com.sun.tools.corba.ee.idl.constExpr.Divide Maven / Gradle / Ivy
/*
* Copyright (c) 1997, 2020 Oracle and/or its affiliates.
* Copyright (c) 1997-1999 IBM Corp. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0, or the Eclipse Distribution License
* v. 1.0 which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the Eclipse
* Public License v. 2.0 are satisfied: GNU General Public License v2.0
* w/Classpath exception which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause OR GPL-2.0 WITH
* Classpath-exception-2.0
*/
package com.sun.tools.corba.ee.idl.constExpr;
// NOTES:
// -D52042 Added protypical code for computing mixed-operand binary
// expressions, which promotes result to Double only when the target type
// is floating-point. Code violates spec, but may be usable at some future
// time.
import com.sun.tools.corba.ee.idl.Util;
import java.math.BigInteger;
/**
*
**/
public class Divide extends BinaryExpr
{
/**
* Constructor: set operation and operands.
**/
protected Divide (com.sun.tools.corba.ee.idl.constExpr.Expression leftOperand, com.sun.tools.corba.ee.idl.constExpr.Expression rightOperand)
{
super ("/", leftOperand, rightOperand);
} // ctor
/**
*
**/
public Object evaluate () throws com.sun.tools.corba.ee.idl.constExpr.EvaluationException
{
try
{
Number l = (Number)left ().evaluate ();
Number r = (Number)right ().evaluate ();
boolean lIsNonInteger = l instanceof Float || l instanceof Double;
boolean rIsNonInteger = r instanceof Float || r instanceof Double;
if (lIsNonInteger && rIsNonInteger)
value (new Double (l.doubleValue () / r.doubleValue ()));
else if (lIsNonInteger || rIsNonInteger)
{
String[] parameters = {Util.getMessage ("EvaluationException.divide"),
left ().value ().getClass ().getName (),
right ().value ().getClass ().getName ()};
throw new com.sun.tools.corba.ee.idl.constExpr.EvaluationException(Util.getMessage ("EvaluationException.1", parameters));
}
else
{
BigInteger tmpL = (BigInteger)l, tmpR = (BigInteger)r;
value (tmpL.divide (tmpR));
}
// Allow evaluation over mixed operands. Supplant code above.
/*
Number l = (Number)left ().evaluate ();
Number r = (Number)right ().evaluate ();
boolean lIsNonInteger = l instanceof Float || l instanceof Double;
boolean rIsNonInteger = r instanceof Float || r instanceof Double;
// Floating-point operands.
if (lIsNonInteger && rIsNonInteger)
{
value (new Double (l.doubleValue () / r.doubleValue ()));
}
// Integral operands.
else if (!(lIsNonInteger || rIsNonInteger))
{
BigInteger tmpL = (BigInteger)l, tmpR = (BigInteger)r;
value (tmpL.divide (tmpR));
}
// Mixed operands: one operand is floating-point, the other is integral.
else
{
// Legal over floating-point types only.
if (type ().equals ("float") ||
type ().equals ("double"))
{
value (new Double (l.doubleValue () / r.doubleValue ()));
}
else
{
String[] parameters = {Util.getMessage ("EvaluationException.divide"),
left ().value ().getClass ().getName (),
right ().value ().getClass ().getName ()};
throw new EvaluationException (Util.getMessage ("EvaluationException.1", parameters));
}
}
*/
}
catch (ClassCastException e)
{
String[] parameters = {Util.getMessage ("EvaluationException.divide"), left ().value ().getClass ().getName (), right ().value ().getClass ().getName ()};
throw new com.sun.tools.corba.ee.idl.constExpr.EvaluationException(Util.getMessage ("EvaluationException.1", parameters));
}
return value ();
} // evaluate
} // class Divide