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 * IFEQ - Branch if int comparison with zero succeeds 022 * 023 * <PRE>Stack: ..., value -> ...</PRE> 024 * 025 * @version $Id: IFEQ.java 1747278 2016-06-07 17:28:43Z britter $ 026 */ 027public class IFEQ extends IfInstruction { 028 029 /** 030 * Empty constructor needed for the Class.newInstance() statement in 031 * Instruction.readInstruction(). Not to be used otherwise. 032 */ 033 IFEQ() { 034 } 035 036 037 public IFEQ(final InstructionHandle target) { 038 super(org.apache.bcel.Const.IFEQ, target); 039 } 040 041 042 /** 043 * @return negation of instruction, e.g. IFEQ.negate() == IFNE 044 */ 045 @Override 046 public IfInstruction negate() { 047 return new IFNE(super.getTarget()); 048 } 049 050 051 /** 052 * Call corresponding visitor method(s). The order is: 053 * Call visitor methods of implemented interfaces first, then 054 * call methods according to the class hierarchy in descending order, 055 * i.e., the most specific visitXXX() call comes last. 056 * 057 * @param v Visitor object 058 */ 059 @Override 060 public void accept( final Visitor v ) { 061 v.visitStackConsumer(this); 062 v.visitBranchInstruction(this); 063 v.visitIfInstruction(this); 064 v.visitIFEQ(this); 065 } 066}