Struct FontFeatureValueMap 

pub(crate) struct FontFeatureValueMap {
    map: HashMap<HashKey, FontFeatureValue>,
}

Stores accumulated data of all active @font-feature-value rules.

Fields

map: HashMap<HashKey, FontFeatureValue>

Implementations

impl FontFeatureValueMap

pub(crate) fn lookup( &self, family_name: Atom, kind: AlternateKindRequiringResolution, name: Atom, ) -> Option<FontFeatureValue>

Looks up a single identifier in the map.

pub(crate) fn add_rule(&mut self, rule: &FontFeatureValuesRule)

Adds the values from a new @font-feature-values rule to the map.

Conflicting entries are overwritten, so it is the callers responsibility to add the rules in ascending cascade order.

Trait Implementations

impl Debug for FontFeatureValueMap

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

Formats the value using the given formatter.

impl Default for FontFeatureValueMap

fn default() -> FontFeatureValueMap

Returns the “default value” for a type.

impl MallocSizeOf for FontFeatureValueMap

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.