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