def length

bend-collections@1.0.0.0 · src/containers/intrusive_doubly_linked_list.bend:81

import Base
import bend-collections@1.0.0.0/src/containers/internal/intrusive_list.bend as Impl
import bend-collections@1.0.0.0/src/containers/types/intrusive_doubly_linked_list.bend as E

81# Count members in O(n); no cached count is required in the root.
82def length(~S: Type, ~N: Data, ~H: Data, ~get_head: S -> H -> S & Maybe<&2, N>, ~next: S -> N -> S & Maybe<&2, N>, +fuel: Nat, s: S, +h: H) -> S & Result<&2, &1, E.Error, Nat>:
83  Impl.length(~S, ~N, ~H, ~get_head, ~next, fuel, s, h)