On Tuesday, 28 November 2017 at 19:34:27 UTC, A Guy With an Opinion wrote: > I take it adding those inverse attributes is no trivial thing? It would require a DIP: https://github.com/dlang/DIPs This DIP is related (https://github.com/dlang/DIPs/blob/master/DIPs/DIP1012.md) but I don't know what's happening with it. Mike