/*
 * Copyright (c) 2005, Regents of the University of California
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * * Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * * Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in
 *   the documentation and/or other materials provided with the
 *   distribution.  
 *
 * * Neither the name of the University of California, Berkeley nor
 *   the names of its contributors may be used to endorse or promote
 *   products derived from this software without specific prior 
 *   written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package blog;

import java.util.*;
import java.io.PrintStream;

public class OriginFunction extends Function {

    

    public OriginFunction( String fname, List arg_types,
			      Type ret_type ) {

	super( fname, arg_types, ret_type );
	if (arg_types.size() != 1) {
	    throw new IllegalArgumentException
		("Origin function must have exactly one argument.");
	}
	getArgType().addOriginFunction(this); 
    }

    

    public Type getArgType() {
	return getArgTypes()[0];
    }

    public Object getValueInContext(Object[] args, EvalContext context, 
				    boolean stable) {
	Object singleArg = args[0];
	if (singleArg instanceof NonGuaranteedObject) {
	    return ((NonGuaranteedObject) singleArg).getOriginFuncValue(this);
	}
 
	if (singleArg instanceof ObjectIdentifier) {
	    NumberVar nv 
		= context.getPOPAppSatisfied((ObjectIdentifier) singleArg);
	    return nv.getOriginFuncValue(this);
	} 

	if (singleArg instanceof GenericObject) {
	    return ((GenericObject) singleArg).getOriginFuncValue(this);
	}

	// singleArg must be a guaranteed object or Model.NULL; 
	// all generating functions are null on it
	return Model.NULL; 
    }
}

This file was generated on Tue Jun 08 17:53:36 PDT 2010 from file OriginFunction.java
by the ilog.language.tools.Hilite Java tool written by Hassan Aït-Kaci