#[non_exhaustive]pub enum TextTransformationType {
Show 22 variants
Base64Decode,
Base64DecodeExt,
CmdLine,
CompressWhiteSpace,
CssDecode,
EscapeSeqDecode,
HexDecode,
HtmlEntityDecode,
JsDecode,
Lowercase,
Md5,
None,
NormalizePath,
NormalizePathWin,
RemoveNulls,
ReplaceComments,
ReplaceNulls,
SqlHexDecode,
UrlDecode,
UrlDecodeUni,
Utf8ToUnicode,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against TextTransformationType
, 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 texttransformationtype = unimplemented!();
match texttransformationtype {
TextTransformationType::Base64Decode => { /* ... */ },
TextTransformationType::Base64DecodeExt => { /* ... */ },
TextTransformationType::CmdLine => { /* ... */ },
TextTransformationType::CompressWhiteSpace => { /* ... */ },
TextTransformationType::CssDecode => { /* ... */ },
TextTransformationType::EscapeSeqDecode => { /* ... */ },
TextTransformationType::HexDecode => { /* ... */ },
TextTransformationType::HtmlEntityDecode => { /* ... */ },
TextTransformationType::JsDecode => { /* ... */ },
TextTransformationType::Lowercase => { /* ... */ },
TextTransformationType::Md5 => { /* ... */ },
TextTransformationType::None => { /* ... */ },
TextTransformationType::NormalizePath => { /* ... */ },
TextTransformationType::NormalizePathWin => { /* ... */ },
TextTransformationType::RemoveNulls => { /* ... */ },
TextTransformationType::ReplaceComments => { /* ... */ },
TextTransformationType::ReplaceNulls => { /* ... */ },
TextTransformationType::SqlHexDecode => { /* ... */ },
TextTransformationType::UrlDecode => { /* ... */ },
TextTransformationType::UrlDecodeUni => { /* ... */ },
TextTransformationType::Utf8ToUnicode => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when texttransformationtype
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant TextTransformationType::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
TextTransformationType::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 TextTransformationType::NewFeature
is defined.
Specifically, when texttransformationtype
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on TextTransformationType::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
Base64Decode
Base64DecodeExt
CmdLine
CompressWhiteSpace
CssDecode
EscapeSeqDecode
HexDecode
HtmlEntityDecode
JsDecode
Lowercase
Md5
None
NormalizePath
NormalizePathWin
RemoveNulls
ReplaceComments
ReplaceNulls
SqlHexDecode
UrlDecode
UrlDecodeUni
Utf8ToUnicode
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 TextTransformationType
impl TextTransformationType
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 TextTransformationType
impl AsRef<str> for TextTransformationType
source§impl Clone for TextTransformationType
impl Clone for TextTransformationType
source§fn clone(&self) -> TextTransformationType
fn clone(&self) -> TextTransformationType
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for TextTransformationType
impl Debug for TextTransformationType
source§impl Display for TextTransformationType
impl Display for TextTransformationType
source§impl From<&str> for TextTransformationType
impl From<&str> for TextTransformationType
source§impl FromStr for TextTransformationType
impl FromStr for TextTransformationType
source§impl Hash for TextTransformationType
impl Hash for TextTransformationType
source§impl Ord for TextTransformationType
impl Ord for TextTransformationType
source§fn cmp(&self, other: &TextTransformationType) -> Ordering
fn cmp(&self, other: &TextTransformationType) -> 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 TextTransformationType
impl PartialEq for TextTransformationType
source§fn eq(&self, other: &TextTransformationType) -> bool
fn eq(&self, other: &TextTransformationType) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for TextTransformationType
impl PartialOrd for TextTransformationType
source§fn partial_cmp(&self, other: &TextTransformationType) -> Option<Ordering>
fn partial_cmp(&self, other: &TextTransformationType) -> 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 TextTransformationType
impl StructuralPartialEq for TextTransformationType
Auto Trait Implementations§
impl Freeze for TextTransformationType
impl RefUnwindSafe for TextTransformationType
impl Send for TextTransformationType
impl Sync for TextTransformationType
impl Unpin for TextTransformationType
impl UnwindSafe for TextTransformationType
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