On Wednesday, 2 December 2020 at 12:59:52 UTC, Paul Backus wrote:
No, this is not a bug, because Nullable!T currently has an
implicit conversion to T via `alias this`. [1] However, this
implicit conversion is deprecated, and will be removed in a
future release. Once that happens, `isTuple!NT` will be
`false`, as you'd expect.
[1]
http://phobos.dpldocs.info/std.typecons.Nullable.1.html#alias-this
I guess it's a moot point because the implicit conversion is
deprecated, but it seems strange to me that isTuple behaves like
canBeUsedAsTuple.
Seems like the reasonable thing to do with a
Nullable!(Tuple!Whatever) would be to check
isTuple!(TemplateArgsOf!MyNullable)
Thanks for the response
