OpenFactory

Git Source

Inherits: AbstractFactory, Owned

Author: cosimo.demedici.eth (https://github.com/ninfa-labs/ninfa-contracts)

Clone factory pattern contract without any access control or fee required in order to deploy a clone, as long as it originates from a whitelisted master address.

Functions

constructor

The constructor sets the factory fee and calls the constructor of the parent contract.

The constructor sets the contract's owner directly, because the Owned contract was modified to remove its constructor (where owner is normally set).

no multi-role access control was needed as the clone function is open to anyone in this derived contract implementation.

Fee information is set in the base AbstractFactory-constructor

constructor(uint256 _feeNumerator, address _feeRecipient) AbstractFactory(_feeNumerator, _feeRecipient);

Parameters

Name	Type	Description
_feeNumerator	uint256	The numerator of the fee fraction.
_feeRecipient	address	The address to receive the fee.

clone

Clone function to create a new instance of a contract.

function clone(address _instance, bytes32 _salt, bytes calldata _data) external returns (address clone_);

Parameters

Name	Type	Description
_instance	address	The address of the instance to clone.
_salt	bytes32	A random number of our choice. Generated with https://web3js.readthedocs.io/en/v1.2.11/web3-utils.html#randomhex _salt could also be dynamically calculated in order to avoid duplicate clones and for a way of finding predictable clones if salt the parameters are known.
_data	bytes	The initialization data for the clone.

Returns

Name	Type	Description
clone_	address	The address of the new clone.

setMaster

function setMaster(address _instance, bool _isWhitelisted) external onlyOwner;

setSalesFeeInfo

see AbstractFactory-salesFeeInfo

function setSalesFeeInfo(address _feeRecipient, uint256 _feeNumerator) external onlyOwner;

Parameters

Name	Type	Description
_feeRecipient	address	The address to receive the fee.
_feeNumerator	uint256	The numerator of the fee fraction.

withdraw

A function to withdraw the balance of the contract deriving from either sales fees accessed via AbstractFactory-salesFeeInfo, or as flat fees for cloning defined in derived contracts, i.e. {PayableFactory-clone}.

function withdraw(address _fundsRecipient) external onlyOwner;