pub struct Extensions { /* private fields */ }Expand description
A type map of protocol extensions.
Extensions can be used by Request and Response to store
extra data derived from the underlying protocol.
Implementations§
source§impl Extensions
impl Extensions
sourcepub fn insert<T: Send + Sync + 'static>(&mut self, val: T) -> Option<T>
pub fn insert<T: Send + Sync + 'static>(&mut self, val: T) -> Option<T>
Insert a type into this Extensions.
If a extension of this type already existed, it will be returned.
sourcepub fn get<T: Send + Sync + 'static>(&self) -> Option<&T>
pub fn get<T: Send + Sync + 'static>(&self) -> Option<&T>
Get a reference to a type previously inserted on this Extensions.
sourcepub fn get_mut<T: Send + Sync + 'static>(&mut self) -> Option<&mut T>
pub fn get_mut<T: Send + Sync + 'static>(&mut self) -> Option<&mut T>
Get a mutable reference to a type previously inserted on this Extensions.
sourcepub fn get_or_default_mut<T: Default + Send + Sync + 'static>(
&mut self,
) -> &mut T
pub fn get_or_default_mut<T: Default + Send + Sync + 'static>( &mut self, ) -> &mut T
Get a mutable reference to a type or insert and return the value if it does not exist
sourcepub fn contains_key<T: Send + Sync + 'static>(&self) -> bool
pub fn contains_key<T: Send + Sync + 'static>(&self) -> bool
Returns true type has been stored in Extensions.
Trait Implementations§
source§impl Debug for Extensions
impl Debug for Extensions
source§impl Default for Extensions
impl Default for Extensions
source§fn default() -> Extensions
fn default() -> Extensions
Auto Trait Implementations§
impl Freeze for Extensions
impl !RefUnwindSafe for Extensions
impl Send for Extensions
impl Sync for Extensions
impl Unpin for Extensions
impl !UnwindSafe for Extensions
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