Source/core/css/resolver/StyleResolverStats.cpp

/*
 * Copyright (C) 2013 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,
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#include "config.h"
#include "core/css/resolver/StyleResolverStats.h"

namespace blink {

void StyleResolverStats::reset()
{
    sharedStyleLookups = 0;
    sharedStyleCandidates = 0;
    sharedStyleFound = 0;
    sharedStyleMissed = 0;
    sharedStyleRejectedByUncommonAttributeRules = 0;
    sharedStyleRejectedBySiblingRules = 0;
    sharedStyleRejectedByParent = 0;
    matchedPropertyApply = 0;
    matchedPropertyCacheHit = 0;
    matchedPropertyCacheInheritedHit = 0;
    matchedPropertyCacheAdded = 0;
    rulesFastRejected = 0;
    rulesRejected = 0;
    rulesMatched = 0;
    stylesChanged = 0;
    stylesUnchanged = 0;
    stylesAnimated = 0;
    elementsStyled = 0;
    pseudoElementsStyled = 0;
    baseStylesUsed = 0;
}

bool StyleResolverStats::allCountersEnabled() const
{
    bool allCountersEnabled;
    TRACE_EVENT_CATEGORY_GROUP_ENABLED(TRACE_DISABLED_BY_DEFAULT("blink.style"), &allCountersEnabled);
    return allCountersEnabled;
}

PassRefPtr<TracedValue> StyleResolverStats::toTracedValue() const
{
    RefPtr<TracedValue> tracedValue = TracedValue::create();
    tracedValue->setInteger("sharedStyleLookups", sharedStyleLookups);
    tracedValue->setInteger("sharedStyleCandidates", sharedStyleCandidates);
    tracedValue->setInteger("sharedStyleFound", sharedStyleFound);
    if (allCountersEnabled())
        tracedValue->setInteger("sharedStyleMissed", sharedStyleMissed);
    tracedValue->setInteger("sharedStyleRejectedByUncommonAttributeRules", sharedStyleRejectedByUncommonAttributeRules);
    tracedValue->setInteger("sharedStyleRejectedBySiblingRules", sharedStyleRejectedBySiblingRules);
    tracedValue->setInteger("sharedStyleRejectedByParent", sharedStyleRejectedByParent);
    tracedValue->setInteger("matchedPropertyApply", matchedPropertyApply);
    tracedValue->setInteger("matchedPropertyCacheHit", matchedPropertyCacheHit);
    tracedValue->setInteger("matchedPropertyCacheInheritedHit", matchedPropertyCacheInheritedHit);
    tracedValue->setInteger("matchedPropertyCacheAdded", matchedPropertyCacheAdded);
    tracedValue->setInteger("rulesRejected", rulesRejected);
    tracedValue->setInteger("rulesFastRejected", rulesFastRejected);
    tracedValue->setInteger("rulesMatched", rulesMatched);
    tracedValue->setInteger("stylesChanged", stylesChanged);
    tracedValue->setInteger("stylesUnchanged", stylesUnchanged);
    tracedValue->setInteger("stylesAnimated", stylesAnimated);
    tracedValue->setInteger("elementsStyled", elementsStyled);
    tracedValue->setInteger("pseudoElementsStyled", pseudoElementsStyled);
    tracedValue->setInteger("baseStylesUsed", baseStylesUsed);
    return tracedValue.release();
}


} // namespace blink