110 lines
3.2 KiB
C#
110 lines
3.2 KiB
C#
//
|
|
// CodeVisitor.cs
|
|
//
|
|
// Authors:
|
|
// Alexander Chebaturkin (chebaturkin@gmail.com)
|
|
//
|
|
// Copyright (C) 2012 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 System.IO;
|
|
using Mono.CodeContracts.Static.Analysis;
|
|
using Mono.CodeContracts.Static.ControlFlow;
|
|
using Mono.CodeContracts.Static.DataFlowAnalysis;
|
|
using Mono.CodeContracts.Static.DataStructures;
|
|
using Mono.CodeContracts.Static.Providers;
|
|
|
|
namespace Mono.CodeContracts.Static.AST.Visitors {
|
|
class CodeVisitor<Variable, Expression, ContextData, EdgeData>
|
|
: ILVisitorBase<APC, Expression, Variable, bool, bool>,
|
|
IAnalysis<APC, bool, IILVisitor<APC, Expression, Variable, bool, bool>, EdgeData>
|
|
where ContextData : IMethodContextProvider {
|
|
private ICodeLayer<Expression, Variable, ContextData, EdgeData> codeLayer;
|
|
|
|
public ContextData Context
|
|
{
|
|
get { return this.codeLayer.ILDecoder.ContextProvider; }
|
|
}
|
|
|
|
protected IMetaDataProvider MetaDataProvider
|
|
{
|
|
get { return this.codeLayer.MetaDataProvider; }
|
|
}
|
|
|
|
public void Run (ICodeLayer<Expression, Variable, ContextData, EdgeData> codeLayer)
|
|
{
|
|
this.codeLayer = codeLayer;
|
|
codeLayer.CreateForward (this) (true);
|
|
}
|
|
|
|
#region Overrides of ILVisitorBase<APC,Expression,Variable,bool,bool>
|
|
public override bool DefaultVisit (APC pc, bool data)
|
|
{
|
|
return data;
|
|
}
|
|
#endregion
|
|
|
|
#region Implementation of IAnalysis<APC,bool,IILVisitor<APC,Expression,Variable,bool,bool>,EdgeData>
|
|
public IILVisitor<APC, Expression, Variable, bool, bool> GetVisitor ()
|
|
{
|
|
return this;
|
|
}
|
|
|
|
public virtual bool Join (Pair<APC, APC> edge, bool newstate, bool prevstate, out bool weaker, bool widen)
|
|
{
|
|
weaker = false;
|
|
return true;
|
|
}
|
|
|
|
public bool ImmutableVersion (bool arg)
|
|
{
|
|
return arg;
|
|
}
|
|
|
|
public bool MutableVersion (bool arg)
|
|
{
|
|
return arg;
|
|
}
|
|
|
|
public bool EdgeConversion (APC @from, APC to, bool isJoinPoint, EdgeData data, bool state)
|
|
{
|
|
return state;
|
|
}
|
|
|
|
public bool IsBottom (APC pc, bool state)
|
|
{
|
|
return !state;
|
|
}
|
|
|
|
public Predicate<APC> SaveFixPointInfo (IFixPointInfo<APC, bool> fixPointInfo)
|
|
{
|
|
return null;
|
|
}
|
|
|
|
public void Dump (Pair<bool, TextWriter> pair)
|
|
{
|
|
}
|
|
#endregion
|
|
}
|
|
}
|