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make-cache-table
cache-table-lookup!
cache-table-clear!
cache-table?

5.4 Cache Table

This module provides a set of caching hash table functions.

Constructs a cache-table.

(cache-table-lookup! ct id mk)  any/c
  ct : cache-table?
  id : symbol?
  mk : (-> any/c)
Looks up id in ct. If it is not present, then mk is called to construct the value and add it to ct.

(cache-table-clear! ct)  void?
  ct : cache-table?
Clears all entries in ct.

(cache-table? v)  boolean?
  v : any/c
Determines if v is a cache table.