{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE RankNTypes #-}
{-# LANGUAGE TypeOperators #-}

-- |
-- Module      :   Grisette.IR.SymPrim.Data.Prim.PartialEval.GeneralFun
-- Copyright   :   (c) Sirui Lu 2021-2023
-- License     :   BSD-3-Clause (see the LICENSE file)
--
-- Maintainer  :   siruilu@cs.washington.edu
-- Stability   :   Experimental
-- Portability :   GHC only
module Grisette.IR.SymPrim.Data.Prim.PartialEval.GeneralFun (pevalGeneralFunApplyTerm) where

import Grisette.Core.Data.Class.Function
import Grisette.IR.SymPrim.Data.Prim.InternedTerm.InternedCtors
import Grisette.IR.SymPrim.Data.Prim.InternedTerm.Term
import {-# SOURCE #-} Grisette.IR.SymPrim.Data.Prim.InternedTerm.TermSubstitution
import Grisette.IR.SymPrim.Data.Prim.PartialEval.PartialEval

pevalGeneralFunApplyTerm :: (SupportedPrim a, SupportedPrim b) => Term (a --> b) -> Term a -> Term b
pevalGeneralFunApplyTerm = totalize2 doPevalGeneralFunApplyTerm generalFunApplyTerm

doPevalGeneralFunApplyTerm :: (SupportedPrim a, SupportedPrim b) => Term (a --> b) -> Term a -> Maybe (Term b)
doPevalGeneralFunApplyTerm (ConTerm _ (GeneralFun arg tm)) v = Just $ substTerm arg v tm
doPevalGeneralFunApplyTerm _ _ = Nothing