#[non_exhaustive]pub enum NielsenActiveWatermarkProcessType {
Cbet,
Naes2AndNw,
Naes2AndNwAndCbet,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against NielsenActiveWatermarkProcessType
, 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 nielsenactivewatermarkprocesstype = unimplemented!();
match nielsenactivewatermarkprocesstype {
NielsenActiveWatermarkProcessType::Cbet => { /* ... */ },
NielsenActiveWatermarkProcessType::Naes2AndNw => { /* ... */ },
NielsenActiveWatermarkProcessType::Naes2AndNwAndCbet => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when nielsenactivewatermarkprocesstype
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant NielsenActiveWatermarkProcessType::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
NielsenActiveWatermarkProcessType::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 NielsenActiveWatermarkProcessType::NewFeature
is defined.
Specifically, when nielsenactivewatermarkprocesstype
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on NielsenActiveWatermarkProcessType::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. Choose the type of Nielsen watermarks that you want in your outputs. When you choose NAES 2 and NW, you must provide a value for the setting SID. When you choose CBET, you must provide a value for the setting CSID. When you choose NAES 2, NW, and CBET, you must provide values for both of these settings.
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
Cbet
Naes2AndNw
Naes2AndNwAndCbet
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 NielsenActiveWatermarkProcessType
impl NielsenActiveWatermarkProcessType
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 NielsenActiveWatermarkProcessType
impl AsRef<str> for NielsenActiveWatermarkProcessType
source§impl Clone for NielsenActiveWatermarkProcessType
impl Clone for NielsenActiveWatermarkProcessType
source§fn clone(&self) -> NielsenActiveWatermarkProcessType
fn clone(&self) -> NielsenActiveWatermarkProcessType
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl From<&str> for NielsenActiveWatermarkProcessType
impl From<&str> for NielsenActiveWatermarkProcessType
source§impl Ord for NielsenActiveWatermarkProcessType
impl Ord for NielsenActiveWatermarkProcessType
source§fn cmp(&self, other: &NielsenActiveWatermarkProcessType) -> Ordering
fn cmp(&self, other: &NielsenActiveWatermarkProcessType) -> 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 NielsenActiveWatermarkProcessType
impl PartialEq for NielsenActiveWatermarkProcessType
source§fn eq(&self, other: &NielsenActiveWatermarkProcessType) -> bool
fn eq(&self, other: &NielsenActiveWatermarkProcessType) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for NielsenActiveWatermarkProcessType
impl PartialOrd for NielsenActiveWatermarkProcessType
source§fn partial_cmp(
&self,
other: &NielsenActiveWatermarkProcessType
) -> Option<Ordering>
fn partial_cmp( &self, other: &NielsenActiveWatermarkProcessType ) -> 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 NielsenActiveWatermarkProcessType
impl StructuralPartialEq for NielsenActiveWatermarkProcessType
Auto Trait Implementations§
impl Freeze for NielsenActiveWatermarkProcessType
impl RefUnwindSafe for NielsenActiveWatermarkProcessType
impl Send for NielsenActiveWatermarkProcessType
impl Sync for NielsenActiveWatermarkProcessType
impl Unpin for NielsenActiveWatermarkProcessType
impl UnwindSafe for NielsenActiveWatermarkProcessType
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