更新

node_modules/webpack/lib/DependencyTemplates.js

@@ -0,0 +1,67 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const { DEFAULTS } = require("./config/defaults");
+const createHash = require("./util/createHash");
+
+/** @typedef {import("./Compilation").DependencyConstructor} DependencyConstructor */
+/** @typedef {import("./DependencyTemplate")} DependencyTemplate */
+/** @typedef {import("./util/Hash").HashFunction} HashFunction */
+
+class DependencyTemplates {
+	/**
+	 * @param {HashFunction} hashFunction the hash function to use
+	 */
+	constructor(hashFunction = DEFAULTS.HASH_FUNCTION) {
+		/** @type {Map<DependencyConstructor, DependencyTemplate>} */
+		this._map = new Map();
+		/** @type {string} */
+		this._hash = "31d6cfe0d16ae931b73c59d7e0c089c0";
+		/** @type {HashFunction} */
+		this._hashFunction = hashFunction;
+	}
+
+	/**
+	 * @param {DependencyConstructor} dependency Constructor of Dependency
+	 * @returns {DependencyTemplate | undefined} template for this dependency
+	 */
+	get(dependency) {
+		return this._map.get(dependency);
+	}
+
+	/**
+	 * @param {DependencyConstructor} dependency Constructor of Dependency
+	 * @param {DependencyTemplate} dependencyTemplate template for this dependency
+	 * @returns {void}
+	 */
+	set(dependency, dependencyTemplate) {
+		this._map.set(dependency, dependencyTemplate);
+	}
+
+	/**
+	 * @param {string} part additional hash contributor
+	 * @returns {void}
+	 */
+	updateHash(part) {
+		const hash = createHash(this._hashFunction);
+		hash.update(`${this._hash}${part}`);
+		this._hash = hash.digest("hex");
+	}
+
+	getHash() {
+		return this._hash;
+	}
+
+	clone() {
+		const newInstance = new DependencyTemplates(this._hashFunction);
+		newInstance._map = new Map(this._map);
+		newInstance._hash = this._hash;
+		return newInstance;
+	}
+}
+
+module.exports = DependencyTemplates;