// 
// IAnalysis.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 System.IO;

using Mono.CodeContracts.Static.AST.Visitors;
using Mono.CodeContracts.Static.ControlFlow;
using Mono.CodeContracts.Static.DataStructures;
using Mono.CodeContracts.Static.Proving;

namespace Mono.CodeContracts.Static.DataFlowAnalysis {
	interface IAnalysis<Label, AbstractState, Visitor, EdgeData> {
		Visitor GetVisitor ();
		AbstractState Join (Pair<Label, Label> edge, AbstractState newstate, AbstractState prevstate, out bool weaker, bool widen);
		AbstractState ImmutableVersion (AbstractState arg);
		AbstractState MutableVersion (AbstractState arg);
		AbstractState EdgeConversion (APC from, APC to, bool isJoinPoint, EdgeData data, AbstractState state);
		bool IsBottom (Label pc, AbstractState state);
		Predicate<Label> SaveFixPointInfo (IFixPointInfo<Label, AbstractState> fixPointInfo);
		void Dump (Pair<AbstractState, TextWriter> pair);
	}

        interface IAbstractAnalysis<TDomain, TVar> : IAnalysis<APC, TDomain, IILVisitor<APC, TVar, TVar, TDomain, TDomain>, IImmutableMap<TVar, Sequence<TVar>>> {
                TDomain TopValue ();
                TDomain BottomValue ();
                IFactQuery<BoxedExpression, TVar> FactQuery (IFixPointInfo<APC, TDomain> fixpoint);
        }
}