diff options
Diffstat (limited to 'src/Parser/Core.hs')
| -rw-r--r-- | src/Parser/Core.hs | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/src/Parser/Core.hs b/src/Parser/Core.hs index f40889a..cb66529 100644 --- a/src/Parser/Core.hs +++ b/src/Parser/Core.hs @@ -139,13 +139,14 @@ unifyExpr off pa expr = if showType ( Just (ArgumentKeyword kw), SomeArgumentType atype ) = "`" <> kw <> " <" <> textExprType atype <> ">'" err = parseError . FancyError off . S.singleton . ErrorFail . T.unpack - defaults <- forM (M.toAscList remaining) $ \case - arg@(_, SomeArgumentType NoDefault) -> err $ "missing " <> showType arg <> " argument" - (kw, SomeArgumentType (ExprDefault def)) -> return (kw, SomeExpr def) + defaults <- fmap catMaybes $ forM (M.toAscList remaining) $ \case + arg@(_, SomeArgumentType RequiredArgument) -> err $ "missing " <> showType arg <> " argument" + (_, SomeArgumentType OptionalArgument) -> return Nothing + (kw, SomeArgumentType (ExprDefault def)) -> return $ Just ( kw, SomeExpr def ) (kw, SomeArgumentType atype@ContextDefault) -> do SomeExpr context <- gets testContext context' <- unifyExpr off atype context - return (kw, SomeExpr context') + return $ Just ( kw, SomeExpr context' ) return (FunctionEval $ ArgsApp (FunctionArguments $ M.fromAscList defaults) expr) | Just (Refl :: DynamicType :~: b) <- eqT |