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Add differently-constrained maps and mapped #37

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Add differently-constrained maps and mapped #37

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@treeowl treeowl commented Aug 26, 2017

Sometimes, the target functor of maps or mapped offers
a more efficient fmap than the source functor. Add versions
of maps, mapped, and mapsM that use that one instead.

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treeowl commented Aug 26, 2017

I don't much like the 2 names I picked; please feel free to suggest better ones.

treeowl added 3 commits August 26, 2017 15:49
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Add differently-constrained maps and mapped
251b51b 
Sometimes, the target functor of `maps` or `mapped` offers
a more efficient `fmap` than the source functor. Add versions
of `maps`, `mapped`, and `mapsM` that use that one instead.
@treeowl
Add hoists
642aeb7 
Add explicitly "unsafe" `hoistUnexposed` and `hoistUnexposed2`.
Add "safe" `hoistUnexposed`.
@treeowl
Improve hoistUnexposed
312fa1c
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