// (Try)SetFromTask
public static void SetFromTask <T>(this TaskSource <T> target, Task <T> source, CancellationToken candidateToken)
{
if (source.IsCanceled)
{
target.SetCanceled(candidateToken.IsCancellationRequested ? candidateToken : CancellationToken.None);
}
else if (source.Exception != null)
{
target.SetException(source.Exception);
}
else
{
target.SetResult(source.Result);
}
}
// (Try)SetFromResult
public static void SetFromResult <T>(this TaskSource <T> target, Result <T> source, CancellationToken candidateToken)
{
if (source.IsValue(out var v, out var e))
{
target.SetResult(v);
}
else if (e is OperationCanceledException && candidateToken.IsCancellationRequested)
{
target.SetCanceled(candidateToken);
}
else
{
target.SetException(e);
}
}
