Trait polkadot_service::runtime_traits::BlockIdTo

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

    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.

Implementors