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1
32
33 package com.jeantessier.classreader;
34
35 import java.io.*;
36
37 import org.apache.log4j.*;
38
39 public class ExceptionHandler implements Visitable {
40 private Code_attribute code;
41 private int startPC;
42 private int endPC;
43 private int handlerPC;
44 private int catchTypeIndex;
45
46 public ExceptionHandler(Code_attribute code, DataInputStream in) throws IOException {
47 this.code = code;
48
49 startPC = in.readUnsignedShort();
50 Logger.getLogger(getClass()).debug("start PC: " + startPC);
51
52 endPC = in.readUnsignedShort();
53 Logger.getLogger(getClass()).debug("end PC: " + endPC);
54
55 handlerPC = in.readUnsignedShort();
56 Logger.getLogger(getClass()).debug("handler PC: " + handlerPC);
57
58 catchTypeIndex = in.readUnsignedShort();
59 Logger.getLogger(getClass()).debug("catch type index: " + catchTypeIndex + " (" + getCatchType() + ")");
60 }
61
62 public Code_attribute getCode() {
63 return code;
64 }
65
66 public int getStartPC() {
67 return startPC;
68 }
69
70 public int getEndPC() {
71 return endPC;
72 }
73
74 public int getHandlerPC() {
75 return handlerPC;
76 }
77
78 public int getCatchTypeIndex() {
79 return catchTypeIndex;
80 }
81
82 public Class_info getRawCatchType() {
83 return (Class_info) code.getClassfile().getConstantPool().get(getCatchTypeIndex());
84 }
85
86 public String  getCatchType() {
87 String result = "<none>";
88
89 if (getCatchTypeIndex() != 0) {
90 result = getRawCatchType().toString();
91 }
92
93 return result;
94 }
95
96 public String toString() {
97 return "ExceptionHandler for " + getCatchType();
98 }
99
100 public void accept(Visitor visitor) {
101 visitor.visitExceptionHandler(this);
102 }
103 }
104 |
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