Data.RAVec.Tree.DF.Optics

Indexing

ix :: Wrd n -> Lens' (Tree n a) a

Index lens.

>>> let tree = Node (Node (Leaf 'a') (Leaf 'b')) (Node (Leaf 'c') (Leaf 'd'))
>>> tree & ix (W1 $ W0 WE) .~ 'z'
Node (Node (Leaf 'a') (Leaf 'b')) (Node (Leaf 'z') (Leaf 'd'))

Orphan instances

SNatI n => Each (Wrd n) (Tree n a) (Tree n b) a b

Methods

each :: IxTraversal (Wrd n) (Tree n a) (Tree n b) a b

Ixed (Tree n a)

Associated Types

type IxKind (Tree n a)

Methods

ix :: Index (Tree n a) -> Optic' (IxKind (Tree n a)) NoIx (Tree n a) (IxValue (Tree n a))