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#ifndef __functor_H
#define __functor_H
/*
* Copyright (c) 1999 Stephen Williams (steve@icarus.com)
*
* This source code is free software; you can redistribute it
* and/or modify it in source code form under the terms of the GNU
* General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT)
#ident "$Id: functor.h,v 1.6 1999/12/30 04:19:12 steve Exp $"
#endif

/*
* The functor is an object that can be applied to a design to
* transform it. This is different from the target_t, which can only
* scan the design but not transform it in any way.
*/

class Design;
class NetNet;
class NetProcTop;

struct functor_t {
      virtual ~functor_t();

/* Signals are scanned first. This is called once for each
signal in the design. */
      virtual void signal(class Design*des, class NetNet*);

/* This method is called for each process in the design. */
      virtual void process(class Design*des, class NetProcTop*);

/* This method is called for each structural adder. */
      virtual void lpm_add_sub(class Design*des, class NetAddSub*);

/* This method is called for each structural constant. */
      virtual void lpm_const(class Design*des, class NetConst*);

/* This method is called for each FF in the design. */
      virtual void lpm_ff(class Design*des, class NetFF*);

/* Handle LPM combinational logic devices. */
      virtual void lpm_logic(class Design*des, class NetLogic*);
};

struct proc_match_t {
      virtual ~proc_match_t();

      virtual int assign(class NetAssign*);
      virtual int assign_mem(class NetAssignMem*);
      virtual int condit(class NetCondit*);
      virtual int pevent(class NetPEvent*);
};


/*
* $Log: functor.h,v $
* Revision 1.6 1999/12/30 04:19:12 steve
* Propogate constant 0 in low bits of adders.
*
* Revision 1.5 1999/12/17 06:18:16 steve
* Rewrite the cprop functor to use the functor_t interface.
*
* Revision 1.4 1999/12/05 02:24:08 steve
* Synthesize LPM_RAM_DQ for writes into memories.
*
* Revision 1.3 1999/12/01 06:06:16 steve
* Redo synth to use match_proc_t scanner.
*
* Revision 1.2 1999/11/01 02:07:40 steve
* Add the synth functor to do generic synthesis
* and add the LPM_FF device to handle rows of
* flip-flops.
*
* Revision 1.1 1999/07/17 22:01:13 steve
* Add the functor interface for functor transforms.
*
*/
#endif
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