On Tuesday, 26 February 2019 at 12:52:11 UTC, JN wrote:
On Monday, 25 February 2019 at 20:31:43 UTC, Paul Backus wrote:
SumType is a generic sum type for modern D. It is meant as an
alternative to
`std.variant.Algebraic`.
Is it a better alternative? Seems like it from the description.
If it's objectively better on all fronts, perhaps it should be
considered for inclusion into Phobos, as a replacement for the
existing Algebraic?
It's not a perfect superset of Algebraic and Variant in Phobos,
so it's not a strictly better alternative. The feature that is
missing is SumType can't hold arbitrary types, only the types
specified in its template parameters. However, for the case where
the set of possible types is limited, it's strictly better.
--
Simen
