--
-- Copyright (c) 2009-2011, ERICSSON AB
-- All rights reserved.
--
-- 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
-- documentation and/or other materials provided with the distribution.
-- * Neither the name of the ERICSSON AB nor the names of its contributors
-- may be used to endorse or promote products derived from this software
-- without specific prior written permission.
--
-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-- AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-- DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
-- FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-- DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
-- SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-- CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-- OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-- OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
--
-- | Module "Data.TypeLevel.Num.Aliases" is re-exported because
-- wrappers use type level numbers frequently
module Feldspar.Wrap ( Wrap(..), Data'(..), module Data.TypeLevel.Num.Aliases, D0, D1, D2, D3, D4, D5, D6, D7, D8, D9) where
import Feldspar.Core.Constructs
import Feldspar.Core.Types
import Language.Syntactic
import Data.TypeLevel.Num.Aliases
import Data.TypeLevel.Num.Reps (D0, D1, D2, D3, D4, D5, D6, D7, D8, D9 )
-- | Wrapping Feldspar functions
class Wrap t w where
wrap :: t -> w
-- | Basic instances to handle @Data a@ input and output.
-- Other instances are located in the concerned libraries.
instance Wrap (Data a) (Data a) where
wrap = id
instance (Wrap t u) => Wrap (Data a -> t) (Data a -> u) where
wrap f = \x -> wrap $ f x
-- | Extended 'Data' to be used in wrappers
data Data' s a =
Data'
{ unData' :: Data a
}
-- Syntactic instance for 'Data''
instance Type a => Syntactic (Data' s a) FeldDomainAll
where
type Internal (Data' s a) = a
desugar = desugar . unData'
sugar = Data' . sugar
instance Type a => Syntax (Data' s a)