Trait SumLen 

pub trait SumLen {
    // Required method
    fn sum_len() -> usize;
}

Count the number of variants in a sum chain.

Required Methods

fn sum_len() -> usize

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

impl SumLen for Void

impl<L, R: SumLen> SumLen for Sum<L, R>