Nordlöw:
Is started digging a bit...The magic happens at line 103 in cast.c.How do I most conveniently figure out which members (functions) a type (e->type) has?I figured I could check for typical InputRange members and issue a hint about using .array if e->type has them.
It's probably better to ask such questions on GitHub (and to open an enhancement request in Bugzilla).
Bye, bearophile
