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Ticket #48471: Availability.h

File Availability.h, 12.4 KB (added by MichaelB7 (Michael Byrne), 9 years ago)
patched Availability.h - just copy and paste into usr/include/ - you need to turn off SIP, sudo privileges required

Line
1	/*
2	* Copyright (c) 2007-2015 by 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
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
32	The desktop Mac OS X and iOS each have different version numbers.
33	The __OSX_AVAILABLE_STARTING() macro allows you to specify both the desktop
34	and iOS version numbers. For instance:
35	__OSX_AVAILABLE_STARTING(__MAC_10_2,__IPHONE_2_0)
36	means the function/method was first available on Mac OS X 10.2 on the desktop
37	and first available in iOS 2.0 on the iPhone.
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
53	became deprecated beginning in Mac OS X 10.5. On iOS the function
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:
58	-mmacosx-version-min=10.x when building for Mac OS X, and -miphoneos-version-min=y.z
59	when building for the iPhone. The upper bound for the OS version is rarely needed,
60	but it can be set on the command line via: -D__MAC_OS_X_VERSION_MAX_ALLOWED=10x0 for
61	Mac OS X and __IPHONE_OS_VERSION_MAX_ALLOWED = y0z00 for iOS.
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
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
130	#define __MAC_10_10_2 101002
131	#define __MAC_10_10_3 101003
132	#define __MAC_10_11 101100
133	#define __MAC_10_11_2 101102
134	/* __MAC_NA is not defined to a value but is uses as a token by macros to indicate that the API is unavailable */
135
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	/* __IPHONE_NA is not defined to a value but is uses as a token by macros to indicate that the API is unavailable */
161
162	#define __TVOS_9_0 90000
163	#define __TVOS_9_1 90100
164
165	#define __WATCHOS_1_0 10000
166	#define __WATCHOS_2_0 20000
167
168	#include <AvailabilityInternal.h>
169
170	#ifdef __IPHONE_OS_VERSION_MIN_REQUIRED
171	#define __OSX_AVAILABLE_STARTING(_osx, _ios) __AVAILABILITY_INTERNAL##_ios
172	#define __OSX_AVAILABLE_BUT_DEPRECATED(_osxIntro, _osxDep, _iosIntro, _iosDep) \
173	__AVAILABILITY_INTERNAL##_iosIntro##_DEP##_iosDep
174	#define __OSX_AVAILABLE_BUT_DEPRECATED_MSG(_osxIntro, _osxDep, _iosIntro, _iosDep, _msg) \
175	__AVAILABILITY_INTERNAL##_iosIntro##_DEP##_iosDep##_MSG(_msg)
176
177	#elif defined(__MAC_OS_X_VERSION_MIN_REQUIRED)
178	#define __OSX_AVAILABLE_STARTING(_osx, _ios) __AVAILABILITY_INTERNAL##_osx
179	#define __OSX_AVAILABLE_BUT_DEPRECATED(_osxIntro, _osxDep, _iosIntro, _iosDep) \
180	__AVAILABILITY_INTERNAL##_osxIntro##_DEP##_osxDep
181	#define __OSX_AVAILABLE_BUT_DEPRECATED_MSG(_osxIntro, _osxDep, _iosIntro, _iosDep, _msg) \
182	__AVAILABILITY_INTERNAL##_osxIntro##_DEP##_osxDep##_MSG(_msg)
183
184	#else
185	#define __OSX_AVAILABLE_STARTING(_osx, _ios)
186	#define __OSX_AVAILABLE_BUT_DEPRECATED(_osxIntro, _osxDep, _iosIntro, _iosDep)
187	#define __OSX_AVAILABLE_BUT_DEPRECATED_MSG(_osxIntro, _osxDep, _iosIntro, _iosDep, _msg)
188	#endif
189
190
191	#if defined(__has_feature)
192	#if __has_feature(attribute_availability_with_message)
193	#define __OS_AVAILABILITY(_target, _availability) __attribute__((availability(_target,_availability)))
194	#define __OS_AVAILABILITY_MSG(_target, _availability, _msg) __attribute__((availability(_target,_availability,message=_msg)))
195	#else
196	#define __OS_AVAILABILITY(_target, _availability)
197	#define __OS_AVAILABILITY_MSG(_target, _availability, _msg)
198	#endif
199	#else
200	#define __OS_AVAILABILITY(_target, _availability)
201	#define __OS_AVAILABILITY_MSG(_target, _availability, _msg)
202	#endif
203
204
205	/* for use to document app extension usage */
206	#if defined(__has_feature)
207	#if __has_feature(attribute_availability_app_extension)
208	#define __OSX_EXTENSION_UNAVAILABLE(_msg) __OS_AVAILABILITY_MSG(macosx_app_extension,unavailable,_msg)
209	#define __IOS_EXTENSION_UNAVAILABLE(_msg) __OS_AVAILABILITY_MSG(ios_app_extension,unavailable,_msg)
210	#else
211	#define __OSX_EXTENSION_UNAVAILABLE(_msg)
212	#define __IOS_EXTENSION_UNAVAILABLE(_msg)
213	#endif
214	#else
215	#define __OSX_EXTENSION_UNAVAILABLE(_msg)
216	#define __IOS_EXTENSION_UNAVAILABLE(_msg)
217	#endif
218
219	#define __OS_EXTENSION_UNAVAILABLE(_msg) __OSX_EXTENSION_UNAVAILABLE(_msg) __IOS_EXTENSION_UNAVAILABLE(_msg)
220
221
222
223	/* for use marking APIs available info for Mac OSX */
224	#if defined(__has_attribute)
225	#if __has_attribute(availability)
226	#define __OSX_UNAVAILABLE __OS_AVAILABILITY(macosx,unavailable)
227	#define __OSX_AVAILABLE(_vers) __OS_AVAILABILITY(macosx,introduced=_vers)
228	#define __OSX_DEPRECATED(_start, _dep, _msg) __OSX_AVAILABLE(_start) __OS_AVAILABILITY_MSG(macosx,deprecated=_dep,_msg)
229	#endif
230	#endif
231
232	#ifndef __OSX_UNAVAILABLE
233	#define __OSX_UNAVAILABLE
234	#endif
235
236	#ifndef __OSX_AVAILABLE
237	#define __OSX_AVAILABLE(_vers)
238	#endif
239
240	#ifndef __OSX_DEPRECATED
241	#define __OSX_DEPRECATED(_start, _dep, _msg)
242	#endif
243
244
245	/* for use marking APIs available info for iOS */
246	#if defined(__has_attribute)
247	#if __has_attribute(availability)
248	#define __IOS_UNAVAILABLE __OS_AVAILABILITY(ios,unavailable)
249	#define __IOS_PROHIBITED __OS_AVAILABILITY(ios,unavailable)
250	#define __IOS_AVAILABLE(_vers) __OS_AVAILABILITY(ios,introduced=_vers)
251	#define __IOS_DEPRECATED(_start, _dep, _msg) __IOS_AVAILABLE(_start) __OS_AVAILABILITY_MSG(ios,deprecated=_dep,_msg)
252	#endif
253	#endif
254
255	#ifndef __IOS_UNAVAILABLE
256	#define __IOS_UNAVAILABLE
257	#endif
258
259	#ifndef __IOS_PROHIBITED
260	#define __IOS_PROHIBITED
261	#endif
262
263	#ifndef __IOS_AVAILABLE
264	#define __IOS_AVAILABLE(_vers)
265	#endif
266
267	#ifndef __IOS_DEPRECATED
268	#define __IOS_DEPRECATED(_start, _dep, _msg)
269	#endif
270
271
272	/* for use marking APIs available info for tvOS */
273	#if defined(__has_feature)
274	#if __has_feature(attribute_availability_tvos)
275	#define __TVOS_UNAVAILABLE __OS_AVAILABILITY(tvos,unavailable)
276	#define __TVOS_PROHIBITED __OS_AVAILABILITY(tvos,unavailable)
277	#define __TVOS_AVAILABLE(_vers) __OS_AVAILABILITY(tvos,introduced=_vers)
278	#define __TVOS_DEPRECATED(_start, _dep, _msg) __TVOS_AVAILABLE(_start) __OS_AVAILABILITY_MSG(tvos,deprecated=_dep,_msg)
279	#endif
280	#endif
281
282	#ifndef __TVOS_UNAVAILABLE
283	#define __TVOS_UNAVAILABLE
284	#endif
285
286	#ifndef __TVOS_PROHIBITED
287	#define __TVOS_PROHIBITED
288	#endif
289
290	#ifndef __TVOS_AVAILABLE
291	#define __TVOS_AVAILABLE(_vers)
292	#endif
293
294	#ifndef __TVOS_DEPRECATED
295	#define __TVOS_DEPRECATED(_start, _dep, _msg)
296	#endif
297
298
299	/* for use marking APIs available info for Watch OS */
300	#if defined(__has_feature)
301	#if __has_feature(attribute_availability_watchos)
302	#define __WATCHOS_UNAVAILABLE __OS_AVAILABILITY(watchos,unavailable)
303	#define __WATCHOS_PROHIBITED __OS_AVAILABILITY(watchos,unavailable)
304	#define __WATCHOS_AVAILABLE(_vers) __OS_AVAILABILITY(watchos,introduced=_vers)
305	#define __WATCHOS_DEPRECATED(_start, _dep, _msg) __WATCHOS_AVAILABLE(_start) __OS_AVAILABILITY_MSG(watchos,deprecated=_dep,_msg)
306	#endif
307	#endif
308
309	#ifndef __WATCHOS_UNAVAILABLE
310	#define __WATCHOS_UNAVAILABLE
311	#endif
312
313	#ifndef __WATCHOS_PROHIBITED
314	#define __WATCHOS_PROHIBITED
315	#endif
316
317	#ifndef __WATCHOS_AVAILABLE
318	#define __WATCHOS_AVAILABLE(_vers)
319	#endif
320
321	#ifndef __WATCHOS_DEPRECATED
322	#define __WATCHOS_DEPRECATED(_start, _dep, _msg)
323	#endif
324
325
326	#endif /* __AVAILABILITY__ */

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