Safe Haskell | Safe-Inferred |
---|---|
Language | Haskell2010 |
This module defines optics for constructing and manipulating finite IntSet
s.
Documentation
setmapped :: Setter' IntSet Int Source #
This Setter
can be used to change the type of a IntSet
by mapping the
elements to new values.
Sadly, you can't create a valid Traversal
for an IntSet
,
but you can manipulate it by reading using folded
and
reindexing it via setmapped
.
>>>
over setmapped (+1) (IntSet.fromList [1,2,3,4])
fromList [2,3,4,5]