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1
52
53 package com.go.trove.classfile;
54
55 import java.util.*;
56 import java.io.*;
57
58
66 class ExceptionsAttr extends Attribute {
67 private List mExceptions = new ArrayList(2);
68
69 public ExceptionsAttr(ConstantPool cp) {
70 super(cp, EXCEPTIONS);
71 }
72
73 public String  [] getExceptions() {
74 int size = mExceptions.size();
75 String [] names = new String [size];
76
77 for (int i=0; i<size; i++) {
78 names[i] = ((ConstantClassInfo)mExceptions.get(i)).getClassName();
79 }
80
81 return names;
82 }
83
84 public void addException(ConstantClassInfo type) {
85 mExceptions.add(type);
86 }
87
88 public int getLength() {
89 return 2 + 2 * mExceptions.size();
90 }
91
92 public void writeDataTo(DataOutput dout) throws IOException {
93 int size = mExceptions.size();
94 dout.writeShort(size);
95 for (int i=0; i<size; i++) {
96 ConstantClassInfo info = (ConstantClassInfo)mExceptions.get(i);
97 dout.writeShort(info.getIndex());
98 }
99 }
100
101 static Attribute define(ConstantPool cp,
102 String name,
103 int length,
104 DataInput din) throws IOException {
105
106 ExceptionsAttr attr = new ExceptionsAttr(cp);
107
108 int size = din.readUnsignedShort();
109 length -= 2;
110
111 for (int i=0; i<size; i++) {
112 int index = din.readUnsignedShort();
113 length -= 2;
114 ConstantClassInfo info = (ConstantClassInfo)cp.getConstant(index);
115 attr.addException(info);
116 }
117
118 if (length > 0) {
119 din.skipBytes(length);
120 }
121
122 return attr;
123 }
124 }
125 |
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