#[non_exhaustive]pub enum MediaPipelineSinkType {
S3Bucket,
Unknown(UnknownVariantValue),
}Expand description
When writing a match expression against MediaPipelineSinkType, 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 mediapipelinesinktype = unimplemented!();
match mediapipelinesinktype {
MediaPipelineSinkType::S3Bucket => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when mediapipelinesinktype represents
NewFeature, the execution path will lead to the second last match arm,
even though the enum does not contain a variant MediaPipelineSinkType::NewFeature
in the current version of SDK. The reason is that the variable other,
created by the @ operator, is bound to
MediaPipelineSinkType::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 MediaPipelineSinkType::NewFeature is defined.
Specifically, when mediapipelinesinktype represents NewFeature,
the execution path will hit the second last match arm as before by virtue of
calling as_str on MediaPipelineSinkType::NewFeature also yielding "NewFeature".
Explicitly matching on the Unknown variant should
be avoided for two reasons:
- The inner data
UnknownVariantValueis 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
S3Bucket
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 MediaPipelineSinkType
impl MediaPipelineSinkType
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 MediaPipelineSinkType
impl AsRef<str> for MediaPipelineSinkType
source§impl Clone for MediaPipelineSinkType
impl Clone for MediaPipelineSinkType
source§fn clone(&self) -> MediaPipelineSinkType
fn clone(&self) -> MediaPipelineSinkType
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source. Read moresource§impl Debug for MediaPipelineSinkType
impl Debug for MediaPipelineSinkType
source§impl Display for MediaPipelineSinkType
impl Display for MediaPipelineSinkType
source§impl From<&str> for MediaPipelineSinkType
impl From<&str> for MediaPipelineSinkType
source§impl FromStr for MediaPipelineSinkType
impl FromStr for MediaPipelineSinkType
source§impl Hash for MediaPipelineSinkType
impl Hash for MediaPipelineSinkType
source§impl Ord for MediaPipelineSinkType
impl Ord for MediaPipelineSinkType
source§fn cmp(&self, other: &MediaPipelineSinkType) -> Ordering
fn cmp(&self, other: &MediaPipelineSinkType) -> 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 MediaPipelineSinkType
impl PartialEq for MediaPipelineSinkType
source§impl PartialOrd for MediaPipelineSinkType
impl PartialOrd for MediaPipelineSinkType
impl Eq for MediaPipelineSinkType
impl StructuralPartialEq for MediaPipelineSinkType
Auto Trait Implementations§
impl Freeze for MediaPipelineSinkType
impl RefUnwindSafe for MediaPipelineSinkType
impl Send for MediaPipelineSinkType
impl Sync for MediaPipelineSinkType
impl Unpin for MediaPipelineSinkType
impl UnwindSafe for MediaPipelineSinkType
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§unsafe fn clone_to_uninit(&self, dst: *mut T)
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