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// Code generated by software.amazon.smithy.rust.codegen.smithy-rs. DO NOT EDIT.

/// When writing a match expression against `EntityType`, 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 entitytype = unimplemented!();
/// match entitytype {
///     EntityType::ColumnHeader => { /* ... */ },
///     EntityType::Key => { /* ... */ },
///     EntityType::SemiStructuredTable => { /* ... */ },
///     EntityType::StructuredTable => { /* ... */ },
///     EntityType::TableFooter => { /* ... */ },
///     EntityType::TableSectionTitle => { /* ... */ },
///     EntityType::TableSummary => { /* ... */ },
///     EntityType::TableTitle => { /* ... */ },
///     EntityType::Value => { /* ... */ },
///     other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
///     _ => { /* ... */ },
/// }
/// ```
/// The above code demonstrates that when `entitytype` represents
/// `NewFeature`, the execution path will lead to the second last match arm,
/// even though the enum does not contain a variant `EntityType::NewFeature`
/// in the current version of SDK. The reason is that the variable `other`,
/// created by the `@` operator, is bound to
/// `EntityType::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 `EntityType::NewFeature` is defined.
/// Specifically, when `entitytype` represents `NewFeature`,
/// the execution path will hit the second last match arm as before by virtue of
/// calling `as_str` on `EntityType::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 EntityType {
    #[allow(missing_docs)] // documentation missing in model
    ColumnHeader,
    #[allow(missing_docs)] // documentation missing in model
    Key,
    #[allow(missing_docs)] // documentation missing in model
    SemiStructuredTable,
    #[allow(missing_docs)] // documentation missing in model
    StructuredTable,
    #[allow(missing_docs)] // documentation missing in model
    TableFooter,
    #[allow(missing_docs)] // documentation missing in model
    TableSectionTitle,
    #[allow(missing_docs)] // documentation missing in model
    TableSummary,
    #[allow(missing_docs)] // documentation missing in model
    TableTitle,
    #[allow(missing_docs)] // documentation missing in model
    Value,
    /// `Unknown` contains new variants that have been added since this code was generated.
    Unknown(crate::primitives::UnknownVariantValue),
}
impl ::std::convert::From<&str> for EntityType {
    fn from(s: &str) -> Self {
        match s {
            "COLUMN_HEADER" => EntityType::ColumnHeader,
            "KEY" => EntityType::Key,
            "SEMI_STRUCTURED_TABLE" => EntityType::SemiStructuredTable,
            "STRUCTURED_TABLE" => EntityType::StructuredTable,
            "TABLE_FOOTER" => EntityType::TableFooter,
            "TABLE_SECTION_TITLE" => EntityType::TableSectionTitle,
            "TABLE_SUMMARY" => EntityType::TableSummary,
            "TABLE_TITLE" => EntityType::TableTitle,
            "VALUE" => EntityType::Value,
            other => EntityType::Unknown(crate::primitives::UnknownVariantValue(other.to_owned())),
        }
    }
}
impl ::std::str::FromStr for EntityType {
    type Err = ::std::convert::Infallible;

    fn from_str(s: &str) -> ::std::result::Result<Self, <Self as ::std::str::FromStr>::Err> {
        ::std::result::Result::Ok(EntityType::from(s))
    }
}
impl EntityType {
    /// Returns the `&str` value of the enum member.
    pub fn as_str(&self) -> &str {
        match self {
            EntityType::ColumnHeader => "COLUMN_HEADER",
            EntityType::Key => "KEY",
            EntityType::SemiStructuredTable => "SEMI_STRUCTURED_TABLE",
            EntityType::StructuredTable => "STRUCTURED_TABLE",
            EntityType::TableFooter => "TABLE_FOOTER",
            EntityType::TableSectionTitle => "TABLE_SECTION_TITLE",
            EntityType::TableSummary => "TABLE_SUMMARY",
            EntityType::TableTitle => "TABLE_TITLE",
            EntityType::Value => "VALUE",
            EntityType::Unknown(value) => value.as_str(),
        }
    }
    /// Returns all the `&str` representations of the enum members.
    pub const fn values() -> &'static [&'static str] {
        &[
            "COLUMN_HEADER",
            "KEY",
            "SEMI_STRUCTURED_TABLE",
            "STRUCTURED_TABLE",
            "TABLE_FOOTER",
            "TABLE_SECTION_TITLE",
            "TABLE_SUMMARY",
            "TABLE_TITLE",
            "VALUE",
        ]
    }
}
impl ::std::convert::AsRef<str> for EntityType {
    fn as_ref(&self) -> &str {
        self.as_str()
    }
}