tree 0271af1e7eb91fd176a73f9e5c41b840139d41b5
parent a1882dc1d0eeb8eb15614b28d3c11a3697bcd185
author rsc <devnull@localhost> 1087499911 +0000
committer rsc <devnull@localhost> 1087499911 +0000
golang-hg e45946736415785fd6c52fc395917eca05d908b0

add cache function