Trait BackendEntry 

pub trait BackendEntry:
    Copy
    + Debug
    + Send
    + Sync
    + 'static {
    const KIND: &'static str;

    // Required methods
    fn name(&self) -> &'static str;
    fn priority(&self) -> i32;
}

What a registry entry tells the registry about the backend it names.

Entries are small Copy values (a name, a rank, a constructor function pointer), so a launch takes them out of the registry and builds the backend without holding the world.

Required Associated Constants

const KIND: &'static str

The backend kind, for messages: "render", "layout", "window".

Required Methods

fn name(&self) -> &'static str

The name the backend is registered and selected under.

fn priority(&self) -> i32

Trial order when nothing names a backend: higher first.

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 BackendEntry for LayoutBackend

const KIND: &'static str = "layout"

impl BackendEntry for RenderBackend

const KIND: &'static str = "render"

impl BackendEntry for WindowBackendEntry

const KIND: &'static str = "window"