Result<T, E extends BaseException> class sealed

Algebraic data type for success/failure flows that plays nicely with Bloc/Riverpod/Notifier state management.

Implementers

Available extensions

Properties

hashCode → int: The hash code for this object.
no setterinherited
isErr → bool: Returns true when this result contains an error.
no setter
isOk → bool: Returns true when this result contains a value.
no setter
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited

andThen(Result<U, E> next(T value)) → Result<U, E>: Chains another computation only when this result is successful.
andThenAsync(Future<Result<U, E>> next(T value)) → Future<Result<U, E>>: Async variant of andThen for future-returning pipelines.
map(U f(T value)) → Result<U, E>: Maps the inner value when successful, preserving errors.
mapAsync(Future f(T value)) → Future<Result<U, E>>: Available on Result<T, E>, provided by the ResultX extension
Maps the success value using an async transformer, preserving errors.
mapErr<F extends BaseException>(F f(E error)) → Result<T, F>: Maps the error type when present, preserving successes.
match<R>({required R ok(T value), required R err(E error)}) → R: Pattern matches on the result, invoking ok or err accordingly.
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
toString() → String: A string representation of this object.
inherited
unwrap() → T: Unwraps the result, throwing if it contains an error.
unwrapOr(T fallback) → T: Returns the inner value or fallback when this is an error.
unwrapOrElse(T f(E error)) → T: Returns the inner value or computes one via f.