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#[cfg(feature = "nightly")]
#[doc(inline)]
pub use std::ops::GeneratorState;

#[cfg(not(feature = "nightly"))]
/// Stable version of `std::generator::GeneratorState`
///
/// The result of a generator resumption.
///
/// This enum is returned from the `Generator::resume` method and indicates the
/// possible return values of a generator. Currently this corresponds to either
/// a suspension point (`Yielded`) or a termination point (`Complete`).
#[derive(Clone, Copy, PartialEq, PartialOrd, Eq, Ord, Debug, Hash)]
pub enum GeneratorState<Y, R> {
    /// The generator suspended with a value.
    ///
    /// This state indicates that a generator has been suspended, and typically
    /// corresponds to a `yield` statement. The value provided in this variant
    /// corresponds to the expression passed to `yield` and allows generators to
    /// provide a value each time they yield.
    Yielded(Y),

    /// The generator completed with a return value.
    ///
    /// This state indicates that a generator has finished execution with the
    /// provided value. Once a generator has returned `Complete` it is
    /// considered a programmer error to call `resume` again.
    Complete(R),
}