Struct SealedHeader 

pub struct SealedHeader<H = Header> { /* private fields */ }

Seals the header with the block hash.

This type uses lazy sealing to avoid hashing the header until it is needed:

SealedHeader::new_unhashed creates a sealed header without hashing the header. SealedHeader::new creates a sealed header with the corresponding block hash. SealedHeader::hash computes the hash if it has not been computed yet.

Implementations

impl<H> SealedHeader<H>

pub fn new_unhashed(header: H) -> Self

Creates the sealed header without hashing the header.

pub fn new(header: H, hash: BlockHash) -> Self

Creates the sealed header with the corresponding block hash.

pub const fn header(&self) -> &H

Returns the sealed Header fields.

pub fn clone_header(&self) -> H

where H: Clone,

Clone the header.

pub fn into_header(self) -> H

Consumes the type and returns the wrapped header.

pub fn unseal(self) -> H

Consumes the type and returns the wrapped header.

pub fn sealed_ref(&self) -> SealedHeader<&H>

Converts from &SealedHeader<H> to SealedHeader<&H>.

impl<H: Sealable> SealedHeader<H>

pub fn seal_slow(header: H) -> Self

Hashes the header and creates a sealed header.

pub fn hash_ref(&self) -> &BlockHash

Returns the block hash.

Note: if the hash has not been computed yet, this will compute the hash: Sealable::hash_slow.

pub fn hash(&self) -> BlockHash

Returns a copy of the block hash.

pub fn split(self) -> (H, BlockHash)

This is the inverse of Self::seal_slow which returns the raw header and hash.

pub fn split_ref(&self) -> (&H, &BlockHash)

Returns references to both the header and hash without taking ownership.

impl<H: Sealable> SealedHeader<&H>

pub fn cloned(self) -> SealedHeader<H>

where H: Clone,

Maps a SealedHeader<&H> to a SealedHeader<H> by cloning the header.

impl<H: BlockHeader + Sealable> SealedHeader<H>

pub fn num_hash(&self) -> BlockNumHash

Return the number hash tuple.

pub fn block_with_parent(&self) -> BlockWithParent

Return a BlockWithParent for this header.

Trait Implementations

impl<H> AsRef<H> for SealedHeader<H>

fn as_ref(&self) -> &H

Converts this type into a shared reference of the (usually inferred) input type.

impl<H: Clone> Clone for SealedHeader<H>

fn clone(&self) -> SealedHeader<H>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<H: Debug> Debug for SealedHeader<H>

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

Formats the value using the given formatter.

impl Decodable for SealedHeader

fn decode(buf: &mut &[u8]) -> Result<Self>

Decodes the blob into the appropriate type. buf must be advanced past the decoded object.

impl<H: Sealable + Default> Default for SealedHeader<H>

fn default() -> Self

Returns the “default value” for a type.

impl<H> Deref for SealedHeader<H>

type Target = H

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl Encodable for SealedHeader

fn encode(&self, out: &mut dyn BufMut)

Encodes the type into the out buffer.

fn length(&self) -> usize

Returns the length of the encoding of this type in bytes.

impl<H: Sealable> From<SealedHeader<H>> for Sealed<H>

fn from(value: SealedHeader<H>) -> Self

Converts to this type from the input type.

impl<H: Sealable> Hash for SealedHeader<H>

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

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<H: InMemorySize> InMemorySize for SealedHeader<H>

fn size(&self) -> usize

Calculates a heuristic for the in-memory size of the SealedHeader.

impl<H: Sealable> PartialEq for SealedHeader<H>

fn eq(&self, other: &Self) -> 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<H: Sealable> Eq for SealedHeader<H>