def get_checked_at

bend-collections@1.0.0.0 · src/containers/dynamic_array.bend:335

import Base
import bend-collections@1.0.0.0/src/containers/types/dynamic_array.bend as E

335def get_checked_at(~T: Data, limit: Nat, depth: Nat, +cap: Nat, len: Nat, arr: Array<Maybe<&2, T>>, i: Nat, ok: Bool) -> DynArray<&2, T> & Result<&2, &2, E.Error, T>:
336  match ok:
337    case True{}:
338      get_found_at(~T, limit, depth, cap, len, Array.get(Maybe<&2, T>, arr, U32.from_nat(i)))
339    case False{}:
340      (DA{limit, depth, cap, len, arr}, Fail{E.IndexOutOfRange{}})