Struct sp_runtime::testing::Header

pub struct Header {
    pub parent_hash: H256,
    pub number: u64,
    pub state_root: H256,
    pub extrinsics_root: H256,
    pub digest: Digest,
}

Block Header

Fields

parent_hash: H256

Parent hash

number: u64

Block Number

state_root: H256

Post-execution state trie root

extrinsics_root: H256

Merkle root of block's extrinsics

digest: Digest

Digest items

Implementations

impl Header

pub fn new_from_number(number: Self::Number) -> Self

A new header with the given number and default hash for all other fields.

Trait Implementations

impl Clone for Header

fn clone(&self) -> Header

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Header

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Decode for Header

fn decode<DecIn: Input>(input: &mut DecIn) -> Result<Self, Error>

Attempt to deserialise the value from input.

impl Default for Header

fn default() -> Header

Returns the "default value" for a type.

impl<'a> Deserialize<'a> for Header

fn deserialize<D: Deserializer<'a>>(de: D) -> Result<Self, D::Error>

Deserialize this value from the given Serde deserializer.

impl Encode for Header

fn encode_to<EncOut: Output>(&self, dest: &mut EncOut)

Convert self to a slice and append it to the destination.

fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding.

fn encode(&self) -> Vec<u8>

Convert self to an owned vector.

fn using_encoded<R, F>(&self, f: F) -> R where
    F: FnOnce(&[u8]) -> R, 

Convert self to a slice and then invoke the given closure with it.

impl EncodeLike<Header> for Header

impl Eq for Header

impl Header for Header

type Number = u64

Header number.

type Hashing = BlakeTwo256

Hashing algorithm

type Hash = H256

Header hash type

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

Returns a reference to the header number.

fn set_number(&mut self, num: Self::Number)

Sets the header number.

fn extrinsics_root(&self) -> &Self::Hash

Returns a reference to the extrinsics root.

fn set_extrinsics_root(&mut self, root: Self::Hash)

Sets the extrinsic root.

fn state_root(&self) -> &Self::Hash

Returns a reference to the state root.

fn set_state_root(&mut self, root: Self::Hash)

Sets the state root.

fn parent_hash(&self) -> &Self::Hash

Returns a reference to the parent hash.

fn set_parent_hash(&mut self, hash: Self::Hash)

Sets the parent hash.

fn digest(&self) -> &Digest

Returns a reference to the digest.

fn digest_mut(&mut self) -> &mut Digest

Get a mutable reference to the digest.

fn new(
    number: Self::Number,
    extrinsics_root: Self::Hash,
    state_root: Self::Hash,
    parent_hash: Self::Hash,
    digest: Digest
) -> Self

Creates new header.

fn hash(&self) -> Self::Hash

Returns the hash of the header.

impl MallocSizeOf for Header

fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize

Measure the heap usage of all descendant heap-allocated structures, but not the space taken up by the value itself.

impl PartialEq<Header> for Header

fn eq(&self, other: &Header) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Header) -> bool

This method tests for !=.

impl Serialize for Header

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error> where
    __S: Serializer, 

Serialize this value into the given Serde serializer.

impl StructuralEq for Header

impl StructuralPartialEq for Header