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Stop using mem::transmute_copy.

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This commit is contained in:
Ms2ger 2016-09-05 09:54:40 +02:00
parent c46003eb05
commit 5ae29b02b6
2 changed files with 10 additions and 5 deletions
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10
components/script/dom/bindings/js.rs
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@ -126,7 +126,10 @@ impl<T: Castable> LayoutJS<T> {
T: DerivedFrom<U>
{
debug_assert!(thread_state::get().is_layout());
unsafe { mem::transmute_copy(self) }
let ptr: *const T = *self.ptr;
LayoutJS {
ptr: unsafe { NonZero::new(ptr as *const U) },
}
}
/// Cast a DOM object downwards to one of the interfaces it might implement.
@ -136,7 +139,10 @@ impl<T: Castable> LayoutJS<T> {
debug_assert!(thread_state::get().is_layout());
unsafe {
if (*self.unsafe_get()).is::<U>() {
Some(mem::transmute_copy(self))
let ptr: *const T = *self.ptr;
Some(LayoutJS {
ptr: NonZero::new(ptr as *const U),
})
} else {
None
}