/* Handle initialization things in C++.
Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+ 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 2, or (at your option)
+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,
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 COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
/* High-level class interface. */
static bool begin_init_stmts (tree *, tree *);
static tree finish_init_stmts (bool, tree, tree);
static void construct_virtual_base (tree, tree);
-static void expand_aggr_init_1 (tree, tree, tree, tree, int);
-static void expand_default_init (tree, tree, tree, tree, int);
+static void expand_aggr_init_1 (tree, tree, tree, tree, int, tsubst_flags_t);
+static void expand_default_init (tree, tree, tree, tree, int, tsubst_flags_t);
static tree build_vec_delete_1 (tree, tree, tree, special_function_kind, int);
static void perform_member_init (tree, tree);
static tree build_builtin_delete_call (tree);
static void expand_cleanup_for_base (tree, tree);
static tree get_temp_regvar (tree, tree);
static tree dfs_initialize_vtbl_ptrs (tree, void *);
-static tree build_default_init (tree, tree);
-static tree build_new_1 (tree);
static tree build_dtor_call (tree, special_function_kind, int);
static tree build_field_list (tree, tree, int *);
static tree build_vtbl_address (tree);
+static void diagnose_uninitialized_cst_or_ref_member_1 (tree, tree, bool);
/* We are about to generate some complex initialization code.
Conceptually, it is all a single expression. However, we may want
begin_init_stmts (tree *stmt_expr_p, tree *compound_stmt_p)
{
bool is_global = !building_stmt_tree ();
-
+
*stmt_expr_p = begin_stmt_expr ();
*compound_stmt_p = begin_compound_stmt (BCS_NO_SCOPE);
static tree
finish_init_stmts (bool is_global, tree stmt_expr, tree compound_stmt)
-{
+{
finish_compound_stmt (compound_stmt);
-
+
stmt_expr = finish_stmt_expr (stmt_expr, true);
gcc_assert (!building_stmt_tree () == is_global);
-
+
return stmt_expr;
}
static tree
dfs_initialize_vtbl_ptrs (tree binfo, void *data)
{
- if ((!BINFO_PRIMARY_P (binfo) || BINFO_VIRTUAL_P (binfo))
- && TYPE_CONTAINS_VPTR_P (BINFO_TYPE (binfo)))
+ if (!TYPE_CONTAINS_VPTR_P (BINFO_TYPE (binfo)))
+ return dfs_skip_bases;
+
+ if (!BINFO_PRIMARY_P (binfo) || BINFO_VIRTUAL_P (binfo))
{
tree base_ptr = TREE_VALUE ((tree) data);
expand_virtual_init (binfo, base_ptr);
}
- BINFO_MARKED (binfo) = 1;
-
return NULL_TREE;
}
class. We do these in pre-order because we can't find the virtual
bases for a class until we've initialized the vtbl for that
class. */
- dfs_walk_real (TYPE_BINFO (type), dfs_initialize_vtbl_ptrs,
- NULL, unmarkedp, list);
- dfs_walk (TYPE_BINFO (type), dfs_unmark, markedp, type);
+ dfs_walk_once (TYPE_BINFO (type), dfs_initialize_vtbl_ptrs, NULL, list);
}
/* Return an expression for the zero-initialization of an object with
type T. This expression will either be a constant (in the case
that T is a scalar), or a CONSTRUCTOR (in the case that T is an
- aggregate). In either case, the value can be used as DECL_INITIAL
- for a decl of the indicated TYPE; it is a valid static initializer.
- If NELTS is non-NULL, and TYPE is an ARRAY_TYPE, NELTS is the
- number of elements in the array. If STATIC_STORAGE_P is TRUE,
- initializers are only generated for entities for which
+ aggregate), or NULL (in the case that T does not require
+ initialization). In either case, the value can be used as
+ DECL_INITIAL for a decl of the indicated TYPE; it is a valid static
+ initializer. If NELTS is non-NULL, and TYPE is an ARRAY_TYPE, NELTS
+ is the number of elements in the array. If STATIC_STORAGE_P is
+ TRUE, initializers are only generated for entities for which
zero-initialization does not simply mean filling the storage with
zero bytes. */
/* [dcl.init]
- To zero-initialization storage for an object of type T means:
+ To zero-initialize an object of type T means:
-- if T is a scalar type, the storage is set to the value of zero
- converted to T.
+ converted to T.
-- if T is a non-union class type, the storage for each nonstatic
- data member and each base-class subobject is zero-initialized.
+ data member and each base-class subobject is zero-initialized.
-- if T is a union type, the storage for its first data member is
- zero-initialized.
+ zero-initialized.
-- if T is an array type, the storage for each element is
- zero-initialized.
+ zero-initialized.
-- if T is a reference type, no initialization is performed. */
else if (CLASS_TYPE_P (type))
{
tree field;
- tree inits;
+ VEC(constructor_elt,gc) *v = NULL;
- /* Build a constructor to contain the initializations. */
- init = build_constructor (type, NULL_TREE);
/* Iterate over the fields, building initializations. */
- inits = NULL_TREE;
for (field = TYPE_FIELDS (type); field; field = TREE_CHAIN (field))
{
if (TREE_CODE (field) != FIELD_DECL)
corresponding to base classes as well. Thus, iterating
over TYPE_FIELDs will result in correct initialization of
all of the subobjects. */
- if (static_storage_p && !zero_init_p (TREE_TYPE (field)))
- inits = tree_cons (field,
- build_zero_init (TREE_TYPE (field),
- /*nelts=*/NULL_TREE,
- static_storage_p),
- inits);
+ if (!static_storage_p || !zero_init_p (TREE_TYPE (field)))
+ {
+ tree value = build_zero_init (TREE_TYPE (field),
+ /*nelts=*/NULL_TREE,
+ static_storage_p);
+ if (value)
+ CONSTRUCTOR_APPEND_ELT(v, field, value);
+ }
/* For unions, only the first field is initialized. */
if (TREE_CODE (type) == UNION_TYPE)
break;
}
- CONSTRUCTOR_ELTS (init) = nreverse (inits);
+
+ /* Build a constructor to contain the initializations. */
+ init = build_constructor (type, v);
}
else if (TREE_CODE (type) == ARRAY_TYPE)
{
- tree index;
tree max_index;
- tree inits;
+ VEC(constructor_elt,gc) *v = NULL;
- /* Build a constructor to contain the initializations. */
- init = build_constructor (type, NULL_TREE);
/* Iterate over the array elements, building initializations. */
- inits = NULL_TREE;
- max_index = nelts ? nelts : array_type_nelts (type);
+ if (nelts)
+ max_index = fold_build2_loc (input_location,
+ MINUS_EXPR, TREE_TYPE (nelts),
+ nelts, integer_one_node);
+ else
+ max_index = array_type_nelts (type);
+
+ /* If we have an error_mark here, we should just return error mark
+ as we don't know the size of the array yet. */
+ if (max_index == error_mark_node)
+ return error_mark_node;
gcc_assert (TREE_CODE (max_index) == INTEGER_CST);
/* A zero-sized array, which is accepted as an extension, will
have an upper bound of -1. */
if (!tree_int_cst_equal (max_index, integer_minus_one_node))
- for (index = size_zero_node;
- !tree_int_cst_lt (max_index, index);
- index = size_binop (PLUS_EXPR, index, size_one_node))
- inits = tree_cons (index,
- build_zero_init (TREE_TYPE (type),
- /*nelts=*/NULL_TREE,
- static_storage_p),
- inits);
- CONSTRUCTOR_ELTS (init) = nreverse (inits);
+ {
+ constructor_elt *ce;
+
+ v = VEC_alloc (constructor_elt, gc, 1);
+ ce = VEC_quick_push (constructor_elt, v, NULL);
+
+ /* If this is a one element array, we just use a regular init. */
+ if (tree_int_cst_equal (size_zero_node, max_index))
+ ce->index = size_zero_node;
+ else
+ ce->index = build2 (RANGE_EXPR, sizetype, size_zero_node,
+ max_index);
+
+ ce->value = build_zero_init (TREE_TYPE (type),
+ /*nelts=*/NULL_TREE,
+ static_storage_p);
+ }
+
+ /* Build a constructor to contain the initializations. */
+ init = build_constructor (type, v);
}
+ else if (TREE_CODE (type) == VECTOR_TYPE)
+ init = fold_convert (type, integer_zero_node);
else
gcc_assert (TREE_CODE (type) == REFERENCE_TYPE);
/* In all cases, the initializer is a constant. */
if (init)
- {
- TREE_CONSTANT (init) = 1;
- TREE_INVARIANT (init) = 1;
- }
+ TREE_CONSTANT (init) = 1;
return init;
}
-/* Build an expression for the default-initialization of an object of
- the indicated TYPE. If NELTS is non-NULL, and TYPE is an
- ARRAY_TYPE, NELTS is the number of elements in the array. If
- initialization of TYPE requires calling constructors, this function
- returns NULL_TREE; the caller is responsible for arranging for the
- constructors to be called. */
+/* Return a suitable initializer for value-initializing an object of type
+ TYPE, as described in [dcl.init]. */
-static tree
-build_default_init (tree type, tree nelts)
+tree
+build_value_init (tree type)
{
- /* [dcl.init]:
+ /* [dcl.init]
- To default-initialize an object of type T means:
+ To value-initialize an object of type T means:
- --if T is a non-POD class type (clause _class_), the default construc-
- tor for T is called (and the initialization is ill-formed if T has
- no accessible default constructor);
+ - if T is a class type (clause 9) with a user-provided constructor
+ (12.1), then the default constructor for T is called (and the
+ initialization is ill-formed if T has no accessible default
+ constructor);
- --if T is an array type, each element is default-initialized;
+ - if T is a non-union class type without a user-provided constructor,
+ then every non-static data member and base-class component of T is
+ value-initialized;92)
- --otherwise, the storage for the object is zero-initialized.
+ - if T is an array type, then each element is value-initialized;
- A program that calls for default-initialization of an entity of refer-
- ence type is ill-formed. */
+ - otherwise, the object is zero-initialized.
- /* If TYPE_NEEDS_CONSTRUCTING is true, the caller is responsible for
- performing the initialization. This is confusing in that some
- non-PODs do not have TYPE_NEEDS_CONSTRUCTING set. (For example,
- a class with a pointer-to-data member as a non-static data member
- does not have TYPE_NEEDS_CONSTRUCTING set.) Therefore, we end up
- passing non-PODs to build_zero_init below, which is contrary to
- the semantics quoted above from [dcl.init].
+ A program that calls for default-initialization or
+ value-initialization of an entity of reference type is ill-formed.
- It happens, however, that the behavior of the constructor the
- standard says we should have generated would be precisely the
- same as that obtained by calling build_zero_init below, so things
- work out OK. */
- if (TYPE_NEEDS_CONSTRUCTING (type)
- || (nelts && TREE_CODE (nelts) != INTEGER_CST))
- return NULL_TREE;
-
- /* At this point, TYPE is either a POD class type, an array of POD
- classes, or something even more innocuous. */
- return build_zero_init (type, nelts, /*static_storage_p=*/false);
+ 92) Value-initialization for such a class object may be implemented by
+ zero-initializing the object and then calling the default
+ constructor. */
+
+ if (CLASS_TYPE_P (type))
+ {
+ if (type_has_user_provided_constructor (type))
+ return build_aggr_init_expr
+ (type,
+ build_special_member_call (NULL_TREE, complete_ctor_identifier,
+ NULL, type, LOOKUP_NORMAL,
+ tf_warning_or_error));
+ else if (TREE_CODE (type) != UNION_TYPE && TYPE_NEEDS_CONSTRUCTING (type))
+ {
+ /* This is a class that needs constructing, but doesn't have
+ a user-provided constructor. So we need to zero-initialize
+ the object and then call the implicitly defined ctor.
+ This will be handled in simplify_aggr_init_expr. */
+ tree ctor = build_special_member_call
+ (NULL_TREE, complete_ctor_identifier,
+ NULL, type, LOOKUP_NORMAL, tf_warning_or_error);
+
+ ctor = build_aggr_init_expr (type, ctor);
+ AGGR_INIT_ZERO_FIRST (ctor) = 1;
+ return ctor;
+ }
+ }
+ return build_value_init_noctor (type);
+}
+
+/* Like build_value_init, but don't call the constructor for TYPE. Used
+ for base initializers. */
+
+tree
+build_value_init_noctor (tree type)
+{
+ if (CLASS_TYPE_P (type))
+ {
+ gcc_assert (!TYPE_NEEDS_CONSTRUCTING (type));
+
+ if (TREE_CODE (type) != UNION_TYPE)
+ {
+ tree field;
+ VEC(constructor_elt,gc) *v = NULL;
+
+ /* Iterate over the fields, building initializations. */
+ for (field = TYPE_FIELDS (type); field; field = TREE_CHAIN (field))
+ {
+ tree ftype, value;
+
+ if (TREE_CODE (field) != FIELD_DECL)
+ continue;
+
+ ftype = TREE_TYPE (field);
+
+ if (TREE_CODE (ftype) == REFERENCE_TYPE)
+ error ("value-initialization of reference");
+
+ /* We could skip vfields and fields of types with
+ user-defined constructors, but I think that won't improve
+ performance at all; it should be simpler in general just
+ to zero out the entire object than try to only zero the
+ bits that actually need it. */
+
+ /* Note that for class types there will be FIELD_DECLs
+ corresponding to base classes as well. Thus, iterating
+ over TYPE_FIELDs will result in correct initialization of
+ all of the subobjects. */
+ value = build_value_init (ftype);
+
+ if (value)
+ CONSTRUCTOR_APPEND_ELT(v, field, value);
+ }
+
+ /* Build a constructor to contain the zero- initializations. */
+ return build_constructor (type, v);
+ }
+ }
+ else if (TREE_CODE (type) == ARRAY_TYPE)
+ {
+ VEC(constructor_elt,gc) *v = NULL;
+
+ /* Iterate over the array elements, building initializations. */
+ tree max_index = array_type_nelts (type);
+
+ /* If we have an error_mark here, we should just return error mark
+ as we don't know the size of the array yet. */
+ if (max_index == error_mark_node)
+ return error_mark_node;
+ gcc_assert (TREE_CODE (max_index) == INTEGER_CST);
+
+ /* A zero-sized array, which is accepted as an extension, will
+ have an upper bound of -1. */
+ if (!tree_int_cst_equal (max_index, integer_minus_one_node))
+ {
+ constructor_elt *ce;
+
+ v = VEC_alloc (constructor_elt, gc, 1);
+ ce = VEC_quick_push (constructor_elt, v, NULL);
+
+ /* If this is a one element array, we just use a regular init. */
+ if (tree_int_cst_equal (size_zero_node, max_index))
+ ce->index = size_zero_node;
+ else
+ ce->index = build2 (RANGE_EXPR, sizetype, size_zero_node,
+ max_index);
+
+ ce->value = build_value_init (TREE_TYPE (type));
+
+ /* The gimplifier can't deal with a RANGE_EXPR of TARGET_EXPRs. */
+ gcc_assert (TREE_CODE (ce->value) != TARGET_EXPR
+ && TREE_CODE (ce->value) != AGGR_INIT_EXPR);
+ }
+
+ /* Build a constructor to contain the initializations. */
+ return build_constructor (type, v);
+ }
+
+ return build_zero_init (type, NULL_TREE, /*static_storage_p=*/false);
}
/* Initialize MEMBER, a FIELD_DECL, with INIT, a TREE_LIST of
{
tree decl;
tree type = TREE_TYPE (member);
- bool explicit;
-
- explicit = (init != NULL_TREE);
/* Effective C++ rule 12 requires that all data members be
initialized. */
- if (warn_ecpp && !explicit && TREE_CODE (type) != ARRAY_TYPE)
- warning ("%J%qD should be initialized in the member initialization "
- "list", current_function_decl, member);
-
- if (init == void_type_node)
- init = NULL_TREE;
+ if (warn_ecpp && init == NULL_TREE && TREE_CODE (type) != ARRAY_TYPE)
+ warning_at (DECL_SOURCE_LOCATION (current_function_decl), OPT_Weffc__,
+ "%qD should be initialized in the member initialization list",
+ member);
/* Get an lvalue for the data member. */
decl = build_class_member_access_expr (current_class_ref, member,
/*access_path=*/NULL_TREE,
- /*preserve_reference=*/true);
+ /*preserve_reference=*/true,
+ tf_warning_or_error);
if (decl == error_mark_node)
return;
+ if (init == void_type_node)
+ {
+ /* mem() means value-initialization. */
+ if (TREE_CODE (type) == ARRAY_TYPE)
+ {
+ init = build_vec_init (decl, NULL_TREE, NULL_TREE,
+ /*explicit_value_init_p=*/true,
+ /* from_array=*/0,
+ tf_warning_or_error);
+ finish_expr_stmt (init);
+ }
+ else
+ {
+ if (TREE_CODE (type) == REFERENCE_TYPE)
+ permerror (DECL_SOURCE_LOCATION (current_function_decl),
+ "value-initialization of %q#D, which has reference type",
+ member);
+ else
+ {
+ init = build2 (INIT_EXPR, type, decl, build_value_init (type));
+ finish_expr_stmt (init);
+ }
+ }
+ }
/* Deal with this here, as we will get confused if we try to call the
assignment op for an anonymous union. This can happen in a
synthesized copy constructor. */
- if (ANON_AGGR_TYPE_P (type))
+ else if (ANON_AGGR_TYPE_P (type))
{
if (init)
{
}
else if (TYPE_NEEDS_CONSTRUCTING (type))
{
- if (explicit
+ if (init != NULL_TREE
&& TREE_CODE (type) == ARRAY_TYPE
- && init != NULL_TREE
&& TREE_CHAIN (init) == NULL_TREE
&& TREE_CODE (TREE_TYPE (TREE_VALUE (init))) == ARRAY_TYPE)
{
/* Initialization of one array from another. */
finish_expr_stmt (build_vec_init (decl, NULL_TREE, TREE_VALUE (init),
- /* from_array=*/1));
+ /*explicit_value_init_p=*/false,
+ /* from_array=*/1,
+ tf_warning_or_error));
}
else
- finish_expr_stmt (build_aggr_init (decl, init, 0));
+ {
+ if (CP_TYPE_CONST_P (type)
+ && init == NULL_TREE
+ && !type_has_user_provided_default_constructor (type))
+ /* TYPE_NEEDS_CONSTRUCTING can be set just because we have a
+ vtable; still give this diagnostic. */
+ permerror (DECL_SOURCE_LOCATION (current_function_decl),
+ "uninitialized member %qD with %<const%> type %qT",
+ member, type);
+ finish_expr_stmt (build_aggr_init (decl, init, 0,
+ tf_warning_or_error));
+ }
}
else
{
if (init == NULL_TREE)
{
- if (explicit)
- {
- init = build_default_init (type, /*nelts=*/NULL_TREE);
- if (TREE_CODE (type) == REFERENCE_TYPE)
- warning ("%Jdefault-initialization of %q#D, "
- "which has reference type",
- current_function_decl, member);
- }
+ tree core_type;
/* member traversal: note it leaves init NULL */
- else if (TREE_CODE (type) == REFERENCE_TYPE)
- pedwarn ("%Juninitialized reference member %qD",
- current_function_decl, member);
+ if (TREE_CODE (type) == REFERENCE_TYPE)
+ permerror (DECL_SOURCE_LOCATION (current_function_decl),
+ "uninitialized reference member %qD",
+ member);
else if (CP_TYPE_CONST_P (type))
- pedwarn ("%Juninitialized member %qD with %<const%> type %qT",
- current_function_decl, member, type);
+ permerror (DECL_SOURCE_LOCATION (current_function_decl),
+ "uninitialized member %qD with %<const%> type %qT",
+ member, type);
+
+ core_type = strip_array_types (type);
+ if (CLASS_TYPE_P (core_type)
+ && (CLASSTYPE_READONLY_FIELDS_NEED_INIT (core_type)
+ || CLASSTYPE_REF_FIELDS_NEED_INIT (core_type)))
+ diagnose_uninitialized_cst_or_ref_member (core_type,
+ /*using_new=*/false);
}
else if (TREE_CODE (init) == TREE_LIST)
/* There was an explicit member initialization. Do some work
init = build_x_compound_expr_from_list (init, "member initializer");
if (init)
- finish_expr_stmt (build_modify_expr (decl, INIT_EXPR, init));
+ finish_expr_stmt (cp_build_modify_expr (decl, INIT_EXPR, init,
+ tf_warning_or_error));
}
if (TYPE_HAS_NONTRIVIAL_DESTRUCTOR (type))
expr = build_class_member_access_expr (current_class_ref, member,
/*access_path=*/NULL_TREE,
- /*preserve_reference=*/false);
+ /*preserve_reference=*/false,
+ tf_warning_or_error);
expr = build_delete (type, expr, sfk_complete_destructor,
LOOKUP_NONVIRTUAL|LOOKUP_DESTRUCTOR, 0);
/* Returns a TREE_LIST containing (as the TREE_PURPOSE of each node) all
the FIELD_DECLs on the TYPE_FIELDS list for T, in reverse order. */
-static tree
+static tree
build_field_list (tree t, tree list, int *uses_unions_p)
{
tree fields;
/* Skip CONST_DECLs for enumeration constants and so forth. */
if (TREE_CODE (fields) != FIELD_DECL || DECL_ARTIFICIAL (fields))
continue;
-
+
/* Keep track of whether or not any fields are unions. */
if (TREE_CODE (TREE_TYPE (fields)) == UNION_TYPE)
*uses_unions_p = 1;
initialize the entire aggregate. */
list = tree_cons (fields, NULL_TREE, list);
/* And now add the fields in the anonymous aggregate. */
- list = build_field_list (TREE_TYPE (fields), list,
+ list = build_field_list (TREE_TYPE (fields), list,
uses_unions_p);
}
/* Add this field. */
tree base, binfo, base_binfo;
tree sorted_inits;
tree next_subobject;
- VEC (tree) *vbases;
+ VEC(tree,gc) *vbases;
int i;
int uses_unions_p;
TREE_VALUE will be the constructor arguments, or NULL if no
explicit initialization was provided. */
sorted_inits = NULL_TREE;
-
+
/* Process the virtual bases. */
for (vbases = CLASSTYPE_VBASECLASSES (t), i = 0;
VEC_iterate (tree, vbases, i, base); i++)
sorted_inits = tree_cons (base, NULL_TREE, sorted_inits);
-
+
/* Process the direct bases. */
for (binfo = TYPE_BINFO (t), i = 0;
BINFO_BASE_ITERATE (binfo, i, base_binfo); ++i)
subobject = TREE_PURPOSE (init);
/* If the explicit initializers are in sorted order, then
- SUBOBJECT will be NEXT_SUBOBJECT, or something following
+ SUBOBJECT will be NEXT_SUBOBJECT, or something following
it. */
- for (subobject_init = next_subobject;
- subobject_init;
+ for (subobject_init = next_subobject;
+ subobject_init;
subobject_init = TREE_CHAIN (subobject_init))
if (TREE_PURPOSE (subobject_init) == subobject)
break;
/* Issue a warning if the explicit initializer order does not
match that which will actually occur.
- ??? Are all these on the correct lines? */
+ ??? Are all these on the correct lines? */
if (warn_reorder && !subobject_init)
{
if (TREE_CODE (TREE_PURPOSE (next_subobject)) == FIELD_DECL)
- cp_warning_at ("%qD will be initialized after",
- TREE_PURPOSE (next_subobject));
+ warning (OPT_Wreorder, "%q+D will be initialized after",
+ TREE_PURPOSE (next_subobject));
else
- warning ("base %qT will be initialized after",
+ warning (OPT_Wreorder, "base %qT will be initialized after",
TREE_PURPOSE (next_subobject));
if (TREE_CODE (subobject) == FIELD_DECL)
- cp_warning_at (" %q#D", subobject);
+ warning (OPT_Wreorder, " %q+#D", subobject);
else
- warning (" base %qT", subobject);
- warning ("%J when initialized here", current_function_decl);
+ warning (OPT_Wreorder, " base %qT", subobject);
+ warning_at (DECL_SOURCE_LOCATION (current_function_decl),
+ OPT_Wreorder, " when initialized here");
}
/* Look again, from the beginning of the list. */
while (TREE_PURPOSE (subobject_init) != subobject)
subobject_init = TREE_CHAIN (subobject_init);
}
-
+
/* It is invalid to initialize the same subobject more than
once. */
if (TREE_VALUE (subobject_init))
{
if (TREE_CODE (subobject) == FIELD_DECL)
- error ("%Jmultiple initializations given for %qD",
- current_function_decl, subobject);
+ error_at (DECL_SOURCE_LOCATION (current_function_decl),
+ "multiple initializations given for %qD",
+ subobject);
else
- error ("%Jmultiple initializations given for base %qT",
- current_function_decl, subobject);
+ error_at (DECL_SOURCE_LOCATION (current_function_decl),
+ "multiple initializations given for base %qT",
+ subobject);
}
/* Record the initialization. */
int done;
/* Skip uninitialized members and base classes. */
- if (!TREE_VALUE (init)
+ if (!TREE_VALUE (init)
|| TREE_CODE (TREE_PURPOSE (init)) != FIELD_DECL)
continue;
/* See if this field is a member of a union, or a member of a
if (same_type_p (last_field_type, field_type))
{
if (TREE_CODE (field_type) == UNION_TYPE)
- error ("%Jinitializations for multiple members of %qT",
- current_function_decl, last_field_type);
+ error_at (DECL_SOURCE_LOCATION (current_function_decl),
+ "initializations for multiple members of %qT",
+ last_field_type);
done = 1;
break;
}
last_field_type = TYPE_CONTEXT (last_field_type);
}
-
+
/* If we've reached the outermost class, then we're
done. */
if (same_type_p (field_type, t))
void
emit_mem_initializers (tree mem_inits)
{
+ /* We will already have issued an error message about the fact that
+ the type is incomplete. */
+ if (!COMPLETE_TYPE_P (current_class_type))
+ return;
+
/* Sort the mem-initializers into the order in which the
initializations should be performed. */
mem_inits = sort_mem_initializers (current_class_type, mem_inits);
in_base_initializer = 1;
-
+
/* Initialize base classes. */
- while (mem_inits
+ while (mem_inits
&& TREE_CODE (TREE_PURPOSE (mem_inits)) != FIELD_DECL)
{
tree subobject = TREE_PURPOSE (mem_inits);
tree arguments = TREE_VALUE (mem_inits);
- /* If these initializations are taking place in a copy
- constructor, the base class should probably be explicitly
- initialized. */
- if (extra_warnings && !arguments
+ /* If these initializations are taking place in a copy constructor,
+ the base class should probably be explicitly initialized if there
+ is a user-defined constructor in the base class (other than the
+ default constructor, which will be called anyway). */
+ if (extra_warnings && !arguments
&& DECL_COPY_CONSTRUCTOR_P (current_function_decl)
- && TYPE_NEEDS_CONSTRUCTING (BINFO_TYPE (subobject)))
- warning ("%Jbase class %q#T should be explicitly initialized in the "
- "copy constructor",
- current_function_decl, BINFO_TYPE (subobject));
-
- /* If an explicit -- but empty -- initializer list was present,
- treat it just like default initialization at this point. */
- if (arguments == void_type_node)
- arguments = NULL_TREE;
+ && type_has_user_nondefault_constructor (BINFO_TYPE (subobject)))
+ warning_at (DECL_SOURCE_LOCATION (current_function_decl), OPT_Wextra,
+ "base class %q#T should be explicitly initialized in the "
+ "copy constructor",
+ BINFO_TYPE (subobject));
/* Initialize the base. */
if (BINFO_VIRTUAL_P (subobject))
else
{
tree base_addr;
-
+
base_addr = build_base_path (PLUS_EXPR, current_class_ptr,
subobject, 1);
expand_aggr_init_1 (subobject, NULL_TREE,
- build_indirect_ref (base_addr, NULL),
+ cp_build_indirect_ref (base_addr, RO_NULL,
+ tf_warning_or_error),
arguments,
- LOOKUP_NORMAL);
+ LOOKUP_NORMAL,
+ tf_warning_or_error);
expand_cleanup_for_base (subobject, NULL_TREE);
}
/* Initialize the vptrs. */
initialize_vtbl_ptrs (current_class_ptr);
-
+
/* Initialize the data members. */
while (mem_inits)
{
/* Figure out what vtable BINFO's vtable is based on, and mark it as
used. */
vtbl = get_vtbl_decl_for_binfo (binfo_for);
- assemble_external (vtbl);
TREE_USED (vtbl) = 1;
/* Now compute the address to use when initializing the vptr. */
/* Compute the value to use, when there's a VTT. */
vtt_parm = current_vtt_parm;
- vtbl2 = build2 (PLUS_EXPR,
- TREE_TYPE (vtt_parm),
+ vtbl2 = build2 (POINTER_PLUS_EXPR,
+ TREE_TYPE (vtt_parm),
vtt_parm,
vtt_index);
- vtbl2 = build_indirect_ref (vtbl2, NULL);
+ vtbl2 = cp_build_indirect_ref (vtbl2, RO_NULL, tf_warning_or_error);
vtbl2 = convert (TREE_TYPE (vtbl), vtbl2);
/* The actual initializer is the VTT value only in the subobject
constructor. In maybe_clone_body we'll substitute NULL for
the vtt_parm in the case of the non-subobject constructor. */
- vtbl = build3 (COND_EXPR,
- TREE_TYPE (vtbl),
+ vtbl = build3 (COND_EXPR,
+ TREE_TYPE (vtbl),
build2 (EQ_EXPR, boolean_type_node,
current_in_charge_parm, integer_zero_node),
- vtbl2,
+ vtbl2,
vtbl);
}
/* Compute the location of the vtpr. */
- vtbl_ptr = build_vfield_ref (build_indirect_ref (decl, NULL),
+ vtbl_ptr = build_vfield_ref (cp_build_indirect_ref (decl, RO_NULL,
+ tf_warning_or_error),
TREE_TYPE (binfo));
gcc_assert (vtbl_ptr != error_mark_node);
/* Assign the vtable to the vptr. */
vtbl = convert_force (TREE_TYPE (vtbl_ptr), vtbl, 0);
- finish_expr_stmt (build_modify_expr (vtbl_ptr, NOP_EXPR, vtbl));
+ finish_expr_stmt (cp_build_modify_expr (vtbl_ptr, NOP_EXPR, vtbl,
+ tf_warning_or_error));
}
/* If an exception is thrown in a constructor, those base classes already
return;
/* Call the destructor. */
- expr = build_special_member_call (current_class_ref,
+ expr = build_special_member_call (current_class_ref,
base_dtor_identifier,
- NULL_TREE,
+ NULL,
binfo,
- LOOKUP_NORMAL | LOOKUP_NONVIRTUAL);
+ LOOKUP_NORMAL | LOOKUP_NONVIRTUAL,
+ tf_warning_or_error);
if (flag)
- expr = fold (build3 (COND_EXPR, void_type_node,
- c_common_truthvalue_conversion (flag),
- expr, integer_zero_node));
+ expr = fold_build3_loc (input_location,
+ COND_EXPR, void_type_node,
+ c_common_truthvalue_conversion (input_location, flag),
+ expr, integer_zero_node);
finish_eh_cleanup (expr);
}
{
tree inner_if_stmt;
tree exp;
- tree flag;
+ tree flag;
/* If there are virtual base classes with destructors, we need to
emit cleanups to destroy them if an exception is thrown during
confuses the sjlj exception-handling code. Therefore, we do not
create a single conditional block, but one for each
initialization. (That way the cleanup regions always begin
- in the outer block.) We trust the back-end to figure out
+ in the outer block.) We trust the back end to figure out
that the FLAG will not change across initializations, and
avoid doing multiple tests. */
flag = TREE_CHAIN (DECL_ARGUMENTS (current_function_decl));
we already know where it is. */
exp = convert_to_base_statically (current_class_ref, vbase);
- expand_aggr_init_1 (vbase, current_class_ref, exp, arguments,
- LOOKUP_COMPLAIN);
+ expand_aggr_init_1 (vbase, current_class_ref, exp, arguments,
+ LOOKUP_COMPLAIN, tf_warning_or_error);
finish_then_clause (inner_if_stmt);
finish_if_stmt (inner_if_stmt);
is erroneous. FIELD is the member we decided to initialize.
TYPE is the type for which the initialization is being performed.
FIELD must be a member of TYPE.
-
+
MEMBER_NAME is the name of the member. */
static int
/* Look for a direct base. */
for (i = 0; BINFO_BASE_ITERATE (class_binfo, i, direct_binfo); ++i)
- if (same_type_p (basetype, BINFO_TYPE (direct_binfo)))
+ if (SAME_BINFO_TYPE_P (BINFO_TYPE (direct_binfo), basetype))
break;
/* Look for a virtual base -- unless the direct base is itself
virtual_binfo = binfo_for_vbase (basetype, current_class_type);
/* [class.base.init]
-
- If a mem-initializer-id is ambiguous because it designates
+
+ If a mem-initializer-id is ambiguous because it designates
both a direct non-virtual base class and an inherited virtual
base class, the mem-initializer is ill-formed. */
if (direct_binfo && virtual_binfo)
if (!direct_binfo && !virtual_binfo)
{
if (CLASSTYPE_VBASECLASSES (current_class_type))
- error ("type %qD is not a direct or virtual base of %qT",
- name, current_class_type);
+ error ("type %qT is not a direct or virtual base of %qT",
+ basetype, current_class_type);
else
- error ("type %qD is not a direct base of %qT",
- name, current_class_type);
+ error ("type %qT is not a direct base of %qT",
+ basetype, current_class_type);
return NULL_TREE;
}
perform the initialization, but not both, as it would be ambiguous. */
tree
-build_aggr_init (tree exp, tree init, int flags)
+build_aggr_init (tree exp, tree init, int flags, tsubst_flags_t complain)
{
tree stmt_expr;
tree compound_stmt;
initialization form -- unless the initializer is "()". */
if (init && TREE_CODE (init) == TREE_LIST)
{
- error ("bad array initializer");
+ if (complain & tf_error)
+ error ("bad array initializer");
return error_mark_node;
}
/* Must arrange to initialize each element of EXP
from elements of INIT. */
itype = init ? TREE_TYPE (init) : NULL_TREE;
- if (cp_type_quals (type) != TYPE_UNQUALIFIED)
- TREE_TYPE (exp) = TYPE_MAIN_VARIANT (type);
- if (itype && cp_type_quals (itype) != TYPE_UNQUALIFIED)
- itype = TREE_TYPE (init) = TYPE_MAIN_VARIANT (itype);
+ if (cv_qualified_p (type))
+ TREE_TYPE (exp) = cv_unqualified (type);
+ if (itype && cv_qualified_p (itype))
+ TREE_TYPE (init) = cv_unqualified (itype);
stmt_expr = build_vec_init (exp, NULL_TREE, init,
- itype && same_type_p (itype,
- TREE_TYPE (exp)));
+ /*explicit_value_init_p=*/false,
+ itype && same_type_p (TREE_TYPE (init),
+ TREE_TYPE (exp)),
+ complain);
TREE_READONLY (exp) = was_const;
TREE_THIS_VOLATILE (exp) = was_volatile;
TREE_TYPE (exp) = type;
/* Just know that we've seen something for this node. */
TREE_USED (exp) = 1;
- TREE_TYPE (exp) = TYPE_MAIN_VARIANT (type);
is_global = begin_init_stmts (&stmt_expr, &compound_stmt);
destroy_temps = stmts_are_full_exprs_p ();
current_stmt_tree ()->stmts_are_full_exprs_p = 0;
expand_aggr_init_1 (TYPE_BINFO (type), exp, exp,
- init, LOOKUP_NORMAL|flags);
+ init, LOOKUP_NORMAL|flags, complain);
stmt_expr = finish_init_stmts (is_global, stmt_expr, compound_stmt);
current_stmt_tree ()->stmts_are_full_exprs_p = destroy_temps;
- TREE_TYPE (exp) = type;
TREE_READONLY (exp) = was_const;
TREE_THIS_VOLATILE (exp) = was_volatile;
return stmt_expr;
}
-/* Like build_aggr_init, but not just for aggregates. */
-
-tree
-build_init (tree decl, tree init, int flags)
-{
- tree expr;
-
- if (TREE_CODE (TREE_TYPE (decl)) == ARRAY_TYPE)
- expr = build_aggr_init (decl, init, flags);
- else if (CLASS_TYPE_P (TREE_TYPE (decl)))
- expr = build_special_member_call (decl, complete_ctor_identifier,
- build_tree_list (NULL_TREE, init),
- TREE_TYPE (decl),
- LOOKUP_NORMAL|flags);
- else
- expr = build2 (INIT_EXPR, TREE_TYPE (decl), decl, init);
-
- return expr;
-}
-
static void
-expand_default_init (tree binfo, tree true_exp, tree exp, tree init, int flags)
+expand_default_init (tree binfo, tree true_exp, tree exp, tree init, int flags,
+ tsubst_flags_t complain)
{
tree type = TREE_TYPE (exp);
tree ctor_name;
followed by initialization by X. If neither of these work
out, then look hard. */
tree rval;
- tree parms;
+ VEC(tree,gc) *parms;
if (init && TREE_CODE (init) != TREE_LIST
&& (flags & LOOKUP_ONLYCONVERTING))
to run a new constructor; and catching an exception, where we
have already built up the constructor call so we could wrap it
in an exception region. */;
- else if (BRACE_ENCLOSED_INITIALIZER_P (init))
+ else if (BRACE_ENCLOSED_INITIALIZER_P (init)
+ && CP_AGGREGATE_TYPE_P (type))
{
/* A brace-enclosed initializer for an aggregate. */
- gcc_assert (CP_AGGREGATE_TYPE_P (type));
- init = digest_init (type, init, (tree *)NULL);
+ init = digest_init (type, init);
}
else
init = ocp_convert (type, init, CONV_IMPLICIT|CONV_FORCE_TEMP, flags);
return;
}
- if (init == NULL_TREE
- || (TREE_CODE (init) == TREE_LIST && ! TREE_TYPE (init)))
+ if (init == NULL_TREE)
+ parms = NULL;
+ else if (TREE_CODE (init) == TREE_LIST && !TREE_TYPE (init))
{
- parms = init;
- if (parms)
- init = TREE_VALUE (parms);
+ parms = make_tree_vector ();
+ for (; init != NULL_TREE; init = TREE_CHAIN (init))
+ VEC_safe_push (tree, gc, parms, TREE_VALUE (init));
}
else
- parms = build_tree_list (NULL_TREE, init);
+ parms = make_tree_vector_single (init);
if (true_exp == exp)
ctor_name = complete_ctor_identifier;
else
ctor_name = base_ctor_identifier;
- rval = build_special_member_call (exp, ctor_name, parms, binfo, flags);
+ rval = build_special_member_call (exp, ctor_name, &parms, binfo, flags,
+ complain);
+
+ if (parms != NULL)
+ release_tree_vector (parms);
+
if (TREE_SIDE_EFFECTS (rval))
- finish_expr_stmt (convert_to_void (rval, NULL));
+ finish_expr_stmt (convert_to_void (rval, NULL, complain));
}
/* This function is responsible for initializing EXP with INIT
for its description. */
static void
-expand_aggr_init_1 (tree binfo, tree true_exp, tree exp, tree init, int flags)
+expand_aggr_init_1 (tree binfo, tree true_exp, tree exp, tree init, int flags,
+ tsubst_flags_t complain)
{
tree type = TREE_TYPE (exp);
as TARGET_EXPRs. */
if (init && TREE_CODE (exp) == VAR_DECL
- && TREE_CODE (init) == CONSTRUCTOR
- && TREE_HAS_CONSTRUCTOR (init))
+ && COMPOUND_LITERAL_P (init))
{
/* If store_init_value returns NULL_TREE, the INIT has been
- record in the DECL_INITIAL for EXP. That means there's
+ recorded as the DECL_INITIAL for EXP. That means there's
nothing more we have to do. */
- init = store_init_value (exp, init);
+ init = store_init_value (exp, init, flags);
if (init)
finish_expr_stmt (init);
return;
}
+ /* If an explicit -- but empty -- initializer list was present,
+ that's value-initialization. */
+ if (init == void_type_node)
+ {
+ /* If there's a user-provided constructor, we just call that. */
+ if (type_has_user_provided_constructor (type))
+ /* Fall through. */;
+ /* If there isn't, but we still need to call the constructor,
+ zero out the object first. */
+ else if (TYPE_NEEDS_CONSTRUCTING (type))
+ {
+ init = build_zero_init (type, NULL_TREE, /*static_storage_p=*/false);
+ init = build2 (INIT_EXPR, type, exp, init);
+ finish_expr_stmt (init);
+ /* And then call the constructor. */
+ }
+ /* If we don't need to mess with the constructor at all,
+ then just zero out the object and we're done. */
+ else
+ {
+ init = build2 (INIT_EXPR, type, exp, build_value_init_noctor (type));
+ finish_expr_stmt (init);
+ return;
+ }
+ init = NULL_TREE;
+ }
+
/* We know that expand_default_init can handle everything we want
at this point. */
- expand_default_init (binfo, true_exp, exp, init, flags);
+ expand_default_init (binfo, true_exp, exp, init, flags, complain);
}
-/* Report an error if TYPE is not a user-defined, aggregate type. If
+/* Report an error if TYPE is not a user-defined, class type. If
OR_ELSE is nonzero, give an error message. */
int
-is_aggr_type (tree type, int or_else)
+is_class_type (tree type, int or_else)
{
if (type == error_mark_node)
return 0;
- if (! IS_AGGR_TYPE (type)
- && TREE_CODE (type) != TEMPLATE_TYPE_PARM
- && TREE_CODE (type) != BOUND_TEMPLATE_TEMPLATE_PARM)
+ if (! CLASS_TYPE_P (type))
{
if (or_else)
- error ("%qT is not an aggregate type", type);
+ error ("%qT is not a class type", type);
return 0;
}
return 1;
@@ This function should be rewritten and placed in search.c. */
tree
-build_offset_ref (tree type, tree name, bool address_p)
+build_offset_ref (tree type, tree member, bool address_p)
{
tree decl;
- tree member;
tree basebinfo = NULL_TREE;
- tree orig_name = name;
/* class templates can come in as TEMPLATE_DECLs here. */
- if (TREE_CODE (name) == TEMPLATE_DECL)
- return name;
-
- if (dependent_type_p (type) || type_dependent_expression_p (name))
- return build_min_nt (SCOPE_REF, type, name);
-
- if (TREE_CODE (name) == TEMPLATE_ID_EXPR)
- {
- /* If the NAME is a TEMPLATE_ID_EXPR, we are looking at
- something like `a.template f<int>' or the like. For the most
- part, we treat this just like a.f. We do remember, however,
- the template-id that was used. */
- name = TREE_OPERAND (orig_name, 0);
+ if (TREE_CODE (member) == TEMPLATE_DECL)
+ return member;
- if (DECL_P (name))
- name = DECL_NAME (name);
- else
- {
- if (TREE_CODE (name) == COMPONENT_REF)
- name = TREE_OPERAND (name, 1);
- if (TREE_CODE (name) == OVERLOAD)
- name = DECL_NAME (OVL_CURRENT (name));
- }
-
- gcc_assert (TREE_CODE (name) == IDENTIFIER_NODE);
- }
-
- if (type == NULL_TREE)
- return error_mark_node;
-
- /* Handle namespace names fully here. */
- if (TREE_CODE (type) == NAMESPACE_DECL)
- {
- tree t = lookup_namespace_name (type, name);
- if (t == error_mark_node)
- return t;
- if (TREE_CODE (orig_name) == TEMPLATE_ID_EXPR)
- /* Reconstruct the TEMPLATE_ID_EXPR. */
- t = build2 (TEMPLATE_ID_EXPR, TREE_TYPE (t),
- t, TREE_OPERAND (orig_name, 1));
- if (! type_unknown_p (t))
- {
- mark_used (t);
- t = convert_from_reference (t);
- }
- return t;
- }
+ if (dependent_type_p (type) || type_dependent_expression_p (member))
+ return build_qualified_name (NULL_TREE, type, member,
+ /*template_p=*/false);
- if (! is_aggr_type (type, 1))
+ gcc_assert (TYPE_P (type));
+ if (! is_class_type (type, 1))
return error_mark_node;
- if (TREE_CODE (name) == BIT_NOT_EXPR)
- {
- if (! check_dtor_name (type, name))
- error ("qualified type %qT does not match destructor name %<~%T%>",
- type, TREE_OPERAND (name, 0));
- name = dtor_identifier;
- }
+ gcc_assert (DECL_P (member) || BASELINK_P (member));
+ /* Callers should call mark_used before this point. */
+ gcc_assert (!DECL_P (member) || TREE_USED (member));
if (!COMPLETE_TYPE_P (complete_type (type))
&& !TYPE_BEING_DEFINED (type))
{
- error ("incomplete type %qT does not have member %qD", type, name);
+ error ("incomplete type %qT does not have member %qD", type, member);
return error_mark_node;
}
- /* Set up BASEBINFO for member lookup. */
- decl = maybe_dummy_object (type, &basebinfo);
-
- if (BASELINK_P (name) || DECL_P (name))
- member = name;
- else
- {
- member = lookup_member (basebinfo, name, 1, 0);
-
- if (member == error_mark_node)
- return error_mark_node;
- }
-
- if (!member)
- {
- error ("%qD is not a member of type %qT", name, type);
- return error_mark_node;
- }
-
- if (processing_template_decl)
- {
- if (TREE_CODE (orig_name) == TEMPLATE_ID_EXPR)
- return build_min (SCOPE_REF, TREE_TYPE (member), type, orig_name);
- else
- return build_min (SCOPE_REF, TREE_TYPE (member), type, name);
- }
-
+ /* Entities other than non-static members need no further
+ processing. */
if (TREE_CODE (member) == TYPE_DECL)
- {
- TREE_USED (member) = 1;
- return member;
- }
- /* static class members and class-specific enum
- values can be returned without further ado. */
+ return member;
if (TREE_CODE (member) == VAR_DECL || TREE_CODE (member) == CONST_DECL)
- {
- mark_used (member);
- return convert_from_reference (member);
- }
+ return convert_from_reference (member);
if (TREE_CODE (member) == FIELD_DECL && DECL_C_BIT_FIELD (member))
{
return error_mark_node;
}
+ /* Set up BASEBINFO for member lookup. */
+ decl = maybe_dummy_object (type, &basebinfo);
+
/* A lot of this logic is now handled in lookup_member. */
if (BASELINK_P (member))
{
/* Go from the TREE_BASELINK to the member function info. */
- tree fnfields = member;
- tree t = BASELINK_FUNCTIONS (fnfields);
-
- if (TREE_CODE (orig_name) == TEMPLATE_ID_EXPR)
- {
- /* The FNFIELDS are going to contain functions that aren't
- necessarily templates, and templates that don't
- necessarily match the explicit template parameters. We
- save all the functions, and the explicit parameters, and
- then figure out exactly what to instantiate with what
- arguments in instantiate_type. */
-
- if (TREE_CODE (t) != OVERLOAD)
- /* The code in instantiate_type which will process this
- expects to encounter OVERLOADs, not raw functions. */
- t = ovl_cons (t, NULL_TREE);
-
- t = build2 (TEMPLATE_ID_EXPR, TREE_TYPE (t), t,
- TREE_OPERAND (orig_name, 1));
- t = build2 (OFFSET_REF, unknown_type_node, decl, t);
-
- PTRMEM_OK_P (t) = 1;
-
- return t;
- }
+ tree t = BASELINK_FUNCTIONS (member);
if (TREE_CODE (t) != TEMPLATE_ID_EXPR && !really_overloaded_fn (t))
{
(or any class derived from that class). */
if (address_p && DECL_P (t)
&& DECL_NONSTATIC_MEMBER_P (t))
- perform_or_defer_access_check (TYPE_BINFO (type), t);
+ perform_or_defer_access_check (TYPE_BINFO (type), t, t);
else
- perform_or_defer_access_check (basebinfo, t);
+ perform_or_defer_access_check (basebinfo, t, t);
- mark_used (t);
if (DECL_STATIC_FUNCTION_P (t))
return t;
member = t;
}
else
- {
- TREE_TYPE (fnfields) = unknown_type_node;
- member = fnfields;
- }
+ TREE_TYPE (member) = unknown_type_node;
}
else if (address_p && TREE_CODE (member) == FIELD_DECL)
/* We need additional test besides the one in
check_accessibility_of_qualified_id in case it is
a pointer to non-static member. */
- perform_or_defer_access_check (TYPE_BINFO (type), member);
+ perform_or_defer_access_check (TYPE_BINFO (type), member, member);
if (!address_p)
{
a class derived from that class (_class.base.init_). */
if (DECL_NONSTATIC_MEMBER_FUNCTION_P (member))
{
- /* Build a representation of a the qualified name suitable
+ /* Build a representation of the qualified name suitable
for use as the operand to "&" -- even though the "&" is
not actually present. */
member = build2 (OFFSET_REF, TREE_TYPE (member), decl, member);
if (flag_ms_extensions)
{
PTRMEM_OK_P (member) = 1;
- return build_unary_op (ADDR_EXPR, member, 0);
+ return cp_build_unary_op (ADDR_EXPR, member, 0,
+ tf_warning_or_error);
}
- error ("invalid use of non-static member function %qD",
+ error ("invalid use of non-static member function %qD",
TREE_OPERAND (member, 1));
- return member;
+ return error_mark_node;
}
else if (TREE_CODE (member) == FIELD_DECL)
{
return member;
}
- /* In member functions, the form `type::name' is no longer
- equivalent to `this->type::name', at least not until
- resolve_offset_ref. */
member = build2 (OFFSET_REF, TREE_TYPE (member), decl, member);
PTRMEM_OK_P (member) = 1;
return member;
}
-/* If DECL is a `const' declaration, and its value is a known
- constant, then return that value. */
+/* If DECL is a scalar enumeration constant or variable with a
+ constant initializer, return the initializer (or, its initializers,
+ recursively); otherwise, return DECL. If INTEGRAL_P, the
+ initializer is only returned if DECL is an integral
+ constant-expression. */
+
+static tree
+constant_value_1 (tree decl, bool integral_p)
+{
+ while (TREE_CODE (decl) == CONST_DECL
+ || (integral_p
+ ? DECL_INTEGRAL_CONSTANT_VAR_P (decl)
+ : (TREE_CODE (decl) == VAR_DECL
+ && CP_TYPE_CONST_NON_VOLATILE_P (TREE_TYPE (decl)))))
+ {
+ tree init;
+ /* Static data members in template classes may have
+ non-dependent initializers. References to such non-static
+ data members are not value-dependent, so we must retrieve the
+ initializer here. The DECL_INITIAL will have the right type,
+ but will not have been folded because that would prevent us
+ from performing all appropriate semantic checks at
+ instantiation time. */
+ if (DECL_CLASS_SCOPE_P (decl)
+ && CLASSTYPE_TEMPLATE_INFO (DECL_CONTEXT (decl))
+ && uses_template_parms (CLASSTYPE_TI_ARGS
+ (DECL_CONTEXT (decl))))
+ {
+ ++processing_template_decl;
+ init = fold_non_dependent_expr (DECL_INITIAL (decl));
+ --processing_template_decl;
+ }
+ else
+ {
+ /* If DECL is a static data member in a template
+ specialization, we must instantiate it here. The
+ initializer for the static data member is not processed
+ until needed; we need it now. */
+ mark_used (decl);
+ init = DECL_INITIAL (decl);
+ }
+ if (init == error_mark_node)
+ {
+ if (DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (decl))
+ /* Treat the error as a constant to avoid cascading errors on
+ excessively recursive template instantiation (c++/9335). */
+ return init;
+ else
+ return decl;
+ }
+ /* Initializers in templates are generally expanded during
+ instantiation, so before that for const int i(2)
+ INIT is a TREE_LIST with the actual initializer as
+ TREE_VALUE. */
+ if (processing_template_decl
+ && init
+ && TREE_CODE (init) == TREE_LIST
+ && TREE_CHAIN (init) == NULL_TREE)
+ init = TREE_VALUE (init);
+ if (!init
+ || !TREE_TYPE (init)
+ || (integral_p
+ ? !INTEGRAL_OR_ENUMERATION_TYPE_P (TREE_TYPE (init))
+ : (!TREE_CONSTANT (init)
+ /* Do not return an aggregate constant (of which
+ string literals are a special case), as we do not
+ want to make inadvertent copies of such entities,
+ and we must be sure that their addresses are the
+ same everywhere. */
+ || TREE_CODE (init) == CONSTRUCTOR
+ || TREE_CODE (init) == STRING_CST)))
+ break;
+ decl = unshare_expr (init);
+ }
+ return decl;
+}
+
+/* If DECL is a CONST_DECL, or a constant VAR_DECL initialized by
+ constant of integral or enumeration type, then return that value.
+ These are those variables permitted in constant expressions by
+ [5.19/1]. */
+
+tree
+integral_constant_value (tree decl)
+{
+ return constant_value_1 (decl, /*integral_p=*/true);
+}
+
+/* A more relaxed version of integral_constant_value, used by the
+ common C/C++ code and by the C++ front end for optimization
+ purposes. */
tree
decl_constant_value (tree decl)
{
- /* When we build a COND_EXPR, we don't know whether it will be used
- as an lvalue or as an rvalue. If it is an lvalue, it's not safe
- to replace the second and third operands with their
- initializers. So, we do that here. */
- if (TREE_CODE (decl) == COND_EXPR)
- {
- tree d1;
- tree d2;
-
- d1 = decl_constant_value (TREE_OPERAND (decl, 1));
- d2 = decl_constant_value (TREE_OPERAND (decl, 2));
-
- if (d1 != TREE_OPERAND (decl, 1) || d2 != TREE_OPERAND (decl, 2))
- return build3 (COND_EXPR,
- TREE_TYPE (decl),
- TREE_OPERAND (decl, 0), d1, d2);
- }
-
- if (DECL_P (decl)
- && (/* Enumeration constants are constant. */
- TREE_CODE (decl) == CONST_DECL
- /* And so are variables with a 'const' type -- unless they
- are also 'volatile'. */
- || CP_TYPE_CONST_NON_VOLATILE_P (TREE_TYPE (decl)))
- && TREE_CODE (decl) != PARM_DECL
- && DECL_INITIAL (decl)
- && DECL_INITIAL (decl) != error_mark_node
- /* This is invalid if initial value is not constant.
- If it has either a function call, a memory reference,
- or a variable, then re-evaluating it could give different results. */
- && TREE_CONSTANT (DECL_INITIAL (decl))
- /* Check for cases where this is sub-optimal, even though valid. */
- && TREE_CODE (DECL_INITIAL (decl)) != CONSTRUCTOR)
- return DECL_INITIAL (decl);
- return decl;
+ return constant_value_1 (decl,
+ /*integral_p=*/processing_template_decl);
}
\f
/* Common subroutines of build_new and build_vec_delete. */
build_builtin_delete_call (tree addr)
{
mark_used (global_delete_fndecl);
- return build_call (global_delete_fndecl, build_tree_list (NULL_TREE, addr));
+ return build_call_n (global_delete_fndecl, 1, addr);
}
\f
-/* Generate a C++ "new" expression. DECL is either a TREE_LIST
- (which needs to go through some sort of groktypename) or it
- is the name of the class we are newing. INIT is an initialization value.
- It is either an EXPRLIST, an EXPR_NO_COMMAS, or something in braces.
- If INIT is void_type_node, it means do *not* call a constructor
- for this instance.
-
- For types with constructors, the data returned is initialized
- by the appropriate constructor.
+/* Build and return a NEW_EXPR. If NELTS is non-NULL, TYPE[NELTS] is
+ the type of the object being allocated; otherwise, it's just TYPE.
+ INIT is the initializer, if any. USE_GLOBAL_NEW is true if the
+ user explicitly wrote "::operator new". PLACEMENT, if non-NULL, is
+ a vector of arguments to be provided as arguments to a placement
+ new operator. This routine performs no semantic checks; it just
+ creates and returns a NEW_EXPR. */
- Whether the type has a constructor or not, if it has a pointer
- to a virtual function table, then that pointer is set up
- here.
+static tree
+build_raw_new_expr (VEC(tree,gc) *placement, tree type, tree nelts,
+ VEC(tree,gc) *init, int use_global_new)
+{
+ tree init_list;
+ tree new_expr;
+
+ /* If INIT is NULL, the we want to store NULL_TREE in the NEW_EXPR.
+ If INIT is not NULL, then we want to store VOID_ZERO_NODE. This
+ permits us to distinguish the case of a missing initializer "new
+ int" from an empty initializer "new int()". */
+ if (init == NULL)
+ init_list = NULL_TREE;
+ else if (VEC_empty (tree, init))
+ init_list = void_zero_node;
+ else
+ init_list = build_tree_list_vec (init);
- Unless I am mistaken, a call to new () will return initialized
- data regardless of whether the constructor itself is private or
- not. NOPE; new fails if the constructor is private (jcm).
+ new_expr = build4 (NEW_EXPR, build_pointer_type (type),
+ build_tree_list_vec (placement), type, nelts,
+ init_list);
+ NEW_EXPR_USE_GLOBAL (new_expr) = use_global_new;
+ TREE_SIDE_EFFECTS (new_expr) = 1;
- Note that build_new does nothing to assure that any special
- alignment requirements of the type are met. Rather, it leaves
- it up to malloc to do the right thing. Otherwise, folding to
- the right alignment cal cause problems if the user tries to later
- free the memory returned by `new'.
+ return new_expr;
+}
- PLACEMENT is the `placement' list for user-defined operator new (). */
+/* Diagnose uninitialized const members or reference members of type
+ TYPE. USING_NEW is used to disambiguate the diagnostic between a
+ new expression without a new-initializer and a declaration */
-tree
-build_new (tree placement, tree type, tree nelts, tree init,
- int use_global_new)
+static void
+diagnose_uninitialized_cst_or_ref_member_1 (tree type, tree origin,
+ bool using_new)
{
- tree rval;
-
- if (type == error_mark_node)
- return error_mark_node;
-
- if (processing_template_decl)
- {
- rval = build_min (NEW_EXPR, build_pointer_type (type),
- placement, type, nelts, init);
- NEW_EXPR_USE_GLOBAL (rval) = use_global_new;
- TREE_SIDE_EFFECTS (rval) = 1;
- return rval;
- }
-
- /* ``A reference cannot be created by the new operator. A reference
- is not an object (8.2.2, 8.4.3), so a pointer to it could not be
- returned by new.'' ARM 5.3.3 */
- if (TREE_CODE (type) == REFERENCE_TYPE)
- {
- error ("new cannot be applied to a reference type");
- type = TREE_TYPE (type);
- }
+ tree field;
- if (TREE_CODE (type) == FUNCTION_TYPE)
+ for (field = TYPE_FIELDS (type); field; field = TREE_CHAIN (field))
{
- error ("new cannot be applied to a function type");
- return error_mark_node;
- }
+ tree field_type;
- rval = build4 (NEW_EXPR, build_pointer_type (type), placement, type,
- nelts, init);
- NEW_EXPR_USE_GLOBAL (rval) = use_global_new;
- TREE_SIDE_EFFECTS (rval) = 1;
- rval = build_new_1 (rval);
- if (rval == error_mark_node)
- return error_mark_node;
-
- /* Wrap it in a NOP_EXPR so warn_if_unused_value doesn't complain. */
- rval = build1 (NOP_EXPR, TREE_TYPE (rval), rval);
- TREE_NO_WARNING (rval) = 1;
-
- return rval;
-}
-
-/* Given a Java class, return a decl for the corresponding java.lang.Class. */
+ if (TREE_CODE (field) != FIELD_DECL)
+ continue;
-tree
-build_java_class_ref (tree type)
-{
- tree name = NULL_TREE, class_decl;
- static tree CL_suffix = NULL_TREE;
- if (CL_suffix == NULL_TREE)
- CL_suffix = get_identifier("class$");
- if (jclass_node == NULL_TREE)
- {
- jclass_node = IDENTIFIER_GLOBAL_VALUE (get_identifier ("jclass"));
- if (jclass_node == NULL_TREE)
- fatal_error ("call to Java constructor, while %<jclass%> undefined");
+ field_type = strip_array_types (TREE_TYPE (field));
- jclass_node = TREE_TYPE (jclass_node);
- }
+ if (TREE_CODE (field_type) == REFERENCE_TYPE)
+ {
+ if (using_new)
+ error ("uninitialized reference member in %q#T using %<new%>",
+ origin);
+ else
+ error ("uninitialized reference member in %q#T", origin);
+ inform (DECL_SOURCE_LOCATION (field),
+ "%qD should be initialized", field);
+ }
- /* Mangle the class$ field. */
- {
- tree field;
- for (field = TYPE_FIELDS (type); field; field = TREE_CHAIN (field))
- if (DECL_NAME (field) == CL_suffix)
+ if (CP_TYPE_CONST_P (field_type))
{
- mangle_decl (field);
- name = DECL_ASSEMBLER_NAME (field);
- break;
+ if (using_new)
+ error ("uninitialized const member in %q#T using %<new%>",
+ origin);
+ else
+ error ("uninitialized const member in %q#T", origin);
+ inform (DECL_SOURCE_LOCATION (field),
+ "%qD should be initialized", field);
}
- if (!field)
- internal_error ("can't find class$");
- }
- class_decl = IDENTIFIER_GLOBAL_VALUE (name);
- if (class_decl == NULL_TREE)
- {
- class_decl = build_decl (VAR_DECL, name, TREE_TYPE (jclass_node));
- TREE_STATIC (class_decl) = 1;
- DECL_EXTERNAL (class_decl) = 1;
- TREE_PUBLIC (class_decl) = 1;
- DECL_ARTIFICIAL (class_decl) = 1;
- DECL_IGNORED_P (class_decl) = 1;
- pushdecl_top_level (class_decl);
- make_decl_rtl (class_decl);
+ if (CLASS_TYPE_P (field_type))
+ diagnose_uninitialized_cst_or_ref_member_1 (field_type,
+ origin, using_new);
}
- return class_decl;
}
+void
+diagnose_uninitialized_cst_or_ref_member (tree type, bool using_new)
+{
+ diagnose_uninitialized_cst_or_ref_member_1 (type, type, using_new);
+}
-/* Called from cplus_expand_expr when expanding a NEW_EXPR. The return
- value is immediately handed to expand_expr. */
+/* Generate code for a new-expression, including calling the "operator
+ new" function, initializing the object, and, if an exception occurs
+ during construction, cleaning up. The arguments are as for
+ build_raw_new_expr. This may change PLACEMENT and INIT. */
static tree
-build_new_1 (tree exp)
+build_new_1 (VEC(tree,gc) **placement, tree type, tree nelts,
+ VEC(tree,gc) **init, bool globally_qualified_p,
+ tsubst_flags_t complain)
{
- tree placement, init;
- tree true_type, size, rval;
+ tree size, rval;
+ /* True iff this is a call to "operator new[]" instead of just
+ "operator new". */
+ bool array_p = false;
+ /* If ARRAY_P is true, the element type of the array. This is never
+ an ARRAY_TYPE; for something like "new int[3][4]", the
+ ELT_TYPE is "int". If ARRAY_P is false, this is the same type as
+ TYPE. */
+ tree elt_type;
/* The type of the new-expression. (This type is always a pointer
type.) */
tree pointer_type;
- /* The type pointed to by POINTER_TYPE. */
- tree type;
- /* The type being allocated. For "new T[...]" this will be an
- ARRAY_TYPE. */
- tree full_type;
- /* A pointer type pointing to to the FULL_TYPE. */
- tree full_pointer_type;
+ tree non_const_pointer_type;
tree outer_nelts = NULL_TREE;
- tree nelts = NULL_TREE;
tree alloc_call, alloc_expr;
/* The address returned by the call to "operator new". This node is
a VAR_DECL and is therefore reusable. */
tree alloc_node;
tree alloc_fn;
tree cookie_expr, init_expr;
- int has_array = 0;
- enum tree_code code;
int nothrow, check_new;
- /* Nonzero if the user wrote `::new' rather than just `new'. */
- int globally_qualified_p;
int use_java_new = 0;
/* If non-NULL, the number of extra bytes to allocate at the
beginning of the storage allocated for an array-new expression in
order to store the number of elements. */
tree cookie_size = NULL_TREE;
+ tree placement_first;
+ tree placement_expr = NULL_TREE;
/* True if the function we are calling is a placement allocation
function. */
bool placement_allocation_fn_p;
- tree args = NULL_TREE;
/* True if the storage must be initialized, either by a constructor
or due to an explicit new-initializer. */
bool is_initialized;
tree data_addr;
tree init_preeval_expr = NULL_TREE;
- placement = TREE_OPERAND (exp, 0);
- type = TREE_OPERAND (exp, 1);
- nelts = TREE_OPERAND (exp, 2);
- init = TREE_OPERAND (exp, 3);
- globally_qualified_p = NEW_EXPR_USE_GLOBAL (exp);
-
if (nelts)
{
- tree index;
-
- has_array = 1;
outer_nelts = nelts;
-
- /* ??? The middle-end will error on us for building a VLA outside a
- function context. Methinks that's not it's purvey. So we'll do
- our own VLA layout later. */
-
- full_type = build_cplus_array_type (type, NULL_TREE);
-
- index = convert (sizetype, nelts);
- index = size_binop (MINUS_EXPR, index, size_one_node);
- TYPE_DOMAIN (full_type) = build_index_type (index);
+ array_p = true;
+ }
+ else if (TREE_CODE (type) == ARRAY_TYPE)
+ {
+ array_p = true;
+ nelts = array_type_nelts_top (type);
+ outer_nelts = nelts;
+ type = TREE_TYPE (type);
}
- else
- full_type = type;
-
- true_type = type;
-
- code = has_array ? VEC_NEW_EXPR : NEW_EXPR;
/* If our base type is an array, then make sure we know how many elements
it has. */
- while (TREE_CODE (true_type) == ARRAY_TYPE)
- {
- tree this_nelts = array_type_nelts_top (true_type);
- nelts = cp_build_binary_op (MULT_EXPR, nelts, this_nelts);
- true_type = TREE_TYPE (true_type);
+ for (elt_type = type;
+ TREE_CODE (elt_type) == ARRAY_TYPE;
+ elt_type = TREE_TYPE (elt_type))
+ nelts = cp_build_binary_op (input_location,
+ MULT_EXPR, nelts,
+ array_type_nelts_top (elt_type),
+ complain);
+
+ if (TREE_CODE (elt_type) == VOID_TYPE)
+ {
+ if (complain & tf_error)
+ error ("invalid type %<void%> for new");
+ return error_mark_node;
}
- if (!complete_type_or_else (true_type, exp))
+ if (abstract_virtuals_error (NULL_TREE, elt_type))
return error_mark_node;
- if (TREE_CODE (true_type) == VOID_TYPE)
+ is_initialized = (TYPE_NEEDS_CONSTRUCTING (elt_type) || *init != NULL);
+
+ if (*init == NULL && !type_has_user_provided_constructor (elt_type))
{
- error ("invalid type %<void%> for new");
- return error_mark_node;
- }
+ bool uninitialized_error = false;
+ /* A program that calls for default-initialization [...] of an
+ entity of reference type is ill-formed. */
+ if (CLASSTYPE_REF_FIELDS_NEED_INIT (elt_type))
+ uninitialized_error = true;
- if (abstract_virtuals_error (NULL_TREE, true_type))
- return error_mark_node;
+ /* A new-expression that creates an object of type T initializes
+ that object as follows:
+ - If the new-initializer is omitted:
+ -- If T is a (possibly cv-qualified) non-POD class type
+ (or array thereof), the object is default-initialized (8.5).
+ [...]
+ -- Otherwise, the object created has indeterminate
+ value. If T is a const-qualified type, or a (possibly
+ cv-qualified) POD class type (or array thereof)
+ containing (directly or indirectly) a member of
+ const-qualified type, the program is ill-formed; */
- is_initialized = (TYPE_NEEDS_CONSTRUCTING (type) || init);
- if (CP_TYPE_CONST_P (true_type) && !is_initialized)
- {
- error ("uninitialized const in %<new%> of %q#T", true_type);
- return error_mark_node;
+ if (CLASSTYPE_READONLY_FIELDS_NEED_INIT (elt_type))
+ uninitialized_error = true;
+
+ if (uninitialized_error)
+ {
+ if (complain & tf_error)
+ diagnose_uninitialized_cst_or_ref_member (elt_type,
+ /*using_new*/true);
+ return error_mark_node;
+ }
}
- size = size_in_bytes (true_type);
- if (has_array)
+ if (CP_TYPE_CONST_P (elt_type) && *init == NULL
+ && !type_has_user_provided_default_constructor (elt_type))
{
- tree n, bitsize;
+ if (complain & tf_error)
+ error ("uninitialized const in %<new%> of %q#T", elt_type);
+ return error_mark_node;
+ }
- /* Do our own VLA layout. Setting TYPE_SIZE/_UNIT is necessary in
- order for the <INIT_EXPR <*foo> <CONSTRUCTOR ...>> to be valid. */
+ size = size_in_bytes (elt_type);
+ if (array_p)
+ size = size_binop (MULT_EXPR, size, convert (sizetype, nelts));
- n = convert (sizetype, nelts);
- size = size_binop (MULT_EXPR, size, n);
- TYPE_SIZE_UNIT (full_type) = size;
+ alloc_fn = NULL_TREE;
- n = convert (bitsizetype, nelts);
- bitsize = size_binop (MULT_EXPR, TYPE_SIZE (true_type), n);
- TYPE_SIZE (full_type) = bitsize;
- }
+ /* If PLACEMENT is a single simple pointer type not passed by
+ reference, prepare to capture it in a temporary variable. Do
+ this now, since PLACEMENT will change in the calls below. */
+ placement_first = NULL_TREE;
+ if (VEC_length (tree, *placement) == 1
+ && (TREE_CODE (TREE_TYPE (VEC_index (tree, *placement, 0)))
+ == POINTER_TYPE))
+ placement_first = VEC_index (tree, *placement, 0);
/* Allocate the object. */
- if (! placement && TYPE_FOR_JAVA (true_type))
+ if (VEC_empty (tree, *placement) && TYPE_FOR_JAVA (elt_type))
{
- tree class_addr, alloc_decl;
- tree class_decl = build_java_class_ref (true_type);
+ tree class_addr;
+ tree class_decl = build_java_class_ref (elt_type);
static const char alloc_name[] = "_Jv_AllocObject";
+ if (class_decl == error_mark_node)
+ return error_mark_node;
+
use_java_new = 1;
- alloc_decl = NULL;
- if (!get_global_value_if_present (get_identifier (alloc_name),
- &alloc_decl))
+ if (!get_global_value_if_present (get_identifier (alloc_name),
+ &alloc_fn))
{
- error ("call to Java constructor with %qs undefined", alloc_name);
+ if (complain & tf_error)
+ error ("call to Java constructor with %qs undefined", alloc_name);
return error_mark_node;
}
- else if (really_overloaded_fn (alloc_decl))
+ else if (really_overloaded_fn (alloc_fn))
{
- error ("%qD should never be overloaded", alloc_decl);
+ if (complain & tf_error)
+ error ("%qD should never be overloaded", alloc_fn);
return error_mark_node;
}
- alloc_decl = OVL_CURRENT (alloc_decl);
+ alloc_fn = OVL_CURRENT (alloc_fn);
class_addr = build1 (ADDR_EXPR, jclass_node, class_decl);
- alloc_call = (build_function_call
- (alloc_decl,
- build_tree_list (NULL_TREE, class_addr)));
+ alloc_call = (cp_build_function_call
+ (alloc_fn,
+ build_tree_list (NULL_TREE, class_addr),
+ complain));
+ }
+ else if (TYPE_FOR_JAVA (elt_type) && MAYBE_CLASS_TYPE_P (elt_type))
+ {
+ error ("Java class %q#T object allocated using placement new", elt_type);
+ return error_mark_node;
}
else
{
tree fnname;
tree fns;
- fnname = ansi_opname (code);
+ fnname = ansi_opname (array_p ? VEC_NEW_EXPR : NEW_EXPR);
- if (!globally_qualified_p
- && CLASS_TYPE_P (true_type)
- && (has_array
- ? TYPE_HAS_ARRAY_NEW_OPERATOR (true_type)
- : TYPE_HAS_NEW_OPERATOR (true_type)))
+ if (!globally_qualified_p
+ && CLASS_TYPE_P (elt_type)
+ && (array_p
+ ? TYPE_HAS_ARRAY_NEW_OPERATOR (elt_type)
+ : TYPE_HAS_NEW_OPERATOR (elt_type)))
{
/* Use a class-specific operator new. */
/* If a cookie is required, add some extra space. */
- if (has_array && TYPE_VEC_NEW_USES_COOKIE (true_type))
+ if (array_p && TYPE_VEC_NEW_USES_COOKIE (elt_type))
{
- cookie_size = targetm.cxx.get_cookie_size (true_type);
+ cookie_size = targetm.cxx.get_cookie_size (elt_type);
size = size_binop (PLUS_EXPR, size, cookie_size);
}
/* Create the argument list. */
- args = tree_cons (NULL_TREE, size, placement);
+ VEC_safe_insert (tree, gc, *placement, 0, size);
/* Do name-lookup to find the appropriate operator. */
- fns = lookup_fnfields (true_type, fnname, /*protect=*/2);
+ fns = lookup_fnfields (elt_type, fnname, /*protect=*/2);
+ if (fns == NULL_TREE)
+ {
+ if (complain & tf_error)
+ error ("no suitable %qD found in class %qT", fnname, elt_type);
+ return error_mark_node;
+ }
if (TREE_CODE (fns) == TREE_LIST)
{
- error ("request for member %qD is ambiguous", fnname);
- print_candidates (fns);
+ if (complain & tf_error)
+ {
+ error ("request for member %qD is ambiguous", fnname);
+ print_candidates (fns);
+ }
return error_mark_node;
}
- alloc_call = build_new_method_call (build_dummy_object (true_type),
- fns, args,
+ alloc_call = build_new_method_call (build_dummy_object (elt_type),
+ fns, placement,
/*conversion_path=*/NULL_TREE,
- LOOKUP_NORMAL);
+ LOOKUP_NORMAL,
+ &alloc_fn,
+ complain);
}
else
{
/* Use a global operator new. */
/* See if a cookie might be required. */
- if (has_array && TYPE_VEC_NEW_USES_COOKIE (true_type))
- cookie_size = targetm.cxx.get_cookie_size (true_type);
+ if (array_p && TYPE_VEC_NEW_USES_COOKIE (elt_type))
+ cookie_size = targetm.cxx.get_cookie_size (elt_type);
else
cookie_size = NULL_TREE;
- alloc_call = build_operator_new_call (fnname, placement,
- &size, &cookie_size);
+ alloc_call = build_operator_new_call (fnname, placement,
+ &size, &cookie_size,
+ &alloc_fn);
}
}
if (alloc_call == error_mark_node)
return error_mark_node;
+ gcc_assert (alloc_fn != NULL_TREE);
+
+ /* If we found a simple case of PLACEMENT_EXPR above, then copy it
+ into a temporary variable. */
+ if (!processing_template_decl
+ && placement_first != NULL_TREE
+ && TREE_CODE (alloc_call) == CALL_EXPR
+ && call_expr_nargs (alloc_call) == 2
+ && TREE_CODE (TREE_TYPE (CALL_EXPR_ARG (alloc_call, 0))) == INTEGER_TYPE
+ && TREE_CODE (TREE_TYPE (CALL_EXPR_ARG (alloc_call, 1))) == POINTER_TYPE)
+ {
+ tree placement_arg = CALL_EXPR_ARG (alloc_call, 1);
+
+ if (INTEGRAL_OR_ENUMERATION_TYPE_P (TREE_TYPE (TREE_TYPE (placement_arg)))
+ || VOID_TYPE_P (TREE_TYPE (TREE_TYPE (placement_arg))))
+ {
+ placement_expr = get_target_expr (placement_first);
+ CALL_EXPR_ARG (alloc_call, 1)
+ = convert (TREE_TYPE (placement_arg), placement_expr);
+ }
+ }
+
/* In the simple case, we can stop now. */
pointer_type = build_pointer_type (type);
if (!cookie_size && !is_initialized)
return build_nop (pointer_type, alloc_call);
- /* While we're working, use a pointer to the type we've actually
- allocated. Store the result of the call in a variable so that we
- can use it more than once. */
- full_pointer_type = build_pointer_type (full_type);
- alloc_expr = get_target_expr (build_nop (full_pointer_type, alloc_call));
+ /* Store the result of the allocation call in a variable so that we can
+ use it more than once. */
+ alloc_expr = get_target_expr (alloc_call);
alloc_node = TARGET_EXPR_SLOT (alloc_expr);
/* Strip any COMPOUND_EXPRs from ALLOC_CALL. */
- while (TREE_CODE (alloc_call) == COMPOUND_EXPR)
+ while (TREE_CODE (alloc_call) == COMPOUND_EXPR)
alloc_call = TREE_OPERAND (alloc_call, 1);
- alloc_fn = get_callee_fndecl (alloc_call);
- gcc_assert (alloc_fn != NULL_TREE);
/* Now, check to see if this function is actually a placement
allocation function. This can happen even when PLACEMENT is NULL
there is no explicit placement argument. If there is more than
one argument, or there are variable arguments, then this is a
placement allocation function. */
- placement_allocation_fn_p
- = (type_num_arguments (TREE_TYPE (alloc_fn)) > 1
+ placement_allocation_fn_p
+ = (type_num_arguments (TREE_TYPE (alloc_fn)) > 1
|| varargs_function_p (alloc_fn));
/* Preevaluate the placement args so that we don't reevaluate them for a
{
tree cookie;
tree cookie_ptr;
+ tree size_ptr_type;
/* Adjust so we're pointing to the start of the object. */
- data_addr = get_target_expr (build2 (PLUS_EXPR, full_pointer_type,
- alloc_node, cookie_size));
+ data_addr = build2 (POINTER_PLUS_EXPR, TREE_TYPE (alloc_node),
+ alloc_node, cookie_size);
/* Store the number of bytes allocated so that we can know how
many elements to destroy later. We use the last sizeof
(size_t) bytes to store the number of elements. */
- cookie_ptr = build2 (MINUS_EXPR, build_pointer_type (sizetype),
- data_addr, size_in_bytes (sizetype));
- cookie = build_indirect_ref (cookie_ptr, NULL);
+ cookie_ptr = size_binop (MINUS_EXPR, cookie_size, size_in_bytes (sizetype));
+ cookie_ptr = fold_build2_loc (input_location,
+ POINTER_PLUS_EXPR, TREE_TYPE (alloc_node),
+ alloc_node, cookie_ptr);
+ size_ptr_type = build_pointer_type (sizetype);
+ cookie_ptr = fold_convert (size_ptr_type, cookie_ptr);
+ cookie = cp_build_indirect_ref (cookie_ptr, RO_NULL, complain);
cookie_expr = build2 (MODIFY_EXPR, sizetype, cookie, nelts);
if (targetm.cxx.cookie_has_size ())
{
/* Also store the element size. */
- cookie_ptr = build2 (MINUS_EXPR, build_pointer_type (sizetype),
- cookie_ptr, size_in_bytes (sizetype));
- cookie = build_indirect_ref (cookie_ptr, NULL);
+ cookie_ptr = build2 (POINTER_PLUS_EXPR, size_ptr_type, cookie_ptr,
+ fold_build1_loc (input_location,
+ NEGATE_EXPR, sizetype,
+ size_in_bytes (sizetype)));
+
+ cookie = cp_build_indirect_ref (cookie_ptr, RO_NULL, complain);
cookie = build2 (MODIFY_EXPR, sizetype, cookie,
- size_in_bytes(true_type));
+ size_in_bytes (elt_type));
cookie_expr = build2 (COMPOUND_EXPR, TREE_TYPE (cookie_expr),
cookie, cookie_expr);
}
- data_addr = TARGET_EXPR_SLOT (data_addr);
}
else
{
data_addr = alloc_node;
}
+ /* Now use a pointer to the type we've actually allocated. */
+
+ /* But we want to operate on a non-const version to start with,
+ since we'll be modifying the elements. */
+ non_const_pointer_type = build_pointer_type
+ (cp_build_qualified_type (type, TYPE_QUALS (type) & ~TYPE_QUAL_CONST));
+
+ data_addr = fold_convert (non_const_pointer_type, data_addr);
+ /* Any further uses of alloc_node will want this type, too. */
+ alloc_node = fold_convert (non_const_pointer_type, alloc_node);
+
/* Now initialize the allocated object. Note that we preevaluate the
initialization expression, apart from the actual constructor call or
assignment--we do this because we want to delay the allocation as long
if (is_initialized)
{
bool stable;
+ bool explicit_value_init_p = false;
- init_expr = build_indirect_ref (data_addr, NULL);
-
- if (init == void_zero_node)
- init = build_default_init (full_type, nelts);
- else if (init && has_array)
- pedwarn ("ISO C++ forbids initialization in array new");
+ if (*init != NULL && VEC_empty (tree, *init))
+ {
+ *init = NULL;
+ explicit_value_init_p = true;
+ }
- if (has_array)
+ if (array_p)
{
+ tree vecinit = NULL_TREE;
+ if (*init && VEC_length (tree, *init) == 1
+ && BRACE_ENCLOSED_INITIALIZER_P (VEC_index (tree, *init, 0))
+ && CONSTRUCTOR_IS_DIRECT_INIT (VEC_index (tree, *init, 0)))
+ {
+ tree arraytype, domain;
+ vecinit = VEC_index (tree, *init, 0);
+ if (TREE_CONSTANT (nelts))
+ domain = compute_array_index_type (NULL_TREE, nelts);
+ else
+ {
+ domain = NULL_TREE;
+ if (CONSTRUCTOR_NELTS (vecinit) > 0)
+ warning (0, "non-constant array size in new, unable to "
+ "verify length of initializer-list");
+ }
+ arraytype = build_cplus_array_type (type, domain);
+ vecinit = digest_init (arraytype, vecinit);
+ }
+ else if (*init)
+ {
+ if (complain & tf_error)
+ permerror (input_location, "ISO C++ forbids initialization in array new");
+ else
+ return error_mark_node;
+ vecinit = build_tree_list_vec (*init);
+ }
init_expr
- = build_vec_init (init_expr,
- cp_build_binary_op (MINUS_EXPR, outer_nelts,
- integer_one_node),
- init, /*from_array=*/0);
+ = build_vec_init (data_addr,
+ cp_build_binary_op (input_location,
+ MINUS_EXPR, outer_nelts,
+ integer_one_node,
+ complain),
+ vecinit,
+ explicit_value_init_p,
+ /*from_array=*/0,
+ complain);
/* An array initialization is stable because the initialization
of each element is a full-expression, so the temporaries don't
leak out. */
stable = true;
}
- else if (TYPE_NEEDS_CONSTRUCTING (type))
- {
- init_expr = build_special_member_call (init_expr,
- complete_ctor_identifier,
- init, true_type,
- LOOKUP_NORMAL);
- stable = stabilize_init (init_expr, &init_preeval_expr);
- }
else
{
- /* We are processing something like `new int (10)', which
- means allocate an int, and initialize it with 10. */
-
- if (TREE_CODE (init) == TREE_LIST)
- init = build_x_compound_expr_from_list (init, "new initializer");
+ init_expr = cp_build_indirect_ref (data_addr, RO_NULL, complain);
+ if (TYPE_NEEDS_CONSTRUCTING (type) && !explicit_value_init_p)
+ {
+ init_expr = build_special_member_call (init_expr,
+ complete_ctor_identifier,
+ init, elt_type,
+ LOOKUP_NORMAL,
+ complain);
+ }
+ else if (explicit_value_init_p)
+ {
+ /* Something like `new int()'. */
+ init_expr = build2 (INIT_EXPR, type,
+ init_expr, build_value_init (type));
+ }
else
- gcc_assert (TREE_CODE (init) != CONSTRUCTOR
- || TREE_TYPE (init) != NULL_TREE);
+ {
+ tree ie;
+
+ /* We are processing something like `new int (10)', which
+ means allocate an int, and initialize it with 10. */
- init_expr = build_modify_expr (init_expr, INIT_EXPR, init);
+ ie = build_x_compound_expr_from_vec (*init, "new initializer");
+ init_expr = cp_build_modify_expr (init_expr, INIT_EXPR, ie,
+ complain);
+ }
stable = stabilize_init (init_expr, &init_preeval_expr);
}
freed. */
if (flag_exceptions && ! use_java_new)
{
- enum tree_code dcode = has_array ? VEC_DELETE_EXPR : DELETE_EXPR;
+ enum tree_code dcode = array_p ? VEC_DELETE_EXPR : DELETE_EXPR;
tree cleanup;
/* The Standard is unclear here, but the right thing to do
is to use the same method for finding deallocation
functions that we use for finding allocation functions. */
- cleanup = build_op_delete_call (dcode, alloc_node, size,
- globally_qualified_p,
- (placement_allocation_fn_p
- ? alloc_call : NULL_TREE));
+ cleanup = (build_op_delete_call
+ (dcode,
+ alloc_node,
+ size,
+ globally_qualified_p,
+ placement_allocation_fn_p ? alloc_call : NULL_TREE,
+ alloc_fn));
if (!cleanup)
/* We're done. */;
else if (stable)
/* This is much simpler if we were able to preevaluate all of
the arguments to the constructor call. */
- init_expr = build2 (TRY_CATCH_EXPR, void_type_node,
- init_expr, cleanup);
+ {
+ /* CLEANUP is compiler-generated, so no diagnostics. */
+ TREE_NO_WARNING (cleanup) = true;
+ init_expr = build2 (TRY_CATCH_EXPR, void_type_node,
+ init_expr, cleanup);
+ /* Likewise, this try-catch is compiler-generated. */
+ TREE_NO_WARNING (init_expr) = true;
+ }
else
/* Ack! First we allocate the memory. Then we set our sentry
variable to true, and expand a cleanup that deletes the
sentry = TARGET_EXPR_SLOT (begin);
+ /* CLEANUP is compiler-generated, so no diagnostics. */
+ TREE_NO_WARNING (cleanup) = true;
+
TARGET_EXPR_CLEANUP (begin)
= build3 (COND_EXPR, void_type_node, sentry,
cleanup, void_zero_node);
= build2 (COMPOUND_EXPR, void_type_node, begin,
build2 (COMPOUND_EXPR, void_type_node, init_expr,
end));
+ /* Likewise, this is compiler-generated. */
+ TREE_NO_WARNING (init_expr) = true;
}
-
}
}
else
if (cookie_expr)
rval = build2 (COMPOUND_EXPR, TREE_TYPE (rval), cookie_expr, rval);
- if (rval == alloc_node)
+ if (rval == data_addr)
/* If we don't have an initializer or a cookie, strip the TARGET_EXPR
and return the call (which doesn't need to be adjusted). */
rval = TARGET_EXPR_INITIAL (alloc_expr);
{
if (check_new)
{
- tree ifexp = cp_build_binary_op (NE_EXPR, alloc_node,
- integer_zero_node);
- rval = build_conditional_expr (ifexp, rval, alloc_node);
+ tree ifexp = cp_build_binary_op (input_location,
+ NE_EXPR, alloc_node,
+ integer_zero_node,
+ complain);
+ rval = build_conditional_expr (ifexp, rval, alloc_node,
+ complain);
}
/* Perform the allocation before anything else, so that ALLOC_NODE
if (init_preeval_expr)
rval = build2 (COMPOUND_EXPR, TREE_TYPE (rval), init_preeval_expr, rval);
- /* Convert to the final type. */
- rval = build_nop (pointer_type, rval);
-
/* A new-expression is never an lvalue. */
- if (real_lvalue_p (rval))
- rval = build1 (NON_LVALUE_EXPR, TREE_TYPE (rval), rval);
+ gcc_assert (!lvalue_p (rval));
+
+ return convert (pointer_type, rval);
+}
+
+/* Generate a representation for a C++ "new" expression. *PLACEMENT
+ is a vector of placement-new arguments (or NULL if none). If NELTS
+ is NULL, TYPE is the type of the storage to be allocated. If NELTS
+ is not NULL, then this is an array-new allocation; TYPE is the type
+ of the elements in the array and NELTS is the number of elements in
+ the array. *INIT, if non-NULL, is the initializer for the new
+ object, or an empty vector to indicate an initializer of "()". If
+ USE_GLOBAL_NEW is true, then the user explicitly wrote "::new"
+ rather than just "new". This may change PLACEMENT and INIT. */
+
+tree
+build_new (VEC(tree,gc) **placement, tree type, tree nelts,
+ VEC(tree,gc) **init, int use_global_new, tsubst_flags_t complain)
+{
+ tree rval;
+ VEC(tree,gc) *orig_placement = NULL;
+ tree orig_nelts = NULL_TREE;
+ VEC(tree,gc) *orig_init = NULL;
+
+ if (type == error_mark_node)
+ return error_mark_node;
+
+ if (nelts == NULL_TREE && VEC_length (tree, *init) == 1)
+ {
+ tree auto_node = type_uses_auto (type);
+ if (auto_node && describable_type (VEC_index (tree, *init, 0)))
+ type = do_auto_deduction (type, VEC_index (tree, *init, 0), auto_node);
+ }
+
+ if (processing_template_decl)
+ {
+ if (dependent_type_p (type)
+ || any_type_dependent_arguments_p (*placement)
+ || (nelts && type_dependent_expression_p (nelts))
+ || any_type_dependent_arguments_p (*init))
+ return build_raw_new_expr (*placement, type, nelts, *init,
+ use_global_new);
+
+ orig_placement = make_tree_vector_copy (*placement);
+ orig_nelts = nelts;
+ orig_init = make_tree_vector_copy (*init);
+
+ make_args_non_dependent (*placement);
+ if (nelts)
+ nelts = build_non_dependent_expr (nelts);
+ make_args_non_dependent (*init);
+ }
+
+ if (nelts)
+ {
+ if (!build_expr_type_conversion (WANT_INT | WANT_ENUM, nelts, false))
+ {
+ if (complain & tf_error)
+ permerror (input_location, "size in array new must have integral type");
+ else
+ return error_mark_node;
+ }
+ nelts = cp_save_expr (cp_convert (sizetype, nelts));
+ }
+
+ /* ``A reference cannot be created by the new operator. A reference
+ is not an object (8.2.2, 8.4.3), so a pointer to it could not be
+ returned by new.'' ARM 5.3.3 */
+ if (TREE_CODE (type) == REFERENCE_TYPE)
+ {
+ if (complain & tf_error)
+ error ("new cannot be applied to a reference type");
+ else
+ return error_mark_node;
+ type = TREE_TYPE (type);
+ }
+
+ if (TREE_CODE (type) == FUNCTION_TYPE)
+ {
+ if (complain & tf_error)
+ error ("new cannot be applied to a function type");
+ return error_mark_node;
+ }
+
+ /* The type allocated must be complete. If the new-type-id was
+ "T[N]" then we are just checking that "T" is complete here, but
+ that is equivalent, since the value of "N" doesn't matter. */
+ if (!complete_type_or_else (type, NULL_TREE))
+ return error_mark_node;
+
+ rval = build_new_1 (placement, type, nelts, init, use_global_new, complain);
+ if (rval == error_mark_node)
+ return error_mark_node;
+
+ if (processing_template_decl)
+ {
+ tree ret = build_raw_new_expr (orig_placement, type, orig_nelts,
+ orig_init, use_global_new);
+ release_tree_vector (orig_placement);
+ release_tree_vector (orig_init);
+ return ret;
+ }
+
+ /* Wrap it in a NOP_EXPR so warn_if_unused_value doesn't complain. */
+ rval = build1 (NOP_EXPR, TREE_TYPE (rval), rval);
+ TREE_NO_WARNING (rval) = 1;
return rval;
}
+
+/* Given a Java class, return a decl for the corresponding java.lang.Class. */
+
+tree
+build_java_class_ref (tree type)
+{
+ tree name = NULL_TREE, class_decl;
+ static tree CL_suffix = NULL_TREE;
+ if (CL_suffix == NULL_TREE)
+ CL_suffix = get_identifier("class$");
+ if (jclass_node == NULL_TREE)
+ {
+ jclass_node = IDENTIFIER_GLOBAL_VALUE (get_identifier ("jclass"));
+ if (jclass_node == NULL_TREE)
+ {
+ error ("call to Java constructor, while %<jclass%> undefined");
+ return error_mark_node;
+ }
+ jclass_node = TREE_TYPE (jclass_node);
+ }
+
+ /* Mangle the class$ field. */
+ {
+ tree field;
+ for (field = TYPE_FIELDS (type); field; field = TREE_CHAIN (field))
+ if (DECL_NAME (field) == CL_suffix)
+ {
+ mangle_decl (field);
+ name = DECL_ASSEMBLER_NAME (field);
+ break;
+ }
+ if (!field)
+ {
+ error ("can't find %<class$%> in %qT", type);
+ return error_mark_node;
+ }
+ }
+
+ class_decl = IDENTIFIER_GLOBAL_VALUE (name);
+ if (class_decl == NULL_TREE)
+ {
+ class_decl = build_decl (input_location,
+ VAR_DECL, name, TREE_TYPE (jclass_node));
+ TREE_STATIC (class_decl) = 1;
+ DECL_EXTERNAL (class_decl) = 1;
+ TREE_PUBLIC (class_decl) = 1;
+ DECL_ARTIFICIAL (class_decl) = 1;
+ DECL_IGNORED_P (class_decl) = 1;
+ pushdecl_top_level (class_decl);
+ make_decl_rtl (class_decl);
+ }
+ return class_decl;
+}
\f
static tree
build_vec_delete_1 (tree base, tree maxindex, tree type,
executing any other code in the loop.
This is also the containing expression returned by this function. */
tree controller = NULL_TREE;
+ tree tmp;
/* We should only have 1-D arrays here. */
gcc_assert (TREE_CODE (type) != ARRAY_TYPE);
- if (! IS_AGGR_TYPE (type) || TYPE_HAS_TRIVIAL_DESTRUCTOR (type))
+ if (! MAYBE_CLASS_TYPE_P (type) || TYPE_HAS_TRIVIAL_DESTRUCTOR (type))
goto no_destructor;
/* The below is short by the cookie size. */
convert (sizetype, maxindex));
tbase = create_temporary_var (ptype);
- tbase_init = build_modify_expr (tbase, NOP_EXPR,
- fold (build2 (PLUS_EXPR, ptype,
- base,
- virtual_size)));
- DECL_REGISTER (tbase) = 1;
+ tbase_init = cp_build_modify_expr (tbase, NOP_EXPR,
+ fold_build2_loc (input_location,
+ POINTER_PLUS_EXPR, ptype,
+ fold_convert (ptype, base),
+ virtual_size),
+ tf_warning_or_error);
controller = build3 (BIND_EXPR, void_type_node, tbase,
NULL_TREE, NULL_TREE);
TREE_SIDE_EFFECTS (controller) = 1;
body = build1 (EXIT_EXPR, void_type_node,
- build2 (EQ_EXPR, boolean_type_node, base, tbase));
+ build2 (EQ_EXPR, boolean_type_node, tbase,
+ fold_convert (ptype, base)));
+ tmp = fold_build1_loc (input_location, NEGATE_EXPR, sizetype, size_exp);
body = build_compound_expr
- (body, build_modify_expr (tbase, NOP_EXPR,
- build2 (MINUS_EXPR, ptype, tbase, size_exp)));
+ (input_location,
+ body, cp_build_modify_expr (tbase, NOP_EXPR,
+ build2 (POINTER_PLUS_EXPR, ptype, tbase, tmp),
+ tf_warning_or_error));
body = build_compound_expr
- (body, build_delete (ptype, tbase, sfk_complete_destructor,
+ (input_location,
+ body, build_delete (ptype, tbase, sfk_complete_destructor,
LOOKUP_NORMAL|LOOKUP_DESTRUCTOR, 1));
loop = build1 (LOOP_EXPR, void_type_node, body);
- loop = build_compound_expr (tbase_init, loop);
+ loop = build_compound_expr (input_location, tbase_init, loop);
no_destructor:
/* If the delete flag is one, or anything else with the low bit set,
tree cookie_size;
cookie_size = targetm.cxx.get_cookie_size (type);
- base_tbd
+ base_tbd
= cp_convert (ptype,
- cp_build_binary_op (MINUS_EXPR,
- cp_convert (string_type_node,
+ cp_build_binary_op (input_location,
+ MINUS_EXPR,
+ cp_convert (string_type_node,
base),
- cookie_size));
+ cookie_size,
+ tf_warning_or_error));
/* True size with header. */
virtual_size = size_binop (PLUS_EXPR, virtual_size, cookie_size);
}
if (auto_delete_vec == sfk_deleting_destructor)
- deallocate_expr = build_x_delete (base_tbd,
- 2 | use_global_delete,
- virtual_size);
+ deallocate_expr = build_op_delete_call (VEC_DELETE_EXPR,
+ base_tbd, virtual_size,
+ use_global_delete & 1,
+ /*placement=*/NULL_TREE,
+ /*alloc_fn=*/NULL_TREE);
}
body = loop;
else if (!body)
body = deallocate_expr;
else
- body = build_compound_expr (body, deallocate_expr);
-
+ body = build_compound_expr (input_location, body, deallocate_expr);
+
if (!body)
body = integer_zero_node;
-
+
/* Outermost wrapper: If pointer is null, punt. */
- body = fold (build3 (COND_EXPR, void_type_node,
- fold (build2 (NE_EXPR, boolean_type_node, base,
- convert (TREE_TYPE (base),
- integer_zero_node))),
- body, integer_zero_node));
+ body = fold_build3_loc (input_location, COND_EXPR, void_type_node,
+ fold_build2_loc (input_location,
+ NE_EXPR, boolean_type_node, base,
+ convert (TREE_TYPE (base),
+ integer_zero_node)),
+ body, integer_zero_node);
body = build1 (NOP_EXPR, void_type_node, body);
if (controller)
/* Pre-evaluate the SAVE_EXPR outside of the BIND_EXPR. */
body = build2 (COMPOUND_EXPR, void_type_node, base, body);
- return convert_to_void (body, /*implicit=*/NULL);
+ return convert_to_void (body, /*implicit=*/NULL, tf_warning_or_error);
}
-/* Create an unnamed variable of the indicated TYPE. */
+/* Create an unnamed variable of the indicated TYPE. */
tree
create_temporary_var (tree type)
{
tree decl;
-
- decl = build_decl (VAR_DECL, NULL_TREE, type);
+
+ decl = build_decl (input_location,
+ VAR_DECL, NULL_TREE, type);
TREE_USED (decl) = 1;
DECL_ARTIFICIAL (decl) = 1;
- DECL_SOURCE_LOCATION (decl) = input_location;
DECL_IGNORED_P (decl) = 1;
DECL_CONTEXT (decl) = current_function_decl;
decl = create_temporary_var (type);
add_decl_expr (decl);
-
- finish_expr_stmt (build_modify_expr (decl, INIT_EXPR, init));
+
+ finish_expr_stmt (cp_build_modify_expr (decl, INIT_EXPR, init,
+ tf_warning_or_error));
return decl;
}
/* `build_vec_init' returns tree structure that performs
initialization of a vector of aggregate types.
- BASE is a reference to the vector, of ARRAY_TYPE.
+ BASE is a reference to the vector, of ARRAY_TYPE, or a pointer
+ to the first element, of POINTER_TYPE.
MAXINDEX is the maximum index of the array (one less than the
- number of elements). It is only used if
+ number of elements). It is only used if BASE is a pointer or
TYPE_DOMAIN (TREE_TYPE (BASE)) == NULL_TREE.
+
INIT is the (possibly NULL) initializer.
+ If EXPLICIT_VALUE_INIT_P is true, then INIT must be NULL. All
+ elements in the array are value-initialized.
+
FROM_ARRAY is 0 if we should init everything with INIT
(i.e., every element initialized from INIT).
FROM_ARRAY is 1 if we should index into INIT in parallel
but use assignment instead of initialization. */
tree
-build_vec_init (tree base, tree maxindex, tree init, int from_array)
+build_vec_init (tree base, tree maxindex, tree init,
+ bool explicit_value_init_p,
+ int from_array, tsubst_flags_t complain)
{
tree rval;
tree base2 = NULL_TREE;
- tree size;
tree itype = NULL_TREE;
tree iterator;
- /* The type of the array. */
+ /* The type of BASE. */
tree atype = TREE_TYPE (base);
/* The type of an element in the array. */
tree type = TREE_TYPE (atype);
+ /* The element type reached after removing all outer array
+ types. */
+ tree inner_elt_type;
/* The type of a pointer to an element in the array. */
tree ptype;
tree stmt_expr;
tree try_block = NULL_TREE;
int num_initialized_elts = 0;
bool is_global;
-
- if (TYPE_DOMAIN (atype))
+
+ if (TREE_CODE (atype) == ARRAY_TYPE && TYPE_DOMAIN (atype))
maxindex = array_type_nelts (atype);
if (maxindex == NULL_TREE || maxindex == error_mark_node)
return error_mark_node;
+ if (explicit_value_init_p)
+ gcc_assert (!init);
+
+ inner_elt_type = strip_array_types (type);
+
+ /* Look through the TARGET_EXPR around a compound literal. */
+ if (init && TREE_CODE (init) == TARGET_EXPR
+ && TREE_CODE (TARGET_EXPR_INITIAL (init)) == CONSTRUCTOR
+ && from_array != 2)
+ init = TARGET_EXPR_INITIAL (init);
+
if (init
+ && TREE_CODE (atype) == ARRAY_TYPE
&& (from_array == 2
- ? (!CLASS_TYPE_P (type) || !TYPE_HAS_COMPLEX_ASSIGN_REF (type))
+ ? (!CLASS_TYPE_P (inner_elt_type)
+ || !TYPE_HAS_COMPLEX_ASSIGN_REF (inner_elt_type))
: !TYPE_NEEDS_CONSTRUCTING (type))
&& ((TREE_CODE (init) == CONSTRUCTOR
/* Don't do this if the CONSTRUCTOR might contain something
that might throw and require us to clean up. */
- && (CONSTRUCTOR_ELTS (init) == NULL_TREE
- || ! TYPE_HAS_NONTRIVIAL_DESTRUCTOR (target_type (type))))
+ && (VEC_empty (constructor_elt, CONSTRUCTOR_ELTS (init))
+ || ! TYPE_HAS_NONTRIVIAL_DESTRUCTOR (inner_elt_type)))
|| from_array))
{
- /* Do non-default initialization of POD arrays resulting from
+ /* Do non-default initialization of trivial arrays resulting from
brace-enclosed initializers. In this case, digest_init and
store_constructor will handle the semantics for us. */
}
maxindex = cp_convert (ptrdiff_type_node, maxindex);
- ptype = build_pointer_type (type);
- size = size_in_bytes (type);
- if (TREE_CODE (TREE_TYPE (base)) == ARRAY_TYPE)
- base = cp_convert (ptype, decay_conversion (base));
+ if (TREE_CODE (atype) == ARRAY_TYPE)
+ {
+ ptype = build_pointer_type (type);
+ base = cp_convert (ptype, decay_conversion (base));
+ }
+ else
+ ptype = atype;
/* The code we are generating looks like:
({
++t1;
}
} catch (...) {
- ... destroy elements that were constructed ...
+ ... destroy elements that were constructed ...
}
rval;
})
-
+
We can omit the try and catch blocks if we know that the
initialization will never throw an exception, or if the array
elements do not have destructors. We can omit the loop completely if
- the elements of the array do not have constructors.
+ the elements of the array do not have constructors.
We actually wrap the entire body of the above in a STMT_EXPR, for
- tidiness.
+ tidiness.
When copying from array to another, when the array elements have
only trivial copy constructors, we should use __builtin_memcpy
rather than generating a loop. That way, we could take advantage
- of whatever cleverness the back-end has for dealing with copies
+ of whatever cleverness the back end has for dealing with copies
of blocks of memory. */
is_global = begin_init_stmts (&stmt_expr, &compound_stmt);
base = get_temp_regvar (ptype, rval);
iterator = get_temp_regvar (ptrdiff_type_node, maxindex);
+ /* If initializing one array from another, initialize element by
+ element. We rely upon the below calls to do the argument
+ checking. Evaluate the initializer before entering the try block. */
+ if (from_array && init && TREE_CODE (init) != CONSTRUCTOR)
+ {
+ base2 = decay_conversion (init);
+ itype = TREE_TYPE (base2);
+ base2 = get_temp_regvar (itype, base2);
+ itype = TREE_TYPE (itype);
+ }
+
/* Protect the entire array initialization so that we can destroy
the partially constructed array if an exception is thrown.
But don't do this if we're assigning. */
if (init != NULL_TREE && TREE_CODE (init) == CONSTRUCTOR)
{
- /* Do non-default initialization of non-POD arrays resulting from
+ /* Do non-default initialization of non-trivial arrays resulting from
brace-enclosed initializers. */
-
- tree elts;
+ unsigned HOST_WIDE_INT idx;
+ tree elt;
from_array = 0;
- for (elts = CONSTRUCTOR_ELTS (init); elts; elts = TREE_CHAIN (elts))
+ FOR_EACH_CONSTRUCTOR_VALUE (CONSTRUCTOR_ELTS (init), idx, elt)
{
- tree elt = TREE_VALUE (elts);
tree baseref = build1 (INDIRECT_REF, type, base);
num_initialized_elts++;
current_stmt_tree ()->stmts_are_full_exprs_p = 1;
- if (IS_AGGR_TYPE (type) || TREE_CODE (type) == ARRAY_TYPE)
- finish_expr_stmt (build_aggr_init (baseref, elt, 0));
+ if (MAYBE_CLASS_TYPE_P (type) || TREE_CODE (type) == ARRAY_TYPE)
+ finish_expr_stmt (build_aggr_init (baseref, elt, 0, complain));
else
- finish_expr_stmt (build_modify_expr (baseref, NOP_EXPR,
- elt));
+ finish_expr_stmt (cp_build_modify_expr (baseref, NOP_EXPR,
+ elt, complain));
current_stmt_tree ()->stmts_are_full_exprs_p = 0;
- finish_expr_stmt (build_unary_op (PREINCREMENT_EXPR, base, 0));
- finish_expr_stmt (build_unary_op (PREDECREMENT_EXPR, iterator, 0));
+ finish_expr_stmt (cp_build_unary_op (PREINCREMENT_EXPR, base, 0,
+ complain));
+ finish_expr_stmt (cp_build_unary_op (PREDECREMENT_EXPR, iterator, 0,
+ complain));
}
/* Clear out INIT so that we don't get confused below. */
}
else if (from_array)
{
- /* If initializing one array from another, initialize element by
- element. We rely upon the below calls the do argument
- checking. */
if (init)
- {
- base2 = decay_conversion (init);
- itype = TREE_TYPE (base2);
- base2 = get_temp_regvar (itype, base2);
- itype = TREE_TYPE (itype);
- }
+ /* OK, we set base2 above. */;
else if (TYPE_LANG_SPECIFIC (type)
&& TYPE_NEEDS_CONSTRUCTING (type)
&& ! TYPE_HAS_DEFAULT_CONSTRUCTOR (type))
{
- error ("initializer ends prematurely");
+ if (complain & tf_error)
+ error ("initializer ends prematurely");
return error_mark_node;
}
}
We do need to keep going if we're copying an array. */
if (from_array
- || (TYPE_NEEDS_CONSTRUCTING (type)
+ || ((TYPE_NEEDS_CONSTRUCTING (type) || explicit_value_init_p)
&& ! (host_integerp (maxindex, 0)
&& (num_initialized_elts
== tree_low_cst (maxindex, 0) + 1))))
we've already initialized all the elements. */
tree for_stmt;
tree elt_init;
+ tree to;
for_stmt = begin_for_stmt ();
finish_for_init_stmt (for_stmt);
- finish_for_cond (build2 (NE_EXPR, boolean_type_node,
- iterator, integer_minus_one_node),
+ finish_for_cond (build2 (NE_EXPR, boolean_type_node, iterator,
+ build_int_cst (TREE_TYPE (iterator), -1)),
for_stmt);
- finish_for_expr (build_unary_op (PREDECREMENT_EXPR, iterator, 0),
+ finish_for_expr (cp_build_unary_op (PREDECREMENT_EXPR, iterator, 0,
+ complain),
for_stmt);
+ to = build1 (INDIRECT_REF, type, base);
+
if (from_array)
{
- tree to = build1 (INDIRECT_REF, type, base);
tree from;
if (base2)
from = NULL_TREE;
if (from_array == 2)
- elt_init = build_modify_expr (to, NOP_EXPR, from);
+ elt_init = cp_build_modify_expr (to, NOP_EXPR, from,
+ complain);
else if (TYPE_NEEDS_CONSTRUCTING (type))
- elt_init = build_aggr_init (to, from, 0);
+ elt_init = build_aggr_init (to, from, 0, complain);
else if (from)
- elt_init = build_modify_expr (to, NOP_EXPR, from);
+ elt_init = cp_build_modify_expr (to, NOP_EXPR, from,
+ complain);
else
gcc_unreachable ();
}
sorry
("cannot initialize multi-dimensional array with initializer");
elt_init = build_vec_init (build1 (INDIRECT_REF, type, base),
- 0, 0, 0);
+ 0, 0,
+ explicit_value_init_p,
+ 0, complain);
}
+ else if (explicit_value_init_p)
+ elt_init = build2 (INIT_EXPR, type, to,
+ build_value_init (type));
else
- elt_init = build_aggr_init (build1 (INDIRECT_REF, type, base),
- init, 0);
-
+ {
+ gcc_assert (TYPE_NEEDS_CONSTRUCTING (type));
+ elt_init = build_aggr_init (to, init, 0, complain);
+ }
+
current_stmt_tree ()->stmts_are_full_exprs_p = 1;
finish_expr_stmt (elt_init);
current_stmt_tree ()->stmts_are_full_exprs_p = 0;
- finish_expr_stmt (build_unary_op (PREINCREMENT_EXPR, base, 0));
+ finish_expr_stmt (cp_build_unary_op (PREINCREMENT_EXPR, base, 0,
+ complain));
if (base2)
- finish_expr_stmt (build_unary_op (PREINCREMENT_EXPR, base2, 0));
+ finish_expr_stmt (cp_build_unary_op (PREINCREMENT_EXPR, base2, 0,
+ complain));
finish_for_stmt (for_stmt);
}
&& from_array != 2)
{
tree e;
- tree m = cp_build_binary_op (MINUS_EXPR, maxindex, iterator);
+ tree m = cp_build_binary_op (input_location,
+ MINUS_EXPR, maxindex, iterator,
+ complain);
/* Flatten multi-dimensional array since build_vec_delete only
expects one-dimensional array. */
if (TREE_CODE (type) == ARRAY_TYPE)
- {
- m = cp_build_binary_op (MULT_EXPR, m,
- array_type_nelts_total (type));
- type = strip_array_types (type);
- }
+ m = cp_build_binary_op (input_location,
+ MULT_EXPR, m,
+ array_type_nelts_total (type),
+ complain);
finish_cleanup_try_block (try_block);
- e = build_vec_delete_1 (rval, m, type, sfk_base_destructor,
+ e = build_vec_delete_1 (rval, m,
+ inner_elt_type, sfk_base_destructor,
/*use_global_delete=*/0);
finish_cleanup (e, try_block);
}
stmt_expr = finish_init_stmts (is_global, stmt_expr, compound_stmt);
- /* Now convert make the result have the correct type. */
- atype = build_pointer_type (atype);
- stmt_expr = build1 (NOP_EXPR, atype, stmt_expr);
- stmt_expr = build_indirect_ref (stmt_expr, NULL);
-
+ /* Now make the result have the correct type. */
+ if (TREE_CODE (atype) == ARRAY_TYPE)
+ {
+ atype = build_pointer_type (atype);
+ stmt_expr = build1 (NOP_EXPR, atype, stmt_expr);
+ stmt_expr = cp_build_indirect_ref (stmt_expr, RO_NULL, complain);
+ TREE_NO_WARNING (stmt_expr) = 1;
+ }
+
current_stmt_tree ()->stmts_are_full_exprs_p = destroy_temps;
return stmt_expr;
}
-/* Free up storage of type TYPE, at address ADDR.
-
- TYPE is a POINTER_TYPE and can be ptr_type_node for no special type
- of pointer.
-
- VIRTUAL_SIZE is the amount of storage that was allocated, and is
- used as the second argument to operator delete. It can include
- things like padding and magic size cookies. It has virtual in it,
- because if you have a base pointer and you delete through a virtual
- destructor, it should be the size of the dynamic object, not the
- static object, see Free Store 12.5 ISO C++.
-
- This does not call any destructors. */
-
-tree
-build_x_delete (tree addr, int which_delete, tree virtual_size)
-{
- int use_global_delete = which_delete & 1;
- int use_vec_delete = !!(which_delete & 2);
- enum tree_code code = use_vec_delete ? VEC_DELETE_EXPR : DELETE_EXPR;
-
- return build_op_delete_call (code, addr, virtual_size, use_global_delete,
- NULL_TREE);
-}
-
/* Call the DTOR_KIND destructor for EXP. FLAGS are as for
build_delete. */
default:
gcc_unreachable ();
}
-
- exp = convert_from_reference (exp);
fn = lookup_fnfields (TREE_TYPE (exp), name, /*protect=*/2);
- return build_new_method_call (exp, fn,
- /*args=*/NULL_TREE,
+ return build_new_method_call (exp, fn,
+ /*args=*/NULL,
/*conversion_path=*/NULL_TREE,
- flags);
+ flags,
+ /*fn_p=*/NULL,
+ tf_warning_or_error);
}
/* Generate a call to a destructor. TYPE is the type to cast ADDR to.
complete_type (type);
if (!COMPLETE_TYPE_P (type))
{
- warning ("possible problem detected in invocation of "
- "delete operator:");
- cxx_incomplete_type_diagnostic (addr, type, 1);
- inform ("neither the destructor nor the class-specific "
- "operator delete will be called, even if they are "
- "declared when the class is defined.");
+ if (warning (0, "possible problem detected in invocation of "
+ "delete operator:"))
+ {
+ cxx_incomplete_type_diagnostic (addr, type, DK_WARNING);
+ inform (input_location, "neither the destructor nor the class-specific "
+ "operator delete will be called, even if they are "
+ "declared when the class is defined.");
+ }
complete_p = false;
}
}
- if (VOID_TYPE_P (type) || !complete_p || !IS_AGGR_TYPE (type))
+ if (VOID_TYPE_P (type) || !complete_p || !MAYBE_CLASS_TYPE_P (type))
/* Call the builtin operator delete. */
return build_builtin_delete_call (addr);
if (TREE_SIDE_EFFECTS (addr))
else if (TREE_CODE (type) == ARRAY_TYPE)
{
handle_array:
-
+
if (TYPE_DOMAIN (type) == NULL_TREE)
{
error ("unknown array size in delete");
/* Don't check PROTECT here; leave that decision to the
destructor. If the destructor is accessible, call it,
else report error. */
- addr = build_unary_op (ADDR_EXPR, addr, 0);
+ addr = cp_build_unary_op (ADDR_EXPR, addr, 0, tf_warning_or_error);
if (TREE_SIDE_EFFECTS (addr))
addr = save_expr (addr);
addr = convert_force (build_pointer_type (type), addr, 0);
}
- gcc_assert (IS_AGGR_TYPE (type));
+ gcc_assert (MAYBE_CLASS_TYPE_P (type));
if (TYPE_HAS_TRIVIAL_DESTRUCTOR (type))
{
if (auto_delete != sfk_deleting_destructor)
return void_zero_node;
- return build_op_delete_call
- (DELETE_EXPR, addr, cxx_sizeof_nowarn (type), use_global_delete,
- NULL_TREE);
+ return build_op_delete_call (DELETE_EXPR, addr,
+ cxx_sizeof_nowarn (type),
+ use_global_delete,
+ /*placement=*/NULL_TREE,
+ /*alloc_fn=*/NULL_TREE);
}
else
{
+ tree head = NULL_TREE;
tree do_delete = NULL_TREE;
tree ifexp;
- gcc_assert (TYPE_HAS_DESTRUCTOR (type));
+ if (CLASSTYPE_LAZY_DESTRUCTOR (type))
+ lazily_declare_fn (sfk_destructor, type);
/* For `::delete x', we must not use the deleting destructor
since then we would not be sure to get the global `operator
{
/* We will use ADDR multiple times so we must save it. */
addr = save_expr (addr);
+ head = get_target_expr (build_headof (addr));
/* Delete the object. */
- do_delete = build_builtin_delete_call (addr);
+ do_delete = build_builtin_delete_call (head);
/* Otherwise, treat this like a complete object destructor
call. */
auto_delete = sfk_complete_destructor;
addr,
cxx_sizeof_nowarn (type),
/*global_p=*/false,
- NULL_TREE);
+ /*placement=*/NULL_TREE,
+ /*alloc_fn=*/NULL_TREE);
/* Call the complete object destructor. */
auto_delete = sfk_complete_destructor;
}
/* Make sure we have access to the member op delete, even though
we'll actually be calling it from the destructor. */
build_op_delete_call (DELETE_EXPR, addr, cxx_sizeof_nowarn (type),
- /*global_p=*/false, NULL_TREE);
+ /*global_p=*/false,
+ /*placement=*/NULL_TREE,
+ /*alloc_fn=*/NULL_TREE);
}
- expr = build_dtor_call (build_indirect_ref (addr, NULL),
+ expr = build_dtor_call (cp_build_indirect_ref (addr, RO_NULL,
+ tf_warning_or_error),
auto_delete, flags);
if (do_delete)
expr = build2 (COMPOUND_EXPR, void_type_node, expr, do_delete);
+ /* We need to calculate this before the dtor changes the vptr. */
+ if (head)
+ expr = build2 (COMPOUND_EXPR, void_type_node, head, expr);
+
if (flags & LOOKUP_DESTRUCTOR)
/* Explicit destructor call; don't check for null pointer. */
ifexp = integer_one_node;
else
/* Handle deleting a null pointer. */
- ifexp = fold (cp_build_binary_op (NE_EXPR, addr, integer_zero_node));
+ ifexp = fold (cp_build_binary_op (input_location,
+ NE_EXPR, addr, integer_zero_node,
+ tf_warning_or_error));
if (ifexp != integer_one_node)
expr = build3 (COND_EXPR, void_type_node,
int i;
tree member;
tree expr;
- VEC (tree) *vbases;
+ VEC(tree,gc) *vbases;
/* Run destructors for all virtual baseclasses. */
if (CLASSTYPE_VBASECLASSES (current_class_type))
{
if (TYPE_HAS_NONTRIVIAL_DESTRUCTOR (BINFO_TYPE (base_binfo)))
{
- expr = build_special_member_call (current_class_ref,
+ expr = build_special_member_call (current_class_ref,
base_dtor_identifier,
- NULL_TREE,
+ NULL,
base_binfo,
- (LOOKUP_NORMAL
- | LOOKUP_NONVIRTUAL));
+ (LOOKUP_NORMAL
+ | LOOKUP_NONVIRTUAL),
+ tf_warning_or_error);
expr = build3 (COND_EXPR, void_type_node, cond,
expr, void_zero_node);
finish_decl_cleanup (NULL_TREE, expr);
|| BINFO_VIRTUAL_P (base_binfo))
continue;
- expr = build_special_member_call (current_class_ref,
+ expr = build_special_member_call (current_class_ref,
base_dtor_identifier,
- NULL_TREE, base_binfo,
- LOOKUP_NORMAL | LOOKUP_NONVIRTUAL);
+ NULL, base_binfo,
+ LOOKUP_NORMAL | LOOKUP_NONVIRTUAL,
+ tf_warning_or_error);
finish_decl_cleanup (NULL_TREE, expr);
}
for (member = TYPE_FIELDS (current_class_type); member;
member = TREE_CHAIN (member))
{
- if (TREE_CODE (member) != FIELD_DECL || DECL_ARTIFICIAL (member))
+ if (TREE_TYPE (member) == error_mark_node
+ || TREE_CODE (member) != FIELD_DECL
+ || DECL_ARTIFICIAL (member))
continue;
if (TYPE_HAS_NONTRIVIAL_DESTRUCTOR (TREE_TYPE (member)))
{
- tree this_member = (build_class_member_access_expr
- (current_class_ref, member,
+ tree this_member = (build_class_member_access_expr
+ (current_class_ref, member,
/*access_path=*/NULL_TREE,
- /*preserve_reference=*/false));
+ /*preserve_reference=*/false,
+ tf_warning_or_error));
tree this_type = TREE_TYPE (member);
expr = build_delete (this_type, this_member,
sfk_complete_destructor,
}
}
-/* For type TYPE, delete the virtual baseclass objects of DECL. */
-
-tree
-build_vbase_delete (tree type, tree decl)
-{
- unsigned ix;
- tree binfo;
- tree result;
- VEC (tree) *vbases;
- tree addr = build_unary_op (ADDR_EXPR, decl, 0);
-
- gcc_assert (addr != error_mark_node);
-
- result = convert_to_void (integer_zero_node, NULL);
- for (vbases = CLASSTYPE_VBASECLASSES (type), ix = 0;
- VEC_iterate (tree, vbases, ix, binfo); ix++)
- {
- tree base_addr = convert_force
- (build_pointer_type (BINFO_TYPE (binfo)), addr, 0);
- tree base_delete = build_delete
- (TREE_TYPE (base_addr), base_addr, sfk_base_destructor,
- LOOKUP_NORMAL|LOOKUP_DESTRUCTOR, 0);
-
- result = build_compound_expr (result, base_delete);
- }
- return result;
-}
-
/* Build a C++ vector delete expression.
MAXINDEX is the number of elements to be deleted.
ELT_SIZE is the nominal size of each element in the vector.
{
/* Step back one from start of vector, and read dimension. */
tree cookie_addr;
+ tree size_ptr_type = build_pointer_type (sizetype);
if (TREE_SIDE_EFFECTS (base))
{
base = TARGET_EXPR_SLOT (base_init);
}
type = strip_array_types (TREE_TYPE (type));
- cookie_addr = build2 (MINUS_EXPR,
- build_pointer_type (sizetype),
- base,
- TYPE_SIZE_UNIT (sizetype));
- maxindex = build_indirect_ref (cookie_addr, NULL);
+ cookie_addr = fold_build1_loc (input_location, NEGATE_EXPR,
+ sizetype, TYPE_SIZE_UNIT (sizetype));
+ cookie_addr = build2 (POINTER_PLUS_EXPR,
+ size_ptr_type,
+ fold_convert (size_ptr_type, base),
+ cookie_addr);
+ maxindex = cp_build_indirect_ref (cookie_addr, RO_NULL, tf_warning_or_error);
}
else if (TREE_CODE (type) == ARRAY_TYPE)
{
bad name. */
maxindex = array_type_nelts_total (type);
type = strip_array_types (type);
- base = build_unary_op (ADDR_EXPR, base, 1);
+ base = cp_build_unary_op (ADDR_EXPR, base, 1, tf_warning_or_error);
if (TREE_SIDE_EFFECTS (base))
{
base_init = get_target_expr (base);
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