#[non_exhaustive]pub enum HlsSegmentControl {
SegmentedFiles,
SingleFile,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against HlsSegmentControl
, 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 hlssegmentcontrol = unimplemented!();
match hlssegmentcontrol {
HlsSegmentControl::SegmentedFiles => { /* ... */ },
HlsSegmentControl::SingleFile => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when hlssegmentcontrol
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant HlsSegmentControl::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
HlsSegmentControl::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 HlsSegmentControl::NewFeature
is defined.
Specifically, when hlssegmentcontrol
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on HlsSegmentControl::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 set to SINGLE_FILE, emits program as a single media resource (.ts) file, uses #EXT-X-BYTERANGE tags to index segment for playback.
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
SegmentedFiles
SingleFile
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 HlsSegmentControl
impl HlsSegmentControl
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 HlsSegmentControl
impl AsRef<str> for HlsSegmentControl
source§impl Clone for HlsSegmentControl
impl Clone for HlsSegmentControl
source§fn clone(&self) -> HlsSegmentControl
fn clone(&self) -> HlsSegmentControl
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for HlsSegmentControl
impl Debug for HlsSegmentControl
source§impl Display for HlsSegmentControl
impl Display for HlsSegmentControl
source§impl From<&str> for HlsSegmentControl
impl From<&str> for HlsSegmentControl
source§impl FromStr for HlsSegmentControl
impl FromStr for HlsSegmentControl
source§impl Hash for HlsSegmentControl
impl Hash for HlsSegmentControl
source§impl Ord for HlsSegmentControl
impl Ord for HlsSegmentControl
source§fn cmp(&self, other: &HlsSegmentControl) -> Ordering
fn cmp(&self, other: &HlsSegmentControl) -> 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 HlsSegmentControl
impl PartialEq for HlsSegmentControl
source§fn eq(&self, other: &HlsSegmentControl) -> bool
fn eq(&self, other: &HlsSegmentControl) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for HlsSegmentControl
impl PartialOrd for HlsSegmentControl
source§fn partial_cmp(&self, other: &HlsSegmentControl) -> Option<Ordering>
fn partial_cmp(&self, other: &HlsSegmentControl) -> 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 HlsSegmentControl
impl StructuralPartialEq for HlsSegmentControl
Auto Trait Implementations§
impl Freeze for HlsSegmentControl
impl RefUnwindSafe for HlsSegmentControl
impl Send for HlsSegmentControl
impl Sync for HlsSegmentControl
impl Unpin for HlsSegmentControl
impl UnwindSafe for HlsSegmentControl
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