#[non_exhaustive]
pub enum DomainConfigurationStatus {
Disabled,
Enabled,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against DomainConfigurationStatus
, 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 domainconfigurationstatus = unimplemented!();
match domainconfigurationstatus {
DomainConfigurationStatus::Disabled => { /* ... */ },
DomainConfigurationStatus::Enabled => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when domainconfigurationstatus
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant DomainConfigurationStatus::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
DomainConfigurationStatus::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 DomainConfigurationStatus::NewFeature
is defined.
Specifically, when domainconfigurationstatus
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on DomainConfigurationStatus::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
Disabled
Enabled
Unknown(UnknownVariantValue)
Unknown
contains new variants that have been added since this code was generated.
Implementations§
source§impl DomainConfigurationStatus
impl DomainConfigurationStatus
sourcepub fn as_str(&self) -> &str
pub fn as_str(&self) -> &str
Returns the &str
value of the enum member.
Examples found in repository?
More examples
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pub fn serialize_structure_crate_input_update_domain_configuration_input(
object: &mut aws_smithy_json::serialize::JsonObjectWriter,
input: &crate::input::UpdateDomainConfigurationInput,
) -> Result<(), aws_smithy_http::operation::error::SerializationError> {
if let Some(var_437) = &input.authorizer_config {
#[allow(unused_mut)]
let mut object_438 = object.key("authorizerConfig").start_object();
crate::json_ser::serialize_structure_crate_model_authorizer_config(
&mut object_438,
var_437,
)?;
object_438.finish();
}
if let Some(var_439) = &input.domain_configuration_status {
object
.key("domainConfigurationStatus")
.string(var_439.as_str());
}
if input.remove_authorizer_config {
object
.key("removeAuthorizerConfig")
.boolean(input.remove_authorizer_config);
}
Ok(())
}
Trait Implementations§
source§impl AsRef<str> for DomainConfigurationStatus
impl AsRef<str> for DomainConfigurationStatus
source§impl Clone for DomainConfigurationStatus
impl Clone for DomainConfigurationStatus
source§fn clone(&self) -> DomainConfigurationStatus
fn clone(&self) -> DomainConfigurationStatus
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for DomainConfigurationStatus
impl Debug for DomainConfigurationStatus
source§impl From<&str> for DomainConfigurationStatus
impl From<&str> for DomainConfigurationStatus
source§impl FromStr for DomainConfigurationStatus
impl FromStr for DomainConfigurationStatus
source§impl Hash for DomainConfigurationStatus
impl Hash for DomainConfigurationStatus
source§impl Ord for DomainConfigurationStatus
impl Ord for DomainConfigurationStatus
source§fn cmp(&self, other: &DomainConfigurationStatus) -> Ordering
fn cmp(&self, other: &DomainConfigurationStatus) -> Ordering
1.21.0 · source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
source§impl PartialEq<DomainConfigurationStatus> for DomainConfigurationStatus
impl PartialEq<DomainConfigurationStatus> for DomainConfigurationStatus
source§fn eq(&self, other: &DomainConfigurationStatus) -> bool
fn eq(&self, other: &DomainConfigurationStatus) -> bool
source§impl PartialOrd<DomainConfigurationStatus> for DomainConfigurationStatus
impl PartialOrd<DomainConfigurationStatus> for DomainConfigurationStatus
source§fn partial_cmp(&self, other: &DomainConfigurationStatus) -> Option<Ordering>
fn partial_cmp(&self, other: &DomainConfigurationStatus) -> 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 DomainConfigurationStatus
impl StructuralEq for DomainConfigurationStatus
impl StructuralPartialEq for DomainConfigurationStatus
Auto Trait Implementations§
impl RefUnwindSafe for DomainConfigurationStatus
impl Send for DomainConfigurationStatus
impl Sync for DomainConfigurationStatus
impl Unpin for DomainConfigurationStatus
impl UnwindSafe for DomainConfigurationStatus
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.