Trait Variance 

pub trait Variance {
    type ReturnOperand;

    // Required method
    fn var(&self) -> Self::ReturnOperand;
}

Required Associated Types

type ReturnOperand

Required Methods

fn var(&self) -> Self::ReturnOperand

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<O: Apply<VarianceOperation>> Variance for O

type ReturnOperand = <O as Apply<VarianceOperation>>::Output