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 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"
35 struct diagnostic_context;
37 /* Usage of TREE_LANG_FLAG_?:
38 0: BINFO_MARKED (BINFO nodes).
39 IDENTIFIER_MARKED (IDENTIFIER_NODEs)
40 NEW_EXPR_USE_GLOBAL (in NEW_EXPR).
41 DELETE_EXPR_USE_GLOBAL (in DELETE_EXPR).
42 COMPOUND_EXPR_OVERLOADED (in COMPOUND_EXPR).
43 TREE_INDIRECT_USING (in NAMESPACE_DECL).
44 ICS_USER_FLAG (in _CONV)
45 CLEANUP_P (in TRY_BLOCK)
46 AGGR_INIT_VIA_CTOR_P (in AGGR_INIT_EXPR)
47 PTRMEM_OK_P (in ADDR_EXPR, OFFSET_REF)
48 PARMLIST_ELLIPSIS_P (in PARMLIST)
49 DECL_PRETTY_FUNCTION_P (in VAR_DECL)
50 KOENIG_LOOKUP_P (in CALL_EXPR)
51 1: IDENTIFIER_VIRTUAL_P.
52 TI_PENDING_TEMPLATE_FLAG.
53 TEMPLATE_PARMS_FOR_INLINE.
54 DELETE_EXPR_USE_VEC (in DELETE_EXPR).
55 (TREE_CALLS_NEW) (in _EXPR or _REF) (commented-out).
56 TYPE_BASE_CONVS_MAY_REQUIRE_CODE_P (in _TYPE).
57 ICS_ELLIPSIS_FLAG (in _CONV)
58 BINFO_DEPENDENT_BASE_P (in BINFO)
59 DECL_INITIALIZED_P (in VAR_DECL)
60 2: IDENTIFIER_OPNAME_P.
61 TYPE_POLYMORPHIC_P (in _TYPE)
62 ICS_THIS_FLAG (in _CONV)
63 BINFO_LOST_PRIMARY_P (in BINFO)
64 TREE_PARMLIST (in TREE_LIST)
65 DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (in VAR_DECL)
66 3: TYPE_USES_VIRTUAL_BASECLASSES (in a class TYPE).
67 BINFO_VTABLE_PATH_MARKED.
68 BINFO_PUSHDECLS_MARKED.
69 (TREE_REFERENCE_EXPR) (in NON_LVALUE_EXPR) (commented-out).
70 ICS_BAD_FLAG (in _CONV)
71 FN_TRY_BLOCK_P (in TRY_BLOCK)
72 IDENTIFIER_CTOR_OR_DTOR_P (in IDENTIFIER_NODE)
73 4: BINFO_NEW_VTABLE_MARKED.
74 TREE_HAS_CONSTRUCTOR (in INDIRECT_REF, SAVE_EXPR, CONSTRUCTOR,
76 IDENTIFIER_TYPENAME_P (in IDENTIFIER_NODE)
77 5: C_IS_RESERVED_WORD (in IDENTIFIER_NODE)
78 DECL_VTABLE_OR_VTT_P (in VAR_DECL)
79 6: For future expansion
81 Usage of TYPE_LANG_FLAG_?:
83 1: TYPE_HAS_CONSTRUCTOR.
84 2: TYPE_HAS_DESTRUCTOR.
86 4: TYPE_HAS_NONTRIVIAL_DESTRUCTOR
88 6: TYPE_DEPENDENT_P_VALID
90 Usage of DECL_LANG_FLAG_?:
91 0: DECL_ERROR_REPORTED (in VAR_DECL).
92 DECL_TEMPLATE_PARM_P (in PARM_DECL, CONST_DECL, TYPE_DECL, or TEMPLATE_DECL)
93 DECL_LOCAL_FUNCTION_P (in FUNCTION_DECL)
94 DECL_MUTABLE_P (in FIELD_DECL)
95 1: C_TYPEDEF_EXPLICITLY_SIGNED (in TYPE_DECL).
96 DECL_TEMPLATE_INSTANTIATED (in a VAR_DECL or a FUNCTION_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 7: DECL_DEAD_FOR_LOCAL (in VAR_DECL).
107 DECL_THUNK_P (in a member FUNCTION_DECL)
109 Usage of language-independent fields in a language-dependent manner:
112 This field is BINFO_INDIRECT_PRIMARY_P in a BINFO.
115 This field is used by TYPENAME_TYPEs, TEMPLATE_TYPE_PARMs, and so
116 forth as a substitute for the mark bits provided in `lang_type'.
117 At present, only the six low-order bits are used.
120 For an ENUMERAL_TYPE, this is ENUM_TEMPLATE_INFO.
121 For a FUNCTION_TYPE or METHOD_TYPE, this is TYPE_RAISES_EXCEPTIONS
124 For a binfo, this is a TREE_LIST. There is an entry for each
125 virtual function declared either in BINFO or its direct and
126 indirect primary bases.
128 The BV_DELTA of each node gives the amount by which to adjust the
129 `this' pointer when calling the function. If the method is an
130 overridden version of a base class method, then it is assumed
131 that, prior to adjustment, the this pointer points to an object
134 The BV_VCALL_INDEX of each node, if non-NULL, gives the vtable
135 index of the vcall offset for this entry.
137 The BV_FN is the declaration for the virtual function itself.
140 This is an expression with POINTER_TYPE that gives the value
141 to which the vptr should be initialized. Use get_vtbl_decl_for_binfo
142 to extract the VAR_DECL for the complete vtable.
145 For a VAR_DECL this is DECL_ANON_UNION_ELEMS.
148 This field is NULL for a non-virtual function. For a virtual
149 function, it is eventually set to an INTEGER_CST indicating the
150 index in the vtable at which this function can be found. When
151 a virtual function is declared, but before it is known what
152 function is overridden, this field is the error_mark_node.
154 Temporarily, it may be set to a TREE_LIST whose TREE_VALUE is
155 the virtual function this one overrides, and whose TREE_CHAIN is
156 the old DECL_VINDEX. */
158 /* Language-specific tree checkers. */
160 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
162 #define VAR_OR_FUNCTION_DECL_CHECK(NODE) __extension__ \
163 ({ const tree __t = (NODE); \
164 enum tree_code const __c = TREE_CODE(__t); \
165 if (__c != VAR_DECL && __c != FUNCTION_DECL) \
166 tree_check_failed (__t, VAR_DECL, __FILE__, __LINE__, \
170 #define VAR_FUNCTION_OR_PARM_DECL_CHECK(NODE) __extension__ \
171 ({ const tree __t = (NODE); \
172 enum tree_code const __c = TREE_CODE(__t); \
173 if (__c != VAR_DECL \
174 && __c != FUNCTION_DECL \
175 && __c != PARM_DECL) \
176 tree_check_failed (__t, VAR_DECL, __FILE__, __LINE__, \
180 #define VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK(NODE) __extension__ \
181 ({ const tree __t = (NODE); \
182 enum tree_code const __c = TREE_CODE(__t); \
183 if (__c != VAR_DECL \
184 && __c != FUNCTION_DECL \
185 && __c != TYPE_DECL \
186 && __c != TEMPLATE_DECL) \
187 tree_check_failed (__t, VAR_DECL, __FILE__, __LINE__, \
191 #define RECORD_OR_UNION_TYPE_CHECK(NODE) __extension__ \
192 ({ const tree __t = (NODE); \
193 enum tree_code const __c = TREE_CODE(__t); \
194 if (__c != RECORD_TYPE && __c != UNION_TYPE) \
195 tree_check_failed (__t, RECORD_TYPE, __FILE__, __LINE__, \
199 #define BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK(NODE) __extension__ \
200 ({ const tree __t = (NODE); \
201 enum tree_code const __c = TREE_CODE(__t); \
202 if (__c != BOUND_TEMPLATE_TEMPLATE_PARM) \
203 tree_check_failed (__t, BOUND_TEMPLATE_TEMPLATE_PARM, \
204 __FILE__, __LINE__, __FUNCTION__); \
207 #else /* not ENABLE_TREE_CHECKING, or not gcc */
209 #define VAR_OR_FUNCTION_DECL_CHECK(NODE) (NODE)
210 #define VAR_FUNCTION_OR_PARM_DECL_CHECK(NODE) (NODE)
211 #define VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK(NODE) (NODE)
212 #define RECORD_OR_UNION_TYPE_CHECK(NODE) (NODE)
213 #define BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK(NODE) (NODE)
218 /* Language-dependent contents of an identifier. */
220 struct lang_identifier GTY(())
222 struct c_common_identifier c_common;
223 cxx_binding *namespace_bindings;
224 cxx_binding *bindings;
226 tree class_template_info;
230 /* In an IDENTIFIER_NODE, nonzero if this identifier is actually a
231 keyword. C_RID_CODE (node) is then the RID_* value of the keyword,
232 and C_RID_YYCODE is the token number wanted by Yacc. */
234 #define C_IS_RESERVED_WORD(ID) TREE_LANG_FLAG_5 (ID)
236 #define LANG_IDENTIFIER_CAST(NODE) \
237 ((struct lang_identifier*)IDENTIFIER_NODE_CHECK (NODE))
239 typedef struct template_parm_index_s GTY(())
241 struct tree_common common;
244 HOST_WIDE_INT orig_level;
246 } template_parm_index;
248 struct ptrmem_cst GTY(())
250 struct tree_common common;
251 /* This isn't used, but the middle-end expects all constants to have
256 typedef struct ptrmem_cst * ptrmem_cst_t;
258 #define IDENTIFIER_GLOBAL_VALUE(NODE) \
259 namespace_binding ((NODE), global_namespace)
260 #define SET_IDENTIFIER_GLOBAL_VALUE(NODE, VAL) \
261 set_namespace_binding ((NODE), global_namespace, (VAL))
262 #define IDENTIFIER_NAMESPACE_VALUE(NODE) \
263 namespace_binding ((NODE), current_namespace)
264 #define SET_IDENTIFIER_NAMESPACE_VALUE(NODE, VAL) \
265 set_namespace_binding ((NODE), current_namespace, (VAL))
267 #define CLEANUP_P(NODE) TREE_LANG_FLAG_0 (TRY_BLOCK_CHECK (NODE))
269 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, in the usual
271 #define same_type_p(TYPE1, TYPE2) \
272 comptypes ((TYPE1), (TYPE2), COMPARE_STRICT)
274 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, ignoring
275 top-level qualifiers. */
276 #define same_type_ignoring_top_level_qualifiers_p(TYPE1, TYPE2) \
277 same_type_p (TYPE_MAIN_VARIANT (TYPE1), TYPE_MAIN_VARIANT (TYPE2))
279 /* Nonzero if we are presently building a statement tree, rather
280 than expanding each statement as we encounter it. */
281 #define building_stmt_tree() (last_tree != NULL_TREE)
283 /* Returns nonzero iff NODE is a declaration for the global function
285 #define DECL_MAIN_P(NODE) \
286 (DECL_EXTERN_C_FUNCTION_P (NODE) \
287 && DECL_NAME (NODE) != NULL_TREE \
288 && MAIN_NAME_P (DECL_NAME (NODE)))
290 /* The overloaded FUNCTION_DECL. */
291 #define OVL_FUNCTION(NODE) \
292 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->function)
293 #define OVL_CHAIN(NODE) TREE_CHAIN (NODE)
294 /* Polymorphic access to FUNCTION and CHAIN. */
295 #define OVL_CURRENT(NODE) \
296 ((TREE_CODE (NODE) == OVERLOAD) ? OVL_FUNCTION (NODE) : (NODE))
297 #define OVL_NEXT(NODE) \
298 ((TREE_CODE (NODE) == OVERLOAD) ? TREE_CHAIN (NODE) : NULL_TREE)
299 /* If set, this was imported in a using declaration.
300 This is not to confuse with being used somewhere, which
301 is not important for this node. */
302 #define OVL_USED(NODE) TREE_USED (NODE)
304 struct tree_overload GTY(())
306 struct tree_common common;
310 /* Returns true iff NODE is a BASELINK. */
311 #define BASELINK_P(NODE) \
312 (TREE_CODE (NODE) == BASELINK)
313 /* The BINFO indicating the base from which the BASELINK_FUNCTIONS came. */
314 #define BASELINK_BINFO(NODE) \
315 (((struct tree_baselink*) BASELINK_CHECK (NODE))->binfo)
316 /* The functions referred to by the BASELINK; either a FUNCTION_DECL,
317 a TEMPLATE_DECL, an OVERLOAD, or a TEMPLATE_ID_EXPR. */
318 #define BASELINK_FUNCTIONS(NODE) \
319 (((struct tree_baselink*) BASELINK_CHECK (NODE))->functions)
320 /* The BINFO in which the search for the functions indicated by this baselink
321 began. This base is used to determine the accessibility of functions
322 selected by overload resolution. */
323 #define BASELINK_ACCESS_BINFO(NODE) \
324 (((struct tree_baselink*) BASELINK_CHECK (NODE))->access_binfo)
325 /* For a type-conversion operator, the BASELINK_OPTYPE indicates the type
326 to which the conversion should occur. This value is important if
327 the BASELINK_FUNCTIONS include a template conversion operator --
328 the BASELINK_OPTYPE can be used to determine what type the user
330 #define BASELINK_OPTYPE(NODE) \
331 (TREE_CHAIN (BASELINK_CHECK (NODE)))
333 struct tree_baselink GTY(())
335 struct tree_common common;
341 /* The different kinds of ids that we ecounter. */
343 typedef enum cp_id_kind
345 /* Not an id at all. */
347 /* An unqualified-id that is not a template-id. */
348 CP_ID_KIND_UNQUALIFIED,
349 /* An unqualified-id that is a dependent name. */
350 CP_ID_KIND_UNQUALIFIED_DEPENDENT,
351 /* An unqualified template-id. */
352 CP_ID_KIND_TEMPLATE_ID,
353 /* A qualified-id. */
357 /* Macros for access to language-specific slots in an identifier. */
359 #define IDENTIFIER_NAMESPACE_BINDINGS(NODE) \
360 (LANG_IDENTIFIER_CAST (NODE)->namespace_bindings)
361 #define IDENTIFIER_TEMPLATE(NODE) \
362 (LANG_IDENTIFIER_CAST (NODE)->class_template_info)
364 /* The IDENTIFIER_BINDING is the innermost cxx_binding for the
365 identifier. It's PREVIOUS is the next outermost binding. Each
366 VALUE field is a DECL for the associated declaration. Thus,
367 name lookup consists simply of pulling off the node at the front
368 of the list (modulo oddities for looking up the names of types,
369 and such.) You can use SCOPE field to determine the scope
370 that bound the name. */
371 #define IDENTIFIER_BINDING(NODE) \
372 (LANG_IDENTIFIER_CAST (NODE)->bindings)
374 /* The IDENTIFIER_VALUE is the value of the IDENTIFIER_BINDING, or
375 NULL_TREE if there is no binding. */
376 #define IDENTIFIER_VALUE(NODE) \
377 (IDENTIFIER_BINDING (NODE) ? IDENTIFIER_BINDING (NODE)->value : NULL)
379 /* If IDENTIFIER_CLASS_VALUE is set, then NODE is bound in the current
380 class, and IDENTIFIER_CLASS_VALUE is the value binding. This is
381 just a pointer to the VALUE field of one of the bindings in the
382 IDENTIFIER_BINDINGs list, so any time that this is non-NULL so is
383 IDENTIFIER_BINDING. */
384 #define IDENTIFIER_CLASS_VALUE(NODE) \
385 (LANG_IDENTIFIER_CAST (NODE)->class_value)
387 /* TREE_TYPE only indicates on local and class scope the current
388 type. For namespace scope, the presence of a type in any namespace
389 is indicated with global_type_node, and the real type behind must
390 be found through lookup. */
391 #define IDENTIFIER_TYPE_VALUE(NODE) identifier_type_value (NODE)
392 #define REAL_IDENTIFIER_TYPE_VALUE(NODE) TREE_TYPE (NODE)
393 #define SET_IDENTIFIER_TYPE_VALUE(NODE,TYPE) (TREE_TYPE (NODE) = (TYPE))
394 #define IDENTIFIER_HAS_TYPE_VALUE(NODE) (IDENTIFIER_TYPE_VALUE (NODE) ? 1 : 0)
396 #define IDENTIFIER_LABEL_VALUE(NODE) \
397 (LANG_IDENTIFIER_CAST (NODE)->label_value)
398 #define SET_IDENTIFIER_LABEL_VALUE(NODE, VALUE) \
399 IDENTIFIER_LABEL_VALUE (NODE) = (VALUE)
401 /* Nonzero if this identifier is used as a virtual function name somewhere
402 (optimizes searches). */
403 #define IDENTIFIER_VIRTUAL_P(NODE) TREE_LANG_FLAG_1 (NODE)
405 /* Nonzero if this identifier is the prefix for a mangled C++ operator
407 #define IDENTIFIER_OPNAME_P(NODE) TREE_LANG_FLAG_2 (NODE)
409 /* Nonzero if this identifier is the name of a type-conversion
411 #define IDENTIFIER_TYPENAME_P(NODE) \
412 TREE_LANG_FLAG_4 (NODE)
414 /* Nonzero if this identifier is the name of a constructor or
416 #define IDENTIFIER_CTOR_OR_DTOR_P(NODE) \
417 TREE_LANG_FLAG_3 (NODE)
419 /* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */
420 #define C_TYPE_FIELDS_READONLY(TYPE) \
421 (LANG_TYPE_CLASS_CHECK (TYPE)->fields_readonly)
423 /* Store a value in that field. */
424 #define C_SET_EXP_ORIGINAL_CODE(EXP, CODE) \
425 (TREE_COMPLEXITY (EXP) = (int)(CODE))
427 /* The tokens stored in the default argument. */
429 #define DEFARG_TOKENS(NODE) \
430 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->tokens)
432 struct tree_default_arg GTY (())
434 struct tree_common common;
435 struct cp_token_cache *tokens;
438 enum cp_tree_node_structure_enum {
451 /* The resulting tree type. */
452 union lang_tree_node GTY((desc ("cp_tree_node_structure (&%h)"),
453 chain_next ("(union lang_tree_node *)TREE_CHAIN (&%h.generic)")))
455 union tree_node GTY ((tag ("TS_CP_GENERIC"),
456 desc ("tree_node_structure (&%h)"))) generic;
457 struct template_parm_index_s GTY ((tag ("TS_CP_TPI"))) tpi;
458 struct ptrmem_cst GTY ((tag ("TS_CP_PTRMEM"))) ptrmem;
459 struct tree_overload GTY ((tag ("TS_CP_OVERLOAD"))) overload;
460 struct tree_baselink GTY ((tag ("TS_CP_BASELINK"))) baselink;
461 struct tree_default_arg GTY ((tag ("TS_CP_DEFAULT_ARG"))) default_arg;
462 struct lang_identifier GTY ((tag ("TS_CP_IDENTIFIER"))) identifier;
469 CPTI_JAVA_SHORT_TYPE,
472 CPTI_JAVA_FLOAT_TYPE,
473 CPTI_JAVA_DOUBLE_TYPE,
475 CPTI_JAVA_BOOLEAN_TYPE,
478 CPTI_VTABLE_ENTRY_TYPE,
480 CPTI_VTABLE_INDEX_TYPE,
490 CPTI_CLASS_DESC_TYPE,
491 CPTI_SI_CLASS_DESC_TYPE,
492 CPTI_VMI_CLASS_DESC_TYPE,
503 CPTI_TYPE_INFO_PTR_TYPE,
504 CPTI_TYPE_INFO_REF_TYPE,
506 CPTI_GLOBAL_DELETE_FNDECL,
509 CPTI_CTOR_IDENTIFIER,
510 CPTI_COMPLETE_CTOR_IDENTIFIER,
511 CPTI_BASE_CTOR_IDENTIFIER,
512 CPTI_DTOR_IDENTIFIER,
513 CPTI_COMPLETE_DTOR_IDENTIFIER,
514 CPTI_BASE_DTOR_IDENTIFIER,
515 CPTI_DELETING_DTOR_IDENTIFIER,
516 CPTI_DELTA_IDENTIFIER,
517 CPTI_IN_CHARGE_IDENTIFIER,
518 CPTI_VTT_PARM_IDENTIFIER,
519 CPTI_NELTS_IDENTIFIER,
520 CPTI_THIS_IDENTIFIER,
522 CPTI_VPTR_IDENTIFIER,
526 CPTI_LANG_NAME_CPLUSPLUS,
529 CPTI_EMPTY_EXCEPT_SPEC,
533 CPTI_CALL_UNEXPECTED,
543 extern GTY(()) tree cp_global_trees[CPTI_MAX];
545 #define java_byte_type_node cp_global_trees[CPTI_JAVA_BYTE_TYPE]
546 #define java_short_type_node cp_global_trees[CPTI_JAVA_SHORT_TYPE]
547 #define java_int_type_node cp_global_trees[CPTI_JAVA_INT_TYPE]
548 #define java_long_type_node cp_global_trees[CPTI_JAVA_LONG_TYPE]
549 #define java_float_type_node cp_global_trees[CPTI_JAVA_FLOAT_TYPE]
550 #define java_double_type_node cp_global_trees[CPTI_JAVA_DOUBLE_TYPE]
551 #define java_char_type_node cp_global_trees[CPTI_JAVA_CHAR_TYPE]
552 #define java_boolean_type_node cp_global_trees[CPTI_JAVA_BOOLEAN_TYPE]
554 #define wchar_decl_node cp_global_trees[CPTI_WCHAR_DECL]
555 #define vtable_entry_type cp_global_trees[CPTI_VTABLE_ENTRY_TYPE]
556 /* The type used to represent an offset by which to adjust the `this'
557 pointer in pointer-to-member types. */
558 #define delta_type_node cp_global_trees[CPTI_DELTA_TYPE]
559 /* The type used to represent an index into the vtable. */
560 #define vtable_index_type cp_global_trees[CPTI_VTABLE_INDEX_TYPE]
562 #define ti_desc_type_node cp_global_trees[CPTI_TI_DESC_TYPE]
563 #define bltn_desc_type_node cp_global_trees[CPTI_BLTN_DESC_TYPE]
564 #define ptr_desc_type_node cp_global_trees[CPTI_PTR_DESC_TYPE]
565 #define ary_desc_type_node cp_global_trees[CPTI_ARY_DESC_TYPE]
566 #define func_desc_type_node cp_global_trees[CPTI_FUNC_DESC_TYPE]
567 #define enum_desc_type_node cp_global_trees[CPTI_ENUM_DESC_TYPE]
568 #define class_desc_type_node cp_global_trees[CPTI_CLASS_DESC_TYPE]
569 #define si_class_desc_type_node cp_global_trees[CPTI_SI_CLASS_DESC_TYPE]
570 #define vmi_class_desc_type_node cp_global_trees[CPTI_VMI_CLASS_DESC_TYPE]
571 #define ptm_desc_type_node cp_global_trees[CPTI_PTM_DESC_TYPE]
572 #define base_desc_type_node cp_global_trees[CPTI_BASE_DESC_TYPE]
574 #define class_type_node cp_global_trees[CPTI_CLASS_TYPE]
575 #define unknown_type_node cp_global_trees[CPTI_UNKNOWN_TYPE]
576 #define vtbl_type_node cp_global_trees[CPTI_VTBL_TYPE]
577 #define vtbl_ptr_type_node cp_global_trees[CPTI_VTBL_PTR_TYPE]
578 #define std_node cp_global_trees[CPTI_STD]
579 #define abi_node cp_global_trees[CPTI_ABI]
580 #define type_info_type_node cp_global_trees[CPTI_TYPE_INFO_TYPE]
581 #define type_info_ptr_type cp_global_trees[CPTI_TYPE_INFO_PTR_TYPE]
582 #define type_info_ref_type cp_global_trees[CPTI_TYPE_INFO_REF_TYPE]
583 #define abort_fndecl cp_global_trees[CPTI_ABORT_FNDECL]
584 #define global_delete_fndecl cp_global_trees[CPTI_GLOBAL_DELETE_FNDECL]
585 #define current_aggr cp_global_trees[CPTI_AGGR_TAG]
587 /* We cache these tree nodes so as to call get_identifier less
590 /* The name of a constructor that takes an in-charge parameter to
591 decide whether or not to construct virtual base classes. */
592 #define ctor_identifier cp_global_trees[CPTI_CTOR_IDENTIFIER]
593 /* The name of a constructor that constructs virtual base classes. */
594 #define complete_ctor_identifier cp_global_trees[CPTI_COMPLETE_CTOR_IDENTIFIER]
595 /* The name of a constructor that does not construct virtual base classes. */
596 #define base_ctor_identifier cp_global_trees[CPTI_BASE_CTOR_IDENTIFIER]
597 /* The name of a destructor that takes an in-charge parameter to
598 decide whether or not to destroy virtual base classes and whether
599 or not to delete the object. */
600 #define dtor_identifier cp_global_trees[CPTI_DTOR_IDENTIFIER]
601 /* The name of a destructor that destroys virtual base classes. */
602 #define complete_dtor_identifier cp_global_trees[CPTI_COMPLETE_DTOR_IDENTIFIER]
603 /* The name of a destructor that does not destroy virtual base
605 #define base_dtor_identifier cp_global_trees[CPTI_BASE_DTOR_IDENTIFIER]
606 /* The name of a destructor that destroys virtual base classes, and
607 then deletes the entire object. */
608 #define deleting_dtor_identifier cp_global_trees[CPTI_DELETING_DTOR_IDENTIFIER]
609 #define delta_identifier cp_global_trees[CPTI_DELTA_IDENTIFIER]
610 #define in_charge_identifier cp_global_trees[CPTI_IN_CHARGE_IDENTIFIER]
611 /* The name of the parameter that contains a pointer to the VTT to use
612 for this subobject constructor or destructor. */
613 #define vtt_parm_identifier cp_global_trees[CPTI_VTT_PARM_IDENTIFIER]
614 #define nelts_identifier cp_global_trees[CPTI_NELTS_IDENTIFIER]
615 #define this_identifier cp_global_trees[CPTI_THIS_IDENTIFIER]
616 #define pfn_identifier cp_global_trees[CPTI_PFN_IDENTIFIER]
617 #define vptr_identifier cp_global_trees[CPTI_VPTR_IDENTIFIER]
618 /* The name of the std namespace. */
619 #define std_identifier cp_global_trees[CPTI_STD_IDENTIFIER]
620 #define lang_name_c cp_global_trees[CPTI_LANG_NAME_C]
621 #define lang_name_cplusplus cp_global_trees[CPTI_LANG_NAME_CPLUSPLUS]
622 #define lang_name_java cp_global_trees[CPTI_LANG_NAME_JAVA]
624 /* Exception specifier used for throw(). */
625 #define empty_except_spec cp_global_trees[CPTI_EMPTY_EXCEPT_SPEC]
627 /* The node for `__null'. */
628 #define null_node cp_global_trees[CPTI_NULL]
630 /* If non-NULL, a POINTER_TYPE equivalent to (java::lang::Class*). */
631 #define jclass_node cp_global_trees[CPTI_JCLASS]
633 /* The declaration for `std::terminate'. */
634 #define terminate_node cp_global_trees[CPTI_TERMINATE]
636 /* The declaration for "__cxa_call_unexpected". */
637 #define call_unexpected_node cp_global_trees[CPTI_CALL_UNEXPECTED]
639 /* A pointer to `std::atexit'. */
640 #define atexit_node cp_global_trees[CPTI_ATEXIT]
642 /* A pointer to `__dso_handle'. */
643 #define dso_handle_node cp_global_trees[CPTI_DSO_HANDLE]
645 /* The declaration of the dynamic_cast runtime. */
646 #define dynamic_cast_node cp_global_trees[CPTI_DCAST]
648 /* The type of a destructor. */
649 #define cleanup_type cp_global_trees[CPTI_CLEANUP_TYPE]
651 /* The type of the vtt parameter passed to subobject constructors and
653 #define vtt_parm_type cp_global_trees[CPTI_VTT_PARM_TYPE]
655 /* A TREE_LIST of the dynamic classes whose vtables may have to be
656 emitted in this translation unit. */
658 #define keyed_classes cp_global_trees[CPTI_KEYED_CLASSES]
660 /* Node to indicate default access. This must be distinct from the
661 access nodes in tree.h. */
663 #define access_default_node null_node
667 struct saved_scope GTY(())
669 cxx_saved_binding *old_bindings;
674 tree access_specifier;
676 varray_type lang_base;
679 tree x_previous_class_type;
680 tree x_previous_class_values;
683 HOST_WIDE_INT x_processing_template_decl;
684 int x_processing_specialization;
685 bool x_processing_explicit_instantiation;
686 int need_pop_function_context;
688 struct stmt_tree_s x_stmt_tree;
690 struct cp_binding_level *class_bindings;
691 struct cp_binding_level *bindings;
693 struct saved_scope *prev;
696 /* The current open namespace. */
698 #define current_namespace scope_chain->old_namespace
700 /* The stack for namespaces of current declarations. */
702 #define decl_namespace_list scope_chain->decl_ns_list
704 /* IDENTIFIER_NODE: name of current class */
706 #define current_class_name scope_chain->class_name
708 /* _TYPE: the type of the current class */
710 #define current_class_type scope_chain->class_type
712 /* When parsing a class definition, the access specifier most recently
713 given by the user, or, if no access specifier was given, the
714 default value appropriate for the kind of class (i.e., struct,
717 #define current_access_specifier scope_chain->access_specifier
719 /* Pointer to the top of the language name stack. */
721 #define current_lang_base scope_chain->lang_base
722 #define current_lang_name scope_chain->lang_name
724 /* Parsing a function declarator leaves a list of parameter names
725 or a chain or parameter decls here. */
727 #define current_template_parms scope_chain->template_parms
729 #define processing_template_decl scope_chain->x_processing_template_decl
730 #define processing_specialization scope_chain->x_processing_specialization
731 #define processing_explicit_instantiation scope_chain->x_processing_explicit_instantiation
733 /* _TYPE: the previous type that was a class */
735 #define previous_class_type scope_chain->x_previous_class_type
737 /* This is a copy of the class_shadowed list of the previous class
738 binding contour when at global scope. It's used to reset
739 IDENTIFIER_CLASS_VALUEs when entering another class scope (i.e. a
742 #define previous_class_values scope_chain->x_previous_class_values
744 /* A list of private types mentioned, for deferred access checking. */
746 extern GTY(()) struct saved_scope *scope_chain;
748 /* Global state pertinent to the current function. */
750 struct language_function GTY(())
752 struct c_language_function base;
755 tree x_current_class_ptr;
756 tree x_current_class_ref;
757 tree x_eh_spec_block;
758 tree x_in_charge_parm;
764 int returns_abnormally;
765 int in_function_try_handler;
766 int in_base_initializer;
768 /* True if this function can throw an exception. */
769 BOOL_BITFIELD can_throw : 1;
771 struct named_label_use_list *x_named_label_uses;
772 struct named_label_list *x_named_labels;
773 struct cp_binding_level *bindings;
774 varray_type x_local_names;
776 const char *cannot_inline;
779 /* The current C++-specific per-function global variables. */
781 #define cp_function_chain (cfun->language)
783 /* In a destructor, the point at which all derived class destroying
784 has been done, just before any base class destroying will be done. */
786 #define dtor_label cp_function_chain->x_dtor_label
788 /* When we're processing a member function, current_class_ptr is the
789 PARM_DECL for the `this' pointer. The current_class_ref is an
790 expression for `*this'. */
792 #define current_class_ptr \
793 (cfun ? cp_function_chain->x_current_class_ptr : NULL_TREE)
794 #define current_class_ref \
795 (cfun ? cp_function_chain->x_current_class_ref : NULL_TREE)
797 /* The EH_SPEC_BLOCK for the exception-specifiers for the current
800 #define current_eh_spec_block cp_function_chain->x_eh_spec_block
802 /* The `__in_chrg' parameter for the current function. Only used for
803 constructors and destructors. */
805 #define current_in_charge_parm cp_function_chain->x_in_charge_parm
807 /* The `__vtt_parm' parameter for the current function. Only used for
808 constructors and destructors. */
810 #define current_vtt_parm cp_function_chain->x_vtt_parm
812 /* Set to 0 at beginning of a function definition, set to 1 if
813 a return statement that specifies a return value is seen. */
815 #define current_function_returns_value cp_function_chain->returns_value
817 /* Set to 0 at beginning of a function definition, set to 1 if
818 a return statement with no argument is seen. */
820 #define current_function_returns_null cp_function_chain->returns_null
822 /* Set to 0 at beginning of a function definition, set to 1 if
823 a call to a noreturn function is seen. */
825 #define current_function_returns_abnormally \
826 cp_function_chain->returns_abnormally
828 /* Nonzero if we are processing a base initializer. Zero elsewhere. */
829 #define in_base_initializer cp_function_chain->in_base_initializer
831 #define in_function_try_handler cp_function_chain->in_function_try_handler
833 /* Expression always returned from function, or error_mark_node
834 otherwise, for use by the automatic named return value optimization. */
836 #define current_function_return_value \
837 (cp_function_chain->x_return_value)
839 /* True if NAME is the IDENTIFIER_NODE for an overloaded "operator
840 new" or "operator delete". */
841 #define NEW_DELETE_OPNAME_P(NAME) \
842 ((NAME) == ansi_opname (NEW_EXPR) \
843 || (NAME) == ansi_opname (VEC_NEW_EXPR) \
844 || (NAME) == ansi_opname (DELETE_EXPR) \
845 || (NAME) == ansi_opname (VEC_DELETE_EXPR))
847 #define ansi_opname(CODE) \
848 (operator_name_info[(int) (CODE)].identifier)
849 #define ansi_assopname(CODE) \
850 (assignment_operator_name_info[(int) (CODE)].identifier)
852 /* True if NODE is an erroneous expression. */
854 #define error_operand_p(NODE) \
855 ((NODE) == error_mark_node \
856 || ((NODE) && TREE_TYPE ((NODE)) == error_mark_node))
858 /* INTERFACE_ONLY nonzero means that we are in an "interface"
859 section of the compiler. INTERFACE_UNKNOWN nonzero means
860 we cannot trust the value of INTERFACE_ONLY. If INTERFACE_UNKNOWN
861 is zero and INTERFACE_ONLY is zero, it means that we are responsible
862 for exporting definitions that others might need. */
863 extern int interface_only, interface_unknown;
865 /* C++ language-specific tree codes. */
866 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) SYM,
867 enum cplus_tree_code {
868 CP_DUMMY_TREE_CODE = LAST_C_TREE_CODE,
869 #include "cp-tree.def"
874 #define cp_stmt_codes \
875 CTOR_INITIALIZER, TRY_BLOCK, HANDLER, \
876 EH_SPEC_BLOCK, USING_STMT, TAG_DEFN
878 enum languages { lang_c, lang_cplusplus, lang_java };
880 /* Macros to make error reporting functions' lives easier. */
881 #define TYPE_IDENTIFIER(NODE) (DECL_NAME (TYPE_NAME (NODE)))
882 #define TYPE_LINKAGE_IDENTIFIER(NODE) \
883 (TYPE_IDENTIFIER (TYPE_MAIN_VARIANT (NODE)))
884 #define TYPE_NAME_STRING(NODE) (IDENTIFIER_POINTER (TYPE_IDENTIFIER (NODE)))
885 #define TYPE_NAME_LENGTH(NODE) (IDENTIFIER_LENGTH (TYPE_IDENTIFIER (NODE)))
887 /* Nonzero if NODE has no name for linkage purposes. */
888 #define TYPE_ANONYMOUS_P(NODE) \
889 (TAGGED_TYPE_P (NODE) && ANON_AGGRNAME_P (TYPE_LINKAGE_IDENTIFIER (NODE)))
891 /* The _DECL for this _TYPE. */
892 #define TYPE_MAIN_DECL(NODE) (TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE)))
894 /* Nonzero if T is a class (or struct or union) type. Also nonzero
895 for template type parameters, typename types, and instantiated
896 template template parameters. Despite its name,
897 this macro has nothing to do with the definition of aggregate given
898 in the standard. Think of this macro as MAYBE_CLASS_TYPE_P. */
899 #define IS_AGGR_TYPE(T) \
900 (TREE_CODE (T) == TEMPLATE_TYPE_PARM \
901 || TREE_CODE (T) == TYPENAME_TYPE \
902 || TREE_CODE (T) == TYPEOF_TYPE \
903 || TREE_CODE (T) == BOUND_TEMPLATE_TEMPLATE_PARM \
904 || TYPE_LANG_FLAG_5 (T))
906 /* Set IS_AGGR_TYPE for T to VAL. T must be a class, struct, or
908 #define SET_IS_AGGR_TYPE(T, VAL) \
909 (TYPE_LANG_FLAG_5 (T) = (VAL))
911 /* Nonzero if T is a class type. Zero for template type parameters,
912 typename types, and so forth. */
913 #define CLASS_TYPE_P(T) \
914 (IS_AGGR_TYPE_CODE (TREE_CODE (T)) && IS_AGGR_TYPE (T))
916 #define IS_AGGR_TYPE_CODE(T) ((T) == RECORD_TYPE || (T) == UNION_TYPE)
917 #define TAGGED_TYPE_P(T) \
918 (CLASS_TYPE_P (T) || TREE_CODE (T) == ENUMERAL_TYPE)
919 #define IS_OVERLOAD_TYPE(T) TAGGED_TYPE_P (T)
921 /* True if this a "Java" type, defined in 'extern "Java"'. */
922 #define TYPE_FOR_JAVA(NODE) TYPE_LANG_FLAG_3 (NODE)
924 /* True if this type is dependent. This predicate is only valid if
925 TYPE_DEPENDENT_P_VALID is true. */
926 #define TYPE_DEPENDENT_P(NODE) TYPE_LANG_FLAG_0 (NODE)
928 /* True if dependent_type_p has been called for this type, with the
929 result that TYPE_DEPENDENT_P is valid. */
930 #define TYPE_DEPENDENT_P_VALID(NODE) TYPE_LANG_FLAG_6(NODE)
932 /* Nonzero if this type is const-qualified. */
933 #define CP_TYPE_CONST_P(NODE) \
934 ((cp_type_quals (NODE) & TYPE_QUAL_CONST) != 0)
936 /* Nonzero if this type is volatile-qualified. */
937 #define CP_TYPE_VOLATILE_P(NODE) \
938 ((cp_type_quals (NODE) & TYPE_QUAL_VOLATILE) != 0)
940 /* Nonzero if this type is restrict-qualified. */
941 #define CP_TYPE_RESTRICT_P(NODE) \
942 ((cp_type_quals (NODE) & TYPE_QUAL_RESTRICT) != 0)
944 /* Nonzero if this type is const-qualified, but not
945 volatile-qualified. Other qualifiers are ignored. This macro is
946 used to test whether or not it is OK to bind an rvalue to a
948 #define CP_TYPE_CONST_NON_VOLATILE_P(NODE) \
949 ((cp_type_quals (NODE) & (TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE)) \
952 #define FUNCTION_ARG_CHAIN(NODE) \
953 TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (NODE)))
955 /* Given a FUNCTION_DECL, returns the first TREE_LIST out of TYPE_ARG_TYPES
956 which refers to a user-written parameter. */
957 #define FUNCTION_FIRST_USER_PARMTYPE(NODE) \
958 skip_artificial_parms_for ((NODE), TYPE_ARG_TYPES (TREE_TYPE (NODE)))
960 /* Similarly, but for DECL_ARGUMENTS. */
961 #define FUNCTION_FIRST_USER_PARM(NODE) \
962 skip_artificial_parms_for ((NODE), DECL_ARGUMENTS (NODE))
964 #define PROMOTES_TO_AGGR_TYPE(NODE, CODE) \
965 (((CODE) == TREE_CODE (NODE) \
966 && IS_AGGR_TYPE (TREE_TYPE (NODE))) \
967 || IS_AGGR_TYPE (NODE))
969 /* Nonzero iff TYPE is derived from PARENT. Ignores accessibility and
971 #define DERIVED_FROM_P(PARENT, TYPE) \
972 (lookup_base ((TYPE), (PARENT), ba_any, NULL) != NULL_TREE)
973 /* Nonzero iff TYPE is uniquely derived from PARENT. Ignores
975 #define UNIQUELY_DERIVED_FROM_P(PARENT, TYPE) \
976 (lookup_base ((TYPE), (PARENT), ba_ignore | ba_quiet, NULL) != NULL_TREE)
977 /* Nonzero iff TYPE is accessible in the current scope and uniquely
978 derived from PARENT. */
979 #define ACCESSIBLY_UNIQUELY_DERIVED_P(PARENT, TYPE) \
980 (lookup_base ((TYPE), (PARENT), ba_check | ba_quiet, NULL) != NULL_TREE)
981 /* Nonzero iff TYPE is publicly & uniquely derived from PARENT. */
982 #define PUBLICLY_UNIQUELY_DERIVED_P(PARENT, TYPE) \
983 (lookup_base ((TYPE), (PARENT), ba_not_special | ba_quiet, NULL) \
986 /* This is a few header flags for 'struct lang_type'. Actually,
987 all but the first are used only for lang_type_class; they
988 are put in this structure to save space. */
989 struct lang_type_header GTY(())
991 BOOL_BITFIELD is_lang_type_class : 1;
993 BOOL_BITFIELD has_type_conversion : 1;
994 BOOL_BITFIELD has_init_ref : 1;
995 BOOL_BITFIELD has_default_ctor : 1;
996 BOOL_BITFIELD uses_multiple_inheritance : 1;
997 BOOL_BITFIELD const_needs_init : 1;
998 BOOL_BITFIELD ref_needs_init : 1;
999 BOOL_BITFIELD has_const_assign_ref : 1;
1002 /* This structure provides additional information above and beyond
1003 what is provide in the ordinary tree_type. In the past, we used it
1004 for the types of class types, template parameters types, typename
1005 types, and so forth. However, there can be many (tens to hundreds
1006 of thousands) of template parameter types in a compilation, and
1007 there's no need for this additional information in that case.
1008 Therefore, we now use this data structure only for class types.
1010 In the past, it was thought that there would be relatively few
1011 class types. However, in the presence of heavy use of templates,
1012 many (i.e., thousands) of classes can easily be generated.
1013 Therefore, we should endeavor to keep the size of this structure to
1015 struct lang_type_class GTY(())
1017 struct lang_type_header h;
1019 unsigned char align;
1021 unsigned has_mutable : 1;
1022 unsigned com_interface : 1;
1023 unsigned non_pod_class : 1;
1024 unsigned nearly_empty_p : 1;
1025 unsigned user_align : 1;
1026 unsigned has_assign_ref : 1;
1027 unsigned has_new : 1;
1028 unsigned has_array_new : 1;
1030 unsigned gets_delete : 2;
1031 unsigned interface_only : 1;
1032 unsigned interface_unknown : 1;
1033 unsigned contains_empty_class_p : 1;
1034 unsigned anon_aggr : 1;
1035 unsigned non_zero_init : 1;
1036 unsigned empty_p : 1;
1039 unsigned vec_new_uses_cookie : 1;
1040 unsigned declared_class : 1;
1042 unsigned being_defined : 1;
1043 unsigned redefined : 1;
1044 unsigned debug_requested : 1;
1045 unsigned use_template : 2;
1046 unsigned fields_readonly : 1;
1047 unsigned ptrmemfunc_flag : 1;
1048 unsigned was_anonymous : 1;
1050 unsigned has_real_assign_ref : 1;
1051 unsigned has_const_init_ref : 1;
1052 unsigned has_complex_init_ref : 1;
1053 unsigned has_complex_assign_ref : 1;
1054 unsigned has_abstract_assign_ref : 1;
1055 unsigned non_aggregate : 1;
1056 unsigned java_interface : 1;
1058 /* When adding a flag here, consider whether or not it ought to
1059 apply to a template instance if it applies to the template. If
1060 so, make sure to copy it in instantiate_class_template! */
1062 /* There are some bits left to fill out a 32-bit word. Keep track
1063 of this by updating the size of this bitfield whenever you add or
1073 binding_table nested_udts;
1076 tree friend_classes;
1077 tree GTY ((reorder ("resort_type_method_vec"))) methods;
1081 tree befriending_classes;
1084 struct lang_type_ptrmem GTY(())
1086 struct lang_type_header h;
1090 struct lang_type GTY(())
1094 struct lang_type_header GTY((tag ("2"))) h;
1095 struct lang_type_class GTY((tag ("1"))) c;
1096 struct lang_type_ptrmem GTY((tag ("0"))) ptrmem;
1097 } GTY((desc ("%h.h.is_lang_type_class"))) u;
1100 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1102 #define LANG_TYPE_CLASS_CHECK(NODE) __extension__ \
1103 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1104 if (! lt->u.h.is_lang_type_class) \
1105 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1108 #define LANG_TYPE_PTRMEM_CHECK(NODE) __extension__ \
1109 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1110 if (lt->u.h.is_lang_type_class) \
1111 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1116 #define LANG_TYPE_CLASS_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.c)
1117 #define LANG_TYPE_PTRMEM_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.ptrmem)
1119 #endif /* ENABLE_TREE_CHECKING */
1121 /* Indicates whether or not (and how) a template was expanded for this class.
1122 0=no information yet/non-template class
1123 1=implicit template instantiation
1124 2=explicit template specialization
1125 3=explicit template instantiation */
1126 #define CLASSTYPE_USE_TEMPLATE(NODE) \
1127 (LANG_TYPE_CLASS_CHECK (NODE)->use_template)
1129 /* Fields used for storing information before the class is defined.
1130 After the class is defined, these fields hold other information. */
1132 /* List of friends which were defined inline in this class definition. */
1133 #define CLASSTYPE_INLINE_FRIENDS(NODE) CLASSTYPE_PURE_VIRTUALS (NODE)
1135 /* Nonzero for _CLASSTYPE means that operator delete is defined. */
1136 #define TYPE_GETS_DELETE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->gets_delete)
1137 #define TYPE_GETS_REG_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 1)
1139 /* Nonzero if `new NODE[x]' should cause the allocation of extra
1140 storage to indicate how many array elements are in use. */
1141 #define TYPE_VEC_NEW_USES_COOKIE(NODE) \
1142 (CLASS_TYPE_P (NODE) \
1143 && LANG_TYPE_CLASS_CHECK (NODE)->vec_new_uses_cookie)
1145 /* Nonzero means that this _CLASSTYPE node defines ways of converting
1146 itself to other types. */
1147 #define TYPE_HAS_CONVERSION(NODE) \
1148 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_type_conversion)
1150 /* Nonzero means that this _CLASSTYPE node overloads operator=(X&). */
1151 #define TYPE_HAS_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_assign_ref)
1152 #define TYPE_HAS_CONST_ASSIGN_REF(NODE) \
1153 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_const_assign_ref)
1155 /* Nonzero means that this _CLASSTYPE node has an X(X&) constructor. */
1156 #define TYPE_HAS_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->h.has_init_ref)
1157 #define TYPE_HAS_CONST_INIT_REF(NODE) \
1158 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_init_ref)
1160 /* Nonzero if this class defines an overloaded operator new. (An
1161 operator new [] doesn't count.) */
1162 #define TYPE_HAS_NEW_OPERATOR(NODE) \
1163 (LANG_TYPE_CLASS_CHECK (NODE)->has_new)
1165 /* Nonzero if this class defines an overloaded operator new[]. */
1166 #define TYPE_HAS_ARRAY_NEW_OPERATOR(NODE) \
1167 (LANG_TYPE_CLASS_CHECK (NODE)->has_array_new)
1169 /* Nonzero means that this type is being defined. I.e., the left brace
1170 starting the definition of this type has been seen. */
1171 #define TYPE_BEING_DEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->being_defined)
1172 /* Nonzero means that this type has been redefined. In this case, if
1173 convenient, don't reprocess any methods that appear in its redefinition. */
1174 #define TYPE_REDEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->redefined)
1176 /* Nonzero means that this _CLASSTYPE (or one of its ancestors) uses
1177 multiple inheritance. If this is 0 for the root of a type
1178 hierarchy, then we can use more efficient search techniques. */
1179 #define TYPE_USES_MULTIPLE_INHERITANCE(NODE) \
1180 (LANG_TYPE_CLASS_CHECK (NODE)->h.uses_multiple_inheritance)
1182 /* Nonzero means that this _CLASSTYPE (or one of its ancestors) uses
1183 virtual base classes. If this is 0 for the root of a type
1184 hierarchy, then we can use more efficient search techniques. */
1185 #define TYPE_USES_VIRTUAL_BASECLASSES(NODE) (TREE_LANG_FLAG_3 (NODE))
1187 /* The member function with which the vtable will be emitted:
1188 the first noninline non-pure-virtual member function. NULL_TREE
1189 if there is no key function or if this is a class template */
1190 #define CLASSTYPE_KEY_METHOD(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->key_method)
1192 /* Vector member functions defined in this class. Each element is
1193 either a FUNCTION_DECL, a TEMPLATE_DECL, or an OVERLOAD. All
1194 functions with the same name end up in the same slot. The first
1195 two elements are for constructors, and destructors, respectively.
1196 All template conversion operators to innermost template dependent
1197 types are overloaded on the next slot, if they exist. Note, the
1198 names for these functions will not all be the same. The
1199 non-template conversion operators & templated conversions to
1200 non-innermost template types are next, followed by ordinary member
1201 functions. There may be empty entries at the end of the vector.
1202 The conversion operators are unsorted. The ordinary member
1203 functions are sorted, once the class is complete. */
1204 #define CLASSTYPE_METHOD_VEC(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->methods)
1206 /* For class templates, this is a TREE_LIST of all member data,
1207 functions, types, and friends in the order of declaration.
1208 The TREE_PURPOSE of each TREE_LIST is NULL_TREE for a friend,
1209 and the RECORD_TYPE for the class template otherwise. */
1210 #define CLASSTYPE_DECL_LIST(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->decl_list)
1212 /* The slot in the CLASSTYPE_METHOD_VEC where constructors go. */
1213 #define CLASSTYPE_CONSTRUCTOR_SLOT 0
1215 /* The slot in the CLASSTYPE_METHOD_VEC where destructors go. */
1216 #define CLASSTYPE_DESTRUCTOR_SLOT 1
1218 /* The first slot in the CLASSTYPE_METHOD_VEC where conversion
1219 operators can appear. */
1220 #define CLASSTYPE_FIRST_CONVERSION_SLOT 2
1222 /* A FUNCTION_DECL or OVERLOAD for the constructors for NODE. These
1223 are the constructors that take an in-charge parameter. */
1224 #define CLASSTYPE_CONSTRUCTORS(NODE) \
1225 (TREE_VEC_ELT (CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_CONSTRUCTOR_SLOT))
1227 /* A FUNCTION_DECL for the destructor for NODE. These are the
1228 destructors that take an in-charge parameter. */
1229 #define CLASSTYPE_DESTRUCTORS(NODE) \
1230 (TREE_VEC_ELT (CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_DESTRUCTOR_SLOT))
1232 /* Mark bits for depth-first and breath-first searches. */
1234 /* Get the value of the Nth mark bit. */
1235 #define CLASSTYPE_MARKED_N(NODE, N) \
1236 (((CLASS_TYPE_P (NODE) ? LANG_TYPE_CLASS_CHECK (NODE)->marks \
1237 : ((unsigned) TYPE_ALIAS_SET (NODE))) & (1 << (N))) != 0)
1239 /* Set the Nth mark bit. */
1240 #define SET_CLASSTYPE_MARKED_N(NODE, N) \
1241 (CLASS_TYPE_P (NODE) \
1242 ? (void) (LANG_TYPE_CLASS_CHECK (NODE)->marks |= (1 << (N))) \
1243 : (void) (TYPE_ALIAS_SET (NODE) |= (1 << (N))))
1245 /* Clear the Nth mark bit. */
1246 #define CLEAR_CLASSTYPE_MARKED_N(NODE, N) \
1247 (CLASS_TYPE_P (NODE) \
1248 ? (void) (LANG_TYPE_CLASS_CHECK (NODE)->marks &= ~(1 << (N))) \
1249 : (void) (TYPE_ALIAS_SET (NODE) &= ~(1 << (N))))
1251 /* Get the value of the mark bits. */
1252 #define CLASSTYPE_MARKED(NODE) CLASSTYPE_MARKED_N (NODE, 0)
1253 #define CLASSTYPE_MARKED2(NODE) CLASSTYPE_MARKED_N (NODE, 1)
1254 #define CLASSTYPE_MARKED3(NODE) CLASSTYPE_MARKED_N (NODE, 2)
1255 #define CLASSTYPE_MARKED4(NODE) CLASSTYPE_MARKED_N (NODE, 3)
1256 #define CLASSTYPE_MARKED5(NODE) CLASSTYPE_MARKED_N (NODE, 4)
1257 #define CLASSTYPE_MARKED6(NODE) CLASSTYPE_MARKED_N (NODE, 5)
1259 /* Macros to modify the above flags */
1260 #define SET_CLASSTYPE_MARKED(NODE) SET_CLASSTYPE_MARKED_N (NODE, 0)
1261 #define CLEAR_CLASSTYPE_MARKED(NODE) CLEAR_CLASSTYPE_MARKED_N (NODE, 0)
1262 #define SET_CLASSTYPE_MARKED2(NODE) SET_CLASSTYPE_MARKED_N (NODE, 1)
1263 #define CLEAR_CLASSTYPE_MARKED2(NODE) CLEAR_CLASSTYPE_MARKED_N (NODE, 1)
1264 #define SET_CLASSTYPE_MARKED3(NODE) SET_CLASSTYPE_MARKED_N (NODE, 2)
1265 #define CLEAR_CLASSTYPE_MARKED3(NODE) CLEAR_CLASSTYPE_MARKED_N (NODE, 2)
1266 #define SET_CLASSTYPE_MARKED4(NODE) SET_CLASSTYPE_MARKED_N (NODE, 3)
1267 #define CLEAR_CLASSTYPE_MARKED4(NODE) CLEAR_CLASSTYPE_MARKED_N (NODE, 3)
1268 #define SET_CLASSTYPE_MARKED5(NODE) SET_CLASSTYPE_MARKED_N (NODE, 4)
1269 #define CLEAR_CLASSTYPE_MARKED5(NODE) CLEAR_CLASSTYPE_MARKED_N (NODE, 4)
1270 #define SET_CLASSTYPE_MARKED6(NODE) SET_CLASSTYPE_MARKED_N (NODE, 5)
1271 #define CLEAR_CLASSTYPE_MARKED6(NODE) CLEAR_CLASSTYPE_MARKED_N (NODE, 5)
1273 /* A dictionary of the nested user-defined-types (class-types, or enums)
1274 found within this class. This table includes nested member class
1276 #define CLASSTYPE_NESTED_UTDS(NODE) \
1277 (LANG_TYPE_CLASS_CHECK (NODE)->nested_udts)
1279 /* Nonzero if NODE has a primary base class, i.e., a base class with
1280 which it shares the virtual function table pointer. */
1281 #define CLASSTYPE_HAS_PRIMARY_BASE_P(NODE) \
1282 (CLASSTYPE_PRIMARY_BINFO (NODE) != NULL_TREE)
1284 /* If non-NULL, this is the binfo for the primary base class, i.e.,
1285 the base class which contains the virtual function table pointer
1287 #define CLASSTYPE_PRIMARY_BINFO(NODE) \
1288 (LANG_TYPE_CLASS_CHECK (NODE)->primary_base)
1290 /* A chain of BINFOs for the direct and indirect virtual base classes
1291 that this type uses in a post-order depth-first left-to-right
1292 order. (In other words, these bases appear in the order that they
1293 should be initialized.) */
1294 #define CLASSTYPE_VBASECLASSES(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->vbases)
1296 /* Number of direct baseclasses of NODE. */
1297 #define CLASSTYPE_N_BASECLASSES(NODE) \
1298 (BINFO_N_BASETYPES (TYPE_BINFO (NODE)))
1300 /* The type corresponding to NODE when NODE is used as a base class,
1301 i.e., NODE without virtual base classes. */
1303 #define CLASSTYPE_AS_BASE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->as_base)
1305 /* True iff NODE is the CLASSTYPE_AS_BASE version of some type. */
1307 #define IS_FAKE_BASE_TYPE(NODE) \
1308 (TREE_CODE (NODE) == RECORD_TYPE \
1309 && TYPE_CONTEXT (NODE) && CLASS_TYPE_P (TYPE_CONTEXT (NODE)) \
1310 && CLASSTYPE_AS_BASE (TYPE_CONTEXT (NODE)) == (NODE))
1312 /* These are the size and alignment of the type without its virtual
1313 base classes, for when we use this type as a base itself. */
1314 #define CLASSTYPE_SIZE(NODE) TYPE_SIZE (CLASSTYPE_AS_BASE (NODE))
1315 #define CLASSTYPE_SIZE_UNIT(NODE) TYPE_SIZE_UNIT (CLASSTYPE_AS_BASE (NODE))
1316 #define CLASSTYPE_ALIGN(NODE) TYPE_ALIGN (CLASSTYPE_AS_BASE (NODE))
1317 #define CLASSTYPE_USER_ALIGN(NODE) TYPE_USER_ALIGN (CLASSTYPE_AS_BASE (NODE))
1319 /* The alignment of NODE, without its virtual bases, in bytes. */
1320 #define CLASSTYPE_ALIGN_UNIT(NODE) \
1321 (CLASSTYPE_ALIGN (NODE) / BITS_PER_UNIT)
1323 /* True if this a Java interface type, declared with
1324 '__attribute__ ((java_interface))'. */
1325 #define TYPE_JAVA_INTERFACE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->java_interface)
1327 /* A cons list of virtual functions which cannot be inherited by
1328 derived classes. When deriving from this type, the derived
1329 class must provide its own definition for each of these functions. */
1330 #define CLASSTYPE_PURE_VIRTUALS(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->pure_virtuals)
1332 /* Nonzero means that this type has an X() constructor. */
1333 #define TYPE_HAS_DEFAULT_CONSTRUCTOR(NODE) \
1334 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_default_ctor)
1336 /* Nonzero means that this type contains a mutable member. */
1337 #define CLASSTYPE_HAS_MUTABLE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_mutable)
1338 #define TYPE_HAS_MUTABLE_P(NODE) (cp_has_mutable_p (NODE))
1340 /* Nonzero means that this class type is a non-POD class. */
1341 #define CLASSTYPE_NON_POD_P(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->non_pod_class)
1343 /* Nonzero means that this class contains pod types whose default
1344 initialization is not a zero initialization (namely, pointers to
1346 #define CLASSTYPE_NON_ZERO_INIT_P(NODE) \
1347 (LANG_TYPE_CLASS_CHECK (NODE)->non_zero_init)
1349 /* Nonzero if this class is "empty" in the sense of the C++ ABI. */
1350 #define CLASSTYPE_EMPTY_P(NODE) \
1351 (LANG_TYPE_CLASS_CHECK (NODE)->empty_p)
1353 /* Nonzero if this class is "nearly empty", i.e., contains only a
1354 virtual function table pointer. */
1355 #define CLASSTYPE_NEARLY_EMPTY_P(NODE) \
1356 (LANG_TYPE_CLASS_CHECK (NODE)->nearly_empty_p)
1358 /* Nonzero if this class contains an empty subobject. */
1359 #define CLASSTYPE_CONTAINS_EMPTY_CLASS_P(NODE) \
1360 (LANG_TYPE_CLASS_CHECK (NODE)->contains_empty_class_p)
1362 /* A list of class types of which this type is a friend. The
1363 TREE_VALUE is normally a TYPE, but will be a TEMPLATE_DECL in the
1364 case of a template friend. */
1365 #define CLASSTYPE_FRIEND_CLASSES(NODE) \
1366 (LANG_TYPE_CLASS_CHECK (NODE)->friend_classes)
1368 /* A list of the classes which grant friendship to this class. */
1369 #define CLASSTYPE_BEFRIENDING_CLASSES(NODE) \
1370 (LANG_TYPE_CLASS_CHECK (NODE)->befriending_classes)
1372 /* Say whether this node was declared as a "class" or a "struct". */
1373 #define CLASSTYPE_DECLARED_CLASS(NODE) \
1374 (LANG_TYPE_CLASS_CHECK (NODE)->declared_class)
1376 /* Nonzero if this class has const members
1377 which have no specified initialization. */
1378 #define CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE) \
1379 (TYPE_LANG_SPECIFIC (NODE) \
1380 ? LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init : 0)
1381 #define SET_CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE, VALUE) \
1382 (LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init = (VALUE))
1384 /* Nonzero if this class has ref members
1385 which have no specified initialization. */
1386 #define CLASSTYPE_REF_FIELDS_NEED_INIT(NODE) \
1387 (TYPE_LANG_SPECIFIC (NODE) \
1388 ? LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init : 0)
1389 #define SET_CLASSTYPE_REF_FIELDS_NEED_INIT(NODE, VALUE) \
1390 (LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init = (VALUE))
1392 /* Nonzero if this class is included from a header file which employs
1393 `#pragma interface', and it is not included in its implementation file. */
1394 #define CLASSTYPE_INTERFACE_ONLY(NODE) \
1395 (LANG_TYPE_CLASS_CHECK (NODE)->interface_only)
1397 /* True if we have already determined whether or not vtables, VTTs,
1398 typeinfo, and other similar per-class data should be emitted in
1399 this translation unit. This flag does not indicate whether or not
1400 these items should be emitted; it only indicates that we know one
1401 way or the other. */
1402 #define CLASSTYPE_INTERFACE_KNOWN(NODE) \
1403 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown == 0)
1404 /* The opposite of CLASSTYPE_INTERFACE_KNOWN. */
1405 #define CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1406 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown)
1408 #define SET_CLASSTYPE_INTERFACE_UNKNOWN_X(NODE,X) \
1409 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = !!(X))
1410 #define SET_CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1411 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 1)
1412 #define SET_CLASSTYPE_INTERFACE_KNOWN(NODE) \
1413 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 0)
1415 /* Nonzero if a _DECL node requires us to output debug info for this class. */
1416 #define CLASSTYPE_DEBUG_REQUESTED(NODE) \
1417 (LANG_TYPE_CLASS_CHECK (NODE)->debug_requested)
1419 /* Additional macros for inheritance information. */
1421 /* The BINFO_INHERITANCE_CHAIN is used opposite to the description in
1422 gcc/tree.h. In particular if D is non-virtually derived from B
1423 then the BINFO for B (in D) will have a BINFO_INHERITANCE_CHAIN
1424 pointing to D. If D is virtually derived, its
1425 BINFO_INHERITANCE_CHAIN will point to the most derived binfo. In
1426 tree.h, this pointer is described as pointing in other
1427 direction. The binfos of virtual bases are shared. */
1429 /* Nonzero means marked by DFS or BFS search. */
1430 #define BINFO_MARKED(NODE) TREE_LANG_FLAG_0 (NODE)
1432 /* Nonzero means that this class is on a path leading to a new vtable. */
1433 #define BINFO_VTABLE_PATH_MARKED(NODE) TREE_LANG_FLAG_3 (NODE)
1435 /* Nonzero means B (a BINFO) has its own vtable. Any copies will not
1436 have this flag set. */
1437 #define BINFO_NEW_VTABLE_MARKED(B) (TREE_LANG_FLAG_4 (B))
1439 /* Any subobject that needs a new vtable must have a vptr and must not
1440 be a non-virtual primary base (since it would then use the vtable from a
1441 derived class and never become non-primary.) */
1442 #define SET_BINFO_NEW_VTABLE_MARKED(B) \
1443 (BINFO_NEW_VTABLE_MARKED (B) = 1, \
1444 my_friendly_assert (!BINFO_PRIMARY_P (B) \
1445 || TREE_VIA_VIRTUAL (B), 20000517), \
1446 my_friendly_assert (CLASSTYPE_VFIELDS (BINFO_TYPE (B)) != NULL_TREE, \
1449 /* Nonzero means this class has done dfs_pushdecls. */
1450 #define BINFO_PUSHDECLS_MARKED(NODE) BINFO_VTABLE_PATH_MARKED (NODE)
1452 /* Nonzero if this BINFO is a primary base class. Note, this can be
1453 set for non-canonical virtual bases. For a virtual primary base
1454 you might also need to check whether it is canonical. */
1456 #define BINFO_PRIMARY_P(NODE) \
1457 (BINFO_PRIMARY_BASE_OF (NODE) != NULL_TREE)
1459 /* The index in the VTT where this subobject's sub-VTT can be found.
1460 NULL_TREE if there is no sub-VTT. */
1461 #define BINFO_SUBVTT_INDEX(NODE) TREE_VEC_ELT (NODE, BINFO_ELTS + 0)
1463 /* The index in the VTT where the vptr for this subobject can be
1464 found. NULL_TREE if there is no secondary vptr in the VTT. */
1465 #define BINFO_VPTR_INDEX(NODE) TREE_VEC_ELT (NODE, BINFO_ELTS + 1)
1467 /* The binfo of which NODE is a primary base. (This is different from
1468 BINFO_INHERITANCE_CHAIN for virtual base because a virtual base is
1469 sometimes a primary base for a class for which it is not an
1471 #define BINFO_PRIMARY_BASE_OF(NODE) TREE_VEC_ELT (NODE, BINFO_ELTS + 2)
1473 /* C++ binfos have 3 additional entries. */
1475 #define BINFO_LANG_ELTS (BINFO_ELTS + 3)
1477 /* Nonzero if this binfo is for a dependent base - one that should not
1479 #define BINFO_DEPENDENT_BASE_P(NODE) TREE_LANG_FLAG_1 (NODE)
1481 /* Nonzero if this binfo has lost its primary base binfo (because that
1482 is a nearly-empty virtual base that has been taken by some other
1483 base in the complete hierarchy. */
1484 #define BINFO_LOST_PRIMARY_P(NODE) TREE_LANG_FLAG_2 (NODE)
1486 /* Nonzero if this binfo is an indirect primary base, i.e. a virtual
1487 base that is a primary base of some of other class in the
1489 #define BINFO_INDIRECT_PRIMARY_P(NODE) TREE_USED (NODE)
1491 /* Used by various search routines. */
1492 #define IDENTIFIER_MARKED(NODE) TREE_LANG_FLAG_0 (NODE)
1494 /* A TREE_LIST of the vcall indices associated with the class NODE.
1495 The TREE_PURPOSE of each node is a FUNCTION_DECL for a virtual
1496 function. The TREE_VALUE is the index into the virtual table where
1497 the vcall offset for that function is stored, when NODE is a
1499 #define CLASSTYPE_VCALL_INDICES(NODE) \
1500 (LANG_TYPE_CLASS_CHECK (NODE)->vcall_indices)
1502 /* The various vtables for the class NODE. The primary vtable will be
1503 first, followed by the construction vtables and VTT, if any. */
1504 #define CLASSTYPE_VTABLES(NODE) \
1505 (LANG_TYPE_CLASS_CHECK (NODE)->vtables)
1507 /* The std::type_info variable representing this class, or NULL if no
1508 such variable has been created. This field is only set for the
1509 TYPE_MAIN_VARIANT of the class. */
1510 #define CLASSTYPE_TYPEINFO_VAR(NODE) \
1511 (LANG_TYPE_CLASS_CHECK (NODE)->typeinfo_var)
1513 /* Accessor macros for the vfield slots in structures. */
1515 /* List of virtual table fields that this type contains (both the primary
1516 and secondaries). The TREE_VALUE is the class type where the vtable
1517 field was introduced. For a vtable field inherited from the primary
1518 base, or introduced by this class, the TREE_PURPOSE is NULL. For
1519 other vtable fields (those from non-primary bases), the
1520 TREE_PURPOSE is the BINFO of the base through which the vtable was
1522 #define CLASSTYPE_VFIELDS(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->vfields)
1524 /* Get the BINFO that introduced this vtable into the hierarchy (will
1525 be NULL for those created at this level, or from a primary
1527 #define VF_BINFO_VALUE(NODE) TREE_PURPOSE (NODE)
1529 /* Get the TYPE that introduced this vtable into the hierarchy (always
1531 #define VF_BASETYPE_VALUE(NODE) TREE_VALUE (NODE)
1533 /* Accessor macros for the BINFO_VIRTUALS list. */
1535 /* The number of bytes by which to adjust the `this' pointer when
1536 calling this virtual function. Subtract this value from the this
1537 pointer. Always non-NULL, might be constant zero though. */
1538 #define BV_DELTA(NODE) (TREE_PURPOSE (NODE))
1540 /* If non-NULL, the vtable index at which to find the vcall offset
1541 when calling this virtual function. Add the value at that vtable
1542 index to the this pointer. */
1543 #define BV_VCALL_INDEX(NODE) (TREE_TYPE (NODE))
1545 /* The function to call. */
1546 #define BV_FN(NODE) (TREE_VALUE (NODE))
1549 /* Nonzero for TREE_LIST node means that this list of things
1550 is a list of parameters, as opposed to a list of expressions. */
1551 #define TREE_PARMLIST(NODE) (TREE_LANG_FLAG_2 (NODE))
1553 /* Nonzero for a parmlist means that this parmlist ended in ... */
1554 #define PARMLIST_ELLIPSIS_P(NODE) TREE_LANG_FLAG_0 (NODE)
1556 /* For FUNCTION_TYPE or METHOD_TYPE, a list of the exceptions that
1557 this type can raise. Each TREE_VALUE is a _TYPE. The TREE_VALUE
1558 will be NULL_TREE to indicate a throw specification of `()', or
1559 no exceptions allowed. */
1560 #define TYPE_RAISES_EXCEPTIONS(NODE) TYPE_BINFO (NODE)
1562 /* For FUNCTION_TYPE or METHOD_TYPE, return 1 iff it is declared `throw()'. */
1563 #define TYPE_NOTHROW_P(NODE) \
1564 (TYPE_RAISES_EXCEPTIONS (NODE) \
1565 && TREE_VALUE (TYPE_RAISES_EXCEPTIONS (NODE)) == NULL_TREE)
1567 /* The binding level associated with the namespace. */
1568 #define NAMESPACE_LEVEL(NODE) \
1569 (DECL_LANG_SPECIFIC (NODE)->decl_flags.u.level)
1572 /* If a DECL has DECL_LANG_SPECIFIC, it is either a lang_decl_flags or
1573 a lang_decl (which has lang_decl_flags as its initial prefix).
1574 This macro is nonzero for tree nodes whose DECL_LANG_SPECIFIC is
1575 the full lang_decl, and not just lang_decl_flags. */
1576 #define CAN_HAVE_FULL_LANG_DECL_P(NODE) \
1577 (!(TREE_CODE (NODE) == VAR_DECL \
1578 || TREE_CODE (NODE) == CONST_DECL \
1579 || TREE_CODE (NODE) == FIELD_DECL \
1580 || TREE_CODE (NODE) == USING_DECL))
1582 struct lang_decl_flags GTY(())
1584 ENUM_BITFIELD(languages) language : 8;
1586 unsigned operator_attr : 1;
1587 unsigned constructor_attr : 1;
1588 unsigned destructor_attr : 1;
1589 unsigned friend_attr : 1;
1590 unsigned static_function : 1;
1591 unsigned pure_virtual : 1;
1592 unsigned has_in_charge_parm_p : 1;
1593 unsigned has_vtt_parm_p : 1;
1595 unsigned deferred : 1;
1596 unsigned use_template : 2;
1597 unsigned nonconverting : 1;
1598 unsigned not_really_extern : 1;
1599 unsigned needs_final_overrider : 1;
1600 unsigned initialized_in_class : 1;
1601 unsigned assignment_operator_p : 1;
1603 unsigned global_ctor_p : 1;
1604 unsigned global_dtor_p : 1;
1605 unsigned anticipated_p : 1;
1606 unsigned template_conv_p : 1;
1609 unsigned can_be_full : 1;
1610 unsigned this_thunk_p : 1;
1613 /* In a FUNCTION_DECL for which DECL_THUNK_P does not hold,
1614 VAR_DECL, TYPE_DECL, or TEMPLATE_DECL, this is
1615 DECL_TEMPLATE_INFO. */
1616 tree GTY ((tag ("0"))) template_info;
1618 /* In a NAMESPACE_DECL, this is NAMESPACE_LEVEL. */
1619 struct cp_binding_level * GTY ((tag ("1"))) level;
1621 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
1623 tree GTY ((tag ("2"))) thunk_alias;
1624 } GTY ((desc ("%1.u1sel"))) u;
1626 union lang_decl_u2 {
1627 /* This is DECL_ACCESS. */
1628 tree GTY ((tag ("0"))) access;
1630 /* For VAR_DECL in function, this is DECL_DISCRIMINATOR. */
1631 int GTY ((tag ("1"))) discriminator;
1633 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
1634 THUNK_VIRTUAL_OFFSET. */
1635 tree GTY((tag ("2"))) virtual_offset;
1636 } GTY ((desc ("%1.u2sel"))) u2;
1639 /* sorted_fields is sorted based on a pointer, so we need to be able
1640 to resort it if pointers get rearranged. */
1642 struct lang_decl GTY(())
1644 struct lang_decl_flags decl_flags;
1648 struct full_lang_decl
1650 /* For a non-thunk function decl, this is a tree list of
1651 friendly classes. For a thunk function decl, it is the
1652 thunked to function decl. */
1653 tree befriending_classes;
1655 /* For a non-virtual FUNCTION_DECL, this is
1656 DECL_FRIEND_CONTEXT. For a virtual FUNCTION_DECL for which
1657 DECL_THIS_THUNK_P does not hold, this is DECL_THUNKS. Both
1658 this pointer and result pointer adjusting thunks are
1659 chained here. This pointer thunks to return pointer thunks
1660 will be chained on the return pointer thunk. */
1663 /* In a FUNCTION_DECL, this is DECL_CLONED_FUNCTION. */
1664 tree cloned_function;
1666 /* In a FUNCTION_DECL for which THUNK_P holds, this is
1667 THUNK_FIXED_OFFSET. */
1668 HOST_WIDE_INT fixed_offset;
1670 /* In an overloaded operator, this is the value of
1671 DECL_OVERLOADED_OPERATOR_P. */
1672 enum tree_code operator_code;
1675 unsigned pending_inline_p : 1;
1679 struct sorted_fields_type * GTY ((tag ("0"), reorder ("resort_sorted_fields")))
1681 struct cp_token_cache * GTY ((tag ("2"))) pending_inline_info;
1682 struct language_function * GTY ((tag ("1")))
1683 saved_language_function;
1684 } GTY ((desc ("%1.u3sel + %1.pending_inline_p"))) u;
1685 } GTY ((tag ("1"))) f;
1686 } GTY ((desc ("%1.decl_flags.can_be_full"))) u;
1689 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1691 #define LANG_DECL_U2_CHECK(NODE, TF) __extension__ \
1692 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
1693 if (lt->decl_flags.u2sel != TF) \
1694 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1695 <->decl_flags.u2; })
1699 #define LANG_DECL_U2_CHECK(NODE, TF) \
1700 (&DECL_LANG_SPECIFIC (NODE)->decl_flags.u2)
1702 #endif /* ENABLE_TREE_CHECKING */
1704 /* DECL_NEEDED_P holds of a declaration when we need to emit its
1705 definition. This is true when the back-end tells us that
1706 the symbol has been referenced in the generated code. If, however,
1707 we are not generating code, then it is also true when a symbol has
1708 just been used somewhere, even if it's not really needed. We need
1709 anything that isn't comdat, but we don't know for sure whether or
1710 not something is comdat until end-of-file. */
1711 #define DECL_NEEDED_P(DECL) \
1712 ((at_eof && TREE_PUBLIC (DECL) && !DECL_COMDAT (DECL)) \
1713 || (DECL_ASSEMBLER_NAME_SET_P (DECL) \
1714 && TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (DECL))) \
1715 || (((flag_syntax_only || flag_unit_at_a_time) && TREE_USED (DECL))))
1717 /* For a FUNCTION_DECL or a VAR_DECL, the language linkage for the
1718 declaration. Some entities (like a member function in a local
1719 class, or a local variable) do not have linkage at all, and this
1720 macro should not be used in those cases.
1722 Implementation note: A FUNCTION_DECL without DECL_LANG_SPECIFIC was
1723 created by language-independent code, and has C linkage. Most
1724 VAR_DECLs have C++ linkage, and do not have DECL_LANG_SPECIFIC, but
1725 we do create DECL_LANG_SPECIFIC for variables with non-C++ linkage. */
1726 #define DECL_LANGUAGE(NODE) \
1727 (DECL_LANG_SPECIFIC (NODE) \
1728 ? DECL_LANG_SPECIFIC (NODE)->decl_flags.language \
1729 : (TREE_CODE (NODE) == FUNCTION_DECL \
1730 ? lang_c : lang_cplusplus))
1732 /* Set the language linkage for NODE to LANGUAGE. */
1733 #define SET_DECL_LANGUAGE(NODE, LANGUAGE) \
1734 (DECL_LANG_SPECIFIC (NODE)->decl_flags.language = (LANGUAGE))
1736 /* For FUNCTION_DECLs: nonzero means that this function is a constructor. */
1737 #define DECL_CONSTRUCTOR_P(NODE) \
1738 (DECL_LANG_SPECIFIC (NODE)->decl_flags.constructor_attr)
1740 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a complete
1742 #define DECL_COMPLETE_CONSTRUCTOR_P(NODE) \
1743 (DECL_CONSTRUCTOR_P (NODE) \
1744 && DECL_NAME (NODE) == complete_ctor_identifier)
1746 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a base
1748 #define DECL_BASE_CONSTRUCTOR_P(NODE) \
1749 (DECL_CONSTRUCTOR_P (NODE) \
1750 && DECL_NAME (NODE) == base_ctor_identifier)
1752 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor, but not either the
1753 specialized in-charge constructor or the specialized not-in-charge
1755 #define DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P(NODE) \
1756 (DECL_CONSTRUCTOR_P (NODE) && !DECL_CLONED_FUNCTION_P (NODE))
1758 /* Nonzero if NODE (a FUNCTION_DECL) is a copy constructor. */
1759 #define DECL_COPY_CONSTRUCTOR_P(NODE) \
1760 (DECL_CONSTRUCTOR_P (NODE) && copy_fn_p (NODE) > 0)
1762 /* Nonzero if NODE is a destructor. */
1763 #define DECL_DESTRUCTOR_P(NODE) \
1764 (DECL_LANG_SPECIFIC (NODE)->decl_flags.destructor_attr)
1766 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor, but not the
1767 specialized in-charge constructor, in-charge deleting constructor,
1768 or the the base destructor. */
1769 #define DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P(NODE) \
1770 (DECL_DESTRUCTOR_P (NODE) && !DECL_CLONED_FUNCTION_P (NODE))
1772 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
1774 #define DECL_COMPLETE_DESTRUCTOR_P(NODE) \
1775 (DECL_DESTRUCTOR_P (NODE) \
1776 && DECL_NAME (NODE) == complete_dtor_identifier)
1778 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a base
1780 #define DECL_BASE_DESTRUCTOR_P(NODE) \
1781 (DECL_DESTRUCTOR_P (NODE) \
1782 && DECL_NAME (NODE) == base_dtor_identifier)
1784 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
1785 object that deletes the object after it has been destroyed. */
1786 #define DECL_DELETING_DESTRUCTOR_P(NODE) \
1787 (DECL_DESTRUCTOR_P (NODE) \
1788 && DECL_NAME (NODE) == deleting_dtor_identifier)
1790 /* Nonzero if NODE (a FUNCTION_DECL) is a cloned constructor or
1792 #define DECL_CLONED_FUNCTION_P(NODE) \
1793 ((TREE_CODE (NODE) == FUNCTION_DECL \
1794 || TREE_CODE (NODE) == TEMPLATE_DECL) \
1795 && DECL_LANG_SPECIFIC (NODE) \
1796 && DECL_CLONED_FUNCTION (NODE) != NULL_TREE)
1798 /* If DECL_CLONED_FUNCTION_P holds, this is the function that was
1800 #define DECL_CLONED_FUNCTION(NODE) \
1801 (DECL_LANG_SPECIFIC (NODE)->u.f.cloned_function)
1803 /* Nonzero if NODE has DECL_DISCRIMINATOR and not DECL_ACCESS. */
1804 #define DECL_DISCRIMINATOR_P(NODE) \
1805 (TREE_CODE (NODE) == VAR_DECL \
1806 && DECL_FUNCTION_SCOPE_P (NODE))
1808 /* Discriminator for name mangling. */
1809 #define DECL_DISCRIMINATOR(NODE) (LANG_DECL_U2_CHECK (NODE, 1)->discriminator)
1811 /* Nonzero if the VTT parm has been added to NODE. */
1812 #define DECL_HAS_VTT_PARM_P(NODE) \
1813 (DECL_LANG_SPECIFIC (NODE)->decl_flags.has_vtt_parm_p)
1815 /* Nonzero if NODE is a FUNCTION_DECL for which a VTT parameter is
1817 #define DECL_NEEDS_VTT_PARM_P(NODE) \
1818 (TYPE_USES_VIRTUAL_BASECLASSES (DECL_CONTEXT (NODE)) \
1819 && (DECL_BASE_CONSTRUCTOR_P (NODE) \
1820 || DECL_BASE_DESTRUCTOR_P (NODE)))
1822 /* Nonzero if NODE is a user-defined conversion operator. */
1823 #define DECL_CONV_FN_P(NODE) \
1824 (DECL_NAME (NODE) && IDENTIFIER_TYPENAME_P (DECL_NAME (NODE)))
1826 /* If FN is a conversion operator, the type to which it converts.
1827 Otherwise, NULL_TREE. */
1828 #define DECL_CONV_FN_TYPE(FN) \
1829 (DECL_CONV_FN_P (FN) ? TREE_TYPE (DECL_NAME (FN)) : NULL_TREE)
1831 /* Nonzero if NODE, which is a TEMPLATE_DECL, is a template
1832 conversion operator to a type dependent on the innermost template
1834 #define DECL_TEMPLATE_CONV_FN_P(NODE) \
1835 (DECL_LANG_SPECIFIC (NODE)->decl_flags.template_conv_p)
1837 /* Set the overloaded operator code for NODE to CODE. */
1838 #define SET_OVERLOADED_OPERATOR_CODE(NODE, CODE) \
1839 (DECL_LANG_SPECIFIC (NODE)->u.f.operator_code = (CODE))
1841 /* If NODE is an overloaded operator, then this returns the TREE_CODE
1842 associated with the overloaded operator.
1843 DECL_ASSIGNMENT_OPERATOR_P must also be checked to determine
1844 whether or not NODE is an assignment operator. If NODE is not an
1845 overloaded operator, ERROR_MARK is returned. Since the numerical
1846 value of ERROR_MARK is zero, this macro can be used as a predicate
1847 to test whether or not NODE is an overloaded operator. */
1848 #define DECL_OVERLOADED_OPERATOR_P(NODE) \
1849 (IDENTIFIER_OPNAME_P (DECL_NAME (NODE)) \
1850 ? DECL_LANG_SPECIFIC (NODE)->u.f.operator_code : ERROR_MARK)
1852 /* Nonzero if NODE is an assignment operator. */
1853 #define DECL_ASSIGNMENT_OPERATOR_P(NODE) \
1854 (DECL_LANG_SPECIFIC (NODE)->decl_flags.assignment_operator_p)
1856 /* For FUNCTION_DECLs: nonzero means that this function is a
1857 constructor or a destructor with an extra in-charge parameter to
1858 control whether or not virtual bases are constructed. */
1859 #define DECL_HAS_IN_CHARGE_PARM_P(NODE) \
1860 (DECL_LANG_SPECIFIC (NODE)->decl_flags.has_in_charge_parm_p)
1862 /* Nonzero if NODE is an overloaded `operator delete[]' function. */
1863 #define DECL_ARRAY_DELETE_OPERATOR_P(NODE) \
1864 (DECL_OVERLOADED_OPERATOR_P (NODE) == VEC_DELETE_EXPR)
1866 /* Nonzero for _DECL means that this decl appears in (or will appear
1867 in) as a member in a RECORD_TYPE or UNION_TYPE node. It is also for
1868 detecting circularity in case members are multiply defined. In the
1869 case of a VAR_DECL, it is also used to determine how program storage
1870 should be allocated. */
1871 #define DECL_IN_AGGR_P(NODE) (DECL_LANG_FLAG_3 (NODE))
1873 /* Nonzero for a VAR_DECL means that the variable's initialization has
1875 #define DECL_INITIALIZED_P(NODE) \
1876 (TREE_LANG_FLAG_1 (VAR_DECL_CHECK (NODE)))
1878 /* Nonzero for a VAR_DECL that was initialized with a
1879 constant-expression. */
1880 #define DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P(NODE) \
1881 (TREE_LANG_FLAG_2 (VAR_DECL_CHECK (NODE)))
1883 /* Nonzero if the DECL was initialized in the class definition itself,
1884 rather than outside the class. This is used for both static member
1885 VAR_DECLS, and FUNTION_DECLS that are defined in the class. */
1886 #define DECL_INITIALIZED_IN_CLASS_P(DECL) \
1887 (DECL_LANG_SPECIFIC (DECL)->decl_flags.initialized_in_class)
1889 /* Nonzero for FUNCTION_DECL means that this decl is just a
1890 friend declaration, and should not be added to the list of
1891 member functions for this class. */
1892 #define DECL_FRIEND_P(NODE) (DECL_LANG_SPECIFIC (NODE)->decl_flags.friend_attr)
1894 /* A TREE_LIST of the types which have befriended this FUNCTION_DECL. */
1895 #define DECL_BEFRIENDING_CLASSES(NODE) \
1896 (DECL_LANG_SPECIFIC (NODE)->u.f.befriending_classes)
1898 /* Nonzero for FUNCTION_DECL means that this decl is a static
1900 #define DECL_STATIC_FUNCTION_P(NODE) \
1901 (DECL_LANG_SPECIFIC (NODE)->decl_flags.static_function)
1903 /* Nonzero for FUNCTION_DECL means that this decl is a non-static
1905 #define DECL_NONSTATIC_MEMBER_FUNCTION_P(NODE) \
1906 (TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE)
1908 /* Nonzero for FUNCTION_DECL means that this decl is a member function
1909 (static or non-static). */
1910 #define DECL_FUNCTION_MEMBER_P(NODE) \
1911 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) || DECL_STATIC_FUNCTION_P (NODE))
1913 /* Nonzero for FUNCTION_DECL means that this member function
1914 has `this' as const X *const. */
1915 #define DECL_CONST_MEMFUNC_P(NODE) \
1916 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
1917 && CP_TYPE_CONST_P (TREE_TYPE (TREE_VALUE \
1918 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
1920 /* Nonzero for FUNCTION_DECL means that this member function
1921 has `this' as volatile X *const. */
1922 #define DECL_VOLATILE_MEMFUNC_P(NODE) \
1923 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
1924 && CP_TYPE_VOLATILE_P (TREE_TYPE (TREE_VALUE \
1925 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
1927 /* Nonzero for a DECL means that this member is a non-static member. */
1928 #define DECL_NONSTATIC_MEMBER_P(NODE) \
1929 ((TREE_CODE (NODE) == FUNCTION_DECL \
1930 && DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE)) \
1931 || TREE_CODE (NODE) == FIELD_DECL)
1933 /* Nonzero for _DECL means that this member object type
1935 #define DECL_MUTABLE_P(NODE) (DECL_LANG_FLAG_0 (NODE))
1937 /* Nonzero for _DECL means that this constructor is a non-converting
1939 #define DECL_NONCONVERTING_P(NODE) \
1940 (DECL_LANG_SPECIFIC (NODE)->decl_flags.nonconverting)
1942 /* Nonzero for FUNCTION_DECL means that this member function is a pure
1943 virtual function. */
1944 #define DECL_PURE_VIRTUAL_P(NODE) \
1945 (DECL_LANG_SPECIFIC (NODE)->decl_flags.pure_virtual)
1947 /* Nonzero for FUNCTION_DECL means that this member function
1948 must be overridden by derived classes. */
1949 #define DECL_NEEDS_FINAL_OVERRIDER_P(NODE) \
1950 (DECL_LANG_SPECIFIC (NODE)->decl_flags.needs_final_overrider)
1952 /* True (in a FUNCTION_DECL) if NODE is a virtual function that is an
1953 invalid overrider for a function from a base class. Once we have
1954 complained about an invalid overrider we avoid complaining about it
1956 #define DECL_INVALID_OVERRIDER_P(NODE) \
1957 (DECL_LANG_FLAG_4 (NODE))
1959 /* The thunks associated with NODE, a FUNCTION_DECL. */
1960 #define DECL_THUNKS(NODE) \
1961 (DECL_LANG_SPECIFIC (NODE)->u.f.context)
1963 /* Nonzero if NODE is a thunk, rather than an ordinary function. */
1964 #define DECL_THUNK_P(NODE) \
1965 (TREE_CODE (NODE) == FUNCTION_DECL \
1966 && DECL_LANG_FLAG_7 (NODE))
1968 /* Nonzero if NODE is a this pointer adjusting thunk. */
1969 #define DECL_THIS_THUNK_P(NODE) \
1970 (DECL_THUNK_P (NODE) && DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p)
1972 /* Nonzero if NODE is a result pointer adjusting thunk. */
1973 #define DECL_RESULT_THUNK_P(NODE) \
1974 (DECL_THUNK_P (NODE) && !DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p)
1976 /* Nonzero if NODE is a FUNCTION_DECL, but not a thunk. */
1977 #define DECL_NON_THUNK_FUNCTION_P(NODE) \
1978 (TREE_CODE (NODE) == FUNCTION_DECL && !DECL_THUNK_P (NODE))
1980 /* Nonzero if NODE is `extern "C"'. */
1981 #define DECL_EXTERN_C_P(NODE) \
1982 (DECL_LANGUAGE (NODE) == lang_c)
1984 /* Nonzero if NODE is an `extern "C"' function. */
1985 #define DECL_EXTERN_C_FUNCTION_P(NODE) \
1986 (DECL_NON_THUNK_FUNCTION_P (NODE) && DECL_EXTERN_C_P (NODE))
1988 /* Set DECL_THUNK_P for node. */
1989 #define SET_DECL_THUNK_P(NODE, THIS_ADJUSTING) \
1990 (DECL_LANG_FLAG_7 (NODE) = 1, \
1991 DECL_LANG_SPECIFIC (NODE)->u.f.u3sel = 1, \
1992 DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p = (THIS_ADJUSTING))
1994 /* Nonzero if this DECL is the __PRETTY_FUNCTION__ variable in a
1995 template function. */
1996 #define DECL_PRETTY_FUNCTION_P(NODE) \
1997 (TREE_LANG_FLAG_0 (VAR_DECL_CHECK (NODE)))
1999 /* The _TYPE context in which this _DECL appears. This field holds the
2000 class where a virtual function instance is actually defined. */
2001 #define DECL_CLASS_CONTEXT(NODE) \
2002 (DECL_CLASS_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : NULL_TREE)
2004 /* For a non-member friend function, the class (if any) in which this
2005 friend was defined. For example, given:
2007 struct S { friend void f (); };
2009 the DECL_FRIEND_CONTEXT for `f' will be `S'. */
2010 #define DECL_FRIEND_CONTEXT(NODE) \
2011 ((DECL_FRIEND_P (NODE) && !DECL_FUNCTION_MEMBER_P (NODE)) \
2012 ? DECL_LANG_SPECIFIC (NODE)->u.f.context \
2015 /* Set the DECL_FRIEND_CONTEXT for NODE to CONTEXT. */
2016 #define SET_DECL_FRIEND_CONTEXT(NODE, CONTEXT) \
2017 (DECL_LANG_SPECIFIC (NODE)->u.f.context = (CONTEXT))
2019 /* NULL_TREE in DECL_CONTEXT represents the global namespace. */
2020 #define CP_DECL_CONTEXT(NODE) \
2021 (DECL_CONTEXT (NODE) ? DECL_CONTEXT (NODE) : global_namespace)
2022 #define FROB_CONTEXT(NODE) ((NODE) == global_namespace ? NULL_TREE : (NODE))
2024 /* 1 iff NODE has namespace scope, including the global namespace. */
2025 #define DECL_NAMESPACE_SCOPE_P(NODE) \
2026 (!DECL_TEMPLATE_PARM_P (NODE) \
2027 && TREE_CODE (CP_DECL_CONTEXT (NODE)) == NAMESPACE_DECL)
2029 /* 1 iff NODE is a class member. */
2030 #define DECL_CLASS_SCOPE_P(NODE) \
2031 (DECL_CONTEXT (NODE) && TYPE_P (DECL_CONTEXT (NODE)))
2033 /* 1 iff NODE is function-local. */
2034 #define DECL_FUNCTION_SCOPE_P(NODE) \
2035 (DECL_CONTEXT (NODE) \
2036 && TREE_CODE (DECL_CONTEXT (NODE)) == FUNCTION_DECL)
2038 /* 1 iff VAR_DECL node NODE is virtual table or VTT. */
2039 #define DECL_VTABLE_OR_VTT_P(NODE) TREE_LANG_FLAG_5 (VAR_DECL_CHECK (NODE))
2041 /* 1 iff NODE is function-local, but for types. */
2042 #define LOCAL_CLASS_P(NODE) \
2043 (decl_function_context (TYPE_MAIN_DECL (NODE)) != NULL_TREE)
2045 /* For a NAMESPACE_DECL: the list of using namespace directives
2046 The PURPOSE is the used namespace, the value is the namespace
2047 that is the common ancestor. */
2048 #define DECL_NAMESPACE_USING(NODE) DECL_VINDEX (NAMESPACE_DECL_CHECK (NODE))
2050 /* In a NAMESPACE_DECL, the DECL_INITIAL is used to record all users
2051 of a namespace, to record the transitive closure of using namespace. */
2052 #define DECL_NAMESPACE_USERS(NODE) DECL_INITIAL (NAMESPACE_DECL_CHECK (NODE))
2054 /* In a NAMESPACE_DECL, the list of namespaces which have associated
2055 themselves with this one. */
2056 #define DECL_NAMESPACE_ASSOCIATIONS(NODE) \
2057 (NAMESPACE_DECL_CHECK (NODE)->decl.saved_tree)
2059 /* In a NAMESPACE_DECL, points to the original namespace if this is
2060 a namespace alias. */
2061 #define DECL_NAMESPACE_ALIAS(NODE) \
2062 DECL_ABSTRACT_ORIGIN (NAMESPACE_DECL_CHECK (NODE))
2063 #define ORIGINAL_NAMESPACE(NODE) \
2064 (DECL_NAMESPACE_ALIAS (NODE) ? DECL_NAMESPACE_ALIAS (NODE) : (NODE))
2066 /* Nonzero if NODE is the std namespace. */
2067 #define DECL_NAMESPACE_STD_P(NODE) \
2068 (TREE_CODE (NODE) == NAMESPACE_DECL \
2069 && CP_DECL_CONTEXT (NODE) == global_namespace \
2070 && DECL_NAME (NODE) == std_identifier)
2072 /* In a non-local VAR_DECL with static storage duration, this is the
2073 initialization priority. If this value is zero, the NODE will be
2074 initialized at the DEFAULT_INIT_PRIORITY. */
2075 #define DECL_INIT_PRIORITY(NODE) (VAR_DECL_CHECK (NODE)->decl.u2.i)
2077 /* In a TREE_LIST concatenating using directives, indicate indirect
2079 #define TREE_INDIRECT_USING(NODE) (TREE_LIST_CHECK (NODE)->common.lang_flag_0)
2081 /* In a VAR_DECL for a variable declared in a for statement,
2082 this is the shadowed (local) variable. */
2083 #define DECL_SHADOWED_FOR_VAR(NODE) DECL_RESULT_FLD(VAR_DECL_CHECK (NODE))
2085 /* In a FUNCTION_DECL, this is nonzero if this function was defined in
2086 the class definition. We have saved away the text of the function,
2087 but have not yet processed it. */
2088 #define DECL_PENDING_INLINE_P(NODE) \
2089 (DECL_LANG_SPECIFIC (NODE)->u.f.pending_inline_p)
2091 /* If DECL_PENDING_INLINE_P holds, this is the saved text of the
2093 #define DECL_PENDING_INLINE_INFO(NODE) \
2094 (DECL_LANG_SPECIFIC (NODE)->u.f.u.pending_inline_info)
2096 /* For a TYPE_DECL: if this structure has many fields, we'll sort them
2097 and put them into a TREE_VEC. */
2098 #define DECL_SORTED_FIELDS(NODE) \
2099 (DECL_LANG_SPECIFIC (TYPE_DECL_CHECK (NODE))->u.f.u.sorted_fields)
2101 /* True if on the deferred_fns (see decl2.c) list. */
2102 #define DECL_DEFERRED_FN(DECL) \
2103 (DECL_LANG_SPECIFIC (DECL)->decl_flags.deferred)
2105 /* For a VAR_DECL, FUNCTION_DECL, TYPE_DECL or TEMPLATE_DECL:
2106 template-specific information. */
2107 #define DECL_TEMPLATE_INFO(NODE) \
2108 (DECL_LANG_SPECIFIC (VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK (NODE)) \
2109 ->decl_flags.u.template_info)
2111 /* For a VAR_DECL, indicates that the variable has been processed.
2112 This flag is set and unset throughout the code; it is always
2113 used for a temporary purpose. */
2114 #define DECL_VAR_MARKED_P(NODE) \
2115 (DECL_LANG_FLAG_4 (VAR_DECL_CHECK (NODE)))
2117 /* Template information for a RECORD_TYPE or UNION_TYPE. */
2118 #define CLASSTYPE_TEMPLATE_INFO(NODE) \
2119 (LANG_TYPE_CLASS_CHECK (RECORD_OR_UNION_TYPE_CHECK (NODE))->template_info)
2121 /* Template information for an ENUMERAL_TYPE. Although an enumeration may
2122 not be a primary template, it may be declared within the scope of a
2123 primary template and the enumeration constants may depend on
2124 non-type template parameters. */
2125 #define ENUM_TEMPLATE_INFO(NODE) (TYPE_BINFO (ENUMERAL_TYPE_CHECK (NODE)))
2127 /* Template information for a template template parameter. */
2128 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO(NODE) \
2129 (LANG_TYPE_CLASS_CHECK (BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK (NODE)) \
2132 /* Template information for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2133 #define TYPE_TEMPLATE_INFO(NODE) \
2134 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2135 ? ENUM_TEMPLATE_INFO (NODE) : \
2136 (TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM \
2137 ? TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO (NODE) : \
2138 (TYPE_LANG_SPECIFIC (NODE) \
2139 ? CLASSTYPE_TEMPLATE_INFO (NODE) \
2142 /* Set the template information for an ENUMERAL_, RECORD_, or
2143 UNION_TYPE to VAL. */
2144 #define SET_TYPE_TEMPLATE_INFO(NODE, VAL) \
2145 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2146 ? (ENUM_TEMPLATE_INFO (NODE) = (VAL)) \
2147 : (CLASSTYPE_TEMPLATE_INFO (NODE) = (VAL)))
2149 #define TI_TEMPLATE(NODE) (TREE_PURPOSE (NODE))
2150 #define TI_ARGS(NODE) (TREE_VALUE (NODE))
2151 #define TI_PENDING_TEMPLATE_FLAG(NODE) TREE_LANG_FLAG_1 (NODE)
2153 /* We use TREE_VECs to hold template arguments. If there is only one
2154 level of template arguments, then the TREE_VEC contains the
2155 arguments directly. If there is more than one level of template
2156 arguments, then each entry in the TREE_VEC is itself a TREE_VEC,
2157 containing the template arguments for a single level. The first
2158 entry in the outer TREE_VEC is the outermost level of template
2159 parameters; the last is the innermost.
2161 It is incorrect to ever form a template argument vector containing
2162 only one level of arguments, but which is a TREE_VEC containing as
2163 its only entry the TREE_VEC for that level. */
2165 /* Nonzero if the template arguments is actually a vector of vectors,
2166 rather than just a vector. */
2167 #define TMPL_ARGS_HAVE_MULTIPLE_LEVELS(NODE) \
2168 (NODE && TREE_VEC_ELT (NODE, 0) \
2169 && TREE_CODE (TREE_VEC_ELT (NODE, 0)) == TREE_VEC)
2171 /* The depth of a template argument vector. When called directly by
2172 the parser, we use a TREE_LIST rather than a TREE_VEC to represent
2173 template arguments. In fact, we may even see NULL_TREE if there
2174 are no template arguments. In both of those cases, there is only
2175 one level of template arguments. */
2176 #define TMPL_ARGS_DEPTH(NODE) \
2177 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (NODE) ? TREE_VEC_LENGTH (NODE) : 1)
2179 /* The LEVELth level of the template ARGS. The outermost level of
2180 args is level 1, not level 0. */
2181 #define TMPL_ARGS_LEVEL(ARGS, LEVEL) \
2182 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (ARGS) \
2183 ? TREE_VEC_ELT (ARGS, (LEVEL) - 1) : (ARGS))
2185 /* Set the LEVELth level of the template ARGS to VAL. This macro does
2186 not work with single-level argument vectors. */
2187 #define SET_TMPL_ARGS_LEVEL(ARGS, LEVEL, VAL) \
2188 (TREE_VEC_ELT (ARGS, (LEVEL) - 1) = (VAL))
2190 /* Accesses the IDXth parameter in the LEVELth level of the ARGS. */
2191 #define TMPL_ARG(ARGS, LEVEL, IDX) \
2192 (TREE_VEC_ELT (TMPL_ARGS_LEVEL (ARGS, LEVEL), IDX))
2194 /* Set the IDXth element in the LEVELth level of ARGS to VAL. This
2195 macro does not work with single-level argument vectors. */
2196 #define SET_TMPL_ARG(ARGS, LEVEL, IDX, VAL) \
2197 (TREE_VEC_ELT (TREE_VEC_ELT ((ARGS), (LEVEL) - 1), (IDX)) = (VAL))
2199 /* Given a single level of template arguments in NODE, return the
2200 number of arguments. */
2201 #define NUM_TMPL_ARGS(NODE) \
2202 (TREE_VEC_LENGTH (NODE))
2204 /* Returns the innermost level of template arguments in ARGS. */
2205 #define INNERMOST_TEMPLATE_ARGS(NODE) \
2206 (get_innermost_template_args ((NODE), 1))
2208 /* The number of levels of template parameters given by NODE. */
2209 #define TMPL_PARMS_DEPTH(NODE) \
2210 ((HOST_WIDE_INT) TREE_INT_CST_LOW (TREE_PURPOSE (NODE)))
2212 /* The TEMPLATE_DECL instantiated or specialized by NODE. This
2213 TEMPLATE_DECL will be the immediate parent, not the most general
2214 template. For example, in:
2216 template <class T> struct S { template <class U> void f(U); }
2218 the FUNCTION_DECL for S<int>::f<double> will have, as its
2219 DECL_TI_TEMPLATE, `template <class U> S<int>::f<U>'.
2221 As a special case, for a member friend template of a template
2222 class, this value will not be a TEMPLATE_DECL, but rather an
2223 IDENTIFIER_NODE or OVERLOAD indicating the name of the template and
2224 any explicit template arguments provided. For example, in:
2226 template <class T> struct S { friend void f<int>(int, double); }
2228 the DECL_TI_TEMPLATE will be an IDENTIFIER_NODE for `f' and the
2229 DECL_TI_ARGS will be {int}. */
2230 #define DECL_TI_TEMPLATE(NODE) TI_TEMPLATE (DECL_TEMPLATE_INFO (NODE))
2232 /* The template arguments used to obtain this decl from the most
2233 general form of DECL_TI_TEMPLATE. For the example given for
2234 DECL_TI_TEMPLATE, the DECL_TI_ARGS will be {int, double}. These
2235 are always the full set of arguments required to instantiate this
2236 declaration from the most general template specialized here. */
2237 #define DECL_TI_ARGS(NODE) TI_ARGS (DECL_TEMPLATE_INFO (NODE))
2238 #define CLASSTYPE_TI_TEMPLATE(NODE) TI_TEMPLATE (CLASSTYPE_TEMPLATE_INFO (NODE))
2239 #define CLASSTYPE_TI_ARGS(NODE) TI_ARGS (CLASSTYPE_TEMPLATE_INFO (NODE))
2240 #define ENUM_TI_TEMPLATE(NODE) \
2241 TI_TEMPLATE (ENUM_TEMPLATE_INFO (NODE))
2242 #define ENUM_TI_ARGS(NODE) \
2243 TI_ARGS (ENUM_TEMPLATE_INFO (NODE))
2245 /* For a template instantiation TYPE, returns the TYPE corresponding
2246 to the primary template. Otherwise returns TYPE itself. */
2247 #define CLASSTYPE_PRIMARY_TEMPLATE_TYPE(TYPE) \
2248 ((CLASSTYPE_USE_TEMPLATE ((TYPE)) && !CLASSTYPE_TEMPLATE_SPECIALIZATION ((TYPE))) \
2249 ? TREE_TYPE (DECL_TEMPLATE_RESULT (DECL_PRIMARY_TEMPLATE \
2250 (CLASSTYPE_TI_TEMPLATE ((TYPE))))) \
2253 /* Like DECL_TI_TEMPLATE, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2254 #define TYPE_TI_TEMPLATE(NODE) \
2255 (TI_TEMPLATE (TYPE_TEMPLATE_INFO (NODE)))
2257 /* Like DECL_TI_ARGS, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2258 #define TYPE_TI_ARGS(NODE) \
2259 (TI_ARGS (TYPE_TEMPLATE_INFO (NODE)))
2261 #define INNERMOST_TEMPLATE_PARMS(NODE) TREE_VALUE (NODE)
2263 /* Nonzero if the NODE corresponds to the template parameters for a
2264 member template, whose inline definition is being processed after
2265 the class definition is complete. */
2266 #define TEMPLATE_PARMS_FOR_INLINE(NODE) TREE_LANG_FLAG_1 (NODE)
2268 /* In a FUNCTION_DECL, the saved language-specific per-function data. */
2269 #define DECL_SAVED_FUNCTION_DATA(NODE) \
2270 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (NODE)) \
2271 ->u.f.u.saved_language_function)
2273 #define NEW_EXPR_USE_GLOBAL(NODE) \
2274 TREE_LANG_FLAG_0 (NEW_EXPR_CHECK (NODE))
2275 #define DELETE_EXPR_USE_GLOBAL(NODE) \
2276 TREE_LANG_FLAG_0 (DELETE_EXPR_CHECK (NODE))
2277 #define DELETE_EXPR_USE_VEC(NODE) \
2278 TREE_LANG_FLAG_1 (DELETE_EXPR_CHECK (NODE))
2280 /* Indicates that this is a non-dependent COMPOUND_EXPR which will
2281 resolve to a function call. */
2282 #define COMPOUND_EXPR_OVERLOADED(NODE) \
2283 TREE_LANG_FLAG_0 (COMPOUND_EXPR_CHECK (NODE))
2285 /* In a CALL_EXPR appearing in a template, true if Koenig lookup
2286 should be performed at instantiation time. */
2287 #define KOENIG_LOOKUP_P(NODE) TREE_LANG_FLAG_0 (CALL_EXPR_CHECK (NODE))
2289 /* Nonzero if this AGGR_INIT_EXPR provides for initialization via a
2290 constructor call, rather than an ordinary function call. */
2291 #define AGGR_INIT_VIA_CTOR_P(NODE) \
2292 TREE_LANG_FLAG_0 (AGGR_INIT_EXPR_CHECK (NODE))
2294 /* The TYPE_MAIN_DECL for a class template type is a TYPE_DECL, not a
2295 TEMPLATE_DECL. This macro determines whether or not a given class
2296 type is really a template type, as opposed to an instantiation or
2297 specialization of one. */
2298 #define CLASSTYPE_IS_TEMPLATE(NODE) \
2299 (CLASSTYPE_TEMPLATE_INFO (NODE) \
2300 && !CLASSTYPE_USE_TEMPLATE (NODE) \
2301 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE)))
2303 /* The name used by the user to name the typename type. Typically,
2304 this is an IDENTIFIER_NODE, and the same as the DECL_NAME on the
2305 corresponding TYPE_DECL. However, this may also be a
2306 TEMPLATE_ID_EXPR if we had something like `typename X::Y<T>'. */
2307 #define TYPENAME_TYPE_FULLNAME(NODE) (TYPENAME_TYPE_CHECK (NODE))->type.values
2309 /* Nonzero in INTEGER_CST means that this int is negative by dint of
2310 using a twos-complement negated operand. */
2311 #define TREE_NEGATED_INT(NODE) TREE_LANG_FLAG_0 (INTEGER_CST_CHECK (NODE))
2313 /* Nonzero in any kind of _TYPE where conversions to base-classes may
2314 involve pointer arithmetic. If this is zero, then converting to
2315 a base-class never requires changing the value of the pointer. */
2316 #define TYPE_BASE_CONVS_MAY_REQUIRE_CODE_P(NODE) (TREE_LANG_FLAG_1 (NODE))
2320 A class that declares or inherits a virtual function is called a
2321 polymorphic class. */
2322 #define TYPE_POLYMORPHIC_P(NODE) (TREE_LANG_FLAG_2 (NODE))
2324 /* Nonzero if this class has a virtual function table pointer. */
2325 #define TYPE_CONTAINS_VPTR_P(NODE) \
2326 (TYPE_POLYMORPHIC_P (NODE) \
2327 || TYPE_USES_VIRTUAL_BASECLASSES (NODE))
2329 /* This flag is true of a local VAR_DECL if it was declared in a for
2330 statement, but we are no longer in the scope of the for. */
2331 #define DECL_DEAD_FOR_LOCAL(NODE) DECL_LANG_FLAG_7 (VAR_DECL_CHECK (NODE))
2333 /* This flag is set on a VAR_DECL that is a DECL_DEAD_FOR_LOCAL
2334 if we already emitted a warning about using it. */
2335 #define DECL_ERROR_REPORTED(NODE) DECL_LANG_FLAG_0 (VAR_DECL_CHECK (NODE))
2337 /* Nonzero if NODE is a FUNCTION_DECL (for a function with global
2338 scope) declared in a local scope. */
2339 #define DECL_LOCAL_FUNCTION_P(NODE) \
2340 DECL_LANG_FLAG_0 (FUNCTION_DECL_CHECK (NODE))
2342 /* Nonzero if NODE is a FUNCTION_DECL for a built-in function, and we have
2343 not yet seen a prototype for that function. */
2344 #define DECL_ANTICIPATED(NODE) \
2345 (DECL_LANG_SPECIFIC (DECL_CHECK (NODE))->decl_flags.anticipated_p)
2347 /* Record whether a typedef for type `int' was actually `signed int'. */
2348 #define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP)
2350 /* Returns nonzero if DECL has external linkage, as specified by the
2351 language standard. (This predicate may hold even when the
2352 corresponding entity is not actually given external linkage in the
2353 object file; see decl_linkage for details.) */
2354 #define DECL_EXTERNAL_LINKAGE_P(DECL) \
2355 (decl_linkage (DECL) == lk_external)
2357 #define INTEGRAL_CODE_P(CODE) \
2358 ((CODE) == INTEGER_TYPE || (CODE) == ENUMERAL_TYPE || (CODE) == BOOLEAN_TYPE)
2360 /* [basic.fundamental]
2362 Types bool, char, wchar_t, and the signed and unsigned integer types
2363 are collectively called integral types.
2365 Note that INTEGRAL_TYPE_P, as defined in tree.h, allows enumeration
2366 types as well, which is incorrect in C++. */
2367 #define CP_INTEGRAL_TYPE_P(TYPE) \
2368 (TREE_CODE (TYPE) == BOOLEAN_TYPE \
2369 || TREE_CODE (TYPE) == INTEGER_TYPE)
2371 /* Returns true if TYPE is an integral or enumeration name. */
2372 #define INTEGRAL_OR_ENUMERATION_TYPE_P(TYPE) \
2373 (CP_INTEGRAL_TYPE_P (TYPE) || TREE_CODE (TYPE) == ENUMERAL_TYPE)
2375 /* [basic.fundamental]
2377 Integral and floating types are collectively called arithmetic
2379 #define ARITHMETIC_TYPE_P(TYPE) \
2380 (CP_INTEGRAL_TYPE_P (TYPE) || TREE_CODE (TYPE) == REAL_TYPE)
2384 Arithmetic types, enumeration types, pointer types, and
2385 pointer-to-member types, are collectively called scalar types. */
2386 #define SCALAR_TYPE_P(TYPE) \
2387 (ARITHMETIC_TYPE_P (TYPE) \
2388 || TREE_CODE (TYPE) == ENUMERAL_TYPE \
2389 || TYPE_PTR_P (TYPE) \
2390 || TYPE_PTR_TO_MEMBER_P (TYPE))
2394 An aggregate is an array or a class with no user-declared
2395 constructors, no private or protected non-static data members, no
2396 base classes, and no virtual functions.
2398 As an extension, we also treat vectors as aggregates. */
2399 #define CP_AGGREGATE_TYPE_P(TYPE) \
2400 (TREE_CODE (TYPE) == ARRAY_TYPE \
2401 || TREE_CODE (TYPE) == VECTOR_TYPE \
2402 || (CLASS_TYPE_P (TYPE) \
2403 && !CLASSTYPE_NON_AGGREGATE (TYPE)))
2405 /* Nonzero for a class type means that the class type has a
2406 user-declared constructor. */
2407 #define TYPE_HAS_CONSTRUCTOR(NODE) (TYPE_LANG_FLAG_1 (NODE))
2409 /* When appearing in an INDIRECT_REF, it means that the tree structure
2410 underneath is actually a call to a constructor. This is needed
2411 when the constructor must initialize local storage (which can
2412 be automatically destroyed), rather than allowing it to allocate
2413 space from the heap.
2415 When appearing in a SAVE_EXPR, it means that underneath
2416 is a call to a constructor.
2418 When appearing in a CONSTRUCTOR, the expression is a
2421 When appearing in a FIELD_DECL, it means that this field
2422 has been duly initialized in its constructor. */
2423 #define TREE_HAS_CONSTRUCTOR(NODE) (TREE_LANG_FLAG_4 (NODE))
2425 /* True if NODE is a brace-enclosed initializer. */
2426 #define BRACE_ENCLOSED_INITIALIZER_P(NODE) \
2427 (TREE_CODE (NODE) == CONSTRUCTOR && !TREE_TYPE (NODE))
2429 #define EMPTY_CONSTRUCTOR_P(NODE) (TREE_CODE (NODE) == CONSTRUCTOR \
2430 && CONSTRUCTOR_ELTS (NODE) == NULL_TREE \
2431 && ! TREE_HAS_CONSTRUCTOR (NODE))
2433 /* Nonzero for _TYPE means that the _TYPE defines a destructor. */
2434 #define TYPE_HAS_DESTRUCTOR(NODE) (TYPE_LANG_FLAG_2 (NODE))
2436 /* Nonzero means that an object of this type can not be initialized using
2437 an initializer list. */
2438 #define CLASSTYPE_NON_AGGREGATE(NODE) \
2439 (LANG_TYPE_CLASS_CHECK (NODE)->non_aggregate)
2440 #define TYPE_NON_AGGREGATE_CLASS(NODE) \
2441 (IS_AGGR_TYPE (NODE) && CLASSTYPE_NON_AGGREGATE (NODE))
2443 /* Nonzero if there is a user-defined X::op=(x&) for this class. */
2444 #define TYPE_HAS_REAL_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_real_assign_ref)
2445 #define TYPE_HAS_COMPLEX_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_assign_ref)
2446 #define TYPE_HAS_ABSTRACT_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_abstract_assign_ref)
2447 #define TYPE_HAS_COMPLEX_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_init_ref)
2449 /* Nonzero if TYPE has a trivial destructor. From [class.dtor]:
2451 A destructor is trivial if it is an implicitly declared
2454 - all of the direct base classes of its class have trivial
2457 - for all of the non-static data members of its class that are
2458 of class type (or array thereof), each such class has a
2459 trivial destructor. */
2460 #define TYPE_HAS_TRIVIAL_DESTRUCTOR(NODE) \
2461 (!TYPE_HAS_NONTRIVIAL_DESTRUCTOR (NODE))
2463 /* Nonzero for _TYPE node means that this type does not have a trivial
2464 destructor. Therefore, destroying an object of this type will
2465 involve a call to a destructor. This can apply to objects of
2466 ARRAY_TYPE is the type of the elements needs a destructor. */
2467 #define TYPE_HAS_NONTRIVIAL_DESTRUCTOR(NODE) \
2468 (TYPE_LANG_FLAG_4 (NODE))
2470 /* Nonzero for class type means that copy initialization of this type can use
2472 #define TYPE_HAS_TRIVIAL_INIT_REF(NODE) \
2473 (TYPE_HAS_INIT_REF (NODE) && ! TYPE_HAS_COMPLEX_INIT_REF (NODE))
2475 /* Nonzero for class type means that assignment of this type can use
2477 #define TYPE_HAS_TRIVIAL_ASSIGN_REF(NODE) \
2478 (TYPE_HAS_ASSIGN_REF (NODE) && ! TYPE_HAS_COMPLEX_ASSIGN_REF (NODE))
2480 /* Returns true if NODE is a pointer-to-data-member. */
2481 #define TYPE_PTRMEM_P(NODE) \
2482 (TREE_CODE (NODE) == OFFSET_TYPE)
2483 #define TYPE_PTR_P(NODE) \
2484 (TREE_CODE (NODE) == POINTER_TYPE)
2485 #define TYPE_PTROB_P(NODE) \
2486 (TYPE_PTR_P (NODE) \
2487 && TREE_CODE (TREE_TYPE (NODE)) != FUNCTION_TYPE \
2488 && TREE_CODE (TREE_TYPE (NODE)) != METHOD_TYPE \
2489 && TREE_CODE (TREE_TYPE (NODE)) != VOID_TYPE)
2490 #define TYPE_PTROBV_P(NODE) \
2491 (TYPE_PTR_P (NODE) && TREE_CODE (TREE_TYPE (NODE)) != FUNCTION_TYPE)
2492 #define TYPE_PTRFN_P(NODE) \
2493 (TREE_CODE (NODE) == POINTER_TYPE \
2494 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
2495 #define TYPE_REFFN_P(NODE) \
2496 (TREE_CODE (NODE) == REFERENCE_TYPE \
2497 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
2499 /* Nonzero for _TYPE node means that this type is a pointer to member
2501 #define TYPE_PTRMEMFUNC_P(NODE) \
2502 (TREE_CODE (NODE) == RECORD_TYPE \
2503 && TYPE_LANG_SPECIFIC (NODE) \
2504 && TYPE_PTRMEMFUNC_FLAG (NODE))
2506 #define TYPE_PTRMEMFUNC_FLAG(NODE) \
2507 (LANG_TYPE_CLASS_CHECK (NODE)->ptrmemfunc_flag)
2509 /* Returns true if NODE is a pointer-to-member. */
2510 #define TYPE_PTR_TO_MEMBER_P(NODE) \
2511 (TYPE_PTRMEM_P (NODE) || TYPE_PTRMEMFUNC_P (NODE))
2513 /* Indicates when overload resolution may resolve to a pointer to
2514 member function. [expr.unary.op]/3 */
2515 #define PTRMEM_OK_P(NODE) \
2516 TREE_LANG_FLAG_0 (TREE_CHECK2 ((NODE), ADDR_EXPR, OFFSET_REF))
2518 /* Get the POINTER_TYPE to the METHOD_TYPE associated with this
2519 pointer to member function. TYPE_PTRMEMFUNC_P _must_ be true,
2520 before using this macro. */
2521 #define TYPE_PTRMEMFUNC_FN_TYPE(NODE) \
2522 (TREE_TYPE (TYPE_FIELDS (NODE)))
2524 /* Returns `A' for a type like `int (A::*)(double)' */
2525 #define TYPE_PTRMEMFUNC_OBJECT_TYPE(NODE) \
2526 TYPE_METHOD_BASETYPE (TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
2528 /* These are use to manipulate the canonical RECORD_TYPE from the
2529 hashed POINTER_TYPE, and can only be used on the POINTER_TYPE. */
2530 #define TYPE_GET_PTRMEMFUNC_TYPE(NODE) \
2531 (TYPE_LANG_SPECIFIC (NODE) ? LANG_TYPE_PTRMEM_CHECK (NODE)->record : NULL)
2532 #define TYPE_SET_PTRMEMFUNC_TYPE(NODE, VALUE) \
2534 if (TYPE_LANG_SPECIFIC (NODE) == NULL) \
2536 TYPE_LANG_SPECIFIC (NODE) = \
2537 ggc_alloc_cleared (sizeof (struct lang_type_ptrmem)); \
2538 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.h.is_lang_type_class = 0; \
2540 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.record = (VALUE); \
2542 /* Returns the pfn field from a TYPE_PTRMEMFUNC_P. */
2543 #define PFN_FROM_PTRMEMFUNC(NODE) pfn_from_ptrmemfunc ((NODE))
2545 /* For a pointer-to-member type of the form `T X::*', this is `X'.
2546 For a type like `void (X::*)() const', this type is `X', not `const
2547 X'. To get at the `const X' you have to look at the
2548 TYPE_PTRMEM_POINTED_TO_TYPE; there, the first parameter will have
2550 #define TYPE_PTRMEM_CLASS_TYPE(NODE) \
2551 (TYPE_PTRMEM_P (NODE) \
2552 ? TYPE_OFFSET_BASETYPE (NODE) \
2553 : TYPE_PTRMEMFUNC_OBJECT_TYPE (NODE))
2555 /* For a pointer-to-member type of the form `T X::*', this is `T'. */
2556 #define TYPE_PTRMEM_POINTED_TO_TYPE(NODE) \
2557 (TYPE_PTRMEM_P (NODE) \
2558 ? TREE_TYPE (NODE) \
2559 : TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
2561 /* For a pointer-to-member constant `X::Y' this is the RECORD_TYPE for
2563 #define PTRMEM_CST_CLASS(NODE) \
2564 TYPE_PTRMEM_CLASS_TYPE (TREE_TYPE (PTRMEM_CST_CHECK (NODE)))
2566 /* For a pointer-to-member constant `X::Y' this is the _DECL for
2568 #define PTRMEM_CST_MEMBER(NODE) (((ptrmem_cst_t)PTRMEM_CST_CHECK (NODE))->member)
2570 /* The expression in question for a TYPEOF_TYPE. */
2571 #define TYPEOF_TYPE_EXPR(NODE) (TYPEOF_TYPE_CHECK (NODE))->type.values
2573 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `extern' was
2574 specified in its declaration. This can also be set for an
2575 erroneously declared PARM_DECL. */
2576 #define DECL_THIS_EXTERN(NODE) \
2577 DECL_LANG_FLAG_2 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
2579 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `static' was
2580 specified in its declaration. This can also be set for an
2581 erroneously declared PARM_DECL. */
2582 #define DECL_THIS_STATIC(NODE) \
2583 DECL_LANG_FLAG_6 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
2585 /* Nonzero if TYPE is an anonymous union or struct type. We have to use a
2586 flag for this because "A union for which objects or pointers are
2587 declared is not an anonymous union" [class.union]. */
2588 #define ANON_AGGR_TYPE_P(NODE) \
2589 (CLASS_TYPE_P (NODE) && LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr)
2590 #define SET_ANON_AGGR_TYPE_P(NODE) \
2591 (LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr = 1)
2593 /* Nonzero if TYPE is an anonymous union type. */
2594 #define ANON_UNION_TYPE_P(NODE) \
2595 (TREE_CODE (NODE) == UNION_TYPE && ANON_AGGR_TYPE_P (NODE))
2597 #define UNKNOWN_TYPE LANG_TYPE
2599 /* Define fields and accessors for nodes representing declared names. */
2601 #define TYPE_WAS_ANONYMOUS(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->was_anonymous)
2603 /* C++: all of these are overloaded! These apply only to TYPE_DECLs. */
2605 /* The format of each node in the DECL_FRIENDLIST is as follows:
2607 The TREE_PURPOSE will be the name of a function, i.e., an
2608 IDENTIFIER_NODE. The TREE_VALUE will be itself a TREE_LIST, whose
2609 TREE_VALUEs are friends with the given name. */
2610 #define DECL_FRIENDLIST(NODE) (DECL_INITIAL (NODE))
2611 #define FRIEND_NAME(LIST) (TREE_PURPOSE (LIST))
2612 #define FRIEND_DECLS(LIST) (TREE_VALUE (LIST))
2614 /* The DECL_ACCESS, if non-NULL, is a TREE_LIST. The TREE_PURPOSE of
2615 each node is a type; the TREE_VALUE is the access granted for this
2616 DECL in that type. The DECL_ACCESS is set by access declarations.
2617 For example, if a member that would normally be public in a
2618 derived class is made protected, then the derived class and the
2619 protected_access_node will appear in the DECL_ACCESS for the node. */
2620 #define DECL_ACCESS(NODE) (LANG_DECL_U2_CHECK (NODE, 0)->access)
2622 /* Nonzero if the FUNCTION_DECL is a global constructor. */
2623 #define DECL_GLOBAL_CTOR_P(NODE) \
2624 (DECL_LANG_SPECIFIC (NODE)->decl_flags.global_ctor_p)
2626 /* Nonzero if the FUNCTION_DECL is a global destructor. */
2627 #define DECL_GLOBAL_DTOR_P(NODE) \
2628 (DECL_LANG_SPECIFIC (NODE)->decl_flags.global_dtor_p)
2630 /* Accessor macros for C++ template decl nodes. */
2632 /* The DECL_TEMPLATE_PARMS are a list. The TREE_PURPOSE of each node
2633 is a INT_CST whose TREE_INT_CST_LOW indicates the level of the
2634 template parameters, with 1 being the outermost set of template
2635 parameters. The TREE_VALUE is a vector, whose elements are the
2636 template parameters at each level. Each element in the vector is a
2637 TREE_LIST, whose TREE_VALUE is a PARM_DECL (if the parameter is a
2638 non-type parameter), or a TYPE_DECL (if the parameter is a type
2639 parameter). The TREE_PURPOSE is the default value, if any. The
2640 TEMPLATE_PARM_INDEX for the parameter is available as the
2641 DECL_INITIAL (for a PARM_DECL) or as the TREE_TYPE (for a
2643 #define DECL_TEMPLATE_PARMS(NODE) DECL_ARGUMENTS (NODE)
2644 #define DECL_INNERMOST_TEMPLATE_PARMS(NODE) \
2645 INNERMOST_TEMPLATE_PARMS (DECL_TEMPLATE_PARMS (NODE))
2646 #define DECL_NTPARMS(NODE) \
2647 TREE_VEC_LENGTH (DECL_INNERMOST_TEMPLATE_PARMS (NODE))
2648 /* For function, method, class-data templates. */
2649 #define DECL_TEMPLATE_RESULT(NODE) DECL_RESULT_FLD (NODE)
2650 /* For a static member variable template, the
2651 DECL_TEMPLATE_INSTANTIATIONS list contains the explicitly and
2652 implicitly generated instantiations of the variable. There are no
2653 partial instantiations of static member variables, so all of these
2654 will be full instantiations.
2656 For a class template the DECL_TEMPLATE_INSTANTIATIONS lists holds
2657 all instantiations and specializations of the class type, including
2658 partial instantiations and partial specializations.
2660 In both cases, the TREE_PURPOSE of each node contains the arguments
2661 used; the TREE_VALUE contains the generated variable. The template
2662 arguments are always complete. For example, given:
2664 template <class T> struct S1 {
2665 template <class U> struct S2 {};
2666 template <class U> struct S2<U*> {};
2669 the record for the partial specialization will contain, as its
2670 argument list, { {T}, {U*} }, and will be on the
2671 DECL_TEMPLATE_INSTANTIATIONS list for `template <class T> template
2672 <class U> struct S1<T>::S2'.
2674 This list is not used for function templates. */
2675 #define DECL_TEMPLATE_INSTANTIATIONS(NODE) DECL_VINDEX (NODE)
2676 /* For a function template, the DECL_TEMPLATE_SPECIALIZATIONS lists
2677 contains all instantiations and specializations of the function,
2678 including partial instantiations. For a partial instantiation
2679 which is a specialization, this list holds only full
2680 specializations of the template that are instantiations of the
2681 partial instantiation. For example, given:
2683 template <class T> struct S {
2684 template <class U> void f(U);
2685 template <> void f(T);
2688 the `S<int>::f<int>(int)' function will appear on the
2689 DECL_TEMPLATE_SPECIALIZATIONS list for both `template <class T>
2690 template <class U> void S<T>::f(U)' and `template <class T> void
2691 S<int>::f(T)'. In the latter case, however, it will have only the
2692 innermost set of arguments (T, in this case). The DECL_TI_TEMPLATE
2693 for the function declaration will point at the specialization, not
2694 the fully general template.
2696 For a class template, this list contains the partial
2697 specializations of this template. (Full specializations are not
2698 recorded on this list.) The TREE_PURPOSE holds the innermost
2699 arguments used in the partial specialization (e.g., for `template
2700 <class T> struct S<T*, int>' this will be `T*'.) The TREE_VALUE
2701 holds the innermost template parameters for the specialization
2702 (e.g., `T' in the example above.) The TREE_TYPE is the _TYPE node
2703 for the partial specialization.
2705 This list is not used for static variable templates. */
2706 #define DECL_TEMPLATE_SPECIALIZATIONS(NODE) DECL_SIZE (NODE)
2708 /* Nonzero for a DECL which is actually a template parameter. */
2709 #define DECL_TEMPLATE_PARM_P(NODE) \
2710 (DECL_LANG_FLAG_0 (NODE) \
2711 && (TREE_CODE (NODE) == CONST_DECL \
2712 || TREE_CODE (NODE) == PARM_DECL \
2713 || TREE_CODE (NODE) == TYPE_DECL \
2714 || TREE_CODE (NODE) == TEMPLATE_DECL))
2716 /* Mark NODE as a template parameter. */
2717 #define SET_DECL_TEMPLATE_PARM_P(NODE) \
2718 (DECL_LANG_FLAG_0 (NODE) = 1)
2720 /* Nonzero if NODE is a template template parameter. */
2721 #define DECL_TEMPLATE_TEMPLATE_PARM_P(NODE) \
2722 (TREE_CODE (NODE) == TEMPLATE_DECL && DECL_TEMPLATE_PARM_P (NODE))
2724 /* Nonzero if NODE is a TEMPLATE_DECL representing an
2725 UNBOUND_CLASS_TEMPLATE tree node. */
2726 #define DECL_UNBOUND_CLASS_TEMPLATE_P(NODE) \
2727 (TREE_CODE (NODE) == TEMPLATE_DECL && !DECL_TEMPLATE_RESULT (NODE))
2729 #define DECL_FUNCTION_TEMPLATE_P(NODE) \
2730 (TREE_CODE (NODE) == TEMPLATE_DECL \
2731 && !DECL_UNBOUND_CLASS_TEMPLATE_P (NODE) \
2732 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == FUNCTION_DECL)
2734 /* Nonzero for a DECL that represents a template class. */
2735 #define DECL_CLASS_TEMPLATE_P(NODE) \
2736 (TREE_CODE (NODE) == TEMPLATE_DECL \
2737 && !DECL_UNBOUND_CLASS_TEMPLATE_P (NODE) \
2738 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == TYPE_DECL \
2739 && !DECL_TEMPLATE_TEMPLATE_PARM_P (NODE))
2741 /* Nonzero if NODE which declares a type. */
2742 #define DECL_DECLARES_TYPE_P(NODE) \
2743 (TREE_CODE (NODE) == TYPE_DECL || DECL_CLASS_TEMPLATE_P (NODE))
2745 /* Nonzero if NODE is the typedef implicitly generated for a type when
2746 the type is declared. In C++, `struct S {};' is roughly
2747 equivalent to `struct S {}; typedef struct S S;' in C.
2748 DECL_IMPLICIT_TYPEDEF_P will hold for the typedef indicated in this
2749 example. In C++, there is a second implicit typedef for each
2750 class, in the scope of `S' itself, so that you can say `S::S'.
2751 DECL_SELF_REFERENCE_P will hold for that second typedef. */
2752 #define DECL_IMPLICIT_TYPEDEF_P(NODE) \
2753 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_2 (NODE))
2754 #define SET_DECL_IMPLICIT_TYPEDEF_P(NODE) \
2755 (DECL_LANG_FLAG_2 (NODE) = 1)
2756 #define DECL_SELF_REFERENCE_P(NODE) \
2757 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_4 (NODE))
2758 #define SET_DECL_SELF_REFERENCE_P(NODE) \
2759 (DECL_LANG_FLAG_4 (NODE) = 1)
2761 /* A `primary' template is one that has its own template header. A
2762 member function of a class template is a template, but not primary.
2763 A member template is primary. Friend templates are primary, too. */
2765 /* Returns the primary template corresponding to these parameters. */
2766 #define DECL_PRIMARY_TEMPLATE(NODE) \
2767 (TREE_TYPE (DECL_INNERMOST_TEMPLATE_PARMS (NODE)))
2769 /* Returns nonzero if NODE is a primary template. */
2770 #define PRIMARY_TEMPLATE_P(NODE) (DECL_PRIMARY_TEMPLATE (NODE) == (NODE))
2772 #define CLASSTYPE_TEMPLATE_LEVEL(NODE) \
2773 (TREE_INT_CST_LOW (TREE_PURPOSE (CLASSTYPE_TI_TEMPLATE (NODE))))
2775 /* Indicates whether or not (and how) a template was expanded for this
2776 FUNCTION_DECL or VAR_DECL.
2777 0=normal declaration, e.g. int min (int, int);
2778 1=implicit template instantiation
2779 2=explicit template specialization, e.g. int min<int> (int, int);
2780 3=explicit template instantiation, e.g. template int min<int> (int, int); */
2781 #define DECL_USE_TEMPLATE(NODE) (DECL_LANG_SPECIFIC (NODE)->decl_flags.use_template)
2783 #define DECL_TEMPLATE_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) & 1)
2784 #define CLASSTYPE_TEMPLATE_INSTANTIATION(NODE) \
2785 (CLASSTYPE_USE_TEMPLATE (NODE) & 1)
2787 #define DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) == 2)
2788 #define SET_DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) = 2)
2789 #define CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
2790 (CLASSTYPE_USE_TEMPLATE (NODE) == 2)
2791 #define SET_CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
2792 (CLASSTYPE_USE_TEMPLATE (NODE) = 2)
2794 #define DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 1)
2795 #define SET_DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 1)
2796 #define CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
2797 (CLASSTYPE_USE_TEMPLATE (NODE) == 1)
2798 #define SET_CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
2799 (CLASSTYPE_USE_TEMPLATE (NODE) = 1)
2801 #define DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 3)
2802 #define SET_DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 3)
2803 #define CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
2804 (CLASSTYPE_USE_TEMPLATE (NODE) == 3)
2805 #define SET_CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
2806 (CLASSTYPE_USE_TEMPLATE (NODE) = 3)
2808 /* Nonzero if DECL is a friend function which is an instantiation
2809 from the point of view of the compiler, but not from the point of
2810 view of the language. For example given:
2811 template <class T> struct S { friend void f(T) {}; };
2812 the declaration of `void f(int)' generated when S<int> is
2813 instantiated will not be a DECL_TEMPLATE_INSTANTIATION, but will be
2814 a DECL_FRIEND_PSUEDO_TEMPLATE_INSTANTIATION. */
2815 #define DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION(DECL) \
2816 (DECL_TEMPLATE_INFO (DECL) && !DECL_USE_TEMPLATE (DECL))
2818 /* Nonzero iff we are currently processing a declaration for an
2819 entity with its own template parameter list, and which is not a
2820 full specialization. */
2821 #define PROCESSING_REAL_TEMPLATE_DECL_P() \
2822 (processing_template_decl > template_class_depth (current_scope ()))
2824 /* Nonzero if this VAR_DECL or FUNCTION_DECL has already been
2825 instantiated, i.e. its definition has been generated from the
2826 pattern given in the the template. */
2827 #define DECL_TEMPLATE_INSTANTIATED(NODE) \
2828 DECL_LANG_FLAG_1 (VAR_OR_FUNCTION_DECL_CHECK (NODE))
2830 /* We know what we're doing with this decl now. */
2831 #define DECL_INTERFACE_KNOWN(NODE) DECL_LANG_FLAG_5 (NODE)
2833 /* DECL_EXTERNAL must be set on a decl until the decl is actually emitted,
2834 so that assemble_external will work properly. So we have this flag to
2835 tell us whether the decl is really not external. */
2836 #define DECL_NOT_REALLY_EXTERN(NODE) \
2837 (DECL_LANG_SPECIFIC (NODE)->decl_flags.not_really_extern)
2839 #define DECL_REALLY_EXTERN(NODE) \
2840 (DECL_EXTERNAL (NODE) && ! DECL_NOT_REALLY_EXTERN (NODE))
2842 /* A thunk is a stub function.
2844 A thunk is an alternate entry point for an ordinary FUNCTION_DECL.
2845 The address of the ordinary FUNCTION_DECL is given by the
2846 DECL_INITIAL, which is always an ADDR_EXPR whose operand is a
2847 FUNCTION_DECL. The job of the thunk is to either adjust the this
2848 pointer before transferring control to the FUNCTION_DECL, or call
2849 FUNCTION_DECL and then adjust the result value. Note, the result
2850 pointer adjusting thunk must perform a call to the thunked
2851 function, (or be implemented via passing some invisible parameter
2852 to the thunked function, which is modified to perform the
2853 adjustment just before returning).
2855 A thunk may perform either, or both, of the following operations:
2857 o Adjust the this or result pointer by a constant offset.
2858 o Adjust the this or result pointer by looking up a vcall or vbase offset
2861 A this pointer adjusting thunk converts from a base to a derived
2862 class, and hence adds the offsets. A result pointer adjusting thunk
2863 converts from a derived class to a base, and hence subtracts the
2864 offsets. If both operations are performed, then the constant
2865 adjustment is performed first for this pointer adjustment and last
2866 for the result pointer adjustment.
2868 The constant adjustment is given by THUNK_FIXED_OFFSET. If the
2869 vcall or vbase offset is required, THUNK_VIRTUAL_OFFSET is
2870 used. For this pointer adjusting thunks, it is the vcall offset
2871 into the vtable. For result pointer adjusting thunks it is the
2872 binfo of the virtual base to convert to. Use that binfo's vbase
2875 It is possible to have equivalent covariant thunks. These are
2876 distinct virtual covariant thunks whose vbase offsets happen to
2877 have the same value. THUNK_ALIAS is used to pick one as the
2878 canonical thunk, which will get all the this pointer adjusting
2879 thunks attached to it. */
2881 /* An integer indicating how many bytes should be subtracted from the
2882 this or result pointer when this function is called. */
2883 #define THUNK_FIXED_OFFSET(DECL) \
2884 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL))->u.f.fixed_offset)
2886 /* A tree indicating how to perform the virtual adjustment. For a this
2887 adjusting thunk it is the number of bytes to be added to the vtable
2888 to find the vcall offset. For a result adjusting thunk, it is the
2889 binfo of the relevant virtual base. If NULL, then there is no
2890 virtual adjust. (The vptr is always located at offset zero from
2891 the this or result pointer.) (If the covariant type is within the
2892 class hierarchy being laid out, the vbase index is not yet known
2893 at the point we need to create the thunks, hence the need to use
2896 #define THUNK_VIRTUAL_OFFSET(DECL) \
2897 (LANG_DECL_U2_CHECK (FUNCTION_DECL_CHECK (DECL), 0)->virtual_offset)
2899 /* A thunk which is equivalent to another thunk. */
2900 #define THUNK_ALIAS(DECL) \
2901 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->decl_flags.u.thunk_alias)
2903 /* For thunk NODE, this is the FUNCTION_DECL thunked to. */
2904 #define THUNK_TARGET(NODE) \
2905 (DECL_LANG_SPECIFIC (NODE)->u.f.befriending_classes)
2907 /* These macros provide convenient access to the various _STMT nodes
2908 created when parsing template declarations. */
2909 #define TRY_STMTS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 0)
2910 #define TRY_HANDLERS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 1)
2912 #define EH_SPEC_STMTS(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 0)
2913 #define EH_SPEC_RAISES(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 1)
2915 #define USING_STMT_NAMESPACE(NODE) TREE_OPERAND (USING_STMT_CHECK (NODE), 0)
2917 /* Nonzero if this try block is a function try block. */
2918 #define FN_TRY_BLOCK_P(NODE) TREE_LANG_FLAG_3 (TRY_BLOCK_CHECK (NODE))
2919 #define HANDLER_PARMS(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 0)
2920 #define HANDLER_BODY(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 1)
2921 #define HANDLER_TYPE(NODE) TREE_TYPE (HANDLER_CHECK (NODE))
2923 /* The parameters for a call-declarator. */
2924 #define CALL_DECLARATOR_PARMS(NODE) \
2925 (TREE_PURPOSE (TREE_OPERAND (NODE, 1)))
2927 /* The cv-qualifiers for a call-declarator. */
2928 #define CALL_DECLARATOR_QUALS(NODE) \
2929 (TREE_VALUE (TREE_OPERAND (NODE, 1)))
2931 /* The exception-specification for a call-declarator. */
2932 #define CALL_DECLARATOR_EXCEPTION_SPEC(NODE) \
2935 /* An enumeration of the kind of tags that C++ accepts. */
2937 none_type = 0, /* Not a tag type. */
2938 record_type, /* "struct" types. */
2939 class_type, /* "class" types. */
2940 union_type, /* "union" types. */
2941 enum_type, /* "enum" types. */
2942 typename_type /* "typename" types. */
2945 /* The various kinds of lvalues we distinguish. */
2946 typedef enum cp_lvalue_kind {
2947 clk_none = 0, /* Things that are not an lvalue. */
2948 clk_ordinary = 1, /* An ordinary lvalue. */
2949 clk_class = 2, /* An rvalue of class-type. */
2950 clk_bitfield = 4, /* An lvalue for a bit-field. */
2951 clk_packed = 8 /* An lvalue for a packed field. */
2954 /* Various kinds of template specialization, instantiation, etc. */
2955 typedef enum tmpl_spec_kind {
2956 tsk_none, /* Not a template at all. */
2957 tsk_invalid_member_spec, /* An explicit member template
2958 specialization, but the enclosing
2959 classes have not all been explicitly
2961 tsk_invalid_expl_inst, /* An explicit instantiation containing
2962 template parameter lists. */
2963 tsk_excessive_parms, /* A template declaration with too many
2964 template parameter lists. */
2965 tsk_insufficient_parms, /* A template declaration with too few
2967 tsk_template, /* A template declaration. */
2968 tsk_expl_spec, /* An explicit specialization. */
2969 tsk_expl_inst /* An explicit instantiation. */
2972 /* The various kinds of access. BINFO_ACCESS depends on these being
2973 two bit quantities. The numerical values are important; they are
2974 used to initialize RTTI data structures, so changing them changes
2976 typedef enum access_kind {
2977 ak_none = 0, /* Inaccessible. */
2978 ak_public = 1, /* Accessible, as a `public' thing. */
2979 ak_protected = 2, /* Accessible, as a `protected' thing. */
2980 ak_private = 3 /* Accessible, as a `private' thing. */
2983 /* The various kinds of special functions. If you add to this list,
2984 you should update special_function_p as well. */
2985 typedef enum special_function_kind {
2986 sfk_none = 0, /* Not a special function. This enumeral
2987 must have value zero; see
2988 special_function_p. */
2989 sfk_constructor, /* A constructor. */
2990 sfk_copy_constructor, /* A copy constructor. */
2991 sfk_assignment_operator, /* An assignment operator. */
2992 sfk_destructor, /* A destructor. */
2993 sfk_complete_destructor, /* A destructor for complete objects. */
2994 sfk_base_destructor, /* A destructor for base subobjects. */
2995 sfk_deleting_destructor, /* A destructor for complete objects that
2996 deletes the object after it has been
2998 sfk_conversion /* A conversion operator. */
2999 } special_function_kind;
3001 /* The various kinds of linkage. From [basic.link],
3003 A name is said to have linkage when it might denote the same
3004 object, reference, function, type, template, namespace or value
3005 as a name introduced in another scope:
3007 -- When a name has external linkage, the entity it denotes can
3008 be referred to from scopes of other translation units or from
3009 other scopes of the same translation unit.
3011 -- When a name has internal linkage, the entity it denotes can
3012 be referred to by names from other scopes in the same
3015 -- When a name has no linkage, the entity it denotes cannot be
3016 referred to by names from other scopes. */
3018 typedef enum linkage_kind {
3019 lk_none, /* No linkage. */
3020 lk_internal, /* Internal linkage. */
3021 lk_external /* External linkage. */
3024 /* Bitmask flags to control type substitution. */
3025 typedef enum tsubst_flags_t {
3026 tf_none = 0, /* nothing special */
3027 tf_error = 1 << 0, /* give error messages */
3028 tf_warning = 1 << 1, /* give warnings too */
3029 tf_ignore_bad_quals = 1 << 2, /* ignore bad cvr qualifiers */
3030 tf_keep_type_decl = 1 << 3, /* retain typedef type decls
3031 (make_typename_type use) */
3032 tf_ptrmem_ok = 1 << 4, /* pointers to member ok (internal
3033 instantiate_type use) */
3034 tf_user = 1 << 5, /* found template must be a user template
3035 (lookup_template_class use) */
3036 tf_stmt_expr_cmpd = 1 << 6, /* tsubsting the compound statement of
3037 a statement expr. */
3038 tf_stmt_expr_body = 1 << 7, /* tsubsting the statements in the
3039 body of the compound statement of a
3041 tf_conv = 1 << 8 /* We are determining what kind of
3042 conversion might be permissible,
3043 not actually performing the
3047 /* The kind of checking we can do looking in a class hierarchy. */
3048 typedef enum base_access {
3049 ba_any = 0, /* Do not check access, allow an ambiguous base,
3050 prefer a non-virtual base */
3051 ba_ignore = 1, /* Do not check access */
3052 ba_check = 2, /* Check access */
3053 ba_not_special = 3, /* Do not consider special privilege
3054 current_class_type might give. */
3055 ba_quiet = 4 /* Do not issue error messages (bit mask). */
3058 /* The various kinds of access check during parsing. */
3059 typedef enum deferring_kind {
3060 dk_no_deferred = 0, /* Check access immediately */
3061 dk_deferred = 1, /* Deferred check */
3062 dk_no_check = 2 /* No access check */
3065 /* The kind of base we can find, looking in a class hierarchy.
3066 Values <0 indicate we failed. */
3067 typedef enum base_kind {
3068 bk_inaccessible = -3, /* The base is inaccessible */
3069 bk_ambig = -2, /* The base is ambiguous */
3070 bk_not_base = -1, /* It is not a base */
3071 bk_same_type = 0, /* It is the same type */
3072 bk_proper_base = 1, /* It is a proper base */
3073 bk_via_virtual = 2 /* It is a proper base, but via a virtual
3074 path. This might not be the canonical
3078 /* Set by add_implicitly_declared_members() to keep those members from
3079 being flagged as deprecated or reported as using deprecated
3081 extern int adding_implicit_members;
3084 /* A node that is a list (length 1) of error_mark_nodes. */
3085 extern GTY(()) tree error_mark_list;
3087 /* Node for "pointer to (virtual) function".
3088 This may be distinct from ptr_type_node so gdb can distinguish them. */
3089 #define vfunc_ptr_type_node vtable_entry_type
3092 /* For building calls to `delete'. */
3093 extern GTY(()) tree integer_two_node;
3094 extern GTY(()) tree integer_three_node;
3096 /* The number of function bodies which we are currently processing.
3097 (Zero if we are at namespace scope, one inside the body of a
3098 function, two inside the body of a function in a local class, etc.) */
3099 extern int function_depth;
3101 typedef struct deferred_access GTY(())
3103 /* A TREE_LIST representing name-lookups for which we have deferred
3104 checking access controls. We cannot check the accessibility of
3105 names used in a decl-specifier-seq until we know what is being
3106 declared because code like:
3113 A::B* A::f() { return 0; }
3115 is valid, even though `A::B' is not generally accessible.
3117 The TREE_PURPOSE of each node is the scope used to qualify the
3118 name being looked up; the TREE_VALUE is the DECL to which the
3119 name was resolved. */
3120 tree deferred_access_checks;
3121 /* The current mode of access checks. */
3122 enum deferring_kind deferring_access_checks_kind;
3123 /* The next deferred access data in stack or linked-list. */
3124 struct deferred_access *next;
3129 /* These values are used for the `STRICT' parameter to type_unification and
3130 fn_type_unification. Their meanings are described with the
3131 documentation for fn_type_unification. */
3133 typedef enum unification_kind_t {
3138 } unification_kind_t;
3140 /* Macros for operating on a template instantiation level node, represented
3141 by an EXPR_WITH_FILE_LOCATION. */
3143 #define TINST_DECL(NODE) EXPR_WFL_NODE (NODE)
3144 #define TINST_LINE(NODE) EXPR_WFL_LINENO (NODE)
3145 #define TINST_FILE(NODE) EXPR_WFL_FILENAME (NODE)
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"
3241 #define CTOR_NAME "__ct"
3242 #define DTOR_NAME "__dt"
3244 #define IN_CHARGE_NAME "__in_chrg"
3246 #define VTBL_PTR_TYPE "__vtbl_ptr_type"
3247 #define VTABLE_DELTA_NAME "__delta"
3248 #define VTABLE_PFN_NAME "__pfn"
3250 #define EXCEPTION_CLEANUP_NAME "exception cleanup"
3252 #if !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL)
3254 #define VPTR_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[0] == JOINER \
3255 && IDENTIFIER_POINTER (ID_NODE)[1] == 'v')
3257 #define VTABLE_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == 'v' \
3258 && IDENTIFIER_POINTER (ID_NODE)[2] == 't' \
3259 && IDENTIFIER_POINTER (ID_NODE)[3] == JOINER)
3261 #define TEMP_NAME_P(ID_NODE) \
3262 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, sizeof (AUTO_TEMP_NAME)-1))
3263 #define VFIELD_NAME_P(ID_NODE) \
3264 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, sizeof(VFIELD_NAME)-1))
3266 /* For anonymous aggregate types, we need some sort of name to
3267 hold on to. In practice, this should not appear, but it should
3268 not be harmful if it does. */
3269 #define ANON_AGGRNAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[0] == JOINER \
3270 && IDENTIFIER_POINTER (ID_NODE)[1] == '_')
3271 #endif /* !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) */
3273 /* Returns nonzero iff NODE is a declaration for the global function
3275 #define DECL_MAIN_P(NODE) \
3276 (DECL_EXTERN_C_FUNCTION_P (NODE) \
3277 && DECL_NAME (NODE) != NULL_TREE \
3278 && MAIN_NAME_P (DECL_NAME (NODE)))
3281 /* Nonzero if we're done parsing and into end-of-file activities. */
3285 /* A list of namespace-scope objects which have constructors or
3286 destructors which reside in the global scope. The decl is stored
3287 in the TREE_VALUE slot and the initializer is stored in the
3288 TREE_PURPOSE slot. */
3289 extern GTY(()) tree static_aggregates;
3291 /* Functions called along with real static constructors and destructors. */
3293 extern GTY(()) tree static_ctors;
3294 extern GTY(()) tree static_dtors;
3296 enum overload_flags { NO_SPECIAL = 0, DTOR_FLAG, OP_FLAG, TYPENAME_FLAG };
3298 /* Some macros for char-based bitfields. */
3299 #define B_SET(A,X) ((A)[(X)>>3] |= (1 << ((X)&7)))
3300 #define B_CLR(A,X) ((A)[(X)>>3] &= ~(1 << ((X)&7)))
3301 #define B_TST(A,X) ((A)[(X)>>3] & (1 << ((X)&7)))
3303 /* These are uses as bits in flags passed to build_new_method_call
3304 to control its error reporting behavior.
3306 LOOKUP_PROTECT means flag access violations.
3307 LOOKUP_COMPLAIN mean complain if no suitable member function
3308 matching the arguments is found.
3309 LOOKUP_NORMAL is just a combination of these two.
3310 LOOKUP_NONVIRTUAL means make a direct call to the member function found
3311 LOOKUP_GLOBAL means search through the space of overloaded functions,
3312 as well as the space of member functions.
3313 LOOKUP_ONLYCONVERTING means that non-conversion constructors are not tried.
3314 DIRECT_BIND means that if a temporary is created, it should be created so
3315 that it lives as long as the current variable bindings; otherwise it
3316 only lives until the end of the complete-expression. It also forces
3317 direct-initialization in cases where other parts of the compiler have
3318 already generated a temporary, such as reference initialization and the
3320 LOOKUP_NO_CONVERSION means that user-defined conversions are not
3321 permitted. Built-in conversions are permitted.
3322 LOOKUP_DESTRUCTOR means explicit call to destructor.
3323 LOOKUP_NO_TEMP_BIND means temporaries will not be bound to references.
3325 These are used in global lookup to support elaborated types and
3328 LOOKUP_PREFER_TYPES means not to accept objects, and possibly namespaces.
3329 LOOKUP_PREFER_NAMESPACES means not to accept objects, and possibly types.
3330 LOOKUP_PREFER_BOTH means class-or-namespace-name. */
3332 #define LOOKUP_PROTECT (1)
3333 #define LOOKUP_COMPLAIN (2)
3334 #define LOOKUP_NORMAL (3)
3335 #define LOOKUP_NONVIRTUAL (8)
3336 #define LOOKUP_GLOBAL (16)
3337 #define LOOKUP_ONLYCONVERTING (128)
3338 #define DIRECT_BIND (256)
3339 #define LOOKUP_NO_CONVERSION (512)
3340 #define LOOKUP_DESTRUCTOR (512)
3341 #define LOOKUP_NO_TEMP_BIND (1024)
3342 #define LOOKUP_PREFER_TYPES (2048)
3343 #define LOOKUP_PREFER_NAMESPACES (4096)
3344 #define LOOKUP_PREFER_BOTH (6144)
3346 #define LOOKUP_NAMESPACES_ONLY(F) \
3347 (((F) & LOOKUP_PREFER_NAMESPACES) && !((F) & LOOKUP_PREFER_TYPES))
3348 #define LOOKUP_TYPES_ONLY(F) \
3349 (!((F) & LOOKUP_PREFER_NAMESPACES) && ((F) & LOOKUP_PREFER_TYPES))
3350 #define LOOKUP_QUALIFIERS_ONLY(F) ((F) & LOOKUP_PREFER_BOTH)
3353 /* These flags are used by the conversion code.
3354 CONV_IMPLICIT : Perform implicit conversions (standard and user-defined).
3355 CONV_STATIC : Perform the explicit conversions for static_cast.
3356 CONV_CONST : Perform the explicit conversions for const_cast.
3357 CONV_REINTERPRET: Perform the explicit conversions for reinterpret_cast.
3358 CONV_PRIVATE : Perform upcasts to private bases.
3359 CONV_FORCE_TEMP : Require a new temporary when converting to the same
3362 #define CONV_IMPLICIT 1
3363 #define CONV_STATIC 2
3364 #define CONV_CONST 4
3365 #define CONV_REINTERPRET 8
3366 #define CONV_PRIVATE 16
3367 /* #define CONV_NONCONVERTING 32 */
3368 #define CONV_FORCE_TEMP 64
3369 #define CONV_STATIC_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_FORCE_TEMP)
3370 #define CONV_OLD_CONVERT (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
3372 #define CONV_C_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
3373 | CONV_REINTERPRET | CONV_PRIVATE | CONV_FORCE_TEMP)
3375 /* Used by build_expr_type_conversion to indicate which types are
3376 acceptable as arguments to the expression under consideration. */
3378 #define WANT_INT 1 /* integer types, including bool */
3379 #define WANT_FLOAT 2 /* floating point types */
3380 #define WANT_ENUM 4 /* enumerated types */
3381 #define WANT_POINTER 8 /* pointer types */
3382 #define WANT_NULL 16 /* null pointer constant */
3383 #define WANT_ARITH (WANT_INT | WANT_FLOAT)
3385 /* Used with comptypes, and related functions, to guide type
3388 #define COMPARE_STRICT 0 /* Just check if the types are the
3390 #define COMPARE_BASE 1 /* Check to see if the second type is
3391 derived from the first. */
3392 #define COMPARE_DERIVED 2 /* Like COMPARE_BASE, but in
3394 #define COMPARE_REDECLARATION 4 /* The comparison is being done when
3395 another declaration of an existing
3398 /* Used with push_overloaded_decl. */
3399 #define PUSH_GLOBAL 0 /* Push the DECL into namespace scope,
3400 regardless of the current scope. */
3401 #define PUSH_LOCAL 1 /* Push the DECL into the current
3403 #define PUSH_USING 2 /* We are pushing this DECL as the
3404 result of a using declaration. */
3406 /* Used with start function. */
3407 #define SF_DEFAULT 0 /* No flags. */
3408 #define SF_PRE_PARSED 1 /* The function declaration has
3409 already been parsed. */
3410 #define SF_INCLASS_INLINE 2 /* The function is an inline, defined
3411 in the class body. */
3413 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, or if TYPE2
3414 is derived from TYPE1, or if TYPE2 is a pointer (reference) to a
3415 class derived from the type pointed to (referred to) by TYPE1. */
3416 #define same_or_base_type_p(TYPE1, TYPE2) \
3417 comptypes ((TYPE1), (TYPE2), COMPARE_BASE)
3419 /* These macros are used to access a TEMPLATE_PARM_INDEX. */
3420 #define TEMPLATE_PARM_INDEX_CAST(NODE) \
3421 ((template_parm_index*)TEMPLATE_PARM_INDEX_CHECK (NODE))
3422 #define TEMPLATE_PARM_IDX(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->index)
3423 #define TEMPLATE_PARM_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->level)
3424 #define TEMPLATE_PARM_DESCENDANTS(NODE) (TREE_CHAIN (NODE))
3425 #define TEMPLATE_PARM_ORIG_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->orig_level)
3426 #define TEMPLATE_PARM_DECL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->decl)
3428 /* These macros are for accessing the fields of TEMPLATE_TYPE_PARM,
3429 TEMPLATE_TEMPLATE_PARM and BOUND_TEMPLATE_TEMPLATE_PARM nodes. */
3430 #define TEMPLATE_TYPE_PARM_INDEX(NODE) \
3431 (TREE_CHECK3 ((NODE), TEMPLATE_TYPE_PARM, TEMPLATE_TEMPLATE_PARM, \
3432 BOUND_TEMPLATE_TEMPLATE_PARM))->type.values
3433 #define TEMPLATE_TYPE_IDX(NODE) \
3434 (TEMPLATE_PARM_IDX (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3435 #define TEMPLATE_TYPE_LEVEL(NODE) \
3436 (TEMPLATE_PARM_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3437 #define TEMPLATE_TYPE_ORIG_LEVEL(NODE) \
3438 (TEMPLATE_PARM_ORIG_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3439 #define TEMPLATE_TYPE_DECL(NODE) \
3440 (TEMPLATE_PARM_DECL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3442 /* These constants can used as bit flags in the process of tree formatting.
3444 TFF_PLAIN_IDENTIFIER: unqualified part of a name.
3445 TFF_SCOPE: include the class and namespace scope of the name.
3446 TFF_CHASE_TYPEDEF: print the original type-id instead of the typedef-name.
3447 TFF_DECL_SPECIFIERS: print decl-specifiers.
3448 TFF_CLASS_KEY_OR_ENUM: precede a class-type name (resp. enum name) with
3449 a class-key (resp. `enum').
3450 TFF_RETURN_TYPE: include function return type.
3451 TFF_FUNCTION_DEFAULT_ARGUMENTS: include function default parameter values.
3452 TFF_EXCEPTION_SPECIFICATION: show function exception specification.
3453 TFF_TEMPLATE_HEADER: show the template<...> header in a
3454 template-declaration.
3455 TFF_TEMPLATE_NAME: show only template-name.
3456 TFF_EXPR_IN_PARENS: parenthesize expressions.
3457 TFF_NO_FUNCTION_ARGUMENTS: don't show function arguments. */
3459 #define TFF_PLAIN_IDENTIFIER (0)
3460 #define TFF_SCOPE (1)
3461 #define TFF_CHASE_TYPEDEF (1 << 1)
3462 #define TFF_DECL_SPECIFIERS (1 << 2)
3463 #define TFF_CLASS_KEY_OR_ENUM (1 << 3)
3464 #define TFF_RETURN_TYPE (1 << 4)
3465 #define TFF_FUNCTION_DEFAULT_ARGUMENTS (1 << 5)
3466 #define TFF_EXCEPTION_SPECIFICATION (1 << 6)
3467 #define TFF_TEMPLATE_HEADER (1 << 7)
3468 #define TFF_TEMPLATE_NAME (1 << 8)
3469 #define TFF_EXPR_IN_PARENS (1 << 9)
3470 #define TFF_NO_FUNCTION_ARGUMENTS (1 << 10)
3472 /* Returns the TEMPLATE_DECL associated to a TEMPLATE_TEMPLATE_PARM
3474 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_DECL(NODE) \
3475 ((TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM) \
3476 ? TYPE_TI_TEMPLATE (NODE) \
3481 extern void init_reswords (void);
3483 /* Indexed by TREE_CODE, these tables give C-looking names to
3484 operators represented by TREE_CODES. For example,
3485 opname_tab[(int) MINUS_EXPR] == "-". */
3486 extern const char **opname_tab, **assignop_tab;
3488 typedef struct operator_name_info_t GTY(())
3490 /* The IDENTIFIER_NODE for the operator. */
3492 /* The name of the operator. */
3494 /* The mangled name of the operator. */
3495 const char *mangled_name;
3496 /* The arity of the operator. */
3498 } operator_name_info_t;
3500 /* A mapping from tree codes to operator name information. */
3501 extern GTY(()) operator_name_info_t operator_name_info
3502 [(int) LAST_CPLUS_TREE_CODE];
3503 /* Similar, but for assignment operators. */
3504 extern GTY(()) operator_name_info_t assignment_operator_name_info
3505 [(int) LAST_CPLUS_TREE_CODE];
3508 extern bool check_dtor_name (tree, tree);
3510 extern tree build_vfield_ref (tree, tree);
3511 extern tree build_conditional_expr (tree, tree, tree);
3512 extern tree build_addr_func (tree);
3513 extern tree build_call (tree, tree);
3514 extern bool null_ptr_cst_p (tree);
3515 extern bool sufficient_parms_p (tree);
3516 extern tree type_decays_to (tree);
3517 extern tree build_user_type_conversion (tree, tree, int);
3518 extern tree build_new_function_call (tree, tree);
3519 extern tree build_operator_new_call (tree, tree, tree *, tree *);
3520 extern tree build_new_method_call (tree, tree, tree, tree, int);
3521 extern tree build_special_member_call (tree, tree, tree, tree, int);
3522 extern tree build_new_op (enum tree_code, int, tree, tree, tree, bool *);
3523 extern tree build_op_delete_call (enum tree_code, tree, tree, bool, tree);
3524 extern bool can_convert (tree, tree);
3525 extern bool can_convert_arg (tree, tree, tree);
3526 extern bool can_convert_arg_bad (tree, tree, tree);
3527 extern bool enforce_access (tree, tree);
3528 extern tree convert_default_arg (tree, tree, tree, int);
3529 extern tree convert_arg_to_ellipsis (tree);
3530 extern tree build_x_va_arg (tree, tree);
3531 extern tree cxx_type_promotes_to (tree);
3532 extern tree type_passed_as (tree);
3533 extern tree convert_for_arg_passing (tree, tree);
3534 extern tree cp_convert_parm_for_inlining (tree, tree, tree);
3535 extern bool is_properly_derived_from (tree, tree);
3536 extern tree initialize_reference (tree, tree, tree, tree *);
3537 extern tree make_temporary_var_for_ref_to_temp (tree, tree);
3538 extern tree strip_top_quals (tree);
3539 extern tree perform_implicit_conversion (tree, tree);
3540 extern tree perform_direct_initialization_if_possible (tree, tree);
3541 extern tree in_charge_arg_for_name (tree);
3542 extern tree build_cxx_call (tree, tree, tree);
3543 #ifdef ENABLE_CHECKING
3544 extern void validate_conversion_obstack (void);
3545 #endif /* ENABLE_CHECKING */
3548 extern tree build_base_path (enum tree_code, tree, tree, int);
3549 extern tree convert_to_base (tree, tree, bool);
3550 extern tree convert_to_base_statically (tree, tree);
3551 extern tree build_vtbl_ref (tree, tree);
3552 extern tree build_vfn_ref (tree, tree);
3553 extern tree get_vtable_decl (tree, int);
3554 extern void resort_type_method_vec
3555 (void *, void *, gt_pointer_operator, void *);
3556 extern void add_method (tree, tree, int);
3557 extern int currently_open_class (tree);
3558 extern tree currently_open_derived_class (tree);
3559 extern tree finish_struct (tree, tree);
3560 extern void finish_struct_1 (tree);
3561 extern int resolves_to_fixed_type_p (tree, int *);
3562 extern void init_class_processing (void);
3563 extern int is_empty_class (tree);
3564 extern void pushclass (tree);
3565 extern void popclass (void);
3566 extern void push_nested_class (tree);
3567 extern void pop_nested_class (void);
3568 extern int current_lang_depth (void);
3569 extern void push_lang_context (tree);
3570 extern void pop_lang_context (void);
3571 extern tree instantiate_type (tree, tree, tsubst_flags_t);
3572 extern void print_class_statistics (void);
3573 extern void cxx_print_statistics (void);
3574 extern void cxx_print_xnode (FILE *, tree, int);
3575 extern void cxx_print_decl (FILE *, tree, int);
3576 extern void cxx_print_type (FILE *, tree, int);
3577 extern void cxx_print_identifier (FILE *, tree, int);
3578 extern void cxx_print_error_function (struct diagnostic_context *,
3580 extern void build_self_reference (void);
3581 extern int same_signature_p (tree, tree);
3582 extern void warn_hidden (tree);
3583 extern void maybe_add_class_template_decl_list (tree, tree, int);
3584 extern tree get_enclosing_class (tree);
3585 extern void unreverse_member_declarations (tree);
3586 extern void invalidate_class_lookup_cache (void);
3587 extern void maybe_note_name_used_in_class (tree, tree);
3588 extern void note_name_declared_in_class (tree, tree);
3589 extern tree get_vtbl_decl_for_binfo (tree);
3590 extern tree get_vtt_name (tree);
3591 extern tree get_primary_binfo (tree);
3592 extern void debug_class (tree);
3593 extern void debug_thunks (tree);
3596 extern tree convert_to_reference (tree, tree, int, int, tree);
3597 extern tree convert_from_reference (tree);
3598 extern tree convert_lvalue (tree, tree);
3599 extern tree force_rvalue (tree);
3600 extern tree ocp_convert (tree, tree, int, int);
3601 extern tree cp_convert (tree, tree);
3602 extern tree convert_to_void (tree, const char */*implicit context*/);
3603 extern tree convert_force (tree, tree, int);
3604 extern tree build_type_conversion (tree, tree);
3605 extern tree build_expr_type_conversion (int, tree, bool);
3606 extern tree type_promotes_to (tree);
3607 extern tree perform_qualification_conversions (tree, tree);
3608 extern void clone_function_decl (tree, int);
3609 extern void adjust_clone_args (tree);
3612 extern void insert_block (tree);
3613 extern void set_block (tree);
3614 extern tree pushdecl (tree);
3615 extern void cxx_init_decl_processing (void);
3616 enum cp_tree_node_structure_enum cp_tree_node_structure
3617 (union lang_tree_node *);
3618 extern bool cxx_mark_addressable (tree);
3619 extern void cxx_push_function_context (struct function *);
3620 extern void cxx_pop_function_context (struct function *);
3621 extern void cxx_mark_function_context (struct function *);
3622 extern void maybe_push_cleanup_level (tree);
3623 extern void finish_scope (void);
3624 extern void delete_block (tree);
3625 extern void add_block_current_level (tree);
3626 extern void push_switch (tree);
3627 extern void pop_switch (void);
3628 extern void pushtag (tree, tree, int);
3629 extern tree make_anon_name (void);
3630 extern void clear_anon_tags (void);
3631 extern int decls_match (tree, tree);
3632 extern tree duplicate_decls (tree, tree);
3633 extern tree pushdecl_top_level (tree);
3634 extern tree pushdecl_top_level_and_finish (tree, tree);
3635 extern tree push_using_decl (tree, tree);
3636 extern tree declare_local_label (tree);
3637 extern tree define_label (location_t, tree);
3638 extern void check_goto (tree);
3639 extern void define_case_label (void);
3640 extern tree make_typename_type (tree, tree, tsubst_flags_t);
3641 extern tree make_unbound_class_template (tree, tree, tsubst_flags_t);
3642 extern tree check_for_out_of_scope_variable (tree);
3643 extern tree build_library_fn (tree, tree);
3644 extern tree build_library_fn_ptr (const char *, tree);
3645 extern tree build_cp_library_fn_ptr (const char *, tree);
3646 extern tree push_library_fn (tree, tree);
3647 extern tree push_void_library_fn (tree, tree);
3648 extern tree push_throw_library_fn (tree, tree);
3649 extern int init_type_desc (void);
3650 extern tree check_tag_decl (tree);
3651 extern tree shadow_tag (tree);
3652 extern tree groktypename (tree);
3653 extern tree start_decl (tree, tree, int, tree, tree);
3654 extern void start_decl_1 (tree);
3655 extern void cp_finish_decl (tree, tree, tree, int);
3656 extern void finish_decl (tree, tree, tree);
3657 extern void maybe_inject_for_scope_var (tree);
3658 extern tree start_handler_parms (tree, tree);
3659 extern int complete_array_type (tree, tree, int);
3660 extern tree build_ptrmemfunc_type (tree);
3661 extern tree build_ptrmem_type (tree, tree);
3662 /* the grokdeclarator prototype is in decl.h */
3663 extern int copy_fn_p (tree);
3664 extern tree get_scope_of_declarator (tree);
3665 extern void grok_special_member_properties (tree);
3666 extern int grok_ctor_properties (tree, tree);
3667 extern bool grok_op_properties (tree, int, bool);
3668 extern tree xref_tag (enum tag_types, tree, bool, bool);
3669 extern tree xref_tag_from_type (tree, tree, int);
3670 extern void xref_basetypes (tree, tree);
3671 extern tree start_enum (tree);
3672 extern void finish_enum (tree);
3673 extern void build_enumerator (tree, tree, tree);
3674 extern int start_function (tree, tree, tree, int);
3675 extern tree begin_function_body (void);
3676 extern void finish_function_body (tree);
3677 extern tree finish_function (int);
3678 extern tree start_method (tree, tree, tree);
3679 extern tree finish_method (tree);
3680 extern void maybe_register_incomplete_var (tree);
3681 extern void complete_vars (tree);
3682 extern void finish_stmt (void);
3683 extern void print_other_binding_stack (struct cp_binding_level *);
3684 extern void revert_static_member_fn (tree);
3685 extern void fixup_anonymous_aggr (tree);
3686 extern int check_static_variable_definition (tree, tree);
3687 extern tree compute_array_index_type (tree, tree);
3688 extern tree check_default_argument (tree, tree);
3689 extern int vtable_decl_p (tree, void *);
3690 extern int vtype_decl_p (tree, void *);
3691 extern int sigtable_decl_p (tree, void *);
3692 typedef bool (*walk_globals_pred) (tree, void *);
3693 typedef bool (*walk_globals_fn) (tree *, void *);
3694 extern bool walk_globals (walk_globals_pred, walk_globals_fn, void *);
3695 extern bool walk_vtables (walk_globals_pred, walk_globals_fn, void *);
3696 typedef int (*walk_namespaces_fn) (tree, void *);
3697 extern int walk_namespaces (walk_namespaces_fn,
3699 extern int wrapup_globals_for_namespace (tree, void *);
3700 extern tree create_implicit_typedef (tree, tree);
3701 extern tree maybe_push_decl (tree);
3702 extern tree force_target_expr (tree, tree);
3703 extern tree build_target_expr_with_type (tree, tree);
3704 extern int local_variable_p (tree);
3705 extern int nonstatic_local_decl_p (tree);
3706 extern tree declare_global_var (tree, tree);
3707 extern void register_dtor_fn (tree);
3708 extern tmpl_spec_kind current_tmpl_spec_kind (int);
3709 extern tree cp_fname_init (const char *, tree *);
3710 extern tree check_elaborated_type_specifier (enum tag_types, tree, bool);
3711 extern void warn_extern_redeclared_static (tree, tree);
3713 extern bool have_extern_spec;
3716 extern bool check_java_method (tree);
3717 extern int grok_method_quals (tree, tree, tree);
3718 extern void grok_x_components (tree);
3719 extern void maybe_retrofit_in_chrg (tree);
3720 extern void maybe_make_one_only (tree);
3721 extern void grokclassfn (tree, tree, enum overload_flags, tree);
3722 extern tree grok_array_decl (tree, tree);
3723 extern tree delete_sanity (tree, tree, bool, int);
3724 extern tree check_classfn (tree, tree, tree);
3725 extern void check_member_template (tree);
3726 extern tree grokfield (tree, tree, tree, tree, tree);
3727 extern tree grokbitfield (tree, tree, tree);
3728 extern tree groktypefield (tree, tree);
3729 extern void cplus_decl_attributes (tree *, tree, int);
3730 extern void defer_fn (tree);
3731 extern void finish_anon_union (tree);
3732 extern tree finish_table (tree, tree, tree, int);
3733 extern tree coerce_new_type (tree);
3734 extern tree coerce_delete_type (tree);
3735 extern void comdat_linkage (tree);
3736 extern void import_export_vtable (tree, tree, int);
3737 extern void import_export_decl (tree);
3738 extern void import_export_tinfo (tree, tree, bool);
3739 extern tree build_cleanup (tree);
3740 extern tree build_offset_ref_call_from_tree (tree, tree);
3741 extern void check_default_args (tree);
3742 extern void mark_used (tree);
3743 extern void finish_static_data_member_decl (tree, tree, tree, int);
3744 extern tree cp_build_parm_decl (tree, tree);
3745 extern tree build_artificial_parm (tree, tree);
3746 extern tree get_guard (tree);
3747 extern tree get_guard_cond (tree);
3748 extern tree set_guard (tree);
3749 extern tree cxx_callgraph_analyze_expr (tree *, int *, tree);
3751 /* XXX Not i18n clean. */
3752 #define cp_deprecated(STR) \
3754 if (warn_deprecated) \
3755 warning ("%s is deprecated, please see the documentation for details", \
3760 extern void init_error (void);
3761 extern const char *type_as_string (tree, int);
3762 extern const char *decl_as_string (tree, int);
3763 extern const char *expr_as_string (tree, int);
3764 extern const char *context_as_string (tree, int);
3765 extern const char *lang_decl_name (tree, int);
3766 extern const char *language_to_string (enum languages);
3767 extern void print_instantiation_context (void);
3770 extern void init_exception_processing (void);
3771 extern tree expand_start_catch_block (tree);
3772 extern void expand_end_catch_block (void);
3773 extern void expand_builtin_throw (void);
3774 extern void expand_eh_spec_block (tree);
3775 extern void expand_exception_blocks (void);
3776 extern tree build_exc_ptr (void);
3777 extern tree build_throw (tree);
3778 extern void mark_all_runtime_matches (void);
3779 extern int nothrow_libfn_p (tree);
3780 extern void check_handlers (tree);
3781 extern void choose_personality_routine (enum languages);
3782 extern tree eh_type_info (tree);
3785 extern rtx cxx_expand_expr (tree, rtx,
3788 extern tree cplus_expand_constant (tree);
3791 extern int is_friend (tree, tree);
3792 extern void make_friend_class (tree, tree, bool);
3793 extern void add_friend (tree, tree, bool);
3794 extern tree do_friend (tree, tree, tree, tree, enum overload_flags, tree, int);
3797 extern tree expand_member_init (tree);
3798 extern void emit_mem_initializers (tree);
3799 extern tree build_aggr_init (tree, tree, int);
3800 extern tree build_init (tree, tree, int);
3801 extern int is_aggr_type (tree, int);
3802 extern tree get_aggr_from_typedef (tree, int);
3803 extern tree get_type_value (tree);
3804 extern tree build_zero_init (tree, tree, bool);
3805 extern tree build_offset_ref (tree, tree, bool);
3806 extern tree build_new (tree, tree, tree, int);
3807 extern tree build_vec_init (tree, tree, tree, int);
3808 extern tree build_x_delete (tree, int, tree);
3809 extern tree build_delete (tree, tree, special_function_kind, int, int);
3810 extern void push_base_cleanups (void);
3811 extern tree build_vbase_delete (tree, tree);
3812 extern tree build_vec_delete (tree, tree, special_function_kind, int);
3813 extern tree create_temporary_var (tree);
3814 extern void initialize_vtbl_ptrs (tree);
3815 extern tree build_java_class_ref (tree);
3820 extern void cxx_dup_lang_specific_decl (tree);
3821 extern tree make_pointer_declarator (tree, tree);
3822 extern tree make_reference_declarator (tree, tree);
3823 extern tree make_call_declarator (tree, tree, tree, tree);
3824 extern void set_quals_and_spec (tree, tree, tree);
3825 extern void print_parse_statistics (void);
3826 extern void do_pending_inlines (void);
3827 extern void yyungetc (int, int);
3828 extern void snarf_method (tree);
3830 extern void see_typename (void);
3831 extern tree unqualified_name_lookup_error (tree);
3832 extern tree unqualified_fn_lookup_error (tree);
3833 extern tree build_lang_decl (enum tree_code, tree, tree);
3834 extern void retrofit_lang_decl (tree);
3835 extern tree copy_decl (tree);
3836 extern tree copy_type (tree);
3837 extern tree cxx_make_type (enum tree_code);
3838 extern tree make_aggr_type (enum tree_code);
3839 extern void yyerror (const char *);
3840 extern void yyhook (int);
3841 extern int cp_type_qual_from_rid (tree);
3842 extern bool cxx_init (void);
3843 extern void cxx_finish (void);
3846 extern void init_method (void);
3847 extern void set_mangled_name_for_decl (tree);
3848 extern tree make_thunk (tree, bool, tree, tree);
3849 extern void finish_thunk (tree);
3850 extern void use_thunk (tree, bool);
3851 extern void synthesize_method (tree);
3852 extern tree implicitly_declare_fn (special_function_kind, tree, bool);
3853 extern tree skip_artificial_parms_for (tree, tree);
3856 extern bool calls_setjmp_p (tree);
3857 extern bool maybe_clone_body (tree);
3860 extern void check_template_shadow (tree);
3861 extern tree get_innermost_template_args (tree, int);
3862 extern void maybe_begin_member_template_processing (tree);
3863 extern void maybe_end_member_template_processing (void);
3864 extern tree finish_member_template_decl (tree);
3865 extern void begin_template_parm_list (void);
3866 extern void begin_specialization (void);
3867 extern void reset_specialization (void);
3868 extern void end_specialization (void);
3869 extern void begin_explicit_instantiation (void);
3870 extern void end_explicit_instantiation (void);
3871 extern tree check_explicit_specialization (tree, tree, int, int);
3872 extern tree process_template_parm (tree, tree);
3873 extern tree end_template_parm_list (tree);
3874 extern void end_template_decl (void);
3875 extern tree current_template_args (void);
3876 extern tree push_template_decl (tree);
3877 extern tree push_template_decl_real (tree, int);
3878 extern void redeclare_class_template (tree, tree);
3879 extern tree lookup_template_class (tree, tree, tree, tree, int, tsubst_flags_t);
3880 extern tree lookup_template_function (tree, tree);
3881 extern int uses_template_parms (tree);
3882 extern int uses_template_parms_level (tree, int);
3883 extern tree instantiate_class_template (tree);
3884 extern tree instantiate_template (tree, tree, tsubst_flags_t);
3885 extern int fn_type_unification (tree, tree, tree, tree, tree, unification_kind_t, int);
3886 extern tree tinst_for_decl (void);
3887 extern void mark_decl_instantiated (tree, int);
3888 extern int more_specialized (tree, tree, int, int);
3889 extern void mark_class_instantiated (tree, int);
3890 extern void do_decl_instantiation (tree, tree);
3891 extern void do_type_instantiation (tree, tree, tsubst_flags_t);
3892 extern tree instantiate_decl (tree, int);
3893 extern int push_tinst_level (tree);
3894 extern void pop_tinst_level (void);
3895 extern int more_specialized_class (tree, tree, tree);
3896 extern int is_member_template (tree);
3897 extern int comp_template_parms (tree, tree);
3898 extern int template_class_depth (tree);
3899 extern int is_specialization_of (tree, tree);
3900 extern bool is_specialization_of_friend (tree, tree);
3901 extern int comp_template_args (tree, tree);
3902 extern void maybe_process_partial_specialization (tree);
3903 extern void maybe_check_template_type (tree);
3904 extern tree most_specialized_instantiation (tree);
3905 extern void print_candidates (tree);
3906 extern int instantiate_pending_templates (void);
3907 extern tree tsubst_default_argument (tree, tree, tree);
3908 extern tree tsubst_copy_and_build (tree, tree, tsubst_flags_t, tree, bool);
3909 extern tree most_general_template (tree);
3910 extern tree get_mostly_instantiated_function_type (tree);
3911 extern int problematic_instantiation_changed (void);
3912 extern void record_last_problematic_instantiation (void);
3913 extern tree current_instantiation (void);
3914 extern tree maybe_get_template_decl_from_type_decl (tree);
3915 extern int processing_template_parmlist;
3916 extern bool dependent_type_p (tree);
3917 extern bool any_dependent_template_arguments_p (tree);
3918 extern bool dependent_template_p (tree);
3919 extern bool dependent_template_id_p (tree, tree);
3920 extern bool type_dependent_expression_p (tree);
3921 extern bool any_type_dependent_arguments_p (tree);
3922 extern bool value_dependent_expression_p (tree);
3923 extern tree resolve_typename_type (tree, bool);
3924 extern tree template_for_substitution (tree);
3925 extern tree build_non_dependent_expr (tree);
3926 extern tree build_non_dependent_args (tree);
3927 extern bool reregister_specialization (tree, tree, tree);
3928 extern tree fold_non_dependent_expr (tree);
3931 extern void repo_template_used (tree);
3932 extern void repo_template_instantiated (tree, bool);
3933 extern void init_repo (const char *);
3934 extern void finish_repo (void);
3937 /* A varray of all tinfo decls that haven't been emitted yet. */
3938 extern GTY(()) varray_type unemitted_tinfo_decls;
3940 extern void init_rtti_processing (void);
3941 extern tree build_typeid (tree);
3942 extern tree get_tinfo_decl (tree);
3943 extern tree get_typeid (tree);
3944 extern tree build_dynamic_cast (tree, tree);
3945 extern void emit_support_tinfos (void);
3946 extern bool emit_tinfo_decl (tree);
3949 extern bool accessible_base_p (tree, tree);
3950 extern tree lookup_base (tree, tree, base_access, base_kind *);
3951 extern int types_overlap_p (tree, tree);
3952 extern tree get_dynamic_cast_base_type (tree, tree);
3953 extern int accessible_p (tree, tree);
3954 extern tree lookup_field_1 (tree, tree, bool);
3955 extern tree lookup_field (tree, tree, int, bool);
3956 extern int lookup_fnfields_1 (tree, tree);
3957 extern tree lookup_fnfields (tree, tree, int);
3958 extern tree lookup_member (tree, tree, int, bool);
3959 extern int look_for_overrides (tree, tree);
3960 extern void get_pure_virtuals (tree);
3961 extern void maybe_suppress_debug_info (tree);
3962 extern void note_debug_info_needed (tree);
3963 extern void push_class_decls (tree);
3964 extern void pop_class_decls (void);
3965 extern void unuse_fields (tree);
3966 extern void print_search_statistics (void);
3967 extern void init_search_processing (void);
3968 extern void reinit_search_statistics (void);
3969 extern tree current_scope (void);
3970 extern int at_function_scope_p (void);
3971 extern bool at_class_scope_p (void);
3972 extern bool at_namespace_scope_p (void);
3973 extern tree context_for_name_lookup (tree);
3974 extern tree lookup_conversions (tree);
3975 extern tree binfo_for_vtable (tree);
3976 extern tree binfo_from_vbase (tree);
3977 extern tree look_for_overrides_here (tree, tree);
3978 extern int check_final_overrider (tree, tree);
3979 extern tree dfs_walk (tree,
3980 tree (*) (tree, void *),
3981 tree (*) (tree, int, void *),
3983 extern tree dfs_walk_real (tree,
3984 tree (*) (tree, void *),
3985 tree (*) (tree, void *),
3986 tree (*) (tree, int, void *),
3988 extern tree dfs_unmark (tree, void *);
3989 extern tree markedp (tree, int, void *);
3990 extern tree unmarkedp (tree, int, void *);
3991 extern tree binfo_via_virtual (tree, tree);
3992 extern tree build_baselink (tree, tree, tree, tree);
3993 extern tree adjust_result_of_qualified_name_lookup
3995 extern tree copied_binfo (tree, tree);
3996 extern tree original_binfo (tree, tree);
3998 /* in semantics.c */
3999 extern void push_deferring_access_checks (deferring_kind);
4000 extern void resume_deferring_access_checks (void);
4001 extern void stop_deferring_access_checks (void);
4002 extern void pop_deferring_access_checks (void);
4003 extern tree get_deferred_access_checks (void);
4004 extern void pop_to_parent_deferring_access_checks (void);
4005 extern void perform_deferred_access_checks (void);
4006 extern void perform_or_defer_access_check (tree, tree);
4007 extern void init_cp_semantics (void);
4008 extern tree finish_expr_stmt (tree);
4009 extern tree begin_if_stmt (void);
4010 extern void finish_if_stmt_cond (tree, tree);
4011 extern tree finish_then_clause (tree);
4012 extern void begin_else_clause (void);
4013 extern void finish_else_clause (tree);
4014 extern void finish_if_stmt (void);
4015 extern tree begin_while_stmt (void);
4016 extern void finish_while_stmt_cond (tree, tree);
4017 extern void finish_while_stmt (tree);
4018 extern tree begin_do_stmt (void);
4019 extern void finish_do_body (tree);
4020 extern void finish_do_stmt (tree, tree);
4021 extern tree finish_return_stmt (tree);
4022 extern tree begin_for_stmt (void);
4023 extern void finish_for_init_stmt (tree);
4024 extern void finish_for_cond (tree, tree);
4025 extern void finish_for_expr (tree, tree);
4026 extern void finish_for_stmt (tree);
4027 extern tree finish_break_stmt (void);
4028 extern tree finish_continue_stmt (void);
4029 extern tree begin_switch_stmt (void);
4030 extern void finish_switch_cond (tree, tree);
4031 extern void finish_switch_stmt (tree);
4032 extern tree finish_case_label (tree, tree);
4033 extern tree finish_goto_stmt (tree);
4034 extern tree begin_try_block (void);
4035 extern void finish_try_block (tree);
4036 extern tree begin_eh_spec_block (void);
4037 extern void finish_eh_spec_block (tree, tree);
4038 extern void finish_handler_sequence (tree);
4039 extern tree begin_function_try_block (void);
4040 extern void finish_function_try_block (tree);
4041 extern void finish_function_handler_sequence (tree);
4042 extern void finish_cleanup_try_block (tree);
4043 extern tree begin_handler (void);
4044 extern void finish_handler_parms (tree, tree);
4045 extern void begin_catch_block (tree);
4046 extern void finish_handler (tree);
4047 extern void finish_cleanup (tree, tree);
4048 extern tree begin_compound_stmt (bool);
4049 extern tree finish_compound_stmt (tree);
4050 extern tree finish_asm_stmt (tree, tree, tree, tree, tree);
4051 extern tree finish_label_stmt (tree);
4052 extern void finish_label_decl (tree);
4053 extern void finish_subobject (tree);
4054 extern tree finish_parenthesized_expr (tree);
4055 extern tree finish_non_static_data_member (tree, tree, tree);
4056 extern tree begin_stmt_expr (void);
4057 extern tree finish_stmt_expr_expr (tree);
4058 extern tree finish_stmt_expr (tree, bool);
4059 extern tree perform_koenig_lookup (tree, tree);
4060 extern tree finish_call_expr (tree, tree, bool, bool);
4061 extern tree finish_increment_expr (tree, enum tree_code);
4062 extern tree finish_this_expr (void);
4063 extern tree finish_pseudo_destructor_expr (tree, tree, tree);
4064 extern tree finish_unary_op_expr (enum tree_code, tree);
4065 extern tree finish_compound_literal (tree, tree);
4066 extern tree finish_fname (tree);
4067 extern int begin_function_definition (tree, tree, tree);
4068 extern void finish_translation_unit (void);
4069 extern tree finish_template_type_parm (tree, tree);
4070 extern tree finish_template_template_parm (tree, tree);
4071 extern tree finish_parmlist (tree, int);
4072 extern tree begin_class_definition (tree);
4073 extern void finish_default_args (void);
4074 extern tree finish_member_class_template (tree);
4075 extern void finish_template_decl (tree);
4076 extern tree finish_template_type (tree, tree, int);
4077 extern tree finish_base_specifier (tree, tree, bool);
4078 extern void finish_member_declaration (tree);
4079 extern void check_multiple_declarators (void);
4080 extern void qualified_name_lookup_error (tree, tree);
4081 extern tree finish_id_expression (tree, tree, tree,
4082 cp_id_kind *, tree *,
4085 extern tree finish_typeof (tree);
4086 extern void finish_decl_cleanup (tree, tree);
4087 extern void finish_eh_cleanup (tree);
4088 extern void expand_body (tree);
4089 extern void cxx_expand_function_start (void);
4090 extern tree nullify_returns_r (tree *, int *, void *);
4091 extern void do_pushlevel (scope_kind);
4092 extern tree do_poplevel (void);
4093 extern void finish_mem_initializers (tree);
4094 extern void setup_vtbl_ptr (tree, tree);
4095 extern void clear_out_block (void);
4096 extern tree check_template_template_default_arg (tree);
4097 extern void expand_or_defer_fn (tree);
4098 extern void check_accessibility_of_qualified_id (tree, tree, tree);
4099 extern tree finish_qualified_id_expr (tree, tree, bool, bool);
4100 extern void simplify_aggr_init_expr (tree *);
4103 extern void lang_check_failed (const char *, int,
4105 extern tree stabilize_expr (tree, tree *);
4106 extern tree cxx_unsave_expr_now (tree);
4107 extern tree cxx_maybe_build_cleanup (tree);
4108 extern void init_tree (void);
4109 extern int pod_type_p (tree);
4110 extern int zero_init_p (tree);
4111 extern tree canonical_type_variant (tree);
4112 extern tree copy_base_binfos (tree, tree, tree);
4113 extern int member_p (tree);
4114 extern cp_lvalue_kind real_lvalue_p (tree);
4115 extern tree build_min (enum tree_code, tree, ...);
4116 extern tree build_min_nt (enum tree_code, ...);
4117 extern tree build_min_non_dep (enum tree_code, tree, ...);
4118 extern tree build_cplus_new (tree, tree);
4119 extern tree get_target_expr (tree);
4120 extern tree build_cplus_staticfn_type (tree, tree, tree);
4121 extern tree build_cplus_array_type (tree, tree);
4122 extern tree hash_tree_cons (tree, tree, tree);
4123 extern tree hash_tree_chain (tree, tree);
4124 extern tree hash_chainon (tree, tree);
4125 extern tree make_binfo (tree, tree, tree, tree);
4126 extern int count_functions (tree);
4127 extern int is_overloaded_fn (tree);
4128 extern tree get_first_fn (tree);
4129 extern int bound_pmf_p (tree);
4130 extern tree ovl_cons (tree, tree);
4131 extern tree build_overload (tree, tree);
4132 extern tree function_arg_chain (tree);
4133 extern int promotes_to_aggr_type (tree, enum tree_code);
4134 extern const char *cxx_printable_name (tree, int);
4135 extern tree build_exception_variant (tree, tree);
4136 extern tree bind_template_template_parm (tree, tree);
4137 extern tree array_type_nelts_total (tree);
4138 extern tree array_type_nelts_top (tree);
4139 extern tree break_out_target_exprs (tree);
4140 extern tree get_type_decl (tree);
4141 extern tree vec_binfo_member (tree, tree);
4142 extern tree decl_namespace_context (tree);
4143 extern tree lvalue_type (tree);
4144 extern tree error_type (tree);
4145 extern int varargs_function_p (tree);
4146 extern int really_overloaded_fn (tree);
4147 extern bool cp_tree_equal (tree, tree);
4148 extern tree no_linkage_check (tree);
4149 extern void debug_binfo (tree);
4150 extern tree build_dummy_object (tree);
4151 extern tree maybe_dummy_object (tree, tree *);
4152 extern int is_dummy_object (tree);
4153 extern const struct attribute_spec cxx_attribute_table[];
4154 extern tree make_ptrmem_cst (tree, tree);
4155 extern tree cp_build_type_attribute_variant (tree, tree);
4156 extern tree cp_build_qualified_type_real (tree, int, tsubst_flags_t);
4157 #define cp_build_qualified_type(TYPE, QUALS) \
4158 cp_build_qualified_type_real ((TYPE), (QUALS), tf_error | tf_warning)
4159 extern tree build_shared_int_cst (int);
4160 extern special_function_kind special_function_p (tree);
4161 extern bool name_p (tree);
4162 extern int count_trees (tree);
4163 extern int char_type_p (tree);
4164 extern void verify_stmt_tree (tree);
4165 extern tree find_tree (tree, tree);
4166 extern linkage_kind decl_linkage (tree);
4167 extern tree cp_walk_subtrees (tree*, int*, walk_tree_fn,
4169 extern int cp_cannot_inline_tree_fn (tree*);
4170 extern tree cp_add_pending_fn_decls (void*,tree);
4171 extern int cp_is_overload_p (tree);
4172 extern int cp_auto_var_in_fn_p (tree,tree);
4173 extern tree cp_copy_res_decl_for_inlining (tree, tree, tree, void*,
4175 extern void cp_update_decl_after_saving (tree, void *);
4178 extern int string_conv_p (tree, tree, int);
4179 extern tree cp_truthvalue_conversion (tree);
4180 extern tree condition_conversion (tree);
4181 extern tree target_type (tree);
4182 extern tree require_complete_type (tree);
4183 extern tree complete_type (tree);
4184 extern tree complete_type_or_diagnostic (tree, tree, int);
4185 #define complete_type_or_else(T,V) (complete_type_or_diagnostic ((T), (V), 0))
4186 extern int type_unknown_p (tree);
4187 extern tree commonparms (tree, tree);
4188 extern tree original_type (tree);
4189 extern bool comp_except_specs (tree, tree, bool);
4190 extern bool comptypes (tree, tree, int);
4191 extern bool compparms (tree, tree);
4192 extern int comp_cv_qualification (tree, tree);
4193 extern int comp_cv_qual_signature (tree, tree);
4194 extern tree cxx_sizeof_or_alignof_expr (tree, enum tree_code);
4195 extern tree cxx_sizeof_or_alignof_type (tree, enum tree_code, bool);
4196 #define cxx_sizeof_nowarn(T) cxx_sizeof_or_alignof_type (T, SIZEOF_EXPR, false)
4197 extern tree inline_conversion (tree);
4198 extern tree decay_conversion (tree);
4199 extern tree perform_integral_promotions (tree);
4200 extern tree build_class_member_access_expr (tree, tree, tree, bool);
4201 extern tree finish_class_member_access_expr (tree, tree);
4202 extern tree build_x_indirect_ref (tree, const char *);
4203 extern tree build_indirect_ref (tree, const char *);
4204 extern tree build_array_ref (tree, tree);
4205 extern tree get_member_function_from_ptrfunc (tree *, tree);
4206 extern tree convert_arguments (tree, tree, tree, int);
4207 extern tree build_x_binary_op (enum tree_code, tree, tree,
4209 extern tree build_x_unary_op (enum tree_code, tree);
4210 extern tree unary_complex_lvalue (enum tree_code, tree);
4211 extern tree build_x_conditional_expr (tree, tree, tree);
4212 extern tree build_x_compound_expr_from_list (tree, const char *);
4213 extern tree build_x_compound_expr (tree, tree);
4214 extern tree build_compound_expr (tree, tree);
4215 extern tree build_static_cast (tree, tree);
4216 extern tree build_reinterpret_cast (tree, tree);
4217 extern tree build_const_cast (tree, tree);
4218 extern tree build_c_cast (tree, tree);
4219 extern tree build_x_modify_expr (tree, enum tree_code, tree);
4220 extern tree build_modify_expr (tree, enum tree_code, tree);
4221 extern tree dubious_conversion_warnings (tree, tree, const char *, tree, int);
4222 extern tree convert_for_initialization (tree, tree, tree, int, const char *, tree, int);
4223 extern int comp_ptr_ttypes (tree, tree);
4224 extern int ptr_reasonably_similar (tree, tree);
4225 extern tree build_ptrmemfunc (tree, tree, int);
4226 extern int cp_type_quals (tree);
4227 extern bool cp_has_mutable_p (tree);
4228 extern bool at_least_as_qualified_p (tree, tree);
4229 extern bool more_qualified_p (tree, tree);
4230 extern tree build_ptrmemfunc1 (tree, tree, tree);
4231 extern void expand_ptrmemfunc_cst (tree, tree *, tree *);
4232 extern tree pfn_from_ptrmemfunc (tree);
4233 extern tree type_after_usual_arithmetic_conversions (tree, tree);
4234 extern tree composite_pointer_type (tree, tree, tree, tree,
4236 extern tree merge_types (tree, tree);
4237 extern tree check_return_expr (tree);
4238 #define cp_build_binary_op(code, arg1, arg2) \
4239 build_binary_op(code, arg1, arg2, 1)
4240 #define cxx_sizeof(T) cxx_sizeof_or_alignof_type (T, SIZEOF_EXPR, true)
4241 #define cxx_alignof(T) cxx_sizeof_or_alignof_type (T, ALIGNOF_EXPR, true)
4242 extern tree build_ptrmemfunc_access_expr (tree, tree);
4243 extern tree build_address (tree);
4244 extern tree build_nop (tree, tree);
4245 extern tree non_reference (tree);
4248 extern void require_complete_eh_spec_types (tree, tree);
4249 extern void cxx_incomplete_type_diagnostic (tree, tree, int);
4250 #undef cxx_incomplete_type_error
4251 extern void cxx_incomplete_type_error (tree, tree);
4252 #define cxx_incomplete_type_error(V,T) \
4253 (cxx_incomplete_type_diagnostic ((V), (T), 0))
4254 extern tree error_not_base_type (tree, tree);
4255 extern tree binfo_or_else (tree, tree);
4256 extern void readonly_error (tree, const char *, int);
4257 extern int abstract_virtuals_error (tree, tree);
4259 extern tree store_init_value (tree, tree);
4260 extern tree digest_init (tree, tree, tree *);
4261 extern tree build_scoped_ref (tree, tree, tree *);
4262 extern tree build_x_arrow (tree);
4263 extern tree build_m_component_ref (tree, tree);
4264 extern tree build_functional_cast (tree, tree);
4265 extern tree add_exception_specifier (tree, tree, int);
4266 extern tree merge_exception_specifiers (tree, tree);
4269 extern void init_mangle (void);
4270 extern void mangle_decl (tree);
4271 extern const char *mangle_type_string (tree);
4272 extern tree mangle_type (tree);
4273 extern tree mangle_typeinfo_for_type (tree);
4274 extern tree mangle_typeinfo_string_for_type (tree);
4275 extern tree mangle_vtbl_for_type (tree);
4276 extern tree mangle_vtt_for_type (tree);
4277 extern tree mangle_ctor_vtbl_for_type (tree, tree);
4278 extern tree mangle_thunk (tree, int, tree, tree);
4279 extern tree mangle_conv_op_name_for_type (tree);
4280 extern tree mangle_guard_variable (tree);
4281 extern tree mangle_ref_init_variable (tree);
4284 extern bool cp_dump_tree (void *, tree);
4288 /* In order for the format checking to accept the C++ frontend
4289 diagnostic framework extensions, you must include this file before
4290 toplev.h, not after. */
4291 #define GCC_DIAG_STYLE __gcc_cxxdiag__
4292 #if GCC_VERSION >= 3004
4293 #define ATTRIBUTE_GCC_CXXDIAG(m, n) __attribute__ ((__format__ (GCC_DIAG_STYLE, m, n))) ATTRIBUTE_NONNULL(m)
4295 #define ATTRIBUTE_GCC_CXXDIAG(m, n) ATTRIBUTE_NONNULL(m)
4298 extern void cp_error_at (const char *, ...) ATTRIBUTE_GCC_CXXDIAG(1, 2);
4299 extern void cp_warning_at (const char *, ...) ATTRIBUTE_GCC_CXXDIAG(1, 2);
4300 extern void cp_pedwarn_at (const char *, ...) ATTRIBUTE_GCC_CXXDIAG(1, 2);
4302 #endif /* ! GCC_CP_TREE_H */