X-Git-Url: https://ruin.nu/git/?p=proglang.git;a=blobdiff_plain;f=Typecheck.hs;h=bfef73a68a318cc46188649474881eab2760c4d0;hp=18146506a227857ce792198ba9e8575491c7f553;hb=74c984c4c70336e7b7618cd934db819263ceb565;hpb=9254ff63648d9a6f4b058c0a53438db7b60a28cd diff --git a/Typecheck.hs b/Typecheck.hs index 1814650..bfef73a 100644 --- a/Typecheck.hs +++ b/Typecheck.hs @@ -50,6 +50,20 @@ typeCheckExp (ENeg e) = do typeCheckExp (ENot e) = do TBool <- typeCheckExp e return TBool +typeCheckExp (EFunc i as) = do + state <- get + (t,ts) <- lookup i $ functions state + checkParams as ts + return t + +checkParams :: (MonadState State m) => [Exp] -> [Type] -> m () +checkParams [] [] = return () +checkParams [] _ = fail "Too for arguments when calling function" +checkParams _ [] = fail "Too many arguments when calling function" +checkParams (e:es) (t:ts) = do + t2 <- typeCheckExp e + assert (t == t2) "Arugments does not match" + checkParams es ts typeCheckVar :: (MonadState State m) => Ident -> m Type typeCheckVar i = do