law hmap_get_del_same

bend-kit-collections@0.1.4.1 · LAWS.bend:597

import Base
import bend-kit-collections@0.1.4.1/hmap.bend as M

597law hmap_get_del_same:
598  for ~K: Data
599  for ~V: Data
600  for ~hash: K -> U32
601  for ~eq: K -> K -> Bool
602  for ~sound: @x: K -> @y: K -> {eq(x, y) == True{} : Bool} -> {x == y : K}
603  for m: M.HMap<K, V>
604  for wf: {hmap_wf(~K, ~V, ~hash, ~eq, m) == True{} : Bool}
605  for +k: K
606  {M.HMap.get(~K, ~V, ~hash, ~eq, M.HMap.del(~K, ~V, ~hash, ~eq, m, k), k)
607   == None{} : Maybe<&2, V>}