Update reference builds to r89207.

chrome_linux/resources/inspector/HeapSnapshotWorker.js

Index: chrome_linux/resources/inspector/HeapSnapshotWorker.js
===================================================================
--- chrome_linux/resources/inspector/HeapSnapshotWorker.js	(revision 0)
+++ chrome_linux/resources/inspector/HeapSnapshotWorker.js	(revision 0)
@@ -0,0 +1,1511 @@
+
+
+
+WebInspector = {};
+WebInspector.UIString = function(s) { return s; };
+
+
+
+function binarySearch(object, array, comparator)
+{
+var first = 0;
+var last = array.length - 1;
+
+while (first <= last) {
+var mid = (first + last) >> 1;
+var c = comparator(object, array[mid]);
+if (c > 0)
+first = mid + 1;
+else if (c < 0)
+last = mid - 1;
+else
+return mid;
+}
+
+
+return -(first + 1);
+}
+
+Object.defineProperty(Array.prototype, "binaryIndexOf", { value: function(value, comparator)
+{
+var result = binarySearch(value, this, comparator);
+return result >= 0 ? result : -1;
+}});
+
+function insertionIndexForObjectInListSortedByFunction(anObject, aList, aFunction)
+{
+var index = binarySearch(anObject, aList, aFunction);
+if (index < 0)
+
+return -index - 1;
+else {
+
+while (index > 0 && aFunction(anObject, aList[index - 1]) === 0)
+index--;
+return index;        
+}
+}
+;
+
+
+WebInspector.HeapSnapshotLoader = function()
+{
+this._json = "";
+this._state = "find-snapshot-info";
+this._snapshot = {};
+}
+
+WebInspector.HeapSnapshotLoader.prototype = {
+_findBalancedCurlyBrackets: function()
+{
+var counter = 0;
+var openingBracket = "{".charCodeAt(0), closingBracket = "}".charCodeAt(0);
+for (var i = 0, l = this._json.length; i < l; ++i) {
+var character = this._json.charCodeAt(i);
+if (character === openingBracket)
+++counter;
+else if (character === closingBracket) {
+if (--counter === 0)
+return i + 1;
+}
+}
+return -1;
+},
+
+finishLoading: function()
+{
+if (!this._json)
+return null;
+this._parseStringsArray();
+this._json = "";
+var result = new WebInspector.HeapSnapshot(this._snapshot);
+this._json = "";
+this._snapshot = {};
+return result;
+},
+
+_parseNodes: function()
+{
+var index = 0;
+var char0 = "0".charCodeAt(0), char9 = "9".charCodeAt(0), closingBracket = "]".charCodeAt(0);
+var length = this._json.length;
+while (true) {
+while (index < length) {
+var code = this._json.charCodeAt(index);
+if (char0 <= code && code <= char9)
+break;
+else if (code === closingBracket) {
+this._json = this._json.slice(index + 1);
+
+this._snapshot.nodes = this._snapshot.nodes.slice(0);
+return false;
+}
+++index;
+}
+if (index === length) {
+this._json = "";
+return true;
+}
+var startIndex = index;
+while (index < length) {
+var code = this._json.charCodeAt(index);
+if (char0 > code || code > char9)
+break;
+++index;
+}
+if (index === length) {
+this._json = this._json.slice(startIndex);
+return true;
+}
+this._snapshot.nodes.push(parseInt(this._json.slice(startIndex, index)));
+}
+},
+
+_parseStringsArray: function()
+{
+var closingBracketIndex = this._json.lastIndexOf("]");
+if (closingBracketIndex === -1)
+throw new Error("Incomplete JSON");
+this._json = this._json.slice(0, closingBracketIndex + 1);
+this._snapshot.strings = JSON.parse(this._json);
+},
+
+pushJSONChunk: function(chunk)
+{
+this._json += chunk;
+switch (this._state) {
+case "find-snapshot-info": {
+var snapshotToken = "\"snapshot\"";
+var snapshotTokenIndex = this._json.indexOf(snapshotToken);
+if (snapshotTokenIndex === -1)
+throw new Error("Snapshot token not found");
+this._json = this._json.slice(snapshotTokenIndex + snapshotToken.length + 1);
+this._state = "parse-snapshot-info";
+this.pushJSONChunk("");
+break;
+}
+case "parse-snapshot-info": {
+var closingBracketIndex = this._findBalancedCurlyBrackets();
+if (closingBracketIndex === -1)
+return;
+this._snapshot.snapshot = JSON.parse(this._json.slice(0, closingBracketIndex));
+this._json = this._json.slice(closingBracketIndex);
+this._state = "find-nodes";
+this.pushJSONChunk("");
+break;
+}
+case "find-nodes": {
+var nodesToken = "\"nodes\"";
+var nodesTokenIndex = this._json.indexOf(nodesToken);
+if (nodesTokenIndex === -1)
+return;
+var bracketIndex = this._json.indexOf("[", nodesTokenIndex);
+if (bracketIndex === -1)
+return;
+this._json = this._json.slice(bracketIndex + 1);
+this._state = "parse-nodes-meta-info";
+this.pushJSONChunk("");
+break;
+}
+case "parse-nodes-meta-info": {
+var closingBracketIndex = this._findBalancedCurlyBrackets();
+if (closingBracketIndex === -1)
+return;
+this._snapshot.nodes = [JSON.parse(this._json.slice(0, closingBracketIndex))];
+this._json = this._json.slice(closingBracketIndex);
+this._state = "parse-nodes";
+this.pushJSONChunk("");
+break;          
+}
+case "parse-nodes": {
+if (this._parseNodes())
+return;
+this._state = "find-strings";
+this.pushJSONChunk("");
+break;
+}
+case "find-strings": {
+var stringsToken = "\"strings\"";
+var stringsTokenIndex = this._json.indexOf(stringsToken);
+if (stringsTokenIndex === -1)
+return;
+var bracketIndex = this._json.indexOf("[", stringsTokenIndex);
+if (bracketIndex === -1)
+return;
+this._json = this._json.slice(bracketIndex);
+this._state = "accumulate-strings";
+break;
+}
+case "accumulate-strings":
+break;
+}
+}
+};
+
+WebInspector.HeapSnapshotArraySlice = function(snapshot, arrayName, start, end)
+{
+
+
+this._snapshot = snapshot;
+this._arrayName = arrayName;
+this._start = start;
+this.length = end - start;
+}
+
+WebInspector.HeapSnapshotArraySlice.prototype = {
+item: function(index)
+{
+return this._snapshot[this._arrayName][this._start + index];
+}
+}
+
+WebInspector.HeapSnapshotEdge = function(snapshot, edges, edgeIndex)
+{
+this._snapshot = snapshot;
+this._edges = edges;
+this.edgeIndex = edgeIndex || 0;
+}
+
+WebInspector.HeapSnapshotEdge.prototype = {
+clone: function()
+{
+return new WebInspector.HeapSnapshotEdge(this._snapshot, this._edges, this.edgeIndex);
+},
+
+get hasStringName()
+{
+if (!this.isShortcut)
+return this._hasStringName;
+return isNaN(parseInt(this._name, 10));
+},
+
+get isElement()
+{
+return this._type() === this._snapshot._edgeElementType;
+},
+
+get isHidden()
+{
+return this._type() === this._snapshot._edgeHiddenType;
+},
+
+get isInternal()
+{
+return this._type() === this._snapshot._edgeInternalType;
+},
+
+get isInvisible()
+{
+return this._type() === this._snapshot._edgeInvisibleType;
+},
+
+get isShortcut()
+{
+return this._type() === this._snapshot._edgeShortcutType;
+},
+
+get name()
+{
+if (!this.isShortcut)
+return this._name;
+var numName = parseInt(this._name, 10);
+return isNaN(numName) ? this._name : numName;
+},
+
+get node()
+{
+return new WebInspector.HeapSnapshotNode(this._snapshot, this.nodeIndex);
+},
+
+get nodeIndex()
+{
+return this._edges.item(this.edgeIndex + this._snapshot._edgeToNodeOffset);
+},
+
+get rawEdges()
+{
+return this._edges;
+},
+
+toString: function()
+{
+switch (this.type) {
+case "context": return "->" + this.name;
+case "element": return "[" + this.name + "]";
+case "property":
+return this.name.indexOf(" ") === -1 ? "." + this.name : "[\"" + this.name + "\"]";
+case "shortcut":
+var name = this.name;
+if (typeof name === "string")
+return this.name.indexOf(" ") === -1 ? "." + this.name : "[\"" + this.name + "\"]";
+else
+return "[" + this.name + "]";
+case "internal":
+case "hidden":
+case "invisible":
+return "{" + this.name + "}";
+};
+return "?" + this.name + "?";
+},
+
+get type()
+{
+return this._snapshot._edgeTypes[this._type()];
+},
+
+get _hasStringName()
+{
+return !this.isElement && !this.isHidden;
+},
+
+get _name()
+{
+return this._hasStringName ? this._snapshot._strings[this._nameOrIndex] : this._nameOrIndex;
+},
+
+get _nameOrIndex()
+{
+return this._edges.item(this.edgeIndex + this._snapshot._edgeNameOffset);
+},
+
+_type: function()
+{
+return this._edges.item(this.edgeIndex + this._snapshot._edgeTypeOffset);
+}
+};
+
+WebInspector.HeapSnapshotEdgeIterator = function(edge)
+{
+this.edge = edge;
+}
+
+WebInspector.HeapSnapshotEdgeIterator.prototype = {
+first: function()
+{
+this.edge.edgeIndex = 0;
+},
+
+hasNext: function()
+{
+return this.edge.edgeIndex < this.edge._edges.length;
+},
+
+get index()
+{
+return this.edge.edgeIndex;
+},
+
+set index(newIndex)
+{
+this.edge.edgeIndex = newIndex;
+},
+
+get item()
+{
+return this.edge;
+},
+
+next: function()
+{
+this.edge.edgeIndex += this.edge._snapshot._edgeFieldsCount;
+}
+};
+
+WebInspector.HeapSnapshotRetainerEdge = function(snapshot, retainers, retainerIndex)
+{
+this._snapshot = snapshot;
+this._retainers = retainers;
+this.retainerIndex = retainerIndex || 0;
+}
+
+WebInspector.HeapSnapshotRetainerEdge.prototype = {
+clone: function()
+{
+return new WebInspector.HeapSnapshotRetainerEdge(this._snapshot, this._retainers, this.retainerIndex);
+},
+
+get hasStringName()
+{
+return this._edge.hasStringName;
+},
+
+get isElement()
+{
+return this._edge.isElement;
+},
+
+get isHidden()
+{
+return this._edge.isHidden;
+},
+
+get isInternal()
+{
+return this._edge.isInternal;
+},
+
+get isInvisible()
+{
+return this._edge.isInvisible;
+},
+
+get isShortcut()
+{
+return this._edge.isShortcut;
+},
+
+get name()
+{
+return this._edge.name;
+},
+
+get node()
+{
+return this._node;
+},
+
+get nodeIndex()
+{
+return this._nodeIndex;
+},
+
+get retainerIndex()
+{
+return this._retainerIndex;
+},
+
+set retainerIndex(newIndex)
+{
+if (newIndex !== this._retainerIndex) {
+this._retainerIndex = newIndex;
+this._setupEdge();
+}
+},
+
+_setupEdge: function()
+{
+var globalEdgeIndex = this._retainers.item(this._retainerIndex);
+this._nodeIndex = this._snapshot._findNearestNodeIndex(globalEdgeIndex);
+this._node = new WebInspector.HeapSnapshotNode(this._snapshot, this._nodeIndex);
+var edgeIndex = globalEdgeIndex - this._nodeIndex - this._snapshot._firstEdgeOffset;
+this._edge = new WebInspector.HeapSnapshotEdge(this._snapshot, this._node.rawEdges, edgeIndex);
+},
+
+toString: function()
+{
+return this._edge.toString();
+},
+
+get type()
+{
+return this._edge.type;
+}
+}
+
+WebInspector.HeapSnapshotRetainerEdgeIterator = function(retainer)
+{
+this.retainer = retainer;
+}
+
+WebInspector.HeapSnapshotRetainerEdgeIterator.prototype = {
+first: function()
+{
+this.retainer.retainerIndex = 0;
+},
+
+hasNext: function()
+{
+return this.retainer.retainerIndex < this.retainer._retainers.length;
+},
+
+get index()
+{
+return this.retainer.retainerIndex;
+},
+
+set index(newIndex)
+{
+this.retainer.retainerIndex = newIndex;
+},
+
+get item()
+{
+return this.retainer;
+},
+
+next: function()
+{
+++this.retainer.retainerIndex;
+}
+};
+
+WebInspector.HeapSnapshotNode = function(snapshot, nodeIndex)
+{
+this._snapshot = snapshot;
+this._firstNodeIndex = nodeIndex;
+this.nodeIndex = nodeIndex;
+}
+
+WebInspector.HeapSnapshotNode.prototype = {
+get className()
+{
+switch (this.type) {
+case "hidden":
+return WebInspector.UIString("(system)");
+case "object": {
+var commentPos = this.name.indexOf("/");
+return commentPos !== -1 ? this.name.substring(0, commentPos).trimRight() : this.name;
+}
+case "native": {
+var entitiesCountPos = this.name.indexOf("/");
+return entitiesCountPos !== -1 ? this.name.substring(0, entitiesCountPos).trimRight() : this.name;
+}
+case "code":
+return WebInspector.UIString("(compiled code)");
+default:
+return "(" + this.type + ")";
+}
+},
+
+get dominatorIndex()
+{
+return this._nodes[this.nodeIndex + this._snapshot._dominatorOffset];
+},
+
+get edges()
+{
+return new WebInspector.HeapSnapshotEdgeIterator(new WebInspector.HeapSnapshotEdge(this._snapshot, this.rawEdges));
+},
+
+get edgesCount()
+{
+return this._nodes[this.nodeIndex + this._snapshot._edgesCountOffset];
+},
+
+get id()
+{
+return this._nodes[this.nodeIndex + this._snapshot._nodeIdOffset];
+},
+
+get instancesCount()
+{
+return this._nodes[this.nodeIndex + this._snapshot._nodeInstancesCountOffset];
+},
+
+get isHidden()
+{
+return this._type() === this._snapshot._nodeHiddenType;
+},
+
+get isRoot()
+{
+return this.nodeIndex === this._snapshot._rootNodeIndex;
+},
+
+get name()
+{
+return this._snapshot._strings[this._name()];
+},
+
+get rawEdges()
+{
+var firstEdgeIndex = this._firstEdgeIndex();
+return new WebInspector.HeapSnapshotArraySlice(this._snapshot, "_nodes", firstEdgeIndex, firstEdgeIndex + this.edgesCount * this._snapshot._edgeFieldsCount);
+},
+
+get retainedSize()
+{
+return this._nodes[this.nodeIndex + this._snapshot._nodeRetainedSizeOffset];
+},
+
+get retainers()
+{
+return new WebInspector.HeapSnapshotRetainerEdgeIterator(new WebInspector.HeapSnapshotRetainerEdge(this._snapshot, this._snapshot._retainersForNode(this)));
+},
+
+get selfSize()
+{
+return this._nodes[this.nodeIndex + this._snapshot._nodeSelfSizeOffset];
+},
+
+get type()
+{
+return this._snapshot._nodeTypes[this._type()];
+},
+
+_name: function()
+{
+return this._nodes[this.nodeIndex + this._snapshot._nodeNameOffset];
+},
+
+get _nodes()
+{
+return this._snapshot._nodes;
+},
+
+_firstEdgeIndex: function()
+{
+return this.nodeIndex + this._snapshot._firstEdgeOffset;
+},
+
+get _nextNodeIndex()
+{
+return this._firstEdgeIndex() + this.edgesCount * this._snapshot._edgeFieldsCount;
+},
+
+_type: function()
+{
+return this._nodes[this.nodeIndex + this._snapshot._nodeTypeOffset];
+}
+};
+
+WebInspector.HeapSnapshotNodeIterator = function(node)
+{
+this.node = node;
+}
+
+WebInspector.HeapSnapshotNodeIterator.prototype = {
+first: function()
+{
+this.node.nodeIndex = this.node._firstNodeIndex;
+},
+
+hasNext: function()
+{
+return this.node.nodeIndex < this.node._nodes.length;
+},
+
+get index()
+{
+return this.node.nodeIndex;
+},
+
+set index(newIndex)
+{
+this.node.nodeIndex = newIndex;
+},
+
+get item()
+{
+return this.node;
+},
+
+next: function()
+{
+this.node.nodeIndex = this.node._nextNodeIndex;
+}
+}
+
+WebInspector.HeapSnapshot = function(profile)
+{
+this.uid = profile.snapshot.uid;
+this._nodes = profile.nodes;
+this._strings = profile.strings;
+
+this._init();
+}
+
+WebInspector.HeapSnapshot.prototype = {
+_init: function()
+{
+this._metaNodeIndex = 0;
+this._rootNodeIndex = 1;
+var meta = this._nodes[this._metaNodeIndex];
+this._nodeTypeOffset = meta.fields.indexOf("type");
+this._nodeNameOffset = meta.fields.indexOf("name");
+this._nodeIdOffset = meta.fields.indexOf("id");
+this._nodeInstancesCountOffset = this._nodeIdOffset;
+this._nodeSelfSizeOffset = meta.fields.indexOf("self_size");
+this._nodeRetainedSizeOffset = meta.fields.indexOf("retained_size");
+this._dominatorOffset = meta.fields.indexOf("dominator");
+this._edgesCountOffset = meta.fields.indexOf("children_count");
+this._firstEdgeOffset = meta.fields.indexOf("children");
+this._nodeTypes = meta.types[this._nodeTypeOffset];
+this._nodeHiddenType = this._nodeTypes.indexOf("hidden");
+var edgesMeta = meta.types[this._firstEdgeOffset];
+this._edgeFieldsCount = edgesMeta.fields.length;
+this._edgeTypeOffset = edgesMeta.fields.indexOf("type");
+this._edgeNameOffset = edgesMeta.fields.indexOf("name_or_index");
+this._edgeToNodeOffset = edgesMeta.fields.indexOf("to_node");
+this._edgeTypes = edgesMeta.types[this._edgeTypeOffset];
+this._edgeElementType = this._edgeTypes.indexOf("element");
+this._edgeHiddenType = this._edgeTypes.indexOf("hidden");
+this._edgeInternalType = this._edgeTypes.indexOf("internal");
+this._edgeShortcutType = this._edgeTypes.indexOf("shortcut");
+this._edgeInvisibleType = this._edgeTypes.length;
+this._edgeTypes.push("invisible");
+
+this._markInvisibleEdges();
+},
+
+dispose: function()
+{
+delete this._nodes;
+delete this._strings;
+delete this._retainers;
+delete this._retainerIndex;
+delete this._nodeIndex;
+if (this._aggregates) {
+delete this._aggregates;
+this._aggregatesIndexesSorted = false;
+}
+delete this._baseNodeIds;
+},
+
+get _allNodes()
+{
+return new WebInspector.HeapSnapshotNodeIterator(this.rootNode);
+},
+
+get nodeCount()
+{
+if (this._nodeCount)
+return this._nodeCount;
+
+this._nodeCount = 0;
+for (var iter = this._allNodes; iter.hasNext(); iter.next())
+++this._nodeCount;
+return this._nodeCount;
+},
+
+nodeFieldValuesByIndex: function(fieldName, indexes)
+{
+var node = new WebInspector.HeapSnapshotNode(this);
+var result = new Array(indexes.length);
+for (var i = 0, l = indexes.length; i < l; ++i) {
+node.nodeIndex = indexes[i];
+result[i] = node[fieldName];
+}
+return result;
+},
+
+get rootNode()
+{
+return new WebInspector.HeapSnapshotNode(this, this._rootNodeIndex);
+},
+
+get rootNodeIndex()
+{
+return this._rootNodeIndex;
+},
+
+get totalSize()
+{
+return this.rootNode.retainedSize;
+},
+
+_retainersForNode: function(node)
+{
+if (!this._retainers)
+this._buildRetainers();
+
+var retIndexFrom = this._getRetainerIndex(node.nodeIndex);
+var retIndexTo = this._getRetainerIndex(node._nextNodeIndex);
+return new WebInspector.HeapSnapshotArraySlice(this, "_retainers", retIndexFrom, retIndexTo);
+},
+
+aggregates: function(sortedIndexes)
+{
+if (!this._aggregates)
+this._buildAggregates();
+if (sortedIndexes && !this._aggregatesIndexesSorted)
+this._sortAggregateIndexes();
+return this._aggregates;
+},
+
+_buildRetainers: function()
+{
+if (!this._nodeIndex)
+this._buildNodeIndex();
+
+this._retainerIndex = new Array(this._nodeIndex.length);
+for (var i = 0, l = this._retainerIndex.length; i < l; ++i)
+this._retainerIndex[i] = 0;
+for (var nodesIter = this._allNodes; nodesIter.hasNext(); nodesIter.next()) {
+var node = nodesIter.node;
+for (var edgesIter = node.edges; edgesIter.hasNext(); edgesIter.next()) {
+var edge = edgesIter.edge;
+var nodeIndex = edge.nodeIndex;
+var position = this._findNodePositionInIndex(nodeIndex);
+++this._retainerIndex[position];
+}
+}
+var retainerCount = 0;
+for (i = 0, l = this._retainerIndex.length; i < l; ++i)
+retainerCount += this._retainerIndex[i];
+this._retainers = new Array(retainerCount + 1);
+var retainerPosition = 0;
+for (i = 0, l = this._retainerIndex.length; i < l; ++i) {
+retainerCount = this._retainers[retainerPosition] = this._retainerIndex[i];
+this._retainerIndex[i] = retainerPosition;
+retainerPosition += retainerCount;
+}
+for (nodesIter = this._allNodes; nodesIter.hasNext(); nodesIter.next()) {
+var node = nodesIter.node;
+for (var edgesIter = node.edges; edgesIter.hasNext(); edgesIter.next()) {
+var edge = edgesIter.edge;
+var nodeIndex = edge.nodeIndex;
+var retIndex = this._getRetainerIndex(nodeIndex);
+var idx = retIndex + (--this._retainers[retIndex]);
+this._retainers[idx] = node.nodeIndex + this._firstEdgeOffset + edge.edgeIndex;
+}
+}
+},
+
+_buildAggregates: function()
+{
+this._aggregates = {};
+for (var iter = this._allNodes; iter.hasNext(); iter.next()) {
+var node = iter.node;
+var className = node.className;
+var nameMatters = node.type === "object" || node.type === "native";
+if (node.type !== "native" && node.selfSize === 0)
+continue;
+if (!(className in this._aggregates))
+this._aggregates[className] = { count: 0, self: 0, maxRet: 0, type: node.type, name: nameMatters ? node.name : null, idxs: [] };
+var clss = this._aggregates[className];
+++clss.count;
+clss.self += node.selfSize;
+if (node.retainedSize > clss.maxRet)
+clss.maxRet = node.retainedSize;
+clss.idxs.push(node.nodeIndex);
+}
+
+for (var className in this._aggregates)
+this._aggregates[className].idxs = this._aggregates[className].idxs.slice(0);
+},
+
+_sortAggregateIndexes: function()
+{
+var nodeA = new WebInspector.HeapSnapshotNode(this);
+var nodeB = new WebInspector.HeapSnapshotNode(this);
+for (var clss in this._aggregates)
+this._aggregates[clss].idxs.sort(
+function(idxA, idxB) {
+nodeA.nodeIndex = idxA;
+nodeB.nodeIndex = idxB;
+return nodeA.id < nodeB.id ? -1 : 1;
+});
+
+this._aggregatesIndexesSorted = true;
+},
+
+_buildNodeIndex: function()
+{
+var count = 0;
+for (var nodesIter = this._allNodes; nodesIter.hasNext(); nodesIter.next(), ++count);
+this._nodeIndex = new Array(count + 1);
+count = 0;
+for (nodesIter = this._allNodes; nodesIter.hasNext(); nodesIter.next(), ++count)
+this._nodeIndex[count] = nodesIter.index;
+this._nodeIndex[count] = this._nodes.length;
+},
+
+_findNodePositionInIndex: function(index)
+{
+return binarySearch(index, this._nodeIndex, this._numbersComparator);
+},
+
+_findNearestNodeIndex: function(index)
+{
+var result = this._findNodePositionInIndex(index);
+if (result < 0) {
+result = -result - 1;
+nodeIndex = this._nodeIndex[result];
+
+if (nodeIndex > index)
+nodeIndex = this._nodeIndex[result - 1];
+} else
+var nodeIndex = this._nodeIndex[result];
+return nodeIndex;
+},
+
+_getRetainerIndex: function(nodeIndex)
+{
+var nodePosition = this._findNodePositionInIndex(nodeIndex);
+return this._retainerIndex[nodePosition];
+},
+
+_markInvisibleEdges: function()
+{
+
+
+
+for (var iter = this.rootNode.edges; iter.hasNext(); iter.next()) {
+var edge = iter.edge;
+if (!edge.isShortcut)
+continue;
+var node = edge.node;
+var propNames = {};
+for (var innerIter = node.edges; innerIter.hasNext(); innerIter.next()) {
+var globalObjEdge = innerIter.edge;
+if (globalObjEdge.isShortcut)
+propNames[globalObjEdge._nameOrIndex] = true;
+}
+for (innerIter.first(); innerIter.hasNext(); innerIter.next()) {
+var globalObjEdge = innerIter.edge;
+if (!globalObjEdge.isShortcut
+&& globalObjEdge.node.isHidden
+&& globalObjEdge._hasStringName
+&& (globalObjEdge._nameOrIndex in propNames))
+this._nodes[globalObjEdge._edges._start + globalObjEdge.edgeIndex + this._edgeTypeOffset] = this._edgeInvisibleType;
+}
+}
+},
+
+_numbersComparator: function(a, b)
+{
+return a < b ? -1 : (a > b ? 1 : 0);
+},
+
+baseSnapshotHasNode: function(baseSnapshotId, className, nodeId)
+{
+return this._baseNodeIds[baseSnapshotId][className].binaryIndexOf(nodeId, this._numbersComparator) !== -1;
+},
+
+pushBaseIds: function(baseSnapshotId, className, nodeIds)
+{
+if (!this._baseNodeIds)
+this._baseNodeIds = [];
+if (!this._baseNodeIds[baseSnapshotId])
+this._baseNodeIds[baseSnapshotId] = {};
+this._baseNodeIds[baseSnapshotId][className] = nodeIds;
+},
+
+createDiff: function(className)
+{
+return new WebInspector.HeapSnapshotsDiff(this, className);
+},
+
+_parseFilter: function(filter)
+{
+if (!filter)
+return null;
+var parsedFilter = eval("(function(){return " + filter + "})()");
+return parsedFilter.bind(this);
+},
+
+createEdgesProvider: function(nodeIndex, filter)
+{
+return new WebInspector.HeapSnapshotEdgesProvider(this, nodeIndex, this._parseFilter(filter));
+},
+
+createNodesProvider: function(filter)
+{
+return new WebInspector.HeapSnapshotNodesProvider(this, this._parseFilter(filter));
+},
+
+createNodesProviderForClass: function(className)
+{
+return new WebInspector.HeapSnapshotNodesProvider(this, null, className);
+},
+
+createPathFinder: function(targetNodeIndex, skipHidden)
+{
+return new WebInspector.HeapSnapshotPathFinder(this, targetNodeIndex, skipHidden);
+},
+
+updateStaticData: function()
+{
+return {nodeCount: this.nodeCount, rootNodeIndex: this._rootNodeIndex, totalSize: this.totalSize, uid: this.uid};
+}
+};
+
+WebInspector.HeapSnapshotFilteredOrderedIterator = function(iterator, filter, iterationOrder)
+{
+this._filter = filter;
+this._iterator = iterator;
+this._iterationOrder = iterationOrder ? iterationOrder.slice(0) : null;
+this._position = 0;
+this._lastComparator = null;
+}
+
+WebInspector.HeapSnapshotFilteredOrderedIterator.prototype = {
+_createIterationOrder: function()
+{
+this._iterationOrder = [];
+var iterator = this._iterator;
+if (!this._filter) {
+for (iterator.first(); iterator.hasNext(); iterator.next())
+this._iterationOrder.push(iterator.index);
+} else {
+for (iterator.first(); iterator.hasNext(); iterator.next()) {
+if (this._filter(iterator.item))
+this._iterationOrder.push(iterator.index);
+}
+}
+},
+
+first: function()
+{
+this._position = 0;
+},
+
+hasNext: function()
+{
+return this._position < this._iterationOrder.length;
+},
+
+get isEmpty()
+{
+if (this._iterationOrder)
+return !this._iterationOrder.length;
+var iterator = this._iterator;
+if (!this._filter) {
+iterator.first();
+return !iterator.hasNext();
+}
+for (iterator.first(); iterator.hasNext(); iterator.next())
+if (this._filter(iterator.item)) return false;
+return true;
+},
+
+get item()
+{
+this._iterator.index = this._iterationOrder[this._position];
+return this._iterator.item;
+},
+
+get length()
+{
+if (!this._iterationOrder)
+this._createIterationOrder();
+return this._iterationOrder.length;
+},
+
+next: function()
+{
+++this._position;
+},
+
+serializeNextItems: function(count)
+{
+var result = new Array(count);
+for (var i = 0 ; i < count && this.hasNext(); ++i, this.next())
+result[i] = this._serialize(this.item);
+result.length = i;
+result.hasNext = this.hasNext();
+result.totalLength = this.length;
+return result;
+},
+
+sortAndRewind: function(comparator)
+{
+var result = this.sort(comparator);
+if (result)
+this.first();
+return result;
+}
+}
+
+WebInspector.HeapSnapshotFilteredOrderedIterator.prototype.createComparator = function(fieldNames)
+{
+return {fieldName1:fieldNames[0], ascending1:fieldNames[1], fieldName2:fieldNames[2], ascending2:fieldNames[3]};
+}
+
+WebInspector.HeapSnapshotEdgesProvider = function(snapshot, nodeIndex, filter)
+{
+this.snapshot = snapshot;
+var node = new WebInspector.HeapSnapshotNode(snapshot, nodeIndex);
+WebInspector.HeapSnapshotFilteredOrderedIterator.call(this, new WebInspector.HeapSnapshotEdgeIterator(new WebInspector.HeapSnapshotEdge(snapshot, node.rawEdges)), filter);
+}
+
+WebInspector.HeapSnapshotEdgesProvider.prototype = {
+_serialize: function(edge)
+{
+return {name: edge.name, node: WebInspector.HeapSnapshotNodesProvider.prototype._serialize(edge.node), nodeIndex: edge.nodeIndex, type: edge.type};
+},
+
+sort: function(comparator)
+{
+if (this._lastComparator === comparator)
+return false;
+this._lastComparator = comparator;
+var fieldName1 = comparator.fieldName1;
+var fieldName2 = comparator.fieldName2;
+var ascending1 = comparator.ascending1;
+var ascending2 = comparator.ascending2;
+
+var edgeA = this._iterator.item.clone();
+var edgeB = edgeA.clone();
+var nodeA = new WebInspector.HeapSnapshotNode(this.snapshot);
+var nodeB = new WebInspector.HeapSnapshotNode(this.snapshot);
+
+function sortByEdgeFieldName(ascending, indexA, indexB)
+{
+edgeA.edgeIndex = indexA;
+edgeB.edgeIndex = indexB;
+if (edgeB.name === "__proto__") return -1;
+if (edgeA.name === "__proto__") return 1;
+var result =
+edgeA.hasStringName === edgeB.hasStringName ?
+(edgeA.name < edgeB.name ? -1 : (edgeA.name > edgeB.name ? 1 : 0)) :
+(edgeA.hasStringName ? -1 : 1);
+return ascending ? result : -result;
+}
+
+function sortByNodeField(fieldName, ascending, indexA, indexB)
+{
+edgeA.edgeIndex = indexA;
+edgeB.edgeIndex = indexB;
+nodeA.nodeIndex = edgeA.nodeIndex;
+nodeB.nodeIndex = edgeB.nodeIndex;
+var valueA = nodeA[fieldName];
+var valueB = nodeB[fieldName];
+var result = valueA < valueB ? -1 : (valueA > valueB ? 1 : 0);
+return ascending ? result : -result;
+}
+
+if (!this._iterationOrder)
+this._createIterationOrder();
+
+function sortByEdgeAndNode(indexA, indexB) {
+var result = sortByEdgeFieldName(ascending1, indexA, indexB);
+if (result === 0)
+result = sortByNodeField(fieldName2, ascending2, indexA, indexB);
+return result;
+}
+
+function sortByNodeAndEdge(indexA, indexB) {
+var result = sortByNodeField(fieldName1, ascending1, indexA, indexB);
+if (result === 0)
+result = sortByEdgeFieldName(ascending2, indexA, indexB);
+return result;
+}
+
+function sortByNodeAndNode(indexA, indexB) {
+var result = sortByNodeField(fieldName1, ascending1, indexA, indexB);
+if (result === 0)
+result = sortByNodeField(fieldName2, ascending2, indexA, indexB);
+return result;
+}
+
+if (fieldName1 === "!edgeName")
+this._iterationOrder.sort(sortByEdgeAndNode);
+else if (fieldName2 === "!edgeName")
+this._iterationOrder.sort(sortByNodeAndEdge);
+else
+this._iterationOrder.sort(sortByNodeAndNode);
+return true;
+}
+};
+
+WebInspector.HeapSnapshotEdgesProvider.prototype.__proto__ = WebInspector.HeapSnapshotFilteredOrderedIterator.prototype;
+
+WebInspector.HeapSnapshotNodesProvider = function(snapshot, filter, className)
+{
+this.snapshot = snapshot;
+if (!className)
+WebInspector.HeapSnapshotFilteredOrderedIterator.call(this, snapshot._allNodes, filter);
+else
+WebInspector.HeapSnapshotFilteredOrderedIterator.call(this, snapshot._allNodes, null, snapshot.aggregates(false)[className].idxs);
+}
+
+WebInspector.HeapSnapshotNodesProvider.prototype = {
+_serialize: function(node)
+{
+return {id: node.id, name: node.name, nodeIndex: node.nodeIndex, retainedSize: node.retainedSize, selfSize: node.selfSize, type: node.type};
+},
+
+sort: function(comparator)
+{
+if (this._lastComparator === comparator)
+return false;
+this._lastComparator = comparator;
+var fieldName1 = comparator.fieldName1;
+var fieldName2 = comparator.fieldName2;
+var ascending1 = comparator.ascending1;
+var ascending2 = comparator.ascending2;
+
+var nodeA = new WebInspector.HeapSnapshotNode(this.snapshot);
+var nodeB = new WebInspector.HeapSnapshotNode(this.snapshot);
+
+function sortByNodeField(fieldName, ascending, indexA, indexB)
+{
+nodeA.nodeIndex = indexA;
+nodeB.nodeIndex = indexB;
+var valueA = nodeA[fieldName];
+var valueB = nodeB[fieldName];
+var result = valueA < valueB ? -1 : (valueA > valueB ? 1 : 0);
+return ascending ? result : -result;
+}
+
+if (!this._iterationOrder)
+this._createIterationOrder();
+
+function sortByComparator(indexA, indexB) {
+var result = sortByNodeField(fieldName1, ascending1, indexA, indexB);
+if (result === 0)
+result = sortByNodeField(fieldName2, ascending2, indexA, indexB);
+return result;
+}
+
+this._iterationOrder.sort(sortByComparator);
+return true;
+}
+};
+
+WebInspector.HeapSnapshotNodesProvider.prototype.__proto__ = WebInspector.HeapSnapshotFilteredOrderedIterator.prototype;
+
+WebInspector.HeapSnapshotPathFinder = function(snapshot, targetNodeIndex, skipHidden)
+{
+this._snapshot = snapshot;
+this._maxLength = 1;
+this._lengthLimit = 15;
+this._targetNodeIndex = targetNodeIndex;
+this._currentPath = null;
+this._skipHidden = skipHidden;
+this._rootChildren = this._fillRootChildren();
+}
+
+WebInspector.HeapSnapshotPathFinder.prototype = {
+findNext: function()
+{
+for (var i = 0; i < 100000; ++i) {
+if (!this._buildNextPath()) {
+if (++this._maxLength >= this._lengthLimit)
+return null;
+this._currentPath = null;
+if (!this._buildNextPath())
+return null;
+}
+if (this._isPathFound())
+return {path:this._pathToString(this._currentPath), route:this._pathToRoute(this._currentPath), len:this._currentPath.length};
+}
+
+return false;
+},
+
+updateRoots: function(filter)
+{
+if (filter)
+filter = eval("(function(){return " + filter + "})()");
+this._rootChildren = this._fillRootChildren(filter);  
+this._reset();
+},
+
+_reset: function()
+{
+this._maxLength = 1;
+this._currentPath = null;
+},
+
+_fillRootChildren: function(filter)
+{
+var result = [];
+for (var iter = this._snapshot.rootNode.edges; iter.hasNext(); iter.next()) {
+if (!filter || filter(iter.edge.node))
+result[iter.edge.nodeIndex] = true;
+}
+return result;
+},
+
+_appendToCurrentPath: function(iter)
+{
+this._currentPath._cache[this._lastEdge.nodeIndex] = true;
+this._currentPath.push(iter);
+},
+
+_removeLastFromCurrentPath: function()
+{
+this._currentPath.pop();
+delete this._currentPath._cache[this._lastEdge.nodeIndex];
+},
+
+_hasInPath: function(nodeIndex)
+{
+return this._targetNodeIndex === nodeIndex
+|| !!this._currentPath._cache[nodeIndex];
+},
+
+_isPathFound: function()
+{
+return this._currentPath.length === this._maxLength
+&& this._lastEdge.nodeIndex in this._rootChildren;
+},
+
+get _lastEdgeIter()
+{
+return this._currentPath[this._currentPath.length - 1];
+},
+
+get _lastEdge()
+{
+return this._lastEdgeIter.item;
+},
+
+_skipEdge: function(edge)
+{
+return edge.isInvisible
+|| (this._skipHidden && (edge.isHidden || edge.node.isHidden))
+|| this._hasInPath(edge.nodeIndex);
+},
+
+_nextEdgeIter: function()
+{
+var iter = this._lastEdgeIter;
+while (iter.hasNext() && this._skipEdge(iter.item))
+iter.next();
+return iter;
+},
+
+_buildNextPath: function()
+{
+if (this._currentPath !== null) {
+var iter = this._lastEdgeIter;
+while (true) {
+iter.next();
+iter = this._nextEdgeIter();
+if (iter.hasNext())
+return true;
+while (true) {
+if (this._currentPath.length > 1) {
+this._removeLastFromCurrentPath();
+iter = this._lastEdgeIter;
+iter.next();
+iter = this._nextEdgeIter();
+if (iter.hasNext()) {
+while (this._currentPath.length < this._maxLength) {
+iter = this._nextEdgeIter();
+if (iter.hasNext())
+this._appendToCurrentPath(iter.item.node.retainers);
+else
+return true;
+}
+return true;
+}
+} else
+return false;
+}
+}
+} else {
+var node = new WebInspector.HeapSnapshotNode(this._snapshot, this._targetNodeIndex);
+this._currentPath = [node.retainers];
+this._currentPath._cache = {};
+while (this._currentPath.length < this._maxLength) {
+var iter = this._nextEdgeIter();
+if (iter.hasNext())
+this._appendToCurrentPath(iter.item.node.retainers);
+else
+break;
+}
+return true;
+}
+},
+
+_nodeToString: function(node)
+{
+if (node.id === 1)
+return node.name;
+else
+return node.name + "@" + node.id;
+},
+
+_pathToString: function(path)
+{
+if (!path)
+return "";
+var sPath = [];
+for (var j = 0; j < path.length; ++j)
+sPath.push(path[j].item.toString());
+sPath.push(this._nodeToString(path[path.length - 1].item.node));
+sPath.reverse();
+return sPath.join("");
+},
+
+_pathToRoute: function(path)
+{
+if (!path)
+return [];
+var route = [];
+route.push(this._targetNodeIndex);
+for (var i = 0; i < path.length; ++i)
+route.push(path[i].item.nodeIndex);
+route.reverse();
+return route;
+}
+};
+
+WebInspector.HeapSnapshotsDiff = function(snapshot, className)
+{
+this._snapshot = snapshot;
+this._className = className;
+};
+
+WebInspector.HeapSnapshotsDiff.prototype = {
+calculate: function()
+{
+var aggregates = this._snapshot.aggregates(true)[this._className];
+var indexes = aggregates ? aggregates.idxs : [];
+var i = 0, l = this._baseIds.length;
+var j = 0, m = indexes.length;
+var diff = { addedCount: 0, removedCount: 0, addedSize: 0, removedSize: 0 };
+
+var nodeB = new WebInspector.HeapSnapshotNode(this._snapshot, indexes[j]);
+while (i < l && j < m) {
+var nodeAId = this._baseIds[i];
+if (nodeAId < nodeB.id) {
+diff.removedCount++;
+diff.removedSize += this._baseSelfSizes[i];
+++i;
+} else if (nodeAId > nodeB.id) {
+diff.addedCount++;
+diff.addedSize += nodeB.selfSize;
+nodeB.nodeIndex = indexes[++j];                
+} else {
+++i;
+nodeB.nodeIndex = indexes[++j];                
+}
+}
+while (i < l) {
+diff.removedCount++;
+diff.removedSize += this._baseSelfSizes[i];
+++i;
+}
+while (j < m) {
+diff.addedCount++;
+diff.addedSize += nodeB.selfSize;
+nodeB.nodeIndex = indexes[++j];
+}
+diff.countDelta = diff.addedCount - diff.removedCount;
+diff.sizeDelta = diff.addedSize - diff.removedSize;
+return diff;
+},
+
+pushBaseIds: function(baseIds)
+{
+this._baseIds = baseIds;
+},
+
+pushBaseSelfSizes: function(baseSelfSizes)
+{
+this._baseSelfSizes = baseSelfSizes;
+}
+};
+;
+
+
+WebInspector.HeapSnapshotWorkerDispatcher = function(globalObject, postMessage)
+{
+this._objects = [];
+this._global = globalObject;
+this._postMessage = postMessage;
+}
+
+WebInspector.HeapSnapshotWorkerDispatcher.prototype = {
+_findFunction: function(name)
+{
+var path = name.split(".");
+var result = this._global;
+for (var i = 0; i < path.length; ++i)
+result = result[path[i]];
+return result;
+},
+
+dispatchMessage: function(event)
+{
+var data = event.data;
+switch (data.disposition) {
+case "create": {
+var constructorFunction = this._findFunction(data.methodName);
+this._objects[data.objectId] = new constructorFunction();
+this._postMessage({callId: data.callId});
+break;
+}
+case "dispose": {
+delete this._objects[data.objectId];
+this._postMessage({callId: data.callId});
+break;
+}
+case "getter": {
+var object = this._objects[data.objectId];
+var result = object[data.methodName];
+this._postMessage({callId: data.callId, result: result});
+break;
+}
+case "factory": {
+var object = this._objects[data.objectId];
+var result = object[data.methodName].apply(object, data.methodArguments);
+if (result)
+this._objects[data.newObjectId] = result;            
+this._postMessage({callId: data.callId, result: !!result});
+break;
+}
+case "method": {
+var object = this._objects[data.objectId];
+var result = object[data.methodName].apply(object, data.methodArguments);
+this._postMessage({callId: data.callId, result: result});
+break;
+}
+}
+}
+};
+;
+
+function postMessageWrapper(message)
+{
+postMessage(message);
+}
+
+var dispatcher = new WebInspector.HeapSnapshotWorkerDispatcher(this, postMessageWrapper);
+addEventListener("message", dispatcher.dispatchMessage.bind(dispatcher), false);