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//
// ExpressionAnalysisFacade.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.Visitors;
using Mono.CodeContracts.Static.Analysis.HeapAnalysis;
using Mono.CodeContracts.Static.ControlFlow;
using Mono.CodeContracts.Static.DataFlowAnalysis;
using Mono.CodeContracts.Static.DataStructures;
using Mono.CodeContracts.Static.Providers;
namespace Mono.CodeContracts.Static.Analysis.ExpressionAnalysis {
class ExpressionAnalysisFacade<TSymValue, TContext, TEdgeData>
where TSymValue : IEquatable<TSymValue>
where TContext : IValueContextProvider<TSymValue>
where TEdgeData : IImmutableMap<TSymValue, Sequence<TSymValue>> {
public readonly Predicate<APC> IsUnreachable;
public readonly ICodeLayer<TSymValue, TSymValue, TContext, TEdgeData> ValueLayer;
private IFixPointInfo<APC, ExprDomain<TSymValue>> fix_point_info;
public ExpressionAnalysisFacade (ICodeLayer<TSymValue, TSymValue, TContext, TEdgeData> valueLayer,
Predicate<APC> isUnreachable)
{
this.ValueLayer = valueLayer;
this.IsUnreachable = isUnreachable;
}
public bool PreStateLookup (APC label, out ExprDomain<TSymValue> ifFound)
{
return this.fix_point_info.PreStateLookup (label, out ifFound);
}
public bool PostStateLookup (APC label, out ExprDomain<TSymValue> ifFound)
{
return this.fix_point_info.PostStateLookup (label, out ifFound);
}
public void SaveFixPointInfo (IFixPointInfo<APC, ExprDomain<TSymValue>> fixPointInfo)
{
this.fix_point_info = fixPointInfo;
}
public ExprDomain<TSymValue> InitialValue (Func<TSymValue, int> keyConverter)
{
return ExprDomain<TSymValue>.TopValue (keyConverter);
}
public IAnalysis<APC, ExprDomain<TSymValue>, IILVisitor<APC, TSymValue, TSymValue, ExprDomain<TSymValue>, ExprDomain<TSymValue>>, TEdgeData>
CreateExpressionAnalysis ()
{
return new ValueAnalysis<TSymValue, TContext, TEdgeData> (this);
}
public IILDecoder<APC, LabeledSymbol<APC, TSymValue>, TSymValue, IExpressionContextProvider<LabeledSymbol<APC, TSymValue>, TSymValue>, TEdgeData>
GetDecoder (
IILDecoder<APC, TSymValue, TSymValue, IValueContextProvider<TSymValue>, TEdgeData> ilDecoder)
{
return new ExpressionDecoder<TSymValue, TContext, TEdgeData> (ilDecoder, this);
}
}
}
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