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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.
187 lines
6 KiB
Rust
187 lines
6 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::bindings::cell::DomRefCell;
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use dom::bindings::codegen::Bindings::URLSearchParamsBinding::URLSearchParamsMethods;
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use dom::bindings::codegen::Bindings::URLSearchParamsBinding::URLSearchParamsWrap;
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use dom::bindings::codegen::UnionTypes::USVStringOrURLSearchParams;
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use dom::bindings::error::Fallible;
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use dom::bindings::iterable::Iterable;
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use dom::bindings::reflector::{Reflector, reflect_dom_object};
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use dom::bindings::root::DomRoot;
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use dom::bindings::str::{DOMString, USVString};
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use dom::bindings::weakref::MutableWeakRef;
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use dom::globalscope::GlobalScope;
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use dom::url::URL;
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use dom_struct::dom_struct;
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use encoding::types::EncodingRef;
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use url::form_urlencoded;
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// https://url.spec.whatwg.org/#interface-urlsearchparams
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#[dom_struct]
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pub struct URLSearchParams {
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reflector_: Reflector,
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// https://url.spec.whatwg.org/#concept-urlsearchparams-list
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list: DomRefCell<Vec<(String, String)>>,
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// https://url.spec.whatwg.org/#concept-urlsearchparams-url-object
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url: MutableWeakRef<URL>,
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}
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impl URLSearchParams {
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fn new_inherited(url: Option<&URL>) -> URLSearchParams {
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URLSearchParams {
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reflector_: Reflector::new(),
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list: DomRefCell::new(url.map_or(Vec::new(), |url| url.query_pairs())),
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url: MutableWeakRef::new(url),
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}
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}
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pub fn new(global: &GlobalScope, url: Option<&URL>) -> DomRoot<URLSearchParams> {
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reflect_dom_object(Box::new(URLSearchParams::new_inherited(url)), global,
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URLSearchParamsWrap)
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}
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// https://url.spec.whatwg.org/#dom-urlsearchparams-urlsearchparams
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pub fn Constructor(global: &GlobalScope, init: Option<USVStringOrURLSearchParams>) ->
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Fallible<DomRoot<URLSearchParams>> {
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// Step 1.
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let query = URLSearchParams::new(global, None);
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match init {
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Some(USVStringOrURLSearchParams::USVString(init)) => {
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// Step 2.
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*query.list.borrow_mut() = form_urlencoded::parse(init.0.as_bytes())
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.into_owned().collect();
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},
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Some(USVStringOrURLSearchParams::URLSearchParams(init)) => {
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// Step 3.
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*query.list.borrow_mut() = init.list.borrow().clone();
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},
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None => {}
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}
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// Step 4.
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Ok(query)
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}
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pub fn set_list(&self, list: Vec<(String, String)>) {
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*self.list.borrow_mut() = list;
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}
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}
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impl URLSearchParamsMethods for URLSearchParams {
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// https://url.spec.whatwg.org/#dom-urlsearchparams-append
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fn Append(&self, name: USVString, value: USVString) {
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// Step 1.
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self.list.borrow_mut().push((name.0, value.0));
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// Step 2.
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self.update_steps();
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}
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// https://url.spec.whatwg.org/#dom-urlsearchparams-delete
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fn Delete(&self, name: USVString) {
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// Step 1.
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self.list.borrow_mut().retain(|&(ref k, _)| k != &name.0);
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// Step 2.
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self.update_steps();
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}
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// https://url.spec.whatwg.org/#dom-urlsearchparams-get
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fn Get(&self, name: USVString) -> Option<USVString> {
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let list = self.list.borrow();
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list.iter().find(|&kv| kv.0 == name.0)
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.map(|ref kv| USVString(kv.1.clone()))
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}
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// https://url.spec.whatwg.org/#dom-urlsearchparams-getall
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fn GetAll(&self, name: USVString) -> Vec<USVString> {
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let list = self.list.borrow();
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list.iter().filter_map(|&(ref k, ref v)| {
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if k == &name.0 {
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Some(USVString(v.clone()))
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} else {
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None
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}
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}).collect()
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}
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// https://url.spec.whatwg.org/#dom-urlsearchparams-has
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fn Has(&self, name: USVString) -> bool {
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let list = self.list.borrow();
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list.iter().any(|&(ref k, _)| k == &name.0)
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}
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// https://url.spec.whatwg.org/#dom-urlsearchparams-set
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fn Set(&self, name: USVString, value: USVString) {
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{
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// Step 1.
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let mut list = self.list.borrow_mut();
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let mut index = None;
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let mut i = 0;
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list.retain(|&(ref k, _)| {
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if index.is_none() {
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if k == &name.0 {
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index = Some(i);
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} else {
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i += 1;
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}
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true
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} else {
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k != &name.0
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}
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});
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match index {
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Some(index) => list[index].1 = value.0,
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None => list.push((name.0, value.0)), // Step 2.
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};
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} // Un-borrow self.list
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// Step 3.
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self.update_steps();
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}
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// https://url.spec.whatwg.org/#stringification-behavior
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fn Stringifier(&self) -> DOMString {
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DOMString::from(self.serialize(None))
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}
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}
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impl URLSearchParams {
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// https://url.spec.whatwg.org/#concept-urlencoded-serializer
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pub fn serialize(&self, encoding: Option<EncodingRef>) -> String {
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let list = self.list.borrow();
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form_urlencoded::Serializer::new(String::new())
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.encoding_override(encoding)
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.extend_pairs(&*list)
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.finish()
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}
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}
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impl URLSearchParams {
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// https://url.spec.whatwg.org/#concept-urlsearchparams-update
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fn update_steps(&self) {
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if let Some(url) = self.url.root() {
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url.set_query_pairs(&self.list.borrow())
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}
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}
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}
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impl Iterable for URLSearchParams {
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type Key = USVString;
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type Value = USVString;
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fn get_iterable_length(&self) -> u32 {
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self.list.borrow().len() as u32
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}
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fn get_value_at_index(&self, n: u32) -> USVString {
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let value = self.list.borrow()[n as usize].1.clone();
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USVString(value)
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}
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fn get_key_at_index(&self, n: u32) -> USVString {
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let key = self.list.borrow()[n as usize].0.clone();
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USVString(key)
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}
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}
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