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