Struct ckb_types::core::HeaderView

pub struct HeaderView { /* private fields */ }

A readonly and immutable struct which includes Header and its hash.

Notice

This struct is not implement the trait Default, use HeaderBuilder to construct it.

Implementations

impl HeaderView

pub fn new_advanced_builder() -> HeaderBuilder

Creates an empty advanced builder.

pub fn as_advanced_builder(&self) -> HeaderBuilder

Creates an advanced builder base on current data.

impl HeaderView

pub fn data(&self) -> Header

Gets a clone of packed::Header.

pub fn hash(&self) -> Byte32

Gets a clone of hash.

pub fn version(&self) -> Version

Gets raw.version.

pub fn number(&self) -> BlockNumber

Gets raw.number.

pub fn compact_target(&self) -> u32

Gets raw.compact_target.

pub fn timestamp(&self) -> u64

Gets raw.timestamp.

pub fn epoch(&self) -> EpochNumberWithFraction

Gets raw.epoch.

pub fn parent_hash(&self) -> Byte32

Gets raw.parent_hash.

pub fn transactions_root(&self) -> Byte32

Gets raw.transactions_root.

pub fn proposals_hash(&self) -> Byte32

Gets raw.proposals_hash.

pub fn extra_hash(&self) -> Byte32

Gets raw.extra_hash.

pub fn dao(&self) -> Byte32

Gets raw.dao.

pub fn difficulty(&self) -> U256

Gets raw.difficulty.

pub fn nonce(&self) -> u128

Gets nonce.

pub fn is_genesis(&self) -> bool

Checks whether the header is the header block.

pub fn fake_hash(self, hash: Byte32) -> Self

Sets a fake header hash.

impl HeaderView

pub fn digest(&self) -> HeaderDigest

Get the MMR header digest of the header

Trait Implementations

impl Clone for HeaderView

fn clone(&self) -> HeaderView

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for HeaderView

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

Formats the value using the given formatter.

impl Display for HeaderView

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

Formats the value using the given formatter.

impl Hash for HeaderView

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Pack<HeaderView> for HeaderView

fn pack(&self) -> HeaderView

Packs a rust type into binary data.

impl PartialEq for HeaderView

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

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

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Unpack<HeaderView> for HeaderView

fn unpack(&self) -> HeaderView

Unpack binary data into rust types.

impl<'r> Unpack<HeaderView> for HeaderViewReader<'r>

fn unpack(&self) -> HeaderView

Unpack binary data into rust types.

impl Eq for HeaderView