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