Description

The Dart/Flutter SDK currently supports PlatformExceptions and ExceptionCause.

Related links

• sentry-dart/flutter/lib/src/event_processor/platform_exception_event_processor.dart

  Line 5 in 681136b

  class PlatformExceptionEventProcessor implements EventProcessor {

• sentry-dart/dart/lib/src/exception_cause_extractor.dart

  Line 32 in 681136b

  abstract class ExceptionCauseExtractor<T> {

• Sentry RFC https://github.com/getsentry/rfcs/blob/main/text/0079-exception-groups.md#example-event
• Example JS impl feat: Support AggregateErrors in LinkedErrors integration sentry-javascript#8463

Notes

• I'm not aware of how used or not the AggregateErrors are. After a quick search doesn't seem too common.
• Implementing this might likely change grouping so it should be done in a major version.
• Dart could add the parent-child relationship to the linked errors as described in the RFC.

### Related
- [ ] https://github.com/getsentry/sentry/issues/64088
- [ ] https://github.com/getsentry/sentry-java/pull/3184

### Tasks
- [x] Implement parent-child relationship for `PlatformException`
- [x] Implement parent-child relationship for `ExceptionCause`

Example PlatformException chaining