Mirrors/servo
1
0
Fork 0
mirror of https://github.com/servo/servo.git synced 2025-08-06 14:10:11 +01:00
Code Issues Projects Releases Packages Wiki Activity

Bug 1331047: Implement the new traversal semantics for stylo. r=bholley,hiro

Browse source 
MozReview-Commit-ID: 4BXx9JpGZKX
Signed-off-by: Emilio Cobos Álvarez <emilio@crisal.io>
This commit is contained in:
Emilio Cobos Álvarez 2017-04-22 23:12:01 +02:00
parent 85ad961104
commit be0139ff3c
No known key found for this signature in database
GPG key ID: 056B727BB9C1027C
11 changed files with 548 additions and 363 deletions
Download patch file Download diff file Expand all files Collapse all files

39
components/style/gecko/selector_parser.rs
View file

@ -54,6 +54,26 @@ pub const EAGER_PSEUDO_COUNT: usize = 2;
impl PseudoElement {
/// Returns the kind of cascade type that a given pseudo is going to use.
///
/// In Gecko we only compute ::before and ::after eagerly. We save the rules
/// for anonymous boxes separately, so we resolve them as precomputed
/// pseudos.
///
/// We resolve the others lazily, see `Servo_ResolvePseudoStyle`.
pub fn cascade_type(&self) -> PseudoElementCascadeType {
if self.is_eager() {
debug_assert!(!self.is_anon_box());
return PseudoElementCascadeType::Eager
}
if self.is_anon_box() {
return PseudoElementCascadeType::Precomputed
}
PseudoElementCascadeType::Lazy
}
/// Gets the canonical index of this eagerly-cascaded pseudo-element.
#[inline]
pub fn eager_index(&self) -> usize {
@ -437,24 +457,9 @@ impl<'a> ::selectors::Parser for SelectorParser<'a> {
impl SelectorImpl {
#[inline]
/// Returns the kind of cascade type that a given pseudo is going to use.
///
/// In Gecko we only compute ::before and ::after eagerly. We save the rules
/// for anonymous boxes separately, so we resolve them as precomputed
/// pseudos.
///
/// We resolve the others lazily, see `Servo_ResolvePseudoStyle`.
/// Legacy alias for PseudoElement::cascade_type.
pub fn pseudo_element_cascade_type(pseudo: &PseudoElement) -> PseudoElementCascadeType {
if pseudo.is_eager() {
debug_assert!(!pseudo.is_anon_box());
return PseudoElementCascadeType::Eager
}
if pseudo.is_anon_box() {
return PseudoElementCascadeType::Precomputed
}
PseudoElementCascadeType::Lazy
pseudo.cascade_type()
}
/// A helper to traverse each eagerly cascaded pseudo-element, executing