Struct ResourceManager 

pub struct ResourceManager { /* private fields */ }

Rust-native resource registry and resource values. Simple resource registry with safe add, replace, remove, and rename operations.

Implementations

impl ResourceManager

pub fn new() -> Self

Creates an empty registry.

pub fn len(&self) -> usize

Returns the number of registered resources.

pub fn is_empty(&self) -> bool

Returns true when the registry is empty.

pub fn get(&self, id: impl AsRef<str>) -> Option<&Resource>

Returns a resource by id.

pub fn get_cloned(&self, id: impl AsRef<str>) -> Option<Resource>

Returns a cloned resource by id.

pub fn get_f32(&self, id: impl AsRef<str>) -> Option<&[f32]>

Returns a shared f32 slice by id.

pub fn get_f64(&self, id: impl AsRef<str>) -> Option<&[f64]>

Returns a shared f64 slice by id.

pub fn get_bytes(&self, id: impl AsRef<str>) -> Option<&[u8]>

Returns raw bytes by id.

pub fn get_text(&self, id: impl AsRef<str>) -> Option<&str>

Returns text by id.

pub fn get_custom<T>(&self, id: impl AsRef<str>) -> Option<Arc<T>>

where T: Any + Send + Sync,

Attempts to downcast a custom resource to a concrete Rust type.

pub fn require_f32(&self, id: impl AsRef<str>) -> Result<&[f32]>

Returns a shared f32 slice or a type mismatch error.

pub fn contains(&self, id: impl AsRef<str>) -> bool

Returns true if a resource with the given id exists.

pub fn insert( &mut self, id: impl AsRef<str>, resource: Resource, ) -> Result<Option<Resource>>

Inserts or replaces a resource.

pub fn add(&mut self, id: impl AsRef<str>, resource: Resource) -> Result<()>

Adds a resource if the id is unused.

pub fn replace( &mut self, id: impl AsRef<str>, resource: Resource, ) -> Result<Resource>

Replaces an existing resource.

pub fn remove(&mut self, id: impl AsRef<str>) -> Result<Resource>

Removes a resource from the registry.

pub fn rename( &mut self, from: impl AsRef<str>, to: impl AsRef<str>, ) -> Result<()>

Renames a resource identifier without changing the underlying value.

pub fn clear(&mut self)

Clears the registry.

pub fn iter(&self) -> impl Iterator<Item = (&ResourceId, &Resource)>

Returns an iterator over all registered ids and resources.

pub fn snapshot(&self) -> Vec<(ResourceId, Resource)>

Returns a cloned snapshot of all registered resources.

pub fn prune_except<I, S>(&mut self, keep: I) -> Vec<(ResourceId, Resource)>

where I: IntoIterator<Item = S>, S: AsRef<str>,

Removes every resource whose id is not listed in keep.

Trait Implementations

impl Clone for ResourceManager

fn clone(&self) -> ResourceManager

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ResourceManager

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

Formats the value using the given formatter.

impl Default for ResourceManager

fn default() -> ResourceManager

Returns the “default value” for a type.