Enum 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

NoCache	Corresponds to the no-cache value.
Ext	Every value other than no-cache.

Trait Implementations

impl Header for Pragma

fn header_name() -> &'static str

fn parse_header(raw: &[Vec<u8>]) -> Result<Pragma>

impl HeaderFormat for Pragma

fn fmt_header(&self, f: &mut Formatter) -> Result

Derived Implementations

impl Debug for Pragma

fn fmt(&self, arg_0: &mut Formatter) -> Result

impl PartialEq for Pragma

fn eq(&self, arg_0: &Pragma) -> bool

fn ne(&self, arg_0: &Pragma) -> bool

impl Clone for Pragma

fn clone(&self) -> Pragma

fn clone_from(&mut self, source: &Self)