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
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)
46 extern void cp_cpp_error (cpp_reader *, int,
47 const char *, va_list *)
48 ATTRIBUTE_GCC_CXXDIAG(3,0);
51 In order for the format checking to accept the C++ front end diagnostic \
52 framework extensions, you must include this file before toplev.h, not after.
55 #include "diagnostic.h"
57 /* Usage of TREE_LANG_FLAG_?:
58 0: IDENTIFIER_MARKED (IDENTIFIER_NODEs)
59 NEW_EXPR_USE_GLOBAL (in NEW_EXPR).
60 DELETE_EXPR_USE_GLOBAL (in DELETE_EXPR).
61 COMPOUND_EXPR_OVERLOADED (in COMPOUND_EXPR).
62 TREE_INDIRECT_USING (in NAMESPACE_DECL).
63 CLEANUP_P (in TRY_BLOCK)
64 AGGR_INIT_VIA_CTOR_P (in AGGR_INIT_EXPR)
65 PTRMEM_OK_P (in ADDR_EXPR, OFFSET_REF)
66 PAREN_STRING_LITERAL (in STRING_CST)
67 DECL_PRETTY_FUNCTION_P (in VAR_DECL)
68 KOENIG_LOOKUP_P (in CALL_EXPR)
69 STATEMENT_LIST_NO_SCOPE (in STATEMENT_LIST).
70 EXPR_STMT_STMT_EXPR_RESULT (in EXPR_STMT)
71 STMT_EXPR_NO_SCOPE (in STMT_EXPR)
72 BIND_EXPR_TRY_BLOCK (in BIND_EXPR)
73 TYPENAME_IS_ENUM_P (in TYPENAME_TYPE)
74 REFERENCE_REF_P (in INDIRECT_EXPR)
75 QUALIFIED_NAME_IS_TEMPLATE (in SCOPE_REF)
76 OMP_FOR_GIMPLIFYING_P (in OMP_FOR)
77 BASELINK_QUALIFIED_P (in BASELINK)
78 TARGET_EXPR_IMPLICIT_P (in TARGET_EXPR)
79 TEMPLATE_PARM_PARAMETER_PACK (in TEMPLATE_PARM_INDEX)
80 TYPE_REF_IS_RVALUE (in REFERENCE_TYPE)
81 ATTR_IS_DEPENDENT (in the TREE_LIST for an attribute)
82 CONSTRUCTOR_IS_DIRECT_INIT (in CONSTRUCTOR)
83 1: IDENTIFIER_VIRTUAL_P (in IDENTIFIER_NODE)
84 TI_PENDING_TEMPLATE_FLAG.
85 TEMPLATE_PARMS_FOR_INLINE.
86 DELETE_EXPR_USE_VEC (in DELETE_EXPR).
87 (TREE_CALLS_NEW) (in _EXPR or _REF) (commented-out).
88 ICS_ELLIPSIS_FLAG (in _CONV)
89 DECL_INITIALIZED_P (in VAR_DECL)
90 TYPENAME_IS_CLASS_P (in TYPENAME_TYPE)
91 STMT_IS_FULL_EXPR_P (in _STMT)
92 TARGET_EXPR_LIST_INIT_P (in TARGET_EXPR)
93 2: IDENTIFIER_OPNAME_P (in IDENTIFIER_NODE)
94 ICS_THIS_FLAG (in _CONV)
95 DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (in VAR_DECL)
96 STATEMENT_LIST_TRY_BLOCK (in STATEMENT_LIST)
97 TYPENAME_IS_RESOLVING_P (in TYPE_NAME_TYPE)
98 3: (TREE_REFERENCE_EXPR) (in NON_LVALUE_EXPR) (commented-out).
99 ICS_BAD_FLAG (in _CONV)
100 FN_TRY_BLOCK_P (in TRY_BLOCK)
101 IDENTIFIER_CTOR_OR_DTOR_P (in IDENTIFIER_NODE)
102 BIND_EXPR_BODY_BLOCK (in BIND_EXPR)
103 DECL_NON_TRIVIALLY_INITIALIZED_P (in VAR_DECL)
104 4: TREE_HAS_CONSTRUCTOR (in INDIRECT_REF, SAVE_EXPR, CONSTRUCTOR,
106 IDENTIFIER_TYPENAME_P (in IDENTIFIER_NODE)
107 DECL_TINFO_P (in VAR_DECL)
108 5: C_IS_RESERVED_WORD (in IDENTIFIER_NODE)
109 DECL_VTABLE_OR_VTT_P (in VAR_DECL)
110 6: IDENTIFIER_REPO_CHOSEN (in IDENTIFIER_NODE)
111 DECL_CONSTRUCTION_VTABLE_P (in VAR_DECL)
112 TYPE_MARKED_P (in _TYPE)
114 Usage of TYPE_LANG_FLAG_?:
116 1: TYPE_HAS_USER_CONSTRUCTOR.
119 4: TYPE_HAS_NONTRIVIAL_DESTRUCTOR
120 5: CLASS_TYPE_P (in RECORD_TYPE and UNION_TYPE)
121 SCOPED_ENUM_P (in ENUMERAL_TYPE)
122 6: TYPE_DEPENDENT_P_VALID
124 Usage of DECL_LANG_FLAG_?:
125 0: DECL_ERROR_REPORTED (in VAR_DECL).
126 DECL_TEMPLATE_PARM_P (in PARM_DECL, CONST_DECL, TYPE_DECL, or TEMPLATE_DECL)
127 DECL_LOCAL_FUNCTION_P (in FUNCTION_DECL)
128 DECL_MUTABLE_P (in FIELD_DECL)
129 DECL_DEPENDENT_P (in USING_DECL)
130 1: C_TYPEDEF_EXPLICITLY_SIGNED (in TYPE_DECL).
131 DECL_TEMPLATE_INSTANTIATED (in a VAR_DECL or a FUNCTION_DECL)
132 DECL_MEMBER_TEMPLATE_P (in TEMPLATE_DECL)
133 FUNCTION_PARAMETER_PACK_P (in PARM_DECL)
134 2: DECL_THIS_EXTERN (in VAR_DECL or FUNCTION_DECL).
135 DECL_IMPLICIT_TYPEDEF_P (in a TYPE_DECL)
137 4: DECL_C_BIT_FIELD (in a FIELD_DECL)
138 DECL_ANON_UNION_VAR_P (in a VAR_DECL)
139 DECL_SELF_REFERENCE_P (in a TYPE_DECL)
140 DECL_INVALID_OVERRIDER_P (in a FUNCTION_DECL)
141 5: DECL_INTERFACE_KNOWN.
142 6: DECL_THIS_STATIC (in VAR_DECL or FUNCTION_DECL).
143 DECL_FIELD_IS_BASE (in FIELD_DECL)
144 7: DECL_DEAD_FOR_LOCAL (in VAR_DECL).
145 DECL_THUNK_P (in a member FUNCTION_DECL)
147 Usage of language-independent fields in a language-dependent manner:
150 This field is used by TYPENAME_TYPEs, TEMPLATE_TYPE_PARMs, and so
151 forth as a substitute for the mark bits provided in `lang_type'.
152 At present, only the six low-order bits are used.
155 For an ENUMERAL_TYPE, this is ENUM_TEMPLATE_INFO.
156 For a FUNCTION_TYPE or METHOD_TYPE, this is TYPE_RAISES_EXCEPTIONS
159 For a binfo, this is a TREE_LIST. There is an entry for each
160 virtual function declared either in BINFO or its direct and
161 indirect primary bases.
163 The BV_DELTA of each node gives the amount by which to adjust the
164 `this' pointer when calling the function. If the method is an
165 overridden version of a base class method, then it is assumed
166 that, prior to adjustment, the this pointer points to an object
169 The BV_VCALL_INDEX of each node, if non-NULL, gives the vtable
170 index of the vcall offset for this entry.
172 The BV_FN is the declaration for the virtual function itself.
175 This is an expression with POINTER_TYPE that gives the value
176 to which the vptr should be initialized. Use get_vtbl_decl_for_binfo
177 to extract the VAR_DECL for the complete vtable.
180 This field is NULL for a non-virtual function. For a virtual
181 function, it is eventually set to an INTEGER_CST indicating the
182 index in the vtable at which this function can be found. When
183 a virtual function is declared, but before it is known what
184 function is overridden, this field is the error_mark_node.
186 Temporarily, it may be set to a TREE_LIST whose TREE_VALUE is
187 the virtual function this one overrides, and whose TREE_CHAIN is
188 the old DECL_VINDEX. */
190 /* Language-specific tree checkers. */
192 #define VAR_OR_FUNCTION_DECL_CHECK(NODE) \
193 TREE_CHECK2(NODE,VAR_DECL,FUNCTION_DECL)
195 #define VAR_FUNCTION_OR_PARM_DECL_CHECK(NODE) \
196 TREE_CHECK3(NODE,VAR_DECL,FUNCTION_DECL,PARM_DECL)
198 #define VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK(NODE) \
199 TREE_CHECK4(NODE,VAR_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL)
201 #define BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK(NODE) \
202 TREE_CHECK(NODE,BOUND_TEMPLATE_TEMPLATE_PARM)
204 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
205 #define NON_THUNK_FUNCTION_CHECK(NODE) __extension__ \
206 ({ __typeof(NODE) const __t = (NODE); \
207 if (TREE_CODE (__t) != FUNCTION_DECL && \
208 TREE_CODE (__t) != TEMPLATE_DECL && __t->decl_common.lang_specific \
209 && __t->decl_common.lang_specific->decl_flags.thunk_p) \
210 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, 0); \
212 #define THUNK_FUNCTION_CHECK(NODE) __extension__ \
213 ({ __typeof (NODE) const __t = (NODE); \
214 if (TREE_CODE (__t) != FUNCTION_DECL || !__t->decl_common.lang_specific \
215 || !__t->decl_common.lang_specific->decl_flags.thunk_p) \
216 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, 0); \
219 #define NON_THUNK_FUNCTION_CHECK(NODE) (NODE)
220 #define THUNK_FUNCTION_CHECK(NODE) (NODE)
223 /* Language-dependent contents of an identifier. */
225 struct lang_identifier GTY(())
227 struct c_common_identifier c_common;
228 cxx_binding *namespace_bindings;
229 cxx_binding *bindings;
230 tree class_template_info;
234 /* In an IDENTIFIER_NODE, nonzero if this identifier is actually a
235 keyword. C_RID_CODE (node) is then the RID_* value of the keyword,
236 and C_RID_YYCODE is the token number wanted by Yacc. */
238 #define C_IS_RESERVED_WORD(ID) TREE_LANG_FLAG_5 (ID)
240 #define LANG_IDENTIFIER_CAST(NODE) \
241 ((struct lang_identifier*)IDENTIFIER_NODE_CHECK (NODE))
243 struct template_parm_index_s GTY(())
245 struct tree_common common;
251 typedef struct template_parm_index_s template_parm_index;
253 struct ptrmem_cst GTY(())
255 struct tree_common common;
256 /* This isn't used, but the middle-end expects all constants to have
261 typedef struct ptrmem_cst * ptrmem_cst_t;
263 #define IDENTIFIER_GLOBAL_VALUE(NODE) \
264 namespace_binding ((NODE), global_namespace)
265 #define SET_IDENTIFIER_GLOBAL_VALUE(NODE, VAL) \
266 set_namespace_binding ((NODE), global_namespace, (VAL))
267 #define IDENTIFIER_NAMESPACE_VALUE(NODE) \
268 namespace_binding ((NODE), current_namespace)
269 #define SET_IDENTIFIER_NAMESPACE_VALUE(NODE, VAL) \
270 set_namespace_binding ((NODE), current_namespace, (VAL))
272 #define CLEANUP_P(NODE) TREE_LANG_FLAG_0 (TRY_BLOCK_CHECK (NODE))
274 #define BIND_EXPR_TRY_BLOCK(NODE) \
275 TREE_LANG_FLAG_0 (BIND_EXPR_CHECK (NODE))
277 /* Used to mark the block around the member initializers and cleanups. */
278 #define BIND_EXPR_BODY_BLOCK(NODE) \
279 TREE_LANG_FLAG_3 (BIND_EXPR_CHECK (NODE))
280 #define FUNCTION_NEEDS_BODY_BLOCK(NODE) \
281 (DECL_CONSTRUCTOR_P (NODE) || DECL_DESTRUCTOR_P (NODE))
283 #define STATEMENT_LIST_NO_SCOPE(NODE) \
284 TREE_LANG_FLAG_0 (STATEMENT_LIST_CHECK (NODE))
285 #define STATEMENT_LIST_TRY_BLOCK(NODE) \
286 TREE_LANG_FLAG_2 (STATEMENT_LIST_CHECK (NODE))
288 /* Nonzero if this statement should be considered a full-expression,
289 i.e., if temporaries created during this statement should have
290 their destructors run at the end of this statement. */
291 #define STMT_IS_FULL_EXPR_P(NODE) TREE_LANG_FLAG_1 ((NODE))
293 /* Marks the result of a statement expression. */
294 #define EXPR_STMT_STMT_EXPR_RESULT(NODE) \
295 TREE_LANG_FLAG_0 (EXPR_STMT_CHECK (NODE))
297 /* Nonzero if this statement-expression does not have an associated scope. */
298 #define STMT_EXPR_NO_SCOPE(NODE) \
299 TREE_LANG_FLAG_0 (STMT_EXPR_CHECK (NODE))
301 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, in the usual
303 #define same_type_p(TYPE1, TYPE2) \
304 comptypes ((TYPE1), (TYPE2), COMPARE_STRICT)
306 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, ignoring
307 top-level qualifiers. */
308 #define same_type_ignoring_top_level_qualifiers_p(TYPE1, TYPE2) \
309 same_type_p (TYPE_MAIN_VARIANT (TYPE1), TYPE_MAIN_VARIANT (TYPE2))
311 /* Nonzero if we are presently building a statement tree, rather
312 than expanding each statement as we encounter it. */
313 #define building_stmt_tree() (cur_stmt_list != NULL_TREE)
315 /* Returns nonzero iff NODE is a declaration for the global function
317 #define DECL_MAIN_P(NODE) \
318 (DECL_EXTERN_C_FUNCTION_P (NODE) \
319 && DECL_NAME (NODE) != NULL_TREE \
320 && MAIN_NAME_P (DECL_NAME (NODE)) \
323 /* The overloaded FUNCTION_DECL. */
324 #define OVL_FUNCTION(NODE) \
325 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->function)
326 #define OVL_CHAIN(NODE) TREE_CHAIN (NODE)
327 /* Polymorphic access to FUNCTION and CHAIN. */
328 #define OVL_CURRENT(NODE) \
329 ((TREE_CODE (NODE) == OVERLOAD) ? OVL_FUNCTION (NODE) : (NODE))
330 #define OVL_NEXT(NODE) \
331 ((TREE_CODE (NODE) == OVERLOAD) ? TREE_CHAIN (NODE) : NULL_TREE)
332 /* If set, this was imported in a using declaration.
333 This is not to confuse with being used somewhere, which
334 is not important for this node. */
335 #define OVL_USED(NODE) TREE_USED (NODE)
337 struct tree_overload GTY(())
339 struct tree_common common;
343 /* Returns true iff NODE is a BASELINK. */
344 #define BASELINK_P(NODE) \
345 (TREE_CODE (NODE) == BASELINK)
346 /* The BINFO indicating the base from which the BASELINK_FUNCTIONS came. */
347 #define BASELINK_BINFO(NODE) \
348 (((struct tree_baselink*) BASELINK_CHECK (NODE))->binfo)
349 /* The functions referred to by the BASELINK; either a FUNCTION_DECL,
350 a TEMPLATE_DECL, an OVERLOAD, or a TEMPLATE_ID_EXPR. */
351 #define BASELINK_FUNCTIONS(NODE) \
352 (((struct tree_baselink*) BASELINK_CHECK (NODE))->functions)
353 /* The BINFO in which the search for the functions indicated by this baselink
354 began. This base is used to determine the accessibility of functions
355 selected by overload resolution. */
356 #define BASELINK_ACCESS_BINFO(NODE) \
357 (((struct tree_baselink*) BASELINK_CHECK (NODE))->access_binfo)
358 /* For a type-conversion operator, the BASELINK_OPTYPE indicates the type
359 to which the conversion should occur. This value is important if
360 the BASELINK_FUNCTIONS include a template conversion operator --
361 the BASELINK_OPTYPE can be used to determine what type the user
363 #define BASELINK_OPTYPE(NODE) \
364 (TREE_CHAIN (BASELINK_CHECK (NODE)))
365 /* Nonzero if this baselink was from a qualified lookup. */
366 #define BASELINK_QUALIFIED_P(NODE) \
367 TREE_LANG_FLAG_0 (BASELINK_CHECK (NODE))
369 struct tree_baselink GTY(())
371 struct tree_common common;
377 /* The different kinds of ids that we encounter. */
379 typedef enum cp_id_kind
381 /* Not an id at all. */
383 /* An unqualified-id that is not a template-id. */
384 CP_ID_KIND_UNQUALIFIED,
385 /* An unqualified-id that is a dependent name. */
386 CP_ID_KIND_UNQUALIFIED_DEPENDENT,
387 /* An unqualified template-id. */
388 CP_ID_KIND_TEMPLATE_ID,
389 /* A qualified-id. */
393 /* Macros for access to language-specific slots in an identifier. */
395 #define IDENTIFIER_NAMESPACE_BINDINGS(NODE) \
396 (LANG_IDENTIFIER_CAST (NODE)->namespace_bindings)
397 #define IDENTIFIER_TEMPLATE(NODE) \
398 (LANG_IDENTIFIER_CAST (NODE)->class_template_info)
400 /* The IDENTIFIER_BINDING is the innermost cxx_binding for the
401 identifier. It's PREVIOUS is the next outermost binding. Each
402 VALUE field is a DECL for the associated declaration. Thus,
403 name lookup consists simply of pulling off the node at the front
404 of the list (modulo oddities for looking up the names of types,
405 and such.) You can use SCOPE field to determine the scope
406 that bound the name. */
407 #define IDENTIFIER_BINDING(NODE) \
408 (LANG_IDENTIFIER_CAST (NODE)->bindings)
410 /* TREE_TYPE only indicates on local and class scope the current
411 type. For namespace scope, the presence of a type in any namespace
412 is indicated with global_type_node, and the real type behind must
413 be found through lookup. */
414 #define IDENTIFIER_TYPE_VALUE(NODE) identifier_type_value (NODE)
415 #define REAL_IDENTIFIER_TYPE_VALUE(NODE) TREE_TYPE (NODE)
416 #define SET_IDENTIFIER_TYPE_VALUE(NODE,TYPE) (TREE_TYPE (NODE) = (TYPE))
417 #define IDENTIFIER_HAS_TYPE_VALUE(NODE) (IDENTIFIER_TYPE_VALUE (NODE) ? 1 : 0)
419 #define IDENTIFIER_LABEL_VALUE(NODE) \
420 (LANG_IDENTIFIER_CAST (NODE)->label_value)
421 #define SET_IDENTIFIER_LABEL_VALUE(NODE, VALUE) \
422 IDENTIFIER_LABEL_VALUE (NODE) = (VALUE)
424 /* Nonzero if this identifier is used as a virtual function name somewhere
425 (optimizes searches). */
426 #define IDENTIFIER_VIRTUAL_P(NODE) TREE_LANG_FLAG_1 (NODE)
428 /* Nonzero if this identifier is the prefix for a mangled C++ operator
430 #define IDENTIFIER_OPNAME_P(NODE) TREE_LANG_FLAG_2 (NODE)
432 /* Nonzero if this identifier is the name of a type-conversion
434 #define IDENTIFIER_TYPENAME_P(NODE) \
435 TREE_LANG_FLAG_4 (NODE)
437 /* Nonzero if this identifier is the name of a constructor or
439 #define IDENTIFIER_CTOR_OR_DTOR_P(NODE) \
440 TREE_LANG_FLAG_3 (NODE)
442 /* True iff NAME is the DECL_ASSEMBLER_NAME for an entity with vague
443 linkage which the prelinker has assigned to this translation
445 #define IDENTIFIER_REPO_CHOSEN(NAME) \
446 (TREE_LANG_FLAG_6 (NAME))
448 /* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */
449 #define C_TYPE_FIELDS_READONLY(TYPE) \
450 (LANG_TYPE_CLASS_CHECK (TYPE)->fields_readonly)
452 /* The tokens stored in the default argument. */
454 #define DEFARG_TOKENS(NODE) \
455 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->tokens)
456 #define DEFARG_INSTANTIATIONS(NODE) \
457 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->instantiations)
459 struct tree_default_arg GTY (())
461 struct tree_common common;
462 struct cp_token_cache *tokens;
463 VEC(tree,gc) *instantiations;
466 /* The condition associated with the static assertion. This must be
467 an integral constant expression. */
468 #define STATIC_ASSERT_CONDITION(NODE) \
469 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->condition)
471 /* The message associated with the static assertion. This must be a
472 string constant, which will be emitted as an error message when the
473 static assert condition is false. */
474 #define STATIC_ASSERT_MESSAGE(NODE) \
475 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->message)
477 /* Source location information for a static assertion. */
478 #define STATIC_ASSERT_SOURCE_LOCATION(NODE) \
479 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->location)
481 struct tree_static_assert GTY (())
483 struct tree_common common;
489 struct tree_argument_pack_select GTY (())
491 struct tree_common common;
496 /* The different kinds of traits that we encounter. */
498 typedef enum cp_trait_kind
500 CPTK_HAS_NOTHROW_ASSIGN,
501 CPTK_HAS_NOTHROW_CONSTRUCTOR,
502 CPTK_HAS_NOTHROW_COPY,
503 CPTK_HAS_TRIVIAL_ASSIGN,
504 CPTK_HAS_TRIVIAL_CONSTRUCTOR,
505 CPTK_HAS_TRIVIAL_COPY,
506 CPTK_HAS_TRIVIAL_DESTRUCTOR,
507 CPTK_HAS_VIRTUAL_DESTRUCTOR,
511 CPTK_IS_CONVERTIBLE_TO,
519 /* The types that we are processing. */
520 #define TRAIT_EXPR_TYPE1(NODE) \
521 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type1)
523 #define TRAIT_EXPR_TYPE2(NODE) \
524 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type2)
526 /* The specific trait that we are processing. */
527 #define TRAIT_EXPR_KIND(NODE) \
528 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->kind)
530 struct tree_trait_expr GTY (())
532 struct tree_common common;
535 enum cp_trait_kind kind;
538 enum cp_tree_node_structure_enum {
549 TS_CP_ARGUMENT_PACK_SELECT,
554 /* The resulting tree type. */
555 union lang_tree_node GTY((desc ("cp_tree_node_structure (&%h)"),
556 chain_next ("(union lang_tree_node *)TREE_CHAIN (&%h.generic)")))
558 union tree_node GTY ((tag ("TS_CP_GENERIC"),
559 desc ("tree_node_structure (&%h)"))) generic;
560 struct template_parm_index_s GTY ((tag ("TS_CP_TPI"))) tpi;
561 struct ptrmem_cst GTY ((tag ("TS_CP_PTRMEM"))) ptrmem;
562 struct tree_overload GTY ((tag ("TS_CP_OVERLOAD"))) overload;
563 struct tree_baselink GTY ((tag ("TS_CP_BASELINK"))) baselink;
564 struct tree_default_arg GTY ((tag ("TS_CP_DEFAULT_ARG"))) default_arg;
565 struct lang_identifier GTY ((tag ("TS_CP_IDENTIFIER"))) identifier;
566 struct tree_static_assert GTY ((tag ("TS_CP_STATIC_ASSERT")))
568 struct tree_argument_pack_select GTY ((tag ("TS_CP_ARGUMENT_PACK_SELECT")))
569 argument_pack_select;
570 struct tree_trait_expr GTY ((tag ("TS_CP_TRAIT_EXPR")))
578 CPTI_JAVA_SHORT_TYPE,
581 CPTI_JAVA_FLOAT_TYPE,
582 CPTI_JAVA_DOUBLE_TYPE,
584 CPTI_JAVA_BOOLEAN_TYPE,
587 CPTI_VTABLE_ENTRY_TYPE,
589 CPTI_VTABLE_INDEX_TYPE,
600 CPTI_CONST_TYPE_INFO_TYPE,
601 CPTI_TYPE_INFO_PTR_TYPE,
603 CPTI_GLOBAL_DELETE_FNDECL,
606 CPTI_CTOR_IDENTIFIER,
607 CPTI_COMPLETE_CTOR_IDENTIFIER,
608 CPTI_BASE_CTOR_IDENTIFIER,
609 CPTI_DTOR_IDENTIFIER,
610 CPTI_COMPLETE_DTOR_IDENTIFIER,
611 CPTI_BASE_DTOR_IDENTIFIER,
612 CPTI_DELETING_DTOR_IDENTIFIER,
613 CPTI_DELTA_IDENTIFIER,
614 CPTI_IN_CHARGE_IDENTIFIER,
615 CPTI_VTT_PARM_IDENTIFIER,
616 CPTI_NELTS_IDENTIFIER,
617 CPTI_THIS_IDENTIFIER,
619 CPTI_VPTR_IDENTIFIER,
623 CPTI_LANG_NAME_CPLUSPLUS,
626 CPTI_EMPTY_EXCEPT_SPEC,
629 CPTI_CALL_UNEXPECTED,
630 CPTI_ATEXIT_FN_PTR_TYPE,
640 extern GTY(()) tree cp_global_trees[CPTI_MAX];
642 #define java_byte_type_node cp_global_trees[CPTI_JAVA_BYTE_TYPE]
643 #define java_short_type_node cp_global_trees[CPTI_JAVA_SHORT_TYPE]
644 #define java_int_type_node cp_global_trees[CPTI_JAVA_INT_TYPE]
645 #define java_long_type_node cp_global_trees[CPTI_JAVA_LONG_TYPE]
646 #define java_float_type_node cp_global_trees[CPTI_JAVA_FLOAT_TYPE]
647 #define java_double_type_node cp_global_trees[CPTI_JAVA_DOUBLE_TYPE]
648 #define java_char_type_node cp_global_trees[CPTI_JAVA_CHAR_TYPE]
649 #define java_boolean_type_node cp_global_trees[CPTI_JAVA_BOOLEAN_TYPE]
651 #define wchar_decl_node cp_global_trees[CPTI_WCHAR_DECL]
652 #define vtable_entry_type cp_global_trees[CPTI_VTABLE_ENTRY_TYPE]
653 /* The type used to represent an offset by which to adjust the `this'
654 pointer in pointer-to-member types. */
655 #define delta_type_node cp_global_trees[CPTI_DELTA_TYPE]
656 /* The type used to represent an index into the vtable. */
657 #define vtable_index_type cp_global_trees[CPTI_VTABLE_INDEX_TYPE]
659 #define class_type_node cp_global_trees[CPTI_CLASS_TYPE]
660 #define unknown_type_node cp_global_trees[CPTI_UNKNOWN_TYPE]
661 #define init_list_type_node cp_global_trees[CPTI_INIT_LIST_TYPE]
662 #define vtbl_type_node cp_global_trees[CPTI_VTBL_TYPE]
663 #define vtbl_ptr_type_node cp_global_trees[CPTI_VTBL_PTR_TYPE]
664 #define std_node cp_global_trees[CPTI_STD]
665 #define abi_node cp_global_trees[CPTI_ABI]
666 #define const_type_info_type_node cp_global_trees[CPTI_CONST_TYPE_INFO_TYPE]
667 #define type_info_ptr_type cp_global_trees[CPTI_TYPE_INFO_PTR_TYPE]
668 #define abort_fndecl cp_global_trees[CPTI_ABORT_FNDECL]
669 #define global_delete_fndecl cp_global_trees[CPTI_GLOBAL_DELETE_FNDECL]
670 #define current_aggr cp_global_trees[CPTI_AGGR_TAG]
672 /* We cache these tree nodes so as to call get_identifier less
675 /* The name of a constructor that takes an in-charge parameter to
676 decide whether or not to construct virtual base classes. */
677 #define ctor_identifier cp_global_trees[CPTI_CTOR_IDENTIFIER]
678 /* The name of a constructor that constructs virtual base classes. */
679 #define complete_ctor_identifier cp_global_trees[CPTI_COMPLETE_CTOR_IDENTIFIER]
680 /* The name of a constructor that does not construct virtual base classes. */
681 #define base_ctor_identifier cp_global_trees[CPTI_BASE_CTOR_IDENTIFIER]
682 /* The name of a destructor that takes an in-charge parameter to
683 decide whether or not to destroy virtual base classes and whether
684 or not to delete the object. */
685 #define dtor_identifier cp_global_trees[CPTI_DTOR_IDENTIFIER]
686 /* The name of a destructor that destroys virtual base classes. */
687 #define complete_dtor_identifier cp_global_trees[CPTI_COMPLETE_DTOR_IDENTIFIER]
688 /* The name of a destructor that does not destroy virtual base
690 #define base_dtor_identifier cp_global_trees[CPTI_BASE_DTOR_IDENTIFIER]
691 /* The name of a destructor that destroys virtual base classes, and
692 then deletes the entire object. */
693 #define deleting_dtor_identifier cp_global_trees[CPTI_DELETING_DTOR_IDENTIFIER]
694 #define delta_identifier cp_global_trees[CPTI_DELTA_IDENTIFIER]
695 #define in_charge_identifier cp_global_trees[CPTI_IN_CHARGE_IDENTIFIER]
696 /* The name of the parameter that contains a pointer to the VTT to use
697 for this subobject constructor or destructor. */
698 #define vtt_parm_identifier cp_global_trees[CPTI_VTT_PARM_IDENTIFIER]
699 #define nelts_identifier cp_global_trees[CPTI_NELTS_IDENTIFIER]
700 #define this_identifier cp_global_trees[CPTI_THIS_IDENTIFIER]
701 #define pfn_identifier cp_global_trees[CPTI_PFN_IDENTIFIER]
702 #define vptr_identifier cp_global_trees[CPTI_VPTR_IDENTIFIER]
703 /* The name of the std namespace. */
704 #define std_identifier cp_global_trees[CPTI_STD_IDENTIFIER]
705 #define lang_name_c cp_global_trees[CPTI_LANG_NAME_C]
706 #define lang_name_cplusplus cp_global_trees[CPTI_LANG_NAME_CPLUSPLUS]
707 #define lang_name_java cp_global_trees[CPTI_LANG_NAME_JAVA]
709 /* Exception specifier used for throw(). */
710 #define empty_except_spec cp_global_trees[CPTI_EMPTY_EXCEPT_SPEC]
712 /* If non-NULL, a POINTER_TYPE equivalent to (java::lang::Class*). */
713 #define jclass_node cp_global_trees[CPTI_JCLASS]
715 /* The declaration for `std::terminate'. */
716 #define terminate_node cp_global_trees[CPTI_TERMINATE]
718 /* The declaration for "__cxa_call_unexpected". */
719 #define call_unexpected_node cp_global_trees[CPTI_CALL_UNEXPECTED]
721 /* The type of the function-pointer argument to "__cxa_atexit" (or
722 "std::atexit", if "__cxa_atexit" is not being used). */
723 #define atexit_fn_ptr_type_node cp_global_trees[CPTI_ATEXIT_FN_PTR_TYPE]
725 /* A pointer to `std::atexit'. */
726 #define atexit_node cp_global_trees[CPTI_ATEXIT]
728 /* A pointer to `__dso_handle'. */
729 #define dso_handle_node cp_global_trees[CPTI_DSO_HANDLE]
731 /* The declaration of the dynamic_cast runtime. */
732 #define dynamic_cast_node cp_global_trees[CPTI_DCAST]
734 /* The type of a destructor. */
735 #define cleanup_type cp_global_trees[CPTI_CLEANUP_TYPE]
737 /* The type of the vtt parameter passed to subobject constructors and
739 #define vtt_parm_type cp_global_trees[CPTI_VTT_PARM_TYPE]
741 /* A TREE_LIST of the dynamic classes whose vtables may have to be
742 emitted in this translation unit. */
744 #define keyed_classes cp_global_trees[CPTI_KEYED_CLASSES]
746 /* Node to indicate default access. This must be distinct from the
747 access nodes in tree.h. */
749 #define access_default_node null_node
753 struct saved_scope GTY(())
755 VEC(cxx_saved_binding,gc) *old_bindings;
760 tree access_specifier;
762 VEC(tree,gc) *lang_base;
765 struct cp_binding_level *x_previous_class_level;
768 int x_processing_template_decl;
769 int x_processing_specialization;
770 BOOL_BITFIELD x_processing_explicit_instantiation : 1;
771 BOOL_BITFIELD need_pop_function_context : 1;
772 BOOL_BITFIELD skip_evaluation : 1;
774 struct stmt_tree_s x_stmt_tree;
776 struct cp_binding_level *class_bindings;
777 struct cp_binding_level *bindings;
779 struct saved_scope *prev;
782 /* The current open namespace. */
784 #define current_namespace scope_chain->old_namespace
786 /* The stack for namespaces of current declarations. */
788 #define decl_namespace_list scope_chain->decl_ns_list
790 /* IDENTIFIER_NODE: name of current class */
792 #define current_class_name scope_chain->class_name
794 /* _TYPE: the type of the current class */
796 #define current_class_type scope_chain->class_type
798 /* When parsing a class definition, the access specifier most recently
799 given by the user, or, if no access specifier was given, the
800 default value appropriate for the kind of class (i.e., struct,
803 #define current_access_specifier scope_chain->access_specifier
805 /* Pointer to the top of the language name stack. */
807 #define current_lang_base scope_chain->lang_base
808 #define current_lang_name scope_chain->lang_name
810 /* When parsing a template declaration, a TREE_LIST represents the
811 active template parameters. Each node in the list represents one
812 level of template parameters. The innermost level is first in the
813 list. The depth of each level is stored as an INTEGER_CST in the
814 TREE_PURPOSE of each node. The parameters for that level are
815 stored in the TREE_VALUE. */
817 #define current_template_parms scope_chain->template_parms
819 #define processing_template_decl scope_chain->x_processing_template_decl
820 #define processing_specialization scope_chain->x_processing_specialization
821 #define processing_explicit_instantiation scope_chain->x_processing_explicit_instantiation
823 /* The cached class binding level, from the most recently exited
824 class, or NULL if none. */
826 #define previous_class_level scope_chain->x_previous_class_level
828 /* A list of private types mentioned, for deferred access checking. */
830 extern GTY(()) struct saved_scope *scope_chain;
832 struct cxx_int_tree_map GTY(())
838 extern unsigned int cxx_int_tree_map_hash (const void *);
839 extern int cxx_int_tree_map_eq (const void *, const void *);
841 /* Global state pertinent to the current function. */
843 struct language_function GTY(())
845 struct c_language_function base;
848 tree x_current_class_ptr;
849 tree x_current_class_ref;
850 tree x_eh_spec_block;
851 tree x_in_charge_parm;
855 BOOL_BITFIELD returns_value : 1;
856 BOOL_BITFIELD returns_null : 1;
857 BOOL_BITFIELD returns_abnormally : 1;
858 BOOL_BITFIELD in_function_try_handler : 1;
859 BOOL_BITFIELD in_base_initializer : 1;
861 /* True if this function can throw an exception. */
862 BOOL_BITFIELD can_throw : 1;
864 htab_t GTY((param_is(struct named_label_entry))) x_named_labels;
865 struct cp_binding_level *bindings;
866 VEC(tree,gc) *x_local_names;
867 htab_t GTY((param_is (struct cxx_int_tree_map))) extern_decl_map;
870 /* The current C++-specific per-function global variables. */
872 #define cp_function_chain (cfun->language)
874 /* In a constructor destructor, the point at which all derived class
875 destroying/construction has been done. I.e., just before a
876 constructor returns, or before any base class destroying will be done
879 #define cdtor_label cp_function_chain->x_cdtor_label
881 /* When we're processing a member function, current_class_ptr is the
882 PARM_DECL for the `this' pointer. The current_class_ref is an
883 expression for `*this'. */
885 #define current_class_ptr \
886 (cfun ? cp_function_chain->x_current_class_ptr : NULL_TREE)
887 #define current_class_ref \
888 (cfun ? cp_function_chain->x_current_class_ref : NULL_TREE)
890 /* The EH_SPEC_BLOCK for the exception-specifiers for the current
893 #define current_eh_spec_block cp_function_chain->x_eh_spec_block
895 /* The `__in_chrg' parameter for the current function. Only used for
896 constructors and destructors. */
898 #define current_in_charge_parm cp_function_chain->x_in_charge_parm
900 /* The `__vtt_parm' parameter for the current function. Only used for
901 constructors and destructors. */
903 #define current_vtt_parm cp_function_chain->x_vtt_parm
905 /* Set to 0 at beginning of a function definition, set to 1 if
906 a return statement that specifies a return value is seen. */
908 #define current_function_returns_value cp_function_chain->returns_value
910 /* Set to 0 at beginning of a function definition, set to 1 if
911 a return statement with no argument is seen. */
913 #define current_function_returns_null cp_function_chain->returns_null
915 /* Set to 0 at beginning of a function definition, set to 1 if
916 a call to a noreturn function is seen. */
918 #define current_function_returns_abnormally \
919 cp_function_chain->returns_abnormally
921 /* Nonzero if we are processing a base initializer. Zero elsewhere. */
922 #define in_base_initializer cp_function_chain->in_base_initializer
924 #define in_function_try_handler cp_function_chain->in_function_try_handler
926 /* Expression always returned from function, or error_mark_node
927 otherwise, for use by the automatic named return value optimization. */
929 #define current_function_return_value \
930 (cp_function_chain->x_return_value)
932 /* True if NAME is the IDENTIFIER_NODE for an overloaded "operator
933 new" or "operator delete". */
934 #define NEW_DELETE_OPNAME_P(NAME) \
935 ((NAME) == ansi_opname (NEW_EXPR) \
936 || (NAME) == ansi_opname (VEC_NEW_EXPR) \
937 || (NAME) == ansi_opname (DELETE_EXPR) \
938 || (NAME) == ansi_opname (VEC_DELETE_EXPR))
940 #define ansi_opname(CODE) \
941 (operator_name_info[(int) (CODE)].identifier)
942 #define ansi_assopname(CODE) \
943 (assignment_operator_name_info[(int) (CODE)].identifier)
945 /* True if NODE is an erroneous expression. */
947 #define error_operand_p(NODE) \
948 ((NODE) == error_mark_node \
949 || ((NODE) && TREE_TYPE ((NODE)) == error_mark_node))
951 /* TRUE if a tree code represents a statement. */
952 extern bool statement_code_p[MAX_TREE_CODES];
954 #define STATEMENT_CODE_P(CODE) statement_code_p[(int) (CODE)]
956 enum languages { lang_c, lang_cplusplus, lang_java };
958 /* Macros to make error reporting functions' lives easier. */
959 #define TYPE_IDENTIFIER(NODE) (DECL_NAME (TYPE_NAME (NODE)))
960 #define TYPE_LINKAGE_IDENTIFIER(NODE) \
961 (TYPE_IDENTIFIER (TYPE_MAIN_VARIANT (NODE)))
962 #define TYPE_NAME_STRING(NODE) (IDENTIFIER_POINTER (TYPE_IDENTIFIER (NODE)))
963 #define TYPE_NAME_LENGTH(NODE) (IDENTIFIER_LENGTH (TYPE_IDENTIFIER (NODE)))
965 /* Nonzero if NODE has no name for linkage purposes. */
966 #define TYPE_ANONYMOUS_P(NODE) \
967 (TAGGED_TYPE_P (NODE) && ANON_AGGRNAME_P (TYPE_LINKAGE_IDENTIFIER (NODE)))
969 /* The _DECL for this _TYPE. */
970 #define TYPE_MAIN_DECL(NODE) (TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE)))
972 /* Nonzero if T is a class (or struct or union) type. Also nonzero
973 for template type parameters, typename types, and instantiated
974 template template parameters. Keep these checks in ascending code
976 #define MAYBE_CLASS_TYPE_P(T) \
977 (TREE_CODE (T) == TEMPLATE_TYPE_PARM \
978 || TREE_CODE (T) == TYPENAME_TYPE \
979 || TREE_CODE (T) == TYPEOF_TYPE \
980 || TREE_CODE (T) == BOUND_TEMPLATE_TEMPLATE_PARM \
981 || TREE_CODE (T) == DECLTYPE_TYPE \
984 /* Set CLASS_TYPE_P for T to VAL. T must be a class, struct, or
986 #define SET_CLASS_TYPE_P(T, VAL) \
987 (TYPE_LANG_FLAG_5 (T) = (VAL))
989 /* Nonzero if T is a class type. Zero for template type parameters,
990 typename types, and so forth. */
991 #define CLASS_TYPE_P(T) \
992 (RECORD_OR_UNION_CODE_P (TREE_CODE (T)) && TYPE_LANG_FLAG_5 (T))
994 /* Nonzero if T is a class type but not an union. */
995 #define NON_UNION_CLASS_TYPE_P(T) \
996 (CLASS_TYPE_P (T) && TREE_CODE (T) != UNION_TYPE)
998 /* Keep these checks in ascending code order. */
999 #define RECORD_OR_UNION_CODE_P(T) \
1000 ((T) == RECORD_TYPE || (T) == UNION_TYPE)
1001 #define TAGGED_TYPE_P(T) \
1002 (CLASS_TYPE_P (T) || TREE_CODE (T) == ENUMERAL_TYPE)
1003 #define IS_OVERLOAD_TYPE(T) TAGGED_TYPE_P (T)
1005 /* True if this a "Java" type, defined in 'extern "Java"'. */
1006 #define TYPE_FOR_JAVA(NODE) TYPE_LANG_FLAG_3 (NODE)
1008 /* True if this type is dependent. This predicate is only valid if
1009 TYPE_DEPENDENT_P_VALID is true. */
1010 #define TYPE_DEPENDENT_P(NODE) TYPE_LANG_FLAG_0 (NODE)
1012 /* True if dependent_type_p has been called for this type, with the
1013 result that TYPE_DEPENDENT_P is valid. */
1014 #define TYPE_DEPENDENT_P_VALID(NODE) TYPE_LANG_FLAG_6(NODE)
1016 /* Nonzero if this type is const-qualified. */
1017 #define CP_TYPE_CONST_P(NODE) \
1018 ((cp_type_quals (NODE) & TYPE_QUAL_CONST) != 0)
1020 /* Nonzero if this type is volatile-qualified. */
1021 #define CP_TYPE_VOLATILE_P(NODE) \
1022 ((cp_type_quals (NODE) & TYPE_QUAL_VOLATILE) != 0)
1024 /* Nonzero if this type is restrict-qualified. */
1025 #define CP_TYPE_RESTRICT_P(NODE) \
1026 ((cp_type_quals (NODE) & TYPE_QUAL_RESTRICT) != 0)
1028 /* Nonzero if this type is const-qualified, but not
1029 volatile-qualified. Other qualifiers are ignored. This macro is
1030 used to test whether or not it is OK to bind an rvalue to a
1032 #define CP_TYPE_CONST_NON_VOLATILE_P(NODE) \
1033 ((cp_type_quals (NODE) & (TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE)) \
1036 #define FUNCTION_ARG_CHAIN(NODE) \
1037 TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (NODE)))
1039 /* Given a FUNCTION_DECL, returns the first TREE_LIST out of TYPE_ARG_TYPES
1040 which refers to a user-written parameter. */
1041 #define FUNCTION_FIRST_USER_PARMTYPE(NODE) \
1042 skip_artificial_parms_for ((NODE), TYPE_ARG_TYPES (TREE_TYPE (NODE)))
1044 /* Similarly, but for DECL_ARGUMENTS. */
1045 #define FUNCTION_FIRST_USER_PARM(NODE) \
1046 skip_artificial_parms_for ((NODE), DECL_ARGUMENTS (NODE))
1048 /* Nonzero iff TYPE is derived from PARENT. Ignores accessibility and
1049 ambiguity issues. */
1050 #define DERIVED_FROM_P(PARENT, TYPE) \
1051 (lookup_base ((TYPE), (PARENT), ba_any, NULL) != NULL_TREE)
1052 /* Nonzero iff TYPE is uniquely derived from PARENT. Ignores
1054 #define UNIQUELY_DERIVED_FROM_P(PARENT, TYPE) \
1055 (lookup_base ((TYPE), (PARENT), ba_unique | ba_quiet, NULL) != NULL_TREE)
1056 /* Nonzero iff TYPE is publicly & uniquely derived from PARENT. */
1057 #define PUBLICLY_UNIQUELY_DERIVED_P(PARENT, TYPE) \
1058 (lookup_base ((TYPE), (PARENT), ba_ignore_scope | ba_check | ba_quiet, \
1061 /* Gives the visibility specification for a class type. */
1062 #define CLASSTYPE_VISIBILITY(TYPE) \
1063 DECL_VISIBILITY (TYPE_NAME (TYPE))
1064 #define CLASSTYPE_VISIBILITY_SPECIFIED(TYPE) \
1065 DECL_VISIBILITY_SPECIFIED (TYPE_NAME (TYPE))
1067 typedef struct tree_pair_s GTY (())
1072 typedef tree_pair_s *tree_pair_p;
1073 DEF_VEC_O (tree_pair_s);
1074 DEF_VEC_ALLOC_O (tree_pair_s,gc);
1076 /* This is a few header flags for 'struct lang_type'. Actually,
1077 all but the first are used only for lang_type_class; they
1078 are put in this structure to save space. */
1079 struct lang_type_header GTY(())
1081 BOOL_BITFIELD is_lang_type_class : 1;
1083 BOOL_BITFIELD has_type_conversion : 1;
1084 BOOL_BITFIELD has_init_ref : 1;
1085 BOOL_BITFIELD has_default_ctor : 1;
1086 BOOL_BITFIELD const_needs_init : 1;
1087 BOOL_BITFIELD ref_needs_init : 1;
1088 BOOL_BITFIELD has_const_assign_ref : 1;
1090 BOOL_BITFIELD spare : 1;
1093 /* This structure provides additional information above and beyond
1094 what is provide in the ordinary tree_type. In the past, we used it
1095 for the types of class types, template parameters types, typename
1096 types, and so forth. However, there can be many (tens to hundreds
1097 of thousands) of template parameter types in a compilation, and
1098 there's no need for this additional information in that case.
1099 Therefore, we now use this data structure only for class types.
1101 In the past, it was thought that there would be relatively few
1102 class types. However, in the presence of heavy use of templates,
1103 many (i.e., thousands) of classes can easily be generated.
1104 Therefore, we should endeavor to keep the size of this structure to
1106 struct lang_type_class GTY(())
1108 struct lang_type_header h;
1110 unsigned char align;
1112 unsigned has_mutable : 1;
1113 unsigned com_interface : 1;
1114 unsigned non_pod_class : 1;
1115 unsigned nearly_empty_p : 1;
1116 unsigned user_align : 1;
1117 unsigned has_assign_ref : 1;
1118 unsigned has_new : 1;
1119 unsigned has_array_new : 1;
1121 unsigned gets_delete : 2;
1122 unsigned interface_only : 1;
1123 unsigned interface_unknown : 1;
1124 unsigned contains_empty_class_p : 1;
1125 unsigned anon_aggr : 1;
1126 unsigned non_zero_init : 1;
1127 unsigned empty_p : 1;
1129 unsigned vec_new_uses_cookie : 1;
1130 unsigned declared_class : 1;
1131 unsigned diamond_shaped : 1;
1132 unsigned repeated_base : 1;
1133 unsigned being_defined : 1;
1134 unsigned java_interface : 1;
1135 unsigned debug_requested : 1;
1136 unsigned fields_readonly : 1;
1138 unsigned use_template : 2;
1139 unsigned ptrmemfunc_flag : 1;
1140 unsigned was_anonymous : 1;
1141 unsigned lazy_default_ctor : 1;
1142 unsigned lazy_copy_ctor : 1;
1143 unsigned lazy_assignment_op : 1;
1144 unsigned lazy_destructor : 1;
1146 unsigned has_const_init_ref : 1;
1147 unsigned has_complex_init_ref : 1;
1148 unsigned has_complex_assign_ref : 1;
1149 unsigned non_aggregate : 1;
1150 unsigned has_complex_dflt : 1;
1151 unsigned has_list_ctor : 1;
1153 /* When adding a flag here, consider whether or not it ought to
1154 apply to a template instance if it applies to the template. If
1155 so, make sure to copy it in instantiate_class_template! */
1157 /* There are some bits left to fill out a 32-bit word. Keep track
1158 of this by updating the size of this bitfield whenever you add or
1160 unsigned dummy : 10;
1163 VEC(tree_pair_s,gc) *vcall_indices;
1166 VEC(tree,gc) *vbases;
1167 binding_table nested_udts;
1169 VEC(tree,gc) *pure_virtuals;
1170 tree friend_classes;
1171 VEC(tree,gc) * GTY((reorder ("resort_type_method_vec"))) methods;
1175 tree befriending_classes;
1176 /* In a RECORD_TYPE, information specific to Objective-C++, such
1177 as a list of adopted protocols or a pointer to a corresponding
1178 @interface. See objc/objc-act.h for details. */
1182 struct lang_type_ptrmem GTY(())
1184 struct lang_type_header h;
1188 struct lang_type GTY(())
1192 struct lang_type_header GTY((skip (""))) h;
1193 struct lang_type_class GTY((tag ("1"))) c;
1194 struct lang_type_ptrmem GTY((tag ("0"))) ptrmem;
1195 } GTY((desc ("%h.h.is_lang_type_class"))) u;
1198 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1200 #define LANG_TYPE_CLASS_CHECK(NODE) __extension__ \
1201 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1202 if (! lt->u.h.is_lang_type_class) \
1203 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1206 #define LANG_TYPE_PTRMEM_CHECK(NODE) __extension__ \
1207 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1208 if (lt->u.h.is_lang_type_class) \
1209 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1214 #define LANG_TYPE_CLASS_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.c)
1215 #define LANG_TYPE_PTRMEM_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.ptrmem)
1217 #endif /* ENABLE_TREE_CHECKING */
1219 /* Fields used for storing information before the class is defined.
1220 After the class is defined, these fields hold other information. */
1222 /* VEC(tree) of friends which were defined inline in this class
1224 #define CLASSTYPE_INLINE_FRIENDS(NODE) CLASSTYPE_PURE_VIRTUALS (NODE)
1226 /* Nonzero for _CLASSTYPE means that operator delete is defined. */
1227 #define TYPE_GETS_DELETE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->gets_delete)
1228 #define TYPE_GETS_REG_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 1)
1230 /* Nonzero if `new NODE[x]' should cause the allocation of extra
1231 storage to indicate how many array elements are in use. */
1232 #define TYPE_VEC_NEW_USES_COOKIE(NODE) \
1233 (CLASS_TYPE_P (NODE) \
1234 && LANG_TYPE_CLASS_CHECK (NODE)->vec_new_uses_cookie)
1236 /* Nonzero means that this _CLASSTYPE node defines ways of converting
1237 itself to other types. */
1238 #define TYPE_HAS_CONVERSION(NODE) \
1239 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_type_conversion)
1241 /* Nonzero means that NODE (a class type) has a default constructor --
1242 but that it has not yet been declared. */
1243 #define CLASSTYPE_LAZY_DEFAULT_CTOR(NODE) \
1244 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_default_ctor)
1246 /* Nonzero means that NODE (a class type) has a copy constructor --
1247 but that it has not yet been declared. */
1248 #define CLASSTYPE_LAZY_COPY_CTOR(NODE) \
1249 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_ctor)
1251 /* Nonzero means that NODE (a class type) has an assignment operator
1252 -- but that it has not yet been declared. */
1253 #define CLASSTYPE_LAZY_ASSIGNMENT_OP(NODE) \
1254 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_assignment_op)
1256 /* Nonzero means that NODE (a class type) has a destructor -- but that
1257 it has not yet been declared. */
1258 #define CLASSTYPE_LAZY_DESTRUCTOR(NODE) \
1259 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_destructor)
1261 /* Nonzero means that this _CLASSTYPE node overloads operator=(X&). */
1262 #define TYPE_HAS_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_assign_ref)
1264 /* True iff the class type NODE has an "operator =" whose parameter
1265 has a parameter of type "const X&". */
1266 #define TYPE_HAS_CONST_ASSIGN_REF(NODE) \
1267 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_const_assign_ref)
1269 /* Nonzero means that this _CLASSTYPE node has an X(X&) constructor. */
1270 #define TYPE_HAS_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->h.has_init_ref)
1271 #define TYPE_HAS_CONST_INIT_REF(NODE) \
1272 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_init_ref)
1274 /* Nonzero if this class has an X(initializer_list<T>) constructor. */
1275 #define TYPE_HAS_LIST_CTOR(NODE) \
1276 (LANG_TYPE_CLASS_CHECK (NODE)->has_list_ctor)
1278 /* Nonzero if this class defines an overloaded operator new. (An
1279 operator new [] doesn't count.) */
1280 #define TYPE_HAS_NEW_OPERATOR(NODE) \
1281 (LANG_TYPE_CLASS_CHECK (NODE)->has_new)
1283 /* Nonzero if this class defines an overloaded operator new[]. */
1284 #define TYPE_HAS_ARRAY_NEW_OPERATOR(NODE) \
1285 (LANG_TYPE_CLASS_CHECK (NODE)->has_array_new)
1287 /* Nonzero means that this type is being defined. I.e., the left brace
1288 starting the definition of this type has been seen. */
1289 #define TYPE_BEING_DEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->being_defined)
1291 /* Mark bits for repeated base checks. */
1292 #define TYPE_MARKED_P(NODE) TREE_LANG_FLAG_6 (TYPE_CHECK (NODE))
1294 /* Nonzero if the class NODE has multiple paths to the same (virtual)
1296 #define CLASSTYPE_DIAMOND_SHAPED_P(NODE) \
1297 (LANG_TYPE_CLASS_CHECK(NODE)->diamond_shaped)
1299 /* Nonzero if the class NODE has multiple instances of the same base
1301 #define CLASSTYPE_REPEATED_BASE_P(NODE) \
1302 (LANG_TYPE_CLASS_CHECK(NODE)->repeated_base)
1304 /* The member function with which the vtable will be emitted:
1305 the first noninline non-pure-virtual member function. NULL_TREE
1306 if there is no key function or if this is a class template */
1307 #define CLASSTYPE_KEY_METHOD(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->key_method)
1309 /* Vector member functions defined in this class. Each element is
1310 either a FUNCTION_DECL, a TEMPLATE_DECL, or an OVERLOAD. All
1311 functions with the same name end up in the same slot. The first
1312 two elements are for constructors, and destructors, respectively.
1313 All template conversion operators to innermost template dependent
1314 types are overloaded on the next slot, if they exist. Note, the
1315 names for these functions will not all be the same. The
1316 non-template conversion operators & templated conversions to
1317 non-innermost template types are next, followed by ordinary member
1318 functions. There may be empty entries at the end of the vector.
1319 The conversion operators are unsorted. The ordinary member
1320 functions are sorted, once the class is complete. */
1321 #define CLASSTYPE_METHOD_VEC(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->methods)
1323 /* For class templates, this is a TREE_LIST of all member data,
1324 functions, types, and friends in the order of declaration.
1325 The TREE_PURPOSE of each TREE_LIST is NULL_TREE for a friend,
1326 and the RECORD_TYPE for the class template otherwise. */
1327 #define CLASSTYPE_DECL_LIST(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->decl_list)
1329 /* The slot in the CLASSTYPE_METHOD_VEC where constructors go. */
1330 #define CLASSTYPE_CONSTRUCTOR_SLOT 0
1332 /* The slot in the CLASSTYPE_METHOD_VEC where destructors go. */
1333 #define CLASSTYPE_DESTRUCTOR_SLOT 1
1335 /* The first slot in the CLASSTYPE_METHOD_VEC where conversion
1336 operators can appear. */
1337 #define CLASSTYPE_FIRST_CONVERSION_SLOT 2
1339 /* A FUNCTION_DECL or OVERLOAD for the constructors for NODE. These
1340 are the constructors that take an in-charge parameter. */
1341 #define CLASSTYPE_CONSTRUCTORS(NODE) \
1342 (VEC_index (tree, CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_CONSTRUCTOR_SLOT))
1344 /* A FUNCTION_DECL for the destructor for NODE. These are the
1345 destructors that take an in-charge parameter. If
1346 CLASSTYPE_LAZY_DESTRUCTOR is true, then this entry will be NULL
1347 until the destructor is created with lazily_declare_fn. */
1348 #define CLASSTYPE_DESTRUCTORS(NODE) \
1349 (CLASSTYPE_METHOD_VEC (NODE) \
1350 ? VEC_index (tree, CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_DESTRUCTOR_SLOT) \
1353 /* A dictionary of the nested user-defined-types (class-types, or enums)
1354 found within this class. This table includes nested member class
1356 #define CLASSTYPE_NESTED_UTDS(NODE) \
1357 (LANG_TYPE_CLASS_CHECK (NODE)->nested_udts)
1359 /* Nonzero if NODE has a primary base class, i.e., a base class with
1360 which it shares the virtual function table pointer. */
1361 #define CLASSTYPE_HAS_PRIMARY_BASE_P(NODE) \
1362 (CLASSTYPE_PRIMARY_BINFO (NODE) != NULL_TREE)
1364 /* If non-NULL, this is the binfo for the primary base class, i.e.,
1365 the base class which contains the virtual function table pointer
1367 #define CLASSTYPE_PRIMARY_BINFO(NODE) \
1368 (LANG_TYPE_CLASS_CHECK (NODE)->primary_base)
1370 /* A vector of BINFOs for the direct and indirect virtual base classes
1371 that this type uses in a post-order depth-first left-to-right
1372 order. (In other words, these bases appear in the order that they
1373 should be initialized.) */
1374 #define CLASSTYPE_VBASECLASSES(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->vbases)
1376 /* The type corresponding to NODE when NODE is used as a base class,
1377 i.e., NODE without virtual base classes. */
1379 #define CLASSTYPE_AS_BASE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->as_base)
1381 /* True iff NODE is the CLASSTYPE_AS_BASE version of some type. */
1383 #define IS_FAKE_BASE_TYPE(NODE) \
1384 (TREE_CODE (NODE) == RECORD_TYPE \
1385 && TYPE_CONTEXT (NODE) && CLASS_TYPE_P (TYPE_CONTEXT (NODE)) \
1386 && CLASSTYPE_AS_BASE (TYPE_CONTEXT (NODE)) == (NODE))
1388 /* These are the size and alignment of the type without its virtual
1389 base classes, for when we use this type as a base itself. */
1390 #define CLASSTYPE_SIZE(NODE) TYPE_SIZE (CLASSTYPE_AS_BASE (NODE))
1391 #define CLASSTYPE_SIZE_UNIT(NODE) TYPE_SIZE_UNIT (CLASSTYPE_AS_BASE (NODE))
1392 #define CLASSTYPE_ALIGN(NODE) TYPE_ALIGN (CLASSTYPE_AS_BASE (NODE))
1393 #define CLASSTYPE_USER_ALIGN(NODE) TYPE_USER_ALIGN (CLASSTYPE_AS_BASE (NODE))
1395 /* The alignment of NODE, without its virtual bases, in bytes. */
1396 #define CLASSTYPE_ALIGN_UNIT(NODE) \
1397 (CLASSTYPE_ALIGN (NODE) / BITS_PER_UNIT)
1399 /* True if this a Java interface type, declared with
1400 '__attribute__ ((java_interface))'. */
1401 #define TYPE_JAVA_INTERFACE(NODE) \
1402 (LANG_TYPE_CLASS_CHECK (NODE)->java_interface)
1404 /* A VEC(tree) of virtual functions which cannot be inherited by
1405 derived classes. When deriving from this type, the derived
1406 class must provide its own definition for each of these functions. */
1407 #define CLASSTYPE_PURE_VIRTUALS(NODE) \
1408 (LANG_TYPE_CLASS_CHECK (NODE)->pure_virtuals)
1410 /* Nonzero means that this type has an X() constructor. */
1411 #define TYPE_HAS_DEFAULT_CONSTRUCTOR(NODE) \
1412 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_default_ctor)
1414 /* Nonzero means that this type contains a mutable member. */
1415 #define CLASSTYPE_HAS_MUTABLE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_mutable)
1416 #define TYPE_HAS_MUTABLE_P(NODE) (cp_has_mutable_p (NODE))
1418 /* Nonzero means that this class type is a non-POD class. */
1419 #define CLASSTYPE_NON_POD_P(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->non_pod_class)
1421 /* Nonzero means that this class contains pod types whose default
1422 initialization is not a zero initialization (namely, pointers to
1424 #define CLASSTYPE_NON_ZERO_INIT_P(NODE) \
1425 (LANG_TYPE_CLASS_CHECK (NODE)->non_zero_init)
1427 /* Nonzero if this class is "empty" in the sense of the C++ ABI. */
1428 #define CLASSTYPE_EMPTY_P(NODE) \
1429 (LANG_TYPE_CLASS_CHECK (NODE)->empty_p)
1431 /* Nonzero if this class is "nearly empty", i.e., contains only a
1432 virtual function table pointer. */
1433 #define CLASSTYPE_NEARLY_EMPTY_P(NODE) \
1434 (LANG_TYPE_CLASS_CHECK (NODE)->nearly_empty_p)
1436 /* Nonzero if this class contains an empty subobject. */
1437 #define CLASSTYPE_CONTAINS_EMPTY_CLASS_P(NODE) \
1438 (LANG_TYPE_CLASS_CHECK (NODE)->contains_empty_class_p)
1440 /* A list of class types of which this type is a friend. The
1441 TREE_VALUE is normally a TYPE, but will be a TEMPLATE_DECL in the
1442 case of a template friend. */
1443 #define CLASSTYPE_FRIEND_CLASSES(NODE) \
1444 (LANG_TYPE_CLASS_CHECK (NODE)->friend_classes)
1446 /* A list of the classes which grant friendship to this class. */
1447 #define CLASSTYPE_BEFRIENDING_CLASSES(NODE) \
1448 (LANG_TYPE_CLASS_CHECK (NODE)->befriending_classes)
1450 /* Say whether this node was declared as a "class" or a "struct". */
1451 #define CLASSTYPE_DECLARED_CLASS(NODE) \
1452 (LANG_TYPE_CLASS_CHECK (NODE)->declared_class)
1454 /* Nonzero if this class has const members
1455 which have no specified initialization. */
1456 #define CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE) \
1457 (TYPE_LANG_SPECIFIC (NODE) \
1458 ? LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init : 0)
1459 #define SET_CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE, VALUE) \
1460 (LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init = (VALUE))
1462 /* Nonzero if this class has ref members
1463 which have no specified initialization. */
1464 #define CLASSTYPE_REF_FIELDS_NEED_INIT(NODE) \
1465 (TYPE_LANG_SPECIFIC (NODE) \
1466 ? LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init : 0)
1467 #define SET_CLASSTYPE_REF_FIELDS_NEED_INIT(NODE, VALUE) \
1468 (LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init = (VALUE))
1470 /* Nonzero if this class is included from a header file which employs
1471 `#pragma interface', and it is not included in its implementation file. */
1472 #define CLASSTYPE_INTERFACE_ONLY(NODE) \
1473 (LANG_TYPE_CLASS_CHECK (NODE)->interface_only)
1475 /* True if we have already determined whether or not vtables, VTTs,
1476 typeinfo, and other similar per-class data should be emitted in
1477 this translation unit. This flag does not indicate whether or not
1478 these items should be emitted; it only indicates that we know one
1479 way or the other. */
1480 #define CLASSTYPE_INTERFACE_KNOWN(NODE) \
1481 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown == 0)
1482 /* The opposite of CLASSTYPE_INTERFACE_KNOWN. */
1483 #define CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1484 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown)
1486 #define SET_CLASSTYPE_INTERFACE_UNKNOWN_X(NODE,X) \
1487 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = !!(X))
1488 #define SET_CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1489 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 1)
1490 #define SET_CLASSTYPE_INTERFACE_KNOWN(NODE) \
1491 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 0)
1493 /* Nonzero if a _DECL node requires us to output debug info for this class. */
1494 #define CLASSTYPE_DEBUG_REQUESTED(NODE) \
1495 (LANG_TYPE_CLASS_CHECK (NODE)->debug_requested)
1497 /* Additional macros for inheritance information. */
1499 /* Nonzero means that this class is on a path leading to a new vtable. */
1500 #define BINFO_VTABLE_PATH_MARKED(NODE) BINFO_FLAG_1 (NODE)
1502 /* Nonzero means B (a BINFO) has its own vtable. Any copies will not
1503 have this flag set. */
1504 #define BINFO_NEW_VTABLE_MARKED(B) (BINFO_FLAG_2 (B))
1506 /* Compare a BINFO_TYPE with another type for equality. For a binfo,
1507 this is functionally equivalent to using same_type_p, but
1508 measurably faster. At least one of the arguments must be a
1509 BINFO_TYPE. The other can be a BINFO_TYPE or a regular type. If
1510 BINFO_TYPE(T) ever stops being the main variant of the class the
1511 binfo is for, this macro must change. */
1512 #define SAME_BINFO_TYPE_P(A, B) ((A) == (B))
1514 /* Any subobject that needs a new vtable must have a vptr and must not
1515 be a non-virtual primary base (since it would then use the vtable from a
1516 derived class and never become non-primary.) */
1517 #define SET_BINFO_NEW_VTABLE_MARKED(B) \
1518 (BINFO_NEW_VTABLE_MARKED (B) = 1, \
1519 gcc_assert (!BINFO_PRIMARY_P (B) || BINFO_VIRTUAL_P (B)), \
1520 gcc_assert (TYPE_VFIELD (BINFO_TYPE (B))))
1522 /* Nonzero if this binfo is for a dependent base - one that should not
1524 #define BINFO_DEPENDENT_BASE_P(NODE) BINFO_FLAG_3 (NODE)
1526 /* Nonzero if this binfo has lost its primary base binfo (because that
1527 is a nearly-empty virtual base that has been taken by some other
1528 base in the complete hierarchy. */
1529 #define BINFO_LOST_PRIMARY_P(NODE) BINFO_FLAG_4 (NODE)
1531 /* Nonzero if this BINFO is a primary base class. */
1532 #define BINFO_PRIMARY_P(NODE) BINFO_FLAG_5(NODE)
1534 /* Used by various search routines. */
1535 #define IDENTIFIER_MARKED(NODE) TREE_LANG_FLAG_0 (NODE)
1537 /* A VEC(tree_pair_s) of the vcall indices associated with the class
1538 NODE. The PURPOSE of each element is a FUNCTION_DECL for a virtual
1539 function. The VALUE is the index into the virtual table where the
1540 vcall offset for that function is stored, when NODE is a virtual
1542 #define CLASSTYPE_VCALL_INDICES(NODE) \
1543 (LANG_TYPE_CLASS_CHECK (NODE)->vcall_indices)
1545 /* The various vtables for the class NODE. The primary vtable will be
1546 first, followed by the construction vtables and VTT, if any. */
1547 #define CLASSTYPE_VTABLES(NODE) \
1548 (LANG_TYPE_CLASS_CHECK (NODE)->vtables)
1550 /* The std::type_info variable representing this class, or NULL if no
1551 such variable has been created. This field is only set for the
1552 TYPE_MAIN_VARIANT of the class. */
1553 #define CLASSTYPE_TYPEINFO_VAR(NODE) \
1554 (LANG_TYPE_CLASS_CHECK (NODE)->typeinfo_var)
1556 /* Accessor macros for the BINFO_VIRTUALS list. */
1558 /* The number of bytes by which to adjust the `this' pointer when
1559 calling this virtual function. Subtract this value from the this
1560 pointer. Always non-NULL, might be constant zero though. */
1561 #define BV_DELTA(NODE) (TREE_PURPOSE (NODE))
1563 /* If non-NULL, the vtable index at which to find the vcall offset
1564 when calling this virtual function. Add the value at that vtable
1565 index to the this pointer. */
1566 #define BV_VCALL_INDEX(NODE) (TREE_TYPE (NODE))
1568 /* The function to call. */
1569 #define BV_FN(NODE) (TREE_VALUE (NODE))
1572 /* For FUNCTION_TYPE or METHOD_TYPE, a list of the exceptions that
1573 this type can raise. Each TREE_VALUE is a _TYPE. The TREE_VALUE
1574 will be NULL_TREE to indicate a throw specification of `()', or
1575 no exceptions allowed. */
1576 #define TYPE_RAISES_EXCEPTIONS(NODE) TYPE_LANG_SLOT_1 (NODE)
1578 /* For FUNCTION_TYPE or METHOD_TYPE, return 1 iff it is declared `throw()'. */
1579 #define TYPE_NOTHROW_P(NODE) \
1580 (TYPE_RAISES_EXCEPTIONS (NODE) \
1581 && TREE_VALUE (TYPE_RAISES_EXCEPTIONS (NODE)) == NULL_TREE)
1583 /* The binding level associated with the namespace. */
1584 #define NAMESPACE_LEVEL(NODE) \
1585 (DECL_LANG_SPECIFIC (NODE)->decl_flags.u.level)
1588 /* If a DECL has DECL_LANG_SPECIFIC, it is either a lang_decl_flags or
1589 a lang_decl (which has lang_decl_flags as its initial prefix).
1590 This macro is nonzero for tree nodes whose DECL_LANG_SPECIFIC is
1591 the full lang_decl, and not just lang_decl_flags. Keep these
1592 checks in ascending code order. */
1593 #define CAN_HAVE_FULL_LANG_DECL_P(NODE) \
1594 (!(TREE_CODE (NODE) == FIELD_DECL \
1595 || TREE_CODE (NODE) == VAR_DECL \
1596 || TREE_CODE (NODE) == CONST_DECL \
1597 || TREE_CODE (NODE) == USING_DECL))
1599 struct lang_decl_flags GTY(())
1601 ENUM_BITFIELD(languages) language : 4;
1602 unsigned global_ctor_p : 1;
1603 unsigned global_dtor_p : 1;
1604 unsigned anticipated_p : 1;
1605 unsigned template_conv_p : 1;
1607 unsigned operator_attr : 1;
1608 unsigned constructor_attr : 1;
1609 unsigned destructor_attr : 1;
1610 unsigned friend_attr : 1;
1611 unsigned static_function : 1;
1612 unsigned pure_virtual : 1;
1613 unsigned has_in_charge_parm_p : 1;
1614 unsigned has_vtt_parm_p : 1;
1616 unsigned deferred : 1;
1617 unsigned use_template : 2;
1618 unsigned nonconverting : 1;
1619 unsigned not_really_extern : 1;
1620 unsigned initialized_in_class : 1;
1621 unsigned assignment_operator_p : 1;
1625 unsigned can_be_full : 1;
1626 unsigned thunk_p : 1;
1627 unsigned this_thunk_p : 1;
1628 unsigned repo_available_p : 1;
1629 unsigned hidden_friend_p : 1;
1630 unsigned threadprivate_or_deleted_p : 1;
1631 unsigned defaulted_p : 1;
1634 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
1636 In a FUNCTION_DECL for which DECL_THUNK_P does not hold,
1637 VAR_DECL, TYPE_DECL, or TEMPLATE_DECL, this is
1638 DECL_TEMPLATE_INFO. */
1639 tree GTY ((tag ("0"))) template_info;
1641 /* In a NAMESPACE_DECL, this is NAMESPACE_LEVEL. */
1642 struct cp_binding_level * GTY ((tag ("1"))) level;
1643 } GTY ((desc ("%1.u1sel"))) u;
1645 union lang_decl_u2 {
1646 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
1647 THUNK_VIRTUAL_OFFSET.
1648 Otherwise this is DECL_ACCESS. */
1649 tree GTY ((tag ("0"))) access;
1651 /* For VAR_DECL in function, this is DECL_DISCRIMINATOR. */
1652 int GTY ((tag ("1"))) discriminator;
1653 } GTY ((desc ("%1.u2sel"))) u2;
1656 /* sorted_fields is sorted based on a pointer, so we need to be able
1657 to resort it if pointers get rearranged. */
1659 struct lang_decl GTY(())
1661 struct lang_decl_flags decl_flags;
1665 struct full_lang_decl
1667 /* In an overloaded operator, this is the value of
1668 DECL_OVERLOADED_OPERATOR_P. */
1669 ENUM_BITFIELD (tree_code) operator_code : 16;
1672 unsigned pending_inline_p : 1;
1673 unsigned spare : 14;
1675 /* For a non-thunk function decl, this is a tree list of
1676 friendly classes. For a thunk function decl, it is the
1677 thunked to function decl. */
1678 tree befriending_classes;
1680 /* For a non-virtual FUNCTION_DECL, this is
1681 DECL_FRIEND_CONTEXT. For a virtual FUNCTION_DECL for which
1682 DECL_THIS_THUNK_P does not hold, this is DECL_THUNKS. Both
1683 this pointer and result pointer adjusting thunks are
1684 chained here. This pointer thunks to return pointer thunks
1685 will be chained on the return pointer thunk. */
1690 /* In a non-thunk FUNCTION_DECL or TEMPLATE_DECL, this is
1691 DECL_CLONED_FUNCTION. */
1692 tree GTY ((tag ("0"))) cloned_function;
1694 /* In a FUNCTION_DECL for which THUNK_P holds this is the
1695 THUNK_FIXED_OFFSET. */
1696 HOST_WIDE_INT GTY ((tag ("1"))) fixed_offset;
1697 } GTY ((desc ("%0.decl_flags.thunk_p"))) u5;
1701 struct sorted_fields_type * GTY ((tag ("0"), reorder ("resort_sorted_fields")))
1703 struct cp_token_cache * GTY ((tag ("2"))) pending_inline_info;
1704 struct language_function * GTY ((tag ("1")))
1705 saved_language_function;
1706 } GTY ((desc ("%1.u3sel + %1.pending_inline_p"))) u;
1707 } GTY ((tag ("1"))) f;
1708 } GTY ((desc ("%1.decl_flags.can_be_full"))) u;
1711 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1713 #define LANG_DECL_U2_CHECK(NODE, TF) __extension__ \
1714 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
1715 if (lt->decl_flags.u2sel != TF) \
1716 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1717 <->decl_flags.u2; })
1721 #define LANG_DECL_U2_CHECK(NODE, TF) \
1722 (&DECL_LANG_SPECIFIC (NODE)->decl_flags.u2)
1724 #endif /* ENABLE_TREE_CHECKING */
1726 /* For a FUNCTION_DECL or a VAR_DECL, the language linkage for the
1727 declaration. Some entities (like a member function in a local
1728 class, or a local variable) do not have linkage at all, and this
1729 macro should not be used in those cases.
1731 Implementation note: A FUNCTION_DECL without DECL_LANG_SPECIFIC was
1732 created by language-independent code, and has C linkage. Most
1733 VAR_DECLs have C++ linkage, and do not have DECL_LANG_SPECIFIC, but
1734 we do create DECL_LANG_SPECIFIC for variables with non-C++ linkage. */
1735 #define DECL_LANGUAGE(NODE) \
1736 (DECL_LANG_SPECIFIC (NODE) \
1737 ? DECL_LANG_SPECIFIC (NODE)->decl_flags.language \
1738 : (TREE_CODE (NODE) == FUNCTION_DECL \
1739 ? lang_c : lang_cplusplus))
1741 /* Set the language linkage for NODE to LANGUAGE. */
1742 #define SET_DECL_LANGUAGE(NODE, LANGUAGE) \
1743 (DECL_LANG_SPECIFIC (NODE)->decl_flags.language = (LANGUAGE))
1745 /* For FUNCTION_DECLs: nonzero means that this function is a constructor. */
1746 #define DECL_CONSTRUCTOR_P(NODE) \
1747 (DECL_LANG_SPECIFIC (NODE)->decl_flags.constructor_attr)
1749 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a complete
1751 #define DECL_COMPLETE_CONSTRUCTOR_P(NODE) \
1752 (DECL_CONSTRUCTOR_P (NODE) \
1753 && DECL_NAME (NODE) == complete_ctor_identifier)
1755 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a base
1757 #define DECL_BASE_CONSTRUCTOR_P(NODE) \
1758 (DECL_CONSTRUCTOR_P (NODE) \
1759 && DECL_NAME (NODE) == base_ctor_identifier)
1761 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor, but not either the
1762 specialized in-charge constructor or the specialized not-in-charge
1764 #define DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P(NODE) \
1765 (DECL_CONSTRUCTOR_P (NODE) && !DECL_CLONED_FUNCTION_P (NODE))
1767 /* Nonzero if NODE (a FUNCTION_DECL) is a copy constructor. */
1768 #define DECL_COPY_CONSTRUCTOR_P(NODE) \
1769 (DECL_CONSTRUCTOR_P (NODE) && copy_fn_p (NODE) > 0)
1771 /* Nonzero if NODE (a FUNCTION_DECL) is a move constructor. */
1772 #define DECL_MOVE_CONSTRUCTOR_P(NODE) \
1773 (DECL_CONSTRUCTOR_P (NODE) && move_fn_p (NODE))
1775 /* Nonzero if NODE is a destructor. */
1776 #define DECL_DESTRUCTOR_P(NODE) \
1777 (DECL_LANG_SPECIFIC (NODE)->decl_flags.destructor_attr)
1779 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor, but not the
1780 specialized in-charge constructor, in-charge deleting constructor,
1781 or the base destructor. */
1782 #define DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P(NODE) \
1783 (DECL_DESTRUCTOR_P (NODE) && !DECL_CLONED_FUNCTION_P (NODE))
1785 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
1787 #define DECL_COMPLETE_DESTRUCTOR_P(NODE) \
1788 (DECL_DESTRUCTOR_P (NODE) \
1789 && DECL_NAME (NODE) == complete_dtor_identifier)
1791 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a base
1793 #define DECL_BASE_DESTRUCTOR_P(NODE) \
1794 (DECL_DESTRUCTOR_P (NODE) \
1795 && DECL_NAME (NODE) == base_dtor_identifier)
1797 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
1798 object that deletes the object after it has been destroyed. */
1799 #define DECL_DELETING_DESTRUCTOR_P(NODE) \
1800 (DECL_DESTRUCTOR_P (NODE) \
1801 && DECL_NAME (NODE) == deleting_dtor_identifier)
1803 /* Nonzero if NODE (a FUNCTION_DECL) is a cloned constructor or
1805 #define DECL_CLONED_FUNCTION_P(NODE) \
1806 ((TREE_CODE (NODE) == FUNCTION_DECL \
1807 || TREE_CODE (NODE) == TEMPLATE_DECL) \
1808 && DECL_LANG_SPECIFIC (NODE) \
1809 && !DECL_LANG_SPECIFIC (NODE)->decl_flags.thunk_p \
1810 && DECL_CLONED_FUNCTION (NODE) != NULL_TREE)
1812 /* If DECL_CLONED_FUNCTION_P holds, this is the function that was
1814 #define DECL_CLONED_FUNCTION(NODE) \
1815 (DECL_LANG_SPECIFIC (NON_THUNK_FUNCTION_CHECK(NODE))->u.f.u5.cloned_function)
1817 /* Perform an action for each clone of FN, if FN is a function with
1818 clones. This macro should be used like:
1820 FOR_EACH_CLONE (clone, fn)
1824 #define FOR_EACH_CLONE(CLONE, FN) \
1825 if (TREE_CODE (FN) == FUNCTION_DECL \
1826 && (DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (FN) \
1827 || DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (FN))) \
1828 for (CLONE = TREE_CHAIN (FN); \
1829 CLONE && DECL_CLONED_FUNCTION_P (CLONE); \
1830 CLONE = TREE_CHAIN (CLONE))
1832 /* Nonzero if NODE has DECL_DISCRIMINATOR and not DECL_ACCESS. */
1833 #define DECL_DISCRIMINATOR_P(NODE) \
1834 (TREE_CODE (NODE) == VAR_DECL \
1835 && DECL_FUNCTION_SCOPE_P (NODE))
1837 /* Discriminator for name mangling. */
1838 #define DECL_DISCRIMINATOR(NODE) (LANG_DECL_U2_CHECK (NODE, 1)->discriminator)
1840 /* Nonzero if the VTT parm has been added to NODE. */
1841 #define DECL_HAS_VTT_PARM_P(NODE) \
1842 (DECL_LANG_SPECIFIC (NODE)->decl_flags.has_vtt_parm_p)
1844 /* Nonzero if NODE is a FUNCTION_DECL for which a VTT parameter is
1846 #define DECL_NEEDS_VTT_PARM_P(NODE) \
1847 (CLASSTYPE_VBASECLASSES (DECL_CONTEXT (NODE)) \
1848 && (DECL_BASE_CONSTRUCTOR_P (NODE) \
1849 || DECL_BASE_DESTRUCTOR_P (NODE)))
1851 /* Nonzero if NODE is a user-defined conversion operator. */
1852 #define DECL_CONV_FN_P(NODE) \
1853 (DECL_NAME (NODE) && IDENTIFIER_TYPENAME_P (DECL_NAME (NODE)))
1855 /* If FN is a conversion operator, the type to which it converts.
1856 Otherwise, NULL_TREE. */
1857 #define DECL_CONV_FN_TYPE(FN) \
1858 (DECL_CONV_FN_P (FN) ? TREE_TYPE (DECL_NAME (FN)) : NULL_TREE)
1860 /* Nonzero if NODE, which is a TEMPLATE_DECL, is a template
1861 conversion operator to a type dependent on the innermost template
1863 #define DECL_TEMPLATE_CONV_FN_P(NODE) \
1864 (DECL_LANG_SPECIFIC (NODE)->decl_flags.template_conv_p)
1866 /* Set the overloaded operator code for NODE to CODE. */
1867 #define SET_OVERLOADED_OPERATOR_CODE(NODE, CODE) \
1868 (DECL_LANG_SPECIFIC (NODE)->u.f.operator_code = (CODE))
1870 /* If NODE is an overloaded operator, then this returns the TREE_CODE
1871 associated with the overloaded operator.
1872 DECL_ASSIGNMENT_OPERATOR_P must also be checked to determine
1873 whether or not NODE is an assignment operator. If NODE is not an
1874 overloaded operator, ERROR_MARK is returned. Since the numerical
1875 value of ERROR_MARK is zero, this macro can be used as a predicate
1876 to test whether or not NODE is an overloaded operator. */
1877 #define DECL_OVERLOADED_OPERATOR_P(NODE) \
1878 (IDENTIFIER_OPNAME_P (DECL_NAME (NODE)) \
1879 ? DECL_LANG_SPECIFIC (NODE)->u.f.operator_code : ERROR_MARK)
1881 /* Nonzero if NODE is an assignment operator (including += and such). */
1882 #define DECL_ASSIGNMENT_OPERATOR_P(NODE) \
1883 (DECL_LANG_SPECIFIC (NODE)->decl_flags.assignment_operator_p)
1885 /* For FUNCTION_DECLs: nonzero means that this function is a
1886 constructor or a destructor with an extra in-charge parameter to
1887 control whether or not virtual bases are constructed. */
1888 #define DECL_HAS_IN_CHARGE_PARM_P(NODE) \
1889 (DECL_LANG_SPECIFIC (NODE)->decl_flags.has_in_charge_parm_p)
1891 /* Nonzero if DECL is a declaration of __builtin_constant_p. */
1892 #define DECL_IS_BUILTIN_CONSTANT_P(NODE) \
1893 (TREE_CODE (NODE) == FUNCTION_DECL \
1894 && DECL_BUILT_IN_CLASS (NODE) == BUILT_IN_NORMAL \
1895 && DECL_FUNCTION_CODE (NODE) == BUILT_IN_CONSTANT_P)
1897 /* Nonzero for _DECL means that this decl appears in (or will appear
1898 in) as a member in a RECORD_TYPE or UNION_TYPE node. It is also for
1899 detecting circularity in case members are multiply defined. In the
1900 case of a VAR_DECL, it is also used to determine how program storage
1901 should be allocated. */
1902 #define DECL_IN_AGGR_P(NODE) (DECL_LANG_FLAG_3 (NODE))
1904 /* Nonzero for a VAR_DECL means that the variable's initialization (if
1905 any) has been processed. (In general, DECL_INITIALIZED_P is
1906 !DECL_EXTERN, but static data members may be initialized even if
1908 #define DECL_INITIALIZED_P(NODE) \
1909 (TREE_LANG_FLAG_1 (VAR_DECL_CHECK (NODE)))
1911 /* Nonzero for a VAR_DECL iff an explicit initializer was provided. */
1912 #define DECL_NONTRIVIALLY_INITIALIZED_P(NODE) \
1913 (TREE_LANG_FLAG_3 (VAR_DECL_CHECK (NODE)))
1915 /* Nonzero for a VAR_DECL that was initialized with a
1916 constant-expression. */
1917 #define DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P(NODE) \
1918 (TREE_LANG_FLAG_2 (VAR_DECL_CHECK (NODE)))
1920 /* Nonzero for a VAR_DECL that can be used in an integral constant
1925 An integral constant-expression can only involve ... const
1926 variables of static or enumeration types initialized with
1927 constant expressions ...
1929 The standard does not require that the expression be non-volatile.
1930 G++ implements the proposed correction in DR 457. */
1931 #define DECL_INTEGRAL_CONSTANT_VAR_P(NODE) \
1932 (TREE_CODE (NODE) == VAR_DECL \
1933 && CP_TYPE_CONST_NON_VOLATILE_P (TREE_TYPE (NODE)) \
1934 && INTEGRAL_OR_ENUMERATION_TYPE_P (TREE_TYPE (NODE)) \
1935 && DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (NODE))
1937 /* Nonzero if the DECL was initialized in the class definition itself,
1938 rather than outside the class. This is used for both static member
1939 VAR_DECLS, and FUNCTION_DECLS that are defined in the class. */
1940 #define DECL_INITIALIZED_IN_CLASS_P(DECL) \
1941 (DECL_LANG_SPECIFIC (DECL)->decl_flags.initialized_in_class)
1943 /* Nonzero for DECL means that this decl is just a friend declaration,
1944 and should not be added to the list of members for this class. */
1945 #define DECL_FRIEND_P(NODE) (DECL_LANG_SPECIFIC (NODE)->decl_flags.friend_attr)
1947 /* A TREE_LIST of the types which have befriended this FUNCTION_DECL. */
1948 #define DECL_BEFRIENDING_CLASSES(NODE) \
1949 (DECL_LANG_SPECIFIC (NODE)->u.f.befriending_classes)
1951 /* Nonzero for FUNCTION_DECL means that this decl is a static
1953 #define DECL_STATIC_FUNCTION_P(NODE) \
1954 (DECL_LANG_SPECIFIC (NODE)->decl_flags.static_function)
1956 /* Nonzero for FUNCTION_DECL means that this decl is a non-static
1958 #define DECL_NONSTATIC_MEMBER_FUNCTION_P(NODE) \
1959 (TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE)
1961 /* Nonzero for FUNCTION_DECL means that this decl is a member function
1962 (static or non-static). */
1963 #define DECL_FUNCTION_MEMBER_P(NODE) \
1964 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) || DECL_STATIC_FUNCTION_P (NODE))
1966 /* Nonzero for FUNCTION_DECL means that this member function
1967 has `this' as const X *const. */
1968 #define DECL_CONST_MEMFUNC_P(NODE) \
1969 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
1970 && CP_TYPE_CONST_P (TREE_TYPE (TREE_VALUE \
1971 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
1973 /* Nonzero for FUNCTION_DECL means that this member function
1974 has `this' as volatile X *const. */
1975 #define DECL_VOLATILE_MEMFUNC_P(NODE) \
1976 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
1977 && CP_TYPE_VOLATILE_P (TREE_TYPE (TREE_VALUE \
1978 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
1980 /* Nonzero for a DECL means that this member is a non-static member. */
1981 #define DECL_NONSTATIC_MEMBER_P(NODE) \
1982 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
1983 || TREE_CODE (NODE) == FIELD_DECL)
1985 /* Nonzero for _DECL means that this member object type
1987 #define DECL_MUTABLE_P(NODE) (DECL_LANG_FLAG_0 (NODE))
1989 /* Nonzero for _DECL means that this constructor is a non-converting
1991 #define DECL_NONCONVERTING_P(NODE) \
1992 (DECL_LANG_SPECIFIC (NODE)->decl_flags.nonconverting)
1994 /* Nonzero for FUNCTION_DECL means that this member function is a pure
1995 virtual function. */
1996 #define DECL_PURE_VIRTUAL_P(NODE) \
1997 (DECL_LANG_SPECIFIC (NODE)->decl_flags.pure_virtual)
1999 /* True (in a FUNCTION_DECL) if NODE is a virtual function that is an
2000 invalid overrider for a function from a base class. Once we have
2001 complained about an invalid overrider we avoid complaining about it
2003 #define DECL_INVALID_OVERRIDER_P(NODE) \
2004 (DECL_LANG_FLAG_4 (NODE))
2006 /* The thunks associated with NODE, a FUNCTION_DECL. */
2007 #define DECL_THUNKS(NODE) \
2008 (DECL_LANG_SPECIFIC (NODE)->u.f.context)
2010 /* Nonzero if NODE is a thunk, rather than an ordinary function. */
2011 #define DECL_THUNK_P(NODE) \
2012 (TREE_CODE (NODE) == FUNCTION_DECL \
2013 && DECL_LANG_SPECIFIC (NODE) \
2014 && DECL_LANG_SPECIFIC (NODE)->decl_flags.thunk_p)
2016 /* Set DECL_THUNK_P for node. */
2017 #define SET_DECL_THUNK_P(NODE, THIS_ADJUSTING) \
2018 (DECL_LANG_SPECIFIC (NODE)->decl_flags.thunk_p = 1, \
2019 DECL_LANG_SPECIFIC (NODE)->u.f.u3sel = 1, \
2020 DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p = (THIS_ADJUSTING))
2022 /* Nonzero if NODE is a this pointer adjusting thunk. */
2023 #define DECL_THIS_THUNK_P(NODE) \
2024 (DECL_THUNK_P (NODE) && DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p)
2026 /* Nonzero if NODE is a result pointer adjusting thunk. */
2027 #define DECL_RESULT_THUNK_P(NODE) \
2028 (DECL_THUNK_P (NODE) && !DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p)
2030 /* Nonzero if NODE is a FUNCTION_DECL, but not a thunk. */
2031 #define DECL_NON_THUNK_FUNCTION_P(NODE) \
2032 (TREE_CODE (NODE) == FUNCTION_DECL && !DECL_THUNK_P (NODE))
2034 /* Nonzero if NODE is `extern "C"'. */
2035 #define DECL_EXTERN_C_P(NODE) \
2036 (DECL_LANGUAGE (NODE) == lang_c)
2038 /* Nonzero if NODE is an `extern "C"' function. */
2039 #define DECL_EXTERN_C_FUNCTION_P(NODE) \
2040 (DECL_NON_THUNK_FUNCTION_P (NODE) && DECL_EXTERN_C_P (NODE))
2042 /* True iff DECL is an entity with vague linkage whose definition is
2043 available in this translation unit. */
2044 #define DECL_REPO_AVAILABLE_P(NODE) \
2045 (DECL_LANG_SPECIFIC (NODE)->decl_flags.repo_available_p)
2047 /* Nonzero if this DECL is the __PRETTY_FUNCTION__ variable in a
2048 template function. */
2049 #define DECL_PRETTY_FUNCTION_P(NODE) \
2050 (TREE_LANG_FLAG_0 (VAR_DECL_CHECK (NODE)))
2052 /* The _TYPE context in which this _DECL appears. This field holds the
2053 class where a virtual function instance is actually defined. */
2054 #define DECL_CLASS_CONTEXT(NODE) \
2055 (DECL_CLASS_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : NULL_TREE)
2057 /* For a non-member friend function, the class (if any) in which this
2058 friend was defined. For example, given:
2060 struct S { friend void f (); };
2062 the DECL_FRIEND_CONTEXT for `f' will be `S'. */
2063 #define DECL_FRIEND_CONTEXT(NODE) \
2064 ((DECL_FRIEND_P (NODE) && !DECL_FUNCTION_MEMBER_P (NODE)) \
2065 ? DECL_LANG_SPECIFIC (NODE)->u.f.context \
2068 /* Set the DECL_FRIEND_CONTEXT for NODE to CONTEXT. */
2069 #define SET_DECL_FRIEND_CONTEXT(NODE, CONTEXT) \
2070 (DECL_LANG_SPECIFIC (NODE)->u.f.context = (CONTEXT))
2072 /* NULL_TREE in DECL_CONTEXT represents the global namespace. */
2073 #define CP_DECL_CONTEXT(NODE) \
2074 (DECL_CONTEXT (NODE) ? DECL_CONTEXT (NODE) : global_namespace)
2075 #define CP_TYPE_CONTEXT(NODE) \
2076 (TYPE_CONTEXT (NODE) ? TYPE_CONTEXT (NODE) : global_namespace)
2077 #define FROB_CONTEXT(NODE) ((NODE) == global_namespace ? NULL_TREE : (NODE))
2079 /* 1 iff NODE has namespace scope, including the global namespace. */
2080 #define DECL_NAMESPACE_SCOPE_P(NODE) \
2081 (!DECL_TEMPLATE_PARM_P (NODE) \
2082 && TREE_CODE (CP_DECL_CONTEXT (NODE)) == NAMESPACE_DECL)
2084 /* 1 iff NODE is a class member. */
2085 #define DECL_CLASS_SCOPE_P(NODE) \
2086 (DECL_CONTEXT (NODE) && TYPE_P (DECL_CONTEXT (NODE)))
2088 #define TYPE_CLASS_SCOPE_P(NODE) \
2089 (TYPE_CONTEXT (NODE) && TYPE_P (TYPE_CONTEXT (NODE)))
2091 /* 1 iff NODE is function-local. */
2092 #define DECL_FUNCTION_SCOPE_P(NODE) \
2093 (DECL_CONTEXT (NODE) \
2094 && TREE_CODE (DECL_CONTEXT (NODE)) == FUNCTION_DECL)
2096 /* 1 iff VAR_DECL node NODE is a type-info decl. This flag is set for
2097 both the primary typeinfo object and the associated NTBS name. */
2098 #define DECL_TINFO_P(NODE) TREE_LANG_FLAG_4 (VAR_DECL_CHECK (NODE))
2100 /* 1 iff VAR_DECL node NODE is virtual table or VTT. */
2101 #define DECL_VTABLE_OR_VTT_P(NODE) TREE_LANG_FLAG_5 (VAR_DECL_CHECK (NODE))
2103 /* Returns 1 iff VAR_DECL is a construction virtual table.
2104 DECL_VTABLE_OR_VTT_P will be true in this case and must be checked
2105 before using this macro. */
2106 #define DECL_CONSTRUCTION_VTABLE_P(NODE) \
2107 TREE_LANG_FLAG_6 (VAR_DECL_CHECK (NODE))
2109 /* 1 iff NODE is function-local, but for types. */
2110 #define LOCAL_CLASS_P(NODE) \
2111 (decl_function_context (TYPE_MAIN_DECL (NODE)) != NULL_TREE)
2113 /* For a NAMESPACE_DECL: the list of using namespace directives
2114 The PURPOSE is the used namespace, the value is the namespace
2115 that is the common ancestor. */
2116 #define DECL_NAMESPACE_USING(NODE) DECL_VINDEX (NAMESPACE_DECL_CHECK (NODE))
2118 /* In a NAMESPACE_DECL, the DECL_INITIAL is used to record all users
2119 of a namespace, to record the transitive closure of using namespace. */
2120 #define DECL_NAMESPACE_USERS(NODE) DECL_INITIAL (NAMESPACE_DECL_CHECK (NODE))
2122 /* In a NAMESPACE_DECL, the list of namespaces which have associated
2123 themselves with this one. */
2124 #define DECL_NAMESPACE_ASSOCIATIONS(NODE) \
2125 (NAMESPACE_DECL_CHECK (NODE)->decl_non_common.saved_tree)
2127 /* In a NAMESPACE_DECL, points to the original namespace if this is
2128 a namespace alias. */
2129 #define DECL_NAMESPACE_ALIAS(NODE) \
2130 DECL_ABSTRACT_ORIGIN (NAMESPACE_DECL_CHECK (NODE))
2131 #define ORIGINAL_NAMESPACE(NODE) \
2132 (DECL_NAMESPACE_ALIAS (NODE) ? DECL_NAMESPACE_ALIAS (NODE) : (NODE))
2134 /* Nonzero if NODE is the std namespace. */
2135 #define DECL_NAMESPACE_STD_P(NODE) \
2136 (TREE_CODE (NODE) == NAMESPACE_DECL \
2137 && CP_DECL_CONTEXT (NODE) == global_namespace \
2138 && DECL_NAME (NODE) == std_identifier)
2140 /* In a TREE_LIST concatenating using directives, indicate indirect
2142 #define TREE_INDIRECT_USING(NODE) (TREE_LIST_CHECK (NODE)->base.lang_flag_0)
2144 /* In a TREE_LIST in an attribute list, indicates that the attribute
2145 must be applied at instantiation time. */
2146 #define ATTR_IS_DEPENDENT(NODE) (TREE_LIST_CHECK (NODE)->base.lang_flag_0)
2148 extern tree decl_shadowed_for_var_lookup (tree);
2149 extern void decl_shadowed_for_var_insert (tree, tree);
2151 /* Non zero if this is a using decl for a dependent scope. */
2152 #define DECL_DEPENDENT_P(NODE) DECL_LANG_FLAG_0 (USING_DECL_CHECK (NODE))
2154 /* The scope named in a using decl. */
2155 #define USING_DECL_SCOPE(NODE) TREE_TYPE (USING_DECL_CHECK (NODE))
2157 /* The decls named by a using decl. */
2158 #define USING_DECL_DECLS(NODE) DECL_INITIAL (USING_DECL_CHECK (NODE))
2160 /* In a VAR_DECL, true if we have a shadowed local variable
2161 in the shadowed var table for this VAR_DECL. */
2162 #define DECL_HAS_SHADOWED_FOR_VAR_P(NODE) \
2163 (VAR_DECL_CHECK (NODE)->decl_with_vis.shadowed_for_var_p)
2165 /* In a VAR_DECL for a variable declared in a for statement,
2166 this is the shadowed (local) variable. */
2167 #define DECL_SHADOWED_FOR_VAR(NODE) \
2168 (DECL_HAS_SHADOWED_FOR_VAR_P(NODE) ? decl_shadowed_for_var_lookup (NODE) : NULL)
2170 #define SET_DECL_SHADOWED_FOR_VAR(NODE, VAL) \
2171 (decl_shadowed_for_var_insert (NODE, VAL))
2173 /* In a FUNCTION_DECL, this is nonzero if this function was defined in
2174 the class definition. We have saved away the text of the function,
2175 but have not yet processed it. */
2176 #define DECL_PENDING_INLINE_P(NODE) \
2177 (DECL_LANG_SPECIFIC (NODE)->u.f.pending_inline_p)
2179 /* If DECL_PENDING_INLINE_P holds, this is the saved text of the
2181 #define DECL_PENDING_INLINE_INFO(NODE) \
2182 (DECL_LANG_SPECIFIC (NODE)->u.f.u.pending_inline_info)
2184 /* For a TYPE_DECL: if this structure has many fields, we'll sort them
2185 and put them into a TREE_VEC. */
2186 #define DECL_SORTED_FIELDS(NODE) \
2187 (DECL_LANG_SPECIFIC (TYPE_DECL_CHECK (NODE))->u.f.u.sorted_fields)
2189 /* True if on the deferred_fns (see decl2.c) list. */
2190 #define DECL_DEFERRED_FN(DECL) \
2191 (DECL_LANG_SPECIFIC (DECL)->decl_flags.deferred)
2193 /* If non-NULL for a VAR_DECL, FUNCTION_DECL, TYPE_DECL or
2194 TEMPLATE_DECL, the entity is either a template specialization (if
2195 DECL_USE_TEMPLATE is nonzero) or the abstract instance of the
2198 In either case, DECL_TEMPLATE_INFO is a TREE_LIST, whose
2199 TREE_PURPOSE is the TEMPLATE_DECL of which this entity is a
2200 specialization or abstract instance. The TREE_VALUE is the
2201 template arguments used to specialize the template.
2205 template <typename T> struct S { friend void f(T) {} };
2207 In this case, S<int>::f is, from the point of view of the compiler,
2208 an instantiation of a template -- but, from the point of view of
2209 the language, each instantiation of S results in a wholly unrelated
2210 global function f. In this case, DECL_TEMPLATE_INFO for S<int>::f
2211 will be non-NULL, but DECL_USE_TEMPLATE will be zero. */
2212 #define DECL_TEMPLATE_INFO(NODE) \
2213 (DECL_LANG_SPECIFIC (VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK (NODE)) \
2214 ->decl_flags.u.template_info)
2216 /* For a VAR_DECL, indicates that the variable is actually a
2217 non-static data member of anonymous union that has been promoted to
2219 #define DECL_ANON_UNION_VAR_P(NODE) \
2220 (DECL_LANG_FLAG_4 (VAR_DECL_CHECK (NODE)))
2222 /* Template information for a RECORD_TYPE or UNION_TYPE. */
2223 #define CLASSTYPE_TEMPLATE_INFO(NODE) \
2224 (LANG_TYPE_CLASS_CHECK (RECORD_OR_UNION_CHECK (NODE))->template_info)
2226 /* Template information for an ENUMERAL_TYPE. Although an enumeration may
2227 not be a primary template, it may be declared within the scope of a
2228 primary template and the enumeration constants may depend on
2229 non-type template parameters. */
2230 #define ENUM_TEMPLATE_INFO(NODE) \
2231 (TYPE_LANG_SLOT_1 (ENUMERAL_TYPE_CHECK (NODE)))
2233 /* Template information for a template template parameter. */
2234 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO(NODE) \
2235 (LANG_TYPE_CLASS_CHECK (BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK (NODE)) \
2238 /* Template information for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2239 #define TYPE_TEMPLATE_INFO(NODE) \
2240 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2241 ? ENUM_TEMPLATE_INFO (NODE) : \
2242 (TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM \
2243 ? TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO (NODE) : \
2244 (TYPE_LANG_SPECIFIC (NODE) \
2245 ? CLASSTYPE_TEMPLATE_INFO (NODE) \
2248 /* Set the template information for an ENUMERAL_, RECORD_, or
2249 UNION_TYPE to VAL. */
2250 #define SET_TYPE_TEMPLATE_INFO(NODE, VAL) \
2251 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2252 ? (ENUM_TEMPLATE_INFO (NODE) = (VAL)) \
2253 : (CLASSTYPE_TEMPLATE_INFO (NODE) = (VAL)))
2255 #define TI_TEMPLATE(NODE) (TREE_PURPOSE (NODE))
2256 #define TI_ARGS(NODE) (TREE_VALUE (NODE))
2257 #define TI_PENDING_TEMPLATE_FLAG(NODE) TREE_LANG_FLAG_1 (NODE)
2259 /* We use TREE_VECs to hold template arguments. If there is only one
2260 level of template arguments, then the TREE_VEC contains the
2261 arguments directly. If there is more than one level of template
2262 arguments, then each entry in the TREE_VEC is itself a TREE_VEC,
2263 containing the template arguments for a single level. The first
2264 entry in the outer TREE_VEC is the outermost level of template
2265 parameters; the last is the innermost.
2267 It is incorrect to ever form a template argument vector containing
2268 only one level of arguments, but which is a TREE_VEC containing as
2269 its only entry the TREE_VEC for that level. */
2271 /* Nonzero if the template arguments is actually a vector of vectors,
2272 rather than just a vector. */
2273 #define TMPL_ARGS_HAVE_MULTIPLE_LEVELS(NODE) \
2274 (NODE && TREE_VEC_ELT (NODE, 0) \
2275 && TREE_CODE (TREE_VEC_ELT (NODE, 0)) == TREE_VEC)
2277 /* The depth of a template argument vector. When called directly by
2278 the parser, we use a TREE_LIST rather than a TREE_VEC to represent
2279 template arguments. In fact, we may even see NULL_TREE if there
2280 are no template arguments. In both of those cases, there is only
2281 one level of template arguments. */
2282 #define TMPL_ARGS_DEPTH(NODE) \
2283 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (NODE) ? TREE_VEC_LENGTH (NODE) : 1)
2285 /* The LEVELth level of the template ARGS. The outermost level of
2286 args is level 1, not level 0. */
2287 #define TMPL_ARGS_LEVEL(ARGS, LEVEL) \
2288 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (ARGS) \
2289 ? TREE_VEC_ELT (ARGS, (LEVEL) - 1) : (ARGS))
2291 /* Set the LEVELth level of the template ARGS to VAL. This macro does
2292 not work with single-level argument vectors. */
2293 #define SET_TMPL_ARGS_LEVEL(ARGS, LEVEL, VAL) \
2294 (TREE_VEC_ELT (ARGS, (LEVEL) - 1) = (VAL))
2296 /* Accesses the IDXth parameter in the LEVELth level of the ARGS. */
2297 #define TMPL_ARG(ARGS, LEVEL, IDX) \
2298 (TREE_VEC_ELT (TMPL_ARGS_LEVEL (ARGS, LEVEL), IDX))
2300 /* Given a single level of template arguments in NODE, return the
2301 number of arguments. */
2302 #define NUM_TMPL_ARGS(NODE) \
2303 (TREE_VEC_LENGTH (NODE))
2305 /* Returns the innermost level of template arguments in ARGS. */
2306 #define INNERMOST_TEMPLATE_ARGS(NODE) \
2307 (get_innermost_template_args ((NODE), 1))
2309 /* The number of levels of template parameters given by NODE. */
2310 #define TMPL_PARMS_DEPTH(NODE) \
2311 ((HOST_WIDE_INT) TREE_INT_CST_LOW (TREE_PURPOSE (NODE)))
2313 /* The TEMPLATE_DECL instantiated or specialized by NODE. This
2314 TEMPLATE_DECL will be the immediate parent, not the most general
2315 template. For example, in:
2317 template <class T> struct S { template <class U> void f(U); }
2319 the FUNCTION_DECL for S<int>::f<double> will have, as its
2320 DECL_TI_TEMPLATE, `template <class U> S<int>::f<U>'.
2322 As a special case, for a member friend template of a template
2323 class, this value will not be a TEMPLATE_DECL, but rather an
2324 IDENTIFIER_NODE or OVERLOAD indicating the name of the template and
2325 any explicit template arguments provided. For example, in:
2327 template <class T> struct S { friend void f<int>(int, double); }
2329 the DECL_TI_TEMPLATE will be an IDENTIFIER_NODE for `f' and the
2330 DECL_TI_ARGS will be {int}. */
2331 #define DECL_TI_TEMPLATE(NODE) TI_TEMPLATE (DECL_TEMPLATE_INFO (NODE))
2333 /* The template arguments used to obtain this decl from the most
2334 general form of DECL_TI_TEMPLATE. For the example given for
2335 DECL_TI_TEMPLATE, the DECL_TI_ARGS will be {int, double}. These
2336 are always the full set of arguments required to instantiate this
2337 declaration from the most general template specialized here. */
2338 #define DECL_TI_ARGS(NODE) TI_ARGS (DECL_TEMPLATE_INFO (NODE))
2340 /* The TEMPLATE_DECL associated with NODE, a class type. Even if NODE
2341 will be generated from a partial specialization, the TEMPLATE_DECL
2342 referred to here will be the original template. For example,
2345 template <typename T> struct S {};
2346 template <typename T> struct S<T*> {};
2348 the CLASSTPYE_TI_TEMPLATE for S<int*> will be S, not the S<T*>. */
2349 #define CLASSTYPE_TI_TEMPLATE(NODE) TI_TEMPLATE (CLASSTYPE_TEMPLATE_INFO (NODE))
2350 #define CLASSTYPE_TI_ARGS(NODE) TI_ARGS (CLASSTYPE_TEMPLATE_INFO (NODE))
2352 /* For a template instantiation TYPE, returns the TYPE corresponding
2353 to the primary template. Otherwise returns TYPE itself. */
2354 #define CLASSTYPE_PRIMARY_TEMPLATE_TYPE(TYPE) \
2355 ((CLASSTYPE_USE_TEMPLATE ((TYPE)) \
2356 && !CLASSTYPE_TEMPLATE_SPECIALIZATION ((TYPE))) \
2357 ? TREE_TYPE (DECL_TEMPLATE_RESULT (DECL_PRIMARY_TEMPLATE \
2358 (CLASSTYPE_TI_TEMPLATE ((TYPE))))) \
2361 /* Like CLASS_TI_TEMPLATE, but also works for ENUMERAL_TYPEs. */
2362 #define TYPE_TI_TEMPLATE(NODE) \
2363 (TI_TEMPLATE (TYPE_TEMPLATE_INFO (NODE)))
2365 /* Like DECL_TI_ARGS, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2366 #define TYPE_TI_ARGS(NODE) \
2367 (TI_ARGS (TYPE_TEMPLATE_INFO (NODE)))
2369 #define INNERMOST_TEMPLATE_PARMS(NODE) TREE_VALUE (NODE)
2371 /* Nonzero if NODE (a TEMPLATE_DECL) is a member template, in the
2372 sense of [temp.mem]. */
2373 #define DECL_MEMBER_TEMPLATE_P(NODE) \
2374 (DECL_LANG_FLAG_1 (TEMPLATE_DECL_CHECK (NODE)))
2376 /* Nonzero if the NODE corresponds to the template parameters for a
2377 member template, whose inline definition is being processed after
2378 the class definition is complete. */
2379 #define TEMPLATE_PARMS_FOR_INLINE(NODE) TREE_LANG_FLAG_1 (NODE)
2381 /* Determine if a parameter (i.e., a PARM_DECL) is a function
2383 #define FUNCTION_PARAMETER_PACK_P(NODE) \
2384 (DECL_LANG_FLAG_1 (PARM_DECL_CHECK (NODE)))
2386 /* Determines if NODE is an expansion of one or more parameter packs,
2387 e.g., a TYPE_PACK_EXPANSION or EXPR_PACK_EXPANSION. */
2388 #define PACK_EXPANSION_P(NODE) \
2389 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION \
2390 || TREE_CODE (NODE) == EXPR_PACK_EXPANSION)
2392 /* Extracts the type or expression pattern from a TYPE_PACK_EXPANSION or
2393 EXPR_PACK_EXPANSION. */
2394 #define PACK_EXPANSION_PATTERN(NODE) \
2395 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION? TREE_TYPE (NODE) \
2396 : TREE_OPERAND (NODE, 0))
2398 /* Sets the type or expression pattern for a TYPE_PACK_EXPANSION or
2399 EXPR_PACK_EXPANSION. */
2400 #define SET_PACK_EXPANSION_PATTERN(NODE,VALUE) \
2401 if (TREE_CODE (NODE) == TYPE_PACK_EXPANSION) \
2402 TREE_TYPE (NODE) = VALUE; \
2404 TREE_OPERAND (NODE, 0) = VALUE
2406 /* The list of parameter packs used in the PACK_EXPANSION_* node. The
2407 TREE_VALUE of each TREE_LIST contains the parameter packs. */
2408 #define PACK_EXPANSION_PARAMETER_PACKS(NODE) TREE_CHAIN (NODE)
2410 /* Determine if this is an argument pack. */
2411 #define ARGUMENT_PACK_P(NODE) \
2412 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK \
2413 || TREE_CODE (NODE) == NONTYPE_ARGUMENT_PACK)
2415 /* The arguments stored in an argument pack. Arguments are stored in a
2416 TREE_VEC, which may have length zero. */
2417 #define ARGUMENT_PACK_ARGS(NODE) \
2418 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK? TREE_TYPE (NODE) \
2419 : TREE_OPERAND (NODE, 0))
2421 /* Set the arguments stored in an argument pack. VALUE must be a
2423 #define SET_ARGUMENT_PACK_ARGS(NODE,VALUE) \
2424 if (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK) \
2425 TREE_TYPE (NODE) = VALUE; \
2427 TREE_OPERAND (NODE, 0) = VALUE
2429 /* Whether the argument pack is "incomplete", meaning that more
2430 arguments can still be deduced. Incomplete argument packs are only
2431 used when the user has provided an explicit template argument list
2432 for a variadic function template. Some of the explicit template
2433 arguments will be placed into the beginning of the argument pack,
2434 but additional arguments might still be deduced. */
2435 #define ARGUMENT_PACK_INCOMPLETE_P(NODE) \
2436 TREE_LANG_FLAG_0 (ARGUMENT_PACK_ARGS (NODE))
2438 /* When ARGUMENT_PACK_INCOMPLETE_P, stores the explicit template
2439 arguments used to fill this pack. */
2440 #define ARGUMENT_PACK_EXPLICIT_ARGS(NODE) \
2441 TREE_TYPE (ARGUMENT_PACK_ARGS (NODE))
2443 /* In an ARGUMENT_PACK_SELECT, the argument pack from which an
2444 argument will be selected. */
2445 #define ARGUMENT_PACK_SELECT_FROM_PACK(NODE) \
2446 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->argument_pack)
2448 /* In an ARGUMENT_PACK_SELECT, the index of the argument we want to
2450 #define ARGUMENT_PACK_SELECT_INDEX(NODE) \
2451 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->index)
2453 /* In an ARGUMENT_PACK_SELECT, the actual underlying argument that the
2454 ARGUMENT_PACK_SELECT represents. */
2455 #define ARGUMENT_PACK_SELECT_ARG(NODE) \
2456 TREE_VEC_ELT (ARGUMENT_PACK_ARGS (ARGUMENT_PACK_SELECT_FROM_PACK (NODE)), \
2457 ARGUMENT_PACK_SELECT_INDEX (NODE));
2459 /* In a FUNCTION_DECL, the saved language-specific per-function data. */
2460 #define DECL_SAVED_FUNCTION_DATA(NODE) \
2461 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (NODE)) \
2462 ->u.f.u.saved_language_function)
2464 /* Indicates an indirect_expr is for converting a reference. */
2465 #define REFERENCE_REF_P(NODE) \
2466 TREE_LANG_FLAG_0 (INDIRECT_REF_CHECK (NODE))
2468 #define NEW_EXPR_USE_GLOBAL(NODE) \
2469 TREE_LANG_FLAG_0 (NEW_EXPR_CHECK (NODE))
2470 #define DELETE_EXPR_USE_GLOBAL(NODE) \
2471 TREE_LANG_FLAG_0 (DELETE_EXPR_CHECK (NODE))
2472 #define DELETE_EXPR_USE_VEC(NODE) \
2473 TREE_LANG_FLAG_1 (DELETE_EXPR_CHECK (NODE))
2475 /* Indicates that this is a non-dependent COMPOUND_EXPR which will
2476 resolve to a function call. */
2477 #define COMPOUND_EXPR_OVERLOADED(NODE) \
2478 TREE_LANG_FLAG_0 (COMPOUND_EXPR_CHECK (NODE))
2480 /* In a CALL_EXPR appearing in a template, true if Koenig lookup
2481 should be performed at instantiation time. */
2482 #define KOENIG_LOOKUP_P(NODE) TREE_LANG_FLAG_0 (CALL_EXPR_CHECK (NODE))
2484 /* Indicates whether a string literal has been parenthesized. Such
2485 usages are disallowed in certain circumstances. */
2487 #define PAREN_STRING_LITERAL_P(NODE) \
2488 TREE_LANG_FLAG_0 (STRING_CST_CHECK (NODE))
2490 /* Nonzero if this AGGR_INIT_EXPR provides for initialization via a
2491 constructor call, rather than an ordinary function call. */
2492 #define AGGR_INIT_VIA_CTOR_P(NODE) \
2493 TREE_LANG_FLAG_0 (AGGR_INIT_EXPR_CHECK (NODE))
2495 /* AGGR_INIT_EXPR accessors. These are equivalent to the CALL_EXPR
2496 accessors, except for AGGR_INIT_EXPR_SLOT (which takes the place of
2497 CALL_EXPR_STATIC_CHAIN). */
2499 #define AGGR_INIT_EXPR_FN(NODE) TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 1)
2500 #define AGGR_INIT_EXPR_SLOT(NODE) \
2501 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 2)
2502 #define AGGR_INIT_EXPR_ARG(NODE, I) \
2503 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), (I) + 3)
2504 #define aggr_init_expr_nargs(NODE) (VL_EXP_OPERAND_LENGTH(NODE) - 3)
2506 /* AGGR_INIT_EXPR_ARGP returns a pointer to the argument vector for NODE.
2507 We can't use &AGGR_INIT_EXPR_ARG (NODE, 0) because that will complain if
2508 the argument count is zero when checking is enabled. Instead, do
2509 the pointer arithmetic to advance past the 3 fixed operands in a
2510 AGGR_INIT_EXPR. That produces a valid pointer to just past the end of
2511 the operand array, even if it's not valid to dereference it. */
2512 #define AGGR_INIT_EXPR_ARGP(NODE) \
2513 (&(TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 0)) + 3)
2515 /* Abstract iterators for AGGR_INIT_EXPRs. */
2517 /* Structure containing iterator state. */
2518 typedef struct aggr_init_expr_arg_iterator_d GTY (())
2520 tree t; /* the aggr_init_expr */
2521 int n; /* argument count */
2522 int i; /* next argument index */
2523 } aggr_init_expr_arg_iterator;
2525 /* Initialize the abstract argument list iterator object ITER with the
2526 arguments from AGGR_INIT_EXPR node EXP. */
2528 init_aggr_init_expr_arg_iterator (tree exp,
2529 aggr_init_expr_arg_iterator *iter)
2532 iter->n = aggr_init_expr_nargs (exp);
2536 /* Return the next argument from abstract argument list iterator object ITER,
2537 and advance its state. Return NULL_TREE if there are no more arguments. */
2539 next_aggr_init_expr_arg (aggr_init_expr_arg_iterator *iter)
2542 if (iter->i >= iter->n)
2544 result = AGGR_INIT_EXPR_ARG (iter->t, iter->i);
2549 /* Initialize the abstract argument list iterator object ITER, then advance
2550 past and return the first argument. Useful in for expressions, e.g.
2551 for (arg = first_aggr_init_expr_arg (exp, &iter); arg;
2552 arg = next_aggr_init_expr_arg (&iter)) */
2554 first_aggr_init_expr_arg (tree exp, aggr_init_expr_arg_iterator *iter)
2556 init_aggr_init_expr_arg_iterator (exp, iter);
2557 return next_aggr_init_expr_arg (iter);
2560 /* Test whether there are more arguments in abstract argument list iterator
2561 ITER, without changing its state. */
2563 more_aggr_init_expr_args_p (const aggr_init_expr_arg_iterator *iter)
2565 return (iter->i < iter->n);
2568 /* Iterate through each argument ARG of AGGR_INIT_EXPR CALL, using variable
2569 ITER (of type aggr_init_expr_arg_iterator) to hold the iteration state. */
2570 #define FOR_EACH_AGGR_INIT_EXPR_ARG(arg, iter, call) \
2571 for ((arg) = first_aggr_init_expr_arg ((call), &(iter)); (arg); \
2572 (arg) = next_aggr_init_expr_arg (&(iter)))
2574 /* The TYPE_MAIN_DECL for a class template type is a TYPE_DECL, not a
2575 TEMPLATE_DECL. This macro determines whether or not a given class
2576 type is really a template type, as opposed to an instantiation or
2577 specialization of one. */
2578 #define CLASSTYPE_IS_TEMPLATE(NODE) \
2579 (CLASSTYPE_TEMPLATE_INFO (NODE) \
2580 && !CLASSTYPE_USE_TEMPLATE (NODE) \
2581 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE)))
2583 /* The name used by the user to name the typename type. Typically,
2584 this is an IDENTIFIER_NODE, and the same as the DECL_NAME on the
2585 corresponding TYPE_DECL. However, this may also be a
2586 TEMPLATE_ID_EXPR if we had something like `typename X::Y<T>'. */
2587 #define TYPENAME_TYPE_FULLNAME(NODE) (TYPENAME_TYPE_CHECK (NODE))->type.values
2589 /* True if a TYPENAME_TYPE was declared as an "enum". */
2590 #define TYPENAME_IS_ENUM_P(NODE) \
2591 (TREE_LANG_FLAG_0 (TYPENAME_TYPE_CHECK (NODE)))
2593 /* True if a TYPENAME_TYPE was declared as a "class", "struct", or
2595 #define TYPENAME_IS_CLASS_P(NODE) \
2596 (TREE_LANG_FLAG_1 (TYPENAME_TYPE_CHECK (NODE)))
2598 /* True if a TYPENAME_TYPE is in the process of being resolved. */
2599 #define TYPENAME_IS_RESOLVING_P(NODE) \
2600 (TREE_LANG_FLAG_2 (TYPENAME_TYPE_CHECK (NODE)))
2602 /* Nonzero in INTEGER_CST means that this int is negative by dint of
2603 using a twos-complement negated operand. */
2604 #define TREE_NEGATED_INT(NODE) TREE_LANG_FLAG_0 (INTEGER_CST_CHECK (NODE))
2608 A class that declares or inherits a virtual function is called a
2609 polymorphic class. */
2610 #define TYPE_POLYMORPHIC_P(NODE) (TREE_LANG_FLAG_2 (NODE))
2612 /* Nonzero if this class has a virtual function table pointer. */
2613 #define TYPE_CONTAINS_VPTR_P(NODE) \
2614 (TYPE_POLYMORPHIC_P (NODE) || CLASSTYPE_VBASECLASSES (NODE))
2616 /* This flag is true of a local VAR_DECL if it was declared in a for
2617 statement, but we are no longer in the scope of the for. */
2618 #define DECL_DEAD_FOR_LOCAL(NODE) DECL_LANG_FLAG_7 (VAR_DECL_CHECK (NODE))
2620 /* This flag is set on a VAR_DECL that is a DECL_DEAD_FOR_LOCAL
2621 if we already emitted a warning about using it. */
2622 #define DECL_ERROR_REPORTED(NODE) DECL_LANG_FLAG_0 (VAR_DECL_CHECK (NODE))
2624 /* Nonzero if NODE is a FUNCTION_DECL (for a function with global
2625 scope) declared in a local scope. */
2626 #define DECL_LOCAL_FUNCTION_P(NODE) \
2627 DECL_LANG_FLAG_0 (FUNCTION_DECL_CHECK (NODE))
2629 /* Nonzero if NODE is a DECL which we know about but which has not
2630 been explicitly declared, such as a built-in function or a friend
2631 declared inside a class. In the latter case DECL_HIDDEN_FRIEND_P
2633 #define DECL_ANTICIPATED(NODE) \
2634 (DECL_LANG_SPECIFIC (DECL_COMMON_CHECK (NODE))->decl_flags.anticipated_p)
2636 /* Nonzero if NODE is a FUNCTION_DECL which was declared as a friend
2637 within a class but has not been declared in the surrounding scope.
2638 The function is invisible except via argument dependent lookup. */
2639 #define DECL_HIDDEN_FRIEND_P(NODE) \
2640 (DECL_LANG_SPECIFIC (DECL_COMMON_CHECK (NODE))->decl_flags.hidden_friend_p)
2642 /* Nonzero if DECL has been declared threadprivate by
2643 #pragma omp threadprivate. */
2644 #define CP_DECL_THREADPRIVATE_P(DECL) \
2645 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (DECL))->decl_flags.threadprivate_or_deleted_p)
2647 /* Nonzero if DECL was declared with '= delete'. */
2648 #define DECL_DELETED_FN(DECL) \
2649 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->decl_flags.threadprivate_or_deleted_p)
2651 /* Nonzero if DECL was declared with '= default'. */
2652 #define DECL_DEFAULTED_FN(DECL) \
2653 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->decl_flags.defaulted_p)
2655 /* Record whether a typedef for type `int' was actually `signed int'. */
2656 #define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP)
2658 /* Returns nonzero if DECL has external linkage, as specified by the
2659 language standard. (This predicate may hold even when the
2660 corresponding entity is not actually given external linkage in the
2661 object file; see decl_linkage for details.) */
2662 #define DECL_EXTERNAL_LINKAGE_P(DECL) \
2663 (decl_linkage (DECL) == lk_external)
2665 /* Keep these codes in ascending code order. */
2667 #define INTEGRAL_CODE_P(CODE) \
2668 ((CODE) == ENUMERAL_TYPE \
2669 || (CODE) == BOOLEAN_TYPE \
2670 || (CODE) == INTEGER_TYPE)
2672 /* [basic.fundamental]
2674 Types bool, char, wchar_t, and the signed and unsigned integer types
2675 are collectively called integral types.
2677 Note that INTEGRAL_TYPE_P, as defined in tree.h, allows enumeration
2678 types as well, which is incorrect in C++. Keep these checks in
2679 ascending code order. */
2680 #define CP_INTEGRAL_TYPE_P(TYPE) \
2681 (TREE_CODE (TYPE) == BOOLEAN_TYPE \
2682 || TREE_CODE (TYPE) == INTEGER_TYPE)
2684 /* Returns true if TYPE is an integral or enumeration name. Keep
2685 these checks in ascending code order. */
2686 #define INTEGRAL_OR_ENUMERATION_TYPE_P(TYPE) \
2687 (TREE_CODE (TYPE) == ENUMERAL_TYPE || CP_INTEGRAL_TYPE_P (TYPE))
2689 /* Returns true if TYPE is an integral or unscoped enumeration type. */
2690 #define INTEGRAL_OR_UNSCOPED_ENUMERATION_TYPE_P(TYPE) \
2691 (UNSCOPED_ENUM_P (TYPE) || CP_INTEGRAL_TYPE_P (TYPE))
2693 /* [basic.fundamental]
2695 Integral and floating types are collectively called arithmetic
2698 As a GNU extension, we also accept complex types.
2700 Keep these checks in ascending code order. */
2701 #define ARITHMETIC_TYPE_P(TYPE) \
2702 (CP_INTEGRAL_TYPE_P (TYPE) \
2703 || TREE_CODE (TYPE) == REAL_TYPE \
2704 || TREE_CODE (TYPE) == COMPLEX_TYPE)
2708 Arithmetic types, enumeration types, pointer types, and
2709 pointer-to-member types, are collectively called scalar types.
2711 Keep these checks in ascending code order. */
2712 #define SCALAR_TYPE_P(TYPE) \
2713 (TYPE_PTRMEM_P (TYPE) \
2714 || TREE_CODE (TYPE) == ENUMERAL_TYPE \
2715 || ARITHMETIC_TYPE_P (TYPE) \
2716 || TYPE_PTR_P (TYPE) \
2717 || TYPE_PTRMEMFUNC_P (TYPE))
2719 /* Determines whether this type is a C++0x scoped enumeration
2720 type. Scoped enumerations types are introduced via "enum class" or
2721 "enum struct", e.g.,
2727 Scoped enumeration types are different from normal (unscoped)
2728 enumeration types in several ways:
2730 - The enumerators of a scoped enumeration type are only available
2731 within the scope of the enumeration type and not in the
2732 enclosing scope. For example, the Red color can be referred to
2733 with "Color::Red" but not "Red".
2735 - Scoped enumerators and enumerations do not implicitly convert
2736 to integers or 'bool'.
2738 - The underlying type of the enum is well-defined. */
2739 #define SCOPED_ENUM_P(TYPE) \
2740 (TREE_CODE (TYPE) == ENUMERAL_TYPE && TYPE_LANG_FLAG_5 (TYPE))
2742 /* Determine whether this is an unscoped enumeration type. */
2743 #define UNSCOPED_ENUM_P(TYPE) \
2744 (TREE_CODE (TYPE) == ENUMERAL_TYPE && !TYPE_LANG_FLAG_5 (TYPE))
2746 /* Set the flag indicating whether an ENUMERAL_TYPE is a C++0x scoped
2747 enumeration type (1) or a normal (unscoped) enumeration type
2749 #define SET_SCOPED_ENUM_P(TYPE, VAL) \
2750 (TYPE_LANG_FLAG_5 (ENUMERAL_TYPE_CHECK (TYPE)) = (VAL))
2752 /* Returns the underlying type of the given enumeration type. The
2753 underlying type is determined in different ways, depending on the
2754 properties of the enum:
2756 - In C++0x, the underlying type can be explicitly specified, e.g.,
2758 enum E1 : char { ... } // underlying type is char
2760 - In a C++0x scoped enumeration, the underlying type is int
2761 unless otherwises specified:
2763 enum class E2 { ... } // underlying type is int
2765 - Otherwise, the underlying type is determined based on the
2766 values of the enumerators. In this case, the
2767 ENUM_UNDERLYING_TYPE will not be set until after the definition
2768 of the enumeration is completed by finish_enum. */
2769 #define ENUM_UNDERLYING_TYPE(TYPE) \
2770 TREE_TYPE (ENUMERAL_TYPE_CHECK (TYPE))
2774 An aggregate is an array or a class with no user-declared
2775 constructors, no private or protected non-static data members, no
2776 base classes, and no virtual functions.
2778 As an extension, we also treat vectors as aggregates. Keep these
2779 checks in ascending code order. */
2780 #define CP_AGGREGATE_TYPE_P(TYPE) \
2781 (TREE_CODE (TYPE) == VECTOR_TYPE \
2782 ||TREE_CODE (TYPE) == ARRAY_TYPE \
2783 || (CLASS_TYPE_P (TYPE) && !CLASSTYPE_NON_AGGREGATE (TYPE)))
2785 /* Nonzero for a class type means that the class type has a
2786 user-declared constructor. */
2787 #define TYPE_HAS_USER_CONSTRUCTOR(NODE) (TYPE_LANG_FLAG_1 (NODE))
2789 /* When appearing in an INDIRECT_REF, it means that the tree structure
2790 underneath is actually a call to a constructor. This is needed
2791 when the constructor must initialize local storage (which can
2792 be automatically destroyed), rather than allowing it to allocate
2793 space from the heap.
2795 When appearing in a SAVE_EXPR, it means that underneath
2796 is a call to a constructor.
2798 When appearing in a CONSTRUCTOR, the expression is a
2801 When appearing in a FIELD_DECL, it means that this field
2802 has been duly initialized in its constructor. */
2803 #define TREE_HAS_CONSTRUCTOR(NODE) (TREE_LANG_FLAG_4 (NODE))
2805 /* True if NODE is a brace-enclosed initializer. */
2806 #define BRACE_ENCLOSED_INITIALIZER_P(NODE) \
2807 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_TYPE (NODE) == init_list_type_node)
2809 /* True if NODE is a compound-literal, i.e., a brace-enclosed
2810 initializer cast to a particular type. */
2811 #define COMPOUND_LITERAL_P(NODE) \
2812 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_HAS_CONSTRUCTOR (NODE))
2814 #define EMPTY_CONSTRUCTOR_P(NODE) (TREE_CODE (NODE) == CONSTRUCTOR \
2815 && VEC_empty (constructor_elt, \
2816 CONSTRUCTOR_ELTS (NODE)) \
2817 && !TREE_HAS_CONSTRUCTOR (NODE))
2819 /* True if NODE is a init-list used as a direct-initializer, i.e.
2820 B b{1,2}, not B b({1,2}) or B b = {1,2}. */
2821 #define CONSTRUCTOR_IS_DIRECT_INIT(NODE) (TREE_LANG_FLAG_0 (CONSTRUCTOR_CHECK (NODE)))
2823 /* Nonzero means that an object of this type can not be initialized using
2824 an initializer list. */
2825 #define CLASSTYPE_NON_AGGREGATE(NODE) \
2826 (LANG_TYPE_CLASS_CHECK (NODE)->non_aggregate)
2827 #define TYPE_NON_AGGREGATE_CLASS(NODE) \
2828 (CLASS_TYPE_P (NODE) && CLASSTYPE_NON_AGGREGATE (NODE))
2830 /* Nonzero if there is a user-defined X::op=(x&) for this class. */
2831 #define TYPE_HAS_COMPLEX_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_assign_ref)
2833 /* Nonzero if there is a user-defined X::X(x&) for this class. */
2834 #define TYPE_HAS_COMPLEX_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_init_ref)
2836 /* Nonzero if there is a user-defined default constructor for this class. */
2837 #define TYPE_HAS_COMPLEX_DFLT(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_dflt)
2839 /* Nonzero if TYPE has a trivial destructor. From [class.dtor]:
2841 A destructor is trivial if it is an implicitly declared
2844 - all of the direct base classes of its class have trivial
2847 - for all of the non-static data members of its class that are
2848 of class type (or array thereof), each such class has a
2849 trivial destructor. */
2850 #define TYPE_HAS_TRIVIAL_DESTRUCTOR(NODE) \
2851 (!TYPE_HAS_NONTRIVIAL_DESTRUCTOR (NODE))
2853 /* Nonzero for _TYPE node means that this type does not have a trivial
2854 destructor. Therefore, destroying an object of this type will
2855 involve a call to a destructor. This can apply to objects of
2856 ARRAY_TYPE is the type of the elements needs a destructor. */
2857 #define TYPE_HAS_NONTRIVIAL_DESTRUCTOR(NODE) \
2858 (TYPE_LANG_FLAG_4 (NODE))
2860 /* Nonzero for class type means that the default constructor is trivial. */
2861 #define TYPE_HAS_TRIVIAL_DFLT(NODE) \
2862 (TYPE_HAS_DEFAULT_CONSTRUCTOR (NODE) && ! TYPE_HAS_COMPLEX_DFLT (NODE))
2864 /* Nonzero for class type means that copy initialization of this type can use
2866 #define TYPE_HAS_TRIVIAL_INIT_REF(NODE) \
2867 (TYPE_HAS_INIT_REF (NODE) && ! TYPE_HAS_COMPLEX_INIT_REF (NODE))
2869 /* Nonzero for class type means that assignment of this type can use
2871 #define TYPE_HAS_TRIVIAL_ASSIGN_REF(NODE) \
2872 (TYPE_HAS_ASSIGN_REF (NODE) && ! TYPE_HAS_COMPLEX_ASSIGN_REF (NODE))
2874 /* Returns true if NODE is a pointer-to-data-member. */
2875 #define TYPE_PTRMEM_P(NODE) \
2876 (TREE_CODE (NODE) == OFFSET_TYPE)
2877 /* Returns true if NODE is a pointer. */
2878 #define TYPE_PTR_P(NODE) \
2879 (TREE_CODE (NODE) == POINTER_TYPE)
2881 /* Returns true if NODE is an object type:
2885 An object type is a (possibly cv-qualified) type that is not a
2886 function type, not a reference type, and not a void type.
2888 Keep these checks in ascending order, for speed. */
2889 #define TYPE_OBJ_P(NODE) \
2890 (TREE_CODE (NODE) != REFERENCE_TYPE \
2891 && TREE_CODE (NODE) != VOID_TYPE \
2892 && TREE_CODE (NODE) != FUNCTION_TYPE \
2893 && TREE_CODE (NODE) != METHOD_TYPE)
2895 /* Returns true if NODE is a pointer to an object. Keep these checks
2896 in ascending tree code order. */
2897 #define TYPE_PTROB_P(NODE) \
2898 (TYPE_PTR_P (NODE) && TYPE_OBJ_P (TREE_TYPE (NODE)))
2900 /* Returns true if NODE is a reference to an object. Keep these checks
2901 in ascending tree code order. */
2902 #define TYPE_REF_OBJ_P(NODE) \
2903 (TREE_CODE (NODE) == REFERENCE_TYPE && TYPE_OBJ_P (TREE_TYPE (NODE)))
2905 /* True if reference type NODE is an rvalue reference */
2906 #define TYPE_REF_IS_RVALUE(NODE) \
2907 TREE_LANG_FLAG_0 (REFERENCE_TYPE_CHECK (NODE))
2909 /* Returns true if NODE is a pointer to an object, or a pointer to
2910 void. Keep these checks in ascending tree code order. */
2911 #define TYPE_PTROBV_P(NODE) \
2912 (TYPE_PTR_P (NODE) \
2913 && !(TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE \
2914 || TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE))
2916 /* Returns true if NODE is a pointer to function. */
2917 #define TYPE_PTRFN_P(NODE) \
2918 (TREE_CODE (NODE) == POINTER_TYPE \
2919 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
2921 /* Returns true if NODE is a reference to function. */
2922 #define TYPE_REFFN_P(NODE) \
2923 (TREE_CODE (NODE) == REFERENCE_TYPE \
2924 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
2926 /* Nonzero for _TYPE node means that this type is a pointer to member
2928 #define TYPE_PTRMEMFUNC_P(NODE) \
2929 (TREE_CODE (NODE) == RECORD_TYPE \
2930 && TYPE_LANG_SPECIFIC (NODE) \
2931 && TYPE_PTRMEMFUNC_FLAG (NODE))
2933 #define TYPE_PTRMEMFUNC_FLAG(NODE) \
2934 (LANG_TYPE_CLASS_CHECK (NODE)->ptrmemfunc_flag)
2936 /* Returns true if NODE is a pointer-to-member. */
2937 #define TYPE_PTR_TO_MEMBER_P(NODE) \
2938 (TYPE_PTRMEM_P (NODE) || TYPE_PTRMEMFUNC_P (NODE))
2940 /* Indicates when overload resolution may resolve to a pointer to
2941 member function. [expr.unary.op]/3 */
2942 #define PTRMEM_OK_P(NODE) \
2943 TREE_LANG_FLAG_0 (TREE_CHECK2 ((NODE), ADDR_EXPR, OFFSET_REF))
2945 /* Get the POINTER_TYPE to the METHOD_TYPE associated with this
2946 pointer to member function. TYPE_PTRMEMFUNC_P _must_ be true,
2947 before using this macro. */
2948 #define TYPE_PTRMEMFUNC_FN_TYPE(NODE) \
2949 (TREE_TYPE (TYPE_FIELDS (NODE)))
2951 /* Returns `A' for a type like `int (A::*)(double)' */
2952 #define TYPE_PTRMEMFUNC_OBJECT_TYPE(NODE) \
2953 TYPE_METHOD_BASETYPE (TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
2955 /* These are use to manipulate the canonical RECORD_TYPE from the
2956 hashed POINTER_TYPE, and can only be used on the POINTER_TYPE. */
2957 #define TYPE_GET_PTRMEMFUNC_TYPE(NODE) \
2958 (TYPE_LANG_SPECIFIC (NODE) ? LANG_TYPE_PTRMEM_CHECK (NODE)->record : NULL)
2959 #define TYPE_SET_PTRMEMFUNC_TYPE(NODE, VALUE) \
2961 if (TYPE_LANG_SPECIFIC (NODE) == NULL) \
2963 TYPE_LANG_SPECIFIC (NODE) = GGC_CNEWVAR \
2964 (struct lang_type, sizeof (struct lang_type_ptrmem)); \
2965 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.h.is_lang_type_class = 0; \
2967 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.record = (VALUE); \
2970 /* For a pointer-to-member type of the form `T X::*', this is `X'.
2971 For a type like `void (X::*)() const', this type is `X', not `const
2972 X'. To get at the `const X' you have to look at the
2973 TYPE_PTRMEM_POINTED_TO_TYPE; there, the first parameter will have
2975 #define TYPE_PTRMEM_CLASS_TYPE(NODE) \
2976 (TYPE_PTRMEM_P (NODE) \
2977 ? TYPE_OFFSET_BASETYPE (NODE) \
2978 : TYPE_PTRMEMFUNC_OBJECT_TYPE (NODE))
2980 /* For a pointer-to-member type of the form `T X::*', this is `T'. */
2981 #define TYPE_PTRMEM_POINTED_TO_TYPE(NODE) \
2982 (TYPE_PTRMEM_P (NODE) \
2983 ? TREE_TYPE (NODE) \
2984 : TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
2986 /* For a pointer-to-member constant `X::Y' this is the RECORD_TYPE for
2988 #define PTRMEM_CST_CLASS(NODE) \
2989 TYPE_PTRMEM_CLASS_TYPE (TREE_TYPE (PTRMEM_CST_CHECK (NODE)))
2991 /* For a pointer-to-member constant `X::Y' this is the _DECL for
2993 #define PTRMEM_CST_MEMBER(NODE) (((ptrmem_cst_t)PTRMEM_CST_CHECK (NODE))->member)
2995 /* The expression in question for a TYPEOF_TYPE. */
2996 #define TYPEOF_TYPE_EXPR(NODE) (TYPEOF_TYPE_CHECK (NODE))->type.values
2998 /* The expression in question for a DECLTYPE_TYPE. */
2999 #define DECLTYPE_TYPE_EXPR(NODE) (DECLTYPE_TYPE_CHECK (NODE))->type.values
3001 /* Whether the DECLTYPE_TYPE_EXPR of NODE was originally parsed as an
3002 id-expression or a member-access expression. When false, it was
3003 parsed as a full expression. */
3004 #define DECLTYPE_TYPE_ID_EXPR_OR_MEMBER_ACCESS_P(NODE) \
3005 (DECLTYPE_TYPE_CHECK (NODE))->type.string_flag
3007 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `extern' was
3008 specified in its declaration. This can also be set for an
3009 erroneously declared PARM_DECL. */
3010 #define DECL_THIS_EXTERN(NODE) \
3011 DECL_LANG_FLAG_2 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
3013 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `static' was
3014 specified in its declaration. This can also be set for an
3015 erroneously declared PARM_DECL. */
3016 #define DECL_THIS_STATIC(NODE) \
3017 DECL_LANG_FLAG_6 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
3019 /* Nonzero for FIELD_DECL node means that this field is a base class
3020 of the parent object, as opposed to a member field. */
3021 #define DECL_FIELD_IS_BASE(NODE) \
3022 DECL_LANG_FLAG_6 (FIELD_DECL_CHECK (NODE))
3024 /* Nonzero if TYPE is an anonymous union or struct type. We have to use a
3025 flag for this because "A union for which objects or pointers are
3026 declared is not an anonymous union" [class.union]. */
3027 #define ANON_AGGR_TYPE_P(NODE) \
3028 (CLASS_TYPE_P (NODE) && LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr)
3029 #define SET_ANON_AGGR_TYPE_P(NODE) \
3030 (LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr = 1)
3032 /* Nonzero if TYPE is an anonymous union type. */
3033 #define ANON_UNION_TYPE_P(NODE) \
3034 (TREE_CODE (NODE) == UNION_TYPE && ANON_AGGR_TYPE_P (NODE))
3036 #define UNKNOWN_TYPE LANG_TYPE
3038 /* Define fields and accessors for nodes representing declared names. */
3040 #define TYPE_WAS_ANONYMOUS(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->was_anonymous)
3042 /* C++: all of these are overloaded! These apply only to TYPE_DECLs. */
3044 /* The format of each node in the DECL_FRIENDLIST is as follows:
3046 The TREE_PURPOSE will be the name of a function, i.e., an
3047 IDENTIFIER_NODE. The TREE_VALUE will be itself a TREE_LIST, whose
3048 TREE_VALUEs are friends with the given name. */
3049 #define DECL_FRIENDLIST(NODE) (DECL_INITIAL (NODE))
3050 #define FRIEND_NAME(LIST) (TREE_PURPOSE (LIST))
3051 #define FRIEND_DECLS(LIST) (TREE_VALUE (LIST))
3053 /* The DECL_ACCESS, if non-NULL, is a TREE_LIST. The TREE_PURPOSE of
3054 each node is a type; the TREE_VALUE is the access granted for this
3055 DECL in that type. The DECL_ACCESS is set by access declarations.
3056 For example, if a member that would normally be public in a
3057 derived class is made protected, then the derived class and the
3058 protected_access_node will appear in the DECL_ACCESS for the node. */
3059 #define DECL_ACCESS(NODE) (LANG_DECL_U2_CHECK (NODE, 0)->access)
3061 /* Nonzero if the FUNCTION_DECL is a global constructor. */
3062 #define DECL_GLOBAL_CTOR_P(NODE) \
3063 (DECL_LANG_SPECIFIC (NODE)->decl_flags.global_ctor_p)
3065 /* Nonzero if the FUNCTION_DECL is a global destructor. */
3066 #define DECL_GLOBAL_DTOR_P(NODE) \
3067 (DECL_LANG_SPECIFIC (NODE)->decl_flags.global_dtor_p)
3069 /* Accessor macros for C++ template decl nodes. */
3071 /* The DECL_TEMPLATE_PARMS are a list. The TREE_PURPOSE of each node
3072 is a INT_CST whose TREE_INT_CST_LOW indicates the level of the
3073 template parameters, with 1 being the outermost set of template
3074 parameters. The TREE_VALUE is a vector, whose elements are the
3075 template parameters at each level. Each element in the vector is a
3076 TREE_LIST, whose TREE_VALUE is a PARM_DECL (if the parameter is a
3077 non-type parameter), or a TYPE_DECL (if the parameter is a type
3078 parameter). The TREE_PURPOSE is the default value, if any. The
3079 TEMPLATE_PARM_INDEX for the parameter is available as the
3080 DECL_INITIAL (for a PARM_DECL) or as the TREE_TYPE (for a
3082 #define DECL_TEMPLATE_PARMS(NODE) DECL_NON_COMMON_CHECK (NODE)->decl_non_common.arguments
3083 #define DECL_INNERMOST_TEMPLATE_PARMS(NODE) \
3084 INNERMOST_TEMPLATE_PARMS (DECL_TEMPLATE_PARMS (NODE))
3085 #define DECL_NTPARMS(NODE) \
3086 TREE_VEC_LENGTH (DECL_INNERMOST_TEMPLATE_PARMS (NODE))
3087 /* For function, method, class-data templates. */
3088 #define DECL_TEMPLATE_RESULT(NODE) DECL_RESULT_FLD (NODE)
3089 /* For a static member variable template, the
3090 DECL_TEMPLATE_INSTANTIATIONS list contains the explicitly and
3091 implicitly generated instantiations of the variable. There are no
3092 partial instantiations of static member variables, so all of these
3093 will be full instantiations.
3095 For a class template the DECL_TEMPLATE_INSTANTIATIONS lists holds
3096 all instantiations and specializations of the class type, including
3097 partial instantiations and partial specializations.
3099 In both cases, the TREE_PURPOSE of each node contains the arguments
3100 used; the TREE_VALUE contains the generated variable. The template
3101 arguments are always complete. For example, given:
3103 template <class T> struct S1 {
3104 template <class U> struct S2 {};
3105 template <class U> struct S2<U*> {};
3108 the record for the partial specialization will contain, as its
3109 argument list, { {T}, {U*} }, and will be on the
3110 DECL_TEMPLATE_INSTANTIATIONS list for `template <class T> template
3111 <class U> struct S1<T>::S2'.
3113 This list is not used for function templates. */
3114 #define DECL_TEMPLATE_INSTANTIATIONS(NODE) DECL_VINDEX (NODE)
3115 /* For a function template, the DECL_TEMPLATE_SPECIALIZATIONS lists
3116 contains all instantiations and specializations of the function,
3117 including partial instantiations. For a partial instantiation
3118 which is a specialization, this list holds only full
3119 specializations of the template that are instantiations of the
3120 partial instantiation. For example, given:
3122 template <class T> struct S {
3123 template <class U> void f(U);
3124 template <> void f(T);
3127 the `S<int>::f<int>(int)' function will appear on the
3128 DECL_TEMPLATE_SPECIALIZATIONS list for both `template <class T>
3129 template <class U> void S<T>::f(U)' and `template <class T> void
3130 S<int>::f(T)'. In the latter case, however, it will have only the
3131 innermost set of arguments (T, in this case). The DECL_TI_TEMPLATE
3132 for the function declaration will point at the specialization, not
3133 the fully general template.
3135 For a class template, this list contains the partial
3136 specializations of this template. (Full specializations are not
3137 recorded on this list.) The TREE_PURPOSE holds the arguments used
3138 in the partial specialization (e.g., for `template <class T> struct
3139 S<T*, int>' this will be `T*'.) The arguments will also include
3140 any outer template arguments. The TREE_VALUE holds the innermost
3141 template parameters for the specialization (e.g., `T' in the
3142 example above.) The TREE_TYPE is the _TYPE node for the partial
3145 This list is not used for static variable templates. */
3146 #define DECL_TEMPLATE_SPECIALIZATIONS(NODE) DECL_SIZE (NODE)
3148 /* Nonzero for a DECL which is actually a template parameter. Keep
3149 these checks in ascending tree code order. */
3150 #define DECL_TEMPLATE_PARM_P(NODE) \
3151 (DECL_LANG_FLAG_0 (NODE) \
3152 && (TREE_CODE (NODE) == CONST_DECL \
3153 || TREE_CODE (NODE) == PARM_DECL \
3154 || TREE_CODE (NODE) == TYPE_DECL \
3155 || TREE_CODE (NODE) == TEMPLATE_DECL))
3157 /* Mark NODE as a template parameter. */
3158 #define SET_DECL_TEMPLATE_PARM_P(NODE) \
3159 (DECL_LANG_FLAG_0 (NODE) = 1)
3161 /* Nonzero if NODE is a template template parameter. */
3162 #define DECL_TEMPLATE_TEMPLATE_PARM_P(NODE) \
3163 (TREE_CODE (NODE) == TEMPLATE_DECL && DECL_TEMPLATE_PARM_P (NODE))
3165 /* Nonzero if NODE is a TEMPLATE_DECL representing an
3166 UNBOUND_CLASS_TEMPLATE tree node. */
3167 #define DECL_UNBOUND_CLASS_TEMPLATE_P(NODE) \
3168 (TREE_CODE (NODE) == TEMPLATE_DECL && !DECL_TEMPLATE_RESULT (NODE))
3170 #define DECL_FUNCTION_TEMPLATE_P(NODE) \
3171 (TREE_CODE (NODE) == TEMPLATE_DECL \
3172 && !DECL_UNBOUND_CLASS_TEMPLATE_P (NODE) \
3173 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == FUNCTION_DECL)
3175 /* Nonzero for a DECL that represents a template class. */
3176 #define DECL_CLASS_TEMPLATE_P(NODE) \
3177 (TREE_CODE (NODE) == TEMPLATE_DECL \
3178 && !DECL_UNBOUND_CLASS_TEMPLATE_P (NODE) \
3179 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == TYPE_DECL \
3180 && !DECL_TEMPLATE_TEMPLATE_PARM_P (NODE))
3182 /* The chained list of some types that are referenced in templates.
3183 These types are those which need to be access checked at
3184 template instantiation time. For the time being, only typedef-ed types defined
3185 as class members are put here at parsing time.
3186 Other types for which access check could be required at template instantiation
3187 time could be added later. */
3188 #define MEMBER_TYPES_NEEDING_ACCESS_CHECK(NODE) DECL_ACCESS (NODE)
3190 /* Nonzero if NODE which declares a type. */
3191 #define DECL_DECLARES_TYPE_P(NODE) \
3192 (TREE_CODE (NODE) == TYPE_DECL || DECL_CLASS_TEMPLATE_P (NODE))
3194 /* Nonzero if NODE is the typedef implicitly generated for a type when
3195 the type is declared. In C++, `struct S {};' is roughly
3196 equivalent to `struct S {}; typedef struct S S;' in C.
3197 DECL_IMPLICIT_TYPEDEF_P will hold for the typedef indicated in this
3198 example. In C++, there is a second implicit typedef for each
3199 class, in the scope of `S' itself, so that you can say `S::S'.
3200 DECL_SELF_REFERENCE_P will hold for that second typedef. */
3201 #define DECL_IMPLICIT_TYPEDEF_P(NODE) \
3202 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_2 (NODE))
3203 #define SET_DECL_IMPLICIT_TYPEDEF_P(NODE) \
3204 (DECL_LANG_FLAG_2 (NODE) = 1)
3205 #define DECL_SELF_REFERENCE_P(NODE) \
3206 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_4 (NODE))
3207 #define SET_DECL_SELF_REFERENCE_P(NODE) \
3208 (DECL_LANG_FLAG_4 (NODE) = 1)
3210 /* A `primary' template is one that has its own template header. A
3211 member function of a class template is a template, but not primary.
3212 A member template is primary. Friend templates are primary, too. */
3214 /* Returns the primary template corresponding to these parameters. */
3215 #define DECL_PRIMARY_TEMPLATE(NODE) \
3216 (TREE_TYPE (DECL_INNERMOST_TEMPLATE_PARMS (NODE)))
3218 /* Returns nonzero if NODE is a primary template. */
3219 #define PRIMARY_TEMPLATE_P(NODE) (DECL_PRIMARY_TEMPLATE (NODE) == (NODE))
3221 /* Nonzero iff NODE is a specialization of a template. The value
3222 indicates the type of specializations:
3224 1=implicit instantiation
3226 2=partial or explicit specialization, e.g.:
3228 template <> int min<int> (int, int),
3230 3=explicit instantiation, e.g.:
3232 template int min<int> (int, int);
3234 Note that NODE will be marked as a specialization even if the
3235 template it is instantiating is not a primary template. For
3238 template <typename T> struct O {
3243 both O<int>::f and O<int>::I will be marked as instantiations.
3245 If DECL_USE_TEMPLATE is nonzero, then DECL_TEMPLATE_INFO will also
3247 #define DECL_USE_TEMPLATE(NODE) (DECL_LANG_SPECIFIC (NODE)->decl_flags.use_template)
3249 /* Like DECL_USE_TEMPLATE, but for class types. */
3250 #define CLASSTYPE_USE_TEMPLATE(NODE) \
3251 (LANG_TYPE_CLASS_CHECK (NODE)->use_template)
3253 /* True if NODE is a specialization of a primary template. */
3254 #define CLASSTYPE_SPECIALIZATION_OF_PRIMARY_TEMPLATE_P(NODE) \
3255 (CLASS_TYPE_P (NODE) \
3256 && CLASSTYPE_USE_TEMPLATE (NODE) \
3257 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (arg)))
3259 #define DECL_TEMPLATE_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) & 1)
3260 #define CLASSTYPE_TEMPLATE_INSTANTIATION(NODE) \
3261 (CLASSTYPE_USE_TEMPLATE (NODE) & 1)
3263 #define DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) == 2)
3264 #define SET_DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) = 2)
3266 /* Returns true for an explicit or partial specialization of a class
3268 #define CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
3269 (CLASSTYPE_USE_TEMPLATE (NODE) == 2)
3270 #define SET_CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
3271 (CLASSTYPE_USE_TEMPLATE (NODE) = 2)
3273 #define DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 1)
3274 #define SET_DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 1)
3275 #define CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
3276 (CLASSTYPE_USE_TEMPLATE (NODE) == 1)
3277 #define SET_CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
3278 (CLASSTYPE_USE_TEMPLATE (NODE) = 1)
3280 #define DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 3)
3281 #define SET_DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 3)
3282 #define CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
3283 (CLASSTYPE_USE_TEMPLATE (NODE) == 3)
3284 #define SET_CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
3285 (CLASSTYPE_USE_TEMPLATE (NODE) = 3)
3287 /* Nonzero if DECL is a friend function which is an instantiation
3288 from the point of view of the compiler, but not from the point of
3289 view of the language. For example given:
3290 template <class T> struct S { friend void f(T) {}; };
3291 the declaration of `void f(int)' generated when S<int> is
3292 instantiated will not be a DECL_TEMPLATE_INSTANTIATION, but will be
3293 a DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION. */
3294 #define DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION(DECL) \
3295 (DECL_TEMPLATE_INFO (DECL) && !DECL_USE_TEMPLATE (DECL))
3297 /* Nonzero iff we are currently processing a declaration for an
3298 entity with its own template parameter list, and which is not a
3299 full specialization. */
3300 #define PROCESSING_REAL_TEMPLATE_DECL_P() \
3301 (processing_template_decl > template_class_depth (current_scope ()))
3303 /* Nonzero if this VAR_DECL or FUNCTION_DECL has already been
3304 instantiated, i.e. its definition has been generated from the
3305 pattern given in the template. */
3306 #define DECL_TEMPLATE_INSTANTIATED(NODE) \
3307 DECL_LANG_FLAG_1 (VAR_OR_FUNCTION_DECL_CHECK (NODE))
3309 /* We know what we're doing with this decl now. */
3310 #define DECL_INTERFACE_KNOWN(NODE) DECL_LANG_FLAG_5 (NODE)
3312 /* DECL_EXTERNAL must be set on a decl until the decl is actually emitted,
3313 so that assemble_external will work properly. So we have this flag to
3314 tell us whether the decl is really not external.
3316 This flag does not indicate whether or not the decl is defined in the
3317 current translation unit; it indicates whether or not we should emit the
3318 decl at the end of compilation if it is defined and needed. */
3319 #define DECL_NOT_REALLY_EXTERN(NODE) \
3320 (DECL_LANG_SPECIFIC (NODE)->decl_flags.not_really_extern)
3322 #define DECL_REALLY_EXTERN(NODE) \
3323 (DECL_EXTERNAL (NODE) && ! DECL_NOT_REALLY_EXTERN (NODE))
3325 /* A thunk is a stub function.
3327 A thunk is an alternate entry point for an ordinary FUNCTION_DECL.
3328 The address of the ordinary FUNCTION_DECL is given by the
3329 DECL_INITIAL, which is always an ADDR_EXPR whose operand is a
3330 FUNCTION_DECL. The job of the thunk is to either adjust the this
3331 pointer before transferring control to the FUNCTION_DECL, or call
3332 FUNCTION_DECL and then adjust the result value. Note, the result
3333 pointer adjusting thunk must perform a call to the thunked
3334 function, (or be implemented via passing some invisible parameter
3335 to the thunked function, which is modified to perform the
3336 adjustment just before returning).
3338 A thunk may perform either, or both, of the following operations:
3340 o Adjust the this or result pointer by a constant offset.
3341 o Adjust the this or result pointer by looking up a vcall or vbase offset
3344 A this pointer adjusting thunk converts from a base to a derived
3345 class, and hence adds the offsets. A result pointer adjusting thunk
3346 converts from a derived class to a base, and hence subtracts the
3347 offsets. If both operations are performed, then the constant
3348 adjustment is performed first for this pointer adjustment and last
3349 for the result pointer adjustment.
3351 The constant adjustment is given by THUNK_FIXED_OFFSET. If the
3352 vcall or vbase offset is required, THUNK_VIRTUAL_OFFSET is
3353 used. For this pointer adjusting thunks, it is the vcall offset
3354 into the vtable. For result pointer adjusting thunks it is the
3355 binfo of the virtual base to convert to. Use that binfo's vbase
3358 It is possible to have equivalent covariant thunks. These are
3359 distinct virtual covariant thunks whose vbase offsets happen to
3360 have the same value. THUNK_ALIAS is used to pick one as the
3361 canonical thunk, which will get all the this pointer adjusting
3362 thunks attached to it. */
3364 /* An integer indicating how many bytes should be subtracted from the
3365 this or result pointer when this function is called. */
3366 #define THUNK_FIXED_OFFSET(DECL) \
3367 (DECL_LANG_SPECIFIC (THUNK_FUNCTION_CHECK (DECL))->u.f.u5.fixed_offset)
3369 /* A tree indicating how to perform the virtual adjustment. For a this
3370 adjusting thunk it is the number of bytes to be added to the vtable
3371 to find the vcall offset. For a result adjusting thunk, it is the
3372 binfo of the relevant virtual base. If NULL, then there is no
3373 virtual adjust. (The vptr is always located at offset zero from
3374 the this or result pointer.) (If the covariant type is within the
3375 class hierarchy being laid out, the vbase index is not yet known
3376 at the point we need to create the thunks, hence the need to use
3379 #define THUNK_VIRTUAL_OFFSET(DECL) \
3380 (LANG_DECL_U2_CHECK (FUNCTION_DECL_CHECK (DECL), 0)->access)
3382 /* A thunk which is equivalent to another thunk. */
3383 #define THUNK_ALIAS(DECL) \
3384 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->decl_flags.u.template_info)
3386 /* For thunk NODE, this is the FUNCTION_DECL thunked to. It is
3387 possible for the target to be a thunk too. */
3388 #define THUNK_TARGET(NODE) \
3389 (DECL_LANG_SPECIFIC (NODE)->u.f.befriending_classes)
3391 /* True for a SCOPE_REF iff the "template" keyword was used to
3392 indicate that the qualified name denotes a template. */
3393 #define QUALIFIED_NAME_IS_TEMPLATE(NODE) \
3394 (TREE_LANG_FLAG_0 (SCOPE_REF_CHECK (NODE)))
3396 /* True for an OMP_ATOMIC that has dependent parameters. These are stored
3397 as an expr in operand 1, and integer_zero_node in operand 0. */
3398 #define OMP_ATOMIC_DEPENDENT_P(NODE) \
3399 (TREE_CODE (TREE_OPERAND (OMP_ATOMIC_CHECK (NODE), 0)) == INTEGER_CST)
3401 /* Used while gimplifying continue statements bound to OMP_FOR nodes. */
3402 #define OMP_FOR_GIMPLIFYING_P(NODE) \
3403 (TREE_LANG_FLAG_0 (OMP_FOR_CHECK (NODE)))
3405 /* A language-specific token attached to the OpenMP data clauses to
3406 hold code (or code fragments) related to ctors, dtors, and op=.
3407 See semantics.c for details. */
3408 #define CP_OMP_CLAUSE_INFO(NODE) \
3409 TREE_TYPE (OMP_CLAUSE_RANGE_CHECK (NODE, OMP_CLAUSE_PRIVATE, \
3410 OMP_CLAUSE_COPYPRIVATE))
3412 /* These macros provide convenient access to the various _STMT nodes
3413 created when parsing template declarations. */
3414 #define TRY_STMTS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 0)
3415 #define TRY_HANDLERS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 1)
3417 #define EH_SPEC_STMTS(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 0)
3418 #define EH_SPEC_RAISES(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 1)
3420 #define USING_STMT_NAMESPACE(NODE) TREE_OPERAND (USING_STMT_CHECK (NODE), 0)
3422 /* Nonzero if this try block is a function try block. */
3423 #define FN_TRY_BLOCK_P(NODE) TREE_LANG_FLAG_3 (TRY_BLOCK_CHECK (NODE))
3424 #define HANDLER_PARMS(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 0)
3425 #define HANDLER_BODY(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 1)
3426 #define HANDLER_TYPE(NODE) TREE_TYPE (HANDLER_CHECK (NODE))
3428 /* CLEANUP_STMT accessors. The statement(s) covered, the cleanup to run
3429 and the VAR_DECL for which this cleanup exists. */
3430 #define CLEANUP_BODY(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 0)
3431 #define CLEANUP_EXPR(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 1)
3432 #define CLEANUP_DECL(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 2)
3434 /* IF_STMT accessors. These give access to the condition of the if
3435 statement, the then block of the if statement, and the else block
3436 of the if statement if it exists. */
3437 #define IF_COND(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 0)
3438 #define THEN_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 1)
3439 #define ELSE_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 2)
3441 /* WHILE_STMT accessors. These give access to the condition of the
3442 while statement and the body of the while statement, respectively. */
3443 #define WHILE_COND(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 0)
3444 #define WHILE_BODY(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 1)
3446 /* DO_STMT accessors. These give access to the condition of the do
3447 statement and the body of the do statement, respectively. */
3448 #define DO_COND(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 0)
3449 #define DO_BODY(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 1)
3451 /* FOR_STMT accessors. These give access to the init statement,
3452 condition, update expression, and body of the for statement,
3454 #define FOR_INIT_STMT(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 0)
3455 #define FOR_COND(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 1)
3456 #define FOR_EXPR(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 2)
3457 #define FOR_BODY(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 3)
3459 #define SWITCH_STMT_COND(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 0)
3460 #define SWITCH_STMT_BODY(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 1)
3461 #define SWITCH_STMT_TYPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 2)
3463 /* STMT_EXPR accessor. */
3464 #define STMT_EXPR_STMT(NODE) TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0)
3466 /* EXPR_STMT accessor. This gives the expression associated with an
3467 expression statement. */
3468 #define EXPR_STMT_EXPR(NODE) TREE_OPERAND (EXPR_STMT_CHECK (NODE), 0)
3470 /* True if this TARGET_EXPR was created by build_cplus_new, and so we can
3471 discard it if it isn't useful. */
3472 #define TARGET_EXPR_IMPLICIT_P(NODE) \
3473 TREE_LANG_FLAG_0 (TARGET_EXPR_CHECK (NODE))
3475 /* True if this TARGET_EXPR is the result of list-initialization of a
3477 #define TARGET_EXPR_LIST_INIT_P(NODE) \
3478 TREE_LANG_FLAG_1 (TARGET_EXPR_CHECK (NODE))
3480 /* An enumeration of the kind of tags that C++ accepts. */
3482 none_type = 0, /* Not a tag type. */
3483 record_type, /* "struct" types. */
3484 class_type, /* "class" types. */
3485 union_type, /* "union" types. */
3486 enum_type, /* "enum" types. */
3487 typename_type /* "typename" types. */
3490 /* The various kinds of lvalues we distinguish. */
3491 typedef enum cp_lvalue_kind {
3492 clk_none = 0, /* Things that are not an lvalue. */
3493 clk_ordinary = 1, /* An ordinary lvalue. */
3494 clk_class = 2, /* An rvalue of class-type. */
3495 clk_bitfield = 4, /* An lvalue for a bit-field. */
3496 clk_packed = 8 /* An lvalue for a packed field. */
3499 /* Various kinds of template specialization, instantiation, etc. */
3500 typedef enum tmpl_spec_kind {
3501 tsk_none, /* Not a template at all. */
3502 tsk_invalid_member_spec, /* An explicit member template
3503 specialization, but the enclosing
3504 classes have not all been explicitly
3506 tsk_invalid_expl_inst, /* An explicit instantiation containing
3507 template parameter lists. */
3508 tsk_excessive_parms, /* A template declaration with too many
3509 template parameter lists. */
3510 tsk_insufficient_parms, /* A template declaration with too few
3512 tsk_template, /* A template declaration. */
3513 tsk_expl_spec, /* An explicit specialization. */
3514 tsk_expl_inst /* An explicit instantiation. */
3517 /* The various kinds of access. BINFO_ACCESS depends on these being
3518 two bit quantities. The numerical values are important; they are
3519 used to initialize RTTI data structures, so changing them changes
3521 typedef enum access_kind {
3522 ak_none = 0, /* Inaccessible. */
3523 ak_public = 1, /* Accessible, as a `public' thing. */
3524 ak_protected = 2, /* Accessible, as a `protected' thing. */
3525 ak_private = 3 /* Accessible, as a `private' thing. */
3528 /* The various kinds of special functions. If you add to this list,
3529 you should update special_function_p as well. */
3530 typedef enum special_function_kind {
3531 sfk_none = 0, /* Not a special function. This enumeral
3532 must have value zero; see
3533 special_function_p. */
3534 sfk_constructor, /* A constructor. */
3535 sfk_copy_constructor, /* A copy constructor. */
3536 sfk_assignment_operator, /* An assignment operator. */
3537 sfk_destructor, /* A destructor. */
3538 sfk_complete_destructor, /* A destructor for complete objects. */
3539 sfk_base_destructor, /* A destructor for base subobjects. */
3540 sfk_deleting_destructor, /* A destructor for complete objects that
3541 deletes the object after it has been
3543 sfk_conversion /* A conversion operator. */
3544 } special_function_kind;
3546 /* The various kinds of linkage. From [basic.link],
3548 A name is said to have linkage when it might denote the same
3549 object, reference, function, type, template, namespace or value
3550 as a name introduced in another scope:
3552 -- When a name has external linkage, the entity it denotes can
3553 be referred to from scopes of other translation units or from
3554 other scopes of the same translation unit.
3556 -- When a name has internal linkage, the entity it denotes can
3557 be referred to by names from other scopes in the same
3560 -- When a name has no linkage, the entity it denotes cannot be
3561 referred to by names from other scopes. */
3563 typedef enum linkage_kind {
3564 lk_none, /* No linkage. */
3565 lk_internal, /* Internal linkage. */
3566 lk_external /* External linkage. */
3569 /* Bitmask flags to control type substitution. */
3570 typedef enum tsubst_flags_t {
3571 tf_none = 0, /* nothing special */
3572 tf_error = 1 << 0, /* give error messages */
3573 tf_warning = 1 << 1, /* give warnings too */
3574 tf_ignore_bad_quals = 1 << 2, /* ignore bad cvr qualifiers */
3575 tf_keep_type_decl = 1 << 3, /* retain typedef type decls
3576 (make_typename_type use) */
3577 tf_ptrmem_ok = 1 << 4, /* pointers to member ok (internal
3578 instantiate_type use) */
3579 tf_user = 1 << 5, /* found template must be a user template
3580 (lookup_template_class use) */
3581 tf_conv = 1 << 6, /* We are determining what kind of
3582 conversion might be permissible,
3583 not actually performing the
3585 tf_no_access_control = 1 << 7, /* Do not perform access checks, even
3586 when issuing other errors. */
3587 /* Convenient substitution flags combinations. */
3588 tf_warning_or_error = tf_warning | tf_error
3591 /* The kind of checking we can do looking in a class hierarchy. */
3592 typedef enum base_access {
3593 ba_any = 0, /* Do not check access, allow an ambiguous base,
3594 prefer a non-virtual base */
3595 ba_unique = 1 << 0, /* Must be a unique base. */
3596 ba_check_bit = 1 << 1, /* Check access. */
3597 ba_check = ba_unique | ba_check_bit,
3598 ba_ignore_scope = 1 << 2, /* Ignore access allowed by local scope. */
3599 ba_quiet = 1 << 3 /* Do not issue error messages. */
3602 /* The various kinds of access check during parsing. */
3603 typedef enum deferring_kind {
3604 dk_no_deferred = 0, /* Check access immediately */
3605 dk_deferred = 1, /* Deferred check */
3606 dk_no_check = 2 /* No access check */
3609 /* The kind of base we can find, looking in a class hierarchy.
3610 Values <0 indicate we failed. */
3611 typedef enum base_kind {
3612 bk_inaccessible = -3, /* The base is inaccessible */
3613 bk_ambig = -2, /* The base is ambiguous */
3614 bk_not_base = -1, /* It is not a base */
3615 bk_same_type = 0, /* It is the same type */
3616 bk_proper_base = 1, /* It is a proper base */
3617 bk_via_virtual = 2 /* It is a proper base, but via a virtual
3618 path. This might not be the canonical
3622 /* Node for "pointer to (virtual) function".
3623 This may be distinct from ptr_type_node so gdb can distinguish them. */
3624 #define vfunc_ptr_type_node vtable_entry_type
3627 /* For building calls to `delete'. */
3628 extern GTY(()) tree integer_two_node;
3629 extern GTY(()) tree integer_three_node;
3631 /* The number of function bodies which we are currently processing.
3632 (Zero if we are at namespace scope, one inside the body of a
3633 function, two inside the body of a function in a local class, etc.) */
3634 extern int function_depth;
3638 /* These values are used for the `STRICT' parameter to type_unification and
3639 fn_type_unification. Their meanings are described with the
3640 documentation for fn_type_unification. */
3642 typedef enum unification_kind_t {
3646 } unification_kind_t;
3650 extern int current_class_depth;
3652 /* An array of all local classes present in this translation unit, in
3653 declaration order. */
3654 extern GTY(()) VEC(tree,gc) *local_classes;
3656 /* Here's where we control how name mangling takes place. */
3658 /* Cannot use '$' up front, because this confuses gdb
3659 (names beginning with '$' are gdb-local identifiers).
3661 Note that all forms in which the '$' is significant are long enough
3662 for direct indexing (meaning that if we know there is a '$'
3663 at a particular location, we can index into the string at
3664 any other location that provides distinguishing characters). */
3666 /* Define NO_DOLLAR_IN_LABEL in your favorite tm file if your assembler
3667 doesn't allow '$' in symbol names. */
3668 #ifndef NO_DOLLAR_IN_LABEL
3672 #define AUTO_TEMP_NAME "_$tmp_"
3673 #define VFIELD_BASE "$vf"
3674 #define VFIELD_NAME "_vptr$"
3675 #define VFIELD_NAME_FORMAT "_vptr$%s"
3676 #define ANON_AGGRNAME_FORMAT "$_%d"
3678 #else /* NO_DOLLAR_IN_LABEL */
3680 #ifndef NO_DOT_IN_LABEL
3684 #define AUTO_TEMP_NAME "_.tmp_"
3685 #define VFIELD_BASE ".vf"
3686 #define VFIELD_NAME "_vptr."
3687 #define VFIELD_NAME_FORMAT "_vptr.%s"
3689 #define ANON_AGGRNAME_FORMAT "._%d"
3691 #else /* NO_DOT_IN_LABEL */
3693 #define IN_CHARGE_NAME "__in_chrg"
3694 #define AUTO_TEMP_NAME "__tmp_"
3695 #define TEMP_NAME_P(ID_NODE) \
3696 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, \
3697 sizeof (AUTO_TEMP_NAME) - 1))
3698 #define VTABLE_NAME "__vt_"
3699 #define VTABLE_NAME_P(ID_NODE) \
3700 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VTABLE_NAME, \
3701 sizeof (VTABLE_NAME) - 1))
3702 #define VFIELD_BASE "__vfb"
3703 #define VFIELD_NAME "__vptr_"
3704 #define VFIELD_NAME_P(ID_NODE) \
3705 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, \
3706 sizeof (VFIELD_NAME) - 1))
3707 #define VFIELD_NAME_FORMAT "__vptr_%s"
3709 #define ANON_AGGRNAME_PREFIX "__anon_"
3710 #define ANON_AGGRNAME_P(ID_NODE) \
3711 (!strncmp (IDENTIFIER_POINTER (ID_NODE), ANON_AGGRNAME_PREFIX, \
3712 sizeof (ANON_AGGRNAME_PREFIX) - 1))
3713 #define ANON_AGGRNAME_FORMAT "__anon_%d"
3715 #endif /* NO_DOT_IN_LABEL */
3716 #endif /* NO_DOLLAR_IN_LABEL */
3718 #define THIS_NAME "this"
3720 #define IN_CHARGE_NAME "__in_chrg"
3722 #define VTBL_PTR_TYPE "__vtbl_ptr_type"
3723 #define VTABLE_DELTA_NAME "__delta"
3724 #define VTABLE_PFN_NAME "__pfn"
3726 #if !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL)
3728 #define VTABLE_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == 'v' \
3729 && IDENTIFIER_POINTER (ID_NODE)[2] == 't' \
3730 && IDENTIFIER_POINTER (ID_NODE)[3] == JOINER)
3732 #define TEMP_NAME_P(ID_NODE) \
3733 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, sizeof (AUTO_TEMP_NAME)-1))
3734 #define VFIELD_NAME_P(ID_NODE) \
3735 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, sizeof(VFIELD_NAME)-1))
3737 /* For anonymous aggregate types, we need some sort of name to
3738 hold on to. In practice, this should not appear, but it should
3739 not be harmful if it does. */
3740 #define ANON_AGGRNAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[0] == JOINER \
3741 && IDENTIFIER_POINTER (ID_NODE)[1] == '_')
3742 #endif /* !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) */
3745 /* Nonzero if we're done parsing and into end-of-file activities. */
3749 /* A list of namespace-scope objects which have constructors or
3750 destructors which reside in the global scope. The decl is stored
3751 in the TREE_VALUE slot and the initializer is stored in the
3752 TREE_PURPOSE slot. */
3753 extern GTY(()) tree static_aggregates;
3755 enum overload_flags { NO_SPECIAL = 0, DTOR_FLAG, OP_FLAG, TYPENAME_FLAG };
3757 /* These are uses as bits in flags passed to various functions to
3758 control their behavior. Despite the LOOKUP_ prefix, many of these
3759 do not control name lookup. ??? Functions using these flags should
3760 probably be modified to accept explicit boolean flags for the
3761 behaviors relevant to them. */
3762 /* Check for access violations. */
3763 #define LOOKUP_PROTECT (1 << 0)
3764 /* Complain if no suitable member function matching the arguments is
3766 #define LOOKUP_COMPLAIN (1 << 1)
3767 #define LOOKUP_NORMAL (LOOKUP_PROTECT | LOOKUP_COMPLAIN)
3768 /* Even if the function found by lookup is a virtual function, it
3769 should be called directly. */
3770 #define LOOKUP_NONVIRTUAL (1 << 2)
3771 /* Non-converting (i.e., "explicit") constructors are not tried. */
3772 #define LOOKUP_ONLYCONVERTING (1 << 3)
3773 /* If a temporary is created, it should be created so that it lives
3774 as long as the current variable bindings; otherwise it only lives
3775 until the end of the complete-expression. It also forces
3776 direct-initialization in cases where other parts of the compiler
3777 have already generated a temporary, such as reference
3778 initialization and the catch parameter. */
3779 #define DIRECT_BIND (1 << 4)
3780 /* User-defined conversions are not permitted. (Built-in conversions
3782 #define LOOKUP_NO_CONVERSION (1 << 5)
3783 /* The user has explicitly called a destructor. (Therefore, we do
3784 not need to check that the object is non-NULL before calling the
3786 #define LOOKUP_DESTRUCTOR (1 << 6)
3787 /* Do not permit references to bind to temporaries. */
3788 #define LOOKUP_NO_TEMP_BIND (1 << 7)
3789 /* Do not accept objects, and possibly namespaces. */
3790 #define LOOKUP_PREFER_TYPES (1 << 8)
3791 /* Do not accept objects, and possibly types. */
3792 #define LOOKUP_PREFER_NAMESPACES (1 << 9)
3793 /* Accept types or namespaces. */
3794 #define LOOKUP_PREFER_BOTH (LOOKUP_PREFER_TYPES | LOOKUP_PREFER_NAMESPACES)
3795 /* Return friend declarations and un-declared builtin functions.
3796 (Normally, these entities are registered in the symbol table, but
3797 not found by lookup.) */
3798 #define LOOKUP_HIDDEN (LOOKUP_PREFER_NAMESPACES << 1)
3799 /* Prefer that the lvalue be treated as an rvalue. */
3800 #define LOOKUP_PREFER_RVALUE (LOOKUP_HIDDEN << 1)
3801 /* We're inside an init-list, so narrowing conversions are ill-formed. */
3802 #define LOOKUP_NO_NARROWING (LOOKUP_PREFER_RVALUE << 1)
3803 /* Avoid user-defined conversions for the first parameter of a copy
3805 #define LOOKUP_NO_COPY_CTOR_CONVERSION (LOOKUP_NO_NARROWING << 1)
3807 #define LOOKUP_NAMESPACES_ONLY(F) \
3808 (((F) & LOOKUP_PREFER_NAMESPACES) && !((F) & LOOKUP_PREFER_TYPES))
3809 #define LOOKUP_TYPES_ONLY(F) \
3810 (!((F) & LOOKUP_PREFER_NAMESPACES) && ((F) & LOOKUP_PREFER_TYPES))
3811 #define LOOKUP_QUALIFIERS_ONLY(F) ((F) & LOOKUP_PREFER_BOTH)
3814 /* These flags are used by the conversion code.
3815 CONV_IMPLICIT : Perform implicit conversions (standard and user-defined).
3816 CONV_STATIC : Perform the explicit conversions for static_cast.
3817 CONV_CONST : Perform the explicit conversions for const_cast.
3818 CONV_REINTERPRET: Perform the explicit conversions for reinterpret_cast.
3819 CONV_PRIVATE : Perform upcasts to private bases.
3820 CONV_FORCE_TEMP : Require a new temporary when converting to the same
3823 #define CONV_IMPLICIT 1
3824 #define CONV_STATIC 2
3825 #define CONV_CONST 4
3826 #define CONV_REINTERPRET 8
3827 #define CONV_PRIVATE 16
3828 /* #define CONV_NONCONVERTING 32 */
3829 #define CONV_FORCE_TEMP 64
3830 #define CONV_OLD_CONVERT (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
3832 #define CONV_C_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
3833 | CONV_REINTERPRET | CONV_PRIVATE | CONV_FORCE_TEMP)
3835 /* Used by build_expr_type_conversion to indicate which types are
3836 acceptable as arguments to the expression under consideration. */
3838 #define WANT_INT 1 /* integer types, including bool */
3839 #define WANT_FLOAT 2 /* floating point types */
3840 #define WANT_ENUM 4 /* enumerated types */
3841 #define WANT_POINTER 8 /* pointer types */
3842 #define WANT_NULL 16 /* null pointer constant */
3843 #define WANT_VECTOR 32 /* vector types */
3844 #define WANT_ARITH (WANT_INT | WANT_FLOAT | WANT_VECTOR)
3846 /* Used with comptypes, and related functions, to guide type
3849 #define COMPARE_STRICT 0 /* Just check if the types are the
3851 #define COMPARE_BASE 1 /* Check to see if the second type is
3852 derived from the first. */
3853 #define COMPARE_DERIVED 2 /* Like COMPARE_BASE, but in
3855 #define COMPARE_REDECLARATION 4 /* The comparison is being done when
3856 another declaration of an existing
3858 #define COMPARE_STRUCTURAL 8 /* The comparison is intended to be
3859 structural. The actual comparison
3860 will be identical to
3863 /* Used with push_overloaded_decl. */
3864 #define PUSH_GLOBAL 0 /* Push the DECL into namespace scope,
3865 regardless of the current scope. */
3866 #define PUSH_LOCAL 1 /* Push the DECL into the current
3868 #define PUSH_USING 2 /* We are pushing this DECL as the
3869 result of a using declaration. */
3871 /* Used with start function. */
3872 #define SF_DEFAULT 0 /* No flags. */
3873 #define SF_PRE_PARSED 1 /* The function declaration has
3874 already been parsed. */
3875 #define SF_INCLASS_INLINE 2 /* The function is an inline, defined
3876 in the class body. */
3878 /* Used with start_decl's initialized parameter. */
3879 #define SD_UNINITIALIZED 0
3880 #define SD_INITIALIZED 1
3881 #define SD_DEFAULTED 2
3882 #define SD_DELETED 3
3884 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, or if TYPE2
3885 is derived from TYPE1, or if TYPE2 is a pointer (reference) to a
3886 class derived from the type pointed to (referred to) by TYPE1. */
3887 #define same_or_base_type_p(TYPE1, TYPE2) \
3888 comptypes ((TYPE1), (TYPE2), COMPARE_BASE)
3890 /* These macros are used to access a TEMPLATE_PARM_INDEX. */
3891 #define TEMPLATE_PARM_INDEX_CAST(NODE) \
3892 ((template_parm_index*)TEMPLATE_PARM_INDEX_CHECK (NODE))
3893 #define TEMPLATE_PARM_IDX(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->index)
3894 #define TEMPLATE_PARM_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->level)
3895 #define TEMPLATE_PARM_DESCENDANTS(NODE) (TREE_CHAIN (NODE))
3896 #define TEMPLATE_PARM_ORIG_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->orig_level)
3897 #define TEMPLATE_PARM_DECL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->decl)
3898 #define TEMPLATE_PARM_PARAMETER_PACK(NODE) \
3899 (TREE_LANG_FLAG_0 (TEMPLATE_PARM_INDEX_CHECK (NODE)))
3901 /* These macros are for accessing the fields of TEMPLATE_TYPE_PARM,
3902 TEMPLATE_TEMPLATE_PARM and BOUND_TEMPLATE_TEMPLATE_PARM nodes. */
3903 #define TEMPLATE_TYPE_PARM_INDEX(NODE) \
3904 (TREE_CHECK3 ((NODE), TEMPLATE_TYPE_PARM, TEMPLATE_TEMPLATE_PARM, \
3905 BOUND_TEMPLATE_TEMPLATE_PARM))->type.values
3906 #define TEMPLATE_TYPE_IDX(NODE) \
3907 (TEMPLATE_PARM_IDX (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3908 #define TEMPLATE_TYPE_LEVEL(NODE) \
3909 (TEMPLATE_PARM_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3910 #define TEMPLATE_TYPE_ORIG_LEVEL(NODE) \
3911 (TEMPLATE_PARM_ORIG_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3912 #define TEMPLATE_TYPE_DECL(NODE) \
3913 (TEMPLATE_PARM_DECL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3914 #define TEMPLATE_TYPE_PARAMETER_PACK(NODE) \
3915 (TEMPLATE_PARM_PARAMETER_PACK (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3917 /* These constants can used as bit flags in the process of tree formatting.
3919 TFF_PLAIN_IDENTIFIER: unqualified part of a name.
3920 TFF_SCOPE: include the class and namespace scope of the name.
3921 TFF_CHASE_TYPEDEF: print the original type-id instead of the typedef-name.
3922 TFF_DECL_SPECIFIERS: print decl-specifiers.
3923 TFF_CLASS_KEY_OR_ENUM: precede a class-type name (resp. enum name) with
3924 a class-key (resp. `enum').
3925 TFF_RETURN_TYPE: include function return type.
3926 TFF_FUNCTION_DEFAULT_ARGUMENTS: include function default parameter values.
3927 TFF_EXCEPTION_SPECIFICATION: show function exception specification.
3928 TFF_TEMPLATE_HEADER: show the template<...> header in a
3929 template-declaration.
3930 TFF_TEMPLATE_NAME: show only template-name.
3931 TFF_EXPR_IN_PARENS: parenthesize expressions.
3932 TFF_NO_FUNCTION_ARGUMENTS: don't show function arguments.
3933 TFF_UNQUALIFIED_NAME: do not print the qualifying scope of the
3934 top-level entity. */
3936 #define TFF_PLAIN_IDENTIFIER (0)
3937 #define TFF_SCOPE (1)
3938 #define TFF_CHASE_TYPEDEF (1 << 1)
3939 #define TFF_DECL_SPECIFIERS (1 << 2)
3940 #define TFF_CLASS_KEY_OR_ENUM (1 << 3)
3941 #define TFF_RETURN_TYPE (1 << 4)
3942 #define TFF_FUNCTION_DEFAULT_ARGUMENTS (1 << 5)
3943 #define TFF_EXCEPTION_SPECIFICATION (1 << 6)
3944 #define TFF_TEMPLATE_HEADER (1 << 7)
3945 #define TFF_TEMPLATE_NAME (1 << 8)
3946 #define TFF_EXPR_IN_PARENS (1 << 9)
3947 #define TFF_NO_FUNCTION_ARGUMENTS (1 << 10)
3948 #define TFF_UNQUALIFIED_NAME (1 << 11)
3950 /* Returns the TEMPLATE_DECL associated to a TEMPLATE_TEMPLATE_PARM
3952 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_DECL(NODE) \
3953 ((TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM) \
3954 ? TYPE_TI_TEMPLATE (NODE) \
3959 extern void init_reswords (void);
3961 /* Indexed by TREE_CODE, these tables give C-looking names to
3962 operators represented by TREE_CODES. For example,
3963 opname_tab[(int) MINUS_EXPR] == "-". */
3964 extern const char **opname_tab, **assignop_tab;
3966 typedef struct operator_name_info_t GTY(())
3968 /* The IDENTIFIER_NODE for the operator. */
3970 /* The name of the operator. */
3972 /* The mangled name of the operator. */
3973 const char *mangled_name;
3974 /* The arity of the operator. */
3976 } operator_name_info_t;
3978 /* A mapping from tree codes to operator name information. */
3979 extern GTY(()) operator_name_info_t operator_name_info
3980 [(int) MAX_TREE_CODES];
3981 /* Similar, but for assignment operators. */
3982 extern GTY(()) operator_name_info_t assignment_operator_name_info
3983 [(int) MAX_TREE_CODES];
3985 /* A type-qualifier, or bitmask therefore, using the TYPE_QUAL
3988 typedef int cp_cv_quals;
3990 /* A storage class. */
3992 typedef enum cp_storage_class {
3993 /* sc_none must be zero so that zeroing a cp_decl_specifier_seq
3994 sets the storage_class field to sc_none. */
4003 /* An individual decl-specifier. */
4005 typedef enum cp_decl_spec {
4007 ds_signed = ds_first,
4024 /* A decl-specifier-seq. */
4026 typedef struct cp_decl_specifier_seq {
4027 /* The number of times each of the keywords has been seen. */
4028 unsigned specs[(int) ds_last];
4029 /* The primary type, if any, given by the decl-specifier-seq.
4030 Modifiers, like "short", "const", and "unsigned" are not
4031 reflected here. This field will be a TYPE, unless a typedef-name
4032 was used, in which case it will be a TYPE_DECL. */
4034 /* The location of the primary type. Mainly used for error
4036 location_t type_location;
4037 /* The attributes, if any, provided with the specifier sequence. */
4039 /* If non-NULL, a built-in type that the user attempted to redefine
4040 to some other type. */
4041 tree redefined_builtin_type;
4042 /* The storage class specified -- or sc_none if no storage class was
4043 explicitly specified. */
4044 cp_storage_class storage_class;
4045 /* True iff TYPE_SPEC indicates a user-defined type. */
4046 BOOL_BITFIELD user_defined_type_p : 1;
4047 /* True iff multiple types were (erroneously) specified for this
4048 decl-specifier-seq. */
4049 BOOL_BITFIELD multiple_types_p : 1;
4050 /* True iff multiple storage classes were (erroneously) specified
4051 for this decl-specifier-seq or a combination of a storage class
4052 with a typedef specifier. */
4053 BOOL_BITFIELD conflicting_specifiers_p : 1;
4054 /* True iff at least one decl-specifier was found. */
4055 BOOL_BITFIELD any_specifiers_p : 1;
4056 /* True iff "int" was explicitly provided. */
4057 BOOL_BITFIELD explicit_int_p : 1;
4058 /* True iff "char" was explicitly provided. */
4059 BOOL_BITFIELD explicit_char_p : 1;
4060 } cp_decl_specifier_seq;
4062 /* The various kinds of declarators. */
4064 typedef enum cp_declarator_kind {
4072 } cp_declarator_kind;
4076 typedef struct cp_declarator cp_declarator;
4078 typedef struct cp_parameter_declarator cp_parameter_declarator;
4080 /* A parameter, before it has been semantically analyzed. */
4081 struct cp_parameter_declarator {
4082 /* The next parameter, or NULL_TREE if none. */
4083 cp_parameter_declarator *next;
4084 /* The decl-specifiers-seq for the parameter. */
4085 cp_decl_specifier_seq decl_specifiers;
4086 /* The declarator for the parameter. */
4087 cp_declarator *declarator;
4088 /* The default-argument expression, or NULL_TREE, if none. */
4089 tree default_argument;
4090 /* True iff this is the first parameter in the list and the
4091 parameter sequence ends with an ellipsis. */
4096 struct cp_declarator {
4097 /* The kind of declarator. */
4098 ENUM_BITFIELD (cp_declarator_kind) kind : 4;
4099 /* Whether we parsed an ellipsis (`...') just before the declarator,
4100 to indicate this is a parameter pack. */
4101 BOOL_BITFIELD parameter_pack_p : 1;
4102 /* Attributes that apply to this declarator. */
4104 /* For all but cdk_id and cdk_error, the contained declarator. For
4105 cdk_id and cdk_error, guaranteed to be NULL. */
4106 cp_declarator *declarator;
4107 location_t id_loc; /* Currently only set for cdk_id and cdk_function. */
4109 /* For identifiers. */
4111 /* If non-NULL, the qualifying scope (a NAMESPACE_DECL or
4112 *_TYPE) for this identifier. */
4113 tree qualifying_scope;
4114 /* The unqualified name of the entity -- an IDENTIFIER_NODE,
4115 BIT_NOT_EXPR, or TEMPLATE_ID_EXPR. */
4116 tree unqualified_name;
4117 /* If this is the name of a function, what kind of special
4118 function (if any). */
4119 special_function_kind sfk;
4121 /* For functions. */
4123 /* The parameters to the function as a TREE_LIST of decl/default. */
4125 /* The cv-qualifiers for the function. */
4126 cp_cv_quals qualifiers;
4127 /* The exception-specification for the function. */
4128 tree exception_specification;
4129 /* The late-specified return type, if any. */
4130 tree late_return_type;
4134 /* The bounds to the array. */
4137 /* For cdk_pointer and cdk_ptrmem. */
4139 /* The cv-qualifiers for the pointer. */
4140 cp_cv_quals qualifiers;
4141 /* For cdk_ptrmem, the class type containing the member. */
4144 /* For cdk_reference */
4146 /* The cv-qualifiers for the reference. These qualifiers are
4147 only used to diagnose ill-formed code. */
4148 cp_cv_quals qualifiers;
4149 /* Whether this is an rvalue reference */
4155 /* A level of template instantiation. */
4156 struct tinst_level GTY(())
4158 /* The immediately deeper level in the chain. */
4159 struct tinst_level *next;
4161 /* The original node. Can be either a DECL (for a function or static
4162 data member) or a TYPE (for a class), depending on what we were
4163 asked to instantiate. */
4166 /* The location where the template is instantiated. */
4169 /* True if the location is in a system header. */
4170 bool in_system_header_p;
4173 /* A parameter list indicating for a function with no parameters,
4174 e.g "int f(void)". */
4175 extern cp_parameter_declarator *no_parameters;
4178 extern bool check_dtor_name (tree, tree);
4180 extern tree build_vfield_ref (tree, tree);
4181 extern tree build_conditional_expr (tree, tree, tree,
4183 extern tree build_addr_func (tree);
4184 extern tree build_call_a (tree, int, tree*);
4185 extern tree build_call_n (tree, int, ...);
4186 extern bool null_ptr_cst_p (tree);
4187 extern bool sufficient_parms_p (const_tree);
4188 extern tree type_decays_to (tree);
4189 extern tree build_user_type_conversion (tree, tree, int);
4190 extern tree build_new_function_call (tree, tree, bool,
4192 extern tree build_operator_new_call (tree, tree, tree *, tree *,
4194 extern tree build_new_method_call (tree, tree, tree, tree, int,
4195 tree *, tsubst_flags_t);
4196 extern tree build_special_member_call (tree, tree, tree, tree, int,
4198 extern tree build_new_op (enum tree_code, int, tree,
4201 extern tree build_op_delete_call (enum tree_code, tree, tree, bool, tree, tree);
4202 extern bool can_convert (tree, tree);
4203 extern bool can_convert_arg (tree, tree, tree, int);
4204 extern bool can_convert_arg_bad (tree, tree, tree);
4205 extern bool enforce_access (tree, tree, tree);
4206 extern tree convert_default_arg (tree, tree, tree, int);
4207 extern tree convert_arg_to_ellipsis (tree);
4208 extern tree build_x_va_arg (tree, tree);
4209 extern tree cxx_type_promotes_to (tree);
4210 extern tree type_passed_as (tree);
4211 extern tree convert_for_arg_passing (tree, tree);
4212 extern bool is_properly_derived_from (tree, tree);
4213 extern tree set_up_extended_ref_temp (tree, tree, tree *, tree *);
4214 extern tree initialize_reference (tree, tree, tree, tree *);
4215 extern tree make_temporary_var_for_ref_to_temp (tree, tree);
4216 extern tree strip_top_quals (tree);
4217 extern tree perform_implicit_conversion (tree, tree, tsubst_flags_t);
4218 extern tree perform_direct_initialization_if_possible (tree, tree, bool,
4220 extern tree in_charge_arg_for_name (tree);
4221 extern tree build_cxx_call (tree, int, tree *);
4222 extern bool is_std_init_list (tree);
4223 extern bool is_list_ctor (tree);
4224 #ifdef ENABLE_CHECKING
4225 extern void validate_conversion_obstack (void);
4226 #endif /* ENABLE_CHECKING */
4229 extern tree build_base_path (enum tree_code, tree,
4231 extern tree convert_to_base (tree, tree, bool, bool);
4232 extern tree convert_to_base_statically (tree, tree);
4233 extern tree build_vtbl_ref (tree, tree);
4234 extern tree build_vfn_ref (tree, tree);
4235 extern tree get_vtable_decl (tree, int);
4236 extern void resort_type_method_vec (void *, void *,
4237 gt_pointer_operator, void *);
4238 extern bool add_method (tree, tree, tree);
4239 extern bool currently_open_class (tree);
4240 extern tree currently_open_derived_class (tree);
4241 extern tree finish_struct (tree, tree);
4242 extern void finish_struct_1 (tree);
4243 extern int resolves_to_fixed_type_p (tree, int *);
4244 extern void init_class_processing (void);
4245 extern int is_empty_class (tree);
4246 extern void pushclass (tree);
4247 extern void popclass (void);
4248 extern void push_nested_class (tree);
4249 extern void pop_nested_class (void);
4250 extern int current_lang_depth (void);
4251 extern void push_lang_context (tree);
4252 extern void pop_lang_context (void);
4253 extern tree instantiate_type (tree, tree, tsubst_flags_t);
4254 extern void print_class_statistics (void);
4255 extern void cxx_print_statistics (void);
4256 extern void cxx_print_xnode (FILE *, tree, int);
4257 extern void cxx_print_decl (FILE *, tree, int);
4258 extern void cxx_print_type (FILE *, tree, int);
4259 extern void cxx_print_identifier (FILE *, tree, int);
4260 extern void cxx_print_error_function (struct diagnostic_context *,
4262 struct diagnostic_info *);
4263 extern void build_self_reference (void);
4264 extern int same_signature_p (const_tree, const_tree);
4265 extern void maybe_add_class_template_decl_list (tree, tree, int);
4266 extern void unreverse_member_declarations (tree);
4267 extern void invalidate_class_lookup_cache (void);
4268 extern void maybe_note_name_used_in_class (tree, tree);
4269 extern void note_name_declared_in_class (tree, tree);
4270 extern tree get_vtbl_decl_for_binfo (tree);
4271 extern void debug_class (tree);
4272 extern void debug_thunks (tree);
4273 extern tree cp_fold_obj_type_ref (tree, tree);
4274 extern void set_linkage_according_to_type (tree, tree);
4275 extern void determine_key_method (tree);
4276 extern void check_for_override (tree, tree);
4277 extern void push_class_stack (void);
4278 extern void pop_class_stack (void);
4279 extern bool type_has_user_nondefault_constructor (tree);
4280 extern bool type_has_user_provided_constructor (tree);
4281 extern bool type_has_user_provided_default_constructor (tree);
4282 extern bool defaultable_fn_p (tree);
4285 extern tree convert_to_reference (tree, tree, int, int, tree);
4286 extern tree convert_from_reference (tree);
4287 extern tree force_rvalue (tree);
4288 extern tree ocp_convert (tree, tree, int, int);
4289 extern tree cp_convert (tree, tree);
4290 extern tree cp_convert_and_check (tree, tree);
4291 extern tree convert_to_void (tree, const char */*implicit context*/,
4293 extern tree convert_force (tree, tree, int);
4294 extern tree build_expr_type_conversion (int, tree, bool);
4295 extern tree type_promotes_to (tree);
4296 extern tree perform_qualification_conversions (tree, tree);
4297 extern void clone_function_decl (tree, int);
4298 extern void adjust_clone_args (tree);
4301 extern tree poplevel (int, int, int);
4302 extern void insert_block (tree);
4303 extern tree pushdecl (tree);
4304 extern tree pushdecl_maybe_friend (tree, bool);
4305 extern void cxx_init_decl_processing (void);
4306 enum cp_tree_node_structure_enum cp_tree_node_structure
4307 (union lang_tree_node *);
4308 extern bool cxx_mark_addressable (tree);
4309 extern void maybe_push_cleanup_level (tree);
4310 extern void finish_scope (void);
4311 extern void push_switch (tree);
4312 extern void pop_switch (void);
4313 extern tree pushtag (tree, tree, tag_scope);
4314 extern tree make_anon_name (void);
4315 extern int decls_match (tree, tree);
4316 extern tree duplicate_decls (tree, tree, bool);
4317 extern tree pushdecl_top_level_maybe_friend (tree, bool);
4318 extern tree pushdecl_top_level_and_finish (tree, tree);
4319 extern tree declare_local_label (tree);
4320 extern tree define_label (location_t, tree);
4321 extern void check_goto (tree);
4322 extern bool check_omp_return (void);
4323 extern tree make_typename_type (tree, tree, enum tag_types, tsubst_flags_t);
4324 extern tree make_unbound_class_template (tree, tree, tree, tsubst_flags_t);
4325 extern tree check_for_out_of_scope_variable (tree);
4326 extern tree build_library_fn_ptr (const char *, tree);
4327 extern tree build_cp_library_fn_ptr (const char *, tree);
4328 extern tree push_library_fn (tree, tree, tree);
4329 extern tree push_void_library_fn (tree, tree);
4330 extern tree push_throw_library_fn (tree, tree);
4331 extern tree check_tag_decl (cp_decl_specifier_seq *);
4332 extern tree shadow_tag (cp_decl_specifier_seq *);
4333 extern tree groktypename (cp_decl_specifier_seq *, const cp_declarator *);
4334 extern tree start_decl (const cp_declarator *, cp_decl_specifier_seq *, int, tree, tree, tree *);
4335 extern void start_decl_1 (tree, bool);
4336 extern bool check_array_initializer (tree, tree, tree);
4337 extern void cp_finish_decl (tree, tree, bool, tree, int);
4338 extern void finish_decl (tree, tree, tree);
4339 extern int cp_complete_array_type (tree *, tree, bool);
4340 extern tree build_ptrmemfunc_type (tree);
4341 extern tree build_ptrmem_type (tree, tree);
4342 /* the grokdeclarator prototype is in decl.h */
4343 extern tree build_this_parm (tree, cp_cv_quals);
4344 extern int copy_fn_p (const_tree);
4345 extern bool move_fn_p (const_tree);
4346 extern tree get_scope_of_declarator (const cp_declarator *);
4347 extern void grok_special_member_properties (tree);
4348 extern int grok_ctor_properties (const_tree, const_tree);
4349 extern bool grok_op_properties (tree, bool);
4350 extern tree xref_tag (enum tag_types, tree, tag_scope, bool);
4351 extern tree xref_tag_from_type (tree, tree, tag_scope);
4352 extern bool xref_basetypes (tree, tree);
4353 extern tree start_enum (tree, tree, bool);
4354 extern void finish_enum (tree);
4355 extern void build_enumerator (tree, tree, tree);
4356 extern tree lookup_enumerator (tree, tree);
4357 extern void start_preparsed_function (tree, tree, int);
4358 extern int start_function (cp_decl_specifier_seq *, const cp_declarator *, tree);
4359 extern tree begin_function_body (void);
4360 extern void finish_function_body (tree);
4361 extern tree outer_curly_brace_block (tree);
4362 extern tree finish_function (int);
4363 extern tree start_method (cp_decl_specifier_seq *, const cp_declarator *, tree);
4364 extern tree finish_method (tree);
4365 extern void maybe_register_incomplete_var (tree);
4366 extern void complete_vars (tree);
4367 extern void finish_stmt (void);
4368 extern void print_other_binding_stack (struct cp_binding_level *);
4369 extern void revert_static_member_fn (tree);
4370 extern void fixup_anonymous_aggr (tree);
4371 extern int check_static_variable_definition (tree, tree);
4372 extern tree compute_array_index_type (tree, tree);
4373 extern tree check_default_argument (tree, tree);
4374 typedef int (*walk_namespaces_fn) (tree, void *);
4375 extern int walk_namespaces (walk_namespaces_fn,
4377 extern int wrapup_globals_for_namespace (tree, void *);
4378 extern tree create_implicit_typedef (tree, tree);
4379 extern tree maybe_push_decl (tree);
4380 extern tree force_target_expr (tree, tree);
4381 extern tree build_target_expr_with_type (tree, tree);
4382 extern int local_variable_p (const_tree);
4383 extern tree register_dtor_fn (tree);
4384 extern tmpl_spec_kind current_tmpl_spec_kind (int);
4385 extern tree cp_fname_init (const char *, tree *);
4386 extern tree cxx_builtin_function (tree decl);
4387 extern tree cxx_builtin_function_ext_scope (tree decl);
4388 extern tree check_elaborated_type_specifier (enum tag_types, tree, bool);
4389 extern void warn_extern_redeclared_static (tree, tree);
4390 extern const char *cxx_comdat_group (tree);
4391 extern bool cp_missing_noreturn_ok_p (tree);
4392 extern void initialize_artificial_var (tree, tree);
4393 extern tree check_var_type (tree, tree);
4394 extern tree reshape_init (tree, tree);
4396 extern bool defer_mark_used_calls;
4397 extern GTY(()) VEC(tree, gc) *deferred_mark_used_calls;
4400 extern bool check_java_method (tree);
4401 extern tree build_memfn_type (tree, tree, cp_cv_quals);
4402 extern void maybe_retrofit_in_chrg (tree);
4403 extern void maybe_make_one_only (tree);
4404 extern void grokclassfn (tree, tree,
4405 enum overload_flags);
4406 extern tree grok_array_decl (tree, tree);
4407 extern tree delete_sanity (tree, tree, bool, int);
4408 extern tree check_classfn (tree, tree, tree);
4409 extern void check_member_template (tree);
4410 extern tree grokfield (const cp_declarator *, cp_decl_specifier_seq *,
4411 tree, bool, tree, tree);
4412 extern tree grokbitfield (const cp_declarator *, cp_decl_specifier_seq *,
4414 extern tree cp_reconstruct_complex_type (tree, tree);
4415 extern void cplus_decl_attributes (tree *, tree, int);
4416 extern void finish_anon_union (tree);
4417 extern void cp_write_global_declarations (void);
4418 extern tree coerce_new_type (tree);
4419 extern tree coerce_delete_type (tree);
4420 extern void comdat_linkage (tree);
4421 extern void determine_visibility (tree);
4422 extern void constrain_class_visibility (tree);
4423 extern void update_member_visibility (tree);
4424 extern void import_export_decl (tree);
4425 extern tree build_cleanup (tree);
4426 extern tree build_offset_ref_call_from_tree (tree, tree);
4427 extern void check_default_args (tree);
4428 extern void mark_used (tree);
4429 extern void finish_static_data_member_decl (tree, tree, bool, tree, int);
4430 extern tree cp_build_parm_decl (tree, tree);
4431 extern tree get_guard (tree);
4432 extern tree get_guard_cond (tree);
4433 extern tree set_guard (tree);
4434 extern tree cxx_callgraph_analyze_expr (tree *, int *);
4435 extern void mark_needed (tree);
4436 extern bool decl_needed_p (tree);
4437 extern void note_vague_linkage_fn (tree);
4438 extern tree build_artificial_parm (tree, tree);
4439 extern bool possibly_inlined_p (tree);
4442 extern void init_error (void);
4443 extern const char *type_as_string (tree, int);
4444 extern const char *decl_as_string (tree, int);
4445 extern const char *expr_as_string (tree, int);
4446 extern const char *lang_decl_name (tree, int);
4447 extern const char *language_to_string (enum languages);
4448 extern const char *class_key_or_enum_as_string (tree);
4449 extern void print_instantiation_context (void);
4450 extern void maybe_warn_variadic_templates (void);
4451 extern void maybe_warn_cpp0x (const char *);
4454 extern void init_exception_processing (void);
4455 extern tree expand_start_catch_block (tree);
4456 extern void expand_end_catch_block (void);
4457 extern tree build_exc_ptr (void);
4458 extern tree build_throw (tree);
4459 extern int nothrow_libfn_p (const_tree);
4460 extern void check_handlers (tree);
4461 extern void choose_personality_routine (enum languages);
4462 extern tree eh_type_info (tree);
4465 extern tree cplus_expand_constant (tree);
4468 extern int is_friend (tree, tree);
4469 extern void make_friend_class (tree, tree, bool);
4470 extern void add_friend (tree, tree, bool);
4471 extern tree do_friend (tree, tree, tree, tree, enum overload_flags, bool);
4474 extern tree expand_member_init (tree);
4475 extern void emit_mem_initializers (tree);
4476 extern tree build_aggr_init (tree, tree, int,
4478 extern int is_class_type (tree, int);
4479 extern tree get_type_value (tree);
4480 extern tree build_zero_init (tree, tree, bool);
4481 extern tree build_value_init (tree);
4482 extern tree build_offset_ref (tree, tree, bool);
4483 extern tree build_new (tree, tree, tree, tree, int,
4485 extern tree build_vec_init (tree, tree, tree, bool, int,
4487 extern tree build_delete (tree, tree,
4488 special_function_kind,
4490 extern void push_base_cleanups (void);
4491 extern tree build_vec_delete (tree, tree,
4492 special_function_kind, int);
4493 extern tree create_temporary_var (tree);
4494 extern void initialize_vtbl_ptrs (tree);
4495 extern tree build_java_class_ref (tree);
4496 extern tree integral_constant_value (tree);
4499 extern void cxx_dup_lang_specific_decl (tree);
4500 extern void yyungetc (int, int);
4502 extern tree unqualified_name_lookup_error (tree);
4503 extern tree unqualified_fn_lookup_error (tree);
4504 extern tree build_lang_decl (enum tree_code, tree, tree);
4505 extern void retrofit_lang_decl (tree);
4506 extern tree copy_decl (tree);
4507 extern tree copy_type (tree);
4508 extern tree cxx_make_type (enum tree_code);
4509 extern tree make_class_type (enum tree_code);
4510 extern void yyerror (const char *);
4511 extern void yyhook (int);
4512 extern bool cxx_init (void);
4513 extern void cxx_finish (void);
4514 extern bool in_main_input_context (void);
4517 extern void init_method (void);
4518 extern tree make_thunk (tree, bool, tree, tree);
4519 extern void finish_thunk (tree);
4520 extern void use_thunk (tree, bool);
4521 extern void synthesize_method (tree);
4522 extern tree lazily_declare_fn (special_function_kind,
4524 extern tree skip_artificial_parms_for (const_tree, tree);
4525 extern int num_artificial_parms_for (const_tree);
4526 extern tree make_alias_for (tree, tree);
4527 extern tree locate_copy (tree, void *);
4528 extern tree locate_ctor (tree, void *);
4529 extern tree locate_dtor (tree, void *);
4532 extern bool maybe_clone_body (tree);
4535 extern bool check_template_shadow (tree);
4536 extern tree get_innermost_template_args (tree, int);
4537 extern void maybe_begin_member_template_processing (tree);
4538 extern void maybe_end_member_template_processing (void);
4539 extern tree finish_member_template_decl (tree);
4540 extern void begin_template_parm_list (void);
4541 extern bool begin_specialization (void);
4542 extern void reset_specialization (void);
4543 extern void end_specialization (void);
4544 extern void begin_explicit_instantiation (void);
4545 extern void end_explicit_instantiation (void);
4546 extern tree check_explicit_specialization (tree, tree, int, int);
4547 extern tree make_auto (void);
4548 extern tree do_auto_deduction (tree, tree, tree);
4549 extern tree type_uses_auto (tree);
4550 extern void append_type_to_template_for_access_check (tree, tree, tree);
4551 extern tree splice_late_return_type (tree, tree);
4552 extern bool is_auto (const_tree);
4553 extern tree process_template_parm (tree, tree, bool, bool);
4554 extern tree end_template_parm_list (tree);
4555 extern void end_template_decl (void);
4556 extern bool check_default_tmpl_args (tree, tree, int, int, int);
4557 extern tree push_template_decl (tree);
4558 extern tree push_template_decl_real (tree, bool);
4559 extern bool redeclare_class_template (tree, tree);
4560 extern tree lookup_template_class (tree, tree, tree, tree,
4561 int, tsubst_flags_t);
4562 extern tree lookup_template_function (tree, tree);
4563 extern int uses_template_parms (tree);
4564 extern int uses_template_parms_level (tree, int);
4565 extern tree instantiate_class_template (tree);
4566 extern tree instantiate_template (tree, tree, tsubst_flags_t);
4567 extern int fn_type_unification (tree, tree, tree, tree,
4568 tree, unification_kind_t, int);
4569 extern void mark_decl_instantiated (tree, int);
4570 extern int more_specialized_fn (tree, tree, int);
4571 extern void do_decl_instantiation (tree, tree);
4572 extern void do_type_instantiation (tree, tree, tsubst_flags_t);
4573 extern tree instantiate_decl (tree, int, bool);
4574 extern int comp_template_parms (const_tree, const_tree);
4575 extern bool uses_parameter_packs (tree);
4576 extern bool template_parameter_pack_p (const_tree);
4577 extern tree make_pack_expansion (tree);
4578 extern bool check_for_bare_parameter_packs (tree);
4579 extern tree get_template_info (tree);
4580 extern int template_class_depth (tree);
4581 extern int is_specialization_of (tree, tree);
4582 extern bool is_specialization_of_friend (tree, tree);
4583 extern int comp_template_args (tree, tree);
4584 extern tree maybe_process_partial_specialization (tree);
4585 extern tree most_specialized_instantiation (tree);
4586 extern void print_candidates (tree);
4587 extern void instantiate_pending_templates (int);
4588 extern tree tsubst_default_argument (tree, tree, tree);
4589 extern tree tsubst_copy_and_build (tree, tree, tsubst_flags_t,
4591 extern tree most_general_template (tree);
4592 extern tree get_mostly_instantiated_function_type (tree);
4593 extern int problematic_instantiation_changed (void);
4594 extern void record_last_problematic_instantiation (void);
4595 extern struct tinst_level *current_instantiation(void);
4596 extern tree maybe_get_template_decl_from_type_decl (tree);
4597 extern int processing_template_parmlist;
4598 extern bool dependent_type_p (tree);
4599 extern bool any_dependent_template_arguments_p (const_tree);
4600 extern bool dependent_template_p (tree);
4601 extern bool dependent_template_id_p (tree, tree);
4602 extern bool type_dependent_expression_p (tree);
4603 extern bool any_type_dependent_arguments_p (const_tree);
4604 extern bool value_dependent_expression_p (tree);
4605 extern bool any_value_dependent_elements_p (const_tree);
4606 extern bool dependent_omp_for_p (tree, tree, tree, tree);
4607 extern tree resolve_typename_type (tree, bool);
4608 extern tree template_for_substitution (tree);
4609 extern tree build_non_dependent_expr (tree);
4610 extern tree build_non_dependent_args (tree);
4611 extern bool reregister_specialization (tree, tree, tree);
4612 extern tree fold_non_dependent_expr (tree);
4613 extern bool explicit_class_specialization_p (tree);
4614 extern struct tinst_level *outermost_tinst_level(void);
4615 extern bool parameter_of_template_p (tree, tree);
4618 extern void init_repo (void);
4619 extern int repo_emit_p (tree);
4620 extern bool repo_export_class_p (const_tree);
4621 extern void finish_repo (void);
4624 /* A vector of all tinfo decls that haven't been emitted yet. */
4625 extern GTY(()) VEC(tree,gc) *unemitted_tinfo_decls;
4627 extern void init_rtti_processing (void);
4628 extern tree build_typeid (tree);
4629 extern tree get_tinfo_decl (tree);
4630 extern tree get_typeid (tree);
4631 extern tree build_headof (tree);
4632 extern tree build_dynamic_cast (tree, tree, tsubst_flags_t);
4633 extern void emit_support_tinfos (void);
4634 extern bool emit_tinfo_decl (tree);
4637 extern bool accessible_base_p (tree, tree, bool);
4638 extern tree lookup_base (tree, tree, base_access,
4640 extern tree dcast_base_hint (tree, tree);
4641 extern int accessible_p (tree, tree, bool);
4642 extern tree lookup_field_1 (tree, tree, bool);
4643 extern tree lookup_field (tree, tree, int, bool);
4644 extern int lookup_fnfields_1 (tree, tree);
4645 extern int class_method_index_for_fn (tree, tree);
4646 extern tree lookup_fnfields (tree, tree, int);
4647 extern tree lookup_member (tree, tree, int, bool);
4648 extern int look_for_overrides (tree, tree);
4649 extern void get_pure_virtuals (tree);
4650 extern void maybe_suppress_debug_info (tree);
4651 extern void note_debug_info_needed (tree);
4652 extern void print_search_statistics (void);
4653 extern void reinit_search_statistics (void);
4654 extern tree current_scope (void);
4655 extern int at_function_scope_p (void);
4656 extern bool at_class_scope_p (void);
4657 extern bool at_namespace_scope_p (void);
4658 extern tree context_for_name_lookup (tree);
4659 extern tree lookup_conversions (tree);
4660 extern tree binfo_from_vbase (tree);
4661 extern tree binfo_for_vbase (tree, tree);
4662 extern tree look_for_overrides_here (tree, tree);
4663 #define dfs_skip_bases ((tree)1)
4664 extern tree dfs_walk_all (tree, tree (*) (tree, void *),
4665 tree (*) (tree, void *), void *);
4666 extern tree dfs_walk_once (tree, tree (*) (tree, void *),
4667 tree (*) (tree, void *), void *);
4668 extern tree binfo_via_virtual (tree, tree);
4669 extern tree build_baselink (tree, tree, tree, tree);
4670 extern tree adjust_result_of_qualified_name_lookup
4672 extern tree copied_binfo (tree, tree);
4673 extern tree original_binfo (tree, tree);
4674 extern int shared_member_p (tree);
4677 /* The representation of a deferred access check. */
4679 typedef struct deferred_access_check GTY(())
4681 /* The base class in which the declaration is referenced. */
4683 /* The declaration whose access must be checked. */
4685 /* The declaration that should be used in the error message. */
4687 } deferred_access_check;
4688 DEF_VEC_O(deferred_access_check);
4689 DEF_VEC_ALLOC_O(deferred_access_check,gc);
4691 /* in semantics.c */
4692 extern void push_deferring_access_checks (deferring_kind);
4693 extern void resume_deferring_access_checks (void);
4694 extern void stop_deferring_access_checks (void);
4695 extern void pop_deferring_access_checks (void);
4696 extern VEC (deferred_access_check,gc)* get_deferred_access_checks (void);
4697 extern void pop_to_parent_deferring_access_checks (void);
4698 extern void perform_access_checks (VEC (deferred_access_check,gc)*);
4699 extern void perform_deferred_access_checks (void);
4700 extern void perform_or_defer_access_check (tree, tree, tree);
4701 extern int stmts_are_full_exprs_p (void);
4702 extern void init_cp_semantics (void);
4703 extern tree do_poplevel (tree);
4704 extern void add_decl_expr (tree);
4705 extern tree finish_expr_stmt (tree);
4706 extern tree begin_if_stmt (void);
4707 extern void finish_if_stmt_cond (tree, tree);
4708 extern tree finish_then_clause (tree);
4709 extern void begin_else_clause (tree);
4710 extern void finish_else_clause (tree);
4711 extern void finish_if_stmt (tree);
4712 extern tree begin_while_stmt (void);
4713 extern void finish_while_stmt_cond (tree, tree);
4714 extern void finish_while_stmt (tree);
4715 extern tree begin_do_stmt (void);
4716 extern void finish_do_body (tree);
4717 extern void finish_do_stmt (tree, tree);
4718 extern tree finish_return_stmt (tree);
4719 extern tree begin_for_stmt (void);
4720 extern void finish_for_init_stmt (tree);
4721 extern void finish_for_cond (tree, tree);
4722 extern void finish_for_expr (tree, tree);
4723 extern void finish_for_stmt (tree);
4724 extern tree finish_break_stmt (void);
4725 extern tree finish_continue_stmt (void);
4726 extern tree begin_switch_stmt (void);
4727 extern void finish_switch_cond (tree, tree);
4728 extern void finish_switch_stmt (tree);
4729 extern tree finish_case_label (tree, tree);
4730 extern tree finish_goto_stmt (tree);
4731 extern tree begin_try_block (void);
4732 extern void finish_try_block (tree);
4733 extern tree begin_eh_spec_block (void);
4734 extern void finish_eh_spec_block (tree, tree);
4735 extern void finish_handler_sequence (tree);
4736 extern tree begin_function_try_block (tree *);
4737 extern void finish_function_try_block (tree);
4738 extern void finish_function_handler_sequence (tree, tree);
4739 extern void finish_cleanup_try_block (tree);
4740 extern tree begin_handler (void);
4741 extern void finish_handler_parms (tree, tree);
4742 extern void finish_handler (tree);
4743 extern void finish_cleanup (tree, tree);
4750 extern tree begin_compound_stmt (unsigned int);
4752 extern void finish_compound_stmt (tree);
4753 extern tree finish_asm_stmt (int, tree, tree, tree, tree);
4754 extern tree finish_label_stmt (tree);
4755 extern void finish_label_decl (tree);
4756 extern tree finish_parenthesized_expr (tree);
4757 extern tree finish_non_static_data_member (tree, tree, tree);
4758 extern tree begin_stmt_expr (void);
4759 extern tree finish_stmt_expr_expr (tree, tree);
4760 extern tree finish_stmt_expr (tree, bool);
4761 extern tree stmt_expr_value_expr (tree);
4762 extern tree perform_koenig_lookup (tree, tree);
4763 extern tree finish_call_expr (tree, tree, bool, bool,
4765 extern tree finish_increment_expr (tree, enum tree_code);
4766 extern tree finish_this_expr (void);
4767 extern tree finish_pseudo_destructor_expr (tree, tree, tree);
4768 extern tree finish_unary_op_expr (enum tree_code, tree);
4769 extern tree finish_compound_literal (tree, tree);
4770 extern tree finish_fname (tree);
4771 extern void finish_translation_unit (void);
4772 extern tree finish_template_type_parm (tree, tree);
4773 extern tree finish_template_template_parm (tree, tree);
4774 extern tree begin_class_definition (tree, tree);
4775 extern void finish_template_decl (tree);
4776 extern tree finish_template_type (tree, tree, int);
4777 extern tree finish_base_specifier (tree, tree, bool);
4778 extern void finish_member_declaration (tree);
4779 extern void qualified_name_lookup_error (tree, tree, tree,
4781 extern void check_template_keyword (tree);
4782 extern tree finish_id_expression (tree, tree, tree,
4785 bool, bool, bool, bool,
4788 extern tree finish_typeof (tree);
4789 extern tree finish_offsetof (tree);
4790 extern void finish_decl_cleanup (tree, tree);
4791 extern void finish_eh_cleanup (tree);
4792 extern void emit_associated_thunks (tree);
4793 extern void finish_mem_initializers (tree);
4794 extern tree check_template_template_default_arg (tree);
4795 extern void expand_or_defer_fn (tree);
4796 extern void check_accessibility_of_qualified_id (tree, tree, tree);
4797 extern tree finish_qualified_id_expr (tree, tree, bool, bool,
4799 extern void simplify_aggr_init_expr (tree *);
4800 extern void finalize_nrv (tree *, tree, tree);
4801 extern void note_decl_for_pch (tree);
4802 extern tree finish_omp_clauses (tree);
4803 extern void finish_omp_threadprivate (tree);
4804 extern tree begin_omp_structured_block (void);
4805 extern tree finish_omp_structured_block (tree);
4806 extern tree begin_omp_parallel (void);
4807 extern tree finish_omp_parallel (tree, tree);
4808 extern tree begin_omp_task (void);
4809 extern tree finish_omp_task (tree, tree);
4810 extern tree finish_omp_for (location_t, tree, tree,
4811 tree, tree, tree, tree, tree);
4812 extern void finish_omp_atomic (enum tree_code, tree, tree);
4813 extern void finish_omp_barrier (void);
4814 extern void finish_omp_flush (void);
4815 extern void finish_omp_taskwait (void);
4816 extern enum omp_clause_default_kind cxx_omp_predetermined_sharing (tree);
4817 extern tree cxx_omp_clause_default_ctor (tree, tree, tree);
4818 extern tree cxx_omp_clause_copy_ctor (tree, tree, tree);
4819 extern tree cxx_omp_clause_assign_op (tree, tree, tree);
4820 extern tree cxx_omp_clause_dtor (tree, tree);
4821 extern void cxx_omp_finish_clause (tree);
4822 extern bool cxx_omp_privatize_by_reference (const_tree);
4823 extern bool cxx_omp_create_clause_info (tree, tree, bool, bool, bool);
4824 extern tree baselink_for_fns (tree);
4825 extern void finish_static_assert (tree, tree, location_t,
4827 extern tree describable_type (tree);
4828 extern tree finish_decltype_type (tree, bool);
4829 extern tree finish_trait_expr (enum cp_trait_kind, tree, tree);
4832 extern void lang_check_failed (const char *, int,
4833 const char *) ATTRIBUTE_NORETURN;
4834 extern tree stabilize_expr (tree, tree *);
4835 extern void stabilize_call (tree, tree *);
4836 extern void stabilize_aggr_init (tree, tree *);
4837 extern bool stabilize_init (tree, tree *);
4838 extern tree add_stmt_to_compound (tree, tree);
4839 extern tree cxx_maybe_build_cleanup (tree);
4840 extern void init_tree (void);
4841 extern int pod_type_p (const_tree);
4842 extern bool class_tmpl_impl_spec_p (const_tree);
4843 extern int zero_init_p (const_tree);
4844 extern tree canonical_type_variant (tree);
4845 extern tree copy_binfo (tree, tree, tree,
4847 extern int member_p (const_tree);
4848 extern cp_lvalue_kind real_lvalue_p (tree);
4849 extern bool builtin_valid_in_constant_expr_p (const_tree);
4850 extern tree build_min (enum tree_code, tree, ...);
4851 extern tree build_min_nt (enum tree_code, ...);
4852 extern tree build_min_non_dep (enum tree_code, tree, ...);
4853 extern tree build_min_non_dep_call_list (tree, tree, tree);
4854 extern tree build_cplus_new (tree, tree);
4855 extern tree build_aggr_init_expr (tree, tree);
4856 extern tree get_target_expr (tree);
4857 extern tree build_cplus_array_type (tree, tree);
4858 extern tree build_array_of_n_type (tree, int);
4859 extern tree hash_tree_cons (tree, tree, tree);
4860 extern tree hash_tree_chain (tree, tree);
4861 extern tree build_qualified_name (tree, tree, tree, bool);
4862 extern int is_overloaded_fn (tree);
4863 extern tree get_first_fn (tree);
4864 extern tree ovl_cons (tree, tree);
4865 extern tree build_overload (tree, tree);
4866 extern const char *cxx_printable_name (tree, int);
4867 extern tree build_exception_variant (tree, tree);
4868 extern tree bind_template_template_parm (tree, tree);
4869 extern tree array_type_nelts_total (tree);
4870 extern tree array_type_nelts_top (tree);
4871 extern tree break_out_target_exprs (tree);
4872 extern tree get_type_decl (tree);
4873 extern tree decl_namespace_context (tree);
4874 extern bool decl_anon_ns_mem_p (const_tree);
4875 extern tree lvalue_type (tree);
4876 extern tree error_type (tree);
4877 extern int varargs_function_p (const_tree);
4878 extern bool really_overloaded_fn (tree);
4879 extern bool cp_tree_equal (tree, tree);
4880 extern tree no_linkage_check (tree, bool);
4881 extern void debug_binfo (tree);
4882 extern tree build_dummy_object (tree);
4883 extern tree maybe_dummy_object (tree, tree *);
4884 extern int is_dummy_object (const_tree);
4885 extern const struct attribute_spec cxx_attribute_table[];
4886 extern tree make_ptrmem_cst (tree, tree);
4887 extern tree cp_build_type_attribute_variant (tree, tree);
4888 extern tree cp_build_reference_type (tree, bool);
4889 extern tree cp_build_qualified_type_real (tree, int, tsubst_flags_t);
4890 #define cp_build_qualified_type(TYPE, QUALS) \
4891 cp_build_qualified_type_real ((TYPE), (QUALS), tf_warning_or_error)
4892 extern special_function_kind special_function_p (const_tree);
4893 extern int count_trees (tree);
4894 extern int char_type_p (tree);
4895 extern void verify_stmt_tree (tree);
4896 extern linkage_kind decl_linkage (tree);
4897 extern tree cp_walk_subtrees (tree*, int*, walk_tree_fn,
4898 void*, struct pointer_set_t*);
4899 #define cp_walk_tree(a,b,c,d) \
4900 walk_tree_1 (a, b, c, d, cp_walk_subtrees)
4901 #define cp_walk_tree_without_duplicates(a,b,c) \
4902 walk_tree_without_duplicates_1 (a, b, c, cp_walk_subtrees)
4903 extern tree fold_if_not_in_template (tree);
4904 extern tree rvalue (tree);
4905 extern tree convert_bitfield_to_declared_type (tree);
4906 extern tree cp_save_expr (tree);
4907 extern bool cast_valid_in_integral_constant_expression_p (tree);
4908 extern bool cxx_type_hash_eq (const_tree, const_tree);
4911 extern int string_conv_p (const_tree, const_tree, int);
4912 extern tree cp_truthvalue_conversion (tree);
4913 extern tree condition_conversion (tree);
4914 extern tree require_complete_type (tree);
4915 extern tree complete_type (tree);
4916 extern tree complete_type_or_else (tree, tree);
4917 extern int type_unknown_p (const_tree);
4918 extern bool comp_except_specs (const_tree, const_tree, bool);
4919 extern bool comptypes (tree, tree, int);
4920 extern bool compparms (const_tree, const_tree);
4921 extern int comp_cv_qualification (const_tree, const_tree);
4922 extern int comp_cv_qual_signature (tree, tree);
4923 extern tree cxx_sizeof_or_alignof_expr (tree, enum tree_code, bool);
4924 extern tree cxx_sizeof_or_alignof_type (tree, enum tree_code, bool);
4925 extern tree cxx_sizeof_nowarn (tree);
4926 extern tree is_bitfield_expr_with_lowered_type (const_tree);
4927 extern tree unlowered_expr_type (const_tree);
4928 extern tree decay_conversion (tree);
4929 extern tree build_class_member_access_expr (tree, tree, tree, bool,
4931 extern tree finish_class_member_access_expr (tree, tree, bool,
4933 extern tree build_x_indirect_ref (tree, const char *,
4935 extern tree cp_build_indirect_ref (tree, const char *,
4937 extern tree build_array_ref (tree, tree, location_t);
4938 extern tree get_member_function_from_ptrfunc (tree *, tree);
4939 extern tree cp_build_function_call (tree, tree, tsubst_flags_t);
4940 extern tree build_x_binary_op (enum tree_code, tree,
4941 enum tree_code, tree,
4942 enum tree_code, bool *,
4944 extern tree build_x_unary_op (enum tree_code, tree,
4946 extern tree cp_build_unary_op (enum tree_code, tree, int,
4948 extern tree unary_complex_lvalue (enum tree_code, tree);
4949 extern tree build_x_conditional_expr (tree, tree, tree,
4951 extern tree build_x_compound_expr_from_list (tree, const char *);
4952 extern tree build_x_compound_expr (tree, tree, tsubst_flags_t);
4953 extern tree build_compound_expr (tree, tree);
4954 extern tree cp_build_compound_expr (tree, tree, tsubst_flags_t);
4955 extern tree build_static_cast (tree, tree, tsubst_flags_t);
4956 extern tree build_reinterpret_cast (tree, tree, tsubst_flags_t);
4957 extern tree build_const_cast (tree, tree, tsubst_flags_t);
4958 extern tree build_c_cast (tree, tree);
4959 extern tree cp_build_c_cast (tree, tree, tsubst_flags_t);
4960 extern tree build_x_modify_expr (tree, enum tree_code, tree,
4962 extern tree cp_build_modify_expr (tree, enum tree_code, tree,
4964 extern tree convert_for_initialization (tree, tree, tree, int,
4965 const char *, tree, int,
4967 extern int comp_ptr_ttypes (tree, tree);
4968 extern bool comp_ptr_ttypes_const (tree, tree);
4969 extern int ptr_reasonably_similar (const_tree, const_tree);
4970 extern tree build_ptrmemfunc (tree, tree, int, bool);
4971 extern int cp_type_quals (const_tree);
4972 extern bool cp_type_readonly (const_tree);
4973 extern bool cp_has_mutable_p (const_tree);
4974 extern bool at_least_as_qualified_p (const_tree, const_tree);
4975 extern void cp_apply_type_quals_to_decl (int, tree);
4976 extern tree build_ptrmemfunc1 (tree, tree, tree);
4977 extern void expand_ptrmemfunc_cst (tree, tree *, tree *);
4978 extern tree type_after_usual_arithmetic_conversions (tree, tree);
4979 extern tree common_pointer_type (tree, tree);
4980 extern tree composite_pointer_type (tree, tree, tree, tree,
4981 const char*, tsubst_flags_t);
4982 extern tree merge_types (tree, tree);
4983 extern tree check_return_expr (tree, bool *);
4984 extern tree cp_build_binary_op (location_t,
4985 enum tree_code, tree, tree,
4987 #define cxx_sizeof(T) cxx_sizeof_or_alignof_type (T, SIZEOF_EXPR, true)
4988 extern tree build_ptrmemfunc_access_expr (tree, tree);
4989 extern tree build_address (tree);
4990 extern tree build_nop (tree, tree);
4991 extern tree non_reference (tree);
4992 extern tree lookup_anon_field (tree, tree);
4993 extern bool invalid_nonstatic_memfn_p (const_tree, tsubst_flags_t);
4994 extern tree convert_member_func_to_ptr (tree, tree);
4995 extern tree convert_ptrmem (tree, tree, bool, bool);
4996 extern int lvalue_or_else (tree, enum lvalue_use,
4998 extern int lvalue_p (tree);
5001 extern void require_complete_eh_spec_types (tree, tree);
5002 extern void cxx_incomplete_type_diagnostic (const_tree, const_tree, diagnostic_t);
5003 #undef cxx_incomplete_type_error
5004 extern void cxx_incomplete_type_error (const_tree, const_tree);
5005 #define cxx_incomplete_type_error(V,T) \
5006 (cxx_incomplete_type_diagnostic ((V), (T), DK_ERROR))
5007 extern tree error_not_base_type (tree, tree);
5008 extern tree binfo_or_else (tree, tree);
5009 extern void readonly_error (tree, const char *);
5010 extern void complete_type_check_abstract (tree);
5011 extern int abstract_virtuals_error (tree, tree);
5013 extern tree store_init_value (tree, tree);
5014 extern void check_narrowing (tree, tree);
5015 extern tree digest_init (tree, tree);
5016 extern tree build_scoped_ref (tree, tree, tree *);
5017 extern tree build_x_arrow (tree);
5018 extern tree build_m_component_ref (tree, tree);
5019 extern tree build_functional_cast (tree, tree, tsubst_flags_t);
5020 extern tree add_exception_specifier (tree, tree, int);
5021 extern tree merge_exception_specifiers (tree, tree);
5024 extern void init_mangle (void);
5025 extern void mangle_decl (tree);
5026 extern const char *mangle_type_string (tree);
5027 extern tree mangle_typeinfo_for_type (tree);
5028 extern tree mangle_typeinfo_string_for_type (tree);
5029 extern tree mangle_vtbl_for_type (tree);
5030 extern tree mangle_vtt_for_type (tree);
5031 extern tree mangle_ctor_vtbl_for_type (tree, tree);
5032 extern tree mangle_thunk (tree, int, tree, tree);
5033 extern tree mangle_conv_op_name_for_type (tree);
5034 extern tree mangle_guard_variable (tree);
5035 extern tree mangle_ref_init_variable (tree);
5036 extern tree mangle_compound_literal (void);
5039 extern bool cp_dump_tree (void *, tree);
5041 /* In cp/cp-objcp-common.c. */
5043 extern alias_set_type cxx_get_alias_set (tree);
5044 extern bool cxx_warn_unused_global_decl (const_tree);
5045 extern tree cp_expr_size (const_tree);
5046 extern size_t cp_tree_size (enum tree_code);
5047 extern bool cp_var_mod_type_p (tree, tree);
5048 extern void cxx_initialize_diagnostics (struct diagnostic_context *);
5049 extern int cxx_types_compatible_p (tree, tree);
5050 extern void init_shadowed_var_for_decl (void);
5051 extern tree cxx_staticp (tree);
5053 /* in cp-gimplify.c */
5054 extern int cp_gimplify_expr (tree *, gimple_seq *,
5056 extern void cp_genericize (tree);
5060 #endif /* ! GCC_CP_TREE_H */