lens-tutorial 1.0.2 → 1.0.3

raw patch · 2 files changed

+5/−4 lines, 2 filesPVP: major bump suggested

API removals or changes: PVP suggests a major version bump

API changes (from Hackage documentation)

- Control.Lens.Tutorial: traverse :: Traversable t => forall a (f :: * -> *) b. Applicative f => (a -> f b) -> t a -> f (t b)

+ Control.Lens.Tutorial: traverse :: Traversable t => forall (f :: * -> *) a b. Applicative f => (a -> f b) -> t a -> f (t b)

lens-tutorial.cabal view

@@ -1,5 +1,5 @@ Name: lens-tutorial-Version: 1.0.2+Version: 1.0.3 Cabal-Version: >=1.10 Build-Type: Simple License: BSD3

src/Control/Lens/Tutorial.hs view

@@ -229,10 +229,11 @@ > type Getting b a b  = (b -> Const b b) -> (a -> Const b a) > > -- ... equivalent to: (b ->       b  ) -> (a ->       b  )->-> -- ... equivalent to:                     (a ->       b  ) -    ... you can build a `view`-like function.+    ... and if you apply a function of that type to `id` then you get a+    `view`-like function++> --                                        (a ->       b  )      Those are not the only two `Functor`s we can pick.  In fact, we can do a     lot more with lenses than just get and set values, but those are the two