Enum aws_sdk_mediaconvert::types::TimedMetadata
source · #[non_exhaustive]pub enum TimedMetadata {
None,
Passthrough,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against TimedMetadata
, 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 timedmetadata = unimplemented!();
match timedmetadata {
TimedMetadata::None => { /* ... */ },
TimedMetadata::Passthrough => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when timedmetadata
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant TimedMetadata::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
TimedMetadata::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 TimedMetadata::NewFeature
is defined.
Specifically, when timedmetadata
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on TimedMetadata::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. Set ID3 metadata to Passthrough to include ID3 metadata in this output. This includes ID3 metadata from the following features: ID3 timestamp period, and Custom ID3 metadata inserter. To exclude this ID3 metadata in this output: set ID3 metadata to None or leave blank.
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
None
Passthrough
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 TimedMetadata
impl TimedMetadata
source§impl TimedMetadata
impl TimedMetadata
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 TimedMetadata
impl AsRef<str> for TimedMetadata
source§impl Clone for TimedMetadata
impl Clone for TimedMetadata
source§fn clone(&self) -> TimedMetadata
fn clone(&self) -> TimedMetadata
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for TimedMetadata
impl Debug for TimedMetadata
source§impl Display for TimedMetadata
impl Display for TimedMetadata
source§impl From<&str> for TimedMetadata
impl From<&str> for TimedMetadata
source§impl FromStr for TimedMetadata
impl FromStr for TimedMetadata
source§impl Hash for TimedMetadata
impl Hash for TimedMetadata
source§impl Ord for TimedMetadata
impl Ord for TimedMetadata
source§fn cmp(&self, other: &TimedMetadata) -> Ordering
fn cmp(&self, other: &TimedMetadata) -> 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 TimedMetadata
impl PartialEq for TimedMetadata
source§fn eq(&self, other: &TimedMetadata) -> bool
fn eq(&self, other: &TimedMetadata) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for TimedMetadata
impl PartialOrd for TimedMetadata
source§fn partial_cmp(&self, other: &TimedMetadata) -> Option<Ordering>
fn partial_cmp(&self, other: &TimedMetadata) -> 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 TimedMetadata
impl StructuralPartialEq for TimedMetadata
Auto Trait Implementations§
impl Freeze for TimedMetadata
impl RefUnwindSafe for TimedMetadata
impl Send for TimedMetadata
impl Sync for TimedMetadata
impl Unpin for TimedMetadata
impl UnwindSafe for TimedMetadata
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