Dart: Adds optional named arguments for creating bindings.

mojo/public/dart/src/application_connection.dart

 // Copyright 2014 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.
 
 part of application;
 
 typedef Object ServiceFactory(core.MojoMessagePipeEndpoint endpoint);
 typedef void FallbackServiceFactory(String interfaceName,
     core.MojoMessagePipeEndpoint endpoint);
 
 
 class LocalServiceProvider implements ServiceProvider {
   final ApplicationConnection connection;
   ServiceProviderStub _stub;
 
   LocalServiceProvider(this.connection, this._stub) {
-    _stub.delegate = this;
+    _stub.impl = this;
   }
 
-  listen() => _stub.listen();
+  listen({Function onClosed}) => _stub.listen(onClosed: _closer(onClosed));
 
-  void close({bool nodefer : false}) => _stub.close(nodefer: nodefer);
+  Function _closer(Function onClosed) {
+    return (() {
+      if (onClosed != null) {
+        onClosed();
+      }
+      close();
+    });
+  }
+
+  void close({bool nodefer: false}) => _stub.close(nodefer: nodefer);
 
   void connectToService(String interfaceName,
       core.MojoMessagePipeEndpoint pipe) {
     if (connection._nameToServiceFactory.containsKey(interfaceName)) {
       connection._nameToServiceFactory[interfaceName](pipe);
       return;
     }
     if (connection.fallbackServiceFactory != null) {
       connection.fallbackServiceFactory(interfaceName, pipe);
       return;
@@ skipping 31 matching lines @@
   final _nameToServiceFactory = new Map<String, ServiceFactory>();
   FallbackServiceFactory _fallbackServiceFactory;
 
   ApplicationConnection(ServiceProviderStub stub, ServiceProviderProxy proxy)
       : remoteServiceProvider = proxy {
     if (stub != null) _localServiceProvider =
         new LocalServiceProvider(this, stub);
   }
 
   FallbackServiceFactory get fallbackServiceFactory => _fallbackServiceFactory;
-                         set fallbackServiceFactory(FallbackServiceFactory f) {
+  set fallbackServiceFactory(FallbackServiceFactory f) {
     assert(_localServiceProvider != null);
     _fallbackServiceFactory = f;
   }
 
   bindings.ProxyBase requestService(bindings.ProxyBase proxy) {
     assert(!proxy.impl.isBound &&
         (remoteServiceProvider != null) &&
         remoteServiceProvider.impl.isBound);
     var pipe = new core.MojoMessagePipe();
     proxy.impl.bind(pipe.endpoints[0]);
-    remoteServiceProvider.ptr.connectToService(
-        proxy.name, pipe.endpoints[1]);
+    remoteServiceProvider.ptr.connectToService(proxy.name, pipe.endpoints[1]);
     return proxy;
   }
 
   void provideService(String interfaceName, ServiceFactory factory) {
     assert(_localServiceProvider != null);
     _nameToServiceFactory[interfaceName] = factory;
   }
 
-  void listen() {
+  void listen({Function onClosed}) {
     assert(_localServiceProvider != null);
-    _localServiceProvider.listen();
+    _localServiceProvider.listen(onClosed: _closer(onClosed));
+  }
+
+  Function _closer(Function onClosed) {
+    return (() {
+      if (onClosed != null) {
+        onClosed();
+      }
+      close();
+    });
   }
 
   void close({bool nodefer: false}) {
     if (remoteServiceProvider != null) {
       remoteServiceProvider.close();
       remoteServiceProvider = null;
     }
     if (_localServiceProvider != null) {
       _localServiceProvider.close(nodefer: nodefer);
       _localServiceProvider = null;
     }
 
   }
 }