From 620f7926f3f2ad05fdb72050a87e49d0fa2357dd Mon Sep 17 00:00:00 2001
From: Charles Krinke
Date: Wed, 16 Jul 2008 01:00:40 +0000
Subject: Mantis#1753. Thank you kindly, Kinoc for a patch that: Brings Yield
Prolog up to date with sourceforge version 0.9.10 Patched applies to both
DotNet and XEngine.
---
.../Api/Runtime/YieldProlog/PrologException.cs | 118 ++++++++++++++++++---
1 file changed, 103 insertions(+), 15 deletions(-)
(limited to 'OpenSim/Region/ScriptEngine/Shared/Api/Runtime/YieldProlog/PrologException.cs')
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/YieldProlog/PrologException.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/YieldProlog/PrologException.cs
index f29c751..a2fe7ec 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/YieldProlog/PrologException.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/YieldProlog/PrologException.cs
@@ -1,20 +1,20 @@
/*
* Copyright (C) 2007-2008, Jeff Thompson
- *
+ *
* All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
+ *
+ * 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
+ *
+ * * 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
+ * * 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 the copyright holder nor the names of its contributors
- * may be used to endorse or promote products derived from this software
+ * * Neither the name of the copyright holder 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
@@ -43,7 +43,6 @@ namespace OpenSim.Region.ScriptEngine.Shared.YieldProlog
/// Create a PrologException with the given Term. The printable exception message is the full Term.
///
/// the term of the exception
- ///
public PrologException(object Term)
: base(YP.getValue(Term).ToString())
{
@@ -54,18 +53,107 @@ namespace OpenSim.Region.ScriptEngine.Shared.YieldProlog
/// Create a PrologException where the Term is error(ErrorTerm, Message).
/// This uses YP.makeCopy to copy the ErrorTerm and Message so that they are valid after unbinding.
///
- /// the term of the exception
- /// the message, converted to a string, to use as the printable exception message
+ /// the error term of the error
+ /// the message term of the error. If this is a string, it is converted to an
+ /// Atom so it can be used by Prolog code.
+ /// Message, converted to a string, is use as the printable exception message.
///
public PrologException(object ErrorTerm, object Message)
: base(YP.getValue(Message).ToString())
{
+ if (Message is string)
+ Message = Atom.a((string)Message);
_term = YP.makeCopy(new Functor2(Atom.a("error"), ErrorTerm, Message), new Variable.CopyStore());
}
- public object Term
+ public class TypeErrorInfo
+ {
+ public readonly Atom _Type;
+ public readonly object _Culprit;
+ public readonly object _Message;
+
+ public TypeErrorInfo(Atom Type, object Culprit, object Message)
+ {
+ _Type = Type;
+ _Culprit = Culprit;
+ _Message = Message;
+ }
+ }
+ ///
+ /// Return the TypeErrorInfo for this exception, or null if _term does not match
+ /// error(type_error(Type, Culprit), Message).
+ ///
+ ///
+ public TypeErrorInfo getTypeErrorInfo()
+ {
+ if (!(_term is Functor2 && ((Functor2)_term)._name._name == "error"))
+ return null;
+ object errorTerm = ((Functor2)_term)._arg1;
+ if (!(errorTerm is Functor2 && ((Functor2)errorTerm)._name._name == "type_error"))
+ return null;
+ if (!(((Functor2)errorTerm)._arg1 is Atom))
+ return null;
+ return new TypeErrorInfo
+ ((Atom)((Functor2)errorTerm)._arg1, ((Functor2)errorTerm)._arg2, ((Functor2)_term)._arg2);
+ }
+
+ public class ExistenceErrorInfo
+ {
+ public readonly Atom _Type;
+ public readonly object _Culprit;
+ public readonly object _Message;
+
+ public ExistenceErrorInfo(Atom Type, object Culprit, object Message)
+ {
+ _Type = Type;
+ _Culprit = Culprit;
+ _Message = Message;
+ }
+
+ ///
+ /// If _Type is procedure and _Culprit is name/artity, return the name. Otherwise return null.
+ ///
+ ///
+ public object getProcedureName()
+ {
+ if (!(_Type._name == "procedure" &&
+ _Culprit is Functor2 && ((Functor2)_Culprit)._name == Atom.SLASH))
+ return null;
+ return ((Functor2)_Culprit)._arg1;
+ }
+
+ ///
+ /// If _Type is procedure and _Culprit is name/arity and arity is an integer, return the arity.
+ /// Otherwise return -1.
+ ///
+ ///
+ public int getProcedureArity()
+ {
+ if (!(_Type._name == "procedure" &&
+ _Culprit is Functor2 && ((Functor2)_Culprit)._name == Atom.SLASH))
+ return -1;
+ if (!(((Functor2)_Culprit)._arg2 is int))
+ return -1;
+ return (int)((Functor2)_Culprit)._arg2;
+ }
+ }
+ ///
+ /// Return the ExistenceErrorInfo for this exception, or null if _term does not match
+ /// error(existence_error(Type, Culprit), Message). If the returned ExistenceErrorInfo _Culprit is
+ /// procedure, you can use its getProcedureName and getProcedureArity.
+ ///
+ ///
+ public ExistenceErrorInfo getExistenceErrorInfo()
{
- get { return _term; }
+ if (!(_term is Functor2 && ((Functor2)_term)._name._name == "error"))
+ return null;
+ object errorTerm = ((Functor2)_term)._arg1;
+ if (!(errorTerm is Functor2 && ((Functor2)errorTerm)._name._name == "existence_error"))
+ return null;
+ if (!(((Functor2)errorTerm)._arg1 is Atom))
+ return null;
+ return new ExistenceErrorInfo
+ ((Atom)((Functor2)errorTerm)._arg1, ((Functor2)errorTerm)._arg2, ((Functor2)_term)._arg2);
}
}
}
--
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