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author | Ben Elliston <bje@cygnus.com> | 1998-09-21 01:22:07 +0000 |
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committer | Ben Elliston <bje@gcc.gnu.org> | 1998-09-21 11:22:07 +1000 |
commit | 88e17b57eb71b79759e59d68883ce797d00488fb (patch) | |
tree | 74295f11944f5c930aca90bb544749afb89e227c /libobjc/objects.c | |
parent | 2325c774f8fdb0cabad328aba994a8224bb1c021 (diff) | |
download | gcc-88e17b57eb71b79759e59d68883ce797d00488fb.zip gcc-88e17b57eb71b79759e59d68883ce797d00488fb.tar.gz gcc-88e17b57eb71b79759e59d68883ce797d00488fb.tar.bz2 |
1998-09-21 Ben Elliston <bje@cygnus.com>
* New directory. Moved files from ../gcc/objc.
From-SVN: r22514
Diffstat (limited to 'libobjc/objects.c')
-rw-r--r-- | libobjc/objects.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/libobjc/objects.c b/libobjc/objects.c new file mode 100644 index 0000000..d079c5d --- /dev/null +++ b/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; +} + + |