#[non_exhaustive]pub enum AzureBlobAuthenticationType {
Sas,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against AzureBlobAuthenticationType
, 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 azureblobauthenticationtype = unimplemented!();
match azureblobauthenticationtype {
AzureBlobAuthenticationType::Sas => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when azureblobauthenticationtype
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant AzureBlobAuthenticationType::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
AzureBlobAuthenticationType::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 AzureBlobAuthenticationType::NewFeature
is defined.
Specifically, when azureblobauthenticationtype
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on AzureBlobAuthenticationType::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.
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
Sas
Unknown(UnknownVariantValue)
Unknown
contains new variants that have been added since this code was generated.
Implementations§
Trait Implementations§
source§impl AsRef<str> for AzureBlobAuthenticationType
impl AsRef<str> for AzureBlobAuthenticationType
source§impl Clone for AzureBlobAuthenticationType
impl Clone for AzureBlobAuthenticationType
source§fn clone(&self) -> AzureBlobAuthenticationType
fn clone(&self) -> AzureBlobAuthenticationType
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for AzureBlobAuthenticationType
impl Debug for AzureBlobAuthenticationType
source§impl From<&str> for AzureBlobAuthenticationType
impl From<&str> for AzureBlobAuthenticationType
source§impl Hash for AzureBlobAuthenticationType
impl Hash for AzureBlobAuthenticationType
source§impl Ord for AzureBlobAuthenticationType
impl Ord for AzureBlobAuthenticationType
source§fn cmp(&self, other: &AzureBlobAuthenticationType) -> Ordering
fn cmp(&self, other: &AzureBlobAuthenticationType) -> Ordering
1.21.0 · source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere Self: Sized,
source§impl PartialEq<AzureBlobAuthenticationType> for AzureBlobAuthenticationType
impl PartialEq<AzureBlobAuthenticationType> for AzureBlobAuthenticationType
source§fn eq(&self, other: &AzureBlobAuthenticationType) -> bool
fn eq(&self, other: &AzureBlobAuthenticationType) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd<AzureBlobAuthenticationType> for AzureBlobAuthenticationType
impl PartialOrd<AzureBlobAuthenticationType> for AzureBlobAuthenticationType
source§fn partial_cmp(&self, other: &AzureBlobAuthenticationType) -> Option<Ordering>
fn partial_cmp(&self, other: &AzureBlobAuthenticationType) -> 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 AzureBlobAuthenticationType
impl StructuralEq for AzureBlobAuthenticationType
impl StructuralPartialEq for AzureBlobAuthenticationType
Auto Trait Implementations§
impl RefUnwindSafe for AzureBlobAuthenticationType
impl Send for AzureBlobAuthenticationType
impl Sync for AzureBlobAuthenticationType
impl Unpin for AzureBlobAuthenticationType
impl UnwindSafe for AzureBlobAuthenticationType
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> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.