Struct actix_http::Extensions [−][src]
A type map for request extensions.
All entries into this map must be owned types (or static references).
Implementations
impl Extensions
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pub fn new() -> Extensions
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Creates an empty Extensions
.
pub fn insert<T: 'static>(&mut self, val: T) -> Option<T>
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Insert an item into the map.
If an item of this type was already stored, it will be replaced and returned.
let mut map = Extensions::new(); assert_eq!(map.insert(""), None); assert_eq!(map.insert(1u32), None); assert_eq!(map.insert(2u32), Some(1u32)); assert_eq!(*map.get::<u32>().unwrap(), 2u32);
pub fn contains<T: 'static>(&self) -> bool
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Check if map contains an item of a given type.
let mut map = Extensions::new(); assert!(!map.contains::<u32>()); assert_eq!(map.insert(1u32), None); assert!(map.contains::<u32>());
pub fn get<T: 'static>(&self) -> Option<&T>
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Get a reference to an item of a given type.
let mut map = Extensions::new(); map.insert(1u32); assert_eq!(map.get::<u32>(), Some(&1u32));
pub fn get_mut<T: 'static>(&mut self) -> Option<&mut T>
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Get a mutable reference to an item of a given type.
let mut map = Extensions::new(); map.insert(1u32); assert_eq!(map.get_mut::<u32>(), Some(&mut 1u32));
pub fn remove<T: 'static>(&mut self) -> Option<T>
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Remove an item from the map of a given type.
If an item of this type was already stored, it will be returned.
let mut map = Extensions::new(); map.insert(1u32); assert_eq!(map.get::<u32>(), Some(&1u32)); assert_eq!(map.remove::<u32>(), Some(1u32)); assert!(!map.contains::<u32>());
pub fn clear(&mut self)
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Clear the Extensions
of all inserted extensions.
let mut map = Extensions::new(); map.insert(1u32); assert!(map.contains::<u32>()); map.clear(); assert!(!map.contains::<u32>());
pub fn extend(&mut self, other: Extensions)
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Extends self with the items from another Extensions
.
Trait Implementations
Auto Trait Implementations
impl !RefUnwindSafe for Extensions
impl !Send for Extensions
impl !Sync for Extensions
impl Unpin for Extensions
impl !UnwindSafe for Extensions
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T> Instrument for T
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pub fn instrument(self, span: Span) -> Instrumented<Self>
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pub fn in_current_span(self) -> Instrumented<Self>
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> Same<T> for T
type Output = T
Should always be Self
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<V, T> VZip<V> for T where
V: MultiLane<T>,
V: MultiLane<T>,