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+/* Definitions for C++ parsing and type checking.
+ Copyright (C) 1987-2014 Free Software Foundation, Inc.
+ Contributed by Michael Tiemann (tiemann@cygnus.com)
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+#ifndef GCC_CP_TREE_H
+#define GCC_CP_TREE_H
+
+#include "ggc.h"
+#include "function.h"
+#include "hashtab.h"
+#include "vec.h"
+
+/* In order for the format checking to accept the C++ front end
+ diagnostic framework extensions, you must include this file before
+ diagnostic-core.h, not after. We override the definition of GCC_DIAG_STYLE
+ in c-common.h. */
+#undef GCC_DIAG_STYLE
+#define GCC_DIAG_STYLE __gcc_cxxdiag__
+#if defined(GCC_DIAGNOSTIC_CORE_H) || defined (GCC_C_COMMON_H)
+#error \
+In order for the format checking to accept the C++ front end diagnostic \
+framework extensions, you must include this file before diagnostic-core.h and \
+c-common.h, not after.
+#endif
+#include "c-family/c-common.h"
+#include "diagnostic.h"
+
+#include "name-lookup.h"
+
+/* Usage of TREE_LANG_FLAG_?:
+ 0: IDENTIFIER_MARKED (IDENTIFIER_NODEs)
+ NEW_EXPR_USE_GLOBAL (in NEW_EXPR).
+ DELETE_EXPR_USE_GLOBAL (in DELETE_EXPR).
+ COMPOUND_EXPR_OVERLOADED (in COMPOUND_EXPR).
+ TREE_INDIRECT_USING (in NAMESPACE_DECL).
+ CLEANUP_P (in TRY_BLOCK)
+ AGGR_INIT_VIA_CTOR_P (in AGGR_INIT_EXPR)
+ PTRMEM_OK_P (in ADDR_EXPR, OFFSET_REF, SCOPE_REF)
+ PAREN_STRING_LITERAL (in STRING_CST)
+ DECL_GNU_TLS_P (in VAR_DECL)
+ KOENIG_LOOKUP_P (in CALL_EXPR)
+ STATEMENT_LIST_NO_SCOPE (in STATEMENT_LIST).
+ EXPR_STMT_STMT_EXPR_RESULT (in EXPR_STMT)
+ STMT_EXPR_NO_SCOPE (in STMT_EXPR)
+ BIND_EXPR_TRY_BLOCK (in BIND_EXPR)
+ TYPENAME_IS_ENUM_P (in TYPENAME_TYPE)
+ OMP_FOR_GIMPLIFYING_P (in OMP_FOR, OMP_SIMD and OMP_DISTRIBUTE)
+ BASELINK_QUALIFIED_P (in BASELINK)
+ TARGET_EXPR_IMPLICIT_P (in TARGET_EXPR)
+ TEMPLATE_PARM_PARAMETER_PACK (in TEMPLATE_PARM_INDEX)
+ ATTR_IS_DEPENDENT (in the TREE_LIST for an attribute)
+ ABI_TAG_IMPLICIT (in the TREE_LIST for the argument of abi_tag)
+ CONSTRUCTOR_IS_DIRECT_INIT (in CONSTRUCTOR)
+ LAMBDA_EXPR_CAPTURES_THIS_P (in LAMBDA_EXPR)
+ DECLTYPE_FOR_LAMBDA_CAPTURE (in DECLTYPE_TYPE)
+ VEC_INIT_EXPR_IS_CONSTEXPR (in VEC_INIT_EXPR)
+ DECL_OVERRIDE_P (in FUNCTION_DECL)
+ IMPLICIT_CONV_EXPR_DIRECT_INIT (in IMPLICIT_CONV_EXPR)
+ TRANSACTION_EXPR_IS_STMT (in TRANSACTION_EXPR)
+ CONVERT_EXPR_VBASE_PATH (in CONVERT_EXPR)
+ OVL_ARG_DEPENDENT (in OVERLOAD)
+ PACK_EXPANSION_LOCAL_P (in *_PACK_EXPANSION)
+ TINFO_RECHECK_ACCESS_P (in TEMPLATE_INFO)
+ SIZEOF_EXPR_TYPE_P (in SIZEOF_EXPR)
+ 1: IDENTIFIER_VIRTUAL_P (in IDENTIFIER_NODE)
+ TI_PENDING_TEMPLATE_FLAG.
+ TEMPLATE_PARMS_FOR_INLINE.
+ DELETE_EXPR_USE_VEC (in DELETE_EXPR).
+ (TREE_CALLS_NEW) (in _EXPR or _REF) (commented-out).
+ ICS_ELLIPSIS_FLAG (in _CONV)
+ DECL_INITIALIZED_P (in VAR_DECL)
+ TYPENAME_IS_CLASS_P (in TYPENAME_TYPE)
+ STMT_IS_FULL_EXPR_P (in _STMT)
+ TARGET_EXPR_LIST_INIT_P (in TARGET_EXPR)
+ LAMBDA_EXPR_MUTABLE_P (in LAMBDA_EXPR)
+ DECL_FINAL_P (in FUNCTION_DECL)
+ QUALIFIED_NAME_IS_TEMPLATE (in SCOPE_REF)
+ DECLTYPE_FOR_INIT_CAPTURE (in DECLTYPE_TYPE)
+ 2: IDENTIFIER_OPNAME_P (in IDENTIFIER_NODE)
+ ICS_THIS_FLAG (in _CONV)
+ DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (in VAR_DECL)
+ STATEMENT_LIST_TRY_BLOCK (in STATEMENT_LIST)
+ TYPENAME_IS_RESOLVING_P (in TYPE_NAME_TYPE)
+ TARGET_EXPR_DIRECT_INIT_P (in TARGET_EXPR)
+ FNDECL_USED_AUTO (in FUNCTION_DECL)
+ DECLTYPE_FOR_LAMBDA_PROXY (in DECLTYPE_TYPE)
+ REF_PARENTHESIZED_P (in COMPONENT_REF, SCOPE_REF)
+ 3: (TREE_REFERENCE_EXPR) (in NON_LVALUE_EXPR) (commented-out).
+ ICS_BAD_FLAG (in _CONV)
+ FN_TRY_BLOCK_P (in TRY_BLOCK)
+ IDENTIFIER_CTOR_OR_DTOR_P (in IDENTIFIER_NODE)
+ BIND_EXPR_BODY_BLOCK (in BIND_EXPR)
+ DECL_NON_TRIVIALLY_INITIALIZED_P (in VAR_DECL)
+ 4: TREE_HAS_CONSTRUCTOR (in INDIRECT_REF, SAVE_EXPR, CONSTRUCTOR,
+ or FIELD_DECL).
+ IDENTIFIER_TYPENAME_P (in IDENTIFIER_NODE)
+ DECL_TINFO_P (in VAR_DECL)
+ FUNCTION_REF_QUALIFIED (in FUNCTION_TYPE, METHOD_TYPE)
+ 5: C_IS_RESERVED_WORD (in IDENTIFIER_NODE)
+ DECL_VTABLE_OR_VTT_P (in VAR_DECL)
+ FUNCTION_RVALUE_QUALIFIED (in FUNCTION_TYPE, METHOD_TYPE)
+ 6: IDENTIFIER_REPO_CHOSEN (in IDENTIFIER_NODE)
+ DECL_CONSTRUCTION_VTABLE_P (in VAR_DECL)
+ TYPE_MARKED_P (in _TYPE)
+ RANGE_FOR_IVDEP (in RANGE_FOR_STMT)
+
+ Usage of TYPE_LANG_FLAG_?:
+ 0: TYPE_DEPENDENT_P
+ 1: TYPE_HAS_USER_CONSTRUCTOR.
+ 2: unused
+ 3: TYPE_FOR_JAVA.
+ 4: TYPE_HAS_NONTRIVIAL_DESTRUCTOR
+ 5: CLASS_TYPE_P (in RECORD_TYPE and UNION_TYPE)
+ ENUM_FIXED_UNDERLYING_TYPE_P (in ENUMERAL_TYPE)
+ AUTO_IS_DECLTYPE (in TEMPLATE_TYPE_PARM)
+ REFERENCE_VLA_OK (in REFERENCE_TYPE)
+ 6: TYPE_DEPENDENT_P_VALID
+
+ Usage of DECL_LANG_FLAG_?:
+ 0: DECL_ERROR_REPORTED (in VAR_DECL).
+ DECL_TEMPLATE_PARM_P (in PARM_DECL, CONST_DECL, TYPE_DECL, or TEMPLATE_DECL)
+ DECL_LOCAL_FUNCTION_P (in FUNCTION_DECL)
+ DECL_MUTABLE_P (in FIELD_DECL)
+ DECL_DEPENDENT_P (in USING_DECL)
+ 1: C_TYPEDEF_EXPLICITLY_SIGNED (in TYPE_DECL).
+ DECL_TEMPLATE_INSTANTIATED (in a VAR_DECL or a FUNCTION_DECL)
+ DECL_MEMBER_TEMPLATE_P (in TEMPLATE_DECL)
+ USING_DECL_TYPENAME_P (in USING_DECL)
+ DECL_VLA_CAPTURE_P (in FIELD_DECL)
+ 2: DECL_THIS_EXTERN (in VAR_DECL or FUNCTION_DECL).
+ DECL_IMPLICIT_TYPEDEF_P (in a TYPE_DECL)
+ 3: DECL_IN_AGGR_P.
+ 4: DECL_C_BIT_FIELD (in a FIELD_DECL)
+ DECL_ANON_UNION_VAR_P (in a VAR_DECL)
+ DECL_SELF_REFERENCE_P (in a TYPE_DECL)
+ DECL_INVALID_OVERRIDER_P (in a FUNCTION_DECL)
+ 5: DECL_INTERFACE_KNOWN.
+ 6: DECL_THIS_STATIC (in VAR_DECL or FUNCTION_DECL).
+ DECL_FIELD_IS_BASE (in FIELD_DECL)
+ TYPE_DECL_ALIAS_P (in TYPE_DECL)
+ 7: DECL_DEAD_FOR_LOCAL (in VAR_DECL).
+ DECL_THUNK_P (in a member FUNCTION_DECL)
+ DECL_NORMAL_CAPTURE_P (in FIELD_DECL)
+ 8: DECL_DECLARED_CONSTEXPR_P (in VAR_DECL, FUNCTION_DECL)
+
+ Usage of language-independent fields in a language-dependent manner:
+
+ TYPE_ALIAS_SET
+ This field is used by TYPENAME_TYPEs, TEMPLATE_TYPE_PARMs, and so
+ forth as a substitute for the mark bits provided in `lang_type'.
+ At present, only the six low-order bits are used.
+
+ TYPE_LANG_SLOT_1
+ For an ENUMERAL_TYPE, this is ENUM_TEMPLATE_INFO.
+ For a FUNCTION_TYPE or METHOD_TYPE, this is TYPE_RAISES_EXCEPTIONS
+
+ BINFO_VIRTUALS
+ For a binfo, this is a TREE_LIST. There is an entry for each
+ virtual function declared either in BINFO or its direct and
+ indirect primary bases.
+
+ The BV_DELTA of each node gives the amount by which to adjust the
+ `this' pointer when calling the function. If the method is an
+ overridden version of a base class method, then it is assumed
+ that, prior to adjustment, the this pointer points to an object
+ of the base class.
+
+ The BV_VCALL_INDEX of each node, if non-NULL, gives the vtable
+ index of the vcall offset for this entry.
+
+ The BV_FN is the declaration for the virtual function itself.
+
+ If BV_LOST_PRIMARY is set, it means that this entry is for a lost
+ primary virtual base and can be left null in the vtable.
+
+ BINFO_VTABLE
+ This is an expression with POINTER_TYPE that gives the value
+ to which the vptr should be initialized. Use get_vtbl_decl_for_binfo
+ to extract the VAR_DECL for the complete vtable.
+
+ DECL_VINDEX
+ This field is NULL for a non-virtual function. For a virtual
+ function, it is eventually set to an INTEGER_CST indicating the
+ index in the vtable at which this function can be found. When
+ a virtual function is declared, but before it is known what
+ function is overridden, this field is the error_mark_node.
+
+ Temporarily, it may be set to a TREE_LIST whose TREE_VALUE is
+ the virtual function this one overrides, and whose TREE_CHAIN is
+ the old DECL_VINDEX. */
+
+/* Language-specific tree checkers. */
+
+#define VAR_OR_FUNCTION_DECL_CHECK(NODE) \
+ TREE_CHECK2(NODE,VAR_DECL,FUNCTION_DECL)
+
+#define TYPE_FUNCTION_OR_TEMPLATE_DECL_CHECK(NODE) \
+ TREE_CHECK3(NODE,TYPE_DECL,TEMPLATE_DECL,FUNCTION_DECL)
+
+#define TYPE_FUNCTION_OR_TEMPLATE_DECL_P(NODE) \
+ (TREE_CODE (NODE) == TYPE_DECL || TREE_CODE (NODE) == TEMPLATE_DECL \
+ || TREE_CODE (NODE) == FUNCTION_DECL)
+
+#define VAR_FUNCTION_OR_PARM_DECL_CHECK(NODE) \
+ TREE_CHECK3(NODE,VAR_DECL,FUNCTION_DECL,PARM_DECL)
+
+#define VAR_TEMPL_TYPE_OR_FUNCTION_DECL_CHECK(NODE) \
+ TREE_CHECK4(NODE,VAR_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL)
+
+#define VAR_TEMPL_TYPE_FIELD_OR_FUNCTION_DECL_CHECK(NODE) \
+ TREE_CHECK5(NODE,VAR_DECL,FIELD_DECL,FUNCTION_DECL,TYPE_DECL,TEMPLATE_DECL)
+
+#define BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK(NODE) \
+ TREE_CHECK(NODE,BOUND_TEMPLATE_TEMPLATE_PARM)
+
+#if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
+#define THUNK_FUNCTION_CHECK(NODE) __extension__ \
+({ __typeof (NODE) const __t = (NODE); \
+ if (TREE_CODE (__t) != FUNCTION_DECL || !__t->decl_common.lang_specific \
+ || !__t->decl_common.lang_specific->u.fn.thunk_p) \
+ tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, 0); \
+ __t; })
+#else
+#define THUNK_FUNCTION_CHECK(NODE) (NODE)
+#endif
+
+/* Language-dependent contents of an identifier. */
+
+struct GTY(()) lang_identifier {
+ struct c_common_identifier c_common;
+ cxx_binding *namespace_bindings;
+ cxx_binding *bindings;
+ tree class_template_info;
+ tree label_value;
+};
+
+/* Return a typed pointer version of T if it designates a
+ C++ front-end identifier. */
+inline lang_identifier*
+identifier_p (tree t)
+{
+ if (TREE_CODE (t) == IDENTIFIER_NODE)
+ return (lang_identifier*) t;
+ return NULL;
+}
+
+/* In an IDENTIFIER_NODE, nonzero if this identifier is actually a
+ keyword. C_RID_CODE (node) is then the RID_* value of the keyword,
+ and C_RID_YYCODE is the token number wanted by Yacc. */
+
+#define C_IS_RESERVED_WORD(ID) TREE_LANG_FLAG_5 (ID)
+
+#define LANG_IDENTIFIER_CAST(NODE) \
+ ((struct lang_identifier*)IDENTIFIER_NODE_CHECK (NODE))
+
+struct GTY(()) template_parm_index_s {
+ struct tree_common common;
+ int index;
+ int level;
+ int orig_level;
+ tree decl;
+};
+typedef struct template_parm_index_s template_parm_index;
+
+struct GTY(()) ptrmem_cst {
+ struct tree_common common;
+ tree member;
+};
+typedef struct ptrmem_cst * ptrmem_cst_t;
+
+#define IDENTIFIER_GLOBAL_VALUE(NODE) \
+ namespace_binding ((NODE), global_namespace)
+#define SET_IDENTIFIER_GLOBAL_VALUE(NODE, VAL) \
+ set_namespace_binding ((NODE), global_namespace, (VAL))
+#define IDENTIFIER_NAMESPACE_VALUE(NODE) \
+ namespace_binding ((NODE), current_namespace)
+#define SET_IDENTIFIER_NAMESPACE_VALUE(NODE, VAL) \
+ set_namespace_binding ((NODE), current_namespace, (VAL))
+
+#define CLEANUP_P(NODE) TREE_LANG_FLAG_0 (TRY_BLOCK_CHECK (NODE))
+
+#define BIND_EXPR_TRY_BLOCK(NODE) \
+ TREE_LANG_FLAG_0 (BIND_EXPR_CHECK (NODE))
+
+/* Used to mark the block around the member initializers and cleanups. */
+#define BIND_EXPR_BODY_BLOCK(NODE) \
+ TREE_LANG_FLAG_3 (BIND_EXPR_CHECK (NODE))
+#define FUNCTION_NEEDS_BODY_BLOCK(NODE) \
+ (DECL_CONSTRUCTOR_P (NODE) || DECL_DESTRUCTOR_P (NODE) \
+ || LAMBDA_FUNCTION_P (NODE))
+
+#define STATEMENT_LIST_NO_SCOPE(NODE) \
+ TREE_LANG_FLAG_0 (STATEMENT_LIST_CHECK (NODE))
+#define STATEMENT_LIST_TRY_BLOCK(NODE) \
+ TREE_LANG_FLAG_2 (STATEMENT_LIST_CHECK (NODE))
+
+/* Nonzero if this statement should be considered a full-expression,
+ i.e., if temporaries created during this statement should have
+ their destructors run at the end of this statement. */
+#define STMT_IS_FULL_EXPR_P(NODE) TREE_LANG_FLAG_1 ((NODE))
+
+/* Marks the result of a statement expression. */
+#define EXPR_STMT_STMT_EXPR_RESULT(NODE) \
+ TREE_LANG_FLAG_0 (EXPR_STMT_CHECK (NODE))
+
+/* Nonzero if this statement-expression does not have an associated scope. */
+#define STMT_EXPR_NO_SCOPE(NODE) \
+ TREE_LANG_FLAG_0 (STMT_EXPR_CHECK (NODE))
+
+/* Returns nonzero iff TYPE1 and TYPE2 are the same type, in the usual
+ sense of `same'. */
+#define same_type_p(TYPE1, TYPE2) \
+ comptypes ((TYPE1), (TYPE2), COMPARE_STRICT)
+
+/* Returns nonzero iff NODE is a declaration for the global function
+ `main'. */
+#define DECL_MAIN_P(NODE) \
+ (DECL_EXTERN_C_FUNCTION_P (NODE) \
+ && DECL_NAME (NODE) != NULL_TREE \
+ && MAIN_NAME_P (DECL_NAME (NODE)) \
+ && flag_hosted)
+
+/* The overloaded FUNCTION_DECL. */
+#define OVL_FUNCTION(NODE) \
+ (((struct tree_overload*)OVERLOAD_CHECK (NODE))->function)
+#define OVL_CHAIN(NODE) TREE_CHAIN (NODE)
+/* Polymorphic access to FUNCTION and CHAIN. */
+#define OVL_CURRENT(NODE) \
+ ((TREE_CODE (NODE) == OVERLOAD) ? OVL_FUNCTION (NODE) : (NODE))
+#define OVL_NEXT(NODE) \
+ ((TREE_CODE (NODE) == OVERLOAD) ? TREE_CHAIN (NODE) : NULL_TREE)
+/* If set, this was imported in a using declaration.
+ This is not to confuse with being used somewhere, which
+ is not important for this node. */
+#define OVL_USED(NODE) TREE_USED (OVERLOAD_CHECK (NODE))
+/* If set, this OVERLOAD was created for argument-dependent lookup
+ and can be freed afterward. */
+#define OVL_ARG_DEPENDENT(NODE) TREE_LANG_FLAG_0 (OVERLOAD_CHECK (NODE))
+
+struct GTY(()) tree_overload {
+ struct tree_common common;
+ tree function;
+};
+
+/* Returns true iff NODE is a BASELINK. */
+#define BASELINK_P(NODE) \
+ (TREE_CODE (NODE) == BASELINK)
+/* The BINFO indicating the base in which lookup found the
+ BASELINK_FUNCTIONS. */
+#define BASELINK_BINFO(NODE) \
+ (((struct tree_baselink*) BASELINK_CHECK (NODE))->binfo)
+/* The functions referred to by the BASELINK; either a FUNCTION_DECL,
+ a TEMPLATE_DECL, an OVERLOAD, or a TEMPLATE_ID_EXPR. */
+#define BASELINK_FUNCTIONS(NODE) \
+ (((struct tree_baselink*) BASELINK_CHECK (NODE))->functions)
+/* The BINFO in which the search for the functions indicated by this baselink
+ began. This base is used to determine the accessibility of functions
+ selected by overload resolution. */
+#define BASELINK_ACCESS_BINFO(NODE) \
+ (((struct tree_baselink*) BASELINK_CHECK (NODE))->access_binfo)
+/* For a type-conversion operator, the BASELINK_OPTYPE indicates the type
+ to which the conversion should occur. This value is important if
+ the BASELINK_FUNCTIONS include a template conversion operator --
+ the BASELINK_OPTYPE can be used to determine what type the user
+ requested. */
+#define BASELINK_OPTYPE(NODE) \
+ (TREE_CHAIN (BASELINK_CHECK (NODE)))
+/* Nonzero if this baselink was from a qualified lookup. */
+#define BASELINK_QUALIFIED_P(NODE) \
+ TREE_LANG_FLAG_0 (BASELINK_CHECK (NODE))
+
+struct GTY(()) tree_baselink {
+ struct tree_common common;
+ tree binfo;
+ tree functions;
+ tree access_binfo;
+};
+
+/* The different kinds of ids that we encounter. */
+
+typedef enum cp_id_kind
+{
+ /* Not an id at all. */
+ CP_ID_KIND_NONE,
+ /* An unqualified-id that is not a template-id. */
+ CP_ID_KIND_UNQUALIFIED,
+ /* An unqualified-id that is a dependent name. */
+ CP_ID_KIND_UNQUALIFIED_DEPENDENT,
+ /* An unqualified template-id. */
+ CP_ID_KIND_TEMPLATE_ID,
+ /* A qualified-id. */
+ CP_ID_KIND_QUALIFIED
+} cp_id_kind;
+
+
+/* The various kinds of C++0x warnings we encounter. */
+
+typedef enum cpp0x_warn_str
+{
+ /* extended initializer lists */
+ CPP0X_INITIALIZER_LISTS,
+ /* explicit conversion operators */
+ CPP0X_EXPLICIT_CONVERSION,
+ /* variadic templates */
+ CPP0X_VARIADIC_TEMPLATES,
+ /* lambda expressions */
+ CPP0X_LAMBDA_EXPR,
+ /* C++0x auto */
+ CPP0X_AUTO,
+ /* scoped enums */
+ CPP0X_SCOPED_ENUMS,
+ /* defaulted and deleted functions */
+ CPP0X_DEFAULTED_DELETED,
+ /* inline namespaces */
+ CPP0X_INLINE_NAMESPACES,
+ /* override controls, override/final */
+ CPP0X_OVERRIDE_CONTROLS,
+ /* non-static data member initializers */
+ CPP0X_NSDMI,
+ /* user defined literals */
+ CPP0X_USER_DEFINED_LITERALS,
+ /* delegating constructors */
+ CPP0X_DELEGATING_CTORS,
+ /* inheriting constructors */
+ CPP0X_INHERITING_CTORS,
+ /* C++11 attributes */
+ CPP0X_ATTRIBUTES,
+ /* ref-qualified member functions */
+ CPP0X_REF_QUALIFIER
+} cpp0x_warn_str;
+
+/* The various kinds of operation used by composite_pointer_type. */
+
+typedef enum composite_pointer_operation
+{
+ /* comparison */
+ CPO_COMPARISON,
+ /* conversion */
+ CPO_CONVERSION,
+ /* conditional expression */
+ CPO_CONDITIONAL_EXPR
+} composite_pointer_operation;
+
+/* Possible cases of expression list used by build_x_compound_expr_from_list. */
+typedef enum expr_list_kind {
+ ELK_INIT, /* initializer */
+ ELK_MEM_INIT, /* member initializer */
+ ELK_FUNC_CAST /* functional cast */
+} expr_list_kind;
+
+/* Possible cases of implicit bad rhs conversions. */
+typedef enum impl_conv_rhs {
+ ICR_DEFAULT_ARGUMENT, /* default argument */
+ ICR_CONVERTING, /* converting */
+ ICR_INIT, /* initialization */
+ ICR_ARGPASS, /* argument passing */
+ ICR_RETURN, /* return */
+ ICR_ASSIGN /* assignment */
+} impl_conv_rhs;
+
+/* Possible cases of implicit or explicit bad conversions to void. */
+typedef enum impl_conv_void {
+ ICV_CAST, /* (explicit) conversion to void */
+ ICV_SECOND_OF_COND, /* second operand of conditional expression */
+ ICV_THIRD_OF_COND, /* third operand of conditional expression */
+ ICV_RIGHT_OF_COMMA, /* right operand of comma operator */
+ ICV_LEFT_OF_COMMA, /* left operand of comma operator */
+ ICV_STATEMENT, /* statement */
+ ICV_THIRD_IN_FOR /* for increment expression */
+} impl_conv_void;
+
+/* Possible invalid uses of an abstract class that might not have a
+ specific associated declaration. */
+typedef enum abstract_class_use {
+ ACU_UNKNOWN, /* unknown or decl provided */
+ ACU_CAST, /* cast to abstract class */
+ ACU_NEW, /* new-expression of abstract class */
+ ACU_THROW, /* throw-expression of abstract class */
+ ACU_CATCH, /* catch-parameter of abstract class */
+ ACU_ARRAY, /* array of abstract class */
+ ACU_RETURN, /* return type of abstract class */
+ ACU_PARM /* parameter type of abstract class */
+} abstract_class_use;
+
+/* Macros for access to language-specific slots in an identifier. */
+
+#define IDENTIFIER_NAMESPACE_BINDINGS(NODE) \
+ (LANG_IDENTIFIER_CAST (NODE)->namespace_bindings)
+#define IDENTIFIER_TEMPLATE(NODE) \
+ (LANG_IDENTIFIER_CAST (NODE)->class_template_info)
+
+/* The IDENTIFIER_BINDING is the innermost cxx_binding for the
+ identifier. It's PREVIOUS is the next outermost binding. Each
+ VALUE field is a DECL for the associated declaration. Thus,
+ name lookup consists simply of pulling off the node at the front
+ of the list (modulo oddities for looking up the names of types,
+ and such.) You can use SCOPE field to determine the scope
+ that bound the name. */
+#define IDENTIFIER_BINDING(NODE) \
+ (LANG_IDENTIFIER_CAST (NODE)->bindings)
+
+/* TREE_TYPE only indicates on local and class scope the current
+ type. For namespace scope, the presence of a type in any namespace
+ is indicated with global_type_node, and the real type behind must
+ be found through lookup. */
+#define IDENTIFIER_TYPE_VALUE(NODE) identifier_type_value (NODE)
+#define REAL_IDENTIFIER_TYPE_VALUE(NODE) TREE_TYPE (NODE)
+#define SET_IDENTIFIER_TYPE_VALUE(NODE,TYPE) (TREE_TYPE (NODE) = (TYPE))
+#define IDENTIFIER_HAS_TYPE_VALUE(NODE) (IDENTIFIER_TYPE_VALUE (NODE) ? 1 : 0)
+
+#define IDENTIFIER_LABEL_VALUE(NODE) \
+ (LANG_IDENTIFIER_CAST (NODE)->label_value)
+#define SET_IDENTIFIER_LABEL_VALUE(NODE, VALUE) \
+ IDENTIFIER_LABEL_VALUE (NODE) = (VALUE)
+
+/* Nonzero if this identifier is used as a virtual function name somewhere
+ (optimizes searches). */
+#define IDENTIFIER_VIRTUAL_P(NODE) TREE_LANG_FLAG_1 (NODE)
+
+/* Nonzero if this identifier is the prefix for a mangled C++ operator
+ name. */
+#define IDENTIFIER_OPNAME_P(NODE) TREE_LANG_FLAG_2 (NODE)
+
+/* Nonzero if this identifier is the name of a type-conversion
+ operator. */
+#define IDENTIFIER_TYPENAME_P(NODE) \
+ TREE_LANG_FLAG_4 (NODE)
+
+/* Nonzero if this identifier is the name of a constructor or
+ destructor. */
+#define IDENTIFIER_CTOR_OR_DTOR_P(NODE) \
+ TREE_LANG_FLAG_3 (NODE)
+
+/* True iff NAME is the DECL_ASSEMBLER_NAME for an entity with vague
+ linkage which the prelinker has assigned to this translation
+ unit. */
+#define IDENTIFIER_REPO_CHOSEN(NAME) \
+ (TREE_LANG_FLAG_6 (NAME))
+
+/* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */
+#define C_TYPE_FIELDS_READONLY(TYPE) \
+ (LANG_TYPE_CLASS_CHECK (TYPE)->fields_readonly)
+
+/* The tokens stored in the default argument. */
+
+#define DEFARG_TOKENS(NODE) \
+ (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->tokens)
+#define DEFARG_INSTANTIATIONS(NODE) \
+ (((struct tree_default_arg *)DEFAULT_ARG_CHECK (NODE))->instantiations)
+
+struct GTY (()) tree_default_arg {
+ struct tree_common common;
+ struct cp_token_cache *tokens;
+ vec<tree, va_gc> *instantiations;
+};
+
+
+#define DEFERRED_NOEXCEPT_PATTERN(NODE) \
+ (((struct tree_deferred_noexcept *)DEFERRED_NOEXCEPT_CHECK (NODE))->pattern)
+#define DEFERRED_NOEXCEPT_ARGS(NODE) \
+ (((struct tree_deferred_noexcept *)DEFERRED_NOEXCEPT_CHECK (NODE))->args)
+#define DEFERRED_NOEXCEPT_SPEC_P(NODE) \
+ ((NODE) && (TREE_PURPOSE (NODE)) \
+ && (TREE_CODE (TREE_PURPOSE (NODE)) == DEFERRED_NOEXCEPT \
+ || is_overloaded_fn (TREE_PURPOSE (NODE))))
+
+struct GTY (()) tree_deferred_noexcept {
+ struct tree_base base;
+ tree pattern;
+ tree args;
+};
+
+
+/* The condition associated with the static assertion. This must be
+ an integral constant expression. */
+#define STATIC_ASSERT_CONDITION(NODE) \
+ (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->condition)
+
+/* The message associated with the static assertion. This must be a
+ string constant, which will be emitted as an error message when the
+ static assert condition is false. */
+#define STATIC_ASSERT_MESSAGE(NODE) \
+ (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->message)
+
+/* Source location information for a static assertion. */
+#define STATIC_ASSERT_SOURCE_LOCATION(NODE) \
+ (((struct tree_static_assert *)STATIC_ASSERT_CHECK (NODE))->location)
+
+struct GTY (()) tree_static_assert {
+ struct tree_common common;
+ tree condition;
+ tree message;
+ location_t location;
+};
+
+struct GTY (()) tree_argument_pack_select {
+ struct tree_common common;
+ tree argument_pack;
+ int index;
+};
+
+/* The different kinds of traits that we encounter. */
+
+typedef enum cp_trait_kind
+{
+ CPTK_BASES,
+ CPTK_DIRECT_BASES,
+ CPTK_HAS_NOTHROW_ASSIGN,
+ CPTK_HAS_NOTHROW_CONSTRUCTOR,
+ CPTK_HAS_NOTHROW_COPY,
+ CPTK_HAS_TRIVIAL_ASSIGN,
+ CPTK_HAS_TRIVIAL_CONSTRUCTOR,
+ CPTK_HAS_TRIVIAL_COPY,
+ CPTK_HAS_TRIVIAL_DESTRUCTOR,
+ CPTK_HAS_VIRTUAL_DESTRUCTOR,
+ CPTK_IS_ABSTRACT,
+ CPTK_IS_BASE_OF,
+ CPTK_IS_CLASS,
+ CPTK_IS_CONVERTIBLE_TO,
+ CPTK_IS_EMPTY,
+ CPTK_IS_ENUM,
+ CPTK_IS_FINAL,
+ CPTK_IS_LITERAL_TYPE,
+ CPTK_IS_POD,
+ CPTK_IS_POLYMORPHIC,
+ CPTK_IS_STD_LAYOUT,
+ CPTK_IS_TRIVIAL,
+ CPTK_IS_UNION,
+ CPTK_UNDERLYING_TYPE
+} cp_trait_kind;
+
+/* The types that we are processing. */
+#define TRAIT_EXPR_TYPE1(NODE) \
+ (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type1)
+
+#define TRAIT_EXPR_TYPE2(NODE) \
+ (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->type2)
+
+/* The specific trait that we are processing. */
+#define TRAIT_EXPR_KIND(NODE) \
+ (((struct tree_trait_expr *)TRAIT_EXPR_CHECK (NODE))->kind)
+
+struct GTY (()) tree_trait_expr {
+ struct tree_common common;
+ tree type1;
+ tree type2;
+ enum cp_trait_kind kind;
+};
+
+/* Based off of TYPE_ANONYMOUS_P. */
+#define LAMBDA_TYPE_P(NODE) \
+ (CLASS_TYPE_P (NODE) && CLASSTYPE_LAMBDA_EXPR (NODE))
+
+/* Test if FUNCTION_DECL is a lambda function. */
+#define LAMBDA_FUNCTION_P(FNDECL) \
+ (DECL_OVERLOADED_OPERATOR_P (FNDECL) == CALL_EXPR \
+ && LAMBDA_TYPE_P (CP_DECL_CONTEXT (FNDECL)))
+
+enum cp_lambda_default_capture_mode_type {
+ CPLD_NONE,
+ CPLD_COPY,
+ CPLD_REFERENCE
+};
+
+/* The method of default capture, if any. */
+#define LAMBDA_EXPR_DEFAULT_CAPTURE_MODE(NODE) \
+ (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->default_capture_mode)
+
+/* The capture-list, including `this'. Each capture is stored as a FIELD_DECL
+ * so that the name, type, and field are all together, whether or not it has
+ * been added to the lambda's class type.
+ TREE_LIST:
+ TREE_PURPOSE: The FIELD_DECL for this capture.
+ TREE_VALUE: The initializer. This is part of a GNU extension. */
+#define LAMBDA_EXPR_CAPTURE_LIST(NODE) \
+ (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->capture_list)
+
+/* During parsing of the lambda-introducer, the node in the capture-list
+ that holds the 'this' capture. During parsing of the body, the
+ capture proxy for that node. */
+#define LAMBDA_EXPR_THIS_CAPTURE(NODE) \
+ (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->this_capture)
+
+/* Predicate tracking whether `this' is in the effective capture set. */
+#define LAMBDA_EXPR_CAPTURES_THIS_P(NODE) \
+ LAMBDA_EXPR_THIS_CAPTURE(NODE)
+
+/* Predicate tracking whether the lambda was declared 'mutable'. */
+#define LAMBDA_EXPR_MUTABLE_P(NODE) \
+ TREE_LANG_FLAG_1 (LAMBDA_EXPR_CHECK (NODE))
+
+/* The return type in the expression.
+ * NULL_TREE indicates that none was specified. */
+#define LAMBDA_EXPR_RETURN_TYPE(NODE) \
+ (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->return_type)
+
+/* The source location of the lambda. */
+#define LAMBDA_EXPR_LOCATION(NODE) \
+ (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->locus)
+
+/* The mangling scope for the lambda: FUNCTION_DECL, PARM_DECL, VAR_DECL,
+ FIELD_DECL or NULL_TREE. If this is NULL_TREE, we have no linkage. */
+#define LAMBDA_EXPR_EXTRA_SCOPE(NODE) \
+ (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->extra_scope)
+
+/* If EXTRA_SCOPE, this is the number of the lambda within that scope. */
+#define LAMBDA_EXPR_DISCRIMINATOR(NODE) \
+ (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->discriminator)
+
+/* During parsing of the lambda, a vector of capture proxies which need
+ to be pushed once we're done processing a nested lambda. */
+#define LAMBDA_EXPR_PENDING_PROXIES(NODE) \
+ (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->pending_proxies)
+
+/* The closure type of the lambda. Note that the TREE_TYPE of a
+ LAMBDA_EXPR is always NULL_TREE, because we need to instantiate the
+ LAMBDA_EXPR in order to instantiate the type. */
+#define LAMBDA_EXPR_CLOSURE(NODE) \
+ (((struct tree_lambda_expr *)LAMBDA_EXPR_CHECK (NODE))->closure)
+
+struct GTY (()) tree_lambda_expr
+{
+ struct tree_typed typed;
+ tree capture_list;
+ tree this_capture;
+ tree return_type;
+ tree extra_scope;
+ tree closure;
+ vec<tree, va_gc> *pending_proxies;
+ location_t locus;
+ enum cp_lambda_default_capture_mode_type default_capture_mode;
+ int discriminator;
+};
+
+/* A (typedef,context,usage location) triplet.
+ It represents a typedef used through a
+ context at a given source location.
+ e.g.
+ struct foo {
+ typedef int myint;
+ };
+
+ struct bar {
+ foo::myint v; // #1<-- this location.
+ };
+
+ In bar, the triplet will be (myint, foo, #1).
+ */
+struct GTY(()) qualified_typedef_usage_s {
+ tree typedef_decl;
+ tree context;
+ location_t locus;
+};
+typedef struct qualified_typedef_usage_s qualified_typedef_usage_t;
+
+/* Non-zero if this template specialization has access violations that
+ should be rechecked when the function is instantiated outside argument
+ deduction. */
+#define TINFO_HAS_ACCESS_ERRORS(NODE) \
+ (TREE_LANG_FLAG_0 (TEMPLATE_INFO_CHECK (NODE)))
+#define FNDECL_HAS_ACCESS_ERRORS(NODE) \
+ (TINFO_HAS_ACCESS_ERRORS (DECL_TEMPLATE_INFO (NODE)))
+
+struct GTY(()) tree_template_info {
+ struct tree_common common;
+ vec<qualified_typedef_usage_t, va_gc> *typedefs_needing_access_checking;
+};
+
+enum cp_tree_node_structure_enum {
+ TS_CP_GENERIC,
+ TS_CP_IDENTIFIER,
+ TS_CP_TPI,
+ TS_CP_PTRMEM,
+ TS_CP_BINDING,
+ TS_CP_OVERLOAD,
+ TS_CP_BASELINK,
+ TS_CP_WRAPPER,
+ TS_CP_DEFAULT_ARG,
+ TS_CP_DEFERRED_NOEXCEPT,
+ TS_CP_STATIC_ASSERT,
+ TS_CP_ARGUMENT_PACK_SELECT,
+ TS_CP_TRAIT_EXPR,
+ TS_CP_LAMBDA_EXPR,
+ TS_CP_TEMPLATE_INFO,
+ TS_CP_USERDEF_LITERAL,
+ LAST_TS_CP_ENUM
+};
+
+/* The resulting tree type. */
+union GTY((desc ("cp_tree_node_structure (&%h)"),
+ chain_next ("(union lang_tree_node *) c_tree_chain_next (&%h.generic)"))) lang_tree_node {
+ union tree_node GTY ((tag ("TS_CP_GENERIC"),
+ desc ("tree_node_structure (&%h)"))) generic;
+ struct template_parm_index_s GTY ((tag ("TS_CP_TPI"))) tpi;
+ struct ptrmem_cst GTY ((tag ("TS_CP_PTRMEM"))) ptrmem;
+ struct tree_overload GTY ((tag ("TS_CP_OVERLOAD"))) overload;
+ struct tree_baselink GTY ((tag ("TS_CP_BASELINK"))) baselink;
+ struct tree_default_arg GTY ((tag ("TS_CP_DEFAULT_ARG"))) default_arg;
+ struct tree_deferred_noexcept GTY ((tag ("TS_CP_DEFERRED_NOEXCEPT"))) deferred_noexcept;
+ struct lang_identifier GTY ((tag ("TS_CP_IDENTIFIER"))) identifier;
+ struct tree_static_assert GTY ((tag ("TS_CP_STATIC_ASSERT")))
+ static_assertion;
+ struct tree_argument_pack_select GTY ((tag ("TS_CP_ARGUMENT_PACK_SELECT")))
+ argument_pack_select;
+ struct tree_trait_expr GTY ((tag ("TS_CP_TRAIT_EXPR")))
+ trait_expression;
+ struct tree_lambda_expr GTY ((tag ("TS_CP_LAMBDA_EXPR")))
+ lambda_expression;
+ struct tree_template_info GTY ((tag ("TS_CP_TEMPLATE_INFO")))
+ template_info;
+ struct tree_userdef_literal GTY ((tag ("TS_CP_USERDEF_LITERAL")))
+ userdef_literal;
+};
+
+
+enum cp_tree_index
+{
+ CPTI_JAVA_BYTE_TYPE,
+ CPTI_JAVA_SHORT_TYPE,
+ CPTI_JAVA_INT_TYPE,
+ CPTI_JAVA_LONG_TYPE,
+ CPTI_JAVA_FLOAT_TYPE,
+ CPTI_JAVA_DOUBLE_TYPE,
+ CPTI_JAVA_CHAR_TYPE,
+ CPTI_JAVA_BOOLEAN_TYPE,
+
+ CPTI_WCHAR_DECL,
+ CPTI_VTABLE_ENTRY_TYPE,
+ CPTI_DELTA_TYPE,
+ CPTI_VTABLE_INDEX_TYPE,
+ CPTI_CLEANUP_TYPE,
+ CPTI_VTT_PARM_TYPE,
+
+ CPTI_CLASS_TYPE,
+ CPTI_UNKNOWN_TYPE,
+ CPTI_INIT_LIST_TYPE,
+ CPTI_VTBL_TYPE,
+ CPTI_VTBL_PTR_TYPE,
+ CPTI_STD,
+ CPTI_ABI,
+ CPTI_CONST_TYPE_INFO_TYPE,
+ CPTI_TYPE_INFO_PTR_TYPE,
+ CPTI_ABORT_FNDECL,
+ CPTI_GLOBAL_DELETE_FNDECL,
+ CPTI_AGGR_TAG,
+
+ CPTI_CTOR_IDENTIFIER,
+ CPTI_COMPLETE_CTOR_IDENTIFIER,
+ CPTI_BASE_CTOR_IDENTIFIER,
+ CPTI_DTOR_IDENTIFIER,
+ CPTI_COMPLETE_DTOR_IDENTIFIER,
+ CPTI_BASE_DTOR_IDENTIFIER,
+ CPTI_DELETING_DTOR_IDENTIFIER,
+ CPTI_DELTA_IDENTIFIER,
+ CPTI_IN_CHARGE_IDENTIFIER,
+ CPTI_VTT_PARM_IDENTIFIER,
+ CPTI_NELTS_IDENTIFIER,
+ CPTI_THIS_IDENTIFIER,
+ CPTI_PFN_IDENTIFIER,
+ CPTI_VPTR_IDENTIFIER,
+ CPTI_STD_IDENTIFIER,
+
+ CPTI_LANG_NAME_C,
+ CPTI_LANG_NAME_CPLUSPLUS,
+ CPTI_LANG_NAME_JAVA,
+
+ CPTI_EMPTY_EXCEPT_SPEC,
+ CPTI_NOEXCEPT_TRUE_SPEC,
+ CPTI_NOEXCEPT_FALSE_SPEC,
+ CPTI_JCLASS,
+ CPTI_TERMINATE,
+ CPTI_CALL_UNEXPECTED,
+ CPTI_ATEXIT_FN_PTR_TYPE,
+ CPTI_ATEXIT,
+ CPTI_DSO_HANDLE,
+ CPTI_DCAST,
+
+ CPTI_KEYED_CLASSES,
+
+ CPTI_NULLPTR,
+ CPTI_NULLPTR_TYPE,
+
+ CPTI_MAX
+};
+
+extern GTY(()) tree cp_global_trees[CPTI_MAX];
+
+#define java_byte_type_node cp_global_trees[CPTI_JAVA_BYTE_TYPE]
+#define java_short_type_node cp_global_trees[CPTI_JAVA_SHORT_TYPE]
+#define java_int_type_node cp_global_trees[CPTI_JAVA_INT_TYPE]
+#define java_long_type_node cp_global_trees[CPTI_JAVA_LONG_TYPE]
+#define java_float_type_node cp_global_trees[CPTI_JAVA_FLOAT_TYPE]
+#define java_double_type_node cp_global_trees[CPTI_JAVA_DOUBLE_TYPE]
+#define java_char_type_node cp_global_trees[CPTI_JAVA_CHAR_TYPE]
+#define java_boolean_type_node cp_global_trees[CPTI_JAVA_BOOLEAN_TYPE]
+
+#define wchar_decl_node cp_global_trees[CPTI_WCHAR_DECL]
+#define vtable_entry_type cp_global_trees[CPTI_VTABLE_ENTRY_TYPE]
+/* The type used to represent an offset by which to adjust the `this'
+ pointer in pointer-to-member types. */
+#define delta_type_node cp_global_trees[CPTI_DELTA_TYPE]
+/* The type used to represent an index into the vtable. */
+#define vtable_index_type cp_global_trees[CPTI_VTABLE_INDEX_TYPE]
+
+#define class_type_node cp_global_trees[CPTI_CLASS_TYPE]
+#define unknown_type_node cp_global_trees[CPTI_UNKNOWN_TYPE]
+#define init_list_type_node cp_global_trees[CPTI_INIT_LIST_TYPE]
+#define vtbl_type_node cp_global_trees[CPTI_VTBL_TYPE]
+#define vtbl_ptr_type_node cp_global_trees[CPTI_VTBL_PTR_TYPE]
+#define std_node cp_global_trees[CPTI_STD]
+#define abi_node cp_global_trees[CPTI_ABI]
+#define const_type_info_type_node cp_global_trees[CPTI_CONST_TYPE_INFO_TYPE]
+#define type_info_ptr_type cp_global_trees[CPTI_TYPE_INFO_PTR_TYPE]
+#define abort_fndecl cp_global_trees[CPTI_ABORT_FNDECL]
+#define global_delete_fndecl cp_global_trees[CPTI_GLOBAL_DELETE_FNDECL]
+#define current_aggr cp_global_trees[CPTI_AGGR_TAG]
+#define nullptr_node cp_global_trees[CPTI_NULLPTR]
+#define nullptr_type_node cp_global_trees[CPTI_NULLPTR_TYPE]
+
+/* We cache these tree nodes so as to call get_identifier less
+ frequently. */
+
+/* The name of a constructor that takes an in-charge parameter to
+ decide whether or not to construct virtual base classes. */
+#define ctor_identifier cp_global_trees[CPTI_CTOR_IDENTIFIER]
+/* The name of a constructor that constructs virtual base classes. */
+#define complete_ctor_identifier cp_global_trees[CPTI_COMPLETE_CTOR_IDENTIFIER]
+/* The name of a constructor that does not construct virtual base classes. */
+#define base_ctor_identifier cp_global_trees[CPTI_BASE_CTOR_IDENTIFIER]
+/* The name of a destructor that takes an in-charge parameter to
+ decide whether or not to destroy virtual base classes and whether
+ or not to delete the object. */
+#define dtor_identifier cp_global_trees[CPTI_DTOR_IDENTIFIER]
+/* The name of a destructor that destroys virtual base classes. */
+#define complete_dtor_identifier cp_global_trees[CPTI_COMPLETE_DTOR_IDENTIFIER]
+/* The name of a destructor that does not destroy virtual base
+ classes. */
+#define base_dtor_identifier cp_global_trees[CPTI_BASE_DTOR_IDENTIFIER]
+/* The name of a destructor that destroys virtual base classes, and
+ then deletes the entire object. */
+#define deleting_dtor_identifier cp_global_trees[CPTI_DELETING_DTOR_IDENTIFIER]
+#define delta_identifier cp_global_trees[CPTI_DELTA_IDENTIFIER]
+#define in_charge_identifier cp_global_trees[CPTI_IN_CHARGE_IDENTIFIER]
+/* The name of the parameter that contains a pointer to the VTT to use
+ for this subobject constructor or destructor. */
+#define vtt_parm_identifier cp_global_trees[CPTI_VTT_PARM_IDENTIFIER]
+#define nelts_identifier cp_global_trees[CPTI_NELTS_IDENTIFIER]
+#define this_identifier cp_global_trees[CPTI_THIS_IDENTIFIER]
+#define pfn_identifier cp_global_trees[CPTI_PFN_IDENTIFIER]
+#define vptr_identifier cp_global_trees[CPTI_VPTR_IDENTIFIER]
+/* The name of the std namespace. */
+#define std_identifier cp_global_trees[CPTI_STD_IDENTIFIER]
+#define lang_name_c cp_global_trees[CPTI_LANG_NAME_C]
+#define lang_name_cplusplus cp_global_trees[CPTI_LANG_NAME_CPLUSPLUS]
+#define lang_name_java cp_global_trees[CPTI_LANG_NAME_JAVA]
+
+/* Exception specifier used for throw(). */
+#define empty_except_spec cp_global_trees[CPTI_EMPTY_EXCEPT_SPEC]
+#define noexcept_true_spec cp_global_trees[CPTI_NOEXCEPT_TRUE_SPEC]
+#define noexcept_false_spec cp_global_trees[CPTI_NOEXCEPT_FALSE_SPEC]
+
+/* If non-NULL, a POINTER_TYPE equivalent to (java::lang::Class*). */
+#define jclass_node cp_global_trees[CPTI_JCLASS]
+
+/* The declaration for `std::terminate'. */
+#define terminate_node cp_global_trees[CPTI_TERMINATE]
+
+/* The declaration for "__cxa_call_unexpected". */
+#define call_unexpected_node cp_global_trees[CPTI_CALL_UNEXPECTED]
+
+/* The type of the function-pointer argument to "__cxa_atexit" (or
+ "std::atexit", if "__cxa_atexit" is not being used). */
+#define atexit_fn_ptr_type_node cp_global_trees[CPTI_ATEXIT_FN_PTR_TYPE]
+
+/* A pointer to `std::atexit'. */
+#define atexit_node cp_global_trees[CPTI_ATEXIT]
+
+/* A pointer to `__dso_handle'. */
+#define dso_handle_node cp_global_trees[CPTI_DSO_HANDLE]
+
+/* The declaration of the dynamic_cast runtime. */
+#define dynamic_cast_node cp_global_trees[CPTI_DCAST]
+
+/* The type of a destructor. */
+#define cleanup_type cp_global_trees[CPTI_CLEANUP_TYPE]
+
+/* The type of the vtt parameter passed to subobject constructors and
+ destructors. */
+#define vtt_parm_type cp_global_trees[CPTI_VTT_PARM_TYPE]
+
+/* A TREE_LIST of the dynamic classes whose vtables may have to be
+ emitted in this translation unit. */
+
+#define keyed_classes cp_global_trees[CPTI_KEYED_CLASSES]
+
+/* Node to indicate default access. This must be distinct from the
+ access nodes in tree.h. */
+
+#define access_default_node null_node
+
+/* Global state. */
+
+struct GTY(()) saved_scope {
+ vec<cxx_saved_binding, va_gc> *old_bindings;
+ tree old_namespace;
+ vec<tree, va_gc> *decl_ns_list;
+ tree class_name;
+ tree class_type;
+ tree access_specifier;
+ tree function_decl;
+ vec<tree, va_gc> *lang_base;
+ tree lang_name;
+ tree template_parms;
+ cp_binding_level *x_previous_class_level;
+ tree x_saved_tree;
+
+ /* Only used for uses of this in trailing return type. */
+ tree x_current_class_ptr;
+ tree x_current_class_ref;
+
+ int x_processing_template_decl;
+ int x_processing_specialization;
+ BOOL_BITFIELD x_processing_explicit_instantiation : 1;
+ BOOL_BITFIELD need_pop_function_context : 1;
+
+ int unevaluated_operand;
+ int inhibit_evaluation_warnings;
+ /* If non-zero, implicit "omp declare target" attribute is added into the
+ attribute lists. */
+ int omp_declare_target_attribute;
+
+ struct stmt_tree_s x_stmt_tree;
+
+ cp_binding_level *class_bindings;
+ cp_binding_level *bindings;
+
+ struct pointer_map_t *x_local_specializations;
+
+ struct saved_scope *prev;
+};
+
+/* The current open namespace. */
+
+#define current_namespace scope_chain->old_namespace
+
+/* The stack for namespaces of current declarations. */
+
+#define decl_namespace_list scope_chain->decl_ns_list
+
+/* IDENTIFIER_NODE: name of current class */
+
+#define current_class_name scope_chain->class_name
+
+/* _TYPE: the type of the current class */
+
+#define current_class_type scope_chain->class_type
+
+/* When parsing a class definition, the access specifier most recently
+ given by the user, or, if no access specifier was given, the
+ default value appropriate for the kind of class (i.e., struct,
+ class, or union). */
+
+#define current_access_specifier scope_chain->access_specifier
+
+/* Pointer to the top of the language name stack. */
+
+#define current_lang_base scope_chain->lang_base
+#define current_lang_name scope_chain->lang_name
+
+/* When parsing a template declaration, a TREE_LIST represents the
+ active template parameters. Each node in the list represents one
+ level of template parameters. The innermost level is first in the
+ list. The depth of each level is stored as an INTEGER_CST in the
+ TREE_PURPOSE of each node. The parameters for that level are
+ stored in the TREE_VALUE. */
+
+#define current_template_parms scope_chain->template_parms
+
+#define processing_template_decl scope_chain->x_processing_template_decl
+#define processing_specialization scope_chain->x_processing_specialization
+#define processing_explicit_instantiation scope_chain->x_processing_explicit_instantiation
+
+/* The cached class binding level, from the most recently exited
+ class, or NULL if none. */
+
+#define previous_class_level scope_chain->x_previous_class_level
+
+/* A map from local variable declarations in the body of the template
+ presently being instantiated to the corresponding instantiated
+ local variables. */
+
+#define local_specializations scope_chain->x_local_specializations
+
+/* A list of private types mentioned, for deferred access checking. */
+
+extern GTY(()) struct saved_scope *scope_chain;
+
+struct GTY(()) cxx_int_tree_map {
+ unsigned int uid;
+ tree to;
+};
+
+extern unsigned int cxx_int_tree_map_hash (const void *);
+extern int cxx_int_tree_map_eq (const void *, const void *);
+
+/* Global state pertinent to the current function. */
+
+struct GTY(()) language_function {
+ struct c_language_function base;
+
+ tree x_cdtor_label;
+ tree x_current_class_ptr;
+ tree x_current_class_ref;
+ tree x_eh_spec_block;
+ tree x_in_charge_parm;
+ tree x_vtt_parm;
+ tree x_return_value;
+ tree x_auto_return_pattern;
+
+ BOOL_BITFIELD returns_value : 1;
+ BOOL_BITFIELD returns_null : 1;
+ BOOL_BITFIELD returns_abnormally : 1;
+ BOOL_BITFIELD infinite_loop: 1;
+ BOOL_BITFIELD x_in_function_try_handler : 1;
+ BOOL_BITFIELD x_in_base_initializer : 1;
+
+ /* True if this function can throw an exception. */
+ BOOL_BITFIELD can_throw : 1;
+
+ htab_t GTY((param_is(struct named_label_entry))) x_named_labels;
+ cp_binding_level *bindings;
+ vec<tree, va_gc> *x_local_names;
+ /* Tracking possibly infinite loops. This is a vec<tree> only because
+ vec<bool> doesn't work with gtype. */
+ vec<tree, va_gc> *infinite_loops;
+ htab_t GTY((param_is (struct cxx_int_tree_map))) extern_decl_map;
+};
+
+/* The current C++-specific per-function global variables. */
+
+#define cp_function_chain (cfun->language)
+
+/* In a constructor destructor, the point at which all derived class
+ destroying/construction has been done. I.e., just before a
+ constructor returns, or before any base class destroying will be done
+ in a destructor. */
+
+#define cdtor_label cp_function_chain->x_cdtor_label
+
+/* When we're processing a member function, current_class_ptr is the
+ PARM_DECL for the `this' pointer. The current_class_ref is an
+ expression for `*this'. */
+
+#define current_class_ptr \
+ (*(cfun && cp_function_chain \
+ ? &cp_function_chain->x_current_class_ptr \
+ : &scope_chain->x_current_class_ptr))
+#define current_class_ref \
+ (*(cfun && cp_function_chain \
+ ? &cp_function_chain->x_current_class_ref \
+ : &scope_chain->x_current_class_ref))
+
+/* The EH_SPEC_BLOCK for the exception-specifiers for the current
+ function, if any. */
+
+#define current_eh_spec_block cp_function_chain->x_eh_spec_block
+
+/* The `__in_chrg' parameter for the current function. Only used for
+ constructors and destructors. */
+
+#define current_in_charge_parm cp_function_chain->x_in_charge_parm
+
+/* The `__vtt_parm' parameter for the current function. Only used for
+ constructors and destructors. */
+
+#define current_vtt_parm cp_function_chain->x_vtt_parm
+
+/* Set to 0 at beginning of a function definition, set to 1 if
+ a return statement that specifies a return value is seen. */
+
+#define current_function_returns_value cp_function_chain->returns_value
+
+/* Set to 0 at beginning of a function definition, set to 1 if
+ a return statement with no argument is seen. */
+
+#define current_function_returns_null cp_function_chain->returns_null
+
+/* Set to 0 at beginning of a function definition, set to 1 if
+ a call to a noreturn function is seen. */
+
+#define current_function_returns_abnormally \
+ cp_function_chain->returns_abnormally
+
+/* Set to 0 at beginning of a function definition, set to 1 if we see an
+ obvious infinite loop. This can have false positives and false
+ negatives, so it should only be used as a heuristic. */
+
+#define current_function_infinite_loop cp_function_chain->infinite_loop
+
+/* Nonzero if we are processing a base initializer. Zero elsewhere. */
+#define in_base_initializer cp_function_chain->x_in_base_initializer
+
+#define in_function_try_handler cp_function_chain->x_in_function_try_handler
+
+/* Expression always returned from function, or error_mark_node
+ otherwise, for use by the automatic named return value optimization. */
+
+#define current_function_return_value \
+ (cp_function_chain->x_return_value)
+
+/* A type involving 'auto' to be used for return type deduction. */
+
+#define current_function_auto_return_pattern \
+ (cp_function_chain->x_auto_return_pattern)
+
+/* True if NAME is the IDENTIFIER_NODE for an overloaded "operator
+ new" or "operator delete". */
+#define NEW_DELETE_OPNAME_P(NAME) \
+ ((NAME) == ansi_opname (NEW_EXPR) \
+ || (NAME) == ansi_opname (VEC_NEW_EXPR) \
+ || (NAME) == ansi_opname (DELETE_EXPR) \
+ || (NAME) == ansi_opname (VEC_DELETE_EXPR))
+
+#define ansi_opname(CODE) \
+ (operator_name_info[(int) (CODE)].identifier)
+#define ansi_assopname(CODE) \
+ (assignment_operator_name_info[(int) (CODE)].identifier)
+
+/* TRUE if a tree code represents a statement. */
+extern bool statement_code_p[MAX_TREE_CODES];
+
+#define STATEMENT_CODE_P(CODE) statement_code_p[(int) (CODE)]
+
+enum languages { lang_c, lang_cplusplus, lang_java };
+
+/* Macros to make error reporting functions' lives easier. */
+#define TYPE_IDENTIFIER(NODE) (DECL_NAME (TYPE_NAME (NODE)))
+#define TYPE_LINKAGE_IDENTIFIER(NODE) \
+ (TYPE_IDENTIFIER (TYPE_MAIN_VARIANT (NODE)))
+#define TYPE_NAME_STRING(NODE) (IDENTIFIER_POINTER (TYPE_IDENTIFIER (NODE)))
+#define TYPE_NAME_LENGTH(NODE) (IDENTIFIER_LENGTH (TYPE_IDENTIFIER (NODE)))
+
+/* Nonzero if NODE has no name for linkage purposes. */
+#define TYPE_ANONYMOUS_P(NODE) \
+ (OVERLOAD_TYPE_P (NODE) && ANON_AGGRNAME_P (TYPE_LINKAGE_IDENTIFIER (NODE)))
+
+/* The _DECL for this _TYPE. */
+#define TYPE_MAIN_DECL(NODE) (TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE)))
+
+/* Nonzero if T is a type that could resolve to any kind of concrete type
+ at instantiation time. */
+#define WILDCARD_TYPE_P(T) \
+ (TREE_CODE (T) == TEMPLATE_TYPE_PARM \
+ || TREE_CODE (T) == TYPENAME_TYPE \
+ || TREE_CODE (T) == TYPEOF_TYPE \
+ || TREE_CODE (T) == BOUND_TEMPLATE_TEMPLATE_PARM \
+ || TREE_CODE (T) == DECLTYPE_TYPE)
+
+/* Nonzero if T is a class (or struct or union) type. Also nonzero
+ for template type parameters, typename types, and instantiated
+ template template parameters. Keep these checks in ascending code
+ order. */
+#define MAYBE_CLASS_TYPE_P(T) (WILDCARD_TYPE_P (T) || CLASS_TYPE_P (T))
+
+/* Set CLASS_TYPE_P for T to VAL. T must be a class, struct, or
+ union type. */
+#define SET_CLASS_TYPE_P(T, VAL) \
+ (TYPE_LANG_FLAG_5 (T) = (VAL))
+
+/* Nonzero if T is a class type. Zero for template type parameters,
+ typename types, and so forth. */
+#define CLASS_TYPE_P(T) \
+ (RECORD_OR_UNION_CODE_P (TREE_CODE (T)) && TYPE_LANG_FLAG_5 (T))
+
+/* Nonzero if T is a class type but not an union. */
+#define NON_UNION_CLASS_TYPE_P(T) \
+ (CLASS_TYPE_P (T) && TREE_CODE (T) != UNION_TYPE)
+
+/* Keep these checks in ascending code order. */
+#define RECORD_OR_UNION_CODE_P(T) \
+ ((T) == RECORD_TYPE || (T) == UNION_TYPE)
+#define OVERLOAD_TYPE_P(T) \
+ (CLASS_TYPE_P (T) || TREE_CODE (T) == ENUMERAL_TYPE)
+
+/* True if this a "Java" type, defined in 'extern "Java"'. */
+#define TYPE_FOR_JAVA(NODE) TYPE_LANG_FLAG_3 (NODE)
+
+/* True if this type is dependent. This predicate is only valid if
+ TYPE_DEPENDENT_P_VALID is true. */
+#define TYPE_DEPENDENT_P(NODE) TYPE_LANG_FLAG_0 (NODE)
+
+/* True if dependent_type_p has been called for this type, with the
+ result that TYPE_DEPENDENT_P is valid. */
+#define TYPE_DEPENDENT_P_VALID(NODE) TYPE_LANG_FLAG_6(NODE)
+
+/* Nonzero if this type is const-qualified. */
+#define CP_TYPE_CONST_P(NODE) \
+ ((cp_type_quals (NODE) & TYPE_QUAL_CONST) != 0)
+
+/* Nonzero if this type is volatile-qualified. */
+#define CP_TYPE_VOLATILE_P(NODE) \
+ ((cp_type_quals (NODE) & TYPE_QUAL_VOLATILE) != 0)
+
+/* Nonzero if this type is restrict-qualified. */
+#define CP_TYPE_RESTRICT_P(NODE) \
+ ((cp_type_quals (NODE) & TYPE_QUAL_RESTRICT) != 0)
+
+/* Nonzero if this type is const-qualified, but not
+ volatile-qualified. Other qualifiers are ignored. This macro is
+ used to test whether or not it is OK to bind an rvalue to a
+ reference. */
+#define CP_TYPE_CONST_NON_VOLATILE_P(NODE) \
+ ((cp_type_quals (NODE) & (TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE)) \
+ == TYPE_QUAL_CONST)
+
+#define FUNCTION_ARG_CHAIN(NODE) \
+ TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (NODE)))
+
+/* Given a FUNCTION_DECL, returns the first TREE_LIST out of TYPE_ARG_TYPES
+ which refers to a user-written parameter. */
+#define FUNCTION_FIRST_USER_PARMTYPE(NODE) \
+ skip_artificial_parms_for ((NODE), TYPE_ARG_TYPES (TREE_TYPE (NODE)))
+
+/* Similarly, but for DECL_ARGUMENTS. */
+#define FUNCTION_FIRST_USER_PARM(NODE) \
+ skip_artificial_parms_for ((NODE), DECL_ARGUMENTS (NODE))
+
+/* Nonzero iff TYPE is derived from PARENT. Ignores accessibility and
+ ambiguity issues. */
+#define DERIVED_FROM_P(PARENT, TYPE) \
+ (lookup_base ((TYPE), (PARENT), ba_any, NULL, tf_none) != NULL_TREE)
+
+/* Gives the visibility specification for a class type. */
+#define CLASSTYPE_VISIBILITY(TYPE) \
+ DECL_VISIBILITY (TYPE_MAIN_DECL (TYPE))
+#define CLASSTYPE_VISIBILITY_SPECIFIED(TYPE) \
+ DECL_VISIBILITY_SPECIFIED (TYPE_MAIN_DECL (TYPE))
+
+typedef struct GTY (()) tree_pair_s {
+ tree purpose;
+ tree value;
+} tree_pair_s;
+typedef tree_pair_s *tree_pair_p;
+
+/* This is a few header flags for 'struct lang_type'. Actually,
+ all but the first are used only for lang_type_class; they
+ are put in this structure to save space. */
+struct GTY(()) lang_type_header {
+ BOOL_BITFIELD is_lang_type_class : 1;
+
+ BOOL_BITFIELD has_type_conversion : 1;
+ BOOL_BITFIELD has_copy_ctor : 1;
+ BOOL_BITFIELD has_default_ctor : 1;
+ BOOL_BITFIELD const_needs_init : 1;
+ BOOL_BITFIELD ref_needs_init : 1;
+ BOOL_BITFIELD has_const_copy_assign : 1;
+
+ BOOL_BITFIELD spare : 1;
+};
+
+/* This structure provides additional information above and beyond
+ what is provide in the ordinary tree_type. In the past, we used it
+ for the types of class types, template parameters types, typename
+ types, and so forth. However, there can be many (tens to hundreds
+ of thousands) of template parameter types in a compilation, and
+ there's no need for this additional information in that case.
+ Therefore, we now use this data structure only for class types.
+
+ In the past, it was thought that there would be relatively few
+ class types. However, in the presence of heavy use of templates,
+ many (i.e., thousands) of classes can easily be generated.
+ Therefore, we should endeavor to keep the size of this structure to
+ a minimum. */
+struct GTY(()) lang_type_class {
+ struct lang_type_header h;
+
+ unsigned char align;
+
+ unsigned has_mutable : 1;
+ unsigned com_interface : 1;
+ unsigned non_pod_class : 1;
+ unsigned nearly_empty_p : 1;
+ unsigned user_align : 1;
+ unsigned has_copy_assign : 1;
+ unsigned has_new : 1;
+ unsigned has_array_new : 1;
+
+ unsigned gets_delete : 2;
+ unsigned interface_only : 1;
+ unsigned interface_unknown : 1;
+ unsigned contains_empty_class_p : 1;
+ unsigned anon_aggr : 1;
+ unsigned non_zero_init : 1;
+ unsigned empty_p : 1;
+
+ unsigned vec_new_uses_cookie : 1;
+ unsigned declared_class : 1;
+ unsigned diamond_shaped : 1;
+ unsigned repeated_base : 1;
+ unsigned being_defined : 1;
+ unsigned java_interface : 1;
+ unsigned debug_requested : 1;
+ unsigned fields_readonly : 1;
+
+ unsigned use_template : 2;
+ unsigned ptrmemfunc_flag : 1;
+ unsigned was_anonymous : 1;
+ unsigned lazy_default_ctor : 1;
+ unsigned lazy_copy_ctor : 1;
+ unsigned lazy_copy_assign : 1;
+ unsigned lazy_destructor : 1;
+
+ unsigned has_const_copy_ctor : 1;
+ unsigned has_complex_copy_ctor : 1;
+ unsigned has_complex_copy_assign : 1;
+ unsigned non_aggregate : 1;
+ unsigned has_complex_dflt : 1;
+ unsigned has_list_ctor : 1;
+ unsigned non_std_layout : 1;
+ unsigned is_literal : 1;
+
+ unsigned lazy_move_ctor : 1;
+ unsigned lazy_move_assign : 1;
+ unsigned has_complex_move_ctor : 1;
+ unsigned has_complex_move_assign : 1;
+ unsigned has_constexpr_ctor : 1;
+
+ /* When adding a flag here, consider whether or not it ought to
+ apply to a template instance if it applies to the template. If
+ so, make sure to copy it in instantiate_class_template! */
+
+ /* There are some bits left to fill out a 32-bit word. Keep track
+ of this by updating the size of this bitfield whenever you add or
+ remove a flag. */
+ unsigned dummy : 3;
+
+ tree primary_base;
+ vec<tree_pair_s, va_gc> *vcall_indices;
+ tree vtables;
+ tree typeinfo_var;
+ vec<tree, va_gc> *vbases;
+ binding_table nested_udts;
+ tree as_base;
+ vec<tree, va_gc> *pure_virtuals;
+ tree friend_classes;
+ vec<tree, va_gc> * GTY((reorder ("resort_type_method_vec"))) methods;
+ tree key_method;
+ tree decl_list;
+ tree template_info;
+ tree befriending_classes;
+ /* In a RECORD_TYPE, information specific to Objective-C++, such
+ as a list of adopted protocols or a pointer to a corresponding
+ @interface. See objc/objc-act.h for details. */
+ tree objc_info;
+ /* sorted_fields is sorted based on a pointer, so we need to be able
+ to resort it if pointers get rearranged. */
+ struct sorted_fields_type * GTY ((reorder ("resort_sorted_fields")))
+ sorted_fields;
+ /* FIXME reuse another field? */
+ tree lambda_expr;
+};
+
+struct GTY(()) lang_type_ptrmem {
+ struct lang_type_header h;
+ tree record;
+};
+
+struct GTY((variable_size)) lang_type {
+ union lang_type_u
+ {
+ struct lang_type_header GTY((skip (""))) h;
+ struct lang_type_class GTY((tag ("1"))) c;
+ struct lang_type_ptrmem GTY((tag ("0"))) ptrmem;
+ } GTY((desc ("%h.h.is_lang_type_class"))) u;
+};
+
+#if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
+
+#define LANG_TYPE_CLASS_CHECK(NODE) __extension__ \
+({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
+ if (! lt->u.h.is_lang_type_class) \
+ lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
+ &lt->u.c; })
+
+#define LANG_TYPE_PTRMEM_CHECK(NODE) __extension__ \
+({ struct lang_type *lt = TYPE_LANG_SPECIFIC (NODE); \
+ if (lt->u.h.is_lang_type_class) \
+ lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
+ &lt->u.ptrmem; })
+
+#else
+
+#define LANG_TYPE_CLASS_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.c)
+#define LANG_TYPE_PTRMEM_CHECK(NODE) (&TYPE_LANG_SPECIFIC (NODE)->u.ptrmem)
+
+#endif /* ENABLE_TREE_CHECKING */
+
+/* Nonzero for _CLASSTYPE means that operator delete is defined. */
+#define TYPE_GETS_DELETE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->gets_delete)
+#define TYPE_GETS_REG_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 1)
+
+/* Nonzero if `new NODE[x]' should cause the allocation of extra
+ storage to indicate how many array elements are in use. */
+#define TYPE_VEC_NEW_USES_COOKIE(NODE) \
+ (CLASS_TYPE_P (NODE) \
+ && LANG_TYPE_CLASS_CHECK (NODE)->vec_new_uses_cookie)
+
+/* Nonzero means that this _CLASSTYPE node defines ways of converting
+ itself to other types. */
+#define TYPE_HAS_CONVERSION(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->h.has_type_conversion)
+
+/* Nonzero means that NODE (a class type) has a default constructor --
+ but that it has not yet been declared. */
+#define CLASSTYPE_LAZY_DEFAULT_CTOR(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->lazy_default_ctor)
+
+/* Nonzero means that NODE (a class type) has a copy constructor --
+ but that it has not yet been declared. */
+#define CLASSTYPE_LAZY_COPY_CTOR(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_ctor)
+
+/* Nonzero means that NODE (a class type) has a move constructor --
+ but that it has not yet been declared. */
+#define CLASSTYPE_LAZY_MOVE_CTOR(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->lazy_move_ctor)
+
+/* Nonzero means that NODE (a class type) has an assignment operator
+ -- but that it has not yet been declared. */
+#define CLASSTYPE_LAZY_COPY_ASSIGN(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->lazy_copy_assign)
+
+/* Nonzero means that NODE (a class type) has an assignment operator
+ -- but that it has not yet been declared. */
+#define CLASSTYPE_LAZY_MOVE_ASSIGN(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->lazy_move_assign)
+
+/* Nonzero means that NODE (a class type) has a destructor -- but that
+ it has not yet been declared. */
+#define CLASSTYPE_LAZY_DESTRUCTOR(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->lazy_destructor)
+
+/* Nonzero means that NODE (a class type) is final */
+#define CLASSTYPE_FINAL(NODE) \
+ TYPE_FINAL_P (NODE)
+
+
+/* Nonzero means that this _CLASSTYPE node overloads operator=(X&). */
+#define TYPE_HAS_COPY_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_copy_assign)
+
+/* True iff the class type NODE has an "operator =" whose parameter
+ has a parameter of type "const X&". */
+#define TYPE_HAS_CONST_COPY_ASSIGN(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->h.has_const_copy_assign)
+
+/* Nonzero means that this _CLASSTYPE node has an X(X&) constructor. */
+#define TYPE_HAS_COPY_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->h.has_copy_ctor)
+#define TYPE_HAS_CONST_COPY_CTOR(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->has_const_copy_ctor)
+
+/* Nonzero if this class has an X(initializer_list<T>) constructor. */
+#define TYPE_HAS_LIST_CTOR(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->has_list_ctor)
+
+/* Nonzero if this class has a constexpr constructor other than a copy/move
+ constructor. Note that a class can have constexpr constructors for
+ static initialization even if it isn't a literal class. */
+#define TYPE_HAS_CONSTEXPR_CTOR(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->has_constexpr_ctor)
+
+/* Nonzero if this class defines an overloaded operator new. (An
+ operator new [] doesn't count.) */
+#define TYPE_HAS_NEW_OPERATOR(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->has_new)
+
+/* Nonzero if this class defines an overloaded operator new[]. */
+#define TYPE_HAS_ARRAY_NEW_OPERATOR(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->has_array_new)
+
+/* Nonzero means that this type is being defined. I.e., the left brace
+ starting the definition of this type has been seen. */
+#define TYPE_BEING_DEFINED(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->being_defined)
+
+/* Nonzero means that this type is either complete or being defined, so we
+ can do lookup in it. */
+#define COMPLETE_OR_OPEN_TYPE_P(NODE) \
+ (COMPLETE_TYPE_P (NODE) || (CLASS_TYPE_P (NODE) && TYPE_BEING_DEFINED (NODE)))
+
+/* Mark bits for repeated base checks. */
+#define TYPE_MARKED_P(NODE) TREE_LANG_FLAG_6 (TYPE_CHECK (NODE))
+
+/* Nonzero if the class NODE has multiple paths to the same (virtual)
+ base object. */
+#define CLASSTYPE_DIAMOND_SHAPED_P(NODE) \
+ (LANG_TYPE_CLASS_CHECK(NODE)->diamond_shaped)
+
+/* Nonzero if the class NODE has multiple instances of the same base
+ type. */
+#define CLASSTYPE_REPEATED_BASE_P(NODE) \
+ (LANG_TYPE_CLASS_CHECK(NODE)->repeated_base)
+
+/* The member function with which the vtable will be emitted:
+ the first noninline non-pure-virtual member function. NULL_TREE
+ if there is no key function or if this is a class template */
+#define CLASSTYPE_KEY_METHOD(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->key_method)
+
+/* Vector member functions defined in this class. Each element is
+ either a FUNCTION_DECL, a TEMPLATE_DECL, or an OVERLOAD. All
+ functions with the same name end up in the same slot. The first
+ two elements are for constructors, and destructors, respectively.
+ All template conversion operators to innermost template dependent
+ types are overloaded on the next slot, if they exist. Note, the
+ names for these functions will not all be the same. The
+ non-template conversion operators & templated conversions to
+ non-innermost template types are next, followed by ordinary member
+ functions. There may be empty entries at the end of the vector.
+ The conversion operators are unsorted. The ordinary member
+ functions are sorted, once the class is complete. */
+#define CLASSTYPE_METHOD_VEC(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->methods)
+
+/* For class templates, this is a TREE_LIST of all member data,
+ functions, types, and friends in the order of declaration.
+ The TREE_PURPOSE of each TREE_LIST is NULL_TREE for a friend,
+ and the RECORD_TYPE for the class template otherwise. */
+#define CLASSTYPE_DECL_LIST(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->decl_list)
+
+/* The slot in the CLASSTYPE_METHOD_VEC where constructors go. */
+#define CLASSTYPE_CONSTRUCTOR_SLOT 0
+
+/* The slot in the CLASSTYPE_METHOD_VEC where destructors go. */
+#define CLASSTYPE_DESTRUCTOR_SLOT 1
+
+/* The first slot in the CLASSTYPE_METHOD_VEC where conversion
+ operators can appear. */
+#define CLASSTYPE_FIRST_CONVERSION_SLOT 2
+
+/* A FUNCTION_DECL or OVERLOAD for the constructors for NODE. These
+ are the constructors that take an in-charge parameter. */
+#define CLASSTYPE_CONSTRUCTORS(NODE) \
+ ((*CLASSTYPE_METHOD_VEC (NODE))[CLASSTYPE_CONSTRUCTOR_SLOT])
+
+/* A FUNCTION_DECL for the destructor for NODE. These are the
+ destructors that take an in-charge parameter. If
+ CLASSTYPE_LAZY_DESTRUCTOR is true, then this entry will be NULL
+ until the destructor is created with lazily_declare_fn. */
+#define CLASSTYPE_DESTRUCTORS(NODE) \
+ (CLASSTYPE_METHOD_VEC (NODE) \
+ ? (*CLASSTYPE_METHOD_VEC (NODE))[CLASSTYPE_DESTRUCTOR_SLOT] \
+ : NULL_TREE)
+
+/* A dictionary of the nested user-defined-types (class-types, or enums)
+ found within this class. This table includes nested member class
+ templates. */
+#define CLASSTYPE_NESTED_UTDS(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->nested_udts)
+
+/* Nonzero if NODE has a primary base class, i.e., a base class with
+ which it shares the virtual function table pointer. */
+#define CLASSTYPE_HAS_PRIMARY_BASE_P(NODE) \
+ (CLASSTYPE_PRIMARY_BINFO (NODE) != NULL_TREE)
+
+/* If non-NULL, this is the binfo for the primary base class, i.e.,
+ the base class which contains the virtual function table pointer
+ for this class. */
+#define CLASSTYPE_PRIMARY_BINFO(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->primary_base)
+
+/* A vector of BINFOs for the direct and indirect virtual base classes
+ that this type uses in a post-order depth-first left-to-right
+ order. (In other words, these bases appear in the order that they
+ should be initialized.) */
+#define CLASSTYPE_VBASECLASSES(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->vbases)
+
+/* The type corresponding to NODE when NODE is used as a base class,
+ i.e., NODE without virtual base classes. */
+
+#define CLASSTYPE_AS_BASE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->as_base)
+
+/* True iff NODE is the CLASSTYPE_AS_BASE version of some type. */
+
+#define IS_FAKE_BASE_TYPE(NODE) \
+ (TREE_CODE (NODE) == RECORD_TYPE \
+ && TYPE_CONTEXT (NODE) && CLASS_TYPE_P (TYPE_CONTEXT (NODE)) \
+ && CLASSTYPE_AS_BASE (TYPE_CONTEXT (NODE)) == (NODE))
+
+/* These are the size and alignment of the type without its virtual
+ base classes, for when we use this type as a base itself. */
+#define CLASSTYPE_SIZE(NODE) TYPE_SIZE (CLASSTYPE_AS_BASE (NODE))
+#define CLASSTYPE_SIZE_UNIT(NODE) TYPE_SIZE_UNIT (CLASSTYPE_AS_BASE (NODE))
+#define CLASSTYPE_ALIGN(NODE) TYPE_ALIGN (CLASSTYPE_AS_BASE (NODE))
+#define CLASSTYPE_USER_ALIGN(NODE) TYPE_USER_ALIGN (CLASSTYPE_AS_BASE (NODE))
+
+/* The alignment of NODE, without its virtual bases, in bytes. */
+#define CLASSTYPE_ALIGN_UNIT(NODE) \
+ (CLASSTYPE_ALIGN (NODE) / BITS_PER_UNIT)
+
+/* True if this a Java interface type, declared with
+ '__attribute__ ((java_interface))'. */
+#define TYPE_JAVA_INTERFACE(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->java_interface)
+
+/* A vec<tree> of virtual functions which cannot be inherited by
+ derived classes. When deriving from this type, the derived
+ class must provide its own definition for each of these functions. */
+#define CLASSTYPE_PURE_VIRTUALS(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->pure_virtuals)
+
+/* Nonzero means that this type is an abstract class type. */
+#define ABSTRACT_CLASS_TYPE_P(NODE) \
+ (CLASS_TYPE_P (NODE) && CLASSTYPE_PURE_VIRTUALS(NODE))
+
+/* Nonzero means that this type has an X() constructor. */
+#define TYPE_HAS_DEFAULT_CONSTRUCTOR(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->h.has_default_ctor)
+
+/* Nonzero means that this type contains a mutable member. */
+#define CLASSTYPE_HAS_MUTABLE(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_mutable)
+#define TYPE_HAS_MUTABLE_P(NODE) (cp_has_mutable_p (NODE))
+
+/* Nonzero means that this class type is not POD for the purpose of layout
+ (as defined in the ABI). This is different from the language's POD. */
+#define CLASSTYPE_NON_LAYOUT_POD_P(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->non_pod_class)
+
+/* Nonzero means that this class type is a non-standard-layout class. */
+#define CLASSTYPE_NON_STD_LAYOUT(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->non_std_layout)
+
+/* Nonzero means that this class contains pod types whose default
+ initialization is not a zero initialization (namely, pointers to
+ data members). */
+#define CLASSTYPE_NON_ZERO_INIT_P(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->non_zero_init)
+
+/* Nonzero if this class is "empty" in the sense of the C++ ABI. */
+#define CLASSTYPE_EMPTY_P(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->empty_p)
+
+/* Nonzero if this class is "nearly empty", i.e., contains only a
+ virtual function table pointer. */
+#define CLASSTYPE_NEARLY_EMPTY_P(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->nearly_empty_p)
+
+/* Nonzero if this class contains an empty subobject. */
+#define CLASSTYPE_CONTAINS_EMPTY_CLASS_P(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->contains_empty_class_p)
+
+/* A list of class types of which this type is a friend. The
+ TREE_VALUE is normally a TYPE, but will be a TEMPLATE_DECL in the
+ case of a template friend. */
+#define CLASSTYPE_FRIEND_CLASSES(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->friend_classes)
+
+/* A list of the classes which grant friendship to this class. */
+#define CLASSTYPE_BEFRIENDING_CLASSES(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->befriending_classes)
+
+/* The associated LAMBDA_EXPR that made this class. */
+#define CLASSTYPE_LAMBDA_EXPR(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->lambda_expr)
+/* The extra mangling scope for this closure type. */
+#define LAMBDA_TYPE_EXTRA_SCOPE(NODE) \
+ (LAMBDA_EXPR_EXTRA_SCOPE (CLASSTYPE_LAMBDA_EXPR (NODE)))
+
+/* Say whether this node was declared as a "class" or a "struct". */
+#define CLASSTYPE_DECLARED_CLASS(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->declared_class)
+
+/* Nonzero if this class has const members
+ which have no specified initialization. */
+#define CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE) \
+ (TYPE_LANG_SPECIFIC (NODE) \
+ ? LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init : 0)
+#define SET_CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE, VALUE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->h.const_needs_init = (VALUE))
+
+/* Nonzero if this class has ref members
+ which have no specified initialization. */
+#define CLASSTYPE_REF_FIELDS_NEED_INIT(NODE) \
+ (TYPE_LANG_SPECIFIC (NODE) \
+ ? LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init : 0)
+#define SET_CLASSTYPE_REF_FIELDS_NEED_INIT(NODE, VALUE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->h.ref_needs_init = (VALUE))
+
+/* Nonzero if this class is included from a header file which employs
+ `#pragma interface', and it is not included in its implementation file. */
+#define CLASSTYPE_INTERFACE_ONLY(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->interface_only)
+
+/* True if we have already determined whether or not vtables, VTTs,
+ typeinfo, and other similar per-class data should be emitted in
+ this translation unit. This flag does not indicate whether or not
+ these items should be emitted; it only indicates that we know one
+ way or the other. */
+#define CLASSTYPE_INTERFACE_KNOWN(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown == 0)
+/* The opposite of CLASSTYPE_INTERFACE_KNOWN. */
+#define CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown)
+
+#define SET_CLASSTYPE_INTERFACE_UNKNOWN_X(NODE,X) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = !!(X))
+#define SET_CLASSTYPE_INTERFACE_UNKNOWN(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 1)
+#define SET_CLASSTYPE_INTERFACE_KNOWN(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->interface_unknown = 0)
+
+/* Nonzero if a _DECL node requires us to output debug info for this class. */
+#define CLASSTYPE_DEBUG_REQUESTED(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->debug_requested)
+
+/* Additional macros for inheritance information. */
+
+/* Nonzero means that this class is on a path leading to a new vtable. */
+#define BINFO_VTABLE_PATH_MARKED(NODE) BINFO_FLAG_1 (NODE)
+
+/* Nonzero means B (a BINFO) has its own vtable. Any copies will not
+ have this flag set. */
+#define BINFO_NEW_VTABLE_MARKED(B) (BINFO_FLAG_2 (B))
+
+/* Compare a BINFO_TYPE with another type for equality. For a binfo,
+ this is functionally equivalent to using same_type_p, but
+ measurably faster. At least one of the arguments must be a
+ BINFO_TYPE. The other can be a BINFO_TYPE or a regular type. If
+ BINFO_TYPE(T) ever stops being the main variant of the class the
+ binfo is for, this macro must change. */
+#define SAME_BINFO_TYPE_P(A, B) ((A) == (B))
+
+/* Any subobject that needs a new vtable must have a vptr and must not
+ be a non-virtual primary base (since it would then use the vtable from a
+ derived class and never become non-primary.) */
+#define SET_BINFO_NEW_VTABLE_MARKED(B) \
+ (BINFO_NEW_VTABLE_MARKED (B) = 1, \
+ gcc_assert (!BINFO_PRIMARY_P (B) || BINFO_VIRTUAL_P (B)), \
+ gcc_assert (TYPE_VFIELD (BINFO_TYPE (B))))
+
+/* Nonzero if this binfo is for a dependent base - one that should not
+ be searched. */
+#define BINFO_DEPENDENT_BASE_P(NODE) BINFO_FLAG_3 (NODE)
+
+/* Nonzero if this binfo has lost its primary base binfo (because that
+ is a nearly-empty virtual base that has been taken by some other
+ base in the complete hierarchy. */
+#define BINFO_LOST_PRIMARY_P(NODE) BINFO_FLAG_4 (NODE)
+
+/* Nonzero if this BINFO is a primary base class. */
+#define BINFO_PRIMARY_P(NODE) BINFO_FLAG_5(NODE)
+
+/* Used by various search routines. */
+#define IDENTIFIER_MARKED(NODE) TREE_LANG_FLAG_0 (NODE)
+
+/* A vec<tree_pair_s> of the vcall indices associated with the class
+ NODE. The PURPOSE of each element is a FUNCTION_DECL for a virtual
+ function. The VALUE is the index into the virtual table where the
+ vcall offset for that function is stored, when NODE is a virtual
+ base. */
+#define CLASSTYPE_VCALL_INDICES(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->vcall_indices)
+
+/* The various vtables for the class NODE. The primary vtable will be
+ first, followed by the construction vtables and VTT, if any. */
+#define CLASSTYPE_VTABLES(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->vtables)
+
+/* The std::type_info variable representing this class, or NULL if no
+ such variable has been created. This field is only set for the
+ TYPE_MAIN_VARIANT of the class. */
+#define CLASSTYPE_TYPEINFO_VAR(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->typeinfo_var)
+
+/* Accessor macros for the BINFO_VIRTUALS list. */
+
+/* The number of bytes by which to adjust the `this' pointer when
+ calling this virtual function. Subtract this value from the this
+ pointer. Always non-NULL, might be constant zero though. */
+#define BV_DELTA(NODE) (TREE_PURPOSE (NODE))
+
+/* If non-NULL, the vtable index at which to find the vcall offset
+ when calling this virtual function. Add the value at that vtable
+ index to the this pointer. */
+#define BV_VCALL_INDEX(NODE) (TREE_TYPE (NODE))
+
+/* The function to call. */
+#define BV_FN(NODE) (TREE_VALUE (NODE))
+
+/* Whether or not this entry is for a lost primary virtual base. */
+#define BV_LOST_PRIMARY(NODE) (TREE_LANG_FLAG_0 (NODE))
+
+/* For FUNCTION_TYPE or METHOD_TYPE, a list of the exceptions that
+ this type can raise. Each TREE_VALUE is a _TYPE. The TREE_VALUE
+ will be NULL_TREE to indicate a throw specification of `()', or
+ no exceptions allowed. For a noexcept specification, TREE_VALUE
+ is NULL_TREE and TREE_PURPOSE is the constant-expression. For
+ a deferred noexcept-specification, TREE_PURPOSE is a DEFERRED_NOEXCEPT
+ (for templates) or an OVERLOAD list of functions (for implicitly
+ declared functions). */
+#define TYPE_RAISES_EXCEPTIONS(NODE) \
+ TYPE_LANG_SLOT_1 (FUNC_OR_METHOD_CHECK (NODE))
+
+/* For FUNCTION_TYPE or METHOD_TYPE, return 1 iff it is declared `throw()'
+ or noexcept(true). */
+#define TYPE_NOTHROW_P(NODE) nothrow_spec_p (TYPE_RAISES_EXCEPTIONS (NODE))
+
+/* For FUNCTION_TYPE or METHOD_TYPE, true if NODE is noexcept. This is the
+ case for things declared noexcept(true) and, with -fnothrow-opt, for
+ throw() functions. */
+#define TYPE_NOEXCEPT_P(NODE) type_noexcept_p (NODE)
+
+/* The binding level associated with the namespace. */
+#define NAMESPACE_LEVEL(NODE) \
+ (LANG_DECL_NS_CHECK (NODE)->level)
+
+/* Flags shared by all forms of DECL_LANG_SPECIFIC.
+
+ Some of the flags live here only to make lang_decl_min/fn smaller. Do
+ not make this struct larger than 32 bits; instead, make sel smaller. */
+
+struct GTY(()) lang_decl_base {
+ unsigned selector : 16; /* Larger than necessary for faster access. */
+ ENUM_BITFIELD(languages) language : 4;
+ unsigned use_template : 2;
+ unsigned not_really_extern : 1; /* var or fn */
+ unsigned initialized_in_class : 1; /* var or fn */
+ unsigned repo_available_p : 1; /* var or fn */
+ unsigned threadprivate_or_deleted_p : 1; /* var or fn */
+ unsigned anticipated_p : 1; /* fn, type or template */
+ unsigned friend_attr : 1; /* fn, type or template */
+ unsigned template_conv_p : 1; /* var or template */
+ unsigned odr_used : 1; /* var or fn */
+ unsigned u2sel : 1;
+ /* 1 spare bit */
+};
+
+/* True for DECL codes which have template info and access. */
+#define LANG_DECL_HAS_MIN(NODE) \
+ (VAR_OR_FUNCTION_DECL_P (NODE) \
+ || TREE_CODE (NODE) == FIELD_DECL \
+ || TREE_CODE (NODE) == CONST_DECL \
+ || TREE_CODE (NODE) == TYPE_DECL \
+ || TREE_CODE (NODE) == TEMPLATE_DECL \
+ || TREE_CODE (NODE) == USING_DECL)
+
+/* DECL_LANG_SPECIFIC for the above codes. */
+
+struct GTY(()) lang_decl_min {
+ struct lang_decl_base base;
+
+ /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
+ THUNK_ALIAS.
+ In a FUNCTION_DECL for which DECL_THUNK_P does not hold,
+ VAR_DECL, TYPE_DECL, or TEMPLATE_DECL, this is
+ DECL_TEMPLATE_INFO. */
+ tree template_info;
+
+ union lang_decl_u2 {
+ /* In a FUNCTION_DECL for which DECL_THUNK_P holds, this is
+ THUNK_VIRTUAL_OFFSET.
+ Otherwise this is DECL_ACCESS. */
+ tree GTY ((tag ("0"))) access;
+
+ /* For VAR_DECL in function, this is DECL_DISCRIMINATOR. */
+ int GTY ((tag ("1"))) discriminator;
+ } GTY ((desc ("%0.u.base.u2sel"))) u2;
+};
+
+/* Additional DECL_LANG_SPECIFIC information for functions. */
+
+struct GTY(()) lang_decl_fn {
+ struct lang_decl_min min;
+
+ /* In an overloaded operator, this is the value of
+ DECL_OVERLOADED_OPERATOR_P. */
+ ENUM_BITFIELD (tree_code) operator_code : 16;
+
+ unsigned global_ctor_p : 1;
+ unsigned global_dtor_p : 1;
+ unsigned constructor_attr : 1;
+ unsigned destructor_attr : 1;
+ unsigned assignment_operator_p : 1;
+ unsigned static_function : 1;
+ unsigned pure_virtual : 1;
+ unsigned defaulted_p : 1;
+
+ unsigned has_in_charge_parm_p : 1;
+ unsigned has_vtt_parm_p : 1;
+ unsigned pending_inline_p : 1;
+ unsigned nonconverting : 1;
+ unsigned thunk_p : 1;
+ unsigned this_thunk_p : 1;
+ unsigned hidden_friend_p : 1;
+ unsigned omp_declare_reduction_p : 1;
+ /* No spare bits on 32-bit hosts, 32 on 64-bit hosts. */
+
+ /* For a non-thunk function decl, this is a tree list of
+ friendly classes. For a thunk function decl, it is the
+ thunked to function decl. */
+ tree befriending_classes;
+
+ /* For a non-virtual FUNCTION_DECL, this is
+ DECL_FRIEND_CONTEXT. For a virtual FUNCTION_DECL for which
+ DECL_THIS_THUNK_P does not hold, this is DECL_THUNKS. Both
+ this pointer and result pointer adjusting thunks are
+ chained here. This pointer thunks to return pointer thunks
+ will be chained on the return pointer thunk. */
+ tree context;
+
+ union lang_decl_u5
+ {
+ /* In a non-thunk FUNCTION_DECL or TEMPLATE_DECL, this is
+ DECL_CLONED_FUNCTION. */
+ tree GTY ((tag ("0"))) cloned_function;
+
+ /* In a FUNCTION_DECL for which THUNK_P holds this is the
+ THUNK_FIXED_OFFSET. */
+ HOST_WIDE_INT GTY ((tag ("1"))) fixed_offset;
+ } GTY ((desc ("%1.thunk_p"))) u5;
+
+ union lang_decl_u3
+ {
+ struct cp_token_cache * GTY ((tag ("1"))) pending_inline_info;
+ struct language_function * GTY ((tag ("0")))
+ saved_language_function;
+ } GTY ((desc ("%1.pending_inline_p"))) u;
+
+};
+
+/* DECL_LANG_SPECIFIC for namespaces. */
+
+struct GTY(()) lang_decl_ns {
+ struct lang_decl_base base;
+ cp_binding_level *level;
+};
+
+/* DECL_LANG_SPECIFIC for parameters. */
+
+struct GTY(()) lang_decl_parm {
+ struct lang_decl_base base;
+ int level;
+ int index;
+};
+
+/* DECL_LANG_SPECIFIC for all types. It would be nice to just make this a
+ union rather than a struct containing a union as its only field, but
+ tree.h declares it as a struct. */
+
+struct GTY((variable_size)) lang_decl {
+ union GTY((desc ("%h.base.selector"))) lang_decl_u {
+ struct lang_decl_base GTY ((default)) base;
+ struct lang_decl_min GTY((tag ("0"))) min;
+ struct lang_decl_fn GTY ((tag ("1"))) fn;
+ struct lang_decl_ns GTY((tag ("2"))) ns;
+ struct lang_decl_parm GTY((tag ("3"))) parm;
+ } u;
+};
+
+/* Looks through a template (if present) to find what it declares. */
+#define STRIP_TEMPLATE(NODE) \
+ (TREE_CODE (NODE) == TEMPLATE_DECL ? DECL_TEMPLATE_RESULT (NODE) : NODE)
+
+#if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
+
+#define LANG_DECL_MIN_CHECK(NODE) __extension__ \
+({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
+ if (!LANG_DECL_HAS_MIN (NODE)) \
+ lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
+ &lt->u.min; })
+
+/* We want to be able to check DECL_CONSTRUCTOR_P and such on a function
+ template, not just on a FUNCTION_DECL. So when looking for things in
+ lang_decl_fn, look down through a TEMPLATE_DECL into its result. */
+#define LANG_DECL_FN_CHECK(NODE) __extension__ \
+({ struct lang_decl *lt = DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE)); \
+ if (!DECL_DECLARES_FUNCTION_P (NODE) || lt->u.base.selector != 1) \
+ lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
+ &lt->u.fn; })
+
+#define LANG_DECL_NS_CHECK(NODE) __extension__ \
+({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
+ if (TREE_CODE (NODE) != NAMESPACE_DECL || lt->u.base.selector != 2) \
+ lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
+ &lt->u.ns; })
+
+#define LANG_DECL_PARM_CHECK(NODE) __extension__ \
+({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
+ if (TREE_CODE (NODE) != PARM_DECL) \
+ lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
+ &lt->u.parm; })
+
+#define LANG_DECL_U2_CHECK(NODE, TF) __extension__ \
+({ struct lang_decl *lt = DECL_LANG_SPECIFIC (NODE); \
+ if (!LANG_DECL_HAS_MIN (NODE) || lt->u.base.u2sel != TF) \
+ lang_check_failed (__FILE__, __LINE__, __FUNCTION__); \
+ &lt->u.min.u2; })
+
+#else
+
+#define LANG_DECL_MIN_CHECK(NODE) \
+ (&DECL_LANG_SPECIFIC (NODE)->u.min)
+
+#define LANG_DECL_FN_CHECK(NODE) \
+ (&DECL_LANG_SPECIFIC (STRIP_TEMPLATE (NODE))->u.fn)
+
+#define LANG_DECL_NS_CHECK(NODE) \
+ (&DECL_LANG_SPECIFIC (NODE)->u.ns)
+
+#define LANG_DECL_PARM_CHECK(NODE) \
+ (&DECL_LANG_SPECIFIC (NODE)->u.parm)
+
+#define LANG_DECL_U2_CHECK(NODE, TF) \
+ (&DECL_LANG_SPECIFIC (NODE)->u.min.u2)
+
+#endif /* ENABLE_TREE_CHECKING */
+
+/* For a FUNCTION_DECL or a VAR_DECL, the language linkage for the
+ declaration. Some entities (like a member function in a local
+ class, or a local variable) do not have linkage at all, and this
+ macro should not be used in those cases.
+
+ Implementation note: A FUNCTION_DECL without DECL_LANG_SPECIFIC was
+ created by language-independent code, and has C linkage. Most
+ VAR_DECLs have C++ linkage, and do not have DECL_LANG_SPECIFIC, but
+ we do create DECL_LANG_SPECIFIC for variables with non-C++ linkage. */
+#define DECL_LANGUAGE(NODE) \
+ (DECL_LANG_SPECIFIC (NODE) \
+ ? DECL_LANG_SPECIFIC (NODE)->u.base.language \
+ : (TREE_CODE (NODE) == FUNCTION_DECL \
+ ? lang_c : lang_cplusplus))
+
+/* Set the language linkage for NODE to LANGUAGE. */
+#define SET_DECL_LANGUAGE(NODE, LANGUAGE) \
+ (DECL_LANG_SPECIFIC (NODE)->u.base.language = (LANGUAGE))
+
+/* For FUNCTION_DECLs and TEMPLATE_DECLs: nonzero means that this function
+ is a constructor. */
+#define DECL_CONSTRUCTOR_P(NODE) \
+ DECL_CXX_CONSTRUCTOR_P (STRIP_TEMPLATE (NODE))
+
+/* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a complete
+ object. */
+#define DECL_COMPLETE_CONSTRUCTOR_P(NODE) \
+ (DECL_CONSTRUCTOR_P (NODE) \
+ && DECL_NAME (NODE) == complete_ctor_identifier)
+
+/* Nonzero if NODE (a FUNCTION_DECL) is a constructor for a base
+ object. */
+#define DECL_BASE_CONSTRUCTOR_P(NODE) \
+ (DECL_CONSTRUCTOR_P (NODE) \
+ && DECL_NAME (NODE) == base_ctor_identifier)
+
+/* Nonzero if NODE (a FUNCTION_DECL) is a constructor, but not either the
+ specialized in-charge constructor or the specialized not-in-charge
+ constructor. */
+#define DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P(NODE) \
+ (DECL_DECLARES_FUNCTION_P (NODE) && DECL_CONSTRUCTOR_P (NODE) \
+ && !DECL_CLONED_FUNCTION_P (NODE))
+
+/* Nonzero if NODE (a FUNCTION_DECL) is a copy constructor. */
+#define DECL_COPY_CONSTRUCTOR_P(NODE) \
+ (DECL_CONSTRUCTOR_P (NODE) && copy_fn_p (NODE) > 0)
+
+/* Nonzero if NODE (a FUNCTION_DECL) is a move constructor. */
+#define DECL_MOVE_CONSTRUCTOR_P(NODE) \
+ (DECL_CONSTRUCTOR_P (NODE) && move_fn_p (NODE))
+
+/* Nonzero if NODE (a FUNCTION_DECL or TEMPLATE_DECL)
+ is a destructor. */
+#define DECL_DESTRUCTOR_P(NODE) \
+ DECL_CXX_DESTRUCTOR_P (STRIP_TEMPLATE (NODE))
+
+/* Nonzero if NODE (a FUNCTION_DECL) is a destructor, but not the
+ specialized in-charge constructor, in-charge deleting constructor,
+ or the base destructor. */
+#define DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P(NODE) \
+ (DECL_DECLARES_FUNCTION_P (NODE) && DECL_DESTRUCTOR_P (NODE) \
+ && !DECL_CLONED_FUNCTION_P (NODE))
+
+/* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
+ object. */
+#define DECL_COMPLETE_DESTRUCTOR_P(NODE) \
+ (DECL_DESTRUCTOR_P (NODE) \
+ && DECL_NAME (NODE) == complete_dtor_identifier)
+
+/* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a base
+ object. */
+#define DECL_BASE_DESTRUCTOR_P(NODE) \
+ (DECL_DESTRUCTOR_P (NODE) \
+ && DECL_NAME (NODE) == base_dtor_identifier)
+
+/* Nonzero if NODE (a FUNCTION_DECL) is a destructor for a complete
+ object that deletes the object after it has been destroyed. */
+#define DECL_DELETING_DESTRUCTOR_P(NODE) \
+ (DECL_DESTRUCTOR_P (NODE) \
+ && DECL_NAME (NODE) == deleting_dtor_identifier)
+
+/* Nonzero if NODE (a FUNCTION_DECL) is a cloned constructor or
+ destructor. */
+#define DECL_CLONED_FUNCTION_P(NODE) (!!decl_cloned_function_p (NODE, true))
+
+/* If DECL_CLONED_FUNCTION_P holds, this is the function that was
+ cloned. */
+#define DECL_CLONED_FUNCTION(NODE) (*decl_cloned_function_p (NODE, false))
+
+/* Perform an action for each clone of FN, if FN is a function with
+ clones. This macro should be used like:
+
+ FOR_EACH_CLONE (clone, fn)
+ { ... }
+
+ */
+#define FOR_EACH_CLONE(CLONE, FN) \
+ if (TREE_CODE (FN) == FUNCTION_DECL \
+ && (DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (FN) \
+ || DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (FN))) \
+ for (CLONE = DECL_CHAIN (FN); \
+ CLONE && DECL_CLONED_FUNCTION_P (CLONE); \
+ CLONE = DECL_CHAIN (CLONE))
+
+/* Nonzero if NODE has DECL_DISCRIMINATOR and not DECL_ACCESS. */
+#define DECL_DISCRIMINATOR_P(NODE) \
+ (VAR_P (NODE) && DECL_FUNCTION_SCOPE_P (NODE))
+
+/* Discriminator for name mangling. */
+#define DECL_DISCRIMINATOR(NODE) (LANG_DECL_U2_CHECK (NODE, 1)->discriminator)
+
+/* True iff DECL_DISCRIMINATOR is set for a DECL_DISCRIMINATOR_P decl. */
+#define DECL_DISCRIMINATOR_SET_P(NODE) \
+ (DECL_LANG_SPECIFIC (NODE) && DECL_LANG_SPECIFIC (NODE)->u.base.u2sel == 1)
+
+/* The index of a user-declared parameter in its function, starting at 1.
+ All artificial parameters will have index 0. */
+#define DECL_PARM_INDEX(NODE) \
+ (LANG_DECL_PARM_CHECK (NODE)->index)
+
+/* The level of a user-declared parameter in its function, starting at 1.
+ A parameter of the function will have level 1; a parameter of the first
+ nested function declarator (i.e. t in void f (void (*p)(T t))) will have
+ level 2. */
+#define DECL_PARM_LEVEL(NODE) \
+ (LANG_DECL_PARM_CHECK (NODE)->level)
+
+/* Nonzero if the VTT parm has been added to NODE. */
+#define DECL_HAS_VTT_PARM_P(NODE) \
+ (LANG_DECL_FN_CHECK (NODE)->has_vtt_parm_p)
+
+/* Nonzero if NODE is a FUNCTION_DECL for which a VTT parameter is
+ required. */
+#define DECL_NEEDS_VTT_PARM_P(NODE) \
+ (CLASSTYPE_VBASECLASSES (DECL_CONTEXT (NODE)) \
+ && (DECL_BASE_CONSTRUCTOR_P (NODE) \
+ || DECL_BASE_DESTRUCTOR_P (NODE)))
+
+/* Nonzero if NODE is a user-defined conversion operator. */
+#define DECL_CONV_FN_P(NODE) \
+ (DECL_NAME (NODE) && IDENTIFIER_TYPENAME_P (DECL_NAME (NODE)))
+
+/* If FN is a conversion operator, the type to which it converts.
+ Otherwise, NULL_TREE. */
+#define DECL_CONV_FN_TYPE(FN) \
+ (DECL_CONV_FN_P (FN) ? TREE_TYPE (DECL_NAME (FN)) : NULL_TREE)
+
+/* Nonzero if NODE, which is a TEMPLATE_DECL, is a template
+ conversion operator to a type dependent on the innermost template
+ args. */
+#define DECL_TEMPLATE_CONV_FN_P(NODE) \
+ (DECL_LANG_SPECIFIC (TEMPLATE_DECL_CHECK (NODE))->u.base.template_conv_p)
+
+/* Nonzero if NODE, a static data member, was declared in its class as an
+ array of unknown bound. */
+#define VAR_HAD_UNKNOWN_BOUND(NODE) \
+ (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE)) \
+ ? DECL_LANG_SPECIFIC (NODE)->u.base.template_conv_p \
+ : false)
+#define SET_VAR_HAD_UNKNOWN_BOUND(NODE) \
+ (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (NODE))->u.base.template_conv_p = true)
+
+/* Set the overloaded operator code for NODE to CODE. */
+#define SET_OVERLOADED_OPERATOR_CODE(NODE, CODE) \
+ (LANG_DECL_FN_CHECK (NODE)->operator_code = (CODE))
+
+/* If NODE is an overloaded operator, then this returns the TREE_CODE
+ associated with the overloaded operator.
+ DECL_ASSIGNMENT_OPERATOR_P must also be checked to determine
+ whether or not NODE is an assignment operator. If NODE is not an
+ overloaded operator, ERROR_MARK is returned. Since the numerical
+ value of ERROR_MARK is zero, this macro can be used as a predicate
+ to test whether or not NODE is an overloaded operator. */
+#define DECL_OVERLOADED_OPERATOR_P(NODE) \
+ (IDENTIFIER_OPNAME_P (DECL_NAME (NODE)) \
+ ? LANG_DECL_FN_CHECK (NODE)->operator_code : ERROR_MARK)
+
+/* Nonzero if NODE is an assignment operator (including += and such). */
+#define DECL_ASSIGNMENT_OPERATOR_P(NODE) \
+ (LANG_DECL_FN_CHECK (NODE)->assignment_operator_p)
+
+/* For FUNCTION_DECLs: nonzero means that this function is a
+ constructor or a destructor with an extra in-charge parameter to
+ control whether or not virtual bases are constructed. */
+#define DECL_HAS_IN_CHARGE_PARM_P(NODE) \
+ (LANG_DECL_FN_CHECK (NODE)->has_in_charge_parm_p)
+
+/* Nonzero if DECL is a declaration of __builtin_constant_p. */
+#define DECL_IS_BUILTIN_CONSTANT_P(NODE) \
+ (TREE_CODE (NODE) == FUNCTION_DECL \
+ && DECL_BUILT_IN_CLASS (NODE) == BUILT_IN_NORMAL \
+ && DECL_FUNCTION_CODE (NODE) == BUILT_IN_CONSTANT_P)
+
+/* Nonzero for _DECL means that this decl appears in (or will appear
+ in) as a member in a RECORD_TYPE or UNION_TYPE node. It is also for
+ detecting circularity in case members are multiply defined. In the
+ case of a VAR_DECL, it is also used to determine how program storage
+ should be allocated. */
+#define DECL_IN_AGGR_P(NODE) (DECL_LANG_FLAG_3 (NODE))
+
+/* Nonzero for a VAR_DECL means that the variable's initialization (if
+ any) has been processed. (In general, DECL_INITIALIZED_P is
+ !DECL_EXTERNAL, but static data members may be initialized even if
+ not defined.) */
+#define DECL_INITIALIZED_P(NODE) \
+ (TREE_LANG_FLAG_1 (VAR_DECL_CHECK (NODE)))
+
+/* Nonzero for a VAR_DECL iff an explicit initializer was provided
+ or a non-trivial constructor is called. */
+#define DECL_NONTRIVIALLY_INITIALIZED_P(NODE) \
+ (TREE_LANG_FLAG_3 (VAR_DECL_CHECK (NODE)))
+
+/* Nonzero for a VAR_DECL that was initialized with a
+ constant-expression. */
+#define DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P(NODE) \
+ (TREE_LANG_FLAG_2 (VAR_DECL_CHECK (NODE)))
+
+/* Nonzero if the DECL was initialized in the class definition itself,
+ rather than outside the class. This is used for both static member
+ VAR_DECLS, and FUNCTION_DECLS that are defined in the class. */
+#define DECL_INITIALIZED_IN_CLASS_P(DECL) \
+ (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \
+ ->u.base.initialized_in_class)
+
+/* Nonzero if the DECL is used in the sense of 3.2 [basic.def.odr].
+ Only available for decls with DECL_LANG_SPECIFIC. */
+#define DECL_ODR_USED(DECL) \
+ (DECL_LANG_SPECIFIC (VAR_OR_FUNCTION_DECL_CHECK (DECL)) \
+ ->u.base.odr_used)
+
+/* Nonzero for DECL means that this decl is just a friend declaration,
+ and should not be added to the list of members for this class. */
+#define DECL_FRIEND_P(NODE) \
+ (DECL_LANG_SPECIFIC (TYPE_FUNCTION_OR_TEMPLATE_DECL_CHECK (NODE)) \
+ ->u.base.friend_attr)
+
+/* A TREE_LIST of the types which have befriended this FUNCTION_DECL. */
+#define DECL_BEFRIENDING_CLASSES(NODE) \
+ (LANG_DECL_FN_CHECK (NODE)->befriending_classes)
+
+/* Nonzero for FUNCTION_DECL means that this decl is a static
+ member function. */
+#define DECL_STATIC_FUNCTION_P(NODE) \
+ (LANG_DECL_FN_CHECK (NODE)->static_function)
+
+/* Nonzero for FUNCTION_DECL means that this decl is a non-static
+ member function. */
+#define DECL_NONSTATIC_MEMBER_FUNCTION_P(NODE) \
+ (TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE)
+
+/* Nonzero for FUNCTION_DECL means that this decl is a member function
+ (static or non-static). */
+#define DECL_FUNCTION_MEMBER_P(NODE) \
+ (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) || DECL_STATIC_FUNCTION_P (NODE))
+
+/* Nonzero for FUNCTION_DECL means that this member function
+ has `this' as const X *const. */
+#define DECL_CONST_MEMFUNC_P(NODE) \
+ (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
+ && CP_TYPE_CONST_P (TREE_TYPE (TREE_VALUE \
+ (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
+
+/* Nonzero for FUNCTION_DECL means that this member function
+ has `this' as volatile X *const. */
+#define DECL_VOLATILE_MEMFUNC_P(NODE) \
+ (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
+ && CP_TYPE_VOLATILE_P (TREE_TYPE (TREE_VALUE \
+ (TYPE_ARG_TYPES (TREE_TYPE (NODE))))))
+
+/* Nonzero for a DECL means that this member is a non-static member. */
+#define DECL_NONSTATIC_MEMBER_P(NODE) \
+ (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
+ || TREE_CODE (NODE) == FIELD_DECL)
+
+/* Nonzero for _DECL means that this member object type
+ is mutable. */
+#define DECL_MUTABLE_P(NODE) (DECL_LANG_FLAG_0 (NODE))
+
+/* Nonzero for _DECL means that this constructor or conversion function is
+ non-converting. */
+#define DECL_NONCONVERTING_P(NODE) \
+ (LANG_DECL_FN_CHECK (NODE)->nonconverting)
+
+/* Nonzero for FUNCTION_DECL means that this member function is a pure
+ virtual function. */
+#define DECL_PURE_VIRTUAL_P(NODE) \
+ (LANG_DECL_FN_CHECK (NODE)->pure_virtual)
+
+/* True (in a FUNCTION_DECL) if NODE is a virtual function that is an
+ invalid overrider for a function from a base class. Once we have
+ complained about an invalid overrider we avoid complaining about it
+ again. */
+#define DECL_INVALID_OVERRIDER_P(NODE) \
+ (DECL_LANG_FLAG_4 (NODE))
+
+/* True (in a FUNCTION_DECL) if NODE is a function declared with
+ an override virt-specifier */
+#define DECL_OVERRIDE_P(NODE) (TREE_LANG_FLAG_0 (NODE))
+
+/* The thunks associated with NODE, a FUNCTION_DECL. */
+#define DECL_THUNKS(NODE) \
+ (DECL_VIRTUAL_P (NODE) ? LANG_DECL_FN_CHECK (NODE)->context : NULL_TREE)
+
+/* Set DECL_THUNKS. */
+#define SET_DECL_THUNKS(NODE,THUNKS) \
+ (LANG_DECL_FN_CHECK (NODE)->context = (THUNKS))
+
+/* If NODE, a FUNCTION_DECL, is a C++11 inheriting constructor, then this
+ is the base it inherits from. */
+#define DECL_INHERITED_CTOR_BASE(NODE) \
+ (DECL_CONSTRUCTOR_P (NODE) ? LANG_DECL_FN_CHECK (NODE)->context : NULL_TREE)
+
+/* Set the inherited base. */
+#define SET_DECL_INHERITED_CTOR_BASE(NODE,INH) \
+ (LANG_DECL_FN_CHECK (NODE)->context = (INH))
+
+/* Nonzero if NODE is a thunk, rather than an ordinary function. */
+#define DECL_THUNK_P(NODE) \
+ (TREE_CODE (NODE) == FUNCTION_DECL \
+ && DECL_LANG_SPECIFIC (NODE) \
+ && LANG_DECL_FN_CHECK (NODE)->thunk_p)
+
+/* Set DECL_THUNK_P for node. */
+#define SET_DECL_THUNK_P(NODE, THIS_ADJUSTING) \
+ (LANG_DECL_FN_CHECK (NODE)->thunk_p = 1, \
+ LANG_DECL_FN_CHECK (NODE)->this_thunk_p = (THIS_ADJUSTING))
+
+/* Nonzero if NODE is a this pointer adjusting thunk. */
+#define DECL_THIS_THUNK_P(NODE) \
+ (DECL_THUNK_P (NODE) && LANG_DECL_FN_CHECK (NODE)->this_thunk_p)
+
+/* Nonzero if NODE is a result pointer adjusting thunk. */
+#define DECL_RESULT_THUNK_P(NODE) \
+ (DECL_THUNK_P (NODE) && !LANG_DECL_FN_CHECK (NODE)->this_thunk_p)
+
+/* Nonzero if NODE is a FUNCTION_DECL, but not a thunk. */
+#define DECL_NON_THUNK_FUNCTION_P(NODE) \
+ (TREE_CODE (NODE) == FUNCTION_DECL && !DECL_THUNK_P (NODE))
+
+/* Nonzero if NODE is `extern "C"'. */
+#define DECL_EXTERN_C_P(NODE) \
+ (DECL_LANGUAGE (NODE) == lang_c)
+
+/* Nonzero if NODE is an `extern "C"' function. */
+#define DECL_EXTERN_C_FUNCTION_P(NODE) \
+ (DECL_NON_THUNK_FUNCTION_P (NODE) && DECL_EXTERN_C_P (NODE))
+
+/* True iff DECL is an entity with vague linkage whose definition is
+ available in this translation unit. */
+#define DECL_REPO_AVAILABLE_P(NODE) \
+ (DECL_LANG_SPECIFIC (NODE)->u.base.repo_available_p)
+
+/* True if DECL is declared 'constexpr'. */
+#define DECL_DECLARED_CONSTEXPR_P(DECL) \
+ DECL_LANG_FLAG_8 (VAR_OR_FUNCTION_DECL_CHECK (STRIP_TEMPLATE (DECL)))
+
+/* Nonzero if this DECL is the __PRETTY_FUNCTION__ variable in a
+ template function. */
+#define DECL_PRETTY_FUNCTION_P(NODE) \
+ (DECL_NAME (NODE) \
+ && !strcmp (IDENTIFIER_POINTER (DECL_NAME (NODE)), "__PRETTY_FUNCTION__"))
+
+/* Nonzero if the thread-local variable was declared with __thread
+ as opposed to thread_local. */
+#define DECL_GNU_TLS_P(NODE) \
+ (TREE_LANG_FLAG_0 (VAR_DECL_CHECK (NODE)))
+
+/* The _TYPE context in which this _DECL appears. This field holds the
+ class where a virtual function instance is actually defined. */
+#define DECL_CLASS_CONTEXT(NODE) \
+ (DECL_CLASS_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : NULL_TREE)
+
+/* For a non-member friend function, the class (if any) in which this
+ friend was defined. For example, given:
+
+ struct S { friend void f (); };
+
+ the DECL_FRIEND_CONTEXT for `f' will be `S'. */
+#define DECL_FRIEND_CONTEXT(NODE) \
+ ((DECL_DECLARES_FUNCTION_P (NODE) \
+ && DECL_FRIEND_P (NODE) && !DECL_FUNCTION_MEMBER_P (NODE)) \
+ ? LANG_DECL_FN_CHECK (NODE)->context \
+ : NULL_TREE)
+
+/* Set the DECL_FRIEND_CONTEXT for NODE to CONTEXT. */
+#define SET_DECL_FRIEND_CONTEXT(NODE, CONTEXT) \
+ (LANG_DECL_FN_CHECK (NODE)->context = (CONTEXT))
+
+#define CP_DECL_CONTEXT(NODE) \
+ (!DECL_FILE_SCOPE_P (NODE) ? DECL_CONTEXT (NODE) : global_namespace)
+#define CP_TYPE_CONTEXT(NODE) \
+ (!TYPE_FILE_SCOPE_P (NODE) ? TYPE_CONTEXT (NODE) : global_namespace)
+#define FROB_CONTEXT(NODE) \
+ ((NODE) == global_namespace ? DECL_CONTEXT (NODE) : (NODE))
+
+/* 1 iff NODE has namespace scope, including the global namespace. */
+#define DECL_NAMESPACE_SCOPE_P(NODE) \
+ (!DECL_TEMPLATE_PARM_P (NODE) \
+ && TREE_CODE (CP_DECL_CONTEXT (NODE)) == NAMESPACE_DECL)
+
+#define TYPE_NAMESPACE_SCOPE_P(NODE) \
+ (TREE_CODE (CP_TYPE_CONTEXT (NODE)) == NAMESPACE_DECL)
+
+#define NAMESPACE_SCOPE_P(NODE) \
+ ((DECL_P (NODE) && DECL_NAMESPACE_SCOPE_P (NODE)) \
+ || (TYPE_P (NODE) && TYPE_NAMESPACE_SCOPE_P (NODE)))
+
+/* 1 iff NODE is a class member. */
+#define DECL_CLASS_SCOPE_P(NODE) \
+ (DECL_CONTEXT (NODE) && TYPE_P (DECL_CONTEXT (NODE)))
+
+#define TYPE_CLASS_SCOPE_P(NODE) \
+ (TYPE_CONTEXT (NODE) && TYPE_P (TYPE_CONTEXT (NODE)))
+
+/* 1 iff NODE is function-local. */
+#define DECL_FUNCTION_SCOPE_P(NODE) \
+ (DECL_CONTEXT (NODE) \
+ && TREE_CODE (DECL_CONTEXT (NODE)) == FUNCTION_DECL)
+
+#define TYPE_FUNCTION_SCOPE_P(NODE) \
+ (TYPE_CONTEXT (NODE) && TREE_CODE (TYPE_CONTEXT (NODE)) == FUNCTION_DECL)
+
+/* 1 iff VAR_DECL node NODE is a type-info decl. This flag is set for
+ both the primary typeinfo object and the associated NTBS name. */
+#define DECL_TINFO_P(NODE) TREE_LANG_FLAG_4 (VAR_DECL_CHECK (NODE))
+
+/* 1 iff VAR_DECL node NODE is virtual table or VTT. */
+#define DECL_VTABLE_OR_VTT_P(NODE) TREE_LANG_FLAG_5 (VAR_DECL_CHECK (NODE))
+
+/* 1 iff FUNCTION_TYPE or METHOD_TYPE has a ref-qualifier (either & or &&). */
+#define FUNCTION_REF_QUALIFIED(NODE) \
+ TREE_LANG_FLAG_4 (FUNC_OR_METHOD_CHECK (NODE))
+
+/* 1 iff FUNCTION_TYPE or METHOD_TYPE has &&-ref-qualifier. */
+#define FUNCTION_RVALUE_QUALIFIED(NODE) \
+ TREE_LANG_FLAG_5 (FUNC_OR_METHOD_CHECK (NODE))
+
+/* Returns 1 iff VAR_DECL is a construction virtual table.
+ DECL_VTABLE_OR_VTT_P will be true in this case and must be checked
+ before using this macro. */
+#define DECL_CONSTRUCTION_VTABLE_P(NODE) \
+ TREE_LANG_FLAG_6 (VAR_DECL_CHECK (NODE))
+
+/* 1 iff NODE is function-local, but for types. */
+#define LOCAL_CLASS_P(NODE) \
+ (decl_function_context (TYPE_MAIN_DECL (NODE)) != NULL_TREE)
+
+/* For a NAMESPACE_DECL: the list of using namespace directives
+ The PURPOSE is the used namespace, the value is the namespace
+ that is the common ancestor. */
+#define DECL_NAMESPACE_USING(NODE) DECL_VINDEX (NAMESPACE_DECL_CHECK (NODE))
+
+/* In a NAMESPACE_DECL, the DECL_INITIAL is used to record all users
+ of a namespace, to record the transitive closure of using namespace. */
+#define DECL_NAMESPACE_USERS(NODE) DECL_INITIAL (NAMESPACE_DECL_CHECK (NODE))
+
+/* In a NAMESPACE_DECL, the list of namespaces which have associated
+ themselves with this one. */
+#define DECL_NAMESPACE_ASSOCIATIONS(NODE) \
+ (NAMESPACE_DECL_CHECK (NODE)->decl_non_common.saved_tree)
+
+/* In a NAMESPACE_DECL, points to the original namespace if this is
+ a namespace alias. */
+#define DECL_NAMESPACE_ALIAS(NODE) \
+ DECL_ABSTRACT_ORIGIN (NAMESPACE_DECL_CHECK (NODE))
+#define ORIGINAL_NAMESPACE(NODE) \
+ (DECL_NAMESPACE_ALIAS (NODE) ? DECL_NAMESPACE_ALIAS (NODE) : (NODE))
+
+/* Nonzero if NODE is the std namespace. */
+#define DECL_NAMESPACE_STD_P(NODE) \
+ (TREE_CODE (NODE) == NAMESPACE_DECL \
+ && CP_DECL_CONTEXT (NODE) == global_namespace \
+ && DECL_NAME (NODE) == std_identifier)
+
+/* In a TREE_LIST concatenating using directives, indicate indirect
+ directives */
+#define TREE_INDIRECT_USING(NODE) TREE_LANG_FLAG_0 (TREE_LIST_CHECK (NODE))
+
+/* In a TREE_LIST in an attribute list, indicates that the attribute
+ must be applied at instantiation time. */
+#define ATTR_IS_DEPENDENT(NODE) TREE_LANG_FLAG_0 (TREE_LIST_CHECK (NODE))
+
+/* In a TREE_LIST in the argument of attribute abi_tag, indicates that the tag
+ was inherited from a template parameter, not explicitly indicated. */
+#define ABI_TAG_IMPLICIT(NODE) TREE_LANG_FLAG_0 (TREE_LIST_CHECK (NODE))
+
+extern tree decl_shadowed_for_var_lookup (tree);
+extern void decl_shadowed_for_var_insert (tree, tree);
+
+/* Non zero if this is a using decl for a dependent scope. */
+#define DECL_DEPENDENT_P(NODE) DECL_LANG_FLAG_0 (USING_DECL_CHECK (NODE))
+
+/* The scope named in a using decl. */
+#define USING_DECL_SCOPE(NODE) TREE_TYPE (USING_DECL_CHECK (NODE))
+
+/* The decls named by a using decl. */
+#define USING_DECL_DECLS(NODE) DECL_INITIAL (USING_DECL_CHECK (NODE))
+
+/* Non zero if the using decl refers to a dependent type. */
+#define USING_DECL_TYPENAME_P(NODE) DECL_LANG_FLAG_1 (USING_DECL_CHECK (NODE))
+
+/* In a VAR_DECL, true if we have a shadowed local variable
+ in the shadowed var table for this VAR_DECL. */
+#define DECL_HAS_SHADOWED_FOR_VAR_P(NODE) \
+ (VAR_DECL_CHECK (NODE)->decl_with_vis.shadowed_for_var_p)
+
+/* In a VAR_DECL for a variable declared in a for statement,
+ this is the shadowed (local) variable. */
+#define DECL_SHADOWED_FOR_VAR(NODE) \
+ (DECL_HAS_SHADOWED_FOR_VAR_P(NODE) ? decl_shadowed_for_var_lookup (NODE) : NULL)
+
+#define SET_DECL_SHADOWED_FOR_VAR(NODE, VAL) \
+ (decl_shadowed_for_var_insert (NODE, VAL))
+
+/* In a FUNCTION_DECL, this is nonzero if this function was defined in
+ the class definition. We have saved away the text of the function,
+ but have not yet processed it. */
+#define DECL_PENDING_INLINE_P(NODE) \
+ (LANG_DECL_FN_CHECK (NODE)->pending_inline_p)
+
+/* If DECL_PENDING_INLINE_P holds, this is the saved text of the
+ function. */
+#define DECL_PENDING_INLINE_INFO(NODE) \
+ (LANG_DECL_FN_CHECK (NODE)->u.pending_inline_info)
+
+/* Nonzero for TYPE_DECL means that it was written 'using name = type'. */
+#define TYPE_DECL_ALIAS_P(NODE) \
+ DECL_LANG_FLAG_6 (TYPE_DECL_CHECK (NODE))
+
+/* Nonzero for a type which is an alias for another type; i.e, a type
+ which declaration was written 'using name-of-type =
+ another-type'. */
+#define TYPE_ALIAS_P(NODE) \
+ (TYPE_P (NODE) \
+ && TYPE_NAME (NODE) \
+ && TREE_CODE (TYPE_NAME (NODE)) == TYPE_DECL \
+ && TYPE_DECL_ALIAS_P (TYPE_NAME (NODE)))
+
+/* For a class type: if this structure has many fields, we'll sort them
+ and put them into a TREE_VEC. */
+#define CLASSTYPE_SORTED_FIELDS(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->sorted_fields)
+
+/* If non-NULL for a VAR_DECL, FUNCTION_DECL, TYPE_DECL or
+ TEMPLATE_DECL, the entity is either a template specialization (if
+ DECL_USE_TEMPLATE is nonzero) or the abstract instance of the
+ template itself.
+
+ In either case, DECL_TEMPLATE_INFO is a TREE_LIST, whose
+ TREE_PURPOSE is the TEMPLATE_DECL of which this entity is a
+ specialization or abstract instance. The TREE_VALUE is the
+ template arguments used to specialize the template.
+
+ Consider:
+
+ template <typename T> struct S { friend void f(T) {} };
+
+ In this case, S<int>::f is, from the point of view of the compiler,
+ an instantiation of a template -- but, from the point of view of
+ the language, each instantiation of S results in a wholly unrelated
+ global function f. In this case, DECL_TEMPLATE_INFO for S<int>::f
+ will be non-NULL, but DECL_USE_TEMPLATE will be zero. */
+#define DECL_TEMPLATE_INFO(NODE) \
+ (DECL_LANG_SPECIFIC (VAR_TEMPL_TYPE_FIELD_OR_FUNCTION_DECL_CHECK (NODE)) \
+ ->u.min.template_info)
+
+/* For a VAR_DECL, indicates that the variable is actually a
+ non-static data member of anonymous union that has been promoted to
+ variable status. */
+#define DECL_ANON_UNION_VAR_P(NODE) \
+ (DECL_LANG_FLAG_4 (VAR_DECL_CHECK (NODE)))
+
+/* Template information for a RECORD_TYPE or UNION_TYPE. */
+#define CLASSTYPE_TEMPLATE_INFO(NODE) \
+ (LANG_TYPE_CLASS_CHECK (RECORD_OR_UNION_CHECK (NODE))->template_info)
+
+/* Template information for an ENUMERAL_TYPE. Although an enumeration may
+ not be a primary template, it may be declared within the scope of a
+ primary template and the enumeration constants may depend on
+ non-type template parameters. */
+#define ENUM_TEMPLATE_INFO(NODE) \
+ (TYPE_LANG_SLOT_1 (ENUMERAL_TYPE_CHECK (NODE)))
+
+/* Template information for a template template parameter. */
+#define TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO(NODE) \
+ (LANG_TYPE_CLASS_CHECK (BOUND_TEMPLATE_TEMPLATE_PARM_TYPE_CHECK (NODE)) \
+ ->template_info)
+
+/* Template information for an ENUMERAL_, RECORD_, UNION_TYPE, or
+ BOUND_TEMPLATE_TEMPLATE_PARM type. Note that if NODE is a
+ specialization of an alias template, this accessor returns the
+ template info for the alias template, not the one (if any) for the
+ template of the underlying type. */
+#define TYPE_TEMPLATE_INFO(NODE) \
+ ((TYPE_ALIAS_P (NODE) && DECL_LANG_SPECIFIC (TYPE_NAME (NODE))) \
+ ? (DECL_LANG_SPECIFIC (TYPE_NAME (NODE)) \
+ ? DECL_TEMPLATE_INFO (TYPE_NAME (NODE)) \
+ : NULL_TREE) \
+ : ((TREE_CODE (NODE) == ENUMERAL_TYPE) \
+ ? ENUM_TEMPLATE_INFO (NODE) \
+ : ((TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM) \
+ ? TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO (NODE) \
+ : (CLASS_TYPE_P (NODE) \
+ ? CLASSTYPE_TEMPLATE_INFO (NODE) \
+ : NULL_TREE))))
+
+
+/* Set the template information for an ENUMERAL_, RECORD_, or
+ UNION_TYPE to VAL. */
+#define SET_TYPE_TEMPLATE_INFO(NODE, VAL) \
+ (TREE_CODE (NODE) == ENUMERAL_TYPE \
+ ? (ENUM_TEMPLATE_INFO (NODE) = (VAL)) \
+ : ((CLASS_TYPE_P (NODE) && !TYPE_ALIAS_P (NODE)) \
+ ? (CLASSTYPE_TEMPLATE_INFO (NODE) = (VAL)) \
+ : (DECL_TEMPLATE_INFO (TYPE_NAME (NODE)) = (VAL))))
+
+#define TI_TEMPLATE(NODE) TREE_TYPE (TEMPLATE_INFO_CHECK (NODE))
+#define TI_ARGS(NODE) TREE_CHAIN (TEMPLATE_INFO_CHECK (NODE))
+#define TI_PENDING_TEMPLATE_FLAG(NODE) TREE_LANG_FLAG_1 (NODE)
+/* For a given TREE_VEC containing a template argument list,
+ this property contains the number of arguments that are not
+ defaulted. */
+#define NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) TREE_CHAIN (TREE_VEC_CHECK (NODE))
+/* Below are the setter and getter of the NON_DEFAULT_TEMPLATE_ARGS_COUNT
+ property. */
+#define SET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE, INT_VALUE) \
+ NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) = build_int_cst (NULL_TREE, INT_VALUE)
+#ifdef ENABLE_CHECKING
+#define GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) \
+ int_cst_value (NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE))
+#else
+#define GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT(NODE) \
+ NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE) \
+ ? int_cst_value (NON_DEFAULT_TEMPLATE_ARGS_COUNT (NODE)) \
+ : TREE_VEC_LENGTH (INNERMOST_TEMPLATE_ARGS (NODE))
+#endif
+/* The list of typedefs - used in the template - that need
+ access checking at template instantiation time.
+
+ FIXME this should be associated with the TEMPLATE_DECL, not the
+ TEMPLATE_INFO. */
+#define TI_TYPEDEFS_NEEDING_ACCESS_CHECKING(NODE) \
+ ((struct tree_template_info*)TEMPLATE_INFO_CHECK \
+ (NODE))->typedefs_needing_access_checking
+
+/* We use TREE_VECs to hold template arguments. If there is only one
+ level of template arguments, then the TREE_VEC contains the
+ arguments directly. If there is more than one level of template
+ arguments, then each entry in the TREE_VEC is itself a TREE_VEC,
+ containing the template arguments for a single level. The first
+ entry in the outer TREE_VEC is the outermost level of template
+ parameters; the last is the innermost.
+
+ It is incorrect to ever form a template argument vector containing
+ only one level of arguments, but which is a TREE_VEC containing as
+ its only entry the TREE_VEC for that level.
+
+ For each TREE_VEC containing the template arguments for a single
+ level, it's possible to get or set the number of non defaulted
+ template arguments by using the accessor macros
+ GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT or
+ SET_NON_DEFAULT_TEMPLATE_ARGS_COUNT. */
+
+/* Nonzero if the template arguments is actually a vector of vectors,
+ rather than just a vector. */
+#define TMPL_ARGS_HAVE_MULTIPLE_LEVELS(NODE) \
+ (NODE && TREE_VEC_LENGTH (NODE) && TREE_VEC_ELT (NODE, 0) \
+ && TREE_CODE (TREE_VEC_ELT (NODE, 0)) == TREE_VEC)
+
+/* The depth of a template argument vector. When called directly by
+ the parser, we use a TREE_LIST rather than a TREE_VEC to represent
+ template arguments. In fact, we may even see NULL_TREE if there
+ are no template arguments. In both of those cases, there is only
+ one level of template arguments. */
+#define TMPL_ARGS_DEPTH(NODE) \
+ (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (NODE) ? TREE_VEC_LENGTH (NODE) : 1)
+
+/* The LEVELth level of the template ARGS. The outermost level of
+ args is level 1, not level 0. */
+#define TMPL_ARGS_LEVEL(ARGS, LEVEL) \
+ (TMPL_ARGS_HAVE_MULTIPLE_LEVELS (ARGS) \
+ ? TREE_VEC_ELT (ARGS, (LEVEL) - 1) : (ARGS))
+
+/* Set the LEVELth level of the template ARGS to VAL. This macro does
+ not work with single-level argument vectors. */
+#define SET_TMPL_ARGS_LEVEL(ARGS, LEVEL, VAL) \
+ (TREE_VEC_ELT (ARGS, (LEVEL) - 1) = (VAL))
+
+/* Accesses the IDXth parameter in the LEVELth level of the ARGS. */
+#define TMPL_ARG(ARGS, LEVEL, IDX) \
+ (TREE_VEC_ELT (TMPL_ARGS_LEVEL (ARGS, LEVEL), IDX))
+
+/* Given a single level of template arguments in NODE, return the
+ number of arguments. */
+#define NUM_TMPL_ARGS(NODE) \
+ (TREE_VEC_LENGTH (NODE))
+
+/* Returns the innermost level of template arguments in ARGS. */
+#define INNERMOST_TEMPLATE_ARGS(NODE) \
+ (get_innermost_template_args ((NODE), 1))
+
+/* The number of levels of template parameters given by NODE. */
+#define TMPL_PARMS_DEPTH(NODE) \
+ ((HOST_WIDE_INT) TREE_INT_CST_LOW (TREE_PURPOSE (NODE)))
+
+/* The TEMPLATE_DECL instantiated or specialized by NODE. This
+ TEMPLATE_DECL will be the immediate parent, not the most general
+ template. For example, in:
+
+ template <class T> struct S { template <class U> void f(U); }
+
+ the FUNCTION_DECL for S<int>::f<double> will have, as its
+ DECL_TI_TEMPLATE, `template <class U> S<int>::f<U>'.
+
+ As a special case, for a member friend template of a template
+ class, this value will not be a TEMPLATE_DECL, but rather an
+ IDENTIFIER_NODE or OVERLOAD indicating the name of the template and
+ any explicit template arguments provided. For example, in:
+
+ template <class T> struct S { friend void f<int>(int, double); }
+
+ the DECL_TI_TEMPLATE will be an IDENTIFIER_NODE for `f' and the
+ DECL_TI_ARGS will be {int}.
+
+ For a FIELD_DECL with a non-static data member initializer, this value
+ is the FIELD_DECL it was instantiated from. */
+#define DECL_TI_TEMPLATE(NODE) TI_TEMPLATE (DECL_TEMPLATE_INFO (NODE))
+
+/* The template arguments used to obtain this decl from the most
+ general form of DECL_TI_TEMPLATE. For the example given for
+ DECL_TI_TEMPLATE, the DECL_TI_ARGS will be {int, double}. These
+ are always the full set of arguments required to instantiate this
+ declaration from the most general template specialized here. */
+#define DECL_TI_ARGS(NODE) TI_ARGS (DECL_TEMPLATE_INFO (NODE))
+
+/* The TEMPLATE_DECL associated with NODE, a class type. Even if NODE
+ will be generated from a partial specialization, the TEMPLATE_DECL
+ referred to here will be the original template. For example,
+ given:
+
+ template <typename T> struct S {};
+ template <typename T> struct S<T*> {};
+
+ the CLASSTPYE_TI_TEMPLATE for S<int*> will be S, not the S<T*>. */
+#define CLASSTYPE_TI_TEMPLATE(NODE) TI_TEMPLATE (CLASSTYPE_TEMPLATE_INFO (NODE))
+#define CLASSTYPE_TI_ARGS(NODE) TI_ARGS (CLASSTYPE_TEMPLATE_INFO (NODE))
+
+/* For a template instantiation TYPE, returns the TYPE corresponding
+ to the primary template. Otherwise returns TYPE itself. */
+#define CLASSTYPE_PRIMARY_TEMPLATE_TYPE(TYPE) \
+ ((CLASSTYPE_USE_TEMPLATE ((TYPE)) \
+ && !CLASSTYPE_TEMPLATE_SPECIALIZATION ((TYPE))) \
+ ? TREE_TYPE (DECL_TEMPLATE_RESULT (DECL_PRIMARY_TEMPLATE \
+ (CLASSTYPE_TI_TEMPLATE ((TYPE))))) \
+ : (TYPE))
+
+/* Like CLASS_TI_TEMPLATE, but also works for ENUMERAL_TYPEs. */
+#define TYPE_TI_TEMPLATE(NODE) \
+ (TI_TEMPLATE (TYPE_TEMPLATE_INFO (NODE)))
+
+/* Like DECL_TI_ARGS, but for an ENUMERAL_, RECORD_, or UNION_TYPE. */
+#define TYPE_TI_ARGS(NODE) \
+ (TI_ARGS (TYPE_TEMPLATE_INFO (NODE)))
+
+#define INNERMOST_TEMPLATE_PARMS(NODE) TREE_VALUE (NODE)
+
+/* Nonzero if NODE (a TEMPLATE_DECL) is a member template, in the
+ sense of [temp.mem]. */
+#define DECL_MEMBER_TEMPLATE_P(NODE) \
+ (DECL_LANG_FLAG_1 (TEMPLATE_DECL_CHECK (NODE)))
+
+/* Nonzero if the NODE corresponds to the template parameters for a
+ member template, whose inline definition is being processed after
+ the class definition is complete. */
+#define TEMPLATE_PARMS_FOR_INLINE(NODE) TREE_LANG_FLAG_1 (NODE)
+
+/* Determine if a declaration (PARM_DECL or FIELD_DECL) is a pack. */
+#define DECL_PACK_P(NODE) \
+ (DECL_P (NODE) && PACK_EXPANSION_P (TREE_TYPE (NODE)))
+
+/* Determines if NODE is an expansion of one or more parameter packs,
+ e.g., a TYPE_PACK_EXPANSION or EXPR_PACK_EXPANSION. */
+#define PACK_EXPANSION_P(NODE) \
+ (TREE_CODE (NODE) == TYPE_PACK_EXPANSION \
+ || TREE_CODE (NODE) == EXPR_PACK_EXPANSION)
+
+/* Extracts the type or expression pattern from a TYPE_PACK_EXPANSION or
+ EXPR_PACK_EXPANSION. */
+#define PACK_EXPANSION_PATTERN(NODE) \
+ (TREE_CODE (NODE) == TYPE_PACK_EXPANSION? TREE_TYPE (NODE) \
+ : TREE_OPERAND (NODE, 0))
+
+/* Sets the type or expression pattern for a TYPE_PACK_EXPANSION or
+ EXPR_PACK_EXPANSION. */
+#define SET_PACK_EXPANSION_PATTERN(NODE,VALUE) \
+ if (TREE_CODE (NODE) == TYPE_PACK_EXPANSION) \
+ TREE_TYPE (NODE) = VALUE; \
+ else \
+ TREE_OPERAND (NODE, 0) = VALUE
+
+/* The list of parameter packs used in the PACK_EXPANSION_* node. The
+ TREE_VALUE of each TREE_LIST contains the parameter packs. */
+#define PACK_EXPANSION_PARAMETER_PACKS(NODE) \
+ *(TREE_CODE (NODE) == EXPR_PACK_EXPANSION \
+ ? &TREE_OPERAND (NODE, 1) \
+ : &TYPE_MINVAL (TYPE_PACK_EXPANSION_CHECK (NODE)))
+
+/* Any additional template args to be applied when substituting into
+ the pattern, set by tsubst_pack_expansion for partial instantiations. */
+#define PACK_EXPANSION_EXTRA_ARGS(NODE) \
+ *(TREE_CODE (NODE) == TYPE_PACK_EXPANSION \
+ ? &TYPE_MAXVAL (NODE) \
+ : &TREE_OPERAND ((NODE), 2))
+
+/* True iff this pack expansion is within a function context. */
+#define PACK_EXPANSION_LOCAL_P(NODE) TREE_LANG_FLAG_0 (NODE)
+
+/* Determine if this is an argument pack. */
+#define ARGUMENT_PACK_P(NODE) \
+ (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK \
+ || TREE_CODE (NODE) == NONTYPE_ARGUMENT_PACK)
+
+/* The arguments stored in an argument pack. Arguments are stored in a
+ TREE_VEC, which may have length zero. */
+#define ARGUMENT_PACK_ARGS(NODE) \
+ (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK? TREE_TYPE (NODE) \
+ : TREE_OPERAND (NODE, 0))
+
+/* Set the arguments stored in an argument pack. VALUE must be a
+ TREE_VEC. */
+#define SET_ARGUMENT_PACK_ARGS(NODE,VALUE) \
+ if (TREE_CODE (NODE) == TYPE_ARGUMENT_PACK) \
+ TREE_TYPE (NODE) = VALUE; \
+ else \
+ TREE_OPERAND (NODE, 0) = VALUE
+
+/* Whether the argument pack is "incomplete", meaning that more
+ arguments can still be deduced. Incomplete argument packs are only
+ used when the user has provided an explicit template argument list
+ for a variadic function template. Some of the explicit template
+ arguments will be placed into the beginning of the argument pack,
+ but additional arguments might still be deduced. */
+#define ARGUMENT_PACK_INCOMPLETE_P(NODE) \
+ TREE_ADDRESSABLE (ARGUMENT_PACK_ARGS (NODE))
+
+/* When ARGUMENT_PACK_INCOMPLETE_P, stores the explicit template
+ arguments used to fill this pack. */
+#define ARGUMENT_PACK_EXPLICIT_ARGS(NODE) \
+ TREE_TYPE (ARGUMENT_PACK_ARGS (NODE))
+
+/* In an ARGUMENT_PACK_SELECT, the argument pack from which an
+ argument will be selected. */
+#define ARGUMENT_PACK_SELECT_FROM_PACK(NODE) \
+ (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->argument_pack)
+
+/* In an ARGUMENT_PACK_SELECT, the index of the argument we want to
+ select. */
+#define ARGUMENT_PACK_SELECT_INDEX(NODE) \
+ (((struct tree_argument_pack_select *)ARGUMENT_PACK_SELECT_CHECK (NODE))->index)
+
+/* In an ARGUMENT_PACK_SELECT, the actual underlying argument that the
+ ARGUMENT_PACK_SELECT represents. */
+#define ARGUMENT_PACK_SELECT_ARG(NODE) \
+ TREE_VEC_ELT (ARGUMENT_PACK_ARGS (ARGUMENT_PACK_SELECT_FROM_PACK (NODE)), \
+ ARGUMENT_PACK_SELECT_INDEX (NODE));
+
+/* In a FUNCTION_DECL, the saved language-specific per-function data. */
+#define DECL_SAVED_FUNCTION_DATA(NODE) \
+ (LANG_DECL_FN_CHECK (FUNCTION_DECL_CHECK (NODE)) \
+ ->u.saved_language_function)
+
+/* True if NODE is an implicit INDIRECT_EXPR from convert_from_reference. */
+#define REFERENCE_REF_P(NODE) \
+ (INDIRECT_REF_P (NODE) \
+ && TREE_TYPE (TREE_OPERAND (NODE, 0)) \
+ && (TREE_CODE (TREE_TYPE (TREE_OPERAND ((NODE), 0))) \
+ == REFERENCE_TYPE))
+
+/* True if NODE is a REFERENCE_TYPE which is OK to instantiate to be a
+ reference to VLA type, because it's used for VLA capture. */
+#define REFERENCE_VLA_OK(NODE) \
+ (TYPE_LANG_FLAG_5 (REFERENCE_TYPE_CHECK (NODE)))
+
+#define NEW_EXPR_USE_GLOBAL(NODE) \
+ TREE_LANG_FLAG_0 (NEW_EXPR_CHECK (NODE))
+#define DELETE_EXPR_USE_GLOBAL(NODE) \
+ TREE_LANG_FLAG_0 (DELETE_EXPR_CHECK (NODE))
+#define DELETE_EXPR_USE_VEC(NODE) \
+ TREE_LANG_FLAG_1 (DELETE_EXPR_CHECK (NODE))
+
+/* Indicates that this is a non-dependent COMPOUND_EXPR which will
+ resolve to a function call. */
+#define COMPOUND_EXPR_OVERLOADED(NODE) \
+ TREE_LANG_FLAG_0 (COMPOUND_EXPR_CHECK (NODE))
+
+/* In a CALL_EXPR appearing in a template, true if Koenig lookup
+ should be performed at instantiation time. */
+#define KOENIG_LOOKUP_P(NODE) TREE_LANG_FLAG_0 (CALL_EXPR_CHECK (NODE))
+
+/* Indicates whether a string literal has been parenthesized. Such
+ usages are disallowed in certain circumstances. */
+
+#define PAREN_STRING_LITERAL_P(NODE) \
+ TREE_LANG_FLAG_0 (STRING_CST_CHECK (NODE))
+
+/* Indicates whether a COMPONENT_REF has been parenthesized. Currently
+ only set some of the time in C++14 mode. */
+
+#define REF_PARENTHESIZED_P(NODE) \
+ TREE_LANG_FLAG_2 (COMPONENT_REF_CHECK (NODE))
+
+/* Nonzero if this AGGR_INIT_EXPR provides for initialization via a
+ constructor call, rather than an ordinary function call. */
+#define AGGR_INIT_VIA_CTOR_P(NODE) \
+ TREE_LANG_FLAG_0 (AGGR_INIT_EXPR_CHECK (NODE))
+
+/* Nonzero if expanding this AGGR_INIT_EXPR should first zero-initialize
+ the object. */
+#define AGGR_INIT_ZERO_FIRST(NODE) \
+ TREE_LANG_FLAG_2 (AGGR_INIT_EXPR_CHECK (NODE))
+
+/* AGGR_INIT_EXPR accessors. These are equivalent to the CALL_EXPR
+ accessors, except for AGGR_INIT_EXPR_SLOT (which takes the place of
+ CALL_EXPR_STATIC_CHAIN). */
+
+#define AGGR_INIT_EXPR_FN(NODE) TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 1)
+#define AGGR_INIT_EXPR_SLOT(NODE) \
+ TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 2)
+#define AGGR_INIT_EXPR_ARG(NODE, I) \
+ TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), (I) + 3)
+#define aggr_init_expr_nargs(NODE) (VL_EXP_OPERAND_LENGTH(NODE) - 3)
+
+/* AGGR_INIT_EXPR_ARGP returns a pointer to the argument vector for NODE.
+ We can't use &AGGR_INIT_EXPR_ARG (NODE, 0) because that will complain if
+ the argument count is zero when checking is enabled. Instead, do
+ the pointer arithmetic to advance past the 3 fixed operands in a
+ AGGR_INIT_EXPR. That produces a valid pointer to just past the end of
+ the operand array, even if it's not valid to dereference it. */
+#define AGGR_INIT_EXPR_ARGP(NODE) \
+ (&(TREE_OPERAND (AGGR_INIT_EXPR_CHECK (NODE), 0)) + 3)
+
+/* Abstract iterators for AGGR_INIT_EXPRs. */
+
+/* Structure containing iterator state. */
+typedef struct aggr_init_expr_arg_iterator_d {
+ tree t; /* the aggr_init_expr */
+ int n; /* argument count */
+ int i; /* next argument index */
+} aggr_init_expr_arg_iterator;
+
+/* Initialize the abstract argument list iterator object ITER with the
+ arguments from AGGR_INIT_EXPR node EXP. */
+inline void
+init_aggr_init_expr_arg_iterator (tree exp,
+ aggr_init_expr_arg_iterator *iter)
+{
+ iter->t = exp;
+ iter->n = aggr_init_expr_nargs (exp);
+ iter->i = 0;
+}
+
+/* Return the next argument from abstract argument list iterator object ITER,
+ and advance its state. Return NULL_TREE if there are no more arguments. */
+inline tree
+next_aggr_init_expr_arg (aggr_init_expr_arg_iterator *iter)
+{
+ tree result;
+ if (iter->i >= iter->n)
+ return NULL_TREE;
+ result = AGGR_INIT_EXPR_ARG (iter->t, iter->i);
+ iter->i++;
+ return result;
+}
+
+/* Initialize the abstract argument list iterator object ITER, then advance
+ past and return the first argument. Useful in for expressions, e.g.
+ for (arg = first_aggr_init_expr_arg (exp, &iter); arg;
+ arg = next_aggr_init_expr_arg (&iter)) */
+inline tree
+first_aggr_init_expr_arg (tree exp, aggr_init_expr_arg_iterator *iter)
+{
+ init_aggr_init_expr_arg_iterator (exp, iter);
+ return next_aggr_init_expr_arg (iter);
+}
+
+/* Test whether there are more arguments in abstract argument list iterator
+ ITER, without changing its state. */
+inline bool
+more_aggr_init_expr_args_p (const aggr_init_expr_arg_iterator *iter)
+{
+ return (iter->i < iter->n);
+}
+
+/* Iterate through each argument ARG of AGGR_INIT_EXPR CALL, using variable
+ ITER (of type aggr_init_expr_arg_iterator) to hold the iteration state. */
+#define FOR_EACH_AGGR_INIT_EXPR_ARG(arg, iter, call) \
+ for ((arg) = first_aggr_init_expr_arg ((call), &(iter)); (arg); \
+ (arg) = next_aggr_init_expr_arg (&(iter)))
+
+/* VEC_INIT_EXPR accessors. */
+#define VEC_INIT_EXPR_SLOT(NODE) TREE_OPERAND (VEC_INIT_EXPR_CHECK (NODE), 0)
+#define VEC_INIT_EXPR_INIT(NODE) TREE_OPERAND (VEC_INIT_EXPR_CHECK (NODE), 1)
+
+/* Indicates that a VEC_INIT_EXPR is a potential constant expression.
+ Only set when the current function is constexpr. */
+#define VEC_INIT_EXPR_IS_CONSTEXPR(NODE) \
+ TREE_LANG_FLAG_0 (VEC_INIT_EXPR_CHECK (NODE))
+
+/* Indicates that a VEC_INIT_EXPR is expressing value-initialization. */
+#define VEC_INIT_EXPR_VALUE_INIT(NODE) \
+ TREE_LANG_FLAG_1 (VEC_INIT_EXPR_CHECK (NODE))
+
+/* The condition under which this MUST_NOT_THROW_EXPR actually blocks
+ exceptions. NULL_TREE means 'true'. */
+#define MUST_NOT_THROW_COND(NODE) \
+ TREE_OPERAND (MUST_NOT_THROW_EXPR_CHECK (NODE), 1)
+
+/* The TYPE_MAIN_DECL for a class template type is a TYPE_DECL, not a
+ TEMPLATE_DECL. This macro determines whether or not a given class
+ type is really a template type, as opposed to an instantiation or
+ specialization of one. */
+#define CLASSTYPE_IS_TEMPLATE(NODE) \
+ (CLASSTYPE_TEMPLATE_INFO (NODE) \
+ && !CLASSTYPE_USE_TEMPLATE (NODE) \
+ && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE)))
+
+/* The name used by the user to name the typename type. Typically,
+ this is an IDENTIFIER_NODE, and the same as the DECL_NAME on the
+ corresponding TYPE_DECL. However, this may also be a
+ TEMPLATE_ID_EXPR if we had something like `typename X::Y<T>'. */
+#define TYPENAME_TYPE_FULLNAME(NODE) \
+ (TYPE_VALUES_RAW (TYPENAME_TYPE_CHECK (NODE)))
+
+/* True if a TYPENAME_TYPE was declared as an "enum". */
+#define TYPENAME_IS_ENUM_P(NODE) \
+ (TREE_LANG_FLAG_0 (TYPENAME_TYPE_CHECK (NODE)))
+
+/* True if a TYPENAME_TYPE was declared as a "class", "struct", or
+ "union". */
+#define TYPENAME_IS_CLASS_P(NODE) \
+ (TREE_LANG_FLAG_1 (TYPENAME_TYPE_CHECK (NODE)))
+
+/* True if a TYPENAME_TYPE is in the process of being resolved. */
+#define TYPENAME_IS_RESOLVING_P(NODE) \
+ (TREE_LANG_FLAG_2 (TYPENAME_TYPE_CHECK (NODE)))
+
+/* [class.virtual]
+
+ A class that declares or inherits a virtual function is called a
+ polymorphic class. */
+#define TYPE_POLYMORPHIC_P(NODE) (TREE_LANG_FLAG_2 (NODE))
+
+/* Nonzero if this class has a virtual function table pointer. */
+#define TYPE_CONTAINS_VPTR_P(NODE) \
+ (TYPE_POLYMORPHIC_P (NODE) || CLASSTYPE_VBASECLASSES (NODE))
+
+/* This flag is true of a local VAR_DECL if it was declared in a for
+ statement, but we are no longer in the scope of the for. */
+#define DECL_DEAD_FOR_LOCAL(NODE) DECL_LANG_FLAG_7 (VAR_DECL_CHECK (NODE))
+
+/* This flag is set on a VAR_DECL that is a DECL_DEAD_FOR_LOCAL
+ if we already emitted a warning about using it. */
+#define DECL_ERROR_REPORTED(NODE) DECL_LANG_FLAG_0 (VAR_DECL_CHECK (NODE))
+
+/* Nonzero if NODE is a FUNCTION_DECL (for a function with global
+ scope) declared in a local scope. */
+#define DECL_LOCAL_FUNCTION_P(NODE) \
+ DECL_LANG_FLAG_0 (FUNCTION_DECL_CHECK (NODE))
+
+/* True if NODE was declared with auto in its return type, but it has
+ started compilation and so the return type might have been changed by
+ return type deduction; its declared return type should be found in
+ DECL_STRUCT_FUNCTION(NODE)->language->x_auto_return_pattern. */
+#define FNDECL_USED_AUTO(NODE) \
+ TREE_LANG_FLAG_2 (FUNCTION_DECL_CHECK (NODE))
+
+/* Nonzero if NODE is a DECL which we know about but which has not
+ been explicitly declared, such as a built-in function or a friend
+ declared inside a class. In the latter case DECL_HIDDEN_FRIEND_P
+ will be set. */
+#define DECL_ANTICIPATED(NODE) \
+ (DECL_LANG_SPECIFIC (TYPE_FUNCTION_OR_TEMPLATE_DECL_CHECK (NODE)) \
+ ->u.base.anticipated_p)
+
+/* Nonzero if NODE is a FUNCTION_DECL which was declared as a friend
+ within a class but has not been declared in the surrounding scope.
+ The function is invisible except via argument dependent lookup. */
+#define DECL_HIDDEN_FRIEND_P(NODE) \
+ (LANG_DECL_FN_CHECK (DECL_COMMON_CHECK (NODE))->hidden_friend_p)
+
+/* Nonzero if NODE is an artificial FUNCTION_DECL for
+ #pragma omp declare reduction. */
+#define DECL_OMP_DECLARE_REDUCTION_P(NODE) \
+ (LANG_DECL_FN_CHECK (DECL_COMMON_CHECK (NODE))->omp_declare_reduction_p)
+
+/* Nonzero if DECL has been declared threadprivate by
+ #pragma omp threadprivate. */
+#define CP_DECL_THREADPRIVATE_P(DECL) \
+ (DECL_LANG_SPECIFIC (VAR_DECL_CHECK (DECL))->u.base.threadprivate_or_deleted_p)
+
+/* Nonzero if DECL was declared with '= delete'. */
+#define DECL_DELETED_FN(DECL) \
+ (LANG_DECL_FN_CHECK (DECL)->min.base.threadprivate_or_deleted_p)
+
+/* Nonzero if DECL was declared with '= default' (maybe implicitly). */
+#define DECL_DEFAULTED_FN(DECL) \
+ (LANG_DECL_FN_CHECK (DECL)->defaulted_p)
+
+/* Nonzero if DECL is explicitly defaulted in the class body. */
+#define DECL_DEFAULTED_IN_CLASS_P(DECL) \
+ (DECL_DEFAULTED_FN (DECL) && DECL_INITIALIZED_IN_CLASS_P (DECL))
+/* Nonzero if DECL was defaulted outside the class body. */
+#define DECL_DEFAULTED_OUTSIDE_CLASS_P(DECL) \
+ (DECL_DEFAULTED_FN (DECL) \
+ && !(DECL_ARTIFICIAL (DECL) || DECL_INITIALIZED_IN_CLASS_P (DECL)))
+
+/* Record whether a typedef for type `int' was actually `signed int'. */
+#define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP)
+
+/* Returns nonzero if DECL has external linkage, as specified by the
+ language standard. (This predicate may hold even when the
+ corresponding entity is not actually given external linkage in the
+ object file; see decl_linkage for details.) */
+#define DECL_EXTERNAL_LINKAGE_P(DECL) \
+ (decl_linkage (DECL) == lk_external)
+
+/* Keep these codes in ascending code order. */
+
+#define INTEGRAL_CODE_P(CODE) \
+ ((CODE) == ENUMERAL_TYPE \
+ || (CODE) == BOOLEAN_TYPE \
+ || (CODE) == INTEGER_TYPE)
+
+/* [basic.fundamental]
+
+ Types bool, char, wchar_t, and the signed and unsigned integer types
+ are collectively called integral types.
+
+ Note that INTEGRAL_TYPE_P, as defined in tree.h, allows enumeration
+ types as well, which is incorrect in C++. Keep these checks in
+ ascending code order. */
+#define CP_INTEGRAL_TYPE_P(TYPE) \
+ (TREE_CODE (TYPE) == BOOLEAN_TYPE \
+ || TREE_CODE (TYPE) == INTEGER_TYPE)
+
+/* Returns true if TYPE is an integral or enumeration name. Keep
+ these checks in ascending code order. */
+#define INTEGRAL_OR_ENUMERATION_TYPE_P(TYPE) \
+ (TREE_CODE (TYPE) == ENUMERAL_TYPE || CP_INTEGRAL_TYPE_P (TYPE))
+
+/* Returns true if TYPE is an integral or unscoped enumeration type. */
+#define INTEGRAL_OR_UNSCOPED_ENUMERATION_TYPE_P(TYPE) \
+ (UNSCOPED_ENUM_P (TYPE) || CP_INTEGRAL_TYPE_P (TYPE))
+
+/* True if the class type TYPE is a literal type. */
+#define CLASSTYPE_LITERAL_P(TYPE) \
+ (LANG_TYPE_CLASS_CHECK (TYPE)->is_literal)
+
+/* [basic.fundamental]
+
+ Integral and floating types are collectively called arithmetic
+ types.
+
+ As a GNU extension, we also accept complex types.
+
+ Keep these checks in ascending code order. */
+#define ARITHMETIC_TYPE_P(TYPE) \
+ (CP_INTEGRAL_TYPE_P (TYPE) \
+ || TREE_CODE (TYPE) == REAL_TYPE \
+ || TREE_CODE (TYPE) == COMPLEX_TYPE)
+
+/* True iff TYPE is cv decltype(nullptr). */
+#define NULLPTR_TYPE_P(TYPE) (TREE_CODE (TYPE) == NULLPTR_TYPE)
+
+/* [basic.types]
+
+ Arithmetic types, enumeration types, pointer types,
+ pointer-to-member types, and std::nullptr_t are collectively called
+ scalar types.
+
+ Keep these checks in ascending code order. */
+#define SCALAR_TYPE_P(TYPE) \
+ (TYPE_PTRDATAMEM_P (TYPE) \
+ || TREE_CODE (TYPE) == ENUMERAL_TYPE \
+ || ARITHMETIC_TYPE_P (TYPE) \
+ || TYPE_PTR_P (TYPE) \
+ || TYPE_PTRMEMFUNC_P (TYPE) \
+ || NULLPTR_TYPE_P (TYPE))
+
+/* Determines whether this type is a C++0x scoped enumeration
+ type. Scoped enumerations types are introduced via "enum class" or
+ "enum struct", e.g.,
+
+ enum class Color {
+ Red, Green, Blue
+ };
+
+ Scoped enumeration types are different from normal (unscoped)
+ enumeration types in several ways:
+
+ - The enumerators of a scoped enumeration type are only available
+ within the scope of the enumeration type and not in the
+ enclosing scope. For example, the Red color can be referred to
+ with "Color::Red" but not "Red".
+
+ - Scoped enumerators and enumerations do not implicitly convert
+ to integers or 'bool'.
+
+ - The underlying type of the enum is well-defined. */
+#define SCOPED_ENUM_P(TYPE) \
+ (TREE_CODE (TYPE) == ENUMERAL_TYPE && ENUM_IS_SCOPED (TYPE))
+
+/* Determine whether this is an unscoped enumeration type. */
+#define UNSCOPED_ENUM_P(TYPE) \
+ (TREE_CODE (TYPE) == ENUMERAL_TYPE && !ENUM_IS_SCOPED (TYPE))
+
+/* Set the flag indicating whether an ENUMERAL_TYPE is a C++0x scoped
+ enumeration type (1) or a normal (unscoped) enumeration type
+ (0). */
+#define SET_SCOPED_ENUM_P(TYPE, VAL) \
+ (ENUM_IS_SCOPED (TYPE) = (VAL))
+
+#define SET_OPAQUE_ENUM_P(TYPE, VAL) \
+ (ENUM_IS_OPAQUE (TYPE) = (VAL))
+
+#define OPAQUE_ENUM_P(TYPE) \
+ (TREE_CODE (TYPE) == ENUMERAL_TYPE && ENUM_IS_OPAQUE (TYPE))
+
+/* Determines whether an ENUMERAL_TYPE has an explicit
+ underlying type. */
+#define ENUM_FIXED_UNDERLYING_TYPE_P(NODE) (TYPE_LANG_FLAG_5 (NODE))
+
+/* Returns the underlying type of the given enumeration type. The
+ underlying type is determined in different ways, depending on the
+ properties of the enum:
+
+ - In C++0x, the underlying type can be explicitly specified, e.g.,
+
+ enum E1 : char { ... } // underlying type is char
+
+ - In a C++0x scoped enumeration, the underlying type is int
+ unless otherwises specified:
+
+ enum class E2 { ... } // underlying type is int
+
+ - Otherwise, the underlying type is determined based on the
+ values of the enumerators. In this case, the
+ ENUM_UNDERLYING_TYPE will not be set until after the definition
+ of the enumeration is completed by finish_enum. */
+#define ENUM_UNDERLYING_TYPE(TYPE) \
+ TREE_TYPE (ENUMERAL_TYPE_CHECK (TYPE))
+
+/* [dcl.init.aggr]
+
+ An aggregate is an array or a class with no user-provided
+ constructors, no brace-or-equal-initializers for non-static data
+ members, no private or protected non-static data members, no
+ base classes, and no virtual functions.
+
+ As an extension, we also treat vectors as aggregates. Keep these
+ checks in ascending code order. */
+#define CP_AGGREGATE_TYPE_P(TYPE) \
+ (TREE_CODE (TYPE) == VECTOR_TYPE \
+ ||TREE_CODE (TYPE) == ARRAY_TYPE \
+ || (CLASS_TYPE_P (TYPE) && !CLASSTYPE_NON_AGGREGATE (TYPE)))
+
+/* Nonzero for a class type means that the class type has a
+ user-declared constructor. */
+#define TYPE_HAS_USER_CONSTRUCTOR(NODE) (TYPE_LANG_FLAG_1 (NODE))
+
+/* When appearing in an INDIRECT_REF, it means that the tree structure
+ underneath is actually a call to a constructor. This is needed
+ when the constructor must initialize local storage (which can
+ be automatically destroyed), rather than allowing it to allocate
+ space from the heap.
+
+ When appearing in a SAVE_EXPR, it means that underneath
+ is a call to a constructor.
+
+ When appearing in a CONSTRUCTOR, the expression is a
+ compound literal.
+
+ When appearing in a FIELD_DECL, it means that this field
+ has been duly initialized in its constructor. */
+#define TREE_HAS_CONSTRUCTOR(NODE) (TREE_LANG_FLAG_4 (NODE))
+
+/* True if NODE is a brace-enclosed initializer. */
+#define BRACE_ENCLOSED_INITIALIZER_P(NODE) \
+ (TREE_CODE (NODE) == CONSTRUCTOR && TREE_TYPE (NODE) == init_list_type_node)
+
+/* True if NODE is a compound-literal, i.e., a brace-enclosed
+ initializer cast to a particular type. */
+#define COMPOUND_LITERAL_P(NODE) \
+ (TREE_CODE (NODE) == CONSTRUCTOR && TREE_HAS_CONSTRUCTOR (NODE))
+
+#define EMPTY_CONSTRUCTOR_P(NODE) (TREE_CODE (NODE) == CONSTRUCTOR \
+ && vec_safe_is_empty(CONSTRUCTOR_ELTS(NODE))\
+ && !TREE_HAS_CONSTRUCTOR (NODE))
+
+/* True if NODE is a init-list used as a direct-initializer, i.e.
+ B b{1,2}, not B b({1,2}) or B b = {1,2}. */
+#define CONSTRUCTOR_IS_DIRECT_INIT(NODE) (TREE_LANG_FLAG_0 (CONSTRUCTOR_CHECK (NODE)))
+
+/* True if NODE represents a conversion for direct-initialization in a
+ template. Set by perform_implicit_conversion_flags. */
+#define IMPLICIT_CONV_EXPR_DIRECT_INIT(NODE) \
+ (TREE_LANG_FLAG_0 (IMPLICIT_CONV_EXPR_CHECK (NODE)))
+
+/* Nonzero means that an object of this type can not be initialized using
+ an initializer list. */
+#define CLASSTYPE_NON_AGGREGATE(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->non_aggregate)
+#define TYPE_NON_AGGREGATE_CLASS(NODE) \
+ (CLASS_TYPE_P (NODE) && CLASSTYPE_NON_AGGREGATE (NODE))
+
+/* Nonzero if there is a non-trivial X::op=(cv X&) for this class. */
+#define TYPE_HAS_COMPLEX_COPY_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_copy_assign)
+
+/* Nonzero if there is a non-trivial X::X(cv X&) for this class. */
+#define TYPE_HAS_COMPLEX_COPY_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_copy_ctor)
+
+/* Nonzero if there is a non-trivial X::op=(X&&) for this class. */
+#define TYPE_HAS_COMPLEX_MOVE_ASSIGN(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_move_assign)
+
+/* Nonzero if there is a non-trivial X::X(X&&) for this class. */
+#define TYPE_HAS_COMPLEX_MOVE_CTOR(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_move_ctor)
+
+/* Nonzero if there is a non-trivial default constructor for this class. */
+#define TYPE_HAS_COMPLEX_DFLT(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->has_complex_dflt)
+
+/* Nonzero if TYPE has a trivial destructor. From [class.dtor]:
+
+ A destructor is trivial if it is an implicitly declared
+ destructor and if:
+
+ - all of the direct base classes of its class have trivial
+ destructors,
+
+ - for all of the non-static data members of its class that are
+ of class type (or array thereof), each such class has a
+ trivial destructor. */
+#define TYPE_HAS_TRIVIAL_DESTRUCTOR(NODE) \
+ (!TYPE_HAS_NONTRIVIAL_DESTRUCTOR (NODE))
+
+/* Nonzero for _TYPE node means that this type does not have a trivial
+ destructor. Therefore, destroying an object of this type will
+ involve a call to a destructor. This can apply to objects of
+ ARRAY_TYPE is the type of the elements needs a destructor. */
+#define TYPE_HAS_NONTRIVIAL_DESTRUCTOR(NODE) \
+ (TYPE_LANG_FLAG_4 (NODE))
+
+/* Nonzero for class type means that the default constructor is trivial. */
+#define TYPE_HAS_TRIVIAL_DFLT(NODE) \
+ (TYPE_HAS_DEFAULT_CONSTRUCTOR (NODE) && ! TYPE_HAS_COMPLEX_DFLT (NODE))
+
+/* Nonzero for class type means that copy initialization of this type can use
+ a bitwise copy. */
+#define TYPE_HAS_TRIVIAL_COPY_CTOR(NODE) \
+ (TYPE_HAS_COPY_CTOR (NODE) && ! TYPE_HAS_COMPLEX_COPY_CTOR (NODE))
+
+/* Nonzero for class type means that assignment of this type can use
+ a bitwise copy. */
+#define TYPE_HAS_TRIVIAL_COPY_ASSIGN(NODE) \
+ (TYPE_HAS_COPY_ASSIGN (NODE) && ! TYPE_HAS_COMPLEX_COPY_ASSIGN (NODE))
+
+/* Returns true if NODE is a pointer-to-data-member. */
+#define TYPE_PTRDATAMEM_P(NODE) \
+ (TREE_CODE (NODE) == OFFSET_TYPE)
+/* Returns true if NODE is a pointer. */
+#define TYPE_PTR_P(NODE) \
+ (TREE_CODE (NODE) == POINTER_TYPE)
+
+/* Returns true if NODE is an object type:
+
+ [basic.types]
+
+ An object type is a (possibly cv-qualified) type that is not a
+ function type, not a reference type, and not a void type.
+
+ Keep these checks in ascending order, for speed. */
+#define TYPE_OBJ_P(NODE) \
+ (TREE_CODE (NODE) != REFERENCE_TYPE \
+ && !VOID_TYPE_P (NODE) \
+ && TREE_CODE (NODE) != FUNCTION_TYPE \
+ && TREE_CODE (NODE) != METHOD_TYPE)
+
+/* Returns true if NODE is a pointer to an object. Keep these checks
+ in ascending tree code order. */
+#define TYPE_PTROB_P(NODE) \
+ (TYPE_PTR_P (NODE) && TYPE_OBJ_P (TREE_TYPE (NODE)))
+
+/* Returns true if NODE is a reference to an object. Keep these checks
+ in ascending tree code order. */
+#define TYPE_REF_OBJ_P(NODE) \
+ (TREE_CODE (NODE) == REFERENCE_TYPE && TYPE_OBJ_P (TREE_TYPE (NODE)))
+
+/* Returns true if NODE is a pointer to an object, or a pointer to
+ void. Keep these checks in ascending tree code order. */
+#define TYPE_PTROBV_P(NODE) \
+ (TYPE_PTR_P (NODE) \
+ && !(TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE \
+ || TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE))
+
+/* Returns true if NODE is a pointer to function. */
+#define TYPE_PTRFN_P(NODE) \
+ (TYPE_PTR_P (NODE) \
+ && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
+
+/* Returns true if NODE is a reference to function. */
+#define TYPE_REFFN_P(NODE) \
+ (TREE_CODE (NODE) == REFERENCE_TYPE \
+ && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
+
+/* Nonzero for _TYPE node means that this type is a pointer to member
+ function type. */
+#define TYPE_PTRMEMFUNC_P(NODE) \
+ (TREE_CODE (NODE) == RECORD_TYPE \
+ && TYPE_LANG_SPECIFIC (NODE) \
+ && TYPE_PTRMEMFUNC_FLAG (NODE))
+
+#define TYPE_PTRMEMFUNC_FLAG(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->ptrmemfunc_flag)
+
+/* Returns true if NODE is a pointer-to-member. */
+#define TYPE_PTRMEM_P(NODE) \
+ (TYPE_PTRDATAMEM_P (NODE) || TYPE_PTRMEMFUNC_P (NODE))
+
+/* Returns true if NODE is a pointer or a pointer-to-member. */
+#define TYPE_PTR_OR_PTRMEM_P(NODE) \
+ (TYPE_PTR_P (NODE) || TYPE_PTRMEM_P (NODE))
+
+/* Indicates when overload resolution may resolve to a pointer to
+ member function. [expr.unary.op]/3 */
+#define PTRMEM_OK_P(NODE) \
+ TREE_LANG_FLAG_0 (TREE_CHECK3 ((NODE), ADDR_EXPR, OFFSET_REF, SCOPE_REF))
+
+/* Get the POINTER_TYPE to the METHOD_TYPE associated with this
+ pointer to member function. TYPE_PTRMEMFUNC_P _must_ be true,
+ before using this macro. */
+#define TYPE_PTRMEMFUNC_FN_TYPE(NODE) \
+ (TREE_TYPE (TYPE_FIELDS (NODE)))
+
+/* Returns `A' for a type like `int (A::*)(double)' */
+#define TYPE_PTRMEMFUNC_OBJECT_TYPE(NODE) \
+ TYPE_METHOD_BASETYPE (TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
+
+/* These are use to manipulate the canonical RECORD_TYPE from the
+ hashed POINTER_TYPE, and can only be used on the POINTER_TYPE. */
+#define TYPE_GET_PTRMEMFUNC_TYPE(NODE) \
+ (TYPE_LANG_SPECIFIC (NODE) ? LANG_TYPE_PTRMEM_CHECK (NODE)->record : NULL)
+#define TYPE_SET_PTRMEMFUNC_TYPE(NODE, VALUE) \
+ do { \
+ if (TYPE_LANG_SPECIFIC (NODE) == NULL) \
+ { \
+ TYPE_LANG_SPECIFIC (NODE) = ggc_alloc_cleared_lang_type \
+ (sizeof (struct lang_type_ptrmem)); \
+ TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.h.is_lang_type_class = 0; \
+ } \
+ TYPE_LANG_SPECIFIC (NODE)->u.ptrmem.record = (VALUE); \
+ } while (0)
+
+/* For a pointer-to-member type of the form `T X::*', this is `X'.
+ For a type like `void (X::*)() const', this type is `X', not `const
+ X'. To get at the `const X' you have to look at the
+ TYPE_PTRMEM_POINTED_TO_TYPE; there, the first parameter will have
+ type `const X*'. */
+#define TYPE_PTRMEM_CLASS_TYPE(NODE) \
+ (TYPE_PTRDATAMEM_P (NODE) \
+ ? TYPE_OFFSET_BASETYPE (NODE) \
+ : TYPE_PTRMEMFUNC_OBJECT_TYPE (NODE))
+
+/* For a pointer-to-member type of the form `T X::*', this is `T'. */
+#define TYPE_PTRMEM_POINTED_TO_TYPE(NODE) \
+ (TYPE_PTRDATAMEM_P (NODE) \
+ ? TREE_TYPE (NODE) \
+ : TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
+
+/* For a pointer-to-member constant `X::Y' this is the RECORD_TYPE for
+ `X'. */
+#define PTRMEM_CST_CLASS(NODE) \
+ TYPE_PTRMEM_CLASS_TYPE (TREE_TYPE (PTRMEM_CST_CHECK (NODE)))
+
+/* For a pointer-to-member constant `X::Y' this is the _DECL for
+ `Y'. */
+#define PTRMEM_CST_MEMBER(NODE) (((ptrmem_cst_t)PTRMEM_CST_CHECK (NODE))->member)
+
+/* The expression in question for a TYPEOF_TYPE. */
+#define TYPEOF_TYPE_EXPR(NODE) (TYPE_VALUES_RAW (TYPEOF_TYPE_CHECK (NODE)))
+
+/* The type in question for an UNDERLYING_TYPE. */
+#define UNDERLYING_TYPE_TYPE(NODE) \
+ (TYPE_VALUES_RAW (UNDERLYING_TYPE_CHECK (NODE)))
+
+/* The type in question for BASES. */
+#define BASES_TYPE(NODE) \
+ (TYPE_VALUES_RAW (BASES_CHECK (NODE)))
+
+#define BASES_DIRECT(NODE) \
+ TREE_LANG_FLAG_0 (BASES_CHECK (NODE))
+
+/* The expression in question for a DECLTYPE_TYPE. */
+#define DECLTYPE_TYPE_EXPR(NODE) (TYPE_VALUES_RAW (DECLTYPE_TYPE_CHECK (NODE)))
+
+/* Whether the DECLTYPE_TYPE_EXPR of NODE was originally parsed as an
+ id-expression or a member-access expression. When false, it was
+ parsed as a full expression. */
+#define DECLTYPE_TYPE_ID_EXPR_OR_MEMBER_ACCESS_P(NODE) \
+ (DECLTYPE_TYPE_CHECK (NODE))->type_common.string_flag
+
+/* These flags indicate that we want different semantics from normal
+ decltype: lambda capture just drops references, init capture
+ uses auto semantics, lambda proxies look through implicit dereference. */
+#define DECLTYPE_FOR_LAMBDA_CAPTURE(NODE) \
+ TREE_LANG_FLAG_0 (DECLTYPE_TYPE_CHECK (NODE))
+#define DECLTYPE_FOR_INIT_CAPTURE(NODE) \
+ TREE_LANG_FLAG_1 (DECLTYPE_TYPE_CHECK (NODE))
+#define DECLTYPE_FOR_LAMBDA_PROXY(NODE) \
+ TREE_LANG_FLAG_2 (DECLTYPE_TYPE_CHECK (NODE))
+
+/* Nonzero for VAR_DECL and FUNCTION_DECL node means that `extern' was
+ specified in its declaration. This can also be set for an
+ erroneously declared PARM_DECL. */
+#define DECL_THIS_EXTERN(NODE) \
+ DECL_LANG_FLAG_2 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
+
+/* Nonzero for VAR_DECL and FUNCTION_DECL node means that `static' was
+ specified in its declaration. This can also be set for an
+ erroneously declared PARM_DECL. */
+#define DECL_THIS_STATIC(NODE) \
+ DECL_LANG_FLAG_6 (VAR_FUNCTION_OR_PARM_DECL_CHECK (NODE))
+
+/* Nonzero for FIELD_DECL node means that this field is a lambda capture
+ field for an array of runtime bound. */
+#define DECL_VLA_CAPTURE_P(NODE) \
+ DECL_LANG_FLAG_1 (FIELD_DECL_CHECK (NODE))
+
+/* Nonzero for FIELD_DECL node means that this field is a base class
+ of the parent object, as opposed to a member field. */
+#define DECL_FIELD_IS_BASE(NODE) \
+ DECL_LANG_FLAG_6 (FIELD_DECL_CHECK (NODE))
+
+/* Nonzero for FIELD_DECL node means that this field is a simple (no
+ explicit initializer) lambda capture field, making it invisible to
+ name lookup in unevaluated contexts. */
+#define DECL_NORMAL_CAPTURE_P(NODE) \
+ DECL_LANG_FLAG_7 (FIELD_DECL_CHECK (NODE))
+
+/* Nonzero if TYPE is an anonymous union or struct type. We have to use a
+ flag for this because "A union for which objects or pointers are
+ declared is not an anonymous union" [class.union]. */
+#define ANON_AGGR_TYPE_P(NODE) \
+ (CLASS_TYPE_P (NODE) && LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr)
+#define SET_ANON_AGGR_TYPE_P(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->anon_aggr = 1)
+
+/* Nonzero if TYPE is an anonymous union type. */
+#define ANON_UNION_TYPE_P(NODE) \
+ (TREE_CODE (NODE) == UNION_TYPE && ANON_AGGR_TYPE_P (NODE))
+
+/* Define fields and accessors for nodes representing declared names. */
+
+#define TYPE_WAS_ANONYMOUS(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->was_anonymous)
+
+/* C++: all of these are overloaded! These apply only to TYPE_DECLs. */
+
+/* The format of each node in the DECL_FRIENDLIST is as follows:
+
+ The TREE_PURPOSE will be the name of a function, i.e., an
+ IDENTIFIER_NODE. The TREE_VALUE will be itself a TREE_LIST, whose
+ TREE_VALUEs are friends with the given name. */
+#define DECL_FRIENDLIST(NODE) (DECL_INITIAL (NODE))
+#define FRIEND_NAME(LIST) (TREE_PURPOSE (LIST))
+#define FRIEND_DECLS(LIST) (TREE_VALUE (LIST))
+
+/* The DECL_ACCESS, if non-NULL, is a TREE_LIST. The TREE_PURPOSE of
+ each node is a type; the TREE_VALUE is the access granted for this
+ DECL in that type. The DECL_ACCESS is set by access declarations.
+ For example, if a member that would normally be public in a
+ derived class is made protected, then the derived class and the
+ protected_access_node will appear in the DECL_ACCESS for the node. */
+#define DECL_ACCESS(NODE) (LANG_DECL_U2_CHECK (NODE, 0)->access)
+
+/* Nonzero if the FUNCTION_DECL is a global constructor. */
+#define DECL_GLOBAL_CTOR_P(NODE) \
+ (LANG_DECL_FN_CHECK (NODE)->global_ctor_p)
+
+/* Nonzero if the FUNCTION_DECL is a global destructor. */
+#define DECL_GLOBAL_DTOR_P(NODE) \
+ (LANG_DECL_FN_CHECK (NODE)->global_dtor_p)
+
+/* Accessor macros for C++ template decl nodes. */
+
+/* The DECL_TEMPLATE_PARMS are a list. The TREE_PURPOSE of each node
+ is a INT_CST whose TREE_INT_CST_LOW indicates the level of the
+ template parameters, with 1 being the outermost set of template
+ parameters. The TREE_VALUE is a vector, whose elements are the
+ template parameters at each level. Each element in the vector is a
+ TREE_LIST, whose TREE_VALUE is a PARM_DECL (if the parameter is a
+ non-type parameter), or a TYPE_DECL (if the parameter is a type
+ parameter). The TREE_PURPOSE is the default value, if any. The
+ TEMPLATE_PARM_INDEX for the parameter is available as the
+ DECL_INITIAL (for a PARM_DECL) or as the TREE_TYPE (for a
+ TYPE_DECL). */
+#define DECL_TEMPLATE_PARMS(NODE) \
+ TEMPLATE_DECL_CHECK (NODE)->decl_non_common.arguments
+#define DECL_INNERMOST_TEMPLATE_PARMS(NODE) \
+ INNERMOST_TEMPLATE_PARMS (DECL_TEMPLATE_PARMS (NODE))
+#define DECL_NTPARMS(NODE) \
+ TREE_VEC_LENGTH (DECL_INNERMOST_TEMPLATE_PARMS (NODE))
+/* For function, method, class-data templates. */
+#define DECL_TEMPLATE_RESULT(NODE) \
+ DECL_RESULT_FLD (TEMPLATE_DECL_CHECK (NODE))
+/* For a function template at namespace scope, DECL_TEMPLATE_INSTANTIATIONS
+ lists all instantiations and specializations of the function so that
+ tsubst_friend_function can reassign them to another template if we find
+ that the namespace-scope template is really a partial instantiation of a
+ friend template.
+
+ For a class template the DECL_TEMPLATE_INSTANTIATIONS lists holds
+ all instantiations and specializations of the class type, including
+ partial instantiations and partial specializations, so that if we
+ explicitly specialize a partial instantiation we can walk the list
+ in maybe_process_partial_specialization and reassign them or complain
+ as appropriate.
+
+ In both cases, the TREE_PURPOSE of each node contains the arguments
+ used; the TREE_VALUE contains the generated variable. The template
+ arguments are always complete. For example, given:
+
+ template <class T> struct S1 {
+ template <class U> struct S2 {};
+ template <class U> struct S2<U*> {};
+ };
+
+ the record for the partial specialization will contain, as its
+ argument list, { {T}, {U*} }, and will be on the
+ DECL_TEMPLATE_INSTANTIATIONS list for `template <class T> template
+ <class U> struct S1<T>::S2'.
+
+ This list is not used for other templates. */
+#define DECL_TEMPLATE_INSTANTIATIONS(NODE) \
+ DECL_VINDEX (TEMPLATE_DECL_CHECK (NODE))
+
+/* For a class template, this list contains the partial
+ specializations of this template. (Full specializations are not
+ recorded on this list.) The TREE_PURPOSE holds the arguments used
+ in the partial specialization (e.g., for `template <class T> struct
+ S<T*, int>' this will be `T*, int'.) The arguments will also include
+ any outer template arguments. The TREE_VALUE holds the TEMPLATE_DECL
+ for the partial specialization. The TREE_TYPE is the _TYPE node for
+ the partial specialization.
+
+ This list is not used for other templates. */
+#define DECL_TEMPLATE_SPECIALIZATIONS(NODE) \
+ DECL_SIZE (TEMPLATE_DECL_CHECK (NODE))
+
+/* Nonzero for a DECL which is actually a template parameter. Keep
+ these checks in ascending tree code order. */
+#define DECL_TEMPLATE_PARM_P(NODE) \
+ (DECL_LANG_FLAG_0 (NODE) \
+ && (TREE_CODE (NODE) == CONST_DECL \
+ || TREE_CODE (NODE) == PARM_DECL \
+ || TREE_CODE (NODE) == TYPE_DECL \
+ || TREE_CODE (NODE) == TEMPLATE_DECL))
+
+/* Mark NODE as a template parameter. */
+#define SET_DECL_TEMPLATE_PARM_P(NODE) \
+ (DECL_LANG_FLAG_0 (NODE) = 1)
+
+/* Nonzero if NODE is a template template parameter. */
+#define DECL_TEMPLATE_TEMPLATE_PARM_P(NODE) \
+ (TREE_CODE (NODE) == TEMPLATE_DECL && DECL_TEMPLATE_PARM_P (NODE))
+
+/* Nonzero for a DECL that represents a function template. */
+#define DECL_FUNCTION_TEMPLATE_P(NODE) \
+ (TREE_CODE (NODE) == TEMPLATE_DECL \
+ && DECL_TEMPLATE_RESULT (NODE) != NULL_TREE \
+ && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == FUNCTION_DECL)
+
+/* Nonzero for a DECL that represents a class template or alias
+ template. */
+#define DECL_TYPE_TEMPLATE_P(NODE) \
+ (TREE_CODE (NODE) == TEMPLATE_DECL \
+ && DECL_TEMPLATE_RESULT (NODE) != NULL_TREE \
+ && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == TYPE_DECL)
+
+/* Nonzero for a DECL that represents a class template. */
+#define DECL_CLASS_TEMPLATE_P(NODE) \
+ (DECL_TYPE_TEMPLATE_P (NODE) \
+ && DECL_IMPLICIT_TYPEDEF_P (DECL_TEMPLATE_RESULT (NODE)))
+
+/* Nonzero for a TEMPLATE_DECL that represents an alias template. */
+#define DECL_ALIAS_TEMPLATE_P(NODE) \
+ (DECL_TYPE_TEMPLATE_P (NODE) \
+ && !DECL_ARTIFICIAL (DECL_TEMPLATE_RESULT (NODE)))
+
+/* Nonzero for a NODE which declares a type. */
+#define DECL_DECLARES_TYPE_P(NODE) \
+ (TREE_CODE (NODE) == TYPE_DECL || DECL_TYPE_TEMPLATE_P (NODE))
+
+/* Nonzero if NODE declares a function. */
+#define DECL_DECLARES_FUNCTION_P(NODE) \
+ (TREE_CODE (NODE) == FUNCTION_DECL || DECL_FUNCTION_TEMPLATE_P (NODE))
+
+/* Nonzero if NODE is the typedef implicitly generated for a type when
+ the type is declared. In C++, `struct S {};' is roughly
+ equivalent to `struct S {}; typedef struct S S;' in C.
+ DECL_IMPLICIT_TYPEDEF_P will hold for the typedef indicated in this
+ example. In C++, there is a second implicit typedef for each
+ class, in the scope of `S' itself, so that you can say `S::S'.
+ DECL_SELF_REFERENCE_P will hold for that second typedef. */
+#define DECL_IMPLICIT_TYPEDEF_P(NODE) \
+ (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_2 (NODE))
+#define SET_DECL_IMPLICIT_TYPEDEF_P(NODE) \
+ (DECL_LANG_FLAG_2 (NODE) = 1)
+#define DECL_SELF_REFERENCE_P(NODE) \
+ (TREE_CODE (NODE) == TYPE_DECL && DECL_LANG_FLAG_4 (NODE))
+#define SET_DECL_SELF_REFERENCE_P(NODE) \
+ (DECL_LANG_FLAG_4 (NODE) = 1)
+
+/* A `primary' template is one that has its own template header and is not
+ a partial specialization. A member function of a class template is a
+ template, but not primary. A member template is primary. Friend
+ templates are primary, too. */
+
+/* Returns the primary template corresponding to these parameters. */
+#define DECL_PRIMARY_TEMPLATE(NODE) \
+ (TREE_TYPE (DECL_INNERMOST_TEMPLATE_PARMS (NODE)))
+
+/* Returns nonzero if NODE is a primary template. */
+#define PRIMARY_TEMPLATE_P(NODE) (DECL_PRIMARY_TEMPLATE (NODE) == (NODE))
+
+/* Nonzero iff NODE is a specialization of a template. The value
+ indicates the type of specializations:
+
+ 1=implicit instantiation
+
+ 2=partial or explicit specialization, e.g.:
+
+ template <> int min<int> (int, int),
+
+ 3=explicit instantiation, e.g.:
+
+ template int min<int> (int, int);
+
+ Note that NODE will be marked as a specialization even if the
+ template it is instantiating is not a primary template. For
+ example, given:
+
+ template <typename T> struct O {
+ void f();
+ struct I {};
+ };
+
+ both O<int>::f and O<int>::I will be marked as instantiations.
+
+ If DECL_USE_TEMPLATE is nonzero, then DECL_TEMPLATE_INFO will also
+ be non-NULL. */
+#define DECL_USE_TEMPLATE(NODE) (DECL_LANG_SPECIFIC (NODE)->u.base.use_template)
+
+/* Like DECL_USE_TEMPLATE, but for class types. */
+#define CLASSTYPE_USE_TEMPLATE(NODE) \
+ (LANG_TYPE_CLASS_CHECK (NODE)->use_template)
+
+/* True if NODE is a specialization of a primary template. */
+#define CLASSTYPE_SPECIALIZATION_OF_PRIMARY_TEMPLATE_P(NODE) \
+ (CLASS_TYPE_P (NODE) \
+ && CLASSTYPE_USE_TEMPLATE (NODE) \
+ && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE)))
+
+#define DECL_TEMPLATE_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) & 1)
+#define CLASSTYPE_TEMPLATE_INSTANTIATION(NODE) \
+ (CLASSTYPE_USE_TEMPLATE (NODE) & 1)
+
+#define DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) == 2)
+#define SET_DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) = 2)
+
+/* Returns true for an explicit or partial specialization of a class
+ template. */
+#define CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
+ (CLASSTYPE_USE_TEMPLATE (NODE) == 2)
+#define SET_CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
+ (CLASSTYPE_USE_TEMPLATE (NODE) = 2)
+
+#define DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 1)
+#define SET_DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 1)
+#define CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
+ (CLASSTYPE_USE_TEMPLATE (NODE) == 1)
+#define SET_CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
+ (CLASSTYPE_USE_TEMPLATE (NODE) = 1)
+
+#define DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 3)
+#define SET_DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 3)
+#define CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
+ (CLASSTYPE_USE_TEMPLATE (NODE) == 3)
+#define SET_CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
+ (CLASSTYPE_USE_TEMPLATE (NODE) = 3)
+
+/* Nonzero if DECL is a friend function which is an instantiation
+ from the point of view of the compiler, but not from the point of
+ view of the language. For example given:
+ template <class T> struct S { friend void f(T) {}; };
+ the declaration of `void f(int)' generated when S<int> is
+ instantiated will not be a DECL_TEMPLATE_INSTANTIATION, but will be
+ a DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION. */
+#define DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION(DECL) \
+ (DECL_TEMPLATE_INFO (DECL) && !DECL_USE_TEMPLATE (DECL))
+
+/* Nonzero if DECL is a function generated from a function 'temploid',
+ i.e. template, member of class template, or dependent friend. */
+#define DECL_TEMPLOID_INSTANTIATION(DECL) \
+ (DECL_TEMPLATE_INSTANTIATION (DECL) \
+ || DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (DECL))
+
+/* Nonzero if DECL is either defined implicitly by the compiler or
+ generated from a temploid. */
+#define DECL_GENERATED_P(DECL) \
+ (DECL_TEMPLOID_INSTANTIATION (DECL) || DECL_DEFAULTED_FN (DECL))
+
+/* Nonzero iff we are currently processing a declaration for an
+ entity with its own template parameter list, and which is not a
+ full specialization. */
+#define PROCESSING_REAL_TEMPLATE_DECL_P() \
+ (processing_template_decl > template_class_depth (current_scope ()))
+
+/* Nonzero if this VAR_DECL or FUNCTION_DECL has already been
+ instantiated, i.e. its definition has been generated from the
+ pattern given in the template. */
+#define DECL_TEMPLATE_INSTANTIATED(NODE) \
+ DECL_LANG_FLAG_1 (VAR_OR_FUNCTION_DECL_CHECK (NODE))
+
+/* We know what we're doing with this decl now. */
+#define DECL_INTERFACE_KNOWN(NODE) DECL_LANG_FLAG_5 (NODE)
+
+/* DECL_EXTERNAL must be set on a decl until the decl is actually emitted,
+ so that assemble_external will work properly. So we have this flag to
+ tell us whether the decl is really not external.
+
+ This flag does not indicate whether or not the decl is defined in the
+ current translation unit; it indicates whether or not we should emit the
+ decl at the end of compilation if it is defined and needed. */
+#define DECL_NOT_REALLY_EXTERN(NODE) \
+ (DECL_LANG_SPECIFIC (NODE)->u.base.not_really_extern)
+
+#define DECL_REALLY_EXTERN(NODE) \
+ (DECL_EXTERNAL (NODE) && ! DECL_NOT_REALLY_EXTERN (NODE))
+
+/* A thunk is a stub function.
+
+ A thunk is an alternate entry point for an ordinary FUNCTION_DECL.
+ The address of the ordinary FUNCTION_DECL is given by the
+ DECL_INITIAL, which is always an ADDR_EXPR whose operand is a
+ FUNCTION_DECL. The job of the thunk is to either adjust the this
+ pointer before transferring control to the FUNCTION_DECL, or call
+ FUNCTION_DECL and then adjust the result value. Note, the result
+ pointer adjusting thunk must perform a call to the thunked
+ function, (or be implemented via passing some invisible parameter
+ to the thunked function, which is modified to perform the
+ adjustment just before returning).
+
+ A thunk may perform either, or both, of the following operations:
+
+ o Adjust the this or result pointer by a constant offset.
+ o Adjust the this or result pointer by looking up a vcall or vbase offset
+ in the vtable.
+
+ A this pointer adjusting thunk converts from a base to a derived
+ class, and hence adds the offsets. A result pointer adjusting thunk
+ converts from a derived class to a base, and hence subtracts the
+ offsets. If both operations are performed, then the constant
+ adjustment is performed first for this pointer adjustment and last
+ for the result pointer adjustment.
+
+ The constant adjustment is given by THUNK_FIXED_OFFSET. If the
+ vcall or vbase offset is required, THUNK_VIRTUAL_OFFSET is
+ used. For this pointer adjusting thunks, it is the vcall offset
+ into the vtable. For result pointer adjusting thunks it is the
+ binfo of the virtual base to convert to. Use that binfo's vbase
+ offset.
+
+ It is possible to have equivalent covariant thunks. These are
+ distinct virtual covariant thunks whose vbase offsets happen to
+ have the same value. THUNK_ALIAS is used to pick one as the
+ canonical thunk, which will get all the this pointer adjusting
+ thunks attached to it. */
+
+/* An integer indicating how many bytes should be subtracted from the
+ this or result pointer when this function is called. */
+#define THUNK_FIXED_OFFSET(DECL) \
+ (DECL_LANG_SPECIFIC (THUNK_FUNCTION_CHECK (DECL))->u.fn.u5.fixed_offset)
+
+/* A tree indicating how to perform the virtual adjustment. For a this
+ adjusting thunk it is the number of bytes to be added to the vtable
+ to find the vcall offset. For a result adjusting thunk, it is the
+ binfo of the relevant virtual base. If NULL, then there is no
+ virtual adjust. (The vptr is always located at offset zero from
+ the this or result pointer.) (If the covariant type is within the
+ class hierarchy being laid out, the vbase index is not yet known
+ at the point we need to create the thunks, hence the need to use
+ binfos.) */
+
+#define THUNK_VIRTUAL_OFFSET(DECL) \
+ (LANG_DECL_U2_CHECK (FUNCTION_DECL_CHECK (DECL), 0)->access)
+
+/* A thunk which is equivalent to another thunk. */
+#define THUNK_ALIAS(DECL) \
+ (DECL_LANG_SPECIFIC (FUNCTION_DECL_CHECK (DECL))->u.min.template_info)
+
+/* For thunk NODE, this is the FUNCTION_DECL thunked to. It is
+ possible for the target to be a thunk too. */
+#define THUNK_TARGET(NODE) \
+ (LANG_DECL_FN_CHECK (NODE)->befriending_classes)
+
+/* True for a SCOPE_REF iff the "template" keyword was used to
+ indicate that the qualified name denotes a template. */
+#define QUALIFIED_NAME_IS_TEMPLATE(NODE) \
+ (TREE_LANG_FLAG_1 (SCOPE_REF_CHECK (NODE)))
+
+/* True for an OMP_ATOMIC that has dependent parameters. These are stored
+ as an expr in operand 1, and integer_zero_node in operand 0. */
+#define OMP_ATOMIC_DEPENDENT_P(NODE) \
+ (TREE_CODE (TREE_OPERAND (OMP_ATOMIC_CHECK (NODE), 0)) == INTEGER_CST)
+
+/* Used while gimplifying continue statements bound to OMP_FOR nodes. */
+#define OMP_FOR_GIMPLIFYING_P(NODE) \
+ (TREE_LANG_FLAG_0 (OMP_LOOP_CHECK (NODE)))
+
+/* A language-specific token attached to the OpenMP data clauses to
+ hold code (or code fragments) related to ctors, dtors, and op=.
+ See semantics.c for details. */
+#define CP_OMP_CLAUSE_INFO(NODE) \
+ TREE_TYPE (OMP_CLAUSE_RANGE_CHECK (NODE, OMP_CLAUSE_PRIVATE, \
+ OMP_CLAUSE_LINEAR))
+
+/* Nonzero if this transaction expression's body contains statements. */
+#define TRANSACTION_EXPR_IS_STMT(NODE) \
+ TREE_LANG_FLAG_0 (TRANSACTION_EXPR_CHECK (NODE))
+
+/* These macros provide convenient access to the various _STMT nodes
+ created when parsing template declarations. */
+#define TRY_STMTS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 0)
+#define TRY_HANDLERS(NODE) TREE_OPERAND (TRY_BLOCK_CHECK (NODE), 1)
+
+#define EH_SPEC_STMTS(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 0)
+#define EH_SPEC_RAISES(NODE) TREE_OPERAND (EH_SPEC_BLOCK_CHECK (NODE), 1)
+
+#define USING_STMT_NAMESPACE(NODE) TREE_OPERAND (USING_STMT_CHECK (NODE), 0)
+
+/* Nonzero if this try block is a function try block. */
+#define FN_TRY_BLOCK_P(NODE) TREE_LANG_FLAG_3 (TRY_BLOCK_CHECK (NODE))
+#define HANDLER_PARMS(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 0)
+#define HANDLER_BODY(NODE) TREE_OPERAND (HANDLER_CHECK (NODE), 1)
+#define HANDLER_TYPE(NODE) TREE_TYPE (HANDLER_CHECK (NODE))
+
+/* CLEANUP_STMT accessors. The statement(s) covered, the cleanup to run
+ and the VAR_DECL for which this cleanup exists. */
+#define CLEANUP_BODY(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 0)
+#define CLEANUP_EXPR(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 1)
+#define CLEANUP_DECL(NODE) TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 2)
+
+/* IF_STMT accessors. These give access to the condition of the if
+ statement, the then block of the if statement, and the else block
+ of the if statement if it exists. */
+#define IF_COND(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 0)
+#define THEN_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 1)
+#define ELSE_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 2)
+#define IF_SCOPE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 3)
+
+/* WHILE_STMT accessors. These give access to the condition of the
+ while statement and the body of the while statement, respectively. */
+#define WHILE_COND(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 0)
+#define WHILE_BODY(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 1)
+
+/* DO_STMT accessors. These give access to the condition of the do
+ statement and the body of the do statement, respectively. */
+#define DO_COND(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 0)
+#define DO_BODY(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 1)
+
+/* FOR_STMT accessors. These give access to the init statement,
+ condition, update expression, and body of the for statement,
+ respectively. */
+#define FOR_INIT_STMT(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 0)
+#define FOR_COND(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 1)
+#define FOR_EXPR(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 2)
+#define FOR_BODY(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 3)
+#define FOR_SCOPE(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 4)
+
+/* RANGE_FOR_STMT accessors. These give access to the declarator,
+ expression, body, and scope of the statement, respectively. */
+#define RANGE_FOR_DECL(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 0)
+#define RANGE_FOR_EXPR(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 1)
+#define RANGE_FOR_BODY(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 2)
+#define RANGE_FOR_SCOPE(NODE) TREE_OPERAND (RANGE_FOR_STMT_CHECK (NODE), 3)
+#define RANGE_FOR_IVDEP(NODE) TREE_LANG_FLAG_6 (RANGE_FOR_STMT_CHECK (NODE))
+
+#define SWITCH_STMT_COND(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 0)
+#define SWITCH_STMT_BODY(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 1)
+#define SWITCH_STMT_TYPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 2)
+#define SWITCH_STMT_SCOPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 3)
+
+/* STMT_EXPR accessor. */
+#define STMT_EXPR_STMT(NODE) TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0)
+
+/* EXPR_STMT accessor. This gives the expression associated with an
+ expression statement. */
+#define EXPR_STMT_EXPR(NODE) TREE_OPERAND (EXPR_STMT_CHECK (NODE), 0)
+
+/* True if this TARGET_EXPR was created by build_cplus_new, and so we can
+ discard it if it isn't useful. */
+#define TARGET_EXPR_IMPLICIT_P(NODE) \
+ TREE_LANG_FLAG_0 (TARGET_EXPR_CHECK (NODE))
+
+/* True if this TARGET_EXPR is the result of list-initialization of a
+ temporary. */
+#define TARGET_EXPR_LIST_INIT_P(NODE) \
+ TREE_LANG_FLAG_1 (TARGET_EXPR_CHECK (NODE))
+
+/* True if this TARGET_EXPR expresses direct-initialization of an object
+ to be named later. */
+#define TARGET_EXPR_DIRECT_INIT_P(NODE) \
+ TREE_LANG_FLAG_2 (TARGET_EXPR_CHECK (NODE))
+
+/* True if EXPR expresses direct-initialization of a TYPE. */
+#define DIRECT_INIT_EXPR_P(TYPE,EXPR) \
+ (TREE_CODE (EXPR) == TARGET_EXPR && TREE_LANG_FLAG_2 (EXPR) \
+ && same_type_ignoring_top_level_qualifiers_p (TYPE, TREE_TYPE (EXPR)))
+
+/* True if this CONVERT_EXPR is for a conversion to virtual base in
+ an NSDMI, and should be re-evaluated when used in a constructor. */
+#define CONVERT_EXPR_VBASE_PATH(NODE) \
+ TREE_LANG_FLAG_0 (CONVERT_EXPR_CHECK (NODE))
+
+/* True if SIZEOF_EXPR argument is type. */
+#define SIZEOF_EXPR_TYPE_P(NODE) \
+ TREE_LANG_FLAG_0 (SIZEOF_EXPR_CHECK (NODE))
+
+/* An enumeration of the kind of tags that C++ accepts. */
+enum tag_types {
+ none_type = 0, /* Not a tag type. */
+ record_type, /* "struct" types. */
+ class_type, /* "class" types. */
+ union_type, /* "union" types. */
+ enum_type, /* "enum" types. */
+ typename_type /* "typename" types. */
+};
+
+/* The various kinds of lvalues we distinguish. */
+enum cp_lvalue_kind_flags {
+ clk_none = 0, /* Things that are not an lvalue. */
+ clk_ordinary = 1, /* An ordinary lvalue. */
+ clk_rvalueref = 2,/* An xvalue (rvalue formed using an rvalue reference) */
+ clk_class = 4, /* A prvalue of class-type. */
+ clk_bitfield = 8, /* An lvalue for a bit-field. */
+ clk_packed = 16 /* An lvalue for a packed field. */
+};
+
+/* This type is used for parameters and variables which hold
+ combinations of the flags in enum cp_lvalue_kind_flags. */
+typedef int cp_lvalue_kind;
+
+/* Various kinds of template specialization, instantiation, etc. */
+typedef enum tmpl_spec_kind {
+ tsk_none, /* Not a template at all. */
+ tsk_invalid_member_spec, /* An explicit member template
+ specialization, but the enclosing
+ classes have not all been explicitly
+ specialized. */
+ tsk_invalid_expl_inst, /* An explicit instantiation containing
+ template parameter lists. */
+ tsk_excessive_parms, /* A template declaration with too many
+ template parameter lists. */
+ tsk_insufficient_parms, /* A template declaration with too few
+ parameter lists. */
+ tsk_template, /* A template declaration. */
+ tsk_expl_spec, /* An explicit specialization. */
+ tsk_expl_inst /* An explicit instantiation. */
+} tmpl_spec_kind;
+
+/* The various kinds of access. BINFO_ACCESS depends on these being
+ two bit quantities. The numerical values are important; they are
+ used to initialize RTTI data structures, so changing them changes
+ the ABI. */
+typedef enum access_kind {
+ ak_none = 0, /* Inaccessible. */
+ ak_public = 1, /* Accessible, as a `public' thing. */
+ ak_protected = 2, /* Accessible, as a `protected' thing. */
+ ak_private = 3 /* Accessible, as a `private' thing. */
+} access_kind;
+
+/* The various kinds of special functions. If you add to this list,
+ you should update special_function_p as well. */
+typedef enum special_function_kind {
+ sfk_none = 0, /* Not a special function. This enumeral
+ must have value zero; see
+ special_function_p. */
+ sfk_constructor, /* A constructor. */
+ sfk_copy_constructor, /* A copy constructor. */
+ sfk_move_constructor, /* A move constructor. */
+ sfk_copy_assignment, /* A copy assignment operator. */
+ sfk_move_assignment, /* A move assignment operator. */
+ sfk_destructor, /* A destructor. */
+ sfk_complete_destructor, /* A destructor for complete objects. */
+ sfk_base_destructor, /* A destructor for base subobjects. */
+ sfk_deleting_destructor, /* A destructor for complete objects that
+ deletes the object after it has been
+ destroyed. */
+ sfk_conversion, /* A conversion operator. */
+ sfk_inheriting_constructor /* An inheriting constructor */
+} special_function_kind;
+
+/* The various kinds of linkage. From [basic.link],
+
+ A name is said to have linkage when it might denote the same
+ object, reference, function, type, template, namespace or value
+ as a name introduced in another scope:
+
+ -- When a name has external linkage, the entity it denotes can
+ be referred to from scopes of other translation units or from
+ other scopes of the same translation unit.
+
+ -- When a name has internal linkage, the entity it denotes can
+ be referred to by names from other scopes in the same
+ translation unit.
+
+ -- When a name has no linkage, the entity it denotes cannot be
+ referred to by names from other scopes. */
+
+typedef enum linkage_kind {
+ lk_none, /* No linkage. */
+ lk_internal, /* Internal linkage. */
+ lk_external /* External linkage. */
+} linkage_kind;
+
+typedef enum duration_kind {
+ dk_static,
+ dk_thread,
+ dk_auto,
+ dk_dynamic
+} duration_kind;
+
+/* Bitmask flags to control type substitution. */
+enum tsubst_flags {
+ tf_none = 0, /* nothing special */
+ tf_error = 1 << 0, /* give error messages */
+ tf_warning = 1 << 1, /* give warnings too */
+ tf_ignore_bad_quals = 1 << 2, /* ignore bad cvr qualifiers */
+ tf_keep_type_decl = 1 << 3, /* retain typedef type decls
+ (make_typename_type use) */
+ tf_ptrmem_ok = 1 << 4, /* pointers to member ok (internal
+ instantiate_type use) */
+ tf_user = 1 << 5, /* found template must be a user template
+ (lookup_template_class use) */
+ tf_conv = 1 << 6, /* We are determining what kind of
+ conversion might be permissible,
+ not actually performing the
+ conversion. */
+ tf_decltype = 1 << 7, /* We are the operand of decltype.
+ Used to implement the special rules
+ for calls in decltype (5.2.2/11). */
+ tf_partial = 1 << 8, /* Doing initial explicit argument
+ substitution in fn_type_unification. */
+ /* Convenient substitution flags combinations. */
+ tf_warning_or_error = tf_warning | tf_error
+};
+
+/* This type is used for parameters and variables which hold
+ combinations of the flags in enum tsubst_flags. */
+typedef int tsubst_flags_t;
+
+/* The kind of checking we can do looking in a class hierarchy. */
+enum base_access_flags {
+ ba_any = 0, /* Do not check access, allow an ambiguous base,
+ prefer a non-virtual base */
+ ba_unique = 1 << 0, /* Must be a unique base. */
+ ba_check_bit = 1 << 1, /* Check access. */
+ ba_check = ba_unique | ba_check_bit,
+ ba_ignore_scope = 1 << 2 /* Ignore access allowed by local scope. */
+};
+
+/* This type is used for parameters and variables which hold
+ combinations of the flags in enum base_access_flags. */
+typedef int base_access;
+
+/* The various kinds of access check during parsing. */
+typedef enum deferring_kind {
+ dk_no_deferred = 0, /* Check access immediately */
+ dk_deferred = 1, /* Deferred check */
+ dk_no_check = 2 /* No access check */
+} deferring_kind;
+
+/* The kind of base we can find, looking in a class hierarchy.
+ Values <0 indicate we failed. */
+typedef enum base_kind {
+ bk_inaccessible = -3, /* The base is inaccessible */
+ bk_ambig = -2, /* The base is ambiguous */
+ bk_not_base = -1, /* It is not a base */
+ bk_same_type = 0, /* It is the same type */
+ bk_proper_base = 1, /* It is a proper base */
+ bk_via_virtual = 2 /* It is a proper base, but via a virtual
+ path. This might not be the canonical
+ binfo. */
+} base_kind;
+
+/* Node for "pointer to (virtual) function".
+ This may be distinct from ptr_type_node so gdb can distinguish them. */
+#define vfunc_ptr_type_node vtable_entry_type
+
+
+/* For building calls to `delete'. */
+extern GTY(()) tree integer_two_node;
+
+/* The number of function bodies which we are currently processing.
+ (Zero if we are at namespace scope, one inside the body of a
+ function, two inside the body of a function in a local class, etc.) */
+extern int function_depth;
+
+/* Nonzero if we are inside eq_specializations, which affects comparison of
+ PARM_DECLs in cp_tree_equal. */
+extern int comparing_specializations;
+
+/* In parser.c. */
+
+/* Nonzero if we are parsing an unevaluated operand: an operand to
+ sizeof, typeof, or alignof. This is a count since operands to
+ sizeof can be nested. */
+
+extern int cp_unevaluated_operand;
+extern tree cp_convert_range_for (tree, tree, tree, bool);
+extern bool parsing_nsdmi (void);
+
+/* in pt.c */
+
+/* These values are used for the `STRICT' parameter to type_unification and
+ fn_type_unification. Their meanings are described with the
+ documentation for fn_type_unification. */
+
+typedef enum unification_kind_t {
+ DEDUCE_CALL,
+ DEDUCE_CONV,
+ DEDUCE_EXACT
+} unification_kind_t;
+
+/* in class.c */
+
+extern int current_class_depth;
+
+/* An array of all local classes present in this translation unit, in
+ declaration order. */
+extern GTY(()) vec<tree, va_gc> *local_classes;
+
+/* Here's where we control how name mangling takes place. */
+
+/* Cannot use '$' up front, because this confuses gdb
+ (names beginning with '$' are gdb-local identifiers).
+
+ Note that all forms in which the '$' is significant are long enough
+ for direct indexing (meaning that if we know there is a '$'
+ at a particular location, we can index into the string at
+ any other location that provides distinguishing characters). */
+
+/* Define NO_DOT_IN_LABEL in your favorite tm file if your assembler
+ doesn't allow '.' in symbol names. */
+#ifndef NO_DOT_IN_LABEL
+
+#define JOINER '.'
+
+#define AUTO_TEMP_NAME "_.tmp_"
+#define VFIELD_BASE ".vf"
+#define VFIELD_NAME "_vptr."
+#define VFIELD_NAME_FORMAT "_vptr.%s"
+
+#else /* NO_DOT_IN_LABEL */
+
+#ifndef NO_DOLLAR_IN_LABEL
+
+#define JOINER '$'
+
+#define AUTO_TEMP_NAME "_$tmp_"
+#define VFIELD_BASE "$vf"
+#define VFIELD_NAME "_vptr$"
+#define VFIELD_NAME_FORMAT "_vptr$%s"
+
+#else /* NO_DOLLAR_IN_LABEL */
+
+#define AUTO_TEMP_NAME "__tmp_"
+#define TEMP_NAME_P(ID_NODE) \
+ (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, \
+ sizeof (AUTO_TEMP_NAME) - 1))
+#define VTABLE_NAME "__vt_"
+#define VTABLE_NAME_P(ID_NODE) \
+ (!strncmp (IDENTIFIER_POINTER (ID_NODE), VTABLE_NAME, \
+ sizeof (VTABLE_NAME) - 1))
+#define VFIELD_BASE "__vfb"
+#define VFIELD_NAME "__vptr_"
+#define VFIELD_NAME_P(ID_NODE) \
+ (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, \
+ sizeof (VFIELD_NAME) - 1))
+#define VFIELD_NAME_FORMAT "__vptr_%s"
+
+#endif /* NO_DOLLAR_IN_LABEL */
+#endif /* NO_DOT_IN_LABEL */
+
+#define THIS_NAME "this"
+
+#define IN_CHARGE_NAME "__in_chrg"
+
+#define VTBL_PTR_TYPE "__vtbl_ptr_type"
+#define VTABLE_DELTA_NAME "__delta"
+#define VTABLE_PFN_NAME "__pfn"
+
+#define LAMBDANAME_PREFIX "__lambda"
+#define LAMBDANAME_FORMAT LAMBDANAME_PREFIX "%d"
+
+#define UDLIT_OP_ANSI_PREFIX "operator\"\""
+#define UDLIT_OP_ANSI_FORMAT UDLIT_OP_ANSI_PREFIX "%s"
+#define UDLIT_OP_MANGLED_PREFIX "li"
+#define UDLIT_OP_MANGLED_FORMAT UDLIT_OP_MANGLED_PREFIX "%s"
+#define UDLIT_OPER_P(ID_NODE) \
+ (!strncmp (IDENTIFIER_POINTER (ID_NODE), \
+ UDLIT_OP_ANSI_PREFIX, \
+ sizeof (UDLIT_OP_ANSI_PREFIX) - 1))
+#define UDLIT_OP_SUFFIX(ID_NODE) \
+ (IDENTIFIER_POINTER (ID_NODE) + sizeof (UDLIT_OP_ANSI_PREFIX) - 1)
+
+#if !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL)
+
+#define VTABLE_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == 'v' \
+ && IDENTIFIER_POINTER (ID_NODE)[2] == 't' \
+ && IDENTIFIER_POINTER (ID_NODE)[3] == JOINER)
+
+#define TEMP_NAME_P(ID_NODE) \
+ (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, sizeof (AUTO_TEMP_NAME)-1))
+#define VFIELD_NAME_P(ID_NODE) \
+ (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, sizeof(VFIELD_NAME)-1))
+
+#endif /* !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) */
+
+
+/* Nonzero if we're done parsing and into end-of-file activities. */
+
+extern int at_eof;
+
+/* A list of namespace-scope objects which have constructors or
+ destructors which reside in the global scope. The decl is stored
+ in the TREE_VALUE slot and the initializer is stored in the
+ TREE_PURPOSE slot. */
+extern GTY(()) tree static_aggregates;
+/* Likewise, for thread local storage. */
+extern GTY(()) tree tls_aggregates;
+
+enum overload_flags { NO_SPECIAL = 0, DTOR_FLAG, TYPENAME_FLAG };
+
+/* These are uses as bits in flags passed to various functions to
+ control their behavior. Despite the LOOKUP_ prefix, many of these
+ do not control name lookup. ??? Functions using these flags should
+ probably be modified to accept explicit boolean flags for the
+ behaviors relevant to them. */
+/* Check for access violations. */
+#define LOOKUP_PROTECT (1 << 0)
+#define LOOKUP_NORMAL (LOOKUP_PROTECT)
+/* Even if the function found by lookup is a virtual function, it
+ should be called directly. */
+#define LOOKUP_NONVIRTUAL (1 << 1)
+/* Non-converting (i.e., "explicit") constructors are not tried. This flag
+ indicates that we are not performing direct-initialization. */
+#define LOOKUP_ONLYCONVERTING (1 << 2)
+#define LOOKUP_IMPLICIT (LOOKUP_NORMAL | LOOKUP_ONLYCONVERTING)
+/* If a temporary is created, it should be created so that it lives
+ as long as the current variable bindings; otherwise it only lives
+ until the end of the complete-expression. It also forces
+ direct-initialization in cases where other parts of the compiler
+ have already generated a temporary, such as reference
+ initialization and the catch parameter. */
+#define DIRECT_BIND (1 << 3)
+/* We're performing a user-defined conversion, so more user-defined
+ conversions are not permitted (only built-in conversions). */
+#define LOOKUP_NO_CONVERSION (1 << 4)
+/* The user has explicitly called a destructor. (Therefore, we do
+ not need to check that the object is non-NULL before calling the
+ destructor.) */
+#define LOOKUP_DESTRUCTOR (1 << 5)
+/* Do not permit references to bind to temporaries. */
+#define LOOKUP_NO_TEMP_BIND (1 << 6)
+/* Do not accept objects, and possibly namespaces. */
+#define LOOKUP_PREFER_TYPES (1 << 7)
+/* Do not accept objects, and possibly types. */
+#define LOOKUP_PREFER_NAMESPACES (1 << 8)
+/* Accept types or namespaces. */
+#define LOOKUP_PREFER_BOTH (LOOKUP_PREFER_TYPES | LOOKUP_PREFER_NAMESPACES)
+/* Return friend declarations and un-declared builtin functions.
+ (Normally, these entities are registered in the symbol table, but
+ not found by lookup.) */
+#define LOOKUP_HIDDEN (LOOKUP_PREFER_NAMESPACES << 1)
+/* Prefer that the lvalue be treated as an rvalue. */
+#define LOOKUP_PREFER_RVALUE (LOOKUP_HIDDEN << 1)
+/* We're inside an init-list, so narrowing conversions are ill-formed. */
+#define LOOKUP_NO_NARROWING (LOOKUP_PREFER_RVALUE << 1)
+/* We're looking up a constructor for list-initialization. */
+#define LOOKUP_LIST_INIT_CTOR (LOOKUP_NO_NARROWING << 1)
+/* This is the first parameter of a copy constructor. */
+#define LOOKUP_COPY_PARM (LOOKUP_LIST_INIT_CTOR << 1)
+/* We only want to consider list constructors. */
+#define LOOKUP_LIST_ONLY (LOOKUP_COPY_PARM << 1)
+/* Return after determining which function to call and checking access.
+ Used by sythesized_method_walk to determine which functions will
+ be called to initialize subobjects, in order to determine exception
+ specification and possible implicit delete.
+ This is kind of a hack, but exiting early avoids problems with trying
+ to perform argument conversions when the class isn't complete yet. */
+#define LOOKUP_SPECULATIVE (LOOKUP_LIST_ONLY << 1)
+/* Used by calls from defaulted functions to limit the overload set to avoid
+ cycles trying to declare them (core issue 1092). */
+#define LOOKUP_DEFAULTED (LOOKUP_SPECULATIVE << 1)
+/* Used in calls to store_init_value to suppress its usual call to
+ digest_init. */
+#define LOOKUP_ALREADY_DIGESTED (LOOKUP_DEFAULTED << 1)
+/* An instantiation with explicit template arguments. */
+#define LOOKUP_EXPLICIT_TMPL_ARGS (LOOKUP_ALREADY_DIGESTED << 1)
+/* Like LOOKUP_NO_TEMP_BIND, but also prevent binding to xvalues. */
+#define LOOKUP_NO_RVAL_BIND (LOOKUP_EXPLICIT_TMPL_ARGS << 1)
+/* Used by case_conversion to disregard non-integral conversions. */
+#define LOOKUP_NO_NON_INTEGRAL (LOOKUP_NO_RVAL_BIND << 1)
+/* Used for delegating constructors in order to diagnose self-delegation. */
+#define LOOKUP_DELEGATING_CONS (LOOKUP_NO_NON_INTEGRAL << 1)
+
+#define LOOKUP_NAMESPACES_ONLY(F) \
+ (((F) & LOOKUP_PREFER_NAMESPACES) && !((F) & LOOKUP_PREFER_TYPES))
+#define LOOKUP_TYPES_ONLY(F) \
+ (!((F) & LOOKUP_PREFER_NAMESPACES) && ((F) & LOOKUP_PREFER_TYPES))
+#define LOOKUP_QUALIFIERS_ONLY(F) ((F) & LOOKUP_PREFER_BOTH)
+
+
+/* These flags are used by the conversion code.
+ CONV_IMPLICIT : Perform implicit conversions (standard and user-defined).
+ CONV_STATIC : Perform the explicit conversions for static_cast.
+ CONV_CONST : Perform the explicit conversions for const_cast.
+ CONV_REINTERPRET: Perform the explicit conversions for reinterpret_cast.
+ CONV_PRIVATE : Perform upcasts to private bases.
+ CONV_FORCE_TEMP : Require a new temporary when converting to the same
+ aggregate type. */
+
+#define CONV_IMPLICIT 1
+#define CONV_STATIC 2
+#define CONV_CONST 4
+#define CONV_REINTERPRET 8
+#define CONV_PRIVATE 16
+/* #define CONV_NONCONVERTING 32 */
+#define CONV_FORCE_TEMP 64
+#define CONV_OLD_CONVERT (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
+ | CONV_REINTERPRET)
+#define CONV_C_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
+ | CONV_REINTERPRET | CONV_PRIVATE | CONV_FORCE_TEMP)
+
+/* Used by build_expr_type_conversion to indicate which types are
+ acceptable as arguments to the expression under consideration. */
+
+#define WANT_INT 1 /* integer types, including bool */
+#define WANT_FLOAT 2 /* floating point types */
+#define WANT_ENUM 4 /* enumerated types */
+#define WANT_POINTER 8 /* pointer types */
+#define WANT_NULL 16 /* null pointer constant */
+#define WANT_VECTOR_OR_COMPLEX 32 /* vector or complex types */
+#define WANT_ARITH (WANT_INT | WANT_FLOAT | WANT_VECTOR_OR_COMPLEX)
+
+/* Used with comptypes, and related functions, to guide type
+ comparison. */
+
+#define COMPARE_STRICT 0 /* Just check if the types are the
+ same. */
+#define COMPARE_BASE 1 /* Check to see if the second type is
+ derived from the first. */
+#define COMPARE_DERIVED 2 /* Like COMPARE_BASE, but in
+ reverse. */
+#define COMPARE_REDECLARATION 4 /* The comparison is being done when
+ another declaration of an existing
+ entity is seen. */
+#define COMPARE_STRUCTURAL 8 /* The comparison is intended to be
+ structural. The actual comparison
+ will be identical to
+ COMPARE_STRICT. */
+
+/* Used with push_overloaded_decl. */
+#define PUSH_GLOBAL 0 /* Push the DECL into namespace scope,
+ regardless of the current scope. */
+#define PUSH_LOCAL 1 /* Push the DECL into the current
+ scope. */
+#define PUSH_USING 2 /* We are pushing this DECL as the
+ result of a using declaration. */
+
+/* Used with start function. */
+#define SF_DEFAULT 0 /* No flags. */
+#define SF_PRE_PARSED 1 /* The function declaration has
+ already been parsed. */
+#define SF_INCLASS_INLINE 2 /* The function is an inline, defined
+ in the class body. */
+
+/* Used with start_decl's initialized parameter. */
+#define SD_UNINITIALIZED 0
+#define SD_INITIALIZED 1
+#define SD_DEFAULTED 2
+#define SD_DELETED 3
+
+/* Returns nonzero iff TYPE1 and TYPE2 are the same type, or if TYPE2
+ is derived from TYPE1, or if TYPE2 is a pointer (reference) to a
+ class derived from the type pointed to (referred to) by TYPE1. */
+#define same_or_base_type_p(TYPE1, TYPE2) \
+ comptypes ((TYPE1), (TYPE2), COMPARE_BASE)
+
+/* These macros are used to access a TEMPLATE_PARM_INDEX. */
+#define TEMPLATE_PARM_INDEX_CAST(NODE) \
+ ((template_parm_index*)TEMPLATE_PARM_INDEX_CHECK (NODE))
+#define TEMPLATE_PARM_IDX(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->index)
+#define TEMPLATE_PARM_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->level)
+#define TEMPLATE_PARM_DESCENDANTS(NODE) (TREE_CHAIN (NODE))
+#define TEMPLATE_PARM_ORIG_LEVEL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->orig_level)
+#define TEMPLATE_PARM_DECL(NODE) (TEMPLATE_PARM_INDEX_CAST (NODE)->decl)
+#define TEMPLATE_PARM_PARAMETER_PACK(NODE) \
+ (TREE_LANG_FLAG_0 (TEMPLATE_PARM_INDEX_CHECK (NODE)))
+
+/* These macros are for accessing the fields of TEMPLATE_TYPE_PARM,
+ TEMPLATE_TEMPLATE_PARM and BOUND_TEMPLATE_TEMPLATE_PARM nodes. */
+#define TEMPLATE_TYPE_PARM_INDEX(NODE) \
+ (TYPE_VALUES_RAW (TREE_CHECK3 ((NODE), TEMPLATE_TYPE_PARM, \
+ TEMPLATE_TEMPLATE_PARM, \
+ BOUND_TEMPLATE_TEMPLATE_PARM)))
+#define TEMPLATE_TYPE_IDX(NODE) \
+ (TEMPLATE_PARM_IDX (TEMPLATE_TYPE_PARM_INDEX (NODE)))
+#define TEMPLATE_TYPE_LEVEL(NODE) \
+ (TEMPLATE_PARM_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
+#define TEMPLATE_TYPE_ORIG_LEVEL(NODE) \
+ (TEMPLATE_PARM_ORIG_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
+#define TEMPLATE_TYPE_DECL(NODE) \
+ (TEMPLATE_PARM_DECL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
+#define TEMPLATE_TYPE_PARAMETER_PACK(NODE) \
+ (TEMPLATE_PARM_PARAMETER_PACK (TEMPLATE_TYPE_PARM_INDEX (NODE)))
+
+/* True iff this TEMPLATE_TYPE_PARM represents decltype(auto). */
+#define AUTO_IS_DECLTYPE(NODE) \
+ (TYPE_LANG_FLAG_5 (TEMPLATE_TYPE_PARM_CHECK (NODE)))
+
+/* These constants can used as bit flags in the process of tree formatting.
+
+ TFF_PLAIN_IDENTIFIER: unqualified part of a name.
+ TFF_SCOPE: include the class and namespace scope of the name.
+ TFF_CHASE_TYPEDEF: print the original type-id instead of the typedef-name.
+ TFF_DECL_SPECIFIERS: print decl-specifiers.
+ TFF_CLASS_KEY_OR_ENUM: precede a class-type name (resp. enum name) with
+ a class-key (resp. `enum').
+ TFF_RETURN_TYPE: include function return type.
+ TFF_FUNCTION_DEFAULT_ARGUMENTS: include function default parameter values.
+ TFF_EXCEPTION_SPECIFICATION: show function exception specification.
+ TFF_TEMPLATE_HEADER: show the template<...> header in a
+ template-declaration.
+ TFF_TEMPLATE_NAME: show only template-name.
+ TFF_EXPR_IN_PARENS: parenthesize expressions.
+ TFF_NO_FUNCTION_ARGUMENTS: don't show function arguments.
+ TFF_UNQUALIFIED_NAME: do not print the qualifying scope of the
+ top-level entity.
+ TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS: do not omit template arguments
+ identical to their defaults.
+ TFF_NO_TEMPLATE_BINDINGS: do not print information about the template
+ arguments for a function template specialization. */
+
+#define TFF_PLAIN_IDENTIFIER (0)
+#define TFF_SCOPE (1)
+#define TFF_CHASE_TYPEDEF (1 << 1)
+#define TFF_DECL_SPECIFIERS (1 << 2)
+#define TFF_CLASS_KEY_OR_ENUM (1 << 3)
+#define TFF_RETURN_TYPE (1 << 4)
+#define TFF_FUNCTION_DEFAULT_ARGUMENTS (1 << 5)
+#define TFF_EXCEPTION_SPECIFICATION (1 << 6)
+#define TFF_TEMPLATE_HEADER (1 << 7)
+#define TFF_TEMPLATE_NAME (1 << 8)
+#define TFF_EXPR_IN_PARENS (1 << 9)
+#define TFF_NO_FUNCTION_ARGUMENTS (1 << 10)
+#define TFF_UNQUALIFIED_NAME (1 << 11)
+#define TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS (1 << 12)
+#define TFF_NO_TEMPLATE_BINDINGS (1 << 13)
+
+/* Returns the TEMPLATE_DECL associated to a TEMPLATE_TEMPLATE_PARM
+ node. */
+#define TEMPLATE_TEMPLATE_PARM_TEMPLATE_DECL(NODE) \
+ ((TREE_CODE (NODE) == BOUND_TEMPLATE_TEMPLATE_PARM) \
+ ? TYPE_TI_TEMPLATE (NODE) \
+ : TYPE_NAME (NODE))
+
+/* in lex.c */
+
+extern void init_reswords (void);
+
+typedef struct GTY(()) operator_name_info_t {
+ /* The IDENTIFIER_NODE for the operator. */
+ tree identifier;
+ /* The name of the operator. */
+ const char *name;
+ /* The mangled name of the operator. */
+ const char *mangled_name;
+ /* The arity of the operator. */
+ int arity;
+} operator_name_info_t;
+
+/* A mapping from tree codes to operator name information. */
+extern GTY(()) operator_name_info_t operator_name_info
+ [(int) MAX_TREE_CODES];
+/* Similar, but for assignment operators. */
+extern GTY(()) operator_name_info_t assignment_operator_name_info
+ [(int) MAX_TREE_CODES];
+
+/* A type-qualifier, or bitmask therefore, using the TYPE_QUAL
+ constants. */
+
+typedef int cp_cv_quals;
+
+/* Non-static member functions have an optional virt-specifier-seq.
+ There is a VIRT_SPEC value for each virt-specifier.
+ They can be combined by bitwise-or to form the complete set of
+ virt-specifiers for a member function. */
+enum virt_specifier
+ {
+ VIRT_SPEC_UNSPECIFIED = 0x0,
+ VIRT_SPEC_FINAL = 0x1,
+ VIRT_SPEC_OVERRIDE = 0x2
+ };
+
+/* A type-qualifier, or bitmask therefore, using the VIRT_SPEC
+ constants. */
+
+typedef int cp_virt_specifiers;
+
+/* Wherever there is a function-cv-qual, there could also be a ref-qualifier:
+
+ [dcl.fct]
+ The return type, the parameter-type-list, the ref-qualifier, and
+ the cv-qualifier-seq, but not the default arguments or the exception
+ specification, are part of the function type.
+
+ REF_QUAL_NONE Ordinary member function with no ref-qualifier
+ REF_QUAL_LVALUE Member function with the &-ref-qualifier
+ REF_QUAL_RVALUE Member function with the &&-ref-qualifier */
+
+enum cp_ref_qualifier {
+ REF_QUAL_NONE = 0,
+ REF_QUAL_LVALUE = 1,
+ REF_QUAL_RVALUE = 2
+};
+
+/* A storage class. */
+
+typedef enum cp_storage_class {
+ /* sc_none must be zero so that zeroing a cp_decl_specifier_seq
+ sets the storage_class field to sc_none. */
+ sc_none = 0,
+ sc_auto,
+ sc_register,
+ sc_static,
+ sc_extern,
+ sc_mutable
+} cp_storage_class;
+
+/* An individual decl-specifier. This is used to index the array of
+ locations for the declspecs in struct cp_decl_specifier_seq
+ below. */
+
+typedef enum cp_decl_spec {
+ ds_first,
+ ds_signed = ds_first,
+ ds_unsigned,
+ ds_short,
+ ds_long,
+ ds_const,
+ ds_volatile,
+ ds_restrict,
+ ds_inline,
+ ds_virtual,
+ ds_explicit,
+ ds_friend,
+ ds_typedef,
+ ds_alias,
+ ds_constexpr,
+ ds_complex,
+ ds_thread,
+ ds_type_spec,
+ ds_redefined_builtin_type_spec,
+ ds_attribute,
+ ds_std_attribute,
+ ds_storage_class,
+ ds_long_long,
+ ds_last /* This enumerator must always be the last one. */
+} cp_decl_spec;
+
+/* A decl-specifier-seq. */
+
+typedef struct cp_decl_specifier_seq {
+ /* An array of locations for the declaration sepecifiers, indexed by
+ enum cp_decl_spec_word. */
+ source_location locations[ds_last];
+ /* The primary type, if any, given by the decl-specifier-seq.
+ Modifiers, like "short", "const", and "unsigned" are not
+ reflected here. This field will be a TYPE, unless a typedef-name
+ was used, in which case it will be a TYPE_DECL. */
+ tree type;
+ /* The attributes, if any, provided with the specifier sequence. */
+ tree attributes;
+ /* The c++11 attributes that follows the type specifier. */
+ tree std_attributes;
+ /* If non-NULL, a built-in type that the user attempted to redefine
+ to some other type. */
+ tree redefined_builtin_type;
+ /* The storage class specified -- or sc_none if no storage class was
+ explicitly specified. */
+ cp_storage_class storage_class;
+ /* True iff TYPE_SPEC defines a class or enum. */
+ BOOL_BITFIELD type_definition_p : 1;
+ /* True iff multiple types were (erroneously) specified for this
+ decl-specifier-seq. */
+ BOOL_BITFIELD multiple_types_p : 1;
+ /* True iff multiple storage classes were (erroneously) specified
+ for this decl-specifier-seq or a combination of a storage class
+ with a typedef specifier. */
+ BOOL_BITFIELD conflicting_specifiers_p : 1;
+ /* True iff at least one decl-specifier was found. */
+ BOOL_BITFIELD any_specifiers_p : 1;
+ /* True iff at least one type-specifier was found. */
+ BOOL_BITFIELD any_type_specifiers_p : 1;
+ /* True iff "int" was explicitly provided. */
+ BOOL_BITFIELD explicit_int_p : 1;
+ /* True iff "__int128" was explicitly provided. */
+ BOOL_BITFIELD explicit_int128_p : 1;
+ /* True iff "char" was explicitly provided. */
+ BOOL_BITFIELD explicit_char_p : 1;
+ /* True iff ds_thread is set for __thread, not thread_local. */
+ BOOL_BITFIELD gnu_thread_keyword_p : 1;
+} cp_decl_specifier_seq;
+
+/* The various kinds of declarators. */
+
+typedef enum cp_declarator_kind {
+ cdk_id,
+ cdk_function,
+ cdk_array,
+ cdk_pointer,
+ cdk_reference,
+ cdk_ptrmem,
+ cdk_error
+} cp_declarator_kind;
+
+/* A declarator. */
+
+typedef struct cp_declarator cp_declarator;
+
+typedef struct cp_parameter_declarator cp_parameter_declarator;
+
+/* A parameter, before it has been semantically analyzed. */
+struct cp_parameter_declarator {
+ /* The next parameter, or NULL_TREE if none. */
+ cp_parameter_declarator *next;
+ /* The decl-specifiers-seq for the parameter. */
+ cp_decl_specifier_seq decl_specifiers;
+ /* The declarator for the parameter. */
+ cp_declarator *declarator;
+ /* The default-argument expression, or NULL_TREE, if none. */
+ tree default_argument;
+ /* True iff this is the first parameter in the list and the
+ parameter sequence ends with an ellipsis. */
+ bool ellipsis_p;
+};
+
+/* A declarator. */
+struct cp_declarator {
+ /* The kind of declarator. */
+ ENUM_BITFIELD (cp_declarator_kind) kind : 4;
+ /* Whether we parsed an ellipsis (`...') just before the declarator,
+ to indicate this is a parameter pack. */
+ BOOL_BITFIELD parameter_pack_p : 1;
+ location_t id_loc; /* Currently only set for cdk_id and cdk_function. */
+ /* GNU Attributes that apply to this declarator. If the declarator
+ is a pointer or a reference, these attribute apply to the type
+ pointed to. */
+ tree attributes;
+ /* Standard C++11 attributes that apply to this declarator. If the
+ declarator is a pointer or a reference, these attributes apply
+ to the pointer, rather than to the type pointed to. */
+ tree std_attributes;
+ /* For all but cdk_id and cdk_error, the contained declarator. For
+ cdk_id and cdk_error, guaranteed to be NULL. */
+ cp_declarator *declarator;
+ union {
+ /* For identifiers. */
+ struct {
+ /* If non-NULL, the qualifying scope (a NAMESPACE_DECL or
+ *_TYPE) for this identifier. */
+ tree qualifying_scope;
+ /* The unqualified name of the entity -- an IDENTIFIER_NODE,
+ BIT_NOT_EXPR, or TEMPLATE_ID_EXPR. */
+ tree unqualified_name;
+ /* If this is the name of a function, what kind of special
+ function (if any). */
+ special_function_kind sfk;
+ } id;
+ /* For functions. */
+ struct {
+ /* The parameters to the function as a TREE_LIST of decl/default. */
+ tree parameters;
+ /* The cv-qualifiers for the function. */
+ cp_cv_quals qualifiers;
+ /* The virt-specifiers for the function. */
+ cp_virt_specifiers virt_specifiers;
+ /* The ref-qualifier for the function. */
+ cp_ref_qualifier ref_qualifier;
+ /* The exception-specification for the function. */
+ tree exception_specification;
+ /* The late-specified return type, if any. */
+ tree late_return_type;
+ } function;
+ /* For arrays. */
+ struct {
+ /* The bounds to the array. */
+ tree bounds;
+ } array;
+ /* For cdk_pointer and cdk_ptrmem. */
+ struct {
+ /* The cv-qualifiers for the pointer. */
+ cp_cv_quals qualifiers;
+ /* For cdk_ptrmem, the class type containing the member. */
+ tree class_type;
+ } pointer;
+ /* For cdk_reference */
+ struct {
+ /* The cv-qualifiers for the reference. These qualifiers are
+ only used to diagnose ill-formed code. */
+ cp_cv_quals qualifiers;
+ /* Whether this is an rvalue reference */
+ bool rvalue_ref;
+ } reference;
+ } u;
+};
+
+/* A level of template instantiation. */
+struct GTY((chain_next ("%h.next"))) tinst_level {
+ /* The immediately deeper level in the chain. */
+ struct tinst_level *next;
+
+ /* The original node. Can be either a DECL (for a function or static
+ data member) or a TYPE (for a class), depending on what we were
+ asked to instantiate. */
+ tree decl;
+
+ /* The location where the template is instantiated. */
+ location_t locus;
+
+ /* errorcount+sorrycount when we pushed this level. */
+ int errors;
+
+ /* True if the location is in a system header. */
+ bool in_system_header_p;
+};
+
+bool decl_spec_seq_has_spec_p (const cp_decl_specifier_seq *, cp_decl_spec);
+
+/* Return the type of the `this' parameter of FNTYPE. */
+
+inline tree
+type_of_this_parm (const_tree fntype)
+{
+ function_args_iterator iter;
+ gcc_assert (TREE_CODE (fntype) == METHOD_TYPE);
+ function_args_iter_init (&iter, fntype);
+ return function_args_iter_cond (&iter);
+}
+
+/* Return the class of the `this' parameter of FNTYPE. */
+
+inline tree
+class_of_this_parm (const_tree fntype)
+{
+ return TREE_TYPE (type_of_this_parm (fntype));
+}
+
+/* A parameter list indicating for a function with no parameters,
+ e.g "int f(void)". */
+extern cp_parameter_declarator *no_parameters;
+
+/* True if we saw "#pragma GCC java_exceptions". */
+extern bool pragma_java_exceptions;
+
+/* in call.c */
+extern bool check_dtor_name (tree, tree);
+bool magic_varargs_p (tree);
+
+extern tree build_conditional_expr (location_t, tree, tree, tree,
+ tsubst_flags_t);
+extern tree build_addr_func (tree, tsubst_flags_t);
+extern void set_flags_from_callee (tree);
+extern tree build_call_a (tree, int, tree*);
+extern tree build_call_n (tree, int, ...);
+extern bool null_ptr_cst_p (tree);
+extern bool null_member_pointer_value_p (tree);
+extern bool sufficient_parms_p (const_tree);
+extern tree type_decays_to (tree);
+extern tree build_user_type_conversion (tree, tree, int,
+ tsubst_flags_t);
+extern tree build_new_function_call (tree, vec<tree, va_gc> **, bool,
+ tsubst_flags_t);
+extern tree build_operator_new_call (tree, vec<tree, va_gc> **, tree *,
+ tree *, tree, tree *,
+ tsubst_flags_t);
+extern tree build_new_method_call (tree, tree, vec<tree, va_gc> **,
+ tree, int, tree *,
+ tsubst_flags_t);
+extern tree build_special_member_call (tree, tree, vec<tree, va_gc> **,
+ tree, int, tsubst_flags_t);
+extern tree build_new_op (location_t, enum tree_code,
+ int, tree, tree, tree, tree *,
+ tsubst_flags_t);
+extern tree build_op_call (tree, vec<tree, va_gc> **,
+ tsubst_flags_t);
+extern tree build_op_delete_call (enum tree_code, tree, tree,
+ bool, tree, tree,
+ tsubst_flags_t);
+extern bool can_convert (tree, tree, tsubst_flags_t);
+extern bool can_convert_standard (tree, tree, tsubst_flags_t);
+extern bool can_convert_arg (tree, tree, tree, int,
+ tsubst_flags_t);
+extern bool can_convert_arg_bad (tree, tree, tree, int,
+ tsubst_flags_t);
+extern bool enforce_access (tree, tree, tree,
+ tsubst_flags_t);
+extern void push_defarg_context (tree);
+extern void pop_defarg_context (void);
+extern tree convert_default_arg (tree, tree, tree, int,
+ tsubst_flags_t);
+extern tree convert_arg_to_ellipsis (tree, tsubst_flags_t);
+extern tree build_x_va_arg (source_location, tree, tree);
+extern tree cxx_type_promotes_to (tree);
+extern tree type_passed_as (tree);
+extern tree convert_for_arg_passing (tree, tree, tsubst_flags_t);
+extern bool is_properly_derived_from (tree, tree);
+extern tree initialize_reference (tree, tree, int,
+ tsubst_flags_t);
+extern tree extend_ref_init_temps (tree, tree, vec<tree, va_gc>**);
+extern tree make_temporary_var_for_ref_to_temp (tree, tree);
+extern bool type_has_extended_temps (tree);
+extern tree strip_top_quals (tree);
+extern bool reference_related_p (tree, tree);
+extern tree perform_implicit_conversion (tree, tree, tsubst_flags_t);
+extern tree perform_implicit_conversion_flags (tree, tree, tsubst_flags_t, int);
+extern tree build_integral_nontype_arg_conv (tree, tree, tsubst_flags_t);
+extern tree perform_direct_initialization_if_possible (tree, tree, bool,
+ tsubst_flags_t);
+extern tree in_charge_arg_for_name (tree);
+extern tree build_cxx_call (tree, int, tree *,
+ tsubst_flags_t);
+extern bool is_std_init_list (tree);
+extern bool is_list_ctor (tree);
+#ifdef ENABLE_CHECKING
+extern void validate_conversion_obstack (void);
+#endif /* ENABLE_CHECKING */
+extern void mark_versions_used (tree);
+extern tree get_function_version_dispatcher (tree);
+
+/* in class.c */
+extern tree build_vfield_ref (tree, tree);
+extern tree build_base_path (enum tree_code, tree,
+ tree, int, tsubst_flags_t);
+extern tree convert_to_base (tree, tree, bool, bool,
+ tsubst_flags_t);
+extern tree convert_to_base_statically (tree, tree);
+extern tree build_vtbl_ref (tree, tree);
+extern tree build_vfn_ref (tree, tree);
+extern tree get_vtable_decl (tree, int);
+extern void resort_type_method_vec (void *, void *,
+ gt_pointer_operator, void *);
+extern bool add_method (tree, tree, tree);
+extern bool currently_open_class (tree);
+extern tree currently_open_derived_class (tree);
+extern tree current_nonlambda_class_type (void);
+extern tree finish_struct (tree, tree);
+extern void finish_struct_1 (tree);
+extern int resolves_to_fixed_type_p (tree, int *);
+extern void init_class_processing (void);
+extern int is_empty_class (tree);
+extern bool is_really_empty_class (tree);
+extern void pushclass (tree);
+extern void popclass (void);
+extern void push_nested_class (tree);
+extern void pop_nested_class (void);
+extern int current_lang_depth (void);
+extern void push_lang_context (tree);
+extern void pop_lang_context (void);
+extern tree instantiate_type (tree, tree, tsubst_flags_t);
+extern void print_class_statistics (void);
+extern void build_self_reference (void);
+extern int same_signature_p (const_tree, const_tree);
+extern void maybe_add_class_template_decl_list (tree, tree, int);
+extern void unreverse_member_declarations (tree);
+extern void invalidate_class_lookup_cache (void);
+extern void maybe_note_name_used_in_class (tree, tree);
+extern void note_name_declared_in_class (tree, tree);
+extern tree get_vtbl_decl_for_binfo (tree);
+extern void debug_class (tree);
+extern void debug_thunks (tree);
+extern void set_linkage_according_to_type (tree, tree);
+extern void determine_key_method (tree);
+extern void check_for_override (tree, tree);
+extern void push_class_stack (void);
+extern void pop_class_stack (void);
+extern bool type_has_user_nondefault_constructor (tree);
+extern tree in_class_defaulted_default_constructor (tree);
+extern bool user_provided_p (tree);
+extern bool type_has_user_provided_constructor (tree);
+extern bool type_has_user_provided_default_constructor (tree);
+extern bool vbase_has_user_provided_move_assign (tree);
+extern tree default_init_uninitialized_part (tree);
+extern bool trivial_default_constructor_is_constexpr (tree);
+extern bool type_has_constexpr_default_constructor (tree);
+extern bool type_has_virtual_destructor (tree);
+extern bool type_has_move_constructor (tree);
+extern bool type_has_move_assign (tree);
+extern bool type_has_user_declared_move_constructor (tree);
+extern bool type_has_user_declared_move_assign(tree);
+extern bool type_build_ctor_call (tree);
+extern bool type_build_dtor_call (tree);
+extern void explain_non_literal_class (tree);
+extern void defaulted_late_check (tree);
+extern bool defaultable_fn_check (tree);
+extern void fixup_type_variants (tree);
+extern void fixup_attribute_variants (tree);
+extern tree* decl_cloned_function_p (const_tree, bool);
+extern void clone_function_decl (tree, int);
+extern void adjust_clone_args (tree);
+extern void deduce_noexcept_on_destructor (tree);
+extern void insert_late_enum_def_into_classtype_sorted_fields (tree, tree);
+extern bool uniquely_derived_from_p (tree, tree);
+extern bool publicly_uniquely_derived_p (tree, tree);
+extern tree common_enclosing_class (tree, tree);
+
+/* in cvt.c */
+extern tree convert_to_reference (tree, tree, int, int, tree,
+ tsubst_flags_t);
+extern tree convert_from_reference (tree);
+extern tree force_rvalue (tree, tsubst_flags_t);
+extern tree ocp_convert (tree, tree, int, int,
+ tsubst_flags_t);
+extern tree cp_convert (tree, tree, tsubst_flags_t);
+extern tree cp_convert_and_check (tree, tree, tsubst_flags_t);
+extern tree cp_fold_convert (tree, tree);
+extern tree convert_to_void (tree, impl_conv_void,
+ tsubst_flags_t);
+extern tree convert_force (tree, tree, int,
+ tsubst_flags_t);
+extern tree build_expr_type_conversion (int, tree, bool);
+extern tree type_promotes_to (tree);
+extern tree perform_qualification_conversions (tree, tree);
+
+/* in name-lookup.c */
+extern tree pushdecl (tree);
+extern tree pushdecl_maybe_friend (tree, bool);
+extern void maybe_push_cleanup_level (tree);
+extern tree pushtag (tree, tree, tag_scope);
+extern tree make_anon_name (void);
+extern tree pushdecl_top_level_maybe_friend (tree, bool);
+extern tree pushdecl_top_level_and_finish (tree, tree);
+extern tree check_for_out_of_scope_variable (tree);
+extern void dump (cp_binding_level &ref);
+extern void dump (cp_binding_level *ptr);
+extern void print_other_binding_stack (cp_binding_level *);
+extern tree maybe_push_decl (tree);
+extern tree current_decl_namespace (void);
+
+/* decl.c */
+extern tree poplevel (int, int, int);
+extern void cxx_init_decl_processing (void);
+enum cp_tree_node_structure_enum cp_tree_node_structure
+ (union lang_tree_node *);
+extern void finish_scope (void);
+extern void push_switch (tree);
+extern void pop_switch (void);
+extern tree make_lambda_name (void);
+extern int decls_match (tree, tree);
+extern tree duplicate_decls (tree, tree, bool);
+extern tree declare_local_label (tree);
+extern tree define_label (location_t, tree);
+extern void check_goto (tree);
+extern bool check_omp_return (void);
+extern tree make_typename_type (tree, tree, enum tag_types, tsubst_flags_t);
+extern tree make_unbound_class_template (tree, tree, tree, tsubst_flags_t);
+extern tree build_library_fn_ptr (const char *, tree, int);
+extern tree build_cp_library_fn_ptr (const char *, tree, int);
+extern tree push_library_fn (tree, tree, tree, int);
+extern tree push_void_library_fn (tree, tree, int);
+extern tree push_throw_library_fn (tree, tree);
+extern void warn_misplaced_attr_for_class_type (source_location location,
+ tree class_type);
+extern tree check_tag_decl (cp_decl_specifier_seq *, bool);
+extern tree shadow_tag (cp_decl_specifier_seq *);
+extern tree groktypename (cp_decl_specifier_seq *, const cp_declarator *, bool);
+extern tree start_decl (const cp_declarator *, cp_decl_specifier_seq *, int, tree, tree, tree *);
+extern void start_decl_1 (tree, bool);
+extern bool check_array_initializer (tree, tree, tree);
+extern void cp_finish_decl (tree, tree, bool, tree, int);
+extern int cp_complete_array_type (tree *, tree, bool);
+extern int cp_complete_array_type_or_error (tree *, tree, bool, tsubst_flags_t);
+extern tree build_ptrmemfunc_type (tree);
+extern tree build_ptrmem_type (tree, tree);
+/* the grokdeclarator prototype is in decl.h */
+extern tree build_this_parm (tree, cp_cv_quals);
+extern int copy_fn_p (const_tree);
+extern bool move_fn_p (const_tree);
+extern bool move_signature_fn_p (const_tree);
+extern tree get_scope_of_declarator (const cp_declarator *);
+extern void grok_special_member_properties (tree);
+extern int grok_ctor_properties (const_tree, const_tree);
+extern bool grok_op_properties (tree, bool);
+extern tree xref_tag (enum tag_types, tree, tag_scope, bool);
+extern tree xref_tag_from_type (tree, tree, tag_scope);
+extern bool xref_basetypes (tree, tree);
+extern tree start_enum (tree, tree, tree, bool, bool *);
+extern void finish_enum_value_list (tree);
+extern void finish_enum (tree);
+extern void build_enumerator (tree, tree, tree, location_t);
+extern tree lookup_enumerator (tree, tree);
+extern bool start_preparsed_function (tree, tree, int);
+extern bool start_function (cp_decl_specifier_seq *,
+ const cp_declarator *, tree);
+extern tree begin_function_body (void);
+extern void finish_function_body (tree);
+extern tree outer_curly_brace_block (tree);
+extern tree finish_function (int);
+extern tree grokmethod (cp_decl_specifier_seq *, const cp_declarator *, tree);
+extern void maybe_register_incomplete_var (tree);
+extern void maybe_commonize_var (tree);
+extern void complete_vars (tree);
+extern tree static_fn_type (tree);
+extern void revert_static_member_fn (tree);
+extern void fixup_anonymous_aggr (tree);
+extern tree compute_array_index_type (tree, tree, tsubst_flags_t);
+extern tree check_default_argument (tree, tree, tsubst_flags_t);
+typedef int (*walk_namespaces_fn) (tree, void *);
+extern int walk_namespaces (walk_namespaces_fn,
+ void *);
+extern int wrapup_globals_for_namespace (tree, void *);
+extern tree create_implicit_typedef (tree, tree);
+extern int local_variable_p (const_tree);
+extern tree register_dtor_fn (tree);
+extern tmpl_spec_kind current_tmpl_spec_kind (int);
+extern tree cp_fname_init (const char *, tree *);
+extern tree cxx_builtin_function (tree decl);
+extern tree cxx_builtin_function_ext_scope (tree decl);
+extern tree check_elaborated_type_specifier (enum tag_types, tree, bool);
+extern void warn_extern_redeclared_static (tree, tree);
+extern tree cxx_comdat_group (tree);
+extern bool cp_missing_noreturn_ok_p (tree);
+extern void initialize_artificial_var (tree, vec<constructor_elt, va_gc> *);
+extern tree check_var_type (tree, tree);
+extern tree reshape_init (tree, tree, tsubst_flags_t);
+extern tree next_initializable_field (tree);
+extern tree fndecl_declared_return_type (tree);
+extern bool undeduced_auto_decl (tree);
+extern void require_deduced_type (tree);
+
+extern bool defer_mark_used_calls;
+extern GTY(()) vec<tree, va_gc> *deferred_mark_used_calls;
+extern tree finish_case_label (location_t, tree, tree);
+extern tree cxx_maybe_build_cleanup (tree, tsubst_flags_t);
+
+/* in decl2.c */
+extern bool check_java_method (tree);
+extern tree build_memfn_type (tree, tree, cp_cv_quals, cp_ref_qualifier);
+extern tree build_pointer_ptrmemfn_type (tree);
+extern tree change_return_type (tree, tree);
+extern void maybe_retrofit_in_chrg (tree);
+extern void maybe_make_one_only (tree);
+extern bool vague_linkage_p (tree);
+extern void grokclassfn (tree, tree,
+ enum overload_flags);
+extern tree grok_array_decl (location_t, tree, tree, bool);
+extern tree delete_sanity (tree, tree, bool, int, tsubst_flags_t);
+extern tree check_classfn (tree, tree, tree);
+extern void check_member_template (tree);
+extern tree grokfield (const cp_declarator *, cp_decl_specifier_seq *,
+ tree, bool, tree, tree);
+extern tree grokbitfield (const cp_declarator *, cp_decl_specifier_seq *,
+ tree, tree);
+extern tree cp_reconstruct_complex_type (tree, tree);
+extern bool attributes_naming_typedef_ok (tree);
+extern void cplus_decl_attributes (tree *, tree, int);
+extern void finish_anon_union (tree);
+extern void cp_write_global_declarations (void);
+extern tree coerce_new_type (tree);
+extern tree coerce_delete_type (tree);
+extern void comdat_linkage (tree);
+extern void determine_visibility (tree);
+extern void constrain_class_visibility (tree);
+extern void reset_type_linkage (tree);
+extern void tentative_decl_linkage (tree);
+extern void import_export_decl (tree);
+extern tree build_cleanup (tree);
+extern tree build_offset_ref_call_from_tree (tree, vec<tree, va_gc> **,
+ tsubst_flags_t);
+extern bool decl_constant_var_p (tree);
+extern bool decl_maybe_constant_var_p (tree);
+extern void no_linkage_error (tree);
+extern void check_default_args (tree);
+extern bool mark_used (tree);
+extern bool mark_used (tree, tsubst_flags_t);
+extern void finish_static_data_member_decl (tree, tree, bool, tree, int);
+extern tree cp_build_parm_decl (tree, tree);
+extern tree get_guard (tree);
+extern tree get_guard_cond (tree);
+extern tree set_guard (tree);
+extern tree get_tls_wrapper_fn (tree);
+extern void mark_needed (tree);
+extern bool decl_needed_p (tree);
+extern void note_vague_linkage_fn (tree);
+extern tree build_artificial_parm (tree, tree);
+extern bool possibly_inlined_p (tree);
+extern int parm_index (tree);
+extern tree vtv_start_verification_constructor_init_function (void);
+extern tree vtv_finish_verification_constructor_init_function (tree);
+extern bool cp_omp_mappable_type (tree);
+
+/* in error.c */
+extern void init_error (void);
+extern const char *type_as_string (tree, int);
+extern const char *type_as_string_translate (tree, int);
+extern const char *decl_as_string (tree, int);
+extern const char *decl_as_string_translate (tree, int);
+extern const char *decl_as_dwarf_string (tree, int);
+extern const char *expr_as_string (tree, int);
+extern const char *lang_decl_name (tree, int, bool);
+extern const char *lang_decl_dwarf_name (tree, int, bool);
+extern const char *language_to_string (enum languages);
+extern const char *class_key_or_enum_as_string (tree);
+extern void print_instantiation_context (void);
+extern void maybe_warn_variadic_templates (void);
+extern void maybe_warn_cpp0x (cpp0x_warn_str str);
+extern bool pedwarn_cxx98 (location_t, int, const char *, ...) ATTRIBUTE_GCC_DIAG(3,4);
+extern location_t location_of (tree);
+extern void qualified_name_lookup_error (tree, tree, tree,
+ location_t);
+
+/* in except.c */
+extern void init_exception_processing (void);
+extern tree expand_start_catch_block (tree);
+extern void expand_end_catch_block (void);
+extern tree build_exc_ptr (void);
+extern tree build_throw (tree);
+extern int nothrow_libfn_p (const_tree);
+extern void check_handlers (tree);
+extern tree finish_noexcept_expr (tree, tsubst_flags_t);
+extern bool expr_noexcept_p (tree, tsubst_flags_t);
+extern void perform_deferred_noexcept_checks (void);
+extern bool nothrow_spec_p (const_tree);
+extern bool type_noexcept_p (const_tree);
+extern bool type_throw_all_p (const_tree);
+extern tree build_noexcept_spec (tree, int);
+extern void choose_personality_routine (enum languages);
+extern tree build_must_not_throw_expr (tree,tree);
+extern tree eh_type_info (tree);
+extern tree begin_eh_spec_block (void);
+extern void finish_eh_spec_block (tree, tree);
+extern tree build_eh_type_type (tree);
+extern tree cp_protect_cleanup_actions (void);
+extern tree create_try_catch_expr (tree, tree);
+
+/* in expr.c */
+extern tree cplus_expand_constant (tree);
+extern tree mark_rvalue_use (tree);
+extern tree mark_lvalue_use (tree);
+extern tree mark_type_use (tree);
+extern void mark_exp_read (tree);
+
+/* friend.c */
+extern int is_friend (tree, tree);
+extern void make_friend_class (tree, tree, bool);
+extern void add_friend (tree, tree, bool);
+extern tree do_friend (tree, tree, tree, tree, enum overload_flags, bool);
+
+/* in init.c */
+extern tree expand_member_init (tree);
+extern void emit_mem_initializers (tree);
+extern tree build_aggr_init (tree, tree, int,
+ tsubst_flags_t);
+extern int is_class_type (tree, int);
+extern tree get_type_value (tree);
+extern tree build_zero_init (tree, tree, bool);
+extern tree build_value_init (tree, tsubst_flags_t);
+extern tree build_value_init_noctor (tree, tsubst_flags_t);
+extern tree build_offset_ref (tree, tree, bool,
+ tsubst_flags_t);
+extern tree throw_bad_array_new_length (void);
+extern tree throw_bad_array_length (void);
+extern tree build_new (vec<tree, va_gc> **, tree, tree,
+ vec<tree, va_gc> **, int,
+ tsubst_flags_t);
+extern tree get_temp_regvar (tree, tree);
+extern tree build_vec_init (tree, tree, tree, bool, int,
+ tsubst_flags_t);
+extern tree build_delete (tree, tree,
+ special_function_kind,
+ int, int, tsubst_flags_t);
+extern void push_base_cleanups (void);
+extern tree build_vec_delete (tree, tree,
+ special_function_kind, int,
+ tsubst_flags_t);
+extern tree create_temporary_var (tree);
+extern void initialize_vtbl_ptrs (tree);
+extern tree build_java_class_ref (tree);
+extern tree integral_constant_value (tree);
+extern tree decl_constant_value_safe (tree);
+extern int diagnose_uninitialized_cst_or_ref_member (tree, bool, bool);
+extern tree build_vtbl_address (tree);
+
+/* in lex.c */
+extern void cxx_dup_lang_specific_decl (tree);
+extern void yyungetc (int, int);
+
+extern tree unqualified_name_lookup_error (tree);
+extern tree unqualified_fn_lookup_error (tree);
+extern tree build_lang_decl (enum tree_code, tree, tree);
+extern tree build_lang_decl_loc (location_t, enum tree_code, tree, tree);
+extern void retrofit_lang_decl (tree);
+extern tree copy_decl (tree);
+extern tree copy_type (tree);
+extern tree cxx_make_type (enum tree_code);
+extern tree make_class_type (enum tree_code);
+extern bool cxx_init (void);
+extern void cxx_finish (void);
+extern bool in_main_input_context (void);
+
+/* in method.c */
+extern void init_method (void);
+extern tree make_thunk (tree, bool, tree, tree);
+extern void finish_thunk (tree);
+extern void use_thunk (tree, bool);
+extern bool trivial_fn_p (tree);
+extern bool maybe_explain_implicit_delete (tree);
+extern void explain_implicit_non_constexpr (tree);
+extern void deduce_inheriting_ctor (tree);
+extern void synthesize_method (tree);
+extern tree lazily_declare_fn (special_function_kind,
+ tree);
+extern tree skip_artificial_parms_for (const_tree, tree);
+extern int num_artificial_parms_for (const_tree);
+extern tree make_alias_for (tree, tree);
+extern tree get_copy_ctor (tree, tsubst_flags_t);
+extern tree get_copy_assign (tree);
+extern tree get_default_ctor (tree);
+extern tree get_dtor (tree, tsubst_flags_t);
+extern tree get_inherited_ctor (tree);
+extern tree locate_ctor (tree);
+extern tree implicitly_declare_fn (special_function_kind, tree,
+ bool, tree, tree);
+
+/* In optimize.c */
+extern bool maybe_clone_body (tree);
+
+/* in pt.c */
+extern bool check_template_shadow (tree);
+extern tree get_innermost_template_args (tree, int);
+extern void maybe_begin_member_template_processing (tree);
+extern void maybe_end_member_template_processing (void);
+extern tree finish_member_template_decl (tree);
+extern void begin_template_parm_list (void);
+extern bool begin_specialization (void);
+extern void reset_specialization (void);
+extern void end_specialization (void);
+extern void begin_explicit_instantiation (void);
+extern void end_explicit_instantiation (void);
+extern tree check_explicit_specialization (tree, tree, int, int);
+extern int num_template_headers_for_class (tree);
+extern void check_template_variable (tree);
+extern tree make_auto (void);
+extern tree make_decltype_auto (void);
+extern tree do_auto_deduction (tree, tree, tree);
+extern tree type_uses_auto (tree);
+extern tree type_uses_auto_or_concept (tree);
+extern void append_type_to_template_for_access_check (tree, tree, tree,
+ location_t);
+extern tree convert_generic_types_to_packs (tree, int, int);
+extern tree splice_late_return_type (tree, tree);
+extern bool is_auto (const_tree);
+extern bool is_auto_or_concept (const_tree);
+extern tree process_template_parm (tree, location_t, tree,
+ bool, bool);
+extern tree end_template_parm_list (tree);
+extern void end_template_decl (void);
+extern tree maybe_update_decl_type (tree, tree);
+extern bool check_default_tmpl_args (tree, tree, bool, bool, int);
+extern tree push_template_decl (tree);
+extern tree push_template_decl_real (tree, bool);
+extern tree add_inherited_template_parms (tree, tree);
+extern bool redeclare_class_template (tree, tree);
+extern tree lookup_template_class (tree, tree, tree, tree,
+ int, tsubst_flags_t);
+extern tree lookup_template_function (tree, tree);
+extern int uses_template_parms (tree);
+extern int uses_template_parms_level (tree, int);
+extern bool in_template_function (void);
+extern tree instantiate_class_template (tree);
+extern tree instantiate_template (tree, tree, tsubst_flags_t);
+extern tree fn_type_unification (tree, tree, tree,
+ const tree *, unsigned int,
+ tree, unification_kind_t, int,
+ bool, bool);
+extern void mark_decl_instantiated (tree, int);
+extern int more_specialized_fn (tree, tree, int);
+extern void do_decl_instantiation (tree, tree);
+extern void do_type_instantiation (tree, tree, tsubst_flags_t);
+extern bool always_instantiate_p (tree);
+extern void maybe_instantiate_noexcept (tree);
+extern tree instantiate_decl (tree, int, bool);
+extern int comp_template_parms (const_tree, const_tree);
+extern bool uses_parameter_packs (tree);
+extern bool template_parameter_pack_p (const_tree);
+extern bool function_parameter_pack_p (const_tree);
+extern bool function_parameter_expanded_from_pack_p (tree, tree);
+extern tree make_pack_expansion (tree);
+extern bool check_for_bare_parameter_packs (tree);
+extern tree build_template_info (tree, tree);
+extern tree get_template_info (const_tree);
+extern vec<qualified_typedef_usage_t, va_gc> *get_types_needing_access_check (tree);
+extern int template_class_depth (tree);
+extern int is_specialization_of (tree, tree);
+extern bool is_specialization_of_friend (tree, tree);
+extern tree get_pattern_parm (tree, tree);
+extern int comp_template_args (tree, tree);
+extern tree maybe_process_partial_specialization (tree);
+extern tree most_specialized_instantiation (tree);
+extern void print_candidates (tree);
+extern void instantiate_pending_templates (int);
+extern tree tsubst_default_argument (tree, tree, tree,
+ tsubst_flags_t);
+extern tree tsubst (tree, tree, tsubst_flags_t, tree);
+extern tree tsubst_copy_and_build (tree, tree, tsubst_flags_t,
+ tree, bool, bool);
+extern tree most_general_template (tree);
+extern tree get_mostly_instantiated_function_type (tree);
+extern int problematic_instantiation_changed (void);
+extern void record_last_problematic_instantiation (void);
+extern struct tinst_level *current_instantiation(void);
+extern tree maybe_get_template_decl_from_type_decl (tree);
+extern int processing_template_parmlist;
+extern bool dependent_type_p (tree);
+extern bool dependent_scope_p (tree);
+extern bool any_dependent_template_arguments_p (const_tree);
+extern bool dependent_template_p (tree);
+extern bool dependent_template_id_p (tree, tree);
+extern bool type_dependent_expression_p (tree);
+extern bool any_type_dependent_arguments_p (const vec<tree, va_gc> *);
+extern bool any_type_dependent_elements_p (const_tree);
+extern bool type_dependent_expression_p_push (tree);
+extern bool value_dependent_expression_p (tree);
+extern bool instantiation_dependent_expression_p (tree);
+extern bool any_value_dependent_elements_p (const_tree);
+extern bool dependent_omp_for_p (tree, tree, tree, tree);
+extern tree resolve_typename_type (tree, bool);
+extern tree template_for_substitution (tree);
+extern tree build_non_dependent_expr (tree);
+extern void make_args_non_dependent (vec<tree, va_gc> *);
+extern bool reregister_specialization (tree, tree, tree);
+extern tree fold_non_dependent_expr (tree);
+extern tree fold_non_dependent_expr_sfinae (tree, tsubst_flags_t);
+extern bool alias_type_or_template_p (tree);
+extern bool alias_template_specialization_p (const_tree);
+extern bool explicit_class_specialization_p (tree);
+extern int push_tinst_level (tree);
+extern void pop_tinst_level (void);
+extern struct tinst_level *outermost_tinst_level(void);
+extern void init_template_processing (void);
+extern void print_template_statistics (void);
+bool template_template_parameter_p (const_tree);
+bool template_type_parameter_p (const_tree);
+extern bool primary_template_instantiation_p (const_tree);
+extern tree get_primary_template_innermost_parameters (const_tree);
+extern tree get_template_parms_at_level (tree, int);
+extern tree get_template_innermost_arguments (const_tree);
+extern tree get_template_argument_pack_elems (const_tree);
+extern tree get_function_template_decl (const_tree);
+extern tree resolve_nondeduced_context (tree);
+extern hashval_t iterative_hash_template_arg (tree arg, hashval_t val);
+
+/* in repo.c */
+extern void init_repo (void);
+extern int repo_emit_p (tree);
+extern bool repo_export_class_p (const_tree);
+extern void finish_repo (void);
+
+/* in rtti.c */
+/* A vector of all tinfo decls that haven't been emitted yet. */
+extern GTY(()) vec<tree, va_gc> *unemitted_tinfo_decls;
+
+extern void init_rtti_processing (void);
+extern tree build_typeid (tree, tsubst_flags_t);
+extern tree get_tinfo_decl (tree);
+extern tree get_typeid (tree, tsubst_flags_t);
+extern tree build_headof (tree);
+extern tree build_dynamic_cast (tree, tree, tsubst_flags_t);
+extern void emit_support_tinfos (void);
+extern bool emit_tinfo_decl (tree);
+
+/* in search.c */
+extern bool accessible_base_p (tree, tree, bool);
+extern tree lookup_base (tree, tree, base_access,
+ base_kind *, tsubst_flags_t);
+extern tree dcast_base_hint (tree, tree);
+extern int accessible_p (tree, tree, bool);
+extern int accessible_in_template_p (tree, tree);
+extern tree lookup_field_1 (tree, tree, bool);
+extern tree lookup_field (tree, tree, int, bool);
+extern int lookup_fnfields_1 (tree, tree);
+extern tree lookup_fnfields_slot (tree, tree);
+extern tree lookup_fnfields_slot_nolazy (tree, tree);
+extern int class_method_index_for_fn (tree, tree);
+extern tree lookup_fnfields (tree, tree, int);
+extern tree lookup_member (tree, tree, int, bool,
+ tsubst_flags_t);
+extern int look_for_overrides (tree, tree);
+extern void get_pure_virtuals (tree);
+extern void maybe_suppress_debug_info (tree);
+extern void note_debug_info_needed (tree);
+extern void print_search_statistics (void);
+extern void reinit_search_statistics (void);
+extern tree current_scope (void);
+extern int at_function_scope_p (void);
+extern bool at_class_scope_p (void);
+extern bool at_namespace_scope_p (void);
+extern tree context_for_name_lookup (tree);
+extern tree lookup_conversions (tree);
+extern tree binfo_from_vbase (tree);
+extern tree binfo_for_vbase (tree, tree);
+extern tree look_for_overrides_here (tree, tree);
+#define dfs_skip_bases ((tree)1)
+extern tree dfs_walk_all (tree, tree (*) (tree, void *),
+ tree (*) (tree, void *), void *);
+extern tree dfs_walk_once (tree, tree (*) (tree, void *),
+ tree (*) (tree, void *), void *);
+extern tree binfo_via_virtual (tree, tree);
+extern tree build_baselink (tree, tree, tree, tree);
+extern tree adjust_result_of_qualified_name_lookup
+ (tree, tree, tree);
+extern tree copied_binfo (tree, tree);
+extern tree original_binfo (tree, tree);
+extern int shared_member_p (tree);
+
+/* The representation of a deferred access check. */
+
+typedef struct GTY(()) deferred_access_check {
+ /* The base class in which the declaration is referenced. */
+ tree binfo;
+ /* The declaration whose access must be checked. */
+ tree decl;
+ /* The declaration that should be used in the error message. */
+ tree diag_decl;
+ /* The location of this access. */
+ location_t loc;
+} deferred_access_check;
+
+/* in semantics.c */
+extern void push_deferring_access_checks (deferring_kind);
+extern void resume_deferring_access_checks (void);
+extern void stop_deferring_access_checks (void);
+extern void pop_deferring_access_checks (void);
+extern vec<deferred_access_check, va_gc> *get_deferred_access_checks (void);
+extern void reopen_deferring_access_checks (vec<deferred_access_check, va_gc> *);
+extern void pop_to_parent_deferring_access_checks (void);
+extern bool perform_access_checks (vec<deferred_access_check, va_gc> *,
+ tsubst_flags_t);
+extern bool perform_deferred_access_checks (tsubst_flags_t);
+extern bool perform_or_defer_access_check (tree, tree, tree,
+ tsubst_flags_t);
+extern int stmts_are_full_exprs_p (void);
+extern void init_cp_semantics (void);
+extern tree do_poplevel (tree);
+extern void break_maybe_infinite_loop (void);
+extern void add_decl_expr (tree);
+extern tree maybe_cleanup_point_expr_void (tree);
+extern tree finish_expr_stmt (tree);
+extern tree begin_if_stmt (void);
+extern void finish_if_stmt_cond (tree, tree);
+extern tree finish_then_clause (tree);
+extern void begin_else_clause (tree);
+extern void finish_else_clause (tree);
+extern void finish_if_stmt (tree);
+extern tree begin_while_stmt (void);
+extern void finish_while_stmt_cond (tree, tree, bool);
+extern void finish_while_stmt (tree);
+extern tree begin_do_stmt (void);
+extern void finish_do_body (tree);
+extern void finish_do_stmt (tree, tree, bool);
+extern tree finish_return_stmt (tree);
+extern tree begin_for_scope (tree *);
+extern tree begin_for_stmt (tree, tree);
+extern void finish_for_init_stmt (tree);
+extern void finish_for_cond (tree, tree, bool);
+extern void finish_for_expr (tree, tree);
+extern void finish_for_stmt (tree);
+extern tree begin_range_for_stmt (tree, tree);
+extern void finish_range_for_decl (tree, tree, tree);
+extern void finish_range_for_stmt (tree);
+extern tree finish_break_stmt (void);
+extern tree finish_continue_stmt (void);
+extern tree begin_switch_stmt (void);
+extern void finish_switch_cond (tree, tree);
+extern void finish_switch_stmt (tree);
+extern tree finish_goto_stmt (tree);
+extern tree begin_try_block (void);
+extern void finish_try_block (tree);
+extern void finish_handler_sequence (tree);
+extern tree begin_function_try_block (tree *);
+extern void finish_function_try_block (tree);
+extern void finish_function_handler_sequence (tree, tree);
+extern void finish_cleanup_try_block (tree);
+extern tree begin_handler (void);
+extern void finish_handler_parms (tree, tree);
+extern void finish_handler (tree);
+extern void finish_cleanup (tree, tree);
+extern bool literal_type_p (tree);
+extern tree register_constexpr_fundef (tree, tree);
+extern bool check_constexpr_ctor_body (tree, tree);
+extern tree ensure_literal_type_for_constexpr_object (tree);
+extern bool potential_constant_expression (tree);
+extern bool potential_rvalue_constant_expression (tree);
+extern bool require_potential_constant_expression (tree);
+extern bool require_potential_rvalue_constant_expression (tree);
+extern tree cxx_constant_value (tree);
+extern tree maybe_constant_value (tree);
+extern tree maybe_constant_init (tree);
+extern bool is_sub_constant_expr (tree);
+extern bool reduced_constant_expression_p (tree);
+extern void explain_invalid_constexpr_fn (tree);
+extern vec<tree> cx_error_context (void);
+
+enum {
+ BCS_NO_SCOPE = 1,
+ BCS_TRY_BLOCK = 2,
+ BCS_FN_BODY = 4
+};
+extern tree begin_compound_stmt (unsigned int);
+
+extern void finish_compound_stmt (tree);
+extern tree finish_asm_stmt (int, tree, tree, tree, tree,
+ tree);
+extern tree finish_label_stmt (tree);
+extern void finish_label_decl (tree);
+extern tree finish_parenthesized_expr (tree);
+extern tree force_paren_expr (tree);
+extern tree finish_non_static_data_member (tree, tree, tree);
+extern tree begin_stmt_expr (void);
+extern tree finish_stmt_expr_expr (tree, tree);
+extern tree finish_stmt_expr (tree, bool);
+extern tree stmt_expr_value_expr (tree);
+bool empty_expr_stmt_p (tree);
+extern tree perform_koenig_lookup (tree, vec<tree, va_gc> *,
+ tsubst_flags_t);
+extern tree finish_call_expr (tree, vec<tree, va_gc> **, bool,
+ bool, tsubst_flags_t);
+extern tree finish_increment_expr (tree, enum tree_code);
+extern tree finish_this_expr (void);
+extern tree finish_pseudo_destructor_expr (tree, tree, tree, location_t);
+extern tree finish_unary_op_expr (location_t, enum tree_code, tree,
+ tsubst_flags_t);
+extern tree finish_compound_literal (tree, tree, tsubst_flags_t);
+extern tree finish_fname (tree);
+extern void finish_translation_unit (void);
+extern tree finish_template_type_parm (tree, tree);
+extern tree finish_template_template_parm (tree, tree);
+extern tree begin_class_definition (tree);
+extern void finish_template_decl (tree);
+extern tree finish_template_type (tree, tree, int);
+extern tree finish_base_specifier (tree, tree, bool);
+extern void finish_member_declaration (tree);
+extern tree finish_id_expression (tree, tree, tree,
+ cp_id_kind *,
+ bool, bool, bool *,
+ bool, bool, bool, bool,
+ const char **,
+ location_t);
+extern tree finish_typeof (tree);
+extern tree finish_underlying_type (tree);
+extern tree calculate_bases (tree);
+extern tree finish_bases (tree, bool);
+extern tree calculate_direct_bases (tree);
+extern tree finish_offsetof (tree);
+extern void finish_decl_cleanup (tree, tree);
+extern void finish_eh_cleanup (tree);
+extern void emit_associated_thunks (tree);
+extern void finish_mem_initializers (tree);
+extern tree check_template_template_default_arg (tree);
+extern bool expand_or_defer_fn_1 (tree);
+extern void expand_or_defer_fn (tree);
+extern void add_typedef_to_current_template_for_access_check (tree, tree,
+ location_t);
+extern void check_accessibility_of_qualified_id (tree, tree, tree);
+extern tree finish_qualified_id_expr (tree, tree, bool, bool,
+ bool, bool, tsubst_flags_t);
+extern void simplify_aggr_init_expr (tree *);
+extern void finalize_nrv (tree *, tree, tree);
+extern void note_decl_for_pch (tree);
+extern tree omp_reduction_id (enum tree_code, tree, tree);
+extern tree cp_remove_omp_priv_cleanup_stmt (tree *, int *, void *);
+extern void cp_check_omp_declare_reduction (tree);
+extern tree finish_omp_clauses (tree);
+extern void finish_omp_threadprivate (tree);
+extern tree begin_omp_structured_block (void);
+extern tree finish_omp_structured_block (tree);
+extern tree begin_omp_parallel (void);
+extern tree finish_omp_parallel (tree, tree);
+extern tree begin_omp_task (void);
+extern tree finish_omp_task (tree, tree);
+extern tree finish_omp_for (location_t, enum tree_code,
+ tree, tree, tree, tree, tree,
+ tree, tree);
+extern void finish_omp_atomic (enum tree_code, enum tree_code,
+ tree, tree, tree, tree, tree,
+ bool);
+extern void finish_omp_barrier (void);
+extern void finish_omp_flush (void);
+extern void finish_omp_taskwait (void);
+extern void finish_omp_taskyield (void);
+extern void finish_omp_cancel (tree);
+extern void finish_omp_cancellation_point (tree);
+extern tree begin_transaction_stmt (location_t, tree *, int);
+extern void finish_transaction_stmt (tree, tree, int, tree);
+extern tree build_transaction_expr (location_t, tree, int, tree);
+extern bool cxx_omp_create_clause_info (tree, tree, bool, bool,
+ bool, bool);
+extern tree baselink_for_fns (tree);
+extern void finish_static_assert (tree, tree, location_t,
+ bool);
+extern tree finish_decltype_type (tree, bool, tsubst_flags_t);
+extern tree finish_trait_expr (enum cp_trait_kind, tree, tree);
+extern tree build_lambda_expr (void);
+extern tree build_lambda_object (tree);
+extern tree begin_lambda_type (tree);
+extern tree lambda_capture_field_type (tree, bool);
+extern tree lambda_return_type (tree);
+extern tree lambda_proxy_type (tree);
+extern tree lambda_function (tree);
+extern void apply_deduced_return_type (tree, tree);
+extern tree add_capture (tree, tree, tree, bool, bool);
+extern tree add_default_capture (tree, tree, tree);
+extern tree build_capture_proxy (tree);
+extern void insert_capture_proxy (tree);
+extern void insert_pending_capture_proxies (void);
+extern bool is_capture_proxy (tree);
+extern bool is_normal_capture_proxy (tree);
+extern void register_capture_members (tree);
+extern tree lambda_expr_this_capture (tree);
+extern tree maybe_resolve_dummy (tree);
+extern tree nonlambda_method_basetype (void);
+extern void maybe_add_lambda_conv_op (tree);
+extern bool is_lambda_ignored_entity (tree);
+
+/* in tree.c */
+extern int cp_tree_operand_length (const_tree);
+void cp_free_lang_data (tree t);
+extern tree force_target_expr (tree, tree, tsubst_flags_t);
+extern tree build_target_expr_with_type (tree, tree, tsubst_flags_t);
+extern void lang_check_failed (const char *, int,
+ const char *) ATTRIBUTE_NORETURN;
+extern tree stabilize_expr (tree, tree *);
+extern void stabilize_call (tree, tree *);
+extern bool stabilize_init (tree, tree *);
+extern tree add_stmt_to_compound (tree, tree);
+extern void init_tree (void);
+extern bool pod_type_p (const_tree);
+extern bool layout_pod_type_p (const_tree);
+extern bool std_layout_type_p (const_tree);
+extern bool trivial_type_p (const_tree);
+extern bool trivially_copyable_p (const_tree);
+extern bool scalarish_type_p (const_tree);
+extern bool type_has_nontrivial_default_init (const_tree);
+extern bool type_has_nontrivial_copy_init (const_tree);
+extern bool class_tmpl_impl_spec_p (const_tree);
+extern int zero_init_p (const_tree);
+extern bool check_abi_tag_redeclaration (const_tree, const_tree, const_tree);
+extern tree strip_typedefs (tree);
+extern tree strip_typedefs_expr (tree);
+extern tree copy_binfo (tree, tree, tree,
+ tree *, int);
+extern int member_p (const_tree);
+extern cp_lvalue_kind real_lvalue_p (const_tree);
+extern cp_lvalue_kind lvalue_kind (const_tree);
+extern bool lvalue_or_rvalue_with_address_p (const_tree);
+extern bool xvalue_p (const_tree);
+extern bool builtin_valid_in_constant_expr_p (const_tree);
+extern tree build_min (enum tree_code, tree, ...);
+extern tree build_min_nt_loc (location_t, enum tree_code,
+ ...);
+extern tree build_min_non_dep (enum tree_code, tree, ...);
+extern tree build_min_non_dep_call_vec (tree, tree, vec<tree, va_gc> *);
+extern tree build_cplus_new (tree, tree, tsubst_flags_t);
+extern tree build_aggr_init_expr (tree, tree);
+extern tree get_target_expr (tree);
+extern tree get_target_expr_sfinae (tree, tsubst_flags_t);
+extern tree build_cplus_array_type (tree, tree);
+extern tree build_array_of_n_type (tree, int);
+extern bool array_of_runtime_bound_p (tree);
+extern tree build_array_copy (tree);
+extern tree build_vec_init_expr (tree, tree, tsubst_flags_t);
+extern void diagnose_non_constexpr_vec_init (tree);
+extern tree hash_tree_cons (tree, tree, tree);
+extern tree hash_tree_chain (tree, tree);
+extern tree build_qualified_name (tree, tree, tree, bool);
+extern tree build_ref_qualified_type (tree, cp_ref_qualifier);
+extern int is_overloaded_fn (tree);
+extern tree dependent_name (tree);
+extern tree get_fns (tree);
+extern tree get_first_fn (tree);
+extern tree ovl_cons (tree, tree);
+extern tree build_overload (tree, tree);
+extern tree ovl_scope (tree);
+extern bool non_static_member_function_p (tree);
+extern const char *cxx_printable_name (tree, int);
+extern const char *cxx_printable_name_translate (tree, int);
+extern tree build_exception_variant (tree, tree);
+extern tree bind_template_template_parm (tree, tree);
+extern tree array_type_nelts_total (tree);
+extern tree array_type_nelts_top (tree);
+extern tree break_out_target_exprs (tree);
+extern tree get_type_decl (tree);
+extern tree decl_namespace_context (tree);
+extern bool decl_anon_ns_mem_p (const_tree);
+extern tree lvalue_type (tree);
+extern tree error_type (tree);
+extern int varargs_function_p (const_tree);
+extern bool really_overloaded_fn (tree);
+extern bool cp_tree_equal (tree, tree);
+extern tree no_linkage_check (tree, bool);
+extern void debug_binfo (tree);
+extern tree build_dummy_object (tree);
+extern tree maybe_dummy_object (tree, tree *);
+extern int is_dummy_object (const_tree);
+extern const struct attribute_spec cxx_attribute_table[];
+extern tree make_ptrmem_cst (tree, tree);
+extern tree cp_build_type_attribute_variant (tree, tree);
+extern tree cp_build_reference_type (tree, bool);
+extern tree move (tree);
+extern tree cp_build_qualified_type_real (tree, int, tsubst_flags_t);
+#define cp_build_qualified_type(TYPE, QUALS) \
+ cp_build_qualified_type_real ((TYPE), (QUALS), tf_warning_or_error)
+extern bool cv_qualified_p (const_tree);
+extern tree cv_unqualified (tree);
+extern special_function_kind special_function_p (const_tree);
+extern int count_trees (tree);
+extern int char_type_p (tree);
+extern void verify_stmt_tree (tree);
+extern linkage_kind decl_linkage (tree);
+extern duration_kind decl_storage_duration (tree);
+extern tree cp_walk_subtrees (tree*, int*, walk_tree_fn,
+ void*, struct pointer_set_t*);
+#define cp_walk_tree(tp,func,data,pset) \
+ walk_tree_1 (tp, func, data, pset, cp_walk_subtrees)
+#define cp_walk_tree_without_duplicates(tp,func,data) \
+ walk_tree_without_duplicates_1 (tp, func, data, cp_walk_subtrees)
+extern tree fold_if_not_in_template (tree);
+extern tree rvalue (tree);
+extern tree convert_bitfield_to_declared_type (tree);
+extern tree cp_save_expr (tree);
+extern bool cast_valid_in_integral_constant_expression_p (tree);
+extern bool cxx_type_hash_eq (const_tree, const_tree);
+
+extern void cxx_print_statistics (void);
+extern bool maybe_warn_zero_as_null_pointer_constant (tree, location_t);
+
+/* in ptree.c */
+extern void cxx_print_xnode (FILE *, tree, int);
+extern void cxx_print_decl (FILE *, tree, int);
+extern void cxx_print_type (FILE *, tree, int);
+extern void cxx_print_identifier (FILE *, tree, int);
+extern void cxx_print_error_function (diagnostic_context *,
+ const char *,
+ struct diagnostic_info *);
+
+/* in typeck.c */
+extern bool cxx_mark_addressable (tree);
+extern int string_conv_p (const_tree, const_tree, int);
+extern tree cp_truthvalue_conversion (tree);
+extern tree condition_conversion (tree);
+extern tree require_complete_type (tree);
+extern tree require_complete_type_sfinae (tree, tsubst_flags_t);
+extern tree complete_type (tree);
+extern tree complete_type_or_else (tree, tree);
+extern tree complete_type_or_maybe_complain (tree, tree, tsubst_flags_t);
+extern int type_unknown_p (const_tree);
+enum { ce_derived, ce_normal, ce_exact };
+extern bool comp_except_specs (const_tree, const_tree, int);
+extern bool comptypes (tree, tree, int);
+extern bool same_type_ignoring_top_level_qualifiers_p (tree, tree);
+extern bool compparms (const_tree, const_tree);
+extern int comp_cv_qualification (const_tree, const_tree);
+extern int comp_cv_qual_signature (tree, tree);
+extern tree cxx_sizeof_or_alignof_expr (tree, enum tree_code, bool);
+extern tree cxx_sizeof_or_alignof_type (tree, enum tree_code, bool);
+extern tree cxx_alignas_expr (tree);
+extern tree cxx_sizeof_nowarn (tree);
+extern tree is_bitfield_expr_with_lowered_type (const_tree);
+extern tree unlowered_expr_type (const_tree);
+extern tree decay_conversion (tree, tsubst_flags_t);
+extern tree build_class_member_access_expr (tree, tree, tree, bool,
+ tsubst_flags_t);
+extern tree finish_class_member_access_expr (tree, tree, bool,
+ tsubst_flags_t);
+extern tree build_x_indirect_ref (location_t, tree,
+ ref_operator, tsubst_flags_t);
+extern tree cp_build_indirect_ref (tree, ref_operator,
+ tsubst_flags_t);
+extern tree build_array_ref (location_t, tree, tree);
+extern tree cp_build_array_ref (location_t, tree, tree,
+ tsubst_flags_t);
+extern tree get_member_function_from_ptrfunc (tree *, tree, tsubst_flags_t);
+extern tree cp_build_function_call (tree, tree, tsubst_flags_t);
+extern tree cp_build_function_call_nary (tree, tsubst_flags_t, ...)
+ ATTRIBUTE_SENTINEL;
+extern tree cp_build_function_call_vec (tree, vec<tree, va_gc> **,
+ tsubst_flags_t);
+extern tree build_x_binary_op (location_t,
+ enum tree_code, tree,
+ enum tree_code, tree,
+ enum tree_code, tree *,
+ tsubst_flags_t);
+extern tree build_x_array_ref (location_t, tree, tree,
+ tsubst_flags_t);
+extern tree build_x_unary_op (location_t,
+ enum tree_code, tree,
+ tsubst_flags_t);
+extern tree cp_build_addr_expr (tree, tsubst_flags_t);
+extern tree cp_build_addr_expr_strict (tree, tsubst_flags_t);
+extern tree cp_build_unary_op (enum tree_code, tree, int,
+ tsubst_flags_t);
+extern tree unary_complex_lvalue (enum tree_code, tree);
+extern tree build_x_conditional_expr (location_t, tree, tree, tree,
+ tsubst_flags_t);
+extern tree build_x_compound_expr_from_list (tree, expr_list_kind,
+ tsubst_flags_t);
+extern tree build_x_compound_expr_from_vec (vec<tree, va_gc> *,
+ const char *, tsubst_flags_t);
+extern tree build_x_compound_expr (location_t, tree, tree,
+ tsubst_flags_t);
+extern tree build_compound_expr (location_t, tree, tree);
+extern tree cp_build_compound_expr (tree, tree, tsubst_flags_t);
+extern tree build_static_cast (tree, tree, tsubst_flags_t);
+extern tree build_reinterpret_cast (tree, tree, tsubst_flags_t);
+extern tree build_const_cast (tree, tree, tsubst_flags_t);
+extern tree build_c_cast (location_t, tree, tree);
+extern tree cp_build_c_cast (tree, tree, tsubst_flags_t);
+extern tree build_x_modify_expr (location_t, tree,
+ enum tree_code, tree,
+ tsubst_flags_t);
+extern tree cp_build_modify_expr (tree, enum tree_code, tree,
+ tsubst_flags_t);
+extern tree convert_for_initialization (tree, tree, tree, int,
+ impl_conv_rhs, tree, int,
+ tsubst_flags_t);
+extern int comp_ptr_ttypes (tree, tree);
+extern bool comp_ptr_ttypes_const (tree, tree);
+extern bool error_type_p (const_tree);
+extern bool ptr_reasonably_similar (const_tree, const_tree);
+extern tree build_ptrmemfunc (tree, tree, int, bool,
+ tsubst_flags_t);
+extern int cp_type_quals (const_tree);
+extern int type_memfn_quals (const_tree);
+extern cp_ref_qualifier type_memfn_rqual (const_tree);
+extern tree apply_memfn_quals (tree, cp_cv_quals, cp_ref_qualifier);
+extern bool cp_has_mutable_p (const_tree);
+extern bool at_least_as_qualified_p (const_tree, const_tree);
+extern void cp_apply_type_quals_to_decl (int, tree);
+extern tree build_ptrmemfunc1 (tree, tree, tree);
+extern void expand_ptrmemfunc_cst (tree, tree *, tree *);
+extern tree type_after_usual_arithmetic_conversions (tree, tree);
+extern tree common_pointer_type (tree, tree);
+extern tree composite_pointer_type (tree, tree, tree, tree,
+ composite_pointer_operation,
+ tsubst_flags_t);
+extern tree merge_types (tree, tree);
+extern tree strip_array_domain (tree);
+extern tree check_return_expr (tree, bool *);
+extern tree cp_build_binary_op (location_t,
+ enum tree_code, tree, tree,
+ tsubst_flags_t);
+extern tree build_x_vec_perm_expr (location_t,
+ tree, tree, tree,
+ tsubst_flags_t);
+#define cxx_sizeof(T) cxx_sizeof_or_alignof_type (T, SIZEOF_EXPR, true)
+extern tree build_simple_component_ref (tree, tree);
+extern tree build_ptrmemfunc_access_expr (tree, tree);
+extern tree build_address (tree);
+extern tree build_typed_address (tree, tree);
+extern tree build_nop (tree, tree);
+extern tree non_reference (tree);
+extern tree lookup_anon_field (tree, tree);
+extern bool invalid_nonstatic_memfn_p (tree, tsubst_flags_t);
+extern tree convert_member_func_to_ptr (tree, tree, tsubst_flags_t);
+extern tree convert_ptrmem (tree, tree, bool, bool,
+ tsubst_flags_t);
+extern int lvalue_or_else (tree, enum lvalue_use,
+ tsubst_flags_t);
+extern void check_template_keyword (tree);
+extern bool check_raw_literal_operator (const_tree decl);
+extern bool check_literal_operator_args (const_tree, bool *, bool *);
+extern void maybe_warn_about_useless_cast (tree, tree, tsubst_flags_t);
+extern tree cp_perform_integral_promotions (tree, tsubst_flags_t);
+
+/* in typeck2.c */
+extern void require_complete_eh_spec_types (tree, tree);
+extern void cxx_incomplete_type_diagnostic (const_tree, const_tree, diagnostic_t);
+#undef cxx_incomplete_type_error
+extern void cxx_incomplete_type_error (const_tree, const_tree);
+#define cxx_incomplete_type_error(V,T) \
+ (cxx_incomplete_type_diagnostic ((V), (T), DK_ERROR))
+extern tree error_not_base_type (tree, tree);
+extern tree binfo_or_else (tree, tree);
+extern void cxx_readonly_error (tree, enum lvalue_use);
+extern void complete_type_check_abstract (tree);
+extern int abstract_virtuals_error (tree, tree);
+extern int abstract_virtuals_error (abstract_class_use, tree);
+extern int abstract_virtuals_error_sfinae (tree, tree, tsubst_flags_t);
+extern int abstract_virtuals_error_sfinae (abstract_class_use, tree, tsubst_flags_t);
+
+extern tree store_init_value (tree, tree, vec<tree, va_gc>**, int);
+extern void check_narrowing (tree, tree);
+extern tree digest_init (tree, tree, tsubst_flags_t);
+extern tree digest_init_flags (tree, tree, int);
+extern tree build_scoped_ref (tree, tree, tree *);
+extern tree build_x_arrow (location_t, tree,
+ tsubst_flags_t);
+extern tree build_m_component_ref (tree, tree, tsubst_flags_t);
+extern tree build_functional_cast (tree, tree, tsubst_flags_t);
+extern tree add_exception_specifier (tree, tree, int);
+extern tree merge_exception_specifiers (tree, tree, tree);
+
+/* in mangle.c */
+extern void init_mangle (void);
+extern void mangle_decl (tree);
+extern const char *mangle_type_string (tree);
+extern tree mangle_typeinfo_for_type (tree);
+extern tree mangle_typeinfo_string_for_type (tree);
+extern tree mangle_vtbl_for_type (tree);
+extern tree mangle_vtt_for_type (tree);
+extern tree mangle_ctor_vtbl_for_type (tree, tree);
+extern tree mangle_thunk (tree, int, tree, tree);
+extern tree mangle_conv_op_name_for_type (tree);
+extern tree mangle_guard_variable (tree);
+extern tree mangle_tls_init_fn (tree);
+extern tree mangle_tls_wrapper_fn (tree);
+extern bool decl_tls_wrapper_p (tree);
+extern tree mangle_ref_init_variable (tree);
+extern char * get_mangled_vtable_map_var_name (tree);
+
+/* in dump.c */
+extern bool cp_dump_tree (void *, tree);
+
+/* In cp/cp-objcp-common.c. */
+
+extern alias_set_type cxx_get_alias_set (tree);
+extern bool cxx_warn_unused_global_decl (const_tree);
+extern size_t cp_tree_size (enum tree_code);
+extern bool cp_var_mod_type_p (tree, tree);
+extern void cxx_initialize_diagnostics (diagnostic_context *);
+extern int cxx_types_compatible_p (tree, tree);
+extern void init_shadowed_var_for_decl (void);
+extern bool cxx_block_may_fallthru (const_tree);
+
+/* in cp-gimplify.c */
+extern int cp_gimplify_expr (tree *, gimple_seq *,
+ gimple_seq *);
+extern void cp_genericize (tree);
+extern bool cxx_omp_const_qual_no_mutable (tree);
+extern enum omp_clause_default_kind cxx_omp_predetermined_sharing (tree);
+extern tree cxx_omp_clause_default_ctor (tree, tree, tree);
+extern tree cxx_omp_clause_copy_ctor (tree, tree, tree);
+extern tree cxx_omp_clause_assign_op (tree, tree, tree);
+extern tree cxx_omp_clause_dtor (tree, tree);
+extern void cxx_omp_finish_clause (tree);
+extern bool cxx_omp_privatize_by_reference (const_tree);
+
+/* in name-lookup.c */
+extern void suggest_alternatives_for (location_t, tree);
+extern tree strip_using_decl (tree);
+
+/* in vtable-class-hierarchy.c */
+extern void vtv_compute_class_hierarchy_transitive_closure (void);
+extern void vtv_generate_init_routine (void);
+extern void vtv_save_class_info (tree);
+extern void vtv_recover_class_info (void);
+extern void vtv_build_vtable_verify_fndecl (void);
+
+/* In cp-cilkplus.c. */
+extern bool cpp_validate_cilk_plus_loop (tree);
+
+/* In cp/cp-array-notations.c */
+extern tree expand_array_notation_exprs (tree);
+bool cilkplus_an_triplet_types_ok_p (location_t, tree, tree, tree,
+ tree);
+/* In c-family/cilk.c */
+extern bool cilk_valid_spawn (tree);
+
+/* -- end of C++ */
+
+#endif /* ! GCC_CP_TREE_H */