/* -*- tab-width: 4 -*-
*
* Electric(tm) VLSI Design System
*
* File: LEInst.java
*
* Copyright (c) 2005 Sun Microsystems and Static Free Software
*
* 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.
*/
package com.sun.electric.tool.logicaleffort;
import com.sun.electric.database.variable.Variable;
import com.sun.electric.database.variable.ElectricObject;
import com.sun.electric.database.variable.VarContext;
import com.sun.electric.database.hierarchy.Nodable;
import com.sun.electric.technology.PrimitiveNode;
/**
* Class to describe an instance in Logical Effort.
*/
public class LEInst {
public static final Variable.Key ATTR_LEGATE = Variable.newKey("ATTR_LEGATE");
public static final Variable.Key ATTR_LEKEEPER = Variable.newKey("ATTR_LEKEEPER");
public static final Variable.Key ATTR_LEWIRE = Variable.newKey("ATTR_LEWIRE");
public static final Variable.Key ATTR_LESETTINGS = Variable.newKey("ATTR_LESETTINGS");
public static final Variable.Key ATTR_LEIGNORE = Variable.newKey("ATTR_LEIGNORE");
/** Type is a typesafe enum class that describes the type of Instance this is */
public static class Type {
private final String name;
private Type(String name) { this.name = name; }
public String toString() { return name; }
/** LeGate */ public static final Type LEGATE = new Type("LE Gate");
/** LeKeeper */ public static final Type LEKEEPER = new Type("LE Keeper");
/** NotSizeable */ public static final Type WIRE = new Type("Wire");
/** NotSizeable */ public static final Type TRANSISTOR = new Type("Transistor");
/** NotSizeable */ public static final Type CAPACITOR = new Type("Capacitor");
/** Ignore */ public static final Type IGNORE = new Type("LE Ignore");
/** NotSizeable */ public static final Type LESETTINGS = new Type("LE Settings");
/** NotSizeable */ public static final Type UNKNOWN = new Type("Unknown");
}
// ------------------------- Netlisting ------------------------------------
/**
* Get the LENodable type of this Nodable. If it is not a valid type, return Type.UNKNOWN.
* @param no the Nodable to examine
* @param context the current VarContext
* @return the LENodable type
*/
public static Type getType(Nodable no, VarContext context) {
if (isVarValueOne(no, context, ATTR_LEGATE)) {
return Type.LEGATE;
}
else if (isVarValueOne(no, context, ATTR_LEKEEPER)) {
return Type.LEKEEPER;
}
else if (isVarValueOne(no, context, ATTR_LEWIRE)) {
return Type.WIRE;
}
else if ((no.getProto() != null) && (no.getProto().getFunction().isTransistor())) {
return Type.TRANSISTOR;
}
else if ((no.getProto() != null) && (no.getProto().getFunction().isCapacitor())) {
return Type.CAPACITOR;
}
else if (isVarValueOne(no, context, ATTR_LEIGNORE)) {
return Type.IGNORE;
}
else if (isVarValueOne(no, context, ATTR_LESETTINGS)) {
return Type.LESETTINGS;
}
return Type.UNKNOWN;
}
// return true if the var "name" evaluates to the integer value 1
private static boolean isVarValueOne(Nodable no, VarContext context, Variable.Key key) {
Variable var = no.getParameter(key);
if (var == null) return false;
int val = VarContext.objectToInt(context.evalVar(var), 1);
if (val == 1) return true;
return false;
}
}