101 lines
3.9 KiB
C#
101 lines
3.9 KiB
C#
//
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// SimpleSubroutineBuilder.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.Collections.Generic;
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using Mono.CodeContracts.Static.ControlFlow.Blocks;
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using Mono.CodeContracts.Static.Providers;
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namespace Mono.CodeContracts.Static.ControlFlow.Subroutines.Builders {
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class SimpleSubroutineBuilder<TLabel> : SubroutineBuilder<TLabel> {
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private readonly HashSet<TLabel> begin_old_start = new HashSet<TLabel> ();
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private readonly HashSet<TLabel> end_old_start = new HashSet<TLabel> ();
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private BlockWithLabels<TLabel> block_prior_to_old;
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private OldValueSubroutine<TLabel> current_old_subroutine;
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private SubroutineBase<TLabel> current_subroutine;
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public SimpleSubroutineBuilder (ICodeProvider<TLabel> codeProvider,
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SubroutineFacade subroutineFacade,
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TLabel entry)
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: base (codeProvider, subroutineFacade, entry)
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{
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Initialize (entry);
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}
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public override SubroutineBase<TLabel> CurrentSubroutine
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{
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get
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{
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if (this.current_old_subroutine != null)
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return this.current_old_subroutine;
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return this.current_subroutine;
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}
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}
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public BlockWithLabels<TLabel> BuildBlocks (TLabel entry, SubroutineBase<TLabel> subroutine)
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{
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this.current_subroutine = subroutine;
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return base.BuildBlocks (entry);
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}
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public override BlockWithLabels<TLabel> RecordInformationForNewBlock (TLabel currentLabel, BlockWithLabels<TLabel> previousBlock)
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{
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TLabel label;
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if (previousBlock != null && previousBlock.TryGetLastLabel (out label) && this.end_old_start.Contains (label)) {
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OldValueSubroutine<TLabel> oldValueSubroutine = this.current_old_subroutine;
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oldValueSubroutine.Commit (previousBlock);
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this.current_old_subroutine = null;
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BlockWithLabels<TLabel> result = base.RecordInformationForNewBlock (currentLabel, this.block_prior_to_old);
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CurrentSubroutine.AddEdgeSubroutine (this.block_prior_to_old, result, oldValueSubroutine, EdgeTag.Old);
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return result;
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}
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if (!this.begin_old_start.Contains (currentLabel))
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return base.RecordInformationForNewBlock (currentLabel, previousBlock);
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this.current_old_subroutine = new OldValueSubroutine<TLabel> (this.SubroutineFacade,
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((MethodContractSubroutine<TLabel>) this.current_subroutine).Method,
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this, currentLabel);
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this.block_prior_to_old = previousBlock;
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BlockWithLabels<TLabel> newBlock = base.RecordInformationForNewBlock (currentLabel, null);
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this.current_old_subroutine.RegisterBeginBlock (newBlock);
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return newBlock;
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}
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public override void BeginOldHook (TLabel label)
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{
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this.begin_old_start.Add (label);
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}
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public override void EndOldHook (TLabel label)
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{
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this.end_old_start.Add (label);
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}
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}
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}
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