1 files changed, 47 insertions, 0 deletions
diff --git a/node_modules/enhanced-resolve/lib/ConcordModulesPlugin.js b/node_modules/enhanced-resolve/lib/ConcordModulesPlugin.js
new file mode 100644
index 00000000..9fbe579d
--- /dev/null
+++ b/node_modules/enhanced-resolve/lib/ConcordModulesPlugin.js
@@ -0,0 +1,47 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const concord = require("./concord");
+const DescriptionFileUtils = require("./DescriptionFileUtils");
+const getInnerRequest = require("./getInnerRequest");
+
+module.exports = class ConcordModulesPlugin {
+	constructor(source, options, target) {
+		this.source = source;
+		this.options = options;
+		this.target = target;
+	}
+
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver.getHook(this.source).tapAsync("ConcordModulesPlugin", (request, resolveContext, callback) => {
+			const innerRequest = getInnerRequest(resolver, request);
+			if(!innerRequest) return callback();
+			const concordField = DescriptionFileUtils.getField(request.descriptionFileData, "concord");
+			if(!concordField) return callback();
+			const data = concord.matchModule(request.context, concordField, innerRequest);
+			if(data === innerRequest) return callback();
+			if(data === undefined) return callback();
+			if(data === false) {
+				const ignoreObj = Object.assign({}, request, {
+					path: false
+				});
+				return callback(null, ignoreObj);
+			}
+			const obj = Object.assign({}, request, {
+				path: request.descriptionFileRoot,
+				request: data
+			});
+			resolver.doResolve(target, obj, "aliased from description file " + request.descriptionFilePath + " with mapping '" + innerRequest + "' to '" + data + "'", resolveContext, (err, result) => {
+				if(err) return callback(err);
+
+				// Don't allow other aliasing or raw request
+				if(result === undefined) return callback(null, null);
+				callback(null, result);
+			});
+		});
+	}
+};