#[non_exhaustive]pub enum StreamingSessionStatusCode {
Show 17 variants
ActiveDirectoryDomainJoinError,
AmiValidationError,
DecryptStreamingImageError,
InitializationScriptError,
InsufficientCapacity,
InternalError,
NetworkConnectionError,
NetworkInterfaceError,
StreamingSessionCreateInProgress,
StreamingSessionDeleted,
StreamingSessionDeleteInProgress,
StreamingSessionReady,
StreamingSessionStarted,
StreamingSessionStartInProgress,
StreamingSessionStopped,
StreamingSessionStopInProgress,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against StreamingSessionStatusCode
, 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 streamingsessionstatuscode = unimplemented!();
match streamingsessionstatuscode {
StreamingSessionStatusCode::ActiveDirectoryDomainJoinError => { /* ... */ },
StreamingSessionStatusCode::AmiValidationError => { /* ... */ },
StreamingSessionStatusCode::DecryptStreamingImageError => { /* ... */ },
StreamingSessionStatusCode::InitializationScriptError => { /* ... */ },
StreamingSessionStatusCode::InsufficientCapacity => { /* ... */ },
StreamingSessionStatusCode::InternalError => { /* ... */ },
StreamingSessionStatusCode::NetworkConnectionError => { /* ... */ },
StreamingSessionStatusCode::NetworkInterfaceError => { /* ... */ },
StreamingSessionStatusCode::StreamingSessionCreateInProgress => { /* ... */ },
StreamingSessionStatusCode::StreamingSessionDeleted => { /* ... */ },
StreamingSessionStatusCode::StreamingSessionDeleteInProgress => { /* ... */ },
StreamingSessionStatusCode::StreamingSessionReady => { /* ... */ },
StreamingSessionStatusCode::StreamingSessionStarted => { /* ... */ },
StreamingSessionStatusCode::StreamingSessionStartInProgress => { /* ... */ },
StreamingSessionStatusCode::StreamingSessionStopped => { /* ... */ },
StreamingSessionStatusCode::StreamingSessionStopInProgress => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when streamingsessionstatuscode
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant StreamingSessionStatusCode::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
StreamingSessionStatusCode::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 StreamingSessionStatusCode::NewFeature
is defined.
Specifically, when streamingsessionstatuscode
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on StreamingSessionStatusCode::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
ActiveDirectoryDomainJoinError
AmiValidationError
DecryptStreamingImageError
InitializationScriptError
InsufficientCapacity
InternalError
NetworkConnectionError
NetworkInterfaceError
StreamingSessionCreateInProgress
StreamingSessionDeleted
StreamingSessionDeleteInProgress
StreamingSessionReady
StreamingSessionStarted
StreamingSessionStartInProgress
StreamingSessionStopped
StreamingSessionStopInProgress
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 StreamingSessionStatusCode
impl StreamingSessionStatusCode
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 StreamingSessionStatusCode
impl AsRef<str> for StreamingSessionStatusCode
source§impl Clone for StreamingSessionStatusCode
impl Clone for StreamingSessionStatusCode
source§fn clone(&self) -> StreamingSessionStatusCode
fn clone(&self) -> StreamingSessionStatusCode
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for StreamingSessionStatusCode
impl Debug for StreamingSessionStatusCode
source§impl From<&str> for StreamingSessionStatusCode
impl From<&str> for StreamingSessionStatusCode
source§impl FromStr for StreamingSessionStatusCode
impl FromStr for StreamingSessionStatusCode
source§impl Hash for StreamingSessionStatusCode
impl Hash for StreamingSessionStatusCode
source§impl Ord for StreamingSessionStatusCode
impl Ord for StreamingSessionStatusCode
source§fn cmp(&self, other: &StreamingSessionStatusCode) -> Ordering
fn cmp(&self, other: &StreamingSessionStatusCode) -> 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 StreamingSessionStatusCode
impl PartialEq for StreamingSessionStatusCode
source§fn eq(&self, other: &StreamingSessionStatusCode) -> bool
fn eq(&self, other: &StreamingSessionStatusCode) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for StreamingSessionStatusCode
impl PartialOrd for StreamingSessionStatusCode
source§fn partial_cmp(&self, other: &StreamingSessionStatusCode) -> Option<Ordering>
fn partial_cmp(&self, other: &StreamingSessionStatusCode) -> 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 StreamingSessionStatusCode
impl StructuralEq for StreamingSessionStatusCode
impl StructuralPartialEq for StreamingSessionStatusCode
Auto Trait Implementations§
impl RefUnwindSafe for StreamingSessionStatusCode
impl Send for StreamingSessionStatusCode
impl Sync for StreamingSessionStatusCode
impl Unpin for StreamingSessionStatusCode
impl UnwindSafe for StreamingSessionStatusCode
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
§impl<Q, K> Comparable<K> for Q
impl<Q, K> Comparable<K> for Q
§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.