Virgin import of GCC 2.95.1's libobjc.

(previous GCC/EGCS versions had these files in gcc/objc/)

1 files changed, 105 insertions, 0 deletions

diff --git a/contrib/libobjc/objects.c b/contrib/libobjc/objects.c
new file mode 100644
index 0000000..df74b85
--- /dev/null
+++ b/contrib/libobjc/objects.c
@@ -0,0 +1,105 @@
+/* GNU Objective C Runtime class related functions
+   Copyright (C) 1993, 1995, 1996 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 "objc.h"
+#include "runtime.h"		/* the kitchen sink */
+
+#if OBJC_WITH_GC
+# include <gc.h>
+#endif
+
+id __objc_object_alloc(Class);
+id __objc_object_dispose(id);
+id __objc_object_copy(id);
+
+id (*_objc_object_alloc)(Class)   = __objc_object_alloc;   /* !T:SINGLE */ 
+id (*_objc_object_dispose)(id)    = __objc_object_dispose; /* !T:SINGLE */
+id (*_objc_object_copy)(id)       = __objc_object_copy;    /* !T:SINGLE */
+
+id
+class_create_instance(Class class)
+{
+  id new = nil;
+
+#if OBJC_WITH_GC
+  if (CLS_ISCLASS(class))
+    new = (id)GC_malloc_explicitly_typed (class->instance_size,
+					  class->gc_object_type);
+#else
+  if (CLS_ISCLASS(class))
+    new = (*_objc_object_alloc)(class);
+#endif
+
+  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
+        objc_free(object);
+    }
+  return nil;
+}
+
+id __objc_object_alloc(Class class)
+{
+  return (id)objc_malloc(class->instance_size);
+}
+
+id __objc_object_dispose(id object) 
+{
+  objc_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;
+}
+
+