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Make DomRefCell not mutate the borrow flag non-atomically

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This commit is contained in:
Anthony Ramine 2020-04-27 10:59:38 +02:00
parent 45f1316c62
commit 15db31769c
2 changed files with 6 additions and 5 deletions
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9
components/script/dom/bindings/cell.rs
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@ -45,11 +45,12 @@ impl<T> DomRefCell<T> {
&mut *self.value.as_ptr()
}
/// Version of the above that we use during restyle while the script thread
/// is blocked.
pub fn borrow_mut_for_layout(&self) -> RefMut<T> {
/// Mutably borrow a cell for layout. Ideally this would use
/// `RefCell::try_borrow_mut_unguarded` but that doesn't exist yet.
#[allow(unsafe_code)]
pub unsafe fn borrow_mut_for_layout(&self) -> &mut T {
debug_assert!(thread_state::get().is_layout());
self.value.borrow_mut()
&mut *self.value.as_ptr()
}
}