org.eclipse.jdt.internal.core.util.SignatureAttribute Maven / Gradle / Ivy
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/*******************************************************************************
* Copyright (c) 2000, 2009 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* 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.ISignatureAttribute;
/**
* @since 3.0
*/
public class SignatureAttribute extends ClassFileAttribute implements ISignatureAttribute {
private final int signatureIndex;
private final char[] signature;
SignatureAttribute(byte[] classFileBytes, IConstantPool constantPool, int offset) throws ClassFormatException {
super(classFileBytes, constantPool, offset);
final int index = u2At(classFileBytes, 6, offset);
this.signatureIndex = index;
IConstantPoolEntry constantPoolEntry = constantPool.decodeEntry(index);
if (constantPoolEntry.getKind() != IConstantPoolConstant.CONSTANT_Utf8) {
throw new ClassFormatException(ClassFormatException.INVALID_CONSTANT_POOL_ENTRY);
}
this.signature = constantPoolEntry.getUtf8Value();
}
@Override
public int getSignatureIndex() {
return this.signatureIndex;
}
@Override
public char[] getSignature() {
return this.signature;
}
}