diff options
Diffstat (limited to 'source/lux/host/jvm.lux')
| -rw-r--r-- | source/lux/host/jvm.lux | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/source/lux/host/jvm.lux b/source/lux/host/jvm.lux index 7af043969..2c90b1ba3 100644 --- a/source/lux/host/jvm.lux +++ b/source/lux/host/jvm.lux @@ -11,7 +11,8 @@ (functor #as F) (monad #as M #refer (#only do))) (data (list #as l #refer #all #open ("" List/Functor)) - (text #as text)) + (text #as text) + (number (int #open ("i" Int/Eq)))) (meta lux macro syntax))) @@ -236,3 +237,16 @@ (emit (list (` (_jvm_invokestatic (~ (text$ class)) (~ (text$ m-name)) [(~@ (map text$ m-classes))] [(~@ m-args)])))))) + +(defsyntax #export (->maybe expr) + (do Lux/Monad + [g!val (gensym "")] + (emit (list (` (;let [(~ g!val) (~ expr)] + (;if (null? (~ g!val)) + #;None + (#;Some (~ g!val))))))))) + +(defsyntax #export (try$ expr) + (emit (list (` (try (#;Right (~ expr)) + (~ (' (catch java.lang.Exception e + (#;Left (.! (getMessage [] []) e)))))))))) |