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", so this trait is not object safe.

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