Summary:
For now, disable TM completely in test environment, like RNTester integration/unit tests. See details in T53341772
This also fixes the failure discussed in https://github.com/facebook/react-native/pull/26151
Reviewed By: PeteTheHeat
Differential Revision: D17147915
fbshipit-source-id: 1c48ebb9c3b81fc08bc33606dcc38c29297d6010
Summary:
@public
RCTDevMenu and RCTDevSettings are used to display the dev menu you see when you shake the device.
With this change in build flags, it's possible to build them into a production version of the app without pulling in all the RCT_DEV logic.
Reviewed By: shergin
Differential Revision: D17116992
fbshipit-source-id: 71458c49affe5bb94c52c9d8bb0f793b16d35828
Summary:
Implements the Appearance native module as discussed in https://github.com/react-native-community/discussions-and-proposals/issues/126.
The purpose of the Appearance native module is to expose the user's appearance preferences. It provides a basic get() API that returns the user's preferred color scheme on iOS 13 devices, also known as Dark Mode. It also provides the ability to subscribe to events whenever an appearance preference changes.
The name, "Appearance", was chosen purposefully to allow for future expansion to cover other appearance preferences such as reduced motion, reduced transparency, or high contrast modes.
Changelog:
[iOS] [Added] - The Appearance native module can be used to prepare your app for Dark Mode on iOS 13.
Reviewed By: yungsters
Differential Revision: D16699954
fbshipit-source-id: 03b4cc5d2a1a69f31f3a6d9bece23f6867b774ea
Summary:
@public
CADisplayLink strongly holds onto its target, so you have to use a weak proxy object to pass the target into the CADisplayLink.
Previously we passed a weak-self point (i.e. weakSelf) but this did not have the intended effect, since the pointer to self would still be passed to CADisplayLink, and thus it would hold onto the RCTUIImageViewAnimated strongly.
So is weakSelf doing anything other than using self?
It is but it's very minor and not useful. In the case that the object got de-allocated between assigning self to weakSelf and creating the CADisplayLink, then we would pass a nil target. This is actually impossible though because we are running an instance method, so self is implicitly retained! So semantically it is something different but in practice it is the same as passing self through.
Notes:
* This system was added originally in https://github.com/facebook/react-native/pull/24822
* https://github.com/facebook/react-native/pull/25636 then "enabled" this system by deprecating existing approach
Reviewed By: fkgozali
Differential Revision: D16939869
fbshipit-source-id: 7a0e947896f23aa30ad074d1dcb4d4db7543e00a
Summary:
# What's the problem?
`RCTSurfacePresenter._scheduler` is deallocated in `RCTSurfacePresenter.handleBridgeWillReloadNotification`.
It shouldn't be used before `RCTSurfacePresenter.handleJavaScriptDidLoadNotification` is called because that's when new `RCTSurfacePresenter._batchedBridge` is created, scheduler depends on this new `RCTSurfacePresenter._batchedBridge`.
But it is, it means that it is created with the old bridge, this means that it gets deallocated right away.
First access point of old bridge is in `RCTSurfacePresenter.setMinimumSize`.
# What's the fix?
Make sure surface has correct stage before calling layout methods.
The other idea was to return early in `RCTSurfacePresenter.setMinimumSize` in case bridge isn't setup.
# Problems?
1. Following error still appears after reload
{F176556210}
2. There is a white space for a while. By white space a mean the screen stays white for a short period of time before displaying content.
Reviewed By: fkgozali, JoshuaGross
Differential Revision: D16762443
fbshipit-source-id: 5a2a880b0f5345f268291c86811264f42f6058b3
Summary:
Updated the message from
> Loading from pre-bundled file
to
> Connect to Metro to develop JavaScript
I also added a new RCT_PACKAGER_NAME so other packagers can override "Metro"
Reviewed By: yungsters, cpojer
Differential Revision: D16427501
fbshipit-source-id: 1b7f9e261f7521ba930c6248087fe6f3c3659cb7
Summary:
These helper functions will be used by the ObjC generated code for support on commands.
This is an example of what that code might look like and how these functions will be used.
```
- (void)handleCommand:(NSString const *)commandName args:(NSArray const *)args
{
if ([commandName isEqualToString:@"scrollTo"]) {
if ([args count] != 2) {
RCTLogError(
@"%@ command %@ received %d arguments, expected %d.", @"ScrollView", @"scrollTo", (int)[args count], 2);
return;
}
NSObject *arg0 = args[0];
if (!RCTValidateTypeOfViewCommandArgument(arg0, [NSNumber class], @"number", @"ScrollView", @"scrollTo", @"1st")) {
return;
}
int x = [(NSNumber *)arg0 intValue];
NSObject *arg1 = args[1];
if (!RCTValidateTypeOfViewCommandArgument(arg1, [NSNumber class], @"number", @"ScrollView", @"scrollTo", @"2nd")) {
return;
}
int y = [(NSNumber *)arg1 intValue];
[self scrollTo:x y:y];
} else if ([commandName isEqualToString:@"scrollToEnd"]) {
if ([args count] != 0) {
RCTLogError(
@"%@ command %@ received %d arguments, expected %d.", @"ScrollView", @"scrollToEnd", (int)[args count], 0);
return;
}
[self scrollToEnd];
}
}
```
Reviewed By: JoshuaGross
Differential Revision: D16474117
fbshipit-source-id: 2bb9f01d7c97cc59e9373b7759021c65980fcc0e
Summary:
Macro `ENABLE_PACKAGER_CONNECTION` invalid because of `__has_include` can't find the header now. Leads to packager connection not work anymore.
## Changelog
[iOS] [Fixed] - Fixes iOS packager connection not work
Pull Request resolved: https://github.com/facebook/react-native/pull/25803
Test Plan:
1. Init a new project.
2. Run and input `curl http://localhost:8081/reload` in terminal. Reload operation can execute.
Differential Revision: D16458384
Pulled By: TheSavior
fbshipit-source-id: 27e7e02b5666a2131e995accd34e4da7bad42335
Summary:
^
No need for a constructor here.
Reviewed By: fkgozali
Differential Revision: D15056802
fbshipit-source-id: 32a2c541e5c1fa6336b7f6f2131772198740626c
Summary:
This PR adds initial support for Project Catalyst a.k.a. UIKitForMac. This is not yet meant for production, but this is enough for RNTester to successfully compile and mostly work :)
Some APIs are not supported on the Mac -- e.g. telephony, and deprecated APIs are removed on Mac ���-- those had to be ifdef'd out via platform checks.
The biggest limitation right now is that I couldn't get Web Socket code to successfully compile, and so there are a lot of temporary platform checks for that , and the RCTWebSocket.xcodeproj is marked as not supporting UIKitForMac. Again -- temporary, until someone with more knowledge knows how to fix this.
https://github.com/react-native-community/discussions-and-proposals/issues/131
## Changelog
[iOS] [Added] - Fixed compilation for macOS (Project Catalyst) -- not meant for production use yet
Pull Request resolved: https://github.com/facebook/react-native/pull/25427
Test Plan:
- Open RNTester/RNTester.xcodeproj with Xcode 10.2, run it like a normal iOS app -- make sure it compiles and runs correctly (no regression)
- Open the same project with Xcode 11 beta 2 (or higher) on macOS Catalina beta, select "My Mac" as device target, and run -- see that it actually compiles and runs. **Note** there are unfortunately some required steps:
- change build configuration to Release (because packager doesn't work correctly yet)
- change development team to yours if Xcode tells you to
- go to RNTester project → Build phases → Link binary with libraries, and change `platforms` for `libRCTWebSocket.a` to `iOS` (without Mac compatibility). I can't commit that change because it breaks compatibility with earlier Xcode versions
The two extra steps for successful compile will disappear once web socket compilation for Catalyst is fixed
Reviewed By: mmmulani
Differential Revision: D16088263
Pulled By: sammy-SC
fbshipit-source-id: 9c0b932b048e50a8e0f336eaa0612851b1909cae
Summary: Right now the entire RN core code lives inside one giant internal Buck target. This makes it hard to refactor the infra and to roll out TurboModules. For now, create a baseline for how RN core dir can be structured.
Reviewed By: PeteTheHeat
Differential Revision: D16001260
fbshipit-source-id: bba947e2fb75576a2e1f3f4c816575f1157dcb03
Summary:
Right now JS triggers a view manager command with the following code:
```
UIManager.dispatchViewManagerCommand(
nullthrows(this.scrollResponderGetScrollableNode()),
UIManager.getViewManagerConfig('RCTScrollView').Commands.scrollTo,
[x || 0, y || 0, animated !== false],
);
```
As we want to get rid of calls to UIManager, we need to stop looking for the integer defined in native from JavaScript. We will be changing methods like this to be:
```
UIManager.dispatchViewManagerCommand(
nullthrows(this.scrollResponderGetScrollableNode()),
'scrollTo',
[x || 0, y || 0, animated !== false],
);
```
We need to support ints and Strings to be backwards compatible, but ints will be deprecated.
This is the same change as made for Android here: https://github.com/facebook/react-native/commit/3cae6fa950eed54bccccf61a28c0e85d5a004c6c
Reviewed By: PeteTheHeat
Differential Revision: D15983041
fbshipit-source-id: 6cb0f3001553d1f9d26e7e8fb5481e16fbca6847
Summary:
We have too many options in the Dev Menu, and they're really hard to pick from. They're also somewhat conflicting. This replaces two menu choices that have a similar purpose (faster iteration cycle) with one.
"Fast Refresh" tries to only update the affected modules, but falls back to doing a full reload if the update can't be handled by the React components.
If for some reason you prefer the "Reload-on-Save" behavior, please:
- Reach out to me so I can learn more about your use case.
- As a workaround, you can add `if (__DEV__) require.Refresh.forceFullRefresh = true` to your app's entry point to always do a full refresh.
Also note that I only removed the user-facing part of "Reload-on-Save". So if you have automation depending on it, that's gonna keep working.
I moved it above Systrace since it's a more generic feature.
As a total aside nit, I renamed "Enable Inspector" and "Disable Inspector" to "Show Inspector" and "Hide Inspector" because... that's what those options do, really.
Reviewed By: rickhanlonii
Differential Revision: D15958697
fbshipit-source-id: 20e856d56f661fe4d39b5ab47d8c44754bf70f67
Summary:
Original commit changeset: 4849a8e94141
# Problem:
This diff caused https://github.com/facebook/react-native/issues/25339.
It was converting non string values to strings whenever the conversion was available.
The original problem that this diff was trying to solve is described here -> https://twitter.com/estevao_lucas/status/1117572702083190785?s=215
# Solution introduced by this diff
This diff introduced a conversion. So for any value that was meant to be string but wasn't we would attempt to convert it. Which is not always wanted.
# Solution for problem in the twitter
I think we should improve the error message if incorrect type is being passed as a prop. However this isn't a problem if views are Flow typed.
Reviewed By: cpojer
Differential Revision: D15964298
fbshipit-source-id: 3d027a378561b87e7a9e89fc5e39dc6f359d8d22
Summary: There are still race condition during bridge invalidation. Some modules may be accessing other modules during invalidation, but it's racing with the TM manager clearing the cache.
Reviewed By: JoshuaGross
Differential Revision: D15947488
fbshipit-source-id: 3bd51382264f538a03ca565b0f099da40c3daadf
Summary:
The necessity of this feature was removed in 2017. To intercept React Native gesture recognizer, implement UIGestureRecognizer delegate for conflicting gestures.
Here is the quote from the internal note:
> Previously we had lots of super weird bugs where React Native would inaccurately recognize touch gestures which were meant to be addressed by the native environment. Usually, these bugs occurred as unintentional taps happening right after swipe gestures. In all of these cases, we had to manually call method `cancelTouches` as part of an external gesture recognition process which prevented touch delivery to React Native. Furthermore, we had to delay touch delivery to React Native to wait for these cancellations. That code always looked like a hack (in the bad meaning of this word), like in some random place something dispatch event to another random place where something finally calls `cancelTouches`, yak. It was super annoying because it required adding this hack to all existing apps and screens, and because sometimes it was even too late to cancel touches.
> We fixed that. Instead of delaying touch delivery and waiting for calls to `cancelTouches`, we set up the React Native gesture recognizer in such way that it always agrees to fail in favor of any native gestures (from non-RN-based and served views which are placed higher in a hierarchy). React Native will now cancel all active touches itself so that we no longer need to call `cancelTouches` manually. We already removed all these calls and supported code from Facebook and Instagram.
See also: https://github.com/facebook/react-native/pull/25193
Reviewed By: PeteTheHeat
Differential Revision: D15734129
fbshipit-source-id: 289f77a437cb40199c591153b5801d24d0c10d1e
Summary:
Fixes build in Xcode 11 beta, the signature for `__unused` was changed. This adds a new check for the new style.
## Changelog
[iOS] [Fixed] - Xcode 11 beta build
Pull Request resolved: https://github.com/facebook/react-native/pull/25146
Differential Revision: D15628404
Pulled By: cpojer
fbshipit-source-id: 781a188a0e1562a3316fbe62920b12b03a44e4a7
Summary:
Fix Issue https://github.com/facebook/react-native/issues/24820
It's caused by `_labelsForTags` and `RCTPLTag` being out of sync, the crash might only be one of the issues that this bug was causing.
## Changelog
[iOS] [Fixed] - fix crash on performance logger
Pull Request resolved: https://github.com/facebook/react-native/pull/24821
Differential Revision: D15407291
Pulled By: PeteTheHeat
fbshipit-source-id: c8d2a047fceb9cec981c48fe5181d1b4cbf0976c
Summary:
Some ObjC NativeModules conform to `RCTInvalidating` protocol and implements `invalidate` method. This is typically used to clean things up during bridge teardown or reload. In TurboModule system the invalidate method can be replaced by pure destructors, but for backward compatibility, we call existing invalidate method on each module during teardown.
This also cleans up all existing LongLivedObject's.
Reviewed By: mdvacca, RSNara
Differential Revision: D15365655
fbshipit-source-id: 802844b39b5b7adb54970ea541f4d744bbf9e480
Summary:
With the introduction of TurboModules, it would be beneficial to measure the setup time of these modules, as we currently have it in place for NativeModules.
The instantiation of the TMs occurs in the `RCTTurboModuleManager`. In order to successfully measure the time it took to setup the module, we need to ensure that we don't take into account cached modules. As such, we need to:
1. Check if module is in `_turboModuleCache`
a. Start mark for `RCTPLTurboModuleSetup` tag if not found
2. Get the TM via `[self provideTurboModule:]`
3. Check if module is in `_turboModuleCache`
a. Stop mark for `RCTPLTurboModuleSetup` if we did not find module in cache prior to **step 2** and if it's now present in the cache.
b. Notify about setup time if the above is true.
4. Return TM
## Changelog
[iOS] [Added] - Gain insights on the the turbo module setup times by observing `RCTDidSetupModuleNotification`. The userInfo dictionary will contain the module name and setup time in milliseconds. These values can be extracted via `RCTDidSetupModuleNotificationModuleNameKey` and `RCTDidSetupModuleNotificationSetupTimeKey`.
Pull Request resolved: https://github.com/facebook/react-native/pull/24732
Differential Revision: D15362088
Pulled By: RSNara
fbshipit-source-id: e6a8044e4aba5a12ae63e9c7dbf707a17ec00180
Summary:
Fixes an issue introduced in https://github.com/facebook/react-native/pull/15894 that can cause events to be dispatched out of order.
Also reverted `viewTag` moved to optional property as it didn't actually work and makes code more complex.
[iOS] [Fixed] - Fix event ordering when combining coalescable and non-coalescable events
Pull Request resolved: https://github.com/facebook/react-native/pull/24693
Differential Revision: D15279513
Pulled By: shergin
fbshipit-source-id: 3c64aba6d644ea9564572e6de8330b59b51cf4a9
Summary:
When trying to load image using method "RCTImageFromLocalAssetURL", if URL's path in file system representation return null (in my case, imageUrl is base64 format returned from server so it's always null) then method "stringWithUTF8String" will raise an exception.
[iOS] [Fixed] - Fix exception when attempt to load image from file system
Pull Request resolved: https://github.com/facebook/react-native/pull/24457
Differential Revision: D15123680
Pulled By: shergin
fbshipit-source-id: bc34b3d7c79a8f9157729c4cf0486507c3c15ddf
Summary: The changes made in D14811733 introduced a regression in React Native's open source iOS tests.
Reviewed By: fkgozali
Differential Revision: D14895096
fbshipit-source-id: 4307b094e3bc94e9f703b0271a95a9b318bcd49a
Summary:
Currently, `RCTLocalAssetImageLoader` only support directory of `Library` and `App bundle`, actually, we need to support other directories like `tmp` or `Documents`. Otherwise, the local image load in `tmp` or `Documents` would be handled by `NSURLSession`, we don't need that.
<img width="405" alt="image" src="https://user-images.githubusercontent.com/5061845/54188126-0ba66100-44ea-11e9-9a7b-0f721100e9be.png">
[iOS] [Fixed] - Enhance search of directories when load local asset image
Pull Request resolved: https://github.com/facebook/react-native/pull/23857
Differential Revision: D14894136
Pulled By: shergin
fbshipit-source-id: 26361cd952a423467be9af9a84a80100d868776b
Summary:
The root cause comes down to the fact that historically `-DFOO=0` and `-DFOO=1` patterns have been used when it comes to preprocessor definitions and various engineers use `#ifdef FOO` and `#if FOO` interchangeably. That results in an incorrect pattern because the real evaluation is following:
- `FOO` not defined: `#if FOO` = `FALSE`, `#ifdef FOO` = `FALSE`.
- `-DFOO=0`: `#if FOO` = `FALSE`, `#ifdef FOO` = `TRUE`.
- `-DFOO=1`: `#if FOO` = `TRUE`, `#ifdef FOO` = `TRUE`.
Reviewed By: aditya7fb
Differential Revision: D14811733
fbshipit-source-id: a7fedc56ab0ce8eedcb48bda783739a4c1eecf81
Summary:
Xcode 10.2 forbids creating categories for swift class that uses `+load` method. In react-native categories like this are used to register swift classes as modules (macro `RCT_EXTERN_MODULE`) This PR changes it to use `__attribute__((constructor))` instead of objc `+load` method.
I introduced new macro for this purpose, `RCT_EXPORT_MODULE_NO_LOAD`, it expands in something like:
```
void RCTRegisterModule(Class);
+ (NSString *)moduleName {
return @"jsNameFoo";
}
__attribute__((constructor)) static void initialize_ObjcClassFoo{
RCTRegisterModule([ObjcClassFoo class]);
}
```
Functions marked with `__attribute__((constructor))` are run before main and after all `+load` methods, so it seems like correct thing to do.
Fixes https://github.com/facebook/react-native/issues/24139
Doc about loading order https://developer.apple.com/documentation/objectivec/nsobject/1418815-load?language=objc
[iOS] [Fixed] - Fix runtime crash in xcode 10.2 when using RCT_EXTERN_MODULE for swift classes.
Pull Request resolved: https://github.com/facebook/react-native/pull/24155
Reviewed By: javache
Differential Revision: D14668235
Pulled By: shergin
fbshipit-source-id: 0c19e69ce2a68327387809773848d4ecd36d7461
Summary:
This makes the RCTEvent protocol more generic to make it easier to use the event coalescing feature for type of events other than components. This does a few other improvements that will be useful in follow up PRs.
- Add `RCTComponentEvent` which is used instead of deprecated `[sendInputEventWithName:body:]` and remove that method completely (was only used at 2 places).
- Make `coalescingKey` optional for events that return NO from `canCoalesce`.
- Make `viewTag` optional for events that are not related to views.
- Fast path for events that return NO from `canCoalesce`.
- Add a missing test for event coalescing with different view tags.
Ended up making only one PR for all this since the changes are related and hard to separate.
**Migration**
Use a custom RCTEvent subclass with `[sendEvent:]` (preferred way to allow type safe events) or `RCTComponentEvent`.
**Test plan**
- Ran RCTEventDispatcher unit tests
- Tested manually in RNTester
Changelog:
[iOS] [Changed] - Remove deprecated RCTEvent method, sendInputEventWithName:body:
Pull Request resolved: https://github.com/facebook/react-native/pull/15894
Reviewed By: shergin
Differential Revision: D13726194
Pulled By: hramos
fbshipit-source-id: 11f63a99e08f46ec6b4f16f8d9949cdbf5c3fe13
Summary:
With our current infra, we support automatic conversion of method arguments using `RCTConvert`.
```
RCT_EXPORT_METHOD(foo:(RCTSound*) sound)
{
//...
}
```
```
interface RCTConvert (RCTSound)
+ (RCTSound *) RCTSound: (NSDictionary *) dict;
end
implementation RCTConvert (RCTSound)
+ (RCTSound *) RCTSound: (NSDictionary *) dict
{
//...
}
end
```
```
export interface Spec extends TurboModule {
+foo: (dict: Object) => void,
}
```
With this setup, when we call the foo method on the TurboModule in JS, we'd first convert `dict` from a JS Object to an `NSDictionary`. Then, because the `foo` method has an argument of type`RCTSound*`, and because `RCTConvert` has a method called `RCTSound`, before we invoke the `foo` NativeModule native method, we first convert the `NSDictionary` to `RCTSound` using `[RCTConvert RCTSound:obj]`. Essentially, if an argument type of a TurboModule method is neither a primitive type nor a struct (i.e: is an identifier), and it corresponds to a selector on `RCTConvert`, we call `[RCTConvert argumentType:obj]` to convert `obj` to the type `argumentType` before passing in `obj` as an argument to the NativeModule method call.
**Note:** I originally planned on using `NSMethodSignature` to get the argument types. Unfortunately, while the Objective C Runtime lets us know that the type is an identifier, it doesn't inform us which identifier it is. In other words, at runtime, we can't determine whether identifier represents `RCTSound *` or some other Objective C class. I figure this also the reason why the old code relies on the `RCT_EXPORT_METHOD` macros to implement this very same feature: https://git.io/fjJsC. It uses `NSMethodSignature` to switch on the argument type, and then uses the `RCTMethodInfo` struct to parse the argument type name, from which it constructs the RCTConvert selector.
One caveat of the current solution is that it won't work work unless we decorate our TurboModule methods with `RCT_EXPORT_METHOD`.
Reviewed By: fkgozali
Differential Revision: D14582661
fbshipit-source-id: 3c7dfb2059f031dba7495f12cbdf406b14f0b5b4
Summary:
The `RCTBridge` contains numerous definitions of notification names, which we can observe in order to get insights into the React Native performance.
The Android implementation is a little different, such that you can listen for any of the [following](https://github.com/facebook/react-native/blob/master/ReactAndroid/src/main/java/com/facebook/react/bridge/ReactMarkerConstants.java) marker constants, simply by including the following code:
```java
ReactMarker.addListener(new ReactMarker.MarkerListener() {
Override
public void logMarker(ReactMarkerConstants name, Nullable String tag, int instanceKey) {
Log.d("ReactNativeEvent", "name: "+ name.name() + " tag: " + tag);
}
});
```
This will allow you to perform the necessary processing, calculations as required.
---
This PR enables observing for the module setup event (`RCTDidSetupModuleNotification`) by including the respective module's name & setup time in milliseconds.
[iOS] [Added] - Gain insights on the module setup times by observing `RCTDidSetupModuleNotification`. The `userInfo` dictionary will contain the module name and setup time in milliseconds. These values can be extracted via `RCTDidSetupModuleNotificationModuleNameKey ` and `RCTDidSetupModuleNotificationSetupTimeKey`.
Pull Request resolved: https://github.com/facebook/react-native/pull/23859
Differential Revision: D14579066
Pulled By: PeteTheHeat
fbshipit-source-id: 52645127c3fc6aa5bd73e3bd471fccd79cb05c14
Summary:
We need to remove adding png file extension when path has not extension. Two reasons:
1. `imageWithContentsOfFile` or other `UIKit` methods can load png image correctly, even if path has not `png` file extension.
2. Sometimes, people may have file that actually not have file extension, it's the designated behavior for user. Like #23844 .
CC. sahrens cpojer .
[iOS] [Fixed] - Remove explicitly add png file extension when load local image
Pull Request resolved: https://github.com/facebook/react-native/pull/23864
Reviewed By: shergin
Differential Revision: D14425373
Pulled By: hramos
fbshipit-source-id: 3cc06c9a3d68cadf652c1de742f3cce26258c874
Summary:
<!-- Explain the **motivation** for making this change. What existing problem does the pull request solve? -->
I have used RN for a long time, and for all this time, crash reporting has been less great than native development crash reporting. At some point, companies like sentry, bugsnag and a bunch of others started supporting sourcemaps for js crashes in RN, which helped a lot.
But native crashes were (and still are) much harder to diagnose.
..Until now :D
I have make a repo of a sample RN app, included this PR in it, and some code and screenshots to help.
The repo is [here](https://github.com/pvinis/react-native-project-with-crash-heaven-pr).
I was trying to get good crash reports from native crashes in iOS for a looong time. I spoke with people in sentry, in bugsnag and more, and I could not get this solved. There was no clear way to get the **native** crashed to display correctly.
I made two repos here, one for [sentry](https://github.com/pvinis/SentryBadStack) and one for [bugsnag](https://github.com/pvinis/BugsnagBadStack), demonstrating the correct js handling and the bad native handling.
After all this, and talks with their support, twitter etc, I investigated further, on **why** this was happening. I thought there must be some reason that native crashes look bad in all the tools, and in the same way. Maybe it's not their fault, or up to them to fix it, or maybe they didn't have the experience to fix it.
In a test project I created, I checked what's up with the `RCTFatalException`, and I found out that the React Native code is catching the `NSException`s that come from any native modules of a RN app and converting it into an string and sending it to `RCTFatal` that created an `NSError` out of that string. Then it checks if the app has set a fatal error handler and if not, goes ahead and throws that `NSError`.
The problem here is that `NSException` has a bunch more info that the resulting `NSError` is missing or is altering. Turning the callstack into a string renders crash reporting tools useless as they are missing the original place the exception was thrown, symbols, return addresses etc. In both repos above it can be seen that both tools were thinking that the error happened somewhere in the `RCTFatal` function, and it did, since we create it there, losing all the previous useful info of the original exception. That leaves us with just a very long name including a callstack, but very hard to actually map this to the code and dsym.
I added a fatal exception handler, that mirrors the fatal error handler, as the error handler is used around React Native internal code.
Then I stopped making a string out of the original `NSException` and calling `RCTFatal`, and I simply throw the exception. This way no info is lost!
Finally, I added some code examples of native and js crashes and added a part in the `RNTester` app, so people can see how a js and a native error look like while debugging, as well as try to compile the app in release mode and see how the crash report would look like if they connect it to bugsnag or sentry or their tool of choice.
I have attached some images at the bottom of this PR, and you can find some in the 3 repos I linked above.
[iOS] [Fixed] - Changed the way iOS native module exceptions get handled. Instead of making them into an `NSError` and lose the context and callstack, we keep them as `NSException`s and propagate them.
[General] [Added] - Example code for native crashes in iOS and Android, with buttons on RNTester, so developers can see how these look when debugging, as well as the crash reports in release mode.
Pull Request resolved: https://github.com/facebook/react-native/pull/23691
Reviewed By: fkgozali
Differential Revision: D14276366
Pulled By: cpojer
fbshipit-source-id: b308d5608e1432d7676447347ae77c0721094e62
Summary:
We currently rely on the Paper UIManager calling `uiManagerWillPerformMounting` to flush the animated operations queue, which includes starting and stopping animations. This mostly works right now because Fabric always starts after Paper, but sometimes Paper doesn't fire `uiManagerWillPerformMounting` for a while, which can delay an animation starting.
To fix this, I force a flush of the queues on the UIThread whenever start or stop is called. This should be safe because the order of animation operations is still preserved, and start/stop are (almost?) always called in dedicated event handler loops, so any other updates like changing the way nodes are attached should already have been processed from a previous JS execution loop.
Reviewed By: JoshuaGross
Differential Revision: D14313502
fbshipit-source-id: 2a2b0c614fd1a591bd04b6b3fafcc09ff6c9d6e7
Summary:
Between invalidating a bridge and suspending its JS thread, native modules may have their methods called.
Only warn when a native module has been invalidated, which happens right before its JS thread is suspended.
Avoid initializing a native module's instance if its bridge is invalidated.
/cc fkgozali https://github.com/facebook/react-native/commit/f94521244798f859648d1769f397102c06d763f0#commitcomment-32467567
[iOS] [Fixed] - Properly validate JS->native method calls
Pull Request resolved: https://github.com/facebook/react-native/pull/23658
Differential Revision: D14287594
Pulled By: fkgozali
fbshipit-source-id: 89dd1906a0c55f3f48ba4ff220aac0cddf2eb822
Summary:
We have parse code to try to support exported method parameter annotated `__unused` and `nullable`, but actually, seems we don't support it entirely, for example, we parse `__unused` firstly, then we parse `nullable`, actually, this case not exist, because `nullable` macro must appear right after `(`, before `__unused`, so we can't parse success, leads to error signature and crash.
[iOS] [Fixed] - Fixed method invoke when both nullable and __unused exist
Pull Request resolved: https://github.com/facebook/react-native/pull/23726
Differential Revision: D14298563
Pulled By: cpojer
fbshipit-source-id: 934e1d384a5d67b7bbf117fd2dec51f50979c979
Summary:
We need to check `body[@"target"]` wether equal to `nil`, if it is, return to prevent crash.
[iOS] [Fixed] - Fixed crash if event doesn't have body parameter
Pull Request resolved: https://github.com/facebook/react-native/pull/23711
Differential Revision: D14298543
Pulled By: cpojer
fbshipit-source-id: d5e8cd69438f323ae102e61618c0371a01bee347
Summary:
For the `NullabilityPostfix`, we can use `_Nullable` or `__nullable`. Please see https://developer.apple.com/swift/blog/?id=25 , and we also use it in our code.
[iOS] [Added] - Added support of __nullable and __nonnull for module exported method signature
Pull Request resolved: https://github.com/facebook/react-native/pull/23731
Differential Revision: D14298483
Pulled By: cpojer
fbshipit-source-id: 4dd3188f51be3808ea2b97ce19aa7a85ea1f4a9e
Summary:
We already only support `iOS9+`, so we can remove all compatible codes now.
[iOS] [Fixed] - Remove compatible system code for iOS8 and before
Pull Request resolved: https://github.com/facebook/react-native/pull/23656
Differential Revision: D14224986
Pulled By: hramos
fbshipit-source-id: cac9ffe6788dd3eaf4f4f5f2b219f325ba78e85f
Summary:
When an image source is parsed via `RCTImageFromLocalAssetURL` there seem to be certain situations in which `imageName` is empty from `RCTBundlePathForURL`. Any call to `UIImage imageNamed` with a an empty parameter will throw an exception:
```
CUICatalog: Invalid asset name supplied: '(null)'
```
In my case, the asset URL was pointing to an image in the application sandbox rather than the `NSBundle`. In this case `UIImage imageNamed` was throwing before the call to `NSData dataWithContentsOfURL` below could correctly resolve the image.
This change simply skips the call to `UIImage imageNamed` if no `imageName` value is set.
Pull Request resolved: https://github.com/facebook/react-native/pull/20120
Differential Revision: D14163101
Pulled By: cpojer
fbshipit-source-id: ceec95c02bf21b739962ef5618947a5726ba0473
Summary:
Add an option to dev menu to change packager location on the fly on iOS (similar to Dev Settings in Android)
Pull Request resolved: https://github.com/facebook/react-native/pull/21970
Differential Revision: D14162776
Pulled By: cpojer
fbshipit-source-id: 3cca4f4fbd8c599bd5342ba1ae64905a03270d48
Summary:
As part of #22609, this fixes yet more warnings.
- Adding more __unused to params.
- Refactors `isPackagerRunning` to use NSURLSession.
- Turns off suspicious comma warnings
[iOS] [Fixed] - Xcode Warnings
Pull Request resolved: https://github.com/facebook/react-native/pull/23565
Differential Revision: D14161151
Pulled By: cpojer
fbshipit-source-id: 339874711eca718fc6151e84737ccc975225d736
Summary:
This PR reduces the number of warnings in React from 68 to 18. Mostly by marking unused variables. RNTester's warnings are more than halved.
[iOS] [Fixed] - Xcode warnings
Pull Request resolved: https://github.com/facebook/react-native/pull/23553
Differential Revision: D14151339
Pulled By: hramos
fbshipit-source-id: 8255330bf910a69a4c03051d91d7b0de3fadf2d1
Kevin Gozali
Mehdi Mulani
Héctor Ramos
Samuel Susla
Rick Hanlon
Eli White
zhongwuzw
Min ho Kim
Jeff Thomas
Radosław Pietruszewski
Jonny Burger
Dan Abramov
Valentin Shergin
Eric Lewis
Kyle Fang
RCiesielczuk
Janic Duplessis
licd
Harry Nguyen
Ram N
Gunnar Kudrjavets
Alfred Zien
Ramanpreet Nara
Pavlos Vinieratos
Spencer Ahrens
aleclarson
Albert Martin
Luis Rivera
