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