Struct SingletonLineage 

pub struct SingletonLineage { /* private fields */ }

The lineage of a DID identity singleton: every coin id from the launcher spend forward to the current unspent tip.

Authority is MEMBERSHIP in this lineage, not equality with the tip (see the module docs): a store launched from ANY genuine DID coin – the launch-time coin Cn, later spent to Cn+1 – is authoritative, while an attacker’s coin (never a member, since minting any lineage coin requires the DID’s key) is not. A conforming WU3 crate::resolve::ChainSource populates this by walking the singleton lineage on-chain.

Implementations

impl SingletonLineage

pub fn new(tip: Bytes32, members: impl IntoIterator<Item = Bytes32>) -> Self

Builds a lineage from its full member set and current tip. tip is always treated as a member, so a caller need not include it in members explicitly.

pub fn single(tip: Bytes32) -> Self

A degenerate single-coin lineage (the tip is the only member).

Use ONLY for a DID that has never been spent since launch, or where the caller genuinely knows no other lineage coin. It reproduces the strict tip-only authority behaviour, so a store parented to an earlier coin will NOT match – prefer Self::new with the walked lineage.

pub fn tip(&self) -> Bytes32

The current unspent singleton tip coin id.

pub fn contains(&self, coin_id: Bytes32) -> bool

Whether coin_id is a genuine coin in this singleton’s lineage – the authority membership test.

Trait Implementations

impl Clone for SingletonLineage

fn clone(&self) -> SingletonLineage

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SingletonLineage

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

Formats the value using the given formatter.

impl Eq for SingletonLineage

impl PartialEq for SingletonLineage

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SingletonLineage