source: frontend/node_modules/webpack/lib/PlatformPlugin.js

/*
        MIT License http://www.opensource.org/licenses/mit-license.php
        Authors Ivan Kopeykin @vankop
*/

"use strict";

/** @typedef {import("./Compiler")} Compiler */
/** @typedef {import("./config/target").PlatformTargetProperties} PlatformTargetProperties */

const PLUGIN_NAME = "PlatformPlugin";

/**
 * Should be used only for "target === false" or
 * when you want to overwrite platform target properties
 */
class PlatformPlugin {
        /**
         * Creates an instance of PlatformPlugin.
         * @param {Partial<PlatformTargetProperties>} platform target properties
         */
        constructor(platform) {
                /** @type {Partial<PlatformTargetProperties>} */
                this.platform = platform;
        }

        /**
         * Applies the plugin by registering its hooks on the compiler.
         * @param {Compiler} compiler the compiler instance
         * @returns {void}
         */
        apply(compiler) {
                compiler.hooks.environment.tap(PLUGIN_NAME, () => {
                        compiler.platform = {
                                ...compiler.platform,
                                ...this.platform
                        };
                });
        }
}

module.exports = PlatformPlugin;