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