346 lines
10 KiB
JavaScript
346 lines
10 KiB
JavaScript
"use strict";
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var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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var desc = Object.getOwnPropertyDescriptor(m, k);
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if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
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desc = { enumerable: true, get: function() { return m[k]; } };
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}
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Object.defineProperty(o, k2, desc);
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}) : (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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o[k2] = m[k];
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}));
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var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
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Object.defineProperty(o, "default", { enumerable: true, value: v });
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}) : function(o, v) {
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o["default"] = v;
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});
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var __importStar = (this && this.__importStar) || function (mod) {
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if (mod && mod.__esModule) return mod;
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var result = {};
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if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
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__setModuleDefault(result, mod);
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return result;
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.state = exports.execState = exports.evalState = exports.sequenceArray = exports.traverseArray = exports.traverseArrayWithIndex = exports.traverseReadonlyArrayWithIndex = exports.traverseReadonlyNonEmptyArrayWithIndex = exports.apS = exports.bind = exports.let = exports.bindTo = exports.execute = exports.evaluate = exports.FromState = exports.chainFirst = exports.Monad = exports.Chain = exports.Applicative = exports.apSecond = exports.apFirst = exports.Apply = exports.Pointed = exports.flap = exports.Functor = exports.URI = exports.flatten = exports.chain = exports.of = exports.ap = exports.map = exports.gets = exports.modify = exports.put = exports.get = void 0;
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var Apply_1 = require("./Apply");
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var Chain_1 = require("./Chain");
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var function_1 = require("./function");
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var Functor_1 = require("./Functor");
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var _ = __importStar(require("./internal"));
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// -------------------------------------------------------------------------------------
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// constructors
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// -------------------------------------------------------------------------------------
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/**
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* Get the current state
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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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var get = function () { return function (s) { return [s, s]; }; };
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exports.get = get;
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/**
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* Set the state
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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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var put = function (s) { return function () { return [undefined, s]; }; };
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exports.put = put;
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/**
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* Modify the state by applying a function to the current state
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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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var modify = function (f) { return function (s) { return [undefined, f(s)]; }; };
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exports.modify = modify;
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/**
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* Get a value which depends on the current state
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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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var gets = function (f) { return function (s) { return [f(s), s]; }; };
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exports.gets = gets;
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/* istanbul ignore next */
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var _map = function (fa, f) { return (0, function_1.pipe)(fa, (0, exports.map)(f)); };
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/* istanbul ignore next */
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var _ap = function (fab, fa) { return (0, function_1.pipe)(fab, (0, exports.ap)(fa)); };
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/* istanbul ignore next */
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var _chain = function (ma, f) { return (0, function_1.pipe)(ma, (0, exports.chain)(f)); };
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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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var map = function (f) { return function (fa) { return function (s1) {
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var _a = fa(s1), a = _a[0], s2 = _a[1];
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return [f(a), s2];
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}; }; };
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exports.map = map;
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/**
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* @since 2.0.0
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*/
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var ap = function (fa) { return function (fab) { return function (s1) {
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var _a = fab(s1), f = _a[0], s2 = _a[1];
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var _b = fa(s2), a = _b[0], s3 = _b[1];
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return [f(a), s3];
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}; }; };
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exports.ap = ap;
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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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var of = function (a) { return function (s) { return [a, s]; }; };
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exports.of = of;
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/**
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* Composes computations in sequence, using the return value of one computation to determine the next computation.
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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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var chain = function (f) { return function (ma) { return function (s1) {
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var _a = ma(s1), a = _a[0], s2 = _a[1];
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return f(a)(s2);
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}; }; };
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exports.chain = chain;
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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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exports.flatten = (0, exports.chain)(function_1.identity);
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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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exports.URI = 'State';
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/**
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* @category instances
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* @since 2.7.0
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*/
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exports.Functor = {
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URI: exports.URI,
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map: _map
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};
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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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exports.flap = (0, Functor_1.flap)(exports.Functor);
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/**
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* @category instances
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* @since 2.10.0
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*/
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exports.Pointed = {
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URI: exports.URI,
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of: exports.of
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};
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/**
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* @category instances
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* @since 2.10.0
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*/
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exports.Apply = {
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URI: exports.URI,
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map: _map,
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ap: _ap
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};
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/**
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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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exports.apFirst = (0, Apply_1.apFirst)(exports.Apply);
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/**
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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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exports.apSecond = (0, Apply_1.apSecond)(exports.Apply);
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/**
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* @category instances
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* @since 2.7.0
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*/
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exports.Applicative = {
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URI: exports.URI,
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map: _map,
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ap: _ap,
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of: exports.of
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};
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/**
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* @category instances
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* @since 2.10.0
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*/
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exports.Chain = {
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URI: exports.URI,
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map: _map,
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ap: _ap,
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chain: _chain
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};
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/**
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* @category instances
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* @since 2.7.0
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*/
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exports.Monad = {
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URI: exports.URI,
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map: _map,
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ap: _ap,
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of: exports.of,
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chain: _chain
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};
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/**
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* Composes computations in sequence, using the return value of one computation to determine the next computation and
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* keeping only the result of the first.
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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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exports.chainFirst =
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/*#__PURE__*/ (0, Chain_1.chainFirst)(exports.Chain);
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/**
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* @category instances
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* @since 2.11.0
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*/
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exports.FromState = {
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URI: exports.URI,
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fromState: function_1.identity
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};
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// -------------------------------------------------------------------------------------
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// utils
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// -------------------------------------------------------------------------------------
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/**
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* Run a computation in the `State` monad, discarding the final state
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*
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* @since 2.8.0
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*/
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var evaluate = function (s) {
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return function (ma) {
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return ma(s)[0];
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};
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};
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exports.evaluate = evaluate;
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/**
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* Run a computation in the `State` monad discarding the result
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*
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* @since 2.8.0
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*/
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var execute = function (s) {
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return function (ma) {
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return ma(s)[1];
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};
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};
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exports.execute = execute;
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// -------------------------------------------------------------------------------------
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// do notation
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// -------------------------------------------------------------------------------------
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/**
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* @since 2.8.0
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*/
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exports.bindTo = (0, Functor_1.bindTo)(exports.Functor);
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var let_ = /*#__PURE__*/ (0, Functor_1.let)(exports.Functor);
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exports.let = let_;
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/**
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* @since 2.8.0
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*/
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exports.bind = (0, Chain_1.bind)(exports.Chain);
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// -------------------------------------------------------------------------------------
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// pipeable sequence S
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// -------------------------------------------------------------------------------------
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/**
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* @since 2.8.0
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*/
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exports.apS = (0, Apply_1.apS)(exports.Apply);
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// -------------------------------------------------------------------------------------
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// array utils
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// -------------------------------------------------------------------------------------
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/**
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* Equivalent to `ReadonlyNonEmptyArray#traverseWithIndex(Applicative)`.
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*
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* @category traversing
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* @since 2.11.0
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*/
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var traverseReadonlyNonEmptyArrayWithIndex = function (f) {
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return function (as) {
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return function (s) {
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var _a = f(0, _.head(as))(s), b = _a[0], s2 = _a[1];
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var bs = [b];
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var out = s2;
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for (var i = 1; i < as.length; i++) {
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var _b = f(i, as[i])(out), b_1 = _b[0], s2_1 = _b[1];
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bs.push(b_1);
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out = s2_1;
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}
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return [bs, out];
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};
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};
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};
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exports.traverseReadonlyNonEmptyArrayWithIndex = traverseReadonlyNonEmptyArrayWithIndex;
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/**
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* Equivalent to `ReadonlyArray#traverseWithIndex(Applicative)`.
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*
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* @category traversing
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* @since 2.11.0
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*/
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var traverseReadonlyArrayWithIndex = function (f) {
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var g = (0, exports.traverseReadonlyNonEmptyArrayWithIndex)(f);
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return function (as) { return (_.isNonEmpty(as) ? g(as) : (0, exports.of)(_.emptyReadonlyArray)); };
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};
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exports.traverseReadonlyArrayWithIndex = traverseReadonlyArrayWithIndex;
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/**
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* Equivalent to `ReadonlyArray#traverseWithIndex(Applicative)`.
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*
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* @category traversing
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* @since 2.9.0
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*/
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exports.traverseArrayWithIndex = exports.traverseReadonlyArrayWithIndex;
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/**
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* Equivalent to `ReadonlyArray#traverse(Applicative)`.
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*
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* @category traversing
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* @since 2.9.0
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*/
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var traverseArray = function (f) { return (0, exports.traverseReadonlyArrayWithIndex)(function (_, a) { return f(a); }); };
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exports.traverseArray = traverseArray;
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/**
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* Equivalent to `ReadonlyArray#sequence(Applicative)`.
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*
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* @category traversing
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* @since 2.9.0
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*/
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exports.sequenceArray =
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/*#__PURE__*/ (0, exports.traverseArray)(function_1.identity);
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// -------------------------------------------------------------------------------------
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// deprecated
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// -------------------------------------------------------------------------------------
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/**
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* Use [`evaluate`](#evaluate) instead
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*
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* @category zone of death
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* @since 2.0.0
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* @deprecated
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*/
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var evalState = function (ma, s) { return ma(s)[0]; };
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exports.evalState = evalState;
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/**
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* Use [`execute`](#execute) instead
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*
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* @category zone of death
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* @since 2.0.0
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* @deprecated
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*/
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var execState = function (ma, s) { return ma(s)[1]; };
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exports.execState = execState;
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/**
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* This instance is deprecated, use small, specific instances instead.
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* For example if a function needs a `Functor` instance, pass `S.Functor` instead of `S.state`
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* (where `S` is from `import S from 'fp-ts/State'`)
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*
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* @category zone of death
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* @since 2.0.0
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* @deprecated
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*/
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exports.state = exports.Monad;
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