Trait ToPrev 

pub trait ToPrev: Sized {
    // Required method
    fn get_prev(&self) -> Self;

    // Provided method
    fn switch_to_prev(&mut self) { ... }
}

Trait for enums that can get the previous variant in a circular manner.

Required Methods

fn get_prev(&self) -> Self

Provided Methods

fn switch_to_prev(&mut self)

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors