Source/JavaScriptCore/bytecode/InstructionStream.cpp

/*
 * Copyright (C) 2018 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
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 * 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,
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#include "config.h"
#include "InstructionStream.h"

#include "Instruction.h"
#include "Opcode.h"

namespace JSC {

InstructionStream::InstructionStream(InstructionBuffer&& instructions)
    : m_instructions(WTFMove(instructions))
{ }

size_t InstructionStream::sizeInBytes() const
{
    return m_instructions.size();
}

bool InstructionStream::contains(Instruction* instruction) const
{

    const uint8_t* pointer = bitwise_cast<const uint8_t*>(instruction);
    return pointer >= m_instructions.data() && pointer < (m_instructions.data() + m_instructions.size());
}

}