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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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7
src/platform/android.rs
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@ -101,20 +101,19 @@ pub trait WindowExtAndroid {
impl WindowExtAndroid for dyn Window + '_ {
fn content_rect(&self) -> Rect {
let window = self.as_any().downcast_ref::<crate::platform_impl::Window>().unwrap();
let window = self.cast_ref::<crate::platform_impl::Window>().unwrap();
window.content_rect()
}
fn config(&self) -> ConfigurationRef {
let window = self.as_any().downcast_ref::<crate::platform_impl::Window>().unwrap();
let window = self.cast_ref::<crate::platform_impl::Window>().unwrap();
window.config()
}
}
impl ActiveEventLoopExtAndroid for dyn ActiveEventLoop + '_ {
fn android_app(&self) -> &AndroidApp {
let event_loop =
self.as_any().downcast_ref::<crate::platform_impl::ActiveEventLoop>().unwrap();
let event_loop = self.cast_ref::<crate::platform_impl::ActiveEventLoop>().unwrap();
&event_loop.app
}
}