Trait Lens 

pub trait Lens: Sized + 'static {
    type Source: Node;
    type Target;

    // Required method
    fn view<'a>(&self, data: &'a Self::Source) -> Self::Target;
}

Required Associated Types

type Source: Node

type Target

Required Methods

fn view<'a>(&self, data: &'a Self::Source) -> Self::Target

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<A, B> Lens for And<A, B>

where A: Lens, B: Lens<Source = <A as Lens>::Source>,

type Source = <A as Lens>::Source

type Target = (<A as Lens>::Target, <B as Lens>::Target)

impl<A, B> Lens for Then<A, B>

where A: Lens, B: Lens<Source = <A as Lens>::Target>,

type Source = <A as Lens>::Source

type Target = <B as Lens>::Target

impl<T, I> Lens for Index<T, I>

where T: 'static + Index<I>, I: 'static + Clone, <T as Index<I>>::Output: Sized + Clone,

type Source = T

type Target = <T as Index<I>>::Output