Struct ExtensionCaches 

pub struct ExtensionCaches { /* private fields */ }

Type-erased cache storage for extensions.

Keys are namespaced by extension config_key() to prevent collisions between extensions that happen to use the same cache key string. All public methods accept a namespace parameter (the extension’s config_key()) which is prefixed onto the raw key internally.

Implementations

impl ExtensionCaches

pub fn new() -> Self

pub fn get<T: 'static>(&self, namespace: &str, key: &str) -> Option<&T>

pub fn get_mut<T: 'static>( &mut self, namespace: &str, key: &str, ) -> Option<&mut T>

pub fn get_or_insert<T: Send + Sync + 'static>( &mut self, namespace: &str, key: &str, default: impl FnOnce() -> T, ) -> &mut T

pub fn insert<T: Send + Sync + 'static>( &mut self, namespace: &str, key: &str, value: T, )

pub fn remove(&mut self, namespace: &str, key: &str) -> bool

pub fn contains(&self, namespace: &str, key: &str) -> bool

pub fn remove_namespace(&mut self, namespace: &str)

Remove all entries for a given namespace prefix.

pub fn clear(&mut self)

Trait Implementations

impl Default for ExtensionCaches

fn default() -> Self

Returns the “default value” for a type.