#[non_exhaustive]pub enum UncompressedTelecine {
Hard,
None,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against UncompressedTelecine
, 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 uncompressedtelecine = unimplemented!();
match uncompressedtelecine {
UncompressedTelecine::Hard => { /* ... */ },
UncompressedTelecine::None => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when uncompressedtelecine
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant UncompressedTelecine::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
UncompressedTelecine::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 UncompressedTelecine::NewFeature
is defined.
Specifically, when uncompressedtelecine
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on UncompressedTelecine::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. When you do frame rate conversion from 23.976 frames per second (fps) to 29.97 fps, and your output scan type is interlaced, you can optionally enable hard telecine to create a smoother picture. When you keep the default value, None, MediaConvert does a standard frame rate conversion to 29.97 without doing anything with the field polarity to create a smoother picture.
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
Hard
None
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 UncompressedTelecine
impl UncompressedTelecine
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 UncompressedTelecine
impl AsRef<str> for UncompressedTelecine
source§impl Clone for UncompressedTelecine
impl Clone for UncompressedTelecine
source§fn clone(&self) -> UncompressedTelecine
fn clone(&self) -> UncompressedTelecine
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for UncompressedTelecine
impl Debug for UncompressedTelecine
source§impl Display for UncompressedTelecine
impl Display for UncompressedTelecine
source§impl From<&str> for UncompressedTelecine
impl From<&str> for UncompressedTelecine
source§impl FromStr for UncompressedTelecine
impl FromStr for UncompressedTelecine
source§impl Hash for UncompressedTelecine
impl Hash for UncompressedTelecine
source§impl Ord for UncompressedTelecine
impl Ord for UncompressedTelecine
source§fn cmp(&self, other: &UncompressedTelecine) -> Ordering
fn cmp(&self, other: &UncompressedTelecine) -> 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 UncompressedTelecine
impl PartialEq for UncompressedTelecine
source§fn eq(&self, other: &UncompressedTelecine) -> bool
fn eq(&self, other: &UncompressedTelecine) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for UncompressedTelecine
impl PartialOrd for UncompressedTelecine
source§fn partial_cmp(&self, other: &UncompressedTelecine) -> Option<Ordering>
fn partial_cmp(&self, other: &UncompressedTelecine) -> 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 UncompressedTelecine
impl StructuralPartialEq for UncompressedTelecine
Auto Trait Implementations§
impl Freeze for UncompressedTelecine
impl RefUnwindSafe for UncompressedTelecine
impl Send for UncompressedTelecine
impl Sync for UncompressedTelecine
impl Unpin for UncompressedTelecine
impl UnwindSafe for UncompressedTelecine
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