source: frontend/node_modules/webpack/lib/runtime/RelativeUrlRuntimeModule.js

/*
        MIT License http://www.opensource.org/licenses/mit-license.php
*/

"use strict";

const RuntimeGlobals = require("../RuntimeGlobals");
const Template = require("../Template");
const HelperRuntimeModule = require("./HelperRuntimeModule");

/** @typedef {import("../Compilation")} Compilation */

class RelativeUrlRuntimeModule extends HelperRuntimeModule {
        constructor() {
                super("relative url");
        }

        /**
         * Generates runtime code for this runtime module.
         * @returns {string | null} runtime code
         */
        generate() {
                const compilation = /** @type {Compilation} */ (this.compilation);
                const { runtimeTemplate } = compilation;
                return Template.asString([
                        `${RuntimeGlobals.relativeUrl} = function RelativeURL(url) {`,
                        Template.indent([
                                'var realUrl = new URL(url, "x:/");',
                                "var values = {};",
                                "for (var key in realUrl) values[key] = realUrl[key];",
                                "values.href = url;",
                                'values.pathname = url.replace(/[?#].*/, "");',
                                'values.origin = values.protocol = "";',
                                `values.toString = values.toJSON = ${runtimeTemplate.returningFunction(
                                        "url"
                                )};`,
                                "for (var key in values) Object.defineProperty(this, key, { enumerable: true, configurable: true, value: values[key] });"
                        ]),
                        "};",
                        `${RuntimeGlobals.relativeUrl}.prototype = URL.prototype;`
                ]);
        }
}

module.exports = RelativeUrlRuntimeModule;