Trait pallet_beefy_mmr::pallet::Config

pub trait Config: Config + Config {
    type LeafVersion: Get<MmrLeafVersion>;
    type BeefyAuthorityToMerkleLeaf: Convert<<Self as Config>::BeefyId, Vec<u8>>;
    type LeafExtra: Member + FullCodec;
    type BeefyDataProvider: BeefyDataProvider<Self::LeafExtra>;
}

Configuration trait of this pallet.

The main purpose of this trait is to act as an interface between this pallet and the runtime in which it is embedded in. A type, function, or constant in this trait is essentially left to be configured by the runtime that includes this pallet.

Consequently, a runtime that wants to include this pallet must implement this trait. The module’s configuration trait.

Required Associated Types

type LeafVersion: Get<MmrLeafVersion>

Current leaf version.

Specifies the version number added to every leaf that get’s appended to the MMR. Read more in [MmrLeafVersion] docs about versioning leaves.

type BeefyAuthorityToMerkleLeaf: Convert<<Self as Config>::BeefyId, Vec<u8>>

Convert BEEFY AuthorityId to a form that would end up in the Merkle Tree.

For instance for ECDSA (secp256k1) we want to store uncompressed public keys (65 bytes) and later to Ethereum Addresses (160 bits) to simplify using them on Ethereum chain, but the rest of the Substrate codebase is storing them compressed (33 bytes) for efficiency reasons.

type LeafExtra: Member + FullCodec

The type expected for the leaf extra data

type BeefyDataProvider: BeefyDataProvider<Self::LeafExtra>

Retrieve arbitrary data that should be added to the mmr leaf

Object Safety

This trait is not object safe.

Implementors