Enum saphir::header::IfNoneMatch
source · Expand description
If-None-Match
header, defined in
RFC7232
The If-None-Match
header field makes the request method conditional
on a recipient cache or origin server either not having any current
representation of the target resource, when the field-value is “*”,
or having a selected representation with an entity-tag that does not
match any of those listed in the field-value.
A recipient MUST use the weak comparison function when comparing entity-tags for If-None-Match (Section 2.3.2), since weak entity-tags can be used for cache validation even if there have been changes to the representation data.
ABNF
If-None-Match = "*" / 1#entity-tag
Example values
"xyzzy"
W/"xyzzy"
"xyzzy", "r2d2xxxx", "c3piozzzz"
W/"xyzzy", W/"r2d2xxxx", W/"c3piozzzz"
*
Examples
use hyperx::header::{Headers, IfNoneMatch};
let mut headers = Headers::new();
headers.set(IfNoneMatch::Any);
use hyperx::header::{Headers, IfNoneMatch, EntityTag};
let mut headers = Headers::new();
headers.set(
IfNoneMatch::Items(vec![
EntityTag::new(false, "xyzzy".to_owned()),
EntityTag::new(false, "foobar".to_owned()),
EntityTag::new(false, "bazquux".to_owned()),
])
);
Variants
Any
Any value is a match
Items(Vec<EntityTag, Global>)
Only the listed items are a match
Trait Implementations
sourceimpl Clone for IfNoneMatch
impl Clone for IfNoneMatch
sourcefn clone(&self) -> IfNoneMatch
fn clone(&self) -> IfNoneMatch
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresourceimpl Debug for IfNoneMatch
impl Debug for IfNoneMatch
sourceimpl Display for IfNoneMatch
impl Display for IfNoneMatch
sourceimpl Header for IfNoneMatch
impl Header for IfNoneMatch
sourcefn header_name() -> &'static str
fn header_name() -> &'static str
Returns the name of the header field this belongs to. Read more
sourcefn parse_header(raw: &Raw) -> Result<IfNoneMatch, Error>
fn parse_header(raw: &Raw) -> Result<IfNoneMatch, Error>
Parse a header from a raw stream of bytes. Read more
sourceimpl PartialEq<IfNoneMatch> for IfNoneMatch
impl PartialEq<IfNoneMatch> for IfNoneMatch
sourcefn eq(&self, other: &IfNoneMatch) -> bool
fn eq(&self, other: &IfNoneMatch) -> bool
impl StructuralPartialEq for IfNoneMatch
Auto Trait Implementations
impl RefUnwindSafe for IfNoneMatch
impl Send for IfNoneMatch
impl Sync for IfNoneMatch
impl Unpin for IfNoneMatch
impl UnwindSafe for IfNoneMatch
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more