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//
// RequiresSubroutine.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;
using Mono.CodeContracts.Static.ControlFlow.Subroutines.Builders;
using Mono.CodeContracts.Static.DataStructures;
namespace Mono.CodeContracts.Static.ControlFlow.Subroutines {
sealed class RequiresSubroutine<TLabel> : MethodContractSubroutine<TLabel>, IEquatable<RequiresSubroutine<TLabel>>
{
public override SubroutineKind Kind { get { return SubroutineKind.Requires; } }
public override bool IsContract { get { return true; } }
public override bool IsRequires { get { return true; } }
public RequiresSubroutine(SubroutineFacade subroutineFacade,
Method method,
IImmutableSet<Subroutine> inherited)
: base(subroutineFacade, method)
{
AddSuccessor(Entry, EdgeTag.Entry, Exit);
AddBaseRequires(Exit, inherited);
Commit();
}
public RequiresSubroutine(SubroutineFacade subroutineFacade,
Method method,
SimpleSubroutineBuilder<TLabel> builder,
TLabel entryLabel,
IImmutableSet<Subroutine> inheritedRequires)
: base(subroutineFacade, method, builder, entryLabel)
{
AddBaseRequires(this.GetTargetBlock(entryLabel), inheritedRequires);
}
public override void Initialize()
{
if (this.Builder == null)
return;
this.Builder.BuildBlocks(this.StartLabel, this);
this.Commit();
this.Builder = null;
}
private void AddBaseRequires(CFGBlock targetOfEntry, IImmutableSet<Subroutine> inherited)
{
foreach (var subroutine in inherited.Elements)
this.AddEdgeSubroutine(this.Entry, targetOfEntry, subroutine, EdgeTag.Inherited);
}
public bool Equals(RequiresSubroutine<TLabel> that)
{
return this.Id == that.Id;
}
}
}