[apple/xnu.git] / EXTERNAL_HEADERS / Availability.h

/*
 * Copyright (c) 2007-2015 by Apple Inc.. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
 
#ifndef __AVAILABILITY__
#define __AVAILABILITY__
 /*     
    These macros are for use in OS header files. They enable function prototypes
    and Objective-C methods to be tagged with the OS version in which they
    were first available; and, if applicable, the OS version in which they 
    became deprecated.  
     
    The desktop Mac OS X and iOS each have different version numbers.
    The __OSX_AVAILABLE_STARTING() macro allows you to specify both the desktop
    and iOS version numbers.  For instance:
        __OSX_AVAILABLE_STARTING(__MAC_10_2,__IPHONE_2_0)
    means the function/method was first available on Mac OS X 10.2 on the desktop
    and first available in iOS 2.0 on the iPhone.
    
    If a function is available on one platform, but not the other a _NA (not
    applicable) parameter is used.  For instance:
            __OSX_AVAILABLE_STARTING(__MAC_10_3,__IPHONE_NA)
    means that the function/method was first available on Mac OS X 10.3, and it
    currently not implemented on the iPhone.

    At some point, a function/method may be deprecated.  That means Apple
    recommends applications stop using the function, either because there is a 
    better replacement or the functionality is being phased out.  Deprecated
    functions/methods can be tagged with a __OSX_AVAILABLE_BUT_DEPRECATED()
    macro which specifies the OS version where the function became available
    as well as the OS version in which it became deprecated.  For instance:
        __OSX_AVAILABLE_BUT_DEPRECATED(__MAC_10_0,__MAC_10_5,__IPHONE_NA,__IPHONE_NA)
    means that the function/method was introduced in Mac OS X 10.0, then
    became deprecated beginning in Mac OS X 10.5.  On iOS the function 
    has never been available.  
    
    For these macros to function properly, a program must specify the OS version range 
    it is targeting.  The min OS version is specified as an option to the compiler:
    -mmacosx-version-min=10.x when building for Mac OS X, and -miphoneos-version-min=y.z
    when building for the iPhone.  The upper bound for the OS version is rarely needed,
    but it can be set on the command line via: -D__MAC_OS_X_VERSION_MAX_ALLOWED=10x0 for
    Mac OS X and __IPHONE_OS_VERSION_MAX_ALLOWED = y0z00 for iOS.  
    
    Examples:

        A function available in Mac OS X 10.5 and later, but not on the phone:
        
            extern void mymacfunc() __OSX_AVAILABLE_STARTING(__MAC_10_5,__IPHONE_NA);


        An Objective-C method in Mac OS X 10.5 and later, but not on the phone:
        
            @interface MyClass : NSObject
            -(void) mymacmethod __OSX_AVAILABLE_STARTING(__MAC_10_5,__IPHONE_NA);
            @end

        
        An enum available on the phone, but not available on Mac OS X:
        
            #if __IPHONE_OS_VERSION_MIN_REQUIRED
                enum { myEnum = 1 };
            #endif
           Note: this works when targeting the Mac OS X platform because 
           __IPHONE_OS_VERSION_MIN_REQUIRED is undefined which evaluates to zero. 
        

        An enum with values added in different iPhoneOS versions:
		
			enum {
			    myX  = 1,	// Usable on iPhoneOS 2.1 and later
			    myY  = 2,	// Usable on iPhoneOS 3.0 and later
			    myZ  = 3,	// Usable on iPhoneOS 3.0 and later
				...
		      Note: you do not want to use #if with enumeration values
			  when a client needs to see all values at compile time
			  and use runtime logic to only use the viable values.
			  

    It is also possible to use the *_VERSION_MIN_REQUIRED in source code to make one
    source base that can be compiled to target a range of OS versions.  It is best
    to not use the _MAC_* and __IPHONE_* macros for comparisons, but rather their values.
    That is because you might get compiled on an old OS that does not define a later
    OS version macro, and in the C preprocessor undefined values evaluate to zero
    in expresssions, which could cause the #if expression to evaluate in an unexpected
    way.
    
        #ifdef __MAC_OS_X_VERSION_MIN_REQUIRED
            // code only compiled when targeting Mac OS X and not iPhone
            // note use of 1050 instead of __MAC_10_5
            #if __MAC_OS_X_VERSION_MIN_REQUIRED < 1050
                // code in here might run on pre-Leopard OS
            #else
                // code here can assume Leopard or later
            #endif
        #endif


*/

#define __MAC_10_0            1000
#define __MAC_10_1            1010
#define __MAC_10_2            1020
#define __MAC_10_3            1030
#define __MAC_10_4            1040
#define __MAC_10_5            1050
#define __MAC_10_6            1060
#define __MAC_10_7            1070
#define __MAC_10_8            1080
#define __MAC_10_9            1090
#define __MAC_10_10         101000
#define __MAC_10_10_2       101002
#define __MAC_10_10_3       101003
#define __MAC_10_11         101100
#define __MAC_10_12         101200
/* __MAC_NA is not defined to a value but is uses as a token by macros to indicate that the API is unavailable */

#define __IPHONE_2_0      20000
#define __IPHONE_2_1      20100
#define __IPHONE_2_2      20200
#define __IPHONE_3_0      30000
#define __IPHONE_3_1      30100
#define __IPHONE_3_2      30200
#define __IPHONE_4_0      40000
#define __IPHONE_4_1      40100
#define __IPHONE_4_2      40200
#define __IPHONE_4_3      40300
#define __IPHONE_5_0      50000
#define __IPHONE_5_1      50100
#define __IPHONE_6_0      60000
#define __IPHONE_6_1      60100
#define __IPHONE_7_0      70000
#define __IPHONE_7_1      70100
#define __IPHONE_8_0      80000
#define __IPHONE_8_1      80100
#define __IPHONE_8_2      80200
#define __IPHONE_8_3      80300
#define __IPHONE_8_4      80400
#define __IPHONE_9_0      90000
#define __IPHONE_9_1      90100
#define __IPHONE_9_2      90200
#define __IPHONE_10_0    100000
/* __IPHONE_NA is not defined to a value but is uses as a token by macros to indicate that the API is unavailable */

#define __TVOS_9_0        90000
#define __TVOS_9_2        90200
#define __TVOS_10_0      100000

#define __WATCHOS_1_0     10000
#define __WATCHOS_2_0     20000
#define __WATCHOS_3_0     30000

#include <AvailabilityInternal.h>

#ifdef __IPHONE_OS_VERSION_MIN_REQUIRED
    #define __OSX_AVAILABLE_STARTING(_osx, _ios) __AVAILABILITY_INTERNAL##_ios
    #define __OSX_AVAILABLE_BUT_DEPRECATED(_osxIntro, _osxDep, _iosIntro, _iosDep) \
                                                    __AVAILABILITY_INTERNAL##_iosIntro##_DEP##_iosDep
    #define __OSX_AVAILABLE_BUT_DEPRECATED_MSG(_osxIntro, _osxDep, _iosIntro, _iosDep, _msg) \
                                                    __AVAILABILITY_INTERNAL##_iosIntro##_DEP##_iosDep##_MSG(_msg)

#elif defined(__MAC_OS_X_VERSION_MIN_REQUIRED)
    #define __OSX_AVAILABLE_STARTING(_osx, _ios) __AVAILABILITY_INTERNAL##_osx
    #define __OSX_AVAILABLE_BUT_DEPRECATED(_osxIntro, _osxDep, _iosIntro, _iosDep) \
                                                    __AVAILABILITY_INTERNAL##_osxIntro##_DEP##_osxDep
    #define __OSX_AVAILABLE_BUT_DEPRECATED_MSG(_osxIntro, _osxDep, _iosIntro, _iosDep, _msg) \
                                                    __AVAILABILITY_INTERNAL##_osxIntro##_DEP##_osxDep##_MSG(_msg)

#else
    #define __OSX_AVAILABLE_STARTING(_osx, _ios)
    #define __OSX_AVAILABLE_BUT_DEPRECATED(_osxIntro, _osxDep, _iosIntro, _iosDep)
    #define __OSX_AVAILABLE_BUT_DEPRECATED_MSG(_osxIntro, _osxDep, _iosIntro, _iosDep, _msg)
#endif


#if defined(__has_feature)
  #if __has_feature(attribute_availability_with_message)
    #define __OS_AVAILABILITY(_target, _availability)            __attribute__((availability(_target,_availability)))
    #define __OS_AVAILABILITY_MSG(_target, _availability, _msg)  __attribute__((availability(_target,_availability,message=_msg)))
  #else
    #define __OS_AVAILABILITY(_target, _availability)
    #define __OS_AVAILABILITY_MSG(_target, _availability, _msg)
  #endif
#else
    #define __OS_AVAILABILITY(_target, _availability)
    #define __OS_AVAILABILITY_MSG(_target, _availability, _msg)
#endif


/* for use to document app extension usage */
#if defined(__has_feature)
  #if __has_feature(attribute_availability_app_extension)
    #define __OSX_EXTENSION_UNAVAILABLE(_msg)  __OS_AVAILABILITY_MSG(macosx_app_extension,unavailable,_msg)
    #define __IOS_EXTENSION_UNAVAILABLE(_msg)  __OS_AVAILABILITY_MSG(ios_app_extension,unavailable,_msg)
  #else
    #define __OSX_EXTENSION_UNAVAILABLE(_msg)
    #define __IOS_EXTENSION_UNAVAILABLE(_msg)
  #endif
#else
    #define __OSX_EXTENSION_UNAVAILABLE(_msg)
    #define __IOS_EXTENSION_UNAVAILABLE(_msg)
#endif

#define __OS_EXTENSION_UNAVAILABLE(_msg)  __OSX_EXTENSION_UNAVAILABLE(_msg) __IOS_EXTENSION_UNAVAILABLE(_msg)


/* for use marking APIs available info for Mac OSX */
#if defined(__has_feature)
  #if __has_attribute(availability)
    #define __OSX_UNAVAILABLE                    __OS_AVAILABILITY(macosx,unavailable)
    #define __OSX_AVAILABLE(_vers)               __OS_AVAILABILITY(macosx,introduced=_vers)
    #define __OSX_DEPRECATED(_start, _dep, _msg) __OSX_AVAILABLE(_start) __OS_AVAILABILITY_MSG(macosx,deprecated=_dep,_msg)
  #endif
#endif

#ifndef __OSX_UNAVAILABLE
  #define __OSX_UNAVAILABLE
#endif

#ifndef __OSX_AVAILABLE
  #define __OSX_AVAILABLE(_vers)
#endif

#ifndef __OSX_DEPRECATED
  #define __OSX_DEPRECATED(_start, _dep, _msg)
#endif


/* for use marking APIs available info for iOS */
#if defined(__has_feature)
  #if __has_attribute(availability)
    #define __IOS_UNAVAILABLE                    __OS_AVAILABILITY(ios,unavailable)
    #define __IOS_PROHIBITED                     __OS_AVAILABILITY(ios,unavailable)
    #define __IOS_AVAILABLE(_vers)               __OS_AVAILABILITY(ios,introduced=_vers)
    #define __IOS_DEPRECATED(_start, _dep, _msg) __IOS_AVAILABLE(_start) __OS_AVAILABILITY_MSG(ios,deprecated=_dep,_msg)
  #endif
#endif

#ifndef __IOS_UNAVAILABLE
  #define __IOS_UNAVAILABLE
#endif

#ifndef __IOS_PROHIBITED
  #define __IOS_PROHIBITED
#endif

#ifndef __IOS_AVAILABLE
  #define __IOS_AVAILABLE(_vers)
#endif

#ifndef __IOS_DEPRECATED
  #define __IOS_DEPRECATED(_start, _dep, _msg)
#endif


/* for use marking APIs available info for tvOS */
#if defined(__has_feature)
  #if __has_feature(attribute_availability_tvos)
    #define __TVOS_UNAVAILABLE                    __OS_AVAILABILITY(tvos,unavailable)
    #define __TVOS_PROHIBITED                     __OS_AVAILABILITY(tvos,unavailable)
    #define __TVOS_AVAILABLE(_vers)               __OS_AVAILABILITY(tvos,introduced=_vers)
    #define __TVOS_DEPRECATED(_start, _dep, _msg) __TVOS_AVAILABLE(_start) __OS_AVAILABILITY_MSG(tvos,deprecated=_dep,_msg)
  #endif
#endif

#ifndef __TVOS_UNAVAILABLE
  #define __TVOS_UNAVAILABLE
#endif

#ifndef __TVOS_PROHIBITED
  #define __TVOS_PROHIBITED
#endif

#ifndef __TVOS_AVAILABLE
  #define __TVOS_AVAILABLE(_vers)
#endif

#ifndef __TVOS_DEPRECATED
  #define __TVOS_DEPRECATED(_start, _dep, _msg)
#endif


/* for use marking APIs available info for Watch OS */
#if defined(__has_feature)
  #if __has_feature(attribute_availability_watchos)
    #define __WATCHOS_UNAVAILABLE                    __OS_AVAILABILITY(watchos,unavailable)
    #define __WATCHOS_PROHIBITED                     __OS_AVAILABILITY(watchos,unavailable)
    #define __WATCHOS_AVAILABLE(_vers)               __OS_AVAILABILITY(watchos,introduced=_vers)
    #define __WATCHOS_DEPRECATED(_start, _dep, _msg) __WATCHOS_AVAILABLE(_start) __OS_AVAILABILITY_MSG(watchos,deprecated=_dep,_msg)
  #endif
#endif

#ifndef __WATCHOS_UNAVAILABLE
  #define __WATCHOS_UNAVAILABLE
#endif

#ifndef __WATCHOS_PROHIBITED
  #define __WATCHOS_PROHIBITED
#endif

#ifndef __WATCHOS_AVAILABLE
  #define __WATCHOS_AVAILABLE(_vers)
#endif

#ifndef __WATCHOS_DEPRECATED
  #define __WATCHOS_DEPRECATED(_start, _dep, _msg)
#endif

#if __has_include(<AvailabilityProhibitedInternal.h>)
  #include <AvailabilityProhibitedInternal.h>
#endif

#endif /* __AVAILABILITY__ */
Commit	Line	Data
6d2010ae	1	/*
3e170ce0	2	* Copyright (c) 2007-2015 by Apple Inc.. All rights reserved.
6d2010ae A	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
	24	#ifndef __AVAILABILITY__
	25	#define __AVAILABILITY__
	26	/*
	27	These macros are for use in OS header files. They enable function prototypes
	28	and Objective-C methods to be tagged with the OS version in which they
	29	were first available; and, if applicable, the OS version in which they
	30	became deprecated.
	31
39236c6e	32	The desktop Mac OS X and iOS each have different version numbers.
6d2010ae	33	The __OSX_AVAILABLE_STARTING() macro allows you to specify both the desktop
39236c6e	34	and iOS version numbers. For instance:
6d2010ae A	35	__OSX_AVAILABLE_STARTING(__MAC_10_2,__IPHONE_2_0)
6d2010ae A	36	means the function/method was first available on Mac OS X 10.2 on the desktop
39236c6e	37	and first available in iOS 2.0 on the iPhone.
6d2010ae A	38
	39	If a function is available on one platform, but not the other a _NA (not
	40	applicable) parameter is used. For instance:
	41	__OSX_AVAILABLE_STARTING(__MAC_10_3,__IPHONE_NA)
	42	means that the function/method was first available on Mac OS X 10.3, and it
	43	currently not implemented on the iPhone.
	44
	45	At some point, a function/method may be deprecated. That means Apple
	46	recommends applications stop using the function, either because there is a
	47	better replacement or the functionality is being phased out. Deprecated
	48	functions/methods can be tagged with a __OSX_AVAILABLE_BUT_DEPRECATED()
	49	macro which specifies the OS version where the function became available
	50	as well as the OS version in which it became deprecated. For instance:
	51	__OSX_AVAILABLE_BUT_DEPRECATED(__MAC_10_0,__MAC_10_5,__IPHONE_NA,__IPHONE_NA)
	52	means that the function/method was introduced in Mac OS X 10.0, then
39236c6e	53	became deprecated beginning in Mac OS X 10.5. On iOS the function
6d2010ae A	54	has never been available.
	55
	56	For these macros to function properly, a program must specify the OS version range
	57	it is targeting. The min OS version is specified as an option to the compiler:
39236c6e	58	-mmacosx-version-min=10.x when building for Mac OS X, and -miphoneos-version-min=y.z
6d2010ae	59	when building for the iPhone. The upper bound for the OS version is rarely needed,
39236c6e A	60	but it can be set on the command line via: -D__MAC_OS_X_VERSION_MAX_ALLOWED=10x0 for
39236c6e A	61	Mac OS X and __IPHONE_OS_VERSION_MAX_ALLOWED = y0z00 for iOS.
6d2010ae A	62
	63	Examples:
	64
	65	A function available in Mac OS X 10.5 and later, but not on the phone:
	66
	67	extern void mymacfunc() __OSX_AVAILABLE_STARTING(__MAC_10_5,__IPHONE_NA);
	68
	69
	70	An Objective-C method in Mac OS X 10.5 and later, but not on the phone:
	71
	72	@interface MyClass : NSObject
	73	-(void) mymacmethod __OSX_AVAILABLE_STARTING(__MAC_10_5,__IPHONE_NA);
	74	@end
	75
	76
	77	An enum available on the phone, but not available on Mac OS X:
	78
	79	#if __IPHONE_OS_VERSION_MIN_REQUIRED
	80	enum { myEnum = 1 };
	81	#endif
	82	Note: this works when targeting the Mac OS X platform because
	83	__IPHONE_OS_VERSION_MIN_REQUIRED is undefined which evaluates to zero.
	84
	85
	86	An enum with values added in different iPhoneOS versions:
	87
	88	enum {
	89	myX = 1, // Usable on iPhoneOS 2.1 and later
	90	myY = 2, // Usable on iPhoneOS 3.0 and later
	91	myZ = 3, // Usable on iPhoneOS 3.0 and later
	92	...
	93	Note: you do not want to use #if with enumeration values
	94	when a client needs to see all values at compile time
	95	and use runtime logic to only use the viable values.
	96
	97
	98	It is also possible to use the *_VERSION_MIN_REQUIRED in source code to make one
	99	source base that can be compiled to target a range of OS versions. It is best
	100	to not use the _MAC_* and __IPHONE_* macros for comparisons, but rather their values.
	101	That is because you might get compiled on an old OS that does not define a later
	102	OS version macro, and in the C preprocessor undefined values evaluate to zero
	103	in expresssions, which could cause the #if expression to evaluate in an unexpected
	104	way.
	105
	106	#ifdef __MAC_OS_X_VERSION_MIN_REQUIRED
	107	// code only compiled when targeting Mac OS X and not iPhone
	108	// note use of 1050 instead of __MAC_10_5
	109	#if __MAC_OS_X_VERSION_MIN_REQUIRED < 1050
	110	// code in here might run on pre-Leopard OS
	111	#else
	112	// code here can assume Leopard or later
	113	#endif
	114	#endif
	115
	116
	117	*/
	118
fe8ab488 A	119	#define __MAC_10_0 1000
	120	#define __MAC_10_1 1010
	121	#define __MAC_10_2 1020
	122	#define __MAC_10_3 1030
	123	#define __MAC_10_4 1040
	124	#define __MAC_10_5 1050
	125	#define __MAC_10_6 1060
	126	#define __MAC_10_7 1070
	127	#define __MAC_10_8 1080
	128	#define __MAC_10_9 1090
	129	#define __MAC_10_10 101000
3e170ce0 A	130	#define __MAC_10_10_2 101002
	131	#define __MAC_10_10_3 101003
	132	#define __MAC_10_11 101100
39037602	133	#define __MAC_10_12 101200
fe8ab488	134	/* __MAC_NA is not defined to a value but is uses as a token by macros to indicate that the API is unavailable */
6d2010ae	135
39037602 A	136	#define __IPHONE_2_0 20000
	137	#define __IPHONE_2_1 20100
	138	#define __IPHONE_2_2 20200
	139	#define __IPHONE_3_0 30000
	140	#define __IPHONE_3_1 30100
	141	#define __IPHONE_3_2 30200
	142	#define __IPHONE_4_0 40000
	143	#define __IPHONE_4_1 40100
	144	#define __IPHONE_4_2 40200
	145	#define __IPHONE_4_3 40300
	146	#define __IPHONE_5_0 50000
	147	#define __IPHONE_5_1 50100
	148	#define __IPHONE_6_0 60000
	149	#define __IPHONE_6_1 60100
	150	#define __IPHONE_7_0 70000
	151	#define __IPHONE_7_1 70100
	152	#define __IPHONE_8_0 80000
	153	#define __IPHONE_8_1 80100
	154	#define __IPHONE_8_2 80200
	155	#define __IPHONE_8_3 80300
	156	#define __IPHONE_8_4 80400
	157	#define __IPHONE_9_0 90000
	158	#define __IPHONE_9_1 90100
	159	#define __IPHONE_9_2 90200
	160	#define __IPHONE_10_0 100000
fe8ab488	161	/* __IPHONE_NA is not defined to a value but is uses as a token by macros to indicate that the API is unavailable */
6d2010ae	162
39037602 A	163	#define __TVOS_9_0 90000
	164	#define __TVOS_9_2 90200
	165	#define __TVOS_10_0 100000
3e170ce0	166
39037602 A	167	#define __WATCHOS_1_0 10000
	168	#define __WATCHOS_2_0 20000
	169	#define __WATCHOS_3_0 30000
6d2010ae	170
3e170ce0	171	#include <AvailabilityInternal.h>
6d2010ae A	172
6d2010ae A	173	#ifdef __IPHONE_OS_VERSION_MIN_REQUIRED
316670eb A	174	#define __OSX_AVAILABLE_STARTING(_osx, _ios) __AVAILABILITY_INTERNAL##_ios
	175	#define __OSX_AVAILABLE_BUT_DEPRECATED(_osxIntro, _osxDep, _iosIntro, _iosDep) \
	176	__AVAILABILITY_INTERNAL##_iosIntro##_DEP##_iosDep
39236c6e A	177	#define __OSX_AVAILABLE_BUT_DEPRECATED_MSG(_osxIntro, _osxDep, _iosIntro, _iosDep, _msg) \
39236c6e A	178	__AVAILABILITY_INTERNAL##_iosIntro##_DEP##_iosDep##_MSG(_msg)
6d2010ae A	179
6d2010ae A	180	#elif defined(__MAC_OS_X_VERSION_MIN_REQUIRED)
316670eb A	181	#define __OSX_AVAILABLE_STARTING(_osx, _ios) __AVAILABILITY_INTERNAL##_osx
	182	#define __OSX_AVAILABLE_BUT_DEPRECATED(_osxIntro, _osxDep, _iosIntro, _iosDep) \
	183	__AVAILABILITY_INTERNAL##_osxIntro##_DEP##_osxDep
39236c6e A	184	#define __OSX_AVAILABLE_BUT_DEPRECATED_MSG(_osxIntro, _osxDep, _iosIntro, _iosDep, _msg) \
39236c6e A	185	__AVAILABILITY_INTERNAL##_osxIntro##_DEP##_osxDep##_MSG(_msg)
6d2010ae A	186
6d2010ae A	187	#else
316670eb	188	#define __OSX_AVAILABLE_STARTING(_osx, _ios)
39236c6e A	189	#define __OSX_AVAILABLE_BUT_DEPRECATED(_osxIntro, _osxDep, _iosIntro, _iosDep)
39236c6e A	190	#define __OSX_AVAILABLE_BUT_DEPRECATED_MSG(_osxIntro, _osxDep, _iosIntro, _iosDep, _msg)
6d2010ae A	191	#endif
	192
	193
3e170ce0 A	194	#if defined(__has_feature)
	195	#if __has_feature(attribute_availability_with_message)
	196	#define __OS_AVAILABILITY(_target, _availability) __attribute__((availability(_target,_availability)))
	197	#define __OS_AVAILABILITY_MSG(_target, _availability, _msg) __attribute__((availability(_target,_availability,message=_msg)))
	198	#else
	199	#define __OS_AVAILABILITY(_target, _availability)
	200	#define __OS_AVAILABILITY_MSG(_target, _availability, _msg)
	201	#endif
	202	#else
	203	#define __OS_AVAILABILITY(_target, _availability)
	204	#define __OS_AVAILABILITY_MSG(_target, _availability, _msg)
	205	#endif
	206
	207
	208	/* for use to document app extension usage */
	209	#if defined(__has_feature)
	210	#if __has_feature(attribute_availability_app_extension)
	211	#define __OSX_EXTENSION_UNAVAILABLE(_msg) __OS_AVAILABILITY_MSG(macosx_app_extension,unavailable,_msg)
	212	#define __IOS_EXTENSION_UNAVAILABLE(_msg) __OS_AVAILABILITY_MSG(ios_app_extension,unavailable,_msg)
	213	#else
	214	#define __OSX_EXTENSION_UNAVAILABLE(_msg)
	215	#define __IOS_EXTENSION_UNAVAILABLE(_msg)
	216	#endif
	217	#else
	218	#define __OSX_EXTENSION_UNAVAILABLE(_msg)
	219	#define __IOS_EXTENSION_UNAVAILABLE(_msg)
	220	#endif
	221
	222	#define __OS_EXTENSION_UNAVAILABLE(_msg) __OSX_EXTENSION_UNAVAILABLE(_msg) __IOS_EXTENSION_UNAVAILABLE(_msg)
	223
	224
	225
	226	/* for use marking APIs available info for Mac OSX */
	227	#if defined(__has_feature)
	228	#if __has_attribute(availability)
	229	#define __OSX_UNAVAILABLE __OS_AVAILABILITY(macosx,unavailable)
	230	#define __OSX_AVAILABLE(_vers) __OS_AVAILABILITY(macosx,introduced=_vers)
	231	#define __OSX_DEPRECATED(_start, _dep, _msg) __OSX_AVAILABLE(_start) __OS_AVAILABILITY_MSG(macosx,deprecated=_dep,_msg)
	232	#endif
	233	#endif
	234
	235	#ifndef __OSX_UNAVAILABLE
	236	#define __OSX_UNAVAILABLE
	237	#endif
	238
	239	#ifndef __OSX_AVAILABLE
	240	#define __OSX_AVAILABLE(_vers)
	241	#endif
	242
	243	#ifndef __OSX_DEPRECATED
	244	#define __OSX_DEPRECATED(_start, _dep, _msg)
	245	#endif
	246
	247
	248	/* for use marking APIs available info for iOS */
	249	#if defined(__has_feature)
	250	#if __has_attribute(availability)
	251	#define __IOS_UNAVAILABLE __OS_AVAILABILITY(ios,unavailable)
	252	#define __IOS_PROHIBITED __OS_AVAILABILITY(ios,unavailable)
	253	#define __IOS_AVAILABLE(_vers) __OS_AVAILABILITY(ios,introduced=_vers)
	254	#define __IOS_DEPRECATED(_start, _dep, _msg) __IOS_AVAILABLE(_start) __OS_AVAILABILITY_MSG(ios,deprecated=_dep,_msg)
	255	#endif
	256	#endif
	257
258	#ifndef __IOS_UNAVAILABLE
259	#define __IOS_UNAVAILABLE
260	#endif
261
262	#ifndef __IOS_PROHIBITED
263	#define __IOS_PROHIBITED
264	#endif
265
266	#ifndef __IOS_AVAILABLE
267	#define __IOS_AVAILABLE(_vers)
268	#endif
269
270	#ifndef __IOS_DEPRECATED
271	#define __IOS_DEPRECATED(_start, _dep, _msg)
272	#endif
273
274
275	/* for use marking APIs available info for tvOS */
276	#if defined(__has_feature)
277	#if __has_feature(attribute_availability_tvos)
278	#define __TVOS_UNAVAILABLE __OS_AVAILABILITY(tvos,unavailable)
279	#define __TVOS_PROHIBITED __OS_AVAILABILITY(tvos,unavailable)
280	#define __TVOS_AVAILABLE(_vers) __OS_AVAILABILITY(tvos,introduced=_vers)
281	#define __TVOS_DEPRECATED(_start, _dep, _msg) __TVOS_AVAILABLE(_start) __OS_AVAILABILITY_MSG(tvos,deprecated=_dep,_msg)
282	#endif
283	#endif
284
285	#ifndef __TVOS_UNAVAILABLE
286	#define __TVOS_UNAVAILABLE
287	#endif
288
289	#ifndef __TVOS_PROHIBITED
290	#define __TVOS_PROHIBITED
291	#endif
292
293	#ifndef __TVOS_AVAILABLE
294	#define __TVOS_AVAILABLE(_vers)
295	#endif
296
297	#ifndef __TVOS_DEPRECATED
298	#define __TVOS_DEPRECATED(_start, _dep, _msg)
299	#endif
300
301
302	/* for use marking APIs available info for Watch OS */
303	#if defined(__has_feature)
304	#if __has_feature(attribute_availability_watchos)
305	#define __WATCHOS_UNAVAILABLE __OS_AVAILABILITY(watchos,unavailable)
306	#define __WATCHOS_PROHIBITED __OS_AVAILABILITY(watchos,unavailable)
307	#define __WATCHOS_AVAILABLE(_vers) __OS_AVAILABILITY(watchos,introduced=_vers)
308	#define __WATCHOS_DEPRECATED(_start, _dep, _msg) __WATCHOS_AVAILABLE(_start) __OS_AVAILABILITY_MSG(watchos,deprecated=_dep,_msg)
309	#endif
310	#endif
311
312	#ifndef __WATCHOS_UNAVAILABLE
313	#define __WATCHOS_UNAVAILABLE
314	#endif
315
316	#ifndef __WATCHOS_PROHIBITED
317	#define __WATCHOS_PROHIBITED
318	#endif
319
320	#ifndef __WATCHOS_AVAILABLE
321	#define __WATCHOS_AVAILABLE(_vers)
322	#endif
323
324	#ifndef __WATCHOS_DEPRECATED
325	#define __WATCHOS_DEPRECATED(_start, _dep, _msg)
326	#endif
327
39037602 A	328	#if __has_include(<AvailabilityProhibitedInternal.h>)
	329	#include <AvailabilityProhibitedInternal.h>
	330	#endif
3e170ce0	331
6d2010ae	332	#endif /* __AVAILABILITY__ */