Summary:
**Motivation**
I'm working on a project that uses React Native and needs to add direct synchronous bindings to native stuff through the JavaScriptCore C API. This is because it's performance-sensitive and would benefit from the quickest JS->C path. It does this using cross-platform C++ code that works on both iOS and Android. Most of the infrastructure for getting access to the JSC context is already in React Native actually, just had to add a few more things.
(lexs you mentioned to tag you in this pull request)
**Test plan**
Modify the JavaScriptCore context through the `JSContextRef` returned (eg. add an object at global scope) and verify that it exists in JavaScript.
Closes https://github.com/facebook/react-native/pull/10399
Differential Revision: D4080945
Pulled By: lexs
fbshipit-source-id: 6659b7a01e09fd84475adde183c1d3aca2d4cf09
Summary: No need to specify duplicative information.
Reviewed By: javache
Differential Revision: D3550805
fbshipit-source-id: b5abc3f1c74e26b4d4641c29fedba189cc46406e
Summary:
The `initWithJSContextProvider:` API created a `RCTJSCExecutor` with a thread/context that already exists, but it did not solve the problem of loading an actual application script; the `executeApplicationScript:` API is also asynchronous.
Create a new merged API that allows you to pass in a pre-created thread/context pair and immediately receive an `RCTJSCExector` that has already executed a specified application script.
This also removes the `underlyingJSContext` API entirely, in favor of passing it back in a byref variable in the new API. This minimizes the surface area for API abuse.
Reviewed By: bnham
Differential Revision: D3545349
fbshipit-source-id: 1c564f44d2a5379b5e6f75640079a28fd7169f67
Summary: This can be used to create a JavaScript thread and `JSContext` in advance, then supply them to the `RCTJSCExecutor` at creation time later.
Reviewed By: javache
Differential Revision: D3534553
fbshipit-source-id: 99ccf711928cd12e84c9fbe142c6d19a7af55d07
Summary:
public
Rename the executor to so it actually says something about the implementation.
Reviewed By: jspahrsummers, nicklockwood
Differential Revision: D2759688
fb-gh-sync-id: 5b1ac447e75109fbbc2ee71c804710d9926785aa