{-# LANGUAGE TemplateHaskell #-} -- | -- Module: $HEADER$ -- Description: Example of HasVerbosity instance defined using -- TemplateHaskell code from lens package. -- Copyright: (c) 2015, Peter Trško -- License: BSD3 -- -- Maintainer: peter.trsko@gmail.com -- -- Example of HasVerbosity instance defined using TemplateHaskell code from -- package. module Example.ConfigTH ( Config , module Data.Verbosity.Class ) where import Control.Lens.TH (makeLenses) import Data.Verbosity.Class data Config = Config { _appVerbosity :: Verbosity -- , ... } deriving Show makeLenses ''Config instance HasVerbosity Config where verbosity = appVerbosity