pub enum KeyAndValueRef<'a> {
Ascii(&'a MetadataKey<Ascii>, &'a MetadataValue<Ascii>),
Binary(&'a MetadataKey<Binary>, &'a MetadataValue<Binary>),
}
Expand description
Reference to a key and an associated value in a MetadataMap
. It can point
to either an ascii or a binary (“*-bin”) key.
Variants§
Ascii(&'a MetadataKey<Ascii>, &'a MetadataValue<Ascii>)
An ascii metadata key and value.
Binary(&'a MetadataKey<Binary>, &'a MetadataValue<Binary>)
A binary metadata key and value.
Trait Implementations§
Auto Trait Implementations§
impl<'a> Freeze for KeyAndValueRef<'a>
impl<'a> RefUnwindSafe for KeyAndValueRef<'a>
impl<'a> Send for KeyAndValueRef<'a>
impl<'a> Sync for KeyAndValueRef<'a>
impl<'a> Unpin for KeyAndValueRef<'a>
impl<'a> UnwindSafe for KeyAndValueRef<'a>
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> Instrument for T
impl<T> Instrument for T
Source§fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
Source§fn in_current_span(self) -> Instrumented<Self> ⓘ
fn in_current_span(self) -> Instrumented<Self> ⓘ
Source§impl<T> IntoRequest<T> for T
impl<T> IntoRequest<T> for T
Source§fn into_request(self) -> Request<T>
fn into_request(self) -> Request<T>
Wrap the input message
T
in a tonic::Request