Optional param in bars.janet
:error (error (parser/error p)))
# Make ast from forms
- (def ast ~(fn [params &] (default params @{}) (,buffer ,;forms)))
+ (def ast ~(fn [&opt params] (default params @{}) (,buffer ,;forms)))
(def ctor (compile ast *env* source))
(if-not (function? ctor)
