58 lines
1.5 KiB
TypeScript
58 lines
1.5 KiB
TypeScript
/**
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* **This module is experimental**
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*
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* Experimental features are published in order to get early feedback from the community.
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*
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* A feature tagged as _Experimental_ is in a high state of flux, you're at risk of it changing without notice.
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*
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* @since 2.3.0
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*/
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import { Eq } from 'fp-ts/es6/Eq'
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import * as O from 'fp-ts/es6/Option'
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import { ReadonlyRecord } from 'fp-ts/es6/ReadonlyRecord'
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import { Iso } from './Iso'
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import { Lens } from './Lens'
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import Option = O.Option
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/**
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* @category model
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* @since 2.3.0
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*/
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export interface At<S, I, A> {
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readonly at: (i: I) => Lens<S, A>
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}
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/**
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* @category constructors
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* @since 2.3.8
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*/
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export declare const at: <S, I, A>(at: At<S, I, A>['at']) => At<S, I, A>
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/**
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* Lift an instance of `At` using an `Iso`.
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*
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* @category constructors
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* @since 2.3.0
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*/
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export declare const fromIso: <T, S>(iso: Iso<T, S>) => <I, A>(sia: At<S, I, A>) => At<T, I, A>
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/**
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* @category constructors
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* @since 2.3.7
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*/
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export declare const atReadonlyRecord: <A = never>() => At<ReadonlyRecord<string, A>, string, Option<A>>
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/**
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* @category constructors
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* @since 2.3.7
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*/
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export declare const atReadonlyMap: <K>(E: Eq<K>) => <A = never>() => At<ReadonlyMap<K, A>, K, O.Option<A>>
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/**
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* @category constructors
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* @since 2.3.7
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*/
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export declare const atReadonlySet: <A>(E: Eq<A>) => At<ReadonlySet<A>, A, boolean>
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/**
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* Use `atReadonlyRecord` instead.
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*
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* @category constructors
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* @since 2.3.2
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* @deprecated
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*/
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export declare const atRecord: <A = never>() => At<ReadonlyRecord<string, A>, string, Option<A>>
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