#[non_exhaustive]pub enum AnalysisFilterAttribute {
AnalysisName,
DirectQuicksightOwner,
DirectQuicksightSoleOwner,
DirectQuicksightViewerOrOwner,
QuicksightOwner,
QuicksightUser,
QuicksightViewerOrOwner,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against AnalysisFilterAttribute
, 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 analysisfilterattribute = unimplemented!();
match analysisfilterattribute {
AnalysisFilterAttribute::AnalysisName => { /* ... */ },
AnalysisFilterAttribute::DirectQuicksightOwner => { /* ... */ },
AnalysisFilterAttribute::DirectQuicksightSoleOwner => { /* ... */ },
AnalysisFilterAttribute::DirectQuicksightViewerOrOwner => { /* ... */ },
AnalysisFilterAttribute::QuicksightOwner => { /* ... */ },
AnalysisFilterAttribute::QuicksightUser => { /* ... */ },
AnalysisFilterAttribute::QuicksightViewerOrOwner => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when analysisfilterattribute
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant AnalysisFilterAttribute::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
AnalysisFilterAttribute::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 AnalysisFilterAttribute::NewFeature
is defined.
Specifically, when analysisfilterattribute
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on AnalysisFilterAttribute::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
AnalysisName
DirectQuicksightOwner
DirectQuicksightSoleOwner
DirectQuicksightViewerOrOwner
QuicksightOwner
QuicksightUser
QuicksightViewerOrOwner
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 AnalysisFilterAttribute
impl AnalysisFilterAttribute
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 AnalysisFilterAttribute
impl AsRef<str> for AnalysisFilterAttribute
source§impl Clone for AnalysisFilterAttribute
impl Clone for AnalysisFilterAttribute
source§fn clone(&self) -> AnalysisFilterAttribute
fn clone(&self) -> AnalysisFilterAttribute
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for AnalysisFilterAttribute
impl Debug for AnalysisFilterAttribute
source§impl Display for AnalysisFilterAttribute
impl Display for AnalysisFilterAttribute
source§impl From<&str> for AnalysisFilterAttribute
impl From<&str> for AnalysisFilterAttribute
source§impl FromStr for AnalysisFilterAttribute
impl FromStr for AnalysisFilterAttribute
source§impl Hash for AnalysisFilterAttribute
impl Hash for AnalysisFilterAttribute
source§impl Ord for AnalysisFilterAttribute
impl Ord for AnalysisFilterAttribute
source§fn cmp(&self, other: &AnalysisFilterAttribute) -> Ordering
fn cmp(&self, other: &AnalysisFilterAttribute) -> 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 AnalysisFilterAttribute
impl PartialEq for AnalysisFilterAttribute
source§fn eq(&self, other: &AnalysisFilterAttribute) -> bool
fn eq(&self, other: &AnalysisFilterAttribute) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for AnalysisFilterAttribute
impl PartialOrd for AnalysisFilterAttribute
source§fn partial_cmp(&self, other: &AnalysisFilterAttribute) -> Option<Ordering>
fn partial_cmp(&self, other: &AnalysisFilterAttribute) -> 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 AnalysisFilterAttribute
impl StructuralPartialEq for AnalysisFilterAttribute
Auto Trait Implementations§
impl Freeze for AnalysisFilterAttribute
impl RefUnwindSafe for AnalysisFilterAttribute
impl Send for AnalysisFilterAttribute
impl Sync for AnalysisFilterAttribute
impl Unpin for AnalysisFilterAttribute
impl UnwindSafe for AnalysisFilterAttribute
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> Comparable<K> for Q
impl<Q, K> Comparable<K> for Q
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<T> IntoEither for T
impl<T> IntoEither for T
source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read more