/* Definitions for C++ parsing and type checking.
Copyright (C) 1987, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
+ 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
Free Software Foundation, Inc.
Contributed by Michael Tiemann (tiemann@cygnus.com)
#include "hashtab.h"
#include "splay-tree.h"
#include "vec.h"
-#include "varray.h"
#include "c-common.h"
#include "name-lookup.h"
BASELINK_QUALIFIED_P (in BASELINK)
TARGET_EXPR_IMPLICIT_P (in TARGET_EXPR)
TEMPLATE_PARM_PARAMETER_PACK (in TEMPLATE_PARM_INDEX)
- TYPE_REF_IS_RVALUE (in REFERENCE_TYPE)
ATTR_IS_DEPENDENT (in the TREE_LIST for an attribute)
CONSTRUCTOR_IS_DIRECT_INIT (in CONSTRUCTOR)
LAMBDA_EXPR_CAPTURES_THIS_P (in LAMBDA_EXPR)
3: TYPE_FOR_JAVA.
4: TYPE_HAS_NONTRIVIAL_DESTRUCTOR
5: CLASS_TYPE_P (in RECORD_TYPE and UNION_TYPE)
- SCOPED_ENUM_P (in ENUMERAL_TYPE)
6: TYPE_DEPENDENT_P_VALID
Usage of DECL_LANG_FLAG_?:
CPTI_KEYED_CLASSES,
+ CPTI_NULLPTR,
+ CPTI_NULLPTR_TYPE,
+
CPTI_MAX
};
#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. */
expression for `*this'. */
#define current_class_ptr \
- (cfun ? cp_function_chain->x_current_class_ptr : NULL_TREE)
+ (cfun && cp_function_chain \
+ ? cp_function_chain->x_current_class_ptr : NULL_TREE)
#define current_class_ref \
(cfun ? cp_function_chain->x_current_class_ref : NULL_TREE)
(TYPE_RAISES_EXCEPTIONS (NODE) \
&& TREE_VALUE (TYPE_RAISES_EXCEPTIONS (NODE)) == NULL_TREE)
+/* 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) \
+ (flag_nothrow_opt && TYPE_NOTHROW_P(NODE))
+
/* The binding level associated with the namespace. */
#define NAMESPACE_LEVEL(NODE) \
(LANG_DECL_NS_CHECK (NODE)->level)
unsigned threadprivate_or_deleted_p : 1; /* var or fn */
unsigned anticipated_p : 1; /* fn or type */
unsigned friend_attr : 1; /* fn or type */
- unsigned template_conv_p : 1; /* template only? */
+ unsigned template_conv_p : 1; /* var or template */
unsigned odr_used : 1; /* var or fn */
unsigned u2sel : 1;
/* 1 spare bit */
#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))
#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 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. */
#define TI_TYPEDEFS_NEEDING_ACCESS_CHECKING(NODE) \
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. */
+ 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. */
|| 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) == LANG_TYPE \
+ && TYPE_MAIN_VARIANT (TYPE) == nullptr_type_node)
+
/* [basic.types]
- Arithmetic types, enumeration types, pointer types, and
- pointer-to-member types, are collectively called scalar 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) \
|| TREE_CODE (TYPE) == ENUMERAL_TYPE \
|| ARITHMETIC_TYPE_P (TYPE) \
|| TYPE_PTR_P (TYPE) \
- || TYPE_PTRMEMFUNC_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
- The underlying type of the enum is well-defined. */
#define SCOPED_ENUM_P(TYPE) \
- (TREE_CODE (TYPE) == ENUMERAL_TYPE && TYPE_LANG_FLAG_5 (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 && !TYPE_LANG_FLAG_5 (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) \
- (TYPE_LANG_FLAG_5 (ENUMERAL_TYPE_CHECK (TYPE)) = (VAL))
+ (ENUM_IS_SCOPED (TYPE) = (VAL))
/* Returns the underlying type of the given enumeration type. The
underlying type is determined in different ways, depending on the
#define TYPE_REF_OBJ_P(NODE) \
(TREE_CODE (NODE) == REFERENCE_TYPE && TYPE_OBJ_P (TREE_TYPE (NODE)))
-/* True if reference type NODE is an rvalue reference */
-#define TYPE_REF_IS_RVALUE(NODE) \
- TREE_LANG_FLAG_0 (REFERENCE_TYPE_CHECK (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) \
#define ANON_UNION_TYPE_P(NODE) \
(TREE_CODE (NODE) == UNION_TYPE && ANON_AGGR_TYPE_P (NODE))
-#define UNKNOWN_TYPE LANG_TYPE
-
/* Define fields and accessors for nodes representing declared names. */
#define TYPE_WAS_ANONYMOUS(NODE) (LANG_TYPE_CLASS_CHECK (NODE)->was_anonymous)
have already generated a temporary, such as reference
initialization and the catch parameter. */
#define DIRECT_BIND (1 << 4)
-/* User-defined conversions are not permitted. (Built-in conversions
- are permitted.) */
+/* We're performing a user-defined conversion, so more user-defined
+ conversions are not permitted (only built-in conversions). */
#define LOOKUP_NO_CONVERSION (1 << 5)
/* The user has explicitly called a destructor. (Therefore, we do
not need to check that the object is non-NULL before calling the
#define LOOKUP_NO_COPY_CTOR_CONVERSION (LOOKUP_NO_NARROWING << 1)
/* This is the first parameter of a copy constructor. */
#define LOOKUP_COPY_PARM (LOOKUP_NO_COPY_CTOR_CONVERSION << 1)
+/* We only want to consider list constructors. */
+#define LOOKUP_LIST_ONLY (LOOKUP_COPY_PARM << 1)
#define LOOKUP_NAMESPACES_ONLY(F) \
(((F) & LOOKUP_PREFER_NAMESPACES) && !((F) & LOOKUP_PREFER_TYPES))
#define WANT_ENUM 4 /* enumerated types */
#define WANT_POINTER 8 /* pointer types */
#define WANT_NULL 16 /* null pointer constant */
-#define WANT_VECTOR 32 /* vector types */
-#define WANT_ARITH (WANT_INT | WANT_FLOAT | WANT_VECTOR)
+#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. */
(TEMPLATE_PARM_DECL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
#define TEMPLATE_TYPE_PARAMETER_PACK(NODE) \
(TEMPLATE_PARM_PARAMETER_PACK (TEMPLATE_TYPE_PARM_INDEX (NODE)))
+/* The list of template parms that a given template parameter of type
+ TEMPLATE_TYPE_PARM belongs to.*/
+#define TEMPLATE_TYPE_PARM_SIBLING_PARMS(NODE) \
+ (TREE_CHECK ((NODE), TEMPLATE_TYPE_PARM))->type.maxval
/* These constants can used as bit flags in the process of tree formatting.
extern tree build_vfield_ref (tree, tree);
extern tree build_base_path (enum tree_code, tree,
tree, int);
-extern tree convert_to_base (tree, tree, bool, bool);
+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 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 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 tree check_for_out_of_scope_variable (tree);
extern void print_other_binding_stack (struct 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 initialize_artificial_var (tree, tree);
extern tree check_var_type (tree, tree);
extern tree reshape_init (tree, tree);
+extern tree next_initializable_field (tree);
extern bool defer_mark_used_calls;
extern GTY(()) VEC(tree, gc) *deferred_mark_used_calls;
/* in decl2.c */
extern bool check_java_method (tree);
extern tree build_memfn_type (tree, tree, cp_cv_quals);
+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_fn_p (tree);
+extern bool vague_linkage_p (tree);
extern void grokclassfn (tree, tree,
enum overload_flags);
extern tree grok_array_decl (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 initialize_vtbl_ptrs (tree);
extern tree build_java_class_ref (tree);
extern tree integral_constant_value (tree);
+extern void diagnose_uninitialized_cst_or_ref_member (tree, bool);
/* in lex.c */
extern void cxx_dup_lang_specific_decl (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, int, int, int);
extern tree push_template_decl (tree);
extern tree push_template_decl_real (tree, bool);
extern bool reregister_specialization (tree, tree, tree);
extern tree fold_non_dependent_expr (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 bool parameter_of_template_p (tree, tree);
extern void init_template_processing (void);
+extern void print_template_statistics (void);
bool template_template_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 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 lookup_conversions (tree, bool);
extern tree binfo_from_vbase (tree);
extern tree binfo_for_vbase (tree, tree);
extern tree look_for_overrides_here (tree, tree);
extern void apply_lambda_return_type (tree, tree);
extern tree add_capture (tree, tree, tree, bool, bool);
extern tree add_default_capture (tree, tree, tree);
+extern void register_capture_members (tree);
extern tree lambda_expr_this_capture (tree);
+extern tree nonlambda_method_basetype (void);
extern void maybe_add_lambda_conv_op (tree);
/* in tree.c */
extern tree hash_tree_chain (tree, tree);
extern tree build_qualified_name (tree, tree, tree, bool);
extern int is_overloaded_fn (tree);
+extern tree get_fns (tree);
extern tree get_first_fn (tree);
extern tree ovl_cons (tree, tree);
extern tree build_overload (tree, tree);
tsubst_flags_t);
extern tree finish_class_member_access_expr (tree, tree, bool,
tsubst_flags_t);
-extern tree build_x_indirect_ref (tree, const char *,
+extern tree build_x_indirect_ref (tree, ref_operator,
tsubst_flags_t);
-extern tree cp_build_indirect_ref (tree, const char *,
+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);
extern tree cp_build_function_call (tree, tree, tsubst_flags_t);
extern tree cp_build_function_call_vec (tree, VEC(tree,gc) **,
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 int ptr_reasonably_similar (const_tree, const_tree);
extern tree build_ptrmemfunc (tree, tree, int, bool);
extern int cp_type_quals (const_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,
extern alias_set_type cxx_get_alias_set (tree);
extern bool cxx_warn_unused_global_decl (const_tree);
-extern tree cp_expr_size (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 (struct diagnostic_context *);
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