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Windows: Add #[deny(unsafe_op_in_unsafe_fn)] (#3070)

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Mads Marquart 2023-09-29 16:07:44 +02:00 • committed by GitHub
parent cb58c49a90
commit b2b4564a5f
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8 changed files with 339 additions and 289 deletions
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10
src/platform_impl/windows/event_loop/runner.rs
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@ -96,10 +96,12 @@ impl<T> EventLoopRunner<T> {
where
F: FnMut(Event<T>),
{
let old_event_handler = self.event_handler.replace(mem::transmute::<
Option<Box<dyn FnMut(Event<T>)>>,
Option<Box<dyn FnMut(Event<T>)>>,
>(Some(Box::new(f))));
// Erase closure lifetime.
// SAFETY: Caller upholds that the lifetime of the closure is upheld.
let f = unsafe {
mem::transmute::<Box<dyn FnMut(Event<T>)>, Box<dyn FnMut(Event<T>)>>(Box::new(f))
};
let old_event_handler = self.event_handler.replace(Some(f));
assert!(old_event_handler.is_none());
}