Enum Vertex 

pub enum Vertex<C>
where
    C: Context,
{
    Unit(SignedWireUnit<C>),
    Evidence(Evidence<C>),
    Endorsements(Endorsements<C>),
    Ping(Ping<C>),
}

An element of the protocol state, that might depend on other elements.

It is the vertex in a directed acyclic graph, whose edges are dependencies.

Variants

Unit(SignedWireUnit<C>)

A signed unit of the consensus DAG.

Evidence(Evidence<C>)

Evidence of a validator’s transgression.

Endorsements(Endorsements<C>)

Endorsements for a unit.

Ping(Ping<C>)

A ping conveying the activity of its creator.

Implementations

impl<C: Context> Vertex<C>

pub fn value(&self) -> Option<&C::ConsensusValue>

Returns the consensus value mentioned in this vertex, if any.

These need to be validated before passing the vertex into the protocol state. E.g. if C::ConsensusValue is a transaction, it should be validated first (correct signature, structure, gas limit, etc.). If it is a hash of a transaction, the transaction should be obtained and validated. Only after that, the vertex can be considered valid.

pub fn unit_hash(&self) -> Option<C::Hash>

Returns the unit hash of this vertex (if it is a unit).

pub fn unit_seq_number(&self) -> Option<u64>

Returns the seq number of this vertex (if it is a unit).

pub fn is_evidence(&self) -> bool

Returns whether this is evidence, as opposed to other types of vertices.

pub fn timestamp(&self) -> Option<Timestamp>

Returns a Timestamp provided the vertex is a Vertex::Unit or Vertex::Ping.

pub fn creator(&self) -> Option<ValidatorIndex>

Returns the creator of this vertex, if one is defined.

pub fn id(&self) -> Dependency<C>

Returns the ID of this vertex.

pub fn unit(&self) -> Option<&SignedWireUnit<C>>

Returns a reference to the unit, or None if this is not a unit.

pub fn is_proposal(&self) -> bool

Returns true whether unit is a proposal.

Trait Implementations

impl<C> Clone for Vertex<C>

where C: Context + Clone,

fn clone(&self) -> Vertex<C>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<C> DataSize for Vertex<C>

where SignedWireUnit<C>: DataSize, Evidence<C>: DataSize, Endorsements<C>: DataSize, Ping<C>: DataSize, C: Context,

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.

fn estimate_detailed_heap_size(&self) -> MemUsageNode

Create a tree of memory estimations.

impl<C> Debug for Vertex<C>

where C: Context + Debug,

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

Formats the value using the given formatter.

impl<'de, C> Deserialize<'de> for Vertex<C>

where C: Context, C::Hash: Deserialize<'de>,

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<C> Hash for Vertex<C>

where C: Context + Hash,

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<C> PartialEq for Vertex<C>

where C: Context + PartialEq,

fn eq(&self, other: &Vertex<C>) -> 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<C> Serialize for Vertex<C>

where C: Context, C::Hash: Serialize,

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<C> Eq for Vertex<C>

where C: Context + Eq,

impl<C> StructuralPartialEq for Vertex<C>

where C: Context,