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