runtime/objc.h

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
   7  * Reserved.  This file contains Original Code and/or Modifications of
   8  * Original Code as defined in and that are subject to the Apple Public
   9  * Source License Version 1.1 (the "License").  You may not use this file
  10  * except in compliance with the License.  Please obtain a copy of the
  11  * License at http://www.apple.com/publicsource and read it before using
  12  * this file.
  13  *
  14  * The Original Code and all software distributed under the License are
  15  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  16  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  17  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT.  Please see the
  19  * License for the specific language governing rights and limitations
  20  * under the License.
  21  *
  22  * @APPLE_LICENSE_HEADER_END@
  23  */
  24 /*
  25  *      objc.h
  26  *      Copyright 1988-1996, NeXT Software, Inc.
  27  */
  28
  29 #ifndef _OBJC_OBJC_H_
  30 #define _OBJC_OBJC_H_
  31
  32 #import <objc/objc-api.h>               // for OBJC_EXPORT
  33
  34 typedef struct objc_class *Class;
  35
  36 typedef struct objc_object {
  37         Class isa;
  38 } *id;
  39
  40 typedef struct objc_selector    *SEL;
  41 typedef id                      (*IMP)(id, SEL, ...);
  42 typedef char                    BOOL;
  43
  44 #define YES             (BOOL)1
  45 #define NO              (BOOL)0
  46
  47 #ifndef Nil
  48 #define Nil 0           /* id of Nil class */
  49 #endif
  50
  51 #ifndef nil
  52 #define nil 0           /* id of Nil instance */
  53 #endif
  54
  55
  56 #if !defined(STRICT_OPENSTEP)
  57
  58 typedef char *STR;
  59
  60 OBJC_EXPORT BOOL sel_isMapped(SEL sel);
  61 OBJC_EXPORT const char *sel_getName(SEL sel);
  62 OBJC_EXPORT SEL sel_getUid(const char *str);
  63 OBJC_EXPORT SEL sel_registerName(const char *str);
  64 OBJC_EXPORT const char *object_getClassName(id obj);
  65 OBJC_EXPORT void *object_getIndexedIvars(id obj);
  66
  67 #define ISSELECTOR(sel) sel_isMapped(sel)
  68 #define SELNAME(sel)    sel_getName(sel)
  69 #define SELUID(str)     sel_getUid(str)
  70 #define NAMEOF(obj)     object_getClassName(obj)
  71 #define IV(obj)         object_getIndexedIvars(obj)
  72
  73 #if defined(__osf__) && defined(__alpha__)
  74     typedef long arith_t;
  75     typedef unsigned long uarith_t;
  76     #define ARITH_SHIFT 32
  77 #else
  78     typedef int arith_t;
  79     typedef unsigned uarith_t;
  80     #define ARITH_SHIFT 16
  81 #endif
  82
  83 #endif  /* !STRICT_OPENSTEP */
  84
  85 #endif /* _OBJC_OBJC_H_ */