aws-sdk-migrationhubstrategy 0.25.0

AWS SDK for Migration Hub Strategy Recommendations
Documentation
// Code generated by software.amazon.smithy.rust.codegen.smithy-rs. DO NOT EDIT.

/// When writing a match expression against `Strategy`, 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:
///
/// ```text
/// # let strategy = unimplemented!();
/// match strategy {
///     Strategy::Refactor => { /* ... */ },
///     Strategy::Rehost => { /* ... */ },
///     Strategy::Relocate => { /* ... */ },
///     Strategy::Replatform => { /* ... */ },
///     Strategy::Repurchase => { /* ... */ },
///     Strategy::Retain => { /* ... */ },
///     Strategy::Retirement => { /* ... */ },
///     other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
///     _ => { /* ... */ },
/// }
/// ```
/// The above code demonstrates that when `strategy` represents
/// `NewFeature`, the execution path will lead to the second last match arm,
/// even though the enum does not contain a variant `Strategy::NewFeature`
/// in the current version of SDK. The reason is that the variable `other`,
/// created by the `@` operator, is bound to
/// `Strategy::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 `Strategy::NewFeature` is defined.
/// Specifically, when `strategy` represents `NewFeature`,
/// the execution path will hit the second last match arm as before by virtue of
/// calling `as_str` on `Strategy::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.
#[allow(missing_docs)] // documentation missing in model
#[non_exhaustive]
#[derive(
    std::clone::Clone,
    std::cmp::Eq,
    std::cmp::Ord,
    std::cmp::PartialEq,
    std::cmp::PartialOrd,
    std::fmt::Debug,
    std::hash::Hash,
)]
pub enum Strategy {
    #[allow(missing_docs)] // documentation missing in model
    Refactor,
    #[allow(missing_docs)] // documentation missing in model
    Rehost,
    #[allow(missing_docs)] // documentation missing in model
    Relocate,
    #[allow(missing_docs)] // documentation missing in model
    Replatform,
    #[allow(missing_docs)] // documentation missing in model
    Repurchase,
    #[allow(missing_docs)] // documentation missing in model
    Retain,
    #[allow(missing_docs)] // documentation missing in model
    Retirement,
    /// `Unknown` contains new variants that have been added since this code was generated.
    Unknown(crate::primitives::UnknownVariantValue),
}
impl std::convert::From<&str> for Strategy {
    fn from(s: &str) -> Self {
        match s {
            "Refactor" => Strategy::Refactor,
            "Rehost" => Strategy::Rehost,
            "Relocate" => Strategy::Relocate,
            "Replatform" => Strategy::Replatform,
            "Repurchase" => Strategy::Repurchase,
            "Retain" => Strategy::Retain,
            "Retirement" => Strategy::Retirement,
            other => Strategy::Unknown(crate::primitives::UnknownVariantValue(other.to_owned())),
        }
    }
}
impl std::str::FromStr for Strategy {
    type Err = std::convert::Infallible;

    fn from_str(s: &str) -> std::result::Result<Self, Self::Err> {
        Ok(Strategy::from(s))
    }
}
impl Strategy {
    /// Returns the `&str` value of the enum member.
    pub fn as_str(&self) -> &str {
        match self {
            Strategy::Refactor => "Refactor",
            Strategy::Rehost => "Rehost",
            Strategy::Relocate => "Relocate",
            Strategy::Replatform => "Replatform",
            Strategy::Repurchase => "Repurchase",
            Strategy::Retain => "Retain",
            Strategy::Retirement => "Retirement",
            Strategy::Unknown(value) => value.as_str(),
        }
    }
    /// Returns all the `&str` representations of the enum members.
    pub const fn values() -> &'static [&'static str] {
        &[
            "Refactor",
            "Rehost",
            "Relocate",
            "Replatform",
            "Repurchase",
            "Retain",
            "Retirement",
        ]
    }
}
impl AsRef<str> for Strategy {
    fn as_ref(&self) -> &str {
        self.as_str()
    }
}