Enum aws_sdk_lexmodelsv2::model::IntentFilterName

#[non_exhaustive]
pub enum IntentFilterName {
    IntentName,
    Unknown(UnknownVariantValue),
}

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

The above code demonstrates that when intentfiltername represents NewFeature, the execution path will lead to the second last match arm, even though the enum does not contain a variant IntentFilterName::NewFeature in the current version of SDK. The reason is that the variable other, created by the @ operator, is bound to IntentFilterName::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 IntentFilterName::NewFeature is defined. Specifically, when intentfiltername represents NewFeature, the execution path will hit the second last match arm as before by virtue of calling as_str on IntentFilterName::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)

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.

IntentName

Unknown(UnknownVariantValue)

Unknown contains new variants that have been added since this code was generated.

Implementations

impl IntentFilterName

pub fn as_str(&self) -> &str

Returns the &str value of the enum member.

Examples found in repository

src/model.rs (line 12496)

    fn as_ref(&self) -> &str {
        self.as_str()
    }

src/json_ser.rs (line 2293)

pub fn serialize_structure_crate_model_intent_filter(
    object: &mut aws_smithy_json::serialize::JsonObjectWriter,
    input: &crate::model::IntentFilter,
) -> Result<(), aws_smithy_http::operation::error::SerializationError> {
    if let Some(var_461) = &input.name {
        object.key("name").string(var_461.as_str());
    }
    if let Some(var_462) = &input.values {
        let mut array_463 = object.key("values").start_array();
        for item_464 in var_462 {
            {
                array_463.value().string(item_464.as_str());
            }
        }
        array_463.finish();
    }
    if let Some(var_465) = &input.operator {
        object.key("operator").string(var_465.as_str());
    }
    Ok(())
}

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

Returns all the &str values of the enum members.

Trait Implementations

impl AsRef<str> for IntentFilterName

fn as_ref(&self) -> &str

Converts this type into a shared reference of the (usually inferred) input type.

impl Clone for IntentFilterName

fn clone(&self) -> IntentFilterName

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for IntentFilterName

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

Formats the value using the given formatter.

impl From<&str> for IntentFilterName

fn from(s: &str) -> Self

Converts to this type from the input type.

impl FromStr for IntentFilterName

type Err = Infallible

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for IntentFilterName

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

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where
    H: Hasher,
    Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for IntentFilterName

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

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Selfwhere
    Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Selfwhere
    Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere
    Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl PartialEq<IntentFilterName> for IntentFilterName

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

This method tests for self and other values to be equal, and is used by ==.

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.

impl PartialOrd<IntentFilterName> for IntentFilterName

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

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

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

impl Eq for IntentFilterName

impl StructuralEq for IntentFilterName

impl StructuralPartialEq for IntentFilterName