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