Struct style::invalidation::element::invalidation_map::RelativeSelectorInvalidationMap

pub struct RelativeSelectorInvalidationMap {
    pub map: InvalidationMap,
    pub ts_state_to_selector: TSStateDependencyMap,
    pub type_to_selector: LocalNameDependencyMap,
    pub any_to_selector: AnyDependencyMap,
    pub used: bool,
    pub needs_ancestors_traversal: bool,
}

A map to store all relative selector invalidations. This keeps a lot more data than the usual map, because any change can generate upward traversals that need to be handled separately.

Fields

map: InvalidationMap

Portion common to the normal invalidation map, except that this is for relative selectors and their inner selectors.

ts_state_to_selector: TSStateDependencyMap

A map for a given tree-structural pseudo-class to all the relative selector dependencies with that type.

type_to_selector: LocalNameDependencyMap

A map from a given type name to all the relative selector dependencies with that type.

any_to_selector: AnyDependencyMap

All relative selector dependencies that specify *.

used: bool

Flag indicating if any relative selector is used.

needs_ancestors_traversal: bool

Flag indicating if invalidating a relative selector requires ancestor traversal.

Implementations

impl RelativeSelectorInvalidationMap

pub fn new() -> Self

Creates an empty InvalidationMap.

pub fn len(&self) -> usize

Returns the number of dependencies stored in the invalidation map.

pub fn clear(&mut self)

Clears this map, leaving it empty.

pub fn shrink_if_needed(&mut self)

Shrink the capacity of hash maps if needed.

Trait Implementations

impl Clone for RelativeSelectorInvalidationMap

fn clone(&self) -> RelativeSelectorInvalidationMap

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for RelativeSelectorInvalidationMap

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl MallocSizeOf for RelativeSelectorInvalidationMap

fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize

Measure the heap usage of all descendant heap-allocated structures, but not the space taken up by the value itself.