check_failed (const char *, int,
4904 const char *) ATTRIBUTE_NORETURN;
4905 extern tree stabilize_expr (tree, tree *);
4906 extern void stabilize_call (tree, tree *);
4907 extern void stabilize_aggr_init (tree, tree *);
4908 extern bool stabilize_init (tree, tree *);
4909 extern tree add_stmt_to_compound (tree, tree);
4910 extern void init_tree (void);
4911 extern bool pod_type_p (const_tree);
4912 extern bool layout_pod_type_p (const_tree);
4913 extern bool std_layout_type_p (const_tree);
4914 extern bool trivial_type_p (const_tree);
4915 extern bool type_has_nontrivial_default_init (const_tree);
4916 extern bool type_has_nontrivial_copy_init (const_tree);
4917 extern bool class_tmpl_impl_spec_p (const_tree);
4918 extern int zero_init_p (const_tree);
4919 extern tree strip_typedefs (tree);
4920 extern tree copy_binfo (tree, tree, tree,
4922 extern int member_p (const_tree);
4923 extern cp_lvalue_kind real_lvalue_p (tree);
4924 extern bool lvalue_or_rvalue_with_address_p (const_tree);
4925 extern bool builtin_valid_in_constant_expr_p (const_tree);
4926 extern tree build_min (enum tree_code, tree, ...);
4927 extern tree build_min_nt (enum tree_code, ...);
4928 extern tree build_min_non_dep (enum tree_code, tree, ...);
4929 extern tree build_min_non_dep_call_vec (tree, tree, VEC(tree,gc) *);
4930 extern tree build_cplus_new (tree, tree);
4931 extern tree build_aggr_init_expr (tree, tree);
4932 extern tree get_target_expr (tree);
4933 extern tree build_cplus_array_type (tree, tree);
4934 extern tree build_array_of_n_type (tree, int);
4935 extern tree hash_tree_cons (tree, tree, tree);
4936 extern tree hash_tree_chain (tree, tree);
4937 extern tree build_qualified_name (tree, tree, tree, bool);
4938 extern int is_overloaded_fn (tree);
4939 extern tree get_first_fn (tree);
4940 extern tree ovl_cons (tree, tree);
4941 extern tree build_overload (tree, tree);
4942 extern const char *cxx_printable_name (tree, int);
4943 extern const char *cxx_printable_name_translate (tree, int);
4944 extern tree build_exception_variant (tree, tree);
4945 extern tree bind_template_template_parm (tree, tree);
4946 extern tree array_type_nelts_total (tree);
4947 extern tree array_type_nelts_top (tree);
4948 extern tree break_out_target_exprs (tree);
4949 extern tree get_type_decl (tree);
4950 extern tree decl_namespace_context (tree);
4951 extern bool decl_anon_ns_mem_p (const_tree);
4952 extern tree lvalue_type (tree);
4953 extern tree error_type (tree);
4954 extern int varargs_function_p (const_tree);
4955 extern bool really_overloaded_fn (tree);
4956 extern bool cp_tree_equal (tree, tree);
4957 extern tree no_linkage_check (tree, bool);
4958 extern void debug_binfo (tree);
4959 extern tree build_dummy_object (tree);
4960 extern tree maybe_dummy_object (tree, tree *);
4961 extern int is_dummy_object (const_tree);
4962 extern const struct attribute_spec cxx_attribute_table[];
4963 extern tree make_ptrmem_cst (tree, tree);
4964 extern tree cp_build_type_attribute_variant (tree, tree);
4965 extern tree cp_build_reference_type (tree, bool);
4966 extern tree cp_build_qualified_type_real (tree, int, tsubst_flags_t);
4967 #define cp_build_qualified_type(TYPE, QUALS) \
4968 cp_build_qualified_type_real ((TYPE), (QUALS), tf_warning_or_error)
4969 extern special_function_kind special_function_p (const_tree);
4970 extern int count_trees (tree);
4971 extern int char_type_p (tree);
4972 extern void verify_stmt_tree (tree);
4973 extern linkage_kind decl_linkage (tree);
4974 extern tree cp_walk_subtrees (tree*, int*, walk_tree_fn,
4975 void*, struct pointer_set_t*);
4976 #define cp_walk_tree(a,b,c,d) \
4977 walk_tree_1 (a, b, c, d, cp_walk_subtrees)
4978 #define cp_walk_tree_without_duplicates(a,b,c) \
4979 walk_tree_without_duplicates_1 (a, b, c, cp_walk_subtrees)
4980 extern tree fold_if_not_in_template (tree);
4981 extern tree rvalue (tree);
4982 extern tree convert_bitfield_to_declared_type (tree);
4983 extern tree cp_save_expr (tree);
4984 extern bool cast_valid_in_integral_constant_expression_p (tree);
4985 extern bool cxx_type_hash_eq (const_tree, const_tree);
4987 extern void cxx_print_statistics (void);
4990 extern void cxx_print_xnode (FILE *, tree, int);
4991 extern void cxx_print_decl (FILE *, tree, int);
4992 extern void cxx_print_type (FILE *, tree, int);
4993 extern void cxx_print_identifier (FILE *, tree, int);
4994 extern void cxx_print_error_function (struct diagnostic_context *,
4996 struct diagnostic_info *);
4999 extern bool cxx_mark_addressable (tree);
5000 extern int string_conv_p (const_tree, const_tree, int);
5001 extern tree cp_truthvalue_conversion (tree);
5002 extern tree condition_conversion (tree);
5003 extern tree require_complete_type (tree);
5004 extern tree complete_type (tree);
5005 extern tree complete_type_or_else (tree, tree);
5006 extern int type_unknown_p (const_tree);
5007 extern bool comp_except_specs (const_tree, const_tree, bool);
5008 extern bool comptypes (tree, tree, int);
5009 extern bool compparms (const_tree, const_tree);
5010 extern int comp_cv_qualification (const_tree, const_tree);
5011 extern int comp_cv_qual_signature (tree, tree);
5012 extern tree cxx_sizeof_or_alignof_expr (tree, enum tree_code, bool);
5013 extern tree cxx_sizeof_or_alignof_type (tree, enum tree_code, bool);
5014 extern tree cxx_sizeof_nowarn (tree);
5015 extern tree is_bitfield_expr_with_lowered_type (const_tree);
5016 extern tree unlowered_expr_type (const_tree);
5017 extern tree decay_conversion (tree);
5018 extern tree build_class_member_access_expr (tree, tree, tree, bool,
5020 extern tree finish_class_member_access_expr (tree, tree, bool,
5022 extern tree build_x_indirect_ref (tree, const char *,
5024 extern tree cp_build_indirect_ref (tree, const char *,
5026 extern tree build_array_ref (location_t, tree, tree);
5027 extern tree get_member_function_from_ptrfunc (tree *, tree);
5028 extern tree cp_build_function_call (tree, tree, tsubst_flags_t);
5029 extern tree cp_build_function_call_vec (tree, VEC(tree,gc) **,
5031 extern tree build_x_binary_op (enum tree_code, tree,
5032 enum tree_code, tree,
5033 enum tree_code, bool *,
5035 extern tree build_x_array_ref (tree, tree, tsubst_flags_t);
5036 extern tree build_x_unary_op (enum tree_code, tree,
5038 extern tree cp_build_unary_op (enum tree_code, tree, int,
5040 extern tree unary_complex_lvalue (enum tree_code, tree);
5041 extern tree build_x_conditional_expr (tree, tree, tree,
5043 extern tree build_x_compound_expr_from_list (tree, const char *);
5044 extern tree build_x_compound_expr_from_vec (VEC(tree,gc) *, const char *);
5045 extern tree build_x_compound_expr (tree, tree, tsubst_flags_t);
5046 extern tree build_compound_expr (location_t, tree, tree);
5047 extern tree cp_build_compound_expr (tree, tree, tsubst_flags_t);
5048 extern tree build_static_cast (tree, tree, tsubst_flags_t);
5049 extern tree build_reinterpret_cast (tree, tree, tsubst_flags_t);
5050 extern tree build_const_cast (tree, tree, tsubst_flags_t);
5051 extern tree build_c_cast (location_t, tree, tree);
5052 extern tree cp_build_c_cast (tree, tree, tsubst_flags_t);
5053 extern tree build_x_modify_expr (tree, enum tree_code, tree,
5055 extern tree cp_build_modify_expr (tree, enum tree_code, tree,
5057 extern tree convert_for_initialization (tree, tree, tree, int,
5058 const char *, tree, int,
5060 extern int comp_ptr_ttypes (tree, tree);
5061 extern bool comp_ptr_ttypes_const (tree, tree);
5062 extern int ptr_reasonably_similar (const_tree, const_tree);
5063 extern tree build_ptrmemfunc (tree, tree, int, bool);
5064 extern int cp_type_quals (const_tree);
5065 extern bool cp_type_readonly (const_tree);
5066 extern bool cp_has_mutable_p (const_tree);
5067 extern bool at_least_as_qualified_p (const_tree, const_tree);
5068 extern void cp_apply_type_quals_to_decl (int, tree);
5069 extern tree build_ptrmemfunc1 (tree, tree, tree);
5070 extern void expand_ptrmemfunc_cst (tree, tree *, tree *);
5071 extern tree type_after_usual_arithmetic_conversions (tree, tree);
5072 extern tree common_pointer_type (tree, tree);
5073 extern tree composite_pointer_type (tree, tree, tree, tree,
5074 const char*, tsubst_flags_t);
5075 extern tree merge_types (tree, tree);
5076 extern tree check_return_expr (tree, bool *);
5077 extern tree cp_build_binary_op (location_t,
5078 enum tree_code, tree, tree,
5080 #define cxx_sizeof(T) cxx_sizeof_or_alignof_type (T, SIZEOF_EXPR, true)
5081 extern tree build_ptrmemfunc_access_expr (tree, tree);
5082 extern tree build_address (tree);
5083 extern tree build_typed_address (tree, tree);
5084 extern tree build_nop (tree, tree);
5085 extern tree non_reference (tree);
5086 extern tree lookup_anon_field (tree, tree);
5087 extern bool invalid_nonstatic_memfn_p (const_tree, tsubst_flags_t);
5088 extern tree convert_member_func_to_ptr (tree, tree);
5089 extern tree convert_ptrmem (tree, tree, bool, bool);
5090 extern int lvalue_or_else (tree, enum lvalue_use,
5092 extern void check_template_keyword (tree);
5095 extern void require_complete_eh_spec_types (tree, tree);
5096 extern void cxx_incomplete_type_diagnostic (const_tree, const_tree, diagnostic_t);
5097 #undef cxx_incomplete_type_error
5098 extern void cxx_incomplete_type_error (const_tree, const_tree);
5099 #define cxx_incomplete_type_error(V,T) \
5100 (cxx_incomplete_type_diagnostic ((V), (T), DK_ERROR))
5101 extern tree error_not_base_type (tree, tree);
5102 extern tree binfo_or_else (tree, tree);
5103 extern void readonly_error (tree, const char *);
5104 extern void complete_type_check_abstract (tree);
5105 extern int abstract_virtuals_error (tree, tree);
5107 extern tree store_init_value (tree, tree, int);
5108 extern void check_narrowing (tree, tree);
5109 extern tree digest_init (tree, tree);
5110 extern tree digest_init_flags (tree, tree, int);
5111 extern tree build_scoped_ref (tree, tree, tree *);
5112 extern tree build_x_arrow (tree);
5113 extern tree build_m_component_ref (tree, tree);
5114 extern tree build_functional_cast (tree, tree, tsubst_flags_t);
5115 extern tree add_exception_specifier (tree, tree, int);
5116 extern tree merge_exception_specifiers (tree, tree);
5119 extern void init_mangle (void);
5120 extern void mangle_decl (tree);
5121 extern const char *mangle_type_string_for_rtti (tree);
5122 extern tree mangle_typeinfo_for_type (tree);
5123 extern tree mangle_typeinfo_string_for_type (tree);
5124 extern tree mangle_vtbl_for_type (tree);
5125 extern tree mangle_vtt_for_type (tree);
5126 extern tree mangle_ctor_vtbl_for_type (tree, tree);
5127 extern tree mangle_thunk (tree, int, tree, tree);
5128 extern tree mangle_conv_op_name_for_type (tree);
5129 extern tree mangle_guard_variable (tree);
5130 extern tree mangle_ref_init_variable (tree);
5133 extern bool cp_dump_tree (void *, tree);
5135 /* In cp/cp-objcp-common.c. */
5137 extern alias_set_type cxx_get_alias_set (tree);
5138 extern bool cxx_warn_unused_global_decl (const_tree);
5139 extern tree cp_expr_size (const_tree);
5140 extern size_t cp_tree_size (enum tree_code);
5141 extern bool cp_var_mod_type_p (tree, tree);
5142 extern void cxx_initialize_diagnostics (struct diagnostic_context *);
5143 extern int cxx_types_compatible_p (tree, tree);
5144 extern void init_shadowed_var_for_decl (void);
5146 /* in cp-gimplify.c */
5147 extern int cp_gimplify_expr (tree *, gimple_seq *,
5149 extern void cp_genericize (tree);
5150 extern enum omp_clause_default_kind cxx_omp_predetermined_sharing (tree);
5151 extern tree cxx_omp_clause_default_ctor (tree, tree, tree);
5152 extern tree cxx_omp_clause_copy_ctor (tree, tree, tree);
5153 extern tree cxx_omp_clause_assign_op (tree, tree, tree);
5154 extern tree cxx_omp_clause_dtor (tree, tree);
5155 extern void cxx_omp_finish_clause (tree);
5156 extern bool cxx_omp_privatize_by_reference (const_tree);
5160 #endif /* ! GCC_CP_TREE_H */