org.eclipse.jdt.internal.core.util.ExceptionAttribute Maven / Gradle / Ivy
/*******************************************************************************
* Copyright (c) 2000, 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.compiler.CharOperation;
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.IExceptionAttribute;
/**
* Default implementation of IExceptionAttribute.
*/
public class ExceptionAttribute extends ClassFileAttribute implements IExceptionAttribute {
private int exceptionsNumber;
private char[][] exceptionNames;
private int[] exceptionIndexes;
ExceptionAttribute(byte[] classFileBytes, IConstantPool constantPool, int offset) throws ClassFormatException {
super(classFileBytes, constantPool, offset);
this.exceptionsNumber = u2At(classFileBytes, 6, offset);
int exceptionLength = this.exceptionsNumber;
this.exceptionNames = CharOperation.NO_CHAR_CHAR;
this.exceptionIndexes = org.eclipse.jdt.internal.compiler.util.Util.EMPTY_INT_ARRAY;
if (exceptionLength != 0) {
this.exceptionNames = new char[exceptionLength][];
this.exceptionIndexes = new int[exceptionLength];
}
int readOffset = 8;
IConstantPoolEntry constantPoolEntry;
for (int i = 0; i < exceptionLength; i++) {
this.exceptionIndexes[i] = u2At(classFileBytes, readOffset, offset);
constantPoolEntry = constantPool.decodeEntry(this.exceptionIndexes[i]);
if (constantPoolEntry.getKind() != IConstantPoolConstant.CONSTANT_Class) {
throw new ClassFormatException(ClassFormatException.INVALID_CONSTANT_POOL_ENTRY);
}
this.exceptionNames[i] = constantPoolEntry.getClassInfoName();
readOffset += 2;
}
}
/**
* @see IExceptionAttribute#getExceptionIndexes()
*/
public int[] getExceptionIndexes() {
return this.exceptionIndexes;
}
/**
* @see IExceptionAttribute#getExceptionNames()
*/
public char[][] getExceptionNames() {
return this.exceptionNames;
}
/**
* @see IExceptionAttribute#getExceptionsNumber()
*/
public int getExceptionsNumber() {
return this.exceptionsNumber;
}
}