Summary:
This refactors the systrace module to:
1) Migrate it to ESM
2) Fix the typing of certain parameters (e.g.: `eventName` and `cookie` shouldn't be optional)
2) Fix TypeScript definitions
3) Add inline documentation for methods
4) Add args (metadata) to all methods where it's supported in fbsystrace (`endEvent` and `endAsyncEvent`).
5) Make `setEnabled` a no-op. The only place where this method is called is from native, when starting a profile session. The problem is that implementation for Systrace in OSS (https://github.com/facebook/react-native/blob/main/ReactAndroid/src/main/java/com/facebook/systrace/Systrace.java#L40-L42) doesn't support listeners, so this wouldn't work correctly there. It also doesn't get called with Venice, so instead of fixing it for Venice with the same Meta-internal behavior, I decided to fix it for everyone with the synchronous method.
I'm not considering this a change in the public API of systrace because this module has been broken in OSS for ages and I'm assuming no one's using it at this point.
Changelog: [internal]
Reviewed By: rshest
Differential Revision: D40095842
fbshipit-source-id: fee41b2b7ae23aefe059e390c55d139db75247c5
Summary:
React Native's TS definitions are currently mostly stored in one monolithic file. This change splits the definitions up to correspond to the source files they came from, and are placed next to the source files. I think this should help inform, and make it easy to update the TS declarations when touching the Flow file.
I noticed as part of the change that the typings have not yet removed many APIs that were removed from RN. This is bad, since it means using the removed/non-functional API doesn't cause typechecker errors. Locating typings next to source should prevent that from being able to happen.
The organization here means individual TS declarations can declare what will be in the RN entrypoint, which is a little confusing. Seems like a good potential next refactor, beyond the literal translation I did.
Changelog:
[General][Changed] - Place TS Declarations Alongside Source Files
Reviewed By: lunaleaps, rshest
Differential Revision: D39796598
fbshipit-source-id: b36366466fd1976bdd2d4c8f7a4104a33c457a07
Rubén Norte
Nick Gerleman