1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * https://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.bcel.generic;
20
21 import java.io.DataOutputStream;
22 import java.io.IOException;
23
24 import org.apache.bcel.classfile.ClassElementValue;
25 import org.apache.bcel.classfile.ConstantUtf8;
26 import org.apache.bcel.classfile.ElementValue;
27
28 /**
29 * @since 6.0
30 */
31 public class ClassElementValueGen extends ElementValueGen {
32 // For primitive types and string type, this points to the value entry in
33 // the cpool
34 // For 'class' this points to the class entry in the cpool
35 private final int idx;
36
37 public ClassElementValueGen(final ClassElementValue value, final ConstantPoolGen cpool, final boolean copyPoolEntries) {
38 super(CLASS, cpool);
39 if (copyPoolEntries) {
40 // idx = cpool.addClass(value.getClassString());
41 idx = cpool.addUtf8(value.getClassString());
42 } else {
43 idx = value.getIndex();
44 }
45 }
46
47 protected ClassElementValueGen(final int typeIdx, final ConstantPoolGen cpool) {
48 super(CLASS, cpool);
49 this.idx = typeIdx;
50 }
51
52 public ClassElementValueGen(final ObjectType t, final ConstantPoolGen cpool) {
53 super(CLASS, cpool);
54 // this.idx = cpool.addClass(t);
55 idx = cpool.addUtf8(t.getSignature());
56 }
57
58 @Override
59 public void dump(final DataOutputStream dos) throws IOException {
60 dos.writeByte(super.getElementValueType()); // u1 kind of value
61 dos.writeShort(idx);
62 }
63
64 public String getClassString() {
65 final ConstantUtf8 cu8 = (ConstantUtf8) getConstantPool().getConstant(idx);
66 return cu8.getBytes();
67 // ConstantClass c = (ConstantClass) getConstantPool().getConstant(idx);
68 // ConstantUtf8 utf8 =
69 // (ConstantUtf8) getConstantPool().getConstant(c.getNameIndex());
70 // return utf8.getBytes();
71 }
72
73 /**
74 * Return immutable variant of this ClassElementValueGen
75 */
76 @Override
77 public ElementValue getElementValue() {
78 return new ClassElementValue(super.getElementValueType(), idx, getConstantPool().getConstantPool());
79 }
80
81 public int getIndex() {
82 return idx;
83 }
84
85 @Override
86 public String stringifyValue() {
87 return getClassString();
88 }
89 }