Dart: Removes name conflicts from generated bindings.

services/dart/test/pingpong/main.dart

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 import 'dart:async';
 import 'mojo:application';
 import 'mojo:bindings';
 import 'mojo:core';
 
 import 'package:services/dart/test/pingpong_service.mojom.dart';
 
-class PingPongClientImpl extends PingPongClient {
+class PingPongClientImpl implements PingPongClient {
+  final PingPongClientStub stub;
   Completer _completer;
   int _count;
 
-  PingPongClientImpl.unbound(this._count, this._completer) : super.unbound() {
-    super.delegate = this;
+  PingPongClientImpl.unbound(this._count, this._completer)
+      : stub = new PingPongClientStub.unbound() {
+    stub.delegate = this;
   }
 
   void pong(int pongValue) {
     if (pongValue == _count) {
       _completer.complete(null);
-      close();
+      stub.close();
     }
   }
 }
 
-class PingPongServiceImpl extends PingPongService {
+class PingPongServiceImpl implements PingPongService {
+  PingPongServiceStub _stub;
   Application _application;
-  PingPongClientProxy _proxy;
+  PingPongClientProxy _pingPongClientProxy;
+  PingPongClient _pingPongClient;
 
   PingPongServiceImpl(Application application, MojoMessagePipeEndpoint endpoint)
-      : _application = application, super(endpoint) {
-    super.delegate = this;
+      : _application = application {
+    _stub = new PingPongServiceStub.fromEndpoint(endpoint)
+            ..delegate = this
+            ..listen();
   }
 
-  PingPongServiceImpl.fromStub(PingPongServiceStub stub)
-      : super.fromStub(stub) {
-    super.delegate = this;
+  PingPongServiceImpl.fromStub(this._stub) {
+    _stub.delegate = this;
   }
 
-  void setClient(PingPongClientProxy proxy) {
-    assert(_proxy == null);
-    _proxy = proxy;
+  listen() => _stub.listen();
+
+  void setClient(ProxyBase proxyBase) {
+    assert(_pingPongClientProxy == null);
+    _pingPongClientProxy = proxyBase;
+    _pingPongClient = _pingPongClientProxy.interface;
   }
 
   void ping(int pingValue) {
-    if (_proxy != null) {
-      _proxy.pong(pingValue + 1);
+    if (_pingPongClient != null) {
+      _pingPongClient.pong(pingValue + 1);
     }
   }
 
-  pingTargetUrl(String url, int count, Function responseFactory) async {
+  Future pingTargetUrl(String url, int count, Function responseFactory) async {
     if (_application == null) {
       return responseFactory(false);
     }
     var completer = new Completer();
-    var pingPongService = new PingPongServiceProxy.unbound();
-    _application.connectToService(url, pingPongService);
+    var pingPongServiceProxy = new PingPongServiceProxy.unbound();
+    var pingPongService = pingPongServiceProxy.interface;
+    _application.connectToService(url, pingPongServiceProxy);
 
     var pingPongClient = new PingPongClientImpl.unbound(count, completer);
     pingPongService.setClient(pingPongClient.stub);
-    pingPongClient.listen();
+    pingPongClient.stub.listen();
 
     for (var i = 0; i < count; i++) {
       pingPongService.ping(i);
     }
     await completer.future;
     pingPongService.quit();
 
     return responseFactory(true);
   }
 
-  pingTargetService(PingPongServiceProxy pingPongService,
-                    int count,
-                    Function responseFactory) async {
+  Future pingTargetService(ProxyBase proxyBase,
+                           int count,
+                           Function responseFactory) async {
+    var pingPongServiceProxy = proxyBase;
+    var pingPongService = pingPongServiceProxy.interface;
     var completer = new Completer();
     var client = new PingPongClientImpl.unbound(count, completer);
     pingPongService.setClient(client.stub);
-    client.listen();
+    client.stub.listen();
 
     for (var i = 0; i < count; i++) {
       pingPongService.ping(i);
     }
     await completer.future;
     pingPongService.quit();
 
     return responseFactory(true);
   }
 
   getPingPongService(PingPongServiceStub serviceStub) {
-    var pingPongService = new PingPongServiceImpl.fromStub(serviceStub);
-    pingPongService.listen();
+    new PingPongServiceImpl.fromStub(serviceStub)..listen();
   }
 
   void quit() {
-    if (_proxy != null) {
-      _proxy.close();
+    if (_pingPongClientProxy != null) {
+      _pingPongClientProxy.impl.close();
+      _pingPongClientProxy = null;
+      _pingPongClient = null;
     }
-    super.close();
+    _stub.close();
     if (_application != null) {
       _application.close();
     }
   }
 }
 
 class PingPongApplication extends Application {
   PingPongApplication.fromHandle(MojoHandle handle) : super.fromHandle(handle);
 
   void acceptConnection(String requestorUrl, ApplicationConnection connection) {
-    connection.provideService(PingPongService.name,
+    connection.provideService(PingPongServiceName,
         (endpoint) => new PingPongServiceImpl(this, endpoint));
     connection.listen();
   }
 }
 
 main(List args) {
   MojoHandle appHandle = new MojoHandle(args[0]);
   String url = args[1];
-  var pingPongApplication = new PingPongApplication.fromHandle(appHandle);
-  pingPongApplication.listen();
+  new PingPongApplication.fromHandle(appHandle);
 }