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 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, 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, 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 BIND_EXPR_TRY_BLOCK (in BIND_EXPR)
51 TYPENAME_IS_ENUM_P (in TYPENAME_TYPE)
52 REFERENCE_REF_P (in INDIRECT_EXPR)
53 1: IDENTIFIER_VIRTUAL_P (in IDENTIFIER_NODE)
54 TI_PENDING_TEMPLATE_FLAG.
55 TEMPLATE_PARMS_FOR_INLINE.
56 DELETE_EXPR_USE_VEC (in DELETE_EXPR).
57 (TREE_CALLS_NEW) (in _EXPR or _REF) (commented-out).
58 ICS_ELLIPSIS_FLAG (in _CONV)
59 DECL_INITIALIZED_P (in VAR_DECL)
60 TYPENAME_IS_CLASS_P (in TYPENAME_TYPE)
61 2: IDENTIFIER_OPNAME_P (in IDENTIFIER_NODE)
62 ICS_THIS_FLAG (in _CONV)
63 DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (in VAR_DECL)
64 STATEMENT_LIST_TRY_BLOCK (in STATEMENT_LIST)
65 3: (TREE_REFERENCE_EXPR) (in NON_LVALUE_EXPR) (commented-out).
66 ICS_BAD_FLAG (in _CONV)
67 FN_TRY_BLOCK_P (in TRY_BLOCK)
68 IDENTIFIER_CTOR_OR_DTOR_P (in IDENTIFIER_NODE)
69 BIND_EXPR_BODY_BLOCK (in BIND_EXPR)
70 4: TREE_HAS_CONSTRUCTOR (in INDIRECT_REF, SAVE_EXPR, CONSTRUCTOR,
72 IDENTIFIER_TYPENAME_P (in IDENTIFIER_NODE)
73 DECL_TINFO_P (in VAR_DECL)
74 5: C_IS_RESERVED_WORD (in IDENTIFIER_NODE)
75 DECL_VTABLE_OR_VTT_P (in VAR_DECL)
76 6: IDENTIFIER_REPO_CHOSEN (in IDENTIFIER_NODE)
77 DECL_CONSTRUCTION_VTABLE_P (in VAR_DECL)
78 TYPE_MARKED_P (in _TYPE)
80 Usage of TYPE_LANG_FLAG_?:
82 1: TYPE_HAS_CONSTRUCTOR.
85 4: TYPE_HAS_NONTRIVIAL_DESTRUCTOR
87 6: TYPE_DEPENDENT_P_VALID
89 Usage of DECL_LANG_FLAG_?:
90 0: DECL_ERROR_REPORTED (in VAR_DECL).
91 DECL_TEMPLATE_PARM_P (in PARM_DECL, CONST_DECL, TYPE_DECL, or TEMPLATE_DECL)
92 DECL_LOCAL_FUNCTION_P (in FUNCTION_DECL)
93 DECL_MUTABLE_P (in FIELD_DECL)
94 1: C_TYPEDEF_EXPLICITLY_SIGNED (in TYPE_DECL).
95 DECL_TEMPLATE_INSTANTIATED (in a VAR_DECL or a FUNCTION_DECL)
96 DECL_MEMBER_TEMPLATE_P (in TEMPLATE_DECL)
97 2: DECL_THIS_EXTERN (in VAR_DECL or FUNCTION_DECL).
98 DECL_IMPLICIT_TYPEDEF_P (in a TYPE_DECL)
100 4: DECL_C_BIT_FIELD (in a FIELD_DECL)
101 DECL_VAR_MARKED_P (in a VAR_DECL)
102 DECL_SELF_REFERENCE_P (in a TYPE_DECL)
103 DECL_INVALID_OVERRIDER_P (in a FUNCTION_DECL)
104 5: DECL_INTERFACE_KNOWN.
105 6: DECL_THIS_STATIC (in VAR_DECL or FUNCTION_DECL).
106 DECL_FIELD_IS_BASE (in FIELD_DECL)
107 7: DECL_DEAD_FOR_LOCAL (in VAR_DECL).
108 DECL_THUNK_P (in a member FUNCTION_DECL)
110 Usage of language-independent fields in a language-dependent manner:
113 This field is used by TYPENAME_TYPEs, TEMPLATE_TYPE_PARMs, and so
114 forth as a substitute for the mark bits provided in `lang_type'.
115 At present, only the six low-order bits are used.
118 For an ENUMERAL_TYPE, this is ENUM_TEMPLATE_INFO.
119 For a FUNCTION_TYPE or METHOD_TYPE, this is TYPE_RAISES_EXCEPTIONS
122 For a binfo, this is a TREE_LIST. There is an entry for each
123 virtual function declared either in BINFO or its direct and
124 indirect primary bases.
126 The BV_DELTA of each node gives the amount by which to adjust the
127 `this' pointer when calling the function. If the method is an
128 overridden version of a base class method, then it is assumed
129 that, prior to adjustment, the this pointer points to an object
132 The BV_VCALL_INDEX of each node, if non-NULL, gives the vtable
133 index of the vcall offset for this entry.
135 The BV_FN is the declaration for the virtual function itself.
138 This is an expression with POINTER_TYPE that gives the value
139 to which the vptr should be initialized. Use get_vtbl_decl_for_binfo
140 to extract the VAR_DECL for the complete vtable.
143 For a VAR_DECL this is DECL_ANON_UNION_ELEMS.
146 This field is NULL for a non-virtual function. For a virtual
147 function, it is eventually set to an INTEGER_CST indicating the
148 index in the vtable at which this function can be found. When
149 a virtual function is declared, but before it is known what
150 function is overridden, this field is the error_mark_node.
152 Temporarily, it may be set to a TREE_LIST whose TREE_VALUE is
153 the virtual function this one overrides, and whose TREE_CHAIN is
154 the old DECL_VINDEX. */
156 /* Language-specific tree checkers. */
158 #define VAR_OR_FUNCTION_DECL_CHECK(NODE) \
159 TREE_CHECK2(NODE,VAR_DECL,FUNCTION_DECL)
161 #define VAR_FUNCTION_OR_PARM_DECL_CHECK(NODE) \
162 TREE_CHECK3(NODE,VAR_DECL,FUNCTION_DECL,PARM_DECL)
164 #define VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK(NODE) \
165 TREE_CHECK4(NODE,VAR_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL)
167 #define BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK(NODE) \
168 TREE_CHECK(NODE,BOUND_TEMPLATE_TEMPLATE_PARM)
170 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
171 #define NON_THUNK_FUNCTION_CHECK(NODE) __extension__ \
172 ({ const tree __t = (NODE); \
173 if (TREE_CODE (__t) != FUNCTION_DECL && \
174 TREE_CODE (__t) != TEMPLATE_DECL && __t->decl.lang_specific \
175 && __t->decl.lang_specific->decl_flags.thunk_p) \
176 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, 0); \
178 #define THUNK_FUNCTION_CHECK(NODE) __extension__ \
179 ({ const tree __t = (NODE); \
180 if (TREE_CODE (__t) != FUNCTION_DECL || !__t->decl.lang_specific \
181 || !__t->decl.lang_specific->decl_flags.thunk_p) \
182 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, 0); \
185 #define NON_THUNK_FUNCTION_CHECK(NODE) (NODE)
186 #define THUNK_FUNCTION_CHECK(NODE) (NODE)
189 /* Language-dependent contents of an identifier. */
191 struct lang_identifier GTY(())
193 struct c_common_identifier c_common;
194 cxx_binding *namespace_bindings;
195 cxx_binding *bindings;
196 tree class_template_info;
200 /* In an IDENTIFIER_NODE, nonzero if this identifier is actually a
201 keyword. C_RID_CODE (node) is then the RID_* value of the keyword,
202 and C_RID_YYCODE is the token number wanted by Yacc. */
204 #define C_IS_RESERVED_WORD(ID) TREE_LANG_FLAG_5 (ID)
206 #define LANG_IDENTIFIER_CAST(NODE) \
207 ((struct lang_identifier*)IDENTIFIER_NODE_CHECK (NODE))
209 struct template_parm_index_s GTY(())
211 struct tree_common common;
214 HOST_WIDE_INT orig_level;
217 typedef struct template_parm_index_s template_parm_index;
219 struct tinst_level_s GTY(())
221 struct tree_common common;
224 int in_system_header_p;
226 typedef struct tinst_level_s * tinst_level_t;
228 struct ptrmem_cst GTY(())
230 struct tree_common common;
231 /* This isn't used, but the middle-end expects all constants to have
236 typedef struct ptrmem_cst * ptrmem_cst_t;
238 #define IDENTIFIER_GLOBAL_VALUE(NODE) \
239 namespace_binding ((NODE), global_namespace)
240 #define SET_IDENTIFIER_GLOBAL_VALUE(NODE, VAL) \
241 set_namespace_binding ((NODE), global_namespace, (VAL))
242 #define IDENTIFIER_NAMESPACE_VALUE(NODE) \
243 namespace_binding ((NODE), current_namespace)
244 #define SET_IDENTIFIER_NAMESPACE_VALUE(NODE, VAL) \
245 set_namespace_binding ((NODE), current_namespace, (VAL))
247 #define CLEANUP_P(NODE) TREE_LANG_FLAG_0 (TRY_BLOCK_CHECK (NODE))
249 #define BIND_EXPR_TRY_BLOCK(NODE) \
250 TREE_LANG_FLAG_0 (BIND_EXPR_CHECK (NODE))
252 /* Used to mark the block around the member initializers and cleanups. */
253 #define BIND_EXPR_BODY_BLOCK(NODE) \
254 TREE_LANG_FLAG_3 (BIND_EXPR_CHECK (NODE))
256 #define STATEMENT_LIST_NO_SCOPE(NODE) \
257 TREE_LANG_FLAG_0 (STATEMENT_LIST_CHECK (NODE))
258 #define STATEMENT_LIST_TRY_BLOCK(NODE) \
259 TREE_LANG_FLAG_2 (STATEMENT_LIST_CHECK (NODE))
261 /* Marks the result of a statement expression. */
262 #define EXPR_STMT_STMT_EXPR_RESULT(NODE) \
263 TREE_LANG_FLAG_0 (EXPR_STMT_CHECK (NODE))
265 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, in the usual
267 #define same_type_p(TYPE1, TYPE2) \
268 comptypes ((TYPE1), (TYPE2), COMPARE_STRICT)
270 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, ignoring
271 top-level qualifiers. */
272 #define same_type_ignoring_top_level_qualifiers_p(TYPE1, TYPE2) \
273 same_type_p (TYPE_MAIN_VARIANT (TYPE1), TYPE_MAIN_VARIANT (TYPE2))
275 /* Nonzero if we are presently building a statement tree, rather
276 than expanding each statement as we encounter it. */
277 #define building_stmt_tree() (cur_stmt_list != NULL_TREE)
279 /* Returns nonzero iff NODE is a declaration for the global function
281 #define DECL_MAIN_P(NODE) \
282 (DECL_EXTERN_C_FUNCTION_P (NODE) \
283 && DECL_NAME (NODE) != NULL_TREE \
284 && MAIN_NAME_P (DECL_NAME (NODE)))
286 /* The overloaded FUNCTION_DECL. */
287 #define OVL_FUNCTION(NODE) \
288 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->function)
289 #define OVL_CHAIN(NODE) TREE_CHAIN (NODE)
290 /* Polymorphic access to FUNCTION and CHAIN. */
291 #define OVL_CURRENT(NODE) \
292 ((TREE_CODE (NODE) == OVERLOAD) ? OVL_FUNCTION (NODE) : (NODE))
293 #define OVL_NEXT(NODE) \
294 ((TREE_CODE (NODE) == OVERLOAD) ? TREE_CHAIN (NODE) : NULL_TREE)
295 /* If set, this was imported in a using declaration.
296 This is not to confuse with being used somewhere, which
297 is not important for this node. */
298 #define OVL_USED(NODE) TREE_USED (NODE)
300 struct tree_overload GTY(())
302 struct tree_common common;
306 /* Returns true iff NODE is a BASELINK. */
307 #define BASELINK_P(NODE) \
308 (TREE_CODE (NODE) == BASELINK)
309 /* The BINFO indicating the base from which the BASELINK_FUNCTIONS came. */
310 #define BASELINK_BINFO(NODE) \
311 (((struct tree_baselink*) BASELINK_CHECK (NODE))->binfo)
312 /* The functions referred to by the BASELINK; either a FUNCTION_DECL,
313 a TEMPLATE_DECL, an OVERLOAD, or a TEMPLATE_ID_EXPR. */
314 #define BASELINK_FUNCTIONS(NODE) \
315 (((struct tree_baselink*) BASELINK_CHECK (NODE))->functions)
316 /* The BINFO in which the search for the functions indicated by this baselink
317 began. This base is used to determine the accessibility of functions
318 selected by overload resolution. */
319 #define BASELINK_ACCESS_BINFO(NODE) \
320 (((struct tree_baselink*) BASELINK_CHECK (NODE))->access_binfo)
321 /* For a type-conversion operator, the BASELINK_OPTYPE indicates the type
322 to which the conversion should occur. This value is important if
323 the BASELINK_FUNCTIONS include a template conversion operator --
324 the BASELINK_OPTYPE can be used to determine what type the user
326 #define BASELINK_OPTYPE(NODE) \
327 (TREE_CHAIN (BASELINK_CHECK (NODE)))
329 struct tree_baselink GTY(())
331 struct tree_common common;
337 /* The different kinds of ids that we encounter. */
339 typedef enum cp_id_kind
341 /* Not an id at all. */
343 /* An unqualified-id that is not a template-id. */
344 CP_ID_KIND_UNQUALIFIED,
345 /* An unqualified-id that is a dependent name. */
346 CP_ID_KIND_UNQUALIFIED_DEPENDENT,
347 /* An unqualified template-id. */
348 CP_ID_KIND_TEMPLATE_ID,
349 /* A qualified-id. */
353 /* Macros for access to language-specific slots in an identifier. */
355 #define IDENTIFIER_NAMESPACE_BINDINGS(NODE) \
356 (LANG_IDENTIFIER_CAST (NODE)->namespace_bindings)
357 #define IDENTIFIER_TEMPLATE(NODE) \
358 (LANG_IDENTIFIER_CAST (NODE)->class_template_info)
360 /* The IDENTIFIER_BINDING is the innermost cxx_binding for the
361 identifier. It's PREVIOUS is the next outermost binding. Each
362 VALUE field is a DECL for the associated declaration. Thus,
363 name lookup consists simply of pulling off the node at the front
364 of the list (modulo oddities for looking up the names of types,
365 and such.) You can use SCOPE field to determine the scope
366 that bound the name. */
367 #define IDENTIFIER_BINDING(NODE) \
368 (LANG_IDENTIFIER_CAST (NODE)->bindings)
370 /* TREE_TYPE only indicates on local and class scope the current
371 type. For namespace scope, the presence of a type in any namespace
372 is indicated with global_type_node, and the real type behind must
373 be found through lookup. */
374 #define IDENTIFIER_TYPE_VALUE(NODE) identifier_type_value (NODE)
375 #define REAL_IDENTIFIER_TYPE_VALUE(NODE) TREE_TYPE (NODE)
376 #define SET_IDENTIFIER_TYPE_VALUE(NODE,TYPE) (TREE_TYPE (NODE) = (TYPE))
377 #define IDENTIFIER_HAS_TYPE_VALUE(NODE) (IDENTIFIER_TYPE_VALUE (NODE) ? 1 : 0)
379 #define IDENTIFIER_LABEL_VALUE(NODE) \
380 (LANG_IDENTIFIER_CAST (NODE)->label_value)
381 #define SET_IDENTIFIER_LABEL_VALUE(NODE, VALUE) \
382 IDENTIFIER_LABEL_VALUE (NODE) = (VALUE)
384 /* Nonzero if this identifier is used as a virtual function name somewhere
385 (optimizes searches). */
386 #define IDENTIFIER_VIRTUAL_P(NODE) TREE_LANG_FLAG_1 (NODE)
388 /* Nonzero if this identifier is the prefix for a mangled C++ operator
390 #define IDENTIFIER_OPNAME_P(NODE) TREE_LANG_FLAG_2 (NODE)
392 /* Nonzero if this identifier is the name of a type-conversion
394 #define IDENTIFIER_TYPENAME_P(NODE) \
395 TREE_LANG_FLAG_4 (NODE)
397 /* Nonzero if this identifier is the name of a constructor or
399 #define IDENTIFIER_CTOR_OR_DTOR_P(NODE) \
400 TREE_LANG_FLAG_3 (NODE)
402 /* True iff NAME is the DECL_ASSEMBLER_NAME for an entity with vague
403 linkage which the prelinker has assigned to this translation
405 #define IDENTIFIER_REPO_CHOSEN(NAME) \
406 (TREE_LANG_FLAG_6 (NAME))
408 /* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */
409 #define C_TYPE_FIELDS_READONLY(TYPE) \
410 (LANG_TYPE_CLASS_CHECK (TYPE)->fields_readonly)
412 /* The tokens stored in the default argument. */
414 #define DEFARG_TOKENS(NODE) \
415 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->tokens)
417 struct tree_default_arg GTY (())
419 struct tree_common common;
420 struct cp_token_cache *tokens;
423 enum cp_tree_node_structure_enum {
437 /* The resulting tree type. */
438 union lang_tree_node GTY((desc ("cp_tree_node_structure (&%h)"),
439 chain_next ("(union lang_tree_node *)TREE_CHAIN (&%h.generic)")))
441 union tree_node GTY ((tag ("TS_CP_GENERIC"),
442 desc ("tree_node_structure (&%h)"))) generic;
443 struct template_parm_index_s GTY ((tag ("TS_CP_TPI"))) tpi;
444 struct tinst_level_s GTY ((tag ("TS_CP_TINST_LEVEL"))) tinst_level;
445 struct ptrmem_cst GTY ((tag ("TS_CP_PTRMEM"))) ptrmem;
446 struct tree_overload GTY ((tag ("TS_CP_OVERLOAD"))) overload;
447 struct tree_baselink GTY ((tag ("TS_CP_BASELINK"))) baselink;
448 struct tree_default_arg GTY ((tag ("TS_CP_DEFAULT_ARG"))) default_arg;
449 struct lang_identifier GTY ((tag ("TS_CP_IDENTIFIER"))) identifier;
456 CPTI_JAVA_SHORT_TYPE,
459 CPTI_JAVA_FLOAT_TYPE,
460 CPTI_JAVA_DOUBLE_TYPE,
462 CPTI_JAVA_BOOLEAN_TYPE,
465 CPTI_VTABLE_ENTRY_TYPE,
467 CPTI_VTABLE_INDEX_TYPE,
477 CPTI_CLASS_DESC_TYPE,
478 CPTI_SI_CLASS_DESC_TYPE,
479 CPTI_VMI_CLASS_DESC_TYPE,
489 CPTI_CONST_TYPE_INFO_TYPE,
490 CPTI_TYPE_INFO_PTR_TYPE,
492 CPTI_GLOBAL_DELETE_FNDECL,
495 CPTI_CTOR_IDENTIFIER,
496 CPTI_COMPLETE_CTOR_IDENTIFIER,
497 CPTI_BASE_CTOR_IDENTIFIER,
498 CPTI_DTOR_IDENTIFIER,
499 CPTI_COMPLETE_DTOR_IDENTIFIER,
500 CPTI_BASE_DTOR_IDENTIFIER,
501 CPTI_DELETING_DTOR_IDENTIFIER,
502 CPTI_DELTA_IDENTIFIER,
503 CPTI_IN_CHARGE_IDENTIFIER,
504 CPTI_VTT_PARM_IDENTIFIER,
505 CPTI_NELTS_IDENTIFIER,
506 CPTI_THIS_IDENTIFIER,
508 CPTI_VPTR_IDENTIFIER,
512 CPTI_LANG_NAME_CPLUSPLUS,
515 CPTI_EMPTY_EXCEPT_SPEC,
519 CPTI_CALL_UNEXPECTED,
529 extern GTY(()) tree cp_global_trees[CPTI_MAX];
531 #define java_byte_type_node cp_global_trees[CPTI_JAVA_BYTE_TYPE]
532 #define java_short_type_node cp_global_trees[CPTI_JAVA_SHORT_TYPE]
533 #define java_int_type_node cp_global_trees[CPTI_JAVA_INT_TYPE]
534 #define java_long_type_node cp_global_trees[CPTI_JAVA_LONG_TYPE]
535 #define java_float_type_node cp_global_trees[CPTI_JAVA_FLOAT_TYPE]
536 #define java_double_type_node cp_global_trees[CPTI_JAVA_DOUBLE_TYPE]
537 #define java_char_type_node cp_global_trees[CPTI_JAVA_CHAR_TYPE]
538 #define java_boolean_type_node cp_global_trees[CPTI_JAVA_BOOLEAN_TYPE]
540 #define wchar_decl_node cp_global_trees[CPTI_WCHAR_DECL]
541 #define vtable_entry_type cp_global_trees[CPTI_VTABLE_ENTRY_TYPE]
542 /* The type used to represent an offset by which to adjust the `this'
543 pointer in pointer-to-member types. */
544 #define delta_type_node cp_global_trees[CPTI_DELTA_TYPE]
545 /* The type used to represent an index into the vtable. */
546 #define vtable_index_type cp_global_trees[CPTI_VTABLE_INDEX_TYPE]
548 #define ti_desc_type_node cp_global_trees[CPTI_TI_DESC_TYPE]
549 #define bltn_desc_type_node cp_global_trees[CPTI_BLTN_DESC_TYPE]
550 #define ptr_desc_type_node cp_global_trees[CPTI_PTR_DESC_TYPE]
551 #define ary_desc_type_node cp_global_trees[CPTI_ARY_DESC_TYPE]
552 #define func_desc_type_node cp_global_trees[CPTI_FUNC_DESC_TYPE]
553 #define enum_desc_type_node cp_global_trees[CPTI_ENUM_DESC_TYPE]
554 #define class_desc_type_node cp_global_trees[CPTI_CLASS_DESC_TYPE]
555 #define si_class_desc_type_node cp_global_trees[CPTI_SI_CLASS_DESC_TYPE]
556 #define vmi_class_desc_type_node cp_global_trees[CPTI_VMI_CLASS_DESC_TYPE]
557 #define ptm_desc_type_node cp_global_trees[CPTI_PTM_DESC_TYPE]
558 #define base_desc_type_node cp_global_trees[CPTI_BASE_DESC_TYPE]
560 #define class_type_node cp_global_trees[CPTI_CLASS_TYPE]
561 #define unknown_type_node cp_global_trees[CPTI_UNKNOWN_TYPE]
562 #define vtbl_type_node cp_global_trees[CPTI_VTBL_TYPE]
563 #define vtbl_ptr_type_node cp_global_trees[CPTI_VTBL_PTR_TYPE]
564 #define std_node cp_global_trees[CPTI_STD]
565 #define abi_node cp_global_trees[CPTI_ABI]
566 #define const_type_info_type_node cp_global_trees[CPTI_CONST_TYPE_INFO_TYPE]
567 #define type_info_ptr_type cp_global_trees[CPTI_TYPE_INFO_PTR_TYPE]
568 #define abort_fndecl cp_global_trees[CPTI_ABORT_FNDECL]
569 #define global_delete_fndecl cp_global_trees[CPTI_GLOBAL_DELETE_FNDECL]
570 #define current_aggr cp_global_trees[CPTI_AGGR_TAG]
572 /* We cache these tree nodes so as to call get_identifier less
575 /* The name of a constructor that takes an in-charge parameter to
576 decide whether or not to construct virtual base classes. */
577 #define ctor_identifier cp_global_trees[CPTI_CTOR_IDENTIFIER]
578 /* The name of a constructor that constructs virtual base classes. */
579 #define complete_ctor_identifier cp_global_trees[CPTI_COMPLETE_CTOR_IDENTIFIER]
580 /* The name of a constructor that does not construct virtual base classes. */
581 #define base_ctor_identifier cp_global_trees[CPTI_BASE_CTOR_IDENTIFIER]
582 /* The name of a destructor that takes an in-charge parameter to
583 decide whether or not to destroy virtual base classes and whether
584 or not to delete the object. */
585 #define dtor_identifier cp_global_trees[CPTI_DTOR_IDENTIFIER]
586 /* The name of a destructor that destroys virtual base classes. */
587 #define complete_dtor_identifier cp_global_trees[CPTI_COMPLETE_DTOR_IDENTIFIER]
588 /* The name of a destructor that does not destroy virtual base
590 #define base_dtor_identifier cp_global_trees[CPTI_BASE_DTOR_IDENTIFIER]
591 /* The name of a destructor that destroys virtual base classes, and
592 then deletes the entire object. */
593 #define deleting_dtor_identifier cp_global_trees[CPTI_DELETING_DTOR_IDENTIFIER]
594 #define delta_identifier cp_global_trees[CPTI_DELTA_IDENTIFIER]
595 #define in_charge_identifier cp_global_trees[CPTI_IN_CHARGE_IDENTIFIER]
596 /* The name of the parameter that contains a pointer to the VTT to use
597 for this subobject constructor or destructor. */
598 #define vtt_parm_identifier cp_global_trees[CPTI_VTT_PARM_IDENTIFIER]
599 #define nelts_identifier cp_global_trees[CPTI_NELTS_IDENTIFIER]
600 #define this_identifier cp_global_trees[CPTI_THIS_IDENTIFIER]
601 #define pfn_identifier cp_global_trees[CPTI_PFN_IDENTIFIER]
602 #define vptr_identifier cp_global_trees[CPTI_VPTR_IDENTIFIER]
603 /* The name of the std namespace. */
604 #define std_identifier cp_global_trees[CPTI_STD_IDENTIFIER]
605 #define lang_name_c cp_global_trees[CPTI_LANG_NAME_C]
606 #define lang_name_cplusplus cp_global_trees[CPTI_LANG_NAME_CPLUSPLUS]
607 #define lang_name_java cp_global_trees[CPTI_LANG_NAME_JAVA]
609 /* Exception specifier used for throw(). */
610 #define empty_except_spec cp_global_trees[CPTI_EMPTY_EXCEPT_SPEC]
612 /* The node for `__null'. */
613 #define null_node cp_global_trees[CPTI_NULL]
615 /* If non-NULL, a POINTER_TYPE equivalent to (java::lang::Class*). */
616 #define jclass_node cp_global_trees[CPTI_JCLASS]
618 /* The declaration for `std::terminate'. */
619 #define terminate_node cp_global_trees[CPTI_TERMINATE]
621 /* The declaration for "__cxa_call_unexpected". */
622 #define call_unexpected_node cp_global_trees[CPTI_CALL_UNEXPECTED]
624 /* A pointer to `std::atexit'. */
625 #define atexit_node cp_global_trees[CPTI_ATEXIT]
627 /* A pointer to `__dso_handle'. */
628 #define dso_handle_node cp_global_trees[CPTI_DSO_HANDLE]
630 /* The declaration of the dynamic_cast runtime. */
631 #define dynamic_cast_node cp_global_trees[CPTI_DCAST]
633 /* The type of a destructor. */
634 #define cleanup_type cp_global_trees[CPTI_CLEANUP_TYPE]
636 /* The type of the vtt parameter passed to subobject constructors and
638 #define vtt_parm_type cp_global_trees[CPTI_VTT_PARM_TYPE]
640 /* A TREE_LIST of the dynamic classes whose vtables may have to be
641 emitted in this translation unit. */
643 #define keyed_classes cp_global_trees[CPTI_KEYED_CLASSES]
645 /* Node to indicate default access. This must be distinct from the
646 access nodes in tree.h. */
648 #define access_default_node null_node
652 struct saved_scope GTY(())
654 VEC(cxx_saved_binding) *old_bindings;
659 tree access_specifier;
661 varray_type lang_base;
664 struct cp_binding_level *x_previous_class_level;
667 HOST_WIDE_INT x_processing_template_decl;
668 int x_processing_specialization;
669 bool x_processing_explicit_instantiation;
670 int need_pop_function_context;
672 struct stmt_tree_s x_stmt_tree;
674 struct cp_binding_level *class_bindings;
675 struct cp_binding_level *bindings;
677 struct saved_scope *prev;
680 /* The current open namespace. */
682 #define current_namespace scope_chain->old_namespace
684 /* The stack for namespaces of current declarations. */
686 #define decl_namespace_list scope_chain->decl_ns_list
688 /* IDENTIFIER_NODE: name of current class */
690 #define current_class_name scope_chain->class_name
692 /* _TYPE: the type of the current class */
694 #define current_class_type scope_chain->class_type
696 /* When parsing a class definition, the access specifier most recently
697 given by the user, or, if no access specifier was given, the
698 default value appropriate for the kind of class (i.e., struct,
701 #define current_access_specifier scope_chain->access_specifier
703 /* Pointer to the top of the language name stack. */
705 #define current_lang_base scope_chain->lang_base
706 #define current_lang_name scope_chain->lang_name
708 /* Parsing a function declarator leaves a list of parameter names
709 or a chain or parameter decls here. */
711 #define current_template_parms scope_chain->template_parms
713 #define processing_template_decl scope_chain->x_processing_template_decl
714 #define processing_specialization scope_chain->x_processing_specialization
715 #define processing_explicit_instantiation scope_chain->x_processing_explicit_instantiation
717 /* The cached class binding level, from the most recently exited
718 class, or NULL if none. */
720 #define previous_class_level scope_chain->x_previous_class_level
722 /* A list of private types mentioned, for deferred access checking. */
724 extern GTY(()) struct saved_scope *scope_chain;
726 /* Global state pertinent to the current function. */
728 struct language_function GTY(())
730 struct c_language_function base;
733 tree x_current_class_ptr;
734 tree x_current_class_ref;
735 tree x_eh_spec_block;
736 tree x_in_charge_parm;
742 int returns_abnormally;
743 int in_function_try_handler;
744 int in_base_initializer;
746 /* True if this function can throw an exception. */
747 BOOL_BITFIELD can_throw : 1;
749 struct named_label_use_list *x_named_label_uses;
750 struct named_label_list *x_named_labels;
751 struct cp_binding_level *bindings;
752 varray_type x_local_names;
755 /* The current C++-specific per-function global variables. */
757 #define cp_function_chain (cfun->language)
759 /* In a constructor destructor, the point at which all derived class
760 destroying/construction has been has been done. Ie. just before a
761 constructor returns, or before any base class destroying will be done
764 #define cdtor_label cp_function_chain->x_cdtor_label
766 /* When we're processing a member function, current_class_ptr is the
767 PARM_DECL for the `this' pointer. The current_class_ref is an
768 expression for `*this'. */
770 #define current_class_ptr \
771 (cfun ? cp_function_chain->x_current_class_ptr : NULL_TREE)
772 #define current_class_ref \
773 (cfun ? cp_function_chain->x_current_class_ref : NULL_TREE)
775 /* The EH_SPEC_BLOCK for the exception-specifiers for the current
778 #define current_eh_spec_block cp_function_chain->x_eh_spec_block
780 /* The `__in_chrg' parameter for the current function. Only used for
781 constructors and destructors. */
783 #define current_in_charge_parm cp_function_chain->x_in_charge_parm
785 /* The `__vtt_parm' parameter for the current function. Only used for
786 constructors and destructors. */
788 #define current_vtt_parm cp_function_chain->x_vtt_parm
790 /* Set to 0 at beginning of a function definition, set to 1 if
791 a return statement that specifies a return value is seen. */
793 #define current_function_returns_value cp_function_chain->returns_value
795 /* Set to 0 at beginning of a function definition, set to 1 if
796 a return statement with no argument is seen. */
798 #define current_function_returns_null cp_function_chain->returns_null
800 /* Set to 0 at beginning of a function definition, set to 1 if
801 a call to a noreturn function is seen. */
803 #define current_function_returns_abnormally \
804 cp_function_chain->returns_abnormally
806 /* Nonzero if we are processing a base initializer. Zero elsewhere. */
807 #define in_base_initializer cp_function_chain->in_base_initializer
809 #define in_function_try_handler cp_function_chain->in_function_try_handler
811 /* Expression always returned from function, or error_mark_node
812 otherwise, for use by the automatic named return value optimization. */
814 #define current_function_return_value \
815 (cp_function_chain->x_return_value)
817 /* True if NAME is the IDENTIFIER_NODE for an overloaded "operator
818 new" or "operator delete". */
819 #define NEW_DELETE_OPNAME_P(NAME) \
820 ((NAME) == ansi_opname (NEW_EXPR) \
821 || (NAME) == ansi_opname (VEC_NEW_EXPR) \
822 || (NAME) == ansi_opname (DELETE_EXPR) \
823 || (NAME) == ansi_opname (VEC_DELETE_EXPR))
825 #define ansi_opname(CODE) \
826 (operator_name_info[(int) (CODE)].identifier)
827 #define ansi_assopname(CODE) \
828 (assignment_operator_name_info[(int) (CODE)].identifier)
830 /* True if NODE is an erroneous expression. */
832 #define error_operand_p(NODE) \
833 ((NODE) == error_mark_node \
834 || ((NODE) && TREE_TYPE ((NODE)) == error_mark_node))
836 /* C++ language-specific tree codes. */
837 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) SYM,
838 enum cplus_tree_code {
839 CP_DUMMY_TREE_CODE = LAST_C_TREE_CODE,
840 #include "cp-tree.def"
845 #define cp_stmt_codes \
846 CTOR_INITIALIZER, TRY_BLOCK, HANDLER, \
847 EH_SPEC_BLOCK, USING_STMT, TAG_DEFN, \
848 IF_STMT, CLEANUP_STMT, FOR_STMT, \
849 WHILE_STMT, DO_STMT, BREAK_STMT, \
850 CONTINUE_STMT, SWITCH_STMT
851 enum languages { lang_c, lang_cplusplus, lang_java };
853 /* Macros to make error reporting functions' lives easier. */
854 #define TYPE_IDENTIFIER(NODE) (DECL_NAME (TYPE_NAME (NODE)))
855 #define TYPE_LINKAGE_IDENTIFIER(NODE) \
856 (TYPE_IDENTIFIER (TYPE_MAIN_VARIANT (NODE)))
857 #define TYPE_NAME_STRING(NODE) (IDENTIFIER_POINTER (TYPE_IDENTIFIER (NODE)))
858 #define TYPE_NAME_LENGTH(NODE) (IDENTIFIER_LENGTH (TYPE_IDENTIFIER (NODE)))
860 /* Nonzero if NODE has no name for linkage purposes. */
861 #define TYPE_ANONYMOUS_P(NODE) \
862 (TAGGED_TYPE_P (NODE) && ANON_AGGRNAME_P (TYPE_LINKAGE_IDENTIFIER (NODE)))
864 /* The _DECL for this _TYPE. */
865 #define TYPE_MAIN_DECL(NODE) (TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE)))
867 /* Nonzero if T is a class (or struct or union) type. Also nonzero
868 for template type parameters, typename types, and instantiated
869 template template parameters. Despite its name,
870 this macro has nothing to do with the definition of aggregate given
871 in the standard. Think of this macro as MAYBE_CLASS_TYPE_P. Keep
872 these checks in ascending code order. */
873 #define IS_AGGR_TYPE(T) \
874 (TREE_CODE (T) == TEMPLATE_TYPE_PARM \
875 || TREE_CODE (T) == TYPENAME_TYPE \
876 || TREE_CODE (T) == TYPEOF_TYPE \
877 || TREE_CODE (T) == BOUND_TEMPLATE_TEMPLATE_PARM \
878 || TYPE_LANG_FLAG_5 (T))
880 /* Set IS_AGGR_TYPE for T to VAL. T must be a class, struct, or
882 #define SET_IS_AGGR_TYPE(T, VAL) \
883 (TYPE_LANG_FLAG_5 (T) = (VAL))
885 /* Nonzero if T is a class type. Zero for template type parameters,
886 typename types, and so forth. */
887 #define CLASS_TYPE_P(T) \
888 (IS_AGGR_TYPE_CODE (TREE_CODE (T)) && TYPE_LANG_FLAG_5 (T))
890 /* Keep these checks in ascending code order. */
891 #define IS_AGGR_TYPE_CODE(T) \
892 ((T) == RECORD_TYPE || (T) == UNION_TYPE)
893 #define TAGGED_TYPE_P(T) \
894 (CLASS_TYPE_P (T) || TREE_CODE (T) == ENUMERAL_TYPE)
895 #define IS_OVERLOAD_TYPE(T) TAGGED_TYPE_P (T)
897 /* True if this a "Java" type, defined in 'extern "Java"'. */
898 #define TYPE_FOR_JAVA(NODE) TYPE_LANG_FLAG_3 (NODE)
900 /* True if this type is dependent. This predicate is only valid if
901 TYPE_DEPENDENT_P_VALID is true. */
902 #define TYPE_DEPENDENT_P(NODE) TYPE_LANG_FLAG_0 (NODE)
904 /* True if dependent_type_p has been called for this type, with the
905 result that TYPE_DEPENDENT_P is valid. */
906 #define TYPE_DEPENDENT_P_VALID(NODE) TYPE_LANG_FLAG_6(NODE)
908 /* Nonzero if this type is const-qualified. */
909 #define CP_TYPE_CONST_P(NODE) \
910 ((cp_type_quals (NODE) & TYPE_QUAL_CONST) != 0)
912 /* Nonzero if this type is volatile-qualified. */
913 #define CP_TYPE_VOLATILE_P(NODE) \
914 ((cp_type_quals (NODE) & TYPE_QUAL_VOLATILE) != 0)
916 /* Nonzero if this type is restrict-qualified. */
917 #define CP_TYPE_RESTRICT_P(NODE) \
918 ((cp_type_quals (NODE) & TYPE_QUAL_RESTRICT) != 0)
920 /* Nonzero if this type is const-qualified, but not
921 volatile-qualified. Other qualifiers are ignored. This macro is
922 used to test whether or not it is OK to bind an rvalue to a
924 #define CP_TYPE_CONST_NON_VOLATILE_P(NODE) \
925 ((cp_type_quals (NODE) & (TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE)) \
928 #define FUNCTION_ARG_CHAIN(NODE) \
929 TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (NODE)))
931 /* Given a FUNCTION_DECL, returns the first TREE_LIST out of TYPE_ARG_TYPES
932 which refers to a user-written parameter. */
933 #define FUNCTION_FIRST_USER_PARMTYPE(NODE) \
934 skip_artificial_parms_for ((NODE), TYPE_ARG_TYPES (TREE_TYPE (NODE)))
936 /* Similarly, but for DECL_ARGUMENTS. */
937 #define FUNCTION_FIRST_USER_PARM(NODE) \
938 skip_artificial_parms_for ((NODE), DECL_ARGUMENTS (NODE))
940 #define PROMOTES_TO_AGGR_TYPE(NODE, CODE) \
941 (((CODE) == TREE_CODE (NODE) \
942 && IS_AGGR_TYPE (TREE_TYPE (NODE))) \
943 || IS_AGGR_TYPE (NODE))
945 /* Nonzero iff TYPE is derived from PARENT. Ignores accessibility and
947 #define DERIVED_FROM_P(PARENT, TYPE) \
948 (lookup_base ((TYPE), (PARENT), ba_any, NULL) != NULL_TREE)
949 /* Nonzero iff TYPE is uniquely derived from PARENT. Ignores
951 #define UNIQUELY_DERIVED_FROM_P(PARENT, TYPE) \
952 (lookup_base ((TYPE), (PARENT), ba_unique | ba_quiet, NULL) != NULL_TREE)
953 /* Nonzero iff TYPE is publicly & uniquely derived from PARENT. */
954 #define PUBLICLY_UNIQUELY_DERIVED_P(PARENT, TYPE) \
955 (lookup_base ((TYPE), (PARENT), ba_ignore_scope | ba_check | ba_quiet, \
958 /* Gives the visibility specification for a class type. */
959 #define CLASSTYPE_VISIBILITY(TYPE) \
960 DECL_VISIBILITY (TYPE_NAME (TYPE))
961 #define CLASSTYPE_VISIBILITY_SPECIFIED(TYPE) \
962 DECL_VISIBILITY_SPECIFIED (TYPE_NAME (TYPE))
964 typedef struct tree_pair_s GTY (())
969 typedef tree_pair_s *tree_pair_p;
970 DEF_VEC_GC_O (tree_pair_s);
972 /* This is a few header flags for 'struct lang_type'. Actually,
973 all but the first are used only for lang_type_class; they
974 are put in this structure to save space. */
975 struct lang_type_header GTY(())
977 BOOL_BITFIELD is_lang_type_class : 1;
979 BOOL_BITFIELD has_type_conversion : 1;
980 BOOL_BITFIELD has_init_ref : 1;
981 BOOL_BITFIELD has_default_ctor : 1;
982 BOOL_BITFIELD const_needs_init : 1;
983 BOOL_BITFIELD ref_needs_init : 1;
984 BOOL_BITFIELD has_const_assign_ref : 1;
986 BOOL_BITFIELD spare : 1;
989 /* This structure provides additional information above and beyond
990 what is provide in the ordinary tree_type. In the past, we used it
991 for the types of class types, template parameters types, typename
992 types, and so forth. However, there can be many (tens to hundreds
993 of thousands) of template parameter types in a compilation, and
994 there's no need for this additional information in that case.
995 Therefore, we now use this data structure only for class types.
997 In the past, it was thought that there would be relatively few
998 class types. However, in the presence of heavy use of templates,
999 many (i.e., thousands) of classes can easily be generated.
1000 Therefore, we should endeavor to keep the size of this structure to
1002 struct lang_type_class GTY(())
1004 struct lang_type_header h;
1006 unsigned char align;
1008 unsigned has_mutable : 1;
1009 unsigned com_interface : 1;
1010 unsigned non_pod_class : 1;
1011 unsigned nearly_empty_p : 1;
1012 unsigned user_align : 1;
1013 unsigned has_assign_ref : 1;
1014 unsigned has_new : 1;
1015 unsigned has_array_new : 1;
1017 unsigned gets_delete : 2;
1018 unsigned interface_only : 1;
1019 unsigned interface_unknown : 1;
1020 unsigned contains_empty_class_p : 1;
1021 unsigned anon_aggr : 1;
1022 unsigned non_zero_init : 1;
1023 unsigned empty_p : 1;
1025 unsigned vec_new_uses_cookie : 1;
1026 unsigned declared_class : 1;
1027 unsigned diamond_shaped : 1;
1028 unsigned repeated_base : 1;
1029 unsigned being_defined : 1;
1030 unsigned redefined : 1;
1031 unsigned debug_requested : 1;
1032 unsigned fields_readonly : 1;
1034 unsigned use_template : 2;
1035 unsigned ptrmemfunc_flag : 1;
1036 unsigned was_anonymous : 1;
1037 unsigned lazy_default_ctor : 1;
1038 unsigned lazy_copy_ctor : 1;
1039 unsigned lazy_assignment_op : 1;
1040 unsigned lazy_destructor : 1;
1042 unsigned has_const_init_ref : 1;
1043 unsigned has_complex_init_ref : 1;
1044 unsigned has_complex_assign_ref : 1;
1045 unsigned non_aggregate : 1;
1046 unsigned java_interface : 1;
1048 /* When adding a flag here, consider whether or not it ought to
1049 apply to a template instance if it applies to the template. If
1050 so, make sure to copy it in instantiate_class_template! */
1052 /* There are some bits left to fill out a 32-bit word. Keep track
1053 of this by updating the size of this bitfield whenever you add or
1055 unsigned dummy : 11;
1058 VEC (tree_pair_s) *vcall_indices;
1062 binding_table nested_udts;
1064 VEC (tree) *pure_virtuals;
1065 tree friend_classes;
1066 VEC (tree) * GTY((reorder ("resort_type_method_vec"))) methods;
1070 tree befriending_classes;
1071 /* In a RECORD_TYPE, information specific to Objective-C++, such
1072 as a list of adopted protocols or a pointer to a corresponding
1073 @interface. See objc/objc-act.h for details. */
1077 struct lang_type_ptrmem GTY(())
1079 struct lang_type_header h;
1083 struct lang_type GTY(())
1087 struct lang_type_header GTY((skip (""))) h;
1088 struct lang_type_class GTY((tag ("1"))) c;
1089 struct lang_type_ptrmem GTY((tag ("0"))) ptrmem;
1090 } GTY((desc ("%h.h.is_lang_type_class"))) u;
1093 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1095 #define LANG_TYPE_CLASS_CHECK(NODE) __extension__ \
1096 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1097 if (! lt->u.h.is_lang_type_class) \
1098 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1101 #define LANG_TYPE_PTRMEM_CHECK(NODE) __extension__ \
1102 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1103 if (lt->u.h.is_lang_type_class) \
1104 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1109 #define LANG_TYPE_CLASS_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.c)
1110 #define LANG_TYPE_PTRMEM_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.ptrmem)
1112 #endif /* ENABLE_TREE_CHECKING */
1114 /* Indicates whether or not (and how) a template was expanded for this class.
1115 0=no information yet/non-template class
1116 1=implicit template instantiation
1117 2=explicit template specialization
1118 3=explicit template instantiation */
1119 #define CLASSTYPE_USE_TEMPLATE(NODE) \
1120 (LANG_TYPE_CLASS_CHECK (NODE)->use_template)
1122 /* Fields used for storing information before the class is defined.
1123 After the class is defined, these fields hold other information. */
1125 /* VEC(tree) of friends which were defined inline in this class
1127 #define CLASSTYPE_INLINE_FRIENDS(NODE) CLASSTYPE_PURE_VIRTUALS (NODE)
1129 /* Nonzero for _CLASSTYPE means that operator delete is defined. */
1130 #define TYPE_GETS_DELETE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->gets_delete)
1131 #define TYPE_GETS_REG_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 1)
1133 /* Nonzero if `new NODE[x]' should cause the allocation of extra
1134 storage to indicate how many array elements are in use. */
1135 #define TYPE_VEC_NEW_USES_COOKIE(NODE) \
1136 (CLASS_TYPE_P (NODE) \
1137 && LANG_TYPE_CLASS_CHECK (NODE)->vec_new_uses_cookie)
1139 /* Nonzero means that this _CLASSTYPE node defines ways of converting
1140 itself to other types. */
1141 #define TYPE_HAS_CONVERSION(NODE) \
1142 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_type_conversion)
1144 /* Nonzero means that NODE (a class type) has a default constructor --
1145 but that it has not yet been declared. */
1146 #define CLASSTYPE_LAZY_DEFAULT_CTOR(NODE) \
1147 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_default_ctor)
1149 /* Nonzero means that NODE (a class type) has a copy constructor --
1150 but that it has not yet been declared. */
1151 #define CLASSTYPE_LAZY_COPY_CTOR(NODE) \
1152 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_ctor)
1154 /* Nonzero means that NODE (a class type) has an assignment operator
1155 -- but that it has not yet been declared. */
1156 #define CLASSTYPE_LAZY_ASSIGNMENT_OP(NODE) \
1157 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_assignment_op)
1159 /* Nonzero means that NODE (a class type) has a destructor -- but that
1160 it has not yet been declared. */
1161 #define CLASSTYPE_LAZY_DESTRUCTOR(NODE) \
1162 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_destructor)
1164 /* Nonzero means that this _CLASSTYPE node overloads operator=(X&). */
1165 #define TYPE_HAS_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_assign_ref)
1167 /* True iff the class type NODE has an "operator =" whose parameter
1168 has a parameter of type "const X&". */
1169 #define TYPE_HAS_CONST_ASSIGN_REF(NODE) \
1170 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_const_assign_ref)
1172 /* Nonzero means that this _CLASSTYPE node has an X(X&) constructor. */
1173 #define TYPE_HAS_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->h.has_init_ref)
1174 #define TYPE_HAS_CONST_INIT_REF(NODE) \
1175 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_init_ref)
1177 /* Nonzero if this class defines an overloaded operator new. (An
1178 operator new [] doesn't count.) */
1179 #define TYPE_HAS_NEW_OPERATOR(NODE) \
1180 (LANG_TYPE_CLASS_CHECK (NODE)->has_new)
1182 /* Nonzero if this class defines an overloaded operator new[]. */
1183 #define TYPE_HAS_ARRAY_NEW_OPERATOR(NODE) \
1184 (LANG_TYPE_CLASS_CHECK (NODE)->has_array_new)
1186 /* Nonzero means that this type is being defined. I.e., the left brace
1187 starting the definition of this type has been seen. */
1188 #define TYPE_BEING_DEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->being_defined)
1189 /* Nonzero means that this type has been redefined. In this case, if
1190 convenient, don't reprocess any methods that appear in its redefinition. */
1191 #define TYPE_REDEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->redefined)
1193 /* Mark bits for repeated base checks. */
1194 #define TYPE_MARKED_P(NODE) TREE_LANG_FLAG_6 (TYPE_CHECK (NODE))
1196 /* Non-zero if the class NODE has multiple paths to the same (virtual)
1198 #define CLASSTYPE_DIAMOND_SHAPED_P(NODE) \
1199 (LANG_TYPE_CLASS_CHECK(NODE)->diamond_shaped)
1201 /* Non-zero if the class NODE has multiple instances of the same base
1203 #define CLASSTYPE_REPEATED_BASE_P(NODE) \
1204 (LANG_TYPE_CLASS_CHECK(NODE)->repeated_base)
1206 /* The member function with which the vtable will be emitted:
1207 the first noninline non-pure-virtual member function. NULL_TREE
1208 if there is no key function or if this is a class template */
1209 #define CLASSTYPE_KEY_METHOD(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->key_method)
1211 /* Vector member functions defined in this class. Each element is
1212 either a FUNCTION_DECL, a TEMPLATE_DECL, or an OVERLOAD. All
1213 functions with the same name end up in the same slot. The first
1214 two elements are for constructors, and destructors, respectively.
1215 All template conversion operators to innermost template dependent
1216 types are overloaded on the next slot, if they exist. Note, the
1217 names for these functions will not all be the same. The
1218 non-template conversion operators & templated conversions to
1219 non-innermost template types are next, followed by ordinary member
1220 functions. There may be empty entries at the end of the vector.
1221 The conversion operators are unsorted. The ordinary member
1222 functions are sorted, once the class is complete. */
1223 #define CLASSTYPE_METHOD_VEC(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->methods)
1225 /* For class templates, this is a TREE_LIST of all member data,
1226 functions, types, and friends in the order of declaration.
1227 The TREE_PURPOSE of each TREE_LIST is NULL_TREE for a friend,
1228 and the RECORD_TYPE for the class template otherwise. */
1229 #define CLASSTYPE_DECL_LIST(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->decl_list)
1231 /* The slot in the CLASSTYPE_METHOD_VEC where constructors go. */
1232 #define CLASSTYPE_CONSTRUCTOR_SLOT 0
1234 /* The slot in the CLASSTYPE_METHOD_VEC where destructors go. */
1235 #define CLASSTYPE_DESTRUCTOR_SLOT 1
1237 /* The first slot in the CLASSTYPE_METHOD_VEC where conversion
1238 operators can appear. */
1239 #define CLASSTYPE_FIRST_CONVERSION_SLOT 2
1241 /* A FUNCTION_DECL or OVERLOAD for the constructors for NODE. These
1242 are the constructors that take an in-charge parameter. */
1243 #define CLASSTYPE_CONSTRUCTORS(NODE) \
1244 (VEC_index (tree, CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_CONSTRUCTOR_SLOT))
1246 /* A FUNCTION_DECL for the destructor for NODE. These are the
1247 destructors that take an in-charge parameter. If
1248 CLASSTYPE_LAZY_DESTRUCTOR is true, then this entry will be NULL
1249 until the destructor is created with lazily_declare_fn. */
1250 #define CLASSTYPE_DESTRUCTORS(NODE) \
1251 (CLASSTYPE_METHOD_VEC (NODE) \
1252 ? VEC_index (tree, CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_DESTRUCTOR_SLOT) \
1255 /* A dictionary of the nested user-defined-types (class-types, or enums)
1256 found within this class. This table includes nested member class
1258 #define CLASSTYPE_NESTED_UTDS(NODE) \
1259 (LANG_TYPE_CLASS_CHECK (NODE)->nested_udts)
1261 /* Nonzero if NODE has a primary base class, i.e., a base class with
1262 which it shares the virtual function table pointer. */
1263 #define CLASSTYPE_HAS_PRIMARY_BASE_P(NODE) \
1264 (CLASSTYPE_PRIMARY_BINFO (NODE) != NULL_TREE)
1266 /* If non-NULL, this is the binfo for the primary base class, i.e.,
1267 the base class which contains the virtual function table pointer
1269 #define CLASSTYPE_PRIMARY_BINFO(NODE) \
1270 (LANG_TYPE_CLASS_CHECK (NODE)->primary_base)
1272 /* A vector of BINFOs for the direct and indirect virtual base classes
1273 that this type uses in a post-order depth-first left-to-right
1274 order. (In other words, these bases appear in the order that they
1275 should be initialized.) */
1276 #define CLASSTYPE_VBASECLASSES(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->vbases)
1278 /* The type corresponding to NODE when NODE is used as a base class,
1279 i.e., NODE without virtual base classes. */
1281 #define CLASSTYPE_AS_BASE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->as_base)
1283 /* True iff NODE is the CLASSTYPE_AS_BASE version of some type. */
1285 #define IS_FAKE_BASE_TYPE(NODE) \
1286 (TREE_CODE (NODE) == RECORD_TYPE \
1287 && TYPE_CONTEXT (NODE) && CLASS_TYPE_P (TYPE_CONTEXT (NODE)) \
1288 && CLASSTYPE_AS_BASE (TYPE_CONTEXT (NODE)) == (NODE))
1290 /* These are the size and alignment of the type without its virtual
1291 base classes, for when we use this type as a base itself. */
1292 #define CLASSTYPE_SIZE(NODE) TYPE_SIZE (CLASSTYPE_AS_BASE (NODE))
1293 #define CLASSTYPE_SIZE_UNIT(NODE) TYPE_SIZE_UNIT (CLASSTYPE_AS_BASE (NODE))
1294 #define CLASSTYPE_ALIGN(NODE) TYPE_ALIGN (CLASSTYPE_AS_BASE (NODE))
1295 #define CLASSTYPE_USER_ALIGN(NODE) TYPE_USER_ALIGN (CLASSTYPE_AS_BASE (NODE))
1297 /* The alignment of NODE, without its virtual bases, in bytes. */
1298 #define CLASSTYPE_ALIGN_UNIT(NODE) \
1299 (CLASSTYPE_ALIGN (NODE) / BITS_PER_UNIT)
1301 /* True if this a Java interface type, declared with
1302 '__attribute__ ((java_interface))'. */
1303 #define TYPE_JAVA_INTERFACE(NODE) \
1304 (LANG_TYPE_CLASS_CHECK (NODE)->java_interface)
1306 /* A VEC(tree) of virtual functions which cannot be inherited by
1307 derived classes. When deriving from this type, the derived
1308 class must provide its own definition for each of these functions. */
1309 #define CLASSTYPE_PURE_VIRTUALS(NODE) \
1310 (LANG_TYPE_CLASS_CHECK (NODE)->pure_virtuals)
1312 /* Nonzero means that this type has an X() constructor. */
1313 #define TYPE_HAS_DEFAULT_CONSTRUCTOR(NODE) \
1314 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_default_ctor)
1316 /* Nonzero means that this type contains a mutable member. */
1317 #define CLASSTYPE_HAS_MUTABLE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_mutable)
1318 #define TYPE_HAS_MUTABLE_P(NODE) (cp_has_mutable_p (NODE))
1320 /* Nonzero means that this class type is a non-POD class. */
1321 #define CLASSTYPE_NON_POD_P(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->non_pod_class)
1323 /* Nonzero means that this class contains pod types whose default
1324 initialization is not a zero initialization (namely, pointers to
1326 #define CLASSTYPE_NON_ZERO_INIT_P(NODE) \
1327 (LANG_TYPE_CLASS_CHECK (NODE)->non_zero_init)
1329 /* Nonzero if this class is "empty" in the sense of the C++ ABI. */
1330 #define CLASSTYPE_EMPTY_P(NODE) \
1331 (LANG_TYPE_CLASS_CHECK (NODE)->empty_p)
1333 /* Nonzero if this class is "nearly empty", i.e., contains only a
1334 virtual function table pointer. */
1335 #define CLASSTYPE_NEARLY_EMPTY_P(NODE) \
1336 (LANG_TYPE_CLASS_CHECK (NODE)->nearly_empty_p)
1338 /* Nonzero if this class contains an empty subobject. */
1339 #define CLASSTYPE_CONTAINS_EMPTY_CLASS_P(NODE) \
1340 (LANG_TYPE_CLASS_CHECK (NODE)->contains_empty_class_p)
1342 /* A list of class types of which this type is a friend. The
1343 TREE_VALUE is normally a TYPE, but will be a TEMPLATE_DECL in the
1344 case of a template friend. */
1345 #define CLASSTYPE_FRIEND_CLASSES(NODE) \
1346 (LANG_TYPE_CLASS_CHECK (NODE)->friend_classes)
1348 /* A list of the classes which grant friendship to this class. */
1349 #define CLASSTYPE_BEFRIENDING_CLASSES(NODE) \
1350 (LANG_TYPE_CLASS_CHECK (NODE)->befriending_classes)
1352 /* Say whether this node was declared as a "class" or a "struct". */
1353 #define CLASSTYPE_DECLARED_CLASS(NODE) \
1354 (LANG_TYPE_CLASS_CHECK (NODE)->declared_class)
1356 /* Nonzero if this class has const members
1357 which have no specified initialization. */
1358 #define CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE) \
1359 (TYPE_LANG_SPECIFIC (NODE) \
1360 ? LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init : 0)
1361 #define SET_CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE, VALUE) \
1362 (LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init = (VALUE))
1364 /* Nonzero if this class has ref members
1365 which have no specified initialization. */
1366 #define CLASSTYPE_REF_FIELDS_NEED_INIT(NODE) \
1367 (TYPE_LANG_SPECIFIC (NODE) \
1368 ? LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init : 0)
1369 #define SET_CLASSTYPE_REF_FIELDS_NEED_INIT(NODE, VALUE) \
1370 (LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init = (VALUE))
1372 /* Nonzero if this class is included from a header file which employs
1373 `#pragma interface', and it is not included in its implementation file. */
1374 #define CLASSTYPE_INTERFACE_ONLY(NODE) \
1375 (LANG_TYPE_CLASS_CHECK (NODE)->interface_only)
1377 /* True if we have already determined whether or not vtables, VTTs,
1378 typeinfo, and other similar per-class data should be emitted in
1379 this translation unit. This flag does not indicate whether or not
1380 these items should be emitted; it only indicates that we know one
1381 way or the other. */
1382 #define CLASSTYPE_INTERFACE_KNOWN(NODE) \
1383 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown == 0)
1384 /* The opposite of CLASSTYPE_INTERFACE_KNOWN. */
1385 #define CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1386 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown)
1388 #define SET_CLASSTYPE_INTERFACE_UNKNOWN_X(NODE,X) \
1389 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = !!(X))
1390 #define SET_CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1391 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 1)
1392 #define SET_CLASSTYPE_INTERFACE_KNOWN(NODE) \
1393 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 0)
1395 /* Nonzero if a _DECL node requires us to output debug info for this class. */
1396 #define CLASSTYPE_DEBUG_REQUESTED(NODE) \
1397 (LANG_TYPE_CLASS_CHECK (NODE)->debug_requested)
1399 /* Additional macros for inheritance information. */
1401 /* Nonzero means that this class is on a path leading to a new vtable. */
1402 #define BINFO_VTABLE_PATH_MARKED(NODE) BINFO_FLAG_1 (NODE)
1404 /* Nonzero means B (a BINFO) has its own vtable. Any copies will not
1405 have this flag set. */
1406 #define BINFO_NEW_VTABLE_MARKED(B) (BINFO_FLAG_2 (B))
1408 /* Compare a BINFO_TYPE with another type for equality. For a binfo,
1409 this is functionally equivalent to using same_type_p, but
1410 measurably faster. At least one of the arguments must be a
1411 BINFO_TYPE. The other can be a BINFO_TYPE or a regular type. If
1412 BINFO_TYPE(T) ever stops being the main variant of the class the
1413 binfo is for, this macro must change. */
1414 #define SAME_BINFO_TYPE_P(A, B) ((A) == (B))
1416 /* Any subobject that needs a new vtable must have a vptr and must not
1417 be a non-virtual primary base (since it would then use the vtable from a
1418 derived class and never become non-primary.) */
1419 #define SET_BINFO_NEW_VTABLE_MARKED(B) \
1420 (BINFO_NEW_VTABLE_MARKED (B) = 1, \
1421 gcc_assert (!BINFO_PRIMARY_P (B) || BINFO_VIRTUAL_P (B)), \
1422 gcc_assert (TYPE_VFIELD (BINFO_TYPE (B))))
1424 /* Nonzero if this binfo is for a dependent base - one that should not
1426 #define BINFO_DEPENDENT_BASE_P(NODE) BINFO_FLAG_3 (NODE)
1428 /* Nonzero if this binfo has lost its primary base binfo (because that
1429 is a nearly-empty virtual base that has been taken by some other
1430 base in the complete hierarchy. */
1431 #define BINFO_LOST_PRIMARY_P(NODE) BINFO_FLAG_4 (NODE)
1433 /* Nonzero if this BINFO is a primary base class. */
1434 #define BINFO_PRIMARY_P(NODE) BINFO_FLAG_5(NODE)
1436 /* Used by various search routines. */
1437 #define IDENTIFIER_MARKED(NODE) TREE_LANG_FLAG_0 (NODE)
1439 /* A VEC(tree_pair_s) of the vcall indices associated with the class
1440 NODE. The PURPOSE of each element is a FUNCTION_DECL for a virtual
1441 function. The VALUE is the index into the virtual table where the
1442 vcall offset for that function is stored, when NODE is a virtual
1444 #define CLASSTYPE_VCALL_INDICES(NODE) \
1445 (LANG_TYPE_CLASS_CHECK (NODE)->vcall_indices)
1447 /* The various vtables for the class NODE. The primary vtable will be
1448 first, followed by the construction vtables and VTT, if any. */
1449 #define CLASSTYPE_VTABLES(NODE) \
1450 (LANG_TYPE_CLASS_CHECK (NODE)->vtables)
1452 /* The std::type_info variable representing this class, or NULL if no
1453 such variable has been created. This field is only set for the
1454 TYPE_MAIN_VARIANT of the class. */
1455 #define CLASSTYPE_TYPEINFO_VAR(NODE) \
1456 (LANG_TYPE_CLASS_CHECK (NODE)->typeinfo_var)
1458 /* Accessor macros for the vfield slots in structures. */
1460 /* Get the BINFO that introduced this vtable into the hierarchy (will
1461 be NULL for those created at this level, or from a primary
1463 #define VF_BINFO_VALUE(NODE) TREE_PURPOSE (NODE)
1465 /* Get the TYPE that introduced this vtable into the hierarchy (always
1467 #define VF_BASETYPE_VALUE(NODE) TREE_VALUE (NODE)
1469 /* Accessor macros for the BINFO_VIRTUALS list. */
1471 /* The number of bytes by which to adjust the `this' pointer when
1472 calling this virtual function. Subtract this value from the this
1473 pointer. Always non-NULL, might be constant zero though. */
1474 #define BV_DELTA(NODE) (TREE_PURPOSE (NODE))
1476 /* If non-NULL, the vtable index at which to find the vcall offset
1477 when calling this virtual function. Add the value at that vtable
1478 index to the this pointer. */
1479 #define BV_VCALL_INDEX(NODE) (TREE_TYPE (NODE))
1481 /* The function to call. */
1482 #define BV_FN(NODE) (TREE_VALUE (NODE))
1485 /* For FUNCTION_TYPE or METHOD_TYPE, a list of the exceptions that
1486 this type can raise. Each TREE_VALUE is a _TYPE. The TREE_VALUE
1487 will be NULL_TREE to indicate a throw specification of `()', or
1488 no exceptions allowed. */
1489 #define TYPE_RAISES_EXCEPTIONS(NODE) TYPE_LANG_SLOT_1 (NODE)
1491 /* For FUNCTION_TYPE or METHOD_TYPE, return 1 iff it is declared `throw()'. */
1492 #define TYPE_NOTHROW_P(NODE) \
1493 (TYPE_RAISES_EXCEPTIONS (NODE) \
1494 && TREE_VALUE (TYPE_RAISES_EXCEPTIONS (NODE)) == NULL_TREE)
1496 /* The binding level associated with the namespace. */
1497 #define NAMESPACE_LEVEL(NODE) \
1498 (DECL_LANG_SPECIFIC (NODE)->decl_flags.u.level)
1501 /* If a DECL has DECL_LANG_SPECIFIC, it is either a lang_decl_flags or
1502 a lang_decl (which has lang_decl_flags as its initial prefix).
1503 This macro is nonzero for tree nodes whose DECL_LANG_SPECIFIC is
1504 the full lang_decl, and not just lang_decl_flags. Keep these
1505 checks in ascending code order. */
1506 #define CAN_HAVE_FULL_LANG_DECL_P(NODE) \
1507 (!(TREE_CODE (NODE) == FIELD_DECL \
1508 || TREE_CODE (NODE) == VAR_DECL \
1509 || TREE_CODE (NODE) == CONST_DECL \
1510 || TREE_CODE (NODE) == USING_DECL))
1512 struct lang_decl_flags GTY(())
1514 ENUM_BITFIELD(languages) language : 4;
1515 unsigned global_ctor_p : 1;
1516 unsigned global_dtor_p : 1;
1517 unsigned anticipated_p : 1;
1518 unsigned template_conv_p : 1;
1520 unsigned operator_attr : 1;
1521 unsigned constructor_attr : 1;
1522 unsigned destructor_attr : 1;
1523 unsigned friend_attr : 1;
1524 unsigned static_function : 1;
1525 unsigned pure_virtual : 1;
1526 unsigned has_in_charge_parm_p : 1;
1527 unsigned has_vtt_parm_p : 1;
1529 unsigned deferred : 1;
1530 unsigned use_template : 2;
1531 unsigned nonconverting : 1;
1532 unsigned not_really_extern : 1;
1533 unsigned initialized_in_class : 1;
1534 unsigned assignment_operator_p : 1;
1538 unsigned can_be_full : 1;
1539 unsigned thunk_p : 1;
1540 unsigned this_thunk_p : 1;
1541 unsigned repo_available_p : 1;
1545 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
1547 In a FUNCTION_DECL for which DECL_THUNK_P does not hold,
1548 VAR_DECL, TYPE_DECL, or TEMPLATE_DECL, this is
1549 DECL_TEMPLATE_INFO. */
1550 tree GTY ((tag ("0"))) template_info;
1552 /* In a NAMESPACE_DECL, this is NAMESPACE_LEVEL. */
1553 struct cp_binding_level * GTY ((tag ("1"))) level;
1554 } GTY ((desc ("%1.u1sel"))) u;
1556 union lang_decl_u2 {
1557 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
1558 THUNK_VIRTUAL_OFFSET.
1559 Otherwise this is DECL_ACCESS. */
1560 tree GTY ((tag ("0"))) access;
1562 /* For VAR_DECL in function, this is DECL_DISCRIMINATOR. */
1563 int GTY ((tag ("1"))) discriminator;
1564 } GTY ((desc ("%1.u2sel"))) u2;
1567 /* sorted_fields is sorted based on a pointer, so we need to be able
1568 to resort it if pointers get rearranged. */
1570 struct lang_decl GTY(())
1572 struct lang_decl_flags decl_flags;
1576 struct full_lang_decl
1578 /* In an overloaded operator, this is the value of
1579 DECL_OVERLOADED_OPERATOR_P. */
1580 ENUM_BITFIELD (tree_code) operator_code : 8;
1583 unsigned pending_inline_p : 1;
1584 unsigned spare : 22;
1586 /* For a non-thunk function decl, this is a tree list of
1587 friendly classes. For a thunk function decl, it is the
1588 thunked to function decl. */
1589 tree befriending_classes;
1591 /* For a non-virtual FUNCTION_DECL, this is
1592 DECL_FRIEND_CONTEXT. For a virtual FUNCTION_DECL for which
1593 DECL_THIS_THUNK_P does not hold, this is DECL_THUNKS. Both
1594 this pointer and result pointer adjusting thunks are
1595 chained here. This pointer thunks to return pointer thunks
1596 will be chained on the return pointer thunk. */
1601 /* In a non-thunk FUNCTION_DECL or TEMPLATE_DECL, this is
1602 DECL_CLONED_FUNCTION. */
1603 tree GTY ((tag ("0"))) cloned_function;
1605 /* In a FUNCTION_DECL for which THUNK_P holds this is the
1606 THUNK_FIXED_OFFSET. */
1607 HOST_WIDE_INT GTY ((tag ("1"))) fixed_offset;
1608 } GTY ((desc ("%0.decl_flags.thunk_p"))) u5;
1612 struct sorted_fields_type * GTY ((tag ("0"), reorder ("resort_sorted_fields")))
1614 struct cp_token_cache * GTY ((tag ("2"))) pending_inline_info;
1615 struct language_function * GTY ((tag ("1")))
1616 saved_language_function;
1617 } GTY ((desc ("%1.u3sel + %1.pending_inline_p"))) u;
1618 } GTY ((tag ("1"))) f;
1619 } GTY ((desc ("%1.decl_flags.can_be_full"))) u;
1622 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1624 #define LANG_DECL_U2_CHECK(NODE, TF) __extension__ \
1625 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
1626 if (lt->decl_flags.u2sel != TF) \
1627 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1628 <->decl_flags.u2; })
1632 #define LANG_DECL_U2_CHECK(NODE, TF) \
1633 (&DECL_LANG_SPECIFIC (NODE)->decl_flags.u2)
1635 #endif /* ENABLE_TREE_CHECKING */
1637 /* For a FUNCTION_DECL or a VAR_DECL, the language linkage for the
1638 declaration. Some entities (like a member function in a local
1639 class, or a local variable) do not have linkage at all, and this
1640 macro should not be used in those cases.
1642 Implementation note: A FUNCTION_DECL without DECL_LANG_SPECIFIC was
1643 created by language-independent code, and has C linkage. Most
1644 VAR_DECLs have C++ linkage, and do not have DECL_LANG_SPECIFIC, but
1645 we do create DECL_LANG_SPECIFIC for variables with non-C++ linkage. */
1646 #define DECL_LANGUAGE(NODE) \
1647 (DECL_LANG_SPECIFIC (NODE) \
1648 ? DECL_LANG_SPECIFIC (NODE)->decl_flags.language \
1649 : (TREE_CODE (NODE) == FUNCTION_DECL \
1650 ? lang_c : lang_cplusplus))
1652 /* Set the language linkage for NODE to LANGUAGE. */
1653 #define SET_DECL_LANGUAGE(NODE, LANGUAGE) \
1654 (DECL_LANG_SPECIFIC (NODE)->decl_flags.language = (LANGUAGE))
1656 /* For FUNCTION_DECLs: nonzero means that this function is a constructor. */
1657 #define DECL_CONSTRUCTOR_P(NODE) \
1658 (DECL_LANG_SPECIFIC (NODE)->decl_flags.constructor_attr)
1660 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a complete
1662 #define DECL_COMPLETE_CONSTRUCTOR_P(NODE) \
1663 (DECL_CONSTRUCTOR_P (NODE) \
1664 && DECL_NAME (NODE) == complete_ctor_identifier)
1666 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a base
1668 #define DECL_BASE_CONSTRUCTOR_P(NODE) \
1669 (DECL_CONSTRUCTOR_P (NODE) \
1670 && DECL_NAME (NODE) == base_ctor_identifier)
1672 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor, but not either the
1673 specialized in-charge constructor or the specialized not-in-charge
1675 #define DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P(NODE) \
1676 (DECL_CONSTRUCTOR_P (NODE) && !DECL_CLONED_FUNCTION_P (NODE))
1678 /* Nonzero if NODE (a FUNCTION_DECL) is a copy constructor. */
1679 #define DECL_COPY_CONSTRUCTOR_P(NODE) \
1680 (DECL_CONSTRUCTOR_P (NODE) && copy_fn_p (NODE) > 0)
1682 /* Nonzero if NODE is a destructor. */
1683 #define DECL_DESTRUCTOR_P(NODE) \
1684 (DECL_LANG_SPECIFIC (NODE)->decl_flags.destructor_attr)
1686 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor, but not the
1687 specialized in-charge constructor, in-charge deleting constructor,
1688 or the base destructor. */
1689 #define DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P(NODE) \
1690 (DECL_DESTRUCTOR_P (NODE) && !DECL_CLONED_FUNCTION_P (NODE))
1692 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
1694 #define DECL_COMPLETE_DESTRUCTOR_P(NODE) \
1695 (DECL_DESTRUCTOR_P (NODE) \
1696 && DECL_NAME (NODE) == complete_dtor_identifier)
1698 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a base
1700 #define DECL_BASE_DESTRUCTOR_P(NODE) \
1701 (DECL_DESTRUCTOR_P (NODE) \
1702 && DECL_NAME (NODE) == base_dtor_identifier)
1704 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
1705 object that deletes the object after it has been destroyed. */
1706 #define DECL_DELETING_DESTRUCTOR_P(NODE) \
1707 (DECL_DESTRUCTOR_P (NODE) \
1708 && DECL_NAME (NODE) == deleting_dtor_identifier)
1710 /* Nonzero if NODE (a FUNCTION_DECL) is a cloned constructor or
1712 #define DECL_CLONED_FUNCTION_P(NODE) \
1713 ((TREE_CODE (NODE) == FUNCTION_DECL \
1714 || TREE_CODE (NODE) == TEMPLATE_DECL) \
1715 && DECL_LANG_SPECIFIC (NODE) \
1716 && !DECL_LANG_SPECIFIC (NODE)->decl_flags.thunk_p \
1717 && DECL_CLONED_FUNCTION (NODE) != NULL_TREE)
1719 /* If DECL_CLONED_FUNCTION_P holds, this is the function that was
1721 #define DECL_CLONED_FUNCTION(NODE) \
1722 (DECL_LANG_SPECIFIC (NON_THUNK_FUNCTION_CHECK(NODE))->u.f.u5.cloned_function)
1724 /* Perform an action for each clone of FN, if FN is a function with
1725 clones. This macro should be used like:
1727 FOR_EACH_CLONE (clone, fn)
1731 #define FOR_EACH_CLONE(CLONE, FN) \
1732 if (TREE_CODE (FN) == FUNCTION_DECL \
1733 && (DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (FN) \
1734 || DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (FN))) \
1735 for (CLONE = TREE_CHAIN (FN); \
1736 CLONE && DECL_CLONED_FUNCTION_P (CLONE); \
1737 CLONE = TREE_CHAIN (CLONE))
1739 /* Nonzero if NODE has DECL_DISCRIMINATOR and not DECL_ACCESS. */
1740 #define DECL_DISCRIMINATOR_P(NODE) \
1741 (TREE_CODE (NODE) == VAR_DECL \
1742 && DECL_FUNCTION_SCOPE_P (NODE))
1744 /* Discriminator for name mangling. */
1745 #define DECL_DISCRIMINATOR(NODE) (LANG_DECL_U2_CHECK (NODE, 1)->discriminator)
1747 /* Nonzero if the VTT parm has been added to NODE. */
1748 #define DECL_HAS_VTT_PARM_P(NODE) \
1749 (DECL_LANG_SPECIFIC (NODE)->decl_flags.has_vtt_parm_p)
1751 /* Nonzero if NODE is a FUNCTION_DECL for which a VTT parameter is
1753 #define DECL_NEEDS_VTT_PARM_P(NODE) \
1754 (CLASSTYPE_VBASECLASSES (DECL_CONTEXT (NODE)) \
1755 && (DECL_BASE_CONSTRUCTOR_P (NODE) \
1756 || DECL_BASE_DESTRUCTOR_P (NODE)))
1758 /* Nonzero if NODE is a user-defined conversion operator. */
1759 #define DECL_CONV_FN_P(NODE) \
1760 (DECL_NAME (NODE) && IDENTIFIER_TYPENAME_P (DECL_NAME (NODE)))
1762 /* If FN is a conversion operator, the type to which it converts.
1763 Otherwise, NULL_TREE. */
1764 #define DECL_CONV_FN_TYPE(FN) \
1765 (DECL_CONV_FN_P (FN) ? TREE_TYPE (DECL_NAME (FN)) : NULL_TREE)
1767 /* Nonzero if NODE, which is a TEMPLATE_DECL, is a template
1768 conversion operator to a type dependent on the innermost template
1770 #define DECL_TEMPLATE_CONV_FN_P(NODE) \
1771 (DECL_LANG_SPECIFIC (NODE)->decl_flags.template_conv_p)
1773 /* Set the overloaded operator code for NODE to CODE. */
1774 #define SET_OVERLOADED_OPERATOR_CODE(NODE, CODE) \
1775 (DECL_LANG_SPECIFIC (NODE)->u.f.operator_code = (CODE))
1777 /* If NODE is an overloaded operator, then this returns the TREE_CODE
1778 associated with the overloaded operator.
1779 DECL_ASSIGNMENT_OPERATOR_P must also be checked to determine
1780 whether or not NODE is an assignment operator. If NODE is not an
1781 overloaded operator, ERROR_MARK is returned. Since the numerical
1782 value of ERROR_MARK is zero, this macro can be used as a predicate
1783 to test whether or not NODE is an overloaded operator. */
1784 #define DECL_OVERLOADED_OPERATOR_P(NODE) \
1785 (IDENTIFIER_OPNAME_P (DECL_NAME (NODE)) \
1786 ? DECL_LANG_SPECIFIC (NODE)->u.f.operator_code : ERROR_MARK)
1788 /* Nonzero if NODE is an assignment operator. */
1789 #define DECL_ASSIGNMENT_OPERATOR_P(NODE) \
1790 (DECL_LANG_SPECIFIC (NODE)->decl_flags.assignment_operator_p)
1792 /* For FUNCTION_DECLs: nonzero means that this function is a
1793 constructor or a destructor with an extra in-charge parameter to
1794 control whether or not virtual bases are constructed. */
1795 #define DECL_HAS_IN_CHARGE_PARM_P(NODE) \
1796 (DECL_LANG_SPECIFIC (NODE)->decl_flags.has_in_charge_parm_p)
1798 /* Nonzero for _DECL means that this decl appears in (or will appear
1799 in) as a member in a RECORD_TYPE or UNION_TYPE node. It is also for
1800 detecting circularity in case members are multiply defined. In the
1801 case of a VAR_DECL, it is also used to determine how program storage
1802 should be allocated. */
1803 #define DECL_IN_AGGR_P(NODE) (DECL_LANG_FLAG_3 (NODE))
1805 /* Nonzero for a VAR_DECL means that the variable's initialization has
1807 #define DECL_INITIALIZED_P(NODE) \
1808 (TREE_LANG_FLAG_1 (VAR_DECL_CHECK (NODE)))
1810 /* Nonzero for a VAR_DECL that was initialized with a
1811 constant-expression. */
1812 #define DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P(NODE) \
1813 (TREE_LANG_FLAG_2 (VAR_DECL_CHECK (NODE)))
1815 /* Nonzero for a VAR_DECL that can be used in an integral constant
1820 An integral constant-expression can only involve ... const
1821 variables of static or enumeration types initialized with
1822 constant expressions ...
1824 The standard does not require that the expression be non-volatile.
1825 G++ implements the proposed correction in DR 457. */
1826 #define DECL_INTEGRAL_CONSTANT_VAR_P(NODE) \
1827 (TREE_CODE (NODE) == VAR_DECL \
1828 && CP_TYPE_CONST_NON_VOLATILE_P (TREE_TYPE (NODE)) \
1829 && INTEGRAL_OR_ENUMERATION_TYPE_P (TREE_TYPE (NODE)) \
1830 && DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (NODE))
1832 /* Nonzero if the DECL was initialized in the class definition itself,
1833 rather than outside the class. This is used for both static member
1834 VAR_DECLS, and FUNTION_DECLS that are defined in the class. */
1835 #define DECL_INITIALIZED_IN_CLASS_P(DECL) \
1836 (DECL_LANG_SPECIFIC (DECL)->decl_flags.initialized_in_class)
1838 /* Nonzero for FUNCTION_DECL means that this decl is just a
1839 friend declaration, and should not be added to the list of
1840 member functions for this class. */
1841 #define DECL_FRIEND_P(NODE) (DECL_LANG_SPECIFIC (NODE)->decl_flags.friend_attr)
1843 /* A TREE_LIST of the types which have befriended this FUNCTION_DECL. */
1844 #define DECL_BEFRIENDING_CLASSES(NODE) \
1845 (DECL_LANG_SPECIFIC (NODE)->u.f.befriending_classes)
1847 /* Nonzero for FUNCTION_DECL means that this decl is a static
1849 #define DECL_STATIC_FUNCTION_P(NODE) \
1850 (DECL_LANG_SPECIFIC (NODE)->decl_flags.static_function)
1852 /* Nonzero for FUNCTION_DECL means that this decl is a non-static
1854 #define DECL_NONSTATIC_MEMBER_FUNCTION_P(NODE) \
1855 (TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE)
1857 /* Nonzero for FUNCTION_DECL means that this decl is a member function
1858 (static or non-static). */
1859 #define DECL_FUNCTION_MEMBER_P(NODE) \
1860 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) || DECL_STATIC_FUNCTION_P (NODE))
1862 /* Nonzero for FUNCTION_DECL means that this member function
1863 has `this' as const X *const. */
1864 #define DECL_CONST_MEMFUNC_P(NODE) \
1865 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
1866 && CP_TYPE_CONST_P (TREE_TYPE (TREE_VALUE \
1867 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
1869 /* Nonzero for FUNCTION_DECL means that this member function
1870 has `this' as volatile X *const. */
1871 #define DECL_VOLATILE_MEMFUNC_P(NODE) \
1872 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
1873 && CP_TYPE_VOLATILE_P (TREE_TYPE (TREE_VALUE \
1874 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
1876 /* Nonzero for a DECL means that this member is a non-static member. */
1877 #define DECL_NONSTATIC_MEMBER_P(NODE) \
1878 ((TREE_CODE (NODE) == FUNCTION_DECL \
1879 && DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE)) \
1880 || TREE_CODE (NODE) == FIELD_DECL)
1882 /* Nonzero for _DECL means that this member object type
1884 #define DECL_MUTABLE_P(NODE) (DECL_LANG_FLAG_0 (NODE))
1886 /* Nonzero for _DECL means that this constructor is a non-converting
1888 #define DECL_NONCONVERTING_P(NODE) \
1889 (DECL_LANG_SPECIFIC (NODE)->decl_flags.nonconverting)
1891 /* Nonzero for FUNCTION_DECL means that this member function is a pure
1892 virtual function. */
1893 #define DECL_PURE_VIRTUAL_P(NODE) \
1894 (DECL_LANG_SPECIFIC (NODE)->decl_flags.pure_virtual)
1896 /* True (in a FUNCTION_DECL) if NODE is a virtual function that is an
1897 invalid overrider for a function from a base class. Once we have
1898 complained about an invalid overrider we avoid complaining about it
1900 #define DECL_INVALID_OVERRIDER_P(NODE) \
1901 (DECL_LANG_FLAG_4 (NODE))
1903 /* The thunks associated with NODE, a FUNCTION_DECL. */
1904 #define DECL_THUNKS(NODE) \
1905 (DECL_LANG_SPECIFIC (NODE)->u.f.context)
1907 /* Nonzero if NODE is a thunk, rather than an ordinary function. */
1908 #define DECL_THUNK_P(NODE) \
1909 (TREE_CODE (NODE) == FUNCTION_DECL \
1910 && DECL_LANG_SPECIFIC (NODE) \
1911 && DECL_LANG_SPECIFIC (NODE)->decl_flags.thunk_p)
1913 /* Set DECL_THUNK_P for node. */
1914 #define SET_DECL_THUNK_P(NODE, THIS_ADJUSTING) \
1915 (DECL_LANG_SPECIFIC (NODE)->decl_flags.thunk_p = 1, \
1916 DECL_LANG_SPECIFIC (NODE)->u.f.u3sel = 1, \
1917 DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p = (THIS_ADJUSTING))
1919 /* Nonzero if NODE is a this pointer adjusting thunk. */
1920 #define DECL_THIS_THUNK_P(NODE) \
1921 (DECL_THUNK_P (NODE) && DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p)
1923 /* Nonzero if NODE is a result pointer adjusting thunk. */
1924 #define DECL_RESULT_THUNK_P(NODE) \
1925 (DECL_THUNK_P (NODE) && !DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p)
1927 /* Nonzero if NODE is a FUNCTION_DECL, but not a thunk. */
1928 #define DECL_NON_THUNK_FUNCTION_P(NODE) \
1929 (TREE_CODE (NODE) == FUNCTION_DECL && !DECL_THUNK_P (NODE))
1931 /* Nonzero if NODE is `extern "C"'. */
1932 #define DECL_EXTERN_C_P(NODE) \
1933 (DECL_LANGUAGE (NODE) == lang_c)
1935 /* Nonzero if NODE is an `extern "C"' function. */
1936 #define DECL_EXTERN_C_FUNCTION_P(NODE) \
1937 (DECL_NON_THUNK_FUNCTION_P (NODE) && DECL_EXTERN_C_P (NODE))
1939 /* True iff DECL is an entity with vague linkage whose definition is
1940 available in this translation unit. */
1941 #define DECL_REPO_AVAILABLE_P(NODE) \
1942 (DECL_LANG_SPECIFIC (NODE)->decl_flags.repo_available_p)
1944 /* Nonzero if this DECL is the __PRETTY_FUNCTION__ variable in a
1945 template function. */
1946 #define DECL_PRETTY_FUNCTION_P(NODE) \
1947 (TREE_LANG_FLAG_0 (VAR_DECL_CHECK (NODE)))
1949 /* The _TYPE context in which this _DECL appears. This field holds the
1950 class where a virtual function instance is actually defined. */
1951 #define DECL_CLASS_CONTEXT(NODE) \
1952 (DECL_CLASS_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : NULL_TREE)
1954 /* For a non-member friend function, the class (if any) in which this
1955 friend was defined. For example, given:
1957 struct S { friend void f (); };
1959 the DECL_FRIEND_CONTEXT for `f' will be `S'. */
1960 #define DECL_FRIEND_CONTEXT(NODE) \
1961 ((DECL_FRIEND_P (NODE) && !DECL_FUNCTION_MEMBER_P (NODE)) \
1962 ? DECL_LANG_SPECIFIC (NODE)->u.f.context \
1965 /* Set the DECL_FRIEND_CONTEXT for NODE to CONTEXT. */
1966 #define SET_DECL_FRIEND_CONTEXT(NODE, CONTEXT) \
1967 (DECL_LANG_SPECIFIC (NODE)->u.f.context = (CONTEXT))
1969 /* NULL_TREE in DECL_CONTEXT represents the global namespace. */
1970 #define CP_DECL_CONTEXT(NODE) \
1971 (DECL_CONTEXT (NODE) ? DECL_CONTEXT (NODE) : global_namespace)
1972 #define FROB_CONTEXT(NODE) ((NODE) == global_namespace ? NULL_TREE : (NODE))
1974 /* 1 iff NODE has namespace scope, including the global namespace. */
1975 #define DECL_NAMESPACE_SCOPE_P(NODE) \
1976 (!DECL_TEMPLATE_PARM_P (NODE) \
1977 && TREE_CODE (CP_DECL_CONTEXT (NODE)) == NAMESPACE_DECL)
1979 /* 1 iff NODE is a class member. */
1980 #define DECL_CLASS_SCOPE_P(NODE) \
1981 (DECL_CONTEXT (NODE) && TYPE_P (DECL_CONTEXT (NODE)))
1983 /* 1 iff NODE is function-local. */
1984 #define DECL_FUNCTION_SCOPE_P(NODE) \
1985 (DECL_CONTEXT (NODE) \
1986 && TREE_CODE (DECL_CONTEXT (NODE)) == FUNCTION_DECL)
1988 /* 1 iff VAR_DECL node NODE is a type-info decl. This flag is set for
1989 both the primary typeinfo object and the associated NTBS name. */
1990 #define DECL_TINFO_P(NODE) TREE_LANG_FLAG_4 (VAR_DECL_CHECK (NODE))
1992 /* 1 iff VAR_DECL node NODE is virtual table or VTT. */
1993 #define DECL_VTABLE_OR_VTT_P(NODE) TREE_LANG_FLAG_5 (VAR_DECL_CHECK (NODE))
1995 /* Returns 1 iff VAR_DECL is a construction virtual table.
1996 DECL_VTABLE_OR_VTT_P will be true in this case and must be checked
1997 before using this macro. */
1998 #define DECL_CONSTRUCTION_VTABLE_P(NODE) \
1999 TREE_LANG_FLAG_6 (VAR_DECL_CHECK (NODE))
2001 /* 1 iff NODE is function-local, but for types. */
2002 #define LOCAL_CLASS_P(NODE) \
2003 (decl_function_context (TYPE_MAIN_DECL (NODE)) != NULL_TREE)
2005 /* For a NAMESPACE_DECL: the list of using namespace directives
2006 The PURPOSE is the used namespace, the value is the namespace
2007 that is the common ancestor. */
2008 #define DECL_NAMESPACE_USING(NODE) DECL_VINDEX (NAMESPACE_DECL_CHECK (NODE))
2010 /* In a NAMESPACE_DECL, the DECL_INITIAL is used to record all users
2011 of a namespace, to record the transitive closure of using namespace. */
2012 #define DECL_NAMESPACE_USERS(NODE) DECL_INITIAL (NAMESPACE_DECL_CHECK (NODE))
2014 /* In a NAMESPACE_DECL, the list of namespaces which have associated
2015 themselves with this one. */
2016 #define DECL_NAMESPACE_ASSOCIATIONS(NODE) \
2017 (NAMESPACE_DECL_CHECK (NODE)->decl.saved_tree)
2019 /* In a NAMESPACE_DECL, points to the original namespace if this is
2020 a namespace alias. */
2021 #define DECL_NAMESPACE_ALIAS(NODE) \
2022 DECL_ABSTRACT_ORIGIN (NAMESPACE_DECL_CHECK (NODE))
2023 #define ORIGINAL_NAMESPACE(NODE) \
2024 (DECL_NAMESPACE_ALIAS (NODE) ? DECL_NAMESPACE_ALIAS (NODE) : (NODE))
2026 /* Nonzero if NODE is the std namespace. */
2027 #define DECL_NAMESPACE_STD_P(NODE) \
2028 (TREE_CODE (NODE) == NAMESPACE_DECL \
2029 && CP_DECL_CONTEXT (NODE) == global_namespace \
2030 && DECL_NAME (NODE) == std_identifier)
2032 /* In a non-local VAR_DECL with static storage duration, this is the
2033 initialization priority. If this value is zero, the NODE will be
2034 initialized at the DEFAULT_INIT_PRIORITY. */
2035 #define DECL_INIT_PRIORITY(NODE) (VAR_DECL_CHECK (NODE)->decl.u2.i)
2037 /* In a TREE_LIST concatenating using directives, indicate indirect
2039 #define TREE_INDIRECT_USING(NODE) (TREE_LIST_CHECK (NODE)->common.lang_flag_0)
2041 /* In a VAR_DECL for a variable declared in a for statement,
2042 this is the shadowed (local) variable. */
2043 #define DECL_SHADOWED_FOR_VAR(NODE) DECL_RESULT_FLD(VAR_DECL_CHECK (NODE))
2045 /* In a FUNCTION_DECL, this is nonzero if this function was defined in
2046 the class definition. We have saved away the text of the function,
2047 but have not yet processed it. */
2048 #define DECL_PENDING_INLINE_P(NODE) \
2049 (DECL_LANG_SPECIFIC (NODE)->u.f.pending_inline_p)
2051 /* If DECL_PENDING_INLINE_P holds, this is the saved text of the
2053 #define DECL_PENDING_INLINE_INFO(NODE) \
2054 (DECL_LANG_SPECIFIC (NODE)->u.f.u.pending_inline_info)
2056 /* For a TYPE_DECL: if this structure has many fields, we'll sort them
2057 and put them into a TREE_VEC. */
2058 #define DECL_SORTED_FIELDS(NODE) \
2059 (DECL_LANG_SPECIFIC (TYPE_DECL_CHECK (NODE))->u.f.u.sorted_fields)
2061 /* True if on the deferred_fns (see decl2.c) list. */
2062 #define DECL_DEFERRED_FN(DECL) \
2063 (DECL_LANG_SPECIFIC (DECL)->decl_flags.deferred)
2065 /* For a VAR_DECL, FUNCTION_DECL, TYPE_DECL or TEMPLATE_DECL:
2066 template-specific information. */
2067 #define DECL_TEMPLATE_INFO(NODE) \
2068 (DECL_LANG_SPECIFIC (VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK (NODE)) \
2069 ->decl_flags.u.template_info)
2071 /* For a VAR_DECL, indicates that the variable has been processed.
2072 This flag is set and unset throughout the code; it is always
2073 used for a temporary purpose. */
2074 #define DECL_VAR_MARKED_P(NODE) \
2075 (DECL_LANG_FLAG_4 (VAR_DECL_CHECK (NODE)))
2077 /* Template information for a RECORD_TYPE or UNION_TYPE. */
2078 #define CLASSTYPE_TEMPLATE_INFO(NODE) \
2079 (LANG_TYPE_CLASS_CHECK (RECORD_OR_UNION_CHECK (NODE))->template_info)
2081 /* Template information for an ENUMERAL_TYPE. Although an enumeration may
2082 not be a primary template, it may be declared within the scope of a
2083 primary template and the enumeration constants may depend on
2084 non-type template parameters. */
2085 #define ENUM_TEMPLATE_INFO(NODE) \
2086 (TYPE_LANG_SLOT_1 (ENUMERAL_TYPE_CHECK (NODE)))
2088 /* Template information for a template template parameter. */
2089 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO(NODE) \
2090 (LANG_TYPE_CLASS_CHECK (BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK (NODE)) \
2093 /* Template information for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2094 #define TYPE_TEMPLATE_INFO(NODE) \
2095 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2096 ? ENUM_TEMPLATE_INFO (NODE) : \
2097 (TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM \
2098 ? TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO (NODE) : \
2099 (TYPE_LANG_SPECIFIC (NODE) \
2100 ? CLASSTYPE_TEMPLATE_INFO (NODE) \
2103 /* Set the template information for an ENUMERAL_, RECORD_, or
2104 UNION_TYPE to VAL. */
2105 #define SET_TYPE_TEMPLATE_INFO(NODE, VAL) \
2106 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2107 ? (ENUM_TEMPLATE_INFO (NODE) = (VAL)) \
2108 : (CLASSTYPE_TEMPLATE_INFO (NODE) = (VAL)))
2110 #define TI_TEMPLATE(NODE) (TREE_PURPOSE (NODE))
2111 #define TI_ARGS(NODE) (TREE_VALUE (NODE))
2112 #define TI_PENDING_TEMPLATE_FLAG(NODE) TREE_LANG_FLAG_1 (NODE)
2114 /* We use TREE_VECs to hold template arguments. If there is only one
2115 level of template arguments, then the TREE_VEC contains the
2116 arguments directly. If there is more than one level of template
2117 arguments, then each entry in the TREE_VEC is itself a TREE_VEC,
2118 containing the template arguments for a single level. The first
2119 entry in the outer TREE_VEC is the outermost level of template
2120 parameters; the last is the innermost.
2122 It is incorrect to ever form a template argument vector containing
2123 only one level of arguments, but which is a TREE_VEC containing as
2124 its only entry the TREE_VEC for that level. */
2126 /* Nonzero if the template arguments is actually a vector of vectors,
2127 rather than just a vector. */
2128 #define TMPL_ARGS_HAVE_MULTIPLE_LEVELS(NODE) \
2129 (NODE && TREE_VEC_ELT (NODE, 0) \
2130 && TREE_CODE (TREE_VEC_ELT (NODE, 0)) == TREE_VEC)
2132 /* The depth of a template argument vector. When called directly by
2133 the parser, we use a TREE_LIST rather than a TREE_VEC to represent
2134 template arguments. In fact, we may even see NULL_TREE if there
2135 are no template arguments. In both of those cases, there is only
2136 one level of template arguments. */
2137 #define TMPL_ARGS_DEPTH(NODE) \
2138 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (NODE) ? TREE_VEC_LENGTH (NODE) : 1)
2140 /* The LEVELth level of the template ARGS. The outermost level of
2141 args is level 1, not level 0. */
2142 #define TMPL_ARGS_LEVEL(ARGS, LEVEL) \
2143 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (ARGS) \
2144 ? TREE_VEC_ELT (ARGS, (LEVEL) - 1) : (ARGS))
2146 /* Set the LEVELth level of the template ARGS to VAL. This macro does
2147 not work with single-level argument vectors. */
2148 #define SET_TMPL_ARGS_LEVEL(ARGS, LEVEL, VAL) \
2149 (TREE_VEC_ELT (ARGS, (LEVEL) - 1) = (VAL))
2151 /* Accesses the IDXth parameter in the LEVELth level of the ARGS. */
2152 #define TMPL_ARG(ARGS, LEVEL, IDX) \
2153 (TREE_VEC_ELT (TMPL_ARGS_LEVEL (ARGS, LEVEL), IDX))
2155 /* Set the IDXth element in the LEVELth level of ARGS to VAL. This
2156 macro does not work with single-level argument vectors. */
2157 #define SET_TMPL_ARG(ARGS, LEVEL, IDX, VAL) \
2158 (TREE_VEC_ELT (TREE_VEC_ELT ((ARGS), (LEVEL) - 1), (IDX)) = (VAL))
2160 /* Given a single level of template arguments in NODE, return the
2161 number of arguments. */
2162 #define NUM_TMPL_ARGS(NODE) \
2163 (TREE_VEC_LENGTH (NODE))
2165 /* Returns the innermost level of template arguments in ARGS. */
2166 #define INNERMOST_TEMPLATE_ARGS(NODE) \
2167 (get_innermost_template_args ((NODE), 1))
2169 /* The number of levels of template parameters given by NODE. */
2170 #define TMPL_PARMS_DEPTH(NODE) \
2171 ((HOST_WIDE_INT) TREE_INT_CST_LOW (TREE_PURPOSE (NODE)))
2173 /* The TEMPLATE_DECL instantiated or specialized by NODE. This
2174 TEMPLATE_DECL will be the immediate parent, not the most general
2175 template. For example, in:
2177 template <class T> struct S { template <class U> void f(U); }
2179 the FUNCTION_DECL for S<int>::f<double> will have, as its
2180 DECL_TI_TEMPLATE, `template <class U> S<int>::f<U>'.
2182 As a special case, for a member friend template of a template
2183 class, this value will not be a TEMPLATE_DECL, but rather an
2184 IDENTIFIER_NODE or OVERLOAD indicating the name of the template and
2185 any explicit template arguments provided. For example, in:
2187 template <class T> struct S { friend void f<int>(int, double); }
2189 the DECL_TI_TEMPLATE will be an IDENTIFIER_NODE for `f' and the
2190 DECL_TI_ARGS will be {int}. */
2191 #define DECL_TI_TEMPLATE(NODE) TI_TEMPLATE (DECL_TEMPLATE_INFO (NODE))
2193 /* The template arguments used to obtain this decl from the most
2194 general form of DECL_TI_TEMPLATE. For the example given for
2195 DECL_TI_TEMPLATE, the DECL_TI_ARGS will be {int, double}. These
2196 are always the full set of arguments required to instantiate this
2197 declaration from the most general template specialized here. */
2198 #define DECL_TI_ARGS(NODE) TI_ARGS (DECL_TEMPLATE_INFO (NODE))
2199 #define CLASSTYPE_TI_TEMPLATE(NODE) TI_TEMPLATE (CLASSTYPE_TEMPLATE_INFO (NODE))
2200 #define CLASSTYPE_TI_ARGS(NODE) TI_ARGS (CLASSTYPE_TEMPLATE_INFO (NODE))
2201 #define ENUM_TI_TEMPLATE(NODE) \
2202 TI_TEMPLATE (ENUM_TEMPLATE_INFO (NODE))
2203 #define ENUM_TI_ARGS(NODE) \
2204 TI_ARGS (ENUM_TEMPLATE_INFO (NODE))
2206 /* For a template instantiation TYPE, returns the TYPE corresponding
2207 to the primary template. Otherwise returns TYPE itself. */
2208 #define CLASSTYPE_PRIMARY_TEMPLATE_TYPE(TYPE) \
2209 ((CLASSTYPE_USE_TEMPLATE ((TYPE)) \
2210 && !CLASSTYPE_TEMPLATE_SPECIALIZATION ((TYPE))) \
2211 ? TREE_TYPE (DECL_TEMPLATE_RESULT (DECL_PRIMARY_TEMPLATE \
2212 (CLASSTYPE_TI_TEMPLATE ((TYPE))))) \
2215 /* Like DECL_TI_TEMPLATE, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2216 #define TYPE_TI_TEMPLATE(NODE) \
2217 (TI_TEMPLATE (TYPE_TEMPLATE_INFO (NODE)))
2219 /* Like DECL_TI_ARGS, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2220 #define TYPE_TI_ARGS(NODE) \
2221 (TI_ARGS (TYPE_TEMPLATE_INFO (NODE)))
2223 #define INNERMOST_TEMPLATE_PARMS(NODE) TREE_VALUE (NODE)
2225 /* Nonzero if NODE (a TEMPLATE_DECL) is a member template, in the
2226 sense of [temp.mem]. */
2227 #define DECL_MEMBER_TEMPLATE_P(NODE) \
2228 (DECL_LANG_FLAG_1 (TEMPLATE_DECL_CHECK (NODE)))
2230 /* Nonzero if the NODE corresponds to the template parameters for a
2231 member template, whose inline definition is being processed after
2232 the class definition is complete. */
2233 #define TEMPLATE_PARMS_FOR_INLINE(NODE) TREE_LANG_FLAG_1 (NODE)
2235 /* In a FUNCTION_DECL, the saved language-specific per-function data. */
2236 #define DECL_SAVED_FUNCTION_DATA(NODE) \
2237 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (NODE)) \
2238 ->u.f.u.saved_language_function)
2240 /* Indicates an indirect_expr is for converting a reference. */
2241 #define REFERENCE_REF_P(NODE) \
2242 TREE_LANG_FLAG_0 (INDIRECT_REF_CHECK (NODE))
2244 #define NEW_EXPR_USE_GLOBAL(NODE) \
2245 TREE_LANG_FLAG_0 (NEW_EXPR_CHECK (NODE))
2246 #define DELETE_EXPR_USE_GLOBAL(NODE) \
2247 TREE_LANG_FLAG_0 (DELETE_EXPR_CHECK (NODE))
2248 #define DELETE_EXPR_USE_VEC(NODE) \
2249 TREE_LANG_FLAG_1 (DELETE_EXPR_CHECK (NODE))
2251 /* Indicates that this is a non-dependent COMPOUND_EXPR which will
2252 resolve to a function call. */
2253 #define COMPOUND_EXPR_OVERLOADED(NODE) \
2254 TREE_LANG_FLAG_0 (COMPOUND_EXPR_CHECK (NODE))
2256 /* In a CALL_EXPR appearing in a template, true if Koenig lookup
2257 should be performed at instantiation time. */
2258 #define KOENIG_LOOKUP_P(NODE) TREE_LANG_FLAG_0 (CALL_EXPR_CHECK (NODE))
2260 /* Indicates whether a string literal has been parenthesized. Such
2261 usages are disallowed in certain circumstances. */
2263 #define PAREN_STRING_LITERAL_P(NODE) \
2264 TREE_LANG_FLAG_0 (STRING_CST_CHECK (NODE))
2266 /* Nonzero if this AGGR_INIT_EXPR provides for initialization via a
2267 constructor call, rather than an ordinary function call. */
2268 #define AGGR_INIT_VIA_CTOR_P(NODE) \
2269 TREE_LANG_FLAG_0 (AGGR_INIT_EXPR_CHECK (NODE))
2271 /* The TYPE_MAIN_DECL for a class template type is a TYPE_DECL, not a
2272 TEMPLATE_DECL. This macro determines whether or not a given class
2273 type is really a template type, as opposed to an instantiation or
2274 specialization of one. */
2275 #define CLASSTYPE_IS_TEMPLATE(NODE) \
2276 (CLASSTYPE_TEMPLATE_INFO (NODE) \
2277 && !CLASSTYPE_USE_TEMPLATE (NODE) \
2278 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE)))
2280 /* The name used by the user to name the typename type. Typically,
2281 this is an IDENTIFIER_NODE, and the same as the DECL_NAME on the
2282 corresponding TYPE_DECL. However, this may also be a
2283 TEMPLATE_ID_EXPR if we had something like `typename X::Y<T>'. */
2284 #define TYPENAME_TYPE_FULLNAME(NODE) (TYPENAME_TYPE_CHECK (NODE))->type.values
2286 /* True if a TYPENAME_TYPE was declared as an "enum". */
2287 #define TYPENAME_IS_ENUM_P(NODE) \
2288 (TREE_LANG_FLAG_0 (TYPENAME_TYPE_CHECK (NODE)))
2290 /* True if a TYPENAME_TYPE was declared as a "class", "struct", or
2292 #define TYPENAME_IS_CLASS_P(NODE) \
2293 (TREE_LANG_FLAG_1 (TYPENAME_TYPE_CHECK (NODE)))
2295 /* Nonzero in INTEGER_CST means that this int is negative by dint of
2296 using a twos-complement negated operand. */
2297 #define TREE_NEGATED_INT(NODE) TREE_LANG_FLAG_0 (INTEGER_CST_CHECK (NODE))
2301 A class that declares or inherits a virtual function is called a
2302 polymorphic class. */
2303 #define TYPE_POLYMORPHIC_P(NODE) (TREE_LANG_FLAG_2 (NODE))
2305 /* Nonzero if this class has a virtual function table pointer. */
2306 #define TYPE_CONTAINS_VPTR_P(NODE) \
2307 (TYPE_POLYMORPHIC_P (NODE) || CLASSTYPE_VBASECLASSES (NODE))
2309 /* This flag is true of a local VAR_DECL if it was declared in a for
2310 statement, but we are no longer in the scope of the for. */
2311 #define DECL_DEAD_FOR_LOCAL(NODE) DECL_LANG_FLAG_7 (VAR_DECL_CHECK (NODE))
2313 /* This flag is set on a VAR_DECL that is a DECL_DEAD_FOR_LOCAL
2314 if we already emitted a warning about using it. */
2315 #define DECL_ERROR_REPORTED(NODE) DECL_LANG_FLAG_0 (VAR_DECL_CHECK (NODE))
2317 /* Nonzero if NODE is a FUNCTION_DECL (for a function with global
2318 scope) declared in a local scope. */
2319 #define DECL_LOCAL_FUNCTION_P(NODE) \
2320 DECL_LANG_FLAG_0 (FUNCTION_DECL_CHECK (NODE))
2322 /* Nonzero if NODE is a FUNCTION_DECL for a built-in function, and we have
2323 not yet seen a prototype for that function. */
2324 #define DECL_ANTICIPATED(NODE) \
2325 (DECL_LANG_SPECIFIC (DECL_CHECK (NODE))->decl_flags.anticipated_p)
2327 /* Record whether a typedef for type `int' was actually `signed int'. */
2328 #define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP)
2330 /* Returns nonzero if DECL has external linkage, as specified by the
2331 language standard. (This predicate may hold even when the
2332 corresponding entity is not actually given external linkage in the
2333 object file; see decl_linkage for details.) */
2334 #define DECL_EXTERNAL_LINKAGE_P(DECL) \
2335 (decl_linkage (DECL) == lk_external)
2337 /* Keep these codes in ascending code order. CHAR_TYPE is used here
2338 to completely fill the range. */
2340 #define INTEGRAL_CODE_P(CODE) \
2341 ((CODE) == ENUMERAL_TYPE || (CODE) == BOOLEAN_TYPE \
2342 || (CODE) == CHAR_TYPE || (CODE) == INTEGER_TYPE)
2344 /* [basic.fundamental]
2346 Types bool, char, wchar_t, and the signed and unsigned integer types
2347 are collectively called integral types.
2349 Note that INTEGRAL_TYPE_P, as defined in tree.h, allows enumeration
2350 types as well, which is incorrect in C++. Keep these checks in
2351 ascending code order. CHAR_TYPE is added to complete the interval of
2353 #define CP_INTEGRAL_TYPE_P(TYPE) \
2354 (TREE_CODE (TYPE) == BOOLEAN_TYPE \
2355 || TREE_CODE (TYPE) == CHAR_TYPE \
2356 || TREE_CODE (TYPE) == INTEGER_TYPE)
2358 /* Returns true if TYPE is an integral or enumeration name. Keep
2359 these checks in ascending code order. */
2360 #define INTEGRAL_OR_ENUMERATION_TYPE_P(TYPE) \
2361 (TREE_CODE (TYPE) == ENUMERAL_TYPE || CP_INTEGRAL_TYPE_P (TYPE))
2363 /* [basic.fundamental]
2365 Integral and floating types are collectively called arithmetic
2366 types. Keep these checks in ascending code order. */
2367 #define ARITHMETIC_TYPE_P(TYPE) \
2368 (CP_INTEGRAL_TYPE_P (TYPE) || TREE_CODE (TYPE) == REAL_TYPE)
2372 Arithmetic types, enumeration types, pointer types, and
2373 pointer-to-member types, are collectively called scalar types.
2374 Keep these checks in ascending code order. */
2375 #define SCALAR_TYPE_P(TYPE) \
2376 (TYPE_PTRMEM_P (TYPE) \
2377 || TREE_CODE (TYPE) == ENUMERAL_TYPE \
2378 || ARITHMETIC_TYPE_P (TYPE) \
2379 || TYPE_PTR_P (TYPE) \
2380 || TYPE_PTRMEMFUNC_P (TYPE))
2384 An aggregate is an array or a class with no user-declared
2385 constructors, no private or protected non-static data members, no
2386 base classes, and no virtual functions.
2388 As an extension, we also treat vectors as aggregates. Keep these
2389 checks in ascending code order. */
2390 #define CP_AGGREGATE_TYPE_P(TYPE) \
2391 (TREE_CODE (TYPE) == VECTOR_TYPE \
2392 ||TREE_CODE (TYPE) == ARRAY_TYPE \
2393 || (CLASS_TYPE_P (TYPE) && !CLASSTYPE_NON_AGGREGATE (TYPE)))
2395 /* Nonzero for a class type means that the class type has a
2396 user-declared constructor. */
2397 #define TYPE_HAS_CONSTRUCTOR(NODE) (TYPE_LANG_FLAG_1 (NODE))
2399 /* When appearing in an INDIRECT_REF, it means that the tree structure
2400 underneath is actually a call to a constructor. This is needed
2401 when the constructor must initialize local storage (which can
2402 be automatically destroyed), rather than allowing it to allocate
2403 space from the heap.
2405 When appearing in a SAVE_EXPR, it means that underneath
2406 is a call to a constructor.
2408 When appearing in a CONSTRUCTOR, the expression is a
2411 When appearing in a FIELD_DECL, it means that this field
2412 has been duly initialized in its constructor. */
2413 #define TREE_HAS_CONSTRUCTOR(NODE) (TREE_LANG_FLAG_4 (NODE))
2415 /* True if NODE is a brace-enclosed initializer. */
2416 #define BRACE_ENCLOSED_INITIALIZER_P(NODE) \
2417 (TREE_CODE (NODE) == CONSTRUCTOR && !TREE_TYPE (NODE))
2419 #define EMPTY_CONSTRUCTOR_P(NODE) (TREE_CODE (NODE) == CONSTRUCTOR \
2420 && CONSTRUCTOR_ELTS (NODE) == NULL_TREE \
2421 && ! TREE_HAS_CONSTRUCTOR (NODE))
2423 /* Nonzero means that an object of this type can not be initialized using
2424 an initializer list. */
2425 #define CLASSTYPE_NON_AGGREGATE(NODE) \
2426 (LANG_TYPE_CLASS_CHECK (NODE)->non_aggregate)
2427 #define TYPE_NON_AGGREGATE_CLASS(NODE) \
2428 (IS_AGGR_TYPE (NODE) && CLASSTYPE_NON_AGGREGATE (NODE))
2430 /* Nonzero if there is a user-defined X::op=(x&) for this class. */
2431 #define TYPE_HAS_COMPLEX_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_assign_ref)
2432 #define TYPE_HAS_COMPLEX_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_init_ref)
2434 /* Nonzero if TYPE has a trivial destructor. From [class.dtor]:
2436 A destructor is trivial if it is an implicitly declared
2439 - all of the direct base classes of its class have trivial
2442 - for all of the non-static data members of its class that are
2443 of class type (or array thereof), each such class has a
2444 trivial destructor. */
2445 #define TYPE_HAS_TRIVIAL_DESTRUCTOR(NODE) \
2446 (!TYPE_HAS_NONTRIVIAL_DESTRUCTOR (NODE))
2448 /* Nonzero for _TYPE node means that this type does not have a trivial
2449 destructor. Therefore, destroying an object of this type will
2450 involve a call to a destructor. This can apply to objects of
2451 ARRAY_TYPE is the type of the elements needs a destructor. */
2452 #define TYPE_HAS_NONTRIVIAL_DESTRUCTOR(NODE) \
2453 (TYPE_LANG_FLAG_4 (NODE))
2455 /* Nonzero for class type means that copy initialization of this type can use
2457 #define TYPE_HAS_TRIVIAL_INIT_REF(NODE) \
2458 (TYPE_HAS_INIT_REF (NODE) && ! TYPE_HAS_COMPLEX_INIT_REF (NODE))
2460 /* Nonzero for class type means that assignment of this type can use
2462 #define TYPE_HAS_TRIVIAL_ASSIGN_REF(NODE) \
2463 (TYPE_HAS_ASSIGN_REF (NODE) && ! TYPE_HAS_COMPLEX_ASSIGN_REF (NODE))
2465 /* Returns true if NODE is a pointer-to-data-member. */
2466 #define TYPE_PTRMEM_P(NODE) \
2467 (TREE_CODE (NODE) == OFFSET_TYPE)
2468 /* Returns true if NODE is a pointer. */
2469 #define TYPE_PTR_P(NODE) \
2470 (TREE_CODE (NODE) == POINTER_TYPE)
2471 /* Returns true if NODE is a pointer to an object. Keep these checks
2472 in ascending tree code order. */
2473 #define TYPE_PTROB_P(NODE) \
2474 (TYPE_PTR_P (NODE) \
2475 && !(TREE_CODE (TREE_TYPE (NODE)) == VOID_TYPE \
2476 || TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE \
2477 || TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE))
2478 /* Returns true if NODE is a reference to an object. Keep these checks
2479 in ascending tree code order. */
2480 #define TYPE_REF_OBJ_P(NODE) \
2481 (TREE_CODE (NODE) == REFERENCE_TYPE \
2482 && !(TREE_CODE (TREE_TYPE (NODE)) == VOID_TYPE \
2483 || TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE \
2484 || TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE))
2485 /* Returns true if NODE is a pointer to an object, or a pointer to
2486 void. Keep these checks in ascending tree code order. */
2487 #define TYPE_PTROBV_P(NODE) \
2488 (TYPE_PTR_P (NODE) \
2489 && !(TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE \
2490 || TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE))
2491 /* Returns true if NODE is a pointer to function. */
2492 #define TYPE_PTRFN_P(NODE) \
2493 (TREE_CODE (NODE) == POINTER_TYPE \
2494 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
2495 /* Returns true if NODE is a reference to function. */
2496 #define TYPE_REFFN_P(NODE) \
2497 (TREE_CODE (NODE) == REFERENCE_TYPE \
2498 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
2500 /* Nonzero for _TYPE node means that this type is a pointer to member
2502 #define TYPE_PTRMEMFUNC_P(NODE) \
2503 (TREE_CODE (NODE) == RECORD_TYPE \
2504 && TYPE_LANG_SPECIFIC (NODE) \
2505 && TYPE_PTRMEMFUNC_FLAG (NODE))
2507 #define TYPE_PTRMEMFUNC_FLAG(NODE) \
2508 (LANG_TYPE_CLASS_CHECK (NODE)->ptrmemfunc_flag)
2510 /* Returns true if NODE is a pointer-to-member. */
2511 #define TYPE_PTR_TO_MEMBER_P(NODE) \
2512 (TYPE_PTRMEM_P (NODE) || TYPE_PTRMEMFUNC_P (NODE))
2514 /* Indicates when overload resolution may resolve to a pointer to
2515 member function. [expr.unary.op]/3 */
2516 #define PTRMEM_OK_P(NODE) \
2517 TREE_LANG_FLAG_0 (TREE_CHECK2 ((NODE), ADDR_EXPR, OFFSET_REF))
2519 /* Get the POINTER_TYPE to the METHOD_TYPE associated with this
2520 pointer to member function. TYPE_PTRMEMFUNC_P _must_ be true,
2521 before using this macro. */
2522 #define TYPE_PTRMEMFUNC_FN_TYPE(NODE) \
2523 (TREE_TYPE (TYPE_FIELDS (NODE)))
2525 /* Returns `A' for a type like `int (A::*)(double)' */
2526 #define TYPE_PTRMEMFUNC_OBJECT_TYPE(NODE) \
2527 TYPE_METHOD_BASETYPE (TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
2529 /* These are use to manipulate the canonical RECORD_TYPE from the
2530 hashed POINTER_TYPE, and can only be used on the POINTER_TYPE. */
2531 #define TYPE_GET_PTRMEMFUNC_TYPE(NODE) \
2532 (TYPE_LANG_SPECIFIC (NODE) ? LANG_TYPE_PTRMEM_CHECK (NODE)->record : NULL)
2533 #define TYPE_SET_PTRMEMFUNC_TYPE(NODE, VALUE) \
2535 if (TYPE_LANG_SPECIFIC (NODE) == NULL) \
2537 TYPE_LANG_SPECIFIC (NODE) = GGC_CNEWVAR \
2538 (struct lang_type, sizeof (struct lang_type_ptrmem)); \
2539 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.h.is_lang_type_class = 0; \
2541 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.record = (VALUE); \
2544 /* For a pointer-to-member type of the form `T X::*', this is `X'.
2545 For a type like `void (X::*)() const', this type is `X', not `const
2546 X'. To get at the `const X' you have to look at the
2547 TYPE_PTRMEM_POINTED_TO_TYPE; there, the first parameter will have
2549 #define TYPE_PTRMEM_CLASS_TYPE(NODE) \
2550 (TYPE_PTRMEM_P (NODE) \
2551 ? TYPE_OFFSET_BASETYPE (NODE) \
2552 : TYPE_PTRMEMFUNC_OBJECT_TYPE (NODE))
2554 /* For a pointer-to-member type of the form `T X::*', this is `T'. */
2555 #define TYPE_PTRMEM_POINTED_TO_TYPE(NODE) \
2556 (TYPE_PTRMEM_P (NODE) \
2557 ? TREE_TYPE (NODE) \
2558 : TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
2560 /* For a pointer-to-member constant `X::Y' this is the RECORD_TYPE for
2562 #define PTRMEM_CST_CLASS(NODE) \
2563 TYPE_PTRMEM_CLASS_TYPE (TREE_TYPE (PTRMEM_CST_CHECK (NODE)))
2565 /* For a pointer-to-member constant `X::Y' this is the _DECL for
2567 #define PTRMEM_CST_MEMBER(NODE) (((ptrmem_cst_t)PTRMEM_CST_CHECK (NODE))->member)
2569 /* The expression in question for a TYPEOF_TYPE. */
2570 #define TYPEOF_TYPE_EXPR(NODE) (TYPEOF_TYPE_CHECK (NODE))->type.values
2572 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `extern' was
2573 specified in its declaration. This can also be set for an
2574 erroneously declared PARM_DECL. */
2575 #define DECL_THIS_EXTERN(NODE) \
2576 DECL_LANG_FLAG_2 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
2578 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `static' was
2579 specified in its declaration. This can also be set for an
2580 erroneously declared PARM_DECL. */
2581 #define DECL_THIS_STATIC(NODE) \
2582 DECL_LANG_FLAG_6 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
2584 /* Nonzero for FIELD_DECL node means that this field is a base class
2585 of the parent object, as opposed to a member field. */
2586 #define DECL_FIELD_IS_BASE(NODE) \
2587 DECL_LANG_FLAG_6 (FIELD_DECL_CHECK (NODE))
2589 /* Nonzero if TYPE is an anonymous union or struct type. We have to use a
2590 flag for this because "A union for which objects or pointers are
2591 declared is not an anonymous union" [class.union]. */
2592 #define ANON_AGGR_TYPE_P(NODE) \
2593 (CLASS_TYPE_P (NODE) && LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr)
2594 #define SET_ANON_AGGR_TYPE_P(NODE) \
2595 (LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr = 1)
2597 /* Nonzero if TYPE is an anonymous union type. */
2598 #define ANON_UNION_TYPE_P(NODE) \
2599 (TREE_CODE (NODE) == UNION_TYPE && ANON_AGGR_TYPE_P (NODE))
2601 #define UNKNOWN_TYPE LANG_TYPE
2603 /* Define fields and accessors for nodes representing declared names. */
2605 #define TYPE_WAS_ANONYMOUS(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->was_anonymous)
2607 /* C++: all of these are overloaded! These apply only to TYPE_DECLs. */
2609 /* The format of each node in the DECL_FRIENDLIST is as follows:
2611 The TREE_PURPOSE will be the name of a function, i.e., an
2612 IDENTIFIER_NODE. The TREE_VALUE will be itself a TREE_LIST, whose
2613 TREE_VALUEs are friends with the given name. */
2614 #define DECL_FRIENDLIST(NODE) (DECL_INITIAL (NODE))
2615 #define FRIEND_NAME(LIST) (TREE_PURPOSE (LIST))
2616 #define FRIEND_DECLS(LIST) (TREE_VALUE (LIST))
2618 /* The DECL_ACCESS, if non-NULL, is a TREE_LIST. The TREE_PURPOSE of
2619 each node is a type; the TREE_VALUE is the access granted for this
2620 DECL in that type. The DECL_ACCESS is set by access declarations.
2621 For example, if a member that would normally be public in a
2622 derived class is made protected, then the derived class and the
2623 protected_access_node will appear in the DECL_ACCESS for the node. */
2624 #define DECL_ACCESS(NODE) (LANG_DECL_U2_CHECK (NODE, 0)->access)
2626 /* Nonzero if the FUNCTION_DECL is a global constructor. */
2627 #define DECL_GLOBAL_CTOR_P(NODE) \
2628 (DECL_LANG_SPECIFIC (NODE)->decl_flags.global_ctor_p)
2630 /* Nonzero if the FUNCTION_DECL is a global destructor. */
2631 #define DECL_GLOBAL_DTOR_P(NODE) \
2632 (DECL_LANG_SPECIFIC (NODE)->decl_flags.global_dtor_p)
2634 /* Accessor macros for C++ template decl nodes. */
2636 /* The DECL_TEMPLATE_PARMS are a list. The TREE_PURPOSE of each node
2637 is a INT_CST whose TREE_INT_CST_LOW indicates the level of the
2638 template parameters, with 1 being the outermost set of template
2639 parameters. The TREE_VALUE is a vector, whose elements are the
2640 template parameters at each level. Each element in the vector is a
2641 TREE_LIST, whose TREE_VALUE is a PARM_DECL (if the parameter is a
2642 non-type parameter), or a TYPE_DECL (if the parameter is a type
2643 parameter). The TREE_PURPOSE is the default value, if any. The
2644 TEMPLATE_PARM_INDEX for the parameter is available as the
2645 DECL_INITIAL (for a PARM_DECL) or as the TREE_TYPE (for a
2647 #define DECL_TEMPLATE_PARMS(NODE) DECL_ARGUMENTS (NODE)
2648 #define DECL_INNERMOST_TEMPLATE_PARMS(NODE) \
2649 INNERMOST_TEMPLATE_PARMS (DECL_TEMPLATE_PARMS (NODE))
2650 #define DECL_NTPARMS(NODE) \
2651 TREE_VEC_LENGTH (DECL_INNERMOST_TEMPLATE_PARMS (NODE))
2652 /* For function, method, class-data templates. */
2653 #define DECL_TEMPLATE_RESULT(NODE) DECL_RESULT_FLD (NODE)
2654 /* For a static member variable template, the
2655 DECL_TEMPLATE_INSTANTIATIONS list contains the explicitly and
2656 implicitly generated instantiations of the variable. There are no
2657 partial instantiations of static member variables, so all of these
2658 will be full instantiations.
2660 For a class template the DECL_TEMPLATE_INSTANTIATIONS lists holds
2661 all instantiations and specializations of the class type, including
2662 partial instantiations and partial specializations.
2664 In both cases, the TREE_PURPOSE of each node contains the arguments
2665 used; the TREE_VALUE contains the generated variable. The template
2666 arguments are always complete. For example, given:
2668 template <class T> struct S1 {
2669 template <class U> struct S2 {};
2670 template <class U> struct S2<U*> {};
2673 the record for the partial specialization will contain, as its
2674 argument list, { {T}, {U*} }, and will be on the
2675 DECL_TEMPLATE_INSTANTIATIONS list for `template <class T> template
2676 <class U> struct S1<T>::S2'.
2678 This list is not used for function templates. */
2679 #define DECL_TEMPLATE_INSTANTIATIONS(NODE) DECL_VINDEX (NODE)
2680 /* For a function template, the DECL_TEMPLATE_SPECIALIZATIONS lists
2681 contains all instantiations and specializations of the function,
2682 including partial instantiations. For a partial instantiation
2683 which is a specialization, this list holds only full
2684 specializations of the template that are instantiations of the
2685 partial instantiation. For example, given:
2687 template <class T> struct S {
2688 template <class U> void f(U);
2689 template <> void f(T);
2692 the `S<int>::f<int>(int)' function will appear on the
2693 DECL_TEMPLATE_SPECIALIZATIONS list for both `template <class T>
2694 template <class U> void S<T>::f(U)' and `template <class T> void
2695 S<int>::f(T)'. In the latter case, however, it will have only the
2696 innermost set of arguments (T, in this case). The DECL_TI_TEMPLATE
2697 for the function declaration will point at the specialization, not
2698 the fully general template.
2700 For a class template, this list contains the partial
2701 specializations of this template. (Full specializations are not
2702 recorded on this list.) The TREE_PURPOSE holds the innermost
2703 arguments used in the partial specialization (e.g., for `template
2704 <class T> struct S<T*, int>' this will be `T*'.) The TREE_VALUE
2705 holds the innermost template parameters for the specialization
2706 (e.g., `T' in the example above.) The TREE_TYPE is the _TYPE node
2707 for the partial specialization.
2709 This list is not used for static variable templates. */
2710 #define DECL_TEMPLATE_SPECIALIZATIONS(NODE) DECL_SIZE (NODE)
2712 /* Nonzero for a DECL which is actually a template parameter. Keep
2713 these checks in ascending tree code order. */
2714 #define DECL_TEMPLATE_PARM_P(NODE) \
2715 (DECL_LANG_FLAG_0 (NODE) \
2716 && (TREE_CODE (NODE) == CONST_DECL \
2717 || TREE_CODE (NODE) == PARM_DECL \
2718 || TREE_CODE (NODE) == TYPE_DECL \
2719 || TREE_CODE (NODE) == TEMPLATE_DECL))
2721 /* Mark NODE as a template parameter. */
2722 #define SET_DECL_TEMPLATE_PARM_P(NODE) \
2723 (DECL_LANG_FLAG_0 (NODE) = 1)
2725 /* Nonzero if NODE is a template template parameter. */
2726 #define DECL_TEMPLATE_TEMPLATE_PARM_P(NODE) \
2727 (TREE_CODE (NODE) == TEMPLATE_DECL && DECL_TEMPLATE_PARM_P (NODE))
2729 /* Nonzero if NODE is a TEMPLATE_DECL representing an
2730 UNBOUND_CLASS_TEMPLATE tree node. */
2731 #define DECL_UNBOUND_CLASS_TEMPLATE_P(NODE) \
2732 (TREE_CODE (NODE) == TEMPLATE_DECL && !DECL_TEMPLATE_RESULT (NODE))
2734 #define DECL_FUNCTION_TEMPLATE_P(NODE) \
2735 (TREE_CODE (NODE) == TEMPLATE_DECL \
2736 && !DECL_UNBOUND_CLASS_TEMPLATE_P (NODE) \
2737 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == FUNCTION_DECL)
2739 /* Nonzero for a DECL that represents a template class. */
2740 #define DECL_CLASS_TEMPLATE_P(NODE) \
2741 (TREE_CODE (NODE) == TEMPLATE_DECL \
2742 && !DECL_UNBOUND_CLASS_TEMPLATE_P (NODE) \
2743 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == TYPE_DECL \
2744 && !DECL_TEMPLATE_TEMPLATE_PARM_P (NODE))
2746 /* Nonzero if NODE which declares a type. */
2747 #define DECL_DECLARES_TYPE_P(NODE) \
2748 (TREE_CODE (NODE) == TYPE_DECL || DECL_CLASS_TEMPLATE_P (NODE))
2750 /* Nonzero if NODE is the typedef implicitly generated for a type when
2751 the type is declared. In C++, `struct S {};' is roughly
2752 equivalent to `struct S {}; typedef struct S S;' in C.
2753 DECL_IMPLICIT_TYPEDEF_P will hold for the typedef indicated in this
2754 example. In C++, there is a second implicit typedef for each
2755 class, in the scope of `S' itself, so that you can say `S::S'.
2756 DECL_SELF_REFERENCE_P will hold for that second typedef. */
2757 #define DECL_IMPLICIT_TYPEDEF_P(NODE) \
2758 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_2 (NODE))
2759 #define SET_DECL_IMPLICIT_TYPEDEF_P(NODE) \
2760 (DECL_LANG_FLAG_2 (NODE) = 1)
2761 #define DECL_SELF_REFERENCE_P(NODE) \
2762 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_4 (NODE))
2763 #define SET_DECL_SELF_REFERENCE_P(NODE) \
2764 (DECL_LANG_FLAG_4 (NODE) = 1)
2766 /* A `primary' template is one that has its own template header. A
2767 member function of a class template is a template, but not primary.
2768 A member template is primary. Friend templates are primary, too. */
2770 /* Returns the primary template corresponding to these parameters. */
2771 #define DECL_PRIMARY_TEMPLATE(NODE) \
2772 (TREE_TYPE (DECL_INNERMOST_TEMPLATE_PARMS (NODE)))
2774 /* Returns nonzero if NODE is a primary template. */
2775 #define PRIMARY_TEMPLATE_P(NODE) (DECL_PRIMARY_TEMPLATE (NODE) == (NODE))
2777 #define CLASSTYPE_TEMPLATE_LEVEL(NODE) \
2778 (TREE_INT_CST_LOW (TREE_PURPOSE (CLASSTYPE_TI_TEMPLATE (NODE))))
2780 /* Indicates whether or not (and how) a template was expanded for this
2781 FUNCTION_DECL or VAR_DECL.
2782 0=normal declaration, e.g. int min (int, int);
2783 1=implicit template instantiation
2784 2=explicit template specialization, e.g. int min<int> (int, int);
2785 3=explicit template instantiation, e.g. template int min<int> (int, int);
2787 If DECL_USE_TEMPLATE is non-zero, then DECL_TEMPLATE_INFO will also
2789 #define DECL_USE_TEMPLATE(NODE) (DECL_LANG_SPECIFIC (NODE)->decl_flags.use_template)
2791 #define DECL_TEMPLATE_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) & 1)
2792 #define CLASSTYPE_TEMPLATE_INSTANTIATION(NODE) \
2793 (CLASSTYPE_USE_TEMPLATE (NODE) & 1)
2795 #define DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) == 2)
2796 #define SET_DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) = 2)
2798 /* Returns true for an explicit or partial specialization of a class
2800 #define CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
2801 (CLASSTYPE_USE_TEMPLATE (NODE) == 2)
2802 #define SET_CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
2803 (CLASSTYPE_USE_TEMPLATE (NODE) = 2)
2805 #define DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 1)
2806 #define SET_DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 1)
2807 #define CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
2808 (CLASSTYPE_USE_TEMPLATE (NODE) == 1)
2809 #define SET_CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
2810 (CLASSTYPE_USE_TEMPLATE (NODE) = 1)
2812 #define DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 3)
2813 #define SET_DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 3)
2814 #define CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
2815 (CLASSTYPE_USE_TEMPLATE (NODE) == 3)
2816 #define SET_CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
2817 (CLASSTYPE_USE_TEMPLATE (NODE) = 3)
2819 /* Nonzero if DECL is a friend function which is an instantiation
2820 from the point of view of the compiler, but not from the point of
2821 view of the language. For example given:
2822 template <class T> struct S { friend void f(T) {}; };
2823 the declaration of `void f(int)' generated when S<int> is
2824 instantiated will not be a DECL_TEMPLATE_INSTANTIATION, but will be
2825 a DECL_FRIEND_PSUEDO_TEMPLATE_INSTANTIATION. */
2826 #define DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION(DECL) \
2827 (DECL_TEMPLATE_INFO (DECL) && !DECL_USE_TEMPLATE (DECL))
2829 /* Nonzero iff we are currently processing a declaration for an
2830 entity with its own template parameter list, and which is not a
2831 full specialization. */
2832 #define PROCESSING_REAL_TEMPLATE_DECL_P() \
2833 (processing_template_decl > template_class_depth (current_scope ()))
2835 /* Nonzero if this VAR_DECL or FUNCTION_DECL has already been
2836 instantiated, i.e. its definition has been generated from the
2837 pattern given in the template. */
2838 #define DECL_TEMPLATE_INSTANTIATED(NODE) \
2839 DECL_LANG_FLAG_1 (VAR_OR_FUNCTION_DECL_CHECK (NODE))
2841 /* We know what we're doing with this decl now. */
2842 #define DECL_INTERFACE_KNOWN(NODE) DECL_LANG_FLAG_5 (NODE)
2844 /* DECL_EXTERNAL must be set on a decl until the decl is actually emitted,
2845 so that assemble_external will work properly. So we have this flag to
2846 tell us whether the decl is really not external. */
2847 #define DECL_NOT_REALLY_EXTERN(NODE) \
2848 (DECL_LANG_SPECIFIC (NODE)->decl_flags.not_really_extern)
2850 #define DECL_REALLY_EXTERN(NODE) \
2851 (DECL_EXTERNAL (NODE) && ! DECL_NOT_REALLY_EXTERN (NODE))
2853 /* A thunk is a stub function.
2855 A thunk is an alternate entry point for an ordinary FUNCTION_DECL.
2856 The address of the ordinary FUNCTION_DECL is given by the
2857 DECL_INITIAL, which is always an ADDR_EXPR whose operand is a
2858 FUNCTION_DECL. The job of the thunk is to either adjust the this
2859 pointer before transferring control to the FUNCTION_DECL, or call
2860 FUNCTION_DECL and then adjust the result value. Note, the result
2861 pointer adjusting thunk must perform a call to the thunked
2862 function, (or be implemented via passing some invisible parameter
2863 to the thunked function, which is modified to perform the
2864 adjustment just before returning).
2866 A thunk may perform either, or both, of the following operations:
2868 o Adjust the this or result pointer by a constant offset.
2869 o Adjust the this or result pointer by looking up a vcall or vbase offset
2872 A this pointer adjusting thunk converts from a base to a derived
2873 class, and hence adds the offsets. A result pointer adjusting thunk
2874 converts from a derived class to a base, and hence subtracts the
2875 offsets. If both operations are performed, then the constant
2876 adjustment is performed first for this pointer adjustment and last
2877 for the result pointer adjustment.
2879 The constant adjustment is given by THUNK_FIXED_OFFSET. If the
2880 vcall or vbase offset is required, THUNK_VIRTUAL_OFFSET is
2881 used. For this pointer adjusting thunks, it is the vcall offset
2882 into the vtable. For result pointer adjusting thunks it is the
2883 binfo of the virtual base to convert to. Use that binfo's vbase
2886 It is possible to have equivalent covariant thunks. These are
2887 distinct virtual covariant thunks whose vbase offsets happen to
2888 have the same value. THUNK_ALIAS is used to pick one as the
2889 canonical thunk, which will get all the this pointer adjusting
2890 thunks attached to it. */
2892 /* An integer indicating how many bytes should be subtracted from the
2893 this or result pointer when this function is called. */
2894 #define THUNK_FIXED_OFFSET(DECL) \
2895 (DECL_LANG_SPECIFIC (THUNK_FUNCTION_CHECK (DECL))->u.f.u5.fixed_offset)
2897 /* A tree indicating how to perform the virtual adjustment. For a this
2898 adjusting thunk it is the number of bytes to be added to the vtable
2899 to find the vcall offset. For a result adjusting thunk, it is the
2900 binfo of the relevant virtual base. If NULL, then there is no
2901 virtual adjust. (The vptr is always located at offset zero from
2902 the this or result pointer.) (If the covariant type is within the
2903 class hierarchy being laid out, the vbase index is not yet known
2904 at the point we need to create the thunks, hence the need to use
2907 #define THUNK_VIRTUAL_OFFSET(DECL) \
2908 (LANG_DECL_U2_CHECK (FUNCTION_DECL_CHECK (DECL), 0)->access)
2910 /* A thunk which is equivalent to another thunk. */
2911 #define THUNK_ALIAS(DECL) \
2912 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->decl_flags.u.template_info)
2914 /* For thunk NODE, this is the FUNCTION_DECL thunked to. It is
2915 possible for the target to be a thunk too. */
2916 #define THUNK_TARGET(NODE) \
2917 (DECL_LANG_SPECIFIC (NODE)->u.f.befriending_classes)
2919 /* These macros provide convenient access to the various _STMT nodes
2920 created when parsing template declarations. */
2921 #define TRY_STMTS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 0)
2922 #define TRY_HANDLERS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 1)
2924 #define EH_SPEC_STMTS(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 0)
2925 #define EH_SPEC_RAISES(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 1)
2927 #define USING_STMT_NAMESPACE(NODE) TREE_OPERAND (USING_STMT_CHECK (NODE), 0)
2929 /* Nonzero if this try block is a function try block. */
2930 #define FN_TRY_BLOCK_P(NODE) TREE_LANG_FLAG_3 (TRY_BLOCK_CHECK (NODE))
2931 #define HANDLER_PARMS(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 0)
2932 #define HANDLER_BODY(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 1)
2933 #define HANDLER_TYPE(NODE) TREE_TYPE (HANDLER_CHECK (NODE))
2935 /* CLEANUP_STMT accessors. The statement(s) covered, the cleanup to run
2936 and the VAR_DECL for which this cleanup exists. */
2937 #define CLEANUP_BODY(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 0)
2938 #define CLEANUP_EXPR(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 1)
2939 #define CLEANUP_DECL(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 2)
2941 /* IF_STMT accessors. These give access to the condition of the if
2942 statement, the then block of the if statement, and the else block
2943 of the if statement if it exists. */
2944 #define IF_COND(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 0)
2945 #define THEN_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 1)
2946 #define ELSE_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 2)
2948 /* WHILE_STMT accessors. These give access to the condition of the
2949 while statement and the body of the while statement, respectively. */
2950 #define WHILE_COND(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 0)
2951 #define WHILE_BODY(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 1)
2953 /* DO_STMT accessors. These give access to the condition of the do
2954 statement and the body of the do statement, respectively. */
2955 #define DO_COND(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 0)
2956 #define DO_BODY(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 1)
2958 /* FOR_STMT accessors. These give access to the init statement,
2959 condition, update expression, and body of the for statement,
2961 #define FOR_INIT_STMT(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 0)
2962 #define FOR_COND(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 1)
2963 #define FOR_EXPR(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 2)
2964 #define FOR_BODY(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 3)
2966 #define SWITCH_STMT_COND(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 0)
2967 #define SWITCH_STMT_BODY(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 1)
2968 #define SWITCH_STMT_TYPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 2)
2970 /* An enumeration of the kind of tags that C++ accepts. */
2972 none_type = 0, /* Not a tag type. */
2973 record_type, /* "struct" types. */
2974 class_type, /* "class" types. */
2975 union_type, /* "union" types. */
2976 enum_type, /* "enum" types. */
2977 typename_type /* "typename" types. */
2980 /* The various kinds of lvalues we distinguish. */
2981 typedef enum cp_lvalue_kind {
2982 clk_none = 0, /* Things that are not an lvalue. */
2983 clk_ordinary = 1, /* An ordinary lvalue. */
2984 clk_class = 2, /* An rvalue of class-type. */
2985 clk_bitfield = 4, /* An lvalue for a bit-field. */
2986 clk_packed = 8 /* An lvalue for a packed field. */
2989 /* Various kinds of template specialization, instantiation, etc. */
2990 typedef enum tmpl_spec_kind {
2991 tsk_none, /* Not a template at all. */
2992 tsk_invalid_member_spec, /* An explicit member template
2993 specialization, but the enclosing
2994 classes have not all been explicitly
2996 tsk_invalid_expl_inst, /* An explicit instantiation containing
2997 template parameter lists. */
2998 tsk_excessive_parms, /* A template declaration with too many
2999 template parameter lists. */
3000 tsk_insufficient_parms, /* A template declaration with too few
3002 tsk_template, /* A template declaration. */
3003 tsk_expl_spec, /* An explicit specialization. */
3004 tsk_expl_inst /* An explicit instantiation. */
3007 /* The various kinds of access. BINFO_ACCESS depends on these being
3008 two bit quantities. The numerical values are important; they are
3009 used to initialize RTTI data structures, so changing them changes
3011 typedef enum access_kind {
3012 ak_none = 0, /* Inaccessible. */
3013 ak_public = 1, /* Accessible, as a `public' thing. */
3014 ak_protected = 2, /* Accessible, as a `protected' thing. */
3015 ak_private = 3 /* Accessible, as a `private' thing. */
3018 /* The various kinds of special functions. If you add to this list,
3019 you should update special_function_p as well. */
3020 typedef enum special_function_kind {
3021 sfk_none = 0, /* Not a special function. This enumeral
3022 must have value zero; see
3023 special_function_p. */
3024 sfk_constructor, /* A constructor. */
3025 sfk_copy_constructor, /* A copy constructor. */
3026 sfk_assignment_operator, /* An assignment operator. */
3027 sfk_destructor, /* A destructor. */
3028 sfk_complete_destructor, /* A destructor for complete objects. */
3029 sfk_base_destructor, /* A destructor for base subobjects. */
3030 sfk_deleting_destructor, /* A destructor for complete objects that
3031 deletes the object after it has been
3033 sfk_conversion /* A conversion operator. */
3034 } special_function_kind;
3036 /* The various kinds of linkage. From [basic.link],
3038 A name is said to have linkage when it might denote the same
3039 object, reference, function, type, template, namespace or value
3040 as a name introduced in another scope:
3042 -- When a name has external linkage, the entity it denotes can
3043 be referred to from scopes of other translation units or from
3044 other scopes of the same translation unit.
3046 -- When a name has internal linkage, the entity it denotes can
3047 be referred to by names from other scopes in the same
3050 -- When a name has no linkage, the entity it denotes cannot be
3051 referred to by names from other scopes. */
3053 typedef enum linkage_kind {
3054 lk_none, /* No linkage. */
3055 lk_internal, /* Internal linkage. */
3056 lk_external /* External linkage. */
3059 /* Bitmask flags to control type substitution. */
3060 typedef enum tsubst_flags_t {
3061 tf_none = 0, /* nothing special */
3062 tf_error = 1 << 0, /* give error messages */
3063 tf_warning = 1 << 1, /* give warnings too */
3064 tf_ignore_bad_quals = 1 << 2, /* ignore bad cvr qualifiers */
3065 tf_keep_type_decl = 1 << 3, /* retain typedef type decls
3066 (make_typename_type use) */
3067 tf_ptrmem_ok = 1 << 4, /* pointers to member ok (internal
3068 instantiate_type use) */
3069 tf_user = 1 << 5, /* found template must be a user template
3070 (lookup_template_class use) */
3071 tf_conv = 1 << 6 /* We are determining what kind of
3072 conversion might be permissible,
3073 not actually performing the
3077 /* The kind of checking we can do looking in a class hierarchy. */
3078 typedef enum base_access {
3079 ba_any = 0, /* Do not check access, allow an ambiguous base,
3080 prefer a non-virtual base */
3081 ba_unique = 1 << 0, /* Must be a unique base. */
3082 ba_check_bit = 1 << 1, /* Check access. */
3083 ba_check = ba_unique | ba_check_bit,
3084 ba_ignore_scope = 1 << 2, /* Ignore access allowed by local scope. */
3085 ba_quiet = 1 << 3 /* Do not issue error messages. */
3088 /* The various kinds of access check during parsing. */
3089 typedef enum deferring_kind {
3090 dk_no_deferred = 0, /* Check access immediately */
3091 dk_deferred = 1, /* Deferred check */
3092 dk_no_check = 2 /* No access check */
3095 /* The kind of base we can find, looking in a class hierarchy.
3096 Values <0 indicate we failed. */
3097 typedef enum base_kind {
3098 bk_inaccessible = -3, /* The base is inaccessible */
3099 bk_ambig = -2, /* The base is ambiguous */
3100 bk_not_base = -1, /* It is not a base */
3101 bk_same_type = 0, /* It is the same type */
3102 bk_proper_base = 1, /* It is a proper base */
3103 bk_via_virtual = 2 /* It is a proper base, but via a virtual
3104 path. This might not be the canonical
3109 /* A node that is a list (length 1) of error_mark_nodes. */
3110 extern GTY(()) tree error_mark_list;
3112 /* Node for "pointer to (virtual) function".
3113 This may be distinct from ptr_type_node so gdb can distinguish them. */
3114 #define vfunc_ptr_type_node vtable_entry_type
3117 /* For building calls to `delete'. */
3118 extern GTY(()) tree integer_two_node;
3119 extern GTY(()) tree integer_three_node;
3121 /* The number of function bodies which we are currently processing.
3122 (Zero if we are at namespace scope, one inside the body of a
3123 function, two inside the body of a function in a local class, etc.) */
3124 extern int function_depth;
3128 /* These values are used for the `STRICT' parameter to type_unification and
3129 fn_type_unification. Their meanings are described with the
3130 documentation for fn_type_unification. */
3132 typedef enum unification_kind_t {
3136 } unification_kind_t;
3138 /* Macros for operating on a template instantiation level node. */
3140 #define TINST_DECL(NODE) \
3141 (((tinst_level_t) TINST_LEVEL_CHECK (NODE))->decl)
3142 #define TINST_LOCATION(NODE) \
3143 (((tinst_level_t) TINST_LEVEL_CHECK (NODE))->locus)
3144 #define TINST_IN_SYSTEM_HEADER_P(NODE) \
3145 (((tinst_level_t) TINST_LEVEL_CHECK (NODE))->in_system_header_p)
3149 extern int current_class_depth;
3151 /* An array of all local classes present in this translation unit, in
3152 declaration order. */
3153 extern GTY(()) varray_type local_classes;
3155 /* Here's where we control how name mangling takes place. */
3157 /* Cannot use '$' up front, because this confuses gdb
3158 (names beginning with '$' are gdb-local identifiers).
3160 Note that all forms in which the '$' is significant are long enough
3161 for direct indexing (meaning that if we know there is a '$'
3162 at a particular location, we can index into the string at
3163 any other location that provides distinguishing characters). */
3165 /* Define NO_DOLLAR_IN_LABEL in your favorite tm file if your assembler
3166 doesn't allow '$' in symbol names. */
3167 #ifndef NO_DOLLAR_IN_LABEL
3171 #define VPTR_NAME "$v"
3172 #define THROW_NAME "$eh_throw"
3173 #define AUTO_VTABLE_NAME "__vtbl$me__"
3174 #define AUTO_TEMP_NAME "_$tmp_"
3175 #define AUTO_TEMP_FORMAT "_$tmp_%d"
3176 #define VTABLE_BASE "$vb"
3177 #define VTABLE_NAME_PREFIX "__vt_"
3178 #define VFIELD_BASE "$vf"
3179 #define VFIELD_NAME "_vptr$"
3180 #define VFIELD_NAME_FORMAT "_vptr$%s"
3181 #define STATIC_NAME_FORMAT "_%s$%s"
3182 #define ANON_AGGRNAME_FORMAT "$_%d"
3184 #else /* NO_DOLLAR_IN_LABEL */
3186 #ifndef NO_DOT_IN_LABEL
3190 #define VPTR_NAME ".v"
3191 #define THROW_NAME ".eh_throw"
3192 #define AUTO_VTABLE_NAME "__vtbl.me__"
3193 #define AUTO_TEMP_NAME "_.tmp_"
3194 #define AUTO_TEMP_FORMAT "_.tmp_%d"
3195 #define VTABLE_BASE ".vb"
3196 #define VTABLE_NAME_PREFIX "__vt_"
3197 #define VFIELD_BASE ".vf"
3198 #define VFIELD_NAME "_vptr."
3199 #define VFIELD_NAME_FORMAT "_vptr.%s"
3200 #define STATIC_NAME_FORMAT "_%s.%s"
3202 #define ANON_AGGRNAME_FORMAT "._%d"
3204 #else /* NO_DOT_IN_LABEL */
3206 #define VPTR_NAME "__vptr"
3207 #define VPTR_NAME_P(ID_NODE) \
3208 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VPTR_NAME, sizeof (VPTR_NAME) - 1))
3209 #define THROW_NAME "__eh_throw"
3210 #define IN_CHARGE_NAME "__in_chrg"
3211 #define AUTO_VTABLE_NAME "__vtbl_me__"
3212 #define AUTO_TEMP_NAME "__tmp_"
3213 #define TEMP_NAME_P(ID_NODE) \
3214 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, \
3215 sizeof (AUTO_TEMP_NAME) - 1))
3216 #define AUTO_TEMP_FORMAT "__tmp_%d"
3217 #define VTABLE_BASE "__vtb"
3218 #define VTABLE_NAME "__vt_"
3219 #define VTABLE_NAME_PREFIX "__vt_"
3220 #define VTABLE_NAME_P(ID_NODE) \
3221 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VTABLE_NAME, \
3222 sizeof (VTABLE_NAME) - 1))
3223 #define VFIELD_BASE "__vfb"
3224 #define VFIELD_NAME "__vptr_"
3225 #define VFIELD_NAME_P(ID_NODE) \
3226 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, \
3227 sizeof (VFIELD_NAME) - 1))
3228 #define VFIELD_NAME_FORMAT "__vptr_%s"
3229 #define STATIC_NAME_FORMAT "__static_%s_%s"
3231 #define ANON_AGGRNAME_PREFIX "__anon_"
3232 #define ANON_AGGRNAME_P(ID_NODE) \
3233 (!strncmp (IDENTIFIER_POINTER (ID_NODE), ANON_AGGRNAME_PREFIX, \
3234 sizeof (ANON_AGGRNAME_PREFIX) - 1))
3235 #define ANON_AGGRNAME_FORMAT "__anon_%d"
3237 #endif /* NO_DOT_IN_LABEL */
3238 #endif /* NO_DOLLAR_IN_LABEL */
3240 #define THIS_NAME "this"
3242 #define IN_CHARGE_NAME "__in_chrg"
3244 #define VTBL_PTR_TYPE "__vtbl_ptr_type"
3245 #define VTABLE_DELTA_NAME "__delta"
3246 #define VTABLE_PFN_NAME "__pfn"
3248 #define EXCEPTION_CLEANUP_NAME "exception cleanup"
3250 #if !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL)
3252 #define VPTR_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[0] == JOINER \
3253 && IDENTIFIER_POINTER (ID_NODE)[1] == 'v')
3255 #define VTABLE_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == 'v' \
3256 && IDENTIFIER_POINTER (ID_NODE)[2] == 't' \
3257 && IDENTIFIER_POINTER (ID_NODE)[3] == JOINER)
3259 #define TEMP_NAME_P(ID_NODE) \
3260 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, sizeof (AUTO_TEMP_NAME)-1))
3261 #define VFIELD_NAME_P(ID_NODE) \
3262 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, sizeof(VFIELD_NAME)-1))
3264 /* For anonymous aggregate types, we need some sort of name to
3265 hold on to. In practice, this should not appear, but it should
3266 not be harmful if it does. */
3267 #define ANON_AGGRNAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[0] == JOINER \
3268 && IDENTIFIER_POINTER (ID_NODE)[1] == '_')
3269 #endif /* !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) */
3271 /* Returns nonzero iff NODE is a declaration for the global function
3273 #define DECL_MAIN_P(NODE) \
3274 (DECL_EXTERN_C_FUNCTION_P (NODE) \
3275 && DECL_NAME (NODE) != NULL_TREE \
3276 && MAIN_NAME_P (DECL_NAME (NODE)))
3279 /* Nonzero if we're done parsing and into end-of-file activities. */
3283 /* A list of namespace-scope objects which have constructors or
3284 destructors which reside in the global scope. The decl is stored
3285 in the TREE_VALUE slot and the initializer is stored in the
3286 TREE_PURPOSE slot. */
3287 extern GTY(()) tree static_aggregates;
3289 /* Functions called along with real static constructors and destructors. */
3291 extern GTY(()) tree static_ctors;
3292 extern GTY(()) tree static_dtors;
3294 enum overload_flags { NO_SPECIAL = 0, DTOR_FLAG, OP_FLAG, TYPENAME_FLAG };
3296 /* Some macros for char-based bitfields. */
3297 #define B_SET(A,X) ((A)[(X)>>3] |= (1 << ((X)&7)))
3298 #define B_CLR(A,X) ((A)[(X)>>3] &= ~(1 << ((X)&7)))
3299 #define B_TST(A,X) ((A)[(X)>>3] & (1 << ((X)&7)))
3301 /* These are uses as bits in flags passed to build_new_method_call
3302 to control its error reporting behavior.
3304 LOOKUP_PROTECT means flag access violations.
3305 LOOKUP_COMPLAIN mean complain if no suitable member function
3306 matching the arguments is found.
3307 LOOKUP_NORMAL is just a combination of these two.
3308 LOOKUP_NONVIRTUAL means make a direct call to the member function found
3309 LOOKUP_GLOBAL means search through the space of overloaded functions,
3310 as well as the space of member functions.
3311 LOOKUP_ONLYCONVERTING means that non-conversion constructors are not tried.
3312 DIRECT_BIND means that if a temporary is created, it should be created so
3313 that it lives as long as the current variable bindings; otherwise it
3314 only lives until the end of the complete-expression. It also forces
3315 direct-initialization in cases where other parts of the compiler have
3316 already generated a temporary, such as reference initialization and the
3318 LOOKUP_NO_CONVERSION means that user-defined conversions are not
3319 permitted. Built-in conversions are permitted.
3320 LOOKUP_DESTRUCTOR means explicit call to destructor.
3321 LOOKUP_NO_TEMP_BIND means temporaries will not be bound to references.
3323 These are used in global lookup to support elaborated types and
3326 LOOKUP_PREFER_TYPES means not to accept objects, and possibly namespaces.
3327 LOOKUP_PREFER_NAMESPACES means not to accept objects, and possibly types.
3328 LOOKUP_PREFER_BOTH means class-or-namespace-name. */
3330 #define LOOKUP_PROTECT (1 << 0)
3331 #define LOOKUP_COMPLAIN (1 << 1)
3332 #define LOOKUP_NORMAL (LOOKUP_PROTECT | LOOKUP_COMPLAIN)
3333 #define LOOKUP_NONVIRTUAL (1 << 2)
3334 #define LOOKUP_GLOBAL (1 << 3)
3335 #define LOOKUP_ONLYCONVERTING (1 << 4)
3336 #define DIRECT_BIND (1 << 5)
3337 #define LOOKUP_NO_CONVERSION (1 << 6)
3338 #define LOOKUP_DESTRUCTOR (1 << 7)
3339 #define LOOKUP_NO_TEMP_BIND (1 << 8)
3340 #define LOOKUP_PREFER_TYPES (1 << 9)
3341 #define LOOKUP_PREFER_NAMESPACES (1 << 10)
3342 #define LOOKUP_PREFER_BOTH (LOOKUP_PREFER_TYPES | LOOKUP_PREFER_NAMESPACES)
3343 #define LOOKUP_CONSTRUCTOR_CALLABLE (1 << 11)
3345 #define LOOKUP_NAMESPACES_ONLY(F) \
3346 (((F) & LOOKUP_PREFER_NAMESPACES) && !((F) & LOOKUP_PREFER_TYPES))
3347 #define LOOKUP_TYPES_ONLY(F) \
3348 (!((F) & LOOKUP_PREFER_NAMESPACES) && ((F) & LOOKUP_PREFER_TYPES))
3349 #define LOOKUP_QUALIFIERS_ONLY(F) ((F) & LOOKUP_PREFER_BOTH)
3352 /* These flags are used by the conversion code.
3353 CONV_IMPLICIT : Perform implicit conversions (standard and user-defined).
3354 CONV_STATIC : Perform the explicit conversions for static_cast.
3355 CONV_CONST : Perform the explicit conversions for const_cast.
3356 CONV_REINTERPRET: Perform the explicit conversions for reinterpret_cast.
3357 CONV_PRIVATE : Perform upcasts to private bases.
3358 CONV_FORCE_TEMP : Require a new temporary when converting to the same
3361 #define CONV_IMPLICIT 1
3362 #define CONV_STATIC 2
3363 #define CONV_CONST 4
3364 #define CONV_REINTERPRET 8
3365 #define CONV_PRIVATE 16
3366 /* #define CONV_NONCONVERTING 32 */
3367 #define CONV_FORCE_TEMP 64
3368 #define CONV_STATIC_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_FORCE_TEMP)
3369 #define CONV_OLD_CONVERT (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
3371 #define CONV_C_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
3372 | CONV_REINTERPRET | CONV_PRIVATE | CONV_FORCE_TEMP)
3374 /* Used by build_expr_type_conversion to indicate which types are
3375 acceptable as arguments to the expression under consideration. */
3377 #define WANT_INT 1 /* integer types, including bool */
3378 #define WANT_FLOAT 2 /* floating point types */
3379 #define WANT_ENUM 4 /* enumerated types */
3380 #define WANT_POINTER 8 /* pointer types */
3381 #define WANT_NULL 16 /* null pointer constant */
3382 #define WANT_ARITH (WANT_INT | WANT_FLOAT)
3384 /* Used with comptypes, and related functions, to guide type
3387 #define COMPARE_STRICT 0 /* Just check if the types are the
3389 #define COMPARE_BASE 1 /* Check to see if the second type is
3390 derived from the first. */
3391 #define COMPARE_DERIVED 2 /* Like COMPARE_BASE, but in
3393 #define COMPARE_REDECLARATION 4 /* The comparison is being done when
3394 another declaration of an existing
3397 /* Used with push_overloaded_decl. */
3398 #define PUSH_GLOBAL 0 /* Push the DECL into namespace scope,
3399 regardless of the current scope. */
3400 #define PUSH_LOCAL 1 /* Push the DECL into the current
3402 #define PUSH_USING 2 /* We are pushing this DECL as the
3403 result of a using declaration. */
3405 /* Used with start function. */
3406 #define SF_DEFAULT 0 /* No flags. */
3407 #define SF_PRE_PARSED 1 /* The function declaration has
3408 already been parsed. */
3409 #define SF_INCLASS_INLINE 2 /* The function is an inline, defined
3410 in the class body. */
3412 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, or if TYPE2
3413 is derived from TYPE1, or if TYPE2 is a pointer (reference) to a
3414 class derived from the type pointed to (referred to) by TYPE1. */
3415 #define same_or_base_type_p(TYPE1, TYPE2) \
3416 comptypes ((TYPE1), (TYPE2), COMPARE_BASE)
3418 /* These macros are used to access a TEMPLATE_PARM_INDEX. */
3419 #define TEMPLATE_PARM_INDEX_CAST(NODE) \
3420 ((template_parm_index*)TEMPLATE_PARM_INDEX_CHECK (NODE))
3421 #define TEMPLATE_PARM_IDX(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->index)
3422 #define TEMPLATE_PARM_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->level)
3423 #define TEMPLATE_PARM_DESCENDANTS(NODE) (TREE_CHAIN (NODE))
3424 #define TEMPLATE_PARM_ORIG_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->orig_level)
3425 #define TEMPLATE_PARM_DECL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->decl)
3427 /* These macros are for accessing the fields of TEMPLATE_TYPE_PARM,
3428 TEMPLATE_TEMPLATE_PARM and BOUND_TEMPLATE_TEMPLATE_PARM nodes. */
3429 #define TEMPLATE_TYPE_PARM_INDEX(NODE) \
3430 (TREE_CHECK3 ((NODE), TEMPLATE_TYPE_PARM, TEMPLATE_TEMPLATE_PARM, \
3431 BOUND_TEMPLATE_TEMPLATE_PARM))->type.values
3432 #define TEMPLATE_TYPE_IDX(NODE) \
3433 (TEMPLATE_PARM_IDX (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3434 #define TEMPLATE_TYPE_LEVEL(NODE) \
3435 (TEMPLATE_PARM_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3436 #define TEMPLATE_TYPE_ORIG_LEVEL(NODE) \
3437 (TEMPLATE_PARM_ORIG_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3438 #define TEMPLATE_TYPE_DECL(NODE) \
3439 (TEMPLATE_PARM_DECL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3441 /* These constants can used as bit flags in the process of tree formatting.
3443 TFF_PLAIN_IDENTIFIER: unqualified part of a name.
3444 TFF_SCOPE: include the class and namespace scope of the name.
3445 TFF_CHASE_TYPEDEF: print the original type-id instead of the typedef-name.
3446 TFF_DECL_SPECIFIERS: print decl-specifiers.
3447 TFF_CLASS_KEY_OR_ENUM: precede a class-type name (resp. enum name) with
3448 a class-key (resp. `enum').
3449 TFF_RETURN_TYPE: include function return type.
3450 TFF_FUNCTION_DEFAULT_ARGUMENTS: include function default parameter values.
3451 TFF_EXCEPTION_SPECIFICATION: show function exception specification.
3452 TFF_TEMPLATE_HEADER: show the template<...> header in a
3453 template-declaration.
3454 TFF_TEMPLATE_NAME: show only template-name.
3455 TFF_EXPR_IN_PARENS: parenthesize expressions.
3456 TFF_NO_FUNCTION_ARGUMENTS: don't show function arguments. */
3458 #define TFF_PLAIN_IDENTIFIER (0)
3459 #define TFF_SCOPE (1)
3460 #define TFF_CHASE_TYPEDEF (1 << 1)
3461 #define TFF_DECL_SPECIFIERS (1 << 2)
3462 #define TFF_CLASS_KEY_OR_ENUM (1 << 3)
3463 #define TFF_RETURN_TYPE (1 << 4)
3464 #define TFF_FUNCTION_DEFAULT_ARGUMENTS (1 << 5)
3465 #define TFF_EXCEPTION_SPECIFICATION (1 << 6)
3466 #define TFF_TEMPLATE_HEADER (1 << 7)
3467 #define TFF_TEMPLATE_NAME (1 << 8)
3468 #define TFF_EXPR_IN_PARENS (1 << 9)
3469 #define TFF_NO_FUNCTION_ARGUMENTS (1 << 10)
3471 /* Returns the TEMPLATE_DECL associated to a TEMPLATE_TEMPLATE_PARM
3473 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_DECL(NODE) \
3474 ((TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM) \
3475 ? TYPE_TI_TEMPLATE (NODE) \
3480 extern void init_reswords (void);
3482 /* Indexed by TREE_CODE, these tables give C-looking names to
3483 operators represented by TREE_CODES. For example,
3484 opname_tab[(int) MINUS_EXPR] == "-". */
3485 extern const char **opname_tab, **assignop_tab;
3487 typedef struct operator_name_info_t GTY(())
3489 /* The IDENTIFIER_NODE for the operator. */
3491 /* The name of the operator. */
3493 /* The mangled name of the operator. */
3494 const char *mangled_name;
3495 /* The arity of the operator. */
3497 } operator_name_info_t;
3499 /* A mapping from tree codes to operator name information. */
3500 extern GTY(()) operator_name_info_t operator_name_info
3501 [(int) LAST_CPLUS_TREE_CODE];
3502 /* Similar, but for assignment operators. */
3503 extern GTY(()) operator_name_info_t assignment_operator_name_info
3504 [(int) LAST_CPLUS_TREE_CODE];
3506 /* A type-qualifier, or bitmask therefore, using the TYPE_QUAL
3509 typedef int cp_cv_quals;
3511 /* A storage class. */
3513 typedef enum cp_storage_class {
3514 /* sc_none must be zero so that zeroing a cp_decl_specifier_seq
3515 sets the storage_class field to sc_none. */
3524 /* An individual decl-specifier. */
3526 typedef enum cp_decl_spec {
3528 ds_signed = ds_first,
3545 /* A decl-specifier-seq. */
3547 typedef struct cp_decl_specifier_seq {
3548 /* The number of times each of the keywords has been seen. */
3549 unsigned specs[(int) ds_last];
3550 /* The primary type, if any, given by the decl-specifier-seq.
3551 Modifiers, like "short", "const", and "unsigned" are not
3552 reflected here. This field will be a TYPE, unless a typedef-name
3553 was used, in which case it will be a TYPE_DECL. */
3555 /* The attributes, if any, provided with the specifier sequence. */
3557 /* If non-NULL, a built-in type that the user attempted to redefine
3558 to some other type. */
3559 tree redefined_builtin_type;
3560 /* The storage class specified -- or sc_none if no storage class was
3561 explicitly specified. */
3562 cp_storage_class storage_class;
3563 /* True iff TYPE_SPEC indicates a user-defined type. */
3564 BOOL_BITFIELD user_defined_type_p : 1;
3565 /* True iff multiple types were (erroneously) specified for this
3566 decl-specifier-seq. */
3567 BOOL_BITFIELD multiple_types_p : 1;
3568 /* True iff multiple storage classes were (erroneously) specified
3569 for this decl-specifier-seq. */
3570 BOOL_BITFIELD multiple_storage_classes_p : 1;
3571 /* True iff at least one decl-specifier was found. */
3572 BOOL_BITFIELD any_specifiers_p : 1;
3573 /* True iff "int" was explicitly provided. */
3574 BOOL_BITFIELD explicit_int_p : 1;
3575 /* True iff "char" was explicitly provided. */
3576 BOOL_BITFIELD explicit_char_p : 1;
3577 } cp_decl_specifier_seq;
3579 /* The various kinds of declarators. */
3581 typedef enum cp_declarator_kind {
3589 } cp_declarator_kind;
3593 typedef struct cp_declarator cp_declarator;
3595 typedef struct cp_parameter_declarator cp_parameter_declarator;
3597 /* A parameter, before it has been semantically analyzed. */
3598 struct cp_parameter_declarator {
3599 /* The next parameter, or NULL_TREE if none. */
3600 cp_parameter_declarator *next;
3601 /* The decl-specifiers-seq for the parameter. */
3602 cp_decl_specifier_seq decl_specifiers;
3603 /* The declarator for the parameter. */
3604 cp_declarator *declarator;
3605 /* The default-argument expression, or NULL_TREE, if none. */
3606 tree default_argument;
3607 /* True iff this is the first parameter in the list and the
3608 parameter sequence ends with an ellipsis. */
3613 struct cp_declarator {
3614 /* The kind of declarator. */
3615 cp_declarator_kind kind;
3616 /* Attributes that apply to this declarator. */
3618 /* For all but cdk_id and cdk_error, the contained declarator. For
3619 cdk_id and cdk_error, guaranteed to be NULL. */
3620 cp_declarator *declarator;
3621 location_t id_loc; /* Currently only set for cdk_id. */
3623 /* For identifiers. */
3625 /* If non-NULL, the qualifying scope (a NAMESPACE_DECL or
3626 *_TYPE) for this identifier. */
3627 tree qualifying_scope;
3628 /* The unqualified name of the entity -- an IDENTIFIER_NODE,
3629 BIT_NOT_EXPR, or TEMPLATE_ID_EXPR. */
3630 tree unqualified_name;
3631 /* If this is the name of a function, what kind of special
3632 function (if any). */
3633 special_function_kind sfk;
3635 /* For functions. */
3637 /* The parameters to the function. */
3638 cp_parameter_declarator *parameters;
3639 /* The cv-qualifiers for the function. */
3640 cp_cv_quals qualifiers;
3641 /* The exception-specification for the function. */
3642 tree exception_specification;
3646 /* The bounds to the array. */
3649 /* For cdk_pointer, cdk_reference, and cdk_ptrmem. */
3651 /* The cv-qualifiers for the pointer. */
3652 cp_cv_quals qualifiers;
3653 /* For cdk_ptrmem, the class type containing the member. */
3659 /* An erroneous declarator. */
3660 extern cp_declarator *cp_error_declarator;
3662 /* A parameter list indicating for a function with no parameters,
3663 e.g "int f(void)". */
3664 extern cp_parameter_declarator *no_parameters;
3667 extern bool check_dtor_name (tree, tree);
3669 extern tree build_vfield_ref (tree, tree);
3670 extern tree build_conditional_expr (tree, tree, tree);
3671 extern tree build_addr_func (tree);
3672 extern tree build_call (tree, tree);
3673 extern bool null_ptr_cst_p (tree);
3674 extern bool sufficient_parms_p (tree);
3675 extern tree type_decays_to (tree);
3676 extern tree build_user_type_conversion (tree, tree, int);
3677 extern tree build_new_function_call (tree, tree);
3678 extern tree build_operator_new_call (tree, tree, tree *, tree *);
3679 extern tree build_new_method_call (tree, tree, tree, tree, int);
3680 extern tree build_special_member_call (tree, tree, tree, tree, int);
3681 extern tree build_new_op (enum tree_code, int, tree, tree, tree, bool *);
3682 extern tree build_op_delete_call (enum tree_code, tree, tree, bool, tree);
3683 extern bool can_convert (tree, tree);
3684 extern bool can_convert_arg (tree, tree, tree);
3685 extern bool can_convert_arg_bad (tree, tree, tree);
3686 extern bool enforce_access (tree, tree);
3687 extern tree convert_default_arg (tree, tree, tree, int);
3688 extern tree convert_arg_to_ellipsis (tree);
3689 extern tree build_x_va_arg (tree, tree);
3690 extern tree cxx_type_promotes_to (tree);
3691 extern tree type_passed_as (tree);
3692 extern tree convert_for_arg_passing (tree, tree);
3693 extern bool is_properly_derived_from (tree, tree);
3694 extern tree initialize_reference (tree, tree, tree, tree *);
3695 extern tree make_temporary_var_for_ref_to_temp (tree, tree);
3696 extern tree strip_top_quals (tree);
3697 extern tree perform_implicit_conversion (tree, tree);
3698 extern tree perform_direct_initialization_if_possible (tree, tree, bool);
3699 extern tree in_charge_arg_for_name (tree);
3700 extern tree build_cxx_call (tree, tree);
3701 #ifdef ENABLE_CHECKING
3702 extern void validate_conversion_obstack (void);
3703 #endif /* ENABLE_CHECKING */
3706 extern tree build_base_path (enum tree_code, tree, tree, int);
3707 extern tree convert_to_base (tree, tree, bool, bool);
3708 extern tree convert_to_base_statically (tree, tree);
3709 extern tree build_vtbl_ref (tree, tree);
3710 extern tree build_vfn_ref (tree, tree);
3711 extern tree get_vtable_decl (tree, int);
3712 extern void resort_type_method_vec
3713 (void *, void *, gt_pointer_operator, void *);
3714 extern void add_method (tree, tree);
3715 extern int currently_open_class (tree);
3716 extern tree currently_open_derived_class (tree);
3717 extern tree finish_struct (tree, tree);
3718 extern void finish_struct_1 (tree);
3719 extern int resolves_to_fixed_type_p (tree, int *);
3720 extern void init_class_processing (void);
3721 extern int is_empty_class (tree);
3722 extern void pushclass (tree);
3723 extern void popclass (void);
3724 extern void push_nested_class (tree);
3725 extern void pop_nested_class (void);
3726 extern int current_lang_depth (void);
3727 extern void push_lang_context (tree);
3728 extern void pop_lang_context (void);
3729 extern tree instantiate_type (tree, tree, tsubst_flags_t);
3730 extern void print_class_statistics (void);
3731 extern void cxx_print_statistics (void);
3732 extern void cxx_print_xnode (FILE *, tree, int);
3733 extern void cxx_print_decl (FILE *, tree, int);
3734 extern void cxx_print_type (FILE *, tree, int);
3735 extern void cxx_print_identifier (FILE *, tree, int);
3736 extern void cxx_print_error_function (struct diagnostic_context *,
3738 extern void build_self_reference (void);
3739 extern int same_signature_p (tree, tree);
3740 extern void warn_hidden (tree);
3741 extern void maybe_add_class_template_decl_list (tree, tree, int);
3742 extern void unreverse_member_declarations (tree);
3743 extern void invalidate_class_lookup_cache (void);
3744 extern void maybe_note_name_used_in_class (tree, tree);
3745 extern void note_name_declared_in_class (tree, tree);
3746 extern tree get_vtbl_decl_for_binfo (tree);
3747 extern tree get_vtt_name (tree);
3748 extern tree get_primary_binfo (tree);
3749 extern void debug_class (tree);
3750 extern void debug_thunks (tree);
3751 extern tree cp_fold_obj_type_ref (tree, tree);
3752 extern void set_linkage_according_to_type (tree, tree);
3753 extern void determine_key_method (tree);
3754 extern void check_for_override (tree, tree);
3757 extern tree convert_to_reference (tree, tree, int, int, tree);
3758 extern tree convert_from_reference (tree);
3759 extern tree force_rvalue (tree);
3760 extern tree ocp_convert (tree, tree, int, int);
3761 extern tree cp_convert (tree, tree);
3762 extern tree convert_to_void (tree, const char */*implicit context*/);
3763 extern tree convert_force (tree, tree, int);
3764 extern tree build_type_conversion (tree, tree);
3765 extern tree build_expr_type_conversion (int, tree, bool);
3766 extern tree type_promotes_to (tree);
3767 extern tree perform_qualification_conversions (tree, tree);
3768 extern void clone_function_decl (tree, int);
3769 extern void adjust_clone_args (tree);
3772 extern tree poplevel (int, int, int);
3773 extern void insert_block (tree);
3774 extern tree pushdecl (tree);
3775 extern void cxx_init_decl_processing (void);
3776 enum cp_tree_node_structure_enum cp_tree_node_structure
3777 (union lang_tree_node *);
3778 extern bool cxx_mark_addressable (tree);
3779 extern void cxx_push_function_context (struct function *);
3780 extern void cxx_pop_function_context (struct function *);
3781 extern void maybe_push_cleanup_level (tree);
3782 extern void finish_scope (void);
3783 extern void push_switch (tree);
3784 extern void pop_switch (void);
3785 extern tree pushtag (tree, tree, tag_scope);
3786 extern tree make_anon_name (void);
3787 extern int decls_match (tree, tree);
3788 extern tree duplicate_decls (tree, tree);
3789 extern tree pushdecl_top_level (tree);
3790 extern tree pushdecl_top_level_and_finish (tree, tree);
3791 extern tree push_using_decl (tree, tree);
3792 extern tree declare_local_label (tree);
3793 extern tree define_label (location_t, tree);
3794 extern void check_goto (tree);
3795 extern tree make_typename_type (tree, tree, enum tag_types, tsubst_flags_t);
3796 extern tree make_unbound_class_template (tree, tree, tree, tsubst_flags_t);
3797 extern tree check_for_out_of_scope_variable (tree);
3798 extern tree build_library_fn (tree, tree);
3799 extern tree build_library_fn_ptr (const char *, tree);
3800 extern tree build_cp_library_fn_ptr (const char *, tree);
3801 extern tree push_library_fn (tree, tree);
3802 extern tree push_void_library_fn (tree, tree);
3803 extern tree push_throw_library_fn (tree, tree);
3804 extern tree check_tag_decl (cp_decl_specifier_seq *);
3805 extern tree shadow_tag (cp_decl_specifier_seq *);
3806 extern tree groktypename (cp_decl_specifier_seq *, const cp_declarator *);
3807 extern tree start_decl (const cp_declarator *, cp_decl_specifier_seq *, int, tree, tree, tree *);
3808 extern void start_decl_1 (tree);
3809 extern void cp_finish_decl (tree, tree, tree, int);
3810 extern void finish_decl (tree, tree, tree);
3811 extern int cp_complete_array_type (tree *, tree, bool);
3812 extern tree build_ptrmemfunc_type (tree);
3813 extern tree build_ptrmem_type (tree, tree);
3814 /* the grokdeclarator prototype is in decl.h */
3815 extern int copy_fn_p (tree);
3816 extern tree get_scope_of_declarator (const cp_declarator *);
3817 extern void grok_special_member_properties (tree);
3818 extern int grok_ctor_properties (tree, tree);
3819 extern void grok_op_properties (tree, int, bool);
3820 extern tree xref_tag (enum tag_types, tree, tag_scope, bool);
3821 extern tree xref_tag_from_type (tree, tree, tag_scope);
3822 extern void xref_basetypes (tree, tree);
3823 extern tree start_enum (tree);
3824 extern void finish_enum (tree);
3825 extern void build_enumerator (tree, tree, tree);
3826 extern void start_preparsed_function (tree, tree, int);
3827 extern int start_function (cp_decl_specifier_seq *, const cp_declarator *, tree);
3828 extern tree begin_function_body (void);
3829 extern void finish_function_body (tree);
3830 extern tree finish_function (int);
3831 extern tree start_method (cp_decl_specifier_seq *, const cp_declarator *, tree);
3832 extern tree finish_method (tree);
3833 extern void maybe_register_incomplete_var (tree);
3834 extern void complete_vars (tree);
3835 extern void finish_stmt (void);
3836 extern void print_other_binding_stack (struct cp_binding_level *);
3837 extern void revert_static_member_fn (tree);
3838 extern void fixup_anonymous_aggr (tree);
3839 extern int check_static_variable_definition (tree, tree);
3840 extern tree compute_array_index_type (tree, tree);
3841 extern tree check_default_argument (tree, tree);
3842 typedef int (*walk_namespaces_fn) (tree, void *);
3843 extern int walk_namespaces (walk_namespaces_fn,
3845 extern int wrapup_globals_for_namespace (tree, void *);
3846 extern tree create_implicit_typedef (tree, tree);
3847 extern tree maybe_push_decl (tree);
3848 extern tree force_target_expr (tree, tree);
3849 extern tree build_target_expr_with_type (tree, tree);
3850 extern int local_variable_p (tree);
3851 extern int nonstatic_local_decl_p (tree);
3852 extern tree declare_global_var (tree, tree);
3853 extern tree register_dtor_fn (tree);
3854 extern tmpl_spec_kind current_tmpl_spec_kind (int);
3855 extern tree cp_fname_init (const char *, tree *);
3856 extern tree builtin_function (const char *name, tree type,
3858 enum built_in_class cl,
3859 const char *libname, tree attrs);
3860 extern tree check_elaborated_type_specifier (enum tag_types, tree, bool);
3861 extern void warn_extern_redeclared_static (tree, tree);
3862 extern const char *cxx_comdat_group (tree);
3863 extern bool cp_missing_noreturn_ok_p (tree);
3864 extern void initialize_artificial_var (tree, tree);
3865 extern tree check_var_type (tree, tree);
3867 extern bool have_extern_spec;
3870 extern bool check_java_method (tree);
3871 extern cp_cv_quals grok_method_quals (tree, tree, cp_cv_quals);
3872 extern void maybe_retrofit_in_chrg (tree);
3873 extern void maybe_make_one_only (tree);
3874 extern void grokclassfn (tree, tree, enum overload_flags, cp_cv_quals);
3875 extern tree grok_array_decl (tree, tree);
3876 extern tree delete_sanity (tree, tree, bool, int);
3877 extern tree check_classfn (tree, tree, tree);
3878 extern void check_member_template (tree);
3879 extern tree grokfield (const cp_declarator *, cp_decl_specifier_seq *, tree, tree, tree);
3880 extern tree grokbitfield (const cp_declarator *, cp_decl_specifier_seq *, tree);
3881 extern void cplus_decl_attributes (tree *, tree, int);
3882 extern void finish_anon_union (tree);
3883 extern void cp_finish_file (void);
3884 extern tree coerce_new_type (tree);
3885 extern tree coerce_delete_type (tree);
3886 extern void comdat_linkage (tree);
3887 extern void determine_visibility (tree);
3888 extern void import_export_decl (tree);
3889 extern tree build_cleanup (tree);
3890 extern tree build_offset_ref_call_from_tree (tree, tree);
3891 extern void check_default_args (tree);
3892 extern void mark_used (tree);
3893 extern void finish_static_data_member_decl (tree, tree, tree, int);
3894 extern tree cp_build_parm_decl (tree, tree);
3895 extern tree get_guard (tree);
3896 extern tree get_guard_cond (tree);
3897 extern tree set_guard (tree);
3898 extern tree cxx_callgraph_analyze_expr (tree *, int *, tree);
3899 extern void mark_needed (tree);
3900 extern bool decl_needed_p (tree);
3901 extern void note_vague_linkage_fn (tree);
3903 /* XXX Not i18n clean. */
3904 #define cp_deprecated(STR) \
3906 if (warn_deprecated) \
3907 warning ("%s is deprecated, please see the documentation for details", \
3912 extern void init_error (void);
3913 extern const char *type_as_string (tree, int);
3914 extern const char *decl_as_string (tree, int);
3915 extern const char *expr_as_string (tree, int);
3916 extern const char *lang_decl_name (tree, int);
3917 extern const char *language_to_string (enum languages);
3918 extern const char *class_key_or_enum_as_string (tree);
3919 extern void print_instantiation_context (void);
3922 extern void init_exception_processing (void);
3923 extern tree expand_start_catch_block (tree);
3924 extern void expand_end_catch_block (void);
3925 extern tree build_exc_ptr (void);
3926 extern tree build_throw (tree);
3927 extern int nothrow_libfn_p (tree);
3928 extern void check_handlers (tree);
3929 extern void choose_personality_routine (enum languages);
3930 extern tree eh_type_info (tree);
3933 extern rtx cxx_expand_expr (tree, rtx,
3936 extern tree cplus_expand_constant (tree);
3939 extern int is_friend (tree, tree);
3940 extern void make_friend_class (tree, tree, bool);
3941 extern void add_friend (tree, tree, bool);
3942 extern tree do_friend (tree, tree, tree, tree, enum overload_flags, cp_cv_quals, int);
3945 extern tree expand_member_init (tree);
3946 extern void emit_mem_initializers (tree);
3947 extern tree build_aggr_init (tree, tree, int);
3948 extern tree build_init (tree, tree, int);
3949 extern int is_aggr_type (tree, int);
3950 extern tree get_type_value (tree);
3951 extern tree build_zero_init (tree, tree, bool);
3952 extern tree build_offset_ref (tree, tree, bool);
3953 extern tree build_new (tree, tree, tree, tree, int);
3954 extern tree build_vec_init (tree, tree, tree, int);
3955 extern tree build_x_delete (tree, int, tree);
3956 extern tree build_delete (tree, tree, special_function_kind, int, int);
3957 extern void push_base_cleanups (void);
3958 extern tree build_vec_delete (tree, tree, special_function_kind, int);
3959 extern tree create_temporary_var (tree);
3960 extern void initialize_vtbl_ptrs (tree);
3961 extern tree build_java_class_ref (tree);
3962 extern tree integral_constant_value (tree);
3965 extern void cxx_dup_lang_specific_decl (tree);
3966 extern void yyungetc (int, int);
3968 extern tree unqualified_name_lookup_error (tree);
3969 extern tree unqualified_fn_lookup_error (tree);
3970 extern tree build_lang_decl (enum tree_code, tree, tree);
3971 extern void retrofit_lang_decl (tree);
3972 extern tree copy_decl (tree);
3973 extern tree copy_type (tree);
3974 extern tree cxx_make_type (enum tree_code);
3975 extern tree make_aggr_type (enum tree_code);
3976 extern void yyerror (const char *);
3977 extern void yyhook (int);
3978 extern bool cxx_init (void);
3979 extern void cxx_finish (void);
3982 extern void init_method (void);
3983 extern tree make_thunk (tree, bool, tree, tree);
3984 extern void finish_thunk (tree);
3985 extern void use_thunk (tree, bool);
3986 extern void synthesize_method (tree);
3987 extern tree implicitly_declare_fn (special_function_kind, tree, bool);
3988 extern tree lazily_declare_fn (special_function_kind, tree);
3989 extern tree skip_artificial_parms_for (tree, tree);
3992 extern bool maybe_clone_body (tree);
3995 extern void check_template_shadow (tree);
3996 extern tree get_innermost_template_args (tree, int);
3997 extern void maybe_begin_member_template_processing (tree);
3998 extern void maybe_end_member_template_processing (void);
3999 extern tree finish_member_template_decl (tree);
4000 extern void begin_template_parm_list (void);
4001 extern void begin_specialization (void);
4002 extern void reset_specialization (void);
4003 extern void end_specialization (void);
4004 extern void begin_explicit_instantiation (void);
4005 extern void end_explicit_instantiation (void);
4006 extern tree check_explicit_specialization (tree, tree, int, int);
4007 extern tree process_template_parm (tree, tree, bool);
4008 extern tree end_template_parm_list (tree);
4009 extern void end_template_decl (void);
4010 extern tree current_template_args (void);
4011 extern tree push_template_decl (tree);
4012 extern tree push_template_decl_real (tree, int);
4013 extern void redeclare_class_template (tree, tree);
4014 extern tree lookup_template_class (tree, tree, tree, tree, int, tsubst_flags_t);
4015 extern tree lookup_template_function (tree, tree);
4016 extern int uses_template_parms (tree);
4017 extern int uses_template_parms_level (tree, int);
4018 extern tree instantiate_class_template (tree);
4019 extern tree instantiate_template (tree, tree, tsubst_flags_t);
4020 extern int fn_type_unification (tree, tree, tree, tree, tree, unification_kind_t);
4021 extern void mark_decl_instantiated (tree, int);
4022 extern int more_specialized_fn (tree, tree, int);
4023 extern void mark_class_instantiated (tree, int);
4024 extern void do_decl_instantiation (tree, tree);
4025 extern void do_type_instantiation (tree, tree, tsubst_flags_t);
4026 extern tree instantiate_decl (tree, int, int);
4027 extern int push_tinst_level (tree);
4028 extern void pop_tinst_level (void);
4029 extern int more_specialized_class (tree, tree, tree);
4030 extern int comp_template_parms (tree, tree);
4031 extern int template_class_depth (tree);
4032 extern int is_specialization_of (tree, tree);
4033 extern bool is_specialization_of_friend (tree, tree);
4034 extern int comp_template_args (tree, tree);
4035 extern void maybe_process_partial_specialization (tree);
4036 extern tree most_specialized_instantiation (tree);
4037 extern void print_candidates (tree);
4038 extern void instantiate_pending_templates (int);
4039 extern tree tsubst_default_argument (tree, tree, tree);
4040 extern tree tsubst_copy_and_build (tree, tree, tsubst_flags_t, tree, bool);
4041 extern tree most_general_template (tree);
4042 extern tree get_mostly_instantiated_function_type (tree);
4043 extern int problematic_instantiation_changed (void);
4044 extern void record_last_problematic_instantiation (void);
4045 extern tree current_instantiation (void);
4046 extern tree maybe_get_template_decl_from_type_decl (tree);
4047 extern int processing_template_parmlist;
4048 extern bool dependent_type_p (tree);
4049 extern bool any_dependent_template_arguments_p (tree);
4050 extern bool dependent_template_p (tree);
4051 extern bool dependent_template_id_p (tree, tree);
4052 extern bool type_dependent_expression_p (tree);
4053 extern bool any_type_dependent_arguments_p (tree);
4054 extern bool value_dependent_expression_p (tree);
4055 extern tree resolve_typename_type (tree, bool);
4056 extern tree template_for_substitution (tree);
4057 extern tree build_non_dependent_expr (tree);
4058 extern tree build_non_dependent_args (tree);
4059 extern bool reregister_specialization (tree, tree, tree);
4060 extern tree fold_non_dependent_expr (tree);
4061 extern tree fold_decl_constant_value (tree);
4064 extern void init_repo (void);
4065 extern int repo_emit_p (tree);
4066 extern bool repo_export_class_p (tree);
4067 extern void finish_repo (void);
4070 /* A vector of all tinfo decls that haven't been emitted yet. */
4071 extern GTY(()) VEC(tree) *unemitted_tinfo_decls;
4073 extern void init_rtti_processing (void);
4074 extern tree build_typeid (tree);
4075 extern tree get_tinfo_decl (tree);
4076 extern tree get_typeid (tree);
4077 extern tree build_dynamic_cast (tree, tree);
4078 extern void emit_support_tinfos (void);
4079 extern bool emit_tinfo_decl (tree);
4082 extern bool accessible_base_p (tree, tree, bool);
4083 extern tree lookup_base (tree, tree, base_access, base_kind *);
4084 extern tree dcast_base_hint (tree, tree);
4085 extern int accessible_p (tree, tree, bool);
4086 extern tree lookup_field_1 (tree, tree, bool);
4087 extern tree lookup_field (tree, tree, int, bool);
4088 extern int lookup_fnfields_1 (tree, tree);
4089 extern int class_method_index_for_fn (tree, tree);
4090 extern tree lookup_fnfields (tree, tree, int);
4091 extern tree lookup_member (tree, tree, int, bool);
4092 extern int look_for_overrides (tree, tree);
4093 extern void get_pure_virtuals (tree);
4094 extern void maybe_suppress_debug_info (tree);
4095 extern void note_debug_info_needed (tree);
4096 extern void print_search_statistics (void);
4097 extern void reinit_search_statistics (void);
4098 extern tree current_scope (void);
4099 extern int at_function_scope_p (void);
4100 extern bool at_class_scope_p (void);
4101 extern bool at_namespace_scope_p (void);
4102 extern tree context_for_name_lookup (tree);
4103 extern tree lookup_conversions (tree);
4104 extern tree binfo_from_vbase (tree);
4105 extern tree binfo_for_vbase (tree, tree);
4106 extern tree look_for_overrides_here (tree, tree);
4107 #define dfs_skip_bases ((tree)1)
4108 extern tree dfs_walk_all (tree, tree (*) (tree, void *),
4109 tree (*) (tree, void *), void *);
4110 extern tree dfs_walk_once (tree, tree (*) (tree, void *),
4111 tree (*) (tree, void *), void *);
4112 extern tree binfo_via_virtual (tree, tree);
4113 extern tree build_baselink (tree, tree, tree, tree);
4114 extern tree adjust_result_of_qualified_name_lookup
4116 extern tree copied_binfo (tree, tree);
4117 extern tree original_binfo (tree, tree);
4118 extern int shared_member_p (tree);
4120 /* in semantics.c */
4121 extern void push_deferring_access_checks (deferring_kind);
4122 extern void resume_deferring_access_checks (void);
4123 extern void stop_deferring_access_checks (void);
4124 extern void pop_deferring_access_checks (void);
4125 extern tree get_deferred_access_checks (void);
4126 extern void pop_to_parent_deferring_access_checks (void);
4127 extern void perform_deferred_access_checks (void);
4128 extern void perform_or_defer_access_check (tree, tree);
4129 extern void init_cp_semantics (void);
4130 extern void add_decl_expr (tree);
4131 extern tree finish_expr_stmt (tree);
4132 extern tree begin_if_stmt (void);
4133 extern void finish_if_stmt_cond (tree, tree);
4134 extern tree finish_then_clause (tree);
4135 extern void begin_else_clause (tree);
4136 extern void finish_else_clause (tree);
4137 extern void finish_if_stmt (tree);
4138 extern tree begin_while_stmt (void);
4139 extern void finish_while_stmt_cond (tree, tree);
4140 extern void finish_while_stmt (tree);
4141 extern tree begin_do_stmt (void);
4142 extern void finish_do_body (tree);
4143 extern void finish_do_stmt (tree, tree);
4144 extern tree finish_return_stmt (tree);
4145 extern tree begin_for_stmt (void);
4146 extern void finish_for_init_stmt (tree);
4147 extern void finish_for_cond (tree, tree);
4148 extern void finish_for_expr (tree, tree);
4149 extern void finish_for_stmt (tree);
4150 extern tree finish_break_stmt (void);
4151 extern tree finish_continue_stmt (void);
4152 extern tree begin_switch_stmt (void);
4153 extern void finish_switch_cond (tree, tree);
4154 extern void finish_switch_stmt (tree);
4155 extern tree finish_case_label (tree, tree);
4156 extern tree finish_goto_stmt (tree);
4157 extern tree begin_try_block (void);
4158 extern void finish_try_block (tree);
4159 extern tree begin_eh_spec_block (void);
4160 extern void finish_eh_spec_block (tree, tree);
4161 extern void finish_handler_sequence (tree);
4162 extern tree begin_function_try_block (void);
4163 extern void finish_function_try_block (tree);
4164 extern void finish_function_handler_sequence (tree);
4165 extern void finish_cleanup_try_block (tree);
4166 extern tree begin_handler (void);
4167 extern void finish_handler_parms (tree, tree);
4168 extern void finish_handler (tree);
4169 extern void finish_cleanup (tree, tree);
4176 extern tree begin_compound_stmt (unsigned int);
4178 extern void finish_compound_stmt (tree);
4179 extern tree finish_asm_stmt (int, tree, tree, tree, tree);
4180 extern tree finish_label_stmt (tree);
4181 extern void finish_label_decl (tree);
4182 extern tree finish_parenthesized_expr (tree);
4183 extern tree finish_non_static_data_member (tree, tree, tree);
4184 extern tree begin_stmt_expr (void);
4185 extern tree finish_stmt_expr_expr (tree, tree);
4186 extern tree finish_stmt_expr (tree, bool);
4187 extern tree perform_koenig_lookup (tree, tree);
4188 extern tree finish_call_expr (tree, tree, bool, bool);
4189 extern tree finish_increment_expr (tree, enum tree_code);
4190 extern tree finish_this_expr (void);
4191 extern tree finish_pseudo_destructor_expr (tree, tree, tree);
4192 extern tree finish_unary_op_expr (enum tree_code, tree);
4193 extern tree finish_compound_literal (tree, tree);
4194 extern tree finish_fname (tree);
4195 extern void finish_translation_unit (void);
4196 extern tree finish_template_type_parm (tree, tree);
4197 extern tree finish_template_template_parm (tree, tree);
4198 extern tree begin_class_definition (tree);
4199 extern void finish_template_decl (tree);
4200 extern tree finish_template_type (tree, tree, int);
4201 extern tree finish_base_specifier (tree, tree, bool);
4202 extern void finish_member_declaration (tree);
4203 extern void qualified_name_lookup_error (tree, tree, tree);
4204 extern tree finish_id_expression (tree, tree, tree,
4205 cp_id_kind *, tree *,
4208 extern tree finish_typeof (tree);
4209 extern void finish_decl_cleanup (tree, tree);
4210 extern void finish_eh_cleanup (tree);
4211 extern void expand_body (tree);
4212 extern void finish_mem_initializers (tree);
4213 extern tree check_template_template_default_arg (tree);
4214 extern void expand_or_defer_fn (tree);
4215 extern void check_accessibility_of_qualified_id (tree, tree, tree);
4216 extern tree finish_qualified_id_expr (tree, tree, bool, bool);
4217 extern void simplify_aggr_init_expr (tree *);
4218 extern void finalize_nrv (tree *, tree, tree);
4219 extern void note_decl_for_pch (tree);
4222 extern void lang_check_failed (const char *, int,
4224 extern tree stabilize_expr (tree, tree *);
4225 extern void stabilize_call (tree, tree *);
4226 extern bool stabilize_init (tree, tree *);
4227 extern tree add_stmt_to_compound (tree, tree);
4228 extern tree cxx_maybe_build_cleanup (tree);
4229 extern void init_tree (void);
4230 extern int pod_type_p (tree);
4231 extern int zero_init_p (tree);
4232 extern tree canonical_type_variant (tree);
4233 extern tree copy_binfo (tree, tree, tree,
4235 extern int member_p (tree);
4236 extern cp_lvalue_kind real_lvalue_p (tree);
4237 extern bool builtin_valid_in_constant_expr_p (tree);
4238 extern tree build_min (enum tree_code, tree, ...);
4239 extern tree build_min_nt (enum tree_code, ...);
4240 extern tree build_min_non_dep (enum tree_code, tree, ...);
4241 extern tree build_cplus_new (tree, tree);
4242 extern tree get_target_expr (tree);
4243 extern tree build_cplus_array_type (tree, tree);
4244 extern tree hash_tree_cons (tree, tree, tree);
4245 extern tree hash_tree_chain (tree, tree);
4246 extern int is_overloaded_fn (tree);
4247 extern tree get_first_fn (tree);
4248 extern tree ovl_cons (tree, tree);
4249 extern tree build_overload (tree, tree);
4250 extern const char *cxx_printable_name (tree, int);
4251 extern tree build_exception_variant (tree, tree);
4252 extern tree bind_template_template_parm (tree, tree);
4253 extern tree array_type_nelts_total (tree);
4254 extern tree array_type_nelts_top (tree);
4255 extern tree break_out_target_exprs (tree);
4256 extern tree get_type_decl (tree);
4257 extern tree decl_namespace_context (tree);
4258 extern tree lvalue_type (tree);
4259 extern tree error_type (tree);
4260 extern int varargs_function_p (tree);
4261 extern int really_overloaded_fn (tree);
4262 extern bool cp_tree_equal (tree, tree);
4263 extern tree no_linkage_check (tree, bool);
4264 extern void debug_binfo (tree);
4265 extern tree build_dummy_object (tree);
4266 extern tree maybe_dummy_object (tree, tree *);
4267 extern int is_dummy_object (tree);
4268 extern const struct attribute_spec cxx_attribute_table[];
4269 extern tree make_ptrmem_cst (tree, tree);
4270 extern tree cp_build_type_attribute_variant (tree, tree);
4271 extern tree cp_build_qualified_type_real (tree, int, tsubst_flags_t);
4272 #define cp_build_qualified_type(TYPE, QUALS) \
4273 cp_build_qualified_type_real ((TYPE), (QUALS), tf_error | tf_warning)
4274 extern special_function_kind special_function_p (tree);
4275 extern int count_trees (tree);
4276 extern int char_type_p (tree);
4277 extern void verify_stmt_tree (tree);
4278 extern tree find_tree (tree, tree);
4279 extern linkage_kind decl_linkage (tree);
4280 extern tree cp_walk_subtrees (tree*, int*, walk_tree_fn,
4281 void*, struct pointer_set_t*);
4282 extern int cp_cannot_inline_tree_fn (tree*);
4283 extern tree cp_add_pending_fn_decls (void*,tree);
4284 extern int cp_auto_var_in_fn_p (tree,tree);
4285 extern tree fold_if_not_in_template (tree);
4288 extern int string_conv_p (tree, tree, int);
4289 extern tree cp_truthvalue_conversion (tree);
4290 extern tree condition_conversion (tree);
4291 extern tree require_complete_type (tree);
4292 extern tree complete_type (tree);
4293 extern tree complete_type_or_else (tree, tree);
4294 extern int type_unknown_p (tree);
4295 extern tree original_type (tree);
4296 extern bool comp_except_specs (tree, tree, bool);
4297 extern bool comptypes (tree, tree, int);
4298 extern bool compparms (tree, tree);
4299 extern int comp_cv_qualification (tree, tree);
4300 extern int comp_cv_qual_signature (tree, tree);
4301 extern tree cxx_sizeof_or_alignof_expr (tree, enum tree_code);
4302 extern tree cxx_sizeof_or_alignof_type (tree, enum tree_code, bool);
4303 #define cxx_sizeof_nowarn(T) cxx_sizeof_or_alignof_type (T, SIZEOF_EXPR, false)
4304 extern tree inline_conversion (tree);
4305 extern tree decay_conversion (tree);
4306 extern tree default_conversion (tree);
4307 extern tree build_class_member_access_expr (tree, tree, tree, bool);
4308 extern tree finish_class_member_access_expr (tree, tree);
4309 extern tree build_x_indirect_ref (tree, const char *);
4310 extern tree build_indirect_ref (tree, const char *);
4311 extern tree build_array_ref (tree, tree);
4312 extern tree get_member_function_from_ptrfunc (tree *, tree);
4313 extern tree build_x_binary_op (enum tree_code, tree, tree,
4315 extern tree build_x_unary_op (enum tree_code, tree);
4316 extern tree unary_complex_lvalue (enum tree_code, tree);
4317 extern tree build_x_conditional_expr (tree, tree, tree);
4318 extern tree build_x_compound_expr_from_list (tree, const char *);
4319 extern tree build_x_compound_expr (tree, tree);
4320 extern tree build_compound_expr (tree, tree);
4321 extern tree build_static_cast (tree, tree);
4322 extern tree build_reinterpret_cast (tree, tree);
4323 extern tree build_const_cast (tree, tree);
4324 extern tree build_c_cast (tree, tree);
4325 extern tree build_x_modify_expr (tree, enum tree_code, tree);
4326 extern tree build_modify_expr (tree, enum tree_code, tree);
4327 extern tree convert_for_initialization (tree, tree, tree, int, const char *, tree, int);
4328 extern int comp_ptr_ttypes (tree, tree);
4329 extern int ptr_reasonably_similar (tree, tree);
4330 extern tree build_ptrmemfunc (tree, tree, int, bool);
4331 extern int cp_type_quals (tree);
4332 extern bool cp_has_mutable_p (tree);
4333 extern bool at_least_as_qualified_p (tree, tree);
4334 extern void cp_apply_type_quals_to_decl (int, tree);
4335 extern tree build_ptrmemfunc1 (tree, tree, tree);
4336 extern void expand_ptrmemfunc_cst (tree, tree *, tree *);
4337 extern tree pfn_from_ptrmemfunc (tree);
4338 extern tree type_after_usual_arithmetic_conversions (tree, tree);
4339 extern tree composite_pointer_type (tree, tree, tree, tree,
4341 extern tree merge_types (tree, tree);
4342 extern tree check_return_expr (tree);
4343 #define cp_build_binary_op(code, arg1, arg2) \
4344 build_binary_op(code, arg1, arg2, 1)
4345 #define cxx_sizeof(T) cxx_sizeof_or_alignof_type (T, SIZEOF_EXPR, true)
4346 extern tree build_ptrmemfunc_access_expr (tree, tree);
4347 extern tree build_address (tree);
4348 extern tree build_nop (tree, tree);
4349 extern tree non_reference (tree);
4350 extern tree lookup_anon_field (tree, tree);
4351 extern bool invalid_nonstatic_memfn_p (tree);
4352 extern tree convert_member_func_to_ptr (tree, tree);
4353 extern tree convert_ptrmem (tree, tree, bool, bool);
4354 extern int lvalue_or_else (tree, enum lvalue_use);
4355 extern int lvalue_p (tree);
4358 extern void require_complete_eh_spec_types (tree, tree);
4359 extern void cxx_incomplete_type_diagnostic (tree, tree, int);
4360 #undef cxx_incomplete_type_error
4361 extern void cxx_incomplete_type_error (tree, tree);
4362 #define cxx_incomplete_type_error(V,T) \
4363 (cxx_incomplete_type_diagnostic ((V), (T), 0))
4364 extern tree error_not_base_type (tree, tree);
4365 extern tree binfo_or_else (tree, tree);
4366 extern void readonly_error (tree, const char *, int);
4367 extern void complete_type_check_abstract (tree);
4368 extern int abstract_virtuals_error (tree, tree);
4370 extern tree store_init_value (tree, tree);
4371 extern tree digest_init (tree, tree, tree *);
4372 extern tree build_scoped_ref (tree, tree, tree *);
4373 extern tree build_x_arrow (tree);
4374 extern tree build_m_component_ref (tree, tree);
4375 extern tree build_functional_cast (tree, tree);
4376 extern tree add_exception_specifier (tree, tree, int);
4377 extern tree merge_exception_specifiers (tree, tree);
4380 extern void init_mangle (void);
4381 extern void mangle_decl (tree);
4382 extern const char *mangle_type_string (tree);
4383 extern tree mangle_typeinfo_for_type (tree);
4384 extern tree mangle_typeinfo_string_for_type (tree);
4385 extern tree mangle_vtbl_for_type (tree);
4386 extern tree mangle_vtt_for_type (tree);
4387 extern tree mangle_ctor_vtbl_for_type (tree, tree);
4388 extern tree mangle_thunk (tree, int, tree, tree);
4389 extern tree mangle_conv_op_name_for_type (tree);
4390 extern tree mangle_guard_variable (tree);
4391 extern tree mangle_ref_init_variable (tree);
4394 extern bool cp_dump_tree (void *, tree);
4396 /* in cp-gimplify.c */
4397 extern int cp_gimplify_expr (tree *, tree *, tree *);
4398 extern void cp_genericize (tree);
4402 /* In order for the format checking to accept the C++ frontend
4403 diagnostic framework extensions, you must include this file before
4404 toplev.h, not after. */
4405 #define GCC_DIAG_STYLE __gcc_cxxdiag__
4406 #if GCC_VERSION >= 3004
4407 #define ATTRIBUTE_GCC_CXXDIAG(m, n) __attribute__ ((__format__ (GCC_DIAG_STYLE, m, n))) ATTRIBUTE_NONNULL(m)
4409 #define ATTRIBUTE_GCC_CXXDIAG(m, n) ATTRIBUTE_NONNULL(m)
4412 extern void cp_error_at (const char *, ...) ATTRIBUTE_GCC_CXXDIAG(1, 2);
4413 extern void cp_warning_at (const char *, ...) ATTRIBUTE_GCC_CXXDIAG(1, 2);
4414 extern void cp_pedwarn_at (const char *, ...) ATTRIBUTE_GCC_CXXDIAG(1, 2);
4416 #endif /* ! GCC_CP_TREE_H */