def wire.read.count

emerging-ezhttp@0.21.0.0 · src/wirespec.bend:240

import Base
import emerging-ezhttp@0.21.0.0/src/http.bend as Http

240# what to do after a read of m octets, when their count alone decides it;
241# none when their text is needed (wire.read.next) (SPEC.md HTTP-CLI-6)
242def wire.read.count(+h: Http.Hear, +m: Nat) -> Maybe<&2, Read>:
243  wire.read.count.at(h, m, Nat.is_eq(m, 0n))