Summary:
This adds a CountableJSExecutorFactory that derives from Countable. And uses that. Basically it allows code that doesn't need to know about jni or Countable not depend on it.
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Reviewed By: astreet
Differential Revision: D2905163
fb-gh-sync-id: f2bfd5589a3185bb175ad51660b17be08ba62424
Summary:
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This adds the ability to load “unbundles” in RN android apps. Unbundles are created by invoking the packager with the `unbundle` command rather than `bundle`.
The code detects usage of an “unbundle” by checking for the existence of a specific asset.
Reviewed By: astreet
Differential Revision: D2739596
fb-gh-sync-id: d0813c003fe0fa7b47798b970f56707079bfa5d7
Summary:
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Implements a basic WebWorkers API that allows posting messages between the main JS thread and a worker background thread. It follows the existing webworkers API from JS. Currently passed memory needs to be JSON serializable and is copied (unfortunately, this is what webkit does as well, but with a more advanced serialization/deserialization process).
There are a lot of TODO's: I'll add tasks for them once this is accepted.
Reviewed By: lexs
Differential Revision: D2779349
fb-gh-sync-id: 8ed04c115d36acf0264ef1f6a12a65dd0c14ff18
Summary:
The JavaScript ecosystem doesn't have the notion of a built-in native module loader. Even Node is decoupled from its module loader. The module loader system is just JS that runs on top of the global `process` object which has all the built-in goodies.
Additionally there is no such thing as a global require. That is something unique to our providesModule system. In other module systems such as node, every require is contextual. Even registered npm names are localized by version.
The only global namespace that is accessible to the host environment is the global object. Normally module systems attaches itself onto the hooks provided by the host environment on the global object.
Currently, we have two forms of dispatch that reaches directly into the module system. executeJSCall which reaches directly into require. Everything now calls through the BatchedBridge module (except one RCTLog edge case that I will fix). I propose that the executors calls directly onto `BatchedBridge` through an instance on the global so that everything is guaranteed to go through it. It becomes the main communication hub.
I also propose that we drop the dynamic requires inside of MessageQueue/BatchBridge and instead have the modules register themselves with the bridge.
executeJSCall was originally modeled after the XHP equivalent. The XHP equivalent was designed that way because the act of doing the call was the thing that defined a dependency on the module from the page. However, that is not how React Native works.
The JS side is driving the dependencies by virtue of requiring new modules and frameworks and the existence of dependencies is driven by the JS side, so this design doesn't make as much sense.
The main driver for this is to be able to introduce a new module system like Prepack's module system. However, it also unlocks the possibility to do dead module elimination even in our current module system. It is currently not possible because we don't know which module might be called from native.
Since the module system now becomes decoupled we could publish all our providesModule modules as npm/CommonJS modules using a rewrite script. That's what React Core does.
That way people could use any CommonJS bundler such as Webpack, Closure Compiler, Rollup or some new innovation to create a JS bundle.
This diff expands the executeJSCalls to the BatchedBridge's three individual pieces to make them first class instead of being dynamic. This removes one layer of abstraction. Hopefully we can also remove more of the things that register themselves with the BatchedBridge (various EventEmitters) and instead have everything go through the public protocol. ReactMethod/RCT_EXPORT_METHOD.
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Reviewed By: vjeux
Differential Revision: D2717535
fb-gh-sync-id: 70114f05483124f5ac5c4570422bb91a60a727f6
This is an early release and there are several things that are known
not to work if you're porting your iOS app to Android.
See the Known Issues guide on the website.
We will work with the community to reach platform parity with iOS.
