Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

 contract Initializable    - function isConstructor()  contract Context is Initializable    - function _msgSender()    - function _msgData()  contract Ownable is Initializable, ...    - function initialize(address sender)    - function owner()    - function isOwner()    - function renounceOwnership()    - function transferOwnership(address ne ...    - function _transferOwnership(address n ...  contract Proxy    - function ()    - function _implementation()    - function _delegate(address implementa ...    - function _willFallback()    - function _fallback() library OpenZeppelinUpgradesAddress    - function isContract(address account)  contract BaseUpgradeabilityProxy i ...    - function _implementation()    - function _upgradeTo(address newImplem ...    - function _setImplementation(address n ...  contract UpgradeabilityProxy is Ba ...  contract BaseAdminUpgradeabilityPr ...    - function admin()    - function implementation()    - function changeAdmin(address newAdmin ...    - function upgradeTo(address newImpleme ...    - function upgradeToAndCall(address new ...    - function _admin()    - function _setAdmin(address newAdmin)    - function _willFallback()  contract InitializableUpgradeabili ...    - function initialize(address _logic, b ...  contract InitializableAdminUpgrade ... *    - function initialize(address _logic, a ... interface IERC20    - function totalSupply()    - function balanceOf(address account)    - function transfer(address recipient, ...    - function allowance(address owner, add ...    - function approve(address spender, uin ...    - function transferFrom(address sender, ... library SafeMath    - function add(uint256 a, uint256 b)    - function sub(uint256 a, uint256 b)    - function sub(uint256 a, uint256 b, st ...    - function mul(uint256 a, uint256 b)    - function div(uint256 a, uint256 b)    - function div(uint256 a, uint256 b, st ...    - function mod(uint256 a, uint256 b)    - function mod(uint256 a, uint256 b, st ...  contract ERC20 is Initializable, C ...    - function totalSupply()    - function balanceOf(address account)    - function transfer(address recipient, ...    - function allowance(address owner, add ...    - function approve(address spender, uin ...    - function transferFrom(address sender, ...    - function increaseAllowance(address sp ...    - function decreaseAllowance(address sp ...    - function _transfer(address sender, ad ...    - function _mint(address account, uint2 ...    - function _burn(address account, uint2 ...    - function _approve(address owner, addr ...    - function _burnFrom(address account, u ...  contract ERC20Detailed is Initiali ...    - function initialize(string memory nam ...    - function name()    - function symbol()    - function decimals()  contract Claimable is Initializabl ...    - function initialize(address _nextOwne ...    - function transferOwnership(address ne ...    - function claimOwnership() library Address    - function isContract(address account)    - function toPayable(address account)    - function sendValue(address payable re ... library SafeERC20    - function safeTransfer(IERC20 token, a ...    - function safeTransferFrom(IERC20 toke ...    - function safeApprove(IERC20 token, ad ...    - function safeIncreaseAllowance(IERC20 ...    - function safeDecreaseAllowance(IERC20 ...    - function callOptionalReturn(IERC20 to ...  contract CanReclaimTokens is Claim ...    - function initialize(address _nextOwne ...    - function blacklistRecoverableToken(ad ...    - function recoverTokens(address _token ...  contract ERC20WithRate is Initiali ...    - function initialize(address _nextOwne ...    - function setExchangeRate(uint256 _nex ...    - function exchangeRateCurrent()    - function _setRate(uint256 _nextRate)    - function balanceOfUnderlying(address ...    - function toUnderlying(uint256 _amount ...    - function fromUnderlying(uint256 _amou ...  contract ERC20WithPermit is Initia ...    - function initialize(    - function permit(  contract RenERC20LogicV1 is    - function initialize(    - function mint(address _to, uint256 _a ...    - function burn(address _from, uint256 ...    - function transfer(address recipient, ...    - function transferFrom(  contract RenERC20Proxy is Initiali ...

More Options

• Is this a proxy?
• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2021-01-26
*/

/**

Deployed by Ren Project, https://renproject.io

Commit hash: 1e106b3
Repository: https://github.com/renproject/gateway-sol
Issues: https://github.com/renproject/gateway-sol/issues

Licenses
@openzeppelin/contracts: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/LICENSE
gateway-sol: https://github.com/renproject/gateway-sol/blob/master/LICENSE

*/

pragma solidity ^0.5.16;


contract Initializable {

  
  bool private initialized;

  
  bool private initializing;

  
  modifier initializer() {
    require(initializing || isConstructor() || !initialized, "Contract instance has already been initialized");

    bool isTopLevelCall = !initializing;
    if (isTopLevelCall) {
      initializing = true;
      initialized = true;
    }

    _;

    if (isTopLevelCall) {
      initializing = false;
    }
  }

  
  function isConstructor() private view returns (bool) {
    
    
    
    
    
    address self = address(this);
    uint256 cs;
    assembly { cs := extcodesize(self) }
    return cs == 0;
  }

  
  uint256[50] private ______gap;
}

contract Context is Initializable {
    
    
    constructor () internal { }
    

    function _msgSender() internal view returns (address payable) {
        return msg.sender;
    }

    function _msgData() internal view returns (bytes memory) {
        this; 
        return msg.data;
    }
}

contract Ownable is Initializable, Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    
    function initialize(address sender) public initializer {
        _owner = sender;
        emit OwnershipTransferred(address(0), _owner);
    }

    
    function owner() public view returns (address) {
        return _owner;
    }

    
    modifier onlyOwner() {
        require(isOwner(), "Ownable: caller is not the owner");
        _;
    }

    
    function isOwner() public view returns (bool) {
        return _msgSender() == _owner;
    }

    
    function renounceOwnership() public onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

    
    function transferOwnership(address newOwner) public onlyOwner {
        _transferOwnership(newOwner);
    }

    
    function _transferOwnership(address newOwner) internal {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }

    uint256[50] private ______gap;
}

contract Proxy {
  
  function () payable external {
    _fallback();
  }

  
  function _implementation() internal view returns (address);

  
  function _delegate(address implementation) internal {
    assembly {
      
      
      
      calldatacopy(0, 0, calldatasize)

      
      
      let result := delegatecall(gas, implementation, 0, calldatasize, 0, 0)

      
      returndatacopy(0, 0, returndatasize)

      switch result
      
      case 0 { revert(0, returndatasize) }
      default { return(0, returndatasize) }
    }
  }

  
  function _willFallback() internal {
  }

  
  function _fallback() internal {
    _willFallback();
    _delegate(_implementation());
  }
}

library OpenZeppelinUpgradesAddress {
    
    function isContract(address account) internal view returns (bool) {
        uint256 size;
        
        
        
        
        
        
        
        assembly { size := extcodesize(account) }
        return size > 0;
    }
}

contract BaseUpgradeabilityProxy is Proxy {
  
  event Upgraded(address indexed implementation);

  
  bytes32 internal constant IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;

  
  function _implementation() internal view returns (address impl) {
    bytes32 slot = IMPLEMENTATION_SLOT;
    assembly {
      impl := sload(slot)
    }
  }

  
  function _upgradeTo(address newImplementation) internal {
    _setImplementation(newImplementation);
    emit Upgraded(newImplementation);
  }

  
  function _setImplementation(address newImplementation) internal {
    require(OpenZeppelinUpgradesAddress.isContract(newImplementation), "Cannot set a proxy implementation to a non-contract address");

    bytes32 slot = IMPLEMENTATION_SLOT;

    assembly {
      sstore(slot, newImplementation)
    }
  }
}

contract UpgradeabilityProxy is BaseUpgradeabilityProxy {
  
  constructor(address _logic, bytes memory _data) public payable {
    assert(IMPLEMENTATION_SLOT == bytes32(uint256(keccak256('eip1967.proxy.implementation')) - 1));
    _setImplementation(_logic);
    if(_data.length > 0) {
      (bool success,) = _logic.delegatecall(_data);
      require(success);
    }
  }  
}

contract BaseAdminUpgradeabilityProxy is BaseUpgradeabilityProxy {
  
  event AdminChanged(address previousAdmin, address newAdmin);

  

  bytes32 internal constant ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;

  
  modifier ifAdmin() {
    if (msg.sender == _admin()) {
      _;
    } else {
      _fallback();
    }
  }

  
  function admin() external ifAdmin returns (address) {
    return _admin();
  }

  
  function implementation() external ifAdmin returns (address) {
    return _implementation();
  }

  
  function changeAdmin(address newAdmin) external ifAdmin {
    require(newAdmin != address(0), "Cannot change the admin of a proxy to the zero address");
    emit AdminChanged(_admin(), newAdmin);
    _setAdmin(newAdmin);
  }

  
  function upgradeTo(address newImplementation) external ifAdmin {
    _upgradeTo(newImplementation);
  }

  
  function upgradeToAndCall(address newImplementation, bytes calldata data) payable external ifAdmin {
    _upgradeTo(newImplementation);
    (bool success,) = newImplementation.delegatecall(data);
    require(success);
  }

  
  function _admin() internal view returns (address adm) {
    bytes32 slot = ADMIN_SLOT;
    assembly {
      adm := sload(slot)
    }
  }

  
  function _setAdmin(address newAdmin) internal {
    bytes32 slot = ADMIN_SLOT;

    assembly {
      sstore(slot, newAdmin)
    }
  }

  
  function _willFallback() internal {
    require(msg.sender != _admin(), "Cannot call fallback function from the proxy admin");
    super._willFallback();
  }
}

contract InitializableUpgradeabilityProxy is BaseUpgradeabilityProxy {
  
  function initialize(address _logic, bytes memory _data) public payable {
    require(_implementation() == address(0));
    assert(IMPLEMENTATION_SLOT == bytes32(uint256(keccak256('eip1967.proxy.implementation')) - 1));
    _setImplementation(_logic);
    if(_data.length > 0) {
      (bool success,) = _logic.delegatecall(_data);
      require(success);
    }
  }  
}

contract InitializableAdminUpgradeabilityProxy is BaseAdminUpgradeabilityProxy, InitializableUpgradeabilityProxy {
  
  function initialize(address _logic, address _admin, bytes memory _data) public payable {
    require(_implementation() == address(0));
    InitializableUpgradeabilityProxy.initialize(_logic, _data);
    assert(ADMIN_SLOT == bytes32(uint256(keccak256('eip1967.proxy.admin')) - 1));
    _setAdmin(_admin);
  }
}

interface IERC20 {
    
    function totalSupply() external view returns (uint256);

    
    function balanceOf(address account) external view returns (uint256);

    
    function transfer(address recipient, uint256 amount) external returns (bool);

    
    function allowance(address owner, address spender) external view returns (uint256);

    
    function approve(address spender, uint256 amount) external returns (bool);

    
    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);

    
    event Transfer(address indexed from, address indexed to, uint256 value);

    
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

library SafeMath {
    
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");

        return c;
    }

    
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }

    
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;

        return c;
    }

    
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        
        
        
        if (a == 0) {
            return 0;
        }

        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");

        return c;
    }

    
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return div(a, b, "SafeMath: division by zero");
    }

    
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        
        require(b > 0, errorMessage);
        uint256 c = a / b;
        

        return c;
    }

    
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

    
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

contract ERC20 is Initializable, Context, IERC20 {
    using SafeMath for uint256;

    mapping (address => uint256) private _balances;

    mapping (address => mapping (address => uint256)) private _allowances;

    uint256 private _totalSupply;

    
    function totalSupply() public view returns (uint256) {
        return _totalSupply;
    }

    
    function balanceOf(address account) public view returns (uint256) {
        return _balances[account];
    }

    
    function transfer(address recipient, uint256 amount) public returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    
    function allowance(address owner, address spender) public view returns (uint256) {
        return _allowances[owner][spender];
    }

    
    function approve(address spender, uint256 amount) public returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    
    function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) {
        _transfer(sender, recipient, amount);
        _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
        return true;
    }

    
    function increaseAllowance(address spender, uint256 addedValue) public returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
        return true;
    }

    
    function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
        return true;
    }

    
    function _transfer(address sender, address recipient, uint256 amount) internal {
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");

        _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
        _balances[recipient] = _balances[recipient].add(amount);
        emit Transfer(sender, recipient, amount);
    }

    
    function _mint(address account, uint256 amount) internal {
        require(account != address(0), "ERC20: mint to the zero address");

        _totalSupply = _totalSupply.add(amount);
        _balances[account] = _balances[account].add(amount);
        emit Transfer(address(0), account, amount);
    }

    
    function _burn(address account, uint256 amount) internal {
        require(account != address(0), "ERC20: burn from the zero address");

        _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
        _totalSupply = _totalSupply.sub(amount);
        emit Transfer(account, address(0), amount);
    }

    
    function _approve(address owner, address spender, uint256 amount) internal {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    
    function _burnFrom(address account, uint256 amount) internal {
        _burn(account, amount);
        _approve(account, _msgSender(), _allowances[account][_msgSender()].sub(amount, "ERC20: burn amount exceeds allowance"));
    }

    uint256[50] private ______gap;
}

contract ERC20Detailed is Initializable, IERC20 {
    string private _name;
    string private _symbol;
    uint8 private _decimals;

    
    function initialize(string memory name, string memory symbol, uint8 decimals) public initializer {
        _name = name;
        _symbol = symbol;
        _decimals = decimals;
    }

    
    function name() public view returns (string memory) {
        return _name;
    }

    
    function symbol() public view returns (string memory) {
        return _symbol;
    }

    
    function decimals() public view returns (uint8) {
        return _decimals;
    }

    uint256[50] private ______gap;
}

contract Claimable is Initializable, Ownable {
    address public pendingOwner;

    function initialize(address _nextOwner) public initializer {
        Ownable.initialize(_nextOwner);
    }

    modifier onlyPendingOwner() {
        require(
            _msgSender() == pendingOwner,
            "Claimable: caller is not the pending owner"
        );
        _;
    }

    function transferOwnership(address newOwner) public onlyOwner {
        require(
            newOwner != owner() && newOwner != pendingOwner,
            "Claimable: invalid new owner"
        );
        pendingOwner = newOwner;
    }

    function claimOwnership() public onlyPendingOwner {
        _transferOwnership(pendingOwner);
        delete pendingOwner;
    }
}

library Address {
    
    function isContract(address account) internal view returns (bool) {
        
        
        
        bytes32 codehash;
        bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
        
        assembly { codehash := extcodehash(account) }
        return (codehash != accountHash && codehash != 0x0);
    }

    
    function toPayable(address account) internal pure returns (address payable) {
        return address(uint160(account));
    }

    
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        
        (bool success, ) = recipient.call.value(amount)("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }
}

library SafeERC20 {
    using SafeMath for uint256;
    using Address for address;

    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    function safeApprove(IERC20 token, address spender, uint256 value) internal {
        
        
        
        
        require((value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 newAllowance = token.allowance(address(this), spender).add(value);
        callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: decreased allowance below zero");
        callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    
    function callOptionalReturn(IERC20 token, bytes memory data) private {
        
        

        
        
        
        
        
        require(address(token).isContract(), "SafeERC20: call to non-contract");

        
        (bool success, bytes memory returndata) = address(token).call(data);
        require(success, "SafeERC20: low-level call failed");

        if (returndata.length > 0) { 
            
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

contract CanReclaimTokens is Claimable {
    using SafeERC20 for ERC20;

    mapping(address => bool) private recoverableTokensBlacklist;

    function initialize(address _nextOwner) public initializer {
        Claimable.initialize(_nextOwner);
    }

    function blacklistRecoverableToken(address _token) public onlyOwner {
        recoverableTokensBlacklist[_token] = true;
    }

    
    
    function recoverTokens(address _token) external onlyOwner {
        require(
            !recoverableTokensBlacklist[_token],
            "CanReclaimTokens: token is not recoverable"
        );

        if (_token == address(0x0)) {
            msg.sender.transfer(address(this).balance);
        } else {
            ERC20(_token).safeTransfer(
                msg.sender,
                ERC20(_token).balanceOf(address(this))
            );
        }
    }
}

contract ERC20WithRate is Initializable, Ownable, ERC20 {
    using SafeMath for uint256;

    uint256 public constant _rateScale = 1e18;
    uint256 internal _rate;

    event LogRateChanged(uint256 indexed _rate);

    
    function initialize(address _nextOwner, uint256 _initialRate)
        public
        initializer
    {
        Ownable.initialize(_nextOwner);
        _setRate(_initialRate);
    }

    function setExchangeRate(uint256 _nextRate) public onlyOwner {
        _setRate(_nextRate);
    }

    function exchangeRateCurrent() public view returns (uint256) {
        require(_rate != 0, "ERC20WithRate: rate has not been initialized");
        return _rate;
    }

    function _setRate(uint256 _nextRate) internal {
        require(_nextRate > 0, "ERC20WithRate: rate must be greater than zero");
        _rate = _nextRate;
    }

    function balanceOfUnderlying(address _account)
        public
        view
        returns (uint256)
    {
        return toUnderlying(balanceOf(_account));
    }

    function toUnderlying(uint256 _amount) public view returns (uint256) {
        return _amount.mul(_rate).div(_rateScale);
    }

    function fromUnderlying(uint256 _amountUnderlying)
        public
        view
        returns (uint256)
    {
        return _amountUnderlying.mul(_rateScale).div(_rate);
    }
}

contract ERC20WithPermit is Initializable, ERC20, ERC20Detailed {
    using SafeMath for uint256;

    mapping(address => uint256) public nonces;

    
    
    string public version;

    
    bytes32 public DOMAIN_SEPARATOR;
    
    
    bytes32
        public constant PERMIT_TYPEHASH = 0xea2aa0a1be11a07ed86d755c93467f4f82362b452371d1ba94d1715123511acb;

    function initialize(
        uint256 _chainId,
        string memory _version,
        string memory _name,
        string memory _symbol,
        uint8 _decimals
    ) public initializer {
        ERC20Detailed.initialize(_name, _symbol, _decimals);
        version = _version;
        DOMAIN_SEPARATOR = keccak256(
            abi.encode(
                keccak256(
                    "EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"
                ),
                keccak256(bytes(name())),
                keccak256(bytes(version)),
                _chainId,
                address(this)
            )
        );
    }

    
    function permit(
        address holder,
        address spender,
        uint256 nonce,
        uint256 expiry,
        bool allowed,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external {
        bytes32 digest = keccak256(
            abi.encodePacked(
                "\x19\x01",
                DOMAIN_SEPARATOR,
                keccak256(
                    abi.encode(
                        PERMIT_TYPEHASH,
                        holder,
                        spender,
                        nonce,
                        expiry,
                        allowed
                    )
                )
            )
        );

        require(holder != address(0), "ERC20WithRate: address must not be 0x0");
        require(
            holder == ecrecover(digest, v, r, s),
            "ERC20WithRate: invalid signature"
        );
        require(
            expiry == 0 || now <= expiry,
            "ERC20WithRate: permit has expired"
        );
        require(nonce == nonces[holder]++, "ERC20WithRate: invalid nonce");
        uint256 amount = allowed ? uint256(-1) : 0;
        _approve(holder, spender, amount);
    }
}

contract RenERC20LogicV1 is
    Initializable,
    ERC20,
    ERC20Detailed,
    ERC20WithRate,
    ERC20WithPermit,
    Claimable,
    CanReclaimTokens
{
    
    function initialize(
        uint256 _chainId,
        address _nextOwner,
        uint256 _initialRate,
        string memory _version,
        string memory _name,
        string memory _symbol,
        uint8 _decimals
    ) public initializer {
        ERC20Detailed.initialize(_name, _symbol, _decimals);
        ERC20WithRate.initialize(_nextOwner, _initialRate);
        ERC20WithPermit.initialize(
            _chainId,
            _version,
            _name,
            _symbol,
            _decimals
        );
        Claimable.initialize(_nextOwner);
        CanReclaimTokens.initialize(_nextOwner);
    }

    
    
    function mint(address _to, uint256 _amount) public onlyOwner {
        _mint(_to, _amount);
    }

    
    
    function burn(address _from, uint256 _amount) public onlyOwner {
        _burn(_from, _amount);
    }

    function transfer(address recipient, uint256 amount) public returns (bool) {
        
        
        
        require(
            recipient != address(this),
            "RenERC20: can't transfer to token address"
        );
        return super.transfer(recipient, amount);
    }

    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) public returns (bool) {
        
        
        require(
            recipient != address(this),
            "RenERC20: can't transfer to token address"
        );
        return super.transferFrom(sender, recipient, amount);
    }
}

contract RenERC20Proxy is InitializableAdminUpgradeabilityProxy {

}

• No Contract Security Audit Submitted- Submit Audit Here

[{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"previousAdmin","type":"address"},{"indexed":false,"internalType":"address","name":"newAdmin","type":"address"}],"name":"AdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"implementation","type":"address"}],"name":"Upgraded","type":"event"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"constant":false,"inputs":[],"name":"admin","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"newAdmin","type":"address"}],"name":"changeAdmin","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_logic","type":"address"},{"internalType":"address","name":"_admin","type":"address"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"initialize","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_logic","type":"address"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"initialize","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"newImplementation","type":"address"}],"name":"upgradeTo","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"newImplementation","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"upgradeToAndCall","outputs":[],"payable":true,"stateMutability":"payable","type":"function"}]

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

7053:437:0:-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;2719:11;:9;:11::i;:::-;7053:437;5778:105;;8:9:-1;5:2;;;30:1;27;20:12;5:2;5778:105:0;;;;;;13:2:-1;8:3;5:11;2:2;;;29:1;26;19:12;2:2;-1:-1;5778:105:0;-1:-1:-1;;;;;5778:105:0;;:::i;5893:225::-;;;;;;13:2:-1;8:3;5:11;2:2;;;29:1;26;19:12;2:2;-1:-1;;;;;5893:225:0;;;;;;;;;;;;;;;21:11:-1;5:28;;2:2;;;46:1;43;36:12;2:2;5893:225:0;;35:9:-1;28:4;12:14;8:25;5:40;2:2;;;58:1;55;48:12;2:2;5893:225:0;;;;;;100:9:-1;95:1;81:12;77:20;67:8;63:35;60:50;39:11;25:12;22:29;11:107;8:2;;;131:1;128;121:12;8:2;-1:-1;5893:225:0;;-1:-1:-1;5893:225:0;-1:-1:-1;5893:225:0;:::i;5432:98::-;;8:9:-1;5:2;;;30:1;27;20:12;5:2;5432:98:0;;;:::i;:::-;;;;-1:-1:-1;;;;;5432:98:0;;;;;;;;;;;;;;5540:228;;8:9:-1;5:2;;;30:1;27;20:12;5:2;5540:228:0;;;;;;13:2:-1;8:3;5:11;2:2;;;29:1;26;19:12;2:2;-1:-1;5540:228:0;-1:-1:-1;;;;;5540:228:0;;:::i;7175:312::-;;;;;;13:2:-1;8:3;5:11;2:2;;;29:1;26;19:12;2:2;-1:-1;;;;;7175:312:0;;;;;;;;;;;;;;;;;;;;;;;21:11:-1;5:28;;2:2;;;46:1;43;36:12;2:2;7175:312:0;;35:9:-1;28:4;12:14;8:25;5:40;2:2;;;58:1;55;48:12;2:2;7175:312:0;;;;;;100:9:-1;95:1;81:12;77:20;67:8;63:35;60:50;39:11;25:12;22:29;11:107;8:2;;;131:1;128;121:12;8:2;7175:312:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;30:3:-1;22:6;14;1:33;99:1;81:16;;74:27;;;;-1:-1;7175:312:0;;-1:-1:-1;7175:312:0;;-1:-1:-1;;;;;7175:312:0:i;6673:371::-;;;;;;13:2:-1;8:3;5:11;2:2;;;29:1;26;19:12;2:2;-1:-1;;;;;6673:371:0;;;;;;;;;;;;;;;21:11:-1;5:28;;2:2;;;46:1;43;36:12;2:2;6673:371:0;;35:9:-1;28:4;12:14;8:25;5:40;2:2;;;58:1;55;48:12;2:2;6673:371:0;;;;;;100:9:-1;95:1;81:12;77:20;67:8;63:35;60:50;39:11;25:12;22:29;11:107;8:2;;;131:1;128;121:12;8:2;6673:371:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;30:3:-1;22:6;14;1:33;99:1;81:16;;74:27;;;;-1:-1;6673:371:0;;-1:-1:-1;6673:371:0;;-1:-1:-1;;;;;6673:371:0:i;5342:80::-;;8:9:-1;5:2;;;30:1;27;20:12;5:2;5342:80:0;;;:::i;3290:93::-;3327:15;:13;:15::i;:::-;3349:28;3359:17;:15;:17::i;:::-;3349:9;:28::i;:::-;3290:93::o;5778:105::-;5265:8;:6;:8::i;:::-;-1:-1:-1;;;;;5251:22:0;:10;-1:-1:-1;;;;;5251:22:0;;5247:80;;;5848:29;5859:17;5848:10;:29::i;:::-;5247:80;;;5308:11;:9;:11::i;:::-;5778:105;:::o;5893:225::-;5265:8;:6;:8::i;:::-;-1:-1:-1;;;;;5251:22:0;:10;-1:-1:-1;;;;;5251:22:0;;5247:80;;;5999:29;6010:17;5999:10;:29::i;:::-;6036:12;6053:17;-1:-1:-1;;;;;6053:30:0;6084:4;;6053:36;;;;;30:3:-1;22:6;14;1:33;6053:36:0;;45:16:-1;;;-1:-1;6053:36:0;;-1:-1:-1;6053:36:0;;-1:-1:-1;;6053:36:0;;;;;;;;;;;14:1:-1;21;16:31;;;;75:4;69:11;64:16;;144:4;140:9;133:4;115:16;111:27;107:43;104:1;100:51;94:4;87:65;169:16;166:1;159:27;225:16;222:1;215:4;212:1;208:12;193:49;7:242;;16:31;36:4;31:9;;7:242;;6035:54:0;;;6104:7;6096:16;;;;;;5284:1;5247:80;;;5308:11;:9;:11::i;:::-;5893:225;;;:::o;5432:98::-;5484:7;5265:8;:6;:8::i;:::-;-1:-1:-1;;;;;5251:22:0;:10;-1:-1:-1;;;;;5251:22:0;;5247:80;;;5507:17;:15;:17::i;:::-;5500:24;;5247:80;;;5308:11;:9;:11::i;:::-;5432:98;:::o;5540:228::-;5265:8;:6;:8::i;:::-;-1:-1:-1;;;;;5251:22:0;:10;-1:-1:-1;;;;;5251:22:0;;5247:80;;;-1:-1:-1;;;;;5611:22:0;;5603:89;;;;-1:-1:-1;;;5603:89:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;5704:32;5717:8;:6;:8::i;:::-;5704:32;;;-1:-1:-1;;;;;5704:32:0;;;;;;;;;;;;;;;;;;;;;5743:19;5753:8;5743:9;:19::i;7175:312::-;7306:1;7277:17;:15;:17::i;:::-;-1:-1:-1;;;;;7277:31:0;;7269:40;;;;;;7316:58;7360:6;7368:5;7316:43;:58::i;:::-;7418:32;;;-1:-1:-1;;;7418:32:0;;;;;;;;;;;;5144:66;-1:-1:-1;;7410:45:0;;;7388:68;7381:76;;;;7464:17;7474:6;7464:9;:17::i;6673:371::-;6788:1;6759:17;:15;:17::i;:::-;-1:-1:-1;;;;;6759:31:0;;6751:40;;;;;;6844:41;;;;;;;;;;;;;;;;3846:66;-1:-1:-1;;6836:54:0;;;6805:86;6798:94;;;;6899:26;6918:6;6899:18;:26::i;:::-;6935:12;;:16;6932:107;;6963:12;6980:6;-1:-1:-1;;;;;6980:19:0;7000:5;6980:26;;;;;;;;;;;;;36:153:-1;66:2;61:3;58:11;36:153;;176:10;;164:23;;-1:-1;;139:12;;;;98:2;89:12;;;;114;36:153;;;274:1;267:3;263:2;259:12;254:3;250:22;246:30;315:4;311:9;305:3;299:10;295:26;356:4;350:3;344:10;340:21;389:7;380;377:20;372:3;365:33;3:399;;;6980:26:0;;;;;;;;;;;;;;;;;;;;;;;14:1:-1;21;16:31;;;;75:4;69:11;64:16;;144:4;140:9;133:4;115:16;111:27;107:43;104:1;100:51;94:4;87:65;169:16;166:1;159:27;225:16;222:1;215:4;212:1;208:12;193:49;7:242;;16:31;36:4;31:9;;7:242;;6962:44:0;;;7023:7;7015:16;;;;;6932:107;6673:371;;:::o;5342:80::-;5385:7;5265:8;:6;:8::i;:::-;-1:-1:-1;;;;;5251:22:0;:10;-1:-1:-1;;;;;5251:22:0;;5247:80;;;5408:8;:6;:8::i;6428:160::-;6491:8;:6;:8::i;:::-;-1:-1:-1;;;;;6477:22:0;:10;-1:-1:-1;;;;;6477:22:0;;;6469:85;;;;-1:-1:-1;;;6469:85:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;6561:21;:19;:21::i;3923:161::-;3846:66;4061:11;;4044:35::o;2815:415::-;2935:12;2932:1;2929;2916:32;3042:1;3039;3025:12;3022:1;3006:14;3001:3;2988:56;3083:14;3080:1;3077;3062:36;3115:6;3137:36;;;;3201:14;3198:1;3191:25;3137:36;3156:14;3153:1;3146:25;6128:141;5144:66;6246:11;;6230:34::o;4094:145::-;4157:37;4176:17;4157:18;:37::i;:::-;4206:27;;-1:-1:-1;;;;;4206:27:0;;;;;;;;4094:145;:::o;6279:139::-;5144:66;6384:22;6375:38::o;4249:313::-;4328:57;4367:17;4328:38;:57::i;:::-;4320:129;;;;-1:-1:-1;;;4320:129:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;3846:66;4519:31;4510:47::o;3439:244::-;3628:20;3667:8;;;3439:244::o

bzzr://3681c5e5d889264bb5b5e488588559992efc42e64899462b0b15e272ac431973