public override LispList <Pair <EdgeTag, Subroutine> > GetOrdinaryEdgeSubroutines(CFGBlock from, CFGBlock to, LispList <Edge <CFGBlock, EdgeTag> > context)
{
IMetaDataProvider metadataDecoder = this.SubroutineFacade.MetaDataProvider;
var apc = new APC(to, 0, context);
DecoratorHelper.Push(this);
try {
LispList <Pair <EdgeTag, Subroutine> > list = DecoratorHelper.Dispatch <IEdgeSubroutineAdaptor> (this).GetOrdinaryEdgeSubroutinesInternal(from, to, context);
if (apc.InsideContract)
{
if (context != null && !list.IsEmpty())
{
Method calledMethod;
bool isNewObj;
bool isVirtual;
if (@from.IsMethodCallBlock(out calledMethod, out isNewObj, out isVirtual) && isVirtual && ((IStackInfo)this).IsCallOnThis(new APC(@from, 0, null)))
{
TypeNode type = metadataDecoder.DeclaringType(calledMethod);
do
{
if (context.Head.Tag.Is(EdgeTag.InheritedMask) || context.Head.Tag.Is(EdgeTag.ExtraMask) || context.Head.Tag.Is(EdgeTag.OldMask))
{
context = context.Tail;
}
else
{
Method calledMethod2;
bool isNewObj2;
bool isVirtual2;
if (context.Head.Tag.Is(EdgeTag.AfterMask) && context.Head.From.IsMethodCallBlock(out calledMethod2, out isNewObj2, out isVirtual2))
{
TypeNode sub = metadataDecoder.DeclaringType(calledMethod2);
if (metadataDecoder.DerivesFrom(sub, type))
{
type = sub;
}
if (!DecoratorHelper.Dispatch <IStackInfo> (this).IsCallOnThis(new APC(context.Head.From, 0, null)))
{
break;
}
}
else if (context.Head.Tag.Is(EdgeTag.BeforeMask) && context.Head.To.IsMethodCallBlock(out calledMethod2, out isNewObj2, out isVirtual2))
{
TypeNode sub = metadataDecoder.DeclaringType(calledMethod2);
if (metadataDecoder.DerivesFrom(sub, type))
{
type = sub;
}
if (!DecoratorHelper.Dispatch <IStackInfo> (this).IsCallOnThis(new APC(context.Head.To, 0, null)))
{
break;
}
}
else if (context.Head.Tag == EdgeTag.Exit)
{
var methodInfo = context.Head.From.Subroutine as IMethodInfo;
if (methodInfo != null)
{
TypeNode sub = metadataDecoder.DeclaringType(methodInfo.Method);
if (metadataDecoder.DerivesFrom(sub, type))
{
type = sub;
}
}
break;
}
else
{
if (context.Head.Tag != EdgeTag.Entry)
{
return(list);
}
var methodInfo = context.Head.From.Subroutine as IMethodInfo;
if (methodInfo != null)
{
TypeNode sub = metadataDecoder.DeclaringType(methodInfo.Method);
if (metadataDecoder.DerivesFrom(sub, type))
{
type = sub;
}
}
break;
}
context = context.Tail;
}
} while (!context.IsEmpty());
Method implementingMethod;
if (!metadataDecoder.Equal(type, metadataDecoder.DeclaringType(calledMethod)) &&
metadataDecoder.TryGetImplementingMethod(type, calledMethod, out implementingMethod))
{
list = SpecializedEnsures(list, this.SubroutineFacade.GetEnsures(calledMethod), this.SubroutineFacade.GetEnsures(implementingMethod));
}
}
}
}
else
{
Method calledMethod;
bool isNewObj;
bool isVirtual;
if (@from.IsMethodCallBlock(out calledMethod, out isNewObj, out isVirtual))
{
if (DecoratorHelper.Dispatch <IStackInfo> (this).IsCallOnThis(new APC(@from, 0, null)))
{
var methodInfo = @from.Subroutine as IMethodInfo;
if (methodInfo != null)
{
TypeNode bestType = metadataDecoder.DeclaringType(methodInfo.Method);
Method implementingMethod;
if (isVirtual && metadataDecoder.TryGetImplementingMethod(bestType, calledMethod, out implementingMethod))
{
list = SpecializedEnsures(list, this.SubroutineFacade.GetEnsures(calledMethod), this.SubroutineFacade.GetEnsures(implementingMethod));
}
list = InsertInvariant(@from, list, calledMethod, ref bestType, context);
}
}
}
}
return(list);
} finally {
DecoratorHelper.Pop();
}
}