Heap snapshot visualizations

runtime/observatory/lib/src/elements/heap_profile.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.
 
 library heap_profile_element;
 
 import 'dart:async';
 import 'dart:html';
 import 'observatory_element.dart';
 import 'package:observatory/app.dart';
 import 'package:observatory/service.dart';
 import 'package:observatory/elements.dart';
 import 'package:polymer/polymer.dart';
 
 class ClassSortedTable extends SortedTable {
 
   ClassSortedTable(columns) : super(columns);
 
   @override
   dynamic getSortKeyFor(int row, int col) {
     if (col == 0) {
       // Use class name as sort key.
       return rows[row].values[col].name;
     }
     return super.getSortKeyFor(row, col);
   }
 }
 
-/// Displays an Error response.
 @CustomTag('heap-profile')
 class HeapProfileElement extends ObservatoryElement {
   @observable String lastServiceGC = '---';
   @observable String lastAccumulatorReset = '---';
 
   // Pie chart of new space usage.
   var _newPieDataTable;
   var _newPieChart;
 
   // Pie chart of old space usage.
@@ skipping 56 matching lines @@
     _classTableBody = shadowRoot.querySelector('#classTableBody');
     _subscription = app.vm.gcEvents.where(
         (event) => event.isolate == isolate).listen(_onEvent);
   }
 
   @override
   void detached() {
     _subscription.cancel();
     super.detached();
   }
-  
+
   // Keep at most one outstanding auto-refresh RPC.
   bool refreshAutoPending = false;
   bool refreshAutoQueued = false;
-  
+
   void _onEvent(ServiceEvent event) {
     if (autoRefresh && event.eventType == 'GC') {
       if (!refreshAutoPending) {
         refreshAuto();
       } else {
         // Remember to refresh once more, to ensure latest profile.
         refreshAutoQueued = true;
       }
     }
   }
@@ skipping 104 matching lines @@
     classRef.ref = row.values[0];
 
     for (var i = 1; i < row.values.length; i++) {
       if (SPACER_COLUMNS.contains(i)) {
         // Skip spacer columns.
         continue;
       }
       var cell = tr.children[i];
       cell.title = row.values[i].toString();
       cell.text = classTable.getFormattedValue(rowIndex, i);
+      if (i > 1) {  // Numbers.
+        cell.style.textAlign = 'right';
+      }
     }
   }
 
   void _updateClassTableInDom() {
     assert(_classTableBody != null);
     // Resize DOM table.
     if (_classTableBody.children.length > classTable.sortedRows.length) {
       // Shrink the table.
       var deadRows =
           _classTableBody.children.length - classTable.sortedRows.length;
@@ skipping 116 matching lines @@
   }
 
   @observable String formattedTotalCollectionTime(bool newSpace) {
     if (profile == null) {
       return '';
     }
     var heap = newSpace ? isolate.newSpace : isolate.oldSpace;
     return '${Utils.formatSeconds(heap.totalCollectionTimeInSeconds)} secs';
   }
 }