9ff046fd76
http://www.robohornet.org gives a score of 101.36 on master, and 102.68 with this PR. The latter is slightly better, but probably within noise level. So it looks like this PR does not affect DOM performance. This is expected since `Box::new` is defined as: ```rust impl<T> Box<T> { #[inline(always)] pub fn new(x: T) -> Box<T> { box x } } ``` With inlining, it should compile to the same as box syntax. Source-Repo: https://github.com/servo/servo Source-Revision: a9022be0c3e30249845ca5947ac0c0a6743c7991
114 lines
4.1 KiB
Rust
114 lines
4.1 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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use dom::attr::Attr;
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use dom::bindings::codegen::Bindings::ElementBinding::ElementMethods;
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use dom::bindings::codegen::Bindings::NamedNodeMapBinding;
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use dom::bindings::codegen::Bindings::NamedNodeMapBinding::NamedNodeMapMethods;
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use dom::bindings::error::{Error, Fallible};
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use dom::bindings::reflector::{Reflector, reflect_dom_object};
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use dom::bindings::root::{Dom, DomRoot};
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use dom::bindings::str::DOMString;
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use dom::bindings::xmlname::namespace_from_domstring;
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use dom::element::Element;
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use dom::window::Window;
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use dom_struct::dom_struct;
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use html5ever::LocalName;
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use std::ascii::AsciiExt;
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#[dom_struct]
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pub struct NamedNodeMap {
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reflector_: Reflector,
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owner: Dom<Element>,
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}
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impl NamedNodeMap {
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fn new_inherited(elem: &Element) -> NamedNodeMap {
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NamedNodeMap {
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reflector_: Reflector::new(),
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owner: Dom::from_ref(elem),
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}
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}
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pub fn new(window: &Window, elem: &Element) -> DomRoot<NamedNodeMap> {
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reflect_dom_object(Box::new(NamedNodeMap::new_inherited(elem)),
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window, NamedNodeMapBinding::Wrap)
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}
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}
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impl NamedNodeMapMethods for NamedNodeMap {
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// https://dom.spec.whatwg.org/#dom-namednodemap-length
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fn Length(&self) -> u32 {
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self.owner.attrs().len() as u32
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}
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// https://dom.spec.whatwg.org/#dom-namednodemap-item
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fn Item(&self, index: u32) -> Option<DomRoot<Attr>> {
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self.owner.attrs().get(index as usize).map(|js| DomRoot::from_ref(&**js))
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}
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// https://dom.spec.whatwg.org/#dom-namednodemap-getnameditem
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fn GetNamedItem(&self, name: DOMString) -> Option<DomRoot<Attr>> {
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self.owner.get_attribute_by_name(name)
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}
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// https://dom.spec.whatwg.org/#dom-namednodemap-getnameditemns
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fn GetNamedItemNS(&self, namespace: Option<DOMString>, local_name: DOMString)
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-> Option<DomRoot<Attr>> {
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let ns = namespace_from_domstring(namespace);
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self.owner.get_attribute(&ns, &LocalName::from(local_name))
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}
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// https://dom.spec.whatwg.org/#dom-namednodemap-setnameditem
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fn SetNamedItem(&self, attr: &Attr) -> Fallible<Option<DomRoot<Attr>>> {
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self.owner.SetAttributeNode(attr)
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}
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// https://dom.spec.whatwg.org/#dom-namednodemap-setnameditemns
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fn SetNamedItemNS(&self, attr: &Attr) -> Fallible<Option<DomRoot<Attr>>> {
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self.SetNamedItem(attr)
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}
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// https://dom.spec.whatwg.org/#dom-namednodemap-removenameditem
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fn RemoveNamedItem(&self, name: DOMString) -> Fallible<DomRoot<Attr>> {
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let name = self.owner.parsed_name(name);
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self.owner.remove_attribute_by_name(&name).ok_or(Error::NotFound)
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}
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// https://dom.spec.whatwg.org/#dom-namednodemap-removenameditemns
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fn RemoveNamedItemNS(&self, namespace: Option<DOMString>, local_name: DOMString)
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-> Fallible<DomRoot<Attr>> {
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let ns = namespace_from_domstring(namespace);
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self.owner.remove_attribute(&ns, &LocalName::from(local_name))
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.ok_or(Error::NotFound)
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}
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// https://dom.spec.whatwg.org/#dom-namednodemap-item
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fn IndexedGetter(&self, index: u32) -> Option<DomRoot<Attr>> {
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self.Item(index)
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}
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// check-tidy: no specs after this line
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fn NamedGetter(&self, name: DOMString) -> Option<DomRoot<Attr>> {
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self.GetNamedItem(name)
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}
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// https://heycam.github.io/webidl/#dfn-supported-property-names
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fn SupportedPropertyNames(&self) -> Vec<DOMString> {
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let mut names = vec!();
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let html_element_in_html_document = self.owner.html_element_in_html_document();
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for attr in self.owner.attrs().iter() {
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let s = &**attr.name();
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if html_element_in_html_document && !s.bytes().all(|b| b.to_ascii_lowercase() == b) {
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continue
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}
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if !names.iter().any(|name| &*name == s) {
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names.push(DOMString::from(s));
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}
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}
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names
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}
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}
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