Function validate_block_pre_execution 

pub fn validate_block_pre_execution<B, ChainSpec>(
    block: &SealedBlock<B>,
    chain_spec: &ChainSpec,
) -> Result<(), ConsensusError>
where
    B: Block,
    ChainSpec: EthereumHardforks,

Available on crate feature consensus only.

Validate a block without regard for state:

• Compares the ommer hash in the block header to the block body
• Compares the transactions root in the block header to the block body
• Pre-execution transaction validation