Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/41385
Changelog: Internal
Adding a Cxx TM example which adds a listener and returns a subscription to remove that listener from the TM.
You should be able to use this with React Hooks - https://legacy.reactjs.org/docs/hooks-reference.html
E.g.
```
useEffect(() => {
const subscription = NativeCxxModuleExample.setValueCallbackWithSubscription(
callbackValue => // use it
);
return subscription;
});
```
Reviewed By: shwanton
Differential Revision: D50473063
fbshipit-source-id: 4e9b92aeccff1771eb4ffad6bdaa20ba7f18435f
Summary:
This PR is adding examples of Turbo Modules functions throwing runtime exceptions and asserts. This should make it easier to collaborate and develop the error reporting for a new architecture that is being discussed in the React Native New Architecture Working Group -> https://github.com/reactwg/react-native-new-architecture/discussions/122.
I'm not sure what return type should be used for the JS function returning `Promise<void>` in Cxx, I used [`AsyncPromise<jsi::Value>`](https://github.com/facebook/react-native/pull/36729/files#diff-9cebc75f48fd35fd6fef71138f98dfd0ba28a754b2aab0d6fe44fd685f74ce16R135), what would you use, I've not found `void` type to use?
### Added functions
The table shows the current behavior.
<table>
<tr>
<td> Function
<td> Description
<td> Turbo Module
<td> Cxx Module
<tr>
<td> voidFuncThrows
<td> function with return type void throws a runtime exception
<td> platform error no JS stack trace
<td> JS error no native stack trace
<tr>
<td> getObjectThrows
<td> function with return type object throws a runtime exception
<td> JS error no platform stack trace
<td> JS error no native stack trace
<tr>
<td> promiseThrows
<td> function with return type promise throws a runtime exception before settling the promise
<td> platform error no JS stack trace
<td> JS error no native stack trace
<tr>
<td> voidFuncAssert
<td> function with return type void asserts
<td> platform error no JS stack trace
<td> native error no JS stack trace
<tr>
<td> getObjectAssert
<td> function with return type object asserts
<td> JS error no platform stack trace
<td> native error no JS stack trace
<tr>
<td> promiseAssert
<td> function with return type promise asserts before settling the promise
<td> platform error no JS stack trace
<td> native error no JS stack trace
</table>
## Changelog:
<!-- Help reviewers and the release process by writing your own changelog entry.
Pick one each for the category and type tags:
[ANDROID|GENERAL|IOS|INTERNAL] [BREAKING|ADDED|CHANGED|DEPRECATED|REMOVED|FIXED|SECURITY] - Message
For more details, see:
https://reactnative.dev/contributing/changelogs-in-pull-requests
-->
[INTERNAL] [ADDED] - Error reporting examples in rn-tester turbo modules
Pull Request resolved: https://github.com/facebook/react-native/pull/36729
Test Plan:
This PR doesn't change any RN behavior. Only shows the current state by adding an example to rn-tester.
I'm happy to add these examples to the unit/integration test, just point me to where would be a good place.
Reviewed By: rshest
Differential Revision: D44623027
Pulled By: javache
fbshipit-source-id: d9cc04852b05d810ed11d7a94f1b2d455ef554a5
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/36581
Found that the current codegen did not properly handle a return type of `?bool` because the branch of `constexpr (is_optional_v<T>)` assumed that T was always a JSI value that needed conversion, and `supportsToJs<bool, bool>` is false.
Changelog: [General][Fixed] Issue with TurboModule C++ codegen with optional return types
Reviewed By: christophpurrer
Differential Revision: D44302352
fbshipit-source-id: 0863de06da4e5e3c18f8a1ced7179d76d8e87b99
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/36030
Generate enum types in c++ turbo modules.
For enums in the ts schema file such as:
```
export enum NumEnum {
ONE = 1,
TWO = 2,
}
```
This would export enums and the relevant Bridging to js and from js code to the spec H files such as:
```
#pragma mark - SampleTurboModuleCxxNumEnum
enum SampleTurboModuleCxxNumEnum { ONE, TWO };
template <>
struct Bridging<SampleTurboModuleCxxNumEnum> {
static SampleTurboModuleCxxNumEnum fromJs(jsi::Runtime &rt, int32_t value) {
if (value == 1) {
return SampleTurboModuleCxxNumEnum::ONE;
} else if (value == 2) {
return SampleTurboModuleCxxNumEnum::TWO;
} else {
throw jsi::JSError(rt, "No appropriate enum member found for value");
}
}
static jsi::Value toJs(jsi::Runtime &rt, SampleTurboModuleCxxNumEnum value) {
if (value == SampleTurboModuleCxxNumEnum::ONE) {
return bridging::toJs(rt, 1);
} else if (value == SampleTurboModuleCxxNumEnum::TWO) {
return bridging::toJs(rt, 2);
} else {
throw jsi::JSError(rt, "No appropriate enum member found for enum value");
}
}
};
```
That code would allow us to use these enums in the cxx files like this:
```
NativeCxxModuleExampleCxxEnumInt getNumEnum(
jsi::Runtime &rt,
NativeCxxModuleExampleCxxEnumInt arg);
```
Changelog: [General] [Added] Generate enum types that would be allowed to be used as well as string/number in c++ turbo modules generators
Reviewed By: christophpurrer
Differential Revision: D42884147
fbshipit-source-id: d34d1fc7ba268b570821dc108444196f69a431b2
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/35138
Changelog:
[General][Added] - Add a C++ only TurboModule example (for Android/iOS/macOS/Windows)
react-native@0.69 introduced a new bridging layer to ease integration for pure C++ TurboModules using C++ std:: types directly instead of the lower level jsi:: types:
https://github.com/facebook/react-native/tree/v0.69.0/ReactCommon/react/bridging
This bridging layer can be used in JSI functions or more conveniently in C++ TurboModules.
Here is a example of an C++ only TurboModule which will work on Android and iOS and macOS/Windows (using microsoft/react-native-macos|windows) only using flow/TypeScript and standard C++ types.
C++ only TurboModules are very handy as they do not require to work with JSI APIs - instead std:: or custom C++ can by used.
Reviewed By: javache
Differential Revision: D39011736
fbshipit-source-id: 84c833d8540671fde8505f1aeb0265074b248730
Christoph Purrer
Krystof Woldrich
Pieter De Baets
Ruslan Shestopalyuk
Vitali Zaidman