#[non_exhaustive]
pub enum RuleGroupsNamespaceStatusCode {
Active,
Creating,
CreationFailed,
Deleting,
UpdateFailed,
Updating,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against RuleGroupsNamespaceStatusCode
, 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 rulegroupsnamespacestatuscode = unimplemented!();
match rulegroupsnamespacestatuscode {
RuleGroupsNamespaceStatusCode::Active => { /* ... */ },
RuleGroupsNamespaceStatusCode::Creating => { /* ... */ },
RuleGroupsNamespaceStatusCode::CreationFailed => { /* ... */ },
RuleGroupsNamespaceStatusCode::Deleting => { /* ... */ },
RuleGroupsNamespaceStatusCode::UpdateFailed => { /* ... */ },
RuleGroupsNamespaceStatusCode::Updating => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when rulegroupsnamespacestatuscode
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant RuleGroupsNamespaceStatusCode::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
RuleGroupsNamespaceStatusCode::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 RuleGroupsNamespaceStatusCode::NewFeature
is defined.
Specifically, when rulegroupsnamespacestatuscode
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on RuleGroupsNamespaceStatusCode::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. State of a namespace.
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
Active
Namespace has been created/updated. Update/Deletion is disallowed until namespace is ACTIVE and workspace status is ACTIVE.
Creating
Namespace is being created. Update/Deletion is disallowed until namespace is ACTIVE and workspace status is ACTIVE.
CreationFailed
Namespace creation failed.
Deleting
Namespace is being deleting. Update/Deletion is disallowed until namespace is ACTIVE and workspace status is ACTIVE.
UpdateFailed
Namespace update failed.
Updating
Namespace is being updated. Update/Deletion is disallowed until namespace is ACTIVE and workspace status is ACTIVE.
Unknown(UnknownVariantValue)
Unknown
contains new variants that have been added since this code was generated.
Implementations§
Trait Implementations§
source§impl AsRef<str> for RuleGroupsNamespaceStatusCode
impl AsRef<str> for RuleGroupsNamespaceStatusCode
source§impl Clone for RuleGroupsNamespaceStatusCode
impl Clone for RuleGroupsNamespaceStatusCode
source§fn clone(&self) -> RuleGroupsNamespaceStatusCode
fn clone(&self) -> RuleGroupsNamespaceStatusCode
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl From<&str> for RuleGroupsNamespaceStatusCode
impl From<&str> for RuleGroupsNamespaceStatusCode
source§impl Hash for RuleGroupsNamespaceStatusCode
impl Hash for RuleGroupsNamespaceStatusCode
source§impl Ord for RuleGroupsNamespaceStatusCode
impl Ord for RuleGroupsNamespaceStatusCode
source§fn cmp(&self, other: &RuleGroupsNamespaceStatusCode) -> Ordering
fn cmp(&self, other: &RuleGroupsNamespaceStatusCode) -> Ordering
1.21.0 · source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
source§impl PartialEq<RuleGroupsNamespaceStatusCode> for RuleGroupsNamespaceStatusCode
impl PartialEq<RuleGroupsNamespaceStatusCode> for RuleGroupsNamespaceStatusCode
source§fn eq(&self, other: &RuleGroupsNamespaceStatusCode) -> bool
fn eq(&self, other: &RuleGroupsNamespaceStatusCode) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd<RuleGroupsNamespaceStatusCode> for RuleGroupsNamespaceStatusCode
impl PartialOrd<RuleGroupsNamespaceStatusCode> for RuleGroupsNamespaceStatusCode
source§fn partial_cmp(&self, other: &RuleGroupsNamespaceStatusCode) -> Option<Ordering>
fn partial_cmp(&self, other: &RuleGroupsNamespaceStatusCode) -> 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 RuleGroupsNamespaceStatusCode
impl StructuralEq for RuleGroupsNamespaceStatusCode
impl StructuralPartialEq for RuleGroupsNamespaceStatusCode
Auto Trait Implementations§
impl RefUnwindSafe for RuleGroupsNamespaceStatusCode
impl Send for RuleGroupsNamespaceStatusCode
impl Sync for RuleGroupsNamespaceStatusCode
impl Unpin for RuleGroupsNamespaceStatusCode
impl UnwindSafe for RuleGroupsNamespaceStatusCode
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.