Trait DecodeLength

pub trait DecodeLength {
    // Required method
    fn len(self_encoded: &[u8]) -> Result<usize, Error>;
}

Trait that allows the length of a collection to be read, without having to read and decode the entire elements.

Required Methods

fn len(self_encoded: &[u8]) -> Result<usize, Error>

Return the number of elements in self_encoded.

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<A0: DecodeLength, B0, C0, D0, E0, F0, G0, H0, I0, J0, K0, L0, M0, N0, O0, P0, Q0, R0> DecodeLength for (A0, B0, C0, D0, E0, F0, G0, H0, I0, J0, K0, L0, M0, N0, O0, P0, Q0, R0)

fn len(self_encoded: &[u8]) -> Result<usize, Error>

impl<B0: DecodeLength, C0, D0, E0, F0, G0, H0, I0, J0, K0, L0, M0, N0, O0, P0, Q0, R0> DecodeLength for (B0, C0, D0, E0, F0, G0, H0, I0, J0, K0, L0, M0, N0, O0, P0, Q0, R0)

fn len(self_encoded: &[u8]) -> Result<usize, Error>

impl<C0: DecodeLength, D0, E0, F0, G0, H0, I0, J0, K0, L0, M0, N0, O0, P0, Q0, R0> DecodeLength for (C0, D0, E0, F0, G0, H0, I0, J0, K0, L0, M0, N0, O0, P0, Q0, R0)

fn len(self_encoded: &[u8]) -> Result<usize, Error>

impl<D0: DecodeLength, E0, F0, G0, H0, I0, J0, K0, L0, M0, N0, O0, P0, Q0, R0> DecodeLength for (D0, E0, F0, G0, H0, I0, J0, K0, L0, M0, N0, O0, P0, Q0, R0)

fn len(self_encoded: &[u8]) -> Result<usize, Error>

impl<E0: DecodeLength, F0, G0, H0, I0, J0, K0, L0, M0, N0, O0, P0, Q0, R0> DecodeLength for (E0, F0, G0, H0, I0, J0, K0, L0, M0, N0, O0, P0, Q0, R0)

fn len(self_encoded: &[u8]) -> Result<usize, Error>

impl<F0: DecodeLength, G0, H0, I0, J0, K0, L0, M0, N0, O0, P0, Q0, R0> DecodeLength for (F0, G0, H0, I0, J0, K0, L0, M0, N0, O0, P0, Q0, R0)

fn len(self_encoded: &[u8]) -> Result<usize, Error>

impl<G0: DecodeLength, H0, I0, J0, K0, L0, M0, N0, O0, P0, Q0, R0> DecodeLength for (G0, H0, I0, J0, K0, L0, M0, N0, O0, P0, Q0, R0)

fn len(self_encoded: &[u8]) -> Result<usize, Error>

impl<H0: DecodeLength, I0, J0, K0, L0, M0, N0, O0, P0, Q0, R0> DecodeLength for (H0, I0, J0, K0, L0, M0, N0, O0, P0, Q0, R0)

fn len(self_encoded: &[u8]) -> Result<usize, Error>

impl<I0: DecodeLength, J0, K0, L0, M0, N0, O0, P0, Q0, R0> DecodeLength for (I0, J0, K0, L0, M0, N0, O0, P0, Q0, R0)

fn len(self_encoded: &[u8]) -> Result<usize, Error>

impl<J0: DecodeLength, K0, L0, M0, N0, O0, P0, Q0, R0> DecodeLength for (J0, K0, L0, M0, N0, O0, P0, Q0, R0)

fn len(self_encoded: &[u8]) -> Result<usize, Error>

impl<K0: DecodeLength, L0, M0, N0, O0, P0, Q0, R0> DecodeLength for (K0, L0, M0, N0, O0, P0, Q0, R0)

fn len(self_encoded: &[u8]) -> Result<usize, Error>

impl<K, V> DecodeLength for BTreeMap<K, V>

fn len(self_encoded: &[u8]) -> Result<usize, Error>

impl<L0: DecodeLength, M0, N0, O0, P0, Q0, R0> DecodeLength for (L0, M0, N0, O0, P0, Q0, R0)

fn len(self_encoded: &[u8]) -> Result<usize, Error>

impl<M0: DecodeLength, N0, O0, P0, Q0, R0> DecodeLength for (M0, N0, O0, P0, Q0, R0)

fn len(self_encoded: &[u8]) -> Result<usize, Error>

impl<N0: DecodeLength, O0, P0, Q0, R0> DecodeLength for (N0, O0, P0, Q0, R0)

fn len(self_encoded: &[u8]) -> Result<usize, Error>

impl<O0: DecodeLength, P0, Q0, R0> DecodeLength for (O0, P0, Q0, R0)

fn len(self_encoded: &[u8]) -> Result<usize, Error>

impl<P0: DecodeLength, Q0, R0> DecodeLength for (P0, Q0, R0)

fn len(self_encoded: &[u8]) -> Result<usize, Error>

impl<Q0: DecodeLength, R0> DecodeLength for (Q0, R0)

fn len(self_encoded: &[u8]) -> Result<usize, Error>

impl<R0: DecodeLength> DecodeLength for (R0,)

fn len(self_encoded: &[u8]) -> Result<usize, Error>

impl<T> DecodeLength for BinaryHeap<T>

fn len(self_encoded: &[u8]) -> Result<usize, Error>

impl<T> DecodeLength for BTreeSet<T>

fn len(self_encoded: &[u8]) -> Result<usize, Error>

impl<T> DecodeLength for LinkedList<T>

fn len(self_encoded: &[u8]) -> Result<usize, Error>

impl<T> DecodeLength for VecDeque<T>

fn len(self_encoded: &[u8]) -> Result<usize, Error>

impl<T> DecodeLength for Vec<T>

fn len(self_encoded: &[u8]) -> Result<usize, Error>

Implementors