pub struct IfMatch(_);
Expand description
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 headers::IfMatch;
let if_match = IfMatch::any();
Implementations
Trait Implementations
sourceimpl Header for IfMatch
impl Header for IfMatch
sourcefn name() -> &'static HeaderName
fn name() -> &'static HeaderName
The name of this header.
impl StructuralPartialEq for IfMatch
Auto Trait Implementations
impl RefUnwindSafe for IfMatch
impl Send for IfMatch
impl Sync for IfMatch
impl Unpin for IfMatch
impl UnwindSafe for IfMatch
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcepub fn borrow_mut(&mut self) -> &mut T
pub fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> ToOwned for T where
T: Clone,
impl<T> ToOwned for T where
T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcepub fn to_owned(&self) -> T
pub fn to_owned(&self) -> T
Creates owned data from borrowed data, usually by cloning. Read more
sourcepub fn clone_into(&self, target: &mut T)
pub fn clone_into(&self, target: &mut T)
toowned_clone_into
)Uses borrowed data to replace owned data, usually by cloning. Read more