001    /*
002     *  This file is part of the Jikes RVM project (http://jikesrvm.org).
003     *
004     *  This file is licensed to You under the Eclipse Public License (EPL);
005     *  You may not use this file except in compliance with the License. You
006     *  may obtain a copy of the License at
007     *
008     *      http://www.opensource.org/licenses/eclipse-1.0.php
009     *
010     *  See the COPYRIGHT.txt file distributed with this work for information
011     *  regarding copyright ownership.
012     */
013    package org.jikesrvm.tools.header_gen;
014    
015    import org.jikesrvm.classloader.RVMField;
016    import org.vmmagic.unboxed.Offset;
017    
018    /**
019     * Utility class to help sort fields.
020     */
021    class SortableField implements Comparable<SortableField> {
022      final RVMField f;
023      final Offset offset;
024    
025      SortableField(RVMField ff) {
026        f = ff;
027        offset = f.getOffset();
028      }
029    
030      public int compareTo(SortableField y) {
031        if (offset.sGT(y.offset)) return 1;
032        if (offset.sLT(y.offset)) return -1;
033        return 0;
034      }
035    }