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Move all PropertyDeclarationBlock from RwLock<_> to Locked<_>

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This commit is contained in:
Simon Sapin 2017-03-18 02:10:00 +01:00
parent aeffca2a59
commit 1bacd0eb15
28 changed files with 321 additions and 208 deletions
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32
components/script/dom/cssstyledeclaration.rs
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@ -11,10 +11,9 @@ use dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
use dom::bindings::str::DOMString;
use dom::cssrule::CSSRule;
use dom::element::Element;
use dom::node::{Node, window_from_node};
use dom::node::{Node, window_from_node, document_from_node};
use dom::window::Window;
use dom_struct::dom_struct;
use parking_lot::RwLock;
use servo_url::ServoUrl;
use std::ascii::AsciiExt;
use std::sync::Arc;
@ -23,6 +22,7 @@ use style::parser::ParserContextExtraData;
use style::properties::{Importance, PropertyDeclarationBlock, PropertyId, LonghandId, ShorthandId};
use style::properties::{parse_one_declaration, parse_style_attribute};
use style::selector_parser::PseudoElement;
use style::shared_lock::Locked;
use style_traits::ToCss;
// http://dev.w3.org/csswg/cssom/#the-cssstyledeclaration-interface
@ -40,7 +40,7 @@ pub enum CSSStyleOwner {
Element(JS<Element>),
CSSRule(JS<CSSRule>,
#[ignore_heap_size_of = "Arc"]
Arc<RwLock<PropertyDeclarationBlock>>),
Arc<Locked<PropertyDeclarationBlock>>),
}
impl CSSStyleOwner {
@ -55,10 +55,13 @@ impl CSSStyleOwner {
let mut changed = true;
match *self {
CSSStyleOwner::Element(ref el) => {
let document = document_from_node(&**el);
let shared_lock = document.style_shared_lock();
let mut attr = el.style_attribute().borrow_mut().take();
let result = if attr.is_some() {
let lock = attr.as_ref().unwrap();
let mut pdb = lock.write();
let mut guard = shared_lock.write();
let mut pdb = lock.write_with(&mut guard);
let result = f(&mut pdb, &mut changed);
result
} else {
@ -69,7 +72,7 @@ impl CSSStyleOwner {
// exact conditions under it changes.
changed = !pdb.declarations().is_empty();
if changed {
attr = Some(Arc::new(RwLock::new(pdb)));
attr = Some(Arc::new(shared_lock.wrap(pdb)));
}
result
@ -83,7 +86,8 @@ impl CSSStyleOwner {
//
// [1]: https://github.com/whatwg/html/issues/2306
if let Some(pdb) = attr {
let serialization = pdb.read().to_css_string();
let guard = shared_lock.read();
let serialization = pdb.read_with(&guard).to_css_string();
el.set_attribute(&local_name!("style"),
AttrValue::Declaration(serialization,
pdb));
@ -96,7 +100,10 @@ impl CSSStyleOwner {
result
}
CSSStyleOwner::CSSRule(ref rule, ref pdb) => {
let result = f(&mut *pdb.write(), &mut changed);
let result = {
let mut guard = rule.shared_lock().write();
f(&mut *pdb.write_with(&mut guard), &mut changed)
};
if changed {
rule.global().as_window().Document().invalidate_stylesheets();
}
@ -111,15 +118,20 @@ impl CSSStyleOwner {
match *self {
CSSStyleOwner::Element(ref el) => {
match *el.style_attribute().borrow() {
Some(ref pdb) => f(&pdb.read()),
Some(ref pdb) => {
let document = document_from_node(&**el);
let guard = document.style_shared_lock().read();
f(pdb.read_with(&guard))
}
None => {
let pdb = PropertyDeclarationBlock::new();
f(&pdb)
}
}
}
CSSStyleOwner::CSSRule(_, ref pdb) => {
f(&pdb.read())
CSSStyleOwner::CSSRule(ref rule, ref pdb) => {
let guard = rule.shared_lock().read();
f(pdb.read_with(&guard))
}
}
}