1032 lines
30 KiB
TypeScript
1032 lines
30 KiB
TypeScript
/**
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* `IOEither<E, A>` represents a synchronous computation that either yields a value of type `A` or fails yielding an
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* error of type `E`.
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*
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* If you want to represent a synchronous computation that never fails, please see `IO`.
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* If you want to represent a synchronous computation that may yield nothing, please see `IOOption`.
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*
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* @since 2.0.0
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*/
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import { Alt2, Alt2C } from './Alt'
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import { Applicative2, Applicative2C } from './Applicative'
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import { Apply2 } from './Apply'
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import { Bifunctor2 } from './Bifunctor'
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import * as chainable from './Chain'
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import { Compactable2C } from './Compactable'
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import * as E from './Either'
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import { Filterable2C } from './Filterable'
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import { FromEither2 } from './FromEither'
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import { FromIO2 } from './FromIO'
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import { LazyArg } from './function'
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import { Functor2 } from './Functor'
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import * as I from './IO'
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import { Monad2, Monad2C } from './Monad'
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import { MonadIO2, MonadIO2C } from './MonadIO'
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import { MonadThrow2, MonadThrow2C } from './MonadThrow'
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import { Monoid } from './Monoid'
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import { Option } from './Option'
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import { Pointed2 } from './Pointed'
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import { Predicate } from './Predicate'
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import { ReadonlyNonEmptyArray } from './ReadonlyNonEmptyArray'
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import { Refinement } from './Refinement'
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import { Semigroup } from './Semigroup'
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import Either = E.Either
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import IO = I.IO
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/**
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* @category model
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* @since 2.0.0
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*/
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export interface IOEither<E, A> extends IO<Either<E, A>> {}
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/**
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* @category constructors
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* @since 2.0.0
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*/
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export declare const left: <E = never, A = never>(l: E) => IOEither<E, A>
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/**
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* @category constructors
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* @since 2.0.0
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*/
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export declare const right: <E = never, A = never>(a: A) => IOEither<E, A>
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/**
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* @category constructors
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* @since 2.0.0
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*/
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export declare const rightIO: <E = never, A = never>(ma: IO<A>) => IOEither<E, A>
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/**
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* @category constructors
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* @since 2.0.0
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*/
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export declare const leftIO: <E = never, A = never>(me: IO<E>) => IOEither<E, A>
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/**
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* @category conversions
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* @since 2.0.0
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*/
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export declare const fromEither: <E, A>(fa: Either<E, A>) => IOEither<E, A>
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/**
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* @category conversions
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* @since 2.7.0
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*/
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export declare const fromIO: <A, E = never>(fa: IO<A>) => IOEither<E, A>
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/**
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* @category pattern matching
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* @since 2.10.0
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*/
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export declare const match: <E, B, A>(onLeft: (e: E) => B, onRight: (a: A) => B) => (ma: IOEither<E, A>) => IO<B>
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/**
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* Less strict version of [`match`](#match).
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*
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* The `W` suffix (short for **W**idening) means that the handler return types will be merged.
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*
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* @category pattern matching
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* @since 2.10.0
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*/
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export declare const matchW: <E, B, A, C>(
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onLeft: (e: E) => B,
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onRight: (a: A) => C
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) => (ma: IOEither<E, A>) => IO<B | C>
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/**
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* The `E` suffix (short for **E**ffect) means that the handlers return an effect (`IO`).
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*
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* @category pattern matching
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* @since 2.10.0
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*/
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export declare const matchE: <E, A, B>(
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onLeft: (e: E) => IO<B>,
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onRight: (a: A) => IO<B>
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) => (ma: IOEither<E, A>) => IO<B>
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/**
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* Alias of [`matchE`](#matche).
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*
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* @category pattern matching
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* @since 2.0.0
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*/
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export declare const fold: <E, A, B>(
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onLeft: (e: E) => I.IO<B>,
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onRight: (a: A) => I.IO<B>
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) => (ma: IOEither<E, A>) => I.IO<B>
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/**
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* Less strict version of [`matchE`](#matche).
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*
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* The `W` suffix (short for **W**idening) means that the handler return types will be merged.
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*
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* @category pattern matching
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* @since 2.10.0
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*/
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export declare const matchEW: <E, B, A, C>(
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onLeft: (e: E) => IO<B>,
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onRight: (a: A) => IO<C>
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) => (ma: IOEither<E, A>) => IO<B | C>
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/**
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* Alias of [`matchEW`](#matchew).
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*
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* @category pattern matching
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* @since 2.10.0
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*/
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export declare const foldW: <E, B, A, C>(
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onLeft: (e: E) => I.IO<B>,
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onRight: (a: A) => I.IO<C>
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) => (ma: IOEither<E, A>) => I.IO<B | C>
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/**
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* @category error handling
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* @since 2.0.0
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*/
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export declare const getOrElse: <E, A>(onLeft: (e: E) => IO<A>) => (ma: IOEither<E, A>) => IO<A>
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/**
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* Less strict version of [`getOrElse`](#getorelse).
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*
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* The `W` suffix (short for **W**idening) means that the handler return type will be merged.
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*
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* @category error handling
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* @since 2.6.0
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*/
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export declare const getOrElseW: <E, B>(onLeft: (e: E) => IO<B>) => <A>(ma: IOEither<E, A>) => IO<A | B>
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/**
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* Constructs a new `IOEither` from a function that performs a side effect and might throw
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*
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* See also [`tryCatchK`](#trycatchk).
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*
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* @category interop
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* @since 2.0.0
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*/
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export declare const tryCatch: <E, A>(f: LazyArg<A>, onThrow: (reason: unknown) => E) => IOEither<E, A>
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/**
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* Converts a function that may throw to one returning a `IOEither`.
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*
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* @category interop
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* @since 2.10.0
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*/
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export declare const tryCatchK: <A extends readonly unknown[], B, E>(
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f: (...a: A) => B,
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onThrow: (reason: unknown) => E
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) => (...a: A) => IOEither<E, B>
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/**
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* @category conversions
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* @since 2.10.0
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*/
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export declare const toUnion: <E, A>(fa: IOEither<E, A>) => IO<E | A>
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/**
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* @category error handling
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* @since 2.0.0
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*/
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export declare const orElse: <E1, A, E2>(onLeft: (e: E1) => IOEither<E2, A>) => (ma: IOEither<E1, A>) => IOEither<E2, A>
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/**
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* Less strict version of [`orElse`](#orelse).
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*
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* The `W` suffix (short for **W**idening) means that the return types will be merged.
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*
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* @category error handling
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* @since 2.10.0
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*/
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export declare const orElseW: <E1, E2, B>(
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onLeft: (e: E1) => IOEither<E2, B>
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) => <A>(ma: IOEither<E1, A>) => IOEither<E2, A | B>
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/**
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* Returns an effect that effectfully "peeks" at the failure of this effect.
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*
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* @category error handling
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* @since 2.15.0
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*/
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export declare const tapError: {
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<E1, E2, _>(onLeft: (e: E1) => IOEither<E2, _>): <A>(self: IOEither<E1, A>) => IOEither<E1 | E2, A>
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<E1, A, E2, _>(self: IOEither<E1, A>, onLeft: (e: E1) => IOEither<E2, _>): IOEither<E1 | E2, A>
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}
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/**
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* @category error handling
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* @since 2.12.0
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*/
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export declare const orElseFirstIOK: <E, B>(onLeft: (e: E) => IO<B>) => <A>(ma: IOEither<E, A>) => IOEither<E, A>
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/**
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* @category error handling
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* @since 2.11.0
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*/
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export declare const orLeft: <E1, E2>(onLeft: (e: E1) => IO<E2>) => <A>(fa: IOEither<E1, A>) => IOEither<E2, A>
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/**
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* @since 2.0.0
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*/
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export declare const swap: <E, A>(ma: IOEither<E, A>) => IOEither<A, E>
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/**
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* `map` can be used to turn functions `(a: A) => B` into functions `(fa: F<A>) => F<B>` whose argument and return types
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* use the type constructor `F` to represent some computational context.
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*
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* @category mapping
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* @since 2.0.0
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*/
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export declare const map: <A, B>(f: (a: A) => B) => <E>(fa: IOEither<E, A>) => IOEither<E, B>
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/**
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* Returns a `IOEither` whose failure and success channels have been mapped by the specified pair of functions, `f` and `g`.
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*
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* @example
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* import * as IOEither from 'fp-ts/IOEither'
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* import * as Either from 'fp-ts/Either'
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*
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* const f = (s: string) => new Error(s)
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* const g = (n: number) => n * 2
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*
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* assert.deepStrictEqual(IOEither.mapBoth(IOEither.right(1), f, g)(), Either.right(2))
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* assert.deepStrictEqual(IOEither.mapBoth(IOEither.left('err'), f, g)(), Either.left(new Error('err')))
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*
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* @category error handling
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* @since 2.16.0
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*/
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export declare const mapBoth: {
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<E, G, A, B>(f: (e: E) => G, g: (a: A) => B): (self: IOEither<E, A>) => IOEither<G, B>
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<E, A, G, B>(self: IOEither<E, A>, f: (e: E) => G, g: (a: A) => B): IOEither<G, B>
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}
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/**
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* Alias of `mapBoth`.
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*
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* @category legacy
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* @since 2.0.0
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*/
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export declare const bimap: <E, G, A, B>(f: (e: E) => G, g: (a: A) => B) => (fa: IOEither<E, A>) => IOEither<G, B>
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/**
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* Returns a `IOEither` with its error channel mapped using the specified function.
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*
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* @example
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* import * as IOEither from 'fp-ts/IOEither'
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* import * as Either from 'fp-ts/Either'
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*
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* const f = (s: string) => new Error(s)
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*
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* assert.deepStrictEqual(IOEither.mapError(IOEither.right(1), f)(), Either.right(1))
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* assert.deepStrictEqual(IOEither.mapError(IOEither.left('err'), f)(), Either.left(new Error('err')))
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*
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* @category error handling
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* @since 2.16.0
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*/
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export declare const mapError: {
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<E, G>(f: (e: E) => G): <A>(self: IOEither<E, A>) => IOEither<G, A>
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<E, A, G>(self: IOEither<E, A>, f: (e: E) => G): IOEither<G, A>
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}
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/**
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* Alias of `mapError`.
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*
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* @category legacy
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* @since 2.0.0
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*/
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export declare const mapLeft: <E, G>(f: (e: E) => G) => <A>(fa: IOEither<E, A>) => IOEither<G, A>
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/**
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* @since 2.0.0
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*/
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export declare const ap: <E, A>(fa: IOEither<E, A>) => <B>(fab: IOEither<E, (a: A) => B>) => IOEither<E, B>
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/**
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* Less strict version of [`ap`](#ap).
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*
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* The `W` suffix (short for **W**idening) means that the error types will be merged.
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*
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* @since 2.8.0
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*/
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export declare const apW: <E2, A>(
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fa: IOEither<E2, A>
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) => <E1, B>(fab: IOEither<E1, (a: A) => B>) => IOEither<E1 | E2, B>
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/**
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* @category constructors
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* @since 2.8.5
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*/
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export declare const of: <E = never, A = never>(a: A) => IOEither<E, A>
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/**
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* @category sequencing
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* @since 2.14.0
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*/
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export declare const flatMap: {
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<A, E2, B>(f: (a: A) => IOEither<E2, B>): <E1>(ma: IOEither<E1, A>) => IOEither<E1 | E2, B>
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<E1, A, E2, B>(ma: IOEither<E1, A>, f: (a: A) => IOEither<E2, B>): IOEither<E1 | E2, B>
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}
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/**
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* Less strict version of [`flatten`](#flatten).
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*
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* The `W` suffix (short for **W**idening) means that the error types will be merged.
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*
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* @category sequencing
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* @since 2.11.0
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*/
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export declare const flattenW: <E1, E2, A>(mma: IOEither<E1, IOEither<E2, A>>) => IOEither<E1 | E2, A>
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/**
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* @category sequencing
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* @since 2.0.0
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*/
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export declare const flatten: <E, A>(mma: IOEither<E, IOEither<E, A>>) => IOEither<E, A>
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/**
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* Identifies an associative operation on a type constructor. It is similar to `Semigroup`, except that it applies to
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* types of kind `* -> *`.
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*
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* @category error handling
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* @since 2.0.0
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*/
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export declare const alt: <E, A>(that: LazyArg<IOEither<E, A>>) => (fa: IOEither<E, A>) => IOEither<E, A>
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/**
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* Less strict version of [`alt`](#alt).
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*
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* The `W` suffix (short for **W**idening) means that the error and the return types will be merged.
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*
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* @category error handling
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* @since 2.9.0
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*/
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export declare const altW: <E2, B>(
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that: LazyArg<IOEither<E2, B>>
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) => <E1, A>(fa: IOEither<E1, A>) => IOEither<E2, A | B>
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/**
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* @since 2.7.0
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*/
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export declare const throwError: MonadThrow2<URI>['throwError']
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/**
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* @category type lambdas
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* @since 2.0.0
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*/
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export declare const URI = 'IOEither'
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/**
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* @category type lambdas
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* @since 2.0.0
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*/
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export type URI = typeof URI
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declare module './HKT' {
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interface URItoKind2<E, A> {
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readonly [URI]: IOEither<E, A>
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}
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}
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/**
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* The default [`ApplicativePar`](#applicativepar) instance returns the first error, if you want to
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* get all errors you need to provide a way to concatenate them via a `Semigroup`.
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*
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* See [`getApplicativeValidation`](./Either.ts.html#getapplicativevalidation).
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*
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* @category error handling
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* @since 2.7.0
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*/
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export declare function getApplicativeIOValidation<E>(S: Semigroup<E>): Applicative2C<URI, E>
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/**
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* The default [`Alt`](#alt) instance returns the last error, if you want to
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* get all errors you need to provide a way to concatenate them via a `Semigroup`.
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*
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* See [`getAltValidation`](./Either.ts.html#getaltvalidation).
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*
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* @category error handling
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* @since 2.7.0
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*/
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export declare function getAltIOValidation<E>(S: Semigroup<E>): Alt2C<URI, E>
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/**
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* @category filtering
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* @since 2.10.0
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*/
|
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export declare const getCompactable: <E>(M: Monoid<E>) => Compactable2C<'IOEither', E>
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/**
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* @category filtering
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* @since 2.1.0
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*/
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export declare function getFilterable<E>(M: Monoid<E>): Filterable2C<URI, E>
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/**
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* @category instances
|
|
* @since 2.7.0
|
|
*/
|
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export declare const Functor: Functor2<URI>
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/**
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* Maps the `Right` value of this `IOEither` to the specified constant value.
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*
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* @category mapping
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* @since 2.16.0
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*/
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export declare const as: {
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<A>(a: A): <E, _>(self: IOEither<E, _>) => IOEither<E, A>
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<E, _, A>(self: IOEither<E, _>, a: A): IOEither<E, A>
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}
|
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/**
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* Maps the `Right` value of this `IOEither` to the void constant value.
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|
*
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|
* @category mapping
|
|
* @since 2.16.0
|
|
*/
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export declare const asUnit: <E, _>(self: IOEither<E, _>) => IOEither<E, void>
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/**
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|
* @category mapping
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|
* @since 2.10.0
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*/
|
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export declare const flap: <A>(a: A) => <E, B>(fab: IOEither<E, (a: A) => B>) => IOEither<E, B>
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|
/**
|
|
* @category instances
|
|
* @since 2.10.0
|
|
*/
|
|
export declare const Pointed: Pointed2<URI>
|
|
/**
|
|
* @category instances
|
|
* @since 2.7.0
|
|
*/
|
|
export declare const Bifunctor: Bifunctor2<URI>
|
|
/**
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|
* Runs computations in parallel.
|
|
*
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* @category instances
|
|
* @since 2.10.0
|
|
*/
|
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export declare const ApplyPar: Apply2<URI>
|
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/**
|
|
* Combine two effectful actions, keeping only the result of the first.
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*
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* @since 2.0.0
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*/
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export declare const apFirst: <E, B>(second: IOEither<E, B>) => <A>(first: IOEither<E, A>) => IOEither<E, A>
|
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/**
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|
* 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>(
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second: IOEither<E2, B>
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) => <E1, A>(first: IOEither<E1, A>) => IOEither<E1 | E2, A>
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|
/**
|
|
* Combine two effectful actions, keeping only the result of the second.
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*
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* @since 2.0.0
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*/
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export declare const apSecond: <E, B>(second: IOEither<E, B>) => <A>(first: IOEither<E, A>) => IOEither<E, B>
|
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/**
|
|
* 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: IOEither<E2, B>
|
|
) => <E1, A>(first: IOEither<E1, A>) => IOEither<E1 | E2, B>
|
|
/**
|
|
* Runs computations in parallel.
|
|
*
|
|
* @category instances
|
|
* @since 2.8.4
|
|
*/
|
|
export declare const ApplicativePar: Applicative2<URI>
|
|
/**
|
|
* Runs computations sequentially.
|
|
*
|
|
* @category instances
|
|
* @since 2.8.4
|
|
*/
|
|
export declare const ApplicativeSeq: Applicative2<URI>
|
|
/**
|
|
* @category instances
|
|
* @since 2.10.0
|
|
*/
|
|
export declare const Chain: chainable.Chain2<URI>
|
|
/**
|
|
* @category instances
|
|
* @since 2.7.0
|
|
*/
|
|
export declare const Monad: Monad2<URI>
|
|
/**
|
|
* @category instances
|
|
* @since 2.10.0
|
|
*/
|
|
export declare const FromEither: FromEither2<URI>
|
|
/**
|
|
* @category instances
|
|
* @since 2.10.0
|
|
*/
|
|
export declare const FromIO: FromIO2<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 combinators
|
|
* @since 2.15.0
|
|
*/
|
|
export declare const tap: {
|
|
<E1, A, E2, _>(self: IOEither<E1, A>, f: (a: A) => IOEither<E2, _>): IOEither<E1 | E2, A>
|
|
<A, E2, _>(f: (a: A) => IOEither<E2, _>): <E1>(self: IOEither<E1, A>) => IOEither<E2 | E1, A>
|
|
}
|
|
/**
|
|
* Composes computations in sequence, using the return value of one computation to determine the next computation and
|
|
* keeping only the result of the first.
|
|
*
|
|
* @example
|
|
* import { pipe } from 'fp-ts/function'
|
|
* import * as IOE from 'fp-ts/IOEither'
|
|
* import * as E from 'fp-ts/Either'
|
|
*
|
|
* const compute = (value: string) => pipe(
|
|
* IOE.of(value),
|
|
* IOE.tapEither(() => value.length > 0 ? E.right('ok') : E.left('error')),
|
|
* )
|
|
*
|
|
* assert.deepStrictEqual(compute('')(), E.left('error'))
|
|
* assert.deepStrictEqual(compute('fp-ts')(), E.right('fp-ts'))
|
|
*
|
|
* @category combinators
|
|
* @since 2.16.0
|
|
*/
|
|
export declare const tapEither: {
|
|
<A, E2, _>(f: (a: A) => Either<E2, _>): <E1>(self: IOEither<E1, A>) => IOEither<E2 | E1, A>
|
|
<E1, A, E2, _>(self: IOEither<E1, A>, f: (a: A) => Either<E2, _>): IOEither<E1 | E2, A>
|
|
}
|
|
/**
|
|
* Composes computations in sequence, using the return value of one computation to determine the next computation and
|
|
* keeping only the result of the first.
|
|
*
|
|
* @example
|
|
* import { pipe } from 'fp-ts/function'
|
|
* import * as IOE from 'fp-ts/IOEither'
|
|
* import * as E from 'fp-ts/Either'
|
|
* import * as Console from 'fp-ts/Console'
|
|
*
|
|
* const sayHello = (value: string) => Console.log(`Hello, ${value}`)
|
|
*
|
|
* // Will produce `Hello, fp-ts` to the stdout
|
|
* const effectA = IOE.tapIO(IOE.of('fp-ts'), sayHello)
|
|
*
|
|
* // No output to the stdout
|
|
* const effectB = pipe(IOE.left<string>('error'), IOE.tapIO(sayHello))
|
|
*
|
|
* assert.deepStrictEqual(effectA(), E.right('fp-ts'))
|
|
* assert.deepStrictEqual(effectB(), E.left('error'))
|
|
*
|
|
* @category combinators
|
|
* @since 2.16.0
|
|
*/
|
|
export declare const tapIO: {
|
|
<A, _>(f: (a: A) => IO<_>): <E>(self: IOEither<E, A>) => IOEither<E, A>
|
|
<E, A, _>(self: IOEither<E, A>, f: (a: A) => IO<_>): IOEither<E, A>
|
|
}
|
|
/**
|
|
* @category instances
|
|
* @since 2.7.0
|
|
*/
|
|
export declare const Alt: Alt2<URI>
|
|
/**
|
|
* @category instances
|
|
* @since 2.7.0
|
|
*/
|
|
export declare const MonadIO: MonadIO2<URI>
|
|
/**
|
|
* @category instances
|
|
* @since 2.7.0
|
|
*/
|
|
export declare const MonadThrow: MonadThrow2<URI>
|
|
/**
|
|
* @category lifting
|
|
* @since 2.10.0
|
|
*/
|
|
export declare const fromIOK: <A extends ReadonlyArray<unknown>, B>(
|
|
f: (...a: A) => I.IO<B>
|
|
) => <E = never>(...a: A) => IOEither<E, B>
|
|
/**
|
|
* Alias of `tapIO`.
|
|
*
|
|
* @category legacy
|
|
* @since 2.10.0
|
|
*/
|
|
export declare const chainFirstIOK: <A, B>(f: (a: A) => I.IO<B>) => <E>(first: IOEither<E, A>) => IOEither<E, A>
|
|
/**
|
|
* @category conversions
|
|
* @since 2.0.0
|
|
*/
|
|
export declare const fromOption: <E>(onNone: LazyArg<E>) => <A>(fa: Option<A>) => IOEither<E, A>
|
|
/**
|
|
* Use `liftOption`.
|
|
*
|
|
* @category legacy
|
|
* @since 2.10.0
|
|
*/
|
|
export declare const fromOptionK: <E>(
|
|
onNone: LazyArg<E>
|
|
) => <A extends ReadonlyArray<unknown>, B>(f: (...a: A) => Option<B>) => (...a: A) => IOEither<E, B>
|
|
/**
|
|
* Use `flatMapOption`.
|
|
*
|
|
* @category legacy
|
|
* @since 2.10.0
|
|
*/
|
|
export declare const chainOptionK: <E>(
|
|
onNone: LazyArg<E>
|
|
) => <A, B>(f: (a: A) => Option<B>) => (ma: IOEither<E, A>) => IOEither<E, B>
|
|
/**
|
|
* Use `flatMapOption`.
|
|
*
|
|
* @category legacy
|
|
* @since 2.13.2
|
|
*/
|
|
export declare const chainOptionKW: <E2>(
|
|
onNone: LazyArg<E2>
|
|
) => <A, B>(f: (a: A) => Option<B>) => <E1>(ma: IOEither<E1, A>) => IOEither<E1 | E2, B>
|
|
/**
|
|
* @category lifting
|
|
* @since 2.15.0
|
|
*/
|
|
export declare const liftNullable: <A extends ReadonlyArray<unknown>, B, E>(
|
|
f: (...a: A) => B | null | undefined,
|
|
onNullable: (...a: A) => E
|
|
) => (...a: A) => IOEither<E, NonNullable<B>>
|
|
/**
|
|
* @category lifting
|
|
* @since 2.15.0
|
|
*/
|
|
export declare const liftOption: <A extends ReadonlyArray<unknown>, B, E>(
|
|
f: (...a: A) => Option<B>,
|
|
onNone: (...a: A) => E
|
|
) => (...a: A) => IOEither<E, B>
|
|
/**
|
|
* @category sequencing
|
|
* @since 2.15.0
|
|
*/
|
|
export declare const flatMapNullable: {
|
|
<A, B, E2>(f: (a: A) => B | null | undefined, onNullable: (a: A) => E2): <E1>(
|
|
self: IOEither<E1, A>
|
|
) => IOEither<E2 | E1, NonNullable<B>>
|
|
<E1, A, B, E2>(self: IOEither<E1, A>, f: (a: A) => B | null | undefined, onNullable: (a: A) => E2): IOEither<
|
|
E1 | E2,
|
|
NonNullable<B>
|
|
>
|
|
}
|
|
/**
|
|
* @category sequencing
|
|
* @since 2.15.0
|
|
*/
|
|
export declare const flatMapOption: {
|
|
<A, B, E2>(f: (a: A) => Option<B>, onNone: (a: A) => E2): <E1>(self: IOEither<E1, A>) => IOEither<E2 | E1, B>
|
|
<E1, A, B, E2>(self: IOEither<E1, A>, f: (a: A) => Option<B>, onNone: (a: A) => E2): IOEither<E1 | E2, B>
|
|
}
|
|
/**
|
|
* @category sequencing
|
|
* @since 2.15.0
|
|
*/
|
|
export declare const flatMapEither: {
|
|
<A, E2, B>(f: (a: A) => E.Either<E2, B>): <E1>(self: IOEither<E1, A>) => IOEither<E1 | E2, B>
|
|
<E1, A, E2, B>(self: IOEither<E1, A>, f: (a: A) => E.Either<E2, B>): IOEither<E1 | E2, B>
|
|
}
|
|
/**
|
|
* @category sequencing
|
|
* @since 2.16.0
|
|
*/
|
|
export declare const flatMapIO: {
|
|
<A, B>(f: (a: A) => IO<B>): <E>(self: IOEither<E, A>) => IOEither<E, B>
|
|
<E, A, B>(self: IOEither<E, A>, f: (a: A) => IO<B>): IOEither<E, B>
|
|
}
|
|
/**
|
|
* Alias of `flatMapIO`.
|
|
* @category legacy
|
|
* @since 2.10.0
|
|
*/
|
|
export declare const chainIOK: <A, B>(f: (a: A) => I.IO<B>) => <E>(first: IOEither<E, A>) => IOEither<E, B>
|
|
/**
|
|
* Alias of `flatMapEither`.
|
|
*
|
|
* @category legacy
|
|
* @since 2.4.0
|
|
*/
|
|
export declare const chainEitherK: <E, A, B>(f: (a: A) => E.Either<E, B>) => (ma: IOEither<E, A>) => IOEither<E, B>
|
|
/**
|
|
* Alias of `flatMapEither`.
|
|
*
|
|
* @category legacy
|
|
* @since 2.6.1
|
|
*/
|
|
export declare const chainEitherKW: <E2, A, B>(
|
|
f: (a: A) => Either<E2, B>
|
|
) => <E1>(ma: IOEither<E1, A>) => IOEither<E1 | E2, B>
|
|
/**
|
|
* Alias of `tapEither`.
|
|
*
|
|
* @category legacy
|
|
* @since 2.12.0
|
|
*/
|
|
export declare const chainFirstEitherK: <A, E, B>(f: (a: A) => E.Either<E, B>) => (ma: IOEither<E, A>) => IOEither<E, A>
|
|
/**
|
|
* Alias of `tapEither`.
|
|
*
|
|
* The `W` suffix (short for **W**idening) means that the error types will be merged.
|
|
*
|
|
* @category legacy
|
|
* @since 2.12.0
|
|
*/
|
|
export declare const chainFirstEitherKW: <A, E2, B>(
|
|
f: (a: A) => E.Either<E2, B>
|
|
) => <E1>(ma: IOEither<E1, A>) => IOEither<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) => IOEither<E, B>
|
|
<E, A>(predicate: Predicate<A>, onFalse: (a: A) => E): <B extends A>(b: B) => IOEither<E, B>
|
|
<E, A>(predicate: Predicate<A>, onFalse: (a: A) => E): (a: A) => IOEither<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: IOEither<E, A>) => IOEither<E, B>
|
|
<E, A>(predicate: Predicate<A>, onFalse: (a: A) => E): <B extends A>(mb: IOEither<E, B>) => IOEither<E, B>
|
|
<E, A>(predicate: Predicate<A>, onFalse: (a: A) => E): (ma: IOEither<E, A>) => IOEither<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: IOEither<E1, A>
|
|
) => IOEither<E1 | E2, B>
|
|
<A, E2>(predicate: Predicate<A>, onFalse: (a: A) => E2): <E1, B extends A>(
|
|
mb: IOEither<E1, B>
|
|
) => IOEither<E1 | E2, B>
|
|
<A, E2>(predicate: Predicate<A>, onFalse: (a: A) => E2): <E1>(ma: IOEither<E1, A>) => IOEither<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) => IOEither<E, B>
|
|
/**
|
|
* 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: IOEither<E, A>,
|
|
use: (a: A) => IOEither<E, B>,
|
|
release: (a: A, e: E.Either<E, B>) => IOEither<E, void>
|
|
) => IOEither<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: IOEither<E1, A>,
|
|
use: (a: A) => IOEither<E2, B>,
|
|
release: (a: A, e: E.Either<E2, B>) => IOEither<E3, void>
|
|
) => IOEither<E1 | E2 | E3, B>
|
|
/**
|
|
* @category do notation
|
|
* @since 2.9.0
|
|
*/
|
|
export declare const Do: IOEither<never, {}>
|
|
/**
|
|
* @category do notation
|
|
* @since 2.8.0
|
|
*/
|
|
export declare const bindTo: <N extends string>(
|
|
name: N
|
|
) => <E, A>(fa: IOEither<E, A>) => IOEither<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: IOEither<E, A>) => IOEither<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) => IOEither<E, B>
|
|
) => (ma: IOEither<E, A>) => IOEither<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) => IOEither<E2, B>
|
|
) => <E1>(fa: IOEither<E1, A>) => IOEither<
|
|
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: IOEither<E, B>
|
|
) => (fa: IOEither<E, A>) => IOEither<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: IOEither<E2, B>
|
|
) => <E1>(fa: IOEither<E1, A>) => IOEither<
|
|
E1 | E2,
|
|
{
|
|
readonly [K in keyof A | N]: K extends keyof A ? A[K] : B
|
|
}
|
|
>
|
|
/**
|
|
* @since 2.11.0
|
|
*/
|
|
export declare const ApT: IOEither<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) => IOEither<E, B>
|
|
) => (as: ReadonlyNonEmptyArray<A>) => IOEither<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) => IOEither<E, B>
|
|
) => (as: readonly A[]) => IOEither<E, readonly B[]>
|
|
/**
|
|
* Equivalent to `ReadonlyNonEmptyArray#traverseWithIndex(ApplicativeSeq)`.
|
|
*
|
|
* @category traversing
|
|
* @since 2.11.0
|
|
*/
|
|
export declare const traverseReadonlyNonEmptyArrayWithIndexSeq: <A, E, B>(
|
|
f: (index: number, a: A) => IOEither<E, B>
|
|
) => (as: ReadonlyNonEmptyArray<A>) => IOEither<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) => IOEither<E, B>
|
|
) => (as: readonly A[]) => IOEither<E, readonly B[]>
|
|
/**
|
|
* Equivalent to `ReadonlyArray#traverseWithIndex(Applicative)`.
|
|
*
|
|
* @category traversing
|
|
* @since 2.9.0
|
|
*/
|
|
export declare const traverseArrayWithIndex: <A, E, B>(
|
|
f: (index: number, a: A) => IOEither<E, B>
|
|
) => (as: ReadonlyArray<A>) => IOEither<E, ReadonlyArray<B>>
|
|
/**
|
|
* Equivalent to `ReadonlyArray#traverse(Applicative)`.
|
|
*
|
|
* @category traversing
|
|
* @since 2.9.0
|
|
*/
|
|
export declare const traverseArray: <A, E, B>(
|
|
f: (a: A) => IOEither<E, B>
|
|
) => (as: readonly A[]) => IOEither<E, readonly B[]>
|
|
/**
|
|
* Equivalent to `ReadonlyArray#sequence(Applicative)`.
|
|
*
|
|
* @category traversing
|
|
* @since 2.9.0
|
|
*/
|
|
export declare const sequenceArray: <E, A>(arr: ReadonlyArray<IOEither<E, A>>) => IOEither<E, ReadonlyArray<A>>
|
|
/**
|
|
* Equivalent to `ReadonlyArray#traverseWithIndex(ApplicativeSeq)`.
|
|
*
|
|
* @category traversing
|
|
* @since 2.9.0
|
|
*/
|
|
export declare const traverseSeqArrayWithIndex: <A, E, B>(
|
|
f: (index: number, a: A) => IOEither<E, B>
|
|
) => (as: ReadonlyArray<A>) => IOEither<E, ReadonlyArray<B>>
|
|
/**
|
|
* Equivalent to `ReadonlyArray#traverse(ApplicativeSeq)`.
|
|
*
|
|
* @category traversing
|
|
* @since 2.9.0
|
|
*/
|
|
export declare const traverseSeqArray: <A, E, B>(
|
|
f: (a: A) => IOEither<E, B>
|
|
) => (as: readonly A[]) => IOEither<E, readonly B[]>
|
|
/**
|
|
* Equivalent to `ReadonlyArray#sequence(ApplicativeSeq)`.
|
|
*
|
|
* @category traversing
|
|
* @since 2.9.0
|
|
*/
|
|
export declare const sequenceSeqArray: <E, A>(arr: ReadonlyArray<IOEither<E, A>>) => IOEither<E, ReadonlyArray<A>>
|
|
/**
|
|
* Use [`ApplicativePar`](#applicativepar) instead
|
|
*
|
|
* @category zone of death
|
|
* @since 2.7.0
|
|
* @deprecated
|
|
*/
|
|
export declare const Applicative: Applicative2<URI>
|
|
/**
|
|
* Alias of `flatMap`.
|
|
*
|
|
* @category legacy
|
|
* @since 2.0.0
|
|
*/
|
|
export declare const chain: <E, A, B>(f: (a: A) => IOEither<E, B>) => (ma: IOEither<E, A>) => IOEither<E, B>
|
|
/**
|
|
* Alias of `flatMap`.
|
|
*
|
|
* @category legacy
|
|
* @since 2.6.0
|
|
*/
|
|
export declare const chainW: <E2, A, B>(
|
|
f: (a: A) => IOEither<E2, B>
|
|
) => <E1>(ma: IOEither<E1, A>) => IOEither<E1 | E2, B>
|
|
/**
|
|
* Alias of `tap`.
|
|
*
|
|
* @category legacy
|
|
* @since 2.0.0
|
|
*/
|
|
export declare const chainFirst: <E, A, B>(f: (a: A) => IOEither<E, B>) => (ma: IOEither<E, A>) => IOEither<E, A>
|
|
/**
|
|
* Alias of `tap`.
|
|
*
|
|
* @category legacy
|
|
* @since 2.8.0
|
|
*/
|
|
export declare const chainFirstW: <E2, A, B>(
|
|
f: (a: A) => IOEither<E2, B>
|
|
) => <E1>(ma: IOEither<E1, A>) => IOEither<E1 | E2, A>
|
|
/**
|
|
* Alias of `tapError`.
|
|
*
|
|
* @category legacy
|
|
* @since 2.11.0
|
|
*/
|
|
export declare const orElseFirst: <E, B>(onLeft: (e: E) => IOEither<E, B>) => <A>(ma: IOEither<E, A>) => IOEither<E, A>
|
|
/**
|
|
* Alias of `tapError`.
|
|
*
|
|
* @category legacy
|
|
* @since 2.11.0
|
|
*/
|
|
export declare const orElseFirstW: <E1, E2, B>(
|
|
onLeft: (e: E1) => IOEither<E2, B>
|
|
) => <A>(ma: IOEither<E1, A>) => IOEither<E1 | E2, A>
|
|
/**
|
|
* This instance is deprecated, use small, specific instances instead.
|
|
* For example if a function needs a `Functor` instance, pass `IOE.Functor` instead of `IOE.ioEither`
|
|
* (where `IOE` is from `import IOE from 'fp-ts/IOEither'`)
|
|
*
|
|
* @category zone of death
|
|
* @since 2.0.0
|
|
* @deprecated
|
|
*/
|
|
export declare const ioEither: Monad2<URI> & Bifunctor2<URI> & Alt2<URI> & MonadIO2<URI> & MonadThrow2<URI>
|
|
/**
|
|
* 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<IOEither<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<IOEither<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<IOEither<E, A>>
|
|
/**
|
|
* Use [`getApplicativeIOValidation`](#getapplicativeiovalidation) and [`getAltIOValidation`](#getaltiovalidation).
|
|
*
|
|
* @category zone of death
|
|
* @since 2.0.0
|
|
* @deprecated
|
|
*/
|
|
export declare function getIOValidation<E>(
|
|
SE: Semigroup<E>
|
|
): Monad2C<URI, E> & Bifunctor2<URI> & Alt2C<URI, E> & MonadIO2C<URI, E> & MonadThrow2C<URI, E>
|