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  • Committer: Michał Sośnicki
  • Date: 2015-12-06 23:41:55 UTC
  • Revision ID: git-v1:b4f47611084f9e22aeecb4d49659e900848e157e
Prefix unused type variables with an underscore.

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-- | Either type indexed by closed/open using type families
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type family IndexedCO ex a b :: *
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type instance IndexedCO C a b = a
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type instance IndexedCO O a b = b
 
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type instance IndexedCO C a _b = a
 
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type instance IndexedCO O _a b = b
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-- | Maybe type indexed by open/closed
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data MaybeO ex t where