A simple calculator program
#1Error in Types.hs
Shouldn't it be Either in line 36
getVar :: Text -> Env -> Result Double
getVar v = maybe (Left err) Right . M.lookup v
where err = v <> " undefined"A simple calculator program
Shouldn't it be Either in line 36
getVar :: Text -> Env -> Result Double
getVar v = maybe (Left err) Right . M.lookup v
where err = v <> " undefined"