WREN.SCRIPT

WREN.SCRIPT LOAD script
WREN.SCRIPT EXISTS sha1 [sha1 ...]
WREN.SCRIPT FLUSH [ASYNC | SYNC]

Manage the Wren script cache used by WREN.EVAL and WREN.EVALSHA. Behavior mirrors SCRIPT, on a cache that is independent of the PUC-Lua (SCRIPT) and Luau (LUAU.SCRIPT) caches.

• WREN.SCRIPT LOAD script — compile and cache the script without running it, returning its 40-character SHA1 digest. Because a Wren module has side effects at load time, the body is compiled inside an uncalled function, so LOAD validates syntax without executing any of your code. Invalid scripts are rejected.
• WREN.SCRIPT EXISTS sha1 … — array of 1/0, one per digest.
• WREN.SCRIPT FLUSH — clear the Wren cache, reply +OK.

Example

> WREN.SCRIPT LOAD "return [1, 2, 3].map{|n| n * 2}.toList"
"a1b2c3..."

> WREN.SCRIPT EXISTS a1b2c3...
1) (integer) 1

> WREN.SCRIPT FLUSH
OK

See also

• WREN.EVAL, WREN.EVALSHA.
• SCRIPT — the PUC-Lua equivalent.