def reserve_checked_at

bend-collections@1.0.0.0 · src/containers/dynamic_array.bend:412

import Base
import bend-collections@1.0.0.0/src/math/pow2.bend as P2
import bend-collections@1.0.0.0/src/containers/types/dynamic_array.bend as E

412def reserve_checked_at(~T: Data, +limit: Nat, +depth: Nat, +cap: Nat, len: Nat, arr: Array<Maybe<&2, T>>, +n: Nat, fits: Bool) -> DynArray<&2, T> & Result<&2, &2, E.Error, Unit>:
413  match fits:
414    case True{}:
415      (DA{limit, depth, cap, len, arr}, Done{Unit{}})
416    case False{}:
417      reserve_room_at(~T, limit, depth, cap, len, arr, n, Nat.is_le(n, P2.pow2t(limit)))