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