aboutsummaryrefslogtreecommitdiff
path: root/src/common/mac/GTMDefines.h
blob: 04fcf6d0c4966463064b30bfab987c103defa7a8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
//
// GTMDefines.h
//
//  Copyright 2008 Google Inc.
//
//  Licensed under the Apache License, Version 2.0 (the "License"); you may not
//  use this file except in compliance with the License.  You may obtain a copy
//  of the License at
//
//  http://www.apache.org/licenses/LICENSE-2.0
//
//  Unless required by applicable law or agreed to in writing, software
//  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
//  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
//  License for the specific language governing permissions and limitations under
//  the License.
//

// ============================================================================

#include <AvailabilityMacros.h>
#include <TargetConditionals.h>

#ifdef __OBJC__
#include <Foundation/NSObjCRuntime.h>
#endif  // __OBJC__

#if TARGET_OS_IPHONE
#include <Availability.h>
#endif  // TARGET_OS_IPHONE

// Not all MAC_OS_X_VERSION_10_X macros defined in past SDKs
#ifndef MAC_OS_X_VERSION_10_5
  #define MAC_OS_X_VERSION_10_5 1050
#endif
#ifndef MAC_OS_X_VERSION_10_6
  #define MAC_OS_X_VERSION_10_6 1060
#endif
#ifndef MAC_OS_X_VERSION_10_7
  #define MAC_OS_X_VERSION_10_7 1070
#endif

// Not all __IPHONE_X macros defined in past SDKs
#ifndef __IPHONE_3_0
  #define __IPHONE_3_0 30000
#endif
#ifndef __IPHONE_3_1
  #define __IPHONE_3_1 30100
#endif
#ifndef __IPHONE_3_2
  #define __IPHONE_3_2 30200
#endif
#ifndef __IPHONE_4_0
  #define __IPHONE_4_0 40000
#endif
#ifndef __IPHONE_4_3
  #define __IPHONE_4_3 40300
#endif
#ifndef __IPHONE_5_0
  #define __IPHONE_5_0 50000
#endif

// ----------------------------------------------------------------------------
// CPP symbols that can be overridden in a prefix to control how the toolbox
// is compiled.
// ----------------------------------------------------------------------------


// By setting the GTM_CONTAINERS_VALIDATION_FAILED_LOG and
// GTM_CONTAINERS_VALIDATION_FAILED_ASSERT macros you can control what happens
// when a validation fails. If you implement your own validators, you may want
// to control their internals using the same macros for consistency.
#ifndef GTM_CONTAINERS_VALIDATION_FAILED_ASSERT
  #define GTM_CONTAINERS_VALIDATION_FAILED_ASSERT 0
#endif

// Give ourselves a consistent way to do inlines.  Apple's macros even use
// a few different actual definitions, so we're based off of the foundation
// one.
#if !defined(GTM_INLINE)
  #if (defined (__GNUC__) && (__GNUC__ == 4)) || defined (__clang__)
    #define GTM_INLINE static __inline__ __attribute__((always_inline))
  #else
    #define GTM_INLINE static __inline__
  #endif
#endif

// Give ourselves a consistent way of doing externs that links up nicely
// when mixing objc and objc++
#if !defined (GTM_EXTERN)
  #if defined __cplusplus
    #define GTM_EXTERN extern "C"
    #define GTM_EXTERN_C_BEGIN extern "C" {
    #define GTM_EXTERN_C_END }
  #else
    #define GTM_EXTERN extern
    #define GTM_EXTERN_C_BEGIN
    #define GTM_EXTERN_C_END
  #endif
#endif

// Give ourselves a consistent way of exporting things if we have visibility
// set to hidden.
#if !defined (GTM_EXPORT)
  #define GTM_EXPORT __attribute__((visibility("default")))
#endif

// Give ourselves a consistent way of declaring something as unused. This
// doesn't use __unused because that is only supported in gcc 4.2 and greater.
#if !defined (GTM_UNUSED)
#define GTM_UNUSED(x) ((void)(x))
#endif

// _GTMDevLog & _GTMDevAssert
//
// _GTMDevLog & _GTMDevAssert are meant to be a very lightweight shell for
// developer level errors.  This implementation simply macros to NSLog/NSAssert.
// It is not intended to be a general logging/reporting system.
//
// Please see https://github.com/google/google-toolbox-for-mac/wiki/DevLogNAssert
// for a little more background on the usage of these macros.
//
//    _GTMDevLog           log some error/problem in debug builds
//    _GTMDevAssert        assert if conditon isn't met w/in a method/function
//                           in all builds.
//
// To replace this system, just provide different macro definitions in your
// prefix header.  Remember, any implementation you provide *must* be thread
// safe since this could be called by anything in what ever situtation it has
// been placed in.
//

// We only define the simple macros if nothing else has defined this.
#ifndef _GTMDevLog

#ifdef DEBUG
  #define _GTMDevLog(...) NSLog(__VA_ARGS__)
#else
  #define _GTMDevLog(...) do { } while (0)
#endif

#endif // _GTMDevLog

#ifndef _GTMDevAssert
// we directly invoke the NSAssert handler so we can pass on the varargs
// (NSAssert doesn't have a macro we can use that takes varargs)
#if !defined(NS_BLOCK_ASSERTIONS)
  #define _GTMDevAssert(condition, ...)                                       \
    do {                                                                      \
      if (!(condition)) {                                                     \
        [[NSAssertionHandler currentHandler]                                  \
            handleFailureInFunction:[NSString stringWithUTF8String:__PRETTY_FUNCTION__] \
                               file:[NSString stringWithUTF8String:__FILE__]  \
                         lineNumber:__LINE__                                  \
                        description:__VA_ARGS__];                             \
      }                                                                       \
    } while(0)
#else // !defined(NS_BLOCK_ASSERTIONS)
  #define _GTMDevAssert(condition, ...) do { } while (0)
#endif // !defined(NS_BLOCK_ASSERTIONS)

#endif // _GTMDevAssert

// _GTMCompileAssert
// _GTMCompileAssert is an assert that is meant to fire at compile time if you
// want to check things at compile instead of runtime. For example if you
// want to check that a wchar is 4 bytes instead of 2 you would use
// _GTMCompileAssert(sizeof(wchar_t) == 4, wchar_t_is_4_bytes_on_OS_X)
// Note that the second "arg" is not in quotes, and must be a valid processor
// symbol in it's own right (no spaces, punctuation etc).

// Wrapping this in an #ifndef allows external groups to define their own
// compile time assert scheme.
#ifndef _GTMCompileAssert
  // We got this technique from here:
  // http://unixjunkie.blogspot.com/2007/10/better-compile-time-asserts_29.html

  #define _GTMCompileAssertSymbolInner(line, msg) _GTMCOMPILEASSERT ## line ## __ ## msg
  #define _GTMCompileAssertSymbol(line, msg) _GTMCompileAssertSymbolInner(line, msg)
  #define _GTMCompileAssert(test, msg) \
    typedef char _GTMCompileAssertSymbol(__LINE__, msg) [ ((test) ? 1 : -1) ]
#endif // _GTMCompileAssert

// ----------------------------------------------------------------------------
// CPP symbols defined based on the project settings so the GTM code has
// simple things to test against w/o scattering the knowledge of project
// setting through all the code.
// ----------------------------------------------------------------------------

// Provide a single constant CPP symbol that all of GTM uses for ifdefing
// iPhone code.
#if TARGET_OS_IPHONE // iPhone SDK
  // For iPhone specific stuff
  #define GTM_IPHONE_SDK 1
  #if TARGET_IPHONE_SIMULATOR
    #define GTM_IPHONE_DEVICE 0
    #define GTM_IPHONE_SIMULATOR 1
  #else
    #define GTM_IPHONE_DEVICE 1
    #define GTM_IPHONE_SIMULATOR 0
  #endif  // TARGET_IPHONE_SIMULATOR
  // By default, GTM has provided it's own unittesting support, define this
  // to use the support provided by Xcode, especially for the Xcode4 support
  // for unittesting.
  #ifndef GTM_IPHONE_USE_SENTEST
    #define GTM_IPHONE_USE_SENTEST 0
  #endif
  #define GTM_MACOS_SDK 0
#else
  // For MacOS specific stuff
  #define GTM_MACOS_SDK 1
  #define GTM_IPHONE_SDK 0
  #define GTM_IPHONE_SIMULATOR 0
  #define GTM_IPHONE_DEVICE 0
  #define GTM_IPHONE_USE_SENTEST 0
#endif

// Some of our own availability macros
#if GTM_MACOS_SDK
#define GTM_AVAILABLE_ONLY_ON_IPHONE UNAVAILABLE_ATTRIBUTE
#define GTM_AVAILABLE_ONLY_ON_MACOS
#else
#define GTM_AVAILABLE_ONLY_ON_IPHONE
#define GTM_AVAILABLE_ONLY_ON_MACOS UNAVAILABLE_ATTRIBUTE
#endif

// GC was dropped by Apple, define the old constant incase anyone still keys
// off of it.
#ifndef GTM_SUPPORT_GC
  #define GTM_SUPPORT_GC 0
#endif

// To simplify support for 64bit (and Leopard in general), we provide the type
// defines for non Leopard SDKs
#if !(MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5)
 // NSInteger/NSUInteger and Max/Mins
  #ifndef NSINTEGER_DEFINED
    #if (defined(__LP64__) && __LP64__) || NS_BUILD_32_LIKE_64
      typedef long NSInteger;
      typedef unsigned long NSUInteger;
    #else
      typedef int NSInteger;
      typedef unsigned int NSUInteger;
    #endif
    #define NSIntegerMax    LONG_MAX
    #define NSIntegerMin    LONG_MIN
    #define NSUIntegerMax   ULONG_MAX
    #define NSINTEGER_DEFINED 1
  #endif  // NSINTEGER_DEFINED
  // CGFloat
  #ifndef CGFLOAT_DEFINED
    #if defined(__LP64__) && __LP64__
      // This really is an untested path (64bit on Tiger?)
      typedef double CGFloat;
      #define CGFLOAT_MIN DBL_MIN
      #define CGFLOAT_MAX DBL_MAX
      #define CGFLOAT_IS_DOUBLE 1
    #else /* !defined(__LP64__) || !__LP64__ */
      typedef float CGFloat;
      #define CGFLOAT_MIN FLT_MIN
      #define CGFLOAT_MAX FLT_MAX
      #define CGFLOAT_IS_DOUBLE 0
    #endif /* !defined(__LP64__) || !__LP64__ */
    #define CGFLOAT_DEFINED 1
  #endif // CGFLOAT_DEFINED
#endif  // MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5

// Some support for advanced clang static analysis functionality
// See http://clang-analyzer.llvm.org/annotations.html
#ifndef __has_feature      // Optional.
  #define __has_feature(x) 0 // Compatibility with non-clang compilers.
#endif

#ifndef NS_RETURNS_RETAINED
  #if __has_feature(attribute_ns_returns_retained)
    #define NS_RETURNS_RETAINED __attribute__((ns_returns_retained))
  #else
    #define NS_RETURNS_RETAINED
  #endif
#endif

#ifndef NS_RETURNS_NOT_RETAINED
  #if __has_feature(attribute_ns_returns_not_retained)
    #define NS_RETURNS_NOT_RETAINED __attribute__((ns_returns_not_retained))
  #else
    #define NS_RETURNS_NOT_RETAINED
  #endif
#endif

#ifndef CF_RETURNS_RETAINED
  #if __has_feature(attribute_cf_returns_retained)
    #define CF_RETURNS_RETAINED __attribute__((cf_returns_retained))
  #else
    #define CF_RETURNS_RETAINED
  #endif
#endif

#ifndef CF_RETURNS_NOT_RETAINED
  #if __has_feature(attribute_cf_returns_not_retained)
    #define CF_RETURNS_NOT_RETAINED __attribute__((cf_returns_not_retained))
  #else
    #define CF_RETURNS_NOT_RETAINED
  #endif
#endif

#ifndef NS_CONSUMED
  #if __has_feature(attribute_ns_consumed)
    #define NS_CONSUMED __attribute__((ns_consumed))
  #else
    #define NS_CONSUMED
  #endif
#endif

#ifndef CF_CONSUMED
  #if __has_feature(attribute_cf_consumed)
    #define CF_CONSUMED __attribute__((cf_consumed))
  #else
    #define CF_CONSUMED
  #endif
#endif

#ifndef NS_CONSUMES_SELF
  #if __has_feature(attribute_ns_consumes_self)
    #define NS_CONSUMES_SELF __attribute__((ns_consumes_self))
  #else
    #define NS_CONSUMES_SELF
  #endif
#endif

// Defined on 10.6 and above.
#ifndef NS_FORMAT_ARGUMENT
  #define NS_FORMAT_ARGUMENT(A)
#endif

// Defined on 10.6 and above.
#ifndef NS_FORMAT_FUNCTION
  #define NS_FORMAT_FUNCTION(F,A)
#endif

// Defined on 10.6 and above.
#ifndef CF_FORMAT_ARGUMENT
  #define CF_FORMAT_ARGUMENT(A)
#endif

// Defined on 10.6 and above.
#ifndef CF_FORMAT_FUNCTION
  #define CF_FORMAT_FUNCTION(F,A)
#endif

#ifndef GTM_NONNULL
  #if defined(__has_attribute)
    #if __has_attribute(nonnull)
      #define GTM_NONNULL(x) __attribute__((nonnull x))
    #else
      #define GTM_NONNULL(x)
    #endif
  #else
    #define GTM_NONNULL(x)
  #endif
#endif

// Invalidates the initializer from which it's called.
#ifndef GTMInvalidateInitializer
  #if __has_feature(objc_arc)
    #define GTMInvalidateInitializer() \
      do { \
        [self class]; /* Avoid warning of dead store to |self|. */ \
        _GTMDevAssert(NO, @"Invalid initializer."); \
        return nil; \
      } while (0)
  #else
    #define GTMInvalidateInitializer() \
      do { \
        [self release]; \
        _GTMDevAssert(NO, @"Invalid initializer."); \
        return nil; \
      } while (0)
  #endif
#endif

#ifndef GTMCFAutorelease
  #if __has_feature(objc_arc)
    #define GTMCFAutorelease(x) CFBridgingRelease(x)
  #else
    #define GTMCFAutorelease(x) ([(id)x autorelease])
  #endif
#endif

#ifdef __OBJC__

// Declared here so that it can easily be used for logging tracking if
// necessary. See GTMUnitTestDevLog.h for details.
@class NSString;
GTM_EXTERN void _GTMUnitTestDevLog(NSString *format, ...) NS_FORMAT_FUNCTION(1, 2);

// Macro to allow you to create NSStrings out of other macros.
// #define FOO foo
// NSString *fooString = GTM_NSSTRINGIFY(FOO);
#if !defined (GTM_NSSTRINGIFY)
  #define GTM_NSSTRINGIFY_INNER(x) @#x
  #define GTM_NSSTRINGIFY(x) GTM_NSSTRINGIFY_INNER(x)
#endif

// Macro to allow fast enumeration when building for 10.5 or later, and
// reliance on NSEnumerator for 10.4.  Remember, NSDictionary w/ FastEnumeration
// does keys, so pick the right thing, nothing is done on the FastEnumeration
// side to be sure you're getting what you wanted.
#ifndef GTM_FOREACH_OBJECT
  #if TARGET_OS_IPHONE || !(MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5)
    #define GTM_FOREACH_ENUMEREE(element, enumeration) \
      for (element in enumeration)
    #define GTM_FOREACH_OBJECT(element, collection) \
      for (element in collection)
    #define GTM_FOREACH_KEY(element, collection) \
      for (element in collection)
  #else
    #define GTM_FOREACH_ENUMEREE(element, enumeration) \
      for (NSEnumerator *_ ## element ## _enum = enumeration; \
           (element = [_ ## element ## _enum nextObject]) != nil; )
    #define GTM_FOREACH_OBJECT(element, collection) \
      GTM_FOREACH_ENUMEREE(element, [collection objectEnumerator])
    #define GTM_FOREACH_KEY(element, collection) \
      GTM_FOREACH_ENUMEREE(element, [collection keyEnumerator])
  #endif
#endif

// ============================================================================

// To simplify support for both Leopard and Snow Leopard we declare
// the Snow Leopard protocols that we need here.
#if !defined(GTM_10_6_PROTOCOLS_DEFINED) && !(MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_6)
#define GTM_10_6_PROTOCOLS_DEFINED 1
@protocol NSConnectionDelegate
@end
@protocol NSAnimationDelegate
@end
@protocol NSImageDelegate
@end
@protocol NSTabViewDelegate
@end
#endif  // !defined(GTM_10_6_PROTOCOLS_DEFINED) && !(MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_6)

// GTM_SEL_STRING is for specifying selector (usually property) names to KVC
// or KVO methods.
// In debug it will generate warnings for undeclared selectors if
// -Wunknown-selector is turned on.
// In release it will have no runtime overhead.
#ifndef GTM_SEL_STRING
  #ifdef DEBUG
    #define GTM_SEL_STRING(selName) NSStringFromSelector(@selector(selName))
  #else
    #define GTM_SEL_STRING(selName) @#selName
  #endif  // DEBUG
#endif  // GTM_SEL_STRING

#endif  // __OBJC__