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 * reserved comment block

 * DO NOT REMOVE OR ALTER!

 */

/*

 * Licensed to the Apache Software Foundation (ASF) under one or more

 * contributor license agreements.  See the NOTICE file distributed with

 * this work for additional information regarding copyright ownership.

 * The ASF licenses this file to You under the Apache License, Version 2.0

 * (the "License"); you may not use this file except in compliance with

 * the License.  You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

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package com.sun.org.apache.bcel.internal.generic;

import com.sun.org.apache.bcel.internal.classfile.ConstantCP;

import com.sun.org.apache.bcel.internal.classfile.ConstantNameAndType;

import com.sun.org.apache.bcel.internal.classfile.ConstantPool;

import com.sun.org.apache.bcel.internal.classfile.ConstantUtf8;

/**

 * Super class for FieldOrMethod and INVOKEDYNAMIC, since they both have

 * names and signatures

 *

 * @version $Id: FieldOrMethod.java 1481383 2013-05-11 17:34:32Z dbrosius $

 * @since 6.0

 */

public abstract class NameSignatureInstruction extends CPInstruction {

    public NameSignatureInstruction() {

        super();

    }

    public NameSignatureInstruction(final short opcode, final int index) {

        super(opcode, index);

    }

    public ConstantNameAndType getNameAndType(final ConstantPoolGen cpg) {

        final ConstantPool cp = cpg.getConstantPool();

        final ConstantCP cmr = (ConstantCP) cp.getConstant(super.getIndex());

        return  (ConstantNameAndType) cp.getConstant(cmr.getNameAndTypeIndex());

    }

    /** @return signature of referenced method/field.

     */

    public String getSignature(final ConstantPoolGen cpg) {

        final ConstantPool cp = cpg.getConstantPool();

        final ConstantNameAndType cnat = getNameAndType(cpg);

        return ((ConstantUtf8) cp.getConstant(cnat.getSignatureIndex())).getBytes();

    }

    /** @return name of referenced method/field.

     */

    public String getName(final ConstantPoolGen cpg) {

        final ConstantPool cp = cpg.getConstantPool();

        final ConstantNameAndType cnat = getNameAndType(cpg);

        return ((ConstantUtf8) cp.getConstant(cnat.getNameIndex())).getBytes();

    }

}