#[non_exhaustive]pub enum TranscribePartialResultsStability {
High,
Low,
Medium,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against TranscribePartialResultsStability
, 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 transcribepartialresultsstability = unimplemented!();
match transcribepartialresultsstability {
TranscribePartialResultsStability::High => { /* ... */ },
TranscribePartialResultsStability::Low => { /* ... */ },
TranscribePartialResultsStability::Medium => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when transcribepartialresultsstability
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant TranscribePartialResultsStability::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
TranscribePartialResultsStability::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 TranscribePartialResultsStability::NewFeature
is defined.
Specifically, when transcribepartialresultsstability
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on TranscribePartialResultsStability::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
High
Low
Medium
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 TranscribePartialResultsStability
impl TranscribePartialResultsStability
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 TranscribePartialResultsStability
impl AsRef<str> for TranscribePartialResultsStability
source§impl Clone for TranscribePartialResultsStability
impl Clone for TranscribePartialResultsStability
source§fn clone(&self) -> TranscribePartialResultsStability
fn clone(&self) -> TranscribePartialResultsStability
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 TranscribePartialResultsStability
impl From<&str> for TranscribePartialResultsStability
source§impl Ord for TranscribePartialResultsStability
impl Ord for TranscribePartialResultsStability
source§fn cmp(&self, other: &TranscribePartialResultsStability) -> Ordering
fn cmp(&self, other: &TranscribePartialResultsStability) -> 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 TranscribePartialResultsStability
impl PartialEq for TranscribePartialResultsStability
source§fn eq(&self, other: &TranscribePartialResultsStability) -> bool
fn eq(&self, other: &TranscribePartialResultsStability) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for TranscribePartialResultsStability
impl PartialOrd for TranscribePartialResultsStability
source§fn partial_cmp(
&self,
other: &TranscribePartialResultsStability
) -> Option<Ordering>
fn partial_cmp( &self, other: &TranscribePartialResultsStability ) -> 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 TranscribePartialResultsStability
impl StructuralPartialEq for TranscribePartialResultsStability
Auto Trait Implementations§
impl Freeze for TranscribePartialResultsStability
impl RefUnwindSafe for TranscribePartialResultsStability
impl Send for TranscribePartialResultsStability
impl Sync for TranscribePartialResultsStability
impl Unpin for TranscribePartialResultsStability
impl UnwindSafe for TranscribePartialResultsStability
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.