Struct SignedBlockHeader

pub struct SignedBlockHeader { /* private fields */ }

A block header and collection of signatures of a given block.

Implementations

impl SignedBlockHeader

pub fn new(block_header: BlockHeader, block_signatures: BlockSignatures) -> Self

Returns a new SignedBlockHeader.

pub fn block_header(&self) -> &BlockHeader

Returns the block header.

pub fn block_signatures(&self) -> &BlockSignatures

Returns the block signatures.

pub fn is_valid(&self) -> Result<(), SignedBlockHeaderValidationError>

Returns Ok if and only if the block hash and era ID in the BlockHeader are identical to those in the BlockSignatures.

Note that no cryptographic verification of the contained signatures is performed. For this, see BlockSignatures::is_verified.

pub fn invalidate_era(&mut self)

Available on crate feature testing only.

Sets the era ID contained in block_signatures to its max value, rendering it and hence self invalid (assuming the relevant era ID for this SignedBlockHeader wasn’t already the max value).

pub fn invalidate_last_signature(&mut self)

Available on crate feature testing only.

Replaces the signature field of the last block_signatures entry with the System variant of crate::crypto::Signature, rendering that entry invalid.

Note that Self::is_valid will be unaffected by this as it only checks for equality in the block hash and era ID of the header and signatures; no cryptographic verification is performed.

Trait Implementations

impl Clone for SignedBlockHeader

fn clone(&self) -> SignedBlockHeader

Returns a copy of the value.

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

Performs copy-assignment from source.

impl DataSize for SignedBlockHeader

const IS_DYNAMIC: bool = true

If true, the type has a heap size that can vary at runtime, depending on the actual value.

const STATIC_HEAP_SIZE: usize = 0usize

The amount of space a value of the type always occupies. If IS_DYNAMIC is false, this is the total amount of heap memory occupied by the value. Otherwise this is a lower bound.

fn estimate_heap_size(&self) -> usize

Estimates the size of heap memory taken up by this value.

impl Debug for SignedBlockHeader

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for SignedBlockHeader

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for SignedBlockHeader

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

Formats the value using the given formatter.

impl PartialEq for SignedBlockHeader

fn eq(&self, other: &SignedBlockHeader) -> 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 Serialize for SignedBlockHeader

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for SignedBlockHeader

impl StructuralPartialEq for SignedBlockHeader