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.generic;
18
19 /**
20 * Super class for the IFxxx family of instructions.
21 */
22 public abstract class IfInstruction extends BranchInstruction implements StackConsumer {
23
24 /**
25 * Empty constructor needed for Instruction.readInstruction. Not to be used otherwise.
26 */
27 IfInstruction() {
28 }
29
30 /**
31 * @param opcode opcode of instruction
32 * @param target Target instruction to branch to
33 */
34 protected IfInstruction(final short opcode, final InstructionHandle target) {
35 super(opcode, target);
36 }
37
38 /**
39 * @return negation of instruction, e.g. IFEQ.negate() == IFNE
40 */
41 public abstract IfInstruction negate();
42 }