Enum BackendEvent 

#[non_exhaustive]
pub enum BackendEvent<'a> {
    Winit(&'a WindowEvent),
}

One OS packet on its way into PointerBackend::translate.

This crate already re-exports winit types across its whole event-translation surface (translate_mouse_button, translate_ime, translate_key all take them), so borrowing a winit::event::WindowEvent here leaks nothing new. It is an enum rather than a bare reference so that a backend for a different window system — or a replay harness reading a recorded trace — can be added as a variant without breaking the trait.

#[non_exhaustive]: adding a variant must not be a breaking change.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Winit(&'a WindowEvent)

A winit window event, borrowed from the event loop.

Trait Implementations

impl<'a> Debug for BackendEvent<'a>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'a> From<&'a WindowEvent> for BackendEvent<'a>

fn from(event: &'a WindowEvent) -> Self

Converts to this type from the input type.