Source code
Revision control
Copy as Markdown
Other Tools
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
use crate::{Atom, LocalName, ShrinkIfNeeded};
use crate::selector_map::{MaybeCaseInsensitiveHashMap, PrecomputedHashMap};
/// A map for filtering by easily-discernable features in a selector.
#[derive(Clone, Debug, MallocSizeOf)]
pub struct SimpleBucketsMap<T> {
pub classes: MaybeCaseInsensitiveHashMap<Atom, T>,
pub ids: MaybeCaseInsensitiveHashMap<Atom, T>,
pub local_names: PrecomputedHashMap<LocalName, T>,
}
impl<T> Default for SimpleBucketsMap<T> {
fn default() -> Self {
// TODO(dshin): This is a bit annoying - even if these maps would be empty,
// deriving this trait requires `T: Default`
Self {
classes: Default::default(),
ids: Default::default(),
local_names: Default::default(),
}
}
}
impl<T> SimpleBucketsMap<T> {
/// Clears the map.
#[inline(always)]
pub fn clear(&mut self) {
self.classes.clear();
self.ids.clear();
self.local_names.clear();
}
/// Shrink the capacity of the map if needed.
#[inline(always)]
pub fn shrink_if_needed(&mut self) {
self.classes.shrink_if_needed();
self.ids.shrink_if_needed();
self.local_names.shrink_if_needed();
}
/// Returns whether there's nothing in the map.
#[inline(always)]
pub fn is_empty(&self) -> bool {
self.classes.is_empty() &&
self.ids.is_empty() &&
self.local_names.is_empty()
}
}