Enum aws_sdk_lambda::types::FunctionUrlAuthType
source · #[non_exhaustive]pub enum FunctionUrlAuthType {
AwsIam,
None,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against FunctionUrlAuthType
, 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 functionurlauthtype = unimplemented!();
match functionurlauthtype {
FunctionUrlAuthType::AwsIam => { /* ... */ },
FunctionUrlAuthType::None => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when functionurlauthtype
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant FunctionUrlAuthType::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
FunctionUrlAuthType::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 FunctionUrlAuthType::NewFeature
is defined.
Specifically, when functionurlauthtype
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on FunctionUrlAuthType::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
AwsIam
None
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 FunctionUrlAuthType
impl FunctionUrlAuthType
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 FunctionUrlAuthType
impl AsRef<str> for FunctionUrlAuthType
source§impl Clone for FunctionUrlAuthType
impl Clone for FunctionUrlAuthType
source§fn clone(&self) -> FunctionUrlAuthType
fn clone(&self) -> FunctionUrlAuthType
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for FunctionUrlAuthType
impl Debug for FunctionUrlAuthType
source§impl Display for FunctionUrlAuthType
impl Display for FunctionUrlAuthType
source§impl From<&str> for FunctionUrlAuthType
impl From<&str> for FunctionUrlAuthType
source§impl FromStr for FunctionUrlAuthType
impl FromStr for FunctionUrlAuthType
source§impl Hash for FunctionUrlAuthType
impl Hash for FunctionUrlAuthType
source§impl Ord for FunctionUrlAuthType
impl Ord for FunctionUrlAuthType
source§fn cmp(&self, other: &FunctionUrlAuthType) -> Ordering
fn cmp(&self, other: &FunctionUrlAuthType) -> 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 FunctionUrlAuthType
impl PartialEq for FunctionUrlAuthType
source§fn eq(&self, other: &FunctionUrlAuthType) -> bool
fn eq(&self, other: &FunctionUrlAuthType) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for FunctionUrlAuthType
impl PartialOrd for FunctionUrlAuthType
source§fn partial_cmp(&self, other: &FunctionUrlAuthType) -> Option<Ordering>
fn partial_cmp(&self, other: &FunctionUrlAuthType) -> 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 FunctionUrlAuthType
impl StructuralPartialEq for FunctionUrlAuthType
Auto Trait Implementations§
impl Freeze for FunctionUrlAuthType
impl RefUnwindSafe for FunctionUrlAuthType
impl Send for FunctionUrlAuthType
impl Sync for FunctionUrlAuthType
impl Unpin for FunctionUrlAuthType
impl UnwindSafe for FunctionUrlAuthType
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.