Expose Service Describer in Dart mojo package

mojo/dart/packages/mojo_services/lib/nfc/nfc.mojom.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.
 
 library nfc_mojom;
 
 import 'dart:async';
 
 import 'package:mojo/bindings.dart' as bindings;
 import 'package:mojo/core.dart' as core;
@@ skipping 490 matching lines @@
 }
 
 
 
 
 const int _NfcTransmission_cancelName = 0;
 
 
 
 class _NfcTransmissionServiceDescription implements service_describer.ServiceDescription {
-  dynamic getTopLevelInterface([Function responseFactory]) => null;
+  dynamic getTopLevelInterface([Function responseFactory]) =>
+      responseFactory(null);
 
-  dynamic getTypeDefinition(String typeKey, [Function responseFactory]) => null;
+  dynamic getTypeDefinition(String typeKey, [Function responseFactory]) =>
+      responseFactory(null);
 
-  dynamic getAllTypeDefinitions([Function responseFactory]) => null;
+  dynamic getAllTypeDefinitions([Function responseFactory]) =>
+      responseFactory(null);
 }
 
 abstract class NfcTransmission {
   static const String serviceName = null;
   void cancel();
 }
 
 
 class _NfcTransmissionProxyImpl extends bindings.Proxy {
   _NfcTransmissionProxyImpl.fromEndpoint(
@@ skipping 149 matching lines @@
     _impl = d;
   }
 
   String toString() {
     var superString = super.toString();
     return "NfcTransmissionStub($superString)";
   }
 
   int get version => 0;
 
-  service_describer.ServiceDescription get serviceDescription =>
-    new _NfcTransmissionServiceDescription();
+  static service_describer.ServiceDescription _cachedServiceDescription;
+  static service_describer.ServiceDescription get serviceDescription {
+    if (_cachedServiceDescription == null) {
+      _cachedServiceDescription = new _NfcTransmissionServiceDescription();
+    }
+    return _cachedServiceDescription;
+  }
 }
 
 const int _NfcReceiver_onReceivedNfcDataName = 0;
 
 
 
 class _NfcReceiverServiceDescription implements service_describer.ServiceDescription {
-  dynamic getTopLevelInterface([Function responseFactory]) => null;
+  dynamic getTopLevelInterface([Function responseFactory]) =>
+      responseFactory(null);
 
-  dynamic getTypeDefinition(String typeKey, [Function responseFactory]) => null;
+  dynamic getTypeDefinition(String typeKey, [Function responseFactory]) =>
+      responseFactory(null);
 
-  dynamic getAllTypeDefinitions([Function responseFactory]) => null;
+  dynamic getAllTypeDefinitions([Function responseFactory]) =>
+      responseFactory(null);
 }
 
 abstract class NfcReceiver {
   static const String serviceName = "nfc::NfcReceiver";
   void onReceivedNfcData(NfcData nfcData);
 }
 
 
 class _NfcReceiverProxyImpl extends bindings.Proxy {
   _NfcReceiverProxyImpl.fromEndpoint(
@@ skipping 150 matching lines @@
     _impl = d;
   }
 
   String toString() {
     var superString = super.toString();
     return "NfcReceiverStub($superString)";
   }
 
   int get version => 0;
 
-  service_describer.ServiceDescription get serviceDescription =>
-    new _NfcReceiverServiceDescription();
+  static service_describer.ServiceDescription _cachedServiceDescription;
+  static service_describer.ServiceDescription get serviceDescription {
+    if (_cachedServiceDescription == null) {
+      _cachedServiceDescription = new _NfcReceiverServiceDescription();
+    }
+    return _cachedServiceDescription;
+  }
 }
 
 const int _Nfc_transmitOnNextConnectionName = 0;
 const int _Nfc_registerName = 1;
 const int _Nfc_unregisterName = 2;
 
 
 
 class _NfcServiceDescription implements service_describer.ServiceDescription {
-  dynamic getTopLevelInterface([Function responseFactory]) => null;
+  dynamic getTopLevelInterface([Function responseFactory]) =>
+      responseFactory(null);
 
-  dynamic getTypeDefinition(String typeKey, [Function responseFactory]) => null;
+  dynamic getTypeDefinition(String typeKey, [Function responseFactory]) =>
+      responseFactory(null);
 
-  dynamic getAllTypeDefinitions([Function responseFactory]) => null;
+  dynamic getAllTypeDefinitions([Function responseFactory]) =>
+      responseFactory(null);
 }
 
 abstract class Nfc {
   static const String serviceName = "nfc::Nfc";
   dynamic transmitOnNextConnection(NfcData nfcData,Object transmission,[Function responseFactory = null]);
   void register();
   void unregister();
 }
 
 
@@ skipping 221 matching lines @@
     _impl = d;
   }
 
   String toString() {
     var superString = super.toString();
     return "NfcStub($superString)";
   }
 
   int get version => 0;
 
-  service_describer.ServiceDescription get serviceDescription =>
-    new _NfcServiceDescription();
+  static service_describer.ServiceDescription _cachedServiceDescription;
+  static service_describer.ServiceDescription get serviceDescription {
+    if (_cachedServiceDescription == null) {
+      _cachedServiceDescription = new _NfcServiceDescription();
+    }
+    return _cachedServiceDescription;
+  }
 }