Source/JavaScriptCore/dfg/DFGAbstractInterpreterClobberState.h

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 * Copyright (C) 2018 Apple Inc. All rights reserved.
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#pragma once

#include <algorithm>
#include <cstdint>

#if ENABLE(DFG_JIT)

namespace JSC { namespace DFG {

enum class AbstractInterpreterClobberState : uint8_t {
    NotClobbered,
    FoldedClobber,
    ObservedTransitions,
    ClobberedStructures
};

inline AbstractInterpreterClobberState mergeClobberStates(AbstractInterpreterClobberState a, AbstractInterpreterClobberState b)
{
    uint8_t aInt = static_cast<uint8_t>(a);
    uint8_t bInt = static_cast<uint8_t>(b);
    return static_cast<AbstractInterpreterClobberState>(std::max(aInt, bInt));
}

} } // namespace JSC::DFG

namespace WTF {

class PrintStream;

void printInternal(PrintStream&, JSC::DFG::AbstractInterpreterClobberState);

} // namespace WTF

#endif // ENABLE(DFG_JIT)