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Merge pull request #2404 from hannobraun/set

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Add `ObjectSet::before`
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Hanno Braun 2024-06-28 18:06:28 +02:00 committed by GitHub
commit 2c7c406aea
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1 changed files with 10 additions and 5 deletions
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15
crates/fj-core/src/topology/object_set.rs
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@ -35,10 +35,7 @@ impl<T> ObjectSet<T> {
let mut added = BTreeSet::new();
let mut inner = Vec::new();
// TASK: Inline.
let handles = handles.into_iter();
for handle in handles {
for handle in handles.into_iter() {
if added.contains(&handle) {
panic!(
"Constructing `ObjectSet` with duplicate handle: {:?}",
@ -124,9 +121,17 @@ impl<T> ObjectSet<T> {
self.inner.iter().position(|h| h.id() == handle.id())
}
/// Access the item before the provided one
///
/// Returns `None`, if the provided item is not in this set.
pub fn before(&self, handle: &Handle<T>) -> Option<&Handle<T>> {
self.index_of(handle)
.map(|index| self.nth_circular(index + self.len() - 1))
}
/// Access the item after the provided one
///
/// Returns `None`, if the provided item is not in this iterator.
/// Returns `None`, if the provided item is not in this set.
pub fn after(&self, handle: &Handle<T>) -> Option<&Handle<T>> {
self.index_of(handle)
.map(|index| self.nth_circular(index + 1))