Type Alias StateDependencyMap

pub type StateDependencyMap = SelectorMap<StateDependency>;

Dependency mapping for non-tree-strctural pseudo-class states.

Aliased Type

struct StateDependencyMap {
    pub root: SmallVec<[StateDependency; 1]>,
    pub id_hash: MaybeCaseInsensitiveHashMap<Atom<AtomStaticSet>, SmallVec<[StateDependency; 1]>>,
    pub class_hash: MaybeCaseInsensitiveHashMap<Atom<AtomStaticSet>, SmallVec<[StateDependency; 1]>>,
    pub local_name_hash: HashMap<GenericAtomIdent<LocalNameStaticSet>, SmallVec<[StateDependency; 1]>, BuildHasherDefault<PrecomputedHasher>>,
    pub attribute_hash: HashMap<GenericAtomIdent<LocalNameStaticSet>, SmallVec<[StateDependency; 1]>, BuildHasherDefault<PrecomputedHasher>>,
    pub namespace_hash: HashMap<GenericAtomIdent<NamespaceStaticSet>, SmallVec<[StateDependency; 1]>, BuildHasherDefault<PrecomputedHasher>>,
    pub rare_pseudo_classes: SmallVec<[StateDependency; 1]>,
    pub other: SmallVec<[StateDependency; 1]>,
    pub count: usize,
}

Fields

root: SmallVec<[StateDependency; 1]>

Rules that have :root selectors.

id_hash: MaybeCaseInsensitiveHashMap<Atom<AtomStaticSet>, SmallVec<[StateDependency; 1]>>

A hash from an ID to rules which contain that ID selector.

class_hash: MaybeCaseInsensitiveHashMap<Atom<AtomStaticSet>, SmallVec<[StateDependency; 1]>>

A hash from a class name to rules which contain that class selector.

local_name_hash: HashMap<GenericAtomIdent<LocalNameStaticSet>, SmallVec<[StateDependency; 1]>, BuildHasherDefault<PrecomputedHasher>>

A hash from local name to rules which contain that local name selector.

attribute_hash: HashMap<GenericAtomIdent<LocalNameStaticSet>, SmallVec<[StateDependency; 1]>, BuildHasherDefault<PrecomputedHasher>>

A hash from attributes to rules which contain that attribute selector.

namespace_hash: HashMap<GenericAtomIdent<NamespaceStaticSet>, SmallVec<[StateDependency; 1]>, BuildHasherDefault<PrecomputedHasher>>

A hash from namespace to rules which contain that namespace selector.

rare_pseudo_classes: SmallVec<[StateDependency; 1]>

Rules for pseudo-states that are rare but have global selectors.

other: SmallVec<[StateDependency; 1]>

All other rules.

count: usize

The number of entries in this map.

Implementations

impl<T> SelectorMap<T>

pub fn new() -> Self

Trivially constructs an empty SelectorMap.

pub fn shrink_if_needed(&mut self)

Shrink the capacity of the map if needed.

pub fn clear(&mut self)

Clears the hashmap retaining storage.

pub fn is_empty(&self) -> bool

Returns whether there are any entries in the map.

pub fn len(&self) -> usize

Returns the number of entries.

impl<T: SelectorMapEntry> SelectorMap<T>

pub fn insert( &mut self, entry: T, quirks_mode: QuirksMode, ) -> Result<(), AllocErr>

Inserts an entry into the correct bucket(s).

pub fn lookup<'a, E, F>( &'a self, element: E, quirks_mode: QuirksMode, relevant_attributes: Option<&mut RelevantAttributes>, f: F, ) -> bool

where E: TElement, F: FnMut(&'a T) -> bool,

Looks up entries by id, class, local name, namespace, and other (in order).

Each entry is passed to the callback, which returns true to continue iterating entries, or false to terminate the lookup.

Returns false if the callback ever returns false.

FIXME(bholley) This overlaps with SelectorMap::get_all_matching_rules, but that function is extremely hot and I’d rather not rearrange it.

fn lookup_with_state<'a, E, F>( &'a self, element: E, element_state: ElementState, quirks_mode: QuirksMode, relevant_attributes: Option<&mut RelevantAttributes>, f: F, ) -> bool

where E: TElement, F: FnMut(&'a T) -> bool,

pub fn lookup_with_additional<'a, E, F>( &'a self, element: E, quirks_mode: QuirksMode, additional_id: Option<&WeakAtom>, additional_classes: &[Atom], additional_states: ElementState, f: F, ) -> bool

where E: TElement, F: FnMut(&'a T) -> bool,

Performs a normal lookup, and also looks up entries for the passed-in id and classes.

Each entry is passed to the callback, which returns true to continue iterating entries, or false to terminate the lookup.

Returns false if the callback ever returns false.

Trait Implementations

impl<T: Clone + 'static> Clone for SelectorMap<T>

fn clone(&self) -> SelectorMap<T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Debug + 'static> Debug for SelectorMap<T>

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

Formats the value using the given formatter.

impl<T: 'static> Default for SelectorMap<T>

fn default() -> Self

Returns the “default value” for a type.

impl<T> MallocSizeOf for SelectorMap<T>

where T: MallocSizeOf + 'static,

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.