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utils: add cast_* methods to allow more type-safe casting

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Relying on just `as_any` was error prone and will become redundant in
the future, once upcasting will be stable, we also won't to impose a
restriction on to which concrete type we're casting, since casting
to a type that doesn't implement a base trait doesn't make much
sense.

Co-authored-by: Kirill Chibisov <contact@kchibisov.com>
This commit is contained in:
Mads Marquart 2025-03-11 14:35:25 +01:00 • committed by GitHub
parent 5cada36ae8
commit 16d5f46db1
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19 changed files with 158 additions and 136 deletions
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4
src/event_loop.rs
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@ -25,7 +25,7 @@ use crate::application::ApplicationHandler;
use crate::error::{EventLoopError, RequestError};
use crate::monitor::MonitorHandle;
use crate::platform_impl;
use crate::utils::AsAny;
use crate::utils::{impl_dyn_casting, AsAny};
use crate::window::{CustomCursor, CustomCursorSource, Theme, Window, WindowAttributes};
/// Provides a way to retrieve events from the system and from the windows that were registered to
@ -406,6 +406,8 @@ impl HasDisplayHandle for dyn ActiveEventLoop + '_ {
}
}
impl_dyn_casting!(ActiveEventLoop);
/// A proxy for the underlying display handle.
///
/// The purpose of this type is to provide a cheaply cloneable handle to the underlying