Add Function based profile tree

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

 // Copyright (c) 2013, 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 cpu_profile_element;
 
+import 'dart:async';
 import 'dart:html';
 import 'observatory_element.dart';
 import 'package:logging/logging.dart';
 import 'package:observatory/service.dart';
 import 'package:observatory/app.dart';
+import 'package:observatory/cpu_profile.dart';
 import 'package:observatory/elements.dart';
 import 'package:polymer/polymer.dart';
 
 class ProfileCodeTrieNodeTreeRow extends TableTreeRow {
-  final ServiceMap profile;
+  final CpuProfile profile;
   @reflectable final CodeTrieNode root;
   @reflectable final CodeTrieNode node;
-  @reflectable Code get code => node.code;
+  @reflectable Code get code => node.profileCode.code;
 
   @reflectable String tipKind = '';
   @reflectable String tipParent = '';
   @reflectable String tipExclusive = '';
   @reflectable String tipTicks = '';
   @reflectable String tipTime = '';
 
   ProfileCodeTrieNodeTreeRow(this.profile, this.root, this.node,
                              TableTree tree,
                              ProfileCodeTrieNodeTreeRow parent)
-      : super(tree, parent) {
+  : super(tree, parent) {
     assert(root != null);
     assert(node != null);
     tipTicks = '${node.count}';
-    var period = profile['period'];
-    var MICROSECONDS_PER_SECOND = 1000000.0;
-    var seconds = (period * node.count) / MICROSECONDS_PER_SECOND; // seconds
+    var seconds = profile.approximateSecondsForCount(node.count);
     tipTime = Utils.formatTimePrecise(seconds);
     if (code.kind == CodeKind.Tag) {
       tipKind = 'Tag (category)';
       if (parent == null) {
         tipParent = Utils.formatPercent(node.count, root.count);
       } else {
         tipParent = Utils.formatPercent(node.count, parent.node.count);
       }
       tipExclusive = Utils.formatPercent(node.count, root.count);
     } else {
       if ((code.kind == CodeKind.Collected) ||
-          (code.kind == CodeKind.Reused)) {
+      (code.kind == CodeKind.Reused)) {
         tipKind = 'Garbage Collected Code';
       } else {
         tipKind = '${code.kind} (Function)';
       }
       if (parent == null) {
         tipParent = Utils.formatPercent(node.count, root.count);
       } else {
         tipParent = Utils.formatPercent(node.count, parent.node.count);
       }
-      tipExclusive = Utils.formatPercent(node.code.exclusiveTicks, root.count);
+      tipExclusive =
+      Utils.formatPercent(node.profileCode.exclusiveTicks, root.count);
     }
   }
 
   bool shouldDisplayChild(CodeTrieNode childNode, double threshold) {
     return ((childNode.count / node.count) > threshold) ||
-            ((childNode.code.exclusiveTicks / root.count) > threshold);
+    ((childNode.profileCode.exclusiveTicks / root.count) > threshold);
   }
 
   void _buildTooltip(DivElement memberList, Map<String, String> items) {
     items.forEach((k, v) {
       var item = new DivElement();
       item.classes.add('memberItem');
       var name = new DivElement();
       name.classes.add('memberName');
       name.classes.add('white');
       name.text = k;
       var value = new DivElement();
       value.classes.add('memberValue');
       value.classes.add('white');
       value.text = v;
       item.children.add(name);
       item.children.add(value);
       memberList.children.add(item);
     });
   }
 
   void onShow() {
     super.onShow();
     if (children.length == 0) {
-      var threshold = profile['threshold'];
+      var threshold = profile.displayThreshold;
       for (var childNode in node.children) {
         if (!shouldDisplayChild(childNode, threshold)) {
           continue;
         }
         var row =
-            new ProfileCodeTrieNodeTreeRow(profile, root, childNode, tree, this);
+        new ProfileCodeTrieNodeTreeRow(profile, root, childNode, tree, this);
         children.add(row);
       }
     }
-    var row = tr;
 
     var methodCell = tableColumns[0];
     // Enable expansion by clicking anywhere on the method column.
     methodCell.onClick.listen(onClick);
 
+    // Grab the flex-row Div inside the methodCell.
+    methodCell = methodCell.children[0];
+
     // Insert the parent percentage
     var parentPercent = new DivElement();
-    parentPercent.style.position = 'relative';
-    parentPercent.style.display = 'inline';
     parentPercent.text = tipParent;
     methodCell.children.add(parentPercent);
 
+    var gap = new SpanElement();
+    gap.style.minWidth = '1em';
+    methodCell.children.add(gap);
+
     var codeRef = new Element.tag('code-ref');
     codeRef.ref = code;
     methodCell.children.add(codeRef);
 
     var selfCell = tableColumns[1];
     selfCell.style.position = 'relative';
     selfCell.text = tipExclusive;
 
     var tooltipDiv = new DivElement();
     tooltipDiv.classes.add('tooltip');
 
     var memberListDiv = new DivElement();
     memberListDiv.classes.add('memberList');
     tooltipDiv.children.add(memberListDiv);
     _buildTooltip(memberListDiv, {
-      'Kind' : tipKind,
-      'Percent of Parent' : tipParent,
-      'Sample Count' : tipTicks,
-      'Approximate Execution Time': tipTime,
+        'Kind' : tipKind,
+        'Percent of Parent' : tipParent,
+        'Sample Count' : tipTicks,
+        'Approximate Execution Time': tipTime,
     });
     selfCell.children.add(tooltipDiv);
   }
 
   bool hasChildren() {
     return node.children.length > 0;
   }
 }
 
+class ProfileFunctionTrieNodeTreeRow extends TableTreeRow {
+  final CpuProfile profile;
+  @reflectable final FunctionTrieNode root;
+  @reflectable final FunctionTrieNode node;
+  ProfileFunction get profileFunction => node.profileFunction;
+  @reflectable ServiceFunction get function => node.profileFunction.function;
+  @reflectable String tipKind = '';
+  @reflectable String tipParent = '';
+  @reflectable String tipExclusive = '';
+  @reflectable String tipTime = '';
+  @reflectable String tipTicks = '';
+
+  String tipOptimized = '';
+
+  ProfileFunctionTrieNodeTreeRow(this.profile, this.root, this.node,
+                                 TableTree tree,
+                                 ProfileFunctionTrieNodeTreeRow parent)
+      : super(tree, parent) {
+    assert(root != null);
+    assert(node != null);
+    tipTicks = '${node.count}';
+    var seconds = profile.approximateSecondsForCount(node.count);
+    tipTime = Utils.formatTimePrecise(seconds);
+    if (parent == null) {
+      tipParent = Utils.formatPercent(node.count, root.count);
+    } else {
+      tipParent = Utils.formatPercent(node.count, parent.node.count);
+    }
+    if (function.kind == FunctionKind.kTag) {
+      tipExclusive = Utils.formatPercent(node.count, root.count);
+    } else {
+      tipExclusive =
+          Utils.formatPercent(node.profileFunction.exclusiveTicks, root.count);
+    }
+
+    if (function.kind == FunctionKind.kTag) {
+      tipKind = 'Tag (category)';
+    } else if (function.kind == FunctionKind.kCollected) {
+      tipKind = 'Garbage Collected Code';
+    } else {
+      tipKind = '${function.kind} (Function)';
+    }
+  }
+
+  bool hasChildren() {
+    return node.children.length > 0;
+  }
+
+  void _buildTooltip(DivElement memberList, Map<String, String> items) {
+    items.forEach((k, v) {
+      var item = new DivElement();
+      item.classes.add('memberItem');
+      var name = new DivElement();
+      name.classes.add('memberName');
+      name.classes.add('white');
+      name.text = k;
+      var value = new DivElement();
+      value.classes.add('memberValue');
+      value.classes.add('white');
+      value.text = v;
+      item.children.add(name);
+      item.children.add(value);
+      memberList.children.add(item);
+    });
+  }
+
+  void onShow() {
+    super.onShow();
+    if (children.length == 0) {
+      for (var childNode in node.children) {
+        var row = new ProfileFunctionTrieNodeTreeRow(profile,
+                                                     root,
+                                                     childNode, tree, this);
+        children.add(row);
+      }
+    }
+
+    var selfCell = tableColumns[1];
+    selfCell.style.position = 'relative';
+    selfCell.text = tipExclusive;
+
+    var methodCell = tableColumns[0];
+    // Enable expansion by clicking anywhere on the method column.
+    methodCell.onClick.listen(onClick);
+
+    // Grab the flex-row Div inside the methodCell.
+    methodCell = methodCell.children[0];
+
+    // Insert the parent percentage
+    var parentPercent = new DivElement();
+    parentPercent.text = tipParent;
+    methodCell.children.add(parentPercent);
+
+    var gap = new SpanElement();
+    gap.style.minWidth = '1em';
+    methodCell.children.add(gap);
+
+    var functionAndCodeContainer = new DivElement();
+    methodCell.children.add(functionAndCodeContainer);
+
+    var functionRef = new Element.tag('function-ref');
+    functionRef.ref = function;
+    functionAndCodeContainer.children.add(functionRef);
+
+    var codeRow = new DivElement();
+    codeRow.style.paddingTop = '1em';
+    functionAndCodeContainer.children.add(codeRow);
+    if (!function.kind.isSynthetic()) {
+
+      var totalTicks = node.totalCodesTicks;
+      var numCodes = node.codes.length;
+      var label = new SpanElement();
+      label.text = 'Compiled into:\n';
+      codeRow.children.add(label);
+      var curlyBlock = new Element.tag('curly-block');
+      codeRow.children.add(curlyBlock);
+      for (var i = 0; i < numCodes; i++) {
+        var codeRowSpan = new DivElement();
+        codeRowSpan.style.paddingLeft = '1em';
+        curlyBlock.children.add(codeRowSpan);
+        var nodeCode = node.codes[i];
+        var ticks = nodeCode.ticks;
+        var percentage = Utils.formatPercent(ticks, totalTicks);
+        var percentageSpan = new SpanElement();
+        percentageSpan.text = '($percentage) ';
+        codeRowSpan.children.add(percentageSpan);
+        var codeRef = new Element.tag('code-ref');
+        codeRef.ref = nodeCode.code.code;
+        codeRowSpan.children.add(codeRef);
+      }
+    }
+
+    var tooltipDiv = new DivElement();
+    tooltipDiv.classes.add('tooltip');
+
+    var memberListDiv = new DivElement();
+    memberListDiv.classes.add('memberList');
+    tooltipDiv.children.add(memberListDiv);
+    _buildTooltip(memberListDiv, {
+        'Kind' : tipKind,
+        'Percent of Parent' : tipParent,
+        'Sample Count' : tipTicks,
+        'Approximate Execution Time': tipTime,
+    });
+    selfCell.children.add(tooltipDiv);
+  }
+}
+
 /// Displays a CpuProfile
 @CustomTag('cpu-profile')
 class CpuProfileElement extends ObservatoryElement {
-  CpuProfileElement.created() : super.created();
+  static const MICROSECONDS_PER_SECOND = 1000000.0;
+
   @published Isolate isolate;
-
-  @observable ServiceMap profile;
-  @observable bool hideTagsChecked;
   @observable String sampleCount = '';
   @observable String refreshTime = '';
   @observable String sampleRate = '';
-  @observable String sampleDepth = '';
+  @observable String stackDepth = '';
   @observable String displayCutoff = '';
   @observable String timeSpan = '';
-  @reflectable double displayThreshold = 0.0002; // 0.02%.
 
   @observable String tagSelector = 'UserVM';
-
-  final _id = '#tableTree';
-  TableTree tree;
-
-  static const MICROSECONDS_PER_SECOND = 1000000.0;
-
-  void isolateChanged(oldValue) {
-    if (isolate == null) {
-      profile = null;
-      return;
-    }
-    isolate.invokeRpc('getCpuProfile', { 'tags': tagSelector })
-      .then((ServiceObject obj) {
-          print(obj);
-          // Assert we got back the a profile.
-          assert(obj.type == 'CpuProfile');
-          profile = obj;
-          _update();
-      });
-  }
+  @observable String modeSelector = 'Function';
+
+  final CpuProfile profile = new CpuProfile();
+
+  CpuProfileElement.created() : super.created();
 
   @override
   void attached() {
     super.attached();
-    var tableBody = shadowRoot.querySelector('#tableTreeBody');
-    assert(tableBody != null);
-    tree = new TableTree(tableBody, 2);
-    _update();
+  }
+
+  void isolateChanged(oldValue) {
+    _getCpuProfile();
   }
 
   void tagSelectorChanged(oldValue) {
-    isolateChanged(null);
+    _getCpuProfile();
+  }
+
+  void modeSelectorChanged(oldValue) {
+    _updateView();
+  }
+
+  void clear(var done) {
+    _clearCpuProfile().whenComplete(done);
+  }
+
+  Future _clearCpuProfile() {
+    profile.clear();
+    if (isolate == null) {
+      return new Future.value(null);
+    }
+    return isolate.invokeRpc('clearCpuProfile', { })
+        .then((ServiceMap response) {
+          _updateView();
+        });
   }
 
   void refresh(var done) {
-    isolate.invokeRpc('getCpuProfile', { 'tags': tagSelector })
-      .then((ServiceObject obj) {
-          // Assert we got back the a profile.
-          assert(obj.type == 'CpuProfile');
-          profile = obj;
-          _update();
-      }).whenComplete(done);
-  }
-
-  void _update() {
-    if (profile == null) {
-      return;
-    }
-    var totalSamples = profile['samples'];
-    var now = new DateTime.now();
-    sampleCount = totalSamples.toString();
-    refreshTime = now.toString();
-    sampleDepth = profile['depth'].toString();
-    var period = profile['period'];
-    sampleRate = (MICROSECONDS_PER_SECOND / period).toStringAsFixed(0);
-    timeSpan = formatTime(profile['timeSpan']);
-    displayCutoff = '${(displayThreshold * 100.0).toString()}%';
-    profile.isolate.processProfile(profile);
-    profile['threshold'] = displayThreshold;
-    _buildTree();
-  }
-
-  void _buildStackTree() {
-    var root = profile.isolate.profileTrieRoot;
+    _getCpuProfile().whenComplete(done);
+  }
+
+  Future _getCpuProfile() {
+    profile.clear();
+    if (isolate == null) {
+      return new Future.value(null);
+    }
+    return isolate.invokeRpc('getCpuProfile', { 'tags': tagSelector })
+        .then((ServiceMap response) {
+          profile.load(isolate, response);
+          _updateView();
+        });
+  }
+
+  void _updateView() {
+    sampleCount = profile.sampleCount.toString();
+    refreshTime = new DateTime.now().toString();
+    stackDepth = profile.stackDepth.toString();
+    sampleRate = profile.sampleRate.toStringAsFixed(0);
+    timeSpan = formatTime(profile.timeSpan);
+    displayCutoff = '${(profile.displayThreshold * 100.0).toString()}%';
+    if (functionTree != null) {
+      functionTree.clear();
+    }
+    if (codeTree != null) {
+      codeTree.clear();
+    }
+    if (modeSelector == 'Code') {
+      _buildCodeTree();
+    } else {
+      _buildFunctionTree();
+    }
+  }
+
+  TableTree codeTree;
+  TableTree functionTree;
+
+  void _buildFunctionTree() {
+    if (functionTree == null) {
+      var tableBody = shadowRoot.querySelector('#treeBody');
+      assert(tableBody != null);
+      functionTree = new TableTree(tableBody, 2);
+    }
+    var root = profile.functionTrieRoot;
     if (root == null) {
       return;
     }
     try {
-      tree.initialize(
-          new ProfileCodeTrieNodeTreeRow(profile, root, root, tree, null));
+      functionTree.initialize(
+          new ProfileFunctionTrieNodeTreeRow(profile,
+                                             root, root, functionTree, null));
     } catch (e, stackTrace) {
       print(e);
       print(stackTrace);
-      Logger.root.warning('_buildStackTree', e, stackTrace);
+      Logger.root.warning('_buildFunctionTree', e, stackTrace);
     }
     // Check if we only have one node at the root and expand it.
-    if (tree.rows.length == 1) {
-      tree.toggle(tree.rows[0]);
-    }
-    notifyPropertyChange(#tree, null, tree);
-  }
-
-  void _buildTree() {
-    _buildStackTree();
+    if (functionTree.rows.length == 1) {
+      functionTree.toggle(functionTree.rows[0]);
+    }
+  }
+
+  void _buildCodeTree() {
+    if (codeTree == null) {
+      var tableBody = shadowRoot.querySelector('#treeBody');
+      assert(tableBody != null);
+      codeTree = new TableTree(tableBody, 2);
+    }
+    var root = profile.codeTrieRoot;
+    if (root == null) {
+      return;
+    }
+    try {
+      codeTree.initialize(
+          new ProfileCodeTrieNodeTreeRow(profile, root, root, codeTree, null));
+    } catch (e, stackTrace) {
+      print(e);
+      print(stackTrace);
+      Logger.root.warning('_buildCodeTree', e, stackTrace);
+    }
+    // Check if we only have one node at the root and expand it.
+    if (codeTree.rows.length == 1) {
+      codeTree.toggle(codeTree.rows[0]);
+    }
   }
 }