WebInspector={};WebInspector.UIString=function(s){return s;};WebInspector.HeapSnapshotArraySlice=function(array,start,end)
{this._array=array;this._start=start;this.length=end-start;}
WebInspector.HeapSnapshotArraySlice.prototype={item:function(index)
{return this._array[this._start+index];},slice:function(start,end)
{if(typeof end==="undefined")
end=this.length;return this._array.subarray(this._start+start,this._start+end);}}
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);},hasStringName:function()
{throw new Error("Not implemented");},name:function()
{throw new Error("Not implemented");},node:function()
{return this._snapshot.createNode(this.nodeIndex());},nodeIndex:function()
{return this._edges.item(this.edgeIndex+this._snapshot._edgeToNodeOffset);},rawEdges:function()
{return this._edges;},toString:function()
{return"HeapSnapshotEdge: "+this.name();},type:function()
{return this._snapshot._edgeTypes[this._type()];},serialize:function()
{var node=this.node();return{name:this.name(),node:node.serialize(),nodeIndex:this.nodeIndex(),type:this.type(),distance:node.distance()};},_type:function()
{return this._edges.item(this.edgeIndex+this._snapshot._edgeTypeOffset);}};WebInspector.HeapSnapshotEdgeIterator=function(edge)
{this.edge=edge;}
WebInspector.HeapSnapshotEdgeIterator.prototype={rewind:function()
{this.edge.edgeIndex=0;},hasNext:function()
{return this.edge.edgeIndex<this.edge._edges.length;},index:function()
{return this.edge.edgeIndex;},setIndex:function(newIndex)
{this.edge.edgeIndex=newIndex;},item:function()
{return this.edge;},next:function()
{this.edge.edgeIndex+=this.edge._snapshot._edgeFieldsCount;}};WebInspector.HeapSnapshotRetainerEdge=function(snapshot,retainedNodeIndex,retainerIndex)
{this._snapshot=snapshot;this._retainedNodeIndex=retainedNodeIndex;var retainedNodeOrdinal=retainedNodeIndex/snapshot._nodeFieldCount;this._firstRetainer=snapshot._firstRetainerIndex[retainedNodeOrdinal];this._retainersCount=snapshot._firstRetainerIndex[retainedNodeOrdinal+1]-this._firstRetainer;this.setRetainerIndex(retainerIndex);}
WebInspector.HeapSnapshotRetainerEdge.prototype={clone:function()
{return new WebInspector.HeapSnapshotRetainerEdge(this._snapshot,this._retainedNodeIndex,this.retainerIndex());},hasStringName:function()
{return this._edge().hasStringName();},name:function()
{return this._edge().name();},node:function()
{return this._node();},nodeIndex:function()
{return this._nodeIndex;},retainerIndex:function()
{return this._retainerIndex;},setRetainerIndex:function(newIndex)
{if(newIndex!==this._retainerIndex){this._retainerIndex=newIndex;this.edgeIndex=newIndex;}},set edgeIndex(edgeIndex)
{var retainerIndex=this._firstRetainer+edgeIndex;this._globalEdgeIndex=this._snapshot._retainingEdges[retainerIndex];this._nodeIndex=this._snapshot._retainingNodes[retainerIndex];delete this._edgeInstance;delete this._nodeInstance;},_node:function()
{if(!this._nodeInstance)
this._nodeInstance=this._snapshot.createNode(this._nodeIndex);return this._nodeInstance;},_edge:function()
{if(!this._edgeInstance){var edgeIndex=this._globalEdgeIndex-this._node()._edgeIndexesStart();this._edgeInstance=this._snapshot.createEdge(this._node().rawEdges(),edgeIndex);}
return this._edgeInstance;},toString:function()
{return this._edge().toString();},serialize:function()
{var node=this.node();return{name:this.name(),node:node.serialize(),nodeIndex:this.nodeIndex(),type:this.type(),distance:node.distance()};},type:function()
{return this._edge().type();}}
WebInspector.HeapSnapshotRetainerEdgeIterator=function(retainer)
{this.retainer=retainer;}
WebInspector.HeapSnapshotRetainerEdgeIterator.prototype={rewind:function()
{this.retainer.setRetainerIndex(0);},hasNext:function()
{return this.retainer.retainerIndex()<this.retainer._retainersCount;},index:function()
{return this.retainer.retainerIndex();},setIndex:function(newIndex)
{this.retainer.setRetainerIndex(newIndex);},item:function()
{return this.retainer;},next:function()
{this.retainer.setRetainerIndex(this.retainer.retainerIndex()+1);}};WebInspector.HeapSnapshotNode=function(snapshot,nodeIndex)
{this._snapshot=snapshot;this._firstNodeIndex=nodeIndex;this.nodeIndex=nodeIndex;}
WebInspector.HeapSnapshotNode.prototype={distance:function()
{return this._snapshot._nodeDistances[this.nodeIndex/this._snapshot._nodeFieldCount];},className:function()
{throw new Error("Not implemented");},classIndex:function()
{throw new Error("Not implemented");},dominatorIndex:function()
{var nodeFieldCount=this._snapshot._nodeFieldCount;return this._snapshot._dominatorsTree[this.nodeIndex/this._snapshot._nodeFieldCount]*nodeFieldCount;},edges:function()
{return new WebInspector.HeapSnapshotEdgeIterator(this._snapshot.createEdge(this.rawEdges(),0));},edgesCount:function()
{return(this._edgeIndexesEnd()-this._edgeIndexesStart())/this._snapshot._edgeFieldsCount;},id:function()
{throw new Error("Not implemented");},isRoot:function()
{return this.nodeIndex===this._snapshot._rootNodeIndex;},name:function()
{return this._snapshot._strings[this._name()];},rawEdges:function()
{return new WebInspector.HeapSnapshotArraySlice(this._snapshot._containmentEdges,this._edgeIndexesStart(),this._edgeIndexesEnd());},retainedSize:function()
{var snapshot=this._snapshot;return snapshot._nodes[this.nodeIndex+snapshot._nodeRetainedSizeOffset];},retainers:function()
{return new WebInspector.HeapSnapshotRetainerEdgeIterator(this._snapshot.createRetainingEdge(this.nodeIndex,0));},selfSize:function()
{var snapshot=this._snapshot;return snapshot._nodes[this.nodeIndex+snapshot._nodeSelfSizeOffset];},type:function()
{return this._snapshot._nodeTypes[this._type()];},serialize:function()
{return{id:this.id(),name:this.name(),distance:this.distance(),nodeIndex:this.nodeIndex,retainedSize:this.retainedSize(),selfSize:this.selfSize(),type:this.type(),};},_name:function()
{var snapshot=this._snapshot;return snapshot._nodes[this.nodeIndex+snapshot._nodeNameOffset];},_edgeIndexesStart:function()
{return this._snapshot._firstEdgeIndexes[this._ordinal()];},_edgeIndexesEnd:function()
{return this._snapshot._firstEdgeIndexes[this._ordinal()+1];},_ordinal:function()
{return this.nodeIndex/this._snapshot._nodeFieldCount;},_nextNodeIndex:function()
{return this.nodeIndex+this._snapshot._nodeFieldCount;},_type:function()
{var snapshot=this._snapshot;return snapshot._nodes[this.nodeIndex+snapshot._nodeTypeOffset];}};WebInspector.HeapSnapshotNodeIterator=function(node)
{this.node=node;this._nodesLength=node._snapshot._nodes.length;}
WebInspector.HeapSnapshotNodeIterator.prototype={rewind:function()
{this.node.nodeIndex=this.node._firstNodeIndex;},hasNext:function()
{return this.node.nodeIndex<this._nodesLength;},index:function()
{return this.node.nodeIndex;},setIndex:function(newIndex)
{this.node.nodeIndex=newIndex;},item:function()
{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._containmentEdges=profile.edges;this._metaNode=profile.snapshot.meta;this._strings=profile.strings;this._noDistance=-5;this._rootNodeIndex=0;if(profile.snapshot.root_index)
this._rootNodeIndex=profile.snapshot.root_index;this._snapshotDiffs={};this._aggregatesForDiff=null;this._init();}
function HeapSnapshotMetainfo()
{this.node_fields=[];this.node_types=[];this.edge_fields=[];this.edge_types=[];this.type_strings={};this.fields=[];this.types=[];}
function HeapSnapshotHeader()
{this.title="";this.uid=0;this.meta=new HeapSnapshotMetainfo();this.node_count=0;this.edge_count=0;}
WebInspector.HeapSnapshot.prototype={_init:function()
{var meta=this._metaNode;this._nodeTypeOffset=meta.node_fields.indexOf("type");this._nodeNameOffset=meta.node_fields.indexOf("name");this._nodeIdOffset=meta.node_fields.indexOf("id");this._nodeSelfSizeOffset=meta.node_fields.indexOf("self_size");this._nodeEdgeCountOffset=meta.node_fields.indexOf("edge_count");this._nodeFieldCount=meta.node_fields.length;this._nodeTypes=meta.node_types[this._nodeTypeOffset];this._nodeHiddenType=this._nodeTypes.indexOf("hidden");this._nodeObjectType=this._nodeTypes.indexOf("object");this._nodeNativeType=this._nodeTypes.indexOf("native");this._nodeCodeType=this._nodeTypes.indexOf("code");this._nodeSyntheticType=this._nodeTypes.indexOf("synthetic");this._edgeFieldsCount=meta.edge_fields.length;this._edgeTypeOffset=meta.edge_fields.indexOf("type");this._edgeNameOffset=meta.edge_fields.indexOf("name_or_index");this._edgeToNodeOffset=meta.edge_fields.indexOf("to_node");this._edgeTypes=meta.edge_types[this._edgeTypeOffset];this._edgeTypes.push("invisible");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._edgeWeakType=this._edgeTypes.indexOf("weak");this._edgeInvisibleType=this._edgeTypes.indexOf("invisible");this.nodeCount=this._nodes.length/this._nodeFieldCount;this._edgeCount=this._containmentEdges.length/this._edgeFieldsCount;this._buildEdgeIndexes();this._markInvisibleEdges();this._buildRetainers();this._calculateFlags();this._calculateDistances();var result=this._buildPostOrderIndex();this._dominatorsTree=this._buildDominatorTree(result.postOrderIndex2NodeOrdinal,result.nodeOrdinal2PostOrderIndex);this._calculateRetainedSizes(result.postOrderIndex2NodeOrdinal);this._buildDominatedNodes();},_buildEdgeIndexes:function()
{var nodes=this._nodes;var nodeCount=this.nodeCount;var firstEdgeIndexes=this._firstEdgeIndexes=new Uint32Array(nodeCount+1);var nodeFieldCount=this._nodeFieldCount;var edgeFieldsCount=this._edgeFieldsCount;var nodeEdgeCountOffset=this._nodeEdgeCountOffset;firstEdgeIndexes[nodeCount]=this._containmentEdges.length;for(var nodeOrdinal=0,edgeIndex=0;nodeOrdinal<nodeCount;++nodeOrdinal){firstEdgeIndexes[nodeOrdinal]=edgeIndex;edgeIndex+=nodes[nodeOrdinal*nodeFieldCount+nodeEdgeCountOffset]*edgeFieldsCount;}},_buildRetainers:function()
{var retainingNodes=this._retainingNodes=new Uint32Array(this._edgeCount);var retainingEdges=this._retainingEdges=new Uint32Array(this._edgeCount);var firstRetainerIndex=this._firstRetainerIndex=new Uint32Array(this.nodeCount+1);var containmentEdges=this._containmentEdges;var edgeFieldsCount=this._edgeFieldsCount;var nodeFieldCount=this._nodeFieldCount;var edgeToNodeOffset=this._edgeToNodeOffset;var nodes=this._nodes;var firstEdgeIndexes=this._firstEdgeIndexes;var nodeCount=this.nodeCount;for(var toNodeFieldIndex=edgeToNodeOffset,l=containmentEdges.length;toNodeFieldIndex<l;toNodeFieldIndex+=edgeFieldsCount){var toNodeIndex=containmentEdges[toNodeFieldIndex];if(toNodeIndex%nodeFieldCount)
throw new Error("Invalid toNodeIndex "+toNodeIndex);++firstRetainerIndex[toNodeIndex/nodeFieldCount];}
for(var i=0,firstUnusedRetainerSlot=0;i<nodeCount;i++){var retainersCount=firstRetainerIndex[i];firstRetainerIndex[i]=firstUnusedRetainerSlot;retainingNodes[firstUnusedRetainerSlot]=retainersCount;firstUnusedRetainerSlot+=retainersCount;}
firstRetainerIndex[nodeCount]=retainingNodes.length;var nextNodeFirstEdgeIndex=firstEdgeIndexes[0];for(var srcNodeOrdinal=0;srcNodeOrdinal<nodeCount;++srcNodeOrdinal){var firstEdgeIndex=nextNodeFirstEdgeIndex;nextNodeFirstEdgeIndex=firstEdgeIndexes[srcNodeOrdinal+1];var srcNodeIndex=srcNodeOrdinal*nodeFieldCount;for(var edgeIndex=firstEdgeIndex;edgeIndex<nextNodeFirstEdgeIndex;edgeIndex+=edgeFieldsCount){var toNodeIndex=containmentEdges[edgeIndex+edgeToNodeOffset];if(toNodeIndex%nodeFieldCount)
throw new Error("Invalid toNodeIndex "+toNodeIndex);var firstRetainerSlotIndex=firstRetainerIndex[toNodeIndex/nodeFieldCount];var nextUnusedRetainerSlotIndex=firstRetainerSlotIndex+(--retainingNodes[firstRetainerSlotIndex]);retainingNodes[nextUnusedRetainerSlotIndex]=srcNodeIndex;retainingEdges[nextUnusedRetainerSlotIndex]=edgeIndex;}}},createNode:function(nodeIndex)
{throw new Error("Not implemented");},createEdge:function(edges,edgeIndex)
{throw new Error("Not implemented");},createRetainingEdge:function(retainedNodeIndex,retainerIndex)
{throw new Error("Not implemented");},dispose:function()
{delete this._nodes;delete this._strings;delete this._retainingEdges;delete this._retainingNodes;delete this._firstRetainerIndex;if(this._aggregates){delete this._aggregates;delete this._aggregatesSortedFlags;}
delete this._dominatedNodes;delete this._firstDominatedNodeIndex;delete this._nodeDistances;delete this._dominatorsTree;},_allNodes:function()
{return new WebInspector.HeapSnapshotNodeIterator(this.rootNode());},rootNode:function()
{return this.createNode(this._rootNodeIndex);},get rootNodeIndex()
{return this._rootNodeIndex;},get totalSize()
{return this.rootNode().retainedSize();},_getDominatedIndex:function(nodeIndex)
{if(nodeIndex%this._nodeFieldCount)
throw new Error("Invalid nodeIndex: "+nodeIndex);return this._firstDominatedNodeIndex[nodeIndex/this._nodeFieldCount];},_dominatedNodesOfNode:function(node)
{var dominatedIndexFrom=this._getDominatedIndex(node.nodeIndex);var dominatedIndexTo=this._getDominatedIndex(node._nextNodeIndex());return new WebInspector.HeapSnapshotArraySlice(this._dominatedNodes,dominatedIndexFrom,dominatedIndexTo);},aggregates:function(sortedIndexes,key,filterString)
{if(!this._aggregates){this._aggregates={};this._aggregatesSortedFlags={};}
var aggregatesByClassName=this._aggregates[key];if(aggregatesByClassName){if(sortedIndexes&&!this._aggregatesSortedFlags[key]){this._sortAggregateIndexes(aggregatesByClassName);this._aggregatesSortedFlags[key]=sortedIndexes;}
return aggregatesByClassName;}
var filter;if(filterString)
filter=this._parseFilter(filterString);var aggregates=this._buildAggregates(filter);this._calculateClassesRetainedSize(aggregates.aggregatesByClassIndex,filter);aggregatesByClassName=aggregates.aggregatesByClassName;if(sortedIndexes)
this._sortAggregateIndexes(aggregatesByClassName);this._aggregatesSortedFlags[key]=sortedIndexes;this._aggregates[key]=aggregatesByClassName;return aggregatesByClassName;},aggregatesForDiff:function()
{if(this._aggregatesForDiff)
return this._aggregatesForDiff;var aggregatesByClassName=this.aggregates(true,"allObjects");this._aggregatesForDiff={};var node=this.createNode();for(var className in aggregatesByClassName){var aggregate=aggregatesByClassName[className];var indexes=aggregate.idxs;var ids=new Array(indexes.length);var selfSizes=new Array(indexes.length);for(var i=0;i<indexes.length;i++){node.nodeIndex=indexes[i];ids[i]=node.id();selfSizes[i]=node.selfSize();}
this._aggregatesForDiff[className]={indexes:indexes,ids:ids,selfSizes:selfSizes};}
return this._aggregatesForDiff;},_isUserRoot:function(node)
{return true;},forEachRoot:function(action,userRootsOnly)
{for(var iter=this.rootNode().edges();iter.hasNext();iter.next()){var node=iter.edge.node();if(!userRootsOnly||this._isUserRoot(node))
action(node);}},_calculateDistances:function()
{var nodeFieldCount=this._nodeFieldCount;var nodeCount=this.nodeCount;var distances=new Int32Array(nodeCount);var noDistance=this._noDistance;for(var i=0;i<nodeCount;++i)
distances[i]=noDistance;var nodesToVisit=new Uint32Array(this.nodeCount);var nodesToVisitLength=0;function enqueueNode(node)
{var ordinal=node._ordinal();if(distances[ordinal]!==noDistance)
return;distances[ordinal]=0;nodesToVisit[nodesToVisitLength++]=node.nodeIndex;}
this.forEachRoot(enqueueNode,true);this._bfs(nodesToVisit,nodesToVisitLength,distances);nodesToVisitLength=0;this.forEachRoot(enqueueNode);this._bfs(nodesToVisit,nodesToVisitLength,distances);this._nodeDistances=distances;},_bfs:function(nodesToVisit,nodesToVisitLength,distances)
{var edgeFieldsCount=this._edgeFieldsCount;var nodeFieldCount=this._nodeFieldCount;var containmentEdges=this._containmentEdges;var firstEdgeIndexes=this._firstEdgeIndexes;var edgeToNodeOffset=this._edgeToNodeOffset;var edgeTypeOffset=this._edgeTypeOffset;var nodes=this._nodes;var nodeCount=this.nodeCount;var containmentEdgesLength=containmentEdges.length;var edgeWeakType=this._edgeWeakType;var noDistance=this._noDistance;var index=0;while(index<nodesToVisitLength){var nodeIndex=nodesToVisit[index++];var nodeOrdinal=nodeIndex/nodeFieldCount;var distance=distances[nodeOrdinal]+1;var firstEdgeIndex=firstEdgeIndexes[nodeOrdinal];var edgesEnd=firstEdgeIndexes[nodeOrdinal+1];for(var edgeIndex=firstEdgeIndex;edgeIndex<edgesEnd;edgeIndex+=edgeFieldsCount){var edgeType=containmentEdges[edgeIndex+edgeTypeOffset];if(edgeType==edgeWeakType)
continue;var childNodeIndex=containmentEdges[edgeIndex+edgeToNodeOffset];var childNodeOrdinal=childNodeIndex/nodeFieldCount;if(distances[childNodeOrdinal]!==noDistance)
continue;distances[childNodeOrdinal]=distance;nodesToVisit[nodesToVisitLength++]=childNodeIndex;}}
if(nodesToVisitLength>nodeCount)
throw new Error("BFS failed. Nodes to visit ("+nodesToVisitLength+") is more than nodes count ("+nodeCount+")");},_buildAggregates:function(filter)
{var aggregates={};var aggregatesByClassName={};var classIndexes=[];var nodes=this._nodes;var mapAndFlag=this.userObjectsMapAndFlag();var flags=mapAndFlag?mapAndFlag.map:null;var flag=mapAndFlag?mapAndFlag.flag:0;var nodesLength=nodes.length;var nodeNativeType=this._nodeNativeType;var nodeFieldCount=this._nodeFieldCount;var selfSizeOffset=this._nodeSelfSizeOffset;var nodeTypeOffset=this._nodeTypeOffset;var node=this.rootNode();var nodeDistances=this._nodeDistances;for(var nodeIndex=0;nodeIndex<nodesLength;nodeIndex+=nodeFieldCount){var nodeOrdinal=nodeIndex/nodeFieldCount;if(flags&&!(flags[nodeOrdinal]&flag))
continue;node.nodeIndex=nodeIndex;if(filter&&!filter(node))
continue;var selfSize=nodes[nodeIndex+selfSizeOffset];if(!selfSize&&nodes[nodeIndex+nodeTypeOffset]!==nodeNativeType)
continue;var classIndex=node.classIndex();if(!(classIndex in aggregates)){var nodeType=node.type();var nameMatters=nodeType==="object"||nodeType==="native";var value={count:1,distance:nodeDistances[nodeOrdinal],self:selfSize,maxRet:0,type:nodeType,name:nameMatters?node.name():null,idxs:[nodeIndex]};aggregates[classIndex]=value;classIndexes.push(classIndex);aggregatesByClassName[node.className()]=value;}else{var clss=aggregates[classIndex];clss.distance=Math.min(clss.distance,nodeDistances[nodeOrdinal]);++clss.count;clss.self+=selfSize;clss.idxs.push(nodeIndex);}}
for(var i=0,l=classIndexes.length;i<l;++i){var classIndex=classIndexes[i];aggregates[classIndex].idxs=aggregates[classIndex].idxs.slice();}
return{aggregatesByClassName:aggregatesByClassName,aggregatesByClassIndex:aggregates};},_calculateClassesRetainedSize:function(aggregates,filter)
{var rootNodeIndex=this._rootNodeIndex;var node=this.createNode(rootNodeIndex);var list=[rootNodeIndex];var sizes=[-1];var classes=[];var seenClassNameIndexes={};var nodeFieldCount=this._nodeFieldCount;var nodeTypeOffset=this._nodeTypeOffset;var nodeNativeType=this._nodeNativeType;var dominatedNodes=this._dominatedNodes;var nodes=this._nodes;var mapAndFlag=this.userObjectsMapAndFlag();var flags=mapAndFlag?mapAndFlag.map:null;var flag=mapAndFlag?mapAndFlag.flag:0;var firstDominatedNodeIndex=this._firstDominatedNodeIndex;while(list.length){var nodeIndex=list.pop();node.nodeIndex=nodeIndex;var classIndex=node.classIndex();var seen=!!seenClassNameIndexes[classIndex];var nodeOrdinal=nodeIndex/nodeFieldCount;var dominatedIndexFrom=firstDominatedNodeIndex[nodeOrdinal];var dominatedIndexTo=firstDominatedNodeIndex[nodeOrdinal+1];if(!seen&&(!flags||(flags[nodeOrdinal]&flag))&&(!filter||filter(node))&&(node.selfSize()||nodes[nodeIndex+nodeTypeOffset]===nodeNativeType)){aggregates[classIndex].maxRet+=node.retainedSize();if(dominatedIndexFrom!==dominatedIndexTo){seenClassNameIndexes[classIndex]=true;sizes.push(list.length);classes.push(classIndex);}}
for(var i=dominatedIndexFrom;i<dominatedIndexTo;i++)
list.push(dominatedNodes[i]);var l=list.length;while(sizes[sizes.length-1]===l){sizes.pop();classIndex=classes.pop();seenClassNameIndexes[classIndex]=false;}}},_sortAggregateIndexes:function(aggregates)
{var nodeA=this.createNode();var nodeB=this.createNode();for(var clss in aggregates)
aggregates[clss].idxs.sort(function(idxA,idxB){nodeA.nodeIndex=idxA;nodeB.nodeIndex=idxB;return nodeA.id()<nodeB.id()?-1:1;});},_buildPostOrderIndex:function()
{var nodeFieldCount=this._nodeFieldCount;var nodes=this._nodes;var nodeCount=this.nodeCount;var rootNodeOrdinal=this._rootNodeIndex/nodeFieldCount;var edgeFieldsCount=this._edgeFieldsCount;var edgeTypeOffset=this._edgeTypeOffset;var edgeToNodeOffset=this._edgeToNodeOffset;var edgeShortcutType=this._edgeShortcutType;var firstEdgeIndexes=this._firstEdgeIndexes;var containmentEdges=this._containmentEdges;var containmentEdgesLength=this._containmentEdges.length;var mapAndFlag=this.userObjectsMapAndFlag();var flags=mapAndFlag?mapAndFlag.map:null;var flag=mapAndFlag?mapAndFlag.flag:0;var nodesToVisit=new Uint32Array(nodeCount);var postOrderIndex2NodeOrdinal=new Uint32Array(nodeCount);var nodeOrdinal2PostOrderIndex=new Uint32Array(nodeCount);var painted=new Uint8Array(nodeCount);var nodesToVisitLength=0;var postOrderIndex=0;var grey=1;var black=2;nodesToVisit[nodesToVisitLength++]=rootNodeOrdinal;painted[rootNodeOrdinal]=grey;while(nodesToVisitLength){var nodeOrdinal=nodesToVisit[nodesToVisitLength-1];if(painted[nodeOrdinal]===grey){painted[nodeOrdinal]=black;var nodeFlag=!flags||(flags[nodeOrdinal]&flag);var beginEdgeIndex=firstEdgeIndexes[nodeOrdinal];var endEdgeIndex=firstEdgeIndexes[nodeOrdinal+1];for(var edgeIndex=beginEdgeIndex;edgeIndex<endEdgeIndex;edgeIndex+=edgeFieldsCount){if(nodeOrdinal!==rootNodeOrdinal&&containmentEdges[edgeIndex+edgeTypeOffset]===edgeShortcutType)
continue;var childNodeIndex=containmentEdges[edgeIndex+edgeToNodeOffset];var childNodeOrdinal=childNodeIndex/nodeFieldCount;var childNodeFlag=!flags||(flags[childNodeOrdinal]&flag);if(nodeOrdinal!==rootNodeOrdinal&&childNodeFlag&&!nodeFlag)
continue;if(!painted[childNodeOrdinal]){painted[childNodeOrdinal]=grey;nodesToVisit[nodesToVisitLength++]=childNodeOrdinal;}}}else{nodeOrdinal2PostOrderIndex[nodeOrdinal]=postOrderIndex;postOrderIndex2NodeOrdinal[postOrderIndex++]=nodeOrdinal;--nodesToVisitLength;}}
if(postOrderIndex!==nodeCount){console.log("Error: Corrupted snapshot. "+(nodeCount-postOrderIndex)+" nodes are unreachable from the root:");var dumpNode=this.rootNode();for(var i=0;i<nodeCount;++i){if(painted[i]!==black){nodeOrdinal2PostOrderIndex[i]=postOrderIndex;postOrderIndex2NodeOrdinal[postOrderIndex++]=i;dumpNode.nodeIndex=i*nodeFieldCount;console.log(JSON.stringify(dumpNode.serialize()));for(var retainers=dumpNode.retainers();retainers.hasNext();retainers=retainers.item().node().retainers())
console.log("  edgeName: "+retainers.item().name()+" nodeClassName: "+retainers.item().node().className());}}}
return{postOrderIndex2NodeOrdinal:postOrderIndex2NodeOrdinal,nodeOrdinal2PostOrderIndex:nodeOrdinal2PostOrderIndex};},_buildDominatorTree:function(postOrderIndex2NodeOrdinal,nodeOrdinal2PostOrderIndex)
{var nodeFieldCount=this._nodeFieldCount;var nodes=this._nodes;var firstRetainerIndex=this._firstRetainerIndex;var retainingNodes=this._retainingNodes;var retainingEdges=this._retainingEdges;var edgeFieldsCount=this._edgeFieldsCount;var edgeTypeOffset=this._edgeTypeOffset;var edgeToNodeOffset=this._edgeToNodeOffset;var edgeShortcutType=this._edgeShortcutType;var firstEdgeIndexes=this._firstEdgeIndexes;var containmentEdges=this._containmentEdges;var containmentEdgesLength=this._containmentEdges.length;var rootNodeIndex=this._rootNodeIndex;var mapAndFlag=this.userObjectsMapAndFlag();var flags=mapAndFlag?mapAndFlag.map:null;var flag=mapAndFlag?mapAndFlag.flag:0;var nodesCount=postOrderIndex2NodeOrdinal.length;var rootPostOrderedIndex=nodesCount-1;var noEntry=nodesCount;var dominators=new Uint32Array(nodesCount);for(var i=0;i<rootPostOrderedIndex;++i)
dominators[i]=noEntry;dominators[rootPostOrderedIndex]=rootPostOrderedIndex;var affected=new Uint8Array(nodesCount);var nodeOrdinal;{nodeOrdinal=this._rootNodeIndex/nodeFieldCount;var beginEdgeToNodeFieldIndex=firstEdgeIndexes[nodeOrdinal]+edgeToNodeOffset;var endEdgeToNodeFieldIndex=firstEdgeIndexes[nodeOrdinal+1];for(var toNodeFieldIndex=beginEdgeToNodeFieldIndex;toNodeFieldIndex<endEdgeToNodeFieldIndex;toNodeFieldIndex+=edgeFieldsCount){var childNodeOrdinal=containmentEdges[toNodeFieldIndex]/nodeFieldCount;affected[nodeOrdinal2PostOrderIndex[childNodeOrdinal]]=1;}}
var changed=true;while(changed){changed=false;for(var postOrderIndex=rootPostOrderedIndex-1;postOrderIndex>=0;--postOrderIndex){if(affected[postOrderIndex]===0)
continue;affected[postOrderIndex]=0;if(dominators[postOrderIndex]===rootPostOrderedIndex)
continue;nodeOrdinal=postOrderIndex2NodeOrdinal[postOrderIndex];var nodeFlag=!flags||(flags[nodeOrdinal]&flag);var newDominatorIndex=noEntry;var beginRetainerIndex=firstRetainerIndex[nodeOrdinal];var endRetainerIndex=firstRetainerIndex[nodeOrdinal+1];for(var retainerIndex=beginRetainerIndex;retainerIndex<endRetainerIndex;++retainerIndex){var retainerEdgeIndex=retainingEdges[retainerIndex];var retainerEdgeType=containmentEdges[retainerEdgeIndex+edgeTypeOffset];var retainerNodeIndex=retainingNodes[retainerIndex];if(retainerNodeIndex!==rootNodeIndex&&retainerEdgeType===edgeShortcutType)
continue;var retainerNodeOrdinal=retainerNodeIndex/nodeFieldCount;var retainerNodeFlag=!flags||(flags[retainerNodeOrdinal]&flag);if(retainerNodeIndex!==rootNodeIndex&&nodeFlag&&!retainerNodeFlag)
continue;var retanerPostOrderIndex=nodeOrdinal2PostOrderIndex[retainerNodeOrdinal];if(dominators[retanerPostOrderIndex]!==noEntry){if(newDominatorIndex===noEntry)
newDominatorIndex=retanerPostOrderIndex;else{while(retanerPostOrderIndex!==newDominatorIndex){while(retanerPostOrderIndex<newDominatorIndex)
retanerPostOrderIndex=dominators[retanerPostOrderIndex];while(newDominatorIndex<retanerPostOrderIndex)
newDominatorIndex=dominators[newDominatorIndex];}}
if(newDominatorIndex===rootPostOrderedIndex)
break;}}
if(newDominatorIndex!==noEntry&&dominators[postOrderIndex]!==newDominatorIndex){dominators[postOrderIndex]=newDominatorIndex;changed=true;nodeOrdinal=postOrderIndex2NodeOrdinal[postOrderIndex];beginEdgeToNodeFieldIndex=firstEdgeIndexes[nodeOrdinal]+edgeToNodeOffset;endEdgeToNodeFieldIndex=firstEdgeIndexes[nodeOrdinal+1];for(var toNodeFieldIndex=beginEdgeToNodeFieldIndex;toNodeFieldIndex<endEdgeToNodeFieldIndex;toNodeFieldIndex+=edgeFieldsCount){var childNodeOrdinal=containmentEdges[toNodeFieldIndex]/nodeFieldCount;affected[nodeOrdinal2PostOrderIndex[childNodeOrdinal]]=1;}}}}
var dominatorsTree=new Uint32Array(nodesCount);for(var postOrderIndex=0,l=dominators.length;postOrderIndex<l;++postOrderIndex){nodeOrdinal=postOrderIndex2NodeOrdinal[postOrderIndex];dominatorsTree[nodeOrdinal]=postOrderIndex2NodeOrdinal[dominators[postOrderIndex]];}
return dominatorsTree;},_calculateRetainedSizes:function(postOrderIndex2NodeOrdinal)
{var nodeCount=this.nodeCount;var nodes=this._nodes;var nodeSelfSizeOffset=this._nodeSelfSizeOffset;var nodeFieldCount=this._nodeFieldCount;var dominatorsTree=this._dominatorsTree;var nodeRetainedSizeOffset=this._nodeRetainedSizeOffset=this._nodeEdgeCountOffset;delete this._nodeEdgeCountOffset;for(var nodeIndex=0,l=nodes.length;nodeIndex<l;nodeIndex+=nodeFieldCount)
nodes[nodeIndex+nodeRetainedSizeOffset]=nodes[nodeIndex+nodeSelfSizeOffset];for(var postOrderIndex=0;postOrderIndex<nodeCount-1;++postOrderIndex){var nodeOrdinal=postOrderIndex2NodeOrdinal[postOrderIndex];var nodeIndex=nodeOrdinal*nodeFieldCount;var dominatorIndex=dominatorsTree[nodeOrdinal]*nodeFieldCount;nodes[dominatorIndex+nodeRetainedSizeOffset]+=nodes[nodeIndex+nodeRetainedSizeOffset];}},_buildDominatedNodes:function()
{var indexArray=this._firstDominatedNodeIndex=new Uint32Array(this.nodeCount+1);var dominatedNodes=this._dominatedNodes=new Uint32Array(this.nodeCount-1);var nodeFieldCount=this._nodeFieldCount;var dominatorsTree=this._dominatorsTree;var fromNodeOrdinal=0;var toNodeOrdinal=this.nodeCount;var rootNodeOrdinal=this._rootNodeIndex/nodeFieldCount;if(rootNodeOrdinal===fromNodeOrdinal)
fromNodeOrdinal=1;else if(rootNodeOrdinal===toNodeOrdinal-1)
toNodeOrdinal=toNodeOrdinal-1;else
throw new Error("Root node is expected to be either first or last");for(var nodeOrdinal=fromNodeOrdinal;nodeOrdinal<toNodeOrdinal;++nodeOrdinal)
++indexArray[dominatorsTree[nodeOrdinal]];var firstDominatedNodeIndex=0;for(var i=0,l=this.nodeCount;i<l;++i){var dominatedCount=dominatedNodes[firstDominatedNodeIndex]=indexArray[i];indexArray[i]=firstDominatedNodeIndex;firstDominatedNodeIndex+=dominatedCount;}
indexArray[this.nodeCount]=dominatedNodes.length;for(var nodeOrdinal=fromNodeOrdinal;nodeOrdinal<toNodeOrdinal;++nodeOrdinal){var dominatorOrdinal=dominatorsTree[nodeOrdinal];var dominatedRefIndex=indexArray[dominatorOrdinal];dominatedRefIndex+=(--dominatedNodes[dominatedRefIndex]);dominatedNodes[dominatedRefIndex]=nodeOrdinal*nodeFieldCount;}},_markInvisibleEdges:function()
{throw new Error("Not implemented");},_calculateFlags:function()
{throw new Error("Not implemented");},userObjectsMapAndFlag:function()
{throw new Error("Not implemented");},calculateSnapshotDiff:function(baseSnapshotId,baseSnapshotAggregates)
{var snapshotDiff=this._snapshotDiffs[baseSnapshotId];if(snapshotDiff)
return snapshotDiff;snapshotDiff={};var aggregates=this.aggregates(true,"allObjects");for(var className in baseSnapshotAggregates){var baseAggregate=baseSnapshotAggregates[className];var diff=this._calculateDiffForClass(baseAggregate,aggregates[className]);if(diff)
snapshotDiff[className]=diff;}
var emptyBaseAggregate={ids:[],indexes:[],selfSizes:[]};for(var className in aggregates){if(className in baseSnapshotAggregates)
continue;snapshotDiff[className]=this._calculateDiffForClass(emptyBaseAggregate,aggregates[className]);}
this._snapshotDiffs[baseSnapshotId]=snapshotDiff;return snapshotDiff;},_calculateDiffForClass:function(baseAggregate,aggregate)
{var baseIds=baseAggregate.ids;var baseIndexes=baseAggregate.indexes;var baseSelfSizes=baseAggregate.selfSizes;var indexes=aggregate?aggregate.idxs:[];var i=0,l=baseIds.length;var j=0,m=indexes.length;var diff={addedCount:0,removedCount:0,addedSize:0,removedSize:0,deletedIndexes:[],addedIndexes:[]};var nodeB=this.createNode(indexes[j]);while(i<l&&j<m){var nodeAId=baseIds[i];if(nodeAId<nodeB.id()){diff.deletedIndexes.push(baseIndexes[i]);diff.removedCount++;diff.removedSize+=baseSelfSizes[i];++i;}else if(nodeAId>nodeB.id()){diff.addedIndexes.push(indexes[j]);diff.addedCount++;diff.addedSize+=nodeB.selfSize();nodeB.nodeIndex=indexes[++j];}else{++i;nodeB.nodeIndex=indexes[++j];}}
while(i<l){diff.deletedIndexes.push(baseIndexes[i]);diff.removedCount++;diff.removedSize+=baseSelfSizes[i];++i;}
while(j<m){diff.addedIndexes.push(indexes[j]);diff.addedCount++;diff.addedSize+=nodeB.selfSize();nodeB.nodeIndex=indexes[++j];}
diff.countDelta=diff.addedCount-diff.removedCount;diff.sizeDelta=diff.addedSize-diff.removedSize;if(!diff.addedCount&&!diff.removedCount)
return null;return diff;},_nodeForSnapshotObjectId:function(snapshotObjectId)
{for(var it=this._allNodes();it.hasNext();it.next()){if(it.node.id()===snapshotObjectId)
return it.node;}
return null;},nodeClassName:function(snapshotObjectId)
{var node=this._nodeForSnapshotObjectId(snapshotObjectId);if(node)
return node.className();return null;},dominatorIdsForNode:function(snapshotObjectId)
{var node=this._nodeForSnapshotObjectId(snapshotObjectId);if(!node)
return null;var result=[];while(!node.isRoot()){result.push(node.id());node.nodeIndex=node.dominatorIndex();}
return result;},_parseFilter:function(filter)
{if(!filter)
return null;var parsedFilter=eval("(function(){return "+filter+"})()");return parsedFilter.bind(this);},createEdgesProvider:function(nodeIndex,showHiddenData)
{var node=this.createNode(nodeIndex);var filter=this.containmentEdgesFilter(showHiddenData);return new WebInspector.HeapSnapshotEdgesProvider(this,filter,node.edges());},createEdgesProviderForTest:function(nodeIndex,filter)
{var node=this.createNode(nodeIndex);return new WebInspector.HeapSnapshotEdgesProvider(this,filter,node.edges());},retainingEdgesFilter:function(showHiddenData)
{return null;},containmentEdgesFilter:function(showHiddenData)
{return null;},createRetainingEdgesProvider:function(nodeIndex,showHiddenData)
{var node=this.createNode(nodeIndex);var filter=this.retainingEdgesFilter(showHiddenData);return new WebInspector.HeapSnapshotEdgesProvider(this,filter,node.retainers());},createAddedNodesProvider:function(baseSnapshotId,className)
{var snapshotDiff=this._snapshotDiffs[baseSnapshotId];var diffForClass=snapshotDiff[className];return new WebInspector.HeapSnapshotNodesProvider(this,null,diffForClass.addedIndexes);},createDeletedNodesProvider:function(nodeIndexes)
{return new WebInspector.HeapSnapshotNodesProvider(this,null,nodeIndexes);},classNodesFilter:function()
{return null;},createNodesProviderForClass:function(className,aggregatesKey)
{return new WebInspector.HeapSnapshotNodesProvider(this,this.classNodesFilter(),this.aggregates(false,aggregatesKey)[className].idxs);},createNodesProviderForDominator:function(nodeIndex)
{var node=this.createNode(nodeIndex);return new WebInspector.HeapSnapshotNodesProvider(this,null,this._dominatedNodesOfNode(node));},updateStaticData:function()
{return{nodeCount:this.nodeCount,rootNodeIndex:this._rootNodeIndex,totalSize:this.totalSize,uid:this.uid};}};WebInspector.HeapSnapshotFilteredOrderedIterator=function(iterator,filter,unfilteredIterationOrder)
{this._filter=filter;this._iterator=iterator;this._unfilteredIterationOrder=unfilteredIterationOrder;this._iterationOrder=null;this._position=0;this._currentComparator=null;this._sortedPrefixLength=0;}
WebInspector.HeapSnapshotFilteredOrderedIterator.prototype={_createIterationOrder:function()
{if(this._iterationOrder)
return;if(this._unfilteredIterationOrder&&!this._filter){this._iterationOrder=this._unfilteredIterationOrder.slice(0);this._unfilteredIterationOrder=null;return;}
this._iterationOrder=[];var iterator=this._iterator;if(!this._unfilteredIterationOrder&&!this._filter){for(iterator.rewind();iterator.hasNext();iterator.next())
this._iterationOrder.push(iterator.index());}else if(!this._unfilteredIterationOrder){for(iterator.rewind();iterator.hasNext();iterator.next()){if(this._filter(iterator.item()))
this._iterationOrder.push(iterator.index());}}else{var order=this._unfilteredIterationOrder.constructor===Array?this._unfilteredIterationOrder:this._unfilteredIterationOrder.slice(0);for(var i=0,l=order.length;i<l;++i){iterator.setIndex(order[i]);if(this._filter(iterator.item()))
this._iterationOrder.push(iterator.index());}
this._unfilteredIterationOrder=null;}},rewind:function()
{this._position=0;},hasNext:function()
{return this._position<this._iterationOrder.length;},isEmpty:function()
{if(this._iterationOrder)
return!this._iterationOrder.length;if(this._unfilteredIterationOrder&&!this._filter)
return!this._unfilteredIterationOrder.length;var iterator=this._iterator;if(!this._unfilteredIterationOrder&&!this._filter){iterator.rewind();return!iterator.hasNext();}else if(!this._unfilteredIterationOrder){for(iterator.rewind();iterator.hasNext();iterator.next())
if(this._filter(iterator.item()))
return false;}else{var order=this._unfilteredIterationOrder.constructor===Array?this._unfilteredIterationOrder:this._unfilteredIterationOrder.slice(0);for(var i=0,l=order.length;i<l;++i){iterator.setIndex(order[i]);if(this._filter(iterator.item()))
return false;}}
return true;},item:function()
{this._iterator.setIndex(this._iterationOrder[this._position]);return this._iterator.item();},get length()
{this._createIterationOrder();return this._iterationOrder.length;},next:function()
{++this._position;},serializeItemsRange:function(begin,end)
{this._createIterationOrder();if(begin>end)
throw new Error("Start position > end position: "+begin+" > "+end);if(end>=this._iterationOrder.length)
end=this._iterationOrder.length;if(this._sortedPrefixLength<end){this.sort(this._currentComparator,this._sortedPrefixLength,this._iterationOrder.length-1,end-this._sortedPrefixLength);this._sortedPrefixLength=end;}
this._position=begin;var startPosition=this._position;var count=end-begin;var result=new Array(count);for(var i=0;i<count&&this.hasNext();++i,this.next())
result[i]=this.item().serialize();result.length=i;result.totalLength=this._iterationOrder.length;result.startPosition=startPosition;result.endPosition=this._position;return result;},sortAll:function()
{this._createIterationOrder();if(this._sortedPrefixLength===this._iterationOrder.length)
return;this.sort(this._currentComparator,this._sortedPrefixLength,this._iterationOrder.length-1,this._iterationOrder.length);this._sortedPrefixLength=this._iterationOrder.length;},sortAndRewind:function(comparator)
{this._currentComparator=comparator;this._sortedPrefixLength=0;this.rewind();}}
WebInspector.HeapSnapshotFilteredOrderedIterator.prototype.createComparator=function(fieldNames)
{return{fieldName1:fieldNames[0],ascending1:fieldNames[1],fieldName2:fieldNames[2],ascending2:fieldNames[3]};}
WebInspector.HeapSnapshotEdgesProvider=function(snapshot,filter,edgesIter)
{this.snapshot=snapshot;WebInspector.HeapSnapshotFilteredOrderedIterator.call(this,edgesIter,filter);}
WebInspector.HeapSnapshotEdgesProvider.prototype={sort:function(comparator,leftBound,rightBound,count)
{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=this.snapshot.createNode();var nodeB=this.snapshot.createNode();function compareEdgeFieldName(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 compareNodeField(fieldName,ascending,indexA,indexB)
{edgeA.edgeIndex=indexA;nodeA.nodeIndex=edgeA.nodeIndex();var valueA=nodeA[fieldName]();edgeB.edgeIndex=indexB;nodeB.nodeIndex=edgeB.nodeIndex();var valueB=nodeB[fieldName]();var result=valueA<valueB?-1:(valueA>valueB?1:0);return ascending?result:-result;}
function compareEdgeAndNode(indexA,indexB){var result=compareEdgeFieldName(ascending1,indexA,indexB);if(result===0)
result=compareNodeField(fieldName2,ascending2,indexA,indexB);return result;}
function compareNodeAndEdge(indexA,indexB){var result=compareNodeField(fieldName1,ascending1,indexA,indexB);if(result===0)
result=compareEdgeFieldName(ascending2,indexA,indexB);return result;}
function compareNodeAndNode(indexA,indexB){var result=compareNodeField(fieldName1,ascending1,indexA,indexB);if(result===0)
result=compareNodeField(fieldName2,ascending2,indexA,indexB);return result;}
if(fieldName1==="!edgeName")
this._iterationOrder.sortRange(compareEdgeAndNode,leftBound,rightBound,count);else if(fieldName2==="!edgeName")
this._iterationOrder.sortRange(compareNodeAndEdge,leftBound,rightBound,count);else
this._iterationOrder.sortRange(compareNodeAndNode,leftBound,rightBound,count);},__proto__:WebInspector.HeapSnapshotFilteredOrderedIterator.prototype}
WebInspector.HeapSnapshotNodesProvider=function(snapshot,filter,nodeIndexes)
{this.snapshot=snapshot;WebInspector.HeapSnapshotFilteredOrderedIterator.call(this,snapshot._allNodes(),filter,nodeIndexes);}
WebInspector.HeapSnapshotNodesProvider.prototype={nodePosition:function(snapshotObjectId)
{this._createIterationOrder();if(this.isEmpty())
return-1;this.sortAll();var node=this.snapshot.createNode();for(var i=0;i<this._iterationOrder.length;i++){node.nodeIndex=this._iterationOrder[i];if(node.id()===snapshotObjectId)
return i;}
return-1;},sort:function(comparator,leftBound,rightBound,count)
{var fieldName1=comparator.fieldName1;var fieldName2=comparator.fieldName2;var ascending1=comparator.ascending1;var ascending2=comparator.ascending2;var nodeA=this.snapshot.createNode();var nodeB=this.snapshot.createNode();function sortByNodeField(fieldName,ascending)
{var valueOrFunctionA=nodeA[fieldName];var valueA=typeof valueOrFunctionA!=="function"?valueOrFunctionA:valueOrFunctionA.call(nodeA);var valueOrFunctionB=nodeB[fieldName];var valueB=typeof valueOrFunctionB!=="function"?valueOrFunctionB:valueOrFunctionB.call(nodeB);var result=valueA<valueB?-1:(valueA>valueB?1:0);return ascending?result:-result;}
function sortByComparator(indexA,indexB){nodeA.nodeIndex=indexA;nodeB.nodeIndex=indexB;var result=sortByNodeField(fieldName1,ascending1);if(result===0)
result=sortByNodeField(fieldName2,ascending2);return result;}
this._iterationOrder.sortRange(sortByComparator,leftBound,rightBound,count);},__proto__:WebInspector.HeapSnapshotFilteredOrderedIterator.prototype};WebInspector.HeapSnapshotLoader=function()
{this._reset();}
WebInspector.HeapSnapshotLoader.prototype={dispose:function()
{this._reset();},_reset:function()
{this._json="";this._state="find-snapshot-info";this._snapshot={};},close:function()
{if(this._json)
this._parseStringsArray();},buildSnapshot:function(constructorName)
{var constructor=WebInspector[constructorName];var result=new constructor(this._snapshot);this._reset();return result;},_parseUintArray: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);return false;}
++index;}
if(index===length){this._json="";return true;}
var nextNumber=0;var startIndex=index;while(index<length){var code=this._json.charCodeAt(index);if(char0>code||code>char9)
break;nextNumber*=10;nextNumber+=(code-char0);++index;}
if(index===length){this._json=this._json.slice(startIndex);return true;}
this._array[this._arrayIndex++]=nextNumber;}},_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);},write: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";}
case"parse-snapshot-info":{var closingBracketIndex=WebInspector.findBalancedCurlyBrackets(this._json);if(closingBracketIndex===-1)
return;this._snapshot.snapshot=(JSON.parse(this._json.slice(0,closingBracketIndex)));this._json=this._json.slice(closingBracketIndex);this._state="find-nodes";}
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);var node_fields_count=this._snapshot.snapshot.meta.node_fields.length;var nodes_length=this._snapshot.snapshot.node_count*node_fields_count;this._array=new Uint32Array(nodes_length);this._arrayIndex=0;this._state="parse-nodes";}
case"parse-nodes":{if(this._parseUintArray())
return;this._snapshot.nodes=this._array;this._state="find-edges";this._array=null;}
case"find-edges":{var edgesToken="\"edges\"";var edgesTokenIndex=this._json.indexOf(edgesToken);if(edgesTokenIndex===-1)
return;var bracketIndex=this._json.indexOf("[",edgesTokenIndex);if(bracketIndex===-1)
return;this._json=this._json.slice(bracketIndex+1);var edge_fields_count=this._snapshot.snapshot.meta.edge_fields.length;var edges_length=this._snapshot.snapshot.edge_count*edge_fields_count;this._array=new Uint32Array(edges_length);this._arrayIndex=0;this._state="parse-edges";}
case"parse-edges":{if(this._parseUintArray())
return;this._snapshot.edges=this._array;this._array=null;this._state="find-strings";}
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.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;var response={callId:data.callId};try{switch(data.disposition){case"create":{var constructorFunction=this._findFunction(data.methodName);this._objects[data.objectId]=new constructorFunction();break;}
case"dispose":{delete this._objects[data.objectId];break;}
case"getter":{var object=this._objects[data.objectId];var result=object[data.methodName];response.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;response.result=!!result;break;}
case"method":{var object=this._objects[data.objectId];response.result=object[data.methodName].apply(object,data.methodArguments);break;}}}catch(e){response.error=e.toString();response.errorCallStack=e.stack;if(data.methodName)
response.errorMethodName=data.methodName;}
this._postMessage(response);}};;WebInspector.JSHeapSnapshot=function(profile)
{this._nodeFlags={canBeQueried:1,detachedDOMTreeNode:2,pageObject:4,visitedMarkerMask:0x0ffff,visitedMarker:0x10000};WebInspector.HeapSnapshot.call(this,profile);}
WebInspector.JSHeapSnapshot.prototype={createNode:function(nodeIndex)
{return new WebInspector.JSHeapSnapshotNode(this,nodeIndex);},createEdge:function(edges,edgeIndex)
{return new WebInspector.JSHeapSnapshotEdge(this,edges,edgeIndex);},createRetainingEdge:function(retainedNodeIndex,retainerIndex)
{return new WebInspector.JSHeapSnapshotRetainerEdge(this,retainedNodeIndex,retainerIndex);},classNodesFilter:function()
{function filter(node)
{return node.isUserObject();}
return filter;},containmentEdgesFilter:function(showHiddenData)
{function filter(edge){if(edge.isInvisible())
return false;if(showHiddenData)
return true;return!edge.isHidden()&&!edge.node().isHidden();}
return filter;},retainingEdgesFilter:function(showHiddenData)
{var containmentEdgesFilter=this.containmentEdgesFilter(showHiddenData);function filter(edge)
{return containmentEdgesFilter(edge)&&!edge.node().isRoot()&&!edge.isWeak();}
return filter;},dispose:function()
{WebInspector.HeapSnapshot.prototype.dispose.call(this);delete this._flags;},_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.rewind();innerIter.hasNext();innerIter.next()){var globalObjEdge=innerIter.edge;if(!globalObjEdge.isShortcut()&&globalObjEdge.node().isHidden()&&globalObjEdge._hasStringName()&&(globalObjEdge._nameOrIndex()in propNames))
this._containmentEdges[globalObjEdge._edges._start+globalObjEdge.edgeIndex+this._edgeTypeOffset]=this._edgeInvisibleType;}}},_calculateFlags:function()
{this._flags=new Uint32Array(this.nodeCount);this._markDetachedDOMTreeNodes();this._markQueriableHeapObjects();this._markPageOwnedNodes();},_isUserRoot:function(node)
{return node.isUserRoot()||node.isDocumentDOMTreesRoot();},forEachRoot:function(action,userRootsOnly)
{function getChildNodeByName(node,name)
{for(var iter=node.edges();iter.hasNext();iter.next()){var child=iter.edge.node();if(child.name()===name)
return child;}
return null;}
function getChildNodeByLinkName(node,name)
{for(var iter=node.edges();iter.hasNext();iter.next()){var edge=iter.edge;if(edge.name()===name)
return edge.node();}
return null;}
var visitedNodes={};function doAction(node)
{var ordinal=node._ordinal();if(!visitedNodes[ordinal]){action(node);visitedNodes[ordinal]=true;}}
var gcRoots=getChildNodeByName(this.rootNode(),"(GC roots)");if(!gcRoots)
return;if(userRootsOnly){for(var iter=this.rootNode().edges();iter.hasNext();iter.next()){var node=iter.edge.node();if(node.isDocumentDOMTreesRoot())
doAction(node);else if(node.isUserRoot()){var nativeContextNode=getChildNodeByLinkName(node,"native_context");if(nativeContextNode)
doAction(nativeContextNode);else
doAction(node);}}}else{for(var iter=gcRoots.edges();iter.hasNext();iter.next()){var subRoot=iter.edge.node();for(var iter2=subRoot.edges();iter2.hasNext();iter2.next())
doAction(iter2.edge.node());doAction(subRoot);}
for(var iter=this.rootNode().edges();iter.hasNext();iter.next())
doAction(iter.edge.node())}},userObjectsMapAndFlag:function()
{return{map:this._flags,flag:this._nodeFlags.pageObject};},_flagsOfNode:function(node)
{return this._flags[node.nodeIndex/this._nodeFieldCount];},_markDetachedDOMTreeNodes:function()
{var flag=this._nodeFlags.detachedDOMTreeNode;var detachedDOMTreesRoot;for(var iter=this.rootNode().edges();iter.hasNext();iter.next()){var node=iter.edge.node();if(node.name()==="(Detached DOM trees)"){detachedDOMTreesRoot=node;break;}}
if(!detachedDOMTreesRoot)
return;var detachedDOMTreeRE=/^Detached DOM tree/;for(var iter=detachedDOMTreesRoot.edges();iter.hasNext();iter.next()){var node=iter.edge.node();if(detachedDOMTreeRE.test(node.className())){for(var edgesIter=node.edges();edgesIter.hasNext();edgesIter.next())
this._flags[edgesIter.edge.node().nodeIndex/this._nodeFieldCount]|=flag;}}},_markQueriableHeapObjects:function()
{var flag=this._nodeFlags.canBeQueried;var hiddenEdgeType=this._edgeHiddenType;var internalEdgeType=this._edgeInternalType;var invisibleEdgeType=this._edgeInvisibleType;var weakEdgeType=this._edgeWeakType;var edgeToNodeOffset=this._edgeToNodeOffset;var edgeTypeOffset=this._edgeTypeOffset;var edgeFieldsCount=this._edgeFieldsCount;var containmentEdges=this._containmentEdges;var nodes=this._nodes;var nodeCount=this.nodeCount;var nodeFieldCount=this._nodeFieldCount;var firstEdgeIndexes=this._firstEdgeIndexes;var flags=this._flags;var list=[];for(var iter=this.rootNode().edges();iter.hasNext();iter.next()){if(iter.edge.node().isUserRoot())
list.push(iter.edge.node().nodeIndex/nodeFieldCount);}
while(list.length){var nodeOrdinal=list.pop();if(flags[nodeOrdinal]&flag)
continue;flags[nodeOrdinal]|=flag;var beginEdgeIndex=firstEdgeIndexes[nodeOrdinal];var endEdgeIndex=firstEdgeIndexes[nodeOrdinal+1];for(var edgeIndex=beginEdgeIndex;edgeIndex<endEdgeIndex;edgeIndex+=edgeFieldsCount){var childNodeIndex=containmentEdges[edgeIndex+edgeToNodeOffset];var childNodeOrdinal=childNodeIndex/nodeFieldCount;if(flags[childNodeOrdinal]&flag)
continue;var type=containmentEdges[edgeIndex+edgeTypeOffset];if(type===hiddenEdgeType||type===invisibleEdgeType||type===internalEdgeType||type===weakEdgeType)
continue;list.push(childNodeOrdinal);}}},_markPageOwnedNodes:function()
{var edgeShortcutType=this._edgeShortcutType;var edgeElementType=this._edgeElementType;var edgeToNodeOffset=this._edgeToNodeOffset;var edgeTypeOffset=this._edgeTypeOffset;var edgeFieldsCount=this._edgeFieldsCount;var edgeWeakType=this._edgeWeakType;var firstEdgeIndexes=this._firstEdgeIndexes;var containmentEdges=this._containmentEdges;var containmentEdgesLength=containmentEdges.length;var nodes=this._nodes;var nodeFieldCount=this._nodeFieldCount;var nodesCount=this.nodeCount;var flags=this._flags;var flag=this._nodeFlags.pageObject;var visitedMarker=this._nodeFlags.visitedMarker;var visitedMarkerMask=this._nodeFlags.visitedMarkerMask;var markerAndFlag=visitedMarker|flag;var nodesToVisit=new Uint32Array(nodesCount);var nodesToVisitLength=0;var rootNodeOrdinal=this._rootNodeIndex/nodeFieldCount;var node=this.rootNode();for(var edgeIndex=firstEdgeIndexes[rootNodeOrdinal],endEdgeIndex=firstEdgeIndexes[rootNodeOrdinal+1];edgeIndex<endEdgeIndex;edgeIndex+=edgeFieldsCount){var edgeType=containmentEdges[edgeIndex+edgeTypeOffset];var nodeIndex=containmentEdges[edgeIndex+edgeToNodeOffset];if(edgeType===edgeElementType){node.nodeIndex=nodeIndex;if(!node.isDocumentDOMTreesRoot())
continue;}else if(edgeType!==edgeShortcutType)
continue;var nodeOrdinal=nodeIndex/nodeFieldCount;nodesToVisit[nodesToVisitLength++]=nodeOrdinal;flags[nodeOrdinal]|=visitedMarker;}
while(nodesToVisitLength){var nodeOrdinal=nodesToVisit[--nodesToVisitLength];flags[nodeOrdinal]|=flag;flags[nodeOrdinal]&=visitedMarkerMask;var beginEdgeIndex=firstEdgeIndexes[nodeOrdinal];var endEdgeIndex=firstEdgeIndexes[nodeOrdinal+1];for(var edgeIndex=beginEdgeIndex;edgeIndex<endEdgeIndex;edgeIndex+=edgeFieldsCount){var childNodeIndex=containmentEdges[edgeIndex+edgeToNodeOffset];var childNodeOrdinal=childNodeIndex/nodeFieldCount;if(flags[childNodeOrdinal]&markerAndFlag)
continue;var type=containmentEdges[edgeIndex+edgeTypeOffset];if(type===edgeWeakType)
continue;nodesToVisit[nodesToVisitLength++]=childNodeOrdinal;flags[childNodeOrdinal]|=visitedMarker;}}},__proto__:WebInspector.HeapSnapshot.prototype};WebInspector.JSHeapSnapshotNode=function(snapshot,nodeIndex)
{WebInspector.HeapSnapshotNode.call(this,snapshot,nodeIndex)}
WebInspector.JSHeapSnapshotNode.prototype={canBeQueried:function()
{var flags=this._snapshot._flagsOfNode(this);return!!(flags&this._snapshot._nodeFlags.canBeQueried);},isUserObject:function()
{var flags=this._snapshot._flagsOfNode(this);return!!(flags&this._snapshot._nodeFlags.pageObject);},className:function()
{var type=this.type();switch(type){case"hidden":return"(system)";case"object":case"native":return this.name();case"code":return"(compiled code)";default:return"("+type+")";}},classIndex:function()
{var snapshot=this._snapshot;var nodes=snapshot._nodes;var type=nodes[this.nodeIndex+snapshot._nodeTypeOffset];;if(type===snapshot._nodeObjectType||type===snapshot._nodeNativeType)
return nodes[this.nodeIndex+snapshot._nodeNameOffset];return-1-type;},id:function()
{var snapshot=this._snapshot;return snapshot._nodes[this.nodeIndex+snapshot._nodeIdOffset];},isHidden:function()
{return this._type()===this._snapshot._nodeHiddenType;},isSynthetic:function()
{return this._type()===this._snapshot._nodeSyntheticType;},isUserRoot:function()
{return!this.isSynthetic();},isDocumentDOMTreesRoot:function()
{return this.isSynthetic()&&this.name()==="(Document DOM trees)";},serialize:function()
{var result=WebInspector.HeapSnapshotNode.prototype.serialize.call(this);var flags=this._snapshot._flagsOfNode(this);if(flags&this._snapshot._nodeFlags.canBeQueried)
result.canBeQueried=true;if(flags&this._snapshot._nodeFlags.detachedDOMTreeNode)
result.detachedDOMTreeNode=true;return result;},__proto__:WebInspector.HeapSnapshotNode.prototype};WebInspector.JSHeapSnapshotEdge=function(snapshot,edges,edgeIndex)
{WebInspector.HeapSnapshotEdge.call(this,snapshot,edges,edgeIndex);}
WebInspector.JSHeapSnapshotEdge.prototype={clone:function()
{return new WebInspector.JSHeapSnapshotEdge(this._snapshot,this._edges,this.edgeIndex);},hasStringName:function()
{if(!this.isShortcut())
return this._hasStringName();return isNaN(parseInt(this._name(),10));},isElement:function()
{return this._type()===this._snapshot._edgeElementType;},isHidden:function()
{return this._type()===this._snapshot._edgeHiddenType;},isWeak:function()
{return this._type()===this._snapshot._edgeWeakType;},isInternal:function()
{return this._type()===this._snapshot._edgeInternalType;},isInvisible:function()
{return this._type()===this._snapshot._edgeInvisibleType;},isShortcut:function()
{return this._type()===this._snapshot._edgeShortcutType;},name:function()
{if(!this.isShortcut())
return this._name();var numName=parseInt(this._name(),10);return isNaN(numName)?this._name():numName;},toString:function()
{var name=this.name();switch(this.type()){case"context":return"->"+name;case"element":return"["+name+"]";case"weak":return"[["+name+"]]";case"property":return name.indexOf(" ")===-1?"."+name:"[\""+name+"\"]";case"shortcut":if(typeof name==="string")
return name.indexOf(" ")===-1?"."+name:"[\""+name+"\"]";else
return"["+name+"]";case"internal":case"hidden":case"invisible":return"{"+name+"}";};return"?"+name+"?";},_hasStringName:function()
{return!this.isElement()&&!this.isHidden()&&!this.isWeak();},_name:function()
{return this._hasStringName()?this._snapshot._strings[this._nameOrIndex()]:this._nameOrIndex();},_nameOrIndex:function()
{return this._edges.item(this.edgeIndex+this._snapshot._edgeNameOffset);},_type:function()
{return this._edges.item(this.edgeIndex+this._snapshot._edgeTypeOffset);},__proto__:WebInspector.HeapSnapshotEdge.prototype};WebInspector.JSHeapSnapshotRetainerEdge=function(snapshot,retainedNodeIndex,retainerIndex)
{WebInspector.HeapSnapshotRetainerEdge.call(this,snapshot,retainedNodeIndex,retainerIndex);}
WebInspector.JSHeapSnapshotRetainerEdge.prototype={clone:function()
{return new WebInspector.JSHeapSnapshotRetainerEdge(this._snapshot,this._retainedNodeIndex,this.retainerIndex());},isHidden:function()
{return this._edge().isHidden();},isInternal:function()
{return this._edge().isInternal();},isInvisible:function()
{return this._edge().isInvisible();},isShortcut:function()
{return this._edge().isShortcut();},isWeak:function()
{return this._edge().isWeak();},__proto__:WebInspector.HeapSnapshotRetainerEdge.prototype};WebInspector.OutputStreamDelegate=function()
{}
WebInspector.OutputStreamDelegate.prototype={onTransferStarted:function(){},onTransferFinished:function(){},onChunkTransferred:function(reader){},onError:function(reader,event){},}
WebInspector.OutputStream=function()
{}
WebInspector.OutputStream.prototype={write:function(data,callback){},close:function(){}}
WebInspector.ChunkedReader=function()
{}
WebInspector.ChunkedReader.prototype={fileSize:function(){},loadedSize:function(){},fileName:function(){},cancel:function(){}}
WebInspector.ChunkedFileReader=function(file,chunkSize,delegate)
{this._file=file;this._fileSize=file.size;this._loadedSize=0;this._chunkSize=chunkSize;this._delegate=delegate;this._isCanceled=false;}
WebInspector.ChunkedFileReader.prototype={start:function(output)
{this._output=output;this._reader=new FileReader();this._reader.onload=this._onChunkLoaded.bind(this);this._reader.onerror=this._delegate.onError.bind(this._delegate,this);this._delegate.onTransferStarted();this._loadChunk();},cancel:function()
{this._isCanceled=true;},loadedSize:function()
{return this._loadedSize;},fileSize:function()
{return this._fileSize;},fileName:function()
{return this._file.name;},_onChunkLoaded:function(event)
{if(this._isCanceled)
return;if(event.target.readyState!==FileReader.DONE)
return;var data=event.target.result;this._loadedSize+=data.length;this._output.write(data);if(this._isCanceled)
return;this._delegate.onChunkTransferred(this);if(this._loadedSize===this._fileSize){this._file=null;this._reader=null;this._output.close();this._delegate.onTransferFinished();return;}
this._loadChunk();},_loadChunk:function()
{var chunkStart=this._loadedSize;var chunkEnd=Math.min(this._fileSize,chunkStart+this._chunkSize)
var nextPart=this._file.slice(chunkStart,chunkEnd);this._reader.readAsText(nextPart);}}
WebInspector.ChunkedXHRReader=function(url,delegate)
{this._url=url;this._delegate=delegate;this._fileSize=0;this._loadedSize=0;this._isCanceled=false;}
WebInspector.ChunkedXHRReader.prototype={start:function(output)
{this._output=output;this._xhr=new XMLHttpRequest();this._xhr.open("GET",this._url,true);this._xhr.onload=this._onLoad.bind(this);this._xhr.onprogress=this._onProgress.bind(this);this._xhr.onerror=this._delegate.onError.bind(this._delegate,this);this._xhr.send(null);this._delegate.onTransferStarted();},cancel:function()
{this._isCanceled=true;this._xhr.abort();},loadedSize:function()
{return this._loadedSize;},fileSize:function()
{return this._fileSize;},fileName:function()
{return this._url;},_onProgress:function(event)
{if(this._isCanceled)
return;if(event.lengthComputable)
this._fileSize=event.total;var data=this._xhr.responseText.substring(this._loadedSize);if(!data.length)
return;this._loadedSize+=data.length;this._output.write(data);if(this._isCanceled)
return;this._delegate.onChunkTransferred(this);},_onLoad:function(event)
{this._onProgress(event);if(this._isCanceled)
return;this._output.close();this._delegate.onTransferFinished();}}
WebInspector.createFileSelectorElement=function(callback){var fileSelectorElement=document.createElement("input");fileSelectorElement.type="file";fileSelectorElement.style.display="none";fileSelectorElement.setAttribute("tabindex",-1);fileSelectorElement.onchange=onChange;function onChange(event)
{callback(fileSelectorElement.files[0]);};return fileSelectorElement;}
WebInspector.findBalancedCurlyBrackets=function(source,startIndex,lastIndex){lastIndex=lastIndex||source.length;startIndex=startIndex||0;var counter=0;var inString=false;for(var index=startIndex;index<lastIndex;++index){var character=source[index];if(inString){if(character==="\\")
++index;else if(character==="\"")
inString=false;}else{if(character==="\"")
inString=true;else if(character==="{")
++counter;else if(character==="}"){if(--counter===0)
return index+1;}}}
return-1;}
WebInspector.FileOutputStream=function()
{}
WebInspector.FileOutputStream.prototype={open:function(fileName,callback)
{this._closed=false;this._writeCallbacks=[];this._fileName=fileName;function callbackWrapper()
{WebInspector.fileManager.removeEventListener(WebInspector.FileManager.EventTypes.SavedURL,callbackWrapper,this);WebInspector.fileManager.addEventListener(WebInspector.FileManager.EventTypes.AppendedToURL,this._onAppendDone,this);callback(this);}
WebInspector.fileManager.addEventListener(WebInspector.FileManager.EventTypes.SavedURL,callbackWrapper,this);WebInspector.fileManager.save(this._fileName,"",true);},write:function(data,callback)
{this._writeCallbacks.push(callback);WebInspector.fileManager.append(this._fileName,data);},close:function()
{this._closed=true;if(this._writeCallbacks.length)
return;WebInspector.fileManager.removeEventListener(WebInspector.FileManager.EventTypes.AppendedToURL,this._onAppendDone,this);WebInspector.fileManager.close(this._fileName);},_onAppendDone:function(event)
{if(event.data!==this._fileName)
return;if(!this._writeCallbacks.length){if(this._closed){WebInspector.fileManager.removeEventListener(WebInspector.FileManager.EventTypes.AppendedToURL,this._onAppendDone,this);WebInspector.fileManager.close(this._fileName);}
return;}
var callback=this._writeCallbacks.shift();if(callback)
callback(this);}};Object.isEmpty=function(obj)
{for(var i in obj)
return false;return true;}
Object.values=function(obj)
{var result=Object.keys(obj);var length=result.length;for(var i=0;i<length;++i)
result[i]=obj[result[i]];return result;}
String.prototype.findAll=function(string)
{var matches=[];var i=this.indexOf(string);while(i!==-1){matches.push(i);i=this.indexOf(string,i+string.length);}
return matches;}
String.prototype.lineEndings=function()
{if(!this._lineEndings){this._lineEndings=this.findAll("\n");this._lineEndings.push(this.length);}
return this._lineEndings;}
String.prototype.escapeCharacters=function(chars)
{var foundChar=false;for(var i=0;i<chars.length;++i){if(this.indexOf(chars.charAt(i))!==-1){foundChar=true;break;}}
if(!foundChar)
return String(this);var result="";for(var i=0;i<this.length;++i){if(chars.indexOf(this.charAt(i))!==-1)
result+="\\";result+=this.charAt(i);}
return result;}
String.regexSpecialCharacters=function()
{return"^[]{}()\\.$*+?|-,";}
String.prototype.escapeForRegExp=function()
{return this.escapeCharacters(String.regexSpecialCharacters());}
String.prototype.escapeHTML=function()
{return this.replace(/&/g,"&amp;").replace(/</g,"&lt;").replace(/>/g,"&gt;").replace(/"/g,"&quot;");}
String.prototype.collapseWhitespace=function()
{return this.replace(/[\s\xA0]+/g," ");}
String.prototype.trimMiddle=function(maxLength)
{if(this.length<=maxLength)
return String(this);var leftHalf=maxLength>>1;var rightHalf=maxLength-leftHalf-1;return this.substr(0,leftHalf)+"\u2026"+this.substr(this.length-rightHalf,rightHalf);}
String.prototype.trimEnd=function(maxLength)
{if(this.length<=maxLength)
return String(this);return this.substr(0,maxLength-1)+"\u2026";}
String.prototype.trimURL=function(baseURLDomain)
{var result=this.replace(/^(https|http|file):\/\//i,"");if(baseURLDomain)
result=result.replace(new RegExp("^"+baseURLDomain.escapeForRegExp(),"i"),"");return result;}
String.prototype.toTitleCase=function()
{return this.substring(0,1).toUpperCase()+this.substring(1);}
String.prototype.compareTo=function(other)
{if(this>other)
return 1;if(this<other)
return-1;return 0;}
function sanitizeHref(href)
{return href&&href.trim().toLowerCase().startsWith("javascript:")?"":href;}
String.prototype.removeURLFragment=function()
{var fragmentIndex=this.indexOf("#");if(fragmentIndex==-1)
fragmentIndex=this.length;return this.substring(0,fragmentIndex);}
String.prototype.startsWith=function(substring)
{return!this.lastIndexOf(substring,0);}
String.prototype.endsWith=function(substring)
{return this.indexOf(substring,this.length-substring.length)!==-1;}
String.naturalOrderComparator=function(a,b)
{var chunk=/^\d+|^\D+/;var chunka,chunkb,anum,bnum;while(1){if(a){if(!b)
return 1;}else{if(b)
return-1;else
return 0;}
chunka=a.match(chunk)[0];chunkb=b.match(chunk)[0];anum=!isNaN(chunka);bnum=!isNaN(chunkb);if(anum&&!bnum)
return-1;if(bnum&&!anum)
return 1;if(anum&&bnum){var diff=chunka-chunkb;if(diff)
return diff;if(chunka.length!==chunkb.length){if(!+chunka&&!+chunkb)
return chunka.length-chunkb.length;else
return chunkb.length-chunka.length;}}else if(chunka!==chunkb)
return(chunka<chunkb)?-1:1;a=a.substring(chunka.length);b=b.substring(chunkb.length);}}
Number.constrain=function(num,min,max)
{if(num<min)
num=min;else if(num>max)
num=max;return num;}
Number.gcd=function(a,b)
{if(b===0)
return a;else
return Number.gcd(b,a%b);}
Number.toFixedIfFloating=function(value)
{if(!value||isNaN(value))
return value;var number=Number(value);return number%1?number.toFixed(3):String(number);}
Date.prototype.toISO8601Compact=function()
{function leadZero(x)
{return(x>9?"":"0")+x;}
return this.getFullYear()+
leadZero(this.getMonth()+1)+
leadZero(this.getDate())+"T"+
leadZero(this.getHours())+
leadZero(this.getMinutes())+
leadZero(this.getSeconds());}
Object.defineProperty(Array.prototype,"remove",{value:function(value,onlyFirst)
{if(onlyFirst){var index=this.indexOf(value);if(index!==-1)
this.splice(index,1);return;}
var length=this.length;for(var i=0;i<length;++i){if(this[i]===value)
this.splice(i,1);}}});Object.defineProperty(Array.prototype,"keySet",{value:function()
{var keys={};for(var i=0;i<this.length;++i)
keys[this[i]]=true;return keys;}});Object.defineProperty(Array.prototype,"rotate",{value:function(index)
{var result=[];for(var i=index;i<index+this.length;++i)
result.push(this[i%this.length]);return result;}});Object.defineProperty(Uint32Array.prototype,"sort",{value:Array.prototype.sort});(function(){var partition={value:function(comparator,left,right,pivotIndex)
{function swap(array,i1,i2)
{var temp=array[i1];array[i1]=array[i2];array[i2]=temp;}
var pivotValue=this[pivotIndex];swap(this,right,pivotIndex);var storeIndex=left;for(var i=left;i<right;++i){if(comparator(this[i],pivotValue)<0){swap(this,storeIndex,i);++storeIndex;}}
swap(this,right,storeIndex);return storeIndex;}};Object.defineProperty(Array.prototype,"partition",partition);Object.defineProperty(Uint32Array.prototype,"partition",partition);var sortRange={value:function(comparator,leftBound,rightBound,k)
{function quickSortFirstK(array,comparator,left,right,k)
{if(right<=left)
return;var pivotIndex=Math.floor(Math.random()*(right-left))+left;var pivotNewIndex=array.partition(comparator,left,right,pivotIndex);quickSortFirstK(array,comparator,left,pivotNewIndex-1,k);if(pivotNewIndex<left+k-1)
quickSortFirstK(array,comparator,pivotNewIndex+1,right,left+k-1-pivotNewIndex);}
if(leftBound===0&&rightBound===(this.length-1)&&k>=this.length)
this.sort(comparator);else
quickSortFirstK(this,comparator,leftBound,rightBound,k);return this;}}
Object.defineProperty(Array.prototype,"sortRange",sortRange);Object.defineProperty(Uint32Array.prototype,"sortRange",sortRange);})();Object.defineProperty(Array.prototype,"qselect",{value:function(k,comparator)
{if(k<0||k>=this.length)
return;if(!comparator)
comparator=function(a,b){return a-b;}
var low=0;var high=this.length-1;for(;;){var pivotPosition=this.partition(comparator,low,high,Math.floor((high+low)/2));if(pivotPosition===k)
return this[k];else if(pivotPosition>k)
high=pivotPosition-1;else
low=pivotPosition+1;}}});Object.defineProperty(Array.prototype,"lowerBound",{value:function(object,comparator)
{function defaultComparator(a,b)
{return a<b?-1:(a>b?1:0);}
comparator=comparator||defaultComparator;var l=0;var r=this.length;while(l<r){var m=(l+r)>>1;if(comparator(object,this[m])>0)
l=m+1;else
r=m;}
return r;}});Object.defineProperty(Array.prototype,"upperBound",{value:function(object,comparator)
{function defaultComparator(a,b)
{return a<b?-1:(a>b?1:0);}
comparator=comparator||defaultComparator;var l=0;var r=this.length;while(l<r){var m=(l+r)>>1;if(comparator(object,this[m])>=0)
l=m+1;else
r=m;}
return r;}});Object.defineProperty(Array.prototype,"binaryIndexOf",{value:function(value,comparator)
{var index=this.lowerBound(value,comparator);return index<this.length&&comparator(value,this[index])===0?index:-1;}});Object.defineProperty(Array.prototype,"select",{value:function(field)
{var result=new Array(this.length);for(var i=0;i<this.length;++i)
result[i]=this[i][field];return result;}});Object.defineProperty(Array.prototype,"peekLast",{value:function()
{return this[this.length-1];}});function insertionIndexForObjectInListSortedByFunction(object,list,comparator,insertionIndexAfter)
{if(insertionIndexAfter)
return list.upperBound(object,comparator);else
return list.lowerBound(object,comparator);}
String.sprintf=function(format,var_arg)
{return String.vsprintf(format,Array.prototype.slice.call(arguments,1));}
String.tokenizeFormatString=function(format,formatters)
{var tokens=[];var substitutionIndex=0;function addStringToken(str)
{tokens.push({type:"string",value:str});}
function addSpecifierToken(specifier,precision,substitutionIndex)
{tokens.push({type:"specifier",specifier:specifier,precision:precision,substitutionIndex:substitutionIndex});}
function isDigit(c)
{return!!/[0-9]/.exec(c);}
var index=0;for(var precentIndex=format.indexOf("%",index);precentIndex!==-1;precentIndex=format.indexOf("%",index)){addStringToken(format.substring(index,precentIndex));index=precentIndex+1;if(isDigit(format[index])){var number=parseInt(format.substring(index),10);while(isDigit(format[index]))
++index;if(number>0&&format[index]==="$"){substitutionIndex=(number-1);++index;}}
var precision=-1;if(format[index]==="."){++index;precision=parseInt(format.substring(index),10);if(isNaN(precision))
precision=0;while(isDigit(format[index]))
++index;}
if(!(format[index]in formatters)){addStringToken(format.substring(precentIndex,index+1));++index;continue;}
addSpecifierToken(format[index],precision,substitutionIndex);++substitutionIndex;++index;}
addStringToken(format.substring(index));return tokens;}
String.standardFormatters={d:function(substitution)
{return!isNaN(substitution)?substitution:0;},f:function(substitution,token)
{if(substitution&&token.precision>-1)
substitution=substitution.toFixed(token.precision);return!isNaN(substitution)?substitution:(token.precision>-1?Number(0).toFixed(token.precision):0);},s:function(substitution)
{return substitution;}}
String.vsprintf=function(format,substitutions)
{return String.format(format,substitutions,String.standardFormatters,"",function(a,b){return a+b;}).formattedResult;}
String.format=function(format,substitutions,formatters,initialValue,append)
{if(!format||!substitutions||!substitutions.length)
return{formattedResult:append(initialValue,format),unusedSubstitutions:substitutions};function prettyFunctionName()
{return"String.format(\""+format+"\", \""+substitutions.join("\", \"")+"\")";}
function warn(msg)
{console.warn(prettyFunctionName()+": "+msg);}
function error(msg)
{console.error(prettyFunctionName()+": "+msg);}
var result=initialValue;var tokens=String.tokenizeFormatString(format,formatters);var usedSubstitutionIndexes={};for(var i=0;i<tokens.length;++i){var token=tokens[i];if(token.type==="string"){result=append(result,token.value);continue;}
if(token.type!=="specifier"){error("Unknown token type \""+token.type+"\" found.");continue;}
if(token.substitutionIndex>=substitutions.length){error("not enough substitution arguments. Had "+substitutions.length+" but needed "+(token.substitutionIndex+1)+", so substitution was skipped.");result=append(result,"%"+(token.precision>-1?token.precision:"")+token.specifier);continue;}
usedSubstitutionIndexes[token.substitutionIndex]=true;if(!(token.specifier in formatters)){warn("unsupported format character \u201C"+token.specifier+"\u201D. Treating as a string.");result=append(result,substitutions[token.substitutionIndex]);continue;}
result=append(result,formatters[token.specifier](substitutions[token.substitutionIndex],token));}
var unusedSubstitutions=[];for(var i=0;i<substitutions.length;++i){if(i in usedSubstitutionIndexes)
continue;unusedSubstitutions.push(substitutions[i]);}
return{formattedResult:result,unusedSubstitutions:unusedSubstitutions};}
function createSearchRegex(query,caseSensitive,isRegex)
{var regexFlags=caseSensitive?"g":"gi";var regexObject;if(isRegex){try{regexObject=new RegExp(query,regexFlags);}catch(e){}}
if(!regexObject)
regexObject=createPlainTextSearchRegex(query,regexFlags);return regexObject;}
function createPlainTextSearchRegex(query,flags)
{var regexSpecialCharacters=String.regexSpecialCharacters();var regex="";for(var i=0;i<query.length;++i){var c=query.charAt(i);if(regexSpecialCharacters.indexOf(c)!=-1)
regex+="\\";regex+=c;}
return new RegExp(regex,flags||"");}
function countRegexMatches(regex,content)
{var text=content;var result=0;var match;while(text&&(match=regex.exec(text))){if(match[0].length>0)
++result;text=text.substring(match.index+1);}
return result;}
function numberToStringWithSpacesPadding(value,symbolsCount)
{var numberString=value.toString();var paddingLength=Math.max(0,symbolsCount-numberString.length);var paddingString=Array(paddingLength+1).join("\u00a0");return paddingString+numberString;}
var createObjectIdentifier=function()
{return"_"+ ++createObjectIdentifier._last;}
createObjectIdentifier._last=0;var Set=function()
{this._set={};this._size=0;}
Set.prototype={add:function(item)
{var objectIdentifier=item.__identifier;if(!objectIdentifier){objectIdentifier=createObjectIdentifier();item.__identifier=objectIdentifier;}
if(!this._set[objectIdentifier])
++this._size;this._set[objectIdentifier]=item;},remove:function(item)
{if(this._set[item.__identifier]){--this._size;delete this._set[item.__identifier];return true;}
return false;},items:function()
{var result=new Array(this._size);var i=0;for(var objectIdentifier in this._set)
result[i++]=this._set[objectIdentifier];return result;},hasItem:function(item)
{return!!this._set[item.__identifier];},size:function()
{return this._size;},clear:function()
{this._set={};this._size=0;}}
var Map=function()
{this._map={};this._size=0;}
Map.prototype={put:function(key,value)
{var objectIdentifier=key.__identifier;if(!objectIdentifier){objectIdentifier=createObjectIdentifier();key.__identifier=objectIdentifier;}
if(!this._map[objectIdentifier])
++this._size;this._map[objectIdentifier]=[key,value];},remove:function(key)
{var result=this._map[key.__identifier];if(!result)
return undefined;--this._size;delete this._map[key.__identifier];return result[1];},keys:function()
{return this._list(0);},values:function()
{return this._list(1);},_list:function(index)
{var result=new Array(this._size);var i=0;for(var objectIdentifier in this._map)
result[i++]=this._map[objectIdentifier][index];return result;},get:function(key)
{var entry=this._map[key.__identifier];return entry?entry[1]:undefined;},contains:function(key)
{var entry=this._map[key.__identifier];return!!entry;},size:function()
{return this._size;},clear:function()
{this._map={};this._size=0;}}
var StringMap=function()
{this._map={};this._size=0;}
StringMap.prototype={put:function(key,value)
{if(key==="__proto__"){if(!this._hasProtoKey){++this._size;this._hasProtoKey=true;}
this._protoValue=value;return;}
if(!Object.prototype.hasOwnProperty.call(this._map,key))
++this._size;this._map[key]=value;},remove:function(key)
{var result;if(key==="__proto__"){if(!this._hasProtoKey)
return undefined;--this._size;delete this._hasProtoKey;result=this._protoValue;delete this._protoValue;return result;}
if(!Object.prototype.hasOwnProperty.call(this._map,key))
return undefined;--this._size;result=this._map[key];delete this._map[key];return result;},keys:function()
{var result=Object.keys(this._map)||[];if(this._hasProtoKey)
result.push("__proto__");return result;},values:function()
{var result=Object.values(this._map);if(this._hasProtoKey)
result.push(this._protoValue);return result;},get:function(key)
{if(key==="__proto__")
return this._protoValue;if(!Object.prototype.hasOwnProperty.call(this._map,key))
return undefined;return this._map[key];},contains:function(key)
{var result;if(key==="__proto__")
return this._hasProtoKey;return Object.prototype.hasOwnProperty.call(this._map,key);},size:function()
{return this._size;},clear:function()
{this._map={};this._size=0;delete this._hasProtoKey;delete this._protoValue;}}
function loadXHR(url,async,callback)
{function onReadyStateChanged()
{if(xhr.readyState!==XMLHttpRequest.DONE)
return;if(xhr.status===200){callback(xhr.responseText);return;}
callback(null);}
var xhr=new XMLHttpRequest();xhr.open("GET",url,async);if(async)
xhr.onreadystatechange=onReadyStateChanged;xhr.send(null);if(!async){if(xhr.status===200)
return xhr.responseText;return null;}
return null;}
function StringPool()
{this.reset();}
StringPool.prototype={intern:function(string)
{if(string==="__proto__")
return"__proto__";var result=this._strings[string];if(result===undefined){this._strings[string]=string;result=string;}
return result;},reset:function()
{this._strings=Object.create(null);},internObjectStrings:function(obj,depthLimit)
{if(typeof depthLimit!=="number")
depthLimit=100;else if(--depthLimit<0)
throw"recursion depth limit reached in StringPool.deepIntern(), perhaps attempting to traverse cyclical references?";for(var field in obj){switch(typeof obj[field]){case"string":obj[field]=this.intern(obj[field]);break;case"object":this.internObjectStrings(obj[field],depthLimit);break;}}}}
var _importedScripts={};function importScript(scriptName)
{if(_importedScripts[scriptName])
return;var xhr=new XMLHttpRequest();_importedScripts[scriptName]=true;if(window.flattenImports)
scriptName=scriptName.split("/").reverse()[0];xhr.open("GET",scriptName,false);xhr.send(null);if(!xhr.responseText)
throw"empty response arrived for script '"+scriptName+"'";var sourceURL=WebInspector.ParsedURL.completeURL(window.location.href,scriptName);window.eval(xhr.responseText+"\n//# sourceURL="+sourceURL);}
var loadScript=importScript;function CallbackBarrier()
{this._pendingIncomingCallbacksCount=0;}
CallbackBarrier.prototype={createCallback:function(userCallback)
{console.assert(!this._outgoingCallback,"CallbackBarrier.createCallback() is called after CallbackBarrier.callWhenDone()");++this._pendingIncomingCallbacksCount;return this._incomingCallback.bind(this,userCallback);},callWhenDone:function(callback)
{console.assert(!this._outgoingCallback,"CallbackBarrier.callWhenDone() is called multiple times");this._outgoingCallback=callback;if(!this._pendingIncomingCallbacksCount)
this._outgoingCallback();},_incomingCallback:function(userCallback)
{console.assert(this._pendingIncomingCallbacksCount>0);if(userCallback){var args=Array.prototype.slice.call(arguments,1);userCallback.apply(null,args);}
if(!--this._pendingIncomingCallbacksCount&&this._outgoingCallback)
this._outgoingCallback();}};function postMessageWrapper(message)
{postMessage(message);}
WebInspector.WorkerConsole=function()
{}
WebInspector.WorkerConsole.prototype={log:function(var_args)
{this._postMessage("log",Array.prototype.slice.call(arguments));},error:function(var_args)
{this._postMessage("error",Array.prototype.slice.call(arguments));},info:function(var_args)
{this._postMessage("info",Array.prototype.slice.call(arguments));},trace:function()
{this.log(new Error().stack);},_postMessage:function(method,args)
{var rawMessage={object:"console",method:method,arguments:args};postMessageWrapper(rawMessage);}};var dispatcher=new WebInspector.HeapSnapshotWorkerDispatcher(this,postMessageWrapper);addEventListener("message",dispatcher.dispatchMessage.bind(dispatcher),false);console=new WebInspector.WorkerConsole();