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