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

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

"use strict";

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

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

class GetMainFilenameRuntimeModule extends RuntimeModule {
        /**
         * @param {string} name readable name
         * @param {string} global global object binding
         * @param {string} filename main file name
         */
        constructor(name, global, filename) {
                super(`get ${name} filename`);
                /** @type {string} */
                this.global = global;
                /** @type {string} */
                this.filename = filename;
        }

        /**
         * Generates runtime code for this runtime module.
         * @returns {string | null} runtime code
         */
        generate() {
                const { global, filename } = this;
                const compilation = /** @type {Compilation} */ (this.compilation);
                const chunk = /** @type {Chunk} */ (this.chunk);
                const { runtimeTemplate } = compilation;
                const url = compilation.getPath(JSON.stringify(filename), {
                        hash: `" + ${RuntimeGlobals.getFullHash}() + "`,
                        hashWithLength: (length) =>
                                `" + ${RuntimeGlobals.getFullHash}().slice(0, ${length}) + "`,
                        chunk,
                        runtime: chunk.runtime
                });
                return Template.asString([
                        `${global} = ${runtimeTemplate.returningFunction(url)};`
                ]);
        }
}

module.exports = GetMainFilenameRuntimeModule;