137 lines
4.6 KiB
C#
137 lines
4.6 KiB
C#
//
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// MethodSubroutine.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 Mono.CodeContracts.Static.AST;
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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.Providers;
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namespace Mono.CodeContracts.Static.ControlFlow.Subroutines {
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class MethodSubroutine<Label, Handler> : SubroutineWithHandlers<Label, Handler>, IMethodInfo {
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private readonly Method method;
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private HashSet<BlockWithLabels<Label>> blocks_ending_in_return_point;
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public MethodSubroutine (SubroutineFacade subroutineFacade, Method method)
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: base (subroutineFacade)
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{
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this.method = method;
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}
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public MethodSubroutine (SubroutineFacade SubroutineFacade,
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Method method, Label startLabel,
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SubroutineWithHandlersBuilder<Label, Handler> builder) : base (SubroutineFacade, startLabel, builder)
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{
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this.method = method;
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IMetaDataProvider metaDataProvider = this.SubroutineFacade.MetaDataProvider;
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builder.BuildBlocks (startLabel, this);
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BlockWithLabels<Label> targetBlock = GetTargetBlock (startLabel);
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Commit ();
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TypeNode type = metaDataProvider.DeclaringType (method);
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Subroutine invariant = this.SubroutineFacade.GetInvariant (type);
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if (invariant != null && !metaDataProvider.IsConstructor (method) && !metaDataProvider.IsStatic (method)) {
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AddEdgeSubroutine (Entry, targetBlock, invariant, EdgeTag.Entry);
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Subroutine requires = this.SubroutineFacade.GetRequires (method);
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if (requires != null)
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AddEdgeSubroutine (Entry, targetBlock, requires, EdgeTag.Entry);
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} else
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AddEdgeSubroutine (Entry, targetBlock, this.SubroutineFacade.GetRequires (method), EdgeTag.Entry);
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if (this.blocks_ending_in_return_point == null)
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return;
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Subroutine ensures = this.SubroutineFacade.GetEnsures (method);
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bool putInvariantAfterExit = !metaDataProvider.IsStatic (method)
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&& !metaDataProvider.IsFinalizer (method) && !metaDataProvider.IsDispose (method);
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foreach (var block in this.blocks_ending_in_return_point) {
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if (putInvariantAfterExit)
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AddEdgeSubroutine (block, Exit, invariant, EdgeTag.Exit);
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AddEdgeSubroutine (block, Exit, ensures, EdgeTag.Exit);
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}
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if (ensures != null) {
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throw new NotImplementedException();
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}
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this.blocks_ending_in_return_point = null;
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}
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#region Overrides of Subroutine
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public override void Initialize ()
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{
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}
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#endregion
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#region Overrides of SubroutineBase<Label>
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public override void AddReturnBlock (BlockWithLabels<Label> block)
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{
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if (this.blocks_ending_in_return_point == null)
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this.blocks_ending_in_return_point = new HashSet<BlockWithLabels<Label>> ();
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this.blocks_ending_in_return_point.Add (block);
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base.AddReturnBlock (block);
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}
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#endregion
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#region Implementation of IMethodInfo<Method>
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public Method Method
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{
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get { return this.method; }
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}
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#endregion
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public override SubroutineKind Kind
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{
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get { return SubroutineKind.Method; }
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}
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public override bool HasReturnValue
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{
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get { return !this.SubroutineFacade.MetaDataProvider.IsVoidMethod (this.method); }
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}
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public override bool IsMethod
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{
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get { return true; }
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}
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public override bool IsConstructor
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{
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get { return this.SubroutineFacade.MetaDataProvider.IsConstructor (this.method); }
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}
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public override string Name
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{
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get { return this.SubroutineFacade.MetaDataProvider.FullName (this.method); }
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}
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}
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}
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