Struct selectors::NthIndexCache

pub struct NthIndexCache {
    nth: NthIndexCacheInner,
    nth_of_selectors: NthIndexOfSelectorsCaches,
    nth_last: NthIndexCacheInner,
    nth_last_of_selectors: NthIndexOfSelectorsCaches,
    nth_of_type: NthIndexCacheInner,
    nth_last_of_type: NthIndexCacheInner,
}

Expand description

A cache to speed up matching of nth-index-like selectors.

See [1] for some discussion around the design tradeoffs.

[1] https://bugzilla.mozilla.org/show_bug.cgi?id=1401855#c3

Fields§

§nth: NthIndexCacheInner§nth_of_selectors: NthIndexOfSelectorsCaches§nth_last: NthIndexCacheInner§nth_last_of_selectors: NthIndexOfSelectorsCaches§nth_of_type: NthIndexCacheInner§nth_last_of_type: NthIndexCacheInner

Implementations§

impl NthIndexCache

pub fn get<Impl: SelectorImpl>( &mut self, is_of_type: bool, is_from_end: bool, selectors: &[Selector<Impl>], ) -> &mut NthIndexCacheInner

Gets the appropriate cache for the given parameters.

Trait Implementations§

impl Default for NthIndexCache

fn default() -> NthIndexCache

Returns the “default value” for a type. Read more

Auto Trait Implementations§

impl Freeze for NthIndexCache

impl RefUnwindSafe for NthIndexCache

impl Send for NthIndexCache

impl Sync for NthIndexCache

impl Unpin for NthIndexCache

impl UnwindSafe for NthIndexCache

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.