Trait HeaderChain

pub trait HeaderChain<C: Chain> {
    // Required method
    fn finalized_header_state_root(header_hash: HashOf<C>) -> Option<HashOf<C>>;

    // Provided method
    fn verify_storage_proof(
        header_hash: HashOf<C>,
        storage_proof: RawStorageProof,
    ) -> Result<StorageProofChecker<HasherOf<C>>, HeaderChainError> { ... }
}

Substrate header chain, abstracted from the way it is stored.

Required Methods

fn finalized_header_state_root(header_hash: HashOf<C>) -> Option<HashOf<C>>

Returns state (storage) root of given finalized header.

Provided Methods

fn verify_storage_proof( header_hash: HashOf<C>, storage_proof: RawStorageProof, ) -> Result<StorageProofChecker<HasherOf<C>>, HeaderChainError>

Get storage proof checker using finalized header.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<T: Config<I>, I: 'static> HeaderChain<<T as Config<I>>::BridgedChain> for GrandpaChainHeaders<T, I>

impl<T: Config<I>, I: 'static, C: Parachain<Hash = ParaHash>> HeaderChain<C> for ParachainHeaders<T, I, C>