public object InvokeOriginalFunction(CancellationToken cancellationToken)
{
// This method fixes up the arguments before the invocation so that
// CancellationToken is set to the correct one and CallOptions are reset.
// In addition, it processes CallOptions.Capture, though note that
// it's also processed in InterceptedFunction.TryGetExisting.
var method = Method;
var arguments = Arguments;
var ctIndex = method.CancellationTokenArgumentIndex;
Invocation.SetCurrentInterceptorIndex(NextInterceptorIndex);
if (ctIndex >= 0)
{
var currentCancellationToken = (CancellationToken)arguments[ctIndex];
// Comparison w/ the existing one to avoid boxing when possible
if (currentCancellationToken != cancellationToken)
{
// ReSharper disable once HeapView.BoxingAllocation
arguments[ctIndex] = cancellationToken;
Invocation.Proceed();
arguments[ctIndex] = BoxedDefaultCancellationToken;
}
else
{
Invocation.Proceed();
}
}
else
{
Invocation.Proceed();
}
return(Invocation.ReturnValue);
}
