webpack/lib/HotUpdateChunkTemplate.js

/*
	MIT License http://www.opensource.org/licenses/mit-license.php
	Author Tobias Koppers @sokra
*/
"use strict";

const Template = require("./Template");
const Chunk = require("./Chunk");
const SyncWaterfallHook = require("tapable").SyncWaterfallHook;
const SyncHook = require("tapable").SyncHook;

module.exports = class HotUpdateChunkTemplate extends Template {
	constructor(outputOptions) {
		super(outputOptions);
		this.hooks = {
			modules: new SyncWaterfallHook(["source", "modules", "removedModules", "moduleTemplate", "dependencyTemplates"]),
			render: new SyncWaterfallHook(["source", "modules", "removedModules", "hash", "id", "moduleTemplate", "dependencyTemplates"]),
			hash: new SyncHook(["hash"]),
		};
	}

	render(id, modules, removedModules, hash, moduleTemplate, dependencyTemplates) {
		const hotUpdateChunk = new Chunk();
		hotUpdateChunk.id = id;
		hotUpdateChunk.setModules(modules);
		hotUpdateChunk.removedModules = removedModules;
		const modulesSource = this.renderChunkModules(hotUpdateChunk, () => true, moduleTemplate, dependencyTemplates);
		const core = this.hooks.modules.call(modulesSource, modules, removedModules, moduleTemplate, dependencyTemplates);
		const source = this.hooks.render.call(core, modules, removedModules, hash, id, moduleTemplate, dependencyTemplates);
		return source;
	}

	updateHash(hash) {
		hash.update("HotUpdateChunkTemplate");
		hash.update("1");
		this.hooks.hash.call(hash);
	}
};