NullGPRGuardEncoding.hh

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/*
    Copyright (c) 2002-2009 Tampere University.
 
    This file is part of TTA-Based Codesign Environment (TCE).
 
    Permission is hereby granted, free of charge, to any person obtaining a
    copy of this software and associated documentation files (the "Software"),
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    Software is furnished to do so, subject to the following conditions:
 
    The above copyright notice and this permission notice shall be included in
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/**
 * @file NullGPRGuardEncoding.hh
 *
 * Declaration of NullGPRGuardEncoding class.
 *
 * @author Lasse Laasonen 2005 (lasse.laasonen-no.spam-tut.fi)
 * @note rating: red
 */
 
#ifndef TTA_NULL_GPR_GUARD_ENCODING_HH
#define TTA_NULL_GPR_GUARD_ENCODING_HH
 
#include "GPRGuardEncoding.hh"
 
class MoveSlot;
class BinaryEncoding;
 
/**
 * A null version of GPRGuardEncoding class.
 */
class NullGPRGuardEncoding : public GPRGuardEncoding {
public:
    static NullGPRGuardEncoding& instance();
 
private:
    NullGPRGuardEncoding();
    virtual ~NullGPRGuardEncoding();
 
    /// The only instance of this class.
    static NullGPRGuardEncoding instance_;
    /// The parent guard field.
    static GuardField guardField_;
    /// The parent move slot.
    static MoveSlot moveSlot_;
    /// The parent binary encoding.
    static BinaryEncoding bem_;
};
 
#endif