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