#[non_exhaustive]pub enum DvbSubtitleFontColor {
Auto,
Black,
Blue,
Green,
Hex,
Red,
White,
Yellow,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against DvbSubtitleFontColor
, 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 dvbsubtitlefontcolor = unimplemented!();
match dvbsubtitlefontcolor {
DvbSubtitleFontColor::Auto => { /* ... */ },
DvbSubtitleFontColor::Black => { /* ... */ },
DvbSubtitleFontColor::Blue => { /* ... */ },
DvbSubtitleFontColor::Green => { /* ... */ },
DvbSubtitleFontColor::Hex => { /* ... */ },
DvbSubtitleFontColor::Red => { /* ... */ },
DvbSubtitleFontColor::White => { /* ... */ },
DvbSubtitleFontColor::Yellow => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when dvbsubtitlefontcolor
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant DvbSubtitleFontColor::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
DvbSubtitleFontColor::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 DvbSubtitleFontColor::NewFeature
is defined.
Specifically, when dvbsubtitlefontcolor
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on DvbSubtitleFontColor::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. Specify the color of the captions text. Leave Font color blank and set Style passthrough to enabled to use the font color data from your input captions, if present. Within your job settings, all of your DVB-Sub settings must be identical.
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
Auto
Black
Blue
Green
Hex
Red
White
Yellow
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 DvbSubtitleFontColor
impl DvbSubtitleFontColor
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 DvbSubtitleFontColor
impl AsRef<str> for DvbSubtitleFontColor
source§impl Clone for DvbSubtitleFontColor
impl Clone for DvbSubtitleFontColor
source§fn clone(&self) -> DvbSubtitleFontColor
fn clone(&self) -> DvbSubtitleFontColor
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for DvbSubtitleFontColor
impl Debug for DvbSubtitleFontColor
source§impl Display for DvbSubtitleFontColor
impl Display for DvbSubtitleFontColor
source§impl From<&str> for DvbSubtitleFontColor
impl From<&str> for DvbSubtitleFontColor
source§impl FromStr for DvbSubtitleFontColor
impl FromStr for DvbSubtitleFontColor
source§impl Hash for DvbSubtitleFontColor
impl Hash for DvbSubtitleFontColor
source§impl Ord for DvbSubtitleFontColor
impl Ord for DvbSubtitleFontColor
source§fn cmp(&self, other: &DvbSubtitleFontColor) -> Ordering
fn cmp(&self, other: &DvbSubtitleFontColor) -> 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 DvbSubtitleFontColor
impl PartialEq for DvbSubtitleFontColor
source§fn eq(&self, other: &DvbSubtitleFontColor) -> bool
fn eq(&self, other: &DvbSubtitleFontColor) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for DvbSubtitleFontColor
impl PartialOrd for DvbSubtitleFontColor
source§fn partial_cmp(&self, other: &DvbSubtitleFontColor) -> Option<Ordering>
fn partial_cmp(&self, other: &DvbSubtitleFontColor) -> 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 DvbSubtitleFontColor
impl StructuralPartialEq for DvbSubtitleFontColor
Auto Trait Implementations§
impl Freeze for DvbSubtitleFontColor
impl RefUnwindSafe for DvbSubtitleFontColor
impl Send for DvbSubtitleFontColor
impl Sync for DvbSubtitleFontColor
impl Unpin for DvbSubtitleFontColor
impl UnwindSafe for DvbSubtitleFontColor
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