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 = 0

fn len(&self) -> usize

impl<T0> Len for (T0,)

const LEN: usize = 1

fn len(&self) -> usize

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

const LEN: usize = $len

fn len(&self) -> usize

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

const LEN: usize = $len

fn len(&self) -> usize

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

const LEN: usize = $len

fn len(&self) -> usize

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

const LEN: usize = $len

fn len(&self) -> usize

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

const LEN: usize = $len

fn len(&self) -> usize

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

const LEN: usize = $len

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 = $len

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 = $len

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 = $len

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 = $len

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 = $len

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 = $len

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 = $len

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 = $len

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 = $len

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 = $len

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 = $len

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 = $len

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 = $len

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 = $len

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 = $len

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 = $len

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 = $len

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 = $len

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 = $len

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 = $len

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 = $len

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 = $len

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 = $len

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 = $len

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 = $len

fn len(&self) -> usize

impl<T> Len for [T; 0]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 1]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 2]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 3]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 4]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 5]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 6]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 7]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 8]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 9]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 10]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 11]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 12]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 13]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 14]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 15]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 16]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 17]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 18]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 19]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 20]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 21]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 22]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 23]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 24]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 25]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 26]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 27]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 28]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 29]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 30]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 31]

const LEN: usize = $len

fn len(&self) -> usize

impl<T> Len for [T; 32]

const LEN: usize = $len

fn len(&self) -> usize

Implementors