ERC4337 Validation
Simulator
simulateUserOp

simulateUserOp

Simulates a UserOperation and validates the ERC-4337 rules. Note: this function will revert if the UserOperation is invalid.

Usage

bool simulationSuccess = userOp.simulateUserOp(ENTRYPOINT_ADDR);

Parameters

userOp

  • Type: UserOperation | PackedUserOperation

The UserOperation to simulate.

onEntryPoint

  • Type: address

The address of the entry point. Note: if you're using v0.7 of ERC-4337, this should be the address of the EntryPointSimulations contract.

Returns

simulationSuccess

  • Type: bool

True if the simulation was successful, false otherwise. Note that a UserOperation might revert during validation, in which case the ERC-4337 rules will not be checked properly.

Getting Started