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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/startup_notify.rs
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@ -75,15 +75,12 @@ impl EventLoopExtStartupNotify for dyn ActiveEventLoop + '_ {
impl WindowExtStartupNotify for dyn Window + '_ {
fn request_activation_token(&self) -> Result<AsyncRequestSerial, RequestError> {
#[cfg(wayland_platform)]
if let Some(window) = self.as_any().downcast_ref::<crate::platform_impl::wayland::Window>()
{
if let Some(window) = self.cast_ref::<crate::platform_impl::wayland::Window>() {
return window.request_activation_token();
}
#[cfg(x11_platform)]
if let Some(window) =
self.as_any().downcast_ref::<crate::platform_impl::x11::window::Window>()
{
if let Some(window) = self.cast_ref::<crate::platform_impl::x11::window::Window>() {
return window.request_activation_token();
}