Struct intrusive_collections::linked_list::CursorMut
[−]
[src]
pub struct CursorMut<'a, A: Adapter<Link=Link> + 'a> { /* fields omitted */ }
A cursor which provides mutable access to a LinkedList
.
Methods
impl<'a, A: Adapter<Link=Link>> CursorMut<'a, A>
[src]
fn is_null(&self) -> bool
Checks if the cursor is currently pointing to the null object.
fn get(&self) -> Option<&'a A::Value>
Returns a reference to the object that the cursor is currently pointing to.
This returns None if the cursor is currently pointing to the null object.
fn as_cursor(&self) -> Cursor<A>
Returns a read-only cursor pointing to the current element.
The lifetime of the returned Cursor
is bound to that of the
CursorMut
, which means it cannot outlive the CursorMut
and that the
CursorMut
is frozen for the lifetime of the Cursor
.
fn move_next(&mut self)
Moves the cursor to the next element of the LinkedList
.
If the cursor is pointer to the null object then this will move it to
the first element of the LinkedList
. If it is pointing to the last
element of the LinkedList
then this will move it to the null object.
fn move_prev(&mut self)
Moves the cursor to the previous element of the LinkedList
.
If the cursor is pointer to the null object then this will move it to
the last element of the LinkedList
. If it is pointing to the first
element of the LinkedList
then this will move it to the null object.
fn remove(&mut self) -> Option<A::Pointer>
Removes the current element from the LinkedList
.
A pointer to the element that was removed is returned, and the cursor is
moved to point to the next element in the LinkedList
.
If the cursor is currently pointing to the null object then no element
is removed and None
is returned.
fn replace_with(&mut self, val: A::Pointer) -> Result<A::Pointer, A::Pointer>
Removes the current element from the LinkedList
and inserts another
object in its place.
A pointer to the element that was removed is returned, and the cursor is modified to point to the newly added element.
If the cursor is currently pointing to the null object then an error is
returned containing the given val
parameter.
Panics
Panics if the new element is already linked to a different intrusive collection.
fn insert_after(&mut self, val: A::Pointer)
Inserts a new element into the LinkedList
after the current one.
If the cursor is pointing at the null object then the new element is
inserted at the front of the LinkedList
.
Panics
Panics if the new element is already linked to a different intrusive collection.
fn insert_before(&mut self, val: A::Pointer)
Inserts a new element into the LinkedList
before the current one.
If the cursor is pointing at the null object then the new element is
inserted at the end of the LinkedList
.
Panics
Panics if the new element is already linked to a different intrusive collection.
fn splice_after(&mut self, list: LinkedList<A>)
Inserts the elements from the given LinkedList
after the current one.
If the cursor is pointing at the null object then the new elements are
inserted at the start of the LinkedList
.
fn splice_before(&mut self, list: LinkedList<A>)
Moves all element from the given LinkedList
before the current one.
If the cursor is pointing at the null object then the new elements are
inserted at the end of the LinkedList
.
fn split_after(&mut self) -> LinkedList<A> where A: Clone
Splits the list into two after the current element. This will return a new list consisting of everything after the cursor, with the original list retaining everything before.
If the cursor is pointing at the null object then the entire contents
of the LinkedList
are moved.
fn split_before(&mut self) -> LinkedList<A> where A: Clone
Splits the list into two before the current element. This will return a new list consisting of everything before the cursor, with the original list retaining everything after.
If the cursor is pointing at the null object then the entire contents
of the LinkedList
are moved.