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Ryan Tremblay
9c32140068
Summary: The JavaScriptCore implementation of JSI [does not currently support array buffers](https://github.com/facebook/react-native/blob/master/ReactCommon/jsi/JSCRuntime.cpp#L925-L943). The comments in the code suggest the JSC version used by React Native does not work with array buffers, but this seems to be out of date since the current version of JSC used by React Native does indeed support array buffers. This change just enables array buffers in JSCRuntime.cpp. NOTE: See https://github.com/react-native-community/discussions-and-proposals/issues/91#issuecomment-632371219 for more background on this change. ## Changelog [General] [Added] - Support for array buffers in the JavaScriptCore implementation of JSI Pull Request resolved: https://github.com/facebook/react-native/pull/28961 Test Plan: To test these changes, I just made some temporary changes to RNTester to use JSI to inject a test function into the JS runtime that reads from and writes to an array buffer, and call that function from the JS of the RNTester app (see https://github.com/ryantrem/react-native/commit/28152ce3f4ae0fa906557415d106399b3f072118). For the JS side of this, specifically look at https://github.com/ryantrem/react-native/blob/28152ce3f4ae0fa906557415d106399b3f072118/RNTester/js/RNTesterApp.android.js#L13-L18 For the native side of this, specifically look at https://github.com/ryantrem/react-native/blob/28152ce3f4ae0fa906557415d106399b3f072118/RNTester/android/app/src/main/cpp/JSITest.cpp#L22-L38 Reviewed By: shergin Differential Revision: D21717995 Pulled By: tmikov fbshipit-source-id: 5788479bb33c24d01aa80fa7f509e0ff9dcefea6