merge new into master

node_modules/enhanced-resolve/lib/ModulesInHierarchicalDirectoriesPlugin.js

@@ -0,0 +1,47 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const { modulesResolveHandler } = require("./ModulesUtils");
+
+/** @typedef {import("./Resolver")} Resolver */
+/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
+
+module.exports = class ModulesInHierarchicalDirectoriesPlugin {
+	/**
+	 * @param {string | ResolveStepHook} source source
+	 * @param {string | string[]} directories directories
+	 * @param {string | ResolveStepHook} target target
+	 */
+	constructor(source, directories, target) {
+		this.source = source;
+		this.directories = /** @type {string[]} */ [...directories];
+		this.target = target;
+	}
+
+	/**
+	 * @param {Resolver} resolver the resolver
+	 * @returns {void}
+	 */
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver
+			.getHook(this.source)
+			.tapAsync(
+				"ModulesInHierarchicalDirectoriesPlugin",
+				(request, resolveContext, callback) => {
+					modulesResolveHandler(
+						resolver,
+						this.directories,
+						target,
+						request,
+						resolveContext,
+						callback,
+					);
+				},
+			);
+	}
+};