Struct AssetRegistry 

pub struct AssetRegistry { /* private fields */ }

Central type-erased registry that maps numeric IDs to asset slots.

The registry does not know the concrete type of the assets it stores; type safety is enforced at the AssetHandle / AssetId boundary.

External code normally interacts with the registry through AssetServer.

Implementations

impl AssetRegistry

pub fn new() -> Self

Create an empty registry.

pub fn alloc(&mut self, type_id: TypeId, path: AssetPath) -> u64

Allocate a new slot and return its ID.

pub fn id_for_path(&self, path: &AssetPath) -> Option<u64>

Look up the ID already assigned to path, if any.

pub fn load_state(&self, id: u64) -> LoadState

Return the current LoadState for the given raw ID.

pub fn mark_loading(&mut self, id: u64)

Mark a slot as LoadState::Loading.

pub fn store<T: Asset>(&mut self, id: u64, value: T, mtime: Option<SystemTime>)

Store a successfully loaded value.

pub fn mark_failed(&mut self, id: u64, message: String)

Mark a slot as failed.

pub fn get<T: Asset>(&mut self, id: u64) -> Option<Arc<T>>

Try to read a stored value, downcasting to T.

pub fn path_for_id(&self, id: u64) -> Option<&AssetPath>

Return the AssetPath for a given raw ID.

pub fn type_id_for(&self, id: u64) -> Option<TypeId>

Return the TypeId stored in a slot.

pub fn all_ids(&self) -> impl Iterator<Item = u64> + '_

Iterate over all IDs in the registry.

pub fn len(&self) -> usize

Total number of slots (includes not-yet-loaded and failed).

pub fn is_empty(&self) -> bool

true if there are no slots.

pub fn evict(&mut self, id: u64) -> bool

Remove a slot entirely, returning whether it existed.

Trait Implementations

impl Debug for AssetRegistry

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

Formats the value using the given formatter.

impl Default for AssetRegistry

fn default() -> Self

Returns the “default value” for a type.