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Text File | 2012-12-14 | 80.0 KB | 3,270 lines |
-
-
-
- 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()
- {
- 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;
- },
-
- node: function()
- {
- return new WebInspector.HeapSnapshotNode(this._snapshot, this.nodeIndex());
- },
-
- nodeIndex: function()
- {
- return this._edges.item(this.edgeIndex + this._snapshot._edgeToNodeOffset);
- },
-
- rawEdges: function()
- {
- return this._edges;
- },
-
- 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 + "?";
- },
-
- type: function()
- {
- return this._snapshot._edgeTypes[this._type()];
- },
-
- _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);
- }
- };
-
-
- 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;
- },
-
- 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();
- },
-
- isElement: function()
- {
- return this._edge().isElement();
- },
-
- 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();
- },
-
- 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 = new WebInspector.HeapSnapshotNode(this._snapshot, this._nodeIndex);
- return this._nodeInstance;
- },
-
- _edge: function()
- {
- if (!this._edgeInstance) {
- var edgeIndex = this._globalEdgeIndex - this._node()._edgeIndexesStart();
- this._edgeInstance = new WebInspector.HeapSnapshotEdge(this._snapshot, this._node().rawEdges(), edgeIndex);
- }
- return this._edgeInstance;
- },
-
- toString: function()
- {
- return this._edge().toString();
- },
-
- type: function()
- {
- return this._edge().type();
- }
- }
-
-
- WebInspector.HeapSnapshotRetainerEdgeIterator = function(retainer)
- {
- this.retainer = retainer;
- }
-
- WebInspector.HeapSnapshotRetainerEdgeIterator.prototype = {
- first: 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 = {
- canBeQueried: function()
- {
- var flags = this._snapshot._flagsOfNode(this);
- return !!(flags & this._snapshot._nodeFlags.canBeQueried);
- },
-
- isPageObject: function()
- {
- var flags = this._snapshot._flagsOfNode(this);
- return !!(flags & this._snapshot._nodeFlags.pageObject);
- },
-
- distanceToWindow: function()
- {
- return this._snapshot._distancesToWindow[this.nodeIndex / this._snapshot._nodeFieldCount];
- },
-
- className: function()
- {
- var type = this.type();
- switch (type) {
- case "hidden":
- return WebInspector.UIString("(system)");
- case "object":
- case "native":
- return this.name();
- case "code":
- return WebInspector.UIString("(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;
- },
-
- dominatorIndex: function()
- {
- var nodeFieldCount = this._snapshot._nodeFieldCount;
- return this._snapshot._dominatorsTree[this.nodeIndex / this._snapshot._nodeFieldCount] * nodeFieldCount;
- },
-
- edges: function()
- {
- return new WebInspector.HeapSnapshotEdgeIterator(new WebInspector.HeapSnapshotEdge(this._snapshot, this.rawEdges()));
- },
-
- edgesCount: function()
- {
- return (this._edgeIndexesEnd() - this._edgeIndexesStart()) / this._snapshot._edgeFieldsCount;
- },
-
- flags: function()
- {
- return this._snapshot._flagsOfNode(this);
- },
-
- id: function()
- {
- var snapshot = this._snapshot;
- return snapshot._nodes[this.nodeIndex + snapshot._nodeIdOffset];
- },
-
- isHidden: function()
- {
- return this._type() === this._snapshot._nodeHiddenType;
- },
-
- isNative: function()
- {
- return this._type() === this._snapshot._nodeNativeType;
- },
-
- isSynthetic: function()
- {
- return this._type() === this._snapshot._nodeSyntheticType;
- },
-
- isWindow: function()
- {
- const windowRE = /^Window/;
- return windowRE.test(this.name());
- },
-
- isDetachedDOMTreesRoot: function()
- {
- return this.name() === "(Detached DOM trees)";
- },
-
- isDetachedDOMTree: function()
- {
- const detachedDOMTreeRE = /^Detached DOM tree/;
- return detachedDOMTreeRE.test(this.className());
- },
-
- 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(new WebInspector.HeapSnapshotRetainerEdge(this._snapshot, this.nodeIndex, 0));
- },
-
- selfSize: function()
- {
- var snapshot = this._snapshot;
- return snapshot._nodes[this.nodeIndex + snapshot._nodeSelfSizeOffset];
- },
-
- type: function()
- {
- return this._snapshot._nodeTypes[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 = {
- first: 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._snapshotDiffs = {};
- this._aggregatesForDiff = null;
-
- this._init();
- }
-
-
- function HeapSnapshotMetainfo()
- {
-
- this.node_fields = [];
- this.node_types = [];
- this.edge_fields = [];
- this.edge_types = [];
-
-
- 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._rootNodeIndex = 0;
-
- 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._nodeFlags = {
- canBeQueried: 1,
- detachedDOMTreeNode: 2,
- pageObject: 4,
-
- visitedMarkerMask: 0x0ffff,
- visitedMarker: 0x10000
- };
-
- this.nodeCount = this._nodes.length / this._nodeFieldCount;
- this._edgeCount = this._containmentEdges.length / this._edgeFieldsCount;
-
- this._buildEdgeIndexes();
- this._markInvisibleEdges();
- this._buildRetainers();
- this._calculateFlags();
- this._calculateObjectToWindowDistance();
- var result = this._buildPostOrderIndex();
-
- this._dominatorsTree = this._buildDominatorTree(result.postOrderIndex2NodeOrdinal, result.nodeOrdinal2PostOrderIndex);
- this._calculateRetainedSizes(result.postOrderIndex2NodeOrdinal);
- this._buildDominatedNodes();
- },
-
- _buildEdgeIndexes: function()
- {
-
- if (this._nodeEdgeCountOffset === -1) {
- var nodes = this._nodes;
- var nodeCount = this.nodeCount;
- var firstEdgeIndexes = this._firstEdgeIndexes = new Uint32Array(nodeCount + 1);
- var nodeFieldCount = this._nodeFieldCount;
- var nodeEdgesIndexOffset = this._metaNode.node_fields.indexOf("edges_index");
- firstEdgeIndexes[nodeCount] = this._containmentEdges.length;
- for (var nodeOrdinal = 0; nodeOrdinal < nodeCount; ++nodeOrdinal) {
- firstEdgeIndexes[nodeOrdinal] = nodes[nodeOrdinal * nodeFieldCount + nodeEdgesIndexOffset];
- }
- return;
- }
-
- 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;
- }
- }
- },
-
- 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._flags;
- delete this._distancesToWindow;
- delete this._dominatorsTree;
- },
-
- _allNodes: function()
- {
- return new WebInspector.HeapSnapshotNodeIterator(this.rootNode());
- },
-
- rootNode: function()
- {
- return new WebInspector.HeapSnapshotNode(this, 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);
- },
-
- _flagsOfNode: function(node)
- {
- return this._flags[node.nodeIndex / this._nodeFieldCount];
- },
-
-
- 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 = new WebInspector.HeapSnapshotNode(this);
- 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;
- },
-
- _calculateObjectToWindowDistance: function()
- {
- var nodeFieldCount = this._nodeFieldCount;
- var distances = new Uint32Array(this.nodeCount);
-
-
- var nodesToVisit = new Uint32Array(this.nodeCount);
- var nodesToVisitLength = 0;
- for (var iter = this.rootNode().edges(); iter.hasNext(); iter.next()) {
- var node = iter.edge.node();
- if (node.isWindow()) {
- nodesToVisit[nodesToVisitLength++] = node.nodeIndex;
- distances[node.nodeIndex / nodeFieldCount] = 1;
- }
- }
- this._bfs(nodesToVisit, nodesToVisitLength, distances);
-
-
- nodesToVisitLength = 0;
- nodesToVisit[nodesToVisitLength++] = this._rootNodeIndex;
- distances[this._rootNodeIndex / nodeFieldCount] = 1;
- this._bfs(nodesToVisit, nodesToVisitLength, distances);
- this._distancesToWindow = 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 edgeShortcutType = this._edgeShortcutType;
-
- 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])
- 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 flags = this._flags;
- var nodesLength = nodes.length;
- var nodeNativeType = this._nodeNativeType;
- var nodeFieldCount = this._nodeFieldCount;
- var selfSizeOffset = this._nodeSelfSizeOffset;
- var nodeTypeOffset = this._nodeTypeOffset;
- var pageObjectFlag = this._nodeFlags.pageObject;
- var node = new WebInspector.HeapSnapshotNode(this, this._rootNodeIndex);
- var distancesToWindow = this._distancesToWindow;
-
- for (var nodeIndex = this._rootNodeIndex; nodeIndex < nodesLength; nodeIndex += nodeFieldCount) {
- var nodeOrdinal = nodeIndex / nodeFieldCount;
- if (!(flags[nodeOrdinal] & pageObjectFlag))
- 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,
- distanceToWindow: distancesToWindow[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.distanceToWindow = Math.min(clss.distanceToWindow, distancesToWindow[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 = new WebInspector.HeapSnapshotNode(this, 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 flags = this._flags;
- var pageObjectFlag = this._nodeFlags.pageObject;
- 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[nodeOrdinal] & pageObjectFlag) &&
- (!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 = new WebInspector.HeapSnapshotNode(this);
- var nodeB = new WebInspector.HeapSnapshotNode(this);
- 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 flags = this._flags;
- var flag = this._nodeFlags.pageObject;
-
- 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[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[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)
- throw new Error("Postordering failed. " + (nodeCount - postOrderIndex) + " hanging nodes");
-
- 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 flags = this._flags;
- var flag = this._nodeFlags.pageObject;
-
- 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[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[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;
- for (var nodeOrdinal = 1, l = this.nodeCount; nodeOrdinal < l; ++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 = 1, l = this.nodeCount; nodeOrdinal < l; ++nodeOrdinal) {
- var dominatorOrdinal = dominatorsTree[nodeOrdinal];
- var dominatedRefIndex = indexArray[dominatorOrdinal];
- dominatedRefIndex += (--dominatedNodes[dominatedRefIndex]);
- dominatedNodes[dominatedRefIndex] = nodeOrdinal * nodeFieldCount;
- }
- },
-
- _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._containmentEdges[globalObjEdge._edges._start + globalObjEdge.edgeIndex + this._edgeTypeOffset] = this._edgeInvisibleType;
- }
- }
- },
-
- _numbersComparator: function(a, b)
- {
- return a < b ? -1 : (a > b ? 1 : 0);
- },
-
- _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.isDetachedDOMTreesRoot()) {
- detachedDOMTreesRoot = node;
- break;
- }
- }
-
- if (!detachedDOMTreesRoot)
- return;
-
- for (var iter = detachedDOMTreesRoot.edges(); iter.hasNext(); iter.next()) {
- var node = iter.edge.node();
- if (node.isDetachedDOMTree()) {
- for (var edgesIter = node.edges(); edgesIter.hasNext(); edgesIter.next())
- this._flags[edgesIter.edge.node().nodeIndex / this._nodeFieldCount] |= flag;
- }
- }
- },
-
- _markPageOwnedNodes: function()
- {
- var edgeShortcutType = this._edgeShortcutType;
- 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;
- for (var edgeIndex = firstEdgeIndexes[rootNodeOrdinal], endEdgeIndex = firstEdgeIndexes[rootNodeOrdinal + 1];
- edgeIndex < endEdgeIndex;
- edgeIndex += edgeFieldsCount) {
- if (containmentEdges[edgeIndex + edgeTypeOffset] === edgeShortcutType) {
- var nodeOrdinal = containmentEdges[edgeIndex + edgeToNodeOffset] / 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;
- }
- }
- },
-
- _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().isWindow())
- 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);
- }
- }
- },
-
- _calculateFlags: function()
- {
- this._flags = new Uint32Array(this.nodeCount);
- this._markDetachedDOMTreeNodes();
- this._markQueriableHeapObjects();
- this._markPageOwnedNodes();
- },
-
- 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 = new WebInspector.HeapSnapshotNode(this, 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, filter)
- {
- var node = new WebInspector.HeapSnapshotNode(this, nodeIndex);
- return new WebInspector.HeapSnapshotEdgesProvider(this, this._parseFilter(filter), node.edges());
- },
-
- createRetainingEdgesProvider: function(nodeIndex, filter)
- {
- var node = new WebInspector.HeapSnapshotNode(this, nodeIndex);
- return new WebInspector.HeapSnapshotEdgesProvider(this, this._parseFilter(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);
- },
-
- createNodesProviderForClass: function(className, aggregatesKey)
- {
- function filter(node) {
- return node.isPageObject();
- }
- return new WebInspector.HeapSnapshotNodesProvider(this, filter, this.aggregates(false, aggregatesKey)[className].idxs);
- },
-
- createNodesProviderForDominator: function(nodeIndex)
- {
- var node = new WebInspector.HeapSnapshotNode(this, 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, nodeFlags: this._nodeFlags};
- }
- };
-
-
- 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.first(); iterator.hasNext(); iterator.next())
- this._iterationOrder.push(iterator.index());
- } else if (!this._unfilteredIterationOrder) {
- for (iterator.first(); 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;
- }
- },
-
- first: 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.first();
- return !iterator.hasNext();
- } else if (!this._unfilteredIterationOrder) {
- for (iterator.first(); 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.serializeItem(this.item());
- 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.first();
- }
- }
-
- 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 = {
- serializeItem: function(edge)
- {
- return {
- name: edge.name(),
- propertyAccessor: edge.toString(),
- node: WebInspector.HeapSnapshotNodesProvider.prototype.serializeItem(edge.node()),
- nodeIndex: edge.nodeIndex(),
- type: edge.type(),
- distanceToWindow: edge.node().distanceToWindow()
- };
- },
-
- 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 = new WebInspector.HeapSnapshotNode(this.snapshot);
- var nodeB = new WebInspector.HeapSnapshotNode(this.snapshot);
-
- 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 = new WebInspector.HeapSnapshotNode(this.snapshot);
- for (var i = 0; i < this._iterationOrder.length; i++) {
- node.nodeIndex = this._iterationOrder[i];
- if (node.id() === snapshotObjectId)
- return i;
- }
- return -1;
- },
-
- serializeItem: function(node)
- {
- return {
- id: node.id(),
- name: node.name(),
- distanceToWindow: node.distanceToWindow(),
- nodeIndex: node.nodeIndex,
- retainedSize: node.retainedSize(),
- selfSize: node.selfSize(),
- type: node.type(),
- flags: node.flags()
- };
- },
-
- sort: function(comparator, leftBound, rightBound, count)
- {
- 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)
- {
- 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()
- {
- var result = new WebInspector.HeapSnapshot(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.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.zIndex = -1;
- fileSelectorElement.style.position = "absolute";
- fileSelectorElement.onchange = function(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 keys = Object.keys(obj);
- var result = [];
-
- for (var i = 0; i < keys.length; ++i)
- result.push(obj[keys[i]]);
- return result;
- }
-
- String.prototype.hasSubstring = function(string, caseInsensitive)
- {
- if (!caseInsensitive)
- return this.indexOf(string) !== -1;
- return this.match(new RegExp(string.escapeForRegExp(), "i"));
- }
-
- 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 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.prototype.escapeForRegExp = function()
- {
- return this.escapeCharacters("^[]{}()\\.$*+?|");
- }
-
- String.prototype.escapeHTML = function()
- {
- return this.replace(/&/g, "&").replace(/</g, "<").replace(/>/g, ">").replace(/"/g, """);
- }
-
- String.prototype.collapseWhitespace = function()
- {
- return this.replace(/[\s\xA0]+/g, " ");
- }
-
- String.prototype.trimMiddle = function(maxLength)
- {
- if (this.length <= maxLength)
- return 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 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;
- }
-
-
- 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;
- }
-
- Number.constrain = function(num, min, max)
- {
- if (num < min)
- num = min;
- else if (num > max)
- num = max;
- return num;
- }
-
- Date.prototype.toISO8601Compact = function()
- {
- function leadZero(x)
- {
- return x > 9 ? '' + x : '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, "upperBound",
- {
-
- value: function(value)
- {
- var first = 0;
- var count = this.length;
- while (count > 0) {
- var step = count >> 1;
- var middle = first + step;
- if (value >= this[middle]) {
- first = middle + 1;
- count -= step + 1;
- } else
- count = step;
- }
- return first;
- }
- });
-
- 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, k);
- }
-
- 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;
- }
- }
- });
-
-
- 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;
- }
- });
-
- 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;
- }
- });
-
-
- 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;
- }
- }
-
- Array.convert = function(list)
- {
-
- return Array.prototype.slice.call(list);
- }
-
-
- 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 = "[](){}+-*.,?\\^$|";
- 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 Map = function()
- {
- this._map = {};
- this._size = 0;
- }
-
- Map._lastObjectIdentifier = 0;
-
- Map.prototype = {
-
- put: function(key, value)
- {
- var objectIdentifier = key.__identifier;
- if (!objectIdentifier) {
- objectIdentifier = ++Map._lastObjectIdentifier;
- key.__identifier = objectIdentifier;
- }
- if (!this._map[objectIdentifier])
- ++this._size;
- this._map[objectIdentifier] = [key, value];
- },
-
-
- remove: function(key)
- {
- var result = this._map[key.__identifier];
- delete this._map[key.__identifier];
- --this._size;
- return result ? result[1] : undefined;
- },
-
-
- 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;
- },
-
- size: function()
- {
- return this._size;
- },
-
- clear: function()
- {
- this._map = {};
- this._size = 0;
- }
- }
-
- 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 || xhr.status === 0)
- 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;
- _importedScripts[scriptName] = true;
- var xhr = new XMLHttpRequest();
- xhr.open("GET", scriptName, false);
- xhr.send(null);
- window.eval(xhr.responseText + "\n//@ sourceURL=" + scriptName);
- }
- ;
-
- 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();
-