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Optimize lookupPrefix.

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This commit is contained in:
Ms2ger 2015-06-10 10:33:40 +02:00
parent 44a4b7886d
commit 749598f5a0
2 changed files with 12 additions and 7 deletions
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5
components/script/dom/node.rs
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@ -52,6 +52,7 @@ use devtools_traits::NodeInfo;
use parse::html::parse_html_fragment;
use script_traits::UntrustedNodeAddress;
use util::geometry::Au;
use util::namespace;
use util::str::{DOMString, null_str_as_empty};
use selectors::parser::{Selector, AttrSelector, NamespaceConstraint};
use selectors::parser::parse_author_origin_selector_list_from_str;
@ -2470,8 +2471,10 @@ impl<'a> NodeMethods for JSRef<'a, Node> {
// https://dom.spec.whatwg.org/#dom-node-lookupprefix
fn LookupPrefix(self, namespace: Option<DOMString>) -> Option<DOMString> {
let namespace = namespace::from_domstring(namespace);
// Step 1.
if null_str_as_empty(&namespace).is_empty() {
if namespace == ns!("") {
return None;
}