never executed always true always false

    1 {-# LANGUAGE DeriveGeneric, DeriveDataTypeable, DeriveFunctor, DeriveTraversable, DeriveFoldable #-}
    2 
    3 module Conjure.Language.Expression.Op.True where
    4 
    5 import Conjure.Prelude
    6 import Conjure.Language.Expression.Op.Internal.Common
    7 
    8 import qualified Data.Aeson as JSON             -- aeson
    9 import qualified Data.Aeson.KeyMap as KM
   10 
   11 import qualified Data.Vector as V               -- vector
   12 
   13 
   14 data OpTrue x = OpTrue x
   15     deriving (Eq, Ord, Show, Data, Functor, Traversable, Foldable, Typeable, Generic)
   16 
   17 instance Serialize x => Serialize (OpTrue x)
   18 instance Hashable  x => Hashable  (OpTrue x)
   19 instance ToJSON    x => ToJSON    (OpTrue x) where toJSON = genericToJSON jsonOptions
   20 instance FromJSON  x => FromJSON  (OpTrue x) where parseJSON = genericParseJSON jsonOptions
   21 
   22 instance TypeOf (OpTrue x) where
   23     typeOf (OpTrue _) = return TypeBool
   24 
   25 instance SimplifyOp OpTrue x where
   26     simplifyOp _ = na "simplifyOp{OpTrue}"
   27 
   28 instance Pretty x => Pretty (OpTrue x) where
   29     prettyPrec _ (OpTrue a) = "true" <> prParens (pretty a)
   30 
   31 instance VarSymBreakingDescription x => VarSymBreakingDescription (OpTrue x) where
   32     varSymBreakingDescription (OpTrue a) = JSON.Object $ KM.fromList
   33         [ ("type", JSON.String "OpTrue")
   34         , ("children", JSON.Array $ V.fromList
   35             [ varSymBreakingDescription a
   36             ])
   37         ]