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