| 1 | /* |
| 2 | * Copyright (c) 2001-2009, Jean Tessier |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * |
| 9 | * * Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * |
| 12 | * * Redistributions in binary form must reproduce the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer in the |
| 14 | * documentation and/or other materials provided with the distribution. |
| 15 | * |
| 16 | * * Neither the name of Jean Tessier nor the names of his contributors |
| 17 | * may be used to endorse or promote products derived from this software |
| 18 | * without specific prior written permission. |
| 19 | * |
| 20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 21 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 22 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 23 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR |
| 24 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| 25 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 26 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 27 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| 28 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| 29 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 30 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 31 | */ |
| 32 | |
| 33 | package com.jeantessier.classreader.impl; |
| 34 | |
| 35 | import java.io.*; |
| 36 | |
| 37 | import org.apache.log4j.*; |
| 38 | |
| 39 | import com.jeantessier.classreader.*; |
| 40 | |
| 41 | public class LocalVariable implements com.jeantessier.classreader.LocalVariable { |
| 42 | private LocalVariableTable_attribute localVariableTable; |
| 43 | private int startPC; |
| 44 | private int length; |
| 45 | private int nameIndex; |
| 46 | private int descriptorIndex; |
| 47 | private int index; |
| 48 | |
| 49 | public LocalVariable(LocalVariableTable_attribute localVariableTable, DataInput in) throws IOException { |
| 50 | this.localVariableTable = localVariableTable; |
| 51 | |
| 52 | startPC = in.readUnsignedShort(); |
| 53 | Logger.getLogger(getClass()).debug("start PC: " + startPC); |
| 54 | |
| 55 | length = in.readUnsignedShort(); |
| 56 | Logger.getLogger(getClass()).debug("length: " + length); |
| 57 | |
| 58 | nameIndex = in.readUnsignedShort(); |
| 59 | Logger.getLogger(getClass()).debug("name: " + nameIndex + " (" + getName() + ")"); |
| 60 | |
| 61 | descriptorIndex = in.readUnsignedShort(); |
| 62 | Logger.getLogger(getClass()).debug("descriptor: " + descriptorIndex + " (" + getDescriptor() + ")"); |
| 63 | |
| 64 | index = in.readUnsignedShort(); |
| 65 | Logger.getLogger(getClass()).debug("index: " + index); |
| 66 | } |
| 67 | |
| 68 | public LocalVariableTable_attribute getLocalVariableTable() { |
| 69 | return localVariableTable; |
| 70 | } |
| 71 | |
| 72 | public int getStartPC() { |
| 73 | return startPC; |
| 74 | } |
| 75 | |
| 76 | public int getLength() { |
| 77 | return length; |
| 78 | } |
| 79 | |
| 80 | public int getNameIndex() { |
| 81 | return nameIndex; |
| 82 | } |
| 83 | |
| 84 | public UTF8_info getRawName() { |
| 85 | return (UTF8_info) getLocalVariableTable().getConstantPool().get(getNameIndex()); |
| 86 | } |
| 87 | |
| 88 | public String getName() { |
| 89 | return getRawName().getValue(); |
| 90 | } |
| 91 | |
| 92 | public int getDescriptorIndex() { |
| 93 | return descriptorIndex; |
| 94 | } |
| 95 | |
| 96 | public UTF8_info getRawDescriptor() { |
| 97 | return (UTF8_info) getLocalVariableTable().getConstantPool().get(getDescriptorIndex()); |
| 98 | } |
| 99 | |
| 100 | public String getDescriptor() { |
| 101 | return getRawDescriptor().getValue(); |
| 102 | } |
| 103 | |
| 104 | public int getIndex() { |
| 105 | return index; |
| 106 | } |
| 107 | |
| 108 | public String toString() { |
| 109 | return DescriptorHelper.getType(getDescriptor()) + " " + getName(); |
| 110 | } |
| 111 | |
| 112 | public void accept(Visitor visitor) { |
| 113 | visitor.visitLocalVariable(this); |
| 114 | } |
| 115 | } |