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node_modules/webpack/lib/HashedModuleIdsPlugin.js

@@ -3,38 +3,57 @@
 	Author Tobias Koppers @sokra
 */
 "use strict";
-const createHash = require("crypto").createHash;
+const createHash = require("./util/createHash");
+
+const validateOptions = require("schema-utils");
+const schema = require("../schemas/plugins/HashedModuleIdsPlugin.json");
+
+/** @typedef {import("../declarations/plugins/HashedModuleIdsPlugin").HashedModuleIdsPluginOptions} HashedModuleIdsPluginOptions */
 
 class HashedModuleIdsPlugin {
+	/**
+	 * @param {HashedModuleIdsPluginOptions=} options options object
+	 */
 	constructor(options) {
-		this.options = Object.assign({
-			hashFunction: "md5",
-			hashDigest: "base64",
-			hashDigestLength: 4
-		}, options);
+		if (!options) options = {};
+
+		validateOptions(schema, options, "Hashed Module Ids Plugin");
+
+		/** @type {HashedModuleIdsPluginOptions} */
+		this.options = Object.assign(
+			{
+				context: null,
+				hashFunction: "md4",
+				hashDigest: "base64",
+				hashDigestLength: 4
+			},
+			options
+		);
 	}
 
 	apply(compiler) {
 		const options = this.options;
-		compiler.plugin("compilation", (compilation) => {
+		compiler.hooks.compilation.tap("HashedModuleIdsPlugin", compilation => {
 			const usedIds = new Set();
-			compilation.plugin("before-module-ids", (modules) => {
-				modules.forEach((module) => {
-					if(module.id === null && module.libIdent) {
-						const id = module.libIdent({
-							context: this.options.context || compiler.options.context
-						});
-						const hash = createHash(options.hashFunction);
-						hash.update(id);
-						const hashId = hash.digest(options.hashDigest);
-						let len = options.hashDigestLength;
-						while(usedIds.has(hashId.substr(0, len)))
-							len++;
-						module.id = hashId.substr(0, len);
-						usedIds.add(module.id);
+			compilation.hooks.beforeModuleIds.tap(
+				"HashedModuleIdsPlugin",
+				modules => {
+					for (const module of modules) {
+						if (module.id === null && module.libIdent) {
+							const id = module.libIdent({
+								context: this.options.context || compiler.options.context
+							});
+							const hash = createHash(options.hashFunction);
+							hash.update(id);
+							const hashId = hash.digest(options.hashDigest);
+							let len = options.hashDigestLength;
+							while (usedIds.has(hashId.substr(0, len))) len++;
+							module.id = hashId.substr(0, len);
+							usedIds.add(module.id);
+						}
 					}
-				});
-			});
+				}
+			);
 		});
 	}
 }