Struct style::data::EagerPseudoStyles

pub struct EagerPseudoStyles(_);

A lazily-allocated list of styles for eagerly-cascaded pseudo-elements.

We use an Arc so that sharing these styles via the style sharing cache does not require duplicate allocations. We leverage the copy-on-write semantics of Arc::make_mut(), which is free (i.e. does not require atomic RMU operations) in servo_arc.

Methods

impl EagerPseudoStyles

pub fn is_empty(&self) -> bool

Returns whether there are any pseudo styles.

pub fn as_optional_array(&self) -> Option<&[Option<Arc<ComputedValues>>; 3]>

Grabs a reference to the list of styles, if they exist.

pub fn as_array(&self) -> &[Option<Arc<ComputedValues>>; 3]

Grabs a reference to the list of styles or a list of None if there are no styles to be had.

pub fn get(&self, pseudo: &PseudoElement) -> Option<&Arc<ComputedValues>>

Returns a reference to the style for a given eager pseudo, if it exists.

pub fn set(&mut self, pseudo: &PseudoElement, value: Arc<ComputedValues>)

Sets the style for the eager pseudo.

Trait Implementations

impl Clone for EagerPseudoStyles

fn clone(&self) -> EagerPseudoStyles

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for EagerPseudoStyles

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Default for EagerPseudoStyles

fn default() -> EagerPseudoStyles

Returns the "default value" for a type.