#[non_exhaustive]pub enum FindingSourceType {
BucketAcl,
Policy,
S3AccessPoint,
S3AccessPointAccount,
Unknown(UnknownVariantValue),
}Expand description
When writing a match expression against FindingSourceType, 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 findingsourcetype = unimplemented!();
match findingsourcetype {
FindingSourceType::BucketAcl => { /* ... */ },
FindingSourceType::Policy => { /* ... */ },
FindingSourceType::S3AccessPoint => { /* ... */ },
FindingSourceType::S3AccessPointAccount => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when findingsourcetype represents
NewFeature, the execution path will lead to the second last match arm,
even though the enum does not contain a variant FindingSourceType::NewFeature
in the current version of SDK. The reason is that the variable other,
created by the @ operator, is bound to
FindingSourceType::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 FindingSourceType::NewFeature is defined.
Specifically, when findingsourcetype represents NewFeature,
the execution path will hit the second last match arm as before by virtue of
calling as_str on FindingSourceType::NewFeature also yielding "NewFeature".
Explicitly matching on the Unknown variant should
be avoided for two reasons:
- The inner data
UnknownVariantValueis 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
BucketAcl
Policy
S3AccessPoint
S3AccessPointAccount
Unknown(UnknownVariantValue)
Unknown contains new variants that have been added since this code was generated.
Implementations§
Trait Implementations§
source§impl AsRef<str> for FindingSourceType
impl AsRef<str> for FindingSourceType
source§impl Clone for FindingSourceType
impl Clone for FindingSourceType
source§fn clone(&self) -> FindingSourceType
fn clone(&self) -> FindingSourceType
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source. Read moresource§impl Debug for FindingSourceType
impl Debug for FindingSourceType
source§impl From<&str> for FindingSourceType
impl From<&str> for FindingSourceType
source§impl FromStr for FindingSourceType
impl FromStr for FindingSourceType
source§impl Hash for FindingSourceType
impl Hash for FindingSourceType
source§impl Ord for FindingSourceType
impl Ord for FindingSourceType
source§fn cmp(&self, other: &FindingSourceType) -> Ordering
fn cmp(&self, other: &FindingSourceType) -> 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 FindingSourceType
impl PartialEq for FindingSourceType
source§fn eq(&self, other: &FindingSourceType) -> bool
fn eq(&self, other: &FindingSourceType) -> bool
self and other values to be equal, and is used
by ==.source§impl PartialOrd for FindingSourceType
impl PartialOrd for FindingSourceType
source§fn partial_cmp(&self, other: &FindingSourceType) -> Option<Ordering>
fn partial_cmp(&self, other: &FindingSourceType) -> 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 FindingSourceType
impl StructuralEq for FindingSourceType
impl StructuralPartialEq for FindingSourceType
Auto Trait Implementations§
impl RefUnwindSafe for FindingSourceType
impl Send for FindingSourceType
impl Sync for FindingSourceType
impl Unpin for FindingSourceType
impl UnwindSafe for FindingSourceType
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
§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,
§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
§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,
§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key and return true if they are equal.