Enum aws_sdk_sagemaker::types::TableFormat
source · #[non_exhaustive]pub enum TableFormat {
Default,
Glue,
Iceberg,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against TableFormat
, 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 tableformat = unimplemented!();
match tableformat {
TableFormat::Default => { /* ... */ },
TableFormat::Glue => { /* ... */ },
TableFormat::Iceberg => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when tableformat
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant TableFormat::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
TableFormat::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 TableFormat::NewFeature
is defined.
Specifically, when tableformat
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on TableFormat::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
Default
Glue
Iceberg
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 TableFormat
impl TableFormat
source§impl TableFormat
impl TableFormat
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 TableFormat
impl AsRef<str> for TableFormat
source§impl Clone for TableFormat
impl Clone for TableFormat
source§fn clone(&self) -> TableFormat
fn clone(&self) -> TableFormat
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for TableFormat
impl Debug for TableFormat
source§impl Display for TableFormat
impl Display for TableFormat
source§impl From<&str> for TableFormat
impl From<&str> for TableFormat
source§impl FromStr for TableFormat
impl FromStr for TableFormat
source§impl Hash for TableFormat
impl Hash for TableFormat
source§impl Ord for TableFormat
impl Ord for TableFormat
source§fn cmp(&self, other: &TableFormat) -> Ordering
fn cmp(&self, other: &TableFormat) -> 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 TableFormat
impl PartialEq for TableFormat
source§impl PartialOrd for TableFormat
impl PartialOrd for TableFormat
impl Eq for TableFormat
impl StructuralPartialEq for TableFormat
Auto Trait Implementations§
impl Freeze for TableFormat
impl RefUnwindSafe for TableFormat
impl Send for TableFormat
impl Sync for TableFormat
impl Unpin for TableFormat
impl UnwindSafe for TableFormat
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<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§default unsafe fn clone_to_uninit(&self, dst: *mut T)
default unsafe fn clone_to_uninit(&self, dst: *mut T)
clone_to_uninit
)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