Enum aws_sdk_mediaconnect::types::Range
source · #[non_exhaustive]pub enum Range {
Full,
Fullprotect,
Narrow,
Unknown(UnknownVariantValue),
}Expand description
When writing a match expression against Range, 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 range = unimplemented!();
match range {
Range::Full => { /* ... */ },
Range::Fullprotect => { /* ... */ },
Range::Narrow => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when range represents
NewFeature, the execution path will lead to the second last match arm,
even though the enum does not contain a variant Range::NewFeature
in the current version of SDK. The reason is that the variable other,
created by the @ operator, is bound to
Range::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 Range::NewFeature is defined.
Specifically, when range represents NewFeature,
the execution path will hit the second last match arm as before by virtue of
calling as_str on Range::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
Full
Fullprotect
Narrow
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§
Trait Implementations§
source§impl Ord for Range
impl Ord for Range
source§impl PartialEq for Range
impl PartialEq for Range
source§impl PartialOrd for Range
impl PartialOrd for Range
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 Range
impl StructuralEq for Range
impl StructuralPartialEq for Range
Auto Trait Implementations§
impl RefUnwindSafe for Range
impl Send for Range
impl Sync for Range
impl Unpin for Range
impl UnwindSafe for Range
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.