Struct style::stylist::StylistSelectorVisitor

struct StylistSelectorVisitor<'a> {
    passed_rightmost_selector: bool,
    needs_revalidation: &'a mut bool,
    in_selector_list_of: SelectorListKind,
    mapped_ids: &'a mut PrecomputedHashSet<Atom>,
    nth_of_mapped_ids: &'a mut PrecomputedHashSet<Atom>,
    attribute_dependencies: &'a mut PrecomputedHashSet<LocalName>,
    nth_of_class_dependencies: &'a mut PrecomputedHashSet<Atom>,
    nth_of_attribute_dependencies: &'a mut PrecomputedHashSet<LocalName>,
    nth_of_custom_state_dependencies: &'a mut PrecomputedHashSet<AtomIdent>,
    state_dependencies: &'a mut ElementState,
    nth_of_state_dependencies: &'a mut ElementState,
    document_state_dependencies: &'a mut DocumentState,
}

A selector visitor implementation that collects all the state the Stylist cares about a selector.

Fields

passed_rightmost_selector: bool

Whether we’ve past the rightmost compound selector, not counting pseudo-elements.

needs_revalidation: &'a mut bool

Whether the selector needs revalidation for the style sharing cache.

in_selector_list_of: SelectorListKind

Flags for which selector list-containing components the visitor is inside of, if any

mapped_ids: &'a mut PrecomputedHashSet<Atom>

The filter with all the id’s getting referenced from rightmost selectors.

nth_of_mapped_ids: &'a mut PrecomputedHashSet<Atom>

The filter with the IDs getting referenced from the selector list of :nth-child(… of ) selectors.

attribute_dependencies: &'a mut PrecomputedHashSet<LocalName>

The filter with the local names of attributes there are selectors for.

nth_of_class_dependencies: &'a mut PrecomputedHashSet<Atom>

The filter with the classes getting referenced from the selector list of :nth-child(… of ) selectors.

nth_of_attribute_dependencies: &'a mut PrecomputedHashSet<LocalName>

The filter with the local names of attributes there are selectors for within the selector list of :nth-child(… of ) selectors.

nth_of_custom_state_dependencies: &'a mut PrecomputedHashSet<AtomIdent>

The filter with the local names of custom states in selectors for within the selector list of :nth-child(… of ) selectors.

state_dependencies: &'a mut ElementState

All the states selectors in the page reference.

nth_of_state_dependencies: &'a mut ElementState

All the state selectors in the page reference within the selector list of :nth-child(… of ) selectors.

document_state_dependencies: &'a mut DocumentState

All the document states selectors in the page reference.

Implementations

impl<'a> StylistSelectorVisitor<'a>

fn visit_nested_selector( &mut self, in_selector_list_of: SelectorListKind, selector: &Selector<SelectorImpl>, )

Trait Implementations

impl<'a> SelectorVisitor for StylistSelectorVisitor<'a>

type Impl = SelectorImpl

The selector implementation this visitor wants to visit.

fn visit_complex_selector(&mut self, combinator: Option<Combinator>) -> bool

Visits a complex selector.

fn visit_selector_list( &mut self, list_kind: SelectorListKind, list: &[Selector<Self::Impl>], ) -> bool

Visit a nested selector list. The caller is responsible to call visit into the internal selectors if / as needed.

fn visit_relative_selector_list( &mut self, list: &[RelativeSelector<Self::Impl>], ) -> bool

Visit a nested relative selector list. The caller is responsible to call visit into the internal selectors if / as needed.

fn visit_attribute_selector( &mut self, _ns: &NamespaceConstraint<&Namespace>, name: &LocalName, lower_name: &LocalName, ) -> bool

Visit an attribute selector that may match (there are other selectors that may never match, like those containing whitespace or the empty string).

fn visit_simple_selector(&mut self, s: &Component<SelectorImpl>) -> bool

Visit a simple selector.