Summary:
public
Adds the ability to load files from assets without threading through an AssetManager. After the bridge is unforked, we should move to passing through an Environment object instead.
Reviewed By: lexs
Differential Revision: D2779079
fb-gh-sync-id: 82b47ecdf48b724076d87f4879ec40601e21e6bc
Summary:
JS relies on the URL returned by SourceCodeModule to load packager assets. Because we currently return localhost when debugging (because that's the URL Chrome uses), assets don't load when debugging. This makes it so SourceCodeModule still returns the package URL relative to the emulator / device even when debugging.
public
Reviewed By: astreet
Differential Revision: D2759710
fb-gh-sync-id: bab6a88ef044b8b4d971381e3b23c59fa9aa2ed0
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.
public
Reviewed By: vjeux
Differential Revision: D2717535
fb-gh-sync-id: 70114f05483124f5ac5c4570422bb91a60a727f6
Summary:
Refactor modules that take activities (or activities that implement some interface) as constructor args to not do that. Expose `getCurrentActivity()` in `ReactContext` and use that wherever the activity is needed.
public
Reviewed By: astreet
Differential Revision: D2680462
fb-gh-sync-id: f263b3fe5b422b7aab9fdadd051cef4e82797b0a
Summary: public UIImplementationProvider allows plugging in an alternative UIImplementation. A follow up diff adds a toggle under FB Dev Settings and uses this class to control an implementation. This allows us experimenting with other ways of generating UI hierarchy from JavaScript components.
Reviewed By: astreet
Differential Revision: D2554774
fb-gh-sync-id: 6574a893020e3519bd2ab00b9620a6dbdfaed595
Summary: Change the following classes into interfaces, with a separate
Impl file: CatalystInstance, ReactInstanceManager,
CatalystQueueConfiguration, MessageQueueThread. This is done to help
isolate the interface between React Native and applications which use it.
This will also help some intrusive development work on a branch
such as porting parts of the bridge to common C++ code, without affecting
app reliability while this work is ongoing.
public
Reviewed By: astreet
Differential Revision: D2651277
fb-gh-sync-id: f04dc04a6e68df7acbc2bbf8b2529287d7b5b2ae
