async_error_boundary 0.1.0

Declarative error boundary widget for Flutter inspired by React's Error Boundary. Catch errors thrown by descendants and render fallback UI with reset support.

0.1.0

Initial release.

Features

• ErrorBoundary widget that catches errors thrown during the build of its descendants and renders a builder(context, error, reset) fallback, inspired by React's Error Boundary.
• onError callback for logging or reporting caught errors with the original stack trace.
• onReset callback that fires when the boundary is reset, receiving an optional argument forwarded from the fallback's reset function.
• resetKeys for automatic recovery: when any value in the list changes between rebuilds, the error state is cleared and onReset is invoked with null, mirroring react-error-boundary semantics.
• ErrorBoundary.of(context) returns an ErrorBoundaryProvider exposing resetBoundary and showBoundary for imperative control from descendant widgets.
• ErrorBoundaryState and ErrorFallbackBuilder typedefs for consumers that want to spell out the boundary's state shape or build their own fallbacks.

Documentation

• Bilingual README (English / Japanese) with usage examples covering the builder fallback, onError / onReset, resetKeys, and nested boundaries.