Demo/bin/Debug/front_end/profiler/HeapSnapshotGridNodes.js

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/*
 * Copyright (C) 2011 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/**
 * @constructor
 * @extends {WebInspector.DataGridNode}
 * @param {!WebInspector.HeapSnapshotSortableDataGrid} tree
 * @param {boolean} hasChildren
 */
WebInspector.HeapSnapshotGridNode = function(tree, hasChildren)
{
    WebInspector.DataGridNode.call(this, null, hasChildren);
    this._dataGrid = tree;
    this._instanceCount = 0;

    this._savedChildren = null;
    /**
     * List of position ranges for all visible nodes: [startPos1, endPos1),...,[startPosN, endPosN)
     * Position is an item position in the provider.
     */
    this._retrievedChildrenRanges = [];

    /**
      * @type {?WebInspector.HeapSnapshotGridNode.ChildrenProvider}
      */
    this._providerObject = null;
}

WebInspector.HeapSnapshotGridNode.Events = {
    PopulateComplete: "PopulateComplete"
}

/**
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