☰
access
lock_free.Sieve_Cache.access
§(key lock_free.Sieve_Cache.K, val Function lock_free.Sieve_Cache.V) => lock_free.Sieve_Cache.V
§
(key lock_free.Sieve_Cache.K, val Function lock_free.Sieve_Cache.V)
=>
lock_free.Sieve_Cache.V
if not in cache, compute and store in cache