webpack/lib/RequireJsStuffPlugin.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
	Author Tobias Koppers @sokra
*/

"use strict";

const {
	JAVASCRIPT_MODULE_TYPE_AUTO,
	JAVASCRIPT_MODULE_TYPE_DYNAMIC
} = require("./ModuleTypeConstants");
const RuntimeGlobals = require("./RuntimeGlobals");
const ConstDependency = require("./dependencies/ConstDependency");
const {
	toConstantDependency
} = require("./javascript/JavascriptParserHelpers");

/** @typedef {import("../declarations/WebpackOptions").JavascriptParserOptions} JavascriptParserOptions */
/** @typedef {import("./Compiler")} Compiler */
/** @typedef {import("./javascript/JavascriptParser")} JavascriptParser */

const PLUGIN_NAME = "RequireJsStuffPlugin";

module.exports = class RequireJsStuffPlugin {
	/**
	 * Apply the plugin
	 * @param {Compiler} compiler the compiler instance
	 * @returns {void}
	 */
	apply(compiler) {
		compiler.hooks.compilation.tap(
			PLUGIN_NAME,
			(compilation, { normalModuleFactory }) => {
				compilation.dependencyTemplates.set(
					ConstDependency,
					new ConstDependency.Template()
				);
				/**
				 * @param {JavascriptParser} parser the parser
				 * @param {JavascriptParserOptions} parserOptions options
				 * @returns {void}
				 */
				const handler = (parser, parserOptions) => {
					if (
						parserOptions.requireJs === undefined ||
						!parserOptions.requireJs
					) {
						return;
					}

					parser.hooks.call
						.for("require.config")
						.tap(PLUGIN_NAME, toConstantDependency(parser, "undefined"));
					parser.hooks.call
						.for("requirejs.config")
						.tap(PLUGIN_NAME, toConstantDependency(parser, "undefined"));

					parser.hooks.expression
						.for("require.version")
						.tap(
							PLUGIN_NAME,
							toConstantDependency(parser, JSON.stringify("0.0.0"))
						);
					parser.hooks.expression
						.for("requirejs.onError")
						.tap(
							PLUGIN_NAME,
							toConstantDependency(
								parser,
								RuntimeGlobals.uncaughtErrorHandler,
								[RuntimeGlobals.uncaughtErrorHandler]
							)
						);
				};
				normalModuleFactory.hooks.parser
					.for(JAVASCRIPT_MODULE_TYPE_AUTO)
					.tap(PLUGIN_NAME, handler);
				normalModuleFactory.hooks.parser
					.for(JAVASCRIPT_MODULE_TYPE_DYNAMIC)
					.tap(PLUGIN_NAME, handler);
			}
		);
	}
};