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/*
* Copyright (c) 1999-2002 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
*/
#ifdef HAVE_CVS_IDENT
#ident "$Id: dup_expr.cc,v 1.20 2005/07/11 16:56:50 steve Exp $"
#endif

# include "config.h"

# include "netlist.h"
# include <cassert>

NetEBComp* NetEBComp::dup_expr() const
{
      NetEBComp*result = new NetEBComp(op_, left_->dup_expr(),
right_->dup_expr());
      return result;
}

NetEConst* NetEConst::dup_expr() const
{
      NetEConst*tmp = new NetEConst(value_);
      tmp->set_line(*this);
      return tmp;
}

NetEConstParam* NetEConstParam::dup_expr() const
{
      NetEConstParam*tmp = new NetEConstParam(scope_, name_, value());
      tmp->set_line(*this);
      return tmp;
}

NetECRealParam* NetECRealParam::dup_expr() const
{
      NetECRealParam*tmp = new NetECRealParam(scope_, name_, value());
      tmp->set_line(*this);
      return tmp;
}

NetEEvent* NetEEvent::dup_expr() const
{
      assert(0);
      return 0;
}

NetEScope* NetEScope::dup_expr() const
{
      assert(0);
      return 0;
}

NetESelect* NetESelect::dup_expr() const
{
      return new NetESelect(expr_->dup_expr(), base_->dup_expr(),
expr_width());
}

NetESFunc* NetESFunc::dup_expr() const
{
      NetESFunc*tmp = new NetESFunc(name_, type_, expr_width(), nparms());
      assert(tmp);

      tmp->cast_signed(has_sign());
      for (unsigned idx = 0 ; idx < nparms() ; idx += 1) {
assert(tmp->parm(idx));
tmp->parm(idx, tmp->parm(idx)->dup_expr());
      }

      return tmp;
}

NetESignal* NetESignal::dup_expr() const
{
      NetESignal*tmp = new NetESignal(net_);
      assert(tmp);
      tmp->expr_width(expr_width());
      return tmp;
}

NetETernary* NetETernary::dup_expr() const
{
      NetETernary*tmp = new NetETernary(cond_->dup_expr(),
true_val_->dup_expr(),
false_val_->dup_expr());
      return tmp;
}

NetEUFunc* NetEUFunc::dup_expr() const
{
      NetEUFunc*tmp;
      svector<NetExpr*> tmp_parms (parms_.count());

      for (unsigned idx = 0 ; idx < tmp_parms.count() ; idx += 1) {
assert(parms_[idx]);
tmp_parms[idx] = parms_[idx]->dup_expr();
      }

      tmp = new NetEUFunc(func_, result_sig_->dup_expr(), tmp_parms);

      assert(tmp);
      return tmp;
}

NetEUnary* NetEUnary::dup_expr() const
{
      NetEUnary*tmp = new NetEUnary(op_, expr_->dup_expr());
      assert(tmp);
      return tmp;
}

NetEUReduce* NetEUReduce::dup_expr() const
{
      NetEUReduce*tmp = new NetEUReduce(op_, expr_->dup_expr());
      assert(tmp);
      return tmp;
}

/*
* $Log: dup_expr.cc,v $
* Revision 1.20 2005/07/11 16:56:50 steve
* Remove NetVariable and ivl_variable_t structures.
*
* Revision 1.19 2004/12/11 02:31:25 steve
* Rework of internals to carry vectors through nexus instead
* of single bits. Make the ivl, tgt-vvp and vvp initial changes
* down this path.
*
* Revision 1.18 2004/06/17 16:06:18 steve
* Help system function signedness survive elaboration.
*
* Revision 1.17 2004/05/31 23:34:36 steve
* Rewire/generalize parsing an elaboration of
* function return values to allow for better
* speed and more type support.
*
* Revision 1.16 2003/10/31 02:47:11 steve
* NetEUReduce has its own dup_expr method.
*
* Revision 1.15 2003/05/30 02:55:32 steve
* Support parameters in real expressions and
* as real expressions, and fix multiply and
* divide with real results.
*
* Revision 1.14 2003/04/22 04:48:29 steve
* Support event names as expressions elements.
*
* Revision 1.13 2003/03/15 18:08:43 steve
* Comparison operators do have defined width.
*
* Revision 1.12 2003/03/15 04:46:28 steve
* Better organize the NetESFunc return type guesses.
*
* Revision 1.11 2003/03/10 23:40:53 steve
* Keep parameter constants for the ivl_target API.
*
* Revision 1.10 2003/01/26 21:15:58 steve
* Rework expression parsing and elaboration to
* accommodate real/realtime values and expressions.
*
* Revision 1.9 2002/11/09 00:25:27 steve
* Add dup_expr for user defined function calls.
*
* Revision 1.8 2002/08/12 01:34:58 steve
* conditional ident string using autoconfig.
*
* Revision 1.7 2002/01/28 00:52:41 steve
* Add support for bit select of parameters.
* This leads to a NetESelect node and the
* vvp code generator to support that.
*
* Revision 1.6 2001/11/19 01:54:14 steve
* Port close cropping behavior from mcrgb
* Move window array reset to libmc.
*
* Revision 1.5 2001/07/25 03:10:48 steve
* Create a config.h.in file to hold all the config
* junk, and support gcc 3.0. (Stephan Boettcher)
*
* Revision 1.4 2000/05/07 18:20:07 steve
* Import MCD support from Stephen Tell, and add
* system function parameter support to the IVL core.
*
* Revision 1.3 2000/05/04 03:37:58 steve
* Add infrastructure for system functions, move
* $time to that structure and add $random.
*/
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