Struct Cursor 

pub struct Cursor<'list, T: ?Sized + Types> { /* private fields */ }

A shared cursor into a linked list.

This can be created by methods like PinList::cursor_ghost.

Each cursor conceptually points to a single item in the list. It can also point to the space between the start and end of the list, in which case it is called the ghost cursor.

This type is not Copy to prevent accidental copies, but its Clone implementation is just a bitwise copy — very cheap.

Implementations

impl<'list, T: ?Sized + Types> Cursor<'list, T>

pub fn move_next(&mut self)

Move the cursor to the next element in the linked list.

pub fn move_previous(&mut self)

Move the cursor to the previous element in the linked list.

pub fn list(&self) -> &'list PinList<T>

Retrieve a shared reference to the list this cursor uses.

pub fn protected(&self) -> Option<&'list T::Protected>

Retrieve a shared reference to the protected data of this linked list node.

Returns None if the cursor is the ghost cursor.

pub fn unprotected(&self) -> Option<&'list T::Unprotected>

Retrieve a shared reference to the unprotected data of this linked list node.

Returns None if the cursor is the ghost cursor.

Trait Implementations

impl<T: ?Sized + Types> Clone for Cursor<'_, T>

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: ?Sized + Types> Debug for Cursor<'_, T>

where T::Unprotected: Debug, T::Protected: Debug,

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T: ?Sized + Types> Send for Cursor<'_, T>

where PinList<T>: Sync,

impl<T: ?Sized + Types> Sync for Cursor<'_, T>

where PinList<T>: Sync,