reth_op::rpc::eth::revm_utils

Function caller_gas_allowance

Source 
pub fn caller_gas_allowance<DB>(
    db: &mut DB,
    env: &impl TransactionEnv,
) -> Result<u64, EthApiError>
where
    DB: Database,
    EthApiError: From<<DB as Database>::Error>,
Available on crate feature rpc only.
Expand description

Calculates the caller gas allowance.

allowance = (account.balance - tx.value) / tx.gas_price

Returns an error if the caller has insufficient funds. Caution: This assumes non-zero env.gas_price. Otherwise, zero allowance will be returned.

Note: this takes the mut [Database] trait because the loaded sender can be reused for the following operation like eth_call.