1 /* Definitions for C++ parsing and type checking.
2 Copyright (C) 1987, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
4 Free Software Foundation, Inc.
5 Contributed by Michael Tiemann (tiemann@cygnus.com)
7 This file is part of GCC.
9 GCC is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3, or (at your option)
14 GCC is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with GCC; see the file COPYING3. If not see
21 <http://www.gnu.org/licenses/>. */
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 QUALIFIED_NAME_IS_TEMPLATE (in SCOPE_REF)
55 OMP_ATOMIC_DEPENDENT_P (in OMP_ATOMIC)
56 OMP_FOR_GIMPLIFYING_P (in OMP_FOR)
57 BASELINK_QUALIFIED_P (in BASELINK)
58 TARGET_EXPR_IMPLICIT_P (in TARGET_EXPR)
59 TEMPLATE_PARM_PARAMETER_PACK (in TEMPLATE_PARM_INDEX)
60 TYPE_REF_IS_RVALUE (in REFERENCE_TYPE)
61 1: IDENTIFIER_VIRTUAL_P (in IDENTIFIER_NODE)
62 TI_PENDING_TEMPLATE_FLAG.
63 TEMPLATE_PARMS_FOR_INLINE.
64 DELETE_EXPR_USE_VEC (in DELETE_EXPR).
65 (TREE_CALLS_NEW) (in _EXPR or _REF) (commented-out).
66 ICS_ELLIPSIS_FLAG (in _CONV)
67 DECL_INITIALIZED_P (in VAR_DECL)
68 TYPENAME_IS_CLASS_P (in TYPENAME_TYPE)
69 STMT_IS_FULL_EXPR_P (in _STMT)
70 2: IDENTIFIER_OPNAME_P (in IDENTIFIER_NODE)
71 ICS_THIS_FLAG (in _CONV)
72 DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (in VAR_DECL)
73 STATEMENT_LIST_TRY_BLOCK (in STATEMENT_LIST)
74 TYPENAME_IS_RESOLVING_P (in TYPE_NAME_TYPE)
75 3: (TREE_REFERENCE_EXPR) (in NON_LVALUE_EXPR) (commented-out).
76 ICS_BAD_FLAG (in _CONV)
77 FN_TRY_BLOCK_P (in TRY_BLOCK)
78 IDENTIFIER_CTOR_OR_DTOR_P (in IDENTIFIER_NODE)
79 BIND_EXPR_BODY_BLOCK (in BIND_EXPR)
80 DECL_NON_TRIVIALLY_INITIALIZED_P (in VAR_DECL)
81 4: TREE_HAS_CONSTRUCTOR (in INDIRECT_REF, SAVE_EXPR, CONSTRUCTOR,
83 IDENTIFIER_TYPENAME_P (in IDENTIFIER_NODE)
84 DECL_TINFO_P (in VAR_DECL)
85 5: C_IS_RESERVED_WORD (in IDENTIFIER_NODE)
86 DECL_VTABLE_OR_VTT_P (in VAR_DECL)
87 6: IDENTIFIER_REPO_CHOSEN (in IDENTIFIER_NODE)
88 DECL_CONSTRUCTION_VTABLE_P (in VAR_DECL)
89 TYPE_MARKED_P (in _TYPE)
91 Usage of TYPE_LANG_FLAG_?:
93 1: TYPE_HAS_CONSTRUCTOR.
96 4: TYPE_HAS_NONTRIVIAL_DESTRUCTOR
98 6: TYPE_DEPENDENT_P_VALID
100 Usage of DECL_LANG_FLAG_?:
101 0: DECL_ERROR_REPORTED (in VAR_DECL).
102 DECL_TEMPLATE_PARM_P (in PARM_DECL, CONST_DECL, TYPE_DECL, or TEMPLATE_DECL)
103 DECL_LOCAL_FUNCTION_P (in FUNCTION_DECL)
104 DECL_MUTABLE_P (in FIELD_DECL)
105 DECL_DEPENDENT_P (in USING_DECL)
106 1: C_TYPEDEF_EXPLICITLY_SIGNED (in TYPE_DECL).
107 DECL_TEMPLATE_INSTANTIATED (in a VAR_DECL or a FUNCTION_DECL)
108 DECL_MEMBER_TEMPLATE_P (in TEMPLATE_DECL)
109 FUNCTION_PARAMETER_PACK_P (in PARM_DECL)
110 2: DECL_THIS_EXTERN (in VAR_DECL or FUNCTION_DECL).
111 DECL_IMPLICIT_TYPEDEF_P (in a TYPE_DECL)
113 4: DECL_C_BIT_FIELD (in a FIELD_DECL)
114 DECL_ANON_UNION_VAR_P (in a VAR_DECL)
115 DECL_SELF_REFERENCE_P (in a TYPE_DECL)
116 DECL_INVALID_OVERRIDER_P (in a FUNCTION_DECL)
117 5: DECL_INTERFACE_KNOWN.
118 6: DECL_THIS_STATIC (in VAR_DECL or FUNCTION_DECL).
119 DECL_FIELD_IS_BASE (in FIELD_DECL)
120 7: DECL_DEAD_FOR_LOCAL (in VAR_DECL).
121 DECL_THUNK_P (in a member FUNCTION_DECL)
123 Usage of language-independent fields in a language-dependent manner:
126 This field is used by TYPENAME_TYPEs, TEMPLATE_TYPE_PARMs, and so
127 forth as a substitute for the mark bits provided in `lang_type'.
128 At present, only the six low-order bits are used.
131 For an ENUMERAL_TYPE, this is ENUM_TEMPLATE_INFO.
132 For a FUNCTION_TYPE or METHOD_TYPE, this is TYPE_RAISES_EXCEPTIONS
135 For a binfo, this is a TREE_LIST. There is an entry for each
136 virtual function declared either in BINFO or its direct and
137 indirect primary bases.
139 The BV_DELTA of each node gives the amount by which to adjust the
140 `this' pointer when calling the function. If the method is an
141 overridden version of a base class method, then it is assumed
142 that, prior to adjustment, the this pointer points to an object
145 The BV_VCALL_INDEX of each node, if non-NULL, gives the vtable
146 index of the vcall offset for this entry.
148 The BV_FN is the declaration for the virtual function itself.
151 This is an expression with POINTER_TYPE that gives the value
152 to which the vptr should be initialized. Use get_vtbl_decl_for_binfo
153 to extract the VAR_DECL for the complete vtable.
156 For a VAR_DECL this is DECL_ANON_UNION_ELEMS.
159 This field is NULL for a non-virtual function. For a virtual
160 function, it is eventually set to an INTEGER_CST indicating the
161 index in the vtable at which this function can be found. When
162 a virtual function is declared, but before it is known what
163 function is overridden, this field is the error_mark_node.
165 Temporarily, it may be set to a TREE_LIST whose TREE_VALUE is
166 the virtual function this one overrides, and whose TREE_CHAIN is
167 the old DECL_VINDEX. */
169 /* Language-specific tree checkers. */
171 #define VAR_OR_FUNCTION_DECL_CHECK(NODE) \
172 TREE_CHECK2(NODE,VAR_DECL,FUNCTION_DECL)
174 #define VAR_FUNCTION_OR_PARM_DECL_CHECK(NODE) \
175 TREE_CHECK3(NODE,VAR_DECL,FUNCTION_DECL,PARM_DECL)
177 #define VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK(NODE) \
178 TREE_CHECK4(NODE,VAR_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL)
180 #define BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK(NODE) \
181 TREE_CHECK(NODE,BOUND_TEMPLATE_TEMPLATE_PARM)
183 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
184 #define NON_THUNK_FUNCTION_CHECK(NODE) __extension__ \
185 ({ __typeof(NODE) const __t = (NODE); \
186 if (TREE_CODE (__t) != FUNCTION_DECL && \
187 TREE_CODE (__t) != TEMPLATE_DECL && __t->decl_common.lang_specific \
188 && __t->decl_common.lang_specific->decl_flags.thunk_p) \
189 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, 0); \
191 #define THUNK_FUNCTION_CHECK(NODE) __extension__ \
192 ({ __typeof (NODE) const __t = (NODE); \
193 if (TREE_CODE (__t) != FUNCTION_DECL || !__t->decl_common.lang_specific \
194 || !__t->decl_common.lang_specific->decl_flags.thunk_p) \
195 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, 0); \
198 #define NON_THUNK_FUNCTION_CHECK(NODE) (NODE)
199 #define THUNK_FUNCTION_CHECK(NODE) (NODE)
202 /* Language-dependent contents of an identifier. */
204 struct lang_identifier GTY(())
206 struct c_common_identifier c_common;
207 cxx_binding *namespace_bindings;
208 cxx_binding *bindings;
209 tree class_template_info;
213 /* In an IDENTIFIER_NODE, nonzero if this identifier is actually a
214 keyword. C_RID_CODE (node) is then the RID_* value of the keyword,
215 and C_RID_YYCODE is the token number wanted by Yacc. */
217 #define C_IS_RESERVED_WORD(ID) TREE_LANG_FLAG_5 (ID)
219 #define LANG_IDENTIFIER_CAST(NODE) \
220 ((struct lang_identifier*)IDENTIFIER_NODE_CHECK (NODE))
222 struct template_parm_index_s GTY(())
224 struct tree_common common;
230 typedef struct template_parm_index_s template_parm_index;
232 struct ptrmem_cst GTY(())
234 struct tree_common common;
235 /* This isn't used, but the middle-end expects all constants to have
240 typedef struct ptrmem_cst * ptrmem_cst_t;
242 #define IDENTIFIER_GLOBAL_VALUE(NODE) \
243 namespace_binding ((NODE), global_namespace)
244 #define SET_IDENTIFIER_GLOBAL_VALUE(NODE, VAL) \
245 set_namespace_binding ((NODE), global_namespace, (VAL))
246 #define IDENTIFIER_NAMESPACE_VALUE(NODE) \
247 namespace_binding ((NODE), current_namespace)
248 #define SET_IDENTIFIER_NAMESPACE_VALUE(NODE, VAL) \
249 set_namespace_binding ((NODE), current_namespace, (VAL))
251 #define CLEANUP_P(NODE) TREE_LANG_FLAG_0 (TRY_BLOCK_CHECK (NODE))
253 #define BIND_EXPR_TRY_BLOCK(NODE) \
254 TREE_LANG_FLAG_0 (BIND_EXPR_CHECK (NODE))
256 /* Used to mark the block around the member initializers and cleanups. */
257 #define BIND_EXPR_BODY_BLOCK(NODE) \
258 TREE_LANG_FLAG_3 (BIND_EXPR_CHECK (NODE))
259 #define FUNCTION_NEEDS_BODY_BLOCK(NODE) \
260 (DECL_CONSTRUCTOR_P (NODE) || DECL_DESTRUCTOR_P (NODE))
262 #define STATEMENT_LIST_NO_SCOPE(NODE) \
263 TREE_LANG_FLAG_0 (STATEMENT_LIST_CHECK (NODE))
264 #define STATEMENT_LIST_TRY_BLOCK(NODE) \
265 TREE_LANG_FLAG_2 (STATEMENT_LIST_CHECK (NODE))
267 /* Nonzero if this statement should be considered a full-expression,
268 i.e., if temporaries created during this statement should have
269 their destructors run at the end of this statement. */
270 #define STMT_IS_FULL_EXPR_P(NODE) TREE_LANG_FLAG_1 ((NODE))
272 /* Marks the result of a statement expression. */
273 #define EXPR_STMT_STMT_EXPR_RESULT(NODE) \
274 TREE_LANG_FLAG_0 (EXPR_STMT_CHECK (NODE))
276 /* Nonzero if this statement-expression does not have an associated scope. */
277 #define STMT_EXPR_NO_SCOPE(NODE) \
278 TREE_LANG_FLAG_0 (STMT_EXPR_CHECK (NODE))
280 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, in the usual
282 #define same_type_p(TYPE1, TYPE2) \
283 comptypes ((TYPE1), (TYPE2), COMPARE_STRICT)
285 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, ignoring
286 top-level qualifiers. */
287 #define same_type_ignoring_top_level_qualifiers_p(TYPE1, TYPE2) \
288 same_type_p (TYPE_MAIN_VARIANT (TYPE1), TYPE_MAIN_VARIANT (TYPE2))
290 /* Nonzero if we are presently building a statement tree, rather
291 than expanding each statement as we encounter it. */
292 #define building_stmt_tree() (cur_stmt_list != NULL_TREE)
294 /* Returns nonzero iff NODE is a declaration for the global function
296 #define DECL_MAIN_P(NODE) \
297 (DECL_EXTERN_C_FUNCTION_P (NODE) \
298 && DECL_NAME (NODE) != NULL_TREE \
299 && MAIN_NAME_P (DECL_NAME (NODE))) \
302 /* The overloaded FUNCTION_DECL. */
303 #define OVL_FUNCTION(NODE) \
304 (((struct tree_overload*)OVERLOAD_CHECK (NODE))->function)
305 #define OVL_CHAIN(NODE) TREE_CHAIN (NODE)
306 /* Polymorphic access to FUNCTION and CHAIN. */
307 #define OVL_CURRENT(NODE) \
308 ((TREE_CODE (NODE) == OVERLOAD) ? OVL_FUNCTION (NODE) : (NODE))
309 #define OVL_NEXT(NODE) \
310 ((TREE_CODE (NODE) == OVERLOAD) ? TREE_CHAIN (NODE) : NULL_TREE)
311 /* If set, this was imported in a using declaration.
312 This is not to confuse with being used somewhere, which
313 is not important for this node. */
314 #define OVL_USED(NODE) TREE_USED (NODE)
316 struct tree_overload GTY(())
318 struct tree_common common;
322 /* Returns true iff NODE is a BASELINK. */
323 #define BASELINK_P(NODE) \
324 (TREE_CODE (NODE) == BASELINK)
325 /* The BINFO indicating the base from which the BASELINK_FUNCTIONS came. */
326 #define BASELINK_BINFO(NODE) \
327 (((struct tree_baselink*) BASELINK_CHECK (NODE))->binfo)
328 /* The functions referred to by the BASELINK; either a FUNCTION_DECL,
329 a TEMPLATE_DECL, an OVERLOAD, or a TEMPLATE_ID_EXPR. */
330 #define BASELINK_FUNCTIONS(NODE) \
331 (((struct tree_baselink*) BASELINK_CHECK (NODE))->functions)
332 /* The BINFO in which the search for the functions indicated by this baselink
333 began. This base is used to determine the accessibility of functions
334 selected by overload resolution. */
335 #define BASELINK_ACCESS_BINFO(NODE) \
336 (((struct tree_baselink*) BASELINK_CHECK (NODE))->access_binfo)
337 /* For a type-conversion operator, the BASELINK_OPTYPE indicates the type
338 to which the conversion should occur. This value is important if
339 the BASELINK_FUNCTIONS include a template conversion operator --
340 the BASELINK_OPTYPE can be used to determine what type the user
342 #define BASELINK_OPTYPE(NODE) \
343 (TREE_CHAIN (BASELINK_CHECK (NODE)))
344 /* Nonzero if this baselink was from a qualified lookup. */
345 #define BASELINK_QUALIFIED_P(NODE) \
346 TREE_LANG_FLAG_0 (BASELINK_CHECK (NODE))
348 struct tree_baselink GTY(())
350 struct tree_common common;
356 /* The different kinds of ids that we encounter. */
358 typedef enum cp_id_kind
360 /* Not an id at all. */
362 /* An unqualified-id that is not a template-id. */
363 CP_ID_KIND_UNQUALIFIED,
364 /* An unqualified-id that is a dependent name. */
365 CP_ID_KIND_UNQUALIFIED_DEPENDENT,
366 /* An unqualified template-id. */
367 CP_ID_KIND_TEMPLATE_ID,
368 /* A qualified-id. */
372 /* Macros for access to language-specific slots in an identifier. */
374 #define IDENTIFIER_NAMESPACE_BINDINGS(NODE) \
375 (LANG_IDENTIFIER_CAST (NODE)->namespace_bindings)
376 #define IDENTIFIER_TEMPLATE(NODE) \
377 (LANG_IDENTIFIER_CAST (NODE)->class_template_info)
379 /* The IDENTIFIER_BINDING is the innermost cxx_binding for the
380 identifier. It's PREVIOUS is the next outermost binding. Each
381 VALUE field is a DECL for the associated declaration. Thus,
382 name lookup consists simply of pulling off the node at the front
383 of the list (modulo oddities for looking up the names of types,
384 and such.) You can use SCOPE field to determine the scope
385 that bound the name. */
386 #define IDENTIFIER_BINDING(NODE) \
387 (LANG_IDENTIFIER_CAST (NODE)->bindings)
389 /* TREE_TYPE only indicates on local and class scope the current
390 type. For namespace scope, the presence of a type in any namespace
391 is indicated with global_type_node, and the real type behind must
392 be found through lookup. */
393 #define IDENTIFIER_TYPE_VALUE(NODE) identifier_type_value (NODE)
394 #define REAL_IDENTIFIER_TYPE_VALUE(NODE) TREE_TYPE (NODE)
395 #define SET_IDENTIFIER_TYPE_VALUE(NODE,TYPE) (TREE_TYPE (NODE) = (TYPE))
396 #define IDENTIFIER_HAS_TYPE_VALUE(NODE) (IDENTIFIER_TYPE_VALUE (NODE) ? 1 : 0)
398 #define IDENTIFIER_LABEL_VALUE(NODE) \
399 (LANG_IDENTIFIER_CAST (NODE)->label_value)
400 #define SET_IDENTIFIER_LABEL_VALUE(NODE, VALUE) \
401 IDENTIFIER_LABEL_VALUE (NODE) = (VALUE)
403 /* Nonzero if this identifier is used as a virtual function name somewhere
404 (optimizes searches). */
405 #define IDENTIFIER_VIRTUAL_P(NODE) TREE_LANG_FLAG_1 (NODE)
407 /* Nonzero if this identifier is the prefix for a mangled C++ operator
409 #define IDENTIFIER_OPNAME_P(NODE) TREE_LANG_FLAG_2 (NODE)
411 /* Nonzero if this identifier is the name of a type-conversion
413 #define IDENTIFIER_TYPENAME_P(NODE) \
414 TREE_LANG_FLAG_4 (NODE)
416 /* Nonzero if this identifier is the name of a constructor or
418 #define IDENTIFIER_CTOR_OR_DTOR_P(NODE) \
419 TREE_LANG_FLAG_3 (NODE)
421 /* True iff NAME is the DECL_ASSEMBLER_NAME for an entity with vague
422 linkage which the prelinker has assigned to this translation
424 #define IDENTIFIER_REPO_CHOSEN(NAME) \
425 (TREE_LANG_FLAG_6 (NAME))
427 /* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */
428 #define C_TYPE_FIELDS_READONLY(TYPE) \
429 (LANG_TYPE_CLASS_CHECK (TYPE)->fields_readonly)
431 /* The tokens stored in the default argument. */
433 #define DEFARG_TOKENS(NODE) \
434 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->tokens)
435 #define DEFARG_INSTANTIATIONS(NODE) \
436 (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->instantiations)
438 struct tree_default_arg GTY (())
440 struct tree_common common;
441 struct cp_token_cache *tokens;
442 VEC(tree,gc) *instantiations;
445 /* The condition associated with the static assertion. This must be
446 an integral constant expression. */
447 #define STATIC_ASSERT_CONDITION(NODE) \
448 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->condition)
450 /* The message associated with the static assertion. This must be a
451 string constant, which will be emitted as an error message when the
452 static assert condition is false. */
453 #define STATIC_ASSERT_MESSAGE(NODE) \
454 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->message)
456 /* Source location information for a static assertion. */
457 #define STATIC_ASSERT_SOURCE_LOCATION(NODE) \
458 (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->location)
460 struct tree_static_assert GTY (())
462 struct tree_common common;
468 struct tree_argument_pack_select GTY (())
470 struct tree_common common;
475 /* The different kinds of traits that we encounter. */
477 typedef enum cp_trait_kind
479 CPTK_HAS_NOTHROW_ASSIGN,
480 CPTK_HAS_NOTHROW_CONSTRUCTOR,
481 CPTK_HAS_NOTHROW_COPY,
482 CPTK_HAS_TRIVIAL_ASSIGN,
483 CPTK_HAS_TRIVIAL_CONSTRUCTOR,
484 CPTK_HAS_TRIVIAL_COPY,
485 CPTK_HAS_TRIVIAL_DESTRUCTOR,
486 CPTK_HAS_VIRTUAL_DESTRUCTOR,
490 CPTK_IS_CONVERTIBLE_TO,
498 /* The types that we are processing. */
499 #define TRAIT_EXPR_TYPE1(NODE) \
500 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type1)
502 #define TRAIT_EXPR_TYPE2(NODE) \
503 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type2)
505 /* The specific trait that we are processing. */
506 #define TRAIT_EXPR_KIND(NODE) \
507 (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->kind)
509 struct tree_trait_expr GTY (())
511 struct tree_common common;
514 enum cp_trait_kind kind;
517 enum cp_tree_node_structure_enum {
528 TS_CP_ARGUMENT_PACK_SELECT,
533 /* The resulting tree type. */
534 union lang_tree_node GTY((desc ("cp_tree_node_structure (&%h)"),
535 chain_next ("(union lang_tree_node *)GENERIC_NEXT (&%h.generic)")))
537 union tree_node GTY ((tag ("TS_CP_GENERIC"),
538 desc ("tree_node_structure (&%h)"))) generic;
539 struct template_parm_index_s GTY ((tag ("TS_CP_TPI"))) tpi;
540 struct ptrmem_cst GTY ((tag ("TS_CP_PTRMEM"))) ptrmem;
541 struct tree_overload GTY ((tag ("TS_CP_OVERLOAD"))) overload;
542 struct tree_baselink GTY ((tag ("TS_CP_BASELINK"))) baselink;
543 struct tree_default_arg GTY ((tag ("TS_CP_DEFAULT_ARG"))) default_arg;
544 struct lang_identifier GTY ((tag ("TS_CP_IDENTIFIER"))) identifier;
545 struct tree_static_assert GTY ((tag ("TS_CP_STATIC_ASSERT")))
547 struct tree_argument_pack_select GTY ((tag ("TS_CP_ARGUMENT_PACK_SELECT")))
548 argument_pack_select;
549 struct tree_trait_expr GTY ((tag ("TS_CP_TRAIT_EXPR")))
557 CPTI_JAVA_SHORT_TYPE,
560 CPTI_JAVA_FLOAT_TYPE,
561 CPTI_JAVA_DOUBLE_TYPE,
563 CPTI_JAVA_BOOLEAN_TYPE,
566 CPTI_VTABLE_ENTRY_TYPE,
568 CPTI_VTABLE_INDEX_TYPE,
578 CPTI_CONST_TYPE_INFO_TYPE,
579 CPTI_TYPE_INFO_PTR_TYPE,
581 CPTI_GLOBAL_DELETE_FNDECL,
584 CPTI_CTOR_IDENTIFIER,
585 CPTI_COMPLETE_CTOR_IDENTIFIER,
586 CPTI_BASE_CTOR_IDENTIFIER,
587 CPTI_DTOR_IDENTIFIER,
588 CPTI_COMPLETE_DTOR_IDENTIFIER,
589 CPTI_BASE_DTOR_IDENTIFIER,
590 CPTI_DELETING_DTOR_IDENTIFIER,
591 CPTI_DELTA_IDENTIFIER,
592 CPTI_IN_CHARGE_IDENTIFIER,
593 CPTI_VTT_PARM_IDENTIFIER,
594 CPTI_NELTS_IDENTIFIER,
595 CPTI_THIS_IDENTIFIER,
597 CPTI_VPTR_IDENTIFIER,
601 CPTI_LANG_NAME_CPLUSPLUS,
604 CPTI_EMPTY_EXCEPT_SPEC,
607 CPTI_CALL_UNEXPECTED,
608 CPTI_ATEXIT_FN_PTR_TYPE,
618 extern GTY(()) tree cp_global_trees[CPTI_MAX];
620 #define java_byte_type_node cp_global_trees[CPTI_JAVA_BYTE_TYPE]
621 #define java_short_type_node cp_global_trees[CPTI_JAVA_SHORT_TYPE]
622 #define java_int_type_node cp_global_trees[CPTI_JAVA_INT_TYPE]
623 #define java_long_type_node cp_global_trees[CPTI_JAVA_LONG_TYPE]
624 #define java_float_type_node cp_global_trees[CPTI_JAVA_FLOAT_TYPE]
625 #define java_double_type_node cp_global_trees[CPTI_JAVA_DOUBLE_TYPE]
626 #define java_char_type_node cp_global_trees[CPTI_JAVA_CHAR_TYPE]
627 #define java_boolean_type_node cp_global_trees[CPTI_JAVA_BOOLEAN_TYPE]
629 #define wchar_decl_node cp_global_trees[CPTI_WCHAR_DECL]
630 #define vtable_entry_type cp_global_trees[CPTI_VTABLE_ENTRY_TYPE]
631 /* The type used to represent an offset by which to adjust the `this'
632 pointer in pointer-to-member types. */
633 #define delta_type_node cp_global_trees[CPTI_DELTA_TYPE]
634 /* The type used to represent an index into the vtable. */
635 #define vtable_index_type cp_global_trees[CPTI_VTABLE_INDEX_TYPE]
637 #define class_type_node cp_global_trees[CPTI_CLASS_TYPE]
638 #define unknown_type_node cp_global_trees[CPTI_UNKNOWN_TYPE]
639 #define vtbl_type_node cp_global_trees[CPTI_VTBL_TYPE]
640 #define vtbl_ptr_type_node cp_global_trees[CPTI_VTBL_PTR_TYPE]
641 #define std_node cp_global_trees[CPTI_STD]
642 #define abi_node cp_global_trees[CPTI_ABI]
643 #define const_type_info_type_node cp_global_trees[CPTI_CONST_TYPE_INFO_TYPE]
644 #define type_info_ptr_type cp_global_trees[CPTI_TYPE_INFO_PTR_TYPE]
645 #define abort_fndecl cp_global_trees[CPTI_ABORT_FNDECL]
646 #define global_delete_fndecl cp_global_trees[CPTI_GLOBAL_DELETE_FNDECL]
647 #define current_aggr cp_global_trees[CPTI_AGGR_TAG]
649 /* We cache these tree nodes so as to call get_identifier less
652 /* The name of a constructor that takes an in-charge parameter to
653 decide whether or not to construct virtual base classes. */
654 #define ctor_identifier cp_global_trees[CPTI_CTOR_IDENTIFIER]
655 /* The name of a constructor that constructs virtual base classes. */
656 #define complete_ctor_identifier cp_global_trees[CPTI_COMPLETE_CTOR_IDENTIFIER]
657 /* The name of a constructor that does not construct virtual base classes. */
658 #define base_ctor_identifier cp_global_trees[CPTI_BASE_CTOR_IDENTIFIER]
659 /* The name of a destructor that takes an in-charge parameter to
660 decide whether or not to destroy virtual base classes and whether
661 or not to delete the object. */
662 #define dtor_identifier cp_global_trees[CPTI_DTOR_IDENTIFIER]
663 /* The name of a destructor that destroys virtual base classes. */
664 #define complete_dtor_identifier cp_global_trees[CPTI_COMPLETE_DTOR_IDENTIFIER]
665 /* The name of a destructor that does not destroy virtual base
667 #define base_dtor_identifier cp_global_trees[CPTI_BASE_DTOR_IDENTIFIER]
668 /* The name of a destructor that destroys virtual base classes, and
669 then deletes the entire object. */
670 #define deleting_dtor_identifier cp_global_trees[CPTI_DELETING_DTOR_IDENTIFIER]
671 #define delta_identifier cp_global_trees[CPTI_DELTA_IDENTIFIER]
672 #define in_charge_identifier cp_global_trees[CPTI_IN_CHARGE_IDENTIFIER]
673 /* The name of the parameter that contains a pointer to the VTT to use
674 for this subobject constructor or destructor. */
675 #define vtt_parm_identifier cp_global_trees[CPTI_VTT_PARM_IDENTIFIER]
676 #define nelts_identifier cp_global_trees[CPTI_NELTS_IDENTIFIER]
677 #define this_identifier cp_global_trees[CPTI_THIS_IDENTIFIER]
678 #define pfn_identifier cp_global_trees[CPTI_PFN_IDENTIFIER]
679 #define vptr_identifier cp_global_trees[CPTI_VPTR_IDENTIFIER]
680 /* The name of the std namespace. */
681 #define std_identifier cp_global_trees[CPTI_STD_IDENTIFIER]
682 #define lang_name_c cp_global_trees[CPTI_LANG_NAME_C]
683 #define lang_name_cplusplus cp_global_trees[CPTI_LANG_NAME_CPLUSPLUS]
684 #define lang_name_java cp_global_trees[CPTI_LANG_NAME_JAVA]
686 /* Exception specifier used for throw(). */
687 #define empty_except_spec cp_global_trees[CPTI_EMPTY_EXCEPT_SPEC]
689 /* If non-NULL, a POINTER_TYPE equivalent to (java::lang::Class*). */
690 #define jclass_node cp_global_trees[CPTI_JCLASS]
692 /* The declaration for `std::terminate'. */
693 #define terminate_node cp_global_trees[CPTI_TERMINATE]
695 /* The declaration for "__cxa_call_unexpected". */
696 #define call_unexpected_node cp_global_trees[CPTI_CALL_UNEXPECTED]
698 /* The type of the function-pointer argument to "__cxa_atexit" (or
699 "std::atexit", if "__cxa_atexit" is not being used). */
700 #define atexit_fn_ptr_type_node cp_global_trees[CPTI_ATEXIT_FN_PTR_TYPE]
702 /* A pointer to `std::atexit'. */
703 #define atexit_node cp_global_trees[CPTI_ATEXIT]
705 /* A pointer to `__dso_handle'. */
706 #define dso_handle_node cp_global_trees[CPTI_DSO_HANDLE]
708 /* The declaration of the dynamic_cast runtime. */
709 #define dynamic_cast_node cp_global_trees[CPTI_DCAST]
711 /* The type of a destructor. */
712 #define cleanup_type cp_global_trees[CPTI_CLEANUP_TYPE]
714 /* The type of the vtt parameter passed to subobject constructors and
716 #define vtt_parm_type cp_global_trees[CPTI_VTT_PARM_TYPE]
718 /* A TREE_LIST of the dynamic classes whose vtables may have to be
719 emitted in this translation unit. */
721 #define keyed_classes cp_global_trees[CPTI_KEYED_CLASSES]
723 /* Node to indicate default access. This must be distinct from the
724 access nodes in tree.h. */
726 #define access_default_node null_node
730 struct saved_scope GTY(())
732 VEC(cxx_saved_binding,gc) *old_bindings;
737 tree access_specifier;
739 VEC(tree,gc) *lang_base;
742 struct cp_binding_level *x_previous_class_level;
745 int x_processing_template_decl;
746 int x_processing_specialization;
747 BOOL_BITFIELD x_processing_explicit_instantiation : 1;
748 BOOL_BITFIELD need_pop_function_context : 1;
749 BOOL_BITFIELD skip_evaluation : 1;
751 struct stmt_tree_s x_stmt_tree;
753 struct cp_binding_level *class_bindings;
754 struct cp_binding_level *bindings;
756 struct saved_scope *prev;
759 /* The current open namespace. */
761 #define current_namespace scope_chain->old_namespace
763 /* The stack for namespaces of current declarations. */
765 #define decl_namespace_list scope_chain->decl_ns_list
767 /* IDENTIFIER_NODE: name of current class */
769 #define current_class_name scope_chain->class_name
771 /* _TYPE: the type of the current class */
773 #define current_class_type scope_chain->class_type
775 /* When parsing a class definition, the access specifier most recently
776 given by the user, or, if no access specifier was given, the
777 default value appropriate for the kind of class (i.e., struct,
780 #define current_access_specifier scope_chain->access_specifier
782 /* Pointer to the top of the language name stack. */
784 #define current_lang_base scope_chain->lang_base
785 #define current_lang_name scope_chain->lang_name
787 /* When parsing a template declaration, a TREE_LIST represents the
788 active template parameters. Each node in the list represents one
789 level of template parameters. The innermost level is first in the
790 list. The depth of each level is stored as an INTEGER_CST in the
791 TREE_PURPOSE of each node. The parameters for that level are
792 stored in the TREE_VALUE. */
794 #define current_template_parms scope_chain->template_parms
796 #define processing_template_decl scope_chain->x_processing_template_decl
797 #define processing_specialization scope_chain->x_processing_specialization
798 #define processing_explicit_instantiation scope_chain->x_processing_explicit_instantiation
800 /* The cached class binding level, from the most recently exited
801 class, or NULL if none. */
803 #define previous_class_level scope_chain->x_previous_class_level
805 /* A list of private types mentioned, for deferred access checking. */
807 extern GTY(()) struct saved_scope *scope_chain;
809 struct cxx_int_tree_map GTY(())
815 extern unsigned int cxx_int_tree_map_hash (const void *);
816 extern int cxx_int_tree_map_eq (const void *, const void *);
818 /* Global state pertinent to the current function. */
820 struct language_function GTY(())
822 struct c_language_function base;
825 tree x_current_class_ptr;
826 tree x_current_class_ref;
827 tree x_eh_spec_block;
828 tree x_in_charge_parm;
832 BOOL_BITFIELD returns_value : 1;
833 BOOL_BITFIELD returns_null : 1;
834 BOOL_BITFIELD returns_abnormally : 1;
835 BOOL_BITFIELD in_function_try_handler : 1;
836 BOOL_BITFIELD in_base_initializer : 1;
838 /* True if this function can throw an exception. */
839 BOOL_BITFIELD can_throw : 1;
841 htab_t GTY((param_is(struct named_label_entry))) x_named_labels;
842 struct cp_binding_level *bindings;
843 VEC(tree,gc) *x_local_names;
844 htab_t GTY((param_is (struct cxx_int_tree_map))) extern_decl_map;
847 /* The current C++-specific per-function global variables. */
849 #define cp_function_chain (cfun->language)
851 /* In a constructor destructor, the point at which all derived class
852 destroying/construction has been has been done. Ie. just before a
853 constructor returns, or before any base class destroying will be done
856 #define cdtor_label cp_function_chain->x_cdtor_label
858 /* When we're processing a member function, current_class_ptr is the
859 PARM_DECL for the `this' pointer. The current_class_ref is an
860 expression for `*this'. */
862 #define current_class_ptr \
863 (cfun ? cp_function_chain->x_current_class_ptr : NULL_TREE)
864 #define current_class_ref \
865 (cfun ? cp_function_chain->x_current_class_ref : NULL_TREE)
867 /* The EH_SPEC_BLOCK for the exception-specifiers for the current
870 #define current_eh_spec_block cp_function_chain->x_eh_spec_block
872 /* The `__in_chrg' parameter for the current function. Only used for
873 constructors and destructors. */
875 #define current_in_charge_parm cp_function_chain->x_in_charge_parm
877 /* The `__vtt_parm' parameter for the current function. Only used for
878 constructors and destructors. */
880 #define current_vtt_parm cp_function_chain->x_vtt_parm
882 /* Set to 0 at beginning of a function definition, set to 1 if
883 a return statement that specifies a return value is seen. */
885 #define current_function_returns_value cp_function_chain->returns_value
887 /* Set to 0 at beginning of a function definition, set to 1 if
888 a return statement with no argument is seen. */
890 #define current_function_returns_null cp_function_chain->returns_null
892 /* Set to 0 at beginning of a function definition, set to 1 if
893 a call to a noreturn function is seen. */
895 #define current_function_returns_abnormally \
896 cp_function_chain->returns_abnormally
898 /* Nonzero if we are processing a base initializer. Zero elsewhere. */
899 #define in_base_initializer cp_function_chain->in_base_initializer
901 #define in_function_try_handler cp_function_chain->in_function_try_handler
903 /* Expression always returned from function, or error_mark_node
904 otherwise, for use by the automatic named return value optimization. */
906 #define current_function_return_value \
907 (cp_function_chain->x_return_value)
909 /* True if NAME is the IDENTIFIER_NODE for an overloaded "operator
910 new" or "operator delete". */
911 #define NEW_DELETE_OPNAME_P(NAME) \
912 ((NAME) == ansi_opname (NEW_EXPR) \
913 || (NAME) == ansi_opname (VEC_NEW_EXPR) \
914 || (NAME) == ansi_opname (DELETE_EXPR) \
915 || (NAME) == ansi_opname (VEC_DELETE_EXPR))
917 #define ansi_opname(CODE) \
918 (operator_name_info[(int) (CODE)].identifier)
919 #define ansi_assopname(CODE) \
920 (assignment_operator_name_info[(int) (CODE)].identifier)
922 /* True if NODE is an erroneous expression. */
924 #define error_operand_p(NODE) \
925 ((NODE) == error_mark_node \
926 || ((NODE) && TREE_TYPE ((NODE)) == error_mark_node))
928 /* C++ language-specific tree codes. */
929 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) SYM,
930 enum cplus_tree_code {
931 CP_DUMMY_TREE_CODE = LAST_C_TREE_CODE,
932 #include "cp-tree.def"
937 /* TRUE if a tree code represents a statement. */
938 extern bool statement_code_p[MAX_TREE_CODES];
940 #define STATEMENT_CODE_P(CODE) statement_code_p[(int) (CODE)]
942 enum languages { lang_c, lang_cplusplus, lang_java };
944 /* Macros to make error reporting functions' lives easier. */
945 #define TYPE_IDENTIFIER(NODE) (DECL_NAME (TYPE_NAME (NODE)))
946 #define TYPE_LINKAGE_IDENTIFIER(NODE) \
947 (TYPE_IDENTIFIER (TYPE_MAIN_VARIANT (NODE)))
948 #define TYPE_NAME_STRING(NODE) (IDENTIFIER_POINTER (TYPE_IDENTIFIER (NODE)))
949 #define TYPE_NAME_LENGTH(NODE) (IDENTIFIER_LENGTH (TYPE_IDENTIFIER (NODE)))
951 /* Nonzero if NODE has no name for linkage purposes. */
952 #define TYPE_ANONYMOUS_P(NODE) \
953 (TAGGED_TYPE_P (NODE) && ANON_AGGRNAME_P (TYPE_LINKAGE_IDENTIFIER (NODE)))
955 /* The _DECL for this _TYPE. */
956 #define TYPE_MAIN_DECL(NODE) (TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE)))
958 /* Nonzero if T is a class (or struct or union) type. Also nonzero
959 for template type parameters, typename types, and instantiated
960 template template parameters. Despite its name,
961 this macro has nothing to do with the definition of aggregate given
962 in the standard. Think of this macro as MAYBE_CLASS_TYPE_P. Keep
963 these checks in ascending code order. */
964 #define IS_AGGR_TYPE(T) \
965 (TREE_CODE (T) == TEMPLATE_TYPE_PARM \
966 || TREE_CODE (T) == TYPENAME_TYPE \
967 || TREE_CODE (T) == TYPEOF_TYPE \
968 || TREE_CODE (T) == BOUND_TEMPLATE_TEMPLATE_PARM \
969 || TREE_CODE (T) == DECLTYPE_TYPE \
970 || TYPE_LANG_FLAG_5 (T))
972 /* Set IS_AGGR_TYPE for T to VAL. T must be a class, struct, or
974 #define SET_IS_AGGR_TYPE(T, VAL) \
975 (TYPE_LANG_FLAG_5 (T) = (VAL))
977 /* Nonzero if T is a class type. Zero for template type parameters,
978 typename types, and so forth. */
979 #define CLASS_TYPE_P(T) \
980 (IS_AGGR_TYPE_CODE (TREE_CODE (T)) && TYPE_LANG_FLAG_5 (T))
982 /* Nonzero if T is a class type but not an union. */
983 #define NON_UNION_CLASS_TYPE_P(T) \
984 (CLASS_TYPE_P (T) && TREE_CODE (T) != UNION_TYPE)
986 /* Keep these checks in ascending code order. */
987 #define IS_AGGR_TYPE_CODE(T) \
988 ((T) == RECORD_TYPE || (T) == UNION_TYPE)
989 #define TAGGED_TYPE_P(T) \
990 (CLASS_TYPE_P (T) || TREE_CODE (T) == ENUMERAL_TYPE)
991 /* A tagged type or a dependent type that might be a tagged type when
992 instantiated. Like IS_AGGR_TYPE, but include enums as well. */
993 #define MAYBE_TAGGED_TYPE_P(T) \
994 (IS_AGGR_TYPE(T) || TREE_CODE (T) == ENUMERAL_TYPE)
995 #define IS_OVERLOAD_TYPE(T) TAGGED_TYPE_P (T)
997 /* True if this a "Java" type, defined in 'extern "Java"'. */
998 #define TYPE_FOR_JAVA(NODE) TYPE_LANG_FLAG_3 (NODE)
1000 /* True if this type is dependent. This predicate is only valid if
1001 TYPE_DEPENDENT_P_VALID is true. */
1002 #define TYPE_DEPENDENT_P(NODE) TYPE_LANG_FLAG_0 (NODE)
1004 /* True if dependent_type_p has been called for this type, with the
1005 result that TYPE_DEPENDENT_P is valid. */
1006 #define TYPE_DEPENDENT_P_VALID(NODE) TYPE_LANG_FLAG_6(NODE)
1008 /* Nonzero if this type is const-qualified. */
1009 #define CP_TYPE_CONST_P(NODE) \
1010 ((cp_type_quals (NODE) & TYPE_QUAL_CONST) != 0)
1012 /* Nonzero if this type is volatile-qualified. */
1013 #define CP_TYPE_VOLATILE_P(NODE) \
1014 ((cp_type_quals (NODE) & TYPE_QUAL_VOLATILE) != 0)
1016 /* Nonzero if this type is restrict-qualified. */
1017 #define CP_TYPE_RESTRICT_P(NODE) \
1018 ((cp_type_quals (NODE) & TYPE_QUAL_RESTRICT) != 0)
1020 /* Nonzero if this type is const-qualified, but not
1021 volatile-qualified. Other qualifiers are ignored. This macro is
1022 used to test whether or not it is OK to bind an rvalue to a
1024 #define CP_TYPE_CONST_NON_VOLATILE_P(NODE) \
1025 ((cp_type_quals (NODE) & (TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE)) \
1028 #define FUNCTION_ARG_CHAIN(NODE) \
1029 TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (NODE)))
1031 /* Given a FUNCTION_DECL, returns the first TREE_LIST out of TYPE_ARG_TYPES
1032 which refers to a user-written parameter. */
1033 #define FUNCTION_FIRST_USER_PARMTYPE(NODE) \
1034 skip_artificial_parms_for ((NODE), TYPE_ARG_TYPES (TREE_TYPE (NODE)))
1036 /* Similarly, but for DECL_ARGUMENTS. */
1037 #define FUNCTION_FIRST_USER_PARM(NODE) \
1038 skip_artificial_parms_for ((NODE), DECL_ARGUMENTS (NODE))
1040 #define PROMOTES_TO_AGGR_TYPE(NODE, CODE) \
1041 (((CODE) == TREE_CODE (NODE) \
1042 && IS_AGGR_TYPE (TREE_TYPE (NODE))) \
1043 || IS_AGGR_TYPE (NODE))
1045 /* Nonzero iff TYPE is derived from PARENT. Ignores accessibility and
1046 ambiguity issues. */
1047 #define DERIVED_FROM_P(PARENT, TYPE) \
1048 (lookup_base ((TYPE), (PARENT), ba_any, NULL) != NULL_TREE)
1049 /* Nonzero iff TYPE is uniquely derived from PARENT. Ignores
1051 #define UNIQUELY_DERIVED_FROM_P(PARENT, TYPE) \
1052 (lookup_base ((TYPE), (PARENT), ba_unique | ba_quiet, NULL) != NULL_TREE)
1053 /* Nonzero iff TYPE is publicly & uniquely derived from PARENT. */
1054 #define PUBLICLY_UNIQUELY_DERIVED_P(PARENT, TYPE) \
1055 (lookup_base ((TYPE), (PARENT), ba_ignore_scope | ba_check | ba_quiet, \
1058 /* Gives the visibility specification for a class type. */
1059 #define CLASSTYPE_VISIBILITY(TYPE) \
1060 DECL_VISIBILITY (TYPE_NAME (TYPE))
1061 #define CLASSTYPE_VISIBILITY_SPECIFIED(TYPE) \
1062 DECL_VISIBILITY_SPECIFIED (TYPE_NAME (TYPE))
1064 typedef struct tree_pair_s GTY (())
1069 typedef tree_pair_s *tree_pair_p;
1070 DEF_VEC_O (tree_pair_s);
1071 DEF_VEC_ALLOC_O (tree_pair_s,gc);
1073 /* This is a few header flags for 'struct lang_type'. Actually,
1074 all but the first are used only for lang_type_class; they
1075 are put in this structure to save space. */
1076 struct lang_type_header GTY(())
1078 BOOL_BITFIELD is_lang_type_class : 1;
1080 BOOL_BITFIELD has_type_conversion : 1;
1081 BOOL_BITFIELD has_init_ref : 1;
1082 BOOL_BITFIELD has_default_ctor : 1;
1083 BOOL_BITFIELD const_needs_init : 1;
1084 BOOL_BITFIELD ref_needs_init : 1;
1085 BOOL_BITFIELD has_const_assign_ref : 1;
1087 BOOL_BITFIELD spare : 1;
1090 /* This structure provides additional information above and beyond
1091 what is provide in the ordinary tree_type. In the past, we used it
1092 for the types of class types, template parameters types, typename
1093 types, and so forth. However, there can be many (tens to hundreds
1094 of thousands) of template parameter types in a compilation, and
1095 there's no need for this additional information in that case.
1096 Therefore, we now use this data structure only for class types.
1098 In the past, it was thought that there would be relatively few
1099 class types. However, in the presence of heavy use of templates,
1100 many (i.e., thousands) of classes can easily be generated.
1101 Therefore, we should endeavor to keep the size of this structure to
1103 struct lang_type_class GTY(())
1105 struct lang_type_header h;
1107 unsigned char align;
1109 unsigned has_mutable : 1;
1110 unsigned com_interface : 1;
1111 unsigned non_pod_class : 1;
1112 unsigned nearly_empty_p : 1;
1113 unsigned user_align : 1;
1114 unsigned has_assign_ref : 1;
1115 unsigned has_new : 1;
1116 unsigned has_array_new : 1;
1118 unsigned gets_delete : 2;
1119 unsigned interface_only : 1;
1120 unsigned interface_unknown : 1;
1121 unsigned contains_empty_class_p : 1;
1122 unsigned anon_aggr : 1;
1123 unsigned non_zero_init : 1;
1124 unsigned empty_p : 1;
1126 unsigned vec_new_uses_cookie : 1;
1127 unsigned declared_class : 1;
1128 unsigned diamond_shaped : 1;
1129 unsigned repeated_base : 1;
1130 unsigned being_defined : 1;
1131 unsigned java_interface : 1;
1132 unsigned debug_requested : 1;
1133 unsigned fields_readonly : 1;
1135 unsigned use_template : 2;
1136 unsigned ptrmemfunc_flag : 1;
1137 unsigned was_anonymous : 1;
1138 unsigned lazy_default_ctor : 1;
1139 unsigned lazy_copy_ctor : 1;
1140 unsigned lazy_assignment_op : 1;
1141 unsigned lazy_destructor : 1;
1143 unsigned has_const_init_ref : 1;
1144 unsigned has_complex_init_ref : 1;
1145 unsigned has_complex_assign_ref : 1;
1146 unsigned non_aggregate : 1;
1147 unsigned has_complex_dflt : 1;
1149 /* When adding a flag here, consider whether or not it ought to
1150 apply to a template instance if it applies to the template. If
1151 so, make sure to copy it in instantiate_class_template! */
1153 /* There are some bits left to fill out a 32-bit word. Keep track
1154 of this by updating the size of this bitfield whenever you add or
1156 unsigned dummy : 11;
1159 VEC(tree_pair_s,gc) *vcall_indices;
1162 VEC(tree,gc) *vbases;
1163 binding_table nested_udts;
1165 VEC(tree,gc) *pure_virtuals;
1166 tree friend_classes;
1167 VEC(tree,gc) * GTY((reorder ("resort_type_method_vec"))) methods;
1171 tree befriending_classes;
1172 /* In a RECORD_TYPE, information specific to Objective-C++, such
1173 as a list of adopted protocols or a pointer to a corresponding
1174 @interface. See objc/objc-act.h for details. */
1178 struct lang_type_ptrmem GTY(())
1180 struct lang_type_header h;
1184 struct lang_type GTY(())
1188 struct lang_type_header GTY((skip (""))) h;
1189 struct lang_type_class GTY((tag ("1"))) c;
1190 struct lang_type_ptrmem GTY((tag ("0"))) ptrmem;
1191 } GTY((desc ("%h.h.is_lang_type_class"))) u;
1194 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1196 #define LANG_TYPE_CLASS_CHECK(NODE) __extension__ \
1197 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1198 if (! lt->u.h.is_lang_type_class) \
1199 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1202 #define LANG_TYPE_PTRMEM_CHECK(NODE) __extension__ \
1203 ({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
1204 if (lt->u.h.is_lang_type_class) \
1205 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1210 #define LANG_TYPE_CLASS_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.c)
1211 #define LANG_TYPE_PTRMEM_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.ptrmem)
1213 #endif /* ENABLE_TREE_CHECKING */
1215 /* Fields used for storing information before the class is defined.
1216 After the class is defined, these fields hold other information. */
1218 /* VEC(tree) of friends which were defined inline in this class
1220 #define CLASSTYPE_INLINE_FRIENDS(NODE) CLASSTYPE_PURE_VIRTUALS (NODE)
1222 /* Nonzero for _CLASSTYPE means that operator delete is defined. */
1223 #define TYPE_GETS_DELETE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->gets_delete)
1224 #define TYPE_GETS_REG_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 1)
1226 /* Nonzero if `new NODE[x]' should cause the allocation of extra
1227 storage to indicate how many array elements are in use. */
1228 #define TYPE_VEC_NEW_USES_COOKIE(NODE) \
1229 (CLASS_TYPE_P (NODE) \
1230 && LANG_TYPE_CLASS_CHECK (NODE)->vec_new_uses_cookie)
1232 /* Nonzero means that this _CLASSTYPE node defines ways of converting
1233 itself to other types. */
1234 #define TYPE_HAS_CONVERSION(NODE) \
1235 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_type_conversion)
1237 /* Nonzero means that NODE (a class type) has a default constructor --
1238 but that it has not yet been declared. */
1239 #define CLASSTYPE_LAZY_DEFAULT_CTOR(NODE) \
1240 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_default_ctor)
1242 /* Nonzero means that NODE (a class type) has a copy constructor --
1243 but that it has not yet been declared. */
1244 #define CLASSTYPE_LAZY_COPY_CTOR(NODE) \
1245 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_ctor)
1247 /* Nonzero means that NODE (a class type) has an assignment operator
1248 -- but that it has not yet been declared. */
1249 #define CLASSTYPE_LAZY_ASSIGNMENT_OP(NODE) \
1250 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_assignment_op)
1252 /* Nonzero means that NODE (a class type) has a destructor -- but that
1253 it has not yet been declared. */
1254 #define CLASSTYPE_LAZY_DESTRUCTOR(NODE) \
1255 (LANG_TYPE_CLASS_CHECK (NODE)->lazy_destructor)
1257 /* Nonzero means that this _CLASSTYPE node overloads operator=(X&). */
1258 #define TYPE_HAS_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_assign_ref)
1260 /* True iff the class type NODE has an "operator =" whose parameter
1261 has a parameter of type "const X&". */
1262 #define TYPE_HAS_CONST_ASSIGN_REF(NODE) \
1263 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_const_assign_ref)
1265 /* Nonzero means that this _CLASSTYPE node has an X(X&) constructor. */
1266 #define TYPE_HAS_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->h.has_init_ref)
1267 #define TYPE_HAS_CONST_INIT_REF(NODE) \
1268 (LANG_TYPE_CLASS_CHECK (NODE)->has_const_init_ref)
1270 /* Nonzero if this class defines an overloaded operator new. (An
1271 operator new [] doesn't count.) */
1272 #define TYPE_HAS_NEW_OPERATOR(NODE) \
1273 (LANG_TYPE_CLASS_CHECK (NODE)->has_new)
1275 /* Nonzero if this class defines an overloaded operator new[]. */
1276 #define TYPE_HAS_ARRAY_NEW_OPERATOR(NODE) \
1277 (LANG_TYPE_CLASS_CHECK (NODE)->has_array_new)
1279 /* Nonzero means that this type is being defined. I.e., the left brace
1280 starting the definition of this type has been seen. */
1281 #define TYPE_BEING_DEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->being_defined)
1283 /* Mark bits for repeated base checks. */
1284 #define TYPE_MARKED_P(NODE) TREE_LANG_FLAG_6 (TYPE_CHECK (NODE))
1286 /* Nonzero if the class NODE has multiple paths to the same (virtual)
1288 #define CLASSTYPE_DIAMOND_SHAPED_P(NODE) \
1289 (LANG_TYPE_CLASS_CHECK(NODE)->diamond_shaped)
1291 /* Nonzero if the class NODE has multiple instances of the same base
1293 #define CLASSTYPE_REPEATED_BASE_P(NODE) \
1294 (LANG_TYPE_CLASS_CHECK(NODE)->repeated_base)
1296 /* The member function with which the vtable will be emitted:
1297 the first noninline non-pure-virtual member function. NULL_TREE
1298 if there is no key function or if this is a class template */
1299 #define CLASSTYPE_KEY_METHOD(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->key_method)
1301 /* Vector member functions defined in this class. Each element is
1302 either a FUNCTION_DECL, a TEMPLATE_DECL, or an OVERLOAD. All
1303 functions with the same name end up in the same slot. The first
1304 two elements are for constructors, and destructors, respectively.
1305 All template conversion operators to innermost template dependent
1306 types are overloaded on the next slot, if they exist. Note, the
1307 names for these functions will not all be the same. The
1308 non-template conversion operators & templated conversions to
1309 non-innermost template types are next, followed by ordinary member
1310 functions. There may be empty entries at the end of the vector.
1311 The conversion operators are unsorted. The ordinary member
1312 functions are sorted, once the class is complete. */
1313 #define CLASSTYPE_METHOD_VEC(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->methods)
1315 /* For class templates, this is a TREE_LIST of all member data,
1316 functions, types, and friends in the order of declaration.
1317 The TREE_PURPOSE of each TREE_LIST is NULL_TREE for a friend,
1318 and the RECORD_TYPE for the class template otherwise. */
1319 #define CLASSTYPE_DECL_LIST(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->decl_list)
1321 /* The slot in the CLASSTYPE_METHOD_VEC where constructors go. */
1322 #define CLASSTYPE_CONSTRUCTOR_SLOT 0
1324 /* The slot in the CLASSTYPE_METHOD_VEC where destructors go. */
1325 #define CLASSTYPE_DESTRUCTOR_SLOT 1
1327 /* The first slot in the CLASSTYPE_METHOD_VEC where conversion
1328 operators can appear. */
1329 #define CLASSTYPE_FIRST_CONVERSION_SLOT 2
1331 /* A FUNCTION_DECL or OVERLOAD for the constructors for NODE. These
1332 are the constructors that take an in-charge parameter. */
1333 #define CLASSTYPE_CONSTRUCTORS(NODE) \
1334 (VEC_index (tree, CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_CONSTRUCTOR_SLOT))
1336 /* A FUNCTION_DECL for the destructor for NODE. These are the
1337 destructors that take an in-charge parameter. If
1338 CLASSTYPE_LAZY_DESTRUCTOR is true, then this entry will be NULL
1339 until the destructor is created with lazily_declare_fn. */
1340 #define CLASSTYPE_DESTRUCTORS(NODE) \
1341 (CLASSTYPE_METHOD_VEC (NODE) \
1342 ? VEC_index (tree, CLASSTYPE_METHOD_VEC (NODE), CLASSTYPE_DESTRUCTOR_SLOT) \
1345 /* A dictionary of the nested user-defined-types (class-types, or enums)
1346 found within this class. This table includes nested member class
1348 #define CLASSTYPE_NESTED_UTDS(NODE) \
1349 (LANG_TYPE_CLASS_CHECK (NODE)->nested_udts)
1351 /* Nonzero if NODE has a primary base class, i.e., a base class with
1352 which it shares the virtual function table pointer. */
1353 #define CLASSTYPE_HAS_PRIMARY_BASE_P(NODE) \
1354 (CLASSTYPE_PRIMARY_BINFO (NODE) != NULL_TREE)
1356 /* If non-NULL, this is the binfo for the primary base class, i.e.,
1357 the base class which contains the virtual function table pointer
1359 #define CLASSTYPE_PRIMARY_BINFO(NODE) \
1360 (LANG_TYPE_CLASS_CHECK (NODE)->primary_base)
1362 /* A vector of BINFOs for the direct and indirect virtual base classes
1363 that this type uses in a post-order depth-first left-to-right
1364 order. (In other words, these bases appear in the order that they
1365 should be initialized.) */
1366 #define CLASSTYPE_VBASECLASSES(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->vbases)
1368 /* The type corresponding to NODE when NODE is used as a base class,
1369 i.e., NODE without virtual base classes. */
1371 #define CLASSTYPE_AS_BASE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->as_base)
1373 /* True iff NODE is the CLASSTYPE_AS_BASE version of some type. */
1375 #define IS_FAKE_BASE_TYPE(NODE) \
1376 (TREE_CODE (NODE) == RECORD_TYPE \
1377 && TYPE_CONTEXT (NODE) && CLASS_TYPE_P (TYPE_CONTEXT (NODE)) \
1378 && CLASSTYPE_AS_BASE (TYPE_CONTEXT (NODE)) == (NODE))
1380 /* These are the size and alignment of the type without its virtual
1381 base classes, for when we use this type as a base itself. */
1382 #define CLASSTYPE_SIZE(NODE) TYPE_SIZE (CLASSTYPE_AS_BASE (NODE))
1383 #define CLASSTYPE_SIZE_UNIT(NODE) TYPE_SIZE_UNIT (CLASSTYPE_AS_BASE (NODE))
1384 #define CLASSTYPE_ALIGN(NODE) TYPE_ALIGN (CLASSTYPE_AS_BASE (NODE))
1385 #define CLASSTYPE_USER_ALIGN(NODE) TYPE_USER_ALIGN (CLASSTYPE_AS_BASE (NODE))
1387 /* The alignment of NODE, without its virtual bases, in bytes. */
1388 #define CLASSTYPE_ALIGN_UNIT(NODE) \
1389 (CLASSTYPE_ALIGN (NODE) / BITS_PER_UNIT)
1391 /* True if this a Java interface type, declared with
1392 '__attribute__ ((java_interface))'. */
1393 #define TYPE_JAVA_INTERFACE(NODE) \
1394 (LANG_TYPE_CLASS_CHECK (NODE)->java_interface)
1396 /* A VEC(tree) of virtual functions which cannot be inherited by
1397 derived classes. When deriving from this type, the derived
1398 class must provide its own definition for each of these functions. */
1399 #define CLASSTYPE_PURE_VIRTUALS(NODE) \
1400 (LANG_TYPE_CLASS_CHECK (NODE)->pure_virtuals)
1402 /* Nonzero means that this type has an X() constructor. */
1403 #define TYPE_HAS_DEFAULT_CONSTRUCTOR(NODE) \
1404 (LANG_TYPE_CLASS_CHECK (NODE)->h.has_default_ctor)
1406 /* Nonzero means that this type contains a mutable member. */
1407 #define CLASSTYPE_HAS_MUTABLE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_mutable)
1408 #define TYPE_HAS_MUTABLE_P(NODE) (cp_has_mutable_p (NODE))
1410 /* Nonzero means that this class type is a non-POD class. */
1411 #define CLASSTYPE_NON_POD_P(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->non_pod_class)
1413 /* Nonzero means that this class contains pod types whose default
1414 initialization is not a zero initialization (namely, pointers to
1416 #define CLASSTYPE_NON_ZERO_INIT_P(NODE) \
1417 (LANG_TYPE_CLASS_CHECK (NODE)->non_zero_init)
1419 /* Nonzero if this class is "empty" in the sense of the C++ ABI. */
1420 #define CLASSTYPE_EMPTY_P(NODE) \
1421 (LANG_TYPE_CLASS_CHECK (NODE)->empty_p)
1423 /* Nonzero if this class is "nearly empty", i.e., contains only a
1424 virtual function table pointer. */
1425 #define CLASSTYPE_NEARLY_EMPTY_P(NODE) \
1426 (LANG_TYPE_CLASS_CHECK (NODE)->nearly_empty_p)
1428 /* Nonzero if this class contains an empty subobject. */
1429 #define CLASSTYPE_CONTAINS_EMPTY_CLASS_P(NODE) \
1430 (LANG_TYPE_CLASS_CHECK (NODE)->contains_empty_class_p)
1432 /* A list of class types of which this type is a friend. The
1433 TREE_VALUE is normally a TYPE, but will be a TEMPLATE_DECL in the
1434 case of a template friend. */
1435 #define CLASSTYPE_FRIEND_CLASSES(NODE) \
1436 (LANG_TYPE_CLASS_CHECK (NODE)->friend_classes)
1438 /* A list of the classes which grant friendship to this class. */
1439 #define CLASSTYPE_BEFRIENDING_CLASSES(NODE) \
1440 (LANG_TYPE_CLASS_CHECK (NODE)->befriending_classes)
1442 /* Say whether this node was declared as a "class" or a "struct". */
1443 #define CLASSTYPE_DECLARED_CLASS(NODE) \
1444 (LANG_TYPE_CLASS_CHECK (NODE)->declared_class)
1446 /* Nonzero if this class has const members
1447 which have no specified initialization. */
1448 #define CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE) \
1449 (TYPE_LANG_SPECIFIC (NODE) \
1450 ? LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init : 0)
1451 #define SET_CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE, VALUE) \
1452 (LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init = (VALUE))
1454 /* Nonzero if this class has ref members
1455 which have no specified initialization. */
1456 #define CLASSTYPE_REF_FIELDS_NEED_INIT(NODE) \
1457 (TYPE_LANG_SPECIFIC (NODE) \
1458 ? LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init : 0)
1459 #define SET_CLASSTYPE_REF_FIELDS_NEED_INIT(NODE, VALUE) \
1460 (LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init = (VALUE))
1462 /* Nonzero if this class is included from a header file which employs
1463 `#pragma interface', and it is not included in its implementation file. */
1464 #define CLASSTYPE_INTERFACE_ONLY(NODE) \
1465 (LANG_TYPE_CLASS_CHECK (NODE)->interface_only)
1467 /* True if we have already determined whether or not vtables, VTTs,
1468 typeinfo, and other similar per-class data should be emitted in
1469 this translation unit. This flag does not indicate whether or not
1470 these items should be emitted; it only indicates that we know one
1471 way or the other. */
1472 #define CLASSTYPE_INTERFACE_KNOWN(NODE) \
1473 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown == 0)
1474 /* The opposite of CLASSTYPE_INTERFACE_KNOWN. */
1475 #define CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1476 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown)
1478 #define SET_CLASSTYPE_INTERFACE_UNKNOWN_X(NODE,X) \
1479 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = !!(X))
1480 #define SET_CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
1481 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 1)
1482 #define SET_CLASSTYPE_INTERFACE_KNOWN(NODE) \
1483 (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 0)
1485 /* Nonzero if a _DECL node requires us to output debug info for this class. */
1486 #define CLASSTYPE_DEBUG_REQUESTED(NODE) \
1487 (LANG_TYPE_CLASS_CHECK (NODE)->debug_requested)
1489 /* Additional macros for inheritance information. */
1491 /* Nonzero means that this class is on a path leading to a new vtable. */
1492 #define BINFO_VTABLE_PATH_MARKED(NODE) BINFO_FLAG_1 (NODE)
1494 /* Nonzero means B (a BINFO) has its own vtable. Any copies will not
1495 have this flag set. */
1496 #define BINFO_NEW_VTABLE_MARKED(B) (BINFO_FLAG_2 (B))
1498 /* Compare a BINFO_TYPE with another type for equality. For a binfo,
1499 this is functionally equivalent to using same_type_p, but
1500 measurably faster. At least one of the arguments must be a
1501 BINFO_TYPE. The other can be a BINFO_TYPE or a regular type. If
1502 BINFO_TYPE(T) ever stops being the main variant of the class the
1503 binfo is for, this macro must change. */
1504 #define SAME_BINFO_TYPE_P(A, B) ((A) == (B))
1506 /* Any subobject that needs a new vtable must have a vptr and must not
1507 be a non-virtual primary base (since it would then use the vtable from a
1508 derived class and never become non-primary.) */
1509 #define SET_BINFO_NEW_VTABLE_MARKED(B) \
1510 (BINFO_NEW_VTABLE_MARKED (B) = 1, \
1511 gcc_assert (!BINFO_PRIMARY_P (B) || BINFO_VIRTUAL_P (B)), \
1512 gcc_assert (TYPE_VFIELD (BINFO_TYPE (B))))
1514 /* Nonzero if this binfo is for a dependent base - one that should not
1516 #define BINFO_DEPENDENT_BASE_P(NODE) BINFO_FLAG_3 (NODE)
1518 /* Nonzero if this binfo has lost its primary base binfo (because that
1519 is a nearly-empty virtual base that has been taken by some other
1520 base in the complete hierarchy. */
1521 #define BINFO_LOST_PRIMARY_P(NODE) BINFO_FLAG_4 (NODE)
1523 /* Nonzero if this BINFO is a primary base class. */
1524 #define BINFO_PRIMARY_P(NODE) BINFO_FLAG_5(NODE)
1526 /* Used by various search routines. */
1527 #define IDENTIFIER_MARKED(NODE) TREE_LANG_FLAG_0 (NODE)
1529 /* A VEC(tree_pair_s) of the vcall indices associated with the class
1530 NODE. The PURPOSE of each element is a FUNCTION_DECL for a virtual
1531 function. The VALUE is the index into the virtual table where the
1532 vcall offset for that function is stored, when NODE is a virtual
1534 #define CLASSTYPE_VCALL_INDICES(NODE) \
1535 (LANG_TYPE_CLASS_CHECK (NODE)->vcall_indices)
1537 /* The various vtables for the class NODE. The primary vtable will be
1538 first, followed by the construction vtables and VTT, if any. */
1539 #define CLASSTYPE_VTABLES(NODE) \
1540 (LANG_TYPE_CLASS_CHECK (NODE)->vtables)
1542 /* The std::type_info variable representing this class, or NULL if no
1543 such variable has been created. This field is only set for the
1544 TYPE_MAIN_VARIANT of the class. */
1545 #define CLASSTYPE_TYPEINFO_VAR(NODE) \
1546 (LANG_TYPE_CLASS_CHECK (NODE)->typeinfo_var)
1548 /* Accessor macros for the BINFO_VIRTUALS list. */
1550 /* The number of bytes by which to adjust the `this' pointer when
1551 calling this virtual function. Subtract this value from the this
1552 pointer. Always non-NULL, might be constant zero though. */
1553 #define BV_DELTA(NODE) (TREE_PURPOSE (NODE))
1555 /* If non-NULL, the vtable index at which to find the vcall offset
1556 when calling this virtual function. Add the value at that vtable
1557 index to the this pointer. */
1558 #define BV_VCALL_INDEX(NODE) (TREE_TYPE (NODE))
1560 /* The function to call. */
1561 #define BV_FN(NODE) (TREE_VALUE (NODE))
1564 /* For FUNCTION_TYPE or METHOD_TYPE, a list of the exceptions that
1565 this type can raise. Each TREE_VALUE is a _TYPE. The TREE_VALUE
1566 will be NULL_TREE to indicate a throw specification of `()', or
1567 no exceptions allowed. */
1568 #define TYPE_RAISES_EXCEPTIONS(NODE) TYPE_LANG_SLOT_1 (NODE)
1570 /* For FUNCTION_TYPE or METHOD_TYPE, return 1 iff it is declared `throw()'. */
1571 #define TYPE_NOTHROW_P(NODE) \
1572 (TYPE_RAISES_EXCEPTIONS (NODE) \
1573 && TREE_VALUE (TYPE_RAISES_EXCEPTIONS (NODE)) == NULL_TREE)
1575 /* The binding level associated with the namespace. */
1576 #define NAMESPACE_LEVEL(NODE) \
1577 (DECL_LANG_SPECIFIC (NODE)->decl_flags.u.level)
1580 /* If a DECL has DECL_LANG_SPECIFIC, it is either a lang_decl_flags or
1581 a lang_decl (which has lang_decl_flags as its initial prefix).
1582 This macro is nonzero for tree nodes whose DECL_LANG_SPECIFIC is
1583 the full lang_decl, and not just lang_decl_flags. Keep these
1584 checks in ascending code order. */
1585 #define CAN_HAVE_FULL_LANG_DECL_P(NODE) \
1586 (!(TREE_CODE (NODE) == FIELD_DECL \
1587 || TREE_CODE (NODE) == VAR_DECL \
1588 || TREE_CODE (NODE) == CONST_DECL \
1589 || TREE_CODE (NODE) == USING_DECL))
1591 struct lang_decl_flags GTY(())
1593 ENUM_BITFIELD(languages) language : 4;
1594 unsigned global_ctor_p : 1;
1595 unsigned global_dtor_p : 1;
1596 unsigned anticipated_p : 1;
1597 unsigned template_conv_p : 1;
1599 unsigned operator_attr : 1;
1600 unsigned constructor_attr : 1;
1601 unsigned destructor_attr : 1;
1602 unsigned friend_attr : 1;
1603 unsigned static_function : 1;
1604 unsigned pure_virtual : 1;
1605 unsigned has_in_charge_parm_p : 1;
1606 unsigned has_vtt_parm_p : 1;
1608 unsigned deferred : 1;
1609 unsigned use_template : 2;
1610 unsigned nonconverting : 1;
1611 unsigned not_really_extern : 1;
1612 unsigned initialized_in_class : 1;
1613 unsigned assignment_operator_p : 1;
1617 unsigned can_be_full : 1;
1618 unsigned thunk_p : 1;
1619 unsigned this_thunk_p : 1;
1620 unsigned repo_available_p : 1;
1621 unsigned hidden_friend_p : 1;
1622 unsigned threadprivate_p : 1;
1623 /* One unused bit. */
1626 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
1628 In a FUNCTION_DECL for which DECL_THUNK_P does not hold,
1629 VAR_DECL, TYPE_DECL, or TEMPLATE_DECL, this is
1630 DECL_TEMPLATE_INFO. */
1631 tree GTY ((tag ("0"))) template_info;
1633 /* In a NAMESPACE_DECL, this is NAMESPACE_LEVEL. */
1634 struct cp_binding_level * GTY ((tag ("1"))) level;
1635 } GTY ((desc ("%1.u1sel"))) u;
1637 union lang_decl_u2 {
1638 /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
1639 THUNK_VIRTUAL_OFFSET.
1640 Otherwise this is DECL_ACCESS. */
1641 tree GTY ((tag ("0"))) access;
1643 /* For VAR_DECL in function, this is DECL_DISCRIMINATOR. */
1644 int GTY ((tag ("1"))) discriminator;
1645 } GTY ((desc ("%1.u2sel"))) u2;
1648 /* sorted_fields is sorted based on a pointer, so we need to be able
1649 to resort it if pointers get rearranged. */
1651 struct lang_decl GTY(())
1653 struct lang_decl_flags decl_flags;
1657 struct full_lang_decl
1659 /* In an overloaded operator, this is the value of
1660 DECL_OVERLOADED_OPERATOR_P. */
1661 ENUM_BITFIELD (tree_code) operator_code : 8;
1664 unsigned pending_inline_p : 1;
1665 unsigned spare : 22;
1667 /* For a non-thunk function decl, this is a tree list of
1668 friendly classes. For a thunk function decl, it is the
1669 thunked to function decl. */
1670 tree befriending_classes;
1672 /* For a non-virtual FUNCTION_DECL, this is
1673 DECL_FRIEND_CONTEXT. For a virtual FUNCTION_DECL for which
1674 DECL_THIS_THUNK_P does not hold, this is DECL_THUNKS. Both
1675 this pointer and result pointer adjusting thunks are
1676 chained here. This pointer thunks to return pointer thunks
1677 will be chained on the return pointer thunk. */
1682 /* In a non-thunk FUNCTION_DECL or TEMPLATE_DECL, this is
1683 DECL_CLONED_FUNCTION. */
1684 tree GTY ((tag ("0"))) cloned_function;
1686 /* In a FUNCTION_DECL for which THUNK_P holds this is the
1687 THUNK_FIXED_OFFSET. */
1688 HOST_WIDE_INT GTY ((tag ("1"))) fixed_offset;
1689 } GTY ((desc ("%0.decl_flags.thunk_p"))) u5;
1693 struct sorted_fields_type * GTY ((tag ("0"), reorder ("resort_sorted_fields")))
1695 struct cp_token_cache * GTY ((tag ("2"))) pending_inline_info;
1696 struct language_function * GTY ((tag ("1")))
1697 saved_language_function;
1698 } GTY ((desc ("%1.u3sel + %1.pending_inline_p"))) u;
1699 } GTY ((tag ("1"))) f;
1700 } GTY ((desc ("%1.decl_flags.can_be_full"))) u;
1703 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
1705 #define LANG_DECL_U2_CHECK(NODE, TF) __extension__ \
1706 ({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
1707 if (lt->decl_flags.u2sel != TF) \
1708 lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
1709 <->decl_flags.u2; })
1713 #define LANG_DECL_U2_CHECK(NODE, TF) \
1714 (&DECL_LANG_SPECIFIC (NODE)->decl_flags.u2)
1716 #endif /* ENABLE_TREE_CHECKING */
1718 /* For a FUNCTION_DECL or a VAR_DECL, the language linkage for the
1719 declaration. Some entities (like a member function in a local
1720 class, or a local variable) do not have linkage at all, and this
1721 macro should not be used in those cases.
1723 Implementation note: A FUNCTION_DECL without DECL_LANG_SPECIFIC was
1724 created by language-independent code, and has C linkage. Most
1725 VAR_DECLs have C++ linkage, and do not have DECL_LANG_SPECIFIC, but
1726 we do create DECL_LANG_SPECIFIC for variables with non-C++ linkage. */
1727 #define DECL_LANGUAGE(NODE) \
1728 (DECL_LANG_SPECIFIC (NODE) \
1729 ? DECL_LANG_SPECIFIC (NODE)->decl_flags.language \
1730 : (TREE_CODE (NODE) == FUNCTION_DECL \
1731 ? lang_c : lang_cplusplus))
1733 /* Set the language linkage for NODE to LANGUAGE. */
1734 #define SET_DECL_LANGUAGE(NODE, LANGUAGE) \
1735 (DECL_LANG_SPECIFIC (NODE)->decl_flags.language = (LANGUAGE))
1737 /* For FUNCTION_DECLs: nonzero means that this function is a constructor. */
1738 #define DECL_CONSTRUCTOR_P(NODE) \
1739 (DECL_LANG_SPECIFIC (NODE)->decl_flags.constructor_attr)
1741 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a complete
1743 #define DECL_COMPLETE_CONSTRUCTOR_P(NODE) \
1744 (DECL_CONSTRUCTOR_P (NODE) \
1745 && DECL_NAME (NODE) == complete_ctor_identifier)
1747 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a base
1749 #define DECL_BASE_CONSTRUCTOR_P(NODE) \
1750 (DECL_CONSTRUCTOR_P (NODE) \
1751 && DECL_NAME (NODE) == base_ctor_identifier)
1753 /* Nonzero if NODE (a FUNCTION_DECL) is a constructor, but not either the
1754 specialized in-charge constructor or the specialized not-in-charge
1756 #define DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P(NODE) \
1757 (DECL_CONSTRUCTOR_P (NODE) && !DECL_CLONED_FUNCTION_P (NODE))
1759 /* Nonzero if NODE (a FUNCTION_DECL) is a copy constructor. */
1760 #define DECL_COPY_CONSTRUCTOR_P(NODE) \
1761 (DECL_CONSTRUCTOR_P (NODE) && copy_fn_p (NODE) > 0)
1763 /* Nonzero if NODE (a FUNCTION_DECL) is a move constructor. */
1764 #define DECL_MOVE_CONSTRUCTOR_P(NODE) \
1765 (DECL_CONSTRUCTOR_P (NODE) && move_fn_p (NODE))
1767 /* Nonzero if NODE is a destructor. */
1768 #define DECL_DESTRUCTOR_P(NODE) \
1769 (DECL_LANG_SPECIFIC (NODE)->decl_flags.destructor_attr)
1771 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor, but not the
1772 specialized in-charge constructor, in-charge deleting constructor,
1773 or the base destructor. */
1774 #define DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P(NODE) \
1775 (DECL_DESTRUCTOR_P (NODE) && !DECL_CLONED_FUNCTION_P (NODE))
1777 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
1779 #define DECL_COMPLETE_DESTRUCTOR_P(NODE) \
1780 (DECL_DESTRUCTOR_P (NODE) \
1781 && DECL_NAME (NODE) == complete_dtor_identifier)
1783 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a base
1785 #define DECL_BASE_DESTRUCTOR_P(NODE) \
1786 (DECL_DESTRUCTOR_P (NODE) \
1787 && DECL_NAME (NODE) == base_dtor_identifier)
1789 /* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
1790 object that deletes the object after it has been destroyed. */
1791 #define DECL_DELETING_DESTRUCTOR_P(NODE) \
1792 (DECL_DESTRUCTOR_P (NODE) \
1793 && DECL_NAME (NODE) == deleting_dtor_identifier)
1795 /* Nonzero if NODE (a FUNCTION_DECL) is a cloned constructor or
1797 #define DECL_CLONED_FUNCTION_P(NODE) \
1798 ((TREE_CODE (NODE) == FUNCTION_DECL \
1799 || TREE_CODE (NODE) == TEMPLATE_DECL) \
1800 && DECL_LANG_SPECIFIC (NODE) \
1801 && !DECL_LANG_SPECIFIC (NODE)->decl_flags.thunk_p \
1802 && DECL_CLONED_FUNCTION (NODE) != NULL_TREE)
1804 /* If DECL_CLONED_FUNCTION_P holds, this is the function that was
1806 #define DECL_CLONED_FUNCTION(NODE) \
1807 (DECL_LANG_SPECIFIC (NON_THUNK_FUNCTION_CHECK(NODE))->u.f.u5.cloned_function)
1809 /* Perform an action for each clone of FN, if FN is a function with
1810 clones. This macro should be used like:
1812 FOR_EACH_CLONE (clone, fn)
1816 #define FOR_EACH_CLONE(CLONE, FN) \
1817 if (TREE_CODE (FN) == FUNCTION_DECL \
1818 && (DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (FN) \
1819 || DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (FN))) \
1820 for (CLONE = TREE_CHAIN (FN); \
1821 CLONE && DECL_CLONED_FUNCTION_P (CLONE); \
1822 CLONE = TREE_CHAIN (CLONE))
1824 /* Nonzero if NODE has DECL_DISCRIMINATOR and not DECL_ACCESS. */
1825 #define DECL_DISCRIMINATOR_P(NODE) \
1826 (TREE_CODE (NODE) == VAR_DECL \
1827 && DECL_FUNCTION_SCOPE_P (NODE))
1829 /* Discriminator for name mangling. */
1830 #define DECL_DISCRIMINATOR(NODE) (LANG_DECL_U2_CHECK (NODE, 1)->discriminator)
1832 /* Nonzero if the VTT parm has been added to NODE. */
1833 #define DECL_HAS_VTT_PARM_P(NODE) \
1834 (DECL_LANG_SPECIFIC (NODE)->decl_flags.has_vtt_parm_p)
1836 /* Nonzero if NODE is a FUNCTION_DECL for which a VTT parameter is
1838 #define DECL_NEEDS_VTT_PARM_P(NODE) \
1839 (CLASSTYPE_VBASECLASSES (DECL_CONTEXT (NODE)) \
1840 && (DECL_BASE_CONSTRUCTOR_P (NODE) \
1841 || DECL_BASE_DESTRUCTOR_P (NODE)))
1843 /* Nonzero if NODE is a user-defined conversion operator. */
1844 #define DECL_CONV_FN_P(NODE) \
1845 (DECL_NAME (NODE) && IDENTIFIER_TYPENAME_P (DECL_NAME (NODE)))
1847 /* If FN is a conversion operator, the type to which it converts.
1848 Otherwise, NULL_TREE. */
1849 #define DECL_CONV_FN_TYPE(FN) \
1850 (DECL_CONV_FN_P (FN) ? TREE_TYPE (DECL_NAME (FN)) : NULL_TREE)
1852 /* Nonzero if NODE, which is a TEMPLATE_DECL, is a template
1853 conversion operator to a type dependent on the innermost template
1855 #define DECL_TEMPLATE_CONV_FN_P(NODE) \
1856 (DECL_LANG_SPECIFIC (NODE)->decl_flags.template_conv_p)
1858 /* Set the overloaded operator code for NODE to CODE. */
1859 #define SET_OVERLOADED_OPERATOR_CODE(NODE, CODE) \
1860 (DECL_LANG_SPECIFIC (NODE)->u.f.operator_code = (CODE))
1862 /* If NODE is an overloaded operator, then this returns the TREE_CODE
1863 associated with the overloaded operator.
1864 DECL_ASSIGNMENT_OPERATOR_P must also be checked to determine
1865 whether or not NODE is an assignment operator. If NODE is not an
1866 overloaded operator, ERROR_MARK is returned. Since the numerical
1867 value of ERROR_MARK is zero, this macro can be used as a predicate
1868 to test whether or not NODE is an overloaded operator. */
1869 #define DECL_OVERLOADED_OPERATOR_P(NODE) \
1870 (IDENTIFIER_OPNAME_P (DECL_NAME (NODE)) \
1871 ? DECL_LANG_SPECIFIC (NODE)->u.f.operator_code : ERROR_MARK)
1873 /* Nonzero if NODE is an assignment operator. */
1874 #define DECL_ASSIGNMENT_OPERATOR_P(NODE) \
1875 (DECL_LANG_SPECIFIC (NODE)->decl_flags.assignment_operator_p)
1877 /* For FUNCTION_DECLs: nonzero means that this function is a
1878 constructor or a destructor with an extra in-charge parameter to
1879 control whether or not virtual bases are constructed. */
1880 #define DECL_HAS_IN_CHARGE_PARM_P(NODE) \
1881 (DECL_LANG_SPECIFIC (NODE)->decl_flags.has_in_charge_parm_p)
1883 /* Nonzero if DECL is a declaration of __builtin_constant_p. */
1884 #define DECL_IS_BUILTIN_CONSTANT_P(NODE) \
1885 (TREE_CODE (NODE) == FUNCTION_DECL \
1886 && DECL_BUILT_IN_CLASS (NODE) == BUILT_IN_NORMAL \
1887 && DECL_FUNCTION_CODE (NODE) == BUILT_IN_CONSTANT_P)
1889 /* Nonzero for _DECL means that this decl appears in (or will appear
1890 in) as a member in a RECORD_TYPE or UNION_TYPE node. It is also for
1891 detecting circularity in case members are multiply defined. In the
1892 case of a VAR_DECL, it is also used to determine how program storage
1893 should be allocated. */
1894 #define DECL_IN_AGGR_P(NODE) (DECL_LANG_FLAG_3 (NODE))
1896 /* Nonzero for a VAR_DECL means that the variable's initialization (if
1897 any) has been processed. (In general, DECL_INITIALIZED_P is
1898 !DECL_EXTERN, but static data members may be initialized even if
1900 #define DECL_INITIALIZED_P(NODE) \
1901 (TREE_LANG_FLAG_1 (VAR_DECL_CHECK (NODE)))
1903 /* Nonzero for a VAR_DECL iff an explicit initializer was provided. */
1904 #define DECL_NONTRIVIALLY_INITIALIZED_P(NODE) \
1905 (TREE_LANG_FLAG_3 (VAR_DECL_CHECK (NODE)))
1907 /* Nonzero for a VAR_DECL that was initialized with a
1908 constant-expression. */
1909 #define DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P(NODE) \
1910 (TREE_LANG_FLAG_2 (VAR_DECL_CHECK (NODE)))
1912 /* Nonzero for a VAR_DECL that can be used in an integral constant
1917 An integral constant-expression can only involve ... const
1918 variables of static or enumeration types initialized with
1919 constant expressions ...
1921 The standard does not require that the expression be non-volatile.
1922 G++ implements the proposed correction in DR 457. */
1923 #define DECL_INTEGRAL_CONSTANT_VAR_P(NODE) \
1924 (TREE_CODE (NODE) == VAR_DECL \
1925 && CP_TYPE_CONST_NON_VOLATILE_P (TREE_TYPE (NODE)) \
1926 && INTEGRAL_OR_ENUMERATION_TYPE_P (TREE_TYPE (NODE)) \
1927 && DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (NODE))
1929 /* Nonzero if the DECL was initialized in the class definition itself,
1930 rather than outside the class. This is used for both static member
1931 VAR_DECLS, and FUNTION_DECLS that are defined in the class. */
1932 #define DECL_INITIALIZED_IN_CLASS_P(DECL) \
1933 (DECL_LANG_SPECIFIC (DECL)->decl_flags.initialized_in_class)
1935 /* Nonzero for DECL means that this decl is just a friend declaration,
1936 and should not be added to the list of members for this class. */
1937 #define DECL_FRIEND_P(NODE) (DECL_LANG_SPECIFIC (NODE)->decl_flags.friend_attr)
1939 /* A TREE_LIST of the types which have befriended this FUNCTION_DECL. */
1940 #define DECL_BEFRIENDING_CLASSES(NODE) \
1941 (DECL_LANG_SPECIFIC (NODE)->u.f.befriending_classes)
1943 /* Nonzero for FUNCTION_DECL means that this decl is a static
1945 #define DECL_STATIC_FUNCTION_P(NODE) \
1946 (DECL_LANG_SPECIFIC (NODE)->decl_flags.static_function)
1948 /* Nonzero for FUNCTION_DECL means that this decl is a non-static
1950 #define DECL_NONSTATIC_MEMBER_FUNCTION_P(NODE) \
1951 (TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE)
1953 /* Nonzero for FUNCTION_DECL means that this decl is a member function
1954 (static or non-static). */
1955 #define DECL_FUNCTION_MEMBER_P(NODE) \
1956 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) || DECL_STATIC_FUNCTION_P (NODE))
1958 /* Nonzero for FUNCTION_DECL means that this member function
1959 has `this' as const X *const. */
1960 #define DECL_CONST_MEMFUNC_P(NODE) \
1961 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
1962 && CP_TYPE_CONST_P (TREE_TYPE (TREE_VALUE \
1963 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
1965 /* Nonzero for FUNCTION_DECL means that this member function
1966 has `this' as volatile X *const. */
1967 #define DECL_VOLATILE_MEMFUNC_P(NODE) \
1968 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
1969 && CP_TYPE_VOLATILE_P (TREE_TYPE (TREE_VALUE \
1970 (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
1972 /* Nonzero for a DECL means that this member is a non-static member. */
1973 #define DECL_NONSTATIC_MEMBER_P(NODE) \
1974 ((TREE_CODE (NODE) == FUNCTION_DECL \
1975 && DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE)) \
1976 || TREE_CODE (NODE) == FIELD_DECL)
1978 /* Nonzero for _DECL means that this member object type
1980 #define DECL_MUTABLE_P(NODE) (DECL_LANG_FLAG_0 (NODE))
1982 /* Nonzero for _DECL means that this constructor is a non-converting
1984 #define DECL_NONCONVERTING_P(NODE) \
1985 (DECL_LANG_SPECIFIC (NODE)->decl_flags.nonconverting)
1987 /* Nonzero for FUNCTION_DECL means that this member function is a pure
1988 virtual function. */
1989 #define DECL_PURE_VIRTUAL_P(NODE) \
1990 (DECL_LANG_SPECIFIC (NODE)->decl_flags.pure_virtual)
1992 /* True (in a FUNCTION_DECL) if NODE is a virtual function that is an
1993 invalid overrider for a function from a base class. Once we have
1994 complained about an invalid overrider we avoid complaining about it
1996 #define DECL_INVALID_OVERRIDER_P(NODE) \
1997 (DECL_LANG_FLAG_4 (NODE))
1999 /* The thunks associated with NODE, a FUNCTION_DECL. */
2000 #define DECL_THUNKS(NODE) \
2001 (DECL_LANG_SPECIFIC (NODE)->u.f.context)
2003 /* Nonzero if NODE is a thunk, rather than an ordinary function. */
2004 #define DECL_THUNK_P(NODE) \
2005 (TREE_CODE (NODE) == FUNCTION_DECL \
2006 && DECL_LANG_SPECIFIC (NODE) \
2007 && DECL_LANG_SPECIFIC (NODE)->decl_flags.thunk_p)
2009 /* Set DECL_THUNK_P for node. */
2010 #define SET_DECL_THUNK_P(NODE, THIS_ADJUSTING) \
2011 (DECL_LANG_SPECIFIC (NODE)->decl_flags.thunk_p = 1, \
2012 DECL_LANG_SPECIFIC (NODE)->u.f.u3sel = 1, \
2013 DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p = (THIS_ADJUSTING))
2015 /* Nonzero if NODE is a this pointer adjusting thunk. */
2016 #define DECL_THIS_THUNK_P(NODE) \
2017 (DECL_THUNK_P (NODE) && DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p)
2019 /* Nonzero if NODE is a result pointer adjusting thunk. */
2020 #define DECL_RESULT_THUNK_P(NODE) \
2021 (DECL_THUNK_P (NODE) && !DECL_LANG_SPECIFIC (NODE)->decl_flags.this_thunk_p)
2023 /* Nonzero if NODE is a FUNCTION_DECL, but not a thunk. */
2024 #define DECL_NON_THUNK_FUNCTION_P(NODE) \
2025 (TREE_CODE (NODE) == FUNCTION_DECL && !DECL_THUNK_P (NODE))
2027 /* Nonzero if NODE is `extern "C"'. */
2028 #define DECL_EXTERN_C_P(NODE) \
2029 (DECL_LANGUAGE (NODE) == lang_c)
2031 /* Nonzero if NODE is an `extern "C"' function. */
2032 #define DECL_EXTERN_C_FUNCTION_P(NODE) \
2033 (DECL_NON_THUNK_FUNCTION_P (NODE) && DECL_EXTERN_C_P (NODE))
2035 /* True iff DECL is an entity with vague linkage whose definition is
2036 available in this translation unit. */
2037 #define DECL_REPO_AVAILABLE_P(NODE) \
2038 (DECL_LANG_SPECIFIC (NODE)->decl_flags.repo_available_p)
2040 /* Nonzero if this DECL is the __PRETTY_FUNCTION__ variable in a
2041 template function. */
2042 #define DECL_PRETTY_FUNCTION_P(NODE) \
2043 (TREE_LANG_FLAG_0 (VAR_DECL_CHECK (NODE)))
2045 /* The _TYPE context in which this _DECL appears. This field holds the
2046 class where a virtual function instance is actually defined. */
2047 #define DECL_CLASS_CONTEXT(NODE) \
2048 (DECL_CLASS_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : NULL_TREE)
2050 /* For a non-member friend function, the class (if any) in which this
2051 friend was defined. For example, given:
2053 struct S { friend void f (); };
2055 the DECL_FRIEND_CONTEXT for `f' will be `S'. */
2056 #define DECL_FRIEND_CONTEXT(NODE) \
2057 ((DECL_FRIEND_P (NODE) && !DECL_FUNCTION_MEMBER_P (NODE)) \
2058 ? DECL_LANG_SPECIFIC (NODE)->u.f.context \
2061 /* Set the DECL_FRIEND_CONTEXT for NODE to CONTEXT. */
2062 #define SET_DECL_FRIEND_CONTEXT(NODE, CONTEXT) \
2063 (DECL_LANG_SPECIFIC (NODE)->u.f.context = (CONTEXT))
2065 /* NULL_TREE in DECL_CONTEXT represents the global namespace. */
2066 #define CP_DECL_CONTEXT(NODE) \
2067 (DECL_CONTEXT (NODE) ? DECL_CONTEXT (NODE) : global_namespace)
2068 #define CP_TYPE_CONTEXT(NODE) \
2069 (TYPE_CONTEXT (NODE) ? TYPE_CONTEXT (NODE) : global_namespace)
2070 #define FROB_CONTEXT(NODE) ((NODE) == global_namespace ? NULL_TREE : (NODE))
2072 /* 1 iff NODE has namespace scope, including the global namespace. */
2073 #define DECL_NAMESPACE_SCOPE_P(NODE) \
2074 (!DECL_TEMPLATE_PARM_P (NODE) \
2075 && TREE_CODE (CP_DECL_CONTEXT (NODE)) == NAMESPACE_DECL)
2077 /* 1 iff NODE is a class member. */
2078 #define DECL_CLASS_SCOPE_P(NODE) \
2079 (DECL_CONTEXT (NODE) && TYPE_P (DECL_CONTEXT (NODE)))
2081 #define TYPE_CLASS_SCOPE_P(NODE) \
2082 (TYPE_CONTEXT (NODE) && TYPE_P (TYPE_CONTEXT (NODE)))
2084 /* 1 iff NODE is function-local. */
2085 #define DECL_FUNCTION_SCOPE_P(NODE) \
2086 (DECL_CONTEXT (NODE) \
2087 && TREE_CODE (DECL_CONTEXT (NODE)) == FUNCTION_DECL)
2089 /* 1 iff VAR_DECL node NODE is a type-info decl. This flag is set for
2090 both the primary typeinfo object and the associated NTBS name. */
2091 #define DECL_TINFO_P(NODE) TREE_LANG_FLAG_4 (VAR_DECL_CHECK (NODE))
2093 /* 1 iff VAR_DECL node NODE is virtual table or VTT. */
2094 #define DECL_VTABLE_OR_VTT_P(NODE) TREE_LANG_FLAG_5 (VAR_DECL_CHECK (NODE))
2096 /* Returns 1 iff VAR_DECL is a construction virtual table.
2097 DECL_VTABLE_OR_VTT_P will be true in this case and must be checked
2098 before using this macro. */
2099 #define DECL_CONSTRUCTION_VTABLE_P(NODE) \
2100 TREE_LANG_FLAG_6 (VAR_DECL_CHECK (NODE))
2102 /* 1 iff NODE is function-local, but for types. */
2103 #define LOCAL_CLASS_P(NODE) \
2104 (decl_function_context (TYPE_MAIN_DECL (NODE)) != NULL_TREE)
2106 /* For a NAMESPACE_DECL: the list of using namespace directives
2107 The PURPOSE is the used namespace, the value is the namespace
2108 that is the common ancestor. */
2109 #define DECL_NAMESPACE_USING(NODE) DECL_VINDEX (NAMESPACE_DECL_CHECK (NODE))
2111 /* In a NAMESPACE_DECL, the DECL_INITIAL is used to record all users
2112 of a namespace, to record the transitive closure of using namespace. */
2113 #define DECL_NAMESPACE_USERS(NODE) DECL_INITIAL (NAMESPACE_DECL_CHECK (NODE))
2115 /* In a NAMESPACE_DECL, the list of namespaces which have associated
2116 themselves with this one. */
2117 #define DECL_NAMESPACE_ASSOCIATIONS(NODE) \
2118 (NAMESPACE_DECL_CHECK (NODE)->decl_non_common.saved_tree)
2120 /* In a NAMESPACE_DECL, points to the original namespace if this is
2121 a namespace alias. */
2122 #define DECL_NAMESPACE_ALIAS(NODE) \
2123 DECL_ABSTRACT_ORIGIN (NAMESPACE_DECL_CHECK (NODE))
2124 #define ORIGINAL_NAMESPACE(NODE) \
2125 (DECL_NAMESPACE_ALIAS (NODE) ? DECL_NAMESPACE_ALIAS (NODE) : (NODE))
2127 /* Nonzero if NODE is the std namespace. */
2128 #define DECL_NAMESPACE_STD_P(NODE) \
2129 (TREE_CODE (NODE) == NAMESPACE_DECL \
2130 && CP_DECL_CONTEXT (NODE) == global_namespace \
2131 && DECL_NAME (NODE) == std_identifier)
2133 /* In a TREE_LIST concatenating using directives, indicate indirect
2135 #define TREE_INDIRECT_USING(NODE) (TREE_LIST_CHECK (NODE)->base.lang_flag_0)
2137 extern tree decl_shadowed_for_var_lookup (tree);
2138 extern void decl_shadowed_for_var_insert (tree, tree);
2140 /* Non zero if this is a using decl for a dependent scope. */
2141 #define DECL_DEPENDENT_P(NODE) DECL_LANG_FLAG_0 (USING_DECL_CHECK (NODE))
2143 /* The scope named in a using decl. */
2144 #define USING_DECL_SCOPE(NODE) TREE_TYPE (USING_DECL_CHECK (NODE))
2146 /* The decls named by a using decl. */
2147 #define USING_DECL_DECLS(NODE) DECL_INITIAL (USING_DECL_CHECK (NODE))
2149 /* In a VAR_DECL, true if we have a shadowed local variable
2150 in the shadowed var table for this VAR_DECL. */
2151 #define DECL_HAS_SHADOWED_FOR_VAR_P(NODE) \
2152 (VAR_DECL_CHECK (NODE)->decl_with_vis.shadowed_for_var_p)
2154 /* In a VAR_DECL for a variable declared in a for statement,
2155 this is the shadowed (local) variable. */
2156 #define DECL_SHADOWED_FOR_VAR(NODE) \
2157 (DECL_HAS_SHADOWED_FOR_VAR_P(NODE) ? decl_shadowed_for_var_lookup (NODE) : NULL)
2159 #define SET_DECL_SHADOWED_FOR_VAR(NODE, VAL) \
2160 (decl_shadowed_for_var_insert (NODE, VAL))
2162 /* In a FUNCTION_DECL, this is nonzero if this function was defined in
2163 the class definition. We have saved away the text of the function,
2164 but have not yet processed it. */
2165 #define DECL_PENDING_INLINE_P(NODE) \
2166 (DECL_LANG_SPECIFIC (NODE)->u.f.pending_inline_p)
2168 /* If DECL_PENDING_INLINE_P holds, this is the saved text of the
2170 #define DECL_PENDING_INLINE_INFO(NODE) \
2171 (DECL_LANG_SPECIFIC (NODE)->u.f.u.pending_inline_info)
2173 /* For a TYPE_DECL: if this structure has many fields, we'll sort them
2174 and put them into a TREE_VEC. */
2175 #define DECL_SORTED_FIELDS(NODE) \
2176 (DECL_LANG_SPECIFIC (TYPE_DECL_CHECK (NODE))->u.f.u.sorted_fields)
2178 /* True if on the deferred_fns (see decl2.c) list. */
2179 #define DECL_DEFERRED_FN(DECL) \
2180 (DECL_LANG_SPECIFIC (DECL)->decl_flags.deferred)
2182 /* If non-NULL for a VAR_DECL, FUNCTION_DECL, TYPE_DECL or
2183 TEMPLATE_DECL, the entity is either a template specialization (if
2184 DECL_USE_TEMPLATE is nonzero) or the abstract instance of the
2187 In either case, DECL_TEMPLATE_INFO is a TREE_LIST, whose
2188 TREE_PURPOSE is the TEMPLATE_DECL of which this entity is a
2189 specialization or abstract instance. The TREE_VALUE is the
2190 template arguments used to specialize the template.
2194 template <typename T> struct S { friend void f(T) {} };
2196 In this case, S<int>::f is, from the point of view of the compiler,
2197 an instantiation of a template -- but, from the point of view of
2198 the language, each instantiation of S results in a wholly unrelated
2199 global function f. In this case, DECL_TEMPLATE_INFO for S<int>::f
2200 will be non-NULL, but DECL_USE_TEMPLATE will be zero. */
2201 #define DECL_TEMPLATE_INFO(NODE) \
2202 (DECL_LANG_SPECIFIC (VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK (NODE)) \
2203 ->decl_flags.u.template_info)
2205 /* For a VAR_DECL, indicates that the variable is actually a
2206 non-static data member of anonymous union that has been promoted to
2208 #define DECL_ANON_UNION_VAR_P(NODE) \
2209 (DECL_LANG_FLAG_4 (VAR_DECL_CHECK (NODE)))
2211 /* Template information for a RECORD_TYPE or UNION_TYPE. */
2212 #define CLASSTYPE_TEMPLATE_INFO(NODE) \
2213 (LANG_TYPE_CLASS_CHECK (RECORD_OR_UNION_CHECK (NODE))->template_info)
2215 /* Template information for an ENUMERAL_TYPE. Although an enumeration may
2216 not be a primary template, it may be declared within the scope of a
2217 primary template and the enumeration constants may depend on
2218 non-type template parameters. */
2219 #define ENUM_TEMPLATE_INFO(NODE) \
2220 (TYPE_LANG_SLOT_1 (ENUMERAL_TYPE_CHECK (NODE)))
2222 /* Template information for a template template parameter. */
2223 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO(NODE) \
2224 (LANG_TYPE_CLASS_CHECK (BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK (NODE)) \
2227 /* Template information for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2228 #define TYPE_TEMPLATE_INFO(NODE) \
2229 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2230 ? ENUM_TEMPLATE_INFO (NODE) : \
2231 (TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM \
2232 ? TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO (NODE) : \
2233 (TYPE_LANG_SPECIFIC (NODE) \
2234 ? CLASSTYPE_TEMPLATE_INFO (NODE) \
2237 /* Set the template information for an ENUMERAL_, RECORD_, or
2238 UNION_TYPE to VAL. */
2239 #define SET_TYPE_TEMPLATE_INFO(NODE, VAL) \
2240 (TREE_CODE (NODE) == ENUMERAL_TYPE \
2241 ? (ENUM_TEMPLATE_INFO (NODE) = (VAL)) \
2242 : (CLASSTYPE_TEMPLATE_INFO (NODE) = (VAL)))
2244 #define TI_TEMPLATE(NODE) (TREE_PURPOSE (NODE))
2245 #define TI_ARGS(NODE) (TREE_VALUE (NODE))
2246 #define TI_PENDING_TEMPLATE_FLAG(NODE) TREE_LANG_FLAG_1 (NODE)
2248 /* We use TREE_VECs to hold template arguments. If there is only one
2249 level of template arguments, then the TREE_VEC contains the
2250 arguments directly. If there is more than one level of template
2251 arguments, then each entry in the TREE_VEC is itself a TREE_VEC,
2252 containing the template arguments for a single level. The first
2253 entry in the outer TREE_VEC is the outermost level of template
2254 parameters; the last is the innermost.
2256 It is incorrect to ever form a template argument vector containing
2257 only one level of arguments, but which is a TREE_VEC containing as
2258 its only entry the TREE_VEC for that level. */
2260 /* Nonzero if the template arguments is actually a vector of vectors,
2261 rather than just a vector. */
2262 #define TMPL_ARGS_HAVE_MULTIPLE_LEVELS(NODE) \
2263 (NODE && TREE_VEC_ELT (NODE, 0) \
2264 && TREE_CODE (TREE_VEC_ELT (NODE, 0)) == TREE_VEC)
2266 /* The depth of a template argument vector. When called directly by
2267 the parser, we use a TREE_LIST rather than a TREE_VEC to represent
2268 template arguments. In fact, we may even see NULL_TREE if there
2269 are no template arguments. In both of those cases, there is only
2270 one level of template arguments. */
2271 #define TMPL_ARGS_DEPTH(NODE) \
2272 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (NODE) ? TREE_VEC_LENGTH (NODE) : 1)
2274 /* The LEVELth level of the template ARGS. The outermost level of
2275 args is level 1, not level 0. */
2276 #define TMPL_ARGS_LEVEL(ARGS, LEVEL) \
2277 (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (ARGS) \
2278 ? TREE_VEC_ELT (ARGS, (LEVEL) - 1) : (ARGS))
2280 /* Set the LEVELth level of the template ARGS to VAL. This macro does
2281 not work with single-level argument vectors. */
2282 #define SET_TMPL_ARGS_LEVEL(ARGS, LEVEL, VAL) \
2283 (TREE_VEC_ELT (ARGS, (LEVEL) - 1) = (VAL))
2285 /* Accesses the IDXth parameter in the LEVELth level of the ARGS. */
2286 #define TMPL_ARG(ARGS, LEVEL, IDX) \
2287 (TREE_VEC_ELT (TMPL_ARGS_LEVEL (ARGS, LEVEL), IDX))
2289 /* Given a single level of template arguments in NODE, return the
2290 number of arguments. */
2291 #define NUM_TMPL_ARGS(NODE) \
2292 (TREE_VEC_LENGTH (NODE))
2294 /* Returns the innermost level of template arguments in ARGS. */
2295 #define INNERMOST_TEMPLATE_ARGS(NODE) \
2296 (get_innermost_template_args ((NODE), 1))
2298 /* The number of levels of template parameters given by NODE. */
2299 #define TMPL_PARMS_DEPTH(NODE) \
2300 ((HOST_WIDE_INT) TREE_INT_CST_LOW (TREE_PURPOSE (NODE)))
2302 /* The TEMPLATE_DECL instantiated or specialized by NODE. This
2303 TEMPLATE_DECL will be the immediate parent, not the most general
2304 template. For example, in:
2306 template <class T> struct S { template <class U> void f(U); }
2308 the FUNCTION_DECL for S<int>::f<double> will have, as its
2309 DECL_TI_TEMPLATE, `template <class U> S<int>::f<U>'.
2311 As a special case, for a member friend template of a template
2312 class, this value will not be a TEMPLATE_DECL, but rather an
2313 IDENTIFIER_NODE or OVERLOAD indicating the name of the template and
2314 any explicit template arguments provided. For example, in:
2316 template <class T> struct S { friend void f<int>(int, double); }
2318 the DECL_TI_TEMPLATE will be an IDENTIFIER_NODE for `f' and the
2319 DECL_TI_ARGS will be {int}. */
2320 #define DECL_TI_TEMPLATE(NODE) TI_TEMPLATE (DECL_TEMPLATE_INFO (NODE))
2322 /* The template arguments used to obtain this decl from the most
2323 general form of DECL_TI_TEMPLATE. For the example given for
2324 DECL_TI_TEMPLATE, the DECL_TI_ARGS will be {int, double}. These
2325 are always the full set of arguments required to instantiate this
2326 declaration from the most general template specialized here. */
2327 #define DECL_TI_ARGS(NODE) TI_ARGS (DECL_TEMPLATE_INFO (NODE))
2329 /* The TEMPLATE_DECL associated with NODE, a class type. Even if NODE
2330 will be generated from a partial specialization, the TEMPLATE_DECL
2331 referred to here will be the original template. For example,
2334 template <typename T> struct S {};
2335 template <typename T> struct S<T*> {};
2337 the CLASSTPYE_TI_TEMPLATE for S<int*> will be S, not the S<T*>. */
2338 #define CLASSTYPE_TI_TEMPLATE(NODE) TI_TEMPLATE (CLASSTYPE_TEMPLATE_INFO (NODE))
2339 #define CLASSTYPE_TI_ARGS(NODE) TI_ARGS (CLASSTYPE_TEMPLATE_INFO (NODE))
2341 /* For a template instantiation TYPE, returns the TYPE corresponding
2342 to the primary template. Otherwise returns TYPE itself. */
2343 #define CLASSTYPE_PRIMARY_TEMPLATE_TYPE(TYPE) \
2344 ((CLASSTYPE_USE_TEMPLATE ((TYPE)) \
2345 && !CLASSTYPE_TEMPLATE_SPECIALIZATION ((TYPE))) \
2346 ? TREE_TYPE (DECL_TEMPLATE_RESULT (DECL_PRIMARY_TEMPLATE \
2347 (CLASSTYPE_TI_TEMPLATE ((TYPE))))) \
2350 /* Like CLASS_TI_TEMPLATE, but also works for ENUMERAL_TYPEs. */
2351 #define TYPE_TI_TEMPLATE(NODE) \
2352 (TI_TEMPLATE (TYPE_TEMPLATE_INFO (NODE)))
2354 /* Like DECL_TI_ARGS, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */
2355 #define TYPE_TI_ARGS(NODE) \
2356 (TI_ARGS (TYPE_TEMPLATE_INFO (NODE)))
2358 #define INNERMOST_TEMPLATE_PARMS(NODE) TREE_VALUE (NODE)
2360 /* Nonzero if NODE (a TEMPLATE_DECL) is a member template, in the
2361 sense of [temp.mem]. */
2362 #define DECL_MEMBER_TEMPLATE_P(NODE) \
2363 (DECL_LANG_FLAG_1 (TEMPLATE_DECL_CHECK (NODE)))
2365 /* Nonzero if the NODE corresponds to the template parameters for a
2366 member template, whose inline definition is being processed after
2367 the class definition is complete. */
2368 #define TEMPLATE_PARMS_FOR_INLINE(NODE) TREE_LANG_FLAG_1 (NODE)
2370 /* Determine if a parameter (i.e., a PARM_DECL) is a function
2372 #define FUNCTION_PARAMETER_PACK_P(NODE) \
2373 (DECL_LANG_FLAG_1 (PARM_DECL_CHECK (NODE)))
2375 /* Determines if NODE is an expansion of one or more parameter packs,
2376 e.g., a TYPE_PACK_EXPANSION or EXPR_PACK_EXPANSION. */
2377 #define PACK_EXPANSION_P(NODE) \
2378 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION \
2379 || TREE_CODE (NODE) == EXPR_PACK_EXPANSION)
2381 /* Extracts the type or expression pattern from a TYPE_PACK_EXPANSION or
2382 EXPR_PACK_EXPANSION. */
2383 #define PACK_EXPANSION_PATTERN(NODE) \
2384 (TREE_CODE (NODE) == TYPE_PACK_EXPANSION? TREE_TYPE (NODE) \
2385 : TREE_OPERAND (NODE, 0))
2387 /* Sets the type or expression pattern for a TYPE_PACK_EXPANSION or
2388 EXPR_PACK_EXPANSION. */
2389 #define SET_PACK_EXPANSION_PATTERN(NODE,VALUE) \
2390 if (TREE_CODE (NODE) == TYPE_PACK_EXPANSION) \
2391 TREE_TYPE (NODE) = VALUE; \
2393 TREE_OPERAND (NODE, 0) = VALUE
2395 /* The list of parameter packs used in the PACK_EXPANSION_* node. The
2396 TREE_VALUE of each TREE_LIST contains the parameter packs. */
2397 #define PACK_EXPANSION_PARAMETER_PACKS(NODE) TREE_CHAIN (NODE)
2399 /* Determine if this is an argument pack. */
2400 #define ARGUMENT_PACK_P(NODE) \
2401 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK \
2402 || TREE_CODE (NODE) == NONTYPE_ARGUMENT_PACK)
2404 /* The arguments stored in an argument pack. Arguments are stored in a
2405 TREE_VEC, which may have length zero. */
2406 #define ARGUMENT_PACK_ARGS(NODE) \
2407 (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK? TREE_TYPE (NODE) \
2408 : TREE_OPERAND (NODE, 0))
2410 /* Set the arguments stored in an argument pack. VALUE must be a
2412 #define SET_ARGUMENT_PACK_ARGS(NODE,VALUE) \
2413 if (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK) \
2414 TREE_TYPE (NODE) = VALUE; \
2416 TREE_OPERAND (NODE, 0) = VALUE
2418 /* Whether the argument pack is "incomplete", meaning that more
2419 arguments can still be deduced. Incomplete argument packs are only
2420 used when the user has provided an explicit template argument list
2421 for a variadic function template. Some of the explicit template
2422 arguments will be placed into the beginning of the argument pack,
2423 but additional arguments might still be deduced. */
2424 #define ARGUMENT_PACK_INCOMPLETE_P(NODE) \
2425 TREE_LANG_FLAG_0 (ARGUMENT_PACK_ARGS (NODE))
2427 /* When ARGUMENT_PACK_INCOMPLETE_P, stores the explicit template
2428 arguments used to fill this pack. */
2429 #define ARGUMENT_PACK_EXPLICIT_ARGS(NODE) \
2430 TREE_TYPE (ARGUMENT_PACK_ARGS (NODE))
2432 /* In an ARGUMENT_PACK_SELECT, the argument pack from which an
2433 argument will be selected. */
2434 #define ARGUMENT_PACK_SELECT_FROM_PACK(NODE) \
2435 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->argument_pack)
2437 /* In an ARGUMENT_PACK_SELECT, the index of the argument we want to
2439 #define ARGUMENT_PACK_SELECT_INDEX(NODE) \
2440 (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->index)
2442 /* In an ARGUMENT_PACK_SELECT, the actual underlying argument that the
2443 ARGUMENT_PACK_SELECT represents. */
2444 #define ARGUMENT_PACK_SELECT_ARG(NODE) \
2445 TREE_VEC_ELT (ARGUMENT_PACK_ARGS (ARGUMENT_PACK_SELECT_FROM_PACK (NODE)), \
2446 ARGUMENT_PACK_SELECT_INDEX (NODE));
2448 /* In a FUNCTION_DECL, the saved language-specific per-function data. */
2449 #define DECL_SAVED_FUNCTION_DATA(NODE) \
2450 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (NODE)) \
2451 ->u.f.u.saved_language_function)
2453 /* Indicates an indirect_expr is for converting a reference. */
2454 #define REFERENCE_REF_P(NODE) \
2455 TREE_LANG_FLAG_0 (INDIRECT_REF_CHECK (NODE))
2457 #define NEW_EXPR_USE_GLOBAL(NODE) \
2458 TREE_LANG_FLAG_0 (NEW_EXPR_CHECK (NODE))
2459 #define DELETE_EXPR_USE_GLOBAL(NODE) \
2460 TREE_LANG_FLAG_0 (DELETE_EXPR_CHECK (NODE))
2461 #define DELETE_EXPR_USE_VEC(NODE) \
2462 TREE_LANG_FLAG_1 (DELETE_EXPR_CHECK (NODE))
2464 /* Indicates that this is a non-dependent COMPOUND_EXPR which will
2465 resolve to a function call. */
2466 #define COMPOUND_EXPR_OVERLOADED(NODE) \
2467 TREE_LANG_FLAG_0 (COMPOUND_EXPR_CHECK (NODE))
2469 /* In a CALL_EXPR appearing in a template, true if Koenig lookup
2470 should be performed at instantiation time. */
2471 #define KOENIG_LOOKUP_P(NODE) TREE_LANG_FLAG_0 (CALL_EXPR_CHECK (NODE))
2473 /* Indicates whether a string literal has been parenthesized. Such
2474 usages are disallowed in certain circumstances. */
2476 #define PAREN_STRING_LITERAL_P(NODE) \
2477 TREE_LANG_FLAG_0 (STRING_CST_CHECK (NODE))
2479 /* Nonzero if this AGGR_INIT_EXPR provides for initialization via a
2480 constructor call, rather than an ordinary function call. */
2481 #define AGGR_INIT_VIA_CTOR_P(NODE) \
2482 TREE_LANG_FLAG_0 (AGGR_INIT_EXPR_CHECK (NODE))
2484 /* AGGR_INIT_EXPR accessors. These are equivalent to the CALL_EXPR
2485 accessors, except for AGGR_INIT_EXPR_SLOT (which takes the place of
2486 CALL_EXPR_STATIC_CHAIN). */
2488 #define AGGR_INIT_EXPR_FN(NODE) TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 1)
2489 #define AGGR_INIT_EXPR_SLOT(NODE) \
2490 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 2)
2491 #define AGGR_INIT_EXPR_ARG(NODE, I) \
2492 TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), (I) + 3)
2493 #define aggr_init_expr_nargs(NODE) (VL_EXP_OPERAND_LENGTH(NODE) - 3)
2495 /* AGGR_INIT_EXPR_ARGP returns a pointer to the argument vector for NODE.
2496 We can't use &AGGR_INIT_EXPR_ARG (NODE, 0) because that will complain if
2497 the argument count is zero when checking is enabled. Instead, do
2498 the pointer arithmetic to advance past the 3 fixed operands in a
2499 AGGR_INIT_EXPR. That produces a valid pointer to just past the end of
2500 the operand array, even if it's not valid to dereference it. */
2501 #define AGGR_INIT_EXPR_ARGP(NODE) \
2502 (&(TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 0)) + 3)
2504 /* Abstract iterators for AGGR_INIT_EXPRs. */
2506 /* Structure containing iterator state. */
2507 typedef struct aggr_init_expr_arg_iterator_d GTY (())
2509 tree t; /* the aggr_init_expr */
2510 int n; /* argument count */
2511 int i; /* next argument index */
2512 } aggr_init_expr_arg_iterator;
2514 /* Initialize the abstract argument list iterator object ITER with the
2515 arguments from AGGR_INIT_EXPR node EXP. */
2517 init_aggr_init_expr_arg_iterator (tree exp,
2518 aggr_init_expr_arg_iterator *iter)
2521 iter->n = aggr_init_expr_nargs (exp);
2525 /* Return the next argument from abstract argument list iterator object ITER,
2526 and advance its state. Return NULL_TREE if there are no more arguments. */
2528 next_aggr_init_expr_arg (aggr_init_expr_arg_iterator *iter)
2531 if (iter->i >= iter->n)
2533 result = AGGR_INIT_EXPR_ARG (iter->t, iter->i);
2538 /* Initialize the abstract argument list iterator object ITER, then advance
2539 past and return the first argument. Useful in for expressions, e.g.
2540 for (arg = first_aggr_init_expr_arg (exp, &iter); arg;
2541 arg = next_aggr_init_expr_arg (&iter)) */
2543 first_aggr_init_expr_arg (tree exp, aggr_init_expr_arg_iterator *iter)
2545 init_aggr_init_expr_arg_iterator (exp, iter);
2546 return next_aggr_init_expr_arg (iter);
2549 /* Test whether there are more arguments in abstract argument list iterator
2550 ITER, without changing its state. */
2552 more_aggr_init_expr_args_p (const aggr_init_expr_arg_iterator *iter)
2554 return (iter->i < iter->n);
2557 /* Iterate through each argument ARG of AGGR_INIT_EXPR CALL, using variable
2558 ITER (of type aggr_init_expr_arg_iterator) to hold the iteration state. */
2559 #define FOR_EACH_AGGR_INIT_EXPR_ARG(arg, iter, call) \
2560 for ((arg) = first_aggr_init_expr_arg ((call), &(iter)); (arg); \
2561 (arg) = next_aggr_init_expr_arg (&(iter)))
2563 /* The TYPE_MAIN_DECL for a class template type is a TYPE_DECL, not a
2564 TEMPLATE_DECL. This macro determines whether or not a given class
2565 type is really a template type, as opposed to an instantiation or
2566 specialization of one. */
2567 #define CLASSTYPE_IS_TEMPLATE(NODE) \
2568 (CLASSTYPE_TEMPLATE_INFO (NODE) \
2569 && !CLASSTYPE_USE_TEMPLATE (NODE) \
2570 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE)))
2572 /* The name used by the user to name the typename type. Typically,
2573 this is an IDENTIFIER_NODE, and the same as the DECL_NAME on the
2574 corresponding TYPE_DECL. However, this may also be a
2575 TEMPLATE_ID_EXPR if we had something like `typename X::Y<T>'. */
2576 #define TYPENAME_TYPE_FULLNAME(NODE) (TYPENAME_TYPE_CHECK (NODE))->type.values
2578 /* True if a TYPENAME_TYPE was declared as an "enum". */
2579 #define TYPENAME_IS_ENUM_P(NODE) \
2580 (TREE_LANG_FLAG_0 (TYPENAME_TYPE_CHECK (NODE)))
2582 /* True if a TYPENAME_TYPE was declared as a "class", "struct", or
2584 #define TYPENAME_IS_CLASS_P(NODE) \
2585 (TREE_LANG_FLAG_1 (TYPENAME_TYPE_CHECK (NODE)))
2587 /* True if a TYPENAME_TYPE is in the process of being resolved. */
2588 #define TYPENAME_IS_RESOLVING_P(NODE) \
2589 (TREE_LANG_FLAG_2 (TYPENAME_TYPE_CHECK (NODE)))
2591 /* Nonzero in INTEGER_CST means that this int is negative by dint of
2592 using a twos-complement negated operand. */
2593 #define TREE_NEGATED_INT(NODE) TREE_LANG_FLAG_0 (INTEGER_CST_CHECK (NODE))
2597 A class that declares or inherits a virtual function is called a
2598 polymorphic class. */
2599 #define TYPE_POLYMORPHIC_P(NODE) (TREE_LANG_FLAG_2 (NODE))
2601 /* Nonzero if this class has a virtual function table pointer. */
2602 #define TYPE_CONTAINS_VPTR_P(NODE) \
2603 (TYPE_POLYMORPHIC_P (NODE) || CLASSTYPE_VBASECLASSES (NODE))
2605 /* This flag is true of a local VAR_DECL if it was declared in a for
2606 statement, but we are no longer in the scope of the for. */
2607 #define DECL_DEAD_FOR_LOCAL(NODE) DECL_LANG_FLAG_7 (VAR_DECL_CHECK (NODE))
2609 /* This flag is set on a VAR_DECL that is a DECL_DEAD_FOR_LOCAL
2610 if we already emitted a warning about using it. */
2611 #define DECL_ERROR_REPORTED(NODE) DECL_LANG_FLAG_0 (VAR_DECL_CHECK (NODE))
2613 /* Nonzero if NODE is a FUNCTION_DECL (for a function with global
2614 scope) declared in a local scope. */
2615 #define DECL_LOCAL_FUNCTION_P(NODE) \
2616 DECL_LANG_FLAG_0 (FUNCTION_DECL_CHECK (NODE))
2618 /* Nonzero if NODE is a DECL which we know about but which has not
2619 been explicitly declared, such as a built-in function or a friend
2620 declared inside a class. In the latter case DECL_HIDDEN_FRIEND_P
2622 #define DECL_ANTICIPATED(NODE) \
2623 (DECL_LANG_SPECIFIC (DECL_COMMON_CHECK (NODE))->decl_flags.anticipated_p)
2625 /* Nonzero if NODE is a FUNCTION_DECL which was declared as a friend
2626 within a class but has not been declared in the surrounding scope.
2627 The function is invisible except via argument dependent lookup. */
2628 #define DECL_HIDDEN_FRIEND_P(NODE) \
2629 (DECL_LANG_SPECIFIC (DECL_COMMON_CHECK (NODE))->decl_flags.hidden_friend_p)
2631 /* Nonzero if DECL has been declared threadprivate by
2632 #pragma omp threadprivate. */
2633 #define CP_DECL_THREADPRIVATE_P(DECL) \
2634 (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (DECL))->decl_flags.threadprivate_p)
2636 /* Record whether a typedef for type `int' was actually `signed int'. */
2637 #define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP)
2639 /* Returns nonzero if DECL has external linkage, as specified by the
2640 language standard. (This predicate may hold even when the
2641 corresponding entity is not actually given external linkage in the
2642 object file; see decl_linkage for details.) */
2643 #define DECL_EXTERNAL_LINKAGE_P(DECL) \
2644 (decl_linkage (DECL) == lk_external)
2646 /* Keep these codes in ascending code order. */
2648 #define INTEGRAL_CODE_P(CODE) \
2649 ((CODE) == ENUMERAL_TYPE \
2650 || (CODE) == BOOLEAN_TYPE \
2651 || (CODE) == INTEGER_TYPE)
2653 /* [basic.fundamental]
2655 Types bool, char, wchar_t, and the signed and unsigned integer types
2656 are collectively called integral types.
2658 Note that INTEGRAL_TYPE_P, as defined in tree.h, allows enumeration
2659 types as well, which is incorrect in C++. Keep these checks in
2660 ascending code order. */
2661 #define CP_INTEGRAL_TYPE_P(TYPE) \
2662 (TREE_CODE (TYPE) == BOOLEAN_TYPE \
2663 || TREE_CODE (TYPE) == INTEGER_TYPE)
2665 /* Returns true if TYPE is an integral or enumeration name. Keep
2666 these checks in ascending code order. */
2667 #define INTEGRAL_OR_ENUMERATION_TYPE_P(TYPE) \
2668 (TREE_CODE (TYPE) == ENUMERAL_TYPE || CP_INTEGRAL_TYPE_P (TYPE))
2670 /* [basic.fundamental]
2672 Integral and floating types are collectively called arithmetic
2675 As a GNU extension, we also accept complex types.
2677 Keep these checks in ascending code order. */
2678 #define ARITHMETIC_TYPE_P(TYPE) \
2679 (CP_INTEGRAL_TYPE_P (TYPE) \
2680 || TREE_CODE (TYPE) == REAL_TYPE \
2681 || TREE_CODE (TYPE) == COMPLEX_TYPE)
2685 Arithmetic types, enumeration types, pointer types, and
2686 pointer-to-member types, are collectively called scalar types.
2688 Keep these checks in ascending code order. */
2689 #define SCALAR_TYPE_P(TYPE) \
2690 (TYPE_PTRMEM_P (TYPE) \
2691 || TREE_CODE (TYPE) == ENUMERAL_TYPE \
2692 || ARITHMETIC_TYPE_P (TYPE) \
2693 || TYPE_PTR_P (TYPE) \
2694 || TYPE_PTRMEMFUNC_P (TYPE))
2698 An aggregate is an array or a class with no user-declared
2699 constructors, no private or protected non-static data members, no
2700 base classes, and no virtual functions.
2702 As an extension, we also treat vectors as aggregates. Keep these
2703 checks in ascending code order. */
2704 #define CP_AGGREGATE_TYPE_P(TYPE) \
2705 (TREE_CODE (TYPE) == VECTOR_TYPE \
2706 ||TREE_CODE (TYPE) == ARRAY_TYPE \
2707 || (CLASS_TYPE_P (TYPE) && !CLASSTYPE_NON_AGGREGATE (TYPE)))
2709 /* Nonzero for a class type means that the class type has a
2710 user-declared constructor. */
2711 #define TYPE_HAS_CONSTRUCTOR(NODE) (TYPE_LANG_FLAG_1 (NODE))
2713 /* When appearing in an INDIRECT_REF, it means that the tree structure
2714 underneath is actually a call to a constructor. This is needed
2715 when the constructor must initialize local storage (which can
2716 be automatically destroyed), rather than allowing it to allocate
2717 space from the heap.
2719 When appearing in a SAVE_EXPR, it means that underneath
2720 is a call to a constructor.
2722 When appearing in a CONSTRUCTOR, the expression is a
2725 When appearing in a FIELD_DECL, it means that this field
2726 has been duly initialized in its constructor. */
2727 #define TREE_HAS_CONSTRUCTOR(NODE) (TREE_LANG_FLAG_4 (NODE))
2729 /* True if NODE is a brace-enclosed initializer. */
2730 #define BRACE_ENCLOSED_INITIALIZER_P(NODE) \
2731 (TREE_CODE (NODE) == CONSTRUCTOR && !TREE_TYPE (NODE))
2733 /* True if NODE is a compound-literal, i.e., a brace-enclosed
2734 initializer cast to a particular type. */
2735 #define COMPOUND_LITERAL_P(NODE) \
2736 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_HAS_CONSTRUCTOR (NODE))
2738 #define EMPTY_CONSTRUCTOR_P(NODE) (TREE_CODE (NODE) == CONSTRUCTOR \
2739 && VEC_empty (constructor_elt, \
2740 CONSTRUCTOR_ELTS (NODE)) \
2741 && !TREE_HAS_CONSTRUCTOR (NODE))
2743 /* Nonzero means that an object of this type can not be initialized using
2744 an initializer list. */
2745 #define CLASSTYPE_NON_AGGREGATE(NODE) \
2746 (LANG_TYPE_CLASS_CHECK (NODE)->non_aggregate)
2747 #define TYPE_NON_AGGREGATE_CLASS(NODE) \
2748 (IS_AGGR_TYPE (NODE) && CLASSTYPE_NON_AGGREGATE (NODE))
2750 /* Nonzero if there is a user-defined X::op=(x&) for this class. */
2751 #define TYPE_HAS_COMPLEX_ASSIGN_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_assign_ref)
2753 /* Nonzero if there is a user-defined X::X(x&) for this class. */
2754 #define TYPE_HAS_COMPLEX_INIT_REF(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_init_ref)
2756 /* Nonzero if there is a user-defined default constructor for this class. */
2757 #define TYPE_HAS_COMPLEX_DFLT(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_dflt)
2759 /* Nonzero if TYPE has a trivial destructor. From [class.dtor]:
2761 A destructor is trivial if it is an implicitly declared
2764 - all of the direct base classes of its class have trivial
2767 - for all of the non-static data members of its class that are
2768 of class type (or array thereof), each such class has a
2769 trivial destructor. */
2770 #define TYPE_HAS_TRIVIAL_DESTRUCTOR(NODE) \
2771 (!TYPE_HAS_NONTRIVIAL_DESTRUCTOR (NODE))
2773 /* Nonzero for _TYPE node means that this type does not have a trivial
2774 destructor. Therefore, destroying an object of this type will
2775 involve a call to a destructor. This can apply to objects of
2776 ARRAY_TYPE is the type of the elements needs a destructor. */
2777 #define TYPE_HAS_NONTRIVIAL_DESTRUCTOR(NODE) \
2778 (TYPE_LANG_FLAG_4 (NODE))
2780 /* Nonzero for class type means that the default constructor is trivial. */
2781 #define TYPE_HAS_TRIVIAL_DFLT(NODE) \
2782 (TYPE_HAS_DEFAULT_CONSTRUCTOR (NODE) && ! TYPE_HAS_COMPLEX_DFLT (NODE))
2784 /* Nonzero for class type means that copy initialization of this type can use
2786 #define TYPE_HAS_TRIVIAL_INIT_REF(NODE) \
2787 (TYPE_HAS_INIT_REF (NODE) && ! TYPE_HAS_COMPLEX_INIT_REF (NODE))
2789 /* Nonzero for class type means that assignment of this type can use
2791 #define TYPE_HAS_TRIVIAL_ASSIGN_REF(NODE) \
2792 (TYPE_HAS_ASSIGN_REF (NODE) && ! TYPE_HAS_COMPLEX_ASSIGN_REF (NODE))
2794 /* Returns true if NODE is a pointer-to-data-member. */
2795 #define TYPE_PTRMEM_P(NODE) \
2796 (TREE_CODE (NODE) == OFFSET_TYPE)
2797 /* Returns true if NODE is a pointer. */
2798 #define TYPE_PTR_P(NODE) \
2799 (TREE_CODE (NODE) == POINTER_TYPE)
2801 /* Returns true if NODE is an object type:
2805 An object type is a (possibly cv-qualified) type that is not a
2806 function type, not a reference type, and not a void type.
2808 Keep these checks in ascending order, for speed. */
2809 #define TYPE_OBJ_P(NODE) \
2810 (TREE_CODE (NODE) != REFERENCE_TYPE \
2811 && TREE_CODE (NODE) != VOID_TYPE \
2812 && TREE_CODE (NODE) != FUNCTION_TYPE \
2813 && TREE_CODE (NODE) != METHOD_TYPE)
2815 /* Returns true if NODE is a pointer to an object. Keep these checks
2816 in ascending tree code order. */
2817 #define TYPE_PTROB_P(NODE) \
2818 (TYPE_PTR_P (NODE) && TYPE_OBJ_P (TREE_TYPE (NODE)))
2820 /* Returns true if NODE is a reference to an object. Keep these checks
2821 in ascending tree code order. */
2822 #define TYPE_REF_OBJ_P(NODE) \
2823 (TREE_CODE (NODE) == REFERENCE_TYPE && TYPE_OBJ_P (TREE_TYPE (NODE)))
2825 /* True if reference type NODE is an rvalue reference */
2826 #define TYPE_REF_IS_RVALUE(NODE) \
2827 TREE_LANG_FLAG_0 (REFERENCE_TYPE_CHECK (NODE))
2829 /* Returns true if NODE is a pointer to an object, or a pointer to
2830 void. Keep these checks in ascending tree code order. */
2831 #define TYPE_PTROBV_P(NODE) \
2832 (TYPE_PTR_P (NODE) \
2833 && !(TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE \
2834 || TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE))
2836 /* Returns true if NODE is a pointer to function. */
2837 #define TYPE_PTRFN_P(NODE) \
2838 (TREE_CODE (NODE) == POINTER_TYPE \
2839 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
2841 /* Returns true if NODE is a reference to function. */
2842 #define TYPE_REFFN_P(NODE) \
2843 (TREE_CODE (NODE) == REFERENCE_TYPE \
2844 && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
2846 /* Nonzero for _TYPE node means that this type is a pointer to member
2848 #define TYPE_PTRMEMFUNC_P(NODE) \
2849 (TREE_CODE (NODE) == RECORD_TYPE \
2850 && TYPE_LANG_SPECIFIC (NODE) \
2851 && TYPE_PTRMEMFUNC_FLAG (NODE))
2853 #define TYPE_PTRMEMFUNC_FLAG(NODE) \
2854 (LANG_TYPE_CLASS_CHECK (NODE)->ptrmemfunc_flag)
2856 /* Returns true if NODE is a pointer-to-member. */
2857 #define TYPE_PTR_TO_MEMBER_P(NODE) \
2858 (TYPE_PTRMEM_P (NODE) || TYPE_PTRMEMFUNC_P (NODE))
2860 /* Indicates when overload resolution may resolve to a pointer to
2861 member function. [expr.unary.op]/3 */
2862 #define PTRMEM_OK_P(NODE) \
2863 TREE_LANG_FLAG_0 (TREE_CHECK2 ((NODE), ADDR_EXPR, OFFSET_REF))
2865 /* Get the POINTER_TYPE to the METHOD_TYPE associated with this
2866 pointer to member function. TYPE_PTRMEMFUNC_P _must_ be true,
2867 before using this macro. */
2868 #define TYPE_PTRMEMFUNC_FN_TYPE(NODE) \
2869 (TREE_TYPE (TYPE_FIELDS (NODE)))
2871 /* Returns `A' for a type like `int (A::*)(double)' */
2872 #define TYPE_PTRMEMFUNC_OBJECT_TYPE(NODE) \
2873 TYPE_METHOD_BASETYPE (TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
2875 /* These are use to manipulate the canonical RECORD_TYPE from the
2876 hashed POINTER_TYPE, and can only be used on the POINTER_TYPE. */
2877 #define TYPE_GET_PTRMEMFUNC_TYPE(NODE) \
2878 (TYPE_LANG_SPECIFIC (NODE) ? LANG_TYPE_PTRMEM_CHECK (NODE)->record : NULL)
2879 #define TYPE_SET_PTRMEMFUNC_TYPE(NODE, VALUE) \
2881 if (TYPE_LANG_SPECIFIC (NODE) == NULL) \
2883 TYPE_LANG_SPECIFIC (NODE) = GGC_CNEWVAR \
2884 (struct lang_type, sizeof (struct lang_type_ptrmem)); \
2885 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.h.is_lang_type_class = 0; \
2887 TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.record = (VALUE); \
2890 /* For a pointer-to-member type of the form `T X::*', this is `X'.
2891 For a type like `void (X::*)() const', this type is `X', not `const
2892 X'. To get at the `const X' you have to look at the
2893 TYPE_PTRMEM_POINTED_TO_TYPE; there, the first parameter will have
2895 #define TYPE_PTRMEM_CLASS_TYPE(NODE) \
2896 (TYPE_PTRMEM_P (NODE) \
2897 ? TYPE_OFFSET_BASETYPE (NODE) \
2898 : TYPE_PTRMEMFUNC_OBJECT_TYPE (NODE))
2900 /* For a pointer-to-member type of the form `T X::*', this is `T'. */
2901 #define TYPE_PTRMEM_POINTED_TO_TYPE(NODE) \
2902 (TYPE_PTRMEM_P (NODE) \
2903 ? TREE_TYPE (NODE) \
2904 : TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
2906 /* For a pointer-to-member constant `X::Y' this is the RECORD_TYPE for
2908 #define PTRMEM_CST_CLASS(NODE) \
2909 TYPE_PTRMEM_CLASS_TYPE (TREE_TYPE (PTRMEM_CST_CHECK (NODE)))
2911 /* For a pointer-to-member constant `X::Y' this is the _DECL for
2913 #define PTRMEM_CST_MEMBER(NODE) (((ptrmem_cst_t)PTRMEM_CST_CHECK (NODE))->member)
2915 /* The expression in question for a TYPEOF_TYPE. */
2916 #define TYPEOF_TYPE_EXPR(NODE) (TYPEOF_TYPE_CHECK (NODE))->type.values
2918 /* The expression in question for a DECLTYPE_TYPE. */
2919 #define DECLTYPE_TYPE_EXPR(NODE) (DECLTYPE_TYPE_CHECK (NODE))->type.values
2921 /* Whether the DECLTYPE_TYPE_EXPR of NODE was originally parsed as an
2922 id-expression or a member-access expression. When false, it was
2923 parsed as a full expression. */
2924 #define DECLTYPE_TYPE_ID_EXPR_OR_MEMBER_ACCESS_P(NODE) \
2925 (DECLTYPE_TYPE_CHECK (NODE))->type.string_flag
2927 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `extern' was
2928 specified in its declaration. This can also be set for an
2929 erroneously declared PARM_DECL. */
2930 #define DECL_THIS_EXTERN(NODE) \
2931 DECL_LANG_FLAG_2 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
2933 /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `static' was
2934 specified in its declaration. This can also be set for an
2935 erroneously declared PARM_DECL. */
2936 #define DECL_THIS_STATIC(NODE) \
2937 DECL_LANG_FLAG_6 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
2939 /* Nonzero for FIELD_DECL node means that this field is a base class
2940 of the parent object, as opposed to a member field. */
2941 #define DECL_FIELD_IS_BASE(NODE) \
2942 DECL_LANG_FLAG_6 (FIELD_DECL_CHECK (NODE))
2944 /* Nonzero if TYPE is an anonymous union or struct type. We have to use a
2945 flag for this because "A union for which objects or pointers are
2946 declared is not an anonymous union" [class.union]. */
2947 #define ANON_AGGR_TYPE_P(NODE) \
2948 (CLASS_TYPE_P (NODE) && LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr)
2949 #define SET_ANON_AGGR_TYPE_P(NODE) \
2950 (LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr = 1)
2952 /* Nonzero if TYPE is an anonymous union type. */
2953 #define ANON_UNION_TYPE_P(NODE) \
2954 (TREE_CODE (NODE) == UNION_TYPE && ANON_AGGR_TYPE_P (NODE))
2956 #define UNKNOWN_TYPE LANG_TYPE
2958 /* Define fields and accessors for nodes representing declared names. */
2960 #define TYPE_WAS_ANONYMOUS(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->was_anonymous)
2962 /* C++: all of these are overloaded! These apply only to TYPE_DECLs. */
2964 /* The format of each node in the DECL_FRIENDLIST is as follows:
2966 The TREE_PURPOSE will be the name of a function, i.e., an
2967 IDENTIFIER_NODE. The TREE_VALUE will be itself a TREE_LIST, whose
2968 TREE_VALUEs are friends with the given name. */
2969 #define DECL_FRIENDLIST(NODE) (DECL_INITIAL (NODE))
2970 #define FRIEND_NAME(LIST) (TREE_PURPOSE (LIST))
2971 #define FRIEND_DECLS(LIST) (TREE_VALUE (LIST))
2973 /* The DECL_ACCESS, if non-NULL, is a TREE_LIST. The TREE_PURPOSE of
2974 each node is a type; the TREE_VALUE is the access granted for this
2975 DECL in that type. The DECL_ACCESS is set by access declarations.
2976 For example, if a member that would normally be public in a
2977 derived class is made protected, then the derived class and the
2978 protected_access_node will appear in the DECL_ACCESS for the node. */
2979 #define DECL_ACCESS(NODE) (LANG_DECL_U2_CHECK (NODE, 0)->access)
2981 /* Nonzero if the FUNCTION_DECL is a global constructor. */
2982 #define DECL_GLOBAL_CTOR_P(NODE) \
2983 (DECL_LANG_SPECIFIC (NODE)->decl_flags.global_ctor_p)
2985 /* Nonzero if the FUNCTION_DECL is a global destructor. */
2986 #define DECL_GLOBAL_DTOR_P(NODE) \
2987 (DECL_LANG_SPECIFIC (NODE)->decl_flags.global_dtor_p)
2989 /* Accessor macros for C++ template decl nodes. */
2991 /* The DECL_TEMPLATE_PARMS are a list. The TREE_PURPOSE of each node
2992 is a INT_CST whose TREE_INT_CST_LOW indicates the level of the
2993 template parameters, with 1 being the outermost set of template
2994 parameters. The TREE_VALUE is a vector, whose elements are the
2995 template parameters at each level. Each element in the vector is a
2996 TREE_LIST, whose TREE_VALUE is a PARM_DECL (if the parameter is a
2997 non-type parameter), or a TYPE_DECL (if the parameter is a type
2998 parameter). The TREE_PURPOSE is the default value, if any. The
2999 TEMPLATE_PARM_INDEX for the parameter is available as the
3000 DECL_INITIAL (for a PARM_DECL) or as the TREE_TYPE (for a
3002 #define DECL_TEMPLATE_PARMS(NODE) DECL_NON_COMMON_CHECK (NODE)->decl_non_common.arguments
3003 #define DECL_INNERMOST_TEMPLATE_PARMS(NODE) \
3004 INNERMOST_TEMPLATE_PARMS (DECL_TEMPLATE_PARMS (NODE))
3005 #define DECL_NTPARMS(NODE) \
3006 TREE_VEC_LENGTH (DECL_INNERMOST_TEMPLATE_PARMS (NODE))
3007 /* For function, method, class-data templates. */
3008 #define DECL_TEMPLATE_RESULT(NODE) DECL_RESULT_FLD (NODE)
3009 /* For a static member variable template, the
3010 DECL_TEMPLATE_INSTANTIATIONS list contains the explicitly and
3011 implicitly generated instantiations of the variable. There are no
3012 partial instantiations of static member variables, so all of these
3013 will be full instantiations.
3015 For a class template the DECL_TEMPLATE_INSTANTIATIONS lists holds
3016 all instantiations and specializations of the class type, including
3017 partial instantiations and partial specializations.
3019 In both cases, the TREE_PURPOSE of each node contains the arguments
3020 used; the TREE_VALUE contains the generated variable. The template
3021 arguments are always complete. For example, given:
3023 template <class T> struct S1 {
3024 template <class U> struct S2 {};
3025 template <class U> struct S2<U*> {};
3028 the record for the partial specialization will contain, as its
3029 argument list, { {T}, {U*} }, and will be on the
3030 DECL_TEMPLATE_INSTANTIATIONS list for `template <class T> template
3031 <class U> struct S1<T>::S2'.
3033 This list is not used for function templates. */
3034 #define DECL_TEMPLATE_INSTANTIATIONS(NODE) DECL_VINDEX (NODE)
3035 /* For a function template, the DECL_TEMPLATE_SPECIALIZATIONS lists
3036 contains all instantiations and specializations of the function,
3037 including partial instantiations. For a partial instantiation
3038 which is a specialization, this list holds only full
3039 specializations of the template that are instantiations of the
3040 partial instantiation. For example, given:
3042 template <class T> struct S {
3043 template <class U> void f(U);
3044 template <> void f(T);
3047 the `S<int>::f<int>(int)' function will appear on the
3048 DECL_TEMPLATE_SPECIALIZATIONS list for both `template <class T>
3049 template <class U> void S<T>::f(U)' and `template <class T> void
3050 S<int>::f(T)'. In the latter case, however, it will have only the
3051 innermost set of arguments (T, in this case). The DECL_TI_TEMPLATE
3052 for the function declaration will point at the specialization, not
3053 the fully general template.
3055 For a class template, this list contains the partial
3056 specializations of this template. (Full specializations are not
3057 recorded on this list.) The TREE_PURPOSE holds the arguments used
3058 in the partial specialization (e.g., for `template <class T> struct
3059 S<T*, int>' this will be `T*'.) The arguments will also include
3060 any outer template arguments. The TREE_VALUE holds the innermost
3061 template parameters for the specialization (e.g., `T' in the
3062 example above.) The TREE_TYPE is the _TYPE node for the partial
3065 This list is not used for static variable templates. */
3066 #define DECL_TEMPLATE_SPECIALIZATIONS(NODE) DECL_SIZE (NODE)
3068 /* Nonzero for a DECL which is actually a template parameter. Keep
3069 these checks in ascending tree code order. */
3070 #define DECL_TEMPLATE_PARM_P(NODE) \
3071 (DECL_LANG_FLAG_0 (NODE) \
3072 && (TREE_CODE (NODE) == CONST_DECL \
3073 || TREE_CODE (NODE) == PARM_DECL \
3074 || TREE_CODE (NODE) == TYPE_DECL \
3075 || TREE_CODE (NODE) == TEMPLATE_DECL))
3077 /* Mark NODE as a template parameter. */
3078 #define SET_DECL_TEMPLATE_PARM_P(NODE) \
3079 (DECL_LANG_FLAG_0 (NODE) = 1)
3081 /* Nonzero if NODE is a template template parameter. */
3082 #define DECL_TEMPLATE_TEMPLATE_PARM_P(NODE) \
3083 (TREE_CODE (NODE) == TEMPLATE_DECL && DECL_TEMPLATE_PARM_P (NODE))
3085 /* Nonzero if NODE is a TEMPLATE_DECL representing an
3086 UNBOUND_CLASS_TEMPLATE tree node. */
3087 #define DECL_UNBOUND_CLASS_TEMPLATE_P(NODE) \
3088 (TREE_CODE (NODE) == TEMPLATE_DECL && !DECL_TEMPLATE_RESULT (NODE))
3090 #define DECL_FUNCTION_TEMPLATE_P(NODE) \
3091 (TREE_CODE (NODE) == TEMPLATE_DECL \
3092 && !DECL_UNBOUND_CLASS_TEMPLATE_P (NODE) \
3093 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == FUNCTION_DECL)
3095 /* Nonzero for a DECL that represents a template class. */
3096 #define DECL_CLASS_TEMPLATE_P(NODE) \
3097 (TREE_CODE (NODE) == TEMPLATE_DECL \
3098 && !DECL_UNBOUND_CLASS_TEMPLATE_P (NODE) \
3099 && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == TYPE_DECL \
3100 && !DECL_TEMPLATE_TEMPLATE_PARM_P (NODE))
3102 /* Nonzero if NODE which declares a type. */
3103 #define DECL_DECLARES_TYPE_P(NODE) \
3104 (TREE_CODE (NODE) == TYPE_DECL || DECL_CLASS_TEMPLATE_P (NODE))
3106 /* Nonzero if NODE is the typedef implicitly generated for a type when
3107 the type is declared. In C++, `struct S {};' is roughly
3108 equivalent to `struct S {}; typedef struct S S;' in C.
3109 DECL_IMPLICIT_TYPEDEF_P will hold for the typedef indicated in this
3110 example. In C++, there is a second implicit typedef for each
3111 class, in the scope of `S' itself, so that you can say `S::S'.
3112 DECL_SELF_REFERENCE_P will hold for that second typedef. */
3113 #define DECL_IMPLICIT_TYPEDEF_P(NODE) \
3114 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_2 (NODE))
3115 #define SET_DECL_IMPLICIT_TYPEDEF_P(NODE) \
3116 (DECL_LANG_FLAG_2 (NODE) = 1)
3117 #define DECL_SELF_REFERENCE_P(NODE) \
3118 (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_4 (NODE))
3119 #define SET_DECL_SELF_REFERENCE_P(NODE) \
3120 (DECL_LANG_FLAG_4 (NODE) = 1)
3122 /* A `primary' template is one that has its own template header. A
3123 member function of a class template is a template, but not primary.
3124 A member template is primary. Friend templates are primary, too. */
3126 /* Returns the primary template corresponding to these parameters. */
3127 #define DECL_PRIMARY_TEMPLATE(NODE) \
3128 (TREE_TYPE (DECL_INNERMOST_TEMPLATE_PARMS (NODE)))
3130 /* Returns nonzero if NODE is a primary template. */
3131 #define PRIMARY_TEMPLATE_P(NODE) (DECL_PRIMARY_TEMPLATE (NODE) == (NODE))
3133 /* Nonzero iff NODE is a specialization of a template. The value
3134 indicates the type of specializations:
3136 1=implicit instantiation
3138 2=partial or explicit specialization, e.g.:
3140 template <> int min<int> (int, int),
3142 3=explicit instantiation, e.g.:
3144 template int min<int> (int, int);
3146 Note that NODE will be marked as a specialization even if the
3147 template it is instantiating is not a primary template. For
3150 template <typename T> struct O {
3155 both O<int>::f and O<int>::I will be marked as instantiations.
3157 If DECL_USE_TEMPLATE is nonzero, then DECL_TEMPLATE_INFO will also
3159 #define DECL_USE_TEMPLATE(NODE) (DECL_LANG_SPECIFIC (NODE)->decl_flags.use_template)
3161 /* Like DECL_USE_TEMPLATE, but for class types. */
3162 #define CLASSTYPE_USE_TEMPLATE(NODE) \
3163 (LANG_TYPE_CLASS_CHECK (NODE)->use_template)
3165 /* True if NODE is a specialization of a primary template. */
3166 #define CLASSTYPE_SPECIALIZATION_OF_PRIMARY_TEMPLATE_P(NODE) \
3167 (CLASS_TYPE_P (NODE) \
3168 && CLASSTYPE_USE_TEMPLATE (NODE) \
3169 && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (arg)))
3171 #define DECL_TEMPLATE_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) & 1)
3172 #define CLASSTYPE_TEMPLATE_INSTANTIATION(NODE) \
3173 (CLASSTYPE_USE_TEMPLATE (NODE) & 1)
3175 #define DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) == 2)
3176 #define SET_DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) = 2)
3178 /* Returns true for an explicit or partial specialization of a class
3180 #define CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
3181 (CLASSTYPE_USE_TEMPLATE (NODE) == 2)
3182 #define SET_CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
3183 (CLASSTYPE_USE_TEMPLATE (NODE) = 2)
3185 #define DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 1)
3186 #define SET_DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 1)
3187 #define CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
3188 (CLASSTYPE_USE_TEMPLATE (NODE) == 1)
3189 #define SET_CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
3190 (CLASSTYPE_USE_TEMPLATE (NODE) = 1)
3192 #define DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 3)
3193 #define SET_DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 3)
3194 #define CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
3195 (CLASSTYPE_USE_TEMPLATE (NODE) == 3)
3196 #define SET_CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
3197 (CLASSTYPE_USE_TEMPLATE (NODE) = 3)
3199 /* Nonzero if DECL is a friend function which is an instantiation
3200 from the point of view of the compiler, but not from the point of
3201 view of the language. For example given:
3202 template <class T> struct S { friend void f(T) {}; };
3203 the declaration of `void f(int)' generated when S<int> is
3204 instantiated will not be a DECL_TEMPLATE_INSTANTIATION, but will be
3205 a DECL_FRIEND_PSUEDO_TEMPLATE_INSTANTIATION. */
3206 #define DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION(DECL) \
3207 (DECL_TEMPLATE_INFO (DECL) && !DECL_USE_TEMPLATE (DECL))
3209 /* Nonzero iff we are currently processing a declaration for an
3210 entity with its own template parameter list, and which is not a
3211 full specialization. */
3212 #define PROCESSING_REAL_TEMPLATE_DECL_P() \
3213 (processing_template_decl > template_class_depth (current_scope ()))
3215 /* Nonzero if this VAR_DECL or FUNCTION_DECL has already been
3216 instantiated, i.e. its definition has been generated from the
3217 pattern given in the template. */
3218 #define DECL_TEMPLATE_INSTANTIATED(NODE) \
3219 DECL_LANG_FLAG_1 (VAR_OR_FUNCTION_DECL_CHECK (NODE))
3221 /* We know what we're doing with this decl now. */
3222 #define DECL_INTERFACE_KNOWN(NODE) DECL_LANG_FLAG_5 (NODE)
3224 /* DECL_EXTERNAL must be set on a decl until the decl is actually emitted,
3225 so that assemble_external will work properly. So we have this flag to
3226 tell us whether the decl is really not external. */
3227 #define DECL_NOT_REALLY_EXTERN(NODE) \
3228 (DECL_LANG_SPECIFIC (NODE)->decl_flags.not_really_extern)
3230 #define DECL_REALLY_EXTERN(NODE) \
3231 (DECL_EXTERNAL (NODE) && ! DECL_NOT_REALLY_EXTERN (NODE))
3233 /* A thunk is a stub function.
3235 A thunk is an alternate entry point for an ordinary FUNCTION_DECL.
3236 The address of the ordinary FUNCTION_DECL is given by the
3237 DECL_INITIAL, which is always an ADDR_EXPR whose operand is a
3238 FUNCTION_DECL. The job of the thunk is to either adjust the this
3239 pointer before transferring control to the FUNCTION_DECL, or call
3240 FUNCTION_DECL and then adjust the result value. Note, the result
3241 pointer adjusting thunk must perform a call to the thunked
3242 function, (or be implemented via passing some invisible parameter
3243 to the thunked function, which is modified to perform the
3244 adjustment just before returning).
3246 A thunk may perform either, or both, of the following operations:
3248 o Adjust the this or result pointer by a constant offset.
3249 o Adjust the this or result pointer by looking up a vcall or vbase offset
3252 A this pointer adjusting thunk converts from a base to a derived
3253 class, and hence adds the offsets. A result pointer adjusting thunk
3254 converts from a derived class to a base, and hence subtracts the
3255 offsets. If both operations are performed, then the constant
3256 adjustment is performed first for this pointer adjustment and last
3257 for the result pointer adjustment.
3259 The constant adjustment is given by THUNK_FIXED_OFFSET. If the
3260 vcall or vbase offset is required, THUNK_VIRTUAL_OFFSET is
3261 used. For this pointer adjusting thunks, it is the vcall offset
3262 into the vtable. For result pointer adjusting thunks it is the
3263 binfo of the virtual base to convert to. Use that binfo's vbase
3266 It is possible to have equivalent covariant thunks. These are
3267 distinct virtual covariant thunks whose vbase offsets happen to
3268 have the same value. THUNK_ALIAS is used to pick one as the
3269 canonical thunk, which will get all the this pointer adjusting
3270 thunks attached to it. */
3272 /* An integer indicating how many bytes should be subtracted from the
3273 this or result pointer when this function is called. */
3274 #define THUNK_FIXED_OFFSET(DECL) \
3275 (DECL_LANG_SPECIFIC (THUNK_FUNCTION_CHECK (DECL))->u.f.u5.fixed_offset)
3277 /* A tree indicating how to perform the virtual adjustment. For a this
3278 adjusting thunk it is the number of bytes to be added to the vtable
3279 to find the vcall offset. For a result adjusting thunk, it is the
3280 binfo of the relevant virtual base. If NULL, then there is no
3281 virtual adjust. (The vptr is always located at offset zero from
3282 the this or result pointer.) (If the covariant type is within the
3283 class hierarchy being laid out, the vbase index is not yet known
3284 at the point we need to create the thunks, hence the need to use
3287 #define THUNK_VIRTUAL_OFFSET(DECL) \
3288 (LANG_DECL_U2_CHECK (FUNCTION_DECL_CHECK (DECL), 0)->access)
3290 /* A thunk which is equivalent to another thunk. */
3291 #define THUNK_ALIAS(DECL) \
3292 (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->decl_flags.u.template_info)
3294 /* For thunk NODE, this is the FUNCTION_DECL thunked to. It is
3295 possible for the target to be a thunk too. */
3296 #define THUNK_TARGET(NODE) \
3297 (DECL_LANG_SPECIFIC (NODE)->u.f.befriending_classes)
3299 /* True for a SCOPE_REF iff the "template" keyword was used to
3300 indicate that the qualified name denotes a template. */
3301 #define QUALIFIED_NAME_IS_TEMPLATE(NODE) \
3302 (TREE_LANG_FLAG_0 (SCOPE_REF_CHECK (NODE)))
3304 /* True for an OMP_ATOMIC that has dependent parameters. These are stored
3305 as an expr in operand 1, and integer_zero_node in operand 0. */
3306 #define OMP_ATOMIC_DEPENDENT_P(NODE) \
3307 (TREE_CODE (TREE_OPERAND (OMP_ATOMIC_CHECK (NODE), 0)) == INTEGER_CST)
3309 /* Used while gimplifying continue statements bound to OMP_FOR nodes. */
3310 #define OMP_FOR_GIMPLIFYING_P(NODE) \
3311 (TREE_LANG_FLAG_0 (OMP_FOR_CHECK (NODE)))
3313 /* A language-specific token attached to the OpenMP data clauses to
3314 hold code (or code fragments) related to ctors, dtors, and op=.
3315 See semantics.c for details. */
3316 #define CP_OMP_CLAUSE_INFO(NODE) \
3317 TREE_TYPE (OMP_CLAUSE_RANGE_CHECK (NODE, OMP_CLAUSE_PRIVATE, \
3318 OMP_CLAUSE_COPYPRIVATE))
3320 /* These macros provide convenient access to the various _STMT nodes
3321 created when parsing template declarations. */
3322 #define TRY_STMTS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 0)
3323 #define TRY_HANDLERS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 1)
3325 #define EH_SPEC_STMTS(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 0)
3326 #define EH_SPEC_RAISES(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 1)
3328 #define USING_STMT_NAMESPACE(NODE) TREE_OPERAND (USING_STMT_CHECK (NODE), 0)
3330 /* Nonzero if this try block is a function try block. */
3331 #define FN_TRY_BLOCK_P(NODE) TREE_LANG_FLAG_3 (TRY_BLOCK_CHECK (NODE))
3332 #define HANDLER_PARMS(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 0)
3333 #define HANDLER_BODY(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 1)
3334 #define HANDLER_TYPE(NODE) TREE_TYPE (HANDLER_CHECK (NODE))
3336 /* CLEANUP_STMT accessors. The statement(s) covered, the cleanup to run
3337 and the VAR_DECL for which this cleanup exists. */
3338 #define CLEANUP_BODY(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 0)
3339 #define CLEANUP_EXPR(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 1)
3340 #define CLEANUP_DECL(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 2)
3342 /* IF_STMT accessors. These give access to the condition of the if
3343 statement, the then block of the if statement, and the else block
3344 of the if statement if it exists. */
3345 #define IF_COND(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 0)
3346 #define THEN_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 1)
3347 #define ELSE_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 2)
3349 /* WHILE_STMT accessors. These give access to the condition of the
3350 while statement and the body of the while statement, respectively. */
3351 #define WHILE_COND(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 0)
3352 #define WHILE_BODY(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 1)
3354 /* DO_STMT accessors. These give access to the condition of the do
3355 statement and the body of the do statement, respectively. */
3356 #define DO_COND(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 0)
3357 #define DO_BODY(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 1)
3359 /* FOR_STMT accessors. These give access to the init statement,
3360 condition, update expression, and body of the for statement,
3362 #define FOR_INIT_STMT(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 0)
3363 #define FOR_COND(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 1)
3364 #define FOR_EXPR(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 2)
3365 #define FOR_BODY(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 3)
3367 #define SWITCH_STMT_COND(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 0)
3368 #define SWITCH_STMT_BODY(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 1)
3369 #define SWITCH_STMT_TYPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 2)
3371 /* STMT_EXPR accessor. */
3372 #define STMT_EXPR_STMT(NODE) TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0)
3374 /* EXPR_STMT accessor. This gives the expression associated with an
3375 expression statement. */
3376 #define EXPR_STMT_EXPR(NODE) TREE_OPERAND (EXPR_STMT_CHECK (NODE), 0)
3378 /* True if this TARGET_EXPR was created by build_cplus_new, and so we can
3379 discard it if it isn't useful. */
3380 #define TARGET_EXPR_IMPLICIT_P(NODE) \
3381 TREE_LANG_FLAG_0 (TARGET_EXPR_CHECK (NODE))
3383 /* An enumeration of the kind of tags that C++ accepts. */
3385 none_type = 0, /* Not a tag type. */
3386 record_type, /* "struct" types. */
3387 class_type, /* "class" types. */
3388 union_type, /* "union" types. */
3389 enum_type, /* "enum" types. */
3390 typename_type /* "typename" types. */
3393 /* The various kinds of lvalues we distinguish. */
3394 typedef enum cp_lvalue_kind {
3395 clk_none = 0, /* Things that are not an lvalue. */
3396 clk_ordinary = 1, /* An ordinary lvalue. */
3397 clk_class = 2, /* An rvalue of class-type. */
3398 clk_bitfield = 4, /* An lvalue for a bit-field. */
3399 clk_packed = 8 /* An lvalue for a packed field. */
3402 /* Various kinds of template specialization, instantiation, etc. */
3403 typedef enum tmpl_spec_kind {
3404 tsk_none, /* Not a template at all. */
3405 tsk_invalid_member_spec, /* An explicit member template
3406 specialization, but the enclosing
3407 classes have not all been explicitly
3409 tsk_invalid_expl_inst, /* An explicit instantiation containing
3410 template parameter lists. */
3411 tsk_excessive_parms, /* A template declaration with too many
3412 template parameter lists. */
3413 tsk_insufficient_parms, /* A template declaration with too few
3415 tsk_template, /* A template declaration. */
3416 tsk_expl_spec, /* An explicit specialization. */
3417 tsk_expl_inst /* An explicit instantiation. */
3420 /* The various kinds of access. BINFO_ACCESS depends on these being
3421 two bit quantities. The numerical values are important; they are
3422 used to initialize RTTI data structures, so changing them changes
3424 typedef enum access_kind {
3425 ak_none = 0, /* Inaccessible. */
3426 ak_public = 1, /* Accessible, as a `public' thing. */
3427 ak_protected = 2, /* Accessible, as a `protected' thing. */
3428 ak_private = 3 /* Accessible, as a `private' thing. */
3431 /* The various kinds of special functions. If you add to this list,
3432 you should update special_function_p as well. */
3433 typedef enum special_function_kind {
3434 sfk_none = 0, /* Not a special function. This enumeral
3435 must have value zero; see
3436 special_function_p. */
3437 sfk_constructor, /* A constructor. */
3438 sfk_copy_constructor, /* A copy constructor. */
3439 sfk_assignment_operator, /* An assignment operator. */
3440 sfk_destructor, /* A destructor. */
3441 sfk_complete_destructor, /* A destructor for complete objects. */
3442 sfk_base_destructor, /* A destructor for base subobjects. */
3443 sfk_deleting_destructor, /* A destructor for complete objects that
3444 deletes the object after it has been
3446 sfk_conversion /* A conversion operator. */
3447 } special_function_kind;
3449 /* The various kinds of linkage. From [basic.link],
3451 A name is said to have linkage when it might denote the same
3452 object, reference, function, type, template, namespace or value
3453 as a name introduced in another scope:
3455 -- When a name has external linkage, the entity it denotes can
3456 be referred to from scopes of other translation units or from
3457 other scopes of the same translation unit.
3459 -- When a name has internal linkage, the entity it denotes can
3460 be referred to by names from other scopes in the same
3463 -- When a name has no linkage, the entity it denotes cannot be
3464 referred to by names from other scopes. */
3466 typedef enum linkage_kind {
3467 lk_none, /* No linkage. */
3468 lk_internal, /* Internal linkage. */
3469 lk_external /* External linkage. */
3472 /* Bitmask flags to control type substitution. */
3473 typedef enum tsubst_flags_t {
3474 tf_none = 0, /* nothing special */
3475 tf_error = 1 << 0, /* give error messages */
3476 tf_warning = 1 << 1, /* give warnings too */
3477 tf_ignore_bad_quals = 1 << 2, /* ignore bad cvr qualifiers */
3478 tf_keep_type_decl = 1 << 3, /* retain typedef type decls
3479 (make_typename_type use) */
3480 tf_ptrmem_ok = 1 << 4, /* pointers to member ok (internal
3481 instantiate_type use) */
3482 tf_user = 1 << 5, /* found template must be a user template
3483 (lookup_template_class use) */
3484 tf_conv = 1 << 6, /* We are determining what kind of
3485 conversion might be permissible,
3486 not actually performing the
3488 /* Convenient substitution flags combinations. */
3489 tf_warning_or_error = tf_warning | tf_error
3492 /* The kind of checking we can do looking in a class hierarchy. */
3493 typedef enum base_access {
3494 ba_any = 0, /* Do not check access, allow an ambiguous base,
3495 prefer a non-virtual base */
3496 ba_unique = 1 << 0, /* Must be a unique base. */
3497 ba_check_bit = 1 << 1, /* Check access. */
3498 ba_check = ba_unique | ba_check_bit,
3499 ba_ignore_scope = 1 << 2, /* Ignore access allowed by local scope. */
3500 ba_quiet = 1 << 3 /* Do not issue error messages. */
3503 /* The various kinds of access check during parsing. */
3504 typedef enum deferring_kind {
3505 dk_no_deferred = 0, /* Check access immediately */
3506 dk_deferred = 1, /* Deferred check */
3507 dk_no_check = 2 /* No access check */
3510 /* The kind of base we can find, looking in a class hierarchy.
3511 Values <0 indicate we failed. */
3512 typedef enum base_kind {
3513 bk_inaccessible = -3, /* The base is inaccessible */
3514 bk_ambig = -2, /* The base is ambiguous */
3515 bk_not_base = -1, /* It is not a base */
3516 bk_same_type = 0, /* It is the same type */
3517 bk_proper_base = 1, /* It is a proper base */
3518 bk_via_virtual = 2 /* It is a proper base, but via a virtual
3519 path. This might not be the canonical
3523 /* Node for "pointer to (virtual) function".
3524 This may be distinct from ptr_type_node so gdb can distinguish them. */
3525 #define vfunc_ptr_type_node vtable_entry_type
3528 /* For building calls to `delete'. */
3529 extern GTY(()) tree integer_two_node;
3530 extern GTY(()) tree integer_three_node;
3532 /* The number of function bodies which we are currently processing.
3533 (Zero if we are at namespace scope, one inside the body of a
3534 function, two inside the body of a function in a local class, etc.) */
3535 extern int function_depth;
3539 /* These values are used for the `STRICT' parameter to type_unification and
3540 fn_type_unification. Their meanings are described with the
3541 documentation for fn_type_unification. */
3543 typedef enum unification_kind_t {
3547 } unification_kind_t;
3551 extern int current_class_depth;
3553 /* An array of all local classes present in this translation unit, in
3554 declaration order. */
3555 extern GTY(()) VEC(tree,gc) *local_classes;
3557 /* Here's where we control how name mangling takes place. */
3559 /* Cannot use '$' up front, because this confuses gdb
3560 (names beginning with '$' are gdb-local identifiers).
3562 Note that all forms in which the '$' is significant are long enough
3563 for direct indexing (meaning that if we know there is a '$'
3564 at a particular location, we can index into the string at
3565 any other location that provides distinguishing characters). */
3567 /* Define NO_DOLLAR_IN_LABEL in your favorite tm file if your assembler
3568 doesn't allow '$' in symbol names. */
3569 #ifndef NO_DOLLAR_IN_LABEL
3573 #define AUTO_TEMP_NAME "_$tmp_"
3574 #define VFIELD_BASE "$vf"
3575 #define VFIELD_NAME "_vptr$"
3576 #define VFIELD_NAME_FORMAT "_vptr$%s"
3577 #define ANON_AGGRNAME_FORMAT "$_%d"
3579 #else /* NO_DOLLAR_IN_LABEL */
3581 #ifndef NO_DOT_IN_LABEL
3585 #define AUTO_TEMP_NAME "_.tmp_"
3586 #define VFIELD_BASE ".vf"
3587 #define VFIELD_NAME "_vptr."
3588 #define VFIELD_NAME_FORMAT "_vptr.%s"
3590 #define ANON_AGGRNAME_FORMAT "._%d"
3592 #else /* NO_DOT_IN_LABEL */
3594 #define IN_CHARGE_NAME "__in_chrg"
3595 #define AUTO_TEMP_NAME "__tmp_"
3596 #define TEMP_NAME_P(ID_NODE) \
3597 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, \
3598 sizeof (AUTO_TEMP_NAME) - 1))
3599 #define VTABLE_NAME "__vt_"
3600 #define VTABLE_NAME_P(ID_NODE) \
3601 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VTABLE_NAME, \
3602 sizeof (VTABLE_NAME) - 1))
3603 #define VFIELD_BASE "__vfb"
3604 #define VFIELD_NAME "__vptr_"
3605 #define VFIELD_NAME_P(ID_NODE) \
3606 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, \
3607 sizeof (VFIELD_NAME) - 1))
3608 #define VFIELD_NAME_FORMAT "__vptr_%s"
3610 #define ANON_AGGRNAME_PREFIX "__anon_"
3611 #define ANON_AGGRNAME_P(ID_NODE) \
3612 (!strncmp (IDENTIFIER_POINTER (ID_NODE), ANON_AGGRNAME_PREFIX, \
3613 sizeof (ANON_AGGRNAME_PREFIX) - 1))
3614 #define ANON_AGGRNAME_FORMAT "__anon_%d"
3616 #endif /* NO_DOT_IN_LABEL */
3617 #endif /* NO_DOLLAR_IN_LABEL */
3619 #define THIS_NAME "this"
3621 #define IN_CHARGE_NAME "__in_chrg"
3623 #define VTBL_PTR_TYPE "__vtbl_ptr_type"
3624 #define VTABLE_DELTA_NAME "__delta"
3625 #define VTABLE_PFN_NAME "__pfn"
3627 #if !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL)
3629 #define VTABLE_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == 'v' \
3630 && IDENTIFIER_POINTER (ID_NODE)[2] == 't' \
3631 && IDENTIFIER_POINTER (ID_NODE)[3] == JOINER)
3633 #define TEMP_NAME_P(ID_NODE) \
3634 (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, sizeof (AUTO_TEMP_NAME)-1))
3635 #define VFIELD_NAME_P(ID_NODE) \
3636 (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, sizeof(VFIELD_NAME)-1))
3638 /* For anonymous aggregate types, we need some sort of name to
3639 hold on to. In practice, this should not appear, but it should
3640 not be harmful if it does. */
3641 #define ANON_AGGRNAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[0] == JOINER \
3642 && IDENTIFIER_POINTER (ID_NODE)[1] == '_')
3643 #endif /* !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) */
3646 /* Nonzero if we're done parsing and into end-of-file activities. */
3650 /* A list of namespace-scope objects which have constructors or
3651 destructors which reside in the global scope. The decl is stored
3652 in the TREE_VALUE slot and the initializer is stored in the
3653 TREE_PURPOSE slot. */
3654 extern GTY(()) tree static_aggregates;
3656 enum overload_flags { NO_SPECIAL = 0, DTOR_FLAG, OP_FLAG, TYPENAME_FLAG };
3658 /* These are uses as bits in flags passed to various functions to
3659 control their behavior. Despite the LOOKUP_ prefix, many of these
3660 do not control name lookup. ??? Functions using these flags should
3661 probably be modified to accept explicit boolean flags for the
3662 behaviors relevant to them. */
3663 /* Check for access violations. */
3664 #define LOOKUP_PROTECT (1 << 0)
3665 /* Complain if no suitable member function matching the arguments is
3667 #define LOOKUP_COMPLAIN (1 << 1)
3668 #define LOOKUP_NORMAL (LOOKUP_PROTECT | LOOKUP_COMPLAIN)
3669 /* Even if the function found by lookup is a virtual function, it
3670 should be called directly. */
3671 #define LOOKUP_NONVIRTUAL (1 << 2)
3672 /* Non-converting (i.e., "explicit") constructors are not tried. */
3673 #define LOOKUP_ONLYCONVERTING (1 << 3)
3674 /* If a temporary is created, it should be created so that it lives
3675 as long as the current variable bindings; otherwise it only lives
3676 until the end of the complete-expression. It also forces
3677 direct-initialization in cases where other parts of the compiler
3678 have already generated a temporary, such as reference
3679 initialization and the catch parameter. */
3680 #define DIRECT_BIND (1 << 4)
3681 /* User-defined conversions are not permitted. (Built-in conversions
3683 #define LOOKUP_NO_CONVERSION (1 << 5)
3684 /* The user has explicitly called a destructor. (Therefore, we do
3685 not need to check that the object is non-NULL before calling the
3687 #define LOOKUP_DESTRUCTOR (1 << 6)
3688 /* Do not permit references to bind to temporaries. */
3689 #define LOOKUP_NO_TEMP_BIND (1 << 7)
3690 /* Do not accept objects, and possibly namespaces. */
3691 #define LOOKUP_PREFER_TYPES (1 << 8)
3692 /* Do not accept objects, and possibly types. */
3693 #define LOOKUP_PREFER_NAMESPACES (1 << 9)
3694 /* Accept types or namespaces. */
3695 #define LOOKUP_PREFER_BOTH (LOOKUP_PREFER_TYPES | LOOKUP_PREFER_NAMESPACES)
3696 /* We are checking that a constructor can be called -- but we do not
3697 actually plan to call it. */
3698 #define LOOKUP_CONSTRUCTOR_CALLABLE (1 << 10)
3699 /* Return friend declarations and un-declared builtin functions.
3700 (Normally, these entities are registered in the symbol table, but
3701 not found by lookup.) */
3702 #define LOOKUP_HIDDEN (LOOKUP_CONSTRUCTOR_CALLABLE << 1)
3703 /* Prefer that the lvalue be treated as an rvalue. */
3704 #define LOOKUP_PREFER_RVALUE (LOOKUP_HIDDEN << 1)
3706 #define LOOKUP_NAMESPACES_ONLY(F) \
3707 (((F) & LOOKUP_PREFER_NAMESPACES) && !((F) & LOOKUP_PREFER_TYPES))
3708 #define LOOKUP_TYPES_ONLY(F) \
3709 (!((F) & LOOKUP_PREFER_NAMESPACES) && ((F) & LOOKUP_PREFER_TYPES))
3710 #define LOOKUP_QUALIFIERS_ONLY(F) ((F) & LOOKUP_PREFER_BOTH)
3713 /* These flags are used by the conversion code.
3714 CONV_IMPLICIT : Perform implicit conversions (standard and user-defined).
3715 CONV_STATIC : Perform the explicit conversions for static_cast.
3716 CONV_CONST : Perform the explicit conversions for const_cast.
3717 CONV_REINTERPRET: Perform the explicit conversions for reinterpret_cast.
3718 CONV_PRIVATE : Perform upcasts to private bases.
3719 CONV_FORCE_TEMP : Require a new temporary when converting to the same
3722 #define CONV_IMPLICIT 1
3723 #define CONV_STATIC 2
3724 #define CONV_CONST 4
3725 #define CONV_REINTERPRET 8
3726 #define CONV_PRIVATE 16
3727 /* #define CONV_NONCONVERTING 32 */
3728 #define CONV_FORCE_TEMP 64
3729 #define CONV_OLD_CONVERT (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
3731 #define CONV_C_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
3732 | CONV_REINTERPRET | CONV_PRIVATE | CONV_FORCE_TEMP)
3734 /* Used by build_expr_type_conversion to indicate which types are
3735 acceptable as arguments to the expression under consideration. */
3737 #define WANT_INT 1 /* integer types, including bool */
3738 #define WANT_FLOAT 2 /* floating point types */
3739 #define WANT_ENUM 4 /* enumerated types */
3740 #define WANT_POINTER 8 /* pointer types */
3741 #define WANT_NULL 16 /* null pointer constant */
3742 #define WANT_VECTOR 32 /* vector types */
3743 #define WANT_ARITH (WANT_INT | WANT_FLOAT | WANT_VECTOR)
3745 /* Used with comptypes, and related functions, to guide type
3748 #define COMPARE_STRICT 0 /* Just check if the types are the
3750 #define COMPARE_BASE 1 /* Check to see if the second type is
3751 derived from the first. */
3752 #define COMPARE_DERIVED 2 /* Like COMPARE_BASE, but in
3754 #define COMPARE_REDECLARATION 4 /* The comparison is being done when
3755 another declaration of an existing
3757 #define COMPARE_STRUCTURAL 8 /* The comparison is intended to be
3758 structural. The actual comparison
3759 will be identical to
3762 /* Used with push_overloaded_decl. */
3763 #define PUSH_GLOBAL 0 /* Push the DECL into namespace scope,
3764 regardless of the current scope. */
3765 #define PUSH_LOCAL 1 /* Push the DECL into the current
3767 #define PUSH_USING 2 /* We are pushing this DECL as the
3768 result of a using declaration. */
3770 /* Used with start function. */
3771 #define SF_DEFAULT 0 /* No flags. */
3772 #define SF_PRE_PARSED 1 /* The function declaration has
3773 already been parsed. */
3774 #define SF_INCLASS_INLINE 2 /* The function is an inline, defined
3775 in the class body. */
3777 /* Returns nonzero iff TYPE1 and TYPE2 are the same type, or if TYPE2
3778 is derived from TYPE1, or if TYPE2 is a pointer (reference) to a
3779 class derived from the type pointed to (referred to) by TYPE1. */
3780 #define same_or_base_type_p(TYPE1, TYPE2) \
3781 comptypes ((TYPE1), (TYPE2), COMPARE_BASE)
3783 /* These macros are used to access a TEMPLATE_PARM_INDEX. */
3784 #define TEMPLATE_PARM_INDEX_CAST(NODE) \
3785 ((template_parm_index*)TEMPLATE_PARM_INDEX_CHECK (NODE))
3786 #define TEMPLATE_PARM_IDX(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->index)
3787 #define TEMPLATE_PARM_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->level)
3788 #define TEMPLATE_PARM_DESCENDANTS(NODE) (TREE_CHAIN (NODE))
3789 #define TEMPLATE_PARM_ORIG_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->orig_level)
3790 #define TEMPLATE_PARM_DECL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->decl)
3791 #define TEMPLATE_PARM_PARAMETER_PACK(NODE) \
3792 (TREE_LANG_FLAG_0 (TEMPLATE_PARM_INDEX_CHECK (NODE)))
3794 /* These macros are for accessing the fields of TEMPLATE_TYPE_PARM,
3795 TEMPLATE_TEMPLATE_PARM and BOUND_TEMPLATE_TEMPLATE_PARM nodes. */
3796 #define TEMPLATE_TYPE_PARM_INDEX(NODE) \
3797 (TREE_CHECK3 ((NODE), TEMPLATE_TYPE_PARM, TEMPLATE_TEMPLATE_PARM, \
3798 BOUND_TEMPLATE_TEMPLATE_PARM))->type.values
3799 #define TEMPLATE_TYPE_IDX(NODE) \
3800 (TEMPLATE_PARM_IDX (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3801 #define TEMPLATE_TYPE_LEVEL(NODE) \
3802 (TEMPLATE_PARM_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3803 #define TEMPLATE_TYPE_ORIG_LEVEL(NODE) \
3804 (TEMPLATE_PARM_ORIG_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3805 #define TEMPLATE_TYPE_DECL(NODE) \
3806 (TEMPLATE_PARM_DECL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3807 #define TEMPLATE_TYPE_PARAMETER_PACK(NODE) \
3808 (TEMPLATE_PARM_PARAMETER_PACK (TEMPLATE_TYPE_PARM_INDEX (NODE)))
3810 /* These constants can used as bit flags in the process of tree formatting.
3812 TFF_PLAIN_IDENTIFIER: unqualified part of a name.
3813 TFF_SCOPE: include the class and namespace scope of the name.
3814 TFF_CHASE_TYPEDEF: print the original type-id instead of the typedef-name.
3815 TFF_DECL_SPECIFIERS: print decl-specifiers.
3816 TFF_CLASS_KEY_OR_ENUM: precede a class-type name (resp. enum name) with
3817 a class-key (resp. `enum').
3818 TFF_RETURN_TYPE: include function return type.
3819 TFF_FUNCTION_DEFAULT_ARGUMENTS: include function default parameter values.
3820 TFF_EXCEPTION_SPECIFICATION: show function exception specification.
3821 TFF_TEMPLATE_HEADER: show the template<...> header in a
3822 template-declaration.
3823 TFF_TEMPLATE_NAME: show only template-name.
3824 TFF_EXPR_IN_PARENS: parenthesize expressions.
3825 TFF_NO_FUNCTION_ARGUMENTS: don't show function arguments.
3826 TFF_UNQUALIFIED_NAME: do not print the qualifying scope of the
3827 top-level entity. */
3829 #define TFF_PLAIN_IDENTIFIER (0)
3830 #define TFF_SCOPE (1)
3831 #define TFF_CHASE_TYPEDEF (1 << 1)
3832 #define TFF_DECL_SPECIFIERS (1 << 2)
3833 #define TFF_CLASS_KEY_OR_ENUM (1 << 3)
3834 #define TFF_RETURN_TYPE (1 << 4)
3835 #define TFF_FUNCTION_DEFAULT_ARGUMENTS (1 << 5)
3836 #define TFF_EXCEPTION_SPECIFICATION (1 << 6)
3837 #define TFF_TEMPLATE_HEADER (1 << 7)
3838 #define TFF_TEMPLATE_NAME (1 << 8)
3839 #define TFF_EXPR_IN_PARENS (1 << 9)
3840 #define TFF_NO_FUNCTION_ARGUMENTS (1 << 10)
3841 #define TFF_UNQUALIFIED_NAME (1 << 11)
3843 /* Returns the TEMPLATE_DECL associated to a TEMPLATE_TEMPLATE_PARM
3845 #define TEMPLATE_TEMPLATE_PARM_TEMPLATE_DECL(NODE) \
3846 ((TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM) \
3847 ? TYPE_TI_TEMPLATE (NODE) \
3852 extern void init_reswords (void);
3854 /* Indexed by TREE_CODE, these tables give C-looking names to
3855 operators represented by TREE_CODES. For example,
3856 opname_tab[(int) MINUS_EXPR] == "-". */
3857 extern const char **opname_tab, **assignop_tab;
3859 typedef struct operator_name_info_t GTY(())
3861 /* The IDENTIFIER_NODE for the operator. */
3863 /* The name of the operator. */
3865 /* The mangled name of the operator. */
3866 const char *mangled_name;
3867 /* The arity of the operator. */
3869 } operator_name_info_t;
3871 /* A mapping from tree codes to operator name information. */
3872 extern GTY(()) operator_name_info_t operator_name_info
3873 [(int) LAST_CPLUS_TREE_CODE];
3874 /* Similar, but for assignment operators. */
3875 extern GTY(()) operator_name_info_t assignment_operator_name_info
3876 [(int) LAST_CPLUS_TREE_CODE];
3878 /* A type-qualifier, or bitmask therefore, using the TYPE_QUAL
3881 typedef int cp_cv_quals;
3883 /* A storage class. */
3885 typedef enum cp_storage_class {
3886 /* sc_none must be zero so that zeroing a cp_decl_specifier_seq
3887 sets the storage_class field to sc_none. */
3896 /* An individual decl-specifier. */
3898 typedef enum cp_decl_spec {
3900 ds_signed = ds_first,
3917 /* A decl-specifier-seq. */
3919 typedef struct cp_decl_specifier_seq {
3920 /* The number of times each of the keywords has been seen. */
3921 unsigned specs[(int) ds_last];
3922 /* The primary type, if any, given by the decl-specifier-seq.
3923 Modifiers, like "short", "const", and "unsigned" are not
3924 reflected here. This field will be a TYPE, unless a typedef-name
3925 was used, in which case it will be a TYPE_DECL. */
3927 /* The attributes, if any, provided with the specifier sequence. */
3929 /* If non-NULL, a built-in type that the user attempted to redefine
3930 to some other type. */
3931 tree redefined_builtin_type;
3932 /* The storage class specified -- or sc_none if no storage class was
3933 explicitly specified. */
3934 cp_storage_class storage_class;
3935 /* True iff TYPE_SPEC indicates a user-defined type. */
3936 BOOL_BITFIELD user_defined_type_p : 1;
3937 /* True iff multiple types were (erroneously) specified for this
3938 decl-specifier-seq. */
3939 BOOL_BITFIELD multiple_types_p : 1;
3940 /* True iff multiple storage classes were (erroneously) specified
3941 for this decl-specifier-seq or a combination of a storage class
3942 with a typedef specifier. */
3943 BOOL_BITFIELD conflicting_specifiers_p : 1;
3944 /* True iff at least one decl-specifier was found. */
3945 BOOL_BITFIELD any_specifiers_p : 1;
3946 /* True iff "int" was explicitly provided. */
3947 BOOL_BITFIELD explicit_int_p : 1;
3948 /* True iff "char" was explicitly provided. */
3949 BOOL_BITFIELD explicit_char_p : 1;
3950 } cp_decl_specifier_seq;
3952 /* The various kinds of declarators. */
3954 typedef enum cp_declarator_kind {
3962 } cp_declarator_kind;
3966 typedef struct cp_declarator cp_declarator;
3968 typedef struct cp_parameter_declarator cp_parameter_declarator;
3970 /* A parameter, before it has been semantically analyzed. */
3971 struct cp_parameter_declarator {
3972 /* The next parameter, or NULL_TREE if none. */
3973 cp_parameter_declarator *next;
3974 /* The decl-specifiers-seq for the parameter. */
3975 cp_decl_specifier_seq decl_specifiers;
3976 /* The declarator for the parameter. */
3977 cp_declarator *declarator;
3978 /* The default-argument expression, or NULL_TREE, if none. */
3979 tree default_argument;
3980 /* True iff this is the first parameter in the list and the
3981 parameter sequence ends with an ellipsis. */
3986 struct cp_declarator {
3987 /* The kind of declarator. */
3988 ENUM_BITFIELD (cp_declarator_kind) kind : 4;
3989 /* Whether we parsed an ellipsis (`...') just before the declarator,
3990 to indicate this is a parameter pack. */
3991 BOOL_BITFIELD parameter_pack_p : 1;
3992 /* Attributes that apply to this declarator. */
3994 /* For all but cdk_id and cdk_error, the contained declarator. For
3995 cdk_id and cdk_error, guaranteed to be NULL. */
3996 cp_declarator *declarator;
3997 location_t id_loc; /* Currently only set for cdk_id. */
3999 /* For identifiers. */
4001 /* If non-NULL, the qualifying scope (a NAMESPACE_DECL or
4002 *_TYPE) for this identifier. */
4003 tree qualifying_scope;
4004 /* The unqualified name of the entity -- an IDENTIFIER_NODE,
4005 BIT_NOT_EXPR, or TEMPLATE_ID_EXPR. */
4006 tree unqualified_name;
4007 /* If this is the name of a function, what kind of special
4008 function (if any). */
4009 special_function_kind sfk;
4011 /* For functions. */
4013 /* The parameters to the function. */
4014 cp_parameter_declarator *parameters;
4015 /* The cv-qualifiers for the function. */
4016 cp_cv_quals qualifiers;
4017 /* The exception-specification for the function. */
4018 tree exception_specification;
4022 /* The bounds to the array. */
4025 /* For cdk_pointer and cdk_ptrmem. */
4027 /* The cv-qualifiers for the pointer. */
4028 cp_cv_quals qualifiers;
4029 /* For cdk_ptrmem, the class type containing the member. */
4032 /* For cdk_reference */
4034 /* The cv-qualifiers for the reference. These qualifiers are
4035 only used to diagnose ill-formed code. */
4036 cp_cv_quals qualifiers;
4037 /* Whether this is an rvalue reference */
4043 /* A level of template instantiation. */
4044 struct tinst_level GTY(())
4046 /* The immediately deeper level in the chain. */
4047 struct tinst_level *next;
4049 /* The original node. Can be either a DECL (for a function or static
4050 data member) or a TYPE (for a class), depending on what we were
4051 asked to instantiate. */
4054 /* The location where the template is instantiated. */
4057 /* True if the location is in a system header. */
4058 bool in_system_header_p;
4061 /* A parameter list indicating for a function with no parameters,
4062 e.g "int f(void)". */
4063 extern cp_parameter_declarator *no_parameters;
4066 extern bool check_dtor_name (tree, tree);
4068 extern tree build_vfield_ref (tree, tree);
4069 extern tree build_conditional_expr (tree, tree, tree);
4070 extern tree build_addr_func (tree);
4071 extern tree build_call_a (tree, int, tree*);
4072 extern tree build_call_n (tree, int, ...);
4073 extern bool null_ptr_cst_p (tree);
4074 extern bool sufficient_parms_p (const_tree);
4075 extern tree type_decays_to (tree);
4076 extern tree build_user_type_conversion (tree, tree, int);
4077 extern tree build_new_function_call (tree, tree, bool);
4078 extern tree build_operator_new_call (tree, tree, tree *, tree *,
4080 extern tree build_new_method_call (tree, tree, tree, tree, int,
4082 extern tree build_special_member_call (tree, tree, tree, tree, int);
4083 extern tree build_new_op (enum tree_code, int, tree, tree, tree, bool *);
4084 extern tree build_op_delete_call (enum tree_code, tree, tree, bool, tree, tree);
4085 extern bool can_convert (tree, tree);
4086 extern bool can_convert_arg (tree, tree, tree, int);
4087 extern bool can_convert_arg_bad (tree, tree, tree);
4088 extern bool enforce_access (tree, tree, tree);
4089 extern tree convert_default_arg (tree, tree, tree, int);
4090 extern tree convert_arg_to_ellipsis (tree);
4091 extern tree build_x_va_arg (tree, tree);
4092 extern tree cxx_type_promotes_to (tree);
4093 extern tree type_passed_as (tree);
4094 extern tree convert_for_arg_passing (tree, tree);
4095 extern bool is_properly_derived_from (tree, tree);
4096 extern tree initialize_reference (tree, tree, tree, tree *);
4097 extern tree make_temporary_var_for_ref_to_temp (tree, tree);
4098 extern tree strip_top_quals (tree);
4099 extern tree perform_implicit_conversion (tree, tree);
4100 extern tree perform_direct_initialization_if_possible (tree, tree, bool);
4101 extern tree in_charge_arg_for_name (tree);
4102 extern tree build_cxx_call (tree, int, tree *);
4103 #ifdef ENABLE_CHECKING
4104 extern void validate_conversion_obstack (void);
4105 #endif /* ENABLE_CHECKING */
4108 extern tree build_base_path (enum tree_code, tree,
4110 extern tree convert_to_base (tree, tree, bool, bool);
4111 extern tree convert_to_base_statically (tree, tree);
4112 extern tree build_vtbl_ref (tree, tree);
4113 extern tree build_vfn_ref (tree, tree);
4114 extern tree get_vtable_decl (tree, int);
4115 extern void resort_type_method_vec (void *, void *,
4116 gt_pointer_operator, void *);
4117 extern bool add_method (tree, tree, tree);
4118 extern bool currently_open_class (tree);
4119 extern tree currently_open_derived_class (tree);
4120 extern tree finish_struct (tree, tree);
4121 extern void finish_struct_1 (tree);
4122 extern int resolves_to_fixed_type_p (tree, int *);
4123 extern void init_class_processing (void);
4124 extern int is_empty_class (tree);
4125 extern void pushclass (tree);
4126 extern void popclass (void);
4127 extern void push_nested_class (tree);
4128 extern void pop_nested_class (void);
4129 extern int current_lang_depth (void);
4130 extern void push_lang_context (tree);
4131 extern void pop_lang_context (void);
4132 extern tree instantiate_type (tree, tree, tsubst_flags_t);
4133 extern void print_class_statistics (void);
4134 extern void cxx_print_statistics (void);
4135 extern void cxx_print_xnode (FILE *, tree, int);
4136 extern void cxx_print_decl (FILE *, tree, int);
4137 extern void cxx_print_type (FILE *, tree, int);
4138 extern void cxx_print_identifier (FILE *, tree, int);
4139 extern void cxx_print_error_function (struct diagnostic_context *,
4141 extern void build_self_reference (void);
4142 extern int same_signature_p (const_tree, const_tree);
4143 extern void maybe_add_class_template_decl_list (tree, tree, int);
4144 extern void unreverse_member_declarations (tree);
4145 extern void invalidate_class_lookup_cache (void);
4146 extern void maybe_note_name_used_in_class (tree, tree);
4147 extern void note_name_declared_in_class (tree, tree);
4148 extern tree get_vtbl_decl_for_binfo (tree);
4149 extern void debug_class (tree);
4150 extern void debug_thunks (tree);
4151 extern tree cp_fold_obj_type_ref (tree, tree);
4152 extern void set_linkage_according_to_type (tree, tree);
4153 extern void determine_key_method (tree);
4154 extern void check_for_override (tree, tree);
4155 extern void push_class_stack (void);
4156 extern void pop_class_stack (void);
4159 extern tree convert_to_reference (tree, tree, int, int, tree);
4160 extern tree convert_from_reference (tree);
4161 extern tree force_rvalue (tree);
4162 extern tree ocp_convert (tree, tree, int, int);
4163 extern tree cp_convert (tree, tree);
4164 extern tree cp_convert_and_check (tree, tree);
4165 extern tree convert_to_void (tree, const char */*implicit context*/);
4166 extern tree convert_force (tree, tree, int);
4167 extern tree build_expr_type_conversion (int, tree, bool);
4168 extern tree type_promotes_to (tree);
4169 extern tree perform_qualification_conversions (tree, tree);
4170 extern void clone_function_decl (tree, int);
4171 extern void adjust_clone_args (tree);
4174 extern tree poplevel (int, int, int);
4175 extern void insert_block (tree);
4176 extern tree pushdecl (tree);
4177 extern tree pushdecl_maybe_friend (tree, bool);
4178 extern void cxx_init_decl_processing (void);
4179 enum cp_tree_node_structure_enum cp_tree_node_structure
4180 (union lang_tree_node *);
4181 extern bool cxx_mark_addressable (tree);
4182 extern void cxx_push_function_context (struct function *);
4183 extern void cxx_pop_function_context (struct function *);
4184 extern void maybe_push_cleanup_level (tree);
4185 extern void finish_scope (void);
4186 extern void push_switch (tree);
4187 extern void pop_switch (void);
4188 extern tree pushtag (tree, tree, tag_scope);
4189 extern tree make_anon_name (void);
4190 extern int decls_match (tree, tree);
4191 extern tree duplicate_decls (tree, tree, bool);
4192 extern tree pushdecl_top_level_maybe_friend (tree, bool);
4193 extern tree pushdecl_top_level_and_finish (tree, tree);
4194 extern tree declare_local_label (tree);
4195 extern tree define_label (location_t, tree);
4196 extern void check_goto (tree);
4197 extern bool check_omp_return (void);
4198 extern tree make_typename_type (tree, tree, enum tag_types, tsubst_flags_t);
4199 extern tree make_unbound_class_template (tree, tree, tree, tsubst_flags_t);
4200 extern tree check_for_out_of_scope_variable (tree);
4201 extern tree build_library_fn (tree, tree);
4202 extern tree build_library_fn_ptr (const char *, tree);
4203 extern tree build_cp_library_fn_ptr (const char *, tree);
4204 extern tree push_library_fn (tree, tree);
4205 extern tree push_void_library_fn (tree, tree);
4206 extern tree push_throw_library_fn (tree, tree);
4207 extern tree check_tag_decl (cp_decl_specifier_seq *);
4208 extern tree shadow_tag (cp_decl_specifier_seq *);
4209 extern tree groktypename (cp_decl_specifier_seq *, const cp_declarator *);
4210 extern tree start_decl (const cp_declarator *, cp_decl_specifier_seq *, int, tree, tree, tree *);
4211 extern void start_decl_1 (tree, bool);
4212 extern void cp_finish_decl (tree, tree, bool, tree, int);
4213 extern void finish_decl (tree, tree, tree);
4214 extern int cp_complete_array_type (tree *, tree, bool);
4215 extern tree build_ptrmemfunc_type (tree);
4216 extern tree build_ptrmem_type (tree, tree);
4217 /* the grokdeclarator prototype is in decl.h */
4218 extern tree build_this_parm (tree, cp_cv_quals);
4219 extern int copy_fn_p (const_tree);
4220 extern bool move_fn_p (const_tree);
4221 extern tree get_scope_of_declarator (const cp_declarator *);
4222 extern void grok_special_member_properties (tree);
4223 extern int grok_ctor_properties (const_tree, const_tree);
4224 extern bool grok_op_properties (tree, bool);
4225 extern tree xref_tag (enum tag_types, tree, tag_scope, bool);
4226 extern tree xref_tag_from_type (tree, tree, tag_scope);
4227 extern bool xref_basetypes (tree, tree);
4228 extern tree start_enum (tree);
4229 extern void finish_enum (tree);
4230 extern void build_enumerator (tree, tree, tree);
4231 extern void start_preparsed_function (tree, tree, int);
4232 extern int start_function (cp_decl_specifier_seq *, const cp_declarator *, tree);
4233 extern tree begin_function_body (void);
4234 extern void finish_function_body (tree);
4235 extern tree finish_function (int);
4236 extern tree start_method (cp_decl_specifier_seq *, const cp_declarator *, tree);
4237 extern tree finish_method (tree);
4238 extern void maybe_register_incomplete_var (tree);
4239 extern void complete_vars (tree);
4240 extern void finish_stmt (void);
4241 extern void print_other_binding_stack (struct cp_binding_level *);
4242 extern void revert_static_member_fn (tree);
4243 extern void fixup_anonymous_aggr (tree);
4244 extern int check_static_variable_definition (tree, tree);
4245 extern tree compute_array_index_type (tree, tree);
4246 extern tree check_default_argument (tree, tree);
4247 typedef int (*walk_namespaces_fn) (tree, void *);
4248 extern int walk_namespaces (walk_namespaces_fn,
4250 extern int wrapup_globals_for_namespace (tree, void *);
4251 extern tree create_implicit_typedef (tree, tree);
4252 extern tree maybe_push_decl (tree);
4253 extern tree force_target_expr (tree, tree);
4254 extern tree build_target_expr_with_type (tree, tree);
4255 extern int local_variable_p (const_tree);
4256 extern tree register_dtor_fn (tree);
4257 extern tmpl_spec_kind current_tmpl_spec_kind (int);
4258 extern tree cp_fname_init (const char *, tree *);
4259 extern tree cxx_builtin_function (tree decl);
4260 extern tree check_elaborated_type_specifier (enum tag_types, tree, bool);
4261 extern void warn_extern_redeclared_static (tree, tree);
4262 extern const char *cxx_comdat_group (tree);
4263 extern bool cp_missing_noreturn_ok_p (tree);
4264 extern void initialize_artificial_var (tree, tree);
4265 extern tree check_var_type (tree, tree);
4266 extern tree reshape_init (tree, tree);
4269 extern bool check_java_method (tree);
4270 extern tree build_memfn_type (tree, tree, cp_cv_quals);
4271 extern void maybe_retrofit_in_chrg (tree);
4272 extern void maybe_make_one_only (tree);
4273 extern void grokclassfn (tree, tree,
4274 enum overload_flags);
4275 extern tree grok_array_decl (tree, tree);
4276 extern tree delete_sanity (tree, tree, bool, int);
4277 extern tree check_classfn (tree, tree, tree);
4278 extern void check_member_template (tree);
4279 extern tree grokfield (const cp_declarator *, cp_decl_specifier_seq *,
4280 tree, bool, tree, tree);
4281 extern tree grokbitfield (const cp_declarator *, cp_decl_specifier_seq *,
4283 extern bool is_late_template_attribute (tree);
4284 extern void cplus_decl_attributes (tree *, tree, int);
4285 extern void finish_anon_union (tree);
4286 extern void cp_write_global_declarations (void);
4287 extern tree coerce_new_type (tree);
4288 extern tree coerce_delete_type (tree);
4289 extern void comdat_linkage (tree);
4290 extern void determine_visibility (tree);
4291 extern void constrain_class_visibility (tree);
4292 extern void update_member_visibility (tree);
4293 extern void import_export_decl (tree);
4294 extern tree build_cleanup (tree);
4295 extern tree build_offset_ref_call_from_tree (tree, tree);
4296 extern void check_default_args (tree);
4297 extern void mark_used (tree);
4298 extern void finish_static_data_member_decl (tree, tree, bool, tree, int);
4299 extern tree cp_build_parm_decl (tree, tree);
4300 extern tree get_guard (tree);
4301 extern tree get_guard_cond (tree);
4302 extern tree set_guard (tree);
4303 extern tree cxx_callgraph_analyze_expr (tree *, int *, tree);
4304 extern void mark_needed (tree);
4305 extern bool decl_needed_p (tree);
4306 extern void note_vague_linkage_fn (tree);
4307 extern tree build_artificial_parm (tree, tree);
4310 extern void init_error (void);
4311 extern const char *type_as_string (tree, int);
4312 extern const char *decl_as_string (tree, int);
4313 extern const char *expr_as_string (tree, int);
4314 extern const char *lang_decl_name (tree, int);
4315 extern const char *language_to_string (enum languages);
4316 extern const char *class_key_or_enum_as_string (tree);
4317 extern void print_instantiation_context (void);
4318 extern void maybe_warn_variadic_templates (void);
4321 extern void init_exception_processing (void);
4322 extern tree expand_start_catch_block (tree);
4323 extern void expand_end_catch_block (void);
4324 extern tree build_exc_ptr (void);
4325 extern tree build_throw (tree);
4326 extern int nothrow_libfn_p (const_tree);
4327 extern void check_handlers (tree);
4328 extern void choose_personality_routine (enum languages);
4329 extern tree eh_type_info (tree);
4332 extern rtx cxx_expand_expr (tree, rtx,
4335 extern tree cplus_expand_constant (tree);
4338 extern int is_friend (tree, tree);
4339 extern void make_friend_class (tree, tree, bool);
4340 extern void add_friend (tree, tree, bool);
4341 extern tree do_friend (tree, tree, tree, tree, enum overload_flags, bool);
4344 extern tree expand_member_init (tree);
4345 extern void emit_mem_initializers (tree);
4346 extern tree build_aggr_init (tree, tree, int);
4347 extern int is_aggr_type (tree, int);
4348 extern tree get_type_value (tree);
4349 extern tree build_zero_init (tree, tree, bool);
4350 extern tree build_offset_ref (tree, tree, bool);
4351 extern tree build_new (tree, tree, tree, tree, int);
4352 extern tree build_vec_init (tree, tree, tree, bool, int);
4353 extern tree build_default_init (tree, tree);
4354 extern tree build_delete (tree, tree,
4355 special_function_kind,
4357 extern void push_base_cleanups (void);
4358 extern tree build_vec_delete (tree, tree,
4359 special_function_kind, int);
4360 extern tree create_temporary_var (tree);
4361 extern void initialize_vtbl_ptrs (tree);
4362 extern tree build_java_class_ref (tree);
4363 extern tree integral_constant_value (tree);
4366 extern void cxx_dup_lang_specific_decl (tree);
4367 extern void yyungetc (int, int);
4369 extern tree unqualified_name_lookup_error (tree);
4370 extern tree unqualified_fn_lookup_error (tree);
4371 extern tree build_lang_decl (enum tree_code, tree, tree);
4372 extern void retrofit_lang_decl (tree);
4373 extern tree copy_decl (tree);
4374 extern tree copy_type (tree);
4375 extern tree cxx_make_type (enum tree_code);
4376 extern tree make_aggr_type (enum tree_code);
4377 extern void yyerror (const char *);
4378 extern void yyhook (int);
4379 extern bool cxx_init (void);
4380 extern void cxx_finish (void);
4381 extern bool in_main_input_context (void);
4384 extern void init_method (void);
4385 extern tree make_thunk (tree, bool, tree, tree);
4386 extern void finish_thunk (tree);
4387 extern void use_thunk (tree, bool);
4388 extern void synthesize_method (tree);
4389 extern tree lazily_declare_fn (special_function_kind,
4391 extern tree skip_artificial_parms_for (const_tree, tree);
4392 extern int num_artificial_parms_for (const_tree);
4393 extern tree make_alias_for (tree, tree);
4394 extern tree locate_copy (tree, void *);
4395 extern tree locate_ctor (tree, void *);
4396 extern tree locate_dtor (tree, void *);
4399 extern bool maybe_clone_body (tree);
4402 extern void check_template_shadow (tree);
4403 extern tree get_innermost_template_args (tree, int);
4404 extern void maybe_begin_member_template_processing (tree);
4405 extern void maybe_end_member_template_processing (void);
4406 extern tree finish_member_template_decl (tree);
4407 extern void begin_template_parm_list (void);
4408 extern bool begin_specialization (void);
4409 extern void reset_specialization (void);
4410 extern void end_specialization (void);
4411 extern void begin_explicit_instantiation (void);
4412 extern void end_explicit_instantiation (void);
4413 extern tree check_explicit_specialization (tree, tree, int, int);
4414 extern tree process_template_parm (tree, tree, bool, bool);
4415 extern tree end_template_parm_list (tree);
4416 extern void end_template_decl (void);
4417 extern bool check_default_tmpl_args (tree, tree, int, int, int);
4418 extern tree push_template_decl (tree);
4419 extern tree push_template_decl_real (tree, bool);
4420 extern bool redeclare_class_template (tree, tree);
4421 extern tree lookup_template_class (tree, tree, tree, tree,
4422 int, tsubst_flags_t);
4423 extern tree lookup_template_function (tree, tree);
4424 extern int uses_template_parms (tree);
4425 extern int uses_template_parms_level (tree, int);
4426 extern tree instantiate_class_template (tree);
4427 extern tree instantiate_template (tree, tree, tsubst_flags_t);
4428 extern int fn_type_unification (tree, tree, tree, tree,
4429 tree, unification_kind_t, int);
4430 extern void mark_decl_instantiated (tree, int);
4431 extern int more_specialized_fn (tree, tree, int);
4432 extern void do_decl_instantiation (tree, tree);
4433 extern void do_type_instantiation (tree, tree, tsubst_flags_t);
4434 extern tree instantiate_decl (tree, int, bool);
4435 extern int comp_template_parms (const_tree, const_tree);
4436 extern bool uses_parameter_packs (tree);
4437 extern bool template_parameter_pack_p (const_tree);
4438 extern tree make_pack_expansion (tree);
4439 extern bool check_for_bare_parameter_packs (tree);
4440 extern int template_class_depth (tree);
4441 extern int is_specialization_of (tree, tree);
4442 extern bool is_specialization_of_friend (tree, tree);
4443 extern int comp_template_args (tree, tree);
4444 extern tree maybe_process_partial_specialization (tree);
4445 extern tree most_specialized_instantiation (tree);
4446 extern void print_candidates (tree);
4447 extern void instantiate_pending_templates (int);
4448 extern tree tsubst_default_argument (tree, tree, tree);
4449 extern tree tsubst_copy_and_build (tree, tree, tsubst_flags_t,
4451 extern tree most_general_template (tree);
4452 extern tree get_mostly_instantiated_function_type (tree);
4453 extern int problematic_instantiation_changed (void);
4454 extern void record_last_problematic_instantiation (void);
4455 extern struct tinst_level *current_instantiation(void);
4456 extern tree maybe_get_template_decl_from_type_decl (tree);
4457 extern int processing_template_parmlist;
4458 extern bool dependent_type_p (tree);
4459 extern bool any_dependent_template_arguments_p (const_tree);
4460 extern bool dependent_template_p (tree);
4461 extern bool dependent_template_id_p (tree, tree);
4462 extern bool type_dependent_expression_p (tree);
4463 extern bool any_type_dependent_arguments_p (const_tree);
4464 extern bool value_dependent_expression_p (tree);
4465 extern bool any_value_dependent_elements_p (const_tree);
4466 extern tree resolve_typename_type (tree, bool);
4467 extern tree template_for_substitution (tree);
4468 extern tree build_non_dependent_expr (tree);
4469 extern tree build_non_dependent_args (tree);
4470 extern bool reregister_specialization (tree, tree, tree);
4471 extern tree fold_non_dependent_expr (tree);
4472 extern bool explicit_class_specialization_p (tree);
4473 extern struct tinst_level *outermost_tinst_level(void);
4476 extern void init_repo (void);
4477 extern int repo_emit_p (tree);
4478 extern bool repo_export_class_p (const_tree);
4479 extern void finish_repo (void);
4482 /* A vector of all tinfo decls that haven't been emitted yet. */
4483 extern GTY(()) VEC(tree,gc) *unemitted_tinfo_decls;
4485 extern void init_rtti_processing (void);
4486 extern tree build_typeid (tree);
4487 extern tree get_tinfo_decl (tree);
4488 extern tree get_typeid (tree);
4489 extern tree build_headof (tree);
4490 extern tree build_dynamic_cast (tree, tree);
4491 extern void emit_support_tinfos (void);
4492 extern bool emit_tinfo_decl (tree);
4495 extern bool accessible_base_p (tree, tree, bool);
4496 extern tree lookup_base (tree, tree, base_access,
4498 extern tree dcast_base_hint (tree, tree);
4499 extern int accessible_p (tree, tree, bool);
4500 extern tree lookup_field_1 (tree, tree, bool);
4501 extern tree lookup_field (tree, tree, int, bool);
4502 extern int lookup_fnfields_1 (tree, tree);
4503 extern int class_method_index_for_fn (tree, tree);
4504 extern tree lookup_fnfields (tree, tree, int);
4505 extern tree lookup_member (tree, tree, int, bool);
4506 extern int look_for_overrides (tree, tree);
4507 extern void get_pure_virtuals (tree);
4508 extern void maybe_suppress_debug_info (tree);
4509 extern void note_debug_info_needed (tree);
4510 extern void print_search_statistics (void);
4511 extern void reinit_search_statistics (void);
4512 extern tree current_scope (void);
4513 extern int at_function_scope_p (void);
4514 extern bool at_class_scope_p (void);
4515 extern bool at_namespace_scope_p (void);
4516 extern tree context_for_name_lookup (tree);
4517 extern tree lookup_conversions (tree);
4518 extern tree binfo_from_vbase (tree);
4519 extern tree binfo_for_vbase (tree, tree);
4520 extern tree look_for_overrides_here (tree, tree);
4521 #define dfs_skip_bases ((tree)1)
4522 extern tree dfs_walk_all (tree, tree (*) (tree, void *),
4523 tree (*) (tree, void *), void *);
4524 extern tree dfs_walk_once (tree, tree (*) (tree, void *),
4525 tree (*) (tree, void *), void *);
4526 extern tree binfo_via_virtual (tree, tree);
4527 extern tree build_baselink (tree, tree, tree, tree);
4528 extern tree adjust_result_of_qualified_name_lookup
4530 extern tree copied_binfo (tree, tree);
4531 extern tree original_binfo (tree, tree);
4532 extern int shared_member_p (tree);
4535 /* The representation of a deferred access check. */
4537 typedef struct deferred_access_check GTY(())
4539 /* The base class in which the declaration is referenced. */
4541 /* The declaration whose access must be checked. */
4543 /* The declaration that should be used in the error message. */
4545 } deferred_access_check;
4546 DEF_VEC_O(deferred_access_check);
4547 DEF_VEC_ALLOC_O(deferred_access_check,gc);
4549 /* in semantics.c */
4550 extern void push_deferring_access_checks (deferring_kind);
4551 extern void resume_deferring_access_checks (void);
4552 extern void stop_deferring_access_checks (void);
4553 extern void pop_deferring_access_checks (void);
4554 extern VEC (deferred_access_check,gc)* get_deferred_access_checks (void);
4555 extern void pop_to_parent_deferring_access_checks (void);
4556 extern void perform_access_checks (VEC (deferred_access_check,gc)*);
4557 extern void perform_deferred_access_checks (void);
4558 extern void perform_or_defer_access_check (tree, tree, tree);
4559 extern int stmts_are_full_exprs_p (void);
4560 extern void init_cp_semantics (void);
4561 extern tree do_poplevel (tree);
4562 extern void add_decl_expr (tree);
4563 extern tree finish_expr_stmt (tree);
4564 extern tree begin_if_stmt (void);
4565 extern void finish_if_stmt_cond (tree, tree);
4566 extern tree finish_then_clause (tree);
4567 extern void begin_else_clause (tree);
4568 extern void finish_else_clause (tree);
4569 extern void finish_if_stmt (tree);
4570 extern tree begin_while_stmt (void);
4571 extern void finish_while_stmt_cond (tree, tree);
4572 extern void finish_while_stmt (tree);
4573 extern tree begin_do_stmt (void);
4574 extern void finish_do_body (tree);
4575 extern void finish_do_stmt (tree, tree);
4576 extern tree finish_return_stmt (tree);
4577 extern tree begin_for_stmt (void);
4578 extern void finish_for_init_stmt (tree);
4579 extern void finish_for_cond (tree, tree);
4580 extern void finish_for_expr (tree, tree);
4581 extern void finish_for_stmt (tree);
4582 extern tree finish_break_stmt (void);
4583 extern tree finish_continue_stmt (void);
4584 extern tree begin_switch_stmt (void);
4585 extern void finish_switch_cond (tree, tree);
4586 extern void finish_switch_stmt (tree);
4587 extern tree finish_case_label (tree, tree);
4588 extern tree finish_goto_stmt (tree);
4589 extern tree begin_try_block (void);
4590 extern void finish_try_block (tree);
4591 extern tree begin_eh_spec_block (void);
4592 extern void finish_eh_spec_block (tree, tree);
4593 extern void finish_handler_sequence (tree);
4594 extern tree begin_function_try_block (tree *);
4595 extern void finish_function_try_block (tree);
4596 extern void finish_function_handler_sequence (tree, tree);
4597 extern void finish_cleanup_try_block (tree);
4598 extern tree begin_handler (void);
4599 extern void finish_handler_parms (tree, tree);
4600 extern void finish_handler (tree);
4601 extern void finish_cleanup (tree, tree);
4608 extern tree begin_compound_stmt (unsigned int);
4610 extern void finish_compound_stmt (tree);
4611 extern tree finish_asm_stmt (int, tree, tree, tree, tree);
4612 extern tree finish_label_stmt (tree);
4613 extern void finish_label_decl (tree);
4614 extern tree finish_parenthesized_expr (tree);
4615 extern tree finish_non_static_data_member (tree, tree, tree);
4616 extern tree begin_stmt_expr (void);
4617 extern tree finish_stmt_expr_expr (tree, tree);
4618 extern tree finish_stmt_expr (tree, bool);
4619 extern tree stmt_expr_value_expr (tree);
4620 extern tree perform_koenig_lookup (tree, tree);
4621 extern tree finish_call_expr (tree, tree, bool, bool);
4622 extern tree finish_increment_expr (tree, enum tree_code);
4623 extern tree finish_this_expr (void);
4624 extern tree finish_pseudo_destructor_expr (tree, tree, tree);
4625 extern tree finish_unary_op_expr (enum tree_code, tree);
4626 extern tree finish_compound_literal (tree, VEC(constructor_elt,gc) *);
4627 extern tree finish_fname (tree);
4628 extern void finish_translation_unit (void);
4629 extern tree finish_template_type_parm (tree, tree);
4630 extern tree finish_template_template_parm (tree, tree);
4631 extern tree begin_class_definition (tree, tree);
4632 extern void finish_template_decl (tree);
4633 extern tree finish_template_type (tree, tree, int);
4634 extern tree finish_base_specifier (tree, tree, bool);
4635 extern void finish_member_declaration (tree);
4636 extern void qualified_name_lookup_error (tree, tree, tree);
4637 extern void check_template_keyword (tree);
4638 extern tree finish_id_expression (tree, tree, tree,
4641 bool, bool, bool, bool,
4643 extern tree finish_typeof (tree);
4644 extern tree finish_offsetof (tree);
4645 extern void finish_decl_cleanup (tree, tree);
4646 extern void finish_eh_cleanup (tree);
4647 extern void emit_associated_thunks (tree);
4648 extern void finish_mem_initializers (tree);
4649 extern tree check_template_template_default_arg (tree);
4650 extern void expand_or_defer_fn (tree);
4651 extern void check_accessibility_of_qualified_id (tree, tree, tree);
4652 extern tree finish_qualified_id_expr (tree, tree, bool, bool,
4654 extern void simplify_aggr_init_expr (tree *);
4655 extern void finalize_nrv (tree *, tree, tree);
4656 extern void note_decl_for_pch (tree);
4657 extern tree finish_omp_clauses (tree);
4658 extern void finish_omp_threadprivate (tree);
4659 extern tree begin_omp_structured_block (void);
4660 extern tree finish_omp_structured_block (tree);
4661 extern tree begin_omp_parallel (void);
4662 extern tree finish_omp_parallel (tree, tree);
4663 extern tree finish_omp_for (location_t, tree, tree,
4664 tree, tree, tree, tree);
4665 extern void finish_omp_atomic (enum tree_code, tree, tree);
4666 extern void finish_omp_barrier (void);
4667 extern void finish_omp_flush (void);
4668 extern enum omp_clause_default_kind cxx_omp_predetermined_sharing (tree);
4669 extern tree cxx_omp_clause_default_ctor (tree, tree);
4670 extern tree cxx_omp_clause_copy_ctor (tree, tree, tree);
4671 extern tree cxx_omp_clause_assign_op (tree, tree, tree);
4672 extern tree cxx_omp_clause_dtor (tree, tree);
4673 extern bool cxx_omp_privatize_by_reference (const_tree);
4674 extern tree baselink_for_fns (tree);
4675 extern void finish_static_assert (tree, tree, location_t,
4677 extern tree finish_decltype_type (tree, bool);
4678 extern tree finish_trait_expr (enum cp_trait_kind, tree, tree);
4681 extern void lang_check_failed (const char *, int,
4682 const char *) ATTRIBUTE_NORETURN;
4683 extern tree stabilize_expr (tree, tree *);
4684 extern void stabilize_call (tree, tree *);
4685 extern void stabilize_aggr_init (tree, tree *);
4686 extern bool stabilize_init (tree, tree *);
4687 extern tree add_stmt_to_compound (tree, tree);
4688 extern tree cxx_maybe_build_cleanup (tree);
4689 extern void init_tree (void);
4690 extern int pod_type_p (const_tree);
4691 extern bool class_tmpl_impl_spec_p (const_tree);
4692 extern int zero_init_p (const_tree);
4693 extern tree canonical_type_variant (tree);
4694 extern tree copy_binfo (tree, tree, tree,
4696 extern int member_p (const_tree);
4697 extern cp_lvalue_kind real_lvalue_p (const_tree);
4698 extern bool builtin_valid_in_constant_expr_p (const_tree);
4699 extern tree build_min (enum tree_code, tree, ...);
4700 extern tree build_min_nt (enum tree_code, ...);
4701 extern tree build_min_non_dep (enum tree_code, tree, ...);
4702 extern tree build_min_non_dep_call_list (tree, tree, tree);
4703 extern tree build_cplus_new (tree, tree);
4704 extern tree get_target_expr (tree);
4705 extern tree build_cplus_array_type (tree, tree);
4706 extern tree hash_tree_cons (tree, tree, tree);
4707 extern tree hash_tree_chain (tree, tree);
4708 extern tree build_qualified_name (tree, tree, tree, bool);
4709 extern int is_overloaded_fn (tree);
4710 extern tree get_first_fn (tree);
4711 extern tree ovl_cons (tree, tree);
4712 extern tree build_overload (tree, tree);
4713 extern const char *cxx_printable_name (tree, int);
4714 extern tree build_exception_variant (tree, tree);
4715 extern tree bind_template_template_parm (tree, tree);
4716 extern tree array_type_nelts_total (tree);
4717 extern tree array_type_nelts_top (tree);
4718 extern tree break_out_target_exprs (tree);
4719 extern tree get_type_decl (tree);
4720 extern tree decl_namespace_context (tree);
4721 extern bool decl_anon_ns_mem_p (const_tree);
4722 extern tree lvalue_type (tree);
4723 extern tree error_type (tree);
4724 extern int varargs_function_p (const_tree);
4725 extern bool really_overloaded_fn (tree);
4726 extern bool cp_tree_equal (tree, tree);
4727 extern tree no_linkage_check (tree, bool);
4728 extern void debug_binfo (tree);
4729 extern tree build_dummy_object (tree);
4730 extern tree maybe_dummy_object (tree, tree *);
4731 extern int is_dummy_object (const_tree);
4732 extern const struct attribute_spec cxx_attribute_table[];
4733 extern tree make_ptrmem_cst (tree, tree);
4734 extern tree cp_build_type_attribute_variant (tree, tree);
4735 extern tree cp_build_reference_type (tree, bool);
4736 extern tree cp_build_qualified_type_real (tree, int, tsubst_flags_t);
4737 #define cp_build_qualified_type(TYPE, QUALS) \
4738 cp_build_qualified_type_real ((TYPE), (QUALS), tf_warning_or_error)
4739 extern special_function_kind special_function_p (const_tree);
4740 extern int count_trees (tree);
4741 extern int char_type_p (tree);
4742 extern void verify_stmt_tree (tree);
4743 extern linkage_kind decl_linkage (tree);
4744 extern tree cp_walk_subtrees (tree*, int*, walk_tree_fn,
4745 void*, struct pointer_set_t*);
4746 #define cp_walk_tree(a,b,c,d) \
4747 walk_tree_1 (a, b, c, d, cp_walk_subtrees)
4748 #define cp_walk_tree_without_duplicates(a,b,c) \
4749 walk_tree_without_duplicates_1 (a, b, c, cp_walk_subtrees)
4750 extern tree fold_if_not_in_template (tree);
4751 extern tree rvalue (tree);
4752 extern tree convert_bitfield_to_declared_type (tree);
4753 extern tree cp_save_expr (tree);
4754 extern bool cast_valid_in_integral_constant_expression_p (tree);
4757 extern int string_conv_p (const_tree, const_tree, int);
4758 extern tree cp_truthvalue_conversion (tree);
4759 extern tree condition_conversion (tree);
4760 extern tree require_complete_type (tree);
4761 extern tree complete_type (tree);
4762 extern tree complete_type_or_else (tree, tree);
4763 extern int type_unknown_p (const_tree);
4764 extern bool comp_except_specs (const_tree, const_tree, bool);
4765 extern bool comptypes (tree, tree, int);
4766 extern bool compparms (const_tree, const_tree);
4767 extern int comp_cv_qualification (const_tree, const_tree);
4768 extern int comp_cv_qual_signature (tree, tree);
4769 extern tree cxx_sizeof_or_alignof_expr (tree, enum tree_code);
4770 extern tree cxx_sizeof_or_alignof_type (tree, enum tree_code, bool);
4771 #define cxx_sizeof_nowarn(T) cxx_sizeof_or_alignof_type (T, SIZEOF_EXPR, false)
4772 extern tree inline_conversion (tree);
4773 extern tree is_bitfield_expr_with_lowered_type (const_tree);
4774 extern tree unlowered_expr_type (const_tree);
4775 extern tree decay_conversion (tree);
4776 extern tree build_class_member_access_expr (tree, tree, tree, bool);
4777 extern tree finish_class_member_access_expr (tree, tree, bool);
4778 extern tree build_x_indirect_ref (tree, const char *);
4779 extern tree build_indirect_ref (tree, const char *);
4780 extern tree build_array_ref (tree, tree);
4781 extern tree get_member_function_from_ptrfunc (tree *, tree);
4782 extern tree build_x_binary_op (enum tree_code, tree,
4783 enum tree_code, tree,
4784 enum tree_code, bool *);
4785 extern tree build_x_unary_op (enum tree_code, tree);
4786 extern tree unary_complex_lvalue (enum tree_code, tree);
4787 extern tree build_x_conditional_expr (tree, tree, tree);
4788 extern tree build_x_compound_expr_from_list (tree, const char *);
4789 extern tree build_x_compound_expr (tree, tree);
4790 extern tree build_compound_expr (tree, tree);
4791 extern tree build_static_cast (tree, tree);
4792 extern tree build_reinterpret_cast (tree, tree);
4793 extern tree build_const_cast (tree, tree);
4794 extern tree build_c_cast (tree, tree);
4795 extern tree build_x_modify_expr (tree, enum tree_code, tree);
4796 extern tree build_modify_expr (tree, enum tree_code, tree);
4797 extern tree convert_for_initialization (tree, tree, tree, int,
4798 const char *, tree, int);
4799 extern int comp_ptr_ttypes (tree, tree);
4800 extern bool comp_ptr_ttypes_const (tree, tree);
4801 extern int ptr_reasonably_similar (const_tree, const_tree);
4802 extern tree build_ptrmemfunc (tree, tree, int, bool);
4803 extern int cp_type_quals (const_tree);
4804 extern bool cp_type_readonly (const_tree);
4805 extern bool cp_has_mutable_p (const_tree);
4806 extern bool at_least_as_qualified_p (const_tree, const_tree);
4807 extern void cp_apply_type_quals_to_decl (int, tree);
4808 extern tree build_ptrmemfunc1 (tree, tree, tree);
4809 extern void expand_ptrmemfunc_cst (tree, tree *, tree *);
4810 extern tree type_after_usual_arithmetic_conversions (tree, tree);
4811 extern tree composite_pointer_type (tree, tree, tree, tree,
4813 extern tree merge_types (tree, tree);
4814 extern tree check_return_expr (tree, bool *);
4815 #define cp_build_binary_op(code, arg1, arg2) \
4816 build_binary_op(code, arg1, arg2, 1)
4817 #define cxx_sizeof(T) cxx_sizeof_or_alignof_type (T, SIZEOF_EXPR, true)
4818 extern tree build_ptrmemfunc_access_expr (tree, tree);
4819 extern tree build_address (tree);
4820 extern tree build_nop (tree, tree);
4821 extern tree non_reference (tree);
4822 extern tree lookup_anon_field (tree, tree);
4823 extern bool invalid_nonstatic_memfn_p (const_tree);
4824 extern tree convert_member_func_to_ptr (tree, tree);
4825 extern tree convert_ptrmem (tree, tree, bool, bool);
4826 extern int lvalue_or_else (const_tree, enum lvalue_use);
4827 extern int lvalue_p (const_tree);
4830 extern void require_complete_eh_spec_types (tree, tree);
4831 extern void cxx_incomplete_type_diagnostic (const_tree, const_tree, int);
4832 #undef cxx_incomplete_type_error
4833 extern void cxx_incomplete_type_error (const_tree, const_tree);
4834 #define cxx_incomplete_type_error(V,T) \
4835 (cxx_incomplete_type_diagnostic ((V), (T), 0))
4836 extern tree error_not_base_type (tree, tree);
4837 extern tree binfo_or_else (tree, tree);
4838 extern void readonly_error (tree, const char *);
4839 extern void complete_type_check_abstract (tree);
4840 extern int abstract_virtuals_error (tree, tree);
4842 extern tree store_init_value (tree, tree);
4843 extern tree digest_init (tree, tree);
4844 extern tree build_scoped_ref (tree, tree, tree *);
4845 extern tree build_x_arrow (tree);
4846 extern tree build_m_component_ref (tree, tree);
4847 extern tree build_functional_cast (tree, tree);
4848 extern tree add_exception_specifier (tree, tree, int);
4849 extern tree merge_exception_specifiers (tree, tree);
4852 extern void init_mangle (void);
4853 extern void mangle_decl (tree);
4854 extern const char *mangle_type_string (tree);
4855 extern tree mangle_typeinfo_for_type (tree);
4856 extern tree mangle_typeinfo_string_for_type (tree);
4857 extern tree mangle_vtbl_for_type (tree);
4858 extern tree mangle_vtt_for_type (tree);
4859 extern tree mangle_ctor_vtbl_for_type (tree, tree);
4860 extern tree mangle_thunk (tree, int, tree, tree);
4861 extern tree mangle_conv_op_name_for_type (tree);
4862 extern tree mangle_guard_variable (tree);
4863 extern tree mangle_ref_init_variable (tree);
4866 extern bool cp_dump_tree (void *, tree);
4868 /* In cp/cp-objcp-common.c. */
4870 extern alias_set_type cxx_get_alias_set (tree);
4871 extern bool cxx_warn_unused_global_decl (const_tree);
4872 extern tree cp_expr_size (const_tree);
4873 extern size_t cp_tree_size (enum tree_code);
4874 extern bool cp_var_mod_type_p (tree, tree);
4875 extern void cxx_initialize_diagnostics (struct diagnostic_context *);
4876 extern int cxx_types_compatible_p (tree, tree);
4877 extern void init_shadowed_var_for_decl (void);
4878 extern tree cxx_staticp (tree);
4880 /* in cp-gimplify.c */
4881 extern int cp_gimplify_expr (tree *, tree *, tree *);
4882 extern void cp_genericize (tree);
4886 /* In order for the format checking to accept the C++ front end
4887 diagnostic framework extensions, you must include this file before
4888 toplev.h, not after. We override the definition of GCC_DIAG_STYLE
4890 #undef GCC_DIAG_STYLE
4891 #define GCC_DIAG_STYLE __gcc_cxxdiag__
4892 #if GCC_VERSION >= 4001
4893 #define ATTRIBUTE_GCC_CXXDIAG(m, n) __attribute__ ((__format__ (GCC_DIAG_STYLE, m, n))) ATTRIBUTE_NONNULL(m)
4895 #define ATTRIBUTE_GCC_CXXDIAG(m, n) ATTRIBUTE_NONNULL(m)
4897 extern void cp_cpp_error (cpp_reader *, int,
4898 const char *, va_list *)
4899 ATTRIBUTE_GCC_CXXDIAG(3,0);
4901 #endif /* ! GCC_CP_TREE_H */