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 22 package com.sun.org.apache.bcel.internal.generic; 23 24 import com.sun.org.apache.bcel.internal.Const; 25 26 /** 27 * Super class for the x2y family of instructions. 28 * 29 */ 30 public abstract class ConversionInstruction extends Instruction implements TypedInstruction, 31 StackProducer, StackConsumer { 32 33 /** 34 * Empty constructor needed for Instruction.readInstruction. 35 * Not to be used otherwise. 36 */ ConversionInstruction()37 ConversionInstruction() { 38 } 39 40 41 /** 42 * @param opcode opcode of instruction 43 */ ConversionInstruction(final short opcode)44 protected ConversionInstruction(final short opcode) { 45 super(opcode, (short) 1); 46 } 47 48 49 /** @return type associated with the instruction 50 */ 51 @Override getType( final ConstantPoolGen cp )52 public Type getType( final ConstantPoolGen cp ) { 53 final short _opcode = super.getOpcode(); 54 switch (_opcode) { 55 case Const.D2I: 56 case Const.F2I: 57 case Const.L2I: 58 return Type.INT; 59 case Const.D2F: 60 case Const.I2F: 61 case Const.L2F: 62 return Type.FLOAT; 63 case Const.D2L: 64 case Const.F2L: 65 case Const.I2L: 66 return Type.LONG; 67 case Const.F2D: 68 case Const.I2D: 69 case Const.L2D: 70 return Type.DOUBLE; 71 case Const.I2B: 72 return Type.BYTE; 73 case Const.I2C: 74 return Type.CHAR; 75 case Const.I2S: 76 return Type.SHORT; 77 default: // Never reached 78 throw new ClassGenException("Unknown type " + _opcode); 79 } 80 } 81 } 82