1 /*
2  * reserved comment block
3  * DO NOT REMOVE OR ALTER!
4  */
5 /*
6  * Licensed to the Apache Software Foundation (ASF) under one or more
7  * contributor license agreements.  See the NOTICE file distributed with
8  * this work for additional information regarding copyright ownership.
9  * The ASF licenses this file to You under the Apache License, Version 2.0
10  * (the "License"); you may not use this file except in compliance with
11  * the License.  You may obtain a copy of the License at
12  *
13  *      http://www.apache.org/licenses/LICENSE-2.0
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15  * Unless required by applicable law or agreed to in writing, software
16  * distributed under the License is distributed on an "AS IS" BASIS,
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18  * See the License for the specific language governing permissions and
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20  */
21 
22 package com.sun.org.apache.bcel.internal.generic;
23 
24 import com.sun.org.apache.bcel.internal.classfile.ConstantCP;
25 import com.sun.org.apache.bcel.internal.classfile.ConstantNameAndType;
26 import com.sun.org.apache.bcel.internal.classfile.ConstantPool;
27 import com.sun.org.apache.bcel.internal.classfile.ConstantUtf8;
28 
29 /**
30  * Super class for FieldOrMethod and INVOKEDYNAMIC, since they both have
31  * names and signatures
32  *
33  * @since 6.0
34  */
35 public abstract class NameSignatureInstruction extends CPInstruction {
36 
NameSignatureInstruction()37     public NameSignatureInstruction() {
38         super();
39     }
40 
NameSignatureInstruction(final short opcode, final int index)41     public NameSignatureInstruction(final short opcode, final int index) {
42         super(opcode, index);
43     }
44 
getNameAndType(final ConstantPoolGen cpg)45     public ConstantNameAndType getNameAndType(final ConstantPoolGen cpg) {
46         final ConstantPool cp = cpg.getConstantPool();
47         final ConstantCP cmr = (ConstantCP) cp.getConstant(super.getIndex());
48         return  (ConstantNameAndType) cp.getConstant(cmr.getNameAndTypeIndex());
49     }
50     /** @return signature of referenced method/field.
51      */
getSignature(final ConstantPoolGen cpg)52     public String getSignature(final ConstantPoolGen cpg) {
53         final ConstantPool cp = cpg.getConstantPool();
54         final ConstantNameAndType cnat = getNameAndType(cpg);
55         return ((ConstantUtf8) cp.getConstant(cnat.getSignatureIndex())).getBytes();
56     }
57 
58     /** @return name of referenced method/field.
59      */
getName(final ConstantPoolGen cpg)60     public String getName(final ConstantPoolGen cpg) {
61         final ConstantPool cp = cpg.getConstantPool();
62         final ConstantNameAndType cnat = getNameAndType(cpg);
63         return ((ConstantUtf8) cp.getConstant(cnat.getNameIndex())).getBytes();
64     }
65 
66 }
67