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