Enum aws_sdk_mediaconvert::types::Commitment
source · #[non_exhaustive]pub enum Commitment {
OneYear,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against Commitment
, 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 commitment = unimplemented!();
match commitment {
Commitment::OneYear => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when commitment
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant Commitment::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
Commitment::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 Commitment::NewFeature
is defined.
Specifically, when commitment
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on Commitment::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. The length of the term of your reserved queue pricing plan commitment.
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
OneYear
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 Commitment
impl Commitment
source§impl Commitment
impl Commitment
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 Commitment
impl AsRef<str> for Commitment
source§impl Clone for Commitment
impl Clone for Commitment
source§fn clone(&self) -> Commitment
fn clone(&self) -> Commitment
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for Commitment
impl Debug for Commitment
source§impl Display for Commitment
impl Display for Commitment
source§impl From<&str> for Commitment
impl From<&str> for Commitment
source§impl FromStr for Commitment
impl FromStr for Commitment
source§impl Hash for Commitment
impl Hash for Commitment
source§impl Ord for Commitment
impl Ord for Commitment
source§fn cmp(&self, other: &Commitment) -> Ordering
fn cmp(&self, other: &Commitment) -> 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 Commitment
impl PartialEq for Commitment
source§fn eq(&self, other: &Commitment) -> bool
fn eq(&self, other: &Commitment) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for Commitment
impl PartialOrd for Commitment
source§fn partial_cmp(&self, other: &Commitment) -> Option<Ordering>
fn partial_cmp(&self, other: &Commitment) -> 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 Commitment
impl StructuralPartialEq for Commitment
Auto Trait Implementations§
impl Freeze for Commitment
impl RefUnwindSafe for Commitment
impl Send for Commitment
impl Sync for Commitment
impl Unpin for Commitment
impl UnwindSafe for Commitment
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
source§impl<Q, K> Comparable<K> for Q
impl<Q, K> Comparable<K> for Q
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<T> IntoEither for T
impl<T> IntoEither for T
source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read more