Trait Count

pub trait Count {
    const COUNT: usize;
}

A trait for getting the number of type arguments in a type.

This is implemented for Or types and tuples.

Examples

use orn::{Count, Or3};

assert_eq!(Or3::<u8, u16, u32>::COUNT, 3);
assert_eq!(<(u8, u16, u32)>::COUNT, 3);

Required Associated Constants

const COUNT: usize

The number of type arguments.

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.

Implementations on Foreign Types

impl Count for ()

const COUNT: usize = 0usize

impl<T0> Count for (T0,)

const COUNT: usize = 1usize

impl<T0, T1> Count for (T0, T1)

const COUNT: usize = 2usize

impl<T0, T1, T2> Count for (T0, T1, T2)

const COUNT: usize = 3usize

impl<T0, T1, T2, T3> Count for (T0, T1, T2, T3)

const COUNT: usize = 4usize

impl<T0, T1, T2, T3, T4> Count for (T0, T1, T2, T3, T4)

const COUNT: usize = 5usize

impl<T0, T1, T2, T3, T4, T5> Count for (T0, T1, T2, T3, T4, T5)

const COUNT: usize = 6usize

impl<T0, T1, T2, T3, T4, T5, T6> Count for (T0, T1, T2, T3, T4, T5, T6)

const COUNT: usize = 7usize

impl<T0, T1, T2, T3, T4, T5, T6, T7> Count for (T0, T1, T2, T3, T4, T5, T6, T7)

const COUNT: usize = 8usize

Implementors

impl Count for orn::or0::Or

const COUNT: usize = 0usize

impl<T0> Count for orn::or1::Or<T0>

const COUNT: usize = 1usize

impl<T0, T1> Count for orn::or2::Or<T0, T1>

const COUNT: usize = 2usize

impl<T0, T1, T2> Count for orn::or3::Or<T0, T1, T2>

const COUNT: usize = 3usize

impl<T0, T1, T2, T3> Count for orn::or4::Or<T0, T1, T2, T3>

const COUNT: usize = 4usize

impl<T0, T1, T2, T3, T4> Count for orn::or5::Or<T0, T1, T2, T3, T4>

const COUNT: usize = 5usize

impl<T0, T1, T2, T3, T4, T5> Count for orn::or6::Or<T0, T1, T2, T3, T4, T5>

const COUNT: usize = 6usize

impl<T0, T1, T2, T3, T4, T5, T6> Count for orn::or7::Or<T0, T1, T2, T3, T4, T5, T6>

const COUNT: usize = 7usize

impl<T0, T1, T2, T3, T4, T5, T6, T7> Count for orn::or8::Or<T0, T1, T2, T3, T4, T5, T6, T7>

const COUNT: usize = 8usize