View Javadoc
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   */
18  package org.apache.bcel.generic;
19  
20  /**
21   * IF_ACMPNE - Branch if reference comparison doesn't succeed
22   *
23   * <PRE>Stack: ..., value1, value2 -&gt; ...</PRE>
24   *
25   * @version $Id: IF_ACMPNE.html 1021978 2017-12-09 17:38:21Z ggregory $
26   */
27  public class IF_ACMPNE extends IfInstruction {
28  
29      /**
30       * Empty constructor needed for Instruction.readInstruction.
31       * Not to be used otherwise.
32       */
33      IF_ACMPNE() {
34      }
35  
36  
37      public IF_ACMPNE(final InstructionHandle target) {
38          super(org.apache.bcel.Const.IF_ACMPNE, target);
39      }
40  
41  
42      /**
43       * @return negation of instruction
44       */
45      @Override
46      public IfInstruction negate() {
47          return new IF_ACMPEQ(super.getTarget());
48      }
49  
50  
51      /**
52       * Call corresponding visitor method(s). The order is:
53       * Call visitor methods of implemented interfaces first, then
54       * call methods according to the class hierarchy in descending order,
55       * i.e., the most specific visitXXX() call comes last.
56       *
57       * @param v Visitor object
58       */
59      @Override
60      public void accept( final Visitor v ) {
61          v.visitStackConsumer(this);
62          v.visitBranchInstruction(this);
63          v.visitIfInstruction(this);
64          v.visitIF_ACMPNE(this);
65      }
66  }