001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 * 017 */ 018package org.apache.bcel.generic; 019 020/** 021 * Super class for the IFxxx family of instructions. 022 * 023 */ 024public abstract class IfInstruction extends BranchInstruction implements StackConsumer { 025 026 /** 027 * Empty constructor needed for Instruction.readInstruction. 028 * Not to be used otherwise. 029 */ 030 IfInstruction() { 031 } 032 033 034 /** 035 * @param opcode opcode of instruction 036 * @param target Target instruction to branch to 037 */ 038 protected IfInstruction(final short opcode, final InstructionHandle target) { 039 super(opcode, target); 040 } 041 042 043 /** 044 * @return negation of instruction, e.g. IFEQ.negate() == IFNE 045 */ 046 public abstract IfInstruction negate(); 047}