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style: Reorder some variants

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This doesn't make a difference, I was hoping it would allow us to remove the
special-casey code we have here:

  https://searchfox.org/mozilla-central/rev/997a56b018662e2940c99bbaf57a6ac9d1aa5422/servo/components/selectors/matching.rs#610-632

But it doesn't. Still I think it doesn't hurt tho, shouldn't change behavior.

Depends on D145485

Differential Revision: https://phabricator.services.mozilla.com/D145486
This commit is contained in:
Emilio Cobos Álvarez 2022-05-07 04:02:25 +00:00 • committed by Martin Robinson
parent 2939bf1a12
commit 2302d828a5
2 changed files with 70 additions and 69 deletions
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116
components/selectors/matching.rs
View file

@ -634,70 +634,13 @@ where
debug_assert!(context.shared.is_nested() || !context.shared.in_negation());
match *selector {
Component::Combinator(_) => unreachable!(),
Component::Part(ref parts) => {
let mut hosts = SmallVec::<[E; 4]>::new();
let mut host = match element.containing_shadow_host() {
Some(h) => h,
None => return false,
};
let current_host = context.shared.current_host;
if current_host != Some(host.opaque()) {
loop {
let outer_host = host.containing_shadow_host();
if outer_host.as_ref().map(|h| h.opaque()) == current_host {
break;
}
let outer_host = match outer_host {
Some(h) => h,
None => return false,
};
// TODO(emilio): if worth it, we could early return if
// host doesn't have the exportparts attribute.
hosts.push(host);
host = outer_host;
}
}
// Translate the part into the right scope.
parts.iter().all(|part| {
let mut part = part.clone();
for host in hosts.iter().rev() {
part = match host.imported_part(&part) {
Some(p) => p,
None => return false,
};
}
element.is_part(&part)
})
},
Component::Slotted(ref selector) => {
// <slots> are never flattened tree slottables.
!element.is_html_slot_element() &&
context.shared.nest(|context| {
matches_complex_selector(selector.iter(), element, context)
})
},
Component::PseudoElement(ref pseudo) => {
element.match_pseudo_element(pseudo, context.shared)
},
Component::LocalName(ref local_name) => matches_local_name(element, local_name),
Component::ExplicitUniversalType | Component::ExplicitAnyNamespace => true,
Component::Namespace(_, ref url) | Component::DefaultNamespace(ref url) => {
element.has_namespace(&url.borrow())
},
Component::ExplicitNoNamespace => {
let ns = crate::parser::namespace_empty_string::<E::Impl>();
element.has_namespace(&ns.borrow())
},
Component::ID(ref id) => {
element.has_id(id, context.shared.classes_and_ids_case_sensitivity())
},
Component::Class(ref class) => {
element.has_class(class, context.shared.classes_and_ids_case_sensitivity())
},
Component::LocalName(ref local_name) => matches_local_name(element, local_name),
Component::AttributeInNoNamespaceExists {
ref local_name,
ref local_name_lower,
@ -760,6 +703,62 @@ where
},
)
},
Component::Part(ref parts) => {
let mut hosts = SmallVec::<[E; 4]>::new();
let mut host = match element.containing_shadow_host() {
Some(h) => h,
None => return false,
};
let current_host = context.shared.current_host;
if current_host != Some(host.opaque()) {
loop {
let outer_host = host.containing_shadow_host();
if outer_host.as_ref().map(|h| h.opaque()) == current_host {
break;
}
let outer_host = match outer_host {
Some(h) => h,
None => return false,
};
// TODO(emilio): if worth it, we could early return if
// host doesn't have the exportparts attribute.
hosts.push(host);
host = outer_host;
}
}
// Translate the part into the right scope.
parts.iter().all(|part| {
let mut part = part.clone();
for host in hosts.iter().rev() {
part = match host.imported_part(&part) {
Some(p) => p,
None => return false,
};
}
element.is_part(&part)
})
},
Component::Slotted(ref selector) => {
// <slots> are never flattened tree slottables.
!element.is_html_slot_element() &&
context.shared.nest(|context| {
matches_complex_selector(selector.iter(), element, context)
})
},
Component::PseudoElement(ref pseudo) => {
element.match_pseudo_element(pseudo, context.shared)
},
Component::ExplicitUniversalType | Component::ExplicitAnyNamespace => true,
Component::Namespace(_, ref url) | Component::DefaultNamespace(ref url) => {
element.has_namespace(&url.borrow())
},
Component::ExplicitNoNamespace => {
let ns = crate::parser::namespace_empty_string::<E::Impl>();
element.has_namespace(&ns.borrow())
},
Component::NonTSPseudoClass(ref pc) => {
if let Some((ref rightmost, ref iter)) = context.quirks_data {
if pc.is_active_or_hover() && !element.is_link() && hover_and_active_quirk_applies(iter, context.shared, *rightmost) {
@ -833,6 +832,7 @@ where
}
true
}),
Component::Combinator(_) => unreachable!(),
}
}