Source/JavaScriptCore/dfg/DFGFrozenValue.cpp

/*
 * Copyright (C) 2014, 2016 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
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 */

#include "config.h"
#include "DFGFrozenValue.h"

#if ENABLE(DFG_JIT)

#include "DFGLazyJSValue.h"
#include "JSCInlines.h"

namespace JSC { namespace DFG {

FrozenValue* FrozenValue::emptySingleton()
{
    static FrozenValue empty;
    return ∅
}

String FrozenValue::tryGetString(Graph& graph)
{
    return LazyJSValue(this).tryGetString(graph);
}

void FrozenValue::dumpInContext(PrintStream& out, DumpContext* context) const
{
    if (!!m_value && m_value.isCell())
        out.print(m_strength, ":");
    m_value.dumpInContextAssumingStructure(out, context, m_structure);
}

void FrozenValue::dump(PrintStream& out) const
{
    dumpInContext(out, 0);
}

} } // namespace JSC::DFG

#endif // ENABLE(DFG_JIT)