#[non_exhaustive]pub enum InferenceComponentStatus {
Creating,
Deleting,
Failed,
InService,
Updating,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against InferenceComponentStatus
, 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 inferencecomponentstatus = unimplemented!();
match inferencecomponentstatus {
InferenceComponentStatus::Creating => { /* ... */ },
InferenceComponentStatus::Deleting => { /* ... */ },
InferenceComponentStatus::Failed => { /* ... */ },
InferenceComponentStatus::InService => { /* ... */ },
InferenceComponentStatus::Updating => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when inferencecomponentstatus
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant InferenceComponentStatus::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
InferenceComponentStatus::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 InferenceComponentStatus::NewFeature
is defined.
Specifically, when inferencecomponentstatus
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on InferenceComponentStatus::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
Creating
Deleting
Failed
InService
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 InferenceComponentStatus
impl InferenceComponentStatus
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 InferenceComponentStatus
impl AsRef<str> for InferenceComponentStatus
source§impl Clone for InferenceComponentStatus
impl Clone for InferenceComponentStatus
source§fn clone(&self) -> InferenceComponentStatus
fn clone(&self) -> InferenceComponentStatus
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for InferenceComponentStatus
impl Debug for InferenceComponentStatus
source§impl Display for InferenceComponentStatus
impl Display for InferenceComponentStatus
source§impl From<&str> for InferenceComponentStatus
impl From<&str> for InferenceComponentStatus
source§impl FromStr for InferenceComponentStatus
impl FromStr for InferenceComponentStatus
source§impl Hash for InferenceComponentStatus
impl Hash for InferenceComponentStatus
source§impl Ord for InferenceComponentStatus
impl Ord for InferenceComponentStatus
source§fn cmp(&self, other: &InferenceComponentStatus) -> Ordering
fn cmp(&self, other: &InferenceComponentStatus) -> 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 InferenceComponentStatus
impl PartialEq for InferenceComponentStatus
source§impl PartialOrd for InferenceComponentStatus
impl PartialOrd for InferenceComponentStatus
impl Eq for InferenceComponentStatus
impl StructuralPartialEq for InferenceComponentStatus
Auto Trait Implementations§
impl Freeze for InferenceComponentStatus
impl RefUnwindSafe for InferenceComponentStatus
impl Send for InferenceComponentStatus
impl Sync for InferenceComponentStatus
impl Unpin for InferenceComponentStatus
impl UnwindSafe for InferenceComponentStatus
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<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§default unsafe fn clone_to_uninit(&self, dst: *mut T)
default unsafe fn clone_to_uninit(&self, dst: *mut T)
clone_to_uninit
)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