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Define a Listable instance over Syntax leaf recur.

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Rob Rix 2017-01-05 15:22:56 -05:00
parent 7676e162cb
commit c6b3025635
1 changed files with 3 additions and 0 deletions
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src/Syntax.hs
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@ -167,3 +167,6 @@ instance Listable2 Syntax where
instance Listable leaf => Listable1 (Syntax leaf) where
liftTiers = liftTiers2 tiers
instance (Listable leaf, Listable recur) => Listable (Syntax leaf recur) where
tiers = tiers1