mirror of https://github.com/webpack/webpack.git
82 lines
1.5 KiB
JavaScript
82 lines
1.5 KiB
JavaScript
/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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"use strict";
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const asyncLib = require("neo-async");
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/** @typedef {import("./MultiCompiler")} MultiCompiler */
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/** @typedef {import("./Watching")} Watching */
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/**
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* @template T
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* @callback Callback
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* @param {(Error | null)=} err
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* @param {T=} result
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*/
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class MultiWatching {
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/**
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* @param {Watching[]} watchings child compilers' watchers
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* @param {MultiCompiler} compiler the compiler
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*/
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constructor(watchings, compiler) {
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this.watchings = watchings;
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this.compiler = compiler;
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}
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/**
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* @param {Callback<void>=} callback signals when the build has completed again
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* @returns {void}
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*/
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invalidate(callback) {
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if (callback) {
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asyncLib.each(
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this.watchings,
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(watching, callback) => watching.invalidate(callback),
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callback
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);
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} else {
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for (const watching of this.watchings) {
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watching.invalidate();
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}
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}
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}
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suspend() {
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for (const watching of this.watchings) {
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watching.suspend();
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}
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}
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resume() {
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for (const watching of this.watchings) {
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watching.resume();
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}
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}
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/**
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* @param {Callback<void>} callback signals when the watcher is closed
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* @returns {void}
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*/
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close(callback) {
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asyncLib.each(
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this.watchings,
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(watching, finishedCallback) => {
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watching.close(finishedCallback);
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},
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err => {
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this.compiler.hooks.watchClose.call();
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if (typeof callback === "function") {
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this.compiler.running = false;
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callback(err);
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}
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}
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);
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}
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}
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module.exports = MultiWatching;
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