Struct pallet_mmr::Module

pub struct Module<T: Config<I>, I: Instance = DefaultInstance>(_);

A public part of the pallet.

Implementations

impl<T: Config<I> + 'static, I: Instance> Module<T, I>

pub fn mmr_root_hash() -> <T as Config<I>>::Hash

Latest MMR Root hash.

pub fn mmr_leaves() -> u64

Current size of the MMR (number of leaves).

pub fn mmr_peak<K: EncodeLike<u64>>(key: K) -> Option<<T as Config<I>>::Hash>

Hashes of the nodes in the MMR.

Note this collection only contains MMR peaks, the inner nodes (and leaves) are pruned and only stored in the Offchain DB.

impl<T: Config<I>, I: Instance> Module<T, I>

pub fn generate_proof(
    leaf_index: u64
) -> Result<(<<T as Config<I>>::LeafData as LeafDataProvider>::LeafData, Proof<<T as Config<I>>::Hash>), Error>

Generate a MMR proof for the given leaf_index.

Note this method can only be used from an off-chain context (Offchain Worker or Runtime API call), since it requires all the leaves to be present. It may return an error or panic if used incorrectly.

pub fn verify_leaf(
    leaf: <<T as Config<I>>::LeafData as LeafDataProvider>::LeafData,
    proof: Proof<<T as Config<I>>::Hash>
) -> Result<(), Error>

Verify MMR proof for given leaf.

This method is safe to use within the runtime code. It will return Ok(()) if the proof is valid and an Err(..) if MMR is inconsistent (some leaves are missing) or the proof is invalid.

Trait Implementations

impl<T: Config<I>, I: Instance> Callable<T> for Module<T, I>

type Call = Call<T, I>

impl<T: Clone + Config<I>, I: Clone + Instance> Clone for Module<T, I>

fn clone(&self) -> Module<T, I>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Copy + Config<I>, I: Copy + Instance> Copy for Module<T, I>

impl<T: Config<I>, I: Instance> Debug for Module<T, I> where
    T: Debug,
    I: Debug, 

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

Formats the value using the given formatter.

impl<T: Eq + Config<I>, I: Eq + Instance> Eq for Module<T, I>

impl<T: Config<I>, I: Instance> GetPalletVersion for Module<T, I>

fn current_version() -> PalletVersion

Returns the current version of the pallet.

fn storage_version() -> Option<PalletVersion>

Returns the version of the pallet that is stored in storage.

impl<T: Config<I>, I: Instance> IntegrityTest for Module<T, I>

pub fn integrity_test()

Run integrity test.

impl<T: Config<I>, I: Instance> ModuleErrorMetadata for Module<T, I>

fn metadata() -> &'static [ErrorMetadata]

impl<T: Config + Config<I>, I: Instance> OffchainWorker<<T as Config>::BlockNumber> for Module<T, I>

pub fn offchain_worker(_n: BlockNumber)

This function is being called after every block import (when fully synced).

impl<T: Config + Config<I>, I: Instance> OnFinalize<<T as Config>::BlockNumber> for Module<T, I>

pub fn on_finalize(_n: BlockNumber)

The block is being finalized. Implement to have something happen.

impl<T: Config<I>, I: Instance> OnGenesis for Module<T, I>

fn on_genesis()

Something that should happen at genesis.

impl<T: Config + Config<I>, I: Instance> OnInitialize<<T as Config>::BlockNumber> for Module<T, I>

fn on_initialize(n: T::BlockNumber) -> Weight

The block is being initialized. Implement to have something happen.

impl<T: Config<I>, I: Instance> OnRuntimeUpgrade for Module<T, I>

fn on_runtime_upgrade() -> Weight

Perform a module upgrade.

impl<T: PartialEq + Config<I>, I: PartialEq + Instance> PartialEq<Module<T, I>> for Module<T, I>

fn eq(&self, other: &Module<T, I>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Module<T, I>) -> bool

This method tests for !=.

impl<T: Config<I>, I: Instance> StructuralEq for Module<T, I>

impl<T: Config<I>, I: Instance> StructuralPartialEq for Module<T, I>