#[non_exhaustive]pub enum SimulateReservedQueue {
Disabled,
Enabled,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against SimulateReservedQueue
, 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 simulatereservedqueue = unimplemented!();
match simulatereservedqueue {
SimulateReservedQueue::Disabled => { /* ... */ },
SimulateReservedQueue::Enabled => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when simulatereservedqueue
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant SimulateReservedQueue::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
SimulateReservedQueue::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 SimulateReservedQueue::NewFeature
is defined.
Specifically, when simulatereservedqueue
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on SimulateReservedQueue::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. Enable this setting when you run a test job to estimate how many reserved transcoding slots (RTS) you need. When this is enabled, MediaConvert runs your job from an on-demand queue with similar performance to what you will see with one RTS in a reserved queue. This setting is disabled by default.
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
Disabled
Enabled
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 SimulateReservedQueue
impl SimulateReservedQueue
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 SimulateReservedQueue
impl AsRef<str> for SimulateReservedQueue
source§impl Clone for SimulateReservedQueue
impl Clone for SimulateReservedQueue
source§fn clone(&self) -> SimulateReservedQueue
fn clone(&self) -> SimulateReservedQueue
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for SimulateReservedQueue
impl Debug for SimulateReservedQueue
source§impl Display for SimulateReservedQueue
impl Display for SimulateReservedQueue
source§impl From<&str> for SimulateReservedQueue
impl From<&str> for SimulateReservedQueue
source§impl FromStr for SimulateReservedQueue
impl FromStr for SimulateReservedQueue
source§impl Hash for SimulateReservedQueue
impl Hash for SimulateReservedQueue
source§impl Ord for SimulateReservedQueue
impl Ord for SimulateReservedQueue
source§fn cmp(&self, other: &SimulateReservedQueue) -> Ordering
fn cmp(&self, other: &SimulateReservedQueue) -> 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 SimulateReservedQueue
impl PartialEq for SimulateReservedQueue
source§fn eq(&self, other: &SimulateReservedQueue) -> bool
fn eq(&self, other: &SimulateReservedQueue) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for SimulateReservedQueue
impl PartialOrd for SimulateReservedQueue
source§fn partial_cmp(&self, other: &SimulateReservedQueue) -> Option<Ordering>
fn partial_cmp(&self, other: &SimulateReservedQueue) -> 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 SimulateReservedQueue
impl StructuralPartialEq for SimulateReservedQueue
Auto Trait Implementations§
impl Freeze for SimulateReservedQueue
impl RefUnwindSafe for SimulateReservedQueue
impl Send for SimulateReservedQueue
impl Sync for SimulateReservedQueue
impl Unpin for SimulateReservedQueue
impl UnwindSafe for SimulateReservedQueue
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