1/* 2 * Copyright (c) 1999, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25/* 26 * COMPONENT_NAME: idl.parser 27 * 28 * ORIGINS: 27 29 * 30 * Licensed Materials - Property of IBM 31 * 5639-D57 (C) COPYRIGHT International Business Machines Corp. 1997, 1999 32 * RMI-IIOP v1.0 33 * 34 */ 35 36package com.sun.tools.corba.se.idl.constExpr; 37 38// NOTES: 39 40import com.sun.tools.corba.se.idl.Util; 41import java.math.BigInteger; 42 43public class Negative extends UnaryExpr 44{ 45 protected Negative (Expression operand) 46 { 47 super ("-", operand); 48 } // ctor 49 50 public Object evaluate () throws EvaluationException 51 { 52 try 53 { 54 Number op = (Number)operand ().evaluate (); 55 56 if (op instanceof Float || op instanceof Double) 57 value (new Double (-op.doubleValue ())); 58 else 59 { 60 // Multiply by -1 61 //daz value (new Long (-op.longValue ())); 62 BigInteger tmpOp = (BigInteger)op; 63 value (tmpOp.multiply (BigInteger.valueOf (-1))); 64 } 65 } 66 catch (ClassCastException e) 67 { 68 String[] parameters = {Util.getMessage ("EvaluationException.neg"), operand ().value ().getClass ().getName ()}; 69 throw new EvaluationException (Util.getMessage ("EvaluationException.2", parameters)); 70 } 71 return value (); 72 } // evaluate 73} // class Negative 74