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Add & use DISPATCH_NOESCAPE attribute macro #6

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jtbandes wants to merge 1 commit into from
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Add & use DISPATCH_NOESCAPE attribute macro #6

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6 changes: 6 additions & 0 deletions dispatch/base.h
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Original file line number Diff line number Diff line change
Expand Up @@ -124,6 +124,12 @@
#endif
#endif

#if defined(__has_attribute) && __has_attribute(noescape)
#define DISPATCH_NOESCAPE __attribute__((__noescape__))
#else
#define DISPATCH_NOESCAPE
#endif

#if defined(__has_feature) && defined(__has_extension)
#if __has_feature(objc_fixed_enum) || __has_extension(cxx_strong_enums)
#define DISPATCH_ENUM(name, type, ...) \
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6 changes: 3 additions & 3 deletions dispatch/queue.h
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Expand Up @@ -168,7 +168,7 @@ dispatch_async_f(dispatch_queue_t queue,
__OSX_AVAILABLE_STARTING(__MAC_10_6,__IPHONE_4_0)
DISPATCH_EXPORT DISPATCH_NONNULL_ALL DISPATCH_NOTHROW
void
dispatch_sync(dispatch_queue_t queue, dispatch_block_t block);
dispatch_sync(dispatch_queue_t queue, DISPATCH_NOESCAPE dispatch_block_t block);
#endif

/*!
Expand Down Expand Up @@ -230,7 +230,7 @@ __OSX_AVAILABLE_STARTING(__MAC_10_6,__IPHONE_4_0)
DISPATCH_EXPORT DISPATCH_NONNULL3 DISPATCH_NOTHROW
void
dispatch_apply(size_t iterations, dispatch_queue_t queue,
void (^block)(size_t));
DISPATCH_NOESCAPE void (^block)(size_t));
#endif

/*!
Expand Down Expand Up @@ -858,7 +858,7 @@ dispatch_barrier_async_f(dispatch_queue_t queue,
__OSX_AVAILABLE_STARTING(__MAC_10_7,__IPHONE_4_3)
DISPATCH_EXPORT DISPATCH_NONNULL_ALL DISPATCH_NOTHROW
void
dispatch_barrier_sync(dispatch_queue_t queue, dispatch_block_t block);
dispatch_barrier_sync(dispatch_queue_t queue, DISPATCH_NOESCAPE dispatch_block_t block);
#endif

/*!
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