/*
 * Class: AddressStoreStmt   
 * Version: 
 * Date:
 * 
 * All files in the distribution of BLOAT (Bytecode Level Optimization and
 * Analysis tool for Java(tm)) are Copyright 1997-2001 by the Purdue
 * Research Foundation of Purdue University.  All rights reserved.
 *
 * <p>
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that this entire copyright notice is duplicated in all
 * such copies, and that any documentation, announcements, and other
 * materials related to such distribution and use acknowledge that the
 * software was developed at Purdue University, West Lafayette, IN by
 * @author Antony Hosking
 * @author David Whitlock
 * @author Nathaniel Nystrom
 * No charge may be made for copies, derivations, or distributions of
 * this material without the express written consent of the copyright
 * holder.  Neither the name of the University nor the name of the
 * author may be used to endorse or promote products derived from this
 * material without specific prior written permission.  THIS SOFTWARE
 * IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR ANY PARTICULAR PURPOSE.
 *
 * <p>
 * 
 * Port of the BLOAT to use the Jakata Apache project BCEL 5.2 was 
 * contributed by The Australian National University by
 * @author Arrin Daley
 * @author John N Zigman
 * 
 * <p>
 * Java is a trademark of Sun Microsystems, Inc.
 */

package edu.purdue.cs.bloat.tree;

import edu.purdue.cs.bloat.cfg.Subroutine;

/**
 * Associated with an AddressStoreStmt is a Subroutine whose address (offset in
 * the instruction sequence) is to be stored. Addresses may be loaded (using
 * <i>astore</i>), but cannot be reloaded. Therefore, AddressStoreStmt is
 * needed to differentiate between a regular (object reference) <i>astore</i>
 * which is modeled by a LocalExpr.
 * 
 * @see Tree#visit_astore
 * @see Subroutine
 * @see LocalExpr
 */
public class AddressStoreStmt extends Stmt {
    final Subroutine sub;

    /**
     * Constructor.
     * 
     * @param sub
     * 
     */
    public AddressStoreStmt(Subroutine sub) {
        this.sub = sub;
    }

    public Subroutine sub() {
        return sub;
    }

    public void visitForceChildren(TreeVisitor visitor) {
    }

    public void visit(TreeVisitor visitor) {
        visitor.visitAddressStoreStmt(this);
    }

    public Object clone() {
        return copyInto(new AddressStoreStmt(sub));
    }
}