Summary:
# Context
In https://github.com/facebook/react/pull/16141 we imported `ReactFiberErrorDialog` unchanged from React. That implementation was not idempotent: if passed the same error instance multiple times, it would amend its `message` property every time, eventually leading to bloat and low-signal logs.
The message bloat problem is most evident when rendering multiple `lazy()` components that expose the same Error reference to React (e.g. due to some cache that vends the same rejected Promise multiple times).
More broadly, there's a need for structured, machine-readable logging to replace stringly-typed interfaces in both the production and development use cases.
# This diff
* We leave the user-supplied `message` field intact and instead do all the formatting inside `ExceptionsManager`. To avoid needless complexity, this **doesn't** always have the exact same output as the old code (but it does come close). See tests for the specifics.
* The only mutation we do on React-captured error instances is setting the `componentStack` expando property. This replaces any previously-captured component stack rather than adding to it, and so doesn't create bloat.
* We also report the exception fields `componentStack`, unformatted `message` (as `originalMessage`) and `name` directly to `NativeExceptionsManager` for future use.
Reviewed By: cpojer
Differential Revision: D16331228
fbshipit-source-id: 7b0539c2c83c7dd4e56db8508afcf367931ac71d
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/25671
Moves the RN-specific `ReactFiberErrorDialog` implementation from React to RN for easier iteration. Also adds new unit tests.
This current change is additive, so we're compatible with the current React renderer which still uses `ExceptionsManager` and not the file added here. After the corresponding React update we can remove `ExceptionsManager` from the RN private interface entirely.
Reviewed By: cpojer
Differential Revision: D16278938
fbshipit-source-id: 0c2c0c3e65e524e079730ae3b0cc23e0c0bdc5fd
Moti Zilberman