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  * Super class for the IFxxx family of instructions.
22  *
23  * @version $Id$
24  */
25 public abstract class IfInstruction extends BranchInstruction implements StackConsumer {
26 
27     /**
28      * Empty constructor needed for Instruction.readInstruction.
29      * Not to be used otherwise.
30      */
IfInstruction()31     IfInstruction() {
32     }
33 
34 
35     /**
36      * @param opcode opcode of instruction
37      * @param target Target instruction to branch to
38      */
IfInstruction(final short opcode, final InstructionHandle target)39     protected IfInstruction(final short opcode, final InstructionHandle target) {
40         super(opcode, target);
41     }
42 
43 
44     /**
45      * @return negation of instruction, e.g. IFEQ.negate() == IFNE
46      */
negate()47     public abstract IfInstruction negate();
48 }
49