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