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 #include <TargetConditionals.h>
  30
  31 /*
  32  * OBJC_API_VERSION 0 or undef: Tiger and earlier API only
  33  * OBJC_API_VERSION 2: Leopard and later API available
  34  */
  35 #if !defined(OBJC_API_VERSION)
  36 #   if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5
  37 #       define OBJC_API_VERSION 0
  38 #   else
  39 #       define OBJC_API_VERSION 2
  40 #   endif
  41 #endif
  42
  43 /* OBJC2_UNAVAILABLE: unavailable in objc 2.0, deprecated in Leopard */
  44 #if !defined(OBJC2_UNAVAILABLE)
  45 #   if __OBJC2__
  46 #       define OBJC2_UNAVAILABLE UNAVAILABLE_ATTRIBUTE
  47 #   else
  48 #       define OBJC2_UNAVAILABLE DEPRECATED_IN_MAC_OS_X_VERSION_10_5_AND_LATER
  49 #   endif
  50 #endif
  51
  52 #if !defined(OBJC_EXTERN)
  53 #   if defined(__cplusplus)
  54 #       define OBJC_EXTERN extern "C"
  55 #   else
  56 #       define OBJC_EXTERN extern
  57 #   endif
  58 #endif
  59
  60 #if !defined(OBJC_EXPORT)
  61 #   if TARGET_OS_WIN32
  62 #       if defined(BUILDING_OBJC)
  63 #           define OBJC_EXPORT OBJC_EXTERN __declspec(dllexport)
  64 #       else
  65 #           define OBJC_EXPORT OBJC_EXTERN __declspec(dllimport)
  66 #       endif
  67 #   else
  68 #       define OBJC_EXPORT OBJC_EXTERN
  69 #   endif
  70 #endif
  71
  72 #if !defined(OBJC_IMPORT)
  73 #   define OBJC_IMPORT extern
  74 #endif
  75
  76 #ifndef __DARWIN_NULL
  77 #define __DARWIN_NULL NULL
  78 #endif
  79
  80 #if !defined(OBJC_INLINE)
  81 #   define OBJC_INLINE __inline
  82 #endif
  83
  84 #endif