Trait Header 

pub trait Header:
    Sized
    + Encode
    + Decode {
    type Number: Into<u64>;
    type Hasher: Hasher;

    // Required method
    fn number(&self) -> Self::Number;

    // Provided method
    fn hash_with(
        &self,
        hasher: Self::Hasher,
    ) -> <Self::Hasher as Hasher>::Output { ... }
}

This represents the block header type used by a node.

Required Associated Types

type Number: Into<u64>

The block number type for this header.

type Hasher: Hasher

The hasher used to hash this header.

Required Methods

fn number(&self) -> Self::Number

Return the block number of this header.

Provided Methods

fn hash_with(&self, hasher: Self::Hasher) -> <Self::Hasher as Hasher>::Output

Hash this header.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<N, H> Header for SubstrateHeader<N, H>

where N: Copy + Into<u64> + Into<U256> + TryFrom<U256> + Encode, H: Hasher, SubstrateHeader<N, H>: Encode + Decode,

type Number = N

type Hasher = H