Jo Shields a575963da9 Imported Upstream version 3.6.0
Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14
2014-08-13 10:39:27 +01:00

82 lines
2.6 KiB
C#

//
// QueryVisitor.cs
//
// Authors:
// Alexander Chebaturkin (chebaturkin@gmail.com)
//
// Copyright (C) 2011 Alexander Chebaturkin
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using Mono.CodeContracts.Static.AST;
using Mono.CodeContracts.Static.AST.Visitors;
using Mono.CodeContracts.Static.DataStructures;
namespace Mono.CodeContracts.Static.Analysis.ExpressionAnalysis.Decoding {
abstract class QueryVisitor<V, E> : ISymbolicExpressionVisitor<E, E, V, Dummy, bool>
where V : IEquatable<V>
where E : IEquatable<E>
{
#region ISymbolicExpressionVisitor<E,E,V,Dummy,bool> Members
public virtual bool Binary (E pc, BinaryOperator op, V dest, E operand1, E operand2, Dummy data)
{
return false;
}
public virtual bool Isinst (E pc, TypeNode type, V dest, E obj, Dummy data)
{
return false;
}
public virtual bool LoadNull (E pc, V dest, Dummy polarity)
{
return false;
}
public virtual bool LoadConst (E pc, TypeNode type, object constant, V dest, Dummy data)
{
return false;
}
public virtual bool Sizeof (E pc, TypeNode type, V dest, Dummy data)
{
return false;
}
public virtual bool Unary (E pc, UnaryOperator op, bool unsigned, V dest, E source, Dummy data)
{
return false;
}
public virtual bool SymbolicConstant (E pc, V variable, Dummy data)
{
return false;
}
#endregion
protected static bool Decode<Visitor> (E expr, Visitor visitor, FullExpressionDecoder<V,E> decoder)
where Visitor : QueryVisitor<V, E>
{
return decoder.ContextProvider.ExpressionContext.Decode<Dummy, bool, Visitor> (expr, visitor, Dummy.Value);
}
}
}