#[non_exhaustive]
pub enum DescribeEndpointsMode { Default, GetOnly, Unknown(UnknownVariantValue), }
👎Deprecated: DescribeEndpoints and account specific endpoints are no longer required. We recommend that you send your requests directly to the regional endpoint instead.
Expand description

When writing a match expression against DescribeEndpointsMode, 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 describeendpointsmode = unimplemented!();
match describeendpointsmode {
    DescribeEndpointsMode::Default => { /* ... */ },
    DescribeEndpointsMode::GetOnly => { /* ... */ },
    other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
    _ => { /* ... */ },
}

The above code demonstrates that when describeendpointsmode represents NewFeature, the execution path will lead to the second last match arm, even though the enum does not contain a variant DescribeEndpointsMode::NewFeature in the current version of SDK. The reason is that the variable other, created by the @ operator, is bound to DescribeEndpointsMode::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 DescribeEndpointsMode::NewFeature is defined. Specifically, when describeendpointsmode represents NewFeature, the execution path will hit the second last match arm as before by virtue of calling as_str on DescribeEndpointsMode::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. Optional field, defaults to DEFAULT. Specify DEFAULT for this operation to return your endpoints if any exist, or to create an endpoint for you and return it if one doesn’t already exist. Specify GET_ONLY to return your endpoints if any exist, or an empty list if none exist.

Variants (Non-exhaustive)§

This enum is marked as non-exhaustive
Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.
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Default

👎Deprecated: DescribeEndpoints and account specific endpoints are no longer required. We recommend that you send your requests directly to the regional endpoint instead.
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GetOnly

👎Deprecated: DescribeEndpoints and account specific endpoints are no longer required. We recommend that you send your requests directly to the regional endpoint instead.
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Unknown(UnknownVariantValue)

👎Deprecated: Don’t directly match on 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§

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impl DescribeEndpointsMode

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pub fn as_str(&self) -> &str

Returns the &str value of the enum member.

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pub const fn values() -> &'static [&'static str]

Returns all the &str representations of the enum members.

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impl DescribeEndpointsMode

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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§

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impl AsRef<str> for DescribeEndpointsMode

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fn as_ref(&self) -> &str

Converts this type into a shared reference of the (usually inferred) input type.
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impl Clone for DescribeEndpointsMode

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fn clone(&self) -> DescribeEndpointsMode

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for DescribeEndpointsMode

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Display for DescribeEndpointsMode

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl From<&str> for DescribeEndpointsMode

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fn from(s: &str) -> Self

Converts to this type from the input type.
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impl FromStr for DescribeEndpointsMode

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type Err = Infallible

The associated error which can be returned from parsing.
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fn from_str(s: &str) -> Result<Self, <Self as FromStr>::Err>

Parses a string s to return a value of this type. Read more
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impl Hash for DescribeEndpointsMode

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl Ord for DescribeEndpointsMode

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fn cmp(&self, other: &DescribeEndpointsMode) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more
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impl PartialEq for DescribeEndpointsMode

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fn eq(&self, other: &DescribeEndpointsMode) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialOrd for DescribeEndpointsMode

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fn partial_cmp(&self, other: &DescribeEndpointsMode) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl Eq for DescribeEndpointsMode

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impl StructuralPartialEq for DescribeEndpointsMode

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<Q, K> Comparable<K> for Q
where Q: Ord + ?Sized, K: Borrow<Q> + ?Sized,

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fn compare(&self, key: &K) -> Ordering

Compare self to key and return their ordering.
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts 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 more
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where F: FnOnce(&Self) -> bool,

Converts 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
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impl<Unshared, Shared> IntoShared<Shared> for Unshared
where Shared: FromUnshared<Unshared>,

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fn into_shared(self) -> Shared

Creates a shared type from an unshared type.
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impl<T> Same for T

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type Output = T

Should always be Self
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where T: Clone,

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The resulting type after obtaining ownership.
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default fn to_string(&self) -> String

Converts the given value to a String. Read more
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The type returned in the event of a conversion error.
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Performs the conversion.
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type Error = <U as TryFrom<T>>::Error

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Performs the conversion.
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