NullGuardField.hh

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/*
    Copyright (c) 2002-2009 Tampere University.
 
    This file is part of TTA-Based Codesign Environment (TCE).
 
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/**
 * @file NullGuardField.hh
 *
 * Declaration of NullGuardField class.
 *
 * @author Lasse Laasonen 2005 (lasse.laasonen-no.spam-tut.fi)
 * @note rating: red
 */
 
#ifndef TTA_NULL_GUARD_FIELD_HH
#define TTA_NULL_GUARD_FIELD_HH
 
#include "GuardField.hh"
 
class BinaryEncoding;
 
/**
 * A null version of the GuardField class.
 */
class NullGuardField : public GuardField {
public:
    static NullGuardField& instance();
 
private:
    NullGuardField();
    virtual ~NullGuardField();
 
    /// The only instance of NullGuardField.
    static NullGuardField instance_;
    /// The parent move slot.
    static MoveSlot moveSlot_;
    /// The parent binary encoding.
    static BinaryEncoding bem_;
};
 
#endif