org.eclipse.jdt.internal.core.util.BootstrapMethodsAttribute Maven / Gradle / Ivy
/*******************************************************************************
* Copyright (c) 2011 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.IBootstrapMethodsAttribute;
import org.eclipse.jdt.core.util.IBootstrapMethodsEntry;
import org.eclipse.jdt.core.util.IConstantPool;
/**
* Default implementation of IBootstrapMethodsAttribute.
*/
public class BootstrapMethodsAttribute extends ClassFileAttribute implements IBootstrapMethodsAttribute {
private static final IBootstrapMethodsEntry[] NO_ENTRIES = new IBootstrapMethodsEntry[0];
private IBootstrapMethodsEntry[] entries;
private int numberOfBootstrapMethods;
/**
* Constructor for BootstrapMethodsAttribute.
* @param classFileBytes
* @param constantPool
* @param offset
* @throws ClassFormatException
*/
public BootstrapMethodsAttribute(
byte[] classFileBytes,
IConstantPool constantPool,
int offset) throws ClassFormatException {
super(classFileBytes, constantPool, offset);
this.numberOfBootstrapMethods = u2At(classFileBytes, 6, offset);
final int length = this.numberOfBootstrapMethods;
if (length != 0) {
int readOffset = 8;
this.entries = new IBootstrapMethodsEntry[length];
BootstrapMethodsEntry entry;
for (int i = 0; i < length; i++) {
this.entries[i] = entry = new BootstrapMethodsEntry(classFileBytes, constantPool, offset + readOffset);
readOffset += 4 + 2 * entry.getBootstrapArguments().length;
}
} else {
this.entries = NO_ENTRIES;
}
}
/**
* @see IBootstrapMethodsAttribute#getBootstrapMethods()
*/
public IBootstrapMethodsEntry[] getBootstrapMethods() {
return this.entries;
}
public int getBootstrapMethodsLength() {
return this.numberOfBootstrapMethods;
}
}