Struct wayland_backend::rs::map::ObjectMap

pub struct ObjectMap<Data> {
    client_objects: Vec<Option<Object<Data>>>,
    server_objects: Vec<Option<Object<Data>>>,
}

A holder for the object store of a connection

Keeps track of which object id is associated to which interface object, and which is currently unused.

Fields

client_objects: Vec<Option<Object<Data>>>

server_objects: Vec<Option<Object<Data>>>

Implementations

impl<Data: Clone> ObjectMap<Data>

pub fn new() -> Self

Create a new empty object map

pub fn find(&self, id: u32) -> Option<Object<Data>>

Find an object in the store

pub fn remove(&mut self, id: u32)

Remove an object from the store

Does nothing if the object didn’t previously exists

pub fn insert_at(&mut self, id: u32, object: Object<Data>) -> Result<(), ()>

Insert given object for given id

Can fail if the requested id is not the next free id of this store. (In which case this is a protocol error)

pub fn client_insert_new(&mut self, object: Object<Data>) -> u32

Allocate a new id for an object in the client namespace

pub fn server_insert_new(&mut self, object: Object<Data>) -> u32

Allocate a new id for an object in the server namespace

pub fn with<T, F: FnOnce(&mut Object<Data>) -> T>( &mut self, id: u32, f: F, ) -> Result<T, ()>

Mutably access an object of the map

pub fn all_objects(&self) -> impl Iterator<Item = (u32, &Object<Data>)>

Trait Implementations

impl<Data: Debug> Debug for ObjectMap<Data>

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

Formats the value using the given formatter.

impl<Data: Default> Default for ObjectMap<Data>

fn default() -> ObjectMap<Data>

Returns the “default value” for a type.