Crate parity_machine

Generalization of a state machine for a consensus engine. This will define traits for the header, block, and state of a blockchain.

Traits

Finalizable	Trait for blocks which have finalized information.
FinalizableHeader	A header with finalized information.
Header	A header. This contains important metadata about the block, as well as a "seal" that indicates validity to a consensus engine.
LiveBlock	A "live" block is one which is in the process of the transition. The state of this block can be mutated by arbitrary rules of the state transition function.
LocalizedMachine	Machine-related types localized to a specific lifetime.
Machine	Generalization of types surrounding blockchain-suitable state machines.
ScoredHeader	A header with an associated score (difficulty in PoW terms)
TotalScoredHeader	A header with associated total score.
Transactions	Trait for blocks which have a transaction type.
WithBalances	A state machine that uses balances.
WithMetadata	A state machine with block metadata.
WithMetadataHeader	A header with metadata information.