Struct BlockHeader

pub struct BlockHeader { /* private fields */ }

The header portion of a Block.

Implementations

impl BlockHeader

pub fn parent_hash(&self) -> BlockHash

Returns the parent block’s hash.

pub fn state_root_hash(&self) -> Digest

Returns the root hash of global state after executing the deploys in this block.

pub fn body_hash(&self) -> Digest

Returns the hash of the body of this block.

Note

See validate_block_hashes_v1 and validate_block_hashes_v2 for further details on the different ways in which this hash can be calculated.

pub fn random_bit(&self) -> bool

Returns the random bit held in this block.

pub fn accumulated_seed(&self) -> Digest

Returns the accumulated seed held in this block.

pub fn era_end(&self) -> Option<&EraEnd>

Returns the EraEnd, where Some means this is a “switch block”, i.e. the final block of the specified era.

pub fn timestamp(&self) -> Timestamp

Returns the creation timestamp of this block.

pub fn era_id(&self) -> EraId

Returns the ID of the era in which this block belongs.

pub fn height(&self) -> u64

Returns the height of the block in the blockchain.

pub fn protocol_version(&self) -> ProtocolVersion

Returns the protocol version of the network at the time this block was created.

Trait Implementations

impl Clone for BlockHeader

fn clone(&self) -> BlockHeader

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for BlockHeader

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for BlockHeader

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for BlockHeader

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

Formats the value using the given formatter.

impl Hash for BlockHeader

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 Ord for BlockHeader

fn cmp(&self, other: &BlockHeader) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for BlockHeader

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl PartialOrd for BlockHeader

fn partial_cmp(&self, other: &BlockHeader) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for BlockHeader

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl ToBytes for BlockHeader

fn write_bytes(&self, buffer: &mut Vec<u8>) -> Result<(), Error>

Writes &self into a mutable writer.

fn to_bytes(&self) -> Result<Vec<u8>, Error>

Serializes &self to a Vec<u8>.

fn serialized_length(&self) -> usize

Returns the length of the Vec<u8> which would be returned from a successful call to to_bytes() or into_bytes(). The data is not actually serialized, so this call is relatively cheap.

fn into_bytes(self) -> Result<Vec<u8>, Error>

where Self: Sized,

Consumes self and serializes to a Vec<u8>.

impl Eq for BlockHeader

impl StructuralPartialEq for BlockHeader