utils

This package is meant to hold utilities used by Optimistic Ethereum written in Golang.

Packages

Fees

Package fees includes helpers for dealing with fees on Optimistic Ethereum

EncodeTxGasLimit(data []byte, l1GasPrice, l2GasLimit, l2GasPrice *big.Int) *big.Int

Encodes tx.gasLimit based on the variables that are used to determine it.

data - Calldata of the transaction being sent. This data should not include the full signed RLP transaction.

l1GasPrice - gas price on L1 in wei

l2GasLimit - amount of gas provided for execution in L2. Notably, accounts are charged for execution based on this gasLimit, even if the gasUsed ends up being less.

l2GasPrice - gas price on L2 in wei

DecodeL2GasLimit(gasLimit *big.Int) *big.Int

Accepts the return value of eth_estimateGas and decodes the L2 gas limit that is encoded in the return value. This is the gas limit that is passed to the user contract within the OVM.