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      1 /*
      2  * [The "BSD licence"]
      3  * Copyright (c) 2010 Ben Gruver (JesusFreke)
      4  * All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. The name of the author may not be used to endorse or promote products
     15  *    derived from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 package org.jf.baksmali.Adaptors;
     30 
     31 import org.jf.util.IndentingWriter;
     32 import org.jf.baksmali.baksmali;
     33 
     34 import java.io.IOException;
     35 
     36 public class LabelMethodItem extends MethodItem {
     37     private final String labelPrefix;
     38     private int labelSequence;
     39 
     40     public LabelMethodItem(int codeAddress, String labelPrefix) {
     41         super(codeAddress);
     42         this.labelPrefix = labelPrefix;
     43     }
     44 
     45     public double getSortOrder() {
     46         return 0;
     47     }
     48 
     49     public int compareTo(MethodItem methodItem) {
     50         int result = super.compareTo(methodItem);
     51 
     52         if (result == 0) {
     53             if (methodItem instanceof LabelMethodItem) {
     54                 result = labelPrefix.compareTo(((LabelMethodItem)methodItem).labelPrefix);
     55             }
     56         }
     57         return result;
     58     }
     59 
     60     public int hashCode() {
     61         //force it to call equals when two labels are at the same address
     62         return getCodeAddress();
     63     }
     64 
     65     public boolean equals(Object o) {
     66         if (!(o instanceof LabelMethodItem)) {
     67             return false;
     68         }
     69         return this.compareTo((MethodItem)o) == 0;
     70     }
     71 
     72 
     73     public boolean writeTo(IndentingWriter writer) throws IOException {
     74         writer.write(':');
     75         writer.write(labelPrefix);
     76         if (baksmali.useSequentialLabels) {
     77             writer.printUnsignedLongAsHex(labelSequence);
     78         } else {
     79             writer.printUnsignedLongAsHex(this.getLabelAddress());
     80         }
     81         return true;
     82     }
     83 
     84     public String getLabelPrefix() {
     85         return labelPrefix;
     86     }
     87 
     88     public int getLabelAddress() {
     89         return this.getCodeAddress();
     90     }
     91 
     92     public int getLabelSequence() {
     93         return labelSequence;
     94     }
     95 
     96     public void setLabelSequence(int labelSequence) {
     97         this.labelSequence = labelSequence;
     98     }
     99 }
    100