1 files changed, 64 insertions, 0 deletions
diff --git a/node_modules/webpack/lib/ResolverFactory.js b/node_modules/webpack/lib/ResolverFactory.js
new file mode 100644
index 00000000..47028ee7
--- /dev/null
+++ b/node_modules/webpack/lib/ResolverFactory.js
@@ -0,0 +1,64 @@
+/*
+ MIT License http://www.opensource.org/licenses/mit-license.php
+ Author Tobias Koppers @sokra
+ */
+"use strict";
+
+const { Tapable, HookMap, SyncHook, SyncWaterfallHook } = require("tapable");
+const Factory = require("enhanced-resolve").ResolverFactory;
+
+module.exports = class ResolverFactory extends Tapable {
+	constructor() {
+		super();
+		this.hooks = {
+			resolveOptions: new HookMap(
+				() => new SyncWaterfallHook(["resolveOptions"])
+			),
+			resolver: new HookMap(() => new SyncHook(["resolver", "resolveOptions"]))
+		};
+		this._pluginCompat.tap("ResolverFactory", options => {
+			let match;
+			match = /^resolve-options (.+)$/.exec(options.name);
+			if (match) {
+				this.hooks.resolveOptions.tap(
+					match[1],
+					options.fn.name || "unnamed compat plugin",
+					options.fn
+				);
+				return true;
+			}
+			match = /^resolver (.+)$/.exec(options.name);
+			if (match) {
+				this.hooks.resolver.tap(
+					match[1],
+					options.fn.name || "unnamed compat plugin",
+					options.fn
+				);
+				return true;
+			}
+		});
+		this.cache1 = new WeakMap();
+		this.cache2 = new Map();
+	}
+
+	get(type, resolveOptions) {
+		const cachedResolver = this.cache1.get(resolveOptions);
+		if (cachedResolver) return cachedResolver();
+		const ident = `${type}|${JSON.stringify(resolveOptions)}`;
+		const resolver = this.cache2.get(ident);
+		if (resolver) return resolver;
+		const newResolver = this._create(type, resolveOptions);
+		this.cache2.set(ident, newResolver);
+		return newResolver;
+	}
+
+	_create(type, resolveOptions) {
+		resolveOptions = this.hooks.resolveOptions.for(type).call(resolveOptions);
+		const resolver = Factory.createResolver(resolveOptions);
+		if (!resolver) {
+			throw new Error("No resolver created");
+		}
+		this.hooks.resolver.for(type).call(resolver, resolveOptions);
+		return resolver;
+	}
+};