ArrayTypeStructure.java Source File

00001 package edu.ksu.cis.bandera.abstraction.typeinference;
00002 
00003 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
00004  * Bandera, a Java(TM) analysis and transformation toolkit           *
00005  * Copyright (C) 1998, 1999, 2000   Shawn Laubach (laubach@acm.org)  *
00006  * All rights reserved.                                              *
00007  *                                                                   *
00008  * Modifications by Robby (robby@cis.ksu.edu) are                    *
00009  * Copyright (C) 2000 Robby.  All rights reserved.                   *
00010  *                                                                   *
00011  * This work was done as a project in the SAnToS Laboratory,         *
00012  * Department of Computing and Information Sciences, Kansas State    *
00013  * University, USA (http://www.cis.ksu.edu/santos).                  *
00014  * It is understood that any modification not identified as such is  *
00015  * not covered by the preceding statement.                           *
00016  *                                                                   *
00017  * This work is free software; you can redistribute it and/or        *
00018  * modify it under the terms of the GNU Library General Public       *
00019  * License as published by the Free Software Foundation; either      *
00020  * version 2 of the License, or (at your option) any later version.  *
00021  *                                                                   *
00022  * This work is distributed in the hope that it will be useful,      *
00023  * but WITHOUT ANY WARRANTY; without even the implied warranty of    *
00024  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU *
00025  * Library General Public License for more details.                  *
00026  *                                                                   *
00027  * You should have received a copy of the GNU Library General Public *
00028  * License along with this toolkit; if not, write to the             *
00029  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,      *
00030  * Boston, MA  02111-1307, USA.                                      *
00031  *                                                                   *
00032  * Java is a trademark of Sun Microsystems, Inc.                     *
00033  *                                                                   *
00034  * To submit a bug report, send a comment, or get the latest news on *
00035  * this project and other SAnToS projects, please visit the web-site *
00036  *                http://www.cis.ksu.edu/santos                      *
00037  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
00038 import java.util.*;
00039 public class ArrayTypeStructure implements TypeStructure {
00040     protected TypeStructure index;
00041     protected TypeStructure elements;
00042 /**
00043  *
00044  * @param elements edu.ksu.cis.bandera.abstraction.typeinference.TypeStructure
00045  * @param index edu.ksu.cis.bandera.abstraction.typeinference.TypeStructure
00046  */
00047 public ArrayTypeStructure(TypeStructure elements, TypeStructure index) {
00048     this.elements = elements;
00049     this.index = index;
00050 }
00051 /**
00052  * getCoerceConstraints method comment.
00053  */
00054 public java.util.Set genCoerceConstraints(TypeStructure ats) {
00055     Set set = new HashSet();
00056     if (ats instanceof ArrayTypeStructure) {
00057         ArrayTypeStructure bts = (ArrayTypeStructure) ats;
00058         set.addAll(index.genCoerceConstraints(bts.index));
00059         set.addAll(elements.genCoerceConstraints(bts.elements));
00060     } else
00061         System.out.println("Cannot mix type structures.");
00062     return set;
00063 }
00064 /**
00065  * getEqualConstraints method comment.
00066  */
00067 public java.util.Set genEqualConstraints(TypeStructure ats) {
00068     Set set = new HashSet();
00069     if (ats instanceof ArrayTypeStructure) {
00070         ArrayTypeStructure bts = (ArrayTypeStructure) ats;
00071         set.addAll(index.genEqualConstraints(bts.index));
00072         set.addAll(elements.genEqualConstraints(bts.elements));
00073     } else
00074         System.out.println("Cannot mix type structures.");
00075     return set;
00076 }
00077 /**
00078  *
00079  * @return edu.ksu.cis.bandera.abstraction.typeinference.TypeStructure
00080  */
00081 public TypeStructure getElements() {
00082     return elements;
00083 }
00084 /**
00085  *
00086  * @return edu.ksu.cis.bandera.abstraction.typeinference.TypeStructure
00087  */
00088 public TypeStructure getIndex() {
00089     return index;
00090 }
00091 /**
00092  *
00093  * @param newElements edu.ksu.cis.bandera.abstraction.typeinference.TypeStructure
00094  */
00095 protected void setElements(TypeStructure newElements) {
00096     elements = newElements;
00097 }
00098 /**
00099  *
00100  * @param newIndex edu.ksu.cis.bandera.abstraction.typeinference.TypeStructure
00101  */
00102 protected void setIndex(TypeStructure newIndex) {
00103     index = newIndex;
00104 }
00105 }