-- | Map a port specification of a builtin function to a VHDL Signal to put in
-- a VHDLSignalMap
toVHDLSignalMap :: HsValueMap (String, AST.TypeMark) -> VHDLSignalMap
-toVHDLSignalMap = fmap (\(name, ty) -> (VHDL.mkVHDLId name, ty))
+toVHDLSignalMap = fmap (\(name, ty) -> Just (VHDL.mkVHDLId name, ty))
-- | Translate a concise representation of a builtin function to something
-- that can be put into FuncMap directly.