def set_checked_at

bend-collections@1.0.0.0 · src/containers/dynamic_array.bend:346

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

346def set_checked_at(~T: Data, limit: Nat, depth: Nat, +cap: Nat, len: Nat, arr: Array<Maybe<&2, T>>, i: Nat, v: T, ok: Bool) -> DynArray<&2, T> & Result<&2, &2, E.Error, Unit>:
347  match ok:
348    case True{}:
349      (DA{limit, depth, cap, len, Array.set(Maybe<&2, T>, arr, U32.from_nat(i), Some{v})}, Done{Unit{}})
350    case False{}:
351      (DA{limit, depth, cap, len, arr}, Fail{E.IndexOutOfRange{}})