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