de18977b42
Summary:
After we imported Fabric surface presenter observer mechanism, the thread-safe issue comes up, `operations` may read-write on main thread and shadow queue.
```
2019-03-20 15:53:21.249742+0800 RNTester[36039:1402802] *** Terminating app due to uncaught exception 'NSGenericException', reason: '*** Collection <__NSArrayM: 0x60000396a730> was mutated while being enumerated.'
*** First throw call stack:
(
0 CoreFoundation 0x00000001083221bb __exceptionPreprocess + 331
1 libobjc.A.dylib 0x0000000106a07735 objc_exception_throw + 48
2 CoreFoundation 0x000000010831ee9c __NSFastEnumerationMutationHandler + 124
3 RNTester 0x00000001048c8784 -[RCTNativeAnimatedModule didMountComponentsWithRootTag:] + 596
4 RNTester 0x000000010491423e -[RCTSurfacePresenter mountingManager:didMountComponentsWithRootTag:] + 1662
5 RNTester 0x00000001048f54e9 -[RCTMountingManager _performMountItems:rootTag:] + 1369
6 RNTester 0x00000001048f4eba __62-[RCTMountingManager performTransactionWithMutations:rootTag:]_block_invoke + 58
7 RNTester 0x0000000104710d1d __RCTExecuteOnMainQueue_block_invoke + 29
8 libdispatch.dylib 0x000000010a4db595 _dispatch_call_block_and_release + 12
9 libdispatch.dylib 0x000000010a4dc602 _dispatch_client_callout + 8
10 libdispatch.dylib 0x000000010a4e999a _dispatch_main_queue_callback_4CF + 1541
11 CoreFoundation 0x00000001082873e9 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 9
12 CoreFoundation 0x0000000108281a76 __CFRunLoopRun + 2342
13 CoreFoundation 0x0000000108280e11 CFRunLoopRunSpecific + 625
14 GraphicsServices 0x000000010e0c11dd GSEventRunModal + 62
15 UIKitCore 0x000000011567281d UIApplicationMain + 140
16 RNTester 0x0000000104553380 main + 112
17 libdyld.dylib 0x000000010a552575 start + 1
)
```
[iOS] [Fixed] - Fixed native animated crash because of thread-safe issue
Pull Request resolved: https://github.com/facebook/react-native/pull/24063
Differential Revision: D14563994
Pulled By: shergin
fbshipit-source-id: 98970c8993b7b794273ed3a8c40dbbce147e1f4b
React Native
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