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 Free Software Foundation, Inc.
4 Contributed by Michael Tiemann (tiemann@cygnus.com)
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
13 GCC is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING. If not, write to
20 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
21 Boston, MA 02110-1301, USA. */
29 #include "splay-tree.h"
33 #include "name-lookup.h"
34 struct diagnostic_context;
36 /* Usage of TREE_LANG_FLAG_?:
37 0: IDENTIFIER_MARKED (IDENTIFIER_NODEs)
38 NEW_EXPR_USE_GLOBAL (in NEW_EXPR).
39 DELETE_EXPR_USE_GLOBAL (in DELETE_EXPR).
40 COMPOUND_EXPR_OVERLOADED (in COMPOUND_EXPR).
41 TREE_INDIRECT_USING (in NAMESPACE_DECL).
42 CLEANUP_P (in TRY_BLOCK)
43 AGGR_INIT_VIA_CTOR_P (in AGGR_INIT_EXPR)
44 PTRMEM_OK_P (in ADDR_EXPR, OFFSET_REF)
45 PAREN_STRING_LITERAL (in STRING_CST)
46 DECL_PRETTY_FUNCTION_P (in VAR_DECL)
47 KOENIG_LOOKUP_P (in CALL_EXPR)
48 STATEMENT_LIST_NO_SCOPE (in STATEMENT_LIST).
49 EXPR_STMT_STMT_EXPR_RESULT (in EXPR_STMT)
50 STMT_EXPR_NO_SCOPE (in STMT_EXPR)
51 BIND_EXPR_TRY_BLOCK (in BIND_EXPR)
52 TYPENAME_IS_ENUM_P (in TYPENAME_TYPE)
53 REFERENCE_REF_P (in INDIRECT_EXPR)
54 QUALIFIED_NAME_IS_TEMPLATE (in SCOPE_REF)
55 OMP_ATOMIC_DEPENDENT_P (in OMP_ATOMIC)
56 OMP_FOR_GIMPLIFYING_P (in OMP_FOR)
57 BASELINK_QUALIFIED_P (in BASELINK)
58 TARGET_EXPR_IMPLICIT_P (in TARGET_EXPR)
59 TEMPLATE_PARM_PARAMETER_PACK (in TEMPLATE_PARM_INDEX)
60 1: IDENTIFIER_VIRTUAL_P (in IDENTIFIER_NODE)
61 TI_PENDING_TEMPLATE_FLAG.
62 TEMPLATE_PARMS_FOR_INLINE.
63 DELETE_EXPR_USE_VEC (in DELETE_EXPR).
64 (TREE_CALLS_NEW) (in _EXPR or _REF) (commented-out).
65 ICS_ELLIPSIS_FLAG (in _CONV)
66 DECL_INITIALIZED_P (in VAR_DECL)
67 TYPENAME_IS_CLASS_P (in TYPENAME_TYPE)
68 STMT_IS_FULL_EXPR_P (in _STMT)
69 2: IDENTIFIER_OPNAME_P (in IDENTIFIER_NODE)
70 ICS_THIS_FLAG (in _CONV)
71 DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (in VAR_DECL)
72 STATEMENT_LIST_TRY_BLOCK (in STATEMENT_LIST)
73 3: (TREE_REFERENCE_EXPR) (in NON_LVALUE_EXPR) (commented-out).
74 ICS_BAD_FLAG (in _CONV)
75 FN_TRY_BLOCK_P (in TRY_BLOCK)
76 IDENTIFIER_CTOR_OR_DTOR_P (in IDENTIFIER_NODE)
77 BIND_EXPR_BODY_BLOCK (in BIND_EXPR)
78 DECL_NON_TRIVIALLY_INITIALIZED_P (in VAR_DECL)
79 4: TREE_HAS_CONSTRUCTOR (in INDIRECT_REF, SAVE_EXPR, CONSTRUCTOR,
81 IDENTIFIER_TYPENAME_P (in IDENTIFIER_NODE)
82 DECL_TINFO_P (in VAR_DECL)
83 5: C_IS_RESERVED_WORD (in IDENTIFIER_NODE)
84 DECL_VTABLE_OR_VTT_P (in VAR_DECL)
85 6: IDENTIFIER_REPO_CHOSEN (in IDENTIFIER_NODE)
86 DECL_CONSTRUCTION_VTABLE_P (in VAR_DECL)
87 TYPE_MARKED_P (in _TYPE)
89 Usage of TYPE_LANG_FLAG_?:
91 1: TYPE_HAS_CONSTRUCTOR.
94 4: TYPE_HAS_NONTRIVIAL_DESTRUCTOR
96 6: TYPE_DEPENDENT_P_VALID
98 Usage of DECL_LANG_FLAG_?:
99 0: DECL_ERROR_REPORTED (in VAR_DECL).
100 DECL_TEMPLATE_PARM_P (in PARM_DECL, CONST_DECL, TYPE_DECL, or TEMPLATE_DECL)
101 DECL_LOCAL_FUNCTION_P (in FUNCTION_DECL)
102 DECL_MUTABLE_P (in FIELD_DECL)
103 DECL_DEPENDENT_P (in USING_DECL)
104 1: C_TYPEDEF_EXPLICITLY_SIGNED (in TYPE_DECL).
105 DECL_TEMPLATE_INSTANTIATED (in a VAR_DECL or a FUNCTION_DECL)
106 DECL_MEMBER_TEMPLATE_P (in TEMPLATE_DECL)
107 FUNCTION_PARAMETER_PACK_P (in PARM_DECL)
108 2: DECL_THIS_EXTERN (in VAR_DECL or FUNCTION_DECL).
109 DECL_IMPLICIT_TYPEDEF_P (in a TYPE_DECL)
111 4: DECL_C_BIT_FIELD (in a FIELD_DECL)
112 DECL_VAR_MARKED_P (in a VAR_DECL)
113 DECL_SELF_REFERENCE_P (in a TYPE_DECL)
114 DECL_INVALID_OVERRIDER_P (in a FUNCTION_DECL)
115 5: DECL_INTERFACE_KNOWN.
116 6: DECL_THIS_STATIC (in VAR_DECL or FUNCTION_DECL).
117 DECL_FIELD_IS_BASE (in FIELD_DECL)
118 7: DECL_DEAD_FOR_LOCAL (in VAR_DECL).
119 DECL_THUNK_P (in a member FUNCTION_DECL)
121 Usage of language-independent fields in a language-dependent manner:
124 This field is used by TYPENAME_TYPEs, TEMPLATE_TYPE_PARMs, and so
125 forth as a substitute for the mark bits provided in `lang_type'.
126 At present, only the six low-order bits are used.
129 For an ENUMERAL_TYPE, this is ENUM_TEMPLATE_INFO.
130 For a FUNCTION_TYPE or METHOD_TYPE, this is TYPE_RAISES_EXCEPTIONS
133 For a binfo, this is a TREE_LIST. There is an entry for each
134 virtual function declared either in BINFO or its direct and
135 indirect primary bases.
137 The BV_DELTA of each node gives the amount by which to adjust the
138 `this' pointer when calling the function. If the method is an
139 overridden version of a base class method, then it is assumed
140 that, prior to adjustment, the this pointer points to an object
143 The BV_VCALL_INDEX of each node, if non-NULL, gives the vtable
144 index of the vcall offset for this entry.
146 The BV_FN is the declaration for the virtual function itself.
149 This is an expression with POINTER_TYPE that gives the value
150 to which the vptr should be initialized. Use get_vtbl_decl_for_binfo
151 to extract the VAR_DECL for the complete vtable.
154 For a VAR_DECL this is DECL_ANON_UNION_ELEMS.
157 This field is NULL for a non-virtual function. For a virtual
158 function, it is eventually set to an INTEGER_CST indicating the
159 index in the vtable at which this function can be found. When
160 a virtual function is declared, but before it is known what
161 function is overridden, this field is the error_mark_node.
163 Temporarily, it may be set to a TREE_LIST whose TREE_VALUE is
164 the virtual function this one overrides, and whose TREE_CHAIN is
165 the old DECL_VINDEX. */
167 /* Language-specific tree checkers. */
169 #define VAR_OR_FUNCTION_DECL_CHECK(NODE) \
170 TREE_CHECK2(NODE,VAR_DECL,FUNCTION_DECL)
172 #define VAR_FUNCTION_OR_PARM_DECL_CHECK(NODE) \
173 TREE_CHECK3(NODE,VAR_DECL,FUNCTION_DECL,PARM_DECL)
175 #define VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK(NODE) \
176 TREE_CHECK4(NODE,VAR_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL)
178 #define BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK(NODE) \
179 TREE_CHECK(NODE,BOUND_TEMPLATE_TEMPLATE_PARM)
181 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
182 #define NON_THUNK_FUNCTION_CHECK(NODE) __extension__ \
183 ({ const tree __t = (NODE); \
184 if (TREE_CODE (__t) != FUNCTION_DECL && \
185 TREE_CODE (__t) != TEMPLATE_DECL && __t->decl_common.lang_specific \
186 && __t->decl_common.lang_specific->decl_flags.thunk_p) \
187 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, 0); \
189 #define THUNK_FUNCTION_CHECK(NODE) __extension__ \
190 ({ const tree __t = (NODE); \
191 if (TREE_CODE (__t) != FUNCTION_DECL || !__t->decl_common.lang_specific \
192 || !__t->decl_common.lang_specific->decl_flags.thunk_p) \
193 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, 0); \
196 #define NON_THUNK_FUNCTION_CHECK(NODE) (NODE)
197 #define THUNK_FUNCTION_CHECK(NODE) (NODE)
200 /* Language-dependent contents of an identifier. */
202 struct lang_identifier GTY(())
204 struct c_common_identifier c_common;
205 cxx_binding *namespace_bindings;
206 cxx_binding *bindings;
207 tree class_template_info;
211 /* In an IDENTIFIER_NODE, nonzero if this identifier is actually a
212 keyword. C_RID_CODE (node) is then the RID_* value of the keyword,
213 and C_RID_YYCODE is the token number wanted by Yacc. */
215 #define C_IS_RESERVED_WORD(ID) TREE_LANG_FLAG_5 (ID)
217 #define LANG_IDENTIFIER_CAST(NODE) \
218 ((struct lang_identifier*)IDENTIFIER_NODE_CHECK (NODE))
220 struct template_parm_index_s GTY(())
222 struct tree_common common;
228 typedef struct template_parm_index_s template_parm_index;
230 struct tinst_level_s GTY(())
232 struct tree_common common;
235 int in_system_header_p;
237 typedef struct tinst_level_s * tinst_level_t;
239 struct ptrmem_cst GTY(())
241 struct tree_common common;
242 /* This isn't used, but the middle-end expects all constants to have
247 typedef struct ptrmem_cst * ptrmem_cst_t;
249 #define IDENTIFIER_GLOBAL_VALUE(NODE) \
250 namespace_binding ((NODE), global_namespace)
251 #define SET_IDENTIFIER_GLOBAL_VALUE(NODE, VAL) \
252 set_namespace_binding ((NODE), global_namespace, (VAL))
253 #define IDENTIFIER_NAMESPACE_VALUE(NODE) \
254 namespace_binding ((NODE), current_namespace)
255 #define SET_IDENTIFIER_NAMESPACE_VALUE(NODE, VAL) \
256 set_namespace_binding ((NODE), current_namespace, (VAL))
258 #define CLEANUP_P(NODE) TREE_LANG_FLAG_0 (TRY_BLOCK_CHECK (NODE))
260 #define BIND_EXPR_TRY_BLOCK(NODE) \
261 TREE_LANG_FLAG_0 (BIND_EXPR_CHECK (NODE))
263 /* Used to mark the block around the member initializers and cleanups. */
264 #define BIND_EXPR_BODY_BLOCK(NODE) \
265 TREE_LANG_FLAG_3 (BIND_EXPR_CHECK (NODE))
266 #define FUNCTION_NEEDS_BODY_BLOCK(NODE) \
267 (DECL_CONSTRUCTOR_P (NODE) || DECL_DESTRUCTOR_P (NODE))
269 #define STATEMENT_LIST_NO_SCOPE(NODE) \
270 TREE_LANG_FLAG_0 (STATEMENT_LIST_CHECK (NODE))
271 #define STATEMENT_LIST_TRY_BLOCK(NODE) \
272 TREE_LANG_FLAG_2 (STATEMENT_LIST_CHECK (NODE))
274 /* Nonzero if this statement should be considered a full-expression,
275 i.e., if temporaries created during this statement should have
276 their destructors run at the end of this statement. */
277 #define STMT_IS_FULL_EXPR_P(NODE) TREE_LANG_FLAG_1 ((NODE))
279 /* Marks the result of a statement expression. */
280 #define EXPR_STMT_STMT_EXPR_RESULT(NODE) \
281 TREE_LANG_FLAG_0 (EXPR_STMT_CHECK (NODE))
283 /* Nonzero if this statement-expression does not have an associated scope. */
284 #define STMT_EXPR_NO_SCOPE(NODE) \
285 TREE_LANG_FLAG_0 (STMT_EXPR_CHECK (NODE))
287 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, in the usual
289 #define same_type_p(TYPE1, TYPE2) \
290 comptypes ((TYPE1), (TYPE2), COMPARE_STRICT)
292 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, ignoring
293 top-level qualifiers. */
294 #define same_type_ignoring_top_level_qualifiers_p(TYPE1, TYPE2) \
295 same_type_p (TYPE_MAIN_VARIANT (TYPE1), TYPE_MAIN_VARIANT (TYPE2))
297 /* Nonzero if we are presently building a statement tree, rather
298 than expanding each statement as we encounter it. */
299 #define building_stmt_tree() (cur_stmt_list != NULL_TREE)
301 /* Returns nonzero iff NODE is a declaration for the global function
303 #define DECL_MAIN_P(NODE) \
304 (DECL_EXTERN_C_FUNCTION_P (NODE) \
305 && DECL_NAME (NODE) != NULL_TREE \
306 && MAIN_NAME_P (DECL_NAME (NODE)))
308 /* The overloaded FUNCTION_DECL. */
309 #define OVL_FUNCTION(NODE) \
310 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->function)
311 #define OVL_CHAIN(NODE) TREE_CHAIN (NODE)
312 /* Polymorphic access to FUNCTION and CHAIN. */
313 #define OVL_CURRENT(NODE) \
314 ((TREE_CODE (NODE) == OVERLOAD) ? OVL_FUNCTION (NODE) : (NODE))
315 #define OVL_NEXT(NODE) \
316 ((TREE_CODE (NODE) == OVERLOAD) ? TREE_CHAIN (NODE) : NULL_TREE)
317 /* If set, this was imported in a using declaration.
318 This is not to confuse with being used somewhere, which
319 is not important for this node. */
320 #define OVL_USED(NODE) TREE_USED (NODE)
322 struct tree_overload GTY(())
324 struct tree_common common;
328 /* Returns true iff NODE is a BASELINK. */
329 #define BASELINK_P(NODE) \
330 (TREE_CODE (NODE) == BASELINK)
331 /* The BINFO indicating the base from which the BASELINK_FUNCTIONS came. */
332 #define BASELINK_BINFO(NODE) \
333 (((struct tree_baselink*) BASELINK_CHECK (NODE))->binfo)
334 /* The functions referred to by the BASELINK; either a FUNCTION_DECL,
335 a TEMPLATE_DECL, an OVERLOAD, or a TEMPLATE_ID_EXPR. */
336 #define BASELINK_FUNCTIONS(NODE) \
337 (((struct tree_baselink*) BASELINK_CHECK (NODE))->functions)
338 /* The BINFO in which the search for the functions indicated by this baselink
339 began. This base is used to determine the accessibility of functions
340 selected by overload resolution. */
341 #define BASELINK_ACCESS_BINFO(NODE) \
342 (((struct tree_baselink*) BASELINK_CHECK (NODE))->access_binfo)
343 /* For a type-conversion operator, the BASELINK_OPTYPE indicates the type
344 to which the conversion should occur. This value is important if
345 the BASELINK_FUNCTIONS include a template conversion operator --
346 the BASELINK_OPTYPE can be used to determine what type the user
348 #define BASELINK_OPTYPE(NODE) \
349 (TREE_CHAIN (BASELINK_CHECK (NODE)))
350 /* Nonzero if this baselink was from a qualified lookup. */
351 #define BASELINK_QUALIFIED_P(NODE) \
352 TREE_LANG_FLAG_0 (BASELINK_CHECK (NODE))
354 struct tree_baselink GTY(())
356 struct tree_common common;
362 /* The different kinds of ids that we encounter. */
364 typedef enum cp_id_kind
366 /* Not an id at all. */
368 /* An unqualified-id that is not a template-id. */
369 CP_ID_KIND_UNQUALIFIED,
370 /* An unqualified-id that is a dependent name. */
371 CP_ID_KIND_UNQUALIFIED_DEPENDENT,
372 /* An unqualified template-id. */
373 CP_ID_KIND_TEMPLATE_ID,
374 /* A qualified-id. */
378 /* Macros for access to language-specific slots in an identifier. */
380 #define IDENTIFIER_NAMESPACE_BINDINGS(NODE) \
381 (LANG_IDENTIFIER_CAST (NODE)->namespace_bindings)
382 #define IDENTIFIER_TEMPLATE(NODE) \
383 (LANG_IDENTIFIER_CAST (NODE)->class_template_info)
385 /* The IDENTIFIER_BINDING is the innermost cxx_binding for the
386 identifier. It's PREVIOUS is the next outermost binding. Each
387 VALUE field is a DECL for the associated declaration. Thus,
388 name lookup consists simply of pulling off the node at the front
389 of the list (modulo oddities for looking up the names of types,
390 and such.) You can use SCOPE field to determine the scope
391 that bound the name. */
392 #define IDENTIFIER_BINDING(NODE) \
393 (LANG_IDENTIFIER_CAST (NODE)->bindings)
395 /* TREE_TYPE only indicates on local and class scope the current
396 type. For namespace scope, the presence of a type in any namespace
397 is indicated with global_type_node, and the real type behind must
398 be found through lookup. */
399 #define IDENTIFIER_TYPE_VALUE(NODE) identifier_type_value (NODE)
400 #define REAL_IDENTIFIER_TYPE_VALUE(NODE) TREE_TYPE (NODE)
401 #define SET_IDENTIFIER_TYPE_VALUE(NODE,TYPE) (TREE_TYPE (NODE) = (TYPE))
402 #define IDENTIFIER_HAS_TYPE_VALUE(NODE) (IDENTIFIER_TYPE_VALUE (NODE) ? 1 : 0)
404 #define IDENTIFIER_LABEL_VALUE(NODE) \
405 (LANG_IDENTIFIER_CAST (NODE)->label_value)
406 #define SET_IDENTIFIER_LABEL_VALUE(NODE, VALUE) \
407 IDENTIFIER_LABEL_VALUE (NODE) = (VALUE)
409 /* Nonzero if this identifier is used as a virtual function name somewhere
410 (optimizes searches). */
411 #define IDENTIFIER_VIRTUAL_P(NODE) TREE_LANG_FLAG_1 (NODE)
413 /* Nonzero if this identifier is the prefix for a mangled C++ operator
415 #define IDENTIFIER_OPNAME_P(NODE) TREE_LANG_FLAG_2 (NODE)
417 /* Nonzero if this identifier is the name of a type-conversion
419 #define IDENTIFIER_TYPENAME_P(NODE) \
420 TREE_LANG_FLAG_4 (NODE)
422 /* Nonzero if this identifier is the name of a constructor or
424 #define IDENTIFIER_CTOR_OR_DTOR_P(NODE) \
425 TREE_LANG_FLAG_3 (NODE)
427 /* True iff NAME is the DECL_ASSEMBLER_NAME for an entity with vague
428 linkage which the prelinker has assigned to this translation
430 #define IDENTIFIER_REPO_CHOSEN(NAME) \
431 (TREE_LANG_FLAG_6 (NAME))
433 /* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */
434 #define C_TYPE_FIELDS_READONLY(TYPE) \
435 (LANG_TYPE_CLASS_CHECK (TYPE)->fields_readonly)
437 /* The tokens stored in the default argument. */
439 #define DEFARG_TOKENS(NODE) \
440 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->tokens)
441 #define DEFARG_INSTANTIATIONS(NODE) \
442 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->instantiations)
444 struct tree_default_arg GTY (())
446 struct tree_common common;
447 struct cp_token_cache *tokens;
448 VEC(tree,gc) *instantiations;
451 /* The condition associated with the static assertion. This must be
452 an integral constant expression. */
453 #define STATIC_ASSERT_CONDITION(NODE) \
454 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->condition)
456 /* The message associated with the static assertion. This must be a
457 string constant, which will be emitted as an error message when the
458 static assert condition is false. */
459 #define STATIC_ASSERT_MESSAGE(NODE) \
460 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->message)
462 /* Source location information for a static assertion. */
463 #define STATIC_ASSERT_SOURCE_LOCATION(NODE) \
464 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->location)
466 struct tree_static_assert GTY (())
468 struct tree_common common;
474 struct tree_argument_pack_select GTY (())
476 struct tree_common common;
481 /* The different kinds of traits that we encounter. */
483 typedef enum cp_trait_kind
485 CPTK_HAS_NOTHROW_ASSIGN,
486 CPTK_HAS_NOTHROW_CONSTRUCTOR,
487 CPTK_HAS_NOTHROW_COPY,
488 CPTK_HAS_TRIVIAL_ASSIGN,
489 CPTK_HAS_TRIVIAL_CONSTRUCTOR,
490 CPTK_HAS_TRIVIAL_COPY,
491 CPTK_HAS_TRIVIAL_DESTRUCTOR,
492 CPTK_HAS_VIRTUAL_DESTRUCTOR,
496 CPTK_IS_CONVERTIBLE_TO,
504 /* The types that we are processing. */
505 #define TRAIT_EXPR_TYPE1(NODE) \
506 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type1)
508 #define TRAIT_EXPR_TYPE2(NODE) \
509 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type2)
511 /* The specific trait that we are processing. */
512 #define TRAIT_EXPR_KIND(NODE) \
513 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->kind)
515 struct tree_trait_expr GTY (())
517 struct tree_common common;
520 enum cp_trait_kind kind;
523 enum cp_tree_node_structure_enum {
535 TS_CP_ARGUMENT_PACK_SELECT,
540 /* The resulting tree type. */
541 union lang_tree_node GTY((desc ("cp_tree_node_structure (&%h)"),
542 chain_next ("(GIMPLE_STMT_P (&%h.generic) ? (union lang_tree_node *) 0 : (union lang_tree_node *)TREE_CHAIN (&%h.generic))")))
544 union tree_node GTY ((tag ("TS_CP_GENERIC"),
545 desc ("tree_node_structure (&%h)"))) generic;
546 struct template_parm_index_s GTY ((tag ("TS_CP_TPI"))) tpi;
547 struct tinst_level_s GTY ((tag ("TS_CP_TINST_LEVEL"))) tinst_level;
548 struct ptrmem_cst GTY ((tag ("TS_CP_PTRMEM"))) ptrmem;
549 struct tree_overload GTY ((tag ("TS_CP_OVERLOAD"))) overload;
550 struct tree_baselink GTY ((tag ("TS_CP_BASELINK"))) baselink;
551 struct tree_default_arg GTY ((tag ("TS_CP_DEFAULT_ARG"))) default_arg;
552 struct lang_identifier GTY ((tag ("TS_CP_IDENTIFIER"))) identifier;
553 struct tree_static_assert GTY ((tag ("TS_CP_STATIC_ASSERT")))
555 struct tree_argument_pack_select GTY ((tag ("TS_CP_ARGUMENT_PACK_SELECT")))
556 argument_pack_select;
557 struct tree_trait_expr GTY ((tag ("TS_CP_TRAIT_EXPR")))
565 CPTI_JAVA_SHORT_TYPE,
568 CPTI_JAVA_FLOAT_TYPE,
569 CPTI_JAVA_DOUBLE_TYPE,
571 CPTI_JAVA_BOOLEAN_TYPE,
574 CPTI_VTABLE_ENTRY_TYPE,
576 CPTI_VTABLE_INDEX_TYPE,
586 CPTI_CONST_TYPE_INFO_TYPE,
587 CPTI_TYPE_INFO_PTR_TYPE,
589 CPTI_GLOBAL_DELETE_FNDECL,
592 CPTI_CTOR_IDENTIFIER,
593 CPTI_COMPLETE_CTOR_IDENTIFIER,
594 CPTI_BASE_CTOR_IDENTIFIER,
595 CPTI_DTOR_IDENTIFIER,
596 CPTI_COMPLETE_DTOR_IDENTIFIER,
597 CPTI_BASE_DTOR_IDENTIFIER,
598 CPTI_DELETING_DTOR_IDENTIFIER,
599 CPTI_DELTA_IDENTIFIER,
600 CPTI_IN_CHARGE_IDENTIFIER,
601 CPTI_VTT_PARM_IDENTIFIER,
602 CPTI_NELTS_IDENTIFIER,
603 CPTI_THIS_IDENTIFIER,
605 CPTI_VPTR_IDENTIFIER,
609 CPTI_LANG_NAME_CPLUSPLUS,
612 CPTI_EMPTY_EXCEPT_SPEC,
615 CPTI_CALL_UNEXPECTED,
625 extern GTY(()) tree cp_global_trees[CPTI_MAX];
627 #define java_byte_type_node cp_global_trees[CPTI_JAVA_BYTE_TYPE]
628 #define java_short_type_node cp_global_trees[CPTI_JAVA_SHORT_TYPE]
629 #define java_int_type_node cp_global_trees[CPTI_JAVA_INT_TYPE]
630 #define java_long_type_node cp_global_trees[CPTI_JAVA_LONG_TYPE]
631 #define java_float_type_node cp_global_trees[CPTI_JAVA_FLOAT_TYPE]
632 #define java_double_type_node cp_global_trees[CPTI_JAVA_DOUBLE_TYPE]
633 #define java_char_type_node cp_global_trees[CPTI_JAVA_CHAR_TYPE]
634 #define java_boolean_type_node cp_global_trees[CPTI_JAVA_BOOLEAN_TYPE]
636 #define wchar_decl_node cp_global_trees[CPTI_WCHAR_DECL]
637 #define vtable_entry_type cp_global_trees[CPTI_VTABLE_ENTRY_TYPE]
638 /* The type used to represent an offset by which to adjust the `this'
639 pointer in pointer-to-member types. */
640 #define delta_type_node cp_global_trees[CPTI_DELTA_TYPE]
641 /* The type used to represent an index into the vtable. */
642 #define vtable_index_type cp_global_trees[CPTI_VTABLE_INDEX_TYPE]
644 #define class_type_node cp_global_trees[CPTI_CLASS_TYPE]
645 #define unknown_type_node cp_global_trees[CPTI_UNKNOWN_TYPE]
646 #define vtbl_type_node cp_global_trees[CPTI_VTBL_TYPE]
647 #define vtbl_ptr_type_node cp_global_trees[CPTI_VTBL_PTR_TYPE]
648 #define std_node cp_global_trees[CPTI_STD]
649 #define abi_node cp_global_trees[CPTI_ABI]
650 #define const_type_info_type_node cp_global_trees[CPTI_CONST_TYPE_INFO_TYPE]
651 #define type_info_ptr_type cp_global_trees[CPTI_TYPE_INFO_PTR_TYPE]
652 #define abort_fndecl cp_global_trees[CPTI_ABORT_FNDECL]
653 #define global_delete_fndecl cp_global_trees[CPTI_GLOBAL_DELETE_FNDECL]
654 #define current_aggr cp_global_trees[CPTI_AGGR_TAG]
656 /* We cache these tree nodes so as to call get_identifier less
659 /* The name of a constructor that takes an in-charge parameter to
660 decide whether or not to construct virtual base classes. */
661 #define ctor_identifier cp_global_trees[CPTI_CTOR_IDENTIFIER]
662 /* The name of a constructor that constructs virtual base classes. */
663 #define complete_ctor_identifier cp_global_trees[CPTI_COMPLETE_CTOR_IDENTIFIER]
664 /* The name of a constructor that does not construct virtual base classes. */
665 #define base_ctor_identifier cp_global_trees[CPTI_BASE_CTOR_IDENTIFIER]
666 /* The name of a destructor that takes an in-charge parameter to
667 decide whether or not to destroy virtual base classes and whether
668 or not to delete the object. */
669 #define dtor_identifier cp_global_trees[CPTI_DTOR_IDENTIFIER]
670 /* The name of a destructor that destroys virtual base classes. */
671 #define complete_dtor_identifier cp_global_trees[CPTI_COMPLETE_DTOR_IDENTIFIER]
672 /* The name of a destructor that does not destroy virtual base
674 #define base_dtor_identifier cp_global_trees[CPTI_BASE_DTOR_IDENTIFIER]
675 /* The name of a destructor that destroys virtual base classes, and
676 then deletes the entire object. */
677 #define deleting_dtor_identifier cp_global_trees[CPTI_DELETING_DTOR_IDENTIFIER]
678 #define delta_identifier cp_global_trees[CPTI_DELTA_IDENTIFIER]
679 #define in_charge_identifier cp_global_trees[CPTI_IN_CHARGE_IDENTIFIER]
680 /* The name of the parameter that contains a pointer to the VTT to use
681 for this subobject constructor or destructor. */
682 #define vtt_parm_identifier cp_global_trees[CPTI_VTT_PARM_IDENTIFIER]
683 #define nelts_identifier cp_global_trees[CPTI_NELTS_IDENTIFIER]
684 #define this_identifier cp_global_trees[CPTI_THIS_IDENTIFIER]
685 #define pfn_identifier cp_global_trees[CPTI_PFN_IDENTIFIER]
686 #define vptr_identifier cp_global_trees[CPTI_VPTR_IDENTIFIER]
687 /* The name of the std namespace. */
688 #define std_identifier cp_global_trees[CPTI_STD_IDENTIFIER]
689 #define lang_name_c cp_global_trees[CPTI_LANG_NAME_C]
690 #define lang_name_cplusplus cp_global_trees[CPTI_LANG_NAME_CPLUSPLUS]
691 #define lang_name_java cp_global_trees[CPTI_LANG_NAME_JAVA]
693 /* Exception specifier used for throw(). */
694 #define empty_except_spec cp_global_trees[CPTI_EMPTY_EXCEPT_SPEC]
696 /* If non-NULL, a POINTER_TYPE equivalent to (java::lang::Class*). */
697 #define jclass_node cp_global_trees[CPTI_JCLASS]
699 /* The declaration for `std::terminate'. */
700 #define terminate_node cp_global_trees[CPTI_TERMINATE]
702 /* The declaration for "__cxa_call_unexpected". */
703 #define call_unexpected_node cp_global_trees[CPTI_CALL_UNEXPECTED]
705 /* A pointer to `std::atexit'. */
706 #define atexit_node cp_global_trees[CPTI_ATEXIT]
708 /* A pointer to `__dso_handle'. */
709 #define dso_handle_node cp_global_trees[CPTI_DSO_HANDLE]
711 /* The declaration of the dynamic_cast runtime. */
712 #define dynamic_cast_node cp_global_trees[CPTI_DCAST]
714 /* The type of a destructor. */
715 #define cleanup_type cp_global_trees[CPTI_CLEANUP_TYPE]
717 /* The type of the vtt parameter passed to subobject constructors and
719 #define vtt_parm_type cp_global_trees[CPTI_VTT_PARM_TYPE]
721 /* A TREE_LIST of the dynamic classes whose vtables may have to be
722 emitted in this translation unit. */
724 #define keyed_classes cp_global_trees[CPTI_KEYED_CLASSES]
726 /* Node to indicate default access. This must be distinct from the
727 access nodes in tree.h. */
729 #define access_default_node null_node
733 struct saved_scope GTY(())
735 VEC(cxx_saved_binding,gc) *old_bindings;
740 tree access_specifier;
742 VEC(tree,gc) *lang_base;
745 struct cp_binding_level *x_previous_class_level;
748 int x_processing_template_decl;
749 int x_processing_specialization;
750 BOOL_BITFIELD x_processing_explicit_instantiation : 1;
751 BOOL_BITFIELD need_pop_function_context : 1;
752 BOOL_BITFIELD skip_evaluation : 1;
754 struct stmt_tree_s x_stmt_tree;
756 struct cp_binding_level *class_bindings;
757 struct cp_binding_level *bindings;
759 struct saved_scope *prev;
762 /* The current open namespace. */
764 #define current_namespace scope_chain->old_namespace
766 /* The stack for namespaces of current declarations. */
768 #define decl_namespace_list scope_chain->decl_ns_list
770 /* IDENTIFIER_NODE: name of current class */
772 #define current_class_name scope_chain->class_name
774 /* _TYPE: the type of the current class */
776 #define current_class_type scope_chain->class_type
778 /* When parsing a class definition, the access specifier most recently
779 given by the user, or, if no access specifier was given, the
780 default value appropriate for the kind of class (i.e., struct,
783 #define current_access_specifier scope_chain->access_specifier
785 /* Pointer to the top of the language name stack. */
787 #define current_lang_base scope_chain->lang_base
788 #define current_lang_name scope_chain->lang_name
790 /* When parsing a template declaration, a TREE_LIST representing the
791 active template parametesr. Each node in the list represents one
792 level of template parameters. The innermost level is first in the
793 list. The depth of each level is stored as an INTEGER_CST in the
794 TREE_PURPOSE of each node. The parameters for that level are
795 stored in the TREE_VALUE. */
797 #define current_template_parms scope_chain->template_parms
799 #define processing_template_decl scope_chain->x_processing_template_decl
800 #define processing_specialization scope_chain->x_processing_specialization
801 #define processing_explicit_instantiation scope_chain->x_processing_explicit_instantiation
803 /* The cached class binding level, from the most recently exited
804 class, or NULL if none. */
806 #define previous_class_level scope_chain->x_previous_class_level
808 /* A list of private types mentioned, for deferred access checking. */
810 extern GTY(()) struct saved_scope *scope_chain;
812 struct cxx_int_tree_map GTY(())
818 extern unsigned int cxx_int_tree_map_hash (const void *);
819 extern int cxx_int_tree_map_eq (const void *, const void *);
821 /* Global state pertinent to the current function. */
823 struct language_function GTY(())
825 struct c_language_function base;
828 tree x_current_class_ptr;
829 tree x_current_class_ref;
830 tree x_eh_spec_block;
831 tree x_in_charge_parm;
835 BOOL_BITFIELD returns_value : 1;
836 BOOL_BITFIELD returns_null : 1;
837 BOOL_BITFIELD returns_abnormally : 1;
838 BOOL_BITFIELD in_function_try_handler : 1;
839 BOOL_BITFIELD in_base_initializer : 1;
841 /* True if this function can throw an exception. */
842 BOOL_BITFIELD can_throw : 1;
844 htab_t GTY((param_is(struct named_label_entry))) x_named_labels;
845 struct cp_binding_level *bindings;
846 VEC(tree,gc) *x_local_names;
847 htab_t GTY((param_is (struct cxx_int_tree_map))) extern_decl_map;
850 /* The current C++-specific per-function global variables. */
852 #define cp_function_chain (cfun->language)
854 /* In a constructor destructor, the point at which all derived class
855 destroying/construction has been has been done. Ie. just before a
856 constructor returns, or before any base class destroying will be done
859 #define cdtor_label cp_function_chain->x_cdtor_label
861 /* When we're processing a member function, current_class_ptr is the
862 PARM_DECL for the `this' pointer. The current_class_ref is an
863 expression for `*this'. */
865 #define current_class_ptr \
866 (cfun ? cp_function_chain->x_current_class_ptr : NULL_TREE)
867 #define current_class_ref \
868 (cfun ? cp_function_chain->x_current_class_ref : NULL_TREE)
870 /* The EH_SPEC_BLOCK for the exception-specifiers for the current
873 #define current_eh_spec_block cp_function_chain->x_eh_spec_block
875 /* The `__in_chrg' parameter for the current function. Only used for
876 constructors and destructors. */
878 #define current_in_charge_parm cp_function_chain->x_in_charge_parm
880 /* The `__vtt_parm' parameter for the current function. Only used for
881 constructors and destructors. */
883 #define current_vtt_parm cp_function_chain->x_vtt_parm
885 /* Set to 0 at beginning of a function definition, set to 1 if
886 a return statement that specifies a return value is seen. */
888 #define current_function_returns_value cp_function_chain->returns_value
890 /* Set to 0 at beginning of a function definition, set to 1 if
891 a return statement with no argument is seen. */
893 #define current_function_returns_null cp_function_chain->returns_null
895 /* Set to 0 at beginning of a function definition, set to 1 if
896 a call to a noreturn function is seen. */
898 #define current_function_returns_abnormally \
899 cp_function_chain->returns_abnormally
901 /* Nonzero if we are processing a base initializer. Zero elsewhere. */
902 #define in_base_initializer cp_function_chain->in_base_initializer
904 #define in_function_try_handler cp_function_chain->in_function_try_handler
906 /* Expression always returned from function, or error_mark_node
907 otherwise, for use by the automatic named return value optimization. */
909 #define current_function_return_value \
910 (cp_function_chain->x_return_value)
912 /* True if NAME is the IDENTIFIER_NODE for an overloaded "operator
913 new" or "operator delete". */
914 #define NEW_DELETE_OPNAME_P(NAME) \
915 ((NAME) == ansi_opname (NEW_EXPR) \
916 || (NAME) == ansi_opname (VEC_NEW_EXPR) \
917 || (NAME) == ansi_opname (DELETE_EXPR) \
918 || (NAME) == ansi_opname (VEC_DELETE_EXPR))
920 #define ansi_opname(CODE) \
921 (operator_name_info[(int) (CODE)].identifier)
922 #define ansi_assopname(CODE) \
923 (assignment_operator_name_info[(int) (CODE)].identifier)
925 /* True if NODE is an erroneous expression. */
927 #define error_operand_p(NODE) \
928 ((NODE) == error_mark_node \
929 || ((NODE) && TREE_TYPE ((NODE)) == error_mark_node))
931 /* C++ language-specific tree codes. */
932 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) SYM,
933 enum cplus_tree_code {
934 CP_DUMMY_TREE_CODE = LAST_C_TREE_CODE,
935 #include "cp-tree.def"
940 /* TRUE if a tree code represents a statement. */
941 extern bool statement_code_p[MAX_TREE_CODES];
943 #define STATEMENT_CODE_P(CODE) statement_code_p[(int) (CODE)]
945 enum languages { lang_c, lang_cplusplus, lang_java };
947 /* Macros to make error reporting functions' lives easier. */
948 #define TYPE_IDENTIFIER(NODE) (DECL_NAME (TYPE_NAME (NODE)))
949 #define TYPE_LINKAGE_IDENTIFIER(NODE) \
950 (TYPE_IDENTIFIER (TYPE_MAIN_VARIANT (NODE)))
951 #define TYPE_NAME_STRING(NODE) (IDENTIFIER_POINTER (TYPE_IDENTIFIER (NODE)))
952 #define TYPE_NAME_LENGTH(NODE) (IDENTIFIER_LENGTH (TYPE_IDENTIFIER (NODE)))
954 /* Nonzero if NODE has no name for linkage purposes. */
955 #define TYPE_ANONYMOUS_P(NODE) \
956 (TAGGED_TYPE_P (NODE) && ANON_AGGRNAME_P (TYPE_LINKAGE_IDENTIFIER (NODE)))
958 /* The _DECL for this _TYPE. */
959 #define TYPE_MAIN_DECL(NODE) (TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE)))
961 /* Nonzero if T is a class (or struct or union) type. Also nonzero
962 for template type parameters, typename types, and instantiated
963 template template parameters. Despite its name,
964 this macro has nothing to do with the definition of aggregate given
965 in the standard. Think of this macro as MAYBE_CLASS_TYPE_P. Keep
966 these checks in ascending code order. */
967 #define IS_AGGR_TYPE(T) \
968 (TREE_CODE (T) == TEMPLATE_TYPE_PARM \
969 || TREE_CODE (T) == TYPENAME_TYPE \
970 || TREE_CODE (T) == TYPEOF_TYPE \
971 || TREE_CODE (T) == BOUND_TEMPLATE_TEMPLATE_PARM \
972 || TYPE_LANG_FLAG_5 (T))
974 /* Set IS_AGGR_TYPE for T to VAL. T must be a class, struct, or
976 #define SET_IS_AGGR_TYPE(T, VAL) \
977 (TYPE_LANG_FLAG_5 (T) = (VAL))
979 /* Nonzero if T is a class type. Zero for template type parameters,
980 typename types, and so forth. */
981 #define CLASS_TYPE_P(T) \
982 (IS_AGGR_TYPE_CODE (TREE_CODE (T)) && TYPE_LANG_FLAG_5 (T))
984 /* Nonzero if T is a class type but not an union. */
985 #define NON_UNION_CLASS_TYPE_P(T) \
986 (CLASS_TYPE_P (T) && TREE_CODE (T) != UNION_TYPE)
988 /* Keep these checks in ascending code order. */
989 #define IS_AGGR_TYPE_CODE(T) \
990 ((T) == RECORD_TYPE || (T) == UNION_TYPE)
991 #define TAGGED_TYPE_P(T) \
992 (CLASS_TYPE_P (T) || TREE_CODE (T) == ENUMERAL_TYPE)
993 #define IS_OVERLOAD_TYPE(T) TAGGED_TYPE_P (T)
995 /* True if this a "Java" type, defined in 'extern "Java"'. */
996 #define TYPE_FOR_JAVA(NODE) TYPE_LANG_FLAG_3 (NODE)
998 /* True if this type is dependent. This predicate is only valid if
999 TYPE_DEPENDENT_P_VALID is true. */
1000 #define TYPE_DEPENDENT_P(NODE) TYPE_LANG_FLAG_0 (NODE)
1002 /* True if dependent_type_p has been called for this type, with the
1003 result that TYPE_DEPENDENT_P is valid. */
1004 #define TYPE_DEPENDENT_P_VALID(NODE) TYPE_LANG_FLAG_6(NODE)
1006 /* Nonzero if this type is const-qualified. */
1007 #define CP_TYPE_CONST_P(NODE) \
1008 ((cp_type_quals (NODE) & TYPE_QUAL_CONST) != 0)
1010 /* Nonzero if this type is volatile-qualified. */
1011 #define CP_TYPE_VOLATILE_P(NODE) \
1012 ((cp_type_quals (NODE) & TYPE_QUAL_VOLATILE) != 0)
1014 /* Nonzero if this type is restrict-qualified. */
1015 #define CP_TYPE_RESTRICT_P(NODE) \
1016 ((cp_type_quals (NODE) & TYPE_QUAL_RESTRICT) != 0)
1018 /* Nonzero if this type is const-qualified, but not
1019 volatile-qualified. Other qualifiers are ignored. This macro is
1020 used to test whether or not it is OK to bind an rvalue to a
1022 #define CP_TYPE_CONST_NON_VOLATILE_P(NODE) \
1023 ((cp_type_quals (NODE) & (TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE)) \
1026 #define FUNCTION_ARG_CHAIN(NODE) \
1027 TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (NODE)))
1029 /* Given a FUNCTION_DECL, returns the first TREE_LIST out of TYPE_ARG_TYPES
1030 which refers to a user-written parameter. */
1031 #define FUNCTION_FIRST_USER_PARMTYPE(NODE) \
1032 skip_artificial_parms_for ((NODE), TYPE_ARG_TYPES (TREE_TYPE (NODE)))
1034 /* Similarly, but for DECL_ARGUMENTS. */
1035 #define FUNCTION_FIRST_USER_PARM(NODE) \
1036 skip_artificial_parms_for ((NODE), DECL_ARGUMENTS (NODE))
1038 #define PROMOTES_TO_AGGR_TYPE(NODE, CODE) \
1039 (((CODE) == TREE_CODE (NODE) \
1040 && IS_AGGR_TYPE (TREE_TYPE (NODE))) \
1041 || IS_AGGR_TYPE (NODE))
1043 /* Nonzero iff TYPE is derived from PARENT. Ignores accessibility and
1044 ambiguity issues. */
1045 #define DERIVED_FROM_P(PARENT, TYPE) \
1046 (lookup_base ((TYPE), (PARENT), ba_any, NULL) != NULL_TREE)
1047 /* Nonzero iff TYPE is uniquely derived from PARENT. Ignores
1049 #define UNIQUELY_DERIVED_FROM_P(PARENT, TYPE) \
1050 (lookup_base ((TYPE), (PARENT), ba_unique | ba_quiet, NULL) != NULL_TREE)
1051 /* Nonzero iff TYPE is publicly & uniquely derived from PARENT. */
1052 #define PUBLICLY_UNIQUELY_DERIVED_P(PARENT, TYPE) \
1053 (lookup_base ((TYPE), (PARENT), ba_ignore_scope | ba_check | ba_quiet, \
1056 /* Gives the visibility specification for a class type. */
1057 #define CLASSTYPE_VISIBILITY(TYPE) \
1058 DECL_VISIBILITY (TYPE_NAME (TYPE))
1059 #define CLASSTYPE_VISIBILITY_SPECIFIED(TYPE) \
1060 DECL_VISIBILITY_SPECIFIED (TYPE_NAME (TYPE))
1062 typedef struct tree_pair_s GTY (())
1067 typedef tree_pair_s *tree_pair_p;
1068 DEF_VEC_O (tree_pair_s);
1069 DEF_VEC_ALLOC_O (tree_pair_s,gc);
1071 /* This is a few header flags for 'struct lang_type'. Actually,
1072 all but the first are used only for lang_type_class; they
1073 are put in this structure to save space. */
1074 struct lang_type_header GTY(())
1076 BOOL_BITFIELD is_lang_type_class : 1;
1078 BOOL_BITFIELD has_type_conversion : 1;
1079 BOOL_BITFIELD has_init_ref : 1;
1080 BOOL_BITFIELD has_default_ctor : 1;
1081 BOOL_BITFIELD const_needs_init : 1;
1082 BOOL_BITFIELD ref_needs_init : 1;
1083 BOOL_BITFIELD has_const_assign_ref : 1;
1085 BOOL_BITFIELD spare : 1;
1088 /* This structure provides additional information above and beyond
1089 what is provide in the ordinary tree_type. In the past, we used it
1090 for the types of class types, template parameters types, typename
1091 types, and so forth. However, there can be many (tens to hundreds
1092 of thousands) of template parameter types in a compilation, and
1093 there's no need for this additional information in that case.
1094 Therefore, we now use this data structure only for class types.
1096 In the past, it was thought that there would be relatively few
1097 class types. However, in the presence of heavy use of templates,
1098 many (i.e., thousands) of classes can easily be generated.
1099 Therefore, we should endeavor to keep the size of this structure to
1101 struct lang_type_class GTY(())
1103 struct lang_type_header h;
1105 unsigned char align;
1107 unsigned has_mutable : 1;
1108 unsigned com_interface : 1;
1109 unsigned non_pod_class : 1;
1110 unsigned nearly_empty_p : 1;
1111 unsigned user_align : 1;
1112 unsigned has_assign_ref : 1;
1113 unsigned has_new : 1;
1114 unsigned has_array_new : 1;
1116 unsigned gets_delete : 2;
1117 unsigned interface_only : 1;
1118 unsigned interface_unknown : 1;
1119 unsigned contains_empty_class_p : 1;
1120 unsigned anon_aggr : 1;
1121 unsigned non_zero_init : 1;
1122 unsigned empty_p : 1;
1124 unsigned vec_new_uses_cookie : 1;
1125 unsigned declared_class : 1;
1126 unsigned diamond_shaped : 1;
1127 unsigned repeated_base : 1;
1128 unsigned being_defined : 1;
1129 unsigned java_interface : 1;
1130 unsigned debug_requested : 1;
1131 unsigned fields_readonly : 1;
1133 unsigned use_template : 2;
1134 unsigned ptrmemfunc_flag : 1;
1135 unsigned was_anonymous : 1;
1136 unsigned lazy_default_ctor : 1;
1137 unsigned lazy_copy_ctor : 1;
1138 unsigned lazy_assignment_op : 1;
1139 unsigned lazy_destructor : 1;
1141 unsigned has_const_init_ref : 1;
1142 unsigned has_complex_init_ref : 1;
1143 unsigned has_complex_assign_ref : 1;
1144 unsigned non_aggregate : 1;
1145 unsigned has_complex_dflt : 1;
1147 /* When adding a flag here, consider whether or not it ought to
1148 apply to a template instance if it applies to the template. If
1149 so, make sure to copy it in instantiate_class_template! */
1151 /* There are some bits left to fill out a 32-bit word. Keep track
1152 of this by updating the size of this bitfield whenever you add or
1154 unsigned dummy : 11;
1157 VEC(tree_pair_s,gc) *vcall_indices;
1160 VEC(tree,gc) *vbases;
1161 binding_table nested_udts;
1163 VEC(tree,gc) *pure_virtuals;
1164 tree friend_classes;
1165 VEC(tree,gc) * GTY((reorder ("resort_type_method_vec"))) methods;
1169 tree befriending_classes;
1170 /* In a RECORD_TYPE, information specific to Objective-C++, such
1171 as a list of adopted protocols or a pointer to a corresponding
1172 @interface. See objc/objc-act.h for details. */
1176 struct lang_type_ptrmem GTY(())
1178 struct lang_type_header h;
1182 struct lang_type GTY(())
1186 struct lang_type_header GTY((skip (""))) h;
1187 struct lang_type_class GTY((tag ("1"))) c;
1188 struct lang_type_ptrmem GTY((tag ("0"))) ptrmem;
1189 } GTY((desc ("%h.h.is_lang_type_class"))) u;
1192 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1194 #define LANG_TYPE_CLASS_CHECK(NODE) __extension__ \
1195 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1196 if (! lt->u.h.is_lang_type_class) \
1197 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1200 #define LANG_TYPE_PTRMEM_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__); \
1208 #define LANG_TYPE_CLASS_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.c)
1209 #define LANG_TYPE_PTRMEM_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.ptrmem)
1211 #endif /* ENABLE_TREE_CHECKING */
1213 /* Fields used for storing information before the class is defined.
1214 After the class is defined, these fields hold other information. */
1216 /* VEC(tree) of friends which were defined inline in this class
1218 #define CLASSTYPE_INLINE_FRIENDS(NODE) CLASSTYPE_PURE_VIRTUALS (NODE)
1220 /* Nonzero for _CLASSTYPE means that operator delete is defined. */
1221 #define TYPE_GETS_DELETE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->gets_delete)
1222 #define TYPE_GETS_REG_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 1)
1224 /* Nonzero if `new NODE[x]' should cause the allocation of extra
1225 storage to indicate how many array elements are in use. */
1226 #define TYPE_VEC_NEW_USES_COOKIE(NODE) \
1227 (CLASS_TYPE_P (NODE) \
1228 && LANG_TYPE_CLASS_CHECK (NODE)->vec_new_uses_cookie)
1230 /* Nonzero means that this _CLASSTYPE node defines ways of converting
1231 itself to other types. */
1232 #define TYPE_HAS_CONVERSION(NODE) \
1233 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_type_conversion)
1235 /* Nonzero means that NODE (a class type) has a default constructor --
1236 but that it has not yet been declared. */
1237 #define CLASSTYPE_LAZY_DEFAULT_CTOR(NODE) \
1238 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_default_ctor)
1240 /* Nonzero means that NODE (a class type) has a copy constructor --
1241 but that it has not yet been declared. */
1242 #define CLASSTYPE_LAZY_COPY_CTOR(NODE) \
1243 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_ctor)
1245 /* Nonzero means that NODE (a class type) has an assignment operator
1246 -- but that it has not yet been declared. */
1247 #define CLASSTYPE_LAZY_ASSIGNMENT_OP(NODE) \
1248 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_assignment_op)
1250 /* Nonzero means that NODE (a class type) has a destructor -- but that
1251 it has not yet been declared. */
1252 #define CLASSTYPE_LAZY_DESTRUCTOR(NODE) \
1253 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_destructor)
1255 /* Nonzero means that this _CLASSTYPE node overloads operator=(X&). */
1256 #define TYPE_HAS_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_assign_ref)
1258 /* True iff the class type NODE has an "operator =" whose parameter
1259 has a parameter of type "const X&". */
1260 #define TYPE_HAS_CONST_ASSIGN_REF(NODE) \
1261 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_const_assign_ref)
1263 /* Nonzero means that this _CLASSTYPE node has an X(X&) constructor. */
1264 #define TYPE_HAS_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->h.has_init_ref)
1265 #define TYPE_HAS_CONST_INIT_REF(NODE) \
1266 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_init_ref)
1268 /* Nonzero if this class defines an overloaded operator new. (An
1269 operator new [] doesn't count.) */
1270 #define TYPE_HAS_NEW_OPERATOR(NODE) \
1271 (LANG_TYPE_CLASS_CHECK (NODE)->has_new)
1273 /* Nonzero if this class defines an overloaded operator new[]. */
1274 #define TYPE_HAS_ARRAY_NEW_OPERATOR(NODE) \
1275 (LANG_TYPE_CLASS_CHECK (NODE)->has_array_new)
1277 /* Nonzero means that this type is being defined. I.e., the left brace
1278 starting the definition of this type has been seen. */
1279 #define TYPE_BEING_DEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->being_defined)
1281 /* Mark bits for repeated base checks. */
1282 #define TYPE_MARKED_P(NODE) TREE_LANG_FLAG_6 (TYPE_CHECK (NODE))
1284 /* Nonzero if the class NODE has multiple paths to the same (virtual)
1286 #define CLASSTYPE_DIAMOND_SHAPED_P(NODE) \
1287 (LANG_TYPE_CLASS_CHECK(NODE)->diamond_shaped)
1289 /* Nonzero if the class NODE has multiple instances of the same base
1291 #define CLASSTYPE_REPEATED_BASE_P(NODE) \
1292 (LANG_TYPE_CLASS_CHECK(NODE)->repeated_base)
1294 /* The member function with which the vtable will be emitted:
1295 the first noninline non-pure-virtual member function. NULL_TREE
1296 if there is no key function or if this is a class template */
1297 #define CLASSTYPE_KEY_METHOD(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->key_method)
1299 /* Vector member functions defined in this class. Each element is
1300 either a FUNCTION_DECL, a TEMPLATE_DECL, or an OVERLOAD. All
1301 functions with the same name end up in the same slot. The first
1302 two elements are for constructors, and destructors, respectively.
1303 All template conversion operators to innermost template dependent
1304 types are overloaded on the next slot, if they exist. Note, the
1305 names for these functions will not all be the same. The
1306 non-template conversion operators & templated conversions to
1307 non-innermost template types are next, followed by ordinary member
1308 functions. There may be empty entries at the end of the vector.
1309 The conversion operators are unsorted. The ordinary member
1310 functions are sorted, once the class is complete. */
1311 #define CLASSTYPE_METHOD_VEC(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->methods)
1313 /* For class templates, this is a TREE_LIST of all member data,
1314 functions, types, and friends in the order of declaration.
1315 The TREE_PURPOSE of each TREE_LIST is NULL_TREE for a friend,
1316 and the RECORD_TYPE for the class template otherwise. */
1317 #define CLASSTYPE_DECL_LIST(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->decl_list)
1319 /* The slot in the CLASSTYPE_METHOD_VEC where constructors go. */
1320 #define CLASSTYPE_CONSTRUCTOR_SLOT 0
1322 /* The slot in the CLASSTYPE_METHOD_VEC where destructors go. */
1323 #define CLASSTYPE_DESTRUCTOR_SLOT 1
1325 /* The first slot in the CLASSTYPE_METHOD_VEC where conversion
1326 operators can appear. */
1327 #define CLASSTYPE_FIRST_CONVERSION_SLOT 2
1329 /* A FUNCTION_DECL or OVERLOAD for the constructors for NODE. These
1330 are the constructors that take an in-charge parameter. */
1331 #define CLASSTYPE_CONSTRUCTORS(NODE) \
1332 (VEC_index (tree, CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_CONSTRUCTOR_SLOT))
1334 /* A FUNCTION_DECL for the destructor for NODE. These are the
1335 destructors that take an in-charge parameter. If
1336 CLASSTYPE_LAZY_DESTRUCTOR is true, then this entry will be NULL
1337 until the destructor is created with lazily_declare_fn. */
1338 #define CLASSTYPE_DESTRUCTORS(NODE) \
1339 (CLASSTYPE_METHOD_VEC (NODE) \
1340 ? VEC_index (tree, CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_DESTRUCTOR_SLOT) \
1343 /* A dictionary of the nested user-defined-types (class-types, or enums)
1344 found within this class. This table includes nested member class
1346 #define CLASSTYPE_NESTED_UTDS(NODE) \
1347 (LANG_TYPE_CLASS_CHECK (NODE)->nested_udts)
1349 /* Nonzero if NODE has a primary base class, i.e., a base class with
1350 which it shares the virtual function table pointer. */
1351 #define CLASSTYPE_HAS_PRIMARY_BASE_P(NODE) \
1352 (CLASSTYPE_PRIMARY_BINFO (NODE) != NULL_TREE)
1354 /* If non-NULL, this is the binfo for the primary base class, i.e.,
1355 the base class which contains the virtual function table pointer
1357 #define CLASSTYPE_PRIMARY_BINFO(NODE) \
1358 (LANG_TYPE_CLASS_CHECK (NODE)->primary_base)
1360 /* A vector of BINFOs for the direct and indirect virtual base classes
1361 that this type uses in a post-order depth-first left-to-right
1362 order. (In other words, these bases appear in the order that they
1363 should be initialized.) */
1364 #define CLASSTYPE_VBASECLASSES(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->vbases)
1366 /* The type corresponding to NODE when NODE is used as a base class,
1367 i.e., NODE without virtual base classes. */
1369 #define CLASSTYPE_AS_BASE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->as_base)
1371 /* True iff NODE is the CLASSTYPE_AS_BASE version of some type. */
1373 #define IS_FAKE_BASE_TYPE(NODE) \
1374 (TREE_CODE (NODE) == RECORD_TYPE \
1375 && TYPE_CONTEXT (NODE) && CLASS_TYPE_P (TYPE_CONTEXT (NODE)) \
1376 && CLASSTYPE_AS_BASE (TYPE_CONTEXT (NODE)) == (NODE))
1378 /* These are the size and alignment of the type without its virtual
1379 base classes, for when we use this type as a base itself. */
1380 #define CLASSTYPE_SIZE(NODE) TYPE_SIZE (CLASSTYPE_AS_BASE (NODE))
1381 #define CLASSTYPE_SIZE_UNIT(NODE) TYPE_SIZE_UNIT (CLASSTYPE_AS_BASE (NODE))
1382 #define CLASSTYPE_ALIGN(NODE) TYPE_ALIGN (CLASSTYPE_AS_BASE (NODE))
1383 #define CLASSTYPE_USER_ALIGN(NODE) TYPE_USER_ALIGN (CLASSTYPE_AS_BASE (NODE))
1385 /* The alignment of NODE, without its virtual bases, in bytes. */
1386 #define CLASSTYPE_ALIGN_UNIT(NODE) \
1387 (CLASSTYPE_ALIGN (NODE) / BITS_PER_UNIT)
1389 /* True if this a Java interface type, declared with
1390 '__attribute__ ((java_interface))'. */
1391 #define TYPE_JAVA_INTERFACE(NODE) \
1392 (LANG_TYPE_CLASS_CHECK (NODE)->java_interface)
1394 /* A VEC(tree) of virtual functions which cannot be inherited by
1395 derived classes. When deriving from this type, the derived
1396 class must provide its own definition for each of these functions. */
1397 #define CLASSTYPE_PURE_VIRTUALS(NODE) \
1398 (LANG_TYPE_CLASS_CHECK (NODE)->pure_virtuals)
1400 /* Nonzero means that this type has an X() constructor. */
1401 #define TYPE_HAS_DEFAULT_CONSTRUCTOR(NODE) \
1402 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_default_ctor)
1404 /* Nonzero means that this type contains a mutable member. */
1405 #define CLASSTYPE_HAS_MUTABLE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_mutable)
1406 #define TYPE_HAS_MUTABLE_P(NODE) (cp_has_mutable_p (NODE))
1408 /* Nonzero means that this class type is a non-POD class. */
1409 #define CLASSTYPE_NON_POD_P(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->non_pod_class)
1411 /* Nonzero means that this class contains pod types whose default
1412 initialization is not a zero initialization (namely, pointers to
1414 #define CLASSTYPE_NON_ZERO_INIT_P(NODE) \
1415 (LANG_TYPE_CLASS_CHECK (NODE)->non_zero_init)
1417 /* Nonzero if this class is "empty" in the sense of the C++ ABI. */
1418 #define CLASSTYPE_EMPTY_P(NODE) \
1419 (LANG_TYPE_CLASS_CHECK (NODE)->empty_p)
1421 /* Nonzero if this class is "nearly empty", i.e., contains only a
1422 virtual function table pointer. */
1423 #define CLASSTYPE_NEARLY_EMPTY_P(NODE) \
1424 (LANG_TYPE_CLASS_CHECK (NODE)->nearly_empty_p)
1426 /* Nonzero if this class contains an empty subobject. */
1427 #define CLASSTYPE_CONTAINS_EMPTY_CLASS_P(NODE) \
1428 (LANG_TYPE_CLASS_CHECK (NODE)->contains_empty_class_p)
1430 /* A list of class types of which this type is a friend. The
1431 TREE_VALUE is normally a TYPE, but will be a TEMPLATE_DECL in the
1432 case of a template friend. */
1433 #define CLASSTYPE_FRIEND_CLASSES(NODE) \
1434 (LANG_TYPE_CLASS_CHECK (NODE)->friend_classes)
1436 /* A list of the classes which grant friendship to this class. */
1437 #define CLASSTYPE_BEFRIENDING_CLASSES(NODE) \
1438 (LANG_TYPE_CLASS_CHECK (NODE)->befriending_classes)
1440 /* Say whether this node was declared as a "class" or a "struct". */
1441 #define CLASSTYPE_DECLARED_CLASS(NODE) \
1442 (LANG_TYPE_CLASS_CHECK (NODE)->declared_class)
1444 /* Nonzero if this class has const members
1445 which have no specified initialization. */
1446 #define CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE) \
1447 (TYPE_LANG_SPECIFIC (NODE) \
1448 ? LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init : 0)
1449 #define SET_CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE, VALUE) \
1450 (LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init = (VALUE))
1452 /* Nonzero if this class has ref members
1453 which have no specified initialization. */
1454 #define CLASSTYPE_REF_FIELDS_NEED_INIT(NODE) \
1455 (TYPE_LANG_SPECIFIC (NODE) \
1456 ? LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init : 0)
1457 #define SET_CLASSTYPE_REF_FIELDS_NEED_INIT(NODE, VALUE) \
1458 (LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init = (VALUE))
1460 /* Nonzero if this class is included from a header file which employs
1461 `#pragma interface', and it is not included in its implementation file. */
1462 #define CLASSTYPE_INTERFACE_ONLY(NODE) \
1463 (LANG_TYPE_CLASS_CHECK (NODE)->interface_only)
1465 /* True if we have already determined whether or not vtables, VTTs,
1466 typeinfo, and other similar per-class data should be emitted in
1467 this translation unit. This flag does not indicate whether or not
1468 these items should be emitted; it only indicates that we know one
1469 way or the other. */
1470 #define CLASSTYPE_INTERFACE_KNOWN(NODE) \
1471 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown == 0)
1472 /* The opposite of CLASSTYPE_INTERFACE_KNOWN. */
1473 #define CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1474 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown)
1476 #define SET_CLASSTYPE_INTERFACE_UNKNOWN_X(NODE,X) \
1477 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = !!(X))
1478 #define SET_CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1479 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 1)
1480 #define SET_CLASSTYPE_INTERFACE_KNOWN(NODE) \
1481 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 0)
1483 /* Nonzero if a _DECL node requires us to output debug info for this class. */
1484 #define CLASSTYPE_DEBUG_REQUESTED(NODE) \
1485 (LANG_TYPE_CLASS_CHECK (NODE)->debug_requested)
1487 /* Additional macros for inheritance information. */
1489 /* Nonzero means that this class is on a path leading to a new vtable. */
1490 #define BINFO_VTABLE_PATH_MARKED(NODE) BINFO_FLAG_1 (NODE)
1492 /* Nonzero means B (a BINFO) has its own vtable. Any copies will not
1493 have this flag set. */
1494 #define BINFO_NEW_VTABLE_MARKED(B) (BINFO_FLAG_2 (B))
1496 /* Compare a BINFO_TYPE with another type for equality. For a binfo,
1497 this is functionally equivalent to using same_type_p, but
1498 measurably faster. At least one of the arguments must be a
1499 BINFO_TYPE. The other can be a BINFO_TYPE or a regular type. If
1500 BINFO_TYPE(T) ever stops being the main variant of the class the
1501 binfo is for, this macro must change. */
1502 #define SAME_BINFO_TYPE_P(A, B) ((A) == (B))
1504 /* Any subobject that needs a new vtable must have a vptr and must not
1505 be a non-virtual primary base (since it would then use the vtable from a
1506 derived class and never become non-primary.) */
1507 #define SET_BINFO_NEW_VTABLE_MARKED(B) \
1508 (BINFO_NEW_VTABLE_MARKED (B) = 1, \
1509 gcc_assert (!BINFO_PRIMARY_P (B) || BINFO_VIRTUAL_P (B)), \
1510 gcc_assert (TYPE_VFIELD (BINFO_TYPE (B))))
1512 /* Nonzero if this binfo is for a dependent base - one that should not
1514 #define BINFO_DEPENDENT_BASE_P(NODE) BINFO_FLAG_3 (NODE)
1516 /* Nonzero if this binfo has lost its primary base binfo (because that
1517 is a nearly-empty virtual base that has been taken by some other
1518 base in the complete hierarchy. */
1519 #define BINFO_LOST_PRIMARY_P(NODE) BINFO_FLAG_4 (NODE)
1521 /* Nonzero if this BINFO is a primary base class. */
1522 #define BINFO_PRIMARY_P(NODE) BINFO_FLAG_5(NODE)
1524 /* Used by various search routines. */
1525 #define IDENTIFIER_MARKED(NODE) TREE_LANG_FLAG_0 (NODE)
1527 /* A VEC(tree_pair_s) of the vcall indices associated with the class
1528 NODE. The PURPOSE of each element is a FUNCTION_DECL for a virtual
1529 function. The VALUE is the index into the virtual table where the
1530 vcall offset for that function is stored, when NODE is a virtual
1532 #define CLASSTYPE_VCALL_INDICES(NODE) \
1533 (LANG_TYPE_CLASS_CHECK (NODE)->vcall_indices)
1535 /* The various vtables for the class NODE. The primary vtable will be
1536 first, followed by the construction vtables and VTT, if any. */
1537 #define CLASSTYPE_VTABLES(NODE) \
1538 (LANG_TYPE_CLASS_CHECK (NODE)->vtables)
1540 /* The std::type_info variable representing this class, or NULL if no
1541 such variable has been created. This field is only set for the
1542 TYPE_MAIN_VARIANT of the class. */
1543 #define CLASSTYPE_TYPEINFO_VAR(NODE) \
1544 (LANG_TYPE_CLASS_CHECK (NODE)->typeinfo_var)
1546 /* Accessor macros for the BINFO_VIRTUALS list. */
1548 /* The number of bytes by which to adjust the `this' pointer when
1549 calling this virtual function. Subtract this value from the this
1550 pointer. Always non-NULL, might be constant zero though. */
1551 #define BV_DELTA(NODE) (TREE_PURPOSE (NODE))
1553 /* If non-NULL, the vtable index at which to find the vcall offset
1554 when calling this virtual function. Add the value at that vtable
1555 index to the this pointer. */
1556 #define BV_VCALL_INDEX(NODE) (TREE_TYPE (NODE))
1558 /* The function to call. */
1559 #define BV_FN(NODE) (TREE_VALUE (NODE))
1562 /* For FUNCTION_TYPE or METHOD_TYPE, a list of the exceptions that
1563 this type can raise. Each TREE_VALUE is a _TYPE. The TREE_VALUE
1564 will be NULL_TREE to indicate a throw specification of `()', or
1565 no exceptions allowed. */
1566 #define TYPE_RAISES_EXCEPTIONS(NODE) TYPE_LANG_SLOT_1 (NODE)
1568 /* For FUNCTION_TYPE or METHOD_TYPE, return 1 iff it is declared `throw()'. */
1569 #define TYPE_NOTHROW_P(NODE) \
1570 (TYPE_RAISES_EXCEPTIONS (NODE) \
1571 && TREE_VALUE (TYPE_RAISES_EXCEPTIONS (NODE)) == NULL_TREE)
1573 /* The binding level associated with the namespace. */
1574 #define NAMESPACE_LEVEL(NODE) \
1575 (DECL_LANG_SPECIFIC (NODE)->decl_flags.u.level)
1578 /* If a DECL has DECL_LANG_SPECIFIC, it is either a lang_decl_flags or
1579 a lang_decl (which has lang_decl_flags as its initial prefix).
1580 This macro is nonzero for tree nodes whose DECL_LANG_SPECIFIC is
1581 the full lang_decl, and not just lang_decl_flags. Keep these
1582 checks in ascending code order. */
1583 #define CAN_HAVE_FULL_LANG_DECL_P(NODE) \
1584 (!(TREE_CODE (NODE) == FIELD_DECL \
1585 || TREE_CODE (NODE) == VAR_DECL \
1586 || TREE_CODE (NODE) == CONST_DECL \
1587 || TREE_CODE (NODE) == USING_DECL))
1589 struct lang_decl_flags GTY(())
1591 ENUM_BITFIELD(languages) language : 4;
1592 unsigned global_ctor_p : 1;
1593 unsigned global_dtor_p : 1;
1594 unsigned anticipated_p : 1;
1595 unsigned template_conv_p : 1;
1597 unsigned operator_attr : 1;
1598 unsigned constructor_attr : 1;
1599 unsigned destructor_attr : 1;
1600 unsigned friend_attr : 1;
1601 unsigned static_function : 1;
1602 unsigned pure_virtual : 1;
1603 unsigned has_in_charge_parm_p : 1;
1604 unsigned has_vtt_parm_p : 1;
1606 unsigned deferred : 1;
1607 unsigned use_template : 2;
1608 unsigned nonconverting : 1;
1609 unsigned not_really_extern : 1;
1610 unsigned initialized_in_class : 1;
1611 unsigned assignment_operator_p : 1;
1615 unsigned can_be_full : 1;
1616 unsigned thunk_p : 1;
1617 unsigned this_thunk_p : 1;
1618 unsigned repo_available_p : 1;
1619 unsigned hidden_friend_p : 1;
1620 unsigned threadprivate_p : 1;
1621 /* One unused bit. */
1624 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
1626 In a FUNCTION_DECL for which DECL_THUNK_P does not hold,
1627 VAR_DECL, TYPE_DECL, or TEMPLATE_DECL, this is
1628 DECL_TEMPLATE_INFO. */
1629 tree GTY ((tag ("0"))) template_info;
1631 /* In a NAMESPACE_DECL, this is NAMESPACE_LEVEL. */
1632 struct cp_binding_level * GTY ((tag ("1"))) level;
1633 } GTY ((desc ("%1.u1sel"))) u;
1635 union lang_decl_u2 {
1636 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
1637 THUNK_VIRTUAL_OFFSET.
1638 Otherwise this is DECL_ACCESS. */
1639 tree GTY ((tag ("0"))) access;
1641 /* For VAR_DECL in function, this is DECL_DISCRIMINATOR. */
1642 int GTY ((tag ("1"))) discriminator;
1643 } GTY ((desc ("%1.u2sel"))) u2;
1646 /* sorted_fields is sorted based on a pointer, so we need to be able
1647 to resort it if pointers get rearranged. */
1649 struct lang_decl GTY(())
1651 struct lang_decl_flags decl_flags;
1655 struct full_lang_decl
1657 /* In an overloaded operator, this is the value of
1658 DECL_OVERLOADED_OPERATOR_P. */
1659 ENUM_BITFIELD (tree_code) operator_code : 8;
1662 unsigned pending_inline_p : 1;
1663 unsigned spare : 22;
1665 /* For a non-thunk function decl, this is a tree list of
1666 friendly classes. For a thunk function decl, it is the
1667 thunked to function decl. */
1668 tree befriending_classes;
1670 /* For a non-virtual FUNCTION_DECL, this is
1671 DECL_FRIEND_CONTEXT. For a virtual FUNCTION_DECL for which
1672 DECL_THIS_THUNK_P does not hold, this is DECL_THUNKS. Both
1673 this pointer and result pointer adjusting thunks are
1674 chained here. This pointer thunks to return pointer thunks
1675 will be chained on the return pointer thunk. */
1680 /* In a non-thunk FUNCTION_DECL or TEMPLATE_DECL, this is
1681 DECL_CLONED_FUNCTION. */
1682 tree GTY ((tag ("0"))) cloned_function;
1684 /* In a FUNCTION_DECL for which THUNK_P holds this is the
1685 THUNK_FIXED_OFFSET. */
1686 HOST_WIDE_INT GTY ((tag ("1"))) fixed_offset;
1687 } GTY ((desc ("%0.decl_flags.thunk_p"))) u5;
1691 struct sorted_fields_type * GTY ((tag ("0"), reorder ("resort_sorted_fields")))
1693 struct cp_token_cache * GTY ((tag ("2"))) pending_inline_info;
1694 struct language_function * GTY ((tag ("1")))
1695 saved_language_function;
1696 } GTY ((desc ("%1.u3sel + %1.pending_inline_p"))) u;
1697 } GTY ((tag ("1"))) f;
1698 } GTY ((desc ("%1.decl_flags.can_be_full"))) u;
1701 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1703 #define LANG_DECL_U2_CHECK(NODE, TF) __extension__ \
1704 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
1705 if (lt->decl_flags.u2sel != TF) \
1706 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1707 <->decl_flags.u2; })
1711 #define LANG_DECL_U2_CHECK(NODE, TF) \
1712 (&DECL_LANG_SPECIFIC (NODE)->decl_flags.u2)
1714 #endif /* ENABLE_TREE_CHECKING */
1716 /* For a FUNCTION_DECL or a VAR_DECL, the language linkage for the
1717 declaration. Some entities (like a member function in a local
1718 class, or a local variable) do not have linkage at all, and this
1719 macro should not be used in those cases.
1721 Implementation note: A FUNCTION_DECL without DECL_LANG_SPECIFIC was
1722 created by language-independent code, and has C linkage. Most
1723 VAR_DECLs have C++ linkage, and do not have DECL_LANG_SPECIFIC, but
1724 we do create DECL_LANG_SPECIFIC for variables with non-C++ linkage. */
1725 #define DECL_LANGUAGE(NODE) \
1726 (DECL_LANG_SPECIFIC (NODE) \
1727 ? DECL_LANG_SPECIFIC (NODE)->decl_flags.language \
1728 : (TREE_CODE (NODE) == FUNCTION_DECL \
1729 ? lang_c : lang_cplusplus))
1731 /* Set the language linkage for NODE to LANGUAGE. */
1732 #define SET_DECL_LANGUAGE(NODE, LANGUAGE) \
1733 (DECL_LANG_SPECIFIC (NODE)->decl_flags.language = (LANGUAGE))
1735 /* For FUNCTION_DECLs: nonzero means that this function is a constructor. */
1736 #define DECL_CONSTRUCTOR_P(NODE) \
1737 (DECL_LANG_SPECIFIC (NODE)->decl_flags.constructor_attr)
1739 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a complete
1741 #define DECL_COMPLETE_CONSTRUCTOR_P(NODE) \
1742 (DECL_CONSTRUCTOR_P (NODE) \
1743 && DECL_NAME (NODE) == complete_ctor_identifier)
1745 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a base
1747 #define DECL_BASE_CONSTRUCTOR_P(NODE) \
1748 (DECL_CONSTRUCTOR_P (NODE) \
1749 && DECL_NAME (NODE) == base_ctor_identifier)
1751 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor, but not either the
1752 specialized in-charge constructor or the specialized not-in-charge
1754 #define DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P(NODE) \
1755 (DECL_CONSTRUCTOR_P (NODE) && !DECL_CLONED_FUNCTION_P (NODE))
1757 /* Nonzero if NODE (a FUNCTION_DECL) is a copy constructor. */
1758 #define DECL_COPY_CONSTRUCTOR_P(NODE) \
1759 (DECL_CONSTRUCTOR_P (NODE) && copy_fn_p (NODE) > 0)
1761 /* Nonzero if NODE is a destructor. */
1762 #define DECL_DESTRUCTOR_P(NODE) \
1763 (DECL_LANG_SPECIFIC (NODE)->decl_flags.destructor_attr)
1765 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor, but not the
1766 specialized in-charge constructor, in-charge deleting constructor,
1767 or the base destructor. */
1768 #define DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P(NODE) \
1769 (DECL_DESTRUCTOR_P (NODE) && !DECL_CLONED_FUNCTION_P (NODE))
1771 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
1773 #define DECL_COMPLETE_DESTRUCTOR_P(NODE) \
1774 (DECL_DESTRUCTOR_P (NODE) \
1775 && DECL_NAME (NODE) == complete_dtor_identifier)
1777 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a base
1779 #define DECL_BASE_DESTRUCTOR_P(NODE) \
1780 (DECL_DESTRUCTOR_P (NODE) \
1781 && DECL_NAME (NODE) == base_dtor_identifier)
1783 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
1784 object that deletes the object after it has been destroyed. */
1785 #define DECL_DELETING_DESTRUCTOR_P(NODE) \
1786 (DECL_DESTRUCTOR_P (NODE) \
1787 && DECL_NAME (NODE) == deleting_dtor_identifier)
1789 /* Nonzero if NODE (a FUNCTION_DECL) is a cloned constructor or
1791 #define DECL_CLONED_FUNCTION_P(NODE) \
1792 ((TREE_CODE (NODE) == FUNCTION_DECL \
1793 || TREE_CODE (NODE) == TEMPLATE_DECL) \
1794 && DECL_LANG_SPECIFIC (NODE) \
1795 && !DECL_LANG_SPECIFIC (NODE)->decl_flags.thunk_p \
1796 && DECL_CLONED_FUNCTION (NODE) != NULL_TREE)
1798 /* If DECL_CLONED_FUNCTION_P holds, this is the function that was
1800 #define DECL_CLONED_FUNCTION(NODE) \
1801 (DECL_LANG_SPECIFIC (NON_THUNK_FUNCTION_CHECK(NODE))->u.f.u5.cloned_function)
1803 /* Perform an action for each clone of FN, if FN is a function with
1804 clones. This macro should be used like:
1806 FOR_EACH_CLONE (clone, fn)
1810 #define FOR_EACH_CLONE(CLONE, FN) \
1811 if (TREE_CODE (FN) == FUNCTION_DECL \
1812 && (DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (FN) \
1813 || DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (FN))) \
1814 for (CLONE = TREE_CHAIN (FN); \
1815 CLONE && DECL_CLONED_FUNCTION_P (CLONE); \
1816 CLONE = TREE_CHAIN (CLONE))
1818 /* Nonzero if NODE has DECL_DISCRIMINATOR and not DECL_ACCESS. */
1819 #define DECL_DISCRIMINATOR_P(NODE) \
1820 (TREE_CODE (NODE) == VAR_DECL \
1821 && DECL_FUNCTION_SCOPE_P (NODE))
1823 /* Discriminator for name mangling. */
1824 #define DECL_DISCRIMINATOR(NODE) (LANG_DECL_U2_CHECK (NODE, 1)->discriminator)
1826 /* Nonzero if the VTT parm has been added to NODE. */
1827 #define DECL_HAS_VTT_PARM_P(NODE) \
1828 (DECL_LANG_SPECIFIC (NODE)->decl_flags.has_vtt_parm_p)
1830 /* Nonzero if NODE is a FUNCTION_DECL for which a VTT parameter is
1832 #define DECL_NEEDS_VTT_PARM_P(NODE) \
1833 (CLASSTYPE_VBASECLASSES (DECL_CONTEXT (NODE)) \
1834 && (DECL_BASE_CONSTRUCTOR_P (NODE) \
1835 || DECL_BASE_DESTRUCTOR_P (NODE)))
1837 /* Nonzero if NODE is a user-defined conversion operator. */
1838 #define DECL_CONV_FN_P(NODE) \
1839 (DECL_NAME (NODE) && IDENTIFIER_TYPENAME_P (DECL_NAME (NODE)))
1841 /* If FN is a conversion operator, the type to which it converts.
1842 Otherwise, NULL_TREE. */
1843 #define DECL_CONV_FN_TYPE(FN) \
1844 (DECL_CONV_FN_P (FN) ? TREE_TYPE (DECL_NAME (FN)) : NULL_TREE)
1846 /* Nonzero if NODE, which is a TEMPLATE_DECL, is a template
1847 conversion operator to a type dependent on the innermost template
1849 #define DECL_TEMPLATE_CONV_FN_P(NODE) \
1850 (DECL_LANG_SPECIFIC (NODE)->decl_flags.template_conv_p)
1852 /* Set the overloaded operator code for NODE to CODE. */
1853 #define SET_OVERLOADED_OPERATOR_CODE(NODE, CODE) \
1854 (DECL_LANG_SPECIFIC (NODE)->u.f.operator_code = (CODE))
1856 /* If NODE is an overloaded operator, then this returns the TREE_CODE
1857 associated with the overloaded operator.
1858 DECL_ASSIGNMENT_OPERATOR_P must also be checked to determine
1859 whether or not NODE is an assignment operator. If NODE is not an
1860 overloaded operator, ERROR_MARK is returned. Since the numerical
1861 value of ERROR_MARK is zero, this macro can be used as a predicate
1862 to test whether or not NODE is an overloaded operator. */
1863 #define DECL_OVERLOADED_OPERATOR_P(NODE) \
1864 (IDENTIFIER_OPNAME_P (DECL_NAME (NODE)) \
1865 ? DECL_LANG_SPECIFIC (NODE)->u.f.operator_code : ERROR_MARK)
1867 /* Nonzero if NODE is an assignment operator. */
1868 #define DECL_ASSIGNMENT_OPERATOR_P(NODE) \
1869 (DECL_LANG_SPECIFIC (NODE)->decl_flags.assignment_operator_p)
1871 /* For FUNCTION_DECLs: nonzero means that this function is a
1872 constructor or a destructor with an extra in-charge parameter to
1873 control whether or not virtual bases are constructed. */
1874 #define DECL_HAS_IN_CHARGE_PARM_P(NODE) \
1875 (DECL_LANG_SPECIFIC (NODE)->decl_flags.has_in_charge_parm_p)
1877 /* Nonzero if DECL is a declaration of __builtin_constant_p. */
1878 #define DECL_IS_BUILTIN_CONSTANT_P(NODE) \
1879 (TREE_CODE (NODE) == FUNCTION_DECL \
1880 && DECL_BUILT_IN_CLASS (NODE) == BUILT_IN_NORMAL \
1881 && DECL_FUNCTION_CODE (NODE) == BUILT_IN_CONSTANT_P)
1883 /* Nonzero for _DECL means that this decl appears in (or will appear
1884 in) as a member in a RECORD_TYPE or UNION_TYPE node. It is also for
1885 detecting circularity in case members are multiply defined. In the
1886 case of a VAR_DECL, it is also used to determine how program storage
1887 should be allocated. */
1888 #define DECL_IN_AGGR_P(NODE) (DECL_LANG_FLAG_3 (NODE))
1890 /* Nonzero for a VAR_DECL means that the variable's initialization (if
1891 any) has been processed. (In general, DECL_INITIALIZED_P is
1892 !DECL_EXTERN, but static data members may be initialized even if
1894 #define DECL_INITIALIZED_P(NODE) \
1895 (TREE_LANG_FLAG_1 (VAR_DECL_CHECK (NODE)))
1897 /* Nonzero for a VAR_DECL iff an explicit initializer was provided. */
1898 #define DECL_NONTRIVIALLY_INITIALIZED_P(NODE) \
1899 (TREE_LANG_FLAG_3 (VAR_DECL_CHECK (NODE)))
1901 /* Nonzero for a VAR_DECL that was initialized with a
1902 constant-expression. */
1903 #define DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P(NODE) \
1904 (TREE_LANG_FLAG_2 (VAR_DECL_CHECK (NODE)))
1906 /* Nonzero for a VAR_DECL that can be used in an integral constant
1911 An integral constant-expression can only involve ... const
1912 variables of static or enumeration types initialized with
1913 constant expressions ...
1915 The standard does not require that the expression be non-volatile.
1916 G++ implements the proposed correction in DR 457. */
1917 #define DECL_INTEGRAL_CONSTANT_VAR_P(NODE) \
1918 (TREE_CODE (NODE) == VAR_DECL \
1919 && CP_TYPE_CONST_NON_VOLATILE_P (TREE_TYPE (NODE)) \
1920 && INTEGRAL_OR_ENUMERATION_TYPE_P (TREE_TYPE (NODE)) \
1921 && DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (NODE))
1923 /* Nonzero if the DECL was initialized in the class definition itself,
1924 rather than outside the class. This is used for both static member
1925 VAR_DECLS, and FUNTION_DECLS that are defined in the class. */
1926 #define DECL_INITIALIZED_IN_CLASS_P(DECL) \
1927 (DECL_LANG_SPECIFIC (DECL)->decl_flags.initialized_in_class)
1929 /* Nonzero for DECL means that this decl is just a friend declaration,
1930 and should not be added to the list of members for this class. */
1931 #define DECL_FRIEND_P(NODE) (DECL_LANG_SPECIFIC (NODE)->decl_flags.friend_attr)
1933 /* A TREE_LIST of the types which have befriended this FUNCTION_DECL. */
1934 #define DECL_BEFRIENDING_CLASSES(NODE) \
1935 (DECL_LANG_SPECIFIC (NODE)->u.f.befriending_classes)
1937 /* Nonzero for FUNCTION_DECL means that this decl is a static
1939 #define DECL_STATIC_FUNCTION_P(NODE) \
1940 (DECL_LANG_SPECIFIC (NODE)->decl_flags.static_function)
1942 /* Nonzero for FUNCTION_DECL means that this decl is a non-static
1944 #define DECL_NONSTATIC_MEMBER_FUNCTION_P(NODE) \
1945 (TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE)
1947 /* Nonzero for FUNCTION_DECL means that this decl is a member function
1948 (static or non-static). */
1949 #define DECL_FUNCTION_MEMBER_P(NODE) \
1950 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) || DECL_STATIC_FUNCTION_P (NODE))
1952 /* Nonzero for FUNCTION_DECL means that this member function
1953 has `this' as const X *const. */
1954 #define DECL_CONST_MEMFUNC_P(NODE) \
1955 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
1956 && CP_TYPE_CONST_P (TREE_TYPE (TREE_VALUE \
1957 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
1959 /* Nonzero for FUNCTION_DECL means that this member function
1960 has `this' as volatile X *const. */
1961 #define DECL_VOLATILE_MEMFUNC_P(NODE) \
1962 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
1963 && CP_TYPE_VOLATILE_P (TREE_TYPE (TREE_VALUE \
1964 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
1966 /* Nonzero for a DECL means that this member is a non-static member. */
1967 #define DECL_NONSTATIC_MEMBER_P(NODE) \
1968 ((TREE_CODE (NODE) == FUNCTION_DECL \
1969 && DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE)) \
1970 || TREE_CODE (NODE) == FIELD_DECL)
1972 /* Nonzero for _DECL means that this member object type
1974 #define DECL_MUTABLE_P(NODE) (DECL_LANG_FLAG_0 (NODE))
1976 /* Nonzero for _DECL means that this constructor is a non-converting
1978 #define DECL_NONCONVERTING_P(NODE) \
1979 (DECL_LANG_SPECIFIC (NODE)->decl_flags.nonconverting)
1981 /* Nonzero for FUNCTION_DECL means that this member function is a pure
1982 virtual function. */
1983 #define DECL_PURE_VIRTUAL_P(NODE) \
1984 (DECL_LANG_SPECIFIC (NODE)->decl_flags.pure_virtual)
1986 /* True (in a FUNCTION_DECL) if NODE is a virtual function that is an
1987 invalid overrider for a function from a base class. Once we have
1988 complained about an invalid overrider we avoid complaining about it
1990 #define DECL_INVALID_OVERRIDER_P(NODE) \
1991 (DECL_LANG_FLAG_4 (NODE))
1993 /* The thunks associated with NODE, a FUNCTION_DECL. */
1994 #define DECL_THUNKS(NODE) \
1995 (DECL_LANG_SPECIFIC (NODE)->u.f.context)
1997 /* Nonzero if NODE is a thunk, rather than an ordinary function. */
1998 #define DECL_THUNK_P(NODE) \
1999 (TREE_CODE (NODE) == FUNCTION_DECL \
2000 && DECL_LANG_SPECIFIC (NODE) \
2001 && DECL_LANG_SPECIFIC (NODE)->decl_flags.thunk_p)
2003 /* Set DECL_THUNK_P for node. */
2004 #define SET_DECL_THUNK_P(NODE, THIS_ADJUSTING) \
2005 (DECL_LANG_SPECIFIC (NODE)->decl_flags.thunk_p = 1, \
2006 DECL_LANG_SPECIFIC (NODE)->u.f.u3sel = 1, \
2007 DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p = (THIS_ADJUSTING))
2009 /* Nonzero if NODE is a this pointer adjusting thunk. */
2010 #define DECL_THIS_THUNK_P(NODE) \
2011 (DECL_THUNK_P (NODE) && DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p)
2013 /* Nonzero if NODE is a result pointer adjusting thunk. */
2014 #define DECL_RESULT_THUNK_P(NODE) \
2015 (DECL_THUNK_P (NODE) && !DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p)
2017 /* Nonzero if NODE is a FUNCTION_DECL, but not a thunk. */
2018 #define DECL_NON_THUNK_FUNCTION_P(NODE) \
2019 (TREE_CODE (NODE) == FUNCTION_DECL && !DECL_THUNK_P (NODE))
2021 /* Nonzero if NODE is `extern "C"'. */
2022 #define DECL_EXTERN_C_P(NODE) \
2023 (DECL_LANGUAGE (NODE) == lang_c)
2025 /* Nonzero if NODE is an `extern "C"' function. */
2026 #define DECL_EXTERN_C_FUNCTION_P(NODE) \
2027 (DECL_NON_THUNK_FUNCTION_P (NODE) && DECL_EXTERN_C_P (NODE))
2029 /* True iff DECL is an entity with vague linkage whose definition is
2030 available in this translation unit. */
2031 #define DECL_REPO_AVAILABLE_P(NODE) \
2032 (DECL_LANG_SPECIFIC (NODE)->decl_flags.repo_available_p)
2034 /* Nonzero if this DECL is the __PRETTY_FUNCTION__ variable in a
2035 template function. */
2036 #define DECL_PRETTY_FUNCTION_P(NODE) \
2037 (TREE_LANG_FLAG_0 (VAR_DECL_CHECK (NODE)))
2039 /* The _TYPE context in which this _DECL appears. This field holds the
2040 class where a virtual function instance is actually defined. */
2041 #define DECL_CLASS_CONTEXT(NODE) \
2042 (DECL_CLASS_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : NULL_TREE)
2044 /* For a non-member friend function, the class (if any) in which this
2045 friend was defined. For example, given:
2047 struct S { friend void f (); };
2049 the DECL_FRIEND_CONTEXT for `f' will be `S'. */
2050 #define DECL_FRIEND_CONTEXT(NODE) \
2051 ((DECL_FRIEND_P (NODE) && !DECL_FUNCTION_MEMBER_P (NODE)) \
2052 ? DECL_LANG_SPECIFIC (NODE)->u.f.context \
2055 /* Set the DECL_FRIEND_CONTEXT for NODE to CONTEXT. */
2056 #define SET_DECL_FRIEND_CONTEXT(NODE, CONTEXT) \
2057 (DECL_LANG_SPECIFIC (NODE)->u.f.context = (CONTEXT))
2059 /* NULL_TREE in DECL_CONTEXT represents the global namespace. */
2060 #define CP_DECL_CONTEXT(NODE) \
2061 (DECL_CONTEXT (NODE) ? DECL_CONTEXT (NODE) : global_namespace)
2062 #define CP_TYPE_CONTEXT(NODE) \
2063 (TYPE_CONTEXT (NODE) ? TYPE_CONTEXT (NODE) : global_namespace)
2064 #define FROB_CONTEXT(NODE) ((NODE) == global_namespace ? NULL_TREE : (NODE))
2066 /* 1 iff NODE has namespace scope, including the global namespace. */
2067 #define DECL_NAMESPACE_SCOPE_P(NODE) \
2068 (!DECL_TEMPLATE_PARM_P (NODE) \
2069 && TREE_CODE (CP_DECL_CONTEXT (NODE)) == NAMESPACE_DECL)
2071 /* 1 iff NODE is a class member. */
2072 #define DECL_CLASS_SCOPE_P(NODE) \
2073 (DECL_CONTEXT (NODE) && TYPE_P (DECL_CONTEXT (NODE)))
2075 #define TYPE_CLASS_SCOPE_P(NODE) \
2076 (TYPE_CONTEXT (NODE) && TYPE_P (TYPE_CONTEXT (NODE)))
2078 /* 1 iff NODE is function-local. */
2079 #define DECL_FUNCTION_SCOPE_P(NODE) \
2080 (DECL_CONTEXT (NODE) \
2081 && TREE_CODE (DECL_CONTEXT (NODE)) == FUNCTION_DECL)
2083 /* 1 iff VAR_DECL node NODE is a type-info decl. This flag is set for
2084 both the primary typeinfo object and the associated NTBS name. */
2085 #define DECL_TINFO_P(NODE) TREE_LANG_FLAG_4 (VAR_DECL_CHECK (NODE))
2087 /* 1 iff VAR_DECL node NODE is virtual table or VTT. */
2088 #define DECL_VTABLE_OR_VTT_P(NODE) TREE_LANG_FLAG_5 (VAR_DECL_CHECK (NODE))
2090 /* Returns 1 iff VAR_DECL is a construction virtual table.
2091 DECL_VTABLE_OR_VTT_P will be true in this case and must be checked
2092 before using this macro. */
2093 #define DECL_CONSTRUCTION_VTABLE_P(NODE) \
2094 TREE_LANG_FLAG_6 (VAR_DECL_CHECK (NODE))
2096 /* 1 iff NODE is function-local, but for types. */
2097 #define LOCAL_CLASS_P(NODE) \
2098 (decl_function_context (TYPE_MAIN_DECL (NODE)) != NULL_TREE)
2100 /* For a NAMESPACE_DECL: the list of using namespace directives
2101 The PURPOSE is the used namespace, the value is the namespace
2102 that is the common ancestor. */
2103 #define DECL_NAMESPACE_USING(NODE) DECL_VINDEX (NAMESPACE_DECL_CHECK (NODE))
2105 /* In a NAMESPACE_DECL, the DECL_INITIAL is used to record all users
2106 of a namespace, to record the transitive closure of using namespace. */
2107 #define DECL_NAMESPACE_USERS(NODE) DECL_INITIAL (NAMESPACE_DECL_CHECK (NODE))
2109 /* In a NAMESPACE_DECL, the list of namespaces which have associated
2110 themselves with this one. */
2111 #define DECL_NAMESPACE_ASSOCIATIONS(NODE) \
2112 (NAMESPACE_DECL_CHECK (NODE)->decl_non_common.saved_tree)
2114 /* In a NAMESPACE_DECL, points to the original namespace if this is
2115 a namespace alias. */
2116 #define DECL_NAMESPACE_ALIAS(NODE) \
2117 DECL_ABSTRACT_ORIGIN (NAMESPACE_DECL_CHECK (NODE))
2118 #define ORIGINAL_NAMESPACE(NODE) \
2119 (DECL_NAMESPACE_ALIAS (NODE) ? DECL_NAMESPACE_ALIAS (NODE) : (NODE))
2121 /* Nonzero if NODE is the std namespace. */
2122 #define DECL_NAMESPACE_STD_P(NODE) \
2123 (TREE_CODE (NODE) == NAMESPACE_DECL \
2124 && CP_DECL_CONTEXT (NODE) == global_namespace \
2125 && DECL_NAME (NODE) == std_identifier)
2127 /* In a TREE_LIST concatenating using directives, indicate indirect
2129 #define TREE_INDIRECT_USING(NODE) (TREE_LIST_CHECK (NODE)->base.lang_flag_0)
2131 extern tree decl_shadowed_for_var_lookup (tree);
2132 extern void decl_shadowed_for_var_insert (tree, tree);
2134 /* Non zero if this is a using decl for a dependent scope. */
2135 #define DECL_DEPENDENT_P(NODE) DECL_LANG_FLAG_0 (USING_DECL_CHECK (NODE))
2137 /* The scope named in a using decl. */
2138 #define USING_DECL_SCOPE(NODE) TREE_TYPE (USING_DECL_CHECK (NODE))
2140 /* The decls named by a using decl. */
2141 #define USING_DECL_DECLS(NODE) DECL_INITIAL (USING_DECL_CHECK (NODE))
2143 /* In a VAR_DECL, true if we have a shadowed local variable
2144 in the shadowed var table for this VAR_DECL. */
2145 #define DECL_HAS_SHADOWED_FOR_VAR_P(NODE) \
2146 (VAR_DECL_CHECK (NODE)->decl_with_vis.shadowed_for_var_p)
2148 /* In a VAR_DECL for a variable declared in a for statement,
2149 this is the shadowed (local) variable. */
2150 #define DECL_SHADOWED_FOR_VAR(NODE) \
2151 (DECL_HAS_SHADOWED_FOR_VAR_P(NODE) ? decl_shadowed_for_var_lookup (NODE) : NULL)
2153 #define SET_DECL_SHADOWED_FOR_VAR(NODE, VAL) \
2154 (decl_shadowed_for_var_insert (NODE, VAL))
2156 /* In a FUNCTION_DECL, this is nonzero if this function was defined in
2157 the class definition. We have saved away the text of the function,
2158 but have not yet processed it. */
2159 #define DECL_PENDING_INLINE_P(NODE) \
2160 (DECL_LANG_SPECIFIC (NODE)->u.f.pending_inline_p)
2162 /* If DECL_PENDING_INLINE_P holds, this is the saved text of the
2164 #define DECL_PENDING_INLINE_INFO(NODE) \
2165 (DECL_LANG_SPECIFIC (NODE)->u.f.u.pending_inline_info)
2167 /* For a TYPE_DECL: if this structure has many fields, we'll sort them
2168 and put them into a TREE_VEC. */
2169 #define DECL_SORTED_FIELDS(NODE) \
2170 (DECL_LANG_SPECIFIC (TYPE_DECL_CHECK (NODE))->u.f.u.sorted_fields)
2172 /* True if on the deferred_fns (see decl2.c) list. */
2173 #define DECL_DEFERRED_FN(DECL) \
2174 (DECL_LANG_SPECIFIC (DECL)->decl_flags.deferred)
2176 /* If non-NULL for a VAR_DECL, FUNCTION_DECL, TYPE_DECL or
2177 TEMPLATE_DECL, the entity is either a template specialization (if
2178 DECL_USE_TEMPLATE is nonzero) or the abstract instance of the
2181 In either case, DECL_TEMPLATE_INFO is a TREE_LIST, whose
2182 TREE_PURPOSE is the TEMPLATE_DECL of which this entity is a
2183 specialization or abstract instance. The TREE_VALUE is the
2184 template arguments used to specialize the template.
2188 template <typename T> struct S { friend void f(T) {} };
2190 In this case, S<int>::f is, from the point of view of the compiler,
2191 an instantiation of a template -- but, from the point of view of
2192 the language, each instantiation of S results in a wholly unrelated
2193 global function f. In this case, DECL_TEMPLATE_INFO for S<int>::f
2194 will be non-NULL, but DECL_USE_TEMPLATE will be zero. */
2195 #define DECL_TEMPLATE_INFO(NODE) \
2196 (DECL_LANG_SPECIFIC (VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK (NODE)) \
2197 ->decl_flags.u.template_info)
2199 /* For a VAR_DECL, indicates that the variable has been processed.
2200 This flag is set and unset throughout the code; it is always
2201 used for a temporary purpose. */
2202 #define DECL_VAR_MARKED_P(NODE) \
2203 (DECL_LANG_FLAG_4 (VAR_DECL_CHECK (NODE)))
2205 /* Template information for a RECORD_TYPE or UNION_TYPE. */
2206 #define CLASSTYPE_TEMPLATE_INFO(NODE) \
2207 (LANG_TYPE_CLASS_CHECK (RECORD_OR_UNION_CHECK (NODE))->template_info)
2209 /* Template information for an ENUMERAL_TYPE. Although an enumeration may
2210 not be a primary template, it may be declared within the scope of a
2211 primary template and the enumeration constants may depend on
2212 non-type template parameters. */
2213 #define ENUM_TEMPLATE_INFO(NODE) \
2214 (TYPE_LANG_SLOT_1 (ENUMERAL_TYPE_CHECK (NODE)))
2216 /* Template information for a template template parameter. */
2217 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO(NODE) \
2218 (LANG_TYPE_CLASS_CHECK (BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK (NODE)) \
2221 /* Template information for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2222 #define TYPE_TEMPLATE_INFO(NODE) \
2223 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2224 ? ENUM_TEMPLATE_INFO (NODE) : \
2225 (TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM \
2226 ? TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO (NODE) : \
2227 (TYPE_LANG_SPECIFIC (NODE) \
2228 ? CLASSTYPE_TEMPLATE_INFO (NODE) \
2231 /* Set the template information for an ENUMERAL_, RECORD_, or
2232 UNION_TYPE to VAL. */
2233 #define SET_TYPE_TEMPLATE_INFO(NODE, VAL) \
2234 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2235 ? (ENUM_TEMPLATE_INFO (NODE) = (VAL)) \
2236 : (CLASSTYPE_TEMPLATE_INFO (NODE) = (VAL)))
2238 #define TI_TEMPLATE(NODE) (TREE_PURPOSE (NODE))
2239 #define TI_ARGS(NODE) (TREE_VALUE (NODE))
2240 #define TI_PENDING_TEMPLATE_FLAG(NODE) TREE_LANG_FLAG_1 (NODE)
2242 /* We use TREE_VECs to hold template arguments. If there is only one
2243 level of template arguments, then the TREE_VEC contains the
2244 arguments directly. If there is more than one level of template
2245 arguments, then each entry in the TREE_VEC is itself a TREE_VEC,
2246 containing the template arguments for a single level. The first
2247 entry in the outer TREE_VEC is the outermost level of template
2248 parameters; the last is the innermost.
2250 It is incorrect to ever form a template argument vector containing
2251 only one level of arguments, but which is a TREE_VEC containing as
2252 its only entry the TREE_VEC for that level. */
2254 /* Nonzero if the template arguments is actually a vector of vectors,
2255 rather than just a vector. */
2256 #define TMPL_ARGS_HAVE_MULTIPLE_LEVELS(NODE) \
2257 (NODE && TREE_VEC_ELT (NODE, 0) \
2258 && TREE_CODE (TREE_VEC_ELT (NODE, 0)) == TREE_VEC)
2260 /* The depth of a template argument vector. When called directly by
2261 the parser, we use a TREE_LIST rather than a TREE_VEC to represent
2262 template arguments. In fact, we may even see NULL_TREE if there
2263 are no template arguments. In both of those cases, there is only
2264 one level of template arguments. */
2265 #define TMPL_ARGS_DEPTH(NODE) \
2266 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (NODE) ? TREE_VEC_LENGTH (NODE) : 1)
2268 /* The LEVELth level of the template ARGS. The outermost level of
2269 args is level 1, not level 0. */
2270 #define TMPL_ARGS_LEVEL(ARGS, LEVEL) \
2271 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (ARGS) \
2272 ? TREE_VEC_ELT (ARGS, (LEVEL) - 1) : (ARGS))
2274 /* Set the LEVELth level of the template ARGS to VAL. This macro does
2275 not work with single-level argument vectors. */
2276 #define SET_TMPL_ARGS_LEVEL(ARGS, LEVEL, VAL) \
2277 (TREE_VEC_ELT (ARGS, (LEVEL) - 1) = (VAL))
2279 /* Accesses the IDXth parameter in the LEVELth level of the ARGS. */
2280 #define TMPL_ARG(ARGS, LEVEL, IDX) \
2281 (TREE_VEC_ELT (TMPL_ARGS_LEVEL (ARGS, LEVEL), IDX))
2283 /* Given a single level of template arguments in NODE, return the
2284 number of arguments. */
2285 #define NUM_TMPL_ARGS(NODE) \
2286 (TREE_VEC_LENGTH (NODE))
2288 /* Returns the innermost level of template arguments in ARGS. */
2289 #define INNERMOST_TEMPLATE_ARGS(NODE) \
2290 (get_innermost_template_args ((NODE), 1))
2292 /* The number of levels of template parameters given by NODE. */
2293 #define TMPL_PARMS_DEPTH(NODE) \
2294 ((HOST_WIDE_INT) TREE_INT_CST_LOW (TREE_PURPOSE (NODE)))
2296 /* The TEMPLATE_DECL instantiated or specialized by NODE. This
2297 TEMPLATE_DECL will be the immediate parent, not the most general
2298 template. For example, in:
2300 template <class T> struct S { template <class U> void f(U); }
2302 the FUNCTION_DECL for S<int>::f<double> will have, as its
2303 DECL_TI_TEMPLATE, `template <class U> S<int>::f<U>'.
2305 As a special case, for a member friend template of a template
2306 class, this value will not be a TEMPLATE_DECL, but rather an
2307 IDENTIFIER_NODE or OVERLOAD indicating the name of the template and
2308 any explicit template arguments provided. For example, in:
2310 template <class T> struct S { friend void f<int>(int, double); }
2312 the DECL_TI_TEMPLATE will be an IDENTIFIER_NODE for `f' and the
2313 DECL_TI_ARGS will be {int}. */
2314 #define DECL_TI_TEMPLATE(NODE) TI_TEMPLATE (DECL_TEMPLATE_INFO (NODE))
2316 /* The template arguments used to obtain this decl from the most
2317 general form of DECL_TI_TEMPLATE. For the example given for
2318 DECL_TI_TEMPLATE, the DECL_TI_ARGS will be {int, double}. These
2319 are always the full set of arguments required to instantiate this
2320 declaration from the most general template specialized here. */
2321 #define DECL_TI_ARGS(NODE) TI_ARGS (DECL_TEMPLATE_INFO (NODE))
2323 /* The TEMPLATE_DECL associated with NODE, a class type. Even if NODE
2324 will be generated from a partial specialization, the TEMPLATE_DECL
2325 referred to here will be the original template. For example,
2328 template <typename T> struct S {};
2329 template <typename T> struct S<T*> {};
2331 the CLASSTPYE_TI_TEMPLATE for S<int*> will be S, not the S<T*>. */
2332 #define CLASSTYPE_TI_TEMPLATE(NODE) TI_TEMPLATE (CLASSTYPE_TEMPLATE_INFO (NODE))
2333 #define CLASSTYPE_TI_ARGS(NODE) TI_ARGS (CLASSTYPE_TEMPLATE_INFO (NODE))
2335 /* For a template instantiation TYPE, returns the TYPE corresponding
2336 to the primary template. Otherwise returns TYPE itself. */
2337 #define CLASSTYPE_PRIMARY_TEMPLATE_TYPE(TYPE) \
2338 ((CLASSTYPE_USE_TEMPLATE ((TYPE)) \
2339 && !CLASSTYPE_TEMPLATE_SPECIALIZATION ((TYPE))) \
2340 ? TREE_TYPE (DECL_TEMPLATE_RESULT (DECL_PRIMARY_TEMPLATE \
2341 (CLASSTYPE_TI_TEMPLATE ((TYPE))))) \
2344 /* Like CLASS_TI_TEMPLATE, but also works for ENUMERAL_TYPEs. */
2345 #define TYPE_TI_TEMPLATE(NODE) \
2346 (TI_TEMPLATE (TYPE_TEMPLATE_INFO (NODE)))
2348 /* Like DECL_TI_ARGS, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2349 #define TYPE_TI_ARGS(NODE) \
2350 (TI_ARGS (TYPE_TEMPLATE_INFO (NODE)))
2352 #define INNERMOST_TEMPLATE_PARMS(NODE) TREE_VALUE (NODE)
2354 /* Nonzero if NODE (a TEMPLATE_DECL) is a member template, in the
2355 sense of [temp.mem]. */
2356 #define DECL_MEMBER_TEMPLATE_P(NODE) \
2357 (DECL_LANG_FLAG_1 (TEMPLATE_DECL_CHECK (NODE)))
2359 /* Nonzero if the NODE corresponds to the template parameters for a
2360 member template, whose inline definition is being processed after
2361 the class definition is complete. */
2362 #define TEMPLATE_PARMS_FOR_INLINE(NODE) TREE_LANG_FLAG_1 (NODE)
2364 /* Determine if a parameter (i.e., a PARM_DECL) is a function
2366 #define FUNCTION_PARAMETER_PACK_P(NODE) \
2367 (DECL_LANG_FLAG_1 (PARM_DECL_CHECK (NODE)))
2369 /* Determines if NODE is an expansion of one or more parameter packs,
2370 e.g., a TYPE_PACK_EXPANSION or EXPR_PACK_EXPANSION. */
2371 #define PACK_EXPANSION_P(NODE) \
2372 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION \
2373 || TREE_CODE (NODE) == EXPR_PACK_EXPANSION)
2375 /* Extracts the type or expression pattern from a TYPE_PACK_EXPANSION or
2376 EXPR_PACK_EXPANSION. */
2377 #define PACK_EXPANSION_PATTERN(NODE) \
2378 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION? TREE_TYPE (NODE) \
2379 : TREE_OPERAND (NODE, 0))
2381 /* Sets the type or expression pattern for a TYPE_PACK_EXPANSION or
2382 EXPR_PACK_EXPANSION. */
2383 #define SET_PACK_EXPANSION_PATTERN(NODE,VALUE) \
2384 if (TREE_CODE (NODE) == TYPE_PACK_EXPANSION) \
2385 TREE_TYPE (NODE) = VALUE; \
2387 TREE_OPERAND (NODE, 0) = VALUE
2389 /* The list of parameter packs used in the PACK_EXPANSION_* node. The
2390 TREE_VALUE of each TREE_LIST contains the parameter packs. */
2391 #define PACK_EXPANSION_PARAMETER_PACKS(NODE) TREE_CHAIN (NODE)
2393 /* Determine if this is an argument pack. */
2394 #define ARGUMENT_PACK_P(NODE) \
2395 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK \
2396 || TREE_CODE (NODE) == NONTYPE_ARGUMENT_PACK)
2398 /* The arguments stored in an argument pack. Arguments are stored in a
2399 TREE_VEC, which may have length zero. */
2400 #define ARGUMENT_PACK_ARGS(NODE) \
2401 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK? TREE_TYPE (NODE) \
2402 : TREE_OPERAND (NODE, 0))
2404 /* Set the arguments stored in an argument pack. VALUE must be a
2406 #define SET_ARGUMENT_PACK_ARGS(NODE,VALUE) \
2407 if (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK) \
2408 TREE_TYPE (NODE) = VALUE; \
2410 TREE_OPERAND (NODE, 0) = VALUE
2412 /* Whether the argument pack is "incomplete", meaning that more
2413 arguments can still be deduced. Incomplete argument packs are only
2414 used when the user has provided an explicit template argument list
2415 for a variadic function template. Some of the explicit template
2416 arguments will be placed into the beginning of the argument pack,
2417 but additional arguments might still be deduced. */
2418 #define ARGUMENT_PACK_INCOMPLETE_P(NODE) \
2419 TREE_LANG_FLAG_0 (ARGUMENT_PACK_ARGS (NODE))
2421 /* When ARGUMENT_PACK_INCOMPLETE_P, stores the explicit template
2422 arguments used to fill this pack. */
2423 #define ARGUMENT_PACK_EXPLICIT_ARGS(NODE) \
2424 TREE_TYPE (ARGUMENT_PACK_ARGS (NODE))
2426 /* In an ARGUMENT_PACK_SELECT, the argument pack from which an
2427 argument will be selected. */
2428 #define ARGUMENT_PACK_SELECT_FROM_PACK(NODE) \
2429 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->argument_pack)
2431 /* In an ARGUMENT_PACK_SELECT, the index of the argument we want to
2433 #define ARGUMENT_PACK_SELECT_INDEX(NODE) \
2434 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->index)
2436 /* In an ARGUMENT_PACK_SELECT, the actual underlying argument that the
2437 ARGUMENT_PACK_SELECT represents. */
2438 #define ARGUMENT_PACK_SELECT_ARG(NODE) \
2439 TREE_VEC_ELT (ARGUMENT_PACK_ARGS (ARGUMENT_PACK_SELECT_FROM_PACK (NODE)), \
2440 ARGUMENT_PACK_SELECT_INDEX (NODE));
2442 /* In a FUNCTION_DECL, the saved language-specific per-function data. */
2443 #define DECL_SAVED_FUNCTION_DATA(NODE) \
2444 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (NODE)) \
2445 ->u.f.u.saved_language_function)
2447 /* Indicates an indirect_expr is for converting a reference. */
2448 #define REFERENCE_REF_P(NODE) \
2449 TREE_LANG_FLAG_0 (INDIRECT_REF_CHECK (NODE))
2451 #define NEW_EXPR_USE_GLOBAL(NODE) \
2452 TREE_LANG_FLAG_0 (NEW_EXPR_CHECK (NODE))
2453 #define DELETE_EXPR_USE_GLOBAL(NODE) \
2454 TREE_LANG_FLAG_0 (DELETE_EXPR_CHECK (NODE))
2455 #define DELETE_EXPR_USE_VEC(NODE) \
2456 TREE_LANG_FLAG_1 (DELETE_EXPR_CHECK (NODE))
2458 /* Indicates that this is a non-dependent COMPOUND_EXPR which will
2459 resolve to a function call. */
2460 #define COMPOUND_EXPR_OVERLOADED(NODE) \
2461 TREE_LANG_FLAG_0 (COMPOUND_EXPR_CHECK (NODE))
2463 /* In a CALL_EXPR appearing in a template, true if Koenig lookup
2464 should be performed at instantiation time. */
2465 #define KOENIG_LOOKUP_P(NODE) TREE_LANG_FLAG_0 (CALL_EXPR_CHECK (NODE))
2467 /* Indicates whether a string literal has been parenthesized. Such
2468 usages are disallowed in certain circumstances. */
2470 #define PAREN_STRING_LITERAL_P(NODE) \
2471 TREE_LANG_FLAG_0 (STRING_CST_CHECK (NODE))
2473 /* Nonzero if this AGGR_INIT_EXPR provides for initialization via a
2474 constructor call, rather than an ordinary function call. */
2475 #define AGGR_INIT_VIA_CTOR_P(NODE) \
2476 TREE_LANG_FLAG_0 (AGGR_INIT_EXPR_CHECK (NODE))
2478 /* AGGR_INIT_EXPR accessors. These are equivalent to the CALL_EXPR
2479 accessors, except for AGGR_INIT_EXPR_SLOT (which takes the place of
2480 CALL_EXPR_STATIC_CHAIN). */
2482 #define AGGR_INIT_EXPR_FN(NODE) TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 1)
2483 #define AGGR_INIT_EXPR_SLOT(NODE) \
2484 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 2)
2485 #define AGGR_INIT_EXPR_ARG(NODE, I) \
2486 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), (I) + 3)
2487 #define aggr_init_expr_nargs(NODE) (VL_EXP_OPERAND_LENGTH(NODE) - 3)
2489 /* AGGR_INIT_EXPR_ARGP returns a pointer to the argument vector for NODE.
2490 We can't use &AGGR_INIT_EXPR_ARG (NODE, 0) because that will complain if
2491 the argument count is zero when checking is enabled. Instead, do
2492 the pointer arithmetic to advance past the 3 fixed operands in a
2493 AGGR_INIT_EXPR. That produces a valid pointer to just past the end of
2494 the operand array, even if it's not valid to dereference it. */
2495 #define AGGR_INIT_EXPR_ARGP(NODE) \
2496 (&(TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 0)) + 3)
2498 /* Abstract iterators for AGGR_INIT_EXPRs. */
2500 /* Structure containing iterator state. */
2501 typedef struct aggr_init_expr_arg_iterator_d GTY (())
2503 tree t; /* the aggr_init_expr */
2504 int n; /* argument count */
2505 int i; /* next argument index */
2506 } aggr_init_expr_arg_iterator;
2508 /* Initialize the abstract argument list iterator object ITER with the
2509 arguments from AGGR_INIT_EXPR node EXP. */
2511 init_aggr_init_expr_arg_iterator (tree exp,
2512 aggr_init_expr_arg_iterator *iter)
2515 iter->n = aggr_init_expr_nargs (exp);
2519 /* Return the next argument from abstract argument list iterator object ITER,
2520 and advance its state. Return NULL_TREE if there are no more arguments. */
2522 next_aggr_init_expr_arg (aggr_init_expr_arg_iterator *iter)
2525 if (iter->i >= iter->n)
2527 result = AGGR_INIT_EXPR_ARG (iter->t, iter->i);
2532 /* Initialize the abstract argument list iterator object ITER, then advance
2533 past and return the first argument. Useful in for expressions, e.g.
2534 for (arg = first_aggr_init_expr_arg (exp, &iter); arg;
2535 arg = next_aggr_init_expr_arg (&iter)) */
2537 first_aggr_init_expr_arg (tree exp, aggr_init_expr_arg_iterator *iter)
2539 init_aggr_init_expr_arg_iterator (exp, iter);
2540 return next_aggr_init_expr_arg (iter);
2543 /* Test whether there are more arguments in abstract argument list iterator
2544 ITER, without changing its state. */
2546 more_aggr_init_expr_args_p (const aggr_init_expr_arg_iterator *iter)
2548 return (iter->i < iter->n);
2551 /* Iterate through each argument ARG of AGGR_INIT_EXPR CALL, using variable
2552 ITER (of type aggr_init_expr_arg_iterator) to hold the iteration state. */
2553 #define FOR_EACH_AGGR_INIT_EXPR_ARG(arg, iter, call) \
2554 for ((arg) = first_aggr_init_expr_arg ((call), &(iter)); (arg); \
2555 (arg) = next_aggr_init_expr_arg (&(iter)))
2557 /* The TYPE_MAIN_DECL for a class template type is a TYPE_DECL, not a
2558 TEMPLATE_DECL. This macro determines whether or not a given class
2559 type is really a template type, as opposed to an instantiation or
2560 specialization of one. */
2561 #define CLASSTYPE_IS_TEMPLATE(NODE) \
2562 (CLASSTYPE_TEMPLATE_INFO (NODE) \
2563 && !CLASSTYPE_USE_TEMPLATE (NODE) \
2564 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE)))
2566 /* The name used by the user to name the typename type. Typically,
2567 this is an IDENTIFIER_NODE, and the same as the DECL_NAME on the
2568 corresponding TYPE_DECL. However, this may also be a
2569 TEMPLATE_ID_EXPR if we had something like `typename X::Y<T>'. */
2570 #define TYPENAME_TYPE_FULLNAME(NODE) (TYPENAME_TYPE_CHECK (NODE))->type.values
2572 /* True if a TYPENAME_TYPE was declared as an "enum". */
2573 #define TYPENAME_IS_ENUM_P(NODE) \
2574 (TREE_LANG_FLAG_0 (TYPENAME_TYPE_CHECK (NODE)))
2576 /* True if a TYPENAME_TYPE was declared as a "class", "struct", or
2578 #define TYPENAME_IS_CLASS_P(NODE) \
2579 (TREE_LANG_FLAG_1 (TYPENAME_TYPE_CHECK (NODE)))
2581 /* Nonzero in INTEGER_CST means that this int is negative by dint of
2582 using a twos-complement negated operand. */
2583 #define TREE_NEGATED_INT(NODE) TREE_LANG_FLAG_0 (INTEGER_CST_CHECK (NODE))
2587 A class that declares or inherits a virtual function is called a
2588 polymorphic class. */
2589 #define TYPE_POLYMORPHIC_P(NODE) (TREE_LANG_FLAG_2 (NODE))
2591 /* Nonzero if this class has a virtual function table pointer. */
2592 #define TYPE_CONTAINS_VPTR_P(NODE) \
2593 (TYPE_POLYMORPHIC_P (NODE) || CLASSTYPE_VBASECLASSES (NODE))
2595 /* This flag is true of a local VAR_DECL if it was declared in a for
2596 statement, but we are no longer in the scope of the for. */
2597 #define DECL_DEAD_FOR_LOCAL(NODE) DECL_LANG_FLAG_7 (VAR_DECL_CHECK (NODE))
2599 /* This flag is set on a VAR_DECL that is a DECL_DEAD_FOR_LOCAL
2600 if we already emitted a warning about using it. */
2601 #define DECL_ERROR_REPORTED(NODE) DECL_LANG_FLAG_0 (VAR_DECL_CHECK (NODE))
2603 /* Nonzero if NODE is a FUNCTION_DECL (for a function with global
2604 scope) declared in a local scope. */
2605 #define DECL_LOCAL_FUNCTION_P(NODE) \
2606 DECL_LANG_FLAG_0 (FUNCTION_DECL_CHECK (NODE))
2608 /* Nonzero if NODE is a DECL which we know about but which has not
2609 been explicitly declared, such as a built-in function or a friend
2610 declared inside a class. In the latter case DECL_HIDDEN_FRIEND_P
2612 #define DECL_ANTICIPATED(NODE) \
2613 (DECL_LANG_SPECIFIC (DECL_COMMON_CHECK (NODE))->decl_flags.anticipated_p)
2615 /* Nonzero if NODE is a FUNCTION_DECL which was declared as a friend
2616 within a class but has not been declared in the surrounding scope.
2617 The function is invisible except via argument dependent lookup. */
2618 #define DECL_HIDDEN_FRIEND_P(NODE) \
2619 (DECL_LANG_SPECIFIC (DECL_COMMON_CHECK (NODE))->decl_flags.hidden_friend_p)
2621 /* Nonzero if DECL has been declared threadprivate by
2622 #pragma omp threadprivate. */
2623 #define CP_DECL_THREADPRIVATE_P(DECL) \
2624 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (DECL))->decl_flags.threadprivate_p)
2626 /* Record whether a typedef for type `int' was actually `signed int'. */
2627 #define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP)
2629 /* Returns nonzero if DECL has external linkage, as specified by the
2630 language standard. (This predicate may hold even when the
2631 corresponding entity is not actually given external linkage in the
2632 object file; see decl_linkage for details.) */
2633 #define DECL_EXTERNAL_LINKAGE_P(DECL) \
2634 (decl_linkage (DECL) == lk_external)
2636 /* Keep these codes in ascending code order. */
2638 #define INTEGRAL_CODE_P(CODE) \
2639 ((CODE) == ENUMERAL_TYPE \
2640 || (CODE) == BOOLEAN_TYPE \
2641 || (CODE) == INTEGER_TYPE)
2643 /* [basic.fundamental]
2645 Types bool, char, wchar_t, and the signed and unsigned integer types
2646 are collectively called integral types.
2648 Note that INTEGRAL_TYPE_P, as defined in tree.h, allows enumeration
2649 types as well, which is incorrect in C++. Keep these checks in
2650 ascending code order. */
2651 #define CP_INTEGRAL_TYPE_P(TYPE) \
2652 (TREE_CODE (TYPE) == BOOLEAN_TYPE \
2653 || TREE_CODE (TYPE) == INTEGER_TYPE)
2655 /* Returns true if TYPE is an integral or enumeration name. Keep
2656 these checks in ascending code order. */
2657 #define INTEGRAL_OR_ENUMERATION_TYPE_P(TYPE) \
2658 (TREE_CODE (TYPE) == ENUMERAL_TYPE || CP_INTEGRAL_TYPE_P (TYPE))
2660 /* [basic.fundamental]
2662 Integral and floating types are collectively called arithmetic
2663 types. Keep these checks in ascending code order. */
2664 #define ARITHMETIC_TYPE_P(TYPE) \
2665 (CP_INTEGRAL_TYPE_P (TYPE) || TREE_CODE (TYPE) == REAL_TYPE)
2669 Arithmetic types, enumeration types, pointer types, and
2670 pointer-to-member types, are collectively called scalar types.
2671 Keep these checks in ascending code order. */
2672 #define SCALAR_TYPE_P(TYPE) \
2673 (TYPE_PTRMEM_P (TYPE) \
2674 || TREE_CODE (TYPE) == ENUMERAL_TYPE \
2675 || ARITHMETIC_TYPE_P (TYPE) \
2676 || TYPE_PTR_P (TYPE) \
2677 || TYPE_PTRMEMFUNC_P (TYPE))
2681 An aggregate is an array or a class with no user-declared
2682 constructors, no private or protected non-static data members, no
2683 base classes, and no virtual functions.
2685 As an extension, we also treat vectors as aggregates. Keep these
2686 checks in ascending code order. */
2687 #define CP_AGGREGATE_TYPE_P(TYPE) \
2688 (TREE_CODE (TYPE) == VECTOR_TYPE \
2689 ||TREE_CODE (TYPE) == ARRAY_TYPE \
2690 || (CLASS_TYPE_P (TYPE) && !CLASSTYPE_NON_AGGREGATE (TYPE)))
2692 /* Nonzero for a class type means that the class type has a
2693 user-declared constructor. */
2694 #define TYPE_HAS_CONSTRUCTOR(NODE) (TYPE_LANG_FLAG_1 (NODE))
2696 /* When appearing in an INDIRECT_REF, it means that the tree structure
2697 underneath is actually a call to a constructor. This is needed
2698 when the constructor must initialize local storage (which can
2699 be automatically destroyed), rather than allowing it to allocate
2700 space from the heap.
2702 When appearing in a SAVE_EXPR, it means that underneath
2703 is a call to a constructor.
2705 When appearing in a CONSTRUCTOR, the expression is a
2708 When appearing in a FIELD_DECL, it means that this field
2709 has been duly initialized in its constructor. */
2710 #define TREE_HAS_CONSTRUCTOR(NODE) (TREE_LANG_FLAG_4 (NODE))
2712 /* True if NODE is a brace-enclosed initializer. */
2713 #define BRACE_ENCLOSED_INITIALIZER_P(NODE) \
2714 (TREE_CODE (NODE) == CONSTRUCTOR && !TREE_TYPE (NODE))
2716 /* True if NODE is a compound-literal, i.e., a brace-enclosed
2717 initializer cast to a particular type. */
2718 #define COMPOUND_LITERAL_P(NODE) \
2719 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_HAS_CONSTRUCTOR (NODE))
2721 #define EMPTY_CONSTRUCTOR_P(NODE) (TREE_CODE (NODE) == CONSTRUCTOR \
2722 && VEC_empty (constructor_elt, \
2723 CONSTRUCTOR_ELTS (NODE)) \
2724 && !TREE_HAS_CONSTRUCTOR (NODE))
2726 /* Nonzero means that an object of this type can not be initialized using
2727 an initializer list. */
2728 #define CLASSTYPE_NON_AGGREGATE(NODE) \
2729 (LANG_TYPE_CLASS_CHECK (NODE)->non_aggregate)
2730 #define TYPE_NON_AGGREGATE_CLASS(NODE) \
2731 (IS_AGGR_TYPE (NODE) && CLASSTYPE_NON_AGGREGATE (NODE))
2733 /* Nonzero if there is a user-defined X::op=(x&) for this class. */
2734 #define TYPE_HAS_COMPLEX_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_assign_ref)
2736 /* Nonzero if there is a user-defined X::X(x&) for this class. */
2737 #define TYPE_HAS_COMPLEX_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_init_ref)
2739 /* Nonzero if there is a user-defined default constructor for this class. */
2740 #define TYPE_HAS_COMPLEX_DFLT(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_dflt)
2742 /* Nonzero if TYPE has a trivial destructor. From [class.dtor]:
2744 A destructor is trivial if it is an implicitly declared
2747 - all of the direct base classes of its class have trivial
2750 - for all of the non-static data members of its class that are
2751 of class type (or array thereof), each such class has a
2752 trivial destructor. */
2753 #define TYPE_HAS_TRIVIAL_DESTRUCTOR(NODE) \
2754 (!TYPE_HAS_NONTRIVIAL_DESTRUCTOR (NODE))
2756 /* Nonzero for _TYPE node means that this type does not have a trivial
2757 destructor. Therefore, destroying an object of this type will
2758 involve a call to a destructor. This can apply to objects of
2759 ARRAY_TYPE is the type of the elements needs a destructor. */
2760 #define TYPE_HAS_NONTRIVIAL_DESTRUCTOR(NODE) \
2761 (TYPE_LANG_FLAG_4 (NODE))
2763 /* Nonzero for class type means that the default constructor is trivial. */
2764 #define TYPE_HAS_TRIVIAL_DFLT(NODE) \
2765 (TYPE_HAS_DEFAULT_CONSTRUCTOR (NODE) && ! TYPE_HAS_COMPLEX_DFLT (NODE))
2767 /* Nonzero for class type means that copy initialization of this type can use
2769 #define TYPE_HAS_TRIVIAL_INIT_REF(NODE) \
2770 (TYPE_HAS_INIT_REF (NODE) && ! TYPE_HAS_COMPLEX_INIT_REF (NODE))
2772 /* Nonzero for class type means that assignment of this type can use
2774 #define TYPE_HAS_TRIVIAL_ASSIGN_REF(NODE) \
2775 (TYPE_HAS_ASSIGN_REF (NODE) && ! TYPE_HAS_COMPLEX_ASSIGN_REF (NODE))
2777 /* Returns true if NODE is a pointer-to-data-member. */
2778 #define TYPE_PTRMEM_P(NODE) \
2779 (TREE_CODE (NODE) == OFFSET_TYPE)
2780 /* Returns true if NODE is a pointer. */
2781 #define TYPE_PTR_P(NODE) \
2782 (TREE_CODE (NODE) == POINTER_TYPE)
2784 /* Returns true if NODE is an object type:
2788 An object type is a (possibly cv-qualified) type that is not a
2789 function type, not a reference type, and not a void type.
2791 Keep these checks in ascending order, for speed. */
2792 #define TYPE_OBJ_P(NODE) \
2793 (TREE_CODE (NODE) != REFERENCE_TYPE \
2794 && TREE_CODE (NODE) != VOID_TYPE \
2795 && TREE_CODE (NODE) != FUNCTION_TYPE \
2796 && TREE_CODE (NODE) != METHOD_TYPE)
2798 /* Returns true if NODE is a pointer to an object. Keep these checks
2799 in ascending tree code order. */
2800 #define TYPE_PTROB_P(NODE) \
2801 (TYPE_PTR_P (NODE) && TYPE_OBJ_P (TREE_TYPE (NODE)))
2803 /* Returns true if NODE is a reference to an object. Keep these checks
2804 in ascending tree code order. */
2805 #define TYPE_REF_OBJ_P(NODE) \
2806 (TREE_CODE (NODE) == REFERENCE_TYPE && TYPE_OBJ_P (TREE_TYPE (NODE)))
2808 /* Returns true if NODE is a pointer to an object, or a pointer to
2809 void. Keep these checks in ascending tree code order. */
2810 #define TYPE_PTROBV_P(NODE) \
2811 (TYPE_PTR_P (NODE) \
2812 && !(TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE \
2813 || TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE))
2815 /* Returns true if NODE is a pointer to function. */
2816 #define TYPE_PTRFN_P(NODE) \
2817 (TREE_CODE (NODE) == POINTER_TYPE \
2818 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
2820 /* Returns true if NODE is a reference to function. */
2821 #define TYPE_REFFN_P(NODE) \
2822 (TREE_CODE (NODE) == REFERENCE_TYPE \
2823 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
2825 /* Nonzero for _TYPE node means that this type is a pointer to member
2827 #define TYPE_PTRMEMFUNC_P(NODE) \
2828 (TREE_CODE (NODE) == RECORD_TYPE \
2829 && TYPE_LANG_SPECIFIC (NODE) \
2830 && TYPE_PTRMEMFUNC_FLAG (NODE))
2832 #define TYPE_PTRMEMFUNC_FLAG(NODE) \
2833 (LANG_TYPE_CLASS_CHECK (NODE)->ptrmemfunc_flag)
2835 /* Returns true if NODE is a pointer-to-member. */
2836 #define TYPE_PTR_TO_MEMBER_P(NODE) \
2837 (TYPE_PTRMEM_P (NODE) || TYPE_PTRMEMFUNC_P (NODE))
2839 /* Indicates when overload resolution may resolve to a pointer to
2840 member function. [expr.unary.op]/3 */
2841 #define PTRMEM_OK_P(NODE) \
2842 TREE_LANG_FLAG_0 (TREE_CHECK2 ((NODE), ADDR_EXPR, OFFSET_REF))
2844 /* Get the POINTER_TYPE to the METHOD_TYPE associated with this
2845 pointer to member function. TYPE_PTRMEMFUNC_P _must_ be true,
2846 before using this macro. */
2847 #define TYPE_PTRMEMFUNC_FN_TYPE(NODE) \
2848 (TREE_TYPE (TYPE_FIELDS (NODE)))
2850 /* Returns `A' for a type like `int (A::*)(double)' */
2851 #define TYPE_PTRMEMFUNC_OBJECT_TYPE(NODE) \
2852 TYPE_METHOD_BASETYPE (TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
2854 /* These are use to manipulate the canonical RECORD_TYPE from the
2855 hashed POINTER_TYPE, and can only be used on the POINTER_TYPE. */
2856 #define TYPE_GET_PTRMEMFUNC_TYPE(NODE) \
2857 (TYPE_LANG_SPECIFIC (NODE) ? LANG_TYPE_PTRMEM_CHECK (NODE)->record : NULL)
2858 #define TYPE_SET_PTRMEMFUNC_TYPE(NODE, VALUE) \
2860 if (TYPE_LANG_SPECIFIC (NODE) == NULL) \
2862 TYPE_LANG_SPECIFIC (NODE) = GGC_CNEWVAR \
2863 (struct lang_type, sizeof (struct lang_type_ptrmem)); \
2864 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.h.is_lang_type_class = 0; \
2866 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.record = (VALUE); \
2869 /* For a pointer-to-member type of the form `T X::*', this is `X'.
2870 For a type like `void (X::*)() const', this type is `X', not `const
2871 X'. To get at the `const X' you have to look at the
2872 TYPE_PTRMEM_POINTED_TO_TYPE; there, the first parameter will have
2874 #define TYPE_PTRMEM_CLASS_TYPE(NODE) \
2875 (TYPE_PTRMEM_P (NODE) \
2876 ? TYPE_OFFSET_BASETYPE (NODE) \
2877 : TYPE_PTRMEMFUNC_OBJECT_TYPE (NODE))
2879 /* For a pointer-to-member type of the form `T X::*', this is `T'. */
2880 #define TYPE_PTRMEM_POINTED_TO_TYPE(NODE) \
2881 (TYPE_PTRMEM_P (NODE) \
2882 ? TREE_TYPE (NODE) \
2883 : TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
2885 /* For a pointer-to-member constant `X::Y' this is the RECORD_TYPE for
2887 #define PTRMEM_CST_CLASS(NODE) \
2888 TYPE_PTRMEM_CLASS_TYPE (TREE_TYPE (PTRMEM_CST_CHECK (NODE)))
2890 /* For a pointer-to-member constant `X::Y' this is the _DECL for
2892 #define PTRMEM_CST_MEMBER(NODE) (((ptrmem_cst_t)PTRMEM_CST_CHECK (NODE))->member)
2894 /* The expression in question for a TYPEOF_TYPE. */
2895 #define TYPEOF_TYPE_EXPR(NODE) (TYPEOF_TYPE_CHECK (NODE))->type.values
2897 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `extern' was
2898 specified in its declaration. This can also be set for an
2899 erroneously declared PARM_DECL. */
2900 #define DECL_THIS_EXTERN(NODE) \
2901 DECL_LANG_FLAG_2 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
2903 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `static' was
2904 specified in its declaration. This can also be set for an
2905 erroneously declared PARM_DECL. */
2906 #define DECL_THIS_STATIC(NODE) \
2907 DECL_LANG_FLAG_6 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
2909 /* Nonzero for FIELD_DECL node means that this field is a base class
2910 of the parent object, as opposed to a member field. */
2911 #define DECL_FIELD_IS_BASE(NODE) \
2912 DECL_LANG_FLAG_6 (FIELD_DECL_CHECK (NODE))
2914 /* Nonzero if TYPE is an anonymous union or struct type. We have to use a
2915 flag for this because "A union for which objects or pointers are
2916 declared is not an anonymous union" [class.union]. */
2917 #define ANON_AGGR_TYPE_P(NODE) \
2918 (CLASS_TYPE_P (NODE) && LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr)
2919 #define SET_ANON_AGGR_TYPE_P(NODE) \
2920 (LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr = 1)
2922 /* Nonzero if TYPE is an anonymous union type. */
2923 #define ANON_UNION_TYPE_P(NODE) \
2924 (TREE_CODE (NODE) == UNION_TYPE && ANON_AGGR_TYPE_P (NODE))
2926 #define UNKNOWN_TYPE LANG_TYPE
2928 /* Define fields and accessors for nodes representing declared names. */
2930 #define TYPE_WAS_ANONYMOUS(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->was_anonymous)
2932 /* C++: all of these are overloaded! These apply only to TYPE_DECLs. */
2934 /* The format of each node in the DECL_FRIENDLIST is as follows:
2936 The TREE_PURPOSE will be the name of a function, i.e., an
2937 IDENTIFIER_NODE. The TREE_VALUE will be itself a TREE_LIST, whose
2938 TREE_VALUEs are friends with the given name. */
2939 #define DECL_FRIENDLIST(NODE) (DECL_INITIAL (NODE))
2940 #define FRIEND_NAME(LIST) (TREE_PURPOSE (LIST))
2941 #define FRIEND_DECLS(LIST) (TREE_VALUE (LIST))
2943 /* The DECL_ACCESS, if non-NULL, is a TREE_LIST. The TREE_PURPOSE of
2944 each node is a type; the TREE_VALUE is the access granted for this
2945 DECL in that type. The DECL_ACCESS is set by access declarations.
2946 For example, if a member that would normally be public in a
2947 derived class is made protected, then the derived class and the
2948 protected_access_node will appear in the DECL_ACCESS for the node. */
2949 #define DECL_ACCESS(NODE) (LANG_DECL_U2_CHECK (NODE, 0)->access)
2951 /* Nonzero if the FUNCTION_DECL is a global constructor. */
2952 #define DECL_GLOBAL_CTOR_P(NODE) \
2953 (DECL_LANG_SPECIFIC (NODE)->decl_flags.global_ctor_p)
2955 /* Nonzero if the FUNCTION_DECL is a global destructor. */
2956 #define DECL_GLOBAL_DTOR_P(NODE) \
2957 (DECL_LANG_SPECIFIC (NODE)->decl_flags.global_dtor_p)
2959 /* Accessor macros for C++ template decl nodes. */
2961 /* The DECL_TEMPLATE_PARMS are a list. The TREE_PURPOSE of each node
2962 is a INT_CST whose TREE_INT_CST_LOW indicates the level of the
2963 template parameters, with 1 being the outermost set of template
2964 parameters. The TREE_VALUE is a vector, whose elements are the
2965 template parameters at each level. Each element in the vector is a
2966 TREE_LIST, whose TREE_VALUE is a PARM_DECL (if the parameter is a
2967 non-type parameter), or a TYPE_DECL (if the parameter is a type
2968 parameter). The TREE_PURPOSE is the default value, if any. The
2969 TEMPLATE_PARM_INDEX for the parameter is available as the
2970 DECL_INITIAL (for a PARM_DECL) or as the TREE_TYPE (for a
2972 #define DECL_TEMPLATE_PARMS(NODE) DECL_NON_COMMON_CHECK (NODE)->decl_non_common.arguments
2973 #define DECL_INNERMOST_TEMPLATE_PARMS(NODE) \
2974 INNERMOST_TEMPLATE_PARMS (DECL_TEMPLATE_PARMS (NODE))
2975 #define DECL_NTPARMS(NODE) \
2976 TREE_VEC_LENGTH (DECL_INNERMOST_TEMPLATE_PARMS (NODE))
2977 /* For function, method, class-data templates. */
2978 #define DECL_TEMPLATE_RESULT(NODE) DECL_RESULT_FLD (NODE)
2979 /* For a static member variable template, the
2980 DECL_TEMPLATE_INSTANTIATIONS list contains the explicitly and
2981 implicitly generated instantiations of the variable. There are no
2982 partial instantiations of static member variables, so all of these
2983 will be full instantiations.
2985 For a class template the DECL_TEMPLATE_INSTANTIATIONS lists holds
2986 all instantiations and specializations of the class type, including
2987 partial instantiations and partial specializations.
2989 In both cases, the TREE_PURPOSE of each node contains the arguments
2990 used; the TREE_VALUE contains the generated variable. The template
2991 arguments are always complete. For example, given:
2993 template <class T> struct S1 {
2994 template <class U> struct S2 {};
2995 template <class U> struct S2<U*> {};
2998 the record for the partial specialization will contain, as its
2999 argument list, { {T}, {U*} }, and will be on the
3000 DECL_TEMPLATE_INSTANTIATIONS list for `template <class T> template
3001 <class U> struct S1<T>::S2'.
3003 This list is not used for function templates. */
3004 #define DECL_TEMPLATE_INSTANTIATIONS(NODE) DECL_VINDEX (NODE)
3005 /* For a function template, the DECL_TEMPLATE_SPECIALIZATIONS lists
3006 contains all instantiations and specializations of the function,
3007 including partial instantiations. For a partial instantiation
3008 which is a specialization, this list holds only full
3009 specializations of the template that are instantiations of the
3010 partial instantiation. For example, given:
3012 template <class T> struct S {
3013 template <class U> void f(U);
3014 template <> void f(T);
3017 the `S<int>::f<int>(int)' function will appear on the
3018 DECL_TEMPLATE_SPECIALIZATIONS list for both `template <class T>
3019 template <class U> void S<T>::f(U)' and `template <class T> void
3020 S<int>::f(T)'. In the latter case, however, it will have only the
3021 innermost set of arguments (T, in this case). The DECL_TI_TEMPLATE
3022 for the function declaration will point at the specialization, not
3023 the fully general template.
3025 For a class template, this list contains the partial
3026 specializations of this template. (Full specializations are not
3027 recorded on this list.) The TREE_PURPOSE holds the arguments used
3028 in the partial specialization (e.g., for `template <class T> struct
3029 S<T*, int>' this will be `T*'.) The arguments will also include
3030 any outer template arguments. The TREE_VALUE holds the innermost
3031 template parameters for the specialization (e.g., `T' in the
3032 example above.) The TREE_TYPE is the _TYPE node for the partial
3035 This list is not used for static variable templates. */
3036 #define DECL_TEMPLATE_SPECIALIZATIONS(NODE) DECL_SIZE (NODE)
3038 /* Nonzero for a DECL which is actually a template parameter. Keep
3039 these checks in ascending tree code order. */
3040 #define DECL_TEMPLATE_PARM_P(NODE) \
3041 (DECL_LANG_FLAG_0 (NODE) \
3042 && (TREE_CODE (NODE) == CONST_DECL \
3043 || TREE_CODE (NODE) == PARM_DECL \
3044 || TREE_CODE (NODE) == TYPE_DECL \
3045 || TREE_CODE (NODE) == TEMPLATE_DECL))
3047 /* Mark NODE as a template parameter. */
3048 #define SET_DECL_TEMPLATE_PARM_P(NODE) \
3049 (DECL_LANG_FLAG_0 (NODE) = 1)
3051 /* Nonzero if NODE is a template template parameter. */
3052 #define DECL_TEMPLATE_TEMPLATE_PARM_P(NODE) \
3053 (TREE_CODE (NODE) == TEMPLATE_DECL && DECL_TEMPLATE_PARM_P (NODE))
3055 /* Nonzero if NODE is a TEMPLATE_DECL representing an
3056 UNBOUND_CLASS_TEMPLATE tree node. */
3057 #define DECL_UNBOUND_CLASS_TEMPLATE_P(NODE) \
3058 (TREE_CODE (NODE) == TEMPLATE_DECL && !DECL_TEMPLATE_RESULT (NODE))
3060 #define DECL_FUNCTION_TEMPLATE_P(NODE) \
3061 (TREE_CODE (NODE) == TEMPLATE_DECL \
3062 && !DECL_UNBOUND_CLASS_TEMPLATE_P (NODE) \
3063 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == FUNCTION_DECL)
3065 /* Nonzero for a DECL that represents a template class. */
3066 #define DECL_CLASS_TEMPLATE_P(NODE) \
3067 (TREE_CODE (NODE) == TEMPLATE_DECL \
3068 && !DECL_UNBOUND_CLASS_TEMPLATE_P (NODE) \
3069 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == TYPE_DECL \
3070 && !DECL_TEMPLATE_TEMPLATE_PARM_P (NODE))
3072 /* Nonzero if NODE which declares a type. */
3073 #define DECL_DECLARES_TYPE_P(NODE) \
3074 (TREE_CODE (NODE) == TYPE_DECL || DECL_CLASS_TEMPLATE_P (NODE))
3076 /* Nonzero if NODE is the typedef implicitly generated for a type when
3077 the type is declared. In C++, `struct S {};' is roughly
3078 equivalent to `struct S {}; typedef struct S S;' in C.
3079 DECL_IMPLICIT_TYPEDEF_P will hold for the typedef indicated in this
3080 example. In C++, there is a second implicit typedef for each
3081 class, in the scope of `S' itself, so that you can say `S::S'.
3082 DECL_SELF_REFERENCE_P will hold for that second typedef. */
3083 #define DECL_IMPLICIT_TYPEDEF_P(NODE) \
3084 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_2 (NODE))
3085 #define SET_DECL_IMPLICIT_TYPEDEF_P(NODE) \
3086 (DECL_LANG_FLAG_2 (NODE) = 1)
3087 #define DECL_SELF_REFERENCE_P(NODE) \
3088 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_4 (NODE))
3089 #define SET_DECL_SELF_REFERENCE_P(NODE) \
3090 (DECL_LANG_FLAG_4 (NODE) = 1)
3092 /* A `primary' template is one that has its own template header. A
3093 member function of a class template is a template, but not primary.
3094 A member template is primary. Friend templates are primary, too. */
3096 /* Returns the primary template corresponding to these parameters. */
3097 #define DECL_PRIMARY_TEMPLATE(NODE) \
3098 (TREE_TYPE (DECL_INNERMOST_TEMPLATE_PARMS (NODE)))
3100 /* Returns nonzero if NODE is a primary template. */
3101 #define PRIMARY_TEMPLATE_P(NODE) (DECL_PRIMARY_TEMPLATE (NODE) == (NODE))
3103 /* Nonzero iff NODE is a specialization of a template. The value
3104 indicates the type of specializations:
3106 1=implicit instantiation
3108 2=partial or explicit specialization, e.g.:
3110 template <> int min<int> (int, int),
3112 3=explicit instantiation, e.g.:
3114 template int min<int> (int, int);
3116 Note that NODE will be marked as a specialization even if the
3117 template it is instantiating is not a primary template. For
3120 template <typename T> struct O {
3125 both O<int>::f and O<int>::I will be marked as instantiations.
3127 If DECL_USE_TEMPLATE is nonzero, then DECL_TEMPLATE_INFO will also
3129 #define DECL_USE_TEMPLATE(NODE) (DECL_LANG_SPECIFIC (NODE)->decl_flags.use_template)
3131 /* Like DECL_USE_TEMPLATE, but for class types. */
3132 #define CLASSTYPE_USE_TEMPLATE(NODE) \
3133 (LANG_TYPE_CLASS_CHECK (NODE)->use_template)
3135 /* True if NODE is a specialization of a primary template. */
3136 #define CLASSTYPE_SPECIALIZATION_OF_PRIMARY_TEMPLATE_P(NODE) \
3137 (CLASS_TYPE_P (NODE) \
3138 && CLASSTYPE_USE_TEMPLATE (NODE) \
3139 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (arg)))
3141 #define DECL_TEMPLATE_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) & 1)
3142 #define CLASSTYPE_TEMPLATE_INSTANTIATION(NODE) \
3143 (CLASSTYPE_USE_TEMPLATE (NODE) & 1)
3145 #define DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) == 2)
3146 #define SET_DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) = 2)
3148 /* Returns true for an explicit or partial specialization of a class
3150 #define CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
3151 (CLASSTYPE_USE_TEMPLATE (NODE) == 2)
3152 #define SET_CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
3153 (CLASSTYPE_USE_TEMPLATE (NODE) = 2)
3155 #define DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 1)
3156 #define SET_DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 1)
3157 #define CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
3158 (CLASSTYPE_USE_TEMPLATE (NODE) == 1)
3159 #define SET_CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
3160 (CLASSTYPE_USE_TEMPLATE (NODE) = 1)
3162 #define DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 3)
3163 #define SET_DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 3)
3164 #define CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
3165 (CLASSTYPE_USE_TEMPLATE (NODE) == 3)
3166 #define SET_CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
3167 (CLASSTYPE_USE_TEMPLATE (NODE) = 3)
3169 /* Nonzero if DECL is a friend function which is an instantiation
3170 from the point of view of the compiler, but not from the point of
3171 view of the language. For example given:
3172 template <class T> struct S { friend void f(T) {}; };
3173 the declaration of `void f(int)' generated when S<int> is
3174 instantiated will not be a DECL_TEMPLATE_INSTANTIATION, but will be
3175 a DECL_FRIEND_PSUEDO_TEMPLATE_INSTANTIATION. */
3176 #define DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION(DECL) \
3177 (DECL_TEMPLATE_INFO (DECL) && !DECL_USE_TEMPLATE (DECL))
3179 /* Nonzero iff we are currently processing a declaration for an
3180 entity with its own template parameter list, and which is not a
3181 full specialization. */
3182 #define PROCESSING_REAL_TEMPLATE_DECL_P() \
3183 (processing_template_decl > template_class_depth (current_scope ()))
3185 /* Nonzero if this VAR_DECL or FUNCTION_DECL has already been
3186 instantiated, i.e. its definition has been generated from the
3187 pattern given in the template. */
3188 #define DECL_TEMPLATE_INSTANTIATED(NODE) \
3189 DECL_LANG_FLAG_1 (VAR_OR_FUNCTION_DECL_CHECK (NODE))
3191 /* We know what we're doing with this decl now. */
3192 #define DECL_INTERFACE_KNOWN(NODE) DECL_LANG_FLAG_5 (NODE)
3194 /* DECL_EXTERNAL must be set on a decl until the decl is actually emitted,
3195 so that assemble_external will work properly. So we have this flag to
3196 tell us whether the decl is really not external. */
3197 #define DECL_NOT_REALLY_EXTERN(NODE) \
3198 (DECL_LANG_SPECIFIC (NODE)->decl_flags.not_really_extern)
3200 #define DECL_REALLY_EXTERN(NODE) \
3201 (DECL_EXTERNAL (NODE) && ! DECL_NOT_REALLY_EXTERN (NODE))
3203 /* A thunk is a stub function.
3205 A thunk is an alternate entry point for an ordinary FUNCTION_DECL.
3206 The address of the ordinary FUNCTION_DECL is given by the
3207 DECL_INITIAL, which is always an ADDR_EXPR whose operand is a
3208 FUNCTION_DECL. The job of the thunk is to either adjust the this
3209 pointer before transferring control to the FUNCTION_DECL, or call
3210 FUNCTION_DECL and then adjust the result value. Note, the result
3211 pointer adjusting thunk must perform a call to the thunked
3212 function, (or be implemented via passing some invisible parameter
3213 to the thunked function, which is modified to perform the
3214 adjustment just before returning).
3216 A thunk may perform either, or both, of the following operations:
3218 o Adjust the this or result pointer by a constant offset.
3219 o Adjust the this or result pointer by looking up a vcall or vbase offset
3222 A this pointer adjusting thunk converts from a base to a derived
3223 class, and hence adds the offsets. A result pointer adjusting thunk
3224 converts from a derived class to a base, and hence subtracts the
3225 offsets. If both operations are performed, then the constant
3226 adjustment is performed first for this pointer adjustment and last
3227 for the result pointer adjustment.
3229 The constant adjustment is given by THUNK_FIXED_OFFSET. If the
3230 vcall or vbase offset is required, THUNK_VIRTUAL_OFFSET is
3231 used. For this pointer adjusting thunks, it is the vcall offset
3232 into the vtable. For result pointer adjusting thunks it is the
3233 binfo of the virtual base to convert to. Use that binfo's vbase
3236 It is possible to have equivalent covariant thunks. These are
3237 distinct virtual covariant thunks whose vbase offsets happen to
3238 have the same value. THUNK_ALIAS is used to pick one as the
3239 canonical thunk, which will get all the this pointer adjusting
3240 thunks attached to it. */
3242 /* An integer indicating how many bytes should be subtracted from the
3243 this or result pointer when this function is called. */
3244 #define THUNK_FIXED_OFFSET(DECL) \
3245 (DECL_LANG_SPECIFIC (THUNK_FUNCTION_CHECK (DECL))->u.f.u5.fixed_offset)
3247 /* A tree indicating how to perform the virtual adjustment. For a this
3248 adjusting thunk it is the number of bytes to be added to the vtable
3249 to find the vcall offset. For a result adjusting thunk, it is the
3250 binfo of the relevant virtual base. If NULL, then there is no
3251 virtual adjust. (The vptr is always located at offset zero from
3252 the this or result pointer.) (If the covariant type is within the
3253 class hierarchy being laid out, the vbase index is not yet known
3254 at the point we need to create the thunks, hence the need to use
3257 #define THUNK_VIRTUAL_OFFSET(DECL) \
3258 (LANG_DECL_U2_CHECK (FUNCTION_DECL_CHECK (DECL), 0)->access)
3260 /* A thunk which is equivalent to another thunk. */
3261 #define THUNK_ALIAS(DECL) \
3262 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->decl_flags.u.template_info)
3264 /* For thunk NODE, this is the FUNCTION_DECL thunked to. It is
3265 possible for the target to be a thunk too. */
3266 #define THUNK_TARGET(NODE) \
3267 (DECL_LANG_SPECIFIC (NODE)->u.f.befriending_classes)
3269 /* True for a SCOPE_REF iff the "template" keyword was used to
3270 indicate that the qualified name denotes a template. */
3271 #define QUALIFIED_NAME_IS_TEMPLATE(NODE) \
3272 (TREE_LANG_FLAG_0 (SCOPE_REF_CHECK (NODE)))
3274 /* True for an OMP_ATOMIC that has dependent parameters. These are stored
3275 as an expr in operand 1, and integer_zero_node in operand 0. */
3276 #define OMP_ATOMIC_DEPENDENT_P(NODE) \
3277 (TREE_CODE (TREE_OPERAND (OMP_ATOMIC_CHECK (NODE), 0)) == INTEGER_CST)
3279 /* Used while gimplifying continue statements bound to OMP_FOR nodes. */
3280 #define OMP_FOR_GIMPLIFYING_P(NODE) \
3281 (TREE_LANG_FLAG_0 (OMP_FOR_CHECK (NODE)))
3283 /* A language-specific token attached to the OpenMP data clauses to
3284 hold code (or code fragments) related to ctors, dtors, and op=.
3285 See semantics.c for details. */
3286 #define CP_OMP_CLAUSE_INFO(NODE) \
3287 TREE_TYPE (OMP_CLAUSE_RANGE_CHECK (NODE, OMP_CLAUSE_PRIVATE, \
3288 OMP_CLAUSE_COPYPRIVATE))
3290 /* These macros provide convenient access to the various _STMT nodes
3291 created when parsing template declarations. */
3292 #define TRY_STMTS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 0)
3293 #define TRY_HANDLERS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 1)
3295 #define EH_SPEC_STMTS(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 0)
3296 #define EH_SPEC_RAISES(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 1)
3298 #define USING_STMT_NAMESPACE(NODE) TREE_OPERAND (USING_STMT_CHECK (NODE), 0)
3300 /* Nonzero if this try block is a function try block. */
3301 #define FN_TRY_BLOCK_P(NODE) TREE_LANG_FLAG_3 (TRY_BLOCK_CHECK (NODE))
3302 #define HANDLER_PARMS(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 0)
3303 #define HANDLER_BODY(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 1)
3304 #define HANDLER_TYPE(NODE) TREE_TYPE (HANDLER_CHECK (NODE))
3306 /* CLEANUP_STMT accessors. The statement(s) covered, the cleanup to run
3307 and the VAR_DECL for which this cleanup exists. */
3308 #define CLEANUP_BODY(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 0)
3309 #define CLEANUP_EXPR(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 1)
3310 #define CLEANUP_DECL(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 2)
3312 /* IF_STMT accessors. These give access to the condition of the if
3313 statement, the then block of the if statement, and the else block
3314 of the if statement if it exists. */
3315 #define IF_COND(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 0)
3316 #define THEN_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 1)
3317 #define ELSE_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 2)
3319 /* WHILE_STMT accessors. These give access to the condition of the
3320 while statement and the body of the while statement, respectively. */
3321 #define WHILE_COND(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 0)
3322 #define WHILE_BODY(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 1)
3324 /* DO_STMT accessors. These give access to the condition of the do
3325 statement and the body of the do statement, respectively. */
3326 #define DO_COND(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 0)
3327 #define DO_BODY(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 1)
3329 /* FOR_STMT accessors. These give access to the init statement,
3330 condition, update expression, and body of the for statement,
3332 #define FOR_INIT_STMT(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 0)
3333 #define FOR_COND(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 1)
3334 #define FOR_EXPR(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 2)
3335 #define FOR_BODY(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 3)
3337 #define SWITCH_STMT_COND(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 0)
3338 #define SWITCH_STMT_BODY(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 1)
3339 #define SWITCH_STMT_TYPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 2)
3341 /* STMT_EXPR accessor. */
3342 #define STMT_EXPR_STMT(NODE) TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0)
3344 /* EXPR_STMT accessor. This gives the expression associated with an
3345 expression statement. */
3346 #define EXPR_STMT_EXPR(NODE) TREE_OPERAND (EXPR_STMT_CHECK (NODE), 0)
3348 /* True if this TARGET_EXPR was created by build_cplus_new, and so we can
3349 discard it if it isn't useful. */
3350 #define TARGET_EXPR_IMPLICIT_P(NODE) \
3351 TREE_LANG_FLAG_0 (TARGET_EXPR_CHECK (NODE))
3353 /* An enumeration of the kind of tags that C++ accepts. */
3355 none_type = 0, /* Not a tag type. */
3356 record_type, /* "struct" types. */
3357 class_type, /* "class" types. */
3358 union_type, /* "union" types. */
3359 enum_type, /* "enum" types. */
3360 typename_type /* "typename" types. */
3363 /* The various kinds of lvalues we distinguish. */
3364 typedef enum cp_lvalue_kind {
3365 clk_none = 0, /* Things that are not an lvalue. */
3366 clk_ordinary = 1, /* An ordinary lvalue. */
3367 clk_class = 2, /* An rvalue of class-type. */
3368 clk_bitfield = 4, /* An lvalue for a bit-field. */
3369 clk_packed = 8 /* An lvalue for a packed field. */
3372 /* Various kinds of template specialization, instantiation, etc. */
3373 typedef enum tmpl_spec_kind {
3374 tsk_none, /* Not a template at all. */
3375 tsk_invalid_member_spec, /* An explicit member template
3376 specialization, but the enclosing
3377 classes have not all been explicitly
3379 tsk_invalid_expl_inst, /* An explicit instantiation containing
3380 template parameter lists. */
3381 tsk_excessive_parms, /* A template declaration with too many
3382 template parameter lists. */
3383 tsk_insufficient_parms, /* A template declaration with too few
3385 tsk_template, /* A template declaration. */
3386 tsk_expl_spec, /* An explicit specialization. */
3387 tsk_expl_inst /* An explicit instantiation. */
3390 /* The various kinds of access. BINFO_ACCESS depends on these being
3391 two bit quantities. The numerical values are important; they are
3392 used to initialize RTTI data structures, so changing them changes
3394 typedef enum access_kind {
3395 ak_none = 0, /* Inaccessible. */
3396 ak_public = 1, /* Accessible, as a `public' thing. */
3397 ak_protected = 2, /* Accessible, as a `protected' thing. */
3398 ak_private = 3 /* Accessible, as a `private' thing. */
3401 /* The various kinds of special functions. If you add to this list,
3402 you should update special_function_p as well. */
3403 typedef enum special_function_kind {
3404 sfk_none = 0, /* Not a special function. This enumeral
3405 must have value zero; see
3406 special_function_p. */
3407 sfk_constructor, /* A constructor. */
3408 sfk_copy_constructor, /* A copy constructor. */
3409 sfk_assignment_operator, /* An assignment operator. */
3410 sfk_destructor, /* A destructor. */
3411 sfk_complete_destructor, /* A destructor for complete objects. */
3412 sfk_base_destructor, /* A destructor for base subobjects. */
3413 sfk_deleting_destructor, /* A destructor for complete objects that
3414 deletes the object after it has been
3416 sfk_conversion /* A conversion operator. */
3417 } special_function_kind;
3419 /* The various kinds of linkage. From [basic.link],
3421 A name is said to have linkage when it might denote the same
3422 object, reference, function, type, template, namespace or value
3423 as a name introduced in another scope:
3425 -- When a name has external linkage, the entity it denotes can
3426 be referred to from scopes of other translation units or from
3427 other scopes of the same translation unit.
3429 -- When a name has internal linkage, the entity it denotes can
3430 be referred to by names from other scopes in the same
3433 -- When a name has no linkage, the entity it denotes cannot be
3434 referred to by names from other scopes. */
3436 typedef enum linkage_kind {
3437 lk_none, /* No linkage. */
3438 lk_internal, /* Internal linkage. */
3439 lk_external /* External linkage. */
3442 /* Bitmask flags to control type substitution. */
3443 typedef enum tsubst_flags_t {
3444 tf_none = 0, /* nothing special */
3445 tf_error = 1 << 0, /* give error messages */
3446 tf_warning = 1 << 1, /* give warnings too */
3447 tf_ignore_bad_quals = 1 << 2, /* ignore bad cvr qualifiers */
3448 tf_keep_type_decl = 1 << 3, /* retain typedef type decls
3449 (make_typename_type use) */
3450 tf_ptrmem_ok = 1 << 4, /* pointers to member ok (internal
3451 instantiate_type use) */
3452 tf_user = 1 << 5, /* found template must be a user template
3453 (lookup_template_class use) */
3454 tf_conv = 1 << 6, /* We are determining what kind of
3455 conversion might be permissible,
3456 not actually performing the
3458 /* Convenient substitution flags combinations. */
3459 tf_warning_or_error = tf_warning | tf_error
3462 /* The kind of checking we can do looking in a class hierarchy. */
3463 typedef enum base_access {
3464 ba_any = 0, /* Do not check access, allow an ambiguous base,
3465 prefer a non-virtual base */
3466 ba_unique = 1 << 0, /* Must be a unique base. */
3467 ba_check_bit = 1 << 1, /* Check access. */
3468 ba_check = ba_unique | ba_check_bit,
3469 ba_ignore_scope = 1 << 2, /* Ignore access allowed by local scope. */
3470 ba_quiet = 1 << 3 /* Do not issue error messages. */
3473 /* The various kinds of access check during parsing. */
3474 typedef enum deferring_kind {
3475 dk_no_deferred = 0, /* Check access immediately */
3476 dk_deferred = 1, /* Deferred check */
3477 dk_no_check = 2 /* No access check */
3480 /* The kind of base we can find, looking in a class hierarchy.
3481 Values <0 indicate we failed. */
3482 typedef enum base_kind {
3483 bk_inaccessible = -3, /* The base is inaccessible */
3484 bk_ambig = -2, /* The base is ambiguous */
3485 bk_not_base = -1, /* It is not a base */
3486 bk_same_type = 0, /* It is the same type */
3487 bk_proper_base = 1, /* It is a proper base */
3488 bk_via_virtual = 2 /* It is a proper base, but via a virtual
3489 path. This might not be the canonical
3493 /* Node for "pointer to (virtual) function".
3494 This may be distinct from ptr_type_node so gdb can distinguish them. */
3495 #define vfunc_ptr_type_node vtable_entry_type
3498 /* For building calls to `delete'. */
3499 extern GTY(()) tree integer_two_node;
3500 extern GTY(()) tree integer_three_node;
3502 /* The number of function bodies which we are currently processing.
3503 (Zero if we are at namespace scope, one inside the body of a
3504 function, two inside the body of a function in a local class, etc.) */
3505 extern int function_depth;
3509 /* These values are used for the `STRICT' parameter to type_unification and
3510 fn_type_unification. Their meanings are described with the
3511 documentation for fn_type_unification. */
3513 typedef enum unification_kind_t {
3517 } unification_kind_t;
3519 /* Macros for operating on a template instantiation level node. */
3521 #define TINST_DECL(NODE) \
3522 (((tinst_level_t) TINST_LEVEL_CHECK (NODE))->decl)
3523 #define TINST_LOCATION(NODE) \
3524 (((tinst_level_t) TINST_LEVEL_CHECK (NODE))->locus)
3525 #define TINST_IN_SYSTEM_HEADER_P(NODE) \
3526 (((tinst_level_t) TINST_LEVEL_CHECK (NODE))->in_system_header_p)
3530 extern int current_class_depth;
3532 /* An array of all local classes present in this translation unit, in
3533 declaration order. */
3534 extern GTY(()) VEC(tree,gc) *local_classes;
3536 /* Here's where we control how name mangling takes place. */
3538 /* Cannot use '$' up front, because this confuses gdb
3539 (names beginning with '$' are gdb-local identifiers).
3541 Note that all forms in which the '$' is significant are long enough
3542 for direct indexing (meaning that if we know there is a '$'
3543 at a particular location, we can index into the string at
3544 any other location that provides distinguishing characters). */
3546 /* Define NO_DOLLAR_IN_LABEL in your favorite tm file if your assembler
3547 doesn't allow '$' in symbol names. */
3548 #ifndef NO_DOLLAR_IN_LABEL
3552 #define AUTO_TEMP_NAME "_$tmp_"
3553 #define VFIELD_BASE "$vf"
3554 #define VFIELD_NAME "_vptr$"
3555 #define VFIELD_NAME_FORMAT "_vptr$%s"
3556 #define ANON_AGGRNAME_FORMAT "$_%d"
3558 #else /* NO_DOLLAR_IN_LABEL */
3560 #ifndef NO_DOT_IN_LABEL
3564 #define AUTO_TEMP_NAME "_.tmp_"
3565 #define VFIELD_BASE ".vf"
3566 #define VFIELD_NAME "_vptr."
3567 #define VFIELD_NAME_FORMAT "_vptr.%s"
3569 #define ANON_AGGRNAME_FORMAT "._%d"
3571 #else /* NO_DOT_IN_LABEL */
3573 #define IN_CHARGE_NAME "__in_chrg"
3574 #define AUTO_TEMP_NAME "__tmp_"
3575 #define TEMP_NAME_P(ID_NODE) \
3576 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, \
3577 sizeof (AUTO_TEMP_NAME) - 1))
3578 #define VTABLE_NAME "__vt_"
3579 #define VTABLE_NAME_P(ID_NODE) \
3580 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VTABLE_NAME, \
3581 sizeof (VTABLE_NAME) - 1))
3582 #define VFIELD_BASE "__vfb"
3583 #define VFIELD_NAME "__vptr_"
3584 #define VFIELD_NAME_P(ID_NODE) \
3585 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, \
3586 sizeof (VFIELD_NAME) - 1))
3587 #define VFIELD_NAME_FORMAT "__vptr_%s"
3589 #define ANON_AGGRNAME_PREFIX "__anon_"
3590 #define ANON_AGGRNAME_P(ID_NODE) \
3591 (!strncmp (IDENTIFIER_POINTER (ID_NODE), ANON_AGGRNAME_PREFIX, \
3592 sizeof (ANON_AGGRNAME_PREFIX) - 1))
3593 #define ANON_AGGRNAME_FORMAT "__anon_%d"
3595 #endif /* NO_DOT_IN_LABEL */
3596 #endif /* NO_DOLLAR_IN_LABEL */
3598 #define THIS_NAME "this"
3600 #define IN_CHARGE_NAME "__in_chrg"
3602 #define VTBL_PTR_TYPE "__vtbl_ptr_type"
3603 #define VTABLE_DELTA_NAME "__delta"
3604 #define VTABLE_PFN_NAME "__pfn"
3606 #if !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL)
3608 #define VTABLE_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == 'v' \
3609 && IDENTIFIER_POINTER (ID_NODE)[2] == 't' \
3610 && IDENTIFIER_POINTER (ID_NODE)[3] == JOINER)
3612 #define TEMP_NAME_P(ID_NODE) \
3613 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, sizeof (AUTO_TEMP_NAME)-1))
3614 #define VFIELD_NAME_P(ID_NODE) \
3615 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, sizeof(VFIELD_NAME)-1))
3617 /* For anonymous aggregate types, we need some sort of name to
3618 hold on to. In practice, this should not appear, but it should
3619 not be harmful if it does. */
3620 #define ANON_AGGRNAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[0] == JOINER \
3621 && IDENTIFIER_POINTER (ID_NODE)[1] == '_')
3622 #endif /* !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) */
3625 /* Nonzero if we're done parsing and into end-of-file activities. */
3629 /* A list of namespace-scope objects which have constructors or
3630 destructors which reside in the global scope. The decl is stored
3631 in the TREE_VALUE slot and the initializer is stored in the
3632 TREE_PURPOSE slot. */
3633 extern GTY(()) tree static_aggregates;
3635 enum overload_flags { NO_SPECIAL = 0, DTOR_FLAG, OP_FLAG, TYPENAME_FLAG };
3637 /* These are uses as bits in flags passed to various functions to
3638 control their behavior. Despite the LOOKUP_ prefix, many of these
3639 do not control name lookup. ??? Functions using these flags should
3640 probably be modified to accept explicit boolean flags for the
3641 behaviors relevant to them. */
3642 /* Check for access violations. */
3643 #define LOOKUP_PROTECT (1 << 0)
3644 /* Complain if no suitable member function matching the arguments is
3646 #define LOOKUP_COMPLAIN (1 << 1)
3647 #define LOOKUP_NORMAL (LOOKUP_PROTECT | LOOKUP_COMPLAIN)
3648 /* Even if the function found by lookup is a virtual function, it
3649 should be called directly. */
3650 #define LOOKUP_NONVIRTUAL (1 << 2)
3651 /* Non-converting (i.e., "explicit") constructors are not tried. */
3652 #define LOOKUP_ONLYCONVERTING (1 << 3)
3653 /* If a temporary is created, it should be created so that it lives
3654 as long as the current variable bindings; otherwise it only lives
3655 until the end of the complete-expression. It also forces
3656 direct-initialization in cases where other parts of the compiler
3657 have already generated a temporary, such as reference
3658 initialization and the catch parameter. */
3659 #define DIRECT_BIND (1 << 4)
3660 /* User-defined conversions are not permitted. (Built-in conversions
3662 #define LOOKUP_NO_CONVERSION (1 << 5)
3663 /* The user has explicitly called a destructor. (Therefore, we do
3664 not need to check that the object is non-NULL before calling the
3666 #define LOOKUP_DESTRUCTOR (1 << 6)
3667 /* Do not permit references to bind to temporaries. */
3668 #define LOOKUP_NO_TEMP_BIND (1 << 7)
3669 /* Do not accept objects, and possibly namespaces. */
3670 #define LOOKUP_PREFER_TYPES (1 << 8)
3671 /* Do not accept objects, and possibly types. */
3672 #define LOOKUP_PREFER_NAMESPACES (1 << 9)
3673 /* Accept types or namespaces. */
3674 #define LOOKUP_PREFER_BOTH (LOOKUP_PREFER_TYPES | LOOKUP_PREFER_NAMESPACES)
3675 /* We are checking that a constructor can be called -- but we do not
3676 actually plan to call it. */
3677 #define LOOKUP_CONSTRUCTOR_CALLABLE (1 << 10)
3678 /* Return friend declarations and un-declared builtin functions.
3679 (Normally, these entities are registered in the symbol table, but
3680 not found by lookup.) */
3681 #define LOOKUP_HIDDEN (LOOKUP_CONSTRUCTOR_CALLABLE << 1)
3683 #define LOOKUP_NAMESPACES_ONLY(F) \
3684 (((F) & LOOKUP_PREFER_NAMESPACES) && !((F) & LOOKUP_PREFER_TYPES))
3685 #define LOOKUP_TYPES_ONLY(F) \
3686 (!((F) & LOOKUP_PREFER_NAMESPACES) && ((F) & LOOKUP_PREFER_TYPES))
3687 #define LOOKUP_QUALIFIERS_ONLY(F) ((F) & LOOKUP_PREFER_BOTH)
3690 /* These flags are used by the conversion code.
3691 CONV_IMPLICIT : Perform implicit conversions (standard and user-defined).
3692 CONV_STATIC : Perform the explicit conversions for static_cast.
3693 CONV_CONST : Perform the explicit conversions for const_cast.
3694 CONV_REINTERPRET: Perform the explicit conversions for reinterpret_cast.
3695 CONV_PRIVATE : Perform upcasts to private bases.
3696 CONV_FORCE_TEMP : Require a new temporary when converting to the same
3699 #define CONV_IMPLICIT 1
3700 #define CONV_STATIC 2
3701 #define CONV_CONST 4
3702 #define CONV_REINTERPRET 8
3703 #define CONV_PRIVATE 16
3704 /* #define CONV_NONCONVERTING 32 */
3705 #define CONV_FORCE_TEMP 64
3706 #define CONV_OLD_CONVERT (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
3708 #define CONV_C_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
3709 | CONV_REINTERPRET | CONV_PRIVATE | CONV_FORCE_TEMP)
3711 /* Used by build_expr_type_conversion to indicate which types are
3712 acceptable as arguments to the expression under consideration. */
3714 #define WANT_INT 1 /* integer types, including bool */
3715 #define WANT_FLOAT 2 /* floating point types */
3716 #define WANT_ENUM 4 /* enumerated types */
3717 #define WANT_POINTER 8 /* pointer types */
3718 #define WANT_NULL 16 /* null pointer constant */
3719 #define WANT_VECTOR 32 /* vector types */
3720 #define WANT_ARITH (WANT_INT | WANT_FLOAT | WANT_VECTOR)
3722 /* Used with comptypes, and related functions, to guide type
3725 #define COMPARE_STRICT 0 /* Just check if the types are the
3727 #define COMPARE_BASE 1 /* Check to see if the second type is
3728 derived from the first. */
3729 #define COMPARE_DERIVED 2 /* Like COMPARE_BASE, but in
3731 #define COMPARE_REDECLARATION 4 /* The comparison is being done when
3732 another declaration of an existing
3734 #define COMPARE_STRUCTURAL 8 /* The comparison is intended to be
3735 structural. The actual comparison
3736 will be identical to
3739 /* Used with push_overloaded_decl. */
3740 #define PUSH_GLOBAL 0 /* Push the DECL into namespace scope,
3741 regardless of the current scope. */
3742 #define PUSH_LOCAL 1 /* Push the DECL into the current
3744 #define PUSH_USING 2 /* We are pushing this DECL as the
3745 result of a using declaration. */
3747 /* Used with start function. */
3748 #define SF_DEFAULT 0 /* No flags. */
3749 #define SF_PRE_PARSED 1 /* The function declaration has
3750 already been parsed. */
3751 #define SF_INCLASS_INLINE 2 /* The function is an inline, defined
3752 in the class body. */
3754 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, or if TYPE2
3755 is derived from TYPE1, or if TYPE2 is a pointer (reference) to a
3756 class derived from the type pointed to (referred to) by TYPE1. */
3757 #define same_or_base_type_p(TYPE1, TYPE2) \
3758 comptypes ((TYPE1), (TYPE2), COMPARE_BASE)
3760 /* These macros are used to access a TEMPLATE_PARM_INDEX. */
3761 #define TEMPLATE_PARM_INDEX_CAST(NODE) \
3762 ((template_parm_index*)TEMPLATE_PARM_INDEX_CHECK (NODE))
3763 #define TEMPLATE_PARM_IDX(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->index)
3764 #define TEMPLATE_PARM_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->level)
3765 #define TEMPLATE_PARM_DESCENDANTS(NODE) (TREE_CHAIN (NODE))
3766 #define TEMPLATE_PARM_ORIG_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->orig_level)
3767 #define TEMPLATE_PARM_DECL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->decl)
3768 #define TEMPLATE_PARM_PARAMETER_PACK(NODE) \
3769 (TREE_LANG_FLAG_0 (TEMPLATE_PARM_INDEX_CHECK (NODE)))
3771 /* These macros are for accessing the fields of TEMPLATE_TYPE_PARM,
3772 TEMPLATE_TEMPLATE_PARM and BOUND_TEMPLATE_TEMPLATE_PARM nodes. */
3773 #define TEMPLATE_TYPE_PARM_INDEX(NODE) \
3774 (TREE_CHECK3 ((NODE), TEMPLATE_TYPE_PARM, TEMPLATE_TEMPLATE_PARM, \
3775 BOUND_TEMPLATE_TEMPLATE_PARM))->type.values
3776 #define TEMPLATE_TYPE_IDX(NODE) \
3777 (TEMPLATE_PARM_IDX (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3778 #define TEMPLATE_TYPE_LEVEL(NODE) \
3779 (TEMPLATE_PARM_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3780 #define TEMPLATE_TYPE_ORIG_LEVEL(NODE) \
3781 (TEMPLATE_PARM_ORIG_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3782 #define TEMPLATE_TYPE_DECL(NODE) \
3783 (TEMPLATE_PARM_DECL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3784 #define TEMPLATE_TYPE_PARAMETER_PACK(NODE) \
3785 (TEMPLATE_PARM_PARAMETER_PACK (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3787 /* These constants can used as bit flags in the process of tree formatting.
3789 TFF_PLAIN_IDENTIFIER: unqualified part of a name.
3790 TFF_SCOPE: include the class and namespace scope of the name.
3791 TFF_CHASE_TYPEDEF: print the original type-id instead of the typedef-name.
3792 TFF_DECL_SPECIFIERS: print decl-specifiers.
3793 TFF_CLASS_KEY_OR_ENUM: precede a class-type name (resp. enum name) with
3794 a class-key (resp. `enum').
3795 TFF_RETURN_TYPE: include function return type.
3796 TFF_FUNCTION_DEFAULT_ARGUMENTS: include function default parameter values.
3797 TFF_EXCEPTION_SPECIFICATION: show function exception specification.
3798 TFF_TEMPLATE_HEADER: show the template<...> header in a
3799 template-declaration.
3800 TFF_TEMPLATE_NAME: show only template-name.
3801 TFF_EXPR_IN_PARENS: parenthesize expressions.
3802 TFF_NO_FUNCTION_ARGUMENTS: don't show function arguments.
3803 TFF_UNQUALIFIED_NAME: do not print the qualifying scope of the
3804 top-level entity. */
3806 #define TFF_PLAIN_IDENTIFIER (0)
3807 #define TFF_SCOPE (1)
3808 #define TFF_CHASE_TYPEDEF (1 << 1)
3809 #define TFF_DECL_SPECIFIERS (1 << 2)
3810 #define TFF_CLASS_KEY_OR_ENUM (1 << 3)
3811 #define TFF_RETURN_TYPE (1 << 4)
3812 #define TFF_FUNCTION_DEFAULT_ARGUMENTS (1 << 5)
3813 #define TFF_EXCEPTION_SPECIFICATION (1 << 6)
3814 #define TFF_TEMPLATE_HEADER (1 << 7)
3815 #define TFF_TEMPLATE_NAME (1 << 8)
3816 #define TFF_EXPR_IN_PARENS (1 << 9)
3817 #define TFF_NO_FUNCTION_ARGUMENTS (1 << 10)
3818 #define TFF_UNQUALIFIED_NAME (1 << 11)
3820 /* Returns the TEMPLATE_DECL associated to a TEMPLATE_TEMPLATE_PARM
3822 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_DECL(NODE) \
3823 ((TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM) \
3824 ? TYPE_TI_TEMPLATE (NODE) \
3829 extern void init_reswords (void);
3831 /* Indexed by TREE_CODE, these tables give C-looking names to
3832 operators represented by TREE_CODES. For example,
3833 opname_tab[(int) MINUS_EXPR] == "-". */
3834 extern const char **opname_tab, **assignop_tab;
3836 typedef struct operator_name_info_t GTY(())
3838 /* The IDENTIFIER_NODE for the operator. */
3840 /* The name of the operator. */
3842 /* The mangled name of the operator. */
3843 const char *mangled_name;
3844 /* The arity of the operator. */
3846 } operator_name_info_t;
3848 /* A mapping from tree codes to operator name information. */
3849 extern GTY(()) operator_name_info_t operator_name_info
3850 [(int) LAST_CPLUS_TREE_CODE];
3851 /* Similar, but for assignment operators. */
3852 extern GTY(()) operator_name_info_t assignment_operator_name_info
3853 [(int) LAST_CPLUS_TREE_CODE];
3855 /* A type-qualifier, or bitmask therefore, using the TYPE_QUAL
3858 typedef int cp_cv_quals;
3860 /* A storage class. */
3862 typedef enum cp_storage_class {
3863 /* sc_none must be zero so that zeroing a cp_decl_specifier_seq
3864 sets the storage_class field to sc_none. */
3873 /* An individual decl-specifier. */
3875 typedef enum cp_decl_spec {
3877 ds_signed = ds_first,
3894 /* A decl-specifier-seq. */
3896 typedef struct cp_decl_specifier_seq {
3897 /* The number of times each of the keywords has been seen. */
3898 unsigned specs[(int) ds_last];
3899 /* The primary type, if any, given by the decl-specifier-seq.
3900 Modifiers, like "short", "const", and "unsigned" are not
3901 reflected here. This field will be a TYPE, unless a typedef-name
3902 was used, in which case it will be a TYPE_DECL. */
3904 /* The attributes, if any, provided with the specifier sequence. */
3906 /* If non-NULL, a built-in type that the user attempted to redefine
3907 to some other type. */
3908 tree redefined_builtin_type;
3909 /* The storage class specified -- or sc_none if no storage class was
3910 explicitly specified. */
3911 cp_storage_class storage_class;
3912 /* True iff TYPE_SPEC indicates a user-defined type. */
3913 BOOL_BITFIELD user_defined_type_p : 1;
3914 /* True iff multiple types were (erroneously) specified for this
3915 decl-specifier-seq. */
3916 BOOL_BITFIELD multiple_types_p : 1;
3917 /* True iff multiple storage classes were (erroneously) specified
3918 for this decl-specifier-seq or a combination of a storage class
3919 with a typedef specifier. */
3920 BOOL_BITFIELD conflicting_specifiers_p : 1;
3921 /* True iff at least one decl-specifier was found. */
3922 BOOL_BITFIELD any_specifiers_p : 1;
3923 /* True iff "int" was explicitly provided. */
3924 BOOL_BITFIELD explicit_int_p : 1;
3925 /* True iff "char" was explicitly provided. */
3926 BOOL_BITFIELD explicit_char_p : 1;
3927 } cp_decl_specifier_seq;
3929 /* The various kinds of declarators. */
3931 typedef enum cp_declarator_kind {
3939 } cp_declarator_kind;
3943 typedef struct cp_declarator cp_declarator;
3945 typedef struct cp_parameter_declarator cp_parameter_declarator;
3947 /* A parameter, before it has been semantically analyzed. */
3948 struct cp_parameter_declarator {
3949 /* The next parameter, or NULL_TREE if none. */
3950 cp_parameter_declarator *next;
3951 /* The decl-specifiers-seq for the parameter. */
3952 cp_decl_specifier_seq decl_specifiers;
3953 /* The declarator for the parameter. */
3954 cp_declarator *declarator;
3955 /* The default-argument expression, or NULL_TREE, if none. */
3956 tree default_argument;
3957 /* True iff this is the first parameter in the list and the
3958 parameter sequence ends with an ellipsis. */
3963 struct cp_declarator {
3964 /* The kind of declarator. */
3965 ENUM_BITFIELD (cp_declarator_kind) kind : 4;
3966 /* Whether we parsed an ellipsis (`...') just before the declarator,
3967 to indicate this is a parameter pack. */
3968 BOOL_BITFIELD parameter_pack_p : 1;
3969 /* Attributes that apply to this declarator. */
3971 /* For all but cdk_id and cdk_error, the contained declarator. For
3972 cdk_id and cdk_error, guaranteed to be NULL. */
3973 cp_declarator *declarator;
3974 location_t id_loc; /* Currently only set for cdk_id. */
3976 /* For identifiers. */
3978 /* If non-NULL, the qualifying scope (a NAMESPACE_DECL or
3979 *_TYPE) for this identifier. */
3980 tree qualifying_scope;
3981 /* The unqualified name of the entity -- an IDENTIFIER_NODE,
3982 BIT_NOT_EXPR, or TEMPLATE_ID_EXPR. */
3983 tree unqualified_name;
3984 /* If this is the name of a function, what kind of special
3985 function (if any). */
3986 special_function_kind sfk;
3988 /* For functions. */
3990 /* The parameters to the function. */
3991 cp_parameter_declarator *parameters;
3992 /* The cv-qualifiers for the function. */
3993 cp_cv_quals qualifiers;
3994 /* The exception-specification for the function. */
3995 tree exception_specification;
3999 /* The bounds to the array. */
4002 /* For cdk_pointer, cdk_reference, and cdk_ptrmem. */
4004 /* The cv-qualifiers for the pointer. */
4005 cp_cv_quals qualifiers;
4006 /* For cdk_ptrmem, the class type containing the member. */
4012 /* A parameter list indicating for a function with no parameters,
4013 e.g "int f(void)". */
4014 extern cp_parameter_declarator *no_parameters;
4017 extern bool check_dtor_name (tree, tree);
4019 extern tree build_vfield_ref (tree, tree);
4020 extern tree build_conditional_expr (tree, tree, tree);
4021 extern tree build_addr_func (tree);
4022 extern tree build_call_a (tree, int, tree*);
4023 extern tree build_call_n (tree, int, ...);
4024 extern bool null_ptr_cst_p (tree);
4025 extern bool sufficient_parms_p (tree);
4026 extern tree type_decays_to (tree);
4027 extern tree build_user_type_conversion (tree, tree, int);
4028 extern tree build_new_function_call (tree, tree, bool);
4029 extern tree build_operator_new_call (tree, tree, tree *, tree *,
4031 extern tree build_new_method_call (tree, tree, tree, tree, int,
4033 extern tree build_special_member_call (tree, tree, tree, tree, int);
4034 extern tree build_new_op (enum tree_code, int, tree, tree, tree, bool *);
4035 extern tree build_op_delete_call (enum tree_code, tree, tree, bool, tree, tree);
4036 extern bool can_convert (tree, tree);
4037 extern bool can_convert_arg (tree, tree, tree, int);
4038 extern bool can_convert_arg_bad (tree, tree, tree);
4039 extern bool enforce_access (tree, tree, tree);
4040 extern tree convert_default_arg (tree, tree, tree, int);
4041 extern tree convert_arg_to_ellipsis (tree);
4042 extern tree build_x_va_arg (tree, tree);
4043 extern tree cxx_type_promotes_to (tree);
4044 extern tree type_passed_as (tree);
4045 extern tree convert_for_arg_passing (tree, tree);
4046 extern bool is_properly_derived_from (tree, tree);
4047 extern tree initialize_reference (tree, tree, tree, tree *);
4048 extern tree make_temporary_var_for_ref_to_temp (tree, tree);
4049 extern tree strip_top_quals (tree);
4050 extern tree perform_implicit_conversion (tree, tree);
4051 extern tree perform_direct_initialization_if_possible (tree, tree, bool);
4052 extern tree in_charge_arg_for_name (tree);
4053 extern tree build_cxx_call (tree, int, tree *);
4054 #ifdef ENABLE_CHECKING
4055 extern void validate_conversion_obstack (void);
4056 #endif /* ENABLE_CHECKING */
4059 extern tree build_base_path (enum tree_code, tree,
4061 extern tree convert_to_base (tree, tree, bool, bool);
4062 extern tree convert_to_base_statically (tree, tree);
4063 extern tree build_vtbl_ref (tree, tree);
4064 extern tree build_vfn_ref (tree, tree);
4065 extern tree get_vtable_decl (tree, int);
4066 extern void resort_type_method_vec (void *, void *,
4067 gt_pointer_operator, void *);
4068 extern bool add_method (tree, tree, tree);
4069 extern bool currently_open_class (tree);
4070 extern tree currently_open_derived_class (tree);
4071 extern tree finish_struct (tree, tree);
4072 extern void finish_struct_1 (tree);
4073 extern int resolves_to_fixed_type_p (tree, int *);
4074 extern void init_class_processing (void);
4075 extern int is_empty_class (tree);
4076 extern void pushclass (tree);
4077 extern void popclass (void);
4078 extern void push_nested_class (tree);
4079 extern void pop_nested_class (void);
4080 extern int current_lang_depth (void);
4081 extern void push_lang_context (tree);
4082 extern void pop_lang_context (void);
4083 extern tree instantiate_type (tree, tree, tsubst_flags_t);
4084 extern void print_class_statistics (void);
4085 extern void cxx_print_statistics (void);
4086 extern void cxx_print_xnode (FILE *, tree, int);
4087 extern void cxx_print_decl (FILE *, tree, int);
4088 extern void cxx_print_type (FILE *, tree, int);
4089 extern void cxx_print_identifier (FILE *, tree, int);
4090 extern void cxx_print_error_function (struct diagnostic_context *,
4092 extern void build_self_reference (void);
4093 extern int same_signature_p (tree, tree);
4094 extern void maybe_add_class_template_decl_list (tree, tree, int);
4095 extern void unreverse_member_declarations (tree);
4096 extern void invalidate_class_lookup_cache (void);
4097 extern void maybe_note_name_used_in_class (tree, tree);
4098 extern void note_name_declared_in_class (tree, tree);
4099 extern tree get_vtbl_decl_for_binfo (tree);
4100 extern void debug_class (tree);
4101 extern void debug_thunks (tree);
4102 extern tree cp_fold_obj_type_ref (tree, tree);
4103 extern void set_linkage_according_to_type (tree, tree);
4104 extern void determine_key_method (tree);
4105 extern void check_for_override (tree, tree);
4106 extern void push_class_stack (void);
4107 extern void pop_class_stack (void);
4110 extern tree convert_to_reference (tree, tree, int, int, tree);
4111 extern tree convert_from_reference (tree);
4112 extern tree force_rvalue (tree);
4113 extern tree ocp_convert (tree, tree, int, int);
4114 extern tree cp_convert (tree, tree);
4115 extern tree cp_convert_and_check (tree, tree);
4116 extern tree convert_to_void (tree, const char */*implicit context*/);
4117 extern tree convert_force (tree, tree, int);
4118 extern tree build_expr_type_conversion (int, tree, bool);
4119 extern tree type_promotes_to (tree);
4120 extern tree perform_qualification_conversions (tree, tree);
4121 extern void clone_function_decl (tree, int);
4122 extern void adjust_clone_args (tree);
4125 extern tree poplevel (int, int, int);
4126 extern void insert_block (tree);
4127 extern tree pushdecl (tree);
4128 extern tree pushdecl_maybe_friend (tree, bool);
4129 extern void cxx_init_decl_processing (void);
4130 enum cp_tree_node_structure_enum cp_tree_node_structure
4131 (union lang_tree_node *);
4132 extern bool cxx_mark_addressable (tree);
4133 extern void cxx_push_function_context (struct function *);
4134 extern void cxx_pop_function_context (struct function *);
4135 extern void maybe_push_cleanup_level (tree);
4136 extern void finish_scope (void);
4137 extern void push_switch (tree);
4138 extern void pop_switch (void);
4139 extern tree pushtag (tree, tree, tag_scope);
4140 extern tree make_anon_name (void);
4141 extern int decls_match (tree, tree);
4142 extern tree duplicate_decls (tree, tree, bool);
4143 extern tree pushdecl_top_level_maybe_friend (tree, bool);
4144 extern tree pushdecl_top_level_and_finish (tree, tree);
4145 extern tree declare_local_label (tree);
4146 extern tree define_label (location_t, tree);
4147 extern void check_goto (tree);
4148 extern bool check_omp_return (void);
4149 extern tree make_typename_type (tree, tree, enum tag_types, tsubst_flags_t);
4150 extern tree make_unbound_class_template (tree, tree, tree, tsubst_flags_t);
4151 extern tree check_for_out_of_scope_variable (tree);
4152 extern tree build_library_fn (tree, tree);
4153 extern tree build_library_fn_ptr (const char *, tree);
4154 extern tree build_cp_library_fn_ptr (const char *, tree);
4155 extern tree push_library_fn (tree, tree);
4156 extern tree push_void_library_fn (tree, tree);
4157 extern tree push_throw_library_fn (tree, tree);
4158 extern tree check_tag_decl (cp_decl_specifier_seq *);
4159 extern tree shadow_tag (cp_decl_specifier_seq *);
4160 extern tree groktypename (cp_decl_specifier_seq *, const cp_declarator *);
4161 extern tree start_decl (const cp_declarator *, cp_decl_specifier_seq *, int, tree, tree, tree *);
4162 extern void start_decl_1 (tree, bool);
4163 extern void cp_finish_decl (tree, tree, bool, tree, int);
4164 extern void finish_decl (tree, tree, tree);
4165 extern int cp_complete_array_type (tree *, tree, bool);
4166 extern tree build_ptrmemfunc_type (tree);
4167 extern tree build_ptrmem_type (tree, tree);
4168 /* the grokdeclarator prototype is in decl.h */
4169 extern tree build_this_parm (tree, cp_cv_quals);
4170 extern int copy_fn_p (tree);
4171 extern tree get_scope_of_declarator (const cp_declarator *);
4172 extern void grok_special_member_properties (tree);
4173 extern int grok_ctor_properties (tree, tree);
4174 extern bool grok_op_properties (tree, bool);
4175 extern tree xref_tag (enum tag_types, tree, tag_scope, bool);
4176 extern tree xref_tag_from_type (tree, tree, tag_scope);
4177 extern bool xref_basetypes (tree, tree);
4178 extern tree start_enum (tree);
4179 extern void finish_enum (tree);
4180 extern void build_enumerator (tree, tree, tree);
4181 extern void start_preparsed_function (tree, tree, int);
4182 extern int start_function (cp_decl_specifier_seq *, const cp_declarator *, tree);
4183 extern tree begin_function_body (void);
4184 extern void finish_function_body (tree);
4185 extern tree finish_function (int);
4186 extern tree start_method (cp_decl_specifier_seq *, const cp_declarator *, tree);
4187 extern tree finish_method (tree);
4188 extern void maybe_register_incomplete_var (tree);
4189 extern void complete_vars (tree);
4190 extern void finish_stmt (void);
4191 extern void print_other_binding_stack (struct cp_binding_level *);
4192 extern void revert_static_member_fn (tree);
4193 extern void fixup_anonymous_aggr (tree);
4194 extern int check_static_variable_definition (tree, tree);
4195 extern tree compute_array_index_type (tree, tree);
4196 extern tree check_default_argument (tree, tree);
4197 typedef int (*walk_namespaces_fn) (tree, void *);
4198 extern int walk_namespaces (walk_namespaces_fn,
4200 extern int wrapup_globals_for_namespace (tree, void *);
4201 extern tree create_implicit_typedef (tree, tree);
4202 extern tree maybe_push_decl (tree);
4203 extern tree force_target_expr (tree, tree);
4204 extern tree build_target_expr_with_type (tree, tree);
4205 extern int local_variable_p (tree);
4206 extern int nonstatic_local_decl_p (tree);
4207 extern tree register_dtor_fn (tree);
4208 extern tmpl_spec_kind current_tmpl_spec_kind (int);
4209 extern tree cp_fname_init (const char *, tree *);
4210 extern tree cxx_builtin_function (tree decl);
4211 extern tree check_elaborated_type_specifier (enum tag_types, tree, bool);
4212 extern void warn_extern_redeclared_static (tree, tree);
4213 extern const char *cxx_comdat_group (tree);
4214 extern bool cp_missing_noreturn_ok_p (tree);
4215 extern void initialize_artificial_var (tree, tree);
4216 extern tree check_var_type (tree, tree);
4217 extern tree reshape_init (tree, tree);
4220 extern bool check_java_method (tree);
4221 extern tree build_memfn_type (tree, tree, cp_cv_quals);
4222 extern void maybe_retrofit_in_chrg (tree);
4223 extern void maybe_make_one_only (tree);
4224 extern void grokclassfn (tree, tree,
4225 enum overload_flags);
4226 extern tree grok_array_decl (tree, tree);
4227 extern tree delete_sanity (tree, tree, bool, int);
4228 extern tree check_classfn (tree, tree, tree);
4229 extern void check_member_template (tree);
4230 extern tree grokfield (const cp_declarator *, cp_decl_specifier_seq *,
4231 tree, bool, tree, tree);
4232 extern tree grokbitfield (const cp_declarator *, cp_decl_specifier_seq *,
4234 extern void cplus_decl_attributes (tree *, tree, int);
4235 extern void finish_anon_union (tree);
4236 extern void cp_write_global_declarations (void);
4237 extern tree coerce_new_type (tree);
4238 extern tree coerce_delete_type (tree);
4239 extern void comdat_linkage (tree);
4240 extern void determine_visibility (tree);
4241 extern void constrain_class_visibility (tree);
4242 extern void update_member_visibility (tree);
4243 extern void import_export_decl (tree);
4244 extern tree build_cleanup (tree);
4245 extern tree build_offset_ref_call_from_tree (tree, tree);
4246 extern void check_default_args (tree);
4247 extern void mark_used (tree);
4248 extern void finish_static_data_member_decl (tree, tree, bool, tree, int);
4249 extern tree cp_build_parm_decl (tree, tree);
4250 extern tree get_guard (tree);
4251 extern tree get_guard_cond (tree);
4252 extern tree set_guard (tree);
4253 extern tree cxx_callgraph_analyze_expr (tree *, int *, tree);
4254 extern void mark_needed (tree);
4255 extern bool decl_needed_p (tree);
4256 extern void note_vague_linkage_fn (tree);
4257 extern tree build_artificial_parm (tree, tree);
4260 extern void init_error (void);
4261 extern const char *type_as_string (tree, int);
4262 extern const char *decl_as_string (tree, int);
4263 extern const char *expr_as_string (tree, int);
4264 extern const char *lang_decl_name (tree, int);
4265 extern const char *language_to_string (enum languages);
4266 extern const char *class_key_or_enum_as_string (tree);
4267 extern void print_instantiation_context (void);
4268 extern void maybe_warn_variadic_templates (void);
4271 extern void init_exception_processing (void);
4272 extern tree expand_start_catch_block (tree);
4273 extern void expand_end_catch_block (void);
4274 extern tree build_exc_ptr (void);
4275 extern tree build_throw (tree);
4276 extern int nothrow_libfn_p (tree);
4277 extern void check_handlers (tree);
4278 extern void choose_personality_routine (enum languages);
4279 extern tree eh_type_info (tree);
4282 extern rtx cxx_expand_expr (tree, rtx,
4285 extern tree cplus_expand_constant (tree);
4288 extern int is_friend (tree, tree);
4289 extern void make_friend_class (tree, tree, bool);
4290 extern void add_friend (tree, tree, bool);
4291 extern tree do_friend (tree, tree, tree, tree, enum overload_flags, bool);
4294 extern tree expand_member_init (tree);
4295 extern void emit_mem_initializers (tree);
4296 extern tree build_aggr_init (tree, tree, int);
4297 extern int is_aggr_type (tree, int);
4298 extern tree get_type_value (tree);
4299 extern tree build_zero_init (tree, tree, bool);
4300 extern tree build_offset_ref (tree, tree, bool);
4301 extern tree build_new (tree, tree, tree, tree, int);
4302 extern tree build_vec_init (tree, tree, tree, bool, int);
4303 extern tree build_delete (tree, tree,
4304 special_function_kind,
4306 extern void push_base_cleanups (void);
4307 extern tree build_vec_delete (tree, tree,
4308 special_function_kind, int);
4309 extern tree create_temporary_var (tree);
4310 extern void initialize_vtbl_ptrs (tree);
4311 extern tree build_java_class_ref (tree);
4312 extern tree integral_constant_value (tree);
4315 extern void cxx_dup_lang_specific_decl (tree);
4316 extern void yyungetc (int, int);
4318 extern tree unqualified_name_lookup_error (tree);
4319 extern tree unqualified_fn_lookup_error (tree);
4320 extern tree build_lang_decl (enum tree_code, tree, tree);
4321 extern void retrofit_lang_decl (tree);
4322 extern tree copy_decl (tree);
4323 extern tree copy_type (tree);
4324 extern tree cxx_make_type (enum tree_code);
4325 extern tree make_aggr_type (enum tree_code);
4326 extern void yyerror (const char *);
4327 extern void yyhook (int);
4328 extern bool cxx_init (void);
4329 extern void cxx_finish (void);
4332 extern void init_method (void);
4333 extern tree make_thunk (tree, bool, tree, tree);
4334 extern void finish_thunk (tree);
4335 extern void use_thunk (tree, bool);
4336 extern void synthesize_method (tree);
4337 extern tree lazily_declare_fn (special_function_kind,
4339 extern tree skip_artificial_parms_for (tree, tree);
4340 extern int num_artificial_parms_for (tree);
4341 extern tree make_alias_for (tree, tree);
4342 extern tree locate_copy (tree, void *);
4343 extern tree locate_ctor (tree, void *);
4344 extern tree locate_dtor (tree, void *);
4347 extern bool maybe_clone_body (tree);
4350 extern void check_template_shadow (tree);
4351 extern tree get_innermost_template_args (tree, int);
4352 extern void maybe_begin_member_template_processing (tree);
4353 extern void maybe_end_member_template_processing (void);
4354 extern tree finish_member_template_decl (tree);
4355 extern void begin_template_parm_list (void);
4356 extern bool begin_specialization (void);
4357 extern void reset_specialization (void);
4358 extern void end_specialization (void);
4359 extern void begin_explicit_instantiation (void);
4360 extern void end_explicit_instantiation (void);
4361 extern tree check_explicit_specialization (tree, tree, int, int);
4362 extern tree process_template_parm (tree, tree, bool, bool);
4363 extern tree end_template_parm_list (tree);
4364 extern void end_template_decl (void);
4365 extern bool check_default_tmpl_args (tree, tree, int, int, int);
4366 extern tree push_template_decl (tree);
4367 extern tree push_template_decl_real (tree, bool);
4368 extern bool redeclare_class_template (tree, tree);
4369 extern tree lookup_template_class (tree, tree, tree, tree,
4370 int, tsubst_flags_t);
4371 extern tree lookup_template_function (tree, tree);
4372 extern int uses_template_parms (tree);
4373 extern int uses_template_parms_level (tree, int);
4374 extern tree instantiate_class_template (tree);
4375 extern tree instantiate_template (tree, tree, tsubst_flags_t);
4376 extern int fn_type_unification (tree, tree, tree, tree,
4377 tree, unification_kind_t, int);
4378 extern void mark_decl_instantiated (tree, int);
4379 extern int more_specialized_fn (tree, tree, int);
4380 extern void do_decl_instantiation (tree, tree);
4381 extern void do_type_instantiation (tree, tree, tsubst_flags_t);
4382 extern tree instantiate_decl (tree, int, bool);
4383 extern int comp_template_parms (tree, tree);
4384 extern bool uses_parameter_packs (tree);
4385 extern bool template_parameter_pack_p (tree);
4386 extern bool template_parms_variadic_p (tree);
4387 extern tree make_pack_expansion (tree);
4388 extern void check_for_bare_parameter_packs (tree);
4389 extern int template_class_depth (tree);
4390 extern int is_specialization_of (tree, tree);
4391 extern bool is_specialization_of_friend (tree, tree);
4392 extern int comp_template_args (tree, tree);
4393 extern tree maybe_process_partial_specialization (tree);
4394 extern tree most_specialized_instantiation (tree);
4395 extern void print_candidates (tree);
4396 extern void instantiate_pending_templates (int);
4397 extern tree tsubst_default_argument (tree, tree, tree);
4398 extern tree tsubst_copy_and_build (tree, tree, tsubst_flags_t,
4400 extern tree most_general_template (tree);
4401 extern tree get_mostly_instantiated_function_type (tree);
4402 extern int problematic_instantiation_changed (void);
4403 extern void record_last_problematic_instantiation (void);
4404 extern tree current_instantiation (void);
4405 extern tree maybe_get_template_decl_from_type_decl (tree);
4406 extern int processing_template_parmlist;
4407 extern bool dependent_type_p (tree);
4408 extern bool any_dependent_template_arguments_p (tree);
4409 extern bool dependent_template_p (tree);
4410 extern bool dependent_template_id_p (tree, tree);
4411 extern bool type_dependent_expression_p (tree);
4412 extern bool any_type_dependent_arguments_p (tree);
4413 extern bool value_dependent_expression_p (tree);
4414 extern tree resolve_typename_type (tree, bool);
4415 extern tree template_for_substitution (tree);
4416 extern tree build_non_dependent_expr (tree);
4417 extern tree build_non_dependent_args (tree);
4418 extern bool reregister_specialization (tree, tree, tree);
4419 extern tree fold_non_dependent_expr (tree);
4420 extern bool explicit_class_specialization_p (tree);
4423 extern void init_repo (void);
4424 extern int repo_emit_p (tree);
4425 extern bool repo_export_class_p (tree);
4426 extern void finish_repo (void);
4429 /* A vector of all tinfo decls that haven't been emitted yet. */
4430 extern GTY(()) VEC(tree,gc) *unemitted_tinfo_decls;
4432 extern void init_rtti_processing (void);
4433 extern tree build_typeid (tree);
4434 extern tree get_tinfo_decl (tree);
4435 extern tree get_typeid (tree);
4436 extern tree build_dynamic_cast (tree, tree);
4437 extern void emit_support_tinfos (void);
4438 extern bool emit_tinfo_decl (tree);
4441 extern bool accessible_base_p (tree, tree, bool);
4442 extern tree lookup_base (tree, tree, base_access,
4444 extern tree dcast_base_hint (tree, tree);
4445 extern int accessible_p (tree, tree, bool);
4446 extern tree lookup_field_1 (tree, tree, bool);
4447 extern tree lookup_field (tree, tree, int, bool);
4448 extern int lookup_fnfields_1 (tree, tree);
4449 extern int class_method_index_for_fn (tree, tree);
4450 extern tree lookup_fnfields (tree, tree, int);
4451 extern tree lookup_member (tree, tree, int, bool);
4452 extern int look_for_overrides (tree, tree);
4453 extern void get_pure_virtuals (tree);
4454 extern void maybe_suppress_debug_info (tree);
4455 extern void note_debug_info_needed (tree);
4456 extern void print_search_statistics (void);
4457 extern void reinit_search_statistics (void);
4458 extern tree current_scope (void);
4459 extern int at_function_scope_p (void);
4460 extern bool at_class_scope_p (void);
4461 extern bool at_namespace_scope_p (void);
4462 extern tree context_for_name_lookup (tree);
4463 extern tree lookup_conversions (tree);
4464 extern tree binfo_from_vbase (tree);
4465 extern tree binfo_for_vbase (tree, tree);
4466 extern tree look_for_overrides_here (tree, tree);
4467 #define dfs_skip_bases ((tree)1)
4468 extern tree dfs_walk_all (tree, tree (*) (tree, void *),
4469 tree (*) (tree, void *), void *);
4470 extern tree dfs_walk_once (tree, tree (*) (tree, void *),
4471 tree (*) (tree, void *), void *);
4472 extern tree binfo_via_virtual (tree, tree);
4473 extern tree build_baselink (tree, tree, tree, tree);
4474 extern tree adjust_result_of_qualified_name_lookup
4476 extern tree copied_binfo (tree, tree);
4477 extern tree original_binfo (tree, tree);
4478 extern int shared_member_p (tree);
4481 /* The representation of a deferred access check. */
4483 typedef struct deferred_access_check GTY(())
4485 /* The base class in which the declaration is referenced. */
4487 /* The declaration whose access must be checked. */
4489 /* The declaration that should be used in the error message. */
4491 } deferred_access_check;
4492 DEF_VEC_O(deferred_access_check);
4493 DEF_VEC_ALLOC_O(deferred_access_check,gc);
4495 /* in semantics.c */
4496 extern void push_deferring_access_checks (deferring_kind);
4497 extern void resume_deferring_access_checks (void);
4498 extern void stop_deferring_access_checks (void);
4499 extern void pop_deferring_access_checks (void);
4500 extern VEC (deferred_access_check,gc)* get_deferred_access_checks (void);
4501 extern void pop_to_parent_deferring_access_checks (void);
4502 extern void perform_access_checks (VEC (deferred_access_check,gc)*);
4503 extern void perform_deferred_access_checks (void);
4504 extern void perform_or_defer_access_check (tree, tree, tree);
4505 extern int stmts_are_full_exprs_p (void);
4506 extern void init_cp_semantics (void);
4507 extern tree do_poplevel (tree);
4508 extern void add_decl_expr (tree);
4509 extern tree finish_expr_stmt (tree);
4510 extern tree begin_if_stmt (void);
4511 extern void finish_if_stmt_cond (tree, tree);
4512 extern tree finish_then_clause (tree);
4513 extern void begin_else_clause (tree);
4514 extern void finish_else_clause (tree);
4515 extern void finish_if_stmt (tree);
4516 extern tree begin_while_stmt (void);
4517 extern void finish_while_stmt_cond (tree, tree);
4518 extern void finish_while_stmt (tree);
4519 extern tree begin_do_stmt (void);
4520 extern void finish_do_body (tree);
4521 extern void finish_do_stmt (tree, tree);
4522 extern tree finish_return_stmt (tree);
4523 extern tree begin_for_stmt (void);
4524 extern void finish_for_init_stmt (tree);
4525 extern void finish_for_cond (tree, tree);
4526 extern void finish_for_expr (tree, tree);
4527 extern void finish_for_stmt (tree);
4528 extern tree finish_break_stmt (void);
4529 extern tree finish_continue_stmt (void);
4530 extern tree begin_switch_stmt (void);
4531 extern void finish_switch_cond (tree, tree);
4532 extern void finish_switch_stmt (tree);
4533 extern tree finish_case_label (tree, tree);
4534 extern tree finish_goto_stmt (tree);
4535 extern tree begin_try_block (void);
4536 extern void finish_try_block (tree);
4537 extern tree begin_eh_spec_block (void);
4538 extern void finish_eh_spec_block (tree, tree);
4539 extern void finish_handler_sequence (tree);
4540 extern tree begin_function_try_block (tree *);
4541 extern void finish_function_try_block (tree);
4542 extern void finish_function_handler_sequence (tree, tree);
4543 extern void finish_cleanup_try_block (tree);
4544 extern tree begin_handler (void);
4545 extern void finish_handler_parms (tree, tree);
4546 extern void finish_handler (tree);
4547 extern void finish_cleanup (tree, tree);
4554 extern tree begin_compound_stmt (unsigned int);
4556 extern void finish_compound_stmt (tree);
4557 extern tree finish_asm_stmt (int, tree, tree, tree, tree);
4558 extern tree finish_label_stmt (tree);
4559 extern void finish_label_decl (tree);
4560 extern tree finish_parenthesized_expr (tree);
4561 extern tree finish_non_static_data_member (tree, tree, tree);
4562 extern tree begin_stmt_expr (void);
4563 extern tree finish_stmt_expr_expr (tree, tree);
4564 extern tree finish_stmt_expr (tree, bool);
4565 extern tree perform_koenig_lookup (tree, tree);
4566 extern tree finish_call_expr (tree, tree, bool, bool);
4567 extern tree finish_increment_expr (tree, enum tree_code);
4568 extern tree finish_this_expr (void);
4569 extern tree finish_pseudo_destructor_expr (tree, tree, tree);
4570 extern tree finish_unary_op_expr (enum tree_code, tree);
4571 extern tree finish_compound_literal (tree, VEC(constructor_elt,gc) *);
4572 extern tree finish_fname (tree);
4573 extern void finish_translation_unit (void);
4574 extern tree finish_template_type_parm (tree, tree);
4575 extern tree finish_template_template_parm (tree, tree);
4576 extern tree begin_class_definition (tree, tree);
4577 extern void finish_template_decl (tree);
4578 extern tree finish_template_type (tree, tree, int);
4579 extern tree finish_base_specifier (tree, tree, bool);
4580 extern void finish_member_declaration (tree);
4581 extern void qualified_name_lookup_error (tree, tree, tree);
4582 extern void check_template_keyword (tree);
4583 extern tree finish_id_expression (tree, tree, tree,
4586 bool, bool, bool, bool,
4588 extern tree finish_typeof (tree);
4589 extern tree finish_offsetof (tree);
4590 extern void finish_decl_cleanup (tree, tree);
4591 extern void finish_eh_cleanup (tree);
4592 extern void expand_body (tree);
4593 extern void finish_mem_initializers (tree);
4594 extern tree check_template_template_default_arg (tree);
4595 extern void expand_or_defer_fn (tree);
4596 extern void check_accessibility_of_qualified_id (tree, tree, tree);
4597 extern tree finish_qualified_id_expr (tree, tree, bool, bool,
4599 extern void simplify_aggr_init_expr (tree *);
4600 extern void finalize_nrv (tree *, tree, tree);
4601 extern void note_decl_for_pch (tree);
4602 extern tree finish_omp_clauses (tree);
4603 extern void finish_omp_threadprivate (tree);
4604 extern tree begin_omp_structured_block (void);
4605 extern tree finish_omp_structured_block (tree);
4606 extern tree begin_omp_parallel (void);
4607 extern tree finish_omp_parallel (tree, tree);
4608 extern tree finish_omp_for (location_t, tree, tree,
4609 tree, tree, tree, tree);
4610 extern void finish_omp_atomic (enum tree_code, tree, tree);
4611 extern void finish_omp_barrier (void);
4612 extern void finish_omp_flush (void);
4613 extern enum omp_clause_default_kind cxx_omp_predetermined_sharing (tree);
4614 extern tree cxx_omp_clause_default_ctor (tree, tree);
4615 extern tree cxx_omp_clause_copy_ctor (tree, tree, tree);
4616 extern tree cxx_omp_clause_assign_op (tree, tree, tree);
4617 extern tree cxx_omp_clause_dtor (tree, tree);
4618 extern bool cxx_omp_privatize_by_reference (tree);
4619 extern tree baselink_for_fns (tree);
4620 extern void finish_static_assert (tree, tree, location_t,
4622 extern tree finish_trait_expr (enum cp_trait_kind, tree, tree);
4625 extern void lang_check_failed (const char *, int,
4626 const char *) ATTRIBUTE_NORETURN;
4627 extern tree stabilize_expr (tree, tree *);
4628 extern void stabilize_call (tree, tree *);
4629 extern void stabilize_aggr_init (tree, tree *);
4630 extern bool stabilize_init (tree, tree *);
4631 extern tree add_stmt_to_compound (tree, tree);
4632 extern tree cxx_maybe_build_cleanup (tree);
4633 extern void init_tree (void);
4634 extern int pod_type_p (tree);
4635 extern int zero_init_p (tree);
4636 extern tree canonical_type_variant (tree);
4637 extern tree copy_binfo (tree, tree, tree,
4639 extern int member_p (tree);
4640 extern cp_lvalue_kind real_lvalue_p (tree);
4641 extern bool builtin_valid_in_constant_expr_p (tree);
4642 extern tree build_min (enum tree_code, tree, ...);
4643 extern tree build_min_nt (enum tree_code, ...);
4644 extern tree build_min_non_dep (enum tree_code, tree, ...);
4645 extern tree build_min_non_dep_call_list (tree, tree, tree);
4646 extern tree build_cplus_new (tree, tree);
4647 extern tree get_target_expr (tree);
4648 extern tree build_cplus_array_type (tree, tree);
4649 extern tree hash_tree_cons (tree, tree, tree);
4650 extern tree hash_tree_chain (tree, tree);
4651 extern tree build_qualified_name (tree, tree, tree, bool);
4652 extern int is_overloaded_fn (tree);
4653 extern tree get_first_fn (tree);
4654 extern tree ovl_cons (tree, tree);
4655 extern tree build_overload (tree, tree);
4656 extern const char *cxx_printable_name (tree, int);
4657 extern tree build_exception_variant (tree, tree);
4658 extern tree bind_template_template_parm (tree, tree);
4659 extern tree array_type_nelts_total (tree);
4660 extern tree array_type_nelts_top (tree);
4661 extern tree break_out_target_exprs (tree);
4662 extern tree get_type_decl (tree);
4663 extern tree decl_namespace_context (tree);
4664 extern bool decl_anon_ns_mem_p (tree);
4665 extern tree lvalue_type (tree);
4666 extern tree error_type (tree);
4667 extern int varargs_function_p (tree);
4668 extern bool really_overloaded_fn (tree);
4669 extern bool cp_tree_equal (tree, tree);
4670 extern tree no_linkage_check (tree, bool);
4671 extern void debug_binfo (tree);
4672 extern tree build_dummy_object (tree);
4673 extern tree maybe_dummy_object (tree, tree *);
4674 extern int is_dummy_object (tree);
4675 extern const struct attribute_spec cxx_attribute_table[];
4676 extern tree make_ptrmem_cst (tree, tree);
4677 extern tree cp_build_type_attribute_variant (tree, tree);
4678 extern tree cp_build_qualified_type_real (tree, int, tsubst_flags_t);
4679 #define cp_build_qualified_type(TYPE, QUALS) \
4680 cp_build_qualified_type_real ((TYPE), (QUALS), tf_warning_or_error)
4681 extern special_function_kind special_function_p (tree);
4682 extern int count_trees (tree);
4683 extern int char_type_p (tree);
4684 extern void verify_stmt_tree (tree);
4685 extern linkage_kind decl_linkage (tree);
4686 extern tree cp_walk_subtrees (tree*, int*, walk_tree_fn,
4687 void*, struct pointer_set_t*);
4688 extern int cp_cannot_inline_tree_fn (tree*);
4689 extern int cp_auto_var_in_fn_p (tree,tree);
4690 extern tree fold_if_not_in_template (tree);
4691 extern tree rvalue (tree);
4692 extern tree convert_bitfield_to_declared_type (tree);
4693 extern tree cp_save_expr (tree);
4694 extern bool cast_valid_in_integral_constant_expression_p (tree);
4697 extern int string_conv_p (tree, tree, int);
4698 extern tree cp_truthvalue_conversion (tree);
4699 extern tree condition_conversion (tree);
4700 extern tree require_complete_type (tree);
4701 extern tree complete_type (tree);
4702 extern tree complete_type_or_else (tree, tree);
4703 extern int type_unknown_p (tree);
4704 extern bool comp_except_specs (tree, tree, bool);
4705 extern bool comptypes (tree, tree, int);
4706 extern bool compparms (tree, tree);
4707 extern int comp_cv_qualification (tree, tree);
4708 extern int comp_cv_qual_signature (tree, tree);
4709 extern tree cxx_sizeof_or_alignof_expr (tree, enum tree_code);
4710 extern tree cxx_sizeof_or_alignof_type (tree, enum tree_code, bool);
4711 #define cxx_sizeof_nowarn(T) cxx_sizeof_or_alignof_type (T, SIZEOF_EXPR, false)
4712 extern tree inline_conversion (tree);
4713 extern tree is_bitfield_expr_with_lowered_type (tree);
4714 extern tree unlowered_expr_type (tree);
4715 extern tree decay_conversion (tree);
4716 extern tree build_class_member_access_expr (tree, tree, tree, bool);
4717 extern tree finish_class_member_access_expr (tree, tree, bool);
4718 extern tree build_x_indirect_ref (tree, const char *);
4719 extern tree build_indirect_ref (tree, const char *);
4720 extern tree build_array_ref (tree, tree);
4721 extern tree get_member_function_from_ptrfunc (tree *, tree);
4722 extern tree build_x_binary_op (enum tree_code, tree,
4723 enum tree_code, tree,
4724 enum tree_code, bool *);
4725 extern tree build_x_unary_op (enum tree_code, tree);
4726 extern tree unary_complex_lvalue (enum tree_code, tree);
4727 extern tree build_x_conditional_expr (tree, tree, tree);
4728 extern tree build_x_compound_expr_from_list (tree, const char *);
4729 extern tree build_x_compound_expr (tree, tree);
4730 extern tree build_compound_expr (tree, tree);
4731 extern tree build_static_cast (tree, tree);
4732 extern tree build_reinterpret_cast (tree, tree);
4733 extern tree build_const_cast (tree, tree);
4734 extern tree build_c_cast (tree, tree);
4735 extern tree build_x_modify_expr (tree, enum tree_code, tree);
4736 extern tree build_modify_expr (tree, enum tree_code, tree);
4737 extern tree convert_for_initialization (tree, tree, tree, int,
4738 const char *, tree, int);
4739 extern int comp_ptr_ttypes (tree, tree);
4740 extern bool comp_ptr_ttypes_const (tree, tree);
4741 extern int ptr_reasonably_similar (tree, tree);
4742 extern tree build_ptrmemfunc (tree, tree, int, bool);
4743 extern int cp_type_quals (tree);
4744 extern bool cp_type_readonly (tree);
4745 extern bool cp_has_mutable_p (tree);
4746 extern bool at_least_as_qualified_p (tree, tree);
4747 extern void cp_apply_type_quals_to_decl (int, tree);
4748 extern tree build_ptrmemfunc1 (tree, tree, tree);
4749 extern void expand_ptrmemfunc_cst (tree, tree *, tree *);
4750 extern tree type_after_usual_arithmetic_conversions (tree, tree);
4751 extern tree composite_pointer_type (tree, tree, tree, tree,
4753 extern tree merge_types (tree, tree);
4754 extern tree check_return_expr (tree, bool *);
4755 #define cp_build_binary_op(code, arg1, arg2) \
4756 build_binary_op(code, arg1, arg2, 1)
4757 #define cxx_sizeof(T) cxx_sizeof_or_alignof_type (T, SIZEOF_EXPR, true)
4758 extern tree build_ptrmemfunc_access_expr (tree, tree);
4759 extern tree build_address (tree);
4760 extern tree build_nop (tree, tree);
4761 extern tree non_reference (tree);
4762 extern tree lookup_anon_field (tree, tree);
4763 extern bool invalid_nonstatic_memfn_p (tree);
4764 extern tree convert_member_func_to_ptr (tree, tree);
4765 extern tree convert_ptrmem (tree, tree, bool, bool);
4766 extern int lvalue_or_else (tree, enum lvalue_use);
4767 extern int lvalue_p (tree);
4770 extern void require_complete_eh_spec_types (tree, tree);
4771 extern void cxx_incomplete_type_diagnostic (tree, tree, int);
4772 #undef cxx_incomplete_type_error
4773 extern void cxx_incomplete_type_error (tree, tree);
4774 #define cxx_incomplete_type_error(V,T) \
4775 (cxx_incomplete_type_diagnostic ((V), (T), 0))
4776 extern tree error_not_base_type (tree, tree);
4777 extern tree binfo_or_else (tree, tree);
4778 extern void readonly_error (tree, const char *);
4779 extern void complete_type_check_abstract (tree);
4780 extern int abstract_virtuals_error (tree, tree);
4782 extern tree store_init_value (tree, tree);
4783 extern tree digest_init (tree, tree);
4784 extern tree build_scoped_ref (tree, tree, tree *);
4785 extern tree build_x_arrow (tree);
4786 extern tree build_m_component_ref (tree, tree);
4787 extern tree build_functional_cast (tree, tree);
4788 extern tree add_exception_specifier (tree, tree, int);
4789 extern tree merge_exception_specifiers (tree, tree);
4792 extern void init_mangle (void);
4793 extern void mangle_decl (tree);
4794 extern const char *mangle_type_string (tree);
4795 extern tree mangle_typeinfo_for_type (tree);
4796 extern tree mangle_typeinfo_string_for_type (tree);
4797 extern tree mangle_vtbl_for_type (tree);
4798 extern tree mangle_vtt_for_type (tree);
4799 extern tree mangle_ctor_vtbl_for_type (tree, tree);
4800 extern tree mangle_thunk (tree, int, tree, tree);
4801 extern tree mangle_conv_op_name_for_type (tree);
4802 extern tree mangle_guard_variable (tree);
4803 extern tree mangle_ref_init_variable (tree);
4806 extern bool cp_dump_tree (void *, tree);
4808 /* In cp/cp-objcp-common.c. */
4810 extern HOST_WIDE_INT cxx_get_alias_set (tree);
4811 extern bool cxx_warn_unused_global_decl (tree);
4812 extern tree cp_expr_size (tree);
4813 extern size_t cp_tree_size (enum tree_code);
4814 extern bool cp_var_mod_type_p (tree, tree);
4815 extern void cxx_initialize_diagnostics (struct diagnostic_context *);
4816 extern int cxx_types_compatible_p (tree, tree);
4817 extern void init_shadowed_var_for_decl (void);
4818 extern tree cxx_staticp (tree);
4820 /* in cp-gimplify.c */
4821 extern int cp_gimplify_expr (tree *, tree *, tree *);
4822 extern void cp_genericize (tree);
4826 /* In order for the format checking to accept the C++ front end
4827 diagnostic framework extensions, you must include this file before
4828 toplev.h, not after. We override the definition of GCC_DIAG_STYLE
4830 #undef GCC_DIAG_STYLE
4831 #define GCC_DIAG_STYLE __gcc_cxxdiag__
4832 #if GCC_VERSION >= 4001
4833 #define ATTRIBUTE_GCC_CXXDIAG(m, n) __attribute__ ((__format__ (GCC_DIAG_STYLE, m, n))) ATTRIBUTE_NONNULL(m)
4835 #define ATTRIBUTE_GCC_CXXDIAG(m, n) ATTRIBUTE_NONNULL(m)
4837 extern void cp_cpp_error (cpp_reader *, int,
4838 const char *, va_list *)
4839 ATTRIBUTE_GCC_CXXDIAG(3,0);
4841 #endif /* ! GCC_CP_TREE_H */