#[non_exhaustive]
pub enum LoggingConfigurationStatusCode {
Active,
Creating,
CreationFailed,
Deleting,
UpdateFailed,
Updating,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against LoggingConfigurationStatusCode
, 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 loggingconfigurationstatuscode = unimplemented!();
match loggingconfigurationstatuscode {
LoggingConfigurationStatusCode::Active => { /* ... */ },
LoggingConfigurationStatusCode::Creating => { /* ... */ },
LoggingConfigurationStatusCode::CreationFailed => { /* ... */ },
LoggingConfigurationStatusCode::Deleting => { /* ... */ },
LoggingConfigurationStatusCode::UpdateFailed => { /* ... */ },
LoggingConfigurationStatusCode::Updating => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when loggingconfigurationstatuscode
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant LoggingConfigurationStatusCode::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
LoggingConfigurationStatusCode::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 LoggingConfigurationStatusCode::NewFeature
is defined.
Specifically, when loggingconfigurationstatuscode
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on LoggingConfigurationStatusCode::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. State of a logging configuration.
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
Active
Logging configuration has been created/updated. Update/Deletion is disallowed until logging configuration is ACTIVE and workspace status is ACTIVE.
Creating
Logging configuration is being created. Update/Deletion is disallowed until logging configuration is ACTIVE and workspace status is ACTIVE.
CreationFailed
Logging configuration creation failed.
Deleting
Logging configuration is being deleting. Update/Deletion is disallowed until logging configuration is ACTIVE and workspace status is ACTIVE.
UpdateFailed
Logging configuration update failed.
Updating
Logging configuration is being updated. Update/Deletion is disallowed until logging configuration is ACTIVE and workspace status is ACTIVE.
Unknown(UnknownVariantValue)
Unknown
contains new variants that have been added since this code was generated.
Implementations§
Trait Implementations§
source§impl AsRef<str> for LoggingConfigurationStatusCode
impl AsRef<str> for LoggingConfigurationStatusCode
source§impl Clone for LoggingConfigurationStatusCode
impl Clone for LoggingConfigurationStatusCode
source§fn clone(&self) -> LoggingConfigurationStatusCode
fn clone(&self) -> LoggingConfigurationStatusCode
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 LoggingConfigurationStatusCode
impl From<&str> for LoggingConfigurationStatusCode
source§impl Ord for LoggingConfigurationStatusCode
impl Ord for LoggingConfigurationStatusCode
source§fn cmp(&self, other: &LoggingConfigurationStatusCode) -> Ordering
fn cmp(&self, other: &LoggingConfigurationStatusCode) -> Ordering
1.21.0 · source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
source§impl PartialEq<LoggingConfigurationStatusCode> for LoggingConfigurationStatusCode
impl PartialEq<LoggingConfigurationStatusCode> for LoggingConfigurationStatusCode
source§fn eq(&self, other: &LoggingConfigurationStatusCode) -> bool
fn eq(&self, other: &LoggingConfigurationStatusCode) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd<LoggingConfigurationStatusCode> for LoggingConfigurationStatusCode
impl PartialOrd<LoggingConfigurationStatusCode> for LoggingConfigurationStatusCode
source§fn partial_cmp(&self, other: &LoggingConfigurationStatusCode) -> Option<Ordering>
fn partial_cmp(&self, other: &LoggingConfigurationStatusCode) -> 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 LoggingConfigurationStatusCode
impl StructuralEq for LoggingConfigurationStatusCode
impl StructuralPartialEq for LoggingConfigurationStatusCode
Auto Trait Implementations§
impl RefUnwindSafe for LoggingConfigurationStatusCode
impl Send for LoggingConfigurationStatusCode
impl Sync for LoggingConfigurationStatusCode
impl Unpin for LoggingConfigurationStatusCode
impl UnwindSafe for LoggingConfigurationStatusCode
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.