Trait polkadot_service::runtime_traits::BlockIdTo

pub trait BlockIdTo<Block>
where
    Block: Block,
{
    type Error: Error;

    // Required methods
    fn to_hash(
        &self,
        block_id: &BlockId<Block>,
    ) -> Result<Option<<Block as Block>::Hash>, Self::Error>;
    fn to_number(
        &self,
        block_id: &BlockId<Block>,
    ) -> Result<Option<<<Block as Block>::Header as Header>::Number>, Self::Error>;
}

Something that can convert a BlockId to a number or a hash.

Required Associated Types

type Error: Error

The error type that will be returned by the functions.

Required Methods

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

Convert the given block_id to the corresponding block hash.

fn to_number( &self, block_id: &BlockId<Block>, ) -> Result<Option<<<Block as Block>::Header as Header>::Number>, Self::Error>

Convert the given block_id to the corresponding block number.

Implementations on Foreign Types

impl<B, E, Block, RA> BlockIdTo<Block> for Client<B, E, Block, RA>

where B: Backend<Block>, E: CallExecutor<Block> + Send + Sync, Block: Block, RA: Send + Sync,

type Error = Error

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

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

Implementors