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objc-act.c (objc_fold_objc_type_ref): New function.

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[gcc/objc/ChangeLog]
2004-09-21  Ziemowit Laski  <zlaski@apple.com>

        * objc-act.c (objc_fold_objc_type_ref): New function.
        * objc-act.h (objc_fold_objc_type_ref): New prototype.

From-SVN: r87838
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Ziemowit Laski 2004-09-22 01:13:07 +00:00 committed by Ziemowit Laski
parent 76419821c6
commit 86c440722e
3 changed files with 33 additions and 0 deletions
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5
gcc/objc/ChangeLog
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@ -1,3 +1,8 @@
2004-09-21 Ziemowit Laski <zlaski@apple.com>
* objc-act.c (objc_fold_objc_type_ref): New function.
* objc-act.h (objc_fold_objc_type_ref): New prototype.
2004-09-09 Joseph S. Myers <jsm@polyomino.org.uk>
* objc-act.c (objc_start_function, really_start_method,

27
gcc/objc/objc-act.c
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@ -7530,6 +7530,33 @@ comp_proto_with_proto (tree proto1, tree proto2)
return (!type1 && !type2);
}
/* Fold an OBJ_TYPE_REF expression for ObjC method dispatches, where
this occurs. ObjC method dispatches are _not_ like C++ virtual
member function dispatches, and we account for the difference here. */
tree
#ifdef OBJCPLUS
objc_fold_obj_type_ref (tree ref, tree known_type)
#else
objc_fold_obj_type_ref (tree ref ATTRIBUTE_UNUSED,
tree known_type ATTRIBUTE_UNUSED)
#endif
{
#ifdef OBJCPLUS
tree v = BINFO_VIRTUALS (TYPE_BINFO (known_type));
/* If the receiver does not have virtual member functions, there
is nothing we can (or need to) do here. */
if (!v)
return NULL_TREE;
/* Let C++ handle C++ virtual functions. */
return cp_fold_obj_type_ref (ref, known_type);
#else
/* For plain ObjC, we currently do not need to do anything. */
return NULL_TREE;
#endif
}
static void
objc_start_function (tree name, tree type, tree attrs,
#ifdef OBJCPLUS

1
gcc/objc/objc-act.h
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@ -27,6 +27,7 @@ Boston, MA 02111-1307, USA. */
bool objc_init (void);
const char *objc_printable_name (tree, int);
void objc_finish_file (void);
tree objc_fold_obj_type_ref (tree, tree);
/* NB: The remaining public functions are prototyped in c-common.h, for the
benefit of stub-objc.c and objc-act.c. */