> has the idea of openArray being a concept been considered? It seems to make > sense - an array has a set of properties that concept describes well: > indexable, len, etc
Certainly, but I want to keep `openArray` and turn into borrowed array slices. The borrowing aspect is hard to achieve with a concept. The better way to do it is to simply patch the stdlib to use a concept where it makes sense. Also today's `openArray` does not turn the proc into a generating proc/generic which has its advantages.
