Trait Len 

pub trait Len {
    const LEN: usize;

    // Required method
    fn len(&self) -> usize;
}

Indicate the amount of the tuple’s fields.

Required Associated Constants

const LEN: usize

Required Methods

fn len(&self) -> 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.

Implementations on Foreign Types

impl Len for ()

const LEN: usize = 0usize

fn len(&self) -> usize

impl<T0> Len for (T0,)

const LEN: usize = 1usize

fn len(&self) -> usize

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

const LEN: usize = 2usize

fn len(&self) -> usize

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

const LEN: usize = 3usize

fn len(&self) -> usize

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

const LEN: usize = 4usize

fn len(&self) -> usize

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

const LEN: usize = 5usize

fn len(&self) -> usize

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

const LEN: usize = 6usize

fn len(&self) -> usize

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

const LEN: usize = 7usize

fn len(&self) -> usize

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

const LEN: usize = 8usize

fn len(&self) -> usize

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8> Len for (T0, T1, T2, T3, T4, T5, T6, T7, T8)

const LEN: usize = 9usize

fn len(&self) -> usize

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9> Len for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9)

const LEN: usize = 10usize

fn len(&self) -> usize

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> Len for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10)

const LEN: usize = 11usize

fn len(&self) -> usize

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11> Len for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11)

const LEN: usize = 12usize

fn len(&self) -> usize

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12> Len for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12)

const LEN: usize = 13usize

fn len(&self) -> usize

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13> Len for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13)

const LEN: usize = 14usize

fn len(&self) -> usize

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14> Len for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14)

const LEN: usize = 15usize

fn len(&self) -> usize

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15> Len for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15)

const LEN: usize = 16usize

fn len(&self) -> usize

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16> Len for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16)

const LEN: usize = 17usize

fn len(&self) -> usize

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17> Len for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17)

const LEN: usize = 18usize

fn len(&self) -> usize

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18> Len for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18)

const LEN: usize = 19usize

fn len(&self) -> usize

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19> Len for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19)

const LEN: usize = 20usize

fn len(&self) -> usize

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20> Len for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20)

const LEN: usize = 21usize

fn len(&self) -> usize

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21> Len for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21)

const LEN: usize = 22usize

fn len(&self) -> usize

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22> Len for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22)

const LEN: usize = 23usize

fn len(&self) -> usize

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23> Len for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23)

const LEN: usize = 24usize

fn len(&self) -> usize

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24> Len for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24)

const LEN: usize = 25usize

fn len(&self) -> usize

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25> Len for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25)

const LEN: usize = 26usize

fn len(&self) -> usize

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25, T26> Len for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25, T26)

const LEN: usize = 27usize

fn len(&self) -> usize

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27> Len for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27)

const LEN: usize = 28usize

fn len(&self) -> usize

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27, T28> Len for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27, T28)

const LEN: usize = 29usize

fn len(&self) -> usize

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27, T28, T29> Len for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27, T28, T29)

const LEN: usize = 30usize

fn len(&self) -> usize

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27, T28, T29, T30> Len for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27, T28, T29, T30)

const LEN: usize = 31usize

fn len(&self) -> usize

impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27, T28, T29, T30, T31> Len for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27, T28, T29, T30, T31)

const LEN: usize = 32usize

fn len(&self) -> usize

impl<T> Len for [T; 0]

const LEN: usize = 0usize

fn len(&self) -> usize

impl<T> Len for [T; 1]

const LEN: usize = 1usize

fn len(&self) -> usize

impl<T> Len for [T; 2]

const LEN: usize = 2usize

fn len(&self) -> usize

impl<T> Len for [T; 3]

const LEN: usize = 3usize

fn len(&self) -> usize

impl<T> Len for [T; 4]

const LEN: usize = 4usize

fn len(&self) -> usize

impl<T> Len for [T; 5]

const LEN: usize = 5usize

fn len(&self) -> usize

impl<T> Len for [T; 6]

const LEN: usize = 6usize

fn len(&self) -> usize

impl<T> Len for [T; 7]

const LEN: usize = 7usize

fn len(&self) -> usize

impl<T> Len for [T; 8]

const LEN: usize = 8usize

fn len(&self) -> usize

impl<T> Len for [T; 9]

const LEN: usize = 9usize

fn len(&self) -> usize

impl<T> Len for [T; 10]

const LEN: usize = 10usize

fn len(&self) -> usize

impl<T> Len for [T; 11]

const LEN: usize = 11usize

fn len(&self) -> usize

impl<T> Len for [T; 12]

const LEN: usize = 12usize

fn len(&self) -> usize

impl<T> Len for [T; 13]

const LEN: usize = 13usize

fn len(&self) -> usize

impl<T> Len for [T; 14]

const LEN: usize = 14usize

fn len(&self) -> usize

impl<T> Len for [T; 15]

const LEN: usize = 15usize

fn len(&self) -> usize

impl<T> Len for [T; 16]

const LEN: usize = 16usize

fn len(&self) -> usize

impl<T> Len for [T; 17]

const LEN: usize = 17usize

fn len(&self) -> usize

impl<T> Len for [T; 18]

const LEN: usize = 18usize

fn len(&self) -> usize

impl<T> Len for [T; 19]

const LEN: usize = 19usize

fn len(&self) -> usize

impl<T> Len for [T; 20]

const LEN: usize = 20usize

fn len(&self) -> usize

impl<T> Len for [T; 21]

const LEN: usize = 21usize

fn len(&self) -> usize

impl<T> Len for [T; 22]

const LEN: usize = 22usize

fn len(&self) -> usize

impl<T> Len for [T; 23]

const LEN: usize = 23usize

fn len(&self) -> usize

impl<T> Len for [T; 24]

const LEN: usize = 24usize

fn len(&self) -> usize

impl<T> Len for [T; 25]

const LEN: usize = 25usize

fn len(&self) -> usize

impl<T> Len for [T; 26]

const LEN: usize = 26usize

fn len(&self) -> usize

impl<T> Len for [T; 27]

const LEN: usize = 27usize

fn len(&self) -> usize

impl<T> Len for [T; 28]

const LEN: usize = 28usize

fn len(&self) -> usize

impl<T> Len for [T; 29]

const LEN: usize = 29usize

fn len(&self) -> usize

impl<T> Len for [T; 30]

const LEN: usize = 30usize

fn len(&self) -> usize

impl<T> Len for [T; 31]

const LEN: usize = 31usize

fn len(&self) -> usize

impl<T> Len for [T; 32]

const LEN: usize = 32usize

fn len(&self) -> usize

Implementors