1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.bcel.generic;
18
19 import java.io.DataOutputStream;
20 import java.io.IOException;
21
22 import org.apache.bcel.classfile.ClassElementValue;
23 import org.apache.bcel.classfile.ConstantUtf8;
24 import org.apache.bcel.classfile.ElementValue;
25
26 /**
27 * @since 6.0
28 */
29 public class ClassElementValueGen extends ElementValueGen {
30 // For primitive types and string type, this points to the value entry in
31 // the cpool
32 // For 'class' this points to the class entry in the cpool
33 private final int idx;
34
35 public ClassElementValueGen(final ClassElementValue value, final ConstantPoolGen cpool, final boolean copyPoolEntries) {
36 super(CLASS, cpool);
37 if (copyPoolEntries) {
38 // idx = cpool.addClass(value.getClassString());
39 idx = cpool.addUtf8(value.getClassString());
40 } else {
41 idx = value.getIndex();
42 }
43 }
44
45 protected ClassElementValueGen(final int typeIdx, final ConstantPoolGen cpool) {
46 super(ElementValueGen.CLASS, cpool);
47 this.idx = typeIdx;
48 }
49
50 public ClassElementValueGen(final ObjectType t, final ConstantPoolGen cpool) {
51 super(ElementValueGen.CLASS, cpool);
52 // this.idx = cpool.addClass(t);
53 idx = cpool.addUtf8(t.getSignature());
54 }
55
56 @Override
57 public void dump(final DataOutputStream dos) throws IOException {
58 dos.writeByte(super.getElementValueType()); // u1 kind of value
59 dos.writeShort(idx);
60 }
61
62 public String getClassString() {
63 final ConstantUtf8 cu8 = (ConstantUtf8) getConstantPool().getConstant(idx);
64 return cu8.getBytes();
65 // ConstantClass c = (ConstantClass)getConstantPool().getConstant(idx);
66 // ConstantUtf8 utf8 =
67 // (ConstantUtf8)getConstantPool().getConstant(c.getNameIndex());
68 // return utf8.getBytes();
69 }
70
71 /**
72 * Return immutable variant of this ClassElementValueGen
73 */
74 @Override
75 public ElementValue getElementValue() {
76 return new ClassElementValue(super.getElementValueType(), idx, getConstantPool().getConstantPool());
77 }
78
79 public int getIndex() {
80 return idx;
81 }
82
83 @Override
84 public String stringifyValue() {
85 return getClassString();
86 }
87 }