def value_of

bend-collections@1.0.0.0 · src/containers/internal/dlist_storage.bend:213

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

213def value_of(~T: Data, m: Maybe<&2, T>) -> Result<&2, &2, E.Error, T>:
214  match m:
215    case None{}:
216      Fail{E.StaleHandle{}}
217    case Some{v}:
218      Done{v}