webpack/lib/dependencies/AMDRuntimeModules.js

Packs ECMAScript/CommonJs/AMD modules for the browser. Allows you to split your codebase into multiple bundles, which can be loaded on demand. Supports loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.

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

"use strict";

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

/** @import { AmdOptions } from "./AMDPlugin" */

class AMDDefineRuntimeModule extends RuntimeModule {
	constructor() {
		super("amd define");
	}

	/**
	 * Returns true, if the runtime module should get it's own scope.
	 * When false, `generate()` must emit complete statements ending with `;`
	 * so a following runtime IIFE is not parsed as a call (ASI).
	 * @returns {boolean} true, if the runtime module should get it's own scope
	 */
	shouldIsolate() {
		return false;
	}

	/**
	 * Generates runtime code for this runtime module.
	 * @returns {string | null} runtime code
	 */
	generate() {
		return Template.asString([
			`${RuntimeGlobals.amdDefine} = function () {`,
			Template.indent("throw new Error('define cannot be used indirect');"),
			"};"
		]);
	}
}

class AMDOptionsRuntimeModule extends RuntimeModule {
	/**
	 * Returns true, if the runtime module should get it's own scope.
	 * When false, `generate()` must emit complete statements ending with `;`
	 * so a following runtime IIFE is not parsed as a call (ASI).
	 * @returns {boolean} true, if the runtime module should get it's own scope
	 */
	shouldIsolate() {
		return false;
	}

	/**
	 * Creates an instance of AMDOptionsRuntimeModule.
	 * @param {AmdOptions} options the AMD options
	 */
	constructor(options) {
		super("amd options");
		this.options = options;
	}

	/**
	 * Generates runtime code for this runtime module.
	 * @returns {string | null} runtime code
	 */
	generate() {
		return Template.asString([
			`${RuntimeGlobals.amdOptions} = ${JSON.stringify(this.options)};`
		]);
	}
}

module.exports.AMDDefineRuntimeModule = AMDDefineRuntimeModule;
module.exports.AMDOptionsRuntimeModule = AMDOptionsRuntimeModule;