1 /* Definitions for C++ parsing and type checking.
2 Copyright (C) 1987, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
4 Contributed by Michael Tiemann (tiemann@cygnus.com)
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
13 GCC is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING. If not, write to
20 the Free Software Foundation, 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
29 #include "splay-tree.h"
33 #include "name-lookup.h"
34 struct diagnostic_context;
36 /* Usage of TREE_LANG_FLAG_?:
37 0: IDENTIFIER_MARKED (IDENTIFIER_NODEs)
38 NEW_EXPR_USE_GLOBAL (in NEW_EXPR).
39 DELETE_EXPR_USE_GLOBAL (in DELETE_EXPR).
40 COMPOUND_EXPR_OVERLOADED (in COMPOUND_EXPR).
41 TREE_INDIRECT_USING (in NAMESPACE_DECL).
42 CLEANUP_P (in TRY_BLOCK)
43 AGGR_INIT_VIA_CTOR_P (in AGGR_INIT_EXPR)
44 PTRMEM_OK_P (in ADDR_EXPR, OFFSET_REF)
45 DECL_PRETTY_FUNCTION_P (in VAR_DECL)
46 KOENIG_LOOKUP_P (in CALL_EXPR)
47 STATEMENT_LIST_NO_SCOPE (in STATEMENT_LIST).
48 EXPR_STMT_STMT_EXPR_RESULT (in EXPR_STMT)
49 BIND_EXPR_TRY_BLOCK (in BIND_EXPR)
50 1: IDENTIFIER_VIRTUAL_P (in IDENTIFIER_NODE)
51 TI_PENDING_TEMPLATE_FLAG.
52 TEMPLATE_PARMS_FOR_INLINE.
53 DELETE_EXPR_USE_VEC (in DELETE_EXPR).
54 (TREE_CALLS_NEW) (in _EXPR or _REF) (commented-out).
55 ICS_ELLIPSIS_FLAG (in _CONV)
56 DECL_INITIALIZED_P (in VAR_DECL)
57 2: IDENTIFIER_OPNAME_P (in IDENTIFIER_NODE)
58 ICS_THIS_FLAG (in _CONV)
59 DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (in VAR_DECL)
60 STATEMENT_LIST_TRY_BLOCK (in STATEMENT_LIST)
61 3: (TREE_REFERENCE_EXPR) (in NON_LVALUE_EXPR) (commented-out).
62 ICS_BAD_FLAG (in _CONV)
63 FN_TRY_BLOCK_P (in TRY_BLOCK)
64 IDENTIFIER_CTOR_OR_DTOR_P (in IDENTIFIER_NODE)
65 BIND_EXPR_BODY_BLOCK (in BIND_EXPR)
66 4: TREE_HAS_CONSTRUCTOR (in INDIRECT_REF, SAVE_EXPR, CONSTRUCTOR,
68 IDENTIFIER_TYPENAME_P (in IDENTIFIER_NODE)
69 DECL_TINFO_P (in VAR_DECL)
70 5: C_IS_RESERVED_WORD (in IDENTIFIER_NODE)
71 DECL_VTABLE_OR_VTT_P (in VAR_DECL)
72 6: IDENTIFIER_REPO_CHOSEN (in IDENTIFIER_NODE)
73 DECL_CONSTRUCTION_VTABLE_P (in VAR_DECL)
74 TYPE_MARKED_P (in _TYPE)
76 Usage of TYPE_LANG_FLAG_?:
78 1: TYPE_HAS_CONSTRUCTOR.
79 2: TYPE_HAS_DESTRUCTOR.
81 4: TYPE_HAS_NONTRIVIAL_DESTRUCTOR
83 6: TYPE_DEPENDENT_P_VALID
85 Usage of DECL_LANG_FLAG_?:
86 0: DECL_ERROR_REPORTED (in VAR_DECL).
87 DECL_TEMPLATE_PARM_P (in PARM_DECL, CONST_DECL, TYPE_DECL, or TEMPLATE_DECL)
88 DECL_LOCAL_FUNCTION_P (in FUNCTION_DECL)
89 DECL_MUTABLE_P (in FIELD_DECL)
90 1: C_TYPEDEF_EXPLICITLY_SIGNED (in TYPE_DECL).
91 DECL_TEMPLATE_INSTANTIATED (in a VAR_DECL or a FUNCTION_DECL)
92 DECL_MEMBER_TEMPLATE_P (in TEMPLATE_DECL)
93 2: DECL_THIS_EXTERN (in VAR_DECL or FUNCTION_DECL).
94 DECL_IMPLICIT_TYPEDEF_P (in a TYPE_DECL)
96 4: DECL_C_BIT_FIELD (in a FIELD_DECL)
97 DECL_VAR_MARKED_P (in a VAR_DECL)
98 DECL_SELF_REFERENCE_P (in a TYPE_DECL)
99 DECL_INVALID_OVERRIDER_P (in a FUNCTION_DECL)
100 5: DECL_INTERFACE_KNOWN.
101 6: DECL_THIS_STATIC (in VAR_DECL or FUNCTION_DECL).
102 DECL_FIELD_IS_BASE (in FIELD_DECL)
103 7: DECL_DEAD_FOR_LOCAL (in VAR_DECL).
104 DECL_THUNK_P (in a member FUNCTION_DECL)
106 Usage of language-independent fields in a language-dependent manner:
109 This field is used by TYPENAME_TYPEs, TEMPLATE_TYPE_PARMs, and so
110 forth as a substitute for the mark bits provided in `lang_type'.
111 At present, only the six low-order bits are used.
114 For an ENUMERAL_TYPE, this is ENUM_TEMPLATE_INFO.
115 For a FUNCTION_TYPE or METHOD_TYPE, this is TYPE_RAISES_EXCEPTIONS
118 For a binfo, this is a TREE_LIST. There is an entry for each
119 virtual function declared either in BINFO or its direct and
120 indirect primary bases.
122 The BV_DELTA of each node gives the amount by which to adjust the
123 `this' pointer when calling the function. If the method is an
124 overridden version of a base class method, then it is assumed
125 that, prior to adjustment, the this pointer points to an object
128 The BV_VCALL_INDEX of each node, if non-NULL, gives the vtable
129 index of the vcall offset for this entry.
131 The BV_FN is the declaration for the virtual function itself.
134 This is an expression with POINTER_TYPE that gives the value
135 to which the vptr should be initialized. Use get_vtbl_decl_for_binfo
136 to extract the VAR_DECL for the complete vtable.
139 For a VAR_DECL this is DECL_ANON_UNION_ELEMS.
142 This field is NULL for a non-virtual function. For a virtual
143 function, it is eventually set to an INTEGER_CST indicating the
144 index in the vtable at which this function can be found. When
145 a virtual function is declared, but before it is known what
146 function is overridden, this field is the error_mark_node.
148 Temporarily, it may be set to a TREE_LIST whose TREE_VALUE is
149 the virtual function this one overrides, and whose TREE_CHAIN is
150 the old DECL_VINDEX. */
152 /* Language-specific tree checkers. */
154 #define VAR_OR_FUNCTION_DECL_CHECK(NODE) \
155 TREE_CHECK2(NODE,VAR_DECL,FUNCTION_DECL)
157 #define VAR_FUNCTION_OR_PARM_DECL_CHECK(NODE) \
158 TREE_CHECK3(NODE,VAR_DECL,FUNCTION_DECL,PARM_DECL)
160 #define VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK(NODE) \
161 TREE_CHECK4(NODE,VAR_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL)
163 #define BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK(NODE) \
164 TREE_CHECK(NODE,BOUND_TEMPLATE_TEMPLATE_PARM)
167 /* Language-dependent contents of an identifier. */
169 struct lang_identifier GTY(())
171 struct c_common_identifier c_common;
172 cxx_binding *namespace_bindings;
173 cxx_binding *bindings;
174 tree class_template_info;
178 /* In an IDENTIFIER_NODE, nonzero if this identifier is actually a
179 keyword. C_RID_CODE (node) is then the RID_* value of the keyword,
180 and C_RID_YYCODE is the token number wanted by Yacc. */
182 #define C_IS_RESERVED_WORD(ID) TREE_LANG_FLAG_5 (ID)
184 #define LANG_IDENTIFIER_CAST(NODE) \
185 ((struct lang_identifier*)IDENTIFIER_NODE_CHECK (NODE))
187 struct template_parm_index_s GTY(())
189 struct tree_common common;
192 HOST_WIDE_INT orig_level;
195 typedef struct template_parm_index_s template_parm_index;
197 struct tinst_level_s GTY(())
199 struct tree_common common;
203 typedef struct tinst_level_s * tinst_level_t;
205 struct ptrmem_cst GTY(())
207 struct tree_common common;
208 /* This isn't used, but the middle-end expects all constants to have
213 typedef struct ptrmem_cst * ptrmem_cst_t;
215 #define IDENTIFIER_GLOBAL_VALUE(NODE) \
216 namespace_binding ((NODE), global_namespace)
217 #define SET_IDENTIFIER_GLOBAL_VALUE(NODE, VAL) \
218 set_namespace_binding ((NODE), global_namespace, (VAL))
219 #define IDENTIFIER_NAMESPACE_VALUE(NODE) \
220 namespace_binding ((NODE), current_namespace)
221 #define SET_IDENTIFIER_NAMESPACE_VALUE(NODE, VAL) \
222 set_namespace_binding ((NODE), current_namespace, (VAL))
224 #define CLEANUP_P(NODE) TREE_LANG_FLAG_0 (TRY_BLOCK_CHECK (NODE))
226 #define BIND_EXPR_TRY_BLOCK(NODE) \
227 TREE_LANG_FLAG_0 (BIND_EXPR_CHECK (NODE))
229 /* Used to mark the block around the member initializers and cleanups. */
230 #define BIND_EXPR_BODY_BLOCK(NODE) \
231 TREE_LANG_FLAG_3 (BIND_EXPR_CHECK (NODE))
233 #define STATEMENT_LIST_NO_SCOPE(NODE) \
234 TREE_LANG_FLAG_0 (STATEMENT_LIST_CHECK (NODE))
235 #define STATEMENT_LIST_TRY_BLOCK(NODE) \
236 TREE_LANG_FLAG_2 (STATEMENT_LIST_CHECK (NODE))
238 /* Marks the result of a statement expression. */
239 #define EXPR_STMT_STMT_EXPR_RESULT(NODE) \
240 TREE_LANG_FLAG_0 (EXPR_STMT_CHECK (NODE))
242 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, in the usual
244 #define same_type_p(TYPE1, TYPE2) \
245 comptypes ((TYPE1), (TYPE2), COMPARE_STRICT)
247 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, ignoring
248 top-level qualifiers. */
249 #define same_type_ignoring_top_level_qualifiers_p(TYPE1, TYPE2) \
250 same_type_p (TYPE_MAIN_VARIANT (TYPE1), TYPE_MAIN_VARIANT (TYPE2))
252 /* Nonzero if we are presently building a statement tree, rather
253 than expanding each statement as we encounter it. */
254 #define building_stmt_tree() (cur_stmt_list != NULL_TREE)
256 /* Returns nonzero iff NODE is a declaration for the global function
258 #define DECL_MAIN_P(NODE) \
259 (DECL_EXTERN_C_FUNCTION_P (NODE) \
260 && DECL_NAME (NODE) != NULL_TREE \
261 && MAIN_NAME_P (DECL_NAME (NODE)))
263 /* The overloaded FUNCTION_DECL. */
264 #define OVL_FUNCTION(NODE) \
265 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->function)
266 #define OVL_CHAIN(NODE) TREE_CHAIN (NODE)
267 /* Polymorphic access to FUNCTION and CHAIN. */
268 #define OVL_CURRENT(NODE) \
269 ((TREE_CODE (NODE) == OVERLOAD) ? OVL_FUNCTION (NODE) : (NODE))
270 #define OVL_NEXT(NODE) \
271 ((TREE_CODE (NODE) == OVERLOAD) ? TREE_CHAIN (NODE) : NULL_TREE)
272 /* If set, this was imported in a using declaration.
273 This is not to confuse with being used somewhere, which
274 is not important for this node. */
275 #define OVL_USED(NODE) TREE_USED (NODE)
277 struct tree_overload GTY(())
279 struct tree_common common;
283 /* Returns true iff NODE is a BASELINK. */
284 #define BASELINK_P(NODE) \
285 (TREE_CODE (NODE) == BASELINK)
286 /* The BINFO indicating the base from which the BASELINK_FUNCTIONS came. */
287 #define BASELINK_BINFO(NODE) \
288 (((struct tree_baselink*) BASELINK_CHECK (NODE))->binfo)
289 /* The functions referred to by the BASELINK; either a FUNCTION_DECL,
290 a TEMPLATE_DECL, an OVERLOAD, or a TEMPLATE_ID_EXPR. */
291 #define BASELINK_FUNCTIONS(NODE) \
292 (((struct tree_baselink*) BASELINK_CHECK (NODE))->functions)
293 /* The BINFO in which the search for the functions indicated by this baselink
294 began. This base is used to determine the accessibility of functions
295 selected by overload resolution. */
296 #define BASELINK_ACCESS_BINFO(NODE) \
297 (((struct tree_baselink*) BASELINK_CHECK (NODE))->access_binfo)
298 /* For a type-conversion operator, the BASELINK_OPTYPE indicates the type
299 to which the conversion should occur. This value is important if
300 the BASELINK_FUNCTIONS include a template conversion operator --
301 the BASELINK_OPTYPE can be used to determine what type the user
303 #define BASELINK_OPTYPE(NODE) \
304 (TREE_CHAIN (BASELINK_CHECK (NODE)))
306 struct tree_baselink GTY(())
308 struct tree_common common;
314 /* The different kinds of ids that we encounter. */
316 typedef enum cp_id_kind
318 /* Not an id at all. */
320 /* An unqualified-id that is not a template-id. */
321 CP_ID_KIND_UNQUALIFIED,
322 /* An unqualified-id that is a dependent name. */
323 CP_ID_KIND_UNQUALIFIED_DEPENDENT,
324 /* An unqualified template-id. */
325 CP_ID_KIND_TEMPLATE_ID,
326 /* A qualified-id. */
330 /* Macros for access to language-specific slots in an identifier. */
332 #define IDENTIFIER_NAMESPACE_BINDINGS(NODE) \
333 (LANG_IDENTIFIER_CAST (NODE)->namespace_bindings)
334 #define IDENTIFIER_TEMPLATE(NODE) \
335 (LANG_IDENTIFIER_CAST (NODE)->class_template_info)
337 /* The IDENTIFIER_BINDING is the innermost cxx_binding for the
338 identifier. It's PREVIOUS is the next outermost binding. Each
339 VALUE field is a DECL for the associated declaration. Thus,
340 name lookup consists simply of pulling off the node at the front
341 of the list (modulo oddities for looking up the names of types,
342 and such.) You can use SCOPE field to determine the scope
343 that bound the name. */
344 #define IDENTIFIER_BINDING(NODE) \
345 (LANG_IDENTIFIER_CAST (NODE)->bindings)
347 /* TREE_TYPE only indicates on local and class scope the current
348 type. For namespace scope, the presence of a type in any namespace
349 is indicated with global_type_node, and the real type behind must
350 be found through lookup. */
351 #define IDENTIFIER_TYPE_VALUE(NODE) identifier_type_value (NODE)
352 #define REAL_IDENTIFIER_TYPE_VALUE(NODE) TREE_TYPE (NODE)
353 #define SET_IDENTIFIER_TYPE_VALUE(NODE,TYPE) (TREE_TYPE (NODE) = (TYPE))
354 #define IDENTIFIER_HAS_TYPE_VALUE(NODE) (IDENTIFIER_TYPE_VALUE (NODE) ? 1 : 0)
356 #define IDENTIFIER_LABEL_VALUE(NODE) \
357 (LANG_IDENTIFIER_CAST (NODE)->label_value)
358 #define SET_IDENTIFIER_LABEL_VALUE(NODE, VALUE) \
359 IDENTIFIER_LABEL_VALUE (NODE) = (VALUE)
361 /* Nonzero if this identifier is used as a virtual function name somewhere
362 (optimizes searches). */
363 #define IDENTIFIER_VIRTUAL_P(NODE) TREE_LANG_FLAG_1 (NODE)
365 /* Nonzero if this identifier is the prefix for a mangled C++ operator
367 #define IDENTIFIER_OPNAME_P(NODE) TREE_LANG_FLAG_2 (NODE)
369 /* Nonzero if this identifier is the name of a type-conversion
371 #define IDENTIFIER_TYPENAME_P(NODE) \
372 TREE_LANG_FLAG_4 (NODE)
374 /* Nonzero if this identifier is the name of a constructor or
376 #define IDENTIFIER_CTOR_OR_DTOR_P(NODE) \
377 TREE_LANG_FLAG_3 (NODE)
379 /* True iff NAME is the DECL_ASSEMBLER_NAME for an entity with vague
380 linkage which the prelinker has assigned to this translation
382 #define IDENTIFIER_REPO_CHOSEN(NAME) \
383 (TREE_LANG_FLAG_6 (NAME))
385 /* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */
386 #define C_TYPE_FIELDS_READONLY(TYPE) \
387 (LANG_TYPE_CLASS_CHECK (TYPE)->fields_readonly)
389 /* The tokens stored in the default argument. */
391 #define DEFARG_TOKENS(NODE) \
392 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->tokens)
394 struct tree_default_arg GTY (())
396 struct tree_common common;
397 struct cp_token_cache *tokens;
400 enum cp_tree_node_structure_enum {
414 /* The resulting tree type. */
415 union lang_tree_node GTY((desc ("cp_tree_node_structure (&%h)"),
416 chain_next ("(union lang_tree_node *)TREE_CHAIN (&%h.generic)")))
418 union tree_node GTY ((tag ("TS_CP_GENERIC"),
419 desc ("tree_node_structure (&%h)"))) generic;
420 struct template_parm_index_s GTY ((tag ("TS_CP_TPI"))) tpi;
421 struct tinst_level_s GTY ((tag ("TS_CP_TINST_LEVEL"))) tinst_level;
422 struct ptrmem_cst GTY ((tag ("TS_CP_PTRMEM"))) ptrmem;
423 struct tree_overload GTY ((tag ("TS_CP_OVERLOAD"))) overload;
424 struct tree_baselink GTY ((tag ("TS_CP_BASELINK"))) baselink;
425 struct tree_default_arg GTY ((tag ("TS_CP_DEFAULT_ARG"))) default_arg;
426 struct lang_identifier GTY ((tag ("TS_CP_IDENTIFIER"))) identifier;
433 CPTI_JAVA_SHORT_TYPE,
436 CPTI_JAVA_FLOAT_TYPE,
437 CPTI_JAVA_DOUBLE_TYPE,
439 CPTI_JAVA_BOOLEAN_TYPE,
442 CPTI_VTABLE_ENTRY_TYPE,
444 CPTI_VTABLE_INDEX_TYPE,
454 CPTI_CLASS_DESC_TYPE,
455 CPTI_SI_CLASS_DESC_TYPE,
456 CPTI_VMI_CLASS_DESC_TYPE,
467 CPTI_TYPE_INFO_PTR_TYPE,
468 CPTI_TYPE_INFO_REF_TYPE,
470 CPTI_GLOBAL_DELETE_FNDECL,
473 CPTI_CTOR_IDENTIFIER,
474 CPTI_COMPLETE_CTOR_IDENTIFIER,
475 CPTI_BASE_CTOR_IDENTIFIER,
476 CPTI_DTOR_IDENTIFIER,
477 CPTI_COMPLETE_DTOR_IDENTIFIER,
478 CPTI_BASE_DTOR_IDENTIFIER,
479 CPTI_DELETING_DTOR_IDENTIFIER,
480 CPTI_DELTA_IDENTIFIER,
481 CPTI_IN_CHARGE_IDENTIFIER,
482 CPTI_VTT_PARM_IDENTIFIER,
483 CPTI_NELTS_IDENTIFIER,
484 CPTI_THIS_IDENTIFIER,
486 CPTI_VPTR_IDENTIFIER,
490 CPTI_LANG_NAME_CPLUSPLUS,
493 CPTI_EMPTY_EXCEPT_SPEC,
497 CPTI_CALL_UNEXPECTED,
507 extern GTY(()) tree cp_global_trees[CPTI_MAX];
509 #define java_byte_type_node cp_global_trees[CPTI_JAVA_BYTE_TYPE]
510 #define java_short_type_node cp_global_trees[CPTI_JAVA_SHORT_TYPE]
511 #define java_int_type_node cp_global_trees[CPTI_JAVA_INT_TYPE]
512 #define java_long_type_node cp_global_trees[CPTI_JAVA_LONG_TYPE]
513 #define java_float_type_node cp_global_trees[CPTI_JAVA_FLOAT_TYPE]
514 #define java_double_type_node cp_global_trees[CPTI_JAVA_DOUBLE_TYPE]
515 #define java_char_type_node cp_global_trees[CPTI_JAVA_CHAR_TYPE]
516 #define java_boolean_type_node cp_global_trees[CPTI_JAVA_BOOLEAN_TYPE]
518 #define wchar_decl_node cp_global_trees[CPTI_WCHAR_DECL]
519 #define vtable_entry_type cp_global_trees[CPTI_VTABLE_ENTRY_TYPE]
520 /* The type used to represent an offset by which to adjust the `this'
521 pointer in pointer-to-member types. */
522 #define delta_type_node cp_global_trees[CPTI_DELTA_TYPE]
523 /* The type used to represent an index into the vtable. */
524 #define vtable_index_type cp_global_trees[CPTI_VTABLE_INDEX_TYPE]
526 #define ti_desc_type_node cp_global_trees[CPTI_TI_DESC_TYPE]
527 #define bltn_desc_type_node cp_global_trees[CPTI_BLTN_DESC_TYPE]
528 #define ptr_desc_type_node cp_global_trees[CPTI_PTR_DESC_TYPE]
529 #define ary_desc_type_node cp_global_trees[CPTI_ARY_DESC_TYPE]
530 #define func_desc_type_node cp_global_trees[CPTI_FUNC_DESC_TYPE]
531 #define enum_desc_type_node cp_global_trees[CPTI_ENUM_DESC_TYPE]
532 #define class_desc_type_node cp_global_trees[CPTI_CLASS_DESC_TYPE]
533 #define si_class_desc_type_node cp_global_trees[CPTI_SI_CLASS_DESC_TYPE]
534 #define vmi_class_desc_type_node cp_global_trees[CPTI_VMI_CLASS_DESC_TYPE]
535 #define ptm_desc_type_node cp_global_trees[CPTI_PTM_DESC_TYPE]
536 #define base_desc_type_node cp_global_trees[CPTI_BASE_DESC_TYPE]
538 #define class_type_node cp_global_trees[CPTI_CLASS_TYPE]
539 #define unknown_type_node cp_global_trees[CPTI_UNKNOWN_TYPE]
540 #define vtbl_type_node cp_global_trees[CPTI_VTBL_TYPE]
541 #define vtbl_ptr_type_node cp_global_trees[CPTI_VTBL_PTR_TYPE]
542 #define std_node cp_global_trees[CPTI_STD]
543 #define abi_node cp_global_trees[CPTI_ABI]
544 #define type_info_type_node cp_global_trees[CPTI_TYPE_INFO_TYPE]
545 #define type_info_ptr_type cp_global_trees[CPTI_TYPE_INFO_PTR_TYPE]
546 #define type_info_ref_type cp_global_trees[CPTI_TYPE_INFO_REF_TYPE]
547 #define abort_fndecl cp_global_trees[CPTI_ABORT_FNDECL]
548 #define global_delete_fndecl cp_global_trees[CPTI_GLOBAL_DELETE_FNDECL]
549 #define current_aggr cp_global_trees[CPTI_AGGR_TAG]
551 /* We cache these tree nodes so as to call get_identifier less
554 /* The name of a constructor that takes an in-charge parameter to
555 decide whether or not to construct virtual base classes. */
556 #define ctor_identifier cp_global_trees[CPTI_CTOR_IDENTIFIER]
557 /* The name of a constructor that constructs virtual base classes. */
558 #define complete_ctor_identifier cp_global_trees[CPTI_COMPLETE_CTOR_IDENTIFIER]
559 /* The name of a constructor that does not construct virtual base classes. */
560 #define base_ctor_identifier cp_global_trees[CPTI_BASE_CTOR_IDENTIFIER]
561 /* The name of a destructor that takes an in-charge parameter to
562 decide whether or not to destroy virtual base classes and whether
563 or not to delete the object. */
564 #define dtor_identifier cp_global_trees[CPTI_DTOR_IDENTIFIER]
565 /* The name of a destructor that destroys virtual base classes. */
566 #define complete_dtor_identifier cp_global_trees[CPTI_COMPLETE_DTOR_IDENTIFIER]
567 /* The name of a destructor that does not destroy virtual base
569 #define base_dtor_identifier cp_global_trees[CPTI_BASE_DTOR_IDENTIFIER]
570 /* The name of a destructor that destroys virtual base classes, and
571 then deletes the entire object. */
572 #define deleting_dtor_identifier cp_global_trees[CPTI_DELETING_DTOR_IDENTIFIER]
573 #define delta_identifier cp_global_trees[CPTI_DELTA_IDENTIFIER]
574 #define in_charge_identifier cp_global_trees[CPTI_IN_CHARGE_IDENTIFIER]
575 /* The name of the parameter that contains a pointer to the VTT to use
576 for this subobject constructor or destructor. */
577 #define vtt_parm_identifier cp_global_trees[CPTI_VTT_PARM_IDENTIFIER]
578 #define nelts_identifier cp_global_trees[CPTI_NELTS_IDENTIFIER]
579 #define this_identifier cp_global_trees[CPTI_THIS_IDENTIFIER]
580 #define pfn_identifier cp_global_trees[CPTI_PFN_IDENTIFIER]
581 #define vptr_identifier cp_global_trees[CPTI_VPTR_IDENTIFIER]
582 /* The name of the std namespace. */
583 #define std_identifier cp_global_trees[CPTI_STD_IDENTIFIER]
584 #define lang_name_c cp_global_trees[CPTI_LANG_NAME_C]
585 #define lang_name_cplusplus cp_global_trees[CPTI_LANG_NAME_CPLUSPLUS]
586 #define lang_name_java cp_global_trees[CPTI_LANG_NAME_JAVA]
588 /* Exception specifier used for throw(). */
589 #define empty_except_spec cp_global_trees[CPTI_EMPTY_EXCEPT_SPEC]
591 /* The node for `__null'. */
592 #define null_node cp_global_trees[CPTI_NULL]
594 /* If non-NULL, a POINTER_TYPE equivalent to (java::lang::Class*). */
595 #define jclass_node cp_global_trees[CPTI_JCLASS]
597 /* The declaration for `std::terminate'. */
598 #define terminate_node cp_global_trees[CPTI_TERMINATE]
600 /* The declaration for "__cxa_call_unexpected". */
601 #define call_unexpected_node cp_global_trees[CPTI_CALL_UNEXPECTED]
603 /* A pointer to `std::atexit'. */
604 #define atexit_node cp_global_trees[CPTI_ATEXIT]
606 /* A pointer to `__dso_handle'. */
607 #define dso_handle_node cp_global_trees[CPTI_DSO_HANDLE]
609 /* The declaration of the dynamic_cast runtime. */
610 #define dynamic_cast_node cp_global_trees[CPTI_DCAST]
612 /* The type of a destructor. */
613 #define cleanup_type cp_global_trees[CPTI_CLEANUP_TYPE]
615 /* The type of the vtt parameter passed to subobject constructors and
617 #define vtt_parm_type cp_global_trees[CPTI_VTT_PARM_TYPE]
619 /* A TREE_LIST of the dynamic classes whose vtables may have to be
620 emitted in this translation unit. */
622 #define keyed_classes cp_global_trees[CPTI_KEYED_CLASSES]
624 /* Node to indicate default access. This must be distinct from the
625 access nodes in tree.h. */
627 #define access_default_node null_node
631 struct saved_scope GTY(())
633 VEC(cxx_saved_binding) *old_bindings;
638 tree access_specifier;
640 varray_type lang_base;
643 struct cp_binding_level *x_previous_class_level;
646 HOST_WIDE_INT x_processing_template_decl;
647 int x_processing_specialization;
648 bool x_processing_explicit_instantiation;
649 int need_pop_function_context;
651 struct stmt_tree_s x_stmt_tree;
653 struct cp_binding_level *class_bindings;
654 struct cp_binding_level *bindings;
656 struct saved_scope *prev;
659 /* The current open namespace. */
661 #define current_namespace scope_chain->old_namespace
663 /* The stack for namespaces of current declarations. */
665 #define decl_namespace_list scope_chain->decl_ns_list
667 /* IDENTIFIER_NODE: name of current class */
669 #define current_class_name scope_chain->class_name
671 /* _TYPE: the type of the current class */
673 #define current_class_type scope_chain->class_type
675 /* When parsing a class definition, the access specifier most recently
676 given by the user, or, if no access specifier was given, the
677 default value appropriate for the kind of class (i.e., struct,
680 #define current_access_specifier scope_chain->access_specifier
682 /* Pointer to the top of the language name stack. */
684 #define current_lang_base scope_chain->lang_base
685 #define current_lang_name scope_chain->lang_name
687 /* Parsing a function declarator leaves a list of parameter names
688 or a chain or parameter decls here. */
690 #define current_template_parms scope_chain->template_parms
692 #define processing_template_decl scope_chain->x_processing_template_decl
693 #define processing_specialization scope_chain->x_processing_specialization
694 #define processing_explicit_instantiation scope_chain->x_processing_explicit_instantiation
696 /* The cached class binding level, from the most recently exited
697 class, or NULL if none. */
699 #define previous_class_level scope_chain->x_previous_class_level
701 /* A list of private types mentioned, for deferred access checking. */
703 extern GTY(()) struct saved_scope *scope_chain;
705 /* Global state pertinent to the current function. */
707 struct language_function GTY(())
709 struct c_language_function base;
712 tree x_current_class_ptr;
713 tree x_current_class_ref;
714 tree x_eh_spec_block;
715 tree x_in_charge_parm;
721 int returns_abnormally;
722 int in_function_try_handler;
723 int in_base_initializer;
725 /* True if this function can throw an exception. */
726 BOOL_BITFIELD can_throw : 1;
728 struct named_label_use_list *x_named_label_uses;
729 struct named_label_list *x_named_labels;
730 struct cp_binding_level *bindings;
731 varray_type x_local_names;
734 /* The current C++-specific per-function global variables. */
736 #define cp_function_chain (cfun->language)
738 /* In a constructor destructor, the point at which all derived class
739 destroying/construction has been has been done. Ie. just before a
740 constructor returns, or before any base class destroying will be done
743 #define cdtor_label cp_function_chain->x_cdtor_label
745 /* When we're processing a member function, current_class_ptr is the
746 PARM_DECL for the `this' pointer. The current_class_ref is an
747 expression for `*this'. */
749 #define current_class_ptr \
750 (cfun ? cp_function_chain->x_current_class_ptr : NULL_TREE)
751 #define current_class_ref \
752 (cfun ? cp_function_chain->x_current_class_ref : NULL_TREE)
754 /* The EH_SPEC_BLOCK for the exception-specifiers for the current
757 #define current_eh_spec_block cp_function_chain->x_eh_spec_block
759 /* The `__in_chrg' parameter for the current function. Only used for
760 constructors and destructors. */
762 #define current_in_charge_parm cp_function_chain->x_in_charge_parm
764 /* The `__vtt_parm' parameter for the current function. Only used for
765 constructors and destructors. */
767 #define current_vtt_parm cp_function_chain->x_vtt_parm
769 /* Set to 0 at beginning of a function definition, set to 1 if
770 a return statement that specifies a return value is seen. */
772 #define current_function_returns_value cp_function_chain->returns_value
774 /* Set to 0 at beginning of a function definition, set to 1 if
775 a return statement with no argument is seen. */
777 #define current_function_returns_null cp_function_chain->returns_null
779 /* Set to 0 at beginning of a function definition, set to 1 if
780 a call to a noreturn function is seen. */
782 #define current_function_returns_abnormally \
783 cp_function_chain->returns_abnormally
785 /* Nonzero if we are processing a base initializer. Zero elsewhere. */
786 #define in_base_initializer cp_function_chain->in_base_initializer
788 #define in_function_try_handler cp_function_chain->in_function_try_handler
790 /* Expression always returned from function, or error_mark_node
791 otherwise, for use by the automatic named return value optimization. */
793 #define current_function_return_value \
794 (cp_function_chain->x_return_value)
796 /* True if NAME is the IDENTIFIER_NODE for an overloaded "operator
797 new" or "operator delete". */
798 #define NEW_DELETE_OPNAME_P(NAME) \
799 ((NAME) == ansi_opname (NEW_EXPR) \
800 || (NAME) == ansi_opname (VEC_NEW_EXPR) \
801 || (NAME) == ansi_opname (DELETE_EXPR) \
802 || (NAME) == ansi_opname (VEC_DELETE_EXPR))
804 #define ansi_opname(CODE) \
805 (operator_name_info[(int) (CODE)].identifier)
806 #define ansi_assopname(CODE) \
807 (assignment_operator_name_info[(int) (CODE)].identifier)
809 /* True if NODE is an erroneous expression. */
811 #define error_operand_p(NODE) \
812 ((NODE) == error_mark_node \
813 || ((NODE) && TREE_TYPE ((NODE)) == error_mark_node))
815 /* C++ language-specific tree codes. */
816 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) SYM,
817 enum cplus_tree_code {
818 CP_DUMMY_TREE_CODE = LAST_C_TREE_CODE,
819 #include "cp-tree.def"
824 #define cp_stmt_codes \
825 CTOR_INITIALIZER, TRY_BLOCK, HANDLER, \
826 EH_SPEC_BLOCK, USING_STMT, TAG_DEFN, \
827 IF_STMT, CLEANUP_STMT
829 enum languages { lang_c, lang_cplusplus, lang_java };
831 /* Macros to make error reporting functions' lives easier. */
832 #define TYPE_IDENTIFIER(NODE) (DECL_NAME (TYPE_NAME (NODE)))
833 #define TYPE_LINKAGE_IDENTIFIER(NODE) \
834 (TYPE_IDENTIFIER (TYPE_MAIN_VARIANT (NODE)))
835 #define TYPE_NAME_STRING(NODE) (IDENTIFIER_POINTER (TYPE_IDENTIFIER (NODE)))
836 #define TYPE_NAME_LENGTH(NODE) (IDENTIFIER_LENGTH (TYPE_IDENTIFIER (NODE)))
838 /* Nonzero if NODE has no name for linkage purposes. */
839 #define TYPE_ANONYMOUS_P(NODE) \
840 (TAGGED_TYPE_P (NODE) && ANON_AGGRNAME_P (TYPE_LINKAGE_IDENTIFIER (NODE)))
842 /* The _DECL for this _TYPE. */
843 #define TYPE_MAIN_DECL(NODE) (TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE)))
845 /* Nonzero if T is a class (or struct or union) type. Also nonzero
846 for template type parameters, typename types, and instantiated
847 template template parameters. Despite its name,
848 this macro has nothing to do with the definition of aggregate given
849 in the standard. Think of this macro as MAYBE_CLASS_TYPE_P. */
850 #define IS_AGGR_TYPE(T) \
851 (TREE_CODE (T) == TEMPLATE_TYPE_PARM \
852 || TREE_CODE (T) == TYPENAME_TYPE \
853 || TREE_CODE (T) == TYPEOF_TYPE \
854 || TREE_CODE (T) == BOUND_TEMPLATE_TEMPLATE_PARM \
855 || TYPE_LANG_FLAG_5 (T))
857 /* Set IS_AGGR_TYPE for T to VAL. T must be a class, struct, or
859 #define SET_IS_AGGR_TYPE(T, VAL) \
860 (TYPE_LANG_FLAG_5 (T) = (VAL))
862 /* Nonzero if T is a class type. Zero for template type parameters,
863 typename types, and so forth. */
864 #define CLASS_TYPE_P(T) \
865 (IS_AGGR_TYPE_CODE (TREE_CODE (T)) && IS_AGGR_TYPE (T))
867 #define IS_AGGR_TYPE_CODE(T) ((T) == RECORD_TYPE || (T) == UNION_TYPE)
868 #define TAGGED_TYPE_P(T) \
869 (CLASS_TYPE_P (T) || TREE_CODE (T) == ENUMERAL_TYPE)
870 #define IS_OVERLOAD_TYPE(T) TAGGED_TYPE_P (T)
872 /* True if this a "Java" type, defined in 'extern "Java"'. */
873 #define TYPE_FOR_JAVA(NODE) TYPE_LANG_FLAG_3 (NODE)
875 /* True if this type is dependent. This predicate is only valid if
876 TYPE_DEPENDENT_P_VALID is true. */
877 #define TYPE_DEPENDENT_P(NODE) TYPE_LANG_FLAG_0 (NODE)
879 /* True if dependent_type_p has been called for this type, with the
880 result that TYPE_DEPENDENT_P is valid. */
881 #define TYPE_DEPENDENT_P_VALID(NODE) TYPE_LANG_FLAG_6(NODE)
883 /* Nonzero if this type is const-qualified. */
884 #define CP_TYPE_CONST_P(NODE) \
885 ((cp_type_quals (NODE) & TYPE_QUAL_CONST) != 0)
887 /* Nonzero if this type is volatile-qualified. */
888 #define CP_TYPE_VOLATILE_P(NODE) \
889 ((cp_type_quals (NODE) & TYPE_QUAL_VOLATILE) != 0)
891 /* Nonzero if this type is restrict-qualified. */
892 #define CP_TYPE_RESTRICT_P(NODE) \
893 ((cp_type_quals (NODE) & TYPE_QUAL_RESTRICT) != 0)
895 /* Nonzero if this type is const-qualified, but not
896 volatile-qualified. Other qualifiers are ignored. This macro is
897 used to test whether or not it is OK to bind an rvalue to a
899 #define CP_TYPE_CONST_NON_VOLATILE_P(NODE) \
900 ((cp_type_quals (NODE) & (TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE)) \
903 #define FUNCTION_ARG_CHAIN(NODE) \
904 TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (NODE)))
906 /* Given a FUNCTION_DECL, returns the first TREE_LIST out of TYPE_ARG_TYPES
907 which refers to a user-written parameter. */
908 #define FUNCTION_FIRST_USER_PARMTYPE(NODE) \
909 skip_artificial_parms_for ((NODE), TYPE_ARG_TYPES (TREE_TYPE (NODE)))
911 /* Similarly, but for DECL_ARGUMENTS. */
912 #define FUNCTION_FIRST_USER_PARM(NODE) \
913 skip_artificial_parms_for ((NODE), DECL_ARGUMENTS (NODE))
915 #define PROMOTES_TO_AGGR_TYPE(NODE, CODE) \
916 (((CODE) == TREE_CODE (NODE) \
917 && IS_AGGR_TYPE (TREE_TYPE (NODE))) \
918 || IS_AGGR_TYPE (NODE))
920 /* Nonzero iff TYPE is derived from PARENT. Ignores accessibility and
922 #define DERIVED_FROM_P(PARENT, TYPE) \
923 (lookup_base ((TYPE), (PARENT), ba_any, NULL) != NULL_TREE)
924 /* Nonzero iff TYPE is uniquely derived from PARENT. Ignores
926 #define UNIQUELY_DERIVED_FROM_P(PARENT, TYPE) \
927 (lookup_base ((TYPE), (PARENT), ba_ignore | ba_quiet, NULL) != NULL_TREE)
928 /* Nonzero iff TYPE is accessible in the current scope and uniquely
929 derived from PARENT. */
930 #define ACCESSIBLY_UNIQUELY_DERIVED_P(PARENT, TYPE) \
931 (lookup_base ((TYPE), (PARENT), ba_check | ba_quiet, NULL) != NULL_TREE)
932 /* Nonzero iff TYPE is publicly & uniquely derived from PARENT. */
933 #define PUBLICLY_UNIQUELY_DERIVED_P(PARENT, TYPE) \
934 (lookup_base ((TYPE), (PARENT), ba_not_special | ba_quiet, NULL) \
937 /* Gives the visibility specification for a class type. */
938 #define CLASSTYPE_VISIBILITY(TYPE) \
939 DECL_VISIBILITY (TYPE_NAME (TYPE))
940 #define CLASSTYPE_VISIBILITY_SPECIFIED(TYPE) \
941 DECL_VISIBILITY_SPECIFIED (TYPE_NAME (TYPE))
943 typedef struct tree_pair_s GTY (())
948 typedef tree_pair_s *tree_pair_p;
949 DEF_VEC_GC_O (tree_pair_s);
951 /* This is a few header flags for 'struct lang_type'. Actually,
952 all but the first are used only for lang_type_class; they
953 are put in this structure to save space. */
954 struct lang_type_header GTY(())
956 BOOL_BITFIELD is_lang_type_class : 1;
958 BOOL_BITFIELD has_type_conversion : 1;
959 BOOL_BITFIELD has_init_ref : 1;
960 BOOL_BITFIELD has_default_ctor : 1;
961 BOOL_BITFIELD const_needs_init : 1;
962 BOOL_BITFIELD ref_needs_init : 1;
963 BOOL_BITFIELD has_const_assign_ref : 1;
965 BOOL_BITFIELD spare : 1;
968 /* This structure provides additional information above and beyond
969 what is provide in the ordinary tree_type. In the past, we used it
970 for the types of class types, template parameters types, typename
971 types, and so forth. However, there can be many (tens to hundreds
972 of thousands) of template parameter types in a compilation, and
973 there's no need for this additional information in that case.
974 Therefore, we now use this data structure only for class types.
976 In the past, it was thought that there would be relatively few
977 class types. However, in the presence of heavy use of templates,
978 many (i.e., thousands) of classes can easily be generated.
979 Therefore, we should endeavor to keep the size of this structure to
981 struct lang_type_class GTY(())
983 struct lang_type_header h;
987 unsigned has_mutable : 1;
988 unsigned com_interface : 1;
989 unsigned non_pod_class : 1;
990 unsigned nearly_empty_p : 1;
991 unsigned user_align : 1;
992 unsigned has_assign_ref : 1;
993 unsigned has_new : 1;
994 unsigned has_array_new : 1;
996 unsigned gets_delete : 2;
997 unsigned interface_only : 1;
998 unsigned interface_unknown : 1;
999 unsigned contains_empty_class_p : 1;
1000 unsigned anon_aggr : 1;
1001 unsigned non_zero_init : 1;
1002 unsigned empty_p : 1;
1004 unsigned vec_new_uses_cookie : 1;
1005 unsigned declared_class : 1;
1006 unsigned diamond_shaped : 1;
1007 unsigned repeated_base : 1;
1008 unsigned being_defined : 1;
1009 unsigned redefined : 1;
1010 unsigned debug_requested : 1;
1011 unsigned fields_readonly : 1;
1013 unsigned use_template : 2;
1014 unsigned ptrmemfunc_flag : 1;
1015 unsigned was_anonymous : 1;
1016 unsigned lazy_default_ctor : 1;
1017 unsigned lazy_copy_ctor : 1;
1018 unsigned lazy_assignment_op : 1;
1019 unsigned has_const_init_ref : 1;
1021 unsigned has_complex_init_ref : 1;
1022 unsigned has_complex_assign_ref : 1;
1023 unsigned non_aggregate : 1;
1024 unsigned java_interface : 1;
1026 /* When adding a flag here, consider whether or not it ought to
1027 apply to a template instance if it applies to the template. If
1028 so, make sure to copy it in instantiate_class_template! */
1030 /* There are some bits left to fill out a 32-bit word. Keep track
1031 of this by updating the size of this bitfield whenever you add or
1033 unsigned dummy : 12;
1036 VEC (tree_pair_s) *vcall_indices;
1040 binding_table nested_udts;
1042 VEC (tree) *pure_virtuals;
1043 tree friend_classes;
1044 VEC (tree) * GTY((reorder ("resort_type_method_vec"))) methods;
1048 tree befriending_classes;
1051 struct lang_type_ptrmem GTY(())
1053 struct lang_type_header h;
1057 struct lang_type GTY(())
1061 struct lang_type_header GTY((skip (""))) h;
1062 struct lang_type_class GTY((tag ("1"))) c;
1063 struct lang_type_ptrmem GTY((tag ("0"))) ptrmem;
1064 } GTY((desc ("%h.h.is_lang_type_class"))) u;
1067 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1069 #define LANG_TYPE_CLASS_CHECK(NODE) __extension__ \
1070 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1071 if (! lt->u.h.is_lang_type_class) \
1072 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1075 #define LANG_TYPE_PTRMEM_CHECK(NODE) __extension__ \
1076 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1077 if (lt->u.h.is_lang_type_class) \
1078 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1083 #define LANG_TYPE_CLASS_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.c)
1084 #define LANG_TYPE_PTRMEM_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.ptrmem)
1086 #endif /* ENABLE_TREE_CHECKING */
1088 /* Indicates whether or not (and how) a template was expanded for this class.
1089 0=no information yet/non-template class
1090 1=implicit template instantiation
1091 2=explicit template specialization
1092 3=explicit template instantiation */
1093 #define CLASSTYPE_USE_TEMPLATE(NODE) \
1094 (LANG_TYPE_CLASS_CHECK (NODE)->use_template)
1096 /* Fields used for storing information before the class is defined.
1097 After the class is defined, these fields hold other information. */
1099 /* VEC(tree) of friends which were defined inline in this class
1101 #define CLASSTYPE_INLINE_FRIENDS(NODE) CLASSTYPE_PURE_VIRTUALS (NODE)
1103 /* Nonzero for _CLASSTYPE means that operator delete is defined. */
1104 #define TYPE_GETS_DELETE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->gets_delete)
1105 #define TYPE_GETS_REG_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 1)
1107 /* Nonzero if `new NODE[x]' should cause the allocation of extra
1108 storage to indicate how many array elements are in use. */
1109 #define TYPE_VEC_NEW_USES_COOKIE(NODE) \
1110 (CLASS_TYPE_P (NODE) \
1111 && LANG_TYPE_CLASS_CHECK (NODE)->vec_new_uses_cookie)
1113 /* Nonzero means that this _CLASSTYPE node defines ways of converting
1114 itself to other types. */
1115 #define TYPE_HAS_CONVERSION(NODE) \
1116 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_type_conversion)
1118 /* Nonzero means that NODE (a class type) has a default constructor --
1119 but that it has not yet been declared. */
1120 #define CLASSTYPE_LAZY_DEFAULT_CTOR(NODE) \
1121 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_default_ctor)
1123 /* Nonzero means that NODE (a class type) has a copy constructor --
1124 but that it has not yet been declared. */
1125 #define CLASSTYPE_LAZY_COPY_CTOR(NODE) \
1126 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_ctor)
1128 /* Nonzero means that NODE (a class type) has an assignment operator
1129 -- but that it has not yet been declared. */
1130 #define CLASSTYPE_LAZY_ASSIGNMENT_OP(NODE) \
1131 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_assignment_op)
1133 /* Nonzero means that this _CLASSTYPE node overloads operator=(X&). */
1134 #define TYPE_HAS_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_assign_ref)
1136 /* True iff the class type NODE has an "operator =" whose parameter
1137 has a parameter of type "const X&". */
1138 #define TYPE_HAS_CONST_ASSIGN_REF(NODE) \
1139 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_const_assign_ref)
1141 /* Nonzero means that this _CLASSTYPE node has an X(X&) constructor. */
1142 #define TYPE_HAS_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->h.has_init_ref)
1143 #define TYPE_HAS_CONST_INIT_REF(NODE) \
1144 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_init_ref)
1146 /* Nonzero if this class defines an overloaded operator new. (An
1147 operator new [] doesn't count.) */
1148 #define TYPE_HAS_NEW_OPERATOR(NODE) \
1149 (LANG_TYPE_CLASS_CHECK (NODE)->has_new)
1151 /* Nonzero if this class defines an overloaded operator new[]. */
1152 #define TYPE_HAS_ARRAY_NEW_OPERATOR(NODE) \
1153 (LANG_TYPE_CLASS_CHECK (NODE)->has_array_new)
1155 /* Nonzero means that this type is being defined. I.e., the left brace
1156 starting the definition of this type has been seen. */
1157 #define TYPE_BEING_DEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->being_defined)
1158 /* Nonzero means that this type has been redefined. In this case, if
1159 convenient, don't reprocess any methods that appear in its redefinition. */
1160 #define TYPE_REDEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->redefined)
1162 /* Mark bits for repeated base checks. */
1163 #define TYPE_MARKED_P(NODE) TREE_LANG_FLAG_6 (TYPE_CHECK (NODE))
1165 /* Non-zero if the class NODE has multiple paths to the same (virtual)
1167 #define CLASSTYPE_DIAMOND_SHAPED_P(NODE) \
1168 (LANG_TYPE_CLASS_CHECK(NODE)->diamond_shaped)
1170 /* Non-zero if the class NODE has multiple instances of the same base
1172 #define CLASSTYPE_REPEATED_BASE_P(NODE) \
1173 (LANG_TYPE_CLASS_CHECK(NODE)->repeated_base)
1175 /* The member function with which the vtable will be emitted:
1176 the first noninline non-pure-virtual member function. NULL_TREE
1177 if there is no key function or if this is a class template */
1178 #define CLASSTYPE_KEY_METHOD(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->key_method)
1180 /* Vector member functions defined in this class. Each element is
1181 either a FUNCTION_DECL, a TEMPLATE_DECL, or an OVERLOAD. All
1182 functions with the same name end up in the same slot. The first
1183 two elements are for constructors, and destructors, respectively.
1184 All template conversion operators to innermost template dependent
1185 types are overloaded on the next slot, if they exist. Note, the
1186 names for these functions will not all be the same. The
1187 non-template conversion operators & templated conversions to
1188 non-innermost template types are next, followed by ordinary member
1189 functions. There may be empty entries at the end of the vector.
1190 The conversion operators are unsorted. The ordinary member
1191 functions are sorted, once the class is complete. */
1192 #define CLASSTYPE_METHOD_VEC(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->methods)
1194 /* For class templates, this is a TREE_LIST of all member data,
1195 functions, types, and friends in the order of declaration.
1196 The TREE_PURPOSE of each TREE_LIST is NULL_TREE for a friend,
1197 and the RECORD_TYPE for the class template otherwise. */
1198 #define CLASSTYPE_DECL_LIST(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->decl_list)
1200 /* The slot in the CLASSTYPE_METHOD_VEC where constructors go. */
1201 #define CLASSTYPE_CONSTRUCTOR_SLOT 0
1203 /* The slot in the CLASSTYPE_METHOD_VEC where destructors go. */
1204 #define CLASSTYPE_DESTRUCTOR_SLOT 1
1206 /* The first slot in the CLASSTYPE_METHOD_VEC where conversion
1207 operators can appear. */
1208 #define CLASSTYPE_FIRST_CONVERSION_SLOT 2
1210 /* A FUNCTION_DECL or OVERLOAD for the constructors for NODE. These
1211 are the constructors that take an in-charge parameter. */
1212 #define CLASSTYPE_CONSTRUCTORS(NODE) \
1213 (VEC_index (tree, CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_CONSTRUCTOR_SLOT))
1215 /* A FUNCTION_DECL for the destructor for NODE. These are the
1216 destructors that take an in-charge parameter. */
1217 #define CLASSTYPE_DESTRUCTORS(NODE) \
1218 (VEC_index (tree, CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_DESTRUCTOR_SLOT))
1220 /* A dictionary of the nested user-defined-types (class-types, or enums)
1221 found within this class. This table includes nested member class
1223 #define CLASSTYPE_NESTED_UTDS(NODE) \
1224 (LANG_TYPE_CLASS_CHECK (NODE)->nested_udts)
1226 /* Nonzero if NODE has a primary base class, i.e., a base class with
1227 which it shares the virtual function table pointer. */
1228 #define CLASSTYPE_HAS_PRIMARY_BASE_P(NODE) \
1229 (CLASSTYPE_PRIMARY_BINFO (NODE) != NULL_TREE)
1231 /* If non-NULL, this is the binfo for the primary base class, i.e.,
1232 the base class which contains the virtual function table pointer
1234 #define CLASSTYPE_PRIMARY_BINFO(NODE) \
1235 (LANG_TYPE_CLASS_CHECK (NODE)->primary_base)
1237 /* A vector of BINFOs for the direct and indirect virtual base classes
1238 that this type uses in a post-order depth-first left-to-right
1239 order. (In other words, these bases appear in the order that they
1240 should be initialized.) */
1241 #define CLASSTYPE_VBASECLASSES(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->vbases)
1243 /* The type corresponding to NODE when NODE is used as a base class,
1244 i.e., NODE without virtual base classes. */
1246 #define CLASSTYPE_AS_BASE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->as_base)
1248 /* True iff NODE is the CLASSTYPE_AS_BASE version of some type. */
1250 #define IS_FAKE_BASE_TYPE(NODE) \
1251 (TREE_CODE (NODE) == RECORD_TYPE \
1252 && TYPE_CONTEXT (NODE) && CLASS_TYPE_P (TYPE_CONTEXT (NODE)) \
1253 && CLASSTYPE_AS_BASE (TYPE_CONTEXT (NODE)) == (NODE))
1255 /* These are the size and alignment of the type without its virtual
1256 base classes, for when we use this type as a base itself. */
1257 #define CLASSTYPE_SIZE(NODE) TYPE_SIZE (CLASSTYPE_AS_BASE (NODE))
1258 #define CLASSTYPE_SIZE_UNIT(NODE) TYPE_SIZE_UNIT (CLASSTYPE_AS_BASE (NODE))
1259 #define CLASSTYPE_ALIGN(NODE) TYPE_ALIGN (CLASSTYPE_AS_BASE (NODE))
1260 #define CLASSTYPE_USER_ALIGN(NODE) TYPE_USER_ALIGN (CLASSTYPE_AS_BASE (NODE))
1262 /* The alignment of NODE, without its virtual bases, in bytes. */
1263 #define CLASSTYPE_ALIGN_UNIT(NODE) \
1264 (CLASSTYPE_ALIGN (NODE) / BITS_PER_UNIT)
1266 /* True if this a Java interface type, declared with
1267 '__attribute__ ((java_interface))'. */
1268 #define TYPE_JAVA_INTERFACE(NODE) \
1269 (LANG_TYPE_CLASS_CHECK (NODE)->java_interface)
1271 /* A VEC(tree) of virtual functions which cannot be inherited by
1272 derived classes. When deriving from this type, the derived
1273 class must provide its own definition for each of these functions. */
1274 #define CLASSTYPE_PURE_VIRTUALS(NODE) \
1275 (LANG_TYPE_CLASS_CHECK (NODE)->pure_virtuals)
1277 /* Nonzero means that this type has an X() constructor. */
1278 #define TYPE_HAS_DEFAULT_CONSTRUCTOR(NODE) \
1279 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_default_ctor)
1281 /* Nonzero means that this type contains a mutable member. */
1282 #define CLASSTYPE_HAS_MUTABLE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_mutable)
1283 #define TYPE_HAS_MUTABLE_P(NODE) (cp_has_mutable_p (NODE))
1285 /* Nonzero means that this class type is a non-POD class. */
1286 #define CLASSTYPE_NON_POD_P(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->non_pod_class)
1288 /* Nonzero means that this class contains pod types whose default
1289 initialization is not a zero initialization (namely, pointers to
1291 #define CLASSTYPE_NON_ZERO_INIT_P(NODE) \
1292 (LANG_TYPE_CLASS_CHECK (NODE)->non_zero_init)
1294 /* Nonzero if this class is "empty" in the sense of the C++ ABI. */
1295 #define CLASSTYPE_EMPTY_P(NODE) \
1296 (LANG_TYPE_CLASS_CHECK (NODE)->empty_p)
1298 /* Nonzero if this class is "nearly empty", i.e., contains only a
1299 virtual function table pointer. */
1300 #define CLASSTYPE_NEARLY_EMPTY_P(NODE) \
1301 (LANG_TYPE_CLASS_CHECK (NODE)->nearly_empty_p)
1303 /* Nonzero if this class contains an empty subobject. */
1304 #define CLASSTYPE_CONTAINS_EMPTY_CLASS_P(NODE) \
1305 (LANG_TYPE_CLASS_CHECK (NODE)->contains_empty_class_p)
1307 /* A list of class types of which this type is a friend. The
1308 TREE_VALUE is normally a TYPE, but will be a TEMPLATE_DECL in the
1309 case of a template friend. */
1310 #define CLASSTYPE_FRIEND_CLASSES(NODE) \
1311 (LANG_TYPE_CLASS_CHECK (NODE)->friend_classes)
1313 /* A list of the classes which grant friendship to this class. */
1314 #define CLASSTYPE_BEFRIENDING_CLASSES(NODE) \
1315 (LANG_TYPE_CLASS_CHECK (NODE)->befriending_classes)
1317 /* Say whether this node was declared as a "class" or a "struct". */
1318 #define CLASSTYPE_DECLARED_CLASS(NODE) \
1319 (LANG_TYPE_CLASS_CHECK (NODE)->declared_class)
1321 /* Nonzero if this class has const members
1322 which have no specified initialization. */
1323 #define CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE) \
1324 (TYPE_LANG_SPECIFIC (NODE) \
1325 ? LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init : 0)
1326 #define SET_CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE, VALUE) \
1327 (LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init = (VALUE))
1329 /* Nonzero if this class has ref members
1330 which have no specified initialization. */
1331 #define CLASSTYPE_REF_FIELDS_NEED_INIT(NODE) \
1332 (TYPE_LANG_SPECIFIC (NODE) \
1333 ? LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init : 0)
1334 #define SET_CLASSTYPE_REF_FIELDS_NEED_INIT(NODE, VALUE) \
1335 (LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init = (VALUE))
1337 /* Nonzero if this class is included from a header file which employs
1338 `#pragma interface', and it is not included in its implementation file. */
1339 #define CLASSTYPE_INTERFACE_ONLY(NODE) \
1340 (LANG_TYPE_CLASS_CHECK (NODE)->interface_only)
1342 /* True if we have already determined whether or not vtables, VTTs,
1343 typeinfo, and other similar per-class data should be emitted in
1344 this translation unit. This flag does not indicate whether or not
1345 these items should be emitted; it only indicates that we know one
1346 way or the other. */
1347 #define CLASSTYPE_INTERFACE_KNOWN(NODE) \
1348 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown == 0)
1349 /* The opposite of CLASSTYPE_INTERFACE_KNOWN. */
1350 #define CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1351 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown)
1353 #define SET_CLASSTYPE_INTERFACE_UNKNOWN_X(NODE,X) \
1354 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = !!(X))
1355 #define SET_CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1356 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 1)
1357 #define SET_CLASSTYPE_INTERFACE_KNOWN(NODE) \
1358 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 0)
1360 /* Nonzero if a _DECL node requires us to output debug info for this class. */
1361 #define CLASSTYPE_DEBUG_REQUESTED(NODE) \
1362 (LANG_TYPE_CLASS_CHECK (NODE)->debug_requested)
1364 /* Additional macros for inheritance information. */
1366 /* Nonzero means that this class is on a path leading to a new vtable. */
1367 #define BINFO_VTABLE_PATH_MARKED(NODE) BINFO_FLAG_1 (NODE)
1369 /* Nonzero means B (a BINFO) has its own vtable. Any copies will not
1370 have this flag set. */
1371 #define BINFO_NEW_VTABLE_MARKED(B) (BINFO_FLAG_2 (B))
1373 /* Any subobject that needs a new vtable must have a vptr and must not
1374 be a non-virtual primary base (since it would then use the vtable from a
1375 derived class and never become non-primary.) */
1376 #define SET_BINFO_NEW_VTABLE_MARKED(B) \
1377 (BINFO_NEW_VTABLE_MARKED (B) = 1, \
1378 gcc_assert (!BINFO_PRIMARY_P (B) || BINFO_VIRTUAL_P (B)), \
1379 gcc_assert (TYPE_VFIELD (BINFO_TYPE (B))))
1381 /* Nonzero if this binfo is for a dependent base - one that should not
1383 #define BINFO_DEPENDENT_BASE_P(NODE) BINFO_FLAG_3 (NODE)
1385 /* Nonzero if this binfo has lost its primary base binfo (because that
1386 is a nearly-empty virtual base that has been taken by some other
1387 base in the complete hierarchy. */
1388 #define BINFO_LOST_PRIMARY_P(NODE) BINFO_FLAG_4 (NODE)
1390 /* Nonzero if this BINFO is a primary base class. */
1391 #define BINFO_PRIMARY_P(NODE) BINFO_FLAG_5(NODE)
1393 /* Used by various search routines. */
1394 #define IDENTIFIER_MARKED(NODE) TREE_LANG_FLAG_0 (NODE)
1396 /* A VEC(tree_pair_s) of the vcall indices associated with the class
1397 NODE. The PURPOSE of each element is a FUNCTION_DECL for a virtual
1398 function. The VALUE is the index into the virtual table where the
1399 vcall offset for that function is stored, when NODE is a virtual
1401 #define CLASSTYPE_VCALL_INDICES(NODE) \
1402 (LANG_TYPE_CLASS_CHECK (NODE)->vcall_indices)
1404 /* The various vtables for the class NODE. The primary vtable will be
1405 first, followed by the construction vtables and VTT, if any. */
1406 #define CLASSTYPE_VTABLES(NODE) \
1407 (LANG_TYPE_CLASS_CHECK (NODE)->vtables)
1409 /* The std::type_info variable representing this class, or NULL if no
1410 such variable has been created. This field is only set for the
1411 TYPE_MAIN_VARIANT of the class. */
1412 #define CLASSTYPE_TYPEINFO_VAR(NODE) \
1413 (LANG_TYPE_CLASS_CHECK (NODE)->typeinfo_var)
1415 /* Accessor macros for the vfield slots in structures. */
1417 /* Get the BINFO that introduced this vtable into the hierarchy (will
1418 be NULL for those created at this level, or from a primary
1420 #define VF_BINFO_VALUE(NODE) TREE_PURPOSE (NODE)
1422 /* Get the TYPE that introduced this vtable into the hierarchy (always
1424 #define VF_BASETYPE_VALUE(NODE) TREE_VALUE (NODE)
1426 /* Accessor macros for the BINFO_VIRTUALS list. */
1428 /* The number of bytes by which to adjust the `this' pointer when
1429 calling this virtual function. Subtract this value from the this
1430 pointer. Always non-NULL, might be constant zero though. */
1431 #define BV_DELTA(NODE) (TREE_PURPOSE (NODE))
1433 /* If non-NULL, the vtable index at which to find the vcall offset
1434 when calling this virtual function. Add the value at that vtable
1435 index to the this pointer. */
1436 #define BV_VCALL_INDEX(NODE) (TREE_TYPE (NODE))
1438 /* The function to call. */
1439 #define BV_FN(NODE) (TREE_VALUE (NODE))
1442 /* For FUNCTION_TYPE or METHOD_TYPE, a list of the exceptions that
1443 this type can raise. Each TREE_VALUE is a _TYPE. The TREE_VALUE
1444 will be NULL_TREE to indicate a throw specification of `()', or
1445 no exceptions allowed. */
1446 #define TYPE_RAISES_EXCEPTIONS(NODE) TYPE_LANG_SLOT_1 (NODE)
1448 /* For FUNCTION_TYPE or METHOD_TYPE, return 1 iff it is declared `throw()'. */
1449 #define TYPE_NOTHROW_P(NODE) \
1450 (TYPE_RAISES_EXCEPTIONS (NODE) \
1451 && TREE_VALUE (TYPE_RAISES_EXCEPTIONS (NODE)) == NULL_TREE)
1453 /* The binding level associated with the namespace. */
1454 #define NAMESPACE_LEVEL(NODE) \
1455 (DECL_LANG_SPECIFIC (NODE)->decl_flags.u.level)
1458 /* If a DECL has DECL_LANG_SPECIFIC, it is either a lang_decl_flags or
1459 a lang_decl (which has lang_decl_flags as its initial prefix).
1460 This macro is nonzero for tree nodes whose DECL_LANG_SPECIFIC is
1461 the full lang_decl, and not just lang_decl_flags. */
1462 #define CAN_HAVE_FULL_LANG_DECL_P(NODE) \
1463 (!(TREE_CODE (NODE) == VAR_DECL \
1464 || TREE_CODE (NODE) == CONST_DECL \
1465 || TREE_CODE (NODE) == FIELD_DECL \
1466 || TREE_CODE (NODE) == USING_DECL))
1468 struct lang_decl_flags GTY(())
1470 ENUM_BITFIELD(languages) language : 4;
1471 unsigned global_ctor_p : 1;
1472 unsigned global_dtor_p : 1;
1473 unsigned anticipated_p : 1;
1474 unsigned template_conv_p : 1;
1476 unsigned operator_attr : 1;
1477 unsigned constructor_attr : 1;
1478 unsigned destructor_attr : 1;
1479 unsigned friend_attr : 1;
1480 unsigned static_function : 1;
1481 unsigned pure_virtual : 1;
1482 unsigned has_in_charge_parm_p : 1;
1483 unsigned has_vtt_parm_p : 1;
1485 unsigned deferred : 1;
1486 unsigned use_template : 2;
1487 unsigned nonconverting : 1;
1488 unsigned not_really_extern : 1;
1489 unsigned initialized_in_class : 1;
1490 unsigned assignment_operator_p : 1;
1494 unsigned can_be_full : 1;
1495 unsigned this_thunk_p : 1;
1496 unsigned repo_available_p : 1;
1500 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
1502 In a FUNCTION_DECL for which DECL_THUNK_P does not hold,
1503 VAR_DECL, TYPE_DECL, or TEMPLATE_DECL, this is
1504 DECL_TEMPLATE_INFO. */
1505 tree GTY ((tag ("0"))) template_info;
1507 /* In a NAMESPACE_DECL, this is NAMESPACE_LEVEL. */
1508 struct cp_binding_level * GTY ((tag ("1"))) level;
1509 } GTY ((desc ("%1.u1sel"))) u;
1511 union lang_decl_u2 {
1512 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
1513 THUNK_VIRTUAL_OFFSET.
1514 Otherwise this is DECL_ACCESS. */
1515 tree GTY ((tag ("0"))) access;
1517 /* For VAR_DECL in function, this is DECL_DISCRIMINATOR. */
1518 int GTY ((tag ("1"))) discriminator;
1519 } GTY ((desc ("%1.u2sel"))) u2;
1522 /* sorted_fields is sorted based on a pointer, so we need to be able
1523 to resort it if pointers get rearranged. */
1525 struct lang_decl GTY(())
1527 struct lang_decl_flags decl_flags;
1531 struct full_lang_decl
1533 /* In an overloaded operator, this is the value of
1534 DECL_OVERLOADED_OPERATOR_P. */
1535 ENUM_BITFIELD (tree_code) operator_code : 8;
1538 unsigned pending_inline_p : 1;
1541 /* In a FUNCTION_DECL for which THUNK_P holds this is the
1542 THUNK_FIXED_OFFSET. The largest object that can be
1543 thunked is thus 262144, which is what is required [limits].
1544 We have to store a signed value as for regular thunks this
1545 is <= 0, and for covariant thunks it is >= 0. */
1546 signed fixed_offset : 19;
1548 /* For a non-thunk function decl, this is a tree list of
1549 friendly classes. For a thunk function decl, it is the
1550 thunked to function decl. */
1551 tree befriending_classes;
1553 /* For a non-virtual FUNCTION_DECL, this is
1554 DECL_FRIEND_CONTEXT. For a virtual FUNCTION_DECL for which
1555 DECL_THIS_THUNK_P does not hold, this is DECL_THUNKS. Both
1556 this pointer and result pointer adjusting thunks are
1557 chained here. This pointer thunks to return pointer thunks
1558 will be chained on the return pointer thunk. */
1561 /* In a FUNCTION_DECL, this is DECL_CLONED_FUNCTION. */
1562 tree cloned_function;
1566 struct sorted_fields_type * GTY ((tag ("0"), reorder ("resort_sorted_fields")))
1568 struct cp_token_cache * GTY ((tag ("2"))) pending_inline_info;
1569 struct language_function * GTY ((tag ("1")))
1570 saved_language_function;
1571 } GTY ((desc ("%1.u3sel + %1.pending_inline_p"))) u;
1572 } GTY ((tag ("1"))) f;
1573 } GTY ((desc ("%1.decl_flags.can_be_full"))) u;
1576 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1578 #define LANG_DECL_U2_CHECK(NODE, TF) __extension__ \
1579 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
1580 if (lt->decl_flags.u2sel != TF) \
1581 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1582 <->decl_flags.u2; })
1586 #define LANG_DECL_U2_CHECK(NODE, TF) \
1587 (&DECL_LANG_SPECIFIC (NODE)->decl_flags.u2)
1589 #endif /* ENABLE_TREE_CHECKING */
1591 /* For a FUNCTION_DECL or a VAR_DECL, the language linkage for the
1592 declaration. Some entities (like a member function in a local
1593 class, or a local variable) do not have linkage at all, and this
1594 macro should not be used in those cases.
1596 Implementation note: A FUNCTION_DECL without DECL_LANG_SPECIFIC was
1597 created by language-independent code, and has C linkage. Most
1598 VAR_DECLs have C++ linkage, and do not have DECL_LANG_SPECIFIC, but
1599 we do create DECL_LANG_SPECIFIC for variables with non-C++ linkage. */
1600 #define DECL_LANGUAGE(NODE) \
1601 (DECL_LANG_SPECIFIC (NODE) \
1602 ? DECL_LANG_SPECIFIC (NODE)->decl_flags.language \
1603 : (TREE_CODE (NODE) == FUNCTION_DECL \
1604 ? lang_c : lang_cplusplus))
1606 /* Set the language linkage for NODE to LANGUAGE. */
1607 #define SET_DECL_LANGUAGE(NODE, LANGUAGE) \
1608 (DECL_LANG_SPECIFIC (NODE)->decl_flags.language = (LANGUAGE))
1610 /* For FUNCTION_DECLs: nonzero means that this function is a constructor. */
1611 #define DECL_CONSTRUCTOR_P(NODE) \
1612 (DECL_LANG_SPECIFIC (NODE)->decl_flags.constructor_attr)
1614 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a complete
1616 #define DECL_COMPLETE_CONSTRUCTOR_P(NODE) \
1617 (DECL_CONSTRUCTOR_P (NODE) \
1618 && DECL_NAME (NODE) == complete_ctor_identifier)
1620 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a base
1622 #define DECL_BASE_CONSTRUCTOR_P(NODE) \
1623 (DECL_CONSTRUCTOR_P (NODE) \
1624 && DECL_NAME (NODE) == base_ctor_identifier)
1626 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor, but not either the
1627 specialized in-charge constructor or the specialized not-in-charge
1629 #define DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P(NODE) \
1630 (DECL_CONSTRUCTOR_P (NODE) && !DECL_CLONED_FUNCTION_P (NODE))
1632 /* Nonzero if NODE (a FUNCTION_DECL) is a copy constructor. */
1633 #define DECL_COPY_CONSTRUCTOR_P(NODE) \
1634 (DECL_CONSTRUCTOR_P (NODE) && copy_fn_p (NODE) > 0)
1636 /* Nonzero if NODE is a destructor. */
1637 #define DECL_DESTRUCTOR_P(NODE) \
1638 (DECL_LANG_SPECIFIC (NODE)->decl_flags.destructor_attr)
1640 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor, but not the
1641 specialized in-charge constructor, in-charge deleting constructor,
1642 or the the base destructor. */
1643 #define DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P(NODE) \
1644 (DECL_DESTRUCTOR_P (NODE) && !DECL_CLONED_FUNCTION_P (NODE))
1646 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
1648 #define DECL_COMPLETE_DESTRUCTOR_P(NODE) \
1649 (DECL_DESTRUCTOR_P (NODE) \
1650 && DECL_NAME (NODE) == complete_dtor_identifier)
1652 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a base
1654 #define DECL_BASE_DESTRUCTOR_P(NODE) \
1655 (DECL_DESTRUCTOR_P (NODE) \
1656 && DECL_NAME (NODE) == base_dtor_identifier)
1658 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
1659 object that deletes the object after it has been destroyed. */
1660 #define DECL_DELETING_DESTRUCTOR_P(NODE) \
1661 (DECL_DESTRUCTOR_P (NODE) \
1662 && DECL_NAME (NODE) == deleting_dtor_identifier)
1664 /* Nonzero if NODE (a FUNCTION_DECL) is a cloned constructor or
1666 #define DECL_CLONED_FUNCTION_P(NODE) \
1667 ((TREE_CODE (NODE) == FUNCTION_DECL \
1668 || TREE_CODE (NODE) == TEMPLATE_DECL) \
1669 && DECL_LANG_SPECIFIC (NODE) \
1670 && DECL_CLONED_FUNCTION (NODE) != NULL_TREE)
1672 /* If DECL_CLONED_FUNCTION_P holds, this is the function that was
1674 #define DECL_CLONED_FUNCTION(NODE) \
1675 (DECL_LANG_SPECIFIC (NODE)->u.f.cloned_function)
1677 /* Perform an action for each clone of FN, if FN is a function with
1678 clones. This macro should be used like:
1680 FOR_EACH_CLONE (clone, fn)
1684 #define FOR_EACH_CLONE(CLONE, FN) \
1685 if (TREE_CODE (FN) == FUNCTION_DECL \
1686 && (DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (FN) \
1687 || DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (FN))) \
1688 for (CLONE = TREE_CHAIN (FN); \
1689 CLONE && DECL_CLONED_FUNCTION_P (CLONE); \
1690 CLONE = TREE_CHAIN (CLONE))
1692 /* Nonzero if NODE has DECL_DISCRIMINATOR and not DECL_ACCESS. */
1693 #define DECL_DISCRIMINATOR_P(NODE) \
1694 (TREE_CODE (NODE) == VAR_DECL \
1695 && DECL_FUNCTION_SCOPE_P (NODE))
1697 /* Discriminator for name mangling. */
1698 #define DECL_DISCRIMINATOR(NODE) (LANG_DECL_U2_CHECK (NODE, 1)->discriminator)
1700 /* Nonzero if the VTT parm has been added to NODE. */
1701 #define DECL_HAS_VTT_PARM_P(NODE) \
1702 (DECL_LANG_SPECIFIC (NODE)->decl_flags.has_vtt_parm_p)
1704 /* Nonzero if NODE is a FUNCTION_DECL for which a VTT parameter is
1706 #define DECL_NEEDS_VTT_PARM_P(NODE) \
1707 (CLASSTYPE_VBASECLASSES (DECL_CONTEXT (NODE)) \
1708 && (DECL_BASE_CONSTRUCTOR_P (NODE) \
1709 || DECL_BASE_DESTRUCTOR_P (NODE)))
1711 /* Nonzero if NODE is a user-defined conversion operator. */
1712 #define DECL_CONV_FN_P(NODE) \
1713 (DECL_NAME (NODE) && IDENTIFIER_TYPENAME_P (DECL_NAME (NODE)))
1715 /* If FN is a conversion operator, the type to which it converts.
1716 Otherwise, NULL_TREE. */
1717 #define DECL_CONV_FN_TYPE(FN) \
1718 (DECL_CONV_FN_P (FN) ? TREE_TYPE (DECL_NAME (FN)) : NULL_TREE)
1720 /* Nonzero if NODE, which is a TEMPLATE_DECL, is a template
1721 conversion operator to a type dependent on the innermost template
1723 #define DECL_TEMPLATE_CONV_FN_P(NODE) \
1724 (DECL_LANG_SPECIFIC (NODE)->decl_flags.template_conv_p)
1726 /* Set the overloaded operator code for NODE to CODE. */
1727 #define SET_OVERLOADED_OPERATOR_CODE(NODE, CODE) \
1728 (DECL_LANG_SPECIFIC (NODE)->u.f.operator_code = (CODE))
1730 /* If NODE is an overloaded operator, then this returns the TREE_CODE
1731 associated with the overloaded operator.
1732 DECL_ASSIGNMENT_OPERATOR_P must also be checked to determine
1733 whether or not NODE is an assignment operator. If NODE is not an
1734 overloaded operator, ERROR_MARK is returned. Since the numerical
1735 value of ERROR_MARK is zero, this macro can be used as a predicate
1736 to test whether or not NODE is an overloaded operator. */
1737 #define DECL_OVERLOADED_OPERATOR_P(NODE) \
1738 (IDENTIFIER_OPNAME_P (DECL_NAME (NODE)) \
1739 ? DECL_LANG_SPECIFIC (NODE)->u.f.operator_code : ERROR_MARK)
1741 /* Nonzero if NODE is an assignment operator. */
1742 #define DECL_ASSIGNMENT_OPERATOR_P(NODE) \
1743 (DECL_LANG_SPECIFIC (NODE)->decl_flags.assignment_operator_p)
1745 /* For FUNCTION_DECLs: nonzero means that this function is a
1746 constructor or a destructor with an extra in-charge parameter to
1747 control whether or not virtual bases are constructed. */
1748 #define DECL_HAS_IN_CHARGE_PARM_P(NODE) \
1749 (DECL_LANG_SPECIFIC (NODE)->decl_flags.has_in_charge_parm_p)
1751 /* Nonzero if NODE is an overloaded `operator delete[]' function. */
1752 #define DECL_ARRAY_DELETE_OPERATOR_P(NODE) \
1753 (DECL_OVERLOADED_OPERATOR_P (NODE) == VEC_DELETE_EXPR)
1755 /* Nonzero for _DECL means that this decl appears in (or will appear
1756 in) as a member in a RECORD_TYPE or UNION_TYPE node. It is also for
1757 detecting circularity in case members are multiply defined. In the
1758 case of a VAR_DECL, it is also used to determine how program storage
1759 should be allocated. */
1760 #define DECL_IN_AGGR_P(NODE) (DECL_LANG_FLAG_3 (NODE))
1762 /* Nonzero for a VAR_DECL means that the variable's initialization has
1764 #define DECL_INITIALIZED_P(NODE) \
1765 (TREE_LANG_FLAG_1 (VAR_DECL_CHECK (NODE)))
1767 /* Nonzero for a VAR_DECL that was initialized with a
1768 constant-expression. */
1769 #define DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P(NODE) \
1770 (TREE_LANG_FLAG_2 (VAR_DECL_CHECK (NODE)))
1772 /* Nonzero for a VAR_DECL that can be used in an integral constant
1777 An integral constant-expression can only involve ... const
1778 variables of static or enumeration types initialized with
1779 constant expressions ...
1781 The standard does not require that the expression be non-volatile.
1782 G++ implements the proposed correction in DR 457. */
1783 #define DECL_INTEGRAL_CONSTANT_VAR_P(NODE) \
1784 (TREE_CODE (NODE) == VAR_DECL \
1785 && CP_TYPE_CONST_NON_VOLATILE_P (TREE_TYPE (NODE)) \
1786 && INTEGRAL_OR_ENUMERATION_TYPE_P (TREE_TYPE (NODE)) \
1787 && DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (NODE))
1789 /* Nonzero if the DECL was initialized in the class definition itself,
1790 rather than outside the class. This is used for both static member
1791 VAR_DECLS, and FUNTION_DECLS that are defined in the class. */
1792 #define DECL_INITIALIZED_IN_CLASS_P(DECL) \
1793 (DECL_LANG_SPECIFIC (DECL)->decl_flags.initialized_in_class)
1795 /* Nonzero for FUNCTION_DECL means that this decl is just a
1796 friend declaration, and should not be added to the list of
1797 member functions for this class. */
1798 #define DECL_FRIEND_P(NODE) (DECL_LANG_SPECIFIC (NODE)->decl_flags.friend_attr)
1800 /* A TREE_LIST of the types which have befriended this FUNCTION_DECL. */
1801 #define DECL_BEFRIENDING_CLASSES(NODE) \
1802 (DECL_LANG_SPECIFIC (NODE)->u.f.befriending_classes)
1804 /* Nonzero for FUNCTION_DECL means that this decl is a static
1806 #define DECL_STATIC_FUNCTION_P(NODE) \
1807 (DECL_LANG_SPECIFIC (NODE)->decl_flags.static_function)
1809 /* Nonzero for FUNCTION_DECL means that this decl is a non-static
1811 #define DECL_NONSTATIC_MEMBER_FUNCTION_P(NODE) \
1812 (TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE)
1814 /* Nonzero for FUNCTION_DECL means that this decl is a member function
1815 (static or non-static). */
1816 #define DECL_FUNCTION_MEMBER_P(NODE) \
1817 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) || DECL_STATIC_FUNCTION_P (NODE))
1819 /* Nonzero for FUNCTION_DECL means that this member function
1820 has `this' as const X *const. */
1821 #define DECL_CONST_MEMFUNC_P(NODE) \
1822 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
1823 && CP_TYPE_CONST_P (TREE_TYPE (TREE_VALUE \
1824 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
1826 /* Nonzero for FUNCTION_DECL means that this member function
1827 has `this' as volatile X *const. */
1828 #define DECL_VOLATILE_MEMFUNC_P(NODE) \
1829 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
1830 && CP_TYPE_VOLATILE_P (TREE_TYPE (TREE_VALUE \
1831 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
1833 /* Nonzero for a DECL means that this member is a non-static member. */
1834 #define DECL_NONSTATIC_MEMBER_P(NODE) \
1835 ((TREE_CODE (NODE) == FUNCTION_DECL \
1836 && DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE)) \
1837 || TREE_CODE (NODE) == FIELD_DECL)
1839 /* Nonzero for _DECL means that this member object type
1841 #define DECL_MUTABLE_P(NODE) (DECL_LANG_FLAG_0 (NODE))
1843 /* Nonzero for _DECL means that this constructor is a non-converting
1845 #define DECL_NONCONVERTING_P(NODE) \
1846 (DECL_LANG_SPECIFIC (NODE)->decl_flags.nonconverting)
1848 /* Nonzero for FUNCTION_DECL means that this member function is a pure
1849 virtual function. */
1850 #define DECL_PURE_VIRTUAL_P(NODE) \
1851 (DECL_LANG_SPECIFIC (NODE)->decl_flags.pure_virtual)
1853 /* True (in a FUNCTION_DECL) if NODE is a virtual function that is an
1854 invalid overrider for a function from a base class. Once we have
1855 complained about an invalid overrider we avoid complaining about it
1857 #define DECL_INVALID_OVERRIDER_P(NODE) \
1858 (DECL_LANG_FLAG_4 (NODE))
1860 /* The thunks associated with NODE, a FUNCTION_DECL. */
1861 #define DECL_THUNKS(NODE) \
1862 (DECL_LANG_SPECIFIC (NODE)->u.f.context)
1864 /* Nonzero if NODE is a thunk, rather than an ordinary function. */
1865 #define DECL_THUNK_P(NODE) \
1866 (TREE_CODE (NODE) == FUNCTION_DECL \
1867 && DECL_LANG_FLAG_7 (NODE))
1869 /* Nonzero if NODE is a this pointer adjusting thunk. */
1870 #define DECL_THIS_THUNK_P(NODE) \
1871 (DECL_THUNK_P (NODE) && DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p)
1873 /* Nonzero if NODE is a result pointer adjusting thunk. */
1874 #define DECL_RESULT_THUNK_P(NODE) \
1875 (DECL_THUNK_P (NODE) && !DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p)
1877 /* Nonzero if NODE is a FUNCTION_DECL, but not a thunk. */
1878 #define DECL_NON_THUNK_FUNCTION_P(NODE) \
1879 (TREE_CODE (NODE) == FUNCTION_DECL && !DECL_THUNK_P (NODE))
1881 /* Nonzero if NODE is `extern "C"'. */
1882 #define DECL_EXTERN_C_P(NODE) \
1883 (DECL_LANGUAGE (NODE) == lang_c)
1885 /* Nonzero if NODE is an `extern "C"' function. */
1886 #define DECL_EXTERN_C_FUNCTION_P(NODE) \
1887 (DECL_NON_THUNK_FUNCTION_P (NODE) && DECL_EXTERN_C_P (NODE))
1889 /* Set DECL_THUNK_P for node. */
1890 #define SET_DECL_THUNK_P(NODE, THIS_ADJUSTING) \
1891 (DECL_LANG_FLAG_7 (NODE) = 1, \
1892 DECL_LANG_SPECIFIC (NODE)->u.f.u3sel = 1, \
1893 DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p = (THIS_ADJUSTING))
1895 /* True iff DECL is an entity with vague linkage whose definition is
1896 available in this translation unit. */
1897 #define DECL_REPO_AVAILABLE_P(NODE) \
1898 (DECL_LANG_SPECIFIC (NODE)->decl_flags.repo_available_p)
1900 /* Nonzero if this DECL is the __PRETTY_FUNCTION__ variable in a
1901 template function. */
1902 #define DECL_PRETTY_FUNCTION_P(NODE) \
1903 (TREE_LANG_FLAG_0 (VAR_DECL_CHECK (NODE)))
1905 /* The _TYPE context in which this _DECL appears. This field holds the
1906 class where a virtual function instance is actually defined. */
1907 #define DECL_CLASS_CONTEXT(NODE) \
1908 (DECL_CLASS_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : NULL_TREE)
1910 /* For a non-member friend function, the class (if any) in which this
1911 friend was defined. For example, given:
1913 struct S { friend void f (); };
1915 the DECL_FRIEND_CONTEXT for `f' will be `S'. */
1916 #define DECL_FRIEND_CONTEXT(NODE) \
1917 ((DECL_FRIEND_P (NODE) && !DECL_FUNCTION_MEMBER_P (NODE)) \
1918 ? DECL_LANG_SPECIFIC (NODE)->u.f.context \
1921 /* Set the DECL_FRIEND_CONTEXT for NODE to CONTEXT. */
1922 #define SET_DECL_FRIEND_CONTEXT(NODE, CONTEXT) \
1923 (DECL_LANG_SPECIFIC (NODE)->u.f.context = (CONTEXT))
1925 /* NULL_TREE in DECL_CONTEXT represents the global namespace. */
1926 #define CP_DECL_CONTEXT(NODE) \
1927 (DECL_CONTEXT (NODE) ? DECL_CONTEXT (NODE) : global_namespace)
1928 #define FROB_CONTEXT(NODE) ((NODE) == global_namespace ? NULL_TREE : (NODE))
1930 /* 1 iff NODE has namespace scope, including the global namespace. */
1931 #define DECL_NAMESPACE_SCOPE_P(NODE) \
1932 (!DECL_TEMPLATE_PARM_P (NODE) \
1933 && TREE_CODE (CP_DECL_CONTEXT (NODE)) == NAMESPACE_DECL)
1935 /* 1 iff NODE is a class member. */
1936 #define DECL_CLASS_SCOPE_P(NODE) \
1937 (DECL_CONTEXT (NODE) && TYPE_P (DECL_CONTEXT (NODE)))
1939 /* 1 iff NODE is function-local. */
1940 #define DECL_FUNCTION_SCOPE_P(NODE) \
1941 (DECL_CONTEXT (NODE) \
1942 && TREE_CODE (DECL_CONTEXT (NODE)) == FUNCTION_DECL)
1944 /* 1 iff VAR_DECL node NODE is a type-info decl. This flag is set for
1945 both the primary typeinfo object and the associated NTBS name. */
1946 #define DECL_TINFO_P(NODE) TREE_LANG_FLAG_4 (VAR_DECL_CHECK (NODE))
1948 /* 1 iff VAR_DECL node NODE is virtual table or VTT. */
1949 #define DECL_VTABLE_OR_VTT_P(NODE) TREE_LANG_FLAG_5 (VAR_DECL_CHECK (NODE))
1951 /* Returns 1 iff VAR_DECL is a construction virtual table.
1952 DECL_VTABLE_OR_VTT_P will be true in this case and must be checked
1953 before using this macro. */
1954 #define DECL_CONSTRUCTION_VTABLE_P(NODE) \
1955 TREE_LANG_FLAG_6 (VAR_DECL_CHECK (NODE))
1957 /* 1 iff NODE is function-local, but for types. */
1958 #define LOCAL_CLASS_P(NODE) \
1959 (decl_function_context (TYPE_MAIN_DECL (NODE)) != NULL_TREE)
1961 /* For a NAMESPACE_DECL: the list of using namespace directives
1962 The PURPOSE is the used namespace, the value is the namespace
1963 that is the common ancestor. */
1964 #define DECL_NAMESPACE_USING(NODE) DECL_VINDEX (NAMESPACE_DECL_CHECK (NODE))
1966 /* In a NAMESPACE_DECL, the DECL_INITIAL is used to record all users
1967 of a namespace, to record the transitive closure of using namespace. */
1968 #define DECL_NAMESPACE_USERS(NODE) DECL_INITIAL (NAMESPACE_DECL_CHECK (NODE))
1970 /* In a NAMESPACE_DECL, the list of namespaces which have associated
1971 themselves with this one. */
1972 #define DECL_NAMESPACE_ASSOCIATIONS(NODE) \
1973 (NAMESPACE_DECL_CHECK (NODE)->decl.saved_tree)
1975 /* In a NAMESPACE_DECL, points to the original namespace if this is
1976 a namespace alias. */
1977 #define DECL_NAMESPACE_ALIAS(NODE) \
1978 DECL_ABSTRACT_ORIGIN (NAMESPACE_DECL_CHECK (NODE))
1979 #define ORIGINAL_NAMESPACE(NODE) \
1980 (DECL_NAMESPACE_ALIAS (NODE) ? DECL_NAMESPACE_ALIAS (NODE) : (NODE))
1982 /* Nonzero if NODE is the std namespace. */
1983 #define DECL_NAMESPACE_STD_P(NODE) \
1984 (TREE_CODE (NODE) == NAMESPACE_DECL \
1985 && CP_DECL_CONTEXT (NODE) == global_namespace \
1986 && DECL_NAME (NODE) == std_identifier)
1988 /* In a non-local VAR_DECL with static storage duration, this is the
1989 initialization priority. If this value is zero, the NODE will be
1990 initialized at the DEFAULT_INIT_PRIORITY. */
1991 #define DECL_INIT_PRIORITY(NODE) (VAR_DECL_CHECK (NODE)->decl.u2.i)
1993 /* In a TREE_LIST concatenating using directives, indicate indirect
1995 #define TREE_INDIRECT_USING(NODE) (TREE_LIST_CHECK (NODE)->common.lang_flag_0)
1997 /* In a VAR_DECL for a variable declared in a for statement,
1998 this is the shadowed (local) variable. */
1999 #define DECL_SHADOWED_FOR_VAR(NODE) DECL_RESULT_FLD(VAR_DECL_CHECK (NODE))
2001 /* In a FUNCTION_DECL, this is nonzero if this function was defined in
2002 the class definition. We have saved away the text of the function,
2003 but have not yet processed it. */
2004 #define DECL_PENDING_INLINE_P(NODE) \
2005 (DECL_LANG_SPECIFIC (NODE)->u.f.pending_inline_p)
2007 /* If DECL_PENDING_INLINE_P holds, this is the saved text of the
2009 #define DECL_PENDING_INLINE_INFO(NODE) \
2010 (DECL_LANG_SPECIFIC (NODE)->u.f.u.pending_inline_info)
2012 /* For a TYPE_DECL: if this structure has many fields, we'll sort them
2013 and put them into a TREE_VEC. */
2014 #define DECL_SORTED_FIELDS(NODE) \
2015 (DECL_LANG_SPECIFIC (TYPE_DECL_CHECK (NODE))->u.f.u.sorted_fields)
2017 /* True if on the deferred_fns (see decl2.c) list. */
2018 #define DECL_DEFERRED_FN(DECL) \
2019 (DECL_LANG_SPECIFIC (DECL)->decl_flags.deferred)
2021 /* For a VAR_DECL, FUNCTION_DECL, TYPE_DECL or TEMPLATE_DECL:
2022 template-specific information. */
2023 #define DECL_TEMPLATE_INFO(NODE) \
2024 (DECL_LANG_SPECIFIC (VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK (NODE)) \
2025 ->decl_flags.u.template_info)
2027 /* For a VAR_DECL, indicates that the variable has been processed.
2028 This flag is set and unset throughout the code; it is always
2029 used for a temporary purpose. */
2030 #define DECL_VAR_MARKED_P(NODE) \
2031 (DECL_LANG_FLAG_4 (VAR_DECL_CHECK (NODE)))
2033 /* Template information for a RECORD_TYPE or UNION_TYPE. */
2034 #define CLASSTYPE_TEMPLATE_INFO(NODE) \
2035 (LANG_TYPE_CLASS_CHECK (RECORD_OR_UNION_CHECK (NODE))->template_info)
2037 /* Template information for an ENUMERAL_TYPE. Although an enumeration may
2038 not be a primary template, it may be declared within the scope of a
2039 primary template and the enumeration constants may depend on
2040 non-type template parameters. */
2041 #define ENUM_TEMPLATE_INFO(NODE) \
2042 (TYPE_LANG_SLOT_1 (ENUMERAL_TYPE_CHECK (NODE)))
2044 /* Template information for a template template parameter. */
2045 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO(NODE) \
2046 (LANG_TYPE_CLASS_CHECK (BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK (NODE)) \
2049 /* Template information for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2050 #define TYPE_TEMPLATE_INFO(NODE) \
2051 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2052 ? ENUM_TEMPLATE_INFO (NODE) : \
2053 (TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM \
2054 ? TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO (NODE) : \
2055 (TYPE_LANG_SPECIFIC (NODE) \
2056 ? CLASSTYPE_TEMPLATE_INFO (NODE) \
2059 /* Set the template information for an ENUMERAL_, RECORD_, or
2060 UNION_TYPE to VAL. */
2061 #define SET_TYPE_TEMPLATE_INFO(NODE, VAL) \
2062 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2063 ? (ENUM_TEMPLATE_INFO (NODE) = (VAL)) \
2064 : (CLASSTYPE_TEMPLATE_INFO (NODE) = (VAL)))
2066 #define TI_TEMPLATE(NODE) (TREE_PURPOSE (NODE))
2067 #define TI_ARGS(NODE) (TREE_VALUE (NODE))
2068 #define TI_PENDING_TEMPLATE_FLAG(NODE) TREE_LANG_FLAG_1 (NODE)
2070 /* We use TREE_VECs to hold template arguments. If there is only one
2071 level of template arguments, then the TREE_VEC contains the
2072 arguments directly. If there is more than one level of template
2073 arguments, then each entry in the TREE_VEC is itself a TREE_VEC,
2074 containing the template arguments for a single level. The first
2075 entry in the outer TREE_VEC is the outermost level of template
2076 parameters; the last is the innermost.
2078 It is incorrect to ever form a template argument vector containing
2079 only one level of arguments, but which is a TREE_VEC containing as
2080 its only entry the TREE_VEC for that level. */
2082 /* Nonzero if the template arguments is actually a vector of vectors,
2083 rather than just a vector. */
2084 #define TMPL_ARGS_HAVE_MULTIPLE_LEVELS(NODE) \
2085 (NODE && TREE_VEC_ELT (NODE, 0) \
2086 && TREE_CODE (TREE_VEC_ELT (NODE, 0)) == TREE_VEC)
2088 /* The depth of a template argument vector. When called directly by
2089 the parser, we use a TREE_LIST rather than a TREE_VEC to represent
2090 template arguments. In fact, we may even see NULL_TREE if there
2091 are no template arguments. In both of those cases, there is only
2092 one level of template arguments. */
2093 #define TMPL_ARGS_DEPTH(NODE) \
2094 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (NODE) ? TREE_VEC_LENGTH (NODE) : 1)
2096 /* The LEVELth level of the template ARGS. The outermost level of
2097 args is level 1, not level 0. */
2098 #define TMPL_ARGS_LEVEL(ARGS, LEVEL) \
2099 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (ARGS) \
2100 ? TREE_VEC_ELT (ARGS, (LEVEL) - 1) : (ARGS))
2102 /* Set the LEVELth level of the template ARGS to VAL. This macro does
2103 not work with single-level argument vectors. */
2104 #define SET_TMPL_ARGS_LEVEL(ARGS, LEVEL, VAL) \
2105 (TREE_VEC_ELT (ARGS, (LEVEL) - 1) = (VAL))
2107 /* Accesses the IDXth parameter in the LEVELth level of the ARGS. */
2108 #define TMPL_ARG(ARGS, LEVEL, IDX) \
2109 (TREE_VEC_ELT (TMPL_ARGS_LEVEL (ARGS, LEVEL), IDX))
2111 /* Set the IDXth element in the LEVELth level of ARGS to VAL. This
2112 macro does not work with single-level argument vectors. */
2113 #define SET_TMPL_ARG(ARGS, LEVEL, IDX, VAL) \
2114 (TREE_VEC_ELT (TREE_VEC_ELT ((ARGS), (LEVEL) - 1), (IDX)) = (VAL))
2116 /* Given a single level of template arguments in NODE, return the
2117 number of arguments. */
2118 #define NUM_TMPL_ARGS(NODE) \
2119 (TREE_VEC_LENGTH (NODE))
2121 /* Returns the innermost level of template arguments in ARGS. */
2122 #define INNERMOST_TEMPLATE_ARGS(NODE) \
2123 (get_innermost_template_args ((NODE), 1))
2125 /* The number of levels of template parameters given by NODE. */
2126 #define TMPL_PARMS_DEPTH(NODE) \
2127 ((HOST_WIDE_INT) TREE_INT_CST_LOW (TREE_PURPOSE (NODE)))
2129 /* The TEMPLATE_DECL instantiated or specialized by NODE. This
2130 TEMPLATE_DECL will be the immediate parent, not the most general
2131 template. For example, in:
2133 template <class T> struct S { template <class U> void f(U); }
2135 the FUNCTION_DECL for S<int>::f<double> will have, as its
2136 DECL_TI_TEMPLATE, `template <class U> S<int>::f<U>'.
2138 As a special case, for a member friend template of a template
2139 class, this value will not be a TEMPLATE_DECL, but rather an
2140 IDENTIFIER_NODE or OVERLOAD indicating the name of the template and
2141 any explicit template arguments provided. For example, in:
2143 template <class T> struct S { friend void f<int>(int, double); }
2145 the DECL_TI_TEMPLATE will be an IDENTIFIER_NODE for `f' and the
2146 DECL_TI_ARGS will be {int}. */
2147 #define DECL_TI_TEMPLATE(NODE) TI_TEMPLATE (DECL_TEMPLATE_INFO (NODE))
2149 /* The template arguments used to obtain this decl from the most
2150 general form of DECL_TI_TEMPLATE. For the example given for
2151 DECL_TI_TEMPLATE, the DECL_TI_ARGS will be {int, double}. These
2152 are always the full set of arguments required to instantiate this
2153 declaration from the most general template specialized here. */
2154 #define DECL_TI_ARGS(NODE) TI_ARGS (DECL_TEMPLATE_INFO (NODE))
2155 #define CLASSTYPE_TI_TEMPLATE(NODE) TI_TEMPLATE (CLASSTYPE_TEMPLATE_INFO (NODE))
2156 #define CLASSTYPE_TI_ARGS(NODE) TI_ARGS (CLASSTYPE_TEMPLATE_INFO (NODE))
2157 #define ENUM_TI_TEMPLATE(NODE) \
2158 TI_TEMPLATE (ENUM_TEMPLATE_INFO (NODE))
2159 #define ENUM_TI_ARGS(NODE) \
2160 TI_ARGS (ENUM_TEMPLATE_INFO (NODE))
2162 /* For a template instantiation TYPE, returns the TYPE corresponding
2163 to the primary template. Otherwise returns TYPE itself. */
2164 #define CLASSTYPE_PRIMARY_TEMPLATE_TYPE(TYPE) \
2165 ((CLASSTYPE_USE_TEMPLATE ((TYPE)) && !CLASSTYPE_TEMPLATE_SPECIALIZATION ((TYPE))) \
2166 ? TREE_TYPE (DECL_TEMPLATE_RESULT (DECL_PRIMARY_TEMPLATE \
2167 (CLASSTYPE_TI_TEMPLATE ((TYPE))))) \
2170 /* Like DECL_TI_TEMPLATE, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2171 #define TYPE_TI_TEMPLATE(NODE) \
2172 (TI_TEMPLATE (TYPE_TEMPLATE_INFO (NODE)))
2174 /* Like DECL_TI_ARGS, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2175 #define TYPE_TI_ARGS(NODE) \
2176 (TI_ARGS (TYPE_TEMPLATE_INFO (NODE)))
2178 #define INNERMOST_TEMPLATE_PARMS(NODE) TREE_VALUE (NODE)
2180 /* Nonzero if NODE (a TEMPLATE_DECL) is a member template, in the
2181 sense of [temp.mem]. */
2182 #define DECL_MEMBER_TEMPLATE_P(NODE) \
2183 (DECL_LANG_FLAG_1 (TEMPLATE_DECL_CHECK (NODE)))
2185 /* Nonzero if the NODE corresponds to the template parameters for a
2186 member template, whose inline definition is being processed after
2187 the class definition is complete. */
2188 #define TEMPLATE_PARMS_FOR_INLINE(NODE) TREE_LANG_FLAG_1 (NODE)
2190 /* In a FUNCTION_DECL, the saved language-specific per-function data. */
2191 #define DECL_SAVED_FUNCTION_DATA(NODE) \
2192 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (NODE)) \
2193 ->u.f.u.saved_language_function)
2195 #define NEW_EXPR_USE_GLOBAL(NODE) \
2196 TREE_LANG_FLAG_0 (NEW_EXPR_CHECK (NODE))
2197 #define DELETE_EXPR_USE_GLOBAL(NODE) \
2198 TREE_LANG_FLAG_0 (DELETE_EXPR_CHECK (NODE))
2199 #define DELETE_EXPR_USE_VEC(NODE) \
2200 TREE_LANG_FLAG_1 (DELETE_EXPR_CHECK (NODE))
2202 /* Indicates that this is a non-dependent COMPOUND_EXPR which will
2203 resolve to a function call. */
2204 #define COMPOUND_EXPR_OVERLOADED(NODE) \
2205 TREE_LANG_FLAG_0 (COMPOUND_EXPR_CHECK (NODE))
2207 /* In a CALL_EXPR appearing in a template, true if Koenig lookup
2208 should be performed at instantiation time. */
2209 #define KOENIG_LOOKUP_P(NODE) TREE_LANG_FLAG_0 (CALL_EXPR_CHECK (NODE))
2211 /* Nonzero if this AGGR_INIT_EXPR provides for initialization via a
2212 constructor call, rather than an ordinary function call. */
2213 #define AGGR_INIT_VIA_CTOR_P(NODE) \
2214 TREE_LANG_FLAG_0 (AGGR_INIT_EXPR_CHECK (NODE))
2216 /* The TYPE_MAIN_DECL for a class template type is a TYPE_DECL, not a
2217 TEMPLATE_DECL. This macro determines whether or not a given class
2218 type is really a template type, as opposed to an instantiation or
2219 specialization of one. */
2220 #define CLASSTYPE_IS_TEMPLATE(NODE) \
2221 (CLASSTYPE_TEMPLATE_INFO (NODE) \
2222 && !CLASSTYPE_USE_TEMPLATE (NODE) \
2223 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE)))
2225 /* The name used by the user to name the typename type. Typically,
2226 this is an IDENTIFIER_NODE, and the same as the DECL_NAME on the
2227 corresponding TYPE_DECL. However, this may also be a
2228 TEMPLATE_ID_EXPR if we had something like `typename X::Y<T>'. */
2229 #define TYPENAME_TYPE_FULLNAME(NODE) (TYPENAME_TYPE_CHECK (NODE))->type.values
2231 /* Nonzero in INTEGER_CST means that this int is negative by dint of
2232 using a twos-complement negated operand. */
2233 #define TREE_NEGATED_INT(NODE) TREE_LANG_FLAG_0 (INTEGER_CST_CHECK (NODE))
2237 A class that declares or inherits a virtual function is called a
2238 polymorphic class. */
2239 #define TYPE_POLYMORPHIC_P(NODE) (TREE_LANG_FLAG_2 (NODE))
2241 /* Nonzero if this class has a virtual function table pointer. */
2242 #define TYPE_CONTAINS_VPTR_P(NODE) \
2243 (TYPE_POLYMORPHIC_P (NODE) || CLASSTYPE_VBASECLASSES (NODE))
2245 /* This flag is true of a local VAR_DECL if it was declared in a for
2246 statement, but we are no longer in the scope of the for. */
2247 #define DECL_DEAD_FOR_LOCAL(NODE) DECL_LANG_FLAG_7 (VAR_DECL_CHECK (NODE))
2249 /* This flag is set on a VAR_DECL that is a DECL_DEAD_FOR_LOCAL
2250 if we already emitted a warning about using it. */
2251 #define DECL_ERROR_REPORTED(NODE) DECL_LANG_FLAG_0 (VAR_DECL_CHECK (NODE))
2253 /* Nonzero if NODE is a FUNCTION_DECL (for a function with global
2254 scope) declared in a local scope. */
2255 #define DECL_LOCAL_FUNCTION_P(NODE) \
2256 DECL_LANG_FLAG_0 (FUNCTION_DECL_CHECK (NODE))
2258 /* Nonzero if NODE is a FUNCTION_DECL for a built-in function, and we have
2259 not yet seen a prototype for that function. */
2260 #define DECL_ANTICIPATED(NODE) \
2261 (DECL_LANG_SPECIFIC (DECL_CHECK (NODE))->decl_flags.anticipated_p)
2263 /* Record whether a typedef for type `int' was actually `signed int'. */
2264 #define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP)
2266 /* Returns nonzero if DECL has external linkage, as specified by the
2267 language standard. (This predicate may hold even when the
2268 corresponding entity is not actually given external linkage in the
2269 object file; see decl_linkage for details.) */
2270 #define DECL_EXTERNAL_LINKAGE_P(DECL) \
2271 (decl_linkage (DECL) == lk_external)
2273 #define INTEGRAL_CODE_P(CODE) \
2274 ((CODE) == INTEGER_TYPE || (CODE) == ENUMERAL_TYPE || (CODE) == BOOLEAN_TYPE)
2276 /* [basic.fundamental]
2278 Types bool, char, wchar_t, and the signed and unsigned integer types
2279 are collectively called integral types.
2281 Note that INTEGRAL_TYPE_P, as defined in tree.h, allows enumeration
2282 types as well, which is incorrect in C++. */
2283 #define CP_INTEGRAL_TYPE_P(TYPE) \
2284 (TREE_CODE (TYPE) == BOOLEAN_TYPE \
2285 || TREE_CODE (TYPE) == INTEGER_TYPE)
2287 /* Returns true if TYPE is an integral or enumeration name. */
2288 #define INTEGRAL_OR_ENUMERATION_TYPE_P(TYPE) \
2289 (CP_INTEGRAL_TYPE_P (TYPE) || TREE_CODE (TYPE) == ENUMERAL_TYPE)
2291 /* [basic.fundamental]
2293 Integral and floating types are collectively called arithmetic
2295 #define ARITHMETIC_TYPE_P(TYPE) \
2296 (CP_INTEGRAL_TYPE_P (TYPE) || TREE_CODE (TYPE) == REAL_TYPE)
2300 Arithmetic types, enumeration types, pointer types, and
2301 pointer-to-member types, are collectively called scalar types. */
2302 #define SCALAR_TYPE_P(TYPE) \
2303 (ARITHMETIC_TYPE_P (TYPE) \
2304 || TREE_CODE (TYPE) == ENUMERAL_TYPE \
2305 || TYPE_PTR_P (TYPE) \
2306 || TYPE_PTR_TO_MEMBER_P (TYPE))
2310 An aggregate is an array or a class with no user-declared
2311 constructors, no private or protected non-static data members, no
2312 base classes, and no virtual functions.
2314 As an extension, we also treat vectors as aggregates. */
2315 #define CP_AGGREGATE_TYPE_P(TYPE) \
2316 (TREE_CODE (TYPE) == ARRAY_TYPE \
2317 || TREE_CODE (TYPE) == VECTOR_TYPE \
2318 || (CLASS_TYPE_P (TYPE) \
2319 && !CLASSTYPE_NON_AGGREGATE (TYPE)))
2321 /* Nonzero for a class type means that the class type has a
2322 user-declared constructor. */
2323 #define TYPE_HAS_CONSTRUCTOR(NODE) (TYPE_LANG_FLAG_1 (NODE))
2325 /* When appearing in an INDIRECT_REF, it means that the tree structure
2326 underneath is actually a call to a constructor. This is needed
2327 when the constructor must initialize local storage (which can
2328 be automatically destroyed), rather than allowing it to allocate
2329 space from the heap.
2331 When appearing in a SAVE_EXPR, it means that underneath
2332 is a call to a constructor.
2334 When appearing in a CONSTRUCTOR, the expression is a
2337 When appearing in a FIELD_DECL, it means that this field
2338 has been duly initialized in its constructor. */
2339 #define TREE_HAS_CONSTRUCTOR(NODE) (TREE_LANG_FLAG_4 (NODE))
2341 /* True if NODE is a brace-enclosed initializer. */
2342 #define BRACE_ENCLOSED_INITIALIZER_P(NODE) \
2343 (TREE_CODE (NODE) == CONSTRUCTOR && !TREE_TYPE (NODE))
2345 #define EMPTY_CONSTRUCTOR_P(NODE) (TREE_CODE (NODE) == CONSTRUCTOR \
2346 && CONSTRUCTOR_ELTS (NODE) == NULL_TREE \
2347 && ! TREE_HAS_CONSTRUCTOR (NODE))
2349 /* Nonzero for _TYPE means that the _TYPE defines a destructor. */
2350 #define TYPE_HAS_DESTRUCTOR(NODE) (TYPE_LANG_FLAG_2 (NODE))
2352 /* Nonzero means that an object of this type can not be initialized using
2353 an initializer list. */
2354 #define CLASSTYPE_NON_AGGREGATE(NODE) \
2355 (LANG_TYPE_CLASS_CHECK (NODE)->non_aggregate)
2356 #define TYPE_NON_AGGREGATE_CLASS(NODE) \
2357 (IS_AGGR_TYPE (NODE) && CLASSTYPE_NON_AGGREGATE (NODE))
2359 /* Nonzero if there is a user-defined X::op=(x&) for this class. */
2360 #define TYPE_HAS_COMPLEX_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_assign_ref)
2361 #define TYPE_HAS_COMPLEX_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_init_ref)
2363 /* Nonzero if TYPE has a trivial destructor. From [class.dtor]:
2365 A destructor is trivial if it is an implicitly declared
2368 - all of the direct base classes of its class have trivial
2371 - for all of the non-static data members of its class that are
2372 of class type (or array thereof), each such class has a
2373 trivial destructor. */
2374 #define TYPE_HAS_TRIVIAL_DESTRUCTOR(NODE) \
2375 (!TYPE_HAS_NONTRIVIAL_DESTRUCTOR (NODE))
2377 /* Nonzero for _TYPE node means that this type does not have a trivial
2378 destructor. Therefore, destroying an object of this type will
2379 involve a call to a destructor. This can apply to objects of
2380 ARRAY_TYPE is the type of the elements needs a destructor. */
2381 #define TYPE_HAS_NONTRIVIAL_DESTRUCTOR(NODE) \
2382 (TYPE_LANG_FLAG_4 (NODE))
2384 /* Nonzero for class type means that copy initialization of this type can use
2386 #define TYPE_HAS_TRIVIAL_INIT_REF(NODE) \
2387 (TYPE_HAS_INIT_REF (NODE) && ! TYPE_HAS_COMPLEX_INIT_REF (NODE))
2389 /* Nonzero for class type means that assignment of this type can use
2391 #define TYPE_HAS_TRIVIAL_ASSIGN_REF(NODE) \
2392 (TYPE_HAS_ASSIGN_REF (NODE) && ! TYPE_HAS_COMPLEX_ASSIGN_REF (NODE))
2394 /* Returns true if NODE is a pointer-to-data-member. */
2395 #define TYPE_PTRMEM_P(NODE) \
2396 (TREE_CODE (NODE) == OFFSET_TYPE)
2397 #define TYPE_PTR_P(NODE) \
2398 (TREE_CODE (NODE) == POINTER_TYPE)
2399 #define TYPE_PTROB_P(NODE) \
2400 (TYPE_PTR_P (NODE) \
2401 && TREE_CODE (TREE_TYPE (NODE)) != FUNCTION_TYPE \
2402 && TREE_CODE (TREE_TYPE (NODE)) != METHOD_TYPE \
2403 && TREE_CODE (TREE_TYPE (NODE)) != VOID_TYPE)
2404 #define TYPE_PTROBV_P(NODE) \
2405 (TYPE_PTR_P (NODE) && TREE_CODE (TREE_TYPE (NODE)) != FUNCTION_TYPE)
2406 #define TYPE_PTRFN_P(NODE) \
2407 (TREE_CODE (NODE) == POINTER_TYPE \
2408 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
2409 #define TYPE_REFFN_P(NODE) \
2410 (TREE_CODE (NODE) == REFERENCE_TYPE \
2411 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
2413 /* Nonzero for _TYPE node means that this type is a pointer to member
2415 #define TYPE_PTRMEMFUNC_P(NODE) \
2416 (TREE_CODE (NODE) == RECORD_TYPE \
2417 && TYPE_LANG_SPECIFIC (NODE) \
2418 && TYPE_PTRMEMFUNC_FLAG (NODE))
2420 #define TYPE_PTRMEMFUNC_FLAG(NODE) \
2421 (LANG_TYPE_CLASS_CHECK (NODE)->ptrmemfunc_flag)
2423 /* Returns true if NODE is a pointer-to-member. */
2424 #define TYPE_PTR_TO_MEMBER_P(NODE) \
2425 (TYPE_PTRMEM_P (NODE) || TYPE_PTRMEMFUNC_P (NODE))
2427 /* Indicates when overload resolution may resolve to a pointer to
2428 member function. [expr.unary.op]/3 */
2429 #define PTRMEM_OK_P(NODE) \
2430 TREE_LANG_FLAG_0 (TREE_CHECK2 ((NODE), ADDR_EXPR, OFFSET_REF))
2432 /* Get the POINTER_TYPE to the METHOD_TYPE associated with this
2433 pointer to member function. TYPE_PTRMEMFUNC_P _must_ be true,
2434 before using this macro. */
2435 #define TYPE_PTRMEMFUNC_FN_TYPE(NODE) \
2436 (TREE_TYPE (TYPE_FIELDS (NODE)))
2438 /* Returns `A' for a type like `int (A::*)(double)' */
2439 #define TYPE_PTRMEMFUNC_OBJECT_TYPE(NODE) \
2440 TYPE_METHOD_BASETYPE (TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
2442 /* These are use to manipulate the canonical RECORD_TYPE from the
2443 hashed POINTER_TYPE, and can only be used on the POINTER_TYPE. */
2444 #define TYPE_GET_PTRMEMFUNC_TYPE(NODE) \
2445 (TYPE_LANG_SPECIFIC (NODE) ? LANG_TYPE_PTRMEM_CHECK (NODE)->record : NULL)
2446 #define TYPE_SET_PTRMEMFUNC_TYPE(NODE, VALUE) \
2448 if (TYPE_LANG_SPECIFIC (NODE) == NULL) \
2450 TYPE_LANG_SPECIFIC (NODE) = GGC_CNEWVAR \
2451 (struct lang_type, sizeof (struct lang_type_ptrmem)); \
2452 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.h.is_lang_type_class = 0; \
2454 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.record = (VALUE); \
2456 /* Returns the pfn field from a TYPE_PTRMEMFUNC_P. */
2457 #define PFN_FROM_PTRMEMFUNC(NODE) pfn_from_ptrmemfunc ((NODE))
2459 /* For a pointer-to-member type of the form `T X::*', this is `X'.
2460 For a type like `void (X::*)() const', this type is `X', not `const
2461 X'. To get at the `const X' you have to look at the
2462 TYPE_PTRMEM_POINTED_TO_TYPE; there, the first parameter will have
2464 #define TYPE_PTRMEM_CLASS_TYPE(NODE) \
2465 (TYPE_PTRMEM_P (NODE) \
2466 ? TYPE_OFFSET_BASETYPE (NODE) \
2467 : TYPE_PTRMEMFUNC_OBJECT_TYPE (NODE))
2469 /* For a pointer-to-member type of the form `T X::*', this is `T'. */
2470 #define TYPE_PTRMEM_POINTED_TO_TYPE(NODE) \
2471 (TYPE_PTRMEM_P (NODE) \
2472 ? TREE_TYPE (NODE) \
2473 : TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
2475 /* For a pointer-to-member constant `X::Y' this is the RECORD_TYPE for
2477 #define PTRMEM_CST_CLASS(NODE) \
2478 TYPE_PTRMEM_CLASS_TYPE (TREE_TYPE (PTRMEM_CST_CHECK (NODE)))
2480 /* For a pointer-to-member constant `X::Y' this is the _DECL for
2482 #define PTRMEM_CST_MEMBER(NODE) (((ptrmem_cst_t)PTRMEM_CST_CHECK (NODE))->member)
2484 /* The expression in question for a TYPEOF_TYPE. */
2485 #define TYPEOF_TYPE_EXPR(NODE) (TYPEOF_TYPE_CHECK (NODE))->type.values
2487 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `extern' was
2488 specified in its declaration. This can also be set for an
2489 erroneously declared PARM_DECL. */
2490 #define DECL_THIS_EXTERN(NODE) \
2491 DECL_LANG_FLAG_2 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
2493 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `static' was
2494 specified in its declaration. This can also be set for an
2495 erroneously declared PARM_DECL. */
2496 #define DECL_THIS_STATIC(NODE) \
2497 DECL_LANG_FLAG_6 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
2499 /* Nonzero for FIELD_DECL node means that this field is a base class
2500 of the parent object, as opposed to a member field. */
2501 #define DECL_FIELD_IS_BASE(NODE) \
2502 DECL_LANG_FLAG_6 (FIELD_DECL_CHECK (NODE))
2504 /* Nonzero if TYPE is an anonymous union or struct type. We have to use a
2505 flag for this because "A union for which objects or pointers are
2506 declared is not an anonymous union" [class.union]. */
2507 #define ANON_AGGR_TYPE_P(NODE) \
2508 (CLASS_TYPE_P (NODE) && LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr)
2509 #define SET_ANON_AGGR_TYPE_P(NODE) \
2510 (LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr = 1)
2512 /* Nonzero if TYPE is an anonymous union type. */
2513 #define ANON_UNION_TYPE_P(NODE) \
2514 (TREE_CODE (NODE) == UNION_TYPE && ANON_AGGR_TYPE_P (NODE))
2516 #define UNKNOWN_TYPE LANG_TYPE
2518 /* Define fields and accessors for nodes representing declared names. */
2520 #define TYPE_WAS_ANONYMOUS(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->was_anonymous)
2522 /* C++: all of these are overloaded! These apply only to TYPE_DECLs. */
2524 /* The format of each node in the DECL_FRIENDLIST is as follows:
2526 The TREE_PURPOSE will be the name of a function, i.e., an
2527 IDENTIFIER_NODE. The TREE_VALUE will be itself a TREE_LIST, whose
2528 TREE_VALUEs are friends with the given name. */
2529 #define DECL_FRIENDLIST(NODE) (DECL_INITIAL (NODE))
2530 #define FRIEND_NAME(LIST) (TREE_PURPOSE (LIST))
2531 #define FRIEND_DECLS(LIST) (TREE_VALUE (LIST))
2533 /* The DECL_ACCESS, if non-NULL, is a TREE_LIST. The TREE_PURPOSE of
2534 each node is a type; the TREE_VALUE is the access granted for this
2535 DECL in that type. The DECL_ACCESS is set by access declarations.
2536 For example, if a member that would normally be public in a
2537 derived class is made protected, then the derived class and the
2538 protected_access_node will appear in the DECL_ACCESS for the node. */
2539 #define DECL_ACCESS(NODE) (LANG_DECL_U2_CHECK (NODE, 0)->access)
2541 /* Nonzero if the FUNCTION_DECL is a global constructor. */
2542 #define DECL_GLOBAL_CTOR_P(NODE) \
2543 (DECL_LANG_SPECIFIC (NODE)->decl_flags.global_ctor_p)
2545 /* Nonzero if the FUNCTION_DECL is a global destructor. */
2546 #define DECL_GLOBAL_DTOR_P(NODE) \
2547 (DECL_LANG_SPECIFIC (NODE)->decl_flags.global_dtor_p)
2549 /* Accessor macros for C++ template decl nodes. */
2551 /* The DECL_TEMPLATE_PARMS are a list. The TREE_PURPOSE of each node
2552 is a INT_CST whose TREE_INT_CST_LOW indicates the level of the
2553 template parameters, with 1 being the outermost set of template
2554 parameters. The TREE_VALUE is a vector, whose elements are the
2555 template parameters at each level. Each element in the vector is a
2556 TREE_LIST, whose TREE_VALUE is a PARM_DECL (if the parameter is a
2557 non-type parameter), or a TYPE_DECL (if the parameter is a type
2558 parameter). The TREE_PURPOSE is the default value, if any. The
2559 TEMPLATE_PARM_INDEX for the parameter is available as the
2560 DECL_INITIAL (for a PARM_DECL) or as the TREE_TYPE (for a
2562 #define DECL_TEMPLATE_PARMS(NODE) DECL_ARGUMENTS (NODE)
2563 #define DECL_INNERMOST_TEMPLATE_PARMS(NODE) \
2564 INNERMOST_TEMPLATE_PARMS (DECL_TEMPLATE_PARMS (NODE))
2565 #define DECL_NTPARMS(NODE) \
2566 TREE_VEC_LENGTH (DECL_INNERMOST_TEMPLATE_PARMS (NODE))
2567 /* For function, method, class-data templates. */
2568 #define DECL_TEMPLATE_RESULT(NODE) DECL_RESULT_FLD (NODE)
2569 /* For a static member variable template, the
2570 DECL_TEMPLATE_INSTANTIATIONS list contains the explicitly and
2571 implicitly generated instantiations of the variable. There are no
2572 partial instantiations of static member variables, so all of these
2573 will be full instantiations.
2575 For a class template the DECL_TEMPLATE_INSTANTIATIONS lists holds
2576 all instantiations and specializations of the class type, including
2577 partial instantiations and partial specializations.
2579 In both cases, the TREE_PURPOSE of each node contains the arguments
2580 used; the TREE_VALUE contains the generated variable. The template
2581 arguments are always complete. For example, given:
2583 template <class T> struct S1 {
2584 template <class U> struct S2 {};
2585 template <class U> struct S2<U*> {};
2588 the record for the partial specialization will contain, as its
2589 argument list, { {T}, {U*} }, and will be on the
2590 DECL_TEMPLATE_INSTANTIATIONS list for `template <class T> template
2591 <class U> struct S1<T>::S2'.
2593 This list is not used for function templates. */
2594 #define DECL_TEMPLATE_INSTANTIATIONS(NODE) DECL_VINDEX (NODE)
2595 /* For a function template, the DECL_TEMPLATE_SPECIALIZATIONS lists
2596 contains all instantiations and specializations of the function,
2597 including partial instantiations. For a partial instantiation
2598 which is a specialization, this list holds only full
2599 specializations of the template that are instantiations of the
2600 partial instantiation. For example, given:
2602 template <class T> struct S {
2603 template <class U> void f(U);
2604 template <> void f(T);
2607 the `S<int>::f<int>(int)' function will appear on the
2608 DECL_TEMPLATE_SPECIALIZATIONS list for both `template <class T>
2609 template <class U> void S<T>::f(U)' and `template <class T> void
2610 S<int>::f(T)'. In the latter case, however, it will have only the
2611 innermost set of arguments (T, in this case). The DECL_TI_TEMPLATE
2612 for the function declaration will point at the specialization, not
2613 the fully general template.
2615 For a class template, this list contains the partial
2616 specializations of this template. (Full specializations are not
2617 recorded on this list.) The TREE_PURPOSE holds the innermost
2618 arguments used in the partial specialization (e.g., for `template
2619 <class T> struct S<T*, int>' this will be `T*'.) The TREE_VALUE
2620 holds the innermost template parameters for the specialization
2621 (e.g., `T' in the example above.) The TREE_TYPE is the _TYPE node
2622 for the partial specialization.
2624 This list is not used for static variable templates. */
2625 #define DECL_TEMPLATE_SPECIALIZATIONS(NODE) DECL_SIZE (NODE)
2627 /* Nonzero for a DECL which is actually a template parameter. */
2628 #define DECL_TEMPLATE_PARM_P(NODE) \
2629 (DECL_LANG_FLAG_0 (NODE) \
2630 && (TREE_CODE (NODE) == CONST_DECL \
2631 || TREE_CODE (NODE) == PARM_DECL \
2632 || TREE_CODE (NODE) == TYPE_DECL \
2633 || TREE_CODE (NODE) == TEMPLATE_DECL))
2635 /* Mark NODE as a template parameter. */
2636 #define SET_DECL_TEMPLATE_PARM_P(NODE) \
2637 (DECL_LANG_FLAG_0 (NODE) = 1)
2639 /* Nonzero if NODE is a template template parameter. */
2640 #define DECL_TEMPLATE_TEMPLATE_PARM_P(NODE) \
2641 (TREE_CODE (NODE) == TEMPLATE_DECL && DECL_TEMPLATE_PARM_P (NODE))
2643 /* Nonzero if NODE is a TEMPLATE_DECL representing an
2644 UNBOUND_CLASS_TEMPLATE tree node. */
2645 #define DECL_UNBOUND_CLASS_TEMPLATE_P(NODE) \
2646 (TREE_CODE (NODE) == TEMPLATE_DECL && !DECL_TEMPLATE_RESULT (NODE))
2648 #define DECL_FUNCTION_TEMPLATE_P(NODE) \
2649 (TREE_CODE (NODE) == TEMPLATE_DECL \
2650 && !DECL_UNBOUND_CLASS_TEMPLATE_P (NODE) \
2651 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == FUNCTION_DECL)
2653 /* Nonzero for a DECL that represents a template class. */
2654 #define DECL_CLASS_TEMPLATE_P(NODE) \
2655 (TREE_CODE (NODE) == TEMPLATE_DECL \
2656 && !DECL_UNBOUND_CLASS_TEMPLATE_P (NODE) \
2657 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == TYPE_DECL \
2658 && !DECL_TEMPLATE_TEMPLATE_PARM_P (NODE))
2660 /* Nonzero if NODE which declares a type. */
2661 #define DECL_DECLARES_TYPE_P(NODE) \
2662 (TREE_CODE (NODE) == TYPE_DECL || DECL_CLASS_TEMPLATE_P (NODE))
2664 /* Nonzero if NODE is the typedef implicitly generated for a type when
2665 the type is declared. In C++, `struct S {};' is roughly
2666 equivalent to `struct S {}; typedef struct S S;' in C.
2667 DECL_IMPLICIT_TYPEDEF_P will hold for the typedef indicated in this
2668 example. In C++, there is a second implicit typedef for each
2669 class, in the scope of `S' itself, so that you can say `S::S'.
2670 DECL_SELF_REFERENCE_P will hold for that second typedef. */
2671 #define DECL_IMPLICIT_TYPEDEF_P(NODE) \
2672 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_2 (NODE))
2673 #define SET_DECL_IMPLICIT_TYPEDEF_P(NODE) \
2674 (DECL_LANG_FLAG_2 (NODE) = 1)
2675 #define DECL_SELF_REFERENCE_P(NODE) \
2676 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_4 (NODE))
2677 #define SET_DECL_SELF_REFERENCE_P(NODE) \
2678 (DECL_LANG_FLAG_4 (NODE) = 1)
2680 /* A `primary' template is one that has its own template header. A
2681 member function of a class template is a template, but not primary.
2682 A member template is primary. Friend templates are primary, too. */
2684 /* Returns the primary template corresponding to these parameters. */
2685 #define DECL_PRIMARY_TEMPLATE(NODE) \
2686 (TREE_TYPE (DECL_INNERMOST_TEMPLATE_PARMS (NODE)))
2688 /* Returns nonzero if NODE is a primary template. */
2689 #define PRIMARY_TEMPLATE_P(NODE) (DECL_PRIMARY_TEMPLATE (NODE) == (NODE))
2691 #define CLASSTYPE_TEMPLATE_LEVEL(NODE) \
2692 (TREE_INT_CST_LOW (TREE_PURPOSE (CLASSTYPE_TI_TEMPLATE (NODE))))
2694 /* Indicates whether or not (and how) a template was expanded for this
2695 FUNCTION_DECL or VAR_DECL.
2696 0=normal declaration, e.g. int min (int, int);
2697 1=implicit template instantiation
2698 2=explicit template specialization, e.g. int min<int> (int, int);
2699 3=explicit template instantiation, e.g. template int min<int> (int, int); */
2700 #define DECL_USE_TEMPLATE(NODE) (DECL_LANG_SPECIFIC (NODE)->decl_flags.use_template)
2702 #define DECL_TEMPLATE_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) & 1)
2703 #define CLASSTYPE_TEMPLATE_INSTANTIATION(NODE) \
2704 (CLASSTYPE_USE_TEMPLATE (NODE) & 1)
2706 #define DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) == 2)
2707 #define SET_DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) = 2)
2708 #define CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
2709 (CLASSTYPE_USE_TEMPLATE (NODE) == 2)
2710 #define SET_CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
2711 (CLASSTYPE_USE_TEMPLATE (NODE) = 2)
2713 #define DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 1)
2714 #define SET_DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 1)
2715 #define CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
2716 (CLASSTYPE_USE_TEMPLATE (NODE) == 1)
2717 #define SET_CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
2718 (CLASSTYPE_USE_TEMPLATE (NODE) = 1)
2720 #define DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 3)
2721 #define SET_DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 3)
2722 #define CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
2723 (CLASSTYPE_USE_TEMPLATE (NODE) == 3)
2724 #define SET_CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
2725 (CLASSTYPE_USE_TEMPLATE (NODE) = 3)
2727 /* Nonzero if DECL is a friend function which is an instantiation
2728 from the point of view of the compiler, but not from the point of
2729 view of the language. For example given:
2730 template <class T> struct S { friend void f(T) {}; };
2731 the declaration of `void f(int)' generated when S<int> is
2732 instantiated will not be a DECL_TEMPLATE_INSTANTIATION, but will be
2733 a DECL_FRIEND_PSUEDO_TEMPLATE_INSTANTIATION. */
2734 #define DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION(DECL) \
2735 (DECL_TEMPLATE_INFO (DECL) && !DECL_USE_TEMPLATE (DECL))
2737 /* Nonzero iff we are currently processing a declaration for an
2738 entity with its own template parameter list, and which is not a
2739 full specialization. */
2740 #define PROCESSING_REAL_TEMPLATE_DECL_P() \
2741 (processing_template_decl > template_class_depth (current_scope ()))
2743 /* Nonzero if this VAR_DECL or FUNCTION_DECL has already been
2744 instantiated, i.e. its definition has been generated from the
2745 pattern given in the the template. */
2746 #define DECL_TEMPLATE_INSTANTIATED(NODE) \
2747 DECL_LANG_FLAG_1 (VAR_OR_FUNCTION_DECL_CHECK (NODE))
2749 /* We know what we're doing with this decl now. */
2750 #define DECL_INTERFACE_KNOWN(NODE) DECL_LANG_FLAG_5 (NODE)
2752 /* DECL_EXTERNAL must be set on a decl until the decl is actually emitted,
2753 so that assemble_external will work properly. So we have this flag to
2754 tell us whether the decl is really not external. */
2755 #define DECL_NOT_REALLY_EXTERN(NODE) \
2756 (DECL_LANG_SPECIFIC (NODE)->decl_flags.not_really_extern)
2758 #define DECL_REALLY_EXTERN(NODE) \
2759 (DECL_EXTERNAL (NODE) && ! DECL_NOT_REALLY_EXTERN (NODE))
2761 /* A thunk is a stub function.
2763 A thunk is an alternate entry point for an ordinary FUNCTION_DECL.
2764 The address of the ordinary FUNCTION_DECL is given by the
2765 DECL_INITIAL, which is always an ADDR_EXPR whose operand is a
2766 FUNCTION_DECL. The job of the thunk is to either adjust the this
2767 pointer before transferring control to the FUNCTION_DECL, or call
2768 FUNCTION_DECL and then adjust the result value. Note, the result
2769 pointer adjusting thunk must perform a call to the thunked
2770 function, (or be implemented via passing some invisible parameter
2771 to the thunked function, which is modified to perform the
2772 adjustment just before returning).
2774 A thunk may perform either, or both, of the following operations:
2776 o Adjust the this or result pointer by a constant offset.
2777 o Adjust the this or result pointer by looking up a vcall or vbase offset
2780 A this pointer adjusting thunk converts from a base to a derived
2781 class, and hence adds the offsets. A result pointer adjusting thunk
2782 converts from a derived class to a base, and hence subtracts the
2783 offsets. If both operations are performed, then the constant
2784 adjustment is performed first for this pointer adjustment and last
2785 for the result pointer adjustment.
2787 The constant adjustment is given by THUNK_FIXED_OFFSET. If the
2788 vcall or vbase offset is required, THUNK_VIRTUAL_OFFSET is
2789 used. For this pointer adjusting thunks, it is the vcall offset
2790 into the vtable. For result pointer adjusting thunks it is the
2791 binfo of the virtual base to convert to. Use that binfo's vbase
2794 It is possible to have equivalent covariant thunks. These are
2795 distinct virtual covariant thunks whose vbase offsets happen to
2796 have the same value. THUNK_ALIAS is used to pick one as the
2797 canonical thunk, which will get all the this pointer adjusting
2798 thunks attached to it. */
2800 /* An integer indicating how many bytes should be subtracted from the
2801 this or result pointer when this function is called. */
2802 #define THUNK_FIXED_OFFSET(DECL) \
2803 (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL))->u.f.fixed_offset)
2805 /* A tree indicating how to perform the virtual adjustment. For a this
2806 adjusting thunk it is the number of bytes to be added to the vtable
2807 to find the vcall offset. For a result adjusting thunk, it is the
2808 binfo of the relevant virtual base. If NULL, then there is no
2809 virtual adjust. (The vptr is always located at offset zero from
2810 the this or result pointer.) (If the covariant type is within the
2811 class hierarchy being laid out, the vbase index is not yet known
2812 at the point we need to create the thunks, hence the need to use
2815 #define THUNK_VIRTUAL_OFFSET(DECL) \
2816 (LANG_DECL_U2_CHECK (FUNCTION_DECL_CHECK (DECL), 0)->access)
2818 /* A thunk which is equivalent to another thunk. */
2819 #define THUNK_ALIAS(DECL) \
2820 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->decl_flags.u.template_info)
2822 /* For thunk NODE, this is the FUNCTION_DECL thunked to. */
2823 #define THUNK_TARGET(NODE) \
2824 (DECL_LANG_SPECIFIC (NODE)->u.f.befriending_classes)
2826 /* These macros provide convenient access to the various _STMT nodes
2827 created when parsing template declarations. */
2828 #define TRY_STMTS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 0)
2829 #define TRY_HANDLERS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 1)
2831 #define EH_SPEC_STMTS(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 0)
2832 #define EH_SPEC_RAISES(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 1)
2834 #define USING_STMT_NAMESPACE(NODE) TREE_OPERAND (USING_STMT_CHECK (NODE), 0)
2836 /* Nonzero if this try block is a function try block. */
2837 #define FN_TRY_BLOCK_P(NODE) TREE_LANG_FLAG_3 (TRY_BLOCK_CHECK (NODE))
2838 #define HANDLER_PARMS(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 0)
2839 #define HANDLER_BODY(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 1)
2840 #define HANDLER_TYPE(NODE) TREE_TYPE (HANDLER_CHECK (NODE))
2842 /* CLEANUP_STMT accessors. The statement(s) covered, the cleanup to run
2843 and the VAR_DECL for which this cleanup exists. */
2844 #define CLEANUP_BODY(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 0)
2845 #define CLEANUP_EXPR(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 1)
2846 #define CLEANUP_DECL(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 2)
2848 /* IF_STMT accessors. These give access to the condition of the if
2849 statement, the then block of the if statement, and the else block
2850 of the if statement if it exists. */
2851 #define IF_COND(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 0)
2852 #define THEN_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 1)
2853 #define ELSE_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 2)
2855 /* An enumeration of the kind of tags that C++ accepts. */
2857 none_type = 0, /* Not a tag type. */
2858 record_type, /* "struct" types. */
2859 class_type, /* "class" types. */
2860 union_type, /* "union" types. */
2861 enum_type, /* "enum" types. */
2862 typename_type /* "typename" types. */
2865 /* The various kinds of lvalues we distinguish. */
2866 typedef enum cp_lvalue_kind {
2867 clk_none = 0, /* Things that are not an lvalue. */
2868 clk_ordinary = 1, /* An ordinary lvalue. */
2869 clk_class = 2, /* An rvalue of class-type. */
2870 clk_bitfield = 4, /* An lvalue for a bit-field. */
2871 clk_packed = 8 /* An lvalue for a packed field. */
2874 /* Various kinds of template specialization, instantiation, etc. */
2875 typedef enum tmpl_spec_kind {
2876 tsk_none, /* Not a template at all. */
2877 tsk_invalid_member_spec, /* An explicit member template
2878 specialization, but the enclosing
2879 classes have not all been explicitly
2881 tsk_invalid_expl_inst, /* An explicit instantiation containing
2882 template parameter lists. */
2883 tsk_excessive_parms, /* A template declaration with too many
2884 template parameter lists. */
2885 tsk_insufficient_parms, /* A template declaration with too few
2887 tsk_template, /* A template declaration. */
2888 tsk_expl_spec, /* An explicit specialization. */
2889 tsk_expl_inst /* An explicit instantiation. */
2892 /* The various kinds of access. BINFO_ACCESS depends on these being
2893 two bit quantities. The numerical values are important; they are
2894 used to initialize RTTI data structures, so changing them changes
2896 typedef enum access_kind {
2897 ak_none = 0, /* Inaccessible. */
2898 ak_public = 1, /* Accessible, as a `public' thing. */
2899 ak_protected = 2, /* Accessible, as a `protected' thing. */
2900 ak_private = 3 /* Accessible, as a `private' thing. */
2903 /* The various kinds of special functions. If you add to this list,
2904 you should update special_function_p as well. */
2905 typedef enum special_function_kind {
2906 sfk_none = 0, /* Not a special function. This enumeral
2907 must have value zero; see
2908 special_function_p. */
2909 sfk_constructor, /* A constructor. */
2910 sfk_copy_constructor, /* A copy constructor. */
2911 sfk_assignment_operator, /* An assignment operator. */
2912 sfk_destructor, /* A destructor. */
2913 sfk_complete_destructor, /* A destructor for complete objects. */
2914 sfk_base_destructor, /* A destructor for base subobjects. */
2915 sfk_deleting_destructor, /* A destructor for complete objects that
2916 deletes the object after it has been
2918 sfk_conversion /* A conversion operator. */
2919 } special_function_kind;
2921 /* The various kinds of linkage. From [basic.link],
2923 A name is said to have linkage when it might denote the same
2924 object, reference, function, type, template, namespace or value
2925 as a name introduced in another scope:
2927 -- When a name has external linkage, the entity it denotes can
2928 be referred to from scopes of other translation units or from
2929 other scopes of the same translation unit.
2931 -- When a name has internal linkage, the entity it denotes can
2932 be referred to by names from other scopes in the same
2935 -- When a name has no linkage, the entity it denotes cannot be
2936 referred to by names from other scopes. */
2938 typedef enum linkage_kind {
2939 lk_none, /* No linkage. */
2940 lk_internal, /* Internal linkage. */
2941 lk_external /* External linkage. */
2944 /* Bitmask flags to control type substitution. */
2945 typedef enum tsubst_flags_t {
2946 tf_none = 0, /* nothing special */
2947 tf_error = 1 << 0, /* give error messages */
2948 tf_warning = 1 << 1, /* give warnings too */
2949 tf_ignore_bad_quals = 1 << 2, /* ignore bad cvr qualifiers */
2950 tf_keep_type_decl = 1 << 3, /* retain typedef type decls
2951 (make_typename_type use) */
2952 tf_ptrmem_ok = 1 << 4, /* pointers to member ok (internal
2953 instantiate_type use) */
2954 tf_user = 1 << 5, /* found template must be a user template
2955 (lookup_template_class use) */
2956 tf_conv = 1 << 6 /* We are determining what kind of
2957 conversion might be permissible,
2958 not actually performing the
2962 /* The kind of checking we can do looking in a class hierarchy. */
2963 typedef enum base_access {
2964 ba_any = 0, /* Do not check access, allow an ambiguous base,
2965 prefer a non-virtual base */
2966 ba_ignore = 1, /* Do not check access */
2967 ba_check = 2, /* Check access */
2968 ba_not_special = 3, /* Do not consider special privilege
2969 current_class_type might give. */
2970 ba_quiet = 4 /* Do not issue error messages (bit mask). */
2973 /* The various kinds of access check during parsing. */
2974 typedef enum deferring_kind {
2975 dk_no_deferred = 0, /* Check access immediately */
2976 dk_deferred = 1, /* Deferred check */
2977 dk_no_check = 2 /* No access check */
2980 /* The kind of base we can find, looking in a class hierarchy.
2981 Values <0 indicate we failed. */
2982 typedef enum base_kind {
2983 bk_inaccessible = -3, /* The base is inaccessible */
2984 bk_ambig = -2, /* The base is ambiguous */
2985 bk_not_base = -1, /* It is not a base */
2986 bk_same_type = 0, /* It is the same type */
2987 bk_proper_base = 1, /* It is a proper base */
2988 bk_via_virtual = 2 /* It is a proper base, but via a virtual
2989 path. This might not be the canonical
2994 /* A node that is a list (length 1) of error_mark_nodes. */
2995 extern GTY(()) tree error_mark_list;
2997 /* Node for "pointer to (virtual) function".
2998 This may be distinct from ptr_type_node so gdb can distinguish them. */
2999 #define vfunc_ptr_type_node vtable_entry_type
3002 /* For building calls to `delete'. */
3003 extern GTY(()) tree integer_two_node;
3004 extern GTY(()) tree integer_three_node;
3006 /* The number of function bodies which we are currently processing.
3007 (Zero if we are at namespace scope, one inside the body of a
3008 function, two inside the body of a function in a local class, etc.) */
3009 extern int function_depth;
3013 /* These values are used for the `STRICT' parameter to type_unification and
3014 fn_type_unification. Their meanings are described with the
3015 documentation for fn_type_unification. */
3017 typedef enum unification_kind_t {
3022 } unification_kind_t;
3024 /* Macros for operating on a template instantiation level node. */
3026 #define TINST_DECL(NODE) \
3027 (((tinst_level_t) TINST_LEVEL_CHECK (NODE))->decl)
3028 #define TINST_LOCATION(NODE) \
3029 (((tinst_level_t) TINST_LEVEL_CHECK (NODE))->locus)
3033 extern int current_class_depth;
3035 /* An array of all local classes present in this translation unit, in
3036 declaration order. */
3037 extern GTY(()) varray_type local_classes;
3039 /* Here's where we control how name mangling takes place. */
3041 /* Cannot use '$' up front, because this confuses gdb
3042 (names beginning with '$' are gdb-local identifiers).
3044 Note that all forms in which the '$' is significant are long enough
3045 for direct indexing (meaning that if we know there is a '$'
3046 at a particular location, we can index into the string at
3047 any other location that provides distinguishing characters). */
3049 /* Define NO_DOLLAR_IN_LABEL in your favorite tm file if your assembler
3050 doesn't allow '$' in symbol names. */
3051 #ifndef NO_DOLLAR_IN_LABEL
3055 #define VPTR_NAME "$v"
3056 #define THROW_NAME "$eh_throw"
3057 #define AUTO_VTABLE_NAME "__vtbl$me__"
3058 #define AUTO_TEMP_NAME "_$tmp_"
3059 #define AUTO_TEMP_FORMAT "_$tmp_%d"
3060 #define VTABLE_BASE "$vb"
3061 #define VTABLE_NAME_PREFIX "__vt_"
3062 #define VFIELD_BASE "$vf"
3063 #define VFIELD_NAME "_vptr$"
3064 #define VFIELD_NAME_FORMAT "_vptr$%s"
3065 #define STATIC_NAME_FORMAT "_%s$%s"
3066 #define ANON_AGGRNAME_FORMAT "$_%d"
3068 #else /* NO_DOLLAR_IN_LABEL */
3070 #ifndef NO_DOT_IN_LABEL
3074 #define VPTR_NAME ".v"
3075 #define THROW_NAME ".eh_throw"
3076 #define AUTO_VTABLE_NAME "__vtbl.me__"
3077 #define AUTO_TEMP_NAME "_.tmp_"
3078 #define AUTO_TEMP_FORMAT "_.tmp_%d"
3079 #define VTABLE_BASE ".vb"
3080 #define VTABLE_NAME_PREFIX "__vt_"
3081 #define VFIELD_BASE ".vf"
3082 #define VFIELD_NAME "_vptr."
3083 #define VFIELD_NAME_FORMAT "_vptr.%s"
3084 #define STATIC_NAME_FORMAT "_%s.%s"
3086 #define ANON_AGGRNAME_FORMAT "._%d"
3088 #else /* NO_DOT_IN_LABEL */
3090 #define VPTR_NAME "__vptr"
3091 #define VPTR_NAME_P(ID_NODE) \
3092 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VPTR_NAME, sizeof (VPTR_NAME) - 1))
3093 #define THROW_NAME "__eh_throw"
3094 #define IN_CHARGE_NAME "__in_chrg"
3095 #define AUTO_VTABLE_NAME "__vtbl_me__"
3096 #define AUTO_TEMP_NAME "__tmp_"
3097 #define TEMP_NAME_P(ID_NODE) \
3098 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, \
3099 sizeof (AUTO_TEMP_NAME) - 1))
3100 #define AUTO_TEMP_FORMAT "__tmp_%d"
3101 #define VTABLE_BASE "__vtb"
3102 #define VTABLE_NAME "__vt_"
3103 #define VTABLE_NAME_PREFIX "__vt_"
3104 #define VTABLE_NAME_P(ID_NODE) \
3105 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VTABLE_NAME, \
3106 sizeof (VTABLE_NAME) - 1))
3107 #define VFIELD_BASE "__vfb"
3108 #define VFIELD_NAME "__vptr_"
3109 #define VFIELD_NAME_P(ID_NODE) \
3110 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, \
3111 sizeof (VFIELD_NAME) - 1))
3112 #define VFIELD_NAME_FORMAT "__vptr_%s"
3113 #define STATIC_NAME_FORMAT "__static_%s_%s"
3115 #define ANON_AGGRNAME_PREFIX "__anon_"
3116 #define ANON_AGGRNAME_P(ID_NODE) \
3117 (!strncmp (IDENTIFIER_POINTER (ID_NODE), ANON_AGGRNAME_PREFIX, \
3118 sizeof (ANON_AGGRNAME_PREFIX) - 1))
3119 #define ANON_AGGRNAME_FORMAT "__anon_%d"
3121 #endif /* NO_DOT_IN_LABEL */
3122 #endif /* NO_DOLLAR_IN_LABEL */
3124 #define THIS_NAME "this"
3125 #define CTOR_NAME "__ct"
3126 #define DTOR_NAME "__dt"
3128 #define IN_CHARGE_NAME "__in_chrg"
3130 #define VTBL_PTR_TYPE "__vtbl_ptr_type"
3131 #define VTABLE_DELTA_NAME "__delta"
3132 #define VTABLE_PFN_NAME "__pfn"
3134 #define EXCEPTION_CLEANUP_NAME "exception cleanup"
3136 #if !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL)
3138 #define VPTR_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[0] == JOINER \
3139 && IDENTIFIER_POINTER (ID_NODE)[1] == 'v')
3141 #define VTABLE_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == 'v' \
3142 && IDENTIFIER_POINTER (ID_NODE)[2] == 't' \
3143 && IDENTIFIER_POINTER (ID_NODE)[3] == JOINER)
3145 #define TEMP_NAME_P(ID_NODE) \
3146 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, sizeof (AUTO_TEMP_NAME)-1))
3147 #define VFIELD_NAME_P(ID_NODE) \
3148 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, sizeof(VFIELD_NAME)-1))
3150 /* For anonymous aggregate types, we need some sort of name to
3151 hold on to. In practice, this should not appear, but it should
3152 not be harmful if it does. */
3153 #define ANON_AGGRNAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[0] == JOINER \
3154 && IDENTIFIER_POINTER (ID_NODE)[1] == '_')
3155 #endif /* !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) */
3157 /* Returns nonzero iff NODE is a declaration for the global function
3159 #define DECL_MAIN_P(NODE) \
3160 (DECL_EXTERN_C_FUNCTION_P (NODE) \
3161 && DECL_NAME (NODE) != NULL_TREE \
3162 && MAIN_NAME_P (DECL_NAME (NODE)))
3165 /* Nonzero if we're done parsing and into end-of-file activities. */
3169 /* A list of namespace-scope objects which have constructors or
3170 destructors which reside in the global scope. The decl is stored
3171 in the TREE_VALUE slot and the initializer is stored in the
3172 TREE_PURPOSE slot. */
3173 extern GTY(()) tree static_aggregates;
3175 /* Functions called along with real static constructors and destructors. */
3177 extern GTY(()) tree static_ctors;
3178 extern GTY(()) tree static_dtors;
3180 enum overload_flags { NO_SPECIAL = 0, DTOR_FLAG, OP_FLAG, TYPENAME_FLAG };
3182 /* Some macros for char-based bitfields. */
3183 #define B_SET(A,X) ((A)[(X)>>3] |= (1 << ((X)&7)))
3184 #define B_CLR(A,X) ((A)[(X)>>3] &= ~(1 << ((X)&7)))
3185 #define B_TST(A,X) ((A)[(X)>>3] & (1 << ((X)&7)))
3187 /* These are uses as bits in flags passed to build_new_method_call
3188 to control its error reporting behavior.
3190 LOOKUP_PROTECT means flag access violations.
3191 LOOKUP_COMPLAIN mean complain if no suitable member function
3192 matching the arguments is found.
3193 LOOKUP_NORMAL is just a combination of these two.
3194 LOOKUP_NONVIRTUAL means make a direct call to the member function found
3195 LOOKUP_GLOBAL means search through the space of overloaded functions,
3196 as well as the space of member functions.
3197 LOOKUP_ONLYCONVERTING means that non-conversion constructors are not tried.
3198 DIRECT_BIND means that if a temporary is created, it should be created so
3199 that it lives as long as the current variable bindings; otherwise it
3200 only lives until the end of the complete-expression. It also forces
3201 direct-initialization in cases where other parts of the compiler have
3202 already generated a temporary, such as reference initialization and the
3204 LOOKUP_NO_CONVERSION means that user-defined conversions are not
3205 permitted. Built-in conversions are permitted.
3206 LOOKUP_DESTRUCTOR means explicit call to destructor.
3207 LOOKUP_NO_TEMP_BIND means temporaries will not be bound to references.
3209 These are used in global lookup to support elaborated types and
3212 LOOKUP_PREFER_TYPES means not to accept objects, and possibly namespaces.
3213 LOOKUP_PREFER_NAMESPACES means not to accept objects, and possibly types.
3214 LOOKUP_PREFER_BOTH means class-or-namespace-name. */
3216 #define LOOKUP_PROTECT (1 << 0)
3217 #define LOOKUP_COMPLAIN (1 << 1)
3218 #define LOOKUP_NORMAL (LOOKUP_PROTECT | LOOKUP_COMPLAIN)
3219 #define LOOKUP_NONVIRTUAL (1 << 2)
3220 #define LOOKUP_GLOBAL (1 << 3)
3221 #define LOOKUP_ONLYCONVERTING (1 << 4)
3222 #define DIRECT_BIND (1 << 5)
3223 #define LOOKUP_NO_CONVERSION (1 << 6)
3224 #define LOOKUP_DESTRUCTOR (1 << 7)
3225 #define LOOKUP_NO_TEMP_BIND (1 << 8)
3226 #define LOOKUP_PREFER_TYPES (1 << 9)
3227 #define LOOKUP_PREFER_NAMESPACES (1 << 10)
3228 #define LOOKUP_PREFER_BOTH (LOOKUP_PREFER_TYPES | LOOKUP_PREFER_NAMESPACES)
3229 #define LOOKUP_CONSTRUCTOR_CALLABLE (1 << 11)
3231 #define LOOKUP_NAMESPACES_ONLY(F) \
3232 (((F) & LOOKUP_PREFER_NAMESPACES) && !((F) & LOOKUP_PREFER_TYPES))
3233 #define LOOKUP_TYPES_ONLY(F) \
3234 (!((F) & LOOKUP_PREFER_NAMESPACES) && ((F) & LOOKUP_PREFER_TYPES))
3235 #define LOOKUP_QUALIFIERS_ONLY(F) ((F) & LOOKUP_PREFER_BOTH)
3238 /* These flags are used by the conversion code.
3239 CONV_IMPLICIT : Perform implicit conversions (standard and user-defined).
3240 CONV_STATIC : Perform the explicit conversions for static_cast.
3241 CONV_CONST : Perform the explicit conversions for const_cast.
3242 CONV_REINTERPRET: Perform the explicit conversions for reinterpret_cast.
3243 CONV_PRIVATE : Perform upcasts to private bases.
3244 CONV_FORCE_TEMP : Require a new temporary when converting to the same
3247 #define CONV_IMPLICIT 1
3248 #define CONV_STATIC 2
3249 #define CONV_CONST 4
3250 #define CONV_REINTERPRET 8
3251 #define CONV_PRIVATE 16
3252 /* #define CONV_NONCONVERTING 32 */
3253 #define CONV_FORCE_TEMP 64
3254 #define CONV_STATIC_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_FORCE_TEMP)
3255 #define CONV_OLD_CONVERT (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
3257 #define CONV_C_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
3258 | CONV_REINTERPRET | CONV_PRIVATE | CONV_FORCE_TEMP)
3260 /* Used by build_expr_type_conversion to indicate which types are
3261 acceptable as arguments to the expression under consideration. */
3263 #define WANT_INT 1 /* integer types, including bool */
3264 #define WANT_FLOAT 2 /* floating point types */
3265 #define WANT_ENUM 4 /* enumerated types */
3266 #define WANT_POINTER 8 /* pointer types */
3267 #define WANT_NULL 16 /* null pointer constant */
3268 #define WANT_ARITH (WANT_INT | WANT_FLOAT)
3270 /* Used with comptypes, and related functions, to guide type
3273 #define COMPARE_STRICT 0 /* Just check if the types are the
3275 #define COMPARE_BASE 1 /* Check to see if the second type is
3276 derived from the first. */
3277 #define COMPARE_DERIVED 2 /* Like COMPARE_BASE, but in
3279 #define COMPARE_REDECLARATION 4 /* The comparison is being done when
3280 another declaration of an existing
3283 /* Used with push_overloaded_decl. */
3284 #define PUSH_GLOBAL 0 /* Push the DECL into namespace scope,
3285 regardless of the current scope. */
3286 #define PUSH_LOCAL 1 /* Push the DECL into the current
3288 #define PUSH_USING 2 /* We are pushing this DECL as the
3289 result of a using declaration. */
3291 /* Used with start function. */
3292 #define SF_DEFAULT 0 /* No flags. */
3293 #define SF_PRE_PARSED 1 /* The function declaration has
3294 already been parsed. */
3295 #define SF_INCLASS_INLINE 2 /* The function is an inline, defined
3296 in the class body. */
3298 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, or if TYPE2
3299 is derived from TYPE1, or if TYPE2 is a pointer (reference) to a
3300 class derived from the type pointed to (referred to) by TYPE1. */
3301 #define same_or_base_type_p(TYPE1, TYPE2) \
3302 comptypes ((TYPE1), (TYPE2), COMPARE_BASE)
3304 /* These macros are used to access a TEMPLATE_PARM_INDEX. */
3305 #define TEMPLATE_PARM_INDEX_CAST(NODE) \
3306 ((template_parm_index*)TEMPLATE_PARM_INDEX_CHECK (NODE))
3307 #define TEMPLATE_PARM_IDX(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->index)
3308 #define TEMPLATE_PARM_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->level)
3309 #define TEMPLATE_PARM_DESCENDANTS(NODE) (TREE_CHAIN (NODE))
3310 #define TEMPLATE_PARM_ORIG_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->orig_level)
3311 #define TEMPLATE_PARM_DECL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->decl)
3313 /* These macros are for accessing the fields of TEMPLATE_TYPE_PARM,
3314 TEMPLATE_TEMPLATE_PARM and BOUND_TEMPLATE_TEMPLATE_PARM nodes. */
3315 #define TEMPLATE_TYPE_PARM_INDEX(NODE) \
3316 (TREE_CHECK3 ((NODE), TEMPLATE_TYPE_PARM, TEMPLATE_TEMPLATE_PARM, \
3317 BOUND_TEMPLATE_TEMPLATE_PARM))->type.values
3318 #define TEMPLATE_TYPE_IDX(NODE) \
3319 (TEMPLATE_PARM_IDX (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3320 #define TEMPLATE_TYPE_LEVEL(NODE) \
3321 (TEMPLATE_PARM_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3322 #define TEMPLATE_TYPE_ORIG_LEVEL(NODE) \
3323 (TEMPLATE_PARM_ORIG_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3324 #define TEMPLATE_TYPE_DECL(NODE) \
3325 (TEMPLATE_PARM_DECL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3327 /* These constants can used as bit flags in the process of tree formatting.
3329 TFF_PLAIN_IDENTIFIER: unqualified part of a name.
3330 TFF_SCOPE: include the class and namespace scope of the name.
3331 TFF_CHASE_TYPEDEF: print the original type-id instead of the typedef-name.
3332 TFF_DECL_SPECIFIERS: print decl-specifiers.
3333 TFF_CLASS_KEY_OR_ENUM: precede a class-type name (resp. enum name) with
3334 a class-key (resp. `enum').
3335 TFF_RETURN_TYPE: include function return type.
3336 TFF_FUNCTION_DEFAULT_ARGUMENTS: include function default parameter values.
3337 TFF_EXCEPTION_SPECIFICATION: show function exception specification.
3338 TFF_TEMPLATE_HEADER: show the template<...> header in a
3339 template-declaration.
3340 TFF_TEMPLATE_NAME: show only template-name.
3341 TFF_EXPR_IN_PARENS: parenthesize expressions.
3342 TFF_NO_FUNCTION_ARGUMENTS: don't show function arguments. */
3344 #define TFF_PLAIN_IDENTIFIER (0)
3345 #define TFF_SCOPE (1)
3346 #define TFF_CHASE_TYPEDEF (1 << 1)
3347 #define TFF_DECL_SPECIFIERS (1 << 2)
3348 #define TFF_CLASS_KEY_OR_ENUM (1 << 3)
3349 #define TFF_RETURN_TYPE (1 << 4)
3350 #define TFF_FUNCTION_DEFAULT_ARGUMENTS (1 << 5)
3351 #define TFF_EXCEPTION_SPECIFICATION (1 << 6)
3352 #define TFF_TEMPLATE_HEADER (1 << 7)
3353 #define TFF_TEMPLATE_NAME (1 << 8)
3354 #define TFF_EXPR_IN_PARENS (1 << 9)
3355 #define TFF_NO_FUNCTION_ARGUMENTS (1 << 10)
3357 /* Returns the TEMPLATE_DECL associated to a TEMPLATE_TEMPLATE_PARM
3359 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_DECL(NODE) \
3360 ((TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM) \
3361 ? TYPE_TI_TEMPLATE (NODE) \
3366 extern void init_reswords (void);
3368 /* Indexed by TREE_CODE, these tables give C-looking names to
3369 operators represented by TREE_CODES. For example,
3370 opname_tab[(int) MINUS_EXPR] == "-". */
3371 extern const char **opname_tab, **assignop_tab;
3373 typedef struct operator_name_info_t GTY(())
3375 /* The IDENTIFIER_NODE for the operator. */
3377 /* The name of the operator. */
3379 /* The mangled name of the operator. */
3380 const char *mangled_name;
3381 /* The arity of the operator. */
3383 } operator_name_info_t;
3385 /* A mapping from tree codes to operator name information. */
3386 extern GTY(()) operator_name_info_t operator_name_info
3387 [(int) LAST_CPLUS_TREE_CODE];
3388 /* Similar, but for assignment operators. */
3389 extern GTY(()) operator_name_info_t assignment_operator_name_info
3390 [(int) LAST_CPLUS_TREE_CODE];
3392 /* A type-qualifier, or bitmask therefore, using the TYPE_QUAL
3395 typedef int cp_cv_quals;
3397 /* A storage class. */
3399 typedef enum cp_storage_class {
3400 /* sc_none must be zero so that zeroing a cp_decl_specifier_seq
3401 sets the storage_class field to sc_none. */
3410 /* An individual decl-specifier. */
3412 typedef enum cp_decl_spec {
3414 ds_signed = ds_first,
3431 /* A decl-specifier-seq. */
3433 typedef struct cp_decl_specifier_seq {
3434 /* The number of times each of the keywords has been seen. */
3435 unsigned specs[(int) ds_last];
3436 /* The primary type, if any, given by the decl-specifier-seq.
3437 Modifiers, like "short", "const", and "unsigned" are not
3438 reflected here. This field will be a TYPE, unless a typedef-name
3439 was used, in which case it will be a TYPE_DECL. */
3441 /* The attributes, if any, provided with the specifier sequence. */
3443 /* If non-NULL, a built-in type that the user attempted to redefine
3444 to some other type. */
3445 tree redefined_builtin_type;
3446 /* The storage class specified -- or sc_none if no storage class was
3447 explicitly specified. */
3448 cp_storage_class storage_class;
3449 /* True iff TYPE_SPEC indicates a user-defined type. */
3450 BOOL_BITFIELD user_defined_type_p : 1;
3451 /* True iff multiple types were (erroneously) specified for this
3452 decl-specifier-seq. */
3453 BOOL_BITFIELD multiple_types_p : 1;
3454 /* True iff multiple storage classes were (erroneously) specified
3455 for this decl-specifier-seq. */
3456 BOOL_BITFIELD multiple_storage_classes_p : 1;
3457 /* True iff at least one decl-specifier was found. */
3458 BOOL_BITFIELD any_specifiers_p : 1;
3459 /* True iff "int" was explicitly provided. */
3460 BOOL_BITFIELD explicit_int_p : 1;
3461 /* True iff "char" was explicitly provided. */
3462 BOOL_BITFIELD explicit_char_p : 1;
3463 } cp_decl_specifier_seq;
3465 /* The various kinds of declarators. */
3467 typedef enum cp_declarator_kind {
3475 } cp_declarator_kind;
3479 typedef struct cp_declarator cp_declarator;
3481 typedef struct cp_parameter_declarator cp_parameter_declarator;
3483 /* A parameter, before it has been semantically analyzed. */
3484 struct cp_parameter_declarator {
3485 /* The next parameter, or NULL_TREE if none. */
3486 cp_parameter_declarator *next;
3487 /* The decl-specifiers-seq for the parameter. */
3488 cp_decl_specifier_seq decl_specifiers;
3489 /* The declarator for the parameter. */
3490 cp_declarator *declarator;
3491 /* The default-argument expression, or NULL_TREE, if none. */
3492 tree default_argument;
3493 /* True iff this is the first parameter in the list and the
3494 parameter sequence ends with an ellipsis. */
3499 struct cp_declarator {
3500 /* The kind of declarator. */
3501 cp_declarator_kind kind;
3502 /* Attributes that apply to this declarator. */
3504 /* For all but cdk_id and cdk_error, the contained declarator. For
3505 cdk_id and cdk_error, guaranteed to be NULL. */
3506 cp_declarator *declarator;
3508 /* For identifiers. */
3510 /* The name of the function -- an IDENTIFIER_NODE, BIT_NOT_EXPR,
3511 TEMPLATE_ID_EXPR, or SCOPE_REF. */
3513 /* If this is the name of a function, what kind of special
3514 function (if any). */
3515 special_function_kind sfk;
3517 /* For functions. */
3519 /* The parameters to the function. */
3520 cp_parameter_declarator *parameters;
3521 /* The cv-qualifiers for the function. */
3522 cp_cv_quals qualifiers;
3523 /* The exception-specification for the function. */
3524 tree exception_specification;
3528 /* The bounds to the array. */
3531 /* For cdk_pointer, cdk_reference, and cdk_ptrmem. */
3533 /* The cv-qualifiers for the pointer. */
3534 cp_cv_quals qualifiers;
3535 /* For cdk_ptrmem, the class type containing the member. */
3541 /* An erroneous declarator. */
3542 extern cp_declarator *cp_error_declarator;
3544 /* A parameter list indicating for a function with no parameters,
3545 e.g "int f(void)". */
3546 extern cp_parameter_declarator *no_parameters;
3549 extern bool check_dtor_name (tree, tree);
3551 extern tree build_vfield_ref (tree, tree);
3552 extern tree build_conditional_expr (tree, tree, tree);
3553 extern tree build_addr_func (tree);
3554 extern tree build_call (tree, tree);
3555 extern bool null_ptr_cst_p (tree);
3556 extern bool sufficient_parms_p (tree);
3557 extern tree type_decays_to (tree);
3558 extern tree build_user_type_conversion (tree, tree, int);
3559 extern tree build_new_function_call (tree, tree);
3560 extern tree build_operator_new_call (tree, tree, tree *, tree *);
3561 extern tree build_new_method_call (tree, tree, tree, tree, int);
3562 extern tree build_special_member_call (tree, tree, tree, tree, int);
3563 extern tree build_new_op (enum tree_code, int, tree, tree, tree, bool *);
3564 extern tree build_op_delete_call (enum tree_code, tree, tree, bool, tree);
3565 extern bool can_convert (tree, tree);
3566 extern bool can_convert_arg (tree, tree, tree);
3567 extern bool can_convert_arg_bad (tree, tree, tree);
3568 extern bool enforce_access (tree, tree);
3569 extern tree convert_default_arg (tree, tree, tree, int);
3570 extern tree convert_arg_to_ellipsis (tree);
3571 extern tree build_x_va_arg (tree, tree);
3572 extern tree cxx_type_promotes_to (tree);
3573 extern tree type_passed_as (tree);
3574 extern tree convert_for_arg_passing (tree, tree);
3575 extern tree cp_convert_parm_for_inlining (tree, tree, tree);
3576 extern bool is_properly_derived_from (tree, tree);
3577 extern tree initialize_reference (tree, tree, tree, tree *);
3578 extern tree make_temporary_var_for_ref_to_temp (tree, tree);
3579 extern tree strip_top_quals (tree);
3580 extern tree perform_implicit_conversion (tree, tree);
3581 extern tree perform_direct_initialization_if_possible (tree, tree);
3582 extern tree in_charge_arg_for_name (tree);
3583 extern tree build_cxx_call (tree, tree);
3584 #ifdef ENABLE_CHECKING
3585 extern void validate_conversion_obstack (void);
3586 #endif /* ENABLE_CHECKING */
3589 extern tree build_base_path (enum tree_code, tree, tree, int);
3590 extern tree convert_to_base (tree, tree, bool);
3591 extern tree convert_to_base_statically (tree, tree);
3592 extern tree build_vtbl_ref (tree, tree);
3593 extern tree build_vfn_ref (tree, tree);
3594 extern tree get_vtable_decl (tree, int);
3595 extern void resort_type_method_vec
3596 (void *, void *, gt_pointer_operator, void *);
3597 extern void add_method (tree, tree);
3598 extern int currently_open_class (tree);
3599 extern tree currently_open_derived_class (tree);
3600 extern tree finish_struct (tree, tree);
3601 extern void finish_struct_1 (tree);
3602 extern int resolves_to_fixed_type_p (tree, int *);
3603 extern void init_class_processing (void);
3604 extern int is_empty_class (tree);
3605 extern void pushclass (tree);
3606 extern void popclass (void);
3607 extern void push_nested_class (tree);
3608 extern void pop_nested_class (void);
3609 extern int current_lang_depth (void);
3610 extern void push_lang_context (tree);
3611 extern void pop_lang_context (void);
3612 extern tree instantiate_type (tree, tree, tsubst_flags_t);
3613 extern void print_class_statistics (void);
3614 extern void cxx_print_statistics (void);
3615 extern void cxx_print_xnode (FILE *, tree, int);
3616 extern void cxx_print_decl (FILE *, tree, int);
3617 extern void cxx_print_type (FILE *, tree, int);
3618 extern void cxx_print_identifier (FILE *, tree, int);
3619 extern void cxx_print_error_function (struct diagnostic_context *,
3621 extern void build_self_reference (void);
3622 extern int same_signature_p (tree, tree);
3623 extern void warn_hidden (tree);
3624 extern void maybe_add_class_template_decl_list (tree, tree, int);
3625 extern tree get_enclosing_class (tree);
3626 extern void unreverse_member_declarations (tree);
3627 extern void invalidate_class_lookup_cache (void);
3628 extern void maybe_note_name_used_in_class (tree, tree);
3629 extern void note_name_declared_in_class (tree, tree);
3630 extern tree get_vtbl_decl_for_binfo (tree);
3631 extern tree get_vtt_name (tree);
3632 extern tree get_primary_binfo (tree);
3633 extern void debug_class (tree);
3634 extern void debug_thunks (tree);
3635 extern tree cp_fold_obj_type_ref (tree, tree);
3636 extern void set_linkage_according_to_type (tree, tree);
3637 extern void determine_key_method (tree);
3640 extern tree convert_to_reference (tree, tree, int, int, tree);
3641 extern tree convert_from_reference (tree);
3642 extern tree convert_lvalue (tree, tree);
3643 extern tree force_rvalue (tree);
3644 extern tree ocp_convert (tree, tree, int, int);
3645 extern tree cp_convert (tree, tree);
3646 extern tree convert_to_void (tree, const char */*implicit context*/);
3647 extern tree convert_force (tree, tree, int);
3648 extern tree build_type_conversion (tree, tree);
3649 extern tree build_expr_type_conversion (int, tree, bool);
3650 extern tree type_promotes_to (tree);
3651 extern tree perform_qualification_conversions (tree, tree);
3652 extern void clone_function_decl (tree, int);
3653 extern void adjust_clone_args (tree);
3656 extern tree poplevel (int, int, int);
3657 extern void insert_block (tree);
3658 extern tree pushdecl (tree);
3659 extern void cxx_init_decl_processing (void);
3660 enum cp_tree_node_structure_enum cp_tree_node_structure
3661 (union lang_tree_node *);
3662 extern bool cxx_mark_addressable (tree);
3663 extern void cxx_push_function_context (struct function *);
3664 extern void cxx_pop_function_context (struct function *);
3665 extern void cxx_mark_function_context (struct function *);
3666 extern void maybe_push_cleanup_level (tree);
3667 extern void finish_scope (void);
3668 extern void delete_block (tree);
3669 extern void add_block_current_level (tree);
3670 extern void push_switch (tree);
3671 extern void pop_switch (void);
3672 extern void pushtag (tree, tree, int);
3673 extern tree make_anon_name (void);
3674 extern void clear_anon_tags (void);
3675 extern int decls_match (tree, tree);
3676 extern tree duplicate_decls (tree, tree);
3677 extern tree pushdecl_top_level (tree);
3678 extern tree pushdecl_top_level_and_finish (tree, tree);
3679 extern tree push_using_decl (tree, tree);
3680 extern tree declare_local_label (tree);
3681 extern tree define_label (location_t, tree);
3682 extern void check_goto (tree);
3683 extern void define_case_label (void);
3684 extern tree make_typename_type (tree, tree, tsubst_flags_t);
3685 extern tree make_unbound_class_template (tree, tree, tsubst_flags_t);
3686 extern tree check_for_out_of_scope_variable (tree);
3687 extern tree build_library_fn (tree, tree);
3688 extern tree build_library_fn_ptr (const char *, tree);
3689 extern tree build_cp_library_fn_ptr (const char *, tree);
3690 extern tree push_library_fn (tree, tree);
3691 extern tree push_void_library_fn (tree, tree);
3692 extern tree push_throw_library_fn (tree, tree);
3693 extern int init_type_desc (void);
3694 extern tree check_tag_decl (cp_decl_specifier_seq *);
3695 extern tree shadow_tag (cp_decl_specifier_seq *);
3696 extern tree groktypename (cp_decl_specifier_seq *, const cp_declarator *);
3697 extern tree start_decl (const cp_declarator *, cp_decl_specifier_seq *, int, tree, tree, bool *);
3698 extern void start_decl_1 (tree);
3699 extern void cp_finish_decl (tree, tree, tree, int);
3700 extern void finish_decl (tree, tree, tree);
3701 extern int complete_array_type (tree, tree, int);
3702 extern tree build_ptrmemfunc_type (tree);
3703 extern tree build_ptrmem_type (tree, tree);
3704 /* the grokdeclarator prototype is in decl.h */
3705 extern int copy_fn_p (tree);
3706 extern tree get_scope_of_declarator (const cp_declarator *);
3707 extern void grok_special_member_properties (tree);
3708 extern int grok_ctor_properties (tree, tree);
3709 extern bool grok_op_properties (tree, int, bool);
3710 extern tree xref_tag (enum tag_types, tree, bool, bool);
3711 extern tree xref_tag_from_type (tree, tree, int);
3712 extern void xref_basetypes (tree, tree);
3713 extern tree start_enum (tree);
3714 extern void finish_enum (tree);
3715 extern void build_enumerator (tree, tree, tree);
3716 extern void start_preparsed_function (tree, tree, int);
3717 extern int start_function (cp_decl_specifier_seq *, const cp_declarator *, tree);
3718 extern tree begin_function_body (void);
3719 extern void finish_function_body (tree);
3720 extern tree finish_function (int);
3721 extern tree start_method (cp_decl_specifier_seq *, const cp_declarator *, tree);
3722 extern tree finish_method (tree);
3723 extern void maybe_register_incomplete_var (tree);
3724 extern void complete_vars (tree);
3725 extern void finish_stmt (void);
3726 extern void print_other_binding_stack (struct cp_binding_level *);
3727 extern void revert_static_member_fn (tree);
3728 extern void fixup_anonymous_aggr (tree);
3729 extern int check_static_variable_definition (tree, tree);
3730 extern tree compute_array_index_type (tree, tree);
3731 extern tree check_default_argument (tree, tree);
3732 extern int vtable_decl_p (tree, void *);
3733 extern int vtype_decl_p (tree, void *);
3734 extern int sigtable_decl_p (tree, void *);
3735 typedef bool (*walk_globals_pred) (tree, void *);
3736 typedef bool (*walk_globals_fn) (tree *, void *);
3737 extern bool walk_globals (walk_globals_pred, walk_globals_fn, void *);
3738 extern bool walk_vtables (walk_globals_pred, walk_globals_fn, void *);
3739 typedef int (*walk_namespaces_fn) (tree, void *);
3740 extern int walk_namespaces (walk_namespaces_fn,
3742 extern int wrapup_globals_for_namespace (tree, void *);
3743 extern tree create_implicit_typedef (tree, tree);
3744 extern tree maybe_push_decl (tree);
3745 extern tree force_target_expr (tree, tree);
3746 extern tree build_target_expr_with_type (tree, tree);
3747 extern int local_variable_p (tree);
3748 extern int nonstatic_local_decl_p (tree);
3749 extern tree declare_global_var (tree, tree);
3750 extern tree register_dtor_fn (tree);
3751 extern tmpl_spec_kind current_tmpl_spec_kind (int);
3752 extern tree cp_fname_init (const char *, tree *);
3753 extern tree builtin_function (const char *name, tree type,
3755 enum built_in_class cl,
3756 const char *libname, tree attrs);
3757 extern tree check_elaborated_type_specifier (enum tag_types, tree, bool);
3758 extern void warn_extern_redeclared_static (tree, tree);
3759 extern const char *cxx_comdat_group (tree);
3760 extern bool cp_missing_noreturn_ok_p (tree);
3761 extern void initialize_artificial_var (tree, tree);
3762 extern tree check_var_type (tree, tree);
3764 extern bool have_extern_spec;
3767 extern bool check_java_method (tree);
3768 extern cp_cv_quals grok_method_quals (tree, tree, cp_cv_quals);
3769 extern void maybe_retrofit_in_chrg (tree);
3770 extern void maybe_make_one_only (tree);
3771 extern void grokclassfn (tree, tree, enum overload_flags, cp_cv_quals);
3772 extern tree grok_array_decl (tree, tree);
3773 extern tree delete_sanity (tree, tree, bool, int);
3774 extern tree check_classfn (tree, tree, tree);
3775 extern void check_member_template (tree);
3776 extern tree grokfield (const cp_declarator *, cp_decl_specifier_seq *, tree, tree, tree);
3777 extern tree grokbitfield (const cp_declarator *, cp_decl_specifier_seq *, tree);
3778 extern tree groktypefield (tree, tree);
3779 extern void cplus_decl_attributes (tree *, tree, int);
3780 extern void finish_anon_union (tree);
3781 extern tree finish_table (tree, tree, tree, int);
3782 extern void cp_finish_file (void);
3783 extern tree coerce_new_type (tree);
3784 extern tree coerce_delete_type (tree);
3785 extern void comdat_linkage (tree);
3786 extern void determine_visibility (tree);
3787 extern void import_export_decl (tree);
3788 extern tree build_cleanup (tree);
3789 extern tree build_offset_ref_call_from_tree (tree, tree);
3790 extern void check_default_args (tree);
3791 extern void mark_used (tree);
3792 extern void finish_static_data_member_decl (tree, tree, tree, int);
3793 extern tree cp_build_parm_decl (tree, tree);
3794 extern tree build_artificial_parm (tree, tree);
3795 extern tree get_guard (tree);
3796 extern tree get_guard_cond (tree);
3797 extern tree set_guard (tree);
3798 extern tree cxx_callgraph_analyze_expr (tree *, int *, tree);
3799 extern void mark_needed (tree);
3800 extern bool decl_needed_p (tree);
3801 extern void note_vague_linkage_fn (tree);
3803 /* XXX Not i18n clean. */
3804 #define cp_deprecated(STR) \
3806 if (warn_deprecated) \
3807 warning ("%s is deprecated, please see the documentation for details", \
3812 extern void init_error (void);
3813 extern const char *type_as_string (tree, int);
3814 extern const char *decl_as_string (tree, int);
3815 extern const char *expr_as_string (tree, int);
3816 extern const char *context_as_string (tree, int);
3817 extern const char *lang_decl_name (tree, int);
3818 extern const char *language_to_string (enum languages);
3819 extern void print_instantiation_context (void);
3822 extern void init_exception_processing (void);
3823 extern tree expand_start_catch_block (tree);
3824 extern void expand_end_catch_block (void);
3825 extern void expand_builtin_throw (void);
3826 extern void expand_exception_blocks (void);
3827 extern tree build_exc_ptr (void);
3828 extern tree build_throw (tree);
3829 extern void mark_all_runtime_matches (void);
3830 extern int nothrow_libfn_p (tree);
3831 extern void check_handlers (tree);
3832 extern void choose_personality_routine (enum languages);
3833 extern tree eh_type_info (tree);
3836 extern rtx cxx_expand_expr (tree, rtx,
3839 extern tree cplus_expand_constant (tree);
3842 extern int is_friend (tree, tree);
3843 extern void make_friend_class (tree, tree, bool);
3844 extern void add_friend (tree, tree, bool);
3845 extern tree do_friend (tree, tree, tree, tree, enum overload_flags, cp_cv_quals, int);
3848 extern tree expand_member_init (tree);
3849 extern void emit_mem_initializers (tree);
3850 extern tree build_aggr_init (tree, tree, int);
3851 extern tree build_init (tree, tree, int);
3852 extern int is_aggr_type (tree, int);
3853 extern tree get_type_value (tree);
3854 extern tree build_zero_init (tree, tree, bool);
3855 extern tree build_offset_ref (tree, tree, bool);
3856 extern tree build_new (tree, tree, tree, tree, int);
3857 extern tree build_vec_init (tree, tree, tree, int);
3858 extern tree build_x_delete (tree, int, tree);
3859 extern tree build_delete (tree, tree, special_function_kind, int, int);
3860 extern void push_base_cleanups (void);
3861 extern tree build_vbase_delete (tree, tree);
3862 extern tree build_vec_delete (tree, tree, special_function_kind, int);
3863 extern tree create_temporary_var (tree);
3864 extern void initialize_vtbl_ptrs (tree);
3865 extern tree build_java_class_ref (tree);
3868 extern void cxx_dup_lang_specific_decl (tree);
3869 extern void print_parse_statistics (void);
3870 extern void do_pending_inlines (void);
3871 extern void yyungetc (int, int);
3872 extern void snarf_method (tree);
3874 extern void see_typename (void);
3875 extern tree unqualified_name_lookup_error (tree);
3876 extern tree unqualified_fn_lookup_error (tree);
3877 extern tree build_lang_decl (enum tree_code, tree, tree);
3878 extern void retrofit_lang_decl (tree);
3879 extern tree copy_decl (tree);
3880 extern tree copy_type (tree);
3881 extern tree cxx_make_type (enum tree_code);
3882 extern tree make_aggr_type (enum tree_code);
3883 extern void yyerror (const char *);
3884 extern void yyhook (int);
3885 extern int cp_type_qual_from_rid (tree);
3886 extern bool cxx_init (void);
3887 extern void cxx_finish (void);
3890 extern void init_method (void);
3891 extern tree make_thunk (tree, bool, tree, tree);
3892 extern void finish_thunk (tree);
3893 extern void use_thunk (tree, bool);
3894 extern void synthesize_method (tree);
3895 extern tree implicitly_declare_fn (special_function_kind, tree, bool);
3896 extern tree lazily_declare_fn (special_function_kind, tree);
3897 extern tree skip_artificial_parms_for (tree, tree);
3900 extern bool maybe_clone_body (tree);
3903 extern void check_template_shadow (tree);
3904 extern tree get_innermost_template_args (tree, int);
3905 extern void maybe_begin_member_template_processing (tree);
3906 extern void maybe_end_member_template_processing (void);
3907 extern tree finish_member_template_decl (tree);
3908 extern void begin_template_parm_list (void);
3909 extern void begin_specialization (void);
3910 extern void reset_specialization (void);
3911 extern void end_specialization (void);
3912 extern void begin_explicit_instantiation (void);
3913 extern void end_explicit_instantiation (void);
3914 extern tree check_explicit_specialization (tree, tree, int, int);
3915 extern tree process_template_parm (tree, tree, bool);
3916 extern tree end_template_parm_list (tree);
3917 extern void end_template_decl (void);
3918 extern tree current_template_args (void);
3919 extern tree push_template_decl (tree);
3920 extern tree push_template_decl_real (tree, int);
3921 extern void redeclare_class_template (tree, tree);
3922 extern tree lookup_template_class (tree, tree, tree, tree, int, tsubst_flags_t);
3923 extern tree lookup_template_function (tree, tree);
3924 extern int uses_template_parms (tree);
3925 extern int uses_template_parms_level (tree, int);
3926 extern tree instantiate_class_template (tree);
3927 extern tree instantiate_template (tree, tree, tsubst_flags_t);
3928 extern int fn_type_unification (tree, tree, tree, tree, tree, unification_kind_t, int);
3929 extern tree tinst_for_decl (void);
3930 extern void mark_decl_instantiated (tree, int);
3931 extern int more_specialized (tree, tree, int, int);
3932 extern void mark_class_instantiated (tree, int);
3933 extern void do_decl_instantiation (tree, tree);
3934 extern void do_type_instantiation (tree, tree, tsubst_flags_t);
3935 extern tree instantiate_decl (tree, int, int);
3936 extern int push_tinst_level (tree);
3937 extern void pop_tinst_level (void);
3938 extern int more_specialized_class (tree, tree, tree);
3939 extern int comp_template_parms (tree, tree);
3940 extern int template_class_depth (tree);
3941 extern int is_specialization_of (tree, tree);
3942 extern bool is_specialization_of_friend (tree, tree);
3943 extern int comp_template_args (tree, tree);
3944 extern void maybe_process_partial_specialization (tree);
3945 extern void maybe_check_template_type (tree);
3946 extern tree most_specialized_instantiation (tree);
3947 extern void print_candidates (tree);
3948 extern void instantiate_pending_templates (int);
3949 extern tree tsubst_default_argument (tree, tree, tree);
3950 extern tree tsubst_copy_and_build (tree, tree, tsubst_flags_t, tree, bool);
3951 extern tree most_general_template (tree);
3952 extern tree get_mostly_instantiated_function_type (tree);
3953 extern int problematic_instantiation_changed (void);
3954 extern void record_last_problematic_instantiation (void);
3955 extern tree current_instantiation (void);
3956 extern tree maybe_get_template_decl_from_type_decl (tree);
3957 extern int processing_template_parmlist;
3958 extern bool dependent_type_p (tree);
3959 extern bool any_dependent_template_arguments_p (tree);
3960 extern bool dependent_template_p (tree);
3961 extern bool dependent_template_id_p (tree, tree);
3962 extern bool type_dependent_expression_p (tree);
3963 extern bool any_type_dependent_arguments_p (tree);
3964 extern bool value_dependent_expression_p (tree);
3965 extern tree resolve_typename_type (tree, bool);
3966 extern tree template_for_substitution (tree);
3967 extern tree build_non_dependent_expr (tree);
3968 extern tree build_non_dependent_args (tree);
3969 extern bool reregister_specialization (tree, tree, tree);
3970 extern tree fold_non_dependent_expr (tree);
3973 extern void init_repo (void);
3974 extern int repo_emit_p (tree);
3975 extern bool repo_export_class_p (tree);
3976 extern void finish_repo (void);
3979 /* A vector of all tinfo decls that haven't been emitted yet. */
3980 extern GTY(()) VEC(tree) *unemitted_tinfo_decls;
3982 extern void init_rtti_processing (void);
3983 extern tree build_typeid (tree);
3984 extern tree get_tinfo_decl (tree);
3985 extern tree get_typeid (tree);
3986 extern tree build_dynamic_cast (tree, tree);
3987 extern void emit_support_tinfos (void);
3988 extern bool emit_tinfo_decl (tree);
3991 extern bool accessible_base_p (tree, tree);
3992 extern tree lookup_base (tree, tree, base_access, base_kind *);
3993 extern tree get_dynamic_cast_base_type (tree, tree);
3994 extern int accessible_p (tree, tree);
3995 extern tree lookup_field_1 (tree, tree, bool);
3996 extern tree lookup_field (tree, tree, int, bool);
3997 extern int lookup_fnfields_1 (tree, tree);
3998 extern int class_method_index_for_fn (tree, tree);
3999 extern tree lookup_fnfields (tree, tree, int);
4000 extern tree lookup_member (tree, tree, int, bool);
4001 extern int look_for_overrides (tree, tree);
4002 extern void get_pure_virtuals (tree);
4003 extern void maybe_suppress_debug_info (tree);
4004 extern void note_debug_info_needed (tree);
4005 extern void print_search_statistics (void);
4006 extern void reinit_search_statistics (void);
4007 extern tree current_scope (void);
4008 extern int at_function_scope_p (void);
4009 extern bool at_class_scope_p (void);
4010 extern bool at_namespace_scope_p (void);
4011 extern tree context_for_name_lookup (tree);
4012 extern tree lookup_conversions (tree);
4013 extern tree binfo_for_vtable (tree);
4014 extern tree binfo_from_vbase (tree);
4015 extern tree binfo_for_vbase (tree, tree);
4016 extern tree look_for_overrides_here (tree, tree);
4017 extern int check_final_overrider (tree, tree);
4018 #define dfs_skip_bases ((tree)1)
4019 extern tree dfs_walk_all (tree, tree (*) (tree, void *),
4020 tree (*) (tree, void *), void *);
4021 extern tree dfs_walk_once (tree, tree (*) (tree, void *),
4022 tree (*) (tree, void *), void *);
4023 extern tree binfo_via_virtual (tree, tree);
4024 extern tree build_baselink (tree, tree, tree, tree);
4025 extern tree adjust_result_of_qualified_name_lookup
4027 extern tree copied_binfo (tree, tree);
4028 extern tree original_binfo (tree, tree);
4029 extern int shared_member_p (tree);
4031 /* in semantics.c */
4032 extern void push_deferring_access_checks (deferring_kind);
4033 extern void resume_deferring_access_checks (void);
4034 extern void stop_deferring_access_checks (void);
4035 extern void pop_deferring_access_checks (void);
4036 extern tree get_deferred_access_checks (void);
4037 extern void pop_to_parent_deferring_access_checks (void);
4038 extern void perform_deferred_access_checks (void);
4039 extern void perform_or_defer_access_check (tree, tree);
4040 extern void init_cp_semantics (void);
4041 extern tree do_poplevel (tree);
4042 extern void add_decl_expr (tree);
4043 extern tree finish_expr_stmt (tree);
4044 extern tree begin_if_stmt (void);
4045 extern void finish_if_stmt_cond (tree, tree);
4046 extern tree finish_then_clause (tree);
4047 extern void begin_else_clause (tree);
4048 extern void finish_else_clause (tree);
4049 extern void finish_if_stmt (tree);
4050 extern tree begin_while_stmt (void);
4051 extern void finish_while_stmt_cond (tree, tree);
4052 extern void finish_while_stmt (tree);
4053 extern tree begin_do_stmt (void);
4054 extern void finish_do_body (tree);
4055 extern void finish_do_stmt (tree, tree);
4056 extern tree finish_return_stmt (tree);
4057 extern tree begin_for_stmt (void);
4058 extern void finish_for_init_stmt (tree);
4059 extern void finish_for_cond (tree, tree);
4060 extern void finish_for_expr (tree, tree);
4061 extern void finish_for_stmt (tree);
4062 extern tree finish_break_stmt (void);
4063 extern tree finish_continue_stmt (void);
4064 extern tree begin_switch_stmt (void);
4065 extern void finish_switch_cond (tree, tree);
4066 extern void finish_switch_stmt (tree);
4067 extern tree finish_case_label (tree, tree);
4068 extern tree finish_goto_stmt (tree);
4069 extern tree begin_try_block (void);
4070 extern void finish_try_block (tree);
4071 extern tree begin_eh_spec_block (void);
4072 extern void finish_eh_spec_block (tree, tree);
4073 extern void finish_handler_sequence (tree);
4074 extern tree begin_function_try_block (void);
4075 extern void finish_function_try_block (tree);
4076 extern void finish_function_handler_sequence (tree);
4077 extern void finish_cleanup_try_block (tree);
4078 extern tree begin_handler (void);
4079 extern void finish_handler_parms (tree, tree);
4080 extern void begin_catch_block (tree);
4081 extern void finish_handler (tree);
4082 extern void finish_cleanup (tree, tree);
4089 extern tree begin_compound_stmt (unsigned int);
4091 extern void finish_compound_stmt (tree);
4092 extern tree finish_asm_stmt (int, tree, tree, tree, tree);
4093 extern tree finish_label_stmt (tree);
4094 extern void finish_label_decl (tree);
4095 extern void finish_subobject (tree);
4096 extern tree finish_parenthesized_expr (tree);
4097 extern tree finish_non_static_data_member (tree, tree, tree);
4098 extern tree begin_stmt_expr (void);
4099 extern tree finish_stmt_expr_expr (tree, tree);
4100 extern tree finish_stmt_expr (tree, bool);
4101 extern tree perform_koenig_lookup (tree, tree);
4102 extern tree finish_call_expr (tree, tree, bool, bool);
4103 extern tree finish_increment_expr (tree, enum tree_code);
4104 extern tree finish_this_expr (void);
4105 extern tree finish_pseudo_destructor_expr (tree, tree, tree);
4106 extern tree finish_unary_op_expr (enum tree_code, tree);
4107 extern tree finish_compound_literal (tree, tree);
4108 extern tree finish_fname (tree);
4109 extern void finish_translation_unit (void);
4110 extern tree finish_template_type_parm (tree, tree);
4111 extern tree finish_template_template_parm (tree, tree);
4112 extern tree begin_class_definition (tree);
4113 extern void finish_default_args (void);
4114 extern void finish_template_decl (tree);
4115 extern tree finish_template_type (tree, tree, int);
4116 extern tree finish_base_specifier (tree, tree, bool);
4117 extern void finish_member_declaration (tree);
4118 extern void check_multiple_declarators (void);
4119 extern void qualified_name_lookup_error (tree, tree, tree);
4120 extern tree finish_id_expression (tree, tree, tree,
4121 cp_id_kind *, tree *,
4124 extern tree finish_typeof (tree);
4125 extern void finish_decl_cleanup (tree, tree);
4126 extern void finish_eh_cleanup (tree);
4127 extern void expand_body (tree);
4128 extern void cxx_expand_function_start (void);
4129 extern void finish_mem_initializers (tree);
4130 extern void setup_vtbl_ptr (tree, tree);
4131 extern void clear_out_block (void);
4132 extern tree check_template_template_default_arg (tree);
4133 extern void expand_or_defer_fn (tree);
4134 extern void check_accessibility_of_qualified_id (tree, tree, tree);
4135 extern tree finish_qualified_id_expr (tree, tree, bool, bool);
4136 extern void simplify_aggr_init_expr (tree *);
4137 extern void finalize_nrv (tree *, tree, tree);
4140 extern void lang_check_failed (const char *, int,
4142 extern tree stabilize_expr (tree, tree *);
4143 extern void stabilize_call (tree, tree *);
4144 extern bool stabilize_init (tree, tree *);
4145 extern tree add_stmt_to_compound (tree, tree);
4146 extern tree cxx_maybe_build_cleanup (tree);
4147 extern void init_tree (void);
4148 extern int pod_type_p (tree);
4149 extern int zero_init_p (tree);
4150 extern tree canonical_type_variant (tree);
4151 extern tree copy_binfo (tree, tree, tree,
4153 extern int member_p (tree);
4154 extern cp_lvalue_kind real_lvalue_p (tree);
4155 extern int lvalue_or_else (tree, const char *);
4156 extern tree build_min (enum tree_code, tree, ...);
4157 extern tree build_min_nt (enum tree_code, ...);
4158 extern tree build_min_non_dep (enum tree_code, tree, ...);
4159 extern tree build_cplus_new (tree, tree);
4160 extern tree get_target_expr (tree);
4161 extern tree build_cplus_staticfn_type (tree, tree, tree);
4162 extern tree build_cplus_array_type (tree, tree);
4163 extern tree hash_tree_cons (tree, tree, tree);
4164 extern tree hash_tree_chain (tree, tree);
4165 extern tree hash_chainon (tree, tree);
4166 extern int count_functions (tree);
4167 extern int is_overloaded_fn (tree);
4168 extern tree get_first_fn (tree);
4169 extern int bound_pmf_p (tree);
4170 extern tree ovl_cons (tree, tree);
4171 extern tree build_overload (tree, tree);
4172 extern tree function_arg_chain (tree);
4173 extern int promotes_to_aggr_type (tree, enum tree_code);
4174 extern const char *cxx_printable_name (tree, int);
4175 extern tree build_exception_variant (tree, tree);
4176 extern tree bind_template_template_parm (tree, tree);
4177 extern tree array_type_nelts_total (tree);
4178 extern tree array_type_nelts_top (tree);
4179 extern tree break_out_target_exprs (tree);
4180 extern tree get_type_decl (tree);
4181 extern tree decl_namespace_context (tree);
4182 extern tree lvalue_type (tree);
4183 extern tree error_type (tree);
4184 extern int varargs_function_p (tree);
4185 extern int really_overloaded_fn (tree);
4186 extern bool cp_tree_equal (tree, tree);
4187 extern tree no_linkage_check (tree, bool);
4188 extern void debug_binfo (tree);
4189 extern tree build_dummy_object (tree);
4190 extern tree maybe_dummy_object (tree, tree *);
4191 extern int is_dummy_object (tree);
4192 extern const struct attribute_spec cxx_attribute_table[];
4193 extern tree make_tinst_level (tree, location_t);
4194 extern tree make_ptrmem_cst (tree, tree);
4195 extern tree cp_build_type_attribute_variant (tree, tree);
4196 extern tree cp_build_qualified_type_real (tree, int, tsubst_flags_t);
4197 #define cp_build_qualified_type(TYPE, QUALS) \
4198 cp_build_qualified_type_real ((TYPE), (QUALS), tf_error | tf_warning)
4199 extern special_function_kind special_function_p (tree);
4200 extern bool name_p (tree);
4201 extern int count_trees (tree);
4202 extern int char_type_p (tree);
4203 extern void verify_stmt_tree (tree);
4204 extern tree find_tree (tree, tree);
4205 extern linkage_kind decl_linkage (tree);
4206 extern tree cp_walk_subtrees (tree*, int*, walk_tree_fn,
4208 extern int cp_cannot_inline_tree_fn (tree*);
4209 extern tree cp_add_pending_fn_decls (void*,tree);
4210 extern int cp_is_overload_p (tree);
4211 extern int cp_auto_var_in_fn_p (tree,tree);
4212 extern void cp_update_decl_after_saving (tree, void *);
4213 extern tree fold_if_not_in_template (tree);
4216 extern int string_conv_p (tree, tree, int);
4217 extern tree cp_truthvalue_conversion (tree);
4218 extern tree condition_conversion (tree);
4219 extern tree target_type (tree);
4220 extern tree require_complete_type (tree);
4221 extern tree complete_type (tree);
4222 extern tree complete_type_or_diagnostic (tree, tree, int);
4223 #define complete_type_or_else(T,V) (complete_type_or_diagnostic ((T), (V), 0))
4224 extern int type_unknown_p (tree);
4225 extern tree commonparms (tree, tree);
4226 extern tree original_type (tree);
4227 extern bool comp_except_specs (tree, tree, bool);
4228 extern bool comptypes (tree, tree, int);
4229 extern bool compparms (tree, tree);
4230 extern int comp_cv_qualification (tree, tree);
4231 extern int comp_cv_qual_signature (tree, tree);
4232 extern tree cxx_sizeof_or_alignof_expr (tree, enum tree_code);
4233 extern tree cxx_sizeof_or_alignof_type (tree, enum tree_code, bool);
4234 #define cxx_sizeof_nowarn(T) cxx_sizeof_or_alignof_type (T, SIZEOF_EXPR, false)
4235 extern tree inline_conversion (tree);
4236 extern tree decay_conversion (tree);
4237 extern tree perform_integral_promotions (tree);
4238 extern tree build_class_member_access_expr (tree, tree, tree, bool);
4239 extern tree finish_class_member_access_expr (tree, tree);
4240 extern tree build_x_indirect_ref (tree, const char *);
4241 extern tree build_indirect_ref (tree, const char *);
4242 extern tree build_array_ref (tree, tree);
4243 extern tree get_member_function_from_ptrfunc (tree *, tree);
4244 extern tree convert_arguments (tree, tree, tree, int);
4245 extern tree build_x_binary_op (enum tree_code, tree, tree,
4247 extern tree build_x_unary_op (enum tree_code, tree);
4248 extern tree unary_complex_lvalue (enum tree_code, tree);
4249 extern tree build_x_conditional_expr (tree, tree, tree);
4250 extern tree build_x_compound_expr_from_list (tree, const char *);
4251 extern tree build_x_compound_expr (tree, tree);
4252 extern tree build_compound_expr (tree, tree);
4253 extern tree build_static_cast (tree, tree);
4254 extern tree build_reinterpret_cast (tree, tree);
4255 extern tree build_const_cast (tree, tree);
4256 extern tree build_c_cast (tree, tree);
4257 extern tree build_x_modify_expr (tree, enum tree_code, tree);
4258 extern tree build_modify_expr (tree, enum tree_code, tree);
4259 extern tree dubious_conversion_warnings (tree, tree, const char *, tree, int);
4260 extern tree convert_for_initialization (tree, tree, tree, int, const char *, tree, int);
4261 extern int comp_ptr_ttypes (tree, tree);
4262 extern int ptr_reasonably_similar (tree, tree);
4263 extern tree build_ptrmemfunc (tree, tree, int);
4264 extern int cp_type_quals (tree);
4265 extern bool cp_has_mutable_p (tree);
4266 extern bool at_least_as_qualified_p (tree, tree);
4267 extern bool more_qualified_p (tree, tree);
4268 extern tree build_ptrmemfunc1 (tree, tree, tree);
4269 extern void expand_ptrmemfunc_cst (tree, tree *, tree *);
4270 extern tree pfn_from_ptrmemfunc (tree);
4271 extern tree type_after_usual_arithmetic_conversions (tree, tree);
4272 extern tree composite_pointer_type (tree, tree, tree, tree,
4274 extern tree merge_types (tree, tree);
4275 extern tree check_return_expr (tree);
4276 #define cp_build_binary_op(code, arg1, arg2) \
4277 build_binary_op(code, arg1, arg2, 1)
4278 #define cxx_sizeof(T) cxx_sizeof_or_alignof_type (T, SIZEOF_EXPR, true)
4279 #define cxx_alignof(T) cxx_sizeof_or_alignof_type (T, ALIGNOF_EXPR, true)
4280 extern tree build_ptrmemfunc_access_expr (tree, tree);
4281 extern tree build_address (tree);
4282 extern tree build_nop (tree, tree);
4283 extern tree non_reference (tree);
4284 extern tree lookup_anon_field (tree, tree);
4285 extern bool invalid_nonstatic_memfn_p (tree);
4288 extern void require_complete_eh_spec_types (tree, tree);
4289 extern void cxx_incomplete_type_diagnostic (tree, tree, int);
4290 #undef cxx_incomplete_type_error
4291 extern void cxx_incomplete_type_error (tree, tree);
4292 #define cxx_incomplete_type_error(V,T) \
4293 (cxx_incomplete_type_diagnostic ((V), (T), 0))
4294 extern tree error_not_base_type (tree, tree);
4295 extern tree binfo_or_else (tree, tree);
4296 extern void readonly_error (tree, const char *, int);
4297 extern void complete_type_check_abstract (tree);
4298 extern int abstract_virtuals_error (tree, tree);
4300 extern tree store_init_value (tree, tree);
4301 extern tree digest_init (tree, tree, tree *);
4302 extern tree build_scoped_ref (tree, tree, tree *);
4303 extern tree build_x_arrow (tree);
4304 extern tree build_m_component_ref (tree, tree);
4305 extern tree build_functional_cast (tree, tree);
4306 extern tree add_exception_specifier (tree, tree, int);
4307 extern tree merge_exception_specifiers (tree, tree);
4310 extern void init_mangle (void);
4311 extern void mangle_decl (tree);
4312 extern const char *mangle_type_string (tree);
4313 extern tree mangle_typeinfo_for_type (tree);
4314 extern tree mangle_typeinfo_string_for_type (tree);
4315 extern tree mangle_vtbl_for_type (tree);
4316 extern tree mangle_vtt_for_type (tree);
4317 extern tree mangle_ctor_vtbl_for_type (tree, tree);
4318 extern tree mangle_thunk (tree, int, tree, tree);
4319 extern tree mangle_conv_op_name_for_type (tree);
4320 extern tree mangle_guard_variable (tree);
4321 extern tree mangle_ref_init_variable (tree);
4324 extern bool cp_dump_tree (void *, tree);
4326 /* in cp-simplify.c */
4327 extern int cp_gimplify_expr (tree *, tree *, tree *);
4328 extern void cp_genericize (tree);
4332 /* In order for the format checking to accept the C++ frontend
4333 diagnostic framework extensions, you must include this file before
4334 toplev.h, not after. */
4335 #define GCC_DIAG_STYLE __gcc_cxxdiag__
4336 #if GCC_VERSION >= 3004
4337 #define ATTRIBUTE_GCC_CXXDIAG(m, n) __attribute__ ((__format__ (GCC_DIAG_STYLE, m, n))) ATTRIBUTE_NONNULL(m)
4339 #define ATTRIBUTE_GCC_CXXDIAG(m, n) ATTRIBUTE_NONNULL(m)
4342 extern void cp_error_at (const char *, ...) ATTRIBUTE_GCC_CXXDIAG(1, 2);
4343 extern void cp_warning_at (const char *, ...) ATTRIBUTE_GCC_CXXDIAG(1, 2);
4344 extern void cp_pedwarn_at (const char *, ...) ATTRIBUTE_GCC_CXXDIAG(1, 2);
4346 #endif /* ! GCC_CP_TREE_H */