5f31a1082b
Summary: Adds support for `!`-style fast calls in Android versions < 8. For now, this comes with the following restrictions: - has to be enabled with a macro - only supports native functions that return and accept primitive Java types (`jint`, `jdouble`, etc.), and `void` - this is supposed to map to `CriticalNative` as described in https://source.android.com/devices/tech/dalvik/improvements#faster-native-methods. Inline documentation in art: http://androidxref.com/6.0.1_r10/xref/art/runtime/jni_internal.cc#2110 Possible follow ups: - don’t prefix when the Android runtime is too new (to avoid the warning, and future error, see http://androidxref.com/8.1.0_r33/xref/art/runtime/jni_internal.cc#2355) - shim `CriticalNative` (see https://android.googlesource.com/platform/libcore/+/master/dalvik/src/main/java/dalvik/annotation/optimization/CriticalNative.java) - test whether we can use `CriticalNative` at all (docs claim classes must be on bootclasspath) - suppport `FastNative`, i.e. instance methods that can also receive and return `jobject` Reviewed By: cjhopman Differential Revision: D9630538 fbshipit-source-id: 0ae86c909b192429d60f8eddb15528cc38610379 |
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README.md
Building React Native for Android
See the docs on the website.
Running tests
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