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Make use of the list of Atoms in ClassSelector

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Make use of the list of Atoms in the class attribute selector
(ClassSelector) in selector_matching.

Fixes #3111
This commit is contained in:
Gilles Leblanc 2014-09-11 23:19:26 -04:00
parent a18633b163
commit 81a0d065f1
8 changed files with 71 additions and 5 deletions
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10
components/script/dom/attr.rs
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@ -188,6 +188,7 @@ impl<'a> AttrHelpers for JSRef<'a, Attr> {
pub trait AttrHelpersForLayout {
unsafe fn value_ref_forever(&self) -> &'static str;
unsafe fn value_atom_forever(&self) -> Option<Atom>;
unsafe fn value_tokens_forever(&self) -> Option<Items<Atom>>;
unsafe fn local_name_atom_forever(&self) -> Atom;
}
@ -207,6 +208,15 @@ impl AttrHelpersForLayout for Attr {
}
}
unsafe fn value_tokens_forever(&self) -> Option<Items<Atom>> {
// cast to point to T in RefCell<T> directly
let value = mem::transmute::<&RefCell<AttrValue>, &AttrValue>(self.value.deref());
match *value {
TokenListAttrValue(_, ref tokens) => Some(tokens.iter()),
_ => None,
}
}
unsafe fn local_name_atom_forever(&self) -> Atom {
self.local_name.clone()
}