#[non_exhaustive]
pub enum SimpleCriterionKeyForJob {
AccountId,
S3BucketEffectivePermission,
S3BucketName,
S3BucketSharedAccess,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against SimpleCriterionKeyForJob
, 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 simplecriterionkeyforjob = unimplemented!();
match simplecriterionkeyforjob {
SimpleCriterionKeyForJob::AccountId => { /* ... */ },
SimpleCriterionKeyForJob::S3BucketEffectivePermission => { /* ... */ },
SimpleCriterionKeyForJob::S3BucketName => { /* ... */ },
SimpleCriterionKeyForJob::S3BucketSharedAccess => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when simplecriterionkeyforjob
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant SimpleCriterionKeyForJob::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
SimpleCriterionKeyForJob::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 SimpleCriterionKeyForJob::NewFeature
is defined.
Specifically, when simplecriterionkeyforjob
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on SimpleCriterionKeyForJob::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.
The property to use in a condition that determines whether an S3 bucket is included or excluded from a classification job. Valid values are:
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
AccountId
S3BucketEffectivePermission
S3BucketName
Unknown(UnknownVariantValue)
Unknown
contains new variants that have been added since this code was generated.
Implementations§
Trait Implementations§
source§impl AsRef<str> for SimpleCriterionKeyForJob
impl AsRef<str> for SimpleCriterionKeyForJob
source§impl Clone for SimpleCriterionKeyForJob
impl Clone for SimpleCriterionKeyForJob
source§fn clone(&self) -> SimpleCriterionKeyForJob
fn clone(&self) -> SimpleCriterionKeyForJob
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for SimpleCriterionKeyForJob
impl Debug for SimpleCriterionKeyForJob
source§impl From<&str> for SimpleCriterionKeyForJob
impl From<&str> for SimpleCriterionKeyForJob
source§impl FromStr for SimpleCriterionKeyForJob
impl FromStr for SimpleCriterionKeyForJob
source§impl Hash for SimpleCriterionKeyForJob
impl Hash for SimpleCriterionKeyForJob
source§impl Ord for SimpleCriterionKeyForJob
impl Ord for SimpleCriterionKeyForJob
source§fn cmp(&self, other: &SimpleCriterionKeyForJob) -> Ordering
fn cmp(&self, other: &SimpleCriterionKeyForJob) -> Ordering
1.21.0 · source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere Self: Sized,
source§impl PartialEq<SimpleCriterionKeyForJob> for SimpleCriterionKeyForJob
impl PartialEq<SimpleCriterionKeyForJob> for SimpleCriterionKeyForJob
source§fn eq(&self, other: &SimpleCriterionKeyForJob) -> bool
fn eq(&self, other: &SimpleCriterionKeyForJob) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd<SimpleCriterionKeyForJob> for SimpleCriterionKeyForJob
impl PartialOrd<SimpleCriterionKeyForJob> for SimpleCriterionKeyForJob
source§fn partial_cmp(&self, other: &SimpleCriterionKeyForJob) -> Option<Ordering>
fn partial_cmp(&self, other: &SimpleCriterionKeyForJob) -> 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 SimpleCriterionKeyForJob
impl StructuralEq for SimpleCriterionKeyForJob
impl StructuralPartialEq for SimpleCriterionKeyForJob
Auto Trait Implementations§
impl RefUnwindSafe for SimpleCriterionKeyForJob
impl Send for SimpleCriterionKeyForJob
impl Sync for SimpleCriterionKeyForJob
impl Unpin for SimpleCriterionKeyForJob
impl UnwindSafe for SimpleCriterionKeyForJob
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.