Trait sc_client_api::call_executor::CallExecutor

pub trait CallExecutor<B: BlockT>: RuntimeVersionOf {
    type Error: Error;
    type Backend: Backend<B>;

    fn call(
        &self,
        id: &BlockId<B>,
        method: &str,
        call_data: &[u8],
        strategy: ExecutionStrategy,
        extensions: Option<Extensions>
    ) -> Result<Vec<u8>, Error>;
    fn contextual_call<EM: Fn(Result<NativeOrEncoded<R>, Self::Error>, Result<NativeOrEncoded<R>, Self::Error>) -> Result<NativeOrEncoded<R>, Self::Error>, R: Encode + Decode + PartialEq, NC: FnOnce() -> Result<R, ApiError> + UnwindSafe>(
        &self,
        at: &BlockId<B>,
        method: &str,
        call_data: &[u8],
        changes: &RefCell<OverlayedChanges>,
        storage_transaction_cache: Option<&RefCell<StorageTransactionCache<B, <Self::Backend as Backend<B>>::State>>>,
        execution_manager: ExecutionManager<EM>,
        native_call: Option<NC>,
        proof_recorder: &Option<ProofRecorder<B>>,
        extensions: Option<Extensions>
    ) -> Result<NativeOrEncoded<R>>
    where
        ExecutionManager<EM>: Clone;
    fn runtime_version(&self, id: &BlockId<B>) -> Result<RuntimeVersion, Error>;
    fn prove_execution(
        &self,
        at: &BlockId<B>,
        method: &str,
        call_data: &[u8]
    ) -> Result<(Vec<u8>, StorageProof), Error>;
}

Method call executor.

Required Associated Types

type Error: Error

Externalities error type.

type Backend: Backend<B>

The backend used by the node.

Required Methods

fn call(
    &self,
    id: &BlockId<B>,
    method: &str,
    call_data: &[u8],
    strategy: ExecutionStrategy,
    extensions: Option<Extensions>
) -> Result<Vec<u8>, Error>

Execute a call to a contract on top of state in a block of given hash.

No changes are made.

fn contextual_call<EM: Fn(Result<NativeOrEncoded<R>, Self::Error>, Result<NativeOrEncoded<R>, Self::Error>) -> Result<NativeOrEncoded<R>, Self::Error>, R: Encode + Decode + PartialEq, NC: FnOnce() -> Result<R, ApiError> + UnwindSafe>(
    &self,
    at: &BlockId<B>,
    method: &str,
    call_data: &[u8],
    changes: &RefCell<OverlayedChanges>,
    storage_transaction_cache: Option<&RefCell<StorageTransactionCache<B, <Self::Backend as Backend<B>>::State>>>,
    execution_manager: ExecutionManager<EM>,
    native_call: Option<NC>,
    proof_recorder: &Option<ProofRecorder<B>>,
    extensions: Option<Extensions>
) -> Result<NativeOrEncoded<R>>where
    ExecutionManager<EM>: Clone,

Execute a contextual call on top of state in a block of a given hash.

No changes are made. Before executing the method, passed header is installed as the current header of the execution context.

fn runtime_version(&self, id: &BlockId<B>) -> Result<RuntimeVersion, Error>

Extract RuntimeVersion of given block

No changes are made.

fn prove_execution(
    &self,
    at: &BlockId<B>,
    method: &str,
    call_data: &[u8]
) -> Result<(Vec<u8>, StorageProof), Error>

Prove the execution of the given method.

No changes are made.

Implementors