131 lines
4.3 KiB
C#
131 lines
4.3 KiB
C#
//
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// SubroutineFacade.cs
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//
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// Authors:
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// Alexander Chebaturkin (chebaturkin@gmail.com)
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//
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// Copyright (C) 2011 Alexander Chebaturkin
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using Mono.CodeContracts.Static.AST;
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using Mono.CodeContracts.Static.AST.Visitors;
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using Mono.CodeContracts.Static.ControlFlow.Blocks;
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using Mono.CodeContracts.Static.ControlFlow.Subroutines.Builders;
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using Mono.CodeContracts.Static.DataStructures;
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using Mono.CodeContracts.Static.Providers;
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namespace Mono.CodeContracts.Static.ControlFlow.Subroutines {
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class SubroutineFacade : IMethodCodeConsumer<Dummy, Subroutine> {
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public readonly IContractProvider ContractProvider;
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public readonly IMetaDataProvider MetaDataProvider;
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// private readonly EnsuresFactory ensures_factory;
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private readonly Dictionary<Method, ICFG> method_cache = new Dictionary<Method, ICFG> ();
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private readonly RequiresFactory requires_factory;
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public SubroutineFacade (IMetaDataProvider metaDataProvider,
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IContractProvider contractProvider)
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{
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this.MetaDataProvider = metaDataProvider;
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this.ContractProvider = contractProvider;
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this.requires_factory = new RequiresFactory (this);
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// this.ensures_factory = new EnsuresFactory (this);
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}
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#region IMethodCodeConsumer<Dummy,Subroutine> Members
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Subroutine IMethodCodeConsumer<Dummy, Subroutine>.Accept<Label, Handler> (
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IMethodCodeProvider<Label, Handler> codeProvider,
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Label entry,
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Method method,
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Dummy data)
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{
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var builder = new SubroutineWithHandlersBuilder<Label, Handler> (codeProvider, this, method, entry);
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return new MethodSubroutine<Label, Handler> (this, method, entry, builder);
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}
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#endregion
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public TResult ForwardDecode<TData, TResult, TVisitor> (APC pc, TVisitor visitor, TData data)
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where TVisitor : IILVisitor<APC, Dummy, Dummy, TData, TResult>
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{
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var block = pc.Block as BlockBase;
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if (block != null)
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return block.ForwardDecode<TData, TResult, TVisitor> (pc, visitor, data);
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return visitor.Nop (pc, data);
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}
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public Subroutine GetRequires (Method method)
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{
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method = this.MetaDataProvider.Unspecialized (method);
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return this.requires_factory.Get (method);
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}
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public Subroutine GetEnsures (Method method)
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{
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return null;
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//todo: implement handling this in MethodSubroutine and uncomment lines below
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// method = this.MetaDataProvider.Unspecialized (method);
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// return this.ensures_factory.Get (method);
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}
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public Subroutine GetInvariant (TypeNode type)
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{
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//todo: implement this
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return null;
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}
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public ICFG GetControlFlowGraph (Method method)
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{
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if (this.method_cache.ContainsKey (method))
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return this.method_cache [method];
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if (!this.MetaDataProvider.HasBody (method))
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throw new InvalidOperationException ("Method has no body");
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return new ControlFlowGraph (this.MetaDataProvider.AccessMethodBody (method, this, Dummy.Value), this);
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}
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public void AddReads (Method method, Field field)
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{
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throw new NotImplementedException ();
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}
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public IEnumerable<Method> GetAffectedGetters (Field field)
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{
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//todo: implement this
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return new Method[0];
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}
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public IEnumerable<Field> GetModifies (Method method)
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{
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//todo: implement this
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return Enumerable.Empty<Field> ();
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}
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}
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}
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