72 lines
3.0 KiB
C#
72 lines
3.0 KiB
C#
/*
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* Copyright (C) 2007-2008, Jeff Thompson
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the copyright holder nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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using System;
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namespace OpenSim.Region.ScriptEngine.DotNetEngine.Compiler.YieldProlog
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{
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/// <summary>
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/// A PrologException is used as the exception thrown by YP.throw(Term).
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/// </summary>
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public class PrologException : Exception
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{
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public readonly object _term;
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/// <summary>
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/// Create a PrologException with the given Term. The printable exception message is the full Term.
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/// </summary>
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/// <param name="Term">the term of the exception</param>
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/// </param>
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public PrologException(object Term)
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: base(YP.getValue(Term).ToString())
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{
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_term = YP.makeCopy(Term, new Variable.CopyStore());
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}
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/// <summary>
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/// Create a PrologException where the Term is error(ErrorTerm, Message).
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/// This uses YP.makeCopy to copy the ErrorTerm and Message so that they are valid after unbinding.
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/// </summary>
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/// <param name="ErrorTerm">the term of the exception</param>
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/// <param name="Messsage">the message, converted to a string, to use as the printable exception message
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/// </param>
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public PrologException(object ErrorTerm, object Message)
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: base(YP.getValue(Message).ToString())
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{
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_term = YP.makeCopy(new Functor2(Atom.a("error"), ErrorTerm, Message), new Variable.CopyStore());
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}
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public object Term
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{
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get { return _term; }
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}
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}
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}
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