Trait ConstValue

pub trait ConstValue {
    type Value: Copy;

    const VALUE: Self::Value;
}

A trait that has one associated constant value.

To implement this trait, use use_modtype rather than the derive macro.

Example

use modtype::ConstValue;

#[derive(ConstValue)]
#[modtype(const_value = 17u32)]
enum Const17U32 {}

assert_eq!(Const17U32::VALUE, 17u32);

Required Associated Constants

const VALUE: Self::Value

Required Associated Types

type Value: Copy

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