/* -*- tab-width: 4 -*-
*
* Electric(tm) VLSI Design System
*
* File: StratHashWires.java
*
* Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved.
*
* Electric(tm) is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* Electric(tm) 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 Electric(tm); see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, Mass 02111-1307, USA.
*/
/** StratHashWires hashes Wires by all Parts. */
package com.sun.electric.tool.ncc.strategy;
import java.util.Iterator;
import com.sun.electric.tool.ncc.NccGlobals;
import com.sun.electric.tool.ncc.lists.LeafList;
import com.sun.electric.tool.ncc.netlist.NetObject;
import com.sun.electric.tool.ncc.netlist.Wire;
import com.sun.electric.tool.ncc.trees.EquivRecord;
/** Perform a Gemini II style hash code partitioning of Wires.
*/
public class StratHashWires extends Strategy {
private int numWiresProcessed;
private int numEquivProcessed;
private StratHashWires(NccGlobals globals){super(globals);}
private void preamble(){
startTime("StratHashWires", " Wires");
}
private void summary(LeafList offspring){
globals.status2(" processed " +
numWiresProcessed + " Wires from " +
numEquivProcessed + " leaf records");
globals.status2(offspringStats(offspring));
globals.status2(offspring.sizeInfoString());
elapsedTime();
}
public LeafList doFor(EquivRecord g){
LeafList out;
if(g.isLeaf()){
numEquivProcessed++;
out = super.doFor(g);
// String s= ("processed " + g.nameString());
// globals.println(s + " to get " + out.size() + " offspring ");
} else {
out = super.doFor(g);
}
return out;
}
public Integer doFor(NetObject n){
error(!(n instanceof Wire), "StratHashWires expects wires only");
numWiresProcessed++;
Wire w= (Wire)n;
return w.computeHashCode();
}
// --------------- intended interface ------------------
public static LeafList doYourJob(Iterator<EquivRecord> it, NccGlobals globals){
// if no Wires suppress all StratHashWires messages
if (!it.hasNext()) return new LeafList();
StratHashWires hwa = new StratHashWires(globals);
hwa.preamble();
LeafList el = hwa.doFor(it);
hwa.summary(el);
return el;
}
public static LeafList doYourJob(EquivRecord er, NccGlobals globals) {
StratHashWires hwa = new StratHashWires(globals);
return hwa.doFor(er);
}
}