InferAsyncModulesPlugin.js
df143e4977c6master

InferAsyncModulesPlugin.js
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			/*
			MIT License http://www.opensource.org/licenses/mit-license.php
			Author Tobias Koppers @sokra
			*/

			"use strict";

			const HarmonyImportDependency = require("../dependencies/HarmonyImportDependency");

			/** @typedef {import("../Compiler")} Compiler */
			/** @typedef {import("../Module")} Module */

			class InferAsyncModulesPlugin {
			/**
			* Apply the plugin
			* @param {Compiler} compiler the compiler instance
			* @returns {void}
			*/
			apply(compiler) {
			compiler.hooks.compilation.tap("InferAsyncModulesPlugin", compilation => {
			const { moduleGraph } = compilation;
			compilation.hooks.finishModules.tap(
			"InferAsyncModulesPlugin",
			modules => {
			/** @type {Set<Module>} */
			const queue = new Set();
			for (const module of modules) {
			if (module.buildMeta && module.buildMeta.async) {
			queue.add(module);
			}
			}
			for (const module of queue) {
			moduleGraph.setAsync(module);
			const connections = moduleGraph.getIncomingConnections(module);
			for (const connection of connections) {
			const dep = connection.dependency;
			if (
			dep instanceof HarmonyImportDependency &&
			connection.isTargetActive(undefined)
			) {
			queue.add(connection.originModule);
			}
			}
			}
			}
			);
			});
			}
			}

			module.exports = InferAsyncModulesPlugin;