diff options
Diffstat (limited to 'src/GF/Canon/GFCC/CheckGFCC.hs')
| -rw-r--r-- | src/GF/Canon/GFCC/CheckGFCC.hs | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/src/GF/Canon/GFCC/CheckGFCC.hs b/src/GF/Canon/GFCC/CheckGFCC.hs index 05f591627..7de57cd5b 100644 --- a/src/GF/Canon/GFCC/CheckGFCC.hs +++ b/src/GF/Canon/GFCC/CheckGFCC.hs @@ -58,20 +58,20 @@ inferTerm args trm = case trm of (t',tt) <- infer t (u',tu) <- infer u case tt of - R tys -> case tu of - R vs -> infer $ foldl P t' [P u' (C i) | i <- [0 .. length vs - 1]] - --- R [v] -> infer $ P t v - --- R (v:vs) -> infer $ P (head tys) (R vs) + R tys -> case tu of + R vs -> infer $ foldl P t' [P u' (C i) | i <- [0 .. length vs - 1]] + --- R [v] -> infer $ P t v + --- R (v:vs) -> infer $ P (head tys) (R vs) - C i -> do - testErr (i < length tys) - ("required more than " ++ show i ++ " fields in " ++ prt (R tys)) - (returnt $ tys !! i) -- record: index must be known - _ -> do - let typ = head tys - testErr (all (==typ) tys) ("different types in table " ++ prt trm) - returnt typ -- table: must be same - _ -> Bad $ "projection from " ++ prt t ++ " : " ++ prt tt + C i -> do + testErr (i < length tys) + ("required more than " ++ show i ++ " fields in " ++ prt (R tys)) + return (P t' u', tys !! i) -- record: index must be known + _ -> do + let typ = head tys + testErr (all (==typ) tys) ("different types in table " ++ prt trm) + return (P t' u', typ) -- table: types must be same + _ -> Bad $ "projection from " ++ prt t ++ " : " ++ prt tt FV [] -> returnt str ---- FV (t:ts) -> do (t',ty) <- infer t |