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1
11 package org.eclipse.jdt.internal.core.util;
12
13 import org.eclipse.jdt.core.util.ClassFormatException;
14 import org.eclipse.jdt.core.util.IConstantPool;
15 import org.eclipse.jdt.core.util.IConstantPoolConstant;
16 import org.eclipse.jdt.core.util.IConstantPoolEntry;
17 import org.eclipse.jdt.core.util.IVerificationTypeInfo;
18
19 public class VerificationInfo extends ClassFileStruct implements IVerificationTypeInfo {
20
21 private int tag;
22 private int offset;
23 private int constantPoolIndex;
24 private char[] classTypeName;
25 private int readOffset;
26
27 public VerificationInfo(
28 byte[] classFileBytes,
29 IConstantPool constantPool,
30 int offset) throws ClassFormatException {
31 final int t = u1At(classFileBytes, 0, offset);
32 this.tag = t;
33 this.readOffset = 1;
34 switch(t) {
35 case IVerificationTypeInfo.ITEM_OBJECT :
36 final int constantIndex = u2At(classFileBytes, 1, offset);
37 this.constantPoolIndex = constantIndex;
38 if (constantIndex != 0) {
39 IConstantPoolEntry constantPoolEntry = constantPool.decodeEntry(constantIndex);
40 if (constantPoolEntry.getKind() != IConstantPoolConstant.CONSTANT_Class) {
41 throw new ClassFormatException(ClassFormatException.INVALID_CONSTANT_POOL_ENTRY);
42 }
43 this.classTypeName = constantPoolEntry.getClassInfoName();
44 }
45 this.readOffset += 2;
46 break;
47 case IVerificationTypeInfo.ITEM_UNINITIALIZED :
48 this.offset = u2At(classFileBytes, 1, offset);
49 this.readOffset += 2;
50 }
51 }
52
53 public int getTag() {
54 return this.tag;
55 }
56
57 public int getOffset() {
58 return this.offset;
59 }
60
61 public int getConstantPoolIndex() {
62 return this.constantPoolIndex;
63 }
64
65 public char[] getClassTypeName() {
66 return this.classTypeName;
67 }
68
69 public int sizeInBytes() {
70 return this.readOffset;
71 }
72 }
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