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style: Use an enumerated array for per-pseudo maps.

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This avoids random HashMaps.

MozReview-Commit-ID: LQeZrLsoOnl
Signed-off-by: Emilio Cobos Álvarez <emilio@crisal.io>
This commit is contained in:
Emilio Cobos Álvarez 2017-08-07 19:35:08 +02:00
parent 69f02f4f7f
commit faa8646e0f
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GPG key ID: 056B727BB9C1027C
6 changed files with 294 additions and 155 deletions
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37
components/style/servo/selector_parser.rs
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@ -64,6 +64,10 @@ pub enum PseudoElement {
ServoInlineAbsolute,
}
/// The count of simple (non-functional) pseudo-elements (that is, all
/// pseudo-elements for now).
pub const SIMPLE_PSEUDO_COUNT: usize = PseudoElement::ServoInlineAbsolute as usize + 1;
impl ::selectors::parser::PseudoElement for PseudoElement {
type Impl = SelectorImpl;
@ -106,6 +110,17 @@ impl PseudoElement {
self.clone() as usize
}
/// An index for this pseudo-element to be indexed in an enumerated array.
#[inline]
pub fn simple_index(&self) -> Option<usize> {
Some(self.clone() as usize)
}
/// An array of `None`, one per simple pseudo-element.
pub fn simple_pseudo_none_array<T>() -> [Option<T>; SIMPLE_PSEUDO_COUNT] {
Default::default()
}
/// Creates a pseudo-element from an eager index.
#[inline]
pub fn from_eager_index(i: usize) -> Self {
@ -535,28 +550,6 @@ impl SelectorImpl {
}
}
/// Executes `fun` for each pseudo-element.
#[inline]
pub fn each_simple_pseudo_element<F>(mut fun: F)
where F: FnMut(PseudoElement),
{
fun(PseudoElement::Before);
fun(PseudoElement::After);
fun(PseudoElement::DetailsContent);
fun(PseudoElement::DetailsSummary);
fun(PseudoElement::Selection);
fun(PseudoElement::ServoText);
fun(PseudoElement::ServoInputText);
fun(PseudoElement::ServoTableWrapper);
fun(PseudoElement::ServoAnonymousTableWrapper);
fun(PseudoElement::ServoAnonymousTable);
fun(PseudoElement::ServoAnonymousTableRow);
fun(PseudoElement::ServoAnonymousTableCell);
fun(PseudoElement::ServoAnonymousBlock);
fun(PseudoElement::ServoInlineBlockWrapper);
fun(PseudoElement::ServoInlineAbsolute);
}
/// Returns the pseudo-class state flag for selector matching.
#[inline]
pub fn pseudo_class_state_flag(pc: &NonTSPseudoClass) -> ElementState {