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module Feldspar.Core.Frontend.Logic
where

import Prelude hiding ((&&), (||))
import Feldspar.Core.Constructs
import Feldspar.Core.Constructs.Logic
import Feldspar.Core.Frontend.Literal
import Feldspar.Core.Frontend.Condition

infixr 3 &&
infixr 3 &&*
infixr 2 ||
infixr 2 ||*

not :: Data Bool -> Data Bool
not = sugarSymF Not

(&&) :: Data Bool -> Data Bool -> Data Bool
(&&) = sugarSymF And

(||) :: Data Bool -> Data Bool -> Data Bool
(||) = sugarSymF Or


-- | Lazy conjunction, second argument only evaluated if necessary
(&&*) :: Data Bool -> Data Bool -> Data Bool
a &&* b =  a ? b $ false

-- | Lazy disjunction, second argument only evaluated if necessary
(||*) :: Data Bool -> Data Bool -> Data Bool
a ||* b = a ? true $ b