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-rw-r--r--contrib/gcc/objc/objects.c92
1 files changed, 92 insertions, 0 deletions
diff --git a/contrib/gcc/objc/objects.c b/contrib/gcc/objc/objects.c
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+/* GNU Objective C Runtime class related functions
+ Copyright (C) 1993, 1995 Free Software Foundation, Inc.
+ Contributed by Kresten Krab Thorup
+
+This file is part of GNU CC.
+
+GNU CC 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) any later version.
+
+GNU CC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+details.
+
+You should have received a copy of the GNU General Public License along with
+GNU CC; see the file COPYING. If not, write to the Free Software
+Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+/* As a special exception, if you link this library with files compiled with
+ GCC to produce an executable, this does not cause the resulting executable
+ to be covered by the GNU General Public License. This exception does not
+ however invalidate any other reasons why the executable file might be
+ covered by the GNU General Public License. */
+
+#include "../tconfig.h" /* include defs of bzero for target */
+#include "runtime.h" /* the kitchen sink */
+
+id __objc_object_alloc(Class);
+id __objc_object_dispose(id);
+id __objc_object_copy(id);
+
+id (*_objc_object_alloc)(Class) = __objc_object_alloc;
+id (*_objc_object_dispose)(id) = __objc_object_dispose;
+id (*_objc_object_copy)(id) = __objc_object_copy;
+
+id
+class_create_instance(Class class)
+{
+ id new = nil;
+ if (CLS_ISCLASS(class))
+ new = (*_objc_object_alloc)(class);
+ if (new!=nil)
+ {
+ memset (new, 0, class->instance_size);
+ new->class_pointer = class;
+ }
+ return new;
+}
+
+id
+object_copy(id object)
+{
+ if ((object!=nil)&&CLS_ISCLASS(object->class_pointer))
+ return (*_objc_object_copy)(object);
+ else
+ return nil;
+}
+
+id
+object_dispose(id object)
+{
+ if ((object!=nil)&&CLS_ISCLASS(object->class_pointer))
+ {
+ if (_objc_object_dispose)
+ (*_objc_object_dispose)(object);
+ else
+ free(object);
+ }
+ return nil;
+}
+
+id __objc_object_alloc(Class class)
+{
+ return (id)__objc_xmalloc(class->instance_size);
+}
+
+id __objc_object_dispose(id object)
+{
+ free(object);
+ return 0;
+}
+
+id __objc_object_copy(id object)
+{
+ id copy = class_create_instance(object->class_pointer);
+ memcpy(copy, object, object->class_pointer->instance_size);
+ return copy;
+}
+
+
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