"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const freeze_js_1 = __importDefault(require("./freeze.js"));
/**
 * Returns a function that always returns the supplied value.
 *
 * Useful for replacing an object outright rather than merging it.
 *
 * @function
 * @sig a -> (* -> a)
 * @memberOf u
 * @param  {*} value what to return from returned function.
 * @return {function} a new function that will always return value.
 *
 * @example
 * var alwaysFour = u.constant(4);
 * expect(alwaysFour(32)).toEqual(4);
 *
 * @example
 * var user = {
 *   name: 'Mitch',
 *   favorites: {
 *     band: 'Nirvana',
 *     movie: 'The Matrix'
 *   }
 * };
 *
 * var newFavorites = {
 *   band: 'Coldplay'
 * };
 *
 * var result = u({ favorites: u.constant(newFavorites) }, user);
 *
 * expect(result).toEqual({ name: 'Mitch', favorites: { band: 'Coldplay' } });
 */
function constant(value) {
    const frozen = (0, freeze_js_1.default)(value);
    return () => frozen;
}
exports.default = constant;
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