org.eclipse.jdt.internal.core.util.LocalVariableTableEntry 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.ILocalVariableTableEntry;
/**
* Default implementation of ILocalVariableTableEntry
*/
public class LocalVariableTableEntry extends ClassFileStruct implements ILocalVariableTableEntry {
private final int startPC;
private final int length;
private final int nameIndex;
private final int descriptorIndex;
private final char[] name;
private final char[] descriptor;
private final int index;
/**
* Constructor for LocalVariableTableEntry.
*/
public LocalVariableTableEntry(
byte[] classFileBytes,
IConstantPool constantPool,
int offset) throws ClassFormatException {
this.startPC = u2At(classFileBytes, 0, offset);
this.length = u2At(classFileBytes, 2, offset);
this.nameIndex = u2At(classFileBytes, 4, offset);
this.descriptorIndex = u2At(classFileBytes, 6, offset);
this.index = u2At(classFileBytes, 8, offset);
IConstantPoolEntry constantPoolEntry = constantPool.decodeEntry(this.nameIndex);
if (constantPoolEntry.getKind() != IConstantPoolConstant.CONSTANT_Utf8) {
throw new ClassFormatException(ClassFormatException.INVALID_CONSTANT_POOL_ENTRY);
}
this.name = constantPoolEntry.getUtf8Value();
constantPoolEntry = constantPool.decodeEntry(this.descriptorIndex);
if (constantPoolEntry.getKind() != IConstantPoolConstant.CONSTANT_Utf8) {
throw new ClassFormatException(ClassFormatException.INVALID_CONSTANT_POOL_ENTRY);
}
this.descriptor = constantPoolEntry.getUtf8Value();
}
/**
* @see ILocalVariableTableEntry#getStartPC()
*/
@Override
public int getStartPC() {
return this.startPC;
}
/**
* @see ILocalVariableTableEntry#getLength()
*/
@Override
public int getLength() {
return this.length;
}
/**
* @see ILocalVariableTableEntry#getNameIndex()
*/
@Override
public int getNameIndex() {
return this.nameIndex;
}
/**
* @see ILocalVariableTableEntry#getDescriptorIndex()
*/
@Override
public int getDescriptorIndex() {
return this.descriptorIndex;
}
/**
* @see ILocalVariableTableEntry#getIndex()
*/
@Override
public int getIndex() {
return this.index;
}
/**
* @see ILocalVariableTableEntry#getName()
*/
@Override
public char[] getName() {
return this.name;
}
/**
* @see ILocalVariableTableEntry#getDescriptor()
*/
@Override
public char[] getDescriptor() {
return this.descriptor;
}
}