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