90 lines
2.5 KiB
JavaScript
90 lines
2.5 KiB
JavaScript
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/**
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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 * as O from 'fp-ts/es6/Option';
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import { pipe } from 'fp-ts/es6/pipeable';
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import * as _ from './internal';
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import * as RM from 'fp-ts/es6/ReadonlyMap';
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// -------------------------------------------------------------------------------------
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// constructors
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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 var index = _.index;
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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 var fromAt = function (at) {
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return index(function (i) { return _.lensComposePrism(_.prismSome())(at.at(i)); });
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};
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/**
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* Lift an instance of `Index` 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 var fromIso = function (iso) { return function (sia) {
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return index(function (i) { return pipe(iso, _.isoAsOptional, _.optionalComposeOptional(sia.index(i))); });
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}; };
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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 var indexReadonlyArray = _.indexReadonlyArray;
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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 var indexReadonlyNonEmptyArray = _.indexReadonlyNonEmptyArray;
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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 var indexReadonlyRecord = _.indexReadonlyRecord;
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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 var indexReadonlyMap = function (E) {
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var lookupE = RM.lookup(E);
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var insertAtE = RM.insertAt(E);
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return function () {
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return index(function (key) {
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return _.optional(function (s) { return lookupE(key, s); }, function (next) {
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var insert = insertAtE(key, next);
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return function (s) {
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return pipe(lookupE(key, s), O.fold(function () { return s; }, function (prev) { return (next === prev ? s : insert(s)); }));
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};
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});
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});
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};
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};
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// -------------------------------------------------------------------------------------
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// deprecated
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// -------------------------------------------------------------------------------------
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/**
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* Use `indexReadonlyArray` 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 var indexArray = _.indexReadonlyArray;
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/**
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* Use `indexReadonlyRecord` 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 var indexRecord = _.indexReadonlyRecord;
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