1/* 2 * reserved comment block 3 * DO NOT REMOVE OR ALTER! 4 */ 5/* 6 * Licensed to the Apache Software Foundation (ASF) under one or more 7 * contributor license agreements. See the NOTICE file distributed with 8 * this work for additional information regarding copyright ownership. 9 * The ASF licenses this file to You under the Apache License, Version 2.0 10 * (the "License"); you may not use this file except in compliance with 11 * the License. You may obtain a copy of the License at 12 * 13 * http://www.apache.org/licenses/LICENSE-2.0 14 * 15 * Unless required by applicable law or agreed to in writing, software 16 * distributed under the License is distributed on an "AS IS" BASIS, 17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 18 * See the License for the specific language governing permissions and 19 * limitations under the License. 20 */ 21 22package com.sun.org.apache.bcel.internal.generic; 23 24 25/** 26 * ICONST - Push value between -1, ..., 5, other values cause an exception 27 * 28 * <PRE>Stack: ... -> ..., </PRE> 29 * 30 * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A> 31 */ 32public class ICONST extends Instruction 33 implements ConstantPushInstruction, TypedInstruction { 34 private int value; 35 36 /** 37 * Empty constructor needed for the Class.newInstance() statement in 38 * Instruction.readInstruction(). Not to be used otherwise. 39 */ 40 ICONST() {} 41 42 public ICONST(int i) { 43 super(com.sun.org.apache.bcel.internal.Constants.ICONST_0, (short)1); 44 45 if((i >= -1) && (i <= 5)) 46 opcode = (short)(com.sun.org.apache.bcel.internal.Constants.ICONST_0 + i); // Even works for i == -1 47 else 48 throw new ClassGenException("ICONST can be used only for value between -1 and 5: " + 49 i); 50 value = i; 51 } 52 53 public Number getValue() { return new Integer(value); } 54 55 /** @return Type.INT 56 */ 57 public Type getType(ConstantPoolGen cp) { 58 return Type.INT; 59 } 60 61 /** 62 * Call corresponding visitor method(s). The order is: 63 * Call visitor methods of implemented interfaces first, then 64 * call methods according to the class hierarchy in descending order, 65 * i.e., the most specific visitXXX() call comes last. 66 * 67 * @param v Visitor object 68 */ 69 public void accept(Visitor v) { 70 v.visitPushInstruction(this); 71 v.visitStackProducer(this); 72 v.visitTypedInstruction(this); 73 v.visitConstantPushInstruction(this); 74 v.visitICONST(this); 75 } 76} 77