def reverse_shift

qasim-bend-kit@0.1.0.2 · proof/JSON_ListProof.bend:19

import Base

19def reverse_shift(-A: Data,
20                  +xs: List<&2, A>,
21                  +acc: List<&2, A>,
22                  +tail: List<&2, A>) -> {List.reverse.go(&2, A, List.reverse.go(&2, A, xs, acc), tail) == List.reverse.go(&2, A, acc, List.append(&2, A, xs, tail)) : List<&2, A>}:
23    match xs:
24        case Nil{}: {==}
25        case h <> t: reverse_shift(A, t, h <> acc, tail)