never executed always true always false

    1 {-# LANGUAGE DeriveGeneric, DeriveDataTypeable, DeriveFunctor, DeriveTraversable, DeriveFoldable #-}
    2 
    3 module Conjure.Language.Expression.Op.Leq 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 OpLeq x = OpLeq x x
   15     deriving (Eq, Ord, Show, Data, Functor, Traversable, Foldable, Typeable, Generic)
   16 
   17 instance Serialize x => Serialize (OpLeq x)
   18 instance Hashable  x => Hashable  (OpLeq x)
   19 instance ToJSON    x => ToJSON    (OpLeq x) where toJSON = genericToJSON jsonOptions
   20 instance FromJSON  x => FromJSON  (OpLeq x) where parseJSON = genericParseJSON jsonOptions
   21 
   22 instance BinaryOperator (OpLeq x) where
   23     opLexeme _ = L_Leq
   24 
   25 instance (TypeOf x, Pretty x) => TypeOf (OpLeq x) where
   26     typeOf p@(OpLeq a b) = sameToSameToBool p a b [] $ \case
   27         TypeBool -> True
   28         TypeInt{} | ?typeCheckerMode == RelaxedIntegerTags -> True
   29         TypeInt TagInt -> True
   30         TypeInt TagEnum{} -> True
   31         _ -> False
   32 
   33 instance SimplifyOp OpLeq x where
   34     simplifyOp _ = na "simplifyOp{OpLeq}"
   35 
   36 instance Pretty x => Pretty (OpLeq x) where
   37     prettyPrec prec op@(OpLeq a b) = prettyPrecBinOp prec [op] a b
   38 
   39 instance VarSymBreakingDescription x => VarSymBreakingDescription (OpLeq x) where
   40     varSymBreakingDescription (OpLeq a b) = JSON.Object $ KM.fromList
   41         [ ("type", JSON.String "OpLeq")
   42         , ("children", JSON.Array $ V.fromList
   43             [ varSymBreakingDescription a
   44             , varSymBreakingDescription b
   45             ])
   46         ]