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stylo: Use font metrics provider as a cache for font size results

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Manish Goregaokar 2017-04-04 11:11:27 -07:00 • committed by Manish Goregaokar
parent e402c72d0e
commit 2febe7ccde
8 changed files with 60 additions and 24 deletions
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5
components/style/gecko_string_cache/mod.rs
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@ -186,10 +186,11 @@ impl fmt::Display for WeakAtom {
impl Atom {
/// Execute a callback with the atom represented by `ptr`.
pub unsafe fn with<F>(ptr: *mut nsIAtom, callback: &mut F) where F: FnMut(&Atom) {
pub unsafe fn with<F, R: 'static>(ptr: *mut nsIAtom, callback: &mut F) -> R where F: FnMut(&Atom) -> R {
let atom = Atom(WeakAtom::new(ptr));
callback(&atom);
let ret = callback(&atom);
mem::forget(atom);
ret
}
/// Creates an atom from an static atom pointer without checking in release