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