reader_task_either library

Classes

ReaderTaskEither<R, E, A>

Functions

alt<C, L, R>(ReaderTaskEither<C, L, R> orElse(L left)) → ReaderTaskEither<C, L, R> Function(ReaderTaskEither<C, L, R>)

If the given ReaderTaskEither is an Left, then unwrap the result and transform it into an alternative ReaderTaskEither.

as<C, L, R1, R2>(R2 r2) → ReaderTaskEither<C, L, R2> Function(ReaderTaskEither<C, L, R1> task)

ask<R, E>() → ReaderTaskEither<R, E, R>

Projects a value from the global context in a ReaderTaskEither.

asks<R, E, A>(A f(R r)) → ReaderTaskEither<R, E, A>

Projects a value from the global context in a ReaderTaskEither.

asUnit<C, L, R>(ReaderTaskEither<C, L, R> task) → ReaderTaskEither<C, L, Unit>

chainNullableK<C, L, R, R2>(R2? f(R right), L onNone(R right)) → ReaderTaskEither<C, L, R2> Function(ReaderTaskEither<C, L, R> taskEither)

Chainable variant of fromNullableK.

chainTryCatchK<C, L, R, R2>(FutureOr<R2> task(R value), L onError(dynamic err, StackTrace stackTrace)) → ReaderTaskEither<C, L, R2> Function(ReaderTaskEither<C, L, R>)

A chainable variant of tryCatchK.

delay<C, L, R>(Duration d) → ReaderTaskEither<C, L, R> Function(ReaderTaskEither<C, L, R>)

Pause execution of the task by the given Duration.

Do<C, L, R>(DoFunction<C, L, R> f) → ReaderTaskEither<C, L, R>

filter<C, L, R>(bool predicate(R value), L orElse(R value)) → ReaderTaskEither<C, L, R> Function(ReaderTaskEither<C, L, R> taskEither)

Conditionally filter the ReaderTaskEither, transforming Right values to Left.

flatMap<C, L, R1, R2>(ReaderTaskEither<C, L, R2> f(R1 a)) → ReaderTaskEither<C, L, R2> Function(ReaderTaskEither<C, L, R1>)

Composes computations in sequence, using the return value from the previous computation.

flatMapEither<C, L, R1, R2>(Either<L, R2> f(R1 a)) → ReaderTaskEither<C, L, R2> Function(ReaderTaskEither<C, L, R1>)

flatMapFirst<C, L, R>(ReaderTaskEither<C, L, dynamic> f(R a)) → ReaderTaskEither<C, L, R> Function(ReaderTaskEither<C, L, R>)

Composes computations in sequence, using the return value from the previous computation. Discarding the result.

flatMapFirstEither<C, L, R>(Either<L, dynamic> f(R a)) → ReaderTaskEither<C, L, R> Function(ReaderTaskEither<C, L, R>)

flatMapFirstTask<C, L, R>(Task f(R a)) → ReaderTaskEither<C, L, R> Function(ReaderTaskEither<C, L, R>)

flatMapFirstTaskEither<C, L, R>(TaskEither<L, dynamic> f(R a)) → ReaderTaskEither<C, L, R> Function(ReaderTaskEither<C, L, R>)

flatMapOption<C, L, A, B>(Option<B> f(A a), L onNone(A a)) → ReaderTaskEither<C, L, B> Function(ReaderTaskEither<C, L, A>)

flatMapReader<C, L, R1, R2>(Reader<C, R2> f(R1 a)) → ReaderTaskEither<C, L, R2> Function(ReaderTaskEither<C, L, R1>)

flatMapReaderTask<C, L, R1, R2>(ReaderTask<C, R2> f(R1 a)) → ReaderTaskEither<C, L, R2> Function(ReaderTaskEither<C, L, R1>)

flatMapTask<C, L, R1, R2>(Task<R2> f(R1 a)) → ReaderTaskEither<C, L, R2> Function(ReaderTaskEither<C, L, R1>)

flatMapTaskEither<C, L, R1, R2>(TaskEither<L, R2> f(R1 a)) → ReaderTaskEither<C, L, R2> Function(ReaderTaskEither<C, L, R1>)

flatMapTuple2<C, L, R, R2>(ReaderTaskEither<C, L, R2> f(R value)) → ReaderTaskEither<C, L, dynamic> Function(ReaderTaskEither<C, L, R> fa)

A variant of flatMap that appends the result to a tuple.

flatMapTuple3<C, L, R, R2, R3>(ReaderTaskEither<C, L, R3> f(dynamic a)) → ReaderTaskEither<C, L, Tuple3<R, R2, R3>> Function(ReaderTaskEither<C, L, dynamic> fa)

A variant of flatMap that appends the result to a tuple.

fold<R, L, A, B>(B onLeft(L left), B onRight(A right)) → ReaderTask<R, B> Function(ReaderTaskEither<R, L, A>)

Unwraps the Either value, returning a ReaderTask that resolves to the result.

fromEither<C, L, R>(Either<L, R> either) → ReaderTaskEither<C, L, R>

Returns a ReaderTaskEither that resolves to the given Either.

fromNullable<C, L, R>(R? value, L onNone()) → ReaderTaskEither<C, L, R>

Create a TaskEither from a nullable value. onNone is executed if the given value is null.

fromNullableK<C, L, R, A>(R? f(A value), L onNone(A value)) → ReaderTaskEither<C, L, R> Function(A value)

Create a TaskEither from a nullable value. onNone is executed if the value (given to the returned function) is null.

fromOption<C, L, R>(L onNone()) → ReaderTaskEither<C, L, R> Function(Option<R> option)

Create a ReaderTaskEither from an Option. If it is None, then the ReaderTaskEither will resolve to a Left containing the result from executing onNone.

fromPredicate<C, L, R>(R r, bool f(R r), L orElse(R r)) → ReaderTaskEither<C, L, R>

If the function returns true, then the resolved Either will be a Right containing the given value.

fromPredicateK<C, L, R>(bool f(R r), L orElse(R r)) → ReaderTaskEither<C, L, R> Function(R r)

If the function returns true, then the resolved Either will be a Right containing the given value.

fromReader<C, L, R>(Reader<C, R> f) → ReaderTaskEither<C, L, R>

Transforms a Reader into a ReaderTaskEither, wrapping the result in an Right.

fromReaderTask<C, L, R>(ReaderTask<C, R> f) → ReaderTaskEither<C, L, R>

Transforms a ReaderTask into a ReaderTaskEither, wrapping the result in an Right.

fromTask<C, L, R>(Task<R> task) → ReaderTaskEither<C, L, R>

Transforms a Task into a ReaderTaskEither, wrapping the result in an Right.

fromTaskEither<C, L, R>(TaskEither<L, R> taskEither) → ReaderTaskEither<C, L, R>

Returns a ReaderTaskEither that resolves to the given TaskEither.

getOrElse<C, L, R>(R onLeft(L left)) → ReaderTask<C, R> Function(ReaderTaskEither<C, L, R> taskEither)

Unwrap the Either value. Resolves to the unwrapped Right value, but if the ReaderTaskEither is an Left, the onLeft callback determines the fallback value.

left<R, E, A>(E e) → ReaderTaskEither<R, E, A>

Projects a TE.left value in a ReaderTaskEither.

makeDo<C, L>() → ReaderTaskEither<C, L, R> Function<R>(DoFunction<C, L, R> )

Create a Do notation factory for the given generics

map<C, L, R1, R2>(R2 f(R1 a)) → ReaderTaskEither<C, L, R2> Function(ReaderTaskEither<C, L, R1>)

Composes computations in sequence, using the return value from the previous computation.

mapLeft<C, L1, L2, R>(L2 f(L1 a)) → ReaderTaskEither<C, L2, R> Function(ReaderTaskEither<C, L1, R>)

Composes computations in sequence, using the return value from the previous computation.

orElse<C, L, R>(ReaderTaskEither<C, L, R> orElse) → ReaderTaskEither<C, L, R> Function(ReaderTaskEither<C, L, R>)

Similar to alt, but the alternative ReaderTaskEither is given directly.

pure<C, L, R, R2>(R2 a) → ReaderTaskEither<C, L, R2> Function(ReaderTaskEither<C, L, R>)

Replace the ReaderTaskEither with one that resolves to an Right containing the given value.

right<R, E, A>(A a) → ReaderTaskEither<R, E, A>

Projects a TE.right value in a ReaderTaskEither.

sequence<C, L, R>(Iterable<ReaderTaskEither<C, L, R>> arr) → ReaderTaskEither<C, L, IList<R>>

sequenceSeq<C, L, R>(Iterable<ReaderTaskEither<C, L, R>> arr) → ReaderTaskEither<C, L, IList<R>>

tap<C, L, R>(FutureOr<void> f(R value)) → ReaderTaskEither<C, L, R> Function(ReaderTaskEither<C, L, R>)

Run a side effect on a Right value. The side effect can optionally return a Future.

tapLeft<C, L, R>(FutureOr<void> f(L value)) → ReaderTaskEither<C, L, R> Function(ReaderTaskEither<C, L, R>)

Run a side effect on a Left value. The side effect can optionally return a Future.

toFuture<R, E, A>(ReaderTaskEither<R, E, A> f) → Future<A> Function(R r)

toFutureVoid<C, L>(void onLeft(L value)) → Future<void> Function(C) Function(ReaderTaskEither<C, L, dynamic>)

Convert a ReaderTaskEither into a Future<void>, that runs the side effect on Left.

traverseIterable<A, C, L, R>(ReaderTaskEither<C, L, R> f(A a)) → ReaderTaskEither<C, L, IList<R>> Function(Iterable<A>)

traverseIterableSeq<A, C, L, R>(ReaderTaskEither<C, L, R> f(A a)) → ReaderTaskEither<C, L, IList<R>> Function(Iterable<A>)

tryCatch<C, L, R>(FutureOr<R> task(), L onError(dynamic err, StackTrace stackTrace)) → ReaderTaskEither<C, L, R>

Runs the given task, and returns the result as an Right. If it throws an error, the the error is passed to onError, which determines the Left value.

tryCatchK<C, A, L, R>(FutureOr<R> task(A value), L onError(dynamic err, StackTrace stackTrace)) → ReaderTaskEither<C, L, R> Function(A value)

A variant of tryCatch that accepts an external parameter.

tryCatchK2<A, B, C, L, R>(FutureOr<R> task(A a, B b), L onError(dynamic err, StackTrace stackTrace)) → ReaderTaskEither<C, L, R> Function(A a, B b)

A variant of tryCatch that accepts two external parameters.

unit<R, E>() → ReaderTaskEither<R, E, Unit>

zipRight<C, L, R1, R2>(ReaderTaskEither<C, L, R2> chain) → ReaderTaskEither<C, L, R2> Function(ReaderTaskEither<C, L, R1> task)

Typedefs

DoFunction<C, L, R> = Future<R> Function(_DoAdapter<C, L> $, C context)