VirtualNetlistBlock.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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    copy of this software and associated documentation files (the "Software"),
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    The above copyright notice and this permission notice shall be included in
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/**
 * @file VirtualNetlistBlock.hh
 *
 * Declaration of VirtualNetlistBlock class.
 *
 * @author Otto Esko 2010 (otto.esko-no.spam-tut.fi)
 * @note rating: red
 */
 
#ifndef TTA_VIRTUAL_NETLIST_BLOCK_HH
#define TTA_VIRTUAL_NETLIST_BLOCK_HH
 
#include <string>
 
#include "Exception.hh"
#include "NetlistBlock.hh"
 
namespace ProGe {
 
class Netlist;
 
/**
 * Represents a virtual block in the netlist.
 *
 * Virtual blocks are not written to HDL files so they can include special
 * ports such as all zero or all one connections.
 * Ports belonging to a virtual block do not generate into signals in HDL.
 */
class VirtualNetlistBlock : public NetlistBlock {
public:
    VirtualNetlistBlock(
        const std::string& moduleName,
        const std::string& instanceName);
    virtual ~VirtualNetlistBlock();
 
    virtual bool isVirtual() const;
};
}
 
#endif