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