[][src]Enum rocket::http::hyper::header::Pragma

pub enum Pragma {
    NoCache,
    Ext(String),
}

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.

Every value other than no-cache.

Trait Implementations

impl From<Pragma> for Header<'static>

impl PartialEq<Pragma> for Pragma
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impl Clone for Pragma
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Performs copy-assignment from source. Read more

impl Display for Pragma
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impl Debug for Pragma
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impl HeaderFormat for Pragma
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impl Header for Pragma
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Auto Trait Implementations

impl Send for Pragma

impl Sync for Pragma

Blanket Implementations

impl<T> From for T
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impl<T> ToString for T where
    T: Display + ?Sized
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impl<T, U> Into for T where
    U: From<T>, 
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impl<T> ToOwned for T where
    T: Clone
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impl<T, U> TryFrom for T where
    T: From<U>, 
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🔬 This is a nightly-only experimental API. (try_from)

The type returned in the event of a conversion error.

impl<T> Borrow for T where
    T: ?Sized
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impl<T> Any for T where
    T: 'static + ?Sized
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impl<T, U> TryInto for T where
    U: TryFrom<T>, 
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🔬 This is a nightly-only experimental API. (try_from)

The type returned in the event of a conversion error.

impl<T> BorrowMut for T where
    T: ?Sized
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impl<T> HeaderClone for T where
    T: Sealed, 
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impl<T> Typeable for T where
    T: Any

Get the TypeId of this object.

impl<T> IntoCollection for T

impl<T, I> AsResult for T where
    I: Input,