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Define a Show1 instance for BindingF.

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Rob Rix 2017-09-10 21:51:57 -04:00
parent 5956cc77ae
commit 831eb67de8
1 changed files with 5 additions and 0 deletions
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src/Data/Functor/Binding.hs
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@ -35,6 +35,11 @@ instance (Eq1 f, Eq a) => Eq (BindingF f a) where
(==) = eq1
instance Show1 f => Show1 (BindingF f) where
liftShowsPrec sp sl d (Let vars body) = showsBinaryWith (const (liftShowList sp sl)) (liftShowsPrec sp sl) "Let" d vars body
liftShowsPrec _ _ d (VarF var) = showsUnaryWith showsPrec "Var" d var
instance Pretty Metavar where
pretty (Metavar v) = pretty v