Struct sc_service :: client :: Client Copy item path

impl<B, E, Block, RA> Client<B, E, Block, RA>
where B: Backend<Block>, E: CallExecutor<Block>, Block: BlockT, Block::Header: Clone,

pub fn new<G>( backend: Arc, executor: E, spawn_handle: Box<dyn SpawnNamed>, genesis_block_builder: G, fork_blocks: ForkBlocks<Block>, bad_blocks: BadBlocks<Block>, prometheus_registry: Option<Registry>, telemetry: Option<TelemetryHandle>, config: ClientConfig<Block>, ) -> Result<Self>
where G: BuildGenesisBlock<Block, BlockImportOperation = >::BlockImportOperation>, E: Clone, B: 'static,

Creates new Substrate Client with given blockchain and code executor.

pub fn import_notification_sinks( &self, ) -> &Mutex<Vec<TracingUnboundedSender<BlockImportNotification<Block>>>>

returns a reference to the block import notification sinks useful for test environments.

pub fn finality_notification_sinks( &self, ) -> &Mutex<Vec<TracingUnboundedSender<FinalityNotification<Block>>>>

returns a reference to the finality notification sinks useful for test environments.

pub fn state_at(&self, hash: Block::Hash) -> Result<B::State>

Get a reference to the state at a given block.

pub fn code_at(&self, hash: Block::Hash) -> Result<Vec<u8>>

Get the code at a given block.

This takes any potential substitutes into account, but ignores overrides.

pub fn runtime_version_at(&self, hash: Block::Hash) -> Result<RuntimeVersion>

Get the RuntimeVersion at a given block.

pub fn revert(&self, n: NumberFor<Block>) -> Result<NumberFor<Block>>

Attempts to revert the chain by n blocks guaranteeing that no block is reverted past the last finalized block. Returns the number of blocks that were successfully reverted.

pub fn unsafe_revert( &mut self, n: NumberFor<Block>, blacklist: bool, ) -> Result<NumberFor<Block>>

Attempts to revert the chain by n blocks disregarding finality. This method will revert any finalized blocks as requested and can potentially leave the node in an inconsistent state. Other modules in the system that persist data and that rely on finality (e.g. consensus parts) will be unaffected by the revert. Use this method with caution and making sure that no other data needs to be reverted for consistency aside from the block data. If blacklist is set to true, will also blacklist reverted blocks from finalizing again. The blacklist is reset upon client restart.

Returns the number of blocks that were successfully reverted.

pub fn chain_info(&self) -> BlockchainInfo<Block>

Get blockchain info.

pub fn block_status(&self, hash: Block::Hash) -> Result<BlockStatus>

Get block status.

Get block header by id.

pub fn body( &self, hash: Block::Hash, ) -> Result<Option<Vec<<Block as BlockT>::Extrinsic>>>

Get block body by id.

pub fn uncles( &self, target_hash: Block::Hash, max_generation: NumberFor<Block>, ) -> Result<Vec<Block::Hash>>

Gets the uncles of the block with target_hash going back max_generation ancestors.

Trait Implementations§

impl<B, E, Block, RA> AuxStore for &Client<B, E, Block, RA>
where B: Backend<Block>, E: CallExecutor<Block>, Block: BlockT, Client<B, E, Block, RA>: ProvideRuntimeApi<Block>, <Client<B, E, Block, RA> as ProvideRuntimeApi<Block>>::Api: CoreApi<Block>,

fn insert_aux<'a, 'b: 'a, 'c: 'a, I: IntoIterator<Item = &'a (&'c [u8], &'c [u8])>, D: IntoIterator<Item = &'a &'b [u8]>>( &self, insert: I, delete: D, ) -> Result<()>

Insert auxiliary data into key-value store. Read more

fn get_aux(&self, key: &[u8]) -> Result<Option<Vec<u8>>>

Query auxiliary data from key-value store.

impl<B, E, Block, RA> AuxStore for Client<B, E, Block, RA>
where B: Backend<Block>, E: CallExecutor<Block>, Block: BlockT, Self: ProvideRuntimeApi<Block>, <Self as ProvideRuntimeApi<Block>>::Api: CoreApi<Block>,

fn insert_aux<'a, 'b: 'a, 'c: 'a, I: IntoIterator<Item = &'a (&'c [u8], &'c [u8])>, D: IntoIterator<Item = &'a &'b [u8]>>( &self, insert: I, delete: D, ) -> Result<()>

Insert auxiliary data into key-value store.

fn get_aux(&self, key: &[u8]) -> Result<Option<Vec<u8>>>

Query auxiliary data from key-value store.

impl<B, E, Block, RA> BlockBackend<Block> for Client<B, E, Block, RA>
where B: Backend<Block>, E: CallExecutor<Block>, Block: BlockT,

fn block_body( &self, hash: Block::Hash, ) -> Result<Option<Vec<<Block as BlockT>::Extrinsic>>>

Get block body by ID. Returns None if the body is not stored.

fn block(&self, hash: Block::Hash) -> Result<Option<SignedBlock<Block>>>

Get full block by hash.

fn block_status(&self, hash: Block::Hash) -> Result<BlockStatus>

Get block status by block hash.

fn justifications(&self, hash: Block::Hash) -> Result<Option<Justifications>>

Get block justifications for the block with the given hash.

fn block_hash(&self, number: NumberFor<Block>) -> Result<Option<Block::Hash>>

Get block hash by number.

fn indexed_transaction(&self, hash: Block::Hash) -> Result<Option<Vec<u8>>>

Get single indexed transaction by content hash. Read more

fn has_indexed_transaction(&self, hash: Block::Hash) -> Result<bool>

Check if transaction index exists.

fn block_indexed_body(&self, hash: Block::Hash) -> Result<Option<Vec<Vec<u8>>>>

Get all indexed transactions for a block, including renewed transactions. Read more

fn requires_full_sync(&self) -> bool

Tells whether the current client configuration requires full-sync mode.

impl<B, E, Block, RA> BlockIdTo<Block> for Client<B, E, Block, RA>
where B: Backend<Block>, E: CallExecutor<Block> + Send + Sync, Block: BlockT, RA: Send + Sync,

type Error = Error

The error type that will be returned by the functions.

fn to_hash(&self, block_id: &BlockId<Block>) -> Result<Option<Block::Hash>>

Convert the given block_id to the corresponding block hash.

fn to_number( &self, block_id: &BlockId<Block>, ) -> Result<Option<NumberFor<Block>>>

Convert the given block_id to the corresponding block number.

impl<B, E, Block, RA> BlockImport<Block> for &Client<B, E, Block, RA>
where B: Backend<Block>, E: CallExecutor<Block> + Send + Sync, Block: BlockT, Client<B, E, Block, RA>: ProvideRuntimeApi<Block>, <Client<B, E, Block, RA> as ProvideRuntimeApi<Block>>::Api: CoreApi<Block> + ApiExt<Block>, RA: Sync + Send,

NOTE: only use this implementation when you are sure there are NO consensus-level BlockImport objects. Otherwise, importing blocks directly into the client would be bypassing important verification work.

fn import_block<'life0, 'async_trait>( &'life0 self, import_block: BlockImportParams<Block>, ) -> Pin<Box<dyn Future<Output = Result<ImportResult, Self::Error>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Import a checked and validated block.

NOTE: only use this implementation when there are NO consensus-level BlockImport objects. Otherwise, importing blocks directly into the client would be bypassing important verification work.

If you are not sure that there are no BlockImport objects provided by the consensus algorithm, don’t use this function.

fn check_block<'life0, 'async_trait>( &'life0 self, block: BlockCheckParams<Block>, ) -> Pin<Box<dyn Future<Output = Result<ImportResult, Self::Error>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Check block preconditions.

type Error = Error

The error type.

impl<B, E, Block, RA> BlockImport<Block> for Client<B, E, Block, RA>
where B: Backend<Block>, E: CallExecutor<Block> + Send + Sync, Block: BlockT, Self: ProvideRuntimeApi<Block>, <Self as ProvideRuntimeApi<Block>>::Api: CoreApi<Block> + ApiExt<Block>, RA: Sync + Send,

type Error = Error

The error type.

fn check_block<'life0, 'async_trait>( &'life0 self, block: BlockCheckParams<Block>, ) -> Pin<Box<dyn Future<Output = Result<ImportResult, Self::Error>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Check block preconditions.

fn import_block<'life0, 'async_trait>( &'life0 self, import_block: BlockImportParams<Block>, ) -> Pin<Box<dyn Future<Output = Result<ImportResult, Self::Error>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Import a block.

impl<B, E, Block, RA> BlockOf for Client<B, E, Block, RA>
where B: Backend<Block>, E: CallExecutor<Block>, Block: BlockT,

type Type = Block

The type of the block.

impl<B, E, Block, RA> BlockchainEvents<Block> for Client<B, E, Block, RA>
where E: CallExecutor<Block>, Block: BlockT,

fn import_notification_stream(&self) -> ImportNotifications<Block>

Get block import event stream.

fn storage_changes_notification_stream( &self, filter_keys: Option<&[StorageKey]>, child_filter_keys: Option<&[(StorageKey, Option<Vec<StorageKey>>)]>, ) -> Result<StorageEventStream<Block::Hash>>

Get storage changes event stream.

fn every_import_notification_stream(&self) -> ImportNotifications<Block>

Get a stream of every imported block.

fn finality_notification_stream(&self) -> FinalityNotifications<Block>

Get a stream of finality notifications. Not guaranteed to be fired for every finalized block.

impl<B, E, Block, RA> CallApiAt<Block> for Client<B, E, Block, RA>
where B: Backend<Block>, E: CallExecutor<Block, Backend = B> + Send + Sync, Block: BlockT, RA: Send + Sync,

type StateBackend = >::State

The state backend that is used to store the block states.

fn call_api_at( &self, params: CallApiAtParams<'_, Block>, ) -> Result<Vec<u8>, ApiError>

Calls the given api function with the given encoded arguments at the given block and returns the encoded result.

fn runtime_version_at( &self, hash: Block::Hash, ) -> Result<RuntimeVersion, ApiError>

Returns the runtime version at the given block.

fn state_at(&self, at: Block::Hash) -> Result<Self::StateBackend, ApiError>

Get the state at the given block.

fn initialize_extensions( &self, at: Block::Hash, extensions: &mut Extensions, ) -> Result<(), ApiError>

Initialize the extensions for the given block at by using the global extensions factory.

impl<BE, E, B, RA> Chain for Client<BE, E, B, RA>
where BE: Backend, E: CallExecutor, B: BlockT,

fn block_status( &self, hash: B::Hash, ) -> Result<BlockStatus, Box<dyn Error + Send>>

Retrieve the status of the block denoted by the given Block::Hash.

impl<B, E, Block, RA> ExecutorProvider<Block> for Client<B, E, Block, RA>
where B: Backend<Block>, E: CallExecutor<Block>, Block: BlockT,

type Executor = E

executor instance

fn executor(&self) -> &Self::Executor

Get call executor reference.

fn execution_extensions(&self) -> &ExecutionExtensions<Block>

Get a reference to the execution extensions.

impl<B, E, Block, RA> Finalizer<Block, B> for &Client<B, E, Block, RA>
where B: Backend<Block>, E: CallExecutor<Block>, Block: BlockT,

fn apply_finality( &self, operation: &mut ClientImportOperation<Block, B>, hash: Block::Hash, justification: Option<Justification>, notify: bool, ) -> Result<()>

Mark all blocks up to given as finalized in operation. Read more

fn finalize_block( &self, hash: Block::Hash, justification: Option<Justification>, notify: bool, ) -> Result<()>

Finalize a block. Read more

impl<B, E, Block, RA> Finalizer<Block, B> for Client<B, E, Block, RA>
where B: Backend<Block>, E: CallExecutor<Block>, Block: BlockT,

fn apply_finality( &self, operation: &mut ClientImportOperation<Block, B>, hash: Block::Hash, justification: Option<Justification>, notify: bool, ) -> Result<()>

Mark all blocks up to given as finalized in operation. Read more

fn finalize_block( &self, hash: Block::Hash, justification: Option<Justification>, notify: bool, ) -> Result<()>

Finalize a block. Read more

impl<B, E, Block, RA> HeaderBackend<Block> for &Client<B, E, Block, RA>
where B: Backend<Block>, E: CallExecutor<Block> + Send + Sync, Block: BlockT, RA: Send + Sync,

fn header(&self, hash: Block::Hash) -> Result<Option<Block::Header>>

Get block header. Returns None if block is not found.

fn info(&self) -> Info<Block>

Get blockchain info.

fn status(&self, hash: Block::Hash) -> Result<BlockStatus>

Get block status.

fn number( &self, hash: Block::Hash, ) -> Result<Option<<<Block as BlockT>::Header as HeaderT>::Number>>

Get block number by hash. Returns None if the header is not in the chain.

fn hash(&self, number: NumberFor<Block>) -> Result<Option<Block::Hash>>

Get block hash by number. Returns None if the header is not in the chain.

fn block_hash_from_id( &self, id: &BlockId<Block>, ) -> Result<Option<<Block as Block>::Hash>, Error>

Convert an arbitrary block ID into a block hash.

fn block_number_from_id( &self, id: &BlockId<Block>, ) -> Result<Option<<<Block as Block>::Header as Header>::Number>, Error>

Convert an arbitrary block ID into a block hash.

fn expect_header( &self, hash: <Block as Block>::Hash, ) -> Result<<Block as Block>::Header, Error>

Get block header. Returns UnknownBlock error if block is not found.

fn expect_block_number_from_id( &self, id: &BlockId<Block>, ) -> Result<<<Block as Block>::Header as Header>::Number, Error>

Convert an arbitrary block ID into a block number. Returns UnknownBlock error if block is not found.

fn expect_block_hash_from_id( &self, id: &BlockId<Block>, ) -> Result<<Block as Block>::Hash, Error>

Convert an arbitrary block ID into a block hash. Returns UnknownBlock error if block is not found.

impl<B, E, Block, RA> HeaderBackend<Block> for Client<B, E, Block, RA>
where B: Backend<Block>, E: CallExecutor<Block> + Send + Sync, Block: BlockT, RA: Send + Sync,

fn header(&self, hash: Block::Hash) -> Result<Option<Block::Header>>

Get block header. Returns None if block is not found.

fn info(&self) -> Info<Block>

Get blockchain info.

fn status(&self, hash: Block::Hash) -> Result<BlockStatus>

Get block status.

fn number( &self, hash: Block::Hash, ) -> Result<Option<<<Block as BlockT>::Header as HeaderT>::Number>>

Get block number by hash. Returns None if the header is not in the chain.

fn hash(&self, number: NumberFor<Block>) -> Result<Option<Block::Hash>>

Get block hash by number. Returns None if the header is not in the chain.

fn block_hash_from_id( &self, id: &BlockId<Block>, ) -> Result<Option<<Block as Block>::Hash>, Error>

Convert an arbitrary block ID into a block hash.

fn block_number_from_id( &self, id: &BlockId<Block>, ) -> Result<Option<<<Block as Block>::Header as Header>::Number>, Error>

Convert an arbitrary block ID into a block hash.

fn expect_header( &self, hash: <Block as Block>::Hash, ) -> Result<<Block as Block>::Header, Error>

Get block header. Returns UnknownBlock error if block is not found.

fn expect_block_number_from_id( &self, id: &BlockId<Block>, ) -> Result<<<Block as Block>::Header as Header>::Number, Error>

Convert an arbitrary block ID into a block number. Returns UnknownBlock error if block is not found.

fn expect_block_hash_from_id( &self, id: &BlockId<Block>, ) -> Result<<Block as Block>::Hash, Error>

Convert an arbitrary block ID into a block hash. Returns UnknownBlock error if block is not found.

impl<B, E, Block, RA> HeaderMetadata<Block> for Client<B, E, Block, RA>
where B: Backend<Block>, E: CallExecutor<Block>, Block: BlockT,

type Error = Error

Error used in case the header metadata is not found.

fn header_metadata( &self, hash: Block::Hash, ) -> Result<CachedHeaderMetadata<Block>, Self::Error>

fn insert_header_metadata( &self, hash: Block::Hash, metadata: CachedHeaderMetadata<Block>, )

fn remove_header_metadata(&self, hash: Block::Hash)

impl<BE, E, B, RA> IndexedBody for Client<BE, E, B, RA>
where BE: Backend, E: CallExecutor, B: BlockT,

fn block_indexed_body( &self, number: NumberFor, ) -> Result<Option<Vec<Vec<u8>>>, Error>

Get all indexed transactions for a block, including renewed transactions. Read more

fn number(&self, hash: B::Hash) -> Result<Option<NumberFor>, Error>

Get block number for a block hash.

impl<B, E, Block, RA> LockImportRun<Block, B> for &Client<B, E, Block, RA>
where Block: BlockT, B: Backend<Block>, E: CallExecutor<Block>,

fn lock_import_and_run<R, Err, F>(&self, f: F) -> Result<R, Err>
where F: FnOnce(&mut ClientImportOperation<Block, B>) -> Result<R, Err>, Err: From<Error>,

Lock the import lock, and run operations inside.

impl<B, E, Block, RA> LockImportRun<Block, B> for Client<B, E, Block, RA>
where B: Backend<Block>, E: CallExecutor<Block>, Block: BlockT,

fn lock_import_and_run<R, Err, F>(&self, f: F) -> Result<R, Err>
where F: FnOnce(&mut ClientImportOperation<Block, B>) -> Result<R, Err>, Err: From<Error>,

Lock the import lock, and run operations inside.

impl<B, E, Block, RA> PreCommitActions<Block> for Client<B, E, Block, RA>
where Block: BlockT,

fn register_import_action(&self, action: OnImportAction<Block>)

Actions to be performed on block import.

fn register_finality_action(&self, action: OnFinalityAction<Block>)

Actions to be performed on block finalization.

impl<B, E, Block, RA> ProofProvider<Block> for Client<B, E, Block, RA>
where B: Backend<Block>, E: CallExecutor<Block>, Block: BlockT,

fn read_proof( &self, hash: Block::Hash, keys: &mut dyn Iterator<Item = &[u8]>, ) -> Result<StorageProof>

Reads storage value at a given block + key, returning read proof.

fn read_child_proof( &self, hash: Block::Hash, child_info: &ChildInfo, keys: &mut dyn Iterator<Item = &[u8]>, ) -> Result<StorageProof>

Reads child storage value at a given block + storage_key + key, returning read proof.

fn execution_proof( &self, hash: Block::Hash, method: &str, call_data: &[u8], ) -> Result<(Vec<u8>, StorageProof)>

Execute a call to a contract on top of state in a block of given hash AND returning execution proof. Read more

fn read_proof_collection( &self, hash: Block::Hash, start_key: &[Vec<u8>], size_limit: usize, ) -> Result<(CompactProof, u32)>

Given a Hash iterate over all storage values starting at start_keys. Last start_keys element contains last accessed key value. With multiple start_keys, first start_keys element is the current storage key of of the last accessed child trie. at last level the value to start at exclusively. Proofs is build until size limit is reached and always include at least one key following start_keys. Returns combined proof and the numbers of collected keys.

fn storage_collection( &self, hash: Block::Hash, start_key: &[Vec<u8>], size_limit: usize, ) -> Result<Vec<(KeyValueStorageLevel, bool)>>

Given a Hash iterate over all storage values starting at start_key. Returns collected keys and values. Returns the collected keys values content of the top trie followed by the collected keys values of child tries. Only child tries with their root part of the collected content or related to start_key are attached. For each collected state a boolean indicates if state reach end.

fn verify_range_proof( &self, root: Block::Hash, proof: CompactProof, start_key: &[Vec<u8>], ) -> Result<(KeyValueStates, usize)>

Verify read storage proof for a set of keys. Returns collected key-value pairs and a the nested state depth of current iteration or 0 if completed.

impl<B, E, Block, RA> ProvideRuntimeApi<Block> for Client<B, E, Block, RA>
where B: Backend<Block>, E: CallExecutor<Block, Backend = B> + Send + Sync, Block: BlockT, RA: ConstructRuntimeApi<Block, Self> + Send + Sync,

type Api = <RA as ConstructRuntimeApi<Block, Client<B, E, Block, RA>>>::RuntimeApi

The concrete type that provides the api.

fn runtime_api(&self) -> ApiRef<'_, Self::Api>

Returns the runtime api. The returned instance will keep track of modifications to the storage. Any successful call to an api function, will commit its changes to an internal buffer. Otherwise, the modifications will be discarded. The modifications will not be applied to the storage, even on a commit.

impl<B, E, Block, RA> ProvideUncles<Block> for Client<B, E, Block, RA>
where B: Backend<Block>, E: CallExecutor<Block>, Block: BlockT,

fn uncles( &self, target_hash: Block::Hash, max_generation: NumberFor<Block>, ) -> Result<Vec<Block::Header>>

Gets the uncles of the block with target_hash going back max_generation ancestors.

impl<B, E, Block, RA> StorageProvider<Block, B> for Client<B, E, Block, RA>
where B: Backend<Block>, E: CallExecutor<Block>, Block: BlockT,

fn storage_keys( &self, hash: <Block as BlockT>::Hash, prefix: Option<&StorageKey>, start_key: Option<&StorageKey>, ) -> Result<KeysIter<B::State, Block>>

Given a block’s Hash and a key prefix, returns a KeysIter iterates matching storage keys in that block.

fn child_storage_keys( &self, hash: <Block as BlockT>::Hash, child_info: ChildInfo, prefix: Option<&StorageKey>, start_key: Option<&StorageKey>, ) -> Result<KeysIter<B::State, Block>>

Given a block’s Hash and a key prefix and a child storage key, returns a KeysIter that iterates matching storage keys in that block.

fn storage_pairs( &self, hash: <Block as BlockT>::Hash, prefix: Option<&StorageKey>, start_key: Option<&StorageKey>, ) -> Result<PairsIter<B::State, Block>>

Given a block’s Hash and a key prefix, returns an iterator over the storage keys and values in that block.

fn storage( &self, hash: Block::Hash, key: &StorageKey, ) -> Result<Option<StorageData>>

Given a block’s Hash and a key, return the value under the key in that block.

fn storage_hash( &self, hash: <Block as BlockT>::Hash, key: &StorageKey, ) -> Result<Option<Block::Hash>>

Given a block’s Hash and a key, return the value under the hash in that block.

fn child_storage( &self, hash: <Block as BlockT>::Hash, child_info: &ChildInfo, key: &StorageKey, ) -> Result<Option<StorageData>>

Given a block’s Hash, a key and a child storage key, return the value under the key in that block.

fn child_storage_hash( &self, hash: <Block as BlockT>::Hash, child_info: &ChildInfo, key: &StorageKey, ) -> Result<Option<Block::Hash>>

Given a block’s Hash, a key and a child storage key, return the hash under the key in that block.

fn closest_merkle_value( &self, hash: <Block as BlockT>::Hash, key: &StorageKey, ) -> Result<Option<MerkleValue<<Block as BlockT>::Hash>>>

Given a block’s Hash and a key, return the closest merkle value.

fn child_closest_merkle_value( &self, hash: <Block as BlockT>::Hash, child_info: &ChildInfo, key: &StorageKey, ) -> Result<Option<MerkleValue<<Block as BlockT>::Hash>>>

Given a block’s Hash, a key and a child storage key, return the closest merkle value.

impl<B, E, Block, RA> UsageProvider<Block> for Client<B, E, Block, RA>
where B: Backend<Block>, E: CallExecutor<Block>, Block: BlockT,

fn usage_info(&self) -> ClientInfo<Block>

Get usage info about current client.

Auto Trait Implementations§

impl<B, E, Block, RA> !Freeze for Client<B, E, Block, RA>

impl<B, E, Block, RA> !RefUnwindSafe for Client<B, E, Block, RA>

impl<B, E, Block, RA> Send for Client<B, E, Block, RA>
where E: Send + Sync, B: Sync + Send, RA: Send,

impl<B, E, Block, RA> Sync for Client<B, E, Block, RA>
where E: Sync + Send, B: Sync + Send, RA: Sync,

impl<B, E, Block, RA> Unpin for Client<B, E, Block, RA>
where E: Unpin, RA: Unpin, <Block as Block>::Hash: Unpin, <<Block as Block>::Header as Header>::Number: Unpin,

impl<B, E, Block, RA> !UnwindSafe for Client<B, E, Block, RA>

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> CheckedConversion for T

fn checked_from<T>(t: T) -> Option<Self>
where Self: TryFrom<T>,

Convert from a value of T into an equivalent instance of Option<Self>. Read more

fn checked_into<T>(self) -> Option<T>
where Self: TryInto<T>,

Consume self to return Some equivalent value of Option<T>. Read more

impl<T> Conv for T

fn conv<T>(self) -> T
where Self: Into<T>,

Converts self into T using Into<T>. Read more

impl<T> FmtForward for T

fn fmt_binary(self) -> FmtBinary<Self>
where Self: Binary,

Causes self to use its Binary implementation when Debug-formatted.

fn fmt_display(self) -> FmtDisplay<Self>
where Self: Display,

Causes self to use its Display implementation when Debug-formatted.

fn fmt_lower_exp(self) -> FmtLowerExp<Self>
where Self: LowerExp,

Causes self to use its LowerExp implementation when Debug-formatted.

fn fmt_lower_hex(self) -> FmtLowerHex<Self>
where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.

fn fmt_octal(self) -> FmtOctal<Self>
where Self: Octal,

Causes self to use its Octal implementation when Debug-formatted.

fn fmt_pointer(self) -> FmtPointer<Self>
where Self: Pointer,

Causes self to use its Pointer implementation when Debug-formatted.

fn fmt_upper_exp(self) -> FmtUpperExp<Self>
where Self: UpperExp,

Causes self to use its UpperExp implementation when Debug-formatted.

fn fmt_upper_hex(self) -> FmtUpperHex<Self>
where Self: UpperHex,

Causes self to use its UpperHex implementation when Debug-formatted.

fn fmt_list(self) -> FmtList<Self>
where &'a Self: for<'a> IntoIterator,

Formats each item in a sequence. Read more

impl<Block, T> ForkBackend<Block> for T
where Block: Block, T: HeaderMetadata<Block> + HeaderBackend<Block> + Send + Sync,

fn expand_forks( &self, fork_heads: &[<Block as Block>::Hash], ) -> Result<BTreeSet<<Block as Block>::Hash>, Error>

Returns block hashes for provided fork heads. It skips the fork if when blocks are missing (e.g. warp-sync) and internal tree_route function fails. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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where U: From<T>,

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impl<T> IntoEither for T

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

impl<Src, Dest> IntoTuple<Dest> for Src
where Dest: FromTuple<Src>,

fn into_tuple(self) -> Dest

impl<T, Outer> IsWrappedBy<Outer> for T
where Outer: AsRef<T> + AsMut<T> + From<T>, T: From<Outer>,

fn from_ref(outer: &Outer) -> &T

Get a reference to the inner from the outer.

fn from_mut(outer: &mut Outer) -> &mut T

Get a mutable reference to the inner from the outer.

impl<T> Pipe for T
where T: ?Sized,

fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R
where Self: Sized,

Pipes by value. This is generally the method you want to use. Read more

fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> R
where R: 'a,

Borrows self and passes that borrow into the pipe function. Read more

fn pipe_ref_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> R
where R: 'a,

Mutably borrows self and passes that borrow into the pipe function. Read more

fn pipe_borrow<'a, B, R>(&'a self, func: impl FnOnce(&'a B) -> R) -> R
where Self: Borrow, B: 'a + ?Sized, R: 'a,

Borrows self, then passes self.borrow() into the pipe function. Read more

fn pipe_borrow_mut<'a, B, R>( &'a mut self, func: impl FnOnce(&'a mut B) -> R, ) -> R
where Self: BorrowMut, B: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.borrow_mut() into the pipe function. Read more

fn pipe_as_ref<'a, U, R>(&'a self, func: impl FnOnce(&'a U) -> R) -> R
where Self: AsRef, U: 'a + ?Sized, R: 'a,

Borrows self, then passes self.as_ref() into the pipe function.

fn pipe_as_mut<'a, U, R>(&'a mut self, func: impl FnOnce(&'a mut U) -> R) -> R
where Self: AsMut, U: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.as_mut() into the pipe function.

fn pipe_deref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R
where Self: Deref<Target = T>, T: 'a + ?Sized, R: 'a,

Borrows self, then passes self.deref() into the pipe function.

fn pipe_deref_mut<'a, T, R>( &'a mut self, func: impl FnOnce(&'a mut T) -> R, ) -> R
where Self: DerefMut<Target = T> + Deref, T: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.deref_mut() into the pipe function.

impl<T> Pointable for T

const ALIGN: usize = _

The alignment of pointer.

type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

impl<T> Same for T

type Output = T

Should always be Self

impl<T> SaturatedConversion for T

fn saturated_from<T>(t: T) -> Self
where Self: UniqueSaturatedFrom<T>,

Convert from a value of T into an equivalent instance of Self. Read more

fn saturated_into<T>(self) -> T
where Self: UniqueSaturatedInto<T>,

Consume self to return an equivalent value of T. Read more

impl<T> Tap for T

fn tap(self, func: impl FnOnce(&Self)) -> Self

Immutable access to a value. Read more

fn tap_mut(self, func: impl FnOnce(&mut Self)) -> Self

Mutable access to a value. Read more

fn tap_borrow(self, func: impl FnOnce(&B)) -> Self
where Self: Borrow, B: ?Sized,

Immutable access to the Borrow of a value. Read more

fn tap_borrow_mut(self, func: impl FnOnce(&mut B)) -> Self
where Self: BorrowMut, B: ?Sized,

Mutable access to the BorrowMut of a value. Read more

fn tap_ref<R>(self, func: impl FnOnce(&R)) -> Self
where Self: AsRef<R>, R: ?Sized,

Immutable access to the AsRef<R> view of a value. Read more

fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Self
where Self: AsMut<R>, R: ?Sized,

Mutable access to the AsMut<R> view of a value. Read more

fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Self
where Self: Deref<Target = T>, T: ?Sized,

Immutable access to the Deref::Target of a value. Read more

fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Self
where Self: DerefMut<Target = T> + Deref, T: ?Sized,

Mutable access to the Deref::Target of a value. Read more

fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self

Calls .tap() only in debug builds, and is erased in release builds.

fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self

Calls .tap_mut() only in debug builds, and is erased in release builds.

fn tap_borrow_dbg(self, func: impl FnOnce(&B)) -> Self
where Self: Borrow, B: ?Sized,

Calls .tap_borrow() only in debug builds, and is erased in release builds.

fn tap_borrow_mut_dbg(self, func: impl FnOnce(&mut B)) -> Self
where Self: BorrowMut, B: ?Sized,

Calls .tap_borrow_mut() only in debug builds, and is erased in release builds.

fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Self
where Self: AsRef<R>, R: ?Sized,

Calls .tap_ref() only in debug builds, and is erased in release builds.

fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self
where Self: AsMut<R>, R: ?Sized,

Calls .tap_ref_mut() only in debug builds, and is erased in release builds.

fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Self
where Self: Deref<Target = T>, T: ?Sized,

Calls .tap_deref() only in debug builds, and is erased in release builds.

fn tap_deref_mut_dbg<T>(self, func: impl FnOnce(&mut T)) -> Self
where Self: DerefMut<Target = T> + Deref, T: ?Sized,

Calls .tap_deref_mut() only in debug builds, and is erased in release builds.

impl<T> TryConv for T

fn try_conv<T>(self) -> Result<T, Self::Error>
where Self: TryInto<T>,

Attempts to convert self into T using TryInto<T>. Read more

impl<T, U> TryFrom for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

impl<T, U> TryInto for T
where U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

impl<S, T> UncheckedInto<T> for S
where T: UncheckedFrom<S>,

fn unchecked_into(self) -> T

The counterpart to unchecked_from.

impl<T, S> UniqueSaturatedInto<T> for S
where T: Bounded, S: TryInto<T>,

fn unique_saturated_into(self) -> T

Consume self to return an equivalent value of T.

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

fn vzip(self) -> V

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more

impl<T> JsonSchemaMaybe for T