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{-# LANGUAGE DeriveGeneric #-}
module Main where
import GHC.Generics
import Text.Megaparsec
import Coalpit
data RecTest = RecTest { a :: Maybe Int
, b :: Maybe Double
, c :: Maybe Int }
deriving (Generic, Show)
instance ArgParser RecTest
instance ToArgs RecTest
data Foo = Bar Int
| Baz Int
| Qux [Int] (Maybe Int) (Either String Int) RecTest (Maybe Double)
deriving (Generic, Show)
instance ArgParser Foo
instance ToArgs Foo
data Wrap = Wrap { foo :: Maybe Foo, num :: Maybe Int }
deriving (Generic, Show)
instance ArgParser Wrap
instance ToArgs Wrap
main :: IO ()
main = do
let val = Wrap (Just $ Qux [1,2,3] Nothing (Left "foo bar")
(RecTest Nothing (Just 2.3) Nothing) Nothing) (Just 1)
a = toArgs defMod val
print val
print a
print $ parse (argParser defMod :: Parser Wrap) "test" a
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