@beenotung/tslib/either.js

utils library in Typescript

"use strict";
/**
 * Created by beenotung on 3/8/17.
 */
Object.defineProperty(exports, "__esModule", { value: true });
exports.Either = void 0;
exports.right = right;
exports.left = left;
function right(r) {
    const res = {
        isLeft: false,
        isRight: true,
        getLeft: () => {
            throw new TypeError('get left on right Either');
        },
        getRight: () => r,
        mmap: (fl, fr) => right(fr(r)),
        mapLeft: (f) => res,
        mapRight: (f) => right(f(r)),
        bindLeft: (f) => res,
        bindRight: (f) => f(r),
    };
    return res;
}
function left(l) {
    const res = {
        isLeft: true,
        isRight: false,
        getLeft: () => l,
        getRight: () => {
            throw new TypeError('get right on left Either');
        },
        mmap: (fl, fr) => left(fl(l)),
        mapLeft: (f) => left(f(l)),
        mapRight: (f) => res,
        bindLeft: (f) => f(l),
        bindRight: (f) => res,
    };
    return res;
}
var Either;
(function (Either) {
    function get(either) {
        return either.isLeft ? either.getLeft() : either.getRight();
    }
    Either.get = get;
})(Either || (exports.Either = Either = {}));