law hmap_get_put_other_key

bend-kit-collections@0.1.4.1 · LAWS.bend:582

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

582law hmap_get_put_other_key:
583  for ~K: Data
584  for ~V: Data
585  for ~hash: K -> U32
586  for ~eq: K -> K -> Bool
587  for ~sound: @x: K -> @y: K -> {eq(x, y) == True{} : Bool} -> {x == y : K}
588  for m: M.HMap<K, V>
589  for wf: {hmap_wf(~K, ~V, ~hash, ~eq, m) == True{} : Bool}
590  for +k2: K
591  for +k: K
592  for ne: {k2 != k : K}
593  for +v: V
594  {M.HMap.get(~K, ~V, ~hash, ~eq, M.HMap.put(~K, ~V, ~hash, ~eq, m, k2, v), k)
595   == M.HMap.get(~K, ~V, ~hash, ~eq, m, k) : Maybe<&2, V>}