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