Struct TxConfig 

pub struct TxConfig {
    pub value: U256,
    pub gas_limit: Option<u64>,
    pub gas_price: Option<u128>,
    pub nonce: Option<u64>,
    pub access_list: Option<AccessList>,
}

Per-call transaction-environment overrides for a simulation.

Default reproduces the read-only behavior of the plain call_raw (zero value, default gas/nonce). Use the *_with call variants to supply these — e.g. to simulate a payable function, a native-ETH transfer, or a gas-bounded call. Balance affordability checks are disabled in the simulator, so a non-zero value does not require the caller to be funded.

Fields

value: U256

Native value (wei) sent with the call. Set this to simulate a payable function or a native-ETH transfer. Balance checks are disabled in the simulator, so the caller need not be funded for a non-zero value.

gas_limit: Option<u64>

Gas limit for the call. None uses revm’s default. Set this to model a gas-bounded call (e.g. to observe out-of-gas behavior).

gas_price: Option<u128>

Gas price (wei) for the call. None uses revm’s default. Rarely needed because base-fee checks are disabled in the simulator.

nonce: Option<u64>

Sender nonce. None lets the simulator pick; nonce checks are disabled, so this is only worth setting when a contract reads the nonce explicitly.

access_list: Option<AccessList>

EIP-2930 access list to pre-warm accounts and storage slots for this call. Pre-warming changes EIP-2929 gas accounting; supply it when reproducing the gas cost of a transaction that carried an access list.

Trait Implementations

impl Clone for TxConfig

fn clone(&self) -> TxConfig

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TxConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for TxConfig

fn default() -> TxConfig

Returns the “default value” for a type.