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 Free Software Foundation, Inc.
4 Contributed by Michael Tiemann (tiemann@cygnus.com)
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
13 GCC is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING. If not, write to
20 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
21 Boston, MA 02110-1301, USA. */
29 #include "splay-tree.h"
33 #include "name-lookup.h"
34 struct diagnostic_context;
36 /* Usage of TREE_LANG_FLAG_?:
37 0: IDENTIFIER_MARKED (IDENTIFIER_NODEs)
38 NEW_EXPR_USE_GLOBAL (in NEW_EXPR).
39 DELETE_EXPR_USE_GLOBAL (in DELETE_EXPR).
40 COMPOUND_EXPR_OVERLOADED (in COMPOUND_EXPR).
41 TREE_INDIRECT_USING (in NAMESPACE_DECL).
42 CLEANUP_P (in TRY_BLOCK)
43 AGGR_INIT_VIA_CTOR_P (in AGGR_INIT_EXPR)
44 PTRMEM_OK_P (in ADDR_EXPR, OFFSET_REF)
45 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 1: IDENTIFIER_VIRTUAL_P (in IDENTIFIER_NODE)
55 TI_PENDING_TEMPLATE_FLAG.
56 TEMPLATE_PARMS_FOR_INLINE.
57 DELETE_EXPR_USE_VEC (in DELETE_EXPR).
58 (TREE_CALLS_NEW) (in _EXPR or _REF) (commented-out).
59 ICS_ELLIPSIS_FLAG (in _CONV)
60 DECL_INITIALIZED_P (in VAR_DECL)
61 TYPENAME_IS_CLASS_P (in TYPENAME_TYPE)
62 STMT_IS_FULL_EXPR_P (in _STMT)
63 2: IDENTIFIER_OPNAME_P (in IDENTIFIER_NODE)
64 ICS_THIS_FLAG (in _CONV)
65 DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (in VAR_DECL)
66 STATEMENT_LIST_TRY_BLOCK (in STATEMENT_LIST)
67 3: (TREE_REFERENCE_EXPR) (in NON_LVALUE_EXPR) (commented-out).
68 ICS_BAD_FLAG (in _CONV)
69 FN_TRY_BLOCK_P (in TRY_BLOCK)
70 IDENTIFIER_CTOR_OR_DTOR_P (in IDENTIFIER_NODE)
71 BIND_EXPR_BODY_BLOCK (in BIND_EXPR)
72 4: TREE_HAS_CONSTRUCTOR (in INDIRECT_REF, SAVE_EXPR, CONSTRUCTOR,
74 IDENTIFIER_TYPENAME_P (in IDENTIFIER_NODE)
75 DECL_TINFO_P (in VAR_DECL)
76 5: C_IS_RESERVED_WORD (in IDENTIFIER_NODE)
77 DECL_VTABLE_OR_VTT_P (in VAR_DECL)
78 6: IDENTIFIER_REPO_CHOSEN (in IDENTIFIER_NODE)
79 DECL_CONSTRUCTION_VTABLE_P (in VAR_DECL)
80 TYPE_MARKED_P (in _TYPE)
82 Usage of TYPE_LANG_FLAG_?:
84 1: TYPE_HAS_CONSTRUCTOR.
87 4: TYPE_HAS_NONTRIVIAL_DESTRUCTOR
89 6: TYPE_DEPENDENT_P_VALID
91 Usage of DECL_LANG_FLAG_?:
92 0: DECL_ERROR_REPORTED (in VAR_DECL).
93 DECL_TEMPLATE_PARM_P (in PARM_DECL, CONST_DECL, TYPE_DECL, or TEMPLATE_DECL)
94 DECL_LOCAL_FUNCTION_P (in FUNCTION_DECL)
95 DECL_MUTABLE_P (in FIELD_DECL)
96 DECL_DEPENDENT_P (in USING_DECL)
97 1: C_TYPEDEF_EXPLICITLY_SIGNED (in TYPE_DECL).
98 DECL_TEMPLATE_INSTANTIATED (in a VAR_DECL or a FUNCTION_DECL)
99 DECL_MEMBER_TEMPLATE_P (in TEMPLATE_DECL)
100 2: DECL_THIS_EXTERN (in VAR_DECL or FUNCTION_DECL).
101 DECL_IMPLICIT_TYPEDEF_P (in a TYPE_DECL)
103 4: DECL_C_BIT_FIELD (in a FIELD_DECL)
104 DECL_VAR_MARKED_P (in a VAR_DECL)
105 DECL_SELF_REFERENCE_P (in a TYPE_DECL)
106 DECL_INVALID_OVERRIDER_P (in a FUNCTION_DECL)
107 5: DECL_INTERFACE_KNOWN.
108 6: DECL_THIS_STATIC (in VAR_DECL or FUNCTION_DECL).
109 DECL_FIELD_IS_BASE (in FIELD_DECL)
110 7: DECL_DEAD_FOR_LOCAL (in VAR_DECL).
111 DECL_THUNK_P (in a member FUNCTION_DECL)
113 Usage of language-independent fields in a language-dependent manner:
116 This field is used by TYPENAME_TYPEs, TEMPLATE_TYPE_PARMs, and so
117 forth as a substitute for the mark bits provided in `lang_type'.
118 At present, only the six low-order bits are used.
121 For an ENUMERAL_TYPE, this is ENUM_TEMPLATE_INFO.
122 For a FUNCTION_TYPE or METHOD_TYPE, this is TYPE_RAISES_EXCEPTIONS
125 For a binfo, this is a TREE_LIST. There is an entry for each
126 virtual function declared either in BINFO or its direct and
127 indirect primary bases.
129 The BV_DELTA of each node gives the amount by which to adjust the
130 `this' pointer when calling the function. If the method is an
131 overridden version of a base class method, then it is assumed
132 that, prior to adjustment, the this pointer points to an object
135 The BV_VCALL_INDEX of each node, if non-NULL, gives the vtable
136 index of the vcall offset for this entry.
138 The BV_FN is the declaration for the virtual function itself.
141 This is an expression with POINTER_TYPE that gives the value
142 to which the vptr should be initialized. Use get_vtbl_decl_for_binfo
143 to extract the VAR_DECL for the complete vtable.
146 For a VAR_DECL this is DECL_ANON_UNION_ELEMS.
149 This field is NULL for a non-virtual function. For a virtual
150 function, it is eventually set to an INTEGER_CST indicating the
151 index in the vtable at which this function can be found. When
152 a virtual function is declared, but before it is known what
153 function is overridden, this field is the error_mark_node.
155 Temporarily, it may be set to a TREE_LIST whose TREE_VALUE is
156 the virtual function this one overrides, and whose TREE_CHAIN is
157 the old DECL_VINDEX. */
159 /* Language-specific tree checkers. */
161 #define VAR_OR_FUNCTION_DECL_CHECK(NODE) \
162 TREE_CHECK2(NODE,VAR_DECL,FUNCTION_DECL)
164 #define VAR_FUNCTION_OR_PARM_DECL_CHECK(NODE) \
165 TREE_CHECK3(NODE,VAR_DECL,FUNCTION_DECL,PARM_DECL)
167 #define VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK(NODE) \
168 TREE_CHECK4(NODE,VAR_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL)
170 #define BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK(NODE) \
171 TREE_CHECK(NODE,BOUND_TEMPLATE_TEMPLATE_PARM)
173 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
174 #define NON_THUNK_FUNCTION_CHECK(NODE) __extension__ \
175 ({ const tree __t = (NODE); \
176 if (TREE_CODE (__t) != FUNCTION_DECL && \
177 TREE_CODE (__t) != TEMPLATE_DECL && __t->decl_common.lang_specific \
178 && __t->decl_common.lang_specific->decl_flags.thunk_p) \
179 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, 0); \
181 #define THUNK_FUNCTION_CHECK(NODE) __extension__ \
182 ({ const tree __t = (NODE); \
183 if (TREE_CODE (__t) != FUNCTION_DECL || !__t->decl_common.lang_specific \
184 || !__t->decl_common.lang_specific->decl_flags.thunk_p) \
185 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, 0); \
188 #define NON_THUNK_FUNCTION_CHECK(NODE) (NODE)
189 #define THUNK_FUNCTION_CHECK(NODE) (NODE)
192 /* Language-dependent contents of an identifier. */
194 struct lang_identifier GTY(())
196 struct c_common_identifier c_common;
197 cxx_binding *namespace_bindings;
198 cxx_binding *bindings;
199 tree class_template_info;
203 /* In an IDENTIFIER_NODE, nonzero if this identifier is actually a
204 keyword. C_RID_CODE (node) is then the RID_* value of the keyword,
205 and C_RID_YYCODE is the token number wanted by Yacc. */
207 #define C_IS_RESERVED_WORD(ID) TREE_LANG_FLAG_5 (ID)
209 #define LANG_IDENTIFIER_CAST(NODE) \
210 ((struct lang_identifier*)IDENTIFIER_NODE_CHECK (NODE))
212 struct template_parm_index_s GTY(())
214 struct tree_common common;
217 HOST_WIDE_INT orig_level;
220 typedef struct template_parm_index_s template_parm_index;
222 struct tinst_level_s GTY(())
224 struct tree_common common;
227 int in_system_header_p;
229 typedef struct tinst_level_s * tinst_level_t;
231 struct ptrmem_cst GTY(())
233 struct tree_common common;
234 /* This isn't used, but the middle-end expects all constants to have
239 typedef struct ptrmem_cst * ptrmem_cst_t;
241 #define IDENTIFIER_GLOBAL_VALUE(NODE) \
242 namespace_binding ((NODE), global_namespace)
243 #define SET_IDENTIFIER_GLOBAL_VALUE(NODE, VAL) \
244 set_namespace_binding ((NODE), global_namespace, (VAL))
245 #define IDENTIFIER_NAMESPACE_VALUE(NODE) \
246 namespace_binding ((NODE), current_namespace)
247 #define SET_IDENTIFIER_NAMESPACE_VALUE(NODE, VAL) \
248 set_namespace_binding ((NODE), current_namespace, (VAL))
250 #define CLEANUP_P(NODE) TREE_LANG_FLAG_0 (TRY_BLOCK_CHECK (NODE))
252 #define BIND_EXPR_TRY_BLOCK(NODE) \
253 TREE_LANG_FLAG_0 (BIND_EXPR_CHECK (NODE))
255 /* Used to mark the block around the member initializers and cleanups. */
256 #define BIND_EXPR_BODY_BLOCK(NODE) \
257 TREE_LANG_FLAG_3 (BIND_EXPR_CHECK (NODE))
259 #define STATEMENT_LIST_NO_SCOPE(NODE) \
260 TREE_LANG_FLAG_0 (STATEMENT_LIST_CHECK (NODE))
261 #define STATEMENT_LIST_TRY_BLOCK(NODE) \
262 TREE_LANG_FLAG_2 (STATEMENT_LIST_CHECK (NODE))
264 /* Nonzero if this statement should be considered a full-expression,
265 i.e., if temporaries created during this statement should have
266 their destructors run at the end of this statement. */
267 #define STMT_IS_FULL_EXPR_P(NODE) TREE_LANG_FLAG_1 ((NODE))
269 /* Marks the result of a statement expression. */
270 #define EXPR_STMT_STMT_EXPR_RESULT(NODE) \
271 TREE_LANG_FLAG_0 (EXPR_STMT_CHECK (NODE))
273 /* Nonzero if this statement-expression does not have an associated scope. */
274 #define STMT_EXPR_NO_SCOPE(NODE) \
275 TREE_LANG_FLAG_0 (STMT_EXPR_CHECK (NODE))
277 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, in the usual
279 #define same_type_p(TYPE1, TYPE2) \
280 comptypes ((TYPE1), (TYPE2), COMPARE_STRICT)
282 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, ignoring
283 top-level qualifiers. */
284 #define same_type_ignoring_top_level_qualifiers_p(TYPE1, TYPE2) \
285 same_type_p (TYPE_MAIN_VARIANT (TYPE1), TYPE_MAIN_VARIANT (TYPE2))
287 /* Nonzero if we are presently building a statement tree, rather
288 than expanding each statement as we encounter it. */
289 #define building_stmt_tree() (cur_stmt_list != NULL_TREE)
291 /* Returns nonzero iff NODE is a declaration for the global function
293 #define DECL_MAIN_P(NODE) \
294 (DECL_EXTERN_C_FUNCTION_P (NODE) \
295 && DECL_NAME (NODE) != NULL_TREE \
296 && MAIN_NAME_P (DECL_NAME (NODE)))
298 /* The overloaded FUNCTION_DECL. */
299 #define OVL_FUNCTION(NODE) \
300 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->function)
301 #define OVL_CHAIN(NODE) TREE_CHAIN (NODE)
302 /* Polymorphic access to FUNCTION and CHAIN. */
303 #define OVL_CURRENT(NODE) \
304 ((TREE_CODE (NODE) == OVERLOAD) ? OVL_FUNCTION (NODE) : (NODE))
305 #define OVL_NEXT(NODE) \
306 ((TREE_CODE (NODE) == OVERLOAD) ? TREE_CHAIN (NODE) : NULL_TREE)
307 /* If set, this was imported in a using declaration.
308 This is not to confuse with being used somewhere, which
309 is not important for this node. */
310 #define OVL_USED(NODE) TREE_USED (NODE)
312 struct tree_overload GTY(())
314 struct tree_common common;
318 /* Returns true iff NODE is a BASELINK. */
319 #define BASELINK_P(NODE) \
320 (TREE_CODE (NODE) == BASELINK)
321 /* The BINFO indicating the base from which the BASELINK_FUNCTIONS came. */
322 #define BASELINK_BINFO(NODE) \
323 (((struct tree_baselink*) BASELINK_CHECK (NODE))->binfo)
324 /* The functions referred to by the BASELINK; either a FUNCTION_DECL,
325 a TEMPLATE_DECL, an OVERLOAD, or a TEMPLATE_ID_EXPR. */
326 #define BASELINK_FUNCTIONS(NODE) \
327 (((struct tree_baselink*) BASELINK_CHECK (NODE))->functions)
328 /* The BINFO in which the search for the functions indicated by this baselink
329 began. This base is used to determine the accessibility of functions
330 selected by overload resolution. */
331 #define BASELINK_ACCESS_BINFO(NODE) \
332 (((struct tree_baselink*) BASELINK_CHECK (NODE))->access_binfo)
333 /* For a type-conversion operator, the BASELINK_OPTYPE indicates the type
334 to which the conversion should occur. This value is important if
335 the BASELINK_FUNCTIONS include a template conversion operator --
336 the BASELINK_OPTYPE can be used to determine what type the user
338 #define BASELINK_OPTYPE(NODE) \
339 (TREE_CHAIN (BASELINK_CHECK (NODE)))
341 struct tree_baselink GTY(())
343 struct tree_common common;
349 /* The different kinds of ids that we encounter. */
351 typedef enum cp_id_kind
353 /* Not an id at all. */
355 /* An unqualified-id that is not a template-id. */
356 CP_ID_KIND_UNQUALIFIED,
357 /* An unqualified-id that is a dependent name. */
358 CP_ID_KIND_UNQUALIFIED_DEPENDENT,
359 /* An unqualified template-id. */
360 CP_ID_KIND_TEMPLATE_ID,
361 /* A qualified-id. */
365 /* Macros for access to language-specific slots in an identifier. */
367 #define IDENTIFIER_NAMESPACE_BINDINGS(NODE) \
368 (LANG_IDENTIFIER_CAST (NODE)->namespace_bindings)
369 #define IDENTIFIER_TEMPLATE(NODE) \
370 (LANG_IDENTIFIER_CAST (NODE)->class_template_info)
372 /* The IDENTIFIER_BINDING is the innermost cxx_binding for the
373 identifier. It's PREVIOUS is the next outermost binding. Each
374 VALUE field is a DECL for the associated declaration. Thus,
375 name lookup consists simply of pulling off the node at the front
376 of the list (modulo oddities for looking up the names of types,
377 and such.) You can use SCOPE field to determine the scope
378 that bound the name. */
379 #define IDENTIFIER_BINDING(NODE) \
380 (LANG_IDENTIFIER_CAST (NODE)->bindings)
382 /* TREE_TYPE only indicates on local and class scope the current
383 type. For namespace scope, the presence of a type in any namespace
384 is indicated with global_type_node, and the real type behind must
385 be found through lookup. */
386 #define IDENTIFIER_TYPE_VALUE(NODE) identifier_type_value (NODE)
387 #define REAL_IDENTIFIER_TYPE_VALUE(NODE) TREE_TYPE (NODE)
388 #define SET_IDENTIFIER_TYPE_VALUE(NODE,TYPE) (TREE_TYPE (NODE) = (TYPE))
389 #define IDENTIFIER_HAS_TYPE_VALUE(NODE) (IDENTIFIER_TYPE_VALUE (NODE) ? 1 : 0)
391 #define IDENTIFIER_LABEL_VALUE(NODE) \
392 (LANG_IDENTIFIER_CAST (NODE)->label_value)
393 #define SET_IDENTIFIER_LABEL_VALUE(NODE, VALUE) \
394 IDENTIFIER_LABEL_VALUE (NODE) = (VALUE)
396 /* Nonzero if this identifier is used as a virtual function name somewhere
397 (optimizes searches). */
398 #define IDENTIFIER_VIRTUAL_P(NODE) TREE_LANG_FLAG_1 (NODE)
400 /* Nonzero if this identifier is the prefix for a mangled C++ operator
402 #define IDENTIFIER_OPNAME_P(NODE) TREE_LANG_FLAG_2 (NODE)
404 /* Nonzero if this identifier is the name of a type-conversion
406 #define IDENTIFIER_TYPENAME_P(NODE) \
407 TREE_LANG_FLAG_4 (NODE)
409 /* Nonzero if this identifier is the name of a constructor or
411 #define IDENTIFIER_CTOR_OR_DTOR_P(NODE) \
412 TREE_LANG_FLAG_3 (NODE)
414 /* True iff NAME is the DECL_ASSEMBLER_NAME for an entity with vague
415 linkage which the prelinker has assigned to this translation
417 #define IDENTIFIER_REPO_CHOSEN(NAME) \
418 (TREE_LANG_FLAG_6 (NAME))
420 /* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */
421 #define C_TYPE_FIELDS_READONLY(TYPE) \
422 (LANG_TYPE_CLASS_CHECK (TYPE)->fields_readonly)
424 /* The tokens stored in the default argument. */
426 #define DEFARG_TOKENS(NODE) \
427 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->tokens)
428 #define DEFARG_INSTANTIATIONS(NODE) \
429 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->instantiations)
431 struct tree_default_arg GTY (())
433 struct tree_common common;
434 struct cp_token_cache *tokens;
435 VEC(tree,gc) *instantiations;
438 enum cp_tree_node_structure_enum {
452 /* The resulting tree type. */
453 union lang_tree_node GTY((desc ("cp_tree_node_structure (&%h)"),
454 chain_next ("(union lang_tree_node *)TREE_CHAIN (&%h.generic)")))
456 union tree_node GTY ((tag ("TS_CP_GENERIC"),
457 desc ("tree_node_structure (&%h)"))) generic;
458 struct template_parm_index_s GTY ((tag ("TS_CP_TPI"))) tpi;
459 struct tinst_level_s GTY ((tag ("TS_CP_TINST_LEVEL"))) tinst_level;
460 struct ptrmem_cst GTY ((tag ("TS_CP_PTRMEM"))) ptrmem;
461 struct tree_overload GTY ((tag ("TS_CP_OVERLOAD"))) overload;
462 struct tree_baselink GTY ((tag ("TS_CP_BASELINK"))) baselink;
463 struct tree_default_arg GTY ((tag ("TS_CP_DEFAULT_ARG"))) default_arg;
464 struct lang_identifier GTY ((tag ("TS_CP_IDENTIFIER"))) identifier;
471 CPTI_JAVA_SHORT_TYPE,
474 CPTI_JAVA_FLOAT_TYPE,
475 CPTI_JAVA_DOUBLE_TYPE,
477 CPTI_JAVA_BOOLEAN_TYPE,
480 CPTI_VTABLE_ENTRY_TYPE,
482 CPTI_VTABLE_INDEX_TYPE,
492 CPTI_CONST_TYPE_INFO_TYPE,
493 CPTI_TYPE_INFO_PTR_TYPE,
495 CPTI_GLOBAL_DELETE_FNDECL,
498 CPTI_CTOR_IDENTIFIER,
499 CPTI_COMPLETE_CTOR_IDENTIFIER,
500 CPTI_BASE_CTOR_IDENTIFIER,
501 CPTI_DTOR_IDENTIFIER,
502 CPTI_COMPLETE_DTOR_IDENTIFIER,
503 CPTI_BASE_DTOR_IDENTIFIER,
504 CPTI_DELETING_DTOR_IDENTIFIER,
505 CPTI_DELTA_IDENTIFIER,
506 CPTI_IN_CHARGE_IDENTIFIER,
507 CPTI_VTT_PARM_IDENTIFIER,
508 CPTI_NELTS_IDENTIFIER,
509 CPTI_THIS_IDENTIFIER,
511 CPTI_VPTR_IDENTIFIER,
515 CPTI_LANG_NAME_CPLUSPLUS,
518 CPTI_EMPTY_EXCEPT_SPEC,
521 CPTI_CALL_UNEXPECTED,
531 extern GTY(()) tree cp_global_trees[CPTI_MAX];
533 #define java_byte_type_node cp_global_trees[CPTI_JAVA_BYTE_TYPE]
534 #define java_short_type_node cp_global_trees[CPTI_JAVA_SHORT_TYPE]
535 #define java_int_type_node cp_global_trees[CPTI_JAVA_INT_TYPE]
536 #define java_long_type_node cp_global_trees[CPTI_JAVA_LONG_TYPE]
537 #define java_float_type_node cp_global_trees[CPTI_JAVA_FLOAT_TYPE]
538 #define java_double_type_node cp_global_trees[CPTI_JAVA_DOUBLE_TYPE]
539 #define java_char_type_node cp_global_trees[CPTI_JAVA_CHAR_TYPE]
540 #define java_boolean_type_node cp_global_trees[CPTI_JAVA_BOOLEAN_TYPE]
542 #define wchar_decl_node cp_global_trees[CPTI_WCHAR_DECL]
543 #define vtable_entry_type cp_global_trees[CPTI_VTABLE_ENTRY_TYPE]
544 /* The type used to represent an offset by which to adjust the `this'
545 pointer in pointer-to-member types. */
546 #define delta_type_node cp_global_trees[CPTI_DELTA_TYPE]
547 /* The type used to represent an index into the vtable. */
548 #define vtable_index_type cp_global_trees[CPTI_VTABLE_INDEX_TYPE]
550 #define class_type_node cp_global_trees[CPTI_CLASS_TYPE]
551 #define unknown_type_node cp_global_trees[CPTI_UNKNOWN_TYPE]
552 #define vtbl_type_node cp_global_trees[CPTI_VTBL_TYPE]
553 #define vtbl_ptr_type_node cp_global_trees[CPTI_VTBL_PTR_TYPE]
554 #define std_node cp_global_trees[CPTI_STD]
555 #define abi_node cp_global_trees[CPTI_ABI]
556 #define const_type_info_type_node cp_global_trees[CPTI_CONST_TYPE_INFO_TYPE]
557 #define type_info_ptr_type cp_global_trees[CPTI_TYPE_INFO_PTR_TYPE]
558 #define abort_fndecl cp_global_trees[CPTI_ABORT_FNDECL]
559 #define global_delete_fndecl cp_global_trees[CPTI_GLOBAL_DELETE_FNDECL]
560 #define current_aggr cp_global_trees[CPTI_AGGR_TAG]
562 /* We cache these tree nodes so as to call get_identifier less
565 /* The name of a constructor that takes an in-charge parameter to
566 decide whether or not to construct virtual base classes. */
567 #define ctor_identifier cp_global_trees[CPTI_CTOR_IDENTIFIER]
568 /* The name of a constructor that constructs virtual base classes. */
569 #define complete_ctor_identifier cp_global_trees[CPTI_COMPLETE_CTOR_IDENTIFIER]
570 /* The name of a constructor that does not construct virtual base classes. */
571 #define base_ctor_identifier cp_global_trees[CPTI_BASE_CTOR_IDENTIFIER]
572 /* The name of a destructor that takes an in-charge parameter to
573 decide whether or not to destroy virtual base classes and whether
574 or not to delete the object. */
575 #define dtor_identifier cp_global_trees[CPTI_DTOR_IDENTIFIER]
576 /* The name of a destructor that destroys virtual base classes. */
577 #define complete_dtor_identifier cp_global_trees[CPTI_COMPLETE_DTOR_IDENTIFIER]
578 /* The name of a destructor that does not destroy virtual base
580 #define base_dtor_identifier cp_global_trees[CPTI_BASE_DTOR_IDENTIFIER]
581 /* The name of a destructor that destroys virtual base classes, and
582 then deletes the entire object. */
583 #define deleting_dtor_identifier cp_global_trees[CPTI_DELETING_DTOR_IDENTIFIER]
584 #define delta_identifier cp_global_trees[CPTI_DELTA_IDENTIFIER]
585 #define in_charge_identifier cp_global_trees[CPTI_IN_CHARGE_IDENTIFIER]
586 /* The name of the parameter that contains a pointer to the VTT to use
587 for this subobject constructor or destructor. */
588 #define vtt_parm_identifier cp_global_trees[CPTI_VTT_PARM_IDENTIFIER]
589 #define nelts_identifier cp_global_trees[CPTI_NELTS_IDENTIFIER]
590 #define this_identifier cp_global_trees[CPTI_THIS_IDENTIFIER]
591 #define pfn_identifier cp_global_trees[CPTI_PFN_IDENTIFIER]
592 #define vptr_identifier cp_global_trees[CPTI_VPTR_IDENTIFIER]
593 /* The name of the std namespace. */
594 #define std_identifier cp_global_trees[CPTI_STD_IDENTIFIER]
595 #define lang_name_c cp_global_trees[CPTI_LANG_NAME_C]
596 #define lang_name_cplusplus cp_global_trees[CPTI_LANG_NAME_CPLUSPLUS]
597 #define lang_name_java cp_global_trees[CPTI_LANG_NAME_JAVA]
599 /* Exception specifier used for throw(). */
600 #define empty_except_spec cp_global_trees[CPTI_EMPTY_EXCEPT_SPEC]
602 /* If non-NULL, a POINTER_TYPE equivalent to (java::lang::Class*). */
603 #define jclass_node cp_global_trees[CPTI_JCLASS]
605 /* The declaration for `std::terminate'. */
606 #define terminate_node cp_global_trees[CPTI_TERMINATE]
608 /* The declaration for "__cxa_call_unexpected". */
609 #define call_unexpected_node cp_global_trees[CPTI_CALL_UNEXPECTED]
611 /* A pointer to `std::atexit'. */
612 #define atexit_node cp_global_trees[CPTI_ATEXIT]
614 /* A pointer to `__dso_handle'. */
615 #define dso_handle_node cp_global_trees[CPTI_DSO_HANDLE]
617 /* The declaration of the dynamic_cast runtime. */
618 #define dynamic_cast_node cp_global_trees[CPTI_DCAST]
620 /* The type of a destructor. */
621 #define cleanup_type cp_global_trees[CPTI_CLEANUP_TYPE]
623 /* The type of the vtt parameter passed to subobject constructors and
625 #define vtt_parm_type cp_global_trees[CPTI_VTT_PARM_TYPE]
627 /* A TREE_LIST of the dynamic classes whose vtables may have to be
628 emitted in this translation unit. */
630 #define keyed_classes cp_global_trees[CPTI_KEYED_CLASSES]
632 /* Node to indicate default access. This must be distinct from the
633 access nodes in tree.h. */
635 #define access_default_node null_node
639 struct saved_scope GTY(())
641 VEC(cxx_saved_binding,gc) *old_bindings;
646 tree access_specifier;
648 VEC(tree,gc) *lang_base;
651 struct cp_binding_level *x_previous_class_level;
654 HOST_WIDE_INT x_processing_template_decl;
655 int x_processing_specialization;
656 bool x_processing_explicit_instantiation;
657 int need_pop_function_context;
658 bool skip_evaluation;
660 struct stmt_tree_s x_stmt_tree;
662 struct cp_binding_level *class_bindings;
663 struct cp_binding_level *bindings;
665 struct saved_scope *prev;
668 /* The current open namespace. */
670 #define current_namespace scope_chain->old_namespace
672 /* The stack for namespaces of current declarations. */
674 #define decl_namespace_list scope_chain->decl_ns_list
676 /* IDENTIFIER_NODE: name of current class */
678 #define current_class_name scope_chain->class_name
680 /* _TYPE: the type of the current class */
682 #define current_class_type scope_chain->class_type
684 /* When parsing a class definition, the access specifier most recently
685 given by the user, or, if no access specifier was given, the
686 default value appropriate for the kind of class (i.e., struct,
689 #define current_access_specifier scope_chain->access_specifier
691 /* Pointer to the top of the language name stack. */
693 #define current_lang_base scope_chain->lang_base
694 #define current_lang_name scope_chain->lang_name
696 /* Parsing a function declarator leaves a list of parameter names
697 or a chain or parameter decls here. */
699 #define current_template_parms scope_chain->template_parms
701 #define processing_template_decl scope_chain->x_processing_template_decl
702 #define processing_specialization scope_chain->x_processing_specialization
703 #define processing_explicit_instantiation scope_chain->x_processing_explicit_instantiation
705 /* The cached class binding level, from the most recently exited
706 class, or NULL if none. */
708 #define previous_class_level scope_chain->x_previous_class_level
710 /* A list of private types mentioned, for deferred access checking. */
712 extern GTY(()) struct saved_scope *scope_chain;
714 /* Global state pertinent to the current function. */
716 struct language_function GTY(())
718 struct c_language_function base;
721 tree x_current_class_ptr;
722 tree x_current_class_ref;
723 tree x_eh_spec_block;
724 tree x_in_charge_parm;
730 int returns_abnormally;
731 int in_function_try_handler;
732 int in_base_initializer;
734 /* True if this function can throw an exception. */
735 BOOL_BITFIELD can_throw : 1;
737 struct named_label_use_list *x_named_label_uses;
738 struct named_label_list *x_named_labels;
739 struct cp_binding_level *bindings;
740 VEC(tree,gc) *x_local_names;
743 /* The current C++-specific per-function global variables. */
745 #define cp_function_chain (cfun->language)
747 /* In a constructor destructor, the point at which all derived class
748 destroying/construction has been has been done. Ie. just before a
749 constructor returns, or before any base class destroying will be done
752 #define cdtor_label cp_function_chain->x_cdtor_label
754 /* When we're processing a member function, current_class_ptr is the
755 PARM_DECL for the `this' pointer. The current_class_ref is an
756 expression for `*this'. */
758 #define current_class_ptr \
759 (cfun ? cp_function_chain->x_current_class_ptr : NULL_TREE)
760 #define current_class_ref \
761 (cfun ? cp_function_chain->x_current_class_ref : NULL_TREE)
763 /* The EH_SPEC_BLOCK for the exception-specifiers for the current
766 #define current_eh_spec_block cp_function_chain->x_eh_spec_block
768 /* The `__in_chrg' parameter for the current function. Only used for
769 constructors and destructors. */
771 #define current_in_charge_parm cp_function_chain->x_in_charge_parm
773 /* The `__vtt_parm' parameter for the current function. Only used for
774 constructors and destructors. */
776 #define current_vtt_parm cp_function_chain->x_vtt_parm
778 /* Set to 0 at beginning of a function definition, set to 1 if
779 a return statement that specifies a return value is seen. */
781 #define current_function_returns_value cp_function_chain->returns_value
783 /* Set to 0 at beginning of a function definition, set to 1 if
784 a return statement with no argument is seen. */
786 #define current_function_returns_null cp_function_chain->returns_null
788 /* Set to 0 at beginning of a function definition, set to 1 if
789 a call to a noreturn function is seen. */
791 #define current_function_returns_abnormally \
792 cp_function_chain->returns_abnormally
794 /* Nonzero if we are processing a base initializer. Zero elsewhere. */
795 #define in_base_initializer cp_function_chain->in_base_initializer
797 #define in_function_try_handler cp_function_chain->in_function_try_handler
799 /* Expression always returned from function, or error_mark_node
800 otherwise, for use by the automatic named return value optimization. */
802 #define current_function_return_value \
803 (cp_function_chain->x_return_value)
805 /* True if NAME is the IDENTIFIER_NODE for an overloaded "operator
806 new" or "operator delete". */
807 #define NEW_DELETE_OPNAME_P(NAME) \
808 ((NAME) == ansi_opname (NEW_EXPR) \
809 || (NAME) == ansi_opname (VEC_NEW_EXPR) \
810 || (NAME) == ansi_opname (DELETE_EXPR) \
811 || (NAME) == ansi_opname (VEC_DELETE_EXPR))
813 #define ansi_opname(CODE) \
814 (operator_name_info[(int) (CODE)].identifier)
815 #define ansi_assopname(CODE) \
816 (assignment_operator_name_info[(int) (CODE)].identifier)
818 /* True if NODE is an erroneous expression. */
820 #define error_operand_p(NODE) \
821 ((NODE) == error_mark_node \
822 || ((NODE) && TREE_TYPE ((NODE)) == error_mark_node))
824 /* C++ language-specific tree codes. */
825 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) SYM,
826 enum cplus_tree_code {
827 CP_DUMMY_TREE_CODE = LAST_C_TREE_CODE,
828 #include "cp-tree.def"
833 /* TRUE if a tree code represents a statement. */
834 extern bool statement_code_p[MAX_TREE_CODES];
836 #define STATEMENT_CODE_P(CODE) statement_code_p[(int) (CODE)]
838 enum languages { lang_c, lang_cplusplus, lang_java };
840 /* Macros to make error reporting functions' lives easier. */
841 #define TYPE_IDENTIFIER(NODE) (DECL_NAME (TYPE_NAME (NODE)))
842 #define TYPE_LINKAGE_IDENTIFIER(NODE) \
843 (TYPE_IDENTIFIER (TYPE_MAIN_VARIANT (NODE)))
844 #define TYPE_NAME_STRING(NODE) (IDENTIFIER_POINTER (TYPE_IDENTIFIER (NODE)))
845 #define TYPE_NAME_LENGTH(NODE) (IDENTIFIER_LENGTH (TYPE_IDENTIFIER (NODE)))
847 /* Nonzero if NODE has no name for linkage purposes. */
848 #define TYPE_ANONYMOUS_P(NODE) \
849 (TAGGED_TYPE_P (NODE) && ANON_AGGRNAME_P (TYPE_LINKAGE_IDENTIFIER (NODE)))
851 /* The _DECL for this _TYPE. */
852 #define TYPE_MAIN_DECL(NODE) (TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE)))
854 /* Nonzero if T is a class (or struct or union) type. Also nonzero
855 for template type parameters, typename types, and instantiated
856 template template parameters. Despite its name,
857 this macro has nothing to do with the definition of aggregate given
858 in the standard. Think of this macro as MAYBE_CLASS_TYPE_P. Keep
859 these checks in ascending code order. */
860 #define IS_AGGR_TYPE(T) \
861 (TREE_CODE (T) == TEMPLATE_TYPE_PARM \
862 || TREE_CODE (T) == TYPENAME_TYPE \
863 || TREE_CODE (T) == TYPEOF_TYPE \
864 || TREE_CODE (T) == BOUND_TEMPLATE_TEMPLATE_PARM \
865 || TYPE_LANG_FLAG_5 (T))
867 /* Set IS_AGGR_TYPE for T to VAL. T must be a class, struct, or
869 #define SET_IS_AGGR_TYPE(T, VAL) \
870 (TYPE_LANG_FLAG_5 (T) = (VAL))
872 /* Nonzero if T is a class type. Zero for template type parameters,
873 typename types, and so forth. */
874 #define CLASS_TYPE_P(T) \
875 (IS_AGGR_TYPE_CODE (TREE_CODE (T)) && TYPE_LANG_FLAG_5 (T))
877 /* Keep these checks in ascending code order. */
878 #define IS_AGGR_TYPE_CODE(T) \
879 ((T) == RECORD_TYPE || (T) == UNION_TYPE)
880 #define TAGGED_TYPE_P(T) \
881 (CLASS_TYPE_P (T) || TREE_CODE (T) == ENUMERAL_TYPE)
882 #define IS_OVERLOAD_TYPE(T) TAGGED_TYPE_P (T)
884 /* True if this a "Java" type, defined in 'extern "Java"'. */
885 #define TYPE_FOR_JAVA(NODE) TYPE_LANG_FLAG_3 (NODE)
887 /* True if this type is dependent. This predicate is only valid if
888 TYPE_DEPENDENT_P_VALID is true. */
889 #define TYPE_DEPENDENT_P(NODE) TYPE_LANG_FLAG_0 (NODE)
891 /* True if dependent_type_p has been called for this type, with the
892 result that TYPE_DEPENDENT_P is valid. */
893 #define TYPE_DEPENDENT_P_VALID(NODE) TYPE_LANG_FLAG_6(NODE)
895 /* Nonzero if this type is const-qualified. */
896 #define CP_TYPE_CONST_P(NODE) \
897 ((cp_type_quals (NODE) & TYPE_QUAL_CONST) != 0)
899 /* Nonzero if this type is volatile-qualified. */
900 #define CP_TYPE_VOLATILE_P(NODE) \
901 ((cp_type_quals (NODE) & TYPE_QUAL_VOLATILE) != 0)
903 /* Nonzero if this type is restrict-qualified. */
904 #define CP_TYPE_RESTRICT_P(NODE) \
905 ((cp_type_quals (NODE) & TYPE_QUAL_RESTRICT) != 0)
907 /* Nonzero if this type is const-qualified, but not
908 volatile-qualified. Other qualifiers are ignored. This macro is
909 used to test whether or not it is OK to bind an rvalue to a
911 #define CP_TYPE_CONST_NON_VOLATILE_P(NODE) \
912 ((cp_type_quals (NODE) & (TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE)) \
915 #define FUNCTION_ARG_CHAIN(NODE) \
916 TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (NODE)))
918 /* Given a FUNCTION_DECL, returns the first TREE_LIST out of TYPE_ARG_TYPES
919 which refers to a user-written parameter. */
920 #define FUNCTION_FIRST_USER_PARMTYPE(NODE) \
921 skip_artificial_parms_for ((NODE), TYPE_ARG_TYPES (TREE_TYPE (NODE)))
923 /* Similarly, but for DECL_ARGUMENTS. */
924 #define FUNCTION_FIRST_USER_PARM(NODE) \
925 skip_artificial_parms_for ((NODE), DECL_ARGUMENTS (NODE))
927 #define PROMOTES_TO_AGGR_TYPE(NODE, CODE) \
928 (((CODE) == TREE_CODE (NODE) \
929 && IS_AGGR_TYPE (TREE_TYPE (NODE))) \
930 || IS_AGGR_TYPE (NODE))
932 /* Nonzero iff TYPE is derived from PARENT. Ignores accessibility and
934 #define DERIVED_FROM_P(PARENT, TYPE) \
935 (lookup_base ((TYPE), (PARENT), ba_any, NULL) != NULL_TREE)
936 /* Nonzero iff TYPE is uniquely derived from PARENT. Ignores
938 #define UNIQUELY_DERIVED_FROM_P(PARENT, TYPE) \
939 (lookup_base ((TYPE), (PARENT), ba_unique | ba_quiet, NULL) != NULL_TREE)
940 /* Nonzero iff TYPE is publicly & uniquely derived from PARENT. */
941 #define PUBLICLY_UNIQUELY_DERIVED_P(PARENT, TYPE) \
942 (lookup_base ((TYPE), (PARENT), ba_ignore_scope | ba_check | ba_quiet, \
945 /* Gives the visibility specification for a class type. */
946 #define CLASSTYPE_VISIBILITY(TYPE) \
947 DECL_VISIBILITY (TYPE_NAME (TYPE))
948 #define CLASSTYPE_VISIBILITY_SPECIFIED(TYPE) \
949 DECL_VISIBILITY_SPECIFIED (TYPE_NAME (TYPE))
951 typedef struct tree_pair_s GTY (())
956 typedef tree_pair_s *tree_pair_p;
957 DEF_VEC_O (tree_pair_s);
958 DEF_VEC_ALLOC_O (tree_pair_s,gc);
960 /* This is a few header flags for 'struct lang_type'. Actually,
961 all but the first are used only for lang_type_class; they
962 are put in this structure to save space. */
963 struct lang_type_header GTY(())
965 BOOL_BITFIELD is_lang_type_class : 1;
967 BOOL_BITFIELD has_type_conversion : 1;
968 BOOL_BITFIELD has_init_ref : 1;
969 BOOL_BITFIELD has_default_ctor : 1;
970 BOOL_BITFIELD const_needs_init : 1;
971 BOOL_BITFIELD ref_needs_init : 1;
972 BOOL_BITFIELD has_const_assign_ref : 1;
974 BOOL_BITFIELD spare : 1;
977 /* This structure provides additional information above and beyond
978 what is provide in the ordinary tree_type. In the past, we used it
979 for the types of class types, template parameters types, typename
980 types, and so forth. However, there can be many (tens to hundreds
981 of thousands) of template parameter types in a compilation, and
982 there's no need for this additional information in that case.
983 Therefore, we now use this data structure only for class types.
985 In the past, it was thought that there would be relatively few
986 class types. However, in the presence of heavy use of templates,
987 many (i.e., thousands) of classes can easily be generated.
988 Therefore, we should endeavor to keep the size of this structure to
990 struct lang_type_class GTY(())
992 struct lang_type_header h;
996 unsigned has_mutable : 1;
997 unsigned com_interface : 1;
998 unsigned non_pod_class : 1;
999 unsigned nearly_empty_p : 1;
1000 unsigned user_align : 1;
1001 unsigned has_assign_ref : 1;
1002 unsigned has_new : 1;
1003 unsigned has_array_new : 1;
1005 unsigned gets_delete : 2;
1006 unsigned interface_only : 1;
1007 unsigned interface_unknown : 1;
1008 unsigned contains_empty_class_p : 1;
1009 unsigned anon_aggr : 1;
1010 unsigned non_zero_init : 1;
1011 unsigned empty_p : 1;
1013 unsigned vec_new_uses_cookie : 1;
1014 unsigned declared_class : 1;
1015 unsigned diamond_shaped : 1;
1016 unsigned repeated_base : 1;
1017 unsigned being_defined : 1;
1018 unsigned java_interface : 1;
1019 unsigned debug_requested : 1;
1020 unsigned fields_readonly : 1;
1022 unsigned use_template : 2;
1023 unsigned ptrmemfunc_flag : 1;
1024 unsigned was_anonymous : 1;
1025 unsigned lazy_default_ctor : 1;
1026 unsigned lazy_copy_ctor : 1;
1027 unsigned lazy_assignment_op : 1;
1028 unsigned lazy_destructor : 1;
1030 unsigned has_const_init_ref : 1;
1031 unsigned has_complex_init_ref : 1;
1032 unsigned has_complex_assign_ref : 1;
1033 unsigned non_aggregate : 1;
1035 /* When adding a flag here, consider whether or not it ought to
1036 apply to a template instance if it applies to the template. If
1037 so, make sure to copy it in instantiate_class_template! */
1039 /* There are some bits left to fill out a 32-bit word. Keep track
1040 of this by updating the size of this bitfield whenever you add or
1042 unsigned dummy : 12;
1045 VEC(tree_pair_s,gc) *vcall_indices;
1048 VEC(tree,gc) *vbases;
1049 binding_table nested_udts;
1051 VEC(tree,gc) *pure_virtuals;
1052 tree friend_classes;
1053 VEC(tree,gc) * GTY((reorder ("resort_type_method_vec"))) methods;
1057 tree befriending_classes;
1058 /* In a RECORD_TYPE, information specific to Objective-C++, such
1059 as a list of adopted protocols or a pointer to a corresponding
1060 @interface. See objc/objc-act.h for details. */
1064 struct lang_type_ptrmem GTY(())
1066 struct lang_type_header h;
1070 struct lang_type GTY(())
1074 struct lang_type_header GTY((skip (""))) h;
1075 struct lang_type_class GTY((tag ("1"))) c;
1076 struct lang_type_ptrmem GTY((tag ("0"))) ptrmem;
1077 } GTY((desc ("%h.h.is_lang_type_class"))) u;
1080 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1082 #define LANG_TYPE_CLASS_CHECK(NODE) __extension__ \
1083 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1084 if (! lt->u.h.is_lang_type_class) \
1085 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1088 #define LANG_TYPE_PTRMEM_CHECK(NODE) __extension__ \
1089 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1090 if (lt->u.h.is_lang_type_class) \
1091 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1096 #define LANG_TYPE_CLASS_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.c)
1097 #define LANG_TYPE_PTRMEM_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.ptrmem)
1099 #endif /* ENABLE_TREE_CHECKING */
1101 /* Indicates whether or not (and how) a template was expanded for this class.
1102 0=no information yet/non-template class
1103 1=implicit template instantiation
1104 2=explicit template specialization
1105 3=explicit template instantiation */
1106 #define CLASSTYPE_USE_TEMPLATE(NODE) \
1107 (LANG_TYPE_CLASS_CHECK (NODE)->use_template)
1109 /* Fields used for storing information before the class is defined.
1110 After the class is defined, these fields hold other information. */
1112 /* VEC(tree) of friends which were defined inline in this class
1114 #define CLASSTYPE_INLINE_FRIENDS(NODE) CLASSTYPE_PURE_VIRTUALS (NODE)
1116 /* Nonzero for _CLASSTYPE means that operator delete is defined. */
1117 #define TYPE_GETS_DELETE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->gets_delete)
1118 #define TYPE_GETS_REG_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 1)
1120 /* Nonzero if `new NODE[x]' should cause the allocation of extra
1121 storage to indicate how many array elements are in use. */
1122 #define TYPE_VEC_NEW_USES_COOKIE(NODE) \
1123 (CLASS_TYPE_P (NODE) \
1124 && LANG_TYPE_CLASS_CHECK (NODE)->vec_new_uses_cookie)
1126 /* Nonzero means that this _CLASSTYPE node defines ways of converting
1127 itself to other types. */
1128 #define TYPE_HAS_CONVERSION(NODE) \
1129 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_type_conversion)
1131 /* Nonzero means that NODE (a class type) has a default constructor --
1132 but that it has not yet been declared. */
1133 #define CLASSTYPE_LAZY_DEFAULT_CTOR(NODE) \
1134 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_default_ctor)
1136 /* Nonzero means that NODE (a class type) has a copy constructor --
1137 but that it has not yet been declared. */
1138 #define CLASSTYPE_LAZY_COPY_CTOR(NODE) \
1139 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_ctor)
1141 /* Nonzero means that NODE (a class type) has an assignment operator
1142 -- but that it has not yet been declared. */
1143 #define CLASSTYPE_LAZY_ASSIGNMENT_OP(NODE) \
1144 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_assignment_op)
1146 /* Nonzero means that NODE (a class type) has a destructor -- but that
1147 it has not yet been declared. */
1148 #define CLASSTYPE_LAZY_DESTRUCTOR(NODE) \
1149 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_destructor)
1151 /* Nonzero means that this _CLASSTYPE node overloads operator=(X&). */
1152 #define TYPE_HAS_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_assign_ref)
1154 /* True iff the class type NODE has an "operator =" whose parameter
1155 has a parameter of type "const X&". */
1156 #define TYPE_HAS_CONST_ASSIGN_REF(NODE) \
1157 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_const_assign_ref)
1159 /* Nonzero means that this _CLASSTYPE node has an X(X&) constructor. */
1160 #define TYPE_HAS_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->h.has_init_ref)
1161 #define TYPE_HAS_CONST_INIT_REF(NODE) \
1162 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_init_ref)
1164 /* Nonzero if this class defines an overloaded operator new. (An
1165 operator new [] doesn't count.) */
1166 #define TYPE_HAS_NEW_OPERATOR(NODE) \
1167 (LANG_TYPE_CLASS_CHECK (NODE)->has_new)
1169 /* Nonzero if this class defines an overloaded operator new[]. */
1170 #define TYPE_HAS_ARRAY_NEW_OPERATOR(NODE) \
1171 (LANG_TYPE_CLASS_CHECK (NODE)->has_array_new)
1173 /* Nonzero means that this type is being defined. I.e., the left brace
1174 starting the definition of this type has been seen. */
1175 #define TYPE_BEING_DEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->being_defined)
1177 /* Mark bits for repeated base checks. */
1178 #define TYPE_MARKED_P(NODE) TREE_LANG_FLAG_6 (TYPE_CHECK (NODE))
1180 /* Nonzero if the class NODE has multiple paths to the same (virtual)
1182 #define CLASSTYPE_DIAMOND_SHAPED_P(NODE) \
1183 (LANG_TYPE_CLASS_CHECK(NODE)->diamond_shaped)
1185 /* Nonzero if the class NODE has multiple instances of the same base
1187 #define CLASSTYPE_REPEATED_BASE_P(NODE) \
1188 (LANG_TYPE_CLASS_CHECK(NODE)->repeated_base)
1190 /* The member function with which the vtable will be emitted:
1191 the first noninline non-pure-virtual member function. NULL_TREE
1192 if there is no key function or if this is a class template */
1193 #define CLASSTYPE_KEY_METHOD(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->key_method)
1195 /* Vector member functions defined in this class. Each element is
1196 either a FUNCTION_DECL, a TEMPLATE_DECL, or an OVERLOAD. All
1197 functions with the same name end up in the same slot. The first
1198 two elements are for constructors, and destructors, respectively.
1199 All template conversion operators to innermost template dependent
1200 types are overloaded on the next slot, if they exist. Note, the
1201 names for these functions will not all be the same. The
1202 non-template conversion operators & templated conversions to
1203 non-innermost template types are next, followed by ordinary member
1204 functions. There may be empty entries at the end of the vector.
1205 The conversion operators are unsorted. The ordinary member
1206 functions are sorted, once the class is complete. */
1207 #define CLASSTYPE_METHOD_VEC(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->methods)
1209 /* For class templates, this is a TREE_LIST of all member data,
1210 functions, types, and friends in the order of declaration.
1211 The TREE_PURPOSE of each TREE_LIST is NULL_TREE for a friend,
1212 and the RECORD_TYPE for the class template otherwise. */
1213 #define CLASSTYPE_DECL_LIST(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->decl_list)
1215 /* The slot in the CLASSTYPE_METHOD_VEC where constructors go. */
1216 #define CLASSTYPE_CONSTRUCTOR_SLOT 0
1218 /* The slot in the CLASSTYPE_METHOD_VEC where destructors go. */
1219 #define CLASSTYPE_DESTRUCTOR_SLOT 1
1221 /* The first slot in the CLASSTYPE_METHOD_VEC where conversion
1222 operators can appear. */
1223 #define CLASSTYPE_FIRST_CONVERSION_SLOT 2
1225 /* A FUNCTION_DECL or OVERLOAD for the constructors for NODE. These
1226 are the constructors that take an in-charge parameter. */
1227 #define CLASSTYPE_CONSTRUCTORS(NODE) \
1228 (VEC_index (tree, CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_CONSTRUCTOR_SLOT))
1230 /* A FUNCTION_DECL for the destructor for NODE. These are the
1231 destructors that take an in-charge parameter. If
1232 CLASSTYPE_LAZY_DESTRUCTOR is true, then this entry will be NULL
1233 until the destructor is created with lazily_declare_fn. */
1234 #define CLASSTYPE_DESTRUCTORS(NODE) \
1235 (CLASSTYPE_METHOD_VEC (NODE) \
1236 ? VEC_index (tree, CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_DESTRUCTOR_SLOT) \
1239 /* A dictionary of the nested user-defined-types (class-types, or enums)
1240 found within this class. This table includes nested member class
1242 #define CLASSTYPE_NESTED_UTDS(NODE) \
1243 (LANG_TYPE_CLASS_CHECK (NODE)->nested_udts)
1245 /* Nonzero if NODE has a primary base class, i.e., a base class with
1246 which it shares the virtual function table pointer. */
1247 #define CLASSTYPE_HAS_PRIMARY_BASE_P(NODE) \
1248 (CLASSTYPE_PRIMARY_BINFO (NODE) != NULL_TREE)
1250 /* If non-NULL, this is the binfo for the primary base class, i.e.,
1251 the base class which contains the virtual function table pointer
1253 #define CLASSTYPE_PRIMARY_BINFO(NODE) \
1254 (LANG_TYPE_CLASS_CHECK (NODE)->primary_base)
1256 /* A vector of BINFOs for the direct and indirect virtual base classes
1257 that this type uses in a post-order depth-first left-to-right
1258 order. (In other words, these bases appear in the order that they
1259 should be initialized.) */
1260 #define CLASSTYPE_VBASECLASSES(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->vbases)
1262 /* The type corresponding to NODE when NODE is used as a base class,
1263 i.e., NODE without virtual base classes. */
1265 #define CLASSTYPE_AS_BASE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->as_base)
1267 /* True iff NODE is the CLASSTYPE_AS_BASE version of some type. */
1269 #define IS_FAKE_BASE_TYPE(NODE) \
1270 (TREE_CODE (NODE) == RECORD_TYPE \
1271 && TYPE_CONTEXT (NODE) && CLASS_TYPE_P (TYPE_CONTEXT (NODE)) \
1272 && CLASSTYPE_AS_BASE (TYPE_CONTEXT (NODE)) == (NODE))
1274 /* These are the size and alignment of the type without its virtual
1275 base classes, for when we use this type as a base itself. */
1276 #define CLASSTYPE_SIZE(NODE) TYPE_SIZE (CLASSTYPE_AS_BASE (NODE))
1277 #define CLASSTYPE_SIZE_UNIT(NODE) TYPE_SIZE_UNIT (CLASSTYPE_AS_BASE (NODE))
1278 #define CLASSTYPE_ALIGN(NODE) TYPE_ALIGN (CLASSTYPE_AS_BASE (NODE))
1279 #define CLASSTYPE_USER_ALIGN(NODE) TYPE_USER_ALIGN (CLASSTYPE_AS_BASE (NODE))
1281 /* The alignment of NODE, without its virtual bases, in bytes. */
1282 #define CLASSTYPE_ALIGN_UNIT(NODE) \
1283 (CLASSTYPE_ALIGN (NODE) / BITS_PER_UNIT)
1285 /* True if this a Java interface type, declared with
1286 '__attribute__ ((java_interface))'. */
1287 #define TYPE_JAVA_INTERFACE(NODE) \
1288 (LANG_TYPE_CLASS_CHECK (NODE)->java_interface)
1290 /* A VEC(tree) of virtual functions which cannot be inherited by
1291 derived classes. When deriving from this type, the derived
1292 class must provide its own definition for each of these functions. */
1293 #define CLASSTYPE_PURE_VIRTUALS(NODE) \
1294 (LANG_TYPE_CLASS_CHECK (NODE)->pure_virtuals)
1296 /* Nonzero means that this type has an X() constructor. */
1297 #define TYPE_HAS_DEFAULT_CONSTRUCTOR(NODE) \
1298 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_default_ctor)
1300 /* Nonzero means that this type contains a mutable member. */
1301 #define CLASSTYPE_HAS_MUTABLE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_mutable)
1302 #define TYPE_HAS_MUTABLE_P(NODE) (cp_has_mutable_p (NODE))
1304 /* Nonzero means that this class type is a non-POD class. */
1305 #define CLASSTYPE_NON_POD_P(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->non_pod_class)
1307 /* Nonzero means that this class contains pod types whose default
1308 initialization is not a zero initialization (namely, pointers to
1310 #define CLASSTYPE_NON_ZERO_INIT_P(NODE) \
1311 (LANG_TYPE_CLASS_CHECK (NODE)->non_zero_init)
1313 /* Nonzero if this class is "empty" in the sense of the C++ ABI. */
1314 #define CLASSTYPE_EMPTY_P(NODE) \
1315 (LANG_TYPE_CLASS_CHECK (NODE)->empty_p)
1317 /* Nonzero if this class is "nearly empty", i.e., contains only a
1318 virtual function table pointer. */
1319 #define CLASSTYPE_NEARLY_EMPTY_P(NODE) \
1320 (LANG_TYPE_CLASS_CHECK (NODE)->nearly_empty_p)
1322 /* Nonzero if this class contains an empty subobject. */
1323 #define CLASSTYPE_CONTAINS_EMPTY_CLASS_P(NODE) \
1324 (LANG_TYPE_CLASS_CHECK (NODE)->contains_empty_class_p)
1326 /* A list of class types of which this type is a friend. The
1327 TREE_VALUE is normally a TYPE, but will be a TEMPLATE_DECL in the
1328 case of a template friend. */
1329 #define CLASSTYPE_FRIEND_CLASSES(NODE) \
1330 (LANG_TYPE_CLASS_CHECK (NODE)->friend_classes)
1332 /* A list of the classes which grant friendship to this class. */
1333 #define CLASSTYPE_BEFRIENDING_CLASSES(NODE) \
1334 (LANG_TYPE_CLASS_CHECK (NODE)->befriending_classes)
1336 /* Say whether this node was declared as a "class" or a "struct". */
1337 #define CLASSTYPE_DECLARED_CLASS(NODE) \
1338 (LANG_TYPE_CLASS_CHECK (NODE)->declared_class)
1340 /* Nonzero if this class has const members
1341 which have no specified initialization. */
1342 #define CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE) \
1343 (TYPE_LANG_SPECIFIC (NODE) \
1344 ? LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init : 0)
1345 #define SET_CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE, VALUE) \
1346 (LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init = (VALUE))
1348 /* Nonzero if this class has ref members
1349 which have no specified initialization. */
1350 #define CLASSTYPE_REF_FIELDS_NEED_INIT(NODE) \
1351 (TYPE_LANG_SPECIFIC (NODE) \
1352 ? LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init : 0)
1353 #define SET_CLASSTYPE_REF_FIELDS_NEED_INIT(NODE, VALUE) \
1354 (LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init = (VALUE))
1356 /* Nonzero if this class is included from a header file which employs
1357 `#pragma interface', and it is not included in its implementation file. */
1358 #define CLASSTYPE_INTERFACE_ONLY(NODE) \
1359 (LANG_TYPE_CLASS_CHECK (NODE)->interface_only)
1361 /* True if we have already determined whether or not vtables, VTTs,
1362 typeinfo, and other similar per-class data should be emitted in
1363 this translation unit. This flag does not indicate whether or not
1364 these items should be emitted; it only indicates that we know one
1365 way or the other. */
1366 #define CLASSTYPE_INTERFACE_KNOWN(NODE) \
1367 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown == 0)
1368 /* The opposite of CLASSTYPE_INTERFACE_KNOWN. */
1369 #define CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1370 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown)
1372 #define SET_CLASSTYPE_INTERFACE_UNKNOWN_X(NODE,X) \
1373 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = !!(X))
1374 #define SET_CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1375 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 1)
1376 #define SET_CLASSTYPE_INTERFACE_KNOWN(NODE) \
1377 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 0)
1379 /* Nonzero if a _DECL node requires us to output debug info for this class. */
1380 #define CLASSTYPE_DEBUG_REQUESTED(NODE) \
1381 (LANG_TYPE_CLASS_CHECK (NODE)->debug_requested)
1383 /* Additional macros for inheritance information. */
1385 /* Nonzero means that this class is on a path leading to a new vtable. */
1386 #define BINFO_VTABLE_PATH_MARKED(NODE) BINFO_FLAG_1 (NODE)
1388 /* Nonzero means B (a BINFO) has its own vtable. Any copies will not
1389 have this flag set. */
1390 #define BINFO_NEW_VTABLE_MARKED(B) (BINFO_FLAG_2 (B))
1392 /* Compare a BINFO_TYPE with another type for equality. For a binfo,
1393 this is functionally equivalent to using same_type_p, but
1394 measurably faster. At least one of the arguments must be a
1395 BINFO_TYPE. The other can be a BINFO_TYPE or a regular type. If
1396 BINFO_TYPE(T) ever stops being the main variant of the class the
1397 binfo is for, this macro must change. */
1398 #define SAME_BINFO_TYPE_P(A, B) ((A) == (B))
1400 /* Any subobject that needs a new vtable must have a vptr and must not
1401 be a non-virtual primary base (since it would then use the vtable from a
1402 derived class and never become non-primary.) */
1403 #define SET_BINFO_NEW_VTABLE_MARKED(B) \
1404 (BINFO_NEW_VTABLE_MARKED (B) = 1, \
1405 gcc_assert (!BINFO_PRIMARY_P (B) || BINFO_VIRTUAL_P (B)), \
1406 gcc_assert (TYPE_VFIELD (BINFO_TYPE (B))))
1408 /* Nonzero if this binfo is for a dependent base - one that should not
1410 #define BINFO_DEPENDENT_BASE_P(NODE) BINFO_FLAG_3 (NODE)
1412 /* Nonzero if this binfo has lost its primary base binfo (because that
1413 is a nearly-empty virtual base that has been taken by some other
1414 base in the complete hierarchy. */
1415 #define BINFO_LOST_PRIMARY_P(NODE) BINFO_FLAG_4 (NODE)
1417 /* Nonzero if this BINFO is a primary base class. */
1418 #define BINFO_PRIMARY_P(NODE) BINFO_FLAG_5(NODE)
1420 /* Used by various search routines. */
1421 #define IDENTIFIER_MARKED(NODE) TREE_LANG_FLAG_0 (NODE)
1423 /* A VEC(tree_pair_s) of the vcall indices associated with the class
1424 NODE. The PURPOSE of each element is a FUNCTION_DECL for a virtual
1425 function. The VALUE is the index into the virtual table where the
1426 vcall offset for that function is stored, when NODE is a virtual
1428 #define CLASSTYPE_VCALL_INDICES(NODE) \
1429 (LANG_TYPE_CLASS_CHECK (NODE)->vcall_indices)
1431 /* The various vtables for the class NODE. The primary vtable will be
1432 first, followed by the construction vtables and VTT, if any. */
1433 #define CLASSTYPE_VTABLES(NODE) \
1434 (LANG_TYPE_CLASS_CHECK (NODE)->vtables)
1436 /* The std::type_info variable representing this class, or NULL if no
1437 such variable has been created. This field is only set for the
1438 TYPE_MAIN_VARIANT of the class. */
1439 #define CLASSTYPE_TYPEINFO_VAR(NODE) \
1440 (LANG_TYPE_CLASS_CHECK (NODE)->typeinfo_var)
1442 /* Accessor macros for the BINFO_VIRTUALS list. */
1444 /* The number of bytes by which to adjust the `this' pointer when
1445 calling this virtual function. Subtract this value from the this
1446 pointer. Always non-NULL, might be constant zero though. */
1447 #define BV_DELTA(NODE) (TREE_PURPOSE (NODE))
1449 /* If non-NULL, the vtable index at which to find the vcall offset
1450 when calling this virtual function. Add the value at that vtable
1451 index to the this pointer. */
1452 #define BV_VCALL_INDEX(NODE) (TREE_TYPE (NODE))
1454 /* The function to call. */
1455 #define BV_FN(NODE) (TREE_VALUE (NODE))
1458 /* For FUNCTION_TYPE or METHOD_TYPE, a list of the exceptions that
1459 this type can raise. Each TREE_VALUE is a _TYPE. The TREE_VALUE
1460 will be NULL_TREE to indicate a throw specification of `()', or
1461 no exceptions allowed. */
1462 #define TYPE_RAISES_EXCEPTIONS(NODE) TYPE_LANG_SLOT_1 (NODE)
1464 /* For FUNCTION_TYPE or METHOD_TYPE, return 1 iff it is declared `throw()'. */
1465 #define TYPE_NOTHROW_P(NODE) \
1466 (TYPE_RAISES_EXCEPTIONS (NODE) \
1467 && TREE_VALUE (TYPE_RAISES_EXCEPTIONS (NODE)) == NULL_TREE)
1469 /* The binding level associated with the namespace. */
1470 #define NAMESPACE_LEVEL(NODE) \
1471 (DECL_LANG_SPECIFIC (NODE)->decl_flags.u.level)
1474 /* If a DECL has DECL_LANG_SPECIFIC, it is either a lang_decl_flags or
1475 a lang_decl (which has lang_decl_flags as its initial prefix).
1476 This macro is nonzero for tree nodes whose DECL_LANG_SPECIFIC is
1477 the full lang_decl, and not just lang_decl_flags. Keep these
1478 checks in ascending code order. */
1479 #define CAN_HAVE_FULL_LANG_DECL_P(NODE) \
1480 (!(TREE_CODE (NODE) == FIELD_DECL \
1481 || TREE_CODE (NODE) == VAR_DECL \
1482 || TREE_CODE (NODE) == CONST_DECL \
1483 || TREE_CODE (NODE) == USING_DECL))
1485 struct lang_decl_flags GTY(())
1487 ENUM_BITFIELD(languages) language : 4;
1488 unsigned global_ctor_p : 1;
1489 unsigned global_dtor_p : 1;
1490 unsigned anticipated_p : 1;
1491 unsigned template_conv_p : 1;
1493 unsigned operator_attr : 1;
1494 unsigned constructor_attr : 1;
1495 unsigned destructor_attr : 1;
1496 unsigned friend_attr : 1;
1497 unsigned static_function : 1;
1498 unsigned pure_virtual : 1;
1499 unsigned has_in_charge_parm_p : 1;
1500 unsigned has_vtt_parm_p : 1;
1502 unsigned deferred : 1;
1503 unsigned use_template : 2;
1504 unsigned nonconverting : 1;
1505 unsigned not_really_extern : 1;
1506 unsigned initialized_in_class : 1;
1507 unsigned assignment_operator_p : 1;
1511 unsigned can_be_full : 1;
1512 unsigned thunk_p : 1;
1513 unsigned this_thunk_p : 1;
1514 unsigned repo_available_p : 1;
1515 unsigned hidden_friend_p : 1;
1519 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
1521 In a FUNCTION_DECL for which DECL_THUNK_P does not hold,
1522 VAR_DECL, TYPE_DECL, or TEMPLATE_DECL, this is
1523 DECL_TEMPLATE_INFO. */
1524 tree GTY ((tag ("0"))) template_info;
1526 /* In a NAMESPACE_DECL, this is NAMESPACE_LEVEL. */
1527 struct cp_binding_level * GTY ((tag ("1"))) level;
1528 } GTY ((desc ("%1.u1sel"))) u;
1530 union lang_decl_u2 {
1531 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
1532 THUNK_VIRTUAL_OFFSET.
1533 Otherwise this is DECL_ACCESS. */
1534 tree GTY ((tag ("0"))) access;
1536 /* For VAR_DECL in function, this is DECL_DISCRIMINATOR. */
1537 int GTY ((tag ("1"))) discriminator;
1538 } GTY ((desc ("%1.u2sel"))) u2;
1541 /* sorted_fields is sorted based on a pointer, so we need to be able
1542 to resort it if pointers get rearranged. */
1544 struct lang_decl GTY(())
1546 struct lang_decl_flags decl_flags;
1550 struct full_lang_decl
1552 /* In an overloaded operator, this is the value of
1553 DECL_OVERLOADED_OPERATOR_P. */
1554 ENUM_BITFIELD (tree_code) operator_code : 8;
1557 unsigned pending_inline_p : 1;
1558 unsigned spare : 22;
1560 /* For a non-thunk function decl, this is a tree list of
1561 friendly classes. For a thunk function decl, it is the
1562 thunked to function decl. */
1563 tree befriending_classes;
1565 /* For a non-virtual FUNCTION_DECL, this is
1566 DECL_FRIEND_CONTEXT. For a virtual FUNCTION_DECL for which
1567 DECL_THIS_THUNK_P does not hold, this is DECL_THUNKS. Both
1568 this pointer and result pointer adjusting thunks are
1569 chained here. This pointer thunks to return pointer thunks
1570 will be chained on the return pointer thunk. */
1575 /* In a non-thunk FUNCTION_DECL or TEMPLATE_DECL, this is
1576 DECL_CLONED_FUNCTION. */
1577 tree GTY ((tag ("0"))) cloned_function;
1579 /* In a FUNCTION_DECL for which THUNK_P holds this is the
1580 THUNK_FIXED_OFFSET. */
1581 HOST_WIDE_INT GTY ((tag ("1"))) fixed_offset;
1582 } GTY ((desc ("%0.decl_flags.thunk_p"))) u5;
1586 struct sorted_fields_type * GTY ((tag ("0"), reorder ("resort_sorted_fields")))
1588 struct cp_token_cache * GTY ((tag ("2"))) pending_inline_info;
1589 struct language_function * GTY ((tag ("1")))
1590 saved_language_function;
1591 } GTY ((desc ("%1.u3sel + %1.pending_inline_p"))) u;
1592 } GTY ((tag ("1"))) f;
1593 } GTY ((desc ("%1.decl_flags.can_be_full"))) u;
1596 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1598 #define LANG_DECL_U2_CHECK(NODE, TF) __extension__ \
1599 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
1600 if (lt->decl_flags.u2sel != TF) \
1601 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1602 <->decl_flags.u2; })
1606 #define LANG_DECL_U2_CHECK(NODE, TF) \
1607 (&DECL_LANG_SPECIFIC (NODE)->decl_flags.u2)
1609 #endif /* ENABLE_TREE_CHECKING */
1611 /* For a FUNCTION_DECL or a VAR_DECL, the language linkage for the
1612 declaration. Some entities (like a member function in a local
1613 class, or a local variable) do not have linkage at all, and this
1614 macro should not be used in those cases.
1616 Implementation note: A FUNCTION_DECL without DECL_LANG_SPECIFIC was
1617 created by language-independent code, and has C linkage. Most
1618 VAR_DECLs have C++ linkage, and do not have DECL_LANG_SPECIFIC, but
1619 we do create DECL_LANG_SPECIFIC for variables with non-C++ linkage. */
1620 #define DECL_LANGUAGE(NODE) \
1621 (DECL_LANG_SPECIFIC (NODE) \
1622 ? DECL_LANG_SPECIFIC (NODE)->decl_flags.language \
1623 : (TREE_CODE (NODE) == FUNCTION_DECL \
1624 ? lang_c : lang_cplusplus))
1626 /* Set the language linkage for NODE to LANGUAGE. */
1627 #define SET_DECL_LANGUAGE(NODE, LANGUAGE) \
1628 (DECL_LANG_SPECIFIC (NODE)->decl_flags.language = (LANGUAGE))
1630 /* For FUNCTION_DECLs: nonzero means that this function is a constructor. */
1631 #define DECL_CONSTRUCTOR_P(NODE) \
1632 (DECL_LANG_SPECIFIC (NODE)->decl_flags.constructor_attr)
1634 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a complete
1636 #define DECL_COMPLETE_CONSTRUCTOR_P(NODE) \
1637 (DECL_CONSTRUCTOR_P (NODE) \
1638 && DECL_NAME (NODE) == complete_ctor_identifier)
1640 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a base
1642 #define DECL_BASE_CONSTRUCTOR_P(NODE) \
1643 (DECL_CONSTRUCTOR_P (NODE) \
1644 && DECL_NAME (NODE) == base_ctor_identifier)
1646 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor, but not either the
1647 specialized in-charge constructor or the specialized not-in-charge
1649 #define DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P(NODE) \
1650 (DECL_CONSTRUCTOR_P (NODE) && !DECL_CLONED_FUNCTION_P (NODE))
1652 /* Nonzero if NODE (a FUNCTION_DECL) is a copy constructor. */
1653 #define DECL_COPY_CONSTRUCTOR_P(NODE) \
1654 (DECL_CONSTRUCTOR_P (NODE) && copy_fn_p (NODE) > 0)
1656 /* Nonzero if NODE is a destructor. */
1657 #define DECL_DESTRUCTOR_P(NODE) \
1658 (DECL_LANG_SPECIFIC (NODE)->decl_flags.destructor_attr)
1660 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor, but not the
1661 specialized in-charge constructor, in-charge deleting constructor,
1662 or the base destructor. */
1663 #define DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P(NODE) \
1664 (DECL_DESTRUCTOR_P (NODE) && !DECL_CLONED_FUNCTION_P (NODE))
1666 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
1668 #define DECL_COMPLETE_DESTRUCTOR_P(NODE) \
1669 (DECL_DESTRUCTOR_P (NODE) \
1670 && DECL_NAME (NODE) == complete_dtor_identifier)
1672 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a base
1674 #define DECL_BASE_DESTRUCTOR_P(NODE) \
1675 (DECL_DESTRUCTOR_P (NODE) \
1676 && DECL_NAME (NODE) == base_dtor_identifier)
1678 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
1679 object that deletes the object after it has been destroyed. */
1680 #define DECL_DELETING_DESTRUCTOR_P(NODE) \
1681 (DECL_DESTRUCTOR_P (NODE) \
1682 && DECL_NAME (NODE) == deleting_dtor_identifier)
1684 /* Nonzero if NODE (a FUNCTION_DECL) is a cloned constructor or
1686 #define DECL_CLONED_FUNCTION_P(NODE) \
1687 ((TREE_CODE (NODE) == FUNCTION_DECL \
1688 || TREE_CODE (NODE) == TEMPLATE_DECL) \
1689 && DECL_LANG_SPECIFIC (NODE) \
1690 && !DECL_LANG_SPECIFIC (NODE)->decl_flags.thunk_p \
1691 && DECL_CLONED_FUNCTION (NODE) != NULL_TREE)
1693 /* If DECL_CLONED_FUNCTION_P holds, this is the function that was
1695 #define DECL_CLONED_FUNCTION(NODE) \
1696 (DECL_LANG_SPECIFIC (NON_THUNK_FUNCTION_CHECK(NODE))->u.f.u5.cloned_function)
1698 /* Perform an action for each clone of FN, if FN is a function with
1699 clones. This macro should be used like:
1701 FOR_EACH_CLONE (clone, fn)
1705 #define FOR_EACH_CLONE(CLONE, FN) \
1706 if (TREE_CODE (FN) == FUNCTION_DECL \
1707 && (DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (FN) \
1708 || DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (FN))) \
1709 for (CLONE = TREE_CHAIN (FN); \
1710 CLONE && DECL_CLONED_FUNCTION_P (CLONE); \
1711 CLONE = TREE_CHAIN (CLONE))
1713 /* Nonzero if NODE has DECL_DISCRIMINATOR and not DECL_ACCESS. */
1714 #define DECL_DISCRIMINATOR_P(NODE) \
1715 (TREE_CODE (NODE) == VAR_DECL \
1716 && DECL_FUNCTION_SCOPE_P (NODE))
1718 /* Discriminator for name mangling. */
1719 #define DECL_DISCRIMINATOR(NODE) (LANG_DECL_U2_CHECK (NODE, 1)->discriminator)
1721 /* Nonzero if the VTT parm has been added to NODE. */
1722 #define DECL_HAS_VTT_PARM_P(NODE) \
1723 (DECL_LANG_SPECIFIC (NODE)->decl_flags.has_vtt_parm_p)
1725 /* Nonzero if NODE is a FUNCTION_DECL for which a VTT parameter is
1727 #define DECL_NEEDS_VTT_PARM_P(NODE) \
1728 (CLASSTYPE_VBASECLASSES (DECL_CONTEXT (NODE)) \
1729 && (DECL_BASE_CONSTRUCTOR_P (NODE) \
1730 || DECL_BASE_DESTRUCTOR_P (NODE)))
1732 /* Nonzero if NODE is a user-defined conversion operator. */
1733 #define DECL_CONV_FN_P(NODE) \
1734 (DECL_NAME (NODE) && IDENTIFIER_TYPENAME_P (DECL_NAME (NODE)))
1736 /* If FN is a conversion operator, the type to which it converts.
1737 Otherwise, NULL_TREE. */
1738 #define DECL_CONV_FN_TYPE(FN) \
1739 (DECL_CONV_FN_P (FN) ? TREE_TYPE (DECL_NAME (FN)) : NULL_TREE)
1741 /* Nonzero if NODE, which is a TEMPLATE_DECL, is a template
1742 conversion operator to a type dependent on the innermost template
1744 #define DECL_TEMPLATE_CONV_FN_P(NODE) \
1745 (DECL_LANG_SPECIFIC (NODE)->decl_flags.template_conv_p)
1747 /* Set the overloaded operator code for NODE to CODE. */
1748 #define SET_OVERLOADED_OPERATOR_CODE(NODE, CODE) \
1749 (DECL_LANG_SPECIFIC (NODE)->u.f.operator_code = (CODE))
1751 /* If NODE is an overloaded operator, then this returns the TREE_CODE
1752 associated with the overloaded operator.
1753 DECL_ASSIGNMENT_OPERATOR_P must also be checked to determine
1754 whether or not NODE is an assignment operator. If NODE is not an
1755 overloaded operator, ERROR_MARK is returned. Since the numerical
1756 value of ERROR_MARK is zero, this macro can be used as a predicate
1757 to test whether or not NODE is an overloaded operator. */
1758 #define DECL_OVERLOADED_OPERATOR_P(NODE) \
1759 (IDENTIFIER_OPNAME_P (DECL_NAME (NODE)) \
1760 ? DECL_LANG_SPECIFIC (NODE)->u.f.operator_code : ERROR_MARK)
1762 /* Nonzero if NODE is an assignment operator. */
1763 #define DECL_ASSIGNMENT_OPERATOR_P(NODE) \
1764 (DECL_LANG_SPECIFIC (NODE)->decl_flags.assignment_operator_p)
1766 /* For FUNCTION_DECLs: nonzero means that this function is a
1767 constructor or a destructor with an extra in-charge parameter to
1768 control whether or not virtual bases are constructed. */
1769 #define DECL_HAS_IN_CHARGE_PARM_P(NODE) \
1770 (DECL_LANG_SPECIFIC (NODE)->decl_flags.has_in_charge_parm_p)
1772 /* Nonzero if DECL is a declaration of __builtin_constant_p. */
1773 #define DECL_IS_BUILTIN_CONSTANT_P(NODE) \
1774 (TREE_CODE (NODE) == FUNCTION_DECL \
1775 && DECL_BUILT_IN_CLASS (NODE) == BUILT_IN_NORMAL \
1776 && DECL_FUNCTION_CODE (NODE) == BUILT_IN_CONSTANT_P)
1778 /* Nonzero for _DECL means that this decl appears in (or will appear
1779 in) as a member in a RECORD_TYPE or UNION_TYPE node. It is also for
1780 detecting circularity in case members are multiply defined. In the
1781 case of a VAR_DECL, it is also used to determine how program storage
1782 should be allocated. */
1783 #define DECL_IN_AGGR_P(NODE) (DECL_LANG_FLAG_3 (NODE))
1785 /* Nonzero for a VAR_DECL means that the variable's initialization has
1787 #define DECL_INITIALIZED_P(NODE) \
1788 (TREE_LANG_FLAG_1 (VAR_DECL_CHECK (NODE)))
1790 /* Nonzero for a VAR_DECL that was initialized with a
1791 constant-expression. */
1792 #define DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P(NODE) \
1793 (TREE_LANG_FLAG_2 (VAR_DECL_CHECK (NODE)))
1795 /* Nonzero for a VAR_DECL that can be used in an integral constant
1800 An integral constant-expression can only involve ... const
1801 variables of static or enumeration types initialized with
1802 constant expressions ...
1804 The standard does not require that the expression be non-volatile.
1805 G++ implements the proposed correction in DR 457. */
1806 #define DECL_INTEGRAL_CONSTANT_VAR_P(NODE) \
1807 (TREE_CODE (NODE) == VAR_DECL \
1808 && CP_TYPE_CONST_NON_VOLATILE_P (TREE_TYPE (NODE)) \
1809 && INTEGRAL_OR_ENUMERATION_TYPE_P (TREE_TYPE (NODE)) \
1810 && DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (NODE))
1812 /* Nonzero if the DECL was initialized in the class definition itself,
1813 rather than outside the class. This is used for both static member
1814 VAR_DECLS, and FUNTION_DECLS that are defined in the class. */
1815 #define DECL_INITIALIZED_IN_CLASS_P(DECL) \
1816 (DECL_LANG_SPECIFIC (DECL)->decl_flags.initialized_in_class)
1818 /* Nonzero for DECL means that this decl is just a friend declaration,
1819 and should not be added to the list of members for this class. */
1820 #define DECL_FRIEND_P(NODE) (DECL_LANG_SPECIFIC (NODE)->decl_flags.friend_attr)
1822 /* A TREE_LIST of the types which have befriended this FUNCTION_DECL. */
1823 #define DECL_BEFRIENDING_CLASSES(NODE) \
1824 (DECL_LANG_SPECIFIC (NODE)->u.f.befriending_classes)
1826 /* Nonzero for FUNCTION_DECL means that this decl is a static
1828 #define DECL_STATIC_FUNCTION_P(NODE) \
1829 (DECL_LANG_SPECIFIC (NODE)->decl_flags.static_function)
1831 /* Nonzero for FUNCTION_DECL means that this decl is a non-static
1833 #define DECL_NONSTATIC_MEMBER_FUNCTION_P(NODE) \
1834 (TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE)
1836 /* Nonzero for FUNCTION_DECL means that this decl is a member function
1837 (static or non-static). */
1838 #define DECL_FUNCTION_MEMBER_P(NODE) \
1839 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) || DECL_STATIC_FUNCTION_P (NODE))
1841 /* Nonzero for FUNCTION_DECL means that this member function
1842 has `this' as const X *const. */
1843 #define DECL_CONST_MEMFUNC_P(NODE) \
1844 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
1845 && CP_TYPE_CONST_P (TREE_TYPE (TREE_VALUE \
1846 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
1848 /* Nonzero for FUNCTION_DECL means that this member function
1849 has `this' as volatile X *const. */
1850 #define DECL_VOLATILE_MEMFUNC_P(NODE) \
1851 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
1852 && CP_TYPE_VOLATILE_P (TREE_TYPE (TREE_VALUE \
1853 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
1855 /* Nonzero for a DECL means that this member is a non-static member. */
1856 #define DECL_NONSTATIC_MEMBER_P(NODE) \
1857 ((TREE_CODE (NODE) == FUNCTION_DECL \
1858 && DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE)) \
1859 || TREE_CODE (NODE) == FIELD_DECL)
1861 /* Nonzero for _DECL means that this member object type
1863 #define DECL_MUTABLE_P(NODE) (DECL_LANG_FLAG_0 (NODE))
1865 /* Nonzero for _DECL means that this constructor is a non-converting
1867 #define DECL_NONCONVERTING_P(NODE) \
1868 (DECL_LANG_SPECIFIC (NODE)->decl_flags.nonconverting)
1870 /* Nonzero for FUNCTION_DECL means that this member function is a pure
1871 virtual function. */
1872 #define DECL_PURE_VIRTUAL_P(NODE) \
1873 (DECL_LANG_SPECIFIC (NODE)->decl_flags.pure_virtual)
1875 /* True (in a FUNCTION_DECL) if NODE is a virtual function that is an
1876 invalid overrider for a function from a base class. Once we have
1877 complained about an invalid overrider we avoid complaining about it
1879 #define DECL_INVALID_OVERRIDER_P(NODE) \
1880 (DECL_LANG_FLAG_4 (NODE))
1882 /* The thunks associated with NODE, a FUNCTION_DECL. */
1883 #define DECL_THUNKS(NODE) \
1884 (DECL_LANG_SPECIFIC (NODE)->u.f.context)
1886 /* Nonzero if NODE is a thunk, rather than an ordinary function. */
1887 #define DECL_THUNK_P(NODE) \
1888 (TREE_CODE (NODE) == FUNCTION_DECL \
1889 && DECL_LANG_SPECIFIC (NODE) \
1890 && DECL_LANG_SPECIFIC (NODE)->decl_flags.thunk_p)
1892 /* Set DECL_THUNK_P for node. */
1893 #define SET_DECL_THUNK_P(NODE, THIS_ADJUSTING) \
1894 (DECL_LANG_SPECIFIC (NODE)->decl_flags.thunk_p = 1, \
1895 DECL_LANG_SPECIFIC (NODE)->u.f.u3sel = 1, \
1896 DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p = (THIS_ADJUSTING))
1898 /* Nonzero if NODE is a this pointer adjusting thunk. */
1899 #define DECL_THIS_THUNK_P(NODE) \
1900 (DECL_THUNK_P (NODE) && DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p)
1902 /* Nonzero if NODE is a result pointer adjusting thunk. */
1903 #define DECL_RESULT_THUNK_P(NODE) \
1904 (DECL_THUNK_P (NODE) && !DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p)
1906 /* Nonzero if NODE is a FUNCTION_DECL, but not a thunk. */
1907 #define DECL_NON_THUNK_FUNCTION_P(NODE) \
1908 (TREE_CODE (NODE) == FUNCTION_DECL && !DECL_THUNK_P (NODE))
1910 /* Nonzero if NODE is `extern "C"'. */
1911 #define DECL_EXTERN_C_P(NODE) \
1912 (DECL_LANGUAGE (NODE) == lang_c)
1914 /* Nonzero if NODE is an `extern "C"' function. */
1915 #define DECL_EXTERN_C_FUNCTION_P(NODE) \
1916 (DECL_NON_THUNK_FUNCTION_P (NODE) && DECL_EXTERN_C_P (NODE))
1918 /* True iff DECL is an entity with vague linkage whose definition is
1919 available in this translation unit. */
1920 #define DECL_REPO_AVAILABLE_P(NODE) \
1921 (DECL_LANG_SPECIFIC (NODE)->decl_flags.repo_available_p)
1923 /* Nonzero if this DECL is the __PRETTY_FUNCTION__ variable in a
1924 template function. */
1925 #define DECL_PRETTY_FUNCTION_P(NODE) \
1926 (TREE_LANG_FLAG_0 (VAR_DECL_CHECK (NODE)))
1928 /* The _TYPE context in which this _DECL appears. This field holds the
1929 class where a virtual function instance is actually defined. */
1930 #define DECL_CLASS_CONTEXT(NODE) \
1931 (DECL_CLASS_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : NULL_TREE)
1933 /* For a non-member friend function, the class (if any) in which this
1934 friend was defined. For example, given:
1936 struct S { friend void f (); };
1938 the DECL_FRIEND_CONTEXT for `f' will be `S'. */
1939 #define DECL_FRIEND_CONTEXT(NODE) \
1940 ((DECL_FRIEND_P (NODE) && !DECL_FUNCTION_MEMBER_P (NODE)) \
1941 ? DECL_LANG_SPECIFIC (NODE)->u.f.context \
1944 /* Set the DECL_FRIEND_CONTEXT for NODE to CONTEXT. */
1945 #define SET_DECL_FRIEND_CONTEXT(NODE, CONTEXT) \
1946 (DECL_LANG_SPECIFIC (NODE)->u.f.context = (CONTEXT))
1948 /* NULL_TREE in DECL_CONTEXT represents the global namespace. */
1949 #define CP_DECL_CONTEXT(NODE) \
1950 (DECL_CONTEXT (NODE) ? DECL_CONTEXT (NODE) : global_namespace)
1951 #define FROB_CONTEXT(NODE) ((NODE) == global_namespace ? NULL_TREE : (NODE))
1953 /* 1 iff NODE has namespace scope, including the global namespace. */
1954 #define DECL_NAMESPACE_SCOPE_P(NODE) \
1955 (!DECL_TEMPLATE_PARM_P (NODE) \
1956 && TREE_CODE (CP_DECL_CONTEXT (NODE)) == NAMESPACE_DECL)
1958 /* 1 iff NODE is a class member. */
1959 #define DECL_CLASS_SCOPE_P(NODE) \
1960 (DECL_CONTEXT (NODE) && TYPE_P (DECL_CONTEXT (NODE)))
1962 /* 1 iff NODE is function-local. */
1963 #define DECL_FUNCTION_SCOPE_P(NODE) \
1964 (DECL_CONTEXT (NODE) \
1965 && TREE_CODE (DECL_CONTEXT (NODE)) == FUNCTION_DECL)
1967 /* 1 iff VAR_DECL node NODE is a type-info decl. This flag is set for
1968 both the primary typeinfo object and the associated NTBS name. */
1969 #define DECL_TINFO_P(NODE) TREE_LANG_FLAG_4 (VAR_DECL_CHECK (NODE))
1971 /* 1 iff VAR_DECL node NODE is virtual table or VTT. */
1972 #define DECL_VTABLE_OR_VTT_P(NODE) TREE_LANG_FLAG_5 (VAR_DECL_CHECK (NODE))
1974 /* Returns 1 iff VAR_DECL is a construction virtual table.
1975 DECL_VTABLE_OR_VTT_P will be true in this case and must be checked
1976 before using this macro. */
1977 #define DECL_CONSTRUCTION_VTABLE_P(NODE) \
1978 TREE_LANG_FLAG_6 (VAR_DECL_CHECK (NODE))
1980 /* 1 iff NODE is function-local, but for types. */
1981 #define LOCAL_CLASS_P(NODE) \
1982 (decl_function_context (TYPE_MAIN_DECL (NODE)) != NULL_TREE)
1984 /* For a NAMESPACE_DECL: the list of using namespace directives
1985 The PURPOSE is the used namespace, the value is the namespace
1986 that is the common ancestor. */
1987 #define DECL_NAMESPACE_USING(NODE) DECL_VINDEX (NAMESPACE_DECL_CHECK (NODE))
1989 /* In a NAMESPACE_DECL, the DECL_INITIAL is used to record all users
1990 of a namespace, to record the transitive closure of using namespace. */
1991 #define DECL_NAMESPACE_USERS(NODE) DECL_INITIAL (NAMESPACE_DECL_CHECK (NODE))
1993 /* In a NAMESPACE_DECL, the list of namespaces which have associated
1994 themselves with this one. */
1995 #define DECL_NAMESPACE_ASSOCIATIONS(NODE) \
1996 (NAMESPACE_DECL_CHECK (NODE)->decl_non_common.saved_tree)
1998 /* In a NAMESPACE_DECL, points to the original namespace if this is
1999 a namespace alias. */
2000 #define DECL_NAMESPACE_ALIAS(NODE) \
2001 DECL_ABSTRACT_ORIGIN (NAMESPACE_DECL_CHECK (NODE))
2002 #define ORIGINAL_NAMESPACE(NODE) \
2003 (DECL_NAMESPACE_ALIAS (NODE) ? DECL_NAMESPACE_ALIAS (NODE) : (NODE))
2005 /* Nonzero if NODE is the std namespace. */
2006 #define DECL_NAMESPACE_STD_P(NODE) \
2007 (TREE_CODE (NODE) == NAMESPACE_DECL \
2008 && CP_DECL_CONTEXT (NODE) == global_namespace \
2009 && DECL_NAME (NODE) == std_identifier)
2011 /* In a TREE_LIST concatenating using directives, indicate indirect
2013 #define TREE_INDIRECT_USING(NODE) (TREE_LIST_CHECK (NODE)->common.lang_flag_0)
2015 extern tree decl_shadowed_for_var_lookup (tree);
2016 extern void decl_shadowed_for_var_insert (tree, tree);
2018 /* Non zero if this is a using decl for a dependent scope. */
2019 #define DECL_DEPENDENT_P(NODE) DECL_LANG_FLAG_0 (USING_DECL_CHECK (NODE))
2021 /* The scope named in a using decl. */
2022 #define USING_DECL_SCOPE(NODE) TREE_TYPE (USING_DECL_CHECK (NODE))
2024 /* The decls named by a using decl. */
2025 #define USING_DECL_DECLS(NODE) DECL_INITIAL (USING_DECL_CHECK (NODE))
2027 /* In a VAR_DECL, true if we have a shadowed local variable
2028 in the shadowed var table for this VAR_DECL. */
2029 #define DECL_HAS_SHADOWED_FOR_VAR_P(NODE) \
2030 (VAR_DECL_CHECK (NODE)->decl_with_vis.shadowed_for_var_p)
2032 /* In a VAR_DECL for a variable declared in a for statement,
2033 this is the shadowed (local) variable. */
2034 #define DECL_SHADOWED_FOR_VAR(NODE) \
2035 (DECL_HAS_SHADOWED_FOR_VAR_P(NODE) ? decl_shadowed_for_var_lookup (NODE) : NULL)
2037 #define SET_DECL_SHADOWED_FOR_VAR(NODE, VAL) \
2038 (decl_shadowed_for_var_insert (NODE, VAL))
2040 /* In a FUNCTION_DECL, this is nonzero if this function was defined in
2041 the class definition. We have saved away the text of the function,
2042 but have not yet processed it. */
2043 #define DECL_PENDING_INLINE_P(NODE) \
2044 (DECL_LANG_SPECIFIC (NODE)->u.f.pending_inline_p)
2046 /* If DECL_PENDING_INLINE_P holds, this is the saved text of the
2048 #define DECL_PENDING_INLINE_INFO(NODE) \
2049 (DECL_LANG_SPECIFIC (NODE)->u.f.u.pending_inline_info)
2051 /* For a TYPE_DECL: if this structure has many fields, we'll sort them
2052 and put them into a TREE_VEC. */
2053 #define DECL_SORTED_FIELDS(NODE) \
2054 (DECL_LANG_SPECIFIC (TYPE_DECL_CHECK (NODE))->u.f.u.sorted_fields)
2056 /* True if on the deferred_fns (see decl2.c) list. */
2057 #define DECL_DEFERRED_FN(DECL) \
2058 (DECL_LANG_SPECIFIC (DECL)->decl_flags.deferred)
2060 /* If non-NULL for a VAR_DECL, FUNCTION_DECL, TYPE_DECL or
2061 TEMPLATE_DECL, the entity is a template specialization. In that
2062 case, DECL_TEMPLATE_INFO is a TREE_LIST, whose TREE_PURPOSE is the
2063 TEMPLATE_DECL of which this entity is a specialization. The TREE_
2064 TREE_VALUE is the template arguments used to specialize the
2067 In general, DECL_TEMPLATE_INFO is non-NULL only if
2068 DECL_USE_TEMPLATE is nonzero. However, for friends, we sometimes
2069 have DECL_TEMPLATE_INFO even when DECL_USE_TEMPLATE is zero.
2072 template <typename T> struct S { friend void f(T) {} };
2074 In this case, S<int>::f is, from the point of view of the compiler,
2075 an instantiation of a template -- but, from the point of view of
2076 the language, each instantiation of S results in a wholly unrelated
2077 global function f. */
2078 #define DECL_TEMPLATE_INFO(NODE) \
2079 (DECL_LANG_SPECIFIC (VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK (NODE)) \
2080 ->decl_flags.u.template_info)
2082 /* For a VAR_DECL, indicates that the variable has been processed.
2083 This flag is set and unset throughout the code; it is always
2084 used for a temporary purpose. */
2085 #define DECL_VAR_MARKED_P(NODE) \
2086 (DECL_LANG_FLAG_4 (VAR_DECL_CHECK (NODE)))
2088 /* Template information for a RECORD_TYPE or UNION_TYPE. */
2089 #define CLASSTYPE_TEMPLATE_INFO(NODE) \
2090 (LANG_TYPE_CLASS_CHECK (RECORD_OR_UNION_CHECK (NODE))->template_info)
2092 /* Template information for an ENUMERAL_TYPE. Although an enumeration may
2093 not be a primary template, it may be declared within the scope of a
2094 primary template and the enumeration constants may depend on
2095 non-type template parameters. */
2096 #define ENUM_TEMPLATE_INFO(NODE) \
2097 (TYPE_LANG_SLOT_1 (ENUMERAL_TYPE_CHECK (NODE)))
2099 /* Template information for a template template parameter. */
2100 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO(NODE) \
2101 (LANG_TYPE_CLASS_CHECK (BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK (NODE)) \
2104 /* Template information for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2105 #define TYPE_TEMPLATE_INFO(NODE) \
2106 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2107 ? ENUM_TEMPLATE_INFO (NODE) : \
2108 (TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM \
2109 ? TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO (NODE) : \
2110 (TYPE_LANG_SPECIFIC (NODE) \
2111 ? CLASSTYPE_TEMPLATE_INFO (NODE) \
2114 /* Set the template information for an ENUMERAL_, RECORD_, or
2115 UNION_TYPE to VAL. */
2116 #define SET_TYPE_TEMPLATE_INFO(NODE, VAL) \
2117 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2118 ? (ENUM_TEMPLATE_INFO (NODE) = (VAL)) \
2119 : (CLASSTYPE_TEMPLATE_INFO (NODE) = (VAL)))
2121 #define TI_TEMPLATE(NODE) (TREE_PURPOSE (NODE))
2122 #define TI_ARGS(NODE) (TREE_VALUE (NODE))
2123 #define TI_PENDING_TEMPLATE_FLAG(NODE) TREE_LANG_FLAG_1 (NODE)
2125 /* We use TREE_VECs to hold template arguments. If there is only one
2126 level of template arguments, then the TREE_VEC contains the
2127 arguments directly. If there is more than one level of template
2128 arguments, then each entry in the TREE_VEC is itself a TREE_VEC,
2129 containing the template arguments for a single level. The first
2130 entry in the outer TREE_VEC is the outermost level of template
2131 parameters; the last is the innermost.
2133 It is incorrect to ever form a template argument vector containing
2134 only one level of arguments, but which is a TREE_VEC containing as
2135 its only entry the TREE_VEC for that level. */
2137 /* Nonzero if the template arguments is actually a vector of vectors,
2138 rather than just a vector. */
2139 #define TMPL_ARGS_HAVE_MULTIPLE_LEVELS(NODE) \
2140 (NODE && TREE_VEC_ELT (NODE, 0) \
2141 && TREE_CODE (TREE_VEC_ELT (NODE, 0)) == TREE_VEC)
2143 /* The depth of a template argument vector. When called directly by
2144 the parser, we use a TREE_LIST rather than a TREE_VEC to represent
2145 template arguments. In fact, we may even see NULL_TREE if there
2146 are no template arguments. In both of those cases, there is only
2147 one level of template arguments. */
2148 #define TMPL_ARGS_DEPTH(NODE) \
2149 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (NODE) ? TREE_VEC_LENGTH (NODE) : 1)
2151 /* The LEVELth level of the template ARGS. The outermost level of
2152 args is level 1, not level 0. */
2153 #define TMPL_ARGS_LEVEL(ARGS, LEVEL) \
2154 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (ARGS) \
2155 ? TREE_VEC_ELT (ARGS, (LEVEL) - 1) : (ARGS))
2157 /* Set the LEVELth level of the template ARGS to VAL. This macro does
2158 not work with single-level argument vectors. */
2159 #define SET_TMPL_ARGS_LEVEL(ARGS, LEVEL, VAL) \
2160 (TREE_VEC_ELT (ARGS, (LEVEL) - 1) = (VAL))
2162 /* Accesses the IDXth parameter in the LEVELth level of the ARGS. */
2163 #define TMPL_ARG(ARGS, LEVEL, IDX) \
2164 (TREE_VEC_ELT (TMPL_ARGS_LEVEL (ARGS, LEVEL), IDX))
2166 /* Given a single level of template arguments in NODE, return the
2167 number of arguments. */
2168 #define NUM_TMPL_ARGS(NODE) \
2169 (TREE_VEC_LENGTH (NODE))
2171 /* Returns the innermost level of template arguments in ARGS. */
2172 #define INNERMOST_TEMPLATE_ARGS(NODE) \
2173 (get_innermost_template_args ((NODE), 1))
2175 /* The number of levels of template parameters given by NODE. */
2176 #define TMPL_PARMS_DEPTH(NODE) \
2177 ((HOST_WIDE_INT) TREE_INT_CST_LOW (TREE_PURPOSE (NODE)))
2179 /* The TEMPLATE_DECL instantiated or specialized by NODE. This
2180 TEMPLATE_DECL will be the immediate parent, not the most general
2181 template. For example, in:
2183 template <class T> struct S { template <class U> void f(U); }
2185 the FUNCTION_DECL for S<int>::f<double> will have, as its
2186 DECL_TI_TEMPLATE, `template <class U> S<int>::f<U>'.
2188 As a special case, for a member friend template of a template
2189 class, this value will not be a TEMPLATE_DECL, but rather an
2190 IDENTIFIER_NODE or OVERLOAD indicating the name of the template and
2191 any explicit template arguments provided. For example, in:
2193 template <class T> struct S { friend void f<int>(int, double); }
2195 the DECL_TI_TEMPLATE will be an IDENTIFIER_NODE for `f' and the
2196 DECL_TI_ARGS will be {int}. */
2197 #define DECL_TI_TEMPLATE(NODE) TI_TEMPLATE (DECL_TEMPLATE_INFO (NODE))
2199 /* The template arguments used to obtain this decl from the most
2200 general form of DECL_TI_TEMPLATE. For the example given for
2201 DECL_TI_TEMPLATE, the DECL_TI_ARGS will be {int, double}. These
2202 are always the full set of arguments required to instantiate this
2203 declaration from the most general template specialized here. */
2204 #define DECL_TI_ARGS(NODE) TI_ARGS (DECL_TEMPLATE_INFO (NODE))
2205 #define CLASSTYPE_TI_TEMPLATE(NODE) TI_TEMPLATE (CLASSTYPE_TEMPLATE_INFO (NODE))
2206 #define CLASSTYPE_TI_ARGS(NODE) TI_ARGS (CLASSTYPE_TEMPLATE_INFO (NODE))
2208 /* For a template instantiation TYPE, returns the TYPE corresponding
2209 to the primary template. Otherwise returns TYPE itself. */
2210 #define CLASSTYPE_PRIMARY_TEMPLATE_TYPE(TYPE) \
2211 ((CLASSTYPE_USE_TEMPLATE ((TYPE)) \
2212 && !CLASSTYPE_TEMPLATE_SPECIALIZATION ((TYPE))) \
2213 ? TREE_TYPE (DECL_TEMPLATE_RESULT (DECL_PRIMARY_TEMPLATE \
2214 (CLASSTYPE_TI_TEMPLATE ((TYPE))))) \
2217 /* Like DECL_TI_TEMPLATE, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2218 #define TYPE_TI_TEMPLATE(NODE) \
2219 (TI_TEMPLATE (TYPE_TEMPLATE_INFO (NODE)))
2221 /* Like DECL_TI_ARGS, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2222 #define TYPE_TI_ARGS(NODE) \
2223 (TI_ARGS (TYPE_TEMPLATE_INFO (NODE)))
2225 #define INNERMOST_TEMPLATE_PARMS(NODE) TREE_VALUE (NODE)
2227 /* Nonzero if NODE (a TEMPLATE_DECL) is a member template, in the
2228 sense of [temp.mem]. */
2229 #define DECL_MEMBER_TEMPLATE_P(NODE) \
2230 (DECL_LANG_FLAG_1 (TEMPLATE_DECL_CHECK (NODE)))
2232 /* Nonzero if the NODE corresponds to the template parameters for a
2233 member template, whose inline definition is being processed after
2234 the class definition is complete. */
2235 #define TEMPLATE_PARMS_FOR_INLINE(NODE) TREE_LANG_FLAG_1 (NODE)
2237 /* In a FUNCTION_DECL, the saved language-specific per-function data. */
2238 #define DECL_SAVED_FUNCTION_DATA(NODE) \
2239 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (NODE)) \
2240 ->u.f.u.saved_language_function)
2242 /* Indicates an indirect_expr is for converting a reference. */
2243 #define REFERENCE_REF_P(NODE) \
2244 TREE_LANG_FLAG_0 (INDIRECT_REF_CHECK (NODE))
2246 #define NEW_EXPR_USE_GLOBAL(NODE) \
2247 TREE_LANG_FLAG_0 (NEW_EXPR_CHECK (NODE))
2248 #define DELETE_EXPR_USE_GLOBAL(NODE) \
2249 TREE_LANG_FLAG_0 (DELETE_EXPR_CHECK (NODE))
2250 #define DELETE_EXPR_USE_VEC(NODE) \
2251 TREE_LANG_FLAG_1 (DELETE_EXPR_CHECK (NODE))
2253 /* Indicates that this is a non-dependent COMPOUND_EXPR which will
2254 resolve to a function call. */
2255 #define COMPOUND_EXPR_OVERLOADED(NODE) \
2256 TREE_LANG_FLAG_0 (COMPOUND_EXPR_CHECK (NODE))
2258 /* In a CALL_EXPR appearing in a template, true if Koenig lookup
2259 should be performed at instantiation time. */
2260 #define KOENIG_LOOKUP_P(NODE) TREE_LANG_FLAG_0 (CALL_EXPR_CHECK (NODE))
2262 /* Indicates whether a string literal has been parenthesized. Such
2263 usages are disallowed in certain circumstances. */
2265 #define PAREN_STRING_LITERAL_P(NODE) \
2266 TREE_LANG_FLAG_0 (STRING_CST_CHECK (NODE))
2268 /* Nonzero if this AGGR_INIT_EXPR provides for initialization via a
2269 constructor call, rather than an ordinary function call. */
2270 #define AGGR_INIT_VIA_CTOR_P(NODE) \
2271 TREE_LANG_FLAG_0 (AGGR_INIT_EXPR_CHECK (NODE))
2273 /* The TYPE_MAIN_DECL for a class template type is a TYPE_DECL, not a
2274 TEMPLATE_DECL. This macro determines whether or not a given class
2275 type is really a template type, as opposed to an instantiation or
2276 specialization of one. */
2277 #define CLASSTYPE_IS_TEMPLATE(NODE) \
2278 (CLASSTYPE_TEMPLATE_INFO (NODE) \
2279 && !CLASSTYPE_USE_TEMPLATE (NODE) \
2280 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE)))
2282 /* The name used by the user to name the typename type. Typically,
2283 this is an IDENTIFIER_NODE, and the same as the DECL_NAME on the
2284 corresponding TYPE_DECL. However, this may also be a
2285 TEMPLATE_ID_EXPR if we had something like `typename X::Y<T>'. */
2286 #define TYPENAME_TYPE_FULLNAME(NODE) (TYPENAME_TYPE_CHECK (NODE))->type.values
2288 /* True if a TYPENAME_TYPE was declared as an "enum". */
2289 #define TYPENAME_IS_ENUM_P(NODE) \
2290 (TREE_LANG_FLAG_0 (TYPENAME_TYPE_CHECK (NODE)))
2292 /* True if a TYPENAME_TYPE was declared as a "class", "struct", or
2294 #define TYPENAME_IS_CLASS_P(NODE) \
2295 (TREE_LANG_FLAG_1 (TYPENAME_TYPE_CHECK (NODE)))
2297 /* Nonzero in INTEGER_CST means that this int is negative by dint of
2298 using a twos-complement negated operand. */
2299 #define TREE_NEGATED_INT(NODE) TREE_LANG_FLAG_0 (INTEGER_CST_CHECK (NODE))
2303 A class that declares or inherits a virtual function is called a
2304 polymorphic class. */
2305 #define TYPE_POLYMORPHIC_P(NODE) (TREE_LANG_FLAG_2 (NODE))
2307 /* Nonzero if this class has a virtual function table pointer. */
2308 #define TYPE_CONTAINS_VPTR_P(NODE) \
2309 (TYPE_POLYMORPHIC_P (NODE) || CLASSTYPE_VBASECLASSES (NODE))
2311 /* This flag is true of a local VAR_DECL if it was declared in a for
2312 statement, but we are no longer in the scope of the for. */
2313 #define DECL_DEAD_FOR_LOCAL(NODE) DECL_LANG_FLAG_7 (VAR_DECL_CHECK (NODE))
2315 /* This flag is set on a VAR_DECL that is a DECL_DEAD_FOR_LOCAL
2316 if we already emitted a warning about using it. */
2317 #define DECL_ERROR_REPORTED(NODE) DECL_LANG_FLAG_0 (VAR_DECL_CHECK (NODE))
2319 /* Nonzero if NODE is a FUNCTION_DECL (for a function with global
2320 scope) declared in a local scope. */
2321 #define DECL_LOCAL_FUNCTION_P(NODE) \
2322 DECL_LANG_FLAG_0 (FUNCTION_DECL_CHECK (NODE))
2324 /* Nonzero if NODE is a DECL which we know about but which has not
2325 been explicitly declared, such as a built-in function or a friend
2326 declared inside a class. In the latter case DECL_HIDDEN_FRIEND_P
2328 #define DECL_ANTICIPATED(NODE) \
2329 (DECL_LANG_SPECIFIC (DECL_COMMON_CHECK (NODE))->decl_flags.anticipated_p)
2331 /* Nonzero if NODE is a FUNCTION_DECL which was declared as a friend
2332 within a class but has not been declared in the surrounding scope.
2333 The function is invisible except via argument dependent lookup. */
2334 #define DECL_HIDDEN_FRIEND_P(NODE) \
2335 (DECL_LANG_SPECIFIC (DECL_COMMON_CHECK (NODE))->decl_flags.hidden_friend_p)
2337 /* Record whether a typedef for type `int' was actually `signed int'. */
2338 #define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP)
2340 /* Returns nonzero if DECL has external linkage, as specified by the
2341 language standard. (This predicate may hold even when the
2342 corresponding entity is not actually given external linkage in the
2343 object file; see decl_linkage for details.) */
2344 #define DECL_EXTERNAL_LINKAGE_P(DECL) \
2345 (decl_linkage (DECL) == lk_external)
2347 /* Keep these codes in ascending code order. CHAR_TYPE is used here
2348 to completely fill the range. */
2350 #define INTEGRAL_CODE_P(CODE) \
2351 ((CODE) == ENUMERAL_TYPE || (CODE) == BOOLEAN_TYPE \
2352 || (CODE) == CHAR_TYPE || (CODE) == INTEGER_TYPE)
2354 /* [basic.fundamental]
2356 Types bool, char, wchar_t, and the signed and unsigned integer types
2357 are collectively called integral types.
2359 Note that INTEGRAL_TYPE_P, as defined in tree.h, allows enumeration
2360 types as well, which is incorrect in C++. Keep these checks in
2361 ascending code order. CHAR_TYPE is added to complete the interval of
2363 #define CP_INTEGRAL_TYPE_P(TYPE) \
2364 (TREE_CODE (TYPE) == BOOLEAN_TYPE \
2365 || TREE_CODE (TYPE) == CHAR_TYPE \
2366 || TREE_CODE (TYPE) == INTEGER_TYPE)
2368 /* Returns true if TYPE is an integral or enumeration name. Keep
2369 these checks in ascending code order. */
2370 #define INTEGRAL_OR_ENUMERATION_TYPE_P(TYPE) \
2371 (TREE_CODE (TYPE) == ENUMERAL_TYPE || CP_INTEGRAL_TYPE_P (TYPE))
2373 /* [basic.fundamental]
2375 Integral and floating types are collectively called arithmetic
2376 types. Keep these checks in ascending code order. */
2377 #define ARITHMETIC_TYPE_P(TYPE) \
2378 (CP_INTEGRAL_TYPE_P (TYPE) || TREE_CODE (TYPE) == REAL_TYPE)
2382 Arithmetic types, enumeration types, pointer types, and
2383 pointer-to-member types, are collectively called scalar types.
2384 Keep these checks in ascending code order. */
2385 #define SCALAR_TYPE_P(TYPE) \
2386 (TYPE_PTRMEM_P (TYPE) \
2387 || TREE_CODE (TYPE) == ENUMERAL_TYPE \
2388 || ARITHMETIC_TYPE_P (TYPE) \
2389 || TYPE_PTR_P (TYPE) \
2390 || TYPE_PTRMEMFUNC_P (TYPE))
2394 An aggregate is an array or a class with no user-declared
2395 constructors, no private or protected non-static data members, no
2396 base classes, and no virtual functions.
2398 As an extension, we also treat vectors as aggregates. Keep these
2399 checks in ascending code order. */
2400 #define CP_AGGREGATE_TYPE_P(TYPE) \
2401 (TREE_CODE (TYPE) == VECTOR_TYPE \
2402 ||TREE_CODE (TYPE) == ARRAY_TYPE \
2403 || (CLASS_TYPE_P (TYPE) && !CLASSTYPE_NON_AGGREGATE (TYPE)))
2405 /* Nonzero for a class type means that the class type has a
2406 user-declared constructor. */
2407 #define TYPE_HAS_CONSTRUCTOR(NODE) (TYPE_LANG_FLAG_1 (NODE))
2409 /* When appearing in an INDIRECT_REF, it means that the tree structure
2410 underneath is actually a call to a constructor. This is needed
2411 when the constructor must initialize local storage (which can
2412 be automatically destroyed), rather than allowing it to allocate
2413 space from the heap.
2415 When appearing in a SAVE_EXPR, it means that underneath
2416 is a call to a constructor.
2418 When appearing in a CONSTRUCTOR, the expression is a
2421 When appearing in a FIELD_DECL, it means that this field
2422 has been duly initialized in its constructor. */
2423 #define TREE_HAS_CONSTRUCTOR(NODE) (TREE_LANG_FLAG_4 (NODE))
2425 /* True if NODE is a brace-enclosed initializer. */
2426 #define BRACE_ENCLOSED_INITIALIZER_P(NODE) \
2427 (TREE_CODE (NODE) == CONSTRUCTOR && !TREE_TYPE (NODE))
2429 #define EMPTY_CONSTRUCTOR_P(NODE) (TREE_CODE (NODE) == CONSTRUCTOR \
2430 && VEC_empty (constructor_elt, \
2431 CONSTRUCTOR_ELTS (NODE)) \
2432 && !TREE_HAS_CONSTRUCTOR (NODE))
2434 /* Nonzero means that an object of this type can not be initialized using
2435 an initializer list. */
2436 #define CLASSTYPE_NON_AGGREGATE(NODE) \
2437 (LANG_TYPE_CLASS_CHECK (NODE)->non_aggregate)
2438 #define TYPE_NON_AGGREGATE_CLASS(NODE) \
2439 (IS_AGGR_TYPE (NODE) && CLASSTYPE_NON_AGGREGATE (NODE))
2441 /* Nonzero if there is a user-defined X::op=(x&) for this class. */
2442 #define TYPE_HAS_COMPLEX_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_assign_ref)
2443 #define TYPE_HAS_COMPLEX_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_init_ref)
2445 /* Nonzero if TYPE has a trivial destructor. From [class.dtor]:
2447 A destructor is trivial if it is an implicitly declared
2450 - all of the direct base classes of its class have trivial
2453 - for all of the non-static data members of its class that are
2454 of class type (or array thereof), each such class has a
2455 trivial destructor. */
2456 #define TYPE_HAS_TRIVIAL_DESTRUCTOR(NODE) \
2457 (!TYPE_HAS_NONTRIVIAL_DESTRUCTOR (NODE))
2459 /* Nonzero for _TYPE node means that this type does not have a trivial
2460 destructor. Therefore, destroying an object of this type will
2461 involve a call to a destructor. This can apply to objects of
2462 ARRAY_TYPE is the type of the elements needs a destructor. */
2463 #define TYPE_HAS_NONTRIVIAL_DESTRUCTOR(NODE) \
2464 (TYPE_LANG_FLAG_4 (NODE))
2466 /* Nonzero for class type means that copy initialization of this type can use
2468 #define TYPE_HAS_TRIVIAL_INIT_REF(NODE) \
2469 (TYPE_HAS_INIT_REF (NODE) && ! TYPE_HAS_COMPLEX_INIT_REF (NODE))
2471 /* Nonzero for class type means that assignment of this type can use
2473 #define TYPE_HAS_TRIVIAL_ASSIGN_REF(NODE) \
2474 (TYPE_HAS_ASSIGN_REF (NODE) && ! TYPE_HAS_COMPLEX_ASSIGN_REF (NODE))
2476 /* Returns true if NODE is a pointer-to-data-member. */
2477 #define TYPE_PTRMEM_P(NODE) \
2478 (TREE_CODE (NODE) == OFFSET_TYPE)
2479 /* Returns true if NODE is a pointer. */
2480 #define TYPE_PTR_P(NODE) \
2481 (TREE_CODE (NODE) == POINTER_TYPE)
2482 /* Returns true if NODE is a pointer to an object. Keep these checks
2483 in ascending tree code order. */
2484 #define TYPE_PTROB_P(NODE) \
2485 (TYPE_PTR_P (NODE) \
2486 && !(TREE_CODE (TREE_TYPE (NODE)) == VOID_TYPE \
2487 || TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE \
2488 || TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE))
2489 /* Returns true if NODE is a reference to an object. Keep these checks
2490 in ascending tree code order. */
2491 #define TYPE_REF_OBJ_P(NODE) \
2492 (TREE_CODE (NODE) == REFERENCE_TYPE \
2493 && !(TREE_CODE (TREE_TYPE (NODE)) == VOID_TYPE \
2494 || TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE \
2495 || TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE))
2496 /* Returns true if NODE is a pointer to an object, or a pointer to
2497 void. Keep these checks in ascending tree code order. */
2498 #define TYPE_PTROBV_P(NODE) \
2499 (TYPE_PTR_P (NODE) \
2500 && !(TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE \
2501 || TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE))
2502 /* Returns true if NODE is a pointer to function. */
2503 #define TYPE_PTRFN_P(NODE) \
2504 (TREE_CODE (NODE) == POINTER_TYPE \
2505 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
2506 /* Returns true if NODE is a reference to function. */
2507 #define TYPE_REFFN_P(NODE) \
2508 (TREE_CODE (NODE) == REFERENCE_TYPE \
2509 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
2511 /* Nonzero for _TYPE node means that this type is a pointer to member
2513 #define TYPE_PTRMEMFUNC_P(NODE) \
2514 (TREE_CODE (NODE) == RECORD_TYPE \
2515 && TYPE_LANG_SPECIFIC (NODE) \
2516 && TYPE_PTRMEMFUNC_FLAG (NODE))
2518 #define TYPE_PTRMEMFUNC_FLAG(NODE) \
2519 (LANG_TYPE_CLASS_CHECK (NODE)->ptrmemfunc_flag)
2521 /* Returns true if NODE is a pointer-to-member. */
2522 #define TYPE_PTR_TO_MEMBER_P(NODE) \
2523 (TYPE_PTRMEM_P (NODE) || TYPE_PTRMEMFUNC_P (NODE))
2525 /* Indicates when overload resolution may resolve to a pointer to
2526 member function. [expr.unary.op]/3 */
2527 #define PTRMEM_OK_P(NODE) \
2528 TREE_LANG_FLAG_0 (TREE_CHECK2 ((NODE), ADDR_EXPR, OFFSET_REF))
2530 /* Get the POINTER_TYPE to the METHOD_TYPE associated with this
2531 pointer to member function. TYPE_PTRMEMFUNC_P _must_ be true,
2532 before using this macro. */
2533 #define TYPE_PTRMEMFUNC_FN_TYPE(NODE) \
2534 (TREE_TYPE (TYPE_FIELDS (NODE)))
2536 /* Returns `A' for a type like `int (A::*)(double)' */
2537 #define TYPE_PTRMEMFUNC_OBJECT_TYPE(NODE) \
2538 TYPE_METHOD_BASETYPE (TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
2540 /* These are use to manipulate the canonical RECORD_TYPE from the
2541 hashed POINTER_TYPE, and can only be used on the POINTER_TYPE. */
2542 #define TYPE_GET_PTRMEMFUNC_TYPE(NODE) \
2543 (TYPE_LANG_SPECIFIC (NODE) ? LANG_TYPE_PTRMEM_CHECK (NODE)->record : NULL)
2544 #define TYPE_SET_PTRMEMFUNC_TYPE(NODE, VALUE) \
2546 if (TYPE_LANG_SPECIFIC (NODE) == NULL) \
2548 TYPE_LANG_SPECIFIC (NODE) = GGC_CNEWVAR \
2549 (struct lang_type, sizeof (struct lang_type_ptrmem)); \
2550 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.h.is_lang_type_class = 0; \
2552 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.record = (VALUE); \
2555 /* For a pointer-to-member type of the form `T X::*', this is `X'.
2556 For a type like `void (X::*)() const', this type is `X', not `const
2557 X'. To get at the `const X' you have to look at the
2558 TYPE_PTRMEM_POINTED_TO_TYPE; there, the first parameter will have
2560 #define TYPE_PTRMEM_CLASS_TYPE(NODE) \
2561 (TYPE_PTRMEM_P (NODE) \
2562 ? TYPE_OFFSET_BASETYPE (NODE) \
2563 : TYPE_PTRMEMFUNC_OBJECT_TYPE (NODE))
2565 /* For a pointer-to-member type of the form `T X::*', this is `T'. */
2566 #define TYPE_PTRMEM_POINTED_TO_TYPE(NODE) \
2567 (TYPE_PTRMEM_P (NODE) \
2568 ? TREE_TYPE (NODE) \
2569 : TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
2571 /* For a pointer-to-member constant `X::Y' this is the RECORD_TYPE for
2573 #define PTRMEM_CST_CLASS(NODE) \
2574 TYPE_PTRMEM_CLASS_TYPE (TREE_TYPE (PTRMEM_CST_CHECK (NODE)))
2576 /* For a pointer-to-member constant `X::Y' this is the _DECL for
2578 #define PTRMEM_CST_MEMBER(NODE) (((ptrmem_cst_t)PTRMEM_CST_CHECK (NODE))->member)
2580 /* The expression in question for a TYPEOF_TYPE. */
2581 #define TYPEOF_TYPE_EXPR(NODE) (TYPEOF_TYPE_CHECK (NODE))->type.values
2583 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `extern' was
2584 specified in its declaration. This can also be set for an
2585 erroneously declared PARM_DECL. */
2586 #define DECL_THIS_EXTERN(NODE) \
2587 DECL_LANG_FLAG_2 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
2589 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `static' was
2590 specified in its declaration. This can also be set for an
2591 erroneously declared PARM_DECL. */
2592 #define DECL_THIS_STATIC(NODE) \
2593 DECL_LANG_FLAG_6 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
2595 /* Nonzero for FIELD_DECL node means that this field is a base class
2596 of the parent object, as opposed to a member field. */
2597 #define DECL_FIELD_IS_BASE(NODE) \
2598 DECL_LANG_FLAG_6 (FIELD_DECL_CHECK (NODE))
2600 /* Nonzero if TYPE is an anonymous union or struct type. We have to use a
2601 flag for this because "A union for which objects or pointers are
2602 declared is not an anonymous union" [class.union]. */
2603 #define ANON_AGGR_TYPE_P(NODE) \
2604 (CLASS_TYPE_P (NODE) && LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr)
2605 #define SET_ANON_AGGR_TYPE_P(NODE) \
2606 (LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr = 1)
2608 /* Nonzero if TYPE is an anonymous union type. */
2609 #define ANON_UNION_TYPE_P(NODE) \
2610 (TREE_CODE (NODE) == UNION_TYPE && ANON_AGGR_TYPE_P (NODE))
2612 #define UNKNOWN_TYPE LANG_TYPE
2614 /* Define fields and accessors for nodes representing declared names. */
2616 #define TYPE_WAS_ANONYMOUS(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->was_anonymous)
2618 /* C++: all of these are overloaded! These apply only to TYPE_DECLs. */
2620 /* The format of each node in the DECL_FRIENDLIST is as follows:
2622 The TREE_PURPOSE will be the name of a function, i.e., an
2623 IDENTIFIER_NODE. The TREE_VALUE will be itself a TREE_LIST, whose
2624 TREE_VALUEs are friends with the given name. */
2625 #define DECL_FRIENDLIST(NODE) (DECL_INITIAL (NODE))
2626 #define FRIEND_NAME(LIST) (TREE_PURPOSE (LIST))
2627 #define FRIEND_DECLS(LIST) (TREE_VALUE (LIST))
2629 /* The DECL_ACCESS, if non-NULL, is a TREE_LIST. The TREE_PURPOSE of
2630 each node is a type; the TREE_VALUE is the access granted for this
2631 DECL in that type. The DECL_ACCESS is set by access declarations.
2632 For example, if a member that would normally be public in a
2633 derived class is made protected, then the derived class and the
2634 protected_access_node will appear in the DECL_ACCESS for the node. */
2635 #define DECL_ACCESS(NODE) (LANG_DECL_U2_CHECK (NODE, 0)->access)
2637 /* Nonzero if the FUNCTION_DECL is a global constructor. */
2638 #define DECL_GLOBAL_CTOR_P(NODE) \
2639 (DECL_LANG_SPECIFIC (NODE)->decl_flags.global_ctor_p)
2641 /* Nonzero if the FUNCTION_DECL is a global destructor. */
2642 #define DECL_GLOBAL_DTOR_P(NODE) \
2643 (DECL_LANG_SPECIFIC (NODE)->decl_flags.global_dtor_p)
2645 /* Accessor macros for C++ template decl nodes. */
2647 /* The DECL_TEMPLATE_PARMS are a list. The TREE_PURPOSE of each node
2648 is a INT_CST whose TREE_INT_CST_LOW indicates the level of the
2649 template parameters, with 1 being the outermost set of template
2650 parameters. The TREE_VALUE is a vector, whose elements are the
2651 template parameters at each level. Each element in the vector is a
2652 TREE_LIST, whose TREE_VALUE is a PARM_DECL (if the parameter is a
2653 non-type parameter), or a TYPE_DECL (if the parameter is a type
2654 parameter). The TREE_PURPOSE is the default value, if any. The
2655 TEMPLATE_PARM_INDEX for the parameter is available as the
2656 DECL_INITIAL (for a PARM_DECL) or as the TREE_TYPE (for a
2658 #define DECL_TEMPLATE_PARMS(NODE) DECL_NON_COMMON_CHECK (NODE)->decl_non_common.arguments
2659 #define DECL_INNERMOST_TEMPLATE_PARMS(NODE) \
2660 INNERMOST_TEMPLATE_PARMS (DECL_TEMPLATE_PARMS (NODE))
2661 #define DECL_NTPARMS(NODE) \
2662 TREE_VEC_LENGTH (DECL_INNERMOST_TEMPLATE_PARMS (NODE))
2663 /* For function, method, class-data templates. */
2664 #define DECL_TEMPLATE_RESULT(NODE) DECL_RESULT_FLD (NODE)
2665 /* For a static member variable template, the
2666 DECL_TEMPLATE_INSTANTIATIONS list contains the explicitly and
2667 implicitly generated instantiations of the variable. There are no
2668 partial instantiations of static member variables, so all of these
2669 will be full instantiations.
2671 For a class template the DECL_TEMPLATE_INSTANTIATIONS lists holds
2672 all instantiations and specializations of the class type, including
2673 partial instantiations and partial specializations.
2675 In both cases, the TREE_PURPOSE of each node contains the arguments
2676 used; the TREE_VALUE contains the generated variable. The template
2677 arguments are always complete. For example, given:
2679 template <class T> struct S1 {
2680 template <class U> struct S2 {};
2681 template <class U> struct S2<U*> {};
2684 the record for the partial specialization will contain, as its
2685 argument list, { {T}, {U*} }, and will be on the
2686 DECL_TEMPLATE_INSTANTIATIONS list for `template <class T> template
2687 <class U> struct S1<T>::S2'.
2689 This list is not used for function templates. */
2690 #define DECL_TEMPLATE_INSTANTIATIONS(NODE) DECL_VINDEX (NODE)
2691 /* For a function template, the DECL_TEMPLATE_SPECIALIZATIONS lists
2692 contains all instantiations and specializations of the function,
2693 including partial instantiations. For a partial instantiation
2694 which is a specialization, this list holds only full
2695 specializations of the template that are instantiations of the
2696 partial instantiation. For example, given:
2698 template <class T> struct S {
2699 template <class U> void f(U);
2700 template <> void f(T);
2703 the `S<int>::f<int>(int)' function will appear on the
2704 DECL_TEMPLATE_SPECIALIZATIONS list for both `template <class T>
2705 template <class U> void S<T>::f(U)' and `template <class T> void
2706 S<int>::f(T)'. In the latter case, however, it will have only the
2707 innermost set of arguments (T, in this case). The DECL_TI_TEMPLATE
2708 for the function declaration will point at the specialization, not
2709 the fully general template.
2711 For a class template, this list contains the partial
2712 specializations of this template. (Full specializations are not
2713 recorded on this list.) The TREE_PURPOSE holds the innermost
2714 arguments used in the partial specialization (e.g., for `template
2715 <class T> struct S<T*, int>' this will be `T*'.) The TREE_VALUE
2716 holds the innermost template parameters for the specialization
2717 (e.g., `T' in the example above.) The TREE_TYPE is the _TYPE node
2718 for the partial specialization.
2720 This list is not used for static variable templates. */
2721 #define DECL_TEMPLATE_SPECIALIZATIONS(NODE) DECL_SIZE (NODE)
2723 /* Nonzero for a DECL which is actually a template parameter. Keep
2724 these checks in ascending tree code order. */
2725 #define DECL_TEMPLATE_PARM_P(NODE) \
2726 (DECL_LANG_FLAG_0 (NODE) \
2727 && (TREE_CODE (NODE) == CONST_DECL \
2728 || TREE_CODE (NODE) == PARM_DECL \
2729 || TREE_CODE (NODE) == TYPE_DECL \
2730 || TREE_CODE (NODE) == TEMPLATE_DECL))
2732 /* Mark NODE as a template parameter. */
2733 #define SET_DECL_TEMPLATE_PARM_P(NODE) \
2734 (DECL_LANG_FLAG_0 (NODE) = 1)
2736 /* Nonzero if NODE is a template template parameter. */
2737 #define DECL_TEMPLATE_TEMPLATE_PARM_P(NODE) \
2738 (TREE_CODE (NODE) == TEMPLATE_DECL && DECL_TEMPLATE_PARM_P (NODE))
2740 /* Nonzero if NODE is a TEMPLATE_DECL representing an
2741 UNBOUND_CLASS_TEMPLATE tree node. */
2742 #define DECL_UNBOUND_CLASS_TEMPLATE_P(NODE) \
2743 (TREE_CODE (NODE) == TEMPLATE_DECL && !DECL_TEMPLATE_RESULT (NODE))
2745 #define DECL_FUNCTION_TEMPLATE_P(NODE) \
2746 (TREE_CODE (NODE) == TEMPLATE_DECL \
2747 && !DECL_UNBOUND_CLASS_TEMPLATE_P (NODE) \
2748 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == FUNCTION_DECL)
2750 /* Nonzero for a DECL that represents a template class. */
2751 #define DECL_CLASS_TEMPLATE_P(NODE) \
2752 (TREE_CODE (NODE) == TEMPLATE_DECL \
2753 && !DECL_UNBOUND_CLASS_TEMPLATE_P (NODE) \
2754 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == TYPE_DECL \
2755 && !DECL_TEMPLATE_TEMPLATE_PARM_P (NODE))
2757 /* Nonzero if NODE which declares a type. */
2758 #define DECL_DECLARES_TYPE_P(NODE) \
2759 (TREE_CODE (NODE) == TYPE_DECL || DECL_CLASS_TEMPLATE_P (NODE))
2761 /* Nonzero if NODE is the typedef implicitly generated for a type when
2762 the type is declared. In C++, `struct S {};' is roughly
2763 equivalent to `struct S {}; typedef struct S S;' in C.
2764 DECL_IMPLICIT_TYPEDEF_P will hold for the typedef indicated in this
2765 example. In C++, there is a second implicit typedef for each
2766 class, in the scope of `S' itself, so that you can say `S::S'.
2767 DECL_SELF_REFERENCE_P will hold for that second typedef. */
2768 #define DECL_IMPLICIT_TYPEDEF_P(NODE) \
2769 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_2 (NODE))
2770 #define SET_DECL_IMPLICIT_TYPEDEF_P(NODE) \
2771 (DECL_LANG_FLAG_2 (NODE) = 1)
2772 #define DECL_SELF_REFERENCE_P(NODE) \
2773 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_4 (NODE))
2774 #define SET_DECL_SELF_REFERENCE_P(NODE) \
2775 (DECL_LANG_FLAG_4 (NODE) = 1)
2777 /* A `primary' template is one that has its own template header. A
2778 member function of a class template is a template, but not primary.
2779 A member template is primary. Friend templates are primary, too. */
2781 /* Returns the primary template corresponding to these parameters. */
2782 #define DECL_PRIMARY_TEMPLATE(NODE) \
2783 (TREE_TYPE (DECL_INNERMOST_TEMPLATE_PARMS (NODE)))
2785 /* Returns nonzero if NODE is a primary template. */
2786 #define PRIMARY_TEMPLATE_P(NODE) (DECL_PRIMARY_TEMPLATE (NODE) == (NODE))
2788 /* Indicates whether or not (and how) a template was expanded for this
2789 FUNCTION_DECL or VAR_DECL.
2790 0=normal declaration, e.g. int min (int, int);
2791 1=implicit template instantiation
2792 2=explicit template specialization, e.g. int min<int> (int, int);
2793 3=explicit template instantiation, e.g. template int min<int> (int, int);
2795 If DECL_USE_TEMPLATE is nonzero, then DECL_TEMPLATE_INFO will also
2797 #define DECL_USE_TEMPLATE(NODE) (DECL_LANG_SPECIFIC (NODE)->decl_flags.use_template)
2799 #define DECL_TEMPLATE_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) & 1)
2800 #define CLASSTYPE_TEMPLATE_INSTANTIATION(NODE) \
2801 (CLASSTYPE_USE_TEMPLATE (NODE) & 1)
2803 #define DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) == 2)
2804 #define SET_DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) = 2)
2806 /* Returns true for an explicit or partial specialization of a class
2808 #define CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
2809 (CLASSTYPE_USE_TEMPLATE (NODE) == 2)
2810 #define SET_CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
2811 (CLASSTYPE_USE_TEMPLATE (NODE) = 2)
2813 #define DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 1)
2814 #define SET_DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 1)
2815 #define CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
2816 (CLASSTYPE_USE_TEMPLATE (NODE) == 1)
2817 #define SET_CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
2818 (CLASSTYPE_USE_TEMPLATE (NODE) = 1)
2820 #define DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 3)
2821 #define SET_DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 3)
2822 #define CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
2823 (CLASSTYPE_USE_TEMPLATE (NODE) == 3)
2824 #define SET_CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
2825 (CLASSTYPE_USE_TEMPLATE (NODE) = 3)
2827 /* Nonzero if DECL is a friend function which is an instantiation
2828 from the point of view of the compiler, but not from the point of
2829 view of the language. For example given:
2830 template <class T> struct S { friend void f(T) {}; };
2831 the declaration of `void f(int)' generated when S<int> is
2832 instantiated will not be a DECL_TEMPLATE_INSTANTIATION, but will be
2833 a DECL_FRIEND_PSUEDO_TEMPLATE_INSTANTIATION. */
2834 #define DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION(DECL) \
2835 (DECL_TEMPLATE_INFO (DECL) && !DECL_USE_TEMPLATE (DECL))
2837 /* Nonzero iff we are currently processing a declaration for an
2838 entity with its own template parameter list, and which is not a
2839 full specialization. */
2840 #define PROCESSING_REAL_TEMPLATE_DECL_P() \
2841 (processing_template_decl > template_class_depth (current_scope ()))
2843 /* Nonzero if this VAR_DECL or FUNCTION_DECL has already been
2844 instantiated, i.e. its definition has been generated from the
2845 pattern given in the template. */
2846 #define DECL_TEMPLATE_INSTANTIATED(NODE) \
2847 DECL_LANG_FLAG_1 (VAR_OR_FUNCTION_DECL_CHECK (NODE))
2849 /* We know what we're doing with this decl now. */
2850 #define DECL_INTERFACE_KNOWN(NODE) DECL_LANG_FLAG_5 (NODE)
2852 /* DECL_EXTERNAL must be set on a decl until the decl is actually emitted,
2853 so that assemble_external will work properly. So we have this flag to
2854 tell us whether the decl is really not external. */
2855 #define DECL_NOT_REALLY_EXTERN(NODE) \
2856 (DECL_LANG_SPECIFIC (NODE)->decl_flags.not_really_extern)
2858 #define DECL_REALLY_EXTERN(NODE) \
2859 (DECL_EXTERNAL (NODE) && ! DECL_NOT_REALLY_EXTERN (NODE))
2861 /* A thunk is a stub function.
2863 A thunk is an alternate entry point for an ordinary FUNCTION_DECL.
2864 The address of the ordinary FUNCTION_DECL is given by the
2865 DECL_INITIAL, which is always an ADDR_EXPR whose operand is a
2866 FUNCTION_DECL. The job of the thunk is to either adjust the this
2867 pointer before transferring control to the FUNCTION_DECL, or call
2868 FUNCTION_DECL and then adjust the result value. Note, the result
2869 pointer adjusting thunk must perform a call to the thunked
2870 function, (or be implemented via passing some invisible parameter
2871 to the thunked function, which is modified to perform the
2872 adjustment just before returning).
2874 A thunk may perform either, or both, of the following operations:
2876 o Adjust the this or result pointer by a constant offset.
2877 o Adjust the this or result pointer by looking up a vcall or vbase offset
2880 A this pointer adjusting thunk converts from a base to a derived
2881 class, and hence adds the offsets. A result pointer adjusting thunk
2882 converts from a derived class to a base, and hence subtracts the
2883 offsets. If both operations are performed, then the constant
2884 adjustment is performed first for this pointer adjustment and last
2885 for the result pointer adjustment.
2887 The constant adjustment is given by THUNK_FIXED_OFFSET. If the
2888 vcall or vbase offset is required, THUNK_VIRTUAL_OFFSET is
2889 used. For this pointer adjusting thunks, it is the vcall offset
2890 into the vtable. For result pointer adjusting thunks it is the
2891 binfo of the virtual base to convert to. Use that binfo's vbase
2894 It is possible to have equivalent covariant thunks. These are
2895 distinct virtual covariant thunks whose vbase offsets happen to
2896 have the same value. THUNK_ALIAS is used to pick one as the
2897 canonical thunk, which will get all the this pointer adjusting
2898 thunks attached to it. */
2900 /* An integer indicating how many bytes should be subtracted from the
2901 this or result pointer when this function is called. */
2902 #define THUNK_FIXED_OFFSET(DECL) \
2903 (DECL_LANG_SPECIFIC (THUNK_FUNCTION_CHECK (DECL))->u.f.u5.fixed_offset)
2905 /* A tree indicating how to perform the virtual adjustment. For a this
2906 adjusting thunk it is the number of bytes to be added to the vtable
2907 to find the vcall offset. For a result adjusting thunk, it is the
2908 binfo of the relevant virtual base. If NULL, then there is no
2909 virtual adjust. (The vptr is always located at offset zero from
2910 the this or result pointer.) (If the covariant type is within the
2911 class hierarchy being laid out, the vbase index is not yet known
2912 at the point we need to create the thunks, hence the need to use
2915 #define THUNK_VIRTUAL_OFFSET(DECL) \
2916 (LANG_DECL_U2_CHECK (FUNCTION_DECL_CHECK (DECL), 0)->access)
2918 /* A thunk which is equivalent to another thunk. */
2919 #define THUNK_ALIAS(DECL) \
2920 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->decl_flags.u.template_info)
2922 /* For thunk NODE, this is the FUNCTION_DECL thunked to. It is
2923 possible for the target to be a thunk too. */
2924 #define THUNK_TARGET(NODE) \
2925 (DECL_LANG_SPECIFIC (NODE)->u.f.befriending_classes)
2927 /* These macros provide convenient access to the various _STMT nodes
2928 created when parsing template declarations. */
2929 #define TRY_STMTS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 0)
2930 #define TRY_HANDLERS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 1)
2932 #define EH_SPEC_STMTS(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 0)
2933 #define EH_SPEC_RAISES(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 1)
2935 #define USING_STMT_NAMESPACE(NODE) TREE_OPERAND (USING_STMT_CHECK (NODE), 0)
2937 /* Nonzero if this try block is a function try block. */
2938 #define FN_TRY_BLOCK_P(NODE) TREE_LANG_FLAG_3 (TRY_BLOCK_CHECK (NODE))
2939 #define HANDLER_PARMS(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 0)
2940 #define HANDLER_BODY(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 1)
2941 #define HANDLER_TYPE(NODE) TREE_TYPE (HANDLER_CHECK (NODE))
2943 /* CLEANUP_STMT accessors. The statement(s) covered, the cleanup to run
2944 and the VAR_DECL for which this cleanup exists. */
2945 #define CLEANUP_BODY(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 0)
2946 #define CLEANUP_EXPR(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 1)
2947 #define CLEANUP_DECL(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 2)
2949 /* IF_STMT accessors. These give access to the condition of the if
2950 statement, the then block of the if statement, and the else block
2951 of the if statement if it exists. */
2952 #define IF_COND(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 0)
2953 #define THEN_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 1)
2954 #define ELSE_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 2)
2956 /* WHILE_STMT accessors. These give access to the condition of the
2957 while statement and the body of the while statement, respectively. */
2958 #define WHILE_COND(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 0)
2959 #define WHILE_BODY(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 1)
2961 /* DO_STMT accessors. These give access to the condition of the do
2962 statement and the body of the do statement, respectively. */
2963 #define DO_COND(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 0)
2964 #define DO_BODY(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 1)
2966 /* FOR_STMT accessors. These give access to the init statement,
2967 condition, update expression, and body of the for statement,
2969 #define FOR_INIT_STMT(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 0)
2970 #define FOR_COND(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 1)
2971 #define FOR_EXPR(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 2)
2972 #define FOR_BODY(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 3)
2974 #define SWITCH_STMT_COND(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 0)
2975 #define SWITCH_STMT_BODY(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 1)
2976 #define SWITCH_STMT_TYPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 2)
2978 /* STMT_EXPR accessor. */
2979 #define STMT_EXPR_STMT(NODE) TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0)
2981 /* EXPR_STMT accessor. This gives the expression associated with an
2982 expression statement. */
2983 #define EXPR_STMT_EXPR(NODE) TREE_OPERAND (EXPR_STMT_CHECK (NODE), 0)
2985 /* An enumeration of the kind of tags that C++ accepts. */
2987 none_type = 0, /* Not a tag type. */
2988 record_type, /* "struct" types. */
2989 class_type, /* "class" types. */
2990 union_type, /* "union" types. */
2991 enum_type, /* "enum" types. */
2992 typename_type /* "typename" types. */
2995 /* The various kinds of lvalues we distinguish. */
2996 typedef enum cp_lvalue_kind {
2997 clk_none = 0, /* Things that are not an lvalue. */
2998 clk_ordinary = 1, /* An ordinary lvalue. */
2999 clk_class = 2, /* An rvalue of class-type. */
3000 clk_bitfield = 4, /* An lvalue for a bit-field. */
3001 clk_packed = 8 /* An lvalue for a packed field. */
3004 /* Various kinds of template specialization, instantiation, etc. */
3005 typedef enum tmpl_spec_kind {
3006 tsk_none, /* Not a template at all. */
3007 tsk_invalid_member_spec, /* An explicit member template
3008 specialization, but the enclosing
3009 classes have not all been explicitly
3011 tsk_invalid_expl_inst, /* An explicit instantiation containing
3012 template parameter lists. */
3013 tsk_excessive_parms, /* A template declaration with too many
3014 template parameter lists. */
3015 tsk_insufficient_parms, /* A template declaration with too few
3017 tsk_template, /* A template declaration. */
3018 tsk_expl_spec, /* An explicit specialization. */
3019 tsk_expl_inst /* An explicit instantiation. */
3022 /* The various kinds of access. BINFO_ACCESS depends on these being
3023 two bit quantities. The numerical values are important; they are
3024 used to initialize RTTI data structures, so changing them changes
3026 typedef enum access_kind {
3027 ak_none = 0, /* Inaccessible. */
3028 ak_public = 1, /* Accessible, as a `public' thing. */
3029 ak_protected = 2, /* Accessible, as a `protected' thing. */
3030 ak_private = 3 /* Accessible, as a `private' thing. */
3033 /* The various kinds of special functions. If you add to this list,
3034 you should update special_function_p as well. */
3035 typedef enum special_function_kind {
3036 sfk_none = 0, /* Not a special function. This enumeral
3037 must have value zero; see
3038 special_function_p. */
3039 sfk_constructor, /* A constructor. */
3040 sfk_copy_constructor, /* A copy constructor. */
3041 sfk_assignment_operator, /* An assignment operator. */
3042 sfk_destructor, /* A destructor. */
3043 sfk_complete_destructor, /* A destructor for complete objects. */
3044 sfk_base_destructor, /* A destructor for base subobjects. */
3045 sfk_deleting_destructor, /* A destructor for complete objects that
3046 deletes the object after it has been
3048 sfk_conversion /* A conversion operator. */
3049 } special_function_kind;
3051 /* The various kinds of linkage. From [basic.link],
3053 A name is said to have linkage when it might denote the same
3054 object, reference, function, type, template, namespace or value
3055 as a name introduced in another scope:
3057 -- When a name has external linkage, the entity it denotes can
3058 be referred to from scopes of other translation units or from
3059 other scopes of the same translation unit.
3061 -- When a name has internal linkage, the entity it denotes can
3062 be referred to by names from other scopes in the same
3065 -- When a name has no linkage, the entity it denotes cannot be
3066 referred to by names from other scopes. */
3068 typedef enum linkage_kind {
3069 lk_none, /* No linkage. */
3070 lk_internal, /* Internal linkage. */
3071 lk_external /* External linkage. */
3074 /* Bitmask flags to control type substitution. */
3075 typedef enum tsubst_flags_t {
3076 tf_none = 0, /* nothing special */
3077 tf_error = 1 << 0, /* give error messages */
3078 tf_warning = 1 << 1, /* give warnings too */
3079 tf_ignore_bad_quals = 1 << 2, /* ignore bad cvr qualifiers */
3080 tf_keep_type_decl = 1 << 3, /* retain typedef type decls
3081 (make_typename_type use) */
3082 tf_ptrmem_ok = 1 << 4, /* pointers to member ok (internal
3083 instantiate_type use) */
3084 tf_user = 1 << 5, /* found template must be a user template
3085 (lookup_template_class use) */
3086 tf_conv = 1 << 6 /* We are determining what kind of
3087 conversion might be permissible,
3088 not actually performing the
3092 /* The kind of checking we can do looking in a class hierarchy. */
3093 typedef enum base_access {
3094 ba_any = 0, /* Do not check access, allow an ambiguous base,
3095 prefer a non-virtual base */
3096 ba_unique = 1 << 0, /* Must be a unique base. */
3097 ba_check_bit = 1 << 1, /* Check access. */
3098 ba_check = ba_unique | ba_check_bit,
3099 ba_ignore_scope = 1 << 2, /* Ignore access allowed by local scope. */
3100 ba_quiet = 1 << 3 /* Do not issue error messages. */
3103 /* The various kinds of access check during parsing. */
3104 typedef enum deferring_kind {
3105 dk_no_deferred = 0, /* Check access immediately */
3106 dk_deferred = 1, /* Deferred check */
3107 dk_no_check = 2 /* No access check */
3110 /* The kind of base we can find, looking in a class hierarchy.
3111 Values <0 indicate we failed. */
3112 typedef enum base_kind {
3113 bk_inaccessible = -3, /* The base is inaccessible */
3114 bk_ambig = -2, /* The base is ambiguous */
3115 bk_not_base = -1, /* It is not a base */
3116 bk_same_type = 0, /* It is the same type */
3117 bk_proper_base = 1, /* It is a proper base */
3118 bk_via_virtual = 2 /* It is a proper base, but via a virtual
3119 path. This might not be the canonical
3124 /* A node that is a list (length 1) of error_mark_nodes. */
3125 extern GTY(()) tree error_mark_list;
3127 /* Node for "pointer to (virtual) function".
3128 This may be distinct from ptr_type_node so gdb can distinguish them. */
3129 #define vfunc_ptr_type_node vtable_entry_type
3132 /* For building calls to `delete'. */
3133 extern GTY(()) tree integer_two_node;
3134 extern GTY(()) tree integer_three_node;
3136 /* The number of function bodies which we are currently processing.
3137 (Zero if we are at namespace scope, one inside the body of a
3138 function, two inside the body of a function in a local class, etc.) */
3139 extern int function_depth;
3143 /* These values are used for the `STRICT' parameter to type_unification and
3144 fn_type_unification. Their meanings are described with the
3145 documentation for fn_type_unification. */
3147 typedef enum unification_kind_t {
3151 } unification_kind_t;
3153 /* Macros for operating on a template instantiation level node. */
3155 #define TINST_DECL(NODE) \
3156 (((tinst_level_t) TINST_LEVEL_CHECK (NODE))->decl)
3157 #define TINST_LOCATION(NODE) \
3158 (((tinst_level_t) TINST_LEVEL_CHECK (NODE))->locus)
3159 #define TINST_IN_SYSTEM_HEADER_P(NODE) \
3160 (((tinst_level_t) TINST_LEVEL_CHECK (NODE))->in_system_header_p)
3164 extern int current_class_depth;
3166 /* An array of all local classes present in this translation unit, in
3167 declaration order. */
3168 extern GTY(()) VEC(tree,gc) *local_classes;
3170 /* Here's where we control how name mangling takes place. */
3172 /* Cannot use '$' up front, because this confuses gdb
3173 (names beginning with '$' are gdb-local identifiers).
3175 Note that all forms in which the '$' is significant are long enough
3176 for direct indexing (meaning that if we know there is a '$'
3177 at a particular location, we can index into the string at
3178 any other location that provides distinguishing characters). */
3180 /* Define NO_DOLLAR_IN_LABEL in your favorite tm file if your assembler
3181 doesn't allow '$' in symbol names. */
3182 #ifndef NO_DOLLAR_IN_LABEL
3186 #define AUTO_TEMP_NAME "_$tmp_"
3187 #define VFIELD_BASE "$vf"
3188 #define VFIELD_NAME "_vptr$"
3189 #define VFIELD_NAME_FORMAT "_vptr$%s"
3190 #define ANON_AGGRNAME_FORMAT "$_%d"
3192 #else /* NO_DOLLAR_IN_LABEL */
3194 #ifndef NO_DOT_IN_LABEL
3198 #define AUTO_TEMP_NAME "_.tmp_"
3199 #define VFIELD_BASE ".vf"
3200 #define VFIELD_NAME "_vptr."
3201 #define VFIELD_NAME_FORMAT "_vptr.%s"
3203 #define ANON_AGGRNAME_FORMAT "._%d"
3205 #else /* NO_DOT_IN_LABEL */
3207 #define IN_CHARGE_NAME "__in_chrg"
3208 #define AUTO_TEMP_NAME "__tmp_"
3209 #define TEMP_NAME_P(ID_NODE) \
3210 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, \
3211 sizeof (AUTO_TEMP_NAME) - 1))
3212 #define VTABLE_NAME "__vt_"
3213 #define VTABLE_NAME_P(ID_NODE) \
3214 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VTABLE_NAME, \
3215 sizeof (VTABLE_NAME) - 1))
3216 #define VFIELD_BASE "__vfb"
3217 #define VFIELD_NAME "__vptr_"
3218 #define VFIELD_NAME_P(ID_NODE) \
3219 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, \
3220 sizeof (VFIELD_NAME) - 1))
3221 #define VFIELD_NAME_FORMAT "__vptr_%s"
3223 #define ANON_AGGRNAME_PREFIX "__anon_"
3224 #define ANON_AGGRNAME_P(ID_NODE) \
3225 (!strncmp (IDENTIFIER_POINTER (ID_NODE), ANON_AGGRNAME_PREFIX, \
3226 sizeof (ANON_AGGRNAME_PREFIX) - 1))
3227 #define ANON_AGGRNAME_FORMAT "__anon_%d"
3229 #endif /* NO_DOT_IN_LABEL */
3230 #endif /* NO_DOLLAR_IN_LABEL */
3232 #define THIS_NAME "this"
3234 #define IN_CHARGE_NAME "__in_chrg"
3236 #define VTBL_PTR_TYPE "__vtbl_ptr_type"
3237 #define VTABLE_DELTA_NAME "__delta"
3238 #define VTABLE_PFN_NAME "__pfn"
3240 #if !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL)
3242 #define VTABLE_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == 'v' \
3243 && IDENTIFIER_POINTER (ID_NODE)[2] == 't' \
3244 && IDENTIFIER_POINTER (ID_NODE)[3] == JOINER)
3246 #define TEMP_NAME_P(ID_NODE) \
3247 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, sizeof (AUTO_TEMP_NAME)-1))
3248 #define VFIELD_NAME_P(ID_NODE) \
3249 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, sizeof(VFIELD_NAME)-1))
3251 /* For anonymous aggregate types, we need some sort of name to
3252 hold on to. In practice, this should not appear, but it should
3253 not be harmful if it does. */
3254 #define ANON_AGGRNAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[0] == JOINER \
3255 && IDENTIFIER_POINTER (ID_NODE)[1] == '_')
3256 #endif /* !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) */
3258 /* Returns nonzero iff NODE is a declaration for the global function
3260 #define DECL_MAIN_P(NODE) \
3261 (DECL_EXTERN_C_FUNCTION_P (NODE) \
3262 && DECL_NAME (NODE) != NULL_TREE \
3263 && MAIN_NAME_P (DECL_NAME (NODE)))
3266 /* Nonzero if we're done parsing and into end-of-file activities. */
3270 /* A list of namespace-scope objects which have constructors or
3271 destructors which reside in the global scope. The decl is stored
3272 in the TREE_VALUE slot and the initializer is stored in the
3273 TREE_PURPOSE slot. */
3274 extern GTY(()) tree static_aggregates;
3276 /* Functions called along with real static constructors and destructors. */
3278 extern GTY(()) tree static_ctors;
3279 extern GTY(()) tree static_dtors;
3281 enum overload_flags { NO_SPECIAL = 0, DTOR_FLAG, OP_FLAG, TYPENAME_FLAG };
3283 /* These are uses as bits in flags passed to build_new_method_call
3284 to control its error reporting behavior.
3286 LOOKUP_PROTECT means flag access violations.
3287 LOOKUP_COMPLAIN mean complain if no suitable member function
3288 matching the arguments is found.
3289 LOOKUP_NORMAL is just a combination of these two.
3290 LOOKUP_NONVIRTUAL means make a direct call to the member function found
3291 LOOKUP_ONLYCONVERTING means that non-conversion constructors are not tried.
3292 DIRECT_BIND means that if a temporary is created, it should be created so
3293 that it lives as long as the current variable bindings; otherwise it
3294 only lives until the end of the complete-expression. It also forces
3295 direct-initialization in cases where other parts of the compiler have
3296 already generated a temporary, such as reference initialization and the
3298 LOOKUP_NO_CONVERSION means that user-defined conversions are not
3299 permitted. Built-in conversions are permitted.
3300 LOOKUP_DESTRUCTOR means explicit call to destructor.
3301 LOOKUP_NO_TEMP_BIND means temporaries will not be bound to references.
3303 These are used in global lookup to support elaborated types and
3306 LOOKUP_PREFER_TYPES means not to accept objects, and possibly namespaces.
3307 LOOKUP_PREFER_NAMESPACES means not to accept objects, and possibly types.
3308 LOOKUP_PREFER_BOTH means class-or-namespace-name. */
3310 #define LOOKUP_PROTECT (1 << 0)
3311 #define LOOKUP_COMPLAIN (1 << 1)
3312 #define LOOKUP_NORMAL (LOOKUP_PROTECT | LOOKUP_COMPLAIN)
3313 #define LOOKUP_NONVIRTUAL (1 << 2)
3314 #define LOOKUP_ONLYCONVERTING (1 << 3)
3315 #define DIRECT_BIND (1 << 4)
3316 #define LOOKUP_NO_CONVERSION (1 << 5)
3317 #define LOOKUP_DESTRUCTOR (1 << 6)
3318 #define LOOKUP_NO_TEMP_BIND (1 << 7)
3319 #define LOOKUP_PREFER_TYPES (1 << 8)
3320 #define LOOKUP_PREFER_NAMESPACES (1 << 9)
3321 #define LOOKUP_PREFER_BOTH (LOOKUP_PREFER_TYPES | LOOKUP_PREFER_NAMESPACES)
3322 #define LOOKUP_CONSTRUCTOR_CALLABLE (1 << 10)
3324 #define LOOKUP_NAMESPACES_ONLY(F) \
3325 (((F) & LOOKUP_PREFER_NAMESPACES) && !((F) & LOOKUP_PREFER_TYPES))
3326 #define LOOKUP_TYPES_ONLY(F) \
3327 (!((F) & LOOKUP_PREFER_NAMESPACES) && ((F) & LOOKUP_PREFER_TYPES))
3328 #define LOOKUP_QUALIFIERS_ONLY(F) ((F) & LOOKUP_PREFER_BOTH)
3331 /* These flags are used by the conversion code.
3332 CONV_IMPLICIT : Perform implicit conversions (standard and user-defined).
3333 CONV_STATIC : Perform the explicit conversions for static_cast.
3334 CONV_CONST : Perform the explicit conversions for const_cast.
3335 CONV_REINTERPRET: Perform the explicit conversions for reinterpret_cast.
3336 CONV_PRIVATE : Perform upcasts to private bases.
3337 CONV_FORCE_TEMP : Require a new temporary when converting to the same
3340 #define CONV_IMPLICIT 1
3341 #define CONV_STATIC 2
3342 #define CONV_CONST 4
3343 #define CONV_REINTERPRET 8
3344 #define CONV_PRIVATE 16
3345 /* #define CONV_NONCONVERTING 32 */
3346 #define CONV_FORCE_TEMP 64
3347 #define CONV_OLD_CONVERT (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
3349 #define CONV_C_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
3350 | CONV_REINTERPRET | CONV_PRIVATE | CONV_FORCE_TEMP)
3352 /* Used by build_expr_type_conversion to indicate which types are
3353 acceptable as arguments to the expression under consideration. */
3355 #define WANT_INT 1 /* integer types, including bool */
3356 #define WANT_FLOAT 2 /* floating point types */
3357 #define WANT_ENUM 4 /* enumerated types */
3358 #define WANT_POINTER 8 /* pointer types */
3359 #define WANT_NULL 16 /* null pointer constant */
3360 #define WANT_ARITH (WANT_INT | WANT_FLOAT)
3362 /* Used with comptypes, and related functions, to guide type
3365 #define COMPARE_STRICT 0 /* Just check if the types are the
3367 #define COMPARE_BASE 1 /* Check to see if the second type is
3368 derived from the first. */
3369 #define COMPARE_DERIVED 2 /* Like COMPARE_BASE, but in
3371 #define COMPARE_REDECLARATION 4 /* The comparison is being done when
3372 another declaration of an existing
3375 /* Used with push_overloaded_decl. */
3376 #define PUSH_GLOBAL 0 /* Push the DECL into namespace scope,
3377 regardless of the current scope. */
3378 #define PUSH_LOCAL 1 /* Push the DECL into the current
3380 #define PUSH_USING 2 /* We are pushing this DECL as the
3381 result of a using declaration. */
3383 /* Used with start function. */
3384 #define SF_DEFAULT 0 /* No flags. */
3385 #define SF_PRE_PARSED 1 /* The function declaration has
3386 already been parsed. */
3387 #define SF_INCLASS_INLINE 2 /* The function is an inline, defined
3388 in the class body. */
3390 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, or if TYPE2
3391 is derived from TYPE1, or if TYPE2 is a pointer (reference) to a
3392 class derived from the type pointed to (referred to) by TYPE1. */
3393 #define same_or_base_type_p(TYPE1, TYPE2) \
3394 comptypes ((TYPE1), (TYPE2), COMPARE_BASE)
3396 /* These macros are used to access a TEMPLATE_PARM_INDEX. */
3397 #define TEMPLATE_PARM_INDEX_CAST(NODE) \
3398 ((template_parm_index*)TEMPLATE_PARM_INDEX_CHECK (NODE))
3399 #define TEMPLATE_PARM_IDX(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->index)
3400 #define TEMPLATE_PARM_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->level)
3401 #define TEMPLATE_PARM_DESCENDANTS(NODE) (TREE_CHAIN (NODE))
3402 #define TEMPLATE_PARM_ORIG_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->orig_level)
3403 #define TEMPLATE_PARM_DECL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->decl)
3405 /* These macros are for accessing the fields of TEMPLATE_TYPE_PARM,
3406 TEMPLATE_TEMPLATE_PARM and BOUND_TEMPLATE_TEMPLATE_PARM nodes. */
3407 #define TEMPLATE_TYPE_PARM_INDEX(NODE) \
3408 (TREE_CHECK3 ((NODE), TEMPLATE_TYPE_PARM, TEMPLATE_TEMPLATE_PARM, \
3409 BOUND_TEMPLATE_TEMPLATE_PARM))->type.values
3410 #define TEMPLATE_TYPE_IDX(NODE) \
3411 (TEMPLATE_PARM_IDX (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3412 #define TEMPLATE_TYPE_LEVEL(NODE) \
3413 (TEMPLATE_PARM_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3414 #define TEMPLATE_TYPE_ORIG_LEVEL(NODE) \
3415 (TEMPLATE_PARM_ORIG_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3416 #define TEMPLATE_TYPE_DECL(NODE) \
3417 (TEMPLATE_PARM_DECL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3419 /* These constants can used as bit flags in the process of tree formatting.
3421 TFF_PLAIN_IDENTIFIER: unqualified part of a name.
3422 TFF_SCOPE: include the class and namespace scope of the name.
3423 TFF_CHASE_TYPEDEF: print the original type-id instead of the typedef-name.
3424 TFF_DECL_SPECIFIERS: print decl-specifiers.
3425 TFF_CLASS_KEY_OR_ENUM: precede a class-type name (resp. enum name) with
3426 a class-key (resp. `enum').
3427 TFF_RETURN_TYPE: include function return type.
3428 TFF_FUNCTION_DEFAULT_ARGUMENTS: include function default parameter values.
3429 TFF_EXCEPTION_SPECIFICATION: show function exception specification.
3430 TFF_TEMPLATE_HEADER: show the template<...> header in a
3431 template-declaration.
3432 TFF_TEMPLATE_NAME: show only template-name.
3433 TFF_EXPR_IN_PARENS: parenthesize expressions.
3434 TFF_NO_FUNCTION_ARGUMENTS: don't show function arguments. */
3436 #define TFF_PLAIN_IDENTIFIER (0)
3437 #define TFF_SCOPE (1)
3438 #define TFF_CHASE_TYPEDEF (1 << 1)
3439 #define TFF_DECL_SPECIFIERS (1 << 2)
3440 #define TFF_CLASS_KEY_OR_ENUM (1 << 3)
3441 #define TFF_RETURN_TYPE (1 << 4)
3442 #define TFF_FUNCTION_DEFAULT_ARGUMENTS (1 << 5)
3443 #define TFF_EXCEPTION_SPECIFICATION (1 << 6)
3444 #define TFF_TEMPLATE_HEADER (1 << 7)
3445 #define TFF_TEMPLATE_NAME (1 << 8)
3446 #define TFF_EXPR_IN_PARENS (1 << 9)
3447 #define TFF_NO_FUNCTION_ARGUMENTS (1 << 10)
3449 /* Returns the TEMPLATE_DECL associated to a TEMPLATE_TEMPLATE_PARM
3451 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_DECL(NODE) \
3452 ((TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM) \
3453 ? TYPE_TI_TEMPLATE (NODE) \
3458 extern void init_reswords (void);
3460 /* Indexed by TREE_CODE, these tables give C-looking names to
3461 operators represented by TREE_CODES. For example,
3462 opname_tab[(int) MINUS_EXPR] == "-". */
3463 extern const char **opname_tab, **assignop_tab;
3465 typedef struct operator_name_info_t GTY(())
3467 /* The IDENTIFIER_NODE for the operator. */
3469 /* The name of the operator. */
3471 /* The mangled name of the operator. */
3472 const char *mangled_name;
3473 /* The arity of the operator. */
3475 } operator_name_info_t;
3477 /* A mapping from tree codes to operator name information. */
3478 extern GTY(()) operator_name_info_t operator_name_info
3479 [(int) LAST_CPLUS_TREE_CODE];
3480 /* Similar, but for assignment operators. */
3481 extern GTY(()) operator_name_info_t assignment_operator_name_info
3482 [(int) LAST_CPLUS_TREE_CODE];
3484 /* A type-qualifier, or bitmask therefore, using the TYPE_QUAL
3487 typedef int cp_cv_quals;
3489 /* A storage class. */
3491 typedef enum cp_storage_class {
3492 /* sc_none must be zero so that zeroing a cp_decl_specifier_seq
3493 sets the storage_class field to sc_none. */
3502 /* An individual decl-specifier. */
3504 typedef enum cp_decl_spec {
3506 ds_signed = ds_first,
3523 /* A decl-specifier-seq. */
3525 typedef struct cp_decl_specifier_seq {
3526 /* The number of times each of the keywords has been seen. */
3527 unsigned specs[(int) ds_last];
3528 /* The primary type, if any, given by the decl-specifier-seq.
3529 Modifiers, like "short", "const", and "unsigned" are not
3530 reflected here. This field will be a TYPE, unless a typedef-name
3531 was used, in which case it will be a TYPE_DECL. */
3533 /* The attributes, if any, provided with the specifier sequence. */
3535 /* If non-NULL, a built-in type that the user attempted to redefine
3536 to some other type. */
3537 tree redefined_builtin_type;
3538 /* The storage class specified -- or sc_none if no storage class was
3539 explicitly specified. */
3540 cp_storage_class storage_class;
3541 /* True iff TYPE_SPEC indicates a user-defined type. */
3542 BOOL_BITFIELD user_defined_type_p : 1;
3543 /* True iff multiple types were (erroneously) specified for this
3544 decl-specifier-seq. */
3545 BOOL_BITFIELD multiple_types_p : 1;
3546 /* True iff multiple storage classes were (erroneously) specified
3547 for this decl-specifier-seq. */
3548 BOOL_BITFIELD multiple_storage_classes_p : 1;
3549 /* True iff at least one decl-specifier was found. */
3550 BOOL_BITFIELD any_specifiers_p : 1;
3551 /* True iff "int" was explicitly provided. */
3552 BOOL_BITFIELD explicit_int_p : 1;
3553 /* True iff "char" was explicitly provided. */
3554 BOOL_BITFIELD explicit_char_p : 1;
3555 } cp_decl_specifier_seq;
3557 /* The various kinds of declarators. */
3559 typedef enum cp_declarator_kind {
3567 } cp_declarator_kind;
3571 typedef struct cp_declarator cp_declarator;
3573 typedef struct cp_parameter_declarator cp_parameter_declarator;
3575 /* A parameter, before it has been semantically analyzed. */
3576 struct cp_parameter_declarator {
3577 /* The next parameter, or NULL_TREE if none. */
3578 cp_parameter_declarator *next;
3579 /* The decl-specifiers-seq for the parameter. */
3580 cp_decl_specifier_seq decl_specifiers;
3581 /* The declarator for the parameter. */
3582 cp_declarator *declarator;
3583 /* The default-argument expression, or NULL_TREE, if none. */
3584 tree default_argument;
3585 /* True iff this is the first parameter in the list and the
3586 parameter sequence ends with an ellipsis. */
3591 struct cp_declarator {
3592 /* The kind of declarator. */
3593 cp_declarator_kind kind;
3594 /* Attributes that apply to this declarator. */
3596 /* For all but cdk_id and cdk_error, the contained declarator. For
3597 cdk_id and cdk_error, guaranteed to be NULL. */
3598 cp_declarator *declarator;
3599 location_t id_loc; /* Currently only set for cdk_id. */
3601 /* For identifiers. */
3603 /* If non-NULL, the qualifying scope (a NAMESPACE_DECL or
3604 *_TYPE) for this identifier. */
3605 tree qualifying_scope;
3606 /* The unqualified name of the entity -- an IDENTIFIER_NODE,
3607 BIT_NOT_EXPR, or TEMPLATE_ID_EXPR. */
3608 tree unqualified_name;
3609 /* If this is the name of a function, what kind of special
3610 function (if any). */
3611 special_function_kind sfk;
3613 /* For functions. */
3615 /* The parameters to the function. */
3616 cp_parameter_declarator *parameters;
3617 /* The cv-qualifiers for the function. */
3618 cp_cv_quals qualifiers;
3619 /* The exception-specification for the function. */
3620 tree exception_specification;
3624 /* The bounds to the array. */
3627 /* For cdk_pointer, cdk_reference, and cdk_ptrmem. */
3629 /* The cv-qualifiers for the pointer. */
3630 cp_cv_quals qualifiers;
3631 /* For cdk_ptrmem, the class type containing the member. */
3637 /* An erroneous declarator. */
3638 extern cp_declarator *cp_error_declarator;
3640 /* A parameter list indicating for a function with no parameters,
3641 e.g "int f(void)". */
3642 extern cp_parameter_declarator *no_parameters;
3645 extern bool check_dtor_name (tree, tree);
3647 extern tree build_vfield_ref (tree, tree);
3648 extern tree build_conditional_expr (tree, tree, tree);
3649 extern tree build_addr_func (tree);
3650 extern tree build_call (tree, tree);
3651 extern bool null_ptr_cst_p (tree);
3652 extern bool sufficient_parms_p (tree);
3653 extern tree type_decays_to (tree);
3654 extern tree build_user_type_conversion (tree, tree, int);
3655 extern tree build_new_function_call (tree, tree, bool);
3656 extern tree build_operator_new_call (tree, tree, tree *, tree *);
3657 extern tree build_new_method_call (tree, tree, tree, tree, int);
3658 extern tree build_special_member_call (tree, tree, tree, tree, int);
3659 extern tree build_new_op (enum tree_code, int, tree, tree, tree, bool *);
3660 extern tree build_op_delete_call (enum tree_code, tree, tree, bool, tree);
3661 extern bool can_convert (tree, tree);
3662 extern bool can_convert_arg (tree, tree, tree, int);
3663 extern bool can_convert_arg_bad (tree, tree, tree);
3664 extern bool enforce_access (tree, tree);
3665 extern tree convert_default_arg (tree, tree, tree, int);
3666 extern tree convert_arg_to_ellipsis (tree);
3667 extern tree build_x_va_arg (tree, tree);
3668 extern tree cxx_type_promotes_to (tree);
3669 extern tree type_passed_as (tree);
3670 extern tree convert_for_arg_passing (tree, tree);
3671 extern bool is_properly_derived_from (tree, tree);
3672 extern tree initialize_reference (tree, tree, tree, tree *);
3673 extern tree make_temporary_var_for_ref_to_temp (tree, tree);
3674 extern tree strip_top_quals (tree);
3675 extern tree perform_implicit_conversion (tree, tree);
3676 extern tree perform_direct_initialization_if_possible (tree, tree, bool);
3677 extern tree in_charge_arg_for_name (tree);
3678 extern tree build_cxx_call (tree, tree);
3679 #ifdef ENABLE_CHECKING
3680 extern void validate_conversion_obstack (void);
3681 #endif /* ENABLE_CHECKING */
3684 extern tree build_base_path (enum tree_code, tree,
3686 extern tree convert_to_base (tree, tree, bool, bool);
3687 extern tree convert_to_base_statically (tree, tree);
3688 extern tree build_vtbl_ref (tree, tree);
3689 extern tree build_vfn_ref (tree, tree);
3690 extern tree get_vtable_decl (tree, int);
3691 extern void resort_type_method_vec (void *, void *,
3692 gt_pointer_operator, void *);
3693 extern void add_method (tree, tree, tree);
3694 extern int currently_open_class (tree);
3695 extern tree currently_open_derived_class (tree);
3696 extern tree finish_struct (tree, tree);
3697 extern void finish_struct_1 (tree);
3698 extern int resolves_to_fixed_type_p (tree, int *);
3699 extern void init_class_processing (void);
3700 extern int is_empty_class (tree);
3701 extern void pushclass (tree);
3702 extern void popclass (void);
3703 extern void push_nested_class (tree);
3704 extern void pop_nested_class (void);
3705 extern int current_lang_depth (void);
3706 extern void push_lang_context (tree);
3707 extern void pop_lang_context (void);
3708 extern tree instantiate_type (tree, tree, tsubst_flags_t);
3709 extern void print_class_statistics (void);
3710 extern void cxx_print_statistics (void);
3711 extern void cxx_print_xnode (FILE *, tree, int);
3712 extern void cxx_print_decl (FILE *, tree, int);
3713 extern void cxx_print_type (FILE *, tree, int);
3714 extern void cxx_print_identifier (FILE *, tree, int);
3715 extern void cxx_print_error_function (struct diagnostic_context *,
3717 extern void build_self_reference (void);
3718 extern int same_signature_p (tree, tree);
3719 extern void warn_hidden (tree);
3720 extern void maybe_add_class_template_decl_list (tree, tree, int);
3721 extern void unreverse_member_declarations (tree);
3722 extern void invalidate_class_lookup_cache (void);
3723 extern void maybe_note_name_used_in_class (tree, tree);
3724 extern void note_name_declared_in_class (tree, tree);
3725 extern tree get_vtbl_decl_for_binfo (tree);
3726 extern tree get_vtt_name (tree);
3727 extern tree get_primary_binfo (tree);
3728 extern void debug_class (tree);
3729 extern void debug_thunks (tree);
3730 extern tree cp_fold_obj_type_ref (tree, tree);
3731 extern void set_linkage_according_to_type (tree, tree);
3732 extern void determine_key_method (tree);
3733 extern void check_for_override (tree, tree);
3736 extern tree convert_to_reference (tree, tree, int, int, tree);
3737 extern tree convert_from_reference (tree);
3738 extern tree force_rvalue (tree);
3739 extern tree ocp_convert (tree, tree, int, int);
3740 extern tree cp_convert (tree, tree);
3741 extern tree convert_to_void (tree, const char */*implicit context*/);
3742 extern tree convert_force (tree, tree, int);
3743 extern tree build_type_conversion (tree, tree);
3744 extern tree build_expr_type_conversion (int, tree, bool);
3745 extern tree type_promotes_to (tree);
3746 extern tree perform_qualification_conversions (tree, tree);
3747 extern void clone_function_decl (tree, int);
3748 extern void adjust_clone_args (tree);
3751 extern tree poplevel (int, int, int);
3752 extern void insert_block (tree);
3753 extern tree pushdecl (tree);
3754 extern tree pushdecl_maybe_friend (tree, bool);
3755 extern void cxx_init_decl_processing (void);
3756 enum cp_tree_node_structure_enum cp_tree_node_structure
3757 (union lang_tree_node *);
3758 extern bool cxx_mark_addressable (tree);
3759 extern void cxx_push_function_context (struct function *);
3760 extern void cxx_pop_function_context (struct function *);
3761 extern void maybe_push_cleanup_level (tree);
3762 extern void finish_scope (void);
3763 extern void push_switch (tree);
3764 extern void pop_switch (void);
3765 extern tree pushtag (tree, tree, tag_scope);
3766 extern tree make_anon_name (void);
3767 extern int decls_match (tree, tree);
3768 extern tree duplicate_decls (tree, tree, bool);
3769 extern tree pushdecl_top_level (tree);
3770 extern tree pushdecl_top_level_maybe_friend (tree, bool);
3771 extern tree pushdecl_top_level_and_finish (tree, tree);
3772 extern tree push_using_decl (tree, tree);
3773 extern tree declare_local_label (tree);
3774 extern tree define_label (location_t, tree);
3775 extern void check_goto (tree);
3776 extern tree make_typename_type (tree, tree, enum tag_types, tsubst_flags_t);
3777 extern tree make_unbound_class_template (tree, tree, tree, tsubst_flags_t);
3778 extern tree check_for_out_of_scope_variable (tree);
3779 extern tree build_library_fn (tree, tree);
3780 extern tree build_library_fn_ptr (const char *, tree);
3781 extern tree build_cp_library_fn_ptr (const char *, tree);
3782 extern tree push_library_fn (tree, tree);
3783 extern tree push_void_library_fn (tree, tree);
3784 extern tree push_throw_library_fn (tree, tree);
3785 extern tree check_tag_decl (cp_decl_specifier_seq *);
3786 extern tree shadow_tag (cp_decl_specifier_seq *);
3787 extern tree groktypename (cp_decl_specifier_seq *, const cp_declarator *);
3788 extern tree start_decl (const cp_declarator *, cp_decl_specifier_seq *, int, tree, tree, tree *);
3789 extern void start_decl_1 (tree);
3790 extern void cp_finish_decl (tree, tree, tree, int);
3791 extern void finish_decl (tree, tree, tree);
3792 extern int cp_complete_array_type (tree *, tree, bool);
3793 extern tree build_ptrmemfunc_type (tree);
3794 extern tree build_ptrmem_type (tree, tree);
3795 /* the grokdeclarator prototype is in decl.h */
3796 extern int copy_fn_p (tree);
3797 extern tree get_scope_of_declarator (const cp_declarator *);
3798 extern void grok_special_member_properties (tree);
3799 extern int grok_ctor_properties (tree, tree);
3800 extern void grok_op_properties (tree, bool);
3801 extern tree xref_tag (enum tag_types, tree, tag_scope, bool);
3802 extern tree xref_tag_from_type (tree, tree, tag_scope);
3803 extern void xref_basetypes (tree, tree);
3804 extern tree start_enum (tree);
3805 extern void finish_enum (tree);
3806 extern void build_enumerator (tree, tree, tree);
3807 extern void start_preparsed_function (tree, tree, int);
3808 extern int start_function (cp_decl_specifier_seq *, const cp_declarator *, tree);
3809 extern tree begin_function_body (void);
3810 extern void finish_function_body (tree);
3811 extern tree finish_function (int);
3812 extern tree start_method (cp_decl_specifier_seq *, const cp_declarator *, tree);
3813 extern tree finish_method (tree);
3814 extern void maybe_register_incomplete_var (tree);
3815 extern void complete_vars (tree);
3816 extern void finish_stmt (void);
3817 extern void print_other_binding_stack (struct cp_binding_level *);
3818 extern void revert_static_member_fn (tree);
3819 extern void fixup_anonymous_aggr (tree);
3820 extern int check_static_variable_definition (tree, tree);
3821 extern tree compute_array_index_type (tree, tree);
3822 extern tree check_default_argument (tree, tree);
3823 typedef int (*walk_namespaces_fn) (tree, void *);
3824 extern int walk_namespaces (walk_namespaces_fn,
3826 extern int wrapup_globals_for_namespace (tree, void *);
3827 extern tree create_implicit_typedef (tree, tree);
3828 extern tree maybe_push_decl (tree);
3829 extern tree force_target_expr (tree, tree);
3830 extern tree build_target_expr_with_type (tree, tree);
3831 extern int local_variable_p (tree);
3832 extern int nonstatic_local_decl_p (tree);
3833 extern tree declare_global_var (tree, tree);
3834 extern tree register_dtor_fn (tree);
3835 extern tmpl_spec_kind current_tmpl_spec_kind (int);
3836 extern tree cp_fname_init (const char *, tree *);
3837 extern tree builtin_function (const char *name, tree type,
3839 enum built_in_class cl,
3840 const char *libname,
3842 extern tree check_elaborated_type_specifier (enum tag_types, tree, bool);
3843 extern void warn_extern_redeclared_static (tree, tree);
3844 extern const char *cxx_comdat_group (tree);
3845 extern bool cp_missing_noreturn_ok_p (tree);
3846 extern void initialize_artificial_var (tree, tree);
3847 extern tree check_var_type (tree, tree);
3849 extern bool have_extern_spec;
3852 extern bool check_java_method (tree);
3853 extern cp_cv_quals grok_method_quals (tree, tree, cp_cv_quals);
3854 extern void maybe_retrofit_in_chrg (tree);
3855 extern void maybe_make_one_only (tree);
3856 extern void grokclassfn (tree, tree,
3857 enum overload_flags,
3859 extern tree grok_array_decl (tree, tree);
3860 extern tree delete_sanity (tree, tree, bool, int);
3861 extern tree check_classfn (tree, tree, tree);
3862 extern void check_member_template (tree);
3863 extern tree grokfield (const cp_declarator *, cp_decl_specifier_seq *,
3865 extern tree grokbitfield (const cp_declarator *, cp_decl_specifier_seq *,
3867 extern void cplus_decl_attributes (tree *, tree, int);
3868 extern void finish_anon_union (tree);
3869 extern void cp_finish_file (void);
3870 extern tree coerce_new_type (tree);
3871 extern tree coerce_delete_type (tree);
3872 extern void comdat_linkage (tree);
3873 extern void determine_visibility (tree);
3874 extern void import_export_decl (tree);
3875 extern tree build_cleanup (tree);
3876 extern tree build_offset_ref_call_from_tree (tree, tree);
3877 extern void check_default_args (tree);
3878 extern void mark_used (tree);
3879 extern void finish_static_data_member_decl (tree, tree, tree, int);
3880 extern tree cp_build_parm_decl (tree, tree);
3881 extern tree get_guard (tree);
3882 extern tree get_guard_cond (tree);
3883 extern tree set_guard (tree);
3884 extern tree cxx_callgraph_analyze_expr (tree *, int *, tree);
3885 extern void mark_needed (tree);
3886 extern bool decl_needed_p (tree);
3887 extern void note_vague_linkage_fn (tree);
3890 extern void init_error (void);
3891 extern const char *type_as_string (tree, int);
3892 extern const char *decl_as_string (tree, int);
3893 extern const char *expr_as_string (tree, int);
3894 extern const char *lang_decl_name (tree, int);
3895 extern const char *language_to_string (enum languages);
3896 extern const char *class_key_or_enum_as_string (tree);
3897 extern void print_instantiation_context (void);
3900 extern void init_exception_processing (void);
3901 extern tree expand_start_catch_block (tree);
3902 extern void expand_end_catch_block (void);
3903 extern tree build_exc_ptr (void);
3904 extern tree build_throw (tree);
3905 extern int nothrow_libfn_p (tree);
3906 extern void check_handlers (tree);
3907 extern void choose_personality_routine (enum languages);
3908 extern tree eh_type_info (tree);
3911 extern rtx cxx_expand_expr (tree, rtx,
3914 extern tree cplus_expand_constant (tree);
3917 extern int is_friend (tree, tree);
3918 extern void make_friend_class (tree, tree, bool);
3919 extern void add_friend (tree, tree, bool);
3920 extern tree do_friend (tree, tree, tree, tree, enum overload_flags, cp_cv_quals, int);
3923 extern tree expand_member_init (tree);
3924 extern void emit_mem_initializers (tree);
3925 extern tree build_aggr_init (tree, tree, int);
3926 extern tree build_init (tree, tree, int);
3927 extern int is_aggr_type (tree, int);
3928 extern tree get_type_value (tree);
3929 extern tree build_zero_init (tree, tree, bool);
3930 extern tree build_offset_ref (tree, tree, bool);
3931 extern tree build_new (tree, tree, tree, tree, int);
3932 extern tree build_vec_init (tree, tree, tree, bool, int);
3933 extern tree build_x_delete (tree, int, tree);
3934 extern tree build_delete (tree, tree,
3935 special_function_kind,
3937 extern void push_base_cleanups (void);
3938 extern tree build_vec_delete (tree, tree,
3939 special_function_kind, int);
3940 extern tree create_temporary_var (tree);
3941 extern void initialize_vtbl_ptrs (tree);
3942 extern tree build_java_class_ref (tree);
3943 extern tree integral_constant_value (tree);
3946 extern void cxx_dup_lang_specific_decl (tree);
3947 extern void yyungetc (int, int);
3949 extern tree unqualified_name_lookup_error (tree);
3950 extern tree unqualified_fn_lookup_error (tree);
3951 extern tree build_lang_decl (enum tree_code, tree, tree);
3952 extern void retrofit_lang_decl (tree);
3953 extern tree copy_decl (tree);
3954 extern tree copy_type (tree);
3955 extern tree cxx_make_type (enum tree_code);
3956 extern tree make_aggr_type (enum tree_code);
3957 extern void yyerror (const char *);
3958 extern void yyhook (int);
3959 extern bool cxx_init (void);
3960 extern void cxx_finish (void);
3963 extern void init_method (void);
3964 extern tree make_thunk (tree, bool, tree, tree);
3965 extern void finish_thunk (tree);
3966 extern void use_thunk (tree, bool);
3967 extern void synthesize_method (tree);
3968 extern tree implicitly_declare_fn (special_function_kind,
3970 extern tree lazily_declare_fn (special_function_kind,
3972 extern tree skip_artificial_parms_for (tree, tree);
3973 extern tree make_alias_for (tree, tree);
3976 extern bool maybe_clone_body (tree);
3979 extern void check_template_shadow (tree);
3980 extern tree get_innermost_template_args (tree, int);
3981 extern void maybe_begin_member_template_processing (tree);
3982 extern void maybe_end_member_template_processing (void);
3983 extern tree finish_member_template_decl (tree);
3984 extern void begin_template_parm_list (void);
3985 extern void begin_specialization (void);
3986 extern void reset_specialization (void);
3987 extern void end_specialization (void);
3988 extern void begin_explicit_instantiation (void);
3989 extern void end_explicit_instantiation (void);
3990 extern tree check_explicit_specialization (tree, tree, int, int);
3991 extern tree process_template_parm (tree, tree, bool);
3992 extern tree end_template_parm_list (tree);
3993 extern void end_template_decl (void);
3994 extern tree current_template_args (void);
3995 extern tree push_template_decl (tree);
3996 extern tree push_template_decl_real (tree, bool);
3997 extern void redeclare_class_template (tree, tree);
3998 extern tree lookup_template_class (tree, tree, tree, tree,
3999 int, tsubst_flags_t);
4000 extern tree lookup_template_function (tree, tree);
4001 extern int uses_template_parms (tree);
4002 extern int uses_template_parms_level (tree, int);
4003 extern tree instantiate_class_template (tree);
4004 extern tree instantiate_template (tree, tree, tsubst_flags_t);
4005 extern int fn_type_unification (tree, tree, tree, tree,
4006 tree, unification_kind_t, int);
4007 extern void mark_decl_instantiated (tree, int);
4008 extern int more_specialized_fn (tree, tree, int);
4009 extern void mark_class_instantiated (tree, int);
4010 extern void do_decl_instantiation (tree, tree);
4011 extern void do_type_instantiation (tree, tree, tsubst_flags_t);
4012 extern tree instantiate_decl (tree, int, bool);
4013 extern int push_tinst_level (tree);
4014 extern void pop_tinst_level (void);
4015 extern int more_specialized_class (tree, tree, tree);
4016 extern int comp_template_parms (tree, tree);
4017 extern int template_class_depth (tree);
4018 extern int is_specialization_of (tree, tree);
4019 extern bool is_specialization_of_friend (tree, tree);
4020 extern int comp_template_args (tree, tree);
4021 extern void maybe_process_partial_specialization (tree);
4022 extern tree most_specialized_instantiation (tree);
4023 extern void print_candidates (tree);
4024 extern void instantiate_pending_templates (int);
4025 extern tree tsubst_default_argument (tree, tree, tree);
4026 extern tree tsubst_copy_and_build (tree, tree, tsubst_flags_t,
4028 extern tree most_general_template (tree);
4029 extern tree get_mostly_instantiated_function_type (tree);
4030 extern int problematic_instantiation_changed (void);
4031 extern void record_last_problematic_instantiation (void);
4032 extern tree current_instantiation (void);
4033 extern tree maybe_get_template_decl_from_type_decl (tree);
4034 extern int processing_template_parmlist;
4035 extern bool dependent_type_p (tree);
4036 extern bool any_dependent_template_arguments_p (tree);
4037 extern bool dependent_template_p (tree);
4038 extern bool dependent_template_id_p (tree, tree);
4039 extern bool type_dependent_expression_p (tree);
4040 extern bool any_type_dependent_arguments_p (tree);
4041 extern bool value_dependent_expression_p (tree);
4042 extern tree resolve_typename_type (tree, bool);
4043 extern tree template_for_substitution (tree);
4044 extern tree build_non_dependent_expr (tree);
4045 extern tree build_non_dependent_args (tree);
4046 extern bool reregister_specialization (tree, tree, tree);
4047 extern tree fold_non_dependent_expr (tree);
4048 extern tree fold_decl_constant_value (tree);
4051 extern void init_repo (void);
4052 extern int repo_emit_p (tree);
4053 extern bool repo_export_class_p (tree);
4054 extern void finish_repo (void);
4057 /* A vector of all tinfo decls that haven't been emitted yet. */
4058 extern GTY(()) VEC(tree,gc) *unemitted_tinfo_decls;
4060 extern void init_rtti_processing (void);
4061 extern tree build_typeid (tree);
4062 extern tree get_tinfo_decl (tree);
4063 extern tree get_typeid (tree);
4064 extern tree build_dynamic_cast (tree, tree);
4065 extern void emit_support_tinfos (void);
4066 extern bool emit_tinfo_decl (tree);
4069 extern bool accessible_base_p (tree, tree, bool);
4070 extern tree lookup_base (tree, tree, base_access,
4072 extern tree dcast_base_hint (tree, tree);
4073 extern int accessible_p (tree, tree, bool);
4074 extern tree lookup_field_1 (tree, tree, bool);
4075 extern tree lookup_field (tree, tree, int, bool);
4076 extern int lookup_fnfields_1 (tree, tree);
4077 extern int class_method_index_for_fn (tree, tree);
4078 extern tree lookup_fnfields (tree, tree, int);
4079 extern tree lookup_member (tree, tree, int, bool);
4080 extern int look_for_overrides (tree, tree);
4081 extern void get_pure_virtuals (tree);
4082 extern void maybe_suppress_debug_info (tree);
4083 extern void note_debug_info_needed (tree);
4084 extern void print_search_statistics (void);
4085 extern void reinit_search_statistics (void);
4086 extern tree current_scope (void);
4087 extern int at_function_scope_p (void);
4088 extern bool at_class_scope_p (void);
4089 extern bool at_namespace_scope_p (void);
4090 extern tree context_for_name_lookup (tree);
4091 extern tree lookup_conversions (tree);
4092 extern tree binfo_from_vbase (tree);
4093 extern tree binfo_for_vbase (tree, tree);
4094 extern tree look_for_overrides_here (tree, tree);
4095 #define dfs_skip_bases ((tree)1)
4096 extern tree dfs_walk_all (tree, tree (*) (tree, void *),
4097 tree (*) (tree, void *), void *);
4098 extern tree dfs_walk_once (tree, tree (*) (tree, void *),
4099 tree (*) (tree, void *), void *);
4100 extern tree binfo_via_virtual (tree, tree);
4101 extern tree build_baselink (tree, tree, tree, tree);
4102 extern tree adjust_result_of_qualified_name_lookup
4104 extern tree copied_binfo (tree, tree);
4105 extern tree original_binfo (tree, tree);
4106 extern int shared_member_p (tree);
4108 /* in semantics.c */
4109 extern void push_deferring_access_checks (deferring_kind);
4110 extern void resume_deferring_access_checks (void);
4111 extern void stop_deferring_access_checks (void);
4112 extern void pop_deferring_access_checks (void);
4113 extern tree get_deferred_access_checks (void);
4114 extern void pop_to_parent_deferring_access_checks (void);
4115 extern void perform_deferred_access_checks (void);
4116 extern void perform_or_defer_access_check (tree, tree);
4117 extern int stmts_are_full_exprs_p (void);
4118 extern void init_cp_semantics (void);
4119 extern tree do_poplevel (tree);
4120 extern void add_decl_expr (tree);
4121 extern tree finish_expr_stmt (tree);
4122 extern tree begin_if_stmt (void);
4123 extern void finish_if_stmt_cond (tree, tree);
4124 extern tree finish_then_clause (tree);
4125 extern void begin_else_clause (tree);
4126 extern void finish_else_clause (tree);
4127 extern void finish_if_stmt (tree);
4128 extern tree begin_while_stmt (void);
4129 extern void finish_while_stmt_cond (tree, tree);
4130 extern void finish_while_stmt (tree);
4131 extern tree begin_do_stmt (void);
4132 extern void finish_do_body (tree);
4133 extern void finish_do_stmt (tree, tree);
4134 extern tree finish_return_stmt (tree);
4135 extern tree begin_for_stmt (void);
4136 extern void finish_for_init_stmt (tree);
4137 extern void finish_for_cond (tree, tree);
4138 extern void finish_for_expr (tree, tree);
4139 extern void finish_for_stmt (tree);
4140 extern tree finish_break_stmt (void);
4141 extern tree finish_continue_stmt (void);
4142 extern tree begin_switch_stmt (void);
4143 extern void finish_switch_cond (tree, tree);
4144 extern void finish_switch_stmt (tree);
4145 extern tree finish_case_label (tree, tree);
4146 extern tree finish_goto_stmt (tree);
4147 extern tree begin_try_block (void);
4148 extern void finish_try_block (tree);
4149 extern tree begin_eh_spec_block (void);
4150 extern void finish_eh_spec_block (tree, tree);
4151 extern void finish_handler_sequence (tree);
4152 extern tree begin_function_try_block (void);
4153 extern void finish_function_try_block (tree);
4154 extern void finish_function_handler_sequence (tree);
4155 extern void finish_cleanup_try_block (tree);
4156 extern tree begin_handler (void);
4157 extern void finish_handler_parms (tree, tree);
4158 extern void finish_handler (tree);
4159 extern void finish_cleanup (tree, tree);
4166 extern tree begin_compound_stmt (unsigned int);
4168 extern void finish_compound_stmt (tree);
4169 extern tree finish_asm_stmt (int, tree, tree, tree, tree);
4170 extern tree finish_label_stmt (tree);
4171 extern void finish_label_decl (tree);
4172 extern tree finish_parenthesized_expr (tree);
4173 extern tree finish_non_static_data_member (tree, tree, tree);
4174 extern tree begin_stmt_expr (void);
4175 extern tree finish_stmt_expr_expr (tree, tree);
4176 extern tree finish_stmt_expr (tree, bool);
4177 extern tree perform_koenig_lookup (tree, tree);
4178 extern tree finish_call_expr (tree, tree, bool, bool);
4179 extern tree finish_increment_expr (tree, enum tree_code);
4180 extern tree finish_this_expr (void);
4181 extern tree finish_pseudo_destructor_expr (tree, tree, tree);
4182 extern tree finish_unary_op_expr (enum tree_code, tree);
4183 extern tree finish_compound_literal (tree, VEC(constructor_elt,gc) *);
4184 extern tree finish_fname (tree);
4185 extern void finish_translation_unit (void);
4186 extern tree finish_template_type_parm (tree, tree);
4187 extern tree finish_template_template_parm (tree, tree);
4188 extern tree begin_class_definition (tree);
4189 extern void finish_template_decl (tree);
4190 extern tree finish_template_type (tree, tree, int);
4191 extern tree finish_base_specifier (tree, tree, bool);
4192 extern void finish_member_declaration (tree);
4193 extern void qualified_name_lookup_error (tree, tree, tree);
4194 extern tree finish_id_expression (tree, tree, tree,
4195 cp_id_kind *, tree *,
4198 extern tree finish_typeof (tree);
4199 extern void finish_decl_cleanup (tree, tree);
4200 extern void finish_eh_cleanup (tree);
4201 extern void expand_body (tree);
4202 extern void finish_mem_initializers (tree);
4203 extern tree check_template_template_default_arg (tree);
4204 extern void expand_or_defer_fn (tree);
4205 extern void check_accessibility_of_qualified_id (tree, tree, tree);
4206 extern tree finish_qualified_id_expr (tree, tree, bool, bool);
4207 extern void simplify_aggr_init_expr (tree *);
4208 extern void finalize_nrv (tree *, tree, tree);
4209 extern void note_decl_for_pch (tree);
4212 extern void lang_check_failed (const char *, int,
4213 const char *) ATTRIBUTE_NORETURN;
4214 extern tree stabilize_expr (tree, tree *);
4215 extern void stabilize_call (tree, tree *);
4216 extern bool stabilize_init (tree, tree *);
4217 extern tree add_stmt_to_compound (tree, tree);
4218 extern tree cxx_maybe_build_cleanup (tree);
4219 extern void init_tree (void);
4220 extern int pod_type_p (tree);
4221 extern int zero_init_p (tree);
4222 extern tree canonical_type_variant (tree);
4223 extern tree copy_binfo (tree, tree, tree,
4225 extern int member_p (tree);
4226 extern cp_lvalue_kind real_lvalue_p (tree);
4227 extern bool builtin_valid_in_constant_expr_p (tree);
4228 extern tree build_min (enum tree_code, tree, ...);
4229 extern tree build_min_nt (enum tree_code, ...);
4230 extern tree build_min_non_dep (enum tree_code, tree, ...);
4231 extern tree build_cplus_new (tree, tree);
4232 extern tree get_target_expr (tree);
4233 extern tree build_cplus_array_type (tree, tree);
4234 extern tree hash_tree_cons (tree, tree, tree);
4235 extern tree hash_tree_chain (tree, tree);
4236 extern int is_overloaded_fn (tree);
4237 extern tree get_first_fn (tree);
4238 extern tree ovl_cons (tree, tree);
4239 extern tree build_overload (tree, tree);
4240 extern const char *cxx_printable_name (tree, int);
4241 extern tree build_exception_variant (tree, tree);
4242 extern tree bind_template_template_parm (tree, tree);
4243 extern tree array_type_nelts_total (tree);
4244 extern tree array_type_nelts_top (tree);
4245 extern tree break_out_target_exprs (tree);
4246 extern tree get_type_decl (tree);
4247 extern tree decl_namespace_context (tree);
4248 extern tree lvalue_type (tree);
4249 extern tree error_type (tree);
4250 extern int varargs_function_p (tree);
4251 extern int really_overloaded_fn (tree);
4252 extern bool cp_tree_equal (tree, tree);
4253 extern tree no_linkage_check (tree, bool);
4254 extern void debug_binfo (tree);
4255 extern tree build_dummy_object (tree);
4256 extern tree maybe_dummy_object (tree, tree *);
4257 extern int is_dummy_object (tree);
4258 extern const struct attribute_spec cxx_attribute_table[];
4259 extern tree make_ptrmem_cst (tree, tree);
4260 extern tree cp_build_type_attribute_variant (tree, tree);
4261 extern tree cp_build_qualified_type_real (tree, int, tsubst_flags_t);
4262 #define cp_build_qualified_type(TYPE, QUALS) \
4263 cp_build_qualified_type_real ((TYPE), (QUALS), tf_error | tf_warning)
4264 extern special_function_kind special_function_p (tree);
4265 extern int count_trees (tree);
4266 extern int char_type_p (tree);
4267 extern void verify_stmt_tree (tree);
4268 extern tree find_tree (tree, tree);
4269 extern linkage_kind decl_linkage (tree);
4270 extern tree cp_walk_subtrees (tree*, int*, walk_tree_fn,
4271 void*, struct pointer_set_t*);
4272 extern int cp_cannot_inline_tree_fn (tree*);
4273 extern tree cp_add_pending_fn_decls (void*,tree);
4274 extern int cp_auto_var_in_fn_p (tree,tree);
4275 extern tree fold_if_not_in_template (tree);
4276 extern tree rvalue (tree);
4279 extern int string_conv_p (tree, tree, int);
4280 extern tree cp_truthvalue_conversion (tree);
4281 extern tree condition_conversion (tree);
4282 extern tree require_complete_type (tree);
4283 extern tree complete_type (tree);
4284 extern tree complete_type_or_else (tree, tree);
4285 extern int type_unknown_p (tree);
4286 extern tree original_type (tree);
4287 extern bool comp_except_specs (tree, tree, bool);
4288 extern bool comptypes (tree, tree, int);
4289 extern bool compparms (tree, tree);
4290 extern int comp_cv_qualification (tree, tree);
4291 extern int comp_cv_qual_signature (tree, tree);
4292 extern tree cxx_sizeof_or_alignof_expr (tree, enum tree_code);
4293 extern tree cxx_sizeof_or_alignof_type (tree, enum tree_code, bool);
4294 #define cxx_sizeof_nowarn(T) cxx_sizeof_or_alignof_type (T, SIZEOF_EXPR, false)
4295 extern tree inline_conversion (tree);
4296 extern tree decay_conversion (tree);
4297 extern tree default_conversion (tree);
4298 extern tree build_class_member_access_expr (tree, tree, tree, bool);
4299 extern tree finish_class_member_access_expr (tree, tree);
4300 extern tree build_x_indirect_ref (tree, const char *);
4301 extern tree build_indirect_ref (tree, const char *);
4302 extern tree build_array_ref (tree, tree);
4303 extern tree get_member_function_from_ptrfunc (tree *, tree);
4304 extern tree build_x_binary_op (enum tree_code, tree, tree,
4306 extern tree build_x_unary_op (enum tree_code, tree);
4307 extern tree unary_complex_lvalue (enum tree_code, tree);
4308 extern tree build_x_conditional_expr (tree, tree, tree);
4309 extern tree build_x_compound_expr_from_list (tree, const char *);
4310 extern tree build_x_compound_expr (tree, tree);
4311 extern tree build_compound_expr (tree, tree);
4312 extern tree build_static_cast (tree, tree);
4313 extern tree build_reinterpret_cast (tree, tree);
4314 extern tree build_const_cast (tree, tree);
4315 extern tree build_c_cast (tree, tree);
4316 extern tree build_x_modify_expr (tree, enum tree_code, tree);
4317 extern tree build_modify_expr (tree, enum tree_code, tree);
4318 extern tree convert_for_initialization (tree, tree, tree, int,
4319 const char *, tree, int);
4320 extern int comp_ptr_ttypes (tree, tree);
4321 extern bool comp_ptr_ttypes_const (tree, tree);
4322 extern int ptr_reasonably_similar (tree, tree);
4323 extern tree build_ptrmemfunc (tree, tree, int, bool);
4324 extern int cp_type_quals (tree);
4325 extern bool cp_has_mutable_p (tree);
4326 extern bool at_least_as_qualified_p (tree, tree);
4327 extern void cp_apply_type_quals_to_decl (int, tree);
4328 extern tree build_ptrmemfunc1 (tree, tree, tree);
4329 extern void expand_ptrmemfunc_cst (tree, tree *, tree *);
4330 extern tree pfn_from_ptrmemfunc (tree);
4331 extern tree type_after_usual_arithmetic_conversions (tree, tree);
4332 extern tree composite_pointer_type (tree, tree, tree, tree,
4334 extern tree merge_types (tree, tree);
4335 extern tree check_return_expr (tree, bool *);
4336 #define cp_build_binary_op(code, arg1, arg2) \
4337 build_binary_op(code, arg1, arg2, 1)
4338 #define cxx_sizeof(T) cxx_sizeof_or_alignof_type (T, SIZEOF_EXPR, true)
4339 extern tree build_ptrmemfunc_access_expr (tree, tree);
4340 extern tree build_address (tree);
4341 extern tree build_nop (tree, tree);
4342 extern tree non_reference (tree);
4343 extern tree lookup_anon_field (tree, tree);
4344 extern bool invalid_nonstatic_memfn_p (tree);
4345 extern tree convert_member_func_to_ptr (tree, tree);
4346 extern tree convert_ptrmem (tree, tree, bool, bool);
4347 extern int lvalue_or_else (tree, enum lvalue_use);
4348 extern int lvalue_p (tree);
4351 extern void require_complete_eh_spec_types (tree, tree);
4352 extern void cxx_incomplete_type_diagnostic (tree, tree, int);
4353 #undef cxx_incomplete_type_error
4354 extern void cxx_incomplete_type_error (tree, tree);
4355 #define cxx_incomplete_type_error(V,T) \
4356 (cxx_incomplete_type_diagnostic ((V), (T), 0))
4357 extern tree error_not_base_type (tree, tree);
4358 extern tree binfo_or_else (tree, tree);
4359 extern void readonly_error (tree, const char *, int);
4360 extern void complete_type_check_abstract (tree);
4361 extern int abstract_virtuals_error (tree, tree);
4363 extern tree store_init_value (tree, tree);
4364 extern tree digest_init (tree, tree);
4365 extern tree build_scoped_ref (tree, tree, tree *);
4366 extern tree build_x_arrow (tree);
4367 extern tree build_m_component_ref (tree, tree);
4368 extern tree build_functional_cast (tree, tree);
4369 extern tree add_exception_specifier (tree, tree, int);
4370 extern tree merge_exception_specifiers (tree, tree);
4373 extern void init_mangle (void);
4374 extern void mangle_decl (tree);
4375 extern const char *mangle_type_string (tree);
4376 extern tree mangle_typeinfo_for_type (tree);
4377 extern tree mangle_typeinfo_string_for_type (tree);
4378 extern tree mangle_vtbl_for_type (tree);
4379 extern tree mangle_vtt_for_type (tree);
4380 extern tree mangle_ctor_vtbl_for_type (tree, tree);
4381 extern tree mangle_thunk (tree, int, tree, tree);
4382 extern tree mangle_conv_op_name_for_type (tree);
4383 extern tree mangle_guard_variable (tree);
4384 extern tree mangle_ref_init_variable (tree);
4387 extern bool cp_dump_tree (void *, tree);
4389 /* In cp/cp-objcp-common.c. */
4391 extern HOST_WIDE_INT cxx_get_alias_set (tree);
4392 extern bool cxx_warn_unused_global_decl (tree);
4393 extern tree cp_expr_size (tree);
4394 extern size_t cp_tree_size (enum tree_code);
4395 extern bool cp_var_mod_type_p (tree, tree);
4396 extern void cxx_initialize_diagnostics (struct diagnostic_context *);
4397 extern int cxx_types_compatible_p (tree, tree);
4398 extern void init_shadowed_var_for_decl (void);
4400 /* in cp-gimplify.c */
4401 extern int cp_gimplify_expr (tree *, tree *, tree *);
4402 extern void cp_genericize (tree);
4406 /* In order for the format checking to accept the C++ frontend
4407 diagnostic framework extensions, you must include this file before
4408 toplev.h, not after. We override the definition of GCC_DIAG_STYLE
4410 #undef GCC_DIAG_STYLE
4411 #define GCC_DIAG_STYLE __gcc_cxxdiag__
4412 #if GCC_VERSION >= 4001
4413 #define ATTRIBUTE_GCC_CXXDIAG(m, n) __attribute__ ((__format__ (GCC_DIAG_STYLE, m, n))) ATTRIBUTE_NONNULL(m)
4415 #define ATTRIBUTE_GCC_CXXDIAG(m, n) ATTRIBUTE_NONNULL(m)
4418 #endif /* ! GCC_CP_TREE_H */