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