#[non_exhaustive]
pub enum VocabularyLanguageCode {
Show 24 variants
ArAe,
DeCh,
DeDe,
EnAb,
EnAu,
EnGb,
EnIe,
EnIn,
EnNz,
EnUs,
EnWl,
EnZa,
EsEs,
EsUs,
FrCa,
FrFr,
HiIn,
ItIt,
JaJp,
KoKr,
PtBr,
PtPt,
ZhCn,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against VocabularyLanguageCode
, 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 vocabularylanguagecode = unimplemented!();
match vocabularylanguagecode {
VocabularyLanguageCode::ArAe => { /* ... */ },
VocabularyLanguageCode::DeCh => { /* ... */ },
VocabularyLanguageCode::DeDe => { /* ... */ },
VocabularyLanguageCode::EnAb => { /* ... */ },
VocabularyLanguageCode::EnAu => { /* ... */ },
VocabularyLanguageCode::EnGb => { /* ... */ },
VocabularyLanguageCode::EnIe => { /* ... */ },
VocabularyLanguageCode::EnIn => { /* ... */ },
VocabularyLanguageCode::EnNz => { /* ... */ },
VocabularyLanguageCode::EnUs => { /* ... */ },
VocabularyLanguageCode::EnWl => { /* ... */ },
VocabularyLanguageCode::EnZa => { /* ... */ },
VocabularyLanguageCode::EsEs => { /* ... */ },
VocabularyLanguageCode::EsUs => { /* ... */ },
VocabularyLanguageCode::FrCa => { /* ... */ },
VocabularyLanguageCode::FrFr => { /* ... */ },
VocabularyLanguageCode::HiIn => { /* ... */ },
VocabularyLanguageCode::ItIt => { /* ... */ },
VocabularyLanguageCode::JaJp => { /* ... */ },
VocabularyLanguageCode::KoKr => { /* ... */ },
VocabularyLanguageCode::PtBr => { /* ... */ },
VocabularyLanguageCode::PtPt => { /* ... */ },
VocabularyLanguageCode::ZhCn => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when vocabularylanguagecode
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant VocabularyLanguageCode::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
VocabularyLanguageCode::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 VocabularyLanguageCode::NewFeature
is defined.
Specifically, when vocabularylanguagecode
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on VocabularyLanguageCode::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
ArAe
DeCh
DeDe
EnAb
EnAu
EnGb
EnIe
EnIn
EnNz
EnUs
EnWl
EnZa
EsEs
EsUs
FrCa
FrFr
HiIn
ItIt
JaJp
KoKr
PtBr
PtPt
ZhCn
Unknown(UnknownVariantValue)
Unknown
contains new variants that have been added since this code was generated.
Implementations§
Trait Implementations§
source§impl AsRef<str> for VocabularyLanguageCode
impl AsRef<str> for VocabularyLanguageCode
source§impl Clone for VocabularyLanguageCode
impl Clone for VocabularyLanguageCode
source§fn clone(&self) -> VocabularyLanguageCode
fn clone(&self) -> VocabularyLanguageCode
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for VocabularyLanguageCode
impl Debug for VocabularyLanguageCode
source§impl From<&str> for VocabularyLanguageCode
impl From<&str> for VocabularyLanguageCode
source§impl FromStr for VocabularyLanguageCode
impl FromStr for VocabularyLanguageCode
source§impl Hash for VocabularyLanguageCode
impl Hash for VocabularyLanguageCode
source§impl Ord for VocabularyLanguageCode
impl Ord for VocabularyLanguageCode
source§fn cmp(&self, other: &VocabularyLanguageCode) -> Ordering
fn cmp(&self, other: &VocabularyLanguageCode) -> Ordering
1.21.0 · source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
source§impl PartialEq<VocabularyLanguageCode> for VocabularyLanguageCode
impl PartialEq<VocabularyLanguageCode> for VocabularyLanguageCode
source§fn eq(&self, other: &VocabularyLanguageCode) -> bool
fn eq(&self, other: &VocabularyLanguageCode) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd<VocabularyLanguageCode> for VocabularyLanguageCode
impl PartialOrd<VocabularyLanguageCode> for VocabularyLanguageCode
source§fn partial_cmp(&self, other: &VocabularyLanguageCode) -> Option<Ordering>
fn partial_cmp(&self, other: &VocabularyLanguageCode) -> 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 VocabularyLanguageCode
impl StructuralEq for VocabularyLanguageCode
impl StructuralPartialEq for VocabularyLanguageCode
Auto Trait Implementations§
impl RefUnwindSafe for VocabularyLanguageCode
impl Send for VocabularyLanguageCode
impl Sync for VocabularyLanguageCode
impl Unpin for VocabularyLanguageCode
impl UnwindSafe for VocabularyLanguageCode
Blanket Implementations§
source§impl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
impl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.