Trait KeyExt 

pub trait KeyExt: Sized {
    // Required method
    fn write_key(&mut self) -> &mut DiffKey;

    // Provided method
    fn key(self, key: impl Hash) -> Self
       where Self: 'static { ... }
}

Trait for giving an element a stable identity across renders.

Required Methods

fn write_key(&mut self) -> &mut DiffKey

Returns a mutable reference to the element’s diff key.

Provided Methods

fn key(self, key: impl Hash) -> Self

where Self: 'static,

Assign a key derived from any hashable value, used to reconcile elements in dynamic lists. The key is scoped to the element’s type, so the same value used on different element or component types never collides.

Dyn Compatibility

This trait is not dyn compatible.

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

Implementors

impl KeyExt for Image

impl KeyExt for Label

impl KeyExt for Paragraph

impl KeyExt for Rect