Demo/bin/Debug/front_end/heap_snapshot_worker/JSHeapSnapshot.js

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/*
 * Copyright (C) 2012 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.HeapSnapshot}
 * @param {!Object} profile
 * @param {!WebInspector.HeapSnapshotProgress} progress
 * @param {boolean} showHiddenData
 */
WebInspector.JSHeapSnapshot = function(profile, progress, showHiddenData)
{
    this._nodeFlags = { // bit flags
        canBeQueried: 1,
        detachedDOMTreeNode: 2,
        pageObject: 4, // The idea is to track separately the objects owned by the page and the objects owned by debugger.

        visitedMarkerMask: 0x0ffff,
        visitedMarker:     0x10000
    };
    this._lazyStringCache = { };
    this._showHiddenData = showHiddenData;
    WebInspector.HeapSnapshot.call(this, profile, progress);
}

WebInspector.JSHeapSnapshot.prototype = {
    /**
     * @override
     * @param {number=} nodeIndex
     * @return {!WebInspector.JSHeapSnapshotNode}
     */
    createNode: function(nodeIndex)
    {
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