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