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