#[non_exhaustive]pub enum ImscStylePassthrough {
Disabled,
Enabled,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against ImscStylePassthrough
, 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 imscstylepassthrough = unimplemented!();
match imscstylepassthrough {
ImscStylePassthrough::Disabled => { /* ... */ },
ImscStylePassthrough::Enabled => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when imscstylepassthrough
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant ImscStylePassthrough::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
ImscStylePassthrough::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 ImscStylePassthrough::NewFeature
is defined.
Specifically, when imscstylepassthrough
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on ImscStylePassthrough::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. Keep this setting enabled to have MediaConvert use the font style and position information from the captions source in the output. This option is available only when your input captions are IMSC, SMPTE-TT, or TTML. Disable this setting for simplified output captions.
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
Disabled
Enabled
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 ImscStylePassthrough
impl ImscStylePassthrough
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 ImscStylePassthrough
impl AsRef<str> for ImscStylePassthrough
source§impl Clone for ImscStylePassthrough
impl Clone for ImscStylePassthrough
source§fn clone(&self) -> ImscStylePassthrough
fn clone(&self) -> ImscStylePassthrough
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for ImscStylePassthrough
impl Debug for ImscStylePassthrough
source§impl Display for ImscStylePassthrough
impl Display for ImscStylePassthrough
source§impl From<&str> for ImscStylePassthrough
impl From<&str> for ImscStylePassthrough
source§impl FromStr for ImscStylePassthrough
impl FromStr for ImscStylePassthrough
source§impl Hash for ImscStylePassthrough
impl Hash for ImscStylePassthrough
source§impl Ord for ImscStylePassthrough
impl Ord for ImscStylePassthrough
source§fn cmp(&self, other: &ImscStylePassthrough) -> Ordering
fn cmp(&self, other: &ImscStylePassthrough) -> 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 ImscStylePassthrough
impl PartialEq for ImscStylePassthrough
source§fn eq(&self, other: &ImscStylePassthrough) -> bool
fn eq(&self, other: &ImscStylePassthrough) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for ImscStylePassthrough
impl PartialOrd for ImscStylePassthrough
source§fn partial_cmp(&self, other: &ImscStylePassthrough) -> Option<Ordering>
fn partial_cmp(&self, other: &ImscStylePassthrough) -> 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 ImscStylePassthrough
impl StructuralPartialEq for ImscStylePassthrough
Auto Trait Implementations§
impl Freeze for ImscStylePassthrough
impl RefUnwindSafe for ImscStylePassthrough
impl Send for ImscStylePassthrough
impl Sync for ImscStylePassthrough
impl Unpin for ImscStylePassthrough
impl UnwindSafe for ImscStylePassthrough
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