webpack/lib/util/preloadModuleType.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 Alexander Akait @alexander-akait
*/

"use strict";

/** @import NormalModuleFactory from "../NormalModuleFactory" */
/** @typedef {import("./lazyModule").LazyModuleAccessor<EXPECTED_ANY>} AnyLazyModuleAccessor */

/**
 * Warms the modules a type's `createParser`/`createGenerator`/`createModuleClass`
 * taps read, at the factory's async boundary — those hooks are synchronous, so
 * they cannot await the load themselves.
 * @param {NormalModuleFactory} normalModuleFactory the normal module factory
 * @param {string} pluginName name of the tapping plugin
 * @param {Iterable<[string, AnyLazyModuleAccessor[]]>} table module type to the accessors its taps read
 * @returns {void}
 */
const preloadModuleType = (normalModuleFactory, pluginName, table) => {
	for (const [type, accessors] of table) {
		normalModuleFactory.hooks.prepareModuleType
			.for(type)
			.tapPromise(pluginName, () =>
				Promise.all(accessors.map((accessor) => accessor())).then(
					() => undefined
				)
			);
	}
};

module.exports = preloadModuleType;