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IAccount.sol
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IAccount.sol
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// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.12;
import "./UserOperation.sol";
interface IAccount {
/**
* 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.
*
* @dev Must validate caller is the entryPoint.
* Must validate the signature and nonce
* @param userOp the operation that is about to be executed.
* @param userOpHash hash of the user's request data. can be used as the basis for signature.
* @param aggregator the aggregator used to validate the signature. NULL for non-aggregated signature accounts.
* @param missingAccountFunds 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* can be withdrawn anytime using "entryPoint.withdrawTo()"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.
* @return sigTimeRange signature and time-range of this operation
* <byte> sigFailure - (1) to mark signature failure, 0 for valid signature.
* <8-byte> validUntil - last timestamp this operation is valid. 0 for "indefinite"
* <8-byte> validAfter - first timestamp this operation is valid
* The 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.
*/
function validateUserOp(UserOperation calldata userOp, bytes32 userOpHash, address aggregator, uint256 missingAccountFunds)
external returns (uint256 sigTimeRange);
}