lcc/Hcompta/LCC/Sym/Zeroable.hs

   1 {-# LANGUAGE UndecidableInstances #-}
   2 {-# OPTIONS_GHC -fno-warn-orphans #-}
   3 -- | Symantic for 'Zeroable'.
   4 module Hcompta.LCC.Sym.Zeroable where
   5
   6 import Language.Symantic
   7 import Language.Symantic.Lib (a0)
   8
   9 import Hcompta.Quantity as H hiding (zero)
  10 import qualified Hcompta.Quantity as H
  11
  12 -- * Class 'Sym_Zeroable'
  13 type instance Sym Zeroable = Sym_Zeroable
  14 class Sym_Zeroable term where
  15         zero :: Zeroable a => term a
  16         default zero :: Sym_Zeroable (UnT term) => Trans term => Zeroable a => term a
  17         zero = trans zero
  18
  19 instance Sym_Zeroable Eval where
  20         zero = Eval H.zero
  21 instance Sym_Zeroable View where
  22         zero = view0 "zero"
  23 instance (Sym_Zeroable r1, Sym_Zeroable r2) => Sym_Zeroable (Dup r1 r2) where
  24         zero = dup0 @Sym_Zeroable zero
  25 instance (Sym_Zeroable term, Sym_Lambda term) => Sym_Zeroable (BetaT term)
  26
  27 instance NameTyOf Zeroable where
  28         nameTyOf _c = ["Zeroable"] `Mod` "Zeroable"
  29 instance FixityOf Zeroable
  30 instance ClassInstancesFor Zeroable
  31 instance TypeInstancesFor Zeroable
  32 instance Gram_Term_AtomsFor src ss g Zeroable
  33 instance (Source src, SymInj ss Zeroable) => ModuleFor src ss Zeroable where
  34         moduleFor = ["Zeroable"] `moduleWhere`
  35          [ "zero" := teZeroable_zero
  36          ]
  37
  38 tyZeroable :: Source src => Type src vs a -> Type src vs (Zeroable a)
  39 tyZeroable a = tyConstLen @(K Zeroable) @Zeroable (lenVars a) `tyApp` a
  40
  41 teZeroable_zero :: TermDef Zeroable '[Proxy a] (Zeroable a #> a)
  42 teZeroable_zero = Term (tyZeroable a0) a0 (teSym @Zeroable zero)