#[non_exhaustive]pub enum PlayerSessionStatus {
Active,
Completed,
Reserved,
Timedout,
Unknown(UnknownVariantValue),
}Expand description
When writing a match expression against PlayerSessionStatus, 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 playersessionstatus = unimplemented!();
match playersessionstatus {
PlayerSessionStatus::Active => { /* ... */ },
PlayerSessionStatus::Completed => { /* ... */ },
PlayerSessionStatus::Reserved => { /* ... */ },
PlayerSessionStatus::Timedout => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when playersessionstatus represents
NewFeature, the execution path will lead to the second last match arm,
even though the enum does not contain a variant PlayerSessionStatus::NewFeature
in the current version of SDK. The reason is that the variable other,
created by the @ operator, is bound to
PlayerSessionStatus::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 PlayerSessionStatus::NewFeature is defined.
Specifically, when playersessionstatus represents NewFeature,
the execution path will hit the second last match arm as before by virtue of
calling as_str on PlayerSessionStatus::NewFeature also yielding "NewFeature".
Explicitly matching on the Unknown variant should
be avoided for two reasons:
- The inner data
UnknownVariantValueis opaque, and no further information can be extracted. - It might inadvertently shadow other intended match arms.
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
Active
Completed
Reserved
Timedout
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 PlayerSessionStatus
impl PlayerSessionStatus
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 PlayerSessionStatus
impl AsRef<str> for PlayerSessionStatus
source§impl Clone for PlayerSessionStatus
impl Clone for PlayerSessionStatus
source§fn clone(&self) -> PlayerSessionStatus
fn clone(&self) -> PlayerSessionStatus
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source. Read moresource§impl Debug for PlayerSessionStatus
impl Debug for PlayerSessionStatus
source§impl Display for PlayerSessionStatus
impl Display for PlayerSessionStatus
source§impl From<&str> for PlayerSessionStatus
impl From<&str> for PlayerSessionStatus
source§impl FromStr for PlayerSessionStatus
impl FromStr for PlayerSessionStatus
source§impl Hash for PlayerSessionStatus
impl Hash for PlayerSessionStatus
source§impl Ord for PlayerSessionStatus
impl Ord for PlayerSessionStatus
source§fn cmp(&self, other: &PlayerSessionStatus) -> Ordering
fn cmp(&self, other: &PlayerSessionStatus) -> 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 PlayerSessionStatus
impl PartialEq for PlayerSessionStatus
source§fn eq(&self, other: &PlayerSessionStatus) -> bool
fn eq(&self, other: &PlayerSessionStatus) -> bool
self and other values to be equal, and is used
by ==.source§impl PartialOrd for PlayerSessionStatus
impl PartialOrd for PlayerSessionStatus
source§fn partial_cmp(&self, other: &PlayerSessionStatus) -> Option<Ordering>
fn partial_cmp(&self, other: &PlayerSessionStatus) -> 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 PlayerSessionStatus
impl StructuralPartialEq for PlayerSessionStatus
Auto Trait Implementations§
impl Freeze for PlayerSessionStatus
impl RefUnwindSafe for PlayerSessionStatus
impl Send for PlayerSessionStatus
impl Sync for PlayerSessionStatus
impl Unpin for PlayerSessionStatus
impl UnwindSafe for PlayerSessionStatus
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