Struct CustomMediaEvaluator 

pub struct CustomMediaEvaluator<'a> {
    map: Option<(&'a CustomMediaMap, &'a SharedRwLockReadGuard<'a>)>,
    currently_evaluating: PrecomputedHashSet<Atom>,
}

A struct that can evaluate custom media conditions.

Fields

map: Option<(&'a CustomMediaMap, &'a SharedRwLockReadGuard<'a>)>

currently_evaluating: PrecomputedHashSet<Atom>

Set of media queries we’re currently evaluating, needed for cycle detection.

Implementations

impl<'a> CustomMediaEvaluator<'a>

pub fn new( map: &'a CustomMediaMap, guard: &'a SharedRwLockReadGuard<'a>, ) -> Self

Construct a new custom media evaluator with the given map and guard.

pub fn none() -> Self

Returns an evaluator that can’t evaluate custom queries.

pub fn matches( &mut self, ident: &DashedIdent, context: &Context<'_>, ) -> KleeneValue

Evaluates a custom media query.