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/*******************************************************************************
* Copyright (c) 2004, 2009 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jdt.internal.core.util;
import org.eclipse.jdt.core.util.ClassFormatException;
import org.eclipse.jdt.core.util.IConstantPool;
import org.eclipse.jdt.core.util.IConstantPoolConstant;
import org.eclipse.jdt.core.util.IConstantPoolEntry;
import org.eclipse.jdt.core.util.IVerificationTypeInfo;
public class VerificationInfo extends ClassFileStruct implements IVerificationTypeInfo {
private int tag;
private int offset;
private int constantPoolIndex;
private char[] classTypeName;
private int readOffset;
public VerificationInfo(
byte[] classFileBytes,
IConstantPool constantPool,
int offset) throws ClassFormatException {
final int t = u1At(classFileBytes, 0, offset);
this.tag = t;
this.readOffset = 1;
switch(t) {
case IVerificationTypeInfo.ITEM_OBJECT :
final int constantIndex = u2At(classFileBytes, 1, offset);
this.constantPoolIndex = constantIndex;
if (constantIndex != 0) {
IConstantPoolEntry constantPoolEntry = constantPool.decodeEntry(constantIndex);
if (constantPoolEntry.getKind() != IConstantPoolConstant.CONSTANT_Class) {
throw new ClassFormatException(ClassFormatException.INVALID_CONSTANT_POOL_ENTRY);
}
this.classTypeName = constantPoolEntry.getClassInfoName();
}
this.readOffset += 2;
break;
case IVerificationTypeInfo.ITEM_UNINITIALIZED :
this.offset = u2At(classFileBytes, 1, offset);
this.readOffset += 2;
}
}
public int getTag() {
return this.tag;
}
public int getOffset() {
return this.offset;
}
public int getConstantPoolIndex() {
return this.constantPoolIndex;
}
public char[] getClassTypeName() {
return this.classTypeName;
}
public int sizeInBytes() {
return this.readOffset;
}
}
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