weex_core/Source/include/wtf/LoggingHashID.h

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
#pragma once

#include <wtf/GlobalVersion.h>
#include <wtf/Noncopyable.h>
#include <wtf/PrintStream.h>

namespace WTF {

class LoggingHashID {
    WTF_MAKE_NONCOPYABLE(LoggingHashID);
    
public:
    LoggingHashID()
        : m_version(newGlobalVersion())
    {
    }
    
    void dump(PrintStream& out) const
    {
        out.print("_", m_version);
    }
private:
    GlobalVersion m_version;
};

} // namespace WTF