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