// $Id: backwardStatementIterator.java,v 1.2 1999/05/20 09:32:05 m-hirano Exp $
// $RWC_Release: Omni-1.6 $
// $RWC_Copyright:
//  Omni Compiler Software Version 1.5-1.6
//  Copyright (C) 2002 PC Cluster Consortium
//  
//  This software is free software; you can redistribute it and/or modify
//  it under the terms of the GNU Lesser General Public License version
//  2.1 published by the Free Software Foundation.
//  
//  Omni Compiler Software Version 1.0-1.4
//  Copyright (C) 1999, 2000, 2001.
//   Tsukuba Research Center, Real World Computing Partnership, Japan.
//  
//  Please check the Copyright and License information in the files named
//  COPYRIGHT and LICENSE under the top  directory of the Omni Compiler
//  Software release kit.
//  
//  
//  $
package exc.block;

import exc.object.*;

public class backwardStatementIterator implements StatementIterator {
    Statement current_statement;
    public backwardStatementIterator(Statement s){
	current_statement = s;
    }
    public boolean hasMoreStatement(){
	return current_statement != null;
    }
    public Statement nextStatement(){
	Statement s = current_statement;
	current_statement = current_statement.getPrev();
	return s;
    }
}