Last tweaked by Mike Spreitzer on December 7, 1987 6:09:28 pm PST

HashTable: TYPE ~ REF HashTablePrivate;

HashTablePrivate: TYPE;

Decider: TYPE ~ PROC [MaybeValue] RETURNS [MaybeValue];

Create: PROC [space: Space] RETURNS [HashTable];

Map: PROC [ht: HashTable, arg: Value] RETURNS [MaybeValue];

Store: PROC [ht: HashTable, arg, res: Value] RETURNS [same: HashTable];

Delete: PROC [ht: HashTable, arg: Value] RETURNS [had: BOOL];

Update: PROC [ht: HashTable, arg: Value, Decide: Decider] RETURNS [same: HashTable];

Size: PROC [ht: HashTable] RETURNS [INT];

Scan: PROC [ht: HashTable, Test: Tester] RETURNS [same: HashTable, mp: MaybePair];

}.