runtime/objc-api.h

   1 /*
   2  * Copyright (c) 1999-2006 Apple Inc.  All Rights Reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23 // Copyright 1988-1996 NeXT Software, Inc.
  24
  25 #ifndef _OBJC_OBJC_API_H_
  26 #define _OBJC_OBJC_API_H_
  27
  28 #include <AvailabilityMacros.h>
  29
  30 /*
  31  * OBJC_API_VERSION 0 or undef: Tiger and earlier API only
  32  * OBJC_API_VERSION 2: Leopard and later API available
  33  */
  34 #if !defined(OBJC_API_VERSION)
  35 #   if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5
  36 #       define OBJC_API_VERSION 0
  37 #   else
  38 #       define OBJC_API_VERSION 2
  39 #   endif
  40 #endif
  41
  42 /* OBJC2_UNAVAILABLE: unavailable in objc 2.0, deprecated in Leopard */
  43 #if !defined(OBJC2_UNAVAILABLE)
  44 #   if __OBJC2__
  45 #       define OBJC2_UNAVAILABLE UNAVAILABLE_ATTRIBUTE
  46 #   else
  47 #       define OBJC2_UNAVAILABLE DEPRECATED_IN_MAC_OS_X_VERSION_10_5_AND_LATER
  48 #   endif
  49 #endif
  50
  51 #if !defined(OBJC_EXPORT)
  52 #   if defined(__cplusplus)
  53 #       define OBJC_EXPORT extern "C"
  54 #   else
  55 #       define OBJC_EXPORT extern
  56 #   endif
  57 #endif
  58
  59 #if !defined(OBJC_IMPORT)
  60 #   define OBJC_IMPORT extern
  61 #endif
  62
  63 #endif