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