clean_signals 2.1.0

A lightweight use-case and controller framework for signals-based Flutter and Dart applications. Typed results, sealed failures, ref-counted activity tracking and declarative retries — without rxdart or dartz.

Changelog

2.1.0

Added

• Controller.isDisposed — protected getter exposing the controller's disposal state, so subclasses can guard plain signal writes that follow an await (if (isDisposed) return;) without re-implementing their own _disposed flag. runInto and watch already guard their own writes; this covers state that doesn't fit the AsyncState shape (#6).

Fixed

• ActivityTracker.track no longer writes to its disposed counter signal when a tracked operation is still in flight during dispose() — an in-flight run(...) used to throw SignalsWriteAfterDisposeError from its finally block when the controller was disposed mid-operation.

2.0.0

Renamed from base_core to clean_signals (the original name was taken on pub.dev). Update imports to package:clean_signals/clean_signals.dart.

Complete rewrite. The package is now pure Dart (no Flutter SDK dependency) and built on signals instead of rxdart; dartz has been removed entirely.

Added

• Result<T> — sealed Success / Failed union with fold, map, flatMap, getOrElse, Result.guard, and toAsyncState() bridging into signals' AsyncState.
• Controller — signals-based view-model base class with run, runInto, watch, ref-counted isLoading, a broadcast failures stream, autoEffect and onDispose lifecycle cleanup.
• RetryPolicy — per-call declarative retries with exponential backoff and a retryIf predicate (defaults to Failure.isRetryable).
• ActivityTracker — ref-counted loading state as ReadonlySignals.
• asyncStateSignal<T>() — Signal<AsyncState<T>> seeded with loading.
• Failure.cause / Failure.stackTrace / Failure.isRetryable; Failure implements Exception so it can be thrown from lower layers and captured by UseCase.call.
• example/ — a full clean-architecture Flutter sample app (Team Directory).

Changed

• UseCase.execute returns Future<Result<R>>; call guards against all thrown errors, converting them to Failed results.
• StreamUseCase (renamed from StreamingUseCase) emits Result events and converts stream errors into Failed events without breaking cancellation.

Removed

• dartz (Either, Tuple2, Trampoline) and rxdart dependencies.
• DataManager, UseCaseGenerator, UseCaseExecutor, StreamingUseCaseManager and the type-keyed runUseCase<U, P> registry — replaced by Controller with directly-invoked, fully typed use cases.
• BaseBloc, BlocProvider, MultiBlocProvider, BaseState, ValueStreamBuilder, match — use signals' SignalBuilder and a DI container (e.g. get_it) instead.
• RetryableFailure and the global retry loop — replaced by RetryPolicy.

1.0.0

• First release.