gas

Documentation

Overview

Package gas implements helper functions for calculating gas parameters based on Ethereum protocol values.

Index

• func CallGasEstimate(eth *ethclient.Client, from common.Address, op *userop.UserOperation) (uint64, error)
• type GasEstimates
• type Overhead
  • func NewDefaultOverhead() *Overhead
  • func (ov *Overhead) CalcPreVerificationGas(op *userop.UserOperation) *big.Int
  • func (ov *Overhead) NonZeroValueCall() *big.Int

Functions

func CallGasEstimate

func CallGasEstimate(
	eth *ethclient.Client,
	from common.Address,
	op *userop.UserOperation,
) (uint64, error)

Types

type GasEstimates

type GasEstimates struct {
	PreVerificationGas *big.Int `json:"preVerificationGas"`
	VerificationGas    *big.Int `json:"verificationGas"`
	CallGasLimit       *big.Int `json:"callGasLimit"`
}

GasEstimates provides estimate values for all gas fields in a UserOperation.

type Overhead

type Overhead struct {
	// contains filtered or unexported fields
}

Overhead provides helper methods for calculating gas limits based on pre-defined parameters.

func NewDefaultOverhead

func NewDefaultOverhead() *Overhead

NewDefaultOverhead returns an instance of Overhead using parameters defined by the Ethereum protocol.

func (*Overhead) CalcPreVerificationGas

func (ov *Overhead) CalcPreVerificationGas(op *userop.UserOperation) *big.Int

CalcPreVerificationGas returns an expected gas cost for processing a UserOperation from a batch.

func (*Overhead) NonZeroValueCall

func (ov *Overhead) NonZeroValueCall() *big.Int

NonZeroValueCall returns an expected gas cost of using the CALL opcode in the context of EIP-4337. See https://github.com/wolflo/evm-opcodes/blob/main/gas.md#aa-1-call.