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Disable static analyzer for message semaphore creation (#2748)

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Disable static analyzer for message semaphore creation
This commit is contained in:
Sergio Campamá 2017-03-01 11:00:56 -08:00 committed by Thomas Van Lenten
parent 6011d7ca4c
commit 8b182cc455
1 changed files with 8 additions and 0 deletions
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8
objectivec/GPBMessage_PackagePrivate.h
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@ -108,9 +108,17 @@ CF_EXTERN_C_BEGIN
NS_INLINE void GPBPrepareReadOnlySemaphore(GPBMessage *self) {
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdirect-ivar-access"
// Starting on Xcode 8.3, the static analyzer complains that the dispatch_once_t
// variable passed to dispatch_once should not be allocated on the heap or
// stack. Given that the semaphore is also an instance variable of the message,
// both variables are cleared at the same time, so this is safe.
#if !defined(__clang_analyzer__)
dispatch_once(&self->readOnlySemaphoreCreationOnce_, ^{
self->readOnlySemaphore_ = dispatch_semaphore_create(1);
});
#endif // !defined(__clang_analyzer__)
#pragma clang diagnostic pop
}