Trait Lens 

trait Lens {
    type Value;
    type Target;

    // Required methods
    fn get<'a>(&self, target: &'a Self::Target) -> &'a Self::Value;
    fn set(&self, target: &Self::Target, value: Self::Value) -> Self::Target;
}

Required Associated Types

type Value

type Target

Required Methods

fn get<'a>(&self, target: &'a Self::Target) -> &'a Self::Value

fn set(&self, target: &Self::Target, value: Self::Value) -> Self::Target

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl Lens for WeightLens

type Value = u64

type Target = Weight