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