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