Enum aws_sdk_ecs::types::ExecuteCommandLogging
source · #[non_exhaustive]pub enum ExecuteCommandLogging {
Default,
None,
Override,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against ExecuteCommandLogging
, 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 executecommandlogging = unimplemented!();
match executecommandlogging {
ExecuteCommandLogging::Default => { /* ... */ },
ExecuteCommandLogging::None => { /* ... */ },
ExecuteCommandLogging::Override => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when executecommandlogging
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant ExecuteCommandLogging::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
ExecuteCommandLogging::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 ExecuteCommandLogging::NewFeature
is defined.
Specifically, when executecommandlogging
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on ExecuteCommandLogging::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
Default
None
Override
Unknown(UnknownVariantValue)
Unknown
contains new variants that have been added since this code was generated.
Implementations§
Trait Implementations§
source§impl AsRef<str> for ExecuteCommandLogging
impl AsRef<str> for ExecuteCommandLogging
source§impl Clone for ExecuteCommandLogging
impl Clone for ExecuteCommandLogging
source§fn clone(&self) -> ExecuteCommandLogging
fn clone(&self) -> ExecuteCommandLogging
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for ExecuteCommandLogging
impl Debug for ExecuteCommandLogging
source§impl From<&str> for ExecuteCommandLogging
impl From<&str> for ExecuteCommandLogging
source§impl FromStr for ExecuteCommandLogging
impl FromStr for ExecuteCommandLogging
source§impl Hash for ExecuteCommandLogging
impl Hash for ExecuteCommandLogging
source§impl Ord for ExecuteCommandLogging
impl Ord for ExecuteCommandLogging
source§fn cmp(&self, other: &ExecuteCommandLogging) -> Ordering
fn cmp(&self, other: &ExecuteCommandLogging) -> Ordering
1.21.0 · source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere Self: Sized,
source§impl PartialEq<ExecuteCommandLogging> for ExecuteCommandLogging
impl PartialEq<ExecuteCommandLogging> for ExecuteCommandLogging
source§fn eq(&self, other: &ExecuteCommandLogging) -> bool
fn eq(&self, other: &ExecuteCommandLogging) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd<ExecuteCommandLogging> for ExecuteCommandLogging
impl PartialOrd<ExecuteCommandLogging> for ExecuteCommandLogging
source§fn partial_cmp(&self, other: &ExecuteCommandLogging) -> Option<Ordering>
fn partial_cmp(&self, other: &ExecuteCommandLogging) -> 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 ExecuteCommandLogging
impl StructuralEq for ExecuteCommandLogging
impl StructuralPartialEq for ExecuteCommandLogging
Auto Trait Implementations§
impl RefUnwindSafe for ExecuteCommandLogging
impl Send for ExecuteCommandLogging
impl Sync for ExecuteCommandLogging
impl Unpin for ExecuteCommandLogging
impl UnwindSafe for ExecuteCommandLogging
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
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.