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/****************************************************************************
**
** Copyright (C) 2018 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtQml module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include <private/qv4bytecodehandler_p.h>

QT_USE_NAMESPACE
using namespace QV4;
using namespace Moth;

ByteCodeHandler::~ByteCodeHandler()
{
}

#define DISPATCH_INSTRUCTION(name, nargs, ...) \
    generate_##name( \
        __VA_ARGS__ \
    );

#define DECODE_AND_DISPATCH(instr) \
    { \
        INSTR_##instr(MOTH_DECODE_WITH_BASE) \
        Q_UNUSED(base_ptr); \
        _currentOffset = _nextOffset; \
        _nextOffset = code - start; \
        if (startInstruction(Instr::Type::instr) == ProcessInstruction) { \
            INSTR_##instr(DISPATCH) \
            endInstruction(Instr::Type::instr); \
        } \
        continue; \
    }

void ByteCodeHandler::decode(const char *code, uint len)
{
    MOTH_JUMP_TABLE;

    const char *start = code;
    const char *end = code + len;
    while (code < end) {
        MOTH_DISPATCH()

        FOR_EACH_MOTH_INSTR(DECODE_AND_DISPATCH)
    }
}

#undef DECODE_AND_DISPATCH
#undef DISPATCH_INSTRUCTION