#[non_exhaustive]pub enum RealtimeEndpointStatus {
Failed,
None,
Ready,
Updating,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against RealtimeEndpointStatus
, it is important to ensure
your code is forward-compatible. That is, if a match arm handles a case for a
feature that is supported by the service but has not been represented as an enum
variant in a current version of SDK, your code should continue to work when you
upgrade SDK to a future version in which the enum does include a variant for that
feature.
Here is an example of how you can make a match expression forward-compatible:
# let realtimeendpointstatus = unimplemented!();
match realtimeendpointstatus {
RealtimeEndpointStatus::Failed => { /* ... */ },
RealtimeEndpointStatus::None => { /* ... */ },
RealtimeEndpointStatus::Ready => { /* ... */ },
RealtimeEndpointStatus::Updating => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when realtimeendpointstatus
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant RealtimeEndpointStatus::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
RealtimeEndpointStatus::Unknown(UnknownVariantValue("NewFeature".to_owned()))
and calling as_str
on it yields "NewFeature"
.
This match expression is forward-compatible when executed with a newer
version of SDK where the variant RealtimeEndpointStatus::NewFeature
is defined.
Specifically, when realtimeendpointstatus
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on RealtimeEndpointStatus::NewFeature
also yielding "NewFeature"
.
Explicitly matching on the Unknown
variant should
be avoided for two reasons:
- The inner data
UnknownVariantValue
is opaque, and no further information can be extracted. - It might inadvertently shadow other intended match arms.
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
Failed
None
Ready
Updating
Unknown(UnknownVariantValue)
Unknown
. See the docs on this enum for the correct way to handle unknown variants.Unknown
contains new variants that have been added since this code was generated.
Implementations§
source§impl RealtimeEndpointStatus
impl RealtimeEndpointStatus
sourcepub fn try_parse(value: &str) -> Result<Self, UnknownVariantError>
pub fn try_parse(value: &str) -> Result<Self, UnknownVariantError>
Parses the enum value while disallowing unknown variants.
Unknown variants will result in an error.
Trait Implementations§
source§impl AsRef<str> for RealtimeEndpointStatus
impl AsRef<str> for RealtimeEndpointStatus
source§impl Clone for RealtimeEndpointStatus
impl Clone for RealtimeEndpointStatus
source§fn clone(&self) -> RealtimeEndpointStatus
fn clone(&self) -> RealtimeEndpointStatus
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for RealtimeEndpointStatus
impl Debug for RealtimeEndpointStatus
source§impl Display for RealtimeEndpointStatus
impl Display for RealtimeEndpointStatus
source§impl From<&str> for RealtimeEndpointStatus
impl From<&str> for RealtimeEndpointStatus
source§impl FromStr for RealtimeEndpointStatus
impl FromStr for RealtimeEndpointStatus
source§impl Hash for RealtimeEndpointStatus
impl Hash for RealtimeEndpointStatus
source§impl Ord for RealtimeEndpointStatus
impl Ord for RealtimeEndpointStatus
source§fn cmp(&self, other: &RealtimeEndpointStatus) -> Ordering
fn cmp(&self, other: &RealtimeEndpointStatus) -> Ordering
1.21.0 · source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
source§impl PartialEq for RealtimeEndpointStatus
impl PartialEq for RealtimeEndpointStatus
source§fn eq(&self, other: &RealtimeEndpointStatus) -> bool
fn eq(&self, other: &RealtimeEndpointStatus) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for RealtimeEndpointStatus
impl PartialOrd for RealtimeEndpointStatus
source§fn partial_cmp(&self, other: &RealtimeEndpointStatus) -> Option<Ordering>
fn partial_cmp(&self, other: &RealtimeEndpointStatus) -> Option<Ordering>
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
self
and other
) and is used by the <=
operator. Read moreimpl Eq for RealtimeEndpointStatus
impl StructuralPartialEq for RealtimeEndpointStatus
Auto Trait Implementations§
impl Freeze for RealtimeEndpointStatus
impl RefUnwindSafe for RealtimeEndpointStatus
impl Send for RealtimeEndpointStatus
impl Sync for RealtimeEndpointStatus
impl Unpin for RealtimeEndpointStatus
impl UnwindSafe for RealtimeEndpointStatus
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
source§impl<Q, K> Comparable<K> for Q
impl<Q, K> Comparable<K> for Q
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.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> IntoEither for T
impl<T> IntoEither for T
source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read more