Source/JavaScriptCore/bytecode/VariableWatchpointSetInlines.h

/*
 * Copyright (C) 2014 Apple 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:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
 */

#ifndef VariableWatchpointSetInlines_h
#define VariableWatchpointSetInlines_h

#include "SymbolTable.h"
#include "VariableWatchpointSet.h"

namespace JSC {

inline void VariableWatchpointSet::notifyWrite(VM& vm, JSValue value)
{
    ASSERT(!!value);
    switch (state()) {
    case ClearWatchpoint:
        m_inferredValue.set(vm, &m_symbolTable, value);
        startWatching();
        return;

    case IsWatched:
        ASSERT(!!m_inferredValue);
        if (value == m_inferredValue.get())
            return;
        invalidate();
        return;
            
    case IsInvalidated:
        ASSERT(!m_inferredValue);
        return;
    }
        
    ASSERT_NOT_REACHED();
}
    
} // namespace JSC

#endif // VariableWatchpointSetInlines_h