#[non_exhaustive]pub enum JobTemplateListBy {
CreationDate,
Name,
System,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against JobTemplateListBy
, 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 jobtemplatelistby = unimplemented!();
match jobtemplatelistby {
JobTemplateListBy::CreationDate => { /* ... */ },
JobTemplateListBy::Name => { /* ... */ },
JobTemplateListBy::System => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when jobtemplatelistby
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant JobTemplateListBy::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
JobTemplateListBy::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 JobTemplateListBy::NewFeature
is defined.
Specifically, when jobtemplatelistby
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on JobTemplateListBy::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. Optional. When you request a list of job templates, you can choose to list them alphabetically by NAME or chronologically by CREATION_DATE. If you don’t specify, the service will list them by name.
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
CreationDate
Name
System
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 JobTemplateListBy
impl JobTemplateListBy
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 JobTemplateListBy
impl AsRef<str> for JobTemplateListBy
source§impl Clone for JobTemplateListBy
impl Clone for JobTemplateListBy
source§fn clone(&self) -> JobTemplateListBy
fn clone(&self) -> JobTemplateListBy
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for JobTemplateListBy
impl Debug for JobTemplateListBy
source§impl Display for JobTemplateListBy
impl Display for JobTemplateListBy
source§impl From<&str> for JobTemplateListBy
impl From<&str> for JobTemplateListBy
source§impl FromStr for JobTemplateListBy
impl FromStr for JobTemplateListBy
source§impl Hash for JobTemplateListBy
impl Hash for JobTemplateListBy
source§impl Ord for JobTemplateListBy
impl Ord for JobTemplateListBy
source§fn cmp(&self, other: &JobTemplateListBy) -> Ordering
fn cmp(&self, other: &JobTemplateListBy) -> 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 JobTemplateListBy
impl PartialEq for JobTemplateListBy
source§fn eq(&self, other: &JobTemplateListBy) -> bool
fn eq(&self, other: &JobTemplateListBy) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for JobTemplateListBy
impl PartialOrd for JobTemplateListBy
source§fn partial_cmp(&self, other: &JobTemplateListBy) -> Option<Ordering>
fn partial_cmp(&self, other: &JobTemplateListBy) -> 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 JobTemplateListBy
impl StructuralPartialEq for JobTemplateListBy
Auto Trait Implementations§
impl Freeze for JobTemplateListBy
impl RefUnwindSafe for JobTemplateListBy
impl Send for JobTemplateListBy
impl Sync for JobTemplateListBy
impl Unpin for JobTemplateListBy
impl UnwindSafe for JobTemplateListBy
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