{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE TypeSynonymInstances #-}
{-# LANGUAGE MultiParamTypeClasses #-}

--
-- Copyright (c) 2009-2011, ERICSSON AB
-- All rights reserved.
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-- Redistribution and use in source and binary forms, with or without
-- modification, are permitted provided that the following conditions are met:
--
--     * Redistributions of source code must retain the above copyright notice,
--       this list of conditions and the following disclaimer.
--     * Redistributions in binary form must reproduce the above copyright
--       notice, this list of conditions and the following disclaimer in the
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--       may be used to endorse or promote products derived from this software
--       without specific prior written permission.
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-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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--

module Feldspar.Core.Frontend.Literal where

import Language.Syntactic
import Feldspar.Core.Constructs.Literal
import Feldspar.Core.Constructs
import Feldspar.Core.Interpretation

value :: Syntax a => Internal a -> a
value = sugarSymF . Literal

false :: Data Bool
false = value False

true :: Data Bool
true = value True

instance Syntactic ()
  where
    type Domain ()   = FeldDomain
    type Internal () = ()
    desugar = appSymC . c' . Literal
    sugar _ = ()