Summary:
To make React Native play nicely with our internal build infrastructure we need to properly namespace all of our header includes.
Where previously you could do `#import "RCTBridge.h"`, you must now write this as `#import <React/RCTBridge.h>`. If your xcode project still has a custom header include path, both variants will likely continue to work, but for new projects, we're defaulting the header include path to `$(BUILT_PRODUCTS_DIR)/usr/local/include`, where the React and CSSLayout targets will copy a subset of headers too. To make Xcode copy headers phase work properly, you may need to add React as an explicit dependency to your app's scheme and disable "parallelize build".
Reviewed By: mmmulani
Differential Revision: D4213120
fbshipit-source-id: 84a32a4b250c27699e6795f43584f13d594a9a82
Summary:
If we use RCTLogError, we show a redbox with a native stacktrace before we can actually show the JS stacktrace (which is only done through dispatch_async). Instead use RCTLogWarn so its logged to console but not reported as a redbox.
Also fix call to RCTNSErrorFromJSErrorRef off the main thread RCTJSCExecutor.
Reviewed By: majak, mmmulani
Differential Revision: D3886813
fbshipit-source-id: 119d04858cb0c85c79e12ff8a79806711f8e0b27
Summary:
At the moment, posting RCTReloadNotification in any circumstance causes all RCTBridge instances to reload. This change scopes the notification to the bridge for which it was intended.
Closes https://github.com/facebook/react-native/pull/8762
Differential Revision: D3831914
fbshipit-source-id: ff29574f574ecd1a403057ddd0458dea38f0136e
Summary:
**Motivation:** We have a project that dynamically changes classes in runtime. This component is initialised within the React Native context. Therefor `RCTBatchedBridge` copies the classes before changes are made to them. While React Native is running, changes are made to the classes dynamically. When the project reloads the `RCTBatchedBridge`, it now has an invalid list of classes containing trash pointers. This causes the project to crash on https://github.com/facebook/react-native/blob/master/React/Base/RCTBatchedBridge.m#L288 with EXC_BAD_ACCESS in the DEBUG-mode.
**Solution:** Copy the class list on each reload to get the current state. Since this is only a DEBUG-feature the overhead of this should not be a major issue.
Closes https://github.com/facebook/react-native/pull/9541
Differential Revision: D3775012
Pulled By: javache
fbshipit-source-id: d55fa0742ca100d8018c73080230cf718aa5a7e9
Summary: This leaves no optional methods on `RCTJavaScriptExecutor`, which is certainly a good thing.
Reviewed By: majak
Differential Revision: D3518915
fbshipit-source-id: e606b9076c3299f81a225a181ea244148a1832cb
Summary:
After cleaning up JS SourceMap code, these native methods are not needed anymore.
On iOS it saves another 30+ Mb during development.
Reviewed By: javache, astreet
Differential Revision: D3348975
fbshipit-source-id: a68ae9b00b4dbaa374b421029ae676fc69ae5a75
Summary:
As per https://twitter.com/olebegemann/status/738656134731599872, our use of "main thread" to mean "main queue" seems to be unsafe.
This diff replaces the `NSThread.isMainQueue` checks with dispatch_get_specific(), which is the recommended approach.
I've also replaced all use of "MainThread" terminology with "MainQueue", and taken the opportunity to deprecate the "sync" param of `RCTExecuteOnMainThread()`, which, while we do still use it in a few places, is incredibly unsafe and shouldn't be encouraged.
Reviewed By: javache
Differential Revision: D3384910
fbshipit-source-id: ea7c216013372267b82eb25a38db5eb4cd46a089
Summary:
This is a solution for the problem I raised in https://www.facebook.com/groups/react.native.community/permalink/768218933313687/
I've added a new native base class, `RCTEventEmitter` as well as an equivalent JS class/module `NativeEventEmitter` (RCTEventEmitter.js and EventEmitter.js were taken already).
Instead of arbitrary modules sending events via `bridge.eventDispatcher`, the idea is that any module that sends events should now subclass `RCTEventEmitter`, and provide an equivalent JS module that subclasses `NativeEventEmitter`.
JS code that wants to observe the events should now observe it via the specific JS module rather than via `RCTDeviceEventEmitter` directly. e.g. to observer a keyboard event, instead of writing:
const RCTDeviceEventEmitter = require('RCTDeviceEventEmitter');
RCTDeviceEventEmitter.addListener('keyboardWillShow', (event) => { ... });
You'd now write:
const Keyboard = require('Keyboard');
Keyboard.addListener('keyboardWillShow', (event) => { ... });
Within a component, you can also use the `Subscribable.Mixin` as you would previously, but instead of:
this.addListenerOn(RCTDeviceEventEmitter, 'keyboardWillShow', ...);
Write:
this.addListenerOn(Keyboard, 'keyboardWillShow', ...);
This approach allows the native `RCTKeyboardObserver` module to be created lazily the first time a listener is added, and to stop sending events when the last listener is removed. It also allows us to validate that the event strings being observed and omitted match the supported events for that module.
As a proof-of-concept, I've converted the `RCTStatusBarManager` and `RCTKeyboardObserver` modules to use the new system. I'll convert the rest in a follow up diff.
For now, the new `NativeEventEmitter` JS module wraps the `RCTDeviceEventEmitter` JS module, and just uses the native `RCTEventEmitter` module for bookkeeping. This allows for full backwards compatibility (code that is observing the event via `RCTDeviceEventEmitter` instead of the specific module will still work as expected, albeit with a warning). Once all legacy calls have been removed, this could be refactored to something more elegant internally, whilst maintaining the same public interface.
Note: currently, all device events still share a single global namespace, since they're really all registered on the same emitter instance internally. We should move away from that as soon as possible because it's not intuitive and will likely lead to strange bugs if people add generic events such as "onChange" or "onError" to their modules (which is common practice for components, where it's not a problem).
Reviewed By: javache
Differential Revision: D3269966
fbshipit-source-id: 1412daba850cd373020e1086673ba38ef9193050
Summary:
Modules which call JS methods directly, or use `sendDeviceEventWithName:`, can trigger effects in JS without ever being referenced from the JS code. This breaks some assumptions in my earlier diff about when modules can be lazily loaded.
Pending a better solution, I've put explicit `init` methods in these modules to ensure they are eagerly initialized (the downside to this is that they'll still be initialized even if they are never used).
Reviewed By: javache
Differential Revision: D3258232
fb-gh-sync-id: f925bc2e5339c1fbfcc244d4613062c5ab848fc2
fbshipit-source-id: f925bc2e5339c1fbfcc244d4613062c5ab848fc2
Summary:
Now that we support initializing the bridge off the main thread, some of the assumptions in the bridge setup process are no longer safe.
In particular we were assuming that the JS executor and injected modules could always be synchronously initialized within bridge init, but that is only safe if those modules don't need to be set up on the main thread.
The setup for those modules was sync-dispatching to the main thread if bridge init happened on a background thread, and this lead to a deadlock under certain circumstances.
Reviewed By: javache
Differential Revision: D3224162
fb-gh-sync-id: 7319b70f541a46ef932cfe4f776e7e192f3ce1e8
fbshipit-source-id: 7319b70f541a46ef932cfe4f776e7e192f3ce1e8
Summary:When JSC throws an error on startup (e.g. a SyntaxError) or when invoking a method that is not caught by RCTExceptionsManager, we previously just reported is a native error, with a (useless) native stack trace in the redbox. This changes that behaviour to report a JS stacktrace.
The same issue was previously reported here: https://github.com/facebook/react-native/pull/5677
Reviewed By: majak
Differential Revision: D3037387
fb-gh-sync-id: 06f8333e0eb50dcef0b26284754262301b8a5f08
fbshipit-source-id: 06f8333e0eb50dcef0b26284754262301b8a5f08
Summary:The 200ms timeout was causing resource issues and causing a lot of overhead when you're not running the devtools, since it will basically create a new socket every 200ms.
Also clean up the way we do logging so it's completely compiled out in prod, and standardize all the names we use for threading to lowercase react.
Reviewed By: frantic
Differential Revision: D3115975
fb-gh-sync-id: e6e51c0621d8e9fc4eadb864acd678b8b5d322a1
fbshipit-source-id: e6e51c0621d8e9fc4eadb864acd678b8b5d322a1
Summary:Interface to `RCTBatchedBridge` was being declared in two different implementation files. This is suboptimal, since it makes it hard to mock that class in a test.
So I've merged and moved these two definitions in `RCTBridge+Private.h`, so it's still obvious it's a private class, but can be included if you really need it.
Reviewed By: javache
Differential Revision: D3126135
fb-gh-sync-id: 173e4c5c2925be387b92deb7f99952ca7bf28588
fbshipit-source-id: 173e4c5c2925be387b92deb7f99952ca7bf28588
Summary:`flowIDMap` lives on the bridge to map from the IDs used for the flow events in
JS and the ones generated by `RCTProfile` in the native side.
It was being accessed from multiple threads (the various modules' queues in the
bridge and the JS thread), so we lock before touching it.
Reviewed By: javache
Differential Revision: D3102745
fb-gh-sync-id: 93d012d124e8b5d1a390c10a98ef5e3a068ccf63
fbshipit-source-id: 93d012d124e8b5d1a390c10a98ef5e3a068ccf63
Pieter De Baets
Alex Kotliarskyi
Marc Horowitz
Alexey Lang
Ben Roth
Kasper Hirvikoski
Nathan Azaria
Adam Ernst
Skotch Vail
Nick Lockwood
Anoop Chaurasiya
Martin Kralik
Tadeu Zagallo