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[official-gcc.git] / gomp-20050608-branch / gcc / cp / cp-tree.h
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1 /* Definitions for C++ parsing and type checking.
2 Copyright (C) 1987, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001, 2002, 2003, 2004, 2005, 2006 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)
11 any later version.
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, 51 Franklin Street, Fifth Floor,
21 Boston, MA 02110-1301, USA. */
23 #ifndef GCC_CP_TREE_H
24 #define GCC_CP_TREE_H
26 #include "ggc.h"
27 #include "function.h"
28 #include "hashtab.h"
29 #include "splay-tree.h"
30 #include "vec.h"
31 #include "varray.h"
32 #include "c-common.h"
33 #include "name-lookup.h"
34 struct diagnostic_context;
36 /* Usage of TREE_LANG_FLAG_?:
37 0: IDENTIFIER_MARKED (IDENTIFIER_NODEs)
38 NEW_EXPR_USE_GLOBAL (in NEW_EXPR).
39 DELETE_EXPR_USE_GLOBAL (in DELETE_EXPR).
40 COMPOUND_EXPR_OVERLOADED (in COMPOUND_EXPR).
41 TREE_INDIRECT_USING (in NAMESPACE_DECL).
42 CLEANUP_P (in TRY_BLOCK)
43 AGGR_INIT_VIA_CTOR_P (in AGGR_INIT_EXPR)
44 PTRMEM_OK_P (in ADDR_EXPR, OFFSET_REF)
45 PAREN_STRING_LITERAL (in STRING_CST)
46 DECL_PRETTY_FUNCTION_P (in VAR_DECL)
47 KOENIG_LOOKUP_P (in CALL_EXPR)
48 STATEMENT_LIST_NO_SCOPE (in STATEMENT_LIST).
49 EXPR_STMT_STMT_EXPR_RESULT (in EXPR_STMT)
50 STMT_EXPR_NO_SCOPE (in STMT_EXPR)
51 BIND_EXPR_TRY_BLOCK (in BIND_EXPR)
52 TYPENAME_IS_ENUM_P (in TYPENAME_TYPE)
53 REFERENCE_REF_P (in INDIRECT_EXPR)
54 QUALIFIED_NAME_IS_TEMPLATE (in SCOPE_REF)
55 OMP_ATOMIC_DEPENDENT_P (in OMP_ATOMIC)
56 OMP_FOR_GIMPLIFYING_P (in OMP_FOR)
57 BASELINK_QUALIFIED_P (in BASELINK)
58 1: IDENTIFIER_VIRTUAL_P (in IDENTIFIER_NODE)
59 TI_PENDING_TEMPLATE_FLAG.
60 TEMPLATE_PARMS_FOR_INLINE.
61 DELETE_EXPR_USE_VEC (in DELETE_EXPR).
62 (TREE_CALLS_NEW) (in _EXPR or _REF) (commented-out).
63 ICS_ELLIPSIS_FLAG (in _CONV)
64 DECL_INITIALIZED_P (in VAR_DECL)
65 TYPENAME_IS_CLASS_P (in TYPENAME_TYPE)
66 STMT_IS_FULL_EXPR_P (in _STMT)
67 2: IDENTIFIER_OPNAME_P (in IDENTIFIER_NODE)
68 ICS_THIS_FLAG (in _CONV)
69 DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (in VAR_DECL)
70 STATEMENT_LIST_TRY_BLOCK (in STATEMENT_LIST)
71 3: (TREE_REFERENCE_EXPR) (in NON_LVALUE_EXPR) (commented-out).
72 ICS_BAD_FLAG (in _CONV)
73 FN_TRY_BLOCK_P (in TRY_BLOCK)
74 IDENTIFIER_CTOR_OR_DTOR_P (in IDENTIFIER_NODE)
75 BIND_EXPR_BODY_BLOCK (in BIND_EXPR)
76 DECL_NON_TRIVIALLY_INITIALIZED_P (in VAR_DECL)
77 4: TREE_HAS_CONSTRUCTOR (in INDIRECT_REF, SAVE_EXPR, CONSTRUCTOR,
78 or FIELD_DECL).
79 IDENTIFIER_TYPENAME_P (in IDENTIFIER_NODE)
80 DECL_TINFO_P (in VAR_DECL)
81 5: C_IS_RESERVED_WORD (in IDENTIFIER_NODE)
82 DECL_VTABLE_OR_VTT_P (in VAR_DECL)
83 6: IDENTIFIER_REPO_CHOSEN (in IDENTIFIER_NODE)
84 DECL_CONSTRUCTION_VTABLE_P (in VAR_DECL)
85 TYPE_MARKED_P (in _TYPE)
87 Usage of TYPE_LANG_FLAG_?:
88 0: TYPE_DEPENDENT_P
89 1: TYPE_HAS_CONSTRUCTOR.
90 2: Unused
91 3: TYPE_FOR_JAVA.
92 4: TYPE_HAS_NONTRIVIAL_DESTRUCTOR
93 5: IS_AGGR_TYPE.
94 6: TYPE_DEPENDENT_P_VALID
96 Usage of DECL_LANG_FLAG_?:
97 0: DECL_ERROR_REPORTED (in VAR_DECL).
98 DECL_TEMPLATE_PARM_P (in PARM_DECL, CONST_DECL, TYPE_DECL, or TEMPLATE_DECL)
99 DECL_LOCAL_FUNCTION_P (in FUNCTION_DECL)
100 DECL_MUTABLE_P (in FIELD_DECL)
101 DECL_DEPENDENT_P (in USING_DECL)
102 1: C_TYPEDEF_EXPLICITLY_SIGNED (in TYPE_DECL).
103 DECL_TEMPLATE_INSTANTIATED (in a VAR_DECL or a FUNCTION_DECL)
104 DECL_MEMBER_TEMPLATE_P (in TEMPLATE_DECL)
105 2: DECL_THIS_EXTERN (in VAR_DECL or FUNCTION_DECL).
106 DECL_IMPLICIT_TYPEDEF_P (in a TYPE_DECL)
107 3: DECL_IN_AGGR_P.
108 4: DECL_C_BIT_FIELD (in a FIELD_DECL)
109 DECL_VAR_MARKED_P (in a VAR_DECL)
110 DECL_SELF_REFERENCE_P (in a TYPE_DECL)
111 DECL_INVALID_OVERRIDER_P (in a FUNCTION_DECL)
112 5: DECL_INTERFACE_KNOWN.
113 6: DECL_THIS_STATIC (in VAR_DECL or FUNCTION_DECL).
114 DECL_FIELD_IS_BASE (in FIELD_DECL)
115 7: DECL_DEAD_FOR_LOCAL (in VAR_DECL).
116 DECL_THUNK_P (in a member FUNCTION_DECL)
118 Usage of language-independent fields in a language-dependent manner:
120 TYPE_ALIAS_SET
121 This field is used by TYPENAME_TYPEs, TEMPLATE_TYPE_PARMs, and so
122 forth as a substitute for the mark bits provided in `lang_type'.
123 At present, only the six low-order bits are used.
125 TYPE_LANG_SLOT_1
126 For an ENUMERAL_TYPE, this is ENUM_TEMPLATE_INFO.
127 For a FUNCTION_TYPE or METHOD_TYPE, this is TYPE_RAISES_EXCEPTIONS
129 BINFO_VIRTUALS
130 For a binfo, this is a TREE_LIST. There is an entry for each
131 virtual function declared either in BINFO or its direct and
132 indirect primary bases.
134 The BV_DELTA of each node gives the amount by which to adjust the
135 `this' pointer when calling the function. If the method is an
136 overridden version of a base class method, then it is assumed
137 that, prior to adjustment, the this pointer points to an object
138 of the base class.
140 The BV_VCALL_INDEX of each node, if non-NULL, gives the vtable
141 index of the vcall offset for this entry.
143 The BV_FN is the declaration for the virtual function itself.
145 BINFO_VTABLE
146 This is an expression with POINTER_TYPE that gives the value
147 to which the vptr should be initialized. Use get_vtbl_decl_for_binfo
148 to extract the VAR_DECL for the complete vtable.
150 DECL_ARGUMENTS
151 For a VAR_DECL this is DECL_ANON_UNION_ELEMS.
153 DECL_VINDEX
154 This field is NULL for a non-virtual function. For a virtual
155 function, it is eventually set to an INTEGER_CST indicating the
156 index in the vtable at which this function can be found. When
157 a virtual function is declared, but before it is known what
158 function is overridden, this field is the error_mark_node.
160 Temporarily, it may be set to a TREE_LIST whose TREE_VALUE is
161 the virtual function this one overrides, and whose TREE_CHAIN is
162 the old DECL_VINDEX. */
164 /* Language-specific tree checkers. */
166 #define VAR_OR_FUNCTION_DECL_CHECK(NODE) \
167 TREE_CHECK2(NODE,VAR_DECL,FUNCTION_DECL)
169 #define VAR_FUNCTION_OR_PARM_DECL_CHECK(NODE) \
170 TREE_CHECK3(NODE,VAR_DECL,FUNCTION_DECL,PARM_DECL)
172 #define VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK(NODE) \
173 TREE_CHECK4(NODE,VAR_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL)
175 #define BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK(NODE) \
176 TREE_CHECK(NODE,BOUND_TEMPLATE_TEMPLATE_PARM)
178 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
179 #define NON_THUNK_FUNCTION_CHECK(NODE) __extension__ \
180 ({ const tree __t = (NODE); \
181 if (TREE_CODE (__t) != FUNCTION_DECL && \
182 TREE_CODE (__t) != TEMPLATE_DECL && __t->decl_common.lang_specific \
183 && __t->decl_common.lang_specific->decl_flags.thunk_p) \
184 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, 0); \
185 __t; })
186 #define THUNK_FUNCTION_CHECK(NODE) __extension__ \
187 ({ const tree __t = (NODE); \
188 if (TREE_CODE (__t) != FUNCTION_DECL || !__t->decl_common.lang_specific \
189 || !__t->decl_common.lang_specific->decl_flags.thunk_p) \
190 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, 0); \
191 __t; })
192 #else
193 #define NON_THUNK_FUNCTION_CHECK(NODE) (NODE)
194 #define THUNK_FUNCTION_CHECK(NODE) (NODE)
195 #endif
197 /* Language-dependent contents of an identifier. */
199 struct lang_identifier GTY(())
201 struct c_common_identifier c_common;
202 cxx_binding *namespace_bindings;
203 cxx_binding *bindings;
204 tree class_template_info;
205 tree label_value;
208 /* In an IDENTIFIER_NODE, nonzero if this identifier is actually a
209 keyword. C_RID_CODE (node) is then the RID_* value of the keyword,
210 and C_RID_YYCODE is the token number wanted by Yacc. */
212 #define C_IS_RESERVED_WORD(ID) TREE_LANG_FLAG_5 (ID)
214 #define LANG_IDENTIFIER_CAST(NODE) \
215 ((struct lang_identifier*)IDENTIFIER_NODE_CHECK (NODE))
217 struct template_parm_index_s GTY(())
219 struct tree_common common;
220 HOST_WIDE_INT index;
221 HOST_WIDE_INT level;
222 HOST_WIDE_INT orig_level;
223 tree decl;
225 typedef struct template_parm_index_s template_parm_index;
227 struct tinst_level_s GTY(())
229 struct tree_common common;
230 tree decl;
231 location_t locus;
232 int in_system_header_p;
234 typedef struct tinst_level_s * tinst_level_t;
236 struct ptrmem_cst GTY(())
238 struct tree_common common;
239 /* This isn't used, but the middle-end expects all constants to have
240 this field. */
241 rtx rtl;
242 tree member;
244 typedef struct ptrmem_cst * ptrmem_cst_t;
246 #define IDENTIFIER_GLOBAL_VALUE(NODE) \
247 namespace_binding ((NODE), global_namespace)
248 #define SET_IDENTIFIER_GLOBAL_VALUE(NODE, VAL) \
249 set_namespace_binding ((NODE), global_namespace, (VAL))
250 #define IDENTIFIER_NAMESPACE_VALUE(NODE) \
251 namespace_binding ((NODE), current_namespace)
252 #define SET_IDENTIFIER_NAMESPACE_VALUE(NODE, VAL) \
253 set_namespace_binding ((NODE), current_namespace, (VAL))
255 #define CLEANUP_P(NODE) TREE_LANG_FLAG_0 (TRY_BLOCK_CHECK (NODE))
257 #define BIND_EXPR_TRY_BLOCK(NODE) \
258 TREE_LANG_FLAG_0 (BIND_EXPR_CHECK (NODE))
260 /* Used to mark the block around the member initializers and cleanups. */
261 #define BIND_EXPR_BODY_BLOCK(NODE) \
262 TREE_LANG_FLAG_3 (BIND_EXPR_CHECK (NODE))
263 #define FUNCTION_NEEDS_BODY_BLOCK(NODE) \
264 (DECL_CONSTRUCTOR_P (NODE) || DECL_DESTRUCTOR_P (NODE))
266 #define STATEMENT_LIST_NO_SCOPE(NODE) \
267 TREE_LANG_FLAG_0 (STATEMENT_LIST_CHECK (NODE))
268 #define STATEMENT_LIST_TRY_BLOCK(NODE) \
269 TREE_LANG_FLAG_2 (STATEMENT_LIST_CHECK (NODE))
271 /* Nonzero if this statement should be considered a full-expression,
272 i.e., if temporaries created during this statement should have
273 their destructors run at the end of this statement. */
274 #define STMT_IS_FULL_EXPR_P(NODE) TREE_LANG_FLAG_1 ((NODE))
276 /* Marks the result of a statement expression. */
277 #define EXPR_STMT_STMT_EXPR_RESULT(NODE) \
278 TREE_LANG_FLAG_0 (EXPR_STMT_CHECK (NODE))
280 /* Nonzero if this statement-expression does not have an associated scope. */
281 #define STMT_EXPR_NO_SCOPE(NODE) \
282 TREE_LANG_FLAG_0 (STMT_EXPR_CHECK (NODE))
284 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, in the usual
285 sense of `same'. */
286 #define same_type_p(TYPE1, TYPE2) \
287 comptypes ((TYPE1), (TYPE2), COMPARE_STRICT)
289 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, ignoring
290 top-level qualifiers. */
291 #define same_type_ignoring_top_level_qualifiers_p(TYPE1, TYPE2) \
292 same_type_p (TYPE_MAIN_VARIANT (TYPE1), TYPE_MAIN_VARIANT (TYPE2))
294 /* Nonzero if we are presently building a statement tree, rather
295 than expanding each statement as we encounter it. */
296 #define building_stmt_tree() (cur_stmt_list != NULL_TREE)
298 /* Returns nonzero iff NODE is a declaration for the global function
299 `main'. */
300 #define DECL_MAIN_P(NODE) \
301 (DECL_EXTERN_C_FUNCTION_P (NODE) \
302 && DECL_NAME (NODE) != NULL_TREE \
303 && MAIN_NAME_P (DECL_NAME (NODE)))
305 /* The overloaded FUNCTION_DECL. */
306 #define OVL_FUNCTION(NODE) \
307 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->function)
308 #define OVL_CHAIN(NODE) TREE_CHAIN (NODE)
309 /* Polymorphic access to FUNCTION and CHAIN. */
310 #define OVL_CURRENT(NODE) \
311 ((TREE_CODE (NODE) == OVERLOAD) ? OVL_FUNCTION (NODE) : (NODE))
312 #define OVL_NEXT(NODE) \
313 ((TREE_CODE (NODE) == OVERLOAD) ? TREE_CHAIN (NODE) : NULL_TREE)
314 /* If set, this was imported in a using declaration.
315 This is not to confuse with being used somewhere, which
316 is not important for this node. */
317 #define OVL_USED(NODE) TREE_USED (NODE)
319 struct tree_overload GTY(())
321 struct tree_common common;
322 tree function;
325 /* Returns true iff NODE is a BASELINK. */
326 #define BASELINK_P(NODE) \
327 (TREE_CODE (NODE) == BASELINK)
328 /* The BINFO indicating the base from which the BASELINK_FUNCTIONS came. */
329 #define BASELINK_BINFO(NODE) \
330 (((struct tree_baselink*) BASELINK_CHECK (NODE))->binfo)
331 /* The functions referred to by the BASELINK; either a FUNCTION_DECL,
332 a TEMPLATE_DECL, an OVERLOAD, or a TEMPLATE_ID_EXPR. */
333 #define BASELINK_FUNCTIONS(NODE) \
334 (((struct tree_baselink*) BASELINK_CHECK (NODE))->functions)
335 /* The BINFO in which the search for the functions indicated by this baselink
336 began. This base is used to determine the accessibility of functions
337 selected by overload resolution. */
338 #define BASELINK_ACCESS_BINFO(NODE) \
339 (((struct tree_baselink*) BASELINK_CHECK (NODE))->access_binfo)
340 /* For a type-conversion operator, the BASELINK_OPTYPE indicates the type
341 to which the conversion should occur. This value is important if
342 the BASELINK_FUNCTIONS include a template conversion operator --
343 the BASELINK_OPTYPE can be used to determine what type the user
344 requested. */
345 #define BASELINK_OPTYPE(NODE) \
346 (TREE_CHAIN (BASELINK_CHECK (NODE)))
347 /* Non-zero if this baselink was from a qualified lookup. */
348 #define BASELINK_QUALIFIED_P(NODE) \
349 TREE_LANG_FLAG_0 (BASELINK_CHECK (NODE))
351 struct tree_baselink GTY(())
353 struct tree_common common;
354 tree binfo;
355 tree functions;
356 tree access_binfo;
359 /* The different kinds of ids that we encounter. */
361 typedef enum cp_id_kind
363 /* Not an id at all. */
364 CP_ID_KIND_NONE,
365 /* An unqualified-id that is not a template-id. */
366 CP_ID_KIND_UNQUALIFIED,
367 /* An unqualified-id that is a dependent name. */
368 CP_ID_KIND_UNQUALIFIED_DEPENDENT,
369 /* An unqualified template-id. */
370 CP_ID_KIND_TEMPLATE_ID,
371 /* A qualified-id. */
372 CP_ID_KIND_QUALIFIED
373 } cp_id_kind;
375 /* Macros for access to language-specific slots in an identifier. */
377 #define IDENTIFIER_NAMESPACE_BINDINGS(NODE) \
378 (LANG_IDENTIFIER_CAST (NODE)->namespace_bindings)
379 #define IDENTIFIER_TEMPLATE(NODE) \
380 (LANG_IDENTIFIER_CAST (NODE)->class_template_info)
382 /* The IDENTIFIER_BINDING is the innermost cxx_binding for the
383 identifier. It's PREVIOUS is the next outermost binding. Each
384 VALUE field is a DECL for the associated declaration. Thus,
385 name lookup consists simply of pulling off the node at the front
386 of the list (modulo oddities for looking up the names of types,
387 and such.) You can use SCOPE field to determine the scope
388 that bound the name. */
389 #define IDENTIFIER_BINDING(NODE) \
390 (LANG_IDENTIFIER_CAST (NODE)->bindings)
392 /* TREE_TYPE only indicates on local and class scope the current
393 type. For namespace scope, the presence of a type in any namespace
394 is indicated with global_type_node, and the real type behind must
395 be found through lookup. */
396 #define IDENTIFIER_TYPE_VALUE(NODE) identifier_type_value (NODE)
397 #define REAL_IDENTIFIER_TYPE_VALUE(NODE) TREE_TYPE (NODE)
398 #define SET_IDENTIFIER_TYPE_VALUE(NODE,TYPE) (TREE_TYPE (NODE) = (TYPE))
399 #define IDENTIFIER_HAS_TYPE_VALUE(NODE) (IDENTIFIER_TYPE_VALUE (NODE) ? 1 : 0)
401 #define IDENTIFIER_LABEL_VALUE(NODE) \
402 (LANG_IDENTIFIER_CAST (NODE)->label_value)
403 #define SET_IDENTIFIER_LABEL_VALUE(NODE, VALUE) \
404 IDENTIFIER_LABEL_VALUE (NODE) = (VALUE)
406 /* Nonzero if this identifier is used as a virtual function name somewhere
407 (optimizes searches). */
408 #define IDENTIFIER_VIRTUAL_P(NODE) TREE_LANG_FLAG_1 (NODE)
410 /* Nonzero if this identifier is the prefix for a mangled C++ operator
411 name. */
412 #define IDENTIFIER_OPNAME_P(NODE) TREE_LANG_FLAG_2 (NODE)
414 /* Nonzero if this identifier is the name of a type-conversion
415 operator. */
416 #define IDENTIFIER_TYPENAME_P(NODE) \
417 TREE_LANG_FLAG_4 (NODE)
419 /* Nonzero if this identifier is the name of a constructor or
420 destructor. */
421 #define IDENTIFIER_CTOR_OR_DTOR_P(NODE) \
422 TREE_LANG_FLAG_3 (NODE)
424 /* True iff NAME is the DECL_ASSEMBLER_NAME for an entity with vague
425 linkage which the prelinker has assigned to this translation
426 unit. */
427 #define IDENTIFIER_REPO_CHOSEN(NAME) \
428 (TREE_LANG_FLAG_6 (NAME))
430 /* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */
431 #define C_TYPE_FIELDS_READONLY(TYPE) \
432 (LANG_TYPE_CLASS_CHECK (TYPE)->fields_readonly)
434 /* The tokens stored in the default argument. */
436 #define DEFARG_TOKENS(NODE) \
437 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->tokens)
438 #define DEFARG_INSTANTIATIONS(NODE) \
439 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->instantiations)
441 struct tree_default_arg GTY (())
443 struct tree_common common;
444 struct cp_token_cache *tokens;
445 VEC(tree,gc) *instantiations;
448 enum cp_tree_node_structure_enum {
449 TS_CP_GENERIC,
450 TS_CP_IDENTIFIER,
451 TS_CP_TPI,
452 TS_CP_TINST_LEVEL,
453 TS_CP_PTRMEM,
454 TS_CP_BINDING,
455 TS_CP_OVERLOAD,
456 TS_CP_BASELINK,
457 TS_CP_WRAPPER,
458 TS_CP_DEFAULT_ARG,
459 LAST_TS_CP_ENUM
462 /* The resulting tree type. */
463 union lang_tree_node GTY((desc ("cp_tree_node_structure (&%h)"),
464 chain_next ("(union lang_tree_node *)TREE_CHAIN (&%h.generic)")))
466 union tree_node GTY ((tag ("TS_CP_GENERIC"),
467 desc ("tree_node_structure (&%h)"))) generic;
468 struct template_parm_index_s GTY ((tag ("TS_CP_TPI"))) tpi;
469 struct tinst_level_s GTY ((tag ("TS_CP_TINST_LEVEL"))) tinst_level;
470 struct ptrmem_cst GTY ((tag ("TS_CP_PTRMEM"))) ptrmem;
471 struct tree_overload GTY ((tag ("TS_CP_OVERLOAD"))) overload;
472 struct tree_baselink GTY ((tag ("TS_CP_BASELINK"))) baselink;
473 struct tree_default_arg GTY ((tag ("TS_CP_DEFAULT_ARG"))) default_arg;
474 struct lang_identifier GTY ((tag ("TS_CP_IDENTIFIER"))) identifier;
478 enum cp_tree_index
480 CPTI_JAVA_BYTE_TYPE,
481 CPTI_JAVA_SHORT_TYPE,
482 CPTI_JAVA_INT_TYPE,
483 CPTI_JAVA_LONG_TYPE,
484 CPTI_JAVA_FLOAT_TYPE,
485 CPTI_JAVA_DOUBLE_TYPE,
486 CPTI_JAVA_CHAR_TYPE,
487 CPTI_JAVA_BOOLEAN_TYPE,
489 CPTI_WCHAR_DECL,
490 CPTI_VTABLE_ENTRY_TYPE,
491 CPTI_DELTA_TYPE,
492 CPTI_VTABLE_INDEX_TYPE,
493 CPTI_CLEANUP_TYPE,
494 CPTI_VTT_PARM_TYPE,
496 CPTI_CLASS_TYPE,
497 CPTI_UNKNOWN_TYPE,
498 CPTI_VTBL_TYPE,
499 CPTI_VTBL_PTR_TYPE,
500 CPTI_STD,
501 CPTI_ABI,
502 CPTI_CONST_TYPE_INFO_TYPE,
503 CPTI_TYPE_INFO_PTR_TYPE,
504 CPTI_ABORT_FNDECL,
505 CPTI_GLOBAL_DELETE_FNDECL,
506 CPTI_AGGR_TAG,
508 CPTI_CTOR_IDENTIFIER,
509 CPTI_COMPLETE_CTOR_IDENTIFIER,
510 CPTI_BASE_CTOR_IDENTIFIER,
511 CPTI_DTOR_IDENTIFIER,
512 CPTI_COMPLETE_DTOR_IDENTIFIER,
513 CPTI_BASE_DTOR_IDENTIFIER,
514 CPTI_DELETING_DTOR_IDENTIFIER,
515 CPTI_DELTA_IDENTIFIER,
516 CPTI_IN_CHARGE_IDENTIFIER,
517 CPTI_VTT_PARM_IDENTIFIER,
518 CPTI_NELTS_IDENTIFIER,
519 CPTI_THIS_IDENTIFIER,
520 CPTI_PFN_IDENTIFIER,
521 CPTI_VPTR_IDENTIFIER,
522 CPTI_STD_IDENTIFIER,
524 CPTI_LANG_NAME_C,
525 CPTI_LANG_NAME_CPLUSPLUS,
526 CPTI_LANG_NAME_JAVA,
528 CPTI_EMPTY_EXCEPT_SPEC,
529 CPTI_JCLASS,
530 CPTI_TERMINATE,
531 CPTI_CALL_UNEXPECTED,
532 CPTI_ATEXIT,
533 CPTI_DSO_HANDLE,
534 CPTI_DCAST,
536 CPTI_KEYED_CLASSES,
538 CPTI_MAX
541 extern GTY(()) tree cp_global_trees[CPTI_MAX];
543 #define java_byte_type_node cp_global_trees[CPTI_JAVA_BYTE_TYPE]
544 #define java_short_type_node cp_global_trees[CPTI_JAVA_SHORT_TYPE]
545 #define java_int_type_node cp_global_trees[CPTI_JAVA_INT_TYPE]
546 #define java_long_type_node cp_global_trees[CPTI_JAVA_LONG_TYPE]
547 #define java_float_type_node cp_global_trees[CPTI_JAVA_FLOAT_TYPE]
548 #define java_double_type_node cp_global_trees[CPTI_JAVA_DOUBLE_TYPE]
549 #define java_char_type_node cp_global_trees[CPTI_JAVA_CHAR_TYPE]
550 #define java_boolean_type_node cp_global_trees[CPTI_JAVA_BOOLEAN_TYPE]
552 #define wchar_decl_node cp_global_trees[CPTI_WCHAR_DECL]
553 #define vtable_entry_type cp_global_trees[CPTI_VTABLE_ENTRY_TYPE]
554 /* The type used to represent an offset by which to adjust the `this'
555 pointer in pointer-to-member types. */
556 #define delta_type_node cp_global_trees[CPTI_DELTA_TYPE]
557 /* The type used to represent an index into the vtable. */
558 #define vtable_index_type cp_global_trees[CPTI_VTABLE_INDEX_TYPE]
560 #define class_type_node cp_global_trees[CPTI_CLASS_TYPE]
561 #define unknown_type_node cp_global_trees[CPTI_UNKNOWN_TYPE]
562 #define vtbl_type_node cp_global_trees[CPTI_VTBL_TYPE]
563 #define vtbl_ptr_type_node cp_global_trees[CPTI_VTBL_PTR_TYPE]
564 #define std_node cp_global_trees[CPTI_STD]
565 #define abi_node cp_global_trees[CPTI_ABI]
566 #define const_type_info_type_node cp_global_trees[CPTI_CONST_TYPE_INFO_TYPE]
567 #define type_info_ptr_type cp_global_trees[CPTI_TYPE_INFO_PTR_TYPE]
568 #define abort_fndecl cp_global_trees[CPTI_ABORT_FNDECL]
569 #define global_delete_fndecl cp_global_trees[CPTI_GLOBAL_DELETE_FNDECL]
570 #define current_aggr cp_global_trees[CPTI_AGGR_TAG]
572 /* We cache these tree nodes so as to call get_identifier less
573 frequently. */
575 /* The name of a constructor that takes an in-charge parameter to
576 decide whether or not to construct virtual base classes. */
577 #define ctor_identifier cp_global_trees[CPTI_CTOR_IDENTIFIER]
578 /* The name of a constructor that constructs virtual base classes. */
579 #define complete_ctor_identifier cp_global_trees[CPTI_COMPLETE_CTOR_IDENTIFIER]
580 /* The name of a constructor that does not construct virtual base classes. */
581 #define base_ctor_identifier cp_global_trees[CPTI_BASE_CTOR_IDENTIFIER]
582 /* The name of a destructor that takes an in-charge parameter to
583 decide whether or not to destroy virtual base classes and whether
584 or not to delete the object. */
585 #define dtor_identifier cp_global_trees[CPTI_DTOR_IDENTIFIER]
586 /* The name of a destructor that destroys virtual base classes. */
587 #define complete_dtor_identifier cp_global_trees[CPTI_COMPLETE_DTOR_IDENTIFIER]
588 /* The name of a destructor that does not destroy virtual base
589 classes. */
590 #define base_dtor_identifier cp_global_trees[CPTI_BASE_DTOR_IDENTIFIER]
591 /* The name of a destructor that destroys virtual base classes, and
592 then deletes the entire object. */
593 #define deleting_dtor_identifier cp_global_trees[CPTI_DELETING_DTOR_IDENTIFIER]
594 #define delta_identifier cp_global_trees[CPTI_DELTA_IDENTIFIER]
595 #define in_charge_identifier cp_global_trees[CPTI_IN_CHARGE_IDENTIFIER]
596 /* The name of the parameter that contains a pointer to the VTT to use
597 for this subobject constructor or destructor. */
598 #define vtt_parm_identifier cp_global_trees[CPTI_VTT_PARM_IDENTIFIER]
599 #define nelts_identifier cp_global_trees[CPTI_NELTS_IDENTIFIER]
600 #define this_identifier cp_global_trees[CPTI_THIS_IDENTIFIER]
601 #define pfn_identifier cp_global_trees[CPTI_PFN_IDENTIFIER]
602 #define vptr_identifier cp_global_trees[CPTI_VPTR_IDENTIFIER]
603 /* The name of the std namespace. */
604 #define std_identifier cp_global_trees[CPTI_STD_IDENTIFIER]
605 #define lang_name_c cp_global_trees[CPTI_LANG_NAME_C]
606 #define lang_name_cplusplus cp_global_trees[CPTI_LANG_NAME_CPLUSPLUS]
607 #define lang_name_java cp_global_trees[CPTI_LANG_NAME_JAVA]
609 /* Exception specifier used for throw(). */
610 #define empty_except_spec cp_global_trees[CPTI_EMPTY_EXCEPT_SPEC]
612 /* If non-NULL, a POINTER_TYPE equivalent to (java::lang::Class*). */
613 #define jclass_node cp_global_trees[CPTI_JCLASS]
615 /* The declaration for `std::terminate'. */
616 #define terminate_node cp_global_trees[CPTI_TERMINATE]
618 /* The declaration for "__cxa_call_unexpected". */
619 #define call_unexpected_node cp_global_trees[CPTI_CALL_UNEXPECTED]
621 /* A pointer to `std::atexit'. */
622 #define atexit_node cp_global_trees[CPTI_ATEXIT]
624 /* A pointer to `__dso_handle'. */
625 #define dso_handle_node cp_global_trees[CPTI_DSO_HANDLE]
627 /* The declaration of the dynamic_cast runtime. */
628 #define dynamic_cast_node cp_global_trees[CPTI_DCAST]
630 /* The type of a destructor. */
631 #define cleanup_type cp_global_trees[CPTI_CLEANUP_TYPE]
633 /* The type of the vtt parameter passed to subobject constructors and
634 destructors. */
635 #define vtt_parm_type cp_global_trees[CPTI_VTT_PARM_TYPE]
637 /* A TREE_LIST of the dynamic classes whose vtables may have to be
638 emitted in this translation unit. */
640 #define keyed_classes cp_global_trees[CPTI_KEYED_CLASSES]
642 /* Node to indicate default access. This must be distinct from the
643 access nodes in tree.h. */
645 #define access_default_node null_node
647 /* Global state. */
649 struct saved_scope GTY(())
651 VEC(cxx_saved_binding,gc) *old_bindings;
652 tree old_namespace;
653 tree decl_ns_list;
654 tree class_name;
655 tree class_type;
656 tree access_specifier;
657 tree function_decl;
658 VEC(tree,gc) *lang_base;
659 tree lang_name;
660 tree template_parms;
661 struct cp_binding_level *x_previous_class_level;
662 tree x_saved_tree;
664 HOST_WIDE_INT x_processing_template_decl;
665 int x_processing_specialization;
666 bool x_processing_explicit_instantiation;
667 int need_pop_function_context;
668 bool skip_evaluation;
670 struct stmt_tree_s x_stmt_tree;
672 struct cp_binding_level *class_bindings;
673 struct cp_binding_level *bindings;
675 struct saved_scope *prev;
678 /* The current open namespace. */
680 #define current_namespace scope_chain->old_namespace
682 /* The stack for namespaces of current declarations. */
684 #define decl_namespace_list scope_chain->decl_ns_list
686 /* IDENTIFIER_NODE: name of current class */
688 #define current_class_name scope_chain->class_name
690 /* _TYPE: the type of the current class */
692 #define current_class_type scope_chain->class_type
694 /* When parsing a class definition, the access specifier most recently
695 given by the user, or, if no access specifier was given, the
696 default value appropriate for the kind of class (i.e., struct,
697 class, or union). */
699 #define current_access_specifier scope_chain->access_specifier
701 /* Pointer to the top of the language name stack. */
703 #define current_lang_base scope_chain->lang_base
704 #define current_lang_name scope_chain->lang_name
706 /* Parsing a function declarator leaves a list of parameter names
707 or a chain or parameter decls here. */
709 #define current_template_parms scope_chain->template_parms
711 #define processing_template_decl scope_chain->x_processing_template_decl
712 #define processing_specialization scope_chain->x_processing_specialization
713 #define processing_explicit_instantiation scope_chain->x_processing_explicit_instantiation
715 /* The cached class binding level, from the most recently exited
716 class, or NULL if none. */
718 #define previous_class_level scope_chain->x_previous_class_level
720 /* A list of private types mentioned, for deferred access checking. */
722 extern GTY(()) struct saved_scope *scope_chain;
724 /* Global state pertinent to the current function. */
726 struct language_function GTY(())
728 struct c_language_function base;
730 tree x_cdtor_label;
731 tree x_current_class_ptr;
732 tree x_current_class_ref;
733 tree x_eh_spec_block;
734 tree x_in_charge_parm;
735 tree x_vtt_parm;
736 tree x_return_value;
738 int returns_value;
739 int returns_null;
740 int returns_abnormally;
741 int in_function_try_handler;
742 int in_base_initializer;
744 /* True if this function can throw an exception. */
745 BOOL_BITFIELD can_throw : 1;
747 htab_t GTY((param_is(struct named_label_entry))) x_named_labels;
748 struct cp_binding_level *bindings;
749 VEC(tree,gc) *x_local_names;
752 /* The current C++-specific per-function global variables. */
754 #define cp_function_chain (cfun->language)
756 /* In a constructor destructor, the point at which all derived class
757 destroying/construction has been has been done. Ie. just before a
758 constructor returns, or before any base class destroying will be done
759 in a destructor. */
761 #define cdtor_label cp_function_chain->x_cdtor_label
763 /* When we're processing a member function, current_class_ptr is the
764 PARM_DECL for the `this' pointer. The current_class_ref is an
765 expression for `*this'. */
767 #define current_class_ptr \
768 (cfun ? cp_function_chain->x_current_class_ptr : NULL_TREE)
769 #define current_class_ref \
770 (cfun ? cp_function_chain->x_current_class_ref : NULL_TREE)
772 /* The EH_SPEC_BLOCK for the exception-specifiers for the current
773 function, if any. */
775 #define current_eh_spec_block cp_function_chain->x_eh_spec_block
777 /* The `__in_chrg' parameter for the current function. Only used for
778 constructors and destructors. */
780 #define current_in_charge_parm cp_function_chain->x_in_charge_parm
782 /* The `__vtt_parm' parameter for the current function. Only used for
783 constructors and destructors. */
785 #define current_vtt_parm cp_function_chain->x_vtt_parm
787 /* Set to 0 at beginning of a function definition, set to 1 if
788 a return statement that specifies a return value is seen. */
790 #define current_function_returns_value cp_function_chain->returns_value
792 /* Set to 0 at beginning of a function definition, set to 1 if
793 a return statement with no argument is seen. */
795 #define current_function_returns_null cp_function_chain->returns_null
797 /* Set to 0 at beginning of a function definition, set to 1 if
798 a call to a noreturn function is seen. */
800 #define current_function_returns_abnormally \
801 cp_function_chain->returns_abnormally
803 /* Nonzero if we are processing a base initializer. Zero elsewhere. */
804 #define in_base_initializer cp_function_chain->in_base_initializer
806 #define in_function_try_handler cp_function_chain->in_function_try_handler
808 /* Expression always returned from function, or error_mark_node
809 otherwise, for use by the automatic named return value optimization. */
811 #define current_function_return_value \
812 (cp_function_chain->x_return_value)
814 /* True if NAME is the IDENTIFIER_NODE for an overloaded "operator
815 new" or "operator delete". */
816 #define NEW_DELETE_OPNAME_P(NAME) \
817 ((NAME) == ansi_opname (NEW_EXPR) \
818 || (NAME) == ansi_opname (VEC_NEW_EXPR) \
819 || (NAME) == ansi_opname (DELETE_EXPR) \
820 || (NAME) == ansi_opname (VEC_DELETE_EXPR))
822 #define ansi_opname(CODE) \
823 (operator_name_info[(int) (CODE)].identifier)
824 #define ansi_assopname(CODE) \
825 (assignment_operator_name_info[(int) (CODE)].identifier)
827 /* True if NODE is an erroneous expression. */
829 #define error_operand_p(NODE) \
830 ((NODE) == error_mark_node \
831 || ((NODE) && TREE_TYPE ((NODE)) == error_mark_node))
833 /* C++ language-specific tree codes. */
834 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) SYM,
835 enum cplus_tree_code {
836 CP_DUMMY_TREE_CODE = LAST_C_TREE_CODE,
837 #include "cp-tree.def"
838 LAST_CPLUS_TREE_CODE
840 #undef DEFTREECODE
842 /* TRUE if a tree code represents a statement. */
843 extern bool statement_code_p[MAX_TREE_CODES];
845 #define STATEMENT_CODE_P(CODE) statement_code_p[(int) (CODE)]
847 enum languages { lang_c, lang_cplusplus, lang_java };
849 /* Macros to make error reporting functions' lives easier. */
850 #define TYPE_IDENTIFIER(NODE) (DECL_NAME (TYPE_NAME (NODE)))
851 #define TYPE_LINKAGE_IDENTIFIER(NODE) \
852 (TYPE_IDENTIFIER (TYPE_MAIN_VARIANT (NODE)))
853 #define TYPE_NAME_STRING(NODE) (IDENTIFIER_POINTER (TYPE_IDENTIFIER (NODE)))
854 #define TYPE_NAME_LENGTH(NODE) (IDENTIFIER_LENGTH (TYPE_IDENTIFIER (NODE)))
856 /* Nonzero if NODE has no name for linkage purposes. */
857 #define TYPE_ANONYMOUS_P(NODE) \
858 (TAGGED_TYPE_P (NODE) && ANON_AGGRNAME_P (TYPE_LINKAGE_IDENTIFIER (NODE)))
860 /* The _DECL for this _TYPE. */
861 #define TYPE_MAIN_DECL(NODE) (TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE)))
863 /* Nonzero if T is a class (or struct or union) type. Also nonzero
864 for template type parameters, typename types, and instantiated
865 template template parameters. Despite its name,
866 this macro has nothing to do with the definition of aggregate given
867 in the standard. Think of this macro as MAYBE_CLASS_TYPE_P. Keep
868 these checks in ascending code order. */
869 #define IS_AGGR_TYPE(T) \
870 (TREE_CODE (T) == TEMPLATE_TYPE_PARM \
871 || TREE_CODE (T) == TYPENAME_TYPE \
872 || TREE_CODE (T) == TYPEOF_TYPE \
873 || TREE_CODE (T) == BOUND_TEMPLATE_TEMPLATE_PARM \
874 || TYPE_LANG_FLAG_5 (T))
876 /* Set IS_AGGR_TYPE for T to VAL. T must be a class, struct, or
877 union type. */
878 #define SET_IS_AGGR_TYPE(T, VAL) \
879 (TYPE_LANG_FLAG_5 (T) = (VAL))
881 /* Nonzero if T is a class type. Zero for template type parameters,
882 typename types, and so forth. */
883 #define CLASS_TYPE_P(T) \
884 (IS_AGGR_TYPE_CODE (TREE_CODE (T)) && TYPE_LANG_FLAG_5 (T))
886 /* Keep these checks in ascending code order. */
887 #define IS_AGGR_TYPE_CODE(T) \
888 ((T) == RECORD_TYPE || (T) == UNION_TYPE)
889 #define TAGGED_TYPE_P(T) \
890 (CLASS_TYPE_P (T) || TREE_CODE (T) == ENUMERAL_TYPE)
891 #define IS_OVERLOAD_TYPE(T) TAGGED_TYPE_P (T)
893 /* True if this a "Java" type, defined in 'extern "Java"'. */
894 #define TYPE_FOR_JAVA(NODE) TYPE_LANG_FLAG_3 (NODE)
896 /* True if this type is dependent. This predicate is only valid if
897 TYPE_DEPENDENT_P_VALID is true. */
898 #define TYPE_DEPENDENT_P(NODE) TYPE_LANG_FLAG_0 (NODE)
900 /* True if dependent_type_p has been called for this type, with the
901 result that TYPE_DEPENDENT_P is valid. */
902 #define TYPE_DEPENDENT_P_VALID(NODE) TYPE_LANG_FLAG_6(NODE)
904 /* Nonzero if this type is const-qualified. */
905 #define CP_TYPE_CONST_P(NODE) \
906 ((cp_type_quals (NODE) & TYPE_QUAL_CONST) != 0)
908 /* Nonzero if this type is volatile-qualified. */
909 #define CP_TYPE_VOLATILE_P(NODE) \
910 ((cp_type_quals (NODE) & TYPE_QUAL_VOLATILE) != 0)
912 /* Nonzero if this type is restrict-qualified. */
913 #define CP_TYPE_RESTRICT_P(NODE) \
914 ((cp_type_quals (NODE) & TYPE_QUAL_RESTRICT) != 0)
916 /* Nonzero if this type is const-qualified, but not
917 volatile-qualified. Other qualifiers are ignored. This macro is
918 used to test whether or not it is OK to bind an rvalue to a
919 reference. */
920 #define CP_TYPE_CONST_NON_VOLATILE_P(NODE) \
921 ((cp_type_quals (NODE) & (TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE)) \
922 == TYPE_QUAL_CONST)
924 #define FUNCTION_ARG_CHAIN(NODE) \
925 TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (NODE)))
927 /* Given a FUNCTION_DECL, returns the first TREE_LIST out of TYPE_ARG_TYPES
928 which refers to a user-written parameter. */
929 #define FUNCTION_FIRST_USER_PARMTYPE(NODE) \
930 skip_artificial_parms_for ((NODE), TYPE_ARG_TYPES (TREE_TYPE (NODE)))
932 /* Similarly, but for DECL_ARGUMENTS. */
933 #define FUNCTION_FIRST_USER_PARM(NODE) \
934 skip_artificial_parms_for ((NODE), DECL_ARGUMENTS (NODE))
936 #define PROMOTES_TO_AGGR_TYPE(NODE, CODE) \
937 (((CODE) == TREE_CODE (NODE) \
938 && IS_AGGR_TYPE (TREE_TYPE (NODE))) \
939 || IS_AGGR_TYPE (NODE))
941 /* Nonzero iff TYPE is derived from PARENT. Ignores accessibility and
942 ambiguity issues. */
943 #define DERIVED_FROM_P(PARENT, TYPE) \
944 (lookup_base ((TYPE), (PARENT), ba_any, NULL) != NULL_TREE)
945 /* Nonzero iff TYPE is uniquely derived from PARENT. Ignores
946 accessibility. */
947 #define UNIQUELY_DERIVED_FROM_P(PARENT, TYPE) \
948 (lookup_base ((TYPE), (PARENT), ba_unique | ba_quiet, NULL) != NULL_TREE)
949 /* Nonzero iff TYPE is publicly & uniquely derived from PARENT. */
950 #define PUBLICLY_UNIQUELY_DERIVED_P(PARENT, TYPE) \
951 (lookup_base ((TYPE), (PARENT), ba_ignore_scope | ba_check | ba_quiet, \
952 NULL) != NULL_TREE)
954 /* Gives the visibility specification for a class type. */
955 #define CLASSTYPE_VISIBILITY(TYPE) \
956 DECL_VISIBILITY (TYPE_NAME (TYPE))
957 #define CLASSTYPE_VISIBILITY_SPECIFIED(TYPE) \
958 DECL_VISIBILITY_SPECIFIED (TYPE_NAME (TYPE))
960 typedef struct tree_pair_s GTY (())
962 tree purpose;
963 tree value;
964 } tree_pair_s;
965 typedef tree_pair_s *tree_pair_p;
966 DEF_VEC_O (tree_pair_s);
967 DEF_VEC_ALLOC_O (tree_pair_s,gc);
969 /* This is a few header flags for 'struct lang_type'. Actually,
970 all but the first are used only for lang_type_class; they
971 are put in this structure to save space. */
972 struct lang_type_header GTY(())
974 BOOL_BITFIELD is_lang_type_class : 1;
976 BOOL_BITFIELD has_type_conversion : 1;
977 BOOL_BITFIELD has_init_ref : 1;
978 BOOL_BITFIELD has_default_ctor : 1;
979 BOOL_BITFIELD const_needs_init : 1;
980 BOOL_BITFIELD ref_needs_init : 1;
981 BOOL_BITFIELD has_const_assign_ref : 1;
983 BOOL_BITFIELD spare : 1;
986 /* This structure provides additional information above and beyond
987 what is provide in the ordinary tree_type. In the past, we used it
988 for the types of class types, template parameters types, typename
989 types, and so forth. However, there can be many (tens to hundreds
990 of thousands) of template parameter types in a compilation, and
991 there's no need for this additional information in that case.
992 Therefore, we now use this data structure only for class types.
994 In the past, it was thought that there would be relatively few
995 class types. However, in the presence of heavy use of templates,
996 many (i.e., thousands) of classes can easily be generated.
997 Therefore, we should endeavor to keep the size of this structure to
998 a minimum. */
999 struct lang_type_class GTY(())
1001 struct lang_type_header h;
1003 unsigned char align;
1005 unsigned has_mutable : 1;
1006 unsigned com_interface : 1;
1007 unsigned non_pod_class : 1;
1008 unsigned nearly_empty_p : 1;
1009 unsigned user_align : 1;
1010 unsigned has_assign_ref : 1;
1011 unsigned has_new : 1;
1012 unsigned has_array_new : 1;
1014 unsigned gets_delete : 2;
1015 unsigned interface_only : 1;
1016 unsigned interface_unknown : 1;
1017 unsigned contains_empty_class_p : 1;
1018 unsigned anon_aggr : 1;
1019 unsigned non_zero_init : 1;
1020 unsigned empty_p : 1;
1022 unsigned vec_new_uses_cookie : 1;
1023 unsigned declared_class : 1;
1024 unsigned diamond_shaped : 1;
1025 unsigned repeated_base : 1;
1026 unsigned being_defined : 1;
1027 unsigned java_interface : 1;
1028 unsigned debug_requested : 1;
1029 unsigned fields_readonly : 1;
1031 unsigned use_template : 2;
1032 unsigned ptrmemfunc_flag : 1;
1033 unsigned was_anonymous : 1;
1034 unsigned lazy_default_ctor : 1;
1035 unsigned lazy_copy_ctor : 1;
1036 unsigned lazy_assignment_op : 1;
1037 unsigned lazy_destructor : 1;
1039 unsigned has_const_init_ref : 1;
1040 unsigned has_complex_init_ref : 1;
1041 unsigned has_complex_assign_ref : 1;
1042 unsigned non_aggregate : 1;
1044 /* When adding a flag here, consider whether or not it ought to
1045 apply to a template instance if it applies to the template. If
1046 so, make sure to copy it in instantiate_class_template! */
1048 /* There are some bits left to fill out a 32-bit word. Keep track
1049 of this by updating the size of this bitfield whenever you add or
1050 remove a flag. */
1051 unsigned dummy : 12;
1053 tree primary_base;
1054 VEC(tree_pair_s,gc) *vcall_indices;
1055 tree vtables;
1056 tree typeinfo_var;
1057 VEC(tree,gc) *vbases;
1058 binding_table nested_udts;
1059 tree as_base;
1060 VEC(tree,gc) *pure_virtuals;
1061 tree friend_classes;
1062 VEC(tree,gc) * GTY((reorder ("resort_type_method_vec"))) methods;
1063 tree key_method;
1064 tree decl_list;
1065 tree template_info;
1066 tree befriending_classes;
1067 /* In a RECORD_TYPE, information specific to Objective-C++, such
1068 as a list of adopted protocols or a pointer to a corresponding
1069 @interface. See objc/objc-act.h for details. */
1070 tree objc_info;
1073 struct lang_type_ptrmem GTY(())
1075 struct lang_type_header h;
1076 tree record;
1079 struct lang_type GTY(())
1081 union lang_type_u
1083 struct lang_type_header GTY((skip (""))) h;
1084 struct lang_type_class GTY((tag ("1"))) c;
1085 struct lang_type_ptrmem GTY((tag ("0"))) ptrmem;
1086 } GTY((desc ("%h.h.is_lang_type_class"))) u;
1089 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1091 #define LANG_TYPE_CLASS_CHECK(NODE) __extension__ \
1092 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1093 if (! lt->u.h.is_lang_type_class) \
1094 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1095 &lt->u.c; })
1097 #define LANG_TYPE_PTRMEM_CHECK(NODE) __extension__ \
1098 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1099 if (lt->u.h.is_lang_type_class) \
1100 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1101 &lt->u.ptrmem; })
1103 #else
1105 #define LANG_TYPE_CLASS_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.c)
1106 #define LANG_TYPE_PTRMEM_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.ptrmem)
1108 #endif /* ENABLE_TREE_CHECKING */
1110 /* Indicates whether or not (and how) a template was expanded for this class.
1111 0=no information yet/non-template class
1112 1=implicit template instantiation
1113 2=explicit template specialization
1114 3=explicit template instantiation */
1115 #define CLASSTYPE_USE_TEMPLATE(NODE) \
1116 (LANG_TYPE_CLASS_CHECK (NODE)->use_template)
1118 /* Fields used for storing information before the class is defined.
1119 After the class is defined, these fields hold other information. */
1121 /* VEC(tree) of friends which were defined inline in this class
1122 definition. */
1123 #define CLASSTYPE_INLINE_FRIENDS(NODE) CLASSTYPE_PURE_VIRTUALS (NODE)
1125 /* Nonzero for _CLASSTYPE means that operator delete is defined. */
1126 #define TYPE_GETS_DELETE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->gets_delete)
1127 #define TYPE_GETS_REG_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 1)
1129 /* Nonzero if `new NODE[x]' should cause the allocation of extra
1130 storage to indicate how many array elements are in use. */
1131 #define TYPE_VEC_NEW_USES_COOKIE(NODE) \
1132 (CLASS_TYPE_P (NODE) \
1133 && LANG_TYPE_CLASS_CHECK (NODE)->vec_new_uses_cookie)
1135 /* Nonzero means that this _CLASSTYPE node defines ways of converting
1136 itself to other types. */
1137 #define TYPE_HAS_CONVERSION(NODE) \
1138 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_type_conversion)
1140 /* Nonzero means that NODE (a class type) has a default constructor --
1141 but that it has not yet been declared. */
1142 #define CLASSTYPE_LAZY_DEFAULT_CTOR(NODE) \
1143 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_default_ctor)
1145 /* Nonzero means that NODE (a class type) has a copy constructor --
1146 but that it has not yet been declared. */
1147 #define CLASSTYPE_LAZY_COPY_CTOR(NODE) \
1148 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_ctor)
1150 /* Nonzero means that NODE (a class type) has an assignment operator
1151 -- but that it has not yet been declared. */
1152 #define CLASSTYPE_LAZY_ASSIGNMENT_OP(NODE) \
1153 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_assignment_op)
1155 /* Nonzero means that NODE (a class type) has a destructor -- but that
1156 it has not yet been declared. */
1157 #define CLASSTYPE_LAZY_DESTRUCTOR(NODE) \
1158 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_destructor)
1160 /* Nonzero means that this _CLASSTYPE node overloads operator=(X&). */
1161 #define TYPE_HAS_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_assign_ref)
1163 /* True iff the class type NODE has an "operator =" whose parameter
1164 has a parameter of type "const X&". */
1165 #define TYPE_HAS_CONST_ASSIGN_REF(NODE) \
1166 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_const_assign_ref)
1168 /* Nonzero means that this _CLASSTYPE node has an X(X&) constructor. */
1169 #define TYPE_HAS_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->h.has_init_ref)
1170 #define TYPE_HAS_CONST_INIT_REF(NODE) \
1171 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_init_ref)
1173 /* Nonzero if this class defines an overloaded operator new. (An
1174 operator new [] doesn't count.) */
1175 #define TYPE_HAS_NEW_OPERATOR(NODE) \
1176 (LANG_TYPE_CLASS_CHECK (NODE)->has_new)
1178 /* Nonzero if this class defines an overloaded operator new[]. */
1179 #define TYPE_HAS_ARRAY_NEW_OPERATOR(NODE) \
1180 (LANG_TYPE_CLASS_CHECK (NODE)->has_array_new)
1182 /* Nonzero means that this type is being defined. I.e., the left brace
1183 starting the definition of this type has been seen. */
1184 #define TYPE_BEING_DEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->being_defined)
1186 /* Mark bits for repeated base checks. */
1187 #define TYPE_MARKED_P(NODE) TREE_LANG_FLAG_6 (TYPE_CHECK (NODE))
1189 /* Nonzero if the class NODE has multiple paths to the same (virtual)
1190 base object. */
1191 #define CLASSTYPE_DIAMOND_SHAPED_P(NODE) \
1192 (LANG_TYPE_CLASS_CHECK(NODE)->diamond_shaped)
1194 /* Nonzero if the class NODE has multiple instances of the same base
1195 type. */
1196 #define CLASSTYPE_REPEATED_BASE_P(NODE) \
1197 (LANG_TYPE_CLASS_CHECK(NODE)->repeated_base)
1199 /* The member function with which the vtable will be emitted:
1200 the first noninline non-pure-virtual member function. NULL_TREE
1201 if there is no key function or if this is a class template */
1202 #define CLASSTYPE_KEY_METHOD(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->key_method)
1204 /* Vector member functions defined in this class. Each element is
1205 either a FUNCTION_DECL, a TEMPLATE_DECL, or an OVERLOAD. All
1206 functions with the same name end up in the same slot. The first
1207 two elements are for constructors, and destructors, respectively.
1208 All template conversion operators to innermost template dependent
1209 types are overloaded on the next slot, if they exist. Note, the
1210 names for these functions will not all be the same. The
1211 non-template conversion operators & templated conversions to
1212 non-innermost template types are next, followed by ordinary member
1213 functions. There may be empty entries at the end of the vector.
1214 The conversion operators are unsorted. The ordinary member
1215 functions are sorted, once the class is complete. */
1216 #define CLASSTYPE_METHOD_VEC(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->methods)
1218 /* For class templates, this is a TREE_LIST of all member data,
1219 functions, types, and friends in the order of declaration.
1220 The TREE_PURPOSE of each TREE_LIST is NULL_TREE for a friend,
1221 and the RECORD_TYPE for the class template otherwise. */
1222 #define CLASSTYPE_DECL_LIST(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->decl_list)
1224 /* The slot in the CLASSTYPE_METHOD_VEC where constructors go. */
1225 #define CLASSTYPE_CONSTRUCTOR_SLOT 0
1227 /* The slot in the CLASSTYPE_METHOD_VEC where destructors go. */
1228 #define CLASSTYPE_DESTRUCTOR_SLOT 1
1230 /* The first slot in the CLASSTYPE_METHOD_VEC where conversion
1231 operators can appear. */
1232 #define CLASSTYPE_FIRST_CONVERSION_SLOT 2
1234 /* A FUNCTION_DECL or OVERLOAD for the constructors for NODE. These
1235 are the constructors that take an in-charge parameter. */
1236 #define CLASSTYPE_CONSTRUCTORS(NODE) \
1237 (VEC_index (tree, CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_CONSTRUCTOR_SLOT))
1239 /* A FUNCTION_DECL for the destructor for NODE. These are the
1240 destructors that take an in-charge parameter. If
1241 CLASSTYPE_LAZY_DESTRUCTOR is true, then this entry will be NULL
1242 until the destructor is created with lazily_declare_fn. */
1243 #define CLASSTYPE_DESTRUCTORS(NODE) \
1244 (CLASSTYPE_METHOD_VEC (NODE) \
1245 ? VEC_index (tree, CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_DESTRUCTOR_SLOT) \
1246 : NULL_TREE)
1248 /* A dictionary of the nested user-defined-types (class-types, or enums)
1249 found within this class. This table includes nested member class
1250 templates. */
1251 #define CLASSTYPE_NESTED_UTDS(NODE) \
1252 (LANG_TYPE_CLASS_CHECK (NODE)->nested_udts)
1254 /* Nonzero if NODE has a primary base class, i.e., a base class with
1255 which it shares the virtual function table pointer. */
1256 #define CLASSTYPE_HAS_PRIMARY_BASE_P(NODE) \
1257 (CLASSTYPE_PRIMARY_BINFO (NODE) != NULL_TREE)
1259 /* If non-NULL, this is the binfo for the primary base class, i.e.,
1260 the base class which contains the virtual function table pointer
1261 for this class. */
1262 #define CLASSTYPE_PRIMARY_BINFO(NODE) \
1263 (LANG_TYPE_CLASS_CHECK (NODE)->primary_base)
1265 /* A vector of BINFOs for the direct and indirect virtual base classes
1266 that this type uses in a post-order depth-first left-to-right
1267 order. (In other words, these bases appear in the order that they
1268 should be initialized.) */
1269 #define CLASSTYPE_VBASECLASSES(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->vbases)
1271 /* The type corresponding to NODE when NODE is used as a base class,
1272 i.e., NODE without virtual base classes. */
1274 #define CLASSTYPE_AS_BASE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->as_base)
1276 /* True iff NODE is the CLASSTYPE_AS_BASE version of some type. */
1278 #define IS_FAKE_BASE_TYPE(NODE) \
1279 (TREE_CODE (NODE) == RECORD_TYPE \
1280 && TYPE_CONTEXT (NODE) && CLASS_TYPE_P (TYPE_CONTEXT (NODE)) \
1281 && CLASSTYPE_AS_BASE (TYPE_CONTEXT (NODE)) == (NODE))
1283 /* These are the size and alignment of the type without its virtual
1284 base classes, for when we use this type as a base itself. */
1285 #define CLASSTYPE_SIZE(NODE) TYPE_SIZE (CLASSTYPE_AS_BASE (NODE))
1286 #define CLASSTYPE_SIZE_UNIT(NODE) TYPE_SIZE_UNIT (CLASSTYPE_AS_BASE (NODE))
1287 #define CLASSTYPE_ALIGN(NODE) TYPE_ALIGN (CLASSTYPE_AS_BASE (NODE))
1288 #define CLASSTYPE_USER_ALIGN(NODE) TYPE_USER_ALIGN (CLASSTYPE_AS_BASE (NODE))
1290 /* The alignment of NODE, without its virtual bases, in bytes. */
1291 #define CLASSTYPE_ALIGN_UNIT(NODE) \
1292 (CLASSTYPE_ALIGN (NODE) / BITS_PER_UNIT)
1294 /* True if this a Java interface type, declared with
1295 '__attribute__ ((java_interface))'. */
1296 #define TYPE_JAVA_INTERFACE(NODE) \
1297 (LANG_TYPE_CLASS_CHECK (NODE)->java_interface)
1299 /* A VEC(tree) of virtual functions which cannot be inherited by
1300 derived classes. When deriving from this type, the derived
1301 class must provide its own definition for each of these functions. */
1302 #define CLASSTYPE_PURE_VIRTUALS(NODE) \
1303 (LANG_TYPE_CLASS_CHECK (NODE)->pure_virtuals)
1305 /* Nonzero means that this type has an X() constructor. */
1306 #define TYPE_HAS_DEFAULT_CONSTRUCTOR(NODE) \
1307 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_default_ctor)
1309 /* Nonzero means that this type contains a mutable member. */
1310 #define CLASSTYPE_HAS_MUTABLE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_mutable)
1311 #define TYPE_HAS_MUTABLE_P(NODE) (cp_has_mutable_p (NODE))
1313 /* Nonzero means that this class type is a non-POD class. */
1314 #define CLASSTYPE_NON_POD_P(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->non_pod_class)
1316 /* Nonzero means that this class contains pod types whose default
1317 initialization is not a zero initialization (namely, pointers to
1318 data members). */
1319 #define CLASSTYPE_NON_ZERO_INIT_P(NODE) \
1320 (LANG_TYPE_CLASS_CHECK (NODE)->non_zero_init)
1322 /* Nonzero if this class is "empty" in the sense of the C++ ABI. */
1323 #define CLASSTYPE_EMPTY_P(NODE) \
1324 (LANG_TYPE_CLASS_CHECK (NODE)->empty_p)
1326 /* Nonzero if this class is "nearly empty", i.e., contains only a
1327 virtual function table pointer. */
1328 #define CLASSTYPE_NEARLY_EMPTY_P(NODE) \
1329 (LANG_TYPE_CLASS_CHECK (NODE)->nearly_empty_p)
1331 /* Nonzero if this class contains an empty subobject. */
1332 #define CLASSTYPE_CONTAINS_EMPTY_CLASS_P(NODE) \
1333 (LANG_TYPE_CLASS_CHECK (NODE)->contains_empty_class_p)
1335 /* A list of class types of which this type is a friend. The
1336 TREE_VALUE is normally a TYPE, but will be a TEMPLATE_DECL in the
1337 case of a template friend. */
1338 #define CLASSTYPE_FRIEND_CLASSES(NODE) \
1339 (LANG_TYPE_CLASS_CHECK (NODE)->friend_classes)
1341 /* A list of the classes which grant friendship to this class. */
1342 #define CLASSTYPE_BEFRIENDING_CLASSES(NODE) \
1343 (LANG_TYPE_CLASS_CHECK (NODE)->befriending_classes)
1345 /* Say whether this node was declared as a "class" or a "struct". */
1346 #define CLASSTYPE_DECLARED_CLASS(NODE) \
1347 (LANG_TYPE_CLASS_CHECK (NODE)->declared_class)
1349 /* Nonzero if this class has const members
1350 which have no specified initialization. */
1351 #define CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE) \
1352 (TYPE_LANG_SPECIFIC (NODE) \
1353 ? LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init : 0)
1354 #define SET_CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE, VALUE) \
1355 (LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init = (VALUE))
1357 /* Nonzero if this class has ref members
1358 which have no specified initialization. */
1359 #define CLASSTYPE_REF_FIELDS_NEED_INIT(NODE) \
1360 (TYPE_LANG_SPECIFIC (NODE) \
1361 ? LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init : 0)
1362 #define SET_CLASSTYPE_REF_FIELDS_NEED_INIT(NODE, VALUE) \
1363 (LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init = (VALUE))
1365 /* Nonzero if this class is included from a header file which employs
1366 `#pragma interface', and it is not included in its implementation file. */
1367 #define CLASSTYPE_INTERFACE_ONLY(NODE) \
1368 (LANG_TYPE_CLASS_CHECK (NODE)->interface_only)
1370 /* True if we have already determined whether or not vtables, VTTs,
1371 typeinfo, and other similar per-class data should be emitted in
1372 this translation unit. This flag does not indicate whether or not
1373 these items should be emitted; it only indicates that we know one
1374 way or the other. */
1375 #define CLASSTYPE_INTERFACE_KNOWN(NODE) \
1376 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown == 0)
1377 /* The opposite of CLASSTYPE_INTERFACE_KNOWN. */
1378 #define CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1379 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown)
1381 #define SET_CLASSTYPE_INTERFACE_UNKNOWN_X(NODE,X) \
1382 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = !!(X))
1383 #define SET_CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1384 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 1)
1385 #define SET_CLASSTYPE_INTERFACE_KNOWN(NODE) \
1386 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 0)
1388 /* Nonzero if a _DECL node requires us to output debug info for this class. */
1389 #define CLASSTYPE_DEBUG_REQUESTED(NODE) \
1390 (LANG_TYPE_CLASS_CHECK (NODE)->debug_requested)
1392 /* Additional macros for inheritance information. */
1394 /* Nonzero means that this class is on a path leading to a new vtable. */
1395 #define BINFO_VTABLE_PATH_MARKED(NODE) BINFO_FLAG_1 (NODE)
1397 /* Nonzero means B (a BINFO) has its own vtable. Any copies will not
1398 have this flag set. */
1399 #define BINFO_NEW_VTABLE_MARKED(B) (BINFO_FLAG_2 (B))
1401 /* Compare a BINFO_TYPE with another type for equality. For a binfo,
1402 this is functionally equivalent to using same_type_p, but
1403 measurably faster. At least one of the arguments must be a
1404 BINFO_TYPE. The other can be a BINFO_TYPE or a regular type. If
1405 BINFO_TYPE(T) ever stops being the main variant of the class the
1406 binfo is for, this macro must change. */
1407 #define SAME_BINFO_TYPE_P(A, B) ((A) == (B))
1409 /* Any subobject that needs a new vtable must have a vptr and must not
1410 be a non-virtual primary base (since it would then use the vtable from a
1411 derived class and never become non-primary.) */
1412 #define SET_BINFO_NEW_VTABLE_MARKED(B) \
1413 (BINFO_NEW_VTABLE_MARKED (B) = 1, \
1414 gcc_assert (!BINFO_PRIMARY_P (B) || BINFO_VIRTUAL_P (B)), \
1415 gcc_assert (TYPE_VFIELD (BINFO_TYPE (B))))
1417 /* Nonzero if this binfo is for a dependent base - one that should not
1418 be searched. */
1419 #define BINFO_DEPENDENT_BASE_P(NODE) BINFO_FLAG_3 (NODE)
1421 /* Nonzero if this binfo has lost its primary base binfo (because that
1422 is a nearly-empty virtual base that has been taken by some other
1423 base in the complete hierarchy. */
1424 #define BINFO_LOST_PRIMARY_P(NODE) BINFO_FLAG_4 (NODE)
1426 /* Nonzero if this BINFO is a primary base class. */
1427 #define BINFO_PRIMARY_P(NODE) BINFO_FLAG_5(NODE)
1429 /* Used by various search routines. */
1430 #define IDENTIFIER_MARKED(NODE) TREE_LANG_FLAG_0 (NODE)
1432 /* A VEC(tree_pair_s) of the vcall indices associated with the class
1433 NODE. The PURPOSE of each element is a FUNCTION_DECL for a virtual
1434 function. The VALUE is the index into the virtual table where the
1435 vcall offset for that function is stored, when NODE is a virtual
1436 base. */
1437 #define CLASSTYPE_VCALL_INDICES(NODE) \
1438 (LANG_TYPE_CLASS_CHECK (NODE)->vcall_indices)
1440 /* The various vtables for the class NODE. The primary vtable will be
1441 first, followed by the construction vtables and VTT, if any. */
1442 #define CLASSTYPE_VTABLES(NODE) \
1443 (LANG_TYPE_CLASS_CHECK (NODE)->vtables)
1445 /* The std::type_info variable representing this class, or NULL if no
1446 such variable has been created. This field is only set for the
1447 TYPE_MAIN_VARIANT of the class. */
1448 #define CLASSTYPE_TYPEINFO_VAR(NODE) \
1449 (LANG_TYPE_CLASS_CHECK (NODE)->typeinfo_var)
1451 /* Accessor macros for the BINFO_VIRTUALS list. */
1453 /* The number of bytes by which to adjust the `this' pointer when
1454 calling this virtual function. Subtract this value from the this
1455 pointer. Always non-NULL, might be constant zero though. */
1456 #define BV_DELTA(NODE) (TREE_PURPOSE (NODE))
1458 /* If non-NULL, the vtable index at which to find the vcall offset
1459 when calling this virtual function. Add the value at that vtable
1460 index to the this pointer. */
1461 #define BV_VCALL_INDEX(NODE) (TREE_TYPE (NODE))
1463 /* The function to call. */
1464 #define BV_FN(NODE) (TREE_VALUE (NODE))
1467 /* For FUNCTION_TYPE or METHOD_TYPE, a list of the exceptions that
1468 this type can raise. Each TREE_VALUE is a _TYPE. The TREE_VALUE
1469 will be NULL_TREE to indicate a throw specification of `()', or
1470 no exceptions allowed. */
1471 #define TYPE_RAISES_EXCEPTIONS(NODE) TYPE_LANG_SLOT_1 (NODE)
1473 /* For FUNCTION_TYPE or METHOD_TYPE, return 1 iff it is declared `throw()'. */
1474 #define TYPE_NOTHROW_P(NODE) \
1475 (TYPE_RAISES_EXCEPTIONS (NODE) \
1476 && TREE_VALUE (TYPE_RAISES_EXCEPTIONS (NODE)) == NULL_TREE)
1478 /* The binding level associated with the namespace. */
1479 #define NAMESPACE_LEVEL(NODE) \
1480 (DECL_LANG_SPECIFIC (NODE)->decl_flags.u.level)
1483 /* If a DECL has DECL_LANG_SPECIFIC, it is either a lang_decl_flags or
1484 a lang_decl (which has lang_decl_flags as its initial prefix).
1485 This macro is nonzero for tree nodes whose DECL_LANG_SPECIFIC is
1486 the full lang_decl, and not just lang_decl_flags. Keep these
1487 checks in ascending code order. */
1488 #define CAN_HAVE_FULL_LANG_DECL_P(NODE) \
1489 (!(TREE_CODE (NODE) == FIELD_DECL \
1490 || TREE_CODE (NODE) == VAR_DECL \
1491 || TREE_CODE (NODE) == CONST_DECL \
1492 || TREE_CODE (NODE) == USING_DECL))
1494 struct lang_decl_flags GTY(())
1496 ENUM_BITFIELD(languages) language : 4;
1497 unsigned global_ctor_p : 1;
1498 unsigned global_dtor_p : 1;
1499 unsigned anticipated_p : 1;
1500 unsigned template_conv_p : 1;
1502 unsigned operator_attr : 1;
1503 unsigned constructor_attr : 1;
1504 unsigned destructor_attr : 1;
1505 unsigned friend_attr : 1;
1506 unsigned static_function : 1;
1507 unsigned pure_virtual : 1;
1508 unsigned has_in_charge_parm_p : 1;
1509 unsigned has_vtt_parm_p : 1;
1511 unsigned deferred : 1;
1512 unsigned use_template : 2;
1513 unsigned nonconverting : 1;
1514 unsigned not_really_extern : 1;
1515 unsigned initialized_in_class : 1;
1516 unsigned assignment_operator_p : 1;
1517 unsigned u1sel : 1;
1519 unsigned u2sel : 1;
1520 unsigned can_be_full : 1;
1521 unsigned thunk_p : 1;
1522 unsigned this_thunk_p : 1;
1523 unsigned repo_available_p : 1;
1524 unsigned hidden_friend_p : 1;
1525 unsigned threadprivate_p : 1;
1526 /* One unused bit. */
1528 union lang_decl_u {
1529 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
1530 THUNK_ALIAS.
1531 In a FUNCTION_DECL for which DECL_THUNK_P does not hold,
1532 VAR_DECL, TYPE_DECL, or TEMPLATE_DECL, this is
1533 DECL_TEMPLATE_INFO. */
1534 tree GTY ((tag ("0"))) template_info;
1536 /* In a NAMESPACE_DECL, this is NAMESPACE_LEVEL. */
1537 struct cp_binding_level * GTY ((tag ("1"))) level;
1538 } GTY ((desc ("%1.u1sel"))) u;
1540 union lang_decl_u2 {
1541 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
1542 THUNK_VIRTUAL_OFFSET.
1543 Otherwise this is DECL_ACCESS. */
1544 tree GTY ((tag ("0"))) access;
1546 /* For VAR_DECL in function, this is DECL_DISCRIMINATOR. */
1547 int GTY ((tag ("1"))) discriminator;
1548 } GTY ((desc ("%1.u2sel"))) u2;
1551 /* sorted_fields is sorted based on a pointer, so we need to be able
1552 to resort it if pointers get rearranged. */
1554 struct lang_decl GTY(())
1556 struct lang_decl_flags decl_flags;
1558 union lang_decl_u4
1560 struct full_lang_decl
1562 /* In an overloaded operator, this is the value of
1563 DECL_OVERLOADED_OPERATOR_P. */
1564 ENUM_BITFIELD (tree_code) operator_code : 8;
1566 unsigned u3sel : 1;
1567 unsigned pending_inline_p : 1;
1568 unsigned spare : 22;
1570 /* For a non-thunk function decl, this is a tree list of
1571 friendly classes. For a thunk function decl, it is the
1572 thunked to function decl. */
1573 tree befriending_classes;
1575 /* For a non-virtual FUNCTION_DECL, this is
1576 DECL_FRIEND_CONTEXT. For a virtual FUNCTION_DECL for which
1577 DECL_THIS_THUNK_P does not hold, this is DECL_THUNKS. Both
1578 this pointer and result pointer adjusting thunks are
1579 chained here. This pointer thunks to return pointer thunks
1580 will be chained on the return pointer thunk. */
1581 tree context;
1583 union lang_decl_u5
1585 /* In a non-thunk FUNCTION_DECL or TEMPLATE_DECL, this is
1586 DECL_CLONED_FUNCTION. */
1587 tree GTY ((tag ("0"))) cloned_function;
1589 /* In a FUNCTION_DECL for which THUNK_P holds this is the
1590 THUNK_FIXED_OFFSET. */
1591 HOST_WIDE_INT GTY ((tag ("1"))) fixed_offset;
1592 } GTY ((desc ("%0.decl_flags.thunk_p"))) u5;
1594 union lang_decl_u3
1596 struct sorted_fields_type * GTY ((tag ("0"), reorder ("resort_sorted_fields")))
1597 sorted_fields;
1598 struct cp_token_cache * GTY ((tag ("2"))) pending_inline_info;
1599 struct language_function * GTY ((tag ("1")))
1600 saved_language_function;
1601 } GTY ((desc ("%1.u3sel + %1.pending_inline_p"))) u;
1602 } GTY ((tag ("1"))) f;
1603 } GTY ((desc ("%1.decl_flags.can_be_full"))) u;
1606 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1608 #define LANG_DECL_U2_CHECK(NODE, TF) __extension__ \
1609 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
1610 if (lt->decl_flags.u2sel != TF) \
1611 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1612 &lt->decl_flags.u2; })
1614 #else
1616 #define LANG_DECL_U2_CHECK(NODE, TF) \
1617 (&DECL_LANG_SPECIFIC (NODE)->decl_flags.u2)
1619 #endif /* ENABLE_TREE_CHECKING */
1621 /* For a FUNCTION_DECL or a VAR_DECL, the language linkage for the
1622 declaration. Some entities (like a member function in a local
1623 class, or a local variable) do not have linkage at all, and this
1624 macro should not be used in those cases.
1626 Implementation note: A FUNCTION_DECL without DECL_LANG_SPECIFIC was
1627 created by language-independent code, and has C linkage. Most
1628 VAR_DECLs have C++ linkage, and do not have DECL_LANG_SPECIFIC, but
1629 we do create DECL_LANG_SPECIFIC for variables with non-C++ linkage. */
1630 #define DECL_LANGUAGE(NODE) \
1631 (DECL_LANG_SPECIFIC (NODE) \
1632 ? DECL_LANG_SPECIFIC (NODE)->decl_flags.language \
1633 : (TREE_CODE (NODE) == FUNCTION_DECL \
1634 ? lang_c : lang_cplusplus))
1636 /* Set the language linkage for NODE to LANGUAGE. */
1637 #define SET_DECL_LANGUAGE(NODE, LANGUAGE) \
1638 (DECL_LANG_SPECIFIC (NODE)->decl_flags.language = (LANGUAGE))
1640 /* For FUNCTION_DECLs: nonzero means that this function is a constructor. */
1641 #define DECL_CONSTRUCTOR_P(NODE) \
1642 (DECL_LANG_SPECIFIC (NODE)->decl_flags.constructor_attr)
1644 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a complete
1645 object. */
1646 #define DECL_COMPLETE_CONSTRUCTOR_P(NODE) \
1647 (DECL_CONSTRUCTOR_P (NODE) \
1648 && DECL_NAME (NODE) == complete_ctor_identifier)
1650 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a base
1651 object. */
1652 #define DECL_BASE_CONSTRUCTOR_P(NODE) \
1653 (DECL_CONSTRUCTOR_P (NODE) \
1654 && DECL_NAME (NODE) == base_ctor_identifier)
1656 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor, but not either the
1657 specialized in-charge constructor or the specialized not-in-charge
1658 constructor. */
1659 #define DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P(NODE) \
1660 (DECL_CONSTRUCTOR_P (NODE) && !DECL_CLONED_FUNCTION_P (NODE))
1662 /* Nonzero if NODE (a FUNCTION_DECL) is a copy constructor. */
1663 #define DECL_COPY_CONSTRUCTOR_P(NODE) \
1664 (DECL_CONSTRUCTOR_P (NODE) && copy_fn_p (NODE) > 0)
1666 /* Nonzero if NODE is a destructor. */
1667 #define DECL_DESTRUCTOR_P(NODE) \
1668 (DECL_LANG_SPECIFIC (NODE)->decl_flags.destructor_attr)
1670 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor, but not the
1671 specialized in-charge constructor, in-charge deleting constructor,
1672 or the base destructor. */
1673 #define DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P(NODE) \
1674 (DECL_DESTRUCTOR_P (NODE) && !DECL_CLONED_FUNCTION_P (NODE))
1676 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
1677 object. */
1678 #define DECL_COMPLETE_DESTRUCTOR_P(NODE) \
1679 (DECL_DESTRUCTOR_P (NODE) \
1680 && DECL_NAME (NODE) == complete_dtor_identifier)
1682 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a base
1683 object. */
1684 #define DECL_BASE_DESTRUCTOR_P(NODE) \
1685 (DECL_DESTRUCTOR_P (NODE) \
1686 && DECL_NAME (NODE) == base_dtor_identifier)
1688 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
1689 object that deletes the object after it has been destroyed. */
1690 #define DECL_DELETING_DESTRUCTOR_P(NODE) \
1691 (DECL_DESTRUCTOR_P (NODE) \
1692 && DECL_NAME (NODE) == deleting_dtor_identifier)
1694 /* Nonzero if NODE (a FUNCTION_DECL) is a cloned constructor or
1695 destructor. */
1696 #define DECL_CLONED_FUNCTION_P(NODE) \
1697 ((TREE_CODE (NODE) == FUNCTION_DECL \
1698 || TREE_CODE (NODE) == TEMPLATE_DECL) \
1699 && DECL_LANG_SPECIFIC (NODE) \
1700 && !DECL_LANG_SPECIFIC (NODE)->decl_flags.thunk_p \
1701 && DECL_CLONED_FUNCTION (NODE) != NULL_TREE)
1703 /* If DECL_CLONED_FUNCTION_P holds, this is the function that was
1704 cloned. */
1705 #define DECL_CLONED_FUNCTION(NODE) \
1706 (DECL_LANG_SPECIFIC (NON_THUNK_FUNCTION_CHECK(NODE))->u.f.u5.cloned_function)
1708 /* Perform an action for each clone of FN, if FN is a function with
1709 clones. This macro should be used like:
1711 FOR_EACH_CLONE (clone, fn)
1712 { ... }
1715 #define FOR_EACH_CLONE(CLONE, FN) \
1716 if (TREE_CODE (FN) == FUNCTION_DECL \
1717 && (DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (FN) \
1718 || DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (FN))) \
1719 for (CLONE = TREE_CHAIN (FN); \
1720 CLONE && DECL_CLONED_FUNCTION_P (CLONE); \
1721 CLONE = TREE_CHAIN (CLONE))
1723 /* Nonzero if NODE has DECL_DISCRIMINATOR and not DECL_ACCESS. */
1724 #define DECL_DISCRIMINATOR_P(NODE) \
1725 (TREE_CODE (NODE) == VAR_DECL \
1726 && DECL_FUNCTION_SCOPE_P (NODE))
1728 /* Discriminator for name mangling. */
1729 #define DECL_DISCRIMINATOR(NODE) (LANG_DECL_U2_CHECK (NODE, 1)->discriminator)
1731 /* Nonzero if the VTT parm has been added to NODE. */
1732 #define DECL_HAS_VTT_PARM_P(NODE) \
1733 (DECL_LANG_SPECIFIC (NODE)->decl_flags.has_vtt_parm_p)
1735 /* Nonzero if NODE is a FUNCTION_DECL for which a VTT parameter is
1736 required. */
1737 #define DECL_NEEDS_VTT_PARM_P(NODE) \
1738 (CLASSTYPE_VBASECLASSES (DECL_CONTEXT (NODE)) \
1739 && (DECL_BASE_CONSTRUCTOR_P (NODE) \
1740 || DECL_BASE_DESTRUCTOR_P (NODE)))
1742 /* Nonzero if NODE is a user-defined conversion operator. */
1743 #define DECL_CONV_FN_P(NODE) \
1744 (DECL_NAME (NODE) && IDENTIFIER_TYPENAME_P (DECL_NAME (NODE)))
1746 /* If FN is a conversion operator, the type to which it converts.
1747 Otherwise, NULL_TREE. */
1748 #define DECL_CONV_FN_TYPE(FN) \
1749 (DECL_CONV_FN_P (FN) ? TREE_TYPE (DECL_NAME (FN)) : NULL_TREE)
1751 /* Nonzero if NODE, which is a TEMPLATE_DECL, is a template
1752 conversion operator to a type dependent on the innermost template
1753 args. */
1754 #define DECL_TEMPLATE_CONV_FN_P(NODE) \
1755 (DECL_LANG_SPECIFIC (NODE)->decl_flags.template_conv_p)
1757 /* Set the overloaded operator code for NODE to CODE. */
1758 #define SET_OVERLOADED_OPERATOR_CODE(NODE, CODE) \
1759 (DECL_LANG_SPECIFIC (NODE)->u.f.operator_code = (CODE))
1761 /* If NODE is an overloaded operator, then this returns the TREE_CODE
1762 associated with the overloaded operator.
1763 DECL_ASSIGNMENT_OPERATOR_P must also be checked to determine
1764 whether or not NODE is an assignment operator. If NODE is not an
1765 overloaded operator, ERROR_MARK is returned. Since the numerical
1766 value of ERROR_MARK is zero, this macro can be used as a predicate
1767 to test whether or not NODE is an overloaded operator. */
1768 #define DECL_OVERLOADED_OPERATOR_P(NODE) \
1769 (IDENTIFIER_OPNAME_P (DECL_NAME (NODE)) \
1770 ? DECL_LANG_SPECIFIC (NODE)->u.f.operator_code : ERROR_MARK)
1772 /* Nonzero if NODE is an assignment operator. */
1773 #define DECL_ASSIGNMENT_OPERATOR_P(NODE) \
1774 (DECL_LANG_SPECIFIC (NODE)->decl_flags.assignment_operator_p)
1776 /* For FUNCTION_DECLs: nonzero means that this function is a
1777 constructor or a destructor with an extra in-charge parameter to
1778 control whether or not virtual bases are constructed. */
1779 #define DECL_HAS_IN_CHARGE_PARM_P(NODE) \
1780 (DECL_LANG_SPECIFIC (NODE)->decl_flags.has_in_charge_parm_p)
1782 /* Nonzero if DECL is a declaration of __builtin_constant_p. */
1783 #define DECL_IS_BUILTIN_CONSTANT_P(NODE) \
1784 (TREE_CODE (NODE) == FUNCTION_DECL \
1785 && DECL_BUILT_IN_CLASS (NODE) == BUILT_IN_NORMAL \
1786 && DECL_FUNCTION_CODE (NODE) == BUILT_IN_CONSTANT_P)
1788 /* Nonzero for _DECL means that this decl appears in (or will appear
1789 in) as a member in a RECORD_TYPE or UNION_TYPE node. It is also for
1790 detecting circularity in case members are multiply defined. In the
1791 case of a VAR_DECL, it is also used to determine how program storage
1792 should be allocated. */
1793 #define DECL_IN_AGGR_P(NODE) (DECL_LANG_FLAG_3 (NODE))
1795 /* Nonzero for a VAR_DECL means that the variable's initialization (if
1796 any) has been processed. (In general, DECL_INITIALIZED_P is
1797 !DECL_EXTERN, but static data members may be initialized even if
1798 not defined.) */
1799 #define DECL_INITIALIZED_P(NODE) \
1800 (TREE_LANG_FLAG_1 (VAR_DECL_CHECK (NODE)))
1802 /* Nonzero for a VAR_DECL iff an explicit initializer was provided. */
1803 #define DECL_NONTRIVIALLY_INITIALIZED_P(NODE) \
1804 (TREE_LANG_FLAG_3 (VAR_DECL_CHECK (NODE)))
1806 /* Nonzero for a VAR_DECL that was initialized with a
1807 constant-expression. */
1808 #define DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P(NODE) \
1809 (TREE_LANG_FLAG_2 (VAR_DECL_CHECK (NODE)))
1811 /* Nonzero for a VAR_DECL that can be used in an integral constant
1812 expression.
1814 [expr.const]
1816 An integral constant-expression can only involve ... const
1817 variables of static or enumeration types initialized with
1818 constant expressions ...
1820 The standard does not require that the expression be non-volatile.
1821 G++ implements the proposed correction in DR 457. */
1822 #define DECL_INTEGRAL_CONSTANT_VAR_P(NODE) \
1823 (TREE_CODE (NODE) == VAR_DECL \
1824 && CP_TYPE_CONST_NON_VOLATILE_P (TREE_TYPE (NODE)) \
1825 && INTEGRAL_OR_ENUMERATION_TYPE_P (TREE_TYPE (NODE)) \
1826 && DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (NODE))
1828 /* Nonzero if the DECL was initialized in the class definition itself,
1829 rather than outside the class. This is used for both static member
1830 VAR_DECLS, and FUNTION_DECLS that are defined in the class. */
1831 #define DECL_INITIALIZED_IN_CLASS_P(DECL) \
1832 (DECL_LANG_SPECIFIC (DECL)->decl_flags.initialized_in_class)
1834 /* Nonzero for DECL means that this decl is just a friend declaration,
1835 and should not be added to the list of members for this class. */
1836 #define DECL_FRIEND_P(NODE) (DECL_LANG_SPECIFIC (NODE)->decl_flags.friend_attr)
1838 /* A TREE_LIST of the types which have befriended this FUNCTION_DECL. */
1839 #define DECL_BEFRIENDING_CLASSES(NODE) \
1840 (DECL_LANG_SPECIFIC (NODE)->u.f.befriending_classes)
1842 /* Nonzero for FUNCTION_DECL means that this decl is a static
1843 member function. */
1844 #define DECL_STATIC_FUNCTION_P(NODE) \
1845 (DECL_LANG_SPECIFIC (NODE)->decl_flags.static_function)
1847 /* Nonzero for FUNCTION_DECL means that this decl is a non-static
1848 member function. */
1849 #define DECL_NONSTATIC_MEMBER_FUNCTION_P(NODE) \
1850 (TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE)
1852 /* Nonzero for FUNCTION_DECL means that this decl is a member function
1853 (static or non-static). */
1854 #define DECL_FUNCTION_MEMBER_P(NODE) \
1855 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) || DECL_STATIC_FUNCTION_P (NODE))
1857 /* Nonzero for FUNCTION_DECL means that this member function
1858 has `this' as const X *const. */
1859 #define DECL_CONST_MEMFUNC_P(NODE) \
1860 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
1861 && CP_TYPE_CONST_P (TREE_TYPE (TREE_VALUE \
1862 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
1864 /* Nonzero for FUNCTION_DECL means that this member function
1865 has `this' as volatile X *const. */
1866 #define DECL_VOLATILE_MEMFUNC_P(NODE) \
1867 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
1868 && CP_TYPE_VOLATILE_P (TREE_TYPE (TREE_VALUE \
1869 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
1871 /* Nonzero for a DECL means that this member is a non-static member. */
1872 #define DECL_NONSTATIC_MEMBER_P(NODE) \
1873 ((TREE_CODE (NODE) == FUNCTION_DECL \
1874 && DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE)) \
1875 || TREE_CODE (NODE) == FIELD_DECL)
1877 /* Nonzero for _DECL means that this member object type
1878 is mutable. */
1879 #define DECL_MUTABLE_P(NODE) (DECL_LANG_FLAG_0 (NODE))
1881 /* Nonzero for _DECL means that this constructor is a non-converting
1882 constructor. */
1883 #define DECL_NONCONVERTING_P(NODE) \
1884 (DECL_LANG_SPECIFIC (NODE)->decl_flags.nonconverting)
1886 /* Nonzero for FUNCTION_DECL means that this member function is a pure
1887 virtual function. */
1888 #define DECL_PURE_VIRTUAL_P(NODE) \
1889 (DECL_LANG_SPECIFIC (NODE)->decl_flags.pure_virtual)
1891 /* True (in a FUNCTION_DECL) if NODE is a virtual function that is an
1892 invalid overrider for a function from a base class. Once we have
1893 complained about an invalid overrider we avoid complaining about it
1894 again. */
1895 #define DECL_INVALID_OVERRIDER_P(NODE) \
1896 (DECL_LANG_FLAG_4 (NODE))
1898 /* The thunks associated with NODE, a FUNCTION_DECL. */
1899 #define DECL_THUNKS(NODE) \
1900 (DECL_LANG_SPECIFIC (NODE)->u.f.context)
1902 /* Nonzero if NODE is a thunk, rather than an ordinary function. */
1903 #define DECL_THUNK_P(NODE) \
1904 (TREE_CODE (NODE) == FUNCTION_DECL \
1905 && DECL_LANG_SPECIFIC (NODE) \
1906 && DECL_LANG_SPECIFIC (NODE)->decl_flags.thunk_p)
1908 /* Set DECL_THUNK_P for node. */
1909 #define SET_DECL_THUNK_P(NODE, THIS_ADJUSTING) \
1910 (DECL_LANG_SPECIFIC (NODE)->decl_flags.thunk_p = 1, \
1911 DECL_LANG_SPECIFIC (NODE)->u.f.u3sel = 1, \
1912 DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p = (THIS_ADJUSTING))
1914 /* Nonzero if NODE is a this pointer adjusting thunk. */
1915 #define DECL_THIS_THUNK_P(NODE) \
1916 (DECL_THUNK_P (NODE) && DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p)
1918 /* Nonzero if NODE is a result pointer adjusting thunk. */
1919 #define DECL_RESULT_THUNK_P(NODE) \
1920 (DECL_THUNK_P (NODE) && !DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p)
1922 /* Nonzero if NODE is a FUNCTION_DECL, but not a thunk. */
1923 #define DECL_NON_THUNK_FUNCTION_P(NODE) \
1924 (TREE_CODE (NODE) == FUNCTION_DECL && !DECL_THUNK_P (NODE))
1926 /* Nonzero if NODE is `extern "C"'. */
1927 #define DECL_EXTERN_C_P(NODE) \
1928 (DECL_LANGUAGE (NODE) == lang_c)
1930 /* Nonzero if NODE is an `extern "C"' function. */
1931 #define DECL_EXTERN_C_FUNCTION_P(NODE) \
1932 (DECL_NON_THUNK_FUNCTION_P (NODE) && DECL_EXTERN_C_P (NODE))
1934 /* True iff DECL is an entity with vague linkage whose definition is
1935 available in this translation unit. */
1936 #define DECL_REPO_AVAILABLE_P(NODE) \
1937 (DECL_LANG_SPECIFIC (NODE)->decl_flags.repo_available_p)
1939 /* Nonzero if this DECL is the __PRETTY_FUNCTION__ variable in a
1940 template function. */
1941 #define DECL_PRETTY_FUNCTION_P(NODE) \
1942 (TREE_LANG_FLAG_0 (VAR_DECL_CHECK (NODE)))
1944 /* The _TYPE context in which this _DECL appears. This field holds the
1945 class where a virtual function instance is actually defined. */
1946 #define DECL_CLASS_CONTEXT(NODE) \
1947 (DECL_CLASS_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : NULL_TREE)
1949 /* For a non-member friend function, the class (if any) in which this
1950 friend was defined. For example, given:
1952 struct S { friend void f (); };
1954 the DECL_FRIEND_CONTEXT for `f' will be `S'. */
1955 #define DECL_FRIEND_CONTEXT(NODE) \
1956 ((DECL_FRIEND_P (NODE) && !DECL_FUNCTION_MEMBER_P (NODE)) \
1957 ? DECL_LANG_SPECIFIC (NODE)->u.f.context \
1958 : NULL_TREE)
1960 /* Set the DECL_FRIEND_CONTEXT for NODE to CONTEXT. */
1961 #define SET_DECL_FRIEND_CONTEXT(NODE, CONTEXT) \
1962 (DECL_LANG_SPECIFIC (NODE)->u.f.context = (CONTEXT))
1964 /* NULL_TREE in DECL_CONTEXT represents the global namespace. */
1965 #define CP_DECL_CONTEXT(NODE) \
1966 (DECL_CONTEXT (NODE) ? DECL_CONTEXT (NODE) : global_namespace)
1967 #define FROB_CONTEXT(NODE) ((NODE) == global_namespace ? NULL_TREE : (NODE))
1969 /* 1 iff NODE has namespace scope, including the global namespace. */
1970 #define DECL_NAMESPACE_SCOPE_P(NODE) \
1971 (!DECL_TEMPLATE_PARM_P (NODE) \
1972 && TREE_CODE (CP_DECL_CONTEXT (NODE)) == NAMESPACE_DECL)
1974 /* 1 iff NODE is a class member. */
1975 #define DECL_CLASS_SCOPE_P(NODE) \
1976 (DECL_CONTEXT (NODE) && TYPE_P (DECL_CONTEXT (NODE)))
1978 /* 1 iff NODE is function-local. */
1979 #define DECL_FUNCTION_SCOPE_P(NODE) \
1980 (DECL_CONTEXT (NODE) \
1981 && TREE_CODE (DECL_CONTEXT (NODE)) == FUNCTION_DECL)
1983 /* 1 iff VAR_DECL node NODE is a type-info decl. This flag is set for
1984 both the primary typeinfo object and the associated NTBS name. */
1985 #define DECL_TINFO_P(NODE) TREE_LANG_FLAG_4 (VAR_DECL_CHECK (NODE))
1987 /* 1 iff VAR_DECL node NODE is virtual table or VTT. */
1988 #define DECL_VTABLE_OR_VTT_P(NODE) TREE_LANG_FLAG_5 (VAR_DECL_CHECK (NODE))
1990 /* Returns 1 iff VAR_DECL is a construction virtual table.
1991 DECL_VTABLE_OR_VTT_P will be true in this case and must be checked
1992 before using this macro. */
1993 #define DECL_CONSTRUCTION_VTABLE_P(NODE) \
1994 TREE_LANG_FLAG_6 (VAR_DECL_CHECK (NODE))
1996 /* 1 iff NODE is function-local, but for types. */
1997 #define LOCAL_CLASS_P(NODE) \
1998 (decl_function_context (TYPE_MAIN_DECL (NODE)) != NULL_TREE)
2000 /* For a NAMESPACE_DECL: the list of using namespace directives
2001 The PURPOSE is the used namespace, the value is the namespace
2002 that is the common ancestor. */
2003 #define DECL_NAMESPACE_USING(NODE) DECL_VINDEX (NAMESPACE_DECL_CHECK (NODE))
2005 /* In a NAMESPACE_DECL, the DECL_INITIAL is used to record all users
2006 of a namespace, to record the transitive closure of using namespace. */
2007 #define DECL_NAMESPACE_USERS(NODE) DECL_INITIAL (NAMESPACE_DECL_CHECK (NODE))
2009 /* In a NAMESPACE_DECL, the list of namespaces which have associated
2010 themselves with this one. */
2011 #define DECL_NAMESPACE_ASSOCIATIONS(NODE) \
2012 (NAMESPACE_DECL_CHECK (NODE)->decl_non_common.saved_tree)
2014 /* In a NAMESPACE_DECL, points to the original namespace if this is
2015 a namespace alias. */
2016 #define DECL_NAMESPACE_ALIAS(NODE) \
2017 DECL_ABSTRACT_ORIGIN (NAMESPACE_DECL_CHECK (NODE))
2018 #define ORIGINAL_NAMESPACE(NODE) \
2019 (DECL_NAMESPACE_ALIAS (NODE) ? DECL_NAMESPACE_ALIAS (NODE) : (NODE))
2021 /* Nonzero if NODE is the std namespace. */
2022 #define DECL_NAMESPACE_STD_P(NODE) \
2023 (TREE_CODE (NODE) == NAMESPACE_DECL \
2024 && CP_DECL_CONTEXT (NODE) == global_namespace \
2025 && DECL_NAME (NODE) == std_identifier)
2027 /* In a TREE_LIST concatenating using directives, indicate indirect
2028 directives */
2029 #define TREE_INDIRECT_USING(NODE) (TREE_LIST_CHECK (NODE)->common.lang_flag_0)
2031 extern tree decl_shadowed_for_var_lookup (tree);
2032 extern void decl_shadowed_for_var_insert (tree, tree);
2034 /* Non zero if this is a using decl for a dependent scope. */
2035 #define DECL_DEPENDENT_P(NODE) DECL_LANG_FLAG_0 (USING_DECL_CHECK (NODE))
2037 /* The scope named in a using decl. */
2038 #define USING_DECL_SCOPE(NODE) TREE_TYPE (USING_DECL_CHECK (NODE))
2040 /* The decls named by a using decl. */
2041 #define USING_DECL_DECLS(NODE) DECL_INITIAL (USING_DECL_CHECK (NODE))
2043 /* In a VAR_DECL, true if we have a shadowed local variable
2044 in the shadowed var table for this VAR_DECL. */
2045 #define DECL_HAS_SHADOWED_FOR_VAR_P(NODE) \
2046 (VAR_DECL_CHECK (NODE)->decl_with_vis.shadowed_for_var_p)
2048 /* In a VAR_DECL for a variable declared in a for statement,
2049 this is the shadowed (local) variable. */
2050 #define DECL_SHADOWED_FOR_VAR(NODE) \
2051 (DECL_HAS_SHADOWED_FOR_VAR_P(NODE) ? decl_shadowed_for_var_lookup (NODE) : NULL)
2053 #define SET_DECL_SHADOWED_FOR_VAR(NODE, VAL) \
2054 (decl_shadowed_for_var_insert (NODE, VAL))
2056 /* In a FUNCTION_DECL, this is nonzero if this function was defined in
2057 the class definition. We have saved away the text of the function,
2058 but have not yet processed it. */
2059 #define DECL_PENDING_INLINE_P(NODE) \
2060 (DECL_LANG_SPECIFIC (NODE)->u.f.pending_inline_p)
2062 /* If DECL_PENDING_INLINE_P holds, this is the saved text of the
2063 function. */
2064 #define DECL_PENDING_INLINE_INFO(NODE) \
2065 (DECL_LANG_SPECIFIC (NODE)->u.f.u.pending_inline_info)
2067 /* For a TYPE_DECL: if this structure has many fields, we'll sort them
2068 and put them into a TREE_VEC. */
2069 #define DECL_SORTED_FIELDS(NODE) \
2070 (DECL_LANG_SPECIFIC (TYPE_DECL_CHECK (NODE))->u.f.u.sorted_fields)
2072 /* True if on the deferred_fns (see decl2.c) list. */
2073 #define DECL_DEFERRED_FN(DECL) \
2074 (DECL_LANG_SPECIFIC (DECL)->decl_flags.deferred)
2076 /* If non-NULL for a VAR_DECL, FUNCTION_DECL, TYPE_DECL or
2077 TEMPLATE_DECL, the entity is a template specialization. In that
2078 case, DECL_TEMPLATE_INFO is a TREE_LIST, whose TREE_PURPOSE is the
2079 TEMPLATE_DECL of which this entity is a specialization. The TREE_
2080 TREE_VALUE is the template arguments used to specialize the
2081 template.
2083 In general, DECL_TEMPLATE_INFO is non-NULL only if
2084 DECL_USE_TEMPLATE is nonzero. However, for friends, we sometimes
2085 have DECL_TEMPLATE_INFO even when DECL_USE_TEMPLATE is zero.
2086 Consider:
2088 template <typename T> struct S { friend void f(T) {} };
2090 In this case, S<int>::f is, from the point of view of the compiler,
2091 an instantiation of a template -- but, from the point of view of
2092 the language, each instantiation of S results in a wholly unrelated
2093 global function f. */
2094 #define DECL_TEMPLATE_INFO(NODE) \
2095 (DECL_LANG_SPECIFIC (VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK (NODE)) \
2096 ->decl_flags.u.template_info)
2098 /* For a VAR_DECL, indicates that the variable has been processed.
2099 This flag is set and unset throughout the code; it is always
2100 used for a temporary purpose. */
2101 #define DECL_VAR_MARKED_P(NODE) \
2102 (DECL_LANG_FLAG_4 (VAR_DECL_CHECK (NODE)))
2104 /* Template information for a RECORD_TYPE or UNION_TYPE. */
2105 #define CLASSTYPE_TEMPLATE_INFO(NODE) \
2106 (LANG_TYPE_CLASS_CHECK (RECORD_OR_UNION_CHECK (NODE))->template_info)
2108 /* Template information for an ENUMERAL_TYPE. Although an enumeration may
2109 not be a primary template, it may be declared within the scope of a
2110 primary template and the enumeration constants may depend on
2111 non-type template parameters. */
2112 #define ENUM_TEMPLATE_INFO(NODE) \
2113 (TYPE_LANG_SLOT_1 (ENUMERAL_TYPE_CHECK (NODE)))
2115 /* Template information for a template template parameter. */
2116 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO(NODE) \
2117 (LANG_TYPE_CLASS_CHECK (BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK (NODE)) \
2118 ->template_info)
2120 /* Template information for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2121 #define TYPE_TEMPLATE_INFO(NODE) \
2122 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2123 ? ENUM_TEMPLATE_INFO (NODE) : \
2124 (TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM \
2125 ? TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO (NODE) : \
2126 (TYPE_LANG_SPECIFIC (NODE) \
2127 ? CLASSTYPE_TEMPLATE_INFO (NODE) \
2128 : NULL_TREE)))
2130 /* Set the template information for an ENUMERAL_, RECORD_, or
2131 UNION_TYPE to VAL. */
2132 #define SET_TYPE_TEMPLATE_INFO(NODE, VAL) \
2133 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2134 ? (ENUM_TEMPLATE_INFO (NODE) = (VAL)) \
2135 : (CLASSTYPE_TEMPLATE_INFO (NODE) = (VAL)))
2137 #define TI_TEMPLATE(NODE) (TREE_PURPOSE (NODE))
2138 #define TI_ARGS(NODE) (TREE_VALUE (NODE))
2139 #define TI_PENDING_TEMPLATE_FLAG(NODE) TREE_LANG_FLAG_1 (NODE)
2141 /* We use TREE_VECs to hold template arguments. If there is only one
2142 level of template arguments, then the TREE_VEC contains the
2143 arguments directly. If there is more than one level of template
2144 arguments, then each entry in the TREE_VEC is itself a TREE_VEC,
2145 containing the template arguments for a single level. The first
2146 entry in the outer TREE_VEC is the outermost level of template
2147 parameters; the last is the innermost.
2149 It is incorrect to ever form a template argument vector containing
2150 only one level of arguments, but which is a TREE_VEC containing as
2151 its only entry the TREE_VEC for that level. */
2153 /* Nonzero if the template arguments is actually a vector of vectors,
2154 rather than just a vector. */
2155 #define TMPL_ARGS_HAVE_MULTIPLE_LEVELS(NODE) \
2156 (NODE && TREE_VEC_ELT (NODE, 0) \
2157 && TREE_CODE (TREE_VEC_ELT (NODE, 0)) == TREE_VEC)
2159 /* The depth of a template argument vector. When called directly by
2160 the parser, we use a TREE_LIST rather than a TREE_VEC to represent
2161 template arguments. In fact, we may even see NULL_TREE if there
2162 are no template arguments. In both of those cases, there is only
2163 one level of template arguments. */
2164 #define TMPL_ARGS_DEPTH(NODE) \
2165 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (NODE) ? TREE_VEC_LENGTH (NODE) : 1)
2167 /* The LEVELth level of the template ARGS. The outermost level of
2168 args is level 1, not level 0. */
2169 #define TMPL_ARGS_LEVEL(ARGS, LEVEL) \
2170 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (ARGS) \
2171 ? TREE_VEC_ELT (ARGS, (LEVEL) - 1) : (ARGS))
2173 /* Set the LEVELth level of the template ARGS to VAL. This macro does
2174 not work with single-level argument vectors. */
2175 #define SET_TMPL_ARGS_LEVEL(ARGS, LEVEL, VAL) \
2176 (TREE_VEC_ELT (ARGS, (LEVEL) - 1) = (VAL))
2178 /* Accesses the IDXth parameter in the LEVELth level of the ARGS. */
2179 #define TMPL_ARG(ARGS, LEVEL, IDX) \
2180 (TREE_VEC_ELT (TMPL_ARGS_LEVEL (ARGS, LEVEL), IDX))
2182 /* Given a single level of template arguments in NODE, return the
2183 number of arguments. */
2184 #define NUM_TMPL_ARGS(NODE) \
2185 (TREE_VEC_LENGTH (NODE))
2187 /* Returns the innermost level of template arguments in ARGS. */
2188 #define INNERMOST_TEMPLATE_ARGS(NODE) \
2189 (get_innermost_template_args ((NODE), 1))
2191 /* The number of levels of template parameters given by NODE. */
2192 #define TMPL_PARMS_DEPTH(NODE) \
2193 ((HOST_WIDE_INT) TREE_INT_CST_LOW (TREE_PURPOSE (NODE)))
2195 /* The TEMPLATE_DECL instantiated or specialized by NODE. This
2196 TEMPLATE_DECL will be the immediate parent, not the most general
2197 template. For example, in:
2199 template <class T> struct S { template <class U> void f(U); }
2201 the FUNCTION_DECL for S<int>::f<double> will have, as its
2202 DECL_TI_TEMPLATE, `template <class U> S<int>::f<U>'.
2204 As a special case, for a member friend template of a template
2205 class, this value will not be a TEMPLATE_DECL, but rather an
2206 IDENTIFIER_NODE or OVERLOAD indicating the name of the template and
2207 any explicit template arguments provided. For example, in:
2209 template <class T> struct S { friend void f<int>(int, double); }
2211 the DECL_TI_TEMPLATE will be an IDENTIFIER_NODE for `f' and the
2212 DECL_TI_ARGS will be {int}. */
2213 #define DECL_TI_TEMPLATE(NODE) TI_TEMPLATE (DECL_TEMPLATE_INFO (NODE))
2215 /* The template arguments used to obtain this decl from the most
2216 general form of DECL_TI_TEMPLATE. For the example given for
2217 DECL_TI_TEMPLATE, the DECL_TI_ARGS will be {int, double}. These
2218 are always the full set of arguments required to instantiate this
2219 declaration from the most general template specialized here. */
2220 #define DECL_TI_ARGS(NODE) TI_ARGS (DECL_TEMPLATE_INFO (NODE))
2221 #define CLASSTYPE_TI_TEMPLATE(NODE) TI_TEMPLATE (CLASSTYPE_TEMPLATE_INFO (NODE))
2222 #define CLASSTYPE_TI_ARGS(NODE) TI_ARGS (CLASSTYPE_TEMPLATE_INFO (NODE))
2224 /* For a template instantiation TYPE, returns the TYPE corresponding
2225 to the primary template. Otherwise returns TYPE itself. */
2226 #define CLASSTYPE_PRIMARY_TEMPLATE_TYPE(TYPE) \
2227 ((CLASSTYPE_USE_TEMPLATE ((TYPE)) \
2228 && !CLASSTYPE_TEMPLATE_SPECIALIZATION ((TYPE))) \
2229 ? TREE_TYPE (DECL_TEMPLATE_RESULT (DECL_PRIMARY_TEMPLATE \
2230 (CLASSTYPE_TI_TEMPLATE ((TYPE))))) \
2231 : (TYPE))
2233 /* Like DECL_TI_TEMPLATE, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2234 #define TYPE_TI_TEMPLATE(NODE) \
2235 (TI_TEMPLATE (TYPE_TEMPLATE_INFO (NODE)))
2237 /* Like DECL_TI_ARGS, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2238 #define TYPE_TI_ARGS(NODE) \
2239 (TI_ARGS (TYPE_TEMPLATE_INFO (NODE)))
2241 #define INNERMOST_TEMPLATE_PARMS(NODE) TREE_VALUE (NODE)
2243 /* Nonzero if NODE (a TEMPLATE_DECL) is a member template, in the
2244 sense of [temp.mem]. */
2245 #define DECL_MEMBER_TEMPLATE_P(NODE) \
2246 (DECL_LANG_FLAG_1 (TEMPLATE_DECL_CHECK (NODE)))
2248 /* Nonzero if the NODE corresponds to the template parameters for a
2249 member template, whose inline definition is being processed after
2250 the class definition is complete. */
2251 #define TEMPLATE_PARMS_FOR_INLINE(NODE) TREE_LANG_FLAG_1 (NODE)
2253 /* In a FUNCTION_DECL, the saved language-specific per-function data. */
2254 #define DECL_SAVED_FUNCTION_DATA(NODE) \
2255 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (NODE)) \
2256 ->u.f.u.saved_language_function)
2258 /* Indicates an indirect_expr is for converting a reference. */
2259 #define REFERENCE_REF_P(NODE) \
2260 TREE_LANG_FLAG_0 (INDIRECT_REF_CHECK (NODE))
2262 #define NEW_EXPR_USE_GLOBAL(NODE) \
2263 TREE_LANG_FLAG_0 (NEW_EXPR_CHECK (NODE))
2264 #define DELETE_EXPR_USE_GLOBAL(NODE) \
2265 TREE_LANG_FLAG_0 (DELETE_EXPR_CHECK (NODE))
2266 #define DELETE_EXPR_USE_VEC(NODE) \
2267 TREE_LANG_FLAG_1 (DELETE_EXPR_CHECK (NODE))
2269 /* Indicates that this is a non-dependent COMPOUND_EXPR which will
2270 resolve to a function call. */
2271 #define COMPOUND_EXPR_OVERLOADED(NODE) \
2272 TREE_LANG_FLAG_0 (COMPOUND_EXPR_CHECK (NODE))
2274 /* In a CALL_EXPR appearing in a template, true if Koenig lookup
2275 should be performed at instantiation time. */
2276 #define KOENIG_LOOKUP_P(NODE) TREE_LANG_FLAG_0 (CALL_EXPR_CHECK (NODE))
2278 /* Indicates whether a string literal has been parenthesized. Such
2279 usages are disallowed in certain circumstances. */
2281 #define PAREN_STRING_LITERAL_P(NODE) \
2282 TREE_LANG_FLAG_0 (STRING_CST_CHECK (NODE))
2284 /* Nonzero if this AGGR_INIT_EXPR provides for initialization via a
2285 constructor call, rather than an ordinary function call. */
2286 #define AGGR_INIT_VIA_CTOR_P(NODE) \
2287 TREE_LANG_FLAG_0 (AGGR_INIT_EXPR_CHECK (NODE))
2289 /* The TYPE_MAIN_DECL for a class template type is a TYPE_DECL, not a
2290 TEMPLATE_DECL. This macro determines whether or not a given class
2291 type is really a template type, as opposed to an instantiation or
2292 specialization of one. */
2293 #define CLASSTYPE_IS_TEMPLATE(NODE) \
2294 (CLASSTYPE_TEMPLATE_INFO (NODE) \
2295 && !CLASSTYPE_USE_TEMPLATE (NODE) \
2296 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE)))
2298 /* The name used by the user to name the typename type. Typically,
2299 this is an IDENTIFIER_NODE, and the same as the DECL_NAME on the
2300 corresponding TYPE_DECL. However, this may also be a
2301 TEMPLATE_ID_EXPR if we had something like `typename X::Y<T>'. */
2302 #define TYPENAME_TYPE_FULLNAME(NODE) (TYPENAME_TYPE_CHECK (NODE))->type.values
2304 /* True if a TYPENAME_TYPE was declared as an "enum". */
2305 #define TYPENAME_IS_ENUM_P(NODE) \
2306 (TREE_LANG_FLAG_0 (TYPENAME_TYPE_CHECK (NODE)))
2308 /* True if a TYPENAME_TYPE was declared as a "class", "struct", or
2309 "union". */
2310 #define TYPENAME_IS_CLASS_P(NODE) \
2311 (TREE_LANG_FLAG_1 (TYPENAME_TYPE_CHECK (NODE)))
2313 /* Nonzero in INTEGER_CST means that this int is negative by dint of
2314 using a twos-complement negated operand. */
2315 #define TREE_NEGATED_INT(NODE) TREE_LANG_FLAG_0 (INTEGER_CST_CHECK (NODE))
2317 /* [class.virtual]
2319 A class that declares or inherits a virtual function is called a
2320 polymorphic class. */
2321 #define TYPE_POLYMORPHIC_P(NODE) (TREE_LANG_FLAG_2 (NODE))
2323 /* Nonzero if this class has a virtual function table pointer. */
2324 #define TYPE_CONTAINS_VPTR_P(NODE) \
2325 (TYPE_POLYMORPHIC_P (NODE) || CLASSTYPE_VBASECLASSES (NODE))
2327 /* This flag is true of a local VAR_DECL if it was declared in a for
2328 statement, but we are no longer in the scope of the for. */
2329 #define DECL_DEAD_FOR_LOCAL(NODE) DECL_LANG_FLAG_7 (VAR_DECL_CHECK (NODE))
2331 /* This flag is set on a VAR_DECL that is a DECL_DEAD_FOR_LOCAL
2332 if we already emitted a warning about using it. */
2333 #define DECL_ERROR_REPORTED(NODE) DECL_LANG_FLAG_0 (VAR_DECL_CHECK (NODE))
2335 /* Nonzero if NODE is a FUNCTION_DECL (for a function with global
2336 scope) declared in a local scope. */
2337 #define DECL_LOCAL_FUNCTION_P(NODE) \
2338 DECL_LANG_FLAG_0 (FUNCTION_DECL_CHECK (NODE))
2340 /* Nonzero if NODE is a DECL which we know about but which has not
2341 been explicitly declared, such as a built-in function or a friend
2342 declared inside a class. In the latter case DECL_HIDDEN_FRIEND_P
2343 will be set. */
2344 #define DECL_ANTICIPATED(NODE) \
2345 (DECL_LANG_SPECIFIC (DECL_COMMON_CHECK (NODE))->decl_flags.anticipated_p)
2347 /* Nonzero if NODE is a FUNCTION_DECL which was declared as a friend
2348 within a class but has not been declared in the surrounding scope.
2349 The function is invisible except via argument dependent lookup. */
2350 #define DECL_HIDDEN_FRIEND_P(NODE) \
2351 (DECL_LANG_SPECIFIC (DECL_COMMON_CHECK (NODE))->decl_flags.hidden_friend_p)
2353 /* Nonzero if DECL has been declared threadprivate by
2354 #pragma omp threadprivate. */
2355 #define CP_DECL_THREADPRIVATE_P(DECL) \
2356 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (DECL))->decl_flags.threadprivate_p)
2358 /* Record whether a typedef for type `int' was actually `signed int'. */
2359 #define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP)
2361 /* Returns nonzero if DECL has external linkage, as specified by the
2362 language standard. (This predicate may hold even when the
2363 corresponding entity is not actually given external linkage in the
2364 object file; see decl_linkage for details.) */
2365 #define DECL_EXTERNAL_LINKAGE_P(DECL) \
2366 (decl_linkage (DECL) == lk_external)
2368 /* Keep these codes in ascending code order. */
2370 #define INTEGRAL_CODE_P(CODE) \
2371 ((CODE) == ENUMERAL_TYPE \
2372 || (CODE) == BOOLEAN_TYPE \
2373 || (CODE) == INTEGER_TYPE)
2375 /* [basic.fundamental]
2377 Types bool, char, wchar_t, and the signed and unsigned integer types
2378 are collectively called integral types.
2380 Note that INTEGRAL_TYPE_P, as defined in tree.h, allows enumeration
2381 types as well, which is incorrect in C++. Keep these checks in
2382 ascending code order. */
2383 #define CP_INTEGRAL_TYPE_P(TYPE) \
2384 (TREE_CODE (TYPE) == BOOLEAN_TYPE \
2385 || TREE_CODE (TYPE) == INTEGER_TYPE)
2387 /* Returns true if TYPE is an integral or enumeration name. Keep
2388 these checks in ascending code order. */
2389 #define INTEGRAL_OR_ENUMERATION_TYPE_P(TYPE) \
2390 (TREE_CODE (TYPE) == ENUMERAL_TYPE || CP_INTEGRAL_TYPE_P (TYPE))
2392 /* [basic.fundamental]
2394 Integral and floating types are collectively called arithmetic
2395 types. Keep these checks in ascending code order. */
2396 #define ARITHMETIC_TYPE_P(TYPE) \
2397 (CP_INTEGRAL_TYPE_P (TYPE) || TREE_CODE (TYPE) == REAL_TYPE)
2399 /* [basic.types]
2401 Arithmetic types, enumeration types, pointer types, and
2402 pointer-to-member types, are collectively called scalar types.
2403 Keep these checks in ascending code order. */
2404 #define SCALAR_TYPE_P(TYPE) \
2405 (TYPE_PTRMEM_P (TYPE) \
2406 || TREE_CODE (TYPE) == ENUMERAL_TYPE \
2407 || ARITHMETIC_TYPE_P (TYPE) \
2408 || TYPE_PTR_P (TYPE) \
2409 || TYPE_PTRMEMFUNC_P (TYPE))
2411 /* [dcl.init.aggr]
2413 An aggregate is an array or a class with no user-declared
2414 constructors, no private or protected non-static data members, no
2415 base classes, and no virtual functions.
2417 As an extension, we also treat vectors as aggregates. Keep these
2418 checks in ascending code order. */
2419 #define CP_AGGREGATE_TYPE_P(TYPE) \
2420 (TREE_CODE (TYPE) == VECTOR_TYPE \
2421 ||TREE_CODE (TYPE) == ARRAY_TYPE \
2422 || (CLASS_TYPE_P (TYPE) && !CLASSTYPE_NON_AGGREGATE (TYPE)))
2424 /* Nonzero for a class type means that the class type has a
2425 user-declared constructor. */
2426 #define TYPE_HAS_CONSTRUCTOR(NODE) (TYPE_LANG_FLAG_1 (NODE))
2428 /* When appearing in an INDIRECT_REF, it means that the tree structure
2429 underneath is actually a call to a constructor. This is needed
2430 when the constructor must initialize local storage (which can
2431 be automatically destroyed), rather than allowing it to allocate
2432 space from the heap.
2434 When appearing in a SAVE_EXPR, it means that underneath
2435 is a call to a constructor.
2437 When appearing in a CONSTRUCTOR, the expression is a
2438 compound literal.
2440 When appearing in a FIELD_DECL, it means that this field
2441 has been duly initialized in its constructor. */
2442 #define TREE_HAS_CONSTRUCTOR(NODE) (TREE_LANG_FLAG_4 (NODE))
2444 /* True if NODE is a brace-enclosed initializer. */
2445 #define BRACE_ENCLOSED_INITIALIZER_P(NODE) \
2446 (TREE_CODE (NODE) == CONSTRUCTOR && !TREE_TYPE (NODE))
2448 /* True if NODE is a compound-literal, i.e., a brace-enclosed
2449 initializer cast to a particular type. */
2450 #define COMPOUND_LITERAL_P(NODE) \
2451 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_HAS_CONSTRUCTOR (NODE))
2453 #define EMPTY_CONSTRUCTOR_P(NODE) (TREE_CODE (NODE) == CONSTRUCTOR \
2454 && VEC_empty (constructor_elt, \
2455 CONSTRUCTOR_ELTS (NODE)) \
2456 && !TREE_HAS_CONSTRUCTOR (NODE))
2458 /* Nonzero means that an object of this type can not be initialized using
2459 an initializer list. */
2460 #define CLASSTYPE_NON_AGGREGATE(NODE) \
2461 (LANG_TYPE_CLASS_CHECK (NODE)->non_aggregate)
2462 #define TYPE_NON_AGGREGATE_CLASS(NODE) \
2463 (IS_AGGR_TYPE (NODE) && CLASSTYPE_NON_AGGREGATE (NODE))
2465 /* Nonzero if there is a user-defined X::op=(x&) for this class. */
2466 #define TYPE_HAS_COMPLEX_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_assign_ref)
2467 #define TYPE_HAS_COMPLEX_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_init_ref)
2469 /* Nonzero if TYPE has a trivial destructor. From [class.dtor]:
2471 A destructor is trivial if it is an implicitly declared
2472 destructor and if:
2474 - all of the direct base classes of its class have trivial
2475 destructors,
2477 - for all of the non-static data members of its class that are
2478 of class type (or array thereof), each such class has a
2479 trivial destructor. */
2480 #define TYPE_HAS_TRIVIAL_DESTRUCTOR(NODE) \
2481 (!TYPE_HAS_NONTRIVIAL_DESTRUCTOR (NODE))
2483 /* Nonzero for _TYPE node means that this type does not have a trivial
2484 destructor. Therefore, destroying an object of this type will
2485 involve a call to a destructor. This can apply to objects of
2486 ARRAY_TYPE is the type of the elements needs a destructor. */
2487 #define TYPE_HAS_NONTRIVIAL_DESTRUCTOR(NODE) \
2488 (TYPE_LANG_FLAG_4 (NODE))
2490 /* Nonzero for class type means that copy initialization of this type can use
2491 a bitwise copy. */
2492 #define TYPE_HAS_TRIVIAL_INIT_REF(NODE) \
2493 (TYPE_HAS_INIT_REF (NODE) && ! TYPE_HAS_COMPLEX_INIT_REF (NODE))
2495 /* Nonzero for class type means that assignment of this type can use
2496 a bitwise copy. */
2497 #define TYPE_HAS_TRIVIAL_ASSIGN_REF(NODE) \
2498 (TYPE_HAS_ASSIGN_REF (NODE) && ! TYPE_HAS_COMPLEX_ASSIGN_REF (NODE))
2500 /* Returns true if NODE is a pointer-to-data-member. */
2501 #define TYPE_PTRMEM_P(NODE) \
2502 (TREE_CODE (NODE) == OFFSET_TYPE)
2503 /* Returns true if NODE is a pointer. */
2504 #define TYPE_PTR_P(NODE) \
2505 (TREE_CODE (NODE) == POINTER_TYPE)
2506 /* Returns true if NODE is a pointer to an object. Keep these checks
2507 in ascending tree code order. */
2508 #define TYPE_PTROB_P(NODE) \
2509 (TYPE_PTR_P (NODE) \
2510 && !(TREE_CODE (TREE_TYPE (NODE)) == VOID_TYPE \
2511 || TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE \
2512 || TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE))
2513 /* Returns true if NODE is a reference to an object. Keep these checks
2514 in ascending tree code order. */
2515 #define TYPE_REF_OBJ_P(NODE) \
2516 (TREE_CODE (NODE) == REFERENCE_TYPE \
2517 && !(TREE_CODE (TREE_TYPE (NODE)) == VOID_TYPE \
2518 || TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE \
2519 || TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE))
2520 /* Returns true if NODE is a pointer to an object, or a pointer to
2521 void. Keep these checks in ascending tree code order. */
2522 #define TYPE_PTROBV_P(NODE) \
2523 (TYPE_PTR_P (NODE) \
2524 && !(TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE \
2525 || TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE))
2526 /* Returns true if NODE is a pointer to function. */
2527 #define TYPE_PTRFN_P(NODE) \
2528 (TREE_CODE (NODE) == POINTER_TYPE \
2529 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
2530 /* Returns true if NODE is a reference to function. */
2531 #define TYPE_REFFN_P(NODE) \
2532 (TREE_CODE (NODE) == REFERENCE_TYPE \
2533 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
2535 /* Nonzero for _TYPE node means that this type is a pointer to member
2536 function type. */
2537 #define TYPE_PTRMEMFUNC_P(NODE) \
2538 (TREE_CODE (NODE) == RECORD_TYPE \
2539 && TYPE_LANG_SPECIFIC (NODE) \
2540 && TYPE_PTRMEMFUNC_FLAG (NODE))
2542 #define TYPE_PTRMEMFUNC_FLAG(NODE) \
2543 (LANG_TYPE_CLASS_CHECK (NODE)->ptrmemfunc_flag)
2545 /* Returns true if NODE is a pointer-to-member. */
2546 #define TYPE_PTR_TO_MEMBER_P(NODE) \
2547 (TYPE_PTRMEM_P (NODE) || TYPE_PTRMEMFUNC_P (NODE))
2549 /* Indicates when overload resolution may resolve to a pointer to
2550 member function. [expr.unary.op]/3 */
2551 #define PTRMEM_OK_P(NODE) \
2552 TREE_LANG_FLAG_0 (TREE_CHECK2 ((NODE), ADDR_EXPR, OFFSET_REF))
2554 /* Get the POINTER_TYPE to the METHOD_TYPE associated with this
2555 pointer to member function. TYPE_PTRMEMFUNC_P _must_ be true,
2556 before using this macro. */
2557 #define TYPE_PTRMEMFUNC_FN_TYPE(NODE) \
2558 (TREE_TYPE (TYPE_FIELDS (NODE)))
2560 /* Returns `A' for a type like `int (A::*)(double)' */
2561 #define TYPE_PTRMEMFUNC_OBJECT_TYPE(NODE) \
2562 TYPE_METHOD_BASETYPE (TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
2564 /* These are use to manipulate the canonical RECORD_TYPE from the
2565 hashed POINTER_TYPE, and can only be used on the POINTER_TYPE. */
2566 #define TYPE_GET_PTRMEMFUNC_TYPE(NODE) \
2567 (TYPE_LANG_SPECIFIC (NODE) ? LANG_TYPE_PTRMEM_CHECK (NODE)->record : NULL)
2568 #define TYPE_SET_PTRMEMFUNC_TYPE(NODE, VALUE) \
2569 do { \
2570 if (TYPE_LANG_SPECIFIC (NODE) == NULL) \
2572 TYPE_LANG_SPECIFIC (NODE) = GGC_CNEWVAR \
2573 (struct lang_type, sizeof (struct lang_type_ptrmem)); \
2574 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.h.is_lang_type_class = 0; \
2576 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.record = (VALUE); \
2577 } while (0)
2579 /* For a pointer-to-member type of the form `T X::*', this is `X'.
2580 For a type like `void (X::*)() const', this type is `X', not `const
2581 X'. To get at the `const X' you have to look at the
2582 TYPE_PTRMEM_POINTED_TO_TYPE; there, the first parameter will have
2583 type `const X*'. */
2584 #define TYPE_PTRMEM_CLASS_TYPE(NODE) \
2585 (TYPE_PTRMEM_P (NODE) \
2586 ? TYPE_OFFSET_BASETYPE (NODE) \
2587 : TYPE_PTRMEMFUNC_OBJECT_TYPE (NODE))
2589 /* For a pointer-to-member type of the form `T X::*', this is `T'. */
2590 #define TYPE_PTRMEM_POINTED_TO_TYPE(NODE) \
2591 (TYPE_PTRMEM_P (NODE) \
2592 ? TREE_TYPE (NODE) \
2593 : TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
2595 /* For a pointer-to-member constant `X::Y' this is the RECORD_TYPE for
2596 `X'. */
2597 #define PTRMEM_CST_CLASS(NODE) \
2598 TYPE_PTRMEM_CLASS_TYPE (TREE_TYPE (PTRMEM_CST_CHECK (NODE)))
2600 /* For a pointer-to-member constant `X::Y' this is the _DECL for
2601 `Y'. */
2602 #define PTRMEM_CST_MEMBER(NODE) (((ptrmem_cst_t)PTRMEM_CST_CHECK (NODE))->member)
2604 /* The expression in question for a TYPEOF_TYPE. */
2605 #define TYPEOF_TYPE_EXPR(NODE) (TYPEOF_TYPE_CHECK (NODE))->type.values
2607 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `extern' was
2608 specified in its declaration. This can also be set for an
2609 erroneously declared PARM_DECL. */
2610 #define DECL_THIS_EXTERN(NODE) \
2611 DECL_LANG_FLAG_2 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
2613 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `static' was
2614 specified in its declaration. This can also be set for an
2615 erroneously declared PARM_DECL. */
2616 #define DECL_THIS_STATIC(NODE) \
2617 DECL_LANG_FLAG_6 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
2619 /* Nonzero for FIELD_DECL node means that this field is a base class
2620 of the parent object, as opposed to a member field. */
2621 #define DECL_FIELD_IS_BASE(NODE) \
2622 DECL_LANG_FLAG_6 (FIELD_DECL_CHECK (NODE))
2624 /* Nonzero if TYPE is an anonymous union or struct type. We have to use a
2625 flag for this because "A union for which objects or pointers are
2626 declared is not an anonymous union" [class.union]. */
2627 #define ANON_AGGR_TYPE_P(NODE) \
2628 (CLASS_TYPE_P (NODE) && LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr)
2629 #define SET_ANON_AGGR_TYPE_P(NODE) \
2630 (LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr = 1)
2632 /* Nonzero if TYPE is an anonymous union type. */
2633 #define ANON_UNION_TYPE_P(NODE) \
2634 (TREE_CODE (NODE) == UNION_TYPE && ANON_AGGR_TYPE_P (NODE))
2636 #define UNKNOWN_TYPE LANG_TYPE
2638 /* Define fields and accessors for nodes representing declared names. */
2640 #define TYPE_WAS_ANONYMOUS(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->was_anonymous)
2642 /* C++: all of these are overloaded! These apply only to TYPE_DECLs. */
2644 /* The format of each node in the DECL_FRIENDLIST is as follows:
2646 The TREE_PURPOSE will be the name of a function, i.e., an
2647 IDENTIFIER_NODE. The TREE_VALUE will be itself a TREE_LIST, whose
2648 TREE_VALUEs are friends with the given name. */
2649 #define DECL_FRIENDLIST(NODE) (DECL_INITIAL (NODE))
2650 #define FRIEND_NAME(LIST) (TREE_PURPOSE (LIST))
2651 #define FRIEND_DECLS(LIST) (TREE_VALUE (LIST))
2653 /* The DECL_ACCESS, if non-NULL, is a TREE_LIST. The TREE_PURPOSE of
2654 each node is a type; the TREE_VALUE is the access granted for this
2655 DECL in that type. The DECL_ACCESS is set by access declarations.
2656 For example, if a member that would normally be public in a
2657 derived class is made protected, then the derived class and the
2658 protected_access_node will appear in the DECL_ACCESS for the node. */
2659 #define DECL_ACCESS(NODE) (LANG_DECL_U2_CHECK (NODE, 0)->access)
2661 /* Nonzero if the FUNCTION_DECL is a global constructor. */
2662 #define DECL_GLOBAL_CTOR_P(NODE) \
2663 (DECL_LANG_SPECIFIC (NODE)->decl_flags.global_ctor_p)
2665 /* Nonzero if the FUNCTION_DECL is a global destructor. */
2666 #define DECL_GLOBAL_DTOR_P(NODE) \
2667 (DECL_LANG_SPECIFIC (NODE)->decl_flags.global_dtor_p)
2669 /* Accessor macros for C++ template decl nodes. */
2671 /* The DECL_TEMPLATE_PARMS are a list. The TREE_PURPOSE of each node
2672 is a INT_CST whose TREE_INT_CST_LOW indicates the level of the
2673 template parameters, with 1 being the outermost set of template
2674 parameters. The TREE_VALUE is a vector, whose elements are the
2675 template parameters at each level. Each element in the vector is a
2676 TREE_LIST, whose TREE_VALUE is a PARM_DECL (if the parameter is a
2677 non-type parameter), or a TYPE_DECL (if the parameter is a type
2678 parameter). The TREE_PURPOSE is the default value, if any. The
2679 TEMPLATE_PARM_INDEX for the parameter is available as the
2680 DECL_INITIAL (for a PARM_DECL) or as the TREE_TYPE (for a
2681 TYPE_DECL). */
2682 #define DECL_TEMPLATE_PARMS(NODE) DECL_NON_COMMON_CHECK (NODE)->decl_non_common.arguments
2683 #define DECL_INNERMOST_TEMPLATE_PARMS(NODE) \
2684 INNERMOST_TEMPLATE_PARMS (DECL_TEMPLATE_PARMS (NODE))
2685 #define DECL_NTPARMS(NODE) \
2686 TREE_VEC_LENGTH (DECL_INNERMOST_TEMPLATE_PARMS (NODE))
2687 /* For function, method, class-data templates. */
2688 #define DECL_TEMPLATE_RESULT(NODE) DECL_RESULT_FLD (NODE)
2689 /* For a static member variable template, the
2690 DECL_TEMPLATE_INSTANTIATIONS list contains the explicitly and
2691 implicitly generated instantiations of the variable. There are no
2692 partial instantiations of static member variables, so all of these
2693 will be full instantiations.
2695 For a class template the DECL_TEMPLATE_INSTANTIATIONS lists holds
2696 all instantiations and specializations of the class type, including
2697 partial instantiations and partial specializations.
2699 In both cases, the TREE_PURPOSE of each node contains the arguments
2700 used; the TREE_VALUE contains the generated variable. The template
2701 arguments are always complete. For example, given:
2703 template <class T> struct S1 {
2704 template <class U> struct S2 {};
2705 template <class U> struct S2<U*> {};
2708 the record for the partial specialization will contain, as its
2709 argument list, { {T}, {U*} }, and will be on the
2710 DECL_TEMPLATE_INSTANTIATIONS list for `template <class T> template
2711 <class U> struct S1<T>::S2'.
2713 This list is not used for function templates. */
2714 #define DECL_TEMPLATE_INSTANTIATIONS(NODE) DECL_VINDEX (NODE)
2715 /* For a function template, the DECL_TEMPLATE_SPECIALIZATIONS lists
2716 contains all instantiations and specializations of the function,
2717 including partial instantiations. For a partial instantiation
2718 which is a specialization, this list holds only full
2719 specializations of the template that are instantiations of the
2720 partial instantiation. For example, given:
2722 template <class T> struct S {
2723 template <class U> void f(U);
2724 template <> void f(T);
2727 the `S<int>::f<int>(int)' function will appear on the
2728 DECL_TEMPLATE_SPECIALIZATIONS list for both `template <class T>
2729 template <class U> void S<T>::f(U)' and `template <class T> void
2730 S<int>::f(T)'. In the latter case, however, it will have only the
2731 innermost set of arguments (T, in this case). The DECL_TI_TEMPLATE
2732 for the function declaration will point at the specialization, not
2733 the fully general template.
2735 For a class template, this list contains the partial
2736 specializations of this template. (Full specializations are not
2737 recorded on this list.) The TREE_PURPOSE holds the arguments used
2738 in the partial specialization (e.g., for `template <class T> struct
2739 S<T*, int>' this will be `T*'.) The arguments will also include
2740 any outer template arguments. The TREE_VALUE holds the innermost
2741 template parameters for the specialization (e.g., `T' in the
2742 example above.) The TREE_TYPE is the _TYPE node for the partial
2743 specialization.
2745 This list is not used for static variable templates. */
2746 #define DECL_TEMPLATE_SPECIALIZATIONS(NODE) DECL_SIZE (NODE)
2748 /* Nonzero for a DECL which is actually a template parameter. Keep
2749 these checks in ascending tree code order. */
2750 #define DECL_TEMPLATE_PARM_P(NODE) \
2751 (DECL_LANG_FLAG_0 (NODE) \
2752 && (TREE_CODE (NODE) == CONST_DECL \
2753 || TREE_CODE (NODE) == PARM_DECL \
2754 || TREE_CODE (NODE) == TYPE_DECL \
2755 || TREE_CODE (NODE) == TEMPLATE_DECL))
2757 /* Mark NODE as a template parameter. */
2758 #define SET_DECL_TEMPLATE_PARM_P(NODE) \
2759 (DECL_LANG_FLAG_0 (NODE) = 1)
2761 /* Nonzero if NODE is a template template parameter. */
2762 #define DECL_TEMPLATE_TEMPLATE_PARM_P(NODE) \
2763 (TREE_CODE (NODE) == TEMPLATE_DECL && DECL_TEMPLATE_PARM_P (NODE))
2765 /* Nonzero if NODE is a TEMPLATE_DECL representing an
2766 UNBOUND_CLASS_TEMPLATE tree node. */
2767 #define DECL_UNBOUND_CLASS_TEMPLATE_P(NODE) \
2768 (TREE_CODE (NODE) == TEMPLATE_DECL && !DECL_TEMPLATE_RESULT (NODE))
2770 #define DECL_FUNCTION_TEMPLATE_P(NODE) \
2771 (TREE_CODE (NODE) == TEMPLATE_DECL \
2772 && !DECL_UNBOUND_CLASS_TEMPLATE_P (NODE) \
2773 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == FUNCTION_DECL)
2775 /* Nonzero for a DECL that represents a template class. */
2776 #define DECL_CLASS_TEMPLATE_P(NODE) \
2777 (TREE_CODE (NODE) == TEMPLATE_DECL \
2778 && !DECL_UNBOUND_CLASS_TEMPLATE_P (NODE) \
2779 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == TYPE_DECL \
2780 && !DECL_TEMPLATE_TEMPLATE_PARM_P (NODE))
2782 /* Nonzero if NODE which declares a type. */
2783 #define DECL_DECLARES_TYPE_P(NODE) \
2784 (TREE_CODE (NODE) == TYPE_DECL || DECL_CLASS_TEMPLATE_P (NODE))
2786 /* Nonzero if NODE is the typedef implicitly generated for a type when
2787 the type is declared. In C++, `struct S {};' is roughly
2788 equivalent to `struct S {}; typedef struct S S;' in C.
2789 DECL_IMPLICIT_TYPEDEF_P will hold for the typedef indicated in this
2790 example. In C++, there is a second implicit typedef for each
2791 class, in the scope of `S' itself, so that you can say `S::S'.
2792 DECL_SELF_REFERENCE_P will hold for that second typedef. */
2793 #define DECL_IMPLICIT_TYPEDEF_P(NODE) \
2794 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_2 (NODE))
2795 #define SET_DECL_IMPLICIT_TYPEDEF_P(NODE) \
2796 (DECL_LANG_FLAG_2 (NODE) = 1)
2797 #define DECL_SELF_REFERENCE_P(NODE) \
2798 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_4 (NODE))
2799 #define SET_DECL_SELF_REFERENCE_P(NODE) \
2800 (DECL_LANG_FLAG_4 (NODE) = 1)
2802 /* A `primary' template is one that has its own template header. A
2803 member function of a class template is a template, but not primary.
2804 A member template is primary. Friend templates are primary, too. */
2806 /* Returns the primary template corresponding to these parameters. */
2807 #define DECL_PRIMARY_TEMPLATE(NODE) \
2808 (TREE_TYPE (DECL_INNERMOST_TEMPLATE_PARMS (NODE)))
2810 /* Returns nonzero if NODE is a primary template. */
2811 #define PRIMARY_TEMPLATE_P(NODE) (DECL_PRIMARY_TEMPLATE (NODE) == (NODE))
2813 /* Indicates whether or not (and how) a template was expanded for this
2814 FUNCTION_DECL or VAR_DECL.
2815 0=normal declaration, e.g. int min (int, int);
2816 1=implicit template instantiation
2817 2=explicit template specialization, e.g. int min<int> (int, int);
2818 3=explicit template instantiation, e.g. template int min<int> (int, int);
2820 If DECL_USE_TEMPLATE is nonzero, then DECL_TEMPLATE_INFO will also
2821 be non-NULL. */
2822 #define DECL_USE_TEMPLATE(NODE) (DECL_LANG_SPECIFIC (NODE)->decl_flags.use_template)
2824 #define DECL_TEMPLATE_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) & 1)
2825 #define CLASSTYPE_TEMPLATE_INSTANTIATION(NODE) \
2826 (CLASSTYPE_USE_TEMPLATE (NODE) & 1)
2828 #define DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) == 2)
2829 #define SET_DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) = 2)
2831 /* Returns true for an explicit or partial specialization of a class
2832 template. */
2833 #define CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
2834 (CLASSTYPE_USE_TEMPLATE (NODE) == 2)
2835 #define SET_CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
2836 (CLASSTYPE_USE_TEMPLATE (NODE) = 2)
2838 #define DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 1)
2839 #define SET_DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 1)
2840 #define CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
2841 (CLASSTYPE_USE_TEMPLATE (NODE) == 1)
2842 #define SET_CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
2843 (CLASSTYPE_USE_TEMPLATE (NODE) = 1)
2845 #define DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 3)
2846 #define SET_DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 3)
2847 #define CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
2848 (CLASSTYPE_USE_TEMPLATE (NODE) == 3)
2849 #define SET_CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
2850 (CLASSTYPE_USE_TEMPLATE (NODE) = 3)
2852 /* Nonzero if DECL is a friend function which is an instantiation
2853 from the point of view of the compiler, but not from the point of
2854 view of the language. For example given:
2855 template <class T> struct S { friend void f(T) {}; };
2856 the declaration of `void f(int)' generated when S<int> is
2857 instantiated will not be a DECL_TEMPLATE_INSTANTIATION, but will be
2858 a DECL_FRIEND_PSUEDO_TEMPLATE_INSTANTIATION. */
2859 #define DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION(DECL) \
2860 (DECL_TEMPLATE_INFO (DECL) && !DECL_USE_TEMPLATE (DECL))
2862 /* Nonzero iff we are currently processing a declaration for an
2863 entity with its own template parameter list, and which is not a
2864 full specialization. */
2865 #define PROCESSING_REAL_TEMPLATE_DECL_P() \
2866 (processing_template_decl > template_class_depth (current_scope ()))
2868 /* Nonzero if this VAR_DECL or FUNCTION_DECL has already been
2869 instantiated, i.e. its definition has been generated from the
2870 pattern given in the template. */
2871 #define DECL_TEMPLATE_INSTANTIATED(NODE) \
2872 DECL_LANG_FLAG_1 (VAR_OR_FUNCTION_DECL_CHECK (NODE))
2874 /* We know what we're doing with this decl now. */
2875 #define DECL_INTERFACE_KNOWN(NODE) DECL_LANG_FLAG_5 (NODE)
2877 /* DECL_EXTERNAL must be set on a decl until the decl is actually emitted,
2878 so that assemble_external will work properly. So we have this flag to
2879 tell us whether the decl is really not external. */
2880 #define DECL_NOT_REALLY_EXTERN(NODE) \
2881 (DECL_LANG_SPECIFIC (NODE)->decl_flags.not_really_extern)
2883 #define DECL_REALLY_EXTERN(NODE) \
2884 (DECL_EXTERNAL (NODE) && ! DECL_NOT_REALLY_EXTERN (NODE))
2886 /* A thunk is a stub function.
2888 A thunk is an alternate entry point for an ordinary FUNCTION_DECL.
2889 The address of the ordinary FUNCTION_DECL is given by the
2890 DECL_INITIAL, which is always an ADDR_EXPR whose operand is a
2891 FUNCTION_DECL. The job of the thunk is to either adjust the this
2892 pointer before transferring control to the FUNCTION_DECL, or call
2893 FUNCTION_DECL and then adjust the result value. Note, the result
2894 pointer adjusting thunk must perform a call to the thunked
2895 function, (or be implemented via passing some invisible parameter
2896 to the thunked function, which is modified to perform the
2897 adjustment just before returning).
2899 A thunk may perform either, or both, of the following operations:
2901 o Adjust the this or result pointer by a constant offset.
2902 o Adjust the this or result pointer by looking up a vcall or vbase offset
2903 in the vtable.
2905 A this pointer adjusting thunk converts from a base to a derived
2906 class, and hence adds the offsets. A result pointer adjusting thunk
2907 converts from a derived class to a base, and hence subtracts the
2908 offsets. If both operations are performed, then the constant
2909 adjustment is performed first for this pointer adjustment and last
2910 for the result pointer adjustment.
2912 The constant adjustment is given by THUNK_FIXED_OFFSET. If the
2913 vcall or vbase offset is required, THUNK_VIRTUAL_OFFSET is
2914 used. For this pointer adjusting thunks, it is the vcall offset
2915 into the vtable. For result pointer adjusting thunks it is the
2916 binfo of the virtual base to convert to. Use that binfo's vbase
2917 offset.
2919 It is possible to have equivalent covariant thunks. These are
2920 distinct virtual covariant thunks whose vbase offsets happen to
2921 have the same value. THUNK_ALIAS is used to pick one as the
2922 canonical thunk, which will get all the this pointer adjusting
2923 thunks attached to it. */
2925 /* An integer indicating how many bytes should be subtracted from the
2926 this or result pointer when this function is called. */
2927 #define THUNK_FIXED_OFFSET(DECL) \
2928 (DECL_LANG_SPECIFIC (THUNK_FUNCTION_CHECK (DECL))->u.f.u5.fixed_offset)
2930 /* A tree indicating how to perform the virtual adjustment. For a this
2931 adjusting thunk it is the number of bytes to be added to the vtable
2932 to find the vcall offset. For a result adjusting thunk, it is the
2933 binfo of the relevant virtual base. If NULL, then there is no
2934 virtual adjust. (The vptr is always located at offset zero from
2935 the this or result pointer.) (If the covariant type is within the
2936 class hierarchy being laid out, the vbase index is not yet known
2937 at the point we need to create the thunks, hence the need to use
2938 binfos.) */
2940 #define THUNK_VIRTUAL_OFFSET(DECL) \
2941 (LANG_DECL_U2_CHECK (FUNCTION_DECL_CHECK (DECL), 0)->access)
2943 /* A thunk which is equivalent to another thunk. */
2944 #define THUNK_ALIAS(DECL) \
2945 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->decl_flags.u.template_info)
2947 /* For thunk NODE, this is the FUNCTION_DECL thunked to. It is
2948 possible for the target to be a thunk too. */
2949 #define THUNK_TARGET(NODE) \
2950 (DECL_LANG_SPECIFIC (NODE)->u.f.befriending_classes)
2952 /* True for a SCOPE_REF iff the "template" keyword was used to
2953 indicate that the qualified name denotes a template. */
2954 #define QUALIFIED_NAME_IS_TEMPLATE(NODE) \
2955 (TREE_LANG_FLAG_0 (SCOPE_REF_CHECK (NODE)))
2957 /* True for an OMP_ATOMIC that has dependent parameters. These are stored
2958 as bare LHS/RHS, and not as ADDR/RHS, as in the generic statement. */
2959 #define OMP_ATOMIC_DEPENDENT_P(NODE) \
2960 (TREE_LANG_FLAG_0 (OMP_ATOMIC_CHECK (NODE)))
2962 /* Used to store the operation code when OMP_ATOMIC_DEPENDENT_P is set. */
2963 #define OMP_ATOMIC_CODE(NODE) \
2964 (OMP_ATOMIC_CHECK (NODE)->exp.complexity)
2966 /* Used while gimplifying continue statements bound to OMP_FOR nodes. */
2967 #define OMP_FOR_GIMPLIFYING_P(NODE) \
2968 (TREE_LANG_FLAG_0 (OMP_FOR_CHECK (NODE)))
2970 /* A language-specific token attached to the OpenMP data clauses to
2971 hold code (or code fragments) related to ctors, dtors, and op=.
2972 See semantics.c for details. */
2973 #define CP_OMP_CLAUSE_INFO(NODE) \
2974 TREE_TYPE (OMP_CLAUSE_RANGE_CHECK (NODE, OMP_CLAUSE_PRIVATE, \
2975 OMP_CLAUSE_COPYPRIVATE))
2977 /* These macros provide convenient access to the various _STMT nodes
2978 created when parsing template declarations. */
2979 #define TRY_STMTS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 0)
2980 #define TRY_HANDLERS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 1)
2982 #define EH_SPEC_STMTS(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 0)
2983 #define EH_SPEC_RAISES(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 1)
2985 #define USING_STMT_NAMESPACE(NODE) TREE_OPERAND (USING_STMT_CHECK (NODE), 0)
2987 /* Nonzero if this try block is a function try block. */
2988 #define FN_TRY_BLOCK_P(NODE) TREE_LANG_FLAG_3 (TRY_BLOCK_CHECK (NODE))
2989 #define HANDLER_PARMS(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 0)
2990 #define HANDLER_BODY(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 1)
2991 #define HANDLER_TYPE(NODE) TREE_TYPE (HANDLER_CHECK (NODE))
2993 /* CLEANUP_STMT accessors. The statement(s) covered, the cleanup to run
2994 and the VAR_DECL for which this cleanup exists. */
2995 #define CLEANUP_BODY(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 0)
2996 #define CLEANUP_EXPR(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 1)
2997 #define CLEANUP_DECL(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 2)
2999 /* IF_STMT accessors. These give access to the condition of the if
3000 statement, the then block of the if statement, and the else block
3001 of the if statement if it exists. */
3002 #define IF_COND(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 0)
3003 #define THEN_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 1)
3004 #define ELSE_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 2)
3006 /* WHILE_STMT accessors. These give access to the condition of the
3007 while statement and the body of the while statement, respectively. */
3008 #define WHILE_COND(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 0)
3009 #define WHILE_BODY(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 1)
3011 /* DO_STMT accessors. These give access to the condition of the do
3012 statement and the body of the do statement, respectively. */
3013 #define DO_COND(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 0)
3014 #define DO_BODY(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 1)
3016 /* FOR_STMT accessors. These give access to the init statement,
3017 condition, update expression, and body of the for statement,
3018 respectively. */
3019 #define FOR_INIT_STMT(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 0)
3020 #define FOR_COND(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 1)
3021 #define FOR_EXPR(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 2)
3022 #define FOR_BODY(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 3)
3024 #define SWITCH_STMT_COND(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 0)
3025 #define SWITCH_STMT_BODY(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 1)
3026 #define SWITCH_STMT_TYPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 2)
3028 /* STMT_EXPR accessor. */
3029 #define STMT_EXPR_STMT(NODE) TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0)
3031 /* EXPR_STMT accessor. This gives the expression associated with an
3032 expression statement. */
3033 #define EXPR_STMT_EXPR(NODE) TREE_OPERAND (EXPR_STMT_CHECK (NODE), 0)
3035 /* An enumeration of the kind of tags that C++ accepts. */
3036 enum tag_types {
3037 none_type = 0, /* Not a tag type. */
3038 record_type, /* "struct" types. */
3039 class_type, /* "class" types. */
3040 union_type, /* "union" types. */
3041 enum_type, /* "enum" types. */
3042 typename_type /* "typename" types. */
3045 /* The various kinds of lvalues we distinguish. */
3046 typedef enum cp_lvalue_kind {
3047 clk_none = 0, /* Things that are not an lvalue. */
3048 clk_ordinary = 1, /* An ordinary lvalue. */
3049 clk_class = 2, /* An rvalue of class-type. */
3050 clk_bitfield = 4, /* An lvalue for a bit-field. */
3051 clk_packed = 8 /* An lvalue for a packed field. */
3052 } cp_lvalue_kind;
3054 /* Various kinds of template specialization, instantiation, etc. */
3055 typedef enum tmpl_spec_kind {
3056 tsk_none, /* Not a template at all. */
3057 tsk_invalid_member_spec, /* An explicit member template
3058 specialization, but the enclosing
3059 classes have not all been explicitly
3060 specialized. */
3061 tsk_invalid_expl_inst, /* An explicit instantiation containing
3062 template parameter lists. */
3063 tsk_excessive_parms, /* A template declaration with too many
3064 template parameter lists. */
3065 tsk_insufficient_parms, /* A template declaration with too few
3066 parameter lists. */
3067 tsk_template, /* A template declaration. */
3068 tsk_expl_spec, /* An explicit specialization. */
3069 tsk_expl_inst /* An explicit instantiation. */
3070 } tmpl_spec_kind;
3072 /* The various kinds of access. BINFO_ACCESS depends on these being
3073 two bit quantities. The numerical values are important; they are
3074 used to initialize RTTI data structures, so changing them changes
3075 the ABI. */
3076 typedef enum access_kind {
3077 ak_none = 0, /* Inaccessible. */
3078 ak_public = 1, /* Accessible, as a `public' thing. */
3079 ak_protected = 2, /* Accessible, as a `protected' thing. */
3080 ak_private = 3 /* Accessible, as a `private' thing. */
3081 } access_kind;
3083 /* The various kinds of special functions. If you add to this list,
3084 you should update special_function_p as well. */
3085 typedef enum special_function_kind {
3086 sfk_none = 0, /* Not a special function. This enumeral
3087 must have value zero; see
3088 special_function_p. */
3089 sfk_constructor, /* A constructor. */
3090 sfk_copy_constructor, /* A copy constructor. */
3091 sfk_assignment_operator, /* An assignment operator. */
3092 sfk_destructor, /* A destructor. */
3093 sfk_complete_destructor, /* A destructor for complete objects. */
3094 sfk_base_destructor, /* A destructor for base subobjects. */
3095 sfk_deleting_destructor, /* A destructor for complete objects that
3096 deletes the object after it has been
3097 destroyed. */
3098 sfk_conversion /* A conversion operator. */
3099 } special_function_kind;
3101 /* The various kinds of linkage. From [basic.link],
3103 A name is said to have linkage when it might denote the same
3104 object, reference, function, type, template, namespace or value
3105 as a name introduced in another scope:
3107 -- When a name has external linkage, the entity it denotes can
3108 be referred to from scopes of other translation units or from
3109 other scopes of the same translation unit.
3111 -- When a name has internal linkage, the entity it denotes can
3112 be referred to by names from other scopes in the same
3113 translation unit.
3115 -- When a name has no linkage, the entity it denotes cannot be
3116 referred to by names from other scopes. */
3118 typedef enum linkage_kind {
3119 lk_none, /* No linkage. */
3120 lk_internal, /* Internal linkage. */
3121 lk_external /* External linkage. */
3122 } linkage_kind;
3124 /* Bitmask flags to control type substitution. */
3125 typedef enum tsubst_flags_t {
3126 tf_none = 0, /* nothing special */
3127 tf_error = 1 << 0, /* give error messages */
3128 tf_warning = 1 << 1, /* give warnings too */
3129 tf_ignore_bad_quals = 1 << 2, /* ignore bad cvr qualifiers */
3130 tf_keep_type_decl = 1 << 3, /* retain typedef type decls
3131 (make_typename_type use) */
3132 tf_ptrmem_ok = 1 << 4, /* pointers to member ok (internal
3133 instantiate_type use) */
3134 tf_user = 1 << 5, /* found template must be a user template
3135 (lookup_template_class use) */
3136 tf_conv = 1 << 6, /* We are determining what kind of
3137 conversion might be permissible,
3138 not actually performing the
3139 conversion. */
3140 /* Convenient substitution flags combinations. */
3141 tf_warning_or_error = tf_warning | tf_error
3142 } tsubst_flags_t;
3144 /* The kind of checking we can do looking in a class hierarchy. */
3145 typedef enum base_access {
3146 ba_any = 0, /* Do not check access, allow an ambiguous base,
3147 prefer a non-virtual base */
3148 ba_unique = 1 << 0, /* Must be a unique base. */
3149 ba_check_bit = 1 << 1, /* Check access. */
3150 ba_check = ba_unique | ba_check_bit,
3151 ba_ignore_scope = 1 << 2, /* Ignore access allowed by local scope. */
3152 ba_quiet = 1 << 3 /* Do not issue error messages. */
3153 } base_access;
3155 /* The various kinds of access check during parsing. */
3156 typedef enum deferring_kind {
3157 dk_no_deferred = 0, /* Check access immediately */
3158 dk_deferred = 1, /* Deferred check */
3159 dk_no_check = 2 /* No access check */
3160 } deferring_kind;
3162 /* The kind of base we can find, looking in a class hierarchy.
3163 Values <0 indicate we failed. */
3164 typedef enum base_kind {
3165 bk_inaccessible = -3, /* The base is inaccessible */
3166 bk_ambig = -2, /* The base is ambiguous */
3167 bk_not_base = -1, /* It is not a base */
3168 bk_same_type = 0, /* It is the same type */
3169 bk_proper_base = 1, /* It is a proper base */
3170 bk_via_virtual = 2 /* It is a proper base, but via a virtual
3171 path. This might not be the canonical
3172 binfo. */
3173 } base_kind;
3175 /* in decl{2}.c */
3176 /* A node that is a list (length 1) of error_mark_nodes. */
3177 extern GTY(()) tree error_mark_list;
3179 /* Node for "pointer to (virtual) function".
3180 This may be distinct from ptr_type_node so gdb can distinguish them. */
3181 #define vfunc_ptr_type_node vtable_entry_type
3184 /* For building calls to `delete'. */
3185 extern GTY(()) tree integer_two_node;
3186 extern GTY(()) tree integer_three_node;
3188 /* The number of function bodies which we are currently processing.
3189 (Zero if we are at namespace scope, one inside the body of a
3190 function, two inside the body of a function in a local class, etc.) */
3191 extern int function_depth;
3193 /* in pt.c */
3195 /* These values are used for the `STRICT' parameter to type_unification and
3196 fn_type_unification. Their meanings are described with the
3197 documentation for fn_type_unification. */
3199 typedef enum unification_kind_t {
3200 DEDUCE_CALL,
3201 DEDUCE_CONV,
3202 DEDUCE_EXACT
3203 } unification_kind_t;
3205 /* Macros for operating on a template instantiation level node. */
3207 #define TINST_DECL(NODE) \
3208 (((tinst_level_t) TINST_LEVEL_CHECK (NODE))->decl)
3209 #define TINST_LOCATION(NODE) \
3210 (((tinst_level_t) TINST_LEVEL_CHECK (NODE))->locus)
3211 #define TINST_IN_SYSTEM_HEADER_P(NODE) \
3212 (((tinst_level_t) TINST_LEVEL_CHECK (NODE))->in_system_header_p)
3214 /* in class.c */
3216 extern int current_class_depth;
3218 /* An array of all local classes present in this translation unit, in
3219 declaration order. */
3220 extern GTY(()) VEC(tree,gc) *local_classes;
3222 /* Here's where we control how name mangling takes place. */
3224 /* Cannot use '$' up front, because this confuses gdb
3225 (names beginning with '$' are gdb-local identifiers).
3227 Note that all forms in which the '$' is significant are long enough
3228 for direct indexing (meaning that if we know there is a '$'
3229 at a particular location, we can index into the string at
3230 any other location that provides distinguishing characters). */
3232 /* Define NO_DOLLAR_IN_LABEL in your favorite tm file if your assembler
3233 doesn't allow '$' in symbol names. */
3234 #ifndef NO_DOLLAR_IN_LABEL
3236 #define JOINER '$'
3238 #define AUTO_TEMP_NAME "_$tmp_"
3239 #define VFIELD_BASE "$vf"
3240 #define VFIELD_NAME "_vptr$"
3241 #define VFIELD_NAME_FORMAT "_vptr$%s"
3242 #define ANON_AGGRNAME_FORMAT "$_%d"
3244 #else /* NO_DOLLAR_IN_LABEL */
3246 #ifndef NO_DOT_IN_LABEL
3248 #define JOINER '.'
3250 #define AUTO_TEMP_NAME "_.tmp_"
3251 #define VFIELD_BASE ".vf"
3252 #define VFIELD_NAME "_vptr."
3253 #define VFIELD_NAME_FORMAT "_vptr.%s"
3255 #define ANON_AGGRNAME_FORMAT "._%d"
3257 #else /* NO_DOT_IN_LABEL */
3259 #define IN_CHARGE_NAME "__in_chrg"
3260 #define AUTO_TEMP_NAME "__tmp_"
3261 #define TEMP_NAME_P(ID_NODE) \
3262 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, \
3263 sizeof (AUTO_TEMP_NAME) - 1))
3264 #define VTABLE_NAME "__vt_"
3265 #define VTABLE_NAME_P(ID_NODE) \
3266 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VTABLE_NAME, \
3267 sizeof (VTABLE_NAME) - 1))
3268 #define VFIELD_BASE "__vfb"
3269 #define VFIELD_NAME "__vptr_"
3270 #define VFIELD_NAME_P(ID_NODE) \
3271 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, \
3272 sizeof (VFIELD_NAME) - 1))
3273 #define VFIELD_NAME_FORMAT "__vptr_%s"
3275 #define ANON_AGGRNAME_PREFIX "__anon_"
3276 #define ANON_AGGRNAME_P(ID_NODE) \
3277 (!strncmp (IDENTIFIER_POINTER (ID_NODE), ANON_AGGRNAME_PREFIX, \
3278 sizeof (ANON_AGGRNAME_PREFIX) - 1))
3279 #define ANON_AGGRNAME_FORMAT "__anon_%d"
3281 #endif /* NO_DOT_IN_LABEL */
3282 #endif /* NO_DOLLAR_IN_LABEL */
3284 #define THIS_NAME "this"
3286 #define IN_CHARGE_NAME "__in_chrg"
3288 #define VTBL_PTR_TYPE "__vtbl_ptr_type"
3289 #define VTABLE_DELTA_NAME "__delta"
3290 #define VTABLE_PFN_NAME "__pfn"
3292 #if !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL)
3294 #define VTABLE_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == 'v' \
3295 && IDENTIFIER_POINTER (ID_NODE)[2] == 't' \
3296 && IDENTIFIER_POINTER (ID_NODE)[3] == JOINER)
3298 #define TEMP_NAME_P(ID_NODE) \
3299 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, sizeof (AUTO_TEMP_NAME)-1))
3300 #define VFIELD_NAME_P(ID_NODE) \
3301 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, sizeof(VFIELD_NAME)-1))
3303 /* For anonymous aggregate types, we need some sort of name to
3304 hold on to. In practice, this should not appear, but it should
3305 not be harmful if it does. */
3306 #define ANON_AGGRNAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[0] == JOINER \
3307 && IDENTIFIER_POINTER (ID_NODE)[1] == '_')
3308 #endif /* !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) */
3311 /* Nonzero if we're done parsing and into end-of-file activities. */
3313 extern int at_eof;
3315 /* A list of namespace-scope objects which have constructors or
3316 destructors which reside in the global scope. The decl is stored
3317 in the TREE_VALUE slot and the initializer is stored in the
3318 TREE_PURPOSE slot. */
3319 extern GTY(()) tree static_aggregates;
3321 /* Functions called along with real static constructors and destructors. */
3323 extern GTY(()) tree static_ctors;
3324 extern GTY(()) tree static_dtors;
3326 enum overload_flags { NO_SPECIAL = 0, DTOR_FLAG, OP_FLAG, TYPENAME_FLAG };
3328 /* These are uses as bits in flags passed to build_new_method_call
3329 to control its error reporting behavior.
3331 LOOKUP_PROTECT means flag access violations.
3332 LOOKUP_COMPLAIN mean complain if no suitable member function
3333 matching the arguments is found.
3334 LOOKUP_NORMAL is just a combination of these two.
3335 LOOKUP_NONVIRTUAL means make a direct call to the member function found
3336 LOOKUP_ONLYCONVERTING means that non-conversion constructors are not tried.
3337 DIRECT_BIND means that if a temporary is created, it should be created so
3338 that it lives as long as the current variable bindings; otherwise it
3339 only lives until the end of the complete-expression. It also forces
3340 direct-initialization in cases where other parts of the compiler have
3341 already generated a temporary, such as reference initialization and the
3342 catch parameter.
3343 LOOKUP_NO_CONVERSION means that user-defined conversions are not
3344 permitted. Built-in conversions are permitted.
3345 LOOKUP_DESTRUCTOR means explicit call to destructor.
3346 LOOKUP_NO_TEMP_BIND means temporaries will not be bound to references.
3348 These are used in global lookup to support elaborated types and
3349 qualifiers.
3351 LOOKUP_PREFER_TYPES means not to accept objects, and possibly namespaces.
3352 LOOKUP_PREFER_NAMESPACES means not to accept objects, and possibly types.
3353 LOOKUP_PREFER_BOTH means class-or-namespace-name. */
3355 #define LOOKUP_PROTECT (1 << 0)
3356 #define LOOKUP_COMPLAIN (1 << 1)
3357 #define LOOKUP_NORMAL (LOOKUP_PROTECT | LOOKUP_COMPLAIN)
3358 #define LOOKUP_NONVIRTUAL (1 << 2)
3359 #define LOOKUP_ONLYCONVERTING (1 << 3)
3360 #define DIRECT_BIND (1 << 4)
3361 #define LOOKUP_NO_CONVERSION (1 << 5)
3362 #define LOOKUP_DESTRUCTOR (1 << 6)
3363 #define LOOKUP_NO_TEMP_BIND (1 << 7)
3364 #define LOOKUP_PREFER_TYPES (1 << 8)
3365 #define LOOKUP_PREFER_NAMESPACES (1 << 9)
3366 #define LOOKUP_PREFER_BOTH (LOOKUP_PREFER_TYPES | LOOKUP_PREFER_NAMESPACES)
3367 #define LOOKUP_CONSTRUCTOR_CALLABLE (1 << 10)
3369 #define LOOKUP_NAMESPACES_ONLY(F) \
3370 (((F) & LOOKUP_PREFER_NAMESPACES) && !((F) & LOOKUP_PREFER_TYPES))
3371 #define LOOKUP_TYPES_ONLY(F) \
3372 (!((F) & LOOKUP_PREFER_NAMESPACES) && ((F) & LOOKUP_PREFER_TYPES))
3373 #define LOOKUP_QUALIFIERS_ONLY(F) ((F) & LOOKUP_PREFER_BOTH)
3376 /* These flags are used by the conversion code.
3377 CONV_IMPLICIT : Perform implicit conversions (standard and user-defined).
3378 CONV_STATIC : Perform the explicit conversions for static_cast.
3379 CONV_CONST : Perform the explicit conversions for const_cast.
3380 CONV_REINTERPRET: Perform the explicit conversions for reinterpret_cast.
3381 CONV_PRIVATE : Perform upcasts to private bases.
3382 CONV_FORCE_TEMP : Require a new temporary when converting to the same
3383 aggregate type. */
3385 #define CONV_IMPLICIT 1
3386 #define CONV_STATIC 2
3387 #define CONV_CONST 4
3388 #define CONV_REINTERPRET 8
3389 #define CONV_PRIVATE 16
3390 /* #define CONV_NONCONVERTING 32 */
3391 #define CONV_FORCE_TEMP 64
3392 #define CONV_OLD_CONVERT (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
3393 | CONV_REINTERPRET)
3394 #define CONV_C_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
3395 | CONV_REINTERPRET | CONV_PRIVATE | CONV_FORCE_TEMP)
3397 /* Used by build_expr_type_conversion to indicate which types are
3398 acceptable as arguments to the expression under consideration. */
3400 #define WANT_INT 1 /* integer types, including bool */
3401 #define WANT_FLOAT 2 /* floating point types */
3402 #define WANT_ENUM 4 /* enumerated types */
3403 #define WANT_POINTER 8 /* pointer types */
3404 #define WANT_NULL 16 /* null pointer constant */
3405 #define WANT_ARITH (WANT_INT | WANT_FLOAT)
3407 /* Used with comptypes, and related functions, to guide type
3408 comparison. */
3410 #define COMPARE_STRICT 0 /* Just check if the types are the
3411 same. */
3412 #define COMPARE_BASE 1 /* Check to see if the second type is
3413 derived from the first. */
3414 #define COMPARE_DERIVED 2 /* Like COMPARE_BASE, but in
3415 reverse. */
3416 #define COMPARE_REDECLARATION 4 /* The comparison is being done when
3417 another declaration of an existing
3418 entity is seen. */
3420 /* Used with push_overloaded_decl. */
3421 #define PUSH_GLOBAL 0 /* Push the DECL into namespace scope,
3422 regardless of the current scope. */
3423 #define PUSH_LOCAL 1 /* Push the DECL into the current
3424 scope. */
3425 #define PUSH_USING 2 /* We are pushing this DECL as the
3426 result of a using declaration. */
3428 /* Used with start function. */
3429 #define SF_DEFAULT 0 /* No flags. */
3430 #define SF_PRE_PARSED 1 /* The function declaration has
3431 already been parsed. */
3432 #define SF_INCLASS_INLINE 2 /* The function is an inline, defined
3433 in the class body. */
3435 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, or if TYPE2
3436 is derived from TYPE1, or if TYPE2 is a pointer (reference) to a
3437 class derived from the type pointed to (referred to) by TYPE1. */
3438 #define same_or_base_type_p(TYPE1, TYPE2) \
3439 comptypes ((TYPE1), (TYPE2), COMPARE_BASE)
3441 /* These macros are used to access a TEMPLATE_PARM_INDEX. */
3442 #define TEMPLATE_PARM_INDEX_CAST(NODE) \
3443 ((template_parm_index*)TEMPLATE_PARM_INDEX_CHECK (NODE))
3444 #define TEMPLATE_PARM_IDX(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->index)
3445 #define TEMPLATE_PARM_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->level)
3446 #define TEMPLATE_PARM_DESCENDANTS(NODE) (TREE_CHAIN (NODE))
3447 #define TEMPLATE_PARM_ORIG_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->orig_level)
3448 #define TEMPLATE_PARM_DECL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->decl)
3450 /* These macros are for accessing the fields of TEMPLATE_TYPE_PARM,
3451 TEMPLATE_TEMPLATE_PARM and BOUND_TEMPLATE_TEMPLATE_PARM nodes. */
3452 #define TEMPLATE_TYPE_PARM_INDEX(NODE) \
3453 (TREE_CHECK3 ((NODE), TEMPLATE_TYPE_PARM, TEMPLATE_TEMPLATE_PARM, \
3454 BOUND_TEMPLATE_TEMPLATE_PARM))->type.values
3455 #define TEMPLATE_TYPE_IDX(NODE) \
3456 (TEMPLATE_PARM_IDX (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3457 #define TEMPLATE_TYPE_LEVEL(NODE) \
3458 (TEMPLATE_PARM_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3459 #define TEMPLATE_TYPE_ORIG_LEVEL(NODE) \
3460 (TEMPLATE_PARM_ORIG_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3461 #define TEMPLATE_TYPE_DECL(NODE) \
3462 (TEMPLATE_PARM_DECL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3464 /* These constants can used as bit flags in the process of tree formatting.
3466 TFF_PLAIN_IDENTIFIER: unqualified part of a name.
3467 TFF_SCOPE: include the class and namespace scope of the name.
3468 TFF_CHASE_TYPEDEF: print the original type-id instead of the typedef-name.
3469 TFF_DECL_SPECIFIERS: print decl-specifiers.
3470 TFF_CLASS_KEY_OR_ENUM: precede a class-type name (resp. enum name) with
3471 a class-key (resp. `enum').
3472 TFF_RETURN_TYPE: include function return type.
3473 TFF_FUNCTION_DEFAULT_ARGUMENTS: include function default parameter values.
3474 TFF_EXCEPTION_SPECIFICATION: show function exception specification.
3475 TFF_TEMPLATE_HEADER: show the template<...> header in a
3476 template-declaration.
3477 TFF_TEMPLATE_NAME: show only template-name.
3478 TFF_EXPR_IN_PARENS: parenthesize expressions.
3479 TFF_NO_FUNCTION_ARGUMENTS: don't show function arguments. */
3481 #define TFF_PLAIN_IDENTIFIER (0)
3482 #define TFF_SCOPE (1)
3483 #define TFF_CHASE_TYPEDEF (1 << 1)
3484 #define TFF_DECL_SPECIFIERS (1 << 2)
3485 #define TFF_CLASS_KEY_OR_ENUM (1 << 3)
3486 #define TFF_RETURN_TYPE (1 << 4)
3487 #define TFF_FUNCTION_DEFAULT_ARGUMENTS (1 << 5)
3488 #define TFF_EXCEPTION_SPECIFICATION (1 << 6)
3489 #define TFF_TEMPLATE_HEADER (1 << 7)
3490 #define TFF_TEMPLATE_NAME (1 << 8)
3491 #define TFF_EXPR_IN_PARENS (1 << 9)
3492 #define TFF_NO_FUNCTION_ARGUMENTS (1 << 10)
3494 /* Returns the TEMPLATE_DECL associated to a TEMPLATE_TEMPLATE_PARM
3495 node. */
3496 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_DECL(NODE) \
3497 ((TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM) \
3498 ? TYPE_TI_TEMPLATE (NODE) \
3499 : TYPE_NAME (NODE))
3501 /* in lex.c */
3503 extern void init_reswords (void);
3505 /* Indexed by TREE_CODE, these tables give C-looking names to
3506 operators represented by TREE_CODES. For example,
3507 opname_tab[(int) MINUS_EXPR] == "-". */
3508 extern const char **opname_tab, **assignop_tab;
3510 typedef struct operator_name_info_t GTY(())
3512 /* The IDENTIFIER_NODE for the operator. */
3513 tree identifier;
3514 /* The name of the operator. */
3515 const char *name;
3516 /* The mangled name of the operator. */
3517 const char *mangled_name;
3518 /* The arity of the operator. */
3519 int arity;
3520 } operator_name_info_t;
3522 /* A mapping from tree codes to operator name information. */
3523 extern GTY(()) operator_name_info_t operator_name_info
3524 [(int) LAST_CPLUS_TREE_CODE];
3525 /* Similar, but for assignment operators. */
3526 extern GTY(()) operator_name_info_t assignment_operator_name_info
3527 [(int) LAST_CPLUS_TREE_CODE];
3529 /* A type-qualifier, or bitmask therefore, using the TYPE_QUAL
3530 constants. */
3532 typedef int cp_cv_quals;
3534 /* A storage class. */
3536 typedef enum cp_storage_class {
3537 /* sc_none must be zero so that zeroing a cp_decl_specifier_seq
3538 sets the storage_class field to sc_none. */
3539 sc_none = 0,
3540 sc_auto,
3541 sc_register,
3542 sc_static,
3543 sc_extern,
3544 sc_mutable
3545 } cp_storage_class;
3547 /* An individual decl-specifier. */
3549 typedef enum cp_decl_spec {
3550 ds_first,
3551 ds_signed = ds_first,
3552 ds_unsigned,
3553 ds_short,
3554 ds_long,
3555 ds_const,
3556 ds_volatile,
3557 ds_restrict,
3558 ds_inline,
3559 ds_virtual,
3560 ds_explicit,
3561 ds_friend,
3562 ds_typedef,
3563 ds_complex,
3564 ds_thread,
3565 ds_last
3566 } cp_decl_spec;
3568 /* A decl-specifier-seq. */
3570 typedef struct cp_decl_specifier_seq {
3571 /* The number of times each of the keywords has been seen. */
3572 unsigned specs[(int) ds_last];
3573 /* The primary type, if any, given by the decl-specifier-seq.
3574 Modifiers, like "short", "const", and "unsigned" are not
3575 reflected here. This field will be a TYPE, unless a typedef-name
3576 was used, in which case it will be a TYPE_DECL. */
3577 tree type;
3578 /* The attributes, if any, provided with the specifier sequence. */
3579 tree attributes;
3580 /* If non-NULL, a built-in type that the user attempted to redefine
3581 to some other type. */
3582 tree redefined_builtin_type;
3583 /* The storage class specified -- or sc_none if no storage class was
3584 explicitly specified. */
3585 cp_storage_class storage_class;
3586 /* True iff TYPE_SPEC indicates a user-defined type. */
3587 BOOL_BITFIELD user_defined_type_p : 1;
3588 /* True iff multiple types were (erroneously) specified for this
3589 decl-specifier-seq. */
3590 BOOL_BITFIELD multiple_types_p : 1;
3591 /* True iff multiple storage classes were (erroneously) specified
3592 for this decl-specifier-seq. */
3593 BOOL_BITFIELD multiple_storage_classes_p : 1;
3594 /* True iff at least one decl-specifier was found. */
3595 BOOL_BITFIELD any_specifiers_p : 1;
3596 /* True iff "int" was explicitly provided. */
3597 BOOL_BITFIELD explicit_int_p : 1;
3598 /* True iff "char" was explicitly provided. */
3599 BOOL_BITFIELD explicit_char_p : 1;
3600 } cp_decl_specifier_seq;
3602 /* The various kinds of declarators. */
3604 typedef enum cp_declarator_kind {
3605 cdk_id,
3606 cdk_function,
3607 cdk_array,
3608 cdk_pointer,
3609 cdk_reference,
3610 cdk_ptrmem,
3611 cdk_error
3612 } cp_declarator_kind;
3614 /* A declarator. */
3616 typedef struct cp_declarator cp_declarator;
3618 typedef struct cp_parameter_declarator cp_parameter_declarator;
3620 /* A parameter, before it has been semantically analyzed. */
3621 struct cp_parameter_declarator {
3622 /* The next parameter, or NULL_TREE if none. */
3623 cp_parameter_declarator *next;
3624 /* The decl-specifiers-seq for the parameter. */
3625 cp_decl_specifier_seq decl_specifiers;
3626 /* The declarator for the parameter. */
3627 cp_declarator *declarator;
3628 /* The default-argument expression, or NULL_TREE, if none. */
3629 tree default_argument;
3630 /* True iff this is the first parameter in the list and the
3631 parameter sequence ends with an ellipsis. */
3632 bool ellipsis_p;
3635 /* A declarator. */
3636 struct cp_declarator {
3637 /* The kind of declarator. */
3638 cp_declarator_kind kind;
3639 /* Attributes that apply to this declarator. */
3640 tree attributes;
3641 /* For all but cdk_id and cdk_error, the contained declarator. For
3642 cdk_id and cdk_error, guaranteed to be NULL. */
3643 cp_declarator *declarator;
3644 location_t id_loc; /* Currently only set for cdk_id. */
3645 union {
3646 /* For identifiers. */
3647 struct {
3648 /* If non-NULL, the qualifying scope (a NAMESPACE_DECL or
3649 *_TYPE) for this identifier. */
3650 tree qualifying_scope;
3651 /* The unqualified name of the entity -- an IDENTIFIER_NODE,
3652 BIT_NOT_EXPR, or TEMPLATE_ID_EXPR. */
3653 tree unqualified_name;
3654 /* If this is the name of a function, what kind of special
3655 function (if any). */
3656 special_function_kind sfk;
3657 } id;
3658 /* For functions. */
3659 struct {
3660 /* The parameters to the function. */
3661 cp_parameter_declarator *parameters;
3662 /* The cv-qualifiers for the function. */
3663 cp_cv_quals qualifiers;
3664 /* The exception-specification for the function. */
3665 tree exception_specification;
3666 } function;
3667 /* For arrays. */
3668 struct {
3669 /* The bounds to the array. */
3670 tree bounds;
3671 } array;
3672 /* For cdk_pointer, cdk_reference, and cdk_ptrmem. */
3673 struct {
3674 /* The cv-qualifiers for the pointer. */
3675 cp_cv_quals qualifiers;
3676 /* For cdk_ptrmem, the class type containing the member. */
3677 tree class_type;
3678 } pointer;
3679 } u;
3682 /* An erroneous declarator. */
3683 extern cp_declarator *cp_error_declarator;
3685 /* A parameter list indicating for a function with no parameters,
3686 e.g "int f(void)". */
3687 extern cp_parameter_declarator *no_parameters;
3689 /* in call.c */
3690 extern bool check_dtor_name (tree, tree);
3692 extern tree build_vfield_ref (tree, tree);
3693 extern tree build_conditional_expr (tree, tree, tree);
3694 extern tree build_addr_func (tree);
3695 extern tree build_call (tree, tree);
3696 extern bool null_ptr_cst_p (tree);
3697 extern bool sufficient_parms_p (tree);
3698 extern tree type_decays_to (tree);
3699 extern tree build_user_type_conversion (tree, tree, int);
3700 extern tree build_new_function_call (tree, tree, bool);
3701 extern tree build_operator_new_call (tree, tree, tree *, tree *);
3702 extern tree build_new_method_call (tree, tree, tree, tree, int);
3703 extern tree build_special_member_call (tree, tree, tree, tree, int);
3704 extern tree build_new_op (enum tree_code, int, tree, tree, tree, bool *);
3705 extern tree build_op_delete_call (enum tree_code, tree, tree, bool, tree);
3706 extern bool can_convert (tree, tree);
3707 extern bool can_convert_arg (tree, tree, tree, int);
3708 extern bool can_convert_arg_bad (tree, tree, tree);
3709 extern bool enforce_access (tree, tree);
3710 extern tree convert_default_arg (tree, tree, tree, int);
3711 extern tree convert_arg_to_ellipsis (tree);
3712 extern tree build_x_va_arg (tree, tree);
3713 extern tree cxx_type_promotes_to (tree);
3714 extern tree type_passed_as (tree);
3715 extern tree convert_for_arg_passing (tree, tree);
3716 extern bool is_properly_derived_from (tree, tree);
3717 extern tree initialize_reference (tree, tree, tree, tree *);
3718 extern tree make_temporary_var_for_ref_to_temp (tree, tree);
3719 extern tree strip_top_quals (tree);
3720 extern tree perform_implicit_conversion (tree, tree);
3721 extern tree perform_direct_initialization_if_possible (tree, tree, bool);
3722 extern tree in_charge_arg_for_name (tree);
3723 extern tree build_cxx_call (tree, tree);
3724 #ifdef ENABLE_CHECKING
3725 extern void validate_conversion_obstack (void);
3726 #endif /* ENABLE_CHECKING */
3728 /* in class.c */
3729 extern tree build_base_path (enum tree_code, tree,
3730 tree, int);
3731 extern tree convert_to_base (tree, tree, bool, bool);
3732 extern tree convert_to_base_statically (tree, tree);
3733 extern tree build_vtbl_ref (tree, tree);
3734 extern tree build_vfn_ref (tree, tree);
3735 extern tree get_vtable_decl (tree, int);
3736 extern void resort_type_method_vec (void *, void *,
3737 gt_pointer_operator, void *);
3738 extern bool add_method (tree, tree, tree);
3739 extern int currently_open_class (tree);
3740 extern tree currently_open_derived_class (tree);
3741 extern tree finish_struct (tree, tree);
3742 extern void finish_struct_1 (tree);
3743 extern int resolves_to_fixed_type_p (tree, int *);
3744 extern void init_class_processing (void);
3745 extern int is_empty_class (tree);
3746 extern void pushclass (tree);
3747 extern void popclass (void);
3748 extern void push_nested_class (tree);
3749 extern void pop_nested_class (void);
3750 extern int current_lang_depth (void);
3751 extern void push_lang_context (tree);
3752 extern void pop_lang_context (void);
3753 extern tree instantiate_type (tree, tree, tsubst_flags_t);
3754 extern void print_class_statistics (void);
3755 extern void cxx_print_statistics (void);
3756 extern void cxx_print_xnode (FILE *, tree, int);
3757 extern void cxx_print_decl (FILE *, tree, int);
3758 extern void cxx_print_type (FILE *, tree, int);
3759 extern void cxx_print_identifier (FILE *, tree, int);
3760 extern void cxx_print_error_function (struct diagnostic_context *,
3761 const char *);
3762 extern void build_self_reference (void);
3763 extern int same_signature_p (tree, tree);
3764 extern void maybe_add_class_template_decl_list (tree, tree, int);
3765 extern void unreverse_member_declarations (tree);
3766 extern void invalidate_class_lookup_cache (void);
3767 extern void maybe_note_name_used_in_class (tree, tree);
3768 extern void note_name_declared_in_class (tree, tree);
3769 extern tree get_vtbl_decl_for_binfo (tree);
3770 extern void debug_class (tree);
3771 extern void debug_thunks (tree);
3772 extern tree cp_fold_obj_type_ref (tree, tree);
3773 extern void set_linkage_according_to_type (tree, tree);
3774 extern void determine_key_method (tree);
3775 extern void check_for_override (tree, tree);
3776 extern void push_class_stack (void);
3777 extern void pop_class_stack (void);
3779 /* in cvt.c */
3780 extern tree convert_to_reference (tree, tree, int, int, tree);
3781 extern tree convert_from_reference (tree);
3782 extern tree force_rvalue (tree);
3783 extern tree ocp_convert (tree, tree, int, int);
3784 extern tree cp_convert (tree, tree);
3785 extern tree convert_to_void (tree, const char */*implicit context*/);
3786 extern tree convert_force (tree, tree, int);
3787 extern tree build_expr_type_conversion (int, tree, bool);
3788 extern tree type_promotes_to (tree);
3789 extern tree perform_qualification_conversions (tree, tree);
3790 extern void clone_function_decl (tree, int);
3791 extern void adjust_clone_args (tree);
3793 /* decl.c */
3794 extern tree poplevel (int, int, int);
3795 extern void insert_block (tree);
3796 extern tree pushdecl (tree);
3797 extern tree pushdecl_maybe_friend (tree, bool);
3798 extern void cxx_init_decl_processing (void);
3799 enum cp_tree_node_structure_enum cp_tree_node_structure
3800 (union lang_tree_node *);
3801 extern bool cxx_mark_addressable (tree);
3802 extern void cxx_push_function_context (struct function *);
3803 extern void cxx_pop_function_context (struct function *);
3804 extern void maybe_push_cleanup_level (tree);
3805 extern void finish_scope (void);
3806 extern void push_switch (tree);
3807 extern void pop_switch (void);
3808 extern tree pushtag (tree, tree, tag_scope);
3809 extern tree make_anon_name (void);
3810 extern int decls_match (tree, tree);
3811 extern tree duplicate_decls (tree, tree, bool);
3812 extern tree pushdecl_top_level_maybe_friend (tree, bool);
3813 extern tree pushdecl_top_level_and_finish (tree, tree);
3814 extern tree declare_local_label (tree);
3815 extern tree define_label (location_t, tree);
3816 extern void check_goto (tree);
3817 extern bool check_omp_return (void);
3818 extern tree make_typename_type (tree, tree, enum tag_types, tsubst_flags_t);
3819 extern tree make_unbound_class_template (tree, tree, tree, tsubst_flags_t);
3820 extern tree check_for_out_of_scope_variable (tree);
3821 extern tree build_library_fn (tree, tree);
3822 extern tree build_library_fn_ptr (const char *, tree);
3823 extern tree build_cp_library_fn_ptr (const char *, tree);
3824 extern tree push_library_fn (tree, tree);
3825 extern tree push_void_library_fn (tree, tree);
3826 extern tree push_throw_library_fn (tree, tree);
3827 extern tree check_tag_decl (cp_decl_specifier_seq *);
3828 extern tree shadow_tag (cp_decl_specifier_seq *);
3829 extern tree groktypename (cp_decl_specifier_seq *, const cp_declarator *);
3830 extern tree start_decl (const cp_declarator *, cp_decl_specifier_seq *, int, tree, tree, tree *);
3831 extern void start_decl_1 (tree);
3832 extern void cp_finish_decl (tree, tree, tree, int);
3833 extern void finish_decl (tree, tree, tree);
3834 extern int cp_complete_array_type (tree *, tree, bool);
3835 extern tree build_ptrmemfunc_type (tree);
3836 extern tree build_ptrmem_type (tree, tree);
3837 /* the grokdeclarator prototype is in decl.h */
3838 extern int copy_fn_p (tree);
3839 extern tree get_scope_of_declarator (const cp_declarator *);
3840 extern void grok_special_member_properties (tree);
3841 extern int grok_ctor_properties (tree, tree);
3842 extern void grok_op_properties (tree, bool);
3843 extern tree xref_tag (enum tag_types, tree, tag_scope, bool);
3844 extern tree xref_tag_from_type (tree, tree, tag_scope);
3845 extern void xref_basetypes (tree, tree);
3846 extern tree start_enum (tree);
3847 extern void finish_enum (tree);
3848 extern void build_enumerator (tree, tree, tree);
3849 extern void start_preparsed_function (tree, tree, int);
3850 extern int start_function (cp_decl_specifier_seq *, const cp_declarator *, tree);
3851 extern tree begin_function_body (void);
3852 extern void finish_function_body (tree);
3853 extern tree finish_function (int);
3854 extern tree start_method (cp_decl_specifier_seq *, const cp_declarator *, tree);
3855 extern tree finish_method (tree);
3856 extern void maybe_register_incomplete_var (tree);
3857 extern void complete_vars (tree);
3858 extern void finish_stmt (void);
3859 extern void print_other_binding_stack (struct cp_binding_level *);
3860 extern void revert_static_member_fn (tree);
3861 extern void fixup_anonymous_aggr (tree);
3862 extern int check_static_variable_definition (tree, tree);
3863 extern tree compute_array_index_type (tree, tree);
3864 extern tree check_default_argument (tree, tree);
3865 typedef int (*walk_namespaces_fn) (tree, void *);
3866 extern int walk_namespaces (walk_namespaces_fn,
3867 void *);
3868 extern int wrapup_globals_for_namespace (tree, void *);
3869 extern tree create_implicit_typedef (tree, tree);
3870 extern tree maybe_push_decl (tree);
3871 extern tree force_target_expr (tree, tree);
3872 extern tree build_target_expr_with_type (tree, tree);
3873 extern int local_variable_p (tree);
3874 extern int nonstatic_local_decl_p (tree);
3875 extern tree register_dtor_fn (tree);
3876 extern tmpl_spec_kind current_tmpl_spec_kind (int);
3877 extern tree cp_fname_init (const char *, tree *);
3878 extern tree builtin_function (const char *name, tree type,
3879 int code,
3880 enum built_in_class cl,
3881 const char *libname,
3882 tree attrs);
3883 extern tree check_elaborated_type_specifier (enum tag_types, tree, bool);
3884 extern void warn_extern_redeclared_static (tree, tree);
3885 extern const char *cxx_comdat_group (tree);
3886 extern bool cp_missing_noreturn_ok_p (tree);
3887 extern void initialize_artificial_var (tree, tree);
3888 extern tree check_var_type (tree, tree);
3889 extern tree reshape_init (tree, tree);
3891 extern bool have_extern_spec;
3893 /* in decl2.c */
3894 extern bool check_java_method (tree);
3895 extern cp_cv_quals grok_method_quals (tree, tree, cp_cv_quals);
3896 extern void maybe_retrofit_in_chrg (tree);
3897 extern void maybe_make_one_only (tree);
3898 extern void grokclassfn (tree, tree,
3899 enum overload_flags,
3900 cp_cv_quals);
3901 extern tree grok_array_decl (tree, tree);
3902 extern tree delete_sanity (tree, tree, bool, int);
3903 extern tree check_classfn (tree, tree, tree);
3904 extern void check_member_template (tree);
3905 extern tree grokfield (const cp_declarator *, cp_decl_specifier_seq *,
3906 tree, tree, tree);
3907 extern tree grokbitfield (const cp_declarator *, cp_decl_specifier_seq *,
3908 tree);
3909 extern void cplus_decl_attributes (tree *, tree, int);
3910 extern void finish_anon_union (tree);
3911 extern void cp_finish_file (void);
3912 extern tree coerce_new_type (tree);
3913 extern tree coerce_delete_type (tree);
3914 extern void comdat_linkage (tree);
3915 extern void determine_visibility (tree);
3916 extern void import_export_decl (tree);
3917 extern tree build_cleanup (tree);
3918 extern tree build_offset_ref_call_from_tree (tree, tree);
3919 extern void check_default_args (tree);
3920 extern void mark_used (tree);
3921 extern void finish_static_data_member_decl (tree, tree, tree, int);
3922 extern tree cp_build_parm_decl (tree, tree);
3923 extern tree get_guard (tree);
3924 extern tree get_guard_cond (tree);
3925 extern tree set_guard (tree);
3926 extern tree cxx_callgraph_analyze_expr (tree *, int *, tree);
3927 extern void mark_needed (tree);
3928 extern bool decl_needed_p (tree);
3929 extern void note_vague_linkage_fn (tree);
3931 /* in error.c */
3932 extern void init_error (void);
3933 extern const char *type_as_string (tree, int);
3934 extern const char *decl_as_string (tree, int);
3935 extern const char *expr_as_string (tree, int);
3936 extern const char *lang_decl_name (tree, int);
3937 extern const char *language_to_string (enum languages);
3938 extern const char *class_key_or_enum_as_string (tree);
3939 extern void print_instantiation_context (void);
3941 /* in except.c */
3942 extern void init_exception_processing (void);
3943 extern tree expand_start_catch_block (tree);
3944 extern void expand_end_catch_block (void);
3945 extern tree build_exc_ptr (void);
3946 extern tree build_throw (tree);
3947 extern int nothrow_libfn_p (tree);
3948 extern void check_handlers (tree);
3949 extern void choose_personality_routine (enum languages);
3950 extern tree eh_type_info (tree);
3952 /* in expr.c */
3953 extern rtx cxx_expand_expr (tree, rtx,
3954 enum machine_mode,
3955 int, rtx *);
3956 extern tree cplus_expand_constant (tree);
3958 /* friend.c */
3959 extern int is_friend (tree, tree);
3960 extern void make_friend_class (tree, tree, bool);
3961 extern void add_friend (tree, tree, bool);
3962 extern tree do_friend (tree, tree, tree, tree, enum overload_flags, cp_cv_quals, bool);
3964 /* in init.c */
3965 extern tree expand_member_init (tree);
3966 extern void emit_mem_initializers (tree);
3967 extern tree build_aggr_init (tree, tree, int);
3968 extern tree build_init (tree, tree, int);
3969 extern int is_aggr_type (tree, int);
3970 extern tree get_type_value (tree);
3971 extern tree build_zero_init (tree, tree, bool);
3972 extern tree build_offset_ref (tree, tree, bool);
3973 extern tree build_new (tree, tree, tree, tree, int);
3974 extern tree build_vec_init (tree, tree, tree, bool, int);
3975 extern tree build_delete (tree, tree,
3976 special_function_kind,
3977 int, int);
3978 extern void push_base_cleanups (void);
3979 extern tree build_vec_delete (tree, tree,
3980 special_function_kind, int);
3981 extern tree create_temporary_var (tree);
3982 extern void initialize_vtbl_ptrs (tree);
3983 extern tree build_java_class_ref (tree);
3984 extern tree integral_constant_value (tree);
3986 /* in lex.c */
3987 extern void cxx_dup_lang_specific_decl (tree);
3988 extern void yyungetc (int, int);
3990 extern tree unqualified_name_lookup_error (tree);
3991 extern tree unqualified_fn_lookup_error (tree);
3992 extern tree build_lang_decl (enum tree_code, tree, tree);
3993 extern void retrofit_lang_decl (tree);
3994 extern tree copy_decl (tree);
3995 extern tree copy_type (tree);
3996 extern tree cxx_make_type (enum tree_code);
3997 extern tree make_aggr_type (enum tree_code);
3998 extern void yyerror (const char *);
3999 extern void yyhook (int);
4000 extern bool cxx_init (void);
4001 extern void cxx_finish (void);
4003 /* in method.c */
4004 extern void init_method (void);
4005 extern tree make_thunk (tree, bool, tree, tree);
4006 extern void finish_thunk (tree);
4007 extern void use_thunk (tree, bool);
4008 extern void synthesize_method (tree);
4009 extern tree lazily_declare_fn (special_function_kind,
4010 tree);
4011 extern tree skip_artificial_parms_for (tree, tree);
4012 extern tree make_alias_for (tree, tree);
4014 /* In optimize.c */
4015 extern bool maybe_clone_body (tree);
4017 /* in pt.c */
4018 extern void check_template_shadow (tree);
4019 extern tree get_innermost_template_args (tree, int);
4020 extern void maybe_begin_member_template_processing (tree);
4021 extern void maybe_end_member_template_processing (void);
4022 extern tree finish_member_template_decl (tree);
4023 extern void begin_template_parm_list (void);
4024 extern void begin_specialization (void);
4025 extern void reset_specialization (void);
4026 extern void end_specialization (void);
4027 extern void begin_explicit_instantiation (void);
4028 extern void end_explicit_instantiation (void);
4029 extern tree check_explicit_specialization (tree, tree, int, int);
4030 extern tree process_template_parm (tree, tree, bool);
4031 extern tree end_template_parm_list (tree);
4032 extern void end_template_decl (void);
4033 extern tree push_template_decl (tree);
4034 extern tree push_template_decl_real (tree, bool);
4035 extern void redeclare_class_template (tree, tree);
4036 extern tree lookup_template_class (tree, tree, tree, tree,
4037 int, tsubst_flags_t);
4038 extern tree lookup_template_function (tree, tree);
4039 extern int uses_template_parms (tree);
4040 extern int uses_template_parms_level (tree, int);
4041 extern tree instantiate_class_template (tree);
4042 extern tree instantiate_template (tree, tree, tsubst_flags_t);
4043 extern int fn_type_unification (tree, tree, tree, tree,
4044 tree, unification_kind_t, int);
4045 extern void mark_decl_instantiated (tree, int);
4046 extern int more_specialized_fn (tree, tree, int);
4047 extern void do_decl_instantiation (tree, tree);
4048 extern void do_type_instantiation (tree, tree, tsubst_flags_t);
4049 extern tree instantiate_decl (tree, int, bool);
4050 extern int comp_template_parms (tree, tree);
4051 extern int template_class_depth (tree);
4052 extern int is_specialization_of (tree, tree);
4053 extern bool is_specialization_of_friend (tree, tree);
4054 extern int comp_template_args (tree, tree);
4055 extern void maybe_process_partial_specialization (tree);
4056 extern tree most_specialized_instantiation (tree);
4057 extern void print_candidates (tree);
4058 extern void instantiate_pending_templates (int);
4059 extern tree tsubst_default_argument (tree, tree, tree);
4060 extern tree tsubst_copy_and_build (tree, tree, tsubst_flags_t,
4061 tree, bool);
4062 extern tree most_general_template (tree);
4063 extern tree get_mostly_instantiated_function_type (tree);
4064 extern int problematic_instantiation_changed (void);
4065 extern void record_last_problematic_instantiation (void);
4066 extern tree current_instantiation (void);
4067 extern tree maybe_get_template_decl_from_type_decl (tree);
4068 extern int processing_template_parmlist;
4069 extern bool dependent_type_p (tree);
4070 extern bool any_dependent_template_arguments_p (tree);
4071 extern bool dependent_template_p (tree);
4072 extern bool dependent_template_id_p (tree, tree);
4073 extern bool type_dependent_expression_p (tree);
4074 extern bool any_type_dependent_arguments_p (tree);
4075 extern bool value_dependent_expression_p (tree);
4076 extern tree resolve_typename_type (tree, bool);
4077 extern tree template_for_substitution (tree);
4078 extern tree build_non_dependent_expr (tree);
4079 extern tree build_non_dependent_args (tree);
4080 extern bool reregister_specialization (tree, tree, tree);
4081 extern tree fold_non_dependent_expr (tree);
4083 /* in repo.c */
4084 extern void init_repo (void);
4085 extern int repo_emit_p (tree);
4086 extern bool repo_export_class_p (tree);
4087 extern void finish_repo (void);
4089 /* in rtti.c */
4090 /* A vector of all tinfo decls that haven't been emitted yet. */
4091 extern GTY(()) VEC(tree,gc) *unemitted_tinfo_decls;
4093 extern void init_rtti_processing (void);
4094 extern tree build_typeid (tree);
4095 extern tree get_tinfo_decl (tree);
4096 extern tree get_typeid (tree);
4097 extern tree build_dynamic_cast (tree, tree);
4098 extern void emit_support_tinfos (void);
4099 extern bool emit_tinfo_decl (tree);
4101 /* in search.c */
4102 extern bool accessible_base_p (tree, tree, bool);
4103 extern tree lookup_base (tree, tree, base_access,
4104 base_kind *);
4105 extern tree dcast_base_hint (tree, tree);
4106 extern int accessible_p (tree, tree, bool);
4107 extern tree lookup_field_1 (tree, tree, bool);
4108 extern tree lookup_field (tree, tree, int, bool);
4109 extern int lookup_fnfields_1 (tree, tree);
4110 extern int class_method_index_for_fn (tree, tree);
4111 extern tree lookup_fnfields (tree, tree, int);
4112 extern tree lookup_member (tree, tree, int, bool);
4113 extern int look_for_overrides (tree, tree);
4114 extern void get_pure_virtuals (tree);
4115 extern void maybe_suppress_debug_info (tree);
4116 extern void note_debug_info_needed (tree);
4117 extern void print_search_statistics (void);
4118 extern void reinit_search_statistics (void);
4119 extern tree current_scope (void);
4120 extern int at_function_scope_p (void);
4121 extern bool at_class_scope_p (void);
4122 extern bool at_namespace_scope_p (void);
4123 extern tree context_for_name_lookup (tree);
4124 extern tree lookup_conversions (tree);
4125 extern tree binfo_from_vbase (tree);
4126 extern tree binfo_for_vbase (tree, tree);
4127 extern tree look_for_overrides_here (tree, tree);
4128 #define dfs_skip_bases ((tree)1)
4129 extern tree dfs_walk_all (tree, tree (*) (tree, void *),
4130 tree (*) (tree, void *), void *);
4131 extern tree dfs_walk_once (tree, tree (*) (tree, void *),
4132 tree (*) (tree, void *), void *);
4133 extern tree binfo_via_virtual (tree, tree);
4134 extern tree build_baselink (tree, tree, tree, tree);
4135 extern tree adjust_result_of_qualified_name_lookup
4136 (tree, tree, tree);
4137 extern tree copied_binfo (tree, tree);
4138 extern tree original_binfo (tree, tree);
4139 extern int shared_member_p (tree);
4141 /* in semantics.c */
4142 extern void push_deferring_access_checks (deferring_kind);
4143 extern void resume_deferring_access_checks (void);
4144 extern void stop_deferring_access_checks (void);
4145 extern void pop_deferring_access_checks (void);
4146 extern tree get_deferred_access_checks (void);
4147 extern void pop_to_parent_deferring_access_checks (void);
4148 extern void perform_deferred_access_checks (void);
4149 extern void perform_or_defer_access_check (tree, tree);
4150 extern int stmts_are_full_exprs_p (void);
4151 extern void init_cp_semantics (void);
4152 extern tree do_poplevel (tree);
4153 extern void add_decl_expr (tree);
4154 extern tree finish_expr_stmt (tree);
4155 extern tree begin_if_stmt (void);
4156 extern void finish_if_stmt_cond (tree, tree);
4157 extern tree finish_then_clause (tree);
4158 extern void begin_else_clause (tree);
4159 extern void finish_else_clause (tree);
4160 extern void finish_if_stmt (tree);
4161 extern tree begin_while_stmt (void);
4162 extern void finish_while_stmt_cond (tree, tree);
4163 extern void finish_while_stmt (tree);
4164 extern tree begin_do_stmt (void);
4165 extern void finish_do_body (tree);
4166 extern void finish_do_stmt (tree, tree);
4167 extern tree finish_return_stmt (tree);
4168 extern tree begin_for_stmt (void);
4169 extern void finish_for_init_stmt (tree);
4170 extern void finish_for_cond (tree, tree);
4171 extern void finish_for_expr (tree, tree);
4172 extern void finish_for_stmt (tree);
4173 extern tree finish_break_stmt (void);
4174 extern tree finish_continue_stmt (void);
4175 extern tree begin_switch_stmt (void);
4176 extern void finish_switch_cond (tree, tree);
4177 extern void finish_switch_stmt (tree);
4178 extern tree finish_case_label (tree, tree);
4179 extern tree finish_goto_stmt (tree);
4180 extern tree begin_try_block (void);
4181 extern void finish_try_block (tree);
4182 extern tree begin_eh_spec_block (void);
4183 extern void finish_eh_spec_block (tree, tree);
4184 extern void finish_handler_sequence (tree);
4185 extern tree begin_function_try_block (void);
4186 extern void finish_function_try_block (tree);
4187 extern void finish_function_handler_sequence (tree);
4188 extern void finish_cleanup_try_block (tree);
4189 extern tree begin_handler (void);
4190 extern void finish_handler_parms (tree, tree);
4191 extern void finish_handler (tree);
4192 extern void finish_cleanup (tree, tree);
4194 enum {
4195 BCS_NO_SCOPE = 1,
4196 BCS_TRY_BLOCK = 2,
4197 BCS_FN_BODY = 4
4199 extern tree begin_compound_stmt (unsigned int);
4201 extern void finish_compound_stmt (tree);
4202 extern tree finish_asm_stmt (int, tree, tree, tree, tree);
4203 extern tree finish_label_stmt (tree);
4204 extern void finish_label_decl (tree);
4205 extern tree finish_parenthesized_expr (tree);
4206 extern tree finish_non_static_data_member (tree, tree, tree);
4207 extern tree begin_stmt_expr (void);
4208 extern tree finish_stmt_expr_expr (tree, tree);
4209 extern tree finish_stmt_expr (tree, bool);
4210 extern tree perform_koenig_lookup (tree, tree);
4211 extern tree finish_call_expr (tree, tree, bool, bool);
4212 extern tree finish_increment_expr (tree, enum tree_code);
4213 extern tree finish_this_expr (void);
4214 extern tree finish_pseudo_destructor_expr (tree, tree, tree);
4215 extern tree finish_unary_op_expr (enum tree_code, tree);
4216 extern tree finish_compound_literal (tree, VEC(constructor_elt,gc) *);
4217 extern tree finish_fname (tree);
4218 extern void finish_translation_unit (void);
4219 extern tree finish_template_type_parm (tree, tree);
4220 extern tree finish_template_template_parm (tree, tree);
4221 extern tree begin_class_definition (tree);
4222 extern void finish_template_decl (tree);
4223 extern tree finish_template_type (tree, tree, int);
4224 extern tree finish_base_specifier (tree, tree, bool);
4225 extern void finish_member_declaration (tree);
4226 extern void qualified_name_lookup_error (tree, tree, tree);
4227 extern void check_template_keyword (tree);
4228 extern tree finish_id_expression (tree, tree, tree,
4229 cp_id_kind *,
4230 bool, bool, bool *,
4231 bool, bool, bool, bool,
4232 const char **);
4233 extern tree finish_typeof (tree);
4234 extern void finish_decl_cleanup (tree, tree);
4235 extern void finish_eh_cleanup (tree);
4236 extern void expand_body (tree);
4237 extern void finish_mem_initializers (tree);
4238 extern tree check_template_template_default_arg (tree);
4239 extern void expand_or_defer_fn (tree);
4240 extern void check_accessibility_of_qualified_id (tree, tree, tree);
4241 extern tree finish_qualified_id_expr (tree, tree, bool, bool,
4242 bool, bool);
4243 extern void simplify_aggr_init_expr (tree *);
4244 extern void finalize_nrv (tree *, tree, tree);
4245 extern void note_decl_for_pch (tree);
4246 extern tree finish_omp_clauses (tree);
4247 extern void finish_omp_threadprivate (tree);
4248 extern tree begin_omp_structured_block (void);
4249 extern tree finish_omp_structured_block (tree);
4250 extern tree begin_omp_parallel (void);
4251 extern tree finish_omp_parallel (tree, tree);
4252 extern tree finish_omp_for (location_t, tree, tree,
4253 tree, tree, tree, tree);
4254 extern void finish_omp_atomic (enum tree_code, tree, tree);
4255 extern void finish_omp_barrier (void);
4256 extern void finish_omp_flush (void);
4257 extern enum omp_clause_default_kind cxx_omp_predetermined_sharing (tree);
4258 extern tree cxx_omp_clause_default_ctor (tree, tree);
4259 extern tree cxx_omp_clause_copy_ctor (tree, tree, tree);
4260 extern tree cxx_omp_clause_assign_op (tree, tree, tree);
4261 extern tree cxx_omp_clause_dtor (tree, tree);
4263 /* in tree.c */
4264 extern void lang_check_failed (const char *, int,
4265 const char *) ATTRIBUTE_NORETURN;
4266 extern tree stabilize_expr (tree, tree *);
4267 extern void stabilize_call (tree, tree *);
4268 extern bool stabilize_init (tree, tree *);
4269 extern tree add_stmt_to_compound (tree, tree);
4270 extern tree cxx_maybe_build_cleanup (tree);
4271 extern void init_tree (void);
4272 extern int pod_type_p (tree);
4273 extern int zero_init_p (tree);
4274 extern tree canonical_type_variant (tree);
4275 extern tree copy_binfo (tree, tree, tree,
4276 tree *, int);
4277 extern int member_p (tree);
4278 extern cp_lvalue_kind real_lvalue_p (tree);
4279 extern bool builtin_valid_in_constant_expr_p (tree);
4280 extern tree build_min (enum tree_code, tree, ...);
4281 extern tree build_min_nt (enum tree_code, ...);
4282 extern tree build_min_non_dep (enum tree_code, tree, ...);
4283 extern tree build_cplus_new (tree, tree);
4284 extern tree get_target_expr (tree);
4285 extern tree build_cplus_array_type (tree, tree);
4286 extern tree hash_tree_cons (tree, tree, tree);
4287 extern tree hash_tree_chain (tree, tree);
4288 extern tree build_qualified_name (tree, tree, tree, bool);
4289 extern int is_overloaded_fn (tree);
4290 extern tree get_first_fn (tree);
4291 extern tree ovl_cons (tree, tree);
4292 extern tree build_overload (tree, tree);
4293 extern const char *cxx_printable_name (tree, int);
4294 extern tree build_exception_variant (tree, tree);
4295 extern tree bind_template_template_parm (tree, tree);
4296 extern tree array_type_nelts_total (tree);
4297 extern tree array_type_nelts_top (tree);
4298 extern tree break_out_target_exprs (tree);
4299 extern tree get_type_decl (tree);
4300 extern tree decl_namespace_context (tree);
4301 extern tree lvalue_type (tree);
4302 extern tree error_type (tree);
4303 extern int varargs_function_p (tree);
4304 extern int really_overloaded_fn (tree);
4305 extern bool cp_tree_equal (tree, tree);
4306 extern tree no_linkage_check (tree, bool);
4307 extern void debug_binfo (tree);
4308 extern tree build_dummy_object (tree);
4309 extern tree maybe_dummy_object (tree, tree *);
4310 extern int is_dummy_object (tree);
4311 extern const struct attribute_spec cxx_attribute_table[];
4312 extern tree make_ptrmem_cst (tree, tree);
4313 extern tree cp_build_type_attribute_variant (tree, tree);
4314 extern tree cp_build_qualified_type_real (tree, int, tsubst_flags_t);
4315 #define cp_build_qualified_type(TYPE, QUALS) \
4316 cp_build_qualified_type_real ((TYPE), (QUALS), tf_warning_or_error)
4317 extern special_function_kind special_function_p (tree);
4318 extern int count_trees (tree);
4319 extern int char_type_p (tree);
4320 extern void verify_stmt_tree (tree);
4321 extern linkage_kind decl_linkage (tree);
4322 extern tree cp_walk_subtrees (tree*, int*, walk_tree_fn,
4323 void*, struct pointer_set_t*);
4324 extern int cp_cannot_inline_tree_fn (tree*);
4325 extern tree cp_add_pending_fn_decls (void*,tree);
4326 extern int cp_auto_var_in_fn_p (tree,tree);
4327 extern tree fold_if_not_in_template (tree);
4328 extern tree rvalue (tree);
4330 /* in typeck.c */
4331 extern int string_conv_p (tree, tree, int);
4332 extern tree cp_truthvalue_conversion (tree);
4333 extern tree condition_conversion (tree);
4334 extern tree require_complete_type (tree);
4335 extern tree complete_type (tree);
4336 extern tree complete_type_or_else (tree, tree);
4337 extern int type_unknown_p (tree);
4338 extern bool comp_except_specs (tree, tree, bool);
4339 extern bool comptypes (tree, tree, int);
4340 extern bool compparms (tree, tree);
4341 extern int comp_cv_qualification (tree, tree);
4342 extern int comp_cv_qual_signature (tree, tree);
4343 extern tree cxx_sizeof_or_alignof_expr (tree, enum tree_code);
4344 extern tree cxx_sizeof_or_alignof_type (tree, enum tree_code, bool);
4345 #define cxx_sizeof_nowarn(T) cxx_sizeof_or_alignof_type (T, SIZEOF_EXPR, false)
4346 extern tree inline_conversion (tree);
4347 extern tree decay_conversion (tree);
4348 extern tree default_conversion (tree);
4349 extern tree build_class_member_access_expr (tree, tree, tree, bool);
4350 extern tree finish_class_member_access_expr (tree, tree, bool);
4351 extern tree build_x_indirect_ref (tree, const char *);
4352 extern tree build_indirect_ref (tree, const char *);
4353 extern tree build_array_ref (tree, tree);
4354 extern tree get_member_function_from_ptrfunc (tree *, tree);
4355 extern tree build_x_binary_op (enum tree_code, tree, tree,
4356 bool *);
4357 extern tree build_x_unary_op (enum tree_code, tree);
4358 extern tree unary_complex_lvalue (enum tree_code, tree);
4359 extern tree build_x_conditional_expr (tree, tree, tree);
4360 extern tree build_x_compound_expr_from_list (tree, const char *);
4361 extern tree build_x_compound_expr (tree, tree);
4362 extern tree build_compound_expr (tree, tree);
4363 extern tree build_static_cast (tree, tree);
4364 extern tree build_reinterpret_cast (tree, tree);
4365 extern tree build_const_cast (tree, tree);
4366 extern tree build_c_cast (tree, tree);
4367 extern tree build_x_modify_expr (tree, enum tree_code, tree);
4368 extern tree build_modify_expr (tree, enum tree_code, tree);
4369 extern tree convert_for_initialization (tree, tree, tree, int,
4370 const char *, tree, int);
4371 extern int comp_ptr_ttypes (tree, tree);
4372 extern bool comp_ptr_ttypes_const (tree, tree);
4373 extern int ptr_reasonably_similar (tree, tree);
4374 extern tree build_ptrmemfunc (tree, tree, int, bool);
4375 extern int cp_type_quals (tree);
4376 extern bool cp_has_mutable_p (tree);
4377 extern bool at_least_as_qualified_p (tree, tree);
4378 extern void cp_apply_type_quals_to_decl (int, tree);
4379 extern tree build_ptrmemfunc1 (tree, tree, tree);
4380 extern void expand_ptrmemfunc_cst (tree, tree *, tree *);
4381 extern tree type_after_usual_arithmetic_conversions (tree, tree);
4382 extern tree composite_pointer_type (tree, tree, tree, tree,
4383 const char*);
4384 extern tree merge_types (tree, tree);
4385 extern tree check_return_expr (tree, bool *);
4386 #define cp_build_binary_op(code, arg1, arg2) \
4387 build_binary_op(code, arg1, arg2, 1)
4388 #define cxx_sizeof(T) cxx_sizeof_or_alignof_type (T, SIZEOF_EXPR, true)
4389 extern tree build_ptrmemfunc_access_expr (tree, tree);
4390 extern tree build_address (tree);
4391 extern tree build_nop (tree, tree);
4392 extern tree non_reference (tree);
4393 extern tree lookup_anon_field (tree, tree);
4394 extern bool invalid_nonstatic_memfn_p (tree);
4395 extern tree convert_member_func_to_ptr (tree, tree);
4396 extern tree convert_ptrmem (tree, tree, bool, bool);
4397 extern int lvalue_or_else (tree, enum lvalue_use);
4398 extern int lvalue_p (tree);
4400 /* in typeck2.c */
4401 extern void require_complete_eh_spec_types (tree, tree);
4402 extern void cxx_incomplete_type_diagnostic (tree, tree, int);
4403 #undef cxx_incomplete_type_error
4404 extern void cxx_incomplete_type_error (tree, tree);
4405 #define cxx_incomplete_type_error(V,T) \
4406 (cxx_incomplete_type_diagnostic ((V), (T), 0))
4407 extern tree error_not_base_type (tree, tree);
4408 extern tree binfo_or_else (tree, tree);
4409 extern void readonly_error (tree, const char *, int);
4410 extern void complete_type_check_abstract (tree);
4411 extern int abstract_virtuals_error (tree, tree);
4413 extern tree store_init_value (tree, tree);
4414 extern tree digest_init (tree, tree);
4415 extern tree build_scoped_ref (tree, tree, tree *);
4416 extern tree build_x_arrow (tree);
4417 extern tree build_m_component_ref (tree, tree);
4418 extern tree build_functional_cast (tree, tree);
4419 extern tree add_exception_specifier (tree, tree, int);
4420 extern tree merge_exception_specifiers (tree, tree);
4422 /* in mangle.c */
4423 extern void init_mangle (void);
4424 extern void mangle_decl (tree);
4425 extern const char *mangle_type_string (tree);
4426 extern tree mangle_typeinfo_for_type (tree);
4427 extern tree mangle_typeinfo_string_for_type (tree);
4428 extern tree mangle_vtbl_for_type (tree);
4429 extern tree mangle_vtt_for_type (tree);
4430 extern tree mangle_ctor_vtbl_for_type (tree, tree);
4431 extern tree mangle_thunk (tree, int, tree, tree);
4432 extern tree mangle_conv_op_name_for_type (tree);
4433 extern tree mangle_guard_variable (tree);
4434 extern tree mangle_ref_init_variable (tree);
4436 /* in dump.c */
4437 extern bool cp_dump_tree (void *, tree);
4439 /* In cp/cp-objcp-common.c. */
4441 extern HOST_WIDE_INT cxx_get_alias_set (tree);
4442 extern bool cxx_warn_unused_global_decl (tree);
4443 extern tree cp_expr_size (tree);
4444 extern size_t cp_tree_size (enum tree_code);
4445 extern bool cp_var_mod_type_p (tree, tree);
4446 extern void cxx_initialize_diagnostics (struct diagnostic_context *);
4447 extern int cxx_types_compatible_p (tree, tree);
4448 extern void init_shadowed_var_for_decl (void);
4450 /* in cp-gimplify.c */
4451 extern int cp_gimplify_expr (tree *, tree *, tree *);
4452 extern void cp_genericize (tree);
4454 /* -- end of C++ */
4456 /* In order for the format checking to accept the C++ frontend
4457 diagnostic framework extensions, you must include this file before
4458 toplev.h, not after. We override the definition of GCC_DIAG_STYLE
4459 in c-common.h. */
4460 #undef GCC_DIAG_STYLE
4461 #define GCC_DIAG_STYLE __gcc_cxxdiag__
4462 #if GCC_VERSION >= 4001
4463 #define ATTRIBUTE_GCC_CXXDIAG(m, n) __attribute__ ((__format__ (GCC_DIAG_STYLE, m, n))) ATTRIBUTE_NONNULL(m)
4464 #else
4465 #define ATTRIBUTE_GCC_CXXDIAG(m, n) ATTRIBUTE_NONNULL(m)
4466 #endif
4467 extern void cp_cpp_error (cpp_reader *, int,
4468 const char *, va_list *)
4469 ATTRIBUTE_GCC_CXXDIAG(3,0);
4471 #endif /* ! GCC_CP_TREE_H */