Observatory improvements for exploring compiled code.

runtime/observatory/lib/src/elements/objectpool_view.dart

+// Copyright (c) 2015, 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 objectpool_view;
+
+import 'dart:async';
+import 'observatory_element.dart';
+import 'package:observatory/service.dart';
+import 'package:polymer/polymer.dart';
+
+@CustomTag('objectpool-view')
+class ObjectPoolViewElement extends ObservatoryElement {
+  @published ObjectPool pool;
+  @published List annotatedEntries;
+
+  ObjectPoolViewElement.created() : super.created();
+
+  bool isServiceObject(o) => o is ServiceObject;
+
+  void poolChanged(oldValue) {
+    annotateRawEntries();
+  }
+
+  Future annotateRawEntries() {
+    var tasks = pool.entries.map((entry) {
+     if (entry is int) {
+       var addr = entry.toRadixString(16);
+       return pool.isolate.getObjectByAddress(addr).then((result) {
+         return result is ServiceObject ? result : null;
+       });
+     } else {
+       return new Future.value(null);
+     }
+    });
+
+    return Future.wait(tasks).then((results) => annotatedEntries = results);
+  }
+
+  Future refresh() {
+    return pool.reload().then((_) => annotateRawEntries());
+  }
+}