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