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 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 LOOKUP_EXPR_GLOBAL (in LOOKUP_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 1: IDENTIFIER_VIRTUAL_P.
50 TI_PENDING_TEMPLATE_FLAG.
51 TEMPLATE_PARMS_FOR_INLINE.
52 DELETE_EXPR_USE_VEC (in DELETE_EXPR).
53 (TREE_CALLS_NEW) (in _EXPR or _REF) (commented-out).
54 TYPE_BASE_CONVS_MAY_REQUIRE_CODE_P (in _TYPE).
55 ICS_ELLIPSIS_FLAG (in _CONV)
56 BINFO_DEPENDENT_BASE_P (in BINFO)
57 DECL_INITIALIZED_P (in VAR_DECL)
58 2: IDENTIFIER_OPNAME_P.
59 TYPE_POLYMORPHIC_P (in _TYPE)
60 ICS_THIS_FLAG (in _CONV)
61 BINFO_LOST_PRIMARY_P (in BINFO)
62 TREE_PARMLIST (in TREE_LIST)
63 3: TYPE_USES_VIRTUAL_BASECLASSES (in a class TYPE).
64 BINFO_VTABLE_PATH_MARKED.
65 BINFO_PUSHDECLS_MARKED.
66 (TREE_REFERENCE_EXPR) (in NON_LVALUE_EXPR) (commented-out).
67 ICS_BAD_FLAG (in _CONV)
68 FN_TRY_BLOCK_P (in TRY_BLOCK)
69 IDENTIFIER_CTOR_OR_DTOR_P (in IDENTIFIER_NODE)
70 4: BINFO_NEW_VTABLE_MARKED.
71 TREE_HAS_CONSTRUCTOR (in INDIRECT_REF, SAVE_EXPR, CONSTRUCTOR,
73 NEED_TEMPORARY_P (in REF_BIND, BASE_CONV)
74 IDENTIFIER_TYPENAME_P (in IDENTIFIER_NODE)
75 5: C_IS_RESERVED_WORD (in IDENTIFIER_NODE)
76 DECL_VTABLE_OR_VTT_P (in VAR_DECL)
77 6: For future expansion
79 Usage of TYPE_LANG_FLAG_?:
81 1: TYPE_HAS_CONSTRUCTOR.
82 2: TYPE_HAS_DESTRUCTOR.
84 4: TYPE_HAS_NONTRIVIAL_DESTRUCTOR
86 6: TYPE_DEPENDENT_P_VALID
88 Usage of DECL_LANG_FLAG_?:
89 0: DECL_ERROR_REPORTED (in VAR_DECL).
90 DECL_TEMPLATE_PARM_P (in PARM_DECL, CONST_DECL, TYPE_DECL, or TEMPLATE_DECL)
91 DECL_LOCAL_FUNCTION_P (in FUNCTION_DECL)
92 DECL_MUTABLE_P (in FIELD_DECL)
93 1: C_TYPEDEF_EXPLICITLY_SIGNED (in TYPE_DECL).
94 DECL_TEMPLATE_INSTANTIATED (in a VAR_DECL or a FUNCTION_DECL)
95 2: DECL_THIS_EXTERN (in VAR_DECL or FUNCTION_DECL).
96 DECL_IMPLICIT_TYPEDEF_P (in a TYPE_DECL)
98 4: DECL_C_BIT_FIELD (in a FIELD_DECL)
99 DECL_VAR_MARKED_P (in a VAR_DECL)
100 5: DECL_INTERFACE_KNOWN.
101 6: DECL_THIS_STATIC (in VAR_DECL or FUNCTION_DECL).
102 7: DECL_DEAD_FOR_LOCAL (in VAR_DECL).
103 DECL_THUNK_P (in a member FUNCTION_DECL)
105 Usage of language-independent fields in a language-dependent manner:
108 This field is BINFO_INDIRECT_PRIMARY_P in a BINFO.
111 This field is used by TYPENAME_TYPEs, TEMPLATE_TYPE_PARMs, and so
112 forth as a substitute for the mark bits provided in `lang_type'.
113 At present, only the six low-order bits are used.
116 For an ENUMERAL_TYPE, this is ENUM_TEMPLATE_INFO.
117 For a FUNCTION_TYPE or METHOD_TYPE, this is TYPE_RAISES_EXCEPTIONS
120 For a binfo, this is a TREE_LIST. There is an entry for each
121 virtual function declared either in BINFO or its direct and
122 indirect primary bases.
124 The BV_DELTA of each node gives the amount by which to adjust the
125 `this' pointer when calling the function. If the method is an
126 overridden version of a base class method, then it is assumed
127 that, prior to adjustment, the this pointer points to an object
130 The BV_VCALL_INDEX of each node, if non-NULL, gives the vtable
131 index of the vcall offset for this entry.
133 The BV_FN is the declaration for the virtual function itself.
136 This is an expression with POINTER_TYPE that gives the value
137 to which the vptr should be initialized. Use get_vtbl_decl_for_binfo
138 to extract the VAR_DECL for the complete vtable.
141 For a VAR_DECL this is DECL_ANON_UNION_ELEMS.
144 This field is NULL for a non-virtual function. For a virtual
145 function, it is eventually set to an INTEGER_CST indicating the
146 index in the vtable at which this function can be found. When
147 a virtual function is declared, but before it is known what
148 function is overridden, this field is the error_mark_node.
150 Temporarily, it may be set to a TREE_LIST whose TREE_VALUE is
151 the virtual function this one overrides, and whose TREE_CHAIN is
152 the old DECL_VINDEX. */
154 /* Language-specific tree checkers. */
156 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
158 #define VAR_OR_FUNCTION_DECL_CHECK(NODE) __extension__ \
159 ({ const tree __t = (NODE); \
160 enum tree_code const __c = TREE_CODE(__t); \
161 if (__c != VAR_DECL && __c != FUNCTION_DECL) \
162 tree_check_failed (__t, VAR_DECL, __FILE__, __LINE__, \
166 #define VAR_FUNCTION_OR_PARM_DECL_CHECK(NODE) __extension__ \
167 ({ const tree __t = (NODE); \
168 enum tree_code const __c = TREE_CODE(__t); \
169 if (__c != VAR_DECL \
170 && __c != FUNCTION_DECL \
171 && __c != PARM_DECL) \
172 tree_check_failed (__t, VAR_DECL, __FILE__, __LINE__, \
176 #define VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK(NODE) __extension__ \
177 ({ const tree __t = (NODE); \
178 enum tree_code const __c = TREE_CODE(__t); \
179 if (__c != VAR_DECL \
180 && __c != FUNCTION_DECL \
181 && __c != TYPE_DECL \
182 && __c != TEMPLATE_DECL) \
183 tree_check_failed (__t, VAR_DECL, __FILE__, __LINE__, \
187 #define RECORD_OR_UNION_TYPE_CHECK(NODE) __extension__ \
188 ({ const tree __t = (NODE); \
189 enum tree_code const __c = TREE_CODE(__t); \
190 if (__c != RECORD_TYPE && __c != UNION_TYPE) \
191 tree_check_failed (__t, RECORD_TYPE, __FILE__, __LINE__, \
195 #define BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK(NODE) __extension__ \
196 ({ const tree __t = (NODE); \
197 enum tree_code const __c = TREE_CODE(__t); \
198 if (__c != BOUND_TEMPLATE_TEMPLATE_PARM) \
199 tree_check_failed (__t, BOUND_TEMPLATE_TEMPLATE_PARM, \
200 __FILE__, __LINE__, __FUNCTION__); \
203 #else /* not ENABLE_TREE_CHECKING, or not gcc */
205 #define VAR_OR_FUNCTION_DECL_CHECK(NODE) (NODE)
206 #define VAR_FUNCTION_OR_PARM_DECL_CHECK(NODE) (NODE)
207 #define VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK(NODE) (NODE)
208 #define RECORD_OR_UNION_TYPE_CHECK(NODE) (NODE)
209 #define BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK(NODE) (NODE)
213 /* Returns TRUE if generated code should match ABI version N or
214 greater is in use. */
216 #define abi_version_at_least(N) \
217 (flag_abi_version == 0 || flag_abi_version >= (N))
220 /* Language-dependent contents of an identifier. */
222 struct lang_identifier GTY(())
224 struct c_common_identifier c_common;
225 cxx_binding *namespace_bindings;
226 cxx_binding *bindings;
228 tree class_template_info;
234 /* In an IDENTIFIER_NODE, nonzero if this identifier is actually a
235 keyword. C_RID_CODE (node) is then the RID_* value of the keyword,
236 and C_RID_YYCODE is the token number wanted by Yacc. */
238 #define C_IS_RESERVED_WORD(ID) TREE_LANG_FLAG_5 (ID)
240 #define LANG_IDENTIFIER_CAST(NODE) \
241 ((struct lang_identifier*)IDENTIFIER_NODE_CHECK (NODE))
243 typedef struct template_parm_index_s GTY(())
245 struct tree_common common;
248 HOST_WIDE_INT orig_level;
250 } template_parm_index;
252 struct ptrmem_cst GTY(())
254 struct tree_common common;
255 /* This isn't used, but the middle-end expects all constants to have
260 typedef struct ptrmem_cst * ptrmem_cst_t;
262 #define IDENTIFIER_GLOBAL_VALUE(NODE) \
263 namespace_binding ((NODE), global_namespace)
264 #define SET_IDENTIFIER_GLOBAL_VALUE(NODE, VAL) \
265 set_namespace_binding ((NODE), global_namespace, (VAL))
266 #define IDENTIFIER_NAMESPACE_VALUE(NODE) \
267 namespace_binding ((NODE), current_namespace)
268 #define SET_IDENTIFIER_NAMESPACE_VALUE(NODE, VAL) \
269 set_namespace_binding ((NODE), current_namespace, (VAL))
271 #define CLEANUP_P(NODE) TREE_LANG_FLAG_0 (TRY_BLOCK_CHECK (NODE))
273 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, in the usual
275 #define same_type_p(TYPE1, TYPE2) \
276 comptypes ((TYPE1), (TYPE2), COMPARE_STRICT)
278 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, ignoring
279 top-level qualifiers. */
280 #define same_type_ignoring_top_level_qualifiers_p(TYPE1, TYPE2) \
281 same_type_p (TYPE_MAIN_VARIANT (TYPE1), TYPE_MAIN_VARIANT (TYPE2))
283 /* Nonzero if we are presently building a statement tree, rather
284 than expanding each statement as we encounter it. */
285 #define building_stmt_tree() (last_tree != NULL_TREE)
287 /* Returns nonzero iff NODE is a declaration for the global function
289 #define DECL_MAIN_P(NODE) \
290 (DECL_EXTERN_C_FUNCTION_P (NODE) \
291 && DECL_NAME (NODE) != NULL_TREE \
292 && MAIN_NAME_P (DECL_NAME (NODE)))
294 /* The overloaded FUNCTION_DECL. */
295 #define OVL_FUNCTION(NODE) \
296 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->function)
297 #define OVL_CHAIN(NODE) TREE_CHAIN (NODE)
298 /* Polymorphic access to FUNCTION and CHAIN. */
299 #define OVL_CURRENT(NODE) \
300 ((TREE_CODE (NODE) == OVERLOAD) ? OVL_FUNCTION (NODE) : (NODE))
301 #define OVL_NEXT(NODE) \
302 ((TREE_CODE (NODE) == OVERLOAD) ? TREE_CHAIN (NODE) : NULL_TREE)
303 /* If set, this was imported in a using declaration.
304 This is not to confuse with being used somewhere, which
305 is not important for this node. */
306 #define OVL_USED(NODE) TREE_USED (NODE)
308 struct tree_overload GTY(())
310 struct tree_common common;
314 /* Returns true iff NODE is a BASELINK. */
315 #define BASELINK_P(NODE) \
316 (TREE_CODE (NODE) == BASELINK)
317 /* The BINFO indicating the base from which the BASELINK_FUNCTIONS came. */
318 #define BASELINK_BINFO(NODE) \
319 (((struct tree_baselink*) BASELINK_CHECK (NODE))->binfo)
320 /* The functions referred to by the BASELINK; either a FUNCTION_DECL,
321 a TEMPLATE_DECL, an OVERLOAD, or a TEMPLATE_ID_EXPR. */
322 #define BASELINK_FUNCTIONS(NODE) \
323 (((struct tree_baselink*) BASELINK_CHECK (NODE))->functions)
324 /* The BINFO in which the search for the functions indicated by this baselink
325 began. This base is used to determine the accessibility of functions
326 selected by overload resolution. */
327 #define BASELINK_ACCESS_BINFO(NODE) \
328 (((struct tree_baselink*) BASELINK_CHECK (NODE))->access_binfo)
329 /* For a type-conversion operator, the BASELINK_OPTYPE indicates the type
330 to which the conversion should occur. This value is important if
331 the BASELINK_FUNCTIONS include a template conversion operator --
332 the BASELINK_OPTYPE can be used to determine what type the user
334 #define BASELINK_OPTYPE(NODE) \
335 (TREE_CHAIN (BASELINK_CHECK (NODE)))
337 struct tree_baselink GTY(())
339 struct tree_common common;
345 #define WRAPPER_ZC(NODE) (((struct tree_wrapper*)WRAPPER_CHECK (NODE))->z_c)
347 struct tree_wrapper GTY(())
349 struct tree_common common;
350 struct z_candidate *z_c;
353 /* The different kinds of ids that we ecounter. */
355 typedef enum cp_id_kind
357 /* Not an id at all. */
359 /* An unqualified-id that is not a template-id. */
360 CP_ID_KIND_UNQUALIFIED,
361 /* An unqualified template-id. */
362 CP_ID_KIND_TEMPLATE_ID,
363 /* A qualified-id. */
367 /* Macros for access to language-specific slots in an identifier. */
369 #define IDENTIFIER_NAMESPACE_BINDINGS(NODE) \
370 (LANG_IDENTIFIER_CAST (NODE)->namespace_bindings)
371 #define IDENTIFIER_TEMPLATE(NODE) \
372 (LANG_IDENTIFIER_CAST (NODE)->class_template_info)
374 /* The IDENTIFIER_BINDING is the innermost cxx_binding for the
375 identifier. It's PREVIOUS is the next outermost binding. Each
376 BINDING_VALUE is a DECL for the associated declaration. Thus,
377 name lookup consists simply of pulling off the node at the front
378 of the list (modulo oddities for looking up the names of types,
379 and such.) You can use BINDING_SCOPE to determine the scope
380 that bound the name. */
381 #define IDENTIFIER_BINDING(NODE) \
382 (LANG_IDENTIFIER_CAST (NODE)->bindings)
384 /* The IDENTIFIER_VALUE is the value of the IDENTIFIER_BINDING, or
385 NULL_TREE if there is no binding. */
386 #define IDENTIFIER_VALUE(NODE) \
387 (IDENTIFIER_BINDING (NODE) ? IDENTIFIER_BINDING (NODE)->value : NULL)
389 /* If IDENTIFIER_CLASS_VALUE is set, then NODE is bound in the current
390 class, and IDENTIFIER_CLASS_VALUE is the value binding. This is
391 just a pointer to the BINDING_VALUE of one of the bindings in the
392 IDENTIFIER_BINDINGs list, so any time that this is non-NULL so is
393 IDENTIFIER_BINDING. */
394 #define IDENTIFIER_CLASS_VALUE(NODE) \
395 (LANG_IDENTIFIER_CAST (NODE)->class_value)
397 /* TREE_TYPE only indicates on local and class scope the current
398 type. For namespace scope, the presence of a type in any namespace
399 is indicated with global_type_node, and the real type behind must
400 be found through lookup. */
401 #define IDENTIFIER_TYPE_VALUE(NODE) identifier_type_value (NODE)
402 #define REAL_IDENTIFIER_TYPE_VALUE(NODE) TREE_TYPE (NODE)
403 #define SET_IDENTIFIER_TYPE_VALUE(NODE,TYPE) (TREE_TYPE (NODE) = (TYPE))
404 #define IDENTIFIER_HAS_TYPE_VALUE(NODE) (IDENTIFIER_TYPE_VALUE (NODE) ? 1 : 0)
406 #define IDENTIFIER_LABEL_VALUE(NODE) \
407 (LANG_IDENTIFIER_CAST (NODE)->label_value)
408 #define SET_IDENTIFIER_LABEL_VALUE(NODE, VALUE) \
409 IDENTIFIER_LABEL_VALUE (NODE) = (VALUE)
411 #define IDENTIFIER_IMPLICIT_DECL(NODE) \
412 (LANG_IDENTIFIER_CAST (NODE)->implicit_decl)
413 #define SET_IDENTIFIER_IMPLICIT_DECL(NODE, VALUE) \
414 IDENTIFIER_IMPLICIT_DECL (NODE) = (VALUE)
416 #define IDENTIFIER_ERROR_LOCUS(NODE) \
417 (LANG_IDENTIFIER_CAST (NODE)->error_locus)
418 #define SET_IDENTIFIER_ERROR_LOCUS(NODE, VALUE) \
419 IDENTIFIER_ERROR_LOCUS (NODE) = (VALUE)
421 /* Nonzero if this identifier is used as a virtual function name somewhere
422 (optimizes searches). */
423 #define IDENTIFIER_VIRTUAL_P(NODE) TREE_LANG_FLAG_1 (NODE)
425 /* Nonzero if this identifier is the prefix for a mangled C++ operator
427 #define IDENTIFIER_OPNAME_P(NODE) TREE_LANG_FLAG_2 (NODE)
429 /* Nonzero if this identifier is the name of a type-conversion
431 #define IDENTIFIER_TYPENAME_P(NODE) \
432 TREE_LANG_FLAG_4 (NODE)
434 /* Nonzero if this identifier is the name of a constructor or
436 #define IDENTIFIER_CTOR_OR_DTOR_P(NODE) \
437 TREE_LANG_FLAG_3 (NODE)
439 /* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */
440 #define C_TYPE_FIELDS_READONLY(TYPE) \
441 (LANG_TYPE_CLASS_CHECK (TYPE)->fields_readonly)
443 /* Store a value in that field. */
444 #define C_SET_EXP_ORIGINAL_CODE(EXP, CODE) \
445 (TREE_COMPLEXITY (EXP) = (int)(CODE))
447 /* The tokens stored in the default argument. */
449 #define DEFARG_TOKENS(NODE) \
450 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->tokens)
452 struct tree_default_arg GTY (())
454 struct tree_common common;
455 struct cp_token_cache *tokens;
458 enum cp_tree_node_structure_enum {
471 /* The resulting tree type. */
472 union lang_tree_node GTY((desc ("cp_tree_node_structure (&%h)"),
473 chain_next ("(union lang_tree_node *)TREE_CHAIN (&%h.generic)")))
475 union tree_node GTY ((tag ("TS_CP_GENERIC"),
476 desc ("tree_node_structure (&%h)"))) generic;
477 struct template_parm_index_s GTY ((tag ("TS_CP_TPI"))) tpi;
478 struct ptrmem_cst GTY ((tag ("TS_CP_PTRMEM"))) ptrmem;
479 struct tree_overload GTY ((tag ("TS_CP_OVERLOAD"))) overload;
480 struct tree_baselink GTY ((tag ("TS_CP_BASELINK"))) baselink;
481 struct tree_wrapper GTY ((tag ("TS_CP_WRAPPER"))) wrapper;
482 struct tree_default_arg GTY ((tag ("TS_CP_DEFAULT_ARG"))) default_arg;
483 struct lang_identifier GTY ((tag ("TS_CP_IDENTIFIER"))) identifier;
490 CPTI_JAVA_SHORT_TYPE,
493 CPTI_JAVA_FLOAT_TYPE,
494 CPTI_JAVA_DOUBLE_TYPE,
496 CPTI_JAVA_BOOLEAN_TYPE,
499 CPTI_VTABLE_ENTRY_TYPE,
501 CPTI_VTABLE_INDEX_TYPE,
511 CPTI_CLASS_DESC_TYPE,
512 CPTI_SI_CLASS_DESC_TYPE,
513 CPTI_VMI_CLASS_DESC_TYPE,
527 CPTI_TYPE_INFO_PTR_TYPE,
528 CPTI_TYPE_INFO_REF_TYPE,
530 CPTI_GLOBAL_DELETE_FNDECL,
533 CPTI_CTOR_IDENTIFIER,
534 CPTI_COMPLETE_CTOR_IDENTIFIER,
535 CPTI_BASE_CTOR_IDENTIFIER,
536 CPTI_DTOR_IDENTIFIER,
537 CPTI_COMPLETE_DTOR_IDENTIFIER,
538 CPTI_BASE_DTOR_IDENTIFIER,
539 CPTI_DELETING_DTOR_IDENTIFIER,
540 CPTI_DELTA_IDENTIFIER,
541 CPTI_IN_CHARGE_IDENTIFIER,
542 CPTI_VTT_PARM_IDENTIFIER,
543 CPTI_NELTS_IDENTIFIER,
544 CPTI_THIS_IDENTIFIER,
546 CPTI_VPTR_IDENTIFIER,
550 CPTI_LANG_NAME_CPLUSPLUS,
553 CPTI_EMPTY_EXCEPT_SPEC,
557 CPTI_CALL_UNEXPECTED,
567 extern GTY(()) tree cp_global_trees[CPTI_MAX];
569 #define java_byte_type_node cp_global_trees[CPTI_JAVA_BYTE_TYPE]
570 #define java_short_type_node cp_global_trees[CPTI_JAVA_SHORT_TYPE]
571 #define java_int_type_node cp_global_trees[CPTI_JAVA_INT_TYPE]
572 #define java_long_type_node cp_global_trees[CPTI_JAVA_LONG_TYPE]
573 #define java_float_type_node cp_global_trees[CPTI_JAVA_FLOAT_TYPE]
574 #define java_double_type_node cp_global_trees[CPTI_JAVA_DOUBLE_TYPE]
575 #define java_char_type_node cp_global_trees[CPTI_JAVA_CHAR_TYPE]
576 #define java_boolean_type_node cp_global_trees[CPTI_JAVA_BOOLEAN_TYPE]
578 #define wchar_decl_node cp_global_trees[CPTI_WCHAR_DECL]
579 #define vtable_entry_type cp_global_trees[CPTI_VTABLE_ENTRY_TYPE]
580 /* The type used to represent an offset by which to adjust the `this'
581 pointer in pointer-to-member types. */
582 #define delta_type_node cp_global_trees[CPTI_DELTA_TYPE]
583 /* The type used to represent an index into the vtable. */
584 #define vtable_index_type cp_global_trees[CPTI_VTABLE_INDEX_TYPE]
586 #define ti_desc_type_node cp_global_trees[CPTI_TI_DESC_TYPE]
587 #define bltn_desc_type_node cp_global_trees[CPTI_BLTN_DESC_TYPE]
588 #define ptr_desc_type_node cp_global_trees[CPTI_PTR_DESC_TYPE]
589 #define ary_desc_type_node cp_global_trees[CPTI_ARY_DESC_TYPE]
590 #define func_desc_type_node cp_global_trees[CPTI_FUNC_DESC_TYPE]
591 #define enum_desc_type_node cp_global_trees[CPTI_ENUM_DESC_TYPE]
592 #define class_desc_type_node cp_global_trees[CPTI_CLASS_DESC_TYPE]
593 #define si_class_desc_type_node cp_global_trees[CPTI_SI_CLASS_DESC_TYPE]
594 #define vmi_class_desc_type_node cp_global_trees[CPTI_VMI_CLASS_DESC_TYPE]
595 #define ptm_desc_type_node cp_global_trees[CPTI_PTM_DESC_TYPE]
596 #define base_desc_type_node cp_global_trees[CPTI_BASE_DESC_TYPE]
598 #define class_type_node cp_global_trees[CPTI_CLASS_TYPE]
599 #define record_type_node cp_global_trees[CPTI_RECORD_TYPE]
600 #define union_type_node cp_global_trees[CPTI_UNION_TYPE]
601 #define enum_type_node cp_global_trees[CPTI_ENUM_TYPE]
602 #define unknown_type_node cp_global_trees[CPTI_UNKNOWN_TYPE]
603 #define vtbl_type_node cp_global_trees[CPTI_VTBL_TYPE]
604 #define vtbl_ptr_type_node cp_global_trees[CPTI_VTBL_PTR_TYPE]
605 #define std_node cp_global_trees[CPTI_STD]
606 #define abi_node cp_global_trees[CPTI_ABI]
607 #define type_info_type_node cp_global_trees[CPTI_TYPE_INFO_TYPE]
608 #define type_info_ptr_type cp_global_trees[CPTI_TYPE_INFO_PTR_TYPE]
609 #define type_info_ref_type cp_global_trees[CPTI_TYPE_INFO_REF_TYPE]
610 #define abort_fndecl cp_global_trees[CPTI_ABORT_FNDECL]
611 #define global_delete_fndecl cp_global_trees[CPTI_GLOBAL_DELETE_FNDECL]
612 #define current_aggr cp_global_trees[CPTI_AGGR_TAG]
614 /* We cache these tree nodes so as to call get_identifier less
617 /* The name of a constructor that takes an in-charge parameter to
618 decide whether or not to construct virtual base classes. */
619 #define ctor_identifier cp_global_trees[CPTI_CTOR_IDENTIFIER]
620 /* The name of a constructor that constructs virtual base classes. */
621 #define complete_ctor_identifier cp_global_trees[CPTI_COMPLETE_CTOR_IDENTIFIER]
622 /* The name of a constructor that does not construct virtual base classes. */
623 #define base_ctor_identifier cp_global_trees[CPTI_BASE_CTOR_IDENTIFIER]
624 /* The name of a destructor that takes an in-charge parameter to
625 decide whether or not to destroy virtual base classes and whether
626 or not to delete the object. */
627 #define dtor_identifier cp_global_trees[CPTI_DTOR_IDENTIFIER]
628 /* The name of a destructor that destroys virtual base classes. */
629 #define complete_dtor_identifier cp_global_trees[CPTI_COMPLETE_DTOR_IDENTIFIER]
630 /* The name of a destructor that does not destroy virtual base
632 #define base_dtor_identifier cp_global_trees[CPTI_BASE_DTOR_IDENTIFIER]
633 /* The name of a destructor that destroys virtual base classes, and
634 then deletes the entire object. */
635 #define deleting_dtor_identifier cp_global_trees[CPTI_DELETING_DTOR_IDENTIFIER]
636 #define delta_identifier cp_global_trees[CPTI_DELTA_IDENTIFIER]
637 #define in_charge_identifier cp_global_trees[CPTI_IN_CHARGE_IDENTIFIER]
638 /* The name of the parameter that contains a pointer to the VTT to use
639 for this subobject constructor or destructor. */
640 #define vtt_parm_identifier cp_global_trees[CPTI_VTT_PARM_IDENTIFIER]
641 #define nelts_identifier cp_global_trees[CPTI_NELTS_IDENTIFIER]
642 #define this_identifier cp_global_trees[CPTI_THIS_IDENTIFIER]
643 #define pfn_identifier cp_global_trees[CPTI_PFN_IDENTIFIER]
644 #define vptr_identifier cp_global_trees[CPTI_VPTR_IDENTIFIER]
645 /* The name of the std namespace. */
646 #define std_identifier cp_global_trees[CPTI_STD_IDENTIFIER]
647 #define lang_name_c cp_global_trees[CPTI_LANG_NAME_C]
648 #define lang_name_cplusplus cp_global_trees[CPTI_LANG_NAME_CPLUSPLUS]
649 #define lang_name_java cp_global_trees[CPTI_LANG_NAME_JAVA]
651 /* Exception specifier used for throw(). */
652 #define empty_except_spec cp_global_trees[CPTI_EMPTY_EXCEPT_SPEC]
654 /* The node for `__null'. */
655 #define null_node cp_global_trees[CPTI_NULL]
657 /* If non-NULL, a POINTER_TYPE equivalent to (java::lang::Class*). */
658 #define jclass_node cp_global_trees[CPTI_JCLASS]
660 /* The declaration for `std::terminate'. */
661 #define terminate_node cp_global_trees[CPTI_TERMINATE]
663 /* The declaration for "__cxa_call_unexpected". */
664 #define call_unexpected_node cp_global_trees[CPTI_CALL_UNEXPECTED]
666 /* A pointer to `std::atexit'. */
667 #define atexit_node cp_global_trees[CPTI_ATEXIT]
669 /* A pointer to `__dso_handle'. */
670 #define dso_handle_node cp_global_trees[CPTI_DSO_HANDLE]
672 /* The declaration of the dynamic_cast runtime. */
673 #define dynamic_cast_node cp_global_trees[CPTI_DCAST]
675 /* The type of a destructor. */
676 #define cleanup_type cp_global_trees[CPTI_CLEANUP_TYPE]
678 /* The type of the vtt parameter passed to subobject constructors and
680 #define vtt_parm_type cp_global_trees[CPTI_VTT_PARM_TYPE]
682 /* A TREE_LIST of the dynamic classes whose vtables may have to be
683 emitted in this translation unit. */
685 #define keyed_classes cp_global_trees[CPTI_KEYED_CLASSES]
687 /* Node to indicate default access. This must be distinct from the
688 access nodes in tree.h. */
690 #define access_default_node null_node
694 struct saved_scope GTY(())
696 cxx_saved_binding *old_bindings;
701 tree access_specifier;
703 varray_type lang_base;
706 tree x_previous_class_type;
707 tree x_previous_class_values;
711 HOST_WIDE_INT x_processing_template_decl;
712 int x_processing_specialization;
713 bool x_processing_explicit_instantiation;
714 int need_pop_function_context;
716 struct stmt_tree_s x_stmt_tree;
718 struct cp_binding_level *class_bindings;
719 struct cp_binding_level *bindings;
721 struct saved_scope *prev;
724 /* The current open namespace. */
726 #define current_namespace scope_chain->old_namespace
728 /* The stack for namespaces of current declarations. */
730 #define decl_namespace_list scope_chain->decl_ns_list
732 /* IDENTIFIER_NODE: name of current class */
734 #define current_class_name scope_chain->class_name
736 /* _TYPE: the type of the current class */
738 #define current_class_type scope_chain->class_type
740 /* When parsing a class definition, the access specifier most recently
741 given by the user, or, if no access specifier was given, the
742 default value appropriate for the kind of class (i.e., struct,
745 #define current_access_specifier scope_chain->access_specifier
747 /* Pointer to the top of the language name stack. */
749 #define current_lang_base scope_chain->lang_base
750 #define current_lang_name scope_chain->lang_name
752 /* Parsing a function declarator leaves a list of parameter names
753 or a chain or parameter decls here. */
755 #define current_template_parms scope_chain->template_parms
757 #define processing_template_decl scope_chain->x_processing_template_decl
758 #define processing_specialization scope_chain->x_processing_specialization
759 #define processing_explicit_instantiation scope_chain->x_processing_explicit_instantiation
761 /* _TYPE: the previous type that was a class */
763 #define previous_class_type scope_chain->x_previous_class_type
765 /* This is a copy of the class_shadowed list of the previous class
766 binding contour when at global scope. It's used to reset
767 IDENTIFIER_CLASS_VALUEs when entering another class scope (i.e. a
770 #define previous_class_values scope_chain->x_previous_class_values
772 /* A list of private types mentioned, for deferred access checking. */
774 extern GTY(()) struct saved_scope *scope_chain;
776 /* Global state pertinent to the current function. */
778 struct language_function GTY(())
780 struct c_language_function base;
783 tree x_current_class_ptr;
784 tree x_current_class_ref;
785 tree x_eh_spec_block;
786 tree x_in_charge_parm;
792 int returns_abnormally;
793 int in_function_try_handler;
794 int in_base_initializer;
797 /* True if this function can throw an exception. */
800 struct named_label_use_list *x_named_label_uses;
801 struct named_label_list *x_named_labels;
802 struct cp_binding_level *bindings;
803 varray_type x_local_names;
805 const char *cannot_inline;
808 /* The current C++-specific per-function global variables. */
810 #define cp_function_chain (cfun->language)
812 /* In a destructor, the point at which all derived class destroying
813 has been done, just before any base class destroying will be done. */
815 #define dtor_label cp_function_chain->x_dtor_label
817 /* When we're processing a member function, current_class_ptr is the
818 PARM_DECL for the `this' pointer. The current_class_ref is an
819 expression for `*this'. */
821 #define current_class_ptr \
822 (cfun ? cp_function_chain->x_current_class_ptr : NULL_TREE)
823 #define current_class_ref \
824 (cfun ? cp_function_chain->x_current_class_ref : NULL_TREE)
826 /* The EH_SPEC_BLOCK for the exception-specifiers for the current
829 #define current_eh_spec_block cp_function_chain->x_eh_spec_block
831 /* The `__in_chrg' parameter for the current function. Only used for
832 constructors and destructors. */
834 #define current_in_charge_parm cp_function_chain->x_in_charge_parm
836 /* The `__vtt_parm' parameter for the current function. Only used for
837 constructors and destructors. */
839 #define current_vtt_parm cp_function_chain->x_vtt_parm
841 /* Set to 0 at beginning of a function definition, set to 1 if
842 a return statement that specifies a return value is seen. */
844 #define current_function_returns_value cp_function_chain->returns_value
846 /* Set to 0 at beginning of a function definition, set to 1 if
847 a return statement with no argument is seen. */
849 #define current_function_returns_null cp_function_chain->returns_null
851 /* Set to 0 at beginning of a function definition, set to 1 if
852 a call to a noreturn function is seen. */
854 #define current_function_returns_abnormally \
855 cp_function_chain->returns_abnormally
857 /* Nonzero if we should generate RTL for functions that we process.
858 When this is zero, we just accumulate tree structure, without
859 interacting with the back end. */
861 #define expanding_p cp_function_chain->x_expanding_p
863 /* Nonzero if we are in the semantic analysis phase for the current
866 #define doing_semantic_analysis_p() (!expanding_p)
868 /* Nonzero if we are processing a base initializer. Zero elsewhere. */
869 #define in_base_initializer cp_function_chain->in_base_initializer
871 #define in_function_try_handler cp_function_chain->in_function_try_handler
873 /* Expression always returned from function, or error_mark_node
874 otherwise, for use by the automatic named return value optimization. */
876 #define current_function_return_value \
877 (cp_function_chain->x_return_value)
879 extern GTY(()) tree global_namespace;
881 #define ansi_opname(CODE) \
882 (operator_name_info[(int) (CODE)].identifier)
883 #define ansi_assopname(CODE) \
884 (assignment_operator_name_info[(int) (CODE)].identifier)
886 /* True if NODE is an erroneous expression. */
888 #define error_operand_p(NODE) \
889 ((NODE) == error_mark_node \
890 || ((NODE) && TREE_TYPE ((NODE)) == error_mark_node))
892 /* INTERFACE_ONLY nonzero means that we are in an "interface"
893 section of the compiler. INTERFACE_UNKNOWN nonzero means
894 we cannot trust the value of INTERFACE_ONLY. If INTERFACE_UNKNOWN
895 is zero and INTERFACE_ONLY is zero, it means that we are responsible
896 for exporting definitions that others might need. */
897 extern int interface_only, interface_unknown;
899 /* C++ language-specific tree codes. */
900 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) SYM,
901 enum cplus_tree_code {
902 CP_DUMMY_TREE_CODE = LAST_C_TREE_CODE,
903 #include "cp-tree.def"
908 #define cp_stmt_codes \
909 CTOR_INITIALIZER, TRY_BLOCK, HANDLER, \
910 EH_SPEC_BLOCK, USING_STMT, TAG_DEFN
912 enum languages { lang_c, lang_cplusplus, lang_java };
914 /* Macros to make error reporting functions' lives easier. */
915 #define TYPE_IDENTIFIER(NODE) (DECL_NAME (TYPE_NAME (NODE)))
916 #define TYPE_LINKAGE_IDENTIFIER(NODE) \
917 (TYPE_IDENTIFIER (TYPE_MAIN_VARIANT (NODE)))
918 #define TYPE_NAME_STRING(NODE) (IDENTIFIER_POINTER (TYPE_IDENTIFIER (NODE)))
919 #define TYPE_NAME_LENGTH(NODE) (IDENTIFIER_LENGTH (TYPE_IDENTIFIER (NODE)))
921 #define TYPE_ASSEMBLER_NAME_STRING(NODE) \
922 (IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (TYPE_NAME (NODE))))
923 #define TYPE_ASSEMBLER_NAME_LENGTH(NODE) \
924 (IDENTIFIER_LENGTH (DECL_ASSEMBLER_NAME (TYPE_NAME (NODE))))
926 /* Nonzero if NODE has no name for linkage purposes. */
927 #define TYPE_ANONYMOUS_P(NODE) \
928 (TAGGED_TYPE_P (NODE) && ANON_AGGRNAME_P (TYPE_LINKAGE_IDENTIFIER (NODE)))
930 /* The _DECL for this _TYPE. */
931 #define TYPE_MAIN_DECL(NODE) (TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE)))
933 /* Nonzero if T is a class (or struct or union) type. Also nonzero
934 for template type parameters, typename types, and instantiated
935 template template parameters. Despite its name,
936 this macro has nothing to do with the definition of aggregate given
937 in the standard. Think of this macro as MAYBE_CLASS_TYPE_P. */
938 #define IS_AGGR_TYPE(T) \
939 (TREE_CODE (T) == TEMPLATE_TYPE_PARM \
940 || TREE_CODE (T) == TYPENAME_TYPE \
941 || TREE_CODE (T) == TYPEOF_TYPE \
942 || TREE_CODE (T) == BOUND_TEMPLATE_TEMPLATE_PARM \
943 || TYPE_LANG_FLAG_5 (T))
945 /* Set IS_AGGR_TYPE for T to VAL. T must be a class, struct, or
947 #define SET_IS_AGGR_TYPE(T, VAL) \
948 (TYPE_LANG_FLAG_5 (T) = (VAL))
950 /* Nonzero if T is a class type. Zero for template type parameters,
951 typename types, and so forth. */
952 #define CLASS_TYPE_P(T) \
953 (IS_AGGR_TYPE_CODE (TREE_CODE (T)) && IS_AGGR_TYPE (T))
955 #define IS_AGGR_TYPE_CODE(T) ((T) == RECORD_TYPE || (T) == UNION_TYPE)
956 #define TAGGED_TYPE_P(T) \
957 (CLASS_TYPE_P (T) || TREE_CODE (T) == ENUMERAL_TYPE)
958 #define IS_OVERLOAD_TYPE(T) TAGGED_TYPE_P (T)
960 /* True if this a "Java" type, defined in 'extern "Java"'. */
961 #define TYPE_FOR_JAVA(NODE) TYPE_LANG_FLAG_3 (NODE)
963 /* True if this type is dependent. This predicate is only valid if
964 TYPE_DEPENDENT_P_VALID is true. */
965 #define TYPE_DEPENDENT_P(NODE) TYPE_LANG_FLAG_0 (NODE)
967 /* True if dependent_type_p has been called for this type, with the
968 result that TYPE_DEPENDENT_P is valid. */
969 #define TYPE_DEPENDENT_P_VALID(NODE) TYPE_LANG_FLAG_6(NODE)
971 /* Nonzero if this type is const-qualified. */
972 #define CP_TYPE_CONST_P(NODE) \
973 ((cp_type_quals (NODE) & TYPE_QUAL_CONST) != 0)
975 /* Nonzero if this type is volatile-qualified. */
976 #define CP_TYPE_VOLATILE_P(NODE) \
977 ((cp_type_quals (NODE) & TYPE_QUAL_VOLATILE) != 0)
979 /* Nonzero if this type is restrict-qualified. */
980 #define CP_TYPE_RESTRICT_P(NODE) \
981 ((cp_type_quals (NODE) & TYPE_QUAL_RESTRICT) != 0)
983 /* Nonzero if this type is const-qualified, but not
984 volatile-qualified. Other qualifiers are ignored. This macro is
985 used to test whether or not it is OK to bind an rvalue to a
987 #define CP_TYPE_CONST_NON_VOLATILE_P(NODE) \
988 ((cp_type_quals (NODE) & (TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE)) \
991 #define FUNCTION_ARG_CHAIN(NODE) \
992 TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (NODE)))
994 /* Given a FUNCTION_DECL, returns the first TREE_LIST out of TYPE_ARG_TYPES
995 which refers to a user-written parameter. */
996 #define FUNCTION_FIRST_USER_PARMTYPE(NODE) \
997 skip_artificial_parms_for ((NODE), TYPE_ARG_TYPES (TREE_TYPE (NODE)))
999 /* Similarly, but for DECL_ARGUMENTS. */
1000 #define FUNCTION_FIRST_USER_PARM(NODE) \
1001 skip_artificial_parms_for ((NODE), DECL_ARGUMENTS (NODE))
1003 #define PROMOTES_TO_AGGR_TYPE(NODE, CODE) \
1004 (((CODE) == TREE_CODE (NODE) \
1005 && IS_AGGR_TYPE (TREE_TYPE (NODE))) \
1006 || IS_AGGR_TYPE (NODE))
1008 /* Nonzero iff TYPE is derived from PARENT. Ignores accessibility and
1009 ambiguity issues. */
1010 #define DERIVED_FROM_P(PARENT, TYPE) \
1011 (lookup_base ((TYPE), PARENT, ba_any, NULL) != NULL_TREE)
1012 /* Nonzero iff TYPE is uniquely derived from PARENT. Ignores
1014 #define UNIQUELY_DERIVED_FROM_P(PARENT, TYPE) \
1015 (lookup_base ((TYPE), (PARENT), ba_ignore | ba_quiet, NULL) != NULL_TREE)
1016 /* Nonzero iff TYPE is accessible in the current scope and uniquely
1017 derived from PARENT. */
1018 #define ACCESSIBLY_UNIQUELY_DERIVED_P(PARENT, TYPE) \
1019 (lookup_base ((TYPE), (PARENT), ba_check | ba_quiet, NULL) != NULL_TREE)
1020 /* Nonzero iff TYPE is publicly & uniquely derived from PARENT. */
1021 #define PUBLICLY_UNIQUELY_DERIVED_P(PARENT, TYPE) \
1022 (lookup_base ((TYPE), (PARENT), ba_not_special | ba_quiet, NULL) \
1025 /* This is a few header flags for 'struct lang_type'. Actually,
1026 all but the first are used only for lang_type_class; they
1027 are put in this structure to save space. */
1028 __extension__ struct lang_type_header GTY(())
1030 CHAR_BITFIELD is_lang_type_class : 1;
1032 CHAR_BITFIELD has_type_conversion : 1;
1033 CHAR_BITFIELD has_init_ref : 1;
1034 CHAR_BITFIELD has_default_ctor : 1;
1035 CHAR_BITFIELD uses_multiple_inheritance : 1;
1036 CHAR_BITFIELD const_needs_init : 1;
1037 CHAR_BITFIELD ref_needs_init : 1;
1038 CHAR_BITFIELD has_const_assign_ref : 1;
1041 /* This structure provides additional information above and beyond
1042 what is provide in the ordinary tree_type. In the past, we used it
1043 for the types of class types, template parameters types, typename
1044 types, and so forth. However, there can be many (tens to hundreds
1045 of thousands) of template parameter types in a compilation, and
1046 there's no need for this additional information in that case.
1047 Therefore, we now use this data structure only for class types.
1049 In the past, it was thought that there would be relatively few
1050 class types. However, in the presence of heavy use of templates,
1051 many (i.e., thousands) of classes can easily be generated.
1052 Therefore, we should endeavor to keep the size of this structure to
1054 struct lang_type_class GTY(())
1056 struct lang_type_header h;
1058 unsigned char align;
1060 unsigned has_mutable : 1;
1061 unsigned com_interface : 1;
1062 unsigned non_pod_class : 1;
1063 unsigned nearly_empty_p : 1;
1064 unsigned user_align : 1;
1065 unsigned has_assign_ref : 1;
1066 unsigned has_new : 1;
1067 unsigned has_array_new : 1;
1069 unsigned gets_delete : 2;
1070 unsigned has_call_overloaded : 1;
1071 unsigned has_array_ref_overloaded : 1;
1072 unsigned has_arrow_overloaded : 1;
1073 unsigned interface_only : 1;
1074 unsigned interface_unknown : 1;
1075 unsigned contains_empty_class_p : 1;
1078 unsigned vec_new_uses_cookie : 1;
1079 unsigned declared_class : 1;
1081 unsigned being_defined : 1;
1082 unsigned redefined : 1;
1083 unsigned debug_requested : 1;
1084 unsigned use_template : 2;
1085 unsigned got_semicolon : 1;
1086 unsigned ptrmemfunc_flag : 1;
1087 unsigned was_anonymous : 1;
1089 unsigned has_real_assign_ref : 1;
1090 unsigned has_const_init_ref : 1;
1091 unsigned has_complex_init_ref : 1;
1092 unsigned has_complex_assign_ref : 1;
1093 unsigned has_abstract_assign_ref : 1;
1094 unsigned non_aggregate : 1;
1095 unsigned java_interface : 1;
1096 unsigned anon_aggr : 1;
1098 unsigned non_zero_init : 1;
1099 unsigned empty_p : 1;
1100 unsigned fields_readonly : 1;
1102 /* When adding a flag here, consider whether or not it ought to
1103 apply to a template instance if it applies to the template. If
1104 so, make sure to copy it in instantiate_class_template! */
1106 /* There are some bits left to fill out a 32-bit word. Keep track
1107 of this by updating the size of this bitfield whenever you add or
1117 binding_table nested_udts;
1120 tree friend_classes;
1121 tree GTY ((reorder ("resort_type_method_vec"))) methods;
1125 tree befriending_classes;
1128 struct lang_type_ptrmem GTY(())
1130 struct lang_type_header h;
1134 struct lang_type GTY(())
1138 struct lang_type_header GTY((tag ("2"))) h;
1139 struct lang_type_class GTY((tag ("1"))) c;
1140 struct lang_type_ptrmem GTY((tag ("0"))) ptrmem;
1141 } GTY((desc ("%h.h.is_lang_type_class"))) u;
1144 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1146 #define LANG_TYPE_CLASS_CHECK(NODE) __extension__ \
1147 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1148 if (! lt->u.h.is_lang_type_class) \
1149 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1152 #define LANG_TYPE_PTRMEM_CHECK(NODE) __extension__ \
1153 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1154 if (lt->u.h.is_lang_type_class) \
1155 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1160 #define LANG_TYPE_CLASS_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.c)
1161 #define LANG_TYPE_PTRMEM_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.ptrmem)
1163 #endif /* ENABLE_TREE_CHECKING */
1165 /* Indicates whether or not (and how) a template was expanded for this class.
1166 0=no information yet/non-template class
1167 1=implicit template instantiation
1168 2=explicit template specialization
1169 3=explicit template instantiation */
1170 #define CLASSTYPE_USE_TEMPLATE(NODE) \
1171 (LANG_TYPE_CLASS_CHECK (NODE)->use_template)
1173 /* Fields used for storing information before the class is defined.
1174 After the class is defined, these fields hold other information. */
1176 /* List of friends which were defined inline in this class definition. */
1177 #define CLASSTYPE_INLINE_FRIENDS(NODE) CLASSTYPE_PURE_VIRTUALS (NODE)
1179 /* Nonzero for _CLASSTYPE means that operator delete is defined. */
1180 #define TYPE_GETS_DELETE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->gets_delete)
1181 #define TYPE_GETS_REG_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 1)
1183 /* Nonzero if `new NODE[x]' should cause the allocation of extra
1184 storage to indicate how many array elements are in use. */
1185 #define TYPE_VEC_NEW_USES_COOKIE(NODE) \
1186 (CLASS_TYPE_P (NODE) \
1187 && LANG_TYPE_CLASS_CHECK (NODE)->vec_new_uses_cookie)
1189 /* Nonzero means that this _CLASSTYPE node defines ways of converting
1190 itself to other types. */
1191 #define TYPE_HAS_CONVERSION(NODE) \
1192 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_type_conversion)
1194 /* Nonzero means that this _CLASSTYPE node overloads operator=(X&). */
1195 #define TYPE_HAS_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_assign_ref)
1196 #define TYPE_HAS_CONST_ASSIGN_REF(NODE) \
1197 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_const_assign_ref)
1199 /* Nonzero means that this _CLASSTYPE node has an X(X&) constructor. */
1200 #define TYPE_HAS_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->h.has_init_ref)
1201 #define TYPE_HAS_CONST_INIT_REF(NODE) \
1202 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_init_ref)
1204 /* Nonzero if this class defines an overloaded operator new. (An
1205 operator new [] doesn't count.) */
1206 #define TYPE_HAS_NEW_OPERATOR(NODE) \
1207 (LANG_TYPE_CLASS_CHECK (NODE)->has_new)
1209 /* Nonzero if this class defines an overloaded operator new[]. */
1210 #define TYPE_HAS_ARRAY_NEW_OPERATOR(NODE) \
1211 (LANG_TYPE_CLASS_CHECK (NODE)->has_array_new)
1213 /* Nonzero means that this type is being defined. I.e., the left brace
1214 starting the definition of this type has been seen. */
1215 #define TYPE_BEING_DEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->being_defined)
1216 /* Nonzero means that this type has been redefined. In this case, if
1217 convenient, don't reprocess any methods that appear in its redefinition. */
1218 #define TYPE_REDEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->redefined)
1220 /* Nonzero means that this _CLASSTYPE node overloads operator(). */
1221 #define TYPE_OVERLOADS_CALL_EXPR(NODE) \
1222 (LANG_TYPE_CLASS_CHECK (NODE)->has_call_overloaded)
1224 /* Nonzero means that this _CLASSTYPE node overloads operator[]. */
1225 #define TYPE_OVERLOADS_ARRAY_REF(NODE) \
1226 (LANG_TYPE_CLASS_CHECK (NODE)->has_array_ref_overloaded)
1228 /* Nonzero means that this _CLASSTYPE node overloads operator->. */
1229 #define TYPE_OVERLOADS_ARROW(NODE) \
1230 (LANG_TYPE_CLASS_CHECK (NODE)->has_arrow_overloaded)
1232 /* Nonzero means that this _CLASSTYPE (or one of its ancestors) uses
1233 multiple inheritance. If this is 0 for the root of a type
1234 hierarchy, then we can use more efficient search techniques. */
1235 #define TYPE_USES_MULTIPLE_INHERITANCE(NODE) \
1236 (LANG_TYPE_CLASS_CHECK (NODE)->h.uses_multiple_inheritance)
1238 /* Nonzero means that this _CLASSTYPE (or one of its ancestors) uses
1239 virtual base classes. If this is 0 for the root of a type
1240 hierarchy, then we can use more efficient search techniques. */
1241 #define TYPE_USES_VIRTUAL_BASECLASSES(NODE) (TREE_LANG_FLAG_3 (NODE))
1243 /* The member function with which the vtable will be emitted:
1244 the first noninline non-pure-virtual member function. NULL_TREE
1245 if there is no key function or if this is a class template */
1246 #define CLASSTYPE_KEY_METHOD(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->key_method)
1248 /* Vector member functions defined in this class. Each element is
1249 either a FUNCTION_DECL, a TEMPLATE_DECL, or an OVERLOAD. All
1250 functions with the same name end up in the same slot. The first
1251 two elements are for constructors, and destructors, respectively.
1252 All template conversion operators to innermost template dependent
1253 types are overloaded on the next slot, if they exist. Note, the
1254 names for these functions will not all be the same. The
1255 non-template conversion operators & templated conversions to
1256 non-innermost template types are next, followed by ordinary member
1257 functions. There may be empty entries at the end of the vector.
1258 The conversion operators are unsorted. The ordinary member
1259 functions are sorted, once the class is complete. */
1260 #define CLASSTYPE_METHOD_VEC(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->methods)
1262 /* For class templates, this is a TREE_LIST of all member data,
1263 functions, types, and friends in the order of declaration.
1264 The TREE_PURPOSE of each TREE_LIST is NULL_TREE for a friend,
1265 and the RECORD_TYPE for the class template otherwise. */
1266 #define CLASSTYPE_DECL_LIST(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->decl_list)
1268 /* The slot in the CLASSTYPE_METHOD_VEC where constructors go. */
1269 #define CLASSTYPE_CONSTRUCTOR_SLOT 0
1271 /* The slot in the CLASSTYPE_METHOD_VEC where destructors go. */
1272 #define CLASSTYPE_DESTRUCTOR_SLOT 1
1274 /* The first slot in the CLASSTYPE_METHOD_VEC where conversion
1275 operators can appear. */
1276 #define CLASSTYPE_FIRST_CONVERSION_SLOT 2
1278 /* A FUNCTION_DECL or OVERLOAD for the constructors for NODE. These
1279 are the constructors that take an in-charge parameter. */
1280 #define CLASSTYPE_CONSTRUCTORS(NODE) \
1281 (TREE_VEC_ELT (CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_CONSTRUCTOR_SLOT))
1283 /* A FUNCTION_DECL for the destructor for NODE. These are the
1284 destructors that take an in-charge parameter. */
1285 #define CLASSTYPE_DESTRUCTORS(NODE) \
1286 (TREE_VEC_ELT (CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_DESTRUCTOR_SLOT))
1288 /* Mark bits for depth-first and breath-first searches. */
1290 /* Get the value of the Nth mark bit. */
1291 #define CLASSTYPE_MARKED_N(NODE, N) \
1292 (((CLASS_TYPE_P (NODE) ? LANG_TYPE_CLASS_CHECK (NODE)->marks \
1293 : ((unsigned) TYPE_ALIAS_SET (NODE))) & (1 << (N))) != 0)
1295 /* Set the Nth mark bit. */
1296 #define SET_CLASSTYPE_MARKED_N(NODE, N) \
1297 (CLASS_TYPE_P (NODE) \
1298 ? (void) (LANG_TYPE_CLASS_CHECK (NODE)->marks |= (1 << (N))) \
1299 : (void) (TYPE_ALIAS_SET (NODE) |= (1 << (N))))
1301 /* Clear the Nth mark bit. */
1302 #define CLEAR_CLASSTYPE_MARKED_N(NODE, N) \
1303 (CLASS_TYPE_P (NODE) \
1304 ? (void) (LANG_TYPE_CLASS_CHECK (NODE)->marks &= ~(1 << (N))) \
1305 : (void) (TYPE_ALIAS_SET (NODE) &= ~(1 << (N))))
1307 /* Get the value of the mark bits. */
1308 #define CLASSTYPE_MARKED(NODE) CLASSTYPE_MARKED_N (NODE, 0)
1309 #define CLASSTYPE_MARKED2(NODE) CLASSTYPE_MARKED_N (NODE, 1)
1310 #define CLASSTYPE_MARKED3(NODE) CLASSTYPE_MARKED_N (NODE, 2)
1311 #define CLASSTYPE_MARKED4(NODE) CLASSTYPE_MARKED_N (NODE, 3)
1312 #define CLASSTYPE_MARKED5(NODE) CLASSTYPE_MARKED_N (NODE, 4)
1313 #define CLASSTYPE_MARKED6(NODE) CLASSTYPE_MARKED_N (NODE, 5)
1315 /* Macros to modify the above flags */
1316 #define SET_CLASSTYPE_MARKED(NODE) SET_CLASSTYPE_MARKED_N (NODE, 0)
1317 #define CLEAR_CLASSTYPE_MARKED(NODE) CLEAR_CLASSTYPE_MARKED_N (NODE, 0)
1318 #define SET_CLASSTYPE_MARKED2(NODE) SET_CLASSTYPE_MARKED_N (NODE, 1)
1319 #define CLEAR_CLASSTYPE_MARKED2(NODE) CLEAR_CLASSTYPE_MARKED_N (NODE, 1)
1320 #define SET_CLASSTYPE_MARKED3(NODE) SET_CLASSTYPE_MARKED_N (NODE, 2)
1321 #define CLEAR_CLASSTYPE_MARKED3(NODE) CLEAR_CLASSTYPE_MARKED_N (NODE, 2)
1322 #define SET_CLASSTYPE_MARKED4(NODE) SET_CLASSTYPE_MARKED_N (NODE, 3)
1323 #define CLEAR_CLASSTYPE_MARKED4(NODE) CLEAR_CLASSTYPE_MARKED_N (NODE, 3)
1324 #define SET_CLASSTYPE_MARKED5(NODE) SET_CLASSTYPE_MARKED_N (NODE, 4)
1325 #define CLEAR_CLASSTYPE_MARKED5(NODE) CLEAR_CLASSTYPE_MARKED_N (NODE, 4)
1326 #define SET_CLASSTYPE_MARKED6(NODE) SET_CLASSTYPE_MARKED_N (NODE, 5)
1327 #define CLEAR_CLASSTYPE_MARKED6(NODE) CLEAR_CLASSTYPE_MARKED_N (NODE, 5)
1329 /* A dictionary of the nested user-defined-types (class-types, or enums)
1330 found within this class. This table includes nested member class
1332 #define CLASSTYPE_NESTED_UTDS(NODE) \
1333 (LANG_TYPE_CLASS_CHECK (NODE)->nested_udts)
1335 /* Nonzero if NODE has a primary base class, i.e., a base class with
1336 which it shares the virtual function table pointer. */
1337 #define CLASSTYPE_HAS_PRIMARY_BASE_P(NODE) \
1338 (CLASSTYPE_PRIMARY_BINFO (NODE) != NULL_TREE)
1340 /* If non-NULL, this is the binfo for the primary base class, i.e.,
1341 the base class which contains the virtual function table pointer
1343 #define CLASSTYPE_PRIMARY_BINFO(NODE) \
1344 (LANG_TYPE_CLASS_CHECK (NODE)->primary_base)
1346 /* A chain of BINFOs for the direct and indirect virtual base classes
1347 that this type uses in a post-order depth-first left-to-right
1348 order. (In other words, these bases appear in the order that they
1349 should be initialized.) */
1350 #define CLASSTYPE_VBASECLASSES(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->vbases)
1352 /* Number of direct baseclasses of NODE. */
1353 #define CLASSTYPE_N_BASECLASSES(NODE) \
1354 (BINFO_N_BASETYPES (TYPE_BINFO (NODE)))
1356 /* The type corresponding to NODE when NODE is used as a base class,
1357 i.e., NODE without virtual base classes. */
1359 #define CLASSTYPE_AS_BASE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->as_base)
1361 /* These are the size and alignment of the type without its virtual
1362 base classes, for when we use this type as a base itself. */
1363 #define CLASSTYPE_SIZE(NODE) TYPE_SIZE (CLASSTYPE_AS_BASE (NODE))
1364 #define CLASSTYPE_SIZE_UNIT(NODE) TYPE_SIZE_UNIT (CLASSTYPE_AS_BASE (NODE))
1365 #define CLASSTYPE_ALIGN(NODE) TYPE_ALIGN (CLASSTYPE_AS_BASE (NODE))
1366 #define CLASSTYPE_USER_ALIGN(NODE) TYPE_USER_ALIGN (CLASSTYPE_AS_BASE (NODE))
1368 /* The alignment of NODE, without its virtual bases, in bytes. */
1369 #define CLASSTYPE_ALIGN_UNIT(NODE) \
1370 (CLASSTYPE_ALIGN (NODE) / BITS_PER_UNIT)
1372 /* True if this a Java interface type, declared with
1373 '__attribute__ ((java_interface))'. */
1374 #define TYPE_JAVA_INTERFACE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->java_interface)
1376 /* A cons list of virtual functions which cannot be inherited by
1377 derived classes. When deriving from this type, the derived
1378 class must provide its own definition for each of these functions. */
1379 #define CLASSTYPE_PURE_VIRTUALS(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->pure_virtuals)
1381 /* Nonzero means that this aggr type has been `closed' by a semicolon. */
1382 #define CLASSTYPE_GOT_SEMICOLON(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->got_semicolon)
1384 /* Nonzero means that this type has an X() constructor. */
1385 #define TYPE_HAS_DEFAULT_CONSTRUCTOR(NODE) \
1386 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_default_ctor)
1388 /* Nonzero means that this type contains a mutable member */
1389 #define CLASSTYPE_HAS_MUTABLE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_mutable)
1390 #define TYPE_HAS_MUTABLE_P(NODE) (cp_has_mutable_p (NODE))
1392 /* Nonzero means that this class type is a non-POD class. */
1393 #define CLASSTYPE_NON_POD_P(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->non_pod_class)
1395 /* Nonzero means that this class contains pod types whose default
1396 initialization is not a zero initialization (namely, pointers to
1398 #define CLASSTYPE_NON_ZERO_INIT_P(NODE) \
1399 (LANG_TYPE_CLASS_CHECK (NODE)->non_zero_init)
1401 /* Nonzero if this class is "empty" in the sense of the C++ ABI. */
1402 #define CLASSTYPE_EMPTY_P(NODE) \
1403 (LANG_TYPE_CLASS_CHECK (NODE)->empty_p)
1405 /* Nonzero if this class is "nearly empty", i.e., contains only a
1406 virtual function table pointer. */
1407 #define CLASSTYPE_NEARLY_EMPTY_P(NODE) \
1408 (LANG_TYPE_CLASS_CHECK (NODE)->nearly_empty_p)
1410 /* Nonzero if this class contains an empty subobject. */
1411 #define CLASSTYPE_CONTAINS_EMPTY_CLASS_P(NODE) \
1412 (LANG_TYPE_CLASS_CHECK (NODE)->contains_empty_class_p)
1414 /* A list of class types of which this type is a friend. The
1415 TREE_VALUE is normally a TYPE, but will be a TEMPLATE_DECL in the
1416 case of a template friend. */
1417 #define CLASSTYPE_FRIEND_CLASSES(NODE) \
1418 (LANG_TYPE_CLASS_CHECK (NODE)->friend_classes)
1420 /* A list of the classes which grant friendship to this class. */
1421 #define CLASSTYPE_BEFRIENDING_CLASSES(NODE) \
1422 (LANG_TYPE_CLASS_CHECK (NODE)->befriending_classes)
1424 /* Say whether this node was declared as a "class" or a "struct". */
1425 #define CLASSTYPE_DECLARED_CLASS(NODE) \
1426 (LANG_TYPE_CLASS_CHECK (NODE)->declared_class)
1428 /* Nonzero if this class has const members
1429 which have no specified initialization. */
1430 #define CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE) \
1431 (TYPE_LANG_SPECIFIC (NODE) \
1432 ? LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init : 0)
1433 #define SET_CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE, VALUE) \
1434 (LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init = (VALUE))
1436 /* Nonzero if this class has ref members
1437 which have no specified initialization. */
1438 #define CLASSTYPE_REF_FIELDS_NEED_INIT(NODE) \
1439 (TYPE_LANG_SPECIFIC (NODE) \
1440 ? LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init : 0)
1441 #define SET_CLASSTYPE_REF_FIELDS_NEED_INIT(NODE, VALUE) \
1442 (LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init = (VALUE))
1444 /* Nonzero if this class is included from a header file which employs
1445 `#pragma interface', and it is not included in its implementation file. */
1446 #define CLASSTYPE_INTERFACE_ONLY(NODE) \
1447 (LANG_TYPE_CLASS_CHECK (NODE)->interface_only)
1449 /* True if we have already determined whether or not vtables, VTTs,
1450 typeinfo, and other similar per-class data should be emitted in
1451 this translation unit. This flag does not indicate whether or not
1452 these items should be emitted; it only indicates that we know one
1453 way or the other. */
1454 #define CLASSTYPE_INTERFACE_KNOWN(NODE) \
1455 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown == 0)
1456 /* The opposite of CLASSTYPE_INTERFANCE_KNOWN. */
1457 #define CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1458 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown)
1460 #define SET_CLASSTYPE_INTERFACE_UNKNOWN_X(NODE,X) \
1461 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = !!(X))
1462 #define SET_CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1463 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 1)
1464 #define SET_CLASSTYPE_INTERFACE_KNOWN(NODE) \
1465 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 0)
1467 /* Nonzero if a _DECL node requires us to output debug info for this class. */
1468 #define CLASSTYPE_DEBUG_REQUESTED(NODE) \
1469 (LANG_TYPE_CLASS_CHECK (NODE)->debug_requested)
1471 /* Additional macros for inheritance information. */
1473 /* The BINFO_INHERITANCE_CHAIN is used opposite to the description in
1474 gcc/tree.h. In particular if D is non-virtually derived from B
1475 then the BINFO for B (in D) will have a BINFO_INHERITANCE_CHAIN
1476 pointing to D. If D is virtually derived, its
1477 BINFO_INHERITANCE_CHAIN will point to the most derived binfo. In
1478 tree.h, this pointer is described as pointing in other
1479 direction. The binfos of virtual bases are shared. */
1481 /* Nonzero means marked by DFS or BFS search. */
1482 #define BINFO_MARKED(NODE) TREE_LANG_FLAG_0 (NODE)
1484 /* Nonzero means that this class is on a path leading to a new vtable. */
1485 #define BINFO_VTABLE_PATH_MARKED(NODE) TREE_LANG_FLAG_3 (NODE)
1487 /* Nonzero means B (a BINFO) has its own vtable. Any copies will not
1488 have this flag set. */
1489 #define BINFO_NEW_VTABLE_MARKED(B) (TREE_LANG_FLAG_4 (B))
1491 /* Any subobject that needs a new vtable must have a vptr and must not
1492 be a non-virtual primary base (since it would then use the vtable from a
1493 derived class and never become non-primary.) */
1494 #define SET_BINFO_NEW_VTABLE_MARKED(B) \
1495 (BINFO_NEW_VTABLE_MARKED (B) = 1, \
1496 my_friendly_assert (!BINFO_PRIMARY_P (B) \
1497 || TREE_VIA_VIRTUAL (B), 20000517), \
1498 my_friendly_assert (CLASSTYPE_VFIELDS (BINFO_TYPE (B)) != NULL_TREE, \
1501 /* Nonzero means this class has done dfs_pushdecls. */
1502 #define BINFO_PUSHDECLS_MARKED(NODE) BINFO_VTABLE_PATH_MARKED (NODE)
1504 /* Nonzero if this BINFO is a primary base class. Note, this can be
1505 set for non-canononical virtual bases. For a virtual primary base
1506 you might also need to check whether it is canonical. */
1508 #define BINFO_PRIMARY_P(NODE) \
1509 (BINFO_PRIMARY_BASE_OF (NODE) != NULL_TREE)
1511 /* The index in the VTT where this subobject's sub-VTT can be found.
1512 NULL_TREE if there is no sub-VTT. */
1513 #define BINFO_SUBVTT_INDEX(NODE) TREE_VEC_ELT (NODE, BINFO_ELTS + 0)
1515 /* The index in the VTT where the vptr for this subobject can be
1516 found. NULL_TREE if there is no secondary vptr in the VTT. */
1517 #define BINFO_VPTR_INDEX(NODE) TREE_VEC_ELT (NODE, BINFO_ELTS + 1)
1519 /* The binfo of which NODE is a primary base. (This is different from
1520 BINFO_INHERITANCE_CHAIN for virtual base because a virtual base is
1521 sometimes a primary base for a class for which it is not an
1523 #define BINFO_PRIMARY_BASE_OF(NODE) TREE_VEC_ELT (NODE, BINFO_ELTS + 2)
1525 /* C++ binfos have 3 additional entries. */
1527 #define BINFO_LANG_ELTS (BINFO_ELTS + 3)
1529 /* Nonzero if this binfo is for a dependent base - one that should not
1531 #define BINFO_DEPENDENT_BASE_P(NODE) TREE_LANG_FLAG_1(NODE)
1533 /* Nonzero if this binfo has lost its primary base binfo (because that
1534 is a nearly-empty virtual base that has been taken by some other
1535 base in the complete hierarchy. */
1536 #define BINFO_LOST_PRIMARY_P(NODE) TREE_LANG_FLAG_2 (NODE)
1538 /* Nonzero if this binfo is an indirect primary base, i.e. a virtual
1539 base that is a primary base of some of other class in the
1541 #define BINFO_INDIRECT_PRIMARY_P(NODE) TREE_USED (NODE)
1543 /* Used by various search routines. */
1544 #define IDENTIFIER_MARKED(NODE) TREE_LANG_FLAG_0 (NODE)
1546 /* A TREE_LIST of the vcall indices associated with the class NODE.
1547 The TREE_PURPOSE of each node is a FUNCTION_DECL for a virtual
1548 function. The TREE_VALUE is the index into the virtual table where
1549 the vcall offset for that function is stored, when NODE is a
1551 #define CLASSTYPE_VCALL_INDICES(NODE) \
1552 (LANG_TYPE_CLASS_CHECK (NODE)->vcall_indices)
1554 /* The various vtables for the class NODE. The primary vtable will be
1555 first, followed by the construction vtables and VTT, if any. */
1556 #define CLASSTYPE_VTABLES(NODE) \
1557 (LANG_TYPE_CLASS_CHECK (NODE)->vtables)
1559 /* The std::type_info variable representing this class, or NULL if no
1560 such variable has been created. This field is only set for the
1561 TYPE_MAIN_VARIANT of the class. */
1562 #define CLASSTYPE_TYPEINFO_VAR(NODE) \
1563 (LANG_TYPE_CLASS_CHECK (NODE)->typeinfo_var)
1565 /* Accessor macros for the vfield slots in structures. */
1567 /* List of virtual table fields that this type contains (both the primary
1568 and secondaries). The TREE_VALUE is the class type where the vtable
1569 field was introduced. For a vtable field inherited from the primary
1570 base, or introduced by this class, the TREE_PURPOSE is NULL. For
1571 other vtable fields (those from non-primary bases), the
1572 TREE_PURPOSE is the BINFO of the base through which the vtable was
1574 #define CLASSTYPE_VFIELDS(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->vfields)
1576 /* Get the BINFO that introduced this vtable into the hierarchy (will
1577 be NULL for those created at this level, or from a primary
1579 #define VF_BINFO_VALUE(NODE) TREE_PURPOSE (NODE)
1581 /* Get the TYPE that introduced this vtable into the hierarchy (always
1583 #define VF_BASETYPE_VALUE(NODE) TREE_VALUE (NODE)
1585 /* Accessor macros for the BINFO_VIRTUALS list. */
1587 /* The number of bytes by which to adjust the `this' pointer when
1588 calling this virtual function. Subtract this value from the this
1589 pointer. Always non-NULL, might be constant zero though. */
1590 #define BV_DELTA(NODE) (TREE_PURPOSE (NODE))
1592 /* If non-NULL, the vtable index at which to find the vcall offset
1593 when calling this virtual function. Add the value at that vtable
1594 index to the this pointer. */
1595 #define BV_VCALL_INDEX(NODE) (TREE_TYPE (NODE))
1597 /* The function to call. */
1598 #define BV_FN(NODE) (TREE_VALUE (NODE))
1601 /* Nonzero for TREE_LIST node means that this list of things
1602 is a list of parameters, as opposed to a list of expressions. */
1603 #define TREE_PARMLIST(NODE) (TREE_LANG_FLAG_2 (NODE))
1605 /* Nonzero for a parmlist means that this parmlist ended in ... */
1606 #define PARMLIST_ELLIPSIS_P(NODE) TREE_LANG_FLAG_0 (NODE)
1608 /* For FUNCTION_TYPE or METHOD_TYPE, a list of the exceptions that
1609 this type can raise. Each TREE_VALUE is a _TYPE. The TREE_VALUE
1610 will be NULL_TREE to indicate a throw specification of `()', or
1611 no exceptions allowed. */
1612 #define TYPE_RAISES_EXCEPTIONS(NODE) TYPE_BINFO (NODE)
1614 /* For FUNCTION_TYPE or METHOD_TYPE, return 1 iff it is declared `throw()'. */
1615 #define TYPE_NOTHROW_P(NODE) \
1616 (TYPE_RAISES_EXCEPTIONS (NODE) \
1617 && TREE_VALUE (TYPE_RAISES_EXCEPTIONS (NODE)) == NULL_TREE)
1619 /* The binding level associated with the namespace. */
1620 #define NAMESPACE_LEVEL(NODE) \
1621 (DECL_LANG_SPECIFIC (NODE)->decl_flags.u.level)
1624 /* If a DECL has DECL_LANG_SPECIFIC, it is either a lang_decl_flags or
1625 a lang_decl (which has lang_decl_flags as its initial prefix).
1626 This macro is nonzero for tree nodes whose DECL_LANG_SPECIFIC is
1627 the full lang_decl, and not just lang_decl_flags. */
1628 #define CAN_HAVE_FULL_LANG_DECL_P(NODE) \
1629 (!(TREE_CODE (NODE) == VAR_DECL \
1630 || TREE_CODE (NODE) == CONST_DECL \
1631 || TREE_CODE (NODE) == FIELD_DECL \
1632 || TREE_CODE (NODE) == USING_DECL))
1634 struct lang_decl_flags GTY(())
1636 struct c_lang_decl base;
1638 ENUM_BITFIELD(languages) language : 8;
1640 unsigned operator_attr : 1;
1641 unsigned constructor_attr : 1;
1642 unsigned destructor_attr : 1;
1643 unsigned friend_attr : 1;
1644 unsigned static_function : 1;
1645 unsigned pure_virtual : 1;
1646 unsigned has_in_charge_parm_p : 1;
1647 unsigned has_vtt_parm_p : 1;
1649 unsigned deferred : 1;
1650 unsigned use_template : 2;
1651 unsigned nonconverting : 1;
1652 unsigned not_really_extern : 1;
1653 unsigned needs_final_overrider : 1;
1654 unsigned initialized_in_class : 1;
1655 unsigned assignment_operator_p : 1;
1657 unsigned global_ctor_p : 1;
1658 unsigned global_dtor_p : 1;
1659 unsigned anticipated_p : 1;
1660 unsigned template_conv_p : 1;
1663 unsigned can_be_full : 1;
1664 unsigned this_thunk_p : 1;
1667 /* In a FUNCTION_DECL, VAR_DECL, TYPE_DECL, or TEMPLATE_DECL, this
1668 is DECL_TEMPLATE_INFO. */
1669 tree GTY ((tag ("0"))) template_info;
1671 /* In a NAMESPACE_DECL, this is NAMESPACE_LEVEL. */
1672 struct cp_binding_level * GTY ((tag ("1"))) level;
1673 } GTY ((desc ("%1.u1sel"))) u;
1675 union lang_decl_u2 {
1676 /* This is DECL_ACCESS. */
1677 tree GTY ((tag ("0"))) access;
1679 /* For VAR_DECL in function, this is DECL_DISCRIMINATOR. */
1680 int GTY ((tag ("1"))) discriminator;
1682 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
1683 THUNK_VIRTUAL_OFFSET. */
1684 tree GTY((tag ("2"))) virtual_offset;
1685 } GTY ((desc ("%1.u2sel"))) u2;
1688 /* sorted_fields is sorted based on a pointer, so we need to be able
1689 to resort it if pointers get rearranged. */
1691 struct lang_decl GTY(())
1693 struct lang_decl_flags decl_flags;
1697 struct full_lang_decl
1699 /* For a non-thunk function decl, this is a tree list of
1700 friendly classes. For a thunk function decl, it is the
1701 thunked to function decl. */
1702 tree befriending_classes;
1704 /* For a non-virtual FUNCTION_DECL, this is
1705 DECL_FRIEND_CONTEXT. For a virtual FUNCTION_DECL for which
1706 DECL_THIS_THUNK_P does not hold, this is DECL_THUNKS. Both
1707 this pointer and result pointer adjusting thunks are
1708 chained here. This pointer thunks to return pointer thunks
1709 will be chained on the return pointer thunk. */
1712 /* In a FUNCTION_DECL, this is DECL_CLONED_FUNCTION. */
1713 tree cloned_function;
1715 /* In a FUNCTION_DECL for which THUNK_P holds, this is
1716 THUNK_FIXED_OFFSET. */
1717 HOST_WIDE_INT fixed_offset;
1719 /* In an overloaded operator, this is the value of
1720 DECL_OVERLOADED_OPERATOR_P. */
1721 enum tree_code operator_code;
1724 unsigned pending_inline_p : 1;
1728 tree GTY ((tag ("0"), reorder ("resort_sorted_fields")))
1730 struct cp_token_cache * GTY ((tag ("2"))) pending_inline_info;
1731 struct language_function * GTY ((tag ("1")))
1732 saved_language_function;
1733 } GTY ((desc ("%1.u3sel + %1.pending_inline_p"))) u;
1734 } GTY ((tag ("1"))) f;
1735 } GTY ((desc ("%1.decl_flags.can_be_full"))) u;
1738 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1740 #define LANG_DECL_U2_CHECK(NODE, TF) __extension__ \
1741 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
1742 if (lt->decl_flags.u2sel != TF) \
1743 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1744 <->decl_flags.u2; })
1748 #define LANG_DECL_U2_CHECK(NODE, TF) \
1749 (&DECL_LANG_SPECIFIC (NODE)->decl_flags.u2)
1751 #endif /* ENABLE_TREE_CHECKING */
1753 /* DECL_NEEDED_P holds of a declaration when we need to emit its
1754 definition. This is true when the back-end tells us that
1755 the symbol has been referenced in the generated code. If, however,
1756 we are not generating code, then it is also true when a symbol has
1757 just been used somewhere, even if it's not really needed. We need
1758 anything that isn't comdat, but we don't know for sure whether or
1759 not something is comdat until end-of-file. */
1760 #define DECL_NEEDED_P(DECL) \
1761 ((at_eof && TREE_PUBLIC (DECL) && !DECL_COMDAT (DECL)) \
1762 || (DECL_ASSEMBLER_NAME_SET_P (DECL) \
1763 && TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (DECL))) \
1764 || (((flag_syntax_only || flag_unit_at_a_time) && TREE_USED (DECL))))
1766 /* For a FUNCTION_DECL or a VAR_DECL, the language linkage for the
1767 declaration. Some entities (like a member function in a local
1768 class, or a local variable) do not have linkage at all, and this
1769 macro should not be used in those cases.
1771 Implementation note: A FUNCTION_DECL without DECL_LANG_SPECIFIC was
1772 created by language-independent code, and has C linkage. Most
1773 VAR_DECLs have C++ linkage, and do not have DECL_LANG_SPECIFIC, but
1774 we do create DECL_LANG_SPECIFIC for variables with non-C++ linkage. */
1775 #define DECL_LANGUAGE(NODE) \
1776 (DECL_LANG_SPECIFIC (NODE) \
1777 ? DECL_LANG_SPECIFIC (NODE)->decl_flags.language \
1778 : (TREE_CODE (NODE) == FUNCTION_DECL \
1779 ? lang_c : lang_cplusplus))
1781 /* Set the language linkage for NODE to LANGUAGE. */
1782 #define SET_DECL_LANGUAGE(NODE, LANGUAGE) \
1783 (DECL_LANG_SPECIFIC (NODE)->decl_flags.language = (LANGUAGE))
1785 /* For FUNCTION_DECLs: nonzero means that this function is a constructor. */
1786 #define DECL_CONSTRUCTOR_P(NODE) \
1787 (DECL_LANG_SPECIFIC (NODE)->decl_flags.constructor_attr)
1789 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a complete
1791 #define DECL_COMPLETE_CONSTRUCTOR_P(NODE) \
1792 (DECL_CONSTRUCTOR_P (NODE) \
1793 && DECL_NAME (NODE) == complete_ctor_identifier)
1795 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a base
1797 #define DECL_BASE_CONSTRUCTOR_P(NODE) \
1798 (DECL_CONSTRUCTOR_P (NODE) \
1799 && DECL_NAME (NODE) == base_ctor_identifier)
1801 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor, but not either the
1802 specialized in-charge constructor or the specialized not-in-charge
1804 #define DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P(NODE) \
1805 (DECL_CONSTRUCTOR_P (NODE) && !DECL_CLONED_FUNCTION_P (NODE))
1807 /* Nonzero if NODE (a FUNCTION_DECL) is a copy constructor. */
1808 #define DECL_COPY_CONSTRUCTOR_P(NODE) \
1809 (DECL_CONSTRUCTOR_P (NODE) && copy_fn_p (NODE) > 0)
1811 /* Nonzero if NODE is a destructor. */
1812 #define DECL_DESTRUCTOR_P(NODE) \
1813 (DECL_LANG_SPECIFIC (NODE)->decl_flags.destructor_attr)
1815 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor, but not the
1816 specialized in-charge constructor, in-charge deleting constructor,
1817 or the the base destructor. */
1818 #define DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P(NODE) \
1819 (DECL_DESTRUCTOR_P (NODE) && !DECL_CLONED_FUNCTION_P (NODE))
1821 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
1823 #define DECL_COMPLETE_DESTRUCTOR_P(NODE) \
1824 (DECL_DESTRUCTOR_P (NODE) \
1825 && DECL_NAME (NODE) == complete_dtor_identifier)
1827 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a base
1829 #define DECL_BASE_DESTRUCTOR_P(NODE) \
1830 (DECL_DESTRUCTOR_P (NODE) \
1831 && DECL_NAME (NODE) == base_dtor_identifier)
1833 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
1834 object that deletes the object after it has been destroyed. */
1835 #define DECL_DELETING_DESTRUCTOR_P(NODE) \
1836 (DECL_DESTRUCTOR_P (NODE) \
1837 && DECL_NAME (NODE) == deleting_dtor_identifier)
1839 /* Nonzero if NODE (a FUNCTION_DECL) is a cloned constructor or
1841 #define DECL_CLONED_FUNCTION_P(NODE) \
1842 ((TREE_CODE (NODE) == FUNCTION_DECL \
1843 || TREE_CODE (NODE) == TEMPLATE_DECL) \
1844 && DECL_LANG_SPECIFIC (NODE) \
1845 && DECL_CLONED_FUNCTION (NODE) != NULL_TREE)
1847 /* If DECL_CLONED_FUNCTION_P holds, this is the function that was
1849 #define DECL_CLONED_FUNCTION(NODE) \
1850 (DECL_LANG_SPECIFIC (NODE)->u.f.cloned_function)
1852 /* Nonzero if NODE has DECL_DISCRIMINATOR and not DECL_ACCESS. */
1853 #define DECL_DISCRIMINATOR_P(NODE) \
1854 (TREE_CODE (NODE) == VAR_DECL \
1855 && DECL_FUNCTION_SCOPE_P (NODE))
1857 /* Discriminator for name mangling. */
1858 #define DECL_DISCRIMINATOR(NODE) (LANG_DECL_U2_CHECK (NODE, 1)->discriminator)
1860 /* Nonzero if the VTT parm has been added to NODE. */
1861 #define DECL_HAS_VTT_PARM_P(NODE) \
1862 (DECL_LANG_SPECIFIC (NODE)->decl_flags.has_vtt_parm_p)
1864 /* Nonzero if NODE is a FUNCTION_DECL for which a VTT parameter is
1866 #define DECL_NEEDS_VTT_PARM_P(NODE) \
1867 (TYPE_USES_VIRTUAL_BASECLASSES (DECL_CONTEXT (NODE)) \
1868 && (DECL_BASE_CONSTRUCTOR_P (NODE) \
1869 || DECL_BASE_DESTRUCTOR_P (NODE)))
1871 /* Nonzero if NODE is a user-defined conversion operator. */
1872 #define DECL_CONV_FN_P(NODE) \
1873 (IDENTIFIER_TYPENAME_P (DECL_NAME (NODE)))
1875 /* If FN is a conversion operator, the type to which it converts.
1876 Otherwise, NULL_TREE. */
1877 #define DECL_CONV_FN_TYPE(FN) \
1878 (DECL_CONV_FN_P (FN) ? TREE_TYPE (DECL_NAME (FN)) : NULL_TREE)
1880 /* Nonzero if NODE, which is a TEMPLATE_DECL, is a template
1881 conversion operator to a type dependent on the innermost template
1883 #define DECL_TEMPLATE_CONV_FN_P(NODE) \
1884 (DECL_LANG_SPECIFIC (NODE)->decl_flags.template_conv_p)
1886 /* Set the overloaded operator code for NODE to CODE. */
1887 #define SET_OVERLOADED_OPERATOR_CODE(NODE, CODE) \
1888 (DECL_LANG_SPECIFIC (NODE)->u.f.operator_code = (CODE))
1890 /* If NODE is an overloaded operator, then this returns the TREE_CODE
1891 associated with the overloaded operator.
1892 DECL_ASSIGNMENT_OPERATOR_P must also be checked to determine
1893 whether or not NODE is an assignment operator. If NODE is not an
1894 overloaded operator, ERROR_MARK is returned. Since the numerical
1895 value of ERROR_MARK is zero, this macro can be used as a predicate
1896 to test whether or not NODE is an overloaded operator. */
1897 #define DECL_OVERLOADED_OPERATOR_P(NODE) \
1898 (IDENTIFIER_OPNAME_P (DECL_NAME (NODE)) \
1899 ? DECL_LANG_SPECIFIC (NODE)->u.f.operator_code : ERROR_MARK)
1901 /* Nonzero if NODE is an assignment operator. */
1902 #define DECL_ASSIGNMENT_OPERATOR_P(NODE) \
1903 (DECL_LANG_SPECIFIC (NODE)->decl_flags.assignment_operator_p)
1905 /* For FUNCTION_DECLs: nonzero means that this function is a
1906 constructor or a destructor with an extra in-charge parameter to
1907 control whether or not virtual bases are constructed. */
1908 #define DECL_HAS_IN_CHARGE_PARM_P(NODE) \
1909 (DECL_LANG_SPECIFIC (NODE)->decl_flags.has_in_charge_parm_p)
1911 /* Nonzero if NODE is an overloaded `operator delete[]' function. */
1912 #define DECL_ARRAY_DELETE_OPERATOR_P(NODE) \
1913 (DECL_OVERLOADED_OPERATOR_P (NODE) == VEC_DELETE_EXPR)
1915 /* Nonzero for _DECL means that this decl appears in (or will appear
1916 in) as a member in a RECORD_TYPE or UNION_TYPE node. It is also for
1917 detecting circularity in case members are multiply defined. In the
1918 case of a VAR_DECL, it is also used to determine how program storage
1919 should be allocated. */
1920 #define DECL_IN_AGGR_P(NODE) (DECL_LANG_FLAG_3 (NODE))
1922 /* Nonzero for a VAR_DECL means that the variable's initialization has
1924 #define DECL_INITIALIZED_P(NODE) \
1925 (TREE_LANG_FLAG_1 (VAR_DECL_CHECK (NODE)))
1927 /* Nonzero if the DECL was initialized in the class definition itself,
1928 rather than outside the class. This is used for both static member
1929 VAR_DECLS, and FUNTION_DECLS that are defined in the class. */
1930 #define DECL_INITIALIZED_IN_CLASS_P(DECL) \
1931 (DECL_LANG_SPECIFIC (DECL)->decl_flags.initialized_in_class)
1933 /* Nonzero for FUNCTION_DECL means that this decl is just a
1934 friend declaration, and should not be added to the list of
1935 member functions for this class. */
1936 #define DECL_FRIEND_P(NODE) (DECL_LANG_SPECIFIC (NODE)->decl_flags.friend_attr)
1938 /* A TREE_LIST of the types which have befriended this FUNCTION_DECL. */
1939 #define DECL_BEFRIENDING_CLASSES(NODE) \
1940 (DECL_LANG_SPECIFIC (NODE)->u.f.befriending_classes)
1942 /* Nonzero for FUNCTION_DECL means that this decl is a static
1944 #define DECL_STATIC_FUNCTION_P(NODE) \
1945 (DECL_LANG_SPECIFIC (NODE)->decl_flags.static_function)
1947 /* Nonzero for FUNCTION_DECL means that this decl is a non-static
1949 #define DECL_NONSTATIC_MEMBER_FUNCTION_P(NODE) \
1950 (TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE)
1952 /* Nonzero for FUNCTION_DECL means that this decl is a member function
1953 (static or non-static). */
1954 #define DECL_FUNCTION_MEMBER_P(NODE) \
1955 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) || DECL_STATIC_FUNCTION_P (NODE))
1957 /* Nonzero for FUNCTION_DECL means that this member function
1958 has `this' as const X *const. */
1959 #define DECL_CONST_MEMFUNC_P(NODE) \
1960 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
1961 && CP_TYPE_CONST_P (TREE_TYPE (TREE_VALUE \
1962 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
1964 /* Nonzero for FUNCTION_DECL means that this member function
1965 has `this' as volatile X *const. */
1966 #define DECL_VOLATILE_MEMFUNC_P(NODE) \
1967 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
1968 && CP_TYPE_VOLATILE_P (TREE_TYPE (TREE_VALUE \
1969 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
1971 /* Nonzero for a DECL means that this member is a non-static member. */
1972 #define DECL_NONSTATIC_MEMBER_P(NODE) \
1973 ((TREE_CODE (NODE) == FUNCTION_DECL \
1974 && DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE)) \
1975 || TREE_CODE (NODE) == FIELD_DECL)
1977 /* Nonzero for _DECL means that this member object type
1979 #define DECL_MUTABLE_P(NODE) (DECL_LANG_FLAG_0 (NODE))
1981 /* Nonzero for _DECL means that this constructor is a non-converting
1983 #define DECL_NONCONVERTING_P(NODE) \
1984 (DECL_LANG_SPECIFIC (NODE)->decl_flags.nonconverting)
1986 /* Nonzero for FUNCTION_DECL means that this member function is a pure
1987 virtual function. */
1988 #define DECL_PURE_VIRTUAL_P(NODE) \
1989 (DECL_LANG_SPECIFIC (NODE)->decl_flags.pure_virtual)
1991 /* Nonzero for FUNCTION_DECL means that this member function
1992 must be overridden by derived classes. */
1993 #define DECL_NEEDS_FINAL_OVERRIDER_P(NODE) \
1994 (DECL_LANG_SPECIFIC (NODE)->decl_flags.needs_final_overrider)
1996 /* The thunks associated with NODE, a FUNCTION_DECL. */
1997 #define DECL_THUNKS(NODE) \
1998 (DECL_LANG_SPECIFIC (NODE)->u.f.context)
2000 /* Nonzero if NODE is a thunk, rather than an ordinary function. */
2001 #define DECL_THUNK_P(NODE) \
2002 (TREE_CODE (NODE) == FUNCTION_DECL \
2003 && DECL_LANG_FLAG_7 (NODE))
2005 /* Nonzero if NODE is a this pointer adjusting thunk. */
2006 #define DECL_THIS_THUNK_P(NODE) \
2007 (DECL_THUNK_P (NODE) && DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p)
2009 /* Nonzero if NODE is a result pointer adjusting thunk. */
2010 #define DECL_RESULT_THUNK_P(NODE) \
2011 (DECL_THUNK_P (NODE) && !DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p)
2013 /* Nonzero if NODE is a FUNCTION_DECL, but not a thunk. */
2014 #define DECL_NON_THUNK_FUNCTION_P(NODE) \
2015 (TREE_CODE (NODE) == FUNCTION_DECL && !DECL_THUNK_P (NODE))
2017 /* Nonzero if NODE is `extern "C"'. */
2018 #define DECL_EXTERN_C_P(NODE) \
2019 (DECL_LANGUAGE (NODE) == lang_c)
2021 /* Nonzero if NODE is an `extern "C"' function. */
2022 #define DECL_EXTERN_C_FUNCTION_P(NODE) \
2023 (DECL_NON_THUNK_FUNCTION_P (NODE) && DECL_EXTERN_C_P (NODE))
2025 /* Set DECL_THUNK_P for node. */
2026 #define SET_DECL_THUNK_P(NODE, THIS_ADJUSTING) \
2027 (DECL_LANG_FLAG_7 (NODE) = 1, \
2028 DECL_LANG_SPECIFIC (NODE)->u.f.u3sel = 1, \
2029 DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p = (THIS_ADJUSTING))
2031 /* Nonzero if this DECL is the __PRETTY_FUNCTION__ variable in a
2032 template function. */
2033 #define DECL_PRETTY_FUNCTION_P(NODE) \
2034 (TREE_LANG_FLAG_0 (NODE))
2036 /* The _TYPE context in which this _DECL appears. This field holds the
2037 class where a virtual function instance is actually defined. */
2038 #define DECL_CLASS_CONTEXT(NODE) \
2039 (DECL_CLASS_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : NULL_TREE)
2041 /* For a non-member friend function, the class (if any) in which this
2042 friend was defined. For example, given:
2044 struct S { friend void f (); };
2046 the DECL_FRIEND_CONTEXT for `f' will be `S'. */
2047 #define DECL_FRIEND_CONTEXT(NODE) \
2048 ((DECL_FRIEND_P (NODE) && !DECL_FUNCTION_MEMBER_P (NODE)) \
2049 ? DECL_LANG_SPECIFIC (NODE)->u.f.context \
2052 /* Set the DECL_FRIEND_CONTEXT for NODE to CONTEXT. */
2053 #define SET_DECL_FRIEND_CONTEXT(NODE, CONTEXT) \
2054 (DECL_LANG_SPECIFIC (NODE)->u.f.context = (CONTEXT))
2056 /* NULL_TREE in DECL_CONTEXT represents the global namespace. */
2057 #define CP_DECL_CONTEXT(NODE) \
2058 (DECL_CONTEXT (NODE) ? DECL_CONTEXT (NODE) : global_namespace)
2059 #define FROB_CONTEXT(NODE) ((NODE) == global_namespace ? NULL_TREE : (NODE))
2061 /* 1 iff NODE has namespace scope, including the global namespace. */
2062 #define DECL_NAMESPACE_SCOPE_P(NODE) \
2063 (!DECL_TEMPLATE_PARM_P (NODE) \
2064 && TREE_CODE (CP_DECL_CONTEXT (NODE)) == NAMESPACE_DECL)
2066 /* 1 iff NODE is a class member. */
2067 #define DECL_CLASS_SCOPE_P(NODE) \
2068 (DECL_CONTEXT (NODE) && TYPE_P (DECL_CONTEXT (NODE)))
2070 /* 1 iff NODE is function-local. */
2071 #define DECL_FUNCTION_SCOPE_P(NODE) \
2072 (DECL_CONTEXT (NODE) \
2073 && TREE_CODE (DECL_CONTEXT (NODE)) == FUNCTION_DECL)
2075 /* 1 iff VAR_DECL node NODE is virtual table or VTT. */
2076 #define DECL_VTABLE_OR_VTT_P(NODE) TREE_LANG_FLAG_5 (VAR_DECL_CHECK (NODE))
2078 /* 1 iff NODE is function-local, but for types. */
2079 #define LOCAL_CLASS_P(NODE) \
2080 (decl_function_context (TYPE_MAIN_DECL (NODE)) != NULL_TREE)
2082 /* For a NAMESPACE_DECL: the list of using namespace directives
2083 The PURPOSE is the used namespace, the value is the namespace
2084 that is the common ancestor. */
2085 #define DECL_NAMESPACE_USING(NODE) DECL_VINDEX (NAMESPACE_DECL_CHECK (NODE))
2087 /* In a NAMESPACE_DECL, the DECL_INITIAL is used to record all users
2088 of a namespace, to record the transitive closure of using namespace. */
2089 #define DECL_NAMESPACE_USERS(NODE) DECL_INITIAL (NAMESPACE_DECL_CHECK (NODE))
2091 /* In a NAMESPACE_DECL, points to the original namespace if this is
2092 a namespace alias. */
2093 #define DECL_NAMESPACE_ALIAS(NODE) \
2094 DECL_ABSTRACT_ORIGIN (NAMESPACE_DECL_CHECK (NODE))
2095 #define ORIGINAL_NAMESPACE(NODE) \
2096 (DECL_NAMESPACE_ALIAS (NODE) ? DECL_NAMESPACE_ALIAS (NODE) : (NODE))
2098 /* Nonzero if NODE is the std namespace. */
2099 #define DECL_NAMESPACE_STD_P(NODE) \
2100 (TREE_CODE (NODE) == NAMESPACE_DECL \
2101 && CP_DECL_CONTEXT (NODE) == global_namespace \
2102 && DECL_NAME (NODE) == std_identifier)
2104 /* In a non-local VAR_DECL with static storage duration, this is the
2105 initialization priority. If this value is zero, the NODE will be
2106 initialized at the DEFAULT_INIT_PRIORITY. */
2107 #define DECL_INIT_PRIORITY(NODE) (VAR_DECL_CHECK (NODE)->decl.u2.i)
2109 /* In a TREE_LIST concatenating using directives, indicate indirect
2111 #define TREE_INDIRECT_USING(NODE) (TREE_LIST_CHECK (NODE)->common.lang_flag_0)
2113 /* In a VAR_DECL for a variable declared in a for statement,
2114 this is the shadowed (local) variable. */
2115 #define DECL_SHADOWED_FOR_VAR(NODE) DECL_RESULT_FLD(VAR_DECL_CHECK (NODE))
2117 /* In a FUNCTION_DECL, this is nonzero if this function was defined in
2118 the class definition. We have saved away the text of the function,
2119 but have not yet processed it. */
2120 #define DECL_PENDING_INLINE_P(NODE) \
2121 (DECL_LANG_SPECIFIC (NODE)->u.f.pending_inline_p)
2123 /* If DECL_PENDING_INLINE_P holds, this is the saved text of the
2125 #define DECL_PENDING_INLINE_INFO(NODE) \
2126 (DECL_LANG_SPECIFIC (NODE)->u.f.u.pending_inline_info)
2128 /* For a TYPE_DECL: if this structure has many fields, we'll sort them
2129 and put them into a TREE_VEC. */
2130 #define DECL_SORTED_FIELDS(NODE) \
2131 (DECL_LANG_SPECIFIC (TYPE_DECL_CHECK (NODE))->u.f.u.sorted_fields)
2133 /* True if on the deferred_fns (see decl2.c) list. */
2134 #define DECL_DEFERRED_FN(DECL) \
2135 (DECL_LANG_SPECIFIC (DECL)->decl_flags.deferred)
2137 /* For a VAR_DECL, FUNCTION_DECL, TYPE_DECL or TEMPLATE_DECL:
2138 template-specific information. */
2139 #define DECL_TEMPLATE_INFO(NODE) \
2140 (DECL_LANG_SPECIFIC (VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK (NODE)) \
2141 ->decl_flags.u.template_info)
2143 /* For a VAR_DECL, indicates that the variable has been processed.
2144 This flag is set and unset throughout the code; it is always
2145 used for a temporary purpose. */
2146 #define DECL_VAR_MARKED_P(NODE) \
2147 (DECL_LANG_FLAG_4 (VAR_DECL_CHECK (NODE)))
2149 /* Template information for a RECORD_TYPE or UNION_TYPE. */
2150 #define CLASSTYPE_TEMPLATE_INFO(NODE) \
2151 (LANG_TYPE_CLASS_CHECK (RECORD_OR_UNION_TYPE_CHECK (NODE))->template_info)
2153 /* Template information for an ENUMERAL_TYPE. Although an enumeration may
2154 not be a primary template, it may be declared within the scope of a
2155 primary template and the enumeration constants may depend on
2156 non-type template parameters. */
2157 #define ENUM_TEMPLATE_INFO(NODE) (TYPE_BINFO (ENUMERAL_TYPE_CHECK (NODE)))
2159 /* Template information for a template template parameter. */
2160 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO(NODE) \
2161 (LANG_TYPE_CLASS_CHECK (BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK (NODE)) \
2164 /* Template information for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2165 #define TYPE_TEMPLATE_INFO(NODE) \
2166 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2167 ? ENUM_TEMPLATE_INFO (NODE) : \
2168 (TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM \
2169 ? TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO (NODE) : \
2170 (TYPE_LANG_SPECIFIC (NODE) \
2171 ? CLASSTYPE_TEMPLATE_INFO (NODE) \
2174 /* Set the template information for an ENUMERAL_, RECORD_, or
2175 UNION_TYPE to VAL. */
2176 #define SET_TYPE_TEMPLATE_INFO(NODE, VAL) \
2177 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2178 ? (ENUM_TEMPLATE_INFO (NODE) = (VAL)) \
2179 : (CLASSTYPE_TEMPLATE_INFO (NODE) = (VAL)))
2181 #define TI_TEMPLATE(NODE) (TREE_PURPOSE (NODE))
2182 #define TI_ARGS(NODE) (TREE_VALUE (NODE))
2183 #define TI_PENDING_TEMPLATE_FLAG(NODE) TREE_LANG_FLAG_1 (NODE)
2185 /* We use TREE_VECs to hold template arguments. If there is only one
2186 level of template arguments, then the TREE_VEC contains the
2187 arguments directly. If there is more than one level of template
2188 arguments, then each entry in the TREE_VEC is itself a TREE_VEC,
2189 containing the template arguments for a single level. The first
2190 entry in the outer TREE_VEC is the outermost level of template
2191 parameters; the last is the innermost.
2193 It is incorrect to ever form a template argument vector containing
2194 only one level of arguments, but which is a TREE_VEC containing as
2195 its only entry the TREE_VEC for that level. */
2197 /* Nonzero if the template arguments is actually a vector of vectors,
2198 rather than just a vector. */
2199 #define TMPL_ARGS_HAVE_MULTIPLE_LEVELS(NODE) \
2200 ((NODE) != NULL_TREE \
2201 && TREE_CODE (NODE) == TREE_VEC \
2202 && TREE_VEC_LENGTH (NODE) > 0 \
2203 && TREE_VEC_ELT (NODE, 0) != NULL_TREE \
2204 && TREE_CODE (TREE_VEC_ELT (NODE, 0)) == TREE_VEC)
2206 /* The depth of a template argument vector. When called directly by
2207 the parser, we use a TREE_LIST rather than a TREE_VEC to represent
2208 template arguments. In fact, we may even see NULL_TREE if there
2209 are no template arguments. In both of those cases, there is only
2210 one level of template arguments. */
2211 #define TMPL_ARGS_DEPTH(NODE) \
2212 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (NODE) ? TREE_VEC_LENGTH (NODE) : 1)
2214 /* The LEVELth level of the template ARGS. The outermost level of
2215 args is level 1, not level 0. */
2216 #define TMPL_ARGS_LEVEL(ARGS, LEVEL) \
2217 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (ARGS) \
2218 ? TREE_VEC_ELT (ARGS, (LEVEL) - 1) : (ARGS))
2220 /* Set the LEVELth level of the template ARGS to VAL. This macro does
2221 not work with single-level argument vectors. */
2222 #define SET_TMPL_ARGS_LEVEL(ARGS, LEVEL, VAL) \
2223 (TREE_VEC_ELT (ARGS, (LEVEL) - 1) = (VAL))
2225 /* Accesses the IDXth parameter in the LEVELth level of the ARGS. */
2226 #define TMPL_ARG(ARGS, LEVEL, IDX) \
2227 (TREE_VEC_ELT (TMPL_ARGS_LEVEL (ARGS, LEVEL), IDX))
2229 /* Set the IDXth element in the LEVELth level of ARGS to VAL. This
2230 macro does not work with single-level argument vectors. */
2231 #define SET_TMPL_ARG(ARGS, LEVEL, IDX, VAL) \
2232 (TREE_VEC_ELT (TREE_VEC_ELT ((ARGS), (LEVEL) - 1), (IDX)) = (VAL))
2234 /* Given a single level of template arguments in NODE, return the
2235 number of arguments. */
2236 #define NUM_TMPL_ARGS(NODE) \
2237 ((NODE) == NULL_TREE ? 0 \
2238 : (TREE_CODE (NODE) == TREE_VEC \
2239 ? TREE_VEC_LENGTH (NODE) : list_length (NODE)))
2241 /* Returns the innermost level of template arguments in ARGS. */
2242 #define INNERMOST_TEMPLATE_ARGS(NODE) \
2243 (get_innermost_template_args ((NODE), 1))
2245 /* The number of levels of template parameters given by NODE. */
2246 #define TMPL_PARMS_DEPTH(NODE) \
2247 ((HOST_WIDE_INT) TREE_INT_CST_LOW (TREE_PURPOSE (NODE)))
2249 /* The TEMPLATE_DECL instantiated or specialized by NODE. This
2250 TEMPLATE_DECL will be the immediate parent, not the most general
2251 template. For example, in:
2253 template <class T> struct S { template <class U> void f(U); }
2255 the FUNCTION_DECL for S<int>::f<double> will have, as its
2256 DECL_TI_TEMPLATE, `template <class U> S<int>::f<U>'.
2258 As a special case, for a member friend template of a template
2259 class, this value will not be a TEMPLATE_DECL, but rather a
2260 LOOKUP_EXPR, IDENTIFIER_NODE or OVERLOAD indicating the name of
2261 the template and any explicit template arguments provided. For
2264 template <class T> struct S { friend void f<int>(int, double); }
2266 the DECL_TI_TEMPLATE will be a LOOKUP_EXPR for `f' and the
2267 DECL_TI_ARGS will be {int}. */
2268 #define DECL_TI_TEMPLATE(NODE) TI_TEMPLATE (DECL_TEMPLATE_INFO (NODE))
2270 /* The template arguments used to obtain this decl from the most
2271 general form of DECL_TI_TEMPLATE. For the example given for
2272 DECL_TI_TEMPLATE, the DECL_TI_ARGS will be {int, double}. These
2273 are always the full set of arguments required to instantiate this
2274 declaration from the most general template specialized here. */
2275 #define DECL_TI_ARGS(NODE) TI_ARGS (DECL_TEMPLATE_INFO (NODE))
2276 #define CLASSTYPE_TI_TEMPLATE(NODE) TI_TEMPLATE (CLASSTYPE_TEMPLATE_INFO (NODE))
2277 #define CLASSTYPE_TI_ARGS(NODE) TI_ARGS (CLASSTYPE_TEMPLATE_INFO (NODE))
2278 #define ENUM_TI_TEMPLATE(NODE) \
2279 TI_TEMPLATE (ENUM_TEMPLATE_INFO (NODE))
2280 #define ENUM_TI_ARGS(NODE) \
2281 TI_ARGS (ENUM_TEMPLATE_INFO (NODE))
2283 /* For a template instantiation TYPE, returns the TYPE corresponding
2284 to the primary template. Otherwise returns TYPE itself. */
2285 #define CLASSTYPE_PRIMARY_TEMPLATE_TYPE(TYPE) \
2286 ((CLASSTYPE_USE_TEMPLATE ((TYPE)) && !CLASSTYPE_TEMPLATE_SPECIALIZATION ((TYPE))) \
2287 ? TREE_TYPE (DECL_TEMPLATE_RESULT (DECL_PRIMARY_TEMPLATE \
2288 (CLASSTYPE_TI_TEMPLATE ((TYPE))))) \
2291 /* Like DECL_TI_TEMPLATE, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2292 #define TYPE_TI_TEMPLATE(NODE) \
2293 (TI_TEMPLATE (TYPE_TEMPLATE_INFO (NODE)))
2295 /* Like DECL_TI_ARGS, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2296 #define TYPE_TI_ARGS(NODE) \
2297 (TI_ARGS (TYPE_TEMPLATE_INFO (NODE)))
2299 #define INNERMOST_TEMPLATE_PARMS(NODE) TREE_VALUE (NODE)
2301 /* Nonzero if the NODE corresponds to the template parameters for a
2302 member template, whose inline definition is being processed after
2303 the class definition is complete. */
2304 #define TEMPLATE_PARMS_FOR_INLINE(NODE) TREE_LANG_FLAG_1 (NODE)
2306 /* In a FUNCTION_DECL, the saved language-specific per-function data. */
2307 #define DECL_SAVED_FUNCTION_DATA(NODE) \
2308 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (NODE)) \
2309 ->u.f.u.saved_language_function)
2311 #define NEW_EXPR_USE_GLOBAL(NODE) TREE_LANG_FLAG_0 (NODE)
2312 #define DELETE_EXPR_USE_GLOBAL(NODE) TREE_LANG_FLAG_0 (NODE)
2313 #define DELETE_EXPR_USE_VEC(NODE) TREE_LANG_FLAG_1 (NODE)
2314 #define LOOKUP_EXPR_GLOBAL(NODE) TREE_LANG_FLAG_0 (NODE)
2316 /* Nonzero if this AGGR_INIT_EXPR provides for initialization via a
2317 constructor call, rather than an ordinary function call. */
2318 #define AGGR_INIT_VIA_CTOR_P(NODE) \
2319 TREE_LANG_FLAG_0 (AGGR_INIT_EXPR_CHECK (NODE))
2321 /* The TYPE_MAIN_DECL for a class template type is a TYPE_DECL, not a
2322 TEMPLATE_DECL. This macro determines whether or not a given class
2323 type is really a template type, as opposed to an instantiation or
2324 specialization of one. */
2325 #define CLASSTYPE_IS_TEMPLATE(NODE) \
2326 (CLASSTYPE_TEMPLATE_INFO (NODE) \
2327 && !CLASSTYPE_USE_TEMPLATE (NODE) \
2328 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE)))
2330 /* The name used by the user to name the typename type. Typically,
2331 this is an IDENTIFIER_NODE, and the same as the DECL_NAME on the
2332 corresponding TYPE_DECL. However, this may also be a
2333 TEMPLATE_ID_EXPR if we had something like `typename X::Y<T>'. */
2334 #define TYPENAME_TYPE_FULLNAME(NODE) (TYPE_FIELDS (NODE))
2336 /* Nonzero in INTEGER_CST means that this int is negative by dint of
2337 using a twos-complement negated operand. */
2338 #define TREE_NEGATED_INT(NODE) TREE_LANG_FLAG_0 (INTEGER_CST_CHECK (NODE))
2340 /* Nonzero in any kind of _TYPE where conversions to base-classes may
2341 involve pointer arithmetic. If this is zero, then converting to
2342 a base-class never requires changing the value of the pointer. */
2343 #define TYPE_BASE_CONVS_MAY_REQUIRE_CODE_P(NODE) (TREE_LANG_FLAG_1 (NODE))
2347 A class that declares or inherits a virtual function is called a
2348 polymorphic class. */
2349 #define TYPE_POLYMORPHIC_P(NODE) (TREE_LANG_FLAG_2 (NODE))
2351 /* Nonzero if this class has a virtual function table pointer. */
2352 #define TYPE_CONTAINS_VPTR_P(NODE) \
2353 (TYPE_POLYMORPHIC_P (NODE) \
2354 || TYPE_USES_VIRTUAL_BASECLASSES (NODE))
2356 /* This flag is true of a local VAR_DECL if it was declared in a for
2357 statement, but we are no longer in the scope of the for. */
2358 #define DECL_DEAD_FOR_LOCAL(NODE) DECL_LANG_FLAG_7 (VAR_DECL_CHECK (NODE))
2360 /* This flag is set on a VAR_DECL that is a DECL_DEAD_FOR_LOCAL
2361 if we already emitted a warning about using it. */
2362 #define DECL_ERROR_REPORTED(NODE) DECL_LANG_FLAG_0 (VAR_DECL_CHECK (NODE))
2364 /* Nonzero if NODE is a FUNCTION_DECL (for a function with global
2365 scope) declared in a local scope. */
2366 #define DECL_LOCAL_FUNCTION_P(NODE) \
2367 DECL_LANG_FLAG_0 (FUNCTION_DECL_CHECK (NODE))
2369 /* Nonzero if NODE is a FUNCTION_DECL for a built-in function, and we have
2370 not yet seen a prototype for that function. */
2371 #define DECL_ANTICIPATED(NODE) \
2372 (DECL_LANG_SPECIFIC (DECL_CHECK (NODE))->decl_flags.anticipated_p)
2374 /* Record whether a typedef for type `int' was actually `signed int'. */
2375 #define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP)
2377 /* Returns nonzero if DECL has external linkage, as specified by the
2378 language standard. (This predicate may hold even when the
2379 corresponding entity is not actually given external linkage in the
2380 object file; see decl_linkage for details.) */
2381 #define DECL_EXTERNAL_LINKAGE_P(DECL) \
2382 (decl_linkage (DECL) == lk_external)
2384 #define INTEGRAL_CODE_P(CODE) \
2385 ((CODE) == INTEGER_TYPE || (CODE) == ENUMERAL_TYPE || (CODE) == BOOLEAN_TYPE)
2387 /* [basic.fundamental]
2389 Types bool, char, wchar_t, and the signed and unsigned integer types
2390 are collectively called integral types.
2392 Note that INTEGRAL_TYPE_P, as defined in tree.h, allows enumeration
2393 types as well, which is incorrect in C++. */
2394 #define CP_INTEGRAL_TYPE_P(TYPE) \
2395 (TREE_CODE (TYPE) == BOOLEAN_TYPE \
2396 || TREE_CODE (TYPE) == INTEGER_TYPE)
2398 /* Returns true if TYPE is an integral or enumeration name. */
2399 #define INTEGRAL_OR_ENUMERATION_TYPE_P(TYPE) \
2400 (CP_INTEGRAL_TYPE_P (TYPE) || TREE_CODE (TYPE) == ENUMERAL_TYPE)
2402 /* [basic.fundamental]
2404 Integral and floating types are collectively called arithmetic
2406 #define ARITHMETIC_TYPE_P(TYPE) \
2407 (CP_INTEGRAL_TYPE_P (TYPE) || TREE_CODE (TYPE) == REAL_TYPE)
2411 Arithmetic types, enumeration types, pointer types, and
2412 pointer-to-member types, are collectively called scalar types. */
2413 #define SCALAR_TYPE_P(TYPE) \
2414 (ARITHMETIC_TYPE_P (TYPE) \
2415 || TREE_CODE (TYPE) == ENUMERAL_TYPE \
2416 || TYPE_PTR_P (TYPE) \
2417 || TYPE_PTRMEM_P (TYPE) \
2418 || TYPE_PTRMEMFUNC_P (TYPE))
2422 An aggregate is an array or a class with no user-declared
2423 constructors, no private or protected non-static data members, no
2424 base classes, and no virtual functions.
2426 As an extension, we also treat vectors as aggregates. */
2427 #define CP_AGGREGATE_TYPE_P(TYPE) \
2428 (TREE_CODE (TYPE) == ARRAY_TYPE \
2429 || TREE_CODE (TYPE) == VECTOR_TYPE \
2430 || (CLASS_TYPE_P (TYPE) \
2431 && !CLASSTYPE_NON_AGGREGATE (TYPE)))
2433 /* Nonzero for a class type means that the class type has a
2434 user-declared constructor. */
2435 #define TYPE_HAS_CONSTRUCTOR(NODE) (TYPE_LANG_FLAG_1 (NODE))
2437 /* When appearing in an INDIRECT_REF, it means that the tree structure
2438 underneath is actually a call to a constructor. This is needed
2439 when the constructor must initialize local storage (which can
2440 be automatically destroyed), rather than allowing it to allocate
2441 space from the heap.
2443 When appearing in a SAVE_EXPR, it means that underneath
2444 is a call to a constructor.
2446 When appearing in a CONSTRUCTOR, it means that it was
2447 a GNU C constructor expression.
2449 When appearing in a FIELD_DECL, it means that this field
2450 has been duly initialized in its constructor. */
2451 #define TREE_HAS_CONSTRUCTOR(NODE) (TREE_LANG_FLAG_4 (NODE))
2453 #define EMPTY_CONSTRUCTOR_P(NODE) (TREE_CODE (NODE) == CONSTRUCTOR \
2454 && CONSTRUCTOR_ELTS (NODE) == NULL_TREE \
2455 && ! TREE_HAS_CONSTRUCTOR (NODE))
2457 /* Nonzero for _TYPE means that the _TYPE defines a destructor. */
2458 #define TYPE_HAS_DESTRUCTOR(NODE) (TYPE_LANG_FLAG_2 (NODE))
2460 /* Nonzero means that an object of this type can not be initialized using
2461 an initializer list. */
2462 #define CLASSTYPE_NON_AGGREGATE(NODE) \
2463 (LANG_TYPE_CLASS_CHECK (NODE)->non_aggregate)
2464 #define TYPE_NON_AGGREGATE_CLASS(NODE) \
2465 (IS_AGGR_TYPE (NODE) && CLASSTYPE_NON_AGGREGATE (NODE))
2467 /* Nonzero if there is a user-defined X::op=(x&) for this class. */
2468 #define TYPE_HAS_REAL_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_real_assign_ref)
2469 #define TYPE_HAS_COMPLEX_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_assign_ref)
2470 #define TYPE_HAS_ABSTRACT_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_abstract_assign_ref)
2471 #define TYPE_HAS_COMPLEX_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_init_ref)
2473 /* Nonzero if TYPE has a trivial destructor. From [class.dtor]:
2475 A destructor is trivial if it is an implicitly declared
2478 - all of the direct base classes of its class have trivial
2481 - for all of the non-static data members of its class that are
2482 of class type (or array thereof), each such class has a
2483 trivial destructor. */
2484 #define TYPE_HAS_TRIVIAL_DESTRUCTOR(NODE) \
2485 (!TYPE_HAS_NONTRIVIAL_DESTRUCTOR (NODE))
2487 /* Nonzero for _TYPE node means that this type does not have a trivial
2488 destructor. Therefore, destroying an object of this type will
2489 involve a call to a destructor. This can apply to objects of
2490 ARRAY_TYPE is the type of the elements needs a destructor. */
2491 #define TYPE_HAS_NONTRIVIAL_DESTRUCTOR(NODE) \
2492 (TYPE_LANG_FLAG_4 (NODE))
2494 /* Nonzero for class type means that copy initialization of this type can use
2496 #define TYPE_HAS_TRIVIAL_INIT_REF(NODE) \
2497 (TYPE_HAS_INIT_REF (NODE) && ! TYPE_HAS_COMPLEX_INIT_REF (NODE))
2499 /* Nonzero for class type means that assignment of this type can use
2501 #define TYPE_HAS_TRIVIAL_ASSIGN_REF(NODE) \
2502 (TYPE_HAS_ASSIGN_REF (NODE) && ! TYPE_HAS_COMPLEX_ASSIGN_REF (NODE))
2504 #define TYPE_PTRMEM_P(NODE) \
2505 (TREE_CODE (NODE) == POINTER_TYPE \
2506 && TREE_CODE (TREE_TYPE (NODE)) == OFFSET_TYPE)
2507 #define TYPE_PTR_P(NODE) \
2508 (TREE_CODE (NODE) == POINTER_TYPE \
2509 && TREE_CODE (TREE_TYPE (NODE)) != OFFSET_TYPE)
2510 #define TYPE_PTROB_P(NODE) \
2511 (TYPE_PTR_P (NODE) && TREE_CODE (TREE_TYPE (NODE)) != FUNCTION_TYPE \
2512 && TREE_CODE (TREE_TYPE (NODE)) != VOID_TYPE)
2513 #define TYPE_PTROBV_P(NODE) \
2514 (TYPE_PTR_P (NODE) && TREE_CODE (TREE_TYPE (NODE)) != FUNCTION_TYPE)
2515 #define TYPE_PTRFN_P(NODE) \
2516 (TREE_CODE (NODE) == POINTER_TYPE \
2517 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
2518 #define TYPE_REFFN_P(NODE) \
2519 (TREE_CODE (NODE) == REFERENCE_TYPE \
2520 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
2522 /* Nonzero for _TYPE node means that this type is a pointer to member
2524 #define TYPE_PTRMEMFUNC_P(NODE) \
2525 (TREE_CODE (NODE) == RECORD_TYPE \
2526 && TYPE_LANG_SPECIFIC (NODE) \
2527 && TYPE_PTRMEMFUNC_FLAG (NODE))
2529 #define TYPE_PTRMEMFUNC_FLAG(NODE) \
2530 (LANG_TYPE_CLASS_CHECK (NODE)->ptrmemfunc_flag)
2532 /* Indicates when overload resolution may resolve to a pointer to
2533 member function. [expr.unary.op]/3 */
2534 #define PTRMEM_OK_P(NODE) TREE_LANG_FLAG_0 (NODE)
2536 /* Get the POINTER_TYPE to the METHOD_TYPE associated with this
2537 pointer to member function. TYPE_PTRMEMFUNC_P _must_ be true,
2538 before using this macro. */
2539 #define TYPE_PTRMEMFUNC_FN_TYPE(NODE) \
2540 (TREE_TYPE (TYPE_FIELDS (NODE)))
2542 /* Returns `A' for a type like `int (A::*)(double)' */
2543 #define TYPE_PTRMEMFUNC_OBJECT_TYPE(NODE) \
2544 TYPE_METHOD_BASETYPE (TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
2546 /* These are use to manipulate the canonical RECORD_TYPE from the
2547 hashed POINTER_TYPE, and can only be used on the POINTER_TYPE. */
2548 #define TYPE_GET_PTRMEMFUNC_TYPE(NODE) \
2549 (TYPE_LANG_SPECIFIC (NODE) ? LANG_TYPE_PTRMEM_CHECK (NODE)->record : NULL)
2550 #define TYPE_SET_PTRMEMFUNC_TYPE(NODE, VALUE) \
2552 if (TYPE_LANG_SPECIFIC (NODE) == NULL) \
2554 TYPE_LANG_SPECIFIC (NODE) = \
2555 ggc_alloc_cleared (sizeof (struct lang_type_ptrmem)); \
2556 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.h.is_lang_type_class = 0; \
2558 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.record = (VALUE); \
2560 /* Returns the pfn field from a TYPE_PTRMEMFUNC_P. */
2561 #define PFN_FROM_PTRMEMFUNC(NODE) pfn_from_ptrmemfunc ((NODE))
2563 /* For a pointer-to-member type of the form `T X::*', this is `X'.
2564 For a type like `void (X::*)() const', this type is `X', not `const
2565 X'. To get at the `const X' you have to look at the
2566 TYPE_PTRMEM_POINTED_TO_TYPE; there, the first parameter will have
2568 #define TYPE_PTRMEM_CLASS_TYPE(NODE) \
2569 (TYPE_PTRMEM_P (NODE) \
2570 ? TYPE_OFFSET_BASETYPE (TREE_TYPE (NODE)) \
2571 : TYPE_PTRMEMFUNC_OBJECT_TYPE (NODE))
2573 /* For a pointer-to-member type of the form `T X::*', this is `T'. */
2574 #define TYPE_PTRMEM_POINTED_TO_TYPE(NODE) \
2575 (TYPE_PTRMEM_P (NODE) \
2576 ? TREE_TYPE (TREE_TYPE (NODE)) \
2577 : TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
2579 /* For a pointer-to-member constant `X::Y' this is the RECORD_TYPE for
2581 #define PTRMEM_CST_CLASS(NODE) \
2582 TYPE_PTRMEM_CLASS_TYPE (TREE_TYPE (PTRMEM_CST_CHECK (NODE)))
2584 /* For a pointer-to-member constant `X::Y' this is the _DECL for
2586 #define PTRMEM_CST_MEMBER(NODE) (((ptrmem_cst_t)PTRMEM_CST_CHECK (NODE))->member)
2588 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `extern' was
2589 specified in its declaration. This can also be set for an
2590 erroneously declared PARM_DECL. */
2591 #define DECL_THIS_EXTERN(NODE) \
2592 DECL_LANG_FLAG_2 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
2594 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `static' was
2595 specified in its declaration. This can also be set for an
2596 erroneously declared PARM_DECL. */
2597 #define DECL_THIS_STATIC(NODE) \
2598 DECL_LANG_FLAG_6 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
2600 /* Nonzero if TYPE is an anonymous union or struct type. We have to use a
2601 flag for this because "A union for which objects or pointers are
2602 declared is not an anonymous union" [class.union]. */
2603 #define ANON_AGGR_TYPE_P(NODE) \
2604 (CLASS_TYPE_P (NODE) && LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr)
2605 #define SET_ANON_AGGR_TYPE_P(NODE) \
2606 (LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr = 1)
2608 /* Nonzero if TYPE is an anonymous union type. */
2609 #define ANON_UNION_TYPE_P(NODE) \
2610 (TREE_CODE (NODE) == UNION_TYPE && ANON_AGGR_TYPE_P (NODE))
2612 #define UNKNOWN_TYPE LANG_TYPE
2614 /* Define fields and accessors for nodes representing declared names. */
2616 #define TYPE_WAS_ANONYMOUS(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->was_anonymous)
2618 /* C++: all of these are overloaded! These apply only to TYPE_DECLs. */
2620 /* The format of each node in the DECL_FRIENDLIST is as follows:
2622 The TREE_PURPOSE will be the name of a function, i.e., an
2623 IDENTIFIER_NODE. The TREE_VALUE will be itself a TREE_LIST, whose
2624 TREE_VALUEs are friends with the given name. */
2625 #define DECL_FRIENDLIST(NODE) (DECL_INITIAL (NODE))
2626 #define FRIEND_NAME(LIST) (TREE_PURPOSE (LIST))
2627 #define FRIEND_DECLS(LIST) (TREE_VALUE (LIST))
2629 /* The DECL_ACCESS, if non-NULL, is a TREE_LIST. The TREE_PURPOSE of
2630 each node is a type; the TREE_VALUE is the access granted for this
2631 DECL in that type. The DECL_ACCESS is set by access declarations.
2632 For example, if a member that would normally be public in a
2633 derived class is made protected, then the derived class and the
2634 protected_access_node will appear in the DECL_ACCESS for the node. */
2635 #define DECL_ACCESS(NODE) (LANG_DECL_U2_CHECK (NODE, 0)->access)
2637 /* Nonzero if the FUNCTION_DECL is a global constructor. */
2638 #define DECL_GLOBAL_CTOR_P(NODE) \
2639 (DECL_LANG_SPECIFIC (NODE)->decl_flags.global_ctor_p)
2641 /* Nonzero if the FUNCTION_DECL is a global destructor. */
2642 #define DECL_GLOBAL_DTOR_P(NODE) \
2643 (DECL_LANG_SPECIFIC (NODE)->decl_flags.global_dtor_p)
2645 /* Accessor macros for C++ template decl nodes. */
2647 /* The DECL_TEMPLATE_PARMS are a list. The TREE_PURPOSE of each node
2648 is a INT_CST whose TREE_INT_CST_LOW indicates the level of the
2649 template parameters, with 1 being the outermost set of template
2650 parameters. The TREE_VALUE is a vector, whose elements are the
2651 template parameters at each level. Each element in the vector is a
2652 TREE_LIST, whose TREE_VALUE is a PARM_DECL (if the parameter is a
2653 non-type parameter), or a TYPE_DECL (if the parameter is a type
2654 parameter). The TREE_PURPOSE is the default value, if any. The
2655 TEMPLATE_PARM_INDEX for the parameter is available as the
2656 DECL_INITIAL (for a PARM_DECL) or as the TREE_TYPE (for a
2658 #define DECL_TEMPLATE_PARMS(NODE) DECL_ARGUMENTS (NODE)
2659 #define DECL_INNERMOST_TEMPLATE_PARMS(NODE) \
2660 INNERMOST_TEMPLATE_PARMS (DECL_TEMPLATE_PARMS (NODE))
2661 #define DECL_NTPARMS(NODE) \
2662 TREE_VEC_LENGTH (DECL_INNERMOST_TEMPLATE_PARMS (NODE))
2663 /* For function, method, class-data templates. */
2664 #define DECL_TEMPLATE_RESULT(NODE) DECL_RESULT_FLD (NODE)
2665 /* For a static member variable template, the
2666 DECL_TEMPLATE_INSTANTIATIONS list contains the explicitly and
2667 implicitly generated instantiations of the variable. There are no
2668 partial instantiations of static member variables, so all of these
2669 will be full instantiations.
2671 For a class template the DECL_TEMPLATE_INSTANTIATIONS lists holds
2672 all instantiations and specializations of the class type, including
2673 partial instantiations and partial specializations.
2675 In both cases, the TREE_PURPOSE of each node contains the arguments
2676 used; the TREE_VALUE contains the generated variable. The template
2677 arguments are always complete. For example, given:
2679 template <class T> struct S1 {
2680 template <class U> struct S2 {};
2681 template <class U> struct S2<U*> {};
2684 the record for the partial specialization will contain, as its
2685 argument list, { {T}, {U*} }, and will be on the
2686 DECL_TEMPLATE_INSTANTIATIONS list for `template <class T> template
2687 <class U> struct S1<T>::S2'.
2689 This list is not used for function templates. */
2690 #define DECL_TEMPLATE_INSTANTIATIONS(NODE) DECL_VINDEX (NODE)
2691 /* For a function template, the DECL_TEMPLATE_SPECIALIZATIONS lists
2692 contains all instantiations and specializations of the function,
2693 including partial instantiations. For a partial instantiation
2694 which is a specialization, this list holds only full
2695 specializations of the template that are instantiations of the
2696 partial instantiation. For example, given:
2698 template <class T> struct S {
2699 template <class U> void f(U);
2700 template <> void f(T);
2703 the `S<int>::f<int>(int)' function will appear on the
2704 DECL_TEMPLATE_SPECIALIZATIONS list for both `template <class T>
2705 template <class U> void S<T>::f(U)' and `template <class T> void
2706 S<int>::f(T)'. In the latter case, however, it will have only the
2707 innermost set of arguments (T, in this case). The DECL_TI_TEMPLATE
2708 for the function declaration will point at the specialization, not
2709 the fully general template.
2711 For a class template, this list contains the partial
2712 specializations of this template. (Full specializations are not
2713 recorded on this list.) The TREE_PURPOSE holds the innermost
2714 arguments used in the partial specialization (e.g., for `template
2715 <class T> struct S<T*, int>' this will be `T*'.) The TREE_VALUE
2716 holds the innermost template parameters for the specialization
2717 (e.g., `T' in the example above.) The TREE_TYPE is the _TYPE node
2718 for the partial specialization.
2720 This list is not used for static variable templates. */
2721 #define DECL_TEMPLATE_SPECIALIZATIONS(NODE) DECL_SIZE (NODE)
2723 /* Nonzero for a DECL which is actually a template parameter. */
2724 #define DECL_TEMPLATE_PARM_P(NODE) \
2725 (DECL_LANG_FLAG_0 (NODE) \
2726 && (TREE_CODE (NODE) == CONST_DECL \
2727 || TREE_CODE (NODE) == PARM_DECL \
2728 || TREE_CODE (NODE) == TYPE_DECL \
2729 || TREE_CODE (NODE) == TEMPLATE_DECL))
2731 /* Mark NODE as a template parameter. */
2732 #define SET_DECL_TEMPLATE_PARM_P(NODE) \
2733 (DECL_LANG_FLAG_0 (NODE) = 1)
2735 /* Nonzero if NODE is a template template parameter. */
2736 #define DECL_TEMPLATE_TEMPLATE_PARM_P(NODE) \
2737 (TREE_CODE (NODE) == TEMPLATE_DECL && DECL_TEMPLATE_PARM_P (NODE))
2739 #define DECL_FUNCTION_TEMPLATE_P(NODE) \
2740 (TREE_CODE (NODE) == TEMPLATE_DECL \
2741 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == FUNCTION_DECL)
2743 /* Nonzero for a DECL that represents a template class. */
2744 #define DECL_CLASS_TEMPLATE_P(NODE) \
2745 (TREE_CODE (NODE) == TEMPLATE_DECL \
2746 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == TYPE_DECL \
2747 && !DECL_TEMPLATE_TEMPLATE_PARM_P (NODE))
2749 /* Nonzero if NODE which declares a type. */
2750 #define DECL_DECLARES_TYPE_P(NODE) \
2751 (TREE_CODE (NODE) == TYPE_DECL || DECL_CLASS_TEMPLATE_P (NODE))
2753 /* Nonzero if NODE is the typedef implicitly generated for a type when
2754 the type is declared. (In C++, `struct S {};' is roughly equivalent
2755 to `struct S {}; typedef struct S S;' in C. This macro will hold
2756 for the typedef indicated in this example. Note that in C++, there
2757 is a second implicit typedef for each class, in the scope of `S'
2758 itself, so that you can say `S::S'. This macro does *not* hold for
2760 #define DECL_IMPLICIT_TYPEDEF_P(NODE) \
2761 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_2 (NODE))
2762 #define SET_DECL_IMPLICIT_TYPEDEF_P(NODE) \
2763 (DECL_LANG_FLAG_2 (NODE) = 1)
2765 /* A `primary' template is one that has its own template header. A
2766 member function of a class template is a template, but not primary.
2767 A member template is primary. Friend templates are primary, too. */
2769 /* Returns the primary template corresponding to these parameters. */
2770 #define DECL_PRIMARY_TEMPLATE(NODE) \
2771 (TREE_TYPE (DECL_INNERMOST_TEMPLATE_PARMS (NODE)))
2773 /* Returns nonzero if NODE is a primary template. */
2774 #define PRIMARY_TEMPLATE_P(NODE) (DECL_PRIMARY_TEMPLATE (NODE) == (NODE))
2776 #define CLASSTYPE_TEMPLATE_LEVEL(NODE) \
2777 (TREE_INT_CST_LOW (TREE_PURPOSE (CLASSTYPE_TI_TEMPLATE (NODE))))
2779 /* Indicates whether or not (and how) a template was expanded for this
2780 FUNCTION_DECL or VAR_DECL.
2781 0=normal declaration, e.g. int min (int, int);
2782 1=implicit template instantiation
2783 2=explicit template specialization, e.g. int min<int> (int, int);
2784 3=explicit template instantiation, e.g. template int min<int> (int, int); */
2785 #define DECL_USE_TEMPLATE(NODE) (DECL_LANG_SPECIFIC (NODE)->decl_flags.use_template)
2787 #define DECL_TEMPLATE_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) & 1)
2788 #define CLASSTYPE_TEMPLATE_INSTANTIATION(NODE) \
2789 (CLASSTYPE_USE_TEMPLATE (NODE) & 1)
2791 #define DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) == 2)
2792 #define SET_DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) = 2)
2793 #define CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
2794 (CLASSTYPE_USE_TEMPLATE (NODE) == 2)
2795 #define SET_CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
2796 (CLASSTYPE_USE_TEMPLATE (NODE) = 2)
2798 #define DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 1)
2799 #define SET_DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 1)
2800 #define CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
2801 (CLASSTYPE_USE_TEMPLATE (NODE) == 1)
2802 #define SET_CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
2803 (CLASSTYPE_USE_TEMPLATE (NODE) = 1)
2805 #define DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 3)
2806 #define SET_DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 3)
2807 #define CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
2808 (CLASSTYPE_USE_TEMPLATE (NODE) == 3)
2809 #define SET_CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
2810 (CLASSTYPE_USE_TEMPLATE (NODE) = 3)
2812 /* Nonzero if DECL is a friend function which is an instantiation
2813 from the point of view of the compiler, but not from the point of
2814 view of the language. For example given:
2815 template <class T> struct S { friend void f(T) {}; };
2816 the declaration of `void f(int)' generated when S<int> is
2817 instantiated will not be a DECL_TEMPLATE_INSTANTIATION, but will be
2818 a DECL_FRIEND_PSUEDO_TEMPLATE_INSTANTIATION. */
2819 #define DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION(DECL) \
2820 (DECL_TEMPLATE_INFO (DECL) && !DECL_USE_TEMPLATE (DECL))
2822 /* Nonzero iff we are currently processing a declaration for an
2823 entity with its own template parameter list, and which is not a
2824 full specialization. */
2825 #define PROCESSING_REAL_TEMPLATE_DECL_P() \
2826 (processing_template_decl > template_class_depth (current_class_type))
2828 /* Nonzero if this VAR_DECL or FUNCTION_DECL has already been
2829 instantiated, i.e. its definition has been generated from the
2830 pattern given in the the template. */
2831 #define DECL_TEMPLATE_INSTANTIATED(NODE) \
2832 DECL_LANG_FLAG_1 (VAR_OR_FUNCTION_DECL_CHECK (NODE))
2834 /* We know what we're doing with this decl now. */
2835 #define DECL_INTERFACE_KNOWN(NODE) DECL_LANG_FLAG_5 (NODE)
2837 /* This function was declared inline. This flag controls the linkage
2838 semantics of 'inline'; whether or not the function is inlined is
2839 controlled by DECL_INLINE. */
2840 #define DECL_DECLARED_INLINE_P(NODE) \
2841 (DECL_LANG_SPECIFIC (NODE)->decl_flags.base.declared_inline)
2843 /* DECL_EXTERNAL must be set on a decl until the decl is actually emitted,
2844 so that assemble_external will work properly. So we have this flag to
2845 tell us whether the decl is really not external. */
2846 #define DECL_NOT_REALLY_EXTERN(NODE) \
2847 (DECL_LANG_SPECIFIC (NODE)->decl_flags.not_really_extern)
2849 #define DECL_REALLY_EXTERN(NODE) \
2850 (DECL_EXTERNAL (NODE) && ! DECL_NOT_REALLY_EXTERN (NODE))
2852 /* A thunk is a stub function.
2854 A thunk is an alternate entry point for an ordinary FUNCTION_DECL.
2855 The address of the ordinary FUNCTION_DECL is given by the
2856 DECL_INITIAL, which is always an ADDR_EXPR whose operand is a
2857 FUNCTION_DECL. The job of the thunk is to either adjust the this
2858 pointer before transferring control to the FUNCTION_DECL, or call
2859 FUNCTION_DECL and then adjust the result value. Note, the result
2860 pointer adjusting thunk must perform a call to the thunked
2861 function, (or be implemented via passing some invisible parameter
2862 to the thunked function, which is modified to perform the
2863 adjustment just before returning).
2865 A thunk may perform either, or both, of the following operations:
2867 o Adjust the this or result pointer by a constant offset.
2868 o Adjust the this or result pointer by looking up a vcall or vbase offset
2871 A this pointer adjusting thunk converts from a base to a derived
2872 class, and hence adds the offsets. A result pointer adjusting thunk
2873 converts from a derived class to a base, and hence subtracts the
2874 offsets. If both operations are performed, then the constant
2875 adjustment is performed first for this pointer adjustment and last
2876 for the result pointer adjustment.
2878 The constant adjustment is given by THUNK_FIXED_OFFSET. If the
2879 vcall or vbase offset is required, the index into the vtable is given by
2880 THUNK_VIRTUAL_OFFSET. */
2882 /* An integer indicating how many bytes should be subtracted from the
2883 this or result pointer when this function is called. */
2884 #define THUNK_FIXED_OFFSET(DECL) \
2885 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL))->u.f.fixed_offset)
2887 /* A tree indicating how to perform the virtual adjustment. For a this
2888 adjusting thunk it is the number of bytes to be added to the vtable
2889 to find the vcall offset. For a result adjusting thunk, it is the
2890 binfo of the relevant virtual base. If NULL, then there is no
2891 virtual adjust. (The vptr is always located at offset zero from
2892 the this or result pointer.) (If the covariant type is within the
2893 class hierarchy being layed out, the vbase index is not yet known
2894 at the point we need to create the thunks, hence the need to use
2897 #define THUNK_VIRTUAL_OFFSET(DECL) \
2898 (LANG_DECL_U2_CHECK (VAR_OR_FUNCTION_DECL_CHECK (DECL), 0)->virtual_offset)
2900 /* For thunk NODE, this is the FUNCTION_DECL thunked to. */
2901 #define THUNK_TARGET(NODE) \
2902 (DECL_LANG_SPECIFIC (NODE)->u.f.befriending_classes)
2904 /* These macros provide convenient access to the various _STMT nodes
2905 created when parsing template declarations. */
2906 #define TRY_STMTS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 0)
2907 #define TRY_HANDLERS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 1)
2909 #define EH_SPEC_STMTS(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 0)
2910 #define EH_SPEC_RAISES(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 1)
2912 #define USING_STMT_NAMESPACE(NODE) TREE_OPERAND (USING_STMT_CHECK (NODE), 0)
2914 /* Nonzero if this try block is a function try block. */
2915 #define FN_TRY_BLOCK_P(NODE) TREE_LANG_FLAG_3 (TRY_BLOCK_CHECK (NODE))
2916 #define HANDLER_PARMS(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 0)
2917 #define HANDLER_BODY(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 1)
2918 #define HANDLER_TYPE(NODE) TREE_TYPE (HANDLER_CHECK (NODE))
2920 /* The parameters for a call-declarator. */
2921 #define CALL_DECLARATOR_PARMS(NODE) \
2922 (TREE_PURPOSE (TREE_OPERAND (NODE, 1)))
2924 /* The cv-qualifiers for a call-declarator. */
2925 #define CALL_DECLARATOR_QUALS(NODE) \
2926 (TREE_VALUE (TREE_OPERAND (NODE, 1)))
2928 /* The exception-specification for a call-declarator. */
2929 #define CALL_DECLARATOR_EXCEPTION_SPEC(NODE) \
2932 /* An enumeration of the kind of tags that C++ accepts. */
2934 none_type = 0, /* Not a tag type. */
2935 record_type, /* "struct" types. */
2936 class_type, /* "class" types. */
2937 union_type, /* "union" types. */
2938 enum_type, /* "enum" types. */
2939 typename_type /* "typename" types. */
2942 /* The various kinds of lvalues we distinguish. */
2943 typedef enum cp_lvalue_kind {
2944 clk_none = 0, /* Things that are not an lvalue. */
2945 clk_ordinary = 1, /* An ordinary lvalue. */
2946 clk_class = 2, /* An rvalue of class-type. */
2947 clk_bitfield = 4 /* An lvalue for a bit-field. */
2950 /* The kinds of scopes we recognize. */
2951 typedef enum scope_kind {
2952 sk_block, /* An ordinary block scope. */
2953 sk_try, /* A try-block. */
2954 sk_catch, /* A catch-block. */
2955 sk_for, /* The scope of the variable declared in a
2956 for-init-statement. */
2957 sk_template_parms, /* A scope for template parameters. */
2958 sk_template_spec /* A scope corresponding to a template
2959 specialization. There is never anything in
2963 /* Various kinds of template specialization, instantiation, etc. */
2964 typedef enum tmpl_spec_kind {
2965 tsk_none, /* Not a template at all. */
2966 tsk_invalid_member_spec, /* An explicit member template
2967 specialization, but the enclosing
2968 classes have not all been explicitly
2970 tsk_invalid_expl_inst, /* An explicit instantiation containing
2971 template parameter lists. */
2972 tsk_excessive_parms, /* A template declaration with too many
2973 template parameter lists. */
2974 tsk_insufficient_parms, /* A template declaration with too few
2976 tsk_template, /* A template declaration. */
2977 tsk_expl_spec, /* An explicit specialization. */
2978 tsk_expl_inst /* An explicit instantiation. */
2981 /* The various kinds of access. BINFO_ACCESS depends on these being
2982 two bit quantities. The numerical values are important; they are
2983 used to initialize RTTI data structures, so changing them changes
2985 typedef enum access_kind {
2986 ak_none = 0, /* Inaccessible. */
2987 ak_public = 1, /* Accessible, as a `public' thing. */
2988 ak_protected = 2, /* Accessible, as a `protected' thing. */
2989 ak_private = 3 /* Accessible, as a `private' thing. */
2992 /* The various kinds of special functions. If you add to this list,
2993 you should update special_function_p as well. */
2994 typedef enum special_function_kind {
2995 sfk_none = 0, /* Not a special function. This enumeral
2996 must have value zero; see
2997 special_function_p. */
2998 sfk_constructor, /* A constructor. */
2999 sfk_copy_constructor, /* A copy constructor. */
3000 sfk_assignment_operator, /* An assignment operator. */
3001 sfk_destructor, /* A destructor. */
3002 sfk_complete_destructor, /* A destructor for complete objects. */
3003 sfk_base_destructor, /* A destructor for base subobjects. */
3004 sfk_deleting_destructor, /* A destructor for complete objects that
3005 deletes the object after it has been
3007 sfk_conversion /* A conversion operator. */
3008 } special_function_kind;
3010 /* The various kinds of linkage. From [basic.link],
3012 A name is said to have linkage when it might denote the same
3013 object, reference, function, type, template, namespace or value
3014 as a name introduced in another scope:
3016 -- When a name has external linkage, the entity it denotes can
3017 be referred to from scopes of other translation units or from
3018 other scopes of the same translation unit.
3020 -- When a name has internal linkage, the entity it denotes can
3021 be referred to by names from other scopes in the same
3024 -- When a name has no linkage, the entity it denotes cannot be
3025 referred to by names from other scopes. */
3027 typedef enum linkage_kind {
3028 lk_none, /* No linkage. */
3029 lk_internal, /* Internal linkage. */
3030 lk_external /* External linkage. */
3033 /* Bitmask flags to control type substitution. */
3034 typedef enum tsubst_flags_t {
3035 tf_none = 0, /* nothing special */
3036 tf_error = 1 << 0, /* give error messages */
3037 tf_warning = 1 << 1, /* give warnings too */
3038 tf_ignore_bad_quals = 1 << 2, /* ignore bad cvr qualifiers */
3039 tf_keep_type_decl = 1 << 3, /* retain typedef type decls
3040 (make_typename_type use) */
3041 tf_ptrmem_ok = 1 << 4 /* pointers to member ok (internal
3042 instantiate_type use) */
3045 /* The kind of checking we can do looking in a class hierarchy. */
3046 typedef enum base_access {
3047 ba_any = 0, /* Do not check access, allow an ambiguous base,
3048 prefer a non-virtual base */
3049 ba_ignore = 1, /* Do not check access */
3050 ba_check = 2, /* Check access */
3051 ba_not_special = 3, /* Do not consider special privilege
3052 current_class_type might give. */
3053 ba_quiet = 4 /* Do not issue error messages (bit mask). */
3056 /* The various kinds of access check during parsing. */
3057 typedef enum deferring_kind {
3058 dk_no_deferred = 0, /* Check access immediately */
3059 dk_deferred = 1, /* Deferred check */
3060 dk_no_check = 2 /* No access check */
3063 /* The kind of base we can find, looking in a class hierarchy.
3064 Values <0 indicate we failed. */
3065 typedef enum base_kind {
3066 bk_inaccessible = -3, /* The base is inaccessible */
3067 bk_ambig = -2, /* The base is ambiguous */
3068 bk_not_base = -1, /* It is not a base */
3069 bk_same_type = 0, /* It is the same type */
3070 bk_proper_base = 1, /* It is a proper base */
3071 bk_via_virtual = 2 /* It is a proper base, but via a virtual
3072 path. This might not be the canonical
3076 /* Set by add_implicitly_declared_members() to keep those members from
3077 being flagged as deprecated or reported as using deprecated
3079 extern int adding_implicit_members;
3082 /* A node that is a list (length 1) of error_mark_nodes. */
3083 extern GTY(()) tree error_mark_list;
3085 /* Node for "pointer to (virtual) function".
3086 This may be distinct from ptr_type_node so gdb can distinguish them. */
3087 #define vfunc_ptr_type_node vtable_entry_type
3090 /* For building calls to `delete'. */
3091 extern GTY(()) tree integer_two_node;
3092 extern GTY(()) tree integer_three_node;
3094 extern GTY(()) tree anonymous_namespace_name;
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_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_SPECULATIVELY means return NULL_TREE if we cannot find what we are
3321 after. Note, LOOKUP_COMPLAIN is checked and error messages printed
3322 before LOOKUP_SPECULATIVELY is checked.
3323 LOOKUP_NO_CONVERSION means that user-defined conversions are not
3324 permitted. Built-in conversions are permitted.
3325 LOOKUP_DESTRUCTOR means explicit call to destructor.
3326 LOOKUP_NO_TEMP_BIND means temporaries will not be bound to references.
3328 These are used in global lookup to support elaborated types and
3331 LOOKUP_PREFER_TYPES means not to accept objects, and possibly namespaces.
3332 LOOKUP_PREFER_NAMESPACES means not to accept objects, and possibly types.
3333 LOOKUP_PREFER_BOTH means class-or-namespace-name. */
3335 #define LOOKUP_PROTECT (1)
3336 #define LOOKUP_COMPLAIN (2)
3337 #define LOOKUP_NORMAL (3)
3338 #define LOOKUP_NONVIRTUAL (8)
3339 #define LOOKUP_GLOBAL (16)
3340 #define LOOKUP_SPECULATIVELY (64)
3341 #define LOOKUP_ONLYCONVERTING (128)
3342 #define DIRECT_BIND (256)
3343 #define LOOKUP_NO_CONVERSION (512)
3344 #define LOOKUP_DESTRUCTOR (512)
3345 #define LOOKUP_NO_TEMP_BIND (1024)
3346 #define LOOKUP_PREFER_TYPES (2048)
3347 #define LOOKUP_PREFER_NAMESPACES (4096)
3348 #define LOOKUP_PREFER_BOTH (6144)
3350 #define LOOKUP_NAMESPACES_ONLY(F) \
3351 (((F) & LOOKUP_PREFER_NAMESPACES) && !((F) & LOOKUP_PREFER_TYPES))
3352 #define LOOKUP_TYPES_ONLY(F) \
3353 (!((F) & LOOKUP_PREFER_NAMESPACES) && ((F) & LOOKUP_PREFER_TYPES))
3354 #define LOOKUP_QUALIFIERS_ONLY(F) ((F) & LOOKUP_PREFER_BOTH)
3357 /* These flags are used by the conversion code.
3358 CONV_IMPLICIT : Perform implicit conversions (standard and user-defined).
3359 CONV_STATIC : Perform the explicit conversions for static_cast.
3360 CONV_CONST : Perform the explicit conversions for const_cast.
3361 CONV_REINTERPRET: Perform the explicit conversions for reinterpret_cast.
3362 CONV_PRIVATE : Perform upcasts to private bases.
3363 CONV_FORCE_TEMP : Require a new temporary when converting to the same
3366 #define CONV_IMPLICIT 1
3367 #define CONV_STATIC 2
3368 #define CONV_CONST 4
3369 #define CONV_REINTERPRET 8
3370 #define CONV_PRIVATE 16
3371 /* #define CONV_NONCONVERTING 32 */
3372 #define CONV_FORCE_TEMP 64
3373 #define CONV_STATIC_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_FORCE_TEMP)
3374 #define CONV_OLD_CONVERT (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
3376 #define CONV_C_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
3377 | CONV_REINTERPRET | CONV_PRIVATE | CONV_FORCE_TEMP)
3379 /* Used by build_expr_type_conversion to indicate which types are
3380 acceptable as arguments to the expression under consideration. */
3382 #define WANT_INT 1 /* integer types, including bool */
3383 #define WANT_FLOAT 2 /* floating point types */
3384 #define WANT_ENUM 4 /* enumerated types */
3385 #define WANT_POINTER 8 /* pointer types */
3386 #define WANT_NULL 16 /* null pointer constant */
3387 #define WANT_ARITH (WANT_INT | WANT_FLOAT)
3389 /* Used with comptypes, and related functions, to guide type
3392 #define COMPARE_STRICT 0 /* Just check if the types are the
3394 #define COMPARE_BASE 1 /* Check to see if the second type is
3395 derived from the first. */
3396 #define COMPARE_DERIVED 2 /* Like COMPARE_BASE, but in
3398 #define COMPARE_REDECLARATION 4 /* The comparison is being done when
3399 another declaration of an existing
3402 /* Used with push_overloaded_decl. */
3403 #define PUSH_GLOBAL 0 /* Push the DECL into namespace scope,
3404 regardless of the current scope. */
3405 #define PUSH_LOCAL 1 /* Push the DECL into the current
3407 #define PUSH_USING 2 /* We are pushing this DECL as the
3408 result of a using declaration. */
3410 /* Used with start function. */
3411 #define SF_DEFAULT 0 /* No flags. */
3412 #define SF_PRE_PARSED 1 /* The function declaration has
3413 already been parsed. */
3414 #define SF_INCLASS_INLINE 2 /* The function is an inline, defined
3415 in the class body. */
3417 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, or if TYPE2
3418 is derived from TYPE1, or if TYPE2 is a pointer (reference) to a
3419 class derived from the type pointed to (referred to) by TYPE1. */
3420 #define same_or_base_type_p(TYPE1, TYPE2) \
3421 comptypes ((TYPE1), (TYPE2), COMPARE_BASE)
3423 /* These macros are used to access a TEMPLATE_PARM_INDEX. */
3424 #define TEMPLATE_PARM_INDEX_CAST(NODE) \
3425 ((template_parm_index*)TEMPLATE_PARM_INDEX_CHECK (NODE))
3426 #define TEMPLATE_PARM_IDX(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->index)
3427 #define TEMPLATE_PARM_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->level)
3428 #define TEMPLATE_PARM_DESCENDANTS(NODE) (TREE_CHAIN (NODE))
3429 #define TEMPLATE_PARM_ORIG_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->orig_level)
3430 #define TEMPLATE_PARM_DECL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->decl)
3432 /* These macros are for accessing the fields of TEMPLATE_TYPE_PARM,
3433 TEMPLATE_TEMPLATE_PARM and BOUND_TEMPLATE_TEMPLATE_PARM nodes. */
3434 #define TEMPLATE_TYPE_PARM_INDEX(NODE) (TYPE_FIELDS (NODE))
3435 #define TEMPLATE_TYPE_IDX(NODE) \
3436 (TEMPLATE_PARM_IDX (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3437 #define TEMPLATE_TYPE_LEVEL(NODE) \
3438 (TEMPLATE_PARM_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3439 #define TEMPLATE_TYPE_ORIG_LEVEL(NODE) \
3440 (TEMPLATE_PARM_ORIG_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3441 #define TEMPLATE_TYPE_DECL(NODE) \
3442 (TEMPLATE_PARM_DECL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3444 /* These constants can used as bit flags in the process of tree formatting.
3446 TFF_PLAIN_IDENTIFIER: unqualified part of a name.
3447 TFF_SCOPE: include the class and namespace scope of the name.
3448 TFF_CHASE_TYPEDEF: print the original type-id instead of the typedef-name.
3449 TFF_DECL_SPECIFIERS: print decl-specifiers.
3450 TFF_CLASS_KEY_OR_ENUM: precede a class-type name (resp. enum name) with
3451 a class-key (resp. `enum').
3452 TFF_RETURN_TYPE: include function return type.
3453 TFF_FUNCTION_DEFAULT_ARGUMENTS: include function default parameter values.
3454 TFF_EXCEPTION_SPECIFICATION: show function exception specification.
3455 TFF_TEMPLATE_HEADER: show the template<...> header in a
3456 template-declaration.
3457 TFF_TEMPLATE_NAME: show only template-name.
3458 TFF_EXPR_IN_PARENS: Parenthesize expressions. */
3460 #define TFF_PLAIN_IDENTIFIER (0)
3461 #define TFF_SCOPE (1)
3462 #define TFF_CHASE_TYPEDEF (1 << 1)
3463 #define TFF_DECL_SPECIFIERS (1 << 2)
3464 #define TFF_CLASS_KEY_OR_ENUM (1 << 3)
3465 #define TFF_RETURN_TYPE (1 << 4)
3466 #define TFF_FUNCTION_DEFAULT_ARGUMENTS (1 << 5)
3467 #define TFF_EXCEPTION_SPECIFICATION (1 << 6)
3468 #define TFF_TEMPLATE_HEADER (1 << 7)
3469 #define TFF_TEMPLATE_NAME (1 << 8)
3470 #define TFF_EXPR_IN_PARENS (1 << 9)
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 tree build_method_call (tree, tree, tree, tree, int);
3515 extern bool null_ptr_cst_p (tree);
3516 extern bool sufficient_parms_p (tree);
3517 extern tree type_decays_to (tree);
3518 extern tree resolve_scoped_fn_name (tree, tree);
3519 extern tree build_user_type_conversion (tree, tree, int);
3520 extern tree build_new_function_call (tree, tree);
3521 extern tree build_operator_new_call (tree, tree, tree *, tree *);
3522 extern tree build_new_method_call (tree, tree, tree, tree, int);
3523 extern tree build_special_member_call (tree, tree, tree, tree, int);
3524 extern tree build_new_op (enum tree_code, int, tree, tree, tree);
3525 extern tree build_op_delete_call (enum tree_code, tree, tree, int, tree);
3526 extern bool can_convert (tree, tree);
3527 extern bool can_convert_arg (tree, tree, tree);
3528 extern bool can_convert_arg_bad (tree, tree, tree);
3529 extern bool enforce_access (tree, tree);
3530 extern tree convert_default_arg (tree, tree, tree, int);
3531 extern tree convert_arg_to_ellipsis (tree);
3532 extern tree build_x_va_arg (tree, tree);
3533 extern tree cxx_type_promotes_to (tree);
3534 extern tree type_passed_as (tree);
3535 extern tree convert_for_arg_passing (tree, tree);
3536 extern tree cp_convert_parm_for_inlining (tree, tree, tree);
3537 extern bool is_properly_derived_from (tree, tree);
3538 extern tree initialize_reference (tree, tree, tree);
3539 extern tree make_temporary_var_for_ref_to_temp (tree, tree);
3540 extern tree strip_top_quals (tree);
3541 extern tree perform_implicit_conversion (tree, tree);
3542 extern tree perform_direct_initialization_if_possible (tree, tree);
3543 extern tree in_charge_arg_for_name (tree);
3544 extern tree build_cxx_call (tree, tree, tree);
3547 extern tree build_base_path (enum tree_code, tree, tree, int);
3548 extern tree convert_to_base (tree, tree, bool);
3549 extern tree build_vtbl_ref (tree, tree);
3550 extern tree build_vfn_ref (tree, tree);
3551 extern tree get_vtable_decl (tree, int);
3552 extern void resort_sorted_fields
3553 (void *, void *, gt_pointer_operator, void *);
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, bool);
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 int is_base_of_enclosing_class (tree, tree);
3586 extern void unreverse_member_declarations (tree);
3587 extern void invalidate_class_lookup_cache (void);
3588 extern void maybe_note_name_used_in_class (tree, tree);
3589 extern void note_name_declared_in_class (tree, tree);
3590 extern tree get_vtbl_decl_for_binfo (tree);
3591 extern tree get_vtt_name (tree);
3592 extern tree get_primary_binfo (tree);
3595 extern tree convert_to_reference (tree, tree, int, int, tree);
3596 extern tree convert_from_reference (tree);
3597 extern tree convert_lvalue (tree, tree);
3598 extern tree force_rvalue (tree);
3599 extern tree ocp_convert (tree, tree, int, int);
3600 extern tree cp_convert (tree, tree);
3601 extern tree convert_to_void (tree, const char */*implicit context*/);
3602 extern tree convert_force (tree, tree, int);
3603 extern tree build_type_conversion (tree, tree);
3604 extern tree build_expr_type_conversion (int, tree, bool);
3605 extern tree type_promotes_to (tree);
3606 extern tree perform_qualification_conversions (tree, tree);
3607 extern void clone_function_decl (tree, int);
3608 extern void adjust_clone_args (tree);
3611 extern int global_bindings_p (void);
3612 extern int kept_level_p (void);
3613 extern tree getdecls (void);
3614 extern void pushlevel (int);
3615 extern void insert_block (tree);
3616 extern void set_block (tree);
3617 extern tree pushdecl (tree);
3618 extern void cxx_init_decl_processing (void);
3619 enum cp_tree_node_structure_enum cp_tree_node_structure
3620 (union lang_tree_node *);
3621 extern void cxx_insert_default_attributes (tree);
3622 extern bool cxx_mark_addressable (tree);
3623 extern void cxx_push_function_context (struct function *);
3624 extern void cxx_pop_function_context (struct function *);
3625 extern void cxx_mark_function_context (struct function *);
3626 extern int toplevel_bindings_p (void);
3627 extern int namespace_bindings_p (void);
3628 extern void keep_next_level (int);
3629 extern int template_parm_scope_p (void);
3630 extern void set_class_shadows (tree);
3631 extern void maybe_push_cleanup_level (tree);
3632 extern void begin_scope (scope_kind);
3633 extern void finish_scope (void);
3634 extern void resume_level (struct cp_binding_level *);
3635 extern void delete_block (tree);
3636 extern void add_block_current_level (tree);
3637 extern void pushlevel_class (void);
3638 extern void poplevel_class (void);
3639 extern void print_binding_stack (void);
3640 extern void print_binding_level (struct cp_binding_level *);
3641 extern void push_namespace (tree);
3642 extern void pop_namespace (void);
3643 extern void push_nested_namespace (tree);
3644 extern void pop_nested_namespace (tree);
3645 extern void maybe_push_to_top_level (int);
3646 extern void push_to_top_level (void);
3647 extern void pop_from_top_level (void);
3648 extern void push_switch (tree);
3649 extern void pop_switch (void);
3650 extern tree identifier_type_value (tree);
3651 extern void set_identifier_type_value (tree, tree);
3652 extern void pop_everything (void);
3653 extern void pushtag (tree, tree, int);
3654 extern tree make_anon_name (void);
3655 extern void clear_anon_tags (void);
3656 extern int decls_match (tree, tree);
3657 extern int duplicate_decls (tree, tree);
3658 extern tree pushdecl_top_level (tree);
3659 extern tree pushdecl_top_level_and_finish (tree, tree);
3660 extern bool pushdecl_class_level (tree);
3661 extern tree pushdecl_namespace_level (tree);
3662 extern tree push_using_decl (tree, tree);
3663 extern tree push_using_directive (tree);
3664 extern bool push_class_level_binding (tree, tree);
3665 extern tree implicitly_declare (tree);
3666 extern tree declare_local_label (tree);
3667 extern tree define_label (location_t, tree);
3668 extern void check_goto (tree);
3669 extern void define_case_label (void);
3670 extern tree namespace_binding (tree, tree);
3671 extern void set_namespace_binding (tree, tree, tree);
3672 extern tree lookup_namespace_name (tree, tree);
3673 extern tree make_typename_type (tree, tree, tsubst_flags_t);
3674 extern tree make_unbound_class_template (tree, tree, tsubst_flags_t);
3675 extern tree lookup_name_nonclass (tree);
3676 extern tree lookup_function_nonclass (tree, tree);
3677 extern tree lookup_qualified_name (tree, tree, bool);
3678 extern tree lookup_name (tree, int);
3679 extern tree lookup_name_current_level (tree);
3680 extern tree lookup_type_current_level (tree);
3681 extern tree lookup_name_real (tree, int, int, int, int);
3682 extern tree namespace_ancestor (tree, tree);
3683 extern bool is_ancestor (tree, tree);
3684 extern tree unqualified_namespace_lookup (tree, int, tree *);
3685 extern tree check_for_out_of_scope_variable (tree);
3686 extern bool lookup_using_namespace (tree, cxx_binding *, tree, tree, int, tree *);
3687 extern bool qualified_lookup_using_namespace (tree, tree, cxx_binding *, int);
3688 extern tree build_library_fn (tree, tree);
3689 extern tree build_library_fn_ptr (const char *, tree);
3690 extern tree build_cp_library_fn_ptr (const char *, tree);
3691 extern tree push_library_fn (tree, tree);
3692 extern tree push_void_library_fn (tree, tree);
3693 extern tree push_throw_library_fn (tree, tree);
3694 extern int init_type_desc (void);
3695 extern tree check_tag_decl (tree);
3696 extern tree shadow_tag (tree);
3697 extern tree groktypename (tree);
3698 extern tree start_decl (tree, tree, int, tree, tree);
3699 extern void start_decl_1 (tree);
3700 extern void cp_finish_decl (tree, tree, tree, int);
3701 extern void finish_decl (tree, tree, tree);
3702 extern void maybe_inject_for_scope_var (tree);
3703 extern tree start_handler_parms (tree, tree);
3704 extern int complete_array_type (tree, tree, int);
3705 extern tree build_ptrmemfunc_type (tree);
3706 extern tree build_ptrmem_type (tree, tree);
3707 /* the grokdeclarator prototype is in decl.h */
3708 extern int copy_fn_p (tree);
3709 extern tree get_scope_of_declarator (tree);
3710 extern void grok_special_member_properties (tree);
3711 extern int grok_ctor_properties (tree, tree);
3712 extern void grok_op_properties (tree, int);
3713 extern tree xref_tag (enum tag_types, tree, tree, bool);
3714 extern tree xref_tag_from_type (tree, tree, int);
3715 extern void xref_basetypes (tree, tree);
3716 extern tree start_enum (tree);
3717 extern void finish_enum (tree);
3718 extern void build_enumerator (tree, tree, tree);
3719 extern int start_function (tree, tree, tree, int);
3720 extern tree begin_function_body (void);
3721 extern void finish_function_body (tree);
3722 extern tree finish_function (int);
3723 extern tree start_method (tree, tree, tree);
3724 extern tree finish_method (tree);
3725 extern void maybe_register_incomplete_var (tree);
3726 extern void complete_vars (tree);
3727 extern void finish_stmt (void);
3728 extern void print_other_binding_stack (struct cp_binding_level *);
3729 extern void revert_static_member_fn (tree);
3730 extern void fixup_anonymous_aggr (tree);
3731 extern int check_static_variable_definition (tree, tree);
3732 extern tree compute_array_index_type (tree, tree);
3733 extern void push_local_binding (tree, tree, int);
3734 extern int push_class_binding (tree, tree);
3735 extern tree check_default_argument (tree, tree);
3736 extern tree push_overloaded_decl (tree, int);
3737 extern void clear_identifier_class_values (void);
3738 extern void storetags (tree);
3739 extern int vtable_decl_p (tree, void *);
3740 extern int vtype_decl_p (tree, void *);
3741 extern int sigtable_decl_p (tree, void *);
3742 typedef bool (*walk_globals_pred) (tree, void *);
3743 typedef bool (*walk_globals_fn) (tree *, void *);
3744 extern bool walk_globals (walk_globals_pred, walk_globals_fn, void *);
3745 extern bool walk_vtables (walk_globals_pred, walk_globals_fn, void *);
3746 typedef int (*walk_namespaces_fn) (tree, void *);
3747 extern int walk_namespaces (walk_namespaces_fn,
3749 extern int wrapup_globals_for_namespace (tree, void *);
3750 extern tree cp_namespace_decls (tree);
3751 extern tree create_implicit_typedef (tree, tree);
3752 extern tree maybe_push_decl (tree);
3753 extern tree build_target_expr_with_type (tree, tree);
3754 extern int local_variable_p (tree);
3755 extern int nonstatic_local_decl_p (tree);
3756 extern tree declare_global_var (tree, tree);
3757 extern void register_dtor_fn (tree);
3758 extern tmpl_spec_kind current_tmpl_spec_kind (int);
3759 extern tree cp_fname_init (const char *);
3760 extern bool have_extern_spec;
3763 extern bool check_java_method (tree);
3764 extern int grok_method_quals (tree, tree, tree);
3765 extern void warn_if_unknown_interface (tree);
3766 extern void grok_x_components (tree);
3767 extern void maybe_retrofit_in_chrg (tree);
3768 extern void maybe_make_one_only (tree);
3769 extern void grokclassfn (tree, tree, enum overload_flags, tree);
3770 extern tree grok_array_decl (tree, tree);
3771 extern tree delete_sanity (tree, tree, int, int);
3772 extern tree check_classfn (tree, tree);
3773 extern void check_member_template (tree);
3774 extern tree grokfield (tree, tree, tree, tree, tree);
3775 extern tree grokbitfield (tree, tree, tree);
3776 extern tree groktypefield (tree, tree);
3777 extern void cplus_decl_attributes (tree *, tree, int);
3778 extern tree constructor_name_full (tree);
3779 extern tree constructor_name (tree);
3780 extern bool constructor_name_p (tree, tree);
3781 extern void defer_fn (tree);
3782 extern void finish_anon_union (tree);
3783 extern tree finish_table (tree, tree, tree, int);
3784 extern tree coerce_new_type (tree);
3785 extern tree coerce_delete_type (tree);
3786 extern void comdat_linkage (tree);
3787 extern void import_export_vtable (tree, tree, int);
3788 extern void import_export_decl (tree);
3789 extern void import_export_tinfo (tree, tree, bool);
3790 extern tree build_cleanup (tree);
3791 extern tree build_offset_ref_call_from_tree (tree, tree);
3792 extern void set_decl_namespace (tree, tree, bool);
3793 extern tree current_decl_namespace (void);
3794 extern void push_decl_namespace (tree);
3795 extern void pop_decl_namespace (void);
3796 extern void push_scope (tree);
3797 extern void pop_scope (tree);
3798 extern void do_namespace_alias (tree, tree);
3799 extern void do_toplevel_using_decl (tree);
3800 extern void do_local_using_decl (tree);
3801 extern tree do_class_using_decl (tree);
3802 extern void do_using_directive (tree);
3803 extern void check_default_args (tree);
3804 extern void mark_used (tree);
3805 extern tree handle_class_head (enum tag_types, tree, tree, tree);
3806 extern tree lookup_arg_dependent (tree, tree, tree);
3807 extern void finish_static_data_member_decl (tree, tree, tree, int);
3808 extern tree cp_build_parm_decl (tree, tree);
3809 extern tree build_artificial_parm (tree, tree);
3810 extern tree get_guard (tree);
3811 extern tree get_guard_cond (tree);
3812 extern tree set_guard (tree);
3813 extern void prepare_assemble_variable (tree);
3814 extern void lower_function (tree);
3816 /* XXX Not i18n clean. */
3817 #define cp_deprecated(STR) \
3819 if (warn_deprecated) \
3820 warning ("%s is deprecated, please see the documentation for details", \
3825 extern void init_error (void);
3826 extern const char *type_as_string (tree, int);
3827 extern const char *decl_as_string (tree, int);
3828 extern const char *expr_as_string (tree, int);
3829 extern const char *context_as_string (tree, int);
3830 extern const char *lang_decl_name (tree, int);
3831 extern const char *language_to_string (enum languages);
3832 extern void print_instantiation_context (void);
3835 extern void init_exception_processing (void);
3836 extern tree expand_start_catch_block (tree);
3837 extern void expand_end_catch_block (void);
3838 extern void expand_builtin_throw (void);
3839 extern void expand_eh_spec_block (tree);
3840 extern void expand_exception_blocks (void);
3841 extern tree build_exc_ptr (void);
3842 extern tree build_throw (tree);
3843 extern void mark_all_runtime_matches (void);
3844 extern int nothrow_libfn_p (tree);
3845 extern void check_handlers (tree);
3846 extern void choose_personality_routine (enum languages);
3849 extern rtx cxx_expand_expr (tree, rtx,
3852 extern tree cplus_expand_constant (tree);
3855 extern int is_friend (tree, tree);
3856 extern void make_friend_class (tree, tree);
3857 extern void add_friend (tree, tree);
3858 extern tree do_friend (tree, tree, tree, tree, tree, enum overload_flags, tree, int);
3861 extern tree expand_member_init (tree);
3862 extern void emit_mem_initializers (tree);
3863 extern tree build_aggr_init (tree, tree, int);
3864 extern tree build_init (tree, tree, int);
3865 extern int is_aggr_type (tree, int);
3866 extern tree get_aggr_from_typedef (tree, int);
3867 extern tree get_type_value (tree);
3868 extern tree build_zero_init (tree, tree, bool);
3869 extern tree build_offset_ref (tree, tree);
3870 extern tree resolve_offset_ref (tree);
3871 extern tree build_new (tree, tree, tree, int);
3872 extern tree build_vec_init (tree, tree, tree, int);
3873 extern tree build_x_delete (tree, int, tree);
3874 extern tree build_delete (tree, tree, special_function_kind, int, int);
3875 extern void push_base_cleanups (void);
3876 extern tree build_vbase_delete (tree, tree);
3877 extern tree build_vec_delete (tree, tree, special_function_kind, int);
3878 extern tree create_temporary_var (tree);
3879 extern void begin_init_stmts (tree *, tree *);
3880 extern tree finish_init_stmts (tree, tree);
3881 extern void initialize_vtbl_ptrs (tree);
3882 extern tree build_java_class_ref (tree);
3887 extern void cxx_dup_lang_specific_decl (tree);
3888 extern tree make_pointer_declarator (tree, tree);
3889 extern tree make_reference_declarator (tree, tree);
3890 extern tree make_call_declarator (tree, tree, tree, tree);
3891 extern void set_quals_and_spec (tree, tree, tree);
3892 extern void print_parse_statistics (void);
3893 extern void do_pending_inlines (void);
3894 extern void yyungetc (int, int);
3895 extern void snarf_method (tree);
3897 extern void note_got_semicolon (tree);
3898 extern void note_list_got_semicolon (tree);
3899 extern void see_typename (void);
3900 extern tree unqualified_name_lookup_error (tree);
3901 extern tree unqualified_fn_lookup_error (tree);
3902 extern tree build_lang_decl (enum tree_code, tree, tree);
3903 extern void retrofit_lang_decl (tree);
3904 extern tree copy_decl (tree);
3905 extern tree copy_type (tree);
3906 extern tree cxx_make_type (enum tree_code);
3907 extern tree make_aggr_type (enum tree_code);
3908 extern void yyerror (const char *);
3909 extern void yyhook (int);
3910 extern int cp_type_qual_from_rid (tree);
3911 extern bool cxx_init (void);
3912 extern void cxx_finish (void);
3915 extern void init_method (void);
3916 extern void set_mangled_name_for_decl (tree);
3917 extern tree hack_identifier (tree, tree);
3918 extern tree make_thunk (tree, bool, tree, tree);
3919 extern void finish_thunk (tree);
3920 extern void use_thunk (tree, bool);
3921 extern void synthesize_method (tree);
3922 extern tree implicitly_declare_fn (special_function_kind, tree, bool);
3923 extern tree skip_artificial_parms_for (tree, tree);
3926 extern void optimize_function (tree);
3927 extern bool calls_setjmp_p (tree);
3928 extern bool maybe_clone_body (tree);
3931 extern void check_template_shadow (tree);
3932 extern tree get_innermost_template_args (tree, int);
3933 extern void maybe_begin_member_template_processing (tree);
3934 extern void maybe_end_member_template_processing (void);
3935 extern tree finish_member_template_decl (tree);
3936 extern void begin_template_parm_list (void);
3937 extern void begin_specialization (void);
3938 extern void reset_specialization (void);
3939 extern void end_specialization (void);
3940 extern void begin_explicit_instantiation (void);
3941 extern void end_explicit_instantiation (void);
3942 extern tree check_explicit_specialization (tree, tree, int, int);
3943 extern tree process_template_parm (tree, tree);
3944 extern tree end_template_parm_list (tree);
3945 extern void end_template_decl (void);
3946 extern tree current_template_args (void);
3947 extern tree push_template_decl (tree);
3948 extern tree push_template_decl_real (tree, int);
3949 extern void redeclare_class_template (tree, tree);
3950 extern tree lookup_template_class (tree, tree, tree, tree, int, tsubst_flags_t);
3951 extern tree lookup_template_function (tree, tree);
3952 extern int uses_template_parms (tree);
3953 extern tree instantiate_class_template (tree);
3954 extern tree instantiate_template (tree, tree, tsubst_flags_t);
3955 extern int fn_type_unification (tree, tree, tree, tree, tree, unification_kind_t, int);
3956 extern tree tinst_for_decl (void);
3957 extern void mark_decl_instantiated (tree, int);
3958 extern int more_specialized (tree, tree, int, int);
3959 extern void mark_class_instantiated (tree, int);
3960 extern void do_decl_instantiation (tree, tree);
3961 extern void do_type_instantiation (tree, tree, tsubst_flags_t);
3962 extern tree instantiate_decl (tree, int);
3963 extern tree get_bindings (tree, tree, tree);
3964 extern int push_tinst_level (tree);
3965 extern void pop_tinst_level (void);
3966 extern int more_specialized_class (tree, tree);
3967 extern int is_member_template (tree);
3968 extern int comp_template_parms (tree, tree);
3969 extern int template_class_depth (tree);
3970 extern int is_specialization_of (tree, tree);
3971 extern int comp_template_args (tree, tree);
3972 extern void maybe_process_partial_specialization (tree);
3973 extern void maybe_check_template_type (tree);
3974 extern tree most_specialized_instantiation (tree);
3975 extern void print_candidates (tree);
3976 extern int instantiate_pending_templates (void);
3977 extern tree tsubst_default_argument (tree, tree, tree);
3978 extern tree tsubst_copy_and_build (tree, tree, tsubst_flags_t, tree, bool);
3979 extern tree most_general_template (tree);
3980 extern tree get_mostly_instantiated_function_type (tree);
3981 extern int problematic_instantiation_changed (void);
3982 extern void record_last_problematic_instantiation (void);
3983 extern tree current_instantiation (void);
3984 extern tree maybe_get_template_decl_from_type_decl (tree);
3985 extern int processing_template_parmlist;
3986 extern bool dependent_type_p (tree);
3987 extern bool any_dependent_template_arguments_p (tree);
3988 extern bool dependent_template_p (tree);
3989 extern bool dependent_template_id_p (tree, tree);
3990 extern bool type_dependent_expression_p (tree);
3991 extern bool any_type_dependent_arguments_p (tree);
3992 extern bool value_dependent_expression_p (tree);
3993 extern tree resolve_typename_type (tree, bool);
3994 extern tree template_for_substitution (tree);
3995 extern tree build_non_dependent_expr (tree);
3996 extern tree build_non_dependent_args (tree);
3997 extern bool reregister_specialization (tree, tree, tree);
4000 extern void repo_template_used (tree);
4001 extern void repo_template_instantiated (tree, bool);
4002 extern void init_repo (const char *);
4003 extern void finish_repo (void);
4006 /* A varray of all tinfo decls that haven't been emitted yet. */
4007 extern GTY(()) varray_type unemitted_tinfo_decls;
4009 extern void init_rtti_processing (void);
4010 extern tree build_typeid (tree);
4011 extern tree get_tinfo_decl (tree);
4012 extern tree get_typeid (tree);
4013 extern tree build_dynamic_cast (tree, tree);
4014 extern void emit_support_tinfos (void);
4015 extern bool emit_tinfo_decl (tree);
4018 extern tree lookup_base (tree, tree, base_access, base_kind *);
4019 extern int types_overlap_p (tree, tree);
4020 extern tree get_vbase (tree, tree);
4021 extern tree get_dynamic_cast_base_type (tree, tree);
4022 extern int accessible_p (tree, tree);
4023 extern tree lookup_field_1 (tree, tree, bool);
4024 extern tree lookup_field (tree, tree, int, bool);
4025 extern int lookup_fnfields_1 (tree, tree);
4026 extern tree lookup_fnfields (tree, tree, int);
4027 extern tree lookup_member (tree, tree, int, bool);
4028 extern int look_for_overrides (tree, tree);
4029 extern void get_pure_virtuals (tree);
4030 extern void get_vbase_types (tree);
4031 extern void maybe_suppress_debug_info (tree);
4032 extern void note_debug_info_needed (tree);
4033 extern void push_class_decls (tree);
4034 extern void pop_class_decls (void);
4035 extern void unuse_fields (tree);
4036 extern void print_search_statistics (void);
4037 extern void init_search_processing (void);
4038 extern void reinit_search_statistics (void);
4039 extern tree current_scope (void);
4040 extern int at_function_scope_p (void);
4041 extern bool at_class_scope_p (void);
4042 extern tree context_for_name_lookup (tree);
4043 extern tree lookup_conversions (tree);
4044 extern tree binfo_for_vtable (tree);
4045 extern tree binfo_from_vbase (tree);
4046 extern tree look_for_overrides_here (tree, tree);
4047 extern int check_final_overrider (tree, tree);
4048 extern tree dfs_walk (tree,
4049 tree (*) (tree, void *),
4050 tree (*) (tree, int, void *),
4052 extern tree dfs_walk_real (tree,
4053 tree (*) (tree, void *),
4054 tree (*) (tree, void *),
4055 tree (*) (tree, int, void *),
4057 extern tree dfs_unmark (tree, void *);
4058 extern tree markedp (tree, int, void *);
4059 extern tree unmarkedp (tree, int, void *);
4060 extern tree binfo_via_virtual (tree, tree);
4061 extern tree build_baselink (tree, tree, tree, tree);
4062 extern tree adjust_result_of_qualified_name_lookup
4064 extern tree copied_binfo (tree, tree);
4065 extern tree original_binfo (tree, tree);
4067 /* in semantics.c */
4068 extern void push_deferring_access_checks (deferring_kind);
4069 extern void resume_deferring_access_checks (void);
4070 extern void stop_deferring_access_checks (void);
4071 extern void pop_deferring_access_checks (void);
4072 extern tree get_deferred_access_checks (void);
4073 extern void pop_to_parent_deferring_access_checks (void);
4074 extern void perform_deferred_access_checks (void);
4075 extern void perform_or_defer_access_check (tree, tree);
4076 extern void init_cp_semantics (void);
4077 extern tree finish_expr_stmt (tree);
4078 extern tree begin_if_stmt (void);
4079 extern void finish_if_stmt_cond (tree, tree);
4080 extern tree finish_then_clause (tree);
4081 extern void begin_else_clause (void);
4082 extern void finish_else_clause (tree);
4083 extern void finish_if_stmt (void);
4084 extern tree begin_while_stmt (void);
4085 extern void finish_while_stmt_cond (tree, tree);
4086 extern void finish_while_stmt (tree);
4087 extern tree begin_do_stmt (void);
4088 extern void finish_do_body (tree);
4089 extern void finish_do_stmt (tree, tree);
4090 extern tree finish_return_stmt (tree);
4091 extern tree begin_for_stmt (void);
4092 extern void finish_for_init_stmt (tree);
4093 extern void finish_for_cond (tree, tree);
4094 extern void finish_for_expr (tree, tree);
4095 extern void finish_for_stmt (tree);
4096 extern tree finish_break_stmt (void);
4097 extern tree finish_continue_stmt (void);
4098 extern tree begin_switch_stmt (void);
4099 extern void finish_switch_cond (tree, tree);
4100 extern void finish_switch_stmt (tree);
4101 extern tree finish_case_label (tree, tree);
4102 extern tree finish_goto_stmt (tree);
4103 extern tree begin_try_block (void);
4104 extern void finish_try_block (tree);
4105 extern tree begin_eh_spec_block (void);
4106 extern void finish_eh_spec_block (tree, tree);
4107 extern void finish_handler_sequence (tree);
4108 extern tree begin_function_try_block (void);
4109 extern void finish_function_try_block (tree);
4110 extern void finish_function_handler_sequence (tree);
4111 extern void finish_cleanup_try_block (tree);
4112 extern tree begin_handler (void);
4113 extern void finish_handler_parms (tree, tree);
4114 extern void begin_catch_block (tree);
4115 extern void finish_handler (tree);
4116 extern void finish_cleanup (tree, tree);
4117 extern tree begin_compound_stmt (int);
4118 extern tree finish_compound_stmt (int, tree);
4119 extern tree finish_asm_stmt (tree, tree, tree, tree, tree);
4120 extern tree finish_label_stmt (tree);
4121 extern void finish_label_decl (tree);
4122 extern void finish_subobject (tree);
4123 extern tree finish_parenthesized_expr (tree);
4124 extern tree finish_non_static_data_member (tree, tree);
4125 extern tree begin_stmt_expr (void);
4126 extern tree finish_stmt_expr (tree);
4127 extern tree perform_koenig_lookup (tree, tree);
4128 extern tree finish_call_expr (tree, tree, bool);
4129 extern tree finish_increment_expr (tree, enum tree_code);
4130 extern tree finish_this_expr (void);
4131 extern tree finish_object_call_expr (tree, tree, tree);
4132 extern tree finish_pseudo_destructor_expr (tree, tree, tree);
4133 extern tree finish_unary_op_expr (enum tree_code, tree);
4134 extern tree finish_compound_literal (tree, tree);
4135 extern tree finish_fname (tree);
4136 extern int begin_function_definition (tree, tree, tree);
4137 extern void finish_translation_unit (void);
4138 extern tree finish_template_type_parm (tree, tree);
4139 extern tree finish_template_template_parm (tree, tree);
4140 extern tree finish_parmlist (tree, int);
4141 extern tree begin_class_definition (tree);
4142 extern tree finish_class_definition (tree, tree, int, int);
4143 extern void finish_default_args (void);
4144 extern tree finish_member_class_template (tree);
4145 extern void finish_template_decl (tree);
4146 extern tree finish_template_type (tree, tree, int);
4147 extern tree finish_base_specifier (tree, tree, bool);
4148 extern void finish_member_declaration (tree);
4149 extern void check_multiple_declarators (void);
4150 extern tree finish_id_expression (tree, tree, tree,
4151 cp_id_kind *, tree *,
4154 extern tree finish_typeof (tree);
4155 extern tree finish_sizeof (tree);
4156 extern tree finish_alignof (tree);
4157 extern void finish_decl_cleanup (tree, tree);
4158 extern void finish_eh_cleanup (tree);
4159 extern void expand_body (tree);
4160 extern tree nullify_returns_r (tree *, int *, void *);
4161 extern void do_pushlevel (scope_kind);
4162 extern tree do_poplevel (void);
4163 extern void finish_mem_initializers (tree);
4164 extern void setup_vtbl_ptr (tree, tree);
4165 extern void clear_out_block (void);
4166 extern tree begin_global_stmt_expr (void);
4167 extern tree finish_global_stmt_expr (tree);
4168 extern tree check_template_template_default_arg (tree);
4169 extern void expand_or_defer_fn (tree);
4170 extern void check_accessibility_of_qualified_id (tree, tree, tree);
4171 extern tree finish_qualified_id_expr (tree, tree, bool, bool);
4174 extern void lang_check_failed (const char *, int,
4176 extern tree stabilize_expr (tree, tree *);
4177 extern tree cxx_unsave_expr_now (tree);
4178 extern tree cxx_maybe_build_cleanup (tree);
4179 extern void init_tree (void);
4180 extern int pod_type_p (tree);
4181 extern int zero_init_p (tree);
4182 extern tree canonical_type_variant (tree);
4183 extern tree copy_base_binfos (tree, tree, tree);
4184 extern int member_p (tree);
4185 extern cp_lvalue_kind real_lvalue_p (tree);
4186 extern int non_cast_lvalue_p (tree);
4187 extern cp_lvalue_kind real_non_cast_lvalue_p (tree);
4188 extern int non_cast_lvalue_or_else (tree, const char *);
4189 extern tree build_min (enum tree_code, tree,
4191 extern tree build_min_nt (enum tree_code, ...);
4192 extern tree build_cplus_new (tree, tree);
4193 extern tree get_target_expr (tree);
4194 extern tree build_cplus_method_type (tree, tree, tree);
4195 extern tree build_cplus_staticfn_type (tree, tree, tree);
4196 extern tree build_cplus_array_type (tree, tree);
4197 extern tree hash_tree_cons (tree, tree, tree);
4198 extern tree hash_tree_chain (tree, tree);
4199 extern tree hash_chainon (tree, tree);
4200 extern tree make_binfo (tree, tree, tree, tree);
4201 extern int count_functions (tree);
4202 extern int is_overloaded_fn (tree);
4203 extern tree get_first_fn (tree);
4204 extern int bound_pmf_p (tree);
4205 extern tree ovl_cons (tree, tree);
4206 extern tree build_overload (tree, tree);
4207 extern tree function_arg_chain (tree);
4208 extern int promotes_to_aggr_type (tree, enum tree_code);
4209 extern int is_aggr_type_2 (tree, tree);
4210 extern const char *cxx_printable_name (tree, int);
4211 extern tree build_exception_variant (tree, tree);
4212 extern tree bind_template_template_parm (tree, tree);
4213 extern tree array_type_nelts_total (tree);
4214 extern tree array_type_nelts_top (tree);
4215 extern tree break_out_target_exprs (tree);
4216 extern tree get_type_decl (tree);
4217 extern tree vec_binfo_member (tree, tree);
4218 extern tree decl_namespace_context (tree);
4219 extern tree lvalue_type (tree);
4220 extern tree error_type (tree);
4221 extern tree build_zc_wrapper (struct z_candidate *);
4222 extern int varargs_function_p (tree);
4223 extern int really_overloaded_fn (tree);
4224 extern bool cp_tree_equal (tree, tree);
4225 extern tree no_linkage_check (tree);
4226 extern void debug_binfo (tree);
4227 extern tree build_dummy_object (tree);
4228 extern tree maybe_dummy_object (tree, tree *);
4229 extern int is_dummy_object (tree);
4230 extern const struct attribute_spec cxx_attribute_table[];
4231 extern tree make_ptrmem_cst (tree, tree);
4232 extern tree cp_build_qualified_type_real (tree, int, tsubst_flags_t);
4233 #define cp_build_qualified_type(TYPE, QUALS) \
4234 cp_build_qualified_type_real ((TYPE), (QUALS), tf_error | tf_warning)
4235 extern tree build_shared_int_cst (int);
4236 extern special_function_kind special_function_p (tree);
4237 extern bool name_p (tree);
4238 extern int count_trees (tree);
4239 extern int char_type_p (tree);
4240 extern void verify_stmt_tree (tree);
4241 extern tree find_tree (tree, tree);
4242 extern linkage_kind decl_linkage (tree);
4243 extern tree cp_walk_subtrees (tree*, int*, walk_tree_fn,
4245 extern int cp_cannot_inline_tree_fn (tree*);
4246 extern tree cp_add_pending_fn_decls (void*,tree);
4247 extern int cp_is_overload_p (tree);
4248 extern int cp_auto_var_in_fn_p (tree,tree);
4249 extern tree cp_copy_res_decl_for_inlining (tree, tree, tree, void*,
4251 extern int cp_start_inlining (tree);
4252 extern void cp_end_inlining (tree);
4255 extern int string_conv_p (tree, tree, int);
4256 extern tree cp_truthvalue_conversion (tree);
4257 extern tree condition_conversion (tree);
4258 extern tree target_type (tree);
4259 extern tree require_complete_type (tree);
4260 extern tree complete_type (tree);
4261 extern tree complete_type_or_diagnostic (tree, tree, int);
4262 #define complete_type_or_else(T,V) (complete_type_or_diagnostic ((T), (V), 0))
4263 extern int type_unknown_p (tree);
4264 extern tree commonparms (tree, tree);
4265 extern tree original_type (tree);
4266 extern bool comp_except_specs (tree, tree, bool);
4267 extern bool comptypes (tree, tree, int);
4268 extern int comp_target_types (tree, tree, int);
4269 extern bool compparms (tree, tree);
4270 extern int comp_cv_qualification (tree, tree);
4271 extern int comp_cv_qual_signature (tree, tree);
4272 extern tree expr_sizeof (tree);
4273 extern tree cxx_sizeof_or_alignof_type (tree, enum tree_code, int);
4274 #define cxx_sizeof_nowarn(T) cxx_sizeof_or_alignof_type (T, SIZEOF_EXPR, false)
4275 extern tree inline_conversion (tree);
4276 extern tree decay_conversion (tree);
4277 extern tree perform_integral_promotions (tree);
4278 extern tree build_class_member_access_expr (tree, tree, tree, bool);
4279 extern tree finish_class_member_access_expr (tree, tree);
4280 extern tree build_x_indirect_ref (tree, const char *);
4281 extern tree build_indirect_ref (tree, const char *);
4282 extern tree build_array_ref (tree, tree);
4283 extern tree get_member_function_from_ptrfunc (tree *, tree);
4284 extern tree convert_arguments (tree, tree, tree, int);
4285 extern tree build_x_binary_op (enum tree_code, tree, tree);
4286 extern tree build_x_unary_op (enum tree_code, tree);
4287 extern tree unary_complex_lvalue (enum tree_code, tree);
4288 extern tree build_x_conditional_expr (tree, tree, tree);
4289 extern tree build_x_compound_expr (tree, tree);
4290 extern tree build_compound_expr (tree);
4291 extern tree build_static_cast (tree, tree);
4292 extern tree build_reinterpret_cast (tree, tree);
4293 extern tree build_const_cast (tree, tree);
4294 extern tree build_c_cast (tree, tree);
4295 extern tree build_x_modify_expr (tree, enum tree_code, tree);
4296 extern tree build_modify_expr (tree, enum tree_code, tree);
4297 extern tree dubious_conversion_warnings (tree, tree, const char *, tree, int);
4298 extern tree convert_for_initialization (tree, tree, tree, int, const char *, tree, int);
4299 extern int comp_ptr_ttypes (tree, tree);
4300 extern int ptr_reasonably_similar (tree, tree);
4301 extern tree build_ptrmemfunc (tree, tree, int);
4302 extern int cp_type_quals (tree);
4303 extern bool cp_has_mutable_p (tree);
4304 extern bool at_least_as_qualified_p (tree, tree);
4305 extern bool more_qualified_p (tree, tree);
4306 extern tree build_ptrmemfunc1 (tree, tree, tree);
4307 extern void expand_ptrmemfunc_cst (tree, tree *, tree *);
4308 extern tree pfn_from_ptrmemfunc (tree);
4309 extern tree type_after_usual_arithmetic_conversions (tree, tree);
4310 extern tree composite_pointer_type (tree, tree, tree, tree,
4312 extern tree merge_types (tree, tree);
4313 extern tree check_return_expr (tree);
4314 #define cp_build_binary_op(code, arg1, arg2) \
4315 build_binary_op(code, arg1, arg2, 1)
4316 #define cxx_sizeof(T) cxx_sizeof_or_alignof_type (T, SIZEOF_EXPR, true)
4317 #define cxx_alignof(T) cxx_sizeof_or_alignof_type (T, ALIGNOF_EXPR, true)
4318 extern tree build_ptrmemfunc_access_expr (tree, tree);
4319 extern tree build_address (tree);
4320 extern tree build_nop (tree, tree);
4321 extern tree non_reference (tree);
4324 extern void require_complete_eh_spec_types (tree, tree);
4325 extern void cxx_incomplete_type_diagnostic (tree, tree, int);
4326 #undef cxx_incomplete_type_error
4327 extern void cxx_incomplete_type_error (tree, tree);
4328 #define cxx_incomplete_type_error(V,T) \
4329 (cxx_incomplete_type_diagnostic ((V), (T), 0))
4330 extern tree error_not_base_type (tree, tree);
4331 extern tree binfo_or_else (tree, tree);
4332 extern void readonly_error (tree, const char *, int);
4333 extern int abstract_virtuals_error (tree, tree);
4335 extern tree store_init_value (tree, tree);
4336 extern tree digest_init (tree, tree, tree *);
4337 extern tree build_scoped_ref (tree, tree, tree *);
4338 extern tree build_x_arrow (tree);
4339 extern tree build_m_component_ref (tree, tree);
4340 extern tree build_functional_cast (tree, tree);
4341 extern tree add_exception_specifier (tree, tree, int);
4342 extern tree merge_exception_specifiers (tree, tree);
4345 extern void init_mangle (void);
4346 extern void mangle_decl (tree);
4347 extern const char *mangle_type_string (tree);
4348 extern tree mangle_type (tree);
4349 extern tree mangle_typeinfo_for_type (tree);
4350 extern tree mangle_typeinfo_string_for_type (tree);
4351 extern tree mangle_vtbl_for_type (tree);
4352 extern tree mangle_vtt_for_type (tree);
4353 extern tree mangle_ctor_vtbl_for_type (tree, tree);
4354 extern tree mangle_thunk (tree, int, tree, tree);
4355 extern tree mangle_conv_op_name_for_type (tree);
4356 extern tree mangle_guard_variable (tree);
4357 extern tree mangle_ref_init_variable (tree);
4360 extern bool cp_dump_tree (void *, tree);
4364 /* In order for the format checking to accept the C++ frontend
4365 diagnostic framework extensions, you must include this file before
4366 toplev.h, not after. */
4367 #define GCC_DIAG_STYLE __gcc_cxxdiag__
4368 #if GCC_VERSION >= 3004
4369 #define ATTRIBUTE_GCC_CXXDIAG(m, n) __attribute__ ((__format__ (GCC_DIAG_STYLE, m, n))) ATTRIBUTE_NONNULL(m)
4371 #define ATTRIBUTE_GCC_CXXDIAG(m, n) ATTRIBUTE_NONNULL(m)
4374 extern void cp_error_at (const char *, ...) ATTRIBUTE_GCC_CXXDIAG(1, 2);
4375 extern void cp_warning_at (const char *, ...) ATTRIBUTE_GCC_CXXDIAG(1, 2);
4376 extern void cp_pedwarn_at (const char *, ...) ATTRIBUTE_GCC_CXXDIAG(1, 2);
4378 #endif /* ! GCC_CP_TREE_H */