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