On Tuesday, 23 June 2020 at 16:14:20 UTC, Denis wrote:
by presenting an interface that only compiles when both cases
are covered, like fun().match((T t) => t, () => Error()).
A complete solution wrapped in a tidy package -- I like it.
Thanks for sharing.
If you're open to using Dub packages, I'd recommend sumtype [1]
as an alternative to the standard-library Algebraic. It has much
better compatibility with things like function attributes (@safe,
nothrow, etc), mutability qualifiers, CTFE, and betterC, and also
produces substantially more efficient code [2].
[1] https://code.dlang.org/packages/sumtype
[2]
https://pbackus.github.io/blog/beating-stdvisit-without-really-trying.html
