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// Code generated by software.amazon.smithy.rust.codegen.smithy-rs. DO NOT EDIT.
/// When writing a match expression against `Signal`, 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 signal = unimplemented!();
/// match signal {
/// Signal::Config => { /* ... */ },
/// Signal::Logs => { /* ... */ },
/// Signal::Metrics => { /* ... */ },
/// Signal::Traces => { /* ... */ },
/// Signal::UnknownValue => { /* ... */ },
/// other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
/// _ => { /* ... */ },
/// }
/// ```
/// The above code demonstrates that when `signal` represents
/// `NewFeature`, the execution path will lead to the second last match arm,
/// even though the enum does not contain a variant `Signal::NewFeature`
/// in the current version of SDK. The reason is that the variable `other`,
/// created by the `@` operator, is bound to
/// `Signal::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 `Signal::NewFeature` is defined.
/// Specifically, when `signal` represents `NewFeature`,
/// the execution path will hit the second last match arm as before by virtue of
/// calling `as_str` on `Signal::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.
///
/// Signal enum for context graph queries.
///
/// _Note: `Signal::Unknown` has been renamed to `::UnknownValue`._
#[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 Signal {
#[allow(missing_docs)] // documentation missing in model
Config,
#[allow(missing_docs)] // documentation missing in model
Logs,
#[allow(missing_docs)] // documentation missing in model
Metrics,
#[allow(missing_docs)] // documentation missing in model
Traces,
///
/// _Note: `::Unknown` has been renamed to `::UnknownValue`._
UnknownValue,
/// `Unknown` contains new variants that have been added since this code was generated.
#[deprecated(note = "Don't directly match on `Unknown`. See the docs on this enum for the correct way to handle unknown variants.")]
Unknown(crate::primitives::sealed_enum_unknown::UnknownVariantValue),
}
impl ::std::convert::From<&str> for Signal {
fn from(s: &str) -> Self {
match s {
"CONFIG" => Signal::Config,
"LOGS" => Signal::Logs,
"METRICS" => Signal::Metrics,
"TRACES" => Signal::Traces,
"UNKNOWN" => Signal::UnknownValue,
other => Signal::Unknown(crate::primitives::sealed_enum_unknown::UnknownVariantValue(other.to_owned())),
}
}
}
impl ::std::str::FromStr for Signal {
type Err = ::std::convert::Infallible;
fn from_str(s: &str) -> ::std::result::Result<Self, <Self as ::std::str::FromStr>::Err> {
::std::result::Result::Ok(Signal::from(s))
}
}
impl Signal {
/// Returns the `&str` value of the enum member.
pub fn as_str(&self) -> &str {
match self {
Signal::Config => "CONFIG",
Signal::Logs => "LOGS",
Signal::Metrics => "METRICS",
Signal::Traces => "TRACES",
Signal::UnknownValue => "UNKNOWN",
Signal::Unknown(value) => value.as_str(),
}
}
/// Returns all the `&str` representations of the enum members.
pub const fn values() -> &'static [&'static str] {
&["CONFIG", "LOGS", "METRICS", "TRACES", "UNKNOWN"]
}
}
impl ::std::convert::AsRef<str> for Signal {
fn as_ref(&self) -> &str {
self.as_str()
}
}
impl Signal {
/// Parses the enum value while disallowing unknown variants.
///
/// Unknown variants will result in an error.
pub fn try_parse(value: &str) -> ::std::result::Result<Self, crate::error::UnknownVariantError> {
match Self::from(value) {
#[allow(deprecated)]
Self::Unknown(_) => ::std::result::Result::Err(crate::error::UnknownVariantError::new(value)),
known => Ok(known),
}
}
}
impl ::std::fmt::Display for Signal {
fn fmt(&self, f: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
match self {
Signal::Config => write!(f, "CONFIG"),
Signal::Logs => write!(f, "LOGS"),
Signal::Metrics => write!(f, "METRICS"),
Signal::Traces => write!(f, "TRACES"),
Signal::UnknownValue => write!(f, "UNKNOWN"),
Signal::Unknown(value) => write!(f, "{value}"),
}
}
}