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Define a GEq1 instance for :*: with GEq1 fields.

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This commit is contained in:
Rob Rix 2017-02-21 16:19:23 -05:00
parent 2fab8ef27a
commit 98f733cf46
1 changed files with 3 additions and 0 deletions
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3
src/Data/Functor/Classes/Eq/Generic.hs
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@ -40,3 +40,6 @@ instance (GEq1 f, GEq1 g) => GEq1 (f :+: g) where
(L1 a, L1 b) -> gliftEq f a b
(R1 a, R1 b) -> gliftEq f a b
_ -> False
instance (GEq1 f, GEq1 g) => GEq1 (f :*: g) where
gliftEq f (a1 :*: b1) (a2 :*: b2) = gliftEq f a1 a2 && gliftEq f b1 b2