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Handle null strings in Namespace::new.

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This also avoids a string copy in the rare case of an unrecognized namespace.
This commit is contained in:
Ms2ger 2014-09-23 22:22:45 +02:00
parent 4546d5d23c
commit d3d7c1dabd
5 changed files with 21 additions and 24 deletions
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10
components/script/dom/htmlcollection.rs
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@ -12,7 +12,6 @@ use dom::element::{Element, AttributeHandlers, ElementHelpers};
use dom::node::{Node, NodeHelpers};
use dom::window::Window;
use servo_util::atom::Atom;
use servo_util::namespace;
use servo_util::namespace::Namespace;
use servo_util::str::{DOMString, split_html_space_chars};
@ -109,13 +108,8 @@ impl HTMLCollection {
pub fn by_tag_name_ns(window: JSRef<Window>, root: JSRef<Node>, tag: DOMString,
maybe_ns: Option<DOMString>) -> Temporary<HTMLCollection> {
let namespace_filter = match maybe_ns {
Some(namespace) => {
match namespace.as_slice() {
"*" => None,
ns => Some(Namespace::from_str(ns)),
}
},
None => Some(namespace::Null),
Some(ref namespace) if namespace.as_slice() == "*" => None,
ns => Some(Namespace::from_str(ns)),
};
if tag.as_slice() == "*" {