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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.verifier.tests;
18  
19  import static org.junit.jupiter.api.Assertions.assertNotNull;
20  
21  import java.io.IOException;
22  import java.io.OutputStream;
23  
24  import org.apache.bcel.Const;
25  import org.apache.bcel.generic.ClassGen;
26  import org.apache.bcel.generic.ConstantPoolGen;
27  import org.apache.bcel.generic.InstructionConst;
28  import org.apache.bcel.generic.InstructionFactory;
29  import org.apache.bcel.generic.InstructionHandle;
30  import org.apache.bcel.generic.InstructionList;
31  import org.apache.bcel.generic.MethodGen;
32  import org.apache.bcel.generic.ObjectType;
33  import org.apache.bcel.generic.PUSH;
34  import org.apache.bcel.generic.Type;
35  
36  public class TestArrayAccess03Creator extends TestCreator {
37      private final InstructionFactory factory;
38      private final ConstantPoolGen cp;
39      private final ClassGen cg;
40  
41      public TestArrayAccess03Creator() {
42          cg = new ClassGen(TEST_PACKAGE + ".TestArrayAccess03", "java.lang.Object", "TestArrayAccess03.java", Const.ACC_PUBLIC | Const.ACC_SUPER,
43              new String[] {});
44  
45          cp = cg.getConstantPool();
46          factory = new InstructionFactory(cg, cp);
47      }
48  
49      @Override
50      public void create(final OutputStream out) throws IOException {
51          createMethod_0();
52          createMethod_1();
53          cg.getJavaClass().dump(out);
54      }
55  
56      private void createMethod_0() {
57          final InstructionList il = new InstructionList();
58          final MethodGen method = new MethodGen(Const.ACC_PUBLIC, Type.VOID, Type.NO_ARGS, new String[] {}, "<init>", TEST_PACKAGE + ".TestArrayAccess03", il,
59              cp);
60  
61          final InstructionHandle ih_0 = il.append(InstructionFactory.createLoad(Type.OBJECT, 0));
62          assertNotNull(ih_0); // TODO why is this not used
63          il.append(factory.createInvoke("java.lang.Object", "<init>", Type.VOID, Type.NO_ARGS, Const.INVOKESPECIAL));
64          final InstructionHandle ih_4 = il.append(InstructionFactory.createReturn(Type.VOID));
65          assertNotNull(ih_4); // TODO why is this not used
66          method.setMaxStack();
67          method.setMaxLocals();
68          cg.addMethod(method.getMethod());
69          il.dispose();
70      }
71  
72      private void createMethod_1() {
73          final InstructionList il = new InstructionList();
74          final MethodGen method = new MethodGen(Const.ACC_PUBLIC | Const.ACC_STATIC, Type.VOID, new Type[] {Type.OBJECT}, new String[] {"arg0"}, "test",
75              TEST_PACKAGE + ".TestArrayAccess03", il, cp);
76  
77          final InstructionHandle ih_0 = il.append(new PUSH(cp, 1));
78          assertNotNull(ih_0); // TODO why is this not used
79          il.append(factory.createNewArray(new ObjectType(TEST_PACKAGE + ".TestArrayAccess03"), (short) 1));
80          il.append(InstructionFactory.createStore(Type.OBJECT, 1));
81          final InstructionHandle ih_5 = il.append(InstructionFactory.createLoad(Type.OBJECT, 0));
82          assertNotNull(ih_5); // TODO why is this not used
83          il.append(new PUSH(cp, 0));
84          il.append(factory.createNew(TEST_PACKAGE + ".TestArrayAccess03"));
85          il.append(InstructionConst.DUP);
86          il.append(factory.createInvoke(TEST_PACKAGE + ".TestArrayAccess03", "<init>", Type.VOID, Type.NO_ARGS, Const.INVOKESPECIAL));
87          il.append(InstructionConst.AASTORE);
88          final InstructionHandle ih_15 = il.append(InstructionFactory.createReturn(Type.VOID));
89          assertNotNull(ih_15); // TODO why is this not used
90          method.setMaxStack();
91          method.setMaxLocals();
92          cg.addMethod(method.getMethod());
93          il.dispose();
94      }
95  }