Latest syntax experiment: `given as`
Today in Dotty News: churn on continues on how to put stuff into what I’ve traditionally called “implicit scope”. The current state of play is delegate for
, which has been a bit controversial, so today Martin is trying out given as
. That is, you would declare a typeclass instance this way:
given IntOrd as Ord[Int] { ... }
First-draft rewritten documentation can be found here.
Personal opinion: I think I like it. We’re been fairly settled on using given
at the function-declaration use site for a good while now; this syntax parallels that, which should help learning. And I think it reads a bit more naturally than delegate
.
If you have opinions (especially if you have opinions more informed by experiment than my own), I encourage you to chime in, either on the PR or the Scala Contributors forum…