#[non_exhaustive]
pub enum ObservabilityConfigurationStatus {
Active,
Inactive,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against ObservabilityConfigurationStatus
, 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 observabilityconfigurationstatus = unimplemented!();
match observabilityconfigurationstatus {
ObservabilityConfigurationStatus::Active => { /* ... */ },
ObservabilityConfigurationStatus::Inactive => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when observabilityconfigurationstatus
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant ObservabilityConfigurationStatus::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
ObservabilityConfigurationStatus::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 ObservabilityConfigurationStatus::NewFeature
is defined.
Specifically, when observabilityconfigurationstatus
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on ObservabilityConfigurationStatus::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
Active
Inactive
Unknown(UnknownVariantValue)
Unknown
contains new variants that have been added since this code was generated.
Implementations§
Trait Implementations§
source§impl AsRef<str> for ObservabilityConfigurationStatus
impl AsRef<str> for ObservabilityConfigurationStatus
source§impl Clone for ObservabilityConfigurationStatus
impl Clone for ObservabilityConfigurationStatus
source§fn clone(&self) -> ObservabilityConfigurationStatus
fn clone(&self) -> ObservabilityConfigurationStatus
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl From<&str> for ObservabilityConfigurationStatus
impl From<&str> for ObservabilityConfigurationStatus
source§impl Ord for ObservabilityConfigurationStatus
impl Ord for ObservabilityConfigurationStatus
source§fn cmp(&self, other: &ObservabilityConfigurationStatus) -> Ordering
fn cmp(&self, other: &ObservabilityConfigurationStatus) -> Ordering
1.21.0 · source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
source§impl PartialEq<ObservabilityConfigurationStatus> for ObservabilityConfigurationStatus
impl PartialEq<ObservabilityConfigurationStatus> for ObservabilityConfigurationStatus
source§fn eq(&self, other: &ObservabilityConfigurationStatus) -> bool
fn eq(&self, other: &ObservabilityConfigurationStatus) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd<ObservabilityConfigurationStatus> for ObservabilityConfigurationStatus
impl PartialOrd<ObservabilityConfigurationStatus> for ObservabilityConfigurationStatus
source§fn partial_cmp(
&self,
other: &ObservabilityConfigurationStatus
) -> Option<Ordering>
fn partial_cmp(
&self,
other: &ObservabilityConfigurationStatus
) -> 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 ObservabilityConfigurationStatus
impl StructuralEq for ObservabilityConfigurationStatus
impl StructuralPartialEq for ObservabilityConfigurationStatus
Auto Trait Implementations§
impl RefUnwindSafe for ObservabilityConfigurationStatus
impl Send for ObservabilityConfigurationStatus
impl Sync for ObservabilityConfigurationStatus
impl Unpin for ObservabilityConfigurationStatus
impl UnwindSafe for ObservabilityConfigurationStatus
Blanket Implementations§
source§impl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
impl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.