Make the object store visible in Observatory.

runtime/observatory/lib/src/service/object.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.
 
 part of service;
 
 // Some value smaller than the object ring, so requesting a large array
 // doesn't result in an expired ref because the elements lapped it in the
 // object ring.
 const int kDefaultFieldLimit = 100;
@@ skipping 1618 matching lines @@
   }
 
   Future setExceptionPauseMode(String mode) {
     return invokeRpc('setExceptionPauseMode', {'mode': mode});
   }
 
   Future<ServiceMap> getStack() {
     return invokeRpc('getStack', {});
   }
 
+  Future<ObjectStore> getObjectStore() {
+    return invokeRpc('_getObjectStore', {}).then((map) {
+      ObjectStore objectStore = new ObjectStore._empty(this);
+      objectStore._update(map, false);
+      return objectStore;
+    });
+  }
+
   Future<ServiceObject> _eval(ServiceObject target,
                               String expression) {
     Map params = {
       'targetId': target.id,
       'expression': expression,
     };
     return invokeRpc('evaluate', params);
   }
 
   Future<ServiceObject> evalFrame(int frameIndex,
@@ skipping 88 matching lines @@
     return _refreshMetrics('Native', nativeMetrics);
   }
 
   Future refreshMetrics() {
     return Future.wait([refreshDartMetrics(), refreshNativeMetrics()]);
   }
 
   String toString() => "Isolate($name)";
 }
 
+
+class NamedField {
+  final String name;
+  final ServiceObject value;
+  NamedField(this.name, this.value);
+}
+
+
+class ObjectStore extends ServiceObject {
+  @observable List<NamedField> fields = new List<NamedField>();
+
+  ObjectStore._empty(ServiceObjectOwner owner) : super._empty(owner);
+
+  void _update(ObservableMap map, bool mapIsRef) {
+    // Extract full properties.
+    _upgradeCollection(map, isolate);
+
+    if (mapIsRef) {
+      return;
+    }
+
+    fields.clear();
+    map['fields'].forEach((key, value) {
+      fields.add(new NamedField(key, value));
+    });
+    _loaded = true;
+  }
+}
+
+
 /// A [ServiceObject] which implements [ObservableMap].
 class ServiceMap extends ServiceObject implements ObservableMap {
   final ObservableMap _map = new ObservableMap();
   static String objectIdRingPrefix = 'objects/';
 
   bool get canCache {
     return (_type == 'Class' ||
             _type == 'Function' ||
             _type == 'Field') &&
            !_id.startsWith(objectIdRingPrefix);
@@ skipping 2316 matching lines @@
     var v = list[i];
     if ((v is ObservableMap) && _isServiceMap(v)) {
       list[i] = owner.getFromMap(v);
     } else if (v is ObservableList) {
       _upgradeObservableList(v, owner);
     } else if (v is ObservableMap) {
       _upgradeObservableMap(v, owner);
     }
   }
 }