banboshi_V2/HalftoneWeb/node_modules/fp-ts/lib/Functor.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.getFunctorComposition = exports.let = exports.bindTo = exports.flap = exports.map = void 0;
/**
 * A `Functor` is a type constructor which supports a mapping operation `map`.
 *
 * `map` can be used to turn functions `a -> b` into functions `f a -> f b` whose argument and return types use the type
 * constructor `f` to represent some computational context.
 *
 * Instances must satisfy the following laws:
 *
 * 1. Identity: `F.map(fa, a => a) <-> fa`
 * 2. Composition: `F.map(fa, a => bc(ab(a))) <-> F.map(F.map(fa, ab), bc)`
 *
 * @since 2.0.0
 */
var function_1 = require("./function");
function map(F, G) {
    return function (f) { return function (fa) { return F.map(fa, function (ga) { return G.map(ga, f); }); }; };
}
exports.map = map;
function flap(F) {
    return function (a) { return function (fab) { return F.map(fab, function (f) { return f(a); }); }; };
}
exports.flap = flap;
function bindTo(F) {
    return function (name) { return function (fa) { return F.map(fa, function (a) {
        var _a;
        return (_a = {}, _a[name] = a, _a);
    }); }; };
}
exports.bindTo = bindTo;
function let_(F) {
    return function (name, f) { return function (fa) { return F.map(fa, function (a) {
        var _a;
        return Object.assign({}, a, (_a = {}, _a[name] = f(a), _a));
    }); }; };
}
exports.let = let_;
/** @deprecated */
function getFunctorComposition(F, G) {
    var _map = map(F, G);
    return {
        map: function (fga, f) { return (0, function_1.pipe)(fga, _map(f)); }
    };
}
exports.getFunctorComposition = getFunctorComposition;