Struct style::sharing::ValidationData

pub struct ValidationData {
    class_list: Option<SmallVec<[AtomIdent; 5]>>,
    part_list: Option<SmallVec<[AtomIdent; 5]>>,
    pres_hints: Option<SmallVec<[ApplicableDeclarationBlock; 5]>>,
    parent_style_identity: Option<OpaqueComputedValues>,
    revalidation_match_results: Option<RevalidationResult>,
}

Some data we want to avoid recomputing all the time while trying to share style.

Fields

class_list: Option<SmallVec<[AtomIdent; 5]>>

The class list of this element.

TODO(emilio): Maybe check whether rules for these classes apply to the element?

part_list: Option<SmallVec<[AtomIdent; 5]>>

The part list of this element.

TODO(emilio): Maybe check whether rules with these part names apply to the element?

pres_hints: Option<SmallVec<[ApplicableDeclarationBlock; 5]>>

The list of presentational attributes of the element.

parent_style_identity: Option<OpaqueComputedValues>

The pointer identity of the parent ComputedValues.

revalidation_match_results: Option<RevalidationResult>

The cached result of matching this entry against the revalidation selectors.

Implementations

impl ValidationData

pub fn take(&mut self) -> Self

Move the cached data to a new instance, and return it.

pub fn pres_hints<E>(&mut self, element: E) -> &[ApplicableDeclarationBlock]where E: TElement,

Get or compute the list of presentational attributes associated with this element.

pub fn part_list<E>(&mut self, element: E) -> &[AtomIdent]where E: TElement,

Get or compute the part-list associated with this element.

pub fn class_list<E>(&mut self, element: E) -> &[AtomIdent]where E: TElement,

Get or compute the class-list associated with this element.

pub fn parent_style_identity<E>(&mut self, el: E) -> OpaqueComputedValueswhere E: TElement,

Get or compute the parent style identity.

fn revalidation_match_results<E>( &mut self, element: E, stylist: &Stylist, bloom: &StyleBloom<E>, selector_caches: &mut SelectorCaches, bloom_known_valid: bool, needs_selector_flags: NeedsSelectorFlags ) -> &RevalidationResultwhere E: TElement,

Computes the revalidation results if needed, and returns it. Inline so we know at compile time what bloom_known_valid is.

Trait Implementations

impl Debug for ValidationData

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

Formats the value using the given formatter.

impl Default for ValidationData

fn default() -> ValidationData

Returns the “default value” for a type.