Debugging WG June

[Andjeliko]

Introduction (2 min)

• Monthly cadence
• Who is missing? Let us know who do you believe is relevant to debugging workspace in React and we will work to bring them into this group.

Discussion items (15 min)

• New React Native JS Debugging experience, plan for H2 2023
• Accepted RFC: Decoupling Flipper from React Native core
• State of JSC debugging and remote ("web") debugging in React Native
  • The Meta team's focus is on direct (on-device) debugging with Hermes (the default JS engine). Contributions welcome!
  • Remote debugging ("web debugging", "Chrome debugging") fundamentally can't work with JSI modules (Reanimated) / new architecture --> will eventually be deprecated and removed. Already hidden in the Dev Menu in RN 0.73: Remove remote debugging from dev menu facebook/react-native#36754.
  • JSC iOS direct debugging w/Safari works (barely), needs documentation and polish. Would ideally be integrated directly into our Dev Menu flow.
  • JSC Android direct debugging does not work --> can probably be made to work with some dedicated effort. WebKitGTK has a Web Inspector we should be able to use, in theory. Might require changes to https://github.com/react-native-community/jsc-android-buildscripts and the debugger socket proxying logic in Metro / RN.

Q&A (remainder)

Next steps

ACTION: We do need team with Debugging papercuts, both helping resolve them but reporting them as well. This can span non Herme s workflows.