| /* |
| * reserved comment block |
| * DO NOT REMOVE OR ALTER! |
| */ |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.sun.org.apache.bcel.internal.generic; |
| |
| import com.sun.org.apache.bcel.internal.Const; |
| |
| /** |
| * Super class for the family of arithmetic instructions. |
| * |
| * @version $Id: ArithmeticInstruction.java 1747278 2016-06-07 17:28:43Z britter $ |
| */ |
| public abstract class ArithmeticInstruction extends Instruction implements TypedInstruction, |
| StackProducer, StackConsumer { |
| |
| /** |
| * Empty constructor needed for the Class.newInstance() statement in |
| * Instruction.readInstruction(). Not to be used otherwise. |
| */ |
| ArithmeticInstruction() { |
| } |
| |
| |
| /** |
| * @param opcode of instruction |
| */ |
| protected ArithmeticInstruction(final short opcode) { |
| super(opcode, (short) 1); |
| } |
| |
| |
| /** @return type associated with the instruction |
| */ |
| @Override |
| public Type getType( final ConstantPoolGen cp ) { |
| final short _opcode = super.getOpcode(); |
| switch (_opcode) { |
| case Const.DADD: |
| case Const.DDIV: |
| case Const.DMUL: |
| case Const.DNEG: |
| case Const.DREM: |
| case Const.DSUB: |
| return Type.DOUBLE; |
| case Const.FADD: |
| case Const.FDIV: |
| case Const.FMUL: |
| case Const.FNEG: |
| case Const.FREM: |
| case Const.FSUB: |
| return Type.FLOAT; |
| case Const.IADD: |
| case Const.IAND: |
| case Const.IDIV: |
| case Const.IMUL: |
| case Const.INEG: |
| case Const.IOR: |
| case Const.IREM: |
| case Const.ISHL: |
| case Const.ISHR: |
| case Const.ISUB: |
| case Const.IUSHR: |
| case Const.IXOR: |
| return Type.INT; |
| case Const.LADD: |
| case Const.LAND: |
| case Const.LDIV: |
| case Const.LMUL: |
| case Const.LNEG: |
| case Const.LOR: |
| case Const.LREM: |
| case Const.LSHL: |
| case Const.LSHR: |
| case Const.LSUB: |
| case Const.LUSHR: |
| case Const.LXOR: |
| return Type.LONG; |
| default: // Never reached |
| throw new ClassGenException("Unknown type " + _opcode); |
| } |
| } |
| } |