Trait cita_vm::BlockDataProvider

pub trait BlockDataProvider: Send + Sync {
    fn get_block_hash(&self, number: &U256) -> H256;
}

BlockDataProvider provides functions to get block's hash from chain.

Block data(only hash) are required to cita-vm from externalize database.

Required methods

fn get_block_hash(&self, number: &U256) -> H256

Function get_block_hash returns the block_hash of the specific block.

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Implementors

impl BlockDataProvider for BlockDataProviderMock

Impl.

fn get_block_hash(&self, number: &U256) -> H256

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