[−][src]Enum rocket::http::hyper::header::IfMatch
If-Match
header, defined in
RFC7232
The If-Match
header field makes the request method conditional on
the recipient origin server either having at least one current
representation of the target resource, when the field-value is "*",
or having a current representation of the target resource that has an
entity-tag matching a member of the list of entity-tags provided in
the field-value.
An origin server MUST use the strong comparison function when
comparing entity-tags for If-Match
, since the client
intends this precondition to prevent the method from being applied if
there have been any changes to the representation data.
ABNF
If-Match = "*" / 1#entity-tag
Example values
"xyzzy"
- "xyzzy", "r2d2xxxx", "c3piozzzz"
Examples
use hyper::header::{Headers, IfMatch}; let mut headers = Headers::new(); headers.set(IfMatch::Any);
use hyper::header::{Headers, IfMatch, EntityTag}; let mut headers = Headers::new(); headers.set( IfMatch::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>)
Only the listed items are a match
Trait Implementations
impl From<IfMatch> for Header<'static>
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impl PartialEq<IfMatch> for IfMatch
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impl Display for IfMatch
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impl Clone for IfMatch
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fn clone(&self) -> IfMatch
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fn clone_from(&mut self, source: &Self)
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Performs copy-assignment from source
. Read more
impl Debug for IfMatch
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impl HeaderFormat for IfMatch
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impl Header for IfMatch
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Auto Trait Implementations
Blanket Implementations
impl<T, U> Into for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
impl<T> ToString for T where
T: Display + ?Sized,
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T: Display + ?Sized,
impl<T> From for T
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impl<T, U> TryFrom 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.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T> Borrow for T where
T: ?Sized,
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T: ?Sized,
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> BorrowMut for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T, U> TryInto 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.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> HeaderClone for T where
T: Sealed,
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T: Sealed,
impl<T> Typeable for T where
T: Any,
T: Any,
impl<T> IntoCollection for T
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ⓘImportant traits for SmallVec<A>fn into_collection<A>(self) -> SmallVec<A> where
A: Array<Item = T>,
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A: Array<Item = T>,
ⓘImportant traits for SmallVec<A>fn mapped<U, F, A>(self, f: F) -> SmallVec<A> where
A: Array<Item = U>,
F: FnMut(T) -> U,
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A: Array<Item = U>,
F: FnMut(T) -> U,
impl<T, I> AsResult for T where
I: Input,
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I: Input,