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/*
* Copyright (C) 2016-2017 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
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "CacheableIdentifier.h"
#include "DFGRegisteredStructure.h"
#include "HeapCell.h"
#include "PrivateFieldPutKind.h"
#include <wtf/OptionSet.h>
#include <wtf/StdLibExtras.h>
#if ENABLE(DFG_JIT)
namespace JSC { namespace DFG {
// This type used in passing an immediate argument to Node constructor;
// distinguishes an immediate value (typically an index into a CodeBlock data structure -
// a constant index, argument, or identifier) from a Node*.
struct OpInfo {
OpInfo() : m_value(0) { }
template<
typename IntegralType,
typename Constraint = typename std::enable_if<(std::is_integral<IntegralType>::value || std::is_enum<IntegralType>::value) && sizeof(IntegralType) <= sizeof(uint64_t)>::type>
explicit OpInfo(IntegralType value)
: m_value(static_cast<uint64_t>(value)) { }
explicit OpInfo(RegisteredStructure structure) : m_value(static_cast<uint64_t>(std::bit_cast<uintptr_t>(structure))) { }
explicit OpInfo(Operand op) : m_value(op.asBits()) { }
explicit OpInfo(CacheableIdentifier identifier) : m_value(static_cast<uint64_t>(identifier.rawBits())) { }
explicit OpInfo(ECMAMode ecmaMode) : m_value(ecmaMode.value()) { }
explicit OpInfo(PrivateFieldPutKind putKind) : m_value(putKind.value()) { }
template<typename EnumType>
explicit OpInfo(OptionSet<EnumType> optionSet) : m_value(optionSet.toRaw()) { }
template <typename T>
explicit OpInfo(T* ptr)
{
static_assert(!std::is_base_of<HeapCell, T>::value, "To make an OpInfo with a cell in it, the cell must be registered or frozen.");
static_assert(!std::is_base_of<StructureSet, T>::value, "To make an OpInfo with a structure set in, make sure to use RegisteredStructureSet.");
m_value = static_cast<uint64_t>(reinterpret_cast<uintptr_t>(ptr));
}
uint64_t m_value;
};
} } // namespace JSC::DFG
#endif // ENABLE(DFG_JIT)
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