IAccountV7

Git Source

ERC-4337 v0.7 IAccount interface with PackedUserOperation

This interface ensures we use the correct function signature for validateUserOp

Functions

validateUserOp

Validate user's signature and nonce the entryPoint will make the call to the recipient only if this validation call returns successfully. signature failure should be reported by returning SIG_VALIDATION_FAILED (1). This allows making a "simulation call" without a valid signature Other failures (e.g. nonce mismatch, or invalid signature format) should still revert to signal failure.

Must validate caller is the entryPoint. Must validate the signature and nonce

function validateUserOp(PackedUserOperation calldata userOp, bytes32 userOpHash, uint256 missingAccountFunds)
    external
    returns (uint256 validationData);

Parameters

Name	Type	Description
userOp	PackedUserOperation	- The operation that is about to be executed.
userOpHash	bytes32	- Hash of the user's request data. can be used as the basis for signature.
missingAccountFunds	uint256	- Missing funds on the account's deposit in the entrypoint. This is the minimum amount to transfer to the sender(entryPoint) to be able to make the call. The excess is left as a deposit in the entrypoint for future calls. Can be withdrawn anytime using "entryPoint.withdrawTo()". In case there is a paymaster in the request (or the current deposit is high enough), this value will be zero.

Returns

Name	Type	Description
validationData	uint256	- Packaged ValidationData structure. use _packValidationData and _unpackValidationData to encode and decode. <20-byte> sigAuthorizer - 0 for valid signature, 1 to mark signature failure, otherwise, an address of an "authorizer" contract. <6-byte> validUntil - Last timestamp this operation is valid. 0 for "indefinite" <6-byte> validAfter - First timestamp this operation is valid If an account doesn't use time-range, it is enough to return SIG_VALIDATION_FAILED value (1) for signature failure. Note that the validation code cannot use block.timestamp (or block.number) directly.