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Don’t call ToTag for constant fields.

This commit is contained in:
Rob Rix 2019-09-23 17:38:53 -04:00
parent ea917d2d0d
commit 26d064d451
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@ -132,8 +132,8 @@ instance (GToTag f, GToTag g) => GToTag (f :+: g) where
gtag (L1 l) = gtag l
gtag (R1 r) = gtag r
instance ToTag t => GToTag (K1 R t) where
gtag = tag . unK1
instance GToTag (K1 R t) where
gtag _ = pure ()
instance GToTag Par1 where
gtag _ = pure ()