Summary:
TL;DR: For applications using JS navigation, save 50-95% of CPU during mounting phase in N>2 navigations that replace ~most of screen.
During investigation of performance on the UI thread of React Native applications, I noticed that the /initial/ render of an screen for an application using JS navigation is /mostly/ consumed (on the UI thread) by tearing-down the previous View hierarchy. In one 185ms segment on the UI thread in production, 95% of the CPU time was Remove/Delete instructions and only 5% of CPU time was consumed by actually displaying the new hierarchy (this is specific to Android and also assumes that View Preallocation is being used, so post-commit work consists of Insert and UpdateLayout mutations primarily).
There are /some/ cases where the C++ differ knows that we are deleting an entire subtree and therefore we could communicate this to the mounting layer. All that matters is that these Views are removed from the View hierarchy immediately; and secondarily that their memory is cleaned up ASAP, but that doesn't need to happen immediately.
Some additional constraints and notes:
1) As noted in the comments, we cannot simply stop producing Remove and Delete instructions. We need to produce /both/ the new RemoveDeleteTree instruction, /and/ produce all the Remove/Delete instructions, primarily because LayoutAnimations relies heavily on these Remove/Delete instructions and certain things would break if we removed those instructions entirely. However, we can mark those Remove/Delete instructions as redundant, process them only in LayoutAnimations, and not send them to the Android mounting layer.
2) We want to make sure that View Recycling is not impacted. Since Android cannot take advantage of View Recycling until /after/ the second major render (preallocation of views will happen before any views are recycled), this doesn't impact View Recycling and we'll make sure Views are recycled whenever they are deleted.
Thus, we do two things:
1) Introduce a new RemoveDeleteTree operation that can delete an entire subtree recursively as part of one operation. This allows us to avoid serializing hundreds or thousands of instructions and prevents JNI traffic.
2) Besides removing the topmost View from the View hierarchy, and ensuring it's not drawn, the full teardown and recycling of the tree can happen /after/ the paint.
In some flows with JS navigation this saves us 95% of CPU during the mount phase. In the general case it is probably closer to 25-50% of CPU time that is saved and/or deferred.
Changelog: [Android][Changed] Significant perf optimization to Fabric Remove/Delete operations
Reviewed By: ryancat
Differential Revision: D37257864
fbshipit-source-id: a7d33fc74683939965cfb98be4db7890644110b2
Summary:
Changelog: [Internal] - Fix a bug in dispatch filtering that was too aggressively filtering out events to fire.
My flaw in logic was limiting the `isListening(view, bubble)` logic to `i==0` for relevant `ViewTargets`, when in reality, we need to be checking if every `ViewTarget` passed to `filterByShouldDispatch` is listening to a bubble event.
Further, as vincentriemer pointed out, `ancestorListening` should only be set true if a `ViewTarget` is listening to a capture event.
Reviewed By: vincentriemer
Differential Revision: D37423952
fbshipit-source-id: 2ed08038632677c24766bca6214dc00013fa2446
Summary:
The current implementation of **getDefaultJSExecutorFactory** relies solely on try catch to load the correct .so file for jsc or hermes based on the project configuration.
Relying solely on try catch block and loading jsc even when project is using hermes can lead to launch time crashes especially in monorepo architectures and hybrid apps using both native android and react native.
So we can make use of an additional **ReactInstanceManager :: setJsEngineAsHermes** method that accepts a Boolean argument from the host app while building ReactInstanceManager which can tell which library to load at startup in **ReactInstanceManagerBuilder** which will now have an enhanced getDefaultJSExecutorFactory method that will combine the old logic with the new one to load the dso files.
The code snippet in **ReactInstanceManager** for adding a new setter method:
```
/**
* Sets the jsEngine as JSC or HERMES as per the setJsEngineAsHermes call
* Uses the enum {link JSInterpreter}
* param jsEngine
*/
private void setJSEngine(JSInterpreter jsEngine){
this.jsEngine = jsEngine;
}
/**
* Utility setter to set the required JSEngine as HERMES or JSC
* Defaults to OLD_LOGIC if not called by the host app
* param hermesEnabled
* hermesEnabled = true sets the JS Engine as HERMES and JSC otherwise
*/
public ReactInstanceManagerBuilder setJsEngineAsHermes(boolean hermesEnabled){
if(hermesEnabled){
setJSEngine(JSInterpreter.HERMES);
}
else{
setJSEngine(JSInterpreter.JSC);
}
return this;
}
```
The code snippet for the new logic in **ReactInstanceManagerBuilder**:
1) Setting up the new logic:
Adding a new enum class :
```
public enum JSInterpreter {
OLD_LOGIC,
JSC,
HERMES
}
```
A setter getting boolean value telling whether to use hermes or not and calling a private setter to update the enum variable.
```
/**
* Sets the jsEngine as JSC or HERMES as per the setJsEngineAsHermes call
* Uses the enum {link JSInterpreter}
* param jsEngine
*/
private void setJSEngine(JSInterpreter jsEngine){
this.jsEngine = jsEngine;
}
/**
* Utility setter to set the required JSEngine as HERMES or JSC
* Defaults to OLD_LOGIC if not called by the host app
* param hermesEnabled
* hermesEnabled = true sets the JS Engine as HERMES and JSC otherwise
*/
public ReactInstanceManagerBuilder setJsEngineAsHermes(boolean hermesEnabled){
if(hermesEnabled){
setJSEngine(JSInterpreter.HERMES);
}
else{
setJSEngine(JSInterpreter.JSC);
}
return this;
}
```
2) Modifying the getDefaultJSExecutorFactory method to incorporate the new logic with the old one:
```
private JavaScriptExecutorFactory getDefaultJSExecutorFactory(
String appName, String deviceName, Context applicationContext) {
// Relying solely on try catch block and loading jsc even when
// project is using hermes can lead to launch-time crashes especially in
// monorepo architectures and hybrid apps using both native android
// and react native.
// So we can use the value of enableHermes received by the constructor
// to decide which library to load at launch
// if nothing is specified, use old loading method
// else load the required engine
if (jsEngine == JSInterpreter.OLD_LOGIC) {
try {
// If JSC is included, use it as normal
initializeSoLoaderIfNecessary(applicationContext);
JSCExecutor.loadLibrary();
return new JSCExecutorFactory(appName, deviceName);
} catch (UnsatisfiedLinkError jscE) {
if (jscE.getMessage().contains("__cxa_bad_typeid")) {
throw jscE;
}
HermesExecutor.loadLibrary();
return new HermesExecutorFactory();
}
} else if (jsEngine == JSInterpreter.HERMES) {
HermesExecutor.loadLibrary();
return new HermesExecutorFactory();
} else {
JSCExecutor.loadLibrary();
return new JSCExecutorFactory(appName, deviceName);
}
}
```
### **Suggested changes in any Android App's MainApplication that extends ReactApplication to take advantage of this fix**
```
builder = ReactInstanceManager.builder()
.setApplication(this)
.setJsEngineAsHermes(BuildConfig.HERMES_ENABLED)
.setBundleAssetName("index.android.bundle")
.setJSMainModulePath("index")
```
where HERMES_ENABLED is a buildConfigField based on the enableHermes flag in build.gradle:
`def enableHermes = project.ext.react.get("enableHermes", true)
`
and then
```
defaultConfig{
if(enableHermes) {
buildConfigField("boolean", "HERMES_ENABLED", "true")
}
else{
buildConfigField("boolean", "HERMES_ENABLED", "false")
}
}
```
Our app was facing a similar issue as listed in this list: **https://github.com/facebook/react-native/issues?q=is%3Aissue+is%3Aopen+DSO**. Which was react-native trying to load jsc even when our project used hermes when a debug build was deployed on a device using android studio play button.
This change can possibly solve many of the issues listed in the list as it solved ours.
## Changelog
[GENERAL] [ADDED] - An enum JSInterpreter in com.facebook.react package:
```
/**
* An enum that specifies the JS Engine to be used in the app
* Old Logic uses the legacy code
* JSC/HERMES loads the respective engine using the revamped logic
*/
public enum JSInterpreter {
OLD_LOGIC,
JSC,
HERMES
}
```
[GENERAL] [ADDED] - An enum variable storing the default value of Js Engine loading mechanism in ReactInstanceManagerBuilder:
```
private JSInterpreter jsEngine = JSInterpreter.OLD_LOGIC;
```
[GENERAL] [ADDED] - A new setter method and a helper method to set the js engine in ReactInstanceManagerBuilder:
```
/**
* Sets the jsEngine as JSC or HERMES as per the setJsEngineAsHermes call
* Uses the enum {link JSInterpreter}
* param jsEngine
*/
private void setJSEngine(JSInterpreter jsEngine){
this.jsEngine = jsEngine;
}
/**
* Utility setter to set the required JSEngine as HERMES or JSC
* Defaults to OLD_LOGIC if not called by the host app
* param hermesEnabled
* hermesEnabled = true sets the JS Engine as HERMES and JSC otherwise
*/
public ReactInstanceManagerBuilder setJsEngineAsHermes(boolean hermesEnabled){
if(hermesEnabled){
setJSEngine(JSInterpreter.HERMES);
}
else{
setJSEngine(JSInterpreter.JSC);
}
return this;
}
```
[GENERAL] [ADDED] - Modified **getDefaultJSExecutorFactory** method
```
private JavaScriptExecutorFactory getDefaultJSExecutorFactory(
String appName, String deviceName, Context applicationContext) {
// Relying solely on try catch block and loading jsc even when
// project is using hermes can lead to launch-time crashes especially in
// monorepo architectures and hybrid apps using both native android
// and react native.
// So we can use the value of enableHermes received by the constructor
// to decide which library to load at launch
// if nothing is specified, use old loading method
// else load the required engine
if (jsEngine == JSInterpreter.OLD_LOGIC) {
try {
// If JSC is included, use it as normal
initializeSoLoaderIfNecessary(applicationContext);
JSCExecutor.loadLibrary();
return new JSCExecutorFactory(appName, deviceName);
} catch (UnsatisfiedLinkError jscE) {
if (jscE.getMessage().contains("__cxa_bad_typeid")) {
throw jscE;
}
HermesExecutor.loadLibrary();
return new HermesExecutorFactory();
}
} else if (jsEngine == JSInterpreter.HERMES) {
HermesExecutor.loadLibrary();
return new HermesExecutorFactory();
} else {
JSCExecutor.loadLibrary();
return new JSCExecutorFactory(appName, deviceName);
}
}
```
Pull Request resolved: https://github.com/facebook/react-native/pull/33952
Test Plan:
The testing for this change might be tricky but can be done by following the reproduction steps in the issues related to DSO loading here: https://github.com/facebook/react-native/issues?q=is%3Aissue+is%3Aopen+DSO
Generally, the app will not crash anymore on deploying debug using android studio if we are removing libjsc and its related libraries in **packagingOptions** in build.gradle and using hermes in the project.
It can be like:
```
packagingOptions {
if (enableHermes) {
exclude "**/libjsc*.so"
}
}
```
Reviewed By: lunaleaps
Differential Revision: D37191981
Pulled By: cortinico
fbshipit-source-id: c528ead126939f1d788af7523f3798ed2a14f36e
Summary:
Changelog: [Internal] Fixing a recent optimization to prevent event dispatches for events that are not listened for. An incorrect hitpath was passed in for `leave` events.
Refactored the PointerEvent optimization such that `filterByShouldDispatch` determines what views should dispatch a PointerEvent, and `dispatchEventForViewTargets` to actually dispatch them. We are separating this because the order of dispatch differs between `enter` and `leave` events.
Reviewed By: vincentriemer
Differential Revision: D37348726
fbshipit-source-id: a09a04df3ae027cce95e0d93a4163c2015fe3fe3
Summary:
We need to check that the animated node exists prior to executing the animation. The native animated node lifecycle is not synced with Fabric and nodes are frequently destroyed and re-created on rerenders. Therefore, there is a possibility that the the animated node does not exist when the native event is dispatched, in particular with native call batching.
Changelog:
[Internal] - Make NativeAnimatedNodesManager.getNodeById public
Reviewed By: JoshuaGross
Differential Revision: D37323138
fbshipit-source-id: ed0567871b4189c454b6b3145b853ecdfe844840
Summary:
ThemedReactContext should be what is stored as the context on all RN views, but some legacy components use other things like an Activity.
Changelog: [Internal]
Reviewed By: cortinico
Differential Revision: D37356865
fbshipit-source-id: bc914cd06a8846037506a50f254995a6e10c8a9c
Summary:
This PR is a follow up for the contributing content move on the website:
* https://github.com/facebook/react-native-website/pull/3120
It replaces most of the CONTRIBUTING file content with a reference to the contributing overview page on the website, which has been based off the content of this file.
Additionally I have searched thought the code for the wiki links and replaces theme with the correct website links. There was an instance where comment was referring to an old and removed a while ago wiki page, so I just get rid of this link.
## Changelog
[Internal] [Chore] - Update CONTRIBUTING.md, replace wiki links
Pull Request resolved: https://github.com/facebook/react-native/pull/34035
Test Plan: N/A
Reviewed By: lunaleaps
Differential Revision: D37318814
Pulled By: cortinico
fbshipit-source-id: d3f5e5c5bd477c0de5c4f0f1d5de81f464b9f5b4
Summary:
Fix crashes that can occur on older versions of Android due to not-yet-implemented APIs.
Changelog: [Internal]
Reviewed By: cortinico
Differential Revision: D37321713
fbshipit-source-id: a27aaf4b28e19a86f4cb10808162102177b9f306
Summary:
Fixes a trivial crash that occurs when running View Recycling on pre-Android P devices.
Changelog: [Internal]
Reviewed By: bvanderhoof
Differential Revision: D37242858
fbshipit-source-id: 74f3912d60799172c47c67a87f662b4ff8fb1e35
Summary:
Changelog: [Internal][Changed]
The diff I'm backing out accidentally made Hover events in Felios apps that use RN under the hood stopped working in headsets (Oculus, Arcata). So we can't test our apps properly without these events.
We, with the diff author Luna tried to fix that but it turned out to be not easy so we decided to revert the commit in order to unblock experiences teams.
Original commit changeset: d6b5c32ae50b
Original Phabricator Diff: D36601638 (https://github.com/facebook/react-native/commit/40769f2212dcd85cba2e54973179c7de445499a4)
(Note: this ignores all push blocking failures!)
Reviewed By: arhelmus
Differential Revision: D37135208
fbshipit-source-id: 4f7d5f168b795690e951ce7063ae3feec3338772
Summary:
Adds support for handling animations in response to events on the platform side, without needing a JS round trip. With this TM, NativeViewEvents will no longer affected by JS thread - hover events will not be delayed when JS thread is busy. This makes a significant difference for VR panel apps - see test plan for an example for the before and after in Store.
Changelog:
[Internal] - Make NativeAnimatedNodesManager public
Reviewed By: JoshuaGross
Differential Revision: D37082069
fbshipit-source-id: 330acd78c547587de5545b61895e0d821fb99552
Summary:
We currently wrap colors in an object to make it look similar to a `PlatformColor` object, but since this is a hot codepath, let's just optimize it to a simple array of strings. The next step is to apply a layer of caching here, but this should be a simple improvement.
Changelog: [internal]
Reviewed By: JoshuaGross
Differential Revision: D31057046
fbshipit-source-id: f68e17167ddd5bba3b545d039600c7c9b40808f5
Summary:
It turned out the previous attempt to rely on the Event's UIManagerType wasn't sufficient, as not all Fabric touch event had a surfaceId set on them, e.g. Modal etc.
This brings back the UIManagerType detection based on reactTag, but do it only for non-rootView to keep handling touch via the right dispatcher for rootView as well.
Changelog: [Fixed][Android] Bring back non-rootview touch handling based on reactTag
Reviewed By: JoshuaGross, sshic
Differential Revision: D37063335
fbshipit-source-id: 76e2d7ae5f00006c5ecaf50c86920ea6e85155b7
Summary:
This diff adds an assertion to make sure the pending events are enqueued only when the event emitter is null. This is to avoid unexpected workflow when we queue events but we should just dispatch them.
Changelog:
[Android][Internal] - Make sure we only queue events when event emitter is null
Reviewed By: javache
Differential Revision: D36916482
fbshipit-source-id: fff305615b302ece26bc2482c826b74de4f70266
Summary:
D36784563 (https://github.com/facebook/react-native/commit/ec307e0167deca7f17640cd3c5a60f6be5f47b62) caused some issues with TextInputs with numeric keyboard types not respecting the secureTextEntry prop
Changelog
[Android] [Fixed] - Revert PR 33924 because of issues with TextInputs with numeric keyboard types not respecting the secureTextEntry prop
Reviewed By: makovkastar
Differential Revision: D36994688
fbshipit-source-id: 89cd556ca1cf8fd89560aeb9ead129607b4c13c6
Summary:
This diff address an edge case when the pending events are enqueued when the surface is stopped. In this case we will reset map that holds view state to null, which will cause NPE.
Changelog:
[Android][Fixed] - Fix edge case when we enqueue a pending event to views on stopped surface
Reviewed By: javache, gorodscy
Differential Revision: D36912786
fbshipit-source-id: 3ae5a4b08a0a6bf55538d69ac80a101c2c3d899a
Summary:
When tapping on ReactRootView and having Fabric enabled, the touch logic mistakenly dispatch the event to JS via the legacy renderer. This is because the destination was computed based on reactTag (odd = legacy, even = Fabric), but root view tag happens to be always odd (always ends with 1). This change uses the right destination based on what the Event itself tells us, instead of deriving from the reactTag.
Changelog: [Android][Fixed] Fix Fabric touch event dispatching for root views
Reviewed By: JoshuaGross, sshic
Differential Revision: D36917300
fbshipit-source-id: 838b4e135d7df07c37040bd47d71370ff10df067
Summary:
This diff fixes the rendering of transparent borders in RN Android views
The fix clips the view ONLY when there is a border color that's non transparent
This change unifies the rendering of transparent and semitransparent borders for Views between RN Android, iOS and Web
Changelog: [Android][Fix] Fix rendering of transparent borders in RN Android
Reviewed By: JoshuaGross
Differential Revision: D36890856
fbshipit-source-id: 38fc2ae215f136160a73ca470e03fada8cb81ced
Summary:
In the constructor we should get the default gravity params (as we did previously) and then never change these; thus, we can also make these fields final. These are used in `initView` during construction and upon recycling to reset vertical and horizontal alignment to their defaults.
Changelog: [Internal]
Reviewed By: genkikondo
Differential Revision: D36885646
fbshipit-source-id: 2f4d0b125b8645a380a08965e08db3ba1f12cae3
Summary:
Right now, when we change the keyboardType on android between between default and email, the value keyboard type stays as email (specially noticeable with the key next to the spacebar, that changes between the comma (`,`) to the at sign (`@`)).
This is because the mask we are using when updating the input is only taking into account the class, and not the flags nor the variations.
We don't apply all masks because it may interfere with flags assigned by other props, like multiline or secure text entry. Therefore, we have created our own mask, taking into account all the variations and flags that the keyboardType prop may set. This may be hard to maintain, since whenever we add any other keyboard type, we have to take these flags into mind.
The error I was trying to fix was in particular regarding going back and forward from email, but this fix may solve other similar issues with other keyboard styles.
## Changelog
[Android] [Fixed] - Fix a bug where the keyboard, once set as email, won't change back to default.
Pull Request resolved: https://github.com/facebook/react-native/pull/33924
Test Plan: In order to test this PR, any test code with a TextInput, and a way to change the value of the keyboardType should work. We should be able to see how the keyboard changes to the correct type without staying, for example, on the email state.
Reviewed By: lunaleaps
Differential Revision: D36784563
Pulled By: makovkastar
fbshipit-source-id: 74d7b61b3c07feea4e4050d7a07603a68b98e835
Summary:
tldr; `ReactEditText` and Android's emoji support in Android's AppCompat 1.4.0 / 1.4.x conflict in an odd way, causing NPEs.
`ReactEditText` defines an `InternalKeyListener`, `mKeyListener`, that it uses to make sure input from all keyboards works correctly. This listener is normally initialized at the end of the constructor.
Unfortunately, some versions of `AppCompatEditText`, most notably the version in the App Compat `1.4.0-alpha0x`, the [minimum version required for the Play Store's emoji compliance](https://developer.android.com/guide/topics/ui/look-and-feel/emoji2#appcompat) call `setInputType` from `AppCompatEditText`'s constructor. `ReactEditText` operates on the key listener inside of `setInputType` and since the `AppCompatEditText` constructor is called via call to `super` before the key listener is initialized, these versions of app compat can cause NPEs when used with React Native.
The fix is simple; check to see if `mKeyListener` is null, and initialize it if it is. This is necessary in both the constructor and inside of `setInputType`.
## Changelog
<!-- Help reviewers and the release process by writing your own changelog entry. For an example, see:
https://github.com/facebook/react-native/wiki/Changelog
-->
https://github.com/facebook/react-native/wiki/Changelog
[Android] [Fixed] - NPE in `ReactEditText.setInputType` when React Native is used with some versions of a AppCompat 1.4.x. (and possibly others)
Pull Request resolved: https://github.com/facebook/react-native/pull/33920
Test Plan:
1. Build an app with both React Native and load it inside an app that is using AppCompat 1.4.x
2. Add a text field using React Native.
3. Open the screen of the app that contains the text field.
If you're working from this branch, you'll be fine. If you're working from main you'll get an NPE.
I can put together a test repo if needed.
Reviewed By: kacieb
Differential Revision: D36802622
Pulled By: cortinico
fbshipit-source-id: e7646da9a1ef0e0334152aecab0f972ca25092ec
Summary:
Adding a flag to prepare for the phase 3 of the new architecture. This is still work in progress, not usable yet.
Changelog: [Internal]
Reviewed By: RSNara
Differential Revision: D36767843
fbshipit-source-id: 338d775681f2890461608b403749c3a7f05f84ff
Summary:
Followups to View Recycling diffs to improve things / clean up things a bit. This also fixes memory warnings which were not hooked up before.
Changelog: [Internal]
Reviewed By: mdvacca
Differential Revision: D36707792
fbshipit-source-id: 410e70bf0eeec5569566138af547e1601394d0e6
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/33897
Now the exception will display the class which caused the exception as well as helpful information as to why.
We've seen this happen a bunch due and have been very confused by the error message. It turns out that this processor runs before the classes listed are compiled. This means that if there's a compile error (or a missing import) the user will only see that this processor crashed, and not the compile error.
The additional information in the error is:
`java.lang.RuntimeException: Could not load classes set in ReactModuleList.nativeModules. Check that they exist and are imported correctly on class: com.meta.x.y.ReactPackage`
In this case, `com.meta.x.y.ReactPackage` is the class which needs to be fixed. Before, the error message made no mention of this class or the annotation.
Changelog: [Internal] This will change the way the annotation processor crashes. It will throw a RuntimeException instead of a ClassCastException.
Reviewed By: javache
Differential Revision: D36606279
fbshipit-source-id: aedf9682286fba49e23716b7eda16b2dd3b13422
Summary:
See previous diff for details on general approach and benchmarks.
Changelog: [Internal]
Reviewed By: mdvacca
Differential Revision: D36676887
fbshipit-source-id: b177dcd19f1ea687bf7d2d4f2f637d2924723340
Summary:
Changelog: [Internal][Changed] - Make the same optimization on enter/leave/move pointer events being dispatched by a mouse input.
If any ancestor view is listening to enter/leave events (just capture) then we dispatch the enter/leave event.
Reviewed By: vincentriemer
Differential Revision: D36601638
fbshipit-source-id: d6b5c32ae50bcf000100bcb878ca2ca89bd5c02e
Summary:
RN-Tester is currently crashing at startup time due to an NPE.
This PR fixes it.
## Changelog
[Android] [Fixed] - Fix NPE on `ReactEditText` due to null mFabricViewStateManager
Pull Request resolved: https://github.com/facebook/react-native/pull/33910
Test Plan: Tested locally that RN Tester runs both in Debug and in Release
Reviewed By: cipolleschi
Differential Revision: D36666440
Pulled By: cortinico
fbshipit-source-id: f004ff228fb4f9ff339aac606858d47de3706426
Summary:
There are two methods in ReactRootView to handle touch events "onInterceptTouchEvent" and "onTouchEvent", for Venice we have ReactSurfaceView inherits ReactRootView but the implementation for above 2 touch handling methods still calls into it's super implementation which uses the bridge.
In this diff we make ReactSurfaceView inherits ReactRootView's "dispatchJSTouchEvent" and "dispatchJSPointerEvent". So that Venice has separate implementation for touch events handling.
Changelog:
[Android][Changed] - Revamp touch event dispatching methods
Reviewed By: fkgozali, JoshuaGross
Differential Revision: D36629466
fbshipit-source-id: fb7c5950afe6249d22edd3fac3fa5d3b83b3af84
Summary:
This op code was incorrectly configured to take two args, while it only takes one.
Changelog: [Internal]
Differential Revision: D36664590
fbshipit-source-id: 6e1fdb9f64bbd32fbe05bbd174f94ae57292bcf9
Summary:
This diff cleans up several Android Makefiles which we're not using anymore
as they've been replaced by CMake files.
There are still 3 Makefiles left, which I'm aiming to remove in the near future.
Changelog:
[Internal] [Changed] - Remove unused Makefiles from React Native core
Reviewed By: javache
Differential Revision: D36660902
fbshipit-source-id: 8afffac74d493616b0f9414567821cd69f4ef803
Summary:
There's no need for this to be a setter/getter, as there are no side-effects, and it means we can use the same helper method to read it as other feature flags.
Changelog: [Internal]
Reviewed By: cortinico
Differential Revision: D36595602
fbshipit-source-id: d27c01bd39d03606a6f8c17ba181a8cd0bf58dbb
Summary:
Enables two new experiments (and the current behaviour as default) to speed up access to TurboModule methods from JS.
1) HostObject - Current behaviour
2) Prototype - Connect the TM HostObject via `__proto__`, and cache any methods accessed on the wrapper object.
3) Eager - Eagerly store all methods on the wrapper object, do not expose the HostObject to JS at all (TurboModules no longer need to be HostObjects in this scenario)
Changelog: [Internal]
Reviewed By: JoshuaGross, rubennorte, mdvacca
Differential Revision: D36590018
fbshipit-source-id: c9565eb239eb6aeee0f06b581ff8cd72a92073fc
Summary:
* Make constructor private, all access is through install()
* Use nullability of longLivedObjectCollection_ instead of separate bool disableGlobalLongLivedObjectCollection_
Changelog: [Internal]
Reviewed By: RSNara
Differential Revision: D36592492
fbshipit-source-id: d65e779e1ac9fbe121937c5a20763aefcd589795
Summary:
In D36345402 (https://github.com/facebook/react-native/commit/56e9aa369f5c13af38cf80ba47e9eb29d835ec89) I changed the behaviour for mount items to be skipped if they were just setting zero values. AndroidTextInput is the only component that I'm aware of that has non-zero padding by default, and we account for this when creating the native shadow node. This optimization broken TextInput use-cases that explicitly request zero-padding, since we end up ignoring it.
To keep this optimization, explicitly init ReactTextInput's padding to 0, but only in Fabric. `updateState` was the closest thing I could find to a Fabric-only callback, once it's fully rolled out, we can also move this to the constructor.
Changelog: [Internal]
Reviewed By: JoshuaGross
Differential Revision: D36545775
fbshipit-source-id: 07bb96032c69d7e350980b0b975e637b66c307ed
Summary:
I have never seen these asserts fire in production. They're pretty cheap but the cost is not zero. We will use annotations and test carefully in debug if we need to ensure that something runs on a particular thread - which we do anyway.
Motivation: this method is called /extremely frequently/, everywhere in the mounting layer. And 99.99% of the time it's completely useless and results in absolutely no signal. In many cases, it will be called hundreds or thousands of times during a single operation (for example, when executing the IntMountBuffer items, each sub-item will call this many times).
Wall-clock time is usually low according to systrace (sometimes there are odd spikes), but over time these do add up and it seems good to save a few ms here and there.
Changelog: [Internal]
Reviewed By: javache
Differential Revision: D36539399
fbshipit-source-id: 3e023be64b8c9f0e6c3c8347c077ce9fa38f74a4
Summary:
It's useful to have more systrace markers that are all the same, so that they can all be aggregated and work underneath them aggregated across an entire trace. As it is, this marker gets treated as unique nearly every time which makes analysis harder.
Changelog: [Internal]
Reviewed By: javache
Differential Revision: D36533075
fbshipit-source-id: 925afa7db152eca1166891b41e7c6f6a511840af
Summary: Changelog: [Internal] - Bypass dispatching an event if no view along the hierarchy is listening to it. Only applied for touch-based interactions. Next change will add optimization for mouse interactions
Reviewed By: vincentriemer
Differential Revision: D35739417
fbshipit-source-id: 134ffefef3bb4f97bf3e63b6bccc0caca464dfbd
Summary:
Splitting these changes of from D36482630, which is a minor improvement to the singleOp experiment. Since we call start/finish already on the native side, we don't need to repeat it from JS.
Changelog: [Internal]
Reviewed By: JoshuaGross
Differential Revision: D36541700
fbshipit-source-id: 7d61669710faca3153be557fb2d214011eda87c5
Joshua Gross
Luna Wei
Kunal Farmah
Genki Kondo
Simek
fabriziobertoglio1987
Artem Goncharov
Pieter De Baets
Xin Chen
Kevin Gozali
Charles Dudley
David Vacca
Daniel Espino García
Andy Zolyak
Nicola Corti
Daniel Abramowitz
Lulu Wu
Rubén Norte