Innovenergy_trunk/frontend/node_modules/fp-ts/lib/TaskEither.d.ts

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/**
* ```ts
* interface TaskEither<E, A> extends Task<Either<E, A>> {}
* ```
*
* `TaskEither<E, A>` represents an asynchronous computation that either yields a value of type `A` or fails yielding an
* error of type `E`. If you want to represent an asynchronous computation that never fails, please see `Task`.
*
* @since 2.0.0
*/
import { Alt2, Alt2C } from './Alt'
import { Applicative2, Applicative2C } from './Applicative'
import { Apply1, Apply2 } from './Apply'
import { Bifunctor2 } from './Bifunctor'
import { Chain2 } from './Chain'
import { Compactable2C } from './Compactable'
import * as E from './Either'
import { Filterable2C } from './Filterable'
import { FromEither2 } from './FromEither'
import { FromIO2 } from './FromIO'
import { FromTask2 } from './FromTask'
import { Lazy } from './function'
import { Functor2 } from './Functor'
import { IO } from './IO'
import { IOEither } from './IOEither'
import { Monad2, Monad2C } from './Monad'
import { MonadIO2 } from './MonadIO'
import { MonadTask2, MonadTask2C } from './MonadTask'
import { MonadThrow2, MonadThrow2C } from './MonadThrow'
import { Monoid } from './Monoid'
import { Option } from './Option'
import { Pointed2 } from './Pointed'
import { Predicate } from './Predicate'
import { ReadonlyNonEmptyArray } from './ReadonlyNonEmptyArray'
import { Refinement } from './Refinement'
import { Semigroup } from './Semigroup'
import * as T from './Task'
import { TaskOption } from './TaskOption'
import Either = E.Either
import Task = T.Task
/**
* @category model
* @since 2.0.0
*/
export interface TaskEither<E, A> extends Task<Either<E, A>> {}
/**
* @category constructors
* @since 2.0.0
*/
export declare const left: <E = never, A = never>(e: E) => TaskEither<E, A>
/**
* @category constructors
* @since 2.0.0
*/
export declare const right: <E = never, A = never>(a: A) => TaskEither<E, A>
/**
* @category constructors
* @since 2.0.0
*/
export declare const rightTask: <E = never, A = never>(ma: Task<A>) => TaskEither<E, A>
/**
* @category constructors
* @since 2.0.0
*/
export declare const leftTask: <E = never, A = never>(me: Task<E>) => TaskEither<E, A>
/**
* @category constructors
* @since 2.0.0
*/
export declare const rightIO: <E = never, A = never>(ma: IO<A>) => TaskEither<E, A>
/**
* @category constructors
* @since 2.0.0
*/
export declare const leftIO: <E = never, A = never>(me: IO<E>) => TaskEither<E, A>
/**
* @category conversions
* @since 2.7.0
*/
export declare const fromIO: <A, E = never>(fa: IO<A>) => TaskEither<E, A>
/**
* @category conversions
* @since 2.7.0
*/
export declare const fromTask: <A, E = never>(fa: Task<A>) => TaskEither<E, A>
/**
* @category conversions
* @since 2.0.0
*/
export declare const fromEither: <E, A>(fa: Either<E, A>) => TaskEither<E, A>
/**
* @category conversions
* @since 2.0.0
*/
export declare const fromIOEither: <E, A>(fa: IOEither<E, A>) => TaskEither<E, A>
/**
* @category conversions
* @since 2.11.0
*/
export declare const fromTaskOption: <E>(onNone: Lazy<E>) => <A>(fa: TaskOption<A>) => TaskEither<E, A>
/**
* @category pattern matching
* @since 2.10.0
*/
export declare const match: <E, B, A>(onLeft: (e: E) => B, onRight: (a: A) => B) => (ma: TaskEither<E, A>) => Task<B>
/**
* Less strict version of [`match`](#match).
*
* The `W` suffix (short for **W**idening) means that the handler return types will be merged.
*
* @category pattern matching
* @since 2.10.0
*/
export declare const matchW: <E, B, A, C>(
onLeft: (e: E) => B,
onRight: (a: A) => C
) => (ma: TaskEither<E, A>) => Task<B | C>
/**
* The `E` suffix (short for **E**ffect) means that the handlers return an effect (`Task`).
*
* @category pattern matching
* @since 2.10.0
*/
export declare const matchE: <E, A, B>(
onLeft: (e: E) => Task<B>,
onRight: (a: A) => Task<B>
) => (ma: TaskEither<E, A>) => Task<B>
/**
* Alias of [`matchE`](#matche).
*
* @category pattern matching
* @since 2.0.0
*/
export declare const fold: <E, A, B>(
onLeft: (e: E) => T.Task<B>,
onRight: (a: A) => T.Task<B>
) => (ma: TaskEither<E, A>) => T.Task<B>
/**
* Less strict version of [`matchE`](#matche).
*
* The `W` suffix (short for **W**idening) means that the handler return types will be merged.
*
* @category pattern matching
* @since 2.10.0
*/
export declare const matchEW: <E, B, A, C>(
onLeft: (e: E) => Task<B>,
onRight: (a: A) => Task<C>
) => (ma: TaskEither<E, A>) => Task<B | C>
/**
* Alias of [`matchEW`](#matchew).
*
* @category pattern matching
* @since 2.10.0
*/
export declare const foldW: <E, B, A, C>(
onLeft: (e: E) => T.Task<B>,
onRight: (a: A) => T.Task<C>
) => (ma: TaskEither<E, A>) => T.Task<B | C>
/**
* @category error handling
* @since 2.0.0
*/
export declare const getOrElse: <E, A>(onLeft: (e: E) => Task<A>) => (ma: TaskEither<E, A>) => Task<A>
/**
* Less strict version of [`getOrElse`](#getorelse).
*
* The `W` suffix (short for **W**idening) means that the handler return type will be merged.
*
* @category error handling
* @since 2.6.0
*/
export declare const getOrElseW: <E, B>(onLeft: (e: E) => Task<B>) => <A>(ma: TaskEither<E, A>) => Task<A | B>
/**
* Transforms a `Promise` that may reject to a `Promise` that never rejects and returns an `Either` instead.
*
* See also [`tryCatchK`](#trycatchk).
*
* @example
* import { left, right } from 'fp-ts/Either'
* import { tryCatch } from 'fp-ts/TaskEither'
*
* tryCatch(() => Promise.resolve(1), String)().then(result => {
* assert.deepStrictEqual(result, right(1))
* })
* tryCatch(() => Promise.reject('error'), String)().then(result => {
* assert.deepStrictEqual(result, left('error'))
* })
*
* @category interop
* @since 2.0.0
*/
export declare const tryCatch: <E, A>(f: Lazy<Promise<A>>, onRejected: (reason: unknown) => E) => TaskEither<E, A>
/**
* Converts a function returning a `Promise` to one returning a `TaskEither`.
*
* @category interop
* @since 2.5.0
*/
export declare const tryCatchK: <E, A extends readonly unknown[], B>(
f: (...a: A) => Promise<B>,
onRejected: (reason: unknown) => E
) => (...a: A) => TaskEither<E, B>
/**
* @category conversions
* @since 2.10.0
*/
export declare const toUnion: <E, A>(fa: TaskEither<E, A>) => Task<E | A>
/**
* @category conversions
* @since 2.12.0
*/
export declare const fromNullable: <E>(e: E) => <A>(a: A) => TaskEither<E, NonNullable<A>>
/**
* @category lifting
* @since 2.12.0
*/
export declare const fromNullableK: <E>(
e: E
) => <A extends ReadonlyArray<unknown>, B>(
f: (...a: A) => B | null | undefined
) => (...a: A) => TaskEither<E, NonNullable<B>>
/**
* @category sequencing
* @since 2.12.0
*/
export declare const chainNullableK: <E>(
e: E
) => <A, B>(f: (a: A) => B | null | undefined) => (ma: TaskEither<E, A>) => TaskEither<E, NonNullable<B>>
/**
* Returns `ma` if is a `Right` or the value returned by `onLeft` otherwise.
*
* See also [alt](#alt).
*
* @example
* import * as E from 'fp-ts/Either'
* import { pipe } from 'fp-ts/function'
* import * as TE from 'fp-ts/TaskEither'
*
* async function test() {
* const errorHandler = TE.orElse((error: string) => TE.right(`recovering from ${error}...`))
* assert.deepStrictEqual(await pipe(TE.right('ok'), errorHandler)(), E.right('ok'))
* assert.deepStrictEqual(await pipe(TE.left('ko'), errorHandler)(), E.right('recovering from ko...'))
* }
*
* test()
*
* @category error handling
* @since 2.0.0
*/
export declare const orElse: <E1, A, E2>(
onLeft: (e: E1) => TaskEither<E2, A>
) => (ma: TaskEither<E1, A>) => TaskEither<E2, A>
/**
* Less strict version of [`orElse`](#orelse).
*
* The `W` suffix (short for **W**idening) means that the return types will be merged.
*
* @category error handling
* @since 2.10.0
*/
export declare const orElseW: <E1, E2, B>(
onLeft: (e: E1) => TaskEither<E2, B>
) => <A>(ma: TaskEither<E1, A>) => TaskEither<E2, A | B>
/**
* @category error handling
* @since 2.11.0
*/
export declare const orElseFirst: <E, B>(
onLeft: (e: E) => TaskEither<E, B>
) => <A>(ma: TaskEither<E, A>) => TaskEither<E, A>
/**
* The `W` suffix (short for **W**idening) means that the error types will be merged.
*
* @category error handling
* @since 2.11.0
*/
export declare const orElseFirstW: <E1, E2, B>(
onLeft: (e: E1) => TaskEither<E2, B>
) => <A>(ma: TaskEither<E1, A>) => TaskEither<E1 | E2, A>
/**
* @category error handling
* @since 2.12.0
*/
export declare const orElseFirstIOK: <E, B>(onLeft: (e: E) => IO<B>) => <A>(ma: TaskEither<E, A>) => TaskEither<E, A>
/**
* @category error handling
* @since 2.12.0
*/
export declare const orElseFirstTaskK: <E, B>(
onLeft: (e: E) => Task<B>
) => <A>(ma: TaskEither<E, A>) => TaskEither<E, A>
/**
* @category error handling
* @since 2.11.0
*/
export declare const orLeft: <E1, E2>(onLeft: (e: E1) => Task<E2>) => <A>(fa: TaskEither<E1, A>) => TaskEither<E2, A>
/**
* @since 2.0.0
*/
export declare const swap: <E, A>(ma: TaskEither<E, A>) => TaskEither<A, E>
/**
* @category lifting
* @since 2.11.0
*/
export declare const fromTaskOptionK: <E>(
onNone: Lazy<E>
) => <A extends readonly unknown[], B>(f: (...a: A) => TaskOption<B>) => (...a: A) => TaskEither<E, B>
/**
* The `W` suffix (short for **W**idening) means that the error types will be merged.
*
* @category sequencing
* @since 2.12.3
*/
export declare const chainTaskOptionKW: <E2>(
onNone: Lazy<E2>
) => <A, B>(f: (a: A) => TaskOption<B>) => <E1>(ma: TaskEither<E1, A>) => TaskEither<E2 | E1, B>
/**
* @category sequencing
* @since 2.11.0
*/
export declare const chainTaskOptionK: <E>(
onNone: Lazy<E>
) => <A, B>(f: (a: A) => TaskOption<B>) => (ma: TaskEither<E, A>) => TaskEither<E, B>
/**
* @category lifting
* @since 2.4.0
*/
export declare const fromIOEitherK: <E, A extends readonly unknown[], B>(
f: (...a: A) => IOEither<E, B>
) => (...a: A) => TaskEither<E, B>
/**
* Less strict version of [`chainIOEitherK`](#chainioeitherk).
*
* The `W` suffix (short for **W**idening) means that the error types will be merged.
*
* @category sequencing
* @since 2.6.1
*/
export declare const chainIOEitherKW: <E2, A, B>(
f: (a: A) => IOEither<E2, B>
) => <E1>(ma: TaskEither<E1, A>) => TaskEither<E1 | E2, B>
/**
* @category sequencing
* @since 2.4.0
*/
export declare const chainIOEitherK: <E, A, B>(
f: (a: A) => IOEither<E, B>
) => (ma: TaskEither<E, A>) => TaskEither<E, B>
/**
* `map` can be used to turn functions `(a: A) => B` into functions `(fa: F<A>) => F<B>` whose argument and return types
* use the type constructor `F` to represent some computational context.
*
* @category mapping
* @since 2.0.0
*/
export declare const map: <A, B>(f: (a: A) => B) => <E>(fa: TaskEither<E, A>) => TaskEither<E, B>
/**
* Map a pair of functions over the two type arguments of the bifunctor.
*
* @category mapping
* @since 2.0.0
*/
export declare const bimap: <E, G, A, B>(f: (e: E) => G, g: (a: A) => B) => (fa: TaskEither<E, A>) => TaskEither<G, B>
/**
* Map a function over the first type argument of a bifunctor.
*
* @category error handling
* @since 2.0.0
*/
export declare const mapLeft: <E, G>(f: (e: E) => G) => <A>(fa: TaskEither<E, A>) => TaskEither<G, A>
/**
* @since 2.0.0
*/
export declare const ap: <E, A>(fa: TaskEither<E, A>) => <B>(fab: TaskEither<E, (a: A) => B>) => TaskEither<E, B>
/**
* Less strict version of [`ap`](#ap).
*
* The `W` suffix (short for **W**idening) means that the error types will be merged.
*
* @since 2.8.0
*/
export declare const apW: <E2, A>(
fa: TaskEither<E2, A>
) => <E1, B>(fab: TaskEither<E1, (a: A) => B>) => TaskEither<E1 | E2, B>
/**
* Composes computations in sequence, using the return value of one computation to determine the next computation.
*
* @category sequencing
* @since 2.0.0
*/
export declare const chain: <E, A, B>(f: (a: A) => TaskEither<E, B>) => (ma: TaskEither<E, A>) => TaskEither<E, B>
/**
* Less strict version of [`chain`](#chain).
*
* The `W` suffix (short for **W**idening) means that the error types will be merged.
*
* @category sequencing
* @since 2.6.0
*/
export declare const chainW: <E2, A, B>(
f: (a: A) => TaskEither<E2, B>
) => <E1>(ma: TaskEither<E1, A>) => TaskEither<E1 | E2, B>
/**
* Less strict version of [`flatten`](#flatten).
*
* The `W` suffix (short for **W**idening) means that the error types will be merged.
*
* @category sequencing
* @since 2.11.0
*/
export declare const flattenW: <E1, E2, A>(mma: TaskEither<E1, TaskEither<E2, A>>) => TaskEither<E1 | E2, A>
/**
* @category sequencing
* @since 2.0.0
*/
export declare const flatten: <E, A>(mma: TaskEither<E, TaskEither<E, A>>) => TaskEither<E, A>
/**
* Identifies an associative operation on a type constructor. It is similar to `Semigroup`, except that it applies to
* types of kind `* -> *`.
*
* In case of `TaskEither` returns `fa` if is a `Right` or the value returned by `that` otherwise.
*
* See also [orElse](#orelse).
*
* @example
* import * as E from 'fp-ts/Either'
* import { pipe } from 'fp-ts/function'
* import * as TE from 'fp-ts/TaskEither'
*
* async function test() {
* assert.deepStrictEqual(
* await pipe(
* TE.right(1),
* TE.alt(() => TE.right(2))
* )(),
* E.right(1)
* )
* assert.deepStrictEqual(
* await pipe(
* TE.left('a'),
* TE.alt(() => TE.right(2))
* )(),
* E.right(2)
* )
* assert.deepStrictEqual(
* await pipe(
* TE.left('a'),
* TE.alt(() => TE.left('b'))
* )(),
* E.left('b')
* )
* }
*
* test()
*
* @category error handling
* @since 2.0.0
*/
export declare const alt: <E, A>(that: Lazy<TaskEither<E, A>>) => (fa: TaskEither<E, A>) => TaskEither<E, A>
/**
* Less strict version of [`alt`](#alt).
*
* The `W` suffix (short for **W**idening) means that the error and the return types will be merged.
*
* @category error handling
* @since 2.9.0
*/
export declare const altW: <E2, B>(
that: Lazy<TaskEither<E2, B>>
) => <E1, A>(fa: TaskEither<E1, A>) => TaskEither<E2, A | B>
/**
* @category constructors
* @since 2.0.0
*/
export declare const of: <E = never, A = never>(a: A) => TaskEither<E, A>
/**
* @since 2.7.0
*/
export declare const throwError: MonadThrow2<URI>['throwError']
/**
* @category type lambdas
* @since 2.0.0
*/
export declare const URI = 'TaskEither'
/**
* @category type lambdas
* @since 2.0.0
*/
export declare type URI = typeof URI
declare module './HKT' {
interface URItoKind2<E, A> {
readonly [URI]: TaskEither<E, A>
}
}
/**
* The default [`ApplicativePar`](#applicativepar) instance returns the first error, if you want to
* get all errors you need to provide a way to concatenate them via a `Semigroup`.
*
* @example
* import * as E from 'fp-ts/Either'
* import { pipe } from 'fp-ts/function'
* import * as RA from 'fp-ts/ReadonlyArray'
* import * as S from 'fp-ts/Semigroup'
* import * as string from 'fp-ts/string'
* import * as T from 'fp-ts/Task'
* import * as TE from 'fp-ts/TaskEither'
*
* interface User {
* readonly id: string
* readonly name: string
* }
*
* const remoteDatabase: ReadonlyArray<User> = [
* { id: 'id1', name: 'John' },
* { id: 'id2', name: 'Mary' },
* { id: 'id3', name: 'Joey' }
* ]
*
* const fetchUser = (id: string): TE.TaskEither<string, User> =>
* pipe(
* remoteDatabase,
* RA.findFirst((user) => user.id === id),
* TE.fromOption(() => `${id} not found`)
* )
*
* async function test() {
* assert.deepStrictEqual(
* await pipe(['id4', 'id5'], RA.traverse(TE.ApplicativePar)(fetchUser))(),
* E.left('id4 not found') // <= first error
* )
*
* const Applicative = TE.getApplicativeTaskValidation(
* T.ApplyPar,
* pipe(string.Semigroup, S.intercalate(', '))
* )
*
* assert.deepStrictEqual(
* await pipe(['id4', 'id5'], RA.traverse(Applicative)(fetchUser))(),
* E.left('id4 not found, id5 not found') // <= all errors
* )
* }
*
* test()
*
* @category error handling
* @since 2.7.0
*/
export declare function getApplicativeTaskValidation<E>(A: Apply1<T.URI>, S: Semigroup<E>): Applicative2C<URI, E>
/**
* The default [`Alt`](#alt) instance returns the last error, if you want to
* get all errors you need to provide a way to concatenate them via a `Semigroup`.
*
* See [`getAltValidation`](./Either.ts.html#getaltvalidation).
*
* @category error handling
* @since 2.7.0
*/
export declare function getAltTaskValidation<E>(S: Semigroup<E>): Alt2C<URI, E>
/**
* @category filtering
* @since 2.10.0
*/
export declare const getCompactable: <E>(M: Monoid<E>) => Compactable2C<'TaskEither', E>
/**
* @category filtering
* @since 2.1.0
*/
export declare function getFilterable<E>(M: Monoid<E>): Filterable2C<URI, E>
/**
* @category instances
* @since 2.7.0
*/
export declare const Functor: Functor2<URI>
/**
* @category mapping
* @since 2.10.0
*/
export declare const flap: <A>(a: A) => <E, B>(fab: TaskEither<E, (a: A) => B>) => TaskEither<E, B>
/**
* @category instances
* @since 2.10.0
*/
export declare const Pointed: Pointed2<URI>
/**
* Runs computations in parallel.
*
* @category instances
* @since 2.10.0
*/
export declare const ApplyPar: Apply2<URI>
/**
* Combine two effectful actions, keeping only the result of the first.
*
* @since 2.0.0
*/
export declare const apFirst: <E, B>(second: TaskEither<E, B>) => <A>(first: TaskEither<E, A>) => TaskEither<E, A>
/**
* Less strict version of [`apFirst`](#apfirst).
*
* The `W` suffix (short for **W**idening) means that the error types will be merged.
*
* @since 2.12.0
*/
export declare const apFirstW: <E2, B>(
second: TaskEither<E2, B>
) => <E1, A>(first: TaskEither<E1, A>) => TaskEither<E1 | E2, A>
/**
* Combine two effectful actions, keeping only the result of the second.
*
* @since 2.0.0
*/
export declare const apSecond: <E, B>(second: TaskEither<E, B>) => <A>(first: TaskEither<E, A>) => TaskEither<E, B>
/**
* Less strict version of [`apSecond`](#apsecond).
*
* The `W` suffix (short for **W**idening) means that the error types will be merged.
*
* @since 2.12.0
*/
export declare const apSecondW: <E2, B>(
second: TaskEither<E2, B>
) => <E1, A>(first: TaskEither<E1, A>) => TaskEither<E1 | E2, B>
/**
* Runs computations in parallel.
*
* @category instances
* @since 2.7.0
*/
export declare const ApplicativePar: Applicative2<URI>
/**
* Runs computations sequentially.
*
* @category instances
* @since 2.10.0
*/
export declare const ApplySeq: Apply2<URI>
/**
* Runs computations sequentially.
*
* @category instances
* @since 2.7.0
*/
export declare const ApplicativeSeq: Applicative2<URI>
/**
* @category instances
* @since 2.10.0
*/
export declare const Chain: Chain2<URI>
/**
* @category instances
* @since 2.10.0
*/
export declare const Monad: Monad2<URI>
/**
* @category instances
* @since 2.10.0
*/
export declare const MonadIO: MonadIO2<URI>
/**
* @category instances
* @since 2.10.0
*/
export declare const MonadTask: MonadTask2<URI>
/**
* @category instances
* @since 2.10.0
*/
export declare const MonadThrow: MonadThrow2<URI>
/**
* Composes computations in sequence, using the return value of one computation to determine the next computation and
* keeping only the result of the first.
*
* @category sequencing
* @since 2.0.0
*/
export declare const chainFirst: <E, A, B>(f: (a: A) => TaskEither<E, B>) => (ma: TaskEither<E, A>) => TaskEither<E, A>
/**
* Less strict version of [`chainFirst`](#chainfirst).
*
* The `W` suffix (short for **W**idening) means that the error types will be merged.
*
* @category sequencing
* @since 2.8.0
*/
export declare const chainFirstW: <E2, A, B>(
f: (a: A) => TaskEither<E2, B>
) => <E1>(ma: TaskEither<E1, A>) => TaskEither<E1 | E2, A>
/**
* @category instances
* @since 2.7.0
*/
export declare const Bifunctor: Bifunctor2<URI>
/**
* @category instances
* @since 2.7.0
*/
export declare const Alt: Alt2<URI>
/**
* @category instances
* @since 2.10.0
*/
export declare const FromEither: FromEither2<URI>
/**
* @category conversions
* @since 2.0.0
*/
export declare const fromOption: <E>(onNone: Lazy<E>) => <A>(fa: Option<A>) => TaskEither<E, A>
/**
* @category lifting
* @since 2.10.0
*/
export declare const fromOptionK: <E>(
onNone: Lazy<E>
) => <A extends ReadonlyArray<unknown>, B>(f: (...a: A) => Option<B>) => (...a: A) => TaskEither<E, B>
/**
* @category sequencing
* @since 2.10.0
*/
export declare const chainOptionK: <E>(
onNone: Lazy<E>
) => <A, B>(f: (a: A) => Option<B>) => (ma: TaskEither<E, A>) => TaskEither<E, B>
/**
* @category sequencing
* @since 2.4.0
*/
export declare const chainEitherK: <E, A, B>(f: (a: A) => E.Either<E, B>) => (ma: TaskEither<E, A>) => TaskEither<E, B>
/**
* Less strict version of [`chainEitherK`](#chaineitherk).
*
* The `W` suffix (short for **W**idening) means that the error types will be merged.
*
* @category sequencing
* @since 2.6.1
*/
export declare const chainEitherKW: <E2, A, B>(
f: (a: A) => Either<E2, B>
) => <E1>(ma: TaskEither<E1, A>) => TaskEither<E1 | E2, B>
/**
* @category sequencing
* @since 2.12.0
*/
export declare const chainFirstEitherK: <A, E, B>(
f: (a: A) => E.Either<E, B>
) => (ma: TaskEither<E, A>) => TaskEither<E, A>
/**
* Less strict version of [`chainFirstEitherK`](#chainfirsteitherk).
*
* The `W` suffix (short for **W**idening) means that the error types will be merged.
*
* @category sequencing
* @since 2.12.0
*/
export declare const chainFirstEitherKW: <A, E2, B>(
f: (a: A) => E.Either<E2, B>
) => <E1>(ma: TaskEither<E1, A>) => TaskEither<E1 | E2, A>
/**
* @category lifting
* @since 2.0.0
*/
export declare const fromPredicate: {
<E, A, B extends A>(refinement: Refinement<A, B>, onFalse: (a: A) => E): (a: A) => TaskEither<E, B>
<E, A>(predicate: Predicate<A>, onFalse: (a: A) => E): <B extends A>(b: B) => TaskEither<E, B>
<E, A>(predicate: Predicate<A>, onFalse: (a: A) => E): (a: A) => TaskEither<E, A>
}
/**
* @category filtering
* @since 2.0.0
*/
export declare const filterOrElse: {
<E, A, B extends A>(refinement: Refinement<A, B>, onFalse: (a: A) => E): (ma: TaskEither<E, A>) => TaskEither<E, B>
<E, A>(predicate: Predicate<A>, onFalse: (a: A) => E): <B extends A>(mb: TaskEither<E, B>) => TaskEither<E, B>
<E, A>(predicate: Predicate<A>, onFalse: (a: A) => E): (ma: TaskEither<E, A>) => TaskEither<E, A>
}
/**
* Less strict version of [`filterOrElse`](#filterorelse).
*
* The `W` suffix (short for **W**idening) means that the error types will be merged.
*
* @category filtering
* @since 2.9.0
*/
export declare const filterOrElseW: {
<A, B extends A, E2>(refinement: Refinement<A, B>, onFalse: (a: A) => E2): <E1>(
ma: TaskEither<E1, A>
) => TaskEither<E1 | E2, B>
<A, E2>(predicate: Predicate<A>, onFalse: (a: A) => E2): <E1, B extends A>(
mb: TaskEither<E1, B>
) => TaskEither<E1 | E2, B>
<A, E2>(predicate: Predicate<A>, onFalse: (a: A) => E2): <E1>(ma: TaskEither<E1, A>) => TaskEither<E1 | E2, A>
}
/**
* @category lifting
* @since 2.4.0
*/
export declare const fromEitherK: <E, A extends ReadonlyArray<unknown>, B>(
f: (...a: A) => E.Either<E, B>
) => (...a: A) => TaskEither<E, B>
/**
* @category instances
* @since 2.10.0
*/
export declare const FromIO: FromIO2<URI>
/**
* @category lifting
* @since 2.10.0
*/
export declare const fromIOK: <A extends ReadonlyArray<unknown>, B>(
f: (...a: A) => IO<B>
) => <E = never>(...a: A) => TaskEither<E, B>
/**
* @category sequencing
* @since 2.10.0
*/
export declare const chainIOK: <A, B>(f: (a: A) => IO<B>) => <E>(first: TaskEither<E, A>) => TaskEither<E, B>
/**
* @category sequencing
* @since 2.10.0
*/
export declare const chainFirstIOK: <A, B>(f: (a: A) => IO<B>) => <E>(first: TaskEither<E, A>) => TaskEither<E, A>
/**
* @category instances
* @since 2.10.0
*/
export declare const FromTask: FromTask2<URI>
/**
* @category lifting
* @since 2.10.0
*/
export declare const fromTaskK: <A extends ReadonlyArray<unknown>, B>(
f: (...a: A) => T.Task<B>
) => <E = never>(...a: A) => TaskEither<E, B>
/**
* @category sequencing
* @since 2.10.0
*/
export declare const chainTaskK: <A, B>(f: (a: A) => T.Task<B>) => <E>(first: TaskEither<E, A>) => TaskEither<E, B>
/**
* @category sequencing
* @since 2.10.0
*/
export declare const chainFirstTaskK: <A, B>(f: (a: A) => T.Task<B>) => <E>(first: TaskEither<E, A>) => TaskEither<E, A>
/**
* Convert a node style callback function to one returning a `TaskEither`
*
* **Note**. If the function `f` admits multiple overloadings, `taskify` will pick last one. If you want a different
* behaviour, add an explicit type annotation
*
* ```ts
* // readFile admits multiple overloadings
*
* // const readFile: (a: string) => TaskEither<NodeJS.ErrnoException, Buffer>
* const readFile = taskify(fs.readFile)
*
* const readFile2: (filename: string, encoding: string) => TaskEither<NodeJS.ErrnoException, Buffer> = taskify(
* fs.readFile
* )
* ```
*
* @example
* import { taskify } from 'fp-ts/TaskEither'
* import * as fs from 'fs'
*
* // const stat: (a: string | Buffer) => TaskEither<NodeJS.ErrnoException, fs.Stats>
* const stat = taskify(fs.stat)
* assert.strictEqual(stat.length, 0)
*
* @category interop
* @since 2.0.0
*/
export declare function taskify<L, R>(f: (cb: (e: L | null | undefined, r?: R) => void) => void): () => TaskEither<L, R>
export declare function taskify<A, L, R>(
f: (a: A, cb: (e: L | null | undefined, r?: R) => void) => void
): (a: A) => TaskEither<L, R>
export declare function taskify<A, B, L, R>(
f: (a: A, b: B, cb: (e: L | null | undefined, r?: R) => void) => void
): (a: A, b: B) => TaskEither<L, R>
export declare function taskify<A, B, C, L, R>(
f: (a: A, b: B, c: C, cb: (e: L | null | undefined, r?: R) => void) => void
): (a: A, b: B, c: C) => TaskEither<L, R>
export declare function taskify<A, B, C, D, L, R>(
f: (a: A, b: B, c: C, d: D, cb: (e: L | null | undefined, r?: R) => void) => void
): (a: A, b: B, c: C, d: D) => TaskEither<L, R>
export declare function taskify<A, B, C, D, E, L, R>(
f: (a: A, b: B, c: C, d: D, e: E, cb: (e: L | null | undefined, r?: R) => void) => void
): (a: A, b: B, c: C, d: D, e: E) => TaskEither<L, R>
/**
* Make sure that a resource is cleaned up in the event of an exception (\*). The release action is called regardless of
* whether the body action throws (\*) or returns.
*
* (\*) i.e. returns a `Left`
*
* @since 2.0.0
*/
export declare const bracket: <E, A, B>(
acquire: TaskEither<E, A>,
use: (a: A) => TaskEither<E, B>,
release: (a: A, e: E.Either<E, B>) => TaskEither<E, void>
) => TaskEither<E, B>
/**
* Less strict version of [`bracket`](#bracket).
*
* The `W` suffix (short for **W**idening) means that the error types will be merged.
*
* @since 2.12.0
*/
export declare const bracketW: <E1, A, E2, B, E3>(
acquire: TaskEither<E1, A>,
use: (a: A) => TaskEither<E2, B>,
release: (a: A, e: E.Either<E2, B>) => TaskEither<E3, void>
) => TaskEither<E1 | E2 | E3, B>
/**
* @category do notation
* @since 2.9.0
*/
export declare const Do: TaskEither<never, {}>
/**
* @category do notation
* @since 2.8.0
*/
export declare const bindTo: <N extends string>(
name: N
) => <E, A>(fa: TaskEither<E, A>) => TaskEither<E, { readonly [K in N]: A }>
declare const let_: <N extends string, A, B>(
name: Exclude<N, keyof A>,
f: (a: A) => B
) => <E>(fa: TaskEither<E, A>) => TaskEither<E, { readonly [K in N | keyof A]: K extends keyof A ? A[K] : B }>
export {
/**
* @category do notation
* @since 2.13.0
*/
let_ as let
}
/**
* @category do notation
* @since 2.8.0
*/
export declare const bind: <N extends string, A, E, B>(
name: Exclude<N, keyof A>,
f: (a: A) => TaskEither<E, B>
) => (ma: TaskEither<E, A>) => TaskEither<E, { readonly [K in N | keyof A]: K extends keyof A ? A[K] : B }>
/**
* The `W` suffix (short for **W**idening) means that the error types will be merged.
*
* @category do notation
* @since 2.8.0
*/
export declare const bindW: <N extends string, A, E2, B>(
name: Exclude<N, keyof A>,
f: (a: A) => TaskEither<E2, B>
) => <E1>(fa: TaskEither<E1, A>) => TaskEither<
E1 | E2,
{
readonly [K in keyof A | N]: K extends keyof A ? A[K] : B
}
>
/**
* @category do notation
* @since 2.8.0
*/
export declare const apS: <N extends string, A, E, B>(
name: Exclude<N, keyof A>,
fb: TaskEither<E, B>
) => (fa: TaskEither<E, A>) => TaskEither<E, { readonly [K in N | keyof A]: K extends keyof A ? A[K] : B }>
/**
* Less strict version of [`apS`](#aps).
*
* The `W` suffix (short for **W**idening) means that the error types will be merged.
*
* @category do notation
* @since 2.8.0
*/
export declare const apSW: <A, N extends string, E2, B>(
name: Exclude<N, keyof A>,
fb: TaskEither<E2, B>
) => <E1>(fa: TaskEither<E1, A>) => TaskEither<
E1 | E2,
{
readonly [K in keyof A | N]: K extends keyof A ? A[K] : B
}
>
/**
* @since 2.11.0
*/
export declare const ApT: TaskEither<never, readonly []>
/**
* Equivalent to `ReadonlyNonEmptyArray#traverseWithIndex(ApplicativePar)`.
*
* @category traversing
* @since 2.11.0
*/
export declare const traverseReadonlyNonEmptyArrayWithIndex: <A, E, B>(
f: (index: number, a: A) => TaskEither<E, B>
) => (as: ReadonlyNonEmptyArray<A>) => TaskEither<E, ReadonlyNonEmptyArray<B>>
/**
* Equivalent to `ReadonlyArray#traverseWithIndex(ApplicativePar)`.
*
* @category traversing
* @since 2.11.0
*/
export declare const traverseReadonlyArrayWithIndex: <A, E, B>(
f: (index: number, a: A) => TaskEither<E, B>
) => (as: readonly A[]) => TaskEither<E, readonly B[]>
/**
* Equivalent to `ReadonlyArray#traverseWithIndex(ApplicativeSeq)`.
*
* @category traversing
* @since 2.11.0
*/
export declare const traverseReadonlyNonEmptyArrayWithIndexSeq: <A, E, B>(
f: (index: number, a: A) => TaskEither<E, B>
) => (as: ReadonlyNonEmptyArray<A>) => TaskEither<E, ReadonlyNonEmptyArray<B>>
/**
* Equivalent to `ReadonlyArray#traverseWithIndex(ApplicativeSeq)`.
*
* @category traversing
* @since 2.11.0
*/
export declare const traverseReadonlyArrayWithIndexSeq: <A, E, B>(
f: (index: number, a: A) => TaskEither<E, B>
) => (as: readonly A[]) => TaskEither<E, readonly B[]>
/**
* Equivalent to `ReadonlyArray#traverseWithIndex(Applicative)`.
*
* @category traversing
* @since 2.9.0
*/
export declare const traverseArrayWithIndex: <A, B, E>(
f: (index: number, a: A) => TaskEither<E, B>
) => (as: ReadonlyArray<A>) => TaskEither<E, ReadonlyArray<B>>
/**
* Equivalent to `ReadonlyArray#traverse(Applicative)`.
*
* @category traversing
* @since 2.9.0
*/
export declare const traverseArray: <A, B, E>(
f: (a: A) => TaskEither<E, B>
) => (as: readonly A[]) => TaskEither<E, readonly B[]>
/**
* Equivalent to `ReadonlyArray#sequence(Applicative)`.
*
* @category traversing
* @since 2.9.0
*/
export declare const sequenceArray: <A, E>(arr: ReadonlyArray<TaskEither<E, A>>) => TaskEither<E, ReadonlyArray<A>>
/**
* Equivalent to `ReadonlyArray#traverseWithIndex(ApplicativeSeq)`.
*
* @category traversing
* @since 2.9.0
*/
export declare const traverseSeqArrayWithIndex: <A, B, E>(
f: (index: number, a: A) => TaskEither<E, B>
) => (as: ReadonlyArray<A>) => TaskEither<E, ReadonlyArray<B>>
/**
* Equivalent to `ReadonlyArray#traverse(ApplicativeSeq)`.
*
* @category traversing
* @since 2.9.0
*/
export declare const traverseSeqArray: <A, B, E>(
f: (a: A) => TaskEither<E, B>
) => (as: readonly A[]) => TaskEither<E, readonly B[]>
/**
* Equivalent to `ReadonlyArray#sequence(ApplicativeSeq)`.
*
* @category traversing
* @since 2.9.0
*/
export declare const sequenceSeqArray: <A, E>(arr: ReadonlyArray<TaskEither<E, A>>) => TaskEither<E, ReadonlyArray<A>>
/**
* This instance is deprecated, use small, specific instances instead.
* For example if a function needs a `Functor` instance, pass `TE.Functor` instead of `TE.taskEither`
* (where `TE` is from `import TE from 'fp-ts/TaskEither'`)
*
* @category zone of death
* @since 2.0.0
* @deprecated
*/
export declare const taskEither: Monad2<URI> & Bifunctor2<URI> & Alt2<URI> & MonadTask2<URI> & MonadThrow2<URI>
/**
* This instance is deprecated, use small, specific instances instead.
* For example if a function needs a `Functor` instance, pass `TE.Functor` instead of `TE.taskEitherSeq`
* (where `TE` is from `import TE from 'fp-ts/TaskEither'`)
*
* @category zone of death
* @since 2.0.0
* @deprecated
*/
export declare const taskEitherSeq: typeof taskEither
/**
* Use [`getApplySemigroup`](./Apply.ts.html#getapplysemigroup) instead.
*
* @category zone of death
* @since 2.0.0
* @deprecated
*/
export declare const getApplySemigroup: <E, A>(S: Semigroup<A>) => Semigroup<TaskEither<E, A>>
/**
* Use [`getApplicativeMonoid`](./Applicative.ts.html#getapplicativemonoid) instead.
*
* @category zone of death
* @since 2.0.0
* @deprecated
*/
export declare const getApplyMonoid: <E, A>(M: Monoid<A>) => Monoid<TaskEither<E, A>>
/**
* Use [`getApplySemigroup`](./Apply.ts.html#getapplysemigroup) instead.
*
* @category zone of death
* @since 2.0.0
* @deprecated
*/
export declare const getSemigroup: <E, A>(S: Semigroup<A>) => Semigroup<TaskEither<E, A>>
/**
* Use [`getApplicativeTaskValidation`](#getapplicativetaskvalidation) and [`getAltTaskValidation`](#getalttaskvalidation) instead.
*
* @category zone of death
* @since 2.0.0
* @deprecated
*/
export declare function getTaskValidation<E>(
SE: Semigroup<E>
): Monad2C<URI, E> & Bifunctor2<URI> & Alt2C<URI, E> & MonadTask2C<URI, E> & MonadThrow2C<URI, E>