Enum intrusive_collections::rbtree::Entry [−][src]
pub enum Entry<'a, A: Adapter> where
A::LinkOps: RBTreeOps, {
Occupied(CursorMut<'a, A>),
Vacant(InsertCursor<'a, A>),
}
Expand description
An entry in a RBTree
.
See the documentation for RBTree::entry
.
Variants
Occupied(CursorMut<'a, A>)
Tuple Fields
0: CursorMut<'a, A>
An occupied entry.
Vacant(InsertCursor<'a, A>)
Tuple Fields
0: InsertCursor<'a, A>
A vacant entry.
Implementations
Inserts an element into the RBTree
if the entry is vacant, returning
a CursorMut
to the resulting value. If the entry is occupied then a
CursorMut
pointing to the element is returned.
Panics
Panics if the Entry
is vacant and the new element is already linked to
a different intrusive collection.
pub fn or_insert_with<F>(self, default: F) -> CursorMut<'a, A> where
F: FnOnce() -> <A::PointerOps as PointerOps>::Pointer,
pub fn or_insert_with<F>(self, default: F) -> CursorMut<'a, A> where
F: FnOnce() -> <A::PointerOps as PointerOps>::Pointer,
Calls the given function and inserts the result into the RBTree
if the
entry is vacant, returning a CursorMut
to the resulting value. If the
entry is occupied then a CursorMut
pointing to the element is
returned and the function is not executed.
Panics
Panics if the Entry
is vacant and the new element is already linked to
a different intrusive collection.