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Annotation of gcc/objc/objects.c, revision 1.1.1.1

1.1       root        1: /* GNU Objective C Runtime class related functions
                      2:    Copyright (C) 1993 Free Software Foundation, Inc.
                      3: 
                      4: Author: Kresten Krab Thorup
                      5: 
                      6: This file is part of GNU CC.
                      7: 
                      8: GNU CC is free software; you can redistribute it and/or modify it under the
                      9:    terms of the GNU General Public License as published by the Free Software
                     10:    Foundation; either version 2, or (at your option) any later version.
                     11: 
                     12: GNU CC is distributed in the hope that it will be useful, but WITHOUT ANY
                     13:    WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
                     14:    FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
                     15:    details.
                     16: 
                     17: You should have received a copy of the GNU General Public License along with
                     18:    GNU CC; see the file COPYING.  If not, write to the Free Software
                     19:    Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
                     20: 
                     21: /* As a special exception, if you link this library with files compiled with
                     22:    GCC to produce an executable, this does not cause the resulting executable
                     23:    to be covered by the GNU General Public License. This exception does not
                     24:    however invalidate any other reasons why the executable file might be
                     25:    covered by the GNU General Public License.  */
                     26: 
                     27: #include "runtime.h"           /* the kitchen sink */
                     28: 
                     29: id __objc_object_alloc(Class*);
                     30: id __objc_object_dispose(id);
                     31: id __objc_object_copy(id);
                     32: 
                     33: id (*_objc_object_alloc)(Class*) = __objc_object_alloc;
                     34: id (*_objc_object_dispose)(id)    = __objc_object_dispose;
                     35: id (*_objc_object_copy)(id)       = __objc_object_copy;
                     36: 
                     37: id
                     38: class_create_instance(Class* class)
                     39: {
                     40:   id new = nil;
                     41:   if (CLS_ISCLASS(class))
                     42:     new = (*_objc_object_alloc)(class);
                     43:   if (new!=nil)
                     44:     {
                     45:       bzero (new, class->instance_size);
                     46:       new->class_pointer = class;
                     47:     }
                     48:   return new;
                     49: }
                     50: 
                     51: id
                     52: object_copy(id object)
                     53: {
                     54:   if ((object!=nil)&&CLS_ISCLASS(object->class_pointer))
                     55:     return (*_objc_object_copy)(object);
                     56:   else
                     57:     return nil;
                     58: }
                     59: 
                     60: id
                     61: object_dispose(id object)
                     62: {
                     63:   if ((object!=nil)&&CLS_ISCLASS(object->class_pointer))
                     64:     {
                     65:       if (_objc_object_dispose)
                     66:         (*_objc_object_dispose)(object);
                     67:       else
                     68:         free(object);
                     69:     }
                     70:   return nil;
                     71: }
                     72: 
                     73: id __objc_object_alloc(Class* class)
                     74: {
                     75:   return (id)__objc_xmalloc(class->instance_size);
                     76: }
                     77: 
                     78: id __objc_object_dispose(id object) 
                     79: {
                     80:   free(object);
                     81:   return 0;
                     82: }
                     83: 
                     84: id __objc_object_copy(id object)
                     85: {
                     86:   id copy = class_create_instance(object->class_pointer);
                     87:   memcpy(copy, object, object->class_pointer->instance_size);
                     88:   return copy;
                     89: }
                     90: 
                     91: 

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