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