Struct UserOperation 

pub struct UserOperation {
    pub sender: [u8; 20],
    pub nonce: [u8; 32],
    pub init_code: Vec<u8>,
    pub call_data: Vec<u8>,
    pub call_gas_limit: [u8; 32],
    pub verification_gas_limit: [u8; 32],
    pub pre_verification_gas: [u8; 32],
    pub max_fee_per_gas: [u8; 32],
    pub max_priority_fee_per_gas: [u8; 32],
    pub paymaster_and_data: Vec<u8>,
}

EIP-4337 UserOperation for account abstraction wallets.

This struct represents a user operation that gets submitted to a bundler instead of a regular transaction.

Fields

sender: [u8; 20]

The account making the operation.

nonce: [u8; 32]

Anti-replay nonce.

init_code: Vec<u8>

Contract creation code + calldata (for new accounts).

call_data: Vec<u8>

The calldata to execute on the sender account.

call_gas_limit: [u8; 32]

Gas limit for the execution phase.

verification_gas_limit: [u8; 32]

Gas limit for verification.

pre_verification_gas: [u8; 32]

Gas for pre-verification (bundler overhead).

max_fee_per_gas: [u8; 32]

Maximum fee per gas.

max_priority_fee_per_gas: [u8; 32]

Maximum priority fee per gas.

paymaster_and_data: Vec<u8>

Paymaster address + data (empty if self-paying).

Implementations

impl UserOperation

pub fn pack(&self) -> Vec<u8>

Pack the UserOperation for hashing (without signature).

Returns the ABI-encoded hash input as specified in EIP-4337.

pub fn hash(&self, entry_point: &[u8; 20], chain_id: u64) -> [u8; 32]

Compute the UserOperation hash.

keccak256(abi.encode(pack(userOp), entryPoint, chainId))

pub fn sign( &self, signer: &EthereumSigner, entry_point: &[u8; 20], chain_id: u64, ) -> Result<EthereumSignature, SignerError>

Sign this UserOperation.

Trait Implementations

impl Clone for UserOperation

fn clone(&self) -> UserOperation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UserOperation

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

Formats the value using the given formatter.