Enum aws_sdk_mediaconnect::types::Colorimetry
source · #[non_exhaustive]pub enum Colorimetry {
Bt2020,
Bt2100,
Bt601,
Bt709,
St20651,
St20653,
Xyz,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against Colorimetry
, 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 colorimetry = unimplemented!();
match colorimetry {
Colorimetry::Bt2020 => { /* ... */ },
Colorimetry::Bt2100 => { /* ... */ },
Colorimetry::Bt601 => { /* ... */ },
Colorimetry::Bt709 => { /* ... */ },
Colorimetry::St20651 => { /* ... */ },
Colorimetry::St20653 => { /* ... */ },
Colorimetry::Xyz => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when colorimetry
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant Colorimetry::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
Colorimetry::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 Colorimetry::NewFeature
is defined.
Specifically, when colorimetry
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on Colorimetry::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
Bt2020
Bt2100
Bt601
Bt709
St20651
St20653
Xyz
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 Colorimetry
impl Colorimetry
source§impl Colorimetry
impl Colorimetry
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 Colorimetry
impl AsRef<str> for Colorimetry
source§impl Clone for Colorimetry
impl Clone for Colorimetry
source§fn clone(&self) -> Colorimetry
fn clone(&self) -> Colorimetry
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for Colorimetry
impl Debug for Colorimetry
source§impl Display for Colorimetry
impl Display for Colorimetry
source§impl From<&str> for Colorimetry
impl From<&str> for Colorimetry
source§impl FromStr for Colorimetry
impl FromStr for Colorimetry
source§impl Hash for Colorimetry
impl Hash for Colorimetry
source§impl Ord for Colorimetry
impl Ord for Colorimetry
source§fn cmp(&self, other: &Colorimetry) -> Ordering
fn cmp(&self, other: &Colorimetry) -> 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 Colorimetry
impl PartialEq for Colorimetry
source§fn eq(&self, other: &Colorimetry) -> bool
fn eq(&self, other: &Colorimetry) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for Colorimetry
impl PartialOrd for Colorimetry
source§fn partial_cmp(&self, other: &Colorimetry) -> Option<Ordering>
fn partial_cmp(&self, other: &Colorimetry) -> 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 Colorimetry
impl StructuralPartialEq for Colorimetry
Auto Trait Implementations§
impl Freeze for Colorimetry
impl RefUnwindSafe for Colorimetry
impl Send for Colorimetry
impl Sync for Colorimetry
impl Unpin for Colorimetry
impl UnwindSafe for Colorimetry
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