Partial implementation of the 'setAnalysisRoots' API.

pkg/analysis_server/lib/src/protocol.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library protocol;
 
 import 'dart:convert' show JsonDecoder;
 
 /**
  * An abstract enumeration.
@@ skipping 444 matching lines @@
   /**
    * Initialize a newly created instance to represent an error condition caused
    * by a [request] that cannot be handled by any known handlers.
    */
   Response.unknownRequest(Request request)
     : this(request.id, new RequestError(-7, 'Unknown request'));
 
   Response.contextAlreadyExists(Request request)
     : this(request.id, new RequestError(-8, 'Context already exists'));
 
+  Response.unsupportedFeature(Request request, String message)
+    : this(request.id, new RequestError(-9, message));
+
   /**
    * Initialize a newly created instance based upon the given JSON data
    */
   factory Response.fromJson(Map<String, Object> json) {
     try {
       Object id = json[Response.ID];
       if (id is! String) {
         return null;
       }
       Object error = json[Response.ERROR];
@@ skipping 208 matching lines @@
    */
   Map<String, Object> toJson() {
     Map<String, Object> jsonObject = new Map<String, Object>();
     jsonObject[CODE] = code;
     jsonObject[MESSAGE] = message;
     if (!data.isEmpty) {
       jsonObject[DATA] = data;
     }
     return jsonObject;
   }
+
+  @override
+  String toString() => toJson().toString();
 }
 
 /**
  * Instances of the class [Notification] represent a notification from the
  * server about an event that occurred.
  */
 class Notification {
   /**
    * The name of the JSON attribute containing the name of the event that
    * triggered the notification.
@@ skipping 89 matching lines @@
   /**
    * The response to be returned as a result of the failure.
    */
   final Response response;
 
   /**
    * Initialize a newly created exception to return the given reponse.
    */
   RequestFailure(this.response);
 }