/*
* Copyright (c) 2007 BUSINESS OBJECTS SOFTWARE LIMITED
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Business Objects nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* NError.java
* Created: August 2, 2005
* By: Greg McClement
*/
package org.openquark.cal.internal.machine.g.functions;
import org.openquark.cal.compiler.QualifiedName;
import org.openquark.cal.internal.machine.g.Executor;
import org.openquark.cal.internal.machine.g.NPrimitiveFunc;
import org.openquark.cal.internal.machine.g.Node;
import org.openquark.cal.module.Cal.Core.CAL_Prelude;
import org.openquark.cal.runtime.CALExecutorException;
import org.openquark.cal.runtime.ErrorInfo;
/**
* Implementation of Prelude.error
*/
public class NError extends NPrimitiveFunc {
public static final QualifiedName name = CAL_Prelude.Functions.error;
public static final NError instance = new NError ();
private NError () {/* Constructor made private to control creation. */ }
@Override
protected int getArity () {
return 2;
}
@Override
protected QualifiedName getName () {
return name;
}
/**
* Throw an error with the given source position and error message.
*/
@Override
public Node doEvaluation (Node[] arguments, Executor executor)
throws CALExecutorException {
// Evaluate the two arguments.
ErrorInfo errorInfo = (ErrorInfo) executor.internalEvaluate(arguments[0]).getValue();
String errorMessage = (String) executor.internalEvaluate(arguments[1]).getValue();
throw new CALExecutorException.ExternalException.ErrorFunctionException(errorInfo, errorMessage);
}
}