Enum rocket_http::hyper::header::Pragma [−][src]
pub enum Pragma { NoCache, Ext(String), }
Expand description
The Pragma
header defined by HTTP/1.0.
The “Pragma” header field allows backwards compatibility with HTTP/1.0 caches, so that clients can specify a “no-cache” request that they will understand (as Cache-Control was not defined until HTTP/1.1). When the Cache-Control header field is also present and understood in a request, Pragma is ignored. In HTTP/1.0, Pragma was defined as an extensible field for implementation-specified directives for recipients. This specification deprecates such extensions to improve interoperability.
Spec: https://tools.ietf.org/html/rfc7234#section-5.4
Examples
use hyper::header::{Headers, Pragma}; let mut headers = Headers::new(); headers.set(Pragma::NoCache);
use hyper::header::{Headers, Pragma}; let mut headers = Headers::new(); headers.set(Pragma::Ext("foobar".to_owned()));
Variants
Corresponds to the no-cache
value.
Ext(String)
Every value other than no-cache
.
Trait Implementations
impl HeaderFormat for Pragma
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impl HeaderFormat for Pragma
[src]impl StructuralPartialEq for Pragma
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Auto Trait Implementations
impl RefUnwindSafe for Pragma
impl Send for Pragma
impl Sync for Pragma
impl Unpin for Pragma
impl UnwindSafe for Pragma
Blanket Implementations
impl<T> BorrowMut<T> for T where
T: ?Sized,
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impl<T> BorrowMut<T> for T where
T: ?Sized,
[src]pub fn borrow_mut(&mut self) -> &mut T
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pub fn borrow_mut(&mut self) -> &mut T
[src]Mutably borrows from an owned value. Read more
impl<T> IntoCollection<T> for T
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impl<T> IntoCollection<T> for T
[src]impl<T> ToOwned for T where
T: Clone,
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impl<T> ToOwned for T where
T: Clone,
[src]type Owned = T
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn to_owned(&self) -> T
[src]Creates owned data from borrowed data, usually by cloning. Read more
pub fn clone_into(&self, target: &mut T)
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pub fn clone_into(&self, target: &mut T)
[src]🔬 This is a nightly-only experimental API. (toowned_clone_into
)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more
impl<T> HeaderClone for T where
T: Sealed,
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T: Sealed,