Language/Symantic/Expr/Int.hs

   1 {-# LANGUAGE DefaultSignatures #-}
   2 {-# LANGUAGE FlexibleContexts #-}
   3 {-# LANGUAGE ScopedTypeVariables #-}
   4 {-# LANGUAGE TypeFamilies #-}
   5 {-# LANGUAGE TypeOperators #-}
   6 -- | Expression for 'Int'.
   7 module Language.Symantic.Expr.Int where
   8
   9 import Language.Symantic.Type
  10 import Language.Symantic.Expr.Root
  11 import Language.Symantic.Expr.Error
  12 import Language.Symantic.Expr.From
  13 import Language.Symantic.Trans.Common
  14
  15 -- * Class 'Sym_Int'
  16 -- | Symantic.
  17 class Sym_Int repr where
  18         int :: Int -> repr Int
  19         default int :: Trans t repr => Int -> t repr Int
  20         int = trans_lift . int
  21
  22 -- * Type 'Expr_Int'
  23 -- | Expression.
  24 data Expr_Int (root:: *)
  25 type instance Root_of_Expr      (Expr_Int root)      = root
  26 type instance Type_of_Expr      (Expr_Int root)      = Type_Int
  27 type instance Sym_of_Expr       (Expr_Int root) repr = Sym_Int repr
  28 type instance Error_of_Expr ast (Expr_Int root)      = No_Error_Expr