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 COMPOUND_EXPR_OVERLOADED (in COMPOUND_EXPR).
43 TREE_INDIRECT_USING (in NAMESPACE_DECL).
44 ICS_USER_FLAG (in _CONV)
45 CLEANUP_P (in TRY_BLOCK)
46 AGGR_INIT_VIA_CTOR_P (in AGGR_INIT_EXPR)
47 PTRMEM_OK_P (in ADDR_EXPR, OFFSET_REF)
48 PARMLIST_ELLIPSIS_P (in PARMLIST)
49 DECL_PRETTY_FUNCTION_P (in VAR_DECL)
50 KOENIG_LOOKUP_P (in CALL_EXPR)
51 1: IDENTIFIER_VIRTUAL_P.
52 TI_PENDING_TEMPLATE_FLAG.
53 TEMPLATE_PARMS_FOR_INLINE.
54 DELETE_EXPR_USE_VEC (in DELETE_EXPR).
55 (TREE_CALLS_NEW) (in _EXPR or _REF) (commented-out).
56 TYPE_BASE_CONVS_MAY_REQUIRE_CODE_P (in _TYPE).
57 ICS_ELLIPSIS_FLAG (in _CONV)
58 BINFO_DEPENDENT_BASE_P (in BINFO)
59 DECL_INITIALIZED_P (in VAR_DECL)
60 2: IDENTIFIER_OPNAME_P.
61 TYPE_POLYMORPHIC_P (in _TYPE)
62 ICS_THIS_FLAG (in _CONV)
63 BINFO_LOST_PRIMARY_P (in BINFO)
64 TREE_PARMLIST (in TREE_LIST)
65 DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (in VAR_DECL)
66 3: TYPE_USES_VIRTUAL_BASECLASSES (in a class TYPE).
67 BINFO_VTABLE_PATH_MARKED.
68 BINFO_PUSHDECLS_MARKED.
69 (TREE_REFERENCE_EXPR) (in NON_LVALUE_EXPR) (commented-out).
70 ICS_BAD_FLAG (in _CONV)
71 FN_TRY_BLOCK_P (in TRY_BLOCK)
72 IDENTIFIER_CTOR_OR_DTOR_P (in IDENTIFIER_NODE)
73 4: BINFO_NEW_VTABLE_MARKED.
74 TREE_HAS_CONSTRUCTOR (in INDIRECT_REF, SAVE_EXPR, CONSTRUCTOR,
76 NEED_TEMPORARY_P (in REF_BIND, BASE_CONV)
77 IDENTIFIER_TYPENAME_P (in IDENTIFIER_NODE)
78 5: C_IS_RESERVED_WORD (in IDENTIFIER_NODE)
79 DECL_VTABLE_OR_VTT_P (in VAR_DECL)
80 6: For future expansion
82 Usage of TYPE_LANG_FLAG_?:
84 1: TYPE_HAS_CONSTRUCTOR.
85 2: TYPE_HAS_DESTRUCTOR.
87 4: TYPE_HAS_NONTRIVIAL_DESTRUCTOR
89 6: TYPE_DEPENDENT_P_VALID
91 Usage of DECL_LANG_FLAG_?:
92 0: DECL_ERROR_REPORTED (in VAR_DECL).
93 DECL_TEMPLATE_PARM_P (in PARM_DECL, CONST_DECL, TYPE_DECL, or TEMPLATE_DECL)
94 DECL_LOCAL_FUNCTION_P (in FUNCTION_DECL)
95 DECL_MUTABLE_P (in FIELD_DECL)
96 1: C_TYPEDEF_EXPLICITLY_SIGNED (in TYPE_DECL).
97 DECL_TEMPLATE_INSTANTIATED (in a VAR_DECL or a FUNCTION_DECL)
98 2: DECL_THIS_EXTERN (in VAR_DECL or FUNCTION_DECL).
99 DECL_IMPLICIT_TYPEDEF_P (in a TYPE_DECL)
101 4: DECL_C_BIT_FIELD (in a FIELD_DECL)
102 DECL_VAR_MARKED_P (in a VAR_DECL)
103 DECL_SELF_REFERENCE_P (in a TYPE_DECL)
104 5: DECL_INTERFACE_KNOWN.
105 6: DECL_THIS_STATIC (in VAR_DECL or FUNCTION_DECL).
106 7: DECL_DEAD_FOR_LOCAL (in VAR_DECL).
107 DECL_THUNK_P (in a member FUNCTION_DECL)
109 Usage of language-independent fields in a language-dependent manner:
112 This field is BINFO_INDIRECT_PRIMARY_P in a BINFO.
115 This field is used by TYPENAME_TYPEs, TEMPLATE_TYPE_PARMs, and so
116 forth as a substitute for the mark bits provided in `lang_type'.
117 At present, only the six low-order bits are used.
120 For an ENUMERAL_TYPE, this is ENUM_TEMPLATE_INFO.
121 For a FUNCTION_TYPE or METHOD_TYPE, this is TYPE_RAISES_EXCEPTIONS
124 For a binfo, this is a TREE_LIST. There is an entry for each
125 virtual function declared either in BINFO or its direct and
126 indirect primary bases.
128 The BV_DELTA of each node gives the amount by which to adjust the
129 `this' pointer when calling the function. If the method is an
130 overridden version of a base class method, then it is assumed
131 that, prior to adjustment, the this pointer points to an object
134 The BV_VCALL_INDEX of each node, if non-NULL, gives the vtable
135 index of the vcall offset for this entry.
137 The BV_FN is the declaration for the virtual function itself.
140 This is an expression with POINTER_TYPE that gives the value
141 to which the vptr should be initialized. Use get_vtbl_decl_for_binfo
142 to extract the VAR_DECL for the complete vtable.
145 For a VAR_DECL this is DECL_ANON_UNION_ELEMS.
148 This field is NULL for a non-virtual function. For a virtual
149 function, it is eventually set to an INTEGER_CST indicating the
150 index in the vtable at which this function can be found. When
151 a virtual function is declared, but before it is known what
152 function is overridden, this field is the error_mark_node.
154 Temporarily, it may be set to a TREE_LIST whose TREE_VALUE is
155 the virtual function this one overrides, and whose TREE_CHAIN is
156 the old DECL_VINDEX. */
158 /* Language-specific tree checkers. */
160 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
162 #define VAR_OR_FUNCTION_DECL_CHECK(NODE) __extension__ \
163 ({ const tree __t = (NODE); \
164 enum tree_code const __c = TREE_CODE(__t); \
165 if (__c != VAR_DECL && __c != FUNCTION_DECL) \
166 tree_check_failed (__t, VAR_DECL, __FILE__, __LINE__, \
170 #define VAR_FUNCTION_OR_PARM_DECL_CHECK(NODE) __extension__ \
171 ({ const tree __t = (NODE); \
172 enum tree_code const __c = TREE_CODE(__t); \
173 if (__c != VAR_DECL \
174 && __c != FUNCTION_DECL \
175 && __c != PARM_DECL) \
176 tree_check_failed (__t, VAR_DECL, __FILE__, __LINE__, \
180 #define VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK(NODE) __extension__ \
181 ({ const tree __t = (NODE); \
182 enum tree_code const __c = TREE_CODE(__t); \
183 if (__c != VAR_DECL \
184 && __c != FUNCTION_DECL \
185 && __c != TYPE_DECL \
186 && __c != TEMPLATE_DECL) \
187 tree_check_failed (__t, VAR_DECL, __FILE__, __LINE__, \
191 #define RECORD_OR_UNION_TYPE_CHECK(NODE) __extension__ \
192 ({ const tree __t = (NODE); \
193 enum tree_code const __c = TREE_CODE(__t); \
194 if (__c != RECORD_TYPE && __c != UNION_TYPE) \
195 tree_check_failed (__t, RECORD_TYPE, __FILE__, __LINE__, \
199 #define BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK(NODE) __extension__ \
200 ({ const tree __t = (NODE); \
201 enum tree_code const __c = TREE_CODE(__t); \
202 if (__c != BOUND_TEMPLATE_TEMPLATE_PARM) \
203 tree_check_failed (__t, BOUND_TEMPLATE_TEMPLATE_PARM, \
204 __FILE__, __LINE__, __FUNCTION__); \
207 #else /* not ENABLE_TREE_CHECKING, or not gcc */
209 #define VAR_OR_FUNCTION_DECL_CHECK(NODE) (NODE)
210 #define VAR_FUNCTION_OR_PARM_DECL_CHECK(NODE) (NODE)
211 #define VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK(NODE) (NODE)
212 #define RECORD_OR_UNION_TYPE_CHECK(NODE) (NODE)
213 #define BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK(NODE) (NODE)
217 /* Returns TRUE if generated code should match ABI version N or
218 greater is in use. */
220 #define abi_version_at_least(N) \
221 (flag_abi_version == 0 || flag_abi_version >= (N))
224 /* Language-dependent contents of an identifier. */
226 struct lang_identifier GTY(())
228 struct c_common_identifier c_common;
229 cxx_binding *namespace_bindings;
230 cxx_binding *bindings;
232 tree class_template_info;
238 /* In an IDENTIFIER_NODE, nonzero if this identifier is actually a
239 keyword. C_RID_CODE (node) is then the RID_* value of the keyword,
240 and C_RID_YYCODE is the token number wanted by Yacc. */
242 #define C_IS_RESERVED_WORD(ID) TREE_LANG_FLAG_5 (ID)
244 #define LANG_IDENTIFIER_CAST(NODE) \
245 ((struct lang_identifier*)IDENTIFIER_NODE_CHECK (NODE))
247 typedef struct template_parm_index_s GTY(())
249 struct tree_common common;
252 HOST_WIDE_INT orig_level;
254 } template_parm_index;
256 struct ptrmem_cst GTY(())
258 struct tree_common common;
259 /* This isn't used, but the middle-end expects all constants to have
264 typedef struct ptrmem_cst * ptrmem_cst_t;
266 #define IDENTIFIER_GLOBAL_VALUE(NODE) \
267 namespace_binding ((NODE), global_namespace)
268 #define SET_IDENTIFIER_GLOBAL_VALUE(NODE, VAL) \
269 set_namespace_binding ((NODE), global_namespace, (VAL))
270 #define IDENTIFIER_NAMESPACE_VALUE(NODE) \
271 namespace_binding ((NODE), current_namespace)
272 #define SET_IDENTIFIER_NAMESPACE_VALUE(NODE, VAL) \
273 set_namespace_binding ((NODE), current_namespace, (VAL))
275 #define CLEANUP_P(NODE) TREE_LANG_FLAG_0 (TRY_BLOCK_CHECK (NODE))
277 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, in the usual
279 #define same_type_p(TYPE1, TYPE2) \
280 comptypes ((TYPE1), (TYPE2), COMPARE_STRICT)
282 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, ignoring
283 top-level qualifiers. */
284 #define same_type_ignoring_top_level_qualifiers_p(TYPE1, TYPE2) \
285 same_type_p (TYPE_MAIN_VARIANT (TYPE1), TYPE_MAIN_VARIANT (TYPE2))
287 /* Nonzero if we are presently building a statement tree, rather
288 than expanding each statement as we encounter it. */
289 #define building_stmt_tree() (last_tree != NULL_TREE)
291 /* Returns nonzero iff NODE is a declaration for the global function
293 #define DECL_MAIN_P(NODE) \
294 (DECL_EXTERN_C_FUNCTION_P (NODE) \
295 && DECL_NAME (NODE) != NULL_TREE \
296 && MAIN_NAME_P (DECL_NAME (NODE)))
298 /* The overloaded FUNCTION_DECL. */
299 #define OVL_FUNCTION(NODE) \
300 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->function)
301 #define OVL_CHAIN(NODE) TREE_CHAIN (NODE)
302 /* Polymorphic access to FUNCTION and CHAIN. */
303 #define OVL_CURRENT(NODE) \
304 ((TREE_CODE (NODE) == OVERLOAD) ? OVL_FUNCTION (NODE) : (NODE))
305 #define OVL_NEXT(NODE) \
306 ((TREE_CODE (NODE) == OVERLOAD) ? TREE_CHAIN (NODE) : NULL_TREE)
307 /* If set, this was imported in a using declaration.
308 This is not to confuse with being used somewhere, which
309 is not important for this node. */
310 #define OVL_USED(NODE) TREE_USED (NODE)
312 struct tree_overload GTY(())
314 struct tree_common common;
318 /* Returns true iff NODE is a BASELINK. */
319 #define BASELINK_P(NODE) \
320 (TREE_CODE (NODE) == BASELINK)
321 /* The BINFO indicating the base from which the BASELINK_FUNCTIONS came. */
322 #define BASELINK_BINFO(NODE) \
323 (((struct tree_baselink*) BASELINK_CHECK (NODE))->binfo)
324 /* The functions referred to by the BASELINK; either a FUNCTION_DECL,
325 a TEMPLATE_DECL, an OVERLOAD, or a TEMPLATE_ID_EXPR. */
326 #define BASELINK_FUNCTIONS(NODE) \
327 (((struct tree_baselink*) BASELINK_CHECK (NODE))->functions)
328 /* The BINFO in which the search for the functions indicated by this baselink
329 began. This base is used to determine the accessibility of functions
330 selected by overload resolution. */
331 #define BASELINK_ACCESS_BINFO(NODE) \
332 (((struct tree_baselink*) BASELINK_CHECK (NODE))->access_binfo)
333 /* For a type-conversion operator, the BASELINK_OPTYPE indicates the type
334 to which the conversion should occur. This value is important if
335 the BASELINK_FUNCTIONS include a template conversion operator --
336 the BASELINK_OPTYPE can be used to determine what type the user
338 #define BASELINK_OPTYPE(NODE) \
339 (TREE_CHAIN (BASELINK_CHECK (NODE)))
341 struct tree_baselink GTY(())
343 struct tree_common common;
349 #define WRAPPER_ZC(NODE) (((struct tree_wrapper*)WRAPPER_CHECK (NODE))->z_c)
351 struct tree_wrapper GTY(())
353 struct tree_common common;
354 struct z_candidate *z_c;
357 /* The different kinds of ids that we ecounter. */
359 typedef enum cp_id_kind
361 /* Not an id at all. */
363 /* An unqualified-id that is not a template-id. */
364 CP_ID_KIND_UNQUALIFIED,
365 /* An unqualified-id that is a dependent name. */
366 CP_ID_KIND_UNQUALIFIED_DEPENDENT,
367 /* An unqualified template-id. */
368 CP_ID_KIND_TEMPLATE_ID,
369 /* A qualified-id. */
373 /* Macros for access to language-specific slots in an identifier. */
375 #define IDENTIFIER_NAMESPACE_BINDINGS(NODE) \
376 (LANG_IDENTIFIER_CAST (NODE)->namespace_bindings)
377 #define IDENTIFIER_TEMPLATE(NODE) \
378 (LANG_IDENTIFIER_CAST (NODE)->class_template_info)
380 /* The IDENTIFIER_BINDING is the innermost cxx_binding for the
381 identifier. It's PREVIOUS is the next outermost binding. Each
382 VALUE field is a DECL for the associated declaration. Thus,
383 name lookup consists simply of pulling off the node at the front
384 of the list (modulo oddities for looking up the names of types,
385 and such.) You can use SCOPE field to determine the scope
386 that bound the name. */
387 #define IDENTIFIER_BINDING(NODE) \
388 (LANG_IDENTIFIER_CAST (NODE)->bindings)
390 /* The IDENTIFIER_VALUE is the value of the IDENTIFIER_BINDING, or
391 NULL_TREE if there is no binding. */
392 #define IDENTIFIER_VALUE(NODE) \
393 (IDENTIFIER_BINDING (NODE) ? IDENTIFIER_BINDING (NODE)->value : NULL)
395 /* If IDENTIFIER_CLASS_VALUE is set, then NODE is bound in the current
396 class, and IDENTIFIER_CLASS_VALUE is the value binding. This is
397 just a pointer to the VALUE field of one of the bindings in the
398 IDENTIFIER_BINDINGs list, so any time that this is non-NULL so is
399 IDENTIFIER_BINDING. */
400 #define IDENTIFIER_CLASS_VALUE(NODE) \
401 (LANG_IDENTIFIER_CAST (NODE)->class_value)
403 /* TREE_TYPE only indicates on local and class scope the current
404 type. For namespace scope, the presence of a type in any namespace
405 is indicated with global_type_node, and the real type behind must
406 be found through lookup. */
407 #define IDENTIFIER_TYPE_VALUE(NODE) identifier_type_value (NODE)
408 #define REAL_IDENTIFIER_TYPE_VALUE(NODE) TREE_TYPE (NODE)
409 #define SET_IDENTIFIER_TYPE_VALUE(NODE,TYPE) (TREE_TYPE (NODE) = (TYPE))
410 #define IDENTIFIER_HAS_TYPE_VALUE(NODE) (IDENTIFIER_TYPE_VALUE (NODE) ? 1 : 0)
412 #define IDENTIFIER_LABEL_VALUE(NODE) \
413 (LANG_IDENTIFIER_CAST (NODE)->label_value)
414 #define SET_IDENTIFIER_LABEL_VALUE(NODE, VALUE) \
415 IDENTIFIER_LABEL_VALUE (NODE) = (VALUE)
417 #define IDENTIFIER_IMPLICIT_DECL(NODE) \
418 (LANG_IDENTIFIER_CAST (NODE)->implicit_decl)
419 #define SET_IDENTIFIER_IMPLICIT_DECL(NODE, VALUE) \
420 IDENTIFIER_IMPLICIT_DECL (NODE) = (VALUE)
422 #define IDENTIFIER_ERROR_LOCUS(NODE) \
423 (LANG_IDENTIFIER_CAST (NODE)->error_locus)
424 #define SET_IDENTIFIER_ERROR_LOCUS(NODE, VALUE) \
425 IDENTIFIER_ERROR_LOCUS (NODE) = (VALUE)
427 /* Nonzero if this identifier is used as a virtual function name somewhere
428 (optimizes searches). */
429 #define IDENTIFIER_VIRTUAL_P(NODE) TREE_LANG_FLAG_1 (NODE)
431 /* Nonzero if this identifier is the prefix for a mangled C++ operator
433 #define IDENTIFIER_OPNAME_P(NODE) TREE_LANG_FLAG_2 (NODE)
435 /* Nonzero if this identifier is the name of a type-conversion
437 #define IDENTIFIER_TYPENAME_P(NODE) \
438 TREE_LANG_FLAG_4 (NODE)
440 /* Nonzero if this identifier is the name of a constructor or
442 #define IDENTIFIER_CTOR_OR_DTOR_P(NODE) \
443 TREE_LANG_FLAG_3 (NODE)
445 /* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */
446 #define C_TYPE_FIELDS_READONLY(TYPE) \
447 (LANG_TYPE_CLASS_CHECK (TYPE)->fields_readonly)
449 /* Store a value in that field. */
450 #define C_SET_EXP_ORIGINAL_CODE(EXP, CODE) \
451 (TREE_COMPLEXITY (EXP) = (int)(CODE))
453 /* The tokens stored in the default argument. */
455 #define DEFARG_TOKENS(NODE) \
456 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->tokens)
458 struct tree_default_arg GTY (())
460 struct tree_common common;
461 struct cp_token_cache *tokens;
464 enum cp_tree_node_structure_enum {
477 /* The resulting tree type. */
478 union lang_tree_node GTY((desc ("cp_tree_node_structure (&%h)"),
479 chain_next ("(union lang_tree_node *)TREE_CHAIN (&%h.generic)")))
481 union tree_node GTY ((tag ("TS_CP_GENERIC"),
482 desc ("tree_node_structure (&%h)"))) generic;
483 struct template_parm_index_s GTY ((tag ("TS_CP_TPI"))) tpi;
484 struct ptrmem_cst GTY ((tag ("TS_CP_PTRMEM"))) ptrmem;
485 struct tree_overload GTY ((tag ("TS_CP_OVERLOAD"))) overload;
486 struct tree_baselink GTY ((tag ("TS_CP_BASELINK"))) baselink;
487 struct tree_wrapper GTY ((tag ("TS_CP_WRAPPER"))) wrapper;
488 struct tree_default_arg GTY ((tag ("TS_CP_DEFAULT_ARG"))) default_arg;
489 struct lang_identifier GTY ((tag ("TS_CP_IDENTIFIER"))) identifier;
496 CPTI_JAVA_SHORT_TYPE,
499 CPTI_JAVA_FLOAT_TYPE,
500 CPTI_JAVA_DOUBLE_TYPE,
502 CPTI_JAVA_BOOLEAN_TYPE,
505 CPTI_VTABLE_ENTRY_TYPE,
507 CPTI_VTABLE_INDEX_TYPE,
517 CPTI_CLASS_DESC_TYPE,
518 CPTI_SI_CLASS_DESC_TYPE,
519 CPTI_VMI_CLASS_DESC_TYPE,
533 CPTI_TYPE_INFO_PTR_TYPE,
534 CPTI_TYPE_INFO_REF_TYPE,
536 CPTI_GLOBAL_DELETE_FNDECL,
539 CPTI_CTOR_IDENTIFIER,
540 CPTI_COMPLETE_CTOR_IDENTIFIER,
541 CPTI_BASE_CTOR_IDENTIFIER,
542 CPTI_DTOR_IDENTIFIER,
543 CPTI_COMPLETE_DTOR_IDENTIFIER,
544 CPTI_BASE_DTOR_IDENTIFIER,
545 CPTI_DELETING_DTOR_IDENTIFIER,
546 CPTI_DELTA_IDENTIFIER,
547 CPTI_IN_CHARGE_IDENTIFIER,
548 CPTI_VTT_PARM_IDENTIFIER,
549 CPTI_NELTS_IDENTIFIER,
550 CPTI_THIS_IDENTIFIER,
552 CPTI_VPTR_IDENTIFIER,
556 CPTI_LANG_NAME_CPLUSPLUS,
559 CPTI_EMPTY_EXCEPT_SPEC,
563 CPTI_CALL_UNEXPECTED,
573 extern GTY(()) tree cp_global_trees[CPTI_MAX];
575 #define java_byte_type_node cp_global_trees[CPTI_JAVA_BYTE_TYPE]
576 #define java_short_type_node cp_global_trees[CPTI_JAVA_SHORT_TYPE]
577 #define java_int_type_node cp_global_trees[CPTI_JAVA_INT_TYPE]
578 #define java_long_type_node cp_global_trees[CPTI_JAVA_LONG_TYPE]
579 #define java_float_type_node cp_global_trees[CPTI_JAVA_FLOAT_TYPE]
580 #define java_double_type_node cp_global_trees[CPTI_JAVA_DOUBLE_TYPE]
581 #define java_char_type_node cp_global_trees[CPTI_JAVA_CHAR_TYPE]
582 #define java_boolean_type_node cp_global_trees[CPTI_JAVA_BOOLEAN_TYPE]
584 #define wchar_decl_node cp_global_trees[CPTI_WCHAR_DECL]
585 #define vtable_entry_type cp_global_trees[CPTI_VTABLE_ENTRY_TYPE]
586 /* The type used to represent an offset by which to adjust the `this'
587 pointer in pointer-to-member types. */
588 #define delta_type_node cp_global_trees[CPTI_DELTA_TYPE]
589 /* The type used to represent an index into the vtable. */
590 #define vtable_index_type cp_global_trees[CPTI_VTABLE_INDEX_TYPE]
592 #define ti_desc_type_node cp_global_trees[CPTI_TI_DESC_TYPE]
593 #define bltn_desc_type_node cp_global_trees[CPTI_BLTN_DESC_TYPE]
594 #define ptr_desc_type_node cp_global_trees[CPTI_PTR_DESC_TYPE]
595 #define ary_desc_type_node cp_global_trees[CPTI_ARY_DESC_TYPE]
596 #define func_desc_type_node cp_global_trees[CPTI_FUNC_DESC_TYPE]
597 #define enum_desc_type_node cp_global_trees[CPTI_ENUM_DESC_TYPE]
598 #define class_desc_type_node cp_global_trees[CPTI_CLASS_DESC_TYPE]
599 #define si_class_desc_type_node cp_global_trees[CPTI_SI_CLASS_DESC_TYPE]
600 #define vmi_class_desc_type_node cp_global_trees[CPTI_VMI_CLASS_DESC_TYPE]
601 #define ptm_desc_type_node cp_global_trees[CPTI_PTM_DESC_TYPE]
602 #define base_desc_type_node cp_global_trees[CPTI_BASE_DESC_TYPE]
604 #define class_type_node cp_global_trees[CPTI_CLASS_TYPE]
605 #define record_type_node cp_global_trees[CPTI_RECORD_TYPE]
606 #define union_type_node cp_global_trees[CPTI_UNION_TYPE]
607 #define enum_type_node cp_global_trees[CPTI_ENUM_TYPE]
608 #define unknown_type_node cp_global_trees[CPTI_UNKNOWN_TYPE]
609 #define vtbl_type_node cp_global_trees[CPTI_VTBL_TYPE]
610 #define vtbl_ptr_type_node cp_global_trees[CPTI_VTBL_PTR_TYPE]
611 #define std_node cp_global_trees[CPTI_STD]
612 #define abi_node cp_global_trees[CPTI_ABI]
613 #define type_info_type_node cp_global_trees[CPTI_TYPE_INFO_TYPE]
614 #define type_info_ptr_type cp_global_trees[CPTI_TYPE_INFO_PTR_TYPE]
615 #define type_info_ref_type cp_global_trees[CPTI_TYPE_INFO_REF_TYPE]
616 #define abort_fndecl cp_global_trees[CPTI_ABORT_FNDECL]
617 #define global_delete_fndecl cp_global_trees[CPTI_GLOBAL_DELETE_FNDECL]
618 #define current_aggr cp_global_trees[CPTI_AGGR_TAG]
620 /* We cache these tree nodes so as to call get_identifier less
623 /* The name of a constructor that takes an in-charge parameter to
624 decide whether or not to construct virtual base classes. */
625 #define ctor_identifier cp_global_trees[CPTI_CTOR_IDENTIFIER]
626 /* The name of a constructor that constructs virtual base classes. */
627 #define complete_ctor_identifier cp_global_trees[CPTI_COMPLETE_CTOR_IDENTIFIER]
628 /* The name of a constructor that does not construct virtual base classes. */
629 #define base_ctor_identifier cp_global_trees[CPTI_BASE_CTOR_IDENTIFIER]
630 /* The name of a destructor that takes an in-charge parameter to
631 decide whether or not to destroy virtual base classes and whether
632 or not to delete the object. */
633 #define dtor_identifier cp_global_trees[CPTI_DTOR_IDENTIFIER]
634 /* The name of a destructor that destroys virtual base classes. */
635 #define complete_dtor_identifier cp_global_trees[CPTI_COMPLETE_DTOR_IDENTIFIER]
636 /* The name of a destructor that does not destroy virtual base
638 #define base_dtor_identifier cp_global_trees[CPTI_BASE_DTOR_IDENTIFIER]
639 /* The name of a destructor that destroys virtual base classes, and
640 then deletes the entire object. */
641 #define deleting_dtor_identifier cp_global_trees[CPTI_DELETING_DTOR_IDENTIFIER]
642 #define delta_identifier cp_global_trees[CPTI_DELTA_IDENTIFIER]
643 #define in_charge_identifier cp_global_trees[CPTI_IN_CHARGE_IDENTIFIER]
644 /* The name of the parameter that contains a pointer to the VTT to use
645 for this subobject constructor or destructor. */
646 #define vtt_parm_identifier cp_global_trees[CPTI_VTT_PARM_IDENTIFIER]
647 #define nelts_identifier cp_global_trees[CPTI_NELTS_IDENTIFIER]
648 #define this_identifier cp_global_trees[CPTI_THIS_IDENTIFIER]
649 #define pfn_identifier cp_global_trees[CPTI_PFN_IDENTIFIER]
650 #define vptr_identifier cp_global_trees[CPTI_VPTR_IDENTIFIER]
651 /* The name of the std namespace. */
652 #define std_identifier cp_global_trees[CPTI_STD_IDENTIFIER]
653 #define lang_name_c cp_global_trees[CPTI_LANG_NAME_C]
654 #define lang_name_cplusplus cp_global_trees[CPTI_LANG_NAME_CPLUSPLUS]
655 #define lang_name_java cp_global_trees[CPTI_LANG_NAME_JAVA]
657 /* Exception specifier used for throw(). */
658 #define empty_except_spec cp_global_trees[CPTI_EMPTY_EXCEPT_SPEC]
660 /* The node for `__null'. */
661 #define null_node cp_global_trees[CPTI_NULL]
663 /* If non-NULL, a POINTER_TYPE equivalent to (java::lang::Class*). */
664 #define jclass_node cp_global_trees[CPTI_JCLASS]
666 /* The declaration for `std::terminate'. */
667 #define terminate_node cp_global_trees[CPTI_TERMINATE]
669 /* The declaration for "__cxa_call_unexpected". */
670 #define call_unexpected_node cp_global_trees[CPTI_CALL_UNEXPECTED]
672 /* A pointer to `std::atexit'. */
673 #define atexit_node cp_global_trees[CPTI_ATEXIT]
675 /* A pointer to `__dso_handle'. */
676 #define dso_handle_node cp_global_trees[CPTI_DSO_HANDLE]
678 /* The declaration of the dynamic_cast runtime. */
679 #define dynamic_cast_node cp_global_trees[CPTI_DCAST]
681 /* The type of a destructor. */
682 #define cleanup_type cp_global_trees[CPTI_CLEANUP_TYPE]
684 /* The type of the vtt parameter passed to subobject constructors and
686 #define vtt_parm_type cp_global_trees[CPTI_VTT_PARM_TYPE]
688 /* A TREE_LIST of the dynamic classes whose vtables may have to be
689 emitted in this translation unit. */
691 #define keyed_classes cp_global_trees[CPTI_KEYED_CLASSES]
693 /* Node to indicate default access. This must be distinct from the
694 access nodes in tree.h. */
696 #define access_default_node null_node
700 struct saved_scope GTY(())
702 cxx_saved_binding *old_bindings;
707 tree access_specifier;
709 varray_type lang_base;
712 tree x_previous_class_type;
713 tree x_previous_class_values;
717 HOST_WIDE_INT x_processing_template_decl;
718 int x_processing_specialization;
719 bool x_processing_explicit_instantiation;
720 int need_pop_function_context;
722 struct stmt_tree_s x_stmt_tree;
724 struct cp_binding_level *class_bindings;
725 struct cp_binding_level *bindings;
727 struct saved_scope *prev;
730 /* The current open namespace. */
732 #define current_namespace scope_chain->old_namespace
734 /* The stack for namespaces of current declarations. */
736 #define decl_namespace_list scope_chain->decl_ns_list
738 /* IDENTIFIER_NODE: name of current class */
740 #define current_class_name scope_chain->class_name
742 /* _TYPE: the type of the current class */
744 #define current_class_type scope_chain->class_type
746 /* When parsing a class definition, the access specifier most recently
747 given by the user, or, if no access specifier was given, the
748 default value appropriate for the kind of class (i.e., struct,
751 #define current_access_specifier scope_chain->access_specifier
753 /* Pointer to the top of the language name stack. */
755 #define current_lang_base scope_chain->lang_base
756 #define current_lang_name scope_chain->lang_name
758 /* Parsing a function declarator leaves a list of parameter names
759 or a chain or parameter decls here. */
761 #define current_template_parms scope_chain->template_parms
763 #define processing_template_decl scope_chain->x_processing_template_decl
764 #define processing_specialization scope_chain->x_processing_specialization
765 #define processing_explicit_instantiation scope_chain->x_processing_explicit_instantiation
767 /* _TYPE: the previous type that was a class */
769 #define previous_class_type scope_chain->x_previous_class_type
771 /* This is a copy of the class_shadowed list of the previous class
772 binding contour when at global scope. It's used to reset
773 IDENTIFIER_CLASS_VALUEs when entering another class scope (i.e. a
776 #define previous_class_values scope_chain->x_previous_class_values
778 /* A list of private types mentioned, for deferred access checking. */
780 extern GTY(()) struct saved_scope *scope_chain;
782 /* Global state pertinent to the current function. */
784 struct language_function GTY(())
786 struct c_language_function base;
789 tree x_current_class_ptr;
790 tree x_current_class_ref;
791 tree x_eh_spec_block;
792 tree x_in_charge_parm;
798 int returns_abnormally;
799 int in_function_try_handler;
800 int in_base_initializer;
802 /* True if this function can throw an exception. */
805 struct named_label_use_list *x_named_label_uses;
806 struct named_label_list *x_named_labels;
807 struct cp_binding_level *bindings;
808 varray_type x_local_names;
810 const char *cannot_inline;
813 /* The current C++-specific per-function global variables. */
815 #define cp_function_chain (cfun->language)
817 /* In a destructor, the point at which all derived class destroying
818 has been done, just before any base class destroying will be done. */
820 #define dtor_label cp_function_chain->x_dtor_label
822 /* When we're processing a member function, current_class_ptr is the
823 PARM_DECL for the `this' pointer. The current_class_ref is an
824 expression for `*this'. */
826 #define current_class_ptr \
827 (cfun ? cp_function_chain->x_current_class_ptr : NULL_TREE)
828 #define current_class_ref \
829 (cfun ? cp_function_chain->x_current_class_ref : NULL_TREE)
831 /* The EH_SPEC_BLOCK for the exception-specifiers for the current
834 #define current_eh_spec_block cp_function_chain->x_eh_spec_block
836 /* The `__in_chrg' parameter for the current function. Only used for
837 constructors and destructors. */
839 #define current_in_charge_parm cp_function_chain->x_in_charge_parm
841 /* The `__vtt_parm' parameter for the current function. Only used for
842 constructors and destructors. */
844 #define current_vtt_parm cp_function_chain->x_vtt_parm
846 /* Set to 0 at beginning of a function definition, set to 1 if
847 a return statement that specifies a return value is seen. */
849 #define current_function_returns_value cp_function_chain->returns_value
851 /* Set to 0 at beginning of a function definition, set to 1 if
852 a return statement with no argument is seen. */
854 #define current_function_returns_null cp_function_chain->returns_null
856 /* Set to 0 at beginning of a function definition, set to 1 if
857 a call to a noreturn function is seen. */
859 #define current_function_returns_abnormally \
860 cp_function_chain->returns_abnormally
862 /* Nonzero if we are processing a base initializer. Zero elsewhere. */
863 #define in_base_initializer cp_function_chain->in_base_initializer
865 #define in_function_try_handler cp_function_chain->in_function_try_handler
867 /* Expression always returned from function, or error_mark_node
868 otherwise, for use by the automatic named return value optimization. */
870 #define current_function_return_value \
871 (cp_function_chain->x_return_value)
873 #define ansi_opname(CODE) \
874 (operator_name_info[(int) (CODE)].identifier)
875 #define ansi_assopname(CODE) \
876 (assignment_operator_name_info[(int) (CODE)].identifier)
878 /* True if NODE is an erroneous expression. */
880 #define error_operand_p(NODE) \
881 ((NODE) == error_mark_node \
882 || ((NODE) && TREE_TYPE ((NODE)) == error_mark_node))
884 /* INTERFACE_ONLY nonzero means that we are in an "interface"
885 section of the compiler. INTERFACE_UNKNOWN nonzero means
886 we cannot trust the value of INTERFACE_ONLY. If INTERFACE_UNKNOWN
887 is zero and INTERFACE_ONLY is zero, it means that we are responsible
888 for exporting definitions that others might need. */
889 extern int interface_only, interface_unknown;
891 /* C++ language-specific tree codes. */
892 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) SYM,
893 enum cplus_tree_code {
894 CP_DUMMY_TREE_CODE = LAST_C_TREE_CODE,
895 #include "cp-tree.def"
900 #define cp_stmt_codes \
901 CTOR_INITIALIZER, TRY_BLOCK, HANDLER, \
902 EH_SPEC_BLOCK, USING_STMT, TAG_DEFN
904 enum languages { lang_c, lang_cplusplus, lang_java };
906 /* Macros to make error reporting functions' lives easier. */
907 #define TYPE_IDENTIFIER(NODE) (DECL_NAME (TYPE_NAME (NODE)))
908 #define TYPE_LINKAGE_IDENTIFIER(NODE) \
909 (TYPE_IDENTIFIER (TYPE_MAIN_VARIANT (NODE)))
910 #define TYPE_NAME_STRING(NODE) (IDENTIFIER_POINTER (TYPE_IDENTIFIER (NODE)))
911 #define TYPE_NAME_LENGTH(NODE) (IDENTIFIER_LENGTH (TYPE_IDENTIFIER (NODE)))
913 #define TYPE_ASSEMBLER_NAME_STRING(NODE) \
914 (IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (TYPE_NAME (NODE))))
915 #define TYPE_ASSEMBLER_NAME_LENGTH(NODE) \
916 (IDENTIFIER_LENGTH (DECL_ASSEMBLER_NAME (TYPE_NAME (NODE))))
918 /* Nonzero if NODE has no name for linkage purposes. */
919 #define TYPE_ANONYMOUS_P(NODE) \
920 (TAGGED_TYPE_P (NODE) && ANON_AGGRNAME_P (TYPE_LINKAGE_IDENTIFIER (NODE)))
922 /* The _DECL for this _TYPE. */
923 #define TYPE_MAIN_DECL(NODE) (TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE)))
925 /* Nonzero if T is a class (or struct or union) type. Also nonzero
926 for template type parameters, typename types, and instantiated
927 template template parameters. Despite its name,
928 this macro has nothing to do with the definition of aggregate given
929 in the standard. Think of this macro as MAYBE_CLASS_TYPE_P. */
930 #define IS_AGGR_TYPE(T) \
931 (TREE_CODE (T) == TEMPLATE_TYPE_PARM \
932 || TREE_CODE (T) == TYPENAME_TYPE \
933 || TREE_CODE (T) == TYPEOF_TYPE \
934 || TREE_CODE (T) == BOUND_TEMPLATE_TEMPLATE_PARM \
935 || TYPE_LANG_FLAG_5 (T))
937 /* Set IS_AGGR_TYPE for T to VAL. T must be a class, struct, or
939 #define SET_IS_AGGR_TYPE(T, VAL) \
940 (TYPE_LANG_FLAG_5 (T) = (VAL))
942 /* Nonzero if T is a class type. Zero for template type parameters,
943 typename types, and so forth. */
944 #define CLASS_TYPE_P(T) \
945 (IS_AGGR_TYPE_CODE (TREE_CODE (T)) && IS_AGGR_TYPE (T))
947 #define IS_AGGR_TYPE_CODE(T) ((T) == RECORD_TYPE || (T) == UNION_TYPE)
948 #define TAGGED_TYPE_P(T) \
949 (CLASS_TYPE_P (T) || TREE_CODE (T) == ENUMERAL_TYPE)
950 #define IS_OVERLOAD_TYPE(T) TAGGED_TYPE_P (T)
952 /* True if this a "Java" type, defined in 'extern "Java"'. */
953 #define TYPE_FOR_JAVA(NODE) TYPE_LANG_FLAG_3 (NODE)
955 /* True if this type is dependent. This predicate is only valid if
956 TYPE_DEPENDENT_P_VALID is true. */
957 #define TYPE_DEPENDENT_P(NODE) TYPE_LANG_FLAG_0 (NODE)
959 /* True if dependent_type_p has been called for this type, with the
960 result that TYPE_DEPENDENT_P is valid. */
961 #define TYPE_DEPENDENT_P_VALID(NODE) TYPE_LANG_FLAG_6(NODE)
963 /* Nonzero if this type is const-qualified. */
964 #define CP_TYPE_CONST_P(NODE) \
965 ((cp_type_quals (NODE) & TYPE_QUAL_CONST) != 0)
967 /* Nonzero if this type is volatile-qualified. */
968 #define CP_TYPE_VOLATILE_P(NODE) \
969 ((cp_type_quals (NODE) & TYPE_QUAL_VOLATILE) != 0)
971 /* Nonzero if this type is restrict-qualified. */
972 #define CP_TYPE_RESTRICT_P(NODE) \
973 ((cp_type_quals (NODE) & TYPE_QUAL_RESTRICT) != 0)
975 /* Nonzero if this type is const-qualified, but not
976 volatile-qualified. Other qualifiers are ignored. This macro is
977 used to test whether or not it is OK to bind an rvalue to a
979 #define CP_TYPE_CONST_NON_VOLATILE_P(NODE) \
980 ((cp_type_quals (NODE) & (TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE)) \
983 #define FUNCTION_ARG_CHAIN(NODE) \
984 TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (NODE)))
986 /* Given a FUNCTION_DECL, returns the first TREE_LIST out of TYPE_ARG_TYPES
987 which refers to a user-written parameter. */
988 #define FUNCTION_FIRST_USER_PARMTYPE(NODE) \
989 skip_artificial_parms_for ((NODE), TYPE_ARG_TYPES (TREE_TYPE (NODE)))
991 /* Similarly, but for DECL_ARGUMENTS. */
992 #define FUNCTION_FIRST_USER_PARM(NODE) \
993 skip_artificial_parms_for ((NODE), DECL_ARGUMENTS (NODE))
995 #define PROMOTES_TO_AGGR_TYPE(NODE, CODE) \
996 (((CODE) == TREE_CODE (NODE) \
997 && IS_AGGR_TYPE (TREE_TYPE (NODE))) \
998 || IS_AGGR_TYPE (NODE))
1000 /* Nonzero iff TYPE is derived from PARENT. Ignores accessibility and
1001 ambiguity issues. */
1002 #define DERIVED_FROM_P(PARENT, TYPE) \
1003 (lookup_base ((TYPE), (PARENT), ba_any, NULL) != NULL_TREE)
1004 /* Nonzero iff TYPE is uniquely derived from PARENT. Ignores
1006 #define UNIQUELY_DERIVED_FROM_P(PARENT, TYPE) \
1007 (lookup_base ((TYPE), (PARENT), ba_ignore | ba_quiet, NULL) != NULL_TREE)
1008 /* Nonzero iff TYPE is accessible in the current scope and uniquely
1009 derived from PARENT. */
1010 #define ACCESSIBLY_UNIQUELY_DERIVED_P(PARENT, TYPE) \
1011 (lookup_base ((TYPE), (PARENT), ba_check | ba_quiet, NULL) != NULL_TREE)
1012 /* Nonzero iff TYPE is publicly & uniquely derived from PARENT. */
1013 #define PUBLICLY_UNIQUELY_DERIVED_P(PARENT, TYPE) \
1014 (lookup_base ((TYPE), (PARENT), ba_not_special | ba_quiet, NULL) \
1017 /* This is a few header flags for 'struct lang_type'. Actually,
1018 all but the first are used only for lang_type_class; they
1019 are put in this structure to save space. */
1020 __extension__ struct lang_type_header GTY(())
1022 CHAR_BITFIELD is_lang_type_class : 1;
1024 CHAR_BITFIELD has_type_conversion : 1;
1025 CHAR_BITFIELD has_init_ref : 1;
1026 CHAR_BITFIELD has_default_ctor : 1;
1027 CHAR_BITFIELD uses_multiple_inheritance : 1;
1028 CHAR_BITFIELD const_needs_init : 1;
1029 CHAR_BITFIELD ref_needs_init : 1;
1030 CHAR_BITFIELD has_const_assign_ref : 1;
1033 /* This structure provides additional information above and beyond
1034 what is provide in the ordinary tree_type. In the past, we used it
1035 for the types of class types, template parameters types, typename
1036 types, and so forth. However, there can be many (tens to hundreds
1037 of thousands) of template parameter types in a compilation, and
1038 there's no need for this additional information in that case.
1039 Therefore, we now use this data structure only for class types.
1041 In the past, it was thought that there would be relatively few
1042 class types. However, in the presence of heavy use of templates,
1043 many (i.e., thousands) of classes can easily be generated.
1044 Therefore, we should endeavor to keep the size of this structure to
1046 struct lang_type_class GTY(())
1048 struct lang_type_header h;
1050 unsigned char align;
1052 unsigned has_mutable : 1;
1053 unsigned com_interface : 1;
1054 unsigned non_pod_class : 1;
1055 unsigned nearly_empty_p : 1;
1056 unsigned user_align : 1;
1057 unsigned has_assign_ref : 1;
1058 unsigned has_new : 1;
1059 unsigned has_array_new : 1;
1061 unsigned gets_delete : 2;
1062 unsigned interface_only : 1;
1063 unsigned interface_unknown : 1;
1064 unsigned contains_empty_class_p : 1;
1065 unsigned anon_aggr : 1;
1066 unsigned non_zero_init : 1;
1067 unsigned empty_p : 1;
1070 unsigned vec_new_uses_cookie : 1;
1071 unsigned declared_class : 1;
1073 unsigned being_defined : 1;
1074 unsigned redefined : 1;
1075 unsigned debug_requested : 1;
1076 unsigned use_template : 2;
1077 unsigned fields_readonly : 1;
1078 unsigned ptrmemfunc_flag : 1;
1079 unsigned was_anonymous : 1;
1081 unsigned has_real_assign_ref : 1;
1082 unsigned has_const_init_ref : 1;
1083 unsigned has_complex_init_ref : 1;
1084 unsigned has_complex_assign_ref : 1;
1085 unsigned has_abstract_assign_ref : 1;
1086 unsigned non_aggregate : 1;
1087 unsigned java_interface : 1;
1089 /* When adding a flag here, consider whether or not it ought to
1090 apply to a template instance if it applies to the template. If
1091 so, make sure to copy it in instantiate_class_template! */
1093 /* There are some bits left to fill out a 32-bit word. Keep track
1094 of this by updating the size of this bitfield whenever you add or
1104 binding_table nested_udts;
1107 tree friend_classes;
1108 tree GTY ((reorder ("resort_type_method_vec"))) methods;
1112 tree befriending_classes;
1115 struct lang_type_ptrmem GTY(())
1117 struct lang_type_header h;
1121 struct lang_type GTY(())
1125 struct lang_type_header GTY((tag ("2"))) h;
1126 struct lang_type_class GTY((tag ("1"))) c;
1127 struct lang_type_ptrmem GTY((tag ("0"))) ptrmem;
1128 } GTY((desc ("%h.h.is_lang_type_class"))) u;
1131 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1133 #define LANG_TYPE_CLASS_CHECK(NODE) __extension__ \
1134 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1135 if (! lt->u.h.is_lang_type_class) \
1136 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1139 #define LANG_TYPE_PTRMEM_CHECK(NODE) __extension__ \
1140 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1141 if (lt->u.h.is_lang_type_class) \
1142 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1147 #define LANG_TYPE_CLASS_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.c)
1148 #define LANG_TYPE_PTRMEM_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.ptrmem)
1150 #endif /* ENABLE_TREE_CHECKING */
1152 /* Indicates whether or not (and how) a template was expanded for this class.
1153 0=no information yet/non-template class
1154 1=implicit template instantiation
1155 2=explicit template specialization
1156 3=explicit template instantiation */
1157 #define CLASSTYPE_USE_TEMPLATE(NODE) \
1158 (LANG_TYPE_CLASS_CHECK (NODE)->use_template)
1160 /* Fields used for storing information before the class is defined.
1161 After the class is defined, these fields hold other information. */
1163 /* List of friends which were defined inline in this class definition. */
1164 #define CLASSTYPE_INLINE_FRIENDS(NODE) CLASSTYPE_PURE_VIRTUALS (NODE)
1166 /* Nonzero for _CLASSTYPE means that operator delete is defined. */
1167 #define TYPE_GETS_DELETE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->gets_delete)
1168 #define TYPE_GETS_REG_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 1)
1170 /* Nonzero if `new NODE[x]' should cause the allocation of extra
1171 storage to indicate how many array elements are in use. */
1172 #define TYPE_VEC_NEW_USES_COOKIE(NODE) \
1173 (CLASS_TYPE_P (NODE) \
1174 && LANG_TYPE_CLASS_CHECK (NODE)->vec_new_uses_cookie)
1176 /* Nonzero means that this _CLASSTYPE node defines ways of converting
1177 itself to other types. */
1178 #define TYPE_HAS_CONVERSION(NODE) \
1179 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_type_conversion)
1181 /* Nonzero means that this _CLASSTYPE node overloads operator=(X&). */
1182 #define TYPE_HAS_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_assign_ref)
1183 #define TYPE_HAS_CONST_ASSIGN_REF(NODE) \
1184 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_const_assign_ref)
1186 /* Nonzero means that this _CLASSTYPE node has an X(X&) constructor. */
1187 #define TYPE_HAS_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->h.has_init_ref)
1188 #define TYPE_HAS_CONST_INIT_REF(NODE) \
1189 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_init_ref)
1191 /* Nonzero if this class defines an overloaded operator new. (An
1192 operator new [] doesn't count.) */
1193 #define TYPE_HAS_NEW_OPERATOR(NODE) \
1194 (LANG_TYPE_CLASS_CHECK (NODE)->has_new)
1196 /* Nonzero if this class defines an overloaded operator new[]. */
1197 #define TYPE_HAS_ARRAY_NEW_OPERATOR(NODE) \
1198 (LANG_TYPE_CLASS_CHECK (NODE)->has_array_new)
1200 /* Nonzero means that this type is being defined. I.e., the left brace
1201 starting the definition of this type has been seen. */
1202 #define TYPE_BEING_DEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->being_defined)
1203 /* Nonzero means that this type has been redefined. In this case, if
1204 convenient, don't reprocess any methods that appear in its redefinition. */
1205 #define TYPE_REDEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->redefined)
1207 /* Nonzero means that this _CLASSTYPE (or one of its ancestors) uses
1208 multiple inheritance. If this is 0 for the root of a type
1209 hierarchy, then we can use more efficient search techniques. */
1210 #define TYPE_USES_MULTIPLE_INHERITANCE(NODE) \
1211 (LANG_TYPE_CLASS_CHECK (NODE)->h.uses_multiple_inheritance)
1213 /* Nonzero means that this _CLASSTYPE (or one of its ancestors) uses
1214 virtual base classes. If this is 0 for the root of a type
1215 hierarchy, then we can use more efficient search techniques. */
1216 #define TYPE_USES_VIRTUAL_BASECLASSES(NODE) (TREE_LANG_FLAG_3 (NODE))
1218 /* The member function with which the vtable will be emitted:
1219 the first noninline non-pure-virtual member function. NULL_TREE
1220 if there is no key function or if this is a class template */
1221 #define CLASSTYPE_KEY_METHOD(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->key_method)
1223 /* Vector member functions defined in this class. Each element is
1224 either a FUNCTION_DECL, a TEMPLATE_DECL, or an OVERLOAD. All
1225 functions with the same name end up in the same slot. The first
1226 two elements are for constructors, and destructors, respectively.
1227 All template conversion operators to innermost template dependent
1228 types are overloaded on the next slot, if they exist. Note, the
1229 names for these functions will not all be the same. The
1230 non-template conversion operators & templated conversions to
1231 non-innermost template types are next, followed by ordinary member
1232 functions. There may be empty entries at the end of the vector.
1233 The conversion operators are unsorted. The ordinary member
1234 functions are sorted, once the class is complete. */
1235 #define CLASSTYPE_METHOD_VEC(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->methods)
1237 /* For class templates, this is a TREE_LIST of all member data,
1238 functions, types, and friends in the order of declaration.
1239 The TREE_PURPOSE of each TREE_LIST is NULL_TREE for a friend,
1240 and the RECORD_TYPE for the class template otherwise. */
1241 #define CLASSTYPE_DECL_LIST(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->decl_list)
1243 /* The slot in the CLASSTYPE_METHOD_VEC where constructors go. */
1244 #define CLASSTYPE_CONSTRUCTOR_SLOT 0
1246 /* The slot in the CLASSTYPE_METHOD_VEC where destructors go. */
1247 #define CLASSTYPE_DESTRUCTOR_SLOT 1
1249 /* The first slot in the CLASSTYPE_METHOD_VEC where conversion
1250 operators can appear. */
1251 #define CLASSTYPE_FIRST_CONVERSION_SLOT 2
1253 /* A FUNCTION_DECL or OVERLOAD for the constructors for NODE. These
1254 are the constructors that take an in-charge parameter. */
1255 #define CLASSTYPE_CONSTRUCTORS(NODE) \
1256 (TREE_VEC_ELT (CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_CONSTRUCTOR_SLOT))
1258 /* A FUNCTION_DECL for the destructor for NODE. These are the
1259 destructors that take an in-charge parameter. */
1260 #define CLASSTYPE_DESTRUCTORS(NODE) \
1261 (TREE_VEC_ELT (CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_DESTRUCTOR_SLOT))
1263 /* Mark bits for depth-first and breath-first searches. */
1265 /* Get the value of the Nth mark bit. */
1266 #define CLASSTYPE_MARKED_N(NODE, N) \
1267 (((CLASS_TYPE_P (NODE) ? LANG_TYPE_CLASS_CHECK (NODE)->marks \
1268 : ((unsigned) TYPE_ALIAS_SET (NODE))) & (1 << (N))) != 0)
1270 /* Set the Nth mark bit. */
1271 #define SET_CLASSTYPE_MARKED_N(NODE, N) \
1272 (CLASS_TYPE_P (NODE) \
1273 ? (void) (LANG_TYPE_CLASS_CHECK (NODE)->marks |= (1 << (N))) \
1274 : (void) (TYPE_ALIAS_SET (NODE) |= (1 << (N))))
1276 /* Clear the Nth mark bit. */
1277 #define CLEAR_CLASSTYPE_MARKED_N(NODE, N) \
1278 (CLASS_TYPE_P (NODE) \
1279 ? (void) (LANG_TYPE_CLASS_CHECK (NODE)->marks &= ~(1 << (N))) \
1280 : (void) (TYPE_ALIAS_SET (NODE) &= ~(1 << (N))))
1282 /* Get the value of the mark bits. */
1283 #define CLASSTYPE_MARKED(NODE) CLASSTYPE_MARKED_N (NODE, 0)
1284 #define CLASSTYPE_MARKED2(NODE) CLASSTYPE_MARKED_N (NODE, 1)
1285 #define CLASSTYPE_MARKED3(NODE) CLASSTYPE_MARKED_N (NODE, 2)
1286 #define CLASSTYPE_MARKED4(NODE) CLASSTYPE_MARKED_N (NODE, 3)
1287 #define CLASSTYPE_MARKED5(NODE) CLASSTYPE_MARKED_N (NODE, 4)
1288 #define CLASSTYPE_MARKED6(NODE) CLASSTYPE_MARKED_N (NODE, 5)
1290 /* Macros to modify the above flags */
1291 #define SET_CLASSTYPE_MARKED(NODE) SET_CLASSTYPE_MARKED_N (NODE, 0)
1292 #define CLEAR_CLASSTYPE_MARKED(NODE) CLEAR_CLASSTYPE_MARKED_N (NODE, 0)
1293 #define SET_CLASSTYPE_MARKED2(NODE) SET_CLASSTYPE_MARKED_N (NODE, 1)
1294 #define CLEAR_CLASSTYPE_MARKED2(NODE) CLEAR_CLASSTYPE_MARKED_N (NODE, 1)
1295 #define SET_CLASSTYPE_MARKED3(NODE) SET_CLASSTYPE_MARKED_N (NODE, 2)
1296 #define CLEAR_CLASSTYPE_MARKED3(NODE) CLEAR_CLASSTYPE_MARKED_N (NODE, 2)
1297 #define SET_CLASSTYPE_MARKED4(NODE) SET_CLASSTYPE_MARKED_N (NODE, 3)
1298 #define CLEAR_CLASSTYPE_MARKED4(NODE) CLEAR_CLASSTYPE_MARKED_N (NODE, 3)
1299 #define SET_CLASSTYPE_MARKED5(NODE) SET_CLASSTYPE_MARKED_N (NODE, 4)
1300 #define CLEAR_CLASSTYPE_MARKED5(NODE) CLEAR_CLASSTYPE_MARKED_N (NODE, 4)
1301 #define SET_CLASSTYPE_MARKED6(NODE) SET_CLASSTYPE_MARKED_N (NODE, 5)
1302 #define CLEAR_CLASSTYPE_MARKED6(NODE) CLEAR_CLASSTYPE_MARKED_N (NODE, 5)
1304 /* A dictionary of the nested user-defined-types (class-types, or enums)
1305 found within this class. This table includes nested member class
1307 #define CLASSTYPE_NESTED_UTDS(NODE) \
1308 (LANG_TYPE_CLASS_CHECK (NODE)->nested_udts)
1310 /* Nonzero if NODE has a primary base class, i.e., a base class with
1311 which it shares the virtual function table pointer. */
1312 #define CLASSTYPE_HAS_PRIMARY_BASE_P(NODE) \
1313 (CLASSTYPE_PRIMARY_BINFO (NODE) != NULL_TREE)
1315 /* If non-NULL, this is the binfo for the primary base class, i.e.,
1316 the base class which contains the virtual function table pointer
1318 #define CLASSTYPE_PRIMARY_BINFO(NODE) \
1319 (LANG_TYPE_CLASS_CHECK (NODE)->primary_base)
1321 /* A chain of BINFOs for the direct and indirect virtual base classes
1322 that this type uses in a post-order depth-first left-to-right
1323 order. (In other words, these bases appear in the order that they
1324 should be initialized.) */
1325 #define CLASSTYPE_VBASECLASSES(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->vbases)
1327 /* Number of direct baseclasses of NODE. */
1328 #define CLASSTYPE_N_BASECLASSES(NODE) \
1329 (BINFO_N_BASETYPES (TYPE_BINFO (NODE)))
1331 /* The type corresponding to NODE when NODE is used as a base class,
1332 i.e., NODE without virtual base classes. */
1334 #define CLASSTYPE_AS_BASE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->as_base)
1336 /* These are the size and alignment of the type without its virtual
1337 base classes, for when we use this type as a base itself. */
1338 #define CLASSTYPE_SIZE(NODE) TYPE_SIZE (CLASSTYPE_AS_BASE (NODE))
1339 #define CLASSTYPE_SIZE_UNIT(NODE) TYPE_SIZE_UNIT (CLASSTYPE_AS_BASE (NODE))
1340 #define CLASSTYPE_ALIGN(NODE) TYPE_ALIGN (CLASSTYPE_AS_BASE (NODE))
1341 #define CLASSTYPE_USER_ALIGN(NODE) TYPE_USER_ALIGN (CLASSTYPE_AS_BASE (NODE))
1343 /* The alignment of NODE, without its virtual bases, in bytes. */
1344 #define CLASSTYPE_ALIGN_UNIT(NODE) \
1345 (CLASSTYPE_ALIGN (NODE) / BITS_PER_UNIT)
1347 /* True if this a Java interface type, declared with
1348 '__attribute__ ((java_interface))'. */
1349 #define TYPE_JAVA_INTERFACE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->java_interface)
1351 /* A cons list of virtual functions which cannot be inherited by
1352 derived classes. When deriving from this type, the derived
1353 class must provide its own definition for each of these functions. */
1354 #define CLASSTYPE_PURE_VIRTUALS(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->pure_virtuals)
1356 /* Nonzero means that this type has an X() constructor. */
1357 #define TYPE_HAS_DEFAULT_CONSTRUCTOR(NODE) \
1358 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_default_ctor)
1360 /* Nonzero means that this type contains a mutable member */
1361 #define CLASSTYPE_HAS_MUTABLE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_mutable)
1362 #define TYPE_HAS_MUTABLE_P(NODE) (cp_has_mutable_p (NODE))
1364 /* Nonzero means that this class type is a non-POD class. */
1365 #define CLASSTYPE_NON_POD_P(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->non_pod_class)
1367 /* Nonzero means that this class contains pod types whose default
1368 initialization is not a zero initialization (namely, pointers to
1370 #define CLASSTYPE_NON_ZERO_INIT_P(NODE) \
1371 (LANG_TYPE_CLASS_CHECK (NODE)->non_zero_init)
1373 /* Nonzero if this class is "empty" in the sense of the C++ ABI. */
1374 #define CLASSTYPE_EMPTY_P(NODE) \
1375 (LANG_TYPE_CLASS_CHECK (NODE)->empty_p)
1377 /* Nonzero if this class is "nearly empty", i.e., contains only a
1378 virtual function table pointer. */
1379 #define CLASSTYPE_NEARLY_EMPTY_P(NODE) \
1380 (LANG_TYPE_CLASS_CHECK (NODE)->nearly_empty_p)
1382 /* Nonzero if this class contains an empty subobject. */
1383 #define CLASSTYPE_CONTAINS_EMPTY_CLASS_P(NODE) \
1384 (LANG_TYPE_CLASS_CHECK (NODE)->contains_empty_class_p)
1386 /* A list of class types of which this type is a friend. The
1387 TREE_VALUE is normally a TYPE, but will be a TEMPLATE_DECL in the
1388 case of a template friend. */
1389 #define CLASSTYPE_FRIEND_CLASSES(NODE) \
1390 (LANG_TYPE_CLASS_CHECK (NODE)->friend_classes)
1392 /* A list of the classes which grant friendship to this class. */
1393 #define CLASSTYPE_BEFRIENDING_CLASSES(NODE) \
1394 (LANG_TYPE_CLASS_CHECK (NODE)->befriending_classes)
1396 /* Say whether this node was declared as a "class" or a "struct". */
1397 #define CLASSTYPE_DECLARED_CLASS(NODE) \
1398 (LANG_TYPE_CLASS_CHECK (NODE)->declared_class)
1400 /* Nonzero if this class has const members
1401 which have no specified initialization. */
1402 #define CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE) \
1403 (TYPE_LANG_SPECIFIC (NODE) \
1404 ? LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init : 0)
1405 #define SET_CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE, VALUE) \
1406 (LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init = (VALUE))
1408 /* Nonzero if this class has ref members
1409 which have no specified initialization. */
1410 #define CLASSTYPE_REF_FIELDS_NEED_INIT(NODE) \
1411 (TYPE_LANG_SPECIFIC (NODE) \
1412 ? LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init : 0)
1413 #define SET_CLASSTYPE_REF_FIELDS_NEED_INIT(NODE, VALUE) \
1414 (LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init = (VALUE))
1416 /* Nonzero if this class is included from a header file which employs
1417 `#pragma interface', and it is not included in its implementation file. */
1418 #define CLASSTYPE_INTERFACE_ONLY(NODE) \
1419 (LANG_TYPE_CLASS_CHECK (NODE)->interface_only)
1421 /* True if we have already determined whether or not vtables, VTTs,
1422 typeinfo, and other similar per-class data should be emitted in
1423 this translation unit. This flag does not indicate whether or not
1424 these items should be emitted; it only indicates that we know one
1425 way or the other. */
1426 #define CLASSTYPE_INTERFACE_KNOWN(NODE) \
1427 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown == 0)
1428 /* The opposite of CLASSTYPE_INTERFANCE_KNOWN. */
1429 #define CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1430 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown)
1432 #define SET_CLASSTYPE_INTERFACE_UNKNOWN_X(NODE,X) \
1433 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = !!(X))
1434 #define SET_CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1435 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 1)
1436 #define SET_CLASSTYPE_INTERFACE_KNOWN(NODE) \
1437 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 0)
1439 /* Nonzero if a _DECL node requires us to output debug info for this class. */
1440 #define CLASSTYPE_DEBUG_REQUESTED(NODE) \
1441 (LANG_TYPE_CLASS_CHECK (NODE)->debug_requested)
1443 /* Additional macros for inheritance information. */
1445 /* The BINFO_INHERITANCE_CHAIN is used opposite to the description in
1446 gcc/tree.h. In particular if D is non-virtually derived from B
1447 then the BINFO for B (in D) will have a BINFO_INHERITANCE_CHAIN
1448 pointing to D. If D is virtually derived, its
1449 BINFO_INHERITANCE_CHAIN will point to the most derived binfo. In
1450 tree.h, this pointer is described as pointing in other
1451 direction. The binfos of virtual bases are shared. */
1453 /* Nonzero means marked by DFS or BFS search. */
1454 #define BINFO_MARKED(NODE) TREE_LANG_FLAG_0 (NODE)
1456 /* Nonzero means that this class is on a path leading to a new vtable. */
1457 #define BINFO_VTABLE_PATH_MARKED(NODE) TREE_LANG_FLAG_3 (NODE)
1459 /* Nonzero means B (a BINFO) has its own vtable. Any copies will not
1460 have this flag set. */
1461 #define BINFO_NEW_VTABLE_MARKED(B) (TREE_LANG_FLAG_4 (B))
1463 /* Any subobject that needs a new vtable must have a vptr and must not
1464 be a non-virtual primary base (since it would then use the vtable from a
1465 derived class and never become non-primary.) */
1466 #define SET_BINFO_NEW_VTABLE_MARKED(B) \
1467 (BINFO_NEW_VTABLE_MARKED (B) = 1, \
1468 my_friendly_assert (!BINFO_PRIMARY_P (B) \
1469 || TREE_VIA_VIRTUAL (B), 20000517), \
1470 my_friendly_assert (CLASSTYPE_VFIELDS (BINFO_TYPE (B)) != NULL_TREE, \
1473 /* Nonzero means this class has done dfs_pushdecls. */
1474 #define BINFO_PUSHDECLS_MARKED(NODE) BINFO_VTABLE_PATH_MARKED (NODE)
1476 /* Nonzero if this BINFO is a primary base class. Note, this can be
1477 set for non-canonical virtual bases. For a virtual primary base
1478 you might also need to check whether it is canonical. */
1480 #define BINFO_PRIMARY_P(NODE) \
1481 (BINFO_PRIMARY_BASE_OF (NODE) != NULL_TREE)
1483 /* The index in the VTT where this subobject's sub-VTT can be found.
1484 NULL_TREE if there is no sub-VTT. */
1485 #define BINFO_SUBVTT_INDEX(NODE) TREE_VEC_ELT (NODE, BINFO_ELTS + 0)
1487 /* The index in the VTT where the vptr for this subobject can be
1488 found. NULL_TREE if there is no secondary vptr in the VTT. */
1489 #define BINFO_VPTR_INDEX(NODE) TREE_VEC_ELT (NODE, BINFO_ELTS + 1)
1491 /* The binfo of which NODE is a primary base. (This is different from
1492 BINFO_INHERITANCE_CHAIN for virtual base because a virtual base is
1493 sometimes a primary base for a class for which it is not an
1495 #define BINFO_PRIMARY_BASE_OF(NODE) TREE_VEC_ELT (NODE, BINFO_ELTS + 2)
1497 /* C++ binfos have 3 additional entries. */
1499 #define BINFO_LANG_ELTS (BINFO_ELTS + 3)
1501 /* Nonzero if this binfo is for a dependent base - one that should not
1503 #define BINFO_DEPENDENT_BASE_P(NODE) TREE_LANG_FLAG_1(NODE)
1505 /* Nonzero if this binfo has lost its primary base binfo (because that
1506 is a nearly-empty virtual base that has been taken by some other
1507 base in the complete hierarchy. */
1508 #define BINFO_LOST_PRIMARY_P(NODE) TREE_LANG_FLAG_2 (NODE)
1510 /* Nonzero if this binfo is an indirect primary base, i.e. a virtual
1511 base that is a primary base of some of other class in the
1513 #define BINFO_INDIRECT_PRIMARY_P(NODE) TREE_USED (NODE)
1515 /* Used by various search routines. */
1516 #define IDENTIFIER_MARKED(NODE) TREE_LANG_FLAG_0 (NODE)
1518 /* A TREE_LIST of the vcall indices associated with the class NODE.
1519 The TREE_PURPOSE of each node is a FUNCTION_DECL for a virtual
1520 function. The TREE_VALUE is the index into the virtual table where
1521 the vcall offset for that function is stored, when NODE is a
1523 #define CLASSTYPE_VCALL_INDICES(NODE) \
1524 (LANG_TYPE_CLASS_CHECK (NODE)->vcall_indices)
1526 /* The various vtables for the class NODE. The primary vtable will be
1527 first, followed by the construction vtables and VTT, if any. */
1528 #define CLASSTYPE_VTABLES(NODE) \
1529 (LANG_TYPE_CLASS_CHECK (NODE)->vtables)
1531 /* The std::type_info variable representing this class, or NULL if no
1532 such variable has been created. This field is only set for the
1533 TYPE_MAIN_VARIANT of the class. */
1534 #define CLASSTYPE_TYPEINFO_VAR(NODE) \
1535 (LANG_TYPE_CLASS_CHECK (NODE)->typeinfo_var)
1537 /* Accessor macros for the vfield slots in structures. */
1539 /* List of virtual table fields that this type contains (both the primary
1540 and secondaries). The TREE_VALUE is the class type where the vtable
1541 field was introduced. For a vtable field inherited from the primary
1542 base, or introduced by this class, the TREE_PURPOSE is NULL. For
1543 other vtable fields (those from non-primary bases), the
1544 TREE_PURPOSE is the BINFO of the base through which the vtable was
1546 #define CLASSTYPE_VFIELDS(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->vfields)
1548 /* Get the BINFO that introduced this vtable into the hierarchy (will
1549 be NULL for those created at this level, or from a primary
1551 #define VF_BINFO_VALUE(NODE) TREE_PURPOSE (NODE)
1553 /* Get the TYPE that introduced this vtable into the hierarchy (always
1555 #define VF_BASETYPE_VALUE(NODE) TREE_VALUE (NODE)
1557 /* Accessor macros for the BINFO_VIRTUALS list. */
1559 /* The number of bytes by which to adjust the `this' pointer when
1560 calling this virtual function. Subtract this value from the this
1561 pointer. Always non-NULL, might be constant zero though. */
1562 #define BV_DELTA(NODE) (TREE_PURPOSE (NODE))
1564 /* If non-NULL, the vtable index at which to find the vcall offset
1565 when calling this virtual function. Add the value at that vtable
1566 index to the this pointer. */
1567 #define BV_VCALL_INDEX(NODE) (TREE_TYPE (NODE))
1569 /* The function to call. */
1570 #define BV_FN(NODE) (TREE_VALUE (NODE))
1573 /* Nonzero for TREE_LIST node means that this list of things
1574 is a list of parameters, as opposed to a list of expressions. */
1575 #define TREE_PARMLIST(NODE) (TREE_LANG_FLAG_2 (NODE))
1577 /* Nonzero for a parmlist means that this parmlist ended in ... */
1578 #define PARMLIST_ELLIPSIS_P(NODE) TREE_LANG_FLAG_0 (NODE)
1580 /* For FUNCTION_TYPE or METHOD_TYPE, a list of the exceptions that
1581 this type can raise. Each TREE_VALUE is a _TYPE. The TREE_VALUE
1582 will be NULL_TREE to indicate a throw specification of `()', or
1583 no exceptions allowed. */
1584 #define TYPE_RAISES_EXCEPTIONS(NODE) TYPE_BINFO (NODE)
1586 /* For FUNCTION_TYPE or METHOD_TYPE, return 1 iff it is declared `throw()'. */
1587 #define TYPE_NOTHROW_P(NODE) \
1588 (TYPE_RAISES_EXCEPTIONS (NODE) \
1589 && TREE_VALUE (TYPE_RAISES_EXCEPTIONS (NODE)) == NULL_TREE)
1591 /* The binding level associated with the namespace. */
1592 #define NAMESPACE_LEVEL(NODE) \
1593 (DECL_LANG_SPECIFIC (NODE)->decl_flags.u.level)
1596 /* If a DECL has DECL_LANG_SPECIFIC, it is either a lang_decl_flags or
1597 a lang_decl (which has lang_decl_flags as its initial prefix).
1598 This macro is nonzero for tree nodes whose DECL_LANG_SPECIFIC is
1599 the full lang_decl, and not just lang_decl_flags. */
1600 #define CAN_HAVE_FULL_LANG_DECL_P(NODE) \
1601 (!(TREE_CODE (NODE) == VAR_DECL \
1602 || TREE_CODE (NODE) == CONST_DECL \
1603 || TREE_CODE (NODE) == FIELD_DECL \
1604 || TREE_CODE (NODE) == USING_DECL))
1606 struct lang_decl_flags GTY(())
1608 ENUM_BITFIELD(languages) language : 8;
1610 unsigned operator_attr : 1;
1611 unsigned constructor_attr : 1;
1612 unsigned destructor_attr : 1;
1613 unsigned friend_attr : 1;
1614 unsigned static_function : 1;
1615 unsigned pure_virtual : 1;
1616 unsigned has_in_charge_parm_p : 1;
1617 unsigned has_vtt_parm_p : 1;
1619 unsigned deferred : 1;
1620 unsigned use_template : 2;
1621 unsigned nonconverting : 1;
1622 unsigned not_really_extern : 1;
1623 unsigned needs_final_overrider : 1;
1624 unsigned initialized_in_class : 1;
1625 unsigned assignment_operator_p : 1;
1627 unsigned global_ctor_p : 1;
1628 unsigned global_dtor_p : 1;
1629 unsigned anticipated_p : 1;
1630 unsigned template_conv_p : 1;
1633 unsigned can_be_full : 1;
1634 unsigned this_thunk_p : 1;
1637 /* In a FUNCTION_DECL, VAR_DECL, TYPE_DECL, or TEMPLATE_DECL, this
1638 is DECL_TEMPLATE_INFO. */
1639 tree GTY ((tag ("0"))) template_info;
1641 /* In a NAMESPACE_DECL, this is NAMESPACE_LEVEL. */
1642 struct cp_binding_level * GTY ((tag ("1"))) level;
1643 } GTY ((desc ("%1.u1sel"))) u;
1645 union lang_decl_u2 {
1646 /* This is DECL_ACCESS. */
1647 tree GTY ((tag ("0"))) access;
1649 /* For VAR_DECL in function, this is DECL_DISCRIMINATOR. */
1650 int GTY ((tag ("1"))) discriminator;
1652 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
1653 THUNK_VIRTUAL_OFFSET. */
1654 tree GTY((tag ("2"))) virtual_offset;
1655 } GTY ((desc ("%1.u2sel"))) u2;
1658 /* sorted_fields is sorted based on a pointer, so we need to be able
1659 to resort it if pointers get rearranged. */
1661 struct lang_decl GTY(())
1663 struct lang_decl_flags decl_flags;
1667 struct full_lang_decl
1669 /* For a non-thunk function decl, this is a tree list of
1670 friendly classes. For a thunk function decl, it is the
1671 thunked to function decl. */
1672 tree befriending_classes;
1674 /* For a non-virtual FUNCTION_DECL, this is
1675 DECL_FRIEND_CONTEXT. For a virtual FUNCTION_DECL for which
1676 DECL_THIS_THUNK_P does not hold, this is DECL_THUNKS. Both
1677 this pointer and result pointer adjusting thunks are
1678 chained here. This pointer thunks to return pointer thunks
1679 will be chained on the return pointer thunk. */
1682 /* In a FUNCTION_DECL, this is DECL_CLONED_FUNCTION. */
1683 tree cloned_function;
1685 /* In a FUNCTION_DECL for which THUNK_P holds, this is
1686 THUNK_FIXED_OFFSET. */
1687 HOST_WIDE_INT fixed_offset;
1689 /* In an overloaded operator, this is the value of
1690 DECL_OVERLOADED_OPERATOR_P. */
1691 enum tree_code operator_code;
1694 unsigned pending_inline_p : 1;
1698 struct sorted_fields_type * GTY ((tag ("0"), reorder ("resort_sorted_fields")))
1700 struct cp_token_cache * GTY ((tag ("2"))) pending_inline_info;
1701 struct language_function * GTY ((tag ("1")))
1702 saved_language_function;
1703 } GTY ((desc ("%1.u3sel + %1.pending_inline_p"))) u;
1704 } GTY ((tag ("1"))) f;
1705 } GTY ((desc ("%1.decl_flags.can_be_full"))) u;
1708 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1710 #define LANG_DECL_U2_CHECK(NODE, TF) __extension__ \
1711 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
1712 if (lt->decl_flags.u2sel != TF) \
1713 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1714 <->decl_flags.u2; })
1718 #define LANG_DECL_U2_CHECK(NODE, TF) \
1719 (&DECL_LANG_SPECIFIC (NODE)->decl_flags.u2)
1721 #endif /* ENABLE_TREE_CHECKING */
1723 /* DECL_NEEDED_P holds of a declaration when we need to emit its
1724 definition. This is true when the back-end tells us that
1725 the symbol has been referenced in the generated code. If, however,
1726 we are not generating code, then it is also true when a symbol has
1727 just been used somewhere, even if it's not really needed. We need
1728 anything that isn't comdat, but we don't know for sure whether or
1729 not something is comdat until end-of-file. */
1730 #define DECL_NEEDED_P(DECL) \
1731 ((at_eof && TREE_PUBLIC (DECL) && !DECL_COMDAT (DECL)) \
1732 || (DECL_ASSEMBLER_NAME_SET_P (DECL) \
1733 && TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (DECL))) \
1734 || (((flag_syntax_only || flag_unit_at_a_time) && TREE_USED (DECL))))
1736 /* For a FUNCTION_DECL or a VAR_DECL, the language linkage for the
1737 declaration. Some entities (like a member function in a local
1738 class, or a local variable) do not have linkage at all, and this
1739 macro should not be used in those cases.
1741 Implementation note: A FUNCTION_DECL without DECL_LANG_SPECIFIC was
1742 created by language-independent code, and has C linkage. Most
1743 VAR_DECLs have C++ linkage, and do not have DECL_LANG_SPECIFIC, but
1744 we do create DECL_LANG_SPECIFIC for variables with non-C++ linkage. */
1745 #define DECL_LANGUAGE(NODE) \
1746 (DECL_LANG_SPECIFIC (NODE) \
1747 ? DECL_LANG_SPECIFIC (NODE)->decl_flags.language \
1748 : (TREE_CODE (NODE) == FUNCTION_DECL \
1749 ? lang_c : lang_cplusplus))
1751 /* Set the language linkage for NODE to LANGUAGE. */
1752 #define SET_DECL_LANGUAGE(NODE, LANGUAGE) \
1753 (DECL_LANG_SPECIFIC (NODE)->decl_flags.language = (LANGUAGE))
1755 /* For FUNCTION_DECLs: nonzero means that this function is a constructor. */
1756 #define DECL_CONSTRUCTOR_P(NODE) \
1757 (DECL_LANG_SPECIFIC (NODE)->decl_flags.constructor_attr)
1759 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a complete
1761 #define DECL_COMPLETE_CONSTRUCTOR_P(NODE) \
1762 (DECL_CONSTRUCTOR_P (NODE) \
1763 && DECL_NAME (NODE) == complete_ctor_identifier)
1765 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a base
1767 #define DECL_BASE_CONSTRUCTOR_P(NODE) \
1768 (DECL_CONSTRUCTOR_P (NODE) \
1769 && DECL_NAME (NODE) == base_ctor_identifier)
1771 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor, but not either the
1772 specialized in-charge constructor or the specialized not-in-charge
1774 #define DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P(NODE) \
1775 (DECL_CONSTRUCTOR_P (NODE) && !DECL_CLONED_FUNCTION_P (NODE))
1777 /* Nonzero if NODE (a FUNCTION_DECL) is a copy constructor. */
1778 #define DECL_COPY_CONSTRUCTOR_P(NODE) \
1779 (DECL_CONSTRUCTOR_P (NODE) && copy_fn_p (NODE) > 0)
1781 /* Nonzero if NODE is a destructor. */
1782 #define DECL_DESTRUCTOR_P(NODE) \
1783 (DECL_LANG_SPECIFIC (NODE)->decl_flags.destructor_attr)
1785 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor, but not the
1786 specialized in-charge constructor, in-charge deleting constructor,
1787 or the the base destructor. */
1788 #define DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P(NODE) \
1789 (DECL_DESTRUCTOR_P (NODE) && !DECL_CLONED_FUNCTION_P (NODE))
1791 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
1793 #define DECL_COMPLETE_DESTRUCTOR_P(NODE) \
1794 (DECL_DESTRUCTOR_P (NODE) \
1795 && DECL_NAME (NODE) == complete_dtor_identifier)
1797 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a base
1799 #define DECL_BASE_DESTRUCTOR_P(NODE) \
1800 (DECL_DESTRUCTOR_P (NODE) \
1801 && DECL_NAME (NODE) == base_dtor_identifier)
1803 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
1804 object that deletes the object after it has been destroyed. */
1805 #define DECL_DELETING_DESTRUCTOR_P(NODE) \
1806 (DECL_DESTRUCTOR_P (NODE) \
1807 && DECL_NAME (NODE) == deleting_dtor_identifier)
1809 /* Nonzero if NODE (a FUNCTION_DECL) is a cloned constructor or
1811 #define DECL_CLONED_FUNCTION_P(NODE) \
1812 ((TREE_CODE (NODE) == FUNCTION_DECL \
1813 || TREE_CODE (NODE) == TEMPLATE_DECL) \
1814 && DECL_LANG_SPECIFIC (NODE) \
1815 && DECL_CLONED_FUNCTION (NODE) != NULL_TREE)
1817 /* If DECL_CLONED_FUNCTION_P holds, this is the function that was
1819 #define DECL_CLONED_FUNCTION(NODE) \
1820 (DECL_LANG_SPECIFIC (NODE)->u.f.cloned_function)
1822 /* Nonzero if NODE has DECL_DISCRIMINATOR and not DECL_ACCESS. */
1823 #define DECL_DISCRIMINATOR_P(NODE) \
1824 (TREE_CODE (NODE) == VAR_DECL \
1825 && DECL_FUNCTION_SCOPE_P (NODE))
1827 /* Discriminator for name mangling. */
1828 #define DECL_DISCRIMINATOR(NODE) (LANG_DECL_U2_CHECK (NODE, 1)->discriminator)
1830 /* Nonzero if the VTT parm has been added to NODE. */
1831 #define DECL_HAS_VTT_PARM_P(NODE) \
1832 (DECL_LANG_SPECIFIC (NODE)->decl_flags.has_vtt_parm_p)
1834 /* Nonzero if NODE is a FUNCTION_DECL for which a VTT parameter is
1836 #define DECL_NEEDS_VTT_PARM_P(NODE) \
1837 (TYPE_USES_VIRTUAL_BASECLASSES (DECL_CONTEXT (NODE)) \
1838 && (DECL_BASE_CONSTRUCTOR_P (NODE) \
1839 || DECL_BASE_DESTRUCTOR_P (NODE)))
1841 /* Nonzero if NODE is a user-defined conversion operator. */
1842 #define DECL_CONV_FN_P(NODE) \
1843 (IDENTIFIER_TYPENAME_P (DECL_NAME (NODE)))
1845 /* If FN is a conversion operator, the type to which it converts.
1846 Otherwise, NULL_TREE. */
1847 #define DECL_CONV_FN_TYPE(FN) \
1848 (DECL_CONV_FN_P (FN) ? TREE_TYPE (DECL_NAME (FN)) : NULL_TREE)
1850 /* Nonzero if NODE, which is a TEMPLATE_DECL, is a template
1851 conversion operator to a type dependent on the innermost template
1853 #define DECL_TEMPLATE_CONV_FN_P(NODE) \
1854 (DECL_LANG_SPECIFIC (NODE)->decl_flags.template_conv_p)
1856 /* Set the overloaded operator code for NODE to CODE. */
1857 #define SET_OVERLOADED_OPERATOR_CODE(NODE, CODE) \
1858 (DECL_LANG_SPECIFIC (NODE)->u.f.operator_code = (CODE))
1860 /* If NODE is an overloaded operator, then this returns the TREE_CODE
1861 associated with the overloaded operator.
1862 DECL_ASSIGNMENT_OPERATOR_P must also be checked to determine
1863 whether or not NODE is an assignment operator. If NODE is not an
1864 overloaded operator, ERROR_MARK is returned. Since the numerical
1865 value of ERROR_MARK is zero, this macro can be used as a predicate
1866 to test whether or not NODE is an overloaded operator. */
1867 #define DECL_OVERLOADED_OPERATOR_P(NODE) \
1868 (IDENTIFIER_OPNAME_P (DECL_NAME (NODE)) \
1869 ? DECL_LANG_SPECIFIC (NODE)->u.f.operator_code : ERROR_MARK)
1871 /* Nonzero if NODE is an assignment operator. */
1872 #define DECL_ASSIGNMENT_OPERATOR_P(NODE) \
1873 (DECL_LANG_SPECIFIC (NODE)->decl_flags.assignment_operator_p)
1875 /* For FUNCTION_DECLs: nonzero means that this function is a
1876 constructor or a destructor with an extra in-charge parameter to
1877 control whether or not virtual bases are constructed. */
1878 #define DECL_HAS_IN_CHARGE_PARM_P(NODE) \
1879 (DECL_LANG_SPECIFIC (NODE)->decl_flags.has_in_charge_parm_p)
1881 /* Nonzero if NODE is an overloaded `operator delete[]' function. */
1882 #define DECL_ARRAY_DELETE_OPERATOR_P(NODE) \
1883 (DECL_OVERLOADED_OPERATOR_P (NODE) == VEC_DELETE_EXPR)
1885 /* Nonzero for _DECL means that this decl appears in (or will appear
1886 in) as a member in a RECORD_TYPE or UNION_TYPE node. It is also for
1887 detecting circularity in case members are multiply defined. In the
1888 case of a VAR_DECL, it is also used to determine how program storage
1889 should be allocated. */
1890 #define DECL_IN_AGGR_P(NODE) (DECL_LANG_FLAG_3 (NODE))
1892 /* Nonzero for a VAR_DECL means that the variable's initialization has
1894 #define DECL_INITIALIZED_P(NODE) \
1895 (TREE_LANG_FLAG_1 (VAR_DECL_CHECK (NODE)))
1897 /* Nonzero for a VAR_DECL that was initialized with a
1898 constant-expression. */
1899 #define DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P(NODE) \
1900 (TREE_LANG_FLAG_2 (VAR_DECL_CHECK (NODE)))
1902 /* Nonzero if the DECL was initialized in the class definition itself,
1903 rather than outside the class. This is used for both static member
1904 VAR_DECLS, and FUNTION_DECLS that are defined in the class. */
1905 #define DECL_INITIALIZED_IN_CLASS_P(DECL) \
1906 (DECL_LANG_SPECIFIC (DECL)->decl_flags.initialized_in_class)
1908 /* Nonzero for FUNCTION_DECL means that this decl is just a
1909 friend declaration, and should not be added to the list of
1910 member functions for this class. */
1911 #define DECL_FRIEND_P(NODE) (DECL_LANG_SPECIFIC (NODE)->decl_flags.friend_attr)
1913 /* A TREE_LIST of the types which have befriended this FUNCTION_DECL. */
1914 #define DECL_BEFRIENDING_CLASSES(NODE) \
1915 (DECL_LANG_SPECIFIC (NODE)->u.f.befriending_classes)
1917 /* Nonzero for FUNCTION_DECL means that this decl is a static
1919 #define DECL_STATIC_FUNCTION_P(NODE) \
1920 (DECL_LANG_SPECIFIC (NODE)->decl_flags.static_function)
1922 /* Nonzero for FUNCTION_DECL means that this decl is a non-static
1924 #define DECL_NONSTATIC_MEMBER_FUNCTION_P(NODE) \
1925 (TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE)
1927 /* Nonzero for FUNCTION_DECL means that this decl is a member function
1928 (static or non-static). */
1929 #define DECL_FUNCTION_MEMBER_P(NODE) \
1930 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) || DECL_STATIC_FUNCTION_P (NODE))
1932 /* Nonzero for FUNCTION_DECL means that this member function
1933 has `this' as const X *const. */
1934 #define DECL_CONST_MEMFUNC_P(NODE) \
1935 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
1936 && CP_TYPE_CONST_P (TREE_TYPE (TREE_VALUE \
1937 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
1939 /* Nonzero for FUNCTION_DECL means that this member function
1940 has `this' as volatile X *const. */
1941 #define DECL_VOLATILE_MEMFUNC_P(NODE) \
1942 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
1943 && CP_TYPE_VOLATILE_P (TREE_TYPE (TREE_VALUE \
1944 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
1946 /* Nonzero for a DECL means that this member is a non-static member. */
1947 #define DECL_NONSTATIC_MEMBER_P(NODE) \
1948 ((TREE_CODE (NODE) == FUNCTION_DECL \
1949 && DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE)) \
1950 || TREE_CODE (NODE) == FIELD_DECL)
1952 /* Nonzero for _DECL means that this member object type
1954 #define DECL_MUTABLE_P(NODE) (DECL_LANG_FLAG_0 (NODE))
1956 /* Nonzero for _DECL means that this constructor is a non-converting
1958 #define DECL_NONCONVERTING_P(NODE) \
1959 (DECL_LANG_SPECIFIC (NODE)->decl_flags.nonconverting)
1961 /* Nonzero for FUNCTION_DECL means that this member function is a pure
1962 virtual function. */
1963 #define DECL_PURE_VIRTUAL_P(NODE) \
1964 (DECL_LANG_SPECIFIC (NODE)->decl_flags.pure_virtual)
1966 /* Nonzero for FUNCTION_DECL means that this member function
1967 must be overridden by derived classes. */
1968 #define DECL_NEEDS_FINAL_OVERRIDER_P(NODE) \
1969 (DECL_LANG_SPECIFIC (NODE)->decl_flags.needs_final_overrider)
1971 /* The thunks associated with NODE, a FUNCTION_DECL. */
1972 #define DECL_THUNKS(NODE) \
1973 (DECL_LANG_SPECIFIC (NODE)->u.f.context)
1975 /* Nonzero if NODE is a thunk, rather than an ordinary function. */
1976 #define DECL_THUNK_P(NODE) \
1977 (TREE_CODE (NODE) == FUNCTION_DECL \
1978 && DECL_LANG_FLAG_7 (NODE))
1980 /* Nonzero if NODE is a this pointer adjusting thunk. */
1981 #define DECL_THIS_THUNK_P(NODE) \
1982 (DECL_THUNK_P (NODE) && DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p)
1984 /* Nonzero if NODE is a result pointer adjusting thunk. */
1985 #define DECL_RESULT_THUNK_P(NODE) \
1986 (DECL_THUNK_P (NODE) && !DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p)
1988 /* Nonzero if NODE is a FUNCTION_DECL, but not a thunk. */
1989 #define DECL_NON_THUNK_FUNCTION_P(NODE) \
1990 (TREE_CODE (NODE) == FUNCTION_DECL && !DECL_THUNK_P (NODE))
1992 /* Nonzero if NODE is `extern "C"'. */
1993 #define DECL_EXTERN_C_P(NODE) \
1994 (DECL_LANGUAGE (NODE) == lang_c)
1996 /* Nonzero if NODE is an `extern "C"' function. */
1997 #define DECL_EXTERN_C_FUNCTION_P(NODE) \
1998 (DECL_NON_THUNK_FUNCTION_P (NODE) && DECL_EXTERN_C_P (NODE))
2000 /* Set DECL_THUNK_P for node. */
2001 #define SET_DECL_THUNK_P(NODE, THIS_ADJUSTING) \
2002 (DECL_LANG_FLAG_7 (NODE) = 1, \
2003 DECL_LANG_SPECIFIC (NODE)->u.f.u3sel = 1, \
2004 DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p = (THIS_ADJUSTING))
2006 /* Nonzero if this DECL is the __PRETTY_FUNCTION__ variable in a
2007 template function. */
2008 #define DECL_PRETTY_FUNCTION_P(NODE) \
2009 (TREE_LANG_FLAG_0 (VAR_DECL_CHECK (NODE)))
2011 /* The _TYPE context in which this _DECL appears. This field holds the
2012 class where a virtual function instance is actually defined. */
2013 #define DECL_CLASS_CONTEXT(NODE) \
2014 (DECL_CLASS_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : NULL_TREE)
2016 /* For a non-member friend function, the class (if any) in which this
2017 friend was defined. For example, given:
2019 struct S { friend void f (); };
2021 the DECL_FRIEND_CONTEXT for `f' will be `S'. */
2022 #define DECL_FRIEND_CONTEXT(NODE) \
2023 ((DECL_FRIEND_P (NODE) && !DECL_FUNCTION_MEMBER_P (NODE)) \
2024 ? DECL_LANG_SPECIFIC (NODE)->u.f.context \
2027 /* Set the DECL_FRIEND_CONTEXT for NODE to CONTEXT. */
2028 #define SET_DECL_FRIEND_CONTEXT(NODE, CONTEXT) \
2029 (DECL_LANG_SPECIFIC (NODE)->u.f.context = (CONTEXT))
2031 /* NULL_TREE in DECL_CONTEXT represents the global namespace. */
2032 #define CP_DECL_CONTEXT(NODE) \
2033 (DECL_CONTEXT (NODE) ? DECL_CONTEXT (NODE) : global_namespace)
2034 #define FROB_CONTEXT(NODE) ((NODE) == global_namespace ? NULL_TREE : (NODE))
2036 /* 1 iff NODE has namespace scope, including the global namespace. */
2037 #define DECL_NAMESPACE_SCOPE_P(NODE) \
2038 (!DECL_TEMPLATE_PARM_P (NODE) \
2039 && TREE_CODE (CP_DECL_CONTEXT (NODE)) == NAMESPACE_DECL)
2041 /* 1 iff NODE is a class member. */
2042 #define DECL_CLASS_SCOPE_P(NODE) \
2043 (DECL_CONTEXT (NODE) && TYPE_P (DECL_CONTEXT (NODE)))
2045 /* 1 iff NODE is function-local. */
2046 #define DECL_FUNCTION_SCOPE_P(NODE) \
2047 (DECL_CONTEXT (NODE) \
2048 && TREE_CODE (DECL_CONTEXT (NODE)) == FUNCTION_DECL)
2050 /* 1 iff VAR_DECL node NODE is virtual table or VTT. */
2051 #define DECL_VTABLE_OR_VTT_P(NODE) TREE_LANG_FLAG_5 (VAR_DECL_CHECK (NODE))
2053 /* 1 iff NODE is function-local, but for types. */
2054 #define LOCAL_CLASS_P(NODE) \
2055 (decl_function_context (TYPE_MAIN_DECL (NODE)) != NULL_TREE)
2057 /* For a NAMESPACE_DECL: the list of using namespace directives
2058 The PURPOSE is the used namespace, the value is the namespace
2059 that is the common ancestor. */
2060 #define DECL_NAMESPACE_USING(NODE) DECL_VINDEX (NAMESPACE_DECL_CHECK (NODE))
2062 /* In a NAMESPACE_DECL, the DECL_INITIAL is used to record all users
2063 of a namespace, to record the transitive closure of using namespace. */
2064 #define DECL_NAMESPACE_USERS(NODE) DECL_INITIAL (NAMESPACE_DECL_CHECK (NODE))
2066 /* In a NAMESPACE_DECL, the list of namespaces which have associated
2067 themselves with this one. */
2068 #define DECL_NAMESPACE_ASSOCIATIONS(NODE) \
2069 (NAMESPACE_DECL_CHECK (NODE)->decl.saved_tree)
2071 /* In a NAMESPACE_DECL, points to the original namespace if this is
2072 a namespace alias. */
2073 #define DECL_NAMESPACE_ALIAS(NODE) \
2074 DECL_ABSTRACT_ORIGIN (NAMESPACE_DECL_CHECK (NODE))
2075 #define ORIGINAL_NAMESPACE(NODE) \
2076 (DECL_NAMESPACE_ALIAS (NODE) ? DECL_NAMESPACE_ALIAS (NODE) : (NODE))
2078 /* Nonzero if NODE is the std namespace. */
2079 #define DECL_NAMESPACE_STD_P(NODE) \
2080 (TREE_CODE (NODE) == NAMESPACE_DECL \
2081 && CP_DECL_CONTEXT (NODE) == global_namespace \
2082 && DECL_NAME (NODE) == std_identifier)
2084 /* In a non-local VAR_DECL with static storage duration, this is the
2085 initialization priority. If this value is zero, the NODE will be
2086 initialized at the DEFAULT_INIT_PRIORITY. */
2087 #define DECL_INIT_PRIORITY(NODE) (VAR_DECL_CHECK (NODE)->decl.u2.i)
2089 /* In a TREE_LIST concatenating using directives, indicate indirect
2091 #define TREE_INDIRECT_USING(NODE) (TREE_LIST_CHECK (NODE)->common.lang_flag_0)
2093 /* In a VAR_DECL for a variable declared in a for statement,
2094 this is the shadowed (local) variable. */
2095 #define DECL_SHADOWED_FOR_VAR(NODE) DECL_RESULT_FLD(VAR_DECL_CHECK (NODE))
2097 /* In a FUNCTION_DECL, this is nonzero if this function was defined in
2098 the class definition. We have saved away the text of the function,
2099 but have not yet processed it. */
2100 #define DECL_PENDING_INLINE_P(NODE) \
2101 (DECL_LANG_SPECIFIC (NODE)->u.f.pending_inline_p)
2103 /* If DECL_PENDING_INLINE_P holds, this is the saved text of the
2105 #define DECL_PENDING_INLINE_INFO(NODE) \
2106 (DECL_LANG_SPECIFIC (NODE)->u.f.u.pending_inline_info)
2108 /* For a TYPE_DECL: if this structure has many fields, we'll sort them
2109 and put them into a TREE_VEC. */
2110 #define DECL_SORTED_FIELDS(NODE) \
2111 (DECL_LANG_SPECIFIC (TYPE_DECL_CHECK (NODE))->u.f.u.sorted_fields)
2113 /* True if on the deferred_fns (see decl2.c) list. */
2114 #define DECL_DEFERRED_FN(DECL) \
2115 (DECL_LANG_SPECIFIC (DECL)->decl_flags.deferred)
2117 /* For a VAR_DECL, FUNCTION_DECL, TYPE_DECL or TEMPLATE_DECL:
2118 template-specific information. */
2119 #define DECL_TEMPLATE_INFO(NODE) \
2120 (DECL_LANG_SPECIFIC (VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK (NODE)) \
2121 ->decl_flags.u.template_info)
2123 /* For a VAR_DECL, indicates that the variable has been processed.
2124 This flag is set and unset throughout the code; it is always
2125 used for a temporary purpose. */
2126 #define DECL_VAR_MARKED_P(NODE) \
2127 (DECL_LANG_FLAG_4 (VAR_DECL_CHECK (NODE)))
2129 /* Template information for a RECORD_TYPE or UNION_TYPE. */
2130 #define CLASSTYPE_TEMPLATE_INFO(NODE) \
2131 (LANG_TYPE_CLASS_CHECK (RECORD_OR_UNION_TYPE_CHECK (NODE))->template_info)
2133 /* Template information for an ENUMERAL_TYPE. Although an enumeration may
2134 not be a primary template, it may be declared within the scope of a
2135 primary template and the enumeration constants may depend on
2136 non-type template parameters. */
2137 #define ENUM_TEMPLATE_INFO(NODE) (TYPE_BINFO (ENUMERAL_TYPE_CHECK (NODE)))
2139 /* Template information for a template template parameter. */
2140 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO(NODE) \
2141 (LANG_TYPE_CLASS_CHECK (BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK (NODE)) \
2144 /* Template information for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2145 #define TYPE_TEMPLATE_INFO(NODE) \
2146 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2147 ? ENUM_TEMPLATE_INFO (NODE) : \
2148 (TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM \
2149 ? TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO (NODE) : \
2150 (TYPE_LANG_SPECIFIC (NODE) \
2151 ? CLASSTYPE_TEMPLATE_INFO (NODE) \
2154 /* Set the template information for an ENUMERAL_, RECORD_, or
2155 UNION_TYPE to VAL. */
2156 #define SET_TYPE_TEMPLATE_INFO(NODE, VAL) \
2157 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2158 ? (ENUM_TEMPLATE_INFO (NODE) = (VAL)) \
2159 : (CLASSTYPE_TEMPLATE_INFO (NODE) = (VAL)))
2161 #define TI_TEMPLATE(NODE) (TREE_PURPOSE (NODE))
2162 #define TI_ARGS(NODE) (TREE_VALUE (NODE))
2163 #define TI_PENDING_TEMPLATE_FLAG(NODE) TREE_LANG_FLAG_1 (NODE)
2165 /* We use TREE_VECs to hold template arguments. If there is only one
2166 level of template arguments, then the TREE_VEC contains the
2167 arguments directly. If there is more than one level of template
2168 arguments, then each entry in the TREE_VEC is itself a TREE_VEC,
2169 containing the template arguments for a single level. The first
2170 entry in the outer TREE_VEC is the outermost level of template
2171 parameters; the last is the innermost.
2173 It is incorrect to ever form a template argument vector containing
2174 only one level of arguments, but which is a TREE_VEC containing as
2175 its only entry the TREE_VEC for that level. */
2177 /* Nonzero if the template arguments is actually a vector of vectors,
2178 rather than just a vector. */
2179 #define TMPL_ARGS_HAVE_MULTIPLE_LEVELS(NODE) \
2180 (NODE && TREE_VEC_ELT (NODE, 0) \
2181 && TREE_CODE (TREE_VEC_ELT (NODE, 0)) == TREE_VEC)
2183 /* The depth of a template argument vector. When called directly by
2184 the parser, we use a TREE_LIST rather than a TREE_VEC to represent
2185 template arguments. In fact, we may even see NULL_TREE if there
2186 are no template arguments. In both of those cases, there is only
2187 one level of template arguments. */
2188 #define TMPL_ARGS_DEPTH(NODE) \
2189 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (NODE) ? TREE_VEC_LENGTH (NODE) : 1)
2191 /* The LEVELth level of the template ARGS. The outermost level of
2192 args is level 1, not level 0. */
2193 #define TMPL_ARGS_LEVEL(ARGS, LEVEL) \
2194 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (ARGS) \
2195 ? TREE_VEC_ELT (ARGS, (LEVEL) - 1) : (ARGS))
2197 /* Set the LEVELth level of the template ARGS to VAL. This macro does
2198 not work with single-level argument vectors. */
2199 #define SET_TMPL_ARGS_LEVEL(ARGS, LEVEL, VAL) \
2200 (TREE_VEC_ELT (ARGS, (LEVEL) - 1) = (VAL))
2202 /* Accesses the IDXth parameter in the LEVELth level of the ARGS. */
2203 #define TMPL_ARG(ARGS, LEVEL, IDX) \
2204 (TREE_VEC_ELT (TMPL_ARGS_LEVEL (ARGS, LEVEL), IDX))
2206 /* Set the IDXth element in the LEVELth level of ARGS to VAL. This
2207 macro does not work with single-level argument vectors. */
2208 #define SET_TMPL_ARG(ARGS, LEVEL, IDX, VAL) \
2209 (TREE_VEC_ELT (TREE_VEC_ELT ((ARGS), (LEVEL) - 1), (IDX)) = (VAL))
2211 /* Given a single level of template arguments in NODE, return the
2212 number of arguments. */
2213 #define NUM_TMPL_ARGS(NODE) \
2214 (TREE_VEC_LENGTH (NODE))
2216 /* Returns the innermost level of template arguments in ARGS. */
2217 #define INNERMOST_TEMPLATE_ARGS(NODE) \
2218 (get_innermost_template_args ((NODE), 1))
2220 /* The number of levels of template parameters given by NODE. */
2221 #define TMPL_PARMS_DEPTH(NODE) \
2222 ((HOST_WIDE_INT) TREE_INT_CST_LOW (TREE_PURPOSE (NODE)))
2224 /* The TEMPLATE_DECL instantiated or specialized by NODE. This
2225 TEMPLATE_DECL will be the immediate parent, not the most general
2226 template. For example, in:
2228 template <class T> struct S { template <class U> void f(U); }
2230 the FUNCTION_DECL for S<int>::f<double> will have, as its
2231 DECL_TI_TEMPLATE, `template <class U> S<int>::f<U>'.
2233 As a special case, for a member friend template of a template
2234 class, this value will not be a TEMPLATE_DECL, but rather an
2235 IDENTIFIER_NODE or OVERLOAD indicating the name of the template and
2236 any explicit template arguments provided. For example, in:
2238 template <class T> struct S { friend void f<int>(int, double); }
2240 the DECL_TI_TEMPLATE will be an IDENTIFIER_NODE for `f' and the
2241 DECL_TI_ARGS will be {int}. */
2242 #define DECL_TI_TEMPLATE(NODE) TI_TEMPLATE (DECL_TEMPLATE_INFO (NODE))
2244 /* The template arguments used to obtain this decl from the most
2245 general form of DECL_TI_TEMPLATE. For the example given for
2246 DECL_TI_TEMPLATE, the DECL_TI_ARGS will be {int, double}. These
2247 are always the full set of arguments required to instantiate this
2248 declaration from the most general template specialized here. */
2249 #define DECL_TI_ARGS(NODE) TI_ARGS (DECL_TEMPLATE_INFO (NODE))
2250 #define CLASSTYPE_TI_TEMPLATE(NODE) TI_TEMPLATE (CLASSTYPE_TEMPLATE_INFO (NODE))
2251 #define CLASSTYPE_TI_ARGS(NODE) TI_ARGS (CLASSTYPE_TEMPLATE_INFO (NODE))
2252 #define ENUM_TI_TEMPLATE(NODE) \
2253 TI_TEMPLATE (ENUM_TEMPLATE_INFO (NODE))
2254 #define ENUM_TI_ARGS(NODE) \
2255 TI_ARGS (ENUM_TEMPLATE_INFO (NODE))
2257 /* For a template instantiation TYPE, returns the TYPE corresponding
2258 to the primary template. Otherwise returns TYPE itself. */
2259 #define CLASSTYPE_PRIMARY_TEMPLATE_TYPE(TYPE) \
2260 ((CLASSTYPE_USE_TEMPLATE ((TYPE)) && !CLASSTYPE_TEMPLATE_SPECIALIZATION ((TYPE))) \
2261 ? TREE_TYPE (DECL_TEMPLATE_RESULT (DECL_PRIMARY_TEMPLATE \
2262 (CLASSTYPE_TI_TEMPLATE ((TYPE))))) \
2265 /* Like DECL_TI_TEMPLATE, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2266 #define TYPE_TI_TEMPLATE(NODE) \
2267 (TI_TEMPLATE (TYPE_TEMPLATE_INFO (NODE)))
2269 /* Like DECL_TI_ARGS, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2270 #define TYPE_TI_ARGS(NODE) \
2271 (TI_ARGS (TYPE_TEMPLATE_INFO (NODE)))
2273 #define INNERMOST_TEMPLATE_PARMS(NODE) TREE_VALUE (NODE)
2275 /* Nonzero if the NODE corresponds to the template parameters for a
2276 member template, whose inline definition is being processed after
2277 the class definition is complete. */
2278 #define TEMPLATE_PARMS_FOR_INLINE(NODE) TREE_LANG_FLAG_1 (NODE)
2280 /* In a FUNCTION_DECL, the saved language-specific per-function data. */
2281 #define DECL_SAVED_FUNCTION_DATA(NODE) \
2282 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (NODE)) \
2283 ->u.f.u.saved_language_function)
2285 #define NEW_EXPR_USE_GLOBAL(NODE) TREE_LANG_FLAG_0 (NODE)
2286 #define DELETE_EXPR_USE_GLOBAL(NODE) TREE_LANG_FLAG_0 (NODE)
2287 #define DELETE_EXPR_USE_VEC(NODE) TREE_LANG_FLAG_1 (NODE)
2289 /* Indicates that this is a non-dependent COMPOUND_EXPR which will
2290 resolve to a function call. */
2291 #define COMPOUND_EXPR_OVERLOADED(NODE) TREE_LANG_FLAG_0 (NODE)
2293 /* In a CALL_EXPR appearing in a template, true if Koenig lookup
2294 should be performed at instantiation time. */
2295 #define KOENIG_LOOKUP_P(NODE) TREE_LANG_FLAG_0(NODE)
2297 /* Nonzero if this AGGR_INIT_EXPR provides for initialization via a
2298 constructor call, rather than an ordinary function call. */
2299 #define AGGR_INIT_VIA_CTOR_P(NODE) \
2300 TREE_LANG_FLAG_0 (AGGR_INIT_EXPR_CHECK (NODE))
2302 /* The TYPE_MAIN_DECL for a class template type is a TYPE_DECL, not a
2303 TEMPLATE_DECL. This macro determines whether or not a given class
2304 type is really a template type, as opposed to an instantiation or
2305 specialization of one. */
2306 #define CLASSTYPE_IS_TEMPLATE(NODE) \
2307 (CLASSTYPE_TEMPLATE_INFO (NODE) \
2308 && !CLASSTYPE_USE_TEMPLATE (NODE) \
2309 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE)))
2311 /* The name used by the user to name the typename type. Typically,
2312 this is an IDENTIFIER_NODE, and the same as the DECL_NAME on the
2313 corresponding TYPE_DECL. However, this may also be a
2314 TEMPLATE_ID_EXPR if we had something like `typename X::Y<T>'. */
2315 #define TYPENAME_TYPE_FULLNAME(NODE) (TYPE_FIELDS (NODE))
2317 /* Nonzero in INTEGER_CST means that this int is negative by dint of
2318 using a twos-complement negated operand. */
2319 #define TREE_NEGATED_INT(NODE) TREE_LANG_FLAG_0 (INTEGER_CST_CHECK (NODE))
2321 /* Nonzero in any kind of _TYPE where conversions to base-classes may
2322 involve pointer arithmetic. If this is zero, then converting to
2323 a base-class never requires changing the value of the pointer. */
2324 #define TYPE_BASE_CONVS_MAY_REQUIRE_CODE_P(NODE) (TREE_LANG_FLAG_1 (NODE))
2328 A class that declares or inherits a virtual function is called a
2329 polymorphic class. */
2330 #define TYPE_POLYMORPHIC_P(NODE) (TREE_LANG_FLAG_2 (NODE))
2332 /* Nonzero if this class has a virtual function table pointer. */
2333 #define TYPE_CONTAINS_VPTR_P(NODE) \
2334 (TYPE_POLYMORPHIC_P (NODE) \
2335 || TYPE_USES_VIRTUAL_BASECLASSES (NODE))
2337 /* This flag is true of a local VAR_DECL if it was declared in a for
2338 statement, but we are no longer in the scope of the for. */
2339 #define DECL_DEAD_FOR_LOCAL(NODE) DECL_LANG_FLAG_7 (VAR_DECL_CHECK (NODE))
2341 /* This flag is set on a VAR_DECL that is a DECL_DEAD_FOR_LOCAL
2342 if we already emitted a warning about using it. */
2343 #define DECL_ERROR_REPORTED(NODE) DECL_LANG_FLAG_0 (VAR_DECL_CHECK (NODE))
2345 /* Nonzero if NODE is a FUNCTION_DECL (for a function with global
2346 scope) declared in a local scope. */
2347 #define DECL_LOCAL_FUNCTION_P(NODE) \
2348 DECL_LANG_FLAG_0 (FUNCTION_DECL_CHECK (NODE))
2350 /* Nonzero if NODE is a FUNCTION_DECL for a built-in function, and we have
2351 not yet seen a prototype for that function. */
2352 #define DECL_ANTICIPATED(NODE) \
2353 (DECL_LANG_SPECIFIC (DECL_CHECK (NODE))->decl_flags.anticipated_p)
2355 /* Record whether a typedef for type `int' was actually `signed int'. */
2356 #define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP)
2358 /* Returns nonzero if DECL has external linkage, as specified by the
2359 language standard. (This predicate may hold even when the
2360 corresponding entity is not actually given external linkage in the
2361 object file; see decl_linkage for details.) */
2362 #define DECL_EXTERNAL_LINKAGE_P(DECL) \
2363 (decl_linkage (DECL) == lk_external)
2365 #define INTEGRAL_CODE_P(CODE) \
2366 ((CODE) == INTEGER_TYPE || (CODE) == ENUMERAL_TYPE || (CODE) == BOOLEAN_TYPE)
2368 /* [basic.fundamental]
2370 Types bool, char, wchar_t, and the signed and unsigned integer types
2371 are collectively called integral types.
2373 Note that INTEGRAL_TYPE_P, as defined in tree.h, allows enumeration
2374 types as well, which is incorrect in C++. */
2375 #define CP_INTEGRAL_TYPE_P(TYPE) \
2376 (TREE_CODE (TYPE) == BOOLEAN_TYPE \
2377 || TREE_CODE (TYPE) == INTEGER_TYPE)
2379 /* Returns true if TYPE is an integral or enumeration name. */
2380 #define INTEGRAL_OR_ENUMERATION_TYPE_P(TYPE) \
2381 (CP_INTEGRAL_TYPE_P (TYPE) || TREE_CODE (TYPE) == ENUMERAL_TYPE)
2383 /* [basic.fundamental]
2385 Integral and floating types are collectively called arithmetic
2387 #define ARITHMETIC_TYPE_P(TYPE) \
2388 (CP_INTEGRAL_TYPE_P (TYPE) || TREE_CODE (TYPE) == REAL_TYPE)
2392 Arithmetic types, enumeration types, pointer types, and
2393 pointer-to-member types, are collectively called scalar types. */
2394 #define SCALAR_TYPE_P(TYPE) \
2395 (ARITHMETIC_TYPE_P (TYPE) \
2396 || TREE_CODE (TYPE) == ENUMERAL_TYPE \
2397 || TYPE_PTR_P (TYPE) \
2398 || TYPE_PTR_TO_MEMBER_P (TYPE))
2402 An aggregate is an array or a class with no user-declared
2403 constructors, no private or protected non-static data members, no
2404 base classes, and no virtual functions.
2406 As an extension, we also treat vectors as aggregates. */
2407 #define CP_AGGREGATE_TYPE_P(TYPE) \
2408 (TREE_CODE (TYPE) == ARRAY_TYPE \
2409 || TREE_CODE (TYPE) == VECTOR_TYPE \
2410 || (CLASS_TYPE_P (TYPE) \
2411 && !CLASSTYPE_NON_AGGREGATE (TYPE)))
2413 /* Nonzero for a class type means that the class type has a
2414 user-declared constructor. */
2415 #define TYPE_HAS_CONSTRUCTOR(NODE) (TYPE_LANG_FLAG_1 (NODE))
2417 /* When appearing in an INDIRECT_REF, it means that the tree structure
2418 underneath is actually a call to a constructor. This is needed
2419 when the constructor must initialize local storage (which can
2420 be automatically destroyed), rather than allowing it to allocate
2421 space from the heap.
2423 When appearing in a SAVE_EXPR, it means that underneath
2424 is a call to a constructor.
2426 When appearing in a CONSTRUCTOR, it means that it was
2427 a GNU C constructor expression.
2429 When appearing in a FIELD_DECL, it means that this field
2430 has been duly initialized in its constructor. */
2431 #define TREE_HAS_CONSTRUCTOR(NODE) (TREE_LANG_FLAG_4 (NODE))
2433 #define EMPTY_CONSTRUCTOR_P(NODE) (TREE_CODE (NODE) == CONSTRUCTOR \
2434 && CONSTRUCTOR_ELTS (NODE) == NULL_TREE \
2435 && ! TREE_HAS_CONSTRUCTOR (NODE))
2437 /* Nonzero for _TYPE means that the _TYPE defines a destructor. */
2438 #define TYPE_HAS_DESTRUCTOR(NODE) (TYPE_LANG_FLAG_2 (NODE))
2440 /* Nonzero means that an object of this type can not be initialized using
2441 an initializer list. */
2442 #define CLASSTYPE_NON_AGGREGATE(NODE) \
2443 (LANG_TYPE_CLASS_CHECK (NODE)->non_aggregate)
2444 #define TYPE_NON_AGGREGATE_CLASS(NODE) \
2445 (IS_AGGR_TYPE (NODE) && CLASSTYPE_NON_AGGREGATE (NODE))
2447 /* Nonzero if there is a user-defined X::op=(x&) for this class. */
2448 #define TYPE_HAS_REAL_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_real_assign_ref)
2449 #define TYPE_HAS_COMPLEX_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_assign_ref)
2450 #define TYPE_HAS_ABSTRACT_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_abstract_assign_ref)
2451 #define TYPE_HAS_COMPLEX_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_init_ref)
2453 /* Nonzero if TYPE has a trivial destructor. From [class.dtor]:
2455 A destructor is trivial if it is an implicitly declared
2458 - all of the direct base classes of its class have trivial
2461 - for all of the non-static data members of its class that are
2462 of class type (or array thereof), each such class has a
2463 trivial destructor. */
2464 #define TYPE_HAS_TRIVIAL_DESTRUCTOR(NODE) \
2465 (!TYPE_HAS_NONTRIVIAL_DESTRUCTOR (NODE))
2467 /* Nonzero for _TYPE node means that this type does not have a trivial
2468 destructor. Therefore, destroying an object of this type will
2469 involve a call to a destructor. This can apply to objects of
2470 ARRAY_TYPE is the type of the elements needs a destructor. */
2471 #define TYPE_HAS_NONTRIVIAL_DESTRUCTOR(NODE) \
2472 (TYPE_LANG_FLAG_4 (NODE))
2474 /* Nonzero for class type means that copy initialization of this type can use
2476 #define TYPE_HAS_TRIVIAL_INIT_REF(NODE) \
2477 (TYPE_HAS_INIT_REF (NODE) && ! TYPE_HAS_COMPLEX_INIT_REF (NODE))
2479 /* Nonzero for class type means that assignment of this type can use
2481 #define TYPE_HAS_TRIVIAL_ASSIGN_REF(NODE) \
2482 (TYPE_HAS_ASSIGN_REF (NODE) && ! TYPE_HAS_COMPLEX_ASSIGN_REF (NODE))
2484 /* Returns true if NODE is a pointer-to-data-member. */
2485 #define TYPE_PTRMEM_P(NODE) \
2486 (TREE_CODE (NODE) == OFFSET_TYPE)
2487 #define TYPE_PTR_P(NODE) \
2488 (TREE_CODE (NODE) == POINTER_TYPE)
2489 #define TYPE_PTROB_P(NODE) \
2490 (TYPE_PTR_P (NODE) \
2491 && TREE_CODE (TREE_TYPE (NODE)) != FUNCTION_TYPE \
2492 && TREE_CODE (TREE_TYPE (NODE)) != METHOD_TYPE \
2493 && TREE_CODE (TREE_TYPE (NODE)) != VOID_TYPE)
2494 #define TYPE_PTROBV_P(NODE) \
2495 (TYPE_PTR_P (NODE) && TREE_CODE (TREE_TYPE (NODE)) != FUNCTION_TYPE)
2496 #define TYPE_PTRFN_P(NODE) \
2497 (TREE_CODE (NODE) == POINTER_TYPE \
2498 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
2499 #define TYPE_REFFN_P(NODE) \
2500 (TREE_CODE (NODE) == REFERENCE_TYPE \
2501 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
2503 /* Nonzero for _TYPE node means that this type is a pointer to member
2505 #define TYPE_PTRMEMFUNC_P(NODE) \
2506 (TREE_CODE (NODE) == RECORD_TYPE \
2507 && TYPE_LANG_SPECIFIC (NODE) \
2508 && TYPE_PTRMEMFUNC_FLAG (NODE))
2510 #define TYPE_PTRMEMFUNC_FLAG(NODE) \
2511 (LANG_TYPE_CLASS_CHECK (NODE)->ptrmemfunc_flag)
2513 /* Returns true if NODE is a pointer-to-member. */
2514 #define TYPE_PTR_TO_MEMBER_P(NODE) \
2515 (TYPE_PTRMEM_P (NODE) || TYPE_PTRMEMFUNC_P (NODE))
2517 /* Indicates when overload resolution may resolve to a pointer to
2518 member function. [expr.unary.op]/3 */
2519 #define PTRMEM_OK_P(NODE) TREE_LANG_FLAG_0 (NODE)
2521 /* Get the POINTER_TYPE to the METHOD_TYPE associated with this
2522 pointer to member function. TYPE_PTRMEMFUNC_P _must_ be true,
2523 before using this macro. */
2524 #define TYPE_PTRMEMFUNC_FN_TYPE(NODE) \
2525 (TREE_TYPE (TYPE_FIELDS (NODE)))
2527 /* Returns `A' for a type like `int (A::*)(double)' */
2528 #define TYPE_PTRMEMFUNC_OBJECT_TYPE(NODE) \
2529 TYPE_METHOD_BASETYPE (TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
2531 /* These are use to manipulate the canonical RECORD_TYPE from the
2532 hashed POINTER_TYPE, and can only be used on the POINTER_TYPE. */
2533 #define TYPE_GET_PTRMEMFUNC_TYPE(NODE) \
2534 (TYPE_LANG_SPECIFIC (NODE) ? LANG_TYPE_PTRMEM_CHECK (NODE)->record : NULL)
2535 #define TYPE_SET_PTRMEMFUNC_TYPE(NODE, VALUE) \
2537 if (TYPE_LANG_SPECIFIC (NODE) == NULL) \
2539 TYPE_LANG_SPECIFIC (NODE) = \
2540 ggc_alloc_cleared (sizeof (struct lang_type_ptrmem)); \
2541 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.h.is_lang_type_class = 0; \
2543 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.record = (VALUE); \
2545 /* Returns the pfn field from a TYPE_PTRMEMFUNC_P. */
2546 #define PFN_FROM_PTRMEMFUNC(NODE) pfn_from_ptrmemfunc ((NODE))
2548 /* For a pointer-to-member type of the form `T X::*', this is `X'.
2549 For a type like `void (X::*)() const', this type is `X', not `const
2550 X'. To get at the `const X' you have to look at the
2551 TYPE_PTRMEM_POINTED_TO_TYPE; there, the first parameter will have
2553 #define TYPE_PTRMEM_CLASS_TYPE(NODE) \
2554 (TYPE_PTRMEM_P (NODE) \
2555 ? TYPE_OFFSET_BASETYPE (NODE) \
2556 : TYPE_PTRMEMFUNC_OBJECT_TYPE (NODE))
2558 /* For a pointer-to-member type of the form `T X::*', this is `T'. */
2559 #define TYPE_PTRMEM_POINTED_TO_TYPE(NODE) \
2560 (TYPE_PTRMEM_P (NODE) \
2561 ? TREE_TYPE (NODE) \
2562 : TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
2564 /* For a pointer-to-member constant `X::Y' this is the RECORD_TYPE for
2566 #define PTRMEM_CST_CLASS(NODE) \
2567 TYPE_PTRMEM_CLASS_TYPE (TREE_TYPE (PTRMEM_CST_CHECK (NODE)))
2569 /* For a pointer-to-member constant `X::Y' this is the _DECL for
2571 #define PTRMEM_CST_MEMBER(NODE) (((ptrmem_cst_t)PTRMEM_CST_CHECK (NODE))->member)
2573 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `extern' was
2574 specified in its declaration. This can also be set for an
2575 erroneously declared PARM_DECL. */
2576 #define DECL_THIS_EXTERN(NODE) \
2577 DECL_LANG_FLAG_2 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
2579 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `static' was
2580 specified in its declaration. This can also be set for an
2581 erroneously declared PARM_DECL. */
2582 #define DECL_THIS_STATIC(NODE) \
2583 DECL_LANG_FLAG_6 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
2585 /* Nonzero if TYPE is an anonymous union or struct type. We have to use a
2586 flag for this because "A union for which objects or pointers are
2587 declared is not an anonymous union" [class.union]. */
2588 #define ANON_AGGR_TYPE_P(NODE) \
2589 (CLASS_TYPE_P (NODE) && LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr)
2590 #define SET_ANON_AGGR_TYPE_P(NODE) \
2591 (LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr = 1)
2593 /* Nonzero if TYPE is an anonymous union type. */
2594 #define ANON_UNION_TYPE_P(NODE) \
2595 (TREE_CODE (NODE) == UNION_TYPE && ANON_AGGR_TYPE_P (NODE))
2597 #define UNKNOWN_TYPE LANG_TYPE
2599 /* Define fields and accessors for nodes representing declared names. */
2601 #define TYPE_WAS_ANONYMOUS(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->was_anonymous)
2603 /* C++: all of these are overloaded! These apply only to TYPE_DECLs. */
2605 /* The format of each node in the DECL_FRIENDLIST is as follows:
2607 The TREE_PURPOSE will be the name of a function, i.e., an
2608 IDENTIFIER_NODE. The TREE_VALUE will be itself a TREE_LIST, whose
2609 TREE_VALUEs are friends with the given name. */
2610 #define DECL_FRIENDLIST(NODE) (DECL_INITIAL (NODE))
2611 #define FRIEND_NAME(LIST) (TREE_PURPOSE (LIST))
2612 #define FRIEND_DECLS(LIST) (TREE_VALUE (LIST))
2614 /* The DECL_ACCESS, if non-NULL, is a TREE_LIST. The TREE_PURPOSE of
2615 each node is a type; the TREE_VALUE is the access granted for this
2616 DECL in that type. The DECL_ACCESS is set by access declarations.
2617 For example, if a member that would normally be public in a
2618 derived class is made protected, then the derived class and the
2619 protected_access_node will appear in the DECL_ACCESS for the node. */
2620 #define DECL_ACCESS(NODE) (LANG_DECL_U2_CHECK (NODE, 0)->access)
2622 /* Nonzero if the FUNCTION_DECL is a global constructor. */
2623 #define DECL_GLOBAL_CTOR_P(NODE) \
2624 (DECL_LANG_SPECIFIC (NODE)->decl_flags.global_ctor_p)
2626 /* Nonzero if the FUNCTION_DECL is a global destructor. */
2627 #define DECL_GLOBAL_DTOR_P(NODE) \
2628 (DECL_LANG_SPECIFIC (NODE)->decl_flags.global_dtor_p)
2630 /* Accessor macros for C++ template decl nodes. */
2632 /* The DECL_TEMPLATE_PARMS are a list. The TREE_PURPOSE of each node
2633 is a INT_CST whose TREE_INT_CST_LOW indicates the level of the
2634 template parameters, with 1 being the outermost set of template
2635 parameters. The TREE_VALUE is a vector, whose elements are the
2636 template parameters at each level. Each element in the vector is a
2637 TREE_LIST, whose TREE_VALUE is a PARM_DECL (if the parameter is a
2638 non-type parameter), or a TYPE_DECL (if the parameter is a type
2639 parameter). The TREE_PURPOSE is the default value, if any. The
2640 TEMPLATE_PARM_INDEX for the parameter is available as the
2641 DECL_INITIAL (for a PARM_DECL) or as the TREE_TYPE (for a
2643 #define DECL_TEMPLATE_PARMS(NODE) DECL_ARGUMENTS (NODE)
2644 #define DECL_INNERMOST_TEMPLATE_PARMS(NODE) \
2645 INNERMOST_TEMPLATE_PARMS (DECL_TEMPLATE_PARMS (NODE))
2646 #define DECL_NTPARMS(NODE) \
2647 TREE_VEC_LENGTH (DECL_INNERMOST_TEMPLATE_PARMS (NODE))
2648 /* For function, method, class-data templates. */
2649 #define DECL_TEMPLATE_RESULT(NODE) DECL_RESULT_FLD (NODE)
2650 /* For a static member variable template, the
2651 DECL_TEMPLATE_INSTANTIATIONS list contains the explicitly and
2652 implicitly generated instantiations of the variable. There are no
2653 partial instantiations of static member variables, so all of these
2654 will be full instantiations.
2656 For a class template the DECL_TEMPLATE_INSTANTIATIONS lists holds
2657 all instantiations and specializations of the class type, including
2658 partial instantiations and partial specializations.
2660 In both cases, the TREE_PURPOSE of each node contains the arguments
2661 used; the TREE_VALUE contains the generated variable. The template
2662 arguments are always complete. For example, given:
2664 template <class T> struct S1 {
2665 template <class U> struct S2 {};
2666 template <class U> struct S2<U*> {};
2669 the record for the partial specialization will contain, as its
2670 argument list, { {T}, {U*} }, and will be on the
2671 DECL_TEMPLATE_INSTANTIATIONS list for `template <class T> template
2672 <class U> struct S1<T>::S2'.
2674 This list is not used for function templates. */
2675 #define DECL_TEMPLATE_INSTANTIATIONS(NODE) DECL_VINDEX (NODE)
2676 /* For a function template, the DECL_TEMPLATE_SPECIALIZATIONS lists
2677 contains all instantiations and specializations of the function,
2678 including partial instantiations. For a partial instantiation
2679 which is a specialization, this list holds only full
2680 specializations of the template that are instantiations of the
2681 partial instantiation. For example, given:
2683 template <class T> struct S {
2684 template <class U> void f(U);
2685 template <> void f(T);
2688 the `S<int>::f<int>(int)' function will appear on the
2689 DECL_TEMPLATE_SPECIALIZATIONS list for both `template <class T>
2690 template <class U> void S<T>::f(U)' and `template <class T> void
2691 S<int>::f(T)'. In the latter case, however, it will have only the
2692 innermost set of arguments (T, in this case). The DECL_TI_TEMPLATE
2693 for the function declaration will point at the specialization, not
2694 the fully general template.
2696 For a class template, this list contains the partial
2697 specializations of this template. (Full specializations are not
2698 recorded on this list.) The TREE_PURPOSE holds the innermost
2699 arguments used in the partial specialization (e.g., for `template
2700 <class T> struct S<T*, int>' this will be `T*'.) The TREE_VALUE
2701 holds the innermost template parameters for the specialization
2702 (e.g., `T' in the example above.) The TREE_TYPE is the _TYPE node
2703 for the partial specialization.
2705 This list is not used for static variable templates. */
2706 #define DECL_TEMPLATE_SPECIALIZATIONS(NODE) DECL_SIZE (NODE)
2708 /* Nonzero for a DECL which is actually a template parameter. */
2709 #define DECL_TEMPLATE_PARM_P(NODE) \
2710 (DECL_LANG_FLAG_0 (NODE) \
2711 && (TREE_CODE (NODE) == CONST_DECL \
2712 || TREE_CODE (NODE) == PARM_DECL \
2713 || TREE_CODE (NODE) == TYPE_DECL \
2714 || TREE_CODE (NODE) == TEMPLATE_DECL))
2716 /* Mark NODE as a template parameter. */
2717 #define SET_DECL_TEMPLATE_PARM_P(NODE) \
2718 (DECL_LANG_FLAG_0 (NODE) = 1)
2720 /* Nonzero if NODE is a template template parameter. */
2721 #define DECL_TEMPLATE_TEMPLATE_PARM_P(NODE) \
2722 (TREE_CODE (NODE) == TEMPLATE_DECL && DECL_TEMPLATE_PARM_P (NODE))
2724 #define DECL_FUNCTION_TEMPLATE_P(NODE) \
2725 (TREE_CODE (NODE) == TEMPLATE_DECL \
2726 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == FUNCTION_DECL)
2728 /* Nonzero for a DECL that represents a template class. */
2729 #define DECL_CLASS_TEMPLATE_P(NODE) \
2730 (TREE_CODE (NODE) == TEMPLATE_DECL \
2731 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == TYPE_DECL \
2732 && !DECL_TEMPLATE_TEMPLATE_PARM_P (NODE))
2734 /* Nonzero if NODE which declares a type. */
2735 #define DECL_DECLARES_TYPE_P(NODE) \
2736 (TREE_CODE (NODE) == TYPE_DECL || DECL_CLASS_TEMPLATE_P (NODE))
2738 /* Nonzero if NODE is the typedef implicitly generated for a type when
2739 the type is declared. In C++, `struct S {};' is roughly
2740 equivalent to `struct S {}; typedef struct S S;' in C.
2741 DECL_IMPLICIT_TYPEDEF_P will hold for the typedef indicated in this
2742 example. In C++, there is a second implicit typedef for each
2743 class, in the scope of `S' itself, so that you can say `S::S'.
2744 DECL_SELF_REFERENCE_P will hold for that second typedef. */
2745 #define DECL_IMPLICIT_TYPEDEF_P(NODE) \
2746 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_2 (NODE))
2747 #define SET_DECL_IMPLICIT_TYPEDEF_P(NODE) \
2748 (DECL_LANG_FLAG_2 (NODE) = 1)
2749 #define DECL_SELF_REFERENCE_P(NODE) \
2750 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_4 (NODE))
2751 #define SET_DECL_SELF_REFERENCE_P(NODE) \
2752 (DECL_LANG_FLAG_4 (NODE) = 1)
2754 /* A `primary' template is one that has its own template header. A
2755 member function of a class template is a template, but not primary.
2756 A member template is primary. Friend templates are primary, too. */
2758 /* Returns the primary template corresponding to these parameters. */
2759 #define DECL_PRIMARY_TEMPLATE(NODE) \
2760 (TREE_TYPE (DECL_INNERMOST_TEMPLATE_PARMS (NODE)))
2762 /* Returns nonzero if NODE is a primary template. */
2763 #define PRIMARY_TEMPLATE_P(NODE) (DECL_PRIMARY_TEMPLATE (NODE) == (NODE))
2765 #define CLASSTYPE_TEMPLATE_LEVEL(NODE) \
2766 (TREE_INT_CST_LOW (TREE_PURPOSE (CLASSTYPE_TI_TEMPLATE (NODE))))
2768 /* Indicates whether or not (and how) a template was expanded for this
2769 FUNCTION_DECL or VAR_DECL.
2770 0=normal declaration, e.g. int min (int, int);
2771 1=implicit template instantiation
2772 2=explicit template specialization, e.g. int min<int> (int, int);
2773 3=explicit template instantiation, e.g. template int min<int> (int, int); */
2774 #define DECL_USE_TEMPLATE(NODE) (DECL_LANG_SPECIFIC (NODE)->decl_flags.use_template)
2776 #define DECL_TEMPLATE_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) & 1)
2777 #define CLASSTYPE_TEMPLATE_INSTANTIATION(NODE) \
2778 (CLASSTYPE_USE_TEMPLATE (NODE) & 1)
2780 #define DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) == 2)
2781 #define SET_DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) = 2)
2782 #define CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
2783 (CLASSTYPE_USE_TEMPLATE (NODE) == 2)
2784 #define SET_CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
2785 (CLASSTYPE_USE_TEMPLATE (NODE) = 2)
2787 #define DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 1)
2788 #define SET_DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 1)
2789 #define CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
2790 (CLASSTYPE_USE_TEMPLATE (NODE) == 1)
2791 #define SET_CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
2792 (CLASSTYPE_USE_TEMPLATE (NODE) = 1)
2794 #define DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 3)
2795 #define SET_DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 3)
2796 #define CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
2797 (CLASSTYPE_USE_TEMPLATE (NODE) == 3)
2798 #define SET_CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
2799 (CLASSTYPE_USE_TEMPLATE (NODE) = 3)
2801 /* Nonzero if DECL is a friend function which is an instantiation
2802 from the point of view of the compiler, but not from the point of
2803 view of the language. For example given:
2804 template <class T> struct S { friend void f(T) {}; };
2805 the declaration of `void f(int)' generated when S<int> is
2806 instantiated will not be a DECL_TEMPLATE_INSTANTIATION, but will be
2807 a DECL_FRIEND_PSUEDO_TEMPLATE_INSTANTIATION. */
2808 #define DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION(DECL) \
2809 (DECL_TEMPLATE_INFO (DECL) && !DECL_USE_TEMPLATE (DECL))
2811 /* Nonzero iff we are currently processing a declaration for an
2812 entity with its own template parameter list, and which is not a
2813 full specialization. */
2814 #define PROCESSING_REAL_TEMPLATE_DECL_P() \
2815 (processing_template_decl > template_class_depth (current_scope ()))
2817 /* Nonzero if this VAR_DECL or FUNCTION_DECL has already been
2818 instantiated, i.e. its definition has been generated from the
2819 pattern given in the the template. */
2820 #define DECL_TEMPLATE_INSTANTIATED(NODE) \
2821 DECL_LANG_FLAG_1 (VAR_OR_FUNCTION_DECL_CHECK (NODE))
2823 /* We know what we're doing with this decl now. */
2824 #define DECL_INTERFACE_KNOWN(NODE) DECL_LANG_FLAG_5 (NODE)
2826 /* DECL_EXTERNAL must be set on a decl until the decl is actually emitted,
2827 so that assemble_external will work properly. So we have this flag to
2828 tell us whether the decl is really not external. */
2829 #define DECL_NOT_REALLY_EXTERN(NODE) \
2830 (DECL_LANG_SPECIFIC (NODE)->decl_flags.not_really_extern)
2832 #define DECL_REALLY_EXTERN(NODE) \
2833 (DECL_EXTERNAL (NODE) && ! DECL_NOT_REALLY_EXTERN (NODE))
2835 /* A thunk is a stub function.
2837 A thunk is an alternate entry point for an ordinary FUNCTION_DECL.
2838 The address of the ordinary FUNCTION_DECL is given by the
2839 DECL_INITIAL, which is always an ADDR_EXPR whose operand is a
2840 FUNCTION_DECL. The job of the thunk is to either adjust the this
2841 pointer before transferring control to the FUNCTION_DECL, or call
2842 FUNCTION_DECL and then adjust the result value. Note, the result
2843 pointer adjusting thunk must perform a call to the thunked
2844 function, (or be implemented via passing some invisible parameter
2845 to the thunked function, which is modified to perform the
2846 adjustment just before returning).
2848 A thunk may perform either, or both, of the following operations:
2850 o Adjust the this or result pointer by a constant offset.
2851 o Adjust the this or result pointer by looking up a vcall or vbase offset
2854 A this pointer adjusting thunk converts from a base to a derived
2855 class, and hence adds the offsets. A result pointer adjusting thunk
2856 converts from a derived class to a base, and hence subtracts the
2857 offsets. If both operations are performed, then the constant
2858 adjustment is performed first for this pointer adjustment and last
2859 for the result pointer adjustment.
2861 The constant adjustment is given by THUNK_FIXED_OFFSET. If the
2862 vcall or vbase offset is required, the index into the vtable is given by
2863 THUNK_VIRTUAL_OFFSET.
2865 Due to ordering constraints in class layout, it is possible to have
2866 equivalent covariant thunks. THUNK_ALIAS_P and THUNK_ALIAS are used
2869 /* An integer indicating how many bytes should be subtracted from the
2870 this or result pointer when this function is called. */
2871 #define THUNK_FIXED_OFFSET(DECL) \
2872 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL))->u.f.fixed_offset)
2874 /* A tree indicating how to perform the virtual adjustment. For a this
2875 adjusting thunk it is the number of bytes to be added to the vtable
2876 to find the vcall offset. For a result adjusting thunk, it is the
2877 binfo of the relevant virtual base. If NULL, then there is no
2878 virtual adjust. (The vptr is always located at offset zero from
2879 the this or result pointer.) (If the covariant type is within the
2880 class hierarchy being laid out, the vbase index is not yet known
2881 at the point we need to create the thunks, hence the need to use
2884 #define THUNK_VIRTUAL_OFFSET(DECL) \
2885 (LANG_DECL_U2_CHECK (VAR_OR_FUNCTION_DECL_CHECK (DECL), 0)->virtual_offset)
2887 /* A thunk which is equivalent to another thunk. */
2888 #define THUNK_ALIAS_P(DECL) \
2889 (THUNK_VIRTUAL_OFFSET (DECL) && DECL_P (THUNK_VIRTUAL_OFFSET (DECL)))
2891 /* When THUNK_ALIAS_P is true, this indicates the thunk which is
2893 #define THUNK_ALIAS(DECL) THUNK_VIRTUAL_OFFSET (DECL)
2895 /* For thunk NODE, this is the FUNCTION_DECL thunked to. */
2896 #define THUNK_TARGET(NODE) \
2897 (DECL_LANG_SPECIFIC (NODE)->u.f.befriending_classes)
2899 /* These macros provide convenient access to the various _STMT nodes
2900 created when parsing template declarations. */
2901 #define TRY_STMTS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 0)
2902 #define TRY_HANDLERS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 1)
2904 #define EH_SPEC_STMTS(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 0)
2905 #define EH_SPEC_RAISES(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 1)
2907 #define USING_STMT_NAMESPACE(NODE) TREE_OPERAND (USING_STMT_CHECK (NODE), 0)
2909 /* Nonzero if this try block is a function try block. */
2910 #define FN_TRY_BLOCK_P(NODE) TREE_LANG_FLAG_3 (TRY_BLOCK_CHECK (NODE))
2911 #define HANDLER_PARMS(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 0)
2912 #define HANDLER_BODY(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 1)
2913 #define HANDLER_TYPE(NODE) TREE_TYPE (HANDLER_CHECK (NODE))
2915 /* The parameters for a call-declarator. */
2916 #define CALL_DECLARATOR_PARMS(NODE) \
2917 (TREE_PURPOSE (TREE_OPERAND (NODE, 1)))
2919 /* The cv-qualifiers for a call-declarator. */
2920 #define CALL_DECLARATOR_QUALS(NODE) \
2921 (TREE_VALUE (TREE_OPERAND (NODE, 1)))
2923 /* The exception-specification for a call-declarator. */
2924 #define CALL_DECLARATOR_EXCEPTION_SPEC(NODE) \
2927 /* An enumeration of the kind of tags that C++ accepts. */
2929 none_type = 0, /* Not a tag type. */
2930 record_type, /* "struct" types. */
2931 class_type, /* "class" types. */
2932 union_type, /* "union" types. */
2933 enum_type, /* "enum" types. */
2934 typename_type /* "typename" types. */
2937 /* The various kinds of lvalues we distinguish. */
2938 typedef enum cp_lvalue_kind {
2939 clk_none = 0, /* Things that are not an lvalue. */
2940 clk_ordinary = 1, /* An ordinary lvalue. */
2941 clk_class = 2, /* An rvalue of class-type. */
2942 clk_bitfield = 4, /* An lvalue for a bit-field. */
2943 clk_packed = 8 /* An lvalue for a packed field. */
2946 /* Various kinds of template specialization, instantiation, etc. */
2947 typedef enum tmpl_spec_kind {
2948 tsk_none, /* Not a template at all. */
2949 tsk_invalid_member_spec, /* An explicit member template
2950 specialization, but the enclosing
2951 classes have not all been explicitly
2953 tsk_invalid_expl_inst, /* An explicit instantiation containing
2954 template parameter lists. */
2955 tsk_excessive_parms, /* A template declaration with too many
2956 template parameter lists. */
2957 tsk_insufficient_parms, /* A template declaration with too few
2959 tsk_template, /* A template declaration. */
2960 tsk_expl_spec, /* An explicit specialization. */
2961 tsk_expl_inst /* An explicit instantiation. */
2964 /* The various kinds of access. BINFO_ACCESS depends on these being
2965 two bit quantities. The numerical values are important; they are
2966 used to initialize RTTI data structures, so changing them changes
2968 typedef enum access_kind {
2969 ak_none = 0, /* Inaccessible. */
2970 ak_public = 1, /* Accessible, as a `public' thing. */
2971 ak_protected = 2, /* Accessible, as a `protected' thing. */
2972 ak_private = 3 /* Accessible, as a `private' thing. */
2975 /* The various kinds of special functions. If you add to this list,
2976 you should update special_function_p as well. */
2977 typedef enum special_function_kind {
2978 sfk_none = 0, /* Not a special function. This enumeral
2979 must have value zero; see
2980 special_function_p. */
2981 sfk_constructor, /* A constructor. */
2982 sfk_copy_constructor, /* A copy constructor. */
2983 sfk_assignment_operator, /* An assignment operator. */
2984 sfk_destructor, /* A destructor. */
2985 sfk_complete_destructor, /* A destructor for complete objects. */
2986 sfk_base_destructor, /* A destructor for base subobjects. */
2987 sfk_deleting_destructor, /* A destructor for complete objects that
2988 deletes the object after it has been
2990 sfk_conversion /* A conversion operator. */
2991 } special_function_kind;
2993 /* The various kinds of linkage. From [basic.link],
2995 A name is said to have linkage when it might denote the same
2996 object, reference, function, type, template, namespace or value
2997 as a name introduced in another scope:
2999 -- When a name has external linkage, the entity it denotes can
3000 be referred to from scopes of other translation units or from
3001 other scopes of the same translation unit.
3003 -- When a name has internal linkage, the entity it denotes can
3004 be referred to by names from other scopes in the same
3007 -- When a name has no linkage, the entity it denotes cannot be
3008 referred to by names from other scopes. */
3010 typedef enum linkage_kind {
3011 lk_none, /* No linkage. */
3012 lk_internal, /* Internal linkage. */
3013 lk_external /* External linkage. */
3016 /* Bitmask flags to control type substitution. */
3017 typedef enum tsubst_flags_t {
3018 tf_none = 0, /* nothing special */
3019 tf_error = 1 << 0, /* give error messages */
3020 tf_warning = 1 << 1, /* give warnings too */
3021 tf_ignore_bad_quals = 1 << 2, /* ignore bad cvr qualifiers */
3022 tf_keep_type_decl = 1 << 3, /* retain typedef type decls
3023 (make_typename_type use) */
3024 tf_ptrmem_ok = 1 << 4, /* pointers to member ok (internal
3025 instantiate_type use) */
3026 tf_user = 1 << 5, /* found template must be a user template
3027 (lookup_template_class use) */
3028 tf_stmt_expr_cmpd = 1 << 6, /* tsubsting the compound statement of
3029 a statement expr. */
3030 tf_stmt_expr_body = 1 << 7, /* tsubsting the statements in the
3031 body of the compound statement of a
3033 tf_conv = 1 << 8 /* We are determining what kind of
3034 conversion might be permissible,
3035 not actually performing the
3039 /* The kind of checking we can do looking in a class hierarchy. */
3040 typedef enum base_access {
3041 ba_any = 0, /* Do not check access, allow an ambiguous base,
3042 prefer a non-virtual base */
3043 ba_ignore = 1, /* Do not check access */
3044 ba_check = 2, /* Check access */
3045 ba_not_special = 3, /* Do not consider special privilege
3046 current_class_type might give. */
3047 ba_quiet = 4 /* Do not issue error messages (bit mask). */
3050 /* The various kinds of access check during parsing. */
3051 typedef enum deferring_kind {
3052 dk_no_deferred = 0, /* Check access immediately */
3053 dk_deferred = 1, /* Deferred check */
3054 dk_no_check = 2 /* No access check */
3057 /* The kind of base we can find, looking in a class hierarchy.
3058 Values <0 indicate we failed. */
3059 typedef enum base_kind {
3060 bk_inaccessible = -3, /* The base is inaccessible */
3061 bk_ambig = -2, /* The base is ambiguous */
3062 bk_not_base = -1, /* It is not a base */
3063 bk_same_type = 0, /* It is the same type */
3064 bk_proper_base = 1, /* It is a proper base */
3065 bk_via_virtual = 2 /* It is a proper base, but via a virtual
3066 path. This might not be the canonical
3070 /* Set by add_implicitly_declared_members() to keep those members from
3071 being flagged as deprecated or reported as using deprecated
3073 extern int adding_implicit_members;
3076 /* A node that is a list (length 1) of error_mark_nodes. */
3077 extern GTY(()) tree error_mark_list;
3079 /* Node for "pointer to (virtual) function".
3080 This may be distinct from ptr_type_node so gdb can distinguish them. */
3081 #define vfunc_ptr_type_node vtable_entry_type
3084 /* For building calls to `delete'. */
3085 extern GTY(()) tree integer_two_node;
3086 extern GTY(()) tree integer_three_node;
3088 extern GTY(()) tree anonymous_namespace_name;
3090 /* The number of function bodies which we are currently processing.
3091 (Zero if we are at namespace scope, one inside the body of a
3092 function, two inside the body of a function in a local class, etc.) */
3093 extern int function_depth;
3095 typedef struct deferred_access GTY(())
3097 /* A TREE_LIST representing name-lookups for which we have deferred
3098 checking access controls. We cannot check the accessibility of
3099 names used in a decl-specifier-seq until we know what is being
3100 declared because code like:
3107 A::B* A::f() { return 0; }
3109 is valid, even though `A::B' is not generally accessible.
3111 The TREE_PURPOSE of each node is the scope used to qualify the
3112 name being looked up; the TREE_VALUE is the DECL to which the
3113 name was resolved. */
3114 tree deferred_access_checks;
3115 /* The current mode of access checks. */
3116 enum deferring_kind deferring_access_checks_kind;
3117 /* The next deferred access data in stack or linked-list. */
3118 struct deferred_access *next;
3123 /* These values are used for the `STRICT' parameter to type_unification and
3124 fn_type_unification. Their meanings are described with the
3125 documentation for fn_type_unification. */
3127 typedef enum unification_kind_t {
3132 } unification_kind_t;
3134 /* Macros for operating on a template instantiation level node, represented
3135 by an EXPR_WITH_FILE_LOCATION. */
3137 #define TINST_DECL(NODE) EXPR_WFL_NODE (NODE)
3138 #define TINST_LINE(NODE) EXPR_WFL_LINENO (NODE)
3139 #define TINST_FILE(NODE) EXPR_WFL_FILENAME (NODE)
3143 extern int current_class_depth;
3145 /* An array of all local classes present in this translation unit, in
3146 declaration order. */
3147 extern GTY(()) varray_type local_classes;
3149 /* Here's where we control how name mangling takes place. */
3151 /* Cannot use '$' up front, because this confuses gdb
3152 (names beginning with '$' are gdb-local identifiers).
3154 Note that all forms in which the '$' is significant are long enough
3155 for direct indexing (meaning that if we know there is a '$'
3156 at a particular location, we can index into the string at
3157 any other location that provides distinguishing characters). */
3159 /* Define NO_DOLLAR_IN_LABEL in your favorite tm file if your assembler
3160 doesn't allow '$' in symbol names. */
3161 #ifndef NO_DOLLAR_IN_LABEL
3165 #define VPTR_NAME "$v"
3166 #define THROW_NAME "$eh_throw"
3167 #define AUTO_VTABLE_NAME "__vtbl$me__"
3168 #define AUTO_TEMP_NAME "_$tmp_"
3169 #define AUTO_TEMP_FORMAT "_$tmp_%d"
3170 #define VTABLE_BASE "$vb"
3171 #define VTABLE_NAME_PREFIX "__vt_"
3172 #define VFIELD_BASE "$vf"
3173 #define VFIELD_NAME "_vptr$"
3174 #define VFIELD_NAME_FORMAT "_vptr$%s"
3175 #define STATIC_NAME_FORMAT "_%s$%s"
3176 #define ANON_AGGRNAME_FORMAT "$_%d"
3178 #else /* NO_DOLLAR_IN_LABEL */
3180 #ifndef NO_DOT_IN_LABEL
3184 #define VPTR_NAME ".v"
3185 #define THROW_NAME ".eh_throw"
3186 #define AUTO_VTABLE_NAME "__vtbl.me__"
3187 #define AUTO_TEMP_NAME "_.tmp_"
3188 #define AUTO_TEMP_FORMAT "_.tmp_%d"
3189 #define VTABLE_BASE ".vb"
3190 #define VTABLE_NAME_PREFIX "__vt_"
3191 #define VFIELD_BASE ".vf"
3192 #define VFIELD_NAME "_vptr."
3193 #define VFIELD_NAME_FORMAT "_vptr.%s"
3194 #define STATIC_NAME_FORMAT "_%s.%s"
3196 #define ANON_AGGRNAME_FORMAT "._%d"
3198 #else /* NO_DOT_IN_LABEL */
3200 #define VPTR_NAME "__vptr"
3201 #define VPTR_NAME_P(ID_NODE) \
3202 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VPTR_NAME, sizeof (VPTR_NAME) - 1))
3203 #define THROW_NAME "__eh_throw"
3204 #define IN_CHARGE_NAME "__in_chrg"
3205 #define AUTO_VTABLE_NAME "__vtbl_me__"
3206 #define AUTO_TEMP_NAME "__tmp_"
3207 #define TEMP_NAME_P(ID_NODE) \
3208 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, \
3209 sizeof (AUTO_TEMP_NAME) - 1))
3210 #define AUTO_TEMP_FORMAT "__tmp_%d"
3211 #define VTABLE_BASE "__vtb"
3212 #define VTABLE_NAME "__vt_"
3213 #define VTABLE_NAME_PREFIX "__vt_"
3214 #define VTABLE_NAME_P(ID_NODE) \
3215 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VTABLE_NAME, \
3216 sizeof (VTABLE_NAME) - 1))
3217 #define VFIELD_BASE "__vfb"
3218 #define VFIELD_NAME "__vptr_"
3219 #define VFIELD_NAME_P(ID_NODE) \
3220 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, \
3221 sizeof (VFIELD_NAME) - 1))
3222 #define VFIELD_NAME_FORMAT "__vptr_%s"
3223 #define STATIC_NAME_FORMAT "__static_%s_%s"
3225 #define ANON_AGGRNAME_PREFIX "__anon_"
3226 #define ANON_AGGRNAME_P(ID_NODE) \
3227 (!strncmp (IDENTIFIER_POINTER (ID_NODE), ANON_AGGRNAME_PREFIX, \
3228 sizeof (ANON_AGGRNAME_PREFIX) - 1))
3229 #define ANON_AGGRNAME_FORMAT "__anon_%d"
3231 #endif /* NO_DOT_IN_LABEL */
3232 #endif /* NO_DOLLAR_IN_LABEL */
3234 #define THIS_NAME "this"
3235 #define CTOR_NAME "__ct"
3236 #define DTOR_NAME "__dt"
3238 #define IN_CHARGE_NAME "__in_chrg"
3240 #define VTBL_PTR_TYPE "__vtbl_ptr_type"
3241 #define VTABLE_DELTA_NAME "__delta"
3242 #define VTABLE_PFN_NAME "__pfn"
3244 #define EXCEPTION_CLEANUP_NAME "exception cleanup"
3246 #if !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL)
3248 #define VPTR_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[0] == JOINER \
3249 && IDENTIFIER_POINTER (ID_NODE)[1] == 'v')
3251 #define VTABLE_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == 'v' \
3252 && IDENTIFIER_POINTER (ID_NODE)[2] == 't' \
3253 && IDENTIFIER_POINTER (ID_NODE)[3] == JOINER)
3255 #define TEMP_NAME_P(ID_NODE) \
3256 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, sizeof (AUTO_TEMP_NAME)-1))
3257 #define VFIELD_NAME_P(ID_NODE) \
3258 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, sizeof(VFIELD_NAME)-1))
3260 /* For anonymous aggregate types, we need some sort of name to
3261 hold on to. In practice, this should not appear, but it should
3262 not be harmful if it does. */
3263 #define ANON_AGGRNAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[0] == JOINER \
3264 && IDENTIFIER_POINTER (ID_NODE)[1] == '_')
3265 #endif /* !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) */
3267 /* Returns nonzero iff NODE is a declaration for the global function
3269 #define DECL_MAIN_P(NODE) \
3270 (DECL_EXTERN_C_FUNCTION_P (NODE) \
3271 && DECL_NAME (NODE) != NULL_TREE \
3272 && MAIN_NAME_P (DECL_NAME (NODE)))
3275 /* Nonzero if we're done parsing and into end-of-file activities. */
3279 /* A list of namespace-scope objects which have constructors or
3280 destructors which reside in the global scope. The decl is stored
3281 in the TREE_VALUE slot and the initializer is stored in the
3282 TREE_PURPOSE slot. */
3283 extern GTY(()) tree static_aggregates;
3285 /* Functions called along with real static constructors and destructors. */
3287 extern GTY(()) tree static_ctors;
3288 extern GTY(()) tree static_dtors;
3290 enum overload_flags { NO_SPECIAL = 0, DTOR_FLAG, OP_FLAG, TYPENAME_FLAG };
3292 /* Some macros for char-based bitfields. */
3293 #define B_SET(A,X) ((A)[(X)>>3] |= (1 << ((X)&7)))
3294 #define B_CLR(A,X) ((A)[(X)>>3] &= ~(1 << ((X)&7)))
3295 #define B_TST(A,X) ((A)[(X)>>3] & (1 << ((X)&7)))
3297 /* These are uses as bits in flags passed to build_method_call
3298 to control its error reporting behavior.
3300 LOOKUP_PROTECT means flag access violations.
3301 LOOKUP_COMPLAIN mean complain if no suitable member function
3302 matching the arguments is found.
3303 LOOKUP_NORMAL is just a combination of these two.
3304 LOOKUP_NONVIRTUAL means make a direct call to the member function found
3305 LOOKUP_GLOBAL means search through the space of overloaded functions,
3306 as well as the space of member functions.
3307 LOOKUP_ONLYCONVERTING means that non-conversion constructors are not tried.
3308 DIRECT_BIND means that if a temporary is created, it should be created so
3309 that it lives as long as the current variable bindings; otherwise it
3310 only lives until the end of the complete-expression. It also forces
3311 direct-initialization in cases where other parts of the compiler have
3312 already generated a temporary, such as reference initialization and the
3314 LOOKUP_SPECULATIVELY means return NULL_TREE if we cannot find what we are
3315 after. Note, LOOKUP_COMPLAIN is checked and error messages printed
3316 before LOOKUP_SPECULATIVELY is checked.
3317 LOOKUP_NO_CONVERSION means that user-defined conversions are not
3318 permitted. Built-in conversions are permitted.
3319 LOOKUP_DESTRUCTOR means explicit call to destructor.
3320 LOOKUP_NO_TEMP_BIND means temporaries will not be bound to references.
3322 These are used in global lookup to support elaborated types and
3325 LOOKUP_PREFER_TYPES means not to accept objects, and possibly namespaces.
3326 LOOKUP_PREFER_NAMESPACES means not to accept objects, and possibly types.
3327 LOOKUP_PREFER_BOTH means class-or-namespace-name. */
3329 #define LOOKUP_PROTECT (1)
3330 #define LOOKUP_COMPLAIN (2)
3331 #define LOOKUP_NORMAL (3)
3332 #define LOOKUP_NONVIRTUAL (8)
3333 #define LOOKUP_GLOBAL (16)
3334 #define LOOKUP_SPECULATIVELY (64)
3335 #define LOOKUP_ONLYCONVERTING (128)
3336 #define DIRECT_BIND (256)
3337 #define LOOKUP_NO_CONVERSION (512)
3338 #define LOOKUP_DESTRUCTOR (512)
3339 #define LOOKUP_NO_TEMP_BIND (1024)
3340 #define LOOKUP_PREFER_TYPES (2048)
3341 #define LOOKUP_PREFER_NAMESPACES (4096)
3342 #define LOOKUP_PREFER_BOTH (6144)
3344 #define LOOKUP_NAMESPACES_ONLY(F) \
3345 (((F) & LOOKUP_PREFER_NAMESPACES) && !((F) & LOOKUP_PREFER_TYPES))
3346 #define LOOKUP_TYPES_ONLY(F) \
3347 (!((F) & LOOKUP_PREFER_NAMESPACES) && ((F) & LOOKUP_PREFER_TYPES))
3348 #define LOOKUP_QUALIFIERS_ONLY(F) ((F) & LOOKUP_PREFER_BOTH)
3351 /* These flags are used by the conversion code.
3352 CONV_IMPLICIT : Perform implicit conversions (standard and user-defined).
3353 CONV_STATIC : Perform the explicit conversions for static_cast.
3354 CONV_CONST : Perform the explicit conversions for const_cast.
3355 CONV_REINTERPRET: Perform the explicit conversions for reinterpret_cast.
3356 CONV_PRIVATE : Perform upcasts to private bases.
3357 CONV_FORCE_TEMP : Require a new temporary when converting to the same
3360 #define CONV_IMPLICIT 1
3361 #define CONV_STATIC 2
3362 #define CONV_CONST 4
3363 #define CONV_REINTERPRET 8
3364 #define CONV_PRIVATE 16
3365 /* #define CONV_NONCONVERTING 32 */
3366 #define CONV_FORCE_TEMP 64
3367 #define CONV_STATIC_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_FORCE_TEMP)
3368 #define CONV_OLD_CONVERT (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
3370 #define CONV_C_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
3371 | CONV_REINTERPRET | CONV_PRIVATE | CONV_FORCE_TEMP)
3373 /* Used by build_expr_type_conversion to indicate which types are
3374 acceptable as arguments to the expression under consideration. */
3376 #define WANT_INT 1 /* integer types, including bool */
3377 #define WANT_FLOAT 2 /* floating point types */
3378 #define WANT_ENUM 4 /* enumerated types */
3379 #define WANT_POINTER 8 /* pointer types */
3380 #define WANT_NULL 16 /* null pointer constant */
3381 #define WANT_ARITH (WANT_INT | WANT_FLOAT)
3383 /* Used with comptypes, and related functions, to guide type
3386 #define COMPARE_STRICT 0 /* Just check if the types are the
3388 #define COMPARE_BASE 1 /* Check to see if the second type is
3389 derived from the first. */
3390 #define COMPARE_DERIVED 2 /* Like COMPARE_BASE, but in
3392 #define COMPARE_REDECLARATION 4 /* The comparison is being done when
3393 another declaration of an existing
3396 /* Used with push_overloaded_decl. */
3397 #define PUSH_GLOBAL 0 /* Push the DECL into namespace scope,
3398 regardless of the current scope. */
3399 #define PUSH_LOCAL 1 /* Push the DECL into the current
3401 #define PUSH_USING 2 /* We are pushing this DECL as the
3402 result of a using declaration. */
3404 /* Used with start function. */
3405 #define SF_DEFAULT 0 /* No flags. */
3406 #define SF_PRE_PARSED 1 /* The function declaration has
3407 already been parsed. */
3408 #define SF_INCLASS_INLINE 2 /* The function is an inline, defined
3409 in the class body. */
3411 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, or if TYPE2
3412 is derived from TYPE1, or if TYPE2 is a pointer (reference) to a
3413 class derived from the type pointed to (referred to) by TYPE1. */
3414 #define same_or_base_type_p(TYPE1, TYPE2) \
3415 comptypes ((TYPE1), (TYPE2), COMPARE_BASE)
3417 /* These macros are used to access a TEMPLATE_PARM_INDEX. */
3418 #define TEMPLATE_PARM_INDEX_CAST(NODE) \
3419 ((template_parm_index*)TEMPLATE_PARM_INDEX_CHECK (NODE))
3420 #define TEMPLATE_PARM_IDX(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->index)
3421 #define TEMPLATE_PARM_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->level)
3422 #define TEMPLATE_PARM_DESCENDANTS(NODE) (TREE_CHAIN (NODE))
3423 #define TEMPLATE_PARM_ORIG_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->orig_level)
3424 #define TEMPLATE_PARM_DECL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->decl)
3426 /* These macros are for accessing the fields of TEMPLATE_TYPE_PARM,
3427 TEMPLATE_TEMPLATE_PARM and BOUND_TEMPLATE_TEMPLATE_PARM nodes. */
3428 #define TEMPLATE_TYPE_PARM_INDEX(NODE) (TYPE_FIELDS (NODE))
3429 #define TEMPLATE_TYPE_IDX(NODE) \
3430 (TEMPLATE_PARM_IDX (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3431 #define TEMPLATE_TYPE_LEVEL(NODE) \
3432 (TEMPLATE_PARM_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3433 #define TEMPLATE_TYPE_ORIG_LEVEL(NODE) \
3434 (TEMPLATE_PARM_ORIG_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3435 #define TEMPLATE_TYPE_DECL(NODE) \
3436 (TEMPLATE_PARM_DECL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3438 /* These constants can used as bit flags in the process of tree formatting.
3440 TFF_PLAIN_IDENTIFIER: unqualified part of a name.
3441 TFF_SCOPE: include the class and namespace scope of the name.
3442 TFF_CHASE_TYPEDEF: print the original type-id instead of the typedef-name.
3443 TFF_DECL_SPECIFIERS: print decl-specifiers.
3444 TFF_CLASS_KEY_OR_ENUM: precede a class-type name (resp. enum name) with
3445 a class-key (resp. `enum').
3446 TFF_RETURN_TYPE: include function return type.
3447 TFF_FUNCTION_DEFAULT_ARGUMENTS: include function default parameter values.
3448 TFF_EXCEPTION_SPECIFICATION: show function exception specification.
3449 TFF_TEMPLATE_HEADER: show the template<...> header in a
3450 template-declaration.
3451 TFF_TEMPLATE_NAME: show only template-name.
3452 TFF_EXPR_IN_PARENS: parenthesize expressions.
3453 TFF_NO_FUNCTION_ARGUMENTS: don't show function arguments. */
3455 #define TFF_PLAIN_IDENTIFIER (0)
3456 #define TFF_SCOPE (1)
3457 #define TFF_CHASE_TYPEDEF (1 << 1)
3458 #define TFF_DECL_SPECIFIERS (1 << 2)
3459 #define TFF_CLASS_KEY_OR_ENUM (1 << 3)
3460 #define TFF_RETURN_TYPE (1 << 4)
3461 #define TFF_FUNCTION_DEFAULT_ARGUMENTS (1 << 5)
3462 #define TFF_EXCEPTION_SPECIFICATION (1 << 6)
3463 #define TFF_TEMPLATE_HEADER (1 << 7)
3464 #define TFF_TEMPLATE_NAME (1 << 8)
3465 #define TFF_EXPR_IN_PARENS (1 << 9)
3466 #define TFF_NO_FUNCTION_ARGUMENTS (1 << 10)
3468 /* Returns the TEMPLATE_DECL associated to a TEMPLATE_TEMPLATE_PARM
3470 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_DECL(NODE) \
3471 ((TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM) \
3472 ? TYPE_TI_TEMPLATE (NODE) \
3477 extern void init_reswords (void);
3479 /* Indexed by TREE_CODE, these tables give C-looking names to
3480 operators represented by TREE_CODES. For example,
3481 opname_tab[(int) MINUS_EXPR] == "-". */
3482 extern const char **opname_tab, **assignop_tab;
3484 typedef struct operator_name_info_t GTY(())
3486 /* The IDENTIFIER_NODE for the operator. */
3488 /* The name of the operator. */
3490 /* The mangled name of the operator. */
3491 const char *mangled_name;
3492 /* The arity of the operator. */
3494 } operator_name_info_t;
3496 /* A mapping from tree codes to operator name information. */
3497 extern GTY(()) operator_name_info_t operator_name_info
3498 [(int) LAST_CPLUS_TREE_CODE];
3499 /* Similar, but for assignment operators. */
3500 extern GTY(()) operator_name_info_t assignment_operator_name_info
3501 [(int) LAST_CPLUS_TREE_CODE];
3504 extern bool check_dtor_name (tree, tree);
3506 extern tree build_vfield_ref (tree, tree);
3507 extern tree build_conditional_expr (tree, tree, tree);
3508 extern tree build_addr_func (tree);
3509 extern tree build_call (tree, tree);
3510 extern tree build_method_call (tree, tree, tree, tree, int);
3511 extern bool null_ptr_cst_p (tree);
3512 extern bool sufficient_parms_p (tree);
3513 extern tree type_decays_to (tree);
3514 extern tree build_user_type_conversion (tree, tree, int);
3515 extern tree build_new_function_call (tree, tree);
3516 extern tree build_operator_new_call (tree, tree, tree *, tree *);
3517 extern tree build_new_method_call (tree, tree, tree, tree, int);
3518 extern tree build_special_member_call (tree, tree, tree, tree, int);
3519 extern tree build_new_op (enum tree_code, int, tree, tree, tree);
3520 extern tree build_op_delete_call (enum tree_code, tree, tree, int, tree);
3521 extern bool can_convert (tree, tree);
3522 extern bool can_convert_arg (tree, tree, tree);
3523 extern bool can_convert_arg_bad (tree, tree, tree);
3524 extern bool enforce_access (tree, tree);
3525 extern tree convert_default_arg (tree, tree, tree, int);
3526 extern tree convert_arg_to_ellipsis (tree);
3527 extern tree build_x_va_arg (tree, tree);
3528 extern tree cxx_type_promotes_to (tree);
3529 extern tree type_passed_as (tree);
3530 extern tree convert_for_arg_passing (tree, tree);
3531 extern tree cp_convert_parm_for_inlining (tree, tree, tree);
3532 extern bool is_properly_derived_from (tree, tree);
3533 extern tree initialize_reference (tree, tree, tree, tree *);
3534 extern tree make_temporary_var_for_ref_to_temp (tree, tree);
3535 extern tree strip_top_quals (tree);
3536 extern tree perform_implicit_conversion (tree, tree);
3537 extern tree perform_direct_initialization_if_possible (tree, tree);
3538 extern tree in_charge_arg_for_name (tree);
3539 extern tree build_cxx_call (tree, tree, tree);
3542 extern tree build_base_path (enum tree_code, tree, tree, int);
3543 extern tree convert_to_base (tree, tree, bool);
3544 extern tree convert_to_base_statically (tree, tree);
3545 extern tree build_vtbl_ref (tree, tree);
3546 extern tree build_vfn_ref (tree, tree);
3547 extern tree get_vtable_decl (tree, int);
3548 extern void resort_type_method_vec
3549 (void *, void *, gt_pointer_operator, void *);
3550 extern void add_method (tree, tree, int);
3551 extern int currently_open_class (tree);
3552 extern tree currently_open_derived_class (tree);
3553 extern tree finish_struct (tree, tree);
3554 extern void finish_struct_1 (tree);
3555 extern int resolves_to_fixed_type_p (tree, int *);
3556 extern void init_class_processing (void);
3557 extern int is_empty_class (tree);
3558 extern void pushclass (tree);
3559 extern void popclass (void);
3560 extern void push_nested_class (tree);
3561 extern void pop_nested_class (void);
3562 extern int current_lang_depth (void);
3563 extern void push_lang_context (tree);
3564 extern void pop_lang_context (void);
3565 extern tree instantiate_type (tree, tree, tsubst_flags_t);
3566 extern void print_class_statistics (void);
3567 extern void cxx_print_statistics (void);
3568 extern void cxx_print_xnode (FILE *, tree, int);
3569 extern void cxx_print_decl (FILE *, tree, int);
3570 extern void cxx_print_type (FILE *, tree, int);
3571 extern void cxx_print_identifier (FILE *, tree, int);
3572 extern void cxx_print_error_function (struct diagnostic_context *,
3574 extern void build_self_reference (void);
3575 extern int same_signature_p (tree, tree);
3576 extern void warn_hidden (tree);
3577 extern void maybe_add_class_template_decl_list (tree, tree, int);
3578 extern tree get_enclosing_class (tree);
3579 extern void unreverse_member_declarations (tree);
3580 extern void invalidate_class_lookup_cache (void);
3581 extern void maybe_note_name_used_in_class (tree, tree);
3582 extern void note_name_declared_in_class (tree, tree);
3583 extern tree get_vtbl_decl_for_binfo (tree);
3584 extern tree get_vtt_name (tree);
3585 extern tree get_primary_binfo (tree);
3586 extern void debug_class (tree);
3587 extern void debug_thunks (tree);
3590 extern tree convert_to_reference (tree, tree, int, int, tree);
3591 extern tree convert_from_reference (tree);
3592 extern tree convert_lvalue (tree, tree);
3593 extern tree force_rvalue (tree);
3594 extern tree ocp_convert (tree, tree, int, int);
3595 extern tree cp_convert (tree, tree);
3596 extern tree convert_to_void (tree, const char */*implicit context*/);
3597 extern tree convert_force (tree, tree, int);
3598 extern tree build_type_conversion (tree, tree);
3599 extern tree build_expr_type_conversion (int, tree, bool);
3600 extern tree type_promotes_to (tree);
3601 extern tree perform_qualification_conversions (tree, tree);
3602 extern void clone_function_decl (tree, int);
3603 extern void adjust_clone_args (tree);
3606 extern void insert_block (tree);
3607 extern void set_block (tree);
3608 extern tree pushdecl (tree);
3609 extern void cxx_init_decl_processing (void);
3610 enum cp_tree_node_structure_enum cp_tree_node_structure
3611 (union lang_tree_node *);
3612 extern bool cxx_mark_addressable (tree);
3613 extern void cxx_push_function_context (struct function *);
3614 extern void cxx_pop_function_context (struct function *);
3615 extern void cxx_mark_function_context (struct function *);
3616 extern void maybe_push_cleanup_level (tree);
3617 extern void finish_scope (void);
3618 extern void delete_block (tree);
3619 extern void add_block_current_level (tree);
3620 extern void push_switch (tree);
3621 extern void pop_switch (void);
3622 extern void pushtag (tree, tree, int);
3623 extern tree make_anon_name (void);
3624 extern void clear_anon_tags (void);
3625 extern int decls_match (tree, tree);
3626 extern tree duplicate_decls (tree, tree);
3627 extern tree pushdecl_top_level (tree);
3628 extern tree pushdecl_top_level_and_finish (tree, tree);
3629 extern tree push_using_decl (tree, tree);
3630 extern tree implicitly_declare (tree);
3631 extern tree declare_local_label (tree);
3632 extern tree define_label (location_t, tree);
3633 extern void check_goto (tree);
3634 extern void define_case_label (void);
3635 extern tree make_typename_type (tree, tree, tsubst_flags_t);
3636 extern tree make_unbound_class_template (tree, tree, tsubst_flags_t);
3637 extern tree check_for_out_of_scope_variable (tree);
3638 extern tree build_library_fn (tree, tree);
3639 extern tree build_library_fn_ptr (const char *, tree);
3640 extern tree build_cp_library_fn_ptr (const char *, tree);
3641 extern tree push_library_fn (tree, tree);
3642 extern tree push_void_library_fn (tree, tree);
3643 extern tree push_throw_library_fn (tree, tree);
3644 extern int init_type_desc (void);
3645 extern tree check_tag_decl (tree);
3646 extern tree shadow_tag (tree);
3647 extern tree groktypename (tree);
3648 extern tree start_decl (tree, tree, int, tree, tree);
3649 extern void start_decl_1 (tree);
3650 extern void cp_finish_decl (tree, tree, tree, int);
3651 extern void finish_decl (tree, tree, tree);
3652 extern void maybe_inject_for_scope_var (tree);
3653 extern tree start_handler_parms (tree, tree);
3654 extern int complete_array_type (tree, tree, int);
3655 extern tree build_ptrmemfunc_type (tree);
3656 extern tree build_ptrmem_type (tree, tree);
3657 /* the grokdeclarator prototype is in decl.h */
3658 extern int copy_fn_p (tree);
3659 extern tree get_scope_of_declarator (tree);
3660 extern void grok_special_member_properties (tree);
3661 extern int grok_ctor_properties (tree, tree);
3662 extern bool grok_op_properties (tree, int, bool);
3663 extern tree xref_tag (enum tag_types, tree, tree, bool, bool);
3664 extern tree xref_tag_from_type (tree, tree, int);
3665 extern void xref_basetypes (tree, tree);
3666 extern tree start_enum (tree);
3667 extern void finish_enum (tree);
3668 extern void build_enumerator (tree, tree, tree);
3669 extern int start_function (tree, tree, tree, int);
3670 extern tree begin_function_body (void);
3671 extern void finish_function_body (tree);
3672 extern tree finish_function (int);
3673 extern tree start_method (tree, tree, tree);
3674 extern tree finish_method (tree);
3675 extern void maybe_register_incomplete_var (tree);
3676 extern void complete_vars (tree);
3677 extern void finish_stmt (void);
3678 extern void print_other_binding_stack (struct cp_binding_level *);
3679 extern void revert_static_member_fn (tree);
3680 extern void fixup_anonymous_aggr (tree);
3681 extern int check_static_variable_definition (tree, tree);
3682 extern tree compute_array_index_type (tree, tree);
3683 extern tree check_default_argument (tree, tree);
3684 extern int vtable_decl_p (tree, void *);
3685 extern int vtype_decl_p (tree, void *);
3686 extern int sigtable_decl_p (tree, void *);
3687 typedef bool (*walk_globals_pred) (tree, void *);
3688 typedef bool (*walk_globals_fn) (tree *, void *);
3689 extern bool walk_globals (walk_globals_pred, walk_globals_fn, void *);
3690 extern bool walk_vtables (walk_globals_pred, walk_globals_fn, void *);
3691 typedef int (*walk_namespaces_fn) (tree, void *);
3692 extern int walk_namespaces (walk_namespaces_fn,
3694 extern int wrapup_globals_for_namespace (tree, void *);
3695 extern tree create_implicit_typedef (tree, tree);
3696 extern tree maybe_push_decl (tree);
3697 extern tree build_target_expr_with_type (tree, tree);
3698 extern int local_variable_p (tree);
3699 extern int nonstatic_local_decl_p (tree);
3700 extern tree declare_global_var (tree, tree);
3701 extern void register_dtor_fn (tree);
3702 extern tmpl_spec_kind current_tmpl_spec_kind (int);
3703 extern tree cp_fname_init (const char *, tree *);
3704 extern tree check_elaborated_type_specifier (enum tag_types, tree, bool);
3705 extern tree cxx_builtin_type_decls (void);
3706 extern void warn_extern_redeclared_static (tree, tree);
3708 extern bool have_extern_spec;
3709 extern GTY(()) tree last_function_parms;
3712 extern bool check_java_method (tree);
3713 extern int grok_method_quals (tree, tree, tree);
3714 extern void warn_if_unknown_interface (tree);
3715 extern void grok_x_components (tree);
3716 extern void maybe_retrofit_in_chrg (tree);
3717 extern void maybe_make_one_only (tree);
3718 extern void grokclassfn (tree, tree, enum overload_flags, tree);
3719 extern tree grok_array_decl (tree, tree);
3720 extern tree delete_sanity (tree, tree, int, int);
3721 extern tree check_classfn (tree, tree, bool);
3722 extern void check_member_template (tree);
3723 extern tree grokfield (tree, tree, tree, tree, tree);
3724 extern tree grokbitfield (tree, tree, tree);
3725 extern tree groktypefield (tree, tree);
3726 extern void cplus_decl_attributes (tree *, tree, int);
3727 extern void defer_fn (tree);
3728 extern void finish_anon_union (tree);
3729 extern tree finish_table (tree, tree, tree, int);
3730 extern tree coerce_new_type (tree);
3731 extern tree coerce_delete_type (tree);
3732 extern void comdat_linkage (tree);
3733 extern void import_export_vtable (tree, tree, int);
3734 extern void import_export_decl (tree);
3735 extern void import_export_tinfo (tree, tree, bool);
3736 extern tree build_cleanup (tree);
3737 extern tree build_offset_ref_call_from_tree (tree, tree);
3738 extern void check_default_args (tree);
3739 extern void mark_used (tree);
3740 extern void finish_static_data_member_decl (tree, tree, tree, int);
3741 extern tree cp_build_parm_decl (tree, tree);
3742 extern tree build_artificial_parm (tree, tree);
3743 extern tree get_guard (tree);
3744 extern tree get_guard_cond (tree);
3745 extern tree set_guard (tree);
3746 extern tree cxx_callgraph_analyze_expr (tree *, int *, tree);
3748 /* XXX Not i18n clean. */
3749 #define cp_deprecated(STR) \
3751 if (warn_deprecated) \
3752 warning ("%s is deprecated, please see the documentation for details", \
3757 extern void init_error (void);
3758 extern const char *type_as_string (tree, int);
3759 extern const char *decl_as_string (tree, int);
3760 extern const char *expr_as_string (tree, int);
3761 extern const char *context_as_string (tree, int);
3762 extern const char *lang_decl_name (tree, int);
3763 extern const char *language_to_string (enum languages);
3764 extern void print_instantiation_context (void);
3767 extern void init_exception_processing (void);
3768 extern tree expand_start_catch_block (tree);
3769 extern void expand_end_catch_block (void);
3770 extern void expand_builtin_throw (void);
3771 extern void expand_eh_spec_block (tree);
3772 extern void expand_exception_blocks (void);
3773 extern tree build_exc_ptr (void);
3774 extern tree build_throw (tree);
3775 extern void mark_all_runtime_matches (void);
3776 extern int nothrow_libfn_p (tree);
3777 extern void check_handlers (tree);
3778 extern void choose_personality_routine (enum languages);
3779 extern tree eh_type_info (tree);
3782 extern rtx cxx_expand_expr (tree, rtx,
3785 extern tree cplus_expand_constant (tree);
3788 extern int is_friend (tree, tree);
3789 extern void make_friend_class (tree, tree, bool);
3790 extern void add_friend (tree, tree, bool);
3791 extern tree do_friend (tree, tree, tree, tree, tree, enum overload_flags, tree, int);
3794 extern tree expand_member_init (tree);
3795 extern void emit_mem_initializers (tree);
3796 extern tree build_aggr_init (tree, tree, int);
3797 extern tree build_init (tree, tree, int);
3798 extern int is_aggr_type (tree, int);
3799 extern tree get_aggr_from_typedef (tree, int);
3800 extern tree get_type_value (tree);
3801 extern tree build_zero_init (tree, tree, bool);
3802 extern tree build_offset_ref (tree, tree, bool);
3803 extern tree build_new (tree, tree, tree, int);
3804 extern tree build_vec_init (tree, tree, tree, int);
3805 extern tree build_x_delete (tree, int, tree);
3806 extern tree build_delete (tree, tree, special_function_kind, int, int);
3807 extern void push_base_cleanups (void);
3808 extern tree build_vbase_delete (tree, tree);
3809 extern tree build_vec_delete (tree, tree, special_function_kind, int);
3810 extern tree create_temporary_var (tree);
3811 extern void initialize_vtbl_ptrs (tree);
3812 extern tree build_java_class_ref (tree);
3817 extern void cxx_dup_lang_specific_decl (tree);
3818 extern tree make_pointer_declarator (tree, tree);
3819 extern tree make_reference_declarator (tree, tree);
3820 extern tree make_call_declarator (tree, tree, tree, tree);
3821 extern void set_quals_and_spec (tree, tree, tree);
3822 extern void print_parse_statistics (void);
3823 extern void do_pending_inlines (void);
3824 extern void yyungetc (int, int);
3825 extern void snarf_method (tree);
3827 extern void see_typename (void);
3828 extern tree unqualified_name_lookup_error (tree);
3829 extern tree unqualified_fn_lookup_error (tree);
3830 extern tree build_lang_decl (enum tree_code, tree, tree);
3831 extern void retrofit_lang_decl (tree);
3832 extern tree copy_decl (tree);
3833 extern tree copy_type (tree);
3834 extern tree cxx_make_type (enum tree_code);
3835 extern tree make_aggr_type (enum tree_code);
3836 extern void yyerror (const char *);
3837 extern void yyhook (int);
3838 extern int cp_type_qual_from_rid (tree);
3839 extern bool cxx_init (void);
3840 extern void cxx_finish (void);
3843 extern void init_method (void);
3844 extern void set_mangled_name_for_decl (tree);
3845 extern tree make_thunk (tree, bool, tree, tree);
3846 extern void finish_thunk (tree);
3847 extern void use_thunk (tree, bool);
3848 extern void synthesize_method (tree);
3849 extern tree implicitly_declare_fn (special_function_kind, tree, bool);
3850 extern tree skip_artificial_parms_for (tree, tree);
3853 extern void optimize_function (tree);
3854 extern bool calls_setjmp_p (tree);
3855 extern bool maybe_clone_body (tree);
3858 extern void check_template_shadow (tree);
3859 extern tree get_innermost_template_args (tree, int);
3860 extern void maybe_begin_member_template_processing (tree);
3861 extern void maybe_end_member_template_processing (void);
3862 extern tree finish_member_template_decl (tree);
3863 extern void begin_template_parm_list (void);
3864 extern void begin_specialization (void);
3865 extern void reset_specialization (void);
3866 extern void end_specialization (void);
3867 extern void begin_explicit_instantiation (void);
3868 extern void end_explicit_instantiation (void);
3869 extern tree check_explicit_specialization (tree, tree, int, int);
3870 extern tree process_template_parm (tree, tree);
3871 extern tree end_template_parm_list (tree);
3872 extern void end_template_decl (void);
3873 extern tree current_template_args (void);
3874 extern tree push_template_decl (tree);
3875 extern tree push_template_decl_real (tree, int);
3876 extern void redeclare_class_template (tree, tree);
3877 extern tree lookup_template_class (tree, tree, tree, tree, int, tsubst_flags_t);
3878 extern tree lookup_template_function (tree, tree);
3879 extern int uses_template_parms (tree);
3880 extern int uses_template_parms_level (tree, int);
3881 extern tree instantiate_class_template (tree);
3882 extern tree instantiate_template (tree, tree, tsubst_flags_t);
3883 extern int fn_type_unification (tree, tree, tree, tree, tree, unification_kind_t, int);
3884 extern tree tinst_for_decl (void);
3885 extern void mark_decl_instantiated (tree, int);
3886 extern int more_specialized (tree, tree, int, int);
3887 extern void mark_class_instantiated (tree, int);
3888 extern void do_decl_instantiation (tree, tree);
3889 extern void do_type_instantiation (tree, tree, tsubst_flags_t);
3890 extern tree instantiate_decl (tree, int);
3891 extern int push_tinst_level (tree);
3892 extern void pop_tinst_level (void);
3893 extern int more_specialized_class (tree, tree, tree);
3894 extern int is_member_template (tree);
3895 extern int comp_template_parms (tree, tree);
3896 extern int template_class_depth (tree);
3897 extern int is_specialization_of (tree, tree);
3898 extern bool is_specialization_of_friend (tree, tree);
3899 extern int comp_template_args (tree, tree);
3900 extern void maybe_process_partial_specialization (tree);
3901 extern void maybe_check_template_type (tree);
3902 extern tree most_specialized_instantiation (tree);
3903 extern void print_candidates (tree);
3904 extern int instantiate_pending_templates (void);
3905 extern tree tsubst_default_argument (tree, tree, tree);
3906 extern tree tsubst_copy_and_build (tree, tree, tsubst_flags_t, tree, bool);
3907 extern tree most_general_template (tree);
3908 extern tree get_mostly_instantiated_function_type (tree);
3909 extern int problematic_instantiation_changed (void);
3910 extern void record_last_problematic_instantiation (void);
3911 extern tree current_instantiation (void);
3912 extern tree maybe_get_template_decl_from_type_decl (tree);
3913 extern int processing_template_parmlist;
3914 extern bool dependent_type_p (tree);
3915 extern bool any_dependent_template_arguments_p (tree);
3916 extern bool dependent_template_p (tree);
3917 extern bool dependent_template_id_p (tree, tree);
3918 extern bool type_dependent_expression_p (tree);
3919 extern bool any_type_dependent_arguments_p (tree);
3920 extern bool value_dependent_expression_p (tree);
3921 extern tree resolve_typename_type (tree, bool);
3922 extern tree template_for_substitution (tree);
3923 extern tree build_non_dependent_expr (tree);
3924 extern tree build_non_dependent_args (tree);
3925 extern bool reregister_specialization (tree, tree, tree);
3928 extern void repo_template_used (tree);
3929 extern void repo_template_instantiated (tree, bool);
3930 extern void init_repo (const char *);
3931 extern void finish_repo (void);
3934 /* A varray of all tinfo decls that haven't been emitted yet. */
3935 extern GTY(()) varray_type unemitted_tinfo_decls;
3937 extern void init_rtti_processing (void);
3938 extern tree build_typeid (tree);
3939 extern tree get_tinfo_decl (tree);
3940 extern tree get_typeid (tree);
3941 extern tree build_dynamic_cast (tree, tree);
3942 extern void emit_support_tinfos (void);
3943 extern bool emit_tinfo_decl (tree);
3946 extern bool accessible_base_p (tree, tree);
3947 extern tree lookup_base (tree, tree, base_access, base_kind *);
3948 extern int types_overlap_p (tree, tree);
3949 extern tree get_dynamic_cast_base_type (tree, tree);
3950 extern int accessible_p (tree, tree);
3951 extern tree lookup_field_1 (tree, tree, bool);
3952 extern tree lookup_field (tree, tree, int, bool);
3953 extern int lookup_fnfields_1 (tree, tree);
3954 extern tree lookup_fnfields (tree, tree, int);
3955 extern tree lookup_member (tree, tree, int, bool);
3956 extern int look_for_overrides (tree, tree);
3957 extern void get_pure_virtuals (tree);
3958 extern void maybe_suppress_debug_info (tree);
3959 extern void note_debug_info_needed (tree);
3960 extern void push_class_decls (tree);
3961 extern void pop_class_decls (void);
3962 extern void unuse_fields (tree);
3963 extern void print_search_statistics (void);
3964 extern void init_search_processing (void);
3965 extern void reinit_search_statistics (void);
3966 extern tree current_scope (void);
3967 extern int at_function_scope_p (void);
3968 extern bool at_class_scope_p (void);
3969 extern tree context_for_name_lookup (tree);
3970 extern tree lookup_conversions (tree);
3971 extern tree binfo_for_vtable (tree);
3972 extern tree binfo_from_vbase (tree);
3973 extern tree look_for_overrides_here (tree, tree);
3974 extern int check_final_overrider (tree, tree);
3975 extern tree dfs_walk (tree,
3976 tree (*) (tree, void *),
3977 tree (*) (tree, int, void *),
3979 extern tree dfs_walk_real (tree,
3980 tree (*) (tree, void *),
3981 tree (*) (tree, void *),
3982 tree (*) (tree, int, void *),
3984 extern tree dfs_unmark (tree, void *);
3985 extern tree markedp (tree, int, void *);
3986 extern tree unmarkedp (tree, int, void *);
3987 extern tree binfo_via_virtual (tree, tree);
3988 extern tree build_baselink (tree, tree, tree, tree);
3989 extern tree adjust_result_of_qualified_name_lookup
3991 extern tree copied_binfo (tree, tree);
3992 extern tree original_binfo (tree, tree);
3994 /* in semantics.c */
3995 extern void push_deferring_access_checks (deferring_kind);
3996 extern void resume_deferring_access_checks (void);
3997 extern void stop_deferring_access_checks (void);
3998 extern void pop_deferring_access_checks (void);
3999 extern tree get_deferred_access_checks (void);
4000 extern void pop_to_parent_deferring_access_checks (void);
4001 extern void perform_deferred_access_checks (void);
4002 extern void perform_or_defer_access_check (tree, tree);
4003 extern void init_cp_semantics (void);
4004 extern tree finish_expr_stmt (tree);
4005 extern tree begin_if_stmt (void);
4006 extern void finish_if_stmt_cond (tree, tree);
4007 extern tree finish_then_clause (tree);
4008 extern void begin_else_clause (void);
4009 extern void finish_else_clause (tree);
4010 extern void finish_if_stmt (void);
4011 extern tree begin_while_stmt (void);
4012 extern void finish_while_stmt_cond (tree, tree);
4013 extern void finish_while_stmt (tree);
4014 extern tree begin_do_stmt (void);
4015 extern void finish_do_body (tree);
4016 extern void finish_do_stmt (tree, tree);
4017 extern tree finish_return_stmt (tree);
4018 extern tree begin_for_stmt (void);
4019 extern void finish_for_init_stmt (tree);
4020 extern void finish_for_cond (tree, tree);
4021 extern void finish_for_expr (tree, tree);
4022 extern void finish_for_stmt (tree);
4023 extern tree finish_break_stmt (void);
4024 extern tree finish_continue_stmt (void);
4025 extern tree begin_switch_stmt (void);
4026 extern void finish_switch_cond (tree, tree);
4027 extern void finish_switch_stmt (tree);
4028 extern tree finish_case_label (tree, tree);
4029 extern tree finish_goto_stmt (tree);
4030 extern tree begin_try_block (void);
4031 extern void finish_try_block (tree);
4032 extern tree begin_eh_spec_block (void);
4033 extern void finish_eh_spec_block (tree, tree);
4034 extern void finish_handler_sequence (tree);
4035 extern tree begin_function_try_block (void);
4036 extern void finish_function_try_block (tree);
4037 extern void finish_function_handler_sequence (tree);
4038 extern void finish_cleanup_try_block (tree);
4039 extern tree begin_handler (void);
4040 extern void finish_handler_parms (tree, tree);
4041 extern void begin_catch_block (tree);
4042 extern void finish_handler (tree);
4043 extern void finish_cleanup (tree, tree);
4044 extern tree begin_compound_stmt (bool);
4045 extern tree finish_compound_stmt (tree);
4046 extern tree finish_asm_stmt (tree, tree, tree, tree, tree);
4047 extern tree finish_label_stmt (tree);
4048 extern void finish_label_decl (tree);
4049 extern void finish_subobject (tree);
4050 extern tree finish_parenthesized_expr (tree);
4051 extern tree finish_non_static_data_member (tree, tree, tree);
4052 extern tree begin_stmt_expr (void);
4053 extern tree finish_stmt_expr_expr (tree);
4054 extern tree finish_stmt_expr (tree, bool);
4055 extern tree perform_koenig_lookup (tree, tree);
4056 extern tree finish_call_expr (tree, tree, bool, bool);
4057 extern tree finish_increment_expr (tree, enum tree_code);
4058 extern tree finish_this_expr (void);
4059 extern tree finish_object_call_expr (tree, tree, tree);
4060 extern tree finish_pseudo_destructor_expr (tree, tree, tree);
4061 extern tree finish_unary_op_expr (enum tree_code, tree);
4062 extern tree finish_compound_literal (tree, tree);
4063 extern tree finish_fname (tree);
4064 extern int begin_function_definition (tree, tree, tree);
4065 extern void finish_translation_unit (void);
4066 extern tree finish_template_type_parm (tree, tree);
4067 extern tree finish_template_template_parm (tree, tree);
4068 extern tree finish_parmlist (tree, int);
4069 extern tree begin_class_definition (tree);
4070 extern void finish_default_args (void);
4071 extern tree finish_member_class_template (tree);
4072 extern void finish_template_decl (tree);
4073 extern tree finish_template_type (tree, tree, int);
4074 extern tree finish_base_specifier (tree, tree, bool);
4075 extern void finish_member_declaration (tree);
4076 extern void check_multiple_declarators (void);
4077 extern void qualified_name_lookup_error (tree, tree);
4078 extern tree finish_id_expression (tree, tree, tree,
4079 cp_id_kind *, tree *,
4082 extern tree finish_typeof (tree);
4083 extern void finish_decl_cleanup (tree, tree);
4084 extern void finish_eh_cleanup (tree);
4085 extern void expand_body (tree);
4086 extern void cxx_expand_function_start (void);
4087 extern tree nullify_returns_r (tree *, int *, void *);
4088 extern void do_pushlevel (scope_kind);
4089 extern tree do_poplevel (void);
4090 extern void finish_mem_initializers (tree);
4091 extern void setup_vtbl_ptr (tree, tree);
4092 extern void clear_out_block (void);
4093 extern tree check_template_template_default_arg (tree);
4094 extern void expand_or_defer_fn (tree);
4095 extern void check_accessibility_of_qualified_id (tree, tree, tree);
4096 extern tree finish_qualified_id_expr (tree, tree, bool, bool);
4097 extern void simplify_aggr_init_expr (tree *);
4100 extern void lang_check_failed (const char *, int,
4102 extern tree stabilize_expr (tree, tree *);
4103 extern tree cxx_unsave_expr_now (tree);
4104 extern tree cxx_maybe_build_cleanup (tree);
4105 extern void init_tree (void);
4106 extern int pod_type_p (tree);
4107 extern int zero_init_p (tree);
4108 extern tree canonical_type_variant (tree);
4109 extern tree copy_base_binfos (tree, tree, tree);
4110 extern int member_p (tree);
4111 extern cp_lvalue_kind real_lvalue_p (tree);
4112 extern tree build_min (enum tree_code, tree, ...);
4113 extern tree build_min_nt (enum tree_code, ...);
4114 extern tree build_min_non_dep (enum tree_code, tree, ...);
4115 extern tree build_cplus_new (tree, tree);
4116 extern tree get_target_expr (tree);
4117 extern tree build_cplus_staticfn_type (tree, tree, tree);
4118 extern tree build_cplus_array_type (tree, tree);
4119 extern tree hash_tree_cons (tree, tree, tree);
4120 extern tree hash_tree_chain (tree, tree);
4121 extern tree hash_chainon (tree, tree);
4122 extern tree make_binfo (tree, tree, tree, tree);
4123 extern int count_functions (tree);
4124 extern int is_overloaded_fn (tree);
4125 extern tree get_first_fn (tree);
4126 extern int bound_pmf_p (tree);
4127 extern tree ovl_cons (tree, tree);
4128 extern tree build_overload (tree, tree);
4129 extern tree function_arg_chain (tree);
4130 extern int promotes_to_aggr_type (tree, enum tree_code);
4131 extern const char *cxx_printable_name (tree, int);
4132 extern tree build_exception_variant (tree, tree);
4133 extern tree bind_template_template_parm (tree, tree);
4134 extern tree array_type_nelts_total (tree);
4135 extern tree array_type_nelts_top (tree);
4136 extern tree break_out_target_exprs (tree);
4137 extern tree get_type_decl (tree);
4138 extern tree vec_binfo_member (tree, tree);
4139 extern tree decl_namespace_context (tree);
4140 extern tree lvalue_type (tree);
4141 extern tree error_type (tree);
4142 extern tree build_zc_wrapper (struct z_candidate *);
4143 extern int varargs_function_p (tree);
4144 extern int really_overloaded_fn (tree);
4145 extern bool cp_tree_equal (tree, tree);
4146 extern tree no_linkage_check (tree);
4147 extern void debug_binfo (tree);
4148 extern tree build_dummy_object (tree);
4149 extern tree maybe_dummy_object (tree, tree *);
4150 extern int is_dummy_object (tree);
4151 extern const struct attribute_spec cxx_attribute_table[];
4152 extern tree make_ptrmem_cst (tree, tree);
4153 extern tree cp_build_qualified_type_real (tree, int, tsubst_flags_t);
4154 #define cp_build_qualified_type(TYPE, QUALS) \
4155 cp_build_qualified_type_real ((TYPE), (QUALS), tf_error | tf_warning)
4156 extern tree build_shared_int_cst (int);
4157 extern special_function_kind special_function_p (tree);
4158 extern bool name_p (tree);
4159 extern int count_trees (tree);
4160 extern int char_type_p (tree);
4161 extern void verify_stmt_tree (tree);
4162 extern tree find_tree (tree, tree);
4163 extern linkage_kind decl_linkage (tree);
4164 extern tree cp_walk_subtrees (tree*, int*, walk_tree_fn,
4166 extern int cp_cannot_inline_tree_fn (tree*);
4167 extern tree cp_add_pending_fn_decls (void*,tree);
4168 extern int cp_is_overload_p (tree);
4169 extern int cp_auto_var_in_fn_p (tree,tree);
4170 extern tree cp_copy_res_decl_for_inlining (tree, tree, tree, void*,
4172 extern int cp_start_inlining (tree);
4173 extern void cp_end_inlining (tree);
4176 extern int string_conv_p (tree, tree, int);
4177 extern tree cp_truthvalue_conversion (tree);
4178 extern tree condition_conversion (tree);
4179 extern tree target_type (tree);
4180 extern tree require_complete_type (tree);
4181 extern tree complete_type (tree);
4182 extern tree complete_type_or_diagnostic (tree, tree, int);
4183 #define complete_type_or_else(T,V) (complete_type_or_diagnostic ((T), (V), 0))
4184 extern int type_unknown_p (tree);
4185 extern tree commonparms (tree, tree);
4186 extern tree original_type (tree);
4187 extern bool comp_except_specs (tree, tree, bool);
4188 extern bool comptypes (tree, tree, int);
4189 extern bool compparms (tree, tree);
4190 extern int comp_cv_qualification (tree, tree);
4191 extern int comp_cv_qual_signature (tree, tree);
4192 extern tree cxx_sizeof_or_alignof_expr (tree, enum tree_code);
4193 extern tree cxx_sizeof_or_alignof_type (tree, enum tree_code, bool);
4194 #define cxx_sizeof_nowarn(T) cxx_sizeof_or_alignof_type (T, SIZEOF_EXPR, false)
4195 extern tree inline_conversion (tree);
4196 extern tree decay_conversion (tree);
4197 extern tree perform_integral_promotions (tree);
4198 extern tree build_class_member_access_expr (tree, tree, tree, bool);
4199 extern tree finish_class_member_access_expr (tree, tree);
4200 extern tree build_x_indirect_ref (tree, const char *);
4201 extern tree build_indirect_ref (tree, const char *);
4202 extern tree build_array_ref (tree, tree);
4203 extern tree get_member_function_from_ptrfunc (tree *, tree);
4204 extern tree convert_arguments (tree, tree, tree, int);
4205 extern tree build_x_binary_op (enum tree_code, tree, tree);
4206 extern tree build_x_unary_op (enum tree_code, tree);
4207 extern tree unary_complex_lvalue (enum tree_code, tree);
4208 extern tree build_x_conditional_expr (tree, tree, tree);
4209 extern tree build_x_compound_expr_from_list (tree, const char *);
4210 extern tree build_x_compound_expr (tree, tree);
4211 extern tree build_compound_expr (tree, tree);
4212 extern tree build_static_cast (tree, tree);
4213 extern tree build_reinterpret_cast (tree, tree);
4214 extern tree build_const_cast (tree, tree);
4215 extern tree build_c_cast (tree, tree);
4216 extern tree build_x_modify_expr (tree, enum tree_code, tree);
4217 extern tree build_modify_expr (tree, enum tree_code, tree);
4218 extern tree dubious_conversion_warnings (tree, tree, const char *, tree, int);
4219 extern tree convert_for_initialization (tree, tree, tree, int, const char *, tree, int);
4220 extern int comp_ptr_ttypes (tree, tree);
4221 extern int ptr_reasonably_similar (tree, tree);
4222 extern tree build_ptrmemfunc (tree, tree, int);
4223 extern int cp_type_quals (tree);
4224 extern bool cp_has_mutable_p (tree);
4225 extern bool at_least_as_qualified_p (tree, tree);
4226 extern bool more_qualified_p (tree, tree);
4227 extern tree build_ptrmemfunc1 (tree, tree, tree);
4228 extern void expand_ptrmemfunc_cst (tree, tree *, tree *);
4229 extern tree pfn_from_ptrmemfunc (tree);
4230 extern tree type_after_usual_arithmetic_conversions (tree, tree);
4231 extern tree composite_pointer_type (tree, tree, tree, tree,
4233 extern tree merge_types (tree, tree);
4234 extern tree check_return_expr (tree);
4235 #define cp_build_binary_op(code, arg1, arg2) \
4236 build_binary_op(code, arg1, arg2, 1)
4237 #define cxx_sizeof(T) cxx_sizeof_or_alignof_type (T, SIZEOF_EXPR, true)
4238 #define cxx_alignof(T) cxx_sizeof_or_alignof_type (T, ALIGNOF_EXPR, true)
4239 extern tree build_ptrmemfunc_access_expr (tree, tree);
4240 extern tree build_address (tree);
4241 extern tree build_nop (tree, tree);
4242 extern tree non_reference (tree);
4245 extern void require_complete_eh_spec_types (tree, tree);
4246 extern void cxx_incomplete_type_diagnostic (tree, tree, int);
4247 #undef cxx_incomplete_type_error
4248 extern void cxx_incomplete_type_error (tree, tree);
4249 #define cxx_incomplete_type_error(V,T) \
4250 (cxx_incomplete_type_diagnostic ((V), (T), 0))
4251 extern tree error_not_base_type (tree, tree);
4252 extern tree binfo_or_else (tree, tree);
4253 extern void readonly_error (tree, const char *, int);
4254 extern int abstract_virtuals_error (tree, tree);
4256 extern tree store_init_value (tree, tree);
4257 extern tree digest_init (tree, tree, tree *);
4258 extern tree build_scoped_ref (tree, tree, tree *);
4259 extern tree build_x_arrow (tree);
4260 extern tree build_m_component_ref (tree, tree);
4261 extern tree build_functional_cast (tree, tree);
4262 extern tree add_exception_specifier (tree, tree, int);
4263 extern tree merge_exception_specifiers (tree, tree);
4266 extern void init_mangle (void);
4267 extern void mangle_decl (tree);
4268 extern const char *mangle_type_string (tree);
4269 extern tree mangle_type (tree);
4270 extern tree mangle_typeinfo_for_type (tree);
4271 extern tree mangle_typeinfo_string_for_type (tree);
4272 extern tree mangle_vtbl_for_type (tree);
4273 extern tree mangle_vtt_for_type (tree);
4274 extern tree mangle_ctor_vtbl_for_type (tree, tree);
4275 extern tree mangle_thunk (tree, int, tree, tree);
4276 extern tree mangle_conv_op_name_for_type (tree);
4277 extern tree mangle_guard_variable (tree);
4278 extern tree mangle_ref_init_variable (tree);
4281 extern bool cp_dump_tree (void *, tree);
4285 /* In order for the format checking to accept the C++ frontend
4286 diagnostic framework extensions, you must include this file before
4287 toplev.h, not after. */
4288 #define GCC_DIAG_STYLE __gcc_cxxdiag__
4289 #if GCC_VERSION >= 3004
4290 #define ATTRIBUTE_GCC_CXXDIAG(m, n) __attribute__ ((__format__ (GCC_DIAG_STYLE, m, n))) ATTRIBUTE_NONNULL(m)
4292 #define ATTRIBUTE_GCC_CXXDIAG(m, n) ATTRIBUTE_NONNULL(m)
4295 extern void cp_error_at (const char *, ...) ATTRIBUTE_GCC_CXXDIAG(1, 2);
4296 extern void cp_warning_at (const char *, ...) ATTRIBUTE_GCC_CXXDIAG(1, 2);
4297 extern void cp_pedwarn_at (const char *, ...) ATTRIBUTE_GCC_CXXDIAG(1, 2);
4299 #endif /* ! GCC_CP_TREE_H */