Enum aws_sdk_devicefarm::model::UploadCategory
source · #[non_exhaustive]
pub enum UploadCategory {
Curated,
Private,
Unknown(UnknownVariantValue),
}Expand description
When writing a match expression against UploadCategory, 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 uploadcategory = unimplemented!();
match uploadcategory {
UploadCategory::Curated => { /* ... */ },
UploadCategory::Private => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when uploadcategory represents
NewFeature, the execution path will lead to the second last match arm,
even though the enum does not contain a variant UploadCategory::NewFeature
in the current version of SDK. The reason is that the variable other,
created by the @ operator, is bound to
UploadCategory::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 UploadCategory::NewFeature is defined.
Specifically, when uploadcategory represents NewFeature,
the execution path will hit the second last match arm as before by virtue of
calling as_str on UploadCategory::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
Curated
Private
Unknown(UnknownVariantValue)
Unknown contains new variants that have been added since this code was generated.
Implementations§
Trait Implementations§
source§impl AsRef<str> for UploadCategory
impl AsRef<str> for UploadCategory
source§impl Clone for UploadCategory
impl Clone for UploadCategory
source§fn clone(&self) -> UploadCategory
fn clone(&self) -> UploadCategory
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source. Read moresource§impl Debug for UploadCategory
impl Debug for UploadCategory
source§impl From<&str> for UploadCategory
impl From<&str> for UploadCategory
source§impl FromStr for UploadCategory
impl FromStr for UploadCategory
source§impl Hash for UploadCategory
impl Hash for UploadCategory
source§impl Ord for UploadCategory
impl Ord for UploadCategory
source§fn cmp(&self, other: &UploadCategory) -> Ordering
fn cmp(&self, other: &UploadCategory) -> Ordering
1.21.0 · source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
source§impl PartialEq<UploadCategory> for UploadCategory
impl PartialEq<UploadCategory> for UploadCategory
source§fn eq(&self, other: &UploadCategory) -> bool
fn eq(&self, other: &UploadCategory) -> bool
self and other values to be equal, and is used
by ==.source§impl PartialOrd<UploadCategory> for UploadCategory
impl PartialOrd<UploadCategory> for UploadCategory
source§fn partial_cmp(&self, other: &UploadCategory) -> Option<Ordering>
fn partial_cmp(&self, other: &UploadCategory) -> 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 UploadCategory
impl StructuralEq for UploadCategory
impl StructuralPartialEq for UploadCategory
Auto Trait Implementations§
impl RefUnwindSafe for UploadCategory
impl Send for UploadCategory
impl Sync for UploadCategory
impl Unpin for UploadCategory
impl UnwindSafe for UploadCategory
Blanket Implementations§
source§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,
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key and return true if they are equal.