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Introduce an NthIndexCache type and pipe it from ThreadLocalStyleContext to MatchingContext.

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Some future refactoring here to pass fewer things as parameters would be nice.
This commit is contained in:
Bobby Holley 2017-09-20 12:43:29 -07:00
parent 05c03d5104
commit 48466bf876
11 changed files with 83 additions and 24 deletions
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17
components/selectors/matching.rs
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@ -724,26 +724,26 @@ fn matches_simple_selector<E, F>(
element.is_empty()
}
Component::NthChild(a, b) => {
matches_generic_nth_child(element, a, b, false, false, flags_setter)
matches_generic_nth_child(element, context, a, b, false, false, flags_setter)
}
Component::NthLastChild(a, b) => {
matches_generic_nth_child(element, a, b, false, true, flags_setter)
matches_generic_nth_child(element, context, a, b, false, true, flags_setter)
}
Component::NthOfType(a, b) => {
matches_generic_nth_child(element, a, b, true, false, flags_setter)
matches_generic_nth_child(element, context, a, b, true, false, flags_setter)
}
Component::NthLastOfType(a, b) => {
matches_generic_nth_child(element, a, b, true, true, flags_setter)
matches_generic_nth_child(element, context, a, b, true, true, flags_setter)
}
Component::FirstOfType => {
matches_generic_nth_child(element, 0, 1, true, false, flags_setter)
matches_generic_nth_child(element, context, 0, 1, true, false, flags_setter)
}
Component::LastOfType => {
matches_generic_nth_child(element, 0, 1, true, true, flags_setter)
matches_generic_nth_child(element, context, 0, 1, true, true, flags_setter)
}
Component::OnlyOfType => {
matches_generic_nth_child(element, 0, 1, true, false, flags_setter) &&
matches_generic_nth_child(element, 0, 1, true, true, flags_setter)
matches_generic_nth_child(element, context, 0, 1, true, false, flags_setter) &&
matches_generic_nth_child(element, context, 0, 1, true, true, flags_setter)
}
Component::Negation(ref negated) => {
context.nesting_level += 1;
@ -767,6 +767,7 @@ fn select_name<'a, T>(is_html: bool, local_name: &'a T, local_name_lower: &'a T)
#[inline]
fn matches_generic_nth_child<E, F>(element: &E,
context: &mut LocalMatchingContext<E::Impl>,
a: i32,
b: i32,
is_of_type: bool,